bluuebunny/crossref_metadata_2025 huggingface dataset:
Study regarding the motivational differences of professional athletes
Authors: Ababei Radu
Published: May 2021

The subject of motivation in sports is a widely debated one in the professional literature, either by psychologists or by coaches, most of the times stopping at the identification of the main markers that favor or hurt top performance.The purpose variable in relation to the nature and aim of the sport, and to the motivation, where the results were almost identical. This study provides information regarding the reaching of motivational goals by individual and team sports athletes, by highlighting the components that will allow the athletes to face the negative psychological states successfully and to be able to express their peak performance ability.For this study, a group of 86 male athletes were selected, aged 18-25, divided into two groups, one for individual sports and one for team sports. The hypothesis was that there are not any significant differences between the individual and team sports athletes in regards to motivation.
Effectiveness of physical therapy interventions for children with cerebral palsy
Authors: Crăciun M. D. , Midrigan N.
Published: May 2021

Cerebral palsy (CP) describes a group of permanent disorders of motor development and posture that cause limiting activity that are attributed to non-progressive dysfunctions occurring in the development of fetal brain or of the child.The main purpose of the paper is to study the clinical and functional aspects with implications in the design and evaluation of the complex recovery therapy of the child with psycho-neuro-motor disabilities diagnosed with infantile cerebral palsy (ICP).The study took place during the period June 2016 - March 2018, is of the type prospectively and comprised 5 children diagnosed with ICP, aged 4 to 12 years. Criteria for inclusion in the recovery group: children diagnosed with infantile cerebral palsy form spastic tetra- spastic, without orthopedic surgery, during the study period. Children have been given a comprehensive assessment of body attitude, upper and lower limb hypertonia, upper limbs functionality, and global motor function.The major objective of recovering the child with infantile cerebral palsy was to improve the quality of life by creating conditions for minimum patient autonomy. The functional recovery program was carried out three times a week using exercises and methods of neuro-motor rehabilitation. Duration of the session was 50-60 min.Due to the results obtained at the initial and final evaluation, a tonus improvement was observed in all the tested muscles, with a decrease in the mobilization resistance of all the muscle groups. In global functional evaluation the total score on the 5 sections of the 5 children with CP had an initial mean value of 34.92 (± 16.60) and a final of 47.72 (± 26.53)Stretching, neuro-motor reeducation methods and active physical exercises help to increase the degree of the functional  independence.
Impact of quarantine, due to COVID-19, on physical activity, monitored with EEG
Authors: Bastiurea Eugen , Stan Zenovia
Published: May 2021

Due to the situation created by the emergence of Covid-19, we found that the restrictions and quarantine had a significant effect on normal activities and especially on physical activities. Physical education teachers, coaches, sports instructors, etc., were forced to change the approach of this segment of activity, from all points of view. As the promotion of physical activity has become a global priority, leading to a drastic review of this field, we used the most advanced study methods to establish the effects of quarantine and motor activities at home on brain activity.Electroencephalogram (EEG) is a method that records electrical activity on the scalp and measures voltage changes resulting from ionic current flows in brain neurons. In this case study, we monitored the EEG activity of a Pilates instructor also the manifestation of brain waves (Delta, Theta, Alpha, Beta and Gamma) during specific activities during quarantine. We assumed that this forced adaptation to indoor activity will lead to certain manifestations of the brain waves depending on the specifics of the activities (theoretical training, physical training and online teaching Pilates sessions) and will be influenced by the extension of the quarantine period.
Study on the appreciation of the level of physical condition in adults
Authors: Scurt Corneliu
Published: May 2021

The research hypothesis is based on the assumption that the factors of the physical condition under evaluation are in accordance with the level of growth and development of the tested subjects. The object of the research is the model of physical condition of the students from the final year of FPEMS. The purpose of the research is the continuous improvement and guidance of the content of the preparatory lessons in order to maintain an optimal level of physical condition, necessary to fulfil the requirements of the school program. The practical value of the research consists in the possibility to elaborate training models, by allowing the specialists to select the most effective factors that influence the level of physical condition.
Practical aspects regarding the relief of back pain with the thermal massage bed
Authors: Stan Zenovia , Bastiurea Eugen
Published: May 2021

The beneficial effects of massage beds and massage chairs are well known. They are more and more complex but also more accessible for the population. In this study, we showed the possibility of introducing the Ceragem massage bed in multidisciplinary programs for pain relief and recovery from back diseases. Although massage beds are frequently used all over the world, they are generally used only for relaxation and there are not many specialized studies that provide details about concrete ways of their use. In this study, we presented some general practical aspects regarding the use of this device and a synthesis of its efficiency of integration in physical activity sessions. We made observations during 40 months (2017-2020) over 3600 sessions in which we used the massage bed. These conclusions must be accepted with caution, because they concern only this group of subjects and the study carried out in the specific conditions of adapted motor activities.
Proyecto interdisciplinario en la enseñanza de la ingeniería para el fortalecimiento de las ciencias básicas
Authors: Paz-González Juan Antonio , Uriarte-Ramírez Irma , Rosas-Burgos Virginia Karina , Morales-Contreras Óscar Adrián
Published: May 2021

