8,081 research outputs found
Does Smoking Protect against Being Hospitalized for COVID-19?
Gonzalez-Rubio et al [...]
The Effect of Applying Predict, Organize, Rehearse, Practice, Evaluate (PORPE) Strategy on Students' Reading Comprehension
This study was conducted as an attempt to find out the effect of applying Predict, Organize, Rehearse, Practice, Evaluate (PORPE) strategy on students' reading comprehension. This study used experimental design. The population of this study was students of Grade XI, Senior High School (Sekolah Menengah Atas: SMA) Negeri 1 Lumbanjulu which consisted of 120 students. There were sixty students from the population taken as the sample in this study. The sample was divided into two randomized groups: experimental and control groups. The experimental group was taught by using PORPE strategy, while the control group was taught by using conventional method.To obtain the reliability of the test, the writer applied Kuder Richardson 21 formula (KR-21). The result of the reliability was 0.81. The data were analyzed by using t-test formula. The analysis showed that the scores of the students in the experimental group were significantly higher than the scores of the students in the control group at the level of significance 0.05 with the degree of freedom (df) 58 , t-observed value 2.8 > t-table value 2.00. The findings indicated that using PORPE strategy significantly affected the students' reading comprehension. Therefore, the null hypothesis (Ho) was rejected and the alternative hypothesis (Ha) was accepted
Comparison of Blood Pressure and Blood Glucose Levels in Chronic Kidney Failure Patients Before and After Hemodialysis Treatment in RSMH Palembang
Gagal ginjal kronik ditandai dengan menurunnya fungsi ginjal secara ireversibel yang telah berlansung lebih dari tiga bulan dengan nilai laju filtrasi glomerulus kurang dari 15 ml/menit/1,73m2. Hemodialisis merupakan salah satu terapi pengganti ginjal yang paling sering dilakukan, namun hemodialisis memiliki komplikasi terhadap perubahan tekanan darah dan kadar gula darah. Penelitian ini bertujuan untuk mengetahui perbandingan tekanan darah dan kadar gula darah pada pasien gagal ginjal kronik sebelum dan sesudah hemodialisis di unit hemodialisis RSUP dr. Mohammad Hoesin Palembang. Penelitian ini merupakan penelitian observasional analitik dengan desain longitudinal menggunakan pengukuran berulang. Subjek penelitian adalah 74 pasien gagal ginjal kronik yang memenuhi kriteria inklusi dan eksklusi. Data penelitian diperoleh melalui data primer (pengukuran dan wawancara) dan dianalisis menggunakan Paired T-Test dan Wilcoxon. Rata-rata tekanan darah sebelum hemodialisis adalah 150,14 ± 30,045 mmHg (sistolik) dan 83,99 ± 16,469 mmHg (diastolik) serta sesudah hemodialisis adalah 159,66 ± 33,570 mmHg (sistolik) dan 86,35 ± 15,534 mmHg (diastolik). Rata-rata kadar gula darah sebelum hemodialisis adalah 161,61 ± 80,750 mg/dl serta sesudah hemodialisis adalah 131,51 ± 49,430 mg/dl. Hasil uji Paired T-Test menunjukkan perbandingan tekanan sistolik yang signifikan (p = 0,007), sedangkan hasil uji Wilcoxon menunjukkan perbandingan diastolik yang tidak signifikan (p = 0,193) dan perbandingan kadar gula darah yang signifikan (p = 0,000). Terdapat perbandingan tekanan darah sistolik yang signifikan, tekanan darah diastolik yang tidak signifikan, dan kadar gula darah yang signifikan sebelum dan setelah hemodialisis pada pasien gagal ginjal kronik di RSUP dr. Mohammad Hoesin Palembang
Dispersive diffusion controlled distance dependent recombination in amorphous semiconductors
The photoluminescence in amorphous semiconductors decays according to power
law at long times. The photoluminescence is controlled by
dispersive transport of electrons. The latter is usually characterized by the
power of the transient current observed in the time-of-flight
experiments. Geminate recombination occurs by radiative tunneling which has a
distance dependence. In this paper, we formulate ways to calculate reaction
rates and survival probabilities in the case carriers execute dispersive
diffusion with long-range reactivity. The method is applied to obtain tunneling
recombination rates under dispersive diffusion. The theoretical condition of
observing the relation is obtained and theoretical
recombination rates are compared to the kinetics of observed photoluminescence
decay in the whole time range measured.Comment: To appear in Journal of Chemical Physic
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