bluuebunny/crossref_metadata_2025 huggingface dataset:
Aspectos epidemiológicos de alterações pigmentares e de fotoproteção entre gestantes atendidas na atenção básica em municí­pio do interior paulista
Authors: Pancote Camila Garcel , Sasaki Natalia Sperli Geraldes Marin dos Santos , Reis Danielle Oliveira , Swenson Laí­s Fernandes , Roveron Mariana , Ferris Melissa Possari , Santos Maria de Lourdes Sperli Geraldes , Soler Zaida Aurora Sperli Geraldes
Published: May 2019

Introdução: Durante o ciclo graví­dico são comuns algumas alterações de pele, como o melasma e até dos nevos melanocí­ticos, com evolução para melanoma. A etiologia é multifatorial, principalmente a exposição solar, de modo que meios de fotoproteção são relevantes. Objetivo: Analisar dados epidemiológico de gestantes atendidas em uma unidade básica de saúde de São José do Rio Preto/SP, segundo as variáveis de fotoproteção. Métodos: Foram entrevistadas 100 gestantes, sobre hábitos de fotoproteção e os dados analisados por estatí­stica descritiva, teste qui-quadrado e Monte Carlo. Resultados: 95% tinham idade entre 18 e 35 anos, 47% branca; 60% não se expunham ao sol por longos perí­odos, embora a maioria estivesse ciente dos riscos da exposição solar, 82% não usavam fotoprotetores e 79% não foram orientadas quanto ao uso. Conclusão: Obtiveram-se informações importantes sobre hábitos de fotoproteção de gestantes, com necessidade de mais orientação neste contexto.Palavras-chave: gestação, melasma, melanoma, radiação solar, protetores solares.
Perfil de gestantes adolescentes atendidas pela atenção primária í saúde
Authors: Vicentim Alessandra Lima , Queiroz Alessandra Marinela de Abreu , Sperli Geraldes Santos Maria de Lourdes , Sasaki Natalia Sperli Geraldes Marin dos Santos , Martins Raul Aragão , Barbosa Renata Galli , Soler Zaida Aurora Sperli Geraldes
Published: May 2019

Introdução: A adolescência é uma fase de transformações fí­sicas e emocionais e o iní­cio de relacionamentos amorosos. Quando acontece a gestação na adolescência, há aspectos especí­ficos que devem ser considerados; torna-se fundamental dimensionar estratégias para a redução das taxas de fecundidade nesta faixa etária. Objetivo: Identificar o perfil socioeconômico e obstétrico das gestantes adolescentes atendidas nas unidades de atenção primária í  saúde. Métodos: Estudo descritivo realizado com 100 gestantes adolescentes atendidas nas unidades de atenção primária í  saúde do municí­pio de São José do Rio Preto/SP, através de entrevista semiestruturada e Instrumental de Avaliação Socioeconômica. Foram feitas análises estatí­sticas descritivas através do Software SPSS® Statistics (versão 19.0). Resultados: Idade média de 17,45 anos, 68,0% não estavam estudando, 65,0% estavam casadas ou em união estável e 79,0% não estavam trabalhando. Primeira relação sexual em média com 14,46 anos, 70,0% não estavam utilizando método contraceptivo quando engravidaram, apesar de 99,0% conhecerem algum método, 100% procuraram a unidade de saúde e 91,0% engravidaram de parceiro fixo. Conclusão: Somente o conhecimento dos métodos contraceptivos não se traduz em prevenção da gravidez; torna-se necessário o empoderamento das adolescentes, sobretudo, o desenvolvimento de projetos de vida que possam lhes envolver tanto no trabalho quanto no estudo.Palavras-chave: gravidez na adolescência, atenção primária í  saúde, adolescente, educação em saúde.
Industria, ciencia y política en el Triángulo del Litio
Authors: Fornillo Bruno , Gamba Martina
Published: May 2019

Las baterías de litio están en el centro de un nuevo paradigma energético al ser un reservorio de electricidad para la generación renovable, darle movilidad a los dispositivos eléctricos y fuerza a los vehículos. Los andes sudamericanos contienen las mayores reservas en salares del mundo, pero aun es incierto si a partir de ellas puede realizarse el tránsito y la agregación de valor que va del salar a la baterías. Abordamos, entonces,
la interrelación histórica y actual entre ciencia, política e industria de las baterías en Argentina, Bolivia y Chile, para dar cuenta del estado concreto en el que se encuentran estos países para afrontar el desafío de producir localmente los acumuladores de energía. El trabajo se basa en fuentes primarias, secundarias y en entrevistas en profundidad que hemos realizado en los tres países mencionados durante los años 2017 y 2018.
Using Archives in the Czech Republic as an Important Formative Factor of Historical Awareness and a Means of Providing Publicity For Archives: Archival Exhibitions
Authors: Ryantová Marie
Published: May 2019

Besides using archives for the scientific, economic or economic-operational, legal and administrative purposes, also cultural and educational, or political purposes play an important part. The special archival exhibitions belong (beside the lectures) to the most interesting and attractive forms of the using archives already since the 50‘s of the 20th century - both, the greatest and as well as quite small in the individual archives, use the richness of the row of archives. The new archives buildings in the Czech Republic with the exhibition rooms or at least the showcases give a suitable opportunity for it also. The archival exhibitions have even specific financial and personal requirements, but serve also to propagate the archives and have an invaluable significance for the formation of historical awareness in both nationwide and regional scale.
Ensuring Optimal Use of Archives by Facilitating Effective Records Management Practices at Offices of Origin with Specific Reference to South Africa
Authors: De VaaL-Senekal Pétria
Published: May 2019

