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

Testes: Histology01:27

Testes: Histology

3.0K
A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
3.0K
Complementation Tests00:49

Complementation Tests

6.2K
A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
6.2K
Significance Testing: Overview01:04

Significance Testing: Overview

12.7K
Significance testing is a set of statistical methods used to test whether a claim about a parameter is valid. In analytical chemistry, significance testing is used primarily to determine whether the difference between two values comes from determinate or random errors. The effect of a particular change in the measurement protocol, analyst, or sample itself can cause a deviation from the expected result. In the case of a suspected deviation/outlier, we need to be able to confirm mathematically...
12.7K
Testes: Gross Anatomy01:19

Testes: Gross Anatomy

6.1K
The testes, also known as testicles, are the male gonads. They are housed within the scrotum, a sac-like structure located beneath the penis. The scrotum's primary role is to regulate the temperature of the testes, which is crucial for sperm production.
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...
6.1K
Testing Water Quality01:14

Testing Water Quality

389
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
389
Types of Hypothesis Testing01:11

Types of Hypothesis Testing

27.9K
There are three types of hypothesis tests: right-tailed, left-tailed, and two-tailed.
When the null and alternative hypotheses are stated, it is observed that the null hypothesis is a neutral statement against which the alternative hypothesis is tested. The alternative hypothesis is a claim that instead has a certain direction. If the null hypothesis claims that p = 0.5, the alternative hypothesis would be an opposing statement to this and can be put either p > 0.5, p < 0.5, or p...
27.9K

You might also read

Related Articles

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

Sort by
Same author

Transient Erythema Elevatum Diutinum Associated With HIV Viremia.

Cureus·2023
Same author

Association of Tumor Characteristics With Insurance Type Among Patients Undergoing Mohs Micrographic Surgery for Nonmelanoma Skin Cancer.

JAMA dermatology·2022
Same author

Erythematous papules and pustules on the nose.

Cutis·2019
Same author

Management of a neonate with diffuse cutaneous mastocytosis: Case report and literature review.

Pediatric dermatology·2019
Same author

Disseminated Syringomas of the Upper Extremities in a Young Woman.

Cureus·2019
Same author

Bedside microscopy for the beginner.

Cutis·2018

Related Experiment Video

Updated: Jan 31, 2026

Basophil Activation Test for Allergy Diagnosis
07:22

Basophil Activation Test for Allergy Diagnosis

Published on: May 31, 2021

9.5K

Allergy testing in dermatology and beyond.

Ashley D Lundgren1

  • 1Division of Dermatology, University of Texas Dell Medical School, Austin, Texas, USA.

Cutis
|December 20, 2018
PubMed
Summary

Allergy is a broad term for immune system changes. This review clarifies common allergic conditions, diagnostic tests, and focuses on patch testing for dermatology.

Area of Science:

  • Immunology
  • Dermatology

Background:

  • Allergy is an acquired immune response to antigens affecting all organ systems, including skin.
  • Varied interpretations of 'allergy' by patients and physicians hinder clear communication and management of allergic conditions.

Purpose of the Study:

  • To review the pathophysiology of common allergic disease presentations.
  • To discuss standard allergy tests and their indications.
  • To detail patch testing, a primary dermatological allergy assessment tool.

Main Methods:

  • Literature review of allergic disease pathophysiology.
  • Analysis of indications for common allergy tests.
  • In-depth review of patch testing methodology and application in dermatology.

More Related Videos

Mouse Body Temperature Measurement Using Infrared Thermometer During Passive Systemic Anaphylaxis and Food Allergy Evaluation
04:34

Mouse Body Temperature Measurement Using Infrared Thermometer During Passive Systemic Anaphylaxis and Food Allergy Evaluation

Published on: September 14, 2018

26.6K
Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response
06:31

Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response

Published on: October 3, 2019

9.2K

Related Experiment Videos

Last Updated: Jan 31, 2026

Basophil Activation Test for Allergy Diagnosis
07:22

Basophil Activation Test for Allergy Diagnosis

Published on: May 31, 2021

9.5K
Mouse Body Temperature Measurement Using Infrared Thermometer During Passive Systemic Anaphylaxis and Food Allergy Evaluation
04:34

Mouse Body Temperature Measurement Using Infrared Thermometer During Passive Systemic Anaphylaxis and Food Allergy Evaluation

Published on: September 14, 2018

26.6K
Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response
06:31

Precision Implementation of Minimal Erythema Dose MED Testing to Assess Individual Variation in Human Inflammatory Response

Published on: October 3, 2019

9.2K

Main Results:

  • Common allergic conditions involve diverse immune mechanisms.
  • Routine allergy tests have specific indications for diagnosis.
  • Patch testing is a frequently utilized and valuable diagnostic method in dermatology for allergic contact dermatitis.

Conclusions:

  • Standardizing the understanding and terminology of allergic conditions is crucial.
  • Appropriate selection of allergy tests, particularly patch testing, aids in accurate diagnosis and management.
  • Further research may refine diagnostic approaches for complex allergic presentations.