bluuebunny/crossref_metadata_2025 huggingface dataset:
Potensi ekstrak Solanum betaceum terhadap peningkatan sel spermatogenik pada mencit (Mus musculus) yang dipapar timbal asetat
Authors: Susanti Nurul Fatimah , I’tishom Reny , Khaerunnisa Siti
Published: July 2020

Background : Flavanoids are antioxidants that can prevent the negative effects caused by lead. The flavonoids contained in the Solanum betaceum extract have the potential to prevent the adverse effects of lead on the reproductive tract of rats because it can prevent oxidative stress. The purpose of this study was to prove the effect of Solanum betaceum extract on spermatogenic cells of mice exposed to lead acetate. The hypothesis in this study is that there is an effect of the administration of Solanum betaceum extract to an increase in the number of spermatogenic cells of mice (Mus musculus) exposed to lead

Method : this type of research was a true experimental laboratory (true experimental), the research design uses a randomized posttest only control group design approach. The total sample of 40 heads was divided into 5 groups. Group K-: control group without the provision of lead acetate and Solanum betaceum extract, group K +: group with 75 mg / KgBB of lead acetate for 32 days, group P1: group of treatment with 75 mg / KgBB of lead acetate extract + Solanum betaceum extract for 31 days + group 100 mg / gBB for 35 days, group P2: treatment group with 75 mg / kg lead acetate for 31 days + Solanum betaceum extract 200 mg / KgBB for 35 days, and group P3: treatment group with 75 mg lead acetate KgBB for 31 days + Solanum betaceum extract 400 mg / gBB for 35 days..

Results : The mean ± standard deviation of the highest cell spermatogenic was highest 2107.88±78.70.Conclusion : The administration of Solanum betaceum extract can increase the thickness of the seminiferous tubules epithelium and the diameter of the seminiferous tubules in rats (Mus musculus) which are exposed to lead acetat.
Driving-Related Adverse Events in the Elderly Men: A Population-Based Prospective Cohort Study
Authors: Kim Jae Sung , Bae Jong Bin , Han Kyuhee , Hong Jong Woo , Han Ji Hyun , Kim Tae Hui , Kwak Kyung Phil , Kim Kayoung , Kim Bong Jo , Kim Shin Gyeom , Kim Jeong Lan , Kim Tae Hyun , Moon Seok Woo , Park Jae Young , Park Joon Hyuk , Byun Seonjeong , Suh Seung Wan , Seo Ji Young , So Yoonseop , Ryu Seung-Ho , Youn Jong Chul , Lee Kyoung Hwan , Lee Dong Young , Lee Dong-Woo , Lee Seok Bum , Lee Jung Jae , Lee Ju Ri , Jeong Hyeon , Jeong Hyun-Ghang , Jhoo Jin Hyeong , Han Ji Won , Kim Ki Woong
Published: July 2020

Objective This study estimated the incidence of driving-related adverse events and examined the association of cognitive function with the risk of future driving-related adverse events in the elderly Korean male population.Methods We analyzed 1,172 male drivers aged 60 years or older in the Korean Longitudinal Study on Cognitive Aging and Dementia (KLOSCAD). Using the data from Korean National Police Agency, we classified the participants into three groups: safe driving (drove for 2 years after baseline without a traffic accident or repeated violations), driving cessation (stopped driving), and risky driving (one or more traffic accidents or repeated violations). We estimated the incidences of driving cessation and risky driving, and examined the effect of cognitive function on their risks.Results The incidence of driving cessation and risky driving in the Korean male drivers aged 60 years or older was 19.3 and 69.9 per 1,000 person-years respectively and increased in the late 80s. Drivers with better baseline Word List Memory Test scores showed less risky driving (OR=0.94, p=0.039).Conclusion Driving-related adverse events increased in late 80s, and better memory function was protective against these events.
DESKRIPSI TINGKAT KECEMASAN REMAJA PUTRI YANG MENGALAMI MENARCH DI SMP ISLAM TERPADU KHOLISATURRAHMI BINJAI
Authors: Suarni Leny
Published: July 2020

Menarche is the first menstruation that usually occurs in the age range of 10-16 years or in early adolescence in the middle of puberty before entering reproduction (Proverawati and Misaroh, 2009). Menarche is the first mestruasi blood expenditure, the arrival of menarche can cause positive or negative reactions, a positive reaction if the individual is able to appreciate, understand and accept menarche as a sign of maturity that is owned by a woman otherwise a negative reaction will cause anxiety. Anxiety is a condition where an individual or group experiences anxiety (judgment or opinion) and autonomic nervous system activity in responding to threats that are unclear, non specific. The purpose of this research is to determine the level of anxiety of adolescents facing menarche in  IT Khalisaturrahmi Binjai, mild anxiety level, moderate anxiety level, severe anxiety level. The type of research used is descriptive. The population in this study amounted to 32 respondents. The sample in this study amounted to 24 respondents with consecutive sampling techniques. The results showed that respondents experienced mild anxiety levels of 12 people (50%), 8 people (33%) moderate anxiety and 4 people (17%) with severe anxiety. From the results of the study it can be concluded that the level of anxiety of adolescents facing menarche in IT Middle School Khalisaturrahmi Binjai majority in the category of mild anxiety levels, amounting to 12 respondents or (50%). Further researchers are advised to conduct research on the handling of anxiety in young women in the face of menarche.

