bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of SAVI Learning Model with the Task of Observation of Video on Science Learning in Producing Analytical Thinking and Critical Thinking Abilities
Authors: Ahmad Deni Nasir
Published: February 2021

The aim of the researcher is to find out how much change in learning outcomes (analytical thinking and critical thinking skills) by using the SAVI learning model with the assignment learning method using the learning media of science learning video recordings that have been prepared by the researcher. The method used in this research is quantitative research with quasi-experimental research methods in managing research data using the t-test and to see if there is a linear relationship, the researcher tests the hypothetical pre-test before testing the hypothesis or t-test. The results of the study were that there was no indirect relationship between the SAVI learning model and the science learning video observation task on analytical thinking skills and there was a relationship between the SAVI learning model and the science learning video observation task on critical thinking skills. It can be concluded that the Somatic, Audiotorist, Visual and Intelligence (SAVI) learning model can improve and help develop critical thinking skills while improving and developing analytical thinking skills requires learning stages that emphasize an initial or previous learning experience in learning when using the model SAVI learning
LEGALIZACIJA PARTIZANA U SRBIJI 1941‒1942.
Authors: Dević Nemanja
Published: February 2021

Slom ustanka u Srbiji u jesen 1941. otvorio je i pitanje
sudbine njegovih učesnika koji su u prethodnom periodu uzeli učešća u aktivnostima protiv nemačkih snaga i srpskih vlasti pod okupacijom. Manji deo pripadnika partizanskih odreda odstupio je sa Vrhovnim štabom u Sandžak, dok je onima koji su ostali u nekadašnjim žarištima ustanka predstojala teška borba za
opstanak na terenu. Dok su aktivnosti partizana koji su produžili gerilsku borbu
ili po raspuštanju svojih odreda bili uhapšeni i odvedeni u logore detaljno rekonstruisane, pitanje onih koji su tada položili oružje ostalo je u senci istorijskih
istraživanja. U istoriografiji se pod pojmom „legalizacija“ 1941. podrazumeva
prelazak dela vojno-četničkih odreda u okvire vojnih struktura Srpske vlade pod
okupacijom. Povratak primarnim istorijskim izvorima, pre svega arhivskoj građi,
ali i pojedinim memoarskim zapisima ukazuje nam da se i jedan deo partizana i
komunista na sličan način legalizovao pri kolaboracionističkim formacijama.
Njihova legalizacija imala je nešto drugačije karakteristike. Opšta pojava na
prelazu 1941/1942. bila je i njihovo privremeno sklanjanje i prelazak u jedinice
JVuO. U ovom radu analiziramo karakteristike tog procesa.
VOJSKA JUGOSLAVIJE U DOGAĐAJIMA 5. OKTOBRA 2000.
Authors: Dimitrijević Bojan
Published: February 2021

Članak daje pregled aktivnosti Vojske Jugoslavije u događajima oko saveznih izbora 24. septembra 2000, posebno u Crnoj Gori. Potom razmatra pripreme za eventualnu intervenciju i reakciju na širi narodni bunt koji je 5. oktobra 2000. doveo do smene režima Slobodana Miloševića, a zatim prihvatanja novog predsednika Vojislava Koštunice. Iako je izgledalo da će se i u ovoj krizi vojska poslužiti specijalnim, oklopnim i inžinjerijskim snagama radi intervencije (protiv sopstvenih građana), do toga nije došlo. Dokumenta govore da su pripreme vršene i da su samo masovnost opozicionog pokreta i sveopšte nezadovoljstvo stanjem u Srbiji uticali da ne dođe do oružane intervencije. Smirivanje političke situacije i ostanak istovetne komandne garniture na čelu vojske doveo je do pada tenzija. Članak je zasnovan na originalnim dokumentima Vojske Jugoslavije koje je Generalštab Vojske Srbije i Crne Gore dostavio 2003. na traženje tadašnjeg ministra odbrane Borisa Tadića, kao i na zapisnicima sa kolegijuma načelnika Generalštaba Vojske Jugoslavije koji su oslobođeni tajnosti 2006. godine odlukom tadašnjeg načelnika Generalštaba general-potpukovnika Zdravka Ponoša.
POSLEDICE PANDEMIJE ŠPANSKE GROZNICE U VALJEVSKOM SREZU 1918‒1919.
Authors: Krivošejev Vladimir
Published: February 2021

Zahvatajući skoro celu planetu, pandemija španske groznice 1918/19. godine nije zaobišla ni stanovništvo okupirane Srbije, ni vojnike na Solunskom frontu. Eskalirala je neposredno po proboju fronta, a vrhunac je dostigla u trenucima euforije zbog oslobođenja. Cilj ovoga rada jeste da ukaže na mogući put dolaska i hronologiju razvoja epidemije u Valjevskom srezu, kao i na broj žrtava koje je ona tu odnela. Rezultati analize crkvenih knjiga umrlih, i to na skoro stopostotnom uzorku, ukazuju da je masovno umiranje od posledica epidemije otpočelo tokom druge polovine oktobra u ravničarskim delovima sreza, ali da je tu mortalni udar bio relativno slab. Odatle se epidemija širila na udaljenija i nepristupačnija brdsko-planinska sela, gde je smrtnost bila veoma visoka, u pojedinim naseljima umrlo je više od 9% stanovništva. Glavni mortalni udar epidemije je trajao do pred kraj 1918. godine, a posle toga se u naseljima gde je prethodno smrtnost bila veća uočavaju slabije posledice u odnosu na naselja gde je bila manja.
SAVREMENA NACIONALNA ISTORIJA U BOŠNJAČKIM UDŽBENICIMA ZA OSNOVNU I SREDNJE ŠKOLE
Authors: Vasić Dragiša D.
Published: February 2021

