Very Wide Band Satellite Transmissions for Emergency Situations

Author(s):  
Mathieu Dervin ◽  
Isabelle Buret ◽  
Celine Loisel
2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Phillip D. Levy ◽  
Tracey Wielinski ◽  
Alan Greszler

Pneumothorax detection in emergency situations must be rapid and at the point of care. Current standards for detection of a pneumothorax are supine chest X-rays, ultrasound, and CT scans. Unfortunately these tools and the personnel necessary for their facile utilization may not be readily available in acute circumstances, particularly those which occur in the pre-hospital setting. The decision to treat therefore, is often made without adequate information. In this report, we describe a novel hand-held device that utilizes Micropower Impulse Radar to reliably detect the presence of a pneumothorax. The technology employs ultra wide band pulses over a frequency range of 500 MHz to 6 GHz and a proprietary algorithm analyzes return echoes to determine if a pneumothorax is present with no user interpretation required. The device has been evaluated in both trauma and surgical environments with sensitivity of 93% and specificity of 85%. It is has the CE Mark and is available for sale in Europe. Post market studies are planned starting in May of 2011. Clinical studies to support the FDA submission will be completed in the first quarter of 2012.


1966 ◽  
Vol 24 ◽  
pp. 262-266 ◽  
Author(s):  
M. Golay
Keyword(s):  

During the last 5 years, we have developed a seven-colour photometry at the Geneva Observatory. Our multicolour photo-electric system is of a wide-band type; the bandwidth being about 500Å for four filters. The three others are similar to theUBVsystem. In Table 1 we give the filter combinations used in our photometry (1).


Author(s):  
Joanna L. Batstone

Interest in II-VI semiconductors centres around optoelectronic device applications. The wide band gap II-VI semiconductors such as ZnS, ZnSe and ZnTe have been used in lasers and electroluminescent displays yielding room temperature blue luminescence. The narrow gap II-VI semiconductors such as CdTe and HgxCd1-x Te are currently used for infrared detectors, where the band gap can be varied continuously by changing the alloy composition x.Two major sources of precipitation can be identified in II-VI materials; (i) dopant introduction leading to local variations in concentration and subsequent precipitation and (ii) Te precipitation in ZnTe, CdTe and HgCdTe due to native point defects which arise from problems associated with stoichiometry control during crystal growth. Precipitation is observed in both bulk crystal growth and epitaxial growth and is frequently associated with segregation and precipitation at dislocations and grain boundaries. Precipitation has been observed using transmission electron microscopy (TEM) which is sensitive to local strain fields around inclusions.


Author(s):  
J.B. Posthill ◽  
R.P. Burns ◽  
R.A. Rudder ◽  
Y.H. Lee ◽  
R.J. Markunas ◽  
...  

Because of diamond’s wide band gap, high thermal conductivity, high breakdown voltage and high radiation resistance, there is a growing interest in developing diamond-based devices for several new and demanding electronic applications. In developing this technology, there are several new challenges to be overcome. Much of our effort has been directed at developing a diamond deposition process that will permit controlled, epitaxial growth. Also, because of cost and size considerations, it is mandatory that a non-native substrate be developed for heteroepitaxial nucleation and growth of diamond thin films. To this end, we are currently investigating the use of Ni single crystals on which different types of epitaxial metals are grown by molecular beam epitaxy (MBE) for lattice matching to diamond as well as surface chemistry modification. This contribution reports briefly on our microscopic observations that are integral to these endeavors.


VASA ◽  
1999 ◽  
Vol 28 (1) ◽  
pp. 30-33 ◽  
Author(s):  
Bürger ◽  
Meyer ◽  
Tautenhahn ◽  
Halloul

Background: Objective evaluation of the management of patients with ruptured infrarenal aortic aneurysm in emergency situations has been described rarely. Patients and methods: Fifty-two consecutive patients with ruptured infrarenal aortic aneurysm (mean age, 70.3 years; range, 56–89 years; SD 7.8) were admitted between January 1993 and March 1998. Emergency protocols, final reports, and follow-up data were analyzed retrospectively. APACHE II scores at admission and fifth postoperative day were assessed. Results: The time between the appearance of first symptoms and the referral of patients to the hospital was more than 5 hours in 37 patients (71%). Thirty-eight patients (71%) had signs of shock at time of admission. Ultrasound was performed in 81% of patients as the first diagnostic procedure. The most frequent site of aortic rupture was the left retroperitoneum (87%). Intraoperatively, acute left ventricular failure occurred in four patients, and cardiac arrest in two others. The postoperative course was complicated significantly in 34 patients. The overall mortality rate was 36.5% (n = 19). In 35 patients, APACHE II score was assessed, showing a probability of death of more than 40% in five patients and lower than 30% in 17 others. No patient showing probability of death of above 75% at the fifth postoperative day survived (n = 7). Conclusions: Ruptured aortic aneurysm demands surgical intervention. Clinical outcome is also influenced by preclinical and anesthetic management. The severity of disease as well as the patient’s prognosis can be approximated using APACHE II score. Treatment results of heterogenous patient groups can be compared.


