151 research outputs found

    Eksperimentasi Pembelajaran Stad Dengan Media Power Point Dan Model Bangun Ruang Materi Bangun Ruang Sisi Lengkung Ditinjau Dari Gaya Belajar

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    The objective of this research are to investigate: (1) which one that is more effective in teaching geometry, the STAD type of cooperative learning model with Power Point media or that with Geometrical Model media or that with Conventional media, (2) which learning style results in a better learning achievement and (3) which media used in the STAD learning model results in a better learning achievement in each learning style of the students.This research used the quasi-experimental method. The population of this research was the 9th-grade students of the state junior secondary schools in Ngawi regency in the academic year of 2012/2013. The samples of this research consisted of 250 students who were divided into 85 students of the first experiment class, 83 students of the second experiment class, and 82 students of the control class. The samples were taken by using stratified cluster random sampling. The data of this research were gathered through documentation, test, and questionnaire. The hypothesis of this research were tested by using unbalanced Two-way Analysis of Variance. Conclusions drawn are as follows: (1) the STAD learning model with the Power Point media is better than the STAD learning models with the Geometrical Model and the Conventional media whereas the STAD learning model with the Geometrical Model media is equal to the STAD learning model with the Conventional media; (2) the students with the kinesthetic learning style have a better learning achievement than those with the visual and auditory learning styles whereas the students with the visual learning style have an equal learning achievement to those with the auditory learning style; (3) the STAD learning model with the Power Point media results in a better learning achievement than that with the Conventional media whereas the STAD learning model with the Power Point media results in an equal learning achievement to that with the Geometrical Model media and the STAD learning model with the Power Point media results in an equal learning achievement to that with the Conventional media in the visual learning style; (4) the STAD learning model with the all of the three types of media results in an equal learning achievement in the auditory learning style; and (5) the STAD learning model with the Geometrical Model media results in a better learning achievement than that with the Conventional media whereas the STAD learning model with the Power Point media results in an equal learning achievement to that with the Geometrical Model media and the STAD learning model with the Power Point media results in an equal learning achievement to that with the Conventional media in the kinesthetic learning style

    Effectiveness of a Novel Qigong Meditative Movement Practice for Impaired Health in Flight Attendants Exposed to Second-Hand Cigarette Smoke

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    This single-arm non-randomized pilot study explores an in ervention to improve the health of flight attendants (FA) exposed to second-hand cigarette smoke prior to the smoking ban on commercial airlines. This group exhibits an unusual pattern of long-term pulmonary dysfunction. We report on Phase I of a two-phase clinical trial; the second Phase will be a randomized controlled trial testing digital delivery of the intervention. Subjects were recruited in the Northeastern US; testing and intervention were administered in 4 major cities. The intervention involved 12h of training in Meditative Movement practices. Based on recent research on the effects of nicotine on fear learning, and the influence of the autonomic nervous system on immune function, our hypothesis was that this training would improve autonomic function and thus benefit a range of health measures. Primary outcomes were the 6-min walk test and blood levels of C-reactive protein. Pulmonary, cardiovascular, autonomic, and affective measures were also taken. Fourteen participants completed the training and post- testing. There was a 53% decrease in high sensitivity C-Reactive Protein ( p ≤ 0.05), a 7% reduction in systolic blood pressure ( p ≤ 0.05), a 13% increase in the 6-min walk test ( p ≤ 0.005), and significant positive changes in several other outcomes. These results tend to confirm the hypothesized benefits of MM training for this population, and indicate that autonomic function may be important in the etiology and treatment of their symptoms. No adverse effects were reported

    Diabetes Mellitus Due to Liver Cirrhosis in 33-Year-Old Female

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    Impaired glucose metabolism can occur in patient with chronic liver disease, either it is impaired glucose tolerance or diabetes mellitus (DM). DM due to liver cirrhosis is known as hepatogenous diabetes (HD). HDis different from type 2 DM in clinical signs and management.A 33-year-old female came with chief complaint of fatigue since three days before admission. Patient also complained of nausea, vomiting, and increased abdominal circumference since one year ago. Patient wasdiagnosed with DM two months ago. From physical examination, anemic and ascites without signs of cirrhosis were obtained. Laboratory test showed mild anemia with hemoglobin levels 6.5 g/dL, elevated serum bilirubinand liver enzymes, decreased serum albumin, prolonged prothrombin time and elevated random blood glucose. Serologic test showed chronic hepatitis B with HBV DNA 1.61 x 104 copy/mL. The abdominal ultrasound resultshowed liver cirrhosis with ascites.The patient was diagnosed with hepatogenous diabetes in liver cirrhosis due to chronic hepatitis B infection and anemia of chronic disease. The management of this patient was quite complex especially in administrationof oral antidiabetic agent which could affect the liver function

    Care of patients with pulmonary arterial hypertension during the coronavirus (COVID-19) pandemic

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    The COVID-19 pandemic presents many unique challenges when caring for patients with pulmonary hypertension. The COVID-19 pandemic has altered routine standard of care practice and the acute management particularly for those patients with pulmonary arterial hypertension, where pulmonary arterial hypertension-specific treatments are used. It is important to balance the ongoing care and evaluation of pulmonary arterial hypertension patients with exposure risk to COVID-19 for patients coming to clinic or the hospital. If there is a morbidity and mortality benefit from starting pulmonary arterial hypertension therapies, for example in a patient with high-likelihood of pulmonary arterial hypertension, then it remains important to complete the thorough evaluation. However, the COVID-19 outbreak may also represent a unique time when pulmonary hypertension experts have to weigh the risks and benefits of the diagnostic work-up including potential exposure to COVID-19 versus initiating targeted pulmonary arterial hypertension therapy in a select high-risk, high likelihood World Symposium Pulmonary Hypertension Group 1 pulmonary arterial hypertension patients. This document will highlight some of the issues facing providers, patients, and the pulmonary arterial hypertension community in real-time as the COVID-19 pandemic is evolving and is intended to share expected common clinical scenarios and best clinical practices to help the community at-large

