bluuebunny/crossref_metadata_2025 huggingface dataset:
La evaluación formativa en los escenarios de educación superior
Authors: Sánchez Giraldo Diana Clemencia , Escobar Hoyos Gladys
Published: October 2016

Este artículo aborda la evaluación formativa en los escenarios de educación superior, inicialmente, desde la reflexión teórica de la evaluación como proceso fundamental en el sistema educativo, reconociendo su incidencia en los procesos de enseñanza y aprendizaje; estableciendo de manera adecuada, las acciones pedagógicas de los docentes para enriquecer los aprendizajes de los estudiantes; y valorando el rol que desempeña el docente y estudiante, quienes hoy día son reconocidos como actores principales en el ámbito educativo y son los que deben hacer de la evaluación un proceso que fortalezca los caminos que se transitan en la adquisición y generación de conocimiento.
Representaciones sociales sobre el aprendizaje en inglés elemental en estudiantes del Centro de Idiomas de la Universidad de Ibagué
Authors: Velasco Morales Libia Margoth
Published: October 2016

Objetivo: revelar algunas representaciones sociales sobre el aprendizaje de inglés elemental en el estudiante del Centro de Idiomas de la Universidad de Ibagué. Metodología: estudio de carácter cualitativo y diseño etnográfico que permitió el acercamiento a la realidad seleccionada. Hallazgos: después de la recolección, análisis e interpretación de la información, se devela la asociación de las representaciones sociales con la disposición del educando, la alteración de su autoestima y de su compromiso personal, debido a metodologías previas no apropiadas, falta de reconocimiento, necesidad de un docente humano y estrategias lúdicas en el aula. Conclusión: el estudiante de este contexto educativo continúa su proceso porque admite los beneficios de saber inglés para su devenir.
Lineamientos de políticas públicas para la calidad de la educación en formación avanzada
Authors: López Ávila Carmen Rosa , Yepes Ocampo Juan Carlos
Published: October 2016

Objetivo: develar cómo los procesos formativos en investigación del programa de maestría en Educación de la Universidad de Caldas contribuyen al diseño de lineamientos de política pública sectorial para mejorar la calidad del programa. Metodología: enfoque de complementariedad utilizando métodos de investigación como el estudio de caso, etnografía reflexiva y teoría fundamentada, esto es, el procesamiento y análisis de la información se realizó con categorización axial y selectiva. Hallazgos: la adopción de lineamientos de política pública desde el Ministerio de Educación Nacional, correspondientes a la consolidación de grupos de investigación por maestrantes, desarrollo de trabajos con impacto social en escuelas y apalancamiento de recursos para formación de posgrado. Conclusiones: los procesos de investigación desarrollados en el programa inciden en la calidad de la educación.
Hacia un currículo para la formación política y la construcción de paces en Colombia
Authors: Bustamante Sierra Vizney Leonardo
Published: October 2016

En este escrito se realiza una apuesta teórica para plantear los fundamentos que se deben tener en cuenta en la estructuración de una propuesta de currículo que propenda por la formación política y la construcción de paces en Colombia. Inicialmente se analizan las diferencias conceptuales que existen entre las teorías del currículo y los discursos sobre el currículo, con el fin de determinar cuál de los dos caminos resulta más apropiado para alcanzar el propósito antes planteado. Luego, se hace una crítica a la manera convencional de estructurar los currículos desde los poderes hegemónicos y se resalta la importancia de vincular las experiencias de los sobrevivientes del conflicto interno armado en la estructuración de propuestas de currículo para la formación política y la construcción de paces, como un aporte que permite potenciar el desarrollo legal y curricular propuesto por el gobierno nacional para la llamada Cátedra de la Paz.
Deserción/permanencia escolar: comprensiones vinculares entre la educación superior y la educación preliminar
Authors: Valdés Henao Carolina , Peláez Alarcón Rodrigo
Published: October 2016

La deserción/permanencia en la Universidad se constituye en un dilema que pretende comprenderse en este artículo. El ejercicio produce una reflexión desde este problema; está fundamentado en una hipótesis representada en que la decisión de permanecer o de abandonar la universidad, casi siempre significa un proceso concurrente a través del tiempo, es decir, que se ha ido gestando desde la educación que le es preliminar -la casa, la escuela, el colegio- y no una situación emergida al final, en un punto dado de la historia estudiantil. Por ello, se genera un análisis desde diferentes puntos de vista, que permitirá identificar la confluencia de factores desde procesos educativos previos en la determinación final de irse o quedarse en la educación superior, razones que justifican una mirada poliscópica del fenómeno, que se identifica en un proceso que además de verse reflexivo, se aprecia multidisciplinar.
El proceso formativo-readaptativo para menores infractores: un acercamiento al panorama mexicano
Authors: Lindquist Sánchez Ricardo
Published: October 2016

En este artículo se presenta una revisión breve sobre la situación actual de los procesos formativos-readaptativos al interior de los centros de internamiento y tratamiento para adolescentes en México. Al mismo tiempo, se analizan algunos de los mecanismos y rutas estratégicas que se han desarrollado en otros países para garantizar la calidad y pertinencia de este proceso, tomando en cuenta las principales discusiones teóricas y las recomendaciones emitidas por organismos internacionales.
La gestión educativa y el mejoramiento continuo en instituciones para el trabajo y el desarrollo humano
Authors: Jiménez López Andrés Felipe , Puerta García Angélica Milena , Giraldo Arango Paula Andrea , Vallejo Leidy Natalia
Published: October 2016

