bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Modeling of Air Pollutants and Greenhouse Gases Emissions in Intermodal Transport Chains
Authors: Ramalho Mónica M. , Santos Tiago A.
Published: June 2021

This paper discusses the most attractive emission compliance options (emission abatement technologies and cleaner fuels) in intermodal transport chains that include short sea shipping. Most studies on emissions-based transport chain comparisons have estimated high levels of nitrogen and sulfur oxide emissions in maritime transportation, decreasing its competitiveness. However, the consequences of regulatory and technological developments and the integration of maritime transport in intermodal transport chains have not yet been considered in detail. In order to address this research gap, a numerical model for computing emissions from different transport modes in an intermodal transport network, under the effect of these developments, is presented that is based on bottom–up emission factors that depend on the fuel type, engine type, and operational profile of each vehicle. Different emissions scenarios are chosen for specific unimodal and intermodal routes (short sea shipping-based) between Portugal and northwestern Europe. Conclusions are drawn on estimated values of air pollutant emissions and greenhouse emissions, in CO2-eq per unit of cargo, in each scenario. These results allow the identification of the most environmentally friendly transport chains, thus supporting the development of adequate transport policies.
Influence of Writing Instruction on Spanish Heritage Learners in Heritage-Only and Mixed Courses: A Longitudinal Study
Authors: Hurtado Irati , Gastañaga Kacie
Published: June 2021

University Spanish courses designed specifically for heritage language learners (HLLs) are becoming more common, and researchers have indicated that empirical research is needed to evaluate their effectiveness. This longitudinal study investigates the writing development of 24 HLLs as a result of instruction over the course of the semester. Nine were enrolled in a heritage-only section of a Spanish composition course, and the remainder were from mixed HL/L2 sections of the same course. Both section types were taught online. The major assignments the students produced were two 500-word essays, and students also completed bi-weekly forum posts. We examined the development of lexical density, sophistication, and diversity as well as syntactic complexity and accuracy by comparing each student’s first and final essay and forum posts. Findings indicate that there were significant differences between the scores received on the forum posts in comparison to the essays. However, there were no significant developmental differences in terms of group. Implications, avenues for future research, and pedagogical suggestions are discussed.
Special Issue: Advances in Computational Electromagnetics
Authors: De Santis Valerio
Published: June 2021

Recent advances in computational electromagnetics (CEMs) have made the full characterization of complex magnetic materials possible, such as superconducting materials, composite or nanomaterials, rare-earth free permanent magnets, etc [...]
Obstructive Sleep Apnea and Periodontal Disease: A Systematic Review
Authors: Lembo Daniela , Caroccia Francesco , Lopes Chiara , Moscagiuri Francesco , Sinjari Bruna , D’Attilio Michele
Published: June 2021

Background and Objectives: The objective of this study was to evaluate the association between periodontal disease and obstructive sleep apnea syndrome (OSAS). Materials and Methods: Electronic search using PubMed, Scopus, LILACS, and Cochrane library was carried out for randomized controlled trials, cohort, case-control, longitudinal and epidemiological studies on humans published from January 2009 until September 2020. The participants had to be male and female adults who were diagnosed with OSAS either by overnight polysomnography (carried out at a sleep laboratory or at home) or by a home sleep testing monitor (Apnea Risk Evaluation System). Methodological quality assessment was carried out using the Newcastle-Ottawa Quality Assessment Scale (NOS) for case-control studies while an adapted form of NOS was used for cross-sectional studies. Results: Ten studies fulfilled the inclusion criteria of our review, 5 were case-control studies, and 5 cross-sectional. Sample size ranged from 50 to 29,284 subjects, for a total of 43,122 subjects, 56% of them were male, their age ranged from 18 to 85 years old. The heterogeneity among the studies regarding the classification of periodontal disease, and the different methods for OSAS severity assessment, complicated the comparison among the studies. Conclusions: There is low evidence of a possible association between OSAS and periodontitis. The pathophysiological mechanism, cause-effect, or dose-response relationship are still unclear. Further studies are needed and should use a precise classification of OSAS subjects, while the new classification of periodontitis from the World Workshop of Chicago 2017 should be used for the periodontal assessment.
Epigenetic Silencing of MicroRNA-126 Promotes Cell Growth in Marek’s Disease
Authors: Gennart Isabelle , Petit Astrid , Wiggers Laetitia , Pejaković Srđan , Dauchot Nicolas , Laurent Sylvie , Coupeau Damien , Muylkens Benoît
Published: June 2021

