bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER) DENGAN MEDIA KOTAK MATRIKS TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIKA SISWA KELAS XI IPA SMA NEGERI 1 SELESAI
Authors: Kurnia Agustina , Harleni Silvia , M.Pd Sanimah 
Published: March 2021

Tujuan penelitian ini untuk mengetahui pengaruh model pembelajaran kooperatif tipe NHT (Numbered Heads Together) dengan media kotak matriks terhadap kemampuan pemahaman konsep matematika siswa. Penelitian ini dilakukan di SMA Negeri 1 Selesai Tahun Pelajaran 2019/2020. Jenis penelitian yang digunakan dalam penelitian ini adalah eksperimen semu (quasi experimental). Desain penelitian ini adalah Pretest-Posttest Control Group Design. Sampel yang digunakan dalam penelitian ini adalah kelas XI IPA 3 yang berjumlah 32 siswa sebagai kelas eksperimen dan kelas XI IPA 4 yang berjumlah 30 siswa sebagai kelas kontol. Teknik sampling yang digunakan adalah Simple Random Sampling. Instrumen yang digunakan dalam penelitian ini berupa tes kemampuan pemahaman konsep matematika siswa berbentuk uraian sebanyak 4 soal. Uji prasyarat yang digunakan adalah uji Liliefors untuk menguji normalitas data, sedangkan uji fisher untuk menguji homogenitas data. Berdasarkan hasil uji normalitas diperoleh bahwa kedua populasi berdistribusi normal. Sedangkan hasil uji homogenitas diperoleh bahwa kedua populasi homogen (sama). Berdasarkan hasil penelitian mengungkapkan bahwa model pembelajaran kooperatif tipe NHT (Numbered Head Together) dengan media kotak matriks sangat berpengaruh terhadap kemampuan pemahaman konsep matematika siswa. Hal ini dapat dilihat dari nilai rata-rata kelas eksperimen adalah sebesar 73,63 dan nilai rata-rata kelas kontrol adalah sebesar 50,23. Terdapat pengaruh yang signifikan antara pembelajaran kooperatif tipe NHT terhadap pemahaman konsep matematika siswa yang dapat dilihat dari hasil perhitungan analisis data yang menggunakan uji-t dengan nilai thitung > ttabel (4,499 > 1,671) dengan derajat kebebasan (db) = 60, dengan taraf signifikan 0,05. Dengan demikian Ho ditolak dan Ha diterima, yang artinya rata-rata pemahaman konsep matematika siswa pada kelas eksperimen lebih besar dari rata-rata pemahaman konsep matematika siswa pada kelas kontrol. Hal ini berarti terdapat pengaruh penggunaan model pembelajaran kooperatif tipe NHT ( Numbered Head Together) dengan media kotak matriks terhadap kemampuan pemahaman konsep matematika siswa di kelas XI IPA SMA Negeri 1 Selesai Tahun Pelajaran 2019/2020.
Strange Quark Stars in 4D Einstein–Gauss–Bonnet Gravity
Authors: Banerjee Ayan , Tangphati Takol , Channuie Phongpichit 
Published: March 2021

Abstract
The existence of strange matter in compact stars may give rise to striking outcomes of the various physical phenomena. As an alternative to neutron stars, a new class of compact stars called strange stars should exist if the strange matter hypothesis is true. In this paper, we investigate the possible construction of strange stars in quark matter phases based on the MIT bag model. We consider scenarios in which strange stars have no crusts. Then we apply two types of equations of state to quantify the mass–radius diagram for static strange star models, performing the numerical calculation of the modified Tolman–Oppenheimer–Volkoff equations in the context of 4D Einstein–Gauss–Bonnet (EGB) gravity. It is worth noting that the GB term gives rise to a nontrivial contribution to the gravitational dynamics in the limit D → 4. However, the claim that the resulting theory is one of pure gravity has been cast in doubt on several grounds. Thus, we begin our discussion by showing the regularized 4D EGB theory has an equivalent action as the novel 4D EGB in a spherically symmetric spacetime. We also study the effects of coupling constant α on the physical properties of the constructed strange stars including the compactness and criterion of adiabatic stability. Finally, we compare our results to those obtained from standard general relativity.
Molybdenum Isotope Dichotomy in Meteorites Caused by s-Process Variability
Authors: Stephan Thomas , Davis Andrew M. 
Published: March 2021

