bluuebunny/crossref_metadata_2025 huggingface dataset:
THE PRODUCT CHARACTERISTICS OF TREATED-FERRONICKEL SLAG PRODUCED BY ALKALI FUSION AND CARBOTHERMIC PROCESS
Authors: Ulum Reza Miftahul
Published: May 2021

The utilization of slag as a secondary resource is usually processed by a reduction process with coal reducing agents or by leaching process. However, this study will use palm kernel shell as an alternative reducing agent to substitute coal. Palm kernel shell was chosen as an alternative reducing agent because of their availability in Indonesia. The purpose of this study is to determine the effect of palm kernel shell as reducing agent and its concentration (wt.%) to the ferronickel slag reduction process. The initial sample is ferronickel slag which had been proceed by alkali fusion by adding 20 wt.% sodium carbonate (Na2CO3) as an additive and then roasted. The roasted product is then mixed with palm kernel shell reductant by ratio (sample : reductant), which are 15:85, 20:80, and 25:75 in weight percent. Samples that have been mixed are then compacted using compacting machine. Then the reduction process is carried out using a tube furnace at a temperature of 1100°C for 60 minutes with a heating rate of 10°C/minute. The palm kernel shells were analyzed using ultimate and proximate analysis, while the reduced product is then characterized by SEM-EDS and XRD for further analysis. Based on the results of the characterization, in this study it was found that the reduction process using palm kernel shell produces products in the form of iron metal, magnetite, hematite, and sodium silicate. The optimum reducing agent concentration in this study is by adding 15 wt.% reductant.
Applications of Compter Vision: Skyline Extraction and Congressional Districting [védés előtt] = A gépi látás alkalmazásai: skyline-kiemelés és választókerület-szabdalás
Authors:   , Nagy Balázs
Published: May 2021

This thesis discusses problems from the fields of computer vision and congressional districting. The connection between the two seemingly distant subjects is image processing, which can be applied for both skyline extraction and circularity measurement. Hiking applications have a serious problem with the sensor accuracy of mobile devices. With the help of the mountainous skyline and a 3D map, the precision of orientation can be significantly increased. Redistricting has to be carried out to resolve geographic malapportionment caused by the different district population growth rates and migration. This process can be manipulated for an electoral advantage of a party, but achieving optimal partisan districting is not easy at all. In most states of the USA, redistricting is made by non-independent actors and often causes debates about gerrymandering. The highest possible circularity is a natural requirement for a fair legislative district. Thus, shape analysis can be a powerful tool to detect potential manipulation. First, we present an algorithm for skyline extraction and orientation in mountainous terrain, and we also verify the method in a relevant environment. Then, we prove that optimal partisan districting and majority securing districting are NPcomplete problems, and demonstrate why finding optimal districting in real-life is challenging. Finally, we introduce a novel, parameter-free circularity measure that can be used to detect gerrymandering and apply it to congressional districts.
CADERNOS DE ALUNOS EM FASE DE ALFABETIZAÇÃO
Authors: Silveira Alessandra Amaral da
Published: May 2021

Este artigo tem como objetivo analisar o uso da letra imprensa minúscula em cadernos de alunos em fase inicial de escolarização. Neste estudo, foram usados 53 cadernos de alunos do período de 1949 a 2015, salvaguardados em um Centro de Memória brasileiro (Hisales). A metodologia utilizada foi a operação historiográfica como uma produção do pesquisador que associa um lugar (social) com diferentes procedimentos de análises (práticas) e a construção de uma escrita. A análise possibilitou perceber diferentes denominações e a presença distinta da letra imprensa nos cadernos. Primeiro, no período de 1949 a 1977, a denominação scritp e o interesse em torná-la a escrita oficial, sendo que, nesse momento, se localiza no acervo cadernos, com o uso exclusivo desse tipo de letra. Segundo, no período de 1990 a 2015, quando a letra imprensa minúscula volta a aparecer no conjunto de cadernos dos alunos, porém, neste momento, somente utilizada em concomitância com outros tipos de letras. Esses momentos distintos em torno da letra imprensa minúscula, no espaço escolar, são marcados por diferentes debates de ordem histórica, pedagógico, política, social e econômica, que, de certa maneira, contribuem para que um determinado tipo de letra se estabeleça de forma hegemônica na escola.
COTIDIANO E EXPERIÊNCIAS DE SI
Authors: Conrado Gabriela Dutra Rodrigues , Fonseca Márcia Souza da
Published: May 2021

Este artigo pesquisa o cotidiano de uma turma de 9º ano do Ensino Fundamental, investigando como articular tal cotidiano ao currículo dos anos finais da Educação Básica em uma escola da periferia do município de Pelotas - RS. Para tanto, o trabalho faz aproximações entre cotidiano, na perspectiva de Michel de Certeau, e entre jogos de linguagem, segundo Ludwig Wittgenstein. A fim de priorizar a cultura dos/as estudantes no currículo escolar, construímos uma experiência educativa inspirada no pensamento de Jorge Larrosa. A partir das atividades pedagógicas produzidas para os estudantes, analisamos as experiências de si no processo. A parte empírica visibiliza vivências dos/as jovens relacionadas a circunstâncias de abandono; a esperanças de um futuro melhor; e à importância de atitudes de esperteza para sobreviver no cotidiano.
MARCOS REFERENCIAIS DE APROXIMAÇÕES ENTRE TEORIA CRÍTICA DE CURRÍCULO E EDUCAÇÃO INCLUSIVA
Authors: Ziesmann Cleusa Inês , Nogueira Sandra Vidal
Published: May 2021

