Resource Mobilisation and Obstacles To Development in Indian Farming     

T. Bergmann 《Asia Pacific viewpoint》1973,14(1):1-22

  相似文献   

Advances in Tissue Culture and Progress Towards Genetic Transformation of Cereals   总被引：1，自引：0，他引：1  

H. Lörz    Elke  Göbel P. Brown 《Plant Breeding》1988,100(1):1-25

  相似文献   

Synthesis of the sednet work package 5 outcomes     

Susanne Heise  Sabine E. Apitz  Marc Babut  Helge Bergmann  Piet den Besten  Gerald J. Ellen  Jan Joziasse  Alexandra Katsiri  Vera Maaß  Amy Oen  Adriaan Slob  Sue White 《Journal of Soils and Sediments》2004,4(4):233-235

  相似文献   

SYNTHESIS AND DEGRADATION OF PROTEINS IN THE LABORATORY AND IN METABOLISM     

Bergmann M 《Science (New York, N.Y.)》1934,79(2055):439-445

  相似文献   

A bank of Mammalian DNA fragments     

Bergmann FH 《Science (New York, N.Y.)》1976,194(4271):1226

  相似文献   

The structure of the first coordination shell in liquid water   总被引：1，自引：0，他引：1  

Wernet P  Nordlund D  Bergmann U  Cavalleri M  Odelius M  Ogasawara H  Näslund LA  Hirsch TK  Ojamäe L  Glatzel P  Pettersson LG  Nilsson A 《Science (New York, N.Y.)》2004,304(5673):995-999

X-ray absorption spectroscopy and x-ray Raman scattering were used to probe the molecular arrangement in the first coordination shell of liquid water. The local structure is characterized by comparison with bulk and surface of ordinary hexagonal ice Ih and with calculated spectra. Most molecules in liquid water are in two hydrogen-bonded configurations with one strong donor and one strong acceptor hydrogen bond in contrast to the four hydrogen-bonded tetrahedral structure in ice. Upon heating from 25 degrees C to 90 degrees C, 5 to 10% of the molecules change from tetrahedral environments to two hydrogen-bonded configurations. Our findings are consistent with neutron and x-ray diffraction data, and combining the results sets a strong limit for possible local structure distributions in liquid water. Serious discrepancies with structures based on current molecular dynamics simulations are observed.  相似文献   

CORAL-REEFS AND THE FORMATION OF PETROLEUM     

Bergmann W  Lester D 《Science (New York, N.Y.)》1940,92(2394):452-453

  相似文献   

Evaluation of initial plasma lactate values as a predictor of gastric necrosis and initial and subsequent plasma lactate values as a predictor of survival in dogs with gastric dilatation‐volvulus: 84 dogs (2003–2007)     

Tiffany I. Green DVM  Caroline C. Tonozzi DVM  DACVECC  Rebecca Kirby DVM  DACVIM  DACVECC  Elke Rudloff DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2011,21(1):36-44

Objective – To test whether an initial plasma lactate≥6.0 mmol/L is associated with the presence of macroscopic gastric wall necrosis and overall survival in dogs presenting with gastric dilatation‐volvulus (GDV). Additionally, if no association was identified we sought to identify a different predictive initial plasma lactate concentration and to examine whether serial plasma lactate concentrations provide better prediction of survival. Design – Retrospective study over a 5‐year period (2003–2007). Setting – Urban private referral small animal teaching hospital. Animals – Eighty‐four client‐owned dogs with a diagnosis of GDV and plasma lactate measurements. Interventions – None. Measurements and Main Results – There was no statistically significant relationship found between survival and the presence of macroscopic gastric wall necrosis with the initial plasma lactate≥6 mmol/L. There was a significant relationship between the initial plasma lactate >2.9 mmol/L for predicting necrosis and <4.1 mmol/L for predicting survival to discharge. Forty dogs that had an increased initial plasma lactate (>2.5 mmol/L) also had a subsequent plasma lactate measured within 12 hours of presentation, with 37/40 dogs surviving and 70% of these surviving dogs having the subsequent lactate decrease by≥50% within 12 hours. The 3/40 that died failed to decrease their plasma lactate by≥50% from the initial blood lactate. Conclusion – The results of this study indicate that an initial presenting plasma lactate concentration≥6.0 mmol/L is not predictive of macroscopic gastric wall necrosis or survival in dogs presenting with GDV. A decrease in plasma lactate concentrations≥50% within 12 hours may be a good indicator for survival. Limitations to the study include its retrospective nature, the small number of patients, and the number of dogs that were euthanized rather than allowed to progress to a natural outcome.  相似文献   

Tequila authenticity assessment by headspace SPME-HRGC-IRMS analysis of 13C/12C and 18O/16O ratios of ethanol     

Aguilar-Cisneros BO  López MG  Richling E  Heckel F  Schreier P 《Journal of agricultural and food chemistry》2002,50(26):7520-7523

By use of headspace SPME sampling and a PLOT column, on-line capillary gas chromatography-isotope ratio mass spectrometry was employed in the combustion (C) and the pyrolysis (P) modes (HRGC-C/P-IRMS) to determine the delta(13)C(VPDB) and delta(18)O(VSMOW) values of ethanol in authentic (n = 14) and commercial tequila samples (n = 15) as well as a number of other spirits (n = 23). Whereas with delta(13)C(VPDB) values ranging from -12.1 to -13.2 per thousand and from -12.5 to -14.8 per thousand similar variations were found for 100% agave and mixed tequilas, respectively, the delta(18)O(VSMOW) data differed slightly within these categories: ranges from +22.1 to +22.8 per thousand and +20.8 to +21.7 per thousand were determined for both the authentic 100% agave and mixed products, respectively. The data recorded for commercial tequilas were less homogeneous; delta(13)C(VPDB) data from -10.6 to -13.9 per thousand and delta(18)O(VSMOW) values from +15.5 to +22.7 per thousand were determined in tequilas of both categories. Owing to overlapping data, attempts to differentiate between white, rested, and aged tequilas within each of the two categories failed. In addition, discrimination of tequila samples from other spirits by means of delta(13)C(VPDB) and delta(18)O(VSMOW) data of ethanol was restricted to the products originating from C(3) as well as C(4)/CAM raw materials.  相似文献   

Der Gehalt einiger Purin- und Pyrimidin-Verbindungen und Nukleinsäuren in Blättern von Gerste-Pflanzen verschiedener Sorten in Abhängigkeit vom Alter der Pflanzen     

Harry Bergmann 《Genetic Resources and Crop Evolution》1972,20(1):327-349

  相似文献