bluuebunny/crossref_metadata_2025 huggingface dataset:
Incorporating Lean Construction agent into the Building Standards Act: the Spanish case study
Authors: Brioso Xavier , Humero Antonio
Published: January 2017

There is a demand for lean construction in Europe; even though lean construction is still an emerging field and there is growing interest, there are no regulations on this topic. The main objective of this research is to regulate this role when in a project and to define and develop a building agent structure, according to the Building Standards Act (LOE by its acronym in Spanish), to be able to incorporate it into the Spanish law, protecting it from civil liabilities. In Spain, there is jurisprudence in civil jurisdiction based on the LOE to acquit or convict building agents, who are defined in the courts as “constructive managers” or similar. For this reason, courts could establish in the future several liabilities for the lean construction specialist and other agents of the project, depending on their actions and based on the implementation of the lean project delivery system, the target value design and the integrated project delivery. Conversely, it is possible that the level of action of the lean construction specialist may comprise design management, construction management and contract management. Accordingly, one or more building agents should be appropriately incorporated into the LOE according to their functions and responsibilities and based on the levels of action of the lean construction specialist. The creation of the following agents is proposed: design manager, construction manager and contract manager, definitions that are developed in this study. These agents are loosely defined, because any project manager, building information modeling manager or similar may act as one or as more-than-one of them. Finally, the creation of the lean construction manager is also proposed, as the agent who takes on the role of the design manager, construction manager and contract manager, but focused on the lean production principles.
Exploring allene chemistry using phosphorus-based allenes as scaffolds
Authors: Swamy K. C. Kumara , Anitha Mandala , Gangadhararao G. , Rama Suresh R.
Published: January 2017

In this paper, we review some of our results on cycloaddition and cyclization reactions of allenylphosphonates/and allenyl phosphine oxides. Thus nitro-substituted propargylic alcohols react with P(III)–Cl substrates to lead to unprecedented phosphono-benzazepines or -hydroxyindolinones. A similar reaction using a higher stoichiometry of P(III)–Cl precursor has led to the first observation of spontaneous resolution by crystallization in allene chemistry. In the reaction of these phosphorus based allenes with diphenyl isobenzofuran (DPBF), depending on the substituents, both [α, β] and [β, γ]-cycloaddition products are formed. Extension of this work to sulfur based allenes and leading to a new [4+2] cycloadduct with DPBF is reported. A novel cyclization reaction of a functionalized allenylphosphine oxide with diethylamine leading to 3-diethylamino-4-diphenylphosphinoyl-1-naphthol is discovered. Base-catalyzed reactions of allenylphosphonates with 2-substituted benzaldehdes lead to novel thiochromans, chromenes, and quinolines. Allenylphosphonates undergo phosphonylation in the presence of tetrabutyl ammonium fluoride (TBAF). Vinyl azides derived from allenylphosphonates undergo thermolysis to form bis-phosphonopyrazines. [Pd]-catalyzed reactions of allenes with 2-iodophenols, 2-iodobenzyl alcohol and 3-iodo-indole-2-carboxylic acids lead to a variety of benzofurans, benzopyrans and benzopyranones, respectively.
Wild boars (Sus scrofa) as bioindicators of environmental levels of selenium in Poland
Authors: Nowakowska E. , Pilarczyk B. , Pilarczyk R. , Tomza-Marciniak A. , Bąkowska M. , Marciniak A.
Published: January 2017

The objective of the study was to determine selenium content in selected organs (liver, kidney) of wild boars from different regions of Poland. Materials for the study were obtained from 28 sites located in 16 provinces of Poland. Selenium concentrations in organs were determined using spectrofluorometric methods after wet mineralization in HNO3 and HClO4 mixture. Mean selenium concentrations in the investigated wild boars from Poland were 0.230 μg/g wet weight in the liver and 1.327 μg/g w.w. in the kidneys. Hepatic and nephric Se concentrations ranged from 0.036-0.626 μg/g w.w. and 0.322-4.286 μg/g w.w., respectively. Selenium concentrations in the wild boars differed considerably according to geographical location. Concentrations of selenium were highest in wild boars from south-eastern provinces and lowest in animals from northern provinces. Most of Poland’s area is environmentally deficient in this trace element, as evidenced by marginal selenium levels in the organs of the wild boars.
Correlation between peripheral blood cell transcriptomic profile and clinical parameters of chronic mitral valve disease in Dachshunds
Authors: Garncarz M. , Hulanicka M. , Maciejewski H. , Parzeniecka-Jaworska M. , Jank M.
Published: January 2017

Studies identifying specific pathologically expressed genes have been performed on diseased myocardial tissue samples, however less invasive studies on gene expression of peripheral blood mononucleated cells give promising results. This study assessed transcriptomic data that may be used to evaluate Dachshunds with chronic mitral valve disease. Dachshunds with different stages of heart disease were compared to a control, healthy group. Microarray data analysis revealed clusters of patients with similar expression profiles. The clusters were compared to the clinical classification scheme. Unsupervised classification of the studied groups showed three clusters. Clinical and laboratory parameters of patients from the cluster 1 were in accordance with those found in patients without heart disease. Data obtained from patients from the cluster 3 were typical of advanced heart failure patients. Comparison of the cluster 1 and 3 groups revealed 1133 differentially expressed probes, 7 significantly regulated process pathways and 2 significantly regulated Ariadne Metabolic Pathways. This study may serve as a guideline for directing future research on gene expression in chronic mitral valve disease.
Comparison between cryoablation and irreversible electroporation of rabbit livers at a location close to the gallbladder
Authors: Zeng Jianying , Qin Zilin , Zhou Liang , Fang Gang , Chen Jibing , Li Jialiang , Niu Lizhi , Liang Bing , Xu Kecheng
Published: January 2017

Background

The ablation of liver tumors located close to the gallbladder is likely to lead to complications. The aim of this article is to compare the safety and efficacy of irreversible electroporation (IRE) and cryoablation in rabbit livers at a location close to the gallbladder.

