bluuebunny/crossref_metadata_2025 huggingface dataset:
GEOPOLITIČNOST POLITIKOLOGIJE Mogućnosti geopolitike kao geopolitikologije
Authors: Knezevic Milos
Published: May 2020

Autor polazi od nesporne potrebe politikološkog tumačenja konfliktnih procesa koji ugrožavaju nastale, trajuće i zamišljene političke strukture. Životna realnost na dva načina upućuje na prostornost političkih pojava. Prvi je njihova očigledna prostorna, to jest teritorijalna utemeljenost i razgraničeni oblik, a drugi prostorna pozadina i uzročnost onoga što se predstavlja kao neprostorno, postprostorno, transprostorno, tj. virtuelno. Datosti prirode postojano utiču na politiku, iako se ponekad nedovoljno uvažavaju. Geografija nije samo deskriptivna nauka već i korpus znanja uzroka prirodnih i društvenih pojava. Fizička i socijalna geografija mogu pomoći političkoj nauci u boljem saznanju prostornih fenomena političkog života. Politikologija nije uvek naklonjena geopolitici jer je shvata kao neteorijski deo političkog iskustva, ili samo kao jedan od artefakata istorije političkih ideja. Politikologija u izvesnim slučajevima ispoljava odbojnost prema geopolitičkom rasuđivanju. U globalizacijskim tokovima i globalnom poretku lako se prepoznaju komponente geopolitike. Autor je na stanovištu da je globalizacija ujedno i geopolitizacija, kao što globalističke i antiglobalističke teorije sadrže premise teorijske geopolitike. Impulsi istraživanja svetske situacije uobličuju se u različite tipove naučnih i medijskih diksursa. Geopolitički diskurs je pobuđen susretom materijalnosti prostora i prividne nematerijalnosti politike. Odatle je za dublje razumevanje praktičnih pitanja i teorijskih nedoumica oko naučnog dodira geografije i politike, od značaja upravo fenomen geopolitike.
KATEGORI DAN LAYANAN E-COMMERCE TERHADAP DAYA BELI DI KALANGAN MAHASISWA
Authors: Komala Cucu , Sugilar Hamdan
Published: May 2020

The rapid development of e-commerce influences people's purchasing power, including students who are affected by services provided by e-commerce. The purpose of this article is to explain the categories of e-commerce and services that are presented to students' purchasing power at online stores. The method of this research is the method of correlation with the subjects of S1 and S2 students in one of the universities in Bandung, the research instruments are questionnaires, and secondary data in analyzing the response to services provided by e-commerce. The results of the study show that the purchasing power of students towards e-commerce is within the limits of the need not yet on the consumer aspect. However, the e-commerce service or platform provided changes the perspective of students from conventional shopping to online shopping. There is a correlation between service and purchasing power with a high correlation value of 0.985 and a positive influence between services or e-commerce platforms on student purchasing power at online stores.

 

Pesatnya perkembangan e-commerce mempengaruhi daya beli masyarakat tidak terkecuali mahasiswa yang terpengaruh dengan layanan yang diberikan e-commerce. Tujuan artikel ini adalah untuk menjelaskan kategori e-commerce dan layanan yang disajikan terhadap daya beli mahasiswa pada toko online. Metode penelitian ini adalah metode korelasi dengan subjek penelitian mahasiswa S1 dan S2 salah satu perguruan tinggi di Bandung, isntrumen penelitiannya angket, dan data sekunder dalam menganalisa respon terhadapa layanan yang diberikan oleh e-commerce. Hasil penelitian menunjukkan bahwa daya beli mahasiswa terhadap e-commerce dalam batas kebutuhan belum pada aspek konsumtif. Namun layanan atau platform e- commerce yang diberikan mengubah cara pandang mahasiswa dari belanja konvensional ke belanja online. Ada korelasi antara layanan terhadap daya beli dengan nilai korelasi tinggi sebesar 0,985 dan adanya pengaruh positif antara layanan atau platform e-commerce terhadap daya beli mahasiswa pada toko online.
Faktor yang Berhubungan dengan Keluhan Kelelahan Mata pada Pekerja Operator Komputer
Authors: Firdani Fea
Published: May 2020

Operators have some risks in getting visual fatigue because they always work in front of the monitor. The objective of this research was to know factors related to the grievance of visual fatigue in computer operator workers. The design of this research was quantitative by using cross-sectional in control room a cement industry in Padang on September 2014 till January 2015. The variables were age, eye-resting, working periods, deviation refraction toward grievance on visual fatigue. The sampling technique is total sampling with the amount of 40 respondents. Data were collected by questionnaire. Data were analyzed in univariate and bivariate with 95%CI(α=0,05). The result of analysis showed 67,5% (>mean=0,44) operators experienced visual fatigue, 52,5% are old (>40 years), 55% working periods >3 years, 82,5% are never eye-resting(≤10 minutes/hours), 52,5% have deviation refraction. Statistical test result visual fatigue relationship with age (p-value=0,025), working periods (p-value=0.263), eye-resting (p-value=0.393), deviation refraction (p-value=0,025). There was a meaningful relation between age and deviation refraction with the grievance of visual fatigue. We do hope Company must oblige the workers to do eye-checking, pay attention to the pattern of rest at work and on each monitor installed with anti-glare

