As described in an earlier post, Gaussian process models are a fast, flexible tool for making predictions. They're relatively easy to program if you happen to know the parameters of your covariance function/kernel, but what if you want to estimate them from the data? There are several methods available, but my favorite so far is STAN. True, it requires programming the kernel by hand, but I actually find this easier to understand than trying to parse out the kernel functions from, say, scikit-learn.
STAN can fit GP models quickly, but there are certain tricks you can do that make it lightning fast and accurate. I've had trouble getting scikit to converge on a stable/accurate solution, but STAN does this with no problem. Plus, the Hamiltonian Monte-Carlo sampler is very quick for GPs (see the STAN User Manual for more).
Now, let's develop the STAN model. Here's the boilerplate model for a GP using a squared-exponential model (taken right from the STAN manual).
This model fits the parameters of the kernel. On my computer, it does so in about 0.15 seconds total (1000 iterations).
Now that we know what the hyperparameters are, we'd like to predict new values, but we also want to do so incorporating full uncertainty in the hyperparameters. The way the STAN manual says to go about this is to make a second vector containing the locations you'd like to predict, paste those together to the X values you have, make a vector of prediction points as parameters, paste those to the Y values you have, and feed those into the multivariate normal distribution as one big mush. The issue here is that the covariance matrix, Sigma, gets very large very fast. Large covariance matrices take a while to invert in the multivariate probability density, and so slows down the sampler.
This is extremely slow, taking about 81 seconds on my computer (up from less than one second). Taking the cholesky decompose of Sigma an using multi_normal_cholesky didn't speed things up, either.
Note: I have no idea why, but upping the iterations from 1000 to 5000 causes the analytical solution model to freeze my computer. I can't quite figure that one out.
The Rasmmussen and Williams textbook says that you add noise to the diagonal of the covariance matrix, which in this case is Sigma.
This is basically the same thing because along the diagonals, cov_exp_quad reduces to s_f, so the diagonals are s_f + s_n.
How do I see the "best" mean and sigma?
and now each column contains all posteriors estimates of the parameters. You can get the 'best' parameters by taking the mean or the median, generate confidence intervals, SEs, and basically whatever else you need to do.
you'll get a numpy array of the same format (column for each parameter). I just prefer DataFrames because generating summaries of parameters is easier and the column names help me remember what is what.


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Visualising the sky better at Jersey Airport's remote air traffic control tower
Posted: 5 May 2020 | Peter Moore - Jersey Airport | No comments yet
With air traffic control on the cusp of a digital revolution involving remote towers, Jersey Airport's Air Traffic Controller, Peter Moore, explains how the airport overcame some of the challenges involved, including the use of eye-tracking technology.
Controlling aircraft from an airport tower has, for decades, been a hands-on job, with controllers relying on excellent vision, powerful binoculars and high vantage points to assist them in their role of guiding planes to land and take off.
But advanced technology and the development of remote towers mean that controllers of the future could carry out the role from afar, using high‑definition computer screens and cameras. Ports of Jersey has recently made a considerable investment in developing one of the UK's first remote towers – with the facility based just a few hundred metres from the airport's 39m tower.
With the remote tower designed to act as a contingency for Jersey Airport – in the event of equipment failure in the existing site or an evacuation – a decision was made to replicate all of the technology and equipment used in the conventional tower so that controllers would be in familiar surroundings.
As such, the only real difference for controllers was the view. From the outset, for the project to be a success, it had to ensure that it was at least as safe as the existing tower and that controllers were happy that their current view – which allows them to see landmarks, such as lighthouses, as far as 46km in the distance – could be digitally recreated.
This was achieved via 11 fixed cameras, providing a 240-degree panoramic picture, and two pan-tilt zoom cameras. They produce a faithful recreation of the view from the tower – a digital image that is stitched together across three screens in the remote tower. The stitching allows different camera views to be displayed on a single screen which continuously blends light levels, contrast and focus to create one seamless panoramic picture.
It is not a replicated view, but a different view
With the ability to see aircraft in bad visibility, the controllers have a view better than the original"
The project focused on creating the optimal view. Initially, we thought we had to reproduce exactly what controllers could see out of the window but, now, our thinking is that we have enhanced it. For example, not only do we have digital zoom on the 'out the window' view – we have two pan-tilt zoom cameras that let you focus on areas of the aerodrome, but also track aircraft using the target label. That kind of technology, together with the ability to add infrared cameras that enable night vision and the ability to see aircraft in bad visibility, means that controllers have an enhanced view that is better than the original.
Ensuring optimal operation
Before choosing the screens that would be used for the remote tower, a study was carried out by Ports of Jersey to investigate human‑computer interaction with the 'out of window' view. The services of Cranfield University, specifically, the human factors experts, were engaged to help with this study.
A group of 15 air traffic controllers took part in the experiment, which involved wearing eye-tracking devices whilst responding to instructions to track various objects on screen. This captured objective eye movement metrics that measured controllers' response times while searching for targets.
The most surprising result of the case study was the eventual recommended screen size. While everyone originally thought that bigger would be better, the test results showed that, though our subjective preference was for larger screens, smaller screens were actually objectively better. It meant that controllers were quicker at finding targets and that their fixation was more focused. We had two sets of screens and ran tests where the subject had to identify targets. The results of the eye tracking were conclusive – people found the targets quickest on 43" screens.
We worked out the optimum distance for the screens from the controllers' position, which ensures that they have the best possible 'view' of the airfield. The screens are also positioned so that all of them are in the controller's field of vision – despite it being a 240-degree vista. This means that they don't have to turn their heads as much, making their response times quicker.
Learning how to interact with this new perception
Our controllers originally thought that they would be sitting in the middle of a 3D replica tower, because that's what old simulators are like and it is what they are used to, having trained on them in the past.
However, the way that the picture stitching works so successfully, is that an acceptable view of the runway and surrounding areas can be achieved on the screens in front of them, without needing to turn heads. All of the feedback from the controllers is that they are very happy with the set‑up and that they find it easy to use and intuitive.
As part of the study, other tests were conducted, including HET, NASA TLX, SAR, SUS and HRV. HET (Human Error Template) measured human performance, and NASA TLX measured the ATCOs perceived workload in the remote tower versus the conventional tower. SART is a Situational Awareness Rating Test, whereby operators rate a system desirability by practical experience, which resulted in no significant difference from the conventional tower. SUS (System Usability Scale) showed a 77 per cent 'good' or 'excellent' rating. HRV (Heart Rate Variability) measured physical parameters by comparing a controller's heart rate whilst controlling live traffic compared to an at-rest period. All of these studies gave very favourable results and were submitted as evidence for EASA certification.
Jersey Air Traffic Control has also carried out a simulated tower evacuation as part of its requirements laid out by the European Aviation Safety Agency. The evacuation exercise involved a series of simulated laser attacks on the tower and saw controllers transported by the Airport Fire Service to the nearby contingency tower, where they seamlessly picked up control of the existing traffic.
While there are many potential opportunities in the future involving our remote tower, such as offering training or even operational facilities for other airports, its primary function is to serve as a back-up for Jersey Airport if we are forced to evacuate our existing building because of an emergency or equipment failure.
In that respect, it has been a huge success. Our rigorous 'live training' of controllers to operate in the remote facility has shown that it is a viable alternative and a valid contingency – something that we hope gives reassurance to Jersey's 100,000-strong population, that their main route in and out of the island could remain operational in the event of an emergency.
Peter Moore has been an Air Traffic Controller at Jersey Airport for 32 years. As Air Navigation Services Business Development Manager, he has been heavily involved in Jersey's remote tower project for the last three years – specifically overseeing the technological development of the system from an ATC perspective.
Air traffic control/management (ATC/ATM), Airside operations, New technologies, Runways and pavements, Safety, Workforce
Jersey Airport (JER)
Cranfield University, European Aviation Safety Agency (EASA), Ports of Jersey
By Peter Moore - Jersey Airport
Planning as a service – a sensible approach to save costs at your airport?
By INFORM
New education programme launched at Billy Bishop Toronto City Airport to disrupt human trafficking
The airport as a destination: Bahrain International Airport
By Holly Miles, Salem AlMutawa
Exclusive voxpop with Joyce Carter, YHZ
By Joyce Carter, Lily Mae Pacey (International Airport Review)

redpajama_set_name: RedPajamaCommonCrawl


Dynavox VR400 HiFi Hybrid Amplifier with Bluetooth (Free Local Delivery with SF Express) - HiFi Gear offer high quality audio equipments at affordable price, HiFi accessory does not mean expensive anymore.
The new hybrid amplifier DynaVox VR-400 is a new product from Dynavox , this model is equipped for HiFi pleasure at a high level at a low price. Thanks to compact dimensions, large equipment package, fine design and of course great sound. In addition to 2 RCA inputs for tuner, CD or DVD , The VR-400 also comes with output for external subwoofer as well as headphones. The BT signal reception as well as the built-in USB audio player (supports MP3, WAV, APE, FLAC) complete the package. There are also the two visible tubes, which process the signal input and give a light tube-like warmth to the sound and a sleek aluminum enclosure. Banana jacks with additional screw / clamp fixing for cable without plug.