Os estudos sobre a educação inclusiva são práticas curriculares de inclusão de talento, deficiência, origem socioeconômica ou cultural em escolas e salas de aula provedoras, em que as necessidades desses alunos sejam satisfeitas. Nessa perspectiva, tendo por base a revisão de literatura sobre o tema, o presente artigo objetiva explicitar algumas das aproximações entre Teoria Crítica de currículo e Educação Inclusiva a partir do detalhamento de quatro subitens: a problemática curricular e o traçado de seu campo conceitual; a inserção da teoria crítica de currículo, a partir dos anos 80; a década de 90 e a institucionalização de práticas pedagógicas inclusivas; os marcos legais para a promoção da educação inclusiva no Brasil.
Juego de roles sociales, función simbólica y desarrollo de la personalidad en la edad preescolar
Authors: González-Moreno Claudia Ximena
Published: May 2021

Las formas maduras del juego de roles sociales posibilitan el desarrollo complejo de la función simbólica como aspecto indispensable para el desarrollo de la personalidad del niño en la edad preescolar. Este artículo presenta los resultados de una investigación realizada con un grupo de 20 niños en edad preescolar de la ciudad de Bogotá, Colombia a partir de una intervención en la que se usó el juego de roles sociales. Se identifican las características del juego de roles sociales y de la función simbólica en la medida que ambos se van complejizando a través de la orientación que ofrece el adulto. En general se aprecia una transformación tanto en el juego como en la función simbólica, sobre todo en la posibilidad de comprender al otro y de valorarlo. Se concluye que el desarrollo simbólico permite la formación de actitudes de abnegación en los niños. Por consiguiente, desarrolla la capacidad de ver el mundo a través de los ojos de los demás en interacciones comunicativas de reciprocidad emocional.
Construcción de sentidos y significados de la personalidad a través de la alfabetización de adultos
Authors: Pérez Juan Carlos Malagón , Moncada Gerardo Ortiz
Published: May 2021

No México, os programas da alfabetização do adultos (INEA, 2011; INEA, 2016) geralmente se referem a suas implicações no ensino, na aprendizagem ou nos recursos educacionais envolvidos; no entanto - do um abordagem histórico-cultural -, os processos de alfabetização têm um impacto direto no desenvolvimento da personalidade e em identidade-cidadania (MALAGÓN, 2020). Neste estudo, a personalidade é entendida como a manifestação mais alta da atividade psíquica (VYGOTSKY, 1995), que muda constantemente devido à integração do cognitivo, do afetivo e do volitivo em diversos processos culturais (LEONTIEV, 1978; BOZHOVICH, 1976; ASMOLOV, 2002) tal como é a educação. O objetivo desta pesquisa é analisar e interpretar os sentidos e significados configurados no processo de alfabetização do Instituto Nacional de Educação de Adultos (INEA) sobre a personalidade dos alunos. Para atingir esse objetivo, etnografia e entrevista são utilizadas como recursos metodológicos que permitem recuperar as experiências de alunos e educadores na rotina educacional. As informações foram interpretadas utilizando a técnica de análise temática proposta por Van Manen (2003), obtendo a recuperação dos sentidos e significados dos agentes educacionais participantes. Os resultados obtidos na análise temática permitem identificar o impacto que a alfabetização tem no desenvolvimento da personalidade, devido ao seu caráter comunicativo, mediação, representação da realidade e intercâmbio de significados.
Pengaruh Kombinasi Perlakuan Air Panas dan Kultur Jaringan terhadap Infeksi Virus pada Bawang Merah
Authors: Wulandari Astri Windia Wulandari , Sobir Sobir , Hidayat Sri Hendrastuti
Published: May 2021

Sebagian besar petani bawang merah di Indonesia menggunakan umbi sebagai bahan perbanyakan meskipun banyak penyakit diketahui ditularkan melalui umbi. Perlakuan air atau udara panas pada organ aktif seperti biji atau umbi adalah metode yang umum digunakan untuk menghasilkan tanaman bebas virus. Penelitian ini dilakukan untuk mendapatkan umbi bawang merah bebas virus melalui perlakuan air panas dikombinasikan dengan kultur jaringan. Deteksi virus sebelum perlakuan menggunakan Dot immuno binding assay (DIBA) untuk memastikan infeksi genus Potyvirus (Onion yellow dwarf virus/OYDV), Carlavirus (Shallot latent virus/SLV dan Garlic common latent virus/GCLV) dari umbi. Penelitian disusun menggunakan rancangan acak lengkap dengan tiga faktor, yaitu kultivar (Sumenep dan Bima Curut), suhu (45 °C, 50 °C, dan suhu kamar), dan waktu pemanasan (15 dan 30 menit). Secara umum, perlakuan air panas yang dikombinasikan dengan kultur jaringan tidak memengaruhi kemampuan tumbuh dan jumlah daun planlet. Berdasarkan deteksi virus menggunakan RT-PCR, suhu 45 °C selama 15 menit mampu mengeliminasi 100% Potyvirus dan Carlavirus pada bawang merah ‘Bima Curut’; sedangkan pada bawang merah ‘Sumenep’ perlakuan air panas pada suhu 50 °C selama 15 menit mampu mengeliminasi 100% Potyvirus dan 33.33% Carlavirus.
Cover Jurnal Fitopatologi Vol. 17 No. 2, Maret 2021
Authors: Hidayat Sri Hendrastuti
Published: May 2021

