LUDWIG KALLIR     

Gross ET 《Science (New York, N.Y.)》1943,97(2527):502-503

  相似文献   

Peer review system     

J Gross 《Science (New York, N.Y.)》1971,173(992):106-107

  相似文献   

Spatially Resolved Observation of Supercurrents Across Grain Boundaries in YBaCuO Films     

Mannhart J  Gross R  Hipler K  Huebener RP  Tsuei CC  Dimos D  Chaudhari P 《Science (New York, N.Y.)》1989,245(4920):839-841

Spatially resolved resistivity measurements of current transport across individual grain boundaries have been made on superconducting YBa(2)Cu(3)O(7). These experiments were done by low-temperature scanning electron microscopy with a resolution of 1 to 2 micrometers, and they show directly the limitation of the critical current density caused by grain boundaries in YBa(2)Cu(3)O(7). Furthermore, complex spatial patterns of the current transport across grain boundaries were observed. These patterns reflect self-excited resonances of the grain boundaries and are closely correlated to the unexplained "sub-gap structure" in the current-voltage characteristics of polycrystalline YBa(2)Cu(3)O(7).  相似文献   

Biodegradable polymers for the environment   总被引：1，自引：0，他引：1  

Gross RA  Kalra B 《Science (New York, N.Y.)》2002,297(5582):803-807

Biodegradable polymers are designed to degrade upon disposal by the action of living organisms. Extraordinary progress has been made in the development of practical processes and products from polymers such as starch, cellulose, and lactic acid. The need to create alternative biodegradable water-soluble polymers for down-the-drain products such as detergents and cosmetics has taken on increasing importance. Consumers have, however, thus far attached little or no added value to the property of biodegradability, forcing industry to compete head-to-head on a cost-performance basis with existing familiar products. In addition, no suitable infrastructure for the disposal of biodegradable materials exists as yet.  相似文献   

Mutations in dynein link motor neuron degeneration to defects in retrograde transport     

Hafezparast M  Klocke R  Ruhrberg C  Marquardt A  Ahmad-Annuar A  Bowen S  Lalli G  Witherden AS  Hummerich H  Nicholson S  Morgan PJ  Oozageer R  Priestley JV  Averill S  King VR  Ball S  Peters J  Toda T  Yamamoto A  Hiraoka Y  Augustin M  Korthaus D  Wattler S  Wabnitz P  Dickneite C  Lampel S  Boehme F  Peraus G  Popp A  Rudelius M  Schlegel J  Fuchs H  Hrabe de Angelis M  Schiavo G  Shima DT  Russ AP  Stumm G  Martin JE  Fisher EM 《Science (New York, N.Y.)》2003,300(5620):808-812

Degenerative disorders of motor neurons include a range of progressive fatal diseases such as amyotrophic lateral sclerosis (ALS), spinal-bulbar muscular atrophy (SBMA), and spinal muscular atrophy (SMA). Although the causative genetic alterations are known for some cases, the molecular basis of many SMA and SBMA-like syndromes and most ALS cases is unknown. Here we show that missense point mutations in the cytoplasmic dynein heavy chain result in progressive motor neuron degeneration in heterozygous mice, and in homozygotes this is accompanied by the formation of Lewy-like inclusion bodies, thus resembling key features of human pathology. These mutations exclusively perturb neuron-specific functions of dynein.  相似文献   

Chemistry. Chemicals from biomass     

Dodds DR  Gross RA 《Science (New York, N.Y.)》2007,318(5854):1250-1251

  相似文献   

The paradox of radiation's effects     

Facius R 《Science (New York, N.Y.)》2005,310(5752):1279

  相似文献   

Influence of Anabolic Steroids on Uptake of Alpha-Aminoisobutyric Acid by Levator Ani Muscle     

Metcalf W  Gross E 《Science (New York, N.Y.)》1960,132(3418):41-42

Two representative anabolicsteroids caused an increase in the uptake of alpha-aminoisobutyric acid-1-C(14) in the levator ani muscle of rats. The distribution ratio between that muscle and the plasma was increased fourfold by the administration of a synthetic anabolic steroid and twofold by administration of testosterone propionate. The determination of this increase may serve as an indicator for the myotrophic effect of anabolic steroids.  相似文献   

Minimal machinery of RNA polymerase holoenzyme sufficient for promoter melting     

Young BA  Gruber TM  Gross CA 《Science (New York, N.Y.)》2004,303(5662):1382-1384

  相似文献   

Observation of correlated particle-hole pairs and string order in low-dimensional Mott insulators     

Endres M  Cheneau M  Fukuhara T  Weitenberg C  Schauss P  Gross C  Mazza L  Bañuls MC  Pollet L  Bloch I  Kuhr S 《Science (New York, N.Y.)》2011,334(6053):200-203

Quantum phases of matter are characterized by the underlying correlations of the many-body system. Although this is typically captured by a local order parameter, it has been shown that a broad class of many-body systems possesses a hidden nonlocal order. In the case of bosonic Mott insulators, the ground state properties are governed by quantum fluctuations in the form of correlated particle-hole pairs that lead to the emergence of a nonlocal string order in one dimension. By using high-resolution imaging of low-dimensional quantum gases in an optical lattice, we directly detect these pairs with single-site and single-particle sensitivity and observe string order in the one-dimensional case.  相似文献