bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Faktor Keuangan dan Non Keuangan yang Mempengaruhi Prediksi Peringkat Obligasi (Studi empiris pada perusahaan penerbit obligasi yang terdaftar di Bursa Efek Indonesia periode 2012-2014)
Authors: Sakinah Putri , Paminto Ardi , Kadafi M. Amin
Published: February 2018

The purpose of this study is to examine the effect of liquidity as measured by Current Ratio (CR), Leverage is measured by Debt to Equity Ratio (DER), guarantee and age of bonds to bond rating listed on the Indonesia Stock Exchange. The research sample used is a bond issuer company listed on the Indonesia Stock Exchange (IDX) period of 2012 to 2014. Data collection research using purposive sampling method. Data obtained by 10 companies in the period 2012 to 2014. This study used logistic regression analysis to analyze the data. The result of this research is the liquidity proxied with Current Ratio (CR) has no significant effect on the rating of bond in Indonesia Stock Exchange. The leverage proxied by the Debt to Equity Ratio significantly influences the rating of bonds on the Indonesia Stock Exchange and the age of the bonds and the guarantee does not significantly affect the rating of bonds in the Indonesia Stock ExchangeKeywords: Bonds, bond ratings, liquidity, leverage, age of bonds, guarantees
Pengaruh Efektivitas Pelayanan terhadap Kepuasan Konsumen pada Pelabuhan Speedboat Kayan II Tanjung Selor
Authors: Wiryawan Dedik
Published: February 2018

This research is aim to analyze effectiveness of services influences to customer satisfaction in Kayan speedboat port II Tanjung Selor. The study will use 88 respondents who are users of services Kayan speedboat port II Tanjung Selor. Analysis tool use Ordinary Least Square. Result of research is effectiveness of services variabel was give significant influence to consumer satisfaction variabel in Kayan speedboat port II Tanjung Selor. Testing result was using t test to show thitung > ttabel (2.454 > 1.662). with test results can to knowing is research hypotesis which in explain research be accepted.Keywords: Effectiveness of service, consumer satisfaction
Analisis Metode Camel dan Pearls untuk Menilai Tingkat Kesehatan BPR di Kota Bontang
Authors: Prakoso Abdi Putra , Defung F.
Published: February 2018

This research aims at finding out the differences of health level of BPR in Bontang City by using CAMEL and PEARLS methods in the period of 2014-2015. The methods used in this research were CAMEL and PEARLS methods by determining the health level of a BPR which was classified based on the category of each assessment of the method. The research findings showed that the assessment of health level of BPR in Bontang City by using CAMEL and PEARLS methods had different ways of assessment. In CAMEL method, there was still a BPR which fell into a category which did not meet the standard of health assessment, namely BPR Dhanarta Dwiprima in the period of 2014 to 2015. The result of PEARLS assessment showed all of the BPRs in Bontang City in the period of 2014 to 2015 fell into a healthy category. This difference was caused by the calculation of the health level of BPR using PEARLS, which included indicators of growth ratio, which assessed that BPRs grew from one period to the subsequent period.Keywords: CAMEL, PEARLS, BPR, Health Level of BPR
Pengaruh Pengawasan Langsung dan Tidak Langsung terhadap Efektivitas Kerja Pegawai pada Dinas Pekerjaan Umum dan Pemukiman Prasarana Wilayah Kota Samarinda
Authors: Purwadi Purwadi
Published: February 2018

The purpose of this study is to determine the positive effects of direct supervision and indirect supervision and which variables that give dominant influence on the effectiveness of employees. Object in this research is all employee of Department of Public Works and Residential Infrastructure of City of Samarinda. The data were collected by questionnaire. The analysis tool used is multiple linear regression. The results of the study found that all of them were positive, meaning the estimation of the effect between direct supervision (X1) and indirect supervision (X2) together was unidirectional and there was a positive influence.Keywords: supervision, effectiveness of work, Samarinda
Analisis overreaction pada harga saham perusahaan manufaktur di bursa efek indonesia
Authors: Doddy Ignasius , Masyithoh Siti , Setiawati Ledy
Published: February 2018

Penelitian ini menguji hipotesis market overreaction (reaksi berlebihan pasar) perusahaan manufaktur di Bursa Efek Indonesia (BEI) dalam indeks LQ-45, tujuan utama penelitian ini adalah untuk menguji apakah pergerakan harga saham dapat diprediksi setelah terjadi peristiwa politik yaitu pemilihan Presiden pada tahun 2014 yang dapat memicu tumbuhnya overreaction dari investor terhadap suatu informasi dalam mengambil keputusan. Sampel yang digunakan dalam penelitian ini adalah data saham penutupan dalam perusahaan manufaktur yang tergabung dalam indeks LQ-45 yang terdaftar di Bursa Efek Indonesia (BEI) pada periode 2014-2015, Penelitian ini mengunakan sub-periode penelitian terdiri atas periode pembentukan portofolio (portofolio formation period) dan periode pengujian portofolio (portofolio subsequent-test period). Hasil penelitian menunjukan bahwa reaksi berlebihan (overreaction) tidak terjadi pada saham perusahaan manufaktur dalam indeks LQ-45 dapat dibuktikan dengan pola portofolio winner memiliki average cumulative actual return yang mengungguli average cumulative actual return portofolio loser. Terdapat perbedaan average cumulative actual return yang signifikan antara portofolio loser dan portofolio winner.
Lombricultivo en la Producción de Abono Orgánico para Fomento de Valores Ambientales
Authors: Ramírez Joyo Nancy del Carmen
Published: February 2018

