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991.
Sleep research is characterized by an interest in humans, with the realm of animal sleep left largely to ethologists and animal scientists. However, the lives of sleep-study participants and those with sleep problems frequently involve animals. For the majority of the population in developed countries who own pets, their waking lives are impacted by the duties of animal care and ownership. For many, their sleeping lives are also impacted through sharing their bedrooms or their beds with pets. Yet, little is known about the prevalence of human–animal co-sleeping relationships or their impact on sleep. The aim of this study was to determine the prevalence and implications of human–animal co-sleeping in an Australian sample. The study uses data collected from the 2012 Sealy Sleep Census, a national online survey of sleep wellness that included a sample of 10,128 after data cleaning. The population of respondents (aged 18–74) who co-slept with pets (n = 1,018 or 10% of the sample) was then matched to a sample of respondents who did not co-sleep with pets, according to gender and age. Those who co-slept with pets took longer to fall asleep (p = 0.029), were more likely to wake up tired (p = 0.025), and although they were not more likely to wake up due to a disturbance, those who did had a greater chance of being disturbed by dog barking/animals making noises (p < 0.001). However, there were no significant differences found in total self-reported sleep length or feelings of tiredness during the day. The continued practice of co-sleeping with pets suggests that there may be some benefits such as social support and social interaction, and increased feelings of personal security. The survey provides a preliminary understanding of the prevalence and implications of human–animal co-sleeping, and highlights areas for further examination of its implications on sleep research and clinical practice. 相似文献
992.
Catherine Barthe Catherine Figarella Jacqueline Carrère Odette Guy-Crotte 《生物化学与生物物理学报:疾病的分子基础》1991,1096(2):175-177
Cystic fibrosis protein is a serum protein characterized by a pI close to 8.4 and present with a higher concentration in serum and plasma of cystic fibrosis carriers than in controls. This protein was found immunologically indistinguishable from the cystic fibrosis antigen isolated from granulocytes and presenting a sequence analogous to that of MRP-8, a calcium-binding protein expressed in the myeloid cell lineage. Using antibodies directed against MRP-8 and its closely associated calcium-binding protein, MRP-14, we demonstrate here that cystic fibrosis protein purified from serum is a complex of the two proteins MRP-8 and MRP-14. 相似文献
993.
994.
Cross-scale vegetation patterns of Flooding Pampa grasslands 总被引:11,自引:0,他引:11
995.
Albumin and globulin fractions were extracted from dormant seeds of all 20 taxa of Lasthenia. After disc-electrophoresis on basic 7% acrylamide gels, mean Rp values, coefficients of variation and 95% confidence intervals were computed for both types of protein bands. Dendrograms were produced using similarity coefficients, indicating interspecific affinities among the taxa which differ from the sectional taxonomy of the genus. Protein data concerning certain problematical relationships are compared with published taxonomical and chemical data. 相似文献
996.
Understanding genetic diversity and phylogenetic relationships is useful for plant breeding. In this study, we assessed the genetic diversity in a panel of 84 accessions of kenaf from 26 countries using SRAP and ISSR markers. The kenaf accessions could be divided into L1 (60 cultivated varieties) and L2 (24 wild accessions) at the level of 0.145 genetic dissimilarity coefficient by UPGMA. The L2 group was further divided into two subgroups (16 relative-wide and 9 origin wide accessions) at the level of 0.207 genetic dissimilarity. Out of the 9 wild accessions in the L2 group, 6 were from Tanzania and the remaining 3 lines were from Kenya. These results suggest that the center of origin for kenaf might be Tanzania and Kenya. 相似文献
997.
Imputation of missing genotypes from low‐ to high‐density SNP panel in different population designs 下载免费PDF全文
Imputation of missing genotypes, in particular from low density to high density, is an important issue in genomic selection and genome‐wide association studies. Given the marker densities, the most important factors affecting imputation accuracy are the size of the reference population and the relationship between individuals in the reference (genotyped with high‐density panel) and study (genotyped with low‐density panel) populations. In this study, we investigated the imputation accuracies when the reference population (genotyped with Illumina BovineSNP50 SNP panel) contained sires, halfsibs, or both sires and halfsibs of the individuals in the study population (genotyped with Illumina BovineLD SNP panel) using three imputation programs (fimpute v2.2, findhap v2, and beagle v3.3.2). Two criteria, correlation between true and imputed genotypes and missing rate after imputation, were used to evaluate the performance of the three programs in different scenarios. Our results showed that fimpute performed the best in all cases, with correlations from 0.921 to 0.978 when imputing from sires to their daughters or between halfsibs. In general, the accuracies of imputing between halfsibs or from sires to their daughters were higher than were those imputing between non‐halfsibs or from sires to non‐daughters. Including both sires and halfsibs in the reference population did not improve the imputation performance in comparison with when only including halfsibs in the reference population for all the three programs. 相似文献
998.
Diachasmimorpha longicaudata is an Opiinae parasitoid used to control tephritid fruit flies, which cause tremendous economic losses of fruits worldwide. In Thailand, D. longicaudata is classified as three sibling species, DLA, DLB and DLBB, based on the morphological and biological species concepts but their genetic variation has not been studied. Therefore, we investigated the genetic differentiation of the mitochondrial COI gene to clarify the ambiguous taxonomy of this species complex. The 603‐bp COI region was sequenced from laboratory‐bred colonies and field‐collected specimens from seven locations representing five geographical regions in Thailand. DLA was associated with the host Bactrocera correcta while DLB and DLBB were associated with Bactrocera dorsalis. The interspecific nucleotide differences of COI sequences among the three groups ranged from 6.70% to 7.62% (Kimura 2‐parameter distance), which adequately separates species complexes within the order Hymenoptera and supports the current sibling species classification. The neighbor joining, maximum likelihood and consensus Bayesian phylogenetic trees constructed from COI sequences revealed that the three sibling species of laboratory and field‐collected D. longicaudata are monophyletic with 100% support. The high genetic variation and molecular phylogeny of the COI sequences were shown to discriminate between the D. longicaudata species examined in this study. 相似文献
999.
1000.
African origin and global distribution patterns: Evidence inferred from phylogenetic and biogeographical analyses of ectomycorrhizal fungal genus Strobilomyces 下载免费PDF全文
Li H. Han Bang Feng Gang Wu Roy E. Halling Bart Buyck Nourou S. Yorou Sydney T. N. Ebika Zhu L. Yang 《Journal of Biogeography》2018,45(1):201-212