bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nature of case study as the accelerator for transmission of economic knowledge and entrepreneurship
Authors: Milaszewicz Danuta , Zakrzewska Małgorzata 
Published: January 2018

Abstract
Economic education is crucial in a modern economy where the knowledge makes for one of many resources. However not only the curriculum matters and the passed contents, but also applied teaching methods. The method related to Case Study may provide a good tool for economy and entrepreneurship teaching, as it focuses not only on the problem, but also on a student and takes into account teamwork. This method facilitates the analysis of enterprising attitude and economic practice, whereas shaping the soft competences stimulates knowledge transmission, facilitates knowledge assimilation and may contribute to development of enterprising attitude.
A model of business intelligence and online marketing for commercial
Authors: Gheorghe Simona , Popescu Mirona , Purcărea Anca Alexandra 
Published: January 2018

Abstract
Technology is expanding at a speed previously unsurpassed; therefore an emphasis is made on integration, optimization and increasing efficiency on different fields. Business intelligence is a new concept which became popular alongside online marketing, as both use external and internal data in order to make better decisions, process improvement and optimizations. The aim of this paper is to propose a solution for business intelligence in the commercial field based on a model of internal sales platform. Gathering data for all the structures integrated in this platform improves the optimization of products and services offered by the companies and also streamline the process of sales. This business solution underpins another solution enabling market research on consumer preferences in order to lead to the development of new products / services according to the real needs of the market at the present time.
A conceptual framework concerning education as factor of elders’ acceptance for smart assistive technologies
Authors: Popescu Dorin , Popescu Sorin , Bodi Stefan 
Published: January 2018

Abstract
The aging of the world's population, raises issues of assisting elderly in conditions of sustainable spending. In this respect, smart technologies bring both an opportunity, providing solutions to assist elders’ life and a barrier coming from the lower acceptance of older adults for digital technologies. The paper proposes a research focused on education and its influence on older adults’ readiness to adopt new, digital technologies. As reference the two versions of the Unified Theory of Acceptance and Use of Technology (UTAUT and UTAUT2) were used. The research is based on a systematic literature review aimed to draft a conceptual framework placed on two dimensions: the first one tries to establish "if and how the initial education is influencing the elders’ acceptance of assistive technologies" and, the second targeting "how this initial education is correlated and/or imbedded in the elements of the UTAUT models".
“A”-type Talent Cultivation through Adhering to “Three-Three-Three” Ideas by Characteristic Universities -- With Hebei GEO University as An Example
Authors: Wang Fengming 
Published: January 2018

Abstract
The industry characteristic universities are an important component in the field of higher education, which are also the main form for talent cultivation facing the industries and businesses, thereby playing an important role in accelerating the economic and technological development of various countries. Taking the industry characteristic universities as the example, combining the era development tendency, and systematically analyzing and proposing the new thoughts of school-running theory, orientation and talent cultivation of industry universities under the background of education globalization are conducive to giving play to the discipline advantages of industry characteristic universities, accelerating the scientific and technological innovation, and improving the quality of talent cultivation.
Maya Timeline in Uaxactun: Calendric Notations on the Mural Paintings at Structure B-XIII
Authors: Špoták Jakub 
Published: January 2018

Abstract
Famous Uaxactun Mural paintings, which were found in Structure B-XIII, have been wellknown to Maya scholars for decades. They are considered as proof of Maya-Teotihuacan connection, and the importance of Uaxactun. On the other hand, the different scenes with musicians, nobles and warriors are beautiful source of Maya iconography. Below these paintings, also a short inscription in form of calendric notation was found. This inscription was not analyzed due to imperfect drawing, which was made by Antonio Tejeda in 1930’s. Fortunately, it was possible to create a new rendering of this inscription, thanks to preserved photographs of Carnegie Institute.
Simple production of medium density fiberboards (MDF) reinforced with chitosan
Authors: Ji Xiaodi , Dong Yue , Yu Ruidong , Du Wenxin , Gu Xue , Guo Minghui 
Published: January 2018

