bluuebunny/crossref_metadata_2025 huggingface dataset:
Multinomial Logistic Regression Model to Identify the Factors Associated with Academic Performance of Hearing Impaired Students of Some Selected Districts of Nepal
Authors: Rijal Tara Devi , Shrestha Gauri
Published: October 2019

Background: Education for hearing impaired (HI) students is always challenging for schools, teachers, parents and even for students themselves. For their education, government has established special schools and included them in mainstream school with hearing peers also called integrated school. Although all these efforts for their education, their academic performance is affected by different factors.

Objective: This study is focused to assess factors which affects the academic performance of HI students of Jhapa, Morang and Sunsari districts.

Materials and Methods: This study is a cross-sectional study and based on primary data collected through structured questionnaire. Academic Performance is categorized as Below Average, Average and Good. A sample of 238 HI students from eleven schools of three districts were selected using two stage stratified random sampling methods. Sixty teachers were also chosen for assessing some variables. Data were analyzed using descriptive and inferential statistical methods. To determine the significant factors influencing the academic performance of HI students, Multinomial Logistic Regression (MNLR) model was used.

Results: From the fitted MNLR model, variables like attendance [Odds Ratio (OR) =0.951], type of school (OR=27.39), level of study (OR=4.551), additional handicapping condition (OR=5.202), communication capacity of students (OR=9.477) and instructional material (OR=3.028) are found to be significant in the model Below Average versus Average level of academic performance of HI students. Similarly, the variables like type of school (OR=7.875 and 9.572), level of study (OR= 0.556), purpose of parents' visit (OR= 0.410) and instructional material (OR= 0.304) are found to be significant in the model Good versus Average level of Academic performance of HI students.

Conclusion: The results of the study illustrates that several factors are associated with academic performance of HI students. Concerned authorities are suggested to provide suitable infrastructure, HI students friendly curriculum, special training to teacher and awareness to family, society and hearing peers to improve the academic performance of HI students.
Study of Factors Affecting the Entrepreneurship Behavior of Returned Migrants Using Binary Logistic Regression Model
Authors: Bhusal Madhav Kumar , Pandey Hari Prasad
Published: October 2019

Background: Entrepreneurship or business ownership is a significant source of employment and economic growth. Many studies conducted by different researchers have shown that increase in entrepreneurial activities helps to reduce unemployment. Thousands of Nepalese youths exodus for foreign migration every year for employments due to lack of adequate working environment in Nepal. In this context, identification of significant factors influencing the entrepreneurship behavior of returned migrants could be useful for planner, decision makers, and other concerned authorities.

Objective: To explore the entrepreneurship status of returned migrants and to ascertain the factors influencing the entrepreneurship behavior of returned migrants.

Materials and Methods: This study was based on primary data of 393 returned migrants collected through convenience sampling in Sarawal Rural Municipality of Parasi district, Nepal. People who stayed abroad at least one year and returned during 2010 to 2017 were included in the study. On the basis of Industrial Enterprise Act, 2016a, Nepal, a person who has invested Nepalese rupees five lakh or more in business besides housing and land is considered as an entrepreneur. The response variable is entrepreneurship status and it is defined according to the aforementioned act. Both quantitative and categorical variables were used as predictor variables. Factors associated with entrepreneurship behavior were extracted using Chi-square test and binary logistic regression model.

Results: Out of sample of 393 returned migrants, 137 (34.9%) were entrepreneur and rest 256 (65.1%) were non-entrepreneur. Results showed that for main occupation of household head odds ratio (OR) = 4.008 & confidence interval (CI) = 2.396 to 6.703. Similarly, for educational status of returned migrants OR = 2.650 & CI = 1.599 to 4.392. For the covariate skills learnt at abroad OR = 2.750 & CI = 1.654 to 4.573.

Conclusion: The study revealed that majority of returned migrants were non-entrepreneur. The factors ‘main occupation of household head’, ‘educational status of returned migrant’, ‘remittance received at home per year’ and ‘skills learnt abroad’ are the major determinants behind the entrepreneurship behavior of returned migrants. It is suggested that higher education and adequate skills should be taken before departing from home country so that the migrants can earn more money which will help to start their own businesses once they get back to their home country.
Kualitas Pelayanan Pemasangan Listrik Prabayar Pada PT. PLN (Persero) Area Pelayanan Banyumanik Semarang
Authors: Setyorini Dini
Published: October 2019

Abstract – It cannot be denied that at present the public service is a concern of the public. Ordinary public service come from agencies that serve the community for the needs of every community. This study aims to determine quality of service for prepaid electricity installation at PT. PLN (Persero) Banyumanik Semarang service area. Analysis of the data used is a score interpretation (IS) obtained from respondents. Respondents numbered 80 people using purposive sampling. While to complete this research, the author also uses secondary data obtained from various existing sources. Based on the results of the research conducted it can be concluded that the dimensions that show service quality include tangibles ( direct evidence), reliability, responsiveness, assurance and emphaty show a strong interpretation where customers feel satisfied with the quality service of PT. PLN (Persero) Banyumanik Semarang service area.Key words : quality, service, satisfaction
Analisis Pelaksanaan Pencatatan Petty Cash (Kas Kecil) Pada PT MNI Entertainment Jakarta Pusat
Authors: Karlina Eulin , Ariandi Fajri , Humaeroh Siti Dedeh , Martiwi Rini
Published: October 2019

