相关实验视频
Updated: Jan 28, 2026

08:49
External Cephalic Version: Is it an Effective and Safe Procedure?
Published on: June 6, 2020
15.8K
阿尔德林:MAK价值文档,附录 - 翻译2023年起的德国版本
1Institute of Applied Biosciences. Department of Food Chemistry and Toxicology. Karlsruhe Institute of Technology (KIT) Adenauerring 20a, Building 50.41 76131 Karlsruhe Germany.
概括
欧盟不再批准的杀虫剂奥德林 (Aldrin) 的MAK值已被暂停. 由于重新评估没有很高的优先级,现在它被列为未经评估.
科学领域:
- 环境毒理学环境毒理学
- 职业健康 职业健康 职业健康 职业健康
背景情况:
- 奥德林是一种有机类杀虫剂,以前在全球范围内使用.
- 它的使用现在在欧盟被禁止.
- 关于其MAK值的现有文档已经过时了.
研究的目的:
- 重新评估阿尔德林的MAK值和分类.
- 根据当前的数据更新职业暴露限值.
主要方法:
- 对奥尔德林的当前毒理学数据的审查.
- 马克委员会进行的评估.
主要成果:
- 马克委员会确定,重新评估并不是优先事项.
- 暂停了阿尔德林的MAK值和其他分类.
- 阿尔德林被列在MAK和BAT值清单的第二部分 extit{c} 中.
结论:
- 由于停止使用和重新评估的优先级较低,Aldrin不再对MAK值进行评估.
- 暂停其MAK值反映了目前的监管状态和数据可用性.
相关概念视频
Translation
156.1K
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
156.1K
Initiation of Translation
38.9K
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
38.9K
Termination of Translation
27.6K
The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is the site where the peptide bond is formed - and a large, internal, water-filled tube through which the nascent polypeptide moves. This latter structure is called the Peptide Exit Tunnel, and it begins at the PTC and spans the body of the large ribosomal subunit. During translation, as the nascent polypeptide chain is synthesized, it passes through...
27.6K
Guidelines for Nursing Documentation I
1.8K
Quality documentation and reporting share essential characteristics that ensure they are practical and valuable resources for those who use them. These characteristics are:
Factual:
The following points emphasize the significance of upholding accurate and unbiased documentation in healthcare.
Factual:
The following points emphasize the significance of upholding accurate and unbiased documentation in healthcare.
1.8K
Methods of Documentation V: CBE
1.4K
Charting by Exception, or CBE, is a method of documentation used in healthcare, particularly in nursing, that focuses on documenting only significant or abnormal findings rather than recording every detail. This approach aims to streamline the documentation process, improve efficiency, and ensure that healthcare providers can quickly identify deviations from normalcy in patient assessments.
In CBE, healthcare professionals establish predefined standards of practice that define what constitutes...
In CBE, healthcare professionals establish predefined standards of practice that define what constitutes...
1.4K
Formats for Nursing Documentation
1.9K
Nursing documentation encompasses various formats designed to capture precise patient data, facilitate communication among healthcare team members, and ensure comprehensive and accurate patient records. Let's explore each of these formats in detail:
Nursing Assessment Form:
• A nursing assessment form is a foundational document that captures detailed patient data from physical assessments and nursing histories.
• It includes patient demographics, medical history,...
Nursing Assessment Form:
• A nursing assessment form is a foundational document that captures detailed patient data from physical assessments and nursing histories.
• It includes patient demographics, medical history,...
1.9K

