bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perbedaan Hasil Belajar Mata Pelajaran Matematika Siswa Yang Memiliki Gaya Kognitif Field Dependent Dan Field Independent Kelas XI MAN Kota Palangka Raya
Authors: Hamdani Muhammad , Sumarwah Sumarwah 
Published: January 2020

Salah satu yang mempengaruhi hasil belajar adalah kemampuan yang dimiliki siswa. Tiga kemampuan yang harus dikuasai siswa yaitu persepsi, mengingat, dan berpikir. Hal ini berkaitan dengan gaya kognitif siswa, yakni cara khas siswa dalam belajar yang menjadi kebiasaan siswa dalam mengolah informasi, menyimpan informasi bahkan menggunakan informasi yang telah diperoleh untuk melakukan suatu tugas yang diberikan berdasarkan informasi yang telah diperoleh dari lingkungan belajar di sekitarnya. Tujuan penelitian ini untuk mengetahui apakah ada perbedaan hasil belajar matematika antara siswa yang memiliki gaya kognitif Field Dependent (FD) dan Field Independent (FI) kelas XI MAN Kota Palangka Raya.
Pendekatan penelitian yang digunakan adalah pendekatan kuantitatif dengan metode Ex-Post Facto. Penelitian ini dilaksanakan pada tanggal 3 Februari 2018 sampai 3 April 2018. Populasi dalam penelitian ini adalah seluruh siswa kelas XI MIPA MAN Kota Palangka Raya tahun pelajaran 2017/2018 yang terdiri dari 6 kelas. Penelitian ini dilaksanakan pada semua populasi, dengan satu kelas digunakan sebagai uji coba. Tes yang digunakan adalah tes GEFT(Group Embedded Figure Test) dan tes hasil belajar. Tes GEFT merupakan tes yang telah valid dan reliabel, tes ini merupakan tes perseptual yang dikembangkan oleh Witkin. Instrumen yang digunakan dalam penelitian ini adalah soal tes pilihan ganda sebanyak 30 soal, sebelum digunakan soal telah divalidasi dengan uji coba. Dari hasil uji coba diperoleh 22 soal valid dan 8 tidak valid dan perhitungan reliabilitas diperoleh 0,88, sehingga reliabilitas tes hasil belajar sangat tinggi.
Berdasarkan hasil uji normalitas data penelitian diperoleh . Untuk kelompok gaya kognitif Field Dependent (FD), = 0,1443 dan = 0,1672, sedangkan untuk gaya kognitif Field Independent (FI), = 0,1195 dan = 0,147 dan hasil uji homogenitas varians diperoleh (1,1462 dan 1,4891). Berdasarkan hasil uji prasyarat analisis dapat disimpulkan bahwa kedua kelompok datanya berdistribusi normal dan variansnya homogen sehingga dapat dilakukan uji-t. Berdasarkan uji-t diperoleh pada ( dan ), sehingga ditolak diterima yang artinya terdapat perbedaan hasil belajar matematika antara siswa yang memiliki gaya kognitif Field Dependent (FD) dan Field Independent (FI) kelas XI MIPA MAN Kota Palangka Raya.
Analisis Dampak Ekstrakulikuler Terhadap Potensi Diri Siswa Di SMAN 1 Bawang Banjarnegara
Authors: Setiyadi Deni Fajar , Fitriana Siti , Dian Primaningrum 
Published: January 2020