Este estudio tiene como propósito fomentar valores ambientales para la producción de abono orgánico a partir de un lombricultivo en los estudiantes de la Escuela Técnica Agropecuaria Francisco Tamayo parroquia Barinitas, Municipio Bolívar estado Barinas. Este trabajo está orientado a aprovechar los desechos orgánicos contentivos en residuos sólidos orgánicos, debido a que se observa abundante acumulación de desechos sólidos orgánicos de origen (vegetal y animal) sin perspectiva de aprovechamiento. Es una investigación en desarrollo inmersa bajo el enfoque cualitativo basada en la metodología investigación acción participante. Se enmarca en la modalidad de campo de carácter descriptivo estructurado en cuatro fases reflexión; planificación; puesta en práctica del plan; reflexión y resultados. Los informantes claves para el estudio se tomaron dos estudiantes, un docente. Las técnicas de recolección fueron la observación participante y la entrevista estandarizada no programada, el instrumento el guion de entrevista y cuaderno de campo y las técnicas de análisis de la información la categorización y triangulación, Entre las consideraciones preliminares se espera consolidar la sostenibilidad a través de la elaboración de abono orgánico con lombricultivo como alternativa de cambio en las formas de producción para sensibilizar a los estudiantes y  alcanzar su propio desarrollo mejorando la cultura ambiental.
Profil Kemampuan Spasial Siswa Menengah Pertama (SMP) dalam Menyelesaikan Masalah Geometri Dimensi Tiga Ditinjau dari Kemampuan Matematika
Authors: Febriana Evi
Published: February 2018

Studentsâ€™ difficulty within learn geomety is closely related to the spatial ability. Spatial ability is needed by students to support and solve mathematics problems, partcularly in geometry. This descriptive qualitative research aimed to describe the spatial ability of the students JHS in manipulating and rotating mentally the object and also the ability imagine the shape of object from the different perspective by giving test of geometry three dimensions. The research subjects were 3 students of JHS with different mathematical ability, namely higher level, average level, and lower level. The research subjects were given test of geometry three dimensions I and interviewed. Time triangulation was conducted to check the credibility of the data by giving test of geometry three dimensions II and interviewed again. Based on the results of analysis were found that the ability to  change mentally the shape of object into different shape and the ability to move mentally the position of object were possesed by all of the subjects However, the higher and average level ability have difficulty in representing the image of three dimensions into two dimensions at the plane. Differ from those two subjects, the subject with lower level ability was found has difficulty in visualizing the shape of object from the different perspective.
Pengembangan Model Pembelajaran Kalkulus Berbantuan Komputer melalui Program Maple di Program Studi Pendidikan Matematika
Authors: Parma Parma , Saparwadi Lalu
Published: February 2018

The purpose of this research is the renewal of learning methods into calculus courses with modules of computer-assisted learning through maple. The products produced in this study is in the form of teaching materials in the form of calculus course lab guide through maple. With the resulting product of this research will be useful theoretically and practically. Theoretically, it is expected to result in the learning principles that can improve the quality of learning calculus, so as to enrich the theory of the existing learning models. Type of research is the development. Learning products developed include: (1). Models and learning strategies; (2). The device in the form of learning, Syllabus, Unit Learning Event, Book Teaching Material Calculus computer-assisted, student worksheet; and (3) test the learning outcomes. Product trials involving calculus course lecturers, heads of university and student mathematics education courses Se-Lombok. The test results were analyzed using descriptive statistics.
Peranan Buah Semangka dalam Pembelajaran Volume Bola
Authors: Juwita Hariani , Putri Ratu Ilma Indra , Somakim Somakim
Published: February 2018

The objective of this study was to investigate the role of the context to enable the students to understand the concept of volume of a sphere in class VIII. The context of this research was using a watermelon as teaching aids by using PMRI approach. The method used in this study was design research; the stages were preleminary design, teaching experiment, and retrospective analysis. The results of this study indicated that the role of watermelon as teaching aids supported the students to develop their knowledge about the concept of volume of a sphere, and enhance their understanding about the material so that the learnin becomes more meaningful. In giving the volume of a sphere its better not to be taught the students by giving formula directly, however they were given the opportunity to understand the volume of a sphere with their own concept in real situation. The existence of such a situation, the student will be easier to learn the material volume of a sphere at a higher level.
Peningkatan Kemampuan Pemahaman Matematis Siswa Menggunakan Pembelajaran Matematika GASING (Gampang, ASyIk, dan menyenaNGkan)
Authors: Armianti Armianti , Wildan Dawuh Nuril , Robiansyah Robiansyah , Trissiana Oktarika , Prahmana Rully Charitas Indra
Published: February 2018

