bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Chia Seed Mucilage on the Rhizosphere Hydraulic Characteristics
Authors: Hayat Faisal , Abdalla Mohanned , Munir Muhammad Usman
Published: March 2021

The rhizosphere is one of the major components in the soil–plant–atmosphere continuum which controls the flow of water from the soil into roots. Plant roots release mucilage in the rhizosphere which is capable of altering the physio-chemical properties of this region. Here, we showed how mucilage impacted on rhizosphere hydraulic properties, using simple experiments. An artificial rhizosphere, treated or not with mucilage, was placed in a soil sample and suction was applied to mimic the negative pressure in plant xylem. The measured water contents and matric potential were coupled with numerical models to estimate the water retention curve and hydraulic conductivity. A slower loss of water was observed in the treated scenario which resulted in an increase in water retention. Moreover, a slightly lower hydraulic conductivity was initially observed in the treated scenario (8.44 × 10−4 cm s−1) compared to the controlled one in saturated soil. Over soil drying, a relatively higher unsaturated hydraulic conductivity was observed. In summary, we demonstrated that mucilage altered the rhizosphere hydraulic properties and enhanced the unsaturated hydraulic conductivity. These findings improve our understanding of how plants capture more water, and postulate that mucilage secretion could be an optimal trait for plant survival during soil drying.
Does a Company’s Profitability Influence the Level of CSR Development?
Authors: Otero-González Luis , Durán-Santomil Pablo , Rodríguez-Gil Luis-Ignacio , Lado-Sestayo Rubén
Published: March 2021

The objective of this paper is to analyze the effect of economic and financial performance on Corporate Social Responsibility (CSR). For this reason, we have used the data from a sample made up of 662 companies, 146 registered as medium-sized or large and 516 as small or micro, highlighting the significant weight of small companies in the sample. CSR has been measured using an indicator estimated from the data gathered by way of a questionnaire containing information related with the economic, environmental, and social dimensions. The analysis has been conducted by estimating panel regression models with robust errors. The results show a negative relationship between economic performance and more CSR activities implemented, supporting the Managerial Opportunism Hypothesis. Furthermore, large companies under the pressure of stakeholders are more prone to implementing certain CSR actions than small ones, meaning that a minimum size is essential according to this research.
A Novel Multiobjective Hybrid Technique for Siting and Sizing of Distributed Generation and Capacitor Banks in Radial Distribution Systems
Authors: Venkatesan Chandrasekaran , Kannadasan Raju , Alsharif Mohammed H. , Kim Mun-Kyeom , Nebhen Jamel
Published: March 2021

Distributed generation (DG) and capacitor bank (CB) allocation in distribution systems (DS) has the potential to enhance the overall system performance of radial distribution systems (RDS) using a multiobjective optimization technique. The benefits of CB and DG injection in the RDS greatly depend on selecting a suitable number of CBs/DGs and their volume along with the finest location. This work proposes applying a hybrid enhanced grey wolf optimizer and particle swarm optimization (EGWO-PSO) algorithm for optimal placement and sizing of DGs and CBs. EGWO is a metaheuristic optimization technique stimulated by grey wolves. On the other hand, PSO is a swarm-based metaheuristic optimization algorithm that finds the optimal solution to a problem through the movement of the particles. The advantages of both techniques are utilized to acquire mutual benefits, i.e., the exploration ability of the EGWO and the exploitation ability of the PSO. The proposed hybrid method has a high convergence speed and is not trapped in local optimal. Using this hybrid method, technical, economic, and environmental advantages are enhanced using multiobjective functions (MOF) such as minimizing active power losses, voltage deviation index (VDI), the total cost of electrical energy, and total emissions from generation sources and enhancing the voltage stability index (VSI). Six different operational cases are considered and carried out on two standard distribution systems, namely, IEEE 33- and 69-bus RDSs, to demonstrate the proposed scheme’s effectiveness extensively. The simulated results are compared with existing optimization algorithms. From the obtained results, it is observed that the proposed EGWO-PSO gives distinguished enhancements in multiobjective optimization of different conflicting objective functions and high-level performance with global optimal values.
Analysis of Features Affecting Contracted Rate of Return of Korean PPP Projects
Authors: Kim Kangsoo , Kim Jinoh , Yook Donghyung
Published: March 2021

