bluuebunny/crossref_metadata_2025 huggingface dataset:
Gender differences in developmental delay among of 6-10 years old children
Authors: Rani Nigam , Balda Shanti
Published: May 2020

The present study was carried out in two cultural zones (Khadar and Mewat) of Haryana state. Two hundred children in the age group of 6-10 years from two cultural zones were assessed for their developmental level in gross and fine motor, cognitive, language, social and emotional domains. A checklist was prepared to assess developmental level children. Results revealed no significant differences between developmental status of boys and girls for gross-motor (t=2.29), fine-motor (t=0.12), cognitive (0.12), language (t=0.57), social (t=0.48), emotional (t=0.59) and overall development (t=1.51) of boys and girls. From Khadar zone, results depicted that for gross-motor (t=0.19), fine-motor (t=0.00), cognitive (t=0.00), language (t=0.93), social (t=0.29), emotional (t=0.00) and overall development (t=0.48) of boys and girls were not different. Similarly in Mewat cultural zone, results revealed that there was no difference in developmental status of boys and girls with delayed milestones. Independent sample t-values for gross-motor (t=2.89), fine-motor (t=0.17), cognitive (t=0.17), language (t=0.22), social (t=0.44), emotional (t=0.76) and overall development (t=1.73) were not found to be significant.
Voice of the Learning-Disabled Adolescents
Authors: Sehgal Jyoti , Srivastava Anupama
Published: May 2020

The present research aimed to understand the concerns of 20 Learning-Disabled adolescents in their academic and Non-academic areas. This was an exploratory study using interview method, that probed expression of the challenges they face in their school. The sample was selected in a child guidance clinic in Delhi. They were led by directional open-ended questions, leading them to talk about their concerns in academic and non-academic areas. Findings indicated their feelings of dejection and demotivation, inappropriate manner of teaching, choice of subjects, judgements based on marks and feeling unheard. They were restricted for games, library, zero-periods, third language and activity periods and were taught by special educators instead of subject specialised teachers. This added to conflicts, maladjustment, inappropriate labelling, loss of peer group and a feeling of inadequacy. They added that reduced and simplified content, compromised expectations, simpler subjects offered by the boards have made the academic journey easier, but it has also kept their potentials from full bloom.
The Relationship between Perceived Parenting Style and Aggression Behavior of Adolescents: In The Case of Tanahaike grade 9th School Adolescents: a Means for Intervention, BahirDar, Ethiopia
Authors: Bayu Bezabih Mezgebu
Published: May 2020

The main purpose of this study was to examine the relationship between perceived parenting style and aggressive behavior of adolescents in case of Tanahaik secondary school grade 9th students. Correlational research design was employed and 50 sample students were selected through simple random sampling technique. The required data was collected via adapted instruments from previously conducted researches by (Dornbusch, 1987), Buss and Perry,1992), and Eysenck (1997) then the data was analyzed by using Pearson moment correlation coefficient, stepwise regression, independent sample t-test and one sample t- test. The result of the study revealed that correlation result was permissive and neglectful parenting styles have relationship with aggressive behavior of students, the stepwise regression result was indicated that Permissive parenting styles was statistically significant to predict Aggressive behavior, the independent sample t-test there was no statistically significant difference between male and female students in theiraggression behavior and one sample t-test result shoed that the level of aggression behaviour is high among students of TanaHaik grade 9th adolescents. It recommended university and school counselors should provide training for adolescents to be empathetic and sensitive to the suffering of others that may help adolescents to control their own aggression. Parents, caregivers and teachers should be able to teach adolescents problem solving skills.
An Analysis of Expenditure Determinants of Muslim Tourists in Korea
Authors:   The Tourism Sciences Society Of Korea, Bae Hyung-Keun , Lee Hee-Chan
Published: May 2020

This study analyzed determinants of expenditure for the purpose of attracting high value-added Muslim tourists to expand the tourism market in Korea. We used the 2018 Foreign Tourist Survey' data from the Ministry of Culture, Sports and Tourism's' and included tourists from Malaysia, Indonesia and Middle East in the analysis. The Tobit model was used to estimate expenditure determinants. As a result of the estimation, various mutual influential relations were found for each spending item. The total expenditure increases with being a male and getting older. The total expenditure also increased when a visitor is traveling alone or a visitor revisited Korea. Shopping spending was higher when a visitor was in Korea solely for traveling purposes, was highly satisfied with trips to Korea, and was a returning tourists. Food and beverage expenditures were higher for tourists who visited alone. Lastly, expenditures on cultural entertainment were higher among women, those who visited Korea solely for traveling purposes, and individual travel types. On the other hand, expenditures on cultural entertainment were lower for tourists traveling with family, traveling alone, and first-time visitors to Korea.
Influence of Tourism Contents Quality on YouTube and Source Credibility on Perceived Enjoyment, User Satisfaction and Behavioral Intention
Authors:   The Tourism Sciences Society Of Korea, Choi Soo-Jin
Published: May 2020