Each company must have a cash section formed, and the cash portion will be assisted by a petty cash section signed by the petty cash implementation officer and related functions to assist operational performance directly. transactions that occur are not very complicated, but must carry out management properly and thoroughly based on the operating procedures of the existing company. For this reason, the author tries to make a final assignment regarding the recording of petty cash at PT MNI Entertainment, Central Jakarta. The method used in this study is to use a qualitative descriptive method with data collection techniques through observation, interviews and documentation. The registration of petty cash at PT MNI Entertainment Central Jakarta is by using the imperst method, which in this method the determination of the amount of petty cash funds is always fixed in the period. In the implementation of the Petty Cash there are implementation procedures and several records that are applied to carry out operational activities such as the establishment of a petty cash fund, and refill petty cash funds.
Pengaruh Bauran Pemasaran Jasa dan Citra Merek terhadap Reputasi Penyelenggara Jasa Pendidikan
Authors: Warpindyastuti Lady Diana
Published: October 2019

Marketing strategy is needed in any business, no exception in the business of education. But for marketing public schools and school image is needed to shape the reputation of the school so that parents are interested in sending their children to the state school. Madrasah Ibtidaiyah Negeri 18 Jakarta also attaches importance to the Service Marketing Mix and Brand Image to build its reputation. So the purpose of this research is to find out how big the influence of Service Marketing Mix and Brand Image both separately (partial) and jointly (simultaneously) on the Reputation of Educational Service Providers in Madrasah Ibtidaiyah Negeri 18 Jakarta. This study uses a quantitative method with a questionnaire of 83 samples from 480 parents of students at Madrasah Ibtidaiyah Negeri 18 Jakarta. Then, the regression equation formula is determined after the validity test, reliability test, normality test, multicollinearity test, heterokedastisitas, and correlation test on each questionnaire results and scores for both the dependent variable and the independent variable. The results showed that the Marketing Mix of Services and Brand Image both separately and together significantly affected the Reputation of Providers of Educational Services in Jakarta 18 Madrasah Ibtidaiyah with 99% accuracy.
Implementasi Penerapan Motivasi Kerja dan Kinerja Karyawan Terhadap Peningkatan Produktifitas Kerja
Authors: Oktiani Nurvi , Sabariah Etika , Saridawati Saridawati , Caroline Priska
Published: October 2019

Peningkatan produktifitas kerja merupakan salah satu tujuan yang sangat penting bagi organisasi   dengan adanya peningkatan produktifitas akan memberikan keuntungan bagi organisasi, produktivitas kerja dapat diupayakan dengan pengelolaan organisasi dengan mampu mengadopsi secara positif dari proses penilaian kinerja yang meliputi teknik motivasi untuk meningkatkan moralitas karyawan, metode yang digunakan dalam penelitian ini adalah dengan Desain penelitian dilakukan secara kuantitatif dengan teknik pengambilan sampling non probability sampling, melalui sampling purposive, Teknik analisis Regresi Linear berganda, adapun dalam penelitian ini dilakukan pengujian asumsi klasik yang terdiri dari uji reliabilitas, uji validitas, uji Normalitas, Uji Multikolinearitas, uji heteroskedasitas, Uji Autokorelasi, uji regresi partial dan uji regresi linear, jumlah sample dalam penelitian ini berjumlah 80 orang yang merupakan karyawan  dari hasil penelitian diperoleh bahwa terdapat hubungan dan pengaruh antara motivasi kerja dan kinerja karyawan terhadap produktifitas kerja, dari hasil penelitian juga dinyatakan bahwa variabel motivasi kerja merupakan faktor yang dominan dan signifikan dalam menentukan produktifitas kerja., oleh sebab itu perusahaan dapat melakukan pengelolaan pemberian kompensasi, memperhatikan lingkungan kerja, kebebasan dalam memberikan Ide- ide dan gagasan baru,  kebebasan dalam  memberikan kritik dan saran, membangun atau meningkatkan serta kamampuan dan keahlian, peningkatan Prestasi Kerja karyawan dengan memberikan peluang atau jalan karir (path way) , mendidik kemandirian karyawan, serta memberikan kebebasan bagi karyawan untuk lebih berinovasi dan memberikan gagasan baru agar dapat meningkatkan produktifitas kerja
Rancang Bangun Sistem Informasi Akademik Berbasis Web pada Madrasah Aliyah Attaqwa Tangerang
Authors: Yani Ahmad , Syauki Ahmad , Marlina Siti
Published: October 2019

Madrasah Aliyah Attaqwa Tangerang adalah salah satu lembaga pendidikan yang sedang berkembang di kawasan Tangerang. Perkembangan lembaga pendidikan Attaqwa ini akan sangat terbantu dengan pemanfaatan teknologi informasi. Penulis ingin berkontribusi kepada lembaga pendidikan Attaqwa ini dengan merancang Sistem Informasi Akademik  berbasis web agar dapat membantu kelancaran proses kegiatan belajar mengajar. Sistem Informasi Akademik yang penulis rancangan ini menggunakan metode pengembangan sistem waterfall mulai dari tahap analisis, desain, implementasi, testing dan pemeliharaan sistem. Sistem Informasi Akademik ini akan mengelola data siswa, guru, nilai dan informasi sekolah yang akan disampaikan kepada masyarakat luar dengan lebih efektif dan memiliki ruang lingkup yang lebih luas dalam proses penyaluran informasi. Dengan adanya Sistem Informasi Akademik berbasis Web akan sangat membantu lembaga pendidikan Attaqwa dengan memberdayakan secara optimal fasilitas internet yang telah ada untuk mempermudah pengolahan data dalam pelaksanaan kegiatan operasional lembaga juga menjadikan website sebagai salah satu sarana yang efektif dan efesien dalam hal mengenalkan  atau mempromosikan lembaga pendidikan Madrasah Attaqwa Tangerang kepada masyarakat.
Penerapan Algoritma K-Means Clustering pada Karakter Permainan Multiplayer Online Battle Arena
Authors: Mustofa Mustofa
Published: October 2019