Abstract
Molybdenum isotopes measured in most individual presolar silicon carbide grains are dominated by s-process contributions from the helium intershells of asymptotic giant branch (AGB) stars. The much smaller isotopic variations in molybdenum in meteorites and their components are largely controlled by s-process enrichments or depletions relative to terrestrial composition but lie along two parallel s-process mixing lines separated by what has been suggested to be an r-process contribution. The two mixing lines are populated by carbonaceous-chondrite- and noncarbonaceous-chondrite-related meteorites (CC and NC groups, respectively). We have compared molybdenum isotopic data for presolar grains with those from meteorites and renormalized the meteorite data in a way that is consistent with s-, r-, and p-process contributions observed in presolar SiC grains. The results indicate that (1) there seems to be a fixed ratio between p- and r-process contributions in all data, (2) the dichotomy in molybdenum isotopes between the CC and NC groups can be explained by variations in the isotope makeup of the s-process contribution to the meteoritic samples, (3) this variability is similar to the variations in s-process molybdenum from different AGB stars deduced from presolar grain analyses, and (4) the larger range of isotopic compositions found in refractory inclusions is also consistent with s-process isotope variability.
Possible Periodic Dips in the Pulsating Ultraluminous X-Ray Source M51 ULX-7
Authors: Hu Chin-Ping , Ueda Yoshihiro , Enoto Teruaki 
Published: March 2021

Abstract
We report the discovery of possible periodic X-ray dips in a pulsating ultraluminous X-ray source, M51 ULX-7, with archival Chandra observations. With ∼20 days of monitoring in the superorbital descending state, we discovered three dips with separations of ∼2 and ∼8 days via the Bayesian block technique. A phase-dispersion minimization and a

test suggest that the dip is likely recurrent with a period of ∼2 days, consistent with the orbital period of M51 ULX-7. We interpret the dip as an obscuring of the emission from the pulsar by the vertical structure on the stream–disk interaction region or the atmosphere of the companion star. Both interpretations suggest the viewing angle to be ∼60°. Given that the magnetic field of M51 ULX-7 is moderately high, B ∼ 1013 G, a low geometric beaming with

is sufficient to explain the observed flux and the presence of dips. Obscuration of the stellar wind remains an alternative possible origin and further monitoring of the dips will be required.
PERCEPCIÓN DE LA SUSCEPTIBILIDAD SOCIAL ANTE EL CAMBIO CLIMÁTICO EN LA CIUDAD DE PORTOVIEJO
Authors: Guillén Meza Sandy Alexandra , Cárdenas Baque Daniel Alejandro , Mendoza Loor Javier Andrés , Loor Vélez Junior Julio , Lucio Villacreces Luis Fernando 
Published: March 2021

La afectación y adaptación al cambio climático es un fenómeno que agudiza los problemas sociales ya existentes. Por ello en el presente estudio se analizó e identifico la percepción de la susceptibilidad social ante el cambio climático en el cantón Portoviejo de la provincia de Manabí, Ecuador. La evaluación de la percepción se analizó a través de componentes sociales, económicos y ecológicos. Se realizó un estudio cuantitativo, descriptivo y analítico basado en encuestas vía online para recabar información sobre la susceptibilidad por servicios básicos, susceptibilidad por ingresos económicos y susceptibilidad por vivienda. Los resultados arrojaron que la susceptibilidad dio como consecuencia que la población en general se verá afectada por este fenómeno y que el mayor impacto recaerá sobre las familias que son de escasos recursos económicos por la poca capacidad de adaptación y de conocimiento hacia este fenómeno.
ACTIVITY OF THE MINISTER OF INTERNAL AFFAIRS А.A. ZAKREVSKY ON ENSURING EPIDEMIOLOGICAL SAFETY IN THE RUSSIAN EMPIRE
Authors: Байкеева С.Е. , Мишина Е.В. , Проценко Е.Д. 
Published: March 2021

В статье рассматривается система мероприятий, реали-
зованных А.А. Закревским на посту министра внутренних дел Российской импе-
рии по предотвращению эпидемий и стабилизации эпидемиологической ситуа-
ции в стране.
Авторы, исходя из того, что высокая смертность населения Российской
империи в начале XIX в. объясняется распространением инфекционных заболе-
ваний, когда болезни выкашивали население целых населенных пунктов, счи-
тают, что обращение к изучению этой проблематики способствует лучшему
пониманию причин и смысла тех политических и социальных катаклизмов,
которые были связаны, в том числе, и с распространением эпидемий в России
в обозначенный период.
The article discusses the system of measures implemented by A.A. Zakrevsky
as Minister of internal Affairs of the Russian Empire to prevent the spread of cholera
and stabilize the epidemiological situation in the country.
The authors, proceeding from the fact that the high mortality rate of the population
of the Russian Empire at the beginning of the XIX century is explained by the spread of infectious
diseases, when diseases mowed down the population of entire settlements, they
believe that turning to the study of this problem contributes to a better understanding of
the causes and meaning of those political and social cataclysms that were associated,
among other things, with the spread of epidemics in Russia during the indicated period.
THE ROLE OF MASS MEDIA IN FOREIGN COUNTRIES: ANALYSIS AND ACCEPTANCE OF FOREIGN EXPERIENCE
Authors: Ивлиев П.В. 
Published: March 2021

