bluuebunny/crossref_metadata_2025 huggingface dataset:
Zeolitización de arcillas rojas de Ecuador y aplicación en la adsorción de CO2
Authors: López Cordova Carmen Milena , Castillo Jessica Maribel , Riofrio Valarezo Lynda Jessenia , García Berfon Luis Vicente , Jaramillo Fierro Ximena Verónica , García López Adriana Lucía
Published: January 2021

Se realizó la síntesis de zeolita LTA a partir de arcillas de Ecuador, empleando el método de fusión alcalina, y posterior cristalización hidrotérmica a 90 °C. Las arcillas fueron calcinadas con NaOH variando el tiempo y temperatura de calcinación. La composición de la mezcla de síntesis y condiciones del tratamiento hidrotérmico se mantuvieron en todas las síntesis realizadas. La arcilla fue utilizada como fuente de silicio y aluminio, ajustando la composición de la mezcla con NaOH y H2O. Los sólidos fueron sometidas a una caracterización mediante Difracción de Rayos X (DRX), FRX, determinación de área específica y capacidad de adsorción de CO2 de las arcillas de partida y de las zeolitas sintetizadas. Fue posible obtener zeolita A, empleando iguales condiciones de síntesis para las tres arcillas estudiadas. El estudio de la evolución de la cristalización con el tiempo, indicó 2 h como un tiempo adecuado para obtener la zeolita. El área específica y la capacidad de adsorción de las zeolitas obtenidas a partir de las arcillas, se incrementa notablemente en comparación a las arcillas originales, sin embargo, la composición química no cambia apreciablemente.
New data on steppe vegetation of the magmatic mountains in the Northern Caucasus
Authors:   Komarov Botanical Institute of the RAS, Lysenko Tatiana , Shchukina Kseniia ,   Komarov Botanical Institute of the RAS, Dutova Zoya ,   Komarov Botanical Institute of the RAS, Liksakova Nadezhda ,   Komarov Botanical Institute of the RAS, Kessel Darya ,   Komarov Botanical Institute of the RAS, Shilnikov Dmitry ,   Komarov Botanical Institute of the RAS
Published: January 2021

Geobotanical studies were carried out in June–July 2020 in the Stavropol Territory, in the region of the Caucasian Mineral Waters, on Yutsa, Dzhutsa, Zolotoi Kurgan, Dubrovka, Byk, Verblyud and Mashuk magmatic moun-tains. Syntaxonomic analysis carried out from the standpoint of the J. Braun-Blanquet approach made it possible to establish 1 new association and 4 new subassociations - ass. Teucrio chamaedris-Stipetum pulcherrimae ass. nov. hoc loco, subass. T. ch.–S. p. typicum subass. nov. hoc loco, subass. T. ch.–S. p. iridetosum nothae subass. nov. hoc loco, subass. T. ch.–S. p. centauretosum leucophyllae subass. nov. hoc loco and subass. T. ch.–S. p. asphodelinetosum tauricae subass. nov. hoc loco. They are preliminary included in the alliance Festucion valesiacae Klika 1931 nom. conserv. propos., order Festucetalia valesiacae Soó 1947 of the class Festuco–Brometea Br.-Bl. et Tx. ex Soó 1947.
A CASE STUDY ON HOW PRIMARY-SCHOOL IN-SERVICE TEACHERS CONJECTURE AND PROVE: AN APPROACH FROM THE MATHEMATICAL COMMUNITY
Authors: Fernández-León Aurora , Gavilán-Izquierdo José María , Toscano Rocío
Published: January 2021

This paper studies how four primary-school in-service teachers develop the mathematical practices of conjecturing and proving. From the consideration of professional development as the legitimate peripheral participation in communities of practice, these teachers’ mathematical practices have been characterised by using a theoretical framework (consisting of categories of activities) that describes and explains how a research mathematician develops these two mathematical practices. This research has adopted a qualitative methodology and, in particular, a case study methodological approach. Data was collected in a working session on professional development while the four participants discussed two questions that invoked the development of the mathematical practices of conjecturing and proving. The results of this study show the significant presence of informal activities when the four participants conjecture, while few informal activities have been observed when they strive to prove a result. In addition, the use of examples (an informal activity) differs in the two practices, since examples support the conjecturing process but constitute obstacles for the proving process. Finally, the findings are contrasted with other related studies and several suggestions are presented that may be derived from this work to enhance professional development.
Indeks Maya dan Indeks Entomologi Vektor Demam Berdarah Dengue di Kabupaten Mamuju Tengah, Sulawesi Barat
Authors: Murni Murni , Nelfita Nelfita , Risti Risti , Mustafa Hasrida , Maksud Malonda
Published: January 2021

The existence of containers as a potential habitat breeding places for mosquitoes in the community can affect the population density of Aedes. The maya index is an indicator to measure the number of containers that can be a breeding places for mosquitoes. This study aims to determine maya index and entomology index in Central Mamuju Regency, West Sulawesi Province. This study was an observational study conducted in 2015 in three sub-districts (Topoyo, Tappilina, and Karossa) in Central Mamuju Regency. Data collection through structured interviews with household heads in 100 randomly selected houses using the closest house method and measuring larvae density using the single larva method. The results showed that the Breeding Risk Index (BRI) for the three sub-districts in Central Mamuju Regency are mostly in the medium category, while Hygiene Risk Index (HRI) and Maya Index (MI) are in a low category. Based on House Index (HI) and Container Index (CI) indicators means have a moderate risk of transmission Dengue.
PRINCESAS EM PLENO SÉCULO XXI? – HISTÓRIAS PARA MENINAS E MULHERES EMPODERADAS
Authors: Lopes Wilke Valéria Cristina
Published: January 2021

