首页 | 官方网站   微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   762篇
  免费   5篇
  国内免费   1篇
工业技术   768篇
  2021年   5篇
  2020年   5篇
  2019年   5篇
  2018年   5篇
  2017年   6篇
  2016年   8篇
  2015年   8篇
  2014年   5篇
  2012年   12篇
  2011年   20篇
  2008年   14篇
  2007年   30篇
  2006年   18篇
  2005年   8篇
  2004年   18篇
  2003年   12篇
  2002年   13篇
  2001年   14篇
  2000年   14篇
  1999年   13篇
  1998年   4篇
  1992年   15篇
  1991年   16篇
  1990年   38篇
  1989年   37篇
  1988年   36篇
  1987年   32篇
  1986年   43篇
  1985年   38篇
  1984年   24篇
  1983年   6篇
  1982年   6篇
  1980年   4篇
  1978年   6篇
  1975年   13篇
  1974年   7篇
  1973年   17篇
  1972年   17篇
  1971年   7篇
  1970年   8篇
  1969年   9篇
  1968年   7篇
  1967年   8篇
  1966年   9篇
  1965年   4篇
  1959年   9篇
  1958年   53篇
  1957年   22篇
  1956年   8篇
  1955年   4篇
排序方式: 共有768条查询结果,搜索用时 15 毫秒
31.
The results of the creating canned ground goods of a new kind are described in this article. The main character references of food value of hake and the canned ground foods based on it. It has been established that the new products of safety. Clinical tests have been showed the efficiency of including these canned goods in the menu of fat patients, also with heavy obesity. Dietetic canned ground foods on the base of oceanic fishes with plant additives.  相似文献   
32.
The anticancer activity and toxicity of blastolysin were studied in 13 dogs with mammary cancer using two different schedules. The agent was given 5 times in a dose of 2.5-10 mg/kg with a 72 h interval (the first schedule) and 10 times in a dose of 0.4-1.7 mg/kg in 24 h (the second schedule). The first schedule exhibited the highest anticancer effect with the least toxicity. Blastolysin was found to depress erythropoiesis.  相似文献   
33.
34.
35.
36.
37.
Data on the chemical composition, nutritional value and caloricity of food ration used by the "Komsomolskaya Pravda" expedition during ski marches in the Arctics are reported. The rations consisted chiefly of dehydrated products and weighed 800-1000 g. The daily caloricity of the rations amounted to 3400 and 4400 great calories.  相似文献   
38.
Authors of article have recently analyzed the frequency of prevalence and risk factors of cross-reactivity to foodstuffs among 239 children of Abakan in the age of from 6 months till 15 years with skin, respiratory and combined manifestation of atopy. It was proved that risk factors of development of cross-reactivity to food among children of the first years of life are hereditary predisposition to allergic diseases (77.8%) and early introductions of supplemental feeding (44%). Among children older then 7 years pollen sensitization (62%) which preceded the development of cross allergic reactions between separate foodstuffs reaches up to 73.7%, between pollen and foodstuff up to 79% and between epidermal and food up to 10.1%.  相似文献   
39.
The decrease of calorie in ration content, insufficient consumption of proteins and lipids was found among the patients in the condition of penitentiary establishment, it results in decrease of characteristics of natural immunity and resistibility to various infections agents, to the action of toxic substances, stress and other negative conditions that take place in penitentiary establishment a disbalanse of regulatory subpopulation of cellular consistent of immunity and predominance of suppressive-cytotoxic influence was observed among the patients of the penitentiary establishment (with a reduced ration of nutrition) over halt a year. Considering a health problem, in the establishments of imprisonment one may probably state that a reduced ration of nutrition is one of the main courses of immune homeostasis shift leasing in the basis of specific and non-specific phenomena of morbidity.  相似文献   
40.
In article is discussed the information on properties of alcohol, distribution in organism, systems of oxidation, elimination, biological activity of ethanol and acetaldehyde, mechanisms of damaging action of an alcoholic intoxication.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号