bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimation of the Cartographic Projection and~its Application in Geoinformatics-habilitation thesis presentation
Authors: Bayer Tomáš
Published: March 2017

Modern techniques for the map analysis allow for the creation of full or partial geometric reconstruction of its content. The projection is described by the set of estimated constant values: transformed pole position, standard parallel latitude, longitude of the central meridian, and a constant parameter. Analogously the analyzed map is represented by its constant values: auxiliary sphere radius, origin shifts, and angle of rotation. Several new methods denoted as M6-M9 for the estimation of an unknown map projection and its parameters differing in the number of determined parameters, reliability, robustness, and convergence have been developed. However, their computational demands are similar. Instead of directly measuring the dissimilarity of two projections, the analyzed map in an unknown projection and the image of the sphere in the well-known (i.e., analyzed) projection are compared. Several distance functions for the similarity measurements based on the location as well as shape similarity approaches are proposed. An unconstrained global optimization problem poorly scaled, with large residuals, for the vector of unknown parameters is solved by the hybrid BFGS method. To avoid a slower convergence rate for small residual problems, it has the ability to switch between first- and second-order methods. Such an analysis is beneficial and interesting for historic, old, or current maps without information about the projection. Its importance is primarily referred to refinement of spatial georeference for the medium- and small-scale maps, analysis of the knowledge about the former world, analysis of the incorrectly/inaccurately drawn regions, and appropriate cataloging of maps. The proposed algorithms have been implemented in the new version of the detectproj software.
Group Identity, Scarification, and Poro among Liberated Africans in Sierra Leone, 1808–1819
Authors: Keefer Katrina H. B.
Published: March 2017

In this article, identity is complicated by considering examples of marks that denoted membership in the Poro society of the upper Guinea coast among the so-called Liberated Africans freed in Sierra Leone in the nineteenth century. As opposed to a correlation of ethnicity with scarification, this article demonstrates that scarification as an identifier may be understood in far more nuanced and complex ways. The article further shows the familiarity that British clerks in Freetown had concerning the Poro society. Their use of the term “purrah,” specifically to indicate body markings among Liberated Africans removed from seized vessels with no further explanation, indicates that familiarity. The article considers how scarification may continue to be used to understand origins and identity within documents originating along the upper Guinea coast, while underscoring the meanings of such body marking.
Circulating free light chain measurement in the diagnosis, prognostic assessment and evaluation of response of AL amyloidosis: comparison of Freelite and N latex FLC assays
Authors: Palladini Giovanni , Jaccard Arnaud , Milani Paolo , Lavergne David , Foli Andrea , Bender Sebastien , Lavatelli Francesca , Bosoni Tiziana , Valentini Veronica , Pirolini Laura , Ferraro Giovanni , Basset Marco , Russo Francesca , Nuvolone Mario , Albertini Riccardo , Cogne Michel , Merlini Giampaolo
Published: March 2017

Background:

The measurement of circulating free light chain (FLC) is essential in the diagnosis, prognostic stratification and evaluation of response to therapy in light chain (AL) amyloidosis. For more than 10 years, this has been done with an immunonephelometric assay based on polyclonal antibodies (Freelite), and cutoffs for staging and response assessment have been validated with this method. Recently, a new assay based on monoclonal antibodies (N latex FLC) has been marketed in Europe.

Methods:

We evaluated and compared the clinical performance of the two assays in 426 patients with newly diagnosed AL amyloidosis.

Results:

We found suboptimal agreement between the two methods, with differences between values obtained with the Freelite and N latex FLC assays increasing with the concentration of clonal FLC. The diagnostic sensitivity of the Freelite (82%) and N latex FLC (84%) assays was similar, and both improved to 98% in combination with serum and urine immunofixation. The concentration of FLC measured with both methods had prognostic significance. Less pronounced decreases in FLC best predicted improved survival with the N latex FLC assay (33% vs. 50%), and there was poor concordance (84%) in discrimination of responders.

Conclusions:

The two assays have similar diagnostic and prognostic performance. However, they are not interchangeable, and follow-up should be done with either one. New response criteria are needed for the N latex FLC assay.
S100A6 – focus on recent developments
Authors: Leśniak Wiesława , Wilanowski Tomasz , Filipek Anna
Published: March 2017

The Ca2+-binding protein, S100A6, belongs to the S100 family. Binding of Ca2+ induces a conformational change, which causes an increase in the overall S100A6 hydrophobicity and allows it to interact with many targets. S100A6 is expressed in different normal tissues and in many tumors. Up to now it has been shown that S100A6 is involved in cell proliferation, cytoskeletal dynamics and tumorigenesis, and that it might have some extracellular functions. In this review, we summarize novel discoveries concerning S100A6 targets, its involvement in cellular signaling pathways, and presence in stem/progenitor cells, extracellular matrix and body fluids of diseased patients.
Optimization of Rice Bran Oil Encapsulation Using Jackfruit Seed Starch – Whey Protein Isolate Blend as Wall Material and Its characterization
Authors: Murali S , Kar Abhijit , Patel Avinash Singh , Mohapatra Debabandya , Krishnakumar P
Published: March 2017

