bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kendala-Kendala Yang Dihadapi Guru dan Siswa Dalam Proses Pembelajaran Pada Masa Pandemi Covid-19 di SMAN 1 Pulau Banyak Aceh Singkil
Authors: Shahifah Sajjaddyah  , Dra. Elfrida, M.Pd  , Nursamsu, S.Pd, M.Pd  
Published: December 2021

Pandemi covid-19 sangat berpengaruh terhadap semua bidang dalam kehidupan termasuk salah satunya pada bidang pendidikan. Terjadinya pandemi covid-19 membuat pemerintah mengeluarkan kebijakan pembelajaran jarak jauh dengan adanya pembelajaran tersebut maka kendala dalam proses pembelajaran menjadi banyak dikarenakan baru pertama kalinya proses pembelajaran ini di laksanakan. Penelitian ini bertujuan untuk mengetahui kendala-kendala yang dihadapi guru dan siswa dalam proses pembelajaran pada masa pandemi covid-19 dan Untuk mengetahui Seberapa Besar Kendala-Kendala Yang Dihadapi Guru Dan Siswa Dalam Proses Pembelajaran Pada Masa Pandemi Covid-19 di SMAN 1 Pulau Banyak Aceh Singkil. Populasi dan sampel dalam penelitian ini adalah seluruh siswa jurusan IPA SMAN 1 Pulau banyak dan seluruh guru IPA SMAN 1 pulau banyak. dengan teknik sampling purposive diperoleh sampel dengan 3 orang guru dimana 1 guru biologi, 1 guru fisika,1 guru kimia dan 2 kelas IPA sebagai sampel penelitian yaitu kelas 10 ( 27 siswa) dan kelas 11 (24 siswa ). jenis penelitian ini dengan menggunakan deskriptif kualitatif. Instrumen yang digunakan dalam penelitian ini adalah tahap observasi,wawancara,angket dan dokumentasi sedangkan analisis data menggunakan deskriptif persentase.Hasil penelitian kendala yang dihadapi guru dari lima indikator yaitu indikator manajemen waktu bernilai 83,33 %, indikator sarana prasarana 55,55 %, indikator sumber daya manusia bernilai 66,67 %, indikator keterampilan dalam menerapkan pembelajaran bernilai 95,24 % dan indikator proses penilaian bernilai 66,67 %. Sedangkan kendala yang dihadapi siswa dari lima indikator yaitu kendala manajemen waktu 43,13 %, kendala sarana prasarana 56,54 %, kendala sumber daya manusia 52,29 %, kendala keterampilan dalam menerapkan pembelajaran 63,28 % dan kendala proses penilaian 55,88 %. besar kendala yang digadapi guru 73,49 % dan besar kendala yang dihadapi siswa 54,22 %.Jadi dapat disimpulan dari penelitian ini guru dan siswa mengalami kendala dalam proses pembelajaran pada masa pandemi covid-19 terdapat semua indikator dengan nilai persentase yang berbeda-beda
Kata kunci : Kendala, Proses Pembelajaran, Masa Pandemi covid-19
Atividade experimental investigativa e e-book no ensino de ciências do ensino fundamental: uma experiência de estágio supervisionado
Authors: De Souza Adaias da Cruz , Farias de Araújo Josiney , Pinheiro Barbosa Milena , Brito da Silva Júnior Carlos Alberto 
Published: December 2021

