|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Hearing and Cochlear structures in a Swine Model显示文摘Objective To study the audition and inner ear structure in a normal swine model.Methods Auditory brainstem responses(ABRs) were determined in swine at 1 day and 1 month after birth.The form of the cochlea and hair cells were examined under a scanning electron microscope and on cochlear slices.Results ABR thresholds at 1 day and 1 month post-birth were between 40 and 50 dB SPL.The latencies of waves I,III and V in 1 day old swine were 1.97 ± 0.13,3.01± 0.16 and 4.26±0.20 ms,respectively.At 1 month,the lantancies of waves I,III and V were 2.01 ± 0.05,3.11±0.08 and 4.65 ± 0.14 ms,respectively,slightly longer than those at 1 day,although not statistically significant(p>0.05).The swine cochlea was constituted of 3 and a half turns and the cochlear hair cells lined up in four rows.Hair cell cilia in the apical turn were longer than those in other turns.Conclusions The swine cochlea is mature at the time of birth.Swine ABR thresholds are slightly higher than humans and rats.Swine appears to be a precocial animal species. | GUO Wei-wei1,Cheng Lei2,Liu Hui-zhan1,Sun Jian-he1,YANG Shi-ming1,1 Department of Otolaryngology,Head & Neck Surgery,Institute of Otolaryngology,Chinese PLA General Hospital,Beijing 100853,China 2 State Rey laboratory for Agrobio technology China Agrical universiy Beijing 100193,PR,China | 2010 | Journal of Otology2010，5，2： | 7 |
| 2 | Long-Term Impact of Soil Management on Microbial Biomass C, N and P in Rice-Based Cropping System显示文摘A 12-year field experiment was conducted to investigate the effect of different tillage methods and fertil- ization systems on microbial biomass C, N and P of a gray fluvo-aguic soil in rice-based cropping system. Five fertilization treatments were designed under conventional tillage (CT) or no tillage (NT) system: no fertilizer (CK); chemical fertilizer only (CF); combining chemical fertilizer with pig manure (PM); combining chemical fertilizer with crop straw (CS) and fallow (F). The results showed that biomass C, N and P were enriched in the surface layer of no-tilled soil, whereas they distributed relatively evenly in the tilled soil, which might result from enrichment of crop residue, organic manure and mineral fertilizer, and surficial development of root systems under NT. Under the cultivation system, NT had slightly greater biomass C, N and P at 0~5 cm depth, significantly less biomass C, N and P at 5~15 cm depth, less microbial biomass C, N and equivalent biomass P at 15 ~30 cm depth as compared to CT, indicating that tillage was beneficial for the multiplica tion of organisms in the plowed layer of soil. Under the fallow system, biomass C, N and P in the surface layer were significantly greater for NT than CT while their differences between the two tillage methods were negligible in the deeper layers. In the surface layer, biomass C, N and P in the soils amended with organic manure combined with mineral fertilizers were significantly greater than those of the treatments only with mineral fertilizers and the control. Soils without fertilizer had the least biomass nutrient contents among the five fertilization treatments. Obviously, the long-term application of organic manure could maintain the higher activity of microorganisms in soils. The amounts of biomass C, N and P in the fallowed soils varied with the tillage methods; they were much greater under NT than under CT, especially in the surface layer, suggesting that the frequent plowing could decrease the content of organic matter in the surface layer of the fallowed soil. | GAO YAJUN, HUANG DONGMAI, ZHU PEILI, WANG ZHIMING and LI SHENGXIU Soil and Fertilizer Institute, Jiangsu Academy of Agricultural Sciences, Nanjing 210014 (China) College of Resources and Environment, Northwestern Science and Technology University of Agric | 2001 | Pedosphere2001，11，4： | 4 |
| 3 | On the capillary forces in an ideal soil, correction of formulae given by WB Haines显示文摘 | Fisher R A Agric J | 1926 | Sci1926，16，492： | 1 |
