bluuebunny/crossref_metadata_2025 huggingface dataset:
Modelling PAH Degradation in Contaminated Soils in Canada using a Modified Process‐Based Model (DNDC)
Authors: Amponsah Nana Y. , Wang Junye , Zhao Lian
Published: May 2019

Core Ideas

A novel process‐based model for degradation of soil PAHs is proposed.

Model is based on dynamic interactions between water, soil, vegetation and climate.

Model effectively simulates biogeochemical processes of PAH degradation in soils.

Simulated results agree well with data from remediation sites in Alberta.

Polycyclic aromatic hydrocarbons (PAHs) are persistent pollutants of concern. A process‐based model of the PAH degradation can improve our understanding of ecological drivers and processes. In this paper, a process‐based biogeochemistry model, DeNitrification‐DeComposition (DNDC) is modified to simulate the dynamics of PAHs degradation in soils at abandoned oil and gas well sites. This new version of DNDC‐Organic Pollutants, called DNDC‐OP, coupled the rates of PAH degradation with dynamics of soil, vegetation and climate, such as soil moisture and temperature. The model was parameterized and validated against datasets of four soil PAHs: pyrene, fluorene, chrysene and anthracene, at three different abandoned oil and gas well site locations in Alberta, Canada. The sensitivity of the parameters was analyzed and tested. The simulated results were in good agreement with the measured data with a coefficient of determination (R2) of 70 to 97%, and the root mean square error (RMSE) of 4.5 to 9.1 at all three sites. We also evaluated the influence of environmental factors, such as soil temperature and moisture, on the degradation of PAHs. An increased degradation of all four PAHs occurred with increasing soil moisture content. An increase of soil temperature from 10 to 20°C and subsequently to 25°C resulted in a decreased appearance of all four PAHs from the three well sites. The result shows that this model can be used as a tool for evaluating PAH degradation for effective reclamation strategies.
Field Evidence of a Natural Capillary Barrier in a Gravel Alluvial Aquifer
Authors: Halihan Todd , Miller Ronald B. , Correll David , Heeren Derek M. , Fox Garey A.
Published: May 2019

Core Ideas

A tracer test in a gravel aquifer detected a natural capillary barrier.

Electrical resistivity data combined with well data found two separate vadose zone flow paths.

Phosphorus transport is limited, as it needs to migrate through soil before gravel.

Ozark streams commonly feature “composite” floodplains, in which the vadose zone consists of silt or silt loam soils (∼1 m thick) overlying gravel subsoil. Previous work has shown that preferential flow paths can exist within the gravel subsoil, which can conduct water and P at rates exceeding the sorption capacity of the gravel. At a site on Barren Fork Creek, a 1‐ by 1‐m infiltration plot was constructed and an infiltration experiment was performed using sequentially introduced solutes including P (the constituent of regulatory interest), Rhodamine‐WT (Rh‐WT, a visual tracer), and Cl− (an electrical tracer). The solute transport was measured with monitoring wells (MWs) placed 1 m from the plot boundary and 5 m down the groundwater flow gradient using an electrical resistivity imaging (ERI) array. The ERI method utilized differences between a pre‐infiltration background image and subsequent temporal images taken during the test to quantify changes induced by the tracers. The infiltration test maintained a steady‐state flow rate of 4.5 L min−1 for 84.75 h. Electrical resistivity imaging data showed significant changes in resistivity induced by the tracers within the soil vadose zone under the plot but no similar changes within the gravel, indicating that the interface was acting as a capillary barrier. Electrical resistivity images 5 m away from the plot showed tracer breakthrough into the gravel in areas not sampled by the MWs. Solute detection was limited in MWs, indicating that MWs could not adequately monitor movement below the capillary barrier because it controlled migration of solute to the heterogeneous phreatic zone.
Psicología del absurdo: la paradoja de la subjetividad
Authors: Bañol López Walter , Rodríguez Bustamante Alexander
Published: May 2019

El texto posibilita adentrarse y reflexionar sobre el mundo psíquico y lo subjetivo que impera en él. Además de ello aborda el objeto de estudio de la psicología, el psiquismo, desde dos conceptos específicos, lo absurdo y lo paradójico.
La posesión demoníaca: psicosis, neurosis histérica o trastorno neuropsicológico
Authors: Vallejo Grajales Duván
Published: May 2019

La posesión demoníaca, descrita por innumerables culturas a lo largo de la historia, sigue siendo actualmente un tema a discutir dentro del debate entre ciencia y religión. Este ensayo reflexivo, se ha propuesto analizar el fenómeno y abordarlo desde diversas perspectivas psicológicas que nos brinden una posible explicación lógica y coherente del suceso con el fin de esclarecerlo frente a las supersticiones de la cultura a través del método hermenéutico. Los signos de los posesos pueden deberse a otros factores, tanto neurobiológicos como psicológicos, como, por ejemplo, la aversión a los objetos religiosos y el surgimiento de una segunda personalidad, puede deberse a un cuadro de trastorno conversivo (neurosis) o presentarse en la esquizofrenia (psicosis), y la amnesia después del episodio puede deberse a la sobrecarga funcional del cerebro. Existen otros signos más complejos de explicar, como lo son el hablar en lenguas diferentes o la levitación; el primero lo trataremos descriptivamente desde el síndrome del idioma extranjero, que puede presentarse producto de factores neurológicos o en la misma psicosis, y la levitación podemos verla desde la física, con la llamada levitación magnética, a través de una hipótesis en la cual esta condición podría cumplirse en los seres humanos debido a la sobreexcitación cerebral que generaría cierto campo magnético. Finalmente, dentro de los aportes del psicoanálisis encontramos la neurosis como forma en que se manifiesta este fenómeno y damos por concluido que la posesión demoníaca se debe a dos sucesos: neurosis o psicosis, recalcando la importancia del análisis del contexto para realizar criterios diferenciadores en nuestro diagnóstico psicológico.
Percepção dos Gestores sobre os Mecanismos do Sistema de Controle Gerencial: Um Estudo com Gestores da BRF FOODS S.A
Authors: Dal Magro Cristian Baú , Manfroi Leossânia , Guze Rosane , Lavarda Carlos Eduardo Facin
Published: May 2019