Аннотация. В данной статье рассматривается нормативно-правовая
база, регулирующая деятельность средств массовой информации зарубежных
стран. Затрагиваются острые проблемы взаимодействия СМИ с органами
власти в иностранных государствах.
Поднимаются вопросы взаимодействия частного капитала со средст-
вами массовой информации в других государствах.
Выявляются проблемы взаимодействия органов государственной вла-
сти со СМИ в зарубежных странах и тем самым предлагается учитывать
данный опыт иностранных государств в Российской Федерации.
Annotation. This article examines the legal framework governing the activities of
mass media in foreign countries. The acute problems of interaction between the media
and the authorities in foreign countries are touched upon. The questions of interaction of
private capital with mass media in other states are raised. The problems of interaction of
state authorities with the media in foreign countries are identified, and thus it is proposed
to take into account this experience of foreign states in the Russian Federation.
HOMEOSTATIC MODELING OF DIAGNOSTICS AND MANAGEMENT OF THE RULE-MAKING ACTIVITY AS AN ELEMENT OF LEGAL ENSURING OF FOOD SAFETY
Authors: Махмудова А.С. 
Published: March 2021

Аннотация. В статье представлен авторский подход к диагностике
и управлению нормотворческой деятельности в рамках правового обеспечения
пищевой безопасности, с использованием простой и развернутой моделей
компенсационного гомеостата, которые позволяют выявить противоречия
между нормотворческой деятельностью и другими элементами системного
объекта, и определить возможные режимы взаимодействия между ними.
Это позволит осуществлять диагностику и соответствующее эффективное
управление нормотворческой деятельности в сфере обеспечения пищевой
безопасности, с целью определения основных направлений для его совершен-
ствования.
Annotation. The article presents the author`s approach to diagnostics and management
of the rule-making activity within the framework of legal ensuring of food safety using
a simple and expanded models of a compensational homeostat, which allows to identify of
the contradictions between the rule-making activity and other elements of the system object,
and to define the possible modes of interaction between them. This will make it possible
to carry out, diagnostics and appropriate effective management of the rule-making activity
in the field of ensuring food safety in order to determine the main directions for its improvement.
FROM ANCIENT NATURAL AND SOCIAL VALUES TO THE STATE-LEGAL CIVILIZATION
Authors: Юнусов А.А. , Юнусов М.А. , Ахвердян А.Г. 
Published: March 2021

Аннотация. Право и государственные институты существовали не все-
гда. Чтобы прийти к такому цивилизационному состоянию данные ценности
развивались несколько тысячелетий. Примерно семь тысяч лет тому назад
возникли первые государственные формирования на Ближнем Востоке. Право
приобретало свое современное качественное состояние, опираясь на обычаи,
традиции, морально-этические нормы, естественно-нравственные источни-
ки общества. Позже они стали координироваться и возводиться в ранг рели-
гиозных канонов. После длительного эволюционного развития социочеловече-
ские нормы выражались в праве, законодательстве и других нормативных
правовых актах государства. Таким образом, на смену древних социально-
цивилизационных ценностей пришли современные государственно-правовые
институты.
Annotation. Law and state institutions did not always exist. To reach such a civilizational
state, these values have evolved for several millennia. About seven thousand
years ago, the first state formations arose in the Middle East. The law acquired its modern
qualitative state, relying on customs, traditions, moral and ethical norms, natural and
moral sources of society. Later they began to be coordinated and elevated to the rank of
religious canons. After a long evolutionary development, socio-human norms were expressed
in law, legislation and other regulatory legal acts of the state. So, modern state
and legal institutions have replaced the ancient social and civilizational values.
Serat Pelepah Sagu Sebagai Alternatif Pengganti Serat Sintesis Fiberglass
Authors: Sulaeman Budiawan , Natsir Rakhmawati 
Published: March 2021