text:
Q: Using Multiscreen blank with autohotkeys I am finding a lot of forms saying to use autohotkeys in order to use multiscreen blank but there is no explanation for someone who does not know how to use autohotkeys.
I want to be able to toggle my second monitor on/off with the multiscreen blank. I see this:
multiscreenblank2 /toggle bounds 3440,0,1920,1080
in order to blank that but I am confused about how to implement this.

redpajama_set_name: RedPajamaStackExchange


Sizwe medical scheme started in 1978 and has provided medical aid cover to thousands of members ever since.Over the years, Sizwe medical scheme has demonstrated to be in touch with South Africans' need in terms of medical cover.
The reason why people take out medical aids like Discovery Health, Bonitas medical aid, GEMS medical aid and Liberty medical, is to have peace of mind if they should need it. Life is unpredictable and you need to make provision for unforeseen circumstances. If you should become involved in an accident of need an operation for whatever reason, you do not want to be concern about payment during that time.
The Medical Schemes Act, 1998 is a legislative guide to which medical schemes such as Sizwe medical fund and Momentum Health have to comply. This Act states that no medical aid have the right to discriminate against individuals regarding their age, gender and health status. The main objective of this Act is to protect the interest of members of a medical aid. The Council for Medical Schemes was created in terms of the Act.
Sizwe medical scheme is committed in presenting a product that is affordable but is still able to give a comprehensive cover to members. Sizwe medical fund, established by a group of doctors, saw the need in the market for a medical aid fund that is able to provide more medical cover for less. However, Sizwe medical fund, just like Discovery medical aid and Fedhealth medical aid, is an open medical fund so anyone may become a member.
Sizwe medical fund is administrated by Sechaba Medical Solutions (Pty.) Limited and offers a range of products that is suited for people with a very low-income or executives that earns a good salary and wants comprehensive medical cover. This is the reason why Sizwe medical fund has become one of the largest open medical aids in South Africa and the most preferred cover used by companies.


text:
Podcast with Dan Kuschell Shows You How to Grow Your Leads, Sales, and Profits So You Can Have a Bigger Impact, Reach and Contribution
Dan Kuschell and Growth to Freedom Show You How to Grow Your Leads, Sales, and Profits So You Can Have a Bigger Impact, Reach and Contribution
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Get your excited pants on ladies, this is a good one! I'll admit, I didn't think a whole lot about it when it crossed my desk, but once I used it? Colour me impressed! Read on and find out why.
Let's not tip-toe around it, this is essentially Mary Kay's version of the Clarisonic Mia, but at a much more wallet friendly price point. Because I am used to using a Clarisonic Mia, I didn't really think I'd end up loving this, but it is pretty amazing!
In terms of similarities, Skinvigorate is lighter in hand than a Clarisonic, and has two speeds- which the Mia does not. It's waterproof, so you can still take this in the shower, and gives the same gentle, deep cleanse. Unlike the Mia, Mary Kay's version requires two AA batteries- which were included, how nice is that?- but that could be a plus if you travel a lot as it means you are less likely to loose the charger. I found the bottom cap (where the batteries are inserted) to be quite difficult to remove. I'm hopping it's just because it's new.
The brush heads are super soft, but not so soft that they don't get the job done. They feel gentle on skin but when used with the brush, leave skin feeling deeply cleansed and happy. Super happy! I love that this has two speeds allowing you to go extra gentle if your skin needs it. Since the brushes are quite soft, and there is the lower speed, I can see those with very sensitive skin preferring this to the Mia. The fact that the replacement heads come in a combo pack for $18 is amazing too. It definitely beats the $25 cost of one Clarisonic head.
Overall, I am totally impressed with this brush! If you've been hankering for a Clarisonic Mia this is an excellent option. Do you like the ideas of electric cleansing brushes? Do you use one?


The MEVB is an integrated solution for designing, debugging, and evaluating MCU operations of the M68HC16 and M68300 families. It also helps developers evaluate and debug code to be programmed into these MCUs. To simplify and speed evaluations, the MEVB provides microcontroller timing and port replacement circuitry.
support for several sizes and types of memory device (RAM, EPROM, flash EEPROM), selectable via jumpers.
Modular Platform Board (MPFB1632) – Printed circuit board that provides interface and power connections for the MPB. The MPFB is not device-specific; it works with the full spectrum of devices of the M68HC16 and M68300 MCU families. Moreover, an MPFB can be reused in multiple projects involving different devices in these families.
MCU Personality Board (MPB) – A device- and package-specific board that defines the MCU to be evaluated. A plastic overlay is also included, which labels pin-outs for the MPFB logic analyzer connectors specific to the MCU.
In-circuit debugger (ICD16 and ICD32) – Full background debugger, also not device-specific, which consists of a printed circuit board, a cable, and development software. The circuit board and cable connect a host computer's parallel port to the MPFB background debug mode connector.
www.mcu.motsps.com/dev_tools/index.html. For more information on development tools, you can contact Motorola Tech Assistance at 1-800-521-6274. For pricing and availability, your best bet is to get in touch with your local Motorola sales office.
Consider using a DSP-specific processor--for example, the DSP56002. Motorola offers a $149 kit (DSP56002EVM) including software. You get a 40 MHz 24-bit DSP with high quality audio input. See www.mot.com/SPS/DSP/products/DSP56002EVM.html for details. Folks who have read our book should be fairly comfortable with the architecture of most any DSP chip--you've seen how the architecture and instruction set of the M68HC16 allow efficient DSP operations; now imagine an architecture where these design issues take center stage! Other manufacturers offer similar evaluation boards for their DSP chips, such as Analog Devices (about $90 for their EZ-Kit Lite for 16-bit fixed point, higher for floating point chips) and Texas Instruments (about $100 for their 16-bit fixed-point, higher for floating point versions). These are excellent learning tools!
The MCUasm tools are described at www.mcu.motsps.com/dev_tools/software.html. The package for the M68HC16 seems to be about $400. However, older versions of DOS-based MASM tools might be available on the Motorola FTP site; for example, at www.mot.com/pub/SPS/MCU/masm_dos.
See www.mcu.motsps.com/freeweb/index.html for entry to the Motorola FTP site, which includes code for the 68HC16. (You might also look under masm_dos to see if older MASM software is available.) Code for the 5-Band Frequency Analyzer and other examples can be found here.


