1,069 research outputs found

    A theoretical investigation of the propagation of TEno-waves in dielectrically loaded waveguides

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    The propagation of Teno nodes in rectangular wave-guids that contain two dielectric slabs parallel to the slide walls and extending over the full height of the guide is theorhetically investigated

    The Use of Journaling to Assess Student Learning and Acceptance of Evolutionary Science

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    Journal writing was introduced as a means to assess student learning and acceptance of evolutionary science in a nonmajors’ biology course taught at a community college. Fourteen weeks of instruction were performed, each initiated by student-centered, in-class activities and culminated by a discussion, to elucidate tentative conclusions based on evidence from in-class activities. Students (N = 31) engaged in explicit and reflective writing (i.e., journaling) at four points during the semester, providing responses to the following questions: (a) what influence did the recent inclass activities and discussion have on your understanding of evolution (b) has your view (of evolution) changed (explain your response and provide support or examples of what influenced the change); and (c) what aspects of the nature of science have your observed in recent lessons/activities. Journal entries were coded on a continuum as informed (I), somewhat informed (SWI), or not informed (NI) regarding the accuracy of evidence cited with respect to evolutionary science. Initial journal entries were judged as strongly NI and highly negative toward evolution. Data analyses at the conclusion of the course, however, indicated a statistically significant shift in student responses toward an informed view more consistent with evolutionary principles and less personally resistant to biological evolution

    The Congregation\u27s Right to Choose Its Pastor

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    The image of the pastor or religious leader, his authority, function and role, is currently a lively topic for discussion, as church groups merge and emerge, as clergy are robed and disrobed, as town and gown and church and state issues erupt and disrupt the peace of the church and the parish. Therefore this translation of Carl Ferdinand Wilhelm Walther\u27s essay, Das Gemeindewahlrecht, delineating the voting rights of the congregation, appears at an appropriate time. The Lutheran Church-Missouri Synod has not beenhttps://scholar.csl.edu/ebooks/1036/thumbnail.jp

    Jobs 4.0: Are Botswana Workers Ready?

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    This paper attempts to unravel the potential social effects of the fourth industrial revolution (4IR) on Botswana employees. The authors investigated employees’ level of awareness and preparedness for an era of full blown 4IR adoption. Utilizing purposive sampling, a self-administered questionnaire was distributed to a sample of 52 employees in Gaborone. This work employed the Unified Theory of Acceptance and Use of Technology model (UTAUT). The major findings of the study are: 50% of respondents confirmed their preparedness for the adoption of 4IR technologies; 48% believed that the rest of employees in their organization were prepared for 4IR; 65% said they were prepared to embrace and take advantage of the efficiencies brought about by 4IR; job roles are likely to change significantly with some roles disappearing and new roles emerging; and critical thinking, complex problem solving, innovation and digital related skills are bound to be more in demand. The outcomes of this research will serve as a wakeup call to Botswana employees, to equip themselves and future generations with requisite skills, for the changing roles. Furthermore, organizations will also use the outcomes to consider reskilling their employees accordingly. For educators, the study will encourage consideration and alignment of the curricular while in terms of and for policy formulation, it will engender reflecting on the regulatory frameworks to align them to the demands of the new era.Keywords: Fourth Industrial Revolution, industry 4.0, jobs4.0, future of jobs DOI: 10.7176/DCS/11-2-05 Publication date: February 28th 202

    Management of Pulmonary Hypertension From Left Heart Disease in Candidates for Orthotopic Heart Transplantation

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    Pulmonary hypertension in left heart disease (PH-LHD) commonly complicates prolonged heart failure (HF). When advanced, the PH becomes fixed or out of proportion and is associated with increased morbidity and mortality in patients undergoing orthotopic heart transplant (OHT). To date, the only recommended treatment of out of proportion PH is the treatment of the underlying HF by reducing the pulmonary capillary wedge pressure (PCWP) with medications and often along with use of mechanical circulatory support. Medical therapies typically used in the treatment of World Health Organization (WHO) group 1 pulmonary arterial hypertension (PAH) have been employed off-label in the setting of PH-LHD with varying efficacy and often negative outcomes. We will discuss the current standard of care including treating HF and use of mechanical circulatory support. In addition, we will review the studies published to date assessing the efficacy and safety of PAH medications in patients with PH-LHD being considered for OHT

    Perencanaan Sistem Rainwater Harvesting Yang Berbasis Value Engineering

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    Beberapa tahun terakhir, air hujan mulai dipertimbangkan untuk memenuhi sebagian kebutuhan air domestik di perkotaan. Salah satu cara pemanfaatan air hujan untuk daerah perkotaan adalah dengan menggunakan sistem Rainwater Harvesting (RWHS). Pada penelitian ini, RWHS dicoba diterapkan pada sebuah Perumahan X yang terletak di Surabaya Barat. Terdapat beberapa komponen RWHS yang direncanakan yaitu: talang air, pipa penyaluran, dan bak tampungan. Teknik value engineering digunakan dalam proses perencanaan sistem ini untuk merencanakan sebuah sistem yang efektif dan efisien. Selain itu, metode Analytical Hierarchy Process (AHP) juga digunakan pada perencanaan sistem ini untuk mencari aspek desain prioritas menurut warga Perumahan X dan hasil analisanya akan dijadikan acuan perencanaan. Aspek desain yang dianalisis dalam penelitian ini adalah biaya, kualitas, perawatan, estetika, dan dampak lingkungan. Hasil penelitian menunjukkan bahwa aspek desain yang paling diprioritaskan adalah dampak lingkungan, diikuti oleh biaya dan kualitas, perawatan, dan terakhir estetika. Talang air yang dipakai adalah talang kotak 120 mm x 110 mm dengan panjang talang 13,9 m. Pipa mendatar dan pipa tegak memakai pipa tipe AW dengan diameter 3/4” dan panjang masing-masing 1,44 m dan 9,55 m. Pada perencanaan bak tampungan dipillih mengunakan bak tampungan dengan kapasitas minimal 2000 liter. Kombinasi perencanaan RWHS terbaik yang disarankan adalah talang air menggunakan talang PVC, pipa penyaluran menggunakan pipa PVC, dan bak tampungan menggunakan bak tampungan plastik dengan kapasitas 2200 liter

    Abnormal Chest X-Ray Leading to Diagnosis of Partial Anomalous Pulmonary Venous Connection

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    With the growing use of imaging to aid in both diagnosis and treatment of patients presenting with a myriad of clinical presentations, incidental findings on imaging have become commonplace. Partial anomalous pulmonary venous connection (PAPVC) is a rare congenital cardiovascular condition that often goes undiagnosed due to lack of symptoms early in life. In adulthood, it can manifest clinically as right-sided heart failure or pulmonary hypertension. We present a case of PAPVC, which, like most cases, was discovered incidentally on chest X-ray
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