Tag: מדע

. Two international teams of physicists, including RIKEN researchers, have trapped and manipulated  atoms made out of antimatter, in milestone experiments that should help to reveal why the substance is so rare in our Universe. . Since its existence was first predicted by physicist Paul Dirac in 1931, antimatter has become an increasingly common sight. …

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. The genes that regulate the process called photoperiodism—the seasonal responses induced in organisms by changing day length—have been found by researchers from the RIKEN Center for Developmental Biology, Kobe, and Kinki University, Osaka. Led by Koh-hei Masumoto and Hiroki R. Ueda from RIKEN, the researchers also discovered how these genes can be activated within …

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. For 60 years, scientists have puzzled over the possibility of a hepatic osmoreceptor that influences blood pressure regulation. Now, researchers of the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, the Experimental and Clinical Research Center (ECRC) of the MDC and Charité and the Hannover Medical School (MHH) appear to have made a breakthrough …

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. The degree of twisting of natural helical structures, such as the DNA double-helix, plays an essential role in many important biological functions. Because of their twisted architecture, artificial helices can facilitate the separation and the synthesis of chiral compounds—asymmetric molecules that cannot be superimposed with their mirror image. New, small spring-like polymer chains, or …

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. A new form of self-assembling polymer film that bends and stretches when hit by light is pointing the way to a new family of functional materials. This flexing film is the first material to have been made by coaxing complex molecules to form large-scale, highly ordered three dimensional arrays—a discovery that could change the …

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. Plants have been cultivated and studied from the earliest days of human civilization, yet much remains unknown about them. A good example is the mechanism by which the size of plant cells is determined. Keiko Sugimoto, leader of the Cell Function Research Unit in RIKEN’s Plant Science Center, in working to elucidate this mechanism …

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