During latency, herpesvirus infection results in the establishment of a dormant state in which a restricted set of viral genes are expressed. Together with alterations of the viral genome, several host genes undergo epigenetic silencing during latency. These epigenetic dysregulations of cellular genes might be involved in the development of cancer. In this context, Gallid alphaherpesvirus 2 (GaHV-2), causing Marek’s disease (MD) in susceptible chicken, was shown to impair the expression of several cellular microRNAs (miRNAs). We decided to focus on gga-miR-126, a host miRNA considered a tumor suppressor through signaling pathways controlling cell proliferation. Our objectives were to analyze the cause and the impact of miR-126 silencing during GaHV-2 infection. This cellular miRNA was found to be repressed at crucial steps of the viral infection. In order to determine whether miR-126 low expression level was associated with specific epigenetic signatures, DNA methylation patterns were established in the miR-126 gene promoter. Repression was associated with hypermethylation at a CpG island located in the miR-126 host gene epidermal growth factor like-7 (EGFL-7). A strategy was developed to conditionally overexpress miR-126 and control miRNAs in transformed CD4+ T cells propagated from Marek’s disease (MD) lymphoma. This functional assay showed that miR-126 restoration specifically diminishes cell proliferation. We identified CT10 regulator of kinase (CRK), an adaptor protein dysregulated in several human malignancies, as a candidate target gene. Indeed, CRK protein levels were markedly reduced by the miR-126 restoration.
Confounding Factors Influencing the Kinetics and Magnitude of Serological Response Following Administration of BNT162b2
Authors: Bayart Jean-Louis , Morimont Laure , Closset Mélanie , Wieërs Grégoire , Roy Tatiana , Gerin Vincent , Elsen Marc , Eucher Christine , Van Eeckhoudt Sandrine , Ausselet Nathalie , David Clara , Mullier François , Dogné Jean-Michel , Favresse Julien , Douxfils Jonathan
Published: June 2021

Background: Little is known about potential confounding factors influencing the humoral response in individuals having received the BNT162b2 vaccine. Methods: Blood samples from 231 subjects were collected before and 14, 28, and 42 days following coronavirus disease 2019 (COVID-19) vaccination with BNT162b2. Anti-spike receptor-binding-domain protein (anti-Spike/RBD) immunoglobulin G (IgG) antibodies were measured at each time-point. Impact of age, sex, childbearing age status, hormonal therapy, blood group, body mass index and past-history of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection were assessed by multivariable analyses. Results and Conclusions: In naïve subjects, the level of anti-Spike/RBD antibodies gradually increased following administration of the first dose to reach the maximal response at day 28 and then plateauing at day 42. In vaccinated subjects with previous SARS-CoV-2 infection, the plateau was reached sooner (i.e., at day 14). In the naïve population, age had a significant negative impact on anti-Spike/RBD titers at days 14 and 28 while lower levels were observed for males at day 42, when corrected for other confounding factors. Body mass index (BMI) as well as B and AB blood groups had a significant impact in various subgroups on the early response at day 14 but no longer after. No significant confounding factors were highlighted in the previously infected group.
Encapsulated Mixture of Methyl Salicylate and Tributyrin Modulates Intestinal Microbiota and Improves Growth Performance of Weaned Piglets
Authors: Wei Yusen , Mao Jiangdi , Liu Jingliang , Zhang Yu , Deng Zhaoxi , Lv Jiaqi , He Maolong , Liu Jianxin , Wang Haifeng
Published: June 2021

Tributyrin and essential oils have been used as alternatives to antimicrobials to improve gut health and growth performance in piglets. This study was to evaluate the effects of a dietary supplement with two encapsulated products containing different combinations of tributyrin with oregano or with methyl salicylate on growth performance, serum biochemical parameters related to the physiological status, intestinal microbiota and metabolites of piglets. A total of 108 weaned crossbred piglets (Yorkshire × Landrace, 21 ± 1 d, 8.21 ± 0.04 kg) were randomly divided into three groups. Piglets were fed with one of the following diets for 5 weeks: a basal diet as the control (CON); the control diet supplemented with an encapsulated mixture containing 30% of methyl salicylate and tributyrin at a dosage of 3 kg/t (CMT); and the control diet supplemented with an encapsulated mixture containing 30% of oregano oil and tributyrin at a dosage of 3 kg/t (COT). At the end of the feeding trial, six piglets from each group were slaughtered to collect blood and gut samples for physiological status and gut microbiological analysis. The study found that the CMT group was larger in feed intake (FI) (p < 0.05), average daily gain (ADG) (p = 0.09), total protein (TP), albumin (ALB), glutathione peroxidase (GSH-PX) (p < 0.05), blood total antioxidant capacity (T-AOC) (p < 0.05), and crypt depth in the ileum (p < 0.05) compared with the CON group. The genus abundance of Tissierella and Campylobacter in the CMT group was significantly decreased compared with the CON group. The CMT group also resulted in significantly higher activity in amino acid metabolism and arginine biosynthesis compared with the CON group. The COT group was larger in T-AOC, and the genus abundance of Streptophyta and Chlamydia was significantly increased in the ileum compared with the CON group. Data analysis found a significantly high correlation between the genus abundance of Chlamydia and that of Campylobacter in the ileum. The genus abundance of Campylobacter was also positively correlated with the sorbitol level. In general, the results indicated that the supplementation of both encapsulated mixtures in diet of weaned piglets could improve the animal blood antioxidant capacity. Additionally, the encapsulated mixture of methyl salicylate plus tributyrin improved the growth performance and resulted in certain corresponding changes in nutrient metabolism and in the genus abundance of ileum microbial community.
A Versatile Quantum Simulator for Coupled Oscillators Using a 1D Chain of Atoms Trapped near an Optical Nanofiber
Authors: Holzmann Daniela , Sonnleitner Matthias , Ritsch Helmut
Published: June 2021

