bluuebunny/crossref_metadata_2025 huggingface dataset:
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING BERBANTUAN MEDIA PLASTISIN UNTUK MENINGKATAKAN MOTIVASI BELAJAR PESERTA DIDIK PADA MATERI BENTUK MOLEKUL KELAS X SMAN 1 SEKADAU
Authors: Harisandi Yudie
Published: September 2022

AbstractThe purpose of classroom action research is to solve real problems that occur in the classroom and increase the real activities of teachers in their professional development activities. The classroom action research design used is the Kemmis model, which consists of 4 stages of research, namely planning, implementation, observation, and reflection. The results of data analysis showed that the teacher's activity in implementing discovery learning through animation media on chemical bonding material at SMAN 1 Sekadau increased with a percentage of 88.45% in the first cycle, 92.60% in the second cycle and 96.30% in the third cycle. Student activities in applying discovery learning through animation media on chemical bonding material at SMAN 1 Sekadau have a high percentage value in each activity. The learning outcomes of class X MIA-1 students at SMAN 1 Sekadau, experienced an increase in chemical bonding material after discovery learning was applied through animation media, namely cycle I with classical completeness in cycle I reaching 50%, cycle II 76%, and cycle III 93%. The value obtained is following the KKM standard on chemical bonding materials. Keywords: Classroom Action Research, Plasticine Media, Learning Motivation, Discovery
PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA MATERI HIDROKARBON DALAM MENINGKATKAN HASIL BELAJAR KOGNITIF PESERTA DIDIK
Authors: Sugito Sugito , Suyadi Uli Maharani
Published: September 2022

Abstract Education is a process of changing attitudes and behavior of a person or group in an effort to mature humans through teaching and training efforts; process, method, act of educating. This study aims to improve student learning outcomes through the application of the Problem Based Learning learning model on the Hydrocarbon class XI MIA 3 SMA Negeri 1 Prafi and to see the magnitude of the increase in student learning outcomes on the Hydrocarbon subject matter. This research uses Classroom Action Research (CAR) with Kurt Lewin's CAR model. The increase in student learning outcomes can be seen from the results of the pre-test and post-test that have been given to students. The data obtained were then analyzed using descriptive analysis techniques with the help of Microsoft Excel 2013 to describe the increase in each cycle. The application of the Problem Based Learning learning model, cognitive learning outcomes have increased from cycle 1 with an average value of 68.18 with the number of students achieving a KKM score of 45% and in cycle 2 with an average value of 79.40 with the number of students who achieve the KKM value of 82% so that there is an increase in the percent increase in classical learning outcomes of students 37% Keywords: Learning Model’s, Problem Based Learning, learning outcomes, Classroom Action Research
PENGARUH MODEL PEMBELAJARAN DISCOVERY LEARNING TERHADAP HASIL BELAJAR KOGNITIF PESERTA DIDIK KELAS X MIA SMA SANTO PAULUS MANOKWARI PADA MATERI SISTEM PERIODIK UNSUR
Authors: Irdawati Irdawati
Published: September 2022

AbstactThe implementation of 2013 curriculum for Senior High Schools (SMA) in Manokwari has not been fully implemented in schools. This is due to a lack of understanding in the implementation process both in planning, implementation and assessment. The 2013 curriculum emphasizes the activeness of students and teachers as facilitators. One of the efforts that can be made so that in the process of learning activities students become the center and play an active role in learning activities is to implement a learning model based on the 2013 curriculum, namely Discovery Learning. This study aims to determine the significant difference from the use of the model Discovery Learning to the cognitive learning outcomes of class X MIA students of SMA Santo Paulus Manokwari on the elemental periodic system material. The research method used is Pre-Experimental Designs with the form of One-Group Pretest-Posttest Design. The sampling technique used saturated sampling with a sample size of 15 people. The instrument used in measuring the test of students' cognitive learning outcomes is a multiple choice test. Based on the results of data processing obtained, the averagescore pretest was 41.33 and the averagescore was posttest 78.67, the standard results obtained were Gain which showed an increase in the learning ability of students before being given treatment and after being given treatment of 0.77. Based on the Paired Sample T-test, it was found that there was an effect of the use of the learning model Discovery Learning on the cognitive learning outcomes of students in class X MIA SMA Santo Paulus Manokwari on the element periodic system material with a large influence of 64% Keywords: learning model, discovery learning, cognitive learning outcomes, elemental periodic system material, SMA Santo Paulus Manokwari
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DEVISIONS (STAD) TERHADAP HASIL BELAJAR KOGNITIF PESERTA DIDIK KELAS X SMA YPK OIKOUMENE MANOKWARI PADA REAKSI REDOKS
Authors: Kapisa Orgenes Moses
Published: September 2022

Abstact  YPK Oikoumene Manokwari High School is one of the private schools located in Manokwari. This high school has implemented the 2013 curriculum with adequate facilities and infrastructure. The learning model used is still using conventional teacher-centered learning models so that students feel bored with the learning process that affects student learning outcomes. Cooperative learning model type Student Teams Achievement Divisions (STAD) which involves many students in studying the material covered in a lesson and checking their understanding of the content of the lesson. Based on the results of the research obtained on the cooperative learning model of the Student Teams Achievement Divisions (STAD) type on the cognitive learning outcomes of students, the Standard Gain results obtained with a value of 0.64 so that it can be said to have a moderate effect. The percentage of the effect obtained is 50% which shows that the cooperative learning model of the Student Teams Achievement Divisions (STAD) type has a fairly good influence on the learning outcomes of students in class X IPS SMA YPK Oikoumene Manokwari. Keywords: Cognitive Learning, Redox Reaction, Student Teams Achievement Divisions (STAD
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING DALAM UPAYA MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR PESERTA DIDIK PADA MATERI HUKUM-HUKUM DASAR KIMIA DI KELAS X MMI SMK NEGERI 2 BANAWA TAHUN PELAJARAN 2020/2021
Authors: Sofyan Sofyan
Published: September 2022