Os enredos de filmes de heróis ou de ação e de desenhos animados, até bem poucas décadas, privilegiavam personagens masculinas; as femininas, em geral, eram ou o motivo romântico ou a mocinha a ser resgatada. Por isso, pretende-se discutir como filmes infantis, centrados em personagens femininas fortes, oferecem modelos para as meninas se reconhecerem nas jornadas de suas personagens e motivos de aprendizado. São heroínas, fortes, decididas, que fogem ao estereótipo de princesas frágeis à espera de um príncipe que as beije e as faça feliz no The End. Elas podem ser consideradas personagens que pavimentaram, na cultura pop, o caminho para a visibilidade do chamado empoderamento das mulheres na sociedade ocidental.
O IMPACTO DO RESULTADO DA AVALIAÇÃO NA DIMENSÃO SOCIOAFETIVA DO ESTUDANTE A PARTIR DAS HISTÓRIAS EM QUADRINHOS DE CHICO BENTO
Authors: Fagundes Fabíula Campos Falcão , Weschenfelder Gelson Vanderlei
Published: January 2021

Esta pesquisa de cunho teórico, do tipo bibliográfico, tem como problemática: quais são os conteúdos difundidos nas histórias em quadrinhos do personagem Chico Bento, em relação ao impacto da avaliação na dimensão sócioafetiva do estudante? O corpus investigativo está composto por quatro tirinhas da Revista Chico Bento, disponibilizadas no Aplicativo Banca da Mônica, utilizado para os dispositivos móveis (celular). Os dados serão analisados por meio da Técnica de Análise de Conteúdo, proposta por Bardin (2016). Ao eleger como objeto analítico os conteúdos sobre avaliação difundidos pelas Histórias em Quadrinhos, tem-se presente que tais histórias são formadoras de opinião e podem influenciar as concepções das crianças leitoras, corroborando ou refutando o que as mesmas entendem e vivenciam nos processos de avaliação no contexto escolar. Os resultados demonstram como a avaliação da aprendizagem aplicada de forma equivocada causa impacto na dimensão socioafetiva do estudante. O referencial teórico do estudo está alicerçado nos pressupostos sobre avaliação de autores tais como Hoffmann (1995), Esteban (2009), Vasconcellos (2008), Luckesi (2010) e Moretto (2010). Com relação às Histórias em Quadrinhos, buscamos aportes nos pressupostos de Moya (1977) e Weschenfelder (2011); vinculado aos grupos de pesquisa Práticas Educativas e Indicadores de Qualidade, e o segundo, Universos Paralelos: Arte Sequencial, Mediação Cultural e práticas pedagógicas, ambos pertencentes ao Programa de Pós-graduação da Universidade La Salle.
Irrigation influences on summer stream temperature variability
Authors: Alger Sara , Lane Belize , Neilson Bethany
Published: January 2021

Irrigation activities are a major control on water movement and storage
in irrigated river valleys in the Intermountain West, USA. Particularly
in dry years, surface water diversions can deplete streams over the
summer irrigation season, leading to more variable stream temperatures
and increased risk for resident aquatic species. Cooler lateral inflows
derived from irrigation activities can mitigate the impacts of depletion
by buffering main channel stream temperatures. Given the increasing
susceptibility of depleted streams to climate and land use changes,
understanding stream temperature patterns and controls in these systems
is critical. We used intensive field monitoring over three summers and
thermal aerial imagery to characterize stream temperature patterns and
irrigation influences in a 2.5 km reach of a small agricultural stream
in northern Utah. Considering variable hydrology, weather, channel
morphology, diversions, and lateral inflows we found stream temperatures
to be relatively insensitive to flow depletion or lateral inflows in a
wet year but very sensitive in drier years. Irrigation-related lateral
inflows reduced longitudinal warming and diel variability during drier
years and at times prevented temperatures from reaching stressful or
lethal limits. Reaches with substantial lateral inflow contributions
also had a greater areal proportion of low temperatures and spatial
temperature diversity. These trends were enhanced by differences in
channel morphology, with greater spatial and temporal variability in
multi-thread than single-thread reaches. Study results highlight
critical flow and weather conditions driving increased temperature
variability that will likely become more extreme with additional climate
change related reductions in baseflow. Regardless of the cause, this
study highlights that decreased instream flows increase the importance
of identifying, quantifying, and maintaining lateral inflows to maintain
instream temperatures and preservation of these inflows should be
considered in future water management decisions.
The immune response does not prevent homologous Porcine epidemic diarrhoea virus reinfection five months after the initial challenge.
Authors: Díaz Ivan , Pujols Joan , Cano Esmeralda , Cortey Marti , Navarro Núria , Vidal Anna , Mateu Enric , Martín Marga
Published: January 2021

