bluuebunny/crossref_metadata_2025 huggingface dataset:
STUDENT EVALUATION MATHEMATICAL EXPLANATION IN DIFFERENTIAL CALCULUS CLASS
Authors: Ningsi Gabariela Purnama , Nendy Fransiskus , Sugiarti Lana , Ardian Ali Ferdinandus
Published: May 2021

This study aimed to determine that the failure of students to evaluate mathematical explanations based on mathematics is influenced by sociomathematical norms, teaching authority, and classroom mathematics practice. The research method used is the case study method. The research data were obtained from inside and outside the research class. The data in the research class were in the form of field notes, video recordings of the class, video recordings of student group work, and student work. Data outside the research class is the result of interviews with three interview subjects. By studying the three evaluation methods students used in evaluating explanations, it was found that each student applied a different evaluation method at different times. The three evaluation methods contributed to some of the difficulties students experience in evaluating their mathematical descriptions. The results indicate that the failure of students in evaluating explanations is not solely due to errors in choosing the method, approach, or learning model used but can be caused by sociomathematical norms, authority, and classroom mathematics practices applied in the classroom.
THE ANALYSIS OF MATHEMATICAL LITERACY ON PLANE GEOMETRY MATERIAL WITH BATIK BETAWI TUMPAL PATTERN
Authors: Hindun Permatasari Vyvy , Dwi Kurniasih Meyta
Published: May 2021

Batik Betawi is one of the elements of Betawi culture heritage that needs to be reserved. This element of Betawi culture can be used as a learning and teaching media since it has patterns correlated to mathematics. One of the patterns that can be used as a mathematics lesson at school is the batik Betawi tumpal pattern, formed by triangles and squares. This research aims to examine the role of Betawi culture in mathematical literacy. This research implements the qualitative descriptive method with ethnographic approach. The results show that batik Betawi tumpal has a significant effect on mathematical literacy and it is also applicable to the teaching of plane geometry. Batik Betawi tumpal pattern as one of the elements of Betawi culture is relevant to use as a teaching media of plane geometry. It can also be used as a tool to visualize the object in concrete form to be more comprehensible for the students.
Fuerza prensil como factor predictor de Ansiedad-Rasgo en estudiantes universitarias
Authors: Huerta-Ojeda Álvaro Cristian , Barahona-Fuentes Guillermo , Galdames-Maliqueo Sergio , Cáceres-Serrano Pablo , Castillo Nelson , Ortiz-Marholz Paula
Published: May 2021

Introducción: Investigaciones han determinado que la implementación de programas de actividad física mejora la salud mental. Sin embargo, aún existen dudas sobre la relación entre fuerza muscular y la presencia de trastornos psicosociales como ansiedad y estrés en la población universitaria. Objetivo: Relacionar la condición física, específicamente la fuerza prensil, con la presencia de Ansiedad-Rasgo en estudiantes mujeres. Materiales y métodos: Investigación empírica con estrategia asociativa predictiva, con un diseño predictivo transversal. La muestra fue de 30 estudiantes mujeres de pregrado. Las variables físicas predictoras evaluadas fueron antropometría, fuerza prensil y consumo máximo de oxígeno, mientras que la Ansiedad-Rasgo se midió por medio del Cuestionario de Ansiedad Estado Rasgo (STAI). Se realizó análisis estadístico con una regresión logística ordinal entre las variables físicas predictoras y nivel de Ansiedad-Rasgo. Resultados: Se evidenció que sólo la fuerza prensil fue estadísticamente significativa (p=0,033). Este análisis expresado en Odds Ratio, asume un 74,36% de probabilidad que a un menor nivel de fuerza prensil, mayor presencia de Ansiedad-Rasgo. Conclusiones: La fuerza prensil, además de ser un parámetro físico que permite detectar riesgo cardiovascular y patologías asociadas, también debería ser considerada en la determinación de alteraciones en salud mental.
‘Abdrahman Umerov’s Travel Diary Describing Soviet Muslims at the Pan-Islamic Congress in Mecca and the Hajj (1926)
Authors: Nurimanov I. A.
Published: May 2021

This paper deals with history of the travel diary of imam-mukhtasib of Astrakhan Governorate ‘Abdurahman Umerov, which is devoted to his journey in Mecca made in order to take part at the Pan-Islamic Congress in Mecca and the Hajj (1926). Umerov was a member of the Soviet delegation. Umerov’s manuscript is the unique source, containing information on important meetings during the journey, on course of the congress itself as well as on the organization of the hajj rite. The paper also describes, in which way the Soviet delegation has been formed, which political events presupposed its visit to Mecca, how this visit infl uenced further relations between the Soviet Union and Saudi Arabia.
Halal Industry in the Republic of Tatarstan
Authors: Kusanova D. S.
Published: May 2021

The article analyzes the current state and topical problems of the “halal” industry in the Republic of Tatarstan. The author considers the stages of formation of this market sector and peculiarities of its functioning in the region. It is noted that the Islamic Economic Model (IEM) is the core on which the “halal” industry is based and developed. In turn, the concept of “permissible” and “forbidden” regulates the spheres of public relations among Muslims. The author examines the Halal Lifestyle and Halal Friendly directions, shows their main directions operating in the Republic of Tatarstan. The system of certifi cation in the past and present has been studied, and problems that need to be solved have been identifi ed.
“Islam Addressing the Reason and Admonishing the Mind”: Muhammad ‘Abduh (1849–1905) and His Main Work Treatise on Monotheism (Russian translation). Moscow: Medina, 2021
Authors: Kirillina S. A.
Published: May 2021