This study aims to fill the gap of literature regarding the users of tourism contents in YouTube, and their attitude toward using Youtube as a tourism information source as well as their characteristics and preference of information type on YouTube. The purpose of this study is to explore the impact of information quality of YouTube Tourism contents and credibility of YouTuber delivering the tourism information on the users’ information satisfaction and behavioral intention. This study further examined the role of perceived enjoyment in the relationships among Youtube content quality, source credibility, user satisfaction, and behavioral intention. A total 464 online surveys were collected, and structural equation modelling was used for data analysis. The study results indicated that quality of tourism contents on YouTube and the YouTubers' credibility significantly influenced users’ satisfaction and behavioral intentions. Perceived enjoyment mediated the relationships between content quality, source credibility, and users’ satisfaction. Findings suggests several theoretical and managerial implications.
A do-it-yourself low-cost agarose gel documentation and DNA quantification system v1
Authors: Rachel A Howard-Till Rachel , E Osorio Claudia , Olivos Marcos , J Till Bradley
Published: May 2020

This protocol describes how to build your own agarose gel documentation system to create digital images for quantification of DNA stained with dyes that fluoresce under blue LED light. Free software and inexpensive materials are used that can save tens of thousands of dollars when compared to similar commercial products.
Technological Socialization and Digital Inclusion: Understanding Digital Literacy Biographies among Young People in Madrid
Authors: Calderón Gómez Daniel
Published: May 2020

The main goal of this article is to analyze young people’s technological socialization experiences to build a comprehensive model of the distinctive digital literacies interwoven with their biographies. Considering that digital accessibility is a necessary but not sufficient condition for inclusion, we identify which types of digital literacies are linked to the acquisition of digital competencies, confidence, and dispositions towards the incorporation of ICTs into daily activities; on the other hand, we also identify digital literacies that might engender motivated processes of self-exclusion from the digital realm, therefore reinforcing subjects’ digital exclusion. Methodologically, this article is based on 30 in-depth biographically-oriented qualitative interviews with young people living in the region of Madrid, Spain. Regarding results, four techno-social dimensions are proposed—motivation, degree of formality, degree of sociality, and type of technological domestication—to construct a typology of four ideal forms of digital literacy: unconscious literacy, self-motivated literacy, professional literacy, and social support. To achieve digital inclusion, self-motivation towards using digital technologies is mandatory, but social practices, academic and professional literacy might work as a secondary socialization process that enhance subjects’ affinity with ICTs. Nevertheless, the effect of social support is ambivalent: It could promote digital inclusion among people already interested in digital technologies, but it could also lead to dynamics of self-exclusion among people who are not confident regarding their digital competencies or disinterested in ICTs.
Effective Experiences: A Social Cognitive Analysis of Young Students’ Technology Self-Efficacy and STEM Attitudes
Authors: Huang Kuo-Ting , Ball Christopher , Cotten Shelia R. , O’Neal LaToya
Published: May 2020

The development of computer skills, as well as computer self-efficacy, has increased in importance along with the role of technology in everyday life. Childhood is a critical time for the development of these skills since early inequalities may substantially impact future life outcomes. In a context of a computing intervention designed to improve digital inclusion, we hypothesize that students’ enactive learning experience (conceptualized as their computer usage) and their vicarious learning experience (conceptualized as their perception of their teacher’s computer usage) are associated with the development of perceived technology efficacy and STEM (Science, Technology, Education, and Math) attitudes. Data are from a sample of elementary school students from an urban school district in the Southeastern United States. The results show that both their direct experiences and their perception of their teacher’s computer usage have strong impacts on students’ technology efficacy and STEM attitudes, and the former is the stronger predictor of the outcomes examined. The findings suggest that programs aiming to improve digital inclusion should emphasize students’ direct learning experience, which would later improve their attitude toward STEM fields.
Social Support for Digital Inclusion: Towards a Typology of Social Support Patterns
Authors: Asmar Axelle , Van Audenhove Leo , Mariën Ilse
Published: May 2020

This article contributes to a better understanding of patterns of social support in relation to digital inequalities. Based on an extensive qualitative study, the diversity of support networks and supports seeking patterns are unveiled. A typology of six patterns of help-seeking is presented and described: the support-deprived, the community-supported, the supported through substitution, the network-supported, the vicarious learners, and the self-supported. The article also critically engages with the often unnuanced academic literature on social support. The research and the typology reveal that the quality of support, as well as the availability of potential or actual support, is not only influenced by socio-economic factors. Rather, the strength of the relationship and the level of intimacy between individuals is an important predictor of support-seeking. As such, this article shows that mechanisms of in/exclusion are highly social, as they entail a diversity of formal and informal support-seeking patterns, which in turn have an important influence on the adoption and use of digital media. The article argues that understanding such mechanisms is rooted in reconciling micro-level interactions to macro-level patterns of inequalities. To show the specificity of social support within digital inequalities research, and to demarcate the concept from definitions of other academic disciplines, the concept of social support for digital inclusion is introduced. It is defined as the aid (emotional, instrumental, and informational) that an individual receives from his/her network in his/her use of digital technologies.
Digital Inclusion as a Core Component of Social Inclusion
Authors: Reisdorf Bianca , Rhinesmith Colin
Published: May 2020