This article proposes a methodology to develop an interdisciplinary learning project, where the student of first Semester of General Education of Engineering Sciences selects a productive process according to the professional profile of the engineering of his interest from which he will identify the main competences and knowledge that he demands and relate them to the theoretical and practical knowledge developed in the courses of basic sciences. The objective is to build new knowledge structures through the integration of the different disciplines that make up the first semester of engineering to provide solutions to a common problem, in this case, the productive process. In accordance with educational trends and the information society, higher education institutions are increasingly using learning in an interdisciplinary way, since a change in the way of teaching and learning is evident in the academic environment. Another benefit of this proposal is to fight the apathy and discouragement that is perceived in students since they do not immediately visualize the purposes of the learning units because they perceive them as independent.
Análisis sobre la presencia de depresión, estrés o ansiedad y su relación con el desempeño académico en estudiantes de licenciatura
Authors: Ortiz-Sánchez Pedro Alfonso Guadal , Basave-Torres Rosy Ilda , Sánchez-Iturbe Patricia Guadalupe , Ortiz-Y Ojeda Pedro T.
Published: May 2021

To implement corrective and supportive measures, this educational research is carried out to identify the presence of risky levels of depression, anxiety and / or stress and to evaluate its possible influence on the high rates of failure and drop out of the students of Systems Engineering Computational and Biochemical Engineering. One of the objectives of National Technological Institute of Mexico (TecNM) is to apply teaching strategies that allow a high degree of learning, less dropout and a higher degree of graduation from competent professionals. Applying a systematic stratified random sampling, 262 students were chosen who participated by answering previously assessed surveys (Cronbach's alpha between 0.78 and 0.914). Both programs usually show high rates of failure and low terminal efficiency. Preliminary results show high stress rates and average anxiety in the first grades, this is previously unknown for most of the students; Anxiety and depression presented slight differences between freshman students and the ones of last semesters, without considering that these factors could be determining in their academic performance, the students agree that these problems affect their academic performance, in terms of failure and turn out to be a factor to cause dropout. Objective: to correlate the results obtained in the applied surveys referred to know the degree of depression, anxiety and / or stress among the students of 2 different degrees with their level of academic performance. Methodology.- A stratified random sampling was applied to students of Biochemical Engineering and Computer Systems Engineering. 4 surveys were applied to determine anxiety, stress, depression and influence on their academic performance, the data were analyzed using predetermined scales and the Chi square test to find out the correlation between the mentioned variables. Contribution.- Levels of anxiety, stress and depression were detected in Engineering students and their correlation regarding the affectation in their academic performance, factors to be taken into consideration to avoid failure and desertion.
A GENERAL MODELLING APPROACH FOR COATED COTTON-SEEDS
BASED ON THE DISCRETE ELEMENT METHOD
Authors: Wang Long , Hu Can , He, Xiaowei , Guo Wensong , Wang Xufeng , Hou Shulin
Published: May 2021

In the current paper, a coated cotton-seed discrete element model was established. Furthermore, we designed a device for the simultaneous determination of the repose and accumulation angles, and Plackett–Burman and central composite design (CCD) tests were performed with the repose and accumulation angles as the test indexes. The static friction coefficient between seeds (SFCC) and the dynamic friction coefficient between seeds (DFCC) were observed to have a significant influence on the indexes and were thus selected for the subsequent analysis (P < 0.05). Analysis of variance revealed the terms of these two parameters to have a significant effect on the relative error of the repose angle (RERA) and the relative error of accumulation angles (REAA) (P < 0.05). A solution to the proposed mathematical model was determined via the NSGA-Ⅱ genetic algorithm and the Pareto optimal solution set was obtained. Based on multi-objective optimization, the SFCC and DFCC were determined as 0.174 and 0.068, for RERA and REAA values of 1.715% and 1.712%, respectively. Simulations were then performed using the optimal parameters. Results of the T-test demonstrated that there were no significant differences between the simulated and physical test results.
SIMULATED ANNEALING GENETIC ALGORITHM-BASED HARVESTER OPERATION SCHEDULING MODEL
Authors: Zhang Qingkai , Cao Guangqiao , Zhang Junjie , Huang Yuxiang , Chen Cong , Zhang Meng
Published: May 2021

To address problems involving the poor matching ability of supply and demand information and outdated scheduling methods in agricultural machinery operation service, in this study, we proposed a harvester operation scheduling model and algorithm for an order-oriented multi-machine collaborative operation within a region. First, we analysed the order-oriented multi-machine collaborative operation within the region and the characteristics of agricultural machinery operation scheduling, examined the revenue of a mechanized harvesting operation and the components of each cost, and constructed a harvester operation scheduling model with the operation income as the optimization goal. Second, we proposed a simulated annealing genetic algorithm-based harvester operation scheduling algorithm and analysed the validity and stability of the algorithm through experimental simulations. The results showed that the proposed harvester operation scheduling model effectively integrated the operating cost, transfer cost, waiting time cost, and operation delay cost of the harvester, and the accuracy of the harvester operation scheduling model was improved; the harvester operation scheduling algorithm based on simulated annealing genetic algorithm (SAGA) was able to obtain a global near-optimal solution of high quality and stability with high computational efficiency.
DESIGN AND EXPERIMENTAL STUDY OF THE COMB-TYPE HARVESTING TEST BENCH FOR CERASUS HUMILIS
Authors: Liu Shaohua , He Junlin , Wu Nan
Published: May 2021