Resumo: Este artigo apresenta uma proposta didática pautada numa Sequência de Ensino Investigativa (SEI) em Ciências Físicas, com atividades experimentais investigativas e e-book. A intervenção foi realizada em oito encontros no Estágio Supervisionado II, na busca pela aprendizagem significativa dos discentes e dos problemas enfrentados pelos docentes ao usarem novas estratégias de ensino nas aulas de Ciências. Questionários foram usados como instrumentos de coleta de dados, em 84 discentes do 8º e 9º ano do Ensino Fundamental e 2 professores de Ciências de uma escola pública de Portel-PA. O processo de análise dos resultados foi mediado por um desenho de pesquisa quali-quantitativo. Os resultados mostraram que as atividades de ensino por investigação são raramente utilizadas pelos docentes entrevistados, embora eles reconheçam a importância de diferentes estratégias de ensino para a aprendizagem significativa dos discentes. Além disso, os discentes entrevistados referiram abertura para experimentar diferentes metodologias de ensino no âmbito escolar.Palavras-chave: Atividades experimentais; E-book; Ensino por investigação; Estágio supervisionado. Investigative experimental activity and e-book in science teaching to elementary school: a supervised internship experienceAbstract: This work presents a didactic proposal based on an Investigative Teaching Sequence (ITS) in Physical Sciences, with experimental investigative activities and e-book. The intervention was carried out in eight meetings in Supervised Internship II, in the search for meaningful learning of students and the problems faced by teachers when using new teaching strategies in Science classes. Questionnaires were used as data collection instruments in 84 students from the 8th and 9th grades of elementary school and 2 science teachers at the school in Portel-PA. The process of analyzing was mediated by a quali-quantitative research design. The results showed that research teaching activities are used by the interviewed teachers. But they recognize the importance of different teaching strategies as well as from TSI and TIS for meaningful learning by students. In addition, the interviewed students reported opening to experiment different methodologies in school scope.Keywords: Experimental activities; E-book; Teaching by investigation; Supervised internship.
Therapeutic Modulation of Brain Temperature: Relevance of Hypothermia to Inflammatory Changes following Transient Cerebral Ischemia in Rats
Authors: Islam Nadira , Aftabuddin Mohammad 
Published: December 2021

Background : In stroke, the ischemic crisis activates a series of events, including the inflammatory reactions that are potentiated by reperfusion, eventually leading to neuronal damage. Mild hypothermia has been considered to have a protective effect during ischemic neuronal cell death. The chief aim in this study was to investigate whether changing temperature during and after ischemia could minimize this damage by reducing the inflammatory injury.
Material and Methods: The effect of moderate whole body hypothermia (300 C) on transient focal cerebral ischemia induced inflammatory injury was investigated. Experimental stroke (transient focal cerebral ischemia) was induced by a 2-hour middle cerebral artery occlusion (MCAO) with the use of a suture inserting into the lumen of the internal carotid artery (ICA) in male Wistar rats. Histopathological evaluation was performed 96 h after reperfusion.
Results: MCAO induced inflammatory injury, involving the ipsilateral cortex and basal ganglia with massive infiltration of neutrophils, macrophages and microvascular proliferation, was exhibited in all normothermic rats. However, hypothermic MCAO rats showed minimal inflammatory response.
Conclusion: The present study provides experimental evidence for the beneficial role of mild hypothermia using reversible MCAO in rats. Our results indicate that moderate hypothermia has a significant protective effect on the inflammatory injury induced by transient focal cerebral ischemia. Perhaps, the therapeutic effect was related to a reduction in releasing of cytotoxic products and improvement of the cerebral microcirculation.
Bangladesh Journal of Neuroscience 2013; Vol. 29 (1) : 18-23
Association of Serum Triglycerides in Patients with Ischaemic Stroke Admitted in Hospital with type-2 Diabetes Patients
Authors: Bhowmik Nirmalendu Bikash , Alam Dilruba , Islam Md Rashedul , Habib Rumana , Rahman Aminur , Hassan Zahid , Haque Md Amirul 
Published: December 2021

