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621.
Gábor árpád CZIRJáK Lóránd Béla K?B?LKUTI Miklós TENK Attila SZAKáCS Attila KELEMEN Marina SP?NU 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2015,77(6):701-703
A natural hybrid of Vipera ammodytes × Vipera berus was
presented having low body weight, seizures and generalized swelling of the cephalic
region. Based on the history of the case and clinical examination, hemorrhagic stomatitis
of traumatic origin was diagnosed. The snake was kept in a terrarium with wood chips as a
substrate, and the material had induced trauma in the oral mucosa which was further
complicated with Salmonella Arizonae and Morganella
morganii co-infection, abscessation and osteomyelitis. To the best of the
authors’ knowledge, this is the first reported case of bacterial infection in European
snake hybrids and one of a few case reports in European snakes. Although wood chips are an
inexpensive substrate, based on our findings, they should be avoided when keeping and
breeding European vipers. 相似文献
622.
The sawdust of oak and black locust hardwood was found to have good adsorption capacities for heavy metal ions. The leaching
of coloured organic matters during the adsorption can be prevented by each of the following pre-treatments of adsorbents:
with formaldehyde in acidic medium, with sodium hydroxide solution after formaldehyde treatment, or with sodium hydroxide
only. The studies indicated that the leaching of coloured matters from modified hardwood sawdust was less than that from unmodified
hardwood sawdust, namely between 70 and 94%, dependent on wood species and the method of modification. At the same time, adsorption
capacities of modified adsorbents were higher than unmodified adsorbents when sodium hydroxide was applied for modification.
When formaldehyde was applied for modification, the adsorption capacities of adsorbents remained unchanged. Only the application
of sodium hydroxide was recommended for modification of hardwood sawdust. 相似文献
623.
Marina M. Kozyrenko Elena V. Artyukova Vladimir N. Shmakov Yuri M. Konstantinov 《Journal of Forest Research》2007,12(5):388-392
The genetic variability of four natural populations of Larix gmelinii from East Siberia was determined and compared by RAPD analysis. Comparison of the RAPD profiles provided an estimation of
variability in 193 RAPD fragments. More than 89% of these fragments were found to be polymorphic. The main genetic variability
parameters of the two populations from Central Yakutia, a region free of fluoride pollution, had considerably higher values
than those from East Transbaikalia, a region potentially affected by fluoride pollution (FLU, near a fluorite quarry growing
on soils with a high natural content of fluorides). AMOVA revealed that 72.94% of the variation was within populations, while
only 7.05% of the variation was between populations within geographical regions. The genetic diversity of the FLU fluoride-tolerant
population was the lowest, but only slightly lower than that of a fluoride non-tolerant population from Chita, 50 km distant
from FLU. Although this study demonstrates the absence of fundamental alterations of genetic structure within the populations
of L. gmelinii growing on soils with a high content of fluorides, it is presumed that the reduction of genetic diversity was the genetic
response of the FLU population to such an environmental stress as a constantly high concentration of fluorides within the
soil. 相似文献
624.
The isolation and NMR data of seco-lupane triterpenes and coumarins from Platypodium elegans are reported. 相似文献
625.
Cenci Alberto D'Ovidio Renato Tanzarella Oronzo Antonio Ceoloni Carla Pasquini Marina Porceddu Enrico 《Euphytica》2003,130(2):177-183
The distal region of the short arm of chromosome 3S from Aegilopslongissima, which carries the powdery mildew resistance gene Pm13, was introgressed into common wheat. Due to suppression of recombination between this region and corresponding wheat homoeologous
segments, a possible strategy to construct a genetic map around the Pm13 gene was based on crosses between a wheat addition line carrying the Ae.longissima 3S chromosome and the corresponding 3S addition lines of Ae.searsii and Ae. variabilis. The efficiency of this strategy was evaluated by scoring recombination frequencies inprogenies derived from these crosses.
Recombination between 3S chromosomes fromAe. searsii and Ae. longissimawas very low, whereas 26.5% recombinant alien chromosomes were obtained from the cross involving the Ae. variabilisand Ae. longissima 3S addition lines. These data were used to construct a3S chromosome map that resulted largely colinear to the consensus map
of the homoeologous group 3 of wheat.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
626.