Keywords: Anxiety, Princess Adolescents, Menarche
STUDI LITERATUR LATIHAN BERJALAN MENSTABILKAN TEKANAN DARAH PADA HIPERTENSI
Authors: Suharto Suharto , Jundapri Kipa , Pratama Muchti Yuda
Published: July 2020

The risk factors of cardivasculer’s diseases it was caused by high blood presure. High blood presure was a factor who caused by hypertention and if blood presure was uncontrolling its caused heart attack and heart failuare. Walking exercise is a submaximal test who recomended for maintenence systolic and dyastolic blood pressure for hypertention. Literature review was collecting from 2010-2019. Data was perfomanced by using CINAHL, Proquest, and Science Direct. The result of this literature review was obtained 30 articles related about walking exercise and hypertention. There was five articles who relevant with this criteria of the study. These articles used quantitative and qualitatif designs. The conclusion was walking exercise can maintenance blood pressure.

Keywords: walking exercise, blood presure, systolic dyastolic
Growth-Mindset Interventions at Scale: Experimental Evidence From Argentina
Authors: Ganimian Alejandro J.
Published: July 2020

This is one of the first evaluations of a “growth-mindset” intervention at scale in a developing country. I randomly assigned 202 public secondary schools in Salta, Argentina, to a treatment group in which Grade 12 students were asked to read about the malleability of intelligence, write a letter to a classmate, and post their letters in their classroom, or to a control group. The intervention was implemented as intended. Yet, I find no evidence that it affected students’ propensity to find tasks less intimidating, school climate, school performance, achievement, or post-secondary plans. I rule out small effects and find little evidence of heterogeneity. This study suggests that the intervention may be more challenging to replicate and scale than anticipated.
SUBSTANCE DEPENDENCE, STIGMA AND CULTURES
Authors: Shibli Naveed , Jaffri Sarwat Ali
Published: July 2020

Randomly selected 220 substance (Heroin) dependents who were admitted to different drug rehabilitation centers completed 'Internalized the Stigma of Substance Abuse Scale', for 'drug stigmatization', 'Social Functioning Questionnaire', for 'social functioning' and 'Robson Self-concept Questionnaire', for 'self-concept'.It was assumed that the scores of substance (Heroin) dependents belonging to the Oriental culture (Eastern-subcontinent culture) could be comparable to the scores of available Western culture substance dependents? The SPSS analysis showed a certain resemblance. Internalized stigma turned out to be significantly negatively correlated with self-image (p < .01), with self-concept (p < .01) and with social functioning (p < .01). Some additional context issues were also discussed.
MOBIS-COVID19/12: Results as of 29/06/2020 (post-lockdown)
Authors: Molloy Joseph , Tchervenkov Christopher , Schatzmann Thomas , Schoeman Beaumont , Hintermann Beat , Axhausen Kay W.
Published: July 2020

To slow down the spread of the Coronavirus, the population has been
instructed to stay at home if possible. This measure consequently has a
major impact on our daily mobility behaviour. But who is being affected,
and how? The MOBIS-COVID-19 research project, an initiative of ETH
Zurich and the University of Basel, is a continuation of the original
MOBIS study. The aim of the project is to get a picture of how the
crisis is affecting mobility and everyday life in Switzerland.
Praksis Orangtua Dalam Mendidik Anak Menurut Amsal 22 : 6 Terhadap Perilaku Sosial - Ekspresif Siswa
Authors: Lahagu Ardianto
Published: July 2020

Parents have an important role in every aspect of children's lives with social behavior. Socialexpressivebehavior of a person can determine the merits of a society's assessment of that person. Ifsomeone has a good social-expressive behavior, then society will judge that person as a person ofgood character, and vice versa. God gives instructions to parents to educate their children inProverbs 22: 6. The role of parents in educating children is contained in the commands accordingto Proverbs 22: 6, namely maintaining, training, guiding or guiding, and leading; with the aim thatchildren become successful people in their lives, and not deviate from the path of parentaleducation, as written in Proverbs 22: 6, which is the right path according to God's Word. Nondeviantbehavior can be seen from how children love God, love themselves, love others, and alsolove the environment. Social-expressive behaviors, among others, are competitive and noncompetitive,aggressive and non-aggressive, calm or calm and socially uneasy, as well as showingoff or showing themselves and not showing themselves. From the role of parents in educatingchildren, children are expected to be able to establish good social relationships with others, beable to control themselves, and be able to be mature.
Synergy between callous-unemotional traits and aggression in preschool children: cross-informant and cross-cultural replication in the UK Wirral Child Health and Development Study, and the Colombian La Sabana Parent-Child Study
Authors: Obando Diana , Hill Jonathan , Sharp Helen , Pickles Andrew , Fisher Louise , Wright Nicola
Published: July 2020