Abstract
A simple and efficient method was developed for preparing medium density fiberboard (MDF) reinforced with chitosan via the traditional hot-press manufacturing process. The mechanical and dimensional properties of the MDF were investigated as a function of the chitosan amount. At the 4% level of added chitosan, the MDF reached the optimal performance and met completely the requirements of the Chinese national standard GB/T 11718-2009. Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD) characterizations revealed that wood fibers and chitosan might interact with each other through the formation of hydrogen and amide bonds during the hot-pressing process. The fracture surfaces of the MDFs are indicative for strong bonds at the interface, which explain the excellent MDF performance.
Comparison of physical and thermal properties of various wood-inorganic composites (WICs) derived by the sol-gel process
Authors: Hung Ke-Chang , Wu Jyh-Horng 
Published: January 2018

AbstractThe physical properties and thermal decomposition kinetics of wood-inorganic composites (WICs) were in focus, which were prepared from methyltriethoxysilane (MTEOS), tetraethoxysilane (TEOS) and titanium (IV) isopropoxide (TTIP) by the sol-gel process. The hydrophobicity and dimensional stability of the composites were better than those of unmodified wood (Wcontr), but the performance of SiO2-based WICs (WICSiO2) was the best. The SEM-EDX micrographs show that silica is only distributed within the cell wall of the WICSiO2. By contrast, titania was deposited principally in the cell lumens of the WICTiO2. The thermal decomposition kinetic experiments show that the average apparent activation energies with conversion rates between 10% and 70% were 156–168 (Wcontr), 178–180 (WICMTEOS), 198–214 (WICTEOS) and 199–204 (WICTTIP) kJ mol−1at the impregnation level of 20% weight gain. The reaction order values calculated based on the Avrami theory were 0.51–0.57, 0.39–0.51, 0.36–0.47 and 0.28–0.51 in the same order of species indicated above. Accordingly, the dimensional and thermal stability of the wood could be enhanced effectively by the sol-gel process with silicon- and titanium-based alkoxides.
The Cosmic Habitat for Earth-Life and the Issue of Sustainable Development
Authors: Piątek Zdzisława 
Published: January 2018

Abstract
The subjects under consideration here are the philosophical consequences arising as the cosmic dimension to ecology is taken into account. If the habitat for Earthlife is a part of the cosmic environment, then cosmology and astrophysics become a part of ecology. The human species is furthermore a participant in a vast process of cosmic evolution, with sustainable-development strategy thus defi ning the conditions for - and time needed to achieve - a technological civilisation allowing Earth-life to be evacuated to another part of the galaxy as and when the further existence of life on this planet becomes (or threatens to become) an impossibility. In the context of such a cosmic perspective, the value ascribable to our scientifi c and technological civilisation (and future versions thereof) changes, given that only this kind of civilisation offers a chance for Earth-life to persist in an extra-terrestrial environment.
The King, His Chapel, His Church. Boundaries and Hybridity in the Religious Visual Culture of the Norman Kingdom
Authors: Bongianino Umberto 
Published: January 2018

AbstractThe creation of the Norman kingdom of Sicily was complemented by the development of a unique court milieu encompassing elements from the Latin West, Byzantium, and the Islamic world. The churches of Palermo, in particular, became the focus of a sophisticated project of experimentation and combination of different artistic traditions, to convey an artificial image of equilibrium among élites and communities of three different denominations: Latin, Greek-Byzantine, and Arabo-Christian. Through the creation and subversion of architectural boundaries, the promotion of certain forms of visual hybridity, the transgression of artistic media, and the articulation of new liminal spaces, the Norman rulers transformed their churches and cathedrals into an ideal stage for performing their liturgy of kingship, and conveying the message of a multi-faceted religious system unified and harmonized only through the king, as supreme head of the Church and vicar of Christ.
Antibacterial activity against Staphylococcus aureus of chitosan/chondroitin sulfate nanocomplex aerogels alone and enriched with erythromycin and elephant garlic (Allium ampeloprasum L. var. ampeloprasum) extract
Authors: Gómez María Angélica , Bonilla Jennifer Marcela , Coronel María Alejandra , Martínez Jonathan , Morán-Trujillo Luis , Orellana Sandra L. , Vidal Alejandra , Giacaman Annesi , Morales Carlos , Torres-Gallegos César , Concha Miguel , Oyarzun-Ampuero Felipe , Godoy Patricio , Lisoni Judit G. , Henríquez-Báez Carla , Bustos Carlos , Moreno-Villoslada Ignacio 
Published: January 2018