The aim of the present study was to evaluate the duration of protective
immunity against Porcine epidemic diarrheoa virus (PEDV). To that, a two
phases study was performed. In the first phase, 75 four-week-old pigs
(group A) were orally inoculated (0 days post-inoculation; dpi) with a
European PEDV G1b strain and 14 were kept as controls (group B). The
second phase started five month later (154 dpi), when animals in group A
were homologous challenged and animals in group B were challenged for
first time. Clinical signs, viral shedding and immune responses were
evaluated after each inoculation, including the determination of
antibodies (ELISA and viral neutralisation test, IgA and IgG ELISPOTs
using peripheral blood mononuclear cells and lymph node cells) and the
frequency of interferon-gamma (IFN-γ) secreting cells. During the first
phase, loose stools/liquid faeces were observed in all group A animals.
Faecal shedding of PEDV occurred mostly during the first 14 days but, in
some animals, persisted until 42 dpi. All inoculated animals
seroconverted for specific-PEDV IgG and IgA, and for neutralizing
antibodies (NA). At 154 dpi, 77% of pigs were still positive for NA.
After that, the homologous challenge resulted in a booster for IgG, IgA,
NA, as well as specific-PEDV IgG, IgA and IFN-γ secreting cells. In
spite of that, PEDV was detected in faeces of all pigs from group A,
indicating that the immune response did not prevent reinfection although
the duration of the viral shedding and the total load of virus shed was
significantly lower for previously challenged pigs (p<0.05).
Taken together, the results indicated that, potentially, maintenance of
PEDV infection within an endemic farm may occur by transmission to and
from previously infected animals and also indicates that sterilising
immunity is shorter than the productive life of pigs.
Adaptive and non-adaptive plasticity in changing environments: implications for sexual species with different life history strategies
Authors: Romero-Mujalli Daniel , Rochow Markus , Kahl Sandra , Paraskevopoulou Sofia , Folkertsma Remco , Jeltsch Florian , Tiedemann Ralph
Published: January 2021

Populations adapt to novel environmental conditions by genetic changes
or phenotypic plasticity. Plastic responses are generally faster and can
buffer fitness losses under variable conditions. Plasticity is typically
modelled as random noise and linear reaction norms that assume simple
one-to-one genotype-phenotype maps and no limits to the phenotypic
response. Most studies on plasticity have focused on its effect on
population viability. However, it is not clear, whether the advantage of
plasticity depends solely on environmental fluctuations or also on the
genetic and demographic properties (life histories) of populations. Here
we present an individual-based model and study the relative importance
of adaptive and non-adaptive plasticity for populations of sexual
species with different life histories experiencing directional
stochastic climate change. Environmental fluctuations were simulated
using differentially autocorrelated climatic stochasticity or noise
color, and scenarios of directional climate change. Non-adaptive
plasticity was simulated as a random environmental effect on trait
development, while adaptive plasticity as a linear, logistic, or
sinusoidal reaction norm. The last two imposed limits to the plastic
response and emphasized flexible interactions of the genotype with the
environment. Interestingly, this assumption led to (i) smaller
phenotypic than genotypic variance in the population and the coexistence
of polymorphisms, (ii) many-to-one genotype-phenotype map, and (iii) the
maintenance of higher genetic variation – compared to linear reaction
norms and genetic determinism – even when the population was exposed to
a constant environment for several generations. Limits to plasticity led
to genetic accommodation, when costs were negligible, and to the
appearance of cryptic variation when limits were exceeded. We found that
adaptive plasticity promoted population persistence under red noise
stochasticity and was particularly important for life histories with low
fecundity. Populations producing more offspring could cope with
environmental fluctuations solely by genetic changes or random
plasticity, unless environmental change was too fast.
The Role of Geography in Shaping Governance Performance
Authors: Baluga Anthony , Carrasco Bruno
Published: January 2021

This paper demonstrates that good governance in one country can influence governance improvements in neighboring countries and highlights that regional political and economic cooperation can benefit institutional development across borders. Governance has a spatial dimension due to spillovers and resource flows across juridical boundaries. This paper finds that governance in a given country—manifested most clearly through voice and accountability—exhibits a positive relationship with those in neighboring countries. Feedback mechanisms are traced in that any change in the income level of a country can affect its governance performance and also impact the governance scores of neighboring countries. This phenomenon is observed in the “Arab Spring,” “Me Too,” and “Black Lives Matter” cross-border movements
Drivers and Benefits of Enhancing Participation in Global Value Chains: Lessons for India
Authors: Mitra Sabyasachi
Published: January 2021

Enhancing participation in global value chain (GVCs) can facilitate development outcomes that India strives to achieve, including generating productive employment opportunities, increasing labor productivity, and gaining a larger share of global exports. This paper draws from the Asian Development Bank’s Multiregional Input–Output Database and highlights the role of various drivers of GVCs participation across primary, manufacturing, and services sectors. It also evaluates the drivers and economic consequences of participating in different segments of GVCs, which can apply to India’s potential development outcomes. Results of the study indicate increasing GVC participation can positively impact the economy and contribute to raising per capita income, labor productivity, investment, and exports.
Predicting Poverty Using Geospatial Data in Thailand
Authors: Puttanapong Nattapong , Martinez Jr Arturo M. , Addawe Mildred , Bulan Joseph , Durante Ron Lester , Martillan Marymell
Published: January 2021

