The Effectiveness of the Questioning, Answering, Sharing, Extending, and Evaluating Learning Model on Improving Students Critical Thinking Skills

The purpose of this research is to examine the efficacy of the QASEE learning model in increasing critical thinking abilities of students in class XI at UPT SMA Negeri 6 Wajo. This study was carried out at SMA Negeri 6 Wajo during the academic year 2021/2022. The sample strategy employed is a basic random sampling method with a quasi-experimental design pattern with nonequivalent control groups. Essay exams were used to collect data on critical thinking abilities. The acquired data was then examined using the ANOVA test. Data study using the SPSS 26 for Windows tool reveals that the QASEE learning model has an impact on developing students' critical thinking abilities. The experimental class's N-Gain value for critical thinking abilities is 0.71, whereas the control class's N-Gain value is 0.42. Based on the ANOVA test findings, the significant value of critical thinking skills is less than 0.05, indicating that the QASEE learning model has an impact on increasing students' critical thinking abilities

Adverse Events Following Immunization (AEFI) in Nursing Science Program Sam Ratulangi University Students Based on the Type of COVID-19 Vaccine

Aims: The purpose of this study is to describe Adverse Events Following Immunization(AEFI) among Nursing Science Program Sam Ratulangi University students based on the type of Covid-19 vaccination that they received.Methods: This investigation was conducted using a descriptive retrospective study approach. Purposive sampling was utilized to choose the sample for this study, which included 183 undergraduate students in the Nursing Science Program Sam Ratulangi University.Results: After receiving the first dosage of the vaccination, Nursing Science Program Sam Ratulangi University students most frequently reported headache and muscle pain (30.4%), followed by pain and weakness in the injected arm (20.8%), and swelling at the injection site (26%). Additionally, there were students who received doses 1, 2, and 3 of the vaccination who did not exhibit any side effects. These students were 45 at dosage I, 73 at dose II, and 45 at dose III. At dose 1, the majority of Nursing Science Program Sam Ratulangi Universitystudents (73.2%) exhibited AEFI symptoms for less than a day; at doses II and III, 43.7% and 31.1%, respectively, reported experiencing symptoms for one to three days.Conclusion: Based on the research that has been done, it can be said that Nursing Science Program Sam Ratulangi University students only encounter mild AEFI symptoms. So it is hoped that the general public or students won't have to worry about the COVID 19 vaccine causing AEFI symptoms and can get vaccinated right away to strengthen their immunity against the virus

MENGIDENTIFIKASI PANDANGAN NATURE OF SCIENCE (VNOS) CALON GURU KIMIA

Sangat penting untuk mengetahui pandangan calon guru kimia tentang Nature of Science karena akan mempengaruhi kinerja disaat menjadi guru yang sesungguhnya. Guru yang memiliki pandangan mengenai nature of science (VNOS) yang benar, akan mentransfer kemampuan tersebut kepada para siswanya, begitu juga sebaliknya pemahaman yang salah juga akan tertularkan kepada para siswa. Aspek VNOS yang akan dibahas meliputi (1) Tentativeness, (2) Empirical basis, (3)Subjectivity, (4) Creativity, (5) Social/cultural embeddedness, dan (6) Theories and laws. Metode yang digunakan dalam penelitian ini adalah deskriptif. Instrumen yang digunakan dalam penelitian ini adalah kuisioner VNOS form B yang telah diadopsi dari Lederman dan pedoman wawancara. Pandangan calon guru kimia dijelaskan dan dikategorikan sebagai naïve, eclectic, dan informed untuk setiap aspek NOS. Hasil penelitian menunjukkan bahwa calon guru kimia memiliki pandangan yang cukup memadai tentang Nature of Science