Abstrak Penelitian ini bertujuan untuk mengetahui sejauh mana model pembelajaran discovery learning dapat meningkatkan aktivitas dan hasil belajar peserta didik pada materi hukum-hukum dasar kimia di kelas X MM1 SMK Negeri 2 Banawa Tahun Pelajaran 2020/2021. Metode penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK) yang terdiri dari tiga siklus, masing-masing siklus terdapat 4 (empat) tahapan yaitu perencanaan, tindakan, observasi, dan refleksi. Penelitian ini dilaksanakan di kelas X MM1 Jurusan Multimedia SMK Negeri 2 Banawa yang berjumlah 28 siswa namun karena penelitian ini dilaksanakan saat pandemi covid 19 dengan ruang gerak yang terbatas, sehingga penelitian dilaksanakan secara sederhana dengan jumlah sampel hanya peserta didik yang datang mengikuti pembelajaran luring dengan jumlah terbatas dan bervariasi di setiap siklusnya. Penelitian ini difokuskan pada materi stoikiometri yakni hukum-hukum dasar kimia. Teknik pengumpulan data yang digunakan dengan menggunakan lembar observasi dan post test disetiap siklusnya serta dilengkapi lembar observasi. Dari hasil penelitian diperoleh nilai hasil belajar rata-rata pada siklus I sebesar 69,23 dengan ketuntasan 61,53% dan hasil observasi aktivitas peserta didik sebesar 82,5. Pada siklus II nilai hasil belajar peserta didik 72,78 dengan ketuntasan 72,22% dan hasil observasi aktivitas peserta didik sebesar 87,5. Pada siklus III nilai hasil belajar mencapai 79,37 dengan ketuntasan 81,25% dan hasil observasi aktivitas peserta didik sebesar 90,0. Hasil penelitian yang diperoleh dari siklus I sampai siklus III menunjukkan adanya peningkatan nilai rata-rata dan aktivitas peserta didik, hal ini menunjukkan bahwa pembelajaran dengan menggunakan metode discovery learning memberikan dampat yang positif bagi peserta didik dalam proses belajar mengajar. Kata kunci: Discovery Learning, Siswa, Hasil Belajar.
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING DALAM PEMBELAJARAN DARING UNTUK MENINGKATKAN HASIL BELAJAR PESERTA DIDIK KELAS XI-IPA1 SMA NEGERI 9 LUWU UTARA TAHUN PELAJARAN 2020/2021
Authors: Hardianti Hardianti
Published: September 2022

Abstrak Guru merupakan praktisi pendidikan yang memiliki peranan yang sangat penting dalam menentukan proses pembelajaran di sekolah. Permasalahan yang selama ini dihadapi dunia pendidikan kita adalah lemahnya proses pembelajaran. Keberhasilan pemahaman peserta didik terhadap ilmu kimia dapat dipengaruhi oleh pelaksanaan proses pembelajaran di sekolah. Salah satu penyebab pelajaran kimia sulit dipahami adalah ilmu kimia menuntut untuk dapat berpikir abstrak dalam bahan-bahan kajian tertentu seperti ikatan kimia, struktur atom, dan model atom. Ilmu kimia juga membutuhkan penguasaan matematika misalnya dalam bahan kajian stoikiometri, termokimia, laju reaksi, dan kesetimbangan kimia. Di samping itu, ilmu kimia terdiri atas konsep-konsep yang saling berhubungan dan berjenjang, akibatnya peserta didik kurang memahaminya. Hal ini menyebabkan peserta didik mengalami kesulitan dalam memahami konsep lain yang berhubungan dengan konsep tersebut. hal ini sesuai dengan perentase ketuntasan hasil belajar peserta didik kelas XI-IPA1 SMA Negeri 9 Luwu Utara pada mata pelajaran kimia selama masa pandemic COVID-19 hanya 45% yang mencapai KKM yakni 78 pada materi pokok Termokimia. Salah satu upaya yang dapat dilakukan untuk meningkatkan hasil belajar peserta didik adalah dengan menerapkan model pembelajaranyang dapat meningkatkan kecakapan peserta didik dalam menemukan, membentuk, dan mengembangkan pengetahuannya sendiri. Oleh karena itu, melalui model pembelajaran Discovery Learning guru diharapkan mampu memahamkan konsep dengan mengikut sertakan peserta didik secara aktif selama proses pembelajaran berlangsung, sehingga dapat menumbuhkan motivasi pada diri peserta didik, karena merasa puas atas penemuannya sendiri. Penelitian ini merupakan penelitian tindakan kelas (PTK) yang berlangsung selama tiga siklus. Subyek penelitian ini adalah peserta didik kelas XI-IPA1 SMA Negeri 9 Luwu Utara. Prosedur pengumpulan data pada penelitian ini menggunakan tes kognitif secara daring dan observasi menggunakan lembar observasi. Berdasarkan hasil analisis data diperoleh persentase ketuntasan hasil belajar peserta didik (KKM 78) meningkat dari 67% pada siklus I, menjadi 89% pada siklus II, dan 100% pada siklus III. Hal ini menandakan bahwa penerapaan model pembelajaran Discovery Learning dalam pembelajaran daring efektif meningkatkan hasil belajar peserta didik kelas XI-IPA1 SMA Negeri 9 Luwu Utara.Kata kunci: Model Pembelajaran Discovery Learning, Hasil Belajar
PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING UNTUK MENINGKATKAN HASIL BELAJAR KOGNITIF PESERTA DIDIK DI SMA NEGERI 1 MARIKIT
Authors: Tallo Nely
Published: September 2022

