bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of rivet length on joint formation on self-piercing riveting process considering further process parameters
Authors: Kappe Fabian , Bielak Christian Roman , Sartisson Vadim , Bobbert Mathias , Meschut Gerson
Published: April 2021

Driven by the CO2-emission law by the European government and the increasing costs for raw materials as well as energy, the automotive industry is increasingly using multi-material constructions. This leads to a continuous increase in the use of mechanical joining techniques and especially the self-piercing riveting is of particular importance. The reason for this is the wide range of joining possibilities as well as the high load-bearing capacities of the joints. To be able to react to changing boundary conditions, like material thickness or strength variation of the sheets, research work is crucial with regard to the increase of versatility. In this paper, a numerical study of the influences on the selfpiercing riveting process is presented. For this purpose, the influence of different process parameters such as rivet length and die depth on various quality-relevant characteristics were investigated. With the help of the design of experiment, significant influences were determined and interactions between the individual parameters are shown.
Further development of a numerical method for analyzing the load capacity of clinched joints in versatile process chains
Authors: Bielak Christian Roman , Böhnke Max , Bobbert Mathias , Meschut Gerson
Published: April 2021

In many branches of production, components using large number of joints are combined together to make complex structures. The use of mechanical joining techniques offers the possibility to join structures with a wide range of material/geometry configurations. Due to changing in material properties during the production of formed parts, the robustness of the joint must be guaranteed. In this regard, a numerical method has been developed to predict the geometrical properties of the joint as a function of pre-straining of the metal sheets. In this way, the material combination and the joining tools are to be considered. The resulting metamodels were used to estimate the robustness of the joining process. In this study, the method is extended by a numerical load capacity model, which is generated from the joining process model using an automatic algorithm. The simulation model used for predicting the load capacity is validated by experiments. It is shown that the resulting automatic method is able to completely map a process chain and to predict the load capacity of the mechanical joints under consideration of the pre-strain. Furthermore, the correlation between the pre-strain and the load capacity is presented.
Analysis of Spring-in Deformation in L-shaped Profiles Pultruded at Different Pulling Speeds: Mathematical Simulation and Experimental Results
Authors: Vedernikov Alexander , Safonov Alexander , Tucci Fausto , Carlone Pierpaolo , Akhatov Iskander
Published: April 2021

Peculiarities of the pultrusion manufacturing process lead to the occurrence of spring-in deformations, whereas their value depends on the pulling speed. In this article experimental and numerical analysis was carried out for glass fiber/vinyl ester resin 75 × 75 × 6 mm L-shaped profiles pultruded at pulling speeds of 200 and 600 mm/min. Spring-in angles of produced profiles were determined on the same day of manufacturing when profiles cooled down to room temperature. Higher pulling speeds provoked increased values of spring-in. 2D numerical model accounting for thermo-chemical and mechanical composite’s behavior during pultrusion was implemented in ABAQUS software. Cure Hardening Instantaneous Linear Elastic (CHILE) constitutive law was used to describe matrix resin Young’s modulus evolution. Since both unidirectional (UD) rovings and fabric material were utilized, effective mechanical properties of UD and fabric layers were calculated in accordance with Self-Consistent Field Micromechanics (SCFM) approach. Spring-in angles determined within experimental and numerical studies were compared and a good correlation was found: the errors were 12.6% and 6% for the pulling speed of 200 and 600 mm/min, respectively.
Death by Honey and Bees
Authors: Cavanagh Sarah
Published: April 2021

Intense political and religious divisions plagued mid-seventeenth-century English society following the execution of King Charles I and the English civil war conflicts.  Against this backdrop, a fringe, troublesome Puritan preacher named Samuel Clarke published a history of Protestant martyrs, A Generall Marytrologie (1651), modeled after John Foxe’s popular Book of Martyrs (1563). Clarke’s less famous but more sensational version offered a zealous, often embellished, graphic account of religious persecution designed to incite anti-Catholic and anti-Irish sentiment. Significantly, his rousing text was supported by eighty crude and provocative engraved images depicting grotesque scenes of abuse and brutal sexual violence repeatedly positioning women and children as victims of “Papist” torture. To modern viewers, the inflammatory visuals are startling and disturbing, but they were enabled by several factors including a censored publishing industry in lockstep with Protestant ideology; a largely illiterate population swayed by traditions of narrative storytelling and visual messaging; and a fractious political environment in which leading figures actively positioned the Irish and Catholics as a menace to English society.
The General Introduction
Authors: Emma Facca Emma Kirwin
Published: April 2021

n/a
Pioneers of Allelopathy: XVI. Udo Blum
Authors: Blum Udo
Published: April 2021

Udo Blum had a teaching and research career of 34 years. His primary role was teaching, advising, and mentoring undergraduate and graduate students. He authored or co-authored research publications on plant-plant allelopathic interactions, air pollution biology, and salt marsh biology. He retired in 2002 and has subsequently written a three-volume retrospective analysis of his research on plant-plant allelopathic interactions involving phenolic acids. His primary research goals were to understand: (i) how cinnamic and benzoic acids released from plants into the soil affect sensitive seedlings and soil and rhizosphere microorganisms, (ii) how phenolic acids are distributed and partitioned in seedling-microbe-soil-sand systems and (iii) how their effects on sensitive seedlings are modified by abiotic soil factors (soil pH, soil moisture, soil nutrients, presence of other organic compounds) and soil processes (microbial utilization and soil sorption) in laboratory and field model systems. In 1999 he received the Molisch Award from the International Allelopathic Society for his research contributions to our understanding of Plant-plant allelopathic interactions.
Allelopathic root inhibition and its mechanisms
Authors: Šoln K. , Dolenc Koce J.
Published: April 2021