Although prospective studies find that CU traits increase risk for later aggression, children with CU traits but without aggression have been identified, implying that the incremental effect of CU traits may be evident only in the presence of aggression. We examined this hypothesis, seeking replication across same and cross-informant designs, and UK and Colombian samples. In a UK epidemiological cohort (WCHADS), CU traits and aggression were assessed at age 3.5, and aggression at 5.0 years by mother (N=687) and partner report (N=397). In a Colombian general population sample, CU traits were assessed at age 3.5 and aggression at ages 3.5 and 5.0 by mother report (N=220). Our analyses consistently showed associations between 3.5 years CU traits and 5.0 years aggression moderated by aggression at 3.5 years, with interaction terms in the UK, same informant, 𝛽=.07 p=.014 cross-informant, β=.14 p =.002 and in Colombia, β =.09 p=.128. In each case, as hypothesised, the interaction arose from a stronger association between CU traits and later aggression in children who were already aggressive. Our findings imply a major role for CU traits in the maintenance and amplification of already established aggression, and cast doubt on their contribution to its origins.
Computing sums in terms of beta, polygamma, and Gauss hypergeometric functions
Authors: Qi Feng , Huang Chuan-Jun
Published: July 2020

In the paper, by virtue of the binomial inversion formula, a general formula of higher order derivatives for a ratio of two differentiable function, and other techniques, the authors compute several sums in terms of the beta function and its partial derivatives, polygamma functions, the Gauss hypergeometric function, and a determinant. These results generalize known ones in combinatorics. This preprint has been formally published as "Feng Qi and Chuan-Jun Huang, Computing sums in terms of beta, polygamma, and Gauss hypergeometric functions, Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales Serie A Matematicas, Vol. 114, Paper No. 191, 9 pages (2020); available online at https://doi.org/10.1007/s13398-020-00927-y."
Psycholinguistic norms for more than 300 lexical signs in German Sign Language (DGS)
Authors: Trettenbrein Patrick C. , Pendzich Nina-Kristin , Cramer Jens-Michael , Steinbach Markus , Zaccarella Emiliano
Published: July 2020

Sign language offers a unique perspective on the human faculty of language by illustrating that linguistic abilities are not bound to speech and writing. In studies of spoken and written language processing, lexical variables such as, for example, age of acquisition have been found to play an important role, but such information is not as yet available for German Sign Language (Deutsche Gebärdensprache, DGS). Here, we present a set of norms for frequency, age of acquisition, and iconicity for more than 300 lexical DGS signs, derived from subjective ratings by 32 deaf signers. We also provide additional norms for iconicity and transparency for the same set of signs derived from ratings by 30 hearing non-signers. In addition to empirical norming data, the dataset includes machine-readable information about a sign’s correspondence in German and English, as well as annotations of lexico-semantic and phonological properties: one-handed vs. two-handed, place of articulation, most likely lexical class, animacy, verb type, (potential) homonymy, and potential dialectal variation. Finally, we include information about sign onset and offset for all stimulus clips from automated motion-tracking data. All norms, stimulus clips, data, as well as code used for analysis are made available through the Open Science Framework in the hope that they may prove to be useful to other researchers: https://osf.io/mz8j4/
After the Financial Crisis: The Evolution of the Global Income Distribution Between 2008 and 2013
Authors: Milanovic Branko
Published: July 2020

Using the newly created, and in terms of coverage and detail, the most complete household income data from more than 130 countries, the paper analyzes the changes in the global income distribution between 2008 and 2013. This was the period of the global financial crisis and recovery. It is shown that global inequality continued to decline, largely due to China’s growth that explains one-half of global Gini decrease between 2008 and 2013. Income growth of the global top 1 percent slowed significantly. The slowdown is present even after survey data are corrected for the likely underestimation of highest incomes. The paper ends with a discussion of the effects of the financial crisis in the light of an even more serious looming crisis caused by the 2019-20 pandemic. (Stone Center on Socio-Economic Inequality Working Paper)
The Effectiveness of Multimedia Learning in Enhancing Reading Comprehension Among Indigenous Pupils
Authors: bin Abdul Samat Mohamad Subaidi , Aziz Azlina Abdul
Published: July 2020

The development of education is growing, and the technology-infused lesson is a powerful tool to attract pupils' attention, especially in reading. This approach can be seen as an adaptive movement to equip the learning process and the fourth industrial revolution. Nowadays, the demand of the technology-infused lesson is increasing as it is proven to help pupils learn the language better. Hence, this study explores multimedia learning as an approach to teaching reading comprehension. Besides, this study aims to answer two questions, which are the effectiveness of multimedia learning in helping indigenous pupils learn comprehension and which elements of media are effective in enhancing reading comprehension among indigenous pupils in Malaysia. Two instruments used to collect the data from 20 indigenous pupils in one primary school located in Kluang, Malaysia, and an action research design was used to achieve the purpose. The respondents were chosen through the judgment sampling technique. SPSS was used to analyse the data collected from the test, and thematic analysis was employed to analyse the semi-structured interview. The result shows that the implementation of multimedia learning in teaching reading comprehension is useful as the combination of multiple elements of media scaffolded the process of understanding. On the other hand, audio is the least effective in helping pupils comprehend the information.
Enhancing Critical Writing towards Undergraduate Students in Conducting Research Proposal
Authors: Yamin Moh. , Purwati Oikurema
Published: July 2020

