Wednesday, 23rd April 2014

Additive genetic effects

Posted on 27. May, 2009 by in Education in Science, Health & Medicine

The effects of alleles at two different loci are additive when their combined effect is equal to the sum of their individual effects. Additive effects are most easily understood in the context of continuous (quantitative) traits. Consider a disease in which two loci, locus 1 with alleles A and a, and locus 1 with alleles B and b, contribute to the phenotype. If each allele represented by a capital letter contributes a score of 2 to the phenotype, and each allele represented by a small letter contributes a score of 3 to the phenotype, then if the alleles at loci 1 and 2 are additive, the resultant pheno-types for the possible genotypes are as follows: AABB – 8; AABb – 9; Aabb – 11; AaBB – 10; AaBb – 10; Aabb – 11; aaBB -10; aaBb – 9; aabb – 12.

Claude Combes – Biologist Tropical Ecology(1935 – …)

Posted on 20. May, 2009 by in Education in Science, Glossary

aa5Name: Claude COMBES, Jean-Pierre

Date and place of birth: 22 July 1935 – Perpignan (France)

Address: Center for Tropical Biology & Ecology & Mediterranean, University of Perpignan, Avenue de Villeneuve, 66860 Perpignan Cedex (France) (more…)

Willis E. Price Lamb, a Hungarian scientist, rewarded

Posted on 19. May, 2009 by in Education in Science, Glossary

a191 Founded in 1998 in honor of Willis E. Lamb, Nobel prize in physics in 1955, this prestigious award is presented annually to researchers providing advanced technology in the field of laser science and quantum optics. (more…)

Acques-Yves Cousteau – Oceanographer(1910-06-11 – 1997-06-25)

Posted on 16. May, 2009 by in Education in Science, Glossary

a111Born on 11 June 1910, in Saint-Andre-de-Cubzac (Gironde).

Jacques-Yves Cousteau was educated in Rouen, Bordeaux, New York, Paris, Ribeauvill  and followed Stanislas college preparation to contest the Naval School (promotion 1930). (more…)

Avdeiko Gennady P – Volcanologist

Posted on 15. May, 2009 by in Education in Science, Glossary

aaa4Avdeiko Gennady P. (born October 29, 1935 in Akmola region, Kazakhstan) – Doctor of geological and mineralogical sciences, professor, winner of the USSR Council of Ministers, chief researcher at the Institute of Volcanology and Seismology of the Russian Academy of Sciences, Professor of Geography, Geology and Geophysics, Kamchatka State University, a member of the editorial board of the journal KRAUNTS Herald. Earth sciences . (more…)

Albert Fert – physicist

Posted on 09. May, 2009 by in Education in Science, Glossary

The CNRS has attributed this year’s “Medaille d’Or” (Golden Medal) to the physicist Albert Fert, professor at the Unitmixte de physique CNRS/Thales (associated with the University  Paris-Sud), for his discovery of Giant Magneto-Resistance (GMR) and his contribution to the development of spin electronics. (more…)

The challenge of wetlands

Posted on 08. May, 2009 by in Education in Science, Environment & Ecology

94Wetlands also have their day. SEO / Bird Life, an association for the study and conservation of birds and nature has taken the World Wetlands Day to launch the campaign “Wings on the Water” (Alas sobre agua) to d improve conservation of these areas. Among the natural preserve, wetlands are not the most emblematic. Their value deserves to be highlighted, these areas are of great biological wealth. The conservation of this natural heritage is of particular importance. (more…)

Advertisements and information in adaptive Street

Posted on 07. May, 2009 by in Education in Science, Experiments & Research, Popular Science

Telecommunications companies have a strong interest in the dissemination of the digital signage and are seeking new technologies to create more value for their forthcoming products. One option is the use of flat screens connected to a computer network to change the advertisements according to the place, time and even those present at the screens.

NTT develops for this purpose with Mitsubishi Estate Co. and Panasonic Corp. a flat screen which includes a facial recognition system to determine the age of a passerby to submit an appropriate advertising. The product has been placed on a wall of the ground floor of the Marunouchi Building in Tokyo since December 2008. A small camera placed above the screen capture images of the faces of passersby. Software quickly identifies their age and their gender in order to select the appropriate advertising for the majority of the population. Facial recognition can discern up to 30 people in a group, which gives a good overview of the crowd, even in a crowded corridor. In addition, the system can determine the number of people, with their age and sex, who watched the screen, thus determining the efficiency of algorithms. For now the product in place does no advertising. If test results are conclusive, a new version will be resumed at the station “Haneda Airport” fervier beginning in 2009 with real ads.

For its part, Hitachi Ltd. works with TV Tokyo Corp. on a system of interactive screens that are passers-specific information on where they are located. Each panel retransmits documentaries on the region as well as TV programs with information about the surroundings. By touching the screen, people can bring up information about restaurants and products that were introduced in previous videos. Thus, users can obtain more information on the topics that have aroused their interest.

The standardization of these methods of transmitting information to digital signage is done by the “Digital Signage Consortium was created in 2007 by a group of 126 telecommunication companies, advertising agencies and other companies sharing the same interest for these technologies.


Enterprises run by universities forced to change their name

Posted on 07. May, 2009 by in Education in Science, Popular Science

119Companies managed by higher education institutions which bear the names of these institutions will be forced to change its name before 2010 according to the Ministry of Education. For example, businesses named “Fudan Fuhua and Tongji Technology” will have to remove their names from the names of Fudan and Tongji universities, reported China Economic Net. The leaders of universities will also exit the positions they occupy in these companies during the first half of this year. (more…)

Nanotubes and upholsterers: how to explain to the general public the growth of carbon nanotubes?

Posted on 02. May, 2009 by in Education in Science, Educational Resources, Experiments & Research, Nanotechnology, News

09 Boris Yakobson, professor in the Department of Mechanical Engineering from Rice University in Houston finishes to explain his latest discovery: he thought he understood how the growth of carbon nanotubes. His idea appears in an article in the latest issue of Competes Rends of all-American Academy of Sciences (Proceedings of the Academy of Science, or PNAS), which is also the cover. Quiz: if you search on Google for information on the mechanisms of growth of carbon nanotubes, which keywords should you use? Answer: “tapestry” ie “tapestry.” (more…)

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