Allelopathy represents a valuable biochemical strategy in plant-plant interactions among different plants, e.g. among crops and weeds. It is an important strategy in the colonization of many invasive alien plants. Allelopathic plants affect the growth of other plants in the vicinity through the release of secondary metabolites (allelochemicals) into the soil. In particular, many allelochemicals suppress the root growth of target plants, but little is known about the mechanism involved in root growth inhibition. In this review, we will highlight the mechanism of root suppression involving: (i) Alterations in auxin homeostasis affecting polar auxin transport and root gravitropism, (ii) Biochemical and physiological processes in inhibited roots associated with oxidative stress due to direct production and accumulation of reactive oxygen species or suppression of antioxidative response and (iii) The ultrastructural modifications in root tip exposed to allelochemicals that drastically suppress the cell division and eventually lead to shorter roots of target plants.
Allelopathic effects of acetone extract from celery rotten roots and rhizosphere soil on cucumber pathogen Fusarium oxysporum f. sp. cucumerinum
Authors: Guo Jiahua , Wu Zhaoxin , Yun Xingfu , Li Lei
Published: April 2021

We studied the inhibitory effects of allelochemicals extracted from celery (Apium graveolens L.) rotten roots and rhizosphere soil on Fusarium oxysporum f. sp. cucumerinum (FOC). The allelochemicals were extracted and separated by column chromatography from the acetone extracts of celery rotten roots and rhizosphere soil. After extraction each fraction was mixed with potato dextrose agar (PDA) culture medium and then inoculated with FOC. The best fraction was screened by measuring the colony diameter and its effects on FOC was determined by evaluating the activities of antioxidant enzymes. The allelochemicals of best fractions were detected using GC-MS. The best fractions obtained after second run in column chromatography were labeled as RRA32, RRA38, RRA101, RRA102 and RRSA55, RRSA56, RRSA105, RRSA106 and they had allelopathic potential of 29.68 %, 31.97 %, 40.38 %, 41.55 % and 29.51 %, 29.47 %, 29.30 % and 32.85 % respectively. The antioxidants enzymes (peroxidase, catalase and superoxide dismutase) activities were significantly lower in treated FOC than control. Using the 8-best fractions, the GC-MS analysis yielded, total 47 compounds viz., 7 organic acids, 17 esters, 1 phenol, 1 alcohol, 1 aldehyde, 5 nitrogen-containing compounds and 2 carbides.
Effects of Exogenously applied palmitic acid on systemic resistance against Fusarium oxysporum f. sp. niveum in watermelon (Citrullus lanatus (Thunb.) Matsum. et Nakai)
Authors: Kou J.M. , Khashi u Rahman M. , Du W.T. , Yang L. , Li D.L. , Li W.H , Pan K.
Published: April 2021

e studied the effects of exogenously applied palmitic acid (PA) on reactive oxygen species (ROS) production, defense-related enzyme activity and malondialdehyde (MDA) content of roots and analyzed the response of defense-related genes in Fusarium oxysporum f.sp.niveum (FON) inoculated watermelon (Citrullus lanatus (Thunb.) Matsum. et Nakai). Our results showed that as compared to control, PA reduced the morbidity of Fusarium wilt by 33.3 % and disease severity by 53.2 %, increased the level of ROS of watermelon roots at early infection stage and the activity of defense related enzymes, and decreased the MDA content of watermelon roots. Moreover, PA up-regulated the expression of disease defense-related genes. These results suggested that PA promoted the accumulation of ROS and up-regulated the transcript level of defense-related genes and eventually induced the systemic resistance in watermelon against FON.
Allomones confer resistance to Musa cultivar Pisanglilin against infestation by Odoiporus longicollis [Oliver] and characterization of Allomones
Authors: Kavitha K.J , Sibina L L. , Evans D.A.
Published: April 2021

In bioassay guided extraction of pseudostem powder of Pisanglilin by organic solvents we found the larvicidal activity in acetone extract, whose column chromatography by methanol-chloroform mixture separated the extract into 9-fractions, of which the 8th fraction showed larvicidal activity. Subfractionation of the active fraction by column chromatography resulted in the isolation of two larvicidal molecules [Stigmasterol-3-O-glucoside (SOG) and Sulfoquinovosyl diacylglycerol (SQDG)]. Yield of SOG was 0.002 % and SQDG was 0.005 % and both were highly toxic to O. longicollis larvae with LD50 of 0.40 and 0.378 ppm, respectively. Larvae fed these compounds stopped feeding on third day and died within one week. SOG inhibited the amylase and protease activity of gut and induced histolysis in the mid gut. While SQDG inhibited the leucine amino peptidase and trypsin like serine protease activities, which decreased the content of total free amino acids. Imbalance in the activities of aspartate amino transferase and alanine amino transferase disrupted the aminoacid metabolism and the compound inhibited the activity of tyrosinase (an enzyme involved in cuticle development). SQDG toxicity caused accumulation of 20-hydroxyecdysone, the active moulting hormone in the hemolymph. Simultaneous action of two allomones present in Pisanglilin effectively resisted the attack of endophytic larvae in the pseudostem and thereby conferred resistance against infestation by O.longicollis. Preliminary study by intrapseudostem injection of Pisanglilin extract in susceptible M.paradisiaca cultivar Kappa, gave complete protection to it from attack by this pest, under field condition.
Effects of green manure of wild rocket (Diplotaxis tenuifolia L.) on cucumber rhizosphere fungal community
Authors: Zhang X.H. , Xie H.L , Wang Y.Y. , Zhou X.G.
Published: April 2021

