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1.
植物生态学报 创刊于 195 5年,是我国生态学领域创刊最早的专业性学术刊物。由中国科学院主管,中国科学院植物研究所和中国植物学会主办。最初为 植物生态学与地植物学资料丛刊 ,1963年正式为第一卷号 植物生态学与地植物学丛刊 ,1986年改为 植物生态学与地植物学学报 ,19  相似文献   

2.
全国“植物生态学、地植物学”基础讲习班于1982年11月1—23日在河南郑州举办。为了振兴中华,使植物生态学、地植物学更好地服务于农、林、牧、渔各业区划需要,以及提高从事于农、林、牧、渔、环境保护等学科的科技人员,尤其是年青的科技人员的植物生态学、地植物学和生态系统学的基本理论、基础知识和学习有关的工作方法,早在1979年,以侯学煜教授为首的老一辈的科学家倡议,拟在哈尔滨举办这个讲习班,后因被聘请任教的多数教师先后出国考察和工作,讲习班未能如期开办。1981年12月,在河南安阳市召开的全国植被图学术工作会议上决定,1982年第四季度在河南举办。  相似文献   

3.
由中国植物学会、上海市植物学会、浙江植物学会联合举办的华东区“植物生态学和地植物学”学习班于1984年7月1日在浙江省东部宁波市鄞县天童山国家森林公园开学,历时25天。植物生态学和地植物学是工农业布局、国土整治、生物资源合理利用和保护的理论基础。当前华东地区的工、农、林、牧、副、渔、特各业及其城市、乡镇的建设都在迅猛发展。陆地、水域、城市、乡镇的生态系统以及自然景观都存在着向良性发展或者朝恶性变化的  相似文献   

4.
《植物生态学报》2005,29(1):F002-F002
《植物生态学报》,原名《植物生态学与地植物学丛刊》,1955年创刊,1986年改为《植物生态学与地植物学学报》,1994年改为 《植物生态学报》,是我国生态学领域创刊最早的专业性学术刊物,深受国内外读者的欢迎和赞誉。国内外公开发行。 栏目 综述 刊登有新观点的、国际植物生态学领域的、国内外最新的研究进展。 研究论文 发表植物生态学(包括种群、群落和生态系统生态学、植被与数量生态、生理生态、化学生态、污染生态、景观生态及当  相似文献   

5.
本刊——《植物生态学与地植物学丛刊》先后由钱崇澍、李继侗、侯学煜光生负责主编是中国植物学会编辑、科学出版社出版的。它的前身是《植物生态学与地植物学资料丛刊》,创始于1955年,原为每号专载论文一篇,至1957年共出版了18号。后因稿件增多改为合辑,至1960年共出版了4辑。1963年将《植物生态学与地植物学资料丛刊》改为《植物生态学与地植物学丛刊》,并由不定期刊改为半年定期期刊,1966年停刊。停刊前已出版了4卷7期,刊载文章共130余篇。  相似文献   

6.
《植物生态学报》 ,原名《植物生态学与地植物学丛刊》 ,1 955年创刊 ,1 986年改为《植物生态学与地植物学学报》 ,1 994年改为《植物生态学报》 ,是我国生态学领域创刊最早的专业性学术刊物 ,深受国内外读者的欢迎和赞誉。国内外公开发行。栏 目综  述 刊登有新观点的、国际植物生态学领域的、国内外最新的研究进展。研究论文 发表植物生态学 (包括种群、群落和生态系统生态学、植被与数量生态、生理生态、化学生态、污染生态、景观生态及当前国际生态学研究热点。如生物多样性、全球变化、土地荒漠化、生态系统恢复与重建、可持续发…  相似文献   

