Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Dehydration Synthesis01:15

Dehydration Synthesis

148.3K
Overview
Dehydration synthesis (also called a condensation reaction) is the chemical process in which two molecules covalently link together to form a new molecule, along with the release of a water molecule. Many physiologically important compounds form by dehydration synthesis reactions, such as complex carbohydrates, proteins, DNA, and RNA.
Synthesis of carbohydrates
Sugar molecules are covalently linked together by dehydration synthesis. During the reaction, the hydroxyl (-OH) group from...
148.3K
Osmosis00:47

Osmosis

192.5K
Approximately 60% to 95% of the weight of living organisms is attributed to water. Therefore, maintaining appropriate water balance within cells is of paramount importance. Osmosis is the movement of water across a semipermeable membrane, such as a cell’s plasma membrane. In living organisms, water plays a crucial role as a solvent—a molecule that dissolves other molecules.
192.5K
Osmosis01:30

Osmosis

10.4K
Osmosis is the movement of free water molecules through a semipermeable membrane.  The water's concentration gradient across the membrane is inversely proportional to the solutes' concentration. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane, and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion.
Water, like other substances, moves from a high concentration of...
10.4K
Torts III01:26

Torts III

961
Types of Quasi-intentional Torts in Healthcare
Quasi-intentional torts in healthcare involve acts where intent is not directed to harm an individual but results in harm due to careless or reckless speech.
961
Dry Friction01:30

Dry Friction

917
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
917
Wedges01:24

Wedges

1.6K
A wedge is a simple machine that serves various purposes, such as adjusting the elevation of structural or mechanical parts, providing stability for heavy objects, and splitting a body into two parts. This versatile tool can amplify an applied force, making it easier to manipulate large or heavy objects.
Consider using a wedge to lift a heavy slab. Here, the wedge functions by converting the applied force into a much larger force directed almost perpendicular to the initial force. This...
1.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Using Lotilaner Ophthalmic Solution, 0.25% to Treat <i>Demodex</i> Blepharitis in Patients Who Were Initially Misdiagnosed: A Case Series.

Clinical optometry·2026
Same author

Corrigendum to "TFOS DEWS III: Digest" Am J Ophthalmol. 2025; 279:451-553.

American journal of ophthalmology·2026
Same author

Clinical evidence on allogeneic blood-derived eye drops in ocular surface and corneal diseases.

The ocular surface·2026
Same author

The Role of the Boston Keratoprosthesis in Severe Ocular Surface Disease and Autoimmune Diseases.

Seminars in ophthalmology·2026
Same author

TFOS DEWS III.

American journal of ophthalmology·2025
Same author

TFOS DEWS III.

American journal of ophthalmology·2025
Same journal

Reply to Comment on Visual Field Progression in Glaucoma Patients with Delayed Follow-Up.

American journal of ophthalmology·2026
Same journal

Comment on: "Safety and efficiency reducing retinopathy of prematurity guideline sensitivity: an external validation using a large US-based dataset".

American journal of ophthalmology·2026
Same journal

Reply to Comment on "Clinicopathological and Imaging Distinction Between Ocular Adnexal MALT Lymphoma and IgG4-Related Ophthalmic Disease".

American journal of ophthalmology·2026
Same journal

Comment on: Visual Field Progression in Glaucoma Patients With Delayed Follow-Up.

American journal of ophthalmology·2026
Same journal

Corneal sensitivity changes and nerve plexus abnormalities in noninfectious anterior uveitis.

American journal of ophthalmology·2026
Same journal

Role of Menopausal Hormone Therapy on Strabismus, Strabismus Surgery, and Reoperation Rates.

American journal of ophthalmology·2026
查看所有相关文章

相关实验视频

Updated: Jan 14, 2026

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules
10:45

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules

Published on: June 20, 2020

10.8K

美国联邦基金管理法第III条

James S Wolffsohn1, José Benítez-Del-Castillo2, Denise Loya-Garcia3

  • 1From the Optometry and Vision Science, College of Health and Life Sciences, Aston University, Birmingham, UK.

American journal of ophthalmology
|October 19, 2025
PubMed
概括
此摘要是机器生成的。

这项研究确定了干眼疾病 (DED) 的关键诊断标志物. 对于有效诊断DED而言,诸如撕裂度和非侵入性断裂时间之类的客观指标至关重要.

关键词:
亚型 亚型的 亚型亚型分类 亚型分类定义定义的定义.干眼病 (DED) 是指干眼病.板腺功能障碍 (MGD) 是一种缘炎症的原因诊断 诊断 是一个诊断.鉴别诊断 鉴别诊断 鉴别诊断

更多相关视频

A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System
12:37

A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System

Published on: March 15, 2011

24.9K
Using Deuterium Oxide as a Non-Invasive, Non-Lethal Tool for Assessing Body Composition and Water Consumption in Mammals
08:22

Using Deuterium Oxide as a Non-Invasive, Non-Lethal Tool for Assessing Body Composition and Water Consumption in Mammals

Published on: February 20, 2020

7.9K

相关实验视频

Last Updated: Jan 14, 2026

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules
10:45

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules

Published on: June 20, 2020

10.8K
A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System
12:37

A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System

Published on: March 15, 2011

24.9K
Using Deuterium Oxide as a Non-Invasive, Non-Lethal Tool for Assessing Body Composition and Water Consumption in Mammals
08:22

Using Deuterium Oxide as a Non-Invasive, Non-Lethal Tool for Assessing Body Composition and Water Consumption in Mammals

Published on: February 20, 2020

7.9K

科学领域:

  • 眼科医生 眼科 眼科
  • 眼睛表面疾病 眼睛表面疾病

背景情况:

  • 干眼病 (DED) 是一种影响眼睛表面的普遍疾病.
  • 眼膜和眼部表面学会 (TFOS) 干眼研讨会 (DEWS III) 在2017年提供了更新的DED指南.

研究的目的:

  • 评估和定义干眼疾病的客观诊断标准.
  • 确定与DED相关的关键临床症状的门值.

主要方法:

  • 分析患者数据,包括眼部表面疾病指数 (OSDI-6) 评分.
  • 测量非侵入性撕裂破裂时间 (NIBUT).
  • 撕裂度水平的评估.

主要成果:

  • 超过4的OSDI-6得分与DED有关.
  • <10秒的非侵入性断裂时间 (NIBUT) 表示DED.
  • 眼度值≥308mOsm/L (右眼) 和>328mOsm/L (左眼) 被确定为显著.

结论:

  • 客观措施对于诊断干眼疾病至关重要.
  • 特定的NIBUT和撕裂度值可以帮助诊断DED.
  • 这些标准符合当前对DED管理的理解和指导方针.