In pot culture, we evaluated the effects of green manure of wild rocket (Diplotaxis tenuifolia (L.) DC.) on cucumber (Cucumis sativus L.) rhizosphere fungal community composition. Cucumber rhizosphere fungal composition was analyzed by high-throughput amplicon sequencing of fungal ITS regions. Results showed that cucumber seedling rhizosphere fungal community composition was different between the fallow treatment and green manure treatment. However, green manure treatment did not affect the cucumber seedlings fungal community alpha diversity. Compared with the fallow treatment, cucumber grown in green manure of wild rocket had higher relative abundance of phylum Ascomycota but lower relative abundance of phylum Zygomycota. Moreover, green manure of wild rocket decreased operational taxonomic units (OTUs) classified as Pseudallescheria and Kernia spp. but increased OTUs classified as Humicola and Fusarium spp. in cucumber rhizosphere.
Autotoxicity of continuoulys cropped passion fruit (Passiflora edulis Sims) soil
Authors: Zhang Q.X. , Chen X.T. , Wang Y.C. , Wang Y.H. , Zhu C.L. , Lin L.W. , H H.B. , Wang H.B.
Published: April 2021

We determined the soil autotoxicity in the rhizosphere soil of passion fruit continued cropping up to 3 years, and analyzed the changes in the enzyme activity, microbial quantity and diversity in rhizosphere soil. The results showed that the autotoxicity of passion fruit rhizosphere soil increases with the increase in continuous cropping years. The microbial biomass carbon, microbial respiration, and the activity of enzymes (protease, urease and catalase) in passion fruit rhizosphere soil decreased with increases in passion fruit continuous cropping years. Contrarily, the activity of polyphenol oxidase was opposite, showing an upward trend. The results of BIOLOG eco-plate showed that the differences in soil carbon sources between different continuous cropping years were mainly amino acids, carboxylic acids, phenolic acids and amine carbon sources. The ratio of bacteria, bacteria/fungus ratio, actinomycetes, protozoa and total marker PLFA in the rhizosphere soil decreased significantly with the increase of soil planting years, while the total PLFA of fungi increased. Thus, with the increase of continuous cropping years of passion fruit, the soil autotoxicity was intensified and the soil enzyme activity and soil microbial diversity decreased.
Ingredient modification to improve nutrition of Indonesian Koya made of nile and soy as a source of protein
Authors: Anandito R.B.K. , Kawiji  , Purnamayati L. , Maghfira L.L.
Published: April 2021

Koya is an Indonesian food often used as a seasoning topping. Koya is made from prawn
crackers and fried onions. It is popular and can be used as an alternative to improve
human nutrition, primarily to fulfill the protein needs in children. One of the high-protein
sources is the Nile tilapia which is easily cultured in Indonesia. Tilapia can be combined
with soy, a high protein local food. The aim of this study was to determine the
characteristics of Koya made from Tilapia and combined with either soy or fermented soy
(tempeh). Koya was made from a combination of the main ingredients, such as Nile tilapia
-soy flour (NS) and Nile tilapia-tempeh flour (NT) with a ratio of tilapia: soy flour/tempeh
flour 40:60, 50:50, and 60:40, respectively. Each Koya was tested for its chemical
composition and sensory evaluation. The results indicated that the combination of Nile
tilapia-soy flour and Nile tilapia-tempeh had a significant effect on the chemical and
sensory characteristics. With the higher concentration of tilapia; the moisture, ash, and
protein composition increased, but the fat content decreases. Koya with 60% of tilapia
either combined with 40% soy (NS3) or 40% tempeh (NT3), was the most preferred by
panelists. Koya NS3 contained moisture, ash, fat, protein, and carbohydrates of 13.06%,
5.15%, 19.59%, 54.19%, and 21.50%; respectively while NT3 of 13.32%, 3.89%, 19.28%,
48.72%, and 28.06%; respectively. Koya NS3 and NT3 contained linoleic and linolenic
fatty acids and higher essential and non-essential amino acids than commercial Koya.
Physicochemical, microbiological and sensory characteristics of cow’s milk Kashkaval cheese ripened at different temperatures
Authors: Ivanova M. , Markova A. , Ivanov G.
Published: April 2021

