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171.
Prolific shoot bud differentiation was induced in callus and suspension cultures of hypocotyl origin in Brassica campestris cv. Yellow Sarson on MS medium supplemented with K (13.9–23.2 M) or BA (13.3–22.1 M). Plantlets were obtained by rooting the in vitro differentiated shoots. Histological studies revealed a unique mode of meristemoid formation.Abbreviations MS
Murashige and Skoog (1962)
- 2,4-D
2,4-dichlorophenoxyacetic acid
- BA
Benzyladenine
- IAA
Indole-3-acetic acid
- IBA
Indolebutyric acid
- K
Kinetin
- NAA
Naphthalene acetic acid 相似文献
172.
An assessment was made of the degree of metabolic control achieved in diabetic patients attending mini clinics run by general practitioners compared with that in matched diabetic patients attending a hospital clinic. Patients were grouped according to whether they were being treated with diet alone, an oral hypoglycaemic, insulin once daily, or insulin twice daily. Statistical analysis showed no significant difference between patients attending mini clinics and those attending the hospital clinic in retrospective mean blood glucose, retrospective mean glycosylated haemoglobin (HbA1), or prospective HbA1 concentrations. General practitioners providing diabetic care on an organised basis can achieve a degree of glycaemic control in diabetic patients equal to that reached by a hospital clinic. 相似文献
173.
174.
In nonamended soil, vegetative growth and sporulation ofFusarium spp. were higher in the rhizosphere than in the soil. Sporulation was favoured by young plants and decreased with increasing
plant age. Amendments with low C/N oil-cakes enhanced vegetative growth and sporulation in root-free soil. The extent of stimulation
varied with the nature of organic matter used and the stage of its deoomposition. Sporulation was suppressed by castor cake
and sawdust with urea amendments. Rhizosphere cf pea altered the effect of different amendments. 相似文献
175.
176.
177.
1. ATP-dependent proton translocation and ATP-dependent quenching of the fluorescence of 9-aminoacridine were measured in inside-out vesicles derived from a cytochrome-deficient mutant of Escherichia coli. 2. ATP-dependent quenching of fluorescence was inhibited by nigericin gramicidin, NH4Cl, and carbonylcyanide-m-chlorophenylhydrazone. Inhibition was also produced by the ATPase inhibitors N,N'-dicyclohexylcarbodimide (DCCD) and diphenyl phosphorazidate (DPA), and by the respiratory chain inhibitors piericidin A, 2-heptyl-4-hydroxyquinoline N-oxide, and An2+. The inhibition of ATP-dependent fluorescence quenching by the ionophores, uncouplers, and respiratory chain inhibitors was not due to an effect on ATPase activity which was insensitive to these agents. 3. By use of the ATPase inhibitors DCCD and DPA, or by replacing ATP with GTP, ITP and CTP, a correlation between the ATPase activity and the rate of ATP-dependent membrane energization, as measured by fluorescence quenching, was obtained. 相似文献
178.
Summary The concentration, uptake and element use efficiency of N, P and K in one C3 annual (Polypogon monspeliensis) and two C4 (Echinochloa colonum, an annual, andDichathium annulatum, a perennial) grasses were determined during winter and summer seasons in monocultures raised in field plots at three moisture
levels,viz. full, half and one-fourth of field capacity. At each moisture regime the plants were clipped thrice at moderate and severe
levels corresponding to 40 and 80% of live green. The concentration of these elements was characteristic of the growth habit
of these plants;e.g. the build up of concentration was maximum in leaf of the annuals while it was comparable in crown and leaf of Dichanthium.
The N level was maximum in Polypogon. The nutrient use effiency was comparable in the two annuals and maximum K and N use
were obtained in Polypogon and Dichanthium, respectively. 相似文献
179.
Changes in the contents of starch, protein, DNA, RNA, total phosphorus, acid soluble phosphorus and inorganic phosphorus, and in the activities of some enzymes of carbohydrate, amino acid, nucleic acid and phosphate metabolism were studied during the germination of Cuscuta campestris seeds. The results are expressed on per seed basis.
Starch content in Cuscuta seeds showed a steady decline with most of it depleted by the end of the eighth day of germination. Protein content increased with germination up to 48 h and then decreased. RNA and DNA contents increased to a maximal level on the fourth day of germination and then decreased. Total phosphorus in the seeds remained almost unchanged during the period of study. Both trichloroacetic acid soluble and inorganic phosphorus increased until the third day and then decreased. Phytin was rapidly hydrolyzed with little being detectable by the seventh day of germination. Glucose-6-phosphate dehydrogenase increased with germination, while fructose bisphosphate aldolase which is indispensable for glycolysis, decreased with germination. Ribonuclease and deoxyribonuclease increased till the third and fourth day, respectively, and then decreased. Aspartate and alanine aminotransferases showed a maximum on the second day and then decreased. Activities of alkaline fructose-1,6-bisphosphatase and phytase were absent in the dry seeds and appeared only on the second day of germination. Both α- and β-amylase activities were present in the dry seed. 相似文献
Starch content in Cuscuta seeds showed a steady decline with most of it depleted by the end of the eighth day of germination. Protein content increased with germination up to 48 h and then decreased. RNA and DNA contents increased to a maximal level on the fourth day of germination and then decreased. Total phosphorus in the seeds remained almost unchanged during the period of study. Both trichloroacetic acid soluble and inorganic phosphorus increased until the third day and then decreased. Phytin was rapidly hydrolyzed with little being detectable by the seventh day of germination. Glucose-6-phosphate dehydrogenase increased with germination, while fructose bisphosphate aldolase which is indispensable for glycolysis, decreased with germination. Ribonuclease and deoxyribonuclease increased till the third and fourth day, respectively, and then decreased. Aspartate and alanine aminotransferases showed a maximum on the second day and then decreased. Activities of alkaline fructose-1,6-bisphosphatase and phytase were absent in the dry seeds and appeared only on the second day of germination. Both α- and β-amylase activities were present in the dry seed. 相似文献
180.
Baldev Singh Grewal 《Primates; journal of primatology》1980,21(3):330-339
Social interactions of the adult females (nulliparous, primiparous, multiparous young, and multiparous old) of the Arashiyama-B
troop of Japanese monkeys were studied. Using focal-animal and instantaneous sampling techniques, specifically identified
social interactions involving allogrooming, social play, and agonism, nonspecific body-contact with and proximity to other
animals were recorded from 1975 to 1978. By identifying the animals who had the above mentioned social interactions with the
focal females, an attempt has been made to analyze the changes in relationships between the females of different classes and
their closest kins, distant kins, and non-kins. Multiparous young females spend more time in social interactions involving
allogrooming, nonspecific body-contact, and proximity than do females of the other classes and most of their social interactions
are centered around their own offspring. Social interactions of the nulliparous females are fewer than those of the young
mothers. But, the social interactions of the nulliparous females with their kins are much more frequent than those of the
other females, i.e., once a female bears offspring, she concentrates her efforts in raising it and her social life becomes
closed than before. Social interactions of the old mothers decrease and their social life is also centered more around their
own young offspring. However, the social interactions of the females with non-kins, the interactions which strengthen troop
integration, are independent of the class of the females.
This report constitutes one part of the thesis submitted by the author to the Faculty of Science of Kyoto University in 1979
for the award of degree of Doctor of Science. 相似文献