text:
Ce modèle a été introduit par H. A. Janssen en 1895 puis développé par John William Strutt Rayleigh en 1906 pour expliquer la loi de pression dans les silos à grains. En effet, il permet de répondre au phénomène d'éclatement de silo qui peut apparaître lorsque ce dernier est trop rempli. Ce modèle repose cependant sur des hypothèses fortes , d'autres modèles plus précis rendent mieux compte du phénomène.

Hypothèses
On considère un cylindre de rayon  rempli de grains sur une hauteur . La première hypothèse est de considérer le milieu granulaire comme un milieu continu de masse volumique .
Ensuite il vient 2 autres hypothèses :

 Une contrainte verticale  engendre une contrainte horizontale  qui lui est directement proportionnelle : . Le coefficient de Janssen  prend en charge l'effet des voûtes qui se forment à l'intérieur du milieu granulaire. Notons qu'on aurait  si la pression était isotrope, comme c'est le cas par exemple pour un fluide
 Contre la paroi nous sommes à la limite de l'équilibre, soit en notant  le coefficient de frottement, nous avons la relation entre les réactions normale et tangentielle :

Bilan des forces

Considérons une petite tranche de silo de hauteur  (surface  et surface latérale ). En projection sur , l'équilibre s'écrit :

La  de Newton donne :

On en déduit donc avec les 2 hypothèses de Janssen : . En injectant ce résultat dans l'équation d'équilibre et en y ajoutant l'expression du poids  nous avons :

En simplifiant par  nous obtenons finalement l'équation différentielle vérifiée par la contrainte verticale :

Avec la longueur caractéristique :

Profil de pression dans le silo

La contrainte verticale  vérifie une équation différentielle linéaire du premier ordre que l'on résout aisément avec la condition en haut de l'empilement :  :

Un tel profil signifie que la pression dans le silo sature. En effet, à une hauteur  fixée si l'on fait tendre  c'est-à-dire lorsque l'on remplit indéfiniment le silo, la contrainte sature .
En reprenant la  hypothèse de Janssen, on comprend ce qu'il se passe physiquement : lorsque l'on verse une masse de grain, une partie se répercute verticalement et l'autre latéralement (effet de "voûtes") et c'est cette dernière qui est responsable de l'éclatement des silos. Souvent la partie latérale du silo, contrairement au fond, n'est pas fabriquée pour résister à des charges importantes.

Masse apparente au fond du silo

Reprenons l'expression de la contrainte verticale, mais cette fois-ci au fond du silo :

Si l'on désire la masse apparente au fond du silo, celle-ci s'exprime comme  soit :

En notant  la masse critique et en remarquant que la masse théorique versée s'exprime comme , on obtient l'expression de la masse apparente en fond de silo en fonction de la masse théoriquement versée dans celui-ci :

Physiquement, ce résultat signifie que même si l'on remplit indéfiniment le silo, la masse que l'on mesurerait au fond ne dépasserait pas la masse critique . Dans un souci de conservation de la masse, on comprend bien que si l'on ne retrouve pas la masse versée au fond du tube c'est qu'une partie de celle-ci est absorbée par la partie latérale du silo.

Phénomènes de voûtes

Dans cette partie nous allons étudier des cas limites. Pour plus de simplicité, nous notons  la profondeur dans l'empilement. La pression dans celui-ci vaut donc en fonction de la profondeur :

Lorsque  (faibles profondeurs) :  autrement dit la masse apparente est proche de la masse versée, les zones inférieures subissent classiquement le poids des zones supérieures.

Lorsque  (grandes profondeurs) :  autrement dit la masse apparente est proche de la masse critique, les zones inférieures ne subissent plus le poids des zones supérieures.

En conséquence, on donne un sens physique à la longueur  : elle caractérise la position (en profondeur) des voûtes. Au-dessus de celles-ci on subit le poids de la colonne de grains alors qu'en dessous on en est protégé.

Notes et références

Voir aussi
 Matériau granulaire
 Cohésion des grains de sable
 Angle de talus naturel
 Silo (stockage)

Physique de la matière condensée|*

redpajama_set_name: RedPajamaWikipedia


From crossing into Canada with an experimental vehicle to overseeing a team charged with keeping research into space travel safe, Christie Swarts has experienced more than she anticipated in her life.
Christie, however, is doing just that as a manager of pressure systems recertification for Jacobs Technology Inc., a contractor for the NASA Langley Research Center in Virginia. She oversees a team of engineers and engineering technicians who inspect and certify the high-pressure systems that are used in research for everything, from atmospheric sciences to spacecraft and the next-generation of fighter jets.
Her team certified the systems used by researchers to test NASA's Orion spacecraft, which was built to take humans farther into space than anyone has gone before.
Christie's experience in supervising a team goes back to when she was a student at Alfred University in Alfred, New York, where she was the project manager for the institution's Hybrid Electric Vehicle (HEV) Challenge team.
The HEV Challenge was the third Advanced Vehicle Technology Competition of its kind. Students designed and built vehicles that operated on a variety of fuels, including M85, E100 and gasoline. The teams used vehicles supplied by Ford Motor Co., Saturn and Dodge. The design and overall dynamic performance of their vehicles were evaluated in events that included acceleration, handling, range, emissions, fuel economy and consumer acceptability.
Christie took part in the program from 1994-96, saying it contributed to her professional growth and provided valuable skills that she's taken with her.
Wearing all of those hats was put to the test when the team was attempting to cross an international border to get to the Motor City for a competition.
"We had a hybrid vehicle and the fastest way to get to Detroit from where we were in New York was through Canada," she said. "We had to figure out how we were going to go through customs with an experimental vehicle and it used ethanol so we had to figure out how much ethanol we could legally take across the border.
The HEV Challenge also meant working with art and design students to develop flyers for the team and marketing students to help spread the word to the local community of fundraising events.
Christie still keeps in touch with some of her former teammates and has followed the different challenges Argonne National Laboratory has created for students to participate in. She recommends students seriously consider getting involved because of the great experiences and skills that come with being part of the team.


1 Reassess how much value recruitment agencies are really giving you!
I like to use the analogy of Black cabs who with the advent of SAT Navigation, became creatures of another age! With LinkedIn and other social networks you can easily connect with many people with skills you require.
Many companies pay recruiters 10% commission; why not add this to the salary of the role you are advertising instead? It will make the job even more attractive. If you do want to use external sources how about about Peoples Bank for a more cost effective solution?
Some postings may cost you as little as £50 and are guaranteed to be in front of the right audience. By sharing your posts on social media, someone in your network may recommend you the perfect person for the job. Simple!
A thorough recruitment day will leave a few candidates shining by the end. Invite approximately fourteen candidates; hopefully about ten will arrive on the day (not everyone will turn up believe me). Last week, I had two who did not turn up for a graduate role paying a good wage with clear progression in one the world's biggest leisure companies. You know they will be the people moaning they cannot get a job in a years' time!
This should leave you with two candidates with relevant experience who are able to withhold information, able to stand out in a team and deal with information in a timely manner with a good eye for detail.
Take two candidates to an intense interview that is roughly 20 minutes long. Try not to be personable or make eye contact. Our clients can be challenging and I often want to see how the candidates react. Lighten the mood with a few team culture questions such as what's your favourite TV series and what is your favourite film. This gives me an idea of how they will 'fit' with the current team members.
I have not recruited anybody into a mid- level role from an external source in six years. You have to ask why the talent is not ready and why you are not. Creating a culture where you have open dialogue with team members ensures mutual respect and even if they decide to leave your company, assisting them with development should be a given. Other team members notice this and will react accordingly.
How do you recruit and plan succession in your team?


CAUTION: BEFORE USING ANY OF THESE PRODUCTS, YOU MUST BECOME COMPLETELY FAMILIAR WITH THE SAFETY AND HAZARD INFORMATION CONTAINED IN OUR MATERIAL SAFETY DATA SHEETS REGARDING THESE PRODUCTS. McGean-Rohco, Inc. (the Seller) presents the information contained herein without warranty and disclaims any liability arising from its use or misuse. Seller recommends use of the information and Seller�s products solely in commercial process which are specified by Seller and which do not violate any third party patent rights or any laws or regulations. THE SELLER MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCEPT AS EXPRESSLY STATED IN THE SELLER�S SALES CONTRACT OR SALES ACKNOWLEDGMENT FORM.
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Back on 24 January 2017, Fiona the hippo was born 6 weeks early at the Cincinnati Zoo.
Nowadays she's a big, strong juvenile hippopotamus (Hippopotamus amphibius), but it took a lot of love and caring to get her there – she's the smallest hippo born in captivity to ever survive.
Her birth weight was only 13 kilograms (29 pounds). The recorded range of birth weights before this was between 25 to 35 kg (55 – 120 lbs).
By June that year Fiona had reached the normal weight for her four-month age: a whomping 144 kg (317 pounds).
During her growing up process, the Cincinnati Zoo and Botanical Garden made a bunch of video, took lots of pictures, and shared Fiona's journey with the whole words on a dedicated Facebook page, 'The Fiona Show'.
Earlier this year, the team released a collage video of previously unseen footage of baby hippo Fiona getting a bath, pats, and snuggles with her human carers. It's the purest thing you ever will see.
We warned you. The cuteness is almost too much to bear.


text:
Q: How do i prove the formula for the volume of a cone? I need a general proof for any form of a cone, not a right circular one.

A: Suppose that the base has area $a$ and the cone has height $h$, measured perpendicular to the base.  Choose a system of coordinates, so that the cone point is at $z = 0$, and the altitude meets the base at $z = h$.  In general, the cross section at arbitrary $z$ is a figure similar to the base with area
$$
A(z) = a \left( \frac{z}{h} \right)^2.
$$
Now integrate to find the volume.
$$
\begin{align}
V &= \int_0^h A(z) \, dz \\
&= \int_0^h a \frac{z^2}{h^2} \, dz \\
&= \left. \frac{a}{h^2} \frac{z^3}{3} \right|_0^h \\
&= \frac{ah}{3}.
\end{align}
$$

redpajama_set_name: RedPajamaStackExchange


text:
Q: Django: Group by date over a datetime field I have for example a model like this:
class Transaction(models.Model):
    amount = models.FloatField()
    seller = models.ForeignKey(User, related_name='sells', on_delete=models.CASCADE)
    buyer = models.ForeignKey(User, related_name='purchased', on_delete=models.CASCADE)
    created_at = models.DateTimeField(auto_now_add=True)

I want to group by all transactions seperated by each date and find some of them. If the created_at is of type DateField I could simply find the count on each day by this query:
Transaction.objects..values('created_at').annotate(count=Count('created_at_date')

But this doesn't work DateTimeFeilds.
My question is how can i find total count of transactions for each date for this model type.

A: The following will work for django 2.1 and above.
 Transaction.objects.values('created_at__date').annotate(count=Count('id')).values('created_at__date', 'count').order_by('created_at__date')

You need to use __date after the name for lookup and need to put an order_by at the end.
Not sure about the previous django versions.


