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Recent News and Articles on the Keywords: key + researchers + model  Related to the article below (Last Update: 8/4/2008)


PhysOrg.com
Northeastern Plays Key Role in DZero International Physics ...
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Newswise ? Darien Wood, Ph.D., Associate Professor of Physics at Northeastern University, and other researchers from Northeastern have played integral roles ...
Tevatron Experiments Double-team Higgs Boson Science Daily (press release)
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Why The Slow Paced World Could Make It Difficult To Catch A Ball ...
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Free Job Alert
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Science's awesome challenge: Creating artificial life
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A model "protocell" assembled by artificial life researcher Jack Szostak at the Howard Hughes Medical Institute in Bethesda, Maryland. ...OTC:ALIF
IBM Invests Nearly $400 Million on Cloud Computing Centers in US ...
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The company recently opened another supercomputer center in India, also doing cloud research. ?The Hadoop group in Yahoo is the key contributor to the ...
Toward more efficient fuel cells?
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A very short report from the American Association for the Advancement of Science (AAAS), ?A cool fuel cell,? says that Spanish researchers have developed a ...
A Black Swan In The Money Market
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But according to the account of the April meeting, Angelos said HP planned to lay off as many as 300 workers, shutter a key production line and send its ...HPQ
Source: Google News

A conceptual model of service quality and its implications for future research -
A Parasuraman, VA Zeithaml, LL Berry? - Journal of Marketing, 1985 - JSTOR
... A key challenge for researchers is to ... and valid measures of these gaps will be necessary
for empirically testing the propositions implied by the model. ...

[BOOK] Understanding and facilitating adult learning -
S Brookfield - 1986 - tcrecord.org
... principles through a critical review of current key research in adult learner
characteristics, self-directed learning, alternative models of andragogy, and the ...

Conducting interorganizational research using key informants -
N Kumar, LW Stern, JC Anderson - Academy of Management Journal, 1993 - JSTOR
... regarding the appropriate use of key informants ... it is surprising how seldom researchers
formally conduct ... A researcher who is operating under severe constraints ...

Environments for Entrepreneurship Development: Key Dimensions and Research Implications.
DR Gnyawali, DS Fogel - Entrepreneurship: Theory and Practice, 1994 - questia.com
... A key role of the entrepreneurial environment is to help entrepreneurs develop both
propensity to ... THE INTEGRATED MODEL AND ITS IMPLICATIONS FOR RESEARCH. ...

[BOOK] Intelligent user interfaces: an introduction -
M Maybury - 1998 - ACM New York, NY, USA
... Key multimedia gen- eration tasks include managing ... Model-based Interfaces Given the
complexity, associated ... quired to build interfaces, researchers have focused ...

Statistical Analysis With Missing Data -
RJA Little, DB Rubin - Technometrics, 2003 - ingentaconnect.com
... as well as hypothesis testing and model diagnostics ... as a good reference for time
series researchers interested in understanding the key theoretical concepts ...

Measuring competence? Exploring firm effects in pharmaceutical research -
R Henderson, I Cockburn - Strategic Management Journal, 1994 - JSTOR
... makes key resource decisions GLOBAL: Worldwide research managed as ... ln(Total firm
stock of research) SCOPE No. ... by testing Hypotheses 3 and 4. Model 3 introduces ...

[PS] On formal models for secure key exchange (version 4) -
V Shoup - IACR eprint archive Report 1999 - eprint.iacr.org
On Formal Models for Secure Key Exchange ... Victor Shoup IBM Zurich Research Lab, Saumerstr. ...
A new formal security model for session key exchange protocols is ...

Entrepreneurship: Past research and future challenges -
MB Low, IC MacMillan - Journal of Management, 1988 - Springer
... to come to individuals at key informational loci ... it is a dynamic model that explicitly ...
This research raises an important possibility: organizational births may ...

Single-loop and double-loop models in research on decision making -
C Argyris - Administrative Science Quarterly, 1976 - JSTOR
... Our research would raise some doubts because some of the key variables that ... But there
is nothing in George's model to suggest that presently such ...

Source: Google Scholar
 
 

Researchers In Montreal And The US Create Model Of Key Immune-System Component

Article Date: 14 Dec 2006 - 3:00 PST
Researchers at Universite de Montreal, working with teams at Massachusetts General Hospital and Johns Hopkins University, have made a major breakthrough in understanding an essential aspect of the immune system. For the first time, using a systems biology approach, they have developed a model that facilitates the study of the function of the phagosome. The phagosome is the organelle responsible for the destruction of infectious pathogens that cause such diseases as tuberculosis and salmonellosis, as well as pathogens that could be used in bioterrorism. The results of their study were published this week in the prestigious journal Nature.