Salah satu teknologi di bidang hiburan yang berkembang dengan cepat dan begitu populer di masyarakt adalah video game. Bahkan Esport (kompetisi video game) yang semakin menerima pengakuan industri sebagai hiburan olahraga. Dalam pembahasan esport pasti akan muncul pembahasan tentang faktor-faktor yang mempengaruhi peluang untuk menang. Berbagai studi trlah melakukan penelitian mengenai hal ini. Akan tetapi belum ada yang membahas pengelompokan karakter berdasarakan karakteristik yang dimiliki tanpa melihat role play default dari developer sebagai panduan untuk memilih hero alternatif agar komposisi role play dalam pemainan tetap terjaga namun karakter yang digunakan tetap sesuai dengan keinginan player. Untuk itulah penelitian ini menyusun pengklasteran terhadap hero pada video game Vainglory menggunakan algoritma k-means. Dari hasil penelitian yang dilakukan didapatkan tiga klaster karater hero yang meiliki karakteristik yang dekat. Klaster pertama terdiri dari hero dengan regenerasi HP yang cepat dengan karateristi serangan jarak dekat. Klaster kedua memiliki karakter hero dengan HP yang tinggi dan pertahanan yang mumpuni denga damage yang tinggi. Klaster ketiga mengumpulkan karakter hero dengan HP dan pertahanan rendah namun memiliki keunggulan dari jangauan serangan yang luas.
Enhancing Learning Process using Double-Loop Theory in Purchasing Process of Healthcare Organization Toward Cutting Unnecessary Costs.
Authors: Mohmoud Tiyib M , Khair Zulkifli , Othman Muhammed F. Bin
Published: October 2019

The reports show that America is currently paying around 17.9% of the national annual budget on expenses of health care services with expecting to be raised of up to 19.6% in 2021, same with other developed and developing countries. This makes alarming and pushes our look again of the way of management of the operations of health care systems, especially when the increased costs are also accompanied by not satisfied or poor health care results. The topic of this paper addresses an understudied and essential element that can improve the learning process by using Double-Loop Learning Theory (by Argyris & Schon) in Purchasing process of the healthcare organizations, which will be added value to reduce the unnecessary costs especially that most of the public healthcare organizations are subject to shrinkage in their annual budget. This paper looks to the Essential cornerstone of learning in the process of decision making, and will examine how efficient and practical will be the strategies of behavior in this specialty involve share of organization power with any staff who has the skills and capabilities, and with any member of the organization who is competent in to be involved in decision making process or action implementation, in any defined task, or taking control of the environment within the organization.
Learning and Facilitation (PdPc) Islamic Education in Industrial Revolution 4.0
Authors: Ajmain @ Jima’ain Muhammad Talhah , Hehsan Aminudin , Mohamad Ahmad Marzuki
Published: October 2019

A challenge that usually occurred in the education system nowadays is to adapt to learning and facilitating(PdPc) for facing the upcoming industrial revolution 4.0. Industrial Revolution 4.0 give big impacts to teachers to develop a group of students that have high skills, critical thinking, and emotional wellbeing. Islamic education teachers need to take action based on industrial revolution 4.0, creative and innovative using any media and sources to produce interesting (PdPc).This writing for discussing PdPc of  Islamic Education that relevant to the concept of industrial revolution 4.0 by adapting Learning Skills of 21st Century, authentic learning, soft skills, and Critical Thinking Skills(HOTS).It also discusses of challenge that teachers faced in running the Islamic Education learning towards industrial revolution 4.0.
Incorporating Tarsia to Foster Student Collaboration in the Mathematics Classroom
Authors: Ching Hao Chua , Binti Mohd Kosnin Azlina
Published: October 2019

It is evident that we will be able to retain and apply more knowledge into practice if we have spent more time in reviewing and practicing. Active student practice and consistent review are the key components of mastery learning. However, in Mathematics teaching, some of the commonly used instructional approaches such as “Practice on the blackboard” and “Assignment of homework” contradict the above mentioned key elements of content mastery. In view of this, our study aims to examine the effectiveness of an interactive activity, Tarsia. Tarsia allows students to elicit the characteristics of fun and playfulness while ensuring enough practices are obtained. Our results have shown that students view Tarsia as an interesting activity which enables them to develop new knowledge as well as promoting collaborative skills among the team members. Collaboration, is one of the four 21st century skills proposed by National Education Association (NEA) as the important skills to possess in order to succeed in the constantly changing 21st century.
Meningkatkan Hasil Belajar Siswa Dengan Penerapan Model Pembelajaran Problem Based Instruction Dan Make A Match Pada Materi Pokok Teorema Phytagoras
Authors: Nurdalilah Nurdalilah , Harahap Adek Nilasari , Rhamayanti Yuni
Published: October 2019