The transversely confined propagating light modes of a nanophotonic optical waveguide or nanofiber can effectively mediate infinite-range forces. We show that for a linear chain of particles trapped within the waveguide’s evanescent field, transverse illumination with a suitable set of laser frequencies should allow the implementation of a coupled-oscillator quantum simulator with time-dependent and widely controllable all-to-all interactions. Using the example of the energy spectrum of oscillators with simulated Coulomb interactions, we show that different effective coupling geometries can be emulated with high precision by proper choice of laser illumination conditions. Similarly, basic quantum gates can be selectively implemented between arbitrarily chosen pairs of oscillators in the energy as well as in the coherent-state basis. Key properties of the system dynamics and states can be monitored continuously by analysis of the out-coupled fiber fields.
Performance Analysis of Dual-Hop Mixed Power Line Communication/Free-Space Optical Cooperative Systems
Authors: Le-Tran Manh , Kim Sunghwan
Published: June 2021

In this paper, we study a mixed cooperative communication system consisting of power line communication (PLC) and free-space optical communication (FSO) links, where the PLC link suffers from log-normal fading and is affected by both impulsive and background noises. Meanwhile, the FSO link undergoes Gamma-Gamma fading with both atmospheric turbulence and pointing errors. More specifically, we present closed-form expressions for the probability density function and the cumulative distribution function of the end-to-end signal-to-noise ratio of the proposed model. Consequently, the outage probability and the bit error rate (BER) performance are derived in terms of univariate Fox-H and bivariate Fox-H functions. Finally, the analytical results are verified using Monte Carlo simulations, providing useful insights into the capabilities of the proposed system.
Design of a Surface Plasmon Resonance Temperature Sensor with Multi-Wavebands Based on Conjoined-Tubular Anti-Resonance Fiber
Authors: Wang Qiming , Zhang Xuenan , Yan Xin , Wang Fang , Cheng Tonglei
Published: June 2021

In this work, a surface plasmon resonance (SPR) temperature sensor based on a con-joined-tubular anti-resonance optical fiber (CTF) was theoretically designed and analyzed using the finite element method. The CTF cladding was composed of eight pairs of conjoined tubes, and one or two holes of the tubes were selectively coated with gold to generate the SPR effect. Alcohol was injected into the core of the CTF to work as the sensing medium using vapor deposition. The proposed sensing structure exhibited excellent birefringence and produced more than six resonant peaks in different wavebands of the X and Y polarization. The positions of those resonant peaks were sensitive to temperature change, and the simulated sensitivity was about 3.2–3.6 nm/°C. The multiple working wavebands of the proposed sensing structure could be used for self-verification. Moreover, the influence of structural parameters on sensing performance was analyzed in detail. Possessing features of high sensitivity, good birefringence, multiple measuring wavebands, and self-verification, the proposed CTF-based SPR sensor has great potential in practical applications such as biological research and chemical sensing.
Phytoextraction of Heavy Metals by Various Vegetable Crops Cultivated on Different Textured Soils Irrigated with City Wastewater
Authors: Ahmad Iftikhar , Malik Saeed Ahmad , Saeed Shafqat , Rehman Atta-ur , Munir Tariq Muhammad
Published: June 2021

A challenging task in urban or suburban agriculture is the sustainability of soil health when utilizing city wastewater, or its dilutes, for growing crops. A two-year field experiment was conducted to evaluate the comparative vegetable transfer factors (VTF) for four effluent-irrigated vegetable crops (brinjal, spinach, cauliflower, and lettuce) grown on six study sites (1 acre each), equally divided into two soil textures (sandy loam and clay loam). Comparisons of the VTF factors showed spinach was a significant and the best phytoextractant, having the highest heavy metal values (Zn = 20.2, Cu = 12.3, Fe = 17.1, Mn = 30.3, Cd = 6.1, Cr = 7.6, Ni = 9.2, and Pb = 6.9), followed by cauliflower and brinjal, while lettuce extracted the lowest heavy metal contents (VTF: lettuce: Zn = 8.9, Cu = 4.2, Fe = 9.6, Mn = 6.6, Cd = 4.7, Cr = 2.9, Ni = 5.5, and Pb = 2.5) in response to the main (site and vegetable) or interactive (site * vegetable) effects. We suggest that, while vegetables irrigated with sewage water may extract toxic heavy metals and remediate soil, seriously hazardous/toxic contents in the vegetables may be a significant source of soil and environmental pollution.
Examining Land Use/Land Cover Change and Its Prediction Based on a Multilayer Perceptron Markov Approach in the Luki Biosphere Reserve, Democratic Republic of Congo
Authors: Michel Opelele Omeno , Ying Yu , Wenyi Fan , Chen Chen , Kaiko Kachaka Sudi
Published: June 2021