Response surface methodology (RSM) was used to optimize rice bran oil encapsulation using jackfruit seed starch – whey protein isolate blend as wall material by spray drying technique. Oil concentration (20, 25 and 30 %), wall material (Jackfruit seed starch & whey protein isolate) starch-protein ratio (1:1, 3:1 and 5:1) and spray drying inlet air temperature (140, 150 and 160 °C) were considered as process variables for optimization. A three-factor, three-level Box-Behnken design of RSM was used to conduct the experiments with the aim of maximizing encapsulation efficiency and minimizing peroxide value in the encapsulated powder. A polynomial regression model was fitted using design expert software, and the optimum conditions obtained were 20 % oil concentration, 3:1 starch-protein ratio and 140 °C spray drying inlet air temperature. The encapsulated rice bran oil powers obtained at optimized conditions offered 85.90 % of encapsulation efficiency and 1.18 meq/kg oil of peroxide value. The characterization study revealed that powder particles size (diameter) varied from 3.40 to 300.51 µm and most of the particles were smooth spheres with little appendages.
Gaps in obstetric care processes – we can only improve what is being measured
Authors: Luthander Charlotte Millde , Järnbert Pettersson Hans , Högberg Ulf , Berglund Sophie , Grunewald Charlotta
Published: March 2017

A multifaceted intervention at all six obstetric units in the Stockholm Health Region was performed in 2008–2011 in order to increase safety for the newborn infants. Case-controlled criterion-based reviews of care processes during labor and delivery have been used to assess factors associated with suboptimal care during labor and delivery. Categories of increased risk of adverse outcome during labor and delivery were defined. Cases with low Apgar scores and healthy controls were scrutinized and compared to data from a study with an identical design performed before the intervention. The risk of suboptimal care increased twice among controls and three times among cases when reviewing specific criteria after a multifaceted intervention. There are still gaps in care processes that need attention. Improving guidelines is important but not enough alone, and the management of fetal surveillance needs further improvement. The complexity of reviewing care processes using criterion-based research methodology is highlighted.
Investigating the Organizational Climate for Creativity/Innovation among Librarians in Academic Libraries in South East Nigeria
Authors: Ibegbulam Ijeoma , Eze Jacintha Ukamaka , Akpom Chinwe C.
Published: March 2017

Creativity/innovation of librarians is imperative for the continuing relevance of academic libraries. However, for that to happen, the organizational climate of academic libraries has to be supportive of librarians’ creativity. This study investigated the organizational climate of four academic libraries in Nigeria in relation to creativity. Using a questionnaire as the instrument for collection of data, the study sought to know from a sample size of 103 librarians their perception of the organizational climate of their libraries as it relates to creativity. Six dimensions of organizational climate were investigated: organizational encouragement, supervisory encouragement, work group support, freedom, sufficient resources and challenging work. The findings revealed that work group and organizational encouragement were perceived to be highly positive for creativity. On the other hand, the least supportive dimension for creativity was sufficient resources. These findings reflected the problems/challenges which hinder creativity/innovation in these libraries and the strategies to enhance them as well. The study has implications for management and practice. Limitations of the study were captured and some recommendations for the way forward and for further studies were made.
Analysing Narrativised Space in Moving Images: A Multimodal Discourse Approach to Narrative Complexity and Transmedial Comparison
Authors: Tseng Chiao-I
Published: March 2017

The goal of this paper is to present a multimodal framework for analysing a particular dimension of space in moving images, namely,
Synthesis and antiproliferative evaluation of novel azido nucleosides and their phosphoramidate derivatives
Authors: Xavier Nuno M. , Gonçalves-Pereira Rita , Jorda Radek , Řezníčková Eva , Kryštof Vladimír , Oliveira M. Conceição
Published: March 2017

New xylofuranosyl and glucopyranosyl nucleoside phosphoramidates were synthesized as potential mimetics of nucleoside 5′-monophosphates. Their access involved N-glycosylation of uracil and 2-acetamido-6-chloropurine with 5′/6′-azido-1,2-di-O-acetyl glycosyl donors and subsequent Staudinger-phosphite reaction of the resulting azido nucleosides. The coupling of the purine derivative with the pyranosyl donor furnished N9- and N7-linked nucleosides in 1:1 ratio, whereas with the furanosyl donor, the N9-nucleoside was the major regioisomer formed. When using uracil, only 5′/6′-azido N1-linked nucleosides were obtained. The purine 5′/6′-azido nucleosides were converted into corresponding phosphoramidates in good yields. The antiproliferative effects of the nucleoside phosphoramidates and those of the azido counterparts on cancer cells were evaluated. While the nucleoside phosphoramidates did not show significant activities, the purine 5′/6′-azido nucleosides displayed potent effects against K562, MCF-7 and BT474 cell lines. The 5′-azidofuranosyl N9 and N7-linked purine nucleosides exhibited highest activity towards the chronic myeloid leukemia cell line (K562) with GI50 values of 13.6 and 9.7 μM, respectively. Among pyranosyl nucleosides, the N7-linked nucleoside was the most active compound with efficacy towards all cell lines assayed and a highest effect on K562 cells (GI50=6.8 μM). Cell cycle analysis of K562 and MCF-7 cells showed that the most active compounds cause G2/M arrest.
Frameworking memory and serotonergic markers
Authors: Meneses Alfredo
Published: March 2017