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The History of the Tradition of Translation of the Qurʼan into Spanish in the XV–XX Centuries in the Context of the Process of Establishment of a Multi-Religious Spanish Identity
Authors: Mukhetdinov D. V.
Published: May 2021

The given study is focused on the history of the tradition of translations of the Qur’an into Spanish during the period of XV–XX centuries in the context of the process of acknowledgement and construction of the inclusive pluri- religious and pluri- lingual identity of the Spanish people. The examination of the evolution of this phenomenon during this historical period has shown that it can be divided into four major stages. The early stage (XV–XVII centuries) is characterized by positive trends, while in the following period (XVII–XIX centuries) the tradition was interrupted by the expulsion of Spanish Muslims from the areas of their historical residency. The tradition of translations was reborn in the nineteenth and twentieth centuries, in the context of the renaissance of the Muslim community in Spain. As a result of these processes, today, in the twenty- first century, the tradition of translation of the Qur’an into Spanish constitutes an integral part of the spiritual life of Spain, strongly contributing to a successful and genuine inter- religious dialogue and cooperation.
The Hindu Nationalism and Religious Minorities: The Evolution of Political Cooperation Between BJP and Indian Muslim Community
Authors: Spektor I. B.
Published: May 2021

The article analyzes the transformation of the policy of the ruling Bharatiya Janata Party (BJP) in India towards religious minorities. The evolution of the attitude of Hindu nationalists towards Muslims is investigated — from denying the right of Muslim political representation to the intention to demonstrate the multiconfessional nature BJP. Special attention is given to the motives that induce a significant minority of Muslims to vote for the party, many of whose leaders at various times were noted for Islamophobic statements. The case of cooperation between BJP and Indian Shi‘a community is being considered separately. The final part of the article is devoted to the situation after 2014 Indian general election. There is a number of issues that directly affect the interests of the Muslim community and require a reaction from Muslims within BJP — the abolition of the special status of Jammu and Kashmir, The Citizenship (Amendment) Act, 2019 and the decision on the Ayodhya dispute. The conclusion is dedicated to the prospects of the relations between Indian Muslims and the ruling party.
Sh. Marjani’s “Wafi yat al-’Aslaf” as a Monument of Arabo-Islamic Culture
Authors: Yuzeev A. N.
Published: May 2021

Sh. Marjani’s seven- volume handwritten work “Wafi yat al-aslaf” is an encyclopedic dictionary devoted to the 6057 famous Muslim scholars, writers, philosophers, dignitaries, rulers etc. since the 7th century B. C. Marjani himself considered “Wafi yat al-aslaf” as his main work. The text is nothing but compilation, while the most scholarly interesting content concerns the Turkic world of the 17–19th centuries (Volga- Ural Region, Central Asia, Caucasus, Crimea). The original treatment of rich material of Muslim culture as well as author’s assessment of certain historical facts and events demonstrate, Marjani is not only a highly educated theologian, but also an erudite and talented scholar and enlightener. The academic value of the encyclopedia consists in its ability to shed light on the Marjani’s worldview, which is manifested in his selection of historical fi gures and in mode of description of their life and works.
Designing locally maximally entangled quantum states with arbitrary local symmetries
Authors: Słowik Oskar , Sawicki Adam , Maciążek Tomasz
Published: May 2021

One of the key ingredients of many LOCC protocols in quantum information is a multiparticle (locally) maximally entangled quantum state, aka a critical state, that possesses local symmetries. We show how to design critical states with arbitrarily large local unitary symmetry. We explain that such states can be realised in a quantum system of distinguishable traps with bosons or fermions occupying a finite number of modes. Then, local symmetries of the designed quantum state are equal to the unitary group of local mode operations acting diagonally on all traps. Therefore, such a group of symmetries is naturally protected against errors that occur in a physical realisation of mode operators. We also link our results with the existence of so-called strictly semistable states with particular asymptotic diagonal symmetries. Our main technical result states that the Nth tensor power of any irreducible representation of SU(N) contains a copy of the trivial representation. This is established via a direct combinatorial analysis of Littlewood-Richardson rules utilising certain combinatorial objects which we call telescopes.
VIOLÊNCIA E EDUCAÇÃO EM ANGRA DOS REIS/RJ
Authors: Guigues Ana Luiza
Published: May 2021

O presente artigo visa abordar o aumento da violência urbana no município de Angra dos Reis/RJ, além de sua dispersão geográfica pelos bairros da cidade e os impactos da mesma na educação do município. Nesse sentido, a violência aqui abordada será aquela referente ao tráfico de drogas e às formas de crime que dele decorrem, uma vez que tal fenômeno, nos últimos dez anos, apresentou um forte crescimento na região e se mostra como a maior expressão de violência na cidade em detrimento de outras. O fenômeno, no entanto, não se expressa de maneira uniforme na geografia da cidade, bem como seus impactos nas escolas do município e no cotidiano dos moradores.  Nesse contexto, através de consultas à, principalmente, dados estatísticos disponíveis no Instituto de Segurança Pública do Rio de Janeiro e à pesquisa do Projeto de Extensão do IEAR/UFF DIAGNÓSTICO DE SEGURANÇA PÚBLICA E SOCIAL DO MUNICÍPIO DE ANGRA DOS REIS, pôde-se comprovar essa desigual distribuição geográfica dos crimes, concentrados majoritariamente em áreas mais pobres da cidade e assim, atingido com maior intensidade as escolas e cidadãos localizados no entorno destas.
Impact of different drying methods on nutritional quality of Garcinia cowa and Garcinia pedunculata fruits
Authors:   Department of Food Science and Technology, Assam Agricultural University, Jorhat-785 013, India, Sagolsem I. , Rathi S. ,   Department of Biochemistry and Agricultural Chemistry, Assam Agricultural University, Jorhat-785 013, India, Baishya S. ,   Department of Biochemistry and Agricultural Chemistry, Assam Agricultural University, Jorhat-785 013, India
Published: May 2021