Villages within the Luki Biosphere Reserve and the surrounding cities have undergone rapid demographic growth and urbanization that have impacted the reserve’s natural landscape. However, no study has focused on the spatiotemporal analysis of its land use/land cover. The present research aims at providing a comprehensive analysis of land use/land cover change in the Luki Biosphere Reserve from the year 1987 to 2020, and to predict its future change for the year 2038. Landsat images were classified in order to provide land use/land cover maps for the years 1987, 2002, 2017 and 2020. Based on these maps, change detection, gradient direction, and landscape metric analyses were performed. In addition, land use/land cover change prediction was carried out using the Multilayer Perceptron Markov model. The results revealed significant land use/land cover changes in the Luki Biosphere Reserve during the study period. Indeed, tremendous changes in the primary forest, which lost around 17.8% of its total area, were noted. Other classes, notably savannah, secondary forest, built-up area, fallow land and fields had gained 79.35, 1150.36, 67.63, 3852.12 hectares, respectively. Based on the landscape metric analysis, it was revealed that built-up areas and fallow land and fields experienced an aggregation trend, while other classes showed disaggregation and fragmentation trends. Analysis further revealed that village expansion has significantly affected the process of land use/land cover change in the Luki Biosphere Reserve. However, the prediction results revealed that the primary forest will continue to increase while built-up area, fallow land and fields will follow a trend similar to a previous one. As for secondary forest and savannah, the forecast revealed a decrease of the extent during the period extending from 2020 to 2038. The present findings will benefit the decision makers, particularly in the sustainable natural resources management of the Luki Biosphere Reserve.
Financial Strain and Loneliness among Young Adults during the COVID-19 Pandemic: The Role of Psychosocial Resources
Authors: Refaeli Tehila , Achdut Netta
Published: June 2021

The COVID-19 (2019 novel coronavirus) pandemic, which has been accompanied by an economic crisis and multiple restrictions on our lives, has sparked renewed interest in the topic of loneliness as well as its determinants. We examined (1) the association between financial strain, occurring upon the outbreak of the virus, and loneliness among Israeli young people (aged 20–35); (2) the associations between cognitive social capital, psychological resources, and loneliness; and (3) whether these social and psychological resources were moderators in the financial strain–loneliness link. A real-time survey based on snowball sampling was conducted during April 2020 (N = 426). Hierarchical linear models were employed to explore associations between financial strain, cognitive social capital, psychological resources, and loneliness. Financial strain emerging during the pandemic was associated with greater loneliness. Cognitive social capital and optimism decreased loneliness. Sense of mastery moderated the financial strain–loneliness link. Policymakers must develop and extend mental health initiatives aimed at alleviating the psychological consequences of the pandemic and must also combat financial strain via unemployment compensation and social assistance programs. In line with the United Nations sustainable development goals, these tasks should be viewed as an integral part of promoting public health.
Extended Spectrum Beta-Lactamase Escherichia coli in River Waters Collected from Two Cities in Ghana, 2018–2020
Authors: Banu Regina , Alvarez Jorge , Reid Anthony , Enbiale Wendemagegn , Labi Appiah-Korang , Ansa Ebenezer , Annan Edith , Akrong Mark , Borbor Selorm , Adomako Lady , Ahmed Hawa , Mustapha Mohammed , Davtyan Hayk , Owiti Phillip , Hedidor George , Quarcoo Gerard , Opare David , Kikimoto Boi , Osei-Atweneboana Mike , Schmitt Heike
Published: June 2021

Infections by Extended-Spectrum Beta-Lactamase producing Escherichia coli (ESBL-Ec) are on the increase in Ghana, but the level of environmental contamination with this organism, which may contribute to growing Antimicrobial Resistance (AMR), is unknown. Using the WHO OneHealth Tricycle Protocol, we investigated the contamination of E. coli (Ec) and ESBL-Ec in two rivers in Ghana (Odaw in Accra and Okurudu in Kasoa) that receive effluents from human and animal wastewater hotspots over a 12-month period. Concentrations of Ec, ESBL-Ec and percent ESBL-Ec/Ec were determined per 100 mL sample. Of 96 samples, 94 (98%) were positive for ESBL-Ec. concentrations per 100 mL (MCs100) of ESBL-Ec and %ESBL-Ec from both rivers were 4.2 × 104 (IQR, 3.1 × 103–2.3 × 105) and 2.79 (IQR, 0.96–6.03), respectively. MCs100 were significantly lower in upstream waters: 1.8 × 104 (IQR, 9.0 × 103–3.9 × 104) as compared to downstream waters: 1.9 × 106 (IQR, 3.7 × 105–5.4 × 106). Both human and animal wastewater effluents contributed to the increased contamination downstream. This study revealed high levels of ESBL-Ec in rivers flowing through two cities in Ghana. There is a need to manage the sources of contamination as they may contribute to the acquisition and spread of ESBL-Ec in humans and animals, thereby contributing to AMR.
Evaluating the Accuracy of Gridded Population Estimates in Slums: A Case Study in Nigeria and Kenya
Authors: Thomson Dana R. , Gaughan Andrea E. , Stevens Forrest R. , Yetman Gregory , Elias Peter , Chen Robert
Published: June 2021