This article is aimed to highlighting the challenges in records management, how they are addressing or could be addressed and this has an influence on the eventual usage of archives. Archives and records management per se are being discussed. The absences of certain aspects of records management can result in poor archival management. These is discussed and possible solutions / suggestions are given e.g. the establishment of records management programmes and the integration of records management / archiving. The article has been written based on the author’s own experiences.
Historical Archives and Born Digital Records
Authors: Pejović Snežana , Katelan Joško
Published: May 2019

The paper deals with the specificities of handling historical documents when it comes to the application of IC technologies and the creation of new, digital records, in the process of their arrangement, processing, protection and presentation. Besides general attitudes related to this issue, as perceived from the viewpoint of contemporary archival theory and practice, descriptions have been given of the cases from the practice of Montenegro State Archives.The goal of this paper is to draw attention to expert public to the difficulties archival profession in underdeveloped countries is faced with in its efforts to preserve archival cultural heritage, both the one stored in archives, and the one being created with the ever so widely used information technologies through all forms of human activity, including the overall archival practice.
Management of Sensitive Data and Archival Finding Aids
Authors: Novak Miroslav
Published: May 2019

The management of sensitive data in the archival material and in the archival finding aids generate different complex archival professional and technical questions. These are related to legal, ethical, technological, procedural and other aspects of describing the archival material in modern archival institutions. The author presents the methods of passive and active metadata protection of sensitive data, which are implemented in Slovenian public archives. At the same time, he also points out some practical and operative deviations from the system of sensitive data management in the archives and which has the negative influence on the development of those archival professional activities.
PERANCANGAN SEPEDA LISTRIK DENGAN MENGGUNAKAN MOTOR DC SERI
Authors: Putra Hendarto , Jie Samuel , Djohar Abdul
Published: May 2019

Perkembangan teknologi dan mobilitas saat ini telah mendorong manusia untuk berinovasi dan menciptakan alat transportasi yang hemat energi, ramah lingkungan dan dapat mengurangi ketergantungan terhadap bahan bakar minyak yang sewaktu-waktu akan habis. Saat ini mulai bermunculan alat transportasi dengan menggunakan energi listrik sebagai sumber energi alternatif dari bahan bakar minyak diantaranya adalah sepeda listrik. Tujuan dari penelitian ini adalah untuk merancang, membuat, dan mengetahui cara kerja/sistem sepeda listrik dengan pemanfaatan generator, aki dan motor listrik sebagai sumber penggerak, kemudian untuk mengetahui besarnya daya yang keluar (output) dari generator tersebut dan mengetahui kecepatan putaran motor dengan beban yang berbeda-beda. Pada tugas akhir ini penulis berhasil merancang dan membuat sepeda listrik dengan sistem penggerak berupa Motor DC seri 24 Volt, 350 Watt, 14.4 Ampere, 3000 rpm. Sepeda listrik menggunakan Generator DC magnet permanent 24 Volt dengan daya yang dihasilkan 29 Watt untuk mengkonversi energi kinetik dari putaran roda sepeda menjadi energi listrik. Media penyimpanan energi listrik pada sepeda listrik ini menggunakan 4 buah aki dengan tegangan masing-masing 12 Volt – 7.1 Ah. Dari hasil pengujian sepeda listrik dan analisa data, didapatkan daya output untuk menggerakkan sepeda listrik dengan beban 80.6 = 316.6954 Watt, beban 85.6 kg = 303.7732 Watt, beban 90.6 kg = 294.5672 Watt. Kecepatan maksimum sepeda tanpa beban adalah 78.53 m/s. Kecepatan rata-rata sepeda dengan beban 80.6 kg = 5,68 m/s, Kecepatan sepeda dengan beban 85.6 kg = 5,13 m/s, Kecepatan sepeda dengan beban 90.6 kg = 4,70 m/s. Kata kunci: Sepeda listrik, Perancangan, Motor DC seri, Generator DC magnet permanent.
Determination of phthalates in some milk products by liquid chromatography/tandem mass spectrometry
Authors: KORKMAZ Seda Dicle , KÜPLÜLÜ Özlem
Published: May 2019

This study was aimed to determine the presence and amount of the phthalates in yoghurt and ayran samples consumed in Turkey. For this purpose, 36 yoghurt and 24 ayran samples were used as materials in original packages collected from different markets in Turkey. The presence and the amounts of di-n-butyl phthalate (DBP), di (2-ethylhexyl) phthalate (DEHP), benzyl butyl phthalate (BBP), di-isononyl phthalate (DINP), di-n-octyl phthalate (DNOP) and diisodecyl phthalate (DIDP) were determined by liquid chromatography/tandem mass spectrometry (LC-MS/MS). The results of the analysis howed that DBP, DEHP and BBP were present in the yoghurt samples whereas DINP, DIDP and DNOP were found to be lower than the detectable limit 20 μg/kg. The lowest and the highest mounts of DBP, DEHP and BBP in yoghurt samples are 6-229, 24-122, 22-63 μg/kg respectively. The lowest and highest phthalate amounts in ayran samples are determined to be 38-59 μg/kg for DBP and 26-81 μg/kg for DEHP. According to the results, although DEHP and DBP were the main phthalate esters in all milk products that were analyzed, the phthalate values of the samples were found to be less than the limit values (P<0.001).
Effects of genotype and housing system on some bone biomechanical characteristics in broiler chickens
Authors: SÜZER Bayram , TÜFEKÇİ Kenan , ARICAN İlker , PETEK Metin , ABDOURHAMANE İbrahima Mahamane , ÖZBEK Melahat , YILDIZ Hüseyin
Published: May 2019