Various risk factors influence the success of public–private partnership (PPP) projects. This study analyzes the risk attributes of PPP projects and develops a regression model based on a 20-year PPP project database to quantitatively analyze the factors affecting the contracted internal rate of return (CIRR) of PPP projects. Although the risk factors of PPP projects have been widely studied, the factors affecting CIRR have not been explored. Information from the intra-info DB system managed by Korea Development Institute was used to calculate the impact of the variables on CIRR. It was observed that the CIRR of Korea’s PPP projects did not reflect the risks associated with the facility types, service area, amount of private investment, and operation period accurately. Financing costs did not demonstrate a statistically significant relationship with the CIRR either. Furthermore, the CIRR of projects with a minimum revenue guarantee option was found to be higher than that of projects without. The CIRR of the current project was found to be closely related to the number of bidding competitors and the CIRR values of previous projects that are similar to the current one. This is attributed to a failure in the bureaucratic negotiation behavior of the parties due to their avoidance of responsibilities.
Performance Evaluation of WMA Containing Re-Refined Acidic Sludge and Amorphous Poly Alpha Olefin (APAO)
Authors: Fakhri Mansour , Arzjani Danial , Ayar Pooyan , Mottaghi Maede , Arzjani Nima
Published: March 2021

The use of waste materials has been increasingly conceived as a sustainable alternative to conventional materials in the road construction industry, as concerns have arisen from the uncontrolled exploitation of natural resources in recent years. Re-refined acidic sludge (RAS) obtained from a waste material—acidic sludge—is an alternative source for bitumen. This study’s primary purpose is to evaluate the resistance of warm mix asphalt (WMA) mixtures containing RAS and a polymeric additive against moisture damage and rutting. The modified bitumen studied in this research is a mixture of virgin bitumen 60/70, RAS (10, 20, and 30%), and amorphous poly alpha olefin (APAO) polymer. To this end, Marshall test, moisture susceptibility tests (i.e., tensile strength ratio (TSR), residual Marshall, and Texas boiling water), resilient modulus, and rutting assessment tests (i.e., dynamic creep, Marshall quotient, and Kim) were carried out. The results showed superior values for modified mixtures compared to the control mix considering the Marshall test. Moreover, the probability of a reduction in mixes’ moisture damage was proved by moisture sensitivity tests. The results showed that modified mixtures could improve asphalt mixtures’ permanent deformation resistance and its resilience modulus. Asphalt mixtures containing 20% RAS (substitute for bitumen) showed a better performance in all the experiments among the samples tested.
Karst Aquifer Vulnerability Assessment (KAVA) Method—A Novel GIS-Based Method for Deep Karst Aquifers
Authors: Biondić Ranko , Meaški Hrvoje , Biondić Božidar , Loborec Jelena
Published: March 2021

Karst aquifers in the Dinaric karst are very rich with groundwater and are a very important resource for public water supply. The characteristics of the Dinaric karst are the lack, or very thin layer, of covering deposits, large amounts of precipitations, high groundwater velocities, very deep groundwater flow with a lot of faults and fault zones, pits to groundwater, concentrated sinking and large karst springs, making them extremely vulnerable to all anthropogenic influences, which are very quickly transmitted to the aquifer. Numerous multiparameter methods have been developed in the last 20 years to determine the level of vulnerability of aquifers. Each of them has its own specifics and is well adapted to the climate and region for which it was developed. The Karst Aquifer Vulnerability Assessment (KAVA) method was developed in accordance with all the characteristics of the deep karst aquifers of the Dinaric karst and tested on several basins in the area. It was developed as a part of the Global Environment Facility United Nations Environmental Programme – the Mediterranean Action Plan Strategic Partnership for the Mediterranean Sea Large Marine Ecosystem (GEF UNEP/MAP MedPartnership Project). This paper presents the KAVA method and its application to two characteristic karst basins of the Dinaric karst: the Novljanska Žrnovnica spring catchment area and the Bakar Bay catchment area.
Generational Responsibility in Consumption as a Response to Global Economic Crises
Authors: Mladjan Mrdjan Milićev , Marković Dušan Zvonkov
Published: March 2021

