Related Concept Videos
01:11Blinding
2.5K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
2.5K
01:24Color Vision
629
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
629
01:14Changes in Skin Color: Clinical Perspectives
2.0K
The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
2.0K
01:13Special Staining Techniques
86
Specialized staining techniques play a vital role in microbiology by enabling the visualization of specific bacterial structures that remain undetectable with standard microscopy methods. These techniques not only enhance the structural visualization of bacterial cells but also provide critical insights into their pathogenicity and classification. Additionally, they support diagnostic and research endeavors in microbiology by identifying key bacterial features.Capsule Staining for Virulence...
86
03:02Colors and Magnetism
12.0K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.0K
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Sort by
Same author
Surgical Outcomes of Nonmelanoma Skin Cancer Managed with Systematic Preoperative Reflectance Confocal Microscopy-Guided Margin Assessment: A Retrospective Cohort Study Comparing Wide Local Excision and Mohs Micrographic Surgery.
Diagnostics (Basel, Switzerland)·2026
Same author
Immunohistochemical characterization of somatically derived "yolk sac tumors": analysis of a multi-institutional case series.
Virchows Archiv : an international journal of pathology·2026
Same author
KIM-1 and beyond: emerging biomarkers for adjuvant immunotherapy in clear cell renal cell carcinoma.
Expert review of molecular diagnostics·2026
Same author
Dermoscopic and Reflectance Confocal Microscopic Features of a Primary Cutaneous Anaplastic Large Cell Lymphoma (C-ALCL) of the Eyelid: A Case Report with Histopathologic Correlation.
Reports (MDPI)·2026
Same author
Dermoscopy of Pigmented Florid Papillomatosis of the Nipple: Unexpected Features and Blue Hue.
Dermatology practical & conceptual·2026
Same author
Human Papillomavirus in Bowen Disease: Site-Specific Prevalence, Genotype Distribution, and Clinical Implications Across Nail Apparatus, Cutaneous, and Anogenital Sites.
International journal of molecular sciences·2026
Same journal
Severe Irritant Contact Dermatitis to <i>Cyperus Scariosus</i>: A Side Effect of Ayurvedic <i>Plava</i>.
Indian journal of dermatology·2026
Same journal
Extensive Grouped Papules on the Vulva in a Patient with Cervical Cancer.
Indian journal of dermatology·2026
Same journal
Facial Melanosis: A Comprehensive Review of Uncommon and Common Presentations with Personal Experience.
Indian journal of dermatology·2026
Same journal
Exploring AI as a Diagnostic Tool in Medical Imaging for Dermatopathological Diseases.
Indian journal of dermatology·2026
Same journal
Carotid Intima-Media Thickness and Retrobulbar Blood Flow in Patients with Psoriasis.
Indian journal of dermatology·2026
Same journal
Pyoderma Gangrenosum-Like Ulcer Secondary to Antiphospholipid Syndrome.
Indian journal of dermatology·2026
Related Experiment Video
Updated: Aug 4, 2025
10:18
Blue-hazard-free Candlelight OLED
Published on: March 19, 2017
9.5K
The Tricky Blue
Francesca Pepe1, Barbara Corti2, Costantino Ricci3
1Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Dermatology, IRCCS Policlinico di Sant'Orsola, Alma Mater Studiorum Università di Bologna, Italy.
Indian Journal of Dermatology
|March 31, 2023
Summary
No abstract available in PubMed .
