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

Red Algae01:23

Red Algae

796
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
796
The Roles of Bacteria and Fungi in Plant Nutrition02:11

The Roles of Bacteria and Fungi in Plant Nutrition

47.2K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
47.2K
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

28.4K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
28.4K
Fixed Action Patterns01:06

Fixed Action Patterns

17.6K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.6K
What is Population Genetics?01:25

What is Population Genetics?

64.5K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
64.5K
Hardy-Weinberg Principle01:49

Hardy-Weinberg Principle

76.1K
Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.
76.1K

You might also read

Related Articles

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

Sort by
Same author

Spesolimab for generalized pustular psoriasis: A prospective study with a 6-month-follow-up.

Clinical and experimental dermatology·2026
Same author

Atypical Presentation of Grade III Hand-Foot Syndrome in a Patient With Breast Cancer Receiving Docetaxel.

American journal of therapeutics·2026
Same author

Diagnostic Utility of Molecular Analysis in Cutaneous T-Cell Lymphoma: Tunisian Series on Clonality of TCRG Gene Rearrangement.

South Asian journal of cancer·2025
Same author

Ribociclib-Associated Vitiligo.

American journal of therapeutics·2025
Same author

Nail Involvement in Pemphigus: A Clinical and Dermoscopic Prospective Study.

Skin appendage disorders·2025
Same author

Dermoscopy of Early-Stage Mycosis Fungoides: Comparative Study with Inflammatory Dermatoses.

Dermatology practical & conceptual·2025

Related Experiment Video

Updated: Jan 24, 2026

Author Spotlight: A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules
10:26

Author Spotlight: A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules

Published on: May 19, 2023

2.5K

A Red Nodule on the Face.

Anissa Zaouak1, Meriem Belhaj Salah2, Wafa Koubaa2

  • 1Dermatology Department, Research Unit Genodermatoses and Cancers LR12SP03, Habib Thameur Hospital, Tunis, Tunisia; anissa_zaouak@yahoo.fr.

Skinmed
|May 31, 2019
PubMed
Summary
This summary is machine-generated.

A man presented with a persistent facial papule. This case highlights the importance of considering rare dermatological conditions in nonhealing skin lesions.

More Related Videos

Polysome Purification from Soybean Symbiotic Nodules
07:02

Polysome Purification from Soybean Symbiotic Nodules

Published on: July 1, 2022

1.9K
Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
07:53

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer

Published on: October 13, 2023

2.0K

Related Experiment Videos

Last Updated: Jan 24, 2026

Author Spotlight: A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules
10:26

Author Spotlight: A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules

Published on: May 19, 2023

2.5K
Polysome Purification from Soybean Symbiotic Nodules
07:02

Polysome Purification from Soybean Symbiotic Nodules

Published on: July 1, 2022

1.9K
Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
07:53

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer

Published on: October 13, 2023

2.0K

Area of Science:

  • Dermatology
  • Clinical Case Reports

Background:

  • A 34-year-old male presented with a persistent, tender facial papule.
  • The lesion had been present for 9 months with no history of trauma.

Observation:

  • Physical examination revealed a 0.5 cm erythematous papule on the left preauricular region.
  • No lymphadenopathy was noted, and the patient was in good general health.

Findings:

  • The case describes a small, nonhealing, tender papule on the face.
  • Differential diagnosis for such lesions includes various dermatological conditions.

Implications:

  • This case underscores the need for thorough evaluation of chronic skin lesions.
  • It may inform diagnostic approaches for similar presentations in clinical practice.