The rise of Asian and the stagnation of Western middle classes over the last thirty years have resulted in gradual convergence of income of large parts of the world’s population. Recent global crises—the Great Recession and the COVID-19 pandemic—have led to a decline in income and increase in income uncertainty. Rise in consumption of lower quality goods of shorter durability and an overall decline in demand and economic activity resulted as challenges to the global economy. In this paper, we argue that generational responsibility in consumption can be an environmentally sustainable response to crises which enables the economies to overcome the crisis of confidence and reaffirms community ties. As an element of long-term orientation in consumption, generational responsibility is a cultural phenomenon dependent on solidarity within family and the wider community. It is characterized by consideration of consequences of consumption choices on the environment, and the abundance of savings and the usability of goods to be inherited by future generations. For companies, willing to revisit their traditional business models and incorporate principles of sustainability in their competitive strategies, promotion of generational responsibility can become a new source of competitive advantage and a driver of economic recovery.
Characteristics of Conceptually Related Smart Cities (CRSCs) Services from the Perspective of Sustainability
Authors: Kim Nammi , Yang Seungwoo
Published: March 2021

A smart city has developed gradually with the evolution of services and ICT technologies to achieve sustainability. Many academic and governmental documents reference this; however, there is no existing theoretical or empirical study on the characteristics of smart city services regarding sustainability. In this sense, this study aims to clarify characteristics of Conceptually Related Smart Cities (CRSCs) services from sustainability. The methodologies adopt a matrix taxonomy to sort the previous indicators in the first step. It also utilizes a keyword analysis based on a literature review to identify the characteristics of two concepts. Three outcomes result from the steps of theoretical structures. Firstly, this study develops SSC service indicators based on the synthesis of Sustainable Smart City (SSC) and Smart City and sustainable city. The second outcome is an identification of the relation between SSC services and Conceptually Related Smart Cities. Lastly, the study clarifies the significance of citizen engagement based on the evolutionary concept by typifying service development in the lens of sustainability in CRSCs. This study is worthwhile for understanding smart city services and managing different featured smart cities from a sustainability perspective.
A Fully Symmetrical High Performance Modular Milling Cutter
Authors: Dragoi Mircea-Viorel , Rosca Dorin Mircea , Folea Milena Flavia , Oancea Gheorghe
Published: March 2021

Milling cutters belong to a widely used category of cutting tools. In this category, modular milling cutters are a narrow niche, less studied, and developed. Usually, they are symmetrical cutting tools. A milling cutting tool that can be reconfigured due to its modularity and still keeps its symmetry becomes more interesting and useful for machining. The paper presents such a new concept in a computer aided design (CAD) model of a cutting tool based on some novel features. The tool itself is designed as a modular complex. The way the torque is transmitted from the shaft to the elementary cutters is an original one, as they are joined together based on a profiled assembling. The profile is one formed of filleted circular sectors and segments. The reaming of the elementary cutters has two sections each of them assuming a task: transmitting the torque, and precisely centring, respectively. The cooling system, which is a component of the tool, provides the cutting area with coolant both on the front and side face of the cutting tool. Some nozzles placed around the cutting tool send jets or curtains of coolant towards the side surface of the cutter, instead of parallel, as some existing solutions do. The source of the coolant supply is the inner cooling system of the machine tool. This provides the tool with coolant having proper features: high enough flow and pressure. The output of the research is a CAD-based model of the modular milling cutter with a high performance cooling system. All of this model’s elements were designed taking into account the design for manufacturing principles, so it will be possible to easily manufacture this tool. Several variants of milling cutters obtained by reconfiguring the complex tool are presented. Even if the tool is usually a symmetric complex, it can process asymmetric parts. Symmetry is intensively used to add some advantages to the modular cutting tool: balanced forces in the cutting process, the possibility of controlling the direction of the axial cutting force, and a good machinability of the grooves used to assemble the main parts of the cutting tool.
Genome Sequence of the Bacteriophage CL31 and Interaction with the Host Strain Corynebacterium glutamicum ATCC 13032
Authors: Hünnefeld Max , Viets Ulrike , Sharma Vikas , Wirtz Astrid , Hardy Aël , Frunzke Julia
Published: March 2021