| 4 | Relationship of egg parasitoids of rice planthoppers between rice and non-rice habitats显示文摘Egg parasitoids, Anagrus spp. and Oligositaspp. have been found to be important biological agents in suppressing rice planthoppers in Asian countries. However, most of these studies have been confined to conditions within rice fields. In this study, field surveys were made to study the floral and faunal diversity in various habitats surrounding rice fields. The rice and grass (Echinochloa spp.) plants were infested with 2 gravid females of brown planthopper Toya spp. or T. pusanus per tiller respectively for two days. The oviposited plants were:1) Rice plants bearing BPH eggs, 2) grass plants bearing BPH eggs, 3) grass plants bearing Toya spp eggs, and 4) grass plants bearing T. pusanus eggs. Above plants were placed in the rice field, the grassy area adjacent to rice fields and the grassy area away from rice fields, respectively. Potted plants with | YU Xiaoping,Zhejiang Acad Agri Sci,Hangzhou 310021,China China Heung KL.IRRI,Philippines Hu Cui,Zhejiang Agric Univ,Hangzhou 310029,China | 1996 | Chinese Rice Research Newsletter1996，4，3： | 1 |
| 5 | Distribution of volatile bran- ched chain fatty acids in various lamb tissues 显示文摘 | Volatile medium chain J Agric Food Chem Brennand C P Lindsay R C | 1992 | Meat Sci- ence1992，147，4： | 1 |
| 6 | Environmental risk factors for respiratory symptoms and childhood asthma显示文摘 | KASZNIA-KOCOT J KOWALSKA M GORNY RANN AGRIC | | 0，，02： | 1 |
| 7 | Lipoxygenases and the quality of foods 显示文摘 | Waldmann D Schreier P Agric J | 1995 | Food Chem1995，43，： | 1 |
| 8 | Aggregation of Peptides during Hydrolysis as a Cause of Reduced Enzymatic Extractability of soybean Meal proteins显示文摘 | Agric J | 2002 | Food Chemistry2002，，50： | 1 |
| 9 | Photodegradation of azole fungicide triadimeton显示文摘 | Nag S K Dureja P Agric J | 1997 | Food Chem1997，45，： | 1 |
| 10 | Logic and Conversation显示文摘 | aGrice P | 1975 | Syntax and Seman- tics Speech Acts1975，3，： | 1 |
| 11 | Selective radiolabeling of xylan in magnolia(Magnolia kobus)and visualization of its distribution in differentiating xylem by microautoradiography显示文摘 | Imai Terashima Sch Agric | 1992 | Determination of the distribution and reaction of polysaccharides in wood cell-walls by the isotope tracer technique1992，38，7： | 1 |
| 12 | Quantitative determination of the odorants of young red wines from different grape varieties显示文摘 | J Agric Food wines : Chem aroma 2002 Ferreira V Ricardo L Cacho JF | 2000 | Journal of the Science of Food and Agriculture2000，80，11： | 1 |
| 13 | International collaborative study of the endogenous reference gene, sucrose phosphate synthase(SPS), used for qualitative and quantitative analysis of genetically modified rice显示文摘 | AGRIC J | 2009 | Food Chem2009，57，： | 1 |
| 14 | Dioxins in food:A modem agricultural perspective显示文摘 | Huwe J K Agric J | 2002 | Food Chem2002，50，： | 1 |
| 15 | PrincipaI Phenolic Phytochemicals in Selected California Wines and Their Antioxidant Activity in Inhibiting Oxidation of Human Low-Density Lipoproteins显示文摘 | WATERHOUSE A TELSSEDRE P J AGRIC | 1995 | Food Chem1995，43，4： | 1 |
| 16 | Treatment of metritis with antibiotics or prostaglandin F2alpha and influence of ovarian cyclicity in dairy cows显示文摘 | Steffan J Agric M Adriamanga S | 1984 | Am J Vet Res1984，45，： | 1 |
| 17 | Losses in agriculture 显示文摘 | US Dept Agric Res Serr | 1995 | USOA Handbook1995，291，： | 1 |
| 18 | 淮北沿海中低产地区农业增产增效配套技术开发及应用显示文摘针对江苏省淮北沿海中低产地区盐碱土特点,以响水县老舍实验区为中心,通过水利建设与农艺措施相结合,递进改良盐碱土,综合运用种养业先进适用技术,优化农业内部结构,实现了该地区农业增产增效。 | “Coastal Saline-Sodic soil Amelioration Demonstration Test Centre Construction”Study Group(Science and Technology Extension Office, Jiangsu Agric,Coll.,Yangzhou 225009) | 1996 | 江苏农学院学报1996，17，1： | 0 |
| 19 | 浅析我国民事判决“执行难”显示文摘“执行难”是人民法院执行工作中的焦点问题,也是全社会普遍关注的一个热点话题。法学界对“执行难”的表现、原因、对策等的分析不尽一致。本文结合法学基本理论和我国法院的执行实践,系统地探讨了“执行难”的概念、特点、表现以及其形成原因,并对如何解决“执行难”问题进行了一些探讨。 | Agric | 2006 | 湖北教育学院学报2006，23，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员