The aim of this study was to determine the effects of two genotypes (slow-growing and fast-growing) and three housing systems (deep litter, plastic slat and free-range) on some bone biomechanical properties of broiler chickens and to evaluate the interaction between genotype and housing systems. Broilers from two genotypes were reared at three different housing conditions. Fifteen bones were randomly selected from each housing system in both slow-growing and fast-growing groups, and the experiment was performed on 90 bones in total. To determine bone characteristic and biomechanical traits of tibiotarsi, bones collected from right leg and then weighed, cortical area measurements and three-point bending tests were applied. Both live body weight and carcass weight were significantly affected by genotype and housing systems. There was no interaction between genotype and housing system in terms of bone weight, cortical area, breaking strength, bending strength, and deflection. Also, housing systems had no statistical effect on these parameters. Fast-growing broilers were significantly had heavier tibiotarsi, larger cortical area and higher breaking strength than slow-growing broilers, while bending strength was significantly lower in fast-growing broilers. Deflection was not affected by genotype or by housing system. In conclusion, bone geometry and biomechanical properties were not affected by housing systems but by genotype. Fast-growing broilers had better bone morphology and stronger bones than slow-growing genotype. Therefore, fast-growing genotype can provide positive effects on bone growth and mechanical properties in broilers.
Hayvan Hastanelerinde Acil, Veteriner Klinik Hizmetleri ve Hasta Sahibi Memnuniyet Kriterleri Ölçekleri: Geçerlik ve Güvenirlik Çalışması
Authors: ÇEVRİMLİ Mustafa Bahadır , MAT Burak , GÜNLÜ Aytekin , TEKİNDAL Mustafa Agah , GÜNLÜ Zehra
Published: May 2019

Veteriner klinikleri ve hayvan hastanelerinin hasta sahiplerine ait beklentileri en üst düzeyde karşılamaları ve memnuniyetdüzeylerini artırmaları hayvan sağlığı hizmeti veren kurumların kârlılık, verimlilik ve sürdürülebilirliğinde önemli bir roloynamaktadır. Bu kapsamda çalışmada amaç, hasta sahiplerinin memnuniyeti konusunda bir ölçme aracı geliştirmek ve bu ölçmearacının geçerlilik ve güvenirlik çalışmasının yapılmasıdır. Çalışmada Hasta Sahibi Memnuniyet Kriterleri Ölçeği (HSMK-Ö), HastaSahibi Memnuniyet Değerlendirme Ölçeği-Acil (HSMD-A), Veteriner Klinik Hizmet Memnuniyeti Ölçeği (VKHM-Ö) ölçmearaçlarının yapı geçerliliği yapılmıştır. Çalışmaya başlamadan önce yapılan güç analizi (%80.121 güçle) sonucu belirlenen, 212 hastasahibine uygulanmıştır. Yapı geçerliliği için; güvenirlik analizlerinde Cronbach Alfa ( ) katsayısı kullanılmıştır. Geçerlik analiziiçin faktör analizi uygulanmıştır. HSMK-Ö; HSMD-A; VKHM-Ö maddeleri Varimax döndürme yöntemi sonucunda tek faktörlü biryapı olarak belirlenmiştir. Geliştirilen ölçeklerde HSMK-Ö’de 14 madde, HSMD-A’da 8 madde, VKHM-Ö’de 18 madde içinhesaplanan Cronbach Alfa ( ) güvenilirliği katsayıları sırasıyla 0.759; 0.936; 0.778 çıkmıştır. Açıklanan toplam varyansincelendiğinde HSMK-Ö ve VKHM-Ö’de 4, HSMD-A’da tek faktörün bulunduğu ve bu ölçülen özelliğin her ölçek için sırasıyla%58.06; %61.375; %70.39’ unun ölçüldüğü söylenebilir. HSMK-Ö, HSMD-A ve VKHM-Ö ölçme araçlarının geçerli ve güvenilirolduğu söylenebilir. Türkiye’de yapılacak farklı örneklem gruplarındaki hasta sahibi memnuniyetine ait çalışmalarda kullanımınınyaygınlaştırılması önerilmektedir.
The rarely seen congenital anomaly in a queen: Unilateral ovarian agenesis
Authors: SALAR Seçkin , KURT Serdal , Baştan Ayhan
Published: May 2019

Congenital malformations of the reproductive system are rarely encountered in queens and etiology is not known precisely. Agenesis of the ovary is one of the congenital anomalies and usually found incidentally during laparotomy operations. In this case, a 2-year-old female cat referred to the clinic for ovariohysterectomy is described. Before anesthesia and surgery, a routine examination was performed. In physical examinations and results of blood samples did not reveal any problem for the operation. After the pre-operative process, ovariohysterectomy was performed. Ovary and the uterine horn were identified on the right-side. However, only the uterine horn without any abnormality was detected on the left-side. The cat was diagnosed with unilateral ovarian agenesis. Then, a blood sample was taken to determine serum steroid hormone levels. Serum estradiol and progesterone levels were measured as 18 pg/ml and 1.4 ng/ml, respectively. As a conclusion, unilateral ovarian agenesis that is incidentally detected the laparotomy procedures were no adverse effect on sexual activity in queens.
Molecular survey of Anaplasma and Ehrlichia species in cattle from Karaman of Turkey, including a novel tandem report of Anaplasma marginale msp1a gene
Authors: AYDIN Mehmet Fatih , ÖZÜBEK Sezayi , AKTAŞ Münir
Published: May 2019