The evidence for neural markers and memory is continuously being revised, and as evidence continues to accumulate, herein, we frame earlier and new evidence. Hence, in this work, the aim is to provide an appropriate conceptual framework of serotonergic markers associated with neural activity and memory. Serotonin (5-hydroxytryptamine [5-HT]) has multiple pharmacological tools, well-characterized downstream signaling in mammals’ species, and established 5-HT neural markers showing new insights about memory functions and dysfunctions, including receptors (5-HT1A/1B/1D, 5-HT2A/2B/2C, and 5-HT3-7), transporter (serotonin transporter [SERT]) and volume transmission present in brain areas involved in memory. Bidirectional influence occurs between 5-HT markers and memory/amnesia. A growing number of researchers report that memory, amnesia, or forgetting modifies neural markers. Diverse approaches support the translatability of using neural markers and cerebral functions/dysfunctions, including memory formation and amnesia. At least, 5-HT1A, 5-HT4, 5-HT6, and 5-HT7receptors and SERT seem to be useful neural markers and therapeutic targets. Hence, several mechanisms cooperate to achieve synaptic plasticity or memory, including changes in the expression of neurotransmitter receptors and transporters.
Solid-State NMR Spectroscopy Study of Cation Dynamics in Layered Na2Ti3O7 and Li2Ti3O7
Authors: Volgmann Kai , Werth Vanessa , Nakhal Suliman , Lerch Martin , Bredow Thomas , Heitjans Paul
Published: March 2017

Ti-based materials exhibit suitable properties for usage in secondary Li- and Na-ion batteries and were in the focus of several electrochemical and ion conductivity studies. A material of such interest is layer-structured, monoclinic Na2Ti3O7. Additionally, the sodium in Na2Ti3O7 can be replaced completely with lithium to achieve monoclinic Li2Ti3O7, whose electrochemical properties were already investigated as well. Both materials exhibit interesting properties such as zero-strain behavior upon intercalation and high cycling stability. However, there is still a lack of fundamental understanding of the ion diffusivity of both Na and Li in the corresponding host structure. Solid-state nuclear magnetic resonance (NMR) spectroscopy is used here for the first time to reveal the cation dynamics in layered Na2Ti3O7 and Li2Ti3O7. This includes activation energies for the ionic motion and jump rates on the microscopic scale from NMR spin-lattice relaxation (SLR), spin-alignment echo (SAE), and 2D NMR exchange techniques. Moreover, the dimensionality of the ionic motion is investigated by frequency-dependent NMR SLR. Structural details are studied using magic-angle spinning (MAS) NMR spectroscopy. Results for the electric field gradient at the Na and Li site, respectively, are compared with those from theoretical calculations performed within this study. The dynamics are similar for both cations, and the frequency-dependence of the 7Li NMR SLR rate indicates Li motion confined to two dimensions. Thus, these two materials may be regarded a model system for low-dimensional diffusion of two different cations.
Detention and Correctional Facilities: History and Relevance of ASTM Standards
Authors: Stapleton James A.
Published: March 2017

Description

Gain insights from industry practitioners creating the technical bases of standards that are keeping our correctional facilities safe. This new manual details over five decades of research, analysis, and debate.

This research is vital to creating the security products, materials and systems that will provide a safe environment for occupants and staff.

ASTM Committee F33 maintains 14 standards addressing

This manual also provides commentary on plans for the development of 16 new standards. Stay informed on the future of standards development in the corrections industry.
Microstructure Analysis of Segmented Chips of Super Duplex Stainless Steel Sandvik SAF 2507™ Using Electron Microscopy Techniques
Authors: Raveendra S. , Gustavsson F. , Golpayegani A. , Haraldsson J. , Chai G.
Published: March 2017

Machined chips of Sandvik SAF 2507™ which is a super duplex stainless steel (SDSS), are known to exhibit segmentation. These segmented chips are known to contain primary shear zones (PSZs) and secondary shear zone (SSZs) zones. PSZ regions exhibit adiabatic shear bands (ASBs). To analyze such ASBs, electron backscatter diffraction (EBSD) is an excellent technique. However, due to severe deformation and grains in the range of a few nanometers, the information obtained is limited when using conventional EBSD (c-EBSD) and instead, Transmission Kikuchi Diffraction (TKD)/transmission EBSD (t-EBSD) can be used with great advantage. In this work, TKD and c-EBSD techniques were used to analyze PSZs/ASBs and SSZs regions, respectively. The backscattered electron (BSE) images of PSZs/ASBs clearly showed alternate bands of austenite and ferrite with very fine elongated grains along the shear direction. On the other hand, the SSZs exhibited alternate regions of equiaxed and non-equiaxed or deformed grains. Furthermore, c-EBSD showed that ferrite was significantly recrystallized and austenite was deformed to a great extent. Similar observations were also noticed in the PSZs/ASBs using TKD: that ferrite recrystallizes to a greater extent than austenite. Another interesting observation was that in the regions farther away from the SSZs, the grains adjacent to PSZs/ASBs exhibit higher numbers of low angle grain boundaries (LAGBs) than the grains in the middle of the segments. This could be attributed to higher extent of deformation in the neighboring regions of severely deformed PSZs/ASBs.
Investigation of reactive gases and methane variability in the coastal boundary layer of the central Mediterranean basin
Authors: Cristofanelli Paolo , Busetto Maurizio , Calzolari Francescopiero , Ammoscato Ivano , Gullì Daniel , Dinoi Adelaide , Calidonna Claudia Roberta , Contini Daniele , Sferlazzo Damiano , Di Iorio Tatiana , Piacentino Salvatore , Marinoni Angela , Maione Michela , Bonasoni Paolo
Published: March 2017

We present a characterization of reactive gases (RG: O3, NO, NO2,SO2, CO) and methane (CH4) variability in the central Mediterranean basin,analyzing in situ measurements at three new permanent WMO/GAW Observatories in Southern Italy: Capo Granitola – CGR (Sicily), Lamezia Terme – LMT (Calabria) and Lecce – ECO (Apulia). At all the measurement sites, a combination of the breeze wind system (especially at CGR and LMT),PBL dynamics, anthropogenic/natural emissions, and photochemistry lead the appearance of well-defined diurnal cycles for the observed RG.