This study examines an alternative approach in estimating poverty by investigating whether readily available geospatial data can accurately predict the spatial distribution of poverty in Thailand. It also compares the predictive performance of various econometric and machine learning methods such as generalized least squares, neural network, random forest, and support vector regression. Results suggest that intensity of night lights and other variables that approximate population density are highly associated with the proportion of population living in poverty. The random forest technique yielded the highest level of prediction accuracy among the methods considered, perhaps due to its capability to fit complex association structures even with small and medium-sized datasets.
Reduksi Udema Kaki Mencit (Mus musculus) Terinduksi Karagenan Setelah Pemberian Ekstrak Daruju (Acanthus ilicifolius L.)
Authors: Ikhwan Darul , Rachmadi Octavian , Putri Annisa Dyah Astari , Widiyantoro Ari
Published: January 2021

Acanthus ilicifolius L. is one of the mangrove plants that contain a lot of potential secondary metabolites of medicinal raw materials. People of Sambas Regency of West Kalimantan Province uses leaves extract daruju to overcome the pain in the stiff and swollen. The objective of this study was to know the antiinflammatory activity of leaves extract of daruju, in the form of edema reduction of mices feet induced carrageenan. The method used in the form of maceration and partition extraction followed by phytochemical test of crude extract and the fraction of result of partition. Furthermore, the crude extract and the fraction of the result of the partition were tested for the reduction of edema mices feet induced carrageenan. The results showed that ethyl acetate fraction had the best antiinflammatory activity because it was able to decrease the edema of mices feet by 75% at 750 mg / kg BW. Ethyl acetate fraction has the ability to reduce edema because it contains group compounds of flavonoid and terpenoid.
THE DNEPER UKRAINE TRADITION IN THE SACRED ARCHITECTURE OF DON REGION IN THE 18TH CENTURY
Authors:   Lviv Polytechnic National University, Department of Design and Basics of Architecture, O. Chelombitko , Yu. Sentymrei ,   Lviv Politechnic National University, Department of Design and Fundamentals of Architecture
Published: January 2021

On the basis of historical graphic materials analysis, a number of Don region sacral objects were identified as those whose style and character are undoubtedly connected with the traditions of Dnieper Ukraine architecture. The influence of the Dnieper region architecture in this region is mainly associated with the main military cathedral in Cherkassk (now Starocherkassk), but, the presented materials shows a much wider scale of this phenomenon within the framework of wooden construction. Has been ascertained, that Dnieper architectural tradition is present in the whole territory of the Don region, and not only in those close to Zaporizhia and Slobozhanshchyna (Sloboda Ukraine). It is characterized by the combination of planning "octagons" (“vosmeryk”) on the principles of axial and centric symmetry, pyramid composition, accentuation of the central volume by the highest dome and more. Characteristic differences include some deviations from symmetry and the presence of a ground elevation. It is noted that among the whole complex of objects related to the Ukrainian cultural influence in the present territories of the Russian Federation (Kuban, Starodub region, East Sloboda Ukraine, Siberia, etc.), the Don region is the least researched for the identification and analysis of architectural objects in the solutions of which are traced to the Dnieper Ukraine signs. This is due primarily to the fact that, with the exception of a few stone ones, such objects ceased to exist during the nineteenth century, being replaced by new structures that has a completely different style. Since such buildings ceased to exist by the end of the nineteenth century, it has been determined that the prospective areas of further research are the study of graphic materials and documents, photographs, memories and more. Also important is the discovery of data pertaining to construction in the Don region before the eighteenth century, when its ties with the Dnieper and especially Zaporizhzhia were no less close.
Penggunaan Smartphone Sebagai Sumber Belajar Siswa Kelas XII IPS SMA Negeri 2 Lubuk Basung di Era Pandemi Pada Mata Pelajaran Sosiologi (Studi Kasus Kelas XII IPS 1, 2 dan 3)
Authors: Wati Melda Novi , Nora Desri
Published: January 2021

Penelitian ini dilatar belakangi oleh pemanfaatan smartphone sebagai sumber belajar siswa di era pandemi covid-19. Sebelum pandemi siswa juga sudah menggunakan smartphone sebagai sumber belajar. Namun, dengan kondisi seperti ini, smartphone menjadi pokok utama dalam proses pembelajaran. Penelitian ini bertujuan untuk mendeskripsikan (1) bagaimana penggunaan smartphone sebagai sumber belajar siswa kelas XII IPS di era pandemi ini, (2) kendala-kendala yang dialami siswa dan guru SMA Negeri 2 Lubuk Basung pada pembelajaran daring/Pembelajaran Jarak Jauh (PJJ). Metode penelitian yang digunakan adalah kualitatif dengan tipe studi kasus. Teknik pengumpulan data yang digunakan adalah observasi, wawancara secara daring dan dokumentasi. Subjek dari penelitian ini yaitu siswa kelas XII IPS dan guru mata pelajaran sosiologi. Teknik analisis data menggunakan reduksi data, penyajian data, verifikasi data dan penarikan kesimpulan. Hasil penelitian ini menunjukkan bahwa (1) penggunaan smartphone sebagai sumber balajar sangat bermanfaat bagi siswa karena banyak sumber yang didapatkan, (2) kendala dari siswa yaitu jaringan yang tidak stabil serta kurangnya pemahaman materi oleh siswa (3) kendala dari guru mata pelajaran karena jaringan dan guru tidak bisa memantau mana siswa yang berdiskusi dalam menyelesaikan tugas atau yang benar sendiri mengerjakannya.
Description of Health Extention Services in Moving Implementation of Family Planning Program at Korong Tembok
Authors: Muharman Nur Ikhlas , Irmawita Irmawita
Published: January 2021