Pengembangan Video Tutorial Senam Dasar

Senam dasar adalah nama lain dari senam lantai, senam dasar juga gerakan berbagai bentuk dan ragam gerakan dasar, dalam melakukan latihan senam dasar, biasanya tanpa mempergunakan alat akan tetapi dapat juga dilakukan dengan alat untuk menambah beban latihan. Tujuan Penelitian ini adalah menghasilkan suatu produk berupa video tutorial senam dasar untuk menjadi referensi media pembelajaran senam dasar. Penelitian ini merupakan penelitian Research and Development (R&D) atau penelitian pengembangan karena tujuannya menghasilkan suatu produk, untuk proses pembuatan video tutorial senam dasar yang divalidasi oleh 2 ahli materi dan divalidasi oleh 1 ahli media. validasi ahli materi dilakukan satu kali dan ahli media 2 kali. 1 minggu terakhir yaitu proses uji coba lapangan. hasil validasi ahli materi I diperoleh hasil 91% (Sangat Baik), ahli materi II 94% (Sangat Baik). untuk hasil validasi ahli media tahap I 86% (Sangat Baik) dan ahli media tahap II 96% (Sangat Baik). Serta berdasarkan uji kelompok kecil 92% dan uji kelompok besar 90,5%. Dengan demikian dapat disimpulkan bahwa produk telah dinyatakan “Sangat Baik” digunakan sebagai media referensi pembelajaranSenam dasar adalah nama lain dari senam lantai, senam dasar juga gerakan berbagai bentuk dan ragam gerakan dasar, dalam melakukan latihan senam dasar, biasanya tanpa mempergunakan alat akan tetapi dapat juga dilakukan dengan alat untuk menambah beban latihan. Tujuan Penelitian ini adalah menghasilkan suatu produk berupa video tutorial senam dasar untuk menjadi referensi media pembelajaran senam dasar. Penelitian ini merupakan penelitian Research and Development (R&D) atau penelitian pengembangan karena tujuannya menghasilkan suatu produk, untuk proses pembuatan video tutorial senam dasar yang divalidasi oleh 2 ahli materi dan divalidasi oleh 1 ahli media. validasi ahli materi dilakukan satu kali dan ahli media 2 kali. 1 minggu terakhir yaitu proses uji coba lapangan. hasil validasi ahli materi I diperoleh hasil 91% (Sangat Baik), ahli materi II 94% (Sangat Baik). untuk hasil validasi ahli media tahap I 86% (Sangat Baik) dan ahli media tahap II 96% (Sangat Baik). Serta berdasarkan uji kelompok kecil 92% dan uji kelompok besar 90,5%. Dengan demikian dapat disimpulkan bahwa produk telah dinyatakan “Sangat Baik” digunakan sebagai media referensi pembelajara

Characteristics and Complications of Tuberculous Meningitis Patients with Hydrochepalus Undergone Fluid Diversion in Dr. Hasan Sadikin General Hospital, Bandung

Objective: To describe the clinical characteristics and complications observed in tuberculous meningitis (TBM) patients with hydrocephalus who had undergone fluid diversion management.Methods: This was a cross-sectional descriptive observational study involving 28 TBM patients with hydrocephalus aged 0–5 years who had undergone ventriculoperitoneal shunt or extraventricular drainage in the period of July 2011 to July 2016 in Dr. Hasan Sadikin General Hospital, Bandung. Age, gender, head circumferences, nutritional status, and classical characteristics such as sunset eye, frontal bossing, cracked pot sign, venectation as well as complications such as infection, phlebitis, and exposed shunt documented in the hospital medical records were analyzed.Result: The study discovered that infant group was predominant (21/28). Some of the patients had macrocephalus (7/28) and 18 had good nutrition status (18/28). There were 4 patients with frontal bossing characteristics (4/28) and almost none was found with others classic hydrocephalus characteristics. This study found no complication such as infection, phlebitis, and exposed shunt in TBM patients with hydrocephalus who had undergone fluid diversion therapy in Dr. Hasan Sadikin General Hospital, Bandung.Conclusion: One of the most dominan characteristics of TBM patients with hydrocephalus is frontal bossing. Tuberculous meningitis patients with hydrocephalus in our center did not show any fluid diversion-related complications such as infection, phlebitis, or exposed shunt.Keywords: Tuberculous meningitis, hydrocephalus, fluid diversion DOI: 10.15850/ijihs.v6n1.104