According to O3/NOx variability, local emissions appeared to influence CGR and LMT (no NOx data were available for ECO during the period of study) in 4% and 20% of the hourly data, nearby sources in 39% and 40%, remote sources in 31% and 14%, while background O3/NOx were observed in 26% of cases for both the stations. Most of the background O3/NOx were observed during daytime, when offshore air masses usually affected the measurement sites. Local sources of CH4 at CGR can be related to biogenic (oxic) emissions from biomasses along the coastline, while emissions from live stocks can represent a local source of CH4 at LMT.

Finally, we provide first hints about the export of O3 from Sicily/Southern Italy to the Mediterranean Sea by comparing simultaneous observations at CGR and Lampedusa (LMP), a small island in the middle of the Strait of Sicily where a WMO/GAW Regional Station is located. In summer,O3 increased by some 7 ppb for transport times lower than 48 h, while no statistical significant differences were observed for travel time longer than 48. This would suggest that photochemical O3 production occurred within air-mass travelling from CGR to LMP, but also that the central Mediterranean MBL represents a O3 sink for relatively aged air-masses.
ARMC5 mutation in a Portuguese family with primary bilateral macronodular adrenal hyperplasia (PBMAH)
Authors: Rego Teresa , Fonseca Fernando , Espiard Stéphanie , Perlemoine Karine , Bertherat Jérôme , Agapito Ana
Published: March 2017

PBMAH is a rare etiology of Cushing syndrome (CS). Familial clustering suggested a genetic cause that was recently confirmed, after identification of inactivating germline mutations inarmadillo repeat-containing 5(ARMC5) gene. A 70-year-old female patient was admitted due to left femoral neck fracture in May 2014, in Orthopedics Department. During hospitalization, hypertension (HTA) and hypokalemia were diagnosed. She presented with clinical signs of hypercortisolism and was transferred to the Endocrinology ward for suspected CS. Laboratory workup revealed: ACTH <5 pg/mL; urinary free cortisol (UFC), 532 µg/24 h (normal range: 20–90); failure to suppress the low-dose dexamethasone test (0.5 mg every 6 h for 48 h): cortisol 21 µg/dL. Abdominal magnetic resonance imaging (MRI) showed enlarged nodular adrenals (right, 55 × 54 × 30 mm; left, 85 × 53 × 35 mm), and she was submitted to bilateral adrenalectomy. In 2006, this patient’s 39-year-old daughter had been treated by one of the authors. She presented with severe clinical and biological hypercortisolism. Computed tomography (CT) scan showed massively enlarged nodular adrenals with maximal axis of 15 cm for both. Bilateral adrenalectomy was performed. In this familial context of PBMAH, genetic study was performed. Leucocyte DNA genotyping identified in both patients the same germline heterozygous ARMC5 mutation in exon 1 c.172_173insA p.I58Nfs*45. The clinical cases herein described have an identical phenotype with severe hypercortisolism and huge adrenal glands, but different ages at the time of diagnosis. Current knowledge of inheritance of this disease, its insidious nature and the well-known deleterious effect of hypercortisolism favor genetic study to timely identify and treat these patients.

Learning points:

PBMAH is a rare etiology of CS, characterized by functioning adrenal macronodules and variable cortisol secretion.

The asymmetric/asynchronous involvement of only one adrenal gland can also occur, making disease diagnosis a challenge.

Familial clustering suggests a genetic cause that was recently confirmed, after identification of inactivating germline mutations inarmadillo repeat-containing 5(ARMC5) gene.

The insidious nature of this disease and the well-known deleterious effect of hypercortisolism favor genetic study of other family members, to diagnose and treat these patients timely.

As ARMC5 is expressed in many organs and recent findings suggest an association of PBMAH and meningioma, a watchful follow-up is required.
Framing Deaf Children’s Right to Sign Language in the Canadian Charter of Rights and Freedoms
Authors: Paul Jennifer J. , Snoddon Kristin
Published: March 2017

Sign language rights for deaf children bring a unique perspective to bear in the fields of both disability rights and language planning. This is due to the lack of recognition in existing case law of the right to language in and of itself. Deaf children are frequently deprived of early exposure to a fully accessible language, and as a consequence may develop incomplete knowledge of any language. Thus, in the case of deaf children the concept of sign language rights encompasses rights that are ordinarily viewed as more fundamental to human equality. This paper will take as a starting point the historical treatment of the enumerated disability ground in the Canadian Charter of Rights and Freedoms’ section 15(1) guarantee of equality rights. We argue that in order to meet deaf children’s specific biological and linguistic needs, these children’s right to sign language also needs to be recognized as an analogous ground for protection from discrimination. Sign language rights are framed in terms of an immutable characteristic of all children, namely the biolingual process for language acquisition. The biolingual process is the experiential and innate ability to acquire language.
In the Nick of Time: A Pan-Canadian Examination of Extended Testing Time Accommodation in Post-secondary Schools
Authors: Sokal Laura , Wilson Alina
Published: March 2017