Aim: The present study was undertaken to establish a suitable drying process for Garcinia cowa and Garcinia pedunculata fruits for maximum retention of their nutritional qualities. Methodology: Slices of three different thickness with 0.3, 0.6, 0.9 cm of G. cowa and G. pedunculata fruits were dried by sun drying, solar drying and by cabinet drying at three different temperatures (50°C, 70°C and 90°C). Results: The mean crude fat and ash content were higher in G. cowa than G. pedunculata while later was found rich in crude protein and Fe contents. Total phenol content ranged between 881.31-888.65 and 719.00-736.74 mg gallic acid equivalent 100 g-1, total flavonoid content between 89.21-90.06 and 51.00-52.54 mg quercetin equivalent 100 g-1 and mean HCA contents ranged between 3.13-3.92% and 1.84-1.99% for G. cowa and G. pedunculata, respectively. The methanolic extracts exhibited significant antioxidant activity. With lower IC50 values, G. cowa had higher antioxidant activity than G. pedunculata. Interpretation: Oven drying at 50°C and 0.9 cm slice thickness for drying resulted in better retention of total phenolic and flavonoid contents with better antioxidant activities.
Host suitability and differential performance parameters of cotton mealybug, Phenacoccus solenopsis for resistance in fibre crop, kenaf genotypes
Authors:   Division of Crop Protection, ICAR-Central Research Institute for Jute and Allied Fibers, Barrackpore-700 121, India, Satpathy S. , Gotyal B.S. ,   Division of Crop Protection, ICAR-Central Research Institute for Jute and Allied Fibers, Barrackpore-700 121, India, Alam N.M. ,   AINPNF Section, ICAR-Central Research Institute for Jute and Allied Fibers, Barrackpore-700 121, India, Ramesh Babu V. ,   Division of Crop Protection, ICAR-Central Research Institute for Jute and Allied Fibers, Barrackpore-700 121, India
Published: May 2021

Aim: To enumerate resistance in Kenaf (fibre crop) genotypes with distinct host suitability, biological performance and growth parameters of mealybug, Phenacoccus solenopsis Tinsley. Methodology: Laboratory and glasshouse experiments were conducted to assess the host suitability and resistance of genotypes on the basis of relative colonization, growth and survival in terms of establishment rate and nymphal duration of mealybug. Results: The wild accession, WHIJ 50 belonging to Hibiscus spp. and the variety JRM 3 of H. cannabinus recorded significantly lowest female establishment rate, instantaneous population increase, nymphal survival and growth index with longer nymphal duration possessing possible antixenosis- and antibiosis- mediated resistance. On the other extreme the susceptible genotype, WHIN 47 (H. acetocella) proved favourable for crawler developmental parameters. Interpretation: The level, mechanism and basis of resistance in kenaf enumerated from this study may pave the way for creating vigorous kenaf hybrids resistant to cotton mealybug.
Determination of antifungal efficiency of some fungicides and secondary metabolites of Trichoderma species against Botrytis cinerea
Authors:   Plant Health Department, Viticulture Research Institute, Ministry of Agriculture and Forestry, Number: 168, 45125, Manisa / Turkey, Savas N.G. , Yıldız M. ,   Plant Health Department, Viticulture Research Institute, Ministry of Agriculture and Forestry, Number: 168, 45125, Manisa / Turkey, Eltem R. ,   Department of Bioengineering, Faculty of Engineering, Ege University, Number:180, 35040, İzmir/ Turkey, Ozkale E. ,   Department of Biology, Faculty of Arts and Sciences, Manisa Celal Bayar University, 45140, Manisa/Turkey
Published: May 2021

Aim: The present study aimed to investigate the antifungal effects of fenhexamid, cyprodinil+fludioxanil, Bacillus subtilis QST 713, Trichoderma secondary metabolites (EGE-K-38 and EGE-K-71) on 6 isolates of necrotrophic fungi (Botrytis cinerea) under in- vitro conditions. Methodology: A dual culture technique was used to evaluate the effects of volatile compounds produced by Trichoderma in culture media against Botrytis cinerea isolates. For non-volatile and volatile metabolites, measurements for growth inhibition were made with the mixture of filter sterilized liquid medium of Trichoderma and potato dextrose agar. The fungicidal effects of these non-volatile metabolites and fungicides were first evaluated according to the effective concentration (EC50) data of growing mycelium inhibition of disease agents. Results: According to the results obtained, the drug/agent with the lowest fungicidal activity was determined as fenhexamide, which seems to have the lowest EC50 value of 0.05 ug m l-1. Both non-volatile metabolites and volatile metabolites of Trichoderma strains showed strong inhibition against B. cinerea isolates under experimental conditions. The highest growth inhibition percentage was determined with volatile metabolites of Trihoderma atroviride EGE-K-71 strain as 71.8%. Interpretation: The study suggest that filtrates that contain secondary metabolites and volatile compounds of Trichoderma strains produced in both liquid culture and dual culture conditions can be used as an effective fungal control agents against pre and postharvest contamination of grapes with Botrytis cinerea.
An insight into the sequential changes in enzymatic activities during retting of jute (Corchorus spp. L.).
Authors:   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India, Majumdar B. , Saha A.R. ,   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India, Sarkar S. ,   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India, Sarkar S.K. ,   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India, Mazumdar S.P. ,   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India, Chattopadhyay L. ,   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India, Barai S. ,   Division of Crop Production, ICAR-Central Research Institute for Jute & Allied Fibres, Kolkata-700 120, India
Published: May 2021

