bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of Stakeholder Orientation on Innovation: Evidence from a Natural Experiment
Authors: Flammer Caroline , Kacperczyk Aleksandra 
Published: November 2015

In this study, we assess the causal impact of stakeholder orientation on innovation. To obtain exogenous variation in stakeholder orientation, we exploit the enactment of state-level constituency statutes, which allow directors to consider stakeholders’ interests when making business decisions. Using a difference-in-differences methodology, we find that the enactment of constituency statutes leads to a significant increase in the number of patents and citations per patent. We further argue and provide evidence suggesting that stakeholder orientation sparks innovation by encouraging experimentation and enhancing employees’ innovative productivity. Finally, we find that the positive effect of stakeholder orientation on innovation is larger in consumer-focused and less eco-friendly industries.Data, as supplemental material, are available at http://dx.doi.org/10.1287/mnsc.2015.2229 .This paper was accepted by Lee Fleming, entrepreneurship and innovation.
Comparison and maximum principles for a class of flux-limited diffusions with external force fields
Authors: Duong Manh Hong 
Published: November 2015

Abstract
In this paper, we are interested in a general equation that has finite speed of propagation compatible with Einstein's theory of special relativity. This equation without external force fields has been derived recently by means of optimal transportation theory. We first provide an argument to incorporate the external force fields. Then, we are concerned with comparison and maximum principles for this equation. We consider both stationary and evolutionary problems. We show that the former satisfies a comparison principle and a strong maximum principle while the latter fulfils weaker ones. The key technique is a transformation that matches well with the gradient flow structure of the equation.
Inkunabelforschung am Beispiel des Speyerer Druckers Peter Drach
Authors: Schlechter Armin 
Published: November 2015

Zusammenfassung:
Peter Drach der Mittlere (1450–1504) war der wichtigste Speyerer Inkunabeldrucker. Er druckte vor allem marktgängige lateinische Werke nach, während volkssprachige Ausgaben keine große Rolle spielten. Die zum Landesbibliothekszentrum Rheinland-Pfalz gehörende Pfälzische Landesbibliothek in Speyer besitzt mit etwa 155 Ausgaben einschließlich Fragmenten eine vergleichsweise kleine Inkunabelsammlung. Von diesen gehen allein 90 Ausgaben auf Speyerer Inkunabeldrucker zurück. Der Beitrag zeigt am Beispiel der Exemplare aus der Druckerei Drach, welchen Nutzen das Wasserzeichen-Informationssystem für die Inkunabelerschließung aus Speyerer Perspektive hat.
Microgel-functionalised fibres with pH-optimised degradation behaviour – a promising approach for short-term medical applications
Authors: Fehér Katalin , Romstadt Tobias , Böhm Christian A. , Kolkenbrock Martin , Blau Maximilian F. , Kuehlwetter Jens , Molano Lopez Astrid Catalina , Pich Andrij , Hannen Julian , Bürgermeister Lisa , Schaaps Nicole , Vogt Felix , Gries Thomas , Jockenhövel Stephan 
Published: November 2015

AbstractResorbable polymers have been established for several decades in biomedical applications. The most frequently used resorbable polymers are still the aliphatic polyesters polylactides (PLA), polyglycolid (PGA) and polycaprolactone (PCL) homo- and copolymers. However, inherent pH dropping during degradation of some biomaterials may provoke inflammation and, thus, hamper the healing process. In this study we investigate the manufacturing method of microgel functionalised PLA Fibres in a dry-spinning process and the buffering effect of the poly(N-vinylcaprolactam-co-acetoacetoxyethyl methacrylate) vinylimidazole (VCL/AAEM/Vlm) microgels during the degradation of the fibres. Furthermore we examine the biocompatibility of the produced fibres and established a mathematical model to describe and analyse the pH level in the vicinity of the PLA fibre.
Retrospective evaluation of pubertal development and linear growth of girls with Turner Syndrome treated with oral and transdermal estrogen
Authors: Çakır Esra D.P. , Sağlam Halil , Eren Erdal , Özgür Taner , Tarım Ömer F. 
Published: November 2015