Extended testing time accommodation (ETTA) is the most common accommodation assigned to post-secondary students with disabilities. We examined data on the processes of providing and monitoring the use of ETTA at 48 Canadian post-secondary institutions who provided accommodations to over 43,000 students with disabilities in every province in Canada. Findings indicated that students with learning disabilities were the most likely to be allocated ETTA. The most common duration of ETTA by far was 150% of the standard testing time provided to other students, and was typically assigned in over 70% of cases-- despite there being no valid empirical evidence to support this practice. In almost half of the institutions following this practice, this duration of ETTA was typically awarded upon intake based on guidelines, policies, or the belief that research exists to support this procedure, and in over 40% of these institutions there were no procedures in place for monitoring and modifying ETTA allowances once assigned. There was evidence of some exemplary practices in terms of the decision-making processes that went into determining and monitoring individual student’s ETTA durations. However, concerns were raised in some cases by the rationales for providing specific durations of ETTA, and by the lack of monitoring that together comprised ‘blanket’ accommodations.
Actividad física, ejercicio físico y adulto mayor
Authors: Ozols R. Ma Antonieta , Corrales Araya Ma Antonieta
Published: March 2017

Se ha comprobado que la actividad física y el ejercicio mejoran la calidad de vida de las personas mayores. Las investigaciones han encontrado progresos en el plano físico, emocional y social. Una de las organizaciones que está promoviendo estilos de vida saludables es la Organización Mundial de la Salud, que ha enfocado su atención en todas las etapas de la vida: desde la niñez hasta la edad adulta mayor.
Experiencias universitarias inter-generacionales en proyectos de participación comunitaria: construyendo aprendizajes significativos para la vida y lazos de solidaridad generacional
Authors: Monge Barrantes Ana
Published: March 2017

El presente artículo relata los inicios y las experiencias generadas en dos actividades de docencia y extensión. La primera se trata de los cursos de “Cultura y persona adulta mayor: retos del nuevo milenio”; la segunda, titulada “Educando para la recreación y uso del tiempo Libre”. El eje central del trabajo de extensión y docencia ha sido el diálogo intergeneracional en la formulación y ejecución de proyectos que coadyuven a la construcción de aprendizajes significativos para la vida. En los encuentros intergeneracionales participan estudiantes de la Universidad Nacional que asisten al Centro de Estudios Generales y personas adultas mayores provenientes de varias comunidades heredianas localizadas en centros diurnos y hogares. Estas actividades se realizan mediante la formulación y ejecución de programas intergeneraciones comprendidos en el marco de la acción institucional que interconecta la extensión universitaria con la docencia. Después de varios años de realizar estas labores en el marco del Proyecto UNA-Vida, se desea compartir y dar a conocer esta experiencia, cuyos resultados han sido muy satisfactorios y gratificantes; lo que reafirma el compromiso de seguir trabajando en la consecución de aprendizajes significativos para la vida que posibiliten el fortalecimiento de la acción sustantiva universitaria para un nuevo humanismo en el siglo XXI.
Nanotechnology: Advancing the translational respiratory research
Authors: Dua Kamal , Shukla Shakti Dhar , de Jesus Andreoli Pinto Terezinha , Hansbro Philip Michael
Published: March 2017

Considering the various limitations associated with the conventional dosage forms, nanotechnology is gaining increased attention in drug delivery particularly in respiratory medicine and research because of its advantages like targeting effects, improved pharmacotherapy, and patient compliance. This paper provides a quick snapshot about the recent trends and applications of nanotechnology to various translational and formulation scientists working on various respiratory diseases, which can help paving a new path in developing effective drug delivery system.
Tough, but not impossible – Retrieval of large atrial septal occluder devices embolized to left atrium
Authors: Ramalingam Rangaraj , Patil Shivanand , Setty Natraj , Kharge Jayashree , Puttegowda Beeresha , Rachaiah Jayasheelan Mambally , Manjunath Cholenahally Nanjappa
Published: March 2017

Atrial septal defect (ASD) is a congenital heart defect that is being increasingly treated using percutaneous interventions. However, these techniques are not devoid of complications. One such complication is device embolization. Removal of such closure device poses tremendous risk and consequent complications both by percutaneous retrieval and surgical removal. Herein, we present two cases of ASDs that were closed using atrial septal occluder, but the devices were subsequently embolized into left atrium. These devices were then percutaneously retrieved without any further complication or injury.
A case of early development of giant coronary artery aneurysms after drug-eluting stents implantation: An unpredictable menace
Authors: Gadepalli Ramesh , Rayidi Gopikrishna , Pramod Gururaj , Srivastava ShashiK. , Venkata Balakrishna Sai Nyayapathi
Published: March 2017

Development of coronary artery aneurysm (CAA) after implantation of drug-eluting stent is occasionally observed. We present a case of a 67-year-old man who underwent everolimus-eluting stent (EES) implantation in right coronary artery (RCA) for inferior wall myocardial infarction, and thereafter, giant CAAs were developed in the vessel of stent deployment, within 2 months. However, the patient was managed with coronary artery bypass grafting (CABG). On follow-up, the patient’s condition was stable. To the best of our knowledge, we report the first case of occurrence of EES-associated giant CAAs in RCA subsequently treated with CABG.
Plasticity and motor recovery after stroke: Implications for physiotherapy
Authors: Smith Marie-Claire , Stinear Cathy M.
Published: March 2017

