bluuebunny/crossref_metadata_2025 huggingface dataset:
Direct-acting Antivirals in Kidney Transplant Patients: Successful Hepatitis C Treatment and Short Term Reduction in Urinary Protein/Creatinine Ratios
Authors: Goetsch Michael R. , Tamhane Ashutosh , Varshney Mohit , Kapil Anuj , Overton Edgar T. , Towns Graham C. , Franco Ricardo A.
Published: September 2017

Introduction: The role of Hepatitis C Virus (HCV) clearance in long-term kidney graft survival is unknown. In this study, we examined short-term trends of urinary protein/creatinine (P/C) ratios in a cohort of HCV-infected kidney transplant recipients with stable graft function and treated with direct-acting antivirals (DAAs).Methods: We conducted a retrospective study of 19 kidney transplant patients with chronic HCV infection treated with DAAs at the University of Alabama at Birmingham 1917 Viral Hepatitis Clinic between January 2013 and June 2016. Markers of glomerular damage were assessed using average protein/creatinine (P/C) ratios measured pre- and post-treatment. We also described treatment efficacy using sustained virologic response at 12 weeks post-HCV treatment (SVR12).Results: The median age of the 19 patients included was 59 years (Q1=58, Q3=64) at completion of treatment. Of these patients, 68% were African American, 32% were White and 63% were male. The median time between kidney transplant and initiation of DAA therapy was 2.25 years (Q1=0.79, Q3=3.79). Post-treatment P/C ratios (median=0.127, Q1=0.090, Q3=0.220) were significantly lower (p=0.01) than pre-treatment ratios (median=0.168, Q1=0.118, Q3=0.385). P/C ratios decreased in 14 of 19 patients (74%) with median change of -0.072 (median percent change= -40%). Post-treatment eGFRs (median=58.9, Q1=48.9, Q3=72.3) were not significantly different (p=0.82) than the pre-treatment values (median=57.0, Q1=48.8, Q3=67.8).Conclusions: In this preliminary study, there was a statistically significant decrease in P/C ratios associated with HCV clearance, suggesting a potential role for DAAs in improving kidney graft survival. Larger cohort studies will be needed to assess the clinical and long-term benefits of DAAs in this special population of HCV infected patients.
The Effect of Health Service Quality and Brand Image on Patients Loyalty, With Patients Satisfaction as Mediating Variable (A Study in Vip Ward Of Prof. Dr R Soeharso Ortopedics Hospital In Surakarta)
Authors: Sibarani Tangkas , Riani Asri Laksmi
Published: September 2017

Business in healthcare service, like other service business, should provide a service to its patients in order to maintain patients’ loyalty to be a loyal customer. A method in increasing patients’ satisfaction and loyalty is by focusing a hospital’s business on service quality aspect. Customers’ satisfaction is an effective measurement in assessing service quality that is based on patient’s consideration on the service provided and their personal experience. The main objective of this research is to understand the effect of service quality and brand image on patients’ loyalty, with patients’ satisfaction as mediating variable. To determine the determinant of patients’ satisfaction, the study is focused on the inpatients, especially those who stay at VIP ward, of Prof Dr R Soeharso Ortopedics Hospital Surakarta, Central Java, Indonesia. The research method used is survey, which is conducted by distributing a questionnaire directly to the surveyed patients. Reliability and validity test (using Servqual instrument) is conducted. The respondents of this research consist of 211 inpatients. The data collected is analyzed using SEM method. The result shows that service quality affects patients’ satisfaction through brand image and service quality. Simultaneously, service quality and brand quality affect patients’ satisfaction. Therefore, patients’ satisfaction affects patients’ loyalty. The implication of this research is the manager of a health care company should continuously improve the service quality and brand image, thus increasing patients’ satisfaction, which will lead to patients’ loyalty.
The Use of Biological Approaches in the Treatment of Shoulder Pathology
Authors: Pogorzelski Jonas , Godin Jonathan A. , Fritz Erik M. , Cinque Mark E. , Chahla Jorge , Huard Johnny , Millett Peter J.
Published: September 2017

* The major pathological conditions affecting the shoulder that are treated with use of biological applications include focal cartilage lesions and rotator cuff tears. Biological modalities that previously have been used or investigated include platelet-rich plasma (PRP), growth factors, progenitor cells, bone-marrow stimulation, autologous chondrocyte implantation (ACI), matrix-induced ACI (MACI), and biological scaffolds.

* Marrow-stimulating procedures have been reported to yield positive results when used for the treatment of focal cartilage lesions of the glenoid or humeral head. Limited data are available on the use of PRP, ACI, and MACI for the treatment of chondral lesions involving the shoulder, and therefore no conclusions can be drawn regarding the efficacy of these modalities.

* Preclinical and in vitro studies have demonstrated that modulation of growth factors may be helpful for rotator cuff tear healing; however, the optimal modulation and delivery vehicle remain to be elucidated. PRP has received much research attention; however, most studies have been hindered by study setup and conflicting results. Therefore, the use of PRP to enhance rotator cuff healing remains controversial. Progenitor cells have shown positive results in a small number of preclinical and clinical studies, but further research is needed before conclusions can be drawn.