7.
《植物生态学报》2004,28(6):F002-F002
《植物生态学报》 ,原名《植物生态学与地植物学丛刊》 ,195 5年创刊 ,1986年改为《植物生态学与地植物学学报》 ,1994年改为《植物生态学报》 ,是我国生态学领域创刊最早的专业性学术刊物 ,深受国内外读者的欢迎和赞誉。国内外公开发行。栏 目综  述 刊登有新观点的、国际植物生态学领域的、国内外最新的研究进展。研究论文 发表植物生态学 (包括种群、群落和生态系统生态学、植被与数量生态、生理生态、化学生态、污染生态、景观生态及当前国际生态学研究热点。如生物多样性、全球变化、土地荒漠化、生态系统恢复与重建、可持续发展…  相似文献   

8.
(www.plant_ecology.com)《植物生态学报》,原名《植物生态学与地植物学丛刊》,1955年创刊,1986年改为《植物生态学与地植物学学报》,1994年改为《植物生态学报》,是我国生态学领域创刊最早的专业性学术刊物,深受国内外读者的欢迎和赞誉。国内外公开发行。栏目综述刊登有新观点的、国际植物生态学领域的、国内外最新的研究进展。研究论文发表植物生态学(包括种群、群落和生态系统生态学、植被与数量生态、生理生态、化学生态、污染生态、景观生态及当前国际生态学研究热点。如生物多样性、全球变化、土地荒漠化、生态系统恢复与重建、可持续…  相似文献   

9.
(www .plant_ecology .com)《植物生态学报》 ,原名《植物生态学与地植物学丛刊》 ,195 5年创刊 ,1986年改为《植物生态学与地植物学学报》 ,1994年改为《植物生态学报》 ,是我国生态学领域创刊最早的专业性学术刊物 ,深受国内外读者的欢迎和赞誉。国内外公开发行。栏 目综  述 刊登有新观点的、国际植物生态学领域的、国内外最新的研究进展。研究论文 发表植物生态学 (包括种群、群落和生态系统生态学、植被与数量生态、生理生态、化学生态、污染生态、景观生态及当前国际生态学研究热点。如生物多样性、全球变化、土地荒漠化、生态系…  相似文献   

10.
(www.plant-ecology.com)《植物生态学报》,原名《植物生态学与地植物学丛刊》,1955年创刊,1986年改为《植物生态学与地植物学学报》,1994年改为《植物生态学报》,是我国生态学领域创刊最早的专业性学术刊物,深受国内外读者的欢迎和赞誉。国内外公开发行。栏目综述刊登有新观点的、国际植物生态学领域的、国内外最新的研究进展。研究论文发表植物生态学(包括种群、群落和生态系统生态学、植被与数量生态、生理生态、化学生态、污染生态、景观生态及当前国际生态学研究热点。如生物多样性、全球变化、土地荒漠化、生态系统恢复与重建、可持续…  相似文献   

11.
A new polynitro cage compound 2, 4, 6, 8, 10, 12, 13, 14, 15-nonanitro-2, 4, 6, 8, 10, 12, 13, 14, 15-nonaazaheptcyclo [5.5.1.1(3,11).1(5,9)] pentadecane (NNNAHP) was designed in the present work. Its molecular structure was optimized at the B3LYP/6-31 G(d,p) level of density functional theory (DFT) and crystal structure was predicted using the Compass and Dreiding force fields and refined by DFT GGA-RPBE method. The obtained crystal structure of NNNAHP belongs to the P-1 space group and the lattice parameters are a = 9.99 ?, b = 10.78 ?, c = 9.99 ?, α = 90.01°, β = 120.01°, γ = 90.00°, and Z = 2, respectively. Based on the optimized crystal structure, the band gap, density of state, thermodynamic properties, infrared spectrum, strain energy, detonation characteristics, and thermal stability were predicted. Calculation results show that NNNAHP has detonation properties close to those of CL-20 and is a high energy density compound with moderate stability.  相似文献   