Background and Aims: Diabetes mellitus and dyslipidemia, in particular triglyceridemia pose independent risk factors of stroke. Hypertriglyceridemia implicated in the pathogenesis of ischemic stroke by imparting endothelial dysfunction, oxidative stress and lowering fibrinolytic activity. This study was aimed to explore risk incurred by blood triglyceride level for ischemic stroke in type 2 diabetic patients.
Materials and Methods: A total number of 80 [50 with acute ischemic stroke and 30 without stroke] type 2 diabetic patients consecutively admitted in the neurology department, during the period of April to September 2012, fulfilling the recruitment criteria were included in the study. Ischemic stroke was confirmed by CT-scan. Informed written consent from the legal attendant of each patient was obtained. Data regarding clinicobiochemical and images studies were retrieved from patient’s record form.
Results: Male to female ratio was 1.2:1 of the study subjects. Mean (±SD) age (yrs) was 61.0±10.6 in patients with ischemic stroke (Group I) and 57.0±12.3 in patients without stroke (Group II). Risk factors like BMI, lifestyle, smoking, alcohol intake did not show any statistical significance with incidence of ischemic stroke. Mean (±SD) triglyceride (mg/ dl) was 241±56 and 217±102 in Group I and Group II respectively (p=0.024). Eighty eight percent patients had triglyceride 150 mg/dl in Group I and 70 percent in Group II. Triglyceride level (mean±SD, mg/dl) was significantly higher (335±101) in overweightobese patients (BMI 25 Kg/m2) compared to those (232±68) with normal body weight (BMI<25 Kg/m2). Triglyceride level did not show statistical difference among patients having habit of smoking or not. Mean (±SD) cholesterol (mg/dl, (±SD) was 197±62 and 165±26 in Group I and Group II respectively (p=0.009). Mean (±SD) LDL-c (mg/dl) was 101±45 and 98±42 in Group I (43.8±34.4) compared to Group II (60.2±15.6) (p=0.017). Patients with atherosclerotic changes had significantly higher triglyceride (mean±SD, mg/dl) level (338±155) compared to those without (228±89) (p=0.047).
Conclusions: Data concluded that hypertriglyceridemia is relatively common among the diabetic patients even in patients with apparently good glycemic control and possibly incur added risk for ischemic stroke in these patients. However, further studies are needed involving optimum number of patients to substantiate this finding and conclusively comment on the issue and to design effective prevention program to reduce the cerebrovascular morbidity and mortality.
Bangladesh Journal of Neuroscience 2013; Vol. 29 (2) : 98-107
PERUBAHAN LETAK SANGGAH PADA MASYARAKAT TRANSMIGRAN BALI DI DESA KONDOANO, KECAMATAN MOWILA, KABUPATEN KONAWE SELATAN
Authors: Warsuma Rusi , Jers La Ode Topo , Hasniah Hasniah 
Published: December 2021

Penelitian ini bertujuan untuk memahami dan mendeskripsikan pengetahuan masyarakat di Desa Kondoano, Kecamatan Mowila, Kabupaten Konawe Selatan mengenai letak Sanggah dan alasan mereka mengubah letak Sanggah. Penelitian yang dilakukan pada bulan Januari 2020 ini menggunakan metode entografi. Data yang diperoleh melalui pengamatan terlibat dan wawancara mendalam dianalisis dengan menggunakan teori Kognitif oleh Goodenough. Data yang diperoleh dianalisis secara deskriptif kualitatif, analisis data dilakukan untuk menyederhanakan data yang diperoleh dalam bentuk yang lebih mudah dibaca dan diinterpretasikan.Hasil penelitian ini menunjukkan bahwa terdapat beberapa pengetahuan yang dimiliki oleh masyarakat mengenai bagaimana letak Sanggah yang baik dan benar, dimana Sanggah merupakan areal yang paling sacral pada satu pekarangan rumah bagi orang Bali. Masyarakat di Desa Kondoano memiliki pengetahuan yang berbeda-beda megenai hal tersebut, yaitu diantaranya: antara mata angin Timur dan Utara, hanya arah Utara saja, tempat yang bersih, tempat yang lebih tinggi dari rumah dan pada bagian depan rumah,. Secara umum Orang Bali memahami arah Timur dan Utara sebagai Hulu dan dijadikan sebagai arah Sembahyang. Sementara itu, alasan masyarkat Bali di Desa Kondoano merubah letak Sanggah mereka dilakukan atas berbagai peetimbangan dan semua yang merubah letak Sanggah adalah mereka yang memiliki rumah di Timur jalan. Adapun beberapa alasannya yaitu : Menganggap semua arah merupakan Hulu, untuk keindahan, mempermudah pembangunan, lokasi tidak boleh dibanguni rumah dan pekarangan rumah lebih rendah di Timur
DARI PETANI KE NELAYAN: PILIHAN RASIONAL ORANG BUNGKU
Authors: Kalsum Kalsum 
Published: December 2021