Tick-borne pathogens cause serious health problems and loss of productivity in domesticated and wild animals. A molecular study was performed to detect the frequency of infection with Anaplasma/Ehrlichia (A/E) in cattle from Karaman province of Turkey. Venous blood samples were taken from 150 apparently healthy cattle in 2016. After amplification the hypervariable V1 region of the 16S rRNA gene of A/E species, a reverse line blot (RLB) assay was performed using species-specific probes. Since some samples gave signal only to A/E catch-all probe, the samples analyzed in terms of major surface proteins (MSPs) of Anaplasma marginale. Genetic diversity and tandem repeat analysis were made for msp1α gene sequences of A. marginale. Anaplasma-like bodies were detected in four (2.66%) animals via microscopic examination. Anaplasma centrale was detected in eight (5.33%) animals via RLB. When the samples were examined in terms of A. marginale msp1a gene with semi-nested PCR, a total of nine (6.00%) animals [six of them (4.00%) were positive for A. centrale with RLB] were found to be infected with A. marginale. In addition, the sequences of MSP1a amplicons revealed one new tandem repeat (Tr70). According to these results, it was determined that A. marginale and A. centrale were found in cattle in Karaman province and this study provided the first evidence of genetic diversity of A. marginale with one new tandem repeat in cattle in the region.
Étude de la dispersion de cristaux absorbants dans l'infrarouge. Comparaison entre trois méthodes. Application à quelques carbonates
Authors: Pinan-Lucarré Jean-Paul , Tan Tai Nguyen
Published: May 2019

We used three methods to determine the optical constants of crystals, well polished, and studied under normal incidence, in the spectral range 4 000–250 cm⁻¹.

In the first method, the reflectivity of the crystal is modified by overlaying it with several layers of a transparent material. The second method concerns the Kramers-Kronig inversion relations. The last one uses the classical theory of the damped oscillator.

We have compared these various methods. Our results permit the dispersion parameters to be determined for each band (absorption frequencies, widths, damping coefficients, oscillator strengths and intensities.)

These methods have been applied to the study of five uniaxial and rhombohedral carbonates : calcite, dialogite, smithsonite, siderite, dolomite.
The crystal structure of Ca5 (H AsO4)2 (AsO4)2 • 4H2O (Sainfeldite)
Authors: Ferraris Giovanni , Abbona Francesco
Published: May 2019

La sainfeldite, dihydrogène arséniate diarséniate de calcium tétra-hydraté, appartient au système monoclinique, groupe spatial C2/c. La maille, de paramètres a₀ = 18,781 (7) Å, b₀ = 9,820 (4) Å, c₀ = 10,191 (4) Å, β = 97° 1' (3'), contient quatre groupements moléculaires. La structure a été résolue à l'aide des mesures de diffraction des rayons X faites sur un diffractomètre automatique à trois cercles avec la radiation Kα du cuivre. Les 1 909 réflexions indépendantes non nulles ont été corrigées des effets de l'absorption, de l'extinction secondaire et de la dispersion anomale. Le facteur de reliabilité obtenu après affinement anisotrope (par moindres carrés) est de 0,039. Les atomes d'hydrogène ont pu être localisés par une série différence de Fourier. Dans la structure de la sainfeldite on retrouve des groupes (AsO₄)³⁻ et des groupes (HAsO₄)²⁻ ; les cations Ca²⁺, entourés de 6 atomes d'oxygène, ont une coordination octaédrique déformée. La structure est caractérisée par la répétition de groupements de cinq polyèdres de coordination du Ca dans lesquels les octaèdres partagent des arêtes ; ces unités se lient mutuellement par mise en commun de sommets des octaèdres, en formant une connexion tridimensionnelle. Des liaisons hydrogène forment une chaîne infinie parallèle à l'axe z ; une de ces liaisons est bifide.
Punzones de madera arqueológicos de Punta Medanosa (costa norte de Santa Cruz, Argentina)
Authors: Ciampagna M. Laura
Published: May 2019

Se presenta el estudio de dos punzones de madera hallados en las proximidades de Roca del Cura, localidad arqueológica de Punta Medanosa, Santa Cruz, Argentina. El objetivo de este trabajo es describir la morfología de los instrumentos e identificar taxonómicamente la madera de estos punzones. Se discute la funcionalidad de los artefactos al considerar el soporte con el que fueron realizados en relación con otros instrumentos en hueso hallados en la costa norte de Santa Cruz (CNSC) y trabajos realizados por otros investigadores sobre cadenas operativas de cuero y cestería. Los artefactos se observaron bajo lupa binocular, se realizaron los cortes histológicos diagnósticos de la madera, se observaron al microscopio óptico y se comparó con material de referencia y bibliografía específica. La madera identificada pertenece a Schinus sp. (molle), arbustos que se encuentran en la actualidad en la zona circundante al área del hallazgo. Se sugiere la manufactura local de los instrumentos y su posible utilización en el trabajo de materiales blandos como fibras para cestería y decoración incisa en cerámica.
Análisis exploratorio de la variabilidad de la cerámica de superficie en el sitio El Carmen 2 (valle de Santa María, Tucumán)
Authors: Longo Agustina , Nastri Javier
Published: May 2019