There is a large body of research that has examined digital inequities, inequalities, and divides—i.e., those countries, communities, and individuals digitally left behind or disadvantaged. Whereas we know quite a lot about what is lacking and for whom, there is less focus on what works to alleviate these inequalities and divides in a variety of cultural contexts. This thematic issue brings together scholarship on digital inclusion initiatives and research from over 20 countries and in the context of numerous aspects, including different types of initiatives as well as different types of target audiences for these initiatives. Each article provides unique insights into what does and does not work in various communities, making recommendations on what could be done to improve the examined initiatives. We hope that the breadth and depth of articles presented here will be useful not just for academic audiences seeking to broaden their understanding of digital inclusion and ‘what can be done’ rather than focusing on ‘what is amiss,’ but also for policymakers and digital inclusion initiatives who are eager to expand and advance their digital inclusion work within their communities.
How Historical Seismology Can Benefit from Bureaucracy: The Case of the “Lettere Patenti” in the City of Rome in 1703
Authors: Tertulliani Andrea , Graziani Laura , Esposito Alessandro
Published: May 2020

The 1703 Mw 6.9 seismic sequence (I0 11 Mercalli–Cancani–Sieberg scale) was one of the most important crises ever occurred in Italy and has left a deep mark on the seismic history of cities and towns of central Italy. Abundant documents testify the damage suffered by the city of Rome during this sequence; however, the descriptions are mainly referred to monumental buildings. For the recent macroseismic practice, such edifices are not statistically representative when used for assessing macroseismic intensity; instead, the information about residential housing provides reliable data especially when using the European Macroseismic Scale 1998. In this work, we show that useful information regarding the ordinary residential stock can be retrieved in the bureaucratic documentation, apparently distant from the repertoires traditionally used for historical seismology studies. In particular, we used administrative acts granted by the government of Rome to authorize maintenance works on the external parts of the buildings, namely the “Lettere Patenti.” The scrutiny of these sources allowed us to enrich the available dataset introducing 93 new damage points found on civil building stock spread in the historic center of Rome. The new dataset contributes to better define the picture of the effects of the 1703 seismic sequence in Rome, which allowed us to assess macroseismic intensity with more confidence.
Construction of Human Neuromuscular Disease-Related Gene Site-Specific Mutant Cell Line by Cas9 Mutation System
Authors: Zhang Yinbing , Wang Yuxin , Du Cheng
Published: May 2020

Objective: to construct human neuromuscular disease-related gene site-specific mutant cell line by Cas9 mutation system. Methods: according to the principle of CRISPR/Cas9 target design, the exon region of CXCR4 gene sequence was found in the National Center for Biotechnology Information (NCBI) of the United States. Two sgRNAs were designed. Lenticrisprv2 was used as the vector to construct the lenticrisprv2-sgrna recombinant plasmid, which was transformed into the sensitive stbl3 strain. The monoclonal sequencing was selected to verify and expand the culture of the plasmid, then it was transferred to 293T cells for packaging to a slow virus. The virus was collected and infected with 4T1 cells. The monoclonal cells were isolated and cultured by puromycin screening and limited dilution method. The genomic DNA of the selected monoclonal cells was extracted and the DNA fragment near the knockout site was amplified by PCR and sequenced. Results: one cell line had 6 deletion mutations, including DYSF mutation site of neuromuscular disease gene and HEK293T cell model knocked out by DYSF mutation site of neuromuscular disease gene. Conclusion: the recombinant plasmid targeting CXCR4 gene was obtained by CRISPR/Cas9 system, and the human neuromuscular disease-related gene site-specific mutant cell line was successfully constructed.
Gender differences in the pool of free amino acid neurotransmitters in Krushinsky-Molodkina rats
Authors: Krivopalov S.A. , Yushkov B.G. , Bykova M.Yu. , Zabegalov K.N.
Published: May 2020

The study of the role of neurotransmitter systems in the pathogenesis of epilepsy is one of the priorities of epileptology. New data on the functions of free neurotransmitter-like amino acid in the central nervous system are of the greatest importance and determine the prospects for the development of novel effective anticonvulsants. It is widely believed in clinical medicine that epilepsy has distinct gender characteristics. The aim of this study was to investigate the gender peculiarities in the content of neurotransmitter amino acids in the brain of Krushinsky-Molodkina (KM) rats, which were used as model organisms for the study of genetically induced audiogenic epilepsy. The content of Asp, Glu, GABA, Gly, and Tau of the medulla oblongata, hippocampus and cerebral cortex were determined using high-performance liquid chromatography (HPLC) in intact KM rats, KM rats exposed to a series of epileptiform seizures, and Wistar rats (control group). Both the Wistar and KM rats had gender distinctions in the distribution of free amino acids among the investigated brain parts. The audiogenic epilepsy was characterized by smoothing gender differences as well as differences between the concentrations of free amino acids in the cortex and medulla oblongata, specific for Wistar rats. The changes observed in male rats after the set of seizures included the increase in GABA concentration and a decrease in the Gly level in all investigated brain parts, as well as the decrease of the Tau content in the cortex and hippocampus. At the same time, the Glu content in cortex increased, while the Asp level decreased. After 6 days of audiogenic stimulations the female KM rats demonstrated the increase in the Glu level in all investigated brain parts, the increase in Gly and Asp levels in hippocampus, and no changes in the GABA content. Thus, after the set of epileptiform seizures the KM rats achieved a new steady state of the studied amino acids pool, which differed in males and females. In this case, gender differences significantly changed after the seizures.
Molecular docking study and experimental evaluation of potential CTLA-4 binding peptides
Authors: Podlesnykh S.V. , Lampatov V.V. , Khlebnikov A.I. , Chapoval A.I.
Published: May 2020