Aim: To study the dynamics of enzymes involved in biochemical process of jute (Corchorus spp.) retting with and without microbial retting consortium. Methodology: Two large scale retting trials were conducted with and without microbial retting consortium in triplicate. The retting water samples were collected every day at 24 hrs interval from both the trials. Polygalcturonase (PG), pectin lyase (PNL) and xylanase activities along with the pH were measured from the collected retting water samples following standard procedure. Fibre quality parameters were also studied from the resultant fibre obtained from both the retting trials. Results: There was a sharp decrease in pH of retting liquor by 1.35 units and that of pectin lyase activity by 97.9 Uml-1 within 24 hrs of inoculation of microbial retting consortium. Thereafter, higher pectin lyase (123.1 Uml-1), polygalacturonase (3.56 Iuml-1) and xylanase (0.818 IUml-1) activities were recorded during middle stage of retting. The enzyme activities were lower and non-significant at last stage of retting (11-14 days). The completion of retting without microbial consortium took longer time due to lower enzymatic activities as compared to microbial consortium mediated retting. Interpretation: The PG, PNL and xylanase enzymes released by the microbial consortium during retting of jute helped in faster biodegradation of pectin and xylan compared to control retting. Hence, the pre retting treatment of jute with microbial consortium is suggested for quick retting.
Quercetin mediated inhibition of Staphylococcus aureus biofilms and the impact of the isolate phenotype and genotype
Authors:   Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt, Eldrehmy E.H. , Abdel-Hafez S.M. ,   Animal Reproduction Research Institute, Immunobiology and Immunopharmacology Unit, Giza,11211, Egypt, Alghamdi Y.S. ,   Department of Biology, Turabah University College, Taif University, 21995, Saudi Arabia, Soliman M.M. ,   Cinical Laboratories Sciences, Turabah University College, Taif University, Turabah, 21995, KSA, Alotaibi S.H. ,   Chemistry Department, Turabah University College, Turabah 29541, Taif University, Saudi Arabia, Alkhedaide A. ,   Animal Reproduction Research Institute, Immunobiology and Immunopharmacology Unit, Giza,11211, Egypt, Hassan M.Y. ,   Animal Reproduction Research Institute, Immunobiology and Immunopharmacology Unit, Giza,11211, Egypt, Amer H.H. ,   Animal Medicine and Infectious Diseases Department, Faculty of Veterinary Medicine, University of Sadat City, 32897, Egypt, Alqadri Nada ,   Department of Biology, Turabah University College, Taif University, 21995, Saudi Arabia
Published: May 2021

Aim: This study was designed to assess the antibiofilm activity of quercetin on characterized S. aureus isolates. Methodology: This study evaluated 36 S. aureus isolates, each of which was identified using Gram staining, culture, biochemical, and PCR assays. Isolates were cultured and their biofilm production was evaluated using Congo red agar (CRA) plates, microtiter plate tests and PCR, and the effects of quercetin were examined. Results: The CRA results revealed that eight (22.3%) S. aureus isolates were strongly positive for biofilm production and an additional 18 isolates (50%) showed moderate biofilm capacity. The remaining 10 isolates were negative (27.7%) for biofilm production. S. aureus isolates were divided into strong positive, intermediate, and negative groups, 27.8%, 44.5%, and 27.7%, respectively. Scanning electron microscopy showed that the biofilm-producing isolates appeared as aggregates of cells within a heavy matrix. In addition, PCR assay identified IcaA and IcaD (66.6% for both) biofilm production genes in most isolates and IcaC (61.1%), IcaB, FnbB (33.3% for both), and Fib (22.2%) in several other strains. Quercetin significantly inhibited biofilm activity in biofilm producing S. aureus isolates in a dose-dependent manner, with an inhibition rate of 29.6-87.7%. Interpretation: Biofilm production is dependent on Ica gene phenotype and strains with an IcaABCD or IcaABD phenotype produce more biofilm than strains with IcaAD phenotype. Quercetin significantly inhibited S. aureus biofilm production, irrespective of Ica phenotype.
Analisis Performansi Routing OSPF menggunakan RYU Controller dan POX Controller pada Software Defined Networking
Authors: Iryani Nanda , Ramadhani Afifah Dwi , Sari Mayang Karmila
Published: May 2021

Software Defined Networking (SDN) adalah teknologi baru yang dikembangkan untuk mengatasi masalah kompleksitas konfigurasi jaringan dengan pengelolaan lebih terpusat karena memisahkan antara control plane dan data plane. Penelitian ini menganalisis perbandingan performansi SDN menggunakan ryu controller dan pox controller. Protocol yang digunakan adalah protocol TCP dan UDP sedangkan routingnya menggunakan OSPF. Penerapan algoritma dijkstra dari perutean OSPF ke topologi fat tree pada SDN akan diukur unjuk kerjanya berdasarkan parameter Quality of Service yaitu delay, jitter, dan packet loss pada skenario tanpa background traffic. Transmisi data menggunakan traffic protocol TCP dengan RYU controller dan protokol UDP lebih baik karena memiliki delay sebesar 49.44% dan delay yang lebih stabil sebesar 0.01 %. Jitter yang dihasilkan adalah 27.59% lebih baik daripada POX controller sebesar 72.41% dan untuk protokol UDP menggunakan POX controller 99.97% sedangkan traffic protocol UDP menggunakan RYU controller lebih baik sebesar 0.03%. Packet loss dari kedua controller didapatkan hasil protokol TCP sangat bagus sebesar 0% sedangkan protokol UDP menggunakan POX controller 83.13%, menggunakan RYU controller 16.87%.
Perancangan Antena Diplexing Menggunakan Metode Half Mode SIW dengan Metode Cavity Back Slot Sebagai Matching Impedansi
Authors: Astuti Dian Widi , Putri Melinda Megahari , Rusdiyanto Dian
Published: May 2021