Despite advances in prevention and acute management of stroke and a proliferation of motor rehabilitation trials over the last decade, disability rates after stroke remain high. This commentary considers recent evidence, which suggests that it is time to extend our thinking beyond the model of cortical use-dependent plasticity that has underpinned much of physiotherapy stroke rehabilitation for the last 20 years. The discovery of a fixed, proportional recovery of impairment has led to a renewed focus on how rehabilitation may interact with spontaneous biological recovery. There is also increasing interest in use-dependent plasticity in the white matter as a possible mechanism for improving motor recovery after stroke. These emerging areas in stroke rehabilitation research have yet to be fully investigated, but provide some promise for future trials. In the interim, becoming familiar with all aspects of neural plasticity after stroke may help to equip physiotherapists with greater understanding of the mechanisms of stroke recovery and enable critical decision-making around the selection and timing of interventions after stroke.
Desarrollo del pensamiento lógico basado en resolución de problemas en niños de 4 a 5 años
Authors: León Urquijo Ana Patricia , Casas Antilef Jacqueline del Carmen , Restrepo Ramírez Gerardo
Published: March 2017

Se presenta los resultado de la investigación descriptiva longitudinal panel “Desarrollo del pensamiento lógico matemático basado en resolución de problema en niños y niñas de 4 a 5 años” de una institución educativa pública de Osorno Chile, que se realizó mediante un programa de intervención educativa basada en problemas durante 2013 -2014, utilizando estrategia didáctica de la vida práctica a través del juego, con el propósito de analizar los procesos del desarrollo del pensamiento lógico. El instrumento fue la  “Escala para Observar Estrategias de Resolución de Problemas” de Sáiz & Román (2011), además se hizo el registro de notas de campo. En este artículo se presentan los resultados de los ítems de atención comprensión y motivación. Se encontró que algunos niños son ingeniosos buscando recursos para resolución de situaciones problemas, otros imitan, piden ayuda y resuelven con la repetición de instrucciones; algunos necesitan apoyo concreto con sugerencias y muy pocos no se esfuerzan ni intentan hacerlo. Se concluyó que el desarrollo del pensamiento se propicia en un ambiente social donde la educadora juega un papel importante contribuyendo a la interacción de los niños haciendo uso de la comunicación efectiva y apoyo mutuo.
Posicionamiento y valor percibido. Aplicación a centros de entretenimiento en Bogotá.
Authors: Sandino Diego
Published: March 2017

El objetivo de este artículo es en primer lugar profundizar en el valor percibido por parte de estudiantes, docentes, turistas y empresarios que frecuentan establecimientos comerciales con fines de investigación, entretenimiento o negocios. El estudio se hará por medio de una revisión sistemática de literatura de carácter científico en el campo del marketing sobre las relaciones entre el valor y la satisfacción, la calidad y el riesgo percibido, los sacrificios percibidos y otros factores que terminan por hacer calificable de una u otra manera las experiencias vividas en estos establecimientos. (Cronin, J. J., et al 2000; JC Sweeney et al 1999). En segundo lugar se espera conocer cómo el valor percibido afecta el posicionamiento de marca aplicado a uno de los establecimientos lúdicos más innovadores de Latinoamérica, se ha escogido el Centro Interactivo de Ciencia y Tecnología Maloka en Bogotá con el fin de realizar las mediciones de estas variables mediante herramientas estadísticas y así brindar a los sectores del entretenimiento y el comercio información útil que facilite las decisiones de la gerencia del marketing para lograr este posicionamiento.
Influencia del país de origen en la decisión de compra de comidas rápidas y bebidas en consumidores colombianos
Authors: Martinez Rodriguez Martha Liliana
Published: March 2017

El artículo busca contribuir al conocimiento de la influencia del país de origen en una categoría no abordada previamente, como lo es el de comidas rápidas y bebidas. El estudio tiene como ámbito la población colombiana dado que el número de franquicias extranjeras ha aumentado durante los últimos años en el país. Esto permite conocer factores que intervienen en la decisión de compra así como las preferencias del consumidor al  elegir una marca local o extranjera. El método para construir este avance fue Revisión Sistemática de Literatura (Pérez-Rave, Álvarez-Jaramillo, & Henao-Velásquez, 2012) bajo los parámetros indicados por Kitchenham (2004)
Motivaciones en mujeres jóvenes latinoamericanas para iniciar y permanecer en comunidades de videojuegos online competitivos. Caso de estudio: League of Legends
Authors: Suárez Benavides Eduars Arley
Published: March 2017

Los deportes electrónicos o eSports son el resultado de la profesionalización de los videojuegos online competitivos. El mercado de los deportes electrónicos está creciendo y cada vez amplía más sus límites geográficos gracias a que la experiencia de usuario es posible a través de internet, así como a la creciente participación de público femenino. Los videojuegos competitivos tradicionalmente han sido de mayor gusto en hombres que en mujeres. Sin embargo, en la actual era digital donde es más fácil encontrar espacios comunes a través de la red, así como formas de socializar e interactuar, se observa una creciente participación de público femenino, no sólo en el entorno virtual competitivo y colaborativo, sino también en los espacios físicos donde se generan eventos con base en los juegos online. Las razones por las cuales la cantidad de videojugadoras es cada vez mayor se han explorado en otras regiones, pero hay poca información al respecto en la zona de Latinoamérica; es más, hay poca información en general del consumidor del mercado emergente de videojugadores online. El propósito de este estudio es explorar las motivaciones de la mujeres jóvenes para hacer parte de la comunidad gamer online.
Análisis oferta de centros de entretenimiento educativo en Colombia.
Authors: Rivera Sanchez Alvaro Andrés
Published: March 2017

El concepto de entretenimiento educativo viene siendo aplicado desde mucho tiempo antes de la aparición de la tecnología, ya que desde el siglo diecinueve se inició el proceso de aprendizaje en base a la aplicación de juegos, y posteriormente se generó la asociación del juego con el aprendizaje a través de textos y postulados, hasta 1990 cuando “El desarrollo de juegos digitales para el aprendizaje” fue orientado a los principios del “Edutainment” (Intitute of play, 2013)

No obstante este concepto aún no ha sido ampliamente analizado, en Colombia actualmente existe un bajo número de centros de entretenimiento educativo, puesto que de acuerdo a las tendencias del consumidor, y al análisis de las ofertas de este tipo a nivel mundial, se encontró que la oferta actual carece de valor, en relación con la tecnología y con la experiencia que puede generar al usuario.