AbstractThe objective of the study was to evaluate the pubertal development and linear growth of Turner Syndrome (TS) girls regularly monitored in our department.The data of 13 patients with TS were evaluated retrospectively. Left hand radiograms were evaluated by three different pediatric endocrinologists to determine bone ages.Six (46.2%) of the TS girls were treated with oral estrogens, while 7 (53.8%) were treated with transdermal estrogen. The ratios of chronological age (CA) difference to bone age (BA) difference (ΔCA/ΔBA) in two groups of patients treated with estrogen were compared at the time of the last control. The ΔCA/ΔBA ratio in the transdermal estrogen-treated group was significantly higher (p=0.005). These results suggest slower BA progression in the TS girls treated with transdermal estrogen.BA advancement is less significant with transdermal estrogen, which is associated with adequate breast development.
Studies on the separation of89Sr(II) from irradiated yttria target using 4, 4′(5′) di-tert-butyl-cyclohexano-18-crown-6 (DtBuCH18C6) by solvent extraction technique
Authors: Debasish Saha  , Vithya Jayagopal , Kumar Ramalingam , Venkata Subramani Canchipuram Ramamoorthy , Vasudeva Rao Polur Ranga 
Published: November 2015

Abstract
The radioisotope 89Sr as 89SrCl2 is
medically useful for bone pain palliation and is produced in fast
reactors using the 89Y(n, p)89Sr
reaction. A procedure for isolation of the radionuclide
89Sr by chemical processing of the irradiated
Y2O3 target has been standardised and trial runs have
been carried out at the Fast Breeder Test Reactor (FBTR),
Kalpakkam. The chemical processing of the irradiated Y2O3
target involves i) the removal of target Y(III) by TBP
extraction and ii) further purification of the separated
89Sr fraction by cationic exchange chromatography. However
a selective isolation of 89Sr by the Sr-specific
crown ether makes the above chemical processing faster and relatively
simple. This work presents a study on the selective removal of
Sr from the irradiated target dissolver solution using the
Sr-specific crown ether 4,4′(5′)
di-tert-butyl-cyclohexano-18-crown-6 (DtBuCH18C6) in octanol
medium. The separation behaviour of the other impurities such as
Ce(IV), Y(III), Tb(III), Eu(III),
Zn(II), Mn(II) and Rb(I) present along with
Sr(II) in the irradiated sample was also investigated. The
method of separation by using the crown ether DtBuCH18C6 is proved to
be a potential tool for the purification of 89Sr(II)
source produced from yttria target in fast reactors.
Computerised tomographic profile of ethmoid roof on basis of keros classification among ethnic Kashmiri’s
Authors: Salroo Imran Nazir , Dar Nisar Hussain , Yousuf Aamir , Lone Kousar Sideeq 
Published: November 2015

<p class="abstract"><strong><span lang="EN-US">Background: </span></strong>The purpose of this study was to evaluate the ethmoid roof on computerized tomography of nose and paranasal sinuses of Kashmiri people and distribute them on basis of KEROS classification.</p><p class="abstract"><strong><span lang="EN-US">Methods: </span></strong>Cross sectional descriptive study, the randomly selected paranasal sinus computed tomography (PNS CT) scans coronal cuts .Total of One hundred PNS CT scans done at the SMHS Hospital from April 2015 to September 2015 were reviewed, and selected for study. The bilateral heights of the lateral lamellae of the cribriform plate were obtained, independently coded, and classified according to keros.</p><p class="abstract"><strong><span lang="EN-US">Results: </span></strong>The mean height of the lateral lamella among Kashmir’s was seen to be 5.08mm and 29% of patient’s CT PNS were classified as Keros I, 61% were classified as Keros II and 10% were classified as Keros III. There was significant difference in the distribution of Keros classification between the right and left lateral lamella. There was no significant difference in the height of the lateral lamella (t-test: p=0.98 on right side &amp; p =0.89 on left side) and the distribution of Keros classification (Fisher’s Exact test: p = 0.823) among younger (1-14 year) and older (&gt;14 year) Kashmiri age groups. There is significant difference in the height (t-test: p=0.03 on right side and p=0.03 on left side) and the distribution of Keros classification is statistically insignificant (Fishers Exact Test: p=0.11) between Kashmiri females and males.</p><p class="abstract"><strong><span lang="EN-US">Conclusions: </span></strong>Preoperative assessment of ethmoid roof anatomy and keros level is mandatory for alerting the surgeon of the potential iatrogenic injury during endoscopic sinus surgeries to minimize the grave complications during ESS.</p>
La investigación: una actividad de rutina
Authors: Guzmán Marcos Manuel 
Published: November 2015