AbstrakPendidikan adalah proses pengubahan sikap dan tata laku seseorang atau kelompok orang dalam usaha mendewasakan manusia melalui upaya pengajaran dan pelatihan; proses, cara, perbuatan mendidik.Melalui pendidikan manusia diharapkan agar menjadi berilmu pengetahuan, kreativitas, sehat jasmani dan rohani, kepribadian yang baik, mandiri, dan bertanggung jawab. Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar kognitif kimia peserta didik pada materi bentuk molekul sub materi menentukan atom pusat, PEI dan PEB dengan penerapan model pembelajaran Discovery Learning. Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) yang terdiri dari 3 (tiga) siklus. Penelitian ini dilaksanakan di Kelas X MIPA pada SMA Negeri 1 Marikit dengan sampel yang berjumlah 12 peserta didik. Teknik pengumpulan data yang digunakan adalah tes dan lembar pengamatan (observasi). Hasil penelitian pada siklus II terjadi peningkatan hasil belajar peserta didik dari siklus I yaitu 55 dengan persentase 25%. Siklus II, diperoleh rata-rata nilai evaluasi peserta didik 76, 77 dan persentase ketuntasan hasil belajar siswa mencapai 75%. Kemudian pada siklus III terjadi peningkatan kembali terhadap hasil belajar peserta didik yaitu diperoleh rata-rata nilai evaluasi peserta didik 88,33 dengan persentase ketuntasan hasil belajar siswa mencapai 91,67%. Pengamatan terhadap pembelajaran dengan menggunakan model pembelajaran Discovery Learning terdapat tanggapan yang baik dari peserta didik. Kata kunci: Discovery Learning, hasil belajar kognitif, bentuk molekul, Penelitian Tindakan Kelas
Образование промежуточных фаз при распаде метастабильной β-фазы в титановых сплавах переходного класса
Authors: Петрова А. О. , Попов А. А. , Луговая К. И. , Жилякова М. А.
Published: September 2022

Изучен процесс выделения переходных фаз в закаленных сплавах Ti - 14 % Mo и VST3553 в интервале температур старения от 300 до 500 °C. С использованием рентгеноструктурного фазового анализа и просвечивающей электронной микроскопии установлено наличие метастабильной О″-фазы в сплавах, закаленных из β-области. Определены морфология выделившихся частиц и кинетика образования О″-фазы. Выявлено, что O'- и/или О″-фазы непрерывно связаны с выделением ω-фазы и являются переходными до температуры образования α-фазы - 500 °C.
Влияние условий охлаждения на структуру и свойства сплава ВТИ-4
Authors: Демаков С. Л. , Водолазский Ф. В. , Илларионов А. Г. , Шабанов М. А.
Published: September 2022

Исследовано влияние непрерывного охлаждения со скоростью 1,1 °C/мин и комбинированного охлаждения с изотермической выдержкой при 860 - 940 °C на структуру, фазовый состав и свойства титанового сплава ВТИ-4. Показано, что введение в режим охлаждения изотермической выдержки способствует снижению твердости и увеличению количества непревращенной β-фазы в структуре сплава. Установлено, что наиболее однородная структура без признаков вторичного распада с образованием дисперсных выделений и с максимальным количеством β-фазы формируется в результате введения изотермической выдержки при 860 °C в течение 1 ч.
Сравнение структуры и свойств трубы из титанового сплава Ti - 3 % Al - 2,5 % V с результатами цифровизации процесса ее прессования
Authors: Водолазский Ф. В. , Илларионов А. Г. , Логинов Ю. Н. , Космацкий Я. И. , Постыляков А. Ю.
Published: September 2022

Проведено компьютерное моделирование деформационного воздействия при прессовании по сечению трубы из титанового сплава Grade 9. Рассчитаны в рамках компьютерной модели усилия, развиваемые прессовым инструментом в процессе получения трубы, при пиковой нагрузке и на установившейся стадии. Показано, что они сопоставимы с экспериментальными значениями, полученными в производственных условиях. Проведена оценка адекватности моделирования на основании сравнительного анализа эволюции структуры, текстуры, физических и механических свойств по сечению полученной горячепрессованной трубы.
Влияние термомеханической обработки на структуру и механические свойства трубной стали 38Г2Ф
Authors: Мякотина И. В. , Хотинов В. А. , Черных Е. С. , Коновалов С. С. , Селиванова О. В. , Овсянников А. Б.
Published: September 2022

Изучено влияние режимов проката и условий охлаждения на структуру и механические свойства среднеуглеродистых марганцовистых микролегированных сталей типа 38Г2Ф. Определены критические температуры (Ac1, Ac3), характеристики структурных составляющих - феррита, перлита, бейнита (количество и морфология), а также размеры бывшего аустенитного зерна в трубах разной толщины. Проведены механические испытания на растяжение. Показано, что высокий уровень прочностных характеристик (σ0,2 650 МПа, σв 900 МПа) труб с толщиной стенки 16,0 мм обусловлен наличием бейнитной составляющей в структуре. Предложено снизить температуру нагрева трубной заготовки перед прокаткой от 1230 - 1260 °C до 1170 - 1180 °C для получения труб размерами Ø93,2 × 13,0 мм и Ø127 × 16,0 мм с комплексом механических свойств, соответствующим требованиям группы прочности Е.
Межатомные химические взаимодействия в сплавах
Authors: Устиновщиков Ю. И.
Published: September 2022