Este estudo teve o objetivo identificar a percepção dos gestores, que atuam em uma mesma organização, sobre o uso e a extensão de mecanismos do sistema de controle gerencial. A pesquisa caracteriza-se como um estudo descritivo, de levantamento do tipo survey e com abordagem quantitativa dos dados. A empresa estudada é a BRF FOODS S.A., considerada de grande porte e com estrutura formalizada. A amostra da pesquisa compreendeu 31 gestores de alto escalão, contemplando diretores, supervisores e gerentes. Conclui-se que a organização em estudo possui estrutura administrativa e de produção formalizada, contudo, mesmo com tais características, nem todos os mecanismos do sistema de controle gerencial são disseminados e percebidos com uma mesma intensidade pelos gestores de diferentes unidades, como pode ser citado o relatório orçamentário, análise de variações, auditoria externa para qualidade dos padrões e procedimentos, comunicação horizontal, compartilhamento de recursos, sistema de monitoramento das tarefas e autonomia dos gestores.
RELAÇÕES ENTRE RACIONALIDADES NA GESTÃO ORGANIZACIONAL: UM ESTUDO DE CASO EM UMA INSTITUIÇÃO DE ENSINO SUPERIOR (IES) EM CURITIBA
Authors: Alves Elizeu Barroso , Adamoglu de Oliveira Samir
Published: May 2019

O presente artigo tem por objetivo analisar como ocorre a relação entre a racionalidade instrumental e a racionalidade substantiva na prática discursiva organizacional. A pesquisa foi de abordagem qualitativa, com delineamento descritivo e estudo de caso em uma IES da cidade de Curitiba (PR), seguindo corte seccional, com dados coletados através de entrevistas, triangulados com observação participante e análise documental. Verificou-se a ocorrência de que tais racionalidades coexistem, ­­se intricando em conflitos. Evidencia-se como o poder pode – e é usado – para conter, silenciar, gerenciar ou controlar tais conflitos de ações racionais. Conclui-se que tal relação ocorre de maneira a fazer coexistir as duas racionalidades; porém, o uso de poder simbólico ocorre para garantir a solução de conflitos racionais de modo a fazer com que a razão instrumental seja mascarada, dando a falsa sensação de uma inclinação para a razão substantiva, por meio de práticas discursivas.
The Role of Climate on Residential Architecture and Living Culture: an Example of Gaziantep
Authors: Tastan Hasan
Published: May 2019

In architectural literature, researchers argue that there are many factors that affect architecture. Culture, local materials, climate, socio-economic conditions, and topography are the most influential factors in the formation of the architecture of a region. The climate of the place is one of the most important factors in the construction of the built environment for communities throughout history. In a certain region, the living spaces that receive the original form with the influence of the climate and the cultures influence the daily lives of the people living there over time and change the way of life. In this context, it can be said that there is an interaction between traditional architecture, climate and culture.Gaziantep is an important city in the south-east of Turkey. Gaziantep is located to the north of Mesopotamia where the first civilizations originated and settled. And has hosted many civilizations that have been important trade centers throughout history. Throughout history, housing areas within and around the castle have been included in the city. The city is characterized by an urban texture suitable for hot and arid climatic conditions. In Gaziantep, houses are built around a courtyard completely separated from the street, in accordance with the Mesopotamian tradition. Traditional Gaziantep residences which lined up around narrow streets stand out with its materials, building elements and unique details.The aim of this study is to reveal the construction techniques, ecological design principles of the houses which produced by Greek, Turkish and Armenian masters in accordance with the warm climate conditions and to discuss its applicability today. In this context, the traditional Gaziantep dwellings have been evaluated with six criteria for the ecological evaluation of traditional houses and the use of the obtained data in a new design. These are Settlement Texture and Streets, Building Form and Orientation, Spatial organization, Construction System and Materials, Physical Properties of Building Façade. In addition to the stone materials used in Gaziantep houses, building elements such as courtyard, water element, bird windows have positive effects on the building biology, and some of the findings that have ecological advantages of vine-like plants and gardening. In the conclusion of the study, an ecological and environmentally compatible project experiment was carried out which carried the findings and the basic principles of the traditional architecture.
Quality of Life Indicators in Sustainable Urban Areas
Authors: Abunazel Ahmed , Hammad Yasmin , Abd AlAziz Mohamed , Gouda Essam , Anis Wagdy
Published: May 2019