This research is motivated by the implementation of family planning programs by residents. This is allegedly due to maintaining the cleanliness of the extension services carried out by the Village Midwives. This study aims to describe: (1) extension services; (2) assistance services; and (3) health services for participants who take part in the family planning program in Korean Tembok. This research is descriptive quantitative research. The population in this study was taken by all participants who took part in extension activities as much as 40 people and the sample was taken as much as 75% of the population, namely 30 people using cluster random sampling technique. The data technique used questionnaires while the data collection tools used questionnaire data which were analyzed using descriptive analysis of proportions. The results of this study indicate: 1) village midwife services in the aspect of extension services in driving the implementation of family planning programs look high; 2) village midwife services in the aspect of accompanying services in driving the implementation of family planning programs look high; And 3) village midwife services in the aspect of facility services in driving the implementation of family planning programs to appear higher. The suggestions are researching: 1) it is hoped that the health extension officers can improve the services provided in the implementation of counseling; 2) it is hoped that the members of the community will increase their awareness of health, especially in implementing family planning programs; And 3) it is hoped that other researchers will find and examine other variables related to health education.Keywords: extension services, family planning program, health
The Relationship Between Learning Strategy for Office Aplication With Learning Succes at LKP Widyaloka Bukittinggi
Authors: Sakiyah Elinur , Sunarti Vevi
Published: January 2021

This research was motivated by the low learning success in the office application training at LKP Widyaloka Bukittinggi. Researchers suspect that the cause of the training  participants' low learning success is to the lack of implementation of learning strategies by the instructors. The problems studied in this research are, "Is there a relationship between the learning strategy of office applications and the success of studying at LKP Widyaloka Bukittinggi?". This research is to see an overview of learning strategies, an overview of learning success, how the relationship between the two. This research is a correlational study using a quantitative approach. The population in the study amounted to 40 people who met the criteria. While the sample was determined to be 75% of 40, namely 30 people. Data collection in the research was conducted by researchers using a questionnaire technique and the tools used were questionnaires. The data analysis technique uses the percentage formula, the Product Moment formula. It can be concluded that: (1) the learning strategy at LKP Widyaloka Bukittinggi office applications is not good, (2) the success of learning office applications in LKP Widyaloka Bukittinggi is categorized as low. (3) there is a significant relationship between the office application learning strategy and the learning success at LKP Widyaloka Bukittinggi. For this reasons, the authors give several suggestions (1) It is hoped that the instructor in making an attractive media learning strategy method increases high learning success, so that active participants office application training activities LKP Widyaloka Bukittinggi can do well. (2) It is expected that LKP Widyaloka Bukittinggi will improve the quality of learning training for office applications at LKP Widyaloka Bukittinggi. (3) Researchers are expected to examine other variables that affect involvement citizens in learning.Keywords: learning strategies, learning success.
STUDI KRITIK MATAN HADIST
Authors: Devi Aulia
Published: January 2021

AbstractThe purpose of this study is to describe the methodological study of hadith criticism. The research method is used with the approach of library study through the source of the library from various sources of literature about the methodology of the study of hadith criticism. Then analyzed and presented the data findings objectively. The result of this study is that the criticism of matan hadith is an attempt to research the hadith that is sahīh, in order to know if the hadith is maqbūl or mardūd. As for the steps are: Matan research reviewed from the quality of his isnay, researching the editor of the matan that is as good as it is, researching the content of matan and the latter is concluding the results of matan research. Then there are two methods of criticism that have been used from classical times to modern times, namely the muqāranah method and the mu'āradhah method. This method has been applied by the companions and tabi'in. This shows that criticism of hadith is necessary to be done with the aim of avoiding forgery against the hadith. AbstrakTujuan penelitian ini untuk mendeskripsikan tentang metodologis studi kritik matan hadits. Metode penelitian yang digunakan dengan pendekatan studi pustaka melalui sumber pustaka dari berbagai sumber literatur tentang  metodologis studi kritik matan haditst. Kemudian dianalisis dan disajikan hasil temuan data secara objektif. Hasil dari penelitian ini yaitu kritik matan hadits adalah suatu upaya kegiatan penelitian terhadap matan-matan hadits yang sanad-nya sahīh, dalam rangka untuk mengetahui apakah hadits tersebut maqbūl ataupun mardūd. Adapun langkah-langkahnya yaitu: Penelitian matan yang ditinjau dari kualitas sanad-nya, meneliti redaksi matan yang semakna, meneliti kandungan matan dan yang terakhir adalah menyimpulkan hasil penelitian matan. Kemudian ada dua metode kritik matan yang sudah dipakai sejak zaman klasik hingga zaman modern, yaitu metode muqāranah dan metode mu’āradhah. Metode inilah yang sudah diterapkan oleh para sahabat dan para tabi’in. Hal demikian menunjukkan bahwa kritik matan hadits sangat perlu untuk dilakukan dengan tujuan agar menghindari pemalsuan terhadap matan hadits. Kata Kunci: Matan, Langkah dan Metode.
Al-Qur’an dan Wawasan Ekologi
Authors: Ahmad Muttaqein
Published: January 2021