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Home Forums > Life > SciFi & Fantasy >
Shows about time travel
Discussion in 'SciFi & Fantasy' started by arfa brane, Apr 9, 2018.
Gawdzilla Sama Valued Senior Member
Anybody read The Cat Who Walks Through Walls ?
Gawdzilla Sama, Apr 10, 2018
Janus58 Valued Senior Member
Gawdzilla Sama said: ↑
Yeah. That and Time enough for Love, The Number of the Beast, and To Sail beyond the Sunset. All of which are interconnected in some way.( There are also connections to The Moon is a Harsh Mistress and The Rolling Stones ( among other Heinlein novels).
Janus58, Apr 10, 2018
Dinosaur Rational Skeptic Valued Senior Member
Mainstream science no longer believes in the deterministic concepts of the 1800's.
The current belief is that the classical world of our senses is based on a quantum level of reality which is probabilistic rather than deterministic.
Dinosaur, Apr 10, 2018
DaveC426913 Valued Senior Member
I read a bunch of Heinlein novels. I think I started too late. I found a lot of it irritating.
DaveC426913, Apr 10, 2018
Janus58 said: ↑
Totally an accident, I'm sure.
DaveC426913 said: ↑
I've tossed more than one book because I thought the author was full of it.
If a time travel device is some day invented, it might become more useful as a space traveling device, unless it was accompanied by movement in space.
Suppose the device took me circa 30 days into the past. If I remained in the same place, I would be a long way from the Earth of 30 days ago .
Note that the typical time travel paradoxes might not be possible. If I went back to the time when my grandfather was 10 years old, I would far away from that 10 year old version of him unless the device also moved me spatially.
Four dimensional tracking would be required, most certainly, begging the question "How do we get that data?"
Dinosaur said: ↑
I have a suspicion that any time travel device would be limited to travel over the span of time that the time machine itself is in existence. You would enter the time machine at some point of its time line and exist it at another point of its timeline.
This solves two problems:
It explains why we do not now have any time travelers visiting from the future now.
It takes care of the movement in space problem*. You just appear where the time machine is at that time. ( However, there may be other issues in play. Is momentum conserved? if so what happens when you transport back by 6 months and appear with a velocity some 60 km/sec relative to the machine itself.)
* The movement in space issue is, in of itself, a bit of a head-scratcher. Movement relative to what? Since there is no absolute frame of rest by which to measure motion, there is no way to say how much the Earth "moved" over those 30 days in any absolute sense.
You have to admit that we're a good ways away from where we were when you were born, right?
Again, relative to what?
The speed at which the Sun (and the rest of the Solar System) move relative to the average of the nearby stars. This speed is at the moment about 20 km/s or 72,000 km/h, but can change in the future because of the gravity of other stars that the Sun may pass on its travels.Apr 24, 2017
Astronomy Answers: AstronomyAnswerBook: Motion of the Earth
aa.quae.nl/en/antwoorden/beweging.html
C C Consular Corps - "the backbone of diplomacy" Valued Senior Member
arfa brane said: ↑
In the Netflix SF series Travelers, they get around the problem of sending a human consciousness, i.e. someone's mind, into the past with a quantum "stack". What this does has something to do with entanglement, plus some unspecified way of transmitting information across an Einstein Rosen bridge (or something).
In the non-specific sense of how it's mutably implemented in different fiction, "temporal migration of consciousness" is potentially an old idea dating back at least to John Wyndham's Consider Her Ways (if not well before). The Alfred Hitchcock Hour did a version of the short-story in 1964. (video clip)
But objections aside about whether or not a future human race will build such a thing, what else is the problem about the idea that transmitting any kind of information back into the past can alter it?
Novikov Self-Consistency Principle: "Asserts that if an event exists that would cause a paradox or any *change* to the past whatsoever, then the probability of that event is zero. It would thus be impossible to create time paradoxes."
Since time-travel is speculation anyway, back in the March 1994 issue of Scientific American, David Deutsch's The Quantum Physics of Time Travel(PDF) took a stab how consistency could be preserved in the context of non-classical physics. Today, experiments stemming from Seth Loyd's views seem to indeed indicate that information sent into the past could only yield outcomes which maintained consistency (or only particles which did not contradict their own origins or existence could successfully time-travel).
The team found that only those photons that wouldn't lead to paradoxes made it through unscathed. Although the result is in line with expectation, no one has simulated time travel in this way before. An odd consequence of post-selection is that because the presence of a CTC annuls paradoxical states completely, it can disallow some states that seem innocuous today but have unacceptable consequences later. "In principle, one could detect the future existence of time machines by … looking for deviations now from the predictions of quantum mechanics," says Todd Brun of the University of Southern California in Los Angeles. Although, he adds, it's hard to know in advance what to measure."
Time travel experiment demonstrates how to avoid the grandfather paradox (2011)
https://phys.org/news/2011-03-grandfather-paradox.html
Time Travel without Regrets (2011)
https://physics.aps.org/story/v27/st5
Time Travel Simulation Resolves "Grandfather Paradox" (2014)
https://www.scientificamerican.com/article/time-travel-simulation-resolves-grandfather-paradox/
C C, Apr 10, 2018
"Relative to the average of the nearby stars" is a reference of convenience, not one against which absolute motion can be judged . You could just as easily choose the Solar system's motion relative to the Galaxy's center, or our galaxy's motion with respect to the center of mass for the local group, or our motion with respect to the CMBR. The point is that none of these references are "special". None of them can be considered THE reference against which the Earth's motion is measured. When there are an infinite number of equally valid reference frames from which you can measure the motion of the Earth, how do you justify using one over any of the others?
You may quibble as much as you like.
Quibbling? That is the nature of relativity. There is no preferred reference frame.
Certainly the local group of stars is not a preferred reference frame. How many? The closest 10? The closest 20? If I make it 21 instead of 20, the velocity changes.
How is pointing out something that is fundamental to the very nature of the universe quibbling?
gmilam Valued Senior Member
The Door into Summer is another interesting Heinlein Time travel story.
gmilam, Apr 10, 2018
gmilam said: ↑
Yeah, and a good "revenge is sweet" as well.
Q-reeus Valued Senior Member
C C said: ↑
In all the so-called resolutions proposed there not involving traveling somewhere else i.e. 'parallel universes', it's assumed either CTC's are possible (requiring GR to be fully self-consistent - it aint), or restrict to very simple quantum interactions where degrees of freedom are at the binary level. Try transporting even one complex molecule say a protein, and watch the argument fall apart. Further, such simple scenarios neglect that the mere presence of even one particle from the future will gravitationally effect it's surroundings. Unavoidably then altering the future state of the universe. All still bunkum.
Q-reeus, Apr 11, 2018


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Deep in the forest, Dutch prepare to welcome refugees
Deep in a tranquil Dutch forest a transformation is taking place, as the Netherlands scrambles to set up camp for thousands of refugees who will start arriving this week.
(AFP) Deep in a tranquil Dutch forest a transformation is taking place, as the Netherlands scrambles to set up camp for thousands of refugees who will start arriving this week.
Between Wednesday and Friday the first of 3,000 desperate asylum-seekers are expected to stream through the gates at Heumensoord outside the eastern Dutch city of Nijmegen on the border with Germany.
Since late last week, teams of soldiers and private contractors have been working furiously to erect the first marquee tents on the grounds, roughly the size of 10 football fields, as lowbed trucks rumbled in and out to the sounds of drills and jackhammers.
The site is an obvious choice: in the summer some 5,000 soldiers camp here to take part in Europe's largest walk, the Nijmegen Four Day Marches, and infrastructure such as water and power already exists.
In the 1990s it was used twice to welcome hundreds of refugees fleeing the wars that followed the break-up of the former Yugoslavia.
'Give them shelter'
So far, compared to countries like Austria, Hungary and Germany, the Netherlands has been relatively unaffected by the tens of thousands of refugees streaming across the EU's borders.
"We must give these people shelter, we can't leave them in the street, especially now with winter coming," Gerard Brans stated after cycling past the camp to watch the construction process.
Behind him, a front-end loader dumped out another pile of steel spikes which teams of workers drove into the soil to set up yet another massive marquee tent.
Dutch authorities say the asylum-seeker's housing will be "simple and humane" with beds, showers, portable toilets, electricity and Internet connectivity.
The campsite is a temporary solution, though: by next June it will have to be evacuated to make place for the annual marches and for use in a paralympic event.
In a country which professes its multiculturalism, most are mobilising to help with the refugee crisis, despite tightened immigration rules and calls by far-right politician Geert Wilders to "close the gates".
In the 1990s, the number of asylum-seekers to the Netherlands regularly exceeded 40,000 every year -- particularly after the 1990s Balkans wars.
However, between 2002 and 2013 the annual number never went above around 20,000.
'Asylum shopping'
But the dragging conflicts in Syria, Libya, Iraq, Eritrea and elsewhere have changed the situation.
Asylum applications rocketed by 159 percent in the second quarter of 2015 in the Netherlands, higher than anywhere else in the EU, according to the continent's Eurostat database.
Even though the actual number of 6,270 applications remained low compared to Hungary (32,675) and Germany (80,935), it has been enough to sound a wake-up call across the country.
Military barracks, sports halls and unused prisons have been commandeered to house thousands of beds. And the refugee numbers are climbing: last month 7,000 asylum applications were recorded.
This month, 3,100 applications were received in just one week.
Faced with the influx, Dutch Prime Minister Mark Rutte called on EU countries to agree to binding quotas for the numbers of refugees they would take in.
He said he wanted to put an end to "asylum shopping" whereby refugees travel to richer western European countries only in order to benefit from better welfare systems there.
Firebrand anti-Islam politician Wilders is fighting the intake, saying some refugees may have radicalised Muslims hidden among them.
"The Netherlands does not want Islamisation in the country. Soon we'll be Hollandistan," the platinum-haired Wilders told lawmakers last week.
Back in Nijmegen however, Frits van Loosen, 57, said he'll continue to walk the woods past the camp, even if it was packed with refugees.
"It makes no sense worrying about the future," he answered with a shrug when asked about the coming of the refugees.
"There's no evidence for now that they'll be a nuisance," he added.
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Forget pastel pinks and sunny yellows; forget frothy sprigs of gypsophila; forget daffodils and tulips. Instead go for a fresh spring green palette. With minimal colour, you can really afford yourself the room to play with texture and height.
Hellebore, ornamental cabbages, apple blossom, camellia, hazel catkins, euphorbia, lily of the valley and peonies all have varied and interesting textures and very neutral green to white colour palettes which will make for a really unusual and striking arrangement. Simply tie off with brown gardener's string and a brown paper wrap. For standing arrangements; an eclectic selection of jars and jugs will work a treat.
To give your arrangements a modern edge, focus on shape. Choosing some quite geometric and unusual shapes will help freshen up your flowers no end. So think big spherical alliums in deep blue-violets, big puffball dahlias in white or deep reddish black, little top heavy wisps of white and blue agapanthus, tall cones of acanthus, and even a variety of succulents will all provide eye catching visual interest. When working with unusual shapes such as these, it is important to keep the colour palette pared back. Keep a nice minimalist base of whites, creams and greens and top up with splashes of bluish purples and dark blooms.
Autumn is a season synonymous with rusty oranges and reds; so throw those out of the window! As you're winding down towards winter, we think this is the perfect time of year to bring some much needed splashes of colour and, to keep things clean and a bit different; this time we are going to focus on foliage.
For the dramatic foliage element of your arrangements go for silvery tones to stay away from that stereotypical 'dark for autumn' colour scheme. Go for eucalyptus, silverberry, silver bay hosta, cardoon or similar for the foliage and accent with bundles of bluish purple Michaelmas daisies, verbena, and anemone.
So now that you know how to get your flowers looking pristine, you'll need the ideal setting. To enquire about all things wedding related at our Cotswolds wedding venue, give our fantastic wedding co-ordinators a call on 01451 820 243.