This research is motivated by the low student learning outcomes in the material triangle and parallelogram caused by a lack of understanding of students about the forms of flat wake triangle and parallelogram so when the teacher gives about the shape Flat figure that is different from that taught teachers, students find it difficult to do. Therefore the use of learning with math GASING (easy, fun, and enjoyable). The purpose of research is to know the size of the average N-gain in the ability of students mathematical understanding once taught using learning math GASING. This research was conducted in SDN RUMPAKSINANG with grade IV samples of 31 people in November 2015. The method used in this research is the type pre-experimental design with the design of one group pretest-posttest. The results showed from this research that there is an increased ability to learn the students' understanding after learning of Mathematics GASING. The increase was seen from the average N-gain of 0.3813 which is included in the medium category.
Pengembangan Soal Matematika Model PISA Konten Bilangan untuk Mengetahui Kemampuan Literasi Matematika Siswa
Authors: Putra Yudi Yunika , Zulkardi Zulkardi , Hartono Yusuf
Published: February 2018

The aims of the research are (1) to product content quantity PISA-like problems which validity and practicality, and (2) to know the potential effect of the content quantity mathematical PISA-like problems for mathematic literacy ability. The subjects of the research are student SMP AR-RAIHAN Bandar Lampung. The research method used is development research which consist of two stages, they are preliminary and prototyping. In the preliminary stage have been done analysis for research subject, curricula, analysis for content and manufacture of instruments. Meanwhile, in prototyping stage used formative evaluation which includes : self evaluation, one-to-one,expert review, small group, and field test. The data collection techniques used in the research were walk through (expert review stage) for knowing the validity of the content, construct, and language. Analysis one-to-one stage, small group stage, and quetionaire (small group stage)  for knowing the practicality; test results, quetionaire, and interview (field test stage) for knowing potential effect. Based on the data analysis of research, it can be concluded that:  1) this research produced 4 items of content quantity PISA like mathematical problems which are valid and practice.The problems declared valid based on comments about content, construct, and language by experts and  analysis in validity criteria; otherwise practical based on the student argumentation such as the problems can be understood by student and can be implementation properly; and 2) Of  content  quantity PISA like mathematical problems has potential effect on student. Based test result and questionnaire all based mathematical ability (KDM)  be used student for answer questions.
LKS Berbasis Model Eliciting Activities untuk Mengetahui Kemampuan Pemecahan Masalah Matematika di Kelas VIII
Authors: Wafiqoh Risnina , Darmawijoyo Darmawijoyo , Hartono Yusuf
Published: February 2018

This study aims to determine the characteristics of Model Eliciting Activities a valid and practical, and determine the potential effect on the student worksheet for problem solving ability eighth grade students. The study resulted several characteristics of model eliciting activities which are including: (1) LKS developed customized with steps and learning the principles of Model eliciting Activities; (2) improve the ability of students LKS Model eliciting Activities related aspects, namely self-assessment, documentation and construk models share abilities and re-usability; (3) Each settlement problems in LKS, guidance is given on the wane; (4) Guidance is given less and less able to develop students' problem-solving abilities; (5) LKS Model eliciting Activities related to indicators of achievement of mathematical problem solving ability. Student Worksheet categorized as having potential effects on math problem solving ability of students who have a grade point average mathematical problem solving ability of 68.5, so the mathematical problem solving abilities 8.1 grade students includes both categories.
Pengembangan Modul Materi Lingkaran Berbasis Discovery untuk Siswa SMP
Authors: Rizta Amrina , Siroj Rusdy A. , Novaliana Rani
Published: February 2018

This study aims to produce a module material circle based discovery learning method for junior high school students are valid and practical, as well as having a potential effect. The method used is research and development. Validity module known from the assessment expert on sheet validation stating that the modules developed had been valid, based on the content (content of the material is in conformity with the basic competencies and indicators of learning are formulated), constructs (module subject matter circle in accordance with the teaching methods of discovery), and language (already using the formula sentences communicative, simple, easy to understand, and in accordance with the EYD). Practicality seen from the test results small group. Results of field trial test was obtained 77.5% of the students scored above 75 with an average value of 78.35. Based on these results, the results of student learning using a module that has been developed is quite good.
Implementasi Model Problem Based Learning (PBL) dalam Meningkatkan Kemampuan Berpikir Kritis Mahasiswa melalui Lesson Study
Authors: Aziz Abdul , Ahyan Shahibul , Fauzi Lalu Muhammad
Published: February 2018

This study aims to describe the implementation of problem based learning model to improve critical thinking skills of students in the subjects of Mathematics of Economics V semester of the academic year 2015/2016. This type of research used in this study is the Classroom Action Research (CAR through Lesson Study activities which consists of three stages; plang, do and see. Data collection techniques used are tests, questionnaires, observation, field notes and documentation. The data analysis technique used is descriptive qualitative. The results showed that the classification of critical thinking skills of students in the first and second open class is quite good with a percentage of 67.33% and 68.56%. In the third and fourth open class, critical thinking abilities of students has increased with the percentage of 74.22% and 77.78% with the classification of critical thinking is good. Therefore, the critical thinking skills of students in the subject of Mathematics of Economics can be improved by using problem-based learning through lesson study.
Kertas Berpetak pada Pembelajaran Perbandingan Senilai
Authors: Rahmawati Rahmawati , Somakim Somakim , Susanti Ely
Published: February 2018