Abstract
The antibacterial activity against Staphylococcus aureus of aerogels fabricated from colloidal suspensions of chitosan/chondroitin sulfate nanocomplexes is analyzed. Upon freeze-drying the colloidal suspensions, the aerogels presented a porous structure made of microsheets and microfibers. The aerogels could, in addition, be loaded with antimicrobial agents. Loaded with the antibiotic erythromycin, the aerogels showed crystalline deposits, affecting the topography of the samples as well as their mechanical properties, showing a decrease on the apparent Young’s modulus and hardness at 40% deformation. Loaded with elephant garlic (Allium ampeloprasum L. var. ampeloprasum) extract, the aerogels showed texturization of the microsheets and microfibers, and the higher relative mass allowed an increase on the apparent Young’s modulus and hardness at 40% deformation with respect to pristine aerogels. Unloaded aerogels showed activity against Staphylococcus aureus, including a methicillin-resistant strain. The release of erythromycin from the aerogels to an agar environment is governed by equilibrium forces with the polysaccharides, which allow modulating the load of antibiotic and its concomitant diffusion from the material. The diffusion of the active components of the elephant garlic extract did not show a dependence on the polysaccharide content, revealing a week interaction. The elephant garlic extract resulted active against the methicillin-resistant Staphylococcus aureus strain, while resistance was found for the antibiotic, revealing the therapeutic potential of the natural extract. The antimicrobial aerogels may be used for several therapeutic purposes, such as healing of infected chronic wounds.
Tailored silica nanospheres: an efficient adsorbent for environmental chromium remediation
Authors: Ali Zarshad , Ahmad Rashid , Khan Aslam 
Published: January 2018

Abstract
This manuscript reports the synthesis and characterization of caprylpyrazolone tailored silica nanospheres, synthesized through sol–gel procedure by activating the silica nanospheres with organosilane precursor and grafting with caprylpyrazolone. Its successful attachment to the silica is confirmed by FTIR, TGA and elemental techniques. The feasibility of the synthesized nanospheres as adsorbent was systematically checked by elimination of trace level of Cr(III) from aqueous medium, using radiotracer technique. A number of factors such as effect of pH, agitation time, adsorbent and adsorbate dosage were optimized to guarantee the use of the adsorbent for practical use. Various counter ions were added to the matrix solution to check the selectivity of the synthesized sorbent. Various rate equations and adsorption isotherms such as Freundlich, D-R and Langmuir were employed to suggest the mechanistic pathway of the adsorption process. The Cr(III) extraction was monitored at room and elevated temperatures and thermodynamic parameters such as change in enthalpy, entropy, and Gibbs free energy of the metal ion uptake were computed. The removal of Cr(III) is endothermic (∆H=30.00 J mol−1 K−1) and spontaneous (∆S=105.43 J mol−1 K−1) in nature. Application of the adsorbent to real water samples demonstrated the practical utility of the adsorbent. The sorbent displayed good stability. Its cleaning efficiency is not significantly affected after various adsorption-desorption cycles and so it can be used repeatedly.
Maintenance of Genome Integrity by Mi2 Homologs CHD-3 and LET-418 in Caenorhabditis elegans
Authors: Turcotte Carolyn A , Sloat Solomon A , Rigothi Julia A , Rosenkranse Erika , Northrup Alexandra L , Andrews Nicolas P , Checchi Paula M 
Published: January 2018