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UK first home buyers a model PM Property Council?
By Unconventional Economist in Global Housing
at 10:30 am on September 11, 2018 | 12 comments
By Leith van Onselen
Back in 2013, , the UK central government launched "Help-to-Buy", a scheme that provided government mortgage guarantees to marginal borrowers that would not otherwise qualify for a loan. At the time, Help-to-Buy was denounced by the Office of Budget Responsibility and the Treasury alike, who claimed that the scheme would do nothing but force-up the cost of housing, whilst opening taxpayers up to potentially large losses in the event that loans turn sour.
To date, Help-to-Buy has injected a massive £8.9 billion of Government support into the housing market, with a further £10 billion pledged as the scheme has been extended until 2021. Under the scheme, the Government lends up to 20% (40% in London) of the cost of a new-build home, with the buyer adding a 5 per cent cash deposit. The loan is interest-free for the first five years. So far, nearly 170,000 buyers have used Help-to-Buy to enter the housing market.
With this background in mind, The Times has warned that Help-to-Buy could leave a generation of homebuyers in negative equity:
Analysis of house prices in ten towns and cities across Britain has found that homes available under the scheme cost an average of nearly 15 per cent more per square metre than comparable properties that are not eligible.
Experts say the figures show that housebuilders are using the higher budgets of Help to Buy purchasers to ramp up prices and profits, while young people are being left in overpriced homes that they will struggle to sell…
To put it bluntly, subsidies like Help-to-Buy are abysmal policy. They benefit current rather than future home owners, create distorting subsidies that are difficult to remove, raise rather than reduce property prices, sustain the addiction to debt, and further inflate an asset bubble.
Politicians inflate asset bubbles for the simple reason that owners of assets are more likely to vote favourably. This was the UK Government's gamble: that it could enjoy the housing bubble and delay the burst. It is myopic and selfish. But using first home buyers as cannon fodder and doubling down on housing risks a much bigger debt hangover (and bust) in the future.
Sadly, be prepared for the Scott Morrison to launch a similarly stupid scheme in Australia in a desperate bid to prevent Australia's housing market from sliding further.
Vancouver house prices continue to fall
By Leith van Onselen The Teranet-National Bank
Canada launches another daft first home buyer subsidy
While the Canada Mortgage and Housing
London drives UK house price rebound
By Leith van Onselen Acadata has released its
Millennials don't prefer apartments, they want a backyard
By Leith van Onselen Back in March, The AFR
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Northwest Cherry Growers
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Meet one of the growers responsible for the many varieties of delicious, fresh fruit in a wide variety of shapes, colors, and tastes!
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In accordance with federal law and U.S. Department of Agriculture policy, Washington State Fruit Commission prohibits discrimination in all of its programs and activities on the basis of race, color, national origin, age, sex, religion, political beliefs, or disability. Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact the Washington State Fruit Commission at (509) 453-4837.
To file a complaint of discrimination, write the USDA, Assistant Secretary for Civil Rights, Office of the Assistant Secretary for Civil Rights, 1400 Independence Avenue SW, Stop 9410, Washington, DC, 20250-9410, or call toll-free at (866) 632-9992 (English) or (800) 877-8339 (TDD) or (866) 377-8642 (English Federal-relay) or (800) 845-6136 (Spanish Federal-relay).


Part of the Chapitô circus school, this cosy bar is accessed via a winding staircase from the upstairs terrace. During the day it functions as an internet café and study area, but on a Friday and Saturday night it's a great place to catch live bands.
rnThe music policy is loose, but reliably eclectic, with acts ranging from 1950s swing to African percussion. The focal point is a large marble bath filled with cushions, from which the artists perform. A consistently receptive audience of artists and bohemian students are never afraid to participate, making for a lively atmosphere.
rnThe space itself is equally vibrant, with lurid mosaics and barber's chairs forming part of the furniture. An evening at Net Jazz is a truly unique experience. This is the kind of bar you'd love to stumble across anywhere in the world.


Loops is an amazing new project, created collaboratively between the Merce Cunningham Dance Company and The OpenEnded Group, to release Merce Cunningham's choreography for his solo dance Loops under a CC BY-NC-SA license.
By releasing Loops under a CC-license, anyone is able to perform, reproduce, and adapt it for non-commercial purposes. Simultaneously, the digital artists of The OpenEnded Group (Marc Downie, Shelley Eshkar, and Paul Kaiser) will release a digital portrait of Cunningham, also entitled Loops, as open source software. This artwork derives from a high-resolution 3D recording of Cunningham performing the solo with his hands and promises to provide ample substance for derivative works.
The public release of the Loops project will take place this Tuesday, February 26 at 6:30 PM in the Merce Cunningham Studio. The event is co-hosted by the New York Public Library for the Performing Arts at Lincoln Center and will include a presentation of the choreography and digital artwork, remarks from Merce Cunningham as well as Paul Kaiser and Marc Downie of The OpenEnded Group, and a reception. The choreography and code will be released simultaneously online the same day.


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FDA Weighs Tighter Regulation of Homeopathic Medicines
Critics say these natural remedies are ineffective, potentially dangerous; backers contend current oversight is sufficient
TUESDAY, April 21, 2015 (HealthDay News) -- Homeopathic treatments could receive greater scrutiny from the U.S. Food and Drug Administration in the near future, as their growing popularity has led some critics to call for tighter regulation.
The FDA on Tuesday wrapped up two days of public hearings on homeopathic treatments, in which the agency took testimony on whether it should regulate the natural remedies the way it does over-the-counter drugs.
If it does, the makers of homeopathic medicines would have to demonstrate the safety and effectiveness of their products before they could be sold in drug stores and natural food shops.
The FDA would also review each products' labeling, to weed out false or misleading claims.
The agency last reviewed its regulation of homeopathic products in 1988, when it issued a policy guide that allowed the natural remedies to be placed on shelves without any pre-market approval, said Cynthia Schnedar, director of the Office of Compliance in the FDA's Center for Drug Evaluation and Research.
"The market has grown tremendously in that time," Schnedar said. "It was a multi-million dollar industry at the time, and now it's a multi-billion dollar industry. In addition, we've seen some emerging safety concerns with the products. Because of the passage of time, the growth of the industry and these emerging concerns, we thought it was time to take another look."
The agency has issued nearly 40 warning letters since 2009 regarding the safety of various homeopathic products, Schnedar said.
In 2009, the FDA issued a warning after receiving 130 reports of patients losing their sense of smell after using a Zicam product -- a cold-fighting homeopathic nasal spray that contained zinc, she said.
A year later, the agency issued a recall for homeopathic Hyland's Teething Tablets, a product that used belladonna as its active ingredient, she said. Babies had begun showing symptoms of belladonna poisoning, and lab work revealed that the tablets contained inconsistent amounts of the potentially deadly herb.
And the FDA warned asthma sufferers earlier this year to avoid homeopathic products that promise to treat asthma symptoms. "These products have not been evaluated by the FDA for safety and effectiveness," the agency said at the time.
Critics of homeopathic products argue that these remedies should endure the same sort of regulation as the over-the-counter drugs with which they share shelf space.
They say there's no evidence that homeopathic drugs actually work. On top of that, there are concerns that the medications may contain a mixture of ingredients that could prove dangerous to users.
"Not only do homeopathic remedies undergo none of the FDA review that conventional drugs are subject to, but they are not regulated even to the degree that dietary supplements are," Dr. Adriane Fugh-Berman, an associate professor of pharmacology and physiology at Georgetown University Medical Center, testified at the hearings. "Disease claims are disallowed for dietary supplements, but homeopathic remedies can make the same disease treatment claims as conventional drugs."
Practice traces roots to 18th century Germany
Homeopathy is an alternative medicine developed in Germany at the end of the 18th century, according to the U.S. National Center for Complementary and Integrative Health (NCCIH).
Homeopathic remedies are derived from plants, minerals and animals. Examples include red onion, arnica, crushed whole bees, stinging nettle and belladonna. These ingredients are diluted and then taken in many forms, including sugar pills, ointments, gels and creams, the NCCIH says.
Homeopathy has become a big business in the United States. Adults spent almost $3 billion on homeopathic medicines in 2007, according to the NCCIH, with an estimated 4 million adults and 910,000 children relying on these natural remedies.
Many drugs labeled as homeopathic are marketed in major retail stores as natural, safe and effective alternatives to prescription and over-the-counter medications, according to the FDA.
Science has found little evidence that homeopathy works, and its tenets run counter to basic science, critics contend.
"A number of the key concepts of homeopathy are not consistent with fundamental concepts of chemistry and physics," the NCCIH says on its website. "For example, it is not possible to explain in scientific terms how a remedy containing little or no active ingredient can have any effect."
Despite this, the federal government has left the homeopathic drug market largely unregulated. When the FDA created its formal process to review over-the-counter drugs in 1972, the agency specifically excluded homeopathic medications, even though they fall under its jurisdiction.
"FDA deferred review of drugs labeled as homeopathic due to the uniqueness of homeopathic medicine and stated that FDA would review them as a separate category at a later time," the agency said in its public hearing announcement. "To date, FDA has not reviewed this class of products for safety and efficacy."
Homeopathy's champions say current oversight 'working well'
Supporters of homeopathic medicine testified during the hearings that they see no reason to now step up regulation of these natural products.
The American Association of Naturopathic Physicians (AANP) "believes that FDA's current regulatory approach to homeopathic products is working well," AANP board member Amy Rothenberg said during her testimony.
"The low cost of these medicines, as well as the consistent quality of product, make them appealing to both physician and patient," said Rothenberg, who is a naturopathic physician. "Over decades of use, we have not found problems or variability with quality of the homeopathic product, and no toxicity has been reported."
But others testified that it's time the FDA stepped into the fray.
"We could spend hours discussing the extensive, decades-long scientific examination of homeopathy, but suffice to say the empirical evidence against homeopathy is overwhelming," said Michael De Dora, director of public policy for the Center for Inquiry, an advocacy group that said it promotes reason and scientific integrity in public affairs. "Aside from a placebo effect, homeopathic products have no effect in treating illnesses."
De Dora testified that his group is concerned that many people put their lives at risk by treating their illnesses with homeopathic cures rather than scientifically proven medical treatments.
There's also some concern that homeopathic drugs may not be as safe as touted, Fugh-Berman said.
Because homeopaths believe that "less is more," that means that a low-dose homeopathic remedy actually contains a greater amount of the active ingredient, she testified.
For example, the homeopathic cold remedy called Cold-Eeze contains 13.3 milligrams of zinc per lozenge, Fugh-Berman said. "At the recommended six lozenges a day, that's about 80 mg/zinc daily, or 10 times the recommended daily allowance for adult females and eight times the recommended daily allowance for males," she said, noting that excessive zinc intake can cause toxic effects.
Taking too much zinc might cause fever, coughing, stomach pain and fatigue, according to the U.S. National Institutes of Health. And too much zinc taken over a long period of time may also double the risk of prostate cancer.
The FDA will accept written or e-mailed comments on homeopathic medicines until June 22. Beyond that, the agency has no timeline for the completion of its review, Schnedar said.
Visit the U.S. National Institutes of Health for more on homeopathic treatments.
SOURCES: Cynthia Schnedar, J.D., director, Office of Compliance, Center for Drug Evaluation and Research, U.S. Food and Drug Administration; April 20, 2015, testimony, U.S. Food and Drug Administration public hearing on homeopathic products regulation
Consumer News Products Language English News types News Topics Alternative Medicine: Misc. Food & Drug Administration Homeopathy