Current advances in research of immune checkpoints CTLA-4, PD-1, PD-L1, opened new possibilities for effective cancer immunotherapy using monoclonal antibodies. However, antibodies have a number of limitations for clinical use, which provides a basis for the search for low molecular weight compounds capable of regulating (blocking) molecules that inhibit the immune response. This paper presents the results of molecular docking and evaluation of synthetic peptide interaction with a CTLA-4 molecule. Using mathematical modeling, it was shown that peptides interacted with the 99MYPPPY104 loop of the CTLA-4 protein and could potentially block the interaction of the CTLA-4 receptor with its natural ligand B7-1. The specificity of the interaction between the identified peptide and recombinant chimeric CTLA-4 protein was evaluated. The detected synthetic peptide can be used for the development of immunomodulatory drugs for therapy of cancer or autoimmune diseases.
The Database ‘Revolution’
Authors: Kerssens Niels
Published: May 2020

In this article, I counter persistent claims of big data revolutionising managerial decision making, by tracing the technological and cultural origins of data-based management in the United States back to the 1970s and 1980s using historical source materials from the trade magazine Datamation. I argue that innovations in database technology within this period – database management systems and the relational database model – shaped and reinforced a data-based mindset. This mindset, I demonstrate, is manifested in four interlinked concepts of data: data as asset, data as raw, data as reality, and data as relatable. These concepts, I argue, provide a basis for current associations of big data with ideological values of objectivity and truthfulness. The article contributes to a growing body of work in media and communication studies that deconstructs the ideological discourses facilitating big data’s unquestioned integration in the business world.
A Culture of Competition
Authors: Stauff Markus
Published: May 2020

This article considers the contribution of sports to the emergence of a contemporary big data culture. Why and how did media sports become so entangled with big data? How do media sports impact on the popularisation of big data as a cultural practice and as a cultural imaginary? In the first part of the article, I demonstrate how, as early as the nineteenth century, the standardisation and serialisation of sport competitions went hand in hand with a growing relevance of quantified evaluation of performances. Sports contributed to the modern ‘avalanche of numbers’ and thus became an important symbolic resource for the broader implementation of a data-based, ‘normalistic’ regulation of social practices. In the second part, I focus on the implementation of a public representation of actual big data practices in professional sports. Starting with a short overview of an initially slow-moving, but eventually comprehensive, appropriation of advanced statistical calculations and other big data practices since the 1970s, I analyse examples that illustrate the controversies around and the public legitimisation of metrics and data visualisation. My main claim is that sport, because of its historically long and close entanglement with numbers, both stimulates a naturalisation of datafied competition and fuels an ongoing debate about the quality and implications of different forms of metrics.
From Text Mining to Visual Classification
Authors: Olesen Christian Gosvig , Kisjes Ivan
Published: May 2020

Focusing on the specific case of cinema owner and film distributor Jean Desmet’s digitised business archive, this article discusses how computational approaches may facilitate the archive’s unlocking for researchers in the Dutch national research infrastructure – CLARIAH –Media Suite. To this end, the article considers previous computational approaches to film- related sources in New Cinema History research in a historical perspective, suggesting a novel approach which combines text mining and visual classification. The article argues that such a combination is necessary to yield results which reflect the archive’s material heterogeneity and complexity, and that it offers a new direction for computational approaches in New Cinema History and their conceptualisations of film-related materials as historical sources.
X-RAY ANALYSIS OF THE POSITION OF THE RUDIMENTS OF ABNORMALLY LOCATED LOWER THIRD MOLARS DURING THEIR FORMATION AND GROWTH
Authors: Morozova Marina , Dem'yanenko Svetlana , Marchenka Natalia , Kirichenko Vyacheslav , Romanova Ekaterina , Morozov Andrey
Published: May 2020

Subject. The issues of indications, contraindications and the optimal timing for the removal of abnormally located lower third molars remain relevant in dentistry. Numerous evidence has been accumulated of their negative impact on the formation of the dentofacial system, however, X-ray patterns of patients with this pathology in the process of their formation, development and change in the angle of inclination, as well as the growing problems associated with the growth of these teeth in the dentition and bite have not been studied.

The goal is to study the dynamics of the position of the rudiments of the abnormally located lower third molars in the process of their formation and growth and their influence on the state of the dentofacial system as a whole.

Methodology. The study involved 28 patients with abnormally located impressive lower third molars, which were divided into 3 groups: in the first (8 people), the second molars were at the teething and growth stage, in the second (12 people) the second molar was in the occlusal plane at the stage closed apex, in the third (8 people) there was a multiple abnormal position of the mesially located teeth from the third molar. All measurements were performed using a virtual measuring device in the image mode of slices with Galileos Viewer software.