Critical thinking in writing for learners is needed to able to build a sense of crisis towards any issues. This capacity is required to create a framework based on reflecting, exploring, and solving some practical problems in their learning, work, and daily lives. This article aims to enhance critical writing towards undergraduate students in conducting research. The research method used is descriptive method with qualitative approach. The data used to analyze is gotten from many research articles in international journals discussing critical writing to conduct a research proposal. The research discussion and result state that learners’ capacity to be familiar with critical thinking writing is essential. It deals with brainstorming the problems of research topics, reflecting, and exploring the issues of research topics. Students should also have the capacity to write the research background, research problem, review of related literature, and research method based on the guidelines of the research proposal. The writing skill relating to the competence of organization, elaborating content, paying attention mechanics, language use, and vocabulary become the leading and supporting capital to be successful in conducting the research proposal.
An Empirical Study of Schema Theory and Its Application in Improving University Students’ Writing Ability
Authors: ALYousef Sarah Saleh
Published: July 2020

The present study aimed at enhancing university students’ writing ability through using schema theory. The study adopted the quasi-experimental pre-posttest experimental-control group design. The participants consisted of 58 English foreign language (EFL) students and 51 EFL professors who had taught essay writing. The students were divided into two groups: 29 students in a control group and 29 students in an experimental group. To gather the data, the researcher used pre and post- essay writing tests, interviews, and a five-point Likert scale questionnaire. The results of the study showed that there was a statistically significant difference between the performance of the experimental group and the control group on the posttest in favor of the experimental group. This indicated that applying schema theory has a positive effect on improving university students’ writing ability. Finally, this study recommended that EFL teachers should encourage EFL students to share their prior experiences, knowledge, and information in the pre- writing phase in order to help them improve their writing skills.
Investigating the Use of Internet Applications for Teaching at Higher Educational Level in the Indonesian Context
Authors: Asri Tri Mega , Irmawati Dini Kurnia , Dewi Dian Novita
Published: July 2020

Regarding the need for lecturers to upgrade their competence in making use of Information and Communication Technology (ICT) and internet in their teaching practices in 4.0 era as stated in The Teachers and Lecturers Act No.14/2005, this study aims to investigate the use of internet application for teaching students in the university level. More specifically, this study is intended to find out the kinds of internet applications used by lecturers in Universitas Brawijaya in their teaching practices. This study employs a mixed-method resulting in qualitative and quantitative data. Data are collected using questionnaires distributed to 137 young lecturers with an age range of 30-40 years representing 16 faculties at Universitas Brawijaya. Then, it is continued with interviews in the form of Focus Group Discussion (FGD) to capture further information related to the use of the applications. The results show that Google Classroom has been used by most of the participants. Then the other kinds of internet applications used include Kahoot.com, Edmodo, Virtual Learning, EdPuzzle, Email, Moodle, WPLMS, Youtube, Google Form, Blog, Turnitin, Quissis, Classmaker, and Schoology. In relation to the limitations of the present study, future researchers are recommended to investigate the implementation of each of the applications to find out its effectiveness in helping students learn the subject-matter being taught. Moreover, further research related to students’ perceptions in the use of the above-mentioned applications is important to be done. Also, investigating the use of internet-based applications for students in different grades and levels of education is still an interesting area to be studied further
Preparatory Learners’ Perspectives of Learner Autonomy in the Saudi Context
Authors: Asiri Jameelah , Shukri Nadia
Published: July 2020

Learner autonomy is a developing concept that has been the focal point of number of research papers investigating language learning. It has been under investigation by number of scholars and researchers over the years, the concept of learner autonomy has been supported by number of researchers, others attempted to prove that it does not fit all learners of different backgrounds. In this research paper, the focus is mainly on learners’ perspectives of learner autonomy, what do they know? To what extent the students understand the concept of learner autonomy? Developing autonomous learners is an area that needs to be explained. There are limited studies conducted in the Saudi context therefore, this study investigates Preparatory year female EFL students’ perspectives of learner autonomy in the Saudi context. Moreover, it examines whether the learners have the knowledge and the competence to develop their learning. The perspectives and views of 150 learners were collected using a questionnaire. The study follows a mixed methods approach. The reviewed literature showed that implications of learner autonomy reflected positively on learners (Burkert & Schwienhorst. 2008; Han, 2015). The main findings of this study revealed that students participated in this study had negative perspective of learner autonomy
Using Strategic Reading Techniques for Improving EFL Reading Skills
Authors: Okasha Mohammed Ahmed
Published: July 2020

