bluuebunny/crossref_metadata_2025 huggingface dataset:
New Perceptions in the Cardioprotective Effect of Metformin Against Isoproterenol Induced Cardiotoxicity in Male Rats
Authors: Al-Qaisy Yahya ghanim , Arif Inam Sameh , Al-ezzi Muthanna Ibraheem
Published: November 2021

Background and objective: Recent clinical trials have shown that metformin improves clinical cardiovascular outcome in type-2 diabetic patients independently of its insulin-sensitizing effect. This study was sought to evaluate the potential cardioprotective effects of metformin on isoproterenol-induced cardiac stress in diabetic and non-diabetic rats. Materials and Methods: Diabetes was induced by using streptozocin (60 mg/kg, i.p.) while non-diabetic rats received saline. Rats in both experimental groups were then randomized to receive different doses of metformin (75, 150, 300 mg/kg i.p.) for 6 weeks. Cardiac stress was induced by isoproterenol (150 mg/kg i.p.) for two successive days. Specific biomarkers of tissue injury, namely brain natriuretic peptide (BNP), cardiac troponin-T (cTn-T), matrix metalloproteinase (MMP), tissue necrotic factor-α (TNF), were assessed. Data were analysed using one-way ANOVA followed by Newman Keuls post hoc test Results: The results showed that metformin significantly limited isoproterenol-induced myocardial injury in both diabetic and non-diabetic rats. Metformin significantly decreased the elevated serum levels of brain natriuretic peptide (BNP), matrix metalloproteinase (MMP), cardiac troponin t (cTn-T) which was induced by isoproterenol. It also limited expression of tissue necrotic factor-α (TNF-α) following the cardiac injury in diabetic and non-diabetic rats.
Problem-Based Learning-Based Ipa Practicum Module To Improve Problem-Solving Ability
Authors: Wahyudiana Endang , Sagita Julius , Iasha Vina , Setiantini Ari , Setiarini Ari
Published: November 2021

This study aims to determine the characteristics of Problem Based Learning-based science modules to improve problem-solving skills and to determine the feasibility of Problem Based Learning-based science modules. The method used in this study is the Research and Development proposed by Dick and Carey. Module development is assessed based on the feasibility of materials, learning tools, media, and language by 3 lecturers, 1 language expert, and 1 teacher. Data collection ability to solve problems using tests. The development stage of the Problem Based Learning-based science module to improve problem-solving skills in human and environmental materials begins with a needs analysis, the design stage is in the form of drafting the module draft, the develop stage is in the form of validating the module draft, after being valid, a trial is carried out. The modules developed have a very good quality category so that they are suitable for use in science learning. Furthermore, there is an increase in the average problem-solving ability during learning using a Problem Based Learning-based science module to improve problem-solving skills as indicated by the results of the pre-test and post-test.
EFEKTIVITAS LAYANAN KONSELING KELOMPOK TEKNIK SELF-MANAGEMENT UNTUK MEREDUKSI PERILAKU PROKRASTINASI AKADEMIK SISWA KELAS X SMAN 15 SURABAYA
Authors: Saka Apolinarius Dari , Wirastania Aniek
Published: November 2021

Penelitian ini bertujuan mengukur efektivitas layanan konseling kelompok dengan menggunakan teknik self-management untuk mereduksi perilaku prokrastinasi akademik siswa kelas X SMAN 15 Surabaya. Instrumen yang digunakan pada penelitian menggunakan skala pengukuran. Peneliti menerapkan rancangan penelitian menggunakan desain One Group Pretest Post-Test yang diberikan terhadap 6 orang siswa yang mendapatkan skor pengukuran perilaku prokrastinasi akademik pada klasifikasi paling tinggi. Analisis data yang digunakan dalam penelitian ini adalah uji wilcoxon yang merupakan analisis non-parametrik. Hasil interprestasi data statistik dalam uji wilcoxon diperoleh signifikasi sebesar 0,028. Nilai asymp.Sig (2-tailed) sebesar 0,028 lebih kecil dari 0,05 sehingga disimpulkan hipotesisnya diterima. Dengan demikian maka diambil kesimpulan teknik self-management secara siginifikan efektif untuk mereduksi perilaku prokrastinasi akademik siswa kelas X SMAN 15 Surabaya.
Penıngkatan Motıvası Kerja Guru Melaluı Metode Supervısı Akademık
Authors: Sri Kis Untari
Published: November 2021

Penelitian ini untuk mengetahui keefektifan penggunaan metode supervisi dalam meningkatkan motivasi guru SD Negeri Margorejo I/403 Surabaya. Responden berjumlah 51 Guru. Penelitian ini adalah Penelitian Tindakan Sekolah (PTS) yang dilakukan pada saat proses pembelajaran berlangsung. Metode penelitian yaitu PTS. Prosedur PTS yaitu Perencanaan-Aksi-Observasi-Refleksi. Data diperoleh dengan menggunakan wawancara. Disamping itu, observasi kelas juga dilakukan oleh peneliti. Data dianalisis secara deskriptif. Hasil menunjukkan bahwa penggunaan metode supervisi pda guru pada SD Negeri Margorejo I/403 efektif untuk meningkatkan meningkatkan motivasi guru. Terbukti dari hasil perolehan nilai rerata 89.75. Disimpulkan bahwa dengan menggunakan metode supervisi membawa perubahan kondisi motivasi gura dalam praktik lapangan.
Pengembangan Modul Pembelajaran IPA Berbasis Contexstual Teaching and Learning Untuk Kelas IV di SD
Authors: Muthyara Daryus  , Firman  , Desyandri
Published: November 2021