This editorial contains the front cover, editorial page and back cover of the Indonesian Journal of Phytopathology, Volume 17, No. 2, March 2021.
How do pre-service chemistry teachers rate the importance of content in organic chemistry during their chemistry studies at university?
Authors: Hermanns Jolanda
Published: May 2021

In this article a cross-sectional study on the students’ rating with regard to the contents in organic chemistry will be discussed. Pre-service teachers rated the contents with a questionnaire during their bachelor or master studies. It was shown that the pre-service chemistry teachers during their master studies rated the content as more important than the bachelor students. One possible explanation can be that the master students have teaching experience due to their internships at school whereas the bachelor students can only rely on their experience from their own school days. Overall, content belonging to the school curriculum in the federal state “Brandenburg” where the pre-service teachers’ university is located was rated better than content that was not a part of this curriculum. Concepts were not rated significantly better than the content. Because of the importance of conceptual knowledge for the future profession as a teacher, the courses in organic chemistry will be redesigned with a clear focus on concepts.
Highly Cr(vi)-tolerant Staphylococcus simulans assisting chromate evacuation from tannery effluent
Authors: Kalsoom Asma , Batool Rida , Jamil Nazia
Published: May 2021

Chromium(vi) contaminated sites have been targeted for studying highly chromate-resistant bacteria. From a total of 23 Cr(vi)-resistant bacteria isolated on Luria-Bertani agar medium supplemented with K2CrO4 (1,500 μg/mL), only one strain UT8 (Staphylococcus simulans) was able to tolerate high concentration of chromate, i.e., up to 200 mg/mL in agar medium from tannery effluent. In acetate minimal medium (AMM), it showed maximum tolerance of up to 2,500 μg/mL. Cr(vi) removal potential was 94.6% after 24 h (K2CrO4 1,500 μg/mL). Parametric conditions were optimized in AMM to attain maximum chromate removal. Exopolysaccharides extracted from bacterial cells exposed to chromate exhibited major absorption shifts from 2,500 to 500 cm−1 revealed by Fourier transform infrared spectroscopy. Energy-disperse X-ray spectroscopy further confirmed the adsorption of oxyanions to the bacterial cells. Surface topography of the Cr(vi) treated cells showed transformation into concave shape by scanning electron microscopy. The presence of resistance genes, i.e., chromate reductase (chrR) and class I integrase (intI1), further confirmed tolerance toward chromate. Microarray data analysis of transcriptional gene expression suggested upregulation of cys gene cluster under chromate exposure. Concisely, the present investigations revealed the potential of S. simulans to be an effective candidate for chromate reclamation of wastewater.
Functional genomics meta-analysis to identify gene set enrichment networks in cardiac hypertrophy
Authors: Angeloni Miriam , Thievessen Ingo , Engel Felix B. , Magni Paolo , Ferrazzi Fulvia
Published: May 2021

In order to take advantage of the continuously increasing number of transcriptome studies, it is important to develop strategies that integrate multiple expression datasets addressing the same biological question to allow a robust analysis. Here, we propose a meta-analysis framework that integrates enriched pathways identified through the Gene Set Enrichment Analysis (GSEA) approach and calculates for each meta-pathway an empiricalp-value. Validation of our approach on benchmark datasets showed comparable or even better performance than existing methods and an increase in robustness with increasing number of integrated datasets. We then applied the meta-analysis framework to 15 functional genomics datasets of physiological and pathological cardiac hypertrophy. Within these datasets we grouped expression sets measured at time points that represent the same hallmarks of heart tissue remodeling (‘aggregated time points’) and performed meta-analysis on the expression sets assigned to each aggregated time point. To facilitate biological interpretation, results were visualized as gene set enrichment networks. Here, our meta-analysis framework identified well-known biological mechanisms associated with pathological cardiac hypertrophy (e.g., cardiomyocyte apoptosis, cardiac contractile dysfunction, and alteration in energy metabolism). In addition, results highlighted novel, potentially cardioprotective mechanisms in physiological cardiac hypertrophy involving the down-regulation of immune cell response, which are worth further investigation.
comunicación de los grandes destinos urbanos internacionales en Twitter
Authors: Pastor-Marín Francisco Manuel , Cabrera González María Ángeles , Paniagua-Rojano Francisco Javier
Published: May 2021