    Paediatric and obstetric outcomes at a faith-based hospital during the 100-day public sector physician strike in Kenya

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    Published reviews of national physician strikes have shown a reduction in patient mortality. From 5 December 2016 until 14 March 2017, Kenyan physicians in the public sector went on strike leaving only private (not-for-profit and for-profit) hospitals able to offer physician care. We report on our experience at AIC-Kijabe Hospital, a not-for-profit, faith-based Kenyan hospital, before, during and after the 100-day strike was completed by examining patient admissions and deaths in the time periods before, during and after the strike. The volume of patients increased and exceeded the hospital's ability to respond to needs. There were substantial increases in sick newborn admissions during this time frame and an additional ward was opened to respond to this need. Increased need occurred across all services but staffing and space limited ability to respond to increased demand. There were increases in deaths during the strike period across the paediatric medical, newborn, paediatric surgical and obstetric units with an OR (95% CI) of death of 3.9 (95% CI 2.3 to 6.4), 4.1 (95% CI 2.4 to 7.1), 7.9 (95% CI 3.2 to 20) and 3.2 (95% CI 0.39 to 27), respectively. Increased mortality across paediatric and obstetrical services at AIC-Kijabe Hospital correlated with the crippling of healthcare delivery in the public sector during the national physicians' strike in Kenya

    Sonar-induced pressure fields in a post-mortem common dolphin

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    Author Posting. © Acoustical Society of America, 2012. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 131 (2012): 1595-1604, doi:10.1121/1.3675005.Potential physical effects of sonar transmissions on marine mammals were investigated by measuring pressure fields induced in a 119-kg, 211-cm-long, young adult male common dolphin (Delphinus delphis) cadaver. The specimen was instrumented with tourmaline acoustic pressure gauges used as receiving sensors. Gauge implantation near critical tissues was guided by intraoperative, high-resolution, computerized tomography (CT) scanning. Instrumented structures included the melon, nares, ear, thoracic wall, lungs, epaxial muscle, and lower abdomen. The specimen was suspended from a frame equipped with a standard 50.8-mm-diameter spherical transducer used as the acoustic source and additional receiving sensors to monitor the transmitted and external, scattered field. Following immersion, the transducer transmitted pulsed sinusoidal signals at 5, 7, and 10 kHz. Quantitative internal pressure fields are reported for all cases except those in which the gauge failed or no received signal was detected. A full necropsy was performed immediately after the experiment to examine instrumented areas and all major organs. No lesions attributable to acoustic transmissions were found, consistent with the low source level and source-receiver distances.Work supported by NOPP through ONR Grant No. N000140710992. Work at CSI additionally supported by ONR Grant No. N000140811231

    Studi Emisi Gas Buang 4 Stroke SI Engine Dengan Multi Fuel Reformer Berbahan Bakar Blended Gasoline-Ethanol

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    Abstract— The limitations of energy sources and the threat of global warming to the environment are two substantial aspects that encourage the use of biofuel based fuels, especially alcohol. The availability of raw materials to produce alcohol is very abundant and is quickly produced using locally simple technology. These factors provide opportunities for engine development with multi-fuel based alcohol in particular. Some Ether / Alcohol fuels are commonly used as low additives for gasoline fuels to increase Octane numbers as well as oxygen fractions. Alcohol combustion process that occurs cleaner and carbon monoxide (CO) production is lower than gasoline. In general, alcohol can be used as pure fuel in Spark Ignition (SI) engines but requires some modification of additional tools on the engine. This research resulted in additional tools in the form of Multi-Fuel Reformer (MFR) 4-stroke stroke Engine so that the engine can adapt and be compatible with Blended fuel Gasoline-Ethanol. The addition of the MFR tothe SI Engine reduces carbon monoxide (CO) emissions significantly compared to without a single-fuel MFR of gasoline up to 18.85%. The addition of MFR with the use of 10-30% blended fuel to the engine can reduce CO emissions by an average of 65.63% compared to engines with 10-30% blended fuel ethanol without using MFR.Keywords—Multi Fuel Reformer, Blended Fuel, SI Engine, ethano

    Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set

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    We report a measurement of the bottom-strange meson mixing phase \beta_s using the time evolution of B0_s -> J/\psi (->\mu+\mu-) \phi (-> K+ K-) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at sqrt(s)= 1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb-1 of integrated luminosity. We report confidence regions in the two-dimensional space of \beta_s and the B0_s decay-width difference \Delta\Gamma_s, and measure \beta_s in [-\pi/2, -1.51] U [-0.06, 0.30] U [1.26, \pi/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of \beta_s, we also determine \Delta\Gamma_s = 0.068 +- 0.026 (stat) +- 0.009 (syst) ps-1 and the mean B0_s lifetime, \tau_s = 1.528 +- 0.019 (stat) +- 0.009 (syst) ps, which are consistent and competitive with determinations by other experiments.Comment: 8 pages, 2 figures, Phys. Rev. Lett 109, 171802 (2012
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