Penelitian ini bertujuan untuk mendiskripsikan dan mengembangkan modul pembelajaran IPA berbasis Contexstual Teaching and Learning (CTL) untuk kelas IV di SD Negeri 22 Kuranji yang valid dan praktis. Jenis penelitian yang digunakan adalah pengembangan (Research and Development) dengan menggunakan modivikasi model 3-D yaitu terdiri dari tahap define, design, and development. Penelitian ini dilakukan pada semester genap tahun ajaran 2019/2020. Validator angket terdiri dari 1 orang dosen validator materi, 1 orang dosen validator desain dan 1 orang dosen validator bahasa. Berdasarkan hasil penelitian, validasi modul yang dilakukan dari aspek materi IPA memperoleh penilaian 3,20, dari aspek tampilan memperoleh penilaian 3,83 dan dari aspek bahasa memperoleh penilaian 4,00. Dilihat rata-rata skor penilaian modul pembelajaran IPA berbasis CTL yang memperoleh secara keseluruhan yaitu 3,67 dengan kategori sangat valid. Sedangkan uji praktikalitas terdiri dari 1 orang guru dan 23 orang siswa . dari hasil praktikalitas oleh guru memperoleh presentase hasil 83,85% dengan kategori praktis dan dari hasil praktikalitas oleh siswa diperoleh presentase hasil 82,26% dengan kategori praktis. Dari hasil penelitian ini dapat disimpulkan bahwa modul pembelajaran IPA berbasis CTL yang dihasilkan sangat valid dan praktis digunakan dalam pembelajaran IPA sehingga dapat digunakan dalam pembelajaran IPA dikelas IV SD.
COMPREENDENDO A DINÂMICA DE PRODUÇÃO DE SOLUÇÕES TECNOLÓGICAS PELA AGRICULTURA FAMILIAR
Authors: Pereira Brum Camila , Machado Deponti Cidonea , Alexandre Mengel Alex
Published: November 2021

Este artigo refere-se ao Projeto O Papel dos Agricultores Familiares na Produção de Soluções Tecnológicas para a Agricultura Familiar, realizado em parceria entre a Universidade Federal do Rio Grande do Sul (UFRGS)/Litoral Norte e a Universidade de Santa Cruz do Sul (Unisc), RS. A área da pesquisa é a região do Vale do Rio Pardo, RS. Para realização da pesquisa mobilizou-se um grupo de instituições importantes para a região e foi aplicado um formulário para a localização das soluções tecnológicas. Após a sistematização dos dados foram encontradas 58 técnicas e tecnologias geradas pelos agricultores. Posteriormente foram selecionados 18 casos considerados mais signifi cativos para a equipe do projeto, para que fossem aplicados às entrevistas semiestruturadas. As entrevistas foram analisadas, e os resultados obtidos permitiram catalogar as soluções tecnológicas, com isso concluiu-se que os agricultores familiares encontram formas de resiliência e de manutenção no meio rural, além de produzirem conhecimentos traduzidos em produtos, processos ou práticas.
Stress Analysis of Functionally Graded Disk with Exponentially Varying Thickness using Iterative Method
Authors: Paul Sandeep Kumar , Sahni Manoj
Published: November 2021

In this paper, variable thickness disk made up of functionally graded material (FGM) under internal and external pressure is analyzed using a simple iteration technique. Thickness of FGM disk and the material property, namely, Young’s modulus are varying exponentially in radial direction. Poisson’s ratio is considered invariant for the material. Navier equation is used to formulate the problem in the differential equation form under plane stress condition. Displacement, stresses, and strains are obtained under the influence of material gradation and variable thickness. Three different material combinations are considered for the FGM disk. The mechanical response of disk obtained for different functionally graded material combinations are compared with the homogenous disk, and results are plotted graphically
Non-polynomial Cubic Spline Method for the Solution of Second-order Linear Hyperbolic Equation
Authors: Çağlar Nazan
Published: November 2021

Second-order linear hyperbolic equations are solved by using a new three level method based on nonpolynomial spline in the space direction and Taylor expansion in the time direction. Numerical results reveal that three level method based on non-polynomial spline is implemented and effective
Relationship between workload and job satisfaction of nurses at the Young Inpatient Installation Ready for Surgery at the Aceh Tamiang Regional General Hospital
Authors: Kurniawan Bambang , Simanjorang Asyiah , Aini Nur
Published: November 2021

The purpose of this study was to determine the relationship between workload and job satisfaction of nurses in the Young Inpatient Installation available for surgery at the Aceh Tamiang Regional General Hospital.This research is a cross sectional analytic survey type where the independent variable and the dependent variable are examined simultaneously. The population in this study were 30 nurses in the Young Inpatient Installation available for surgery at the Aceh Tamiang Regional General Hospital. The results of the bivariate analysis with the chi-square statistical test showed that there was a relationship between qualitative workload and job satisfaction of nurses with a p-value of 0.005 (p <0.05), there was a relationship between quantitative workload and job satisfaction of nurses with a p-value of 0.019 ( p <0.05) after the chi-square statistical test was performed. It is recommended to the Aceh Tamiang Regional Hospital for the placement of the need for nurses to be adjusted in quantity and quality to increase job satisfaction of the nurses in charge, to conduct surveys and analysis of job satisfaction periodically for evaluation as a basis for improving and improving employee performance from the aspect of job satisfaction of nurses, and for other researchers. It is hoped that they can carry out more specific research with other factors that can lead to job satisfaction of nurses related to different methods and data analysis.
DISCURSIVE CATEGORIES OF EVALUATION AND DIALOGICITY IN ACADEMIC DISCOURSE
Authors: Хутыз Ирина Павловна , Петренко Юлия Андреевна
Published: November 2021