El objetivo general de este trabajo es analizar la estrategia de comunicación que aplican grandes destinos turísticos de carácter urbano a través de Twitter, considerada como una de las principales herramientas de microblogging. Para ello, se examina la actividad, los temas más utilizados, los formatos y la capacidad para generar interacción con los usuarios y los potenciales visitantes. Como técnica metodológica, se propone el análisis de contenido de las cuentas oficiales de los destinos incluidos en el estudio ‘City Tourism Performance Research’, que recoge casos de éxito en el turismo urbano, a los que se suma Málaga, por haber sido elegida por la Comisión Europea como Capital de Turismo Inteligente. En total, se analizan 669 tuits publicados entre septiembre y octubre de 2019 en los perfiles oficiales de Twitter de Berlín, Bogotá, Buenos Aires, Copenhague, Ciudad del Cabo, Hangzhou, Linz, Málaga, Marrakech, Pekín, Tianjin, Tokio y Turín. Se observa que los destinos estudiados interaccionan poco con sus seguidores y apenas generan conversación. Twitter sigue siendo más utilizado como panel de información que como canal de interacción. Se concluye que esta red está en declive como vía de comunicación de los destinos turísticos, ya que los territorios mantienen en ella una presencia más intuitiva que estratégica pese a las posibilidades que ofrece en la escucha activa y la planificación.
Performance Characterization of Unsaturated Granular Soils Using Static and Dynamic Plate Load Test
Authors: Shaban Alaa M. , Almuhanna Raid R. , Jawad Ahelah A.
Published: May 2021

Determination of the modulus of subgrade reaction (ks) is an essential geotechnical design parameter that describes the relationship between stress and the associated settlement of soils. The ks is typically obtained using a laborious and costly method called the plate load test (PLT), and thus, to overcome the limitations related to the PLT, determining an alternative testing technique that can easily predict the ks is a priority. The feasibility of using a light weight deflectometer (LWD), also known as the dynamic PLT, to determine the ks of unbound pavement layers was thus investigated in this research. Eighteen laboratory testing models of granular soils were prepared and tested using the dynamic PLT (LWD) in conjunction with the static PLT (PLT). The soils’ characteristics examined under both dynamic and static loading conditions were analyzed and correlated. A series of multiple nonlinear regression analyses were conducted using three groups of independent variables: (1) LWD measurements, (2) basic soil properties, and (3) LWD data plus basic soil properties. Several nonlinear regression models were developed to predict the modulus of subgrade reaction on the basis of the LWD measurements and selected soil characteristics. The results revealed that certain LWD measurements, including dynamic modulus (Ed), surface deflection (δ), and degree of compatibility (Dc), are strongly correlated with the results from PLT. Additionally, good correlations were identified between ks and maximum dry density, suggesting that using LWD measurements along with basic soil properties yields correlations with adequate prediction quality.
Renal cell carcinoma (RCC): fatter is better? A review on the role of obesity in RCC
Authors: Turco Fabio , Tucci Marcello , Di Stefano Rosario Francesco , Samuelly Alessandro , Bungaro Maristella , Audisio Marco , Pisano Chiara , Di Maio Massimo , Scagliotti Giorgio Vittorio , Buttigliero Consuelo
Published: May 2021

Obesity represents a well-known risk factor for renal cell carcinoma development. Several studies evaluated the relationship between obesity and outcome in patients with non-metastatic and metastatic renal cell carcinoma using different parameters such as BMI, visceral fat area and s.c. fat area. These studies suggest that obesity is associated with a better prognosis in renal cell carcinoma patients. This phenomenon is called obesity paradox and it was found in other diseases in which obesity represents an established risk factor such as heart failure, diabetes, atrial fibrillation, hypertension and coronary heart disease. The purpose of this review is to analyze the mechanisms by which obesity increases the risk of renal cell carcinoma development, to describe the evidence available to date about the link obesity-outcome and to evaluate the mechanisms to explain this apparently paradoxical relationship.
Comparison of the Critical Mass Flow Rates for Two Serpentine Designs of the Photovoltaic Solar Thermal Collector
Authors: Sakhr M. Sultan  , C.P. Tso  , M.N. Ervina Efzan
Published: May 2021

A recent analysis on the photovoltaic (PV) cell efficiency for the photovoltaic solar thermal collector (PVT), cooled by forced fluid flow, revealed that there is, in general, a critical mass flow rate that corresponds to the maximum PV cell efficiency for a PVT. The derived new equations are applicable for laminar and transition or turbulent flow regimes and could yield directly the critical mass flow rate as compared with existing methods that use repeated computational trials. To demonstrate further the generality of the method, this paper reports results on comparing the critical mass flow rates for two serpentine designs with different technical details, namely Design A and Design B, using the new equations. It is shown that Design A and Design B have critical mass flow rates of 0.041 and 0.014 kg/s, respectively. The corresponding Reynolds numbers are 4078 and 2785 for Design A and Design B, respectively. It is shown that the critical mass flow rate is different from one design to another. The importance of the critical mass flow rate is summarized.
Eye and the COVID-19
Authors:   Department of Optometry, Chandigarh University, NH-95 Chandigarh-Ludhiana highway, Mohali, Punjab-140413, India, Kumar Raj
Published: May 2021

Unusual appearances of COVID-19 (2019 novel corona virus) infected persons. The early epicenter of the pandemic, Wuhan, China has obtained medical and scientific information and knowledge in response to the infection of COVID-19. On thirteen case series and nine case-based reports, I want to put five significant facts of ophthalmic indicators of COVID-19 infected persons, hopefully, to deliver the fresh view as well as a wider perspective of COVID-19 infection.
Junctional Tachycardia as a Diagnostic Criterion in Acute Rheumatic Fever
Authors: Bratincsak Andras , Liu Jenny , Yalamanchili Rian , Purohit Prashant J. , Xoinis Konstantine P. , Yamauchi Melissa S. W.
Published: May 2021