Quality of life is a concept that has been discussed recently in various studies, as a response to many problems facing the compacted cities, all over the world as well as in Egypt.The purpose of this paper is to concentrate mainly on the concept of urban quality of life, it has a multi-dimensional and complex issue, the framework of this study is to find the (missing available urban quality of life indicators) in compacted cities.Although, there were design concepts of sustainable urban form in (High-density residential areas) with mixed land uses, which have a high degree of social interaction, this paper also aims to facilitate the participation of urban authorities in process of measuring, and analyzing the urban quality of life with providing an extra element for design concepts of a sustainable urban area such as greening & renewable energy.The study is beneficial for who interested in the field of sustainable development, and it gives indicators such as (GDP) (gross domestic product) which help the Simi sustainable areas to be a more efficient with urban quality of life indicators.GDP is highly useful for measuring marketing production and providing an indicative snapshot of an economy at a given time, this research uses the descriptive analytical and statistical approach to identify a quality of life indicators through study the Interrelationships environmental, social, economic and physical elements applying on compacted Egyptian cities.Finally, to raise the value of benefit from the resources and sustainable development within the compacted residential areas to get the required indicators of quality of urban life and managed.
How New Technologies Can Promote an Active and Healthy City. Digital Platform to Identify Areas of Informal Sport Practice in the City of Malaga
Authors: Martın Marta Cornax , De Salazar Nuria Nebot Gomez , Gil Ana Luque , Rosa-Jimenez Carlos
Published: May 2019

In recent years the urban public space has become the largest casual sports infrastructure in cities and suburbs. WHO establishes a direct relationship between the Active Healthy City, social cohesion of communities and public space. This approach provides a framework for research and work on the design of the city and urban space as support for this sport practice. Moreover, new technologies provide an opportunity to promote the sport in the city.“Malaga Activa” digital platform project is an initiative that wants to promote the informal sport practice on the urban public space (outside the regulated sports facilities) and healthy living in the neighborhoods of the city of Malaga. This paper presents the results of the first phase of the project identifying the active sport areas in the public space -those in which physical and casual sport activities take place-. It also includes a methodology for the analisys and promotion of public space as an activator of phsycal activity, which includes a performance test of the created digital platform, as well as an assessment of the experience and possible improvements to be incorporated in the successive phases of the project.
Traffic Management in Residential Areas: Case Study the South District of Luxor City, Egypt
Authors: Elmorshedy Riam Mohamed Elsagher Mahmod
Published: May 2019

Traffic management includes the implementation of a wide range of measures, devices and techniques based on a combination of parallel strategies, to improve safety and livability on streets by reducing the effect of vehicular traffic.The local residential streets have the intended traffic function of providing access to limited numbers of local residents. Traffic management for residential streets helps to preserve and enhance streets by minimizing the negative impacts of traffic and seeks to improve safety for pedestrians, cyclists, motorists and all other road users.The problem is that the planning of Egypt’s existing cities depended on grid and linear network streets withoutseparation land-use. Where the residential areas are always mixed land-use, (residential and commercial uses). This situation reflects on congestion residential areas; noisy, Traffic confusion, . . . . . . etc. So, the author aimed to create the traffic methodological for existing residential areas.This paper is applied in the south district of Luxor city, where the city’s authorities took some procedures formanaging traffic to no avail.This practical study includes: designing the traffic methodological framework, applying the framework at casestudy, and comparing the designed model with the current state of case study. The software programs used are SPSS and excel.The results show that the current state ignores some principles in comparison to the designed model. The important recommendations of research are: the designed model should be applied at case study, and the framework of traffic methodological for existing residential areas is applicable in different areas.
Smart Parking as One of the Smart Cities Mechanisms
Authors: Fouad Walid
Published: May 2019

The study aims at determining the importance of smart parking as one of the basic applications of smart cities; to solve the urgent problems of central business district in the capital cities in the Middle East, which suffer from many problems in traffic and thus negatively effects on quality of life.The study deals with central business district in the city of Cairo, which suffers from serious traffic problems, as a result of the steady increase in demand for parking, especially with the rapid population growth and the absence of places for future expansions.The importance of the study is to develop planning solutions to solve the issue of the paucity of parking area and the problems resulting from them, through intelligent techniques that ensure minimizing the problem and achieve sustainable development.The methodology of the study was based on an analysis of the problem of lack of parking spaces in central business district in Cairo city, its causes, negative results on traffic and quality of life, and analysis of previous studies that dealt with this problem through traditional methods. and the determinants facing the decision maker planning, and ends the study to develop a comprehensive plan for the smart parking of the Central Business District in the city of Cairo as an example.
Urban Identity Formation in Light Characteristics of Future Cities
Authors: Elsayed Youssef Abdelhakeem
Published: May 2019

With the beginning of the 21st century and with the increase of urban growth in cities, the impact on urban cities significantly, especially environmental changes, climate, social and economic, which loss of some cities urban identity, As planners and designers of cities, we must facing these challenges by identifying the characteristics of future cities to Conservation our identity.
Evaluación de la lógica dominante del servicio para el caso de los seguros de automóviles en Colombia
Authors: Panche-Vidales Carolina , Rojas-Berrio Sandra Patricia , Robayo-Pinzón Óscar Javier
Published: May 2019