* In summary, basic-science studies investigating biological factors to enhance healing in the shoulder have shown potential. However, clinical data are still limited, contradictory, and controversial. Additional research is needed. Most importantly, robust, consistent, well-powered clinical trials are necessary to definitively determine which methods improve clinical outcomes.
Identification of potential sewer mining locations: a Monte-Carlo based approach
Authors: Tsoukalas I. K. , Makropoulos C. K. , Michas S. N.
Published: September 2017

Rapid urbanization affecting demand patterns, coupled with potential water shortages due to supply side impacts of climatic changes, has led to the emergence of new technologies for water and wastewater reuse. Sewer mining (SM) is a novel decentralized option that could potentially provide non-potable water for urban uses, including for example the irrigation of urban green spaces, providing a mid-scale solution to effective wastewater reuse. SM is based on extracting wastewater from local sewers and treatment at the point of demand and entails in some cases the return of treatment residuals back to the sewer system. Several challenges are currently in the way of such applications in Europe, including public perception, inadequate regulatory frameworks and engineering issues. In this paper we consider some of these engineering challenges, looking at the sewer network as a system where multiple physical, biological and chemical processes take place. We argue that prior to implementing SM, the dynamics of the sewer system should be investigated in order to identify optimum ways of deploying SM without endangering the reliability of the system. Specifically, both wastewater extraction and sludge return could result in altering the biochemical process of the network, thus unintentionally leading to degradation of the sewer infrastructure. We propose a novel Monte-Carlo based method that takes into account both spatial properties and water demand characteristics of a given area of SM deployment while simultaneously accounting for the variability of sewer network dynamics in order to identify potential locations for SM implementation. The outcomes of this study suggest that the method can provide rational results and useful guidelines for upscale SM technologies at a city level.
Измерение времени жизни колебательных состояний молекул ДНК в функционализированных комплексах полупроводниковых квантовых точек
Authors: Байрамов Ф.Б. , Полоскин Е.Д. , Чернев А.Л. , Топоров В.В. , Дубина M.В. , Байрамов Б.Х.
Published: September 2017

Комплексы самоорганизованных изолированных полупроводниковых кристаллических квантовых точек nc-Si/SiO2, функционализированных короткими олигонуклеотидами, являются уникальными объектами для выявления особенностей проявления новых квантово-размерных эффектов. Показано, что обнаружение узких спектральных линий в спектрах микрорамановского рассеяния света высокого спектрального разрешения позволяет определить характерный масштаб времен колебательных возбуждений молекул нуклеотидов. Установлена возможность количественного изучения структурно-динамических свойств быстропротекающих колебательных процессов в биомакромолекулах. DOI: 10.21883/FTP.2017.10.45016.8583
Вертикальный транспорт в гетеропереходах II типа с композитными квантовыми ямами InAs/GaSb/AlSb в сильном магнитном поле
Authors: Михайлова М.П. , Березовец В.А. , Парфеньев Р.В. , Данилов Л.В. , Сафончик М.О. , Hospodkova A. , Pangrac J. , Hulicius E.
Published: September 2017

Вертикальный транспорт исследован в гетеропереходах II типа с двухбарьерной квантовой ямой AlSb/InAs/GaSb/AlSb, выращенной методом МОГФЭ (MOVPE) на подложке n-InAs(100), в квантующих магнитных полях до B=14 Тл при низких температурах, T=1.5 и 4.2 K. Ширина квантовых ям выбиралась из условия получения инвертированной зонной структуры. Измерения осцилляций Шубникова-де-Гааза проводились при двух ориентациях магнитного поля (перпендикулярной и параллельной) относительно плоскости структуры. Установлено, что проводимость в исследуемой структуре осуществлялась как трехмерными (3D) электронами подложки, так и двумерными (2D) электронами квантовой ямы InAs в условиях квантового предела для объемных электронов (B>5 Tл). Определены концентрации электронов в подложке и в квантовой яме InAs, а также g-фактор для трехмерных носителей из спинового расщепления нулевого уровня Ландау. Показано, что максимумы кондактанса в магнитном поле, перпендикулярном плоскости структуры и параллельном току через структуру, в полях B>9 Тл соответствуют резонансному туннелированию 3D электронов из подложки-эмиттера в квантовую яму InAs через 2D электронные состояния уровней Ландау. DOI: 10.21883/FTP.2017.10.45019.8598
Исследования методом рентгеновской фотоэлектронной спектроскопии наноструктур ZnS-=SUB=-x-=/SUB=-Se-=SUB=-1-x-=/SUB=-, полученных в матрице пористого оксида алюминия,
Authors: Чукавин А.И. , Валеев Р.Г. , Бельтюков А.Н.
Published: September 2017

Наноструктуры полупроводниковых соединений ZnSxSe1-x (x=0, 0.1, 0.3, 0.5, 0.7, 1) были синтезированы с использованием темплатного метода, основанного на формировании наночастиц полупроводника в шаблонах пористого анодного оксида алюминия при помощи метода вакуумного термического испарения смеси порошков ZnS и ZnSe. Представлены результаты исследований элементного состава полученных наноструктур в зависимости от состава исходной смеси и параметров матрицы-подложки методом рентгеновской фотоэлектронной спектроскопии. Показано, что состав наноструктур близок к составу исходных порошков и может быть задан соотношением ZnS/ZnSe в исходной смеси. DOI: 10.21883/FTP.2017.10.45020.8381
Диффузионно-контролируемый рост нанокристаллов Ge в пленках SiO-=SUB=-2-=/SUB=- в условиях ионного синтеза под высоким давлением
Authors: Тысченко И.Е. , Черков А.Г.
Published: September 2017

Изучен рост нанокристаллов германия в пленках SiO2 в зависимости от дозы имплантированных ионов Ge+ и температуры отжига под давлением 12 кбар. Установлено, что зависимость размеров нанокристаллов от концентрации атомов германия и от времени отжига описывается соответствующими корневыми функциями. Квадрат радиуса нанокристалла является экспоненциальной функцией обратной температуры. Полученные зависимости соответствуют модели диффузионно-контролируемого механизма роста нанокристаллов. По температурной зависимости размеров нанокристаллов определен коэффициент диффузии германия в SiO2 под давлением 12 кбар: D=1.1·10-10exp(-1.43/kT). Увеличение коэффициента диффузии Ge под давлением объяснено изменением активационного объема образования и миграции точечных дефектов. Получены данные в пользу межузельного механизма диффузии атомов германия к зародышам нанокристаллов в SiO2. DOI: 10.21883/FTP.2017.10.45023.8564
Формирование и исследование p-i-n-структур на основе двухфазного гидрогенизированного кремния со слоем германия в i-области
Authors: Кривякин Г.К. , Володин В.А. , Шкляев А.А. , Mortet V. , More-Chevalier J. , Ashcheulov P. , Remes Z. , Stuchlikova T.H. , Stuchlik J.
Published: September 2017