Проведен анализ результатов электронно-микроскопических исследований некоторых бинарных и трехкомпонентных сплавов. Сделано заключение о том, что химические взаимодействия между атомами в сплавах осуществляются по принципу парного взаимодействия. Показано, что разделение тройного сплава на диффузионные микропары происходит уже в жидком растворе, а при снижении температуры внутри диффузионных микропар каждого типа образуются частицы новой фазы. Предположено, что высокоэнтропийные сплавы, в которых такие диффузионные микропары не могут образоваться вследствие заторможенности диффузии атомов, вероятно, не имеют перспективы использования в промышленности.
Влияние легирования цирконием на структуру и свойства сплавов системы Ti - 40 % Nb
Authors: Попов А. А. , Петров Р. И. , Попов Н. А. , Нарыгина И. В. , Жилякова М. А. , Луговая К. И.
Published: September 2022

Исследованы процессы распада метастабильной β-фазы в закаленных сплавах Ti - 40 % Nb - (5 - 9) % Zr во время старения при 400 и 500 °C. Установлены временные интервалы выделения вторых фаз (α и ω). Проанализировано влияние легирования сплавов цирконием от 5 до 9 % (масс.) на изменение структуры, фазового состава и свойств после закалки и старения. Рассмотрено влияние дополнительной пластической деформации прокаткой после закалки на сдвиг температурных интервалов выделения вторых фаз в исследуемых сплавах при последующем старении.
Влияние термической обработки на механические свойства и микроструктуру перспективной высокопрочной стали
Authors: Майсурадзе М. В. , Юдин Ю. В. , Куклина А. А. , Лебедев Д. И.
Published: September 2022

Исследована опытная высокопрочная сталь 20Х2Г2СНМА, обладающая высокой устойчивостью переохлажденного аустенита к образованию диффузионных продуктов превращения. Проведен дилатометрический анализ фазовых и структурных превращений при непрерывном охлаждении и изотермической выдержке. Установлены температурно-временные диапазоны превращений, построена термокинетическая диаграмма. Определены механические свойства стали после различных режимов термической обработки: отжиг, нормализация, закалка, отпуск, изотермическая и ступенчатая закалка. Показано, что наличие бейнита в исследуемой стали приводит к снижению ударной вязкости независимо от его морфологии и температурного интервала образования.
Análise das intervenções farmacêuticas em unidade de terapia intensiva COVID-19
Authors: SILVA Janine G. , PIMENTEL Alessandra F. , TEIXEIRA Cesar A.
Published: September 2022

Objetivo. Avaliar os dados das intervenções farmacêuticas realizadas em uma unidade de terapia intensiva (UTI) dedicada a COVID-19. Metodologia. Estudo transversal retrospectivo, realizado em UTI dedicada a COVID-19 de um hospital universitário no Rio de Janeiro, durante o período de janeiro a junho de 2021. Foram analisados dados obtidos de intervenções farmacêuticas registradas em formulários de acompanhamento farmacoterapêutico, realizado por uma equipe de farmacêuticos clínicos e residentes, a partir da atuação in loco junto à equipe multiprofissional. A revisão diária da farmacoterapia e avaliação clínica dos pacientes, foi baseada na adaptação do mnemônico FASTHUG-MAIDENS, e as intervenções realizadas compiladas em planilha online do Google Drive. Os problemas relacionados a medicamentos identificados foram categorizados conforme os tipos de erros de medicação envolvidos, e os medicamentos citados classificados segundo o Anatomical Therapeutic Chemical Code (ATC). Foram excluídos da análise os formulários que não continham intervenções registradas. Resultados. Foram acompanhados 223 pacientes, sendo realizadas 1.140 intervenções farmacêuticas, com média de 5,1 intervenções por paciente e taxa de aceitação de 85,2%. Entre os problemas relacionados à medicamentos, categorizados como erros de medicação, os que apresentaram maior frequência de intervenções foram omissões de doses ou medicamentos (357), prescrições inadequadas (169) e doses incorretas (168). Entre as classes de medicamentos mais frequentemente envolvidas nas intervenções, aparelho digestivo e metabolismo (243) e sistema nervoso (221) obtiveram o maior número de recomendações registradas. Em relação aos outros tipos de erros de medicação registrados (161), 91 intervenções foram relacionadas à rupturas e variabilidade no estoque, como reflexo do desabastecimento de medicamentos causado pela COVID-19. Conclusão. O farmacêutico, enquanto parte da equipe multiprofissional, otimiza o acompanhamento farmacoterapêutico e auxilia na identificação e prevenção de problemas relacionados aos medicamentos. Os dados obtidos, apontam questões farmacoterapêuticas específicas que necessitam de maior atenção durante o acompanhamento realizado no cenário observado, e podem orientar a formulação de ações voltadas à segurança do paciente e protocolos voltados ao uso de medicamentos.
Turkey meat qualities with probiotic usage at the base of bifidobacteria
Authors:   FGBSI “North Caucasian Federal Scientific Agricultural Centre” (FGBSI “North Caucasian FSAC), Mikhailovsk city, Stavropol region, Russia, Vladimir A. Pogodaev , Sergey V. Tsebro ,   2 PF “Cebro Serguey Vasiliyevich”, “Obilnoye” village, Stavropol region, Russia
Published: September 2022

Effect of different regimes of probiotic usage at the base of bifidobacteria Bifidobacterium bifidum on turkey meat qualities has been considered in the paper. Young poultry being raised with these preparations usage has good slaughter and meat qualities, has better carcass morphological composition and high meat-bone and muscle-bone indices.
Migración, nostalgia y cultura material: una aproximación a partir del caso de la comunidad española de Buenos Aires (1890-1930)
Authors: Cardonetti Stefania
Published: September 2022