Acute rheumatic fever (ARF) is an acute inflammatory process resulting in rheumatic carditis, one of the most common acquired heart diseases in youth. Among the clinical manifestations of carditis, pathologic valve regurgitation and atrioventricular block are included in the criteria for the diagnosis of ARF. Besides atrioventricular block, ARF may often present with other arrhythmias, such as junctional tachycardia (JT). However, JT is currently not recognized as a criterion for the diagnosis of ARF. Three adolescents presented in our hospital with JT, polyarthralgia, and laboratory signs of inflammation with evidence of preceding group A Streptococcus infection. None of the patients fulfilled the diagnostic criteria of ARF. On the basis of the presumed diagnosis of ARF, all 3 patients were treated with intravenous steroids. Steroid therapy was given, and JT converted to sinus rhythm within an average of 62 hours. Subsequent electrocardiograms revealed variable degree of atrioventricular block in all 3 patients, providing clinical evidence and fulfilling the diagnostic criteria of ARF. Patients were monitored for a total 2 to 8 days before discharge on standard antiinflammatory treatment. Follow-up electrocardiograms and Holter monitoring revealed resolution of the atrioventricular block and lack of JT recurrence in all patients. On the basis of these sentinel cases, we propose that JT should be included as a diagnostic criterion for the diagnosis of ARF.
Effect of heavy metals soil contamination on the oncological diseases rate
Authors: Suhanova I.P. , Sonko S.P. , Vasylenko O.V.
Published: May 2021

We studied the interrelation between the population health and content of heavy metals in the soils of urban ecosystems. We researched the situation in the city of Uman, Cherkasy region (Ukraine), and determined the links between the ecological quality of the urban environment and the occurrence of ecologically dependent diseases (oncopathology) in the old industrial region (Kryvyi Rih iron-ore basin). We found that the indicators did not exceed the MPC using spectral analysis of the gross content of Cu and Zn, in Uman soils. Spectral analysis of the content of mobile forms of heavy metals in the city soils was performed since mobile forms of heavy metals can be assimilated by plants and subsequently enter the human body and the abiotic component of the ecosystem of extraordinary danger to living organisms. We registered that Ni and Pb content significantly exceeded the MPC, especially in the city areas with heavy traffic. Correlation analysis showed a correlation of low and medium level (r = 0.40–0.52) between the content of mobile forms of heavy metals and the rate of oncological diseases. The correlation for Pb and Ni, the content of which significantly exceeded the MPC, was 0.40 and 0.49, respectively. Thus, we concluded that heavy metals could be a dangerous factor in the territory of Uman.
Natural spruce extract is an effective remedy to fight against varroatosis in organic beekeeping
Authors: Romanchuk L.D. , Lisohurska O.V. , Furman S.V.
Published: May 2021

Varoatosis is the most dangerous disease of bees. A number of synthetic preparations are used for its treatment. In organic beekeeping they are forbidden; and the search for new effective acaricides, which are not toxic to bees and do not contaminate bee products, is highly relevant. Therefore, our purpose was to investigate the effectiveness of using natural spruce extract to fight against varroatosis at an organic apiary. In this study, we compared the effectiveness of using natural spruce extract and formic acid extract to combat varroatosis in 24 bee families (12 each the group). The preparations were administered according to the guidelines once in the spring and once in the autumn. In the course of the study, a number of indicators were evaluated such as spring and autumn mite infestation, the strengthening and weakening of families, honey and wax productivity, the percentage of families that died (lost their queen bee) during the winter. The results of our investigation show that natural spruce extract effectively controls the varroa mite. This is confirmed by the significant difference in mite infestation between the groups treated with formic acid and spruce extract. This indicator was lower in bee families treated with spruce extract. After the spring treatment, the difference was 3 times (p=0.05), before autumn and spring next year it was 1.2 (p=0.01). When spruce extract was applied, the bee families had by 1.2 times higher honey productivity and by 1.4 higher wax productivity. Therefore, it is advisable to use this anti-varroatosis preparation in organic beekeeping. We recommend administering preparations in the spring after the first flying rout and at the end of August, adding 15 ml per 1 liter of sugar syrup (90 ml/family).
Earwigs - pests of honey bees Apis mellifera
Authors: Domatsky A.N. , Domatskaya T.F.
Published: May 2021

Two experiments studied the use of mavrik (fluvalinate) to protect honey bees from earwigs on apiary, located in the South of the Tyumen region. For this purpose, sheets of dense cardboard in size of 300x200x1 mm were prepared, containing 240, 480 and 960 mg of fluvalinate. The first experiment was conducted in June during the appearance of earwigs on the apiary, where 12 hives without bees were selected, which were divided into 4 equal groups (3 experiment and 1 control). To attract the earwigs in each hive, 6 selected frames were placed, which were covered with insulation material. In the first experimental group, 1 sheet with 240 mg of fluvalinate was attached to the bottom of each hive from the outside, as well as on the inner surface of the roof. In the second and third groups, the same was done, using sheets containing 480 and 960 mg of the active substance. In control, sheets without the agent were used. Within two weeks every 2-3 days, the hives were inspected, particular attention was paid to the presence of earwigs and waste of their vital activity in hives. The second experiment was carried out at the end of August, for which 12 bee colonies were identified, in which the earwigs were registered. In each of the six experiment colonies 1 packet (480 mg of fluvalinate) was placed on the inner surface of the hive roof, into the space between the cushion and the canvas, and on the bottom of the hive from the outside. In the control colonies (6) similar sheets were installed without the agent. All colonies were examined twice at an interval of 5 days. It was found that after 12 days in hives containing sheets with 240 mg of fluvalinate, single earwigs were found only on the bottom, in the other experimental groups no earwigs were found. In the control group, the earwigs were detected on honey combs, insulation material. In the second experiment, when inspecting experiment bee colonies 5 days after hives' treatment, no earwigs were found, in control colonies pests and traces of their vital activity were found. Thus, the use of cardboard sheets containing 480 mg of fluvalinate and placed on the bottom on the outside and inner surface of the hive roof prevents the penetration of earwigs into colonies of honey bees when they appear on a apiary. Additional installation of sheets with fluvalinate between insulation and intra-hive canvas (ceiling) helps to remove earwigs out of hives when they are found in colonies of bees.
Effect of adsorbing resins on the rapamycin biosynthesis by Streptomyces hygroscopicus VKM Ac-2737D
Authors: Dzhavakhiya V.V. , Glagoleva E.V. , Matsyura A.V.
Published: May 2021