В статье рассматриваются характеристики дискурсивных категорий оценки и диалогичности в академическом дискурсе. Оценка изучена на материале 5 отзывов о диссертации, размещенных на сайте КубГУ, а дискурсивная категория диалогичности - на материале трех открытых лекций современных лингвистов. В ходе исследования были использованы методы дискурсивного и лингвопрагматического анализа, классификации, систематизации и интерпретации. В результате проведенного исследования мы делаем вывод о том, что оценка в отзыве преимущественно реализуется с помощью обязательных и факультативных компонентов, а также обуславливается коммуникативной ситуацией, заданной параметрами институциональности академического дискурса. Диалогичность, способствующая интерактивному характеру лекции и усиливающая чувство контакта лектора с аудиторией, конструируется средствами, которые объединяют лектора со слушателями в единую коммуникативную плоскость. В анализируемых лекциях нами были выделены тактики диалогизации: управление вниманием; очеловечивание лектора; объяснение лектором своих действий, которые формируют дискурсивную категорию диалогичности. Научная новизна данного исследования заключается в следующем: выявлена специфика категории оценки на материале отзыва о диссертации, в результате чего конкретизируются особенности данного жанра академического дискурса; определены тактики коммуникативной стратегии кооперации, с помощью которой конструируется категория диалогичности в лекции.

The article examines the characteristics of the discursive categories of evaluation and dialogicity in academic discourse. Evaluation is examined in five dissertation reviews available on the website of Kuban State University. Dialogicity is studied in three open lectures by modern Russian linguists. The methodology includes methods of discursive and pragmatic analysis, classification, systematization, and interpreting. The conclusion made is that the category of evaluation in the dissertation review is expressed by means of compulsory and optional components, and by the communicative situation determined by the institutional parameters of discourse. Dialogicity makes the lecture discourse interactive, enhances the speaker’s contact with listeners and is constructed with the help of the means that unite the lecturer with the audience during the process of communication. It was discovered that the communication strategy of cooperation is constructed by means of the following tactics: dialogizing, attention management, explaining lecturer’s actions, and lecturer’s humanizing. The scientific novelty of this study is in identification of the specific features of the evaluation category in dissertation reviews, which allows us to specify the features of this genre of academic discourse; in determining the components of the communication strategy of cooperation that constructs dialogicity in lecture discourse.
CLASSIFICATION OF ENGLISH PRONUNCIATION SKILLS AS AN OBJECT OF TEACHING ENGLISH PRACTICAL PHONETICS AT LINGUISTICS INSTITUTE (PEDAGOGICAL TRAINING)
Authors: Любимова Алина Андреевна
Published: November 2021

В данной статье аргументируется необходимость пересмотра номенклатуры профессионально-профильных устно-речевых умений как объекта контроля при обучении практической фонетике английского языка в языковом вузе в условиях функционирования английского языка как глобального лингва франка. Основываясь на результатах анализа научных и нормативных источников, автор предлагает расширенный перечень профессионально-профильных устно-речевых умений, формирование и развитие которых представляется целесообразным для студентов, обучающихся по программам бакалавриата языкового вуза (педагогический профиль). Предлагаемая номенклатура продуктивных и рецептивных умений учитывает требования к нормативности в оформлении устной речи будущего преподавателя английского языка, необходимость формирования медиативных устно-речевых умений при овладении фонетикой английского языка как глобального лингва франка, а также необходимость формирования и поддержания готовности студентов языкового вуза к общению в условиях социокультурного разнообразия и произносительной вариативности.

This article seeks to justify the necessity of rethinking and re-establishing the range of professional pronunciation skills that English language teaching and linguistics majors are required to develop. This change is conditioned by the status of English as a global lingua franca, i.e., the primary language of international communication, and the consequent recent change in international requirements towards English learners’ pronunciation. The suggested list of pronunciation skills is based on the recommendations outlined in contemporary phonetics research as well as Russian and international educational standards and requirements. It takes into consideration the necessity of developing students’ mediation skills as well as their readiness to participate in intercultural communication with the representatives of various sociocultural and linguistic backgrounds.
THE LATEST DTM USING INSAR FOR DYNAMICS DETECTION OF SEMANGKO FAULT-INDONESIA
Authors: Julzarika Atriyon , Aditya Trias , Subaryono Subaryono , Harintaka Harintaka
Published: November 2021

The latest Digital Terrain Model (DTM) is seen as an upgradable DTM that is fitted to the latest combination of DTM master and its displacement. The latest DTM can be used to overcome the problem of static DTM weaknesses in displaying the latest topographic changes. DTM masters are obtained from InSAR and Digital Surface Model (DSM) ALOS PALSAR conversions. Meanwhile, the displacement is obtained from Sentinel-1 images, which can be updated every 6–12 days or at least every month. ALOS PALSAR data were the images acquired in 2008 and 2017, while Sentinel-1 data used were images acquired in 2018 and 2020. This study aims to reveal the importance of an upgradable DTM so called latest DTM which is combination of DTM master and its displacement in order to show the latest condition of study area. The case study is the dynamics analyze of the Semangko fault specifically in the Sianok and Sumani segments situated in Indonesia. The vertical accuracy assessment was done to evaluate the DSM to DTM conversion with a tolerance of 1.96σ. The result obtained is the latest DTM. It is derived from the integration of the DTM master with displacement. The latest DTM can be used to detect the dynamics of Semangko fault. The study area has vertical deformation at a value of –50 cm to 30 cm. The Semangko fault area is dominated by –25 to 5 cm deformation. In general, this region has decreased. The decline in this region ranges from 7.5 cm to 10 cm per year. The latest DTM vertical accuracy is 2.158 m (95% confidence level) with a scale of 1: 10,000 to 1: 20,000.
AGN−Host Interaction in IC 5063. I. Large-scale X-Ray Morphology and Spectral Analysis
Authors: Travascio A. , Fabbiano G. , Paggi A. , Elvis M. , Maksym W. P. , Morganti R. , Oosterloo T. , Fiore F.
Published: November 2021