The study aims to determine the increase in student learning outcomes. This type of research is class action research (PTK) using a learning model of Problem Based Instruction and Make a Match.  In Cycle I show the average class earned at 63.8. The results of the final cycle II data analysis with the same learning is obtained by the average grade of 80.4. Based on the classical learning criteria, this learning has reached the target of learning. It can be concluded that through the learning model of Problem Based Instruction and Make a Match, there is an increase in student learning outcomes VIIII SMP Negeri 8 Padangsidimpuan increased. Keywords: Learning Outcomes, Learning Model Problem Based Instruction, Make a Match
Peningkatan Kemampuan Pemecahan Masalah Fisika Siswa Menggunakan Metode Praktikum Di Kelas X MAN Sipirok
Authors: Elisa Elisa , Mardiyah Ainun , Rambe Aslamiyah
Published: October 2019

his study aims to improve the ability to solve physics problems and student learning outcomes in the materials of Straight Motion Kinematics with the initial ability to use ordinary practicum methods and practicum methods with different procedures. This research is a Classroom Action Research (CAR) with two cycles. The subject of this research is class X MIA 2 MAN Sipirok, each class totaling 30 students. Class X MIA 2 uses practicum procedures commonly used in schools. The treatment instruments used were syllabus and lesson plans, and for the test instrument used five questions for problem-solving skills and ten questions for student learning outcomes. The results obtained are the ability to solve physics problems in class XI MIA 2. After learning with practicum methods, the ability to solve problems and student learning outcomes increase. This is indicated by (1) Learning outcomes using the demonstration method have increased from cycle I students who did not pass 70% and passed 30%, in cycle II students who did not pass 25% and passed 75%. This happens because the demonstration method used in the first cycle is the usual demonstration method and in the second cycle uses a demonstration method with different procedures. (2) Aspect of problem-solving according to the indicator of problem-solving has increased namely identifying aspects in the first cycle of 43.52% and the second cycle to 72.53%, aspects of implementing the strategy in the first cycle 56.42% and in the second cycle to 77.63 %, aspects of formulating Physics problems in the first cycle 33.90% and in the second cycle to 76.72%, aspects of interpreting Physics problems in the first cycle 53.52% and in the second cycle to 86.15%. Keywords: Problem-solving ability, Classroom Action Research, MAN Sipirok
Editorial
Authors: Ward Michael R. M.
Published: October 2019

It is with real pleasure that I introduce this issue of Boyhood Studies: An Interdisciplinary Journal (BHS), my first full issue as Editor. The past few months have been a learning curve in terms of the roles and responsibilities expected when editing an international journal, but I am very pleased with what we have to offer here. At a very important and critical time for gender scholars, I want to use this editorial as a general announcement of the editorial change, or addition, in editorship and the future direction, I would like to take the journal in. It is also an opportunity to introduce editorial board members, old and new to the readership and to outline what follows in volume 12, issue 1.
Times of Democracy
Authors: Nørgaard Anne Engelst
Published: October 2019

Democracy became a popular and highly contested concept in the Danish-speaking parts of the Danish monarchy in 1848. For a brief time, it went from being an occasional guest in political language to a popular concept in the constitutional struggle of 1848–1849. This article argues democracy became attached to an equally popular concept of the time, movement, when introduced into everyday political communication in Denmark. In this context, democracy became a name for the movement observed in Europe and in the Danish monarchy. The article identifies three main interpretations of democracy that occurred in the Danish constitutional struggle of 1848–1849 and argues the battle over the constitution was essentially a battle over how one interpreted the past, the present, and the future. Democracy became a key term in this battle in 1848 Denmark.
Modernity, Ḥadāthā, and Modernité in the Works of Abdallah Laroui
Authors: Riecken Nils
Published: October 2019

The puzzle this article examines is how one can study the concept of modernity within the history of its universalization as a process of translation. For this purpose, I look at how the contemporary Moroccan historian and intellectual Abdallah Laroui has critically engaged with the history, politics, and epistemology of translating modernity (Arabic ḥadāthā, French modernité) into his intellectual and political setting of Morocco, North Africa, and the Middle East during and after the colonial period. I read him as making a critical intervention into existing modes of timing and spacing the concept of modernity and, thus, what I describe as the politics of historicity. In conclusion, I make a methodological plea for framing the history of concepts across political borders in terms of translational practices.
Editorial
Authors: Loughrey Bryan , Holderness Graham
Published: October 2019

In this issue, Critical Survey continues to represent international scholarship and research, and to broaden the horizons of scholarship. Featuring authors from Britain, the United States, Australia, Jordan, the Sultanate of Oman and the Republic of Ireland, the issue ranges from early modern to contemporary literature and culture, from Shakespeare to the literature and drama of contemporary Ireland.
A Hybrid New World... or Not?
Authors: Essadek Fatima
Published: October 2019

During the last three decades, early modern scholarship has drawn heavily on twentieth-century theorisation to analyse the socio-cultural conditions in the sixteenth and seventeenth centuries. An example of such scholarly endeavours is the attempt to appropriate the concept of hybridity to explain the constitution of cultural identity. This article re-evaluates this critical trend by reviewing the model of hybridity in relation to early modern cultures; it simultaneously proposes the existence of another cultural pattern that is here labelled ‘cultural transformation’. The article also contends that hybridisation is more manifest in the domain of material culture: the ethno-cultural characteristics of early modern communities made them more receptive towards accepting and integrating material objects but less welcoming towards assimilating beliefs, values or cultural practices from other nations.
'Archive Man'
Authors: Robertson Elizabeth
Published: October 2019