Materials and methods

We performed cryoablation (n = 12) and IRE (n = 12) of the area of the liver close to the gallbladder in 24 New Zealand white rabbits in order to ensure gallbladder damage. Serum aminotransferase and serum bilirubin levels were measured before and after the ablation. Histopathological examination of the ablation zones in the liver and gallbladder was performed on the 7th day after the ablation.

Result

Seven days after the ablation, all 24 animals were alive. Gallbladder perforation did not occur in the IRE group; only mucosal epithelial necrosis and serous layer edema were found in this group. Gallbladder perforation occurred in four rabbits in the cryoablation group. Serum aminotransferase and serum bilirubin levels obviously increased in both groups by Day 3 and decreased gradually thereafter. The elevation in aminotransferase and bilirubin levels was greater in the cryoablation group than the IRE group. Pathological examination revealed complete necrosis of the liver parenchyma from the ablation center to the gallbladder in both groups, but bile duct and granulation tissue hyperplasia were observed in only the IRE group. Full-thickness gallbladder-wall necrosis was seen in the cryoablation group.

Conclusions

For ablation of the liver area near the gallbladder, IRE is superior to cryoablation, both in terms of safety (no gallbladder perforation in the IRE group) and efficacy (complete necrosis and rapid recovery in the IRE group).
Carotid artery stiffness, digital endothelial function, and coronary calcium in patients with essential thrombocytosis, free of overt atherosclerotic disease
Authors: Vrtovec Matjaz , Anzic Ajda , Zupan Irena Preloznik , Zaletel Katja , Blinc Ales
Published: January 2017

Background

Patients with myeloproliferative neoplasms (MPNs) are at increased risk for atherothrombotic events. Our aim was to determine if patients with essential thrombocytosis (ET), a subtype of MPNs, free of symptomatic atherosclerosis, have greater carotid artery stiffness, worse endothelial function, greater coronary calcium and carotid plaque burden than control subjects.

Patients and methods

40 ET patients without overt vascular disease, and 42 apparently healthy, age and sex-matched control subjects with comparable classical risk factors for atherosclerosis and Framingham risk of coronary disease were enrolled. All subjects were examined by physical and laboratory testing, carotid echo-tracking ultrasound, digital EndoPat pletysmography and CT coronary calcium scoring.

Results

No significant differences were found between ET patients and controls in carotid plaque score [1 (0-1.25) vs. 0 (0-2), p=0.30], β- index of carotid stiffness [7.75 (2.33) vs. 8.44 (2,81), p=0.23], pulse wave velocity [6,21 (1,00) vs. 6.45 (1.04) m/s; p=0.46], digital reactive hyperemia index [2.10 (0.57) vs. 2.35 (0.62), p=0.07], or augmentation index [19 (3-30) vs. 13 (5-22) %, p=0.38]. Overall coronary calcium burden did not differ between groups [Agatston score 0.1 (0-16.85) vs. 0 (0-8.55), p=0.26]. However, significantly more ET patients had an elevated coronary calcium score of >160 [6/40 vs. 0/42, p < 0.01].

Conclusions

No significant differences between groups were found in carotid artery morphology and function, digital endothelial function or overall coronary calcium score. Significantly more ET patients had an elevated coronary calcium score of >160, indicating high cardiovascular risk, not predicted by the Framingham equation.
Stories as Silt in Graham Swift’s Waterland
Authors: Catană Elisabeta Simona
Published: January 2017

The essay analyses Graham Swift’s Waterland and shows that history and identity are subject to a process of reconstruction within stories which evince their author’s power to build on the past based on his vision and cultural experience. We associate the process of recreating the world of the past through stories with the process of recreating a new world through siltation. The same as silt develops land and a new world on the already existing pieces of land reclaimed from water, stories reconstruct history and the past. Both silt and stories reconstruct the past.
In Search of the Invisible Roots: Immigrant Experiences in Jhumpa Lahiri’s Unaccustomed Earth
Authors: Rogobete Daniela
Published: January 2017

This paper attempts an analysis of the metaphorical strategies Jhumpa Lahiri uses in her 2008 collection of short stories Unaccustomed Earth in order to explore and comment on the intricate relations and the complex web of feelings and resentments, longing and attachment that make up the essence of family life as shaped by the diasporic experience. In this volume, Lahiri particularly focuses on the conflicting emotions engendered by migration, on the articulation of displacement and reintegration, and on the capacity to fully assume the diasporic experience and turn it into a meaningful assertion of one’s identity.
Trial-by-Trial Motor Cortical Correlates of a Rapidly Adapting Visuomotor Internal Model
Authors: Stavisky Sergey D. , Kao Jonathan C. , Ryu Stephen I. , Shenoy Krishna V.
Published: January 2017

Accurate motor control is mediated by internal models of how neural activity generates movement. We examined neural correlates of an adapting internal model of visuomotor gain in motor cortex while two macaques performed a reaching task in which the gain scaling between the hand and a presented cursor was varied. Previous studies of cortical changes during visuomotor adaptation focused on preparatory and perimovement epochs and analyzed trial-averaged neural data. Here, we recorded simultaneous neural population activity using multielectrode arrays and focused our analysis on neural differences in the period before the target appeared. We found that we could estimate the monkey's internal model of the gain using the neural population state during this pretarget epoch. This neural correlate depended on the gain experienced during recent trials and it predicted the speed of the subsequent reach. To explore the utility of this internal model estimate for brain–machine interfaces, we performed an offline analysis showing that it can be used to compensate for upcoming reach extent errors. Together, these results demonstrate that pretarget neural activity in motor cortex reflects the monkey's internal model of visuomotor gain on single trials and can potentially be used to improve neural prostheses.

