text:
B. Beehler
Publications164
Highly Influential Citations67
T. Pratt
J. Diamond
C. Frith
S. D. Ripley
Hotshots, Hotspots, and Female Preference in the Organization of Lek Mating Systems
B. Beehler, M. Foster
The American Naturalist
It is argued that a strong mating skew among males forces novice males entering a population to adopt a long-term mating strategy that involves delayed breeding (floating) and subordinate lek behavior.
View on U Chicago Press
Birds of New Guinea
T. Pratt, B. Beehler
Geography, Biology
This book is the first definitive ornithological field guide to New Guinea and treats all of the more than 700 species of birds recorded from the region, illustrating more than 600 of them in forty-seven fine color plates and eight black-and-white halftone plates.
The birds of paradise : Paradisaeidae
C. Frith, B. Beehler, W. Cooper
Art, Biology
This book discusses the birds of paradise in human tradition and culture, their evolution and biogeography, and some of the more important locations mentioned in the text.
Homobatrachotoxin in the genus Pitohui: chemical defense in birds?
J. Dumbacher, B. Beehler, T. Spande, H. M. Garraffo, J. Daly
Three passerine species in the genus Pitohui, endemic to the New Guinea subregion, contain the steroidal alkaloid homobatrachotoxin, apparently as a chemical defense, suggesting that birds and frogs independently evolved this class of alkaloids.
Frugivory and Polygamy in Birds of Paradise
Birds of New Guinea: Distribution, Taxonomy, and Systematics
B. Beehler, T. Pratt
Ornithological survey of the mountains of the Huon Peninsula, Papua New Guinea
B. Freeman, Alexandra M. Class, Jennifer Mandeville, Suzanne Tomassi, B. Beehler
Summary.—Based on field work conducted between 2009 and 2012 in the YUS Conservation Area on the Huon Peninsula, we present novel distributional information for 47 avian species. This includes range…
Ecological structuring of forest bird communities in New Guinea
In an attempt to review ecological factors important in the structuring of New Guinea's birdlife, this chapter takes a comparative approach. The first section addresses the avifauna as a whole,…
National Geographic Field Guide to the Birds of North America
Avifauna of the Foja Mountains of western New Guinea
B. Beehler, J. Diamond, Neville Kemp, Edwin Scholes, C. Milensky, T. Laman


1. To give a general introduction to the processes important for influencing the circulation and vertical structure in shelf seas. 2. To explore in detail the fundamental balances and processes governing the physical dynamics of the shelf edge and shelf sea, including tides. 3. To provide an understanding of how the physics impacts and affects many biogeochemical processes in shelf seas, of relevance to global budgets. 4. To undertake an investigation of the links between phytoplankton production and water column processes using a 1-D (vertical profile) coupled numerical model.
Run, visualise and interpret output from a coupled physics/biology 1-D numerical model, explain the results when a key parameter is varied, and use the model to simulate observed physical/biological structures in UK shelf seas.
Quantify the effects of freshwater and tidal mixing on the strength of stratification in Southampton Water.
Identify key physical processes and their implications for primary production through evaluation of oceanographic data.
Summarise the understanding of physical and biological processes described in the shelf-seas literature and contemporary research challenges.
Use and interpret numerical models for scientific problems (computer literacy).
Work as a tema in the field.
Collect and analyse field data to quantify and explain local phenomena controlling the strength of stratification in a Region of Freshwater Influence (ROFI).
Provide a general explanation of the competing effects of heat and fresh water input and vertical mixing by tides and winds in determining the level of stratification in shelf seas.
Describe and explain the physical controls on the biogeochemistry of shelf seas.
Use a 1-D coupled model to investigate physical and biological processes in shelf-seas, in relation to seasonal stratification and tidal mixing fronts.
Understand the physical constraints on transport between the shelf and the deep ocean, the physical mechanisms that drive such transport, and the biogeochemical consequences.
The shelf seas and shelf edge are dynamically very different from the open ocean in terms of typical levels of turbulence and of the control exerted by coastal and seabed boundaries. This module provides you with core knowledge of the processes that govern the relatively shallow shelf seas, from coastal waters to the shelf break. By the end of the course, you will understand a range of physical and biological processes that explain observed structures, distributions and phenomena, both physical and biological, on time scales ranging from seconds to years. First of all, physical forcing and dynamical responses in shelf seas are outlined with emphasis on turbulence and mixing in homogeneous and stratified fluids, recapping some material covered in Physical Oceanography II. Tides are then outlined, from first principles (the equilibrium tide, tidal constituents) to applied situations (propagation of the tide around semi-enclosed seas, resonance and local variations in tidal amplitude). The following section of the course develops a quantification of stratification, the potential energy anomaly (PEA), particularly useful for understanding the seasonal cycle of stratification in shelf seas. In a 1D (vertical) context, the tendency (time variation) of PEA is related to the competing influences of turbulence (due to tides and wind) and stratification (due to heating and freshwater input) in determining the physical environment. Considering a near-balance of mixing and stratifying influences, the location of tidal mixing fronts (TMFs) are predicted, along with the dynamical consequences of these structures (along-front jets). The biological consequences of both seasonal stratification and TMFs are further considered in detail, along with regions of freshwater influence (ROFIs). Finally, dynamical processes at the shelf edge are considered, with emphasis on how the shallow shelf region is connected to the open ocean in spite of strong bathymetric control on shelf edge dynamics. Emphasis is on the physics of upwelling and downwelling events, and how these events can control nutrient and carbon fluxes across the shelf edge, finishing with consideration of the internal tide dissipation and locally enhanced primary productivity. During the course you will also gain practical experience in measuring the strength of stratification using the example case study of freshwater stratification in Southampton water. You will also use and interpret output from a numerical model to explore the seasonal cycles of stratification and productivity in shelf seas around the UK. The model will be introduced in a computing practical and it then forms the basis of a course project, in which you will use model output to demonstrate fundemental physical and biological processes discussed during the course.
Formal Lectures (45-minute lectures): These provide the theory underlying the physics and dynamics of the shelf seas and shelf edge, and associated controls on many biogeochemical processes. Copies of the PowerPoint slides are available on the SOES3009 blackboard website prior to each lecture and the Panopto recordings of the lectures will be available there afterwards. Relevant references appear on the slides where appropriate. At the end of the module, there will be a revision lecture. The lectures are interactive, including time to work through example questions and problems. Practicals: There will be two practical sessions. The first session will introduce you to the 1-D coupled biological-physical water column model and how to visualise the results in relevant software (Excel, Matlab or Surfer). You will learn how to apply the model to predict and investigate seasonal stratification and tidal mixing fronts around the UK. The second session will provide you with the practical ability to measure the strength of stratification in Southampton water. This will be conducted onboard RV Callista or equivalent. Problems classes: A number of problems will be set and discussed during the formal lectures. In addition to this there will be two problem solving classes to further apply your understanding of the physical and biological processes at work in shelf seas. Guest lectures: We aim to include at least one relevant research seminar or guest lectures during the course. A wide range of support can be provided for those students who have further or specific learning and teaching needs.
Simpson, J. and J. Sharples (2012). Introduction to the Physical and Biological Oceanography of Shelf Seas.


