bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization of Boron Nitride Sphere Loading in Epoxy: Enhanced Thermal Conductivity and Excellent Electrical Insulation
Authors: Zhang Hua , Huang Rongjin , Li Yong , Li Hongbo , Wu Zhixiong , Huang Jianjun , Yu Bin , Gao Xiang , Li Jiangang , Li Laifeng
Published: August 2019

Thermally conductive but electrically insulating materials are highly desirable for thermal management applications in electrical encapsulation and future energy fields, for instance, superconducting magnet insulation in nuclear fusion systems. However, the traditional approaches usually suffer from inefficient and anisotropic enhancement of thermal conductivity or deterioration of electrical insulating property. In this study, using boron nitride sphere (BNS) agglomerated by boron nitride (BN) sheets as fillers, we fabricate a series of epoxy/BNS composites by a new approach, namely gravity-mix, and realize the controllable BNS loading fractions in the wide range of 5–40 wt%. The composites exhibited thermal conductivity of about 765% and enhancement at BNS loading of 40 wt%. The thermal conductivity up to 0.84 W·m−1·K−1 at 77 K and 1.66 W·m−1·K−1 at 298 K was observed in preservation of a higher dielectric constant and a lower dielectric loss, as expected, because boron nitride is a naturally dielectric material. It is worth noting that the thermal property was almost isotropous on account of the spherical structure of BNS in epoxy. Meanwhile, the reduction of the coefficient of thermal expansion (CTE) was largely reduced, by up to 42.5% at a temperature range of 77–298 K.
Structure–Property Relationships in Polyethylene-Based Composites Filled with Biochar Derived from Waste Coffee Grounds
Authors: Arrigo Rossella , Jagdale Pravin , Bartoli Mattia , Tagliaferro Alberto , Malucelli Giulio
Published: August 2019

In this work, biochar (BC) derived from spent coffee grounds has been incorporated into high density polyethylene (PE) through melt mixing. The influence of the filler content on the rheological and thermal behavior of the obtained composites was assessed. In particular, a rheological study was performed systematically using different flow fields, including linear and nonlinear dynamic shear flow, revealing that the dynamics of PE macromolecules in the composite materials are slowed down because of the confinement of the polymer chains onto the filler surface and/or within the BC porous structure. Oscillatory amplitude sweep tests indicated that composites show weak strain overshoot behavior in the nonlinear regime: This finding clearly proves the formation of weak structural complexes, which cause a retardation of the macromolecular chains dynamics. Furthermore, the embedded BC particles were able to improve the thermo-oxidative stability of PE-based composites, remarkably increasing the PE decomposition temperatures.
In Situ Modification of Polyisoprene by Organo-Nanoclay during Emulsion Polymerization for Reinforcing Natural Rubber Thin Films
Authors: Chouytan Jadsadaporn , Kalkornsurapranee Ekwipoo , Fellows Christopher , Kaewsakul Wisut
Published: August 2019

Nanoclay-modified polyisoprene latexes were prepared and then used as a reinforcing component in natural rubber (NR) thin films. Starve-fed emulsion (SFE) polymerization gives a higher conversion than the batch emulsion (BE), while the gel and coagulation contents from both systems are comparable. This is attributed to the SFE that provides a smaller average polymer particle size which in turn results in a greater polymerization locus, promoting the reaction rate. The addition of organo-nanoclay during synthesizing polyisoprene significantly lessens the polymerization efficiency because the nanoclay has a potential to suppress nucleation process of the reaction. It also intervenes the stabilizing efficiency of the surfactant—SDS or sodium dodecyl sulfate, giving enlarged average sizes of the polymer particles suspended in the latexes. TEM images show that nanoclay particles are attached on and/or inserted in the polymer particles. XRD and thermal (differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA)) analyses were employed to assess the d-spacing of nanoclay structure in NR nanocomposite films, respectively. Based on the overall results, 5 wt% of nanoclay relative to the monomer content utilized to alter the polyisoprene during emulsion polymerization is an optimum amount since the silicate plates of nanoclay in the composite exhibit the largest d-spacing which maximizes the extent of immobilized polymer constituent, giving the highest mechanical properties to the films. The excessive amounts of nanoclay used, i.e., 7 and 10 wt% relative to the monomer content, reduce the reinforcing power because of the re-agglomeration effect.
Preparation of Biodegradable Polyethylene Glycol Dimethacrylate Hydrogels via Thiol-ene Chemistry
Authors: Burke Gavin , Cao Zhi , Devine Declan M. , Major Ian
Published: August 2019

Through the control of the molecular weight, water content and monomer concentration, polyethylene glycol dimethacrylate (PEGDMA) based hydrogels have been adapted for numerous applications, including as structural scaffolds, drug delivery vehicles and cell carriers. However, due to the low biodegradability rates, the use of PEGDMA in tissue engineering has been limited. Thiol-based monomers have been shown to improve the degradation rates of several PEG-based hydrogels, though their impact on several material properties has not been as well defined. In this work, several mercaptopropianoates, as well as mercaptoacetates, were mixed with PEGDMA and copolymerized. Following an initial polymerization check, it was determined that mercaptoacetate-based thiol monomers did not polymerize in the presence of PEGDMA, whereas mercaptopropionates were more successful. The wettability, and the compressive and tensile strength, in addition to the thermal properties, were determined for successfully copolymerized samples via a combination of differential scanning calorimetry, dynamic mechanical analysis, unconfined compression, and goniometry. Further study determined that dipentaerythritol hexa(3–mercaptopropionate) (DiPETMP) successfully enhanced the biodegradability of PEGDMA.
Fabrication and Enhanced Thermal Conductivity of Boron Nitride and Polyarylene Ether Nitrile Hybrids
Authors: Tu Ling , Xiao Qian , Wei Renbo , Liu Xiaobo
Published: August 2019