Penelitian ini bertujuan untuk mengetahui penyebab dan sebagai pilihan rasional masyarakat Desa Waru-Waru dalam memilih mata pencaharian dari petani menjadi nelayan. Penelitian ini menggunakan teori James C. Scott tentang moral ekonomi petani dengan metode etnografi James Spradley. Hasil penelitian menunjukkan masyarakat mengambil sikap disebabkan faktor ekonomi yang belum mencukupi. Apalagi jika dari segi mata pencaharian petani, tanaman yang mereka tanami merupakan jenis tanaman jangka panjang dan sebagian dari mereka belum memiliki lahan untuk berkebun. Hal ini membuat masyarakat lebih memilih nelayan sebagai pekerjaan utama. Perubahan musim juga menjadi bagian faktor penghambat dari berkurangnya penghasilan mereka. Masyarakat tetap melakukan aktivitas melaut seperti menangkap ubur-ubur, memancing menggunakan rawe. Aktivitas masyarakat ketika tidak melaut seperti membersihkan alat tangkapan, berkebun, dan sebagian lainnya memilih mencari pekerjaan lain, bahkan ada yang sekedar berkumpul bersama keluarga dan juga menonjolkan peranan istri membantu suami mencari nafkah, misalnya dengan memanfaatkan pasang surut air laut untuk mencari teripang dan kerang-kerangan, membuat kue dan nasi kuning. Hal tersebut bukan dari paksaan suami. Karena desakan tetapi dari pribadi sang istri sendiri untuk membantu menambah perkenomian keluarganya.
POFILEIGHOO (KAWIN LARI) PADA ADAT PERKAWINAN MASYARAKAT MUNA DI DESA LINDO, KECAMATAN WADAGA KABUPATEN MUNA BARAT
Authors: Agfar Yasmi , Hapsah Wa Ode Sitti , Suraya Rahmat Sewa 
Published: December 2021

Tujuan dalam penelitian ini adalah untuk mengetahui bagaimanakah proses kawin lari (pofileighoo) pada adat perkawinan masyarakat Muna di Desa Lindo? dan bagaimanakah simbol/tanda yang mengisyaratkan kawin lari (pofileighoo) pada adat perkawinan masyarakat Muna di Desa Lindo? Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan proses pofileighoo pada adat perkawinan masyrakat muna di Desa Lindo dan untuk mengetahui symbol/tanda yang mengisaratkan pofileighoo pada adat perkawinan masyarakat Muna di Desa Lindo. Teori yang digunakan adalah teori kebudayaan dan simbol Clifford Greertz. Penelitian ini menggunakan metode kualitatif dimana dilakukan bersama dengan proses pengumpulan data melalui pengamatan dan wawancara. Hasil penelitian ini menunjukan bahwa (1) Proses pofileighoo (kawin lari) ada lima tahapan ; a). hukumu (penerimaan kedua calon mempelai) b). polele (untuk pemberitahuan kepada pihak perempuan) c)dengkoragho adhati (musyawarah adat) d) kafotangkano agama e).kakawi (akad nikah). (2). Adapun symbol atau tanda dalam adat perkawinan pofileighoo di Desa Lindo ada 6 tahapan diantarnya ; a) dogaa doangka foninto bhalano b) dogaa doangka nekalonga c) dogaa doangka weghabu d) dogaa doangka wekaa e) kafena (penghargaan) f) matano kenta.
MODIFIKASI TRADISI KAMOMOOSE PADA MASYARAKAT BONEOGE KECAMATAN LAKUDO KABUPATEN BUTON TENGAH
Authors: Musyarafatul Musyarafatul , Jers La Ode Topo , Suraya Rahmat Sewa 
Published: December 2021