12.
Summary Concentration of N, P, K, Ca, Mg and S in summer groundnut crop was higher than in kharif while Zn, Fe, Mn and Cu contents were higher in summer crop. Kernel's N, P and Zn; Leaflet's Ca and Mn; Stem's K and Fe; Root's S and Cu and Petiole's Mg contents were highest. Shell's N, P, K, Mg, S, Zn and Cu; Kernel's Ca, Fe and Mn contents were the least. N, P, K, S, Zn and Cu concentrations decreased linearly as the crop grew. Ca, Mg, Fe and Mn concentrations did not display any distinct pattern. Ca concentration was positively correlated with pod yield in both the seasons.  相似文献   

13.
14.
The variation with age of the 18 trace element mass fractions and some histological characteristics of intact prostate glands of 50 subjects aged 0–30 years was investigated by instrumental neutron activation analysis, inductively coupled plasma atomic emission spectrometry, and a quantitative morphometric analysis. Mean values ± standard error of the mean (M ± SΕΜ) for the mass fractions (in milligrams per kilogram wet tissue) of these trace elements in pre-puberty were: Al 28.5 ± 9.0, B 0.40 ± 0.11, Ba 1.48 ± 0.44, Br 10.5 ± 1.5, Ca 241 ± 30, Cl 3,203 ± 278, Cu 3.51 ± 0.89, Fe 33.7 ± 4.1, K 2,364 ± 145, Li 0.020 ± 0.004, Mg 153 ± 23, Mn 0.46 ± 0.06, Na 2,286 ± 130, P 1,391 ± 100, S 1,698 ± 132, Si 62 ± 11, Sr 0.38 ± 0.08, and Zn 27.6 ± 2.3. During puberty and postpuberty, when there is a significant increase in circulating androgens, the mean values were: Al 7.2 ± 1.4, B 0.21 ± 0.05, Ba 0.25 ± 0.06, Br 5.8 ± 1.0, Ca 433 ± 81, Cl 2,314 ± 201, Cu 1.77 ± 0.13, Fe 20.9 ± 1.6, K 2,585 ± 118, Li 0.0088 ± 0.0014, Mg 232 ± 27, Mn 0.34 ± 0.04, Na 1,875 ± 107, P 1,403 ± 98, S 1,673 ± 73, Si 22.2 ± 3.1, Sr 0.22 ± 0.03, and Zn 93.3 ± 8.9. Mean values (M ± SΕΜ) of percent volumes (%) of the stroma, epithelium and lumen in the prostate before puberty were 73.4 ± 2.6, 20.4 ± 1.7, and 4.45 ± 0.94, respectively, versus 46.5 ± 2.5, 38.5 ± 1.9, and 14.9 ± 1.2 during puberty and postpuberty. This work’s results confirm that the Zn mass fraction in prostate tissue is an androgen-dependent parameter. For the first time it has been demonstrated that the glandular lumen is a main pool of Ca, Mg, and Zn accumulation and that the stroma is a main pool of Al, B, Ba, Br, Cl, Cu, Fe, Mn, Na, and Si accumulation in the normal human prostate, for the age range 0–30 years. It was concluded that the Ca, Mg, and Zn binds tightly within the prostatic fluid, because the volume of glandular lumen reflects the volume of prostatic fluid.  相似文献   

15.
The goal of this article was to establish reference ranges of the concentration of trace elements in human serum and to compare these results with those reported by other authors. We describe the sample preparation and measurement conditions that allow the rapid, precise, and accurate determination of Al, As, B, Be, Cd, Co, Cu, Fe, Li, Mn, Mo, Ni, Rb, Se, Sr, and Zn in human serum samples (n=110) by inductively coupled plasma-mass spectrometry (ICP-MS). Accuracy and precision were determined by analyzing three reconstituted reference serum samples by comparison with other methods and by the standard addition procedure. The advantages of the ICP-MS method include short time of analysis of the elements mentioned, low detection limit, high precision, and high accuracy. Disadventages include a high risk of contamination due to the presence of some of the elements of interest in the environment, the relatively delicate sample handling, and the high cost of the equipment.  相似文献   