We report the analysis of the deep (∼270 ks) X-ray Chandra data of one of the most radio-loud, Seyfert 2 galaxies in the nearby universe (z = 0.01135), IC 5063. The alignment of the radio structure with the galactic disk and ionized bicone, enables us to study the effects of both radio jet and nuclear irradiation on the interstellar medium (ISM). The nuclear and bicone spectra suggest a low photoionization phase mixed with a more ionized or thermal gas component, while the cross-cone spectrum is dominated by shocked and collisionally ionized gas emission. The clumpy morphology of the soft (<3 keV) X-ray emission along the jet trails, and the large (≃2.4 kpc) filamentary structure perpendicular to the radio jets at softer energies (<1.5 keV), suggest a large contribution of the jet−ISM interaction to the circumnuclear gas emission. The hard X-ray continuum (>3 keV) and the Fe Kα 6.4 keV emission are both extended to kpc size along the bicone direction, suggesting an interaction of nuclear photons with dense clouds in the galaxy disk, as observed in other Compton Thick (CT) active nuclei. The northwest cone spectrum also exhibits an Fe xxv emission line, which appears spatially extended and spatially correlated with the most intense radio hot-spot, suggesting jet−ISM interaction.
Ion Cloud Expansion after Hyper-velocity Dust Impacts Detected by the Magnetospheric Multiscale Mission Electric Probes in the Dipole Configuration
Authors: Vaverka Jakub , Pavlů Jiří , Nouzák Libor , Šafránková Jana , Němeček Zdeněk , Antonsen Tarjei , Mann Ingrid , Lindqvist Per-Arne
Published: November 2021

Dust impact detection by electric field instruments is a well-established technique. On the other hand, not all aspects of signal generation by dust impacts are completely understood. We present a study of events related to dust impacts on the spacecraft body detected by electric field probes operating simultaneously in the monopole (probe-to-spacecraft potential measurement) and dipole (probe-to-probe potential measurement) configurations by the Earth-orbiting Magnetospheric Multiscale mission spacecraft. This unique measurement allows us to investigate connections between monopole and dipole data. Our analysis shows that the signal detected by the electric field instrument in a dipole configuration is generated by an ion cloud expanding along the electric probes. In this case, expanding ions affect not only the potential of the spacecraft body but also one or more electric probes at the end of antenna booms. Electric probes located far from the spacecraft body can be influenced by an ion cloud only when the spacecraft is located in tenuous ambient plasma inside of the Earth's magnetosphere. Derived velocities of the expanding ions on the order of tens of kilometers per second are in the range of values measured experimentally in the laboratory.
The Stochastic X-Ray Variability of the Accreting Millisecond Pulsar IGR J17062–6143
Authors: Bult Peter
Published: November 2021

This work presents an investigation of the stochastic X-ray variability from the 164 Hz accreting millisecond pulsar IGR J17062–6143, based on regular observations collected with the Neutron Star Interior Composition Explorer between 2017 July and 2020 August. Over this period, the power-density spectrum showed a stable morphology, with broad ∼25% rms band-limited noise below 16 Hz. Quasi-periodic oscillations (QPOs) were occasionally observed, with the most notable detections including a low-frequency QPO centered at 2.7 Hz and a sharp QPO centered at 115 Hz that may be a 2:3 resonance with the spin frequency. Further, the energy dependence of the band-limited noise is studied through a spectroscopic analysis of the complex covariance in two frequency intervals. It is found that the power-law continuum is the primary driver for the observed variability, although the thermal (blackbody) emission also appears to be intrinsically variable in area (5% rms) and temperature (1% rms). Notably, the 1 keV emission feature seen in all X-ray spectra of IGR J17062–6143 varies with the same amplitude as the power-law emission, but systematically lags behind that continuum emission. These results appear consistent with a scenario in which a time-variable Compton scattering corona is the primary source for the observed stochastic variability, with the variability observed in the emission feature and at the lowest photon energies being due to the disk reflection of the power-law continuum.
The Formation of Astromolecule Ethynyl Cyclopropenylidene (c-C3HCCH) from C2H and c-C3H2
Authors: Fortenberry Ryan C.
Published: November 2021

Reaction schema for the formation of the recently detected ethynyl cyclopropenylidene (c-C3HCCH) molecule are currently lacking in the literature. The present quantum chemical study shows that the reaction of the abundant ethynyl (C2H) and cyclopropenylidene (c-C3H2) molecules proceeds barrierlessly through the formation of a 1 2
A c-HC3HCCH intermediate at 71.2 kcal mol−1 below the reactants. The uphill exit channel climb for the C−H bond dissociation will compete with a transition state 45.9 kcal mol−1 below the reactants to form another, lower-energy intermediate (

1

2

A
′

c-C3H2CCH) 84.3 kcal mol−1 below the reactants. The direct dissociation from the first intermediate is likely the dominant pathway under astrophysical conditions because the hydrogen leaving group can dissipate the energy kinetically. In either case of direct dissociation or crossing the transition state, the hydrogen atom dissociation to the final products lying 27.2 kcal mol−1 below the starting materials requires a crossover of electronic states with the singly occupied molecular orbital moving from the π cloud of the cyclopropenyl group onto the leaving H atom. As a result, this C2H + c-C3H2 → c-C3HCCH + H reaction should be as fast as theorized in astrophysical media such as TMC-1, where the titular molecule has now been observed.
An Eclipsing Black Widow Pulsar in NGC 6712
Authors: Yan Zhen , Pan Zhi-chen , Ransom Scott M. , Lorimer Duncan R. , Qian Lei , Wang Pei , Shen Zhi-qiang , Li Di , Jiang Peng , Luo Jin-Tao , Liu Jie , Huang Zhi-peng
Published: November 2021