This study aims to generate trajectories of students in learning by using a comparison worth growing terraced paper of form informal toward formal shape. The method used in this research is the research design consisted of three stages, namely the preliminary, design experiments and retrospective analysis. In this study, a series of learning is designed and developed based on the notion of the learning process and approach PMRI. This research was conducted in SMP PGRI 1 Palembang by involving students in grade VII.2 totaling 30 students. This research produces Learning trajectory (LT), which includes three activities namely 1, activity starts from drawing two wake up the same but different size, measure each side at the wake and determine the corresponding sides to determine the ratio. Activity 2, the activity determines the relations between the two ratios to determine whether the two ratios is a comparison worth or not. Activity 3, resolve issues relating to the comparative worth of daily life-today. Results of the experiments showed that a series of learning activities that have been done to help improve students' understanding of learning valued comparison.
Pengaruh Pendekatan Pendidikan Matematika Realistik terhadap Kemampuan Komunikasi Matematis Siswa Kelas VII SMP
Authors: Yunisha Rizqa , Prahmana Rully Charitas Indra , Sukmawati Klara Iswara
Published: February 2018

This research is motivated by the low mathematical communicating skills of junior high school students. The aim of this study is to know the differences in average score of mathematical communicating skills between the students once learnt using realistic mathematics education approach and students learnt using conventional approach. This research used a quasi-experimental method with non-equivalent control group design. The population used were all 7th grade students in SMP Negeri 2 Pagedangan, with two classes used as samples. This research datas are obtained from studentsâ€™ scores in pretest and posttest. Based on the analysis of the research results, it is concluded that there are differences in the average score of matematical communicating skills between the students once learnt using realistic mathematics eduacation approach and conventional approach. The average score of mathematical communicating skills of the students learnt using realistic mathematics education approach is higher than the students learnt using conventional approach.
Smart Environment Program, Smart Way to Smart City
Authors: Rachmawati Tutik , Pertiwi Priska Diah
Published: February 2018

Bandung City Government is ranked the 3rd in smart city index in Indonesia only within 8 months of smart city application. Considering this achievement, it is necessary to study this fast-tracking success of smart city to enable a lesson learnt for other local governments. Hence, this research aims at evaluating the best practices of smart environment program as one of smart city projects and analyzing the positive transformation being brought. The analysis will be based on three core activities in smart environment: (1) the creation of thematic parks as open public spaces; (2) the restoration and the revitalization of rivers and its river banks; (3) urban gardening or urban farming. Combined with the result of extensive of literature review, this research will apply eight (8) aspects of smart environment. These aspects are (1) The Provision of Public Open Space; (2) Good Waste Management; (3) Slum Areas Management; (4) The Revitalization of River; (5) Eliminate “Chopsticks Syndrome” in Building Construction; (6) Alternative energy; (7) Reducing the Production of CO2; (8) Urban Farming.

A qualitative research method were used in this research. The analysis of this research is a comparative analysis, with the use of smart city best practices in other cities in other countries as the benchmark. Seven local government work units/departments/agencies of Bandung Citywhich play important role as the leading sectors of the smart environment program were the key resources of this research. The data were collected from 30 interviews. This research gave its reader a new perspective in understanding the concept and the practices of smart city in the public administration perspective.
Tweeting in Disaster Area: An Analysis of Tweets during 2016 Mayor Floods in Indonesia
Authors: Santoso Anang Dwi
Published: February 2018

Social media allows people in the disaster area to communicate disaster information, to the people outside the disaster area, more quickly and accurately. Unfortunately, there are limited researches that examine the use of Twitter by people in the disaster sites. This study aims to explore the use of Twitter by users in the disaster-affected areas. We use the feature of twitter geolocation, to separate information from inside and outside the disaster site. This research gives depiction about communication behavior of people in the affected disaster area, through social media. The result showed that people in disaster location use twitter to give first-hand report, coordinate rescue effort, provide help and express grief. In addition, by focusing on the affected area, Twitter used by lay people is usually found rather than other users. From the segment of time, the researcher finds a number of tweets that will increase each day. Users will share more information the days after rather, than the day of disaster. In practical term, this research explores the used of social media by the victims of disaster, which can encourage effective communication to people or group outside the location; theoretically, this research gives more detail understanding about shared information from the people in the disaster place.
Efforts to Overcome Child Commercial Sexual Exploitation Victims in City Tourism Area, Manado
Authors: Hidayat Rahmat , Rusli Budiman , Sintaningrum Sintaningrum , Sugandi Yogi Suprayogi
Published: February 2018

The tourism sector has a significant contribution to the economy of Manado City, North Sulawesi Province. However, on the other hand, it has a negative effect on the increase in the number of child commercial sexual exploitation victims and makes children into commercial sex workers. Despite not effective, the Local Government of Manado City, North Sulawesi Province, has made efforts to cope with the child commercial sexual exploitation victims. In connection with the case, this study is designed to analyze the causes of ineffectiveness of Local Government efforts in tackling child commercial sexual exploitation victims. The study was conducted in tourism area of Manado City, North Sulawesi Province. The informants involved in this study were divided into two types: experts and non-experts. The informants were determined by using Opportunistic Sampling, and the sampling is using Snowball Sampling. The results of the study showed that the development of tourism sector has negative effect on children in the communities. Efforts made to cope with child commercial sexual exploitation victims by the local government and relevant parties have not been effective due to limited allocation of budgets and skilled, quality human resources, the lack of harmonious understanding between police with judges and public prosecutors as law apparatus, supervision, and protection of victims in solving the cases of child commercial sexual exploitation victims, the implementation of action committee’s duties and responsibility have been not effect, the number of obstacles facing them.
Pengaruh Variasi Jumlah Tembakan Nanosecond Pulsed Electric Fields (Nspefs) Terhadap Ekspresi Gen Socs3 pada Sel Kanker Serviks Hela S3
Authors: Rohmah Martina Kurnia
Published: February 2018