Udžbenici istorije u bošnjačkom obrazovnom sistemu u Bosni i Hercegovini praćeni su kritikama koje se uveliko razlikuju po polazištima, metodologiji i zaključcima. U ovom članku se razrješava dilema o bošnjačkom ili bosanskohercegovačkom karakteru sadržaja savremene nacionalne istorije u važećim udžbenicima i njihovoj dopuni za osnovnu i srednje škole. Takođe, u njima se uočavaju i razmatraju glavni motiv i suštinske odlike (pseudonaučna, viktimološka i srbofobična) interpretacije zbivanja, pojava i procesa 20. vijeka.
Relationship Between Whole Blood Viscosity and Lower Extremity Peripheral Artery Disease Severity
Authors: YENERÇAĞ Mustafa , ARSLAN Uğur , ÇOKSEVİM Metin , DERELİ Seçkin , DOĞDUŞ Mustafa , ERDOĞAN Güney
Published: February 2021

Aim: Increased blood viscosity (BV) has good correlaton with lower extremity peripheral artery disease (LEAD). However, the relationship between BV and peripheral arterial disease (PAD) severity has not been studied adequately so far. The aim of the present study was to assess the relationship between whole blood viscosity (WBV) and LEAD severity. Methods: The study included 240 consecutive patients with suspected PAD who had lower extremity peripheral angiography between March 2016 and March 2020. A Transatlantic İntersociety Consensus II (TASC II) A-B lesion was defined as simple LEAD, and a TASC II C-D lesion was defined as prevalent and complex LEAD. Symptom severity of all patients were categorized from 0 to 6 according to Rutherford classification. WBV was assessed using a validated calculation formula derived from hematocrit and total plasma protein levels, both at low (LSR) and high (HSR) shear rate. Results: TASC II C-D group presented significantly higher WBV values both at LSR (40.2 ± 9.5 vs. 46.5 ± 13.2; p < 0.001) and HSR (15.9 ± 0.5 vs. 16.5 ± 0,7; p < 0.001). In ROC analysis, a cut-off value of 16.1 WBV at HSR had 73.4% sensitivity and 68.0% specificity for predicting TASC II C-D (AUC: 76.2%, p < 0.001) and a cut-off value of 42.9 WBV at LSR had 73.4% sensitivity and 66.6% specificity for predicting TASC II C-D (AUC: 74.2%, p < 0.001). In multivariate analysis, both high WBV at LSR (OR: 2.121, 95% CI: 1.079 – 3.164, p < 0.001) and high WBV at HSR (OR: 2.737, 95% CI: 1.671 – 4.483, p < 0.001) were independent predictors for TASC II C-D. There was a significant positive correlation between WBV at LSR and Rutherford symptom category (0-6) (r = 0.412, p <0.001) and WBV at HSR and Rutherford symptom category (0-6) (r = 0.402, p <0.001). Conclusion: Our data suggests that; increased WBV values may be associated with TASC II C-D lesions, which indicated more prevalent and complex LEAD. Also WBV values positively correlated with Rutherford symptom severity.
Faktor yang Mempengaruhi Pemakaian Alat Kontrasepsi Dalam Rahim Pada Pasangan Usia Subur di Kecamatan Peusangan Kabupaten Bireuen
Authors: Fitriani Aida
Published: February 2021

Latar Belakang: Indonesia masih menempati urutan ke-4 dengan jumlah penduduk terbesar di dunia setelah China, India dan Amerika (WHO, 2017). Berdasarkan data Dinas Pemberdayaan Masyarakat Gampong, Perempuan dan Keluarga Berencana Kabupaten Bireuen (2018), jumlah pasangan usia subur (PUS) sebanyak 83.348 PUS dan jumlah peserta KB aktif sebanyak 71.990, sedangkan yang menggunakan Jumlah alat kontrasepsi IUD 1.942 (2,69%) masih rendah jika dibandingkan dengan alat kontrasepsi suntik, pil dan kondom (DPMGPKB, 2020). Tujuan: Untuk menganalisis faktor-faktor yang mempengaruhi penggunaan IUD pada pasangan usia subur. Metode: Penelitian ini merupakan penelitian survei cross sectional dengan jumlah populasi 1.503 orang dan jumlah sampel 103 orang. Analisis data menggunakan analisis univariat, analisis bivariat menggunakan uji chi-square, dan analisis multivariat menggunakan regresi logistik ganda. Hasil: Penggunaan IUD di Kecamatan Peusangan Kabupaten Bireuen dipengaruhi oleh dukungan tenaga kesehatan (p = 0,001) dan jumlah anak (p = 0,028). Variabel yang tidak berpengaruh pendidikan (p = 0,061), pekerjaan (p = 0,903), sikap (p = 0,430), budaya (p = 0,125), dan dukungan suami (p = 0,296). Variabel yang paling berpengaruh terhadap penggunaan IUD adalah dukungan petugas kesehatan dengan OR = 13.448 pasangan usia subur, artinya petugas kesehatan yang memberikan dukungan terhadap penggunaan AKDR memiliki peluang penggunaan IUD 13 kali lebih tinggi dibandingkan pasangan usia subur.
Hubungan Usia, Paritas, Pendidikan Dan Dukungan Keluarga Dengan Kecemasan Ibu Bersalin Kala I Di Klinik Bersalin Esti Husada Semarang
Authors: Sutrisminah Emi , Susiloningtyas Is , Jayanti Murni
Published: February 2021