Abstract
Meiotic recombination depends upon the tightly coordinated regulation of chromosome dynamics and is essential for the production of haploid gametes. Central to this process is the formation and repair of meiotic double-stranded breaks (DSBs), which must take place within the constraints of a specialized chromatin architecture. Here, we demonstrate a role for the nucleosome remodeling and deacetylase (NuRD) complex in orchestrating meiotic chromosome dynamics in Caenorhabditis elegans. Our data reveal that the conserved Mi2 homologs Chromodomain helicase DNA-binding protein (CHD-3) and its paralog LET-418 facilitate meiotic progression by ensuring faithful repair of DSBs through homologous recombination. We discovered that loss of either CHD-3 or LET-418 results in elevated p53-dependent germ line apoptosis, which relies on the activation of the conserved checkpoint kinase CHK-1. Consistent with these findings, chd-3 and let-418 mutants produce a reduced number of offspring, indicating a role for Mi2 in forming viable gametes. When Mi2 function is compromised, persisting recombination intermediates are detected in late pachytene nuclei, indicating a failure in the timely repair of DSBs. Intriguingly, our data indicate that in Mi2 mutant germ lines, a subset of DSBs are repaired by nonhomologous end joining, which manifests as chromosomal fusions. We find that meiotic defects are exacerbated in Mi2 mutants lacking CKU-80, as evidenced by increased recombination intermediates, corpses, and defects in chromosomal integrity. Taken together, our findings support a model wherein the C. elegans Mi2 complex maintains genomic integrity through reinforcement of a chromatin landscape suitable for homology-driven repair mechanisms.
Detección de anticuerpos para Trypanosoma cruzi en donantes de sangre. Caquetá, Colombia, 1995 a 2010
Authors: Beltrán Durán Mauricio , Hilarión Gaitán Liliana Beatriz , Bermudez María Isabel , Berrio Pérez Maritza 
Published: January 2018

Objetivo Caracterizar epidemiológicamente los casos reactivos y confirmados para Trypanosoma cruzi en donantes de sangre del departamento de Caquetá desde 1995 a 2010.Materiales y Métodos Estudio descriptivo, retrospectivo. La información fue obtenida en el banco de sangre y Laboratorio Departamental de Salud Pública de Caquetá, los datos se colectaron en un formulario estandarizado diseñado en Microsoft Excel® convariables específicas, posteriormente se depuró, corroboró y completó la información con las bases de datos nacionales Registraduría Nacional de Colombia y Base de Datos Única de Afiliados del Fondo de Solidaridad y Garantía (FOSYGA) del sistemade salud colombiano. En el análisis se utilizó estadística descriptiva uni y bivariada en Microsoft Excel® y un análisis de correspondencia múltiple (ACM) con el programador matemático R® versión 3.0.Resultados De 42 516 donaciones tamizadas, se detectaron 261 casos reactivos, 92 resultaron positivos para T. cruzi, 12 negativos y 157 casos sin dato de confirmación. Se consultó la posible ubicación caso a caso con las bases de datos nacionales, estableciendofactibles migraciones a diferentes zonas del país.Conclusión La caracterización y ubicación actual por medio del contraste y búsqueda de información con bases de datos nacionales de los casos positivos confirmados para T. cruzi es un avance importante en salud pública, pues es la primeria línea de información existente en Colombia que entrega gran cantidad de datos caso a caso, con el fin que las autoridades competentes inicien búsqueda activa para el manejo clínico pertinente.
Calidad de vida relacionada con salud en la población Colombiana: ¿cómo valoran los colombianos su estado de salud?
Authors: Rojas Reyes María Ximena , Gomez-Restrepo Carlos , Rodríguez Viviana A. , Dennis-Verano Rodolfo , Kind Paul 
Published: January 2018

Objetivo Determinar la percepción sobre la calidad de vida relacionada con salud (CVrS) que tiene la población adulta en Colombia.Métodos encuesta poblacional en una muestra representativa de la población rural y urbana, de 18 y más años. Se midió la CVrS con el instrumento EQ5D-3L y la escala visual análoga, como parte de la cuarta Encuesta Nacional de Salud Mental. Las estimacionesfueron ajustadas por el diseño de muestreo y se acompañan de intervalos de confianza al 95 %.Resultados 1 0867 personas completaron la medición; 69,7 % (IC95 % 66,9 a 68,9) de la población reporto estar en “salud completa”; la mayor proporción de personas valoraronsu salud por encima de 80 puntos. La presencia de “moderado dolor o malestar”, seguida de estar “moderadamente angustiado o deprimido” fueron las alteraciones más frecuentes. Los adultos jóvenes tienden a valorar mejor su salud que los adultosmayores. No hay diferencias en la percepción de la salud entre regiones del país.Conclusiones La calidad de vida relacionada con salud en la población colombiana es mayor de 80 puntos en una escala de 1 a 100. Las alteraciones como angustia y depresión y la percepción del dolor, fueron las más comúnmente reportadas por los colombianos. La situación de pobreza y el bajo nivel educacional son determinantes de la valoración que hacen los colombianos de su CVrS.
Dynamics of markers of markers of acute kidney injury when using epidural block during resection under warm ischemia
Authors: Kit O. I. , Frantsiyants E. M. , Rozenko D. A. , Ushakova N. D. , Dimitriadi S. N. , Pogorelova Yu. A. , Cheryarina N. D. , Kozlova L. S. , Boyko K. P. , Gurnak V. V. 
Published: January 2018