Results. According to our results, a significant scatter was recorded in the timing of the formation of third molars from the period of mineralization of the crown of the teeth (12―15 years) to the end of growth and root formation (18―23 years). After 23 years, the roots of the abnormally located lower third molars in the patients examined by us had radiological signs of the end of formation (closed apex).

Conclusion. Impact lower third molars continue their growth and have a negative effect on the condition of the teeth located mesial. This fact does not depend on concomitant orthodontic pathology, nor on the methods of orthodontic treatment (removable or non-removable equipment).
CLINICAL, LABORATORY AND ECONOMIC JUSTIFICATION OF ORTHOPEDIC TREATMENT OF PATIENTS WITH A NEW DEVICE FOR RESTORING THE MISSING CLINICAL CROWN OF PREMOLARS
Authors: Matrosov Vladislav
Published: May 2020

Thing. A new substantiated method of orthopedic treatment of patients with complete destruction of the crown of the tooth is described, objective results of its use are given, and an economic analysis of its use is carried out in comparison with the traditional method of treatment of such patients.

The goal is to create a device for restoring the missing clinical crown of premolars and its clinical, laboratory and economic justification.

Methodology. During the study, orthopedic treatment of 20 patients with complete destruction of the crown of the tooth was carried out. A clinical assessment of the effectiveness of treatment using targeted radiography, occlusion and quality of life of patients was conducted using the OHIP-14 RU questionnaire. The compressive strength of ceramic coatings was studied for 10 samples of our device and 10 samples with a traditional ceramic-metal crown. The economic effect of our proposed method is analyzed in comparison with the traditional one.

Results. 1 month after the treatment, a favorable outcome was observed in all patients on targeted radiographs; during occlusionography, 10 % of patients showed slight premature contacts in lateral occlusion, which were eliminated by selective grinding. 95 % of patients rated the quality of life as good, 5 % ― unsatisfactory. Safety margin of ceramic coating on samples of our device was 2.4 times higher than on samples of a traditional device. The economic efficiency of the traditional method in comparison with the one we proposed below has a ratio of 1:1.35, respectively. To restore one missing clinical tooth crown, the difference in cost between these methods is 21.2 %, or 1536 rubles.

Conclusions. The results of the study allow us to recommend our proposed device for active use in practical dentistry in the treatment of patients with complete destruction of the clinical crown of premolars.
FEATURES OF OVERDENTURE TOOTH REPLACEMENT IN CHILDREN AND ADOLESCENTS WITH CONGENITAL ADENTIA AND ECTODERMAL
Authors: Galonsky Vladislav , Tarasova Natalia , Chernov Vladimir , Gradoboev Anatoly
Published: May 2020

Subject. Congenital adentia in children and adolescents related ectodermal dysplasia is a rare pathology in dental practice. Scientific articles of this problemare some case reports. The theory and practice of overdenture tooth replacement in children has a number of identifying features on clinical management of patients. There is no information on this problemin the contemporary literature.

Purpose ― improvement of efficiency of orthopedic treatment of children and adolescents with congenital adentia and ectodermal dysplasia on the basis of development of clinical guidelines on peculiarities of removable dental prosthesis in this category of patients.

Methodology. The work is based on the 24 of orthopaedic rehabilitation for patients aged 3 to 12, with hypohydrotic ectodermal dysplasia syndrome and congenital adenia. Dental prosthetics were performed using removable structures. In terms of 6 months to 2.5 years, due to the growth of jaws, new prostheses were manufactured. Distant observation periods were up to 18 years.

Results. The features of removable dental prosthesis in this category of patients, which are important and effective in practical activity, are formulated in the form of successive 18 basic postulates (initial provisions adopted without evidence), which are clinical guidelines for practical application and "Check list for care of removable dental prostheses and their use" for children and their parents.

Conclusion. The developed clinical guidelines on practical aspects of the features of removable dental prosthesis in children with congenital adenatia and ectodermal dysplasia are an effective tool for increasing the effectiveness of orthopedic treatment of this category of patients. Compliance with these guidelines allows improving adaptation of children to removable orthopedic structures, reducing the number of complications, providing optimal conditions for growth and development of toothless areas of jaws, facial skeleton, in accordance with age-related physiological standard.
Diagnóstico y manejo de hidramnios
Authors: Zapata Leonor
Published: May 2020

Es definido como la acumulación excesiva de líquido amniótico, unos 2.000 mi al final de la gestación, este es el concepto clásico donde quedan excluidas ciertas acumulaciones agudas de líquido presentes en etapas mas tempranas del embarazo (1).
Ultrasonido en obstetricia
Authors: Sarmiento Andrés
Published: May 2020

Se revisa el ultrasonido como técnica diagnóstica dentro del contexto obstétrico moderno. Se enuncian aspectos de su clasificación, indicaciones, seguridad y uso rutinario. Se comenta acerca de las posibles implicaciones médico legales de la práctica sonográfica en la obstetricia actual.
Adenocarcinoma de Cérvix
Authors: Urdaneta Tovar Hernán
Published: May 2020

Se presenta una revisión del Adenocarcinoma de cérvix en sus aspectos epidemiológicos, diagnóstico en estados iniciales y colposcópicos.
Embarazo ectópico: elección de diferentes modalidades terapéuticas
Authors: Pérez Agudelo Luis Ernesto
Published: May 2020

