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71.
Adriano Caliman Aliny F. Pires Francisco A. Esteves Reinaldo L. Bozelli Vinicius F. Farjalla 《Biodiversity and Conservation》2010,19(3):651-664
The sub-discipline of biodiversity and ecosystem functioning (BEF) has emerged as a central topic in contemporary ecological
research. However, to date no study has evaluated the prominence and publication biases in BEF research. Herein we report
the results of a careful quantitative assessment of BEF research published in five core general ecology journals from 1990
to 2007 to determine the position of BEF research within ecology, identify patterns of research effort within BEF research,
and discuss their probable proximal and historical causes. The relative importance of BEF publications increased exponentially
during the period analyzed and was significantly greater than the average growth of ecological literature, affirming the prominence
of BEF as a current paradigm in ecology. However, BEF research exhibited a strong bias toward experimental studies on terrestrial
plant communities, with significantly lower effort devoted to the functional aspects of biodiversity in aquatic systems, multiple
trophic level systems, and animal or microbial communities. Such trends may be explained by a combination of methodological
adequacy and historic epistemological differences in ecological thinking. We suggest that BEF researchers should direct more
effort toward the study of aquatic systems and animal communities, emphasize long-term and trophically complex experiments,
such as those with multi-trophic microbial communities, employ larger-scale field observational studies and increase the use
of integrative and theoretical studies. Many technical and analytical methodologies that are already employed in ecological
research, such as stable isotopes, paleobiology, remote sensing, and model selection criteria, can facilitate these aims.
Overcoming the above-mentioned shortcomings of current BEF research will greatly improve our ability to predict how biodiversity
loss will affect ecosystem processes and services in natural ecosystems. 相似文献
72.
Early evolution of bHLH proteins in plants 总被引:1,自引:0,他引:1
73.
Lívia Santos Lima Karina Peres Gramacho José Luis Pires Didier Clement Uilson Vanderlei Lopes Nicolas Carels Abelmon da Silva Gesteira Fernanda Amato Gaiotto Júlio Cézar de Mattos Cascardo Fabienne Micheli 《Tree Genetics & Genomes》2010,6(5):663-676
In this study, we report results of the detection and analysis of SSR markers derived of cacao–Moniliophthora perniciosa expressed sequence tags (ESTs) in relation to cacao resistance to witches’ broom disease (WBD), and we compare the polymorphism
of those ESTs (EST-simple sequence repeat (SSR)) with classical neutral SSR markers. A total of 3,487 ESTs was used in this
investigation. SSRs were identified in 430 sequences: 277 from the resistant genotype TSH 1188 and 153 from the susceptible
one Catongo, totalizing 505 EST-SSRs with three types of motifs: dinucleotides (72.1%), trinucleotides (27.3%), and tetranucleotides
(0.6%). EST-SSRs were classified into 16 main categories; most of the EST-SSRs belonged to “Unknown function” and “No homology”
categories (45.82%). A high frequency of SSRs was found in the 5’UTR and in the ORF (about 27%) and a low frequency was observed
in the 3’UTR (about 8%). Forty-nine EST-SSR primers were designed and evaluated in 21 cacao accessions, 12 revealed polymorphism,
having 47 alleles in total, with an average of 3.92 alleles per locus. On the other hand, the 11 genomic SSR markers revealed
a total of 47 alleles, with an average of 5.22 alleles per locus. The association of EST-SSR with the genomic SSR enhanced
the analysis of genetic distance among the genotypes. Among the 12 polymorphic EST-SSR markers, two were mapped on the F2 Sca 6 × ICS 1 population reference for WBD resistance. 相似文献
74.
Marreiro DN do Perpetuo Socorro C Martins M de Sousa SS Ibiapina V Torres S Pires LV do Nascimento Nogueira N Lima JM do Monte SJ 《Biological trace element research》2007,120(1-3):42-50
The objective of this study was to assess urinary excretion of zinc and evaluation parameters of metabolic control in type
2 diabetic patients. Thirty-one type 2 diabetic patients, of both genders, with 5.8 ± 5.6 years average time of the disease,
age range 20–60 years, were selected. Evaluation of the nutritional status was performed using anthropometric measurements.