Tujuan dari penelitian ini adalah untuk mengetahui proses pelaksanaan tradisi kamomoose, nilai-nilai yang terkandung dalam tradisi kamomoose serta bentuk-bentuk tradisi kamomoose pada masyarakat Boneoge Kecamatan Lakudo, Kabupaten Buton Tengah. Penelitian ini menggunakan teori Evolusi Sosial (Herbert Spencer). Metode pengumpulan data dalam penelitian ini dilakukan menggunakan penelitian lapangan. Dengan menggunakan teknik pengumpulan data, yakni: pengamatan (observation) dan wawancara (interview). Untuk menjawab permasalahan dilakukan analisis data, teknik analisis data yang digunakan dalam penelitian ini adalah deskriptif kualitatif. Analisis data yang dilakukan sejak pengumpulan data sampai akhir penelitian. Hasil penelitian menunjukan bahwa masyarakat Boneoge masih melaksanakan tradisi kamomoose. Proses pelaksanaan tardisi kamomoose ada dua tahap yaitu tahap persiapan dan pelaksanaan, nilai-nilai yang terkandung dalam tradisi kamomoose berupa nilai spiritual, nilai pendidikan dan nilai estetika dan modifikasi tradisi kamomoose dari uang logam ke kacang tanah, lampu pelita ke lampu listrik, pakaian adat ke pakaian muslimah dan ucapan yang keluar/nazar (limba’anogau) ke pencarian dana masjid atau ajang silaturahmi.
Comparison of Frozen Embryo Transfer Outcomes Between Uterine Infusion of Granulocyte Colony-Stimulating Factor and Growth Hormone Application in Patients With Thin Endometrium: A Retrospective Study
Authors: Jiang Lei , Xu Xin , Cao Ziyu , Yang Ni , Wang Shaoqing , Wang Luning , Xu Xiuhua , Li Qian , Shi Baojun , Hao Guimin 
Published: December 2021

ObjectiveTo investigate the effect of two treatments on the outcome of freeze-thaw embryo transfer for pregnancy assistance in thin endometrium.MethodsA retrospective study was conducted on 66 patients who failed in the first cycle treated in the reproductive medicine center of the Second Hospital of Hebei Medical University from January 2018 to December 2019. Granulocyte colony stimulating factor (G-CSF) was used through cavity infusion in one group (n=25, and growth hormone (GH) was subcutaneously injected in the group (n=41). The clinical data of the two groups were compared, including morphology and thickness of the endometrium, biochemical pregnancy rate, clinical pregnancy rate, implantation rate, miscarriage rate, and live birth rate in each period of the hormone replacement cycle.ResultsThere was no significant difference in age, BMI, AMH, FSH, LH, E2, infertility years, number of transferred embryos, basal endometrium, and thickness of endometrium on the day of P administration before and after treatment (P&gt; 0.05). After treatment, compared to the GH group, the G-CSF group presented higher biochemical pregnancy rate (56% versus 48.8%; P=0.569), clinical pregnancy rate (52% versus 46.3%; P=0.655), implantation rate (34.8% versus 27.5%; P=0.391), and live birth rate (40% versus 31.7%; P=0.493), but the differences were not statistically significant (P &gt; 0.05). On the 5th day of treatment, the endometrial thickness in the G-CSF group was thinner than that in the GH group (4.83 ± 0.85 versus 5.75 ± 1.27; P&lt; 0.05), but it had no correlation with pregnancy outcome (P &gt; 0.05). There was no significant difference in endometrial thickness between the two groups on the 7th, 9th day of treatment and the day of P administration (P &gt; 0.05). On the 5th day of treatment, the proportion of endometrial type A morphology in the GH group was significantly higher than that in the G-CSF group (P &lt; 0.05), while the type B morphology in the G-CSF group was significantly higher than that in the GH group (P&lt; 0.05).ConclusionAlthough G-CSF and GH may not have a role in increasing endometrium, both of them can improve the pregnancy outcomes of patients with thin endometrium in the FET cycle. And the effects of the two treatments were similar.
Numerical Analysis on Thermohydraulic Performance of the Tube Inserted with Rectangular Winglet Vortex Generators
Authors: Li Yicong , Qian Zuoqin , Wang Qiang 
Published: December 2021