Tujuan dalam penelitian ini adalah untuk mengetahui adanya dampak Ektrakulikuler terhadap potensi diri siswa di SMA N 1 Bawang Banjarnegara. Jenis penelitian ini adalah penelitian kualitatif. Metode yang digunakan adalah deskriptif. Teknik pengumpulan data observasi non partisipan, wawancara semi terstruktur dan dokumentasi. Analisis data yang digunakan yaitu reduksi data, penyajian data dan penarikan kesimpulan.
Dari hasil penelitian menunjukan bahwa dampak ekstrakurikuler terhadap potensi diri siswa, ekstrakurikuler merupakan kegiatan yang memiliki kegiatan tambahan belajar siswa yang mempunyai nilai positif. Ekstrakurikuler dapat di artikan sebagai bentuk nyata dari teori yang di dapat dalam proses pembelajaran yang mengandung beberapa aspek seperti pengembangan kemampuan, aspek sosial, rekreatif dan persiapan karir bagi siswa untuk bisa mengembangkan kemampuan yang belum tersalurkan dengan baik.
Berdasarkan penelitian ini saran yang dapat disampaikan bahwa ektrakurikuler mempunyai dampak yang baik untuk perkembangan diri siswa. ekstrakurikuler menjadikan potensi dari diri siswa lebih berkembangan, ekstrakurikuler juga dapat dijadikan sarana untuk meraih prestasi dan jati diri siswa tersebut.
Faktor Penyebab Kesulitan Membaca Peserta Didik Di SDN-5 Panarung
Authors: Hendri Hendri 
Published: January 2020

Penelitian ini bertujuan untuk mengetahui faktor-faktor apakah yang menjadi penyebab kesulitan membaca pada peserta didik kelas III di SDN-5 Panarung.
Populasi dalam penelitian ini adalah 31 orang peserta didik kelas III SDN-5 Panarung. Instrumen dalam penelitian ini adalah berupa angket. Metode yang digunakan adalah metode deskriptif kuantitatif dan hasil datanya dianalisis dengan menggunakan rumus persentase.
Berdasarkan hasil penelitian pada peserta didik kelas III SDN-5 Panarung Palangka Raya didapat bahwa faktor dominan yang menjadi penyebab kesulitan peserta didik dalam membaca adalah kurang mengenal huruf 54,04%, faktor kedua adalah menghilangkan huruf 23,62%, sedangkan faktor terakhir adalah membaca kata demi kata 22,34%.
Relationship between parasympathetic reactivity and oxidative stress in Polycystic ovary syndrome
Authors: Akhter Ayesha , Ferdousi Sultana , Sultana Shamima , Mostafa Musfika 
Published: January 2020

Background: Polycystic ovary syndrome (PCOS) is a very common reproductive hormone disorder. Altered cardiovagal autonomic modulation and oxidative stress may predispose PCOS patients to increased cardiovascular morbidity.
Objective: To assess the relationship between parasympathetic reactivity and oxidative stress in patients with PCOS.
Methods: This crosssectional study was conducted in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbagh, Dhaka from September 2018 to August 2019 on 35 newly diagnosed obese (BMI ≥25kg/m2) PCOS patients aged 20-35 years. Age and BMI matched 35 apparently healthy women were also enrolled as control. Three noninvasive conventional autonomic function tests, such as heart rate response to deep breathing, standing and the Valsalva maneuver, were used for evaluation of parasympathetic reactivity. For assessment of oxidative stress, plasma malondialdehyde level (oxidant) and plasma catalase level(antioxidant) were measured in all subjects by spectrophotometry. Data were expressed as mean± SD. For statistical analysis Independent sample “t” test, Pearson’s correlation test and multiple regression analysis were done as applicable.
Results: In this study PCOS patients had significantly higher (p<0.01)resting heart rate, systolic and diastolic blood pressure than that of healthy control. But Expiration: Inspiration ratio, Expiration:Inspiration difference and 30:15 ratio during standing were significantly lower (p<0.001, p<0.01 and p<0.05 respectively) in PCOS compared to control. In addition, plasma catalase level was significantly lower (p<0.01)and plasma malondialdehyde level significantly higher (p<0.001) in PCOS in comparison to healthy control. Multiple regression analysis showed plasma catalase as a significant positive predictor (p<0.05) of the Valsalva ratio in PCOS. Also, Valsalva ratio showed significant negative association (p<0.05) with plasma malondialdehyde (p<0.01)in PCOS.
Conclusion: Based on these results it is concluded that impaired parasympathetic reactivity showed inverse relationship with oxidative stress in PCOS.
J Bangladesh Soc Physiol. 2019, December; 14(2): 48-55
A New model for Alloxan-induced diabetes mellitus in rats
Authors: Sheriff Ojulari Lekan , Olayemi Oladeru , Taofeeq Ayinde Olanrewaju , Riskat Kadir Eniola , Ojochebo Dangana Elizabeth , Ibukunoluwa Alade Olusoji 
Published: January 2020