The present study aimed to investigate the effectiveness of the strategic reading techniques for improving EFL reading skills. The present study utilized the quasi-experimental research design. The researcher divided the participants into two groups. The innovative group used strategic reading techniques, while the control group did not receive any training except for the regular method. The main question raised in this study was to what extent were the strategic reading techniques effective in improving reading skills for Jazan University students? To this end, the researcher collected data through a questionnaire and a strategic reading test. Furthermore, a model of teaching program, based on using strategic reading techniques, is improved and tested with a group of learners in the chosen university in Saudi Arabia. The findings revealed that the learners need an innovative strategy to help them improve their reading. The application of “clarifying, prediction, questioning, and summarizing” CPQS strategy as a pedagogy helped the learners improve their reading skills. The conclusion of the research recommends that there is a need for using new techniques for providing feedback to EFL learners in reading, such as peer-review, reading conferences, and self-correction.
Translation Quality Assessment of Proverbs from English into Arabic: The Case Study of One Thousand and One English Proverbs Translated into Arabic
Authors: Alfaleh Bodour Abdulaziz
Published: July 2020

Proverbs are very important in every language and culture. However, translators sometimes mistranslate them. Thus, this study sheds light on the translation quality assessment of proverbs. These proverbs are collected from One thousand and one English proverbs translated into Arabic by Omar Jabak. This study aims at pointing out the most frequently used strategies for translating proverbs, and investigating how far Na Pham's error analysis model is appropriate for the description and assessment of the strategies used in translating these proverbs. Na Pham's error analysis model is used to identify comprehension, linguistic and translation errors. Moreover, this study aims at detecting the most common errors under each strategy used. The findings of this study show that Na Pham's error analysis model is appropriate for the assessment. It also reveals that there are certain types of errors which are committed more often than others. In addition, it uncovers that the types of errors detected when translating proverbs using partial equivalence and paraphrasing are very similar. Comprehension errors, giving an inaccurate meaning, and distorting the meaning are the most frequently detected errors when translating proverbs using partial equivalents and paraphrasing. On the other hand, wrong lexical choice and too-literal translation are the most frequently detected errors when using literal translation. Finally, this study suggests solutions for improving the quality of Arabic translations of proverbs. In addition, some recommendations for further studies are suggested.
Promoting Students’ Intercultural Communicative Competence through English Literary Texts: Students’ Attitudes and Teachers’ Challenges
Authors: BAGUI Hayat , ADDER Fatima Zohra
Published: July 2020

The focal aim of the current paper is to take an in-depth look at the effect of the English culture on foreign language learners. In this regard, the researchers inquire about how intercultural communication affects English as a foreign language (EFL) students during the process of learning English literary texts carrying aspects of the target culture. This study, thus, endeavours at shedding light on students’ attitudes towards some aspects of the English culture when studying literary texts. It also intends at scrutinizing teachers’ strategies in teaching culture through literature; referring to their active roles in fostering intercultural awareness and Intercultural Communicative Competence (ICC) among their learners. To do so, the researchers collected data through a questionnaire addressed to forty first-year Master students of Literature and Civilization in the department of English at Tlemcen University supported by an interview with teachers of literature. The findings revealed that most students exhibit negative attitudes towards some aspects of the English culture when studying literature. Their responses demonstrate that they are unaware and ignore the differences between cultures i.e., they are not culturally competent enough to avoid intercultural clash within various lectures of literature. The results also showed that teachers peacefully attempt to provide the appropriate teaching techniques and strategies to integrate teaching culture through literary texts to foster tolerance and empathy with speakers’ target language, identity, and culture.
PROFILE OF STUDENT PEDAGOGICAL CONTENT ABILITIES INTEGRATED FIELD INTRODUCTION PRACTICE STUDY PROGRAM OF PHYSICS EDUCATION
Authors: Muslimin Muslimin
Published: July 2020

This research aims to describe the profile of pedagogical knowledge (PK) capabilities, content knowledge (CK), and pedagogical content knowledge (PCK) of physics students who are conducting integrated field recognition practices (PPLT). This research is qualitative descriptive research, where all data are collected based on facts obtained in the field, so descriptive data were obtained from respondents who were selected. The research subjects involved 6 physics education students who conducted PPLT at school as respondents. The selected category is based on a cumulative achievement index. The selected respondents were 2 high ability students, 2 medium students, and 2 low ability students. Data obtained through pedagogical knowledge observation sheets, content knowledge tests, and pedagogical content knowledge observation questionnaires. The data was taken from PPLT student learning compilation in schools. Based on the results of research on the ability of PK, CK, and PCK PPLT physics education students obtained, that students who have high PK and CK abilities have high PCK abilities, while students who have PK abilities and low CK abilities also have high PCK abilities.
SIMULASI POLA ALIRAN FLUIDA DALAM DAERAH DENGAN BATAS TIDAK TERATUR MENGGUNAKAN METODE ELEMEN HINGGA
Authors: Defrianto Defrianto , Safitri Dwi Putri Cahya
Published: July 2020