Considerando que a nivel mundial los museos, acuarios y otros tipos de centros temáticos se encuentran en búsqueda constante de innovar su oferta para hacer más atractiva la experiencia para el usuario sin dejar de lado el contenido educativo y de aprendizaje de los mismos.

Por consiguiente se aplicara una investigación de tipo exploratorio que permitirá analizar la oferta actual de entretenimiento educativo a nivel nacional, soportado en la percepción de la experiencia recibida por sus usuarios.
Relación entre lealtad de marca y estilos de vida en los consumidores de la categoría de carnes frescas en la ciudad de Bogotá
Authors: Hernández Saavedra Andrés
Published: March 2017

Por medio del presente artículo se busca establecer la relación entre  las dimensiones que conforman la lealtad de marca con los estilos de vida que tienen los consumidores mayores de edad en la categoría de carnes frescas en la ciudad de Bogotá. Para logar  el cometido, se realizará una revisión literaria de los conceptos que tienen que ver con la marca, lealtad de marca, las dimensiones que conforman la lealtad de marca y estilos de vida. A través de la información recolectada, profundizaremos por medio de un diseño de investigación de tipo cuantitativo de alcance descriptivo correlacional, con el fin de explorar la relación entre lealtad de marca y estilos de vida en los consumidores en la categoría de carnes frescas. También,  se llevará a cabo el análisis de los resultados obtenidos y unas recomendaciones para futuras investigaciones.        
Influencia de las capacidades organizacionales para tomar riesgos en la orientación al mercado en el sector manufacturero en Colombia.
Authors: Jamaica Guevara Sandra Yineth
Published: March 2017

El crecimiento a nivel global de las empresas de manufactura y su importancia en la economía mundial, establecen la urgencia de que el sector saque provecho a sus propias capacidades, es decir, evalúe continuamente su desempeño en absorción, recursos de red y holgura organizacional, considerando acciones encaminadas al conocimiento y a las preferencias de sus clientes, cómo enfatizaban Jaworski & Kohli (1993, p. 56): “la orientación al mercado consiste fundamentalmente en hacer algo nuevo o diferente en respuesta a las condiciones del mercado y puede ser vista como una forma de comportamiento innovador”, por lo tanto, que dichas acciones permitan dentro del sector tener mayor generación de información, diseminación de información y capacidad de respuesta.  El objetivo general de este artículo es describir la influencia de las capacidades organizacionales para tomar riesgos, en la orientación al mercado en el sector manufacturero en Colombia.La metodología de investigación se basa en un método pragmático, descriptivo e interpretativo, de tipo no experimental y transversal.  El método de investigación será mixto secuencial exploratorio, donde una primera fase será cualitativo y posteriormente cuantitativo. Teniendo en cuenta que es un muestreo no probabilístico se determinó hacer la encuesta a 695 empresas de manufactura en Colombia y que cuenten con área o personal encargado de la labor de mercadeo, la encuesta es electrónica tipo likert, donde se han establecido preguntas que abordan las dos variables: Orientación al mercado y Capacidades organizacionales para tomar riesgos, además de sus dimensiones. El proceso de la información se hará bajo la plataforma SPSS.
lealtad de marca
Authors: Cardona Erika Andrea
Published: March 2017

La idea de esta investigación, es conocer el comportamiento de los consumidores  al momento de comprar una crema o producto para su cuidado facial y analizar por qué compran dichos productos, si es por mejorar su apariencia física o porque simplemente los hace sentir bien.
AMBIENTE DE SERVICIO Y CALIDAD PERCIBIDA EN LA SALA DE URGENCIAS DE UNA IPS (INSTITUCIÓN PRESTADORA DE SERVICIOS DE SALUD) PRIVADA EN EL ORIENTE DE BOGOTÁ
Authors: Fallla Lina
Published: March 2017

Brindar servicios de calidad en el ámbito hospitalario y ambulatorio tiene gran importancia para los administradores de los servicios de salud. Eºs por esta razón que se han realizado investigaciones enfocadas a evaluar la calidad del servicio así como el nivel de satisfacción de los usuarios frente al sistema. Sin embargo, estas evaluaciones suelen centrarse en el proceso de la prestación más que en el ambiente de servicio en el cual se presta. Así mismo, no se evidencian estudios enfocados al servicio de salas de urgencias, más allá de la incidencia del tiempo de espera en el resultado del servicio.

El ambiente de servicio involucra variables físicas, simbólicas, sociales y naturales, con las cuales los sujetos entran en contacto en el momento de buscar un servicio. Esto se conoce como el ambiente de servicio ampliado.