Background: Alloxan is widely used to induce experimental diabetes mellitus (DM) in animals with different grades of disease severity by varying the dose of Alloxan used. This method has however be questioned by recent research work as an appropriate technique for the induction of diabetes.
Objective: To provide a simple, yet concise and reproducible experimental procedure and model for Alloxan-induced DM in rats.
Methods: The study was divided into 2 separate experiments. Experiment 1: Alloxan was administered, into four subgroups each (group 1- 100 mg of Alloxan /kg of rat body weight, group 2- 120 mg/kg, group 3- 150 mg/kg, and group 4- 170 mg/kg); in each subgroup, the dose of Alloxan was administered at different concentrations (20 mg/ml, 10 mg/ml, 5 mg/ml and 4 mg/ml) in groups of 10 rats each. The pre-induction fasting period was also varied between groups. Experiment 2:Following a pre-induction fasting period of 36 hours, animals received 150 mg Alloxan /kg body weight and at a concentration of 20 mg Alloxan/ ml.
Result:Alloxan administered intraperitoneally at 150 mg/kg of rat body weight, at 20 mg/ml and following a pre-induction fast period of 36 hours yielded the most favorably conditions with the least recorded mortality.
Conclusion: From the results of this study, it can be concluded that alloxan is a diabetogenic drug with a strict protocol of use in inducing a predictable DM in rats and as such, this model is a standard and reproducible technique for the induction of DM in experimental rats.
J Bangladesh Soc Physiol. 2019, December; 14(2): 56-62
Relationship between FVC, FEV1, FEV1/ FVC% and oxidative stress in type 2 diabetes mellitus
Authors: Tanni Shomia Farid , Ferdousi Sultana , Islam Md Saiful 
Published: January 2020

Background: Diabetes mellitus causes micro and macrovascular disorder with debilitating effects on many organs including lungs. There is pulmonary impairment in type 2 diabetic patients (T2DM) which is usually characterized by restrictive pattern. Increased oxidative stress is associated with type 2 diabetes which may contribute to microvascular and macrovascular complications.
Objectives:To assess the relationship between oxidative stress and lung function in patients with type 2 diabetes mellitus.
Methods: This cross sectional study was carried out in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbag, Dhaka from September’2018 to August’ 2019. For this study, 35 newly diagnosed type 2 diabetic male patients aged 30-50 years and similar age and BMI 35 apparently healthy subjects were enrolled as control. Forced vital capacity (FVC), Forced expiratory volume in 1st second (FEV1) and FEV1/FVC%were assessed by portable spirometer. For evaluation of oxidative stress, plasma malondialdehyde (MDA) and catalase levels were measured by competitive ELISA technique and spectrophotometry. Statistical analysis was done by unpaired ‘t’ test, chi-square test, pearson correlation test and multiple regression analysis as applicable.
Results: In this study, the mean percentage of predicted value of FVC and FEV1were significantly lower (p<0.001) in T2DM. In addition restrictive pattern of pulmonary function was found in 65.71% and 14.28% in T2DM and healthy control respectively and the difference was statistically significant. The mean plasma catalase was significantly lower (p<0.01) and plasma MDA was significantly higher (p<0.001) in patients. In addition, FVC showed significant negative correlation and significant association with higher MDA level in T2DM. Moreover, FEV1 also showed significant association with MDA in T2DM.
Conclusion: The present study reveals that restrictive pattern of pulmonary impairment is related to oxidative stress in T2DM.
J Bangladesh Soc Physiol. 2019, December; 14(2): 69-76
Evaluation of parathyroid function in adult male patients with transfusion dependent thalassemia
Authors: Urmi SFH , Begum Shelina , Munira Fatema Tuz 
Published: January 2020