En este trabajo se realiza una caracterización de la cerámica de superficie del sitio El Carmen 2 (valle de Santa María, provincia de Tucumán) con el fin de obtener un primer panorama acerca del repertorio de variantes producidas y usadas por los ocupantes del asentamiento a lo largo del tiempo. A partir del análisis macroscópico y submacroscópico y la aplicación de técnicas estadísticas de análisis multivariado (cluster analysis) se realiza el agrupamiento de 289 familias de fragmentos vinculando las tres dimensiones de análisis constitutivas de la cerámica: tratamiento de superficie, pasta y morfología. Teniendo en cuenta el conocimiento existente acerca de los rangos de vigencia temporal de los estilos alfareros reconocidos en la muestra, se discuten las implicancias de la mayor o menor homogeneidad cronológica observable en los grupos generados, así como también la asociación dentro de los mismos de los casos diagnósticos con otros menos conocidos hasta el momento.
Geometrical layouts of railroad switches applying single turnouts
Authors: Kampczyk Arkadiusz , Skoczylas Ewelina
Published: May 2019

In the article there were included issues of geometrical layouts of railroad switches “in design” by applying single turnouts which are components of technical research of turnouts. During rebuilding railroad switches it is required to project a new geometry by a correct selection of kinematic and geometrical parameters. Research referred to geometrical layouts of railroad switches applying single turnouts described in the article were supported by computer program POŁĄCZENIA TORÓW developed for this purpose and by the practical example. The article includes results of confrontation Polish regulations with Directive 2008/57/EC of 17 June 2008 on the interoperability of the rail system within the Community and with TSI regulations. The paper presents conclusions and observations copyright. This work was done within the framework of the statutory research No AGH 11.11.150.005.
Testing railway capacity using modern microsimulation programs
Authors: Rogowska Marta
Published: May 2019

In a time of dynamic changes in the railway market and nascent need of adjustment the infrastructure to increasing traffic flow and modern rolling stock, the issue of capacity is becoming more and more essential. In this publication the modern attempt at testing capacity – utilization of microsimulation program using as an example a section of the railway with diverse equipment is presented.
Intercultural Teaching and Learning English through Reading Skill
Authors: Miftakh Fauzi
Published: May 2019

In this globalization era, teaching English has to also involve intercultural aspects in order that students can develop their awareness towards the differences of the culture of the target language. The intercultural teaching and learning English can be corporated with reading skill activities as suggested by UsÃ³-Juan & MartÃ­nez-Flor (2008). This study was a qualitative study which potrayedreading activities to assist intercultural teaching and learning English. The data were taken with observation of teaching learning in the classroom with 25 students of 2nd semester at a state university in Karawang, West Java. 6 students were also selected to have interview in order to know their response and understanding. Finaly, there were some reading activities, such as critical reading and cultural bump, conducted in the classroom that could quite effectively improve the studentsâ€™ intercultural awareness. Some students also responded by giving positive statements about reading skill activities so their intercultural understanding could improve. However, implementing these activities were not an easy task because the teacher needs to understand the theoritical concept of intercultural language learning.
La competencia de aprender a aprender en el marco de la educación superior
Authors: Lluch Molins Laia , Portillo Vidiella Maria Cinta
Published: May 2019

La finalidad del artículo es el análisis de la competencia de aprender a aprender, sus dimensiones, factores asociados, metodologías y sistemas de evaluación para su implementación en la educación superior. La incorporación del enfoque competencial en el EEES se ha caracterizado, preferentemente, por el cambio de paradigma que otorga el protagonismo del aprendizaje al alumnado, situándolo en el centro del proceso y valorando el potencial de la evaluación para gestionarlo. En este contexto, aprender a aprender es clave para la educación, en cualquiera de los entornos posibles de aprendizaje.

La aproximación metodológica seguida se basa en la obtención de evidencias científicas desde el análisis documental y de investigaciones recientes con alumnado universitario, a la vez que se profundiza en las propuestas metodológicas y evaluativas que contribuyen al desarrollo de esta competencia. Como resultados, ha sido posible identificar el valor añadido de esta competencia; poner de relieve los retos asociados con su definición y medición; y valorar procesos de evaluación formativa sostenibles que fomentan la toma de conciencia mediante la autoevaluación y la retroalimentación entre iguales, para optimizar el perfil competencial del alumnado universitario. En conclusión, la asunción de aprender a aprender como competencia básica conlleva aprender a centrar la atención en el aprendizaje como actitud vital, que acompaña a la persona de forma permanente. Esto implica cambios en la formación docente, puesto que este reto pide no sólo una constante actualización científica del saber, sino la activación de metodologías que integren la evaluación como proceso continuo de construcción de conocimiento.
Una propuesta piloto de herramienta analítica del aprendizaje para la mejora de procesos colaborativos en la plataforma Blackboard
Authors: Niño Carrasco Shamaly Alhelí , Castellanos Ramírez Juan Carlos , Viloria Hernández Esperanza
Published: May 2019

Se presenta un estudio centrado en un conjunto de indicadores relacionados con el modelo de influencia educativa distribuida, susceptibles de desarrollar una herramienta analítica del aprendizaje que ayude a proporcionar feedbacks formativos. Para ello, se explora el efecto que la entrega de información relacionada con este modelo tiene sobre la mejora de los procesos colaborativos de los participantes en la plataforma digital Blackboard. Se realizó un estudio cualitativo de casos con 24 estudiantes de licenciatura, que participaron en cinco foros de discusión en línea. Los resultados muestran que la entrega de información potencia la mejora de los procesos colaborativos en las etapas iniciales de la tarea. Se concluye, que la información asociada al modelo teórico tiene un efecto mayor sobre los procesos colaborativos de los grupos que contaron con esta información; esto refuerza el interés por analizar, en profundidad, las dinámicas particulares de cada grupo para comprender el efecto de la información en las mismas.
FAKTOR MACROECONOMIC DAN BANK SPESIFIC DETERMINAN DARI PROFITABILITAS BANK DI INDONESIA DENGAN PENERAPAN INTERNET BANKING
Authors: Ferli Ossi
Published: May 2019