Low- and middle-income country cities face unprecedented urbanization and growth in slums. Gridded population data (e.g., ~100 × 100 m) derived from demographic and spatial data are a promising source of population estimates, but face limitations in slums due to the dynamic nature of this population as well as modelling assumptions. In this study, we compared field-referenced boundaries and population counts from Slum Dwellers International in Lagos (Nigeria), Port Harcourt (Nigeria), and Nairobi (Kenya) with nine gridded population datasets to assess their statistical accuracy in slums. We found that all gridded population estimates vastly underestimated population in slums (RMSE: 4958 to 14,422, Bias: −2853 to −7638), with the most accurate dataset (HRSL) estimating just 39 per cent of slum residents. Using a modelled map of all slums in Lagos to compare gridded population datasets in terms of SDG 11.1.1 (percent of population living in deprived areas), all gridded population datasets estimated this indicator at just 1–3 per cent compared to 56 per cent using UN-Habitat’s approach. We outline steps that might improve that accuracy of each gridded population dataset in deprived urban areas. While gridded population estimates are not yet sufficiently accurate to estimate SDG 11.1.1, we are optimistic that some could be used in the future following updates to their modelling approaches.
Prevalence and Temporal Dynamics of White Line Disease in Sheep: An Exploratory Investigation into Disease Distribution and Associated Risk Factors
Authors: Best Caroline , Roden Janet , Phillips Kate , Pyatt Alison , Behnke Malgorzata
Published: June 2021

Lameness in sheep is a global health, welfare and economic concern. White line disease (WLD), also known as shelly hoof, is a prevalent, non-infectious cause of lameness, characterised by the breakdown of the white line. Little is known about the predisposing factors, nor the individual disease dynamics over time. Our exploratory study aimed to investigate the prevalence and temporal dynamics of WLD, and the associated risk factors. Feet of 400 ewes from four UK commercial sheep farms were inspected for WLD at four time points across 12 months. The change in WLD state at foot-level (develop or recover) was calculated for three transition periods. We present WLD to be widespread, affecting 46.8% of foot-level and 76.6% of sheep-level observations. States in WLD changed over time, with feet readily developing and recovering from WLD within the study period. The presence of WLD at foot-level, the number of feet affected at sheep-level and dynamics in development and recovery were driven by a variety of foot-, sheep- and farm-level factors. We provide key insight into the multifaceted aetiology of WLD and corroborate previous studies demonstrating its multifactorial nature. Our study highlights an opportunity to reduce WLD prevalence and informs hypotheses for future prospective studies.
Strategies for the personnel election for a specific position
Authors: Perepelova Anna , Sazonova Svetlana
Published: June 2021

How to evaluate candidates properly leaving the search process behind? While having a list of candidates on our hands it is very important to choose the best one, and only afterwards we should develop a proper situational leadership system. It is necessary to have the “right” people on the “right positions”, and the choice should be made by using a number of approaches to personnel selection and evaluation.
Anti-epidemic measures against the proliferation of the novel coronavirus infection SARS-COV-2
Authors: Dmitrenko Zoya
Published: June 2021

The novel coronavirus infection (COVID-19) is an acute respiratory disease caused by a new coronavirus (SARS-CoV-2). The SARS-CoV-2 virus is assigned to the II group of pathogenicity in accordance with the sanitary legislation of the Russian Federation. The infection is included in the list of diseases that pose a danger to others (the Government Decree of the Russian Federation from 31.01.2020 No. 66). Dental facilities are at epidemiological risk; all patients are considered as potentially infected with hemocontact and aspiration infections. Disinfection in dental institutions is carried out according to the regime between viruses and fungi of the genus Candida; the mask regime is continuous. The protection against infections of the patient and medical personnel in dental institutions has always been an extremely urgent problem and especially now, during the period of the new coronavirus infection SARS-CoV-2. The purpose of medical dental institutions is to prevent and implement measures to interrupt the transmission of infections related to the provision of medical care (IRMC).
caráter educativo na formação acadêmica dos/as assistentes sociais
Authors: Couto Gonçalves Taciane
Published: June 2021

O presente artigo contou com uma pesquisa documental e trata do caráter educativo do trabalho dos/as assistentes sociais a partir de uma análise da formação profissional. Acredita-se que uma das razões pelas quais o tema não vem sendo o de maior preocupação e investimento intelectual entre os/as profissionais deve-se a sua ausência nas orientações gerais, construídas pelas entidades da própria profissão, para a formação acadêmica e atuação profissional. A leitura de alguns documentos de cursos situados na região leste da ABEPSS possibilitou identificar que o tema está subsumido nos próprios documentos normativos do Serviço Social (no caso, nas diretrizes curriculares e currículos plenos).
Synthesis and characterization of stable aqueous dispersion of silver nanoparticle from citrullus vulgaris seed oil via lecithin
Authors: Barnabas Henry L. , A.M Ngoshe , A Gidigbi Joshua
Published: June 2021

Nanoparticles are known to be of wide applications in various fields of human endeavours. Many methods of syntheses such as physical, chemical are harmful to the environment, thus, this study utilised green production of nanoparticles via waste product such as Citrulus vulgaris seed. Oil was extracted using soxhlet extractor from the prepared Citrulus vulgaris seed. Physico-chemical properties such as percentage yield, acid value, peroxide value were carried out on the Citrulus vulgaris seed oil. Citrulus vulgaris was further processed to form lecithin. The lecithin extracted was characterized for colour, Peroxide Value, Acetone Insoluble (AI), Acid Value, solubility in water and organic solvents. The result of the physico-chemical parameters was in conformity with the standard and various literatures. Therefore, lecithin is processed into dispersed aqueous silver nanoparticles by the addition of silver nitrate. The chemical reaction was monitored progressively using visual assessment, UV-visible and FTIR Spectroscopy. The size and surface of the dispersed silver nanoparticles produced was analysed using Atomic Force Microscopy. Therefore, a dispersed aqueous silver nanoparticle was produced from lecithin made from Citrulus vulgaris seed oil.
METHODS OF GEODETIC SUPPORT CADASTRE OF URBAN LAND SATELLITE AND TERRESTRIAL TECHNOLOGIES
Authors: Ибрагимова Э.И. , Гайрабеков И.Г.
Published: June 2021