El servicio es uno de los ejes fundamentales de toda organización, el cual está siendo evaluado continuamente por el cliente, generando en él vínculos relacionales de corto, mediano o largo tiempo. El sector asegurador no es ajeno a este escenario toda vez que los clientes viven momentos de servicio únicos e irrepetibles, en los que la empatía juega un papel importante para marcar la diferencia; por tanto, este trabajo tiene como propósito evaluar las premisas fundamentales de la lógica dominante del servicio con expertos de seguros de automóviles en Colombia, buscando identificar las premisas de mayor impacto e interpretar los concepto de co-creación y valor percibido para los expertos de  seguros de automóviles en Colombia. El abordaje del problema se realiza desde el método Delphi, una técnica basada en preguntas acerca de la visión del futuro en donde los expertos en seguros brindan su opinión hasta lograr consenso y congruencia de lo que puede prospectarse para el sector asegurador. Los principales hallazgos muestran que el sector puede prestar un mejor servicio invirtiendo en desarrollos tecnológicos en donde los procesos sean agiles, claros respecto a las coberturas adquiridas y que acompañen permanente a sus asegurados.
Targeting Kinase Interaction Networks: A New Paradigm in PPI Based Design of Kinase Inhibitors
Authors: Jenardhanan Pranitha , Panneerselvam Manivel , Mathur Premendu P.
Published: May 2019

Background:

Kinases are key modulators in regulating diverse range of cellular activities
and are an essential part of the protein-protein interactome. Understanding the interaction of kinases
with different substrates and other proteins is vital to decode the cell signaling machinery as well as
causative mechanism for disease onset and progression.

Objective:

The objective of this review is to present all studies on the structure and function of few
important kinases and highlight the protein-protein interaction (PPI) mechanism of kinases and the
kinase specific interactome databases and how such studies could be utilized to develop anticancer
drugs.

Methods:

The article is a review of the detailed description of the various domains in kinases that are
involved in protein-protein interactions and specific inhibitors developed targeting these PPI domains.

Results:

The review has surfaced in depth the interacting domains in key kinases and their features
and the roles of PPI in the human kinome and the various signaling cascades that are involved in certain
types of cancer.

Conclusion:

The insight availed into the mechanism of existing peptide inhibitors and peptidomimetics
against kinases will pave way for the design and generation of domain specific peptide inhibitors
with better productivity and efficiency and the various software and servers available can be of great
use for the identification and analysis of protein-protein interactions.
Microvascular Complications of Type 2 Diabetes Mellitus
Authors: Faselis Charles , Katsimardou Alexandra , Imprialos Konstantinos , Deligkaris Pavlos , Kallistratos Manolis , Dimitriadis Kiriakos
Published: May 2019

Background:

Type 2 diabetes mellitus (T2DM) is a chronic, non communicable, multisystem disease that has reached epidemic proportions. Chronic exposure to hyperglycaemia affects the microvasculature, eventually leading to diabetic nephropathy, retinopathy and neuropathy with high impact on the quality of life and overall life expectancy. Sexual dysfunction is an often-overlooked microvascular complication of T2DM, with a complex pathogenesis originating from endothelial dysfunction.

Objective:

The purpose of this review is to present current definitions, epidemiological data and risk factors for diabetic retinopathy, nephropathy, neuropathy and sexual dysfunction. We also describe the clinical and laboratory evaluation that is mandatory for the diagnosis of these conditions.

Method:

A comprehensive review of the literature was performed to identify data from clinical studies for the prevalence, risk factors and diagnostic methods of microvascular complications of T2DM.

Results:

Diabetic nephropathy and retinopathy affect approximately 25% of patients with T2DM; diabetic neuropathy is encountered in almost 50% of the diabetic population, while the prevalence of erectile dysfunction ranges from 35-90% in diabetic men. The duration of T2DM along with glycemic, blood pressure and lipid control are common risk factors for the development of these complications. Criteria for the diagnosis of these conditions are well established, but exclusion of other causes is mandatory.

Conclusion:

Early detection of microvascular complications associated with T2DM is important, as early intervention leads to better outcomes. However, this requires awareness of their definition, prevalence and diagnostic modalities.
Knowledge and Awareness of Oral Manifestations of Diabetes Mellitus and Oral Health Assessment among Diabetes Mellitus Patients- A Cross Sectional Study
Authors: Parakh Mayank Kumar , Kasi Anand , Ayyappan Vignesh , Subramani Prabhu
Published: May 2019

Background and Objectives:

Diabetes mellitus has increased rapidly throughout the world.
The objectives of our study were to assess the knowledge and awareness about oral manifestations of
diabetes, among type 2 diabetes mellitus patients, their risk for developing oral diseases due to complications
associated with diabetes mellitus, and at same time, to perform an oral examination to detect
these oral symptoms, if present any, along with the recording of Decayed Missing Filled Teeth Index
(DMFT) and Community Periodontal Index (CPI) index.

Methodology:

Structured questionnaires consisting of 12 different statements on the knowledge base of
oral manifestations of diabetes mellitus were distributed to 447 Type 2 diabetes mellitus patients.
Following this oral examination, brushing and dental visit history were noted, and CPI index and
DMFT indices were recorded in all the patients.

Results:

Results showed that the knowledge about oral manifestations of diabetes mellitus was poor
with a mean value of 4.92 out of a possible score of 12. Among the study subjects, the average score of
men was 4.42 while that of females, was 5.41. These scores, when subjected to statistical analysis, were
highly significant. (P value- 0.005) Subjects also showed significantly high DMFT (P value <0.001)
and CPI scores (P value- 0.270).

