bluuebunny/crossref_metadata_2025 huggingface dataset:
AN EXPLORATION OF HIGH SCHOOL LEARNERS’ UNDERSTANDING OF GEOMETRIC CONCEPTS
Authors: Ngirishi Harrison , Bansilal Sarah
Published: February 2019

There is much concern in South Africa about the poor performance of learners in mathematics, particularly in geometry. The aim of this research was to explore the understanding of basic geometry concepts by grade 10 and grade 11 learners in terms of the van Hiele’s levels of geometry thinking. The participants of the research were 147 learners from three high schools in a rural area in the south of KwaZulu Natal, South Africa. The results showed that the learners had difficulties with problems involving definitions of geometric terms, interrelations of properties and shapes, class inclusion and changing semiotic representations. It was also found that most of the learners were operating at the visual and the analysis levels of the van Hiele levels of geometric thinking. It is recommended that teachers should provide learners with tasks that require movements between semiotic representations, and to also focus attention on improving learners’ skills in proving aspects of mathematical relations. Keywords: geometry, high school, van Hiele theory, class inclusion, mathematical proof, necessary and sufficient conditions.
THE RELIABILITY OF STUDENTS’ EVALUATION OF TEACHING AT SECONDARY SCHOOL LEVEL
Authors: Ogbonnaya Ugorji I.
Published: February 2019

The Student Evaluation of Teaching (SET), although controversial, is a common practice at the higher education level for faculty appraisals and promotions, but seldom at secondary school level. Concerns have been raised as to whether students are informed and experienced enough to evaluate teachers’ teaching practices in a reliable way and arrive at valid outcomes. The purpose of this research was to explore the reliability of students’ evaluations of mathematics teaching at secondary school level. This research involved eight teachers, and 194 Grade 11 students from eight secondary schools in Bojanala District, North West province in South Africa. A SET questionnaire was developed, validated and used for data collection. The data were analysed by calculating the average deviation index of the students’ evaluations of each teacher per item and the Intraclass Correlation Coefficient (ICC) with SPSS. This was done using one-way random effects, absolute agreement and a multiple raters/measurements model. Both the ADI and ICC values showed a high degree of reliability of the SET. Hence, SET at secondary school level may provide a reliable indication of teachers’ educational practices that might be used for the formative assessment of teachers’ instruction. It can also assist in designing teacher training programmes for pre-service teachers and professional development programmes for in-service teachers. Keywords: Average Deviation Index, Intraclass Correlation Coefficient, reliability of SET, secondary school, student evaluation of teaching (SET).
Sistema informático de apoyo a la toma de decisiones en los servicios de restauración de la red hotelera en Cuba
Authors: Ynfante Martínez. Maday , Díaz Vasallo Asiel , Vázquez Alfonso Yasser , Velasteguí López Luis Efraín
Published: February 2019

La calidad de los servicios de la red hotelera en Cuba es un elemento imprescindible para garantizar la satisfacción de los turistas que llegan al país. En este trabajo se elaboró un sistema informático para detectar el nivel de satisfacción de los servicios de alimentos y bebidas. Para ello se analizó la información almacenada en las bases de datos referente a las encuestas realizadas a los turistas, con el propósito de extraer conocimiento mediante la aplicación de técnicas de minería de datos.

El sistema, además de gestionar los datos, muestra visualizaciones gráficas referentes al comportamiento de los indicadores de satisfacción, proporcionándole a los analistas una mayor comprensión de la información. Por último, se abordan temas relacionados con el software propuesto en esta investigación y se comparan los resultados arrojados por el mismo con los ofrecidos por WEKA.
Cristalización del jarabe de azúcar orgánica
Authors: Merino Córdova Patricio Alejandro , Abarca Córdova Shakespeare Agustín , Estupiñan Cox Byron Fabricio , Izquierdo García Daniel Eriel
Published: February 2019

La sostenibilidad de la producción de caña de azúcar por parte de pequeños agricultores en Mauricio está seriamente en riesgo debido a varios factores. Estos incluyen: un aumento en los costos de producción y una menor rentabilidad causada por la caída en el precio internacional del azúcar. La situación está empeorando, dando lugar a un abandono o conversión generalizada de tierras, con consecuencias sociales, económicas y ambientales para las comunidades locales.
Estrategias para mitigar el riesgo de lavado de activos en sectores empresariales del Ecuador
Authors: Vergara Cuadros Yadira Natalia , Egas Moreno Fanny Graciela , Cifuentes Luz Marina , Troya Loor María Angélica
Published: February 2019

Son muchos los mecanismos para lavar activos, no solamente en nuestro país, sino a nivel mundial. Estudios realizados indican que el lavado de activos alcanza aproximadamente USD 320 000 millones en el mundo, de los cuales USD 150 000 millones estarían en América Latina.