The purpose of this research is to use a linier regression model and analyze the effect of macroeconomic and bank spesific factors to profitability of banks in Indonesia considering the implementation of internet banking. Spesifically we analyze the performance different between banks with internet banking and non internet banking. We use data of 30 banks in Indonesia periode of 2008 until 2010.The result shows that macroeconomic and some of bank spesific factors also internet banking has a significant influence to banks profitability. The research also showed bank with internet banking has a better performance than non internet banking, mostly because the overall condition of the banks and that internet banking has been a complementary factor in bank service to their customer.Keywords: Internet banking, data panel, bank spesific, macroeconomic
Extending mechanochemical porphyrin synthesis to bulkier aromatics: tetramesitylporphyrin
Authors: Su Qiwen , Hamilton Tamara D
Published: May 2019

Aldehydes with bulky substituents in the ortho-positions have been historically difficult in porphyrin synthesis, presumably owing to steric hindrance around the reactive site. We have used mechanochemistry for the simple, room-temperature synthesis of tetra-meso-substituted porphyrins. In the present study, mesitaldehyde undergoes acid-catalyzed mechanochemical condensation with pyrrole to give meso-tetrakis[2,4,6-(trimethyl)phenyl]porphyrin (TMP) after oxidation in solution. Yields are similar to those obtained using high-temperature porphyrin synthesis, although they remain significantly lower than some optimized room-temperature, solution-based methods. Yields of the mechanochemical synthesis were found to increase slightly upon longer exposure to an organic oxidizing agent in solution. This indicates that the mechanochemical condensation step may be more successful than initially realized. This work shows that mechanochemistry is a successful, simple, room-temperature method for producing tetra-meso-substituted porphyrins with bulky substituents.
EXPERIMENTAL INVESTIGATION ON DYNAMIC BEHAVIOUR OF HEAVY-HAUL RAILWAY TRACK INDUCED BY HEAVY AXLE LOAD
Authors: Shi Zhiyong , Wang Kaiyun , Zhang Dawei , Chen Zaigang , Zhai Guanghao , Huang Daoxing
Published: May 2019

The damage to the track structure and the influence to the line deformation have greatly deteriorated with the increase of the axle load compared with that of the ordinary trains. However, there is a paucity of experimental research on the dynamic influence of the heavier haul freight trains on the railway tracks. The objective of this study is to investigate the dynamic behaviour of heavy-haul railway track induced by heavy axle load by field experimental tests. The wheel–rail dynamic force, the track structure dynamic deformation and the track vibration behaviour are measured and analysed when the train operates in the speed range from 10 to 75 km/h and the axle load of vehicles varies from 21 to 30 t. Comparisons between the results for the axle conditions of 25 and 30 t are made in this paper to reveal the axle load effects. It is demonstrated that part of the indicators reflecting the dynamic behaviour of the railway track increases approximately linearly with the train running speed and axle load, while others are influenced negligibly
DETERMINING THE POSITION AND STATE OF POST-IMPACT MOTION OF A MOTOR VEHICLE STRUCK ON ITS SIDE AT A ROAD INTERSECTION, BASED ON EXPERIMENTAL TESTS
Authors: Gidlewski Mirosław , Prochowski Leon , Wach Wojciech
Published: May 2019

The modelling, simulation, and reconstruction of road accidents are difficult processes, where experimental test results must be used at different stages of the work. Such data are needed e.g. to create or improve models of vehicle collision dynamics and to validate the results of computer simulations of vehicle motion during and after the collision. Within the work, experimental tests were carried out and the test results were utilized for determining specific values of the parameters that characterize the state of motion of the impacted vehicle during the collision and after the vehicle separation from each other. The test results make it possible to determine the initial values to be used in calculations of further free motion of the vehicle after a side impact. In particular, they enable defining the influence of the location of the point of impact against the vehicle side on the position and angle of rotation of the vehicle in relation to the global reference frame and on the value, direction, and sense of the vector of linear velocity of the centre of vehicle mass and the vector of angular velocity of the vehicle body around the vertical axis. These data constitute information sufficient to determine the energy of translation and rotation of the vehicle struck on its side at a road intersection and to carry out a simulation of the vehicle motion immediately following the collision
MODELLING PERCEIVED PEDESTRIAN LEVEL OF SERVICE OF SIDEWALKS: A STRUCTURAL EQUATION APPROACH
Authors: Bivina Geetha Rajendran , Parida Manoranjan
Published: May 2019

A disparity between developed and developing countries is not only in the terms of economy and geography, but also on the pedestrians’ perceptions and expectations about the level of service of sidewalks. Therefore, it is paramount to find the effect of various built environment measures, that impact perceived Pedestrian Level Of Service (PLOS) in the context of developing nations. This study investigates the most influential factors of the built environment that affect perceived PLOS of sidewalks in the Indian context. This is one of the first studies in India that utilize Structural Equation Modelling (SEM) technique to assess pedestrian satisfaction and thereby qualitative PLOS of sidewalks. A total of 502 personal interviews was conducted to extract the pedestrian perception about the quality of sidewalks of Thiruvananthapuram city, a typical Indian city. The results identified four latent exogenous constructs named “Safety”, “Security”, “Mobility and infrastructure” and “Comfort and convenience” that represent the main aspects of the PLOS of sidewalks among which factors of security has exhibited highest loading (λ = 0.60). The study identified that parameters like police patrolling, street lighting, cleaner sidewalks, sidewalk obstructions, sidewalk surface have an evident impact on the level of service of sidewalks. The results of the study provide a significant information for interpreting the aspects of the walking environment that mainly influences the PLOS. This information can help city planners to prepare new strategies, policy interventions that enhance the quality of sidewalks and thus making the city more walkable
Experimental and Theoretical Studies of the Isotope Exchange Reaction
Authors: Hillenbrand P.-M. , Bowen K. P. , Liévin J. , Urbain X. , Savin D. W.
Published: May 2019