Excellent thermal resistance and thermal conductivity are preconditions of materials to be used at elevated temperatures. Herein, boron nitride and polyarylene ether nitrile hybrids (PEN-g-BN) with excellent thermal resistance and thermal conductivity are fabricated. Phthalonitrile-modified BN (BN-CN) is prepared by reacting hydroxylated BN with isophorone diisocyanate (IPDI) and 3-aminophxylphthalonitrile (3-APN), and then characterized by FT-IR, UV-Vis, and X-ray photoelectron spectroscopy (XPS). The obtained BN-CN is introduced to a phthalonitrile end-capped PEN (PEN-Ph) matrix to prepare BN-CN/PEN composites. After curing at 340 °C for 4 h, PEN-g-BN hybrids are fabricated by a self-crosslinking reaction of cyano groups (-CN) from BN-CN and PEN-Ph. The fabricated PEN-g-BN hybrids are confirmed through FT-IR, UV-Vis, SEM and gel content measurements. The PEN-g-BN hybrids demonstrate excellent thermal resistance with their glass transition temperature (Tg) and decomposition temperatures (Td) being higher than 235 °C and 530 °C, respectively. Additionally, the thermal conductivity of the prepared PEN-g-BN hybrids is up to 0.74 W/(m·k), intensifying competitiveness of PEN-g-BN hybrids for applications at elevated temperatures.
Lead-Induced Changes in Fluorescence and Spectral Characteristics of Pea Leaves
Authors: Kycko Marlena , Romanowska Elżbieta , Zagajewski Bogdan
Published: August 2019

Chlorophyll fluorescence parameters can provide useful indications of photosynthetic performance in vivo. Coupling appropriate fluorescence measurements with other noninvasive techniques, such as absorption spectroscopy or gas exchange, can provide insights into the limitations to photosynthesis under given conditions. Chlorophyll content is one of the dominant factors influencing the conditions of a vegetation growing season, and can be tested using both fluorescence and remote sensing methods. Hyperspectral remote sensing and recording the narrow range of the spectrum can be used to accurately analyze the parameters and properties of plants. The aim of this study was to analyze the influence of lead ions (Pb, 5 mM Pb(NO3)2) on the growth of pea plants using spectral properties. Hyperspectral remote sensing and chlorophyll fluorescence measurements were used to assess the physiological state of plants seedlings treated by lead ions during the experiment. The plants were growing in hydroponic cultures supplemented with Pb ions under various conditions (control, complete Knop + phosphorus (+P); complete Knop + phosphorus (+P) + Pb; Knop (-P) + Pb, distilled water + Pb) affecting lead uptake via the root system. Spectrometric measurements allowed us to calculate the remote sensing indices of vegetation, which were compared with chlorophyll and carotenoids content and fluorescence parameters. The lead contents in the leaves, roots, and stems were also analyzed. Spectral characteristics and vegetation properties were analyzed using statistical tests. We conclude that: (1) pea seedlings grown in complete Knop (with P) and in the presence of Pb ions were spectrally similar to the control plants because lead was not transported to the shoots of plants; (2) lead most influenced plants that were grown in water, according to the highest lead content in the leaves; and (3) the effects of lead on plant growth were confirmed by remote sensing indices, whereas fluorescence parameters identified physiological changes induced by Pb ions in the plants.
ℓp-ICP Coastline Inflection Method for Geolocation Error Estimation in FY-3 MWRI Data
Authors: Zhao Xinghui , Chen Na , Li Weifu , Peng Jiangtao , Shen Lijun
Published: August 2019

Known as input in the Numerical Weather Prediction (NWP) models, Microwave Radiation Imager (MWRI) data have been widely distributed to the user community. With the development of remote sensing technology, improving the geolocation accuracy of MWRI data are required and the first step is to estimate the geolocation error accurately. However, the traditional method, such as the coastline inflection method (CIM), usually has the disadvantages of low accuracy and poor anti-noise ability. To overcome these limitations, this paper proposes a novel ℓ p iterative closest point coastline inflection method ( ℓ p -ICP CIM). It assumes that the field of views (FOVs) across the coastline can degenerate into a step function and employs an ℓ p ( 0 ≤ p < 1 ) sparse regularization optimization model to solve the coastline point. After estimating the coastline points, the ICP algorithm is employed to estimate the corresponding relationship between the estimated coastline points and the real coastline. Finally, the geolocation error can be defined as the distance between the estimated coastline point and the corresponding point on the true coastline. Experimental results on simulated and real data sets show the effectiveness of our method over CIM. The accuracy of the geolocation error estimated by ℓ p -ICP CIM is up to 0.1 pixel, in more than 90 % of cases. We also show that the distribution of brightness temperature near the coastline is more consistent with the real coastline and the average geolocation error is reduced by 63 % after geolocation error correction.
Underwater Acoustic Target Recognition: A Combination of Multi-Dimensional Fusion Features and Modified Deep Neural Network
Authors: Wang Xingmei , Liu Anhua , Zhang Yu , Xue Fuzhao
Published: August 2019