A comb-type harvesting test bench was designed to address low fruit collection rate and theoretical analysis and simulation analysis of the harvesting process were carried out in this work. Single factor simulation experiment and bench experiment were carried out, and fruit collection rate was used as the evaluation index. The motor speed, bending angle of comb teeth and radial diameter of comb teeth arrangement were selected as the experimental factors. Results showed that the collection rate decreased with the increase of motor speed; and increased with the increase of the bending angle of comb teeth or the radial diameter of comb teeth arrangement. The orthogonal experiment of three-factor and three-level quadratic rotation centre combination was performed. The results showed that motor speed had the largest effect on collection rate, followed by radial diameter of comb teeth arrangement and bending angle of comb teeth. The optimal parameter combination was predicted by the response surface model as follows: motor speed of 25 r/min, bending angle of comb teeth of 120°, radial diameter of comb teeth arrangement of 868.45 mm and correspondingly the collection rate reached 91.51%. Based on actual harvesting efficiency and the machining problems of the test bench, the bench experiment was performed with the motor speed of 25 r/min, the bending angle of comb teeth of 120°, the radial diameter of comb teeth arrangement of 900 mm, and the collection rate was 93.82%. The relative error with the predicted optimal result was 2.48%, achieving the purpose of improving the collection rate.
RITUALS AND BELIEFS OF SHARKAN UDMURTS IN THE LOCALITY OF PISLEGOVO
Authors: Shutova N.I.
Published: May 2021

The article is devoted to the description of the rituals and beliefs of the Sharkan Udmurts in the Pislegovo locality. It is based on the materials of the ethnographic expedition conducted in 1993 and 2001 in the Sharkan district of the Udmurt Republic at the watershed of the Cheptsa and Kama Rivers' basins. The work contains the information on the demographic indicators, settlement area, dialect terms used by this local Udmurt group. Here is given the characteristic of the cult places, family and calendar rites of the following settlements as the villages of Pislegovo, Bol’shoy Bilib, Malyj Bilib, Stary Baibek, Verkh-Sjurzja, Badjarvyr, Kykva, and others. The secret (undeclared) public center of the settlement was the village of Pisegovo. The Kargurez’ elevation as a kind of sacred value of the local Udmurts is situated near the village. The traditional public prayers of Badgym busy vös’ (‘great prayer in a field’) were held in the nearby village. There were sacrificed foals and sheep. It was revealed that the border between the settlement areas of two Udmurt ethnographic groups, such as the northern ( vatka palios “residents of the Vyatka side”) and southern ( kuzon palios “residents of the Kazan side”), went through the locality.
PRIORITIES OF PARTY-STATE BODIES OF THE USSR IN FINANCING AND PLACEMENT OF ENTERPRISES OF TIMBER PROCESSING COMPLEX IN THE FIRST FIVE-YEAR PLAN (1928-1932)
Authors: Zykin I.V.
Published: May 2021

In the Soviet Union, with the beginning of the first five-year plan (1928-1932), it was planned to carry out on a large scale the reconstruction and construction of forest industry enterprises, bringing them closer to the sources of raw materials. Large production facilities in the fields of mechanical processing and deep processing of wood were to appear in different regions of the country, but primarily in the European North and the Ural. Active industrial development of the northern and eastern regions of the country led to increased interest of researchers, including on issues of capital investments and new construction in the forest industry. However, many aspects have been unaffected or considered superficially. This updates the appeal to the problems of financing and placement of enterprises in the forest industry. The basic theory is the concept of modernization. The novelty of the study is that for the first time an analysis of the indicators of the first five-year plan and statistical data on the forest industry has been undertaken, and the peculiarities of the placement of enterprises of the industry have been summarized. Conclusions were drawn about the plans of the party-state bodies of the Soviet Union to develop the spheres of mechanical processing and deep processing of wood, including the combination of enterprises, the approach of new industries to forest areas and waterways in the northern, north-eastern and eastern regions of the country. However, due to economic, technological, natural and resource reasons, during the first five-year plan, the emphasis on financing of the forest industry shifted to the development of forests and the construction of mechanical wood processing plants. Many indicators of the plan have not been implemented, a number of large projects, especially in the pulp and paper industry, have not been implemented.
YOUNG WORKERS OF THE DEFENSE INDUSTRY OF THE UDMURT AUTONOMOUS SOVIET SOCIALIST REPUBLIC DURING THE GREAT PATRIOTIC WAR: PROBLEMS OF ADAPTATION IN PRODUCTION
Authors: Repnikov D.V.
Published: May 2021

During the Great Patriotic War of the Soviet Union, one of the most important phenomena in the life of the country as a whole and the Udmurt Autonomous Soviet Socialist Republic in particular was the mass attraction of young people to the enterprises of the defense industry and their transformation into a significant part of the factory labor collectives. The existing personnel situation inevitably gave rise to a complex of problems in the work with young workers, which had to be resolved by the management of enterprises, their party, trade union and Komsomol organizations. The problem of adaptation of young workers to work in industrial production was the basic one. Its most important components were the closely interrelated problem of labor discipline (the extreme manifestations of which were absenteeism and desertion), the problem of vocational training and advanced training, and the problem of ensuring the necessary working and living conditions for young workers. The article was prepared on the basis of an analysis of the regional historiography of Udmurtia and documents of the Center for Documentation of the Contemporary History of the Udmurt Republic and is devoted to the characteristics of these problems and the reasons for their occurrence.
RELIGIOSITY OF TRANS-BAIKAL BURYATS IN THE CONDITIONS OF ANTIRELIGIOUS POLICY OF THE SOVIET STATE IN THE 1950s - EARLY 1960s
Authors: Drobotushenko E.V.
Published: May 2021