#TaxReform is a scam on the Middle Class. Those with any understanding of tax and economics knew it the day the plan was first released.
RT jennybethm "Americans are seeing higher wages, worker bonuses, job growth and reinvestment into the American economy — all thanks to the Tax Cuts and Jobs Act. realDonaldTrump's teapartypatriotsaction.org/news/democrats… #TeaParty #TaxReform #taxcutswork"
Thanks to #taxreform & regulatory reform, our nation is creating #jobs & increasing wages, but we have more work ahead to help those individuals who are in the shadows & struggling to find employment.


text:
Pathology consultation on influenza diagnostics
Allison R. McMullen, Neil W. Anderson, Carey Ann D. Burnhamfor
Objectives: To describe the strengths and limitations of the available influenza diagnostics, with a focus on rapid antigen detection assays and nucleic acid detection assays. Methods: A case-based presentation is used to illustrate the potential limitations of rapid antigen detection assays for influenza. Results: Influenza is a seasonal illness; estimates attribute influenza to approximately 200,000 hospitalizations and 41,000 deaths in the United States annually. Antigen detection assays for influenza are rapid and convenient, and thus are widely used in a variety of health care settings, even though the sensitivity of these assays may be suboptimal. The United States Food and Drug Administration has recently created new guidelines intended to improve the oversight and performance characteristics of influenza antigen detection assays. Molecular assays, although more costly and complex, are more sensitive and may be designed to simultaneously detect multiple respiratory pathogens within a single assay. Conclusions: Diagnostic assays for influenza can vary greatly with regards to analytical performance characteristics, complexity, turnaround time and cost. This can have important patient care and infection prevention implications.
https://doi.org/10.1093/AJCP/AQW039
United States Food and Drug Administration
Nucleic acid amplification tests
Rapid influenza diagnostic test
Respiratory virus
McMullen, A. R., Anderson, N. W., & Burnhamfor, C. A. D. (2016). Pathology consultation on influenza diagnostics. American Journal of Clinical Pathology, 145(4), 440-448. https://doi.org/10.1093/AJCP/AQW039
Pathology consultation on influenza diagnostics. / McMullen, Allison R.; Anderson, Neil W.; Burnhamfor, Carey Ann D.
In: American Journal of Clinical Pathology, Vol. 145, No. 4, 01.04.2016, p. 440-448.
McMullen, AR, Anderson, NW & Burnhamfor, CAD 2016, 'Pathology consultation on influenza diagnostics', American Journal of Clinical Pathology, vol. 145, no. 4, pp. 440-448. https://doi.org/10.1093/AJCP/AQW039
McMullen AR, Anderson NW, Burnhamfor CAD. Pathology consultation on influenza diagnostics. American Journal of Clinical Pathology. 2016 Apr 1;145(4):440-448. https://doi.org/10.1093/AJCP/AQW039
McMullen, Allison R. ; Anderson, Neil W. ; Burnhamfor, Carey Ann D. / Pathology consultation on influenza diagnostics. In: American Journal of Clinical Pathology. 2016 ; Vol. 145, No. 4. pp. 440-448.
@article{c7ec83bc2d074024899e3fc8b756220d,
title = "Pathology consultation on influenza diagnostics",
abstract = "Objectives: To describe the strengths and limitations of the available influenza diagnostics, with a focus on rapid antigen detection assays and nucleic acid detection assays. Methods: A case-based presentation is used to illustrate the potential limitations of rapid antigen detection assays for influenza. Results: Influenza is a seasonal illness; estimates attribute influenza to approximately 200,000 hospitalizations and 41,000 deaths in the United States annually. Antigen detection assays for influenza are rapid and convenient, and thus are widely used in a variety of health care settings, even though the sensitivity of these assays may be suboptimal. The United States Food and Drug Administration has recently created new guidelines intended to improve the oversight and performance characteristics of influenza antigen detection assays. Molecular assays, although more costly and complex, are more sensitive and may be designed to simultaneously detect multiple respiratory pathogens within a single assay. Conclusions: Diagnostic assays for influenza can vary greatly with regards to analytical performance characteristics, complexity, turnaround time and cost. This can have important patient care and infection prevention implications.",
keywords = "Diagnostics, Influenza, Nucleic acid amplification tests, Rapid influenza diagnostic test, Respiratory virus",
author = "McMullen, {Allison R.} and Anderson, {Neil W.} and Burnhamfor, {Carey Ann D.}",
doi = "10.1093/AJCP/AQW039",
T1 - Pathology consultation on influenza diagnostics
AU - McMullen, Allison R.
AU - Anderson, Neil W.
AU - Burnhamfor, Carey Ann D.
N2 - Objectives: To describe the strengths and limitations of the available influenza diagnostics, with a focus on rapid antigen detection assays and nucleic acid detection assays. Methods: A case-based presentation is used to illustrate the potential limitations of rapid antigen detection assays for influenza. Results: Influenza is a seasonal illness; estimates attribute influenza to approximately 200,000 hospitalizations and 41,000 deaths in the United States annually. Antigen detection assays for influenza are rapid and convenient, and thus are widely used in a variety of health care settings, even though the sensitivity of these assays may be suboptimal. The United States Food and Drug Administration has recently created new guidelines intended to improve the oversight and performance characteristics of influenza antigen detection assays. Molecular assays, although more costly and complex, are more sensitive and may be designed to simultaneously detect multiple respiratory pathogens within a single assay. Conclusions: Diagnostic assays for influenza can vary greatly with regards to analytical performance characteristics, complexity, turnaround time and cost. This can have important patient care and infection prevention implications.
AB - Objectives: To describe the strengths and limitations of the available influenza diagnostics, with a focus on rapid antigen detection assays and nucleic acid detection assays. Methods: A case-based presentation is used to illustrate the potential limitations of rapid antigen detection assays for influenza. Results: Influenza is a seasonal illness; estimates attribute influenza to approximately 200,000 hospitalizations and 41,000 deaths in the United States annually. Antigen detection assays for influenza are rapid and convenient, and thus are widely used in a variety of health care settings, even though the sensitivity of these assays may be suboptimal. The United States Food and Drug Administration has recently created new guidelines intended to improve the oversight and performance characteristics of influenza antigen detection assays. Molecular assays, although more costly and complex, are more sensitive and may be designed to simultaneously detect multiple respiratory pathogens within a single assay. Conclusions: Diagnostic assays for influenza can vary greatly with regards to analytical performance characteristics, complexity, turnaround time and cost. This can have important patient care and infection prevention implications.
KW - Diagnostics
KW - Nucleic acid amplification tests
KW - Rapid influenza diagnostic test
KW - Respiratory virus
U2 - 10.1093/AJCP/AQW039
DO - 10.1093/AJCP/AQW039
10.1093/AJCP/AQW039

redpajama_set_name: RedPajamaCommonCrawl


text:
College Hoops Today
Serving College Basketball 365 Days a Year
Episode 377 — New Mexico's Richard Pitino
New Mexico's Richard Pitino is making great progress with the program and has the Lobos off to a 16-2 start. With huge road wins at Saint Mary's and San Diego State, the Lobos are back in the national spotlight. Is their dynamic back-court the best in the country? How were they able to build the program back up after some down years? Why the Mountain West Conference is in a healthy spot. And how getting home court advantage back has rejuvenated the town and the players in the program. Plus, parity rules! And four first-team All Americans have emerged.
Written by Jon Rothstein
Jon Rothstein has been a college basketball insider for CBS Sports since 2010 and a contributor to the CBS Broadcast Network since 2016. He also joined FanDuel as a Content Creator in 2022. Rothstein is also the host of the College Hoops Today Podcast via Compass Media Networks. - Learn More
Jon Rothstein: View My Blog Posts
Episode 378 — Xavier's Sean Miller
Episode 376 — Purdue's Matt Painter
Episode 375 — Missouri's Dennis Gates
Episode 374 — Mississippi State's Chris Jans
The Rothstein Files Archives
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Jon Rothstein is college basketball's hungriest insider. On CollegeHoopsToday.com you will find his daily entries and insights on College Basketball 365 days a year.
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When you need transportation logistics to manage your inventory and get it to the right destination, we can help. With over 20 locations across the U.S. We have the network in place to solve your transportation needs.
Our freight network allows your freight solutions to be met at one place instead of relying on differeent vendors and hoping there isn't a delay. Logical Logistics ensures it arrives on time, every time.
We offer freight warehousing across the globe to pre-position your assets and products to ensure your company can focus on expanding while we carry you there.


Clustered storage is not just for large enterprises. This tips explores how clustered network-attached storage (NAS) can be leveraged in the small-midsized business (SMB) market.
Clustered storage is often associated with high performance computing, where the primary focus is on access to large files or data sets. Consequently, there is a perception that clustered storage systems can only support I/O operations for specific target vertical markets.
Another myth is that clustered network-attached storage (NAS) file serving solutions are only for large enterprises. The reality is that SMBs are adopting these solutions to enable scalable capacity, performance and availability in a modular, pay as you grow approach.
A clustered storage system scales to meet growth demands or high availability, including business continuance and disaster recovery requirements, beyond the capabilities of a single storage system.
In the case of a clustered NAS, a clustered file system can be employed that spans across all active nodes with any node being able to concurrently handle file requests. Some clustered file systems also support parallel access as well as concurrent access enabling either multiple nodes to work together to handle large parallel file access, or, multiple nodes each responding to different file request or some combination.
Another dimension of scaling for clustered storage beyond performance is connectivity and capacity with some solutions being able to vary the number and type of different network and storage attachment interfaces along with the amount and type of different tiered storage devices. Another aspect of scalable clustered NAS and file serving solutions are the ability to vary the amount of main memory and number of processing cores or CPUs with some solutions including the ability to leverage off the shelf existing or new servers.
An advantage of the software based model is that vendors can provide technology and economic benefits by using commodity components to reduce cost, boost performance and tailor storage to meet various needs.
Keep in mind that more nodes, processors, ports and devices do not guarantee more performance. How the solution's software is architected to use the hardware resources and avoid bottlenecks while providing transparent data access directly affects performance.
For performance applications, you should verify vendor claims using published industry standard benchmarks that simulate your own applications and workload levels.
Some products support scalable performance for large sequential reads or writes, including parallel access of large files or support for small random reads and writes across a large number of files. Other products support both small and large I/O access of files concurrently and in parallel without introducing performance bottlenecks. To learn more about some of the myths and realities that permeate confusion around clustered NAS and file serving, check out the "Dispelling myths about clustering NAS and file servers" tip.