Los avances diagnósticos con bHCG, progesterona (P), ecografía transvaginal (ECO-TV), y laparoscopia (LPS) nos permiten detectar precozmente el 80% de los Embarazos Ectópicos (EE) aún asintomáticos.
Dynamic and stress analysis of the main drive system in design process of an innovative fruit-vegetable washer
Authors: Bui V.P. , Gavrushin S.S. , Phung V.B. , Danilenko T.K. , Dang H.M. , Prokopov V.S.
Published: May 2020

This paper describes a new drum-type fruit-vegetable washer, which is created on the basis of manual vegetable washing method. The main driving part of the washer is a crank mechanism with springs. The main drive design process is proposed to be carried out in two stages: dynamic research and strength analysis. The results of dynamic research show the effect of spring stiffness on reducing dynamic reactions in the crank mechanism as well as the required engine power, in other words, on reducing washer vibration and energy consumption. Stress analysis was performed using the finite element software package ABAQUS. The design process allows selecting a set of acceptable parameters for the main drive of the washer. This result is used to create a prototype of an innovative fruit-vegetable washer.
Extension of the spacecraft launch windows to determinate accessible areas on the Venus surface in the frame of the Venera-D project
Authors: Eismont N.A. , Koryanov V.V. , Fedyaev K.S. , Bober S.A. , Zubko V.A. , Belyaev A.A.
Published: May 2020

The paper considers the problem of finding accessible areas on the Venus surface and the prospect of their increasing by extension of launch windows during the period from 2026 to 2031; taking into account the restrictions on the payload weight and the maximum overload level affecting the lander during the descent in the Venus atmosphere. The project of the Venera-D mission is used as the initial data for the work. The possibility of reaching the planet on the first and second half-turns of the heliocentric transfer orbit is analyzed. As an example, the effect of the launch window expansion for 2031 on the nature of changes in the accessible landing areas is considered. Possible payload weight expenses for launch window expansion are estimated. The launch windows are selected by solving the Lambert problem, where the transit spacecraft momentum near the Earth for the flight to Venus along the first and second half-orbit paths at the period from 2026 to 2042 is calculated. The accessible landing area is shown when increasing the launch windows initially adopted for 2031.The estimation of payload weight expenses for increasing the launch windows is performed.
ДЕМОГРАФИЧЕСКИЙ АСПЕКТ ЭКОНОМИЧЕСКОЙ БЕЗОПАСНОСТИ ГОСУДАРСТВА
Authors: Анофриков Сергей Павлович , Афончикова Вера Алексеевна
Published: May 2020

Актуальность исследования определяется тем, что на современном этапе развития международных отношений экономическая безопасность государства становится ключевым фактором при принятии стратегических решений. Государство, заботящееся о своем будущем, обязано учитывать численность и качество своих трудовых ресурсов и населения в целом. Цель: рассмотреть влияние демографической составляющей на уровень экономической безопасности государства. Методы: сравнительно-сопоставительный анализ статистических и научных материалов, анализ процесса старения населения. Результаты. Рассмотрены нормативно-правовые акты, посвященные вопросам экономической безопасности и демографической политики государства, представлены данные о старении населения в России и в мире, приведены показатели суммарного коэффициента рождаемости, коэффициента демографической нагрузки пожилыми и коэффициента перспективной демографической нагрузки пожилыми людьми, а также показатели миграционного прироста населения России.  Сформулирован общий вывод о существенном влиянии демографической составляющей на экономическую безопасность государства.
Teachers’ views on support by environmental non-governmental organizations in selected Alexandra Township primary schools
Authors: Mawela Solomon Ailwei
Published: May 2020

This article explores teachers’ views regarding the support by environmental non-
governmental organizations in managing environmental education (EE) projects in
primary schools. In this qualitative case study research, a purposive sampling
approach was used to sample thirteen (n=13) teachers from thirteen primary
schools. Data was collected by means of using semi-structured interviews and
findings were analysed and discussed. The study was grounded in the total quality
management theory and the interpretive paradigm, as it was concerned with the
management of environmental education projects in primary schools. In order to
examine how the environmental NGOs and, teachers’ management of environmental
education projects in schools, the researcher drew on the concept of opportunity to
learn (OTL). Findings indicated that teachers viewed environment NGOs as valuable
in sharing the knowledge, skills, and experience in managing EE projects. Lack of
time and resources were identified as additional barriers towards managing
environmental projects in primary schools. Teachers were not trained as
environmental educators, and they viewed managing EE projects in schools as
additional work. Therefore, despite the efforts made by environmental NGOs
managing school EE projects, the sustainability of these projects after NGOs
disengagement was a problem in most schools. The article concludes with
suggestions based on the findings, outlining how environmental NGOs can impart
knowledge and skills in managing EE projects towards awareness of and
involvement in the fight against pollution and the desecration of natural resources.
Development of Android Based Information System Media about Plant Diversity in Alas Purwo National Park
Authors: Astari Sindi Ayu , Mudakir Imam , Iqbal Mochammad
Published: May 2020