A method with a combination of multi-dimensional fusion features and a modified deep neural network (MFF-MDNN) is proposed to recognize underwater acoustic targets in this paper. Specifically, due to the complex and changeable underwater environment, it is difficult to describe underwater acoustic signals with a single feature. The Gammatone frequency cepstral coefficient (GFCC) and modified empirical mode decomposition (MEMD) are developed to extract multi-dimensional features in this paper. Moreover, to ensure the same time dimension, a dimension reduction method is proposed to obtain multi-dimensional fusion features in the original underwater acoustic signals. Then, to reduce redundant features and further improve recognition accuracy, the Gaussian mixture model (GMM) is used to modify the structure of a deep neural network (DNN). Finally, the proposed underwater acoustic target recognition method can obtain an accuracy of 94.3% under a maximum of 800 iterations when the dataset has underwater background noise with weak targets. Compared with other methods, the recognition results demonstrate that the proposed method has higher accuracy and strong adaptability.
Model Free Localization with Deep Neural Architectures by Means of an Underwater WSN
Authors: Parras Juan , Zazo Santiago , Pérez-Álvarez Iván A. , Sanz González José Luis
Published: August 2019

In recent years, there has been a significant effort towards developing localization systems in the underwater medium, with current methods relying on anchor nodes, explicitly modeling the underwater channel or cooperation from the target. Lately, there has also been some work on using the approximation capabilities of Deep Neural Networks in order to address this problem. In this work, we study how the localization precision of using Deep Neural Networks is affected by the variability of the channel, the noise level at the receiver, the number of neurons of the neural network and the utilization of the power or the covariance of the received acoustic signals. Our study shows that using deep neural networks is a valid approach when the channel variability is low, which opens the door to further research in such localization methods for the underwater environment.
Spatiotemporal Dynamics of Water Yield Service and Its Response to Urbanisation in the Beiyun River Basin, Beijing
Authors: Xu Jingwei , Liu Shiliang , Zhao Shuang , Wu Xue , Hou Xiaoyun , An Yi , Shen Zhenyao
Published: August 2019

Water-related ecosystem services are vitally important for growing mega-cities. However, accelerating urbanisation has brought many associated issues, such as rapid population growth, extensive land occupation and landscape pattern changes, which affect both the functions and services of regional ecosystems. To achieve sustainable urban ecological development, it is necessary to determine the impacts of urbanisation on water yield. In this study, the water yield ecosystem service of the Beiyun River Basin in Beijing was simulated by the Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) model and the Geographical Detector method (Geo-detector) was applied to obtain the contributions and temporal regularity of urbanisation impacts on water yield. The results indicated the following: (1) the water yield of the Beiyun River Basin increased from 9.52 × 108 m3 in 2000 to 12.84 × 108 m3 in 2010, with a growth rate of 34.9%; (2) the urbanisation level of the Beiyun River Basin increased from 2000 to 2010, and the selected five landscape indexes varied greatly with the continuously increasing patch density (PD), splitting index (SPLIT) and Shannon’s diversity index (SHDI); (3) during this decade, patch richness density (PRD), SHDI, aggregation index (AI), portion of construction land (CL) and average annual precipitation (AP) were the influencing factors that continuously contributed more than 30% of the spatial variability of water yield in the Beiyun River Basin; and (4) the explanatory power of the interaction between any two driving forces was greater than any single factor. Our results could provide scientific references and constructive advice for city water resource operation from a landscape perspective.
Fuel Consumption Model of the Climbing Phase of Departure Aircraft Based on Flight Data Analysis
Authors: Zhang Ming , Huang Qianwen , Liu Sihan , Zhang Yu
Published: August 2019

Accurate estimation of the fuel consumed during aircraft operation is key for determining the fuel load, reducing the airline operating cost, and mitigating environmental impacts. Aerodynamic parameters in current fuel consumption models are obtained from a static diagram extracted from the outcomes of wind tunnel experiments. Given that these experiments are performed in a lab setting, the parameters cannot be used to estimate additional fuel consumption caused by aircraft performance degradation. In addition, wind tunnel experiment results rarely involve the influence of crosswind on fuel consumption; thus, the results could be inaccurate when compared with field data. This study focuses on the departure climbing phase of aircraft operation and proposes a new fuel consumption model. In this model, the relationships between aerodynamic parameters are extracted by fitting quick access recorder (QAR) actual flight data, and the crosswind effect is also considered. Taking QAR data from two airports in China, the accuracy of the proposed model and its transferability are demonstrated. Applying the proposed model, the fuel saving of a continuous climb operation (CCO) compared with the traditional climb operation is further quantified. Finally, how aircraft mass, climbing angle, and different aircraft models could affect the fuel consumption of the climbing phase of aircraft operation is investigated. The proposed fuel consumption model fills gaps in the existing literature, and the method can be used for developing specific fuel consumption models for more aircraft types at other airports.
Low-Carbon Quick Wins: Integrating Short-Term Sustainable Transport Options in Climate Policy in Low-Income Countries
Authors: Bakker Stefan , Haq Gary , Peet Karl , Gota Sudhir , Medimorec Nikola , Yiu Alice , Jennings Gail , Rogers John
Published: August 2019