2020 ◽  
Vol 17 (2) ◽  
pp. 66-73
Author(s):  
R. D. Oktyabrskiy

The article is devoted to the justification of the need to reduce the population density in the residential development of cities. The analysis of vulnerability of the urban population from threats of emergency situations of peace and war time, and also an assessment of provision of the city by a road network is given. Proposals have been formulated to reduce the vulnerability of the urban population in the long term and to eliminate traffic congestion and congestion — jams.


Professare ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 82
Author(s):  
Angélica Wrublak ◽  
Elaine Caroline Boscatto

<p class="resumoabstract">Acidentes e fatalidades podem acontecer desde simples contusões até as mais urgentes hemorragias e parada cardiorrespiratória. Os primeiros socorros realizados de forma adequada podem minimizar os agravos e até mesmo salvar vidas. No âmbito escolar, situações de emergência fazem parte do cotidiano e é essencial que Professores de Educação Física tenham um conhecimento básico para atender as necessidades escolares. O presente estudo teve como objetivo verificar o conhecimento dos Professores de Educação Física (EF) da rede pública de Ensino da Cidade de Santa Cecilia-SC com relação aos Primeiros Socorros (PS). Caracterizou-se em natureza descritiva, transversal, com análise quanti-qualitativa dos dados. Participaram do estudo 11 Professores de EF. Para a coleta de dados, foi desenvolvido um questionário abordando aspectos conceituais, procedimentos e atitudes referentes ao cotidiano profissional. Do total, apenas um professor não teve a disciplina de PS na graduação. Os professores na sua minoria se sentem aptos a prestar os PS e inclusive assumir as situações, demonstrando conhecimento satisfatório na teoria, mas na prática sentem-se inseguros para agir diante de situações mais graves. Destaca-se que mais de 80% sabem como agir em atendimentos menos agravantes. Já nas situações de parada cardiorrespiratória (RCP) e hemorragias, os mesmos relataram que necessitam de um treinamento mais atualizado. Em crianças principalmente eles não sentem muito seguros em prover o auxílio. Foi possível concluir que os professores de EF apresentaram um nível de conhecimento satisfatório na teoria, mas sugerem atualizações periódicas em forma de cursos.</p><p class="resumoabstract"><strong>Palavras-chave</strong>: Primeiros Socorros. Docentes. Educação Física e Treinamento.</p><h3>ABSTRACT</h3><p class="resumoabstract">Accidents and fatalities can occur from simple bruises to the most urgent hemorrhages and cardiopulmonary arrest. First aid performed properly can minimize the aggravations and even save lives. In the school context, emergency situations are part of the daily life and it is essential that Physical Education Teachers have a basic knowledge to carry out the school needs. This study verified the Physical Education (PE) Teachers knowledge from Santa Cecilia-SC public teaching related to first aid. It featured in descriptive nature, transversal, with quantitative and qualitative analysis of the data. Eleven PE teachers participated of the study. For the data collection, it was developed a questionnaire addressing conceptual aspects, procedures and attitudes concerning professional daily life. From the total, only one teacher did not have the first aid subject at the college. Teachers in their minority feel able to provide the first aid and even take on the situations, showing satisfactory theory knowledge, however in real life they feel insecure to act on before serious situations. It points out that more than 80% know how to act before less aggravating calls. Nonetheless, during cardiopulmonary arrest (CPR) and hemorrhages, they reported the need of an updated training. Mainly in children, they do not feel safe to provide the aid. It was possible to conclude that Physical Education Teachers showed a satisfactory level of knowledge in theory, however it suggest courses periodic updates.</p><p class="resumoabstract"><strong>Keywords</strong>: First Aid. Faculty. Physical Education and Training.</p>


2020 ◽  
Vol 10 (3) ◽  
pp. 149-154
Author(s):  
YURI FRANCIFOROV ◽  
◽  
MARINA BARANOVA

The purpose of the article is to consider the peculiarities of investigative and judicial actions that are caused by their postponement, the inability to attract a lawyer, as well as the suspension of the preliminary investigation during the period of emergency measures taken by the government of the Russian Federation in response to the outbreak of the coronavirus infection pandemic (COVID-19). The authorsanalyze the features of the courts activity in connection with the coronavirus pandemic, which is associated with minimizing the personal reception of citizens and submitting documents via electronic Internet reception offices of courts or by Russian Post, as well as the possibility of conducting online court sessions. The authors come to the conclusion that the judicial system was not sufficiently prepared for the pandemic, and therefore it is urgently necessary to adopt a special normative act that would regulate the implementation of judicial proceedings in emergency situations, allowing to continue to consider urgent cases, including materials on the election, extension, cancellation or change of a preventive measure.


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