Conclusion:

Our study concluded that there is a significant lack of knowledge about oral manifestations
of diabetes mellitus among patients and hence steps have to be taken to increase their awareness
through various outreach programs. All health professionals need to work together for promoting better
oral health so that oral complications of diabetes can be brought under control.
Atrial Fibrillation and Hypertension: "Quo Vadis"
Authors: Walker McCall , Patel Paras , Kwon Osung , Koene Ryan J , Duprez Daniel A. , Kwon Younghoon
Published: May 2019

:

Hypertension is one of the most well-established risk factors for atrial fibrillation. Long-standing untreated hypertension leads to structural remodeling and electrophysiologic alterations causing an atrial myopathy that forms a vulnerable substrate for the development and maintenance of atrial fibrillation. Hypertension-induced hemodynamic, inflammatory, hormonal, and autonomic changes all appear to be important contributing factors. Furthermore, hypertension is also associated with several atrial fibrillation-related comorbidities. As such, hypertension may represent an important target for therapy in atrial fibrillation. Clinicians should be aware of pitfalls of the blood pressure measurement in atrial fibrillation. While the auscultatory method is preferred, the use of automated devices appears to be an acceptable method in the ambulatory setting. There are pathophysiologic bases and emerging clinical evidence suggesting the benefit of renin-angiotensin system inhibition in risk reduction of atrial fibrillation development particularly in patients with left ventricular hypertrophy or left ventricular dysfunction. A better understanding of hypertension’s pathophysiologic link to atrial fibrillation may lead to the development of novel therapies for the primary prevention of atrial fibrillation. Finally, future studies are needed to address optimal blood pressure goal to minimize the risk of atrial fibrillation-related complications.
Melatonin Modulates Regulation of NOX2 and NOX4 Following Irradiation in the Lung
Authors: Najafi Masoud , Shirazi Alireza , Motevaseli Elahe , Geraily Ghazale , Amini Peyman , Tooli Leila Farhadi , Shabeeb Dheyauldeen
Published: May 2019

Background:

Exposure to ionizing radiation may lead to chronic upregulation of inflammatory
mediators and pro-oxidant enzymes, which give rise to continuous production of reactive
oxygen species (ROS). NADPH oxidases are among the most important ROS producing enzymes.
Their upregulation is associated with DNA damage and genomic instability. In the present
study, we sought to determine the expressions of NADPH oxidases; NOX2 and NOX4, in rat’s lung
following whole body or pelvis irradiation. In addition, we evaluated the protective effect of melatonin
on the expressions of NOX2 and NOX4, as well as oxidative DNA injury.

Materials and Methods:

35 male rats were divided into 7 groups, G1: control; G2: melatonin (100 mg/kg) treatment;
G3: whole body irradiation (2 Gy); G4: melatonin plus whole body irradiation; G5: local
irradiation to pelvis area; G6: melatonin treatment plus 2 Gy gamma rays to pelvis area; G7: scatter
group. All the rats were sacrificed after 24 h. afterwards, the expressions of TGFβR1, Smad2, NF-
κB, NOX2 and NOX4 were detected using real-time PCR. Also, the level of 8-OHdG was detected
by ELISA, and NOX2 and NOX4 protein levels were detected by western blot.

Results:

Whole body irradiation led to the upregulation of all genes, while local pelvis irradiation
caused upregulation of TGFβR1, NF-κB, NOX2 and NOX4, as well as protein levels of NOX2 and
NOX4. Treatment with melatonin reduced the expressions of these genes and also alleviated oxidative
injury in both targeted and non-targeted lung tissues. Results also showed no significant reduction
for NOX2 and NOX4 in bystander tissues following melatonin treatment.

Conclusion:

It is possible that upregulation of NOX2 and NOX4 is involved in radiation-induced
targeted and non-targeted lung injury. Melatonin may reduce oxidative stress following upregulation
of these enzymes in directly irradiated lung tissues but not for bystander.
Accuracy of the Multisensory Wristwatch Polar Vantage's Estimation of Energy Expenditure in Various Activities: Instrument Validation Study (Preprint)
Authors: Gilgen-Ammann Rahel , Schweizer Theresa , Wyss Thomas
Published: May 2019

BACKGROUND

Sport watches and fitness trackers provide a feasible way of obtaining energy expenditure (EE) estimations in daily life as well as during exercise. However, today’s popular wrist-worn technologies show only poor-to-moderate EE accuracy. Recently, the invention of optical heart rate measurement and the further development of accelerometers in wrist units have opened up the possibility of measuring EE.

OBJECTIVE

This study aimed to validate the new multisensory wristwatch Polar Vantage and its EE estimation in healthy individuals during low-to-high-intensity activities against indirect calorimetry.

METHODS

Overall, 30 volunteers (15 females; mean age 29.5 [SD 5.1] years; mean height 1.7 [SD 0.8] m; mean weight 67.5 [SD 8.7] kg; mean maximal oxygen uptake 53.4 [SD 6.8] mL/min·kg) performed 7 activities—ranging in intensity from sitting to playing floorball—in a semistructured indoor environment for 10 min each, with 2-min breaks in between. These activities were performed while wearing the Polar Vantage M wristwatch and the MetaMax 3B spirometer.

RESULTS

After EE estimation, a mean (SD) of 69.1 (42.7) kcal and 71.4 (37.8) kcal per 10-min activity were reported for the MetaMax 3B and the Polar Vantage, respectively, with a strong correlation of r=0.892 (P<.001). The systematic bias was 2.3 kcal (3.3%), with 37.8 kcal limits of agreement. The lowest mean absolute percentage errors were reported during the sitting and reading activities (9.1%), and the highest error rates during household chores (31.4%). On average, 59.5% of the mean EE values obtained by the Polar Vantage were within ±20% of accuracy when compared with the MetaMax 3B. The activity intensity quantified by perceived exertion (odds ratio [OR] 2.028; P<.001) and wrist circumference (OR −1.533; P=.03) predicted 29% of the error rates within the Polar Vantage.