Objetivo: aportar en la construcción de un conocimiento que permita a las instituciones para el trabajo y el desarrollo humano, comprender la importancia de los procesos de mejoramiento articulados a la gestión de su proyecto educativo institucional. Metodología: investigación cualitativa de tipo descriptivo, la cual permite abordar con pertinencia los procesos de gestión de las instituciones, sus limitaciones y relevancias a la luz de diferentes referentes. Hallazgos: los procesos de mejoramiento continuo son relevantes en las instituciones educativas porque a través de ellos se logra una cultura de calidad y autonomía. Conclusiones: la reflexión permite postular la gestión y el mejoramiento como trayecto de posibilidad para la calidad en la educación para el trabajo y el desarrollo humano desde una perspectiva de innovaciones educativas.
Aminobenzene sulfonic acid-functionalized carbon nanotubes on glassy carbon electrodes for probing traces of mercury(II)
Authors: Lv Jing , Tang Ying , Teng Liumei , Tang Dianyong , Zhang Jin
Published: October 2016

This work reports on a new electrochemical sensing strategy for quantitative
monitoring of inorganic mercury(II) (Hg2+) in the contaminated water by
immobilization of poly(p-aminobenzene sulfonic acid)-functionalized
single-walled carbon nanotubes on a glassy carbon electrode. The
electrochemical behavior of the resulting sensor was assessed and optimized.
Under optimal conditions, the sensor displayed good electrocatalytic
responses to Hg2+ reduction ranging from 1.0 ?mol L-1 to 0.5 mmol L-1 with a
detection limit of 0.5 ?mol L-1. The selectivity against other potentially
interfering ions and the applicability in contaminated water samples have
also been evaluated.
Synthesis, spectral studies and in vitro antimicrobial activity of some new di/tri-organotin (IV) complexes of Schiff bases derived from 2-benzoylpyridine
Authors: Khatkar Priyanka , Asija Sonika , Singh Namita
Published: October 2016

In the present work, a series of twenty-four organotin (IV) complexes of the
type [R2SnLCl, R3SnL] have been synthesized by the condensation of
2-benzoylpyridine Schiff bases with R2SnCl2, R3SnCl (R= Me, n-Bu, Ph) in 1:1
molar ratio. These complexes were well characterized by IR, 1H, and 13C,
119Sn NMR, XRD and mass spectral techniques. In the search for biologically
more effective antimicrobial agents, all the synthesized ligands and
organotin complexes were evaluated for their in vitro antimicrobial
activities against two Gram positive and two Gram negative bacteria, and two
fungal strains by serial dilution method. The results of spectral data
revealed that the complexes formed were hexacoordinated with tridentate
ligands which coordinated through azomethine N, pyridine N and carboxylate O
ligation sites. The ligands on co-ordination with tin metal showed a
discernible augmentation in biocidal activity, however, the Ph and Bu
complexes were found to be more intoxicating. The results revealed that the
synthesized complexes were more noxious towards Gram positive strains as
compared to Gram negative strains which may be attributed to the presence of
an outer lipid membrane of lipopolysaccharides.
The effects of objectification on stereotypical perception and attractiveness of women and men
Authors: Rollero Chiara , Tartaglia Stefano
Published: October 2016

Objectification has been found to have negative consequences on how women are
perceived by others. However in an even more sexualized world being a sexual
object has become a standard of physical attractiveness for women and
objectification could foster a positive evaluation increasing attractiveness.
Although Objectification Theory was originally grounded in women?s
experiences, some research points to the promise of Objectification Theory
for understanding men?s experiences as well. The aim of the paper was
investigating the effects of objectification on gender stereotypes and
perceived attractiveness. Two experimental studies were conducted. Study 1
(N=139) investigated the effects of objectification on female targets. Study
2 (N=146) investigated the effects on male targets. In both studies three
dependent variables were considered: communality, agency, and attractiveness.
Results of Study 1 revealed that objectified women were considered less
communal and more attractive. Moreover, men perceived objectified women less
agentic than the non-objectified ones, whereas women showed the opposite
perception. Concerning men, objectification has a limited impact, as it
interacted with participants? gender only on communality: men considered
objectified males more communal than the non-objectified ones, while women
revealed the opposite perception.
Depressive, anxious and somatization symptoms and quality of life in stress-related disorders
Authors: Colovic Olga , Lecic-Tosevski Dusica , Mandic-Maravic Vanja , Toskovic Oliver
Published: October 2016

Background/Aim. Recent studies have shown a significant relation of the post-traumatic stress disorder and impairment of quality of life. The research on the relations of other stress-related disorders and quality of life is scarce. The aim of this re-search was to determine which symptoms within the stress-related disorders (depressive, anxious and somatization) have the strongest effect on the quality of life decrease. Methods. The study group comprised 80 subjects who have developed a certain stress-related disorder. The diagnosis was made based on the International Classification of Diseases (ICD-10) criteria. Manchester Short Assessment Quality of Life Scale (MANSA) and Symptom Check List-90 Revised (SCL-90-R) were administered. Results. The presence of all three types of symptoms (depressive, anxious or somatization) was in negative correlation with the quality of life, contributing to the variation of quality of life with 40%. Depressive symptoms had the greatest impact on the quality of life impairment. Conclusion. When it comes to stress-related disorders, the quality of life is mostly impaired by depressive symptoms. Target therapeutic interventions aimed at depressive symptoms might have a significant effect on the quality of life improvement in the person who developed stress-related disorders.
Effects of Extracurricular Participation During Middle School on Academic Motivation and Achievement at Grade 9
Authors: Im Myung Hee , Hughes Jan N. , Cao Qian , Kwok Oi-man
Published: October 2016