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An Introduction To Linux Concepts Information Technology Essay
An operating system is a package plan that acts as an interface between a user and a computing machine. It consists of instructions that are given to the hardware constituents of the computing machine to execute specific undertakings, such as making or copying paperss and sing them. Some illustrations of operating systems are Linux, Windows XP, Windows 7, Solaris, Mac, and UNIX.
Another ground for Linux 's popularity is that unlike proprietary operating systems, its beginning codification is freely available to anyone. As a consequence, big communities of users and developers have contributed to do the operating system rich and versatile in characteristics. Many persons and communities have used the Linux beginning codification to develop different types of Linux-based runing systems, which are called distributions. Some of the popular Linux distributions are: Debian, Fedora, Red Hat, SUSE, and Ubuntu.
1.2 Open Source Software
In this subject, you will larn what unfastened beginning package is and how it is different from closed beginning and free package. You will besides place the assorted unfastened beginning package and applications available. Last, you will larn about licensing.
1.2.1 Specifying Open Source
The unfastened beginning package is free package. The term free does non mention to the cost of the package. Alternatively, it refers to the freedom given to the users to suitably modify the plan. The unfastened beginning package allows users to freely utilize its beginning codification and custom-make it to run into single demands.
Note: The unfastened beginning package can be used as it is or can be redistributed after doing alterations to it.
The unfastened beginning package allows users to:
Access the beginning codification of the package.
Run the package for commercial or personal usage.
Custom-make the beginning codification to run into specific demands.
Redistribute transcripts of the package.
Let go of the customized package to the populace in general.
However, this redistribution of transcripts with or without alterations may or may non be free. The individual or bureau redistributing the package may bear down the terminal user the costs involved in media and redistribution.
You may besides better the beginning codification and redistribute the package for a fee. Alternatively, you may administer the improved beginning codification free of cost but charge the users for services, such as ascents, additions, or support.
For illustration, Fedora Linux is available free of cost for terminal users along with the ascents, sweetenings, and additions to the operating system. However, Red Hat Enterprise Linux beginning codification is free but end users have to pay a fee for ascents, additions, and support.
1.2.2 Comparing Open Source with Closed Beginning
Open beginning package is besides different from closed beginning or proprietary package. The proprietary package beginning codification is non released to stop users and is merely available in a compiled feasible province. The terminal users have to buy the package to utilize it for personal or commercial intents. In add-on, copying or redistribution of the package may be restricted by the licence understanding between the seller and the terminal user.
Closed beginning package are by and large owned, developed, and distributed by a individual seller to stop users who purchase the package for a license fee. Servicess, such as ascents, additions, and support are defined by the licence understanding between the seller and the terminal user. These may change as per the merchandising and distribution scheme of the seller.
1.2.3 Identifying Open Source Operating Systems and Applications
The assorted unfastened beginning runing systems are:
Open Solaris: Is an unfastened beginning runing system sponsored by Sun Microsystems.
Fedora Linux: Is an unfastened beginning Linux operating system sponsored by Red Hat. It has a release rhythm of six months.
Red Hat Enterprise Linux: Is an unfastened beginning Linux runing system by Red Hat. However, end users have to pay subscription fee for support and other public-service corporations shipped along with Red Hat Enterprise Linux.
Open SuSE: Is an unfastened beginning Linux-based operating system sponsored by Novell. Open SuSE is a German distribution. There are a batch of applications and public-service corporations packed along with Open SuSE Linux. It besides contains StarOffice ( Private Edition ) and Word Perfect ( Private Edition ) . It is really popular in Europe.
Mandrake Linux: Is an unfastened beginning Linux operating system. Mandrake offers the power and stableness of Linux to both single and enterprise users in a user-friendly environment. It contains assorted high-quality applications, such as a complete Office Suite of plans. It besides provides a constitutional installing support.
Debian Linux: Is an unfastened beginning Linux-based operating system sponsored by the Debian community. Debian is among the earliest distributions of Linux and is available free of cost. It offers precompiled package bundled with more than 8000 bundles and an easy installing process.
The assorted unfastened beginning applications are:
Apache Web Server: Is an unfastened beginning Web waiter sponsored by Apache Software Foundation. It runs on assorted runing system platforms including UNIX, Linux, Solaris, and Windows. It besides provides support for a assortment of characteristics runing from server-side scheduling linguistic communication to multiple hallmark strategies.
Sendmail: Is an unfastened beginning get offing application sponsored by the Sendmail Consortium. It is a general intent internetwork e-mail routing application. It besides supports assorted types of mail transportation and bringing methods, including Simple Mail Transfer Protocol ( SMTP ) . Sendmail is besides available in many proprietary versions.
MySQL: Is an unfastened beginning database application sponsored by Sun Microsystems.
1.2.4 Licensing
Open beginning package can be used for a assortment of intents to accommodate single demands. There are many types of licences that legalize the usage of unfastened beginning package for assorted intents.
Some illustrations of unfastened beginning licences include:
General Public License ( GPL ) : Allows users to box and redistribute the original or modified beginning codification of the package merely with other GPL licensed package. It does non let the unfastened beginning package to utilize any other proprietary package.
Lesser General Public License ( LGPL ) : Allows users to box and redistribute the original or modified beginning codification of the package merely with other LGPL licensed package. In add-on, it allows the usage of proprietary package with LGPL licensed unfastened beginning package.
Berkeley Software Distribution ( BSD ) : Allows redistribution of the unfastened beginning package with any other package. It allows distribution of original beginning codification after alteration even if it uses some other package non covered under the BSD licence. In add-on, it allows the usage of proprietary package with BSD covered package.
1.3 Beginning of Linux
In the earlier yearss of computing machines, developers were looking for an operating system, which was simple and elegant, flexible, and secure. At that clip, the developers of Bell Laboratories introduced an operating system that fulfilled all these demands. This bit by bit evolved into the UNIX runing system.
Linux was derived from UNIX to supply a free or really low-priced operating system to computing machine users. It is considered to be a really efficient and fast-performing operating system.
1.3.1 History of Linux
The name of the Linux operating system was coined by Linus Torvalds in 1991. Linux was developed on Minimal UNIX ( MINIX ) , a UNIX version, utilizing GNU 's Not UNIX GNU C compiler.
In 1965, Bell Labs and Massachusetts Institute of Technology ( MIT ) along with General Electric developed one of the first multiuser computing machine systems, called Multiplexed Information and Computing Service ( Multics ) . Ken Thompson and Dennis Ritchie, two Bell Labs applied scientists, worked on this undertaking until 1969.
Subsequently, they developed another operating system in C linguistic communication. This added flexibleness in porting the operating system to other calculating platforms, which was non easy with Multics as it was written in assembly linguistic communication. This operating system was named Uniplexed Information and Computing Service ( Unics ) , which was similar to the Multics operating system. The name Unics was so changed to UNIX.
In 1972, Ken Thompson and Dennis Ritchie re-wrote UNIX utilizing the C scheduling linguistic communication. Around 1974, UNIX was licensed to universities for educational intents and, a few old ages subsequently, it was made available commercially.
Berkeley Software Distribution ( BSD )
During 1976-1977, Ken Thompson was on sabbatical for six-months from Bell Labs to learn as a visiting professor at the Computer Science Department at the University of California-Berkeley ( UCB ) . He taught the UNIX runing system. His Sessionss were really popular.
When Thompson returned to Bell Labs, pupils and professors at Berkeley continued to heighten UNIX. Finally, all these sweetenings got incorporated into BSD Version 4.2.
MINIX was another version of UNIX, which was used as a instruction assistance in universities and colleges. It was a free UNIX ringer available with all the beginning codification. Due to its little size, micro kernel-based design, and ample certification, it was good suited to people who wanted to run a UNIX-like system on their personal computing machine.
It is interesting to observe that MS-DOS was created much later than UNIX. By that clip, the industry had begun to accept UNIX as the criterion operating system. Therefore, UNIX characteristics have influenced the design of MS-DOS. Many sellers, such as Sun, IBM, and Hewlett-Packard, purchased the beginning codification of UNIX. They developed their ain versions of UNIX.
This resulted in many differences amongst assorted versions of UNIX offered by assorted companies. To avoid the confusion, some criterions called Portable Operating System Interface ( POSIX ) , were outlined. POSIX is a set of criterions that enabled package to run on assorted UNIX-based runing systems without altering the beginning codification.
Note: POSIX is produced by the Institute for Electrical and Electronic Engineers ( IEEE ) and recognized by International Organization for Standardization ( ISO ) and American National Standards Institutes ( ANSI ) .
In 1983, an MIT scientist, Richard M. Stallman, launched the GNU 's Not UNIX ( GNU ) undertaking. The chief purpose of this undertaking was to make a UNIX-like operating system but free from licensing charges. Under this undertaking, the GNU operating system was distributed to coders around the universe to better it.
To form the work on the GNU undertaking, Stallman and other people created the Free Software Foundation ( FSF ) . This organisation promoted the development and usage of free package. FSF developed the GPL to construct a organic structure of free package protected from those who would utilize it to make proprietary closed-source systems. The organisation charges a little fee to run the foundation. Around 1990, FSF had developed a figure of tools that could be freely modified and redistributed.
1.3.2 Development of Linux
Around 1991, Linus Torvalds, a pupil at the University of Helsinki, Finland, was working on Minix. Linus Torvalds liked the characteristics of the UNIX runing system and wanted to make his ain version of the UNIX runing system. After he created this operating system, he gave it free of charge for everybody to utilize. Torvalds worked on the undertaking, wrote the beginning codification for the meat, and named it Linux. The meat was the nucleus plan of the Linux operating system. Torvalds made the Linux kernel available on the Internet.
The Linux meat was combined with the GNU system ensuing in a complete operating system. This operating system was called GNU/Linux because it was a combination of the GNU system and Linux as the meat. The GNU/Linux operating system is referred to as the Linux operating system. Like other runing systems, it has a meat in its nucleus. The meat controls the resources of the computing machine and signifiers an interface between the user and the hardware.
Linux follows the unfastened development theoretical account. Torvalds has made the beginning codification of the Linux meat available for survey and alterations on the Internet. This means that the current development version of Linux is ever unfastened to everybody. Torvalds besides accepts alterations to the meat codification. The consequence is that whenever a new version of Linux with new functionality is released, people work on the new version to repair bugs, if any. To keep stableness, Torvalds exercises rigorous quality control and so merges all the new codification into the meat. This is in contrast to a closed theoretical account, in which a undertaking squad works on the package version and there are long intervals before people use the package and repair the mistakes in it.
By looking at the version figure of Linux, you can state if it is a stable or test version. In version 1.x.y, if x is an even figure, it signifies a stable version of Linux. Conversely, if x is an uneven figure, it signifies a beta ( test ) release of Linux.
The Internet has played a major function in the development of the Linux operating system. Today, many companies provide support for Linux on the Internet. Many Linux forums on the Internet allow free enrollment and subscription to the latest information. The official mascot for Linux is the Linux penguin, called Tux. This mascot was selected by Linus Torvalds.
The undermentioned figure ( Refer to Figure 1.1 ) shows the Linux functionary mascot.
Figure 1.1: The Linux Official Mascot
1.3.3 Features of Linux
The characteristics of the Linux operating system are:
Multiprogramming: Allows plans to be executed at the same time utilizing the same set of calculating resource. In Linux, concurrent execution is made possible by utilizing the construct of time-sharing. This means that the operating system has to pull off assorted plans to be executed. These plans are queued and Central Processing Unit ( CPU ) clip is shared among them. Each of the running plans get CPU clip for a specific period and are so put back in the waiting line to wait for its bend once more. In the average clip, the following plan in the waiting line is attended.
Multitasking: Is the ability of any operating system to manage the executing of multiple undertakings. While a undertaking is waiting for the completion of an activity, the CPU begins with the executing of the following task.while one undertaking is waiting for input from the user, another plan could be put ining an application. To explicate the construct of multitasking, see an illustration where you are holding your breakfast, watching a Television, and speaking to your female parent over the phone. You are executing more than one undertaking at the same time. However, at a given point in clip, you would be taking a bite, watching the Television, or talking on the phone. This means, you divide your clip amongst all the undertakings. Similarly, the CPU divides the clip among all the active undertakings. The meat is responsible for scheduling the undertakings.