CONCLUSIONS

The Polar Vantage has a statistically moderate-to-good accuracy in EE estimation that is activity dependent. During sitting and reading activities, the EE estimation is very good, whereas during nonsteady activities that require wrist and arm movement, the EE accuracy is only moderate. However, compared with other available wrist-worn EE monitors, the Polar Vantage can be recommended, as it performs among the best.
La educación integral : un 'oficio' de mujeres
Authors: Vicioso Chiqui
Published: May 2019

Este texto evalúa la educación integral de mujeres, donde se muestra que en América Latina una de cada cuatro mujeres adultas no puede leer ni escribir, y sólo el 65% de las niñas entre 5-19 años de edad están inscritas en las escuelas primarias e intermedias.
Elogio de la ambigüedad
Authors: Alcóver Juan
Published: May 2019

Este texto de Juan Alcóver muestra las cosas en común en la vivencia de Latinoaméricanos y Españoles.
Desarrollo de la química en la República Dominicana y transferencia de tecnología
Authors: Contreras Pérez José Bernardino
Published: May 2019

Este texto de José Contreras Pérez analiza la aparición de la química en la Republica Dominicana. Las primeras industrias químicas del país a parte de la azucarera, son las de hoy Sociedad Industrial Dominicana, fundada en el 1938, y la Fábrica Dominicana de Cemento, fundada en 1946.
Evolución tecnológica de las telecomunicaciones en la República Dominicana
Authors: García Ulises
Published: May 2019

Este texto de Ulises García muestra la evolución tecnológica de las telecomunicaciones en la República Dominicana. La primera línea telefónica enlazó a Santo Domingo con la comunidad de Guerra, extendiendose de inmediato a San José de los Llanos, Quisqueya y San Pedro de Macorís, con un recorrido total de 110 kilómetros. Por tanto estos y otros adelantos puestos al servicio de la industria del comercio y de la ciudadanía en general son las cosas que nos hacen asegurar que en materia de telecomunicaciones somos vanguardia en Latinoamérica.
Alteraciones sexuales y cáncer, estudio prospectivo en el IOHP en pacientes sexualmente activos desde abril a junio 1997
Authors: Duarte Julio
Published: May 2019

El objetivo del presente trabajo fue analizar las alteraciones sexuales y cáncer en pacientes oncológicos que fueron referidos o diagnosticados en el Instituto Oncológico Dr. Heriberto Pieter (IOHP) y determinar la asociación con alteraciones sexuales En total se estudiaron 61 pacientes con neoplasias malignas, 22 masculinos y 39 femeninas; 43 pacientes para un 71% es de la región sur. El grupo de edad más afectado por cáncer eran los comprendidos entre 30-44 años; 6 pacientes no tenían actividad sexual antes del diagnóstico, 3 de ellas no tenían paraje sexual; después del diagnóstico 22 pacientes no tenían actividad sexual. Dentro de los pacientes que no tenían actividad sexual después del diagnóstico fueron 12 femeninas y 10 masculinos Las neoplasias localizadas en la cavidad oral y mama, fueron las que más frecuentes se asociaron a falta de actividad sexual. Los esquemas de tratamientos al igual que el diagnóstico fueron variados.
Las ciberidentidades : efecto de la globalización tecnológica
Authors: Moya Nereyda , Brito Juana María
Published: May 2019

El trabajo realiza una reflexión en torno a la Identidad Cultural ubicando los diferentes enfoques y contextos de su delimitación conceptual dentro del pensamiento filosófico latinoamericano desde el siglo XIX hasta el contexto actual en que se producen fecundos debates sobre el tema, que revelan las controversias perennes que el tema ha generado La concepción de Identidad Cultural se considera como proceso, en su dinámica genera un reconstituirse, que le permiten mantener y conservar las constantes de sus ingredientes y elementos originarios e incorporar nuevos elementos que se unen en las complejísimas transmutaciones de cultura Se destacan los diferentes contextos por los que ha transitado la visión de la Identidad Cultural y se realiza la crítica a la concepción de las Ciberidentidades "que aluden a comunidades cotidianas imaginarias o virtuales" y que tiene la finalidad de, en el nuevo entorno Postmoderno, suplantar el concepto de Identidad Cultural.
Tendencias postmodernistas en el pensamiento organizacional
Authors: Rodríguez Ortiz Jenny K.
Published: May 2019

Se analiza el discurso de la postmodernidad a partir de tres ejes fundamentales y cómo se ven reflejadas esta ideas de los escenarios organizacionales, sobre todo en la naturaleza de la realidad y de la producción del conocimiento. Luego se estudian cuatro enfoques de la teoría organizacional postmodernita : la teorización feminista post-estructuralista, los análisis post-coloniales, la teoría actor-red y los enfoques narrativos del conocimiento.
UTILIZAÇÃO DO MASP (MÉTODO DE ANÁLISE E SOLUÇÃO DE PROBLEMAS) EM UMA GRANJA DE SUÍNOS
Authors: Lorenzon Elias , Diedrich Hélio
Published: May 2019