We investigated the effect of participating in two domains of extracurricular activities (sports and performance arts/clubs) in Grades 7 and 8 on Grade 9 academic motivation and letter grades, above baseline performance. Participants were 483 students (55% male; 33% Euro-American, 25% African American, and 39% Latino). Propensity score weighting controlled for potential confounders in all analyses. Delayed (Grade 8 only) and continuous participation (Grades 7 and 8) in sports predicted competence beliefs and valuing education; delayed and continuous participation in performance arts/clubs predicted teacher-rated engagement and letter grades. Benefits of participation were similar across gender and ethnicity; however, Latino youth were least likely to participate in extracurricular activities. Implications for reducing ethnic and income disparities in educational attainment are discussed.
IL-9 Inhibits Viral Replication in Coxsackievirus B3-Induced Myocarditis
Authors: Yu Miao , Long Qi , Li Huan-Huan , Liang Wei , Liao Yu-Hua , Yuan Jing , Cheng Xiang
Published: October 2016

Myocardial injuries in viral myocarditis (VMC) are caused by viral infection and related autoimmune disorders. Recent studies suggest that IL-9 mediated both antimicrobial immune and autoimmune responses in addition to allergic diseases. However, the role of IL-9 in viral infection and VMC remains controversial and uncertain. In this study, we infected Balb/c mice with Coxsackievirus B3 (CVB3), and found that IL-9 was enriched in the blood and hearts of VMC mice on days 5 and 7 after virus infection. Most of IL-9 was secreted by CD8+ T cells on day 5 and CD4+ T cells on day 7 in the myocardium. Further, IL-9 knockout exacerbated cardiac damage following CVB3 infection, along with a sharp increase in viral replication and IL-17a expression, as well as a decrease in TGF-β. In contrast, the repletion of IL-9 in Balb/c mice with CVB infection induced the opposite effect. Studies in vitro further revealed that IL-9 directly inhibited viral replication in cardiomyocytes by reducing coxsackie and adenovirus receptor expression, which might be associated with upregulation of TGF-β autocrine effect in these cells. However, IL-9 had no direct effect on apoptosis in cardiomyocytes. Our data indicated that IL-9 played a protective role in disease progression by inhibiting CVB3 replication in the early stages of VMC.
Boosting Tumor-Specific Immunity Using PDT
Authors: Maeding Nicole , Verwanger Thomas , Krammer Barbara
Published: October 2016

Photodynamic therapy (PDT) is a cancer treatment with a long-standing history. It employs the application of nontoxic components, namely a light-sensitive photosensitizer and visible light, to generate reactive oxygen species (ROS). These ROS lead to tumor cell destruction, which is accompanied by the induction of an acute inflammatory response. This inflammatory process sends a danger signal to the innate immune system, which results in activation of specific cell types and release of additional inflammatory mediators. Activation of the innate immune response is necessary for subsequent induction of the adaptive arm of the immune system. This includes the priming of tumor-specific cytotoxic T lymphocytes (CTL) that have the capability to directly recognize and kill cells which display an altered self. The past decades have brought increasing appreciation for the importance of the generation of an adaptive immune response for long-term tumor control and induction of immune memory to combat recurrent disease. This has led to considerable effort to elucidate the immune effects PDT treatment elicits. In this review we deal with the progress which has been made during the past 20 years in uncovering the role of PDT in the induction of the tumor-specific immune response, with special emphasis on adaptive immunity.
Crown-of-Thorns Starfish Larvae Can Feed on Organic Matter Released from Corals
Authors: Nakajima Ryota , Nakatomi Nobuyuki , Kurihara Haruko , Fox Michael , Smith Jennifer , Okaji Ken
Published: October 2016

Previous studies have suggested that Crown-of-Thorns starfish (COTS) larvae may be able to survive in the absence of abundant phytoplankton resources suggesting that they may be able to utilize alternative food sources. Here, we tested the hypothesis that COTS larvae are able to feed on coral-derived organic matter using labeled stable isotope tracers (13C and 15N). Our results show that coral-derived organic matter (coral mucus and associated microorganisms) can be assimilated by COTS larvae and may be an important alternative or additional food resource for COTS larvae through periods of low phytoplankton biomass. This additional food resource could potentially facilitate COTS outbreaks by reducing resource limitation.
Central and Eastern European Spring Pollen Allergens and Their Expression Analysis—State of the Art
Authors: Žiarovská Jana , Zeleňáková Lucia
Published: October 2016

Spring pollinosis has become a part of life for many people throughout the world. A wide range of knowledge about the allergenic potential of individual pollen allergen types is documented well, but the starting point of the pollen allergens expression regulation in plants itself is still not fully answered. Expression analysis of pollen allergens does not yet have any specific protocols or methods developed, despite a very good sequence background available in public bioinformatics databases. However, research in this area of interest has a great application potential for breeding and biotechnology of allergenic plants that may benefit from the knowledge of the expression of allergen coding genes in individual varieties or genotypes. Here, a brief review of up-to-date knowledge about the coding sequences of central and eastern European spring pollen allergens is introduced together with real-time based analysis of the expression of two of the main pollen allergens–PR protein type and profilin type of birch and hazelnut.
Identification of Long Non‐Coding RNAs Deregulated in Multiple Myeloma Cells Resistant to Proteasome Inhibitors
Authors: Malek Ehsan , Kim Byung‐Gyu , Driscoll James
Published: October 2016