Kashkaval is a hard cheese produced in Eastern Europe and consumed after ripening. The
influence of ripening temperature (9±1°C, 11±1°C and 13±1°C) of cow's milk Kashkaval
cheese on its physicochemical, microbiological and sensory characteristics was studied.
For the ripening period no statistically significant differences (P>0.05) in the indicators
dry matter, fat content, salt and protein were found. A slight decrease in active acidity was
observed during the maturation process which tendency was more pronounced in the
experimental samples ripened at higher temperatures (13.0±1.0°C). It was found that
lowering the ripening temperature of Kashkaval cheese was accompanied by a
prolongation of the lag phase in the development of lactic acid microflora. A significantly
higher amount of lactic acid microorganisms (P<0.05) in cheese samples matured at 13±1°
C was established. The chosen temperature regime of maturation did not affect the number
of psychrotrophic microorganisms (P>0.05). The absence of unwanted side microflora in
fresh cheese was established, which was an important prerequisite for the normal course
of the maturing processes and the formation of a characteristic sensory profile of the
cheese. Kashkaval cheese ripened at 13±1°C for 45 days was characterized by the highest
overall sensory score comparable to Kashkaval cheese ripened at 9±1°C and 11±1°C for
60 days. The obtained results demonstrated that the higher ripening regime could be
successfully used to reduce production costs without changing the specific
physicochemical, microbiological and sensory characteristics of Kashkaval cheese from
cow milk.
FEATURES OF REGULATION OF THE INTERNET ENVIRONMENT IN THE CONDITIONS OF THE DIGITAL ECONOMY
Authors: Shipshova Ol'ga , Chumarina Gulnara
Published: April 2021

Building an information society is one of the most important challenges facing humanity. The information and communication infrastructure is the foundation in the information society, and the influence of technology is carried out in almost all spheres of life. The presented work examines the need for legislative regulation of the Internet environment in the context of the digitalization of the economy. The main distinctive features and characteristics of the information society are investigated, the legal conditions and legal norms for working with web sites in the Internet space are determined. The authors analyzed the tools and technologies most used in the Internet environment, identified the main causes and consequences of their use, identified the advantages and disadvantages.
FEATURES OF THE FOOD SUPPLY AND REGULATION OF THE FOOD MARKET IN THE BORDER REGIONS OF THE FAR EASTERN FEDERAL DISTRICT
Authors: Ermolaev Vladislav
Published: April 2021

The complex administrative and territorial structure of Russia, the significant differentiation of regions according to the level of economic development, the heterogeneity of natural and climatic conditions, the historically established system of specialization and division of labor, the different demographic situation, the different distances of regions from the center of Russia and its state borders, and national traditions objectively determine the emergence of regional food markets that reflect the specifics of the development of individual regions. Food security is the dominant part of the socio-economic policy and the primary task of the leaders of any state, a necessary factor for improving the quality and increasing the comfort of life of the population [2]. The problems of the formation and development of the Russian food market in general and regional food markets in particular in the border regions remain not fully understood. In the conducted research, insufficient attention was paid to the assessment of the conditions and factors that determine the process of achieving the goal of regulating the food market in a market economy, the specifics of the methods, mechanism and consequences of regulating the food markets of the regions, the assessment and methods of ensuring food security of both the country as a whole and the Far East in particular. The revision of the policy of state influence on economic processes required the development of a concept of state support for various subjects of economic relations and the formation of mechanisms for regulating markets, including food markets. The smooth functioning of food markets, combined with a focus on the products of domestic producers, is an essential condition for ensuring the country's food security.
Financial security of an enterprise and the system of indicators for its assessment
Authors: Agishev Artem , Kurashova Anna
Published: April 2021

In the article discusses issues related to the assessment of the financial security of enterprises. The authors present the concept of financial security of an enterprise, reveal the threats affecting it. The paper reveals the indicators used to assess the financial security of an enterprise, and also provides measures to improve financial security.
New Challenges and risks for Russia through the prism of geopolitical competition
Authors: Suglobov Aleksandr , Karpovich Oleg
Published: April 2021

Russia faces new challenges and threats in the context of modern global problems. The difficulties of geopolitical competition against the background of the global COVID-19 pandemic are analyzed. The article analyzes the difficulties in implementing the policy of multipolarity, which is designed to provide Russia with the role of an independent center of power in the international coordinate system.
İlkokul Dördüncü Sınıf Öğrencilerinin Matematik Problemi Çözmeye İlişkin Algılarının Metaforlar Yoluyla Analizi
Authors: AYVAZ CAN Asena
Published: April 2021

Bu araştırmanın amacı ilkokul dördüncü sınıf öğrencilerinin matematik problemi çözmeye ilişkin algılarını metaforlar aracılığıyla incelemektir. Araştırma fenomenoloji deseninde yürütülmüştür. Araştırmaya dördüncü sınıfta öğrenim gören 65 öğrenci katılmıştır. İlkokul öğrencilerine “Matematik problemi çözme ………… gibidir. Çünkü ……………” ifadesinin yazılı olduğu bir form dağıtılarak, öğrencilerin cümleleri tamamlamaları istenmiştir. Verilerin analizinde içerik analizi yönteminden yararlanılmıştır. İlkokul dördüncü sınıf öğrencilerinin matematik problemi çözme kavramına ilişkin geliştirdikleri metaforlar ortak özelliklerine göre altı kategoride sınıflandırılmıştır. Öğrencilerin çoğunun matematik problemi çözmeye ilişkin algılarının olumlu olduğu sonucuna ulaşılmıştır.
A Gestão do Conhecimento nas Organizações Públicas Brasileiras - Diagnóstico em uma Instituição Federal de Ensino
Authors: Peres Paula , Batista Vilson
Published: April 2021