SIGNIFICANCE STATEMENTWhen generating movement commands, the brain is believed to use internal models of the relationship between neural activity and the body's movement. Visuomotor adaptation tasks have revealed neural correlates of these computations in multiple brain areas during movement preparation and execution. Here, we describe motor cortical changes in a visuomotor gain change task even before a specific movement is cued. We were able to estimate the gain internal model from these pretarget neural correlates and relate it to single-trial behavior. This is an important step toward understanding the sensorimotor system's algorithms for updating its internal models after specific movements and errors. Furthermore, the ability to estimate the internal model before movement could improve motor neural prostheses being developed for people with paralysis.
A Delay between Motor Cortex Lesions and Neuronal Transplantation Enhances Graft Integration and Improves Repair and Recovery
Authors: Péron Sophie , Droguerre Marine , Debarbieux Franck , Ballout Nissrine , Benoit-Marand Marianne , Francheteau Maureen , Brot Sébastien , Rougon Geneviève , Jaber Mohamed , Gaillard Afsaneh
Published: January 2017

We previously reported that embryonic motor cortical neurons transplanted immediately after lesions in the adult mouse motor cortex restored damaged motor cortical pathways. A critical barrier hindering the application of transplantation strategies for a wide range of traumatic injuries is the determination of a suitable time window for therapeutic intervention. Here, we report that a 1 week delay between the lesion and transplantation significantly enhances graft vascularization, survival, and proliferation of grafted cells. More importantly, the delay dramatically increases the density of projections developed by grafted neurons and improves functional repair and recovery as assessed by intravital dynamic imaging and behavioral tests. These findings open new avenues in cell transplantation strategies as they indicate successful brain repair may occur following delayed transplantation.

SIGNIFICANCE STATEMENTCell transplantation represents a promising therapy for cortical trauma. We previously reported that embryonic motor cortical neurons transplanted immediately after lesions in the adult mouse motor cortex restored damaged cortical pathways. A critical barrier hindering the application of transplantation strategies for a wide range of traumatic injuries is the determination of a suitable time window for therapeutic intervention. We demonstrate that a 1 week delay between the lesion and transplantation significantly enhances graft vascularization, survival, proliferation, and the density of the projections developed by grafted neurons. More importantly, the delay has a beneficial impact on functional repair and recovery. These results impact the effectiveness of transplantation strategies in a wide range of traumatic injuries for which therapeutic intervention is not immediately feasible.
Brief encounters of cytochrome c
Authors: Lyons Joseph A , Nissen Poul
Published: January 2017

Transient protein interactions are paramount to life where fast and efficient transfer of information and cargo are often integral to pathways and networks. However, complexes formed by transient protein interactions are often times resistant to direct structural characterization due to their inherent, dynamic nature, so our knowledge to date typically derives from biochemical, biophysical and computational methods. In this issue, Shimada and co‐authors present the crystal structure of the mammalian cytochrome c oxidase in complex with its electron donor cytochrome c, identifying a new class of protein–protein interaction termed “soft and specific”.
Emerging functional roles of nuclear receptors in breast cancer
Authors: Doan Tram B , Graham J Dinny , Clarke Christine L
Published: January 2017

Nuclear receptors (NRs) have been targets of intensive drug development for decades due to their roles as key regulators of multiple developmental, physiological and disease processes. In breast cancer, expression of the estrogen and progesterone receptor remains clinically important in predicting prognosis and determining therapeutic strategies. More recently, there is growing evidence supporting the involvement of multiple nuclear receptors other than the estrogen and progesterone receptors, in the regulation of various processes important to the initiation and progression of breast cancer. We review new insights into the mechanisms of action of NRs made possible by recent advances in genomic technologies and focus on the emerging functional roles of NRs in breast cancer biology, including their involvement in circadian regulation, metabolic reprogramming and breast cancer migration and metastasis.
The Phenotypic Plasticity of Duplicated Genes inSaccharomyces cerevisiaeand the Origin of Adaptations
Authors: Mattenberger Florian , Sabater-Muñoz Beatriz , Toft Christina , Fares Mario A
Published: January 2017

Gene and genome duplication are the major sources of biological innovations in plants and animals. Functional and transcriptional divergence between the copies after gene duplication has been considered the main driver of innovations . However, here we show that increased phenotypic plasticity after duplication plays a more major role than thought before in the origin of adaptations. We perform an exhaustive analysis of the transcriptional alterations of duplicated genes in the unicellular eukaryote Saccharomyces cerevisiae when challenged with five different environmental stresses. Analysis of the transcriptomes of yeast shows that gene duplication increases the transcriptional response to environmental changes, with duplicated genes exhibiting signatures of adaptive transcriptional patterns in response to stress. The mechanism of duplication matters, with whole-genome duplicates being more transcriptionally altered than small-scale duplicates. The predominant transcriptional pattern follows the classic theory of evolution by gene duplication; with one gene copy remaining unaltered under stress, while its sister copy presents large transcriptional plasticity and a prominent role in adaptation. Moreover, we find additional transcriptional profiles that are suggestive of neo- and subfunctionalization of duplicate gene copies. These patterns are strongly correlated with the functional dependencies and sequence divergence profiles of gene copies. We show that, unlike singletons, duplicates respond more specifically to stress, supporting the role of natural selection in the transcriptional plasticity of duplicates. Our results reveal the underlying transcriptional complexity of duplicated genes and its role in the origin of adaptations.
Establecimiento de un sistema de selección in vitro de variedades venezolanas de arroz (Oryza sativa L.) resistentes al hongo Pyricularia grisea.
Authors: Fernandez Da Silva Rafael , Ramírez Pedro , Silva Jorge , Storaci Vincenzo , Cuamo Liaska , De Guglielmo Zoraya , Smits Gunta
Published: January 2017