Методом плазмохимического осаждения сформированы четыре пары p-i-n-структур на основе pm-Si:H (полиморфного Si : H). Структуры в каждой паре выращивались на одной подложке так, что одна из них была без Ge в i-слое, а другая содержала Ge, который осаждался слоем толщиной 10 нм методом вакуумного напыления. Пары различались между собой температурой подложки при осаждении Ge, которая была 300, 350, 400 и 450 oC. Данные электронной микроскопии показали, что структуры, полученные при 300 oC, содержали нанокристаллы Ge (nc-Ge), центрами зарождения которых являлись нанокристаллические включения на поверхности pm-Si:H. Концентрация nc-Ge увеличивалась c возрастанием температуры. Исследование вольт-амперных характеристик показало, что наличие Ge в i-слое уменьшало плотность тока короткого замыкания в p-i-n-структурах, когда они использовались как солнечные элементы, тогда как наблюдалось увеличение тока под действием освещения при обратном смещении. Полученные результаты согласуются с известными данными для структур с кластерами Ge в Si, согласно которым кластеры Ge увеличивают коэффициент поглощения света, но также увеличивают и скорость рекомбинации носителей. DOI: 10.21883/FTP.2017.10.45024.8547
Кинетические особенности образования зародышей новой фазы в электрическом поле в ряде свинцово-содержащих релаксоров
Authors: Камзина Л.С. , Кулакова Л.А.
Published: September 2017

Исследована кинетика и динамика образования зародышей новой фазы во внешнем электрическом поле E||[001] в сегнетоэлектрических релаксорах PbIn1/2Nb1/2O3-PbMg1/3 Nb2/3O3-xPbTiO3 (x=25 и 32%) и PbMg1/3Nb2/3O3-29PbTiO3. При комнатной температуре проведены совместные измерения оптического пропускания на разных длинах волн, а также скорости и затухания звука на разных частотах. Проведeн анализ характера изменений оптических и акустических свойств в различных электрических полях с целью выявления механизмов таких изменений в условиях фазового перехода. Уменьшение оптического пропускания со временем связано только с изменением размеров нанообластей в процессе фазового перехода. Hаблюдаемые акустические аномалии являются следствием фазового перехода и обусловлены увеличением жесткости решетки, вызванной большим пьезоэлектрическим эффектом в сегнетоэлектрической фазе. DOI: 10.21883/FTT.2017.10.44963.129
Парамагнитные дефекты в кристаллах ZnSe, активированных ионами железа
Authors: Важенин В.А. , Потапов А.П. , Шакуров Г.С. , Фокин А.В. , Артёмов М.Ю. , Козловский В.И. , Коростелин Ю.В. , Пыталев Д.С.
Published: September 2017

Исследованы спектры парамагнитного резонанса монокристаллов ZnSe, легированных железом. Кроме кубических центров Fe3+ и Mn2+, а также центров Fe2+ и Cr2+ обнаружены моноклинные комплексы Fe3+, локально компенсированные ионами Cu+. Также обнаружены и исследованы тригональные центры со спином 3/2. Измерены начальные расщепления моноклинных центров, определены параметры моноклинного и тригонального спиновых гамильтонианов. Обсуждается природа тригональных центров. Работа выполнена в рамках государственного задания Минобрнауки России для Уральского федерального университета (3.6115.2017/8.9), Программы президиума РАН 1.26 в КФТИ КазНЦ РАН и при поддержке Программы повышения конкурентоспособности НИЯУ МИФИ. Измерения проведены на спектрометре трехсантиметрового диапазона Центра коллективного пользования Современные нанотехнологии" Уральского федерального университета и высокочастотном перестраиваемом спектрометре Казанского физико-технического института. DOI: 10.21883/FTT.2017.10.44967.118
Фазовая диаграмма O(n)-модели с дефектами типа "случайное локальное поле" и справедливость теоремы Имри и Ма
Authors: Берзин А.А. , Морозов А.И. , Сигов А.С.
Published: September 2017

Показано, что теорема Имри и Ма, утверждающая, что в пространстве размерности d<4 введение сколь угодно малой концентрации дефектов типа "случайное локальное поле" в систему с непрерывной симметрией n-компонентного векторного параметра порядка (O(n)-модель) приводит к исчезновению дальнего порядка и появлению неоднородного состояния, несправедлива, если анизотропное распределение направлений случайных локальных полей дефектов в пространстве параметра порядка создает эффективную анизотропию типа "легкая ось". В случае слабо анизотропного распределения полей в пространстве размерности 2≤ d<4 существует критическая концентрация дефектов, при превышении которой неоднородное состояние Имри-Ма может существовать как равновесное. При меньшей концентрации дефектов в системе имеет место дальний порядок. В случае сильно анизотропного распределения полей состояние Имри-Ма полностью подавляется, и состояние с дальним порядком реализуется при любой концентрации дефектов. Работа поддержана грантом Президента РФ НШ-8003.2016. DOI: 10.21883/FTT.2017.10.44970.119
Прецизионная калибровка уровня легирования кремнием эпитаксиальных слоев арсенида галлия
Authors: Мохов Д.В. , Березовская Т.Н. , Кузьменков А.Г. , Малеев Н.А. , Тимошнев С.Н. , Устинов В.М.
Published: September 2017