Virtual memory: Is an extra memory that an application can utilize when the physical memory is already consumed. This means some portion of the difficult disc is made available for the application, to be used as the practical memory. The sum of physical memory may non ever be sufficient to run big applications or to hold multiple applications active at a point in clip. The system places infrequently required plans and informations in the practical memory and loads them in the memory, whenever required. Therefore, it uses the resources of the computing machine to the optimum.
Shared libraries: Are sets of maps or subprograms maintained as a set of files. Multiple applications can entree the needed maps from the shared library files alternatively of separately keeping codification for the maps. This saves difficult disc infinite and memory.
POSIX-compliance: Supports most of the criterions set for all UNIX systems.
Obeche: Is derived from the Server Message Block ( SMB ) protocol of the Microsoft runing systems to portion file and print services. Samba is a suite of plans that implement the SMB protocol in Linux. It allows you to portion a Linux file system with the Windows operating system and besides portion a Windows file system with Linux.
A protocol is a set of regulations that states the communicating criterions for informations transportation between two applications.
The term file system refers to a mechanism used by an operating system to hive away and pull off files and directories on a storage medium.
A divider is a logical part of the difficult disc, which is created utilizing either the operating system-based public-service corporation or any third-party public-service corporation.
Network Information Service ( NIS ) : Allows you to make user histories that can be shared across multiple computing machines in a web. It is a client and server database system that acts as a cardinal database of history information used for history hallmark.
Office suites: Are supported by Linux. Basically, Linux supports OpenOffice.org, which is a set of plans that has many in-built tools. OpenOffice.org enables you to make paperss, presentations and illustrations, and analyze informations. OpenOffice.org provides a set of applications merely like Microsoft Office Application for Windows.
Data file awaying public-service corporations: Are the public-service corporations provided by Linux for basic informations backup ( file awaying ) , such as pitch, cpio, and Doctor of Divinity. Advanced Maryland Automatic Network Disk Archiver or Amanda is a backup system supported by Linux. It enables the Local Area Network ( LAN ) decision maker in puting up a maestro backup waiter and do back up for multiple hosts in a big capacity tape thrust.
Web waiter: Linux comes with the Apache Web waiter, one of the most popular Web waiters in usage today. Apache besides supports the Squid placeholder waiter that helps to better the public presentation for accessing the Internet.
Licensing: For Fedora means that anyone can download, put in, or utilize the package and any updates to the package, irrespective of the bringing mechanism. Linux is a right of first publication under the GNU GPL.
Extra characteristics: Include utile and free package, such as text editors, browsers, and scientific applications.
1.4 Basic Principles of Linux
The basic rules of the Linux package include:
Stability and Dependability
Linux is a stable operating system, which does non necessitate to be restarted sporadically to keep public presentation degrees. It provides equal protection against stop deading up or decelerating down over clip due to issues, such as disc defragmentation and clogging of impermanent files. This consequences in increased uptime.
Linux is modular by design. This means that you can merely put in applications that are truly needed. This saves a batch of resources that would travel waste in pull offing unneeded applications and public-service corporations that otherwise come bundled with non-modular runing systems. It besides helps Linux to stay extremely customizable and easy to keep and pull off.
As a multiuser operating system, everything in Linux is managed as a file and all the constellations are stored in text format. The package constituents of Linux are individual purpose plans and are designed to work together to execute complex undertakings in a multiuser environment. This helps Linux perform better even with less resources.
The assorted public-service corporations and plans of the Linux operating system are majorly unfastened beginning. A big community of developers and users are at that place to prove, modify, and better them. Therefore, bugs are reported and fixed comparatively faster every bit compared to proprietary operating systems. A big developer base besides consequences in frequent ascents and improved releases to take attention of any defects in the operating system.
Linux provides a figure of characteristics that cater to assorted security demands at personal, commercial, and organisational degrees. The assorted Linux security characteristics include:
File System Security: Linux has a hierarchal file system that keeps similar files, such as informations, plans and constellation files at fixed locations in a structured manner. This allows better arrangement of security policies to guarantee safety for the file system.
Firewall Security: Linux provides a extremely customizable and unafraid firewall that can provide to assorted personal and commercial demands. It supports really simple yet effectual constellations to really complex constellations providing to commercial or organisation scenarios.
Run Levels Security: Linux provides tally degrees with a predefined set of services being available in peculiar tally degrees. These tally degrees can besides be customized to include or except services accommodating to user demands. The tally degrees help users originate and run minimal figure of services required. This non merely helps in salvaging cherished calculating resources but besides reduces surface country for any security menaces.
Servicess: Linux services are known as devils. These devils can be configured to run under mulct grained user degree security. For illustration, a user in Linux can merely run the services meant to be run by him or her merely. This prevents the possibility of an onslaught that can compromise the full computing machine at a clip.
Security Enhanced Linux: Linux provides Security Enhanced Linux ( SELinux ) which provides better entree control and security at the meat degree through security policies. SELinux runs applications into assorted sandboxes and isolates them from each other and the underlying operating system.
Discretionary Access Control ( DAC ) : Linux utilizations DAC to guarantee security in a multiuser environment. This means that the files and directories are labeled with a set of permissions to bespeak:
The user or group, the object belongs to
The types of operation they can execute on it, such as read, compose, or run
Advantages of Linux Operating System
The Linux operating system has several advantages. Some of the advantages are listed in Table 1.1.
Linux waiters need non be shut down for old ages together. This means that users do non confront any operating system failures.
This means that Linux supports older hardware. It can run on assorted types of processors, such as 386 and 486 Intel processors. In add-on, it can run on DEC Alpha, Sun SPARC, PowerPC, and SGI MIPS.
Simple installing and upgrade procedure
Most Linux versions have menu-driven and easy installing processs. In add-on, it provides the ability to upgrade from anterior versions easy. In the upgrade procedure, the system uses the bing constellation files and maintains a list of its actions during installing.
Low entire cost of ownership
The entire cost of implementing Linux waiter package is low. In add-on, the cost of support can besides cut down as there are a batch of people and organisations supplying free support for Linux. The system constellation demands for put ining a Linux computing machine are less. For this ground, the hardware and care cost goes down.
Support for bequest devices
Linux can besides run on a computing machine which has low constellation.
Graphic User Interface ( GUI )
Ten Windows system is the graphical interface for Linux. It is divided into two subsystems dwelling of a waiter and a client. The assorted GUIs provided by Linux are K Desktop Environment ( KDE ) and GNU Network Object Model Environment ( GNOME ) . Both of these GUIs are the versions of the X Window system.
Excellent security characteristics
Linux offers a secure firewall, entree control, and customized tally degrees to guarantee security.
Support for development libraries
Linux offers assorted platforms for many development linguistic communications, such as C, C++ , JAVA, Python, and Perl. It besides supports Integrated Development Environments ( IDE ) , such as KDevelop and Glade.
Support for high user burden
Linux can back up a big figure of users working at the same time. The restriction is typically because of the waiter hardware.
Table 1.1: Advantages of Linux Operating System
1.5 Red Hat Operating System Distributions
Red Hat Inc. provides different discrepancies for assorted types of users. It has divided its users into the undermentioned two classs:
Business Users: The first class includes the concern users who need an operating system that requires fewer updates. Red Hat provides the Red Hat Enterprise Linux merchandise suite for these users. These users need to pay a license fee for the package. The alterations in the operating system are made at a low gait so that concern users need non upgrade the operating system at frequent intervals.
Other Users: The 2nd class includes the users who use Linux for experimental intent and do usage of its new and advanced characteristics. These users use the package without paying any license fee. They can download the package from the Internet and utilize it free of charge. For illustration, Fedora is a freely downloadable runing system.
The assorted Linux discrepancies provided by Red Hat Inc. are:
Red Hat Enterprise Linux suite: Runs on multiple hardware architecture such as IBM PowerPC, AMD64, Intel EM64T, and Intel x86/x64. The runing systems of the Red Hat Enterprise Linux suite are:
Red Hat Enterprise Linux AS: Used for big waiters and supports up to 16 CPUs. This operating system supports databases, Enterprise Resource Planning ( ERP ) , and Customer Relationship Management ( CRM ) applications.
Red Hat Enterprise Linux ES: Used for little and in-between scope waiters and supports up to two CPUs. It is used for concern applications, such as printing, mailing, and networking applications.
Red Hat Enterprise Linux WS: Used as desktop operating system and supports up to two CPUs. This operating system is compatible with Red Hat Enterprise Linux AS and Red Hat Enterprise Linux ES. This operating system is suited for client applications, such as papers processing and package development applications.
Red Hat Desktop: Is used for little and medium concern groups, back uping a individual CPU. It is compatible with Red Hat Enterprise Linux AS, Red Hat Enterprise Linux ES, and Red Hat Enterprise Linux WS. This operating system is suited for papers processing, Web browse, package development, and instant messaging.
Fedora Core: Represents a all-purpose operating system holding capablenesss comparable to other runing systems, such as Windows NT and Macintosh. Fedora Core is a Red Hat-sponsored undertaking but Red Hat Inc. does non back up it. You can download Fedora free of charge from assorted Web sites. The official Web site for Red Hat is http: //www.Red Hat.com.
Red Hat Enterprise Linux has the undermentioned versions released over clip:
Red Hat Enterprise Linux 2.1 ( Panama )
Red Hat Enterprise Linux 3 ( Taroon )
Red Hat Enterprise Linux 4 ( Nahant )
Red Hat Enterprise Linux 5 ( Tikanga )
Red Hat Enterprise Linux 6 ( Santiago )
Red Hat Enterprise Linux is closely related to the Fedora Linux community undertaking sponsored by Red Hat. Every Red Hat Enterprise Linux version takes engineerings from Fedora after considerable stabilisation and quality confidence attempt. While Fedora nucleus has a six month release rhythm, Red Hat Enterprise Linux has a more conservative release rhythm of two old ages.
Even earlier, Red Hat Enterprise Linux versions were besides based on Red Hat 's unfastened beginning Red Hat Linux runing system. But afterwards, Red Hat Linux split into community-based Fedora undertaking and commercial Red Hat Enterprise Linux. The latest Red Hat Enterprise Linux 6 has many characteristics of Fedora 13 and Fedora 14.
However, Fedora is a community undertaking that serves as an upstream version for Red Hat Enterprise Linux. Red Hat Enterprise Linux serves as a commercial endeavor runing system that is released as alpha and beta versions before concluding release.
Since Red Hat Enterprise Linux is an unfastened beginning runing system and its beginning codification can be accessed by anyone, there are certain runing systems, which use Red Hat Enterprise Linux beginning codification. Users compile their ain versions of Red Hat Enterprise Linux. One such popular operating system is CentOS. These rebuilds provide free updates from non-Red Hat waiters. However, these runing systems do non acquire any support from Red Hat.
Drumhead
In this session, you learned that:
An operating system is a package plan that acts as an interface between a user and a computing machine.
Linux is chiefly derived from the UNIX runing system.
The unfastened beginning package is a free package and closed beginning package are by and large proprietary package owned,
Some of the illustrations of the unfastened beginning licences include:
General Public License ( GPL )
Lesser General Public License ( LGPL )
Linux was developed on MINIX, a UNIX version, utilizing GNU C compiler.
The official mascot for Linux is the Linux penguin, called Tux.
Multiprogramming
Shared libraries
POSIX-compliance
Obeche
Network Information Service ( NIS )
Data archiving public-service corporations
Web waiter
The Linux operating system provides assorted advantages, such as backward compatibility, simple installing and upgrade procedure, and low sum cost of ownership.
Linux is chiefly derived from the _____ operating system.
The unfastened beginning package is a ____ package.
Open Solaris is an unfastened beginning runing system sponsored by _________ .
The official mascot for Linux is the Linux penguin, called ______ .
_________ allows plans to be executed at the same time utilizing the same set of calculating resource.
The basic rules of the Linux package include ________ and _______ , and _______ .
Answers to Exert
stableness, dependability, security
Apache Web Server:
It is an unfastened beginning Web waiter sponsored by Apache Software Foundation.
Closed Beginning Software
Closed beginning package are by and large owned, developed, and distributed by a individual seller to stop users who purchase the package for a license fee.
It is an unfastened beginning database application sponsored by Sun Microsystems.
The unfastened beginning is a free package that allows users to freely utilize its beginning codification and custom-make it to run into single demands.
It is an unfastened beginning get offing application sponsored by the Sendmail Consortium. It is a general intent internetwork e-mail routing application.
The Combination Of Hardware And Software Information Technology Essay
E Learning System As Web Services Information Technology Essay