In low income countries (LICs) in Africa and Asia per capita transport greenhouse gas emissions are relatively low but are expected to grow. Therefore, a substantial reduction in projected increases is required to bring emissions in line with long-term global climate objectives. Literature on how LICs are integrating climate change mitigation and sustainable transport strategies is limited. Key drivers of transport policy include improving accessibility, congestion, air quality, energy security, with reducing greenhouse gas emissions being of lower priority. This paper assesses the current status, feasibility and potential of selected low-carbon transport measures with high sustainable development benefits that can be implemented in the short to medium term, so- called ‘quick wins’. It examines to what extent ten such quick wins are integrated in climate change strategies in nine low- and middle-income countries in Africa and South Asia. The research method comprises expert interviews, an online questionnaire survey of experts and policymakers in the focus countries, and a review of literature and government plans. Results indicate that sustainable urban transport policies and measures are considered high priority, with vehicle-related measures such as fuel quality and fuel economy standards and electric two- and three-wheelers being of key relevance. In existing national climate change strategies, these quick wins are integrated to a certain extent; however, with better coordination between transport and energy and environment agencies such strategies can be improved. A general conclusion of this paper is that for LICs, quick wins can connect a ‘top-down’ climate perspective with a ‘bottom-up’ transport sector perspective. A knowledge gap exists as to the mitigation potential and sustainable development benefits of these quick wins in the local context of LICs.
How Does Agroecology Contribute to the Transitions towards Social-Ecological Sustainability?
Authors: Oteros-Rozas Elisa , Ravera Federica , García-Llorente Marina
Published: August 2019

This Special Issue of Sustainability aims at compiling original theoretical, methodological, and empirical research exploring how agroecology approaches can promote the transition towards sustainability, particularly of agri-food social-ecological systems, taking into account the complex relationships established between ecological functions and ecosystem services, human wellbeing, innovative socio-technical innovations, and governance models as well as public policies. In this editorial, we carry out an overview of the 17 contributions that shape this number, around five main themes: Agroecological practices that enhance ecosystem services, the potential of agroecology to promote social learning and innovation, gender and feminist perspectives in agroecology, the political articulation of agroecology, and public policies and the institutionalization of agroecology. Finally, we reflect about suggested guidelines for agroecology research that truly aims at supporting the transition towards strong social-ecological sustainability, we then deepen on the main gaps revealed by the research works presented. Finally, we conclude with the insights provided by agroecology within the transition towards social-ecological sustainability.
Necessary and Sufficient Optimality Conditions for Vector Equilibrium Problems on Hadamard Manifolds
Authors: Ruiz-Garzón Gabriel , Osuna-Gómez Rafaela , Ruiz-Zapatero Jaime
Published: August 2019

The aim of this paper is to show the existence and attainability of Karush–Kuhn–Tucker optimality conditions for weakly efficient Pareto points for vector equilibrium problems with the addition of constraints in the novel context of Hadamard manifolds, as opposed to the classical examples of Banach, normed or Hausdorff spaces. More specifically, classical necessary and sufficient conditions for weakly efficient Pareto points to the constrained vector optimization problem are presented. The results described in this article generalize results obtained by Gong (2008) and Wei and Gong (2010) and Feng and Qiu (2014) from Hausdorff topological vector spaces, real normed spaces, and real Banach spaces to Hadamard manifolds, respectively. This is done using a notion of Riemannian symmetric spaces of a noncompact type as special Hadarmard manifolds.
Impact of the Nuclear Equation of State on the Stability of Hybrid Neutron Stars
Authors: Cierniak Mateusz , Fischer Tobias , Bastian Niels-Uwe , Klähn Thomas , Salinas Marc
Published: August 2019

We construct a set of equations of state (EoS) of dense and hot matter with a 1st order phase transition from a hadronic system to a deconfined quark matter state. In this two-phase approach, hadrons are described using the relativistic mean field theory with different parametrisations and the deconfined quark phase is modeled using vBag, a bag–type model extended to include vector interactions as well as a simultaneous onset of chiral symmetry restoration and deconfinement. This feature results in a non–trivial connection between the hadron and quark EoS, modifying the quark phase beyond its onset density. We find that this unique property has an impact on the predicted hybrid (quark core) neutron star mass–radius relations.
Antibiotic exposure and ‘response failure’ for subsequent respiratory tract infections: an observational cohort study of UK preschool children in primary care
Authors: van Hecke Oliver , Fuller Alice , Bankhead Clare , Jenkins-Jones Sara , Francis Nick , Moore Michael , Butler Chris , Wang Kay
Published: August 2019

Background

Childhood antibiotic exposure has important clinically relevant implications. These include disruption to the microbiome, antibiotic resistance, and clinical workload manifesting as treatment ‘failure’.

Aim

To examine the relationship between the number of antibiotic courses prescribed to preschool children for acute respiratory tract infections (RTI), in the preceding year, and subsequent RTIs that failed to respond to antibiotic treatment (‘response failures’).

Design and setting

A cohort study using UK primary care data from the Clinical Practice Research Datalink, 2009 to 2016.

Method

Children aged 12 to 60 months (1 to 5 years) who were prescribed an antibiotic for an acute RTI (upper and lower RTI or otitis media) were included. One random index antibiotic course for RTI per child was selected. Exposure was the number of antibiotic prescriptions for acute RTI up to 12 months before the index antibiotic prescription. The outcome was ‘response failure’ up to 14 days after index antibiotic prescription, defined as: subsequent antibiotic prescription; referral; hospital admission; death; or emergency department attendance within 3 days. The authors used logistic regression models to estimate the odds between antibiotic exposure and response failure.