Рассмотрен подход к обеспечению прецизионной калибровки уровня легирования кремнием эпитаксиальных слоев арсенида галлия, основанный на исследовании зависимости концентрации носителей заряда в тестовом слое GaAs от температуры источника кремния методами на основе эффекта Холла и CV-профилирования. Для измерений параметров используются стандартные или аттестованные методики измерений и средства измерений утвержденного типа. Показано, что использование метода CV-профилирования для контроля концентрации носителей заряда в тестовом слое GaAs при тщательной оптимизации измерительной процедуры обеспечивает наивысшую точность и достоверность калибровки уровня легирования эпитаксиальных слоев с относительной погрешностью не более 2.5%. DOI: 10.21883/PJTF.2017.19.45086.16931
Control de calidad en sistemas crowdsourcing: un mapeo sistemático
Authors: Vélez Paulo Andrés , Rey Piedrahita Andrés
Published: September 2017

En el ámbito de la Web 2.0 se ha facilitado la implementación de un modelo efectivo en la solución de problemas denominado crowdsourcing que pretende aprovechar las capacidades y competencias de un grupo grande de individuos para resolver una determinada tarea.  El crowdsourcing no es un concepto nuevo, pero gracias a las nuevas tecnologías de la información y la comunicación está evolucionando a medida que se emplea en nuevas investigaciones y aplicaciones. Actualmente, el crowdsourcing es utilizado, entre otros, en procesos de adquisición y tratamiento de información estableciendo un nuevo enfoque en el campo de la gestión del conocimiento. Este artículo presenta los resultados de un mapeo sistemático realizado a la literatura con el propósito de conocer los diferentes mecanismos propuestos para asegurar la calidad de los resultados en los sistemas crowdsourcing y las oportunidades de investigación se encuentran en torno a este tema.
¿Estamos dispuestos a renunciar a la igualdad?
Authors: Quevedo Luis Alberto
Published: September 2017

Explorar la tensión entre la libertad y la igualdad, tal como fueron ideadas y legadas por la revolución francesa parece ser hoy una tarea tan necesaria como inevitable en el campo de las ciencias sociales. El mandato que dejó aquella revolución no funcionó en la mayoría de las experiencias políticas posteriores y durante el siglo XX y las naciones trataron deapaciguar los conflictos gestionando la igualdad, a través de las distintas experiencias del Estado de Bienestar. Pero en el siglo XXI estos conceptos entran en crisis por la tensión entre los intereses de los desposeídos frente al de los poderosos hasta volverlos irreconciliables: la dinámica del capitalismo —dominado por el capital financiero— entra en colisión con ciertas políticas sociales basadas en principios de equidad que introduce este modelo de Estado de Bienestar.En un informe del año 2016 de la UNESCO, la desigualdad vuelve a ponerse en agenda, ya que puede poner en peligro la sostenibilidad sociedades.Se desarrollan siete dimensiones de la desigualdad y se las pone en contexto para explicar su crecimiento. Por esto la Agenda de las Naciones Unidas adopta los Objetivos para el Desarrollo Sostenible, cuya finalidad específica es “reducir la desigualdad en y entre los países”, teniendo en cuenta las particularidades de cada caso.Algunos de estos temas tienen que ver con la agenda política y económica que está hoy presente en la Argentina. Luego de la elección de un nuevo gobierno en el 2015, ya no aparecen políticas de redistribución del ingreso que no estén ligadas a la teoría del derrame —hecho negado en el informe de la UNESCO—. Entonces vuelve el interrogante por los principios que inspiran a las políticas públicas y la pregunta por la aceptación de la sociedad de un modelo donde la desigualdad se acentúa. El marketing político toma un lugar central en la constitución de un nuevo poder y un nuevo modelo comunicacional y, al mismo tiempo, se produce un corrimiento del debate económico al cultural, para solidificar un pacto ideológico que rechace el regreso de cualquier pasado populista.Se desmantelan así los principios rectores de la tradición liberal y revolucionaria,vivimos en una posdemocracia, donde se instala la desigualdad como un valor natural o, al menos, como un principio deseable paranuestras sociedades.
A presença judaica na produção historiográfica brasileira: um balanço
Authors: Ragusa Helena
Published: September 2017

Este artigo trata da produção historiográfica sobre os judeus no Brasil, desde o período que abrange a colonização, levando-se em conta a ampla e diversificada atuação destes sujeitos, perpassando pelas mais variadas esferas sociais, políticas,econômicas, culturais e religiosas, com indicações de tipologias dos estudos, aspectos abordados, opções metodológicas e fontes pesquisadas. O objetivo é apresentar um balanço inicial dessa produção acadêmica e, ao mesmo tempo, apontar questões,discutir problemas e identificar os desafios dessa área de pesquisa.
Rua Governador Sampaio: cinema, cidade e trabalho
Authors: Capistrano Rodrigo
Published: September 2017

Rua Governador Sampaio é um filme documentário que registra, no período de um dia, a rotina de uma das mais movimentadas ruas do centro da cidade de Fortaleza. O referido lugar abriga principalmente depósitos de mercadorias, além de grandes e pequenas lojas que destinam seus produtos para a venda no atacado. A partir da análise do filme, colocaremos em diálogo a cidade e o trabalho, refletindo sobre algumas transformações urbanas recentes da capital cearense.
Źródła informacji i inicjatorzy w działalności innowacyjnej w gospodarstwach rolniczych
Authors: Chrobocińska Katarzyna , Nasalski Zbigniew , Łukiewska Katarzyna
Published: September 2017