The writer-director Stephen Poliakoff’s thematic concerns with history and memory have repeatedly returned to the archive as a site of discovery. Poliakoff’s use, and exploration, of archives in his work has coincided with a marked rise in mainstream cultural engagement with archives for personal use, as well as an archival turn in literary scholarship. This article explores the different types of archive and archival material found in Poliakoff’s dramas for stage and screen, mapping the topography of public and private archives in his work, in turn revealing the commentaries these dramas are making about how we create and use archives, and who and what they are for.
Polyphonic Narrative Spaces in Hala Alyan's Salt Houses
Authors: Aladylah Majed
Published: October 2019

It is important to stress that Arab women writers have produced a new kaleidoscope of narrative fiction in English. They focus on a variety of representations with respect to identity, dislocation, cultural hybridity and belonging. Moreover they have tried to construct a stable subjectivity and a space of belonging. These narratives are now dispersed and relocated by Arab women diasporic novelists such as Hala Alyan. This article will examine Hala Alyan’s 2017 novel, Salt Houses. This debut novel has amalgamated different narrative experimentations and techniques, and how polyphonic spaces have dislocated the conventional act of narration and relocated it in tandem with the non-homogeneity of the Arab world itself.
Dark Night of the Early Modern Soul
Authors: Burson Jeffrey D.
Published: October 2019

During the sixteenth century, Jesuit renovations of medieval Aristotelian conceptions of the soul afforded an important discursive field for René Descartes to craft a notion of the soul as a substance distinct from the body and defined by thought. Cartesianism, however, augmented rather than diminished the skeptical crisis over the soul and the mind–body union. This article explores the work of a Jesuit intellectual, René-Joseph Tournemine, whose attempt to navigate between Malebranche’s Cartesianism and the metaphysics of Leibniz proved influential during the eighteenth century in ways that intersect with the development of Enlightenment biological science. Tournemine’s theologically motivated conjectures about the nature of the mind–body union reinforced an important shift away from considering the soul as a metaphysical substance in favor of seeing it as a pervasive motive force or vital principle animating the human organism.
Distance Education in Brazil
Authors: Lopes Érika Maria Chioca , Pereira Lúcia Resende , Bertone Ana Maria Amarillo
Published: October 2019

A mathematical modeling project was proposed for a student of a Distance Education in a Mathematics Degree course, which involved the use of solids of revolution. In this paper, we present and analyze the teaching-learning process for the development of modeling in this experience, based on the communication established between student and teacher. In order to facilitate student’s self-learning, the GeoGebra software was chosen as an aid tool in computational implementation. In the teaching proposal, the student was asked to identify a building that had the shape of a figure of revolution and the Cathedral of Brasilia, located in the city of Brasilia, Brazil, was chosen, after verifying the feasibility for completion of this model in the GeoGebra environment. The analysis of the dialogues between student and researcher shows that the interaction was based on Prado and Valente's approach of “being virtually together” and that the process of the mathematical modeling took place in gradual steps, helping to meet the mathematical and coding needs. We conclude that GeoGebra proved to be a powerful software program, which improves the visualization of the rotation motion of the desired solid generating curve and facilitated the necessary adjustments in the parameters of the algebraic expression of the curve. Thus, this experience shows that it is possible for the teacher to work the solids of revolution from a real situation, which mobilized the student for meaningful learning.
Evaluation of the changes in physicochemical and antioxidant properties of honey during storage
Authors: Zarei Mehdi , Fazlara Ali , Alijani Nasim
Published: October 2019

Background Despite having a lot of information about the physicochemical and antioxidant properties of honeys from different geographical regions, there is only limited information about the changes in these characteristics during long-term storage of honey. Hence, this study was conducted to evaluate these changes in five different types of honey, including alfalfa, milkvetch, lotus, thyme, and multifloral honeys, during one year of storage at room temperature.MethodsSamples were analyzed for pH, free acidity, Ash, moisture, electrical conductivity, hydroxymethylfurfural, color, total phenolic content, DPPH radical-scavenging activity and ferric reducing antioxidant power.ResultsChanges were more or less observed in all the physicochemical characteristics of honeys during the storage period. However, these changes did not exceed the maximum acceptable limits and after one-year of storage, the physicochemical properties of all types of honeys were within the standard limits except for HMF content in multifloral honey (43.89 mg/kg). Regarding the antioxidant capacity of honeys, our results showed 38.92-73.3 % decrease in DPPH radical scavenging activities and 43.29-67.0 % decrease in FRAP values of different types of honeys during  the storage period.ConclusionFrom the nutritional point of view, decrease in the antioxidant capacity of honeys is of particular importance. Therefore, these levels of reduction in antioxidant capacity could certainly affect the nutritional and health benefits of honey.
Ubiquitin Specific Protease 13 Regulates Tau Accumulation and Clearance in Models of Alzheimer’s Disease1
Authors: Liu Xiaoguang , Hebron Michaeline L. , Mulki Sanjana , Wang Chen , Lekah Elizabeth , Ferrante Dalila , Shi Wangke , Kurd-Misto Bahjat , Moussa Charbel
Published: October 2019

