Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Couple01:29

Couple

822
A couple is a pair of parallel forces equal in magnitude but in opposite directions. The forces are separated by a perpendicular distance, known as the couple's arm. The couple causes a rotation force or moment that rotates the body about an axis perpendicular to the plane of the forces. The resulting moment is referred to as the couple moment. The SI unit of a couple moment is the Newton-meter (N-m).
A typical example to understand this concept is tightening a bolt with a lug wrench. A...
822
Drag01:23

Drag

343
Drag is a resistive force opposing an object’s motion through a fluid, resulting from surface pressure and shear forces. It comprises two components: a perpendicular one from pressure and a tangential one from shear stress. Accurate drag calculations use pressure and wall shear stress distributions, often determined through Computational Fluid Dynamics (CFD) or wind tunnel testing. The drag coefficient, a dimensionless measure, depends on factors like shape, Reynolds number, Mach number,...
343
Actin Treadmilling01:18

Actin Treadmilling

9.4K
Actin filaments undergo polymerization and depolymerization from either end. The polymerization and depolymerization rates depend on the cytosolic concentration of free G-actins. The polymerization rate is generally higher at the plus or barbed end, while the depolymerization rate is higher at the minus or pointed end. At a steady state, critical concentration describes the concentration of free G-actin monomers at which the polymerization rate at the plus end is equal to that of the...
9.4K
Passionate Love01:26

Passionate Love

330
Passionate love is a powerful emotional and physiological state that plays a significant role in human relationships. It is characterized by an intense longing for connection with another person and is often considered the foundation of romantic attraction. Psychological research identifies three fundamental components of passionate love: cognition, emotion, and behavior.Cognitive AspectsCognition in passionate love involves idealization and persistent thoughts about the loved one. Individuals...
330
System of Forces and Couples01:16

System of Forces and Couples

668
In the analysis of structural systems, it is common to encounter members subjected to various forces and couple moments. Simplifying these systems can make the analysis more manageable and easier to understand. One approach to achieve this simplification is by moving a force to a point O that does not lie on its line of action and adding a couple with a moment equal to the moment of the force about point O.
The principle of transmissibility plays a crucial role in this process. According to...
668
Reflex Activity01:08

Reflex Activity

2.8K
A reflex activity is an automatic, involuntary response to specific stimuli. It is a part of our survival mechanism, designed to protect us from potential harm. For example, when a bright light suddenly shines into our eyes, we instinctively close them or look away. This is a simple reflex activity orchestrated by the nervous system without conscious thought or effort.
A reflex exam is a diagnostic procedure performed by a healthcare professional to evaluate the functionality of a patient's...
2.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Synergistic CRISPR-Cas and Nanozyme-Based Fluorescent Sensors for Ultrasensitive Heavy Metal Detection.

Critical reviews in analytical chemistry·2026
Same author

Cost-effectiveness of iGlarLixi vs. IDegAsp in individuals with type 2 diabetes: a BRAVO model-based evaluation.

Frontiers in public health·2026
Same author

GLEAM: A Multimodal Imaging Dataset and HAMM for Glaucoma Classification.

IEEE transactions on medical imaging·2026
Same author

Monolithic Double-W Origami Triboelectric Nanogenerator for Dual-Mode Mechanical Energy Harvesting.

Nano letters·2026
Same author

WHANet: Weighted Hierarchical Attention for Lightweight SR.

Scientific reports·2026
Same author

Corrigendum to "The role of serine/threonine protein kinases in cardiovascular disease and potential therapeutic methods" [Biomed. Pharmacother. 177 (2024) 117093].

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2026
Same journal

Protective Effects of <i>Acridocarpus smeathmannii</i> (DC.) Guill. & Perr. Root Extract against Phenylhydrazine-Induced Haematotoxicity, Biochemical Changes, and Oxidative Stress in Rats.

Biochemistry insights·2022
Same journal

The Roles of <i>N</i> <sup>6</sup>-Methyladenosine in Human Diseases.

