检索结果-南通市图书馆

Mechanism of fluorescent cocoon sex identification for silkworms Bombyx mori

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2010年第11期53卷 1330-1339页

作者： ZHANG YuQing1,2, YU XiaoHua1,2, SHEN WeiDe1,2, MA YongLei1,2, ZHOU LiXia1,2, XU NaiXi1,2 & YI ShuQian1,2 1State Engineering Laboratory of Modern Silk, Soochow University, Suzhou 215123, China 2Silk Biotechnology Key Laboratory of Suzhou City, Medical College of Soochow University, Suzhou 215123, China 1. State Engineering Laboratory of Modern Silk Soochow University Suzhou 215123 China2. Silk Biotechnology Key Laboratory of Suzhou City Medical College of Soochow University Suzhou 215123 China

By using silkworms,Bombyx mori, fluorescent cocoon sex identification (FCSI) as an experimental material, direct fluorescence spectrometry of the cocoon surface indicates that the fluorescent color of silkworm cocoons is made up of two peaks of yellow and blue-purple fluorescence emission. The fluorescent difference between male and female cocoons is attributed to the differential absorption of yellow fluorescent substances by the midgut tissue of 5th instar female silkworms. Thin layer chromatography (TLC) and fluorescent spectra indicate that blue-purple fluorescent substances are composed of at least five blue-purple fluorescent pigments, and yellow fluorescent substances are made up of at least three. UV spectra and AlCl3 color reaction show that the three fluorescent yellow pigments are flavonoids or their glycosides. Silkworm FCSI is due to selective absorption or accumulation of the yellow fluorescent pigments by the posterior midgut cells of female 5th instar larvae. The cells of the FCSI silkworm midgut, especially the cylinder intestinal cells of the posterior midgut have a component which is a yellow fluorescent pigment-specific binding protein that may be vigorously expressed in the 5th instar larvae.

关键词： silkworm fluorescence cocoon sex identification pigment midgut accumulation

Idiopathic abdominal cocoon syndrome with unilateral abdominal cryptorchidism and greater omentum hypoplasia in a young case of small bowel obstruction

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2016年第20期22卷 4958-4962页

作者： Xiang Fei Hai-Rui Yang Peng-Fei Yu Hai-Bo Sheng Guo-Li Gu Department of General Surgery the Air Force General Hospital Chinese PLA Department of Urinary Surgery the Air Force General Hospital Chinese PLA

Abdominal cocoon syndrome(ACS) is a rare cause of intestinal obstruction due to total or partial encapsulation of the small intestine by a fibrocollagenous membrane. Idiopathic ACS with abdominal cryptorchidism and greater omentum hypoplasia is even rarer clinically. We successfully treated a 26-year-old male case of small bowel obstruction with acute peritonitis. He was finally diagnosed with idiopathic ACS with unilateral abdominal cryptorchidism and greater omentum hypoplasia during exploratory laparotomy. He then underwent enterolysis, cryptorchidectomy, and appendectomy. He recovered gradually from the operations and early postoperative inflammatory ileus. There has been no recurrence of intestinal obstruction since the operation, and he is still in follow-up. We analyzed his clinical data and retrospectively reviewed the literature, and our findings may be helpful for the clinical diagnosis and treatment on ACS.

关键词： Abdominal cocoon syndrome Abdominal cryptorchidism Intestinal obstruction Diagnosis Treatment

Rare etiology of mechanical intestinal obstruction: Abdominal cocoon syndrome

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2014年第11期2卷 728-731页

作者： Yener Uzunoglu Fatih Altintoprak Omer Yalkin Yasemin Gunduz Guner Cakmak Orhan V Ozkan Fehmi Celebi Departmentof General Surgery Sakarya University Research and Educational Hospital 54100 Sakarya Turkey Department of General Surgery Faculty of Medicine Sakarya University 54100 Sakarya Turkey Department of Radiology Faculty of Medicine Sakarya University 54100 Sakarya Turkey