La investigación en general es un termino que muy seguramente a la gran mayoría de las personas les llega a causar confusion o hasta rechazo, mas cuando se trata de Ia investigación científica, Ia cual se tiene como en un pedestal imaginando que es algo diafano y hasta sublime pero percibiendo a quienes logran hacer investigaci6n como personas muy experimentadas, con unas caracterfsticas muy especiales, quienes se concentran todo el tiempo detras de un gigantesco escritorio y se encierran en unos centros muy especializados de la ciencia y del saber con unos letreros muy modestos como "prohibido interrumpir... . genios pensando".
Diseño y construcción de una turbina de gas para generación de baja potencia (TGBP) con ciclo regenerativo a partir de un turbocargador
Authors: Mondragón Cediel Cesar Eduardo , Pachón Hernández Diego Fernando , Escobar Garzón Arnold , Cerpa Bernal Rafael Mauricio 
Published: November 2015

La ciudad de Cantagallo (Bolívar) en Colombia requiere 21kW de energía eléctrica para suplir las necesidades de su población ya que no tiene acceso a la red de interconexión eléctrica como muchas otras ciudades del país. La aplicación de la generación distribuida a partir de turbinas de gas de baja potencia (TGBP) para suplir estas necesidades es viable en Colombia, además las TGBP a partir de turbocargadores automotrices suplen completamente los requerimientos de la generación distribuida aislada y de soporte de la red de distribución en plantas, fábricas y edificios; por lo tanto se realiza el dise.o detallado y construcción de una TGBP que genera 30kW, cuyas características específicas y técnicas le permiten ser aplicable como sistema de Generación Distribuida en Colombia a partir de un turbocargador automotriz empleando el ciclo termodinámico regenerativo para disminuir el consumo espec.fico de combustible (SFC) y por lo tanto aumentar la eficiencia del ciclo, con sus respectivos sistemas de inyección de combustible, ignición, lubricación y de adquisición de datos. Se realiza una metodolog.a de dise.o de: TGBP con ciclo regenerativo, de c.maras de combusti.n tubulares y de intercambiadores de calor (recuperadores) empleando fuentes bibliográficas especializadas en el desarrollo de motores a reacción a nivel mundial así como software FEA, CFD y tecnologías de fabricación asequibles y encontradas en Colombia.
Manual de procedimientos de investigación de sucesos de aviación, para el grupo de investigación de accidentes de la aeronáutica civil de Colombia
Authors: Montoya Murillo Angélica 
Published: November 2015

En este trabajo de grado se analizan los conceptos e importancia de los manuales de procedimientos en la estructura de una organización y su contribución en el desarrollo de las investigaciones de accidentes. Mediante el Manual de procedimientos para el Grupo de Investigación de Accidentes de la Unidad Administrativa Especial Aeronáutica Civil, se busca generar una respuesta efectiva frente a un suceso de aviación a través de la estandarizaci.n de los procesos de Investigaci.n de Accidentes. El trabajo se enmarca dentro del tipo de investigación documental aplicada y descriptiva que se apoya en fuentes obtenidas en libros, artículos, manuales, oficios, gu.as y art.culos relacionados con la investigación de accidentes aéreos, para crear dise.os descriptivos por medio de procedimientos estándar y listas expandidas que describen los procesos involucrados en la investigación. Para lograr organizar estos procesos fue necesario estudiar y definir las tareas, así como las responsabilidades de cada uno de los miembros del grupo de investigación de accidentes para equilibrar las cargas de trabajo y crear sincronía en las fases de la investigación, diseñar formularios y listas de verificación para proporcionarle al investigador herramientas efectivas para el proceso investigativo.Como estrategia evaluativa del trabajo mismo en su fase de desarrollo, se efectuaron capacitaciones al Grupo de Investigaci.n de Accidentes de la Unidad Administrativa Especial Aeronáutica Civil, para la utilización del manual. Los resultados de la misma fueron analizados con el fin de sacar unas conclusiones y recomendaciones, las cuales corroboran la importancia de la implementación del presente manual por parte de los integrantes del Grupo.
Ciencia y tecnología, perspectiva para Colombia
Authors: Mendivil Anaya Laura 
Published: November 2015