Operator memiliki risiko mengalami keluhan kelelahan mata karena selalu bekerja di depan monitor. Penelitian ini dilakukan untuk mengetahui faktor-faktor yang berhubungan dengan keluhan kelelahan mata pada pekerja operator komputer. Desain penelitian ini adalah kuantitatif dengan pendekatan cross sectional. Penelitian dilakukan di ruang PT Semen Padang pada September 2014 hingga Januari 2015. Variabelnya adalah usia, istirahat mata, masa kerja, kelainan refraksi terhadap keluhan kelelahan mata. Teknik pengambilan sampel adalah total sampling dengan jumlah sampel 40 orang. Data dikumpulkan dengan kuesioner. Data dianalisis secara univariat dan bivariat dengan 95% CI (α = 0,05). Hasil analisis menunjukkan 67,5% operator mengalami kelelahan visual, 52,5% berusia tua (> 40 tahun), 55% masa kerja > 3 tahun, 82,5% tidak pernah mengistirahatkan mata (≤10 menit / jam), 52,5% mengalami kelainan refraksi. Hasil uji statistik hubungan kelelahan mata dengan usia (p-value = 0,025), masa kerja (p-value = 0,263), istirahat mata (p-value = 0,393), kelainan refraksi (p-value = 0,025). Terdapat hubungan yang bermakna antara usia dan kelainan refraksi dengan keluhan kelelahan mata. Diharapkan perusahaan mewajibkan para pekerja operator komputer melakukan pemeriksaan mata secara berkala, memperhatikan pola istirahat mata dan pada setiap monitor dipasang dengan anti-glare
Analisis Kualitatif Kandungan Formalin Pada Tahu di Pasar Jodoh Kota Batam
Authors: Fitriani Sammulia Suci , Poluan Tirsa , Friscia Yusri Yunisa
Published: May 2020

Tofu is a food made from fermented soybean seed precipitate. Storage knows when more than 1-2 days, tofu will be acidic and rotten. A relatively short shelf life that often added formalin preservatives to know can last up to seven days. Formalin is one harmful substance that is forbidden to use for food because it can cause health problems especially in the gastrointestinal tract and if accumulated in the body can be a carcinogen compound. The purpose of this research is to know the existence of formalin on the tofu sold in the Jodoh market Batam city. Sampling is performed in purposive sampling, taking 20 different tofu samples. The active test was done by solution solution A and B and the solution of the reagent Nash. The results of the Weaver show that out of 20 samples that have been tested negatively or do not contain formalin, so that it can be said that circulating in Batam City Jodoh market is safe For consumption.

Tahu merupakan makanan yang terbuat dari endapan perasan biji kedelai yang difermentasi. Penyimpanan tahu bila lebih dari 1-2 hari, tahu akan menjadi asam dan busuk. Daya simpan tahu yang relatif singkat sehingga sering ditambahkan bahan pengawet formalin agar tahu dapat bertahan sampai tujuh hari. Bahan pangan yang banyak mengandung kadar air dapat mudah busuk dan tidak tahan lama terhadap penyimpanan sehingga sangat rentan untuk ditambahakan zat kimia berbahaya seperti formalin. Formalin merupakan salah satu zat berbahaya yang dilarang penggunaanya untuk makanan karena dapat menyebabkan gangguan kesehatan khususnya pada saluran pencernaan dan jika terakumulasi dalam tubuh dapat menjadi senyawa karsinogen.Tujuan penelitian ini untuk mengetahui adanya formalin pada tahu yang di jual di Pasar Jodoh Kota Batam. Pengambilan sampel dilakukan secara purposive sampling, dengan mengambil 20 sampel tahu yang berrbeda. Penelitian ini dilakukan secara analisis deskriptif kualitatif dengan menggunakan larutan pereaksi formalin ( fehling A dan B dan Larutan pereaksi Nash) terhadap 20 sampel tahu yang diperoleh di Pasar Jodoh.Hasil penenlitian menunjukkan bahwa dari 20 sampel yang telah diuji negatif atau tidak mengandung formalin, sehingga dapat dikatakan tahu yang beredar di Pasar Jodoh Kota Batam aman untuk di konsumsi
THE INFLUENCE OF DRONES ON THE DEVELOPMENT OF ARCHITECHTURAL PHOTOGRAPHY CULTURAL WORKS
Authors: Yandri Yandri , Gani Maulid Hariri , Masta Putri Khairina , Syahdiza Eldiapma , Rahman Fadlul
Published: May 2020

Culture of architectural photography is a branch of photography that exposes the aesthetic value of an architectural object of a building. The presence of drone technology in the culture of photography recently brings changes to the results of the photography itself and one of them is in the area of architectural photography.  This study aims at verifying the influence of Unmanned Aerial Vehicle technology (Drone) on the artwork of architectural photography. The method used in this research was qualitative method with descriptive technique. Data were collected through library research and field research with observation and interview techniques. The culture using drones offer significant results in architectural photography artworks. The high flexibility of the drone gives results on a very detail architectural artwork. Using a drone also provides a very dazzling point of view that cannot be obtained by using only a DSLR camera. Furthermore by using drone, the artworks of photography are no longer limited by areas that cannot be reached. Therefore by using a drone, the photographer can make architectural photography works with unlimited perspective dimensions. There are some weaknesses of using this drone that the camera and lens are not adjustable and they also cannot be changed.
ENVIRONMENT PRESERVING CHARACTER ON WAYANG STORY DEWA RUCI: AN ECOLOGICAL LITERATURE STUDY
Authors: Setyawan Bagus Wahyu
Published: May 2020

Wayang is one of Javanese performing arts which has a greatfull values in Javanese society. Wayang has two dimensions; as a kind of Javanese performing art as well as Javanese literature in this context is script of wayang story. The focus of the research was to describe and explain the ecological concept on wayang story in Central Java and Yogyakarta Special Region. This research is qualitative descriptive which using ethnographic approach. Data were collected by using domain analysis techniques, taxonomic analysis, compositional analysis, and theme analysis. Data validation used extra participation technique, perseverance observation, triangulation, detailed discussion, and auditing. The research found that the ecological concept in wayang story can be found in some use term and the motto which relating to the term of environment conservation. Term about the environment preservation is found in the narration of the story, dialog of wayang characters, also find some mottos related to natural conservation effort. Referring to the results of this research, it can be assumed that the ecological concept in wayang story also functions as reminders of natural conservation and preservation for the society in Central Java and Yogyakarta Special Region.
Energy upper bound for structurally stableN-passive states
Authors: Salvia Raffaele , Giovannetti Vittorio
Published: May 2020