Latar Belakang: Persalinan dapat menjadi sumber stressor kecemasan. Efek dari kecemasan dalam persalinan dapat memicu keluarnya kadar katekolamin secara berlebih, sehingga dapat berakibat turunnya aliran darah ke rahim dan dapat menyebabkan lamanya persalinan kala I fase aktif. Berdasarkan penelitian menunjukkan sebagian besar (72,7%) ibu bersalin mengalami kecemasan,    mayoritas     dalam     kecemasan     sedang.  Tujuan: Penelitian ini bertujuan untuk mengetahui hubungan usia, paritas, pendidikan, dan dukungan keluarga dengan kecemasan pada ibu bersalin kala I fase aktif di klinik bersalin Esti Husada Semarang. Metode: Desain penelitian ini survei analitik dengan pendekatan cross sectional, populasinya seluruh ibu bersalin yaitu 25 responden, sampelnya seluruh ibu bersalin kala I fase aktif yang memenuhi kriteria inklusi dan eksklusi yaitu berjumlah 22, pengambilan sampel dengan teknik accidental sampling menggunakan kuesioner. Pengukuran tingkat kecemasan menggunakan skala HARS (Hamilton Anxiety Rating Scale). Hasil: Hasil penelitian menunjukkan sebagian besar ibu bersalin memiliki usia tidak beresiko, paritas multigravida, berpendidikan SMA/SMK, mendapatkan dukungan dari keluarga, dan mengalami kecemasan. Ada hubungan usia dengan kecemasan (p<0,05), ada hubungan paritas dengan kecemasan (p<0,05), ada hubungan pendidikan dengan kecemasan (p<0,05), ada hubungan dukungan keluarga dengan kecemasan (p<0,05). Kesimpulan: Ada hubungan antara usia, paritas, pendidikan, dan dukungan keluarga dengan kecemasan ibu bersalin kala I fase aktif.
Presença e/ou ausência da História Quilombola no Currículo: análise dos Livros Didáticos utilizados no Ensino Médio Integrado
Authors: Alves Diego Dos Santos , Melo Beatriz Medeiros de
Published: February 2021

A partir da aprovação da Lei nº 10.639/2003, o ensino da história e cultura africana e afro-brasileira passou a ser obrigatório na Educação Básica. Neste artigo, analisamos o cumprimento dessa prerrogativa legal, identificando a presença/ausência da temática afro-brasileira e africana, na qual a história quilombola se insere, no Ensino Médio Integrado (EMI), ofertado pelo campus do Instituto Federal de Alagoas (Ifal) em Santana do Ipanema. Realizamos tal intento mediante uma investigação de natureza quali-quantitativa, baseada nos métodos de pesquisa bibliográfica e da análise documental. Desse modo, num primeiro momento, revisitamos as políticas públicas educacionais destinadas à visibilização das comunidades quilombolas no âmbito da Educação Básica. Em seguida, analisamos a presença/ausência do debate sobre a questão afro-brasileira e africana em livros de História aprovados no PNLD e disponibilizados ao campus Santana do Ipanema, no período de 2015 a 2020. Apresentamos, ainda, a oferta de um vídeo educativo, que reconstrói as memórias de uma comunidade remanescente em Alagoas, como recurso didático que oportuniza o debate da questão quilombola no currículo do EMI. Concluímos a reflexão apontando para a invisibilidade da temática e propomos a elaboração de materiais didáticos específicos que assegurem a presença da história e cultura quilombola no cotidiano escolar, a partir de um currículo antirracista.
Resenha do Livro "As ruínas da tradição: a Casa da Torre de Garcia d’Ávila, família e propriedade no nordeste colonial", de Ângelo Emílio da Silva Pessoa
Authors: Martins Eduardo
Published: February 2021

Resenha do livro: PESSOA, Ângelo Emílio da Silva. As ruínas da tradição: a Casa da Torre de Garcia d’Ávila, família e propriedade no nordeste colonial. João Pessoa: UFPB, 2017.
Resenha do livro "Zé Dirceu: Memórias", de José Dirceu
Authors: Germinatti Fernando Tadeu
Published: February 2021

Resenha do livro: DIRCEU, José. Zé Dirceu: Memórias. Vol. I. São Paulo: Geração Editorial, 2018.
Foreign Forensic Technologies: The Concept of Relevance
Authors: Nikitina I. E.
Published: February 2021

The article addresses the concept of relevance concerning foreign criminal proceedings, in particular those applying forensic technologies. The author emphasizes that the variety of parties involved in the trial leads to the anticipated pluralism of relevance evaluation. For forensic experts, the relevance assessment is determined by data describing the cognitive object, perceived by the cognizing subject in different object’s reflections.

Foreign criminal systems take great interest in recognizing the importance of the concept of relevance. From examining the crime scene to a court ruling, the understanding of the argumentation process in assessing the relevance of the evidence is a part of the information control procedure that will be used to justify court decisions.
The Process Approach in Forensic Activity as a Formalized Reflection of Its Stages and Algorithms
Authors: Chesnokova E. V.
Published: February 2021

The purpose of the study is to identify the matching and differing features of the concepts of “activity”, “algorithm”, “process”, “procedure”, “process approach” introduced into the theory of forensic examination by national and international standards of quality management systems and general requirements to testing and calibration labs for their subsequent adaptation to expert practice. The issue of the content of the term “process” in the theory of forensic examination, the basic principles and provisions of the process approach under the provisions of the standards: GOST R ISO IEC 17025- 2019 “General requirements for the competence of testing and calibration laboratories” and ISO 9001: 2015 “Quality management systems. Requirements” are addressed. The possibilities and advantages of introducing a process approach into forensic activity and forensic standard operating procedures are analyzed. The author concludes that forensic activity can be presented as a system of processes.
The Issue of Objectification of the Understanding of a Controversial Text within Forensic Linguistics
Authors: Mamaev N. Yu.
Published: February 2021

Based on the example analysis of a controversial text, the article addresses some linguistic phenomena making it challenging to interpert the texts, such as implicit expression of meaning, the incompleteness of the formal sentence structure, the presence of polysemantic components or linguistic components that require particular semanticizing or cognitive understanding. To precisely understand the controversial text and justify the results of linguistic research, it is necessary to overcome the mentioned factors’ negative influence. The meaning content of the analyzed text is twopronged: part of it has a non-explicit expression and involves a level of presuppositions of the text; therefore, the author of the article projected this content plan onto the communicative structure of the text using a description method based on the theory of rhetorical structures. As a result, an implicit content plan of the controversial text and the interpretation of its main controversial semantic components are presented. The analysis actualized several problematic issues related to the objectification of understanding a controversial text, which so far cannot be explicitly resolved. It is primarily the problem of the acceptability of the use of implicit information in a forensic perspective and the problem of eliminating the variability of the semantic understanding of controversial texts, the content of which is not explicit enough.
Assessment and Use Features of the Forensic Experts’ Opinions in the Investigation and Trial of Iatrogenic Crimes
Authors: Tuzlukova M. V.
Published: February 2021