AbstrakNanosecond Pulsed Electric Fields (NsPEFs) merupakan teknologi bioelektrik yang berkembang dari teknologi elektroporasi. NsPEFs diberikan dengan intensitas tinggi namun dalam waktu yang sangat singkat yaitu 1 - 300 nanosekon. NsPEFs terbukti memiliki sejumlah efek biologis dan telah banyak dikembangkan dalam berbagai terapi salah satunya pada terapi kanker. Pada kanker serviks, protein HPV dapat menekan sejumlah ekspresi supresor tumor salah satunya yaitu gen Socs3. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan jumlah tembakan NsPEFs pada ekspresi gen Socs3. Sel HeLa S3 dikultur pada medium α-MEM dengan serum FBS 10%. Sebesar 20 kV/cm dalam durasi 80 ns NsPEFs dipapar pada suspensi sel dalam 4 mm cuvette. Gelombang NsPEFs dideteksi oleh probe bervoltase tinggi pada Oscilloscope. NsPEFs diberikan pada 0, 5, 10, 20, 30, 40, 0, dan 60 kali tembakan. Analisis ekspresi gen dilakukan dengan dua metode yaitu kuantitatif menggunakan Real time PCR dan kualitatif dengan RT-PCR. Data kuantitatif dianalisis secara statistik menggunakan Kolmogorf-Smirnov, Anova dan HSD Tukey (p<0.05). Hasil studi ini membuktikan bahwa paparan NsPEFs berpengaruh secara signifikan pada ekspresi gen Socs3 (p=0.000). Jumlah tembakan optimal 20 dan 30 kali dapat meningkatkan ekspresi gen Socs3 berturut-turut sebanyak = 2.779 dan = 3.105 kali. Ekspresi gen Socs3 akan menurun pada tembakan di atas 30 tembakan. Kata Kunci: NsPEFs, tembakan, ekspresi, Socs3 AbstractNanosecond Pulsed Electric Fields (NsPEFs) is bioelectric that was developed by electroporation technology. NsPEFs use high intensity in short time exposure (1 – 300 nanosecond). NsPEFs have biological effect and was developed in cancer therapy. In cervical cancer, viral protein of HPV depresses some tumor suppressors like Socs3 gene. This research aims to investigate the effect of short variation in Socs3 gene expression. HeLa S3 cells were cultured in α-MEM with FBS 10%. NsPEFs as much as 20 kV/cm and 80 nano seconds was exposure over HeLa S3 cell in 4 mm cuvette. Wave of NsPEFs was detected by high voltage probe in oscilloscope. NsPEFs was exposure at 0 (control), 5, 10, 20, 30, 40, 50, and 60 shots. Socs3 gene expression was analyzed using real time PCR and RT-PCR. Quantitative data was analyzed by Kolmogorov-Smirnov, Anova, and HSD Tuker (p<0.05). This research show that NsPEFs is significantly increase Socs3 gene expression (p=0.000). The optimal shot 20 and 30 shots increase Socs3 gene expression subsequently = 2.779 and = 3.105 times. This expression decrease in higher than 30 shots of NsPEFs exposure. Keywords: NsPEFs, shot, expression, Socs3
Assessment of Depression and Health-Related Quality of Life in Veterinary Medical Students: Use of the 2-Item Primary Care Evaluation of Mental Disorders Questionnaire (PRIME-MD PHQ) and the 8-Item Short Form-8 Survey (SF-8)
Authors: Chigerwe Munashe , Boudreaux Karen A. , Ilkiw Jan E.
Published: February 2018

Depression and health-related quality of life (HRQOL) are major concerns affecting veterinary students' well-being. Shorter versions of instruments to assess depression and HRQOL are timesaving and preferable. To the authors' knowledge there are no studies available that assess HRQOL in veterinary students. The objectives of this study were to screen veterinary students for depression during two semesters using a 2-item Primary Care Evaluation of Mental Disorders Procedure Health Questionnaire (PRIME-MD PHQ), and to assess HRQOL over two semesters using the Optum Short Form-8 (SF-8) Health Survey. A cohort of 273 students from two classes were invited to complete the PRIME-MD PHQ and the SF-8 survey during the fall semester of their first year, and again in the spring semester of the second year. Descriptive statistics, factor analysis, multiple regression, and logistic regression were used to perform data analysis. The proportion of students with symptoms of depression was high, ranging from 37.4% to 56.8% between the two classes. The SF-8 survey indicated a mental component summary (MCS) score of <50, indicating poor mental health for both classes, whereas the physical component summary (PCS) was >50, suggesting good physical health. Female students (p =.043) had low MCS scores compared to males. Students from both classes had lower MCS scores in spring compared to fall (p =.019). The PRIME-MD PHQ and the SF-8 were acceptable instruments for assessing depression and HRQOL in veterinary students, respectively.
Bedside optical coherence tomography for Terson’s syndrome screening in acute subarachnoid hemorrhage: a pilot study
Authors: Ramos-Estebanez Ciro , Kohen Maryo , Pace Jonathan , Bozorgi Alireza , Manjila Sunil , Alambyan Vilakshan , Nwankwo Ifeyinwa , DeGeorgia Michael , Bambakidis Nicholas C. , Orge Faruk
Published: February 2018