W opracowaniu określono najważniejsze źródła informacji o innowacjach oraz inicjatorów działalności innowacyjnej w gospodarstwach rolniczych wykorzystujących w działalności aktywa pochodzące z ZWRSP. Wyniki przeprowadzonych badań wskazują, że inicjatorami działań innowacyjnych byli przede wszystkim właściciele gospodarstw rolniczych. Najczęściej wskazywanymi źródłami informacji o innowacjach byli pracownicy ośrodków doradztwa rolniczego, Internet, a także kursy i szkolenia.
A retrieval algorithm of encrypted speech based on syllable-level perceptual hashing
Authors: He Shaofang , Zhao Huan
Published: September 2017

To retrieve voice information in a fast and accurate manner over encrypted speech, this study proposes a retrieval algorithm based on syllable-level perceptual hashing. It implements the function of retrieving speech segment and spoken term over encrypted speech database. Before uploading the speech to the cloud, it needs to embed the digital watermarks (perceptual hashing). In the retrieval process, it does not need search over encrypted speech data directly or decryption, but requires searching the system hash table. Experimental results show that the syllable-level perceptual hashing of the proposed scheme has good discrimination, uniqueness, and perceptual robustness to common speech. In addition, the proposed retrieval algorithm effectively improves the retrieval speed by reducing the matching number of query index. The precision ratio and recall ratio all achieve high under various signal processing.
Ecosystem carbon sustainability under different C-equivalence inputs and outputs in dry land
Authors: Hassan Asma , Lal Rattan , Ijaz Shehzada , Mehmood Ayaz
Published: September 2017

The efficient use of carbon is the principle goal of achieving the agricultural and environmental sustainability. Thus, study was aimed to compare the C-equivalence (Ceq) of inputs and outputs and the C index of sustainability (Is). Five cropping sequences were; fallow?wheat (FW, Triticum aestivum) (control), mungbean (Vigna radiata)?wheat (MW), sorghum (Sorghum bicolor)?wheat (SW) green manure?wheat (GW) and mungbean-chickpea (Cicera rietinum, MC). Tillage systems included moldboard 14 plough (MP), deep tillage (DT) and minimum tillage (MT). The primary data collected were crop yield and the above-ground biomass. Fuel utilization in MP was 15.2 kg Ceq ha-1 with two ploughing per year, C input was 30.4 kg Ceq ha-1. In DT it was 11.6 kg Ceq ha-1. Herbicide used based input was 27.3 kg Ceq ha-1. The Ceq of outputs differed among tillage treatments, and were: 135, 112 and 80.47 kg Ceq ha-1 for MP, DT and MT, respectively. On the average of two years, the highest grain Ceq was measured under MP and under SW in winter (1040 kg Ceq ha-1). The maximum Ceq biomass was estimated in winter with MC (2867 kg Ceq ha-1). However, the highest root Ceq under MT was calculated in winter with MW (9500 kg Ceq ha-1). Under MT, the maximum Is was obtained with MC for both years in summer (77 and 130). In winter of the second year, the highest Is was estimated for FW (82). These results showed that the efficient use of fertilizers, herbicides and farm machinery in the field under MT, with legume based cropping system, could be the best option to enhance the carbon Is in dry lands.
Risk Factors for Severe Hypoglycemia in Black and White Adults With Diabetes: The Atherosclerosis Risk in Communities (ARIC) Study
Authors: Lee Alexandra K. , Lee Clare J. , Huang Elbert S. , Sharrett A. Richey , Coresh Josef , Selvin Elizabeth
Published: September 2017

OBJECTIVE

Severe hypoglycemia is a rare but important complication of type 2 diabetes. Few studies have examined the epidemiology of hypoglycemia in a community-based population.

RESEARCH DESIGN AND METHODS

We included 1,206 Atherosclerosis Risk in Communities (ARIC) Study participants with diagnosed diabetes (baseline: 1996–1998). Severe hypoglycemic events were identified through 2013 by ICD-9 codes from claims for hospitalizations, emergency department visits, and ambulance use. We used Cox regression to evaluate risk factors for severe hypoglycemia.

RESULTS

The mean age of participants was 64 years, 32% were black, and 54% were female. During a median follow-up period of 15.2 years, there were 185 severe hypoglycemic events. Important risk factors after multivariable adjustment were as follows: age (per 5 years: hazard ratio [HR] 1.24; 95% CI 1.07–1.43), black race (HR 1.39; 95% CI 1.02–1.88), diabetes medications (any insulin use vs. no medications: HR 3.00; 95% CI 1.71–5.28; oral medications only vs. no medications: HR 2.20; 95% CI 1.28–3.76), glycemic control (moderate vs. good: HR 1.78; 95% CI 1.11–2.83; poor vs. good: HR 2.62; 95% CI 1.67–4.10), macroalbuminuria (HR 1.95; 95% CI 1.23–3.07), and poor cognitive function (Digit Symbol Substitution Test z score: HR 1.57; 95% CI 1.33–1.84). In an analysis of nontraditional risk factors, low 1,5-anhydroglucitol, difficulty with activities of daily living, Medicaid insurance, and antidepressant use were positively associated with severe hypoglycemia after multivariate adjustment.