The article analyzes theoretical and practical aspects of assessing and using forensic experts’ opinions in investigation and trial on criminal cases of iatrogenic crimes. Summarized data on the content and stages of the experts’ opinions assessment is given, the features of the conclusions of forensic medical examinations assessment are noted. The absence of complexes of specialized forensic medical research methods of certain varieties of iatrogenic crimes concerning various medical practice areas is considered a factor that impedes the assessment of conclusions by the investigating bodies and court. The author states that evaluating expert opinions by investigators, prosecutors, and courts should not be limited to studying and analyzing only the text of the opinion. A large role is played by specialists’ involvement, interrogations of experts, and other investigative actions, together with the court examining other evidence.
Involvement of a Specialist in Criminal Proceedings: A Defense Party’s Duty, Right or Opportunity
Authors: Bozhchenko A. P. , Nikitin I. M.
Published: February 2021

The article reviews the contradictions between the procedural law and an attorney’s professional duty to use an opinion of a knowledgeable person in the system of criminal procedure protection. The paper provides an analysis of the problems and difficulties arising in the implementation of this right in the criminal process leading to violation of the equality and adversarial principles: the optionality of the defense’s right to involve a specialist; the biased attitude of law enforcement agencies to the expert presented by the defense; the desire to diminish the probative value of the specialist’s conclusion and testimony; the absence of an obligation for an investigator and court in all cases to attach the expert’s opinion to the case. The author emphasizes how important it is for all the participants in the criminal process to understand the expert’s opinion and testimony’s independent evidentiary value. Proposals that contribute to the legal specificity and further development of the specialist institution within the framework of the fundamental principles of competition and equality of the parties are presented.
REDAKSI DAN DAFTAR ISI
Authors: Ilmu Hukum DiH: Jurnal
Published: February 2021

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Investigations on the Impact of Using Elliptic Groynes on the Flow in Open Channels
Authors: AL‏-‏Sarefi Ahmed M. Hussein , Azzubaidi Riyadh Z.
Published: February 2021

This paper presents a numerical simulation of the flow around elliptic groynes by using CFD ‎software. The flow was simulated in a flume with 4m long, 0.4m wide, ‎and 0.175m ‎high ‎‎with a constant bed slope. Moreover, the first Groyne placed at 1m from the flow ‎‎inlet with a ‎constant the Groyne height of 10cm and a 1cm thickness, and the ‎width of Groynes equals ‎7cm‎. A submergence ratio of the elliptic Groynes of 75% was assumed, corresponding to a discharge of ‎0.0057‎m3/sec. The CFD ‎model showed a good ability to simulate the flow ‎around ‎Groynes with ‎ good accuracy. The results of ‎CFD software showed that when using double elliptic Groynes, the bed shear stress is decreased with the ‎increase in the spacing between Groynes, as well as and the best spacing between the double ‎elliptic Groynes is twice of the Groyne width. Moreover, the used number of Groynes has no ‎much ‎impact ‎on velocity and shear ‎stress values.
The Synergic Effects of Mineral Admixtures in Ternary Blended Cement: A Review
Authors: Al-obaidey Shubbar Jawad
Published: February 2021

In the last decades, using mineral admixture in concrete became very necessary to improve concrete properties and reduce CO2 emissions associated with the cement production process. Subsequently, more sustainable concrete can be obtained.  Ternary blended cement containing two different types of mineral admixture can achieve ambitious steps in this trend. In this research, the synergic effects of mineral admixtures in ternary blended cement and its effects on concrete fresh properties, strength, durability, and efficiency factors of mineral admixture in ternary blended cement, were reviewed. The main conclusion reached after reviewing many literature pieces is that the concrete with ternary blended cement, depending on types of mineral admixtures used, replacement percentages by weight of cement, and age of concrete, exhibited superior properties than with no mineral admixtures and corresponding binary blended cement concrete.
PENGARUH PENERAPAN PENDEKATAN PEMBELAJARAN KONTEKSTUAL TERHADAP HASIL BELAJAR MATEMATIKA
Authors: Irviana Ira , Ismail Muhammad Ilyas
Published: February 2021

Penelitian  ini  bertujuan  untuk (1) mengetahui gambaran hasil belajar matematika murid SD Inpres BTN IKIP 1 Makassar; (2) mengetahui gambaran penerapan pendekatan kontekstual dalam pembelajaran matematika di kelas IV SD Inpres BTN IKIP 1 Makassar; (3) mengetahui pengaruh penerapan pendekatan kontekstual terhadap hasil belajar matematika murid di SD Inpres BTN IKIP 1 Makassar. Penelitian ini adalah jenis penelitian quasi eksperimen. Populasi dalam penelitian ini adalah seluruh siswa di SD Inpres BTN IKIP 1 Makassar tahun 2017, sampel penelitian yaitu murid kelas IV SD Inpres BTN IKIP I Makassar. Teknik pengumpulan data melalui tes hasil belajar matematika dan lembar observasi. Teknik analisis data statistik deskriptif dan inferensial. Hasil penelitian menunjukkan : (1) Hasil belajar siswa dalam pembelajaran matematika di kelas IV SD Inpres BTN IKIP 1 Makassar sebelum penerapan pendekatan kontekstual berada pada kategori sangat rendah, setelah penerapan pendekatan kontekstual berada pada kategori sangat tinggi. Sedangkan pada kelompok kontrol berada pada kategori sangat rendah ke kategori rendah; (2) penerapan pendekatan kontekstual pada umumnya terlaksana dengan baik berdasarkan hasil dan pelaksanaannya. (3) penerapan pendekatan kontekstual berpengaruh terhadap hasil belajar pada mata pelajaran matematika siswa kelas IV SD Inpres BTN IKIP 1 Makassar.ABSTRACTThis study aims to (1) find out the picture of mathematics learning results of students of SD Inpres BTN IKIP 1 Makassar; (2) to know the description of the application of contextual approach in mathematics learning in grade IV of SD Inpres BTN IKIP 1 Makassar; (3) determine the effect of applying contextual approach to the results of mathematics learning of students at SD Inpres BTN IKIP 1 Makassar. This research is a type of quasi research experiment. The population in this study was all students at SD Inpres BTN IKIP 1 Makassar in 2017, a sample of research that is grade 4 students of SD Inpres BTN IKIP I Makassar. Data collection techniques through mathematics study results tests and observation sheets. Descriptive and inferential statistical data analysis techniques. The results showed: (1) Students' learning outcomes in mathematics learning in grade IV of SD Inpres BTN IKIP 1 Makassar before the application of contextual approaches are in a very low category after the application of contextual approaches are in a very high category. While in the control group is in a very low category to a low category; (2) The application of contextual approach is generally carried out properly based on the results and implementation. (3) The application of contextual approach affects the learning outcomes in mathematics subjects of grade 4 students of SD Inpres BTN IKIP 1 Makassar.
PENGARUH TEKNIK BIMBINGAN BELAJAR GURU TERHADAP HASIL BELAJAR MATEMATIKA PADA SISWA
Authors: Musbaing Musbaing , Ismail Muhammad Ilyas
Published: February 2021

