全文获取类型
收费全文 | 160篇 |
免费 | 10篇 |
出版年
2022年 | 1篇 |
2021年 | 1篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2017年 | 1篇 |
2015年 | 4篇 |
2014年 | 5篇 |
2013年 | 6篇 |
2012年 | 8篇 |
2011年 | 5篇 |
2010年 | 6篇 |
2009年 | 8篇 |
2008年 | 2篇 |
2006年 | 1篇 |
2005年 | 4篇 |
2004年 | 1篇 |
2003年 | 5篇 |
2001年 | 6篇 |
2000年 | 1篇 |
1999年 | 9篇 |
1998年 | 3篇 |
1996年 | 4篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 3篇 |
1992年 | 4篇 |
1991年 | 4篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 5篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1981年 | 7篇 |
1980年 | 2篇 |
1979年 | 12篇 |
1978年 | 11篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 3篇 |
1974年 | 5篇 |
1973年 | 3篇 |
1972年 | 1篇 |
1969年 | 2篇 |
排序方式: 共有170条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
F. Kocourek J. Havelka J. Bernkov V. Jaro
ik 《Entomologia Experimentalis et Applicata》1994,71(1):59-64
Thermal requirements for development and life table statistics ofAphis gossypii Glover (Homoptera, Aphididae) were determined over a range of constant temperatures from 10 to 30°C. The lower development
threshold and the sum of effective temperatures were 6.9°C and 90.1°C, respectively, for preimaginal development, and 5.8°C
and 113.6°C from birth to the onset of reproduction. Mean total fecundity ranged from 36 larvae per female at 10°C to 76 larvae
at 30°C. On a time scale of days, net reproductive rate (R
o
) increased with increasing temperature while generation time (T) decreased causing the intrinsic rate of increase (r
m
) to increase linearly from 0.115 to 0.465. On a day-degree scaler
m
only varied from 0.019 to 0.028 because the growth ofR
o
was compensated by an increase inT with increase in temperature. The nearly constantr
m
in terms of day-degrees, over a wide range of temperatures, greatly simplifies the prediction of future population numbers
ofA. gossypii. 相似文献
6.
7.
8.
C Crone J Frokjaer-Jensen JJ Friedman O Christensen 《The Journal of general physiology》1978,71(2):195-220
9.
In a group of 35 subjects (12 hypothyroid, 11 euthyroid and 12 hyperthyroid) the changes of FFA, inorganic phosphorus, calcium and total proteins were investigated during glucose tolerance test with (TGTT) or without (OGTT) triamcinolone pretreatment. In hypothyroidism the decrease of FFA during TGTT was blunted, whereas the pattern of phosphatemia was unaltered and total proteins were increased. In euthyroidism triamcinolone exerts the opposite effect on the behaviour of FFA (decline was smaller and shorter) and phosphatemia (decline was pronounced and persists for longer period). In hyperthyroidism the fasting level of FFA decreased in TGTT but during the test no significant differences in FFA and phosphatemia patterns were observed. The calcemia was not influenced by triamcinolone in any subgroup. Our results suggest the importance of thyroid function as modifying factor in some metabolic effects of triamcinolone in man. Changes in hypothyroidism are in good agreement with changes of blood glucose and insulinemia, as described previously. Opposite effect of triamcinolone on FFA and phosphatemia pattern in euthyroidism may suggest the changes of sensitivity of some peripheral tissues to insulin action. The decline of fasting level of FFA after triamcinolone in hyperthyroidism is surprising and might be of importance in maintaining unaltered glucose tolerance after triamcinolone in this subgroup. 相似文献
10.
Kristina Sejersen Aleksandra Havelka Pearl Sanchez Salas Anders Larsson 《Innate immunity》2022,28(1):49
Calprotectin is one of the most abundant proteins of neutrophil granulocytes. It is released upon neutrophil activation and is considered a sensitive and clinically useful marker for neutrophil-mediated inflammation, including bacterial infections. However, early kinetics of calprotectin activation following inflammatory activation has hitherto been unknown. The aim of the present study was to determine the early phase of the kinetics of calprotectin, in comparison with the inflammatory markers CRP, IL-6, TNF-α, and procalcitonin, in plasma following a standardized temporary mild inflammatory response, using uncomplicated inguinal hernia surgery as a model. The study cohort consisted of 17 adult patients (15 male and 2 female) undergoing elective surgery for hernia. Values of calprotectin increased significantly at 2 h following surgery, and continued to increase to reach the highest level at 24–36 h after surgery, values still not exceeding upper normal reference level. This contrasts to IL-6 and CRP, for which an elevation was found first later, 4 h and 24–36 h post-surgery, respectively, for IL-6, and CRP. No significant increase was seen for TNF-α, or procalcitonin. The data demonstrate a very rapid and significant but modest increase in calprotectin following induction of mild inflammation, supporting that calprotectin can be useful for early detection of inflammatory response. 相似文献