CONCLUSIONS

Poor glycemic control, glycemic variability as captured by 1,5-anhydroglucitol, kidney damage, and measures of cognitive and functional impairments were strongly associated with increased risk of severe hypoglycemia. These factors should be considered in hypoglycemia risk assessments when individualizing diabetes care for older adults.
MINERÍA RURAL EN COLOMBIA: EL PARAÍSO DE LA LEGALIDAD Y LA ILEGALIDAD
Authors: Pérez Margarita María Osorno , Betancur Angie Vargas
Published: September 2017

La expansión de la industria minera en Colombia, se ha llevado a cabo en el marco de sus entornos rurales, los cuales son altamente propicios para la ejecución de dicha labor debido a sus características en cuanto a distanciamiento de la sociedad civil y riqueza natural, situación que ha desencadenado un conjunto de modificaciones en cuanto al dinamismo social, cultural y territorial de este tipo de zonas debido a las modificaciones “impuestas” en la mayoría de los casos no solo por parte del Estado por medio de la titulación de áreas mineras, sino también de parte de actores armados al margen de la ley, quienes a su vez, han visto esta actividad una opción rentable y beneficiosa en cuanto al recaudo de ingresos para su sostenimiento. El presente documento, pretende relacionar la incursión de la industria minera con la expansión de los grupos armados al margen de la ley en territorios rurales; lográndose a través de una revisión literaria, de carácter reflexivo y analítico. Teniendo como principal resultado el desplazamiento forzado, la pérdida de tierras, detrimento cultural, la expropiación de derechos y patrimonio de las comunidades rurales que viven en zonas de interés extractivo. Es importante mencionar la gran ventaja que se evidencia han alcanzado las estructuras criminales en el marco del “boom minero” y la debilidad institucional del gobierno para afrontar esta serie de problemáticas que se han venido evidenciado tras la penetración de la minería en la nación.
EXPERIENCIAS DEL BRANDING COMO ESTRATEGIA PARA EL POSICIONAMIENTO EN EL MERCADO INTERNACIONAL.
Authors: Bastos Osorio Liliana Marcela , Mogrovejo Andrade Johanna Milena , Gómez Mina Lucy
Published: September 2017

Este trabajo tuvo por objetivo central realizar una reflexión sobre las estrategias del Branding que han sidoaplicadas desde los diferentes énfasis: económico, deportivo y educativo, con el fin de posicionar una marca anivel nacional e internacional. Se hizo una revisión documental y bibliográfica del concepto de autores comoRob Frankel e Interbrand y de los diferentes estudios realizados aplicando las estrategias del Branding,Palacio y Urbina (2014), Brill Ramírez, y Pradenas, (2007) y Lema y Peláez (2009). Las principales conclusionesencontradas se tiene que con la implementación del Branding algunas empresas y sectores tienden a lainternacionalización con la utilización de una marca. Es así que al observar el caso de la ciudad de San José deCúcuta, con el desarrollo de la marca representativa del sector marroquinero se trató de destacar laimportancia que tiene una marca apropiada, la cual permitirá la difusión de conceptos claros a través de losatributos y valores que posee el sector marroquinero de la ciudad.Palabras claves: Branding, Marca, Mercado Internacional
ANÁLISIS DE CRECIMIENTO Y DESARROLLO DE GRUPO MÉXICO EN LA INDUSTRIA MINERA
Authors: Wong Dan Ángel Tomás , Vargas-Hernández José G.
Published: September 2017

El objetivo de esta investigación es analizar las estrategias que ha tomado Grupo México para ser la minera másgrande de México, el principal productor de cobre del país y cuarto a nivel mundial. A partir de su fundación en1964, Grupo México ha crecido a una gran velocidad, actualmente es unas de las empresas líderes en la industria dela construcción, de transporte y minera. En este trabajo se utilizará algunas teorías de organización industrial ymicroeconómico como el índice de Herfindahl y un modelo econométrico de Cobb-Douglas. Al final se podráobservar que la antigüedad de ciertos grupos mineros han dado ventajas productivas sobre sus competidores, tal esel caso de Grupo México.
IDENTIFICACIÓNPOR FILTRO DE KALMANY CONTROL ADAPTATIVO POR REALIMENTACIÓN DE ESTADOS DE UN PUENTE DE GRÚA
Authors: Gutiérrez Pablo Andrés Muñoz , Lindo Víctor Eduardo Ardila , Gutiérrez Pablo Andrés Muñoz
Published: September 2017

En este artículo, se estudian técnicas de identificación y controlen espacio de estado multivariable a nivel de simulación. Aplicadas a la planta puente de grúa Feedback Digital Pendulum Mechanical Unit, siendo este un sistema mecánico subactuado menor número de entradas que salidas). Realizando identificación multivariable por el método de Kalman y el sistema de control adaptativo por realimentación de estados.
MODELO DE DESARROLLO ÁGIL DE UN “CLOUD ERP” PARA LAS PEQUEÑAS Y MEDIANAS EMPRESAS (PYMES) DE NORTE DE SANTANDER
Authors: Vera R Fredy H. , Perez G Boris R.
Published: September 2017

En este artículo se propone un modelo que establece las fases, métodos, procedimientos y herramientas necesarias para estructurar y controlar el desarrollo de un ERP en la nube para las PYMES (Pequeñas y medianas empresas) de Norte de Santander. Este trabajo se realizó en 4 fases: primero se realizó una fundamentación teórica, luego una revisión de las metodologías de desarrollo ágil y por último se plantea el modelo de desarrollo ágil propuesto para la creación del ERP para las PYMES. Palabras clave: Cloud ERP, computación en la nube, desarrollo ágil, desarrollo de software basado en componentes.
GESTIÓN DE ALCANCE EN PROYECTOS DE DESARROLLO DE VIDEOJUEGOS
Authors: Mendoza Gáfaro Richard Eliseo , Rojas Contreras Mauricio , Esteban Villamizar Luis Alberto
Published: September 2017

Este artículo se hace un estudio de las principales técnicas y procedimientos que se emplean actualmente en la Gestión de Alcance de los proyectos de software. Se analiza cómo se realiza este proceso en el proyecto JUDEN Juego del Dengue y de la Facultad Salud de la Universidad Pamplona. Finalmente define la importancia que tiene este proceso para el desarrollo de software y se propone un modelo para realizar la gestión del alcance en los proyectos de desarrollo de videojuegos. Palabras clave: Gestión de la alcance, proyectos, videojuegos.
SISTEMA DE CONTROL ACTIVO RESONANTE INTEGRAL PARA VIBRACIONES EN UNA VIGA EN VOLADIZO
Authors: Moreno García Francisco Ernesto , Ramirez-Mateus Jhon J. , Cárdenas Lindarte José Alejandro
Published: September 2017