Deuterated molecules are important chemical tracers of prestellar and protostellar cores. Up to now, the titular reaction has been assumed to contribute to the generation of these deuterated molecules. We have measured the merged-beams rate coefficient for this reaction as a function of the relative collision energy in the range of about 10 meV–10 eV. By varying the internal temperature of the reacting

molecules, we found indications for the existence of a reaction barrier. We have performed detailed theoretical calculations for the zero-point-corrected energy profile of the reaction and determined a new value for the barrier height of ≈68 meV. Furthermore, we have calculated the tunneling probability through the barrier. Our experimental and theoretical results show that the reaction is essentially closed at astrochemically relevant temperatures. We derive a thermal rate coefficient of <1 × 10−12 cm3 s−1 for temperatures below 75 K with tunneling effects included and below 155 K without tunneling.
Long-term Hydrodynamic Simulations on the Planetesimals Trapped in the First-order Mean Motion Resonances
Authors: Hsieh He-Feng , Jiang Ing-Guey
Published: May 2019

The resonant perturbations from planets are able to halt the drag-induced migration, and capture the inwardly drifting planetesimals into mean motion resonances. The equilibrium eccentricity of planetesimals in resonances, and the minimum size of planetesimal that can trigger resonance trapping, have been analyzed and formulated. However, the analytical works based on the assumption that the disk is axisymmetric, which is violated by the asymmetric structures developed by planets. We perform long-term 2D hydrodynamic simulations to study the dynamics of planetesimals in the j: (j + 1) first-order exterior resonances, and reexamine the theoretical expressions. We find the expression of equilibrium eccentricity underestimates the values for resonances with j < 5, in particular the 1:2 resonance that the underestimation can be 30%–40%. Within the parameter space we explored, we find the equilibrium eccentricity and the minimum size are reduced in an asymmetric disk. The amount of discrepancy in eccentricity depends on the degree of asymmetric structures. For cases of Earth-sized planets, where the disk is less disturbed, the planetesimal’s eccentricity can reach to the values predicted by our modified expression. For gaseous planets, however, the eccentricity can be 0.01–0.02 smaller in value. We find the minimum size is 10 times smaller, and the factor seems to be independent of the planet’s mass. The influences of asymmetric profiles on the eccentricity and the minimum size could affect the outcome of collisions between resonant and nonresonant planetesimals, and the amount of planetesimals migrated into the planet’s feeding zone.
Short-Term Outcome of Multi-Ligament Knee Injury among Sudanese Patients
Authors: Ali Amin Ahmed , Abdelwahab Mohamed Babiker
Published: May 2019

BACKGROUND: Multi-ligament knee injury is the state of having two or more of the major knee ligaments, namely: the anterior cruciate ligament (ACL), the posterior cruciate ligament (PCL), the medial collateral ligament (MCL), the lateral collateral ligament (LCL), the posteromedial corner (PMC), and the posterolateral corner (PLC). The knee is a hinge joint; this dictates two direction movements on the y-axis plane. The knee joints carry the weight load of the body uniquely. The role of the knee ligaments is not conserved only to maintain knee in a rigid position while standing, but also orchestrates the biomechanics of knee motion in harmony. Multi-ligament knee injury is very rare (incidence < 10:10,000 of trauma cases). Patients with multiple ligaments injuries of the knee become disabled for a long period. This disability rises from the pain and stiffness of the knee joint. A disability that might be associated with increased frequencies of sick leave from work, or much more dire consequences, such as quitting a job or being relieved of duty.
AIM: To assess the functional outcome of the knee of patients with a multi-ligament knee injury after treatment using a standard scoring system and to determine the recovery rates of each treatment option to a multi-ligament knee injury.
METHODS: it is a cross-sectional study conducted from January 2018 to January 2019. All patients with multi-ligament knee injuries that were diagnosed by MRI, and underwent reconstruction surgeries or on the waiting list, at Ribat University Hospital and Alyaa Specialized Hospital, Alkuwiti specialised hospital, and Haj Alsafi Hospital for the past 2 years were included. Lyshlome knee scoring scale was used to assess the functional outcome of each patient.
RESULTS: 24 patients were enrolled in this study (16 had reconstruction surgery, 8 did not). 3 had excellent outcome (LKSS = 95 – 100), 8 of them had good score (LKSS = 84-94), 5 had fair outcome (LKSS = 65-83). All those who did not have reconstruction had a poor score (LKSS < 64).
CONCLUSION: Reconstruction of multi-ligament knee injury shows a good outcome than it was left alone. Post-operative physiotherapy increases the potential of reconstruction. While our data is limited because of the rare condition, we plan to expand our study area to include a larger sample size. We also recommend extending the post-operative physiotherapy to improve the outcome of a multi-ligament knee injury.
Eosinophilic Fasciitis – Report of Three Cases and Review of the Literature
Authors: Wollina Uwe , Hansel Gesina , Schönlebe Jacqueline , Heinig Birgit , Temelkova Ivanka , Tchernev Georgi , Vojvodic Aleksandra , Lotti Torello
Published: May 2019

