(NMs) face challenges due to, among others, the numerous existing nanoforms, discordant data and conflicting results found in the literature, and specific challenges in the application of strategies such as grouping and read-across, emphasizing the need for New Approach Methodologies (NAMs) to ...
A common approach is to count cells in the four major (1 mm) corner squares on one side of the hemocytometer, but you could also count eight major squares (from both sides of the hemocytometer) or any number of major squares. If the cell density is on the higher side, try using a s...
All storm chasers must determine where tornadoes are likely to form and which approach to the storm will give them the best view while keeping them out of the most dangerous parts of the storm. Recently, Casey has worked with Dr. Joshua Werman of the Center for Severe Weather Research (CS...
To prevent unwanted vibrations, that mechanism is fixed to a rubber cushion (3) mounted on a firm aluminum base (4), which is further cushioned by multiple layers of aluminum plates and rubber pads (not shown). To create an image, the specimen is slowly moved around the sharp, fixed imag...
At 18, Katie Stubblefield lost her face. At 21, she became the youngest person in the U.S. to undergo the still experimental surgery. Follow her incredible story.
Paramyxoviruses including measles, Nipah, and parainfluenza viruses are public health threats with pandemic potential. Human parainfluenza virus type 3 (HPIV3) is a leading cause of illness in pediatric, older, and immunocompromised populations. There ar
Comparing to a generic two-state model, our models can distinguish class I from class II MHCs and correlate their structural parameters with the TCR/pMHC’s potency to trigger T cell activation. The models are tested by mutagenesis using an MHC and a TCR mutated to alter conformation changes....
Over the last three decades, this approach has been replaced by linking earthquake insurance to bonds in the capital market; this is now known as the earthquake catastrophe bond (ECB). Through the ECB, contingency costs become larger and more sustainable earthquake funds. Unfortunately, there are...
This article develops a multi-perspective view on motivations and methods for tobamovirus purification through the ages and presents a novel, efficient, easy-to-use approach that can be well-adapted to different species of native and functionalized virions. We survey the various driving forces prompt...
While the rovers aren't exactly punching a clock every morning, they do send images, along with instrument and status data, back to their Earth bosses. Extrapolating from the data, the scientists send commands to the rover during the three-hour window of direct communication with the high-gain...