Tujuan penelitian ini untuk menganalisis pengaruh ukuran besar diameter serat pelepah sagu terhadap sifat mekanik kekuatan tarik, menganalisis sifat mekanik tarik material komposit yang diperkuat serat pelepah sagu.Berdasarkan hasil penelitian; (1). Larutan NAoH berpengaruh terhadap kuat Tarik specimen, hal ini ditunjukkan pada 2,5% (NAoH terhadap H2O). Nilai kekuatan tariknya 49,486 N/mm2. (2). Serat pelepah sagu kuat tariknya jauh dibawah serat gelas. (48,435 N/mm2< 323 N/mm2). Hal ini disebabkan rongga yang terdapat di serat sintesis lebih rapat dibanding serat alami. (3). Berdasarkan variabel yang diteliti, kekuatan tarik (Ftu) dengan nilai tertinggi terjadi pada komposit (volume 85% matriks : 15% serat) yaitu sebesar 3,12 beban 11824 N. (4). Kekuatan tarik mengalami kenaikan terhadap peningkatan komposisi volume serat. (5). Spesimen uji yang mengalami regangan dan patah pada titik load yaitu pada komposisi volume 85% matriks : 15% serat sebesar 3,12 MPa dengan regangan sebesar 8% dan modulus young yang terjadi sebesar 38,615 MPa.The purpose of this study was to analyze the effect of the size of the sago frond fiber diameter on the mechanical properties of the tensile strength, to analyze the tensile mechanical properties of the composite material reinforced by sago frond fibers. Based on research results; (1) NaOH solution affects the tensile strength of the specimen. This is shown at 2.5% (NaOH to H2O), the tensile strength value is 49.486 N/mm2. (2) Sago frond fiber has a tensile strength far below the glass fiber (48,435 N/mm2 <323 N/mm2). This is because the cavities in synthetic fibers are denser than natural fibers. (3) Based on the variables studied, the tensile strength (Ftu) with the highest value occurs in the composite (85% matrix volume: 15% fiber), which is 3.12 load 11824 N. (4) Tensile strength increases with the increase in fiber volume composition. (5) The test specimens that experienced a strain and fracture at the load point, namely the composition of volume 85% matrix: 15% fiber was 3.12 MPa with a strain of 8% and the modulus young that occurred was 38.615 MPa.
KEPRIBADIAN INTROVERT DALAM FOTOGRAFI EKSPRESI
Authors: Sari Ngesti Limna 
Published: March 2021

Kepribadian manusia merupakan bentuk tingkah laku manusia berdasarkan sikap dan sifatnya. Kepribadian setiap manusia berbeda-beda, hal ini di pengaruhi oleh dua faktor utama yaitu, faktor internal dan eksternal. Carl Gustav Jung adalah seorang pencipta teori psikologi analitis membagi kepribadian manusia berdasarkan sikap jiwanya menjadi dua tipe yaitu introvert dan ekstrovert. Penciptaan dengan judul “Kepribadian Introvert dalam Fotografi Ekspresi” ini membahas mengenai kepribadian introvert pada manusia. Kepribadian introvert merupakan kepribadian manusia yang lebih cenderung fokus dengan dunia yang ada dalam dirinya sendiri dan membatasi dirinya dengan dunia luar sehingga dalam masyarakat umum, muncul penilaian yang kurang tepat. Sehingga muncul keinginan untuk memvisualkan bagaimana sebenarnya ciri-ciri kepribadian introvert dari sudut pandang seorang introvert dan teori mengenai kepribadian introvert. Media yang digunakan untuk penciptaan karya adalah fotografi ekspresi. Fungsi fotografi ekspresi adalah sebagai media ungkapan perasaan dan gagasan seorang fotografer. Proses digital imaging dilakukan dalam penciptaan karya untuk penambahan elemen dan objek pendukung sebagai media penyampai pesan, agar pesan yang ada pada foto bisa sampai kepada penikmat foto. Tujuan penciptaan ini adalah untuk menggambarkan bagaimana kepribadian manusia khususnya introvert dapat divisualisasikan melalui media fotografi ekspresi.Human personality is a form of human behavior based on attitude and nature. The personality of every human being is different, this is influenced by two main factors, namely, internal and external factors. Carl Gustav Jung is a creator of analytical psychological theory dividing human personality based on his soul attitude into two types, namely introvert and extrovert. The creation of the title "Introverted Personality in Expression Photography" discusses introverted personality in humans. Introverted personality is a human personality that is more likely to focus on the world that exists in itself and limit itself to the outside world so that in the general public, an inappropriate assessment appears. So the desire arises to visualize how introverted personality traits actually are from the point of view of an introvert and the theory of introverted personality. The media used for the creation is expression photography. It’s for a medium to express the feelings and ideas of a photographer. The digital imaging process is carried out in the creation of works for the addition of supporting elements and objects as message delivery media, so that the message on the photo can reach photo lovers. The purpose of this creation is to describe how human personality, especially introverts, can be visualized through the media of expression photography.
BERMAIN PERAN (ROLE PLAY) DALAM PEMELAJARAN KETERAMPILAN BERBICARA BAGI PEMELAJAR BIPA TINGKAT PEMULA
Authors: Gustyawan Tofan 
Published: March 2021