The aim of this design was to improve the heat transfer performance significantly due to larger turbulent region and much vortices formed by tube inserted. In this article, the BSL k-ω model was chosen as turbulence model to simulate the thermohydraulic performance of the proposed tubes inserted with rectangular winglet vortex generators (RWVGs) when the Re was set as 5000 to 15,000. The reliability of the simulation results was obtained by comparing with the empirical formulas and experimental results. By means of numerical simulation, the influence mechanism of geometric parameters of RWVGs on thermal-hydraulic performance in tubes was analyzed. And the impact of three configurational parameters on the thermal performance was studied, namely the angle α, the height H and the number N of the RWVGs, respectively. The results revealed that the capacity of heat transfer in tubes with RWVG inserts was obviously larger than that in ordinary circular tube. In addition, it could be seen from the results that both Nu and f increased with the increase of H and N. At the same time, the case of α = 135° showed the greatest enhancement of thermal performance than the case of α = 45° and α = 90°.The PEC achieved the highest value of 1.23 when the height H of RWVG was 0.7 mm, the number N was 20, and angle α was 135°.
OsBIC1 Directly Interacts with OsCRYs to Regulate Leaf Sheath Length through Mediating GA-Responsive Pathway
Authors: Li Cong , Wang Xin , Zhang Liya , Zhang Chunyu , Yu Chunsheng , Zhao Tao , Liu Bin , Li Hongyu , Liu Jun 
Published: December 2021

Cryptochrome 1 and 2 (CRY1 and CRY2) are blue light receptors involved in the regulation of hypocotyl elongation, cotyledon expansion, and flowering time in Arabidopsisthaliana. Two cryptochrome-interacting proteins, Blue-light Inhibitor of Cryptochrome 1 and 2 (BIC1 and BIC2), have been found in Arabidopsis. BIC1 plays critical roles in suppressing the physiological activities of CRY2, which include the blue light-dependent dimerization, phosphorylation, photobody formation, and degradation process, but the functional characterization of BIC protein in other crops has not yet been performed. To investigate the function of BIC protein in rice (Oryza sativa), two homologous genes of Arabidopsis BIC1 and BIC2, namely OsBIC1 and OsBIC2 (OsBICs), were identified. The overexpression of OsBIC1 and OsBIC2 led to increased leaf sheath length, whereas mutations in OsBIC1 displayed shorter leaf sheath in a blue light intensity-dependent manner. OsBIC1 regulated blue light-induced leaf sheath elongation through direct interaction with OsCRY1a, OsCRY1b, and OsCRY2 (OsCRYs). Longitudinal sections of the second leaf sheath demonstrated that OsBIC1 and OsCRYs controlled leaf sheath length by influencing the ratio of epidermal cells with different lengths. RNA-sequencing (RNA-seq) and quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) analysis further proved that OsBIC1 and OsCRYs regulated similar transcriptome changes in regulating Gibberellic Acids (GA)-responsive pathway. Taken together, these results suggested that OsBIC1 and OsCRYs worked together to regulate epidermal cell elongation and control blue light-induced leaf sheath elongation through the GA-responsive pathway.
Desigualdad socioespacial y segregación escolar en la ciudad de Lima
Authors: Murillo F. Javier , Carrillo Sandra 
Published: December 2021

Con esta investigación se pretende profundizar en la relación entre la desigualdad socioespacial y la segregación escolar centrándonos en Lima Metropolitana. Para ello se busca, en primer lugar, estimar la segregación escolar en el nivel de primaria en cada distrito y su relación con su nivel económico, así como la aportación diferencial de
las escuelas estatales y privadas y, en segundo término, describir la variación de la segregación escolar según la distribución socioespacial de tres distritos prototípicos. Para ello se realiza una explotación especial de los datos de la Evaluación Censal de Estudiantes (ECE) del 2018 del Ministerio de Educación y se utilizan el índice de Raíz Cuadrada de Hutchens. Se analizan datos de 113.233 estudiantes de 4º grado de Educación Primaria, distribuidos en 3.859 escuelas situadas en 41 distritos de Lima Metropolitana. Se encontró una fuerte relación entre la segregación socioespacial y la segregación escolar, espacialmente la segregación de los estudiantes más vulnerables, así como el importante peso de la educación privada en esta relación. Pero, también, que la desigualdad socioespacial no determina la segregación, hay distritos que tiene una segregación baja independientemente de sus características socioeconómicas. Todo ello lleva a concluir la necesidad de implementar medidas de política educativa publica de lucha valiente contra la segregación, que combinen marcos regulatorios comunes con intervenciones diferenciadas en distintos territorios en función de sus características. Una de esas medidas debe afectar a la educación privada en diferentes ámbitos.