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991.
Mori K 《Journal of human ergology》1997,26(2):173-183
The techniques and skills of the age are changing, but the work situation is not corresponding to these changes. Furthermore, this causes problems in human resources development. We have investigated the contents of productive skills, vocational abilities, and work conditions, and as a result, productive skills were divided into two patterns: intellectual-management skills and sensory-motor skills. The contents of intellectual-management skills are divided into measurement, examination, design and arrangement, analysis and judgment, and understanding of technical knowledge. The contents of sensory-motor skills are divided into vision, audition and touch, visual judgment, motion of limbs, judgment by hands, and quality of the product. A sensory-motor skill is defined as one that mainly depends on judgment and memory capabilities. The former includes skills related to traditional handicrafts, processing assembling, and machine operation. The latter includes skills related to programming, designing, and controlling. A connection deeply related to the human being's essence can be found in both skills. When we examine human work systems, it is important to consider this essence. 相似文献
992.
A Takabayashi K Ohara T Ohmura S Watanabe S Mori M Tanaka S Sakuragi 《Biological Sciences in Space》1997,11(4):351-354
In a space experiment, the adaptation of goldfish behavior during flight and readaptation after landing were investigated. Six goldfish (1 normal, 1 with otoliths removed on both sides, 4 with otoliths removed on one side) were flown in a fish package (F/P) of Aquatic Animal Experiment Unit (AAEU). The dorsal light responses (DLRs) of fish with otoliths removed were recorded after operation until launch and after landing. The behaviors of the fish were recorded with a video camera on Mission Elapsed Time (MET) Day-00, 02, 05, 08, 12. On MET Day-00, two fish with otoliths removed on one side showed flexion of body toward the operated side. These fish also showed rolling behavior toward the operated side. However, the body flexion disappeared on MET Day-05 or MET Day-08. No rolling behaviors were observed after that time. Five fish showed backward looping behaviors during the mission. Although the frequency of looping episodes decreased after MET Day-08, five fish still showed looping behavior on MET Day-12, that was the last day of video recording on orbit. In microgravity, visual system of fish did not seem to provide sufficient cues to prevent them from looping or rolling. After landing, no looping and rolling behavior was observed. However, the tilt angle of the DLR increased in the fish with otolith removed 5 month before launch but not in normal fish and those with otoliths removed 2 weeks before launch. These results suggest that the behavioral dysfunction and the adaptational process in space are dependent on vestibular inputs. 相似文献
993.
Tatsuhiko Kataoka Maiko Mori Tomoko M. Nakanishi Satoshi Matsumoto Akira Uchiumi 《Journal of plant research》1997,110(3):305-309
We present highly sensitive aluminum detection method in root using fluorescent lumogallion. Roots treated with 100 μM AlCl3 including 0.2 mM CaCl2 (pH 4.5) were stained for 60 min with 10 μM lumogallion fluorescence solution and fluorescence from aluminum complex in root
was observed under confocal laser microscope. There was a good correlation between the intensity of fluorescence and aluminum
content. When the amount of aluminum lost during each step in staining process was measured, it was found that about 10% of
aluminum was lost only at staining stage. Through lumogallion staining method, aluminum accumulation especially at an early
stage of aluminum treatment in root was shown. At the beginning (2 hr), aluminum began to be accumulated in root cap. After
4 hr treatment, the aluminum distribution was spread to about 3 mm from root apex in the root cap and outer cortex. When aluminum
was found in the outer cortex in 3–5 mm from the root apex, the viability was tended to be decreased in the same area (6 hr).
At the same time, aluminum amount in meristem was increased. However the comparison of lumogallion staining method with that
of morin, which has been widely used to detect aluminum in root, the sensitivity of lumogallion method was found to be much
higher. 相似文献
994.
Kamimura Yasumaro; Mori Takahiro; Yamasaki Takenobu; Katoh Sakae 《Plant & cell physiology》1997,38(2):133-138
A water-soluble Chl a/b-protein (CP673) was isolated and purifiedfrom Brussels sprouts (Brassica oleracea L. var. gemmifera DC).The protein had a molecular mass of 78 kDa and an isoelectricpoint of 4.7, consisted of three or four subunits of 22 kDaand was extremely heat-stable. Although CP673 contained aboutone Chl a per protein, the blue and red absorption bands ofChl a that consisted of three or four Chl a forms with differentabsorption maxima suggested that there are several differentmodes or sites of binding for Chl a. Chl a/b ratio of largerthan 10 also indicated that Chl b is present only in a smallfraction of CP673. The heterogeneity of CP673 in terms of compositionand binding of Chl suggests that Chl is not an intrinsic componentof the Chl-protein. Homology search showed that the N-terminalamino acid sequence of CP673 is highly homologous with thatof a 22 kDa protein that accumulates in water-stressed leavesof two Brassicaceae plants, rapeseed and radish, but not withthose of the light-harvesting Chl a/b-proteins of photosynthesis.A possible function of the water-soluble Chl-protein was discussed. (Received September 17, 1996; Accepted November 18, 1996) 相似文献
995.