text:
Oregon ArtsWatch
Dance preview: Restaging two great Merce Cunningham dances
Robert Swinston, who has been immersed in Merce Cunningham dances for almost 40 years, brings "BIPED" and "Beach Birds" to town
By: Barry Johnson
Published November 19, 2019, in CULTURE, DANCE
I love that dance is so transient. I hate that dance is so transient.
I love the urgency, the surprise, the physical shudder of understanding that a great dance delivers. I hate that once it's over, it's impossible to duplicate. We in the audience, after all, will never precisely pass in this way again, and neither will the dancers onstage. That's where the urgency comes from—the desire to hold on to a particular, delightful filament of moments in time.
So, yes, I'm talking about the late Merce Cunningham and this weekend's visit (November 21-23) by the French company CNDC-Angers, part of White Bird's 2019-20 season. The company will perform two of Cunningham's astonishing works of the 1990s, Beach Birds and BIPED, and if anyone is going to capture lightning in a bottle, it's going to be these guys.
CNDC-Angers will perform Merce Cunningham's "Beach Birds" this weekend at the Newmark Theatre/Photo by Charlotte Audureau
CNDC-Angers is led by Robert Swinston, who was a central part of the Cunningham company for more than 30 years, performing in both Beach Birds and Biped. He began staging Cunningham dances in1993, and after Merce died in 2009, he became both the company's director for its final two years of existence and a trustee of the Merce Cunningham Trust. He's led CNDC-Angers since 2013, working with Cunningham material of various kinds and with other companies along the way.
The confluence of the Trust, Swinston, and the nature of Merce's dances, which are organized around a defined dance technique, mean that we're going to see something very close to the original Beach Birds and BIPED at the Newmark Theatre this weekend. The can't take us back to the '90s or the experience of watching these dances performed for the first time, but the only thing missing entirely will be the shock of the new—because choreographers around the world have been influenced by Merce generally and these two dances in particular. I think that if you're a dance fan, you're going to see this right away.
I emailed a few questions about the concert to Swinston and he was kind enough to reply.
"The Breath of Life": Boomer regrets
In David Hare's play at Portland Center Stage, Gretchen Corbett and Julia Brothers deal with loss and fear
Published June 7, 2019, in THEATER
If I were going to guess (and I suppose I am), I'd suggest that the moment Boomers in the audience will react to most immediately, probably with a snort, comes near the start of the first scene after intermission in David Hare's 2002 play, "The Breath of Life."
"The enemies of the bourgeois, isn't that what we called ourselves?," asks Madeleine, now in her sixties, still working, and still true to her leftish politics. "And how did it turn out?"
These aren't real questions. Madeleine continues: "The obituary of my generation. We left no loft unconverted. The revolutionary project: to leave the world a little more chic than we found it. Future historians will write: 'these are the people who took the world one notch up-market.'"
Julia Brothers, left, and Gretchen Corbett in David Hare's "The Breath of Life" at Portland Center Stage/Photo by Kate Szrom
Right. "We left no loft unconverted." In Portland we might say, "We invented the Pearl District." Or: "We planted million dollar condos on North Williams."
Madeleine and Frances, the only two characters in the play, exchange a few more lines, and then Madeleine again:
"We imagined we were protesting Vietnam. Looking back it seems like some us were protesting their own future. A rare moment of prescience. A short carnival of revolt before the long luxury of self-improvement. Five years of protest. Thirty of acquiescence."
This is Hare at his best, really. Sharp, acerbic, funny, keen to the dilemmas of his generation (which also happens to be mine), of the failures of politics, religion, the American empire, and then the wreckage of regret they, we, have left behind. Other Hare plays may be more satisfying as a whole—maybe "Plenty," "Racing Demon" or "Skylight"—but "The Breath of Life" is a nicely concentrated dose of Hare. (He's also good at thrillers: "Collateral" on Netflix is a fine case in point.)
Although the production of "The Breath of Life" at Portland Center Stage was disrupted right before opening night when Sharonlee McLean, who was set to play Frances, dropped out of the show, it has found sure footing with Julia Brothers, who is now starring alongside Gretchen Corbett's Madeleine.
Remembering Lyndee Mah
The Portland vocalist was also a crucial community resource for artists
Published May 22, 2019, in CULTURE, MUSIC
Every culture needs at least one Lyndee Mah—an indomitably positive source of energy, compassion and commitment to art, a connector and facilitator, an advisor and advocate, someone to console us when that is necessary. Fortunately for Portland, we had Lyndee Mah herself. A gifted artist, Mah was possibly even more gifted at the creation of community, in her case, a community that included many artists.
Mah died in her sleep on April 1 from a heart attack. She was in Spokane, Washington, caring for her brother Marshall Mah. She was born in Idaho Falls on August 29, 1958. She studied music at Mt. Hood Community College and finished her general education studies at PSU.
Lyndee Mah during her House Concert Series with her A String Ensemble./Photo by Julie Keefe
Mah was a vocalist in Portland for more than 20 years. She was a founding member of the band Pink Martini and collaborated with a host of Portland musicians and dancers over the years, including 3 Leg Torso, the late pianist Janice Scroggins, and choreographer Gregg Bielemeier. She created "E`-Bon E`-Bon," an original mixed-media, musical-memoir performance piece, based on her Chinese-European-American heritage, and she performed with Imago and Liminal theater companies. She touched, literally, hundreds more at her home hair salon.
Mah is survived by her partner Elahi Bradley-Muhammad and her son, Halston Mah-Minniweather.
A celebration of Lyndee K. Mah's life will be held 7-10 pm August 4 at the Lan Su Chinese Garden, 239 NW Everett Street. Friends, admirers and collaborators of Lyndee's will honor her incredible artistic and cultural legacy in this community.
Editor's Note: Choreographer Linda K. Johnson gathered remembrances of Mah from six of the people whose lives she touched. We appreciate her efforts.
Lyndee Mah performing at one of her House Concerts with guitar given to her by Kristy Edmunds/Photo by Julie Keefe
Courtney Von Drehle, musician and composer
I first got to know Lyndee when 3 Leg Torso worked with choreographer/dancer Gregg Bielemeier, and we were enlisted for the music, with Lyndee as our vocalist. Working with Lyndee, who had been Pink Martini's first vocalist, was our first collaboration with a singer. We went over to Lyndee's big old house, and coming into her space, with its deep purple curtains, various adornments on the walls—both stately and casual at the same time—right away I felt at home. Downstairs, in the basement, was Lyndee's salon, where I, and many I know, would visit for Lyndee's transformative magic. She knew how to make us look good, and chatting away while her scissors orbited our heads, with her easy going and real nature, she'd make it easy to transcend surface connection, and make us feel good in a far deeper way than just one of her glorious hair cuts alone could provide. It was natural for Lyndee to share her deep empathy and caring with all of those around her, and her home reflected the warmth that she embodied.
Arriving at Lyndee's for rehearsal would often start with some hanging out on the porch, a fresh cup of coffee in hand, chatting with her partner, Brad, who like Lyndee has an easy ability to connect with others in a deep way. Moving inside and working on music was always relaxed and playful, qualities Lyndee would bring to her performances. I remember a particular Conduit benefit I performed where Lyndee was the MC. At one point, out of the blue, she started beating the microphone against her chest and doing a little rap, a spontaneous departure from the script that brought the room together. I'd seen her and Janice Scroggins perform as a duo at Conduit a while before that, and I was deeply moved by their music. One tune in particular, with the lyrics full of reminiscent observations from a later point of view in life, just floored me. With Janice's always exquisite playing and Lyndee's rich and present vocals, they were a powerful duo, two masterful musicians at play.
Lyndee was resourceful and self-reliant. From her independent hair salon, her voice lessons, teaching Body Mapping to musicians, to putting on her one-woman show, Lyndee found her own way forward.
Oregon Shakespeare Festival: The road continues
Published May 17, 2019, in CULTURE, THEATER
Earlier this month I landed in Ashland to see the first five plays of the 2018-19 Oregon Shakespeare Festival season, Bill Rauch's last as artistic director.
The plays under inspection here include:
the vastly popular stage version of the John Waters film "Hairspray"
Lauren Yee's instantly (and deservedly) popular "Cambodian Rock Band"
an "As You Like It" that preserves the "Shakespeare" in the "Oregon Shakespeare Festival" and also interprets the play in a progressive way
the world premiere of long-time festival favorite Octavio Solis's "Mother Road"
and "Between Two Knees," a seriously pointed sketch comedy by the Native American improv group The 1491s and another world premiere.
Last season I made a similar trip to see a similar batch of new productions, relatively soon after the announcement that Rauch was heading for New York to become the first artistic director of the Perelman Center in New York City. What struck me then was how far the festival had evolved during Rauch's tenure: "Suddenly, they [the plays] became a sort of emblem of the changes that Rauch has brought to the festival—and to American theater in general—during his run at OSF, which began in 2007.
What changes are we/was I talking about?
Jessica Ko and Roman Zaragoza in director Rosa Joshi's production of
"As You Like It" at the Oregon Shakespeare Festival, 2019. Photo: Jenny Graham.
"Rauch was ahead of the times at OSF, although he was also drawing on important changes initiated by previous artistic directors Henry Woronicz and Libby Appel. From the beginning he explicitly linked the festival to social change, both internally and onstage, embracing diversity, feminism and social justice, well ahead of other regional theater companies and even national equality movements—#blacklivesmatter, #metoo, #occupy. During his tenure accessibility projects flourished, sharpened their focus, and had a real effect on how the festival does business and what it puts onstage."
This first round of plays in the 2019 season follows and extends the programming developments Rauch began in 2007. The productions themselves retain the high-end production values the festival is known for, and they are populated with persons of color, tell stories about communities the festival (along with most of the rest of American theater) once neglected and have the edgy energy that new plays, new voices, new actors and directors can bring.
Theater news: Artists Rep prepares for another leap
Artists Rep has big plans for keeping its theater space in downtown Portland in downtown Portland—a two-theater complex with room for its ArtsHub partners.
Published April 22, 2019, in NEWS & NOTES, THEATER
Artists Repertory Theatre hired J.S. May to be its executive director less than six months ago, and he and his board are already about to make a big move—a $10 million-plus capital campaign that will redesign and renovate its building on Southwest Morrison Street.
Just looking at the recent financial history of the company, that qualifies as "jaw-dropping." Since November 2017, the company has: 1) incurred a $309,000 lien from the IRS on unpaid payroll taxes, 2) parted ways with previous executive director Sarah Horton, 3) announced the sale of half its property at 1515 SW Morrison St. to a Texas-based real estate company, which will develop it into a 22-story residential tower (the sale closes on June 1, May says), 4) received an anonymous donation worth $7.1 million, and 5) notched another $500,000 donation that it needed to help shore up the half of the property the company will retain, a requirement of the sale.
The building concept by Lever Architecture for the proposed renovation of Artists Repertory Theatre/Courtesy Artists Repertory Theatre
The influx of money resolved the IRS problem, paid off the mortgage on the building, and covered some substantial bills and debts the company had accrued. Did it also tap out the company's likeliest donors for the capital campaign? May seemed pretty confident about raising the money Artists Rep needs last week when we went over the company's plans, primarily because of the value proposition: For $10-11 million Artists Rep will be able to build a theater complex worth more than $30-35 million, May said, if you had to buy the land, too. The proceeds of the sale of the half-block has already jump-started the process.
Commentary: How dead is OCAC?
It's Craft Spring as various groups mobilize to keep Oregon College of Art and Craft alive
Published February 22, 2019, in CULTURE, FEATURED, NEWS & NOTES, VISUAL ART
What happens when you try to close the debate before the debate ever gets started? At this point the Oregon College of Art and Craft board is starting to find that out.
During the week since my last commentary on the OCAC board's decision to close the college and sell the campus, a lot has happened, much of it in the form of good, old-fashioned community organizing and behind-the-scenes negotiating. Of course, you don't have to look far on social media to detect some anger and vitriol, too.
The primary center of popular opposition to OCAC's plan to close happens to be… Friends of OCAC, which was started in December "to share the importance of this historic and celebrated institution with a new generation of Portlanders through events and projects designed to connect, support, and grow the widespread OCAC community," according to its website.
@KATUNews @fox12oregon @orartswatch @KOINNews @Oregonian Oregon College of Art and Craft board meeting protest corner of Barnes and Leahy pic.twitter.com/Dg1UZSj9jE
— Kelly J. (@KellyResists) February 20, 2019
Friends of OCAC has asked its supporters to sign a letter that invites the OCAC board to come to a town hall to discuss OCAC's financial situation and do some "constructive brainstorming" to support the school and its programs. The group suggests Monday, February 25. OCAC agreed to a much smaller meeting this weekend (or maybe even today) with a few representatives from the Friends, the faculty and the board.
The February 20 protest against the OCAC's decision to sell the campus and shut the college without significant debate within the OCAC community.
I was drawn to a couple of sentences that support the idea that transparency (or democracy or whatever you choose to call it) has been a problem at OCAC and suggests a way to remedy that problem.
"Over the past few years, and especially during the merger and closure decision-making processes, the extended members of the community have felt left out of the information loop. Friends of OCAC wishes to address these concerns by connecting OCAC's extended network back to the school, inviting them home and making them feel welcome."
The first five signatories on the letter are Dakotah Fitzhugh (community member), Mardy Widman (a much beloved former OCAC staffer), Judilee Fitzhugh (OCAC alum and an adjunct faculty member in the fibers department), Marilyn Zornado (Extension program instructor), and Georgiana Nehl (drawing/painting and foundations professor emerita). And then more than 1,000 names follow, many of them well-known former students, faculty members, staffers and active arts supporters. When I look over the list, I think, "These people are enough to prove the viability of OCAC in some form or another going forward, just by themselves." They are still taking names, so you can join this august group yourself. All your asking for is an open discussion about the future of the college.
Generally, the signatories give their name and their relationship to OCAC. I quite enjoyed the connection that Shay Gallegos offered: "I have a friend that has gone here and it has been incredible in her life. It's so sad knowing that a great institution like this might close. Please take the time to think of how great it has been for past students as well as hopefully future ones!!" Exactly.
Meanwhile, I've been exchanging emails and phone calls with architect and former Portland City Council candidate Stuart Emmons, who has been trying to drum up some interest for OCAC in the city's philanthropic community. "I really think it can be saved," he said. "It can be saved and it should be saved." He's put together an in-depth strategic plan that leads to solvency over the next three years, and he's trying to advocate for a some sort of property sale-leaseback plan that will keep the college going while it sorts things out. He thinks that better recruitment of new students, debt delay (the college owes a local bank more than $1 million, he said) and a better approach to fundraising will lead OCAC out of its current situation.
He also thinks that the board should favor proposals that would keep the OCAC campus in the craft education business, an entirely reasonable suggestion. His frustration with OCAC seems to be similar to that of the Friends group—the board doesn't seem to be open to any other approach than its own. And the board's approach to it all seems to be tag it, bag it and bury it as swiftly as possible, and then maybe we can forget it. Emmons, though, is like the kid who looks into the coffin and hollers, "Hey, grandpa's not dead." And then watches gramps shudder, wheeze and sit bolt-upright to the amazement of all. Or maybe I've seen too many movies ("The Shipping News" is a good example of the genre.)
Because how do we know that OCAC is actually dead if the board won't explain the situation to us? Classes are being taught there even as I type.
Anyway, Emmons has many lines in the stream (just to move my metaphor away from grandpa and his premature burial)—potential buyers of the property or major donors to a re-dedicated college or craft center.
Finally, a large and growing alumni group has emerged and has also petitioned the OCAC board. Here's the first paragraph of the group's letter:
"As members of the alumni of the degree programs at the Oregon College of Art and Craft, together with the greater OCAC community, we have been devastated by the news of the Board of Trustee's decision to terminate the degree programs at the college. We are further alarmed by rumors of the rapid pace with which steps are being taken to entertain offers to sell the campus or otherwise dismantle this incredible institution. As critical stakeholders in the make-up of the college, we urge you to delay any decisions that would bring about a permanent end to OCAC. Instead, we appeal to you to partner with us and other important stakeholders of the college to explore alternative solutions to the current crisis."
And the group has an additional request. "Before it is too late, please give us the necessary time to bring new calls for support to potential donors, to civic and cultural leaders and to the greater Portland community. We also request that an alumni representative not serving on the Board be in attendance during the presentation of any offers to purchase the college or the property."
The names on the petition, like the Friends list, is full of artists, many of them recent OCAC graduates.
Will the resisters triumph? In a way, they already have, because they are reminding us of important lessons we learned and perhaps forgot, or lessons we never learned and should have—lessons that have to do with working together for the common good.
Commentary: Democracy and the arts
The closure of Oregon College of Art and Craft and why we couldn't help
Let's say someone said, "Tell me, Mr Bones, what should happen next, now that Oregon College of Art and Craft has decided to close the college and sell the campus?"
I'd probably sputter, make a few false starts, and then I'd say something like this:
The campus, designed by architect John Storrs and pioneering landscape architect Barbara Fealy, is a sweet example of late Northwest modern design— where the shed merges with modernism and is informed by the wise touch of the Arts and Crafts movement. It should be preserved.
The site should continue the celebration of craftwork in this place, which begins some 10,000 years ago, when the first tribes started making tools to fit their hands and please their eyes using the plants and stones of the local forests, lowlands, mountains and rivers. It should be a place where anyone can learn this history—native, pioneer, arts and crafts movement, and contemporary—and learn to make their own objects, whether in a folk craft style or an art craft design. Its studios should be buzzing, its library packed, its meeting rooms full of people talking it all over. It should be vitally interested in the crucial meeting of craft and environment, art and ecology, technology and nature. A visitor should be able to take a class, see great examples of craft work, buy work at the gift shop, research in the library, hear a lecture, and eat a great lunch.
"But Mr. Bones, what are the chances of all that happening?"
Just about nil.
"So what WILL happen?"
I don't know for sure, but it looks like all elbows and bulldozers to me.
Art review: Beneath the surface seductions
45th Parallel's real-time music video
Fish, ink, and paper
The new history: Dreams Deferred
Vision 2020: Ka'ila Farrell-Smith
Five Oaks: What's in a name?
Vision 2020: Yulia Arakelyan and Erik Ferguson
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Trump Openly Admits Voting Reforms In COVID Relief Bill Would Endanger Republicans
President Donald Trump takes part in a meeting with African-American leaders in the Cabinet Room of the White House on February 27, 2020. (Photo by NICHOLAS KAMM/AFP via Getty Images)
By Cristina Cabrera
March 30, 2020 11:43 a.m.
You're not supposed to say the quiet parts out loud, Mr. President!
On Monday morning, President Donald Trump told the co-hosts of "Fox and Friends" that House Democrats had tried to include "crazy" proposals in the $2 trillion COVID-19 relief package that passed last week, including measures aimed at easing the voting process for Americans during the coronavirus outbreak.
"They had things, levels of voting that if you ever agreed to it you'd never have a Republican elected in this country again," Trump said.
"They had things in there about election days and what you do and all sorts of clawbacks and they had things that were just totally crazy," he continued.
Those proposals, which were opposed by Republicans, included billions in funding for states to be able to carry out mail-in voting systems as Americans are urged (and in some states, even required) to stay home to prevent further spread of the virus.
The House Democrats' bill would have also made Election Day a national holiday while imposing a national requirement to allow 15 days of early voting.
Watch Trump below:
Trump says if voting reforms got passed, "you'd never have a Republican elected in this country again." pic.twitter.com/4tKFSTY5Oi
— TPM Livewire (@TPMLiveWire) March 30, 2020
Cristina Cabrera (@crismcabrera) is a newswriter at TPM based in New York. She previously worked for Vocativ, USA Today and NY1 News.
Donald Trumptv clipvoting rights
By Summer Concepcion
January 18, 2022 7:05 p.m.
The Jan. 6 committee has reportedly subpoenaed and obtained phone records from Eric Trump, one of former President Trump's adult…
By Josh Kovensky
Days after the November 2020 election, the Oath Keepers were preparing.
The congressional Jan. 6 Committee on Tuesday issued subpoenas to Rudy Giuliani and other key players in Donald Trump's orbit.