While the clinical benefit of proteasome inhibitors (PIs) for multiple myeloma (MM) treatment remains unchallenged, dose‐limiting toxicities and the inevitable emergence of drug resistance limit their long‐term utility. Disease eradication is compromised by drug resistance that is either present de novo or therapy‐induced, which accounts for the majority of tumor relapses and MM‐related deaths. Non‐coding RNAs (ncRNAs) are a broad class of RNA molecules, including long non‐coding RNAs (lncRNAs), that do not encode proteins but play a major role in regulating the fundamental cellular processes that control cancer initiation, metastasis, and therapeutic resistance. While lncRNAs have recently attracted significant attention as therapeutic targets to potentially improve cancer treatment, identification of lncRNAs that are deregulated in cells resistant to PIs has not been previously addressed. We have modeled drug resistance by generating three MM cell lines with acquired resistance to either bortezomib, carfilzomib, or ixazomib. Genome‐wide profiling identified lncRNAs that were significantly deregulated in all three PIresistant cell lines relative to the drug‐sensitive parental cell line. Strikingly, certain lncRNAs deregulated in the three PI‐resistant cell lines were also deregulated in MM plasma cells isolated from newly diagnosed patients compared to healthy plasma cells. Taken together, these preliminary studies strongly suggest that lncRNAs represent potential therapeutic targets to prevent or overcome drug resistance. More investigations are ongoing to expand these initial studies in a greater number of MM patients to better define lncRNAs signatures that contribute to PI resistance in MM.
Influence of Bisphenol A on Type 2 Diabetes Mellitus
Authors: Provvisiero Donatella , Pivonello Claudia , Muscogiuri Giovanna , Negri Mariarosaria , De Angelis Cristina , Simeoli Chiara , Pivonello Rosario , Colao Annamaria
Published: October 2016

Bisphenol A (BPA) is an organic synthetic compound employed to produce plastics and epoxy resins. It is used as a structural component in polycarbonate beverage bottles and as coating for metal surface in food containers and packaging. The adverse effects of BPA on human health are widely disputed. BPA has been recently associated with a wide variety of medical disorders and, in particular, it was identified as potential endocrine-disrupting compound with diabetogenic action. Most of the clinical observational studies in humans reveal a positive link between BPA exposure, evaluated by the measurement of urinary BPA levels, and the risk of developing type 2 diabetes mellitus. Clinical studies on humans and preclinical studies on in vivo, ex vivo, and in vitro models indicate that BPA, mostly at low doses, may have a role in increasing type 2 diabetes mellitus developmental risk, directly acting on pancreatic cells, in which BPA induces the impairment of insulin and glucagon secretion, triggers inhibition of cell growth and apoptosis, and acts on muscle, hepatic, and adipose cell function, triggering an insulin-resistant state. The current review summarizes the available evidences regarding the association between BPA and type 2 diabetes mellitus, focusing on both clinical and preclinical studies.
Methanol Extract from Anogeissus leiocarpus (DC) Guill. et Perr. (Combretaceae) Stem Bark Quenches the Quorum Sensing of Pseudomonas aeruginosa PAO1
Authors: Ouedraogo Vincent , Kiendrebeogo Martin
Published: October 2016

Background: Due to its extensive arsenal of virulence factors and inherent resistance to antibiotics, Pseudomonas aeruginosa is a threat particularly in immunocompromised patients. Considering the central role of quorum sensing in the production of virulence factors, inhibition of bacterial communication mechanism constitute an opportunity to attenuate pathogenicity of bacteria resistant to available antibiotics. Our study aimed to assess the anti-quorum sensing activity of Anogeissus leiocarpus, traditionally used in Burkina Faso, for the treatment of infected burn wounds. Methods: Investigations were carried out on methanol extract from A. leiocarpus stem bark. The reporter strains Chromobacterium violaceum CV026 and P. aeruginosa PAO1 derivatives were used to evidence any interference with the bacterial quorum sensing and expression of related genes. P. aeruginosa PAO1 was used to measure the impact on pyocyanin production. Results: At a sub-inhibitory concentration (100 µg/mL), A. leiocarpus methanol extract quenched the quorum sensing mechanism of P. aeruginosa PAO1 by down-streaming the rhlR gene, with a subsequent reduction of pyocyanin production. Moreover, the antioxidant polyphenols evidenced are able to reduce the oxidative stress induced by pyocyanin. Conclusion: The antioxidant and anti-quorum sensing activities of A. leiocarpus stem bark could justify its traditional use in the treatment of infected burn wounds.
From WSN towards WoT: Open API Scheme Based on oneM2M Platforms
Authors: Kim Jaeho , Choi Sung-Chan , Ahn Il-Yeup , Sung Nak-Myoung , Yun Jaeseok
Published: October 2016

