Monthly Archive: July 2015

Bowling Green State University

The first of April on a daily web site of the journal Science (ScienceNow) it was reported that a group of geneticists from the U.S. Institute Leychen in New Jersey have found a gene responsible for a sense of humor in humans. The gene was named Haha-1. By Scientists say they have found a gene in mice, albeit in the off position. When the researchers 'included' Haha-1 in the three experimental mice, one of them started to publish a thin squeak when she showed a picture with the cat, which crushed the anvil, – she seemed to have laughed at his eternal enemy, got into a nasty mess. Scientists hope that their future discovery will lead to a cure that will help instill sense of humor to people who have it from birth do not. This message was clearly an April Fool's joke. Does not exist in the world (more precisely, the Internet) Institute named Leychen, unknown Horace Epstein, who heads a group of geneticists from the Institute, has been found as the magazine Genes and Behavior, which supposedly should appear in an article on the discovery of the gene responsible for a sense of humor, to the same article in ScienceNow signed by a man named Grim (Grim), and humorously flippant tone of the note did not have to much confidence … But there is a professor Dzhaak Panksepp, an expert on animal behavior, there is a Bowling Green State University, Ohio, where he works, There, finally, the journal Science, where he was the first of April of the same published his article on the nature of laughter.

University Tiradentes

The activation of the seeds for the light is on to a called pigment system fitocrmo. This pigment if finds in all the superior plants, that when absorbing light in one definitive change, wave length of structure biochemist and allows, or not, fotomorfogentica reply (BORGES & RENO, 1993). The light is necessary for the germination of the seeds of some species. However, the sensitivity of the seeds to the effect of the light varies in agreement with the quality, the luminous intensity and the time of irradiation, as well as with the period and the temperature during the process of embebio (TOOLE, 1973; LABOURIAL, 1983). In reply the light, the species can be classified in positive fotoblsticas, that is, those that need light to germinate; negative fotoblsticas, that better germinate in the absence of light or neutral fotoblsticas that are insensitive to the light (STEFANELLO et al., 2006). Being thus, the present work had as objective to verify the influence of the quality of the light in the germination of seed of Zea maize MATERIAL mays L. AND METHODS the work was lead in the Laboratory of Botany of the University Tiradentes- UNIT, during the August months the November of 2009.

Seeds of maize had been used (Zea mays L.), proceeding from the city of Jequi in the southwest of the Bahia the 365 km of Salvador; kept in plastic bag and stored in refrigerator 18o C, during the accomplishment of the experiments. 800 treated seeds and with one had been selected solution of hipoclorito of sodium 3%, during 20 minutes for after that being washed with distilled water perfazendo the total of three lauderings for withdrawal of the excess of chlorine. The method was proceeded from density with distilled water eliminating the seeds that were floating. The experimental delineation block-type was entirely casualisados with five treatments and four repetitions.