Passive states are special configurations of a quantum system which exhibit no energy decrement at the end of an arbitrary cyclic driving of the model Hamiltonian. When applied to an increasing number of copies of the initial density matrix, the requirement of passivity induces a hierarchical ordering which, in the asymptotic limit of infinitely many elements, pinpoints ground states and thermal Gibbs states. In particular, for large values ofNthe energy content of aN-passive state which is also structurally stable (i.e. capable to maintain its passivity status under small perturbations of the model Hamiltonian), is expected to be close to the corresponding value of the thermal Gibbs state which has the same entropy. In the present paper we provide a quantitative assessment of this fact, by producing an upper bound for the energy of an arbitraryN-passive, structurally stable state which only depends on the spectral properties of the Hamiltonian of the system. We also show the condition under which our inequality can be saturated. A generalization of the bound is finally presented that, for sufficiently largeN, applies to states which areN-passive, but not necessarily structurally stable.
La separación funcional de las actividades monopólicas del mercado eléctrico chileno: una tarea pendiente
Authors: Guzmán Zepeda Óscar Guillermo
Published: May 2020

El artículo busca explicar, a partir de la regulación económica, los riesgos que plantea la existencia de empresas verticalmente integradas en el sector eléctrico y la importancia de la separación de actividades. De esta forma, a partir de las diversas técnicas regulatorias que ofrecen, tanto la doctrina como los modelos comparados, particularmente de la Unión Europea y España, se recomienda avanzar en el sector eléctrico chileno hacia una separación funcional de actividades.
Prototipo de dispositivo de dispensación para usuarios crónicos: contribución a la mejora de la adherencia terapéutica
Authors: Mora Guzmán Javier Ariel , Osorio Bedoya Edwin Jair , Amariles Muñoz Pedro
Published: May 2020

El incumplimiento o la falta de adherencia al tratamiento farmacológico se asocian con problemas de efectividad y seguridad, lo que conlleva al aumento de los costos para el sistema de salud. El presente artículo presenta el diseño de un prototipo de sistema de dispensación para usuarios crónicos (SIDUC), el cual busca favorecer la adherencia al tratamiento farmacológico, y contribuir a la conservación de los medicamentos. Para la elaboración del SIDUC se tuvieron en cuenta algunas consideraciones a saber: sistema personalizado de dosificación, que sea favorable, que sea asequible, que permita la conservación de los medicamentos y que el diseño sea útil para pacientes con discapacidad visual, para lo cual debería suministrar información en sistema braille para el uso adecuado de los medicamentos. Teniendo en cuenta lo anterior, se elaboró un prototipo del dispositivo personalizado de dosificación, SIDUC, con el que se pretende favorecer la adherencia terapéutica, evitar confusión en la administración de los medicamentos y propiciar la conservación y estabilidad de los mismos, que se ajusta a las características deseadas para este tipo de productos, y requiere que se evalúe su utilidad en la mejora de la adherencia terapéutica.
Afrontamiento de cuidadores de niños con diagnóstico de cáncer atendidos en la red de salud del Distrito de Barranquilla
Authors: Reyes-Ruiz Lizeth , Carmona Alvarado Farid Alejandro , Varela Llanos Betty Cecilia , Mackenzie Vilar Steven
Published: May 2020

Este artículo presenta los modos de afrontamiento según Lázarus & Folkman(1984), de cuidadores de niños y niñas con diagnóstico de cáncer, atendidos en la Red de Salud del Distrito de Barranquilla, además de caracterizar el estrato socioeconómico, escolaridad, estado civil, parentesco y ocupación de los mismos. Se trata de un estudio con enfoque cuantitativo, de tipo descriptivo de corte exploratorio, cuya muestra estuvo constituida por 50 cuidadoras de niños y niñas con cáncer. Para la recolección de la información se utilizó la Escala de Afrontamiento de Lázarus & Folkman (1984). Los resultados del estudio dan cuenta de que el 100% de los cuidadores principales, eran madres (88%) y abuelas (12%). El 56,5% de ellas presentaba un afrontamiento alto y el 43,5% un afrontamiento medio. De las cuidadoras que demostraron afrontamiento alto se encontró que llevaban menos de un año a cargo del cuidado y pertenecen al estrato socioeconómico uno (1), con nivel de escolaridad técnico. Además, el 54% viven en unión libre, el 42% casadas y un 4% separadas. Los resultados por factores de afrontamiento demuestran reacciones, comportamientos y estrategias utilizadas para hacer frente a los problemas difíciles mediante un afrontamiento activo. Se concluye que la reevaluación positiva y la fe, como recursos esenciales, son empleados por los cuidadores.
Cáncer e inflamación en relación con el metabolismo del hierro
Authors: Rivillas Yudrum
Published: May 2020

El cáncer podría definirse como una enfermedad causada por un conjunto de diversos factores, que puede verse favorecida según ciertas circunstancias en el organismo, por ejemplo, la inflamación. En este artículo se repasan algunos conceptos sobre cómo influye el metabolismo de uno de los microelementos más importantes, que es el hierro, en relación a la formación del cáncer y el progreso de la inflamación. Se puede observar la importancia de estudiar el metabolismo del hierro en organismos superiores y su influencia en el funcionamiento del sistema inmune.
Dygðir, siðferði og siðferðisþroski: Að nota Íslendingasögur til mannkostamenntunar
Authors: Jack Róbert
Published: May 2020