El arroz, luego del trigo, es el cereal más importante del mundo, sin embargo, es susceptible al ataque de numerosos patógenos, siendo Pyricularia grisea, el más dañino. Este trabajo estableció un sistema de selección in vitro de variedades venezolanas a P. grisea, optimizando el sistema de regeneración por embriogénesis somática (inducción, regeneración y estrés por desecación), sometiendo el callo embriogénico (E) a presión de selección del filtrado crudo “FC” a través de cambios a la misma concentración “MC” o por incrementos progresivos en la concentración “IPC”, obteniendo plantas tolerantes al fitopatógeno. El máximo porcentaje de inducción de callo embriogénico oscilo entre 30-65 %, en las cuatro variedades (Araure-4 y Venezuela 21: 1 mg.L-1 + 2 mg.L-1 K; Cimarrón: 3 mg.L-1 + 2 mg.L-1 K; Centauro: 1 mg.L-1 + 2 mg.L-1 BAP), mientras que la regeneración estuvo entre 44 y 52 % con 0.5 mg.L-1 + 2 mg.L-1 BAP a 48 h de desecación para Centauro y 24 h para las otras tres variedades. La frecuencia regenerativa de los callos E disminuyo a medida que se incrementó la concentración del FC, independientemente del método de presión selectiva. El promedio de plantas diferenciada por variedad, dependió del método de presión usado, siendo el sistema IPC (25 % para Centauro y 50 % para las otras tres variedades) el que mostro los resultados más favorables, evidenciándose que para las condiciones de los sistemas selectivos de FC evaluados, la resistencia expresada a nivel de planta in vivo no corresponde a la encontrada in vitro.
Aislamiento de microorganismos electrogénicos con potencial para reducir cromo hexavalente
Authors: Mora Collazos Alexander , Bravo Montaño Enrique
Published: January 2017

Se realizó el aislamiento de microorganismos cultivables a partir de la biopelícula formada sobre el ánodo de una celda de combustible microbiana puesta en operación durante 30 días; los microorganismos aislados fueron evaluados en su capacidad de producir energía en celdas de combustible microbianas y de reducir el cromo hexavalente, Cr (VI). Se aislaron cinco microorganismos, los cuales fueron caracterizados mediante análisis del gen del ARNr 16S, el cual ubicó a los microorganismos en cuatro géneros bacterianos: Exiguobacterium (CrMFC1), Acinetobacter (CrMFC2), Aeromonas (CrMFC3 y CrMFC5), y Serratia (CrMFC4). Todas las cepas aisladas mostraron actividad electrogénica y capacidad para reducir cromo hexavalente; la cepa de Acinetobacter CrMFC2 mostró el mejor desempeño electroquímico al registrar una densidad de potencia máxima de 18,61 mW/m2; las demás cepas mostraron valores de densidad de potencia máxima entre 4,6 mW/m2 y 7.1 mW/m2. Las cepas de Aeromonas CrMFC5 y Exiguobacterium CrMFC1 mostraron las mejores tasas de reducción de cromo al ser capaces de reducir el 100% del Cr (VI) en menos de 24 horas, destacándose la cepa de Aeromonas CrMFC5 la cual redujo el 100 % de Cr (VI) en 10 horas; las demás cepas redujeron el 100 % del contaminante al cabo de 28 a 30 horas. Los microorganismos aislados en este estudio son escasamente conocidos por su capacidad electrogénica y de reducir el Cr (VI); no obstante, se muestran promisorios para su utilización en sistemas mixtos que involucren la producción de energía acoplada a sistema de biorremediación de aguas contaminadas con cromo.
Complementary description and record of Neocyclops ferrarii (Cyclopidae: Halicyclopinae) from northern Colombia
Authors: Fuentes-Reinés Juan Manuel , Suárez-Morales Eduardo
Published: January 2017

El  copépodo ciclopoide intersticial Neocyclops ferrarii Rocha, 1995 fue encontrado en muestras litorales obtenidas de la bahía Rodadero, al norte de Colombia. Los especímenes de Colombia comparten las características diagnósticas de N. ferrarii de la descripción original. Sin embargo, los especímenes colombianos muestran cierta variación con respecto al material tipo en: 1) el número de dientes en el labro; 2) la longitud de la espina exopodal externa de la pata 5 de la hembra; 3) la longitud relativa de las setas del palpo mandibular; 4) la relación largo/ancho de la rama caudal; 5) la longitud proporcional de las  setas caudales VI / III; 6) la longitud proporcional de las setas caudales  VII / VI; 7) la talla del macho; 8) la relación largo/ancho  de la rama caudal del macho. Este es el segundo registro de esta especie después de su descripción original  en aguas de Belice. En la región Caribe N. ferrarii se asemeja más estrechamente a N. vicinus Herbst, ambos poseen exópodo antenal, anténulas con 12 segmentos en la hembra, la fórmula P3ENP3 de 3, III, pero difieren en la proporción de la rama caudal en la hembra, la longitud de las setas caudales VI / III y VII / VI, el tamaño del macho, el número de segmento de P4ENP, en detalles del armamento del palpo mandibular y en el número de segmentos de la P5 del macho. Esta es la segunda especie de Neocyclops registrada en Colombia y representa una expansión de la distribución conocida de N. ferrarii en la Cuenca del Caribe.
Bacillus effect on the germination and growth of tomato seedlings (Solanum lycopersicum L).
Authors: Cabra Cendales Teresa , Rodríguez González Cristian Alonso , Villota Cuásquer Claudia Patricia , Tapasco Alzate Omar Alberto , Hernández Rodríguez Annia
Published: January 2017

