Health, Medicine, & Biotechnology

Simplified Microarray Technique for Identifying mRNA in Rare Samples

This method can be implemented by use of portable equipment. Two simplified methods of identifying messenger ribonucleic acid (mRNA), and compact, low-power apparatuses to implement the methods, are at the proof-of-concept stage of development. These methods are related to traditional methods based on hybridization of nucleic acid, but whereas the traditional methods must be practiced in laboratory settings, these methods could be practiced in field settings.

Posted in: Briefs, TSP, Medical

Read More >>

Thermal Spore Exposure Vessels

Thermal masses are minimized to enable rapid heating and cooling. Thermal spore exposure vessels (TSEVs) are laboratory containers designed for use in measuring rates of death or survival of microbial spores at elevated temperatures. A major consideration in the design of a TSEV is minimizing thermal mass in order to minimize heating and cooling times. This is necessary in order to minimize the number of microbes killed before and after exposure at the test temperature, so that the results of the test accurately reflect the effect of the test temperature.

Posted in: Briefs, TSP, Medical

Read More >>

Enumerating Spore-Forming Bacteria Airborne With Particles

Complementary data are obtained by use of two instruments and correlated. A laboratory method has been conceived to enable the enumeration of: Cultivable bacteria and bacterial spores that are, variously, airborne by themselves or carried by, parts of, or otherwise associated with, other airborne particles; and Spore-forming bacteria among all of the aforementioned cultivable microbes.

Posted in: Briefs, TSP, Medical

Read More >>

Architecture Adaptive Computing Environment

Architecture Adaptive Computing Environment (aCe) is a software system that includes a language, compiler, and run-time library for parallel computing. aCe was developed to enable programmers to write programs, more easily than was previously possible, for a variety of parallel computing architectures. Heretofore, it has been perceived to be difficult to write parallel programs for parallel computers and more difficult to port the programs to different parallel computing architectures. In contrast, aCe is supportable on all high-performance computing architectures. Currently, it is supported on LINUX clusters. aCe uses parallel programming constructs that facilitate writing of parallel programs. Such constructs were used in single-instruction/multiple-data (SIMD) programming languages of the 1980s, including Parallel Pascal, Parallel Forth, C*, *LISP, and MasPar MPL. In aCe, these constructs are extended and implemented for both SIMD and multiple-instruction/multiple-data (MIMD) architectures. Two new constructs incorporated in aCe are those of (1) scalar and virtual variables and (2) pre-computed paths. The scalar-and-virtual-variables construct increases flexibility in optimizing memory utilization in various architectures. The pre-computed paths construct enables the compiler to pre-compute part of a communication operation once, rather than computing it every time the communication operation is performed.

Posted in: Briefs, Medical

Read More >>

Stationary Apparatus Would Apply Forces of Walking to Feet

The forces would be tailored to prevent loss of bone density.A proposed apparatus would apply controlled cyclic forces to both feet for the purpose of preventing the loss of bone density in a human subject whose bones are not subjected daily to the mechanical loads of normal activity in normal Earth gravitation. The apparatus was conceived for use by astronauts on long missions in outer space; it could also be used by bedridden patients on Earth, including patients too weak to generate the necessary forces by their own efforts.

Posted in: Briefs, TSP, Medical

Read More >>

Instrument Would Detect and Collect Biological Aerosols

Samples would be quickly collected on substrates that would be analyzed automatically.A proposed compact, portable instrument would sample micron-sized airborne particles, would discriminate between biological ones (e.g., bacteria) and nonbiological ones (e.g., dust particles), and would collect the detected biological particles for further analysis. The instrument is intended to satisfy a growing need for means of rapid, inexpensive collection of bioaerosols in a variety of indoor and outdoor settings. Purposes that could be served by such collection include detecting airborne pathogens inside buildings and their ventilation systems, measuring concentrations of airborne biological contaminants around municipal waste-processing facilities, monitoring airborne effluents from suspected biowarfare facilities, and warning of the presence of airborne biowarfare agents.

Posted in: Briefs, Medical

Read More >>

Generating Control Commands From Gestures Sensed by EMG

Electrical signals from muscles involved in gestures are recognized.An effort is under way to develop noninvasive neuro-electric interfaces through which human operators could control systems as diverse as simple mechanical devices, computers, aircraft, and even spacecraft. The basic idea is to use electrodes on the surface of the skin to acquire electromyographic (EMG) signals associated with gestures, digitize and process the EMG signals to recognize the gestures, and generate digital commands to perform the actions signified by the gestures.

Posted in: Briefs, TSP, Medical

Read More >>

White Papers

TechTalk Design Advice Series: The Cable Distribution Rules You Need To Obey
Sponsored by igus
Microelectronics Package for Extreme Environments
Sponsored by Anaren
Enabling Complex Applications with a Dual Node Single Board Computer
Sponsored by Curtiss-Wright Controls Embedded Computing
The Ultimate Shaft-To-Hub Connection
Sponsored by Stoffel Polygon
Electropolishing for the Aerospace Industry
Sponsored by Able Electropolishing
How to Prevent Step Losses with Stepper Motors
Sponsored by MICROMO

White Papers Sponsored By:

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.