El presente art iculo hace un recorrido por los siguientes temas: la importancia de la inversión en Ciencia y Tecnología, el panorama mundial de la inversión en Ciencia y Tecnología, así como la Ciencla y la Tecnología en Colombia, profundizando en el Sistema de Ciencia y Tecnología, el presupuesto asignado y las posibles rutas para cualificar el tema en el país.
Manual de emergencias aéreas y terrestres para servicio aéreo a territorios nacionales SATENA
Authors: Gómez Lince Julián Fernando , Támara Melo Juan Guillermo 
Published: November 2015

La seguridad aérea es un tema de preocupación mundial, recientemente en la Unión Europea (UE), se ha aprobado una drástica legislación (Reglamento (CE) N° 2111 /2005 de 14 de diciembre de 2005) para el establecimiento de normas comunes para mantener el espacio aéreo europeo libre de compañías aéreas y aeronaves que se considere no son seguras.
Diseño de las listas ABC de material consumible aplicables a las nuevas inspecciones PM-1 y PM-2 de los helicópteros
Authors: Silva Martínez Diego Hernán , Gónzalez Romero Andrés Oscar 
Published: November 2015

El proyecto de investigación se inició a partir de la implementación de un nuevo sistema de mantenimiento por parte del Comando Aéreo de Comando No. 5, siguiendo las instrucciones del boletín técnico TB-1520- 237-20-266 del Ejército de los Estados Unidos (US ARMY). Para obtener un alto grado de confiabilidad en los resultados de la investigación se utilizó la plataforma de planeamiento de recursos empresariales SAP, como fuente básica de información para el desarrollo del presente trabajo.
Technology-Enhanced instruction in learning world languages: The middlebury interactive learning program
Authors: Lake Cynthia , Ross Steven M. 
Published: November 2015

Middlebury Interactive Language (MIL) programs are designed to teach world language courses using blended and online learning for students in kindergarten through grade 12. Middlebury Interactive courses start with fundamental building blocks in four key areas of world-language study: listening comprehension, speaking, reading, and writing. As students progress through the course levels, they deepen their understanding of the target language, continuing to focus on the three modes of communication: interpretive, interpersonal, and presentational. The extensive use of authentic materials (video, audio, images, or texts) is intended to provide a contextualized and interactive presentation of the vocabulary and the linguistic structures. In the present paper, we describe the MIL program and the results of a mixed-methods survey and case-study evaluation of its implementation in a broad sample of schools. Technology application is examined with regard to MIL instructional strategies and the present evaluation approach relative to those employed in the literature.
Keywords: Middlebury Interactive Language, materials, technology.
Do teachers and students get the ed-tech products they need: The challenges of ed-tech procurement in a rapidly growing market
Authors: Morrison Jennifer , Ross Steven M. , Corcoran Roisin P. 
Published: November 2015

Ed-tech courseware products to support teaching and learning are being developed and made available for acquisition by school districts at a rapid rate.Â In this growing market, developers and providers face challenges with making their products visible to customers, while school district stakeholders must grapple with â€œdiscoveringâ€ which products of the many available best address their instructional needs.Â The present study presents the experiences with and perceptions about the procurement process from 47 superintendents representing diverse school districts in the U. S.Â Results indicate that, while improvements are desired in many aspects of the procurement process, the superintendents, overall, believe that, once desired products are identified, they are generally able to acquire them.Â Difficulties lie in tighter budgets, discovering products that are potentially the best choices, and evaluating the effectiveness of the products selected as options.Â These findings are presented and interpreted in relation to five major â€œAction Pointsâ€ in the procurement process, and also with regard to implications for evaluating how educational technology impacts K-12 instruction.Â Keywords: Ed-tech, school districts, K-12.
The effect of simulation methods in teaching physics on studentsâ€™ academic success
Authors: Hursen Cigdem , Asiksoy Gulsum 
Published: November 2015

The aim of this study is to determine the effect of simulation methods in teaching physics on studentsâ€™ academic success.70 students (35 control, 35 experimental) who studied at the Near East University Faculty of Education, in the Department of Computer Education and Educational Technology, in 2013-2104 academic year participated in this research. Mixed methods approaches, which included both qualitative and quantitative methods, were used in the research. Instructional transaction included the subject of â€œShootingâ€ in the â€œMovements on Earthâ€ unit. Statistical results of the data obtained after the application showed that students of the experimental group who were taught using simulations were more successful than the students of the control group who were taught by the traditional approach. Also, it was determined that students of the experimental group were satisfied by simulation-based Physics education.
Keywords: physics education, simulation-based education, education technology.
Implant Abutment Cleaning by Plasma of Argon: 5‐Year Follow‐Up of a Randomized Controlled Trial
Authors: Canullo Luigi , Tallarico Marco , Peñarrocha‐Oltra David , Monje Alberto , Wang Hom‐Lay , Peñarrocha‐Diago Miguel 
Published: November 2015

