1,721,136 research outputs found
Application of acute maximal exercise to protect orthostatic tolerance after simulated microgravity
No full text Pages R837–R847: K. A. Engelke, D. F. Doerr, and V. A. Convertino. “Application of acute maximal exercise to protect orthostatic tolerance after simulated microgravity.” On p. 837, the author line of the article and abstract and the affiliation line should read as follows: KEITH A. ENGELKE, DONALD F. DOERR, CRAIG G. CRANDALL, AND VICTOR A. CONVERTINO Department of Physiology, University of Florida, Gainesville, Florida 32610; National Aeronautics and Space Administration-Kennedy Space Center, Cape Canaveral, Florida 32899; Department of Physiology, University of North Texas Health Science Center, Ft. Worth, Texas 76107; and Physiology Research Branch, Clinical Science Division, Brooks Air Force Base, Texas 78235 </jats:p
Application of acute maximal exercise to protect orthostatic tolerance after simulated microgravity
No full text Pages R837–R847: K. A. Engelke, D. F. Doerr, and V. A. Convertino. “Application of acute maximal exercise to protect orthostatic tolerance after simulated microgravity.” On p. 837, the author line of the article and abstract and the affiliation line should read as follows: KEITH A. ENGELKE, DONALD F. DOERR,CRAIG G. CRANDALL, AND VICTOR A. CONVERTINO Department of Physiology, University of Florida, Gainesville, Florida 32610; National Aeronautics and Space Administration-Kennedy Space Center, Cape Canaveral, Florida 32899;Department of Physiology, University of North Texas Health Science Center, Ft. Worth, Texas 76107; and Physiology Research Branch, Clinical Science Division, Brooks Air Force Base, Texas 78235 </jats:p
A wearable, wireless, long-term recording electrocardiograph, improving the non-invasive diagnosis of cardiac deseases
No full textWe have designed a microcontroller-based medical device for long term recording electrocardiograph (Holter applications) allowing data from up to 12 channels to be stored, thus providing the diagnostic capabilities of the static electrocardiograph (ECG) together with the wearability and the long term registration of the cardiac activity. Thanks to its specific sensors, embedded in a kind elastic band, it is possible to place on the thorax many electrodes without reducing the movement potentials. Moreover, the elastic band is provided with a wireless module (Bluetooth) to send the data to the recorder unit. The storage support is a flash card. Therefore, the new system is miniaturised and results more comfortable than the commonly used taperecorder type portable electrocardiographs. The microcontroller permits to implement a diagnostics algorithm and/or to download real time the data by UDP channel
An innovative remote health monitoring system
No full textA system intended to bring about innovation in remote health monitoring in terms of simplicity, economy and effectiveness in both domestic and hospital applications has been designed and prototyped.
It allows real-time rescue in case of emergency without the necessity for data to be constantly monitored by a medical; the unit performing a real time diagnosing electronically. When an emergency sign is detected through the real-time diagnosing system, the system sends a warning message to persons able to arrange for his/her rescue. A GPS system also provides the patient’s coordinates.
The system might be useful not only to GPs but also to sportsmen. Thanks to its characteristics it can help reduce hospitalization rates and length of stays thereby improving health costs and quality of life
Wide band gap amorphous hydrogenated carbon films grown by plasma enhanced chemical vapor deposition
Full text linkWe have fabricated amorphous hydrogenated carbon films by rf plasma enhanced chemical vapor deposition with very low ion bombardment energy. We demonstrate that the optical gap of the films can be tuned in a wide range, from 3.46 up to 4.95 eV, i.e., close to the diamond gap ~5.5 eV!, by proper control of the negative dc self-bias voltage. This behavior suggests that a dramatic reduction in the content and clustering of the sp2 sites occurs by lowering the ion bombardment energy
A New Approach to Organic Solvent Detection: High reflectivity Bragg reflectors based on a gold nanoparticle/Teflon-like composite materia
No full textHigh reflectivity Bragg reflectors based on a gold nanoparticle/Teflon-like composite material as a new approach to the organic solvent detection
No full textWe report on the properties of a new optical sensing element for organic solvents based on polymeric distributed Bragg reflector (DBR), which can be easily interfaced with optical fibers. The DBR is a periodic stack of alternating Teflon-like and gold nanoparticle/Teflon-like composite layers showing high reflectivity in the optical telecommunication spectral range and sensing proper-ties due to the peculiar absorbing properties of the composite layers. The swelling of the composite layers in presence of organic vapors causes a DBR periodicity change and this results in the shift of the high reflectivity window
A pressure sensor and microcontroller-based medical device for preventing of the acute pulmonary pathologies in intensive care
No full textThe survival of patients submitted to Intensive Care is often related to the mechanical ventilation, which makes up for serious respiratory insufficiencies but can also become a lethal health risk. To decrease these risks, new smart electromedical devices are required
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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