El trabajo aborda los usos políticos de la nostalgia dentro de la comunidad española de la ciudad de Buenos Aires analizando dos episodios que tuvieron lugar entre el último lustro del siglo XIX y la década de 1930. A partir del entrecruzamiento entre las emociones, la migración y la cultura material este artículo propone estudiar prácticas y prescripciones emocionales vinculadas a la nostalgia. El trabajo aporta al estudio de las dinámicas emocionales vinculadas a la migración y, especialmente, a las políticas de recreación identitaria e integración a una nueva sociedad.
Reseña bibliográfica de: Peña, S. F.; Cavallero, C.; Del Olmo, I. y Losada, C. (Eds.) (2020). La Reforma Protestante desde el margen. A 500 años del evento banal que revolucionó la cultura de Occidente. Buenos Aires: Sb editorial, 216 pp.
Authors: Mordentti Lautaro Elias
Published: September 2022

Es la reseña de un libro reciente
Reseña bibliográfica de: Tortti, M. C. y González Canosa, M. (Dirs.) (2021). La nueva izquierda en la historia reciente argentina. Debates conceptuales y análisis de experiencias. Rosario: Prohistoria, 316 pp.
Authors: Castillo Brenda Belén , Rodríguez Mauro
Published: September 2022

Es la reseña de un libro publicado recientemente
Resumen de tesis: El sindicalismo clasista en la Argentina del Cordobazo. Estrategias sindicales y radicalización política en el SMATA Córdoba, 1966-1972
Authors: Laufer Rodolfo
Published: September 2022

Es un resumen de una Tesis doctoral
Datos del Anuario
Authors: Anuario Datos
Published: September 2022

Datos del Anuario n° 21
Reseña bibliográfica de: Valdez, C. (2021). Enemigos fueron todos: vigilancia y persecución política en el México posrevolucionario (1924-1946). México: Bonilla Artigas Editores, 327 pp.
Authors: Dip Nicolás
Published: September 2022

Es la reseña de un libro publicado recientemente
Investigation on Potential Biomarkers and Immune-Related Mechanisms of Ischemic Stroke
Authors: Cao Jing-wei , Tang Zhan-bin , Wang Chun-yan , Wang Mi , Yang Yan-ge , Duan Shu-rong
Published: September 2022

Background: This study aimed to reveal the detailed immune-related mechanisms underlying ischemic stroke (IS) and identify new immune-associated biomarkers for clinical management. Methods: Differentially expressed genes (DEGs) between IS samples and normal controls were identified using the GSE16561 dataset. The feature genes of the immune cells were investigated using the GSE72642 dataset. Weighted correlation network analysis (WGCNA) was performed to reveal module genes, followed by an investigation of common DEGs and a functional enrichment analysis. Potential biomarkers were identified based on hub genes in protein-protein interaction networks and WGCNA. Finally, GSE158312 was used for biomarker verification. Results: In total, 1230 DEGs were identified between the IS samples and normal controls. Seven clinically significant modules were identified using WGCNA. The yellow module genes were positively correlated with polymorphonuclear cells (PMNC), whereas the brown module genes were positively correlated with CD4+ T cells. Eight genes were selected as hub genes. These genes are mainly involved in functions such as the innate immune response. Upregulated TLR2 and ARG1 levels were significantly different between the two groups in the verification dataset. Conclusions: Our findings suggest ARG1 and TLR2 as novel biomarkers for IS. Upregulated TLR2 might play a role in IS development by participating in the innate immune response function.
Association of Early Increase in Body Temperature with Symptomatic Intracranial Hemorrhage and Unfavorable Outcome Following Endovascular Therapy in Patients with Large Vessel Occlusion Stroke
Authors: Chen Yimin , Nguyen Thanh N. , Mofatteh Mohammad , Abdalkader Mohamad , Wellington Jack , Yan Zile , Wu Jiale , Liang Wenjun , Chen Gan , Liang Daiyu , Lin Junxian , Chen Baoxin , Yang Shuiquan
Published: September 2022

Introduction: The aim of this study was to investigate for possible associations between an early increase in body temperature within 24 hours of endovascular therapy (EVT) for large vessel occlusion stroke and the presence of symptomatic intracranial hemorrhage (sICH) and other clinical outcomes. Methods: This was a retrospective study of consecutive patients with large vessel occlusion stroke who were treated with EVT from August 2018 to June 2021. Patients were divided into two groups based on the presence of fever, as defined by a Peak Body Temperature (PBT) of ≥37.3 °C. The presence of sICH and other clinical outcomes were compared between the two groups. Results: The median NIHSS admission score (IQR) was 16.0 (12.0, 21.0), with higher NIHSS scores in the PBT ≥37.3 °C group than in the PBT <37.3 °C group (18 vs 14, respectively; p = 0.002). There were no differences in clinical outcomes at 3 months between patients with PBT <37.3 °C and patients with PBT between 37.3 °C and 38 °C. However, patients with PBT ≥38 °C had an increased risk of sICH (adjusted odds ratio (OR) = 8.8, 95% confidence interval (95% CI): 1.7–46.0; p = 0.01), increased inpatient death or hospice discharge (OR = 10.5, 95% CI: 2.0–53.9; p = 0.005), poorer clinical outcome (OR = 25.6, 95% CI: 5.2–126.8; p < 0.001), and increased 3-month mortality (OR = 6.6, 95% CI: 1.8–24.6; p = 0.01). Conclusions: Elevated PBT (≥38 °C) within 24 hours of EVT was significantly associated with an increased incidence of symptomatic intracranial hemorrhage, discharge to hospice or inpatient death, poorer clinical outcome and 3-month mortality, and with less functional independence. Further large-scale, prospective and multicenter trials are needed to confirm these findings.
Hubungan Paritas Ibu Bersalin dengan Kejadian Perpanjangan Kala 1 Fase Aktif
Authors: Zulaikha Layla Imroatu , Permatasari Dian
Published: September 2022