O conceito de Gestão do Conhecimento (GC) está compreendido essencialmente no nível estratégico das organizações. O seu estudo é considerado um recurso relativamente novo às organizações públicas e privadas no Brasil. Neste trabalho de investigação, inicialmente foi realizado um estudo bibliográfico por meio de Revisão Integrativa da literatura e, num segundo momento, realizou-se um trabalho empírico de abordagem qualitativa por meio do estudo de caso como metodologia de investigação e utilizou-se a entrevista com questões semiestruturadas para a coleta dos dados. A partir da revisão de literatura restou evidente que a grande maioria das organizações públicas no Brasil ainda não possuem modelos ou práticas de GC instituídas. Os resultados do estudo empírico permitiram concluir que o Departamento investigado realiza alguns tipos de práticas simples de GC, mas são práticas aleatórias, alternadas e não intencionais. Acredita-se que as contribuições do estudo serão muito úteis a gestores de organizações públicas no país com foco nos princípios da eficiência da Administração Pública.
French Cultural Strategy and the Japanese Paradigm
Authors: Fregonese Pierre-William , Sakai Kazunari
Published: April 2021

France used to have one of the most powerful cultural diplomacy: it needs nowadays to modernize its strategy to hold on to its international position. France has a long history of foreign cultural policy and is one of the few countries that have placed great emphasis on fostering its culture abroad. However, the French position is currently being challenged by emerging international rivalries. Establishing a cultural strategy in the 21st century requires not only a consistent approach between the projection of an elite culture and of a pop culture, but also a joint action between public and private players. Japan could be a model, even a paradigm for France and its cultural action abroad, as well as an ally through a cultural alliance.
Características geológicas e petrográficas da Pedra da Gávea e Pedra Bonita, Rio de Janeiro
Authors: Garrido Thais Cristina Vargas
Published: April 2021

Os saberes geológicos produzidos no meio acadêmico configuram um auxílio adicional à compreensão científica do ambiente natural. Este artigo objetiva apresentar as características litológicas e petrográficas dos afloramentos da Pedra da Gávea e Pedra Bonita no Rio de Janeiro. O método de trabalho consistiu da caracterização dos litotipos, descrição petrográfica, fotomicrografia e classificação das rochas. O granito é o corpo intrusivo de textura porfirítica na porção superior de ambas as pedras, tendo no topo a forma aplainada sub-horizontal (soleira) e a granulação muito grossa com megacristais de feldspato, enquanto o embasamento é constituído de biotita paragnaisse migmatítico, o ortognaisse bandado e o ortognaisse facoidal.

Palavras chave: Granito, gnaisse, litologia, petrografia.
Analisa Hukum Perlindungan Hak Cipta Terhadap Pembelian Buku Elektronik Secara Ilegal
Authors: Tiawati Sulis , Pura Margo Hadi
Published: April 2021

The advancement of science and technology increases over time. National development activities also make aspects of life in the community significantly improved. Similarly, in the fields of science, art, and literature that are closely related to Intellectual Property Rights.  The increase in innovation technology and the development of the science sector should be supported by public awareness and market participants in understanding the importance of protecting intellectual property rights for an original product produced by a person. However, piracy of books that is still today indicates a lack of enforcement of copyright in Indonesia that harms the creator. This type of research is empirical juridical. The method of data collection used in the dissemination of questionnaires and literature studies is to study secondary legal materials related to the policy of Law No. 28 of 2014 On Copyright.The thing that affects the rise of piracy as well as from the people who become consumers, economic factors are the most chosen reason. Therefore the legal protection for copyright holders is governed by sections 99 and 113 of Law No. 28 of 2014 On Copyright, so that this piracy phenomenon can be overcome.

Keywords: Law; Protection; Copyright; Electronic; Books.
Compensatory Usage of the Internet: The Case of Mukbang Watching on YouTube
Authors: Kircaburun Kagan , Balta Sabah , Emirtekin Emrah , Tosuntas Şule Betül , Demetrovics Zsolt , Griffiths Mark D.
Published: April 2021

Objective Accumulating empirical research has emphasized that a wide range of online activities–such as using social networking sites–can be performed in order to compensate unattained needs or to cope with negative affect and psychopathological symptoms. Although the correlates of problematic social networking use have been extensively investigated, less is known about problematic YouTube use (PYU), an umbrella term grouping a number of different activities (e.g., viewing of online video games, watching specific YouTube channels). Furthermore, nothing is known concerning increasingly popular and distinct YouTube-related activities such as mukbang watching (i.e., watching livestream “eating broadcasts” where someone eats various foods in front of the camera while interacting with viewers). The aim of the present study was to examine the mediating role of problematic mukbang watching (PMW) on the relationships between depression and loneliness with PYU.Methods An online survey that comprised assessment tools for aforementioned variables was administered to 217 mukbang viewers (mean age=20.58 years, range 18–33 years).Results Results indicated that PMW was positively related to loneliness and PYU. Depression was positively and directly associated with PYU but was not associated with PMW.Conclusion Further research is required to better understand the psychological processes underlying problematic mukbang watching and its association with other mental health conditions (e.g., addictive disorders, eating disorders).
“Reading the Mind in the Eyes Test”: Translated and Korean Versions
Authors: Koo Se Jun , Kim Ye Jin , Han Jung Hwa , Seo Eunchong , Park Hye Yoon , Bang Minji , Park Jin Young , Lee Eun , An Suk Kyoon
Published: April 2021