Artikel ini ditulis berdasarkan pengalaman praktis dalam merancang bahan ajar BIPA yang sesuai dengan kebutuhan pembelajar BIPA. Kebutuhan pembelajar yang beragam dapat dijadikan sebagai pertimbangan dalam penyusunan bahan ajar BIPA. Kebutuhan pembelajar harus diketahui agar proses pembelajaran bahasa Indonesia dapat terakomodasi. Pada proses pembelajaran memerlukan pengajar yang kreatif menghadirkan konteks Indonesia dalam proses pemahaman bahasa Indonesia. Pengajar BIPA yang kreatif salah satunya adalah pengajar yang mampu mengaplikasikan kemampuan seni dalam proses pemerolehan bahasa sebagai strategi pembelajaran BIPA.This article is written according to practical experience in planning BIPA teaching material which is suitable for BIPA learners' needs. Various learners' needs can be become a consideration in making BIPA teaching material. Learners' need must be known so that Indonesian Language learning process can be accommodated. On learning process is needed a creative teacher whom can bring Indonesian contexts in Indonesian Language comprehension process. One of creative BIPA teachers is a teacher who can apply his art ability in language acquisition process as a strategy in BIPA teaching.
PERANCANGAN KOMIK PERJUANGAN SITI MANGGOPOH PEJUANG PEREMPUAN DARI MINANGKABAU
Authors: Afdhal Vernanda Em 
Published: March 2021

Siti Manggopoh tercatat pernah melakukan perlawanan terhadap kekejaman penjajah Belanda dengan kebijakan-kebijakan ekonomi melalui pajak uang (belasting). Perancangan dilatarbelakangi karena belum adanya media publikasi tentang perjuangan Siti Manggopoh melalui media komik. Komik dianggap efektif dan efesien sebagai media publikasi dan media alternatif untuk mengetahui perjuangan Siti Manggopoh melalui gambar dan tulisan sehingga dengan cepat ditangkap oleh pembaca, seperti berupa nilai-nilai, petunjuk, ilmu pengetahuan, dan lain-lain. Pendekatan perancangan menggunakan analisis SWOT (Strengh, Weakness, Opportunity, Threat). Pengaplikasian media utama berupa comic book dan media pendukung dari komik yaitu berupa poster, pin, gantungan kunci, mini banner, komik saku, flyer, stiker dan pembatas buku. Semua media tersebut merupakan bagian dari proses perancangan komik Siti Manggopoh. Siti Manggopoh was recorded as having carried out a fight against the cruelty of the Dutch colonizers with economic policies through tax money (belasting). The design is motivated because there is no publication media about Siti Manggopoh's struggle through comic media. Comics are considered effective and efficient as a medium of publication and alternative media to find out Siti Manggopoh's struggle through pictures and writings so that they are quickly captured by readers, such as values, guidance, science, and others. The design approach uses SWOT analysis (Strength, Weakness, Opportunity, Threat). The main media application is in the form of comic books and supporting media from comics in the form of posters, pins, key chains, mini banners, pocket comics, flyers, stickers and bookmarks. All of these media are part of the Siti Manggopoh comic design process.
Financial Literacy and Borrowing Practices of School-based Multi-purpose Cooperative Members in Bacolod City
Authors: Perez Christian James T. , Lopez Alma B. 
Published: March 2021

Financial literacy is the possession of knowledge and a basic understanding of personal financial matters in terms of borrowing, saving, and investment effectively for a lifetime financial security. Its concept plays an essential role, especially to those who engage in borrowings. This study aimed to assess the level of financial literacy and borrowing practices of school-based multi-purpose cooperative members in terms of employment designation, amount of capital stock, and the number of dependents. Specifically, it determined if there is a significant difference in the level of financial literacy and borrowing practices of multi-purpose cooperative members when grouped according to the aforementioned variables.