Ein leið til að sinna mannkostamenntun er að lesa bókmenntir og greina og ræða mannkosti í þeim með nemendum. Í þessari grein er fjallað um forsendur þess að nota Íslendingasögur til mannkostamenntunar með nemendum á unglingsaldri. Rætt er um mikilvægi dygða fyrir mannkostamenntun, áherslu hennar á siðferðilegar dygðir og almenn tengsl dygða og siðferðis. Þá er fjallað um þær aðstæður í bókmenntum þar sem dygðir (eða lestir) birtast en þær eru hér kallaðar dygðaaðstæður. Rökstutt er að ekki sé erfitt að finna slíkar aðstæður í Íslendingasögum. Í ljósi tengslanna á milli dygða og siðferðis er jafnframt fjallað um siðferði Íslendingasagna og hvernig fræðileg umræða um það efni getur haft áhrif á mannkostamenntun. Auk þess er velt upp þeirri spurningu hvort það siðferði sem viðgekkst á tímum Íslendingasagnanna sé sama siðferðið og er viðtekið nú til dags. Stigskipt þroskalíkan Gilligan er notað til að staðsetja siðferðilegan veruleika Íslendingasagna gagnvart nútímasiðferði. Með hjálp þroskalíkansins má einnig bregðast betur við þeirri spurningu hvort hægt sé að nota sögu þar sem siðferði persóna er ef til vill ekki til fyrirmyndar til að efla siðferði nemenda. Með því að nota þroskalíkanið er samtímis hægt að skoða einkenni þeirrar siðferðilegu hugsunar sem stefna má að í mannkostamenntun með unglingum.
The Effect of the Storage on the Content of the Malvidin-3-Glucoside in Red Wine
Authors: Soural Ivo , Šnurkovič Petr , Tománková Eva , Forneck Astrid
Published: May 2020

Anthocyanins are plant dyes responsible for the colour of red wine. Of these, malvidin-3-glucoside is the most significant member and its content was monitored in wines that were first left to age in oak barrels for 12 months, subsequently bottled and sealed with plastic/cork stoppers. The malvidin-3-glucoside content was also studied in the same wines that were bottled right away without aging in barrels. Analyses were conducted within the time spans of 3 to 30 months. The highest malvidin-3-glucoside concentrations were found in month 3 of the aging process, and they significantly decreased in month 6 and month 15 of storing. Between month 15 and month 30 of storing, the content of malvidin-3-glucoside basically remained unchanged. The results of the measurements show that to preserve higher malvidin-3-glucoside levels for longer periods of time, it is better to store wine in barrels rather than in bottles and when a bottle is used instead of a barrel, a plastic stopper is better than a cork stopper.
Genetic Analysis of Some Agronomic Traits in Okra (Abelmoschus esculentus L. [Moench])
Authors: Olayiwola Muyideen Oluseyi , Olaniran Deborah Doyinsola , Nassir Adesola Lateef , Ariyo Omolayo Johnson
Published: May 2020

A study was carried out at the Federal University of Agriculture Abeokuta, Nigeria to determine the gene action underlying the inheritance of important agronomic traits as well as the general combining ability (GCA) and specific combining ability (SCA) of the parents and hybrids, respectively. Ten hybrids were developed by crossing five lines to two testers. The hybrids and parents were evaluated on the field in a randomised complete block design replicated three times, and data were collected on days to 50% flowering, number of branches, stem diameter, plant height, pod length, pod width, pod weight, number of pods and pod yield. The data were subjected to line by tester analysis and results showed substantial variability among the genotypes for some of the characters measured. Days to 50% flowering, number of pods and pod yield were largely under additive gene action while non-additive gene action was more important in the inheritance of plant height. Favourable GCA and SCA effects for days to 50% flowering were observed in NGB00356, NGB00326 and NGB00347 × NGB00326, respectively. The tester NGB00326 had a positive and significant GCA effect for number of pods while the highest positive SCA effect for pod yield was found in NGB00297 × NGB00326. Thus, NGB00356 and NGB00326 could be considered as sources of alleles for development of early maturing while the cross NGB00297 × NGB00326 could be exploited for high yielding okra genotypes.
Materials for Electromagnetic Purpose: The Case of a Microstrip Patch Antenna Characteristics Improvement by Additions of Metals as Spherical Inclusions Into the Substrate
Authors: Peter Ildiko , Matekovits Ladislau
Published: May 2020

This paper deals with the design of metamaterial (MTM) substrates to be used in electromagnetic devices. In particular, the approach has been considered for different investigations having the scope the realization of antennas on flexible substrates. The importance of the topic resides in the potential of conforming the antenna to/on desirable shapes. Flexibility is well exploitable either in advanced communication systems or in biomedical applications, just to mention some. The proposed MTM is made of metallic spherical inclusions of AISI52100, which are embedded in a polymer host. The paper aims to assess the feasibility of increasing the performance of a microstrip patch antenna, and to decrease its size by using the MTM substrate, which is able to locally control the permittivity of the substrate and to create electromagnetic band-gap regions outside of the patch.
Students’ Perception of the European Professors of Industrial Engineering and Management (EPIEM) Network
Authors: Mustata Ioan Cristian , Bucur Mihaela , Alves Anabela Carvalho , Pimentel Carina , Zunk Bernd Markus
Published: May 2020

This paper aims to mirror the way the European Professors of Industrial Engineering and Management (EPIEM)network perceives itself with a students’ view. Along with a presentation of the status quo of the EPIEM network, a brief survey among students is deployed to get an impression of the perception of EPIEM by its most active partner association - the European Students of Industrial Engineering and Management (ESTIEM). The explorative findings (i) provide insights into the current situation of EPIEM from an inside and outside perspective and (ii) deliver ideas for the future development of the EPIEM network. With regard to the relationship management practice between EPIEM and ESTIEM this research represents an innovative approach within the European IEM organizations.
Personnel Certification as a Necessary Condition for Enterprise’ Staff Development
Authors: Kis Sviatoslav , Mosora Larysa , Mosora Yurii , Yatsiuk Oleh , Malynovska Galyna , Pobihun Serhii
Published: May 2020