As organizações necessitam de constantes melhorias em seus processos, buscando a diminuição das perdas, o aumento de produtividade e, consequentemente, o lucro. Assim sendo, uma Unidade Produtora de Leitões (UPL), em busca destas ações de aprimoramento em seu sistema produtivo, solicitou a realização deste estudo. O objetivo geral é propor possíveis soluções a um dos problemas que acabam reduzindo a produtividade da empresa, mais especificamente, o problema de esmagamento de leitões no setor de maternidade da UPL Neuton Lorenzon. Quanto aos objetivos específicos, pretende-se: identificar as causas do problema de esmagamento seguido de morte de leitões na UPL; realizar a coleta de dados através de anotações diárias; analisar os dados coletados com o auxílio das ferramentas gerenciais e; apresentar sugestões de melhoria, buscando minimizar o impacto do problema de esmagamento de leitões na UPL. Para atender estes objetivos foi utilizado o MASP (Método de Análise e Solução de Problemas), além de outras técnicas de auxílio como Gráfico de Pareto, Diagrama de Causa e Efeito, PDCA, entre outras ferramentas da qualidade. A coleta de dados foi realizada no local onde ocorre o problema, com o objetivo de observar os detalhes relacionados aos fatores que influenciam o esmagamento de leitões na UPL, contemplando um período de seis meses. No final do artigo é exposto um quadro com propostas de melhorias que podem ser implantadas de acordo com as necessidades e disponibilidade financeira da empresa. O método utilizado neste trabalho se caracteriza como sendo uma pesquisa aplicada, classificada como estudo de caso com abordagem quantitativa e exploratória.
A EVOLUÇÃO DO ATENDIMENTO: UMA ANÁLISE NA EXPERIÊNCIA DE CONSUMO DOS CLIENTES DO VAREJO FÍSICO DA CONSTRUÇÃO CIVIL
Authors: Klamt Henrique Adolfo
Published: May 2019

O artigo apresenta um estudo sobre as experiências de consumo no varejo da construção civil. Para isso, foi realizado uma pesquisa quantitativa na cidade de Teutônia e imediações, com uma amostra de 185 respondentes. Os resultados mostraram que o público, na sua maciça maioria, prefere comprar seus materiais de construção por meio de vendas assessoradas. Contudo, a análise mostrou também que os mesmos entrevistados valorizam os benefícios obtidos de uma compra por autosserviço. Como sugestão para as implicações gerenciais, é sugerido um modelo híbrido entre autoatendimento e venda consultiva, otimizando assim os benefícios de cada um.
Central and Peripheral Administration of Fibroblast Growth Factor 1 Improves Pancreatic Islet Insulin Secretion in Diabetic Mouse Models
Authors: Tennant Katherine G. , Lindsley Sarah R. , Kirigiti Melissa A. , True Cadence , Kievit Paul
Published: May 2019

Fibroblast growth factor 1 (FGF1) has been shown to reverse hyperglycemia in diabetic rodent models through peripheral and central administration routes. Previous studies demonstrated that insulin is required for central and peripheral FGF1 metabolic improvements; however, it is unknown if FGF1 targets insulin secretion at the islet level. Here we show for the first time that FGF1 increases islet insulin secretion in diabetic mouse models. FGF1 was administered via a single intracerebroventricular or multiple subcutaneous injections to leptin receptor-deficient (db/db), diet-induced obese, and control mice; pancreatic islets were isolated 7 days later for analysis of insulin secretion. Central and peripheral FGF1 significantly lowered blood glucose in vivo and increased ex vivo islet insulin secretion from diabetic, but not control, mice. FGF1 injections to the cisterna magna mimicked intracerebroventricular outcomes, pointing to a novel therapeutic potential. Central effects of FGF1 appeared dependent on reductions in food intake, whereas peripheral FGF1 had acute actions on islet function prior to significant changes in food intake or blood glucose. Additionally, peripheral, but not central, FGF1 increased islet β-cell density, suggesting that peripheral FGF1 may induce long-term changes in islet structure and function that are not present with central treatment.
POST-MILLENIAL STUDENTS’ ATTITUDES TOWARDS THE ONLINE SEARCH ENGINE IN EFL LEARNING
Authors: Pertama Sari Angela Bayu , Rejeki Sri
Published: May 2019

This research attempted to depict teachers' perspectives towards the post-millennial students' attitudes on using the online search engine in EFL learning. The research employed descriptive-interpretative qualitative research. 12 English teachers of the non-English major students were purposefully selected to be the subject of the research. The findings of the research pointed out that students' who were categorized as post-millennial generation used online search engine a lot in EFL learning. The findings showed that some negative attitudes occurred in EFL learning regarding the usage of the online search engine. The two most prominent ones were the act of plagiarism and being lazy due to the access to instant information. Despite it all, the results showed that the students’ positive attitude towards online search engine was more significant than the negative ones. Furthermore, the other research findings also illustrated that the EFL learning activities that were interfered by the online search engine at most is writing. Then, Google is the most used online search engine by the EFL post-millennial students.
UNDERSTANDING THE MEANING OF LANGUAGE BIAS IN TWITTER STATUS
Authors: Suhadi Agung
Published: May 2019

Through social networking sites, many users or writers convey the strict message and statement in the platform of their twitter for whom those are addressed. This study was to analyze the use of language bias in worldwide twitter status; how its form and what is the underlying motive behind the words used. The researcher only focused on the “Trending Topic” from worldwide twitter status during February 2018 by taking up 25 twitter status as samples. The result of analysis obtained that there were six categories of language bias which are used in twitter statuses such as age, sex (gender), race, social class, and traits. Semiotically, all above upon deliver were visible strictly words, but all of the words subtle conveyed some important values for readers in terms of five categories above like to be an independent person, respect and not underestimate others. In short, by understanding the clues words of language bias in social media, readers can understand easily for whom the message or statement are addressed and not easy to give a negative response as users of social media.
Derechos humanos y exportación legal de armas: Estados Unidos y Alemania frente a la crisis mexicana
Authors: Pérez Ricart Carlos A. , Lindsay-Poland John
Published: May 2019