Conventional computing systems have been able to be integrated into daily objects and connected to each other due to advances in computing and network technologies, such as wireless sensor networks (WSNs), forming a global network infrastructure, called the Internet of Things (IoT). To support the interconnection and interoperability between heterogeneous IoT systems, the availability of standardized, open application programming interfaces (APIs) is one of the key features of common software platforms for IoT devices, gateways, and servers. In this paper, we present a standardized way of extending previously-existing WSNs towards IoT systems, building the world of the Web of Things (WoT). Based on the oneM2M software platforms developed in the previous project, we introduce a well-designed open API scheme and device-speciﬁc thing adaptation software (TAS) enabling WSN elements, such as a wireless sensor node, to be accessed in a standardized way on a global scale. Three pilot services are implemented (i.e., a WiFi-enabled smart ﬂowerpot, voice-based control for ZigBee-connected home appliances, and WiFi-connected AR.Drone control) to demonstrate the practical usability of the open API scheme and TAS modules. Full details on the method of integrating WSN elements into three example systems are described at the programming code level, which is expected to help future researchers in integrating their WSN systems in IoT platforms, such as oneM2M. We hope that the ﬂexibly-deployable, easily-reusable common open API scheme and TAS-based integration method working with the oneM2M platforms will help the conventional WSNs in diverse industries evolve into the emerging WoT solutions.
Device Centric Throughput and QoS Optimization for IoTsin a Smart Building Using CRN-Techniques
Authors: Aslam Saleem , Hasan Najam , Shahid Adnan , Jang Ju , Lee Kyung-Geun
Published: October 2016

The Internet of Things (IoT) has gained an incredible importance in the communication and networking industry due to its innovative solutions and advantages in diverse domains. The IoT’ network is a network of smart physical objects: devices, vehicles, buildings, etc. The IoT has a number of applications ranging from smart home, smart surveillance to smart healthcare systems. Since IoT consists of various heterogeneous devices that exhibit different trafﬁc patterns and expect different quality of service (QoS) in terms of data rate, bit error rate and the stability index of the channel, therefore, in this paper, we formulated an optimization problem to assign channels to heterogeneous IoT devices within a smart building for the provisioning of their desired QoS. To solve this problem, a novel particle swarm optimization-based algorithm is proposed. Then, exhaustive simulations are carried out to evaluate the performance of the proposed algorithm. Simulation results demonstrate the supremacy of our proposed algorithm over the existing ones in terms of throughput, bit error rate and the stability index of the channel.
One Step Assembly of Thin Films of Carbon Nanotubes on Screen Printed Interface for Electrochemical Aptasensing of Breast Cancer Biomarker
Authors: Nawaz Muhammad , Rauf Sajid , Catanante Gaelle , Nawaz Mian , Nunes Gilvanda , Marty Jean , Hayat Akhtar
Published: October 2016

Thin films of organic moiety functionalized carbon nanotubes (CNTs) from a very well-dispersed aqueous solution were designed on a screen printed transducer surface through a single step directed assembly methodology. Very high density of CNTs was obtained on the screen printed electrode surface, with the formation of a thin and uniform layer on transducer substrate. Functionalized CNTs were characterized by X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and Brunauer–Emmett– Teller (BET) surface area analyzer methodologies, while CNT coated screen printed transducer platform was analyzed by scanning electron microscopy (SEM), atomic force microscopy (AFM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The proposed methodology makes use of a minimum amount of CNTs and toxic solvents, and is successfully demonstrated to form thin films over macroscopic areas of screen printed carbon transducer surface. The CNT coated screen printed transducer surface was integrated in the fabrication of electrochemical aptasensors for breast cancer biomarker analysis. This CNT coated platform can be applied to immobilize enzymes, antibodies and DNA in the construction of biosensor for a broad spectrum of applications.
Tibial plateau levelling osteotomy in eleven cats with cranial cruciate ligament rupture
Authors: Bielecki Malgorzata , Scharvogel Stefan , Meiler Diane , Mindner Julia
Published: October 2016

Objective: To report the surgical procedure, intra- and postoperative complications, and short-term follow-up of tibial plateau levelling osteotomy (TPLO) in feline patients with cranial cruciate ligament (CrCL) rupture using a 2.0 or 2.4 mm Synthes® TPLO plate.

Study design: Prospective study.

Material and methods: Eleven cats with a CrCL rupture were included in the study. Inspection of intra-articular structures was carried out via arthroscopy or arthrotomy. Each patient was re-examined one and 10 days after surgery. Orthopaedic examination and follow-up radiographs were obtained four to 12 weeks postoperatively.

Results: Two meniscopathies and one partial CrCL rupture were detected. Minor intra- operative complications occurred in five cats (suboptimal positioning of the plate [n = 3], proximal fibular fracture [n = 1], a visible osteotomy gap [n = 1]). Postoperatively, minor complications were detected in three cats (mild patellar desmitis [n = 2], superficial wound infection [n = 1]). No additional surgical reintervention, graded as major complication, was necessary. Four to eight weeks postoperatively, all cats showed no to mild intermittent lameness. Complete bone union was apparent within four to 12 weeks. Owners reported a high level of comfort and mobility during the last follow-up.

Conclusion: The preliminary results of this study support the use of TPLO in cats, but larger case numbers are needed to evaluate its practicability, as well as long-term outcome (>1 year), especially evaluating the development and the clinical relevance of osteoarthritis.