Abdominal cocoon syndrome is a rare cause of intestinal obstruction with unknown etiology. Diagnosis of this syndrome, which can be summarized as the small intestine being surrounded by a fibrous capsule not containing the mesothelium, is difficult in the preoperative period. A 47-year-old male patient was referred to the emergency department with complaints of abdominal pain, nausea, and vomiting for two days. The abdominal computed tomography examination detected dilated small intestinal loops containing air-fluid levels clustered in the left upper quadrant of the abdomen and surrounded by a thick, saclike, contrast-enhanced membrane. During exploratory surgery, a capsular structure was identified in the upper left quadrant with a regular surface that was solid-fibrous in nature. Ab-dominal cocoon syndrome is a rarely seen condition, for which the preoperative diagnosis is difficult. The combination of physical examination and radiological signs, and the knowledge of "recurrent characteristics of the complaints" that can be learned by a careful history, may be helpful in diagnosis.

关键词： Intestinal obstruction Abdominal cocoon syndrome Preoperatively diagnosis Adult patient

ANALYSISES OF GENE EFFECTS ON SOME cocoon CHARACTERS IN SILKWORM MORIL

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生物数学学报 1994年第4期9卷 10-17页

作者： Duan Jialong Zhu Jun (Anhui Agricultulal University,Hefei 230061,Anhui)(Zhejia Agricultural Uuiversity,Hangzhou 310029,Zhejiang)

*** of genetic variance and covariance for individual characters showed that cocoon weight was controlled by both gene direct effect and maternal effect;cocoon shell weight was controlled by gene direct effect mainly;cocoon shell ratio was mainly due to maternal effect and se x-linked *** of genetic covariance components of each pair of ch aracters indicated that there were high significant positive relationships among most of genetic effects except maternal additive effect in cocoon weight and cocoon shell *** was a high positive relationship idirect effect between cocoon weight and cocoon shell ratio,but in cytop lasm effect and maternal effect were high negative relationships between *** there were high positive relationships in direct effect and maternal dominance between cocoon shell weight and cocoon shell *** of gene effects pointed out that sex-chromosome effects （Σi8=1Lii） on cocoon weight and cocoon shell weight both were lar ger positive values,that means cocoon weight and cocoon shell weight of females are generally higher than those of males in Silkworm. Standardized donmiance directions of direct effects on cocoon weight and cocoon shell weight were high positive values,but standardized domiance directieon of maternal effects on both of them were high negative values,it showed the two characters had larger heterosis in F1 generation and depressed in F2 ***-chromosome effect （Σi8=1Lii） on cocoon she11 ratio was high negative value,explaining that females usually have lower cocoon shell ratio than *** domiance directions of direct effect and maternal effect on cocoon shell ratio were not significant,predicting that the heterosis of cocoon shell ratio in F1 generation is not obvious comparing to cocoon weight and cocoon shell weight.

关键词： Silkworm cocoon characters Genetical Analysis

Breeding of a Natural Green cocoon Quaternary Hybrid Combination Xiangcailu No.1 for Spring Rearing

在线全文

学校读者我要写书评

暂无评论

Agricultural Biotechnology 2019年第4期8卷 14-18,25页

作者： Hong XUE Junwen AI Yanghu SIMA Xingjian HE Changwen LIU Ying ZHENG Yong LIU Yun TANG Sericultural Research Institute of Hunan Province Changsha 410127China Soochow University Suzhou 215123China

The breeding activities aimed to create a natural green cocoon variety for spring rearing with the characteristics of stable natural cocoon color,easy rearing and good silk *** different lines from the excellent silkworm variety Jingsong×Haoyue were taken as recurrent parents,using the natural green cocoon variety G 9202 as donor *** other excellent parents were introduced to cross with these different lines,four new breeding materials were selected by recurrent backcross *** characters of these breeding materials showed not only natural green cocoon but also excellent comprehensive traits.A naturally colored cocoon quaternary hybrid with excellent practical characters was selected based on multiple *** is suitable for spring rearing in Yangtze valley which includes Hunan *** was approved by Hunan Provincial Crop Variety Approval Committee and designated Xiangcailu No.1 in 2016.