Esta investigación se basa en  plantear estrategias para reducir el riesgo de lavado de activos en los sectores económicos vulnerables del Ecuador mediante la implementación de procedimientos de debida diligencia, puesto que el crimen organizado es muy ingenioso al determinar nuevas formas para delinquir, esto hace que diversos sectores económicos sean vulnerables y que surja la necesidad de contar con la habilidad suficiente para detectar, prevenir y mejorar su sistema operativo y sus prácticas empresariales. La globalización, la economía a nivel mundial, la facilidad en las comunicaciones y movilización, las relaciones y la creciente interdependencia económica entre países, ha atraído como consecuencia mayores oportunidades para lavar dinero y tratar de legitimar toda clase de fondos ilegales. Las empresas que son utilizadas para ejecutar este crimen, sufren desenlaces muy fuertes, así como también sus accionistas, directivos y empleados y en el peor de los casos puede causar su cierre y consecuentemente la desaparición del negocio.
Influencia de la cultura organizacional en el sistema de gestión de calidad: Estado del arte.
Authors: Sanabria Estrada Francisco Rodrigo , Vergara Apolinario Mary , Santacruz Mora Mario , Lucin Borbor Jorge Manuel
Published: February 2019

La cultura de la calidad es una herramienta corporativa que se ha estudiado a partir de la década de los 80, por ello se planteó el objetivo de determinar la influencia de la cultura organizacional en el Sistema de Gestión de Calidad, de acuerdo a un análisis comparativo en el tiempo, que tomó como referencia el estado del arte de otros estudios relacionados con el presente. Se aplicó metodología de la revisión bibliográfica, cuyos resultados evidenciaron que un vínculo directa y esencial entre la cultura organizacional que incentiva y genera que los colaboradores por su propia voluntad contribuyan con la implementación de los sistemas de gestión de la calidad en el estado del arte comprendido entre la segunda década del siglo XXI, porque ambas evolucionaron en el mismo periodo de tiempo. Se concluyó entonces, que ambas variables están asociadas y permiten alcanzar la máxima satisfacción de los clientes y de las demás partes interesadas.
El liderazgo educativo y el desempeño docente: un estudio etnometodológico de la realidad ecuatoriana
Authors: Del Salto Zurita Vanessa Aracelly , Fernández Lara Ana Isabel , Pachar Puga Mónica del Carmen
Published: February 2019

La presente investigación es el resultado de la necesidad de dar solución a una problemática que actualmente atraviesa el sector educativo, por esta razón, el presente trabajo ha sido diseñado con el fin de capacitar y guiar a los docentes en su capacidad de liderazgo dentro del ejercicio diario. Para el desarrollo de esta investigación se observaron las técnicas de recolección de datos partir de la contextualización en el ámbito educativo, permitiendo definir tres categorías que conforman el campo de representación: a) liderazgo educativo; b) desempeño docente y, c) objetivos planteados, a través de las cuales se pretende hallar o evidenciar una gran cantidad de procesos en el desempeño del liderazgo docente que pueden ser: ineﬁcaces, errados, ambiguos, inadecuados o incongruentes dentro de la institución educativa y de esta manera proporcionar estrategias para corregirlos y solucionarlos
The link between Cardiovascular Disease and Stroke
Authors: Mahmood Manzoor , Hoque Harisul
Published: February 2019

Abstract not available

University Heart Journal Vol. 14, No. 2, Jul 2018; 45
Short Term Outcome of Off Pump Coronary Artery Bypass Grafting in Patients with Low Ejection Fraction
Authors: Salekin Mohammad Serajus , Sazzad Md Faizus , Nahian Syed Al , Mohammad Musa Sumsul Arif , Alam Mohammed Rabbikul , Choudhury Dewan Iftakher Raza , Adhikary Asit Baran
Published: February 2019

Coronary artery disease is increasing in developing countries. Revascularization surgery in such patients with amenable coronary anatomy is a valid option. Coronary artery bypass grafting in patients with low ejection fraction (EF <35%) is very challenging although it is performing successfully in department of Cardiac Surgery of Bangabandhu Sheikh Mujib Medical University now a days. The purpose of this study is to evaluate the safety and effectiveness of off pump coronary artery bypass grafting for EF e”35% and EF <35% and also to compare between pre and postoperative echocardiographic findings in this two groups. The preoperative, at discharge, 1 month and 3 month postoperative follow up data of total 60 patients in two groups ( EF e”35% and <35%) who underwent isolated off pump coronary artery bypass grafting between July 2012 – June 2014 was evaluated. In group 1 preoperative LVIDd and LVIDs was 54.86±3.45 mm and 45.23 ±4.13mm and LVEF was 42.7±4.66. Postoperatively at 3 month follow up the LVIDd 45.43±5.03 mm, LVIDs 34.7±5.33 mm and LVEF 53.46±5.06. The improvement of mean LVIDd and LVIDs is statistically significant (p<0.001) and (p<0.05) respectively. But improvement of LVEF is not statistically significant (p>0.05). Similarly in group 2 patients preoperative LVIDd, LVIDs and LVEF is 67.06±3.67mm, 59.1±4.35mm and 29.26±4.25. Postoperatively at 3 months follow up of this group the LVIDd, LVIDs and LVEF is changed to 57.56±4.96 mm, 48.3±5.53 mm and 38.93±6.03. The improvement of mean LVIDd and LVIDs is statistically significant (p<0.001) and (p<0.05) respectively. And the improvement of LVEF is also statistically significant (p<0.001). Significant improvement in terms of CCS grade and NYHA class was also observed specially in <35% ejection fraction group at 3moths follow up. We concluded that off pump coronary artery bypass grafting can be safely performed to the patients with normal and poor left ventricular ejection. Hence we recommended that off-pump CABG can be safely carry out in case of <35% ejection fraction patients.