In this study, we provide a comprehensive analysis of the genomic features of the phage CL31 and the infection dynamics with the biotechnologically relevant host strain Corynebacterium glutamicum ATCC 13032. Genome sequencing and annotation of CL31 revealed a 45-kbp genome composed of 72 open reading frames, mimicking the GC content of its host strain (54.4%). An ANI-based distance matrix showed the highest similarity of CL31 to the temperate corynephage Φ16. While the C. glutamicum ATCC 13032 wild type strain showed only mild propagation of CL31, a strain lacking the cglIR-cglIIR-cglIM restriction-modification system was efficiently infected by this phage. Interestingly, the prophage-free strain C. glutamicum MB001 featured an even accelerated amplification of CL31 compared to the ∆resmod strain suggesting a role of cryptic prophage elements in phage defense. Proteome analysis of purified phage particles and transcriptome analysis provide important insights into structural components of the phage and the response of C. glutamicum to CL31 infection. Isolation and sequencing of CL31-resistant strains revealed SNPs in genes involved in mycolic acid biosynthesis suggesting a role of this cell envelope component in phage adsorption. Altogether, these results provide an important basis for further investigation of phage-host interactions in this important biotechnological model organism.
COVID-19 and Neurological Impairment: Hypothalamic Circuits and Beyond
Authors: Mussa Bashair M. , Srivastava Ankita , Verberne Anthony J. M.
Published: March 2021

In December 2019, a novel coronavirus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, the capital of Hubei, China. The virus infection, coronavirus disease 2019 (COVID-19), represents a global concern, as almost all countries around the world are affected. Clinical reports have confirmed several neurological manifestations in COVID-19 patients such as headaches, vomiting, and nausea, indicating the involvement of the central nervous system (CNS) and peripheral nervous system (PNS). Neuroinvasion of coronaviruses is not a new phenomenon, as it has been demonstrated by previous autopsies of severe acute respiratory syndrome coronavirus (SARS-CoV) patients who experienced similar neurologic symptoms. The hypothalamus is a complex structure that is composed of many nuclei and diverse neuronal cell groups. It is characterized by intricate intrahypothalamic circuits that orchestrate a finely tuned communication within the CNS and with the PNS. Hypothalamic circuits are critical for maintaining homeostatic challenges including immune responses to viral infections. The present article reviews the possible routes and mechanisms of neuroinvasion of SARS-CoV-2, with a specific focus on the role of the hypothalamic circuits in mediating the neurological symptoms noted during COVID-19 infection.
Comprehensive Feature Analysis for Sewer Deterioration Modeling
Authors: Hansen Bolette D. , Rasmussen Søren H. , Uggerby Mads , Moeslund Thomas B. , Jensen David G.
Published: March 2021

Timely maintenance of sewers is essential to preventing reduced functionality and breakdown of the systems. Due to the high costs associated with inspecting a sewer system, substantial research has focused on sewer deterioration modeling and identification of the most useful features. However, there is a lack of consensus in the findings. This study investigates how the feature importance depends on the definition of bad pipes and how the feature importance changes between utilities with similar data bases. A dataset containing 318,457 pipes from 35 utilities with a condition state (CS) ranging from one to four was used. The dataset was cleaned, and a backward step analysis (BSA) was applied to two ways of binarizing the CS. Additionally, a BSA was applied for each utility with ≥100 pipes in CS four. The results showed that a selective definition of bad pipes reduced the performance and changed the order of which features contributed the most. In each case, either year of construction, age, groundwater, year of rehabilitation, or dimension was the most important feature. On average 6.5 features contributed to the utility-specific models. The feature analysis was sensitive to the inspection strategy, the size of the dataset, and interdependency between the features.
Determinación de daños generados por vibraciones en una estructura de mampostería y concreto armado
Authors: Alvarado Gómez Carla Begoña , Cristancho Acosta María José
Published: March 2021

La presente investigación tuvo como propósito determinar la existencia de daños ocasionados por vibraciones en una estructura de mampostería y concreto armado, mediante la utilización de acelerómetros como fuente de medición de las excitaciones producidas en la estructura, los cuales, vienen pre-instalados en dispositivos celulares. Esta información es procesada utilizando el software Seismosignal v4.3, que provee las gráficas de aceleración, velocidad y desplazamiento de la partícula en movimiento en cualquier instante de tiempo durante la medición. Se usó la teoría de las rigideces, para analizar la concentración de tensiones producidos por los desplazamientos en los puntos reales de medición. Los valores de vibración resultantes de la aplicación de la fuerza sobre la estructura fueron procesados, traducidos en valores de velocidad máxima de partícula y parámetros de interés, para ser contrastados con los estándares permitidos por las normas DIN 4150 y SN 640312, resultando estar dentro de los parámetros normales máximos de las mismas, teniendo en cuenta que con un margen del 30% por encima de los valores fijados por dichas normativas, significa un pequeño aumento en la probabilidad de daños mínimos.
Comparación de dispositivos de medición de energía con enfoque en pérdidas no técnicas
Authors: Pérez Belisario José Esteban
Published: March 2021