La capacidad para solubilizar fosfatos y producir compuestos indólicos del tipo Ácido Indol Acético, se evaluó en 15 cepas aisladas de residuos lignocelulósicos de higuerilla (Ricinus communis). Para determinar la actividad solubilizadora de fosfatos se realizó una prueba cualitativa utilizando medio de cultivo Pikovskaya y para evaluar la producción de compuestos indólicos (AIA) se empleó la técnica colorimétrica de Salkowsky. Entre los microorganismos evaluados, Bacillus pumilus GIBI 206 mostró tener la capacidad para solubilizar fosfatos y Bacillus subtilis GIBI 200 evidenció capacidad para solubilizar fosfatos y producir Ácido Indolacético (AIA). Para determinar el efecto de la cepa Bacillus subtilis sobre la germinación y promoción de crecimiento, se inoculó en semillas de tomate (Solanum lycopersicum cultivar Santa Clara); la inoculación de las semillas con el microorganismono mostró diferencias estadísticamente significativas en el tiempo de germinación en comparación con el tratamiento control, sin embargo mostró influir positivamente en el desarrollo de las plantas de tomate  generando un aumento significativo sobre la masa y longitud del tallo y de la raíz. Los resultados de esta investigación ofrecen la posibilidad de utilizar a Bacillus subtilis como promotora de crecimiento en plántulas de tomate y en la formulación de bioinsumos
Pardo Pedraza, Diana Paola. 2011. Ellas y nosotras. Luchas y contradicciones en los modos de representar a la mujer (1930-1932). Bogotá: Ediciones Uniandes. ISBN: 978-958-695-660-4
Authors: Martínez Londoño Juliana
Published: January 2017

El libro Ellas y nosotras. Luchas y contradicciones en los modos de representar a la mujer (1930-1932) tiene como punto de partida la propuesta de Pierre Bourdieu (1996) sobre las representaciones, lo que puede expresarse en un presupuesto teórico con implicaciones metodológicas. Teniendo en cuenta que para el sociólogo francés las representaciones obedecen a luchas por la construcción del mundo, la investigación de la historiadora Diana Paola Pardo Pedraza busca enfocarse en los procesos de estas disputas y en los productos que de ellas resultan, y entiende que tanto dominantes como subordinadas participan en la producción y reproducción de estos discursos. Según Bourdieu (1996), los sujetos sociales disponen de su capital simbólico y cultural para legitimar las representaciones que pretenden posicionar en el campo social.
Impacto de la educación formal de postgrado en Management: análisis de las transiciones de carrera de los graduados de un Master of Business Administration
Authors: Rivero Andrea , Davos Guillermo E. , Marino Jorgelina , Rodríguez María Candela
Published: January 2017

Las carreras laborales se han vuelto cada vez más diversas y suelen desarrollarse en múltiples ámbitos organizacionales, con trayectorias profesionales que evidencian frecuentes cambios y transiciones. En este contexto, los individuos asumen una mayor responsabilidad en el desarrollo de su propia carrera profesional, buscando adquirir nuevos conocimientos y habilidades que garanticen su empleabilidad futura, por ejemplo, a través de la realización de programas de formación gerencial. El presente trabajo examina el impacto de la educación de postgrado en Management sobre las transiciones de carrera. Particularmente, se exploran aquellas transiciones realizadas por profesionales graduados de uno de los programas Master of Business Administration (MBA) de mayor prestigio en Argentina. Con sustento en el enfoque de teoría fundada, se identifican tipologías de transiciones de carrera para los profesionales y se indaga acerca de los motivos que los impulsaron a realizarlas. Nuestros resultados revelan ciertos patrones específicos en las transiciones de carrera profesional (transiciones de rol y transiciones organizacionales) que los entrevistados vinculan con la realización del MBA, particularmente en términos de tiempo e impacto percibido. Con base en los resultados observados, se desarrolla un modelo teórico integrador que distingue a las transiciones de carrera en función del momento de su concreción y del tipo de transición.
Coordinación de egresados de la facultad de Ciencias Agrarias
Authors: Jimenez Narvaez Gustavo
Published: January 2017

Editorial
Effect of post-harvest forestry residue management practices on the diversity of epigeal coleopterans
Authors: Ramírez Aliaga Priscila , Huerta Fuentes Amanda , Araya Clericus Jaime Eduardo
Published: January 2017

The aim of this work was to study the effect of post-harvest forestry residue management practices on the epigeal coleopterans diversity and abundance in a 1-yr old Pinus radiata plantation. Approximately 25-yr old P. radiata plantation was available, which was harvested by clear-cutting at the beginning of 2010 in Constitución, central Chile. Three post harvest residue management treatments were installed in a fully randomized design in blocks: 1) a control, where residues were intact left; 2) residue removed (> 2.5 cm diameter); and 3) burned. The coleopterans were sampled in spring and summer, using linear transects with pitfall traps. The abundance and richness, and diversity index of coleopterans were determined. A total of 23 species of 13 families were obtained. Both in the springand summer, the treatment with residues left registered significantly greater abundance and species richness. In the residue management, the practices of intact leaving residue should be considered as the least impacting on diversity and abundance of epigeal coleopterans and is recommended for creating refugee areas to promote diversity of beetles in this area of study.
Spatial distribution of the exchangeable base ratios in the soils of the R.U.T. irrigation district
Authors: López Martínez Carlos José , Echeverri Sanchez Andrés , Menjivar Flores Juan Carlos
Published: January 2017