We report the discovery of the first radio pulsar associated with NGC 6712, an eclipsing black widow (BW) pulsar, J1853–0842A, found by high-sensitivity searches using the Five-hundred-meter Aperture Spherical radio Telescope. This 2.15 ms pulsar is in a 3.56 hr compact circular orbit with a very low mass companion likely of mass 0.018 to 0.036 M
⊙ and exhibits eclipsing of the pulsar signal. Though the distance to PSR J1853–0842A predicted from its dispersion measure (155.125 ± 0.004 cm−3 pc) and Galactic free electron density models are about 30% smaller than that of NGC 6712 obtained from interstellar reddening measurements, this is likely due to limited knowledge about the spiral arms and Scutum stellar cloud in this direction. Follow-up timing observations spanning 445 days allow us to localize the pulsar’s position to be 0.14 core radii from the center of NGC 6712 and measure a negative spin-down rate for this pulsar of −2.39(2) × 10−21 s s−1. The latter cannot be explained without the acceleration of the globular cluster (GC) and decisively supports the association between PSR J1853–0842A and NGC 6712. Considering the maximum GC acceleration, the Galactic acceleration, and the Shklovskii effect, we place an upper limit on the intrinsic spin-down rate to be 1.11 × 10−20 s s−1. From an analysis of the eclipsing observations, we estimate the electron density of the eclipse region to be about 1.88 × 106 cm−3. We also place an upper limit of the accretion rate from the companion at about 3.05 × 10−13
M
⊙ yr−1, which is comparable with some other BWs.
The Observed Mass Distribution of Galactic Black Hole LMXBs Is Biased against Massive Black Holes
Authors: Jonker Peter G. , Kaur Karamveer , Stone Nicholas , Torres Manuel A. P.
Published: November 2021

The discovery of gravitational-wave radiation from merging black holes (BHs) also uncovered BHs with masses in the range of ≈20–160 M
⊙. In contrast, the most massive Galactic stellar-mass BH currently known has a mass of ≈21 M
⊙. While low-mass X-ray binaries (LMXBs) will never independently evolve into a binary BH system, and binary evolution effects can play an important role in explaining the different BH masses found through studies of X-ray binaries and gravitational-wave events, (electromagnetic) selection effects may also play a role in this discrepancy. Assuming BH LMXBs originate in the Galactic plane, we show that the spatial distributions of the current samples of confirmed and candidate BH LMXBs are both biased to sources that lie at a large distance from the plane. Specifically, most of the confirmed and candidate BH LMXBs are found at a Galactic height larger than three times the scale height for massive star formation. In addition, the confirmed BH LMXBs are found at larger distances to the Galactic center than the candidate BH LMXBs. Interstellar absorption makes candidate BH LMXBs in the plane and bulge too faint for a dynamical mass measurement using current instrumentation. Given the observed and theoretical evidence for BH natal and/or Blaauw kicks, their relation with BH mass and binary orbital period, and the relation between outburst recurrence time and BH mass, the observational selection effects imply that the current sample of confirmed BH LMXBs is biased against the most massive BHs.
C/2014 UN271 (Bernardinelli-Bernstein): The Nearly Spherical Cow of Comets
Authors: Bernardinelli Pedro H. , Bernstein Gary M. , Montet Benjamin T. , Weryk Robert , Wainscoat Richard , Aguena M. , Allam S. , Andrade-Oliveira F. , Annis J. , Avila S. , Bertin E. , Brooks D. , Burke D. L. , Carnero Rosell A. , Kind M. Carrasco , Carretero J. , Cawthon R. , Conselice C. , Costanzi M. , da Costa L. N. , Pereira M. E. S. , De Vicente J. , Diehl H. T. , Everett S. , Ferrero I. , Flaugher B. , Frieman J. , García-Bellido J. , Gaztanaga E. , Gerdes D. W. , Gruen D. , Gruendl R. A. , Gschwend J. , Gutierrez G. , Hinton S. R. , Hollowood D. L. , Honscheid K. , James D. J. , Kuehn K. , Kuropatkin N. , Lahav O. , Maia M. A. G. , Marshall J. L. , Menanteau F. , Miquel R. , Morgan R. , Ogando R. L. C. , Paz-Chinchón F. , Pieres A. , Malagón A. A. Plazas , Rodriguez-Monroy M. , Romer A. K. , Roodman A. , Sanchez E. , Schubnell M. , Serrano S. , Sevilla-Noarbe I. , Smith M. , Soares-Santos M. , Suchyta E. , Swanson M. E. C. , Tarle G. , To C. , Troxel M. A. , Varga T. N. , Walker A. R. , Zhang Y. ,   (The DES Collaboration)
Published: November 2021

Comet C/2014 UN271 (Bernardinelli-Bernstein), incoming from the Oort cloud, is remarkable in having the brightest (and presumably largest) nucleus of any well-measured comet and having been discovered at the heliocentric distance r

h
≈ 29 au, farther than any Oort cloud comet. In this work, we describe the discovery process and observations and the properties that can be inferred from images recorded until the first reports of activity in 2021 June. The orbit has i = 95°, with a perihelion of 10.97 au to be reached in 2031 and a previous aphelion at 40,400 ± 260 au. Backward integration of the orbit under a standard Galactic tidal model and known stellar encounters suggests a perihelion of q ≈ 18 au on its previous perihelion passage 3.5 Myr ago; hence, the current data could be the first ever obtained of a comet that has not been inside Uranus’s orbit in 4 Gyr. The photometric data show an unresolved nucleus with absolute magnitude H

r
= 8.0, colors that are typical of comet nuclei or Damocloids, and no secular trend as it traversed the range 34–23 au. For the r-band geometric albedo p

r
, this implies a diameter of

150

(

p

r

/

0.04
)