text:
\section{Introduction}

The possibility of violation of the Lorentz symmetry has been widely discussed in the recent literature (see
e.g. \cite{Kostelecky1}). Indeed, the spontaneous breaking of this fundamental symmetry
may arise in the context of string/M-theory due to existence of
non-trivial solutions in string field theory  \cite{Kostelecky2},
in loop quantum gravity \cite{Gambini,Alfaro},
in noncommutative field theories
\cite{Carroll} \footnote{Notice however, that in a model where a scalar field is coupled to gravity, Lorentz
invariance may hold, at least at first non-trivial order in perturbation theory of the
noncommutative parameter \cite{Bertolami}.}, in quantum gravity inspired spacetime foam
scenarios \cite{Garay} or through the spacetime variation of fundamental coupling constants \cite{Lehnert}.
This breaking could be tested, for instance, in ultra-high energy cosmic rays \cite{Sato}.

Recently, it has been proposed a method of introducing cubic modifications into dispersion relations
by means of dimension five operators for fermions \cite{Myers}. The upper bounds for the parameters
that characterize these modifications are based on low-energy experiments, being $|\xi|\lesssim10^{-6}$
for the electromagnetic sector, $|\eta_{Q,u,d}|\lesssim10^{-6}$ for first quark generation
and $|\eta^e_{L,R}|\lesssim10^{-5}$ for electrons \cite{Myers}.

In this Letter, we shall consider cubic Lorentz-violating terms for fermions in the non-relativistic
limit and obtain new upper bounds for neutrons, based on spectroscopical results for the ${}^9\textrm Be^+$
ground state, as discussed by Bollinger \emph{et al.} \cite{Bollinger}.

\section{The model}

We consider terms in the Lagrangian density which describes a Dirac spinor field,
correspondig to dimension five operators which break the Lorentz symmetry by means
of a background four-vector $n^{\mu}$ \cite{Myers}. These terms have the following features:
(i) have one more derivative than the usual kynetic term,
(ii) are gauge invariant, (iii) are Lorentz invariant,
apart from  $n^{\mu}$, (iv) are irreducible to lower dimension operators by means of the equations of
motion and (v) do not correspond to a total derivative and are suppressed by a single power of the Planck mass,
$M_P$.

Under these conditions, the two possible operators can be combined in the following form \cite{Myers}:
\begin{equation} \label{dirac_lagrangian_1}
\mathcal{L}_f={1\over M_P}\bar{\psi}(\eta_1\not\!n+\eta_2\not\!n\gamma_5)(n\cdot\partial)^2\psi~~.
\end{equation}

The parameters $\eta_1$ and $\eta_2$ can, for instance, in the case of string theory,
be regarded as vacuum expectation values of tensor operators
arising from the spontaneous symmetry breaking mechanism \cite{Kostelecky2}.