OBJECTIVE

Approximately 10% of patients with subarachnoid hemorrhage (SAH) become permanently, legally blind. The average cost of lifetime support and unpaid taxes for each blind person amounts to approximately $900,000. This study evaluates the feasibility and potential role of bedside optical coherence tomography (OCT) in Terson’s syndrome (TS) in patients with acute SAH (aSAH) and its potential role in blindness prevention.

METHODS

The authors conducted an open-label pilot study, in which 31 patients with an angiographic diagnosis of aSAH were first screened for TS with dilated funduscopy and then with OCT in the acute phase and at 6-week follow-up visits. Outpatient mood assessments (Patient Health Questionnaire–depression module, Hamilton Depression Scale), and quality of life general (NIH Patient-Reported Outcomes Measurement Information System) and visual scales (25-item National Eye Institute Visual Functioning Questionnaire) were measured at 1 and 6 weeks after discharge. Exclusion criteria included current or previous history of severe cataracts, severe diabetic retinopathy, severe macular degeneration, or glaucoma.

RESULTS

OCT identified 7 patients with TS, i.e., a 22.6% incidence in our aSAH sample: 7 in the acute phase, including a large retinal detachment that was initially missed by funduscopy and diagnosed by OCT in follow-up clinic. Dilated retinal funduscopy significantly failed to detect TS in 4 (57.1%) of these 7 cases. Intraventricular hemorrhage was significantly more common in TS cases (85.7% vs 25%). None of the participants experienced any complications from OCT examinations. Neither decreased quality of life visual scale scores nor a depressed mood correlated with objective OCT pathological findings at the 6-week follow-up after discharge. There were no significant mood differences between TS cases and controls.

CONCLUSIONS

OCT is the gold standard in retinal disease diagnosis. This pilot study shows that bedside OCT examination is feasible in aSAH. In this series, OCT was a safe procedure that enhanced TS detection by decreasing false-negative/inconclusive funduscopic examinations. It allows early diagnosis of macular holes and severe retinal detachments, which require acute surgical therapy to prevent legal blindness. In addition, OCT aids in ruling out potential false-positive visual deficits in individuals with a depressed mood at follow-up.
Distal peroneal nerve decompression after sciatic nerve injury secondary to total hip arthroplasty
Authors: Wilson Thomas J. , Kleiber Grant M. , Nunley Ryan M. , Mackinnon Susan E. , Spinner Robert J.
Published: February 2018

OBJECTIVE

The sciatic nerve, particularly its peroneal division, is at risk for injury during total hip arthroplasty (THA), especially when a posterior approach is used. The majority of the morbidity results from the loss of peroneal nerve–innervated muscle function. Approximately one-third of patients recover spontaneously. The objectives of this study were to report the outcomes of distal decompression of the peroneal nerve at the fibular tunnel following sciatic nerve injury secondary to THA and to attempt to identify predictors of a positive surgical outcome.

METHODS

A retrospective study of all patients who underwent peroneal decompression for the indication of sciatic nerve injury following THA at the Mayo Clinic or Washington University School of Medicine in St. Louis was performed. Patients with less than 6 months of postoperative follow-up were excluded. The primary outcome was dorsiflexion strength at latest follow-up. Univariate and multivariate logistic regression analyses were performed to assess the ability of the independent variables to predict a good surgical outcome.

RESULTS

The total included cohort consisted of 37 patients. The median preoperative dorsiflexion grade at the time of peroneal decompression was 0. Dorsiflexion at latest follow-up was Medical Research Council (MRC) ≥ 3 for 24 (65%) patients. Dorsiflexion recovered to MRC ≥ 4− for 15 (41%) patients. In multivariate logistic regression analysis, motor unit potentials in the tibialis anterior (OR 19.84, 95% CI 2.44–364.05; p = 0.004) and in the peroneus longus (OR 8.68, 95% CI 1.05–135.53; p = 0.04) on preoperative electromyography were significant predictors of a good surgical outcome.

CONCLUSIONS

After performing peroneal nerve decompression at the fibular tunnel, 65% of the patients in this study recovered dorsiflexion strength of MRC ≥ 3 at latest follow-up, potentially representing a significant improvement over the natural history.
The University as a 'Giant Newsroom': The Uses of Academic Knowledge Revisited
Authors: Rowe David
Published: February 2018

