102,336 research outputs found

    Estimation of Rain Attenuation at EHF bands for Earth-to-Satellite Links in Bangladesh

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    Due to heavy congestion in lower frequency bands, engineers are looking for new frequency bands to support new services that require higher data rates, which in turn needs broader bandwidths. To meet this requirement, extremely high frequency (EHF), particularly Q (36 to 46 GHz) and V (46 to 56 GHz) bands, is the best viable solution because of its complete availability. The most serious challenge the EHF band poses is the attenuation caused by rain. This paper investigates the effect of the rain on Q and V bands' performances in Bangladeshi climatic conditions. The rain attenuations of the two bands are predicted for the four main regions of Bangladesh using ITU rain attenuation model. The measured rain statistics is used for this prediction. It is observed that the attenuation due to rain in the Q/V band reaches up to 150 dB which is much higher than that of the currently used Ka band. The variability of the rain attenuation is also investigated over different sessions of Bangladesh. The attenuation varies from 40 dB to 170 dB depending on the months. Finally, the amount of rain fade required to compensate the high rain attenuation is also predicted for different elevation angles.Comment: Int'l Conf. on Electrical, Computer and Communication Engineering (IEEE sponsored), Cox's Bazar, Bangladesh, February 2017, pp. 589-59

    Endovascular Cure of a Locked-In Patient

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    We report the case of a 60 year-old right-handed gentleman who became acutely “Locked-In” several days after a lower extremity orthopedic procedure. He underwent emergent endovascular treatment and had complete resolution of his neurologic findings except for mild dysarthria and dysphagia. Endovascular intervention for posterior circulation thrombosis is highly effective when patients are treated within 24 hours

    The Use of Palliative Performance Score in Patients with End-Stage Liver Disease

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    ● Palliative Care services are often underutilized in patients with End-Stage Liver Disease (ESLD) and often only initiated at the end of life ● The Palliative Performance Score (PPS) is an important tool used in Palliative Care to assess functional status ● PPS has five functional dimensions: ambulation, activity level and evidence of disease, self-care, oral intake, and level of consciousness ● The aim of this study is to determine if there is a correlation between Model for End-Stage Liver Disease (MELD) score and PPS in ESLD patients ● MELD is used to predict mortality and to prioritize liver transplant allocation in ESLD patientshttps://jdc.jefferson.edu/medposters/1011/thumbnail.jp

    Obstructive sleep apnea syndrome and perioperative complications: a systematic review of the literature.

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    Obstructive sleep apnea syndrome (OSAS) is a common sleep related breathing disorder. Its prevalence is estimated to be between 2% and 25% in the general population. However, the prevalence of sleep apnea is much higher in patients undergoing elective surgery. Sedation and anesthesia have been shown to increase the upper airway collapsibility and therefore increasing the risk of having postoperative complications in these patients. Furthermore, the majority of patients with sleep apnea are undiagnosed and therefore are at risk during the perioperative period. It is important to identify these patients so that appropriate actions can be taken in a timely fashion. In this review article, we will discuss the epidemiology of sleep apnea in the surgical population. We will also discuss why these patients are at a higher risk of having postoperative complications, with the special emphasis on the role of anesthesia, opioids, sedation, and the phenomenon of REM sleep rebound. We will also review how to identify these patients preoperatively and the steps that can be taken for their perioperative management

    Got Sugar? Pharmacist Intervention to Improve A1c

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    AIM: Within 6 months, we aim to decrease by 10% the number of our diabetic patients with an A1c \u3e8 through Clinical Pharmacist referrals.https://jdc.jefferson.edu/patientsafetyposters/1033/thumbnail.jp

    A Week Devoted to Wellness in the Preclinical Phase: Lessons Learned

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    Background During the 2017-2018 academic year, a large private medical college underwent a complete transformation of its curriculum from a primarily lecture based, traditional format to an integrated, longitudinal format that included both time limited blocks and longitudinal threads of content. Wellness, conceptualized at both wellness of the provider and the patient, is one of the eight threads. Goals Provide a structured pause in medical school for you to reflect on your own wellness Allow time to explore the ideas of resilience Provide time for rejuvenation Allow you to start building productive habits to last you throughout your entire medical careershttps://jdc.jefferson.edu/rmposters/1005/thumbnail.jp

    The social and community value of football - Are there any regulatory requirements for football clubs to report against social and environment impacts?

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    It is often claimed that because professional football clubs are at the centre of, integral to and essential for the communities in which they are based, the pattern of regulation affecting them should be different from that which is imposed on other businesses of a similar size. Such claims are used to justify the need for the differential treatment of football clubs in many different contexts from planning and licensing applications, to calls for the more effective regulation of football clubs from supporter groups, to the rule providing for the primacy of football creditors. Despite this claim of difference, however, neither the football authorities, domestic UK law nor EU law require football clubs to submit to any social accounting procedures. The result of this lack of a framework for measuring the social and community impact of a football club is that there is very little evidence that can be relied on by either the governing bodies of football, their constituent member clubs or their fans to justify the differential treatment that is often sought. Further, this lack of evidence makes it almost impossible to justify to clubs why it could be beneficial for them to engage with their communities more proactively than might otherwise be the case
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