Debido a la crisis energética que se vive a nivel mundial las industrias eléctricas se han interesado por implementar el uso eficiente de la energía. En el caso de Venezuela, el ejecutivo nacional a través del Ministerio del Poder Popular para la Energía Eléctrica, implementó la actualización de los contadores de energía, en donde se instalaron contadores de distintos tipos, aparentemente sin ningún método de selección ni adecuación al área en donde se requería censar la energía. El propósito del estudio fue comparar los contadores de energía instalados por la industria Corpoelec en Valencia, estado Carabobo. Esta investigación se enmarcó en un tipo de investigación documental y de campo. Como resultado se obtuvo que el contador de energía que más se adapte a las condiciones geográficas del territorio nacional y a las exigencias de los usuarios, para así lograr utilizar la energía de manera más eficiente, disminuyendo los errores en el área de contabilización de energía logrando así reducción de las pérdidas no técnicas.
MENGGALI NILAI-NILAI ETIKA SYARIAH PEMBIAYAAN MUDHARABAH
Authors: Rezky Maulida  , Abdul Gafur  , Isna Yuningsih
Published: March 2021

Tujuan penelitian ini adalah untuk memahami kesadaran etika syariah pelaku perbankan dalam pembiayaan mudarabah bank syariah. Penelitian menggunakan paradigma Islam melalui adopsi pendekatan fenomenologi Islam, melalui wawancara terhadap tiga orang pelaku perbankan BNI Syariah cabang Samarinda dan satu orang ahli fikih. Hasil penelitian menunjukkan bahwa kesadaran etika syariah pelaku perbankan berdasar pada nilai hasanah, dakwah, dan matematika akhirat dalam pemberian layanan pembiayaan mudarabah, melalui kepatuhan terhadap norma syariah yang mengatur akad mudarabah.

 

Abstract: Exploring the Sharia Ethical Values of Mudharabah Financing. The purpose of this research is to understand the awareness of sharia ethics in banking actors in Islamic bank mudarabah financing. This research uses the Islamic paradigm through the adoption of the Islamic phenomenology approach, through interviews with three BNI Syariah banking actors in the Samarinda branch and one jurisprudence expert. The results show that the awareness of sharia ethics in banking actors is based on the value of hasanah, da'wah, and the hereafter mathematics in providing mudarabah financing services, through compliance with sharia norms that govern the mudarabah contract.
PLATINOSSOMOSE EM FELINO DOMÉSTICO NO MUNICÍPIO DE PELOTAS, RS, BRASIL
Authors: Ferraz Alexsander , Moura de Lima Camila , Tavares Barwaldt Eugênia , Santos Bierhals Eduarda , Cabral Chagas Bruno , Salame Jéssica Paola , Bernardi da Silva Andreza , Quintana Nizoli Leandro , De Oliveira Nobre Márcia
Published: March 2021

Platynosomum spp. é um trematódeo, da familia Dicrocoeliidae, que tem como hospedeiros definitivo, os felídeos, mas também pode parasitar primatas e aves silvestres. Animais que possuem o hábito de se alimentar de répteis ou anfíbios, são mais susceptíveis. Acomete principalmente o fígado e os ductos biliares, mas pode ser eventualmente encontrado também no intestino delgado, ductos pancreáticos, pulmões e outros tecidos. A fisiopatologia inclui quadro de colangite crônica, podendo se estender e acometer o parênquima hepático e culminar com colangiohepatite, fibrose biliar, cirrose e obstrução biliar. Os sinais clínicos variam conforme a gravidade do caso e a duração da infecção. As manifestações clínicas incluem anorexia, letargia, perda de peso, hepatomegalia, distensão abdominal e vômitos, podendo ocorrer, ainda, icterícia e alteração de consistência das fezes. Os gatos adultos, não domiciliados ou domiciliados com acesso à rua que possuem hábitos de caça, são mais predispostos. O diagnóstico definitivo pode ser feito através da pesquisa parasitológica e presença de ovos em análise coproparasitológica, pela identificação de ovos na bile e mais frequentemente através de histopatologia hepática. O tratamento consiste no uso de anti-helmínticos, sendo que o mais eficaz é o praziquantel. Além disso, medidas preventivas devem ser adotadas, como evitar que os gatos tenham acesso aos hospedeiros intermediários. O presente relato, consiste no diagnóstico coproparasitológico de platinosomose em dois felinos domésticos, no município de Pelotas, RS, Brasil.
[Reseña] Organización, funcionamiento y gestión de los procesos educativos
Authors: Marqués Donoso Albert
Published: March 2021