−
0.5

km. There is strong evidence of brightness fluctuations at the ±0.2 mag level, but no rotation period can be discerned. A coma, nominally consistent with a “stationary” 1/ρ surface brightness distribution, grew in scattering cross section at an exponential rate from A
f
ρ ≈ 1 to ≈150 m as the comet approached from 28 to 20 au. The activity rate is consistent with a very simple model of sublimation of a surface species in radiative equilibrium with the Sun. The inferred enthalpy of sublimation matches those of CO2 and NH3. More volatile species, such as N2, CH4, and CO, must be far less abundant on the sublimating surfaces.
Association between Coronary Artery Disease and Left Ventricle Remodeling Parameters in Hypertensive Patients: A Cross-Sectional Study in a Limited Resource Setting
Authors: Tiksnadi Badai , Martanto Erwan , Panggabean Abednego , Savitri Ary Indriana , Undarsa Alberta Claudia
Published: November 2021

BACKGROUND: Coronary artery disease (CAD) and hypertension are related with left ventricle (LV) remodeling, however evidence about association between CAD and remodeling in hypertensive patient is still limited, especially in limited resource setting like Indonesia.

AIM: Evaluating impact of CAD on LV remodeling within hypertensive patients at tertiary referral hospital, Hasan Sadikin General Hospital Bandung, Indonesia.

METHOD: Cross-sectional study involving 120 hypertensive patients who visited cardiology outpatient clinic from September-December 2019 and underwent transthoracic echocardiography examination for any medical indications. LV remodeling parameters, such as mass (LV Mass Index [LVMi]), volume (end-diastolic volume/body surface area [BSA]), and relative wall thickness (RWT), were compared between CAD and non-CAD groups.

RESULTS: There were 108 patients to be analyzed, 12 patients were excluded due to technical difficulty (n = 9) and non-cooperative during interview (n = 3). Mean (standard deviation) age of patients was 56.9 (±11.8) years, 50 (46.3%) patients were male, and median (interquartile range) hypertension duration was 3 (±4.40) years. CAD was found in 40 (37.0%) patients. In the adjusted analysis, patients with CAD had average 27.75 g/m2 higher LVMi (95% confined interval [CI] 2.03; 53.47; p = 0.035) and 16.20 ml/m2 higher LV end-diastolic volume/BSA (95% CI 4.14; 28.25; p = 0.009) compared to those without. This was independent of age, duration of hypertension, consumption of antihypertensive therapy, and type-2 diabetes mellitus, but disappeared after heart failure (HF) was included in the study. CAD and non-CAD groups were not different, respectively, to RWT.

CONCLUSION: In hypertensive patients, CAD was independently associated with higher LV mass and volume. These associations, however, were largely explained by the presence of HF. CAD did not associate with RWT.
Pratiques spontanées du questionnement en vidéoformation : une étude de deux cas en contextes professionnels différents
Authors: Alonso Vilches Vincent , Verpoorten Dominique , Detroz Pascal , Pirard Florence
Published: November 2021

Cet article étudie les pratiques de questionnement qui se manifestent spontanément en vidéoformation dans deux contextes éloignés en apparence : stages en crèche et accompagnement pédagogique en enseignement universitaire. Il a pour but d’identifier le type de questionnement privilégié par des accompagnateurs et d’en comprendre leur utilisation. L’observation de trois débriefings issus de chacun de ces deux contextes fait apparaître des tendances analogues : une dominance des questions inductives et un guidage orienté vers la résolution de problème. Des autoconfrontations menées avec deux accompagnateurs sur la base des traces audiovisuelles de leur activité mettent en lumière une utilisation spécifique du questionnement, non pas tant pour s’informer au sujet de l’action réalisée par les accompagnés et visible à l’écran, que pour susciter chez ceux-ci une réflexion à visée professionnelle. Ces résultats sont discutés à la lumière des paradigmes qui président aux pratiques d’accompagnement et des conditions d’efficacité et de complémentarité des postures professionnelles. L’étude intéressera les formateurs et leurs responsables. En effet, ces pratiques spontanées d’accompagnement étant essentielles dans le milieu de la formation, il est important de mieux en saisir les possibles limites et contradictions et de montrer comment une intervention langagière peut avoir des effets éventuellement en décalage avec les intentions visées. Les implications pour la formation professionnelle des accompagnateurs sont évoquées en conclusion.
Mobile Phone and Family Happiness, Mediating Role of Marital Communication: An Attachment Theory Perspective
Authors: Akrim A. , Dalle Juhriyansyah
Published: November 2021