Supplementary Material to this article is available online at http://dx.doi.org/10.3415/VCOT-15-11-0184.
Pullout strength of monocortical and bicortical screws in meta -physeal and diaphyseal regions of the canine humerus
Authors: Alan Syrcle Jason , Ball John , Elder Steven , Michele Gambino Jennifer , Griffin Russell , McLaughlin Ronald , Paul Vaughn Denty
Published: October 2016

Objective: Monocortical screws are commonly employed in locking plate fixation, but specific recommendations for their placement are lacking and use of short monocortical screws in metaphyseal bone may be contra indicated. Objectives of this study were to evaluate axial pullout strength of two different lengths of monocortical screws placed in various regions of the canine humerus compared to bicortical screws, and to derive cortical thickness and bone density values for those regions using quantitative computed tomography analysis (QCT).

Methods: The QCT analysis was performed on 36 cadaveric canine humeri for six regions of interest (ROI). A bicortical, short monocortical, or 50% transcortical 3.5 mm screw was implanted in each ROI and axial pullout testing was performed.

Results: Bicortical screws were stronger than monocortical screws in all ROI except the lateral epicondylar crest. Short monocortical metaphyseal screws were weaker than those placed in other regions. The 50% transcortical screws were stronger than the short monocortical screws in the condyle. A linear relationship between screw length and pull-out strength was observed.

Clinical significance: Cortical thickness and bone density measurements were obtained from multiple regions of the canine humerus using QCT. Use of short monocortical screws may contribute to failure of locking plate fixation of humeral fractures, especially when placed in the condyle. When bicortical screw placement is not possible, maximizing monocortical screw length may optimize fixation stability for distal humeral fractures.
Electric field induced structural colour tuning of a silver/titanium dioxide nanoparticle one-dimensional photonic crystal
Authors: Aluicio-Sarduy Eduardo , Callegari Simone , Figueroa del Valle Diana Gisell , Desii Andrea , Kriegel Ilka , Scotognella Francesco
Published: October 2016

An electric field is employed for the active tuning of the structural colour in photonic crystals, which acts as an effective external stimulus with an impact on light transmission manipulation. In this work, we demonstrate structural colour in a photonic crystal device comprised of alternating layers of silver nanoparticles and titanium dioxide nanoparticles, exhibiting spectral shifts of around 10 nm for an applied voltage of only 10 V. The accumulation of charge at the metal/dielectric interface with an applied electric field leads to an effective increase of the charges contributing to the plasma frequency in silver. This initiates a blue shift of the silver plasmon band with a simultaneous blue shift of the photonic band gap as a result of the change in the silver dielectric function (i.e. decrease of the effective refractive index). These results are the first demonstration of active colour tuning in silver/titanium dioxide nanoparticle-based photonic crystals and open the route to metal/dielectric-based photonic crystals as electro-optic switches.
The influence of pavement degradation caused by cyclic loading on its failure mechanisms
Authors: Gajewski Marcin , Jemioło Stanisław
Published: October 2016

In this paper, a simple method is proposed to estimate capacity of multilayered road structure including the degradation of the elastic and plastic properties of the constituent materials. In the study boundary value problem modeling interaction of wheels with road surface layer in the frame of large deformation theory for elastic-plastic materials was formulated. Plastic properties of the material were described by the flow rule un-associated with yield condition. The Coulomb-Mohr yield condition was assumed and the potential for plasticity is its smooth approximation. In addition, in constitutive modeling the dependence of the Young’s modulus and cohesion of the material from the number of cycles is taken into account. This paper presents qualitative findings in relation to mechanical behavior of the road structure, i.e., for example, the development of plastic zones with increasing load for un-degraded and degraded materials. In addition, a parametric study of the influence of the degradation ratio of the elasticity and plasticity properties for road structure failure mechanism (limit load value) was made.
The effect of synthetic zeolite admixture on the durability of concrete paving blocks
Authors: Girskas Giedrius , Nagrockienė Džigita , Skripkiūnas Gintautas
Published: October 2016

Concrete paving blocks that were started to be used in the last century have become very popular. They became an alternative to the natural stone. Concrete paving blocks are used for the paving of pedestrian and vehicle zones. Durability is one of the main characteristics in the production of high-quality concrete paving blocks in the Baltic region climate zone. The article describes tests with concrete paving blocks, the top layer of which contains 5% of synthetic zeolite admixture obtained by means of low temperature synthesis in laboratory conditions. This zeolite admixture is obtained from aluminium fluoride production waste. The durability of concrete paving blocks was tested according to abrasion resistance, tensile splitting strength, absorption and frost resistance. The test results revealed that 5% of zeolite admixture added to the top layer of concrete paving blocks reduce the absorption, increase the tensile splitting strength by more than 10%, and decrease abrasion by 6.5%. The zeolite admixture used in concrete paving blocks reduces the scaling about 4 times after 28 freeze-thaw cycles when 3% NaCl is used as the freezing solution. The tests revealed that synthetic zeolite admixture can be used in concrete elements production by means of vibropressing (pavement elements) to increase their durability.
The effect of compaction degree and binder content on performance properties of asphalt mixtures
Authors: Hýzl Petr , Dašek Ondřej , Varaus Michal , Stehlík Dušan , Coufalík Pavel , Dašková Jaroslava , Krčmová Iva , Nekulova Pavla
Published: October 2016