Penggunaan teknologi dinas tetap (fixed-services) bertujuan untuk memenuhi kebutuhan masyarakat akan teknologi telekomunikasi nirkabel. Pada perkembangannya muncul tantangan untuk meningkatkan performa dan efisiensi perangkat teknologi seperti penggunaan lebih dari satu frekuensi dalam satu device. Penelitian ini mendukung tantangan tersebut dengan membuat antena yang dapat bekerja untuk dua resonansi frekuensi (diplexing). Metode yang digunakan untuk mendesain antena diplexing tersebut yaitu Half Mode Substrate Integrated Waveguide (HMSIW) Cavity Backed Slot Antenna (CBSA). Metode CBSA mempunyai kemampuan untuk mencapai matching impedansi dengan mengatur inset-feed dan rectangular slot. Hasil simulasi menunjukan antena dapat bekerja pada frekuensi tengah (fC) 4,5 dan 5,8 GHz.  Nilai S11 dan S22 simulasi masing-masing memperoleh -30 dB dan -16,86 dB, serta nilai S12 dan S21 masing-masing -27 dB dan -26 dB. Sedangkan hasil pengukuran menunjukan antena bekerja pada frekuensi tengah (fC) 4,25 dan 5,67 GHz, dengan nilai S11 dan S22 masing-masing -33,10 dB dan -23,27 dB, serta nilai S12 dan S21 masing-masing -30 dB dan -29,6 dB. Hasil simulasi telah sesuai dengan spesifikasi yang diinginkan. Perbedaan dengan hasil pengukuran dapat disebabkan karena faktor pabrikasi, penyolderan dan proses etching.
Mudanças na organização escolar e formação docente continuada em um município do interior paulista
Authors: Guarda Vanessa Moraes Abdala , Barbosa Andreza , Cunha Renata Cristina Oliveira Barrichelo
Published: May 2021

O artigo problematiza as ações de formação docente continuada de uma rede municipal de educação no cenário das reformas educacionais implementadas no Brasil a partir dos anos 1990 que acabaram por alterar profundamente a organização escolar. Com base em pesquisa que buscou compreender como são desenvolvidas as ações de formação continuada nas escolas municipais de ensino fundamental de um município do interior paulista, destaca-se que a organização escolar vem sendo modificada por meio de reformas pensadas de forma externa à escola e que modificam o currículo que se pratica em sala de aula, as metodologias, os processos de avaliação e que têm na formação docente um elemento estratégico para promover essas mudanças. Neste sentido, destaca-se na pesquisa a centralidade que a formação promovida pelo Programa Ler e Escrever assumiu no cotidiano das escolas da rede em questão, modificando toda a sua organização, constituindo-se como instrumento de padronização do trabalho docente.
Siklisasi Sitronelal Menggunakan Polimer Penyangga Katalis H2SO4 Berbahan Dasar Eugenol
Authors: Saputra Moh. Rifki , Rahim Erwin Abdul , Sosidi Husain , Sumarni Ni Ketut
Published: May 2021

Research on citronellal cyclization using a polymer based on eugenol supported H2SO4 catalyst has been carried out. The study aim was to determine the ratio of the addition of polymer based-eugenol supported H2SO4 catalyst used to produce the highest isopulegol. Citronellal cyclization was carried out using variations of catalyst concentration (1, 2, 3, 4, and 5%) and reaction time (30, 60, and 90 minutes). The results have obtained a yield of 50.67% found in the catalyst concentration of 1% and 90 minutes reflux time. From the results of GC-MS analysis, 29 compounds were read and among them isopulegol which was read at retention time 19.703 at peak 9 and peak area 4.76%. And the isopulegol results obtained are 11.34%.
Identifikasi dan Purifikasi Vitelogenin Arwana Asia: Banjar, Pinoh (Scleropages macrocephalus), Papua (Scleropages jardinii) dan Super Red (Scleropages legendrei)
Authors: Said Ahmad Musa , Dugue Remi , Rina Hirnawati  , Nur Bastiar , Rendy Ginanjar  , Sawung Cindelaras  , Slamet Sugito
Published: May 2021

Arowana fish (Scleropages sp.) are monomorphic species, those animals that physically could not be distinguished between male and female. The research was aimed to identify and purify Vitellogenin of four variants of Asian Arowana: Banjar, Papua, Pinoh, and Super red. 12 fishes, 3 from each variant were given estradiol stimulation through toad for vitellogenin production purpose. The SDS-PAGE results expressed that there were two types of Asian Arowana vitellogenin characters, single Vtg for Arowana Banjar, Pinoh (Scleropages macrocephalus) and Super Red (Scleropages legendrei) with a molecular weight of 180 kDa and double Vtg in Papuan Arowana (Scleropages jardinii) with molecular weight 180 and 110 kDa. Pure vitellogenin has been collected from 3 varieties, Banjar, Papua, and Super red with a concentration range between 0.1 - 0.67 mg / mL. The actual concentration is believed to be greater than the measured concentration.
Penentuan Aktivitas Antioksidan dan Kandungan Flavonoid Total Ekstrak Daun Papasan (Coccinia grandis L.) Berdasarkan Perbedaan Pelarut Polar
Authors: Sari Meliani , Ulfa Rani Nareza , Marpaung Mauritz Pandapotan , Purnama
Published: May 2021