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Q: Alert on successful ajax request I built a chat system using ajax and jquery. i want an alert to pop up whenever a message is received.
Here's the ajax code to receive a new message
$(document).ready(function ajax(){
    $.ajax({
    type: 'GET',
    url: 'recieve.php',
    dataType: 'html',
    success: function(response){
      $("#message").html(response);
     },
     complete: function(){
      setTimeout(ajax,1000);
     }
  });
  });

where should i put alert("New message received"); so that it only pops up only when a message is received.
If i put alert in success function it is popping up every second.

A: Try something like this:
var msg_res =''; //store the previous response
$(document).ready(function ajax(){
    $.ajax({
    type: 'GET',
    url: 'recieve.php',
    dataType: 'html',
    success: function(response){
      $("#message").html(response);
      //if response changed, not the same as in msg_res
      if(response != msg_res){
        msg_res = response; //store new response
        alert('New message received');
      }
     },
     complete: function(){
      setTimeout(ajax,1000);
     }
  });
});

redpajama_set_name: RedPajamaStackExchange


text:
Q: Unable to upgrade 16.04 LTS to 18.04 LTS I tried probably all suggestions brought forward. Just want to upgrade. Why can't they give us a extended chance to upgrade with the Software Updater. Can one upgrade by downloading 18.04 LTS and if so from where.

A: You can definitely download Ubuntu 18.04 LTS and install it to replace your current installation.  Considering that you've already "tried everything" - a reinstall is really the only option left when you've tried everything else.  Thankfully it's very easy to do and Canonical has made a nice tutorial.
Ubuntu 16.04 LTS came out in April of 2016 and the first point release came out in July of that year. After the first point release, an upgrade is generally considered stable and the upgrade process to be clear of significant bugs.  Ubuntu support for LTS releases follows a predictable support schedule for 5 years of community support from the release date.
This gives LTS users 3 full years after the next LTS has been released to upgrade to that release.  The support window is actually so long, that before it expires, the next next LTS has already been released for a year, in this case 20.04.
If you would like an "extension" on your support for Ubuntu 16.04, you can sign up for Extended Security Maintenance (ESM).  The basic level of support gives you access to updates for bug fixes and other security patches. This should be enough to help make the upgrade more successful. You can choose a paid option if you need much more help than that.

A: You haven't posted what you have tried or what error messages you have received. So all I can do is answer the question you have presented. You can absolutely still upgrade from 16.04 to 18.04. I am watching the upgrade right now in a VM after cleanly installing 16.04, apt upgrading packages, rebooting and then running the update manager.
You can also reference this page which gives detailed instructions to upgrade from an EOL version to the next LTS...
https://help.ubuntu.com/community/EOLUpgrades
But as far as I can tell, this shouldn't be necessary right now. If something in the process isn't working, you are going to need to provide more information.


> lockstat times are reported, ammend this.
applied the commit below to tip/core/locking, thanks!
lockstat times are reported, ammend this.
they have two: contentions and [<IP>] symbol.
+The integer part of the time values is in us.


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