Teniendo en cuenta lo anterior, el presente trabajo busca encontrar si el ambiente de servicio ampliado se relaciona con la percepción de calidad en el servicio de urgencias. Para poder encontrar esta relación, se propone un estudio en tres fases. La primera: observación de la sala de urgencias. La segunda: entrevistas en profundidad con usuarios de la sala de urgencias para identificar las variables del ambiente de servicio ampliado asociadas a calidad. Y tercera: medición de las variables identificadas y su influencia en la calidad del servicio.  
ATRIBUTOS DE PREFERENCIA EN LA NAVEGACIÓN DE PÁGINAS WEB Y SU IMPACTO EN LA GESTIÓN DE MARCA EN USUARIOS DEL SECTOR DE CLÍNICAS ESPECIALIZADAS EN DIABETES.
Authors: ORELLANOS CARDENAS ANDREA LILIANA
Published: March 2017

La investigación presentada se orienta en determinar los atributos de preferencia en la navegación de páginas web y su impacto de la gestión de marca de clínicas de diabetes en la ciudad de Bogotá, a fin de poder revelar sus efectos en creación de valor de una marca, el posicionamiento de la marca y difusión de la cultura corporativa presente en estas compañías. La investigación que se pretende desarrollar se enmarca en un análisis descriptivo con enfoque cualitativo. Se espera proporcionar estrategias que orienten a las empresas en la gestión estratégica de sus marcas, a fin de que puedan lograr mayor volumen de ingresos, valor financiero e imagen corporativa, mediante la interacción con target objetivo tomando como vehículo el uso intensivo de páginas web.
Valor percibido de los clientes del sector de seguridad privada en Colombia
Authors: Nova Villarraga Claudia Giobanna
Published: March 2017

Este trabajo se realiza con el propósito de identificar el valor percibido por parte de clientes del sector de seguridad privada en Colombia, específicamente los clientes de vigilancia humana y transporte de valores. El abordaje de la anterior problemática surge de la carencia de estudios en este sector respecto a valor percibido y por ende de validaciones empíricas de la escala PERVAL (Sweeney & Soutar, 2001); lo anterior se identificó por medio de una Revisión Sistemática de Literatura en bases de datos científicas, con una ecuación de búsqueda con las palabras clave customer value, value creation, business to business, security services, security industry, en la ventana de observación 2005 - 2015.

Con un enfoque exploratorio, debido a la escasez de estudios previos acerca del tema, y a través del método fenomenológico se quiere examinar la realidad vivida e interpretada por los clientes de estos servicios. El diseño muestral para llevar a cabo esta investigación es no probabilistico por conveniencia debido a que existe alta posibilidad de acceso a clientes actuales del servicio. 
EL EFECTO DE LA SEMANTICA DE LOS OLORES Y LAS SEÑALES VISUALES EN LAS PREFERENCIAS DEL CONSUMIDOR EN LOS PRODUCTOS DE CUIDADO PERSONAL
Authors: MONTALVO LOPEZ EDNA MARGARITA
Published: March 2017

Los seres humanos están estimulados continuamente por los sentidos, el tacto es el primer sentido que se desarrolla en el útero y el último sentido que se pierde con la edad. En el embarazo los sentidos se desarrollan en el siguiente orden: tacto, olfato, gusto, audición y visión (Krishna, Julio 2012), y es a través de estos que se hace posible la conciencia y recordación de lugares, momentos, objetos y personas, por esta razón las sensaciones son influenciadores de emociones y de las decisiones que tomamos, teniendo en cuenta que un 35% de lo que olemos somos capaces de recordar, frente a un 5% de lo que se ve, 2% de lo que se escucha y 1% de lo que se toca (Durán, 2015, pág. 7).
Esta investigación busca identificar cómo la semántica de los olores y las señales visuales influyen en la preferencia del consumidor en categorías de productos de cuidado personal.
Las preferencias del consumidor están sujetas a las necesidades, donde los influenciadores emocionales llevan a que se adquiera un producto o servicio, para satisfacer los deseos, El nivel de participación de estas emociones, determina el grado de motivación que un consumidor tiene para comprar un producto. (Ernakulam, 2014)

El consumidor busca suplir necesidades básicas como: alimentación, aseo, vestuario, cuidado personal, entre otras. El cuidado personal se refiere: al cuidado del cabello, el cuidado de la piel, el cuidado bucal, la cosmética, la higiene femenina y masculina. En este segmento no solo se suplen las necesidades básicas sino también deseos, lo que nos llevan a indagar sobre los motivos de consumo, que son los conductores de comportamiento de compra. (Ernakulam, 2014)
El análisis nos podrá llevar a evidenciar el efecto de la semántica de los olores y las señales visuales en las preferencias del consumidor en los productos de cuidado personal.
Valor de la información de las IES en redes sociales por parte de los estudiantes universitarios en Bogotá
Authors: Cárdenas Trejos Santiago
Published: March 2017

Este documento presenta una revisión de literatura de la gestión de las redes sociales por parte de las empresas, especialmente en el ámbito de la comunicación de marca aplicada a las IES. Se ha realizado un arqueo bibliográfico a partir de la consulta de diferentes fuentes de información secundaria para establecer las características, modelos y recomendaciones que establece la literatura en la gestión de la redes sociales como herramienta de comunicación cuyo énfasis es Facebook, Twitter e Instagram como principales plataformas digitales. De acuerdo al estudio realizado por comScore y presentado por la IAB (2016) que refiere el porcentaje de interacción de las redes sociales otorgando predominio por Facebook (79%), seguido por Twitter (16%) e Instagram (5%).