The theoretical research and substantiation of specialists compliance estimation with corporate requirements on the basis of international certification and determination of its role in the system of enterprise’ staff management are carried out in the article. The algorithm of the enterprise’ effect achievement of the preliminary international certification of the personnel involved in oil and gas wells drilling is offered. The relationship between the number of persons trained and certified by International Well Control Forum in Drilling Simulation Center of the Ivano-Frankivsk National Technical University of Oil and Gas and the volume of drilling of oil and gas wells in Ukraine is analyzed. The task was accomplished by means of correlation and regression analysis. The results of the calculations allow us to make sufficiently plausible assumptions about the impact of training and certification on drilling volumes. It is established that the increase in the number of persons certified according to International Well Control Forum for one person will allow to expect the volume of drilling of oil and gas wells by 0.734 thousand metres per year.
Does regular quality control improve the quality of surgery in Slovenian breast cancer screening program?
Authors: Perhavec Andraz , Milicevic Sara , Peric Barbara , Zgajnar Janez
Published: May 2020

Background

The aim of our study was to evaluate the quality of surgery of Slovenian breast cancer screening program (DORA) using the requested EU standards. Furthermore, we investigated whether regular quality control over the 3-year period improved the quality of surgical management.

Patients and methods

Patients who required surgical management within DORA between January 1st, 2016 and December 31st, 2018 were included in the retrospective study. Quality indicators (QIs) were adjusted mainly according to European Society of Breast Cancer Specialists (EUSOMA) and European Breast Cancer Network (EBCN) recommendations. Five QIs for therapeutic and two for diagnostic surgeries were selected. Additionally, variability in achieving the requested QIs among surgeons was analysed.

Results

Between 2016 and 2018, 14 surgeons performed 1421 breast procedures in 1398 women. There were 1197 therapeutical (for proven breast cancer) and 224 diagnostic surgical interventions respectively. Overall, the minimal standard was met in two QIs for therapeutic and none for diagnostic procedures. A statistically significant improvement in three QIs for therapeutic and in one QI for diagnostic procedures was observed however, indicating that regular quality control improves the quality of surgery. A high variability in achieving the requested QIs was observed among surgeons, which remained high throughout the study period.

Conclusions

Adherence to all selected surgical QIs in patients from screening program is difficult to achieve, especially to those specifically defined for screen-detected lesions. Regular quality control may improve results over time. Reducing the number of surgeons dedicated to breast pathology may reduce variability of management inside the institution.
Comparison of Estimators of Equity Return Standard Deviation Using Pitman Closeness Criterion and Control Charting Applications
Authors: Alan Chow , Dane Lahtinen Kyre , Kelsey Edwards
Published: May 2020

Measurement of dispersion and variation have been studied and evaluated in many applications. Volatility in the field of finance is an important measure as it directly impacts allocation, risk management, and valuation. Pitman Closeness criterion is used to compare estimators of standard deviation from equity returns in a control charting application. Three estimators are evaluated over the 30 DJIA component stocks in an effort to determine if one method of estimation has better performance within an application of control charting for identifying outliers. The study uses three sample sizes to also determine if the better estimator is sample size dependent.
Are Determinants of International Financial Integration in the European Transition Countries Different from Post-Transition Countries?
Authors: Mehmed Ganić
Published: May 2020

The paper seeks to empirically explore the variations and changes in the degree of International Financial Integration (IFI) between the European Transition countries and Post-Transition countries between 2000 and 2016. The estimation of parameters was made using the Generalized Method of Moment (GMM) approach. The findings of the study reveal that European Post-Transition countries have relatively more developed financial systems compared to European Transition countries, where private credit market is still playing an overwhelmingly important role in a financial system while stock markets are in an early stage of development constituting a relatively small share of the financial system. Even though in Panel 3 there are significant control variables, our findings reveal that IFI in European transition countries are affected neither by stock market capitalization and private credit markets. Consequently, they can’t be used in this stage of financial development for explanation of variations and changes in the degree of IFI.
Study Regarding the Effects of Demographic Transition on Labor Market and Public Pension System in Central and Eastern Europe
Authors: Nicolae Balteş , Amalia Jimon Ştefania
Published: May 2020

Population and the quality of labor force are the “strengths” features’ that ensure socio-economic development of a country. The last decades can be characterized as a transitional period, in which countries of European Union and especially the countries of Central and Eastern Europe are facing a demographic decline. Reduced birth rate, ageing and migration are factors’ which create a lot of pressure, both on labor market and public pension systems, items correlated with the population structure. In this paper we have presented the demographic situation and the size of migration in five countries of Central and Eastern Europe. The direct linkage between population structure, labor market and public pension systems represents, in transitional context, a threat to budget sustainability, especially in Romania. We consider that the reformation has to be adjusted with the new socio-economic conditions, finding new solutions for increasing birth rate, decreasing the “exodus” of young population and stimulating economic activities.
An Alternative View to the Global Coal Trade: Complex Network Approach
Authors: Semanur Soyyigit , Hüseyin Topuz , Halil Özekicioğlu
Published: May 2020