Almost a decade ago I published an article (with Dr Kylie Brass) based on Australian Research Council-funded research1 about criticisms in the media and public sphere of ‘ivory tower’ academe, and how, under pressures of ‘relevance’, ‘accountability’, and ‘brand identity’, academic knowledge was being progressively and institutionally encouraged to engage with everyday media discourse. In this and other articles on universities and public communication policies, we explored the ways in which the products of university-based academic labour were being increasingly placed in the service of wider public discourse, with some perils both for that knowledge and those who generate it. In the ensuing years, these pressures have intensified in tandem with the marketization of higher education and the often-remarked hegemony of neoliberal managerialism. The decline of the mainstream press (certainly in paper form) and the rise of user-generated, social and mobile media have produced a more intimate and volatile relationship between universities and the media/public sphere. In addressing the subject of publishing and mediatization, it is timely to re-assess the uses and trajectories of academic knowledge, the technologies that convey it, and the implications for its producers.
Publishing and Mediatization – A podcast from a Workshop in Norrköping June 2017 [With a written introduction by James Meese]
Authors: Meese James , Lind Andreas , Hall Gary , Arvanitakis James
Published: February 2018

No abstract available
On not Being There
Authors: Dahlin Johanna
Published: February 2018

This paper is an expression of the social anthropologist’s frustration with not being there, and an attempt to deal with my own chronic disciplinary identity crisis and my “it’s complicated” relationship with participant observation.
Queer times and Chemical Weapons, Suspended in the Gotland Deep
Authors: Neimanis Astrida
Published: February 2018

The video is also available at https://vimeo.com/220422987.
Trajectory Tracking of an Omni-Directional Wheeled Mobile Robot Using a Model Predictive Control Strategy
Authors: Wang Chengcheng , Liu Xiaofeng , Yang Xianqiang , Hu Fang , Jiang Aimin , Yang Chenguang
Published: February 2018

This paper addresses trajectory tracking of an omni-directional mobile robot (OMR) with three mecanum wheels and a fully symmetrical configuration. The omni-directional wheeled robot outperforms the non-holonomic wheeled robot due to its ability to rotate and translate independently and simultaneously. A kinematics model of the OMR is established and a model predictive control (MPC) algorithm with control and system constraints is designed to achieve point stabilization and trajectory tracking. Simulation results validate the accuracy of the established kinematics model and the effectiveness of the proposed MPC controller.
The Role of Photodynamic Therapy in the Treatment of Vulvar Intraepithelial Neoplasia
Authors: Tosti Giulio , Iacobone Anna , Preti Eleonora , Vaccari Sabina , Barisani Alessia , Pennacchioli Elisabetta , Cantisani Carmen
Published: February 2018

Background: vulvar intraepithelial neoplasia is a non-invasive precursor lesion found in 50–70% of patients affected by vulvar squamous cell carcinoma. In the past, radical surgery was the standard treatment for vulvar intraepithelial neoplasia, however, considering the psychological and physical morbidities related to extensive surgery, several less aggressive treatment modalities have been proposed since the late 1970s. Photodynamic therapy is an effective and safe treatment for cutaneous non-melanoma skin cancer, with favorable cosmetic outcomes. Methods: in the present paper, the results of selected studies on photodynamic therapy in the treatment of vulvar intraepithelial neoplasia are reported and discussed. Results: Overall, complete histological response rates ranged between 20% and 67% and symptom response rates ranged between 52% and 89% according to different studies and case series. Conclusions: the real benefit of photodynamic therapy in the setting of vulvar intraepithelial neoplasia lies in its ability to treat multi-focal disease with minimal tissue destruction, preservation of vulvar anatomy and excellent cosmetic outcomes. These properties explain why photodynamic therapy is an attractive option for vulvar intraepithelial neoplasia treatment.
Visualizing the Provenance of Personal Data Using Comics
Authors: Schreiber Andreas , Struminksi Regina
Published: February 2018

Personal health data is acquired, processed, stored, and accessed using a variety of different devices, applications, and services. These are often complex and highly connected. Therefore, use or misuse of the data is hard to detect for people, if they are not capable to understand the trace (i.e., the provenance) of that data. We present a visualization technique for personal health data provenance using comic strips. Each strip of the comic represents a certain activity, such as entering data using a smartphone application, storing or retrieving data on a cloud service, or generating a diagram from the data. The comic strips are generated automatically using recorded provenance graphs. The easy-to-understand comics enable all people to notice crucial points regarding their data such as, for example, privacy violations.
Layered Superconductors
Authors: Mizuguchi Yoshikazu
Published: February 2018

Since the discovery of cuprates (Cu-oxide superconductors) in 1986 [1–4], layered superconductors have attracted much attention, due to the emergence of high-transition-temperature (high-Tc) and unconventional superconductivity.
Mutual Information and Information Gating in Synfire Chains
Authors: Xiao Zhuocheng , Wang Binxu , Sornborger Andrew , Tao Louis
Published: February 2018

Coherent neuronal activity is believed to underlie the transfer and processing of information in the brain. Coherent activity in the form of synchronous firing and oscillations has been measured in many brain regions and has been correlated with enhanced feature processing and other sensory and cognitive functions. In the theoretical context, synfire chains and the transfer of transient activity packets in feedforward networks have been appealed to in order to describe coherent spiking and information transfer. Recently, it has been demonstrated that the classical synfire chain architecture, with the addition of suitably timed gating currents, can support the graded transfer of mean firing rates in feedforward networks (called synfire-gated synfire chains—SGSCs). Here we study information propagation in SGSCs by examining mutual information as a function of layer number in a feedforward network. We explore the effects of gating and noise on information transfer in synfire chains and demonstrate that asymptotically, two main regions exist in parameter space where information may be propagated and its propagation is controlled by pulse-gating: a large region where binary codes may be propagated, and a smaller region near a cusp in parameter space that supports graded propagation across many layers.
Why Bohmian Mechanics? One- and Two-Time Position Measurements, Bell Inequalities, Philosophy, and Physics
Authors: Gisin Nicolas
Published: February 2018