University Heart Journal Vol. 14, No. 2, Jul 2018; 53-61
Cleveland Clinic Socre – What is the Role of a Novel Prognostic Treadmil Score to Diagnose Coronary Artery Disease?
Authors: Alam Md Mashiul , Rahman Md Mukhlesur , Parvin Tanjima , Ahmed Khurshed , Zaman SM Mustafa , Banerjee Sajal Krishna , Ahsan Sayed Ali , Hoque Harisul , Bajracharya Prashant , Rashed Md Rakibul Hasan
Published: February 2019

Background: Ischemic heart disease is increasing all over the world even in the developing countries like Bangladesh. The incidence rate of coronary artery disease is escalating very rapidly among both male and female population in our country. Though exercise treadmill test (ETT) is a well accepted non-invasive investigation to diagnose Coronary Artery Disease (CAD), it has a high false positive and false negative result if ST segment response alone is calculated for interpretation of the test. Accuracy of different treadmill scores in our population is largely unknown. Clevelan Clinic Score is a prognostic ETT score which is validated for prognostic indication but may have some diagnostic value as well.

Objective: To know the diagnostic role of Cleveland Clinic Score, currently which has only prognostic implication. Method: A Cross-Sectional study was carried out on patients attending University Cardiac Center in Bangabandhu Sheikh Mujib Medical University (BSMMU) for stable chest pain to find out the accuracy of Cleveland Clinic Scores (CCS) in comparison to other diagnostic treadmill scores namely Duke Treadmill Score (DTS) and Simple Treadmill Score (STS).Total 130 persons including male and female who have undergone ETT were included according to inclusion and exclusion criteria. Coronary angiogram reports were collected after the procedure was performed as per clinical practice. The accuracy of ST segment response & different treadmill scores were calculated and compared with each other.

Result: ETT scores had better sensitivity and specificity than ST segment response which was affected by workup bias more. CCS, DTS and STS have 83.3% & 60.9%; 71.4% & 71.7%; 64.3% & 78.3% sensitivity & specificity, respectively. Receiver Operator Characteristics (ROC) curve analysis showed all of the three scores have similar area under curve (AUC) that means they have similar accuracy to diagnose CAD. But they have different sensitivity and specificity for different cut off value. Overall analysis showed accuracy of STS (83.9%) is comparable to that of DTS (83.3%), CCS (77%) .

Conclusion: Among the three treadmill scores Cleveland Clinic Score has comparable predictive accuracy when compared with DTS, STS. Though a prognostic ETT score, CCS may have diagnostic role which need to be validated further.

University Heart Journal Vol. 14, No. 2, Jul 2018; 62-66
Significance of ST Segment Elevation in Lead aVR in Patients with Non-ST Elevation Acute Coronary Syndrome
Authors: Gachchhadar Pritam Kumar , Mahmood Manzoor , Adhikary Dipal Krishna , Chowdhury MSI Tipu , Sultan Md Ashraf Uddin , Mandal MRM , Md Iqbal Khaled , Banerjee Sajal Krishna
Published: February 2019

Background: As acute occlusion of the left main (LM) artery causes life-threatening hemodynamic deterioration and malignant arrhythmias, resulting in an adverse outcome, a rapid diagnosis and subsequent urgent revascularization with percutaneous coronary intervention (PCI) or coronary bypass surgery is very important in this subset of patients. The 12-lead electrocardiogram (ECG) is a crucial tool in the diagnosis and risk stratification of acute coronary syndrome (ACS). Unlike other 11 leads, lead aVR has been long neglected until recent years.

Objective: To determine the accuracy of 12-lead electrocardiography in predicting left main and/or triplevessel disease in patients with non-ST elevation acute coronary syndrome (NSTE- ACS). Methodology: This cross sectional observational study carried out among patients presenting with non-ST elevation acute coronary syndrome at Cardiac Emergency Department or CCU of BSMMU. This study was conducted from May 2017 to April 2018. A total of 36 patients meeting the eligibility criteria were consecutively included. Data collection was carried out by using a questionnaire. Informed written consent was obtained from the hospital authority. Analysis of data was finally done with Statistical Package for Social Science program 17 version of computer on the basis of different variables.

Result: As ST-segment elevation in lead aVR is a continuous variable, a suitable cut-off for ST- elevation in lead aVR was found out for diagnosing LM and/or triple vessel disease (TVD) using ROC curve. The cut-off value was 0.75 mm which gave us an optimum sensitivity of 88.5% and a specificity of 80% with an area under the curve being 0.892(95% CI = 0.785-1.000), p < 0.001. The area under the curve demonstrated that 89.2% of the LM and/or TVD were correctly diagnosed with ST elevation e” 0.75 mm in lead aVR in patients with non-ST segment elevation acute coronary syndrome. The positive predictive value was commendably high (92%) and negative predictive value was no less (72.7%) with an overall diagnostic accuracy of 86%.

Conclusion: From the findings of the study it can be concluded that ST- segment elevation e”0.75 mm in lead aVR in patients of non-ST segment elevation acute coronary syndrome had optimum sensitivity and specificity with an appreciably high overall diagnostic accuracy. The ST- segment elevation e”0.75 mm in lead aVR in patients with non-STE-ACS can differentiate LM and/or triple vessel disease with fair degree of accuracy.