The role of energy for the developmental process of nations is a known fact due to being crucial input for any phase of production of goods and services. That’s the reason why countries that are rich in energy resources also have strategic power in terms of the international trade of these resources. On the other hand, it becomes important to provide energy security for countries that are resource-poor. Although green energy has become preferred one, fossil fuel energy keeps its place as one of the most used energy resources. That's why in this study it is aimed to determine major providers and users of coal as a type of fossil fuel energy resources. It is vital to investigate the structure of global coal trade structure to determine the weaknesses and strength of supply and use of coal. Network approach provides a holistic view to the system analyzed and presents more realistic (high-degree) indicators to analyze it. In this study, global trade network of coal is analyzed from 2000 to 2017 via network analysis. Changing structure and evolution of global coal trade has been revealed via some topological parameters which are specific to complex networks such as density, clustering, assortativity/disassortativity, centrality and degree distribution.
INVESTIGATING ENGLISH DEPARTMENT STUDENTS’ FOREIGN LANGUAGE SPEAKING ANXIETY: A CASE STUDY IN UNIVERSITAS AIRLANGGA, INDONESIA
Authors: Rachmawati Dyas Intan , Jurianto Jurianto
Published: May 2020

Anxiety during a speaking performance is a common phenomenon experienced by any EFL learners, including students majoring in English. Focusing on the issue, this study investigates the correlation between students’ foreign language speaking anxiety and speaking achievement. Moreover, this study also observes the levels and the sources of the speaking anxiety among the English Department’s fifth-semester students of Universitas Airlangga. This study used the Foreign Language Speaking Anxiety Scale (FLSAS) by Öztürk and Gurbuz (2014). The FLSAS questionnaire was distributed to 114 students in order to explore the correlation between speaking anxiety and speaking achievement, the speaking anxiety levels, and the speaking anxiety sources. The data collected through questionnaire were analyzed with SPSS 25.0. Pearson Product Moment Correlation isused to determine the correlation, while descriptive statistic alanalys is isused to investigate the levels and the sources for speaking anxiety. Horwitz, Horwitzand Cope’s(1986) theory and Horwitz and Young (1991) about the source and the levels of foreign language speaking anxiety are also used in this study. This study found that there is a significant negative correlation between speaking anxiety levels and speaking achievement. This means the higher the speaking anxiety they experience, the lower the achievement score they get. Most of the students have moderate levels of speaking anxiety, which is mainly due to the fear of negative evaluation.This study indicates that although the EFL learners are often exposed to English, they still experience speaking anxiety. These findings suggest that the lecturers should be more aware of students’ anxiety and use strategies that might encourage the students to speak more confidently.
Kompetensi Lulusan Sarjana Ekonomi Syariah Dalam Dunia Kerja (Urgensi dan Harapan)
Authors: Astuti Daharmi , Maharani Deswita
Published: May 2020

Tulisan ini diangkat dari penelitian dan skripsi mahasiswi Fakultas Agama Islam yang diampu oleh penulis dalam kerangka untuk membahas tentang sejauhmana kompetensi lulusan sarjana ekonomi Syariah dalam menghadapi dunia kerja. Tulisan ini membahas betapa pentingnya kita mengetahui sejauhmana tingkat kemampuan dan kompetensi yang dimiliki lulusan/alumni Fakultas Agama Islam dan mengetahui upaya apa saja yang dilakukan FAI UIR Prodi Ekonomi Syariah dalam mempersiapkan Lulusan Sarjana Ekonomi Syariah yang berkualitas. Penelitian ini diharapkan dapat menjadi acuan, masukan dan perbaikan mutu serta berdaya guna di masa yang akan datang.
Nilai-Nilai Pendidikan dalam Hadits Ibadah Aqiqah
Authors: Al-Kasyairi Muhammad Khoir
Published: May 2020

Ibadah aqiqah merupakan ibadah yang dilakukan oleh orang tua setelah anaknya lahir kedunia. Dalam islam, anjuran ibadah aqiqah termuat dalam hadits dari Rasulullah yang kemudian diriwayatkan oleh para sanad dan perawinya. Terdapat beberapa perbedaan menurut para alim ulama terkait tentang ibadah aqiqah ini. Namun demikian, para alim ulama tersebut menyetujui bahwa dalam pelaksanaan ibadah aqiqah ini terkandung nilai-nilai pendidikan didalamnya. Tulisan ini mengupas tentang penjelasan hadits yang berhubungan dengan ibadah aqiqah dan nilai-nilai pendidikan yang terkandung didalamnya. Tulisan ini juga memaparkan kedudukan hadits yang meriwayatkannya.
Metode Cooperative Learning dalam Pembelajaran Pendidikan Agama Islam
Authors: Tambak Syahraini
Published: May 2020

Manusia sebagai makhluk sosial senantiasa memiliki ketergantungan dengan orang lain. Manusia membutuhkan interaksi-komunikasi-sosialisasi dengan manusia lainnya yang kemudian terbentuklah komunitas bermasyarakat. Dalam berbagai kegiatan, manusia sewajarnya melakukan kegiatan saling membantu antar sesama termasuk dalam kegiatan memperoleh pengetahuan. Dengan kata lain, melalui metode kooperatif maka upaya dengan bekerja sama dapat menyelesaikan persoalan guna meningkatkan kemampuan peserta didik dalam memahami materi pelajaran. Metode cooperative learning dapat memotivasi peserta didik untuk berfikir kritis sekaligus dialogis, kreatif dan interaktif yakni problem solving atau pengajuan masalah-masalah yang dituangkan dalam bentuk pertanyaan. Permasalahan dalam bentuk pertanyaan-pertanyaan tersebut kemudian diupayakan untuk dicari jawabannya baik secara individu maupun bersama dengan pihak lain, misalnya sesama peserta didik maupun dengan pengajar sendiri. Metode cooperative learning dalam pembelajaran pendidikan agama Islam adalah cara menyajikan pembelajaran dengan belajar bersama berbentuk kelompok kecil yang terstruktur di dalamnya peserta didik melakukan aktivitas belajar saling membantu guna meningkatkan kemampuan kognitif, afektif, dan psikomotorik dalam memahami materi pelajaran dan memecahkan masalah secara kolektif sesuai dengan indikator pembelajaran PAI yang telah ditetapkan.
Hubungan Penggunaan Media Pembelajaran Audio Visual dengan Minat Peserta Didik pada Pembelajaran Pendidikan Agama Islam di SMAN 1 Bangkinang Kota
Authors: Hayati Najmi , Harianto Febri
Published: May 2020