First, it should be pointed out that the Lagrangian density Eq. (\ref{dirac_lagrangian_1}) is not
symmetric in what respects the fields $\psi$ and $\bar{\psi}$ and, thus, one should include its hermitian conjugate.
The complete fermionic Lagrangian density is, hence, given by
\begin{eqnarray} \label{dirac_lagrangian_2}
\mathcal{L}_f&=&\bar{\psi}(i\not\!\partial-m)\psi+\qquad\qquad\nonumber\\
&\:&+{1\over M_P}\bar{\psi}(\eta_1\not\!n+\eta_2\not\!n\gamma_5)(n\cdot\partial)^2\psi+\textrm{h.c.}~~,
\end{eqnarray}
which must satisfy the following Euler-Lagrange equations:
\begin{equation} \label{lagrange_equation}
{\partial\mathcal{L}\over\partial\varphi}-\partial_{\mu}\bigg({\partial\mathcal{L}\over\partial(\partial_{\mu}\varphi)}\bigg)
+\partial_{\mu}\partial_{\nu}\bigg({\partial\mathcal{L}\over\partial(\partial_{\mu}\partial_{\nu}\varphi)}\bigg)=0~~,
\end{equation}
where $\varphi$ denotes a generic field of the Lagrangian density. For $\varphi=\bar{\psi}$,
Eq. (\ref{lagrange_equation}) leads to the modified Dirac equation:
\begin{equation} \label{dirac_equation_1}
\left[i\not\!\partial-m+{1\over M_P}(\eta_1\not\!n+\eta_2\not\!n\gamma_5)(n\cdot\partial)^2\right]\psi=0~~.
\end{equation}
For $\varphi=\psi$, we obtain, as expected, the hermitian conjugated equation.

In order to obtain the correspondent dispersion relation, we operate Eq. (\ref{dirac_equation_1})
with ($i\not\!\partial+m+\frac{1}{M_P}(\eta_1\not\!n+\\\eta_2\not\!n\gamma_5)(n\cdot\partial)^2$), and after
neglecting terms of order $M_P^{-2}$ we obtain, by using
\begin{eqnarray}\label{commutation_relations}
\{\not\!\partial,\not\!n\}&=&2(n\cdot\partial),\\
\{\not\!\partial,\not\!n\gamma_5\}&=&[\not\!\partial,\not\!n]\gamma_5=-2i\gamma_5\sigma^{\mu\nu}n_{\nu}\partial_{\mu}~~,
\end{eqnarray}
that
\begin{equation} \label{dispersion_relation_2}
\big(\Box+m^2\big)\psi=
{2i\over M_P}\big(\eta_1(n\cdot\partial)^3-i\eta_2\gamma_5\sigma^{\mu\nu}n_{\nu}\partial_{\mu}(n\cdot\partial)^2\big)\psi~.
\end{equation}
\noindent
Finally, in the frame where $n^{\mu}=(1,0,0,0)$, we find the dispersion relation
\begin{equation} \label{dispersion_relation_3}
E^2-|\vec{p}|^2-m^2-{2\over M_P}(\eta_1E^3+i\eta_2\gamma_5\sigma^{0\mu}p_{\mu}E^2)=0~~.
\end{equation}
\noindent
Thus, we conclude that the terms in $\eta_1$ and $\eta_2$ yield two different cubic modifications in the
momentum operator of the fermionic dispersion relation. The first one is similar to the one of Ref. \cite{Myers}, while
the second is a new term identified here for the first time.

\section{The non-relativistic limit and the ${}^9\textrm{Be}^+$ ion energy spectrum}

Let us now determine how the Lorentz-violating terms in Eq. (\ref{dirac_equation_1}) affect
the equations of motion in the non-relativistic limit. For this, we can write the four component spinor $\psi$ in the form
\begin{equation} \label{spinor_1}
\psi=\left(\begin{array}{ccc}
\hat{\varphi}\\
\hat{\chi}
\end{array}\right)~~,
\end{equation}
where $\hat{\varphi}$ and $\hat{\chi}$ are two component spinors.
Eq. (\ref{dirac_equation_1}) can be, thus, written as a system of two equations:
\begin{eqnarray}\label{non_rel_dirac_1a}
i\partial_0\hat{\varphi}+i(\vec{\sigma}\cdot\vec{\nabla})\hat{\chi}-m\hat{\varphi}&=&
-{1\over M_P}\big[A(n\cdot\partial)^2\hat{\varphi}+\nonumber\\
&\:&+B(n\cdot\partial)^2\hat{\chi}\big]~~,
\end{eqnarray}
\begin{eqnarray}\label{non_rel_dirac_1b}
i\partial_0\hat{\chi}+i(\vec{\sigma}\cdot\vec{\nabla})\hat{\varphi}
+m\hat{\chi}&=&-{1\over M_P}\big[A(n\cdot\partial)^2\hat{\chi}+\nonumber\\
&\:&+B(n\cdot\partial)^2\hat{\varphi}\big]~~,
\end{eqnarray}
where $A\equiv\eta_1n_0-\eta_2(\vec{n}\cdot\vec{\sigma})$ and $B\equiv\eta_2n_0-\eta_1(\vec{n}\cdot\vec{\sigma})$.
In the low-energy limit, $E-m \ll m$, and we can separate the slowly and the rapidly time-varying parts of spinors
$\hat{\varphi}$ and $\hat{\chi}$ in the following way:
\begin{equation} \label{spinor_2}
\left(\begin{array}{ccc}
\hat{\varphi}\\
\hat{\chi}
\end{array}\right)=e^{-imt}\left(\begin{array}{ccc}
\varphi\\
\chi
\end{array}\right)~~.
\end{equation}
Hence, Eqs. (\ref{non_rel_dirac_1a}) and (\ref{non_rel_dirac_1b}) become:
\begin{equation}\label{non_rel_dirac_2a}
i\partial_0\varphi+i(\vec{\sigma}\cdot\vec{\nabla})\chi=-{1\over M_P}\big[A(F\varphi)+B(F\chi)\big]~~,
\end{equation}
\begin{equation}\label{non_rel_dirac_2b}
i\partial_0\chi+i(\vec{\sigma}\cdot\vec{\nabla})\varphi+2m\chi=-{1\over M_P}\big[A(F\chi)+B(F\varphi)\big]~~,
\end{equation}
where the operator $F$ is given by
\begin{eqnarray} \label{operator_F}
F&=&{n_0}^2(\partial_0^2-2im\partial_0-m^2)+\nonumber\\
&\:&+2n_0(-im+\partial_0)(\vec{n}\cdot\vec{\nabla})+(\vec{n}\cdot\vec{\nabla})^2~~.
\end{eqnarray}

As we are looking for the leading order terms for Lorentz violation in the non-relativistic
limit, we can neglect terms of order $M_P^{-1}$ in Eq. (\ref{non_rel_dirac_2b}) in order to
obtain a zeroth-order relation between the spinors $\varphi$ and $\chi$. As $\chi$ varies slowly
in time, we can also neglect its time derivative, and so
\begin{equation} \label{spinors_relation}
\chi\approx{-i(\vec{\sigma}\cdot\vec{\nabla})\over 2m}\varphi={(\vec{\sigma}\cdot\vec{p})\over 2m}\varphi\ll\varphi~~.
\end{equation}
Substituting this result into Eq. (\ref{non_rel_dirac_2a}) and neglecting terms of order $m/M_P$
and $m^2/M_P$, as well as those terms which include time derivatives of the spinors that are
supressed by the Planck mass $M_P$, we obtain
\begin{eqnarray} \label{modified_schrodinger}
i\partial_0\varphi&=&{1\over 2m}\nabla^2\varphi-{1\over M_P}\bigg[A(\vec{n}\cdot\vec{\nabla})^2-\nonumber\\
&\:&-{i\over 2m}B(\vec{n}\cdot\vec{\nabla})^2(\vec{\sigma}\cdot\vec{\nabla})\bigg]\varphi~~.
\end{eqnarray}

We have then found the two leading order terms that modify the kynetic term of the
Schr\"odinger equation for the positive energy spinor $\varphi$. In general, these terms will
modify the Hamiltonian for a system of $N$ particles through a Lorentz-violating potential given by:
\begin{eqnarray} \label{perturbative_potential}
\hat{V}&=&-{1\over M_P}\sum_{k=1}^{N}\bigg[\big(\eta_1n_0-\eta_2(\vec{n}\cdot\vec{\sigma})\big)(\vec{n}\cdot\vec{\nabla}_k)^2-\nonumber\\
&\:&-{i\over2m_k}\big(\eta_2n_0-\eta_1(\vec{n}\cdot\vec{\sigma})\big)(\vec{n}\cdot\vec{\nabla}_k)^2(\vec{\sigma}\cdot\vec{\nabla}_k)\bigg]
\end{eqnarray}
where $\vec{\nabla}_k\equiv\partial/\partial\vec{r}_k$, and $\vec{r}_k$, $k=1,\ldots,N$,
is the position vector of the \emph{k-th} particle with mass $m_k$, respectively.

In a 1989 paper, Steven Weinberg proposed the use of a hyperfine transition in the ground
state of the ${}^9\textrm Be^+$ ion to test a non-linear generalization of quantum mechanics
\cite{Weinberg}. Although we are looking for the effects of linear Lorentz-violating operators in the
Schr\"odinger equation, Weinberg's method can be easily adapted to our purposes.

Consider a system in a coherent superposition of two quantum states, $\psi_1$ and $\psi_2$,
whose energy eigenvalues in the absence of Lorentz violation are $E_1$ and $E_2$, respectively.
This system is described by the Hamiltonian $\hat{H}=\hat{H}_0+\hat{V}$, where $\hat{V}$ can be
treated as a perturbative potential compared to the system's Lorentz invariant Hamiltonian
$\hat{H}_0$, as we expect the effects of the Lorentz invariance violation to be small at this
energy scale. To first order in perturbation theory, the Schr\"odinger time-dependent equation
for state $\psi_k$, $k=1,2$, takes the form
\begin{equation} \label{perturbed_schrodinger}
i\hbar{\partial \psi_k\over\partial t}=(E_k+\vev{\hat{V}}_k)\psi_k=\hbar\omega_k\psi_k ~~,
\end{equation}
where $\vev{\hat{V}}_k\equiv\bra{\psi_k}\hat{V}\ket{\psi_k}$, and has the general solution $\psi_k=c_ke^{-i\omega_kt}$.

The constants $c_k$ can be parametrized as $c_1=\sin(\frac{\theta}{2})$ and
$c_2=\cos(\frac{\theta}{2})$ \cite{Bollinger}. The relative phase of the two states,
correspondent to the time dependence of $\psi_2^{\dag}\psi_1$, is given by
\begin{equation} \label{precession_frequency_1}
\omega_p\equiv\omega_1-\omega_2=\omega_0+{\vev{\hat{V}}_1-\vev{\hat{V}}_2\over\hbar}~~,
\end{equation}
where $\omega_0\equiv(E_1-E_2)/\hbar$ is the frequency of the transition between the unperturbed states.
The perturbative terms will, thus, depend on the parameter $\theta$ and, hence, measuring the $\theta$
dependence of $\omega_p$ allows for determining the effects of the Lorentz invariance violation on the system.