Papasan leaves have several properties, including antihyperglycemic, diabetes, antipyretic and antioxidant. Minor metabolite compounds that have the potential as antioxidants from this plant are flavonoids, alkaloids, saponins, and tannins. This study's purpose to determine the antioxidant activity and the flavonoid total contents of Papasan (Coccinia grandis L.) leaf extract based on the differences in polar solvents. The polar solvents used were ethanol, methanol, and water. Extraction used by maceration and dekokta. The antioxidant activity and the flavonoid total contents were established by UV-Vis spectrophotometry according to the decrease in absorbance at a maximum wavelength of 515 nm by the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. Determination of antioxidant activity and the flavonoid total contents were excluded on quercetin comparisons. The values of  IC50 and the flavonoid total contents in the ethanol extract respectively were 287.92 ppm and 49.825 mg QE/g while the IC50 values and total flavonoid levels in the extract of methanol were 73.29 ppm and 50.415 mg QE/g. In the extract of the water, the value of IC50 was 39.80 ppm and the total flavonoid contents were 50.415 mg QE/g. The conclusions of these studies were that the most antioxidant activity was found in water extract, while water and methanol extract had the same and highest levels of total flavonoids.
Kajian Pustaka Karakterisasi Perekat Polivinil Asetat Berbasis Air dengan Variabel Surfaktan
Authors: Sihombing Rony Pasonang , Fathiyyah Dieni Nurul , Kumara Nanda Liant , Ngatin Agustinus
Published: May 2021

Polyvinyl acetate (PVAc) is an applicative polymer used as an adhesive material for one to another. These polymers can be synthesized through an emulsion polymerization process. In the industrial world, the process of making adhesive still involves environmentally unfriendly organic compounds containing xylene, benzene, and toluene. Therefore, water-based adhesive was introduced as an alternative to the PVAc synthesis solution. The aim of this literature review is to identify the type of surfactants used and analyze the PVAc characterization. This literature study focuses on the characterization of water-based PVAc with non-ionic nonylphenol (NP) surfactants including: NP-06, NP-10, NP 10 + 30, NP-30 and NP-40. Another surfactant used in this literature study is anionic surfactant Sodium Lauryl Sulfate (SLS) in units of Critical Micelle Concentration (CMC) including 1 CMC, 3 CMC, 5 CMC, 10 CMC, and 15 CMC. The result is a similarity in phenomena between the two types of surfactants. There is an increase in viscosity and a decrease in the value of the particle size as the surfactant increasing concentration used. However, in terms of the particle size, there is an optimal value where the specific NP surfactant concentration produces specific particle size with grit and at the specific SLS surfactant concentration produces relatively similar particle size.
Low-value injury admissions in an integrated Canadian trauma system: a multicenter cohort study
Authors: Gagnon Marc-Aurèle , Bérubé Mélanie , Mercier Éric , Yanchar Natalie , Cameron Peter , Stelfox Henry T. , Gabbe Belinda , Bourgeois Gilles , Lauzier François , Turgeon Alexis , Belcaid Amina , Moore Lynne
Published: May 2021

Background: Injury represents 260,000 hospitalisations and $27 billion
in healthcare costs each year in Canada. Evidence suggests that there is
significant variation in the prevalence of hospital admissions among ED
presentations between countries and providers but we lack data specific
to injury admissions. We aimed to estimate the prevalence of potentially
low-value injury admissions following injury in a Canadian provincial
trauma system, identify diagnostic groups contributing most to low-value
admissions and assess inter-hospital variation. Methods: We conducted a
retrospective multicenter cohort study based on all injury admissions in
the Québec trauma system (2013-2018). Using literature and expert
consultation, we developed criteria to identify potentially low-value
injury admissions. We used a multilevel logistic regression model to
evaluate inter-hospital variation in the prevalence of low-value injury
admissions with intraclass correlation coefficients (ICC). We stratified
our analyses by age (1-15; 16-64; 65-74; 75+ years). Results: The
prevalence of low-value injury admissions was 16% (n=19,163) among all
patients, 26% (2136) in children, 11% (4695) in young adults and 19%
(12,345) in older adults. Diagnostic groups contributing most to
low-value admissions were mild traumatic brain injury in children (48%
of low-value pediatric injury admissions; n=922), superficial injuries
(14%, n=660) or minor spinal injuries (14%, n=634) in adults aged
16-64, and superficial injuries in adults aged 65+ (22%, n=2771). We
observed strong inter-hospital variation in the prevalence of low-value
injury admissions (ICC=37%). Conclusion: One out of six hospital
admissions following injury may be of low-value. Children with mild
traumatic brain injury and adults with superficial injuries could be
good targets for future research efforts seeking to reduce health care
services overuse. Inter-hospital variation indicates there may be an
opportunity to reduce low-value injury admissions with appropriate
interventions targeting modifications in care processes.
Predicting range shifts of Davidia involucrata Ball. under future climate change
Authors: Long Teng , Tang Junfeng , Pilfold Nicholas , Zhao Xuzhe , Dong Tingfa
Published: May 2021

Understanding and predicting how species will response to future climate
change is crucial for biodiversity conservation. Here, we conducted an
assessment of future climate change impacts on the distribution of D.
involucrate in China, using the most recent global circulation models
developed in the sixth Assessment Report of the Intergovernmental Panel
on Climate Change (IPCC6). We assessed the potential range shifts in
this species by using an ensemble of species distribution models (SDMs).
The ensemble SDMs exhibited high predictive ability and suggested that
the temperature annual range, annual mean temperature, and precipitation
of the driest month are the most influential predictors in shaping
distribution patterns of this species. The projections of the ensemble
SDMs also suggested that D. involucrate is very vulnerable to future
climate change, with at least one-third of its suitable range expected
to be lost in all future climate change scenarios and will shift to the
northward of high-latitude regions. These findings suggest that it is of
great urgent and significance to adaptive management strategies to
mitigate the impacts of climate change on D. involucrate.
Effectiveness of Kinesiotaping in Pregnant Women with Sacroiliac Joint Pain: A Randomized Controlled Study
Authors: ordahan banu , Horasanlı Jule Eriç
Published: May 2021