Tujuan penelitian ini yaitu (1) untuk mengetahui gambaran teknik bimbingan belajar guru. (2) untuk mengetahui gambaran hasil belajar matematika pada siswa, (3) untuk mengetahui pengaruh  teknik bimbingan belajar guru terhadap hasil belajar matematika pada siswa. Penelitian ini merupakan penelitian eksperimen tipe The One Group Pretest-Posttest. Subjek penelitian ini adalah guru dan siswa kelas IV.A SDN Daya 1 Biringkanaya Makassar yang berjumlah 25 orang sebagai responden penelitian ini dilaksanakan pada semester ganjil 2019/2020. Instrumen penelitian yang digunakan dalam penelitian ini adalah tes, observasi, dan dokumentasi. Data yang diperoleh diolah dengan menggunakan analisis statistik deskriptif dan analisis statistik inferensial.  Hasil penelitian ini menunjukkan bahwa: (1) Hasil belajar matematika siswa IV SDN Daya 1 sebelum perlakuan masuk dalam kategori kurang yaitu mean 50,60. Sedangkan hasil belajar setelah perlakuan berupa teknik bimbingan belajar menunjukan adanya peningkatan yaitu mean 80,20 termasuk kategori baik. (2) Data yang diperoleh dapat diketahui bahwa pelaksanaan teknik bimbingan belajar berpengaruh terhadap hasil belajar siswa di kelas IV SD Negeri Daya 1. Hal ini dapat dilihat dari nilai Sig.(2-tailed) < 0,05, diketahui bahwa ada perbedaan yang signifikan antara hasil belajar pretest siswa   dengan  hasil belajar posttest siswa.ABSTRACTThe purpose of this research is (1) to find out the description of teacher tutoring techniques. (2) to find out the picture of mathematics learning results in students, (3) to find out the influence of teacher tutoring techniques on mathematics learning outcomes in students. This research is an experimental research type The One Group Pretest-Posttest. The subjects of this study were teachers and students of grade IV.A SDN Daya 1 Biringkanaya Makassar which numbered 25 people as respondents of this research conducted in the odd semester of 2019/2020. The research instruments used in this research are tests, observations, and documentation. The data obtained is processed using descriptive statistical analysis and inferential statistical analysis.  The results of this study showed that: (1) The results of learning mathematics students iv SDN Daya 1 before treatment fall into the category of less than 50.60. While the results of learning after treatment in the form of tutoring techniques showed an increase of 80.20 mean including good categories. (2) The data obtained can be found that the implementation of tutoring techniques affects the learning outcomes of students in grade IV of SD Negeri Daya 1. This can be seen from the Sig value. (2-tailed) < 0.05, it is known that there is a significant difference between a student's pretest learning outcomes and a student's posttest learning outcomes.
KEMAMPUAN PEMAHAMAN KONSEP ALJABAR DITINJAU DARI METODE PROBLEM SOLVING LEARNING DAN METODE EKSPOSITORI
Authors: Simamora Rianita , Simamora Rianita
Published: February 2021

Penelitian ini membahas tentang kemampuan pemahaman konsep Aljabar yang ditinjau dari dua motode pembelajaran, yaitu antara problem solving learning dengan ekspositori. Penelitian eksperimen ini menggunakan desain the non-equivalent posttest-only control group design karena kedua kelompok yang akan dianalisis berbeda (non-equivalent). Perlakuan yang diberikan kepada kelompok sampel penelitian ini adalah metode pemecahan masalah (problem solving) dan lainnya menggunakan metode ekspositori. SMA Negeri 3 Pematangsiantar kelas XIPA merupakan populasi yang dipilih dalam penelitian ini yang berjumlah 244 orang dan sebagai sampelnya adalah siswa kelas siswa kelas XIPA-6 dan XIPA-7 yang dipilih menggunakan metode cluster random sampling yang telah dinyatakan normal dan homogen. Instrumen yang digunakan adalah tes essay yang berjumlah 10 butir soal yang valid dan reliabel sehingga layak digunakan sebagai instrumen tes. Penelitian ini menggunakan uji-t (selisih dua rataan) untuk mengetahui perbedaan kedua data penelitian. Hasil penelitian ini menunjukkan bahwa ada perbedaan kemampuan pemahaman konsep aljabar yang signifikan jika ditinjau dari metode problem solving learning dan ekspositori sebagaimana ditemukan dari hasil uji statistik penelitian ini. Perbedaan kedua metode juga ditunjukkan oleh persentase ketuntasan belajar siswa dalam menyelesaikan soal pemahaman konsep.
PROSES SCAFFOLDING BERDASARKAN KESALAHAN PESERTA DIDIK DALAM PEMECAHAN MASALAH VOLUME BENDA PUTAR
Authors: Fahcruddin Imam , Sulandra I Made
Published: February 2021