Juan Carlos Sánchez Huete (Coord.) (2021). Organización, funcionamiento y gestión de los procesos educativos. Madrid: CCS, 163 páginas. ISBN: 978-84-1379-014-5

El libro es una recopilación de siete artículos que se centran en cómo se organizan los centros educativos y expone las ramificaciones de la gestión de los procesos educativos. La presente obra expone una serie de conceptos abstractos que tras el devenir de sus páginas se convierten en elementos tangibles como los proyectos educativos...
Strategi Pengembangan Obyek Wisata Negeri Dongeng Sebagai Destinasi Wisata Unggulan Berbasis Taman Wisata Miniatur Tempoe Doeloe
Authors: Susilo Eko Adi , Maknunah Lu'lu Ul
Published: March 2021

Tourism is one of the major assets that can generate a fairly high source of foreign exchange for the country. Therefore, every area that has certain tourism objects requires regular and sustainable tourism development so that people can take advantage of the existence of tourist destinations in the area. As with the tourism object of the Land of Fairy tales in the area of Kawedusan Ponggok Village, Blitar Regency. The design of this tour is entitled the miniature garden of the wonders of the world which is interesting to visit as a vehicle for education for children. The community can use this as a learning medium and it will have a broad impact on the people around this location to revive the economic sector. This research aims to; (1) Identifying the actual conditions of the current development aspects of the Land of Fairy Tales Tourism. (2) Identifying the influence of the tourism object of the Land of Tales as a vehicle for recreation on tourist visitors and the community around Kawedusan Ponggok Village. (3) Formulating a strategy to develop tourism objects in the Land of Tales as recreational vehicles based on the Tempoe Doeloe tourism park. The research method used by the author in this study is qualitative research and uses a descriptive analysis approach. The results of this study using SWOT analysis techniques can be concluded that the fairy tale tourism development strategy shows that the process of identifying relevant indicators is expected to be able to provide benefits in formulating a tourism development strategy for the Land of Tales in Blitar Regency. Through the formulation of a tourism strategy in a fairy tale country, it is hoped that it will be able to provide benefits to strengthening the  competitive bidding position of the concepts offered. It is hoped that this will also be able to provide benefits to strengthening the economic and social aspects of the community at large.
FACTORES DE RIESGO ASOCIADOS A LA RETINOPATÍA DE LA PREMATURIDAD
Authors: RAMOS-URIBE REBECA
Published: March 2021

Objetivo: Describir los factores de riesgo asociados a la a la retinopatía de la prematuridad. Materiales y métodos: Estudio de revisión, descriptivo transversal. Resultados: La retinopatía de la prematuridad (ROP) es una enfermedad reportada a nivel mundial en los bebés prematuros en los que se afecta el desarrollo de la vasculatura retiniana. La presentación varía desde casos leves que pueden llegar a resolverse como casos graves que culminan en ceguera. Los factores de riesgo principales son el bajo peso al nacer y la edad gestacional, pero también se han descritos otros como la transfusión de sangre, la terapia con oxígeno, entre otros. Discusión: Se ha reportado una incidencia entre 19 a 30% a nivel mundial en bebés prematuros con un rango de peso igual o menor a 1300-1500 gramos con 33 semanas de gestación. Sin embargo aún está en discusión si el sexo femenino o masculino estaría asociado a su desarrollo. Existen factores del manejo del recién nacido prematuro como la terapia prolongada con oxígeno, así como variables maternas clínicas y socioeconómicas y factores neonatales que influirían en la presentación de ROP. Conclusiones: Los principales factores de riesgo de la retinopatía neonatal bajo peso al nacer y con baja edad gestacional. Es necesario que a nivel local se genere evidencia cuantitativa sobre los factores de riesgo asociados a ROP en nuestras condiciones, con el objetivo de formular recomendaciones que apoyen a la parte clínica.
RESPUESTA DE LA CARTA AL EDITOR: SATISFACCIÓN DE USUARIOS EN CONSULTA EXTERNA DE HOSPITALES PÚBLICOS DE LA REGIÓN ICA, 2018.
Authors: BECERRA-CANALES BLADIMIR
Published: March 2021

Estimado Editor:

En respuesta a la carta al editor respecto al artículo titulado “Satisfacción de usuarios en consulta externa de hospitales públicos de la región Ica, 2018” publicado en el número 3 del volumen 7 del año 2018; de mi autoría, me permito hacer algunas precisiones.

