Amnesic shellfish poisoning toxins in bivalve molluscs in Ireland

In December 1999, domoic acid (DA) a potent neurotoxin, responsible for the syndrome Amnesic Shellfish Poisoning (ASP) was detected for the first time in shellfish harvested in Ireland. Two liquid chromatography (LC) methods were applied to quantify DA in shellfish after sample clean-up using solid-phase extraction (SPE) with strong anion exchange (SAX) cartridges. Toxin detection was achieved using photodiode array ultraviolet (LC-UV) and multiple tandem mass spectrometry (LC-MSⁿ). DA was identified in four species of bivalve shellfish collected along the west and south coastal regions of the Republic of Ireland.

The amount of DA that was present in three species was within EU guideline limits for sale of shellfish (20 μg DA/g); mussels (Mytilus edulis), <1.0 μg DA/g; oysters (Crassostrea edulis), <5.0 μg DA/g and razor clams (Ensis siliqua), <0.3 μg DA/g. However, king scallops (Pecten maximus) posed a significant human health hazard with levels up to 240 μg DA/g total tissues. Most scallop samples (55%) contained DA at levels greater than the regulatory limit. The DA levels in the digestive glands of some samples of scallops were among the highest that have ever been recorded (2820 μg DA/g).     

基于Web的学生成绩管理系统设计与实现

介绍由作者开发完成的“学生成绩网络管理系统”的设计思想、主要功能及关键技术。     

ASP活动服务器页面

本文通过对Ａｔｉｖｅ Ｓｅｒｖｅｒ Ｐａｇｅｓ的讨论,介绍用Ａｃｔｉｖｅ Ｓｅｒｖｅｒ Ｐａｇｅｓ在服务器上调用任何ＯＬＥ服务器应用程序去处理请求,并将以Ｈｔｍｌ格式输入,ＡＳＰ利用ＡＤＯ方便地访问数据库,从而使得开发基于ＷＷＷ的应用系统。     

基于ASP技术的安全研究

随着Internet和Intranet技术的发展,ASP已成为Windows环境下首选的网站开发和编程技术.但我们也应该看到ASP从一开始就一直受到众多漏洞的困扰.文章通过介绍常见提供ASp服务操作系统的漏洞和ASP程序的漏洞,详细阐述了ASP网站安全问题,并给出了相应的解决方法和建议.     

基于ASP技术的遵义医学院60周年校庆网站的设计与实现

1网站的需求分析 因遵义医学院六十周年校庆需要，结合组织校庆活动的相关部门在这次活动期间担任工作的实际情况，网站应该具有如下功能：①普通浏览者能通过页面查询和快速查询两种方式查看校庆信息，校友可以以普通浏览者的身份编写校友祝福和联系信息，编写祝福语通过院办信息员或系统管理员审核后才能在校庆主页上显示，院办信息员可以通过所留的校友信息恭请校友参加校庆活动。     

基于Web的体检信息系统设计与应用

本课题运用ASP技术和网络数据库原理,基于B/S模式而开发的体检信息管理系统。该系统的开发和应用,可以使查体者足不出户,就可上网查询个人的体检信息和获得健康咨询服务,既方便快捷,又能很好地保护个人隐私。     

基于ASP.NET的B/S架构下的项目管理系统的网络安全模式设计

本品含盐酸伪麻黄碱（C10H15NO·HCl）与布洛芬（C13H18O2）均应为标示量的90．0％～110．0％。 [性状]本品为双层片，一层为白色，另一层为棕红色。     

Potential bias in Generalized Estimating Equations linkage methods under incomplete information

The mean identity-by-descent (IBD) specification used in the Generalized Estimating Equations (GEE) methodology for linkage is only valid, strictly speaking, under the assumption of fully polymorphic markers. In practice, markers often provide only partial IBD information, which can potentially result in inconsistency of the locus location and gene effect estimates obtained by the GEE method. Using both simulations and theory, we identify some realistic conditions about marker information under which the validity of the GEE linkage methods may be arguable. Namely, researchers should not trust the GEE parameters' estimates and their associated confidence intervals in areas of the genome where IBD information is sparse or when this information changes abruptly. We show that properly standardized statistics based on IBD sharing provide a valid alternative.     

Planar strip array (PSA) for MRI.

Parallel, spatial-encoded MRI requires a large number of independent detectors that simultaneously acquire signals. The loop structure and mutual coupling in conventional phased arrays limit the number of coils and therefore the potential reduction in minimum scan time achievable by parallel MRI tchniques. A new near-field MRI detector array, the planar strip array (PSA), is presented that eliminates the coupling problems and can be extended to a very large number of detectors and high MRI frequencies. Its basic structure is an array of parallel microstrips with a high permittivity substrate and overlay. The electromagnetic (EM) wavelength can be adjusted with the permittivity, and the strip lengths tuned to a preselected fraction of the wavelength of the MRI frequency. EM wave analysis and measurements on a prototype four-element PSA reveal that the coupling between the strips vanishes when the strip length is either an integer times a quarter wavelength for a standing-wave PSA, or a half wavelength for a travelling-wave PSA, independent of the spacing between the strips. The analysis, as well as phantom and human MRI experiments performed by conventional and parallel-encoded MRI with the PSA at 1.5 T, show that the decoupled strips produce a relatively high-quality factor and signal-to-noise ratio, provided that the strips are properly terminated, tuned, and matched or coupled to the preamplifiers. Magn Reson Med 45:673-683, 2001.     

基于Web的证券数据库查询系统的实现

探讨了Internet/Intranet上实现数据库发布的几种解决方案的不同特点,详细地阐述了ASP/ADO技术在开发基于Web的证券信息数据库查询系统中的应用,同时给出了不同数据库系统之间进行转换的技术.