Abstract

The aim of this study is to develop Android based information system media about plant diversity in Alas Purwo National Park. This study is a developmen reserach  using a 4-D development model (4 D model . Data collection methods used in this study were interviews, documentation, and expert validations. The result of this study about the validation of android based information system was all off expert validation evaluated this media very valid with a percentage of 89.55% in category quantitative assessment. In qualitative assessment, these media need to little modification such as in use of a source of the picture and more efficient to explant about plant description in the media
Microbiology Factor Measurement as Indoor Air Quality Parameter in Public Space
Authors: Pamungkas Oktofa Setia , Nirwala Henny Ayu , Pardede Dina Mala
Published: May 2020

Nearly 90% of people spend their time in both private and public indoor spaces. Bank is one of the public indoor spaces accessible to the community, as well as a place for some workers spending time every day. This study was conducted in 6 banking sectors in Samarinda, East Kalimantan, focusing on the existence of microorganisms such as bacteria and fungi/mold. The purpose was to investigate the number of microorganisms, both bacteria and fungi, contained in indoor areas of several bank offices in Samarinda. The results showed that the number of bacteria and fungi at several sampling points in 6 offices were above the standard of Permenaker RI No. 5 the year of 2018 and Permenkes RI No. 48 the year of 2016, i.e.,>700 cfu/m3 for bacteria and >1000 cfu/m3 for fungi.
Effect of Variations in Sugar Addition to the Quality of Bamboo Shoot Syrup (Dendrocalamus asper)
Authors: Sayuna Soleman , Ngginak James , Nitsae Merpiseldin
Published: May 2020

Bambu betung (Dendrocalamus asper) merupakan tumbuhan berumpun yang memiliki fase tumbuh melalui tunas (rebung). Rebung memiliki kandungan fosfor, vitamin A, vitamin C, serat mineral dan protein yang baik untuk tubuh. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh variasi penambahan gula terhadap kualitas sirup rebung betung. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan rancangan acak lengkap (RAL) untuk uji sifat organoleptik. Variasi penambahan gula yang digunakan dalam penelitian ini adalah 50%, 55%, 60% dan 65%. Hasil uji vitamin C secara berturut - turut adalah 2,112%, 3,256%, 4,136%, dan 5,016%.  Hasil uji protein secara berturut – turut untuk setiap perlakuan adalah 0,25%, 0,15%, 0,24%  dan 0,17%. Hasil uji kadar air menunjukkan 0,073%, 0,063%, 0,056% dan 0,056%. Serta hasil uji oganoleptik (kekentalan, rasa dan kesukaan) menunjukkan perlakuan terbaik terdapat pada kosentrasi gula 65% dengan nilai 3.8000, 3.4667 dan 3.6000. Hasil penelitian ini menunjukkan terdapat pengaruh variasi gula terhadap vitamin C, kadar air dan organoleptik, akan tetapi tidak memiliki pengaruh terhadap kadar protein. Perlu adanya penelitian lanjutan untuk mengetahui nilai gizi lemak, Karbohidrat, Vitamin A, vitamin B1 (Thiamin), Vitamin B2 (Ribovlavin), Fe, K, Ca, P, Na dan uji mikrooganisme.
In-Silico Analysis for cryI Gene Amplification from Bacillus thuringiensis
Authors: Wahyuni Febriana Dwi , Saraswati Henny , Dewi Kartika Sari
Published: May 2020

Abstract

Bacillus thuringiensis is one type of bacteria that has been used as a microbiological control agent for pests and a vector of plant disease. The presence of Cry proteins inside the B. thuringiensis can be acted as a specific insect repellent that only toxic to certain insects. The CryI protein is toxic to Lepidoptera insects which can attack various types of plants. Polymerase Chain Reaction (PCR) is a common method that can be used to amplify the gene encoding CryI proteins from B. thuringiensis. This research aimed to design a good primer candidate for cryI gene amplification from B. thuringiensis. In silico analysis for designing cryI primer was carried out using some software, such as BLAST for searching cryI gene sequence, Bioedit for sequences alignment, and DINAmelt for analyzing dimer structure of primers. Ten primer candidates were successfully obtained based on the result of the primer3 software. A pair of primer was selected to amplify the cryI gene, with forward primer 5’- CGGTGAATGCCCTGTTTACT -3’ and reverse primer 5’-CGGTCTGGTTGCCTATTGAT -3’. Amplification of the cryI gene by PCR method using selected primer resulting in a PCR product with a length of approximately 200 bp.
L’acidose latente chez la vache laitière
Authors: PEYRAUD J.L. , APPER-BOSSARD E.
Published: May 2020