Results

Out of 114 329 children who were prescribed an antibiotic course for acute RTI, children who received ≥2 antibiotic courses for acute RTIs in the preceding year had greater odds of response failure; one antibiotic course: adjusted odds ratio (OR) 1.03 (95% confidence interval [CI] = 0.88 to 1.21), P = 0.67, n = 230 children; ≥2 antibiotic courses: adjusted OR 1.32 (CI = 1.04 to 1.66), P = 0.02, n = 97.

Conclusion

Childhood antibiotic exposure for acute RTI may be a good predictor for subsequent response failure (but not necessarily because of antibiotic treatment failure). Further research is needed to improve understanding of the mechanisms underlying response failure.
Patient preferences for management of high blood pressure in the UK: a discrete choice experiment
Authors: Fletcher Benjamin , Hinton Lisa , McManus Richard , Rivero-Arias Oliver
Published: August 2019

Background

With a variety of potentially effective hypertension management options, it is important to determine how patients value different models of care, and the relative importance of factors in their decision-making process.

Aim

To explore patient preferences for the management of hypertension in the UK.

Design and setting

Online survey of patients who have hypertension in the UK including an unlabelled discrete choice experiment (DCE).

Method

A DCE was developed to assess patient preferences for the management of hypertension based on four attributes: model of care, frequency of blood pressure (BP) measurement, reduction in 5-year cardiovascular risk, and costs to the NHS. A mixed logit model was used to estimate preferences, willingness-to-pay was modelled, and a scenario analysis was conducted to evaluate the impact of changes in attribute levels on the uptake of different models of care.

Results

One hundred and sixty-seven participants completed the DCE (aged 61.4 years, 45.0% female, 82.0% >5 years since diagnosis). All four attributes were significant in choice (P<0.05). Reduction in 5-year cardiovascular risk was the main driver of patient preference as evidenced in the scenario and willingness-to-pay analyses. GP management was significantly preferred over self-management. Patients preferred scenarios with more frequent BP measurement, and lower costs to the NHS.

Conclusion

Participants had similar preferences for GP management, pharmacist management, and telehealth, but a negative preference for self-management. When introducing new models of care for hypertension to patients, discussion of the potential benefits in terms of risk reduction should be prioritised to maximise uptake.
Interculturalidad en salud de acuerdo a prácticas de medicinas indígenas y complementarias, y su introducción en el sistema de Salud Público en Chile: Hallazgos de un estudio etnográfico
Authors: Obach Alexandra , Bernales Margarita , Cabieses Báltica
Published: August 2019

Objetivos: Indagar la manera en que se está construyendo la interculturalidad en los ámbitos de la salud en Chile en la actualidad, explorando tanto en los tránsitos que las personas realizan por diferentes prácticas médicas así como en la incorporación que instituciones públicas de salud en Chile hacen de tradiciones terapéuticas no biomédicas. Materiales y métodos: Estudio cualitativo etnográfico multi-situado, que indagó desde dicho paradigma la introducción de medicinas indígenas, y alternativas y complementarias (MAC) en establecimientos públicos de salud de la ciudad de Santiago. Se utilizaron las técnicas de entrevistas semi-estructuradas (n=55) y de observación participante. Resultados: Se observan cuatro ejes temáticos centrales referidos por los participantes: (i) la biomedicina se percibe como una fuente de riesgo lo que incentiva el uso de otras terapias; (ii) las mujeres reportan preocupación sobre la sobremedicalización del sistema de salud convencional, y transitan con frecuencia entre distintas terapias; (iii) existe una preocupación especial por las debilidades de la relación médico-paciente que se percibe en el sistema biomédico; (iv) existe hoy un interés por parte del sistema público de salud por incorporar terapias no alópatas. Conclusiones: A partir de los hallazgos de este estudio se reconoce la creciente búsqueda por otras terapias o formas de sanar en Chile (proceso definido en este estudio como una “sociedad del tanteo”). Dicho fenómeno requiere de mayor comprensión y consideración institucional por sus posibles efectos en salud pública. Estos hallazgos podrían informar nuevas formas de definir e implementar la salud intercultural en Chile.
Genealogija prostora v bibličnih besedilih: Stvarjenje
Authors: Debevec Leon
Published: August 2019

Problemski okvir prispevka so prostorske podobe v svetopisemskih pripovedih o stvarjenju. V analizi je bilo obravnavano besedilo razčlenjeno v tri module: modul, ki vsebuje duhovniški zapis o stvarjenju, sledi modul s starejšim jahvističnim poročilom, v zadnjega pa je vključena pripoved o vesoljnem potopu. Analiza je potrdila bogastvo prostorskih podob, ki besedilu niso zgolj okras, marveč so pogosto uporabljene kot nosilci vsebin, v katerih se kaže dramatičnost premen v odnosu med človekom in transcendenco. Primerjava ugotovljenih prostorskih podob z arhitekturno arhetipsko matrico sakralnega je potrdila prisotnost nekaterih arhitekturnih arhetipskih prvin. Te razkrivajo nova obzorja razumevanja istovetnosti krščanskega sakralnega prostora pa tudi sakralnega prostora drugih »religij knjige«.
A systematic review on LGBTIQ Intimate Partner Violence from a Western perspective
Authors: Workman Alex , Dune Tinashe
Published: August 2019