К числу важнейших сведений кадастра недвижимости относят геодезические материалы. Геодезические данные представляют собой значения координат характерных точек, описывающих границы пространственного положения объекта недвижимости. Традиционные геодезические приборы и технологии не способны сегодня обеспечить качественное и оперативное геодезическое сопровождение кадастровых работ. В то время как внедряемые новые технологии геодезических измерений и построений обладают рядом преимуществ и могут заменить традиционные технологии. Благодаря оснащению приборов современным программным обеспечением и вводу в эксплуатацию роботизированных станций, позволяющих без участия человека производить измерения, работа кадастровых инженеров стала более эффективной. В данной статье описываются основы геодезических работ кадастра земель. Поставлена цель рассмотреть технологические этапы инженерногеодезических изысканий. Для достижения цели поставлены следующие задачи: рассмотреть методы геодезических съемок с применением GNSSтехнологий, уделить внимание конструктивным особенностям приборов и оборудования для этого вида работ, а также программным продуктам, которые применяются для обработки информации.

Among the most important information of the real estate cadastre include geodetic materials. These data represent the coordinate values of the characteristic points describing the boundaries of the spatial position of the property. Traditional surveying instruments and technologies are not able today to provide highquality and operational geodetic support of cadastral works. While the introduction of new technologies of geodetic measurements and constructions have a number of advantages and can replace traditional technologies. Thanks to the equipment of devices with modern software and commissioning of robotic stations, allowing without human intervention to make measurements, makes the work of cadastral engineers more efficient. This article describes the basics of surveying land cadastre. The aim is to consider the technological stages of engineering and geodetic surveys. To achieve the goal, the following tasks: to consider methods of surveying using GNSS technologies, to pay attention to the design features of devices and equipment for this type of work, as well as software products that are used for information processing.
IMPLEMENTATION COMPETENCY-BASED APPROACH IN DISTANCE LEARNING
Authors: Исаева М.З.
Published: June 2021

Данная статья посвящена проблеме современной системы образования, связанная с востребованностью выпускника программы бакалавриата, актуальностью полученных им знаний и его профессиональной деятельностью в современных условиях. В настоящий момент необходимо выработать и внедрить такие приемы и методы обучения в вузе, которые были бы нацелены на активизацию творческого потенциала студента, его желания обучаться. На основе новых информационных и педагогических технологий стало возможным совершенствовать методы обучения. Современная система образования позволяет формировать необходимые компетенции с применением дистанционных технологий, популярность которых за последние годы существенно возросла. Современная система обучения ориентируется на компетентностный подход, который означает, что в процессе обучения ставится цель сформировать у студентов набор компетенций, позволяющих ему легче самореализоваться в современном обществе.

The article discusses the main problem of the modern education system that is related to the demand for Bachelor Degree Program graduates, relevance of their knowledge and their professional activity in current conditions. Contemporary education system is in need of such learning methods and techniques that will activate the creative potential and learning motivation of students. New information and educational technologies have enabled the improvement of the teaching methods. Modern education system allows to form the required competencies with the application of distant technologies which are becoming more and more popular now. The modern system of education is competencybased, which means that the process of training is aimed at the formation of a set of competencies that will simplify the students to fulfill their potential in the modern society.
DIALOGUE OF CULTURES AND SEARCH OF NEW STRATEGIES OF EXISTENCE OF MANKIND IN THE CONDITIONS OF MODERN GLOBALIZATION
Authors: Акаев В.Х. , Дохаева А.Б. , Мамадиева М.Х.
Published: June 2021

Современные процессы глобализации имеют немало положительных сторон, сопряженные с улучшением экономического положения людей, перемещением товаров по всему миру, освоением новых технологий, демократическими, модернизационными процессами. Вместе с тем у глобализации имеются и негативные стороны, негативно воздействующие на этнические, национальные культуры, верования, порождающие масштабные социально-классовые расслоения в различных обществах, падение уровня социальной справедливости, нравственности, возникновение экстремистских и террористических проявлений, истоки которых далеко не всегда ясны. Эти процессы предполагают осуществление диалога в различных структурах организации общества, межличностных, межгрупповых, межгосударственных. Через диалог между людьми, странами, государствами необходимо осуществлять поиск новых интеграционных ценностей, которые могли бы способствовать поиску новых стратегий глобального развития человечества.