Infectious diseases remain one of the main causes of death in the world, and the phenomenon of antibiotic resistant bacteria worsens the situation each year. Thanks to the model developed by teams led by Michel Desjardins of the Department of Pathology and Cellular Biology at Universite de Montreal, Drs Lynda Stuart and Alan Ezekowitz at the Massachusetts General Hospital, a Harvard Medical School teaching hospital, and Dr Joel Bader of the Biomedical Engineering Laboratory at Johns Hopkins University, it will now be possible to better understand the complex interactions that govern the functioning of the phagosome.

Article continues below and (thank you)
 
"We have taken a crucial step here," Prof. Desjardins explains. "We can now reach a better understanding of the molecular processes involved in infections by using a global approach based on proteomics and genomics. This approach will expedite development of therapies and the production of new vaccines. The major investments made in recent years in proteomics research in Qu�bec and Canada have enabled us to pool our resources and apply promising new approaches like systems biology."

As Dr. Stuart explains, "Phagocytes are immune system cells that internalize, kill, and digest bacteria within an intracellular compartment called the phagosome, a major battleground in the host-pathogen conflict. Despite its important role in our normal immune defense, the organization and functioning of the phagosome are poorly understood."

By analyzing a cell line of phagocytes from the Drosophila fruit fly, a common biological model, the researchers identified more than 600 proteins that may be involved with the operation of the phagosome. They then constructed a detailed map of the interactions among these proteins and were able to identify previously unknown regulators of phagocytosis and potential molecular pathways of immune defense.

"Phagocytosis is very similar in many organisms, so we are able to learn about this process by studying it in simpler organisms, such as Drosophila," Dr. Stuart continues. "By combining classic cell biology with the newer approaches of proteomics, functional genomics and computational analysis, we have generated a model of that we believe will facilitate our understanding of infectious diseases and expedite the development of new strategies to fight pathogens."

"It is exciting to see that systems biology has the power to unravel how the phagosome works by revealing the intricately woven roles of all the molecules involved in killing infectious agents," says Joel Bader, Ph.D., Assistant Professor of Biomedical Engineering and a member of the High-Throughput Biology Center at Hopkins.

According to Paul L'Archeveque, President and CEO of Genome Quebec, this significant new advance is a further illustration of the tremendous talent of Quebec scientists and the precision that can be achieved by genomics and proteomics, two approaches that yield concrete results. "I would like to congratulate Dr. Desjardins and his team. Their very important breakthrough further confirms the wisdom of the Quebec government's decision to invest in innovation, in this case, genomics, an economic priority for the coming years."

Martin Godbout, President and CEO of Genome Canada expressed his satisfaction to see this proteomics research be widely released. "Peers recognition is very important to scientists and I congratulate Dr. Desjardins and his team for this research and its publication in Nature, a prestigious achievement that will benefit all of Canada. It is our mandate to bring Canada to the forefront of genomics and proteomics research."

"The work of Professor Desjardins, his team, and their American colleagues demonstrates the importance of using a combination of innovative techniques," said Dr. Bhagirath Singh, Scientific Director of the CIHR Institute of Infection and Immunity. "Their research findings, applied to the body's ability to get rid of infections, will help develop new treatments and approaches for the prevention of diseases such as tuberculosis."

###

Professor Desjardins's research was funded by Genome Quebec, Genome Canada, and the Canada Institutes of Health Research (CIHR). Professor Desjardins holds the Canada Research Chair in Cellular Microbiology, and in this project secured the collaboration of the Montreal Proteomics Network based at McGill University.

The Massachusetts General Hospital researchers were supported by grants from the Wellcome Trust and the U.S. National Institutes of Health.

About Universite de Montreal: http://www.umontreal.ca/

About Massachusetts General Hospital : http://www.massgeneral.org/

About the High Throughput Biology Center at Johns Hopkins : http://www.hopkinsmedicine.org/ibbs/research/HitCenter/index.html

About Genome Quebec: http://www.genomequebec.com/

About CIHR: http://www.irsc-cihr.ca/
Contact: Sophie Langlois University of Montreal
 
 
 
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