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101.
Simon?DevinEmail author Lo?c?Bollache Pierre-Yves?No?l Jean-Nicolas?Beisel 《Hydrobiologia》2005,551(1):137-146
Freshwater biodiversity is threatened by several mechanisms, of which the introduction of non-indigenous species and habitat
alteration are the two most important. Exotic species act at various levels of organisation of macroinvertebrate communities,
and are involved in different processes mediating their impacts on biodiversity, such as habitat modification or negative
interactions with autochthonous fauna. The present work gives a list of the 43 French freshwater non-indigenous species, which
represent 1.2% of the French freshwater macroinvertebrates. We provide their geographic origins, their distributions among
zoological units by comparison with the native fauna and their functional characteristics according to a recent typology based
on bio/ecological traits. An exponential trend of the cumulated number of non-indigenous species was evidenced, with a clumping
of invaders within crustaceans and molluscs. Donor areas of non-indigenous species are in majority European, and the Ponto-Caspian
basin is identified as the principal one. This pattern could be explained by a spread along waterways but its origin lies
in a process of recolonisation of defaunated areas following several episodes of glaciation/deglaciation in Western Europe
during the last 80,000 years. Finally, from a functional point of view, non-indigenous species exhibit a limited diversity,
with two functional groups representing 80% of them. 相似文献
102.
Identification of unique transcripts from a mouse full-length, subtracted inner ear cDNA library 总被引:8,自引:0,他引:8
Beisel KW Shiraki T Morris KA Pompeia C Kachar B Arakawa T Bono H Kawai J Hayashizaki Y Carninci P 《Genomics》2004,83(6):34699-1023
A small-scale full-length library construction approach was developed to facilitate production of a mouse full-length cDNA encyclopedia representing approximately 250 enriched, normalized, and/or subtracted cDNA libraries. One library produced using this approach was a subtracted adult mouse inner ear cDNA library (sIEa). The average size of the inserts was approximately 2.5 kb, with the majority ranging from 0.5 to 7.0 kb. From this library 22,574 sequence reads were obtained from 15,958 independent clones. Sequencing and chromosomal localization established 5240 clusters, with 1302 clusters being unique and 359 representing new ESTs. Our sIEa library contributed 56.1% of the 7773 nonredundant Unigene clusters associated with the four mouse inner ear libraries in the NCBI dbEST. Based on homologous chromosomal regions between human and mouse, we identified 1018 UniGene clusters associated with the deafness locus critical regions. Of these, 59 clusters were found only in our sIEa library and represented approximately 50% of the identified critical regions. 相似文献
103.
104.
Variations in the susceptibility to Coxsackievirus B3-induced myocarditis among different strains of mice 总被引:30,自引:0,他引:30
L J Wolfgram K W Beisel A Herskowitz N R Rose 《Journal of immunology (Baltimore, Md. : 1950)》1986,136(5):1846-1852
This study was undertaken to examine the inherent predisposition of different inbred strains of mice to develop Coxsackievirus B3-induced myocarditis. A time course study established the pertinent, differential parameters of the disease and their corresponding genetic control. The A.BY/SnJ (H-2b), A.SW/SnJ (H-2s), A.CA/SnJ (H-2f), B10.S/SgSf (H-2s), B10.PL/SgSf (H-2u), and C3H.NB/SnJ (H-2p) strains were found to vary widely in the extent and duration of viremia, in the temporal appearance and titer of neutralizing antibody, and in the prevalence, severity, and duration of myocardial disease. The A.BY/SnJ (H-2b), A.SW/SnJ (H-2s), A.CA/SnJ (H-2f), and C3H.NB/SnJ (H-2p) mice developed continuing, chronic myocardial disease, whereas B10.S/SgSf (H-2s) and B10.PL/SgSf (H-2u) did not. The four strains that displayed prolonged myocarditis also produced heart-specific myocardial autoantibodies. Heart-specific autoantibodies were not found in the B10.S/SgSf and B10.PL/SgSf animals. Differences in prevalence and titer of these heart-specific autoantibodies were noted among the three A strain H-2 congenic lines. The influence of the major histocompatibility complex (MHC) on disease production was demonstrated by comparison of the three A strain and two B10 strain H-2 congenics. Differences between A.SW/SnJ (H-2s) and B10.S/SgSf (H-2s) suggested non-MHC control of disease. These studies additionally indicate that the genetic regulation of susceptibility to CB3 infection and the direct virus-induced inflammation differ from the later immunopathic myocarditis. 相似文献
105.