Ubiquitin Specific Protease-13 (USP13) is a de-ubiquinating enzyme that regulates protein ubiquitination and clearance. The role of USP13 is largely unknown in neurodegeneration. In this study we aim to demonstrate whether tau accumulation and/or clearance depends on ubiquitination/de-ubiquitination via USP-13. We used transgenic animal models of human amyloid precursor protein (APP) or P301L tau mutations and genetically knocked-down USP13 expression via shRNA to determine USP13 effects on tau ubiquitination and levels. We found a two-fold increase of USP13 levels in postmortem Alzheimer’s disease (AD) brains. USP13 knockdown significantly increased the activity of the 20S proteasome and reduced the levels of hyper-phosphorylated tau (p-tau) in primary cortical neurons. USP13 knockdown also reduced the levels of amyloid and increased p-tau ubiquitination and clearance in transgenic animal models that overexpress murine tau as a result of the expression of familial APP mutations (TgAPP) and the human mutant P301L tau (rTg4510), respectively. Clearance of p-tau appears to be mediated by autophagy in these animal models. Taken together, these data suggest that USP13 knockdown reduces p-tau accumulation via regulation of ubiquitination/de-ubiquitination and mediates its clearance via autophagy and/or the proteasome. These results suggest that USP13 inhibition may be a therapeutic strategy to reduce accumulation of plaques and toxic p-tau in AD and human tauopathies.
Does a gluten-free diet increase body mass index and lipid profile in celiac patients? A systematic review and meta-analysis
Authors: Nikniaz Zeinab , Farhangi Mahdieh Abbasalizad , Hosseinifard Hossein , Nikniaz Leila
Published: October 2019

INTRODUCTION:

Considering that a gluten-free diet (GFD) should be followed for life, investigating its effect on health is very important. In the present study, we systematically reviewed and meta-analyzed the studies that evaluated the changes in body mass index (BMI) and lipid profile during a gluten-free diet (GFD) in celiac patients.

METHOD:

The databases of Pubmed, Embase, Scopus, Web of Science and Cochrane Library were searched until June 2018 to select studies investigate the changes in BMI and lipid profile in celiac patients. The standard mean difference (SMD) was calculated. For the heterogeneity analysis, the I-square statistic test was used.

RESULTS:

Twenty-one articles were included in our systematic review and 16 studies were selected for meta-analysis. The results of meta-analysis showed the statistically significant increase in BMI [SMD: 0.26; 95% CI: 0.17, 0.35 p: <0.001] and HDL-C (HDL-C) [SMD: 0.36; 95% CI: 0.009, 0.18, p = 0.001] during GFD. However, the effect of GFD on total cholesterol [SMD: 0.17; 95% CI:–0.66, 0.41, p = 0.16], LDL-C [SMD: –0.21; 95% CI:–0.54, 0.10, p = 0.16], and triglyceride [SMD: 0.02; 95% CI:–0.22, 0.25, p = 0.87] was not statistically significant.

CONCLUSION:

The results of the present meta-analysis showed the positive effect of GFD on BMI and HDL-C. However, more cohort studies in this topic are needed with considering the level of mucosal healing and the effect of confounding factors such as physical activity level, smoking and dietary intakes on the association between GFD diet and cardiovascular risk factors.
Apresentação
Authors: Lyra Edgar , Oliveira Marcela
Published: October 2019

Apresentação à O que nos faz pensar 44.
Darcy Ribeiro, o brasileiro [Entrevista de Darcy Ribeiro à Folha de São Paulo em 1995]
Authors: Gonçalves Marcos Augusto Machado
Published: October 2019

Entrevista publicada em 5 de fevereiro de 1995 no caderno Mais! da Folha de São Paulo. Agradecemos à Folha e ao Marcos Augusto Gonçalves a gentileza por autorizarem a inclusão da entrevista nesta edição da revista O que nos faz pensar. Em deferência ao original, mantivemos a ortografia vigente à época.
Histopathological characteristics and post-operative follow-up of patients with potentially radiogenic papillary thyroid carcinoma depending on oncocytic changes availability in the tumor cells
Authors: Bogdanova T. , Zurnadzhy L. , Masiuk S. , Burko S. , Degtyaryova T. , Kovalenko A. , Bolgov M. , Chernyshov S. , Gulevatyi S. , Thomas G. , Tronko M.
Published: October 2019

Summary. Aim: To compare the frequency of main histopathological characteristics, 131І thyroid radiation doses, invasive properties and post-operative follow-up of patients of different age groups with potentially radiogenic papillary thyroid carcinoma (PTC) with the presence and absence of oncocytic changes in tumor cells. Materials and Methods: PTC removed in 483 patients from high risk age-group for radiogenic thyroid cancer development (children and adolescents at the time of Chornobyl accident who lived in the northern regions of Ukraine: Kyiv, Zhytomyr, and Chernihiv regions) have been studied microscopically. Results: The frequency of PTC with the presence of oncocytic changes (OCh) in tumor cells increased significantly with increasing of patients’ age at the time of surgery: from 8.3% in children 4–14 years old to 54.3% in adults 39–48 years old (ptrend < 0.0001). The presence of such changes is associated with papillary and solid-trabecular dominant tumor growth pattern in more than 90% of cases in each age group. The mean 131І thyroid dose in the whole series of PTC patients with OCh was significantly lower compared to the same index in PTC patients without OCh (493.7 mGy and 765.8 mGy, respectively, p < 0.0001). In addition, regional metastases recurrences were revealed more frequently in patients with OCh in primary PTC compared with patients without OCh in primary tumor (7.2% vs 1.5%, p = 0.0022). Conclusions: Significantly increasing age-trend of OCh in PTC of patients affected by the Chornobyl fallout and operated at age from 4 to 48 years, as well as opposite decreasing linear age-trend of 131І thyroid dose may reflect a gradual increase of sporadic PTCs frequency in the potentially radiogenic series with time elapsed since accident. The frequency of oncocytic insensitive to radioiodine therapy of lymph node metastases recurrences also increased with patients age and OCh availability in primary PTC.
Adsorptive therapy as a modificator for tumor-host interaction
Authors: Sakhno L.A. , Sarnatskaya V.V. , Yushko L.A. , Snezhkova E.A. , Bardakhivskaya K.I. , Shevchuk O.O. , Sidorenko A.S. , Nikolaev V.G.
Published: October 2019