University Heart Journal Vol. 14, No. 2, Jul 2018; 71-76
Цивілістичні категорії доби інформаційного суспільства у національній доктрині приватного права: правовідносини
Authors: ХАРИТОНОВ ЄВГЕН , Харитонова Олена
Published: February 2019

Формування інформаційного суспільства означає не тільки проголошення інформації домінуючою цінністю, визнання переваг інформаційних технологій тощо, а й внаслідок їхнього пануючого статусу зумовлює необхідність перегляду розуміння низки категорій приватного права, і на такому підґрунті – засад правового регулювання відносин між його учасниками. Однією з базових цивілістичних категорій є правовідносини. Звідси випливає необхідність дослідження сучасного стану їхньої концепції та трансформацій останньої як відповіді на виклики інформаційного суспільства розумінню традиційних приватноправових цінностей, а отже, і доктрині приватного права. Метою статті є аналіз сформованих у приватноправовій доктрині засад розуміння категорії цивільних правовідносин та окремих її аспектів, визначення проблем, що виникають у цій галузі у зв’язку з формуванням інформаційного суспільства, викладення власного бачення шляхів їхнього вирішення, а також перспектив трансформації вітчизняної доктрини приватного права у відповідній галузі з розглянутих питань. Встановлено, що вітчизняна доктрина приватного права у процесі розробки Цивільного кодексу України (ЦК України) та застосування його норм виробила за-гальну теорію регулювання цивільних відносин, а також ґрунтовні теоретичні положення стосовно окремих елементів цивільних правовідносин (суб’єкти, об’єкти, цивільні права та обов’язки, підстави їхнього виникнення та реалізації). Однак правові аспекти розвитку та трансформації як категорії “цивільні правовідносини”, так і окремих її елементів потребують подальшого дослідження з урахуванням реалій формування та буття інформаційного суспільства. Автори дійшли висновку, що відносини користування інформаційними технологіями та їхніми результатами за своєю сутністю є цивільними. І хоча вони можуть регулюватися з використанням як диспозитивного, так і імперативного методів, однак переважає приватноправовий підхід, що дає змогу вести мову про виникнення цивільних правовідносин у сфері ІТ до врегулювання останніх актами цивільного законодавства. Аналіз впливу реалій інформаційного суспільства на розуміння окремих елементів цивільних правовідносин дав можливість зробити висновки про розширення кола їхніх об’єктів завдяки ширшому розумінню категорії “інформація” та можливості включення до їхнього складу “віртуальних” об’єктів. Також обґрунтовується висновок про необхідність трансформації положень доктрини приватного права щодо суб’єктів цивільних відносин. Запропоновано включити до них “квазісуб’єкти”, до яких можуть бути віднесені “віртуальні організації”, а також вищі форми “штучного інтелекту”, котрі іноді фактично виявляються “нібито учасниками” деяких цивільних відносин. Зазначається, що вирішення цієї проблеми нині потребує перегляду відповідних положень національної доктрини приватного права, а з часом – внесення змін у ст. 2 ЦК України.
Partisipasi Masyarakat Terhadap Pelestarian Hutan Cagar Alam Di Kampung Saporkren Distrik Waigeo Selatan Kabupaten Raja Ampat
Authors: Irnawati Irnawati
Published: February 2019

Kawasan cagar alam memiliki potensi sumberdaya alam dan jasa lingkungan yang tinggi dan dapat dijadikan sebagai modal dasar pelaksanaa pembangunan Indonesia di masa yang akan datang. evaluasi kondisi komunitas hutan cagar alam di kampung Sapokren sangat berguna dalam mamantau proses regenerasi terhadap pelestarian Hutan Cagar Alam di Waigo Barat. Metode yang di pakai dalam penelitian ini adalah metode deskriptif dengan teknik observasi dan wawancara. Partisipasi masyarakat dalam pelestarian hutan cagar alam penelitian ini terdiri atas kemauan, kemampuan dan kesempatan yang dimiliki masyarakat untuk ikut serta dalam kegiatan partisipasi, Perilaku masyarakat tentang upaya pelestarian dapat dilihat dari motivasi responden mengikuti kegiatan penyuluhan yang dilakukan oleh pemerintah setempat yang mencapai 55%Â  dalam tingkat sukarela motivasi masyarakat yang ikut ambil bagian dalam menjaga dan melestarikan hutan cagar alam di Kampung Saporkren Distrik Waigeo Selatan.
Studi Karakteristik Dan Pengelompokan Jenis Tumbuhan Bawah Pada Areal Pusat Pengendalian Kebakaran Hutan Lindung Di KPHL Kota Sorong
Authors: Tanahitumesseng Brandon , Ponisri Ponisri , Nanlohy Lona
Published: February 2019

Penelitian ini bertujuan untuk mengetahui karakteristik dan pengelompokan jenis tumbuhan bawah di areal pusat pengendalian kebakaran hutan lindung di KPHL Kota Sorong. Jenis tumbuhan bawah pada areal Pusat Pengendalian Kebakaran Hutan Lindung di KPHL Kota Sorong ditemukan 8 (delapan) jenis dengan penyebaran paling dominan yaitu 4 jenis tumbuhan bawah adalah Alang-alang (Imperata cylindria) (25), Rumput Cakar Ayam ( Digitaria ciliaris) (23), Sentro (Centrosema pubescens) (18), dan rumput teki (Cyperus rotundus) (15). Sedangkan yang tidak mendominasi yaituÂ  Paku kijang (Phegopteris connectilis) (14) . Putri malu (Mimosa pudica) (11) , Rumput pait (Axonopus comperesus) Â (9) , dan Babandotan (Agretum conyzoides) (7). Jenis Tumbuhan bawah pada areal Pusat Pengendalian Kebakaran Hutan LindungÂ  di KPHL Kota Sorong memiliki karakteristik yang berbeda-beda sesuai dengan jenisnya dimana penyebarannya mulai dari 0,5 ha, 0,5-1 ha dan > 1ha.Â
Medios Alternativos de Medellín [1]: Recuento Histórico (1987-2006)
Authors: Valle Flórez Mónica María
Published: February 2019

En el artículo se hace recuento histórico del surgimiento de los medios alternativos en la ciudad de Medellín (1987-2006). La base informativa del texto se retoma del “Diagnóstico de los medios alternativos y comunitarios de Medellín”, adelantado por la Alcaldía de Medellín y ejecutado por la Caja de Compensación Familiar- COMFAMA- en el 2006; estudio en el que participó la autora en calidad de investigadora.