The maternal mortality rate is mostly caused by prolonged labor as much as 8%, one of which is caused by the extension of the first stage of the active phase. 16.7% maternity mothers experienced an extension of the first stage of the active phase caused by parity factors. The purpose of this study was to determine the relationship between maternal parity and the incidence of prolongation of the active phase.This research design is correlation analytic, based on cross sectional time. The population and sample of this study were all mothers who gave birth in January-May 2022 as many as 35 respondents using saturated sampling technique. The independent variable is maternal parity, while the dependent variable is the incidence of prolongation of the first stage of the active phase. Data obtained using partograph with contingency coefficient statistical test.The results of statistical tests obtained X2count (7.047) > X2table (5.991) with a contingency coefficient of 0.409 so it can be concluded that there is a moderate relationship between maternal parity and the extension of stage 1 of the active phase.For mothers with primiparas, it is expected to routinely carry out antenatal checks so that high risks are detected early during delivery, multiparous mothers minimize the occurrence of extension of the active phase 1 by following the advice of midwives during labor and grandemultipara mothers are advised not to have more children so that there is no risk high rates of pregnancy and childbirth with participation in family planning programs
Hubungan Pengetahuan Ibu dengan Kemampuan Deteksi Dini Tumbuh Kembang Bayi 0 – 12 Bulan di Posyandu Anyeler 5 Desa Jarin Kecamatan Pademawu
Authors: Indriyani Ratna , Apidianti Sari Pratiwi
Published: September 2022

The prevalence of malnutrition in Indonesia is still high compared to neighboring countries, the cause is the quantity and quality of food intake which can be judged from its consumption in terms of quality and diversity. This study aims to determine the relationship between mother's knowledge and the ability to detect early growth and development of children 0-12 months at the Anyelir 5 Posyandu, Jarin Village. This research method uses correlational analysis. The population is the total number of mothers of infants 0 -12 months in the Anyelir 5 Posyandu in Jarin Village as many as 72 people. The sample in this study were 61 mothers with babies 0-12 months. It is expected that health workers need to provide counseling to mothers about good weaning methods, appropriate weaning times and good weaning foods, analysis using Spearman Rank Correlation test obtained rho count value (0.00) < 0.05, where Ha is accepted which means there is The relationship between mother's knowledge and the ability to detect early growth and development of infants 0-12 months at the Anyelir 5 Posyandu, Jarin Village, Pademawu District, Pamekasan Regency in 2012.
Differential expression of CDKN2B-AS1 in amyotrophic lateral sclerosis.
Authors: Mamoor Shahan
Published: September 2022

Neurodegenerative diseases that affect the motor neurons, including amyotrophic lateral sclerosis (ALS), have little treatment options and are generally rapidly fatal (1, 2). We harnessed the power of unbiased, whole transcriptome differential gene expression analysis, utilizing primary patient cells and tissues to discover genes whose expression defines ALS using published data (3, 4). We found significant differential expression of CDKN2B-AS1, encoding CDKN2B antisense RNA 1, in the motor neurons of patients with ALS. CDKN2B-AS1 was also differentially expressed in the induced pluripotent stem cell (iPSC)-derived motor neurons of patients with ALS. CDKN2B-AS1 transcript was present at significantly lower levels in ALS patient motor neurons as compared to control motor neurons. These analyses will begin to define the transcriptional landscape of ALS.
The neural representation of subjective cost-benefit judgments
Authors: Nguyen Minh-Hoang
Published: September 2022

Many human decisions and behaviors in daily life entail a cost-benefit analysis. From selecting what to eat for dinner to determining the career to pursue, we more or less assess the cost and benefit of each choice. Given the frequent occurrences of cost-benefit thinking in our minds, some intriguing questions arise: how do the cost-benefit thinking processes emerge? How does the brain function to generate such thoughts? Although these inquiries have yet to be thoroughly answered, scientists are adding new clues to our knowledge, such as the neural representation of our subjective cost-benefit judgments.
Resume Ekonomi Mikro Syariah_Permintaan dan Penawaran Ekonomi Islam
Authors: Rusli Rezky Kurniati
Published: September 2022

Dalam ilmu ekonomi, permintaan disebut dengan istilah demand yang artinya suatu keinginan konsumen untuk membeli suatu barang pada berbagai tingkat harga selama barang pada waktu tertentu.
Ocean heat uptake efficiency increase since 1970
Authors: Cael B. B.
Published: September 2022

The ocean stores the bulk of anthropogenic heat in the Earth system. The ocean heat uptake efficiency (OHUE) -- the flux of heat into the ocean per degree of global warming -- is therefore a key factor in how much warming will occur in the coming decades. In climate models, OHUE is well-characterised, tending to decrease on centennial timescales; in contrast, OHUE is not well-constrained from Earth observations. Here OHUE and its rate of change are diagnosed from global temperature and ocean heat content records. OHUE increased over the past five decades by 0.19$\pm$0.04 W/m$^2$K, and was on average 0.58$\pm$0.08 W/m$^2$K during this period. This increase is attributed to steepening anthropogenic heat gradients in the ocean, and corresponds to several years' difference in when temperature targets such as 1.5$^\circ$C or 2$^\circ$C are exceeded.
Fade in, fade out: Do shifts in visual perspective predict the consistency of real-world memories?
Authors: Wardell Victoria , Jameson Taylyn , Bontkes Oliver , Le M. Lindy , Duan Tz-yu , St. Jacques Peggy L. , Madan Christopher R , Palombo Daniela
Published: September 2022