In the article, on the basis of archival documents, the features of official, institutionalized religiosity of Transbaikal Buryats in the second half of the 1950s - early 1960s are characterized. The author says that at present the problem stated in the title of the article is practically not studied. Transbaikalia at the time in question is the territory of two subjects of the RSFSR, the Buryat-Mongolian (Buryat) Autonomous Soviet Socialist Republic and the Chita region. Data on the religiosity of the population of Transbaikalia, in the period under review, can be obtained mainly from the reports of the authorized Councils for religious cults and the affairs of the Russian Orthodox Church, and since 1965, the Council for religious affairs under the Council of Ministers of the USSR. The degree of religiosity of society can be assessed by two components: institutionalized one - officially registered religious institutions, such as religious associations, priests and existing buildings of religious purpose, and non-institutionalized one, i.e. unofficial religious structures. Markers of the measurement of the religious component are: the number of registered religious associations, buildings of religious purpose, priests, their territorial location, the number of registered believers-parishioners, the amounts received from different sources for the needs of religious associations, sacred places, pilgrimages, etc. For the Buryat population of Transbaikalia, religiosity was manifested, for the most part, in the Northern branch of Buddhism - Lamaism. It is noted that, despite the serious antireligious orientation of the Soviet government, the Buryat population largely remained religious. There were registered religious associations, religious buildings, there was a significant number of parishioners.
CHARACTERISATION OF MORINGA OLEIFERA (DRUMSTICK) WOOD FOR PULP AND PAPER MAKING
Authors: SHARMA ARVIND , DHIMAN GUNJAN , LAL PRITI S. , GODIYAL RAVI D. , THAPLIYAL BIPIN P.
Published: May 2021

"Moringa oleifera (drumstick) wood was evaluated in terms of its chemical composition, morphological features, Kraft pulping behavior, ECF bleaching and mechanical strength properties – important parameters for pulp and paper making – in comparison with Acacia mangium. Moringa oleifera was found to have the following composition: holocellulose 65.5%, lignin 20.5%, pentosan 11.6%, -cellulose 40.5% and extractives content of 5.15%, which made it comparable with the Acacia mangium wood sample. The alkali prehydrolysis of Moringa oleifera was carried out using 2% NaOH at 150 °C. The prehydrolysis liquor (PHL) was found to contain 50.9 mg/kg of calcium, 5140 mg/kg of potassium and 312 mg/kg of iron content. The prehydrolysis step was followed by Kraft pulping in order to obtain chemical grade pulp of kappa number 15-16 under optimized conditions. The Moringa oleifera pulp was bleached using the DEpD bleaching sequence to reach 85% brightness (ISO). The bleached pulp had an average fiber length of 1.21 mm, which was higher than that of Acacia mangium – 0.782 mm. The mechanical strength properties of the unbleached and bleached pulps, such as tear, tensile and burst indices, were also determined to show their suitability for pulp and paper production."
ULTRASOUND ASSISTED BIO-DYEING OF SOME TEXTILE MATERIALS WITH BLACK CARROT (DAUCUS CAROTA L.) EXTRACT
Authors: BENLI HÜSEYIN
Published: May 2021

"This study has been conducted to find out whether black carrot extract can be used as a dyestuff to dye textile materials.
For this purpose, the two most widely used textiles (namely, cotton and wool) have been selected. The extractions from
the black carrot were performed directly in the dyebath. An ultrasonic bath at 80 °C for 60 minutes was used to increase
extraction efficiency. All the dyeing processes were carried out at 100 °C for 60 minutes, both with and without some
metal salts, using two different dye concentrations in 1:1 and 1:10 ratios (material weight:dye extraction volume). Six
different metal salts, i.e. K2Cr2O7, CuSO45H2O, FeSO47H2O, SnCl22H2O, ZnSO47H2O, KAl(SO4)2.12H2O, were used
in the dyeing processes, according to pre- and simultaneous mordanting methods. After the dyeing processes, the dyed
samples’ CIE L*a*b* and color efficiency K/S values were determined by spectrophotometry. The SEM and FTIR data
of the fabrics were collected and evaluated at the end of the trials as well. At the same time, perspiration, rubbing,
washing and light fastness values of the dyed materials were also assessed. Acceptable fastness test results were
obtained for the dyed samples. The findings of the study indicated that the dyeability performance of wool and cotton
fabrics with black carrot (Daucus carota L.) extract could be greatly influenced by the mordant used and its application
method."
A low power L-shaped gate bipolar impact ionization MOSFET based capacitorless one transistor dynamic random access memory cell
Authors: Kumar Kamal Alok , Kamal Neha , Singh Jawar
Published: May 2021