Intimate Partner Violence (IPV) as experienced by minority populations is poorly understood. Within the Western world, the Lesbian, Gay, Bisexual, Transgender, Intersex, and Queer or Questioning LGBTIQ population is one such group which suffers from misrepresentations and misunderstandings. In Western nations, IPV is primarily constructed as perpetrated by men and experienced by women. However, for the LGBTIQ population, this dichotomous view of IPV is inaccurate and invalidating. A systematic review was conducted to investigate the level of LGBTIQ inclusivity within IPV discourses in the Western world as discussed in peer reviewed literature. In particular, the review sought to understand how media, advocacy, policy, and legislation shape LGBTIQ IPV experiences and resulting discourses. The literature search was conducted between June 2018 and January 2019. The search included five electronic databases in psychology, health, and social sciences. Of the 206 articles identified by the search, 21 were reviewed. The review analyzed literature using a thematic approach. Eight key themes emerged, indicating media, legislation, policy, and advocacy are not entirely inclusive concerning LGBTIQ IPV. The review found that pervasive attitudes like heterosexism, cissexism, homophobia, transphobia, and biphobia reinforce institutional barriers and limited LGBTIQ IPV reporting. In addition, the review found low service and provider competency levels, and more broadly, the research was limited. It is likely that heteronormative frameworks and discourses mean many aspects of LGBTIQ IPV are still under-researched. Without a more robust inclusion of diversity in discourses on IPV, services and supports for LGBTIQ people will continue to be limited and based on heteronormative frameworks of victimhood.
Ambivalencia en la figura paterna
Authors: Pinasco Sandra
Published: August 2019

De acuerdo con el psicoanálisis relacional, la conformación de la identidad de una persona necesariamente está sostenida por los patrones de relación introyectados desde la primera infancia. A partir de esta aproximación teórica y algunos conceptos centrales de la teoría autobiográfica, se buscará profundizar en la conformación de la identidad relacional del escritor norteamericano Paul Auster. Ello se logrará analizando su patremoir (memoria centrada en la figura paterna) titulada La invención de la soledad (1982) escrita justo después de la muerte imprevista de su progenitor, en contraste con la memoria Diario de invierno (2012) escrita treinta años después en la que regresa a la figura paterna, aunque de manera intermitente. Las divergencias al momento de aproximarse a la figura paterna, así como los diversos temas sujetos a una resignificación explícita por el autor serán desarrollados con detalle para proponer una posible versión de la identidad relacional del autor.
Dejarse seducir, modelos de mundo y silogismo en la novela sentimental: el caso de Sab
Authors: Ferrús Antón Beatriz
Published: August 2019

La segunda mitad del siglo XIX supone para occidente el nacimiento de la "literatura de masas". En el contexto latinoamericano, la ideología criolla, que había impulsado los procesos de independencia, necesitó consolidar su programa a través de una literatura que permitiera imaginar la patria. Entre las numerosas ficciones que apoyaron el programa nacionalista, la novela sentimental trató de promover el ideal del "buen ciudadano", que encuentra en el matrimonio burgués, en la familia patriota, la forma de fortalecer el estado. La mujer, como "ángel del hogar", actuaría de ayuda y guía, de esposa y madre del buen patriota. Este ensayo pretende analizar el modo en que la crítica como sabotaje, en especial los conceptos de «modelo de mundo» y «silogismo», pueden ayudarnos a analizar la novela sentimental como género con una poderosa función política. El caso de Sab de Gertrudis Gómez de Avellaneda servirá de ejemplo de reflexión. La metodología de lectura que la crítica de sabotaje articula será la aquí empleada.
La desconstrucción de la mirada dicotómica en Grande sertão: veredas
Authors: Coutinho Eduardo
Published: August 2019

Eduardo Coutinho aborda un rasgo esencial de Grande sertão: veredas: la deconstrucción de la mirada dicotómica convencional, a través del cuestionamiento de los opuestos y la imposibilidad de establecer certezas en la realidad que representa la novela. Así, examinará cómo Guimarães Rosa pone en jaque toda la visión tradicional de la narrativa occidental, basada en la lógica cartesiana, de carácter excluyente y alternativo, e insinúa la posibilidad de otro tipo de lógica, de cuño aditivo.
Julio Cortázar, o la vuelta a la modernidad
Authors: Huglo Marie -Pascale
Published: August 2019

Marie-Pascale Huglo reflexiona a propósito de La vuelta al día en ochenta mundos, Julio Veme y Baudelaire, sobre la “modernidad” y la ejemplaridad, aspectos que en el autor argentino promueven un debate filosófico. El análisis de esta importante obra del escritor argentino también recurrirá a diferentes aristas como la estética, el debate sobre los géneros literarios, entre otros.
Acerca de los paisajes de la memoria
Authors: Mutis Álvaro
Published: August 2019

En este breve y hermoso texto, el propio Álvaro Mutis nos regala algunos recuerdos de su vida. La relación entre mundo interior y la evocación de la geografía se plasma de un modo atractivo para todo lector, asiduo o principiante de Mutis, que quiera acercarse a esta muestra de su creación.
Crítica, canon y tradición
Authors: Neme Sánchez Rauf
Published: August 2019