Objective The Reading the Mind in the Eyes Test (RMET) was developed by using Caucasian eyes, which may not be appropriate to be used in Korean. The aims of the present study were 1) to develop a Korean version of the RMET (K-RMET) by using Korean eye stimuli and 2) to examine the psychometric properties of the Korean-translated version of the RMET and the K-RMET.Methods Thirty-six photographs of Korean eyes were selected. A total of 196 (101 females) healthy subjects were asked to take the Korean-translated version of the RMET and K-RMET. To assess internal consistency reliability, Cronbach’s alpha coefficients were computed, and test–retest reliability was assessed by the intraclass correlation coefficient (ICC) and Bland-Altman plots. Confirmatory factor analysis (CFA) and item analysis were also conducted.Results Internal consistency, measured by Cronbach’s alpha, was 0.542 for the Korean-translated version of the RMET, and 0.540 for the K-RMET. Test–retest reliability (n=25), measured by the ICC, was 0.787 for the Korean-translated version of the RMET, and 0.758 for the K-RMET. In CFA, the assumed single and 3-factor model fit indices were not good in the both types of RMETs. There was difficulty in discrimination in nine items of the Korean-translated version of the RMET and 10 items of the K-RMET.Conclusion The psychometric properties of both the Korean-translated version of the RMET and the K-RMET are acceptable. Both tests are applicable to the clinical population, as well as the general population in Korea.
The Burden of Agoraphobia in Worsening Quality of Life in a Community Survey in Italy
Authors: Preti Antonio , Piras Martina , Cossu Giulia , Pintus Elisa , Pintus Mirra , Kalcev Goce , Cabras Federico , Moro Maria Francesca , Romano Ferdinando , Balestrieri Matteo , Caraci Filippo , Dell’Osso Liliana , Sciascio Guido Di , Drago Filippo , Hardoy Maria Carolina , Roncone Rita , Faravelli Carlo , Musu Mario , Finco Gabriele , Nardi Antonio Egidio , Carta Mauro Giovanni
Published: April 2021

Objective Current nosology redefined agoraphobia as an autonomous diagnosis distinct from panic disorder. We investigated the lifetime prevalence of agoraphobia, its association with other mental disorders, and its impact on the health-related quality of life (HR-QoL).Methods Community survey in 2,338 randomly selected adult subjects. Participants were interviewed with the Advanced Neuropsychiatric Tools and Assessment Schedule (ANTAS), administered by clinicians. The diagnoses were based on the ICD-10 criteria. The Short-Form Health Survey (SF-12) was used to quantify HR-QoL.Results In the sample, 35 subjects met the criteria for agoraphobia (1.5%), with greater prevalence among women (2.0%) than men (0.9%): odds ratio (OR) 2.23; 95% CI: 1.0-5–2. Agoraphobia was more often seen among those with (n=26; 1.1%) than without (n=9; 0.4%) panic disorder: OR=8.3; 2.9–24.4. Co-morbidity with other mental disorders was substantial. The mean score of SF-12 in people with agoraphobia was 35.2±7.8, with similar levels of HR-QoL in people with (35.3±7.9) or without (34.8±7.3) panic disorder: ANOVA: F(1;33)=0.0; p=1.00.Conclusion One out of seventy people may suffer from agoraphobia in their lifetime. The attributable burden in terms of HR-QoL is substantial and comparable to the one observed for chronic mental disorders such as major depression, post-traumatic stress disorder, or obsessive-compulsive disorder.
Study on the Experiences of North Korean Defectors Through Qualitative Meta-Analysis
Authors: Ryu Jin-A , OH Eunkyung
Published: April 2021

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O verdadeiro impacto das aceleradoras nas startups
Authors: Azevedo Bruno Campos de
Published: April 2021

Este livro traz informações sobre características que influenciam o desempenho de uma startup, inclusive analisar se empresas que passam pelo processo de aceleração possuem desempenho melhor do que as que não passam. Explorou-se a ideia de como medir o desempenho de uma empresa, por meio dos aspectos cognitivos, em relação aos indicadores de desempenho de startups que passaram ou não pelo processo de aceleração. Investigou se as empresas, quando passam por programas de aceleração, são capazes de apresentar melhor desempenho, quando comparadas às empresas do mesmo ramo que não usufruíram das mesmas iniciativas. Foi desenvolvido um índice de medição de desempenho de startups - IDS, para fins de comparação entre as empresas que foram aceleradas e as que não foram. O presente trabalho foi executado entre os anos de 2014 a 2019 e baseou-se no cenário/ecossistema de startups e aceleradoras do Brasil, trazendo uma contextualização dos métodos utilizados pelas aceleradoras, dentro de um contexto mundial, nacional, regional e local.
Solusi Pelaksanaan Bimbingan dan Konseling dalam Implementasi Kurikulum 2013
Authors: Perdana M. Ananda Adhitya
Published: April 2021

This research aims to: 1) To understand further the need for the implementation of counseling guidance in schools, 2) To find out the obstacles faced in the implementation of counseling guidance in schools, 3) Looking for solutions for the implementation of counseling guidance in schools in the implementation of the curriculum 2013. Benefits: 1) Provide real meaning to the school about the importance of counseling guidance in schools, 2) Overcoming the obstacles that arise in the implementation of counseling guidance in the implementation of curriculum 2013. This article was prepared using literature and interview methods. BK Implementation Solutions in the implementation of the 2013 curriculum: 1) Enlightenment about the role and role of BK to the school principal as the highest authority in the school in order to avoid BK dysfunction; 2) There is a need for continuous training of all BK teachers on how to implement BK in the implementation of the 2013 curriculum; 3) There is a need to study the theme relation and sub theme of BK material with related subjects so that although there is no time for BK material counseling but can be integrated in subject matter of certain subjects; 4) Guidance and Counseling Study Program as a teacherproducing institution BK needs to undertake a continuous assessment of the performance of BK teachers as alumni.
Perkembangan dan metamorfosis serangga
Authors: Rahmat Anugrah
Published: April 2021