In this paper, a capacitorless, low power and CMOS compatible L-shaped gate bipolar impact ionization metal-oxide semiconductor (L-BIMOS) one transistor dynamic random access memory (1T DRAM) cell is proposed. The proposed 1T DRAM offers high retention time (RT = ∼1.4 s), sense margin (SM = ∼45 μA μm−1) and read current ratio (∼5 orders of magnitude). The RT and SM are 1.86×, and 300× , respectively higher than the previously reported silicon germanium (SiGe) based BIMOS 1T DRAM. Therefore, the proposed 1T DRAM cell stands out to be power efficient, and provides better integration density that makes it suitable for various emerging computing applications.
Analysis of dissolution kinetics of narrow polydispersity poly(4-hydroxystyrene) in alkaline aqueous solution using machine learning
Authors: Tanaka Naoki , Watanabe Kyoko , Matsuoka Kyoko , Azumagawa Kazuki , Kozawa Takahiro , Ikeda Takuya , Komuro Yoshitaka , Kawana Daisuke
Published: May 2021

Understanding the dissolution kinetics of resist materials is essential for their efficient development. In this study, we investigated the dissolution kinetics of poly(4-hydroxystyrene) (PHS) with a weight-average molecular weight (M
w) of 8000–30 000 and a polydispersity index (M
w
/M
n) of 1.07–1.20. The dissolution kinetics of PHS films was observed in tetramethylammonium hydroxide (TMAH) aqueous developers by a quartz crystal microbalance (QCM) method. The TMAH concentration was changed from 0 to 2.38 wt%. The formation of a thick transient swelling layer at these M
w
/M
n values was suppressed compared with that at M
w
/M
n > 2. QCM data were analyzed using the polynomial regression to clarify the effects of M
w and M
w
/M
n on the dissolution kinetics in a narrow polydispersity region. Both dissolving and swelling kinetics largely depended on M
w/M
n. M
w had little effect in 2.38 wt% TMAH developer; however, it had a large effect on the swelling when 2.38 wt% TMAH developer was diluted.
Viciniorità o viciniorietà o vicinorità? Cerchiamo più da vicino
Authors: Coletti Vittorio
Published: May 2021

Ci sono arrivati numerosi quesiti sul termine viciniorità, documentato in vari decreti ministeriali (in particolare dell’Istruzione). Alcuni vertono sul significato, che non risulta chiaro, altri sulla sua legittimità (vista l’assenza di registrazioni lessicografiche), altri ancora su quale sia la forma corretta tra quelle che circolano, che si diversificano nel segmento finale: ‑orità, ‑iorità o ‑iorietà.
Geometry of Multiprimary Display Colors II: Metameric Control Sets and Gamut Tiling Color Control Functions
Authors: Rodriguez-Pardo Carlos , Sharma Gaurav
Published: May 2021

For multiprimary displays that have four or more primaries, a color may be reproduced using multiple alternative control vectors. We provide a complete characterization of the Metameric Control Set (MCS), i.e., the set of control vectors that reproduce a given color on the display. Specifically, we show that MCS is a convex polytope whose vertices are control vectors obtained from (parallelepiped) tilings of the gamut, i.e., the range of colors that the display can produce. The mathematical framework that we develop: (a) characterizes gamut tilings in terms of fundamental building blocks called facet spans, (b) establishes that the vertices of the MCS are fully characterized by the tilings of the gamut, and (c) introduces a methodology for the efficient enumeration of gamut tilings. The framework reveals the fundamental inter-relations between the geometry of the MCS and the geometry of the gamut developed in a companion Part I paper, and provides insight into alternative strategies for color control. Our characterization of tilings and the strategy for their enumeration also advance knowledge in geometry, providing new approaches and computational results for the enumeration of tilings for a broad class of zonotopes in R3.
МАТЕРІАЛИ ХXII МІЖНАРОДНОЇ НАУКОВО-ПРАКТИЧНОЇ КОНФЕРЕНЦІЇ «ВІДНОВЛЮВАНА ЕНЕРГЕТИКА ТА ЕНЕРГОЕФЕКТИВНІСТЬ У XXI СТОЛІТТІ»
Authors:   Інститут відновлюваної енергетики НАН України, Кудря С.О. , Рєзцов В.Ф. ,   Інститут відновлюваної енергетики НАН України, Суржик Т.В. ,   Інститут відновлюваної енергетики НАН України
Published: May 2021

У збірнику викладено матеріали доповідей учасників конференції, присвяченої розвитку відновлюваної енергетики з метою подальшого використання відновлюваних джерел енергії для отримання додаткових обсягів теплової та електричної енергії з метою реалізації заходів з енергозбереження та енергоефективності в суспільстві. Матеріали рекомендовано для науковців, викладачів, фахівців підприємств, аспірантів та студентів які займаються вирішенням проблем енергозбереження та енергоефективності в суспільстві.
COMMUNITY WITH ATRAPHAXIS DAGHESTANICA (LOVELIUS) LOVELIUS IN UNTSUKUL DISTRICT OF DAGESTAN
Authors: Asadulaev Z. M. , Magomedova В. М. , Mallaliev М. М.
Published: May 2021