Research of ideal fluid flow on irregular domain by variation mesh has been done. Laplace equation was used to model velocity potential and the gradient was used to velocity. Boundary condition for inlet was chosen to be 15 , while for outlet was 30  and Neumann boundary condition on lateral side. The developed model shows that uniform flow was happened on straight channel and free vortex on the curved one. The analytical and computational calculation has similar results, that is 23.7787  and 23.7792  The percentage of the difference is 2.8  wich is very small, therefore this method is accurate enough to model pattern of ideal fluid flow on irregular domain.
ANALISIS SIFAT MAGNETIK DAN STRUKTUR PARTIKEL PASIR BESI PANTAI ARTA PARIAMAN SUMATERA BARAT MENGGUNAKAN BALL MILLING
Authors: Yulia Wita , Erwin Erwin
Published: July 2020

Analisys of magnetic properties and structure of particles of iron sand of Arta, Pariaman beach West Sumatra. Has been conducted the iron sand samples were dried, then the iron sand separation process was carried out using  Iron Sand Separator (ISS). Next, the sample was milled  for 30, 60 and 90 hours. The separation between magnetic particles and non magnetic particles was done using Neodymium Iron Boron (NdFeB) magnet. Magnetic induction measurements were carried out using Pasco PS-2162 Magnetic Probe which measured the total magnetic induction of solenoid (solenoid with core sample and milled sample(consentrate II)) as a function of electric current of 1-8 A for a fixed distance of 1 mm. Identification of the content of elements contained in iron sand before and after processing with Ball Milling for 90 hours was carried out using X-Ray Fluorescence (XRF). The phase of magnetic particles processed by Ball Milling was determined using X-Ray Diffraction (XRD). The calculation results show that the magnetic susceptibility of the sample increases with increasing Ball Milling time, from (69426,19 × 10-5 – 80332,13 × 10-5). These values are in the interval 220 - 380.000 × 10-5of the Ilmenite mineral. The magnetite phase appears more than the maghemite phase and the hematite phase after Ball Milling for 90 hours. The particle size of magnetik particle decreases as milling time increase, this trend is confirmed by the result of  XRD.
SEGMENTASI CITRA PARU-PARU MENGGUNAKAN METODE KONTUR AKTIF DENGAN VALIDASI ROC
Authors: Syaputri Sintha , Zulkarnain Zulkarnain
Published: July 2020

Segmentation is the process of separating parts of objects from the background by dividing images that have different object intensities with each other such as in imaging of body parts. Active contour segmentation was used for medical imaging that resistant to noise around objects. This study used 5 chest X-Ray images, specifically to the lungs with a grayscale format measuring 256 x 256 pixels, through the preprocessing process and filtering  a Gaussian filter, each image was inputted to the R2015a version of the matlab GUI program. Then the segmentation had done by using the active contour method. In this method a curve in the form of a small circle was placed on the edge of object to be segmented. The curve will move according to the shape of the outer edge of the lung based on the values of active contour parameters such as Alpha, Beta, Gamma, Kappa, WEline, WEdge, WEterm and Iteration. Validation was done by using the ROC (Receiver Operating Characteristic) method and were obtained an average percentage with an accuracy value of 96.26%, a specificity of 96.47% and a sensitivity of 76.54%.
KAJIAN SUSEPTIBILITAS MAGNETIK PASIR BESI PANTAI ARTA SEBAGAI FUNGSI JARAK DARI TEPI LAUT
Authors: Novalia Irma , Erwin Erwin
Published: July 2020

Magnetic Susceptibility measurements and the identification of elements of iron sand from Arta beach of Pariaman West Sumatera have been done. The samples were dried first under the sun before the separation between magnetic particles of iron sand and non-magnetic particles using Iron Sand Separator. Identification elements of iron sand was done using X-Ray Fluorescence. The total value of magnetic induction was measured using a magnetic Pasco probe PS-2162 using a solenoid 2000 coils turns, dimensions of 3 cm in diameter and 10 cm in length. The solenoid was given an electric current with variations ranging from 2 A – 8 A. The distance between magnetic probe and one end of solenoid was kept constant that was 1 mm. The next experiment was to measure the function of distance ranging from 1 – 5 mm with constant applied current of 8 A. When electric current increase then the total magnetic induction also increase. Total magnetic induction value decreases as the distance increases. Magnetic susceptibility was calculated based on total magnetic induction and magnetic induction of core currents with constant current of 8 A and distance of 1 mm. The value of magnetic susceptibility obtained in the range (2164,71-3159,99)x10-5 which consist of ilmenite mineral (FeTiO3; Antiferromagnetic).Keywords :  iron sand, magnetic suseptibility, iron sand separator, solenoid, magnetic induction, and  x-ray fluorescence.
Investigation of Job Satisfaction and Occupational Safety Perceptions of Employees in Wastewater Treatment Plants: Study of Istanbul
Authors: Uçan Rüştü , Şanlıer Hakan , Özay Müge Ensari
Published: July 2020

Background: There exist many fatal occupational accidents in the works carried out in wastewater treatment plants.

Objective: This research was carried out to determine the relationship between job satisfaction levels and occupational safety perceptions of employees working in wastewater treatment plants.

Methods: In this study, a questionnaire including Minnesota Job Satisfaction Scale and Occupational Safety Scale is applied to a total of 161 people aged 16-65 years working in two different Advanced Biological Wastewater Treatment Plants in Istanbul by simple random sampling. Statistical Package for Social Science version-22 was used. Seventeen hypotheses were analyzed to show the relation between the occupational safety perceptions and socio-demographic parameters of employees.