Memories of our personal past are not exact accounts of what occurred. Instead, memory reconstructs the past in adaptive–though not always faithful–ways. Using a naturalistic design, here we asked how the visual perspective adopted in the mind’s eye when recalling the past–namely an “own” eyes versus “observer” perspective–relates to the stability of autobiographical memories. We hypothesized that changes in visual perspective over time would predict poorer consistency of memories. Human participants (N=178) rated the phenomenology of and freely recalled self-selected memories of everyday events at two time points (10 weeks apart). Multilevel linear modeling revealed, as expected, that greater shifts in visual perspective over time predicted lower memory consistency, particularly for emotional details. Our results offer insight into the factors that predict the fidelity of memories for everyday events. Moreover, our results may elucidate new metrics that are useful in interpreting eye-witness testimony or experiences relayed in clinical contexts.
Feeling of familiarity with nonfamous faces increases “person misidentification”
Authors: Shimane Daisuke , Miura Hiroshi , Itoh Yuji
Published: September 2022

People sometimes mistakenly identify an unknown person they encountered as another known person. Previous research studies have shed light on this phenomenon and revealed it is a common experience. However, no experimental work clarifies the factors associated with its occurrence. We referred to this less-studied phenomenon as “person misidentification” and examined one of these factors. We specifically focused on the following: 1) establishing experimental procedures to detect person misidentification in a laboratory context and 2) investigating the mechanism of whether the feeling of familiarity with the encountered unknown and nonfamous face contributes to person misidentification. The results indicated that the developed procedure measured 247 person misidentifications by 72 out of 106 participants in all experiments. Moreover, the nonfamous faces with a high feeling of familiarity, manipulated by subliminal mere exposure, were more frequently misidentified as particular famous persons. This indicates that the feeling of familiarity with an encountered face contributes to and induces person misidentification. In addition, the results also demonstrated that the similarity, especially in terms of hairstyle, between the nonfamous face and a misidentified famous person might be related to its occurrence. These results can have rich implications for and expand the well-studied research on face processing.
Setting boundaries: Development of neural and behavioral event cognition in early childhood
Authors: Benear Susan L. , Popal Haroon S , Zheng Yinyuan , Tanriverdi Büsra , Murty Vishnu P. , Perlman Susan B. , Olson Ingrid R. , Newcombe Nora
Published: September 2022

The ongoing stream of sensory experience is so complex and ever-changing that we tend to parse this experience at “event boundaries”, which structures and strengthens memory. Memory processes undergo profound change across early childhood. Whether young children also divide their ongoing processing along event boundaries, and if those boundaries relate to memory, could provide important insight into the development of memory systems. In Study 1, 4-7-year-old children and adults segmented a cartoon, and we tested their memory. Children’s event boundaries were more variable than adults’ and differed in location and consistency of agreement. Older children’s event segmentation was more adult-like than younger children’s, and children who segmented events more like adults had better memory for those events. In Study 2, we asked whether these developmental differences in event segmentation had their roots in distinct neural representations. A separate group of 4-8-year-old children watched the same cartoon while undergoing an fMRI scan. In the right hippocampus, greater pattern dissimilarity across event boundaries compared to within events was evident for both child and adult behavioral boundaries, suggesting children and adults share similar event cognition. However, the boundaries identified by a data-driven Hidden Markov Model found that a different brain region—the left and right angular gyri—aligned only with event boundaries defined by children. Overall, these data suggest that children’s event cognition is reasonably well-developed by age 4 but continues to become more adult-like across early childhood.
The Criterion-Related Validity of Conscientiousness in Personnel Selection: A Meta-Analytic Reality Check
Authors: Watrin Luc , Weihrauch Lucas , Wilhelm Oliver
Published: September 2022

A key finding in personnel selection is the positive correlation between conscientiousness and job performance. Evidence predominantly stems from concurrent validation studies with incumbent samples but is readily generalized to predictive settings with job applicants. This is problematic because the extent to which faking and changes in personality affect the measurement likely vary across samples and study designs. Therefore, we meta-analytically investigated the relation between conscientiousness and job performance, examining the moderating effects of sample type (incumbent vs. applicant) and validation design (concurrent vs. predictive). The overall correlation of conscientiousness and job performance was in line with previous meta-analyses (𝑟̅ = .17, k = 102, n = 23,305). In our analyses, the correlation did not differ across validation designs (concurrent: 𝑟̅ = .18, k = 78, n = 19,132; predictive: 𝑟̅ = .15, k = 24, n = 4,173), sample types (incumbents: 𝑟̅ = .18, k = 92, n = 20,808; applicants: 𝑟̅ = .14, k = 10, n = 2,497), or their interaction. Critically, however, our review revealed that only a small minority of studies (~12%) were conducted with real applicants in predictive designs. Thus, barely a fraction of research is conducted under realistic conditions. Therefore, it remains an open question if self-report measures of conscientiousness retain their predictive validity in applied settings that entail faked responses. We conclude with a call for more multivariate research on the validity of selection procedures in predictive settings with actual applicants.
State Management in Times of Crisis: Perception of the Government's Policy of Counteracting the COVID-19 Pandemic in Poland
Authors: Szostak Maciej , Olszanecka-Marmola Agata
Published: September 2022

The COVID-19 pandemic has brought entirely new challenges to state crisis management. Until then, none of the governments had faced the need to stop almost all social and economic life. The fight against the pandemic required the introduction of numerous restrictions limiting mobility and interpersonal contacts. Initially, people did not widely deny their necessity, but over time parts of society protested increasingly against further restrictions. In this article, we check whether party preferences and socio-demographic features influenced the assessment of the Polish government's actions to counter the pandemic's spread. For this purpose, we develop a 10-item anti-COVID-19 activity (ACA) scale consisting of a general assessment of COVID-19 counteracting activity and evaluation of its various dimensions (e.g., online education, health care system, vaccination system and help for entrepreneurs). The research confirms a significant difference in how government activities are perceived in relation to political preferences and gender. The study participants negatively assessed the anti-COVID policy. Furthermore, men and voters of the Confederation turned out to be particularly unfavorable to the government's actions.
The study of carbon nanomaterials by IR-Fourier spectroscopy, obtained by the action of an ultrasonic field on graphite
Authors: Baitimbetova B.A. , Tolubayev K.S. , Ryabikin Yu.A. , Murzalinov D.O. , Zhautikov B.A. , Dairbekova G.S.
Published: September 2022