The phytocenotic and biomorphological features of Atraphaxis daghestanica, an endemic species of the Eastem Caucasus, hsted in the Red Data Book of the Repubhc of Dagestan (2009) in the Untsukul region of Dagestan (42 ° 36'21 "N, 46 ° 58'09" Е, 590 m above sea level) have been studied. The cenopopulation is represented mainly Ьу middle-aged generative plants, covers an area of 1 О hectares and has а population of about 10,000 specimens. The results of one-way analysis of variance showed that а significant intergroup difference was expressed for all the registered signs of an annual shoot.
Escritas literárias africanas
Authors: Da Silva Cristina Maria , Taborda Terezinha
Published: May 2021

A presente proposta visa reunir trabalhos em torno da temática Memórias de Guerra em Experiências Literárias Africanas e de como a escrita tem elaborado traumas coletivos. Evocando noções como narrativa, trajetórias e memória, pensamos que é possível observar como os processos de recordação e elaboração têm se construído através da escrita literária. O que essas narrativas mobilizam de suas paisagens coletivas? como narram os enfrentamentos e as consequências da guerra civil? como se esboçam nessas narrativas as trajetórias desses escritores, de seus países e de seus repertórios culturais? Enfim, como são mobilizados em suas escritas as recordações. Que espaços da recordação são mobilizados na montagem de suas escrituras?  A memória do trauma é uma forma de recuperar na fragilidade dos rastros individuais a compreensão para a história e para as condições socioantropológicas de cada sociedade. Propomos reunir, neste Dossiê, reflexões que ponham em diálogo preocupações do campo das ciências humanas, sociais e literárias que nos permitam refletir sobre essas experiências nas literaturas africanas.
A tortura representada no conto O fato completo de Lucas Matesso
Authors: Chaves Maria Genailze , Pereira Smith Júnior Dr. Francisco Pereira Smith Júnior , Carvalho Rocha Drª. Ana Lilia
Published: May 2021

A partir do método da literatura comparada este artigo analisa o O fato completo de Lucas Matesso (1997) de Luandino Vieira e as torturas que nele estão descritas. Nesse viés, o objetivo do trabalho está em refletir as experiências de traumas depositadas ao corpo após o processo de tortura, concomitante a isso refletir as violências acometidas contra o personagem Lucas Matesso diante dessa obra de teor testemunhal. Portanto, a manifestação literária representada pelos contos, no contexto contemporâneo da literatura brasileira e angolana, permite perceber a violência ditatorial e a resistência por parte dos encarcerados, na qual mostra a atrocidade e a brutalidade sofrida por eles, apresentando um cenário real vivenciado por países que até os dias atuais resistem as repressões ditatoriais.
EFEKTIFITAS EKSTRAK DAUN KELOR TERHADAP PENINGKATAN KADAR HEMOGLOBIN PADA REMAJA PUTRI
Authors: Fauziandari Erma Nur
Published: May 2021

Latar Belakang : Anemia adalah masalah gizi yang sering terjadi di negara berkembang denganprevalensi terbesar adalah pada anak-anak dan wanita usia subur (15-49 tahun). Kejadian anemiapada wanita usia subur (WUS) adalah 30 persen. Target WHO pada tahun 2025 terjadipenurunan anemia pada WUS yaitu 25 persen. Angka kejadian anemia pada WUS di Indonesiaadalah 35,3 persen. Kejadian anemia pada WUS akan berpengaruh terhadap kesehatanreproduksi yaitu melahirkan bayi dengan Berat Badan Lahir Rendah (BBLR) dan komplikasi lainselama kehamilan, persalinan dan nifas. Hasil penelitian Sukidjo (2016) bahwa anemia gizi besipaling banyak di tanggulangi dengan konsumsi zat besi. Menurut beberapa penelitian daun kelor(moringa oliefera) adalah sebagai salah satu sumber zat besi. Daun kelor (moringa oliefera)dikenal mempunyai berbagai macam kandungan gizi. salah satunya adalah zat besi, protein,vitamin A, Vitamin C, kalium dan kalsium. Daun kelor menjadi alternatif untuk mengatasikondisi anemia karena memiliki kandungan zat besi sebesar 28,2 mg. Daun kelor juga menjadialternatif untuk pengobatan karena dipercaya mengandung berbagai zat antioksidan.Tujuan : dari penelitian ini adalah mengetahui efektifitas peningkatan kadar hemoglobin denganmegonsumsi ekstrak daun kelor.Metode : Penelitian ini dilakukan dengan rancangan pre post test design. Dengan observasi yangdilakukan pada sampel sebelum dan sesudah mengkonsumsi ekstrak daun kelor. Sampel padapenelitian ini adalah 15 sampel remaja putri.Hasil : Dengan hasil terdapat perbedaan yang signifikan antara kadar hb sebelum dan sesudahpemberian ekstrak daun kelor. Dengan hasil p value 0,009 < 0,005. Berdasarkan p value tersebutmaka dapat disimpulkan bahwa ektrak daun kelor efektif untuk meningkatkan kadar hemoglobinpada remaja putri.
Investigation of the Exergy Analysis and Efficiency in the Turning of DIN 1.2367 Material
Authors: Çakır Ali Kemal
Published: May 2021