Results: The results show that there is no significant relationship between job satisfaction and occupational safety perception of the personnel working in wastewater treatment plants (F=0.096 and p=0.227 >0.05). On the other hand, it is found that there is a statistically significant difference between the level of job satisfaction perception and age of the employees (F=2.358 and p=0.002 <0.05), as well as monthly income ranges (F=4.126 and p=0.008 <0.05).

Conclusion: Consequently, the hazards associated with the work should be explained to employees of the wastewater treatment plant in detail. Furthermore, it is suggested to maintain an increase in wages to increase job satisfaction.
Work Related Musculoskeletal Disorders in Electrical, Telecommunication and Instrument Mechanics of Armed forces
Authors: Roli Dave , Ali Irani , Neekhra Vikram
Published: July 2020

Background: Modern defence system has a significant role of electrical, electronic and instrument technicians in armed forces. Despite their intensive role, little is known about work-related musculoskeletal disorder in these technicians.

Objective: To investigate the prevalence of the work-related musculoskeletal disorder in defence personnel involved in electrical and electronic maintenance and repairs.

Methods: A cross-sectional study was carried out for 3 years, in Electrical, telecom and instrument defence technicians (N = 164). Prevalence of work-related musculoskeletal disorder was assessed using the Nordic Musculoskeletal Questionnaire. Effect of age, working hours, work experience, Basal metabolic index and type of job on the prevalence of work-related musculoskeletal disorder was investigated using logistic regression analysis.

Results: A total of 119 (72.56%) respondents reported work-related musculoskeletal disorder with 53.04% multiples & 19.51% single work-related musculoskeletal disorder. Simultaneous presence of neck, shoulder and upper back work-related musculoskeletal disorder were observed. Highest rate of work-related musculoskeletal disorder was in neck (44.44%), followed by shoulder (27.16%), ankle/ foot (14.81%), elbow/ forearm (12.96%), low back (11.72%) and wrist/ finger (9.87%). Neck (44%) related work-related musculoskeletal disorder were highest across all job crafts. Work experience (p = 0.012; OR = 0.87; 95% CI – 0.78- 0.97), working hours (p  = 0.031; OR= 1.73, 95% CI – 0.58-5.12) smoking (p = 0.00 ; OR = 5.3,  95 % CI = 4.3 – 8.48) and job crafts like electrician (p = 0.434; OR = 1.89, 95% CI = 1.08-3.31) and telecom mechanics (p = 0.026; OR = 1.26, 95% CI  =0.74 – 2.15) were significantly associated as risk factors of work-related musculoskeletal disorder.

Conclusion: High prevalence of work-related musculoskeletal disorder was observed in electrical, telecommunication & instrument mechanics, with higher multiple work-related musculoskeletal disorder. Working hours, work experience, job craft and smoking were highly associated with a work-related musculoskeletal disorder. We suggest suitable ergonomic intervention and awareness program along with smoking control drive to reduce the risk of work-related musculoskeletal disorder.
Mężczyzna między matriarchatem i sadyzmem
Authors: Potkański Jan
Published: July 2020

The Polish culture suggests to the men two stances: subjugation to the (real or imaginary) female power or, to the contrary, aggressive elimination of “femineity.” The article analyzes these stances as presented in certain works of fiction and their worlds. Femineity is eliminated under the model of homosocial sadism, which must be distinguished both from the traditional patriarchy and from – denied or sublimed – homosexuality. The issue is first discussed based on Wzgórze psów by Jakub Żulczyk; then it is tracked back to the works displaying similar psychosocial structures, even though they may not obviously belong to the same historical literary community (despite their chronological proximity). These works are: Zwał by Sławomir Shuty, Ciało obce by Rafał Ziemkiewicz, White Raven by Andrzej Stasiuk, Morfina by Szczepan Twardoch and His Current Woman by Jerzy Pilich. The theoretical tools applied come from politicized versions of the late psychoanalysis and schizoanalysis (along the Lacan – Deleuze – Theweleit line).
Peluang Pelaksanaan Manajemen Kolaboratif dalam Pengembangan Kawasan Situs Kota Cina sebagai Potensi Pariwisata di Kota Medan
Authors: Situngkir Biliater , Lubis Zulkifli , Kadir Abdul
Published: July 2020

The development of the Chinese city site area as a tourism potential in the city of Medan is very important considering the city of Medan does not yet have natural tourism objects that are well managed. The type of study used in this research is descriptive with a qualitative approach where research is carried out to create a tourism development using the Collaborative Management (Co-Management) method. To obtain data and to deepen the implementation of collaborative management, in-depth interviews were conducted with key informants and questionnaires so that the data needed in this study was complete. Data obtained in the field, both secondary data and primary data will be compiled, presented and analyzed with a qualitative approach in the form of exposure which will then be analyzed in accordance with the research problem undertaken. The results of research conducted show that the community has been involved in the development of tourism in the Chinese city site area. But the community is still walking alone in the development of tourism. With the concept of collaborative management, it will certainly be in developing tourism that is more focused and more targeted as desired. From this research it can be concluded that the area of the Chinese city site has a huge opportunity to be developed into the tourism sector that can provide benefits for both the government, the community and the parties involved in developing tourism.
Identitas Politik dan Multikulturalisme: Penguatan Identitas Politik Etnis Tionghoa Pasca Orde Baru
Authors: Suryani Suryani , Azmy Ana Sabhana
Published: July 2020