Salah satu aplikasi integral tentu adalah menentukan volume benda putar. Dalam penerapannya, peserta didik harus membutuhkan kemampuan dalam visualisasi, analisis dan deduksi formal yang baik untuk menyelesaikan masalah aplikasi integral tentu pada volume benda putar. Penelitian ini bertujuan untuk mengetahui kesalahan-kesalahan yang ditemukan pada saat peserta didik menyelesaikan masalah volume benda putar serta proses scaffolding yang dilakukan. Jenis penelitian yang digunakan adalah kualitatif dengan subjek penelitian sebanyak enam orang. Teknik pengumpulan data yang digunakan adalah think aloud. Dari hasil penelitian diperoleh beberapa kesalahan yang dialami keenam subjek penelitian dengan kemampuan awal yang berbeda yaitu menyederhanakan fungsi bernilai mutlak. Strategi scaffolding yang diterapkan yaitu memberikan pertanyaan yang mengarahkan untuk mengingat dan menjelaskan definisi fungsi bernilai mutlak. Selain itu, semua subjek penelitian juga mengalami kesalahan dalam memformulasikan volume benda putar. Strategi scaffolding yang diterapkan adalah memberikan pertanyaan untuk mengingatkan terkait konsep-konsep yang digunakan dalam memformulasikan volume benda putar. Kemudian, subjek penelitian dengan kemampuan rendah mengalami kesalahan dalam menentukan daerah yang dibatasi beberapa fungsi dan kesalahan dalam mengidentifikasi komponen-komponen yang digunakan untuk menentukan volume irisan benda putar. Strategi scaffolding yang diterapkan adalah mengajak peserta didik untuk berkontribusi mencari petunjuk–petunjuk dalam menentukan daerah yang dibatasi beberapa fungsi dan menentukan komponen-komponen yang ada dalam irisan benda putar.
KONTEKS PADA SOAL MODEL PISA: KAMUFLASE KAH?
Authors: Wardani Ambarsari Kusuma
Published: February 2021

One of the obstacles in designing the PISA like problems is determining the right context in order to make the questions make sense for students to solve. Therefore, this study aims to determine the profile of the context level in the PISA like problems developed by novice researchers, students of the Mathematics Education Study Program in one of university in Palembang, South Sumatra, who conducted a final assignment research on the topic of developing the PISA like problems. The level of context in this study is defined as a matter of mathematical models that use situations that are either found in the real world that make sense in students' understanding. Context level is divided into three, namely camouflage context, contexts that need solutions, and contexts that require mathematical models. Document observation was carried out to collect the profile data about the PISA model through filling in the checklist sheet and quantitative descriptions. The document observed in this activity was 43 items of PISA like problems from the four research subjects involved. Based on the results, it can be concluded that the PISA like problems developed by research subjects are still dominated by questions with a camouflage context that is equal to 53.49%. As many as 41.86% of the questions designed were already accompanied by contexts that needed solutions. However, the number of contexts requiring mathematical models is only 4.65%.
LINTASAN BELAJAR GEOMETRI TRANSFORMASI DENGAN MENGGUNAKAN KONTEKS KAIN BUNA
Authors: Maifa Talisadika Serrisanti
Published: February 2021

Penelitian bertujuan untuk mendesain sebuah lintasan belajar pada materi Geometri Transfromasi dengan menggunakan konteks Kain Tenun Buna berdasarkan pendekatan Pendidikan Matematika Realistik Indonesia (PMRI). Penelitian ini adalah Design Research yang terdiri dari 3 tahap yaitu Preliminary design, experimental design, dan analysis retrospective. Hasil dari penelitian adalah sebuah lintasan belajar untuk materi Geometri Transformasi, khsusunya materi Refleksi. Lintasan belajar didesain dengan menggunakan 4 aktivitas yaitu: Menggambar Pola Kain tenun, Menciplak Pola Kain tenun, Menemukan Bayangan, dan Menemukan Rumus Refleksi. Hasil penelitian yang diperoleh adalah lintasan belajar ini mampu mendukung siswa untuk memahami konsep Geometri Transformasi.
Pembelajaran Daring Masa Darurat Covid-19 Pada Mahasiswa Pendidikan Matematika
Authors: Arbain Arbain , Farman Farman
Published: February 2021

Penelitian ini merupakan penelitian kualitatif deskriptif dengan menggunakan metode survey secara online. Penelitian dilakukan guna memperoleh gambaran mengenai penerapan pembelajaran daring di Program Studi Pendidikan Matematika Universitas Sembilanbelas November Kolaka saat darurat Covid-19. Data dikumpulkan melalui kuisioner  berupa Google Form dan wawancara melalui telepon. Analisis data dilakukan menggunakan teknik interaktif Miles & Huberman. Hasil penelitian menunjukan bahwa pembelajaran daring mendapat tanggapan postif dan negatif dari mahasiswa. Tanggapan yang bernada positif diperoleh untuk aspek-aspek antara lain ketersediaan perangkat mobile, penyampaian materi, interaksi, kemudahan kuliah daring, manajemen waktu, pengorganisasian kelas, kaktifan, kemandirian dan fleksibilitas. Adapun aspek-aspek yang mendapat tanggapan negatif dari responden adalah tugas, penjelasan tugas serta beban kerja, penguasaan materi, koneksi internet, biaya paket data, dan distraksi.
MODIFIKASI PEMBELAJARAN PENDIDIKAN JASMANI
Authors: Budi Didik Rilastiyo
Published: February 2021

Pembelajaran pendidikan jasmani selama ini identik dengan proses belajar keterampilan gerak dengan menggunakan peralatan olahraga yang sebenarnya. Penggunaan peralatan olahraga yang terstandar, tidak jarang menjadi salah satu hambatan dalam pelasanaan pembelajaran penjas yang efektif dan efisien, hal ini dikarenakan tidak semua sekilah memiliki peralatan dan perlengkapan yang memadai. Merujuk dari permasalahan keterbatasan peralatan yang menyebabkan pembelajaran pendidikan jasmani di sekolah kurang berjalan dengan baik, maka dalam perkembangannya kehadiran inovasi dan modifikasi dalam proses pembelajaran penjas menjadi hal yang penting. Dalam makalah ini akan diulas mengenai pengertian modifikasi dan implementasinya dalam pembelajaran penjas di sekolah
PENCEGAHAN ABORSI DAN RESIKO BAHAYA BAGI KESEHATAN REMAJA
Authors: pratama vivin widya wahyu
Published: February 2021