Increases of product in manufacturing processes have made its impact felt in Turning, one of the important branches of the industry. Increases in manufacturing also increase energy consumption. We can achieve this with efficiency studies in energy consumption. Energy efficiency studies to be carried out will reduce carbon emissions that will be revealed in turning processes and harm the environment. There are many studies on optimization of cutting parameters in turning processes. However, there are few studies on the effect of optimization of cutting parameters on energy efficiency and carbon emission values. This study has been trying to resolve this tartness. In the study, the efficiency calculation was made by extracting the exergy values of the processes of turning DIN 1.2367 steel material. In addition, processes in turning other metals can be determined and exergy calculations and efficiency values of these processes can be derived.
Talent transfer: A systematic review
Authors: Van Harten Karlijn , Bool Kayan , Van Vlijmen Janiek , Elferink-Gemser Marije
Published: May 2021

Background: The effectiveness of traditional talent development (TD) programs can be questioned. Meanwhile, an extra pathway to the top has made its appearance: Talent transfer (TT). The aim of TT is to fast-track talented athletes into the high-performance environment. The first TT initiatives and studies exploring the TT process have been carried out.

Objective: This systematic review gives an overview of studies examining TT, by situating TT within the developmental framework, comparing formal and informal TT and investigating the similarities between donor and transfer sports in TT from elite and non-elite level.

Methods: A search was conducted on the PubMed and PsychINFO databases. The analysis was done according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta Analyses) statement.

Results: After screening on title and abstract and full-text review, five studies remained for inclusion. Although literature is still scarce, results show that TT can serve as an alternative pathway in addition to the traditional TD programs. Literature suggests that similarities between donor and transfer sports are helpful, but this is not a prerequisite for TT. Besides, psychological factors are perceived to play an important role. Results regarding other determining factors of TT are still lacking. Athletes, national governing bodies and TD programs might benefit from this additional pathway, but the effectiveness of formal and informal TT remains unclear.

Conclusion: A lot remains unknown about TT, hence future research is needed to increase our understanding of TT and its contribution as an extra pathway to the top.
Biological evaluation of selective laser melted magnesium alloy powder
Authors: Pawlak Andrzej Paweł , Szymczyk-Ziółkowska Patrycja , Junka Adam , Chlebus Edward
Published: May 2021

Purpose: The current study examined magnesium alloy AZ31B specimens manufactured with Additive Manufacturing method (selective laser melting – SLM) to investigate the applicability of this technology for the production of medical devices. Methods: Osteoblast cells and bacterial biofilm growth ability on specimen was examined and the effect of surface state on corrosion resistance was evaluated by electrochemical and immersion methods. Results: High survival of hFOB cells, as well as a strong tendency for Pseudomonas aeruginosa and Staphylococcus aureus biofilm proliferation on the surface of the tested specimens were shown. SLM-processed AZ31B alloy has a higher corrosion resistance in 0.9% NaCl solution and in a multi-electrolyte saline solution than the material in a conventional form of a rolled sheet. Conclusions: It has been demonstrated that the strong development of the surface of as-built processed specimens results in a significantly increased corrosion rate, which hinders the production of complex structures in tissue engineering products that support cell ingrowth.
Altered postural stability in elderly women following a single session of head-mounted display virtual reality
Authors: Cieślik Błażej , Serweta Anna , Federico Sara , Szczepańska-Gieracha Joanna
Published: May 2021

Purpouse: The aim of this study was to evaluate the effect of a single session of head-mounted display virtual reality on postural stability in elderly women. Methods: Forty-seven female subjects underwent a 20-minute virtual reality session. The mean age of the subjects was 70.12 years. As an immersive source, we used a relaxing virtual reality game with a head-mounted display device. The postural stability test was conducted using a Nintendo Wii force plate. Participants completed a set of three 30-s trials in which they took a quiet bipedal eyes-open stance while standing on a hard surface: before the virtual reality session, immediately after the virtual reality session, and 2 minutes after the virtual reality session. Centre of pressure parameters were analysed in the sagittal and frontal planes. Results: Analysing the results obtained immediately after the virtual reality session, significant differences were observed in almost all examined parameters. In the sagittal plane, centre of pressure path velocity increased by 10% (p < 0.01) and path standard deviation by 15% (p < 0.05). In the frontal plane, centre of pressure path velocity increased by 14% (p < 0.01). After 2 minutes, all examined parameters showed no significant difference compared to before the virtual reality session. Conclusions: Immediately after the virtual reality session, there was an increase in almost all examined parameters. However, after 2 minutes, all examined parameters had returned to baseline. Therefore, to reduce fall risk after a virtual reality session, it is recommended that the subject spend at least 2 minutes in a sitting position.
Study on friction behavior at the interface between prosthetic socket and liner
Authors: Jingyang Xie  , Xidong Liu  , Jianhua Tang  , Xi Li  , Wei Li
Published: May 2021