Mobile phone communication has established itself as an essential element of people's personal and working lives medium of connection in daily interactions and relationships. It has thus become significant for the most intimate form of interpersonal relations, including marital relationships. This small-scale research seeks to find the importance of mobile phone communication in marriage and its influence on family happiness. The study unearths the patterns of mobile phone communication among married partners, by outlining the most common reasons for communicating with the spouse on a mobile phone. In this research, a survey was conducted using a questionnaire to collect data from 30 respondents who were married partners, staff, or students in one of the state-owned universities in South Kalimantan. Each of the respondents possessed a mobile phone. The Mann-Whitney test indicates that the males profoundly believed that mobile phone communication was more important to their marriage than females to strengthen their relationship. Also, the males reported a higher frequency of sending messages and calling their spouses. By and large, the study results describe the most common reasons for communicating with the spouse. The outstanding reason is maintaining a strong intimate relationship by keeping in touch, sharing updates, emotions, feelings, knowing about children, and ensuring the safety of each other through checking on one another using a mobile phone. The findings have significance in showing the need for continued communication in a marital relationship, especially by using the fastest and most comfortable means of mobile phone. Given the synchronous nature of mobile phone communication, the results indicate that married spouses cannot do without it, especially in this Information Society, where we need updates from our spouses, children, friends, and the situation at large.
A Survey on Improving QoS in Service Level Agreement for Cloud Computing Environment
Authors: Edinat Afaf , Al-Sayyed Rizik M. H. , Hudaib Amjad
Published: November 2021

Cloud computing is considered one of the most important techniques in the field of distributed computing which contributes to maintain increased scalability and flexibility in computer processing. This is achieved because it, using the Internet, provides different resources and shared services with minimum costs. Cloud service providers (CSPs) offer many different services to their customers, where the customers’ needs are met seeking the highest levels of quality at the lowest considerate prices. The relationship between CSPs and customers must be determined in a formal agreement, and to ensure how the QoS between them will be fulfilled, a clear Service Level Agreement (SLA) must be called for. Several previously-proposed models used in the literature to improve the QoS in the SLA for cloud computing and to face many of the challenges in the SLA are reviewed in this paper. We also addressed the challenges that are related to the violations of SLAs, and how overcoming them will enhance customers’ satisfaction. Furthermore, we proposed a model based on Deep Reinforcement Learning (DRL) and an enhanced DRL agent (EDRLA). In this model, and by optimizing the learning process in EDRLA, proposed agents would be able to have optimal CSPs by improving the learning process in EDRLA. This improvement will be reflected in the agent's performance and considerably affect it, especially in identifying cloud computing requirements based on the QoS metrics.
Leibniz y Boyle sobre la noción de naturaleza: un debate póstumo acerca de los fundamentos del mecanicismo en "De ipsa natura" (1698)
Authors: Fazio Rodolfo
Published: November 2021

En el presente trabajo estudiamos el concepto de naturaleza en Leibniz y Boyle y la fundamentación que a partir de dicha noción cada uno ofrece del mecanicismo. De modo más específico, proponemos que De ipsa natura (1698) de Leibniz se articula como un debate póstumo con A Free Enquiry into the Vulgarly Received Notion of Nature (1686) de Boyle, siendo el objetivo inicial del texto leibniziano revisar la concepción boyleana de naturaleza y ofrecer una fundamentación alternativa del mecanicismo que permita introducir una comprensión internalista de las leyes naturales.
Palabras Clave: Leibniz, Boyle, naturaleza, mecanicismo, fuerza.
Evaluation of Empirical Relation between Compressive and Flexural Strength of Concrete Partially Using Alccofine and Nano-Silica
Authors: Ashwini K. , Rao P. Srinivasa
Published: November 2021

In this paper, the flexural strength of concrete using alccofine and nano-silica was investigated experimentally and analytically. 15% alccofine and 3% nano-silica by weight of cement was used as a binary and ternary blend in three concrete grades M40, M50, and M60. Compressive strength and flexural strength were obtained experimentally by curing the specimens in water for 28 days. The empirical equation between compressive strength and flexural strength in the form of fr =bfc’n was obtained using regression analysis. The proposed empirical relation was compared with relations given by a code of practices and the relations reported by other researchers for predicting flexural strength using the compressive strength of concrete. The accuracy of the proposed empirical relation was validated using various statistical equations. From the experimental results, it was found that the cubic compressive strength and flexural strength of ternary blended concrete mixes using alccofine and nano-silica was 20 to 29% and 32 to 39 % higher compared to the control mixes. From the values of statistical equations, the proposed relation was found accurate. It showed less error compared to other relations and can be used to determine flexural strength results based on compressive strength data.
The war of ethical worlds: why an acceptance of Posthumanism on Mars does not imply a follow up on Earth
Authors: Garasic Mirko Daniel
Published: November 2021

Space bioethics, or the bioethical approach to space exploration, is still a very limited field that mostly spins off from debates that we are having on Earth already. When discussing hypothetical scenarios such as that of colonizing Mars or other planets we tend to filter such conceptualizations through the eyes of our earthly standpoint. Yet, by looking into some of the approaches that various Posthumanist scholars with different levels of space exploration enthusiasm propose, we should resist the temptation to establish or reinforce a continuity between the ethical standards applied on Earth and Mars (or other planets or contexts in Space that substantially differ from Earth). This temptation is indeed very strong in the current literature; hence it needs to be addressed so to help us not being deviated from understanding what Mars or space colonization might indeed imply for humanity. This paper wants to introduce to a wider audience the concern that it is of crucial importance to acknowledge that the exceptionality of the conditions occurring in space should not be used as a tool to lower our guard towards a mass implementation of societal, biological and ethical revolutions on this planet and our world as the result of maladapting states of exceptionality that might work well in space but have a much weaker ethical legitimacy on Earth.
The aphasic patient
Authors: Stohr Thelma
Published: November 2021

No abstract available.
NUEVOS MERCADOS DE ECONOMÍA POPULAR Y SOLIDARIA. UN ENFOQUE ESTRATÉGICO DESDE EL EMPRENDIMIENTO LOCAL
Authors: López-Lucas Luis Eduardo , Hidalgo-Ávila Argelio Antonio
Published: November 2021