Ante la relevancia histórica, académica e investigativa del tema, se hace pertinente la difusión de algunos aspectos del estudio con dos artículos: En éste, se referencian los medios y la metodología llevada a cabo en el estudio.

En el segundo artículo se presentará la caracterización de cada uno de los medios estudiados: tipo de medio, periodicidad, públicos a los que están dirigidos y algunos aspectos de su sistema organizativo tales como: recursos humanos, técnicos y financieros. Es de indicar que del informe completo del estudio se editaron pocos ejemplares los cuales se distribuyeron exclusivamente entre los medios y entidades participantes de éste, lo que hace aún más relevante su difusión.
Análisis histórico-contable de una empresa molinera argentina. Su contexto económico, social y legislativo (1918-1947).
Authors: Carrizo Walter Orlando , Blanchod Patricia Edith , Casado Norma Esperanza , de Bernardi María Alejandra , Ferro Mónica Beatriz , Galián María Belén , Hammond Daiana , Trola Cristina Raquel
Published: February 2019

Este trabajo presenta resultados parciales de un proyecto de investigación avalado por la Universidad Nacional de la Patagonia San Juan Bosco -UNPSJB. Inicia exponiendo la situación problemática objeto de estudio, la descripción de los objetivos y la metodología del proyecto. Seguidamente, se expone el estado de situación de la investigación contable con perfil histórico y la ubicación espacio temporal de la institución en su contexto económico y legal. En el cuerpo central, se muestran los primeros resultados de la investigación: estado de situación de la práctica contable en el lugar y tiempo estudiado, y análisis del primer año de la contabilidad en la empresa. Finalmente, se expone el grado de cumplimiento de los objetivos planteados, así como ciertos interrogantes para el futuro desarrollo del proyecto.
Investigation of hydration and distribution of trifluoroacetophenone and its derivatives in hexane – aqua system
Authors: Matveichuk Yulya V.
Published: February 2019

UV spectrophotometric and chromatographic study of the distribution and hydration of trifluoroacetophenone (TFAF) and some its derivatives (  p-trifluoroacetyl benzoic acid heptyl ester (TFABAHE), p-methyltrifluoroacetophenone (  p-MTFAF), 2,4-dimethyltrifluoroacetophenone (DMTFAF), 2,4,6-trimethyltrifluoroacetophenone (TMTFAF)) in the hexane-water system, which models the polyvinyl chloride membrane of ion-selective electrodes was investigated. TFAF has a high solubility in water (distribution coefficient D is equal to 415) as compared with p-MTFAF, DMTFAF, TMTFAF and TFABAHE (D within 1360 –2700). Hydration occurs most strongly to TFABAHE and is especially strong in alkaline medium. It is established that p-MTFAF and TFABAHE form a crystalline hydrates.
Investigation of structural dynamics of substances using ultrafast electron diffraction and microscopy: (50th anniversary of the Institute of Spectroscopy, Russian Academy of Sciences)
Authors: Aseyev S A , Ryabov E A
Published: February 2019

The structural dynamics of matter, induced by powerful and most often femtosecond laser pulses, is manifested in an atomic-molecular ‘movie’, a collection of processes, the exploration of which is of immense interest for today’s natural sciences. Studying this global phenomenon requires an ultra-high spatio-temporal resolution that involves the development of dedicated research methods. Laser spectroscopy may be applied to determine energy states of samples and track their evolution in time; however, the structural dynamics of matter can only be disclosed from that information by indirect methods. We present here direct techniques for studying laser-perturbed substances in the spatio-temporal continuum where matter is probed with ultrashort electron and X-ray pulses. We also describe the first series of experiments performed with the aid of a femtosecond electron diffractometer and picosecond transmission electron microscope at the Institute of Spectroscopy of the Russian Academy of Sciences based in Troitsk, Moscow.
"Cronología Médica”
Authors: Morales Soto Nelson Raúl
Published: February 2019

El autor es un destacado especialista en Neurocirugía y Profesor de Medicina de la Universidad Nacional Mayor de San Marcos.
A New Species of Anthurium sect. Dactylophyllium (Araceae) from the Mata Atlântica of Brazil
Authors: Coelho Marcus A. Nadruz , Mantovani André , Carlsen Monica M.
Published: February 2019

A new species of Anthurium Schott sect. Dactylophyllium (Schott) Engl., emend. Croat & Carlsen, A. petiolicarinatum Nadruz, Mantovani & Carlsen, from the Mata Atlântica region of southeastern Brazil, is described and illustrated. A distribution map, an updated key to closely related species in the section, and a discussion of conservation threats in the area are provided.
Correlation of ABO Blood Groups and Rh Factor with The Severity of Generalized Chronic Periodontitis: Across Sectional Study in Riyadh, Saudi Arabia
Authors: Mostafa Diana , Elkhatat Essam I. , Koppolu Pradeep , Mahgoub Muna , Dhaifullah Esam , Hassan Ahmed Hussein
Published: February 2019