Dado que, el nivel de satisfacción más bajo encontrado en el Hospital Regional de Ica (HRI) y el más alto en el Hospital Apoyo de Nasca (HAN); en la carta al editor se afirma que: “Este resultado se debe a la distancia y equipos que diferencia a estas Instituciones Hospitalarias”. A ese respecto es necesario informar que según la Norma Técnica de Categorización de Establecimientos de Salud del MINSA1, ambas instituciones se diferencian por su nivel de complejidad y el equipamiento depende de la oferta de servicios de salud según la categoría asignada. El HRI, es el nosocomio de mayor complejidad de la región (Mejor equipamiento); por lo tanto, es un hospital referencial, de ahí que las Instituciones Prestadoras de Servicios de Salud (IPRESS) están organizados en función a su nivel de complejidad y el usuario externo consciente de ello, está en la condición de emitir un juicio razonable de su percepción respecto a la satisfacción, más aun si reconocemos que el trato, es el primer aspecto que el usuario toma en cuenta para valorar la calidad de atención; siendo así, la satisfacción del usuario debe ser la misma en una IPRESS del primer o segundo nivel de atención; por ende, el equipamiento y la distancia constituyen posibles factores asociados de la insatisfacción usuaria de ahí que sería prematuro aseverar que: “El traslado de un lugar a otro sea un factor negativo y significativo para medir su satisfacción”; más aún, si no disponemos de un antecedente investigativo previo, en el contexto temporal y espacial donde se realizó el estudio por tratarse de una investigación de nivel descriptivo; no obstante, se sugiere a quienes comparten la misma Línea de Investigación, realizar estudios de nivel relacional y/o explicativo (Desarrollar la Línea de Investigación), para identificar los factores condicionantes de la insatisfacción usuaria o explicar una relación de causalidad entre las variables analizadas.
Continuity, Discontinuity, Invention, Reinvention of African Aesthetics or Cultural Memory and Change
Authors: Kaputu Felix Ulombe , Mwepu Fidèle
Published: March 2021

The question of aesthetics, memory, and changes in Africa are raised from several perspectives. A few European scholars alleged Africa did not have a past and could not produce aesthetics, material or immaterial resources to share with the world, for its past was empty, and a-historical. Unfortunately, these scholars’ arguments influenced history, justified colonization, slavery, and their multidimensional violence. This paper gives a quick survey of these moments and underlines false accusations against Africa. The question of aesthetics, memory, and changes in Africa are raised from several perspectives. A few European scholars alleged Africa did not have a past and could not produce aesthetics, material or immaterial resources to share with the world, for its past was empty, and a-historical. Unfortunately, these scholars’ arguments influenced history, justified colonization, slavery, and their multidimensional violence. This paper gives a quick survey of these moments and underlines false accusations against Africa. Contributions from scholars from the South such as Mudimbe, Mbembe, Bhabha, and Appadurai attested spectacular results combining findings from archaeologists, historians, art historians, anthropologists, linguists, culturalists, musicologists, and philosophers in interdisciplinary studies. Africa has always been a vibrant cultural continent that colonization and slavery defiled. Borrowing Apter’s question about “what should be done” concerning all findings on African aesthetics and history, the text invites scholars to push ahead in their quest of communications, comparisons, originalities drawn from the distant African past, adapted to local, global, Diaspora’s dynamics, and glocal perspectives. It is time to stop accusations and complaints on the past for turning to documented global visibility.
OLIVEIRA, Solange Ribeiro de. Alvoroço da criação: a arte na ficção de Clarice Lispector. Belo Horizonte: Editora UFMG, 2020.
Authors: Figueiredo Camila Augusta Pires de
Published: March 2021