Reformation movement of 1998 being a starting point from so many dynamical changing of national politics in Indonesia. Chinese that has a strong historical root in Indonesia, being one of part of societies that used the reformation momentum as a way to involve into politics. This article analyzed the phenomena of strengthening Chines political identity post new order, and to analyzed the relation between strengthening Chinese political identity and multiculturalism in Indonesia.By using a qualitative methodolgy, those collected datas in this research, was analyzed by political identity theory, multiculturaism concept, and social capital theory. This research found that there are things that relate to the strengthening Chinese political identity post new order in Indonesia. The changing of political orientation of Chinese occured because the strong social capital and the changing of government policy that relate to the citizenship status. Those supported by a good understanding of multiculturalism by Indonesian society.
Peran Kepemimpinan Bupati Serdang Bedagai Ir. H. Soekirman dalam Mengembangkan Program Literasi di Kabupaten Serdang Bedagai
Authors: Marwan Agus , Harahap R Hamdani , Purba Amir
Published: July 2020

Serdang Bedagai has successfully developed a literacy program. This success has led to Serdang Bedagai receiving the Literacy Award from the Ministry of Education and Culture in 2017. This success cannot be separated from the leadership role of Ir. H. Soekirman as Regent of Serdang Bedagai. There are two main roles of the Regent's leadership, Ir. H. Soekirman, in developing the literacy program in Serdang Bedagai. First, it acts as a literacy model. Soekirman has set an example by his fondness for reading books, writing books, writing rhymes and poetry. Every year he reads at least 6 books, and has produced 12 of his own. Second, it acts as a policy maker to make programs related to literacy. With his role, Soekirman has established local regulations related to literacy, Decree of the Literacy Program Implementation Team, Library Development Decree, and budget allocation policy for literacy
Motif Ekonomi Etnis Karo di Kawasan Sekitar Universitas Sumatera Utara
Authors: Ginting Muhammad Adenan , Badaruddin Badaruddin , Lubis Zulkifli
Published: July 2020

This study aims to see the economic motives of the Karo ethnic group in developing and surviving in the USU region. This type of research uses a qualitative approach, the research location is in Jalan Jamin Ginting Medan or specifically in the Padang Bulan area, precisely from the campus intersection to the Harmonika Road intersection and the Road Development area to the Kampung Susuk intersection. Taking this location is intended to be more detailed and specific to see how the existence of USU becomes a central point for Ethnic Karo to adapt to follow development by mingling in the provision of student needs. The results showed that the motives that influenced the ethnic karo to survive were the land they owned as an inheritance and believed that the land had a living spirit (ertendi); strategic land with the existence of USU as the main attraction of their business. the motive influencing the ethnic karo to develop is to look at the short-term opportunities of their efforts to just survive, only see the opportunities available and only be able to provide the needs of students in accordance with the times. The conclusion from the iani research is that the Karo Ethnic survive in the area around the University of Sumatra because they have strong motives in themselves, how they maintain their assets. Karo ethnic develops because of the opportunities presented. A character that is found in the field of how ethnic karo who love to gamble with luck is implemented in the way they see business opportunities. USU as an opportunity was recognized as their way to reap profits and develop businesses.
Analisis Manajemen Pengelolaan Dana Desa di Desa Jungke Kecamatan Permata Kabupaten Bener Meriah
Authors: Jaya Irhas , Humaizi Humaizi , Achmad Nurman
Published: July 2020

This study aims to determine the Management of Village Fund Management in Jungke Village Permata District Bener Meriah Regency and the factors that influence it to achieve these objectives used qualitative research methods by breaking down the data descriptively. Data collection techniques were carried out by interview, document and archive observation using qualitative descriptive analysis techniques. The results of the study show: First the management stages of Village Fund Management in Jungke Village include Planning and Implementation of Reporting and Accountability Administration. Management of Village Fund Management is carried out by the Government of Jungke Village, Permata District, Bener Meriah Regency, and has followed the technical guidelines that have been regulated in the legislation. But in the process is still not optimal. This can be seen from the process of reporting and accountability that is experiencing delays. For the Reporting Process of Realizing the Use of Village Funds not in accordance with the predetermined schedule, causing delays in disbursing funds for the next stage. Likewise with the Responsibility for the use of village funds so that the community cannot evaluate the results of the work of the village government and the Accountability to the Regional Government which is not carried out in a timely manner. Second: Factors that influence the management of village funds include supporting and inhibiting factors. Supporting factors are community participation, facilities and infrastructure, while the inhibiting factors are human resources, technical guidelines for managing village funds that change every year and communication.