BACKGROUND: The development of periodontal diseases depends on the presence of causative microorganisms, host immunity and risk factors. Although variability present among the types of periodontal diseases, all are represented to a shared interaction between host and bacteria. ABO blood groups are the most investigated erythrocyte antigen system. However, limited investigations have been conducted to explore the alliance between ABO blood groups and periodontal diseases.
AIM: Our purpose was to explore any possible association between the severity of chronic periodontitis with ABO blood groups and Rh factor.
METHODS: A cross-sectional study was carried out on 205 patients out of 1126 generalised chronic periodontitis patients (GCP) who were referred to Al-Farabi Colleges, Riyadh, Saudi Arabia. They were categorized into; group I (mild), group II (moderate) and group III (sever).
RESULTS: The patients with blood group O were at a greater risk to develop GCP irrespective of its severity, followed by those with blood group A, B, and AB. The dispensation of the Rh factor in all groups exhibited a significantly greater distribution of Rh positive.
CONCLUSION: Genetic factors such as ABO blood group antigens may act as a risk influencer that affects the progression and severity of the chronic periodontitis.
Factors Related to Breast Cancer Screening in Women in the Northern Part of Iran: A Cross-Sectional Study
Authors: Kardan-Souraki Maryam , Moosazadeh Mahmood , Khani Soghra , Hamzehgardeshi Zeinab
Published: February 2019

BACKGROUND: Breast cancer is the most common type of cancer in women and affects many women around the world each year. Breast cancer screening is one of the best strategies that can be used to reduce the death rate from the disease. Different factors influence the breast cancer screening rate.
AIM: This study aimed to investigate the factors that affect the screening of women for breast cancer in the northern part of Iran.
MATERIAL AND METHODS: This cross-sectional study was conducted in the Mazandaran Province of Iran in 2016 on 1,165 women who participate in breast cancer screening programs, using a cluster-sampling method. A valid and reliable researcher-made questionnaire was used to collect the data. The collected data were analysed using descriptive and inferential statistics via SPSS 21.
RESULTS: In this study, 62% of the women had a history of breast self-examinations, 41.1% had breast examinations by healthcare staff, and 21.7% received mammography. The woman’s age, age at first marriage, age at onset of sexual intercourse, occupation, spouse’s occupation, household income, health status, history of infertility, smoking, and decision-maker on issues of sexual and reproductive health (SRH) were the best predictors of participation in screening for breast cancer (P < 0.05).
CONCLUSION: To encourage participation in breast cancer screening programs, women should be encouraged to seek preventive care. Also, factors that affect screening should be considered an appropriate educational method should be provided.
ould be considered and appropriate educational methods should be provided.
Beyond geometries of activity spaces: A holistic study of daily travel patterns, individual characteristics, and perceived wellbeing in Helsinki metropolitan area
Authors: Hasanzadeh Kamyar , Czepkiewicz Michal , Heinonen Jukka , Kyttä Marketta , Ala-Mantila Sanna , Ottelin Juudit
Published: February 2019

Activity space (AS) is a measure of spatial behavior used to summarize the mobility behavior of individuals. Current studies often highlight the fact that AS is highly complex and multidimensional in character. Therefore, the need for more holistic approaches providing more comprehensive descriptions of mobility patterns is evident. This article assesses the activity spaces of young adults aged 25–40 living in the Helsinki metropolitan area using a dataset collected with an online map survey. Using a wide range of measurements covering different aspects of AS, we identified seven components that define activity spaces, namely size, intensity of activities, volume of trips, exteriority, polycentricity, elongation, and destination specialization. We then used the components together with travel mode use to identify a typology of daily mobility patterns. The results show that individuals with different types of AS differ significantly in their socio-demographic characteristics, such as age, gender, employment, household characteristics, and residential neighborhood. Furthermore, the study reveals interesting associations between AS characteristics and different aspects of wellbeing. Overall, the results highlight the importance of multidimensional and comprehensive approaches to understanding daily mobility of urban residents.
Uluru statement
Authors: Fleay Jesse John , Judd Barry
Published: February 2019

From every State and Territory of Australia, including the islands of the Torres Strait over 200 delegates gathered at the 2017 First Nations National Constitutional Convention in Uluru, which has stood on Anangu Pitjantjatjara country in the Northern Territory since time immemorial, to discuss the issue of constitutional recognition. Delegates agreed that tokenistic recognition would not be enough, and that recognition bearing legal substance must stand, with the possibility to make multiple treaties between Aboriginal peoples and Torres Strait Islanders and the Commonwealth Government of Australia.  In this paper, we look at the roadmap beyond such a potential change. We make the case for a redistributive approach to capital, and propose key outcomes for social reconstruction, should a voice to parliament, a Makarrata[1] Commission and multiple treaties be enabled through a successful referendum. We conclude that an alteration of the Commonwealth Constitution (Cth) is the preliminary overture of a suite of changes: the constitutional change itself is not the end of the road, but simply the beginning of years of legal change, which seeks provide a socio-economic future for Australia’s First Peoples, and the oldest continuing cultures in the world. Constitutional change seeks to transform the discourse about Aboriginal and Torres Strait Islander relations with the Australian state from one centred on distributive justice to one that is primarily informed by retributive justice. This paper concerns the future generations of Aboriginal and Torres Strait Islander children, and their right to labour in a market that honours their cultural contributions to humanity at large.