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Home » Lifestyle » Cruise Ship Heads to San Francisco as 21 People Show Coronavirus Symptoms & Former Passenger Dies
Cruise Ship Heads to San Francisco as 21 People Show Coronavirus Symptoms & Former Passenger Dies
The man who died in Placer County, California, Wednesday from the novel coronavirus (COVID-19) traveled on a cruise ship last month — and that ship is now heading for arrival in San Francisco with passengers exhibiting symptoms on board.
During a press conference on Wednesday, California Governor Gavin Newsom said that the Centers for Disease Control and the California Coast Guard are working together to get test kits for COVID-19 to the ship. It will not be able to head to port until passengers and crew are tested.
"The ship is currently off the coast," Newsom said, explaining that the ship's arrival was being delayed "to provide ample opportunity" for the CDC, Coast Guard and state health officials "to conduct tests. Because we have a number of passengers and crew members that have developed symptoms on this cruise."
The ship, the Grand Princess, had been sailing back to the continental U.S. from Hawaii, Newsom said.
"We are going to be flying testing kits to the cruise ship, and we are going to be flying those quickly back to the state, primarily to Richmond Lab where we will be able to test very quickly those samples to determine if individuals that are symptomatic just have the traditional cold or flu, or may have contracted the COVID-19 virus."
"We also will expand the testing protocols to even more passengers, as there are a number of passengers that held over from the Mexico trip and made their way onto the second cruise into Hawaii," the governor added.
The man who died in Placer County — described as "an elderly adult with underlying health conditions" in a county news release — marked the eleventh death in the U.S., and the first in the country outside of Washington State.
He is believed to have contracted COVID-19 while he was traveling aboard the Grand Princess from February 11 to 21 between San Francisco and Mexico, the release said. He had been isolated at Kaiser Permanente Roseville, and "had minimal community exposure between returning from the cruise and arriving at the hospital by ambulance on Feb. 27."
The Kaiser Permanente healthcare workers and the five emergency responders who came in contact with the patient are currently being quarantined and have not exhibited symptoms of COVID-19.
However, it is possible that other cruise passengers were exposed. An estimated 2,500 passengers on that trip live in California, Newsom said at his press conference, and officials across the state are working to contact all of them.
On Wednesday, Princess Cruise Lines sent a health advisory letter to guests and crew currently sailing onboard Grand Princess, alerting them to the fact that the CDC is "investigating a small cluster" of COVID-19 cases in Northern California and asking guests who also sailed on that voyage to remain in their stateroom until they have been contacted and cleared by medical staff.
The letter said the measures were being taken in an "abundance of caution."
The Grand Princess is from the same cruise ship line but not to be confused with the Diamond Princess cruise ship, which was quarantined in Japan for several weeks after COVID-19 spread among the passengers. A reported six people have died from the Diamond Princess outbreak.
Newsom declared California in a state of emergency on Wednesday after the first death in the state was reported.
To prevent the spread of COVID-19, the CDC recommends washing hands often with soap and water for at least 20 seconds, using hand sanitizer, avoid touching your face, coughing into your elbow or a tissue and avoiding contact with anyone suffering from respiratory illness.
We Will Sock You: Queen Launches Sock Collaboration Inspired by Their Greatest Hits
Meghan Markle & Prince Harry Cozy Up Under An Umbrella In Matching Outfits In London — See Pics