Media pembelajaran audio visual adalah media perantara yang penyerapannya melalui pandangan dan pendengaran sehingga membangun kondisi yang dapat membuat siswa mampu memperoleh pengetahuan, keterampilan, atau sikap yang dipergunakan untuk membantu tercapainya tujuan belajar. Minat adalah keinginan besar terhadap sesuatu yang terdiri dari berbagai perasaan serta pemusatan perhatian yang sengaja dan penuh kemauan yang mengarahkan individu pada suatu pilihan. Rumusan masalah yang di bahas dari penelitian ini adalah apakah ada hubungan penggunaan media pembelajaran audio visual dengan minat peserta didik pada pembelajaran pendidikan agama islam di SMAN 1 Bangkinang Kota. Berdasarkan rumusan masalah tersebut maka penelitian ini bertujuan untuk mengetahui hubungan penggunaan media pembelajaran audio visual dengan minat peserta didik pada pembelajaran pendidikan agama islam. Adapun manfaat dari penelitian ini bagi kepala sekolah untuk mengambil kebijakan agar guru mampu menggunakan media dalam proses pembelajaran terutama media audio visual pada materi tertentu sehingga dapat menumbuhkan minat peserta didik dalam proses pembelajaran. Jenis penelitian ini adalah korelasi (hubungan). Untuk memperoleh data dari penelitian ini, maka digunakan metode pengumpulan data melalui angket yang disebarkan kepada 77 responden. Berdasarkan hasil pengolahan dan analisis data yang telah penulis lakukan, maka diperoleh hasil dalam taraf “rendah”. Hubungan tersebut dibuktikan dengan tingkat korelasi positif sebesar 0,284 olahan SPSS dan hasil rumus Korelasi Product Moment 0,28, terletak diantara interval 0,20-0,399 kondisi tersebut berarti ditemukan adanya hubungan penggunaan media pembelajaran audio visual dengan minat peserta didik pada pembelajaran pendidikan agama islam. Jadi, rhitung > rtabel (0,28 > 0,277) dan juga thitung>ttabel (2,53 > 2,000) sehingga Ha diterima dan Ho ditolak.
Islamisasi Ilmu Pengetahuan (Konsep Pemikiran Ismail Raji Al-Faruqi dan Syed Muhammad Naquib Al-Attas)
Authors: Sholeh Sholeh
Published: May 2020

Fenomena terkait dengan pekembangan ilmu pengetahuan begitu pesat. Ditandai oleh munculnya ilmu-ilmu pengetahuan yang baru. Fenomena ini memunculkan sebuah dampak yang begitu besar bagi umat muslim. Sebab dengan perkembangan ilmu pengetahuan tersebut memicu suatu kebobrokan moral dan etika yang tidak berlandaskan agama Islam. Yang mana Islam telah diakui sebagai agama yang paling benar dan berakhlak. Dengan demikian muncullah sebuah kekritisan dari seorang cendekiawan muslim yang mencetuskan gagasan Islamisasi ilmu pengetahuan. Beliau adalah Ismail Raji Al-Faruqi dan Syed M. Naquib Al-Attas. Keduanya melihat fenomena perkembangan ilmu pengetahuan ini sudah melenceng dari ajaran-ajaran Islam. Sehingga membawa dampak seseorang menjadi sekuler. Berangkat dari sana kedua cendekiawan muslim ini melakukan Islamisasi pengetahuan dengan berbagai cara. Islamisasi ilmu pengetahuan merupakan langkah dalam menciptakan suatu peradaban Islam dalam dunia ilmu pengetahuan. Kedua tokoh besar tersebut menawarkan beberapa opsi dalam melakukan Islamisasi ilmu pengetahuan. Diantara opsi tersebut Syed M.Naquib Al-Attas menawarkan dua opsi dalam melakukan Islamisasi ilmu pengetahuan, yang pertama dengan melakukan pemisahan konsep-konsep kunci yang membentuk kebudayaan dan peradaban Barat. Yang kedua, dengan memasukan konsep kunci Islam ke dalam setiap cabang ilmu pengetahuan masa kini yang relevan. Dalam hal ini Ismail Raji Al-Faruqi juga menawarkan dua Konsep dalam melakukan Islamisasi ilmu pengetahuan. Yakni tauhid, integrasi kebenaran Islam dan ilmu pengetahuan, dan ayatisasi atau pemberian ayat-ayat terhadap ilmu pengetahuan.
Pengaruh Bauran Promosi Terhadap Peningkatan Jumlah Tamu pada Wisma Graha Az-Zahra Pekanbaru
Authors: Rusby Zulkifli , Bakhri Boy Syamsul , Rozi Syahrul
Published: May 2020

