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

Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

15.2K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
15.2K
Quantifying Heat02:46

Quantifying Heat

63.0K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the...
63.0K
Heat Flow and Specific Heat01:12

Heat Flow and Specific Heat

7.0K
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is...
7.0K
What is Weather?01:07

What is Weather?

20.4K
Overview
20.4K
Increased Body Temperature01:25

Increased Body Temperature

7.6K
A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
7.6K
Specific Heat01:16

Specific Heat

68.0K
The specific heat capacity of a substance refers to the energy required to increase the temperature of one gram of that substance by one degree Celcius. Specific heat capacity is often represented in calories (cal), grams (g), and degrees Celsius (oC), but can also be expressed in joules (J), kilograms (kg), and Kelvin (K), among other units.
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
68.0K

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

Correction: Building the future of public health in Canada: A modified Delphi survey for updated core competencies.

Canadian journal of public health = Revue canadienne de sante publique·2026
Same author

Building the future of public health in Canada: A modified Delphi survey for updated core competencies.

Canadian journal of public health = Revue canadienne de sante publique·2026
Same author

"It's like dynamite-It can do a lot of good. It could do a lot of harm": A qualitative study on the uses, benefits, and risks of genAI in public health.

Digital health·2026
Same author

Social media messaging by Canadian health organizations to address indoor tanning during policy and scientific shifts.

Health promotion international·2025
Same author

A Pilot Study on Generative Artificial Intelligence's Reliability in Qualitative Research Quality Appraisal Using CASP and JBI Checklists.

Inquiry : a journal of medical care organization, provision and financing·2025
Same author

The double-edged algorithm: A rapid review exploring the trustworthy and responsible use of generative AI in public health.

Digital health·2025

相关实验视频

Updated: Feb 27, 2026

High-Throughput Assays of Critical Thermal Limits in Insects
06:58

High-Throughput Assays of Critical Thermal Limits in Insects

Published on: June 15, 2020

5.9K

探索Reddit话语和信息需求周围的极端热:主题,情绪和参与度分析.

Melissa MacKay1, Soroush Zamani Alavijeh2, Sydney Gosselin1

  • 1Department of Population Medicine, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G2W1, Canada, 1 5198244120.

Journal of medical Internet research
|February 25, 2026
PubMed
概括

加拿大社交媒体关于极端高温的讨论揭示了对成本和健康影响的担忧. 了解这些公众的看法是制定有效的气候变化适应战略和公共卫生信息的关键.

关键词:
在Reddit上,我们可以看到Reddit是什么.气候变化 气候变化 气候变化极端的热量极端的热量卫生沟通健康沟通信息生态系统信息生态系统社交媒体 社交媒体

更多相关视频

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

3.4K
Heat Tolerance Assays Using the Drosophila Activity Monitor System: A Guide to an Executable Application for Data Analysis
05:05

Heat Tolerance Assays Using the Drosophila Activity Monitor System: A Guide to an Executable Application for Data Analysis

Published on: December 13, 2024

1.1K

相关实验视频

Last Updated: Feb 27, 2026

High-Throughput Assays of Critical Thermal Limits in Insects
06:58

High-Throughput Assays of Critical Thermal Limits in Insects

Published on: June 15, 2020

5.9K
Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

3.4K
Heat Tolerance Assays Using the Drosophila Activity Monitor System: A Guide to an Executable Application for Data Analysis
05:05

Heat Tolerance Assays Using the Drosophila Activity Monitor System: A Guide to an Executable Application for Data Analysis

Published on: December 13, 2024

1.1K

科学领域:

  • 环境健康 环境健康
  • 公共卫生 公共卫生
  • 计算社会科学 计算社会科学

背景情况:

  • 加拿大因气候变化而面临越来越多的极端高温事件,造成健康风险,特别是对弱势群体.
  • 有效的沟通和基于证据的干预措施对于保护公众健康免受极端高温的影响至关重要.
  • 机器学习可以分析社交媒体,了解公众对极端高温的态度和行为,解决加拿大背景下的研究缺口.

研究的目的:

  • 分析加拿大社交媒体关于极端高温的言论和情绪.
  • 在加拿大Reddit用户中确定有关极端高温的关键话题,关注点和问题.
  • 调查讨论主题,情绪,情绪和Reddit上的用户参与之间的关系.

主要方法:

  • 在一年内从30个加拿大特定的Reddit子网收集了Reddit数据,使用与热量和气候相关的关键词.
  • 在整合的帖子和评论数据上利用了话题建模,情感分析和情感分析.
  • 评估用户参与度,使用净上调得分来评估社区认可.

主要成果:

  • 讨论经常集中在"热量"上,主要主题包括供暖/冷却成本,天气记录,空调和健康影响.
  • 情感和情感分析显示,在不同的子网红中,积极性和消极性各不相同.
  • 对来自15366位用户的607条帖子的分析,提供了加拿大对极端高温的看法.

结论:

  • 加拿大Reddit关于极端高温的讨论强调了对成本,天气模式和适应策略的担忧.
  • 观察到公众对健康和风险信息的看法存在显著的区域差异,这对于定制健康和风险信息非常有价值.
  • 调查结果为未来的研究和沟通策略提供信息,以减轻加拿大的极端高温对健康的不利影响.