Rapamycin, a metabolite of Streptomyces hygroscopicus, has a wide range of therapeutic applications in medicine. However, the possibility of its use is significantly limited, since the existing natural strains of this microorganism have rather low productivity that negatively influences the cost of the substance and the possible volumes of its industrial production. At the same time, the commercial use of overproducing strains is also very problematic, since they secrete a large number of metabolites suppressing both the growth of microbial culture and the biosynthesis of a target product. A possible way to solve the problem includes the addition of adsorbents to a fermentation medium for the binding of excess metabolites. In this study, five different selective adsorbing resins, DIAION™ HP20, DIAION™ HP21, DIAION™ HP 20SS, Chromolite, and LPS-500 were tested to provide optimal conditions for the rapamycin biosynthesis by the earlier developed highly-active S. hygroscopicus strain VKM Ac-2737D. The experiments were performed in a 15-L bioreactor using the optimized fermentation medium developed earlier and supplemented with the tested resins. The highest rapamycin yield (1420±5 mg/L) was obtained using a Chromolite 15AD2 adsorbing resin; this result exceeds the earlier obtained yield by 11.4%. The sorptive capacity of this resin was 92% that may significantly facilitate the processes of rapamycin isolation and purification under industrial conditions. The results of the study may be of certain interest for the further scaling-up of the industrial rapamycin production.
The formation of current internal exposure doses of the Ukrainian Polissia rural population
Authors: Landin V. , Chobotko H. , Raichuk L.
Published: May 2021

This work aimed to identify the specifics and trends of the development of the internal exposure dose (137Cs) of the rural population in Ukrainian Polissia. WBC-measurements were carried out in 2005-2013. Settlements of the Vyshgorod district of Kyiv region and Naroditsky district of the Zhytomyr region were selected for the research. Experimental data were processed using OriginPro 9 and Microsoft Excel 2016. The assumption about several distribution laws for each of the studied data sets was made based on the results of the descriptive statistics of mathematical data samples. The approximation of experimental data revealed an exponential distribution for one sample and attributes of both lognormal and normal distributions for the second one. The problem of exceeding the permissible level of internal exposure doses is relevant mainly for the rural population of Ukrainian Polissia. The novelty of the research is the valuation of objective laws of the formation of current internal exposure doses (by 137Cs) of the Ukrainian Polissia rural population. It was established that in the remote period after the Chornobyl accident an exponential distribution of internal exposure doses of the population is observed in rural settlements of Ukrainian Polissia. This indicates changes in the patterns of the formation of the radiation burden on local residents, which can be explained by the socio-demographic, environmental, and economic factors inherent with each settlement. Due to the nonuniform influence of these factors, the differentiation of settlements on the habitudes of the formation of internal exposure doses of the population takes place. The influence of various factors on the dose formation requires further in-depth study not only within the settlements but even also individual families.
Comparative and legal analysis of the legislation of Ukraine and the European Union in the field of organic production of livestock
Authors: Rodionova K.O. , Paliy A.P. , Palii A.P.
Published: May 2021

The aim of the work has been to determine the correspondence of the content of the current legislation of Ukraine to the EU regulations according to quality assurance of organic livestock production and to identify specific areas of national legal support that need to be improved in order to adapt to respective European standards. The main EU regulations in the field of production of organic livestock products are considered in the paper, the main principles of normative-legal acts of our state, which regulate this sphere, are considered. The light was throun on the problematic issues of adaptation of the national legislation of Ukraine to the EU regulations in the field of production and circulation of organic products. The need to improve the legislation of Ukraine in specific areas in accordance with European requirements is substantiated.
Influence of perennial legumes on the productivity of meadow phytocenoses
Authors: Kurhak V.H. , Panasyuk S.M. , Asanishvili N.M.
Published: May 2021