A two level system is mathematically equivalent to a spin $1/2$ system which undergoes
precession about an external uniform magnetic field, with $\theta$ being the angle between
the spin and magnetic field vectors and $\omega_p$ the precession frequency. Bollinger \emph{et al.}
have used this idea to search for a $\theta$ dependence of the precession frequency of the hyperfine
transition $\ket{m_I,m_J}=\ket{-\frac{1}{2},\frac{1}{2}}\rightarrow\ket{-\frac{3}{2},\frac{1}{2}}$
in the ground state of the ${}^9\textrm Be^+$ ion \cite{Bollinger}.

In their discussion it has been assumed that the ${}^9\textrm Be^+$ nuclear spin was
decoupled from the valence electron's spin, so that $\psi_1\equiv\ket{-\frac{3}{2},\frac{1}{2}}$
and $\psi_2\equiv\ket{-\frac{1}{2},\frac{1}{2}}$ are pure $\ket{m_I,m_J}$ states.
With this hypothesis, they obtained the upper bound
\begin{equation} \label{bollinger_result}
\bigg|{\omega_p(\theta_B)-\omega_p(\theta_A)\over 2\pi}\bigg|\leq  12.1\ \mathrm{\mu Hz}
\end{equation}
for $\theta_A=1.02$ rad and $\theta_B=2.12$ rad.

To determine how the breaking of the Lorentz symmetry produces a
$\theta$ dependence in $\omega_p$, we have to compute the expectation value
of the perturbative potential on states $\psi_1$ and $\psi_2$. We first point out that
\begin{equation} \label{B_term}
(\vec{n}\cdot\vec{\nabla})^2(\vec{\sigma}\cdot\vec{\nabla})=-in^in^j\sigma^kp^ip^jp^k~~,
\end{equation}
where $p^i$ is the \emph{i-th} component of the vector momentum. As, for bound states like
$\psi_1$ and $\psi_2$, any odd power of the momentum operator has a zero expectation value,
the term in B will not affect the perturbative potential's expectation value \cite{Kostelecky_2}.

The ${}^9\textrm Be^+$ ion is a system composed by three electrons, two of which in a closed
$1s$ shell, and a nucleus with five neutrons and four protons. As, in the considered transition,
$\Delta m_J=0$, we expect the perturbative potential to alter both states energy eigenvalues in
the same way, not affecting the transition frequency. In the ion's nucleus, the
\emph{pairing interaction} induces nucleons to group up into pairs of neutrons and
pairs of protons with zero angular momentum \cite{Wong}. Hence, the ion's nuclear spin is
entirely carried by one of its neutrons.

In this way, $\psi_1$ and $\psi_2$ can be treated as states of a particle with spin
$I=3/2$ and projections on the quantization axis, which is usually defined as the
external magnetic field's direction, $m_I=-3/2$ and $m_I=-1/2$, respectively.
If $\hat{e}_3$ defines the direction of the quantization axis,
\begin{equation} \label{spin_expected_value}
\bra{I,m_I}\sigma^k\ket{I,m_I}=2m_I\delta_{k3}~~,
\end{equation}
and therefore
\begin{eqnarray}\label{potential_expected_values}
\vev{\hat{V}}_1&=&{|c_1|^2\over M_P}[\eta_1n_0+3\eta_2n_z]n^in^j\vev{p^ip^j}_1~~,\\
\vev{\hat{V}}_2&=&{|c_2|^2\over M_P}[\eta_1n_0+\eta_2n_z]n^in^j\vev{p^ip^j}_2~~.
\end{eqnarray}
\noindent
Hence, we find (inserting back the missing $h$ factors)
\begin{eqnarray} \label{precession_frequency_2}
\omega_p(\theta)&=&\omega_0-{n^in^j\vev{p^ip^j}\over M_P\hbar}\big[\eta_1n_0\big(\cos^2(\theta/2)-\nonumber\\
&\:&-\sin^2(\theta/2)\big)+\eta_2n_z\big(\cos^2(\theta/2)-\nonumber\\
&\:&-3\sin^2(\theta/2)\big)\big]~~,
\end{eqnarray}
where we have assumed that $\vev{p^ip^j}\equiv\vev{p^ip^j}_1\approx\vev{p^ip^j}_2$. Finally, we obtain
\begin{equation} \label{precession_frequency_3}
{\omega_p(\theta_B)-\omega_p(\theta_A)\over2\pi}={n^in^j\vev{p^ip^j}\over hM_P}\big[a\eta_1n_0+b\eta_2n_z\big] ~~,
\end{equation}
where the constants $a$ and $b$ are defined as
\begin{eqnarray} \label{constants}
a&\equiv&\cos(\theta_A)-\cos(\theta_B)\simeq1.045~~,\\
b&\equiv&-\cos^2\big(\frac{\theta_B}{2}\big)+3\sin^2\big(\frac{\theta_B}{2}\big)+\nonumber\\
&\:&+\cos^2\big(\frac{\theta_A}{2}\big)-3\sin^2\big(\frac{\theta_A}{2}\big)\simeq 2.091~~.
\end{eqnarray}

As for a neutron, $\vev{p^2}/m_n^2\sim10^{-2}$ \cite{Kostelecky_2},
and assuming that the Lorentz symmetry breaking does not privilege any spatial direction, $n_x=n_y=n_z\equiv n$, we obtain:
\begin{equation} \label{momentum_expected_value}
{n^in^j\vev{p^ip^j}\over hM_P}\sim{9n^2\vev{p^2}\over hM_P}\sim(2\times10^3)n^2\ \mathrm{Hz}~~.
\end{equation}

\section{Results}

As presently there is no way of determining the form of the background four-vector
$n^{\mu}$, we can only estimate bounds on the values of the parameters $\eta_1$ and $\eta_2$.

First, we consider the case where $n^{\mu}$ is a time-like four-vector in some cosmic frame
($n\cdot n=1$). Thus, in the laboratory frame, $n_0\sim 1$ and the typical size of the spatial
components will be of order $n\sim 10^{-3}$ to the relative motion of our galaxy,
the Solar System and the Earth \cite{Myers, Mocioiu}. Hence,
\begin{equation} \label{precession_frequency_4}
{\omega_p(\theta_B)-\omega_p(\theta_A)\over 2\pi}\simeq(2\times 10^{-3}\eta_1+4.5\times 10^{-6}\eta_2)\ \mathrm{Hz}~.
\end{equation}

Using Bollinger \emph{et al.} result Eq. (\ref{bollinger_result}),
we obtain the following upper bounds for the Lorentz-violating parameters:
\begin{equation} \label{parameters_time_like}
|\eta_1|\lesssim6\times10^{-3}\qquad,\qquad |\eta_2|\lesssim3~~,
\end{equation}
where we have assumed $\eta_1(\eta_2)=0$ to obtain a bound for $\eta_2(\eta_1)$.

If $n^{\mu}$ is space-like in some cosmic frame ($n\cdot n$= -1), we will have,
in the laboratory frame, $n_0\sim10^{-3}$ and $n\sim\sqrt{3}/3$. Thus,
\begin{equation} \label{precession_frequency_5}
{\omega_p(\theta_B)-\omega_p(\theta_A)\over 2\pi}\simeq(0.76\eta_1+8.7\times10^2\eta_2)\ \mathrm{Hz}~,
\end{equation}
and, in this case, we obtain the upper bounds
\begin{equation} \label{parameters_space_like}
|\eta_1|\lesssim2\times10^{-5}\qquad,\qquad |\eta_2|\lesssim1\times10^{-8}~~.
\end{equation}
Finally, considering the case where $n^{\mu}$ is a light-like four-vector in the laboratory
frame ($n\cdot n=0$), with $n_0\sim1$ and $n\sim\sqrt{3}/3$, we get
\begin{equation} \label{precession_frequency_6}
{\omega_p(\theta_B)-\omega_p(\theta_A)\over2\pi}\sim(7.5\times10^2\eta_1+8.7\times10^2\eta_2)\ \mathrm{Hz}~,
\end{equation}
and the correspondent upper bounds
\begin{equation} \label{parameters_light_like}
|\eta_1|\lesssim2\times10^{-8}\qquad,\qquad |\eta_2|\lesssim1\times10^{-8} ~~.
\end{equation}

\section{Conclusions}

In this Letter, we have considered the introduction of cubic Lorentz-violating terms in
the fermionic dispersion relation. We have concluded that the two possible Lorentz-violating
parameters yield different terms in the fermionic dispersion relation, both
cubic in the momentum operator components. In the non-relativistic limit, we have
found the two leading order terms altering the equations of motion for fermions and
determined the effect of these terms in the ${}^9\textrm Be^+$ ion's energy spectrum.
Using the method developed
by Weinberg and the experimental result of Bollinger \emph{et al.}, we have obtained new bounds on the
value of the parameters $\eta_1$ and $\eta_2$ for neutrons. We have determined $|\eta_1|\lesssim6\times10^{-3}$
and $|\eta_2|\lesssim3$ for a time-like background Lorentz-violating four-vector, $|\eta_1|\lesssim2\times10^{-5}$
and $|\eta_2|\lesssim1\times10^{-8}$ for a space-like four-vector, and $|\eta_1|\lesssim2\times10^{-8}$
and $|\eta_2|\lesssim1\times10^{-8}$ for a light-like four-vector.

The values of the Lorentz-violating parameters $\eta_1$ and $\eta_2$ are, hence,
highly dependent on the form of the background four-vector, particularly on its
spatial components. Bollinger \emph{et al.} experimental results are consistent with high values
for these parameters, especially $|\eta_2|$, in the case where the spatial components of
$n^{\mu}$ have small values in the laboratory frame, $n\sim10^{-3}$ (a time-like
background four-vector). On the other hand, this experiment yields quite strong constraints when
$n\sim1$ (a space-like or light-like background four-vector).

In general, $n^{\mu}$ may have different spatial components in the laboratory frame due to the motion of the Earth with respect to the cosmic frame where the background four-vector has a simple form. If some of these components are further suppressed, the upper bounds on the values of the Lorentz-violating parameters will be larger than the ones presented above.

In any case, it is somewhat striking that 15 yr-old experiments like the one considered in
this Letter can lead to relevant upper bounds for these parameters and shed some light
on the physics of very high energy scales.

\vskip 0.2cm

\centerline{\bf {Acknowledgments}}

\vskip 0.2cm

\noindent The authors would like to thank David Mattingly for his useful comments and suggestions.

\vfill

redpajama_set_name: RedPajamaArXiv


Collect hundreds of warriors from 16 factions. Assemble balanced teams of Sorcerers, Skinwalkers, Undead, Knights, Elves, and more to defeat your enemies – then recruit them to your side!
• RAID: Shadow Legends is available in English.