El prestigioso y reconocido crítico literario Ricardo González Vigil dialoga con Cuadernos Literarios sobre el panorama de la crítica literaria en el Perú, los aportes de la reciente teoría dentro de los estudios literarios y los escritores al margen del canon.
PHYSIOLOGICAL
DETERMINATION OF ADAPTIVE RESPONSES LEVEL TO STRESS TO THE
LABOUR AND EDUCATIONAL PROCESSES IN MIGRANTS AND STUDENTS
Authors: Khodzhiev М. , Prokopenko L.V. , Yushkova O.I. , Kapustina A.V. , Gulomova R.A.
Published: August 2019

The paper presents the physiological researches results of nine migrant professional groups who arrived
from south republics of Central Asia to Moscow region of the Russian Federation. We studied the
characteristics of adaptation process in labour migrants by the parameters of the cardiovascular and
neuromuscular systems. Peculiarities of regulation for heart rate variability (HRV) (changes in the
stress-index Sl, AMo values, VLF spectrum power, PARS index) in migrants depending on the neuroemotional
nature of labour activity and the amount of muscle loads are revealed. A pronounced decrease
in dynamometric indices of endurance and maximum performance of arms, body and legs muscles by the
end of work process has been established. We have developed a method to determine the adaptation
process stages with the combined effects of physical severity and neuro-emotional labour intensity, at the
same time, poor adaptation increases health disorders risks.
SOLAR RADIATION
EFFECT ON THE MORBIDITY OF MALIGNANT SKIN NEOPLASMS AND
MORTALITY FROM THEM
Authors: Zaikova Z.A. , Bayanova T.A. , Kravchenko N.A. , Burdukovskaya A.V.
Published: August 2019

We studied the solar radiation effect on the morbidity of malignant skin neoplasms and mortality from
them in the Irkutsk region population as one of risk factors. It is established that population’s morbidity
rates of skin melanoma from 3.3 ± 0.3 to 5.0 ± 0.4 per 100 thousand and other malignant skin neoplasms
from 26.0 ± 0.9 to 32.4 ± 0.9 per 100 thousand increased; the mortality rates from them became
respectively from 1.6 ± 0.2 to 1.8 ± 0.2 per 100 thousand and from 0.2 ± 0.1 to 0.5 ± 0.1 per 100 thousand
in the region during the 2007–2017 period. According to the results of the correlation-regression analysis
we found the effect on the morbidity of malignant skin neoplasms for such parameters as direct solar
radiation on a horizontal surface, total solar radiation, radiation balance and longwave radiation
balance; direct and measured solar radiation influenced mortality from malignant skin neoplasms. To
reduce the morbidity of malignant skin neoplasms of the Irkutsk region population, it is necessary to
widely educate the population about the dangers of excessive exposure to ultraviolet radiation and
inform about local levels of solar radiation according to quality monitoring data.
ON THE SUMMARY OF THE ORGANIZATION OF THE PREPARATION AND HOSTING THE 2018 FIFA WORLD CUP IN KAZAN
Authors: Patyashina M.A. , Trofimova M.V. , Avdonina L.G. , Balabanova L.A. , Zamalieva M.A. , Sibgatullina E.A. , Giniyatova A.M.
Published: August 2019

The paper presents aspects of the organization of activity on the preparation and hosting the 2018 FIFA World Cup in Kazan. The work planning issues of Rospotrebnadzor Office in the Republic of Tatarstan during the preparation and hosting mass events, organizing the work of the operational headquarters, planning and conduction of laboratory and instrumental researches, periodic monitoring of sports facilities, accommodation places and catering for client groups, site surveys and preventive measures were covered. Separately we defined issues of interdepartmental cooperation and adduced the main regulatory documents.
Quality Improvement on Properties of Concrete by using Lightweight Aggregates
Authors:   Civil Engineering, Lakireddy Bali Reddy college of engineering, Mylavaram, India., kumar K. Harish , Teja T. Sai ,   Civil Engineering, Lakireddy Bali Reddy college of engineering, Mylavaram, India, Ramesh B. ,   Civil Engineering, Lakireddy Bali Reddy college of engineering, Mylavaram, India
Published: August 2019

This paper presents an investigation to make the study on workability and strength properties of concrete which is made by Lightweight Aggregates {i.e. Palm Oil Shell (POS) and Pumice Aggregate (PA)}as coarse aggregate. A series of tests conducted in lab containing Slump test, Compaction Factor test, Schmidt Hammer test and Compressive Strength test was led on concrete made by ordinary aggregate as normal weight sample and concrete formed by different ratios of POS and PA separately i.e. 10% to 50% of dry weight of coarse aggregate. All the specimens were underwater for 3, 7 and 28 days as curing stage. In this experimental study, an effort has been made to concentrate the properties of a lightweight concrete M30 using the lightweight aggregate (POS and PA) as a partial replacement to coarse aggregate. The test results indicate that with the increasing amounts of normal aggregates replaced by POS and PA, the slump test, compaction factor test and strength of the Lightweight Aggregate Concrete (LWAC) has reduced gradually. As water absorption of the LWAC has been increased step by step with the increasing amounts of aggregates replaced by POS and PA. Lastly, it is concluded that the use of POS has great future than compared to PA in the construction of structural lightweight concrete.
Determination of Wear Metals Debris Concentration in Aircraft Engines
Authors:   Department of Mechanical Engineering, Ahmadu Bello University, Zaria, Nigeria, Kaisan Muhammad Usman , Abubakar Shitu ,   Department of Mechanical Engineering, Ahmadu Bello University, Zaria, Nigeria, Mustapha M Muhammed ,   Department of Mechanical Engineering, Ahmadu Bello University, Zaria, Nigeria, Narayan S. ,   Department of Mechanical Engineering, Qassim University, Saudi Arabia
Published: August 2019