Minami Yoshiko; Takao Hiroyasu; Kanafuji Takeo; Miura Kazuo; Kondo Maki; Hara-Nishimura Ikuko; Nishimura Mikio; Matsubara Hiroshi 《Plant & cell physiology》1997,38(9):1069-1074
rß-Glucosidase of indigo plant (Polygonum tinctorium)has a high substrate specificity for indican (indoxyl rß-D-gIu-coside).To examine the localization of this rß-glucosidase,we fractionated the cells of the leaves and analysed them im-munocytochemically.Immunoelectron micrographs with specific antibodies againstthe rßglucosidase clearly showed that the rß-glucosidasewas localized in the stroma of the chloroplasts in mesophyllcells, but not in the thylakoid membrane. Chloroplasts wereisolated from the crude ho-mogenate of the fresh leaves by Percolldensity gradient centrifugation and then subjected to suborganellarfrac-tionation. rßGlucosidase activity was specificallydetected in the stromal fraction, but not in the thylakoid membrane.This was also supported by the result of an immunoblot of thefractions with anti-rßglucosidase antibodies. Therß-gIu-cosidase was immunocytochemically localizedin the chloroplasts of mesophyll cells, but not in any chloroplastsin marginal cells of the vascular bundle or epidermal cells;ribulose 1,5-bisphosphate carboxylase (Rubisco), a typical stromalprotein, was observed in all chloroplasts in these cells. Theseresults suggest that rß-glucosidase is tissue specificin its expression in the leaves of the indigo plant. (Received April 14, 1997; Accepted July 10, 1997) 相似文献
996.
There have been no reports of infanticide in wild gelada baboons and it has been argued that infanticide is not necessary
in geladas, since the birth interval of female gelada can be shortened after takeover of a unit by a new leader male without
infanticide. However, we observed an instance of infanticide in a newly-found wild gelada population in the Arsi Region of
Ethiopia.
After a leader male of the unit was severely wounded by a leopard attack, he was quite weakened. The second male of the unit,
a young adult male, became the leader of the unit three weeks later, but the former leader continued to stay in the unit as
a second male. After a week, two other adult males joined the unit which, therefore, came to include four adult males. The
infanticide took place nine days later. The perpetrator was one of the immigrant males and he showed great interest in the
mother of the unweaned victim infant. Although the perpetrator copulated with her after the infanticide, the usurper was found
to own all three adult females after two weeks following the infanticide; i.e. the perpetrator could not own any female. The
wounded former leader showed conspicuous protective behavior towards the victim's mother and the dead infant.
One possible explanation for the occurrence of infanticide in this population of geladas is as follows. Gelada males in this
area may be able to join units more easily to form multi-male units but then have shorter tenure in the units. Facing the
unstable condition of units, they may sometimes engage in infanticide to increase their breeding opportunities, even before
becoming a leader. 相似文献
997.
A conditioned medium (CM) prepared from suspended cultures of strawberry, Fragaria ananassa, which stimulated anthocyanin
accumulation in cultured strawberry cells, was applied to the suspension-cultured cells of rose, Rosa hybrida sp which did
not normally produce anthocyanin. When the rose cells were transferred into the CM, it induced anthocyanin formation and accumulation
in the rose cells. It is suggested that the CM may be effective for inducing anthocyanin accumulation in cultured cells of
other species.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
998.
Shibata Kenji Yano Keiichi Tanaka Takeo Matsuda Yuzuru Yamasaki Motoo 《International journal of peptide research and therapeutics》1997,4(3):167-170
Summary RES-701-1 is an endothelin B receptor (ETB) selective peptidic antagonist, which has a novel cyclic structure of microbial origin. Modification at the C-terminal free
carboxyl group of RES-701-1 by a methyl ester results in an ETA/ETB dual selective analog, which showed relatively high affinity for ETA receptor subtype, while retaining the affinity for ETB. The carboxyl-group-deleted analog with tryptamine as the C-terminal residue also showed relatively weak affinity for ETA; however, benzyl ester or amide analogs did not show remarkable affinity for ETA. It is suggested that the binding mode of RES-701-1 and its analogs is different from those of known ligands for ET receptors. 相似文献
999.
Kensei Kobayashi Hisako Tonishi Taiki Tsuboi Nobushige Suzuki Takeo Kaneko Yoshinori Takano Yasuo Yasuyuki Muramatsu Hirofumi Hashimoto Masamichi Yamashita 《Biological Sciences in Space》2004,18(3):179-180
Complex organic compounds have been found in extraterrestrial bodies such as meteorites and comets. We confirmed the formation of complex organic compounds that contained amino acid precursors from a mixture of carbon monoxide (or methanol), ammonia and water by radiation or UV. Molecular weights of the complex organics were several thousands. Stability of the complex precursors was studied. When free amino acids were irradiated with gamma rays or synchrotron radiation, they easily decomposed. The complex precursors were, however, much more stable than free amino acid against irradiation. We propose to examine the formation and alteration of amino acid precursors in space by using exposed facility of ISS. 相似文献
1000.
Kensei Kobayashi Yuki Ito Arimichi Moroi Yae Edazawa Takeo Kaneko Yoshinori Takano 《Biological Sciences in Space》2004,18(3):144-145
A wide variety of methods have been proposed to detect microbial activities, but most of them can be applied to limited categories of terrestrial organisms. We propose here to use phosphatase activity, which seems to be an essential catalytic activity for all the terrestrial organisms, and possibly for extraterrestrial organisms. We determined phosphatase activity in core samples, chimney samples, and sea water samples obtained in submarine hydrothermal systems located at Suiyo Seamount, Izu-Bonin Arc, and South Mariana. It was shown that phosphatase activity is one of possible biomarkers for extant life. 相似文献