 

[1] Yolŋu ceremony for coming together after a struggle.
Exploring the Factors on Micro and Small Women Entrepreneurs’ Success in Northern Province of Sri Lanka
Authors: Rathiranee Yogendrarajah
Published: February 2019

This study aims to identify the factors that contribute to the success of Micro and small women entrepreneurs in the Northern Province of Sri Lanka. Being 52% of the total population in Sri Lanka, women are still being covered the population. With the consideration of the importance of women entrepreneurship, it is better to identify the factors contributing to the success of women entrepreneurs. A quantitative method was used for gathering information and stratified sampling method was used for collecting data from 284 women entrepreneurs engaged in several activities. In the process of collecting data, a questionnaire was designed to recognize the factors that influence the success of women entrepreneurs in Micro and small enterprises. Further, interviews and discussions also were held with selected entrepreneurs and officers from Divisional Secretariat Offices. After the data collection, the data analysis was made with the help of simple statistical techniques, descriptive statistics and reduction of variables (Factor analysis) by using SPSS package. The results of the study revealed that nine key variables out of thirty one contributes to the women entrepreneurs’ success in Northern Province of Sri Lanka those are motivation, self-efficacy, network, risk taking, financial strength, locus of control, problem solving, leadership and environment. The finding of this study is helpful for the micro and small entrepreneurs as well as researchers regarding the area of women entrepreneurs to further study.
Conceptual Framework Development for Job Satisfaction in Fujian Banking Industry, China
Authors: Yuxin Wang , Farooq Muhammad
Published: February 2019

Job satisfaction is the major concern of employees and managers, which is an emotional reflection of employees at work and plays an important role in increasing job performance. If the job satisfaction of employees is lower than their expectation, they will reduce attendance with lower performance and even quit the job, which is the last thing that the managers expected. In addition, employees usually are unsatisfied when they involve a few parts of the job, or when they work overload with high work stress and feel uncomfortable to get along with their co-workers or supervisors at the workplace. Therefore, it is necessary to acknowledge the satisfaction of employees, when more than half of the Chinese workers were unsatisfied with their job. According to Herzberg’s two factors theory, factors that influence employees’ job satisfaction can be separated into two parts, hygiene factors, and satisfier factors, and they can be divided into many factors as well, such as job involvement, employment relationship and so on. While this study introduced three factors (job involvement, work stress, and employment relationship) that influence job satisfaction with previous studies and fundamental knowledge in Fujian Banking Industry, China. Furthermore, providing the research methodology of job satisfaction for future research.
Understanding Users’ Preference to Engage in YouTubers
Authors: Tsao Wen-Yu
Published: February 2019

The YouTubers are the new vocations to make money. People like to access the videos to relax or learn from the special YouTuber. Despite the growth and commercial potential of virtual worlds, relatively little is known about what users’ motivations to favor specific YouTubers. This paper offered and empirically tested a conceptual model to fill this gap. Given the system characteristics (mobility, reachability, compatibility, convenience) and YouTuber specific characteristics (escapism and post popularity) integrated extrinsic and intrinsic motivation as their preference determinants. Using PROCESS on a survey of 349 users of YouTube. The results confirmed the role of extrinsic and intrinsic motivation as preference determinants and showed the two system and two YouTuber specific characteristics as motivational basis. Implications for research and practice are discussed.
A Qualitative Research on the Difficulties and Failures about Probability Concepts of High School Students
Authors: Sezgin Memnun Dilek , Ozbilen Omer , Dinc Emre
Published: February 2019

This research aimed to examine the difficulties and failures of eleventh-grade students regarding probability concepts. With this aim, ten different open-ended probability problems were asked to the 142 eleventh-grade students. Each of these problems requires using different basic probability concepts. It is qualitative research, and the data gathered in this study were analyzed using by descriptive analysis method. The findings indicated that many of these students had difficulties in solving probability problems and failed to apply different probability concepts to these problems. Notably, it was stated that many students had difficulties in finding all the probabilities without any missing in these problems. Besides, it is essential to develop reasoning skills since the students usually used trial-and-error method and prediction to solve probability problems.
The War on Drugs of Philippines and Indonesia: A Literature Review
Authors: Mutiarin Dyah , Tomaro Queenie Pearl V. , Almarez David N.
Published: February 2019

The paper explains the realities surrounding the Drug Wars of Indonesia and Philippines through a comparative lens. Analytically, the existing literature of both the Philippine case and Indonesian case about War on Drugs are scrutinized based on the context which depicts the severity of the drug problem; the strategies undertaken; the political figures of the Indonesian and Philippine Drug Wars, Joko Widodo and Rodrigo Duterte; and lastly, the criticisms surrounding the drug campaigns. Furthering the understanding of the prominent drug wars in Southeast Asia becomes crucial with the surrounding international controversies of the drug campaigns alongside the wide domestic support both campaigns have garnered.
Three-Dimensional Analysis of Bank Profit with the Development of Regulatory Restrictions: Evidence from Egypt
Authors: Helmy Ashraf , Wagdi Osama
Published: February 2019

This study experienced the effect of different regulatory restrictions and macroeconomic status on banks’ profit in Egypt. The study used factor analysis and event study techniques on data that covered the time period from 2003 to 2016 for banking sector as a whole and individual bank unit using a sample of 13 bank units in Egypt; in addition, the study experienced the performance of common stocks of the bank units in the sample. The study found that the development of regulatory restrictions has a positive effect on the profitability of the banking sector; however, due to the differentiated characteristics of individual bank units, this effect was dissimilar for different bank units in the sample. Finally, the study concluded that if individual bank units play their development role in the economy, they will be able to meet the new set of regulatory restrictions and at the same time achieve high rates of return on their assets.
What Drives Municipalities Default Risk?
Authors: Errais Eymen
Published: February 2019