El presente trabajo se implementa un controlador resonante integral para la atenuación del primer modo de vibración de una estructura flexible tipo viga en voladizo. El controlador se implementa mediante un circuito electrónico analógico y se utilizan actuadores piezoeléctricos. Se presenta el proceso de acondicionamiento de la señal de aceleración utilizada, la sintonización del controlador y finalmente se exponen los resultados obtenidos experimentalmente, donde se observa una disminución en el tiempo de estabilización superior al 50% con respecto al tiempo del sistema no controlado.Palabras clave: Control resonante, viga en voladizo, control activo de vibraciones
ANÁLISIS DE EVENTOS SOBRE TRANSFORMADORES DE DISTRIBUCIÓN EN UNA EMPRESA DEL SECTOR ELÉCTRICO EN COLOMBIA
Authors: López Guayasamin Mónica Rosa , Castrillón Omar Danilo , Cano Eduardo
Published: September 2017

Este trabajo desarrolla una metodología para el análisis de eventos utilizando la herramienta estadística R, sobre algunos dispositivos de la red eléctrica en una empresa del sector, de los cuales se tienen registradas las novedades de eventos presentados tanto programadas como no programadas en un periodo de tiempo.Palabras clave: Calidad del servicio, patrones, eventos, transformadores.
MANO ROBÓTICA COMO ALTERNATIVA PARA LA ENSEÑANZA DE CONCEPTOS DE PROGRAMACIÓN EN ARDUINO
Authors: Niño Vega Jorge Armando , Martínez Díaz Lina Yormary , Fernández Morales Flavio Humberto
Published: September 2017

En este trabajo se presenta el desarrollo de una mano robótica, explicando cuales son las partes principales que conforman el prototipo. El diseño se realizó en AutoCAD y SolidEdge, programas que permitieron dimensionar la estructura mecánica. El control electrónico se efectuó a través de una tarjeta Arduino, la cual permite leer el estado de los sensores, flexorresistencias en este caso, a la vez que genera las señales para controlar los servomotores responsables del movimiento. En una primera aproximación se construyó una versión de bajo costo, con materiales reciclados, la cual permitió validar el diseño propuesto. La versión final se construyó con materiales disponibles comercialmente, dando como resultado un prototipo didáctico que puede ser utilizado como herramienta motivadora para el aprendizaje de programación en Arduino. Palabras clave: Mano robótica, Arduino, programación, enseñanza de tecnología.
PROMOTING STUDENTS’ EXPLICIT INFORMATION SKILL IN READING COMPREHENSION THROUGH GRAPHIC ORGANIZERS
Authors: Darmawan Syaifudin Latif
Published: September 2017

This research is carried out to (1) identify whether graphic organizers can improve students’ reading comprehension; and (2) to describe the classroom situation when graphic organizers are employed in instructional process of reading comprehension. The research is adminisitered in two cycles 2014 in the second grade of SMP Muhamadiyah Sekampung, Lampung Timur. The procedure of the research consists of identifying the problem, planning the action, implementing the action, observing the action, and reflecting the result of the research. Qualitative data are collected through interview, observation, questionnaire, and research diary. Quantitative data are collected through test. To analyze qualitative data, the researcher used constant comparative method. It consists of four steps: (1) comparing incidents applicable to each category; (2) Integrating categories and their properties; (3) delimiting the theory; (4) Writing the theory. Meanwhile, to analyze quantitative data, the researcher employed descriptive statistic.    The result of the research shows that using graphic organizers can improve students’ reading comprehension and classroom situation. The improvement on students’ reading comprehension is students are able to find explicit information in a text. The improvement of the classroom situation; (a) students come on time in the class (b) students are more motivated to join the class (c) Students pay more attention in the instructional process. In addition, the improvement also happens to the scores. The mean score increases from 57.56 in the pre-test, 63.34 in the formative test of cycle 1, and 69.56 in the post test of cycle 2
USING STORYTELLING TO INCREASE SPEAKING PERFORMANCE OF PAI STUDENTS OF MUHAMMADIYAH UNIVERSITY OF METRO
Authors: Latif Amirudin -
Published: September 2017

The study is intended to increase speaking performance of PAI students of Muhammadiyah University of Metro by using storytelling. The design of the research is collaborative classroom action research which involves a collaborator in whole process of the research. The instruments of the research are observation sheet, field notes, and speaking test. The criteria of success of the research are 100% from thirty students are active in the classroom and get score equal to or more than 70. The result shows that twenty two students get score 70 in Cycle 1 and thirty in Cycle 2.
THE INFLUENCE OF LISTENING SONG TOWARD STUDENTS’ PRONUNCIATION ABILITY AT THE ELEVENTH GRADE STUDENTS OF SMA MUHAMMADIYAH 2 METRO
Authors: - Andianto -
Published: September 2017

The objective of the research is to examine whether there is a significant influence of listening song towards students’ pronunciation ability at the eleventh grade students of SMA Muhammadiyah 2 Metro. The method applied in this research was an experimental study. It was conducted at the eleventh grade students of SMA Muhammadiyah 2 Metro which contains two classes. The Sample is XI IPA chosen by using cluster random sampling. The data were analyzed by using independent T test (SPSS 17). Based on the data analysis, there is a research finding that can be drawn as “there is a significant influence of listening toward students’ pronunciation ability. Listening song can give a positive effect toward students’ pronunciation ability.
THE AFFECTING FACTORS ADDRESSED IN EFL ESSAY CLASS OF UM METRO LAMPUNG IN RESPECT TO THE STUDENTS’ PERCEPTION AND THE LECTURER’S REFLECTION
Authors: - Dedi Turmudi
Published: September 2017

