Black hole merger (PL: Koalescencja czarnych dziur)
Source:  Universe@Home
mercredi 20 avril 2016 14:51

Wersja polskojęzyczna poniżej

You have already heard about the discovery of gravitational waves from a merger
of double black hole. In our project, specifically in the BHspin application, we
were also working on the evolution of such systems. If you are interested in the
way how they form and evolve, we prepared for you the description of the evolution of
a typical system, which results in the emission of gravitational waves like these
from the recent observations. You may found the text, together with a nice plot,
in the forum's science section. Please enjoy!

Prawdopodobnie wiecie już o odkryciu fal grawitacyjnych z koalescencji czarnych
dziur. W naszym projekcie, a konkretnie za pośrednictwem aplikacji BHspin,
analizowaliśmy ewolucję takich systemów. Jeżeli jesteście zainteresowani tym jak
podwójne czarne dziury się tworzą, to przygotowaliśmy dla was opis
popularnonaukowy jednego z typowych systemów. Jego ewolucja prowadzi do emisji
fali grawitacyjnej jak ta z niedawnych obserwacji. Tekst razem z poglądowym
rysunkiem można znaleźć na forum w dziale Science. Zapraszamy!

"Donating my unused computing power can contribute to the public good."
Source:  World Community Grid News and Updates
mardi 19 avril 2016 21:05

A World Community Grid volunteer tells us why he donates his unused computing power to research and how he recruits new volunteers.

12-digit factor of P2203 has now been found by the project...
Source:  WEP-M+2 Project
mardi 19 avril 2016 12:52

...86474 times

Project Configuration Update
Source:  vLHCathome-dev
lundi 18 avril 2016 22:38

As we now have multiple applications, some of you have requested that we remove the restriction that limits the number running tasks per host to one. This restriction has was put in place so as not to overload machines while developing. As everyone in this development project is (or should be) an advanced user, we assume that everyone knows how to adjust their preferences to limit tasks on the client if needed. This update will be done tomorrow morning at around 10am CET (8am GMT, 1461052800 UTC).

Raising Risk Awareness – new project under WWA
lundi 18 avril 2016 15:41

To extend the reach of and scope of our World Weather Attribution project we are engaging in a new project with CDKN:

Raising Risk Awareness – Using climate science to inform post disaster Policy & practice in developing countries

Today we understand the impact of human activities on global mean temperature very well; however, high-impact extreme weather events are where the socio-economic impacts of a changing climate manifest itself and where our understanding is more in its infancy but nevertheless developing at pace. Based on this and recent advances in scientific capabilities the World Climate Research Programme identified climate extremes as one of its ‘grand challenges’ and particularly the pressing need to understand these extremes to improve the prediction and attribution of extreme weather events, and ultimately provide a more comprehensive assessment of risk from anthropogenic climate change. This coupled with the fact that such events are not selective and often hit those countries that are least well equipped to deal with their impacts and set these countries back years in terms of development has been the motivation behind a new partnership between the World Weather Attribution (WWA) Initiative and the Climate & Development Knowledge Network (CDKN). The Raising Risk Awareness project seeks to assess the contribution of anthropogenic climate change and other external drivers (e.g.”El Niño”) to the occurrence of extreme weather events in developing countries in East Africa and South East Asia, and identify how such information could help to bridge the science-communications policy gap, and enable these countries and communities to become more climate resilient. Whilst this project will not seek to attribute the impacts of such events, it will seek to understand the existing vulnerability and exposure of these countries to such impacts to further strengthen the evidence base to inform disaster risk management and resilience efforts.

In a warming world, it is increasingly important for policy development, decision-making and investments at the national and local scale to take into account changing patterns of extreme weather and climate-related events. The basic physics of how the climate system works and the impact of increasing greenhouse gas emissions on the mean climate are generally well understood and well covered in the literature. However there is still much to be learned about how a changing climate will affect the frequency and severity of extreme weather events in particular locations. As a result, those who are not aware of such climate change signals and do not integrate this information into decision-making, risk building back communities that are not resilient to future extreme weather events. Conversely, those who point to climate change without a robust underlying analysis may overplay the connection, and in doing so risk undermining political capital, weakening public debate, and mal-adapting.

The Science
The detection and attribution of long-term trends in observed records (mainly temperature) has been routinely carried out at least since the second Intergovernmental Panel on Climate Change (IPCC) report in 1995. Extreme weather attribution is however an emerging and rapidly advancing science, and there is increasing capacity to estimate the change in magnitude and occurrence of specific types of extreme events in a warming world. The significance of attributing the role of climate change in an extreme event comes from situating that hazard in the context of long term climate change for a country or region, and thus creating a robust narrative for decision-makers and the public around the degree to which a disaster of this type will represent the ‘new normal’. Such systematic and rapid scientific analysis is the focus of the World Weather Attribution (WWA) Initiative. With a robust evidence base and the right protocols in place it is now possible to run near real-time extreme weather event attribution within days of an event striking. While not all extreme events are becoming more likely but some less likely and for others the risk has not changed identifying those events where the risk has changed dramatically is crucial to build resilience. Event attribution typically addresses the ‘extreme’ in the weather event, but the impact of an extreme weather event also depends on vulnerability and exposure. Indeed the vulnerability and exposure of people and locations can sometimes be more important than climate change in determining future trends in risk. Though this project will not seek to attribute impacts of such events, it will situate the analysis in the existing vulnerability and exposure context, to further the strengthen the evidence base to inform decision-making. These scientific advances notwithstanding, new developments and basic climate science is often not communicated in a way that can be easily understood by laypeople or used by decision-makers. It is imperative the science is clearly presented to inform the media and enable them to fulfil their role as information brokers, and to support decision-making by communities, planners, and policy-makers, especially during the window of opportunity in the aftermath of disaster when important decisions are beingtaken on rebuilding efforts including around climate resilience and risk reductions measures.