Municipal credit markets have been slow to develop in emerging markets because municipal lending risks have been difficult to identify. In this paper, we analyze the factors that impact municipalities default risks. Our data set incorporates all the 264 Tunisian Municipalities and spans a period over 7 years (2010-2016). Our methodology is based on logistic regressions ran on 40 independent variables. Our results show that factors driving good debt management could be restricted to 8 factors: Gross Savings Rate, Debt Ratio, Financial Autonomy Ratio, Level of Real Estate Tax, Budgetary Stiffness Rate, Average Debt Ratio, Average Issue Date and Average Interest Rate . The model shows strong efficiency and reliable predictive power.
Green Banking Practices in Bangladesh: A Critical Investigation
Authors: Hoque Nazamul , Mowla Md. Masrurul , Uddin Mohammad Shahab , Mamun Abdullahil , Uddin Mohammad Rahim
Published: February 2019

Green banking or sustainable banking is one of the issues of the concern of all stakeholders of the world. Following this concern, this study has investigated the status of green banking practices of the non-bank financial institutions (NBFIs) and commercial banks of Bangladesh. Analyzing the contents of annual reports as well as websites of banks and NBFIs, the study finds that 44 out of 57 banks and 13 out of 33 NBFIs, to a varying degree, have exposures in direct or indirect green financing. But only 45 banks and 25 NBFIs conducted environmental risk rating. Most of the banks and NBFIs practice green banking only in a limited scale and volume and disclose green banking information in a semi structured manner in both the annual reports and corporate websites. However, except one, all the 56 scheduled banks and all the 33 non-bank financial institutions (NBFIs) have their own green banking policy guidelines. They also have green office guide for conducting in-house green activities. The study finds that green banking disclosures in their annual reports exceed that in their websites. It is also found that both private commercial banks (PCBs), and foreign commercial banks (FCBs) have surpassed state-owned commercial banks (SCBs) and state-owned specialized development banks (SDBs) in terms of the green financing.
Intentional “Over-Screwing” of Humeral Head to Improve Stability of Comminuted Fractures
Authors: Szczęsny Grzegorz
Published: February 2019

A high rate of humeral head “overscrewing” du­ring stabilization of comminuted fractures of the pro­ximal humerus, reaching 14-19% and, according to some reports, even more than 20% of all stabiliza­tions, as reported by various surgeons around the world, suggests that this complication does not simply reflect the lack of surgical skills or in­attention during the procedure.
Advances in Imaging of Hip Osteoarthritis
Authors: Lewińska Agnieszka , Palczewski Piotr , Rongies Witold , Szczęsny Grzegorz , Tomaszewski Wiesław
Published: February 2019

Osteoarthritis is the most common musculoskeletal disease worldwide, generating enormous social and medical costs. In recent years, research shedding new light on the etiology and pathogenesis of osteoarthritis has been closely related to innovations in diagnostic imaging. Precise visualization of all joint structures affected by osteoarthritis is critical for early detection and assessment of the prognosis and response to treatment. The purpose of this paper is to present recent advances in the imaging of hip osteoarthritis.
Educación histórica con el patrimonio:
Authors: Alves Luis Alberto , Pinto Helena
Published: February 2019

Se presenta una reflexión respecto al papel del patrimonio en la educación formal, en cuanto a la relación entre la educación patrimonial y la educación histórica. Se discuten referentes teóricos, que fundamentan la metodología de investigación utilizada, de carácter esencialmente cualitativo.

Son objetivos principales, analizar y comprender cómo la implementación de actividades de enseñanza y aprendizaje de historia, con recurso al patrimonio cultural, en contexto, posibilita y favorece la progresión en el conocimiento histórico y en la conciencia patrimonial de los estudiantes.

Se describen varios estudios de caso que se han desarrollado en Portugal, en el ámbito de doctorado y máster –en este caso en la Facultad de Letras de la Universidad de Porto –aplicándose en la educación formal, con profesorado de historia en formación continua y futuros docentes de historia/ciencias sociales, en formación inicial.

Los resultados, si bien sin objetivos comparativos, revelan que hay potencial para la interpretación del patrimonio en la educación formal. Aunque persistan limitaciones, hay propuestas creíbles para su desarrollo sistemático con la educación histórica. Además del estudio de las concepciones de los profesores –y alumnos– hay que comprender lo que ocurre en el aula cuando se usa el patrimonio, qué contenidos y fuentes se seleccionan, qué actividades se realizan y qué materiales didácticos se utilizan.

It is presented a reflection on the role of heritage in formal education regarding the relationship between heritage education and history education. Some theoretical references which support the research methodology of an essentially qualitative nature are discussed too.

The main purposes are to analyse and understand how the implementation of history teaching and learning activities through cultural heritage in context, makes possible and favours students’ progression in historical understanding and heritage awareness.

We describe several case studies that have been developed in Portugal, in the field of doctoral and master's research - specifically in the Faculty of Arts and Humanities of the University of Porto – that have been applied in formal education with history teachers in the context of continuous training and initial history/social sciences teachers’ training.

Results, although without comparative aims, reveal that there is potential for interpretation of heritage in formal education. Even if limitations persist, there are credible proposals for its systematic development with history education. In addition to the study of teachers’ conceptions –and students’ too– it is necessary to understand what happens in the classroom when using heritage, what contents and sources are selected, what activities are carried out and what didactic materials are used.