Related Experiment Video
Updated: Jun 18, 2026

09:43
Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering
Published on: November 22, 2019
David D. Derse, 1949-2009.
1Division of Basic Pharmaceutical Sciences, College of Pharmacy, Xavier University of Louisiana, New Orleans, LA 70125, USA. mshuh@xula.edu
Retrovirology
|December 3, 2009
Summary
Dr. David D. Derse, an expert in retrovirus research, passed away in 2009. His work focused on human T cell lymphotrophic viruses (HTLV-1 and HTLV-2) and their replication.
Area of Science:
- Virology
- Molecular Biology
- Retrovirus Research
Background:
- Dr. David D. Derse was a dedicated scientist at the National Cancer Institute (NCI) from 1986 until his passing.
- He led the Retrovirus Gene Expression Section within the HIV Drug Resistance Program at NCI-Frederick.
- His research career was marked by significant contributions to understanding retroviral infection and replication.
Discussion:
- Dr. Derse gained international recognition for his expertise on human T cell lymphotrophic viruses types 1 and 2 (HTLV-1 and HTLV-2).
- He contributed to the scientific community through his service on the editorial boards of prominent journals like Virology and Retrovirology.
- His dedication to advancing retroviral research was evident throughout his career.
Key Insights:
- Dr. Derse's recent research concentrated on the intricate mechanisms governing HTLV-1 virion morphogenesis.
- He investigated the processes of HTLV-1 transmission and replication at a molecular level.
- His findings provided valuable insights into the lifecycle of this significant retrovirus.
Outlook:
- The scientific community mourns the loss of Dr. Derse, a leading expert in retrovirology.
- His legacy includes advancing the understanding of HTLV-1 and related retroviruses.
- Continued research in these areas will build upon the foundation laid by his dedicated work.
Related Concept Videos
Density and Archimedes' Principle
When a lump of clay is dropped into water, it sinks. But if the same lump of clay is molded into the shape of a boat, it starts to float. Because of its shape, the clay boat displaces more water than the lump and experiences a greater buoyant force, even though its mass is the same. The same holds true for steel ships. The average density of an object majorly determines if the object will float. If an object's average density is less than that of the surrounding fluid, it will float. The reason...
Density
Density is an important characteristic of substances, crucial in determining whether an object sinks or floats in a fluid. Its SI unit is kg/m3, and its cgs unit is g/cm3. The density of an object helps in identifying its composition, and also reveals information about the phase of the matter and its substructure. The densities of liquids and solids are roughly comparable, consistent with the fact that their atoms are in close contact. However, gases have much lower densities than liquids and...
Dense Connective Tissue
Dense connective tissue contains more collagen fibers than loose connective tissue. As a consequence, it displays greater resistance to stretching. There are two major categories of dense connective tissue— regular and irregular.
Dense Regular Connective Tissue
In dense regular connective tissue, fibers are arranged parallel to each other, enhancing its tensile strength and resistance to stretching in the direction of the fiber orientations. Ligaments and tendons are made of dense regular...
Dense Regular Connective Tissue
In dense regular connective tissue, fibers are arranged parallel to each other, enhancing its tensile strength and resistance to stretching in the direction of the fiber orientations. Ligaments and tendons are made of dense regular...
The DNA Helix
Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
The DNA Helix
Overview
Susceptibility, Permittivity and Dielectric Constant
When placed in an external electric field, a dielectric material gets polarized. The charge density in the dielectric material is given by the sum of the bound and free charge densities, while the total charge density can also be written in terms of the total electric field. The bound charge density can be measured in terms of polarization, leading to the relationship between electric displacement and polarization.