One of the more important agricultural production centers in Colombia is the R.U.T. Irrigation District, located in the Valle de Cauca. This study evaluated the spatial distribution of ratios of Ca2+, Mg2+, Na+ and K+, along with the percentage of saturation of these bases in the cation exchange capacity. 100 samples were taken at two depths to determine the EC, pH, Ca2+, Mg2+, Na+ and K+. The interpolations were made using the Geostatistical Analyst extension of ArcGis 10.3.1. The best fit semivariogram model was used, obtaining a raster surface with values of each chemical property, with which the plans were generated. The central area of the (La Union) irrigation district was more affected, with percentages of exchangeable magnesium between 40% and 75%, an inverted Ca2+/Mg2+ ratio, and a low calcium saturation percentage. The ratios were high for Mg2+/K+, normal for K+/Mg2+, high for Ca2+/K+, and broad for (Ca2+ + Mg2+)/K+, indicating a probable potassium deficiency that affected fertility. An ionic imbalance in the exchange complex was evident in the main bases of change, which may indicate degradation processes for fertility.
DUGAAN DAERAH PEMIJAHAN IKAN NAPOLEON (Cheilinus undulatus, RUPPELL, 1835) DI SEKITAR PERAIRAN KEPULAUAN ANAMBAS
Authors: Syam Amran Ronny , Mujiyanto Mujiyanto , Putri Masayu Rahmia Anwar
Published: January 2017

Kelimpahan ikan Napoleon di alam sangat rendah, namun larvanya muncul setiap tahun di sekitar perairan Kepulauan Anambas. Saat ini ikan Napoleon yang berukuran satu kilogram masih banyak ditemukan dari hasil pemeliharaan dalam Keramba Jaring Tancap dan Karamba Jaring Apung.  Kajian terhadap keberadaan larva/juvenil ikan Napoleon dan lokasi pemijahan di alam merupakan salah satu indikator dalam upaya mempertahankan keberlanjutan hidup populasi ikan napoleon. Tujuan penelitian ini adalah untuk menduga daerah pemijahan ikan Napoleon di alam berdasarkan ukuran larva/juvenil ikan Napoleon yang tertangkap di alam dan pola arus di sekitar perairan tersebut.  Metode yang digunakan adalah Sensus visual (UVC), enumerasi hasil tangkapan benih dan penentuan pola arus laut di sekitar daerah penangkapan benih. Daerah pemijahan ikan Napoleon belum diketahui pasti. Berdasarkan pola arus laut dan keberadaan larva ikan Napoleon yang berukuran 0,5 inci, dapat diduga pemijahan ikan Napoleon di alam berlangsung tidak jauh dari lokasi ditemukannya larva tersebut, yaitu 1. Tanjung Datuk, 2.Pulau Tembuk, 3. Tanjung Ikan, 4.Teluk Nipah, 5.Teluk Pau, dan 6. Tanjung Sing. Populasi ikan Napoleon dewasa di perairan sekitar Kabupaten Anambas tergolong rendah, namun kemunculan benih ikan Napoleon dapat terjadi setiap tahun terutama pada Oktober/Nopember atau Januari dan Februari. The adult of Napoleon wrasse fish abundance in nature is very low, but the larvae can be found almost at year-round  in the Anambas waters. Currently, napoleon wrasse of one kilogram weight is still found in the fixed net cage and floating net cage. Study on the larva/juvenile existence and spawning site in nature is one of the keys indicators to maintain the sustainability of fish population. The methods used were the visual census (UVC), enumerating the seed catch and identify the pattern of ocean currents around the seed collection area. Spawning area of Napoleon wrasse fish could not exactly be determined yet. Based on the pattern of ocean currents and the smallest size of fish larvae that were found, the spawning site of Napoleon wrasse fish in the wild was estimated to be in around the occurrence location of Napoleon wrasse larvae, namely 1. Tanjung Datuk, 2. Tembuk Island, 3 Tanjung Ikan, 4. Teluk Nipah, 5.Teluk Pau, and 6.Tanjung Sing. The population of adult Napoleon fish in the waters around Anambas was relatively low, but the emergence of Napoleon wrasse larvae can occurs annually, especially in October- November or January-February.
EFEKTIVITAS PENGGUNAAN BERBAGAI JENIS TAG UNTUK MENGETAHUI KELANGSUNGAN HIDUP LOBSTER PASIR (Panulirus homarus Linnaeus, 1758)
Authors: Wijaya Danu , Satria Fayakun , Kartamiharja Endi Setiadi
Published: January 2017

Lobster pasir (Panulirus homarus) merupakan salah satu jenis lobster yang memiliki nilai ekonomis penting dan banyak ditangkap di Indonesia. Salah satu cara untuk mengetahui pertumbuhan, tingkat kelangsungan hidup dan pergerakan lobster di alam adalah dengan menggunakan metode Capture-mark-recapture (CMR). Tiga jenis tag yang biasa dipakai untuk penandaan lobster adalah T-bar, streamer, dan Visual Implant Elastomer (VIE). Percobaan penandaan dilakukan di kolam penampungan di Teluk Gerupuk, Lombok Tengah. Penelitian  ini bertujuan untuk mendapatkan jenis tag yang efektif untuk mengetahui tingkat kelangsungan hidup pada lobster pasir. Penelitian dilakukan dengan menggunakan tiga jenis tag, yaitu T-bar (70 ekor), streamer (76 ekor), dan Visual Implant Elastomer (VIE) (10 ekor) pada dua kelompok ukuran lobster (>20-60 gram dan >60-100 gram). Semua sampel dipelihara dalam bak selama 30 hari yang dilakukan Agustus-September 2015. Hasil penelitian menunjukkan bahwa VIE (60%) memiliki tingkat kelangsungan hidup tertinggi diikuti oleh T-bar (34 %) dan steamer (13 %). Untuk keperluan monitoring di alam, disarankan menggunakan T-bar karena penerapannya praktis dan mudah dideteksi. Panulirus homarus (Spiny Lobster) is one of the lobster species that has an important economic value and highly catched in Indonesia. Capture-mark-recapture (CMR) methods are widely used to study the estimation of population parameters such as abundance, growth, distribution and survival of the wild organism. Three effective techniques commonly used for decapods tagging are  T-bar, streamer, and Visual Implant Elastomer (VIE). Tagging experiments conducted in ponds in the Gulf Gerupuk, Central Lombok. This study aims to determine the effective type of tags and to determine the survival rate of spiny lobster. The study was conducted using three types of tags, T-bar (70 lobsters), streamer (76 lobsters), and Visual Implant Elastomer (VIE) (10 lobsters) divided in two groups size of lobster (> 20-60 grams and> 60- 100 grams). All samples were maintained in the tank for 30 days in August-September, 2015. The results showed that VIE (60%) has the highest survival rate followed by the T-bar (34%) and streamer (13%). For monitoring purposes in nature T-bar are advised to use because of their more practical applicated and easily detected.
A CIRANDA DE TODOS NÓS
Authors: OTELO RENATA CELINA DE MORAIS
Published: January 2017