Aborsi yang sering kita kenal sebagai tindakan yang menggugurkan kandungan pada dasarnya merupakan tindakan yang di larang di indonesia. Aborsi masih menjadi perdebatan bagi kelompok yang mengadopsi. Dan meningkatnya kematian bagi kaum wanita karena adanya aborsi. Aborsi juga bisa dikatakan sebagai salah satu penyebab meningkanya angka kematian.Tentang kesehatan menyatakan bahwa aborsi boleh di lakukan dengan alasan indikasi darurat medis dan kehamilan akibat pemerkosaaan. Aborsi yang salah satunya masalah yang cukup serius,dilihat dari tingginya angka aborsi yang kian meningkat dari tahun ke tahun di Inonesia sendiri. Masalah aborsi yang terjadi di Indonesia tersebut kebanyakan dilakukan oleh remaja. Kehamilan dini pada remaja dapat terjadi karena kurangnya peran orang tua dalam keluarga, dan karena adanya pergaulan bebas.
Kesehatan Gigi Anak Dengan Retardasi Mental Dan Perilaku Orang Tua
Authors: fidhiniyah nur rochmah
Published: February 2021

Retardasi mental adalah suatu kondisi individu dengan kemampuan terbatas yang ditandai dengan indeks IQ kurang dari 70. Anak retardasi mental cenderung memiliki kebersihan mulut yang lebih buruk daripada rekan normalnya. Kesulitan dalam menjaga kebersihan rongga mulut akibat kurangnya kemampuan motorik, kurangnya perhatian dan pengetahuan orang tua menjadi penyebab tingginya indeks karies pada anak retardasi mental. Penelitian ini bertujuan untuk mengetahui hubungan antara pengetahuan orang tua dengan indeks karies anak retardasi mental. Penelitian analitik cross-sectional dilakukan dalam penelitian ini. Sampel penelitian adalah 27 anak usia 8-9 tahun. Pengumpulan data dilakukan dengan menggunakan kuesioner pengetahuan orang tua dan pemeriksaan oral indeks karies anak dicatat menggunakan indeks DMF-T / def-t. Data diuji dengan uji Chi Square. Hasil penelitian menunjukkan rata-rata indeks DMF-T / def-t 6,9 termasuk dalam kategori sangat tinggi. Sekitar 29,63% orang tua memiliki pengetahuan baik (kategori tinggi), 55,5% kategori pengetahuan sedang, dan 14,81% kategori rendah. Hasil penelitian menunjukkan adanya hubungan yang bermakna antara indeks karies pada anak dan pengetahuan orang tua (p = 0,004, p <0,05). Kesimpulan dari penelitian ini adalah ada hubungan yang signifikan antara pengetahuan orang tua dengan indeks karies anak retardasi mental.
On the hit problem for the unstable $\mathscr A$-module $\mathcal P_5 = H^*((K(\mathbb F_2, 1))^{\times 5}, \mathbb F_2)$ and application
Authors: Võ Phúc Đặng
Published: February 2021

Let us consider the prime field of two elements, $\mathbb F_2.$ One of the open problems in Algebraic topology is the hit problem for a module over the mod 2 Steenrod algebra $\mathscr A$. The problem asks a minimal set of generators for the polynomial algebra $\mathcal P_m:=\mathbb F_2[x_1, x_2, \ldots, x_m]$ regarded as a connected unstable $\mathscr A$-module on $m$ variables $x_1, \ldots, x_m,$ each of degree one. The algebra $\mathcal P_m$ is the cohomology with $\mathbb F_2$-coefficients of the product of $m$ copies of the Eilenberg-MacLan complex $K(\mathbb F_2, 1).$ The hit problem has been thoroughly studied for 35 years in a variety of contexts. Furthermore, it is applied in investigating the $m$-th Singer algebraic transfer $Tr^{\mathscr A}_m$ \cite{W.S1}. This transfer is one of the useful tools for describing the Adams $E^{2}$-term, ${\rm Ext}_{\mathscr A}^{m, m+*}(\mathbb F_2, \mathbb F_2) = H^{m, m+*}(\mathscr A, \mathbb F_2).$The aim of this work is to continue our study of the hit problem of five variables. At the same time, this result will be applied to the investigation of the fifth transfer of Singer and the modular representation of the general linear group of rank 5 over $\mathbb F_2.$ More precisely, we extend a result in \cite{D.P3} on the hit problem for $\mathscr A$-module $\mathcal P_5$ in the generic degree $5(2^t-1) + 18.2^t$ with $t\geq 0.$ The result confirms Sum's conjecture \cite{N.S2} for the relation between the minimal sets of $\mathscr A$-generators of the polynomial algebras $\mathcal P_{m-1}$ and $\mathcal P_{m}$ in the case $m=5$ and the above generic degree. As a consequence, we obtain the $\mathscr A$-generators for $\mathcal P_6$ in the generic degree $5(2^{t+5}-1) + 41.2^{t+5}$ for $t \geq 0.$ Moreover, by using our result \cite{D.P3} and a presentation in the $\lambda$-algebra of $Tr_5^{\mathscr A}$, we show that the non-trivial element $h_1e_0 = h_0f_0\in {\rm Ext}_{\mathscr A}^{5, 5+(5(2^0-1) + 18.2^0)}(\mathbb F_2, \mathbb F_2)$ is in the image of the fifth transfer and that $Tr^{\mathscr A}_5$ is an isomorphism in the bidegree $(5, 5+(5(2^0-1) + 18.2^0)).$ In addition, the behavior of $Tr^{\mathscr A}_5$ in the bidegree $(5, 5+(5(2^t-1) + 18.2^t))$ when $t\geq 1$ was also discussed. This method is different from that of Singer in studying the image of the algebraic transfer.
Pengaruh Merokok Bagi Remaja Terhadap Perilaku Sehari-hari
Authors: Maqsyalina Marits
Published: February 2021