AbstractThis article examines the principles of the Qur'an related to the environment by continuing to pay attention to relationships with God and social beings, and to pay attention to the conservation of the surrounding environment. This article uses a thematic method by exploring exegetical books with various verses and interpretations of the environment. The results of this study indicate that there are six principles of the Qur'an related to the environment: 1) the principle of tauhid, the principle that nature and the environment are part of the mark of God's rudeness, 2) humans as caliph on earth, 3) the principle of trust (amanah), 4) the principle of justice , 5) the principle of harmony and 6) the principle of balance. This proves that the Qur’an teaches compatibility between spiritual and scientific paths. These six principles can also become the foundation for preventing environmental crises based on the Qur'an. AbstrakArtikel ini akan mengkaji tentang prinsip-prinsip al-Qur’an terkait lingkungan dengan terus memperhatikan relasional dengan Tuhannya dan makhluk sosial, serta mereka juga harus memperhatikan konservasi lingkungan sekitarnya. Artikel ini menggunakan metode tematik dengan menelusuri kitab-kitab tafsir dengan berbagai ayat dan penafsiran tentang lingkungan. Dari hasil penelitian, dapat ditemukan enam prinsip yang terkait lingkungan yaitu prinsip tauhid, prinsip bahwa alam dan lingkungan bagian dari tanda kebasaran Allah, manusia sebagai khalifah di bumi, prinsip amanah, keadilan dan prinsip keselarasan dan keseimbangan. Hal itu membuktikan bahwa al-Qur’an mengajarkan adanya kesesuaian antara jalan ruhani dan ilmiah. Keenam prinsip itu juga dapat menjadi pondasi dalam mencegah krisis lingkungan yang berlandaskan al-Qur’an.Kata Kunci: Konservasi Lingkungan, Wawasan dan Ayat Ekologi.
Isolation, Characterization and Activity Test of Soil Origin Bacteria Amilage
Authors: Swandi Monica Kharisma
Published: January 2021

This study aimed to obtain amylase-producing potent bacteria from soil and test the amylase activity produced. Soil samples were taken from the Biological Education and Research Forest, Andalas University. The isolation was done by using the stratified dilution technique on agar media. The screening of amylase activity employed the qualitative and quantitative tests on agar starch. From 8 isolated amylolytic bacteria, there were three isolates with amylolytic potential. The results of characterization and identification based on Bergey's Manual of Determinative Bacteriology show that isolates A4, A1, and A6 belonged to the genus Bacillus, Corynebacterium, and Klebsiella. The bacteria obtained can then be produced and optimized for the needs of industrial enzymes.
The Validity of Integrated Islamic Ethnobotany Textbooks Based on the 3D PageFlip Application
Authors: Handayani Isnaini Siwi , Ayatusa'adah Ayatusa'adah , Lestariningsih Nanik
Published: January 2021

Based on the analysis of needs, it is known that Ethnobotany learning in the Biology Tadris study program at IAIN Palangka Raya has not used integrated Islamic teaching materials, lecturers and students need integrated Islamic Ethnobotany textbooks that are valid for use in learning. This study aims to describe the validity of the integrated Islamic Ethnobotany textbook based on the 3D PageFlip. This research is part of development research with the ADDIE development model. This study uses a quantitative descriptive method for feasibility assessment based on the expert review (including two material expert validators, two media expert validators, and two interpreter expert validators) using a questionnaire. The results of the study indicate that the assessment of the material expert is 94.5% (very valid), the assessment of the media expert is 90% (very valid), and the assessment of the interpreter is 90% (very valid). Thus, textbooks can be declared very valid and suitable for use in learning.
The Impact of Cognitive Style-based Learning Models on Students' Problem-Solving Abilities
Authors: Sutrisno Sutrisno , Rahayuningsih Dwi , Purwati Heni
Published: January 2021

Every student must possess problem-solving abilities. Solving students' problems is varied; several factors influence the difference between cognitive styles and learning models. This study aimed to determine differences in problem-solving abilities based on students' cognitive styles in the Concept Attention (CA) and Group Investigation (GI) learning model. This study was a quantitative study with the tenth-grade students of SMA Negeri 16 Semarang as the 2018/2019 academic year population. The sample was selected using cluster random sampling. The research data had been collected through documentation and tests and then were analyzed using nonparametric tests, specifically the Hildebrand test, since the data were not normally distributed. The results showed that students with Field Independent (FI) cognitive style's problem-solving ability were better than students with Field Dependent (FD) cognitive style, either in general, CA, or GI learning models. The CA learning model produced better problem-solving abilities than the GI learning model, both in general and in terms of the type of students’ cognitive style.
Dakon Koper Media of the Least Common Multiple and Greatest Common Divisor Materials for the Elementary School Students
Authors: Suwandayani Beti Istanti , Ekowati Dyah Worowirastri , Fadillah Ayu Nur
Published: January 2021

The Program for International Student Assessment (PISA) in 2018 showed that elementary school students' math, literacy, and science skills were poor. These problems occurred due to a lack of understanding and memorization of multiplication. They are considered difficult for students to calculate the results of the least common multiple and greatest common divisor. Thus, the development of learning media in mathematics are needed. The developed media was Dakon Koper. The purpose of this study was to develop Dakon Koper media in thematic learning. This research was a development research by implementing the ADDIE model which consisted of analysis, design, development, implementation, and evaluation. The subjects of this study were the fourth-grade elementary school students. The developed media's feasibility had been determined through a validation questionnaire filled by media, material, and learning experts. Student response questionnaires were used to record students' interest in learning. The expert validation results stated that Dakon Koper was very suitable to be used as a learning medium. The students' questionnaire responses revealed that Dakon Koper was very interesting and useful to support students' learning. Suggestions for the sustainability of this research are product dissemination for learning media in elementary schools.
Perceived challenges towards Education 4.0 implementation among academicians: A preliminary analysis
Authors: Awang Yunita , Taib Azuraidah , Muda Nazuha
Published: January 2021