We investigated the effectiveness of soil liming during grass sowing and application of inoculation of perennial legume grass seeds with nitrogen-fixing and phosphate-mobilizing preparations. Methods. Field studies were conducted during 2016-2020 in the National Scientific Center "Institute of Farming of the National Academy of Agrarian Sciences of Ukraine" (northern part of the Forest-steppe of Ukraine, Chabany settlement, Kiev-Svyatoshinsky district of Kyiv region). Area of the sowing plot was 30 m2, control plot - 25 m². Repetition of experience four times. Technology of cultivation of perennial grasses and their mixtures was generally accepted. Nitrogen fertilizers in the form of ammonium nitrate containing 34% of active substance, phosphorus as simple superphosphate (18.7%) and potassium as potassium chloride (60%) were applied annually in early spring according to the experimental scheme. Liming was carried out by the lime application under pre-sowing cultivation during perennial grass sowing in a dose of 5 t/ha. Seeds of perennial legume grasses were inoculated with the strains of nodule bacteria, according to the technological instructions, immediately before the sowing. Dry weight content was determined by thermostatic weight method at 105 °C. Green mass yield was accounted by weight method, by weighing with subsequent recalculation of yield from 1 ha of dry weight. Results. The productivity of monogenic sowings of perennial leguminous grasses and their mixtures with awnless bromegrass in the variant without fertilization varied within the range of 5.12-8.38 tons, which is 1.7-2.5 times higher compared to the cereal grass stand which was formed from monogenic sowings of awnless bromegrass, for the five years on the average and for the yield from 1 ha of dry weight. The highest productivity and the level of accumulation of symbiotic nitrogen (191-266 kg/ha) were obtained in agrocenoses with alfalfa and the lowest one - with meadow clover.
Effect of heavy metals accumulation on locomotor activity of Ixodid ticks
Authors: Voronova N.V. , Gorban V.V. , Bohatkina V.A.
Published: May 2021

Our research aimed to study the ability of ixodid ticks to accumulate heavy metals in their bodies within a large industrial city. We used 2128 units of adult hungry ixodid ticks and 10 units of vegetation samples, collected from March 2018 to September 2020 in Zaporizhzhia (large industrial city, southeastern Ukraine). The samples were examined for the content of Cd, Pb, and Ca by the spectrometer with inductively coupled plasma series ICP-OES (Shimadzu). We also used the method of determining the locomotor activity for ticks’ behavior study. Our results demonstrated that the concentration of toxic elements in the ticks enlarges along with the content of these elements in the ground litter (r = 0.98). Analyzed the calcium content in the body of ixodid ticks, we clustered them in two groups according to the element susceptibility. Two–way analysis of variances regards cadmium and calcium accumulation in the body of Ixodid ticks proved the dependence of calcium content in ticks on the habitat degree of cadmium accumulation (P = 44.90, 0.0001, ANOVA). We suggested that the high industrialization level of industrial cities directly affect the ecology of Ixodid ticks, which, in turn, could cause the susceptibility of ticks to the pathogens.
РЕЗОНАНСНІ КОЛИВАННЯ П’ЄЗОКЕРАМІЧНИХ ЦИЛІНДРІВ З УРАХУВАННЯМ ДИСИПАЦІЇ ЕНЕРГІЇ
Authors: Григор'єва Л. О. , Безверхий О. І.
Published: May 2021

Досліджуються коливання радіально поляризованих циліндрів на резонансних частотах з урахуванням дисипації енергії. Для врахування електричних, механічних та діелектричних втрат вводяться комплексні матеріальні сталі. Для розв’язування використовується варіаційно-сплайновий метод. Проаналізовано коливання циліндрів з п'єзокераміки PZT -4 при моногармонічних електричних навантаженнях та  різних граничних умовах на торцях, визначено резонансні частоти, досліджено вплив дисипації енергії на амплітудні значення при резонансах.
MODELING OF INFLUENCE OF EXTERNAL FORCES AND STRUCTURAL FACTORS ON BIOMECHANICAL SYSTEM ELEMENT DAMAGE
Authors: Погребний О. В.
Published: May 2021

The peculiarities of integrity damage of biomechanical system element under external forces nave been studied. The radiocarpal joint which is a part of the wrist joint was considered as a biomechanical system. The element of radiocarpal joint that subjected to integrity damage or significant destruction is radius bone. The structure change depending on time is taken into account. The initial data were roentgenograms of damaged areas of the biomechanical system element. The gender factor influence was under examination too. The dependences of fracture types for patient groups were established.
Pemikiran dan Aplikasi Teologi Lingkungan di Pesantren Cicalengka Kabupaten Bandung
Authors: Anwar Saeful , Rosyad Rifki
Published: May 2021

Environmental problems are a technical, ecological problem and environmental theology, seeing how the relationship between the environment and God through the pesantren. This study aims to examine the theological understanding, awareness, and role of the Al-Faaruuq and Bahrul Hidayah Islamic boarding schools in the environment. Christian's research method is descriptive-qualitative to describe several variables relating to the research problem. This study's data sources, namely primary data sourced from information derived from Kiai or Ustaz caretakers of Al-Faaruuq Islamic boarding school and Islamic boarding school Bahrul Hidayah. Meanwhile, this research's secondary data sources are documents (journals, academic research, articles, books, and magazines). This research aims to understand the environmental theology in Islamic boarding schools al-Faaruuq and Islamic boarding school Bahrul Hidayah through the basic principles of ecological theology, namely; 1). Understanding God's unity and His creation (tauhid) are used as guidance and foothold in environmental doctrine, 2). Seeing God's signs (ayat) anywhere through contemplating nature as God's creation, 3). Become a guardian (caliph) on earth by forming the character of his students who are responsible for being caliph. 4). Maintain God's trust (amanah) and care for the environment because it is a mandate and held accountable later 5). Striving to uphold justice ('adl) limiting the use of nature according to needs, 6). Live a life in balance with nature (mizan), namely through harmonizing the human-God-nature relationship.
Fenomena Dakwah Salaf di Radio Tarbiyah Sunnah 1476 AM
Authors: Islami Zaki , Anugrah Dadan , Kusnawan Aep
Published: May 2021