Neste ano que marca o centenário do nascimento de Clarice Lispector, a Editora UFMG publica Alvoroço da criação, obra de autoria de Solange Ribeiro de Oliveira que discute a relação da ficção da autora com as artes visuais, em especial a pintura, a escultura, a arquitetura, as artes decorativas e a natureza-morta. A convergência entre as artes estabelece o pano de fundo que abriga os pontos cruciais de sua escrita: os temas existenciais e a condição da mulher, localizada em uma longa tradição ecfrástica feminina que será abordada no volume.
Cinema e migrações em perspectiva de gênero
Authors: Assis Gláucia  de Oliveira , Santos Joelma Ferreira dos
Published: March 2021

A mobilidade humana é uma experiência comum a todos os povos, sobretudo em momentos de crises. Essas experiências de mobilidade têm lugar em várias narrativas cinematográficas, sobretudo as chamadas grandes migrações do final do século XIX e início do século XX. Nas cinematografias argentina e brasileira esse foi um filão bastante explorado. Em períodos mais recentes, as questões de gênero passaram a integrar as preocupações dos/as pesquisadores/as dos processos migratórios. Tomando como fontes de pesquisa os filmes latino-americanos Bolivia (Israel Adrián Caetano, 2001) e Estômago (Marcos Jorge, 2007), analisamos as representações acerca dos movimentos migratórios abordados nesses filmes desde uma perspectiva de gênero. Entendendo as masculinidades como construções culturais e considerando o conceito de masculinidade hegemônica (CONNELL, 2013, 2015), buscamos perceber como se (re)configuram as masculinidades dos personagens desses filmes em contextos diversos de seus locais de origem e nas situações de vulnerabilidade a que estão expostos.
Wykłady filozoficzne do użytku studentów Akademii Połockiej
Authors: Angiolini Giuseppe
Published: March 2021

This is a Polish translation of a fragment of Institutiones Philosophicae ad usum studiosorum Academiae Polocensis by Giuseppe Angiolini S.J. It corresponds to an article, entitled On Being, its Essence and Existence. The original Latin text is also included in the article.
Aleksander Posacki SJ: L’esperienza tragica come iniziazione: Lev Šestov
Authors: Głaz Stanisław
Published: March 2021

The article reviews the book L' esperienza tragica come iniziazione: Lev Šestov [Tragic Experience as Initiation: Lev Shestov], by Aleksander Posacki.
Ruch unieruchomiony
Authors: Ziemiański Stanisław
Published: March 2021

This article discusses the problem of movement. The meaning of the term “movement” has undergone more changes in the course of history than any other term. The main change has been the immobilizing of movement. To show this, the author briefly presents the vicissitudes of its development from antiquity to the present. The relation between force and movement is also considered. In this matter the author follows the approach of Fr. John Dorda SJ, who proves that forces are not efficient causes, but rather formal causes. The fields of forces do not influence movement generally, but only its shape and trajectory. To illustrate this, four cases are presented and the Lorentzian equation is adduced. The problem of the ontological status of movement has been discussed at some length. It is argued that movement cannot be reduced to geometrical relations alone.
Sonochemical synthesis of Au/Pd nanoparticles on the surface of LiFePO₄/C cathode material for lithium-ion batteries
Authors: Yoshida Kotaro , Okawa Hirokazu , Ono Yuki , Kato Takahiro , Sugawara Katsuyasu
Published: March 2021

With the aim of investigating the deposition of Au/Pd core–shell nanoparticles (NPs) on cathode materials to decrease charge transfer resistance, Au/Pd core–shell NPs were successfully synthesized and deposited on LiFePO4 coated with carbon (LiFePO4/C) using ultrasound irradiation. Transmission electron microscopy observation confirmed that dispersed Au/Pd NPs with an average particle size of 7.2 nm were deposited on LiFePO4/C. An X-ray diffraction measurement evidenced a peak shifting from 38.2° to 39.1° upon calcination at 400 °C in Ar atmosphere, which can be attributed to the phase transition of the Au/Pd NPs from core–shell to alloy.
Kompozit alkatrész numerikus elemzése mikromechanikai jellemzők figyelembevételével
Authors: Beleznai Róbert , Spisák Bernadett , Siménfalvi Zoltán
Published: March 2021

Az elemzés célja egyrészt egy kompozit anyagból készült alkatrész numerikus elemzése anyagának mikromechanikai jellemzői figyelembevételével, másrészt ehhez kapcsolódóan annak vizsgálata, hogy az eredetileg fémből készült alkatrész kiváltható-e kompozit polimer anyaggal az alkatrész