Purpose: The friction characteristics at the interface between prosthetic socket and liner have an important influence on the walking function and wearing comfort of amputees. The frictional behavior at the prosthetic socket/liner interface can provide theoretical guidance for the design and selection of prosthetic materials. So it is of great significance to study the friction behavior at prosthetic socket/liner interface. Methods: The surface roughnesses of the prosthetic socket and liner materials were measured by a laser confocal microscope. The frictional behavior at the prosthetic socket/liner interface was studied on a UMT TriboLab Tribometer by simulating the reciprocating sliding contact mode. An infrared camera was used to take thermal images and then calculated the temperature increase at the socket/liner interface. Results: The coefficient of friction of the silicon rubber fabric are significantly smaller than that of the foam liner materials. The frictional energy dissipation at the liner/acrylic socket interface is the smallest, while it is greater for 3D-printed socket materials. Meanwhile, the temperature increase has a positive correlation to the coefficient of friction and frictional energy dissipation. Conclusions: The three kinds of 3D-printed materials with high surface roughness have higher interface coefficient of friction and energy dissipation than acrylic material. The stiffness and energy consumption play an important role in the interface friction characteristics of the prosthetic liner materials. The appropriate coefficient of friction at the surface between prosthetic socket and liner is essential. A type of the reinforcement fiber has influence on the friction behavior of the 3D-printed reinforced nylon.
A sitting or standing position – which one exerts more loads on the musculoskeletal system of the lumbar spine? Comparative tests based on the methods of mathematical modelling
Authors: Zadoń Hanna , Nowakowska-Lipiec Katarzyna , Michnik Robert
Published: May 2021

Purpose: The work aimed to assess the functioning of the musculoskeletal system within the lumbar spine in relation to everyday postures of sitting and standing. Methods: The comparative analysis was based both on experimental tests and computer simulations performed in the AnyBody Modeling System environment. Input data used to prepare models were based on the information obtained in experimental tests. The test participants were tasked with adopting two postures: 1) standing position and 2) sitting position. Kinematics measurements were performed using the Zebris ultrasonic system. During sitting position, the tests additionally involved the use of a dynamometric platform measuring reaction forces occurring between buttocks and the seat. Results: The comparative analysis included measurements of the trunk inclination angle and the pelvic inclination angle as well as results of computer simulations. The sitting posture is responsible for increased trunk inclination and a change in the position of the pelvis. In terms of the sitting position, it was possible to observe an increase in the loads affecting individual intervertebral joints of the lumbar spine by 155–184% in comparison with the standing posture (100%). Simulations revealed an increased muscle activity of the erector spinae, abdominal internal oblique muscles and abdominal external oblique muscles. Conclusions: Adopting a sitting position increases the loads on the lumbar spine and increases the activity of the erector spinae and abdominal muscles compared to the standing position, which is caused by change in the position of the pelvis and the curvature of the lumbar region.
Existence and uniqueness for a quasilinear elliptic problem with nonlinear Robin conditions
Authors:   UNIVERSITY OF THE PHILIPPINES DILIMAN INSTITUTE OF MATHEMATICS 1101 DILIMAN, QUEZON CITY PHILIPPINES E-mail address: bituin@math.upd.edu.ph, CABARRUBIAS BITUIN , DONATO PATRIZIA ,   UNIVERSITY OF ROUEN LABORATOIRE DE MATHEMATIQUES RAPHAEL SALEM AVENUE DE L’UNIVERSITE, BP 12 76801 SAINT ETIENNE DE ROUVRAY, FRANCE E-mail address: Patrizia.Donato@univ-rouen.fr
Published: May 2021

This paper deals with an existence and uniqueness result of a weak solution for a quasilinear elliptic boundary value problem in a domain whose boundary is the union of two disjoint closed surfaces. On the interior boundary we prescribe a nonlinear Robin condition with suitable growth assumptions, and on the exterior boundary, a Dirichlet condition. The main difficulty when proving the existence of a solution is due to the nonlinear boundary condition, since, in order to apply a fixed point theorem, we need to prove the weak continuity of the associated boundary operator. To this aim, we first study several properties of this operator.
lncCRLA Enhanced Chemoresistance in Lung Adenocarcinoma That Underwent EpithelialMesenchymal Transition
Authors: Min Weili , Sun Liangzhang , Li Burong , Gao Xiao , Zhang Shuqun , Zhao Yang
Published: May 2021

EMT confers increased metastatic potential and the resistance to chemotherapies to cancer cells. However, the precise mechanisms of EMT-related chemotherapy resistance remain unclear. c-Src-mediated caspase 8 phosphorylation essential for EMT in lung adenocarcinoma cell lines preferentially
occurs in cells with the mesenchymal phenotype, resulting in chemoresistance to cisplatin plus paclitaxel in patients with resectable lung adenocarcinoma and a significantly worse 5-year PFS. Cisplatin killed lung adenocarcinoma cells regardless of caspase 8. Paclitaxel-triggered necroptosis
in lung adenocarcinoma cells was dependent on the phosphorylation or deficiency of caspase 8, during which FADD interacted with RIPK1 to activate the RIPK1/RIPK3/MLKL signaling axis. Accompanied with c-Src-mediated caspase 8 phosphorylation to trigger EMT, a novel lncRNA named lncCRLA was
markedly upregulated and inhibited RIPK1-induced necroptosis by impairing RIPK1RIPK3 interaction via binding to the intermediate domain of RIPK1. Dasatinib mitigated c-Src-mediated phosphorylation of caspase 8-induced EMT and enhanced necroptosis in mesenchymal-like lung adenocarcinoma cells
treated with paclitaxel, while c-FLIP knockdown predominantly sensitized the mesenchymal-like lung adenocarcinoma cells to paclitaxel+dasatinib. c-Srccaspase 8 interaction initiates EMT and chemoresistance via caspase 8 phosphorylation and lncCRLA expression, to which the dasatinib/paclitaxel
liposome+siFLIP regimen was lethal.