Dakwah salafiyah merupakan dakwah yang mulia dan suci, sebuah seruan yang mengajak seluruh umat manusia untuk memahami dan menjalani agama islam sebagaimana para sahabat Rasulullah, yang termasuk generasi umat saat ini, dakwah ini menyeru untuk mengikuti prinsip-prinsip mereka dalam berilmu, beramal, berjihad, berhubungan dengan penguasa, bermasyarakat, beramal ma’ruf nahi munkar, dan berbagai aktivitas kehidupan lainya, dakwah salafiyah berdiri di atas manhaj yang shohih, disinari oleh cahaya kenabian dan lentera salaful sholih serta bertumpu pada kebeningan niat, kebenaran prinsip, kemantapan landasan dan kemurnian ajaran di tengan badai fitnah serta istiqomah dalam membina umat menuju perubahan sejati, kajian ini merupakan penelitian kualitatif dengan paradigma interpretif. untuk menganlisa data metode yang digunakan adalah dengan metode fenomenologi. Pengumpulan data menggunakan teknik wawancara dan dokumentasi, penelitian ini bertujuan untuk mengetahui makna dalwah fenomena dakwah salaf di radio tarbiyah sunnah.

Salafiyah propaganda is a noble and sacred propaganda, a call that invites all mankind to understand and live the religion of Islam as the companions of the Prophet, who belong to the current generation of people, call to follow their principles in knowledge, charity, jihad, associated with the authorities, community, charity ma'ruf nahi munkar, and various other life activities, the salafiyah propaganda stands on manhaj that is shohih, illuminated by the prophetic light and lanterns of the salaful sholih and rests on the calmness of intention, truth principles, foundation solidity and purity of teachings, illuminated by prophetic light and lanterns of salaful sholih and rests on the clarity of intentions, truth principles, solidity of the foundation and the purity of the teachings in the midst of the storm of slander and istiqomah in fostering people towards true change, this study is a qualitative research with an interpretive paradigm. to analyze the data the method used is the phenomenological method. Collecting data using interview and documentation techniques, this study aims to determine the meaning of the propaganda propaganda phenomena on the radio tarbiyah sunnah.
Konstruksi Pesan Dakwah Akun @duniajilbab di Media Sosial Instagram
Authors: Nurjajilah Sofa , Muhtadi Asep Saeful , Arifin Isep Zaenal
Published: May 2021

The purpose of this study, namely, (1) to know the preparation phase of construction material account propagation messages Instagram @duniajilbab; (2) to learn to know the stages of dissemination of the material of construction of the message propagation account Instagram @duniajilbab; (3) to find out the stage of formation of construction material account propagation messages Instagram @duniajilbab; (4) to know the stages of construction material confirmation message propagation account Instagram @duniajilbab. The research method used is descriptive method with the type of qualitative approaches. After doing some research, it can be concluded that messages preaching uploaded @duniajilbab account manager during June 2018 dakwah messages 16. Divided, based on the category of message propagation (creed, Sharia and morals), types of message propagation and communication technique.  As for the construction of message propagation committed account manager @duniajilbab done with four stages, the first stage of preparing material for calling made by @duniajilbab Manager and also followers, second stage of the construction was done with distribution uploading message propagation by @duniajilbab account manager by using the column's place and the hashtag to leverage a broader message. Third, at this stage of the formation of the assessment material follower or member account @duniajilbab community formed differing opinions. While the fourth stage of the confirmation, the interaction between the @duniajilbab account manager with the followers occurs through interaction and interaction like the button column comment.

Tujuan dari penelitian ini yaitu, (1) untuk mengetahui tahap persiapan, (2) tahap penyebaran materi; (3) tahap pembentukan materi; (4) untuk mengetahui tahap konfirmasi materi konstruksi pesan dakwah akun Instagram @duniajilbab. Metode Penelitian yang digunakan adalah metode deskriptif dengan jenis pendekatan kualitatif. Setelah melakukan penelitian, dapat disimpulkan bahwa Pesan-pesan dakwah yang diunggah pengelola akun selama bulan  Juni 2018 sebanyak 16 pesan dakwah. Yang dibagi, berdasarkan kategori pesan dakwah (akidah, Syari’ah dan akhlak), jenis-jenis pesan dakwah dan, teknik komunikasi.  Adapun, konstruksi pesan dakwah yang dilakukan dengan empat tahap, pertama, tahap menyiapkan materi dakwah   yang dibuat oleh para pengurus dan juga followers, kedua, tahap sebaran konstruksi dilakukan dengan mengunggah pesan dakwah dengan menggunakan kolom place dan hashtag untuk sebaran pesan yang lebih luas. Ketiga, pada tahap pembentukan materi penilaian follower atau anggota komunitas akun @duniajilbab terbentuk opini yang berbeda-beda. Sedangkan keempat tahap konfirmasi, interaksi antara pengelola akun @duniajilbab dengan para followers terjadi melalui interaksi tombol like dan interaksi kolom comment.