BACKGROUND: Eosinophilic fasciitis is a rare fibrosing disorder of muscle fascia with rapid onset of erythema, induration, oedema and tenderness affecting extremities bilaterally.
CASE REPORT: We report three cases of eosinophilic fasciitis in 3 females aged 64, 65 and 73 years, in two of them in association with morphea. They fulfilled the proposed diagnostic criteria. Associated malignancies could be excluded in all of them. They were treated by systemic corticosteroids. In the two females with associated morphea higher prednisolone dosages and a combination with methotrexate was necessary.
CONCLUSIONS: Eosinophilic fasciitis is a differential diagnosis of systemic scleroderma. Response to treatment is often delayed. Systemic corticosteroids are the first line therapy. Patients with associated morphea need combined drug therapy, in our patients with methotrexate. There is no close correlation between laboratory signs of inflammation and clinical response to treatment.
Interleukin-17 Gene Polymorphism Is Protective Against the Susceptibility to Adult Acute Myeloid Leukaemia in Egypt: A Case-Control Study
Authors: Elsissy Maha , Abdelhafez Ahmed , Elmasry Manal , Salah Doaa
Published: May 2019

BACKGROUND: Th17 cells are blamed for being accused in the pathogenesis of acute myeloid leukaemia. Th17 cells are CD4+ cell subtype. They produce IL-17A and IL-17F.
AIM: This study aims to trace the relation between IL-17A and IL-17F polymorphisms and AML incidence and to define the connection between IL-17 polymorphisms and its serum level.
METHODS: A group of 100 acute myeloid leukaemia patients and 100 age and sex-matched healthy subjects (controls) were enrolled in the present work. Restriction fragment length polymorphism- polymerase chain reaction (PCR-RFLP) was done to detect IL-17A (rs2275913; G197A) and IL-17F (rs763780; A7488G). Serum IL-17 level was assessed by Enzyme-linked immunosorbent assay analysis (ELISA) in both patients and controls.
RESULTS: IL-17F, IL-17A mutant genotypes and alleles showed no significant relation with acute myeloid leukaemia incidence. Also, ELISA results proved that serum IL-17 did not vary between acute myeloid leukaemia patients and healthy subjects.
CONCLUSION: Interleukin-17 gene polymorphisms did not consider a risk for acute myeloid leukaemia.
Clinic - Morphologic and Morphometric Criteria for Differential Diagnosis of Sarcoidosis and Pulmonary Tuberculosis
Authors: Tussupbekova Maida , Bakenova Roza , Stabayeva Leila , Imanbayeva Gulnazira , Nygyzbayeva Raikhan , Mussabekova Saule , Tayzhanova Dana
Published: May 2019

BACKGROUND: Currently incidence and prevalence of sarcoidosis are increasing. Sarcoidosis is a systemic granulomatous lung disease of unknown aetiology, which is characterised by the involvement of different organ systems, variable disease course affecting young people and possessing an important issue in the modern world. The disease is extremely heterogeneous with an unpredictable clinical course. Interesting clinical cases are described in which, with a sufficient illustration of the stages of the course and diagnosis of sarcoidosis of the lungs and peripheral lymph nodes, the diagnosis was difficult. Late diagnosis and lack of correct therapy make prognosis in patients with lung sarcoidosis unfavourable.
AIM: To conduct a morphometric study with the determination of the cellular composition of granulomas for the differential diagnosis of morphogenesis of granulomas in sarcoidosis and pulmonary tuberculosis.
MATERIAL AND METHODS: An analysis of transthoracic biopsy of 89 patients with a verified diagnosis of sarcoidosis of the lungs and disseminated form of pulmonary tuberculosis was carried out. The resulting lung tissue material was carried out according to the standard histological method; conducted morphometric analysis.
RESULTS: Sarcoid granulomas are characterised by an increase in lymphocytes, indicating the immune character of the lesion, an increase in fibroblasts, fibrocytes, and signs of activation of angiogenesis. While for TB granuloma an increase in the number of granulocytes and epithelioid cells is characteristic. These morphological criteria for the diagnosis of sarcoidosis of the lungs and lymph nodes are necessary for use in the practice of pathologists to verify the clinical diagnosis.
CONCLUSION: Developed morphological and morphometric criteria for the differential diagnosis of sarcoidosis and pulmonary tuberculosis must be used in the practice of a pathologist to verify the clinical diagnosis, which will determine the adequate tactics of examination, administration, correction of the disease, and evaluation of the prognosis of the disease, taking into account identified clinical and laboratory data, results of instrumental research methods.
The PI3KCA and AKT Inhibitory Activities of Litsea Cubeba Lour. Fruits and Heartwoods Towards Hela Cells
Authors: Dalimunthe Aminah , Hasibuan Poppy Anjelisa Zaitun , Satria Denny
Published: May 2019

AIM: To investigated the activities of chloroform fractions at pH 7 of Litsea cubeba Lour. Fruits and heartwoods (CF-7F and CF-7H) in decrease expression of PI3KCA, Akt-1 and Akt-2 genes towards cervical cancer cell culture (HeLa) experiments in vitro.
MATERIAL AND METHODS: CF-7F and CF-7H (12.5 and 25 µg/mL) were tested for its potential inhibition on gene expression of PI3KCA, Akt-1 and Akt-2 genes by Reverse Transcription-Polymerase Chain Reaction (RT-PCR) method.
RESULT: CF-7F and CF-7H were showed the activity to reduce the expression of PI3KCA, Akt-1 and Akt-2 genes.
CONCLUSION: Our results suggest that CF-7F and CF-7H significantly inhibit the expression of PI3KCA, Akt-1 and Akt-2 genes.