← Hi, my name is Melissa, and I'm a crockpot addict.
It's been a VERY tiring 2 days but we had a lot of fun…hope you all had a wonderful holiday too. I will update more tomorrow – until then, here's a glimpse of what our Christmas Eve looked like. Those of you familiar with the Feast of Seven Fishes will recognize a few of these 🙂 Buon Natale!
This entry was posted in Christmas, family, Italian, seafood, shrimp. Bookmark the permalink.


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text:
Elizabeth C. Mohler
Creating a Culture of Accessibility in the Sciences
Creating a Culture of Accessibility in the Sciences | | | | |
Why Hire Elizabeth
Future Engagements
CONTACT MECOVID-19
Print Publications(current)
Sukhai, M., & Mohler, C. (2016). Creating a Culture of Accessibility in the Sciences. You can purchase Elizabeth's book online at: https://www.amazon.com/Creating-Culture-Accessibility-Sciences-Mahadeo/dp/0128040378
Mohler, C., Klinger, L., Rudman, D., & Shaw, L. (2014). An examination of the Macro-level Barriers to Employment for Persons with Vision Loss. Research in Social Science and Disability, 8, 259-275. https://uwocamy.sharepoint.com/:b:/g/personal/cmohler_uwo_ca/EdxpcSsyScVGvCBJKkOwdKwBbz_I03NliE-HqIjY0Q1AKg?e=dNz2rU
Mohler, C. A First-Hand Account of the User Experience of the Aira Application: Implications for OT Practice. OT Now. November 2019.
Mohler, C., & Hazlett, N. Rethinking Disability and Inclusion in the Context of Occupational Therapy: Reflections from the CAOT conference. OT Now. September 2019.
Mohler, C., Shaw, L., & Klinger, L. (2014). Work Tip: Seeking and Retention Issues and Strategies for Persons with Vision Loss. Journal of Work, 46(3), 363-365.
McGrath, C, and Mohler, E. (2020). Navigating a New World: The Experiences of Persons who are Blind or Partially Sighted During COVID-19. Retrieved from: https://crhesi.uwo.ca/margins/navigating-a-new-world-the-experiences-of-persons-who-are-blind-or-partially-sighted-during-covid-19/
Mohler, E. (2020, November 1). People with disabilities at risk of being wrongly deemed 'incompetent' by health system. The Conversation. Retrieved from: https://theconversation.com/people-with-disabilities-at-risk-of-being-wrongly-deemed-incompetent-by-health-system-147545
E: mohlerc@gmail.com
E: cmohler@alumni.uwo.ca
Twitter @mohlerc
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text:
White Heart - White Heart
RATING Not Rated
OUR PRODUCT CODE: 44510-VTI1862
LABEL: Myrrh MSB6735
FORMAT: 12 inch vinyl Album
Posted by Don in state of Delaware @ 19:00 on Oct 20 2011
6 talented guys make up the initial band for this debut album for White Heart. These guys write and play some of the best pop styled songs for ccm.
"Carry On" was the first song I heard from this lp. We are introduced to the incredible vocals of Steve Green: This would be Steve's only album recorded with the group; he would start a long and successful solo career after leaving the group. Another ccm hit was the sensational "He's Returning"; just love it!!
Side 2 includes a great duet with top ccm songstress
Sandi Patti, who was well into her successful ccm career. Dann Huff duets with Sandi on "Everyday"; the song was co-written with Gary McSpadden: great sax by Sam Levine heard. "Black is White" is quite a different & kinda unusual composition; written by member Billy Smiley, Gary McSpadden, and then relatively unknown singer/songwriter/musician in ccm Michael Smith: Michael plays piano on this #.
I have a little difficulty with this song, as it deals with the subject, if the devil wrote a bible: the song gives attention to the devil. BTW, Greg Guidry a known songwriter in pop field lends a hand with bgvs for the song "Black is White; he was very talented on piano
& played in a band with pop icon Michael McDonald. Greg also released a debut album this same year as White Heart: sadly Greg died in a car fire at age 49 in July 2003. The last # on side 2 is a song I really
like "Go Down Ninevah". This first album really showcases the talents of these 6 guys.
GOD Bless! -Don
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