Objective: to investigate the time course of changes in the early biomarkers of acute kidney injury in patients with clinically localized cancer during partial nephrectomy, as electively indicated, under thermal ischemia with prior epidural block.Materials and methods. To analyze the nephroprotective effect of an epidural block in kidney resection with warm ischemia, markers of acute kidney injury (cystatin C, interleukin 18, NGAL, L-FABP and KIM-1) were studied by ELISA in the blood and urine of 35 patients with local cancer with an epidural block (main group) and 37 patients with local cancer without an epidural block (control group) before surgery and 40 min after its beginning and on days 1 and 3 of the postoperative period. All patients were divided into 2 groups by the levels of cystatin C in the blood serum: 1000 ng/ml and lower, and over 1000 ng/ml.Results. Epidural block during the perioperative period in kidney resection with warm ischemia for patients with local cancer had an obvious nephroprotective effect allowing maintaining the initial renal functional parameters, in contrast to the standard disease management.
Aspectos críticos para aplicar con éxito el modelo flipped classroom a la enseñanza de la inmunología: resultados de 5 años de experiencias en la Universidad de Alcalá
Authors: Prieto Martín Alfredo , Díaz Martín David , Lara Aguilera Isabel , Monserrat Sanz Jorge , Oliva Martín Raquel , Barbarroja Escudero José 
Published: January 2018

<p>Resumen</p><p>Profesores de inmunología de la Universidad de Alcalá hemos implementado en los últimos cinco años el modelo de aula inversa en tres asignaturas del grado de Biología Sanitaria. El porcentaje de alumnos que estudiaron los materiales instructivos (documentos y vídeos) antes de que los temas fuesen tratados en clase ha aumentado desde valores minoritarios en los primeros años a porcentajes cercanos al 100% en los últimos años. La calificación media obtenida por los alumnos en las pruebas de evaluación del aprendizaje ha mejorado en las tres asignaturas en más de una desviación estándar con respecto a la que se obtenía con metodologías expositivas tradicionales antes de la implantación del modelo de aprendizaje inverso. Los porcentajes de alumnos que fracasan han disminuido y han aumentado los porcentajes de alumnos que alcanzan un nivel de maestría (calificación ¿8 en una escala de diez). Los alumnos reconocen desarrollar competencias con las actividades realizadas en los seminarios. El grado de satisfacción de los alumnos también ha aumentado. Concluimos que con el modelo inverso los alumnos universitarios dedican más trabajo no presencial al estudio de sus asignaturas y a consecuencia de ello sus calificaciones en la pruebas de evaluación del aprendizaje mejoran significativamente</p><p> </p><p>Abstract</p><p>Immunology teachers form Alcala’s University implementes flipped classroom model in the last five years into three immunology courses in sanitary biology university degree. The percentage of students that studied the instructive materials (documents and videos) before class has increased from minority values in the first years to percentages close to 100% in the last years. The mean grade obtained by the classes in the learning assessment exams has increased in the three courses in more than one standard deviation with respect to the original mean obtained in each course with traditional expositive methods before the implementation of the flipped learning model. The percentages of failed students have decreased and those of students that attain mastery levels (grades ¿80% of the maximum grade) have increased. The students recognize that the flipped model helps them to develop competencies in the activities developed in the seminars. The degree of satisfaction with the teaching has also increased We can conclude that university students thanks to the flipped model devote more time of work to the study of flipped courses and as a consequence of this increase in study they learn more and obtain increased grades in the learning assessment exams.</p>