Constraints on neutrino-photon interactions from rare Z decays

It is shown that the rare decays $Z \to \nu \bar{nu} \gamma$ and $Z \to \nu \bar{\nu} \gamma \gamma$ are useful to put model-independent bounds on neutrino-one-photon and neutrino-two-photon interactions. The results are then used to constrain the $\tau$ neutrino magnetic moment and the double radiative decay $\nu_j \to \nu_i \gamma \gamma$. It is found that the decay $Z \to \nu \bar{nu} \gamma$ gives a more stringent bound on the $\tau$ neutrino magnetic moment than that obtained from $Z \to \nu \bar{\nu} \gamma \gamma$; the latter decay in turn gives limits on the neutrino-two-photon interaction that are less stringent than those obtained for a sterile neutrino $\nu_s$ from the analysis of $\nu_\mu N \to \nu_s N$ conversion.Comment: 11 pages, 5 figures, elsart forma

Constraints on a Massive Dirac Neutrino Model

We examine constraints on a simple neutrino model in which there are three massless and three massive Dirac neutrinos and in which the left handed neutrinos are linear combinations of doublet and singlet neutrinos. We examine constraints from direct decays into heavy neutrinos, indirect effects on electroweak parameters, and flavor changing processes. We combine these constraints to examine the allowed mass range for the heavy neutrinos of each of the three generations.Comment: latex, 29 pages, 7 figures (not included), MIT-CTP-221

High-Energy Astrophysics and Cosmology

Interfaces between high-energy physics, astrophysics and cosmology are reviewed, with particular emphasis on the important roles played by high-energy cosmic-ray physics. These include the understanding of atmospheric neutrinos, the search for massive cold dark matter particles and possible tests of models of quantum gravity. In return, experiments at the LHC may be useful for refining models of ultra-high-energy cosmic rays, and thereby contributing indirectly to understanding their origin. Only future experiments will be able to tell whether these are due to some bottom-up astrophysical mechanism or some top-down cosmological mechanism.Comment: 12 pages, 16 eps figures, uses espcrc2.sty. Talk presented at the XIIth International Symposium on Very-High-Energy Cosmic-Ray Interactions, CERN, July 200

Quark-hadron duality in electron scattering

The duality between partonic and hadronic descriptions of physical phenomena is one of the most remarkable features of strong interaction physics. A classic example of this is in electron-nucleon scattering, in which low-energy cross sections, when averaged over appropriate energy intervals, are found to exhibit the scaling behavior expected from perturbative QCD. We present a comprehensive review of data on structure functions in the resonance region, from which the global and local aspects of duality are quantified, including its flavor, spin and nuclear medium dependence. To interpret the experimental findings, we discuss various theoretical approaches which have been developed to understand the microscopic origins of quark-hadron duality in QCD. Examples from other reactions are used to place duality in a broader context, and future experimental and theoretical challenges are identified.Comment: 198 pages, 80 figures, to appear in Physics Report

Dark Matter and Neutrino Masses from Global U(1)B−LU(1)_{B-L} Symmetry Breaking

We present a scenario where neutrino masses and Dark Matter are related due to a global $U(1)_{B-L}$ symmetry. Specifically we consider neutrino mass generation via the Zee--Babu two-loop mechanism, augmented by a scalar singlet whose VEV breaks the global $U(1)_{B-L}$ symmetry. In order to obtain a Dark Matter candidate we introduce two Standard Model singlet fermions. They form a Dirac particle and are stable because of a remnant $Z_2$ symmetry. Hence, in this model the stability of Dark Matter follows from the global $U(1)_{B-L}$ symmetry. We discuss the Dark Matter phenomenology of the model, and compare it to similar models based on gauged $U(1)_{B-L}$. We argue that in contrast to the gauged versions, the model based on the global symmetry does not suffer from severe constraints from $Z'$ searches.Comment: minor improvements, matches published versio