Biochemistry insights·2019
Same journal

Cellular States and Secondary Chemical Bonding: A Biochemical View of Major Human Diseases.

Biochemistry insights·2019
Same journal

<i>Aerococcus urinae</i> and <i>Globicatella sanguinis</i> Persist in Polymicrobial Urethral Catheter Biofilms Examined in Longitudinal Profiles at the Proteomic Level.

Biochemistry insights·2019
Same journal

A High Creatine Kinase Concentration Might Be a Sign of McArdle Disease in Patient With Type 1 Diabetes.

Biochemistry insights·2019
Same journal

The Role of Insulin-Like Growth Factors and Insulin-Like Growth Factor-Binding Proteins in the Nervous System.

Biochemistry insights·2019
See all related articles

Related Experiment Video

Updated: Jan 3, 2026

Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults
09:19

Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults

Published on: December 9, 2014

26.2K

A Solo Dance or a Tango?

Yulin Wan1, Shanshan An1, Yanchao Zhou1

  • 1State Key Laboratory of Biocontrol, Biomedical Center, Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.

Biochemistry Insights
|November 26, 2019
PubMed
Summary
This summary is machine-generated.

High humidity may contribute to nasopharyngeal carcinoma by increasing mutagenic HCl. This environmental factor, alongside Epstein-Barr virus, warrants further investigation for cancer prevention.

Keywords:
Epstein-Barr virusNasopharyngeal carcinomahumidityhydrogen bondprotonrisk factor

More Related Videos

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

5.0K
Comparison of Kinetic Characteristics of Footwork during Stroke in Table Tennis: Cross-Step and Chasse Step
07:19

Comparison of Kinetic Characteristics of Footwork during Stroke in Table Tennis: Cross-Step and Chasse Step

Published on: June 16, 2021

3.1K

Related Experiment Videos

Last Updated: Jan 3, 2026

Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults
09:19

Community-based Adapted Tango Dancing for Individuals with Parkinson's Disease and Older Adults

Published on: December 9, 2014

26.2K
Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

5.0K
Comparison of Kinetic Characteristics of Footwork during Stroke in Table Tennis: Cross-Step and Chasse Step
07:19

Comparison of Kinetic Characteristics of Footwork during Stroke in Table Tennis: Cross-Step and Chasse Step

Published on: June 16, 2021

3.1K

Area of Science:

  • Oncology
  • Environmental Health
  • Virology

Background:

  • Nasopharyngeal carcinoma (NPC) is linked to genetic factors and Epstein-Barr virus (EBV).
  • Geographic distribution of NPC shows higher incidence in humid coastal regions (e.g., southern China, Southeast Asia) compared to non-humid areas.
  • A hypothesis suggests local hydrochloric acid (HCl) buildup as a potential carcinogenic mechanism.

Purpose of the Study:

  • To explore the role of environmental humidity in the pathogenesis of nasopharyngeal carcinoma.
  • To investigate the potential mechanism of HCl formation mediated by humidity and its interaction with EBV in NPC development.

Main Methods:

  • Observational analysis of NPC incidence rates in relation to regional humidity levels.
  • Hypothetical mechanism involving protein hydrogen bonding, proton donation, and HCl formation in humid environments.
  • Consideration of EBV's molecular properties (hydrogen bond donors/acceptors) in moist conditions.

Main Results:

  • Correlation observed between high humidity periods (e.g., 'Huinan' in Guangdong) and increased expression of proteins that can augment HCl formation.
  • The moist nasal environment may facilitate EBV colonization, potentially acting synergistically with humidity-induced factors.
  • Regions with high NPC rates often experience exceptionally high humidity.

Conclusions:

  • High environmental humidity is a significant factor potentially contributing to nasopharyngeal carcinoma development.
  • The interplay between humidity, HCl production, and Epstein-Barr virus in the nasal cavity requires further investigation.
  • Understanding these environmental triggers could lead to novel strategies for NPC prevention and control.