Summary. The potential of one of the adsorption methods, enterosorption (ES), using the new generation of carbon adsorbents to correct the negative manifestations of tumor-host interaction in the framework of paraneoplastic syndrome (PNS) as well as systemic toxicity of chemo- and radiation therapy, is discussed. The ES influence on the development of PNS was demonstrated in C57/BL6 mice with transplanted Lewis lung carcinoma. Two-week administration of carbon enterosorbents resulted in a significant suppression of metastasis and correction of tumor-related anemia, activation of granulocytic line in the bone marrow with nearly 3-fold enhancement of its mitotic activity. ES exerted a positive influence on the structural-morphologic indexes and regenerative potential of kidneys and liver, mitigated manifestations of oxidative stress, decreased the level of endogenous intoxication, increased resistance of erythrocyte membranes and decreased ligand loading of blood plasma transport proteins. The effect of ES on anticancer activity and toxic reactions of cisplatin (CP) was evaluated in Guerin carcinoma-bearing rats. ES reduced significantly creatinine and other kidney biochemical indexes elevated in the blood plasma of rats after CP treatment. ES attenuated dystrophic changes in the histological structure of internal organs (kidney, liver, spleen), caused by tumor growth and significantly aggravated under the influence of CP. Such changes were specially traced in the kidneys and well reflect the nephroprotective potential of ES. In rats irradiated with X-ray in sublethal dose, highly activated granulated carbonic enterosorbents facilitated the restoration of white blood cells and lymphocyte count. The results obtained confirm the insights of academician R.E. Kavetsky predicting the future of adsorptive detoxification with activated carbons in the treatment of cancer patients.
Communication Analysis of Swadaya Rubber Farmers in Subdistrict XIII Koto Kampar, Kampar District
Authors: Rusdayani Fina , Yulida Roza , Sayamar Eri
Published: October 2019

This research aims to determine the internal characteristics and external characteristics of rubber farmers in self-help patterns and the communication process in Subdistrict XIII Koto Kampar, Kampar District.. Based on data on the area of ​​rubber plantations and the amount of rubber production in Riau Province has decreased in the last four years. This is caused by various factors, one of which is due to farmers' communication processes that are running poorly or not as expected. Therefore, it is necessary to analyze the internal and external characteristics of independent smallholder rubber farmers and the communication process through the elements of communication using survey methods, sample selection with purposive sampling method and Likert scale analysis tools and descriptive analysis. Based on Likert scale analysis, internal characteristics and external characteristics of rubber farmers in District XIII Koto Kampar, Kampar Regency are in the moderate category (quite good). The communication process in this study is seen from the elements of communication, namely communicators, messages, media, communicants, effects, feedback, place and time dimensions
ANALISA KERUSAKAN BEARING SUSPENTION PREHEATER FAN BERBASIS DATA TEMPERATUR DAN VIBRASI
Authors: Hartono Budi , Sutisna Setya Permana
Published: October 2019

Salah satu upaya mengurangi kerugian akibat berhentinya proses produksi clinker/cement secara mendadak akibat kerusakan alat adalah memonitor kondisi peralatan secara terus menerus. Suspention preheater fan adalah salah satu peralatan yang sangat vital pada proses pembuatan clinker dimana salah satu komponennya adalah bearing. Untuk memantau kondisi bearing selama beroperasi maka di pasang peralatan pemantau getaran dan temperatur yang digunakan untuk memantau amplitudo getaran dan temperatur bearing. Berdasarkan hasil pengamatan, amplitudo getaran bearing yang nilainya dibawah 4,5 mm/s dan temperatur dibawah 700 menunjukan kondisi bearing yang masih dalam batas aman untuk beroperai. Sedangkan nilai amplitudo getaran yang mencapai 8,7mm/s dan temperatur 1200C menunjukan kondisi bearing yang sudah tidak aman untuk beroperasi. pada kondisi ini di dapati bearing rusak dan harus diganti. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa ketika terjadi kerusakan pada bearing besar getaran pada mesin SP Fan melonjak hingga melebihi batas aman dan pada saat bersamaan juga terjadi lonjakan temperatur. Terdapat hubungan antara nilai getaran dan temperatur yang disebabkan oleh gesekan antar komponen dalam bearing
RANCANG BANGUN RANGKA MOBIL LISTRIK IBN KHALDUN SAKTI (IKSA)
Authors: Nugraha Gusti Chandra Agung , Hartono Budi , Yuliaji Dwi
Published: October 2019

 

Rangka adalah bagian terpenting dari sebuah mobil listrik karena pada bagian ini semua komponen dan penumpang diletakkan. Dalam penelitian ini dilakukan perhitungan tegangan normal, defleksi, dan factor keamanan sebagai tolak ukur kekuatan sebuah rangka mobil. Perhitungan tegangan pada bagian depan rangka adalah 2,32x107 N/m2, bagian tengah adalah 2,22x107 N/m2, dan bagian belakang adalah 3,69x107 N/m2. Nilai defleksi yang terjadi di bagian depan dari rangka adalah 1,67 mm, di bagian tengah adalah 2,21 mm, dan di bagian belakang adalah 1,80 mm. Faktor keamanan pada bagian depan rangka adalah 10,7, bagian tengah adalah 11,2, dan bagian belakang adalah 6,77. Hasil perhitungan serta pengujian rangka mobil listrik ini menunjukkan capaian sesuai standar.
RANCANG BANGUN PLANETARY GEAR PADA SISTEM ENERGY RECOVERY BERDASARKAN PUTARAN GAYA NORMAL SPRING
Authors: Anwar Muhammad , Yuliaji Dwi , Pramono Gatot Eka
Published: October 2019