关键词： Silkworm Xiangcailu No.1 Recurrent backcross breeding Natural green cocoon Spring rearing Easy rearing Excellent silk quality

RESEARCH ON COMPUTER TESTING OF THE DYNAMIC DISSOCIATING TENSION OF COOKED cocoon FILAMENT

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

苏州大学学报（工科版） 1990年第S1期15卷 17-25页

作者：费万春

This paper discussed the setting up of a comeuter automatic system for testing the dy-namic dissociating tension of cooked cocoon filament by means of microcomputer *** dynamic dissociating tension of two kinds of row cocoons with differentreelability was tested and analysed under different cocoon cooking *** relia-ble data have been obtained by quantitative *** conclusions reached by analysingthese data are of practical significance to perfecting the cocoon cooking theory,assessingcocoon quality,improving the cocoon cooking process,etc.

关键词： computer testing cocoon cooking dynamic dissociating tension

A DEVELOPING TOOL FOR THE EXPERT SYSTEM IN TECHNOLOGY DESIGN AND EXPERT SYSTEM FOR cocoon COOKING

在线全文

学校读者我要写书评

暂无评论

苏州大学学报（工科版） 1991年第S1期16卷 43-54页

作者：卢敏生

This paper demonstrates the general character of some technology designing processes through their analysisand introduces a developing tool for the expert system in technology *** this tool a particular domain ex-pert can directly establish a knowledge base so as to form a practical expert system,and thus enhanca correctness ofknowledge experssion and the developing efficiency of the expert *** also discusses in detail the mech-anism of reasoning,interpreting and knowledge *** knowledge base consists of three parts:classifyingrules,essential data,and regulating *** can be formed by means of the expert dialouge and *** its ap-plication,the knowledge base can constantly accumulate successful experience to achieve itsself-study *** paper shows the way to describe the knowledge in a particular domain and the process of applying this tool ina particular domain. The tool is written in Turb-Prolog language,And an expert system for cocoon cooking isprovided.

关键词： Computer application developing tool for expert system inverse reason knowledge base cocoon cooking technology design.

Study on the Feltproof of Wool/cocoon Stripping Blending Fabric

在线全文

学校读者我要写书评

暂无评论

Journal of China Textile University(English Edition) 2000年第4期17卷 95-98页

作者：刘世春王善元

A new method is presented to prevent the wool fabric from shrinking effectively by using cocoon stripping blended with wool fiber. The sericin of cocoon stripping is used as resin to bond the wool fiber together after heat setting. The factors affecting the effect of shrinkproofing is heat setting temperature, wool/cocoon stripping blending ratio, cover factor, regain of fabric. Temperature of heat setting and the blending ratio of cocoon stripping are the two key factors. This method does not pollute the environment, and almost has no damage on wool fiber.

关键词： wool bond cocoon striplings shrinkage sericin

基于cocoon框架的网页自适应转换模型研究

在线全文

学校读者我要写书评

暂无评论

西南大学学报（自然科学版） 2008年第5期30卷 173-176页

作者：杨灵芝唐雁西南大学计算机与信息科学学院重庆400715

针对大多数WEB资源不能被无线访问或访问效果差的问题,提出了一种基于cocoon框架的网页自适应转换模型,通过加入设备自适应性转换器,实现了使用支持XHTML MP格式的移动终端设备访问互联网资源功能.模型中的核心管道添加了一个自适应转换... 详细信息

针对大多数WEB资源不能被无线访问或访问效果差的问题,提出了一种基于cocoon框架的网页自适应转换模型,通过加入设备自适应性转换器,实现了使用支持XHTML MP格式的移动终端设备访问互联网资源功能.模型中的核心管道添加了一个自适应转换器,该转换器通过构建对象模型、分割对象及重组资源,解决了小屏幕设备上显示Web网页下拉操作过长、布局不合理、表格嵌套混乱等问题,保持了良好的语义完整性和适用性.

关键词：网页转换可扩展超文本标记语言 cocoon 自适应性