The Industrial Revolution caused major changes in the economy and advancement in technology. Specifically, IR4.0 stimulates the development of Education 4.0, in which the use of information, internet and technology become part of the teaching and learning process allowing students to learn at any time through digital platforms. Promoting for Education 4.0 involved challenges particularly constant changes in the teaching and learning techniques, and the facilities to cater to the technology demands. This study attempts to assess perceived challenges towards Education 4.0 implementation among the academicians at a comprehensive university and to explore the relationship between gender and perceived challenges among them. Based on purposive sampling, online questionnaires were distributed via google form to a population of 352 academicians in the selected comprehensive university. Data gathered from 127 responses were analysed using SPSS. The findings indicate the majority of the respondents perceived IT infrastructure as the main challenge, while the skills of individuals are the least challenges towards Education 4.0 implementation. However, there is no evidence of a significant association between gender and any of the perceived challenges items. Thus, regardless of male or female academicians, they have a similar perception of the challenges towards Education 4.0 implementation. The findings assist the Education 4.0 stakeholders to look into those perceived challenges and take necessary actions such as increasing budget allocation for IT facilities, as a support towards the success of Education 4.0 implementation. Future research may be undertaken to examine more specific infrastructure challenges in implementing education 4.0 at other comprehensive universities as well as at research universities and focused universities.

Keywords: IR4.0, Education 4.0, Academicians, Challenges, Gender
Ethnographer and Archaelogist Stefan Kirovich Kuznetsov: kazan years
Authors:   Udmurt Institute of History, Language and Literature, Udmurt Federal Research Center, Ural Branch of RAS, Zagrebin Alexei Ye.
Published: January 2021

The paper describes the life and academic work of S.K. Kuznetsov, ethnographer and archaeologist, whose works have left a noticeable mark on historiography and is are actively cited by modern researchers. S.K. Kuznetsov was a prominent representative of the generation of researchers of the Finno-Ugric peoples of Russia who worked at the turn of the 19th – 20th centuries under the auspices of the Society of Archaeology, History and Ethnography affiliated to Imperial Kazan University. In his study of the spiritual and material culture of the Mari and Udmurt population of the Kama-Vyatka region, he was guided by humanistic principles, generally characteristic of the Kazan scientific community.
Approach To Treat Insomnia In Substance Use Disorder Population
Authors:   Montefiore Medical Center/ Albert Einstein College Of Medicine, Riaz Usman
Published: January 2021

The insomnia is a well-known presenting complaint among substance use disorder patients, as untreated insomnia can lead to major consequences, including is a risk factor for relapse on alcohol/ drugs. Therefore, treatment of this comorbid disorder is indeed important and should be a part of treatment plan while treating an addiction population.
Using Quality Improvement Methodology To Standardize Procedures Of The 6 Minute Walk Test On An Inpatient Cardiopulmonary Program
Authors:   Burke Rehabilitation Hospital, Struble-Fitzsimmons Danielle
Published: January 2021

The 6-Minute Walk Test (6MWT) assesses aerobic capacity and endurance and is recommended for use in the geriatric cardiopulmonary patient population.
Was The Creation Of Fresenius Medical Care And DaVita A Step Towards A Government Funded Oligopoly To Reduce Medicare Expenditures
Authors:   Boston University, D Sullivan John
Published: January 2021

End Stage Renal Disease impacts the lives of more than seven hundred thousand Americans and their families. Initially, the CMS funded program, as it was designed in 1972, encouraged nephrologists to open dialysis facilities as a part or extension of their medical practice opening the door to access to care that otherwise seemed impossible.
Does A Perfect And Simple Peritoneal Dialysis Catheter Exist But We Are Unaware Of? Insights About The Current Guidelines And Literature Review
Authors:   King Fahad Hospital Of The University, A Nasreldin Mohamed
Published: January 2021

Peritoneal dialysis is an effective treatment for end-stage renal disease patients who require renal replacement therapy but unfortunately the use of it is still underutilized worldwide despite its several advantages over hemodialysis and cost efficiency for heath policies.
Usefulness of Medi Test Combi 9 in the Diagnosis of Hemoglobinuria in Limited Recourse Setting
Authors:   University Hospitals Of Kinshasa, Bodi Joseph Mabiala
Published: January 2021

Detection of hemoglobin in fresh urine remains a challenge in resource limited setting since quantitative measurements of hemoglobinuria is not always technically feasible. This study aimed to evaluate the performance of 3 types of dipstick for the diagnosis of hemoglobinuria in children suffering Black water fever.
Publication trends on arthroscopy from India
Authors: Kambhampati Srinivas B. S. , Karlapudi Vasu , Maini Lalit , Vaishya Raju
Published: January 2021

Objectives:

Arthroscopy is becoming more popular as a specialty in recent times in India. We looked into the publications done by Indian authors in journals listed in the Scopus database.

Materials and Methods:

A search was carried out from the first publication until the end of 2019. The total number of publications was 638. We analyzed the output, looking into the top 10 authors, universities, journals in numbers, and citations. We also looked into the year-on-year growth of all articles and in each branch of arthroscopy to identify more academically active subspecialties.