The effect of compaction degree and binder content on performance properties of asphalt mixtures of an asphalt concrete type for wearing and binder courses are described in the paper. Measurements of stiffness modulus by two-point bending test on trapezoidal shaped specimens, fatigue characteristics, and resistance against frost cracking by thermal stress restrained specimen test have been performed on selected asphalt mixtures. The main aim of the experimental part was to determine to what extent the performance properties of the individual mixtures will be affected when decreasing the compaction degree by 3% in comparison to the optimal design, i.e. from 100% to 97% degree of compaction. This decrease simulates incomplete degree of compaction of courses during pavement construction, which is common and accepted during acceptance tests and it is in accordance with the Czech regulations. Then, the decreased dosage of binder content by 0.5% is simulated, which is the boundary parameter for lowering the binder content within the acceptance test. The results of performance testing have been affected by lower compaction degree and lower binder content have been used as course parameters and integrated into a mathematical model of a commonly used pavement construction, which is presented by a multi-layered linear elastic model based on the use of Burmister‘s equations. The outcome of the paper is a description of the effect of lower degree of compaction and lower binder dosage on the lifetime of a pavement construction.
Free-Riding Problem in Alliance
Authors: Odehnal Jakub
Published: October 2016

Long-term cuts in military expenditures of European allied countries caused growing differences within the Alliance which can be seen in uneven sharing of military burden and in behaviour called free-riding. The aim of this contribution is to define possible approaches to the freeriding identification and to analyse military expenditure development in relation to conclusions and recommendations declared at the NATO Summit in 2014. The results of military expenditure analysis identify only a small group of countries which, from a long-term point of view, follow the recommendations of the Alliance in the form of allocating a corresponding amount as percentage of GDP and in the form of a recommended structure of military expenditures.
Ashley, l’enfant Bonsaï. Inhibition de la croissance d’enfants très sévèrement handicapés : une réalité ou un fantasme ?
Authors: Ouss Lisa
Published: October 2016

En 2006, l’histoire d’Ashley, enfant polyhandicapée sévère chez qui les médecins, sur la demande des parents, et après avis du comité d’éthique de l’hôpital aux États-Unis, avaient proposé un traitement inhibiteur de la croissance ainsi qu’une hystérectomie, appendicectomie et mammectomie « préventifs », avait soulevé bien des questions et passions. À distance, cet article reprend quelques-unes des questions posées par le traitement dit « d’Ashley ». Apres un rappel des faits, la présentation d’un cas similaire et des résultats d’une enquête auprès des endocrinologues, il apparaît que cette situation est loin d’être isolée. Ce qui frappe dans la lecture des articles est la quasi-absence des psychiatres et psychologues qui, pas plus que les autres, ne peuvent répondre seuls à ces questions, mais peuvent permettre de les poser autrement. Il est fondamental d’introduire dans la réflexion la dimension de la détresse des parents et des professionnels, la difficulté à évaluer certaines dimensions du développement et du psychisme des enfants gravement handicapés, d’aborder l’effroi suscité par cette histoire, la violence de la sexualisation du corps transformé, autant de dimensions fantasmatiques dont l’oubli biaise le débat. Cette situation nous invite à une pluridisciplinarité rigoureuse et ouverte.
Les passages de relais. Bien se lier pour pouvoir se délier en sécurité …
Authors: de Baracé Claire , de Saint Brieuc L'équipe du CAMSP Horizons
Published: October 2016

Issue d’un travail collaboratif, la réflexion sur les passages de relais en action médico-sociale précoce doit être une préoccupation essentielle, dès le premier accueil au camsp , et tout au long de l’accompagnement de l’enfant et de sa famille. Sécurité, mise en place d’un cocon contenant, confiance à l’intérieur de l’équipe garante de la créativité, confiance entre équipes à construire et entretenir dans un véritable travail en réseau, confiance familles-professionnels autour du projet de soins de l’enfant, appui sur les pairs, soin apportés aux rites de passage, sont les ingrédients indispensables pour permettre aux enfants et à leur famille de poursuivre leur route le plus sereinement possible malgré les épreuves.
De la petite enfance à la période de latence : une transition complexe pour l’enfant handicapé et sa famille
Authors: Dayan Clémence
Published: October 2016

Psychologue clinicienne en camsp , nous travaillons auprès d’enfants en situation de handicap âgés de 0 à 6 ans. Nous avons repéré un moment particulièrement sensible dans la vie des enfants et de leur famille : il s’agit de la période où se réfléchit l’orientation post camsp , aux alentours de 5 à 6 ans. De manière générale, à cet âge, l’enfant vit de nombreux changements, mais ceux-ci se trouvent nettement compliqués par le handicap : l’orientation pose en effet avec force la question des limites de l’enfant handicapé, notamment en termes de niveau cognitif et de difficultés d’apprentissage. Pour la famille, ressurgit tout ce qui a été vécu lors de la révélation du handicap de l’enfant : le traumatisme se réactualise et l’énigme de son futur survient comme une interrogation angoissante. L’enfant handicapé, lui, se confronte à la question fondamentale de son identité : en quoi est-il semblable et différent des autres ? La clinique montre qu’il se trouve à ce moment-là souvent en difficulté pour se situer à l’égard de ses pairs, entre vulnérabilité, expérience des moqueries et mises à l’écart de par sa fragilité, et agressivité, appréhension du pouvoir qu’il peut avoir sur l’autre. Vis-à-vis de ses parents, il doit négocier une autonomisation qui ne va pas de soi puisqu’il est toujours celui qu’il faut, et faudra, protéger. Cet article tentera d’apporter, à partir d’un cas clinique, quelques pistes de réflexion sur cette transition essentielle dans la vie des enfants, et ouvrira sur des propositions d’axes de travail pour mieux accompagner les familles dans ce contexte.
Le plus bel âge de la vie
Authors: Bessot Pom , Lefait Philippe
Published: October 2016