To evaluate food consumption, the 3-day alimentary log method was used, and its analysis was performed using a software. Determination
of urinary zinc was by atomic absorption spectrophotometry. From the obtained results, it was concluded that 51.6% of the
patients were overweight. The mean of found waist circumference was 100.4 and 92.2 cm for men and women, respectively. Blood
glucose and glycated hemoglobin values were higher than reference values, and plasma albumin concentration was adequate. The
median of found urinary zinc excretion was 474.9 μg/24 h, within normal standards (300–600 μg/day). Regarding diet composition,
calorie and protein concentration were above recommendation, while mean zinc concentration was adequate. This data allow the
conclusion that the evaluated patients presented adequate urinary zinc excretion in comparison with reference values. 相似文献
75.
A novel approach to DNase I-sensitivity analysis was applied to examining genes of the spermatogenic pathway, reflective of
the substantial morphological and genomic changes that occur during this program of differentiation. A new real-time PCR-based
strategy that considers the nuances of response to nuclease treatment was used to assess the nuclease susceptibility through
differentiation. Data analysis was automated with the K-Lab PCR algorithm, facilitating the rapid analysis of multiple samples
while eliminating the subjectivity usually associated with Ct analyses. The utility of this assay and analytical paradigm as applied to nuclease-sensitivity mapping is presented. 相似文献
76.
Zanin Fabiana Couto Freitas Natália Chagas Pinto Renan Terassi Máximo Wesley Pires Flausino Diniz Leandro Eugenio Cardamone Paiva Luciano Vilela 《Molecular biology reports》2022,49(3):1973-1984
Molecular Biology Reports - Small auxin-up RNA (SAUR) genes form a wide family supposedly involved in different physiological and developmental processes in plants such as leaf senescence, auxin... 相似文献
77.
Cavalcanti-de-Albuquerque Joao Paulo de-Souza-Ferreira Eduardo de Carvalho Denise Pires Galina Antonio 《Neurochemical research》2022,47(2):470-480
Neurochemical Research - Glucose and oxygen (O2) are vital to the brain. Glucose metabolism and mitochondria play a pivotal role in this process, culminating in the increase of reactive O2 species.... 相似文献
78.
Valsecchi Elena Coppola Emanuele Pires Rosa Parmegiani Andrea Casiraghi Maurizio Galli Paolo Bruno Antonia 《Biodiversity and Conservation》2022,31(4):1175-1196
Biodiversity and Conservation - The monk seal is the most endangered pinniped worldwide and the only one found in the Mediterranean, where its distribution and abundance have suffered a drastic... 相似文献
79.
80.
The galactose‐binding lectin isolated from Bauhinia bauhinioides Mart seeds inhibits neutrophil rolling and adhesion via primary cytokines 下载免费PDF全文
Deysen Kerlla Fernandes Bezerra Girão Benildo Sousa Cavada Alana de Freitas Pires Timna Varela Martins Álvaro Xavier Franco Cecília Mendes Morais Kyria Santiago do Nascimento Plinio Delatorre Helton Colares da Silva Celso Shiniti Nagano Ana Maria Sampaio Assreuy Pedro Marcos Gomes Soares 《Journal of molecular recognition : JMR》2015,28(5):285-292
In this study, the amino acid sequence and anti‐inflammatory effect of Bauhinia bauhinioides (BBL) lectin were evaluated. Tandem mass spectrometry revealed that BBL possesses 86 amino acid residues. BBL (1 mg/kg) intravenously injected in rats 30 min prior to inflammatory stimuli inhibited the cellular edema induced by carrageenan in only the second phase (21% – 3 h, 19% – 4 h) and did not alter the osmotic edema induced by dextran. BBL also inhibited carrageenan peritoneal neutrophil migration (51%), leukocyte rolling (58%) and adhesion (68%) and the neutrophil migration induced by TNF‐α (64%). These effects were reversed by the association of BBL with galactose, demonstrating that the carbohydrate‐binding domain is essential for lectin activity. In addition, BBL reduced myeloperoxidase activity (84%) and TNF‐α (68%) and IL1‐β (47%) levels. In conclusion, the present investigation demonstrated that BBL contains highly homologous isolectins, resulting in a total of 86 amino acid residues, and exhibits anti‐inflammatory activity by inhibiting neutrophil migration by reducing TNF‐α and IL1‐β levels via the lectin domain. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献