Results:

There has been a steady increase in the number of publications in this branch of orthopedics with a steep increase after 2016. The knee joint was the most published, followed by the shoulder. Maulana Azad Medical College and Lok Nayak Hospital was the most published university, followed by All India Institute of Medical Sciences, New Delhi. We identify the limitations and make recommendations to identify ways to improve and increase academic activity in the subspecialty as a whole.

Conclusion:

There is a healthy trend of increase of publications on arthroscopy from India. Although the overall numbers published from India were a small fraction compared to global numbers, recent trends indicate increased interest in the subject. Higher quality studies and more contribution form private institutions is required over the coming years to boost the publications from India.
Aptamers for Detection and Diagnostics (ADD) is a proposed mobile app acquiring optical data from conjugated quantum nanodots to identify molecules indicating presence of SARS-CoV-2 virus: Why public health and healthcare need smartphone sensors as a platform for early detection and prevention
Authors: Datta Shoumen
Published: January 2021

Proposed SARS-CoV-2 surveillance tool using a mobile app for non-invasive monitoring of humans and animals. Engineering a biomedical device as a low-cost, non-invasive, detection, and diagnostic platform for surveillance of infections in humans, and animals. The system embraces the IoT “digital by design” metaphor by incorporating elements of connectivity, data sharing and (secure) information arbitrage. Using an array of aptamers to bind viral targets may help in detection, diagnostics, and potentially prevention in case of SARS-CoV-2. The ADD tool may become part of a broader platform approach.
Synthesis and styrene copolymerization of novel trisubstituted ethylenes: 4. Oxy, phenyl, acetoxy, acetyl, cyano, and amino ring-substituted 2-methoxyethyl phenylcyanoacrylates
Authors: Baily Matthew A. , Bell Kristina M. , Brown Terece K. , Chudgar Anjali N. , Deutmeyer Hannah C. , Esh Natalie , Fasman Dana , Gardner Emily I. , Gembara Zachary J. , Inoshita Gabe T. , Karparov Ivan , Lafuente Andres S. , Rocus Sara M. , Schjerven William S. , Kharas Gregory
Published: January 2021

Novel trisubstituted ethylenes, ring-substituted 2-methoxyethyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2CH2OCH3 (where R is 2-benzyloxy, 3-benzyloxy, 4-benzyloxy, 3-(4-methylphenyl), 4-(4-methylphenyl), 4-acetoxy, 2-acetyl, 3-acetyl, 4-acetamido, 2-cyano, 3-cyano, 4-cyano, 4-dimethylamino, 4-diethylamino) were prepared and copolymerized with styrene. The ethylenes were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and 2-methoxyethyl cyanoacetate, and characterized by CHN analysis, IR, 1H and 13C NMR. All the ethylenes were copolymerized with styrene in solution with radical initiation (ABCN) at 70°C. The compositions of the copolymers were calculated from nitrogen analysis.
Topino: A Graphical Tool for Quantitative Assessment of Molecular Stream Separations
Authors: Kochmann Sven , Ivanov Nikita A. , Krylov Sergey
Published: January 2021

In molecular-stream separation (MSS), a stream of a multi-component mixture is separated into multiple streams of individual components inside a thin rectangular chamber. Despite great potential and many years of work on MSS, its analysis was underdeveloped until recently. To fill in this gap, we introduced a novel and convenient way to assess MSS by convoluting the separation zone into a simple 2D plot called angulagram. We implemented and publicly shared Python programs for the generation of angulagrams. However, we realized that Python programs create two hurdles (setting up a resembling Python environment and using a command line interface) for other researchers to try out and adopt this new approach. To make our approach more accessible to the MSS community, we introduce and present here the open-source software Topino for quantitative assessment of MSS. Topino is a user-friendly, accessible program with a graphical user interface that allows the user to assess MSS data in a fast and straightforward way (less than 2\ min). The software is available at https://github.com/Schallaven/topino.
Activated Carbon Fabric Respiratory Mask reduces Blood Lead, Oxidative Stress and Improves the Antioxidant Status and Liver Functions in Unorganised Battery Workers
Authors: Jyotsna A Patil  , Mandakini S Kshirsagar  , Arun J Patil
Published: January 2021

Effect of use of Activated Carbon Fabric (ACF) mask on blood lead (PbB), lipid peroxide, erythrocytes-Superoxide Dismutase (SOD), Catalase, Ceruloplasmin, and liver functions tests of battery manufacturing workers (BMW) were studied. For this study, 36 male battery manufacturing workers, those who are regularly using ACF mask for two months were included. A blood sample was collected before and after using ACF masks from battery manufacturing workers and estimated the blood lead level, liver function tests, oxidative stress, and antioxidant status parameters by using the standard method. After two months use of ACF mask by BMW, the blood lead level (P<0.01, -15.76%), total serum bilirubin (P<0.05, -28.09%), alanine transaminase (P<0.05, -20.84%), lipid peroxide (P<0.001, -33.33%) were significantly decreased and erythrocytes-superoxide dismutase (P<0.05, 22.38%), catalase (P<0.05, 38.39%), ceruloplasmin (P<0.05, 13.13%) were significantly increased in battery manufacturing workers as compared to before using the mask. This study reflects the use of two months ACF mask of high lead-exposed workers are useful to decrease lead absorption, which results in decreases oxidative stress and improves the antioxidant status and prevents liver toxicity.