Di dalam merancang kinetic energy recovery system (KERS) sangat erat hubungannya dengan perancangan roda gigi karena energi dari roda gigilah yang akan digunakan sebagai sumber KERS pada saat pengereman. Oleh karena itu, diperlukan dimensi roda gigi planetary gear dan torsi yang dihasilkan berdasarkan putaran spring. Perancangan roda planetary gear dan torsi yang dihasilkan berdasarkan rotasi gaya pegas normal. Dalam perancangan roda planetary gear, jumlah gigi sun gear adalah 27 gigi, 50 carrier gear, dan 128 ring gear. Angka toleransi pada roda gigi planetary gear ini masih pada batas toleransi sehingga roda gigi planetary gear aman untuk dioperasikan. Kemudian torsi yang dihasilkan berdasarkan putaran spring sebesar 21,63 Nm2. Gaya tangensial yang terjadi berdasarkan putaran spring pada roda gigi pada beban 2,100 kg sebesar 19,358 N, tegangan lentur pada roda gigi sebesar 0,520911 Mpa, dan tegangan kontak roda gigi sebesar 15,986 Mpa. Besarnya tegangan yang terjadi pada roda gigi ? dari yield strength sebesar 254 Mpa, maka roda gigi cukup aman.
ANALISIS KEGAGALAN SPRING WASHER MATERIAL SK-5 LAPISAN ELECTROPLATING ZINC
Authors: Tegar Muhammad , Sutoyo Edi
Published: October 2019

Spring washer merupakan salah satu komponen yang digunakan pada industri otomotif berfungsi sebagai sistem penggerak atau penahan pada suatu unit assembly. Spring washer juga dapat berfungsi sebagai pegas pada mekanisme beban berat. Spring washer  harus memiliki spesifikasi tinggi untuk menghindari kegagalan fungsi. Dalam penelitian ini dilakukan investigasi terhadap kegagalan fungsi (patah) spring washer setelah dilakukan assembly unit. Investigasi dilakukan untuk mengetahui penyebab terjadinya dan jenis patahan pada spring washer. Analisa dilakukan terhadap aktual proses manufaktur, serta beberapa pengujian diantaranya uji komposisi kimia material SK-5, uji kekerasan, SEM serta foto mikro. Hasil pengujian dan observasi jenis patahan termasuk jenis moderate ductile-brittle, penyebabnya adalah adanya inisial crack membentuk flow mark,  proses tempering rendah di temperatur 240°C, proses acid pickling tidak sempurna, tidak dilakukan proses baking out selama 4 jam pada temperatur 200°C, patahan terjadi setelah spring washer menerima beban sebesar 1928 N (192,8 kgf), patahan memiliki kekerasan 62-65 HRC serta distribusi kekerasan tidak merata 720-780 HV kedalaman 0,5 mm. Hasil SEM adanya pembentukan avoid menandakan 100% retakan intragranular dan foto mikro menunjukan adanya inisial tidak homogen yang terbentuk pada fase martensit pada perbesaran 100x. Dari hasil pengujian dan observasi dapat disimpulkan bahwa fenomena patahan pada spring washer terjadi karena hydrogen embrittlement yang terjebak di dalam lapisan electroplating zinc membentuk pitting corrosion sepanjang area flow mark sehingga terbentuk butiran retakan intragranular serta tidak tercapainya temperatur tempering di angka 550°C sehingga menimbulkan kerapuhan pada spring washer saat menerima beban berat.
How Does Financial Analysis Influence the Firm's Failure of Iraqi Private Sector?
Authors: Alhamdi Mohammed , Malik Al-Sayed Noor Ridha , Abdulla Mostafa , Alnoor Alhamzah , Eneizan Bilal
Published: October 2019

The objective of this study is to examine the failure of construction companies services by using Abbas and Rashid Model. This study comprised sample of 38 companies in construction companies services at Iraq. A Wilcoxon Test was used to compare between the Abbas and Rashid Model & Kida Model. Data were gathered from the construction companies services listed on the Iraq financial market for the period 2012-2015. This study results show that the Kida Model is the best model where it is most accurate in predicting the failure in the construction companies services in Iraq. The data for this study are collected from the construction companies that listed in the Iraqi financial market. Recommendations for future research are needed to conduct similar studies to compare the models for predicting company failure in other sectors such as the industrial sector.
Penggunaan Metode Balance Scorecard dalam Pengukuran Kinerja Perusahaan Daerah Air Minum (PDAM) Kota Probolinggo
Authors: Haidiputri Trivosa Aprilia Novadiani
Published: October 2019

The study was conducted to find out the results of the company's performance analysis using the Balance Scorecard (BSC) method. This type of research is quantitative descriptive, variables used are financial perspective, customer, business / internal, learning and growth perspective. Data used from 2015-2017. The results showed that the financial perspective was considered unfavourable because the value of ROE and ROA was still below the standard. From the customer's perspective, it is considered quite good because the customer acquisition value is good, and customer retention is quite good. From an internal business perspective, it is considered good because the MERR value is good. In the perspective of learning and growth is considered good because the value of employee retention, training and absenteeism is good. The results of performance measurement from the four perspectives of the Balance Scorecard are considered quite good.