In Bohmian mechanics, particles follow continuous trajectories, so two-time position correlations have been well defined. However, Bohmian mechanics predicts the violation of Bell inequalities. Motivated by this fact, we investigate position measurements in Bohmian mechanics by coupling the particles to macroscopic pointers. This explains the violation of Bell inequalities despite two-time position correlations. We relate this fact to so-called surrealistic trajectories that, in our model, correspond to slowly moving pointers. Next, we emphasize that Bohmian mechanics, which does not distinguish between microscopic and macroscopic systems, implies that the quantum weirdness of quantum physics also shows up at the macro-scale. Finally, we discuss the fact that Bohmian mechanics is attractive to philosophers but not so much to physicists and argue that the Bohmian community is responsible for the latter.
Adaptive Protection System for Microgrids Based on a Robust Optimization Strategy
Authors: Núñez-Mata Oscar , Palma-Behnke Rodrigo , Valencia Felipe , Mendoza-Araya Patricio , Jiménez-Estévez Guillermo
Published: February 2018

The development of a proper protection system is essential for the secure and reliable operation of microgrids. In this paper, a novel adaptive protection system for microgrids is presented. The protection scheme is based on a protective device that includes two directional elements which are operating in an interleaved manner, namely overcurrent and undervoltage elements. The proposed protection scheme can be implemented in microprocessor-based relays. To define the settings of the protective device, a robust programming approach was proposed considering a finite set of fault scenarios. The scenarios are generated based on the predictions about the available energy and the demand. For each decision step, a robust optimization problem is solved online, which is based on forecasting with a confidence band to represent the uncertainty. The system is tested and compared using real data sets from an existing microgrid in northern Chile. To assess the performance of the proposed protection system, fault scenarios not considered in the optimization were taken into account. The results obtained show that the proposed protective device is able to manage those failure scenarios, as well as those included in the tuning of the settings. Practical considerations are also discussed.
An Investigation of Parallel Post-Laminar Flow through Coarse Granular Porous Media with the Wilkins Equation
Authors: Banerjee Ashes , Pasupuleti Srinivas , Singh Mritunjay , Kumar G.N.
Published: February 2018

Behaviour of flow resistance with velocity is still undefined for post-laminar flow through coarse granular media. This can cause considerable errors during flow measurements in situations like rock fill dams, water filters, pumping wells, oil and gas exploration, and so on. Keeping the non-deviating nature of Wilkins coefficients with the hydraulic radius of media in mind, the present study further explores their behaviour to independently varying media size and porosity, subjected to parallel post-laminar flow through granular media. Furthermore, an attempt is made to simulate the post-laminar flow conditions with the help of a Computational Fluid Dynamic (CFD) Model in ANSYS FLUENT, since conducting large-scale experiments are often costly and time-consuming. The model output and the experimental results are found to be in good agreement. Percentage deviations between the experimental and numerical results are found to be in the considerable range. Furthermore, the simulation results are statistically validated with the experimental results using the standard ‘Z-test’. The output from the model advocates the importance and applicability of CFD modelling in understanding post-laminar flow through granular media.
Influence of Conductive and Semi-Conductive Nanoparticles on the Dielectric Response of Natural Ester-Based Nanofluid Insulation
Authors: Makmud M. , Illias H. , Chee C. , Sarjadi M.
Published: February 2018

Nowadays, studies of alternative liquid insulation in high voltage apparatus have become increasingly important due to higher concerns regarding safety, sustainable resources and environmentally friendly issues. To fulfil this demand, natural ester has been extensively studied and it can become a potential product to replace mineral oil in power transformers. In addition, the incorporation of nanoparticles has been remarkable in producing improved characteristics of insulating oil. Although much extensive research has been carried out, there is no general agreement on the influence on the dielectric response of base oil due to the addition of different amounts and conductivity types of nanoparticle concentrations. Therefore, in this work, a natural ester-based nanofluid was prepared by a two-step method using iron oxide (Fe2O3) and titanium dioxide (TiO2) as the conductive and semi-conductive nanoparticles, respectively. The concentration amount of each nanoparticle types was varied at 0.01, 0.1 and 1.0 g/L. The nanofluid samples were characterised by visual inspection, morphology and the dynamic light scattering (DLS) method before the dielectric response measurement was carried out for frequency-dependent spectroscopy (FDS), current-voltage (I-V), and dielectric breakdown (BD) strength. The results show that the dielectric spectra and I-V curves of nanofluid-based iron oxide increases with the increase of iron oxide nanoparticle loading, while for titanium dioxide, it exhibits a decreasing response. The dielectric BD strength is enhanced for both types of nanoparticles at 0.01 g/L concentration. However, the increasing amount of nanoparticles at 0.1 and 1.0 g/L led to a contrary dielectric BD response. Thus, the results indicate that the augmentation of conductive nanoparticles in the suspension can lead to overlapping mechanisms. Consequently, this reduces the BD strength compared to pristine materials during electron injection in high electric fields.