The presence of debris of metals in the lubricating oil provides important information about the conditioning monitoring of machines. Commonly used method involves use of spectroscopic methods. The sample characteristics was analyzed using two samples of lubricating oils that were categorized A1 and A2. The dry ash method was adopted for the preparation of samples of oil and concentrated H2SO4 in a ratio 1: l, followed by dissolution in a 2 Molar HNO3 acid. These samples were separately subjected to absorption spectroscopy based on atomic analysis and infrared spectroscopy based on Fourier analysis. The concentrations of the wear metals debris were determined along with their corresponding wavelengths. The metals determined includes iron (Fe), Lead (Pb), Manganese (Mn), Zinc(Zn), Copper(Cu), Cadmium(Cd), and Chromium(Cr). The information about thesemetal concentration is an important factor for monitoring and maintenance of aircraft engines and can help in quantitatively recovery of these metals, hence solving environmental problems to some extent.
Water Quality Assessment and Monitoring for river Malaprabha using the Internet of Things(IoT) system
Authors:   Department of Computer Science and Engineering, KLS’s Gogte Institute of Technology, Belagavi, India., Pujar Prasad. M. , Kenchannavar Harish. H. ,   Department of Information Science and Engineering, KLS’s Gogte Institute of Technology, Belagavi, India., Kulkarni Umakant. P. ,   Department of Computer Science and Engineering, SDMCET, Dharwad, India.
Published: August 2019

Water Technology is a new approach for assessing water quality. Water technology is the method by which the water quality can be improved so as to accept the water for a specific use. In this paper, an IoT based water quality assessment has been carried out. The IoT system consists of electronic devices and associated sensors to capture water quality. Experimental samples for water quality check were chosen from, river Malaprabha. The water samples are collected from a water quality monitoring station near Khanapur town, Belagavi district, in the state of Karnataka, India. The water quality parameters assessed here are temperature, pH, Dissolved Oxygen (DO), Total Dissolved Solids (TDS), Biological Oxygen Demand (BOD), Conductivity and Nitrate (NO3). The proposed IoT system collects the real-time water quality data at every regular time interval. The need for real-time assessment is because, in recent years the water is getting polluted at an alarming level, due to urbanization and industrialization, that results in pollutions like an Urban waste, industrial waste, and agricultural waste, etc... disposed into water. Thus making, the use of water even harder for day-to-day anthropogenic activities. The IoT system developed can be used to monitor and assess the water quality parameters.
Transfer Pricing in International Markets: Problems of Information Support
Authors:   Russian Presidential Academy of National Economy and Public Administration (RANEPA), Moscow, Russian Federation., Shakhov Oleg Fedorovich , Chernov Alexander Urevich ,   Financial University under the Government of the Russian Federation (Financial University), Moscow, Russian Federation., Kalashnikova Olga Valenrievna ,   Financial University under the Government of the Russian Federation (Financial University), Moscow, Russian Federation., Sanginova Lola Dodohonovna ,   Financial University under the Government of the Russian Federation (Financial University), Moscow, Russian Federation., Katsiev Mairbek Abuevich ,   Chechen State University, Grozny, Chechnya, Russian Federation.
Published: August 2019

The article characterizes the transfer pricing in international markets, analyzes the “arm’s length principle” as the main principle of taxation of interdependent companies, the motivation of transfer pricing participants, the main features of the transfer pricing practice, and the system regulating the transfer pricing at the interstate level. Based on analyzing various aspects of information support for the transfer pricing system, it has been proved that the best approach to improving it is to establish a permanent document flow to substantiate the level of transfer prices and to further draw up management, financial and tax reports. The novelty of the study consists in the recommendations on the sequence of actions to form a unified system of document flow, and management and financial accounting that would provide management with the information on all transactions with affiliates.
Retrofitting and Rehabilitation of damage footbridge over Yamuna River
Authors:   Assistant Professor, Department of Structural Engineering, Kashi Institute of Technology Varanasi, (U.P.), India., Shukla Anjani Kumar , Maiti Pabitra Ranjan ,   Associate Professor, Department of Civil Engineering, Indian Institute of Technology (BHU) Varanasi, (U.P.), India.
Published: August 2019

Every Structure has a certain predefined age with which it has to withstand, and after that, it requires the rehabilitation/repairing to avoid any damage or collapse. The footbridge over Yamuna River in Delhi, India was constructed in 1960 adjacent to Wazirabad barrage, and this is a very important link to East Delhi and West Delhi. Due to heavy traffic plying on this footbridge, in due course of time, the signs of deterioration were visible in the bridge expansion joint assemblies in the deck slab and cantilever portion of footpath slab. There were many potholes also developed in the wearing course. It was also dilapidation observed in many portions of the footpath, and some portion of the footpath slab were collapsed. The cantilever portion of the footbridge was retrofitted with steel jacketing fixing in the main longitudinal girder of the bridge. In this study analysis of the cantilever footbridge slab retrofitted by a steel jacket was carried out to check the deflection and stress limit of the bridge and it is found that the bridge is safe and now Bridge is open for traffic.