We have obtained and sequenced the coding sequence of the mouse cardiac alpha-myosin heavy chain (Myhc alpha) from the A/J, BALB/cByJ, C57BL/6J, and DBA/2J inbred mouse strains. Overlapping cDNA sequences were obtained using RNA-PCR and anchor-PCR techniques for these studies. In the A/J mouse strain, the full-length message is 5989 bp long and encodes for a protein consisting of 1938 amino acids (Mr 223,689). The protein deduced sequence of the A/J Myhc alpha was compared with corresponding sequences of human and rat Myhc alpha and beta. These results demonstrated that the mouse Myhc alpha is highly conserved and has maintained the alpha-isoform-specific divergent cluster observed in other Myhc alpha proteins. One difference was the loss of a glutamine at residue 1932, which is due to a change in an RNA splicing site sequence. Allelic variability was observed in both nucleotide and amino acid sequences among the four different inbred mouse strains and generally appears to be random in nature. Three of the nucleotide changes resulted in a different amino acid, while the remaining 46 were silent substitutions. 相似文献
106.
107.
Effect of Staphylococcal Enterotoxin B on the Electroencephalogram of Monkeys 总被引:2,自引:1,他引:1
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Leland F. Hodoval Earl L. Morris Dennis D. Elsberry William R. Beisel 《Applied microbiology》1967,15(2):403-406
A highly purified preparation of staphylococcal enterotoxin B was administered intravenously, 1 mg/kg, to rhesus monkeys. Electroencephalograms (EEG) were recorded from electrodes attached to the skin or implanted on the dura. The dose of toxin employed consistently produced a sequence of vascular collapse followed by death; in control studies, animals were bled periodically to produce a similar pattern of shock. Regardless of the time to death following administration of the enterotoxin, there were essentially no changes from base line EEG patterns until shortly before death. With the development of preterminal severe shock, there was a marked decrease in EEG wave frequency and an initial increase in amplitude. The latter diminished progressively to produce an isoelectric tracing immediately prior to death. This could be reversed for a brief period by epinephrine. An identical sequence of EEG changes was observed during the terminal period of hemorrhagic shock. It is postulated that cerebral anoxia, caused by inadequate blood flow, is the primary cause of the altered EEG patterns that accompany enterotoxin toxicity. In this respect, staphylococcal enterotoxin B produces changes apparently similar to bacterial endotoxin but distinctly different from the EEG effects reported after botulinum toxin, anthrax toxin, or rattlesnake and cobra venom. 相似文献
108.
Beisel KW Rocha-Sanchez SM Ziegenbein SJ Morris KA Kai C Kawai J Carninci P Hayashizaki Y Davis RL 《Gene》2007,386(1-2):11-23
109.
110.
Interaction of an avian tuberculosis infection with a known metabolizable energy yield of dietary corn oil in chicks was used to quantitate total host energy expenditure necessitated by the infectious process. Three trials in which two doses of inoculum were used resulted in mild and severe involvements. Trial 1 (mild) indicated that 6% and trials 2 and 3 (severe) that 96 and 93% of the energy supplied by known quantities of corn oil were utilized by the tuberculosis process. In the birds given the low level of inoculum, the degree of tuberculosis involvement, as measured by increased liver size, was correlated with increased total quantities of hepatic ribonucleic acid, monoglycerides, free fatty acids, free cholesterol, and glucose. All of these effects were observed prior to manifestations of clinical symptoms or failure of the chicks to consume all food offered. 相似文献