Modern processes of globalization have many positive aspects associated with the improvement of the economic situation of people, the movement of goods around the world, the development of new technologies, democratic, modernization processes. However, globalization has a negative side that negatively impact ethnic, national culture, beliefs, generating major social and class stratification in different societies, the decline of social justice, morality, the emergence of extremist and terrorist manifestations, the origins of which are not always clear. These processes involve dialogue in various structures of the organization of society, interpersonal, intergroup, and interstate. Through dialogue between people, countries, States, it is necessary to search for new integration values that could contribute to the search for new strategies for the global development of mankind.
DESCRIPTION OF INFORMATION FLOWS DURING MONITORING THE EMPLOYMENT OF GRADUATES OF THE GROZNY STATE TECHNICAL UNIVERSITY NAMED AFTER ACADEMICIAN M. D. MILLIONSCHIKOVA
Authors: Исаева М.З. , Хаджиева Л.К.
Published: June 2021

Проблема трудоустройства выпускников российских университетов не нова и касается каждого выпускника, окончившего высшее учебное заведение. Статья посвящена проблеме совершенствования процесса управления трудоустройством выпускников вуза, пути их решения по средствам сотрудничества работодателей и вузов. В статье описаны информационные потоки при проведении мониторинга трудоустройства как внутри образовательного учреждения, так и при взаимодействии с внешней средой. Приведены примеры основных служб поддержки трудоустройства студентов и обоснованность ведения мониторинга занятости выпускников вузов, также актуальность использования автоматизированной информационной системы содействия трудоустройству (АИСТ). Рассмотрены методики мониторинга трудоустройства и методы качественных исследований: фокус-группы, глубинные интервью, анализ протокола. Описаны основные методы количественных исследований: экспертный опрос, анкетирование, контент-анализ.

The problem of employing graduates of Russian universities is not new and concerns every graduate who has graduated from a higher educational institution. The article is devoted to the problem of improving the process of managing the employment of graduates, ways to solve them by means of cooperation between employers and universities. The article describes the information flows during the monitoring of employment both within the educational institution and in interaction with the external environment. Examples of the main student employment support services and the validity of monitoring the employment of university graduates are given, as well as the relevance of using an automated information system for promoting employment (AIST). The methods of monitoring employment and methods of qualitative research are considered: focus groups, in-depth interviews, protocol analysis. The main methods of quantitative research are described: expert survey, questionnaire, content analysis
INFOCOMMUNICATION TECHNOLOGIES AS OBJECT MANAGEMENT SYSTEMS
Authors: Тасуева Х.Х. , Хасамбиев И.В.
Published: June 2021

Данная статья направлена на исследование системы управления объектов как составляющей инфокоммуникационной технологии. Прежде чем говорить об инфокоммуникационных технологиях, надо иметь представление о том, чем являются инфокоммуникации. Инфокоммуникации это естественное расширение телекоммуникаций с функциями обработки информации и обработки контента, включая все виды электронных коммуникаций (фиксированная и мобильная телефония, передача данных, медиасообщение, радиовещание и т.д.), на основе единой цифровой технологии, в основном с использованием интернет-технологий. Система управления управляет, командует, направляет или регулирует поведение других устройств или систем, используя контуры управления. Она может варьироваться от одного контроллера отопления дома с использованием термостата, управляющего бытовым котлом, до крупных промышленных систем управления, которые используются для управления процессами или машинами.

This article is aimed at the study of the facility management system as a component of information and communication technology. Before talking about infocommunication technologies, one must have an idea of what infocommunications are. Infocommunications is a natural extension of telecommunications with information processing and content processing functions, including all types of electronic communications (fixed and mobile telephony, data transmission, media communication, broadcasting, etc.) Based on a single digital technology, mainly using Internet technologies. The control system controls, commands, directs, or regulates the behavior of other devices or systems using control loops. It can range from a single home heating controller using a thermostat controlling a domestic boiler, to large industrial control systems that are used to control processes or machines.
CHARACTERISTICS OF DEVELOPMENT OF THE CHINESE INNOVATION SYSTEM
Authors: Абдулкадырова М.А. , Кудозова Х.А.
Published: June 2021

В данной статье рассматривается азиатская модель инновационной системы на примере Китайской Народной Республики. Хотя любое азиатское государство, в котором в той или иной степени применяется эффективная инновационная система, имеет свои особенности, Китайская инновационная система является одной из наиболее заметных и быстроразвивающихся. Особый упор в данной статье делается на крупные инновационные компании Китая.

This article discusses the Asian model of an innovation system using the example of the Peoples Republic of China. Although any Asian state in which an effective innovation system is applied to one degree or another has its own characteristics, the Chinese innovation system is one of the most visible and rapidly developing. Particular emphasis in this article is placed on large innovative companies in China.
İstanbul Sözleşmesi: Twitter Üzerinden Sözleşmeye Karşı Çıkanların Görüşlerine Yönelik Bir Söylem Analizi
Authors: AKAR Eylül , BAYAR Öznur , KOÇTÜRK Nilüfer
Published: June 2021