Da Ciranda litorânea, vivenciada na Praia de Jaguaribe –PE, Lia de Itamaracá pulveriza suas canções e alimenta a tradição da Dança da Ciranda pelos estados brasileiros e no exterior. Seus brincantes se dão a dança e em circularidade, trocam e tocam suas vidas, sua energia, seus movimentos. A partir da fenomenologia merleupontyana, lançamos um olhar sobre este fenômeno dançante.
BACHELARD: REFLEXÕES PARA O ENSINO DE FILOSOFIA EM AGRONOMIA E VITICULTURA
Authors: ROCHA GABRIEL K. DA , ROCHA ANDERSON A. DA , CRUZ JESSICA THAISE C. DA
Published: January 2017

O presente artigo pretende fazer um relato acerca do ensino da disciplina Filosofia no âmbito dos cursos de Agronomia e Enologia do Instituto Federal do Sertão Pernambucano. Por meio de um estudo mais aprofundado da recepção das obras de Bachelard nas diversas ciências, foi possível entender que é possível uma ontogênese de uma epistemologia dessas ciências agrárias também. François Dagognet, que valendo-se de ser um dos principais discípulos de Bachelard, criou toda uma epistemologia das ciências da terra, como também escreveu importantes escritos para a Agronomia no seu livro Des revolutions vertes que envolvem questões como a relação da própria filosofia com a agroecologia. Já no caso da Viticultura e Enologia, Bachelard, em seus diálogos com o parceiro intelectual Gaston Roupnel, em Terra e devaneios do repouso, escreveu sobre as relações do vinho com a alquimia. Um importante estudo que resgata aspectos das ciências que foram esquecidas e negadas pela ciência moderna. Ora, nesse sentido, o presente escrito tem um vasto arcabouço para dialogar essas possibilidades de expansão dos limites e fronteiras da própria filosofia no contexto do ensino técnico.
ETHOS, DECORO, LIBERDADE: NOTAS SOBRE OS REGIMES DE IDENTIFICAÇÃO DAS ARTES NA OBRA DE JACQUES RANCIÈRE
Authors: PELLEJERO EDUARDO
Published: January 2017

Numa das revisitações críticas mais importantes das últimas décadas, a obra de Jacques Rancière propõe uma redefinição do modo de identificação da arte que domina a nossa época. Essa problematização das categorias históricas tradicionais (modernismo, modernidade, pós-modernidade), em ordem a repensar as relações entre as práticas artísticas e as práticas políticas, implica uma reconsideração das definições da arte e da política, assim como das tarefas da crítica. O presente ensaio pretende oferecer uma aproximação aos conceitos em jogo nessa empresa.
O MTST E O PMCMV: O “PODER POPULAR” PRÓPRIO AO LULISMO
Authors: GUERREIRO ISADORA DE ANDRADE
Published: January 2017

A produção do espaço realizada por movimentos populares por meio do Programa Minha Casa Minha Vida (PMCMV) – Entidades é uma entrada privilegiada de reflexão acerca do lulismo, pois dá conta de certa totalidade do processo social na qual estão imbricadas determinações econômicas, políticas, sociais e culturais. Nestes termos, apresentamos um estudo de caso específico, a partir do qual são retirados elementos para tal reflexão: os conjuntos João Cândido e Chico Mendes, localizados em Taboão da Serra-SP, realizados pelo Movimento dos Trabalhadores Sem Teto (MTST). Tanto o processo de projeto quanto a forma urbana cristalizada são expressões de determinada ressonância entre o sistema de gerenciamento político lulista – que dá forma à função dependente do Brasil no mercado mundial – e uma organização popular que cresce se apoiando no sujeito político consumidor forjado nesta conjuntura. São elementos que colocam questionamentos acerca da potencialidade transformadora deste tipo de arranjo político e social, no qual a aliança dos trabalhadores se dá com o capital em nome da criação de certo “poder popular” distante da formação do sujeito político autônomo, produtor de um novo programa para as cidades.
Development and validation of the Bush-Francis Catatonia Rating Scale – Brazilian version
Authors: Nunes Ana Letícia Santos , Filgueiras Alberto , Nicolato Rodrigo , Alvarenga Jussara Mendonça , Silveira Luciana Angélica Silva , Silva Rafael Assis da , Cheniaux Elie
Published: January 2017