Aim Sacroiliac joint dysfunction is an especially common cause of pain
during pregnancy. Treatment options during pregnancy are very limited in
order to reduce pain and increase the quality of life. We aimed to
determine the efficacy of kinesiotaping (KT) in the treatment of
sacroiliac joint pain in pregnant women. Methods A total of 50 pregnant
women with sacroiliac joint pain were included in the study. Patients
were randomized into two groups as KT and sham KT groups. Women in the
KT group underwent a total of five weeks of KT once per week; the sham
KT group also underwent five weeks of KT applications, but without
tension in the kinesiotape. Patients were assessed before and five weeks
after the treatment with a visual analogue scale (VAS) for pain and the
Roland-Morris Disability Questionnaire (RMDQ) and Pelvic Girdle
Questionnaire (PGQ) for disability and quality of life. Results The KT
and sham KT groups were similar in terms of age, parity, gravidas,
gestational week, and body mass index. At the beginning of the study,
there were no statistically significant differences between the two
groups in their VAS, RMDQ, or PGQ scores. Five weeks later, the KT group
showed significant improvement in all parameters, but no significant
differences were observed for the sham KT group in terms of VAS, RMDQ,
or PGQ. Conclusions KT treatment improved the pain levels, functioning,
and quality of life among pregnant women with sacroiliac joint pain.
Keywords Sacroiliac joint pain; Pregnancy; Kinesiotaping
Statistical Solutions for a Nonautonomous Modified Swift-Hohenberg Equation
Authors: Wang Jintao , Zhang Xiaoqian , Zhao Caidi
Published: May 2021

We consider the nonautonomous modified Swift-Hohenberg equation
$$u_t+\Delta^2u+2\Delta
u+au+b|\nabla u|^2+u^3=g(t,x)$$
on a bounded smooth domain
$\Omega\subset\R^n$
with $n\leqslant 3$. We show that, if
$|b|<4$ and the external force $g$
satisfies some appropriate assumption, then the associated process has a
unique pullback attractor in the Sobolev space
$H_0^2(\Omega)$. Based on this existence, we
further prove the existence of a family of invariant Borel probability
measures and a statistical solution for this equation.
Kinetics of Asian and African Zika Virus Lineages over Single-cycle and Multi-cycle Growth in Culture: gene expression, cell killing, virus production, and mathematical modeling
Authors: Shi Huicheng , Yin John
Published: May 2021

Since 2014, an Asian lineage of Zika virus has caused outbreaks, and it
has been associated with neurological disorders in adults and congenital
defects in newborns. The resulting threat of the Zika virus to human
health has prompted the development of new vaccines, which have yet to
be approved for human use. Vaccines based on the attenuated or
chemically inactivated virus will require large-scale production of the
intact virus to meet potential global demands. Intact viruses are
produced by infecting cultures of susceptible cells, a dynamic process
that spans from hours to days and has yet to be optimized. Here, we
infected Vero cells adhesively cultured in well-plates with two Zika
virus strains: a recently isolated strain from the Asian lineage, and a
cell-culture-adapted strain from the African lineage. At different time
points post-infection, virus particles in the supernatant were
quantified; further, microscopy images were used to quantify cell
density and the proportion of cells expressing viral protein. These
measurements were performed across multiple replicate samples of
one-step infections every four hours over 60 hours and for multi-step
infections every four to 24 hours over 144 hours, generating a rich
dataset. For each set of data, mathematical models were developed to
estimate parameters associated with cell infection and virus production.
The African-lineage strain was found to produce a 14-fold higher yield
than the Asian-lineage strain in one-step growth and a 7-fold higher
titer in multi-step growth, suggesting a benefit of cell-culture
adaptation for developing a vaccine strain. We found that image-based
measurements were critical for discriminating among different models,
and different parameters for the two strains could account for the
experimentally observed differences. An exponential-distributed delay
model performed best in accounting for multi-step infection of the Asian
strain, and it highlighted the significant sensitivity of virus titer to
the rate of viral degradation, with implications for optimization of
vaccine production. More broadly, this work highlights how image-based
measurements can contribute to discrimination of virus-culture models
for the optimal production of inactivated and attenuated whole-virus
vaccines.
NEUROCIÊNCIA E EDUCAÇÃO: ESTRATÉGIAS MULTISSENSORIAIS PARA A APRENDIZAGEM DE GEOMETRIA MOLECULAR
Authors: Silva Kleyfton Soares da , Fonseca Laerte Silva da
Published: May 2021