Penelitian ini dilatarbelakangi oleh Wisma Syariah Graha Az-Zahra Pekanbaru mengalami permasalahan terhadap jumlah tamu yang mengalami penurunan. Hal ini diduga terjadi karena belum optimalnya perusahaan dalam mempromosikan produk-produknya kepada masyarakat/pelanggan/tamu. Adapun yang menjadi perumusan masalah dalam penelitian ini adalah bagaimana pengaruh bauran promosi terhadap peningkatan jumlah tamu pada Wisma Syariah Graha Az-Zahra Pekanbaru. Tujuan penelitian ini adalah untuk mengetahui pengaruh bauran promosi terhadap peningkatan jumlah tamu. Subjek penelitian ini adalah tamu yang menggunakan jasa penginapan. Sementara objek dalam penelitian ini adalah pengaruh bauran promosi terhadap peningkatan jumlah tamu. Sumber data yang digunakan dalam penelitian ini data primer dan data sekunder. Teknik pengambilan sampel digunakan dengan cara simple random sampling, sedangkan teknik pengumpulan data yang digunakan adalah angket atau kuesioner dan dokumentasi. Untuk menganalisis data digunakan metode deskriptif kuantitatif. Dalam menganalisis data kuantitatif digunakan analisis regresi linear sederhana dimana proses perhitungannya menggunakan SPSS for windows versi 17.0. Hasil penelitian ini diketahui bauran promosi terhadap peningkatan jumlah tamu memiliki hubungan yang kuat, ini diketahui dari nilai koefisien korelasi sebesar 78,1%. Sedangkan hasil uji parsial terdapat pengaruh yang signifikan antara bauran promosi terhadap peningkatan jumlah tamu, ini diketahui dari t hitung sebesar 12,176. Kemudian terdapat besarnya kontribusi antara bauran promosi terhadap peningkatan jumlah tamu, diketahui dengan nilai koefisien determinasi sebesar 60,9%. Secara umum dapat disimpulkan bahwa bauran promosi terhadap peningkatan jumlah tamu pada Wisma Syariah Graha Az-Zahra Pekanbaru sangat berpengaruh.
Massively Parallel Classical Logic via Coherent Dynamics of an Ensemble of Quantum Systems with Dispersion in Size
Authors: Gattuso Hugo , Levine Raphael D. , Remacle Francoise
Published: May 2020

Quantum parallelism can be implemented on a classical ensemble of discrete level quantum systems. The nano systems are not quite identical and the ensemble represents their individual variability. An underlying Lie algebraic theory is developed using the closure of the algebra to demonstrate the parallel information processing at the level of the ensemble. The ensemble is addressed by a sequence of laser pulses. In the Heisenberg picture of quantum dynamics the coherence between the N levels of a given quantum system can be handled as an observable. Thereby there are N2 logic variables per N level system. This is how massive parallelism is achieved in that there are N2 potential outputs for a quantum system of N levels. The use of an ensemble allows simultaneous reading of such outputs. Due to size dispersion the expectation values of the observables can differ somewhat from system to system. We show that for a moderate variability of the systems one can average the N2 expectation values over the ensemble while retaining closure and parallelism. This allows directly propagating in time the ensemble averaged values of the observables. Results of simulations of electronic excitonic dynamics in an ensemble of quantum dot, QD, dimers are presented. The QD size and interdot distance in the dimer are used to parametrize the Hamiltonian. The dimer N levels include local and charge transfer excitons within each dimer. The well-studied physics of semi-conducting QDs suggests that the dimer coherences can be probed at room temperature
Silver-Catalyzed Enantioselective Propargylic C–H Bond Amination Through Rational Ligand Design
Authors: ju minsoo , Zerull Emily , Roberts Jessica , Huang Minxue , Schomaker Jennifer
Published: May 2020

Asymmetric C–H amination via nitrene transfer (NT) is a powerful tool for the preparation of enantioenriched amine building blocks from abundant C–H bonds. Herein, we report a highly regio- and enantioselective synthesis of -alkynyl -amino alcohol motifs via a silver-catalyzed propargylic C–H amination. The protocol was enabled by development of a new bis(oxazoline) (BOX) ligand through a rapid structure-activity relationship (SAR) analysis. The method utilizes readily accessible carbamate ester substrates bearing -propargylic C–H bonds and furnishes versatile products in good yields and with excellent enantioselectivity (90–99% ee). A putative Ag–nitrene intermediate is proposed to undergo an enantiodetermining hydrogen-atom transfer (HAT) during the C–H amination event. Density functional theory (DFT) calculations were performed to investigate the origin of enantioselectivity in the HAT step.
Profiling Molecular Simulations of SARS-CoV-2 Main Protease (Mpro) Binding to Repurposed Drugs Using Neural Network Force Fields
Authors: Gupta Aayush
Published: May 2020

With the current pandemic situation caused by a novel coronavirus disease (COVID-19), there is an urgent call to develop a working therapeutic against it. Efficient computations aid to minimize the efforts by identifying a subset of drugs that can potentially bind to COVID-19 main protease or target protein (MPRO). The results of computations are always accompanied by their accuracy which depends on the details described by the model used. Machine learning models trained on millions of points and with unmatched accuracies are the best bet to employ in the process. In this work, I first identified and described the interaction sites of MPRO protein using a geometric deep learning model. Secondly, I conducted virtual screening (at one of the sites identified) on FDA approved drugs and picked 91 drugs having the highest binding affinity (below -8.0 kcal/mol). Then, I carried out 10 ns of molecular dynamics (MD) simulations using classical force fields and classified 37 drugs to be binding (includes drugs like Lopinavir, Saquinavir, Indinavir etc.) based on RMSD between MD-binding trajectories. To drastically improve the dynamics profile of selected 37 drugs, I brought in the highly accurate neural network force field (ANI) trained on coupled-cluster methods (CCSD(T)) data points and performed 1 ns of binding dynamics of each drug with protein. With the accurate approach, 19 drugs were qualified based on their RMSD cutoffs, and again with their free energy (ANI/MM/PBSA) computations another 7 drugs were rejected. The final selection of 12 drugs was validated based on MD trajectory clustering approach where 11 of 12 drugs (Targretin, Eltrombopag, Rifaximin, Deflazacort, Ergotamine, Doxazosin, Lastacaft, Rifampicin, Victrelis, Trajenta, Toposar, Indinavir) were confirmed to be binding. Further investigations were made to study their interactions with the protein and an accurate 2D- interaction map was generated. These findings and mapping of drug-protein interactions are highly accurate and could be potentially used to guide rational drug discovery against the COVID-19.