ABSTRACT Objective: This article aims to describe the adaptation and translation process of the Bush-Francis Catatonia Rating Scale (BFCRS) and its reduced version, the Bush-Francis Catatonia Screening Instrument (BFCSI) for Brazilian Portuguese, as well as its validation. Methods: Semantic equivalence processes included four steps: translation, back translation, evaluation of semantic equivalence and a pilot-study. Validation consisted of simultaneous applications of the instrument in Portuguese by two examiners in 30 catatonic and 30 non-catatonic patients. Results: Total scores averaged 20.07 for the complete scale and 7.80 for its reduced version among catatonic patients, compared with 0.47 and 0.20 among non-catatonic patients, respectively. Overall values of inter-rater reliability of the instruments were 0.97 for the BFCSI and 0.96 for the BFCRS. Conclusion: The scale's version in Portuguese proved to be valid and was able to distinguish between catatonic and non-catatonic patients. It was also reliable, with inter-evaluator reliability indexes as high as those of the original instrument.
Massive thymoma of the mid-posterior mediastinum: an unprecedented case in a young adult
Authors: Oliveira Karen Fernandes de , Rodrigues Marcio Maciel , Lopes Gesner Pereira , Almeida Renan Sandoval de , Lusvarghi Juliana Lopes , Santos João Paulo Vieira dos
Published: January 2017

Abstract We report an unprecedented case of ectopic thymoma in a young adult. A 33-year-old male presented with a 10-day history of non-productive cough and fever. Investigation revealed mediastinal widening without pulmonary involvement. Computed tomography showed a large mass-14.8 × 10.8 × 8.4 cm-in the mid-posterior mediastinum, and a biopsy obtained by video-assisted thoracoscopy indicated that the mass was a tumor. Immunohistochemistry showed combined thymoma type AB1. Because of the considerable proportions of the tumor and its close proximity to major structures, the patient was treated with chemotherapy.
Ultrasound findings of the physiological changes and most common breast diseases during pregnancy and lactation
Authors: Holanda Antônio Arildo Reginaldo de ,   Universidade Federal do Rio Grande do Norte,  Brazil, Gonçalves Ana Katherine da Silveira , Medeiros Robinson Dias de , Oliveira António Manuel Gouveia de , Maranhão Técia Maria de Oliveira ,   Universidade Federal do Rio Grande do Norte,  Brazil,   Universidade Federal do Rio Grande do Norte,  Brazil,   Universidade Federal do Rio Grande do Norte,  Brazil,   Universidade Federal do Rio Grande do Norte,  Brazil
Published: January 2017

Abstract Because of the physiological changes that occur during pregnancy and lactation, diagnostic ultrasound of the breast during these periods is a challenge for physicians. Therefore, a comprehensive understanding of imaging, anatomy, and physiology of the breast is important to effectively diagnosing diseases that can arise in women who are pregnancy or lactating. The aim of this article was to review the physiological changes that occur in the breasts during pregnancy and lactation, as well as to describe the main features of the breast diseases that occur most frequently during these periods.
Estudo das propriedades reológicas, mecânicas e de blindagem eletromagnética de misturas elastoméricas envolvendo borracha nitrílica (NBR) e borracha nitrílica carboxilada (XNBR)
Authors: Souto Loan Filipi Calheiros , Cossa Matheus Magioli , Soares Bluma Guenther , Siqueira Alex da Silva
Published: January 2017

Resumo Neste trabalho foram avaliadas as propriedades reológicas, mecânicas e de blindagem eletromagnética de misturas elastoméricas envolvendo borracha nitrílica (NBR) e borracha nitrílica carboxilada (XNBR) formuladas com 30 pcr de negro de fumo condutor. As proporções de NBR/XNBR estudadas foram 100/0, 80/20, 50/50, 20/80, 10/90 e 0/100. Os resultados obtidos demonstraram que o aumento no teor de XNBR reduziu a taxa de vulcanização (CRI), contudo as propriedades mecânicas aumentaram em relação às amostras com alto teor de NBR. Através da análise de microscopia eletrônica de varredura foi observada uma melhor dispersão do negro de fumo condutor nas composições ricas em XNBR, que também apresentaram maior resistência ao inchamento. Estes resultados corroboram com os valores encontrados para a resistência à tração. A maior atenuação na faixa do radar foi observada também para a amostra contendo somente a borracha nitrílica carboxilada, o valor de atenuação encontrado foi de 50% da energia emitida, aproximadamente -3 dB.
Nanocompósitos de polietileno/argila bentonítica com propriedades antichama
Authors: Oliveira Sara Verusca de , Araújo Edcleide Maria , Pereira Celeste Margarida Correia , Leite Amanda Melissa Damião
Published: January 2017

Resumo Nesta pesquisa, nanocompósitos de polietileno de alta densidade (PEAD) com argila montmorilonita (MMT) e argila organofílica (OMMT) foram preparados pelo método de intercalação por fusão, com o objetivo de examinar o efeito antichama do material obtido. Para fins de comparação, utilizou-se um produto comercial retardante de chama (RCP) na matriz de PEAD. O polietileno enxertado com anidrido maleico (PE-g-MA) foi utilizado como um compatibilizante dos sistemas. O PEAD e seus sistemas foram avaliados por difração de raios-X (DRX), inflamabilidade (UL94HB, índice de oxigênio (LOI) e calorimetria de cone). Os difratogramas de raios-X ilustraram que provavelmente ocorreu intercalação e/ou esfoliação parcial, com a formação de nanocompósito e/ou microcompósito. Os resultados obtidos para o índice de oxigênio mostraram que tanto o PEAD como seus sistemas apresentaram propriedades retardantes de chama. Por meio dos ensaios de inflamabilidade horizontal, verificou-se que a presença de 1% de argila MMT reduziu em 25% a inflamabilidade de PEAD e, por calorimetria de cone foi visto que a argila OMMT com percentagem de 3, 6 e 9% atuou reduzindo também a inflamabilidade dos nanocompósitos.