Background: Contamination of implant abutments could potentially influence the peri‐implant tissue inflammatory response. The aim of the present study is to assess the radiographic bone changes around customized, platform‐switched abutments placed according to the “one‐abutment‐one‐time” protocol, with and without plasma of argon cleaning treatment.Methods: Thirty healthy patients with thin gingival biotype (<1 mm) and history of periodontal disease received one maxillary implant each. Immediately before abutment connection, patients were randomly assigned to control group (cleaning protocol by steaming) or test group (plasma of argon treatment). Outcome measures were: 1) success rate of implants and prostheses; 2) biologic and prosthetic complications; 3) peri‐implant marginal bone loss (MBL); 4) esthetic and periodontal parameters; and 5) patient satisfaction.Results: Neither implants nor prostheses were lost in either group at the 5‐year follow‐up examination. Overall, both groups showed a slight amount of peri‐implant bone loss from baseline to 5 years. A statistically higher mean MBL was found in the control group compared with the test group at 6, 24, and 60 months after crown connection. Nevertheless, during the entire follow‐up period, intragroup comparison demonstrated statistically significant mean MBL in the control group, but not in the test group. The test group showed a higher mean gain at the soft tissue margin, but not for the papilla. All implants showed good periodontal parameters, with no significant differences between groups.Conclusion: Plasma of argon could be used to disinfect implant abutments before insertion to minimize future peri‐implant bone resorption.
Accelerated Adoption of Smoke-Free Laws After Ratification of the World Health Organization Framework Convention on Tobacco Control
Authors: Uang Randy , Hiilamo Heikki , Glantz Stanton A. 
Published: November 2015

Objectives. We sought to evaluate the effect of ratifying the World Health Organization Framework Convention on Tobacco Control (FCTC) on countries enacting smoke-free laws covering indoor workplaces, restaurants, and bars. Methods. We compared adoption of smoke-free indoor workplace, restaurant, and bar laws in countries that did versus did not ratify the FCTC, accounting for years since the ratification of the FCTC and for countries’ World Bank income group. Results. Ratification of the FCTC significantly (P < .001) increased the probability of smoke-free laws. This effect faded with time, with a half-life of 3.1 years for indoor workplaces and 3.8 years for restaurants and bars. Compared with high-income countries, upper-middle–income countries had a significantly higher probability of smoke-free indoor workplace laws. Conclusions. The FCTC accelerated the adoption of smoke-free indoor workplace, restaurant, and bar laws, with the greatest effect in the years immediately following ratification. The policy implication is that health advocates must increase efforts to secure implementation of FCTC smoke-free provisions in countries that have not done so.
Differential Child Maltreatment Risk Across Deployment Periods of US Army Soldiers
Authors: Taylor Christine M. , Ross Michelle E. , Wood Joanne N. , Griffis Heather M. , Harb Gerlinde C. , Mi Lanyu , Song Lihai , Strane Douglas , Lynch Kevin G. , Rubin David M. 
Published: November 2015

Objectives. We described the risk for maltreatment among toddlers of US Army soldiers over different deployment cycles to develop a systematic response within the US Army to provide families appropriate supports. Methods. We conducted a person-time analysis of substantiated maltreatment reports and medical diagnoses among children of 112 325 deployed US Army soldiers between 2001 and 2007. Results. Risk of maltreatment was elevated after deployment for children of soldiers deployed once but not for children of soldiers deployed twice. During the 6 months after deployment, children of soldiers deployed once had 4.43 substantiated maltreatment reports and 4.96 medical diagnoses per 10 000 child-months. The highest maltreatment rate among children of soldiers deployed twice occurred during the second deployment for substantiated maltreatment (4.83 episodes per 10 000 child-months) and before the first deployment for medical diagnoses of maltreatment (3.78 episodes per 10 000 child-months). Conclusions. We confirmed an elevated risk for child maltreatment during deployment but also found a previously unidentified high-risk period during the 6 months following deployment, indicating elevated stress within families of deployed and returning soldiers. These findings can inform efforts by the military to initiate and standardize support and preparation to families during periods of elevated risk.