Se examina la forma en que Alemania y Estados Unidos han adaptado sus leyes y políticas de control de exportación de armas cortas y ligeras (SALW, por sus siglas en inglés) frente a México, país que pasa actualmente por una severa crisis de derechos humanos. A partir de entrevistas efectuadas en Alemania y Estados Unidos, así como de reportes oficiales y bibliografía secundaria, el artículo identifica que mientras Alemania ha retraído sus exportaciones de SALW a México, las empresas estadounidenses continúan exportando prácticamente sin restricciones. El texto presenta contribuciones a dos debates académicos: el estudio de la participación de actores no estatales en el proceso de toma de decisiones en política de exportación de armas y el examen de cómo las normas internacionales afectan el comportamiento y las prácticas de los Estados nacionales, un tema clave en la agenda constructivista de las Relaciones Internacionales.
apropiación de las Damas. El matrimonio, la maternidad y la familia, engranajes básicos del régimen heterosexual
Authors: Ochoa Almanza Juana
Published: May 2019

En este artículo, la autora analiza el discurso heterosexual presente en los periódicos El Tiempo y El Espectador, entre 1920 y 1925, periodo clave en la emergencia del proceso de modernización en Colombia. La información recopilada fue abordada mediante el análisis crítico del discurso, a la luz del feminismo materialista francés, el feminismo poscolonial, el lesbofeminismo y la teórica crítica descolonial. Los hallazgos proponen que la prensa escrita fue un medio central para legitimar el régimen heterosexual, al promover la apropiación material y subjetiva de las mujeres por parte de los hombres.
Cuerpo viviente y cuerpo vivido. Algunas reflexiones desde la antropología filosófica
Authors: Y José M. Giménez Amaya José A. Lombo
Published: May 2019

Frente el dualismo y al monismo, una visión realista del hombre es necesariamente unitaria, pero no simple o indiferenciada. Ello implica una consideración del cuerpo como integrante de la subjetividad, pero al mismo tiempo la trascendencia del yo respecto a la corporalidad. El cuerpo viviente constituye una unidad internamente articulada en su estructura y dinamismo, y se encuentra abierto a otras realidades corpóreas con las que forma una cierta unidad viviente.
Conciencia, leyes y causas
Authors: Murillo José Ignacio
Published: May 2019

La conciencia inexplicada lleva a cabo una acertada crítica de los intentos por naturalizar la conciencia y una sugerente propuesta acerca del lugar que ocupa en la naturaleza. Pero estas tesis se encuentran con las dificultades que derivan de identificar la filosofía de la naturaleza con la ciencia moderna y esta con el descubrimiento de las leyes que la rigen. La noción de ley toma tal protagonismo en este libro que condiciona las nociones de naturaleza y de conciencia y oscurece las nociones de causa, en particular la de causa final, y dificulta la comprensión de los seres vivos y de su afinidad con la conciencia. Estas dificultades se notan de un modo particular en el modo de concebir el hábito.
Una explicación de la conciencia inexplicada
Authors: Polaino-Lorente Aquilino
Published: May 2019

En esta breve nota el autor apela a la experiencia humana, desde la perspectiva de la fenomenología de la conciencia. Un punto necesario, en su opinión, contra el reduccionismo materialista y cientificista. Se discuten también otras consideraciones, en el ámbito de la investigación científica, en lo relativo al conocido experimento de Libet, que amplían el cuestionamiento de sus resultados y, sobre todo, de algunas de sus interpretaciones más radicales.
Objetividad y subjetividad, forma y contenido en la narración filosófica de Fernando Inciarte
Authors: Flamanrique Lourdes
Published: May 2019

¿Tiene sentido hablar de objetividad en una narración filosófica? ¿Cabe pensar que precisamente este género literario sirve para alcanzar la inmediatez y verdad propias de la metafisica? En este trabajo se trata de marcar algunos de los jalones que delimitan el intrincado bucle de verdad, objetividad y subjetividad que constituye el hilo argumental del libro Cultura y verdad de Fernando Inciarte, publicado póstumamente. Tomando pie de las claves de lectura dadas por el propio autor, se examina qué tipo de verdad está en juego y si la forma y el estilo narrativo son idóneos para presentarla.
Narciso en la encrucijada. La autorreferencialidad como destino
Authors: Martínez Carrasco Alejandro
Published: May 2019

El mito de Narciso puede servir como sugerente metáfora para plantear algunas cuestiones antropológicas y gnoseológicas fundamentales, sobre todo en lo que hace referencia a la peculiar relación del hombre consigo mismo. Tomando pie de esta historia se plantea aquí la tesis de que la autorreferencialidad es el destino inevitable del ser humano. Pero hay diversos modos de entender la autorreferencialidad, no hay que entenderla necesariamente como una estructura que aboque a un solipsismo inmanente insuperable. Tomando a Inciarte como trasfondo de estas reflexiones, se analiza esta problemática en los casos de Eugen Fink y Michel Foucault para mostrar esta diversidad de vías interpretativas.