Landscape potential for pollen provisioning for beneficial insects favours biological control in crop fields     

Aude Vialatte  Noëlline Tsafack  Diab Al Hassan  Rémi Duflot  Manuel Plantegenest  Annie Ouin  Johanna Villenave-Chasset  Aude Ernoult 《Landscape Ecology》2017,32(3):465-480

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Clinical evaluation of a single daily dose of phenylpropanolamine in the treatment of urethral sphincter mechanism incompetence in the bitch     

Claeys S  Rustichelli F  Noël S  Hamaide A 《The Canadian veterinary journal. La revue veterinaire canadienne》2011,52(5):501-505

The objective of this retrospective study was to determine the efficacy of a single daily oral dose of phenylpropanolamine (PPA) in the treatment of urethral sphincter mechanism incompetence (USMI) in bitches. Nine bitches diagnosed with USMI were treated with a single daily dose [1.5 mg/kg body weight (BW)] of PPA for at least 1 month. Urethral pressure profiles (UPP) were performed in 7 dogs before treatment and repeated in 4 of them after treatment. Treatment with PPA resulted in long-term continence in 8/9 bitches. One dog did not respond to PPA and was treated surgically later. Recheck UPPs showed a significant increase in maximal urethral closure pressure in the 4 bitches after treatment with PPA compared to before treatment. In conclusion, long-term continence can be achieved in bitches affected with USMI after administration of a single daily dose of PPA (1.5 mg/kg BW).  相似文献   

A NEW HYDROGEN ELECTRODE AND APPARATUS FOR THE DETERMINATION OF PH     

Du Noüy PL 《Science (New York, N.Y.)》1932,75(1955):643-644

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A phylogenetic analysis by multilocus enzyme electrophoresis and multiprimer random amplified polymorphic DNA fingerprinting of the Leishmania genome project Friedlin reference strain.     

A L Ba?uls  S Brisse  I Sidibé  S No?l  M Tibayrenc 《Folia parasitologica》1999,46(1):10-14

We have assessed the phylogenetic status of the Leishmania genome project Friedlin reference strain by MLEE and multiprimer RAPD including a set of 9 stocks representative of the main Leishmania species and of the whole genetic diversity of the Leishmania genus. To our knowledge, the detailed genetic characterization of the Friedlin strain has never been published before. As previously recorded (Tibayrenc et al. 1993), MLEE and RAPD data gave congruent phylogenetic results. The Friedlin reference strain was definitely attributed to Leishmania (Leishmania) major Yakimoff et Schokhor, 1914. Five specific RAPD patterns made it possible to distinguish between the Friedlin strain and the 2 other L. (L.) major stocks included in the study. Various specific MLEE and RAPD characters permitted to distinguish between the Leishmania species included in the study. All these characters are usable to detect accidental laboratory mix-ups involving the Friedlin reference strain. In confirmation with previous studies involving a more limited set of genetic markers, the general genetic diversity of the Leishmania genus proved to be considerable. It must be made clear that only one strain cannot be considered as representative of the whole genetic variability of the genus Leishmania. In the future, it is therefore advisable to complement the results obtained in the framework of the Leishmania genome project with data from other strains that should be selected on a criterion of important genetic differences with the Friedlin strain.  相似文献   

THE USE OF CHARTS IN THE NATURAL SCIENCES     

Noé AC 《Science (New York, N.Y.)》1928,67(1745):571-574

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黑龙江省大豆近期区试品种蛋白质和脂肪含量的分析   总被引：5，自引：0，他引：5  

宁海龙  潘相文  王红霞  杨庆凯 《东北农业大学学报》2002,33(4):319-323

根据黑龙江省大豆品种区域试验3个试点15个参试品种的蛋白质和脂肪含量的测定结果,研究了各性状的品种(基因型)、地点、品种×地点互作效应相对变异。结果表明,蛋白质含量、脂肪含量和蛋白脂肪总含量在品种间、地点环境间均存在极显著差异,而且存在品种×地点交互作用。蛋白质含量以品种效应的相对变异最大,脂肪含量以品种×地点交互作用的相对变异最大,蛋白脂肪总含量的各效应中以地点效应的相对变异最大。将品种×地点互作效应分解为各参试品种的品种×地点互作效应发现,参试品种的蛋白质含量和脂肪含量均存在品种×地点互作效应,并且有些品种的互作效应较大。  相似文献   