Another film by Lars von Trier done very much in the flavor of his previous picture, Nymphomaniac. It is, in my opinion, much less uneven and messy, but still too undisciplined to feel fully realized and satisfying. It ranges from brilliant to dubious constantly, while Nymphomaniac, despite also containing brilliant segments, sinks to cringe-worthy more than once. Similarly to Nymphomaniac, where our main character is exploring a central part of her personality, in the case of that film her sexuality, by confessing her history to another character, all intertwined with commentary from philosophy and religion, here it's a murderer confessing the central part of his personality, his killer nature, to another character, all again mixed with dialogues on philosophy, art, etc. So in the style and approach the films are quite similar. Maybe even more that I would prefer, because Nymphomaniac didn't rub well off me, as the premise took precedence over proper story development. The story in The House That Jack Built again is told in episodic manner, here even more so with the narrative being split into separate "incidents", and it often feels too artificial, staged, and improbable. I'm not sure how much this was premeditated and intentional. As I already mentioned, it feels too often quite implausible and ridiculous. It makes you question director's true intentions with this approach. Is he toying with the nature of the film medium, with audience expectations, or is simply using this narrative instrument to make a statement on art and (his own) filmmaking? It's hard to say. The approach however, has a quite potent result, which is in my opinion accidental. It tapped on that feeling of reality being stranger than fiction, and that impression of life being utterly indifferent to people doing evil things. But how the movie was executed, it makes you feel that this aspect of the film was a mere accident of the director's approach, and not a fully realized vision. As previously noted, the script veers into absurd one too many times for this sense of reality being stranger than fiction to have a chance to establish a footing, or simply, too feel convincing and compelling. As maybe it should have been. From the technical standpoint, I've found the usage of shaky cam very innapropriate for the story being potrayed and rather detrimental to the enjoyability of the film. But missed opportunities in the script feel more jarring to me, to be terribly bothered with this specific directorial choice. It is definitely a more satisfying film than Nymphomaniac, but again feels too sketchy, too undisciplined, it's hard to embrace it. Despite being a fan of self-referential, meta filmmaking, I think this specific approach does this film a disservice. A more subtle, distanced angle, would do this story, keeping the same structure, wonders. It just so obvious that von Trier has the chops for a much more compelling film. You can sense is so many times during the course of this film, that you feel frustrated witnessing how he opts for another direction repeatedly. Lars von Trier is a marvelous director, a talented visionary willing to tap into uncharted territories, and because of his prestige he is able to secure solid budgets for his film projects, as well as A listers probably doing the work for a discount, just to be in a Lars von Trier film. In that sense, his every new project is an exciting event for any film buff. But after these last two endeavors, I'm personally starting to lose interest. I'm simply convinced that discipline is important in art, and von Trier, at the current stage of his artistic career, chooses to blatantly disregard it, with weak results. Worth being seen, but don't expect to be very impressed.


"Stress is the killer" they say. Stress wreaks havoc on our health. If not addressed, it will affect your body's ability to regulate inflammation, promoting the development of many diseases such as heart disease, asthma, digestive and skin disorders. In addition, prolonged stress has been shown to lower our immunity and makes us vulnerable to frequent infections, allergies and fatigue to name a few.
So when you hear "stress is the killer" the way I see it is that stress may not kill you abruptly but it will sure kill your "joie de vivre" and ability to engage in life fully, bit by bit. And since we all want to live happy and productive lives (right!?), we've got to get to the bottom of this.
From a holistic medicine standpoint we can only eliminate a problem for good if we know where it originates from.
Yet the root cause of stress is seldom talked about. Most of us think of stress as feeling overwhelmed or overworked and as a result suffering from muscle pain, headaches or insomnia. For that I could suggest you breathe deeply, get regular massages or learn to prioritize, but I won't. I won't because in my opinion this would not address the root cause of stress, only its symptoms, merely giving you short-term benefits.
Now, as much as I believe stress is at the source of most chronic ailments, I believe it is within everyone's reach to live stress-free lives, regardless of circumstances, once we understand where stress comes from and address THAT. So what could this one and only cause of stress possibly be???
Resistance to what happens. Resistance to what is. Resistance to life!
How much control do you really have over what happens in your life? As far as I'm concerned the only thing I know for sure is that the sun's going to rise tomorrow morning! Other than that, thinking we can control events and people in our lives and attempting to do so takes up a ton of energy and is bound to make us feel overwhelmed, discontent and depleted. This is a major illusion human beings hold, something all spiritual traditions tell us is impossible, and yet something that we foolishly believe we can manage: to control Life.
We can not change what happens when it's already happening but we can absolutely alter our perception of the events in our lives. The choice is ours at all times. We can either say yes to life no matter what, an attitude that generates harmony and a sense of being "in the flow". Or we can say no, this should not be, can't be, must no be. When we do, life becomes a struggle and peace is nowhere to be found.
Ah the mind! Isn't it where it all begins anyway? Imagine this situation (you may have been in it many times before). You are waiting in line at the supermarket. The line is very long and the one open cashier very slow. This lovely lady is enjoying her work immensely, chatting with each customer and having a good time. Just not working very fast. And so you observe the customers ahead of you. A gentleman is absorbed in a magazine, hardly noticing whether the line is moving or not. He couldn't be bothered. Behind this man, a couple friends are having a lively exchange, smiling and laughing, using this time to catch up on each other's lives.
It is how we perceive life events that turns them into a "problem" or not, as seen in the above story. Resistance causes us to clench and hold our breaths. Acceptance invites an opening of the heart and relaxation. Which one do you choose?
Acceptance of "what is" is the only solid foundation for stress free living. How can you get to that place, able to embrace each and every moment as it comes? Well, there's actually no "getting there", no process. All it takes is a shift in attitude and it can happen in a second. Yes, radical acceptance is an attitude. That said, one practice that has helped me enormously over the years is meditation. Through meditation I came to realize I exist apart from my thoughts and feelings, beyond my likes and dislikes, while simultaneously getting greater access to a part of me that is ever calm, contented and unaffected. The natural result of this has been a much easier time accepting myself as I am, others as they are, life as it is. From that state I can approach each moment with equanimity, and choose acceptance over resistance.
Now I'm curious to know, how do you handle the circumstances in your life? Do you find yourself saying No! or Yes! more often? Can you see how that relates to your current state of health and stress level? Please share in the comments below.
Older PostTo Juice or Not To Juice?


text:
va ser un lluitador eslovac, especialista en lluita grecoromana, que va competir sota bandera txecoslovaca durant la dècada de 1950.

El 1948 va prendre part en els Jocs Olímpics de Hèlsinki, on guanyà la medalla de bronze en la competició del pes lleuger del programa de lluita grecoromana.

Referències

Lluitadors europeus
Medallistes als Jocs Olímpics d'Estiu de 1952
Esportistes txecoslovacs
Morts a Košice
Esportistes de Košice


text:
Trade Talk & Rumors
Reporter Inbox
On The Move presented by Penske
MLB Press Releases
1st pick Baz celebrates 18th b-day by signing
Assigned to Rookie-level Pirates, Texas prep righty says playing pro ball 'means everything'
By Adam Berry
PITTSBURGH -- A day before turning 18, Shane Baz officially began the professional career he's dreamed of since he was 3 years old."I might have the best 18th birthday of all time," Baz said. "I don't know what more anyone could ask for than something like this.":: 2017 MLB Draft
PITTSBURGH -- A day before turning 18, Shane Baz officially began the professional career he's dreamed of since he was 3 years old.
"I might have the best 18th birthday of all time," Baz said. "I don't know what more anyone could ask for than something like this."
:: 2017 MLB Draft coverage ::
Less than a week after calling his name with the 12th overall pick in the MLB Draft, the Pirates officially signed Baz on Friday afternoon. Baz and his family made their first trip to Pittsburgh and toured the city, with plans to celebrate Baz's signing -- and his 18th birthday -- before the right-hander heads south to start pitching for the Rookie-level Gulf Coast League Pirates.
The Pirates introduced Baz during a news conference at PNC Park. His family was in attendance: father Raj, mother Tammy and sister Mariah. For Tammy, the moment brought to mind images of a much younger boy than the one who dominated high school hitters and shot up Draft boards.
"Before he could walk, he could throw a baseball straight to me," Tammy said. "He had a little toy baseball. He's always been that way."
Baz was drafted in the first round out of Concordia Lutheran (Texas) High School. He agreed to a $4.1 million signing bonus, according to an industry source, more than the $4,032,000 assigned to the 12th overall pick and enough to convince Baz to begin his pro career and break his commitment to Texas Christian University.
"Education is very important, but the bottom line is it's his life and he's got to make his own decisions," Raj said. "We're going to pick him up if he stumbles, no matter what happens. He kind of took it down to the wire. He wanted to kind of weigh all his options. This was just an amazing opportunity with a great organization."
The entire Baz family spoke glowingly about their initial dealings with the Pirates, from area scouting supervisor Wayne Mathis to general manager Neal Huntington. Baz was particularly impressed by Pittsburgh's development system. His parents live a short drive away from The Woodlands, Texas, hometown of Jameson Taillon, the last high school pitcher the Pirates took with their first Draft pick and now a key piece of their rotation.
"They have really proved their development to be as good as anybody's," Baz said.
Soon, Baz will start the climb back to PNC Park. The 6-foot-3 right-hander will begin on the back fields of the Pirate City complex in Bradenton, Fla., and work through the Minor League system against the best hitters he's ever faced.
RETWEET THIS now for a chance to win @thewizardofbaz's FIRST signed baseball! #LetsGoBucs pic.twitter.com/jfq803rfyj
— Pirates (@Pirates) June 16, 2017
"From a baseball traits standpoint, he checked a lot of boxes for us. But as importantly, we want to understand the young man," Huntington said. "There's going to be some long, hard days, and it's not going to be easy. But we believe we can help him through that, and we believe he's got a great foundation that's been put in place by a wonderful family and by the hard work that he's put in."
Before the work begins, however, Baz has a birthday to celebrate. He'll be back Saturday night to watch the Pirates and Cubs, and he plans to spend the rest of the day with his family, looking for good restaurants and exploring the city he one day hopes to call home.
"It's already got my heart. I love it," Baz said. "Obviously this is a dream come true. I've wanted to play professional baseball since I was 3 or 4 years old. To have this dream come true, it means everything."
Adam Berry has covered the Pirates for MLB.com since 2015. Follow him on Twitter and Facebook, read his blog and listen to his podcast.


text:
The 2018 Louisiana Tech Bulldogs football team represented Louisiana Tech University in the 2018 NCAA Division I FBS football season. The Bulldogs played their home games at the Joe Aillet Stadium in Ruston, Louisiana and competed in the West Division of Conference USA (C-USA). They were led by sixth-year head coach Skip Holtz. They finished the season 8–5, 5–3 in C-USA play to finish in a three-way tie for second place in the West Division. They were invited to the Hawaii Bowl where they defeated Hawaii.

Previous season
The Bulldogs finished the 2017 season 7–6, 4–4 in C-USA play to finish in fourth place in the West Division. They were invited to the Frisco Bowl where they defeated SMU.

Preseason

Award watch lists
Listed in the order that they were released

Preseason All-Conference USA team
Conference USA released their preseason all-Conference USA team on July 16, 2018, with the Bulldogs having four players selected.

Offense

O'Shea Dugas – OL

Teddy Veal – WR

Defense

Jaylon Ferguson – DL

Amik Robertson – DB

Preseason media poll
Conference USA released their preseason media poll on July 17, 2018, with the Bulldogs predicted to finish in second place in the West Division.