Dijital aktivist hareketler, düşüncenin kitlelere ifade edilmesinde oldukça etkilidirler. Bunlar arasında en fazla kullanılan tür olan hashtag aktivizminin en yaygın kullanıldığı yerlerden biri Twitter sosyal medya platformudur. Bu çalışmanın amacı, ulusal ve uluslararası öneme sahip olan “İstanbul Sözleşmesi” başlığı altında atılan destekleyici ve karşı çıkan tweetlerin bazı özelliklerinin (oran, dayanak noktası) ve sözleşmeye karşı çıkan tweetlerin içeriğinin söylem analizi ile incelenmesidir. Bu amaç doğrultusunda, Twitter ’da 1 Nisan 2020 ve 20 Kasım 2020 tarihleri arasında “#istanbulsozlesmesi”, “istanbulsozlesmesiyasatir” ve “#istanbulsozlesmesiihanettir” etiketleri ile paylaşılan 252 sayıda tweet seçkisiz yolla seçilerek ele alınmıştır. Ardından seçilen bu tweetlerin içerikleri incelenerek paylaşılan tweetler sözleşmeyi destekleyen ve sözleşmeye karşı çıkan olarak iki grupta kategorize edilmiştir. Bu kategorizasyon iki bağımsız araştırmacı tarafından gerçekleştirilmiştir. Araştırmacılar arasında kodlayıcılar arası görüş birliği yüzdesi %95 olarak hesaplanmıştır. Sonrasında, karşı çıkan kategoride yer alan tweetler üzerinde söylem analizi yapılmıştır. Bulgulara göre İstanbul Sözleşmesini destekleyen ve sözleşmeye karşı çıkan tweet sayısı birbirine yakın bulunmuştur. Sözleşmeye karşı çıkan söylemlerin dayanak noktaları sıklıkla, aile yapısını bozma, şiddeti önlememe ve LGBTİ’ye zemin hazırlama şeklindedir. Bu nedenler, İstanbul sözleşmesinin içeriği ve ilgili alanyazın çerçevesinde tartışılmıştır. Ayrıca bu çalışma tamamlandıktan sonra Türkiye Cumhuriyeti’nin İstanbul Sözleşmesi’nden çekildiği kararı açıklanmıştır. Bu karar sonrasında sözleşmeye karşı çıkan tweetlerin içeriğinde değişimler meydana gelmiş olabilir. Bu bakımdan konu ile ilgili paylaşımların tekrar incelenmesi önemli görülmektedir.
Analisis Keaktifan Kader Posyandu dalam Pelaksanaan Kegiatan Posyandu
Authors: Juliana Widyastuti Wahyuningsih
Published: June 2021

Posyandu merupakan usaha kesehatan yang dilakukan dari, oleh dan untuk masyarakat, yang dalam pelaksanaanya dilakukan oleh kader yang bersifat dasar. Penelitian ini bertujuan untuk mendapatkan informasi yang mendalam tentang keaktifan kader posyandu di Desa Gedung Agung Kecamatan Merapi Timur Kabupaten Lahat yang berkaitan dengan  pengetahuan, sikap kader posyandu, sarana dan prasarana kesehatan yang ada di posyandu serta peran tokoh masyarakat. Metode yang digunakan adalah studi analisis deskriftif dengan menggunakan pendekatan kualitatif. Informasi didapat dengan menggunakan Wawancara Mendalam (WM) dengan informan kunci 4 orang dan Focus Group Discussion (FGD) sebanyak 2 kelompok atau 16 orang. Informasi dianalisa secara manual, keabsahan informasi dilakukan dengan cara Triangulasi sumber dan Triangulasi metode. Dari hasil penelitian terhadap informasi  peserta FGD diketahui bahwa pengetahuan mengenai tugas dan peran kader sudah cukup baik, walaupun mereka hanya menjelaskan secara garis besarnya saja, hal inipun sama dengan hasil peserta WM bahwa mereka masih sangat kurang dalam menyampaikan pengetahuan mengenai tugas dan peran kader posyandu. Untuk sikap yang diberikan oleh peserta FGD dan WM sudah cukup baik walaupun masih ada dari peserta FGD yang bersikap kurang perduli dengan tugas dan perannya di posyandu. Sarana dan prasarana kesehatan yang ada sudah dapat digunakan dalam pelaksanaan kegiatan posyandu walaupun masih perlu dilengkapi lagi. Untuk peranan Kepala Desa sebagai tokoh masyarakat cukup mendukung dengan pelaksanaan kegiatan posyandu. Disimpulkan bahwa pengetahuan mengenai tugas dan peran kader di posyandu sangat penting untuk menunjang keaktifan kader posyandu. Adapun saran – saran yang diajukan kiranya dapat bermanfaat dan menunjang semua pihak khususnya kader posyandu desa Gedung Agung Kecamatan Merapi Kabupaten Lahat.
Reversibility of the knockdown effect at application of aerosols against pyrethroid-resistant house flies
Authors:   Scientific Research Disinfectology Institute of Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Davlianidze Tatyana Alekseevna
Published: June 2021

Knockdown resistance to pyrethroids and pyrethrins is the first sign of insecticide resistance, suggesting a decrease in insect nervous system sensitivity. On the Russian market of insecticides, there are many products in the aerosol package intended for the destruction of flying insects, which include pyrethroids, which provide a quick knockdown effect in insecticide susceptible insect strains. In resistant populations, in many cases, the reversibility of paralysis is observed, which indicates insufficient effectiveness of insecticidal products. The insecticidal activity of four products in aerosol package containing pyrethroids or pyrethrins in various concentrations on houseflies in natural populations was studied in comparison with the insecticide susceptible against laboratory on strain S-NIID. The most effective formulation was on the basis of natural pyrethrins. The reversibility of paralysis of resistant populations was detected using all aerosols and amounted to 0–37 % for the Kaluga strain, 10–93 % for the Krasnogorsk, KSK-1 0–87 %, KSK-2 20–99 %, S-NIID 0 %.