Merokok merupakan sebuah aktivitas yang kini banyak di gandrungi oleh para remaja kita. Dahulu kala merokok hanyalah menjadi bagian dari kehidupan orang -orang tua. Tapi kini merokok sudah merambah ke dalam kehidupan anak-anak sekolah mulai dari SMA-SMP dan yang paling parahnya lagi sudah ada sebagian anak SD yang sudah pandai Merokok. Orang-orang yang menjadi perokok aktif mengatakan bahwa merokok itu mengasyikkan dan menyenangkan karena dapat menghilangkan stress. Tetapi dibalik kenikmatan yang dirasakan oleh para perokok tersebut terdapat bahaya yang sangat mematikan bagi dirinya dan kehidupan masa depannya. Apabila merokok telah menjadi sebuah kebiasaan yang dilakukan oleh masyarakat pada umumnya, maka bahaya merokok juga akan mengintai masa depannya. Masa depan perokok akan menjadi suram, lihatlah ketika mereka ketagihan untuk mengkonsumsi sebatang rokok, Jika sudah fatal, maka mereka akan melakukan segala cara untuk dapat menikmati sebatang rokok. Penyakit yang timbul akan tergantung dari kadar zat berbahaya yang terkandung, kurun waktu kebiasaan merokok, dan cara menghisap rokok. Semakin muda seseorang mulai merokok, makin besar risiko orang tersebut mendapat penyakit saat tua.
Uniformly Valid First Approximation Shell Theory of Hybrid Anisotropic Materials
Authors: Chung Samuel W , Ju Hyun-ho
Published: February 2021

The theories in this article implies unique physical characteristics and formulated the governing equations. A uniformly valid shell theory which includes all the terms present in each of the asymptotic shell theories. The first approximation theories derived in this article represent the simplest possible shell theories for the corresponding length scales considered. Although twenty-one elastic coefficients are present in the original formulation of the problem, only six are appear in the first approximation theories.
Experimental Study of The Influence of Fluid Flow Rate on The Risk of Rock Destruction
Authors: Al-Obaidi Sudad H
Published: February 2021

The stresses acting in the vicinity of wells have a significant impact on the flow properties of the reservoir and, as a result, on the flow rate of oil wells. The magnitude of such stresses depends on the deformation properties of the rock and on the oil pressure at the bottom of the well. In this work, an attempt to study the effect of flow fields (formation flow rate, well flow rates) on rocks in near-wellbore zones was performed. For this purpose, the correlation of such indicators as the fluid flow rate and the risk of destruction of the rocks of the productive deposits of one of the gas fields were experimentally studied. The experiments were performed on chosen core samples with quite wide range of flow and volumetric reservoir properties. It was concluded that the rock samples of the productive deposits of the studied formation do not collapse under the influence of pressure gradients corresponding to the design flow rates.
THE USE OF OIL-SOLUBLE POLYMERS TO ENHANCE OIL RECOVERY IN HARD TO RECOVER HYDROCARBONS RESERVES
Authors: WJ Chang , Al-Obaidi Sudad H , AA Patkin
Published: February 2021

Currently, the share of new fields in many places over the world, which are at the initial stage of development, is constantly growing.Fields often have a complex heterogeneous structure with hard-to-recover reserves, therefore, for their effective development, it is necessary to use completely new approaches, including improving existing methodsof enhanced oil recovery.In this work, experimental verification of a new technology using oil-soluble polymers and comparing it with technology based on the use of water-soluble polymers has been performed. In laboratory conditions, a newtechnology for polymer flooding at an early stage of development using oil-soluble polymers was developed and experimentally confirmed. The new technology has made it possible to increase the degree of reservesrecovery by an average of 30% compared to existing methods of enhanced oil recovery and to solve a number of problems arising from the use of water-soluble polymers. Such problems are the freezing of aqueouspolymer solutions in winter and the poor solubility of polymers in formation waters with a high salt content. The use of new technology can also reduce energy costs by 25%.
Vaccination Policy Reactance: Predictors, Consequences, and Countermeasures
Authors: Sprengholz Philipp , Felgendreff Lisa , Böhm Robert , Betsch Cornelia
Published: February 2021

Ending the COVID-19 pandemic will require rapid large-scale uptake of vaccines against the disease. Mandating vaccination is discussed as a suitable strategy to increase uptake. In a series of cross-sectional quota-representative surveys and two preregistered experiments conducted in Germany and the US (total N = 4,629), we investigated (i) correlates of individual preferences for mandatory (vs. voluntary) COVID-19 vaccination policies; (ii) potential detrimental effects of mandatory policies; and (iii) interventions potentially counteracting them. Results indicate that reactance elicited by mandates can cause detrimental effects, such as decreasing the intention to vaccinate against influenza and adhere to COVID-19 related protective measures.
Depression and Anxiety in Pregnancy during COVID-19: A Rapid Review and Meta-Analysis
Authors: Tomfohr-Madsen Lianne , Giesbrecht Gerald , Lebel Catherine , Racine Nicole , Madigan Sheri
Published: February 2021

Objective: The present study rapidly reviewed and meta-analyzed the worldwide prevalence of depression and anxiety among pregnant women during the COVID-19 pandemic. Methods: A systematic search of the literature and meta-analyses were conducted. Results: Fifteen studies with 11,091 participants met inclusion criteria. Depression was assessed in 11 studies, with a pooled prevalence of .265 or 26.5% and anxiety in 12 studies, with a pooled prevalence of .335 or 33.5%. Conclusions: Rates of depression and anxiety during pregnancy are elevated during the pandemic. There is an urgent need to ensure screening and treatment for depression and anxiety during pregnancy.
Autism and fetal androgens: Commentary on Levy et al. (Lancet 2009; 374: 1627-38)
Authors: Voracek Martin
Published: February 2021

Children with autism or high-functioning autism (Asperger syndrome), as well as their unaffected first-degree relatives (siblings, mothers, and fathers), have conspicuously lower (hypermasculinised) 2D:4D than healthy general populations controls. This finding has been independently replicated in by now some ten further reports. All in all, this points to a role of altered sex-hormone profiles, already arising in utero, in the pathways leading to the neurodevelopmental disorder autism.