L’acidose latente constitue aujourd’hui une cause d’inefficacité zootechnique des rations bien établie et est de ce fait l’une des préoccupations majeure pour la nutrition moderne des ruminants à haut potentiel. Les vaches laitières sont amenées à traiter des quantités très importantes de matière organique rapidement fermentescible dans le rumen ce qui met en péril le contrôle de l’acidité ruminale et à terme l’homéostasie de l’animal. Les facteurs à risques sont maintenant bien connus. Au premier rang figurent le niveau d’ingestion, les glucides à dégradation rapide et le hachage excessif des ensilages de maïs. S’il n’est pas toujours souhaitable de réduire le niveau d’ingestion, on peut réduire les risques en limitant les niveaux d’apport de glucides à dégradation très rapide (blé, orge, pulpes) et en veillant à la présentation physique du fourrage. Il n’y a malheureusement pas encore de systèmes permettant de raisonner précisément les rations sur la combinaison de ces facteurs. Les rations infra-optimales peuvent être sécurisées par la distribution de tampons. Plus récemment, il est apparu que l’enrichissement en cations et le niveau d’apport de protéines sont aussi des facteurs de sécurisation des rations. La gestion des risques d’apparition d’acidose latente doit être préventive et passe par un meilleur équilibre global de la ration. En l’absence d’un système fiable de prévision des zones à risques, il est préférable de ne pas incorporer plus de 20 % de glucides rapidement dégradables dans la ration surtout si leur bilan électrolytique est faible, ce qui est le cas du blé, de l’orge et les pulpes de citrus et veiller à ce que le fourrage rendu dans l’auge ne soit pas haché trop finement. Les rations peuvent également être sécurisées par l’apport de substances tampon à raison de 1 % de la MS et /ou par un apport de cations permettant d’atteindre un bilan électrolytique proche de 200 mEq/kg MS ainsi que par le maintien d’un niveau d’apport protéique proche de 100 g PDIE/UFL. Ces précautions apparaissent plus efficaces pour gérer les excès d’acidité que l’incorporation de paille dans la ration. Il n’est pas non plus nécessaire d’apporter des protéines dégradables en excès ce qui n’aura d’autre effet que d’accroître les rejets azotés.
La reconnaissance sociale chez les mammifères : mécanismes et bases sensorielles impliquées
Authors: LIGOUT S. , PORTER R.H.
Published: May 2020

La reconnaissance sociale tient une grande place dans les interactions entre individus et donc dans l’organisation en société. La reconnaissance des individus apparentés ou non a suscité depuis les années 80 de nombreuses études portant sur les avantages adaptatifs ainsi que sur les mécanismes et bases sensorielles sur lesquels elle est basée. Ces travaux ont révélé que la reconnaissance sociale est un processus complexe et non rigide très largement répandu chez les Vertébrés. Elle peut en effet reposer sur différents mécanismes et bases sensorielles non mutuellement exclusifs et être influencée par divers facteurs. La familiarisation est le mécanisme fondamental de la reconnaissance. Elle permet l’apprentissage d’indices phénotypiques provenant des congénères ou de soi. Les apparentés de ces individus familiers peuvent également être reconnus du fait de leurs ressemblances avec ces derniers. Les indices phénotypiques qui servent de base à la reconnaissance peuvent appartenir à différentes modalités sensorielles comme l’olfaction, la vision ou l’audition et être modelés par le génome et l’environnement. De façon générale l’étude de la reconnaissance sociale permet d’avoir une meilleure connaissance du monde cognitif des animaux.
Hormones et promoteurs de croissance en productions animales : de la physiologie à l’évaluation du risque
Authors: PARIS A. , ANDRE F. , ANTIGNAC J.P. , LE BIZEC B. , BONNEAU M. , BRIANT C. , CARATY A. , CHILLIARD Y. , COGNIE Y. , COMBARNOUS Y. , CRAVEDI J.P. , FABRE-NYS C. , FERNANDEZ-SUAREZ A. , FOSTIER A. , HUMBLOT P. , LAUDET V. , LEBOEUF B. , LOUVEAU I. , MALPAUX B. , MARTINAT-BOTTE F. , MAUREL M.C. , PELICER-RUBIO M.T. , PICARD-HAGEN N. , PINAULT L. , PINEL G. , PONSARD C. , POPOT M.A. , SCHMIDELY P , TOUTAIN P.L. , ZALKO D.
Published: May 2020

Au cours des cinquante dernières années, des progrès considérables dans les performances d’élevage des espèces domestiques ont été obtenus grâce à une meilleure connaissance acquise dans le domaine de la physiologie, en particulier en ce qui concerne la nutrition, la croissance, la reproduction et la lactation, et qui s’est conjuguée aux progrès génétiques accomplis dans les différentes espèces animales dans un contexte de meilleure maîtrise sanitaire des troupeaux et de maîtrise plus fine des systèmes d’élevage en place. Le recours aux substances hormonales pour mieux maîtriser les fonctions de reproduction et de croissance a pris une place déterminante dans ce progrès. Néanmoins, une tendance profonde consistant à restreindre leur utilisation à certains moments critiques de la vie de l’animal est apparue en Europe ces quinze dernières années, obligeant à rechercher des alternatives par le biais d’une meilleure maîtrise alimentaire, génétique et des systèmes d’élevage, ceci afin de garantir aux consommateurs une meilleure qualité définie a priori des produits animaux. Les fonctions physiologiques qui offrent des possibilités d’un contrôle hormonal exogène, les substances hormonales utilisables et les spéculations animales concernées sont présentées tour à tour. Un éclaircissement sur les risques toxicologiques que présentent ces substances, le contrôle et la traçabilité de leur utilisation et les réglementations en vigueur sont ensuite rappelés. Enfin, sont évoquées les recherches qui permettront de faire progresser sensiblement la question de l’utilisation des hormones en élevage dans un contexte sociétal renouvelé.