Developing countries
Developing countries are some of the most vulnerable to extreme weather events, but lack timely and robust evidence to understand current and future threats from such hazards and thus to prepare for and respond to their impacts. A range of developing country stakeholders are demanding information about the role of climate change in individual extreme weather events, as evidenced by the following:

  • A growing number of projects seeking to understand climate variability and how to integrate changing risk into development and resilience strategies such as Building Resilience and Adaptation to Climate Extremes and Disasters (BRACED), Future Climate for Africa (FCFA) and Partners for Resilience;
  • Climate attribution questions are amongst those most commonly asked of the International Federation of Red Cross and the International Research Institute (IFRC-IRI) help desk during major disasters; and
  • A rising number of requests for extreme weather attribution information coming from governments, NGOs, and media in the wake of extreme weather events.

The Project
The Raising Risk Awareness project seeks to assess the role of human-induced climate change in the risk of extreme weather events in developing countries and identify how such scientific evidence could help to bridge the science-communications-policy gap, and enable these countries and communities to become more resilient in a warming world. This project will initially be piloted in East Africa and South East Asia – two disaster prone regions of the world. The project will be delivered through a partnership between the WWA Initiative and CDKN, bringing together climate science, development, policy, planning and communications expertise across a range of academic, research, government, non-government and civil society organisations from developed and developing countries. This is the first time this type of analysis is being piloted specifically to inform developing country efforts in the aftermath of an extreme weather event. As such engaging southern partners will be vital to the successful delivery of this project and critical for building local capacity to assess the true risks from extreme events, addressing knowledge gaps and ensuring climate information is communicated effectively to key audiences. The pilot of Raising Risk Awareness project will run until March 2017 and will generate a suite of tools and knowledge products, and run a series of national and regional events to help civil society, communities, practitioners, media and decision-makers better understand and prepare for the current and future risks from extreme weather events.

Article about distribution of Breakthrough data.
Source:  SETI@Home
vendredi 15 avril 2016 02:01 has published an article about our distribution of Breakthrough Listen data.

Nbody Release 1.60
Source:  Milkyway@home
jeudi 14 avril 2016 22:39

Hey All,

I just released a new version of Nbody, 1.60. In this version we completely changed the cost function. This is a function that is used in the histogram comparison algorithm. We discovered that the old cost function, which was supposed to allow us to retain the mass data in the normalized histograms, did not account properly for the amount of mass.

This was not a bug, but rather a change in the science behind the algorithm. We would not have rethought the algorithm without the results from MW@H.

As always, if there is any problem, let me know.

Thank you all,

Version 2.30 released & new Project available
Source:  POEM@HOME
mercredi 13 avril 2016 14:43

Finally the POEM++ Version 2.30 is live.
The test phase a few weeks ago ended successfully, but if you encounter any problems with the new release, please let me know.

Along with the update we have started a new
Peptide project. You can get some information on the linked project page, a visualization of the simulation process will follow.

Die POEM++ Version 2.30 ist jetzt verfügbar.
Die Testperiode vor einigen Wochen war erfolgreich, falls es aber trotzdem Probleme mit dem neuen Release geben sollte, lasst es mich bitte wissen.

Einhergehend mit dem Update haben wir ein neues Peptidprojekt gestartet. Auf der verlinkten Seite gibt es einige Informationen, eine Visualisierung des Simulationsprozesses wird noch folgen.

Breakthrough Listen data now flowing.
Source:  SETI@Home
mardi 12 avril 2016 20:04

Happy Yuri's Night #55, the 55th anniversary of Yuri Gagarin's historic first space flight on April 12, 1961.

In celebration, we're starting distribution of Breakthrough Listen data from the Green Bank Telescope today. No intervention is necessary on your part. The main difference you will see is a change in your screen saver graphics, if you have them running. We'll still be distributing Arecibo data as well, so that won't change.

The Breakthrough Initiative is also distributing raw data in multiple formats, so you can write your own analysis code if you'd like.

You can read about it in this press release.

Uncovering Genome Mysteries Hopes to Shed Light on Zika and Other Viruses
Source:  World Community Grid News and Updates
mardi 12 avril 2016 13:13

Uncovering Genome Mysteries is analyzing protein sequences from Zika and related viruses in order to help scientists better understand them. Dr. Wim Degrave, who is deeply involved in Brazil's response to the Zika crisis, gave us this update to describe how these analyses fit into the larger work of Uncovering Genome Mysteries, and how the project could help scientists develop new tools to diagnose and treat Zika virus and similar diseases.


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