16.
This report attempts to formulate reference ranges of elemental concentrations for 15 trace elements in selected human tissues and body fluids. A set of samples consisting of whole blood, blood serum, urine, milk, liver, and hair were chosen and considered for 15 elements of biological significance: As, Cd, Co, Cr, Cu, F, Fe, I, Hg, Mn, Mo, Ni, Pb, Se, and Zn. The results represent wholly or partially data received from 40 countries of the global regions of Africa, Asia, Europe, North, South, and Central America, Australia, and New Zealand. This survey, even if qualitative, has been useful in demonstrating certain trends of trace-element scenarios around the world. It is of course recognized that both diet and environment exert a strong influence on the distribution pattern of several elements, such as As, Cd, Mn, Pb, Se, and Zn. A limited comparison of the available information on soil status of different countries reflected some interesting associations for elements, such as Mn and Zn. Importantly, this study revealed that only a few countries were in a position to identify a reasonable amount of data on samples requested for this project. Regretably, for a number of countries, any dependable data for even such essential elements as Cu, Fe, and Zn were not available. In view of the nutritional importance of many elements, the time is ripe for concerted efforts by intergovernmental agencies to initiate investigations or commission task forces/projects to generate reliable reference data for selected global regions, which sadly lack data of any kind at present.  相似文献   

17.
The effect of age and gender on major, minor, and trace element contents in the intact rib bone of 80 relatively healthy 15–55-year-old women and men was investigated. Contents or upper limit of contents of 16 chemical elements in the rib bone were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Mean values (M?±?SΕΜ) for the mass fraction of Ba, Ca, Cu, Fe, K, Li, Mg, Na, P, S, Sr, and Zn (milligram per kilogram of dry bone) were as follows: 2.54?±?0.16, 171,400?±?4,050, 1.35?±?0.22, 140?±?11, 1,874?±?71, 0.049?±?0.011, 2,139?±?38, 5,378?±?88, 75,140?±?1,660, 1,881?±?51, 291?±?20, and 92.8?±?1.5, respectively. The upper limits of contents of Al, B, Mn, and V were <7.20, <0.65, <0.36, and <0.03, respectively. Statistically significant tendency for the Ca, Mg, and P content to decrease with age was found in the human rib bone, regardless of gender. The mass fraction of Fe in the male rib bone increases with age. It was shown that higher Ca, Mg, Na, P, and Sr mass fractions as well as lower Fe content were typical of female ribs as compared to those in male ribs.  相似文献   

18.
《Ibis》1894,36(3):447-460
  相似文献   

19.
20.
Oral cancer is one of the main causes of cancer-related deaths in South-Asian countries. There are very limited treatment options available for oral cancer. Research endeavors focused on discovery and development of novel therapies for oral cancer, is necessary to control the ever rising oral cancer related mortalities. We mined the large pool of compounds from the publicly available compound databases, to identify potential therapeutic compounds for oral cancer. Over 84 million compounds were screened for the possible anti-cancer activity by custom build SVM classifier. The molecular targets of the predicted anti-cancer compounds were mined from reliable sources like experimental bioassays studies associated with the compound, and from protein-compound interaction databases. Therapeutic compounds from DrugBank, and a list of natural anti-cancer compounds derived from literature mining of published studies, were used for building partial least squares regression model. The regression model thus built, was used for the estimation of oral cancer specific weights based on the molecular targets. These weights were used to compute scores for screening the predicted anti-cancer compounds for their potential to treat oral cancer. The list of potential compounds was annotated with corresponding physicochemical properties, cancer specific bioactivity evidences, and literature evidences. In all, 288 compounds with the potential to treat oral cancer were identified in the current study. The majority of the compounds in this list are natural products, which are well-tolerated and have minimal side-effects compared to the synthetic counterparts. Some of the potential therapeutic compounds identified in the current study are resveratrol, nimbolide, lovastatin, bortezomib, vorinostat, berberine, pterostilbene, deguelin, andrographolide, and colchicine.  相似文献   

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