La investigación tiene como objetivo principal contextualizar las iniciativas de emprendimiento que surgen desde los mercados de economía popular y solidaria; el enfoque es de carácter cualitativo e inductivo, con un nivel descriptivo analítico, documental y de campo, para lo cual se tomó como unidad de estudio la Coordinación de Desarrollo Económico del Gobierno Autónomo Descentralizado del (GAD) Manta, en la localidad del cantón Manta, provincia de Manabí (Ecuador), en la que participó como informante directa su responsable, así como el también conocer la postura de investigadores relacionados con el tema, todos mediante una entrevista en profundidad. La técnicas de análisis de los resultados se basó en las propuestas dadas desde la Teoría Fundamentada en cuanto a su saturación teoría, triangulación, comprensión analítica y proceso de interpretación; entre los resultados relevantes se encuentra la posibilidad de establecer un enfoque de manera estratégica, en la que se incluyan variables como sostenibilidad, innovación y colaboración, las cuales deben ser consideradas al momento de establecer estrategias de emprendimiento en mercados de economía popular y solidaria.

Palabras claves: Mercado de economía popular y solidaria, emprendimiento, estrategias.
Economics as the scientization of politics
Authors: Mulberg Jon
Published: November 2021

This paper uses Beck's concept of reflexive modernity, and a Foucauldian approach, to critique the positivist philosophy associated with contemporary conventional economics, and to show its inadequacy for the environmental emergency. The paper suggests economics is not neutral but performs an ideological function in justifying the political and social order. Economics can be deconstructed by tracing its history, thereby laying bare its philosophical and political roots. The environmental debate repeats past debates of the 1920s and 30s. By employing the 'subjugated' institutional economics approaches economics can be redefined, and the path to a truly Green New Deal can be unearthed.
Judo Sporcularına Uygulanan 8 Haftalık Elastik Bant Egzersizlerinin Bazı Fiziksel Parametreler Üzerine Etkilerinin Araştırılması
Authors: ERGENER Eymen Seyfullah , ERDAĞI Kenan
Published: November 2021

Bu araştırmanın amacı, 10-12 yaş grubu erkek judocularda 8 haftalık elastik bant egzersizlerinin bazı fiziksel parametreler üzerine etkilerini belirlemektir. Araştırmaya katılan sporcular elastik bant (E-Bant= 16) ve Kontrol (n= 16) gruplarına ayrılmıştır. E-Bant grubuna 8 hafta süresince haftada 6 gün yapılan judo antrenmanlarına ilaveten 3 gün elastik bant antrenmanları, Kontrol grubuna ise haftada 6 gün sadece judo antrenmanları uygulanmıştır. Sekiz haftalık antrenman programı öncesi ve sonrası gruplara esneklik, bacak kuvveti, sağ-sol el kavrama kuvveti, 30 sn şınav, 30 sn mekik, 20 m sürat, durarak uzun atlama, geriye sağlık topu atma ve dikey sıçrama testleri uygulanmıştır. E-Bant ve Kontrol grupları arasında fark olup olmadığını tespit etmek için Mann Whitney-U testi, hem E-Bant hem de Kontrol grubunun ön test ve son testleri arasında farklılık olup olmadığını tespit etmek için de Wilcoxon Testi yürütüldü. Çoklu analizler yapılmış olduğu için Bonferroni düzeltmesi uygulandı. Testler için anlamlılık düzeyi p < . 002 olarak kabul edildi. Sekiz haftalık elastik bant egzersiz sonunda E-Bant grubunun esneklik, bacak kuvveti, sağ el kavrama kuvveti, sol el kavrama kuvveti, 30 sn şınav, 30 sn mekik, 20 m sürat, durarak uzun atlama ve geriye sağlık topu atma performanslarında anlamlı düzeyde farkın olduğu belirlenmiştir (p < .002). Kontrol grubunun hiçbir performans parametresinde ise anlamlı düzeyde değişimin olmadığı tespit edilmiştir (p > .05). Sonuç olarak, 10-12 yaş grubu erkek judo sporcularına uygulanan 8 haftalık elastik bant egzersizlerinin sporcularının bazı fiziksel parametreleri üzerine etkisinin olduğu söylenebilir.
Antropometria, capacidade funcional, pressão arterial e nível de atividade física em universitários do interior paulista
Authors: Zanini Gabriel de Souza , Testa Junior Ademir , Lucena José Adwilton Curvelo de , Fernandes Bianca , Amaral Vanessa Teixeira do
Published: November 2021

A prática de exercícios físicos tende a ser reduzida na fase adulta, especialmente entre universitários, devido as altas demandas de tarefas no dia a dia. O presente estudo teve como objetivo descrever as características antropométricas, capacidade funcional, pressão arterial, além do nível de aptidão e atividade física em 73 estudantes universitários, de ambos os sexos regularmente matriculados nos cursos de Educação Física (EF), Pedagogia (PDG) e Administração (ADM), em uma faculdade no interior paulista. Utilizou-se testes de capacidade funcional, para mensurar valores de flexibilidade e força, e, para obtenção do nível de atividade física utilizou-se do IPAQ (versão curta). A estatura foi maior no grupo EF (171,02±6,54) comparado ao ADM (161,86±6,54) com nível de significância de p=0,04. O Índice de Massa Corporal (IMC) foi menor no grupo EF (24,65±2,76) em relação ao grupo ADM (100,8±11,84; p=0,03). O IPAQ indicou diferença significativa entre o grupo EF em relação à PDG e ADM sobre o percentual de indivíduos muito ativos (p=0,022, e p=0,31, respectivamente) e ADM apresentou indivíduos classificados como baixo nível de atividade física em relação ao grupo EF (p=0,04). Conclui-se que o nível de atividade física, bem como as capacidades funcionais apresentaram diferenças significantes entre os estudantes de ensino superior.