Background: In transfusion dependent thalassemic (TDT) patients regular blood transfusion leads to iron overload. This increased iron is deposited in the tissue of various system and causes organ damage. Endocrine dysfunction is very common due to iron deposition into the endocrine glands including parathyroid dysfunction.
Objective: To measure plasma intact parathyroid hormone(iPTH), serum total calcium and inorganic phosphate levels in adult male patients with TDT.
Methods:This cross sectional study was conducted in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University, Dhaka from March 2018 to February 2019. Total 35 TDT male patients aged 18 to 40 year and 35 age matched apparently healthy male subjects were enrolled for this study as control. The TDT patients were selected from the outpatient department of Hematology and Transfusion Medicine. For assessment of parathyroid function serum albumin, plasma iPTH, serum total calcium and inorganic phosphate levels were estimated by colorimetric method using automated analyzer. For statistical analysis, independent sample t test was done.
Results: In this study, plasma iPTH and serum corrected calcium levels were significantly (p < 0.001) lower in patients with TDT than those of healthy control. Again, Serum inorganic phosphate and ALP levels were significantly (p < 0.001) higher in patients with TDT than those of healthy control. Moreover, 2.86% of TDT patients had low iPTH.
Conclusion: From this study, it can be concluded that reduced parathyroid function was associated with TDT.
J Bangladesh Soc Physiol. 2019, December; 14(2): 77-81
Autonomic impairment and oxidative stress: Relationship in PCOS patients
Authors: Mostafa Musfika , Ferdousi Sultana , Sultana Shamima , Akhter Ayesha 
Published: January 2020

Background: Polycystic ovary syndrome (PCOS) is one of the most common, heterogeneous endocrine disorder of reproductive aged women. Association of autonomic impairment and elevated oxidative stress may predispose these patients to increased cardiovascular risks.
Objective: To evaluate the relationship between cardiac autonomic nerve function (CANF) and oxidative stress in patients with PCOS.
Methods: This cross sectional study was conducted in Department of Physiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbag, Dhaka from September, 2018 to August, 2019. For this study, 30 newly diagnosed PCOS patients aged 20-35 years were recruited and similar age, body mass index (BMI) 30 apparently healthy, regularly menstruating women were enrolled as control. CANF was assessed by analyzing time domain measures of Heart Rate Variability (HRV). HRV data were recorded by a digital data acquisition device, Powerlab 8/35 (AD instruments, Australia). For evaluation of oxidative stress, plasma catalase and plasma Malondialdehyde (MDA) levels were measured. Statistical analysis was done by unpaired “t” test and Pearson’s correlation test as applicable.
Results: In this study, resting pulse rate, systolic blood pressure (SBP), diastolic blood pressure (DBP) were significantly higher (p<0.001, p<0.01, p<0.01 respectively) and standard deviation of the RR intervals (SDRR) (p<0.01), mean R-R interval, standard deviation of the difference between successive RR intervals (SDSD), square root of mean squared differences of successive RR intervals (RMSSD), proportion of RR interval with duration >50 ms (pRR50%) were significantly lower (p<0.001) in PCOS than healthy controls. In addition, plasma catalase was significantly lower (p<0.01) and plasma MDA was significantly higher (p<0.001) in PCOS patients compared to controls. On correlation analysis, mean heart rate, SDRR, SDSD, RMSSD and pRR50% showed negative correlation with plasma catalase and plasma MDA (p<0.05) in PCOS patients but these were not significant.
Conclusion: The present study reveals that reduced parasympathetic activity in PCOS patients may be related to oxidative stress.
J Bangladesh Soc Physiol. 2019, December; 14(2): 82-88
Adsorpsi Gas CO2 Menggunakan Kapur Tohor, Arang Aktif Dan Zeolit Pada Kendaraan Bermotor Roda Dua
Authors: Ramli Rifai , Suryanto Andi , Yani Syamsuddin 
Published: January 2020