IMPROBABILITY AND IMPOSSIBILITY     

DU Noüy L 《Science (New York, N.Y.)》1944,100(2598):334

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A SIMPLIFIED PROPYLENE GLYCOL DISPENSER FOR FIELD USE     

PERSONNEL OF NAVAL LABORATORY RESEARCH UNIT No. 《Science (New York, N.Y.)》1943,97(2513):208

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Genome-wide association analysis identifies loci for type 2 diabetes and triglyceride levels     

Diabetes Genetics Initiative of Broad Institute of Harvard  MIT  Lund University    Novartis Institutes of BioMedical Research  Saxena R  Voight BF  Lyssenko V  Burtt NP  de Bakker PI  Chen H  Roix JJ  Kathiresan S  Hirschhorn JN  Daly MJ  Hughes TE  Groop L  Altshuler D  Almgren P  Florez JC  Meyer J  Ardlie K  Bengtsson Boström K  Isomaa B  Lettre G  Lindblad U  Lyon HN  Melander O  Newton-Cheh C  Nilsson P  Orho-Melander M  Råstam L  Speliotes EK  Taskinen MR  Tuomi T  Guiducci C  Berglund A  Carlson J  Gianniny L 《Science (New York, N.Y.)》2007,316(5829):1331-1336

New strategies for prevention and treatment of type 2 diabetes (T2D) require improved insight into disease etiology. We analyzed 386,731 common single-nucleotide polymorphisms (SNPs) in 1464 patients with T2D and 1467 matched controls, each characterized for measures of glucose metabolism, lipids, obesity, and blood pressure. With collaborators (FUSION and WTCCC/UKT2D), we identified and confirmed three loci associated with T2D-in a noncoding region near CDKN2A and CDKN2B, in an intron of IGF2BP2, and an intron of CDKAL1-and replicated associations near HHEX and in SLC30A8 found by a recent whole-genome association study. We identified and confirmed association of a SNP in an intron of glucokinase regulatory protein (GCKR) with serum triglycerides. The discovery of associated variants in unsuspected genes and outside coding regions illustrates the ability of genome-wide association studies to provide potentially important clues to the pathogenesis of common diseases.  相似文献   

Differential copper impact on density,diversity and resistance of adapted culturable bacterial populations according to soil organic status     

David P.H. Lejon  Noémie Pascault  Lionel Ranjard 《European Journal of Soil Biology》2010,46(2):168-174

The effect of copper on the abundance, diversity and resistance of viable heterotrophic and copper resistant bacterial populations (Cu^R) was evaluated in soils differing only by their amount and type of organic matter. These soils have been obtained using a vineyard soil that had been subjected to three different organic matter managements (Not Amended (NA) or amended with Straw (S) or Conifer Compost (CC)) in a long term field experiment. Soil microcosms were artificially contaminated with copper (250 mg Cu kg^?1 of soil) and incubated for 35 days. Throughout the incubation, a differential copper impact on viable heterotrophic and Cu^R bacterial enumeration was demonstrated according to the soil organic status with a magnitude which followed the order: NA > CC ≥ S. Diversity of Cu^R bacteria revealed no significant difference between the uncontaminated soils, as determined by 16S rRNA sequencing. However, copper spiking induced an enrichment of particular populations depending on soil, with Methylobacterium, Ralstonia and Staphylococcus like species becoming dominant in NA, S and CC soils, respectively. Evaluation of the copA gene distribution and diversity, through PCR detection and sequencing, revealed that few Cu^R bacteria (from 7 to 13%) possessed this genetic determinant before the addition of metal. Copper contamination induced an increase in the dissemination of homologous copA genes only in Ralstonia like species indigenous to S soils. From a functional point of view, copper minimum inhibitory concentration for each Cu^R strain was measured. It did not highlight variable copper resistance efficiency between strains belonging to different taxonomic groups, harboring or not the copA gene, and originating from different soils contaminated or not by copper.  相似文献