Serangga-serangga merupakan mahluk hidup yang berkembang dan bermetamorfosis
ベトナムからの人文社会科学メイン論文三本
Authors: Le Tam-Tri
Published: April 2021

ベトナムからの人文社会科学メイン論文三本を簡単に紹介する。
Sitti Nur Aiska
Authors: Aiska Sitti Nur
Published: April 2021

kedudukan hukum dan fungsi pemerintahan
In what ways to Confucianism and Daoism complement each other? In what ways do they oppose each other?
Authors: Si H.L. Cu
Published: April 2021

Confucianism one of the most prominent religious philosophies in China's history. It has existed for over 2,500 years. Inner virtue, morals, and regard for the world and its ideals are concerned. Daoism is a philosophy, a religion, and a way of life which originated in what is now the eastern Chinese province of Henan in the 6th century BCE.
The world within reach: an image database of reach-relevant environments
Authors: Josephs Emilie Louise , Zhao Haoyun , Konkle Talia
Published: April 2021

Near-scale spaces are a key component of our visual experience: whether for work or for leisure, we spend much of our days immersed in, and acting upon, the world within reach. Here, we present the Reachspace Database (RSDB), a novel stimulus set containing over 10,000 images depicting first person, reachable-scale, motor-relevant views (hereafter “reachspaces”), which reflect the visual input that an agent would experience while performing a task with her hands. These images are divided into over 350 categories, based on a taxonomy we developed, which captures information relating to the identity of each reachspace, including the broader setting and room it is found in, the locus of interaction (e.g., kitchen counter, desk), and the specific action it affords. Summary analyses of the taxonomy labels in the database suggest a tight connection between activities and the interaction spaces that support them: while a small number of rooms and interaction loci afford many diverse actions (e.g. workshops, tables), most reachspaces were relatively specialized, typically affording only one main activity (e.g. gas station pump, airplane cockpit, kitchen cutting board). Overall, this Reachspace Database represents a large sampling of reachable environments, and provides a new resource to support behavioral and neural research into the visual representation of reachable environments.
Reciprocal relationships between problematic internet use and psychological distress: A nine-month longitudinal study
Authors: Chang Ching-Wen , chen i hua , Strong Carol , Lin Yi-Ching , Tsai Meng-Che , Lin Chung-Ying , Pakpour Amir H. , Griffiths Mark
Published: April 2021

The causal relationships between problematic internet use and psychological distress remain controversial. The present study investigated the reciprocal relationships between problematic internet use (PIU, i.e., problematic social media use [PSMU], problematic gaming [PG]) and psychological distress (i.e., anxiety, depression). Hong Kong and Taiwan university students (N=645; nmale=266; mean=20.95 years [SD=5.63]) were recruited for a survey study, with follow-ups at three, six, and nine months after baseline assessment. The Bergen Social Media Addiction Scale, Internet Gaming Disorder-Short Form, and the Hospital Anxiety and Depression Scale were used to assess studied variables. Cross-lagged models were constructed to understand the reciprocal relationships between PIU and psychological distress. The level of anxiety significantly impacted the level of PSMU but not in the opposite direction. The level of PSMU significantly impacted the level of depression but not in the opposite direction. In addition, levels of PG and both types of psychological distress had reciprocal impacts on each another. Because PIU can lead to psychological distress, prevention programs on digital health are needed. Moreover, because there is a reciprocity between PG and psychological distress, psychological interventions to break the reciprocal relationship for those with serious PG and psychological distress are warranted.
Synchronising institutions and value systems: A model of opinion dynamics mediated by proportional representation
Authors: Segovia-Martín José , Tamariz Monica
Published: April 2021

People increasingly participate in online platforms where they copy, share and form their opinions. Social interactions on these platforms are mediated by digital institutions, which dictate information aggregation algorithms. This aggregation of information in turn affects the way users form and evolve their opinions. In this work, we examine the conditions under which convergence on shared opinions can be obtained in a social network where connected agents repeatedly update their normalised cardinal preferences (i.e. value systems) under the influence of a non-constant reflexive signal (i.e. institution) that aggregates populations' information using a proportional representation rule. We analyse the impact of institutions that aggregate (i) expressed opinions (i.e. opinion-aggregation institutions), and (ii) cardinal preferences (i.e. value-aggregation institutions). We find that, in certain regions of the parameter space, moderate institutional influence can lead to moderate consensus and strong institutional influence can lead to polarisation. In our randomised network, local coordination alone in the total absence of institutions does not lead to convergence on shared opinions, but very low levels of institutional influence are sufficient to generate a feedback loop that favours global conventions. We also show that opinion-aggregation may act as a catalyst for value change and convergence. When applied to digital institutions, we show that the best mechanism to avoid extremism is to increase the initial diversity of the value systems in the population.
The Normativity of Marriage and the Marriage Premium for Children’s Outcomes
Authors: Torche Florencia , Abufhele Alejandra
Published: April 2021