Discussões acerca de técnicas e métodos adequados para o ensino de química têm desvelado a potencialidade do uso de recursos alternativos e/ou tecnológicos como mediadores da aprendizagem de conceitos científicos. Nesse sentido, interessa-nos saber que alternativa metodológica pode permitir a aprendizagem de noções de química a partir de recursos de visualização de moléculas tridimensionais. O objetivo desta pesquisa foi investigar os efeitos de recursos pedagógicos, como modelos moleculares físicos alternativos e virtuais (realidade aumentada), na aprendizagem de noções de geometria molecular. Esta investigação, de cunho qualitativo e experimental, foi conduzida de modo a subsidiar o planejamento, elaboração, implementação e análise de uma sequência didática fundamentada em princípios neurocognitivos associados à “memória”. Uma intervenção didática foi desenhada para três momentos, com intervalo de quinze dias entre uma sessão e outra. Participaram das atividades nove estudantes voluntários de 16-17 anos de idade, do 2º ano do Ensino Médio de uma escola particular do Estado de Sergipe. Os resultados revelaram que: 1) Recursos físicos e virtuais podem favorecer a aprendizagem das noções de geometria molecular e podem servir como técnicas de avaliação dos erros dos alunos; 2) Procedimentos metodológicos que levam em consideração o funcionamento cerebral e o uso dos órgãos dos sentidos facilitam a consolidação e evocação da memória de longo prazo.
PENSAMENTO CRÍTICO NO ENSINO DE CIÊNCIAS E EDUCAÇÃO MATEMÁTICA: UMA REVISÃO BIBLIOGRÁFICA SISTEMÁTICA
Authors: Costa Sandro Lucas Reis , Bortoloci Naiara Briega , Broietti Fabiele Cristiane Dias , Vieira Rui Marques , Tenreiro-Vieira Celina
Published: May 2021

O presente estudo analisa artigos sobre o pensamento crítico no Ensino de Ciências e Educação Matemática, assim como identifica os contextos de pesquisa em que o pensamento crítico se faz presente. Os procedimentos analíticos foram realizados a partir das etapas de uma revisão sistemática, descritas por Okoli (2015). Mediante um inventário identificou-se as características das publicações, e estabeleceram-se categorias relacionadas: às referências apresentadas nos artigos; às definições de pensamento crítico; e aos contextos de pesquisa. Os resultados evidenciaram: reduzido número de artigos envolvendo a temática (22 artigos); 8 artigos (36%) que mencionaram o termo pensamento crítico sem referenciar autores que discutem tal temática; e que, 13 artigos (59%) não apresentaram definições para o termo pensamento crítico. Com relação aos contextos de pesquisa, 13 artigos (59%) relataram que certas abordagens de ensino podem promover o pensamento crítico, sem entrar em discussões acerca de como ou porque esses processos ocorrem. Em relação às conclusões, destacam-se: a predominância em utilizar, unicamente, métodos qualitativos para avaliar o pensamento crítico e a necessidade de mais pesquisas que utilizam medidas em combinação com instrumentos qualitativos e quantitativos; a tendência dominante (20 artigos, 91%) em estudar a relação entre pensamento crítico e propostas de ensino e a necessidade de pesquisas que investigam outros contextos (currículo, percepções de licenciandos e professores, e avaliação); e a escassez de estudos sobre pensamento crítico no Ensino de Ciências no contexto nacional, apontando a necessidade do desenvolvimento dessa linha de pesquisa nacionalmente.
CIÊNCIA E RELIGIÃO: UM MAPEAMENTO DE ARTIGOS NACIONAIS QUE ABORDAM A RELAÇÃO ENTRE ESSES CAMPOS
Authors: Peixoto Cintia Terezinha Barbosa , Harres João Batista Siqueira
Published: May 2021

O estudo das relações existentes entre Religião e o ensino de Ciências pode promover relações de cooperação, respeito e aceitação entre os diferentes sujeitos que compõe a cultura escolar. Assim, este artigo apresenta uma análise de trabalhos publicados em revistas e em anais de eventos da área de Educação em Ciências ou Educação no país a respeito das relações entre Ciência e Religião entre os anos de 2000 e 2019. O objetivo foi identificar nos trabalhos analisados, seja pela argumentação dos próprios autores, seja pelos investigados alguns indicadores de relação entre Ciência e Religião. São apresentados os dados mais relevantes apurados e a identificação, quando possível, da perspectiva envolvida acerca dessas relações seguindo a classificação de Barbour (2004). A abordagem metodológica para a coleta e análise dos trabalhos apoia-se nas ideias de Biembengut (2008). Em relação aos resultados, destaca-se que mais da metade das pesquisas apresentam um panorama acerca das relações entre Ciência e Religião apontando um diagnóstico de como estudantes e/ou professores lidam com essa temática. As demais se dividem em dois tipos: as que apresentaram propostas de ensino e as que apresentaram estudos bibliográficos sobre o tema. A perspectiva de independência ou de diálogo foi predominante entre os autores analisados. Uma das principais sugestões apontadas nas pesquisas foi que a abordagem de conhecimentos científicos deve ser feita respeitando os pontos de vista advindos da Religião ou da cultura do estudante.
Pancreatic Pseudoislets: An Organoid Archetype for Metabolism Research
Authors: Friedlander Mollie S.H. , Nguyen Vy M. , Kim Seung K. , Bevacqua Romina J.
Published: May 2021

Pancreatic islets are vital endocrine regulators of systemic metabolism, and recent investigations have increasingly focused on understanding human islet biology. Studies of isolated human islets have advanced understanding of the development, function, and regulation of cells comprising islets, especially pancreatic α- and β-cells. However, the multicellularity of the intact islet has stymied specific experimental approaches—particularly in genetics and cell signaling interrogation. This barrier has been circumvented by the observation that islet cells can survive dispersion and reaggregate to form “pseudoislets,” organoids that retain crucial physiological functions, including regulated insulin and glucagon secretion. Recently, exciting advances in the use of pseudoislets for genetics, genomics, islet cell transplantation, and studies of intraislet signaling and islet cell interactions have been reported by investigators worldwide. Here we review molecular and cellular mechanisms thought to promote islet cell reaggregation, summarize methods that optimize pseudoislet development, and detail recent insights about human islet biology from genetic and transplantation-based pseudoislet experiments. Owing to robust, international programs for procuring primary human pancreata, pseudoislets should serve as both a durable paradigm for primary organoid studies and as an engine of discovery for islet biology, diabetes, and metabolism research.