Pemanasan global yang terjadi akibat emisi gas rumah kaca merupakan salah satu persoalan yang menjadi perhatian dunia secara luas dalam dekade terakhir. Berbagai upaya pengendalian emisi gas CO2 yang menjadi komponen utama gas rumah kaca telah banyak diupayakan dan diteliti, antara lain penggunaan teknologi zero emission dan pengendalian gas CO2 pada sumber emisi. Penelitian ini difokuskan pada upaya pengurangan kandungan CO2 dari gas buang kendaraan bermotor roda dua dengan metode adsorpsi menggunakan 3 jenis adsorben (kapur tohor, arang aktif, dan zeolit), dengan variasi massa adsorben 50 gram, 100 gram, dan 150 gram. Selain itu dilakukan juga pengamatan daya adsorpsi dari campuran ketiga jenis adsorben tersebut dalam berbagai komposisi. Pengukuran emisi dilakukan sebelum dan setelah penggunaan adsorben menggunakan flux 4005 infrared multigas analyser pada menit ke 1, 5, 10, 15 dan 20. Hasil penelitian menunjukkan bahwa adsorpsi maksimal terjadi pada berat 150 gram dan menit ke 10 untuk setiap jenis adsorben. Adsorben yang paling besar daya adsorpsinya adalah kapur tohor yaitu 30,68% kemudian zeolit sebesar 28,94% dan yang paling kecil adalah arang aktif sebesar 27,45%. Komposisi campuran adsorben yang paling besar daya adsorpsinya adalah perbandingan 1 : 1 : 1 (K1Z1A1) dengan daya adsopsi CO2 sebesar 27,61%.
PENERAPAN, PENERAPAN MODEL PEMBELAJARAN COOPERATIVE LEARNING TIPE JIGSAW DALAM MENINGKATKAN HASIL BELAJAR SISWA POKOK BAHASAN MENATAP MASA DEPAN DENGAN OPTIMIS, IKHTIAR DAN TAWAKAL KELAS IXE SMPN 2 KOTA BIMA TAHUN PELAJARAN 2019/2020
Authors: Faridah Faridah 
Published: January 2020

Tujuan penelitian ini adalah untuk menerapkan Model Pembelajaran Cooperative Learning Tipe Jigsaw II dalam meningkatan hasil belajar siswa dengan pokok bahasan Menatap masa depan dengan optimis, ikhtiar dan tawakal kelas IXE SMPN 2 Kota Bima tahun pembelajaran 2019/2020. Penelitian ini adalah penelitian tindakan kelas (PTK) Classroom action research yang dilaksanakan dengan empat (4) tahapan dalam tiap siklus yang meliputi perencanaan, pelaksanaan, observasi/evaluasi dan refleksi. Adapun yang menjadi subyek penelitian adalah siswa kelas IXE SMPN 2 Kota Bima dengan jumlah siswa sebanyak 28 siswa terdiri dari 11 laki-laki dan 17 perempuan. Adapun yang menjadi tolok ukur keberhasilan adalah apabila hasil belajar siswa kelas IXE mampu mencapai nilai KKM yaitu ≥65, dan banyak siswa yang tuntas belajar (Ketuntasan Klasikal) minimal 85% dengan nilai rata-rata kelas minimal 70,0 dan keaktifan siswa minimal mencapai 70%. Hasil penelitian didapat pada siklus I siswa yang tuntas belajar klasikal ada 21 siswa ( 67,86% ) dengan nilai rata- rata kelas 76,92 dan persentase keaktifan siswa mencapai 79% sedangkan pada siklus II siswa yang tuntas belajar klasikal ada 25 siswa ( 89,29% ) dengan nilai rata- rata kelas 80,77 dan persentase keaktifan siswa mencapai 86%, Karena sudah memenuhi indikator keberhasilan yang diharapkan, maka proses penelitian berakhir pada siklus II
Implementasi, Implementasi Model Pembelajaran ATI (aptitude treatment interaction) Untuk Meninggkatkan Hasil Belajar dan Aktivitas Belajar Siswa Materi Geometri Ruang Kelas XII.IPA.1 SMA Negeri 4 Kota Bima Tahun Pelajaran 2019/2020
Authors: Wirahmad Ika Ika , Arifin Zainal 
Published: January 2020