Children born to married parents have better health, behavioral, educational, and economic outcomes than children of unmarried mothers. This association, known as the "marriage premium," has been interpreted as emerging from the selectivity of parents who marry and from a positive effect of marriage. The authors suggest that the positive effect of marriage could be contextual, emerging from the normativity of marriage in society. They test this hypothesis using the case of Chile, where marital fertility dropped sharply from 66% of all births in 1990 to 27% in 2016. The authors find that the benefit of marriage for infant health was large in the early 1990s but declined as marital fertility became less normative in society, to fully disappear in 2016. Multivariate analysis of temporal variation, multilevel models of variation across place, sibling ?fixed effects models, and a falsification test consistently indicate that marriage has a beneficial effect when marital fertility is normative and a weak effect when is not. Generalizing from this case, the authors discuss contextual effects of diverse practices and statuses.
Stability Analysis of the Chaotic Lorenz System with a State-Feedback Controller
Authors: Jones Dan
Published: April 2021

The Lorenz model is considered a benchmark system in chaotic dynamics in that it displays extraordinary sensitivity to initial conditions and the strange attractor phenomenon. Even though the system tends to amplify perturbations, it is indeed possible to convert a strange attractor to a non-chaotic one using various control schemes. In this work it is shown that the chaotic behavior of the Lorenz system can be suppressed through the use of a feedback loop driven by a quotient controller. The stability of the controlled Lorenz system is evaluated near its equilibrium points using Routh-Hurwitz testing, and the global stability of the controlled system is established using a geometric approach. It is shown that the controlled Lorenz system has only one globally stable equilibrium point for the set of parameter values under consideration.
Ekstraksi Gelatin Tulang Ikan Gabus (Channa striata) Dengan Variasi Asam Yang Berbeda Pada Proses Demineralisasi
Authors: Jaya Fitra Mulia , Rochyani Neny
Published: April 2021

Palembang is the capital city of South Sumatra Province which has special foods which main raw material is fish. Many pempek entrepreneurs use cork fish meat for pempek raw material resulting in abundance of cork fish bone waste, therefore researchers utilize cork fish bone waste as an alternative into raw material in making gelatin. In this study, researchers used several weak acids derived from natural ingredients such as lime extract and starfruit extract and as a comparison researchers used synthetic weak acids namely citric acid in the market. The purpose of this research used several types of acids in the demineralization process to produce better gelatin production. This study used a Completely Randomized Design, with several acid treatments with and consisting of 3 (three) treatment levels, each treatment was repeated 3 times. The treatment in this study was a demineralization process with the addition of citric acid was (A1), lime extract was (A2), and starfruit extract was (A3). The parameters examined in this study include: Gelatin yield, Gelatin acidity (pH), Moisture and Sensory content (color and aroma). Data from proximate observations were analyzed by analysis of variance (ANOVA) and further tested based on the coefficient of diversity. From the results of this study, it was found that the best treatment of using variations in acid was gelatin demineralized using citric acid which produced a yield was 6%, a moisture content was 9.21%, pH 6, the panelist's favorite value of color was 4.3 and aroma 3, 8.
ANALISIS FEKUNDITAS DAN DIAMETER TELUR KERANG BAMBU (Solen lamarckii, Chenu 1843) DI ZONA INTERTIDAL DESA API-API KECAMATAN BANDAR LAKSAMANA KABUPATEN BENGKALIS
Authors: Langsana Laila , Nasution Syafruddin , Efriyeldi Efriyeldi
Published: April 2021

Bamboo clam (Solen lamarckii) is a type of mollusck of the Solenidae family known as “sepahat” by the people around Bengkalis. This study was conducted at Api-Api village waters, Bengkalis Regency  in January 2020. This study aims to investigate the fecundity produced by each female of  bamboo clam and egg diameter in each phase of maturity gonad stage. This study used survey method and sampling location determined by simple random sampling. Fecundity was calculated using the modificated volumetric method. The result showed, the fecundity of bamboo clam ranged from 290,325-1,902,391 with an average 1,105,285 ±1,074,724 eggs  for 50.3-72.8 mm in shell length. Egg diameter ranged between 30-110 μm. Average diameter in each phase of maturity gonad stage, the stage I gonads was 46.7 μm, stage II 65.2 μm, stage III 82.8 μm and stage IV 101 μm.
ANALISIS PERTUMBUHAN PROTEIN SEL TUNGGAL (PST) BAKTERI Bacillus cereus DENGAN MEDIA YANG BERBEDA
Authors: Nasution Mutiara Naimi , Feliatra Feliatra , Effendi Irwan
Published: April 2021

The Media is a material consisting of a mixture of nutrients used by microorganisms to grow and breed. Molasses and liquid waste know one of the alternative media which has the least inexpensive carbon source and is easily obtained from the waste food industry that is rich in nutrients and minerals, so it has the potential for bacterial growth of Bacillus cereus. The consetration of molasses used for growth medium is 1%; 1.5%; and 2% while liquid waste knows 8%, 10%, and 12%. Cell growth is measured by the method of Spectrophotometry, total plate count (TPC) and biomass while the incubation period of cell growth is measured every 0, 6, 12, 18, and 24 hours. The results showed from the molasses + skim milk and the tofu liquid waste + skim milk, the best medium of bacterial cell growth of B. cereus is a liquid waste know isolates K 12%. While the best growth concentrations molasses Medium bacterial B.cereus was N2% and K2%.