In this work, the absorption lines corresponding to nanomaterials (nanotubes, nanofibers, graphene), as well as vibrational spectra in the studied samples of graphene structures obtained by processing an ultrasonic field on an aromatic hydrocarbon and pure graphite, are studied by IR-Fourier spectroscopy. With an increase in time in the studied spectra of ultrasonic treatment on pure graphite, absorption bands are observed in the frequency range of ν= 2967,7 cm-1, 2926,1 cm-1, 2853 cm-1, 1449 cm-1, related to stretching and deformation vibrations of the bond C-H of saturated aromatic hydrocarbons. The spectra of carbonyl (carbon) compounds of the C-C bond are also noted in the regions of the absorption bands: 1449,9 cm-1÷1652,6 cm-1. This means that in the IR spectra, with an increase in the time of sonication, the carbon formations of asymmetric stretching vibrations of C-C bonds increase. In these frequency ranges, the absorption bands corresponding to adsorbed benzene are not observed. With an increase in the processing time of the samples, the absorption band of OH hydroxyl groups is not observed. In the samples under study, numerous aromatic carbon-carbon bonds are observed, due to the collective groups of vibrations of carbon nanomaterials (graphene structures, nanofibers, single-layer and multilayer carbon nanotubes, etc.).
Toxocara cati (zeder, 1800) em felinos selvagens na região serrana de Santa Catarina, Brasil
Authors: Quadros Rosiléia Marinho de , Carneiro Júnior Jary André , Ramos Carlos José Raupp
Published: September 2022

Os animais silvestres hospedam uma ampla gama de parasitas que são agentes de doenças primárias ou oportunistas. O estudo da parasitologia de animais silvestres é essencial, pois esses animais são hospedeiros e reservatórios, influenciando o ecossistema e o ambiente natural e doméstico. De agosto de 2007 a 2012, sete felinos selvagens adultos foram encontrados mortos em rodovias federais e estaduais. Entre eles, havia três Puma concolor (dois machos e uma fêmea), dois Leopardus tigrinus (um macho e uma fêmea) e dois Puma yagouaroundi (dois machos). P. concolor apresentou as maiores taxas (56,35%) de infecção parasitária (111 em 197), seguido por P. yagouaroundi com 22,34% (44 em 197) e L. tigrinus, que apresentou 21,32% (42 em 197). No entanto, quanto ao sexo desses parasitas, 55,84% (110 de 197) de T. cati eram fêmeas e 44,16% (87 de 197) eram machos. A detecção de ascarídeos em felinos selvagens traz contribuições essenciais para a ecologia, relações entre parasitas, presas e predadores. Essas espécies precisam de grandes extensões para seu deslocamento e busca de alimentos e, portanto, representam uma ameaça aos carnívoros domésticos, à saúde humana e, acima de tudo, uma grave ameaça aos felinos ameaçados de extinção como os apresentados neste artigo.
Cetoacidose diabética: Revisão e relato de casos
Authors: Alonso Gabriele , Massola Taynara Buratti , Machado Thais Aparecida , Carrasco Adriano de Oliveira Torres
Published: September 2022

A cetoacidose diabética (CAD) é a complicação mais comum decorrente da diabetes mellitus, onde cerca de 15% dos animais chegam a desenvolver este quadro. É caracterizada pela tríade bioquímica, estando presente hiperglicemia persistente, acidose metabólica e cetose, alterações que podem levar ao óbito do paciente por conta das diversas alterações metabólicas geradas, por conta disto é considerada uma emergência médica. Acomete cães de 5 a 12 anos de idade, sendo mais comum em fêmeas. O objetivo foi relatar dois casos de CAD atendidos na Clínica Escola Veterinária, da Universidade Estadual do Centro-Oeste e realizar uma análise de ambos.
Pengaruh Penerapan Model Pembelajaran Course Review Horay Terhadap Hasil Belajar Biologi Siswa Pada Materi Virus
Authors: Wajdi Muhammad , Firdaus
Published: September 2022

Penelitian ini merupakan penelitian eksperimen semu yang bertujuan untuk mengetahui pengaruh penggunaan model Course review horay terhadap hasil belajar Biologi siswa kelas X MIPA SMAN 2 Makassar pada materi virus dengan desain penelitian “Pretest-Posttest Control Group Desain”. Populasi dalam penelitian ini adalah kelas X MIPA SMAN 2 Makassar yang terdiri dari empat kelas. Sampel penelitian ini sebanyak dua kelas yaitu kelas X MIPA 2 sebagai kelas eksperimen dan kelas X MIPA 3 sebagai kelas control yang dipilih secara purposive sampling . Variabel penelitian terdiri dari variabel bebas yaitu model Course Review Horay sedangkan variabel terikat yaitu hasil belajar siswa. Pengumpulan data dilakukan melalui pemberian pretest dan posttest. Data dianalisis dengan statistik deskriptif dan statistik inferensial dengan bantuan SPSS (Statistical Product and Service Solutions) versi 24. Hasil penelitian menunjukkan bahwa pada nilai rata-rata hasil belajar posttest kelas esperimen 86,15 dan kelas kontrol yaitu 65,25. Pada uji hipotesis melalui Independen Sample T- Test dengan nilai p=0,000< a = 0,05 dengan demikian Model Course Review Horay berpengaruh terhadap hasil belajar siswa Kelas X MIPA SMAN 2 Makassar.