Kylli P Nohynek L Puupponen-Pimiä R Westerlund-Wikström B Leppänen T Welling J Moilanen E Heinonen M 《Journal of agricultural and food chemistry》2011,59(7):3373-3384
European, small-fruited cranberries (Vaccinium microcarpon) and lingonberries (Vaccinium vitis-idaea) were characterized for their phenolic compounds and tested for antioxidant, antimicrobial, antiadhesive, and antiinflammatory effects. The main phenolic compounds in both lingonberries and cranberries were proanthocyanidins comprising 63-71% of the total phenolic content, but anthocyanins, hydroxycinnamic acids, hydroxybenzoic acids, and flavonols were also found. Proanthocyanidins are polymeric phenolic compounds consisting mainly of catechin, epicatechin, gallocatechin, and epigallocatechin units. In the present study, proanthocyanidins were divided into three groups: dimers and trimers, oligomers (mDP 4-10), and polymers (mDP > 10). Catechin, epicatechin, A-type dimers and trimers were found to be the terminal units of isolated proanthocyanidin fractions. Inhibitions of lipid oxidation in liposomes were over 70% and in emulsions over 85%, and in most cases the oligomeric or polymeric fraction was the most effective. Polymeric proanthocyanidin extracts of lingonberries and cranberries were strongly antimicrobial against Staphylococcus aureus, whereas they had no effect on other bacterial strains such as Salmonella enterica sv. Typhimurium, Lactobacillus rhamnosus and Escherichia coli. Polymeric fraction of cranberries and oligomeric fractions of both lingonberries and cranberries showed an inhibitory effect on hemagglutination of E. coli, which expresses the M hemagglutin. Cranberry phenolic extract inhibited LPS-induced NO production in a dose-dependent manner, but it had no major effect on iNOS of COX-2 expression. At a concentration of 100 μg/mL cranberry phenolic extract inhibited LPS-induced IL-6, IL-1β and TNF-α production. Lingonberry phenolics had no significant effect on IL-1β production but inhibited IL-6 and TNF-α production at a concentration of 100 μg/mL similarly to cranberry phenolic extract. In conclusion the phenolics, notably proanthocyanidins (oligomers and polymers), in both lingonberries and cranberries exert multiple bioactivities that may be exploited in food development. 相似文献
627.
Prolactin: does it exert an up-modulation of the immune response in Trypanosoma cruzi-infected rats?
Filipin Mdel V Brazão V Santello FH Caetano LC Toldo MP do Prado JC 《Veterinary parasitology》2011,181(2-4):139-145
During the course of infection by Trypanosoma cruzi, the host immune system is involved in distinct, complex interactions with the endocrine system, and prolactin (PRL) is one of several hormones involved in immunoregulation. Although intensive studies attempting to understand the mechanisms that underlie Chagas' disease have been undertaken, there are still some pieces missing from this complex puzzle. Because data are scarce concerning the role of PRL involvement in Chagas' disease and taking into account the existence of crosstalk between neuroendocrine hormones and the immune system, the current study evaluates a possible up-regulation of the cellular immune response triggered by PRL in T. cruzi-infected rats and the role of PRL in reversing immunosuppression caused by the parasitic infection. The data shown herein demonstrate that PRL induces the proliferation of T lymphocytes, coupled with an activation of macrophages and the production of nitric oxide (NO), leading to a reduction in the number of blood trypomastigotes during the peak of parasitemia. During the acute phase of T. cruzi infection, an enhancement of both CD3+CD4+ and CD3+CD8+ T cell populations were observed in infected groups, with the highest numbers of these T cell subsets found in the infected group treated with PRL. Because NO is a signaling molecule involved in a number of cellular interactions with components of the immune system and the neuroendocrine system, PRL can be considered an alternative hormone able to up-regulate the host's immune system, consequently lowering the pathological effects of a T. cruzi infection. 相似文献
628.
Karioti A Sokovic M Ciric A Koukoulitsa C Bilia AR Skaltsa H 《Journal of agricultural and food chemistry》2011,59(12):6412-6422
The antibacterial and antifungal activities of an ample number of phenolic compounds isolated from Quercus ilex leaves, belonging to the classes of flavonoids, proanthocyanidins, and phenolic acids, are discussed. The isolation of A type proanthocyanidin, (+)-epigallocatechin-(2β→O→7, 4β→8)-(+)-catechin is reported for the first time. Its structure was established by means of highfield NMR (correlation spectroscopy, heteronuclear single quantum correlation, heteronuclear multiple bond correlation, and rotating frame Overhauser effect spectroscopy) and MS spectral analyses, while its absolute configuration was determined by circular dichroism measurements. The isolated compounds were tested for their antimicrobial effects against eight human bacterial species and 14 fungal species. In a second step, the most potent compounds were tested in combination with the conventional fungicides, bifonazole and ketoconazole, to evaluate possible synergistic effects. Results showed that proanthocyanidins 3 and 4 when combined with bifonazole and ketoconazole increase the activity of both of these conventional fungicides. Moreover, the pharmacokinetic profile of the isolated compounds was investigated using computational methods. 相似文献
629.
630.