Un adulte est toujours l’enfant de ses parents. Assurer les prises en charge d’une jeune femme de 20 ans en situation de handicap rare est une gageure dans un pays où rien, malgré la loi, ne semble possible hors la bonne assignation. Âge symbolique, amour filial, recherche fatigante de la bonne porte d’entrée dans la société. Et rien n’est encore dit des facéties et des nécessités de la vie. Encore moins des mille façons d’y entrer, de la penser ou de la réussir. Résumons-nous : Lou a 20 ans. Et après ?
Les capitales décapitées
Authors: Fabre Daniel
Published: October 2016

Espéraza et Mazamet, respectivement capitales du chapeau de feutre et du délainage, jalonnent un axe industriel jadis prospère, depuis longtemps déjà anéanti par la déprise. Après avoir retracé la genèse capitaliste de ces centres, l’auteur s’attache à analyser les justifications et compensations qu’appelait hier leur réussite fulgurante et que suscite aujourd’hui leur écroulement. Il repère ce faisant, dans les rhétoriques déployées autour de ces capitales déchues, les germes de nouvelles ambitions capitulaires.
Hesdin, Philippeville et Charlemont
Authors: Dereymaeker Nathalie
Published: October 2016

Au cours du XVI e siècle, de nombreuses villes neuves sont créées à la frontière entre la France et les Pays-Bas espagnols. Elles sont le témoin d’un contexte de guerre dans lequel des impératifs militaires mènent à la conception de solutions bastionnées pour la fortification mais elles manifestent aussi un nouvel idéal esthétique classique développé en Italie. Cet article, en étudiant en détail l’urbanisme des villes d’Hesdin, Philippeville et Charlemont, vise à comprendre comment ces nouvelles pratiques italiennes se sont diffusées en Europe du Nord et dans quelle mesure elles y étaient appliquées. Ces villes, produits guerriers et esthétiques à la fois, sont passionnantes car leur urbanisme a dû concilier idéal théorique et impératif pratique.
Installer un lycée dans sa ville (1830-1880)
Authors: Huitric Solenn
Published: October 2016

Au cours du XIX e siècle, en France, l’État prend progressivement à sa charge des établissements d’enseignement secondaire précédemment gérés par des municipalités. C’est une mesure recherchée par les villes mais les moyens financiers alloués à cette politique sont limités. Ceci implique que deux villes d’un même département ne peuvent voir leur établissement érigé en établissement national. Cette situation engendre des concurrences entre les principales villes de treize départements. Par l’étude à l’échelle locale de ces conflits, cet article met en avant les dimensions urbaines d’une politique scolaire précise. Il propose d’analyser les processus d’entrée en concurrence, les argumentaires utilisés par les villes et le rapport entre statut urbain et intérêt d’une municipalité pour la scolarisation. Les enjeux liés aux politiques scolaires sont ainsi à mettre en lien avec les évolutions de la hiérarchie urbaine des villes moyennes.
Le tramway et la formation des Comités d’intérêt de quartier à Marseille
Authors: Kokubu Hisao
Published: October 2016

Dans les villes de province en France, les tramways ont joué le premier rôle dans le transport public urbain de la fin du XIX e siècle aux années 1930. Au cours de ces processus d’urbanisation, des associations d’habitants, les Comités d’Intérêt de Quartier (CIQ), se sont formés à Marseille comme à Lyon. La création de lignes de tramways en banlieue était l’une des principales revendications des associations de quartiers. Les CIQ suburbains et de banlieues arrivèrent même à former des fédérations, qui étaient destinées à avoir plus d’influence sur les municipalités du moment. Pourtant, comme les CIQ faisaient prévaloir essentiellement les intérêts de leurs quartiers, les associations d’habitants représentaient une expression de pratiques politiques au niveau des quartiers, englobant en leur sein des intérêts particuliers.
Virtual Machine Placement in IaaS Cloud
Authors: Khandelwal Prateek , Somani Gaurav
Published: October 2016

A crucial component of providing services over virtual machines to users is how the provider places those virtual machines on physical servers. While one strategy can offer an increased performance for the virtual machine, and hence customer satisfaction, another can offer increased savings for the cloud operator. Both have their trade-offs. Also, with increasing costs of electricity, and given the fact that the major component of the operational cost of a data center is that of powering it, green strategies also offer an attractive alternative. In this chapter, the authors will look into what kind of different placement strategies have been developed, and the kind of advantages they purport to offer.
Security and Compliance
Authors: Hinton Heather
Published: October 2016

Despite a rocky start in terms of perceived security, cloud adoption continues to grow. Users are more comfortable with the notion that cloud can be secure but there is still a lack of understanding of what changes when moving to cloud, how to secure a cloud environment, and most importantly, how to demonstrate compliance of these cloud environment for regulatory purposes. This chapter reviews the basics of cloud security and compliance, including the split of security responsibility across Cloud provider and Client, considerations for the integration of cloud deployed workloads with on-premises systems and most importantly, how to demonstrate compliance with existing internal policies and workload required regulatory standards.