Tujuan penelitian ini adalah mengetahui peningkatan aktivias dan hasil belajar matematika pada materi pokok Geometri Ruang siswa kelas XII.IPA.1 SMA Negeri 4 Kota Bima tahun pelajaran 2019/2020. Penelitian ini merupakan penelitian tindakan kelas (class room action research) yang direncanakan dilakukan dengan beberapa siklus, yang tahapannya terdiri dari perencanaan, pelaksanaan tindakan, observasi/evaluasi dan refleksi . Subjek penelitian ini adalah siswa kelas XII.IPA.1 SMA Negeri 4 Kota Bima dengan jumlah siswa 29 orang yang terdiri dari 16 orang siswi dan 13 orang siswa.
Tehnik pengumpulan data dengan menggunakan lembar observasi, dimana hasil aktifitas siswa minimal berkategori aktif dan aktifitas Guru minimal berkategori baik dan tes hasil belajar, tiap individu minimal ≥70 dengan ketuntasan klasikal minimal 85% untuk mengetahui peningkatan yang terjadi.
. Berdasarkan hasil penelitian, diperoleh nilai rata-rata siswa pada siklus I sebesar 71,27 dengan ketuntasan klasikal 65,51%. Karena pada siklus I belum memenuhi ketuntasan belajar klasikal yaitu 85% dari siswa yang mendapat nilai 70, maka penelitian dilanjutkan ke siklus II. Pada siklus II, nilai rata-rata siswa 80,65 dengan ketuntasan klasikal 89,65% yang artinya ketuntasan belajar klasikal sudah tercapai dan hasil belajar mengalami peningkatan. Sehingga dapat disimpulkan dengan peneranpan model pembelajaran ATI (Aptitude Treatment Interaction) dapat meningkatkan aktvitas dan hasil belajar siswa kelas XII.IPA.1 SMA Negeri 4 Kota Bima tahun pelajaran 2019/2020
Response: Let This Be an Example: Three Remarks on a Thematic Cluster about Climate Change Exemplarity
Authors: Bjørnstad Hall 
Published: January 2020

This thematic section of Culture Unbound brings together five articles which in very different ways invite us to reflect on the importance of examples in the discourse on climate change. At first glance, such an invitation might be surprising, if not puzzling. Anthropogenic climate change is something radically unprecedented, so it would seem counter-intuitive to approach it through the discussion of prior examples. Furthermore, the analytical vocabulary which is already mobilized in the title of the section (exemplarity) and the introduction (exemplification) may seem alien to most readers. Do these terms actually serve as precise conceptual tools in the analysis? Indeed, is there really something like an operative theory of examples? To my mind, the five articles gathered here are very successful in dispelling such an initial reticence. Each piece is rich and thought-provoking on its own terms. Moreover, taken together, these articles help us appreciate the extent to which the use of examples is an unexpected and promising index for mapping how climate change discourse navigates between effect and affect, between illustration and ideal, between facts and values, between science and politics. In so doing, this thematic section also provides tools for better grasping the power of examples as such, which should be of methodological interest for other fields of study.
In what follows, I will briefly comment on three aspects that I not only found particularly intriguing, but which are illuminated differently according to the shifting perspectives of the case studies in the articles. First, the surprising emphasis on the archive in certain articles; second, the position of exemplarity and exemplification between theory and practice; and third, the meaning of the deep desire for potent examples of climate change in the wider society, which will, in closing, bring me back to the title of my response.
Reckoning with Hate: Faithful Routes Away from the Charlottesville Rally
Authors: Hurst Carol 
Published: January 2020

Ripples of both alarm and hope regarding United States race relations, have circled out from Charlottesville, Virginia subsequent to violent demonstrations held on August 11 and 12, 2017. This article tells less well-known stories out of Charlottesville, recounting faith groups’ prayers and vigils through the summer of 2017, and one Christian social work educator’s experience of witness with her faith community during the August 12th rally. The article also highlights several loving and creative responses that individuals, groups, and organizations made on August 12th and in the subsequent year after the rally to assist the injured, address the trauma, and begin to rebuild a sense of safety and normalcy in the community. The unfolding Charlottesville story offers an anti-racist case study of one community’s efforts under extreme conditions to reconcile and heal racist wounds.