This research paper discusses a number of key points addressed in teaching essay writing course of EFL class in Indonesia. The lecturer applied some various techniques in teaching, including a new proposed technique called FBFRP technique (Turmudi 2013) which basically leads to assist learners in self regulatory process in writing composition ( Magno, 2009). Research goals were to disclose some critical points and to what extents of each point was qualified compared among the addressed issues. This research was a descriptive reflective expose-facto and the primary data was taken with instruments: tests, reflection, and questionnaires resulting a descriptive qualitative with quantitative data output. The subjects or participants were 100 undergraduate students of English Department enrolled at essay writing class and the objects were the students’ responses on the addressed points formatted in a rating scale questionnaire (Sugiono, 2009).The data analysis was first hand data as exposed-facto data which was processed through a set of procedures.  No statistical inferences were reported but descriptive statistics and logical inferences. The result turned out that none of all components were dominants; but a certain technique as medium to assist the students’ ability to write computer-based-essay test was needed to develop. Thus, this research has the same red thread with that of Magno (2009) hypothesizing that learners of EFL tend to use specific approach to learning and eventually undergo self regulatory process.
SWEARWORDS USED BY BENGKULUNESE: A CASE STUDY OF TABOO EXPRESSIONS
Authors: - Merry Rullyanti
Published: September 2017

Swearwords are natural part of our language. They are used as the most healing way to throw away some extra frustration or anger in a difficult situation. Anderson  lists  three  different  motives  for swearing:  psychological  motives, social motives and linguistic motives.  The primary aim in this research is to find out swearwords that are commonly used by Bengkulunese people and the most frequent motives behind them. There are 20 Bengkulunese people as the participants of this research who filled in questionnaire. The questionnaire contained a table which consisted of two columns. The first is the swearwords column and the second one is the circumstances of the occurred swearwords which must be filled in by the participants completely. Based on the swearwords gained from the participants, there are 43 swearwords that are generally used by them in their daily speaking activity. Some of them are still in Indonesian language version and some other swearwords are from Bengkulunese language version. For example the word “sialan” and “kurang ajar” are Indonesian languages that are still understood by those who are not Bengkulunese, while the word “sea’”, “bigal”, or “cuk mak” are based from Bengkulunese language.
A CRITICAL THOUGHT OF INSTRUCTIONAL STRATEGY: DEVELOPING ANALYTICAL CAPABILITY OF AUTOMOTIVE STUDENTS BY MANAGING MORE APPLICABLE MOVIE FRAGMENTS, POWER POINT, AND INTERACTIVE TEST
Authors: - Agus Riyanto
Published: September 2017

What most sensed about Technical High School (known as SMK) students is their lack of analytical capability. As their nature of academic orientation is aimed at job fullfillment, the students are enhanced to follow Standard Operational Procedure (SOP) without questioning why such SOP should be followed. As for automotive students, they simply following the steps of doing things related to any activities of repairing car and other mechanical work required just because the job will be done well when the procedure completed.  This kind of mentality “following order or SOP” fits to those who only want to be workers not the men who take higher responsibilities. The progress of automotive technology demand on understanding the concept of how some system used in a car. Failure to comprehend to concept will jeopardize the performance of a car. At the same time, the progress of automotive technology is also propelled by the progress of information technology which provides more open resources that can be used to promote the quality of instuctional process.  Realizing that having analysis compentence is terribly important to run higher responsibilites and continuing education to a university, automotive students need to learn how to analyze. To promote this, teacher can use some automotive movies or animations and then chop them into many fragments related to instructional objectives. The way how the teachers arrange and present the fragments can be combined into power point and ended up with an interactive test with different model of methods, strategies, or techniques. Movies, movie cutter application, interactive test Creator ,  paint into fragments can be obtained freely from the internet.The using of movie fragments integrated into power point, arrange the fragment into various strategies, ended up with interactive test will likely focus the students into more realistic understanding toward the concept taught in the classroom. In return the students will be accustomed to analyze each fragment to building comprehension of concept underlying the skill required in automotive work.
THE EFFECTIVENESS OF PEER FEEDBACK TECHNIQUE TO TEACH WRITING VIEWED FROM STUDENTS’ CREATIVITY
Authors: - Andianto -
Published: September 2017

The objectives of the research are to examine whether: (1) Peer Feedback Technique is more effective than Teacher Feedback Technique to teach writing for the tenth grade students of SMA Muhammadiyah 1 Metro; (2) the students having high creativity have better writing ability than those having low creativity for the tenth grade students of SMA Muhammadiyah 1 Metro; and (3) there is an interaction between teaching techniques and students’ creativity to teach writing for the tenth grade students of SMA Muhammadiyah 1 Metro. The method applied in this research was an experimental study. It was conducted at the tenth grade students of SMA Muhammadiyah 1 Metro. It consists of six classes. The Samples were two classes of six classes chosen by using cluster random sampling. Each class was divided into two groups (the students having high and low students’ creativity). The data were analyzed by using Multifactor Analysis of Variance (ANOVA) test of 2 x 2 and Tuckey test. Based on the data analysis, there are some research findings that can be drawn. They are (1) Peer Feedback Technique is more effective than Teacher Feedback Technique to teach writing for the tenth grade students of SMA Muhammadiyah 1 Metro; (2) the students having high creativity have better writing ability than those having low creativity; (3) there is an interaction between teaching techniques and students’ creativity to teach writing in which Peer Feedback Technique is more appropriate to teach writing for students having high creativity and Teacher Feedback Technique is more appropriate to teach writing for students having low creativity. In short, the effect of teaching technique depends on students’ creativity.