1,745 research outputs found

    Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow

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    The Canadian Weather Radar Network is currently undergoing an upgrade to po- larimetric, S-Band radar systems. Forecasting experiences in Canada with the legacy C-Band radars lends to the idea that the narrow beamwidth of C-Band sys- tems is preferential for nowcasting the typical shallow lake-effect snow event. This idea is tested by comparing moments from King City radar, just north of Toronto, to the neighboring Buffalo, NY WSR-88D. By transforming the radar data from spherical coordinates to the Cartesian coordinate system, the two radars can be compared directly. Objective analysis indicates that the spatial patterns of reflec- tivity are very similiar, with King maintaining the obvious advantage in resolving fine scale features of lake-effect snow bands through a narrow physical beamwidth. Also, it is shown that comparatively, the mean reflectivity values obtained through this method are similiar, but King City maintains a slight advantage over Buffalo in detecting shallow snow-squalls. In regards to differential reflectivity, a case by case comparison is performed to determine any event biases from the King City radar. With biases removed, both radars indicate similiar mean values of differential re- flectivity, which agrees with theoretical expectations. Results also indicate that the bulk hydrometeor type in synoptic snowfalls tend towards pristine crystals, while lake-effect events tend towards aggregated snow

    Feedback control of intensified fed-batch mammalian cell culture using inline raman spectroscopy

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    Please click Additional Files below to see the full abstract

    2015 KSU Concerto Competition Final Round

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    KSU School of Music presents 2015 KSU Concerto Competition Final Round.https://digitalcommons.kennesaw.edu/musicprograms/1169/thumbnail.jp

    Concert recording 2015-04-19

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    [Track 01]. Suite no. 3 for solo cello. Prelude / J.S. Bach -- [Track 02]. Suite no. 4 for solo cello. Sarabande ; Bourree I & II / J.S. Bach -- [Track 03]. Two pieces / Anton von Webern -- [Track 04]. Song without words / Felix Mendelssohn -- [Track 05]. Suite no. 2 for solo cello. Prelude / J.S. Bach -- [Track 06]. Sicilienne / Gabriel Fauré -- [Track 07]. Scherzo / Daniel van Goens -- [Track 08]. Suite no. 5 for solo cello. Prelude / J.S. Bach -- [Track 09]. Suite no.5 for solo cello. Allemande ; Courante ; Sarabande ; Gavotte I & II ; Gigue / J.S. Bach

    Clinical classification of symptomatic heterotopic pancreas of the stomach and duodenum: A case series and systematic literature review

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    BACKGROUND: Heterotopic pancreas (HP) is an aberrant anatomic malformation that occurs most commonly in the upper gastrointestinal tract. While the majority of heterotopic pancreatic lesions are asymptomatic, many manifest severe clinical symptoms which require surgical or endoscopic intervention. Understanding of the clinical manifestations and symptoms of HP is limited due to the lack of large volume studies in the literature. The purpose of this study is to review symptomatic cases at a single center and compare these to a systematic review of the literature in order to characterize common clinical manifestations and treatment of this disease. AIM: To classify the common clinical manifestations of heterotopic pancreas. METHODS: A retrospective review was conducted of pathologic samples containing heterotopic pancreas from 2000-2018. Review was limited to HP of the upper gastrointestinal tract due to the frequency of presentation in this location. Symptomatic patients were identified from review of the medical records and clinical symptoms were tabulated. These were compared to a systematic review of the literature utilizing PubMed and Embase searches for papers pertaining to heterotopic pancreas. Publications describing symptomatic presentation of HP were selected for review. Information including demographics, symptoms, presentation and treatment were compiled and analyzed. RESULTS: Twenty-nine patient were identified with HP at a single center, with six of these identified has having clinical symptoms. Clinical manifestations included, gastrointestinal bleeding, gastric ulceration with/without perforation, pancreatitis, and gastric outlet obstruction. Systemic review of the literature yielded 232 publications detailing symptomatic cases with only 20 studies describing ten or more patients. Single and multi-patient studies were combined to form a cohort of 934 symptomatic patients. The majority of patients presented with abdominal pain (67%) combined with one of the following clinical categories: (1) Dyspepsia, (n = 445, 48%); (2) Pancreatitis (n = 260, 28%); (3) Gastrointestinal bleeding (n = 80, 9%); and (4) Gastric outlet obstruction (n = 80, 9%). The majority of cases (n = 832, 90%) underwent surgical or endoscopic resection with 85% reporting resolution or improvement in their symptoms. CONCLUSION: Heterotopic pancreas can cause significant clinical symptoms in the upper gastrointestinal tract. Better understanding and classification of this disease may result in more accurate identification and treatment of this malformation

    A Required College Wellness Course Changes Beliefs, Attitudes, and Behaviors Related to Physical Activity

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    We examined effects of a required college health and wellness course on students’ physical activity (PA) attitudes and behaviors. A survey based on models of behavior change was emailed (September 2016 – May 2017) to all students at a liberal arts college. Of 408 students who responded, 217 had completed the course and 191 had not. Students who had taken the course reported more confidence in their ability to improve their physical fitness; found more encouragement from cues to action; and met recommended guidelines for weekly PA more than students who had not taken the course. Compared to males, females had less confidence in their ability to increase PA and improve fitness and overall health. Females perceived barriers to PA as more discouraging and cues to action as less encouraging. Data showed a required college health and wellness course altered students’ PA attitudes and behaviors
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