Roster

Schedule

Schedule Source:

Radio
Radio coverage for all games will be broadcast statewide on the Louisiana Tech Sports Network by Learfield Sports. The radio announcers are Dave Nitz with play-by-play, Teddy Allen with color commentary, and Nick Brown with sideline reports.

Game summaries

at South Alabama

Southern

at LSU

at North Texas

UAB

at UTSA

UTEP

at Florida Atlantic

at Mississippi State

Rice

at Southern Miss

Western Kentucky

vs. Hawaii (Hawaii Bowl)

Players drafted into the NFL

References

Louisiana Tech
Louisiana Tech Bulldogs football seasons
Hawaii Bowl champion seasons
Louisiana Tech Bulldogs football


Four Rejects got together for a WWI battle last Sunday, using Posties 6mm figures.
didn't seem to matter who won.
Postie reffed the game I played the French, Richard and Surj were the Germans.
in front of the town, that could be a problem for both sides. The little farm building must be worth something too?
Hmm? Not many points here...I think?
Now there's a few points here?
First turn was a mad scramble to the town. I won first turn, so I moved and fired first.
on the far road? Hmm? What are they up to???
ripe territory for machine guns!!
My artillery was battering the poor Germans.
Looks like we'll both get one building each.
Each small building can hold either 1 Company of infantry (1 stand) or 1 Machine gun.
The larger buildings can hold one of each.
Richard will get the other side.
Richard still didn't move in the left centre, I moved up to the farm house.
I got on the hill first, But could I hold it?
I'm in! With a stand of infantry.
which results in a courage test for the Germans, see the red marker.
Bloody hell, its pretty bloody on top of the hill. Richard targets me with his artillery.
Well I've gained the ground, but Richard isn't budging from the road.
They got another artillery piece I get a wagon and tent!!!
Richard's still refusing to move his side forward. I'm happy to stay my side too.
building on Surj's side. While he's now pushing for the hill.
I get my commander too close to my infantry. He has to test for casualties. Luckily I threw well!
Surj moved back to form a line to get maximum fire to the hill, so I moved my troops back off.
Back down on the right, both sides still hold their end of the town.
Not sure who's gonna break first?
I'll gain a point or two for my endevours?
He charges the infantry on the left, the Church and the building in the middle.
dice roll. Richard needed 8's and up on a D10, were I only needed 6's.
Then to make matters worse, one of the units fails its courage test and moves back another 4 inches.
with artillery then some casualties may go to the Germans instead of me.
Surj looked week in the open ground now, so I pushed forward to support the attack on the hill.
Postie ended the game prompt at 4.30, as he had planned all along.
He added the points up from the map above giving the French an 10-8 point victory.
If I hadn't moved back onto the hill and gained an extra 3 points the Germans would have won 8-7!!
And most of the building we fought over didn't even count as points either!!
He's a sneaky bugger that Postie!
Quite a thrilling game. My big table games have gone, for now. Looks marvellous.
Glad you liked the report Peter.
So when you coming over for a game or 2 then?
That's a clever way to set up the game. Although frustrating trying to get something that's not worth anything in the end. That was sneaky!
As Fran says, "cracking report"! Looks like a fun and challenging match. Good setup by Postie!
Lovely job, nice to see 6mm get so much space.
Yeh, it was a very open game, in more ways than one!
It was great looking at the whole table, but then just concentrating on a few units here and there, each with their own little battle. Very WWI!
Yep. There were really 4 battles going on at the same time.
It was an excellent game, well fought by all involved. Good report Ray. Postie really ought to publish these rules.
Too right he should, Ricardo. We may have to take a group lead on this one.
Long live " extra 3 points", great looking game, and glad to see a French victory...Close result but victory anyway!
So glad I moved the troops back up the hill.
Excellent report--fun to follow along (and well done on the victory). Early WWI is an under represented field in gaming, but I always thought was worth exploring more: Franco Prussian on steroids.
Indeed, Good artillery, Machine guns and cavalry! A recipe for disaster!
Very cool scenario. I've always wanted to game WWI and posts like this only increase the desire.
The scenario worked really well with Posties excellent rules.
What a great looing gam and it did sound like there was a lot of toing anf froing throughout.
Must have been a good game to play in and for once it seems Von Postie didn't stitch you up!
He probably did try his usual Joe, but it didn't work this time.
Very nice 6mm kit and scenery.
That's a great looking game Ray.
Terrific piece, that home made table takes me back a few years.
Most of the terrain we use is the reusable kind.
were the battle damages paid in beer?
Looks like I missed a great game.
You did you fool. How was Romford market?? Haha!


text:
When It Comes to Pandemics, Don't Panic —Plan for It
Policies can keep workers healthy and business running, but employers should avoid legal risks
Jessica Folker
In the two months since COVID-19 first appeared in central China, the novel coronavirus has made more than 100,000 ill, rattled markets and led to a run on face masks.
Now that the virus has spread to every continent except Antarctica, U.S. employers are taking a hard look at their strategies for dealing with the outbreak.
According to Colorado-based employment attorneys and HR experts, lots of companies already have at least a rudimentary plan to keep workers healthy and business chugging along. But smaller businesses, especially, might be wondering where to start.
Holland & Hart partner Steve Gutierrez said it's common for mid-size and large companies to have some form of pandemic plan, especially if they have broad exposure to the public or employees who travel. They're typically a written set of objectives on how to respond, he added, and they're often based on guidance from the Centers for Disease Control and local health departments.
Elizabeth Chilcoat, an associate at Sherman & Howard, said, "My sense is that the larger the business, or the more likely that the business is to deal with a vulnerable population, the more likely they are to have done comprehensive planning." That can include planning for various illnesses, whether or not they rise to the level of a pandemic.
The components of a plan tend to fall into three categories, according to Chilcoat. The first is what to do if employees get sick, including whether to quarantine and how to notify workers of their risk. A second is how to keep the business running if employees can't come in to work. And the third part "involves some amount of risk assessment and determining when you're going to put the first two pieces into play," she said.
THE BUSINESS OF STAYING HOME
If public health authorities impose quarantines, showing up to the office every day won't be an option. Businesses might also decide to shut down voluntarily if they perceive a risk or employees have tested positive for an illness.
Technology has made it easy for office workers to do their jobs remotely. But businesses that plan to survive an outbreak through telecommuting might want to review their cybersecurity practices, said Bill Berger of L2S Legal. He cited a recent spate of "spear-phishing" attacks, which spoof the e-mail of a trusted sender and ask for sensitive information, as a threat that could be amplified if people are working remotely.
While many employees can work from home, some workers wouldn't be able to telecommute.
Employers would need to figure out what to do with non-exempt hourly staff, especially those whose work can't be done off-site. If these employees have to stay home for a prolonged period of time, Gutierrez said, it could result in a temporary layoff, which might entitle them to benefits.
Adam McCoy, president of the Mile High Society for Human Resource Management (SHRM), said that wage and hour issues could arise for employers trying to manage non-exempt staff remotely. "What policies and procedures do you need to put into place in terms of making sure they get their breaks and their lunches, and they don't work overtime without your permission?" McCoy said.
Then there are the employees who might insist on staying home — even if no quarantine is in place — because they're worried about getting infected.
"Normally, refusal to work isn't protected activity under the Occupational Safety and Health Act," said Sherman & Howard member Patrick Miller. "But there's a narrow exception for employees who have a reasonable belief of serious bodily injury or death that can't be remedied through the normal recourse of going to OSHA."
Miller said that exception probably wouldn't apply in a workplace without confirmed cases of an illness, but in a situation where multiple employees have tested positive, refusal to come to work could be protected activity and employers would be prohibited from terminating those who stay home.
Identifying essential and non-essential operations is crucial if a company needs to scale back temporarily, said Gutierrez. For example, he said, at a law firm, financial services would be essential to ensure payments and payroll, while the mailroom might be able to operate with a skeleton crew.
In the most severe situations, companies might have to consider what happens if key managers are never able to return to work due to death or other circumstances. "Part of any good plan is going to deal with your leadership and the successors that are necessary within the leadership to keep the operation moving forward," Gutierrez said.
THE PITFALLS OF PLANNING
The general consensus among the experts is that while having a plan of action for pandemics is good, panicking isn't. Poorly thought out policies could expose employers to legal risks.
Among the most-cited risks in the case of COVID-19, first detected in China, was that of enacting policies that discriminate on the basis of race or national origin. Employers need to be careful not to assume that people of Asian heritage or national origin are more likely to have the virus, said Chilcoat.
Other laws pandemic plans should comply with include the Americans with Disabilities Act, which prohibits employers from communicating confidential health information about employees, and the Family and Medical Leave Act, according to Chilcoat.
"They need to be concerned about the FMLA, which provides for job-protected leave for qualified employees of covered employers," she said, adding that whether an illness is serious enough to trigger that leave depends on each individual case.
Companies will also want to watch how they engage with independent contractors. "What if the contractor has an employee who is sick? Can that person come in?" Chilcoat said.
"Employers need to be careful not to become a joint employer while they're having those conversations," she added. "So, they need to be careful not to assume management of their independent contractors' employees."
According to Miller, there are no specific OSHA standards to address the coronavirus. "However, employers… should be looking at their policies and procedures with respect to personal protective equipment and their respirator-use program," he said. Depending on how widespread the virus becomes, COVID-19 could lead to a situation where office workers would need to be evaluated and fitted with protective equipment, he said.
For employers who are just starting to think about their pandemic contingency plans, or those looking to revamp their policies in light of the latest outbreak, there's no need to reinvent the wheel. McCoy noted that SHRM and other organizations have templates and other resources to help employers come up with a business continuity plan or pandemic response.
Chilcoat said the CDC has issued interim guidance on how to conduct a COVID-19 risk assessment. OSHA's website also has a dedicated page to information and directives related to the novel coronavirus.
— Jessica Folker
L2S Legal
Sherman & Howard
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Live Music Line Up airs at the bottom of every hour on Radio Sausalito.
See the current local listings NOW on our LOCAL>LIVE MUSIC LINE UP page.
Host Mari Mack. Photo by Arne Frager.
Hosted by Mari Mack, Live Music Line Up covers the local music scene in Sausalito and Marin — what's playing today, tonight, and in the next few days. The listings are continuously updated by our partner, San Rafael-based Local Music Vibe, and can be seen on our LOCAL>LIVE MUSIC LINE UP page.
Mari Mack is a singer based in the San Francisco Bay Area by way of Lodi, New Jersey. Mari fronts the Livin' Like Kings soul and blues band (marimackmusic.com). And her 2010 CD, Can't Go Back, lays down some serious R&B, soul and blues (marimack.bandcamp.com).
Music is in her blood – Mari's birth name is "Tamburo," which means drum. Singing as a toddler, she was indoctrinated with the love of jazz and big bands by her father. Older siblings introduced her to blues, rock and R&B. And by age 18 she was paying her dues, singing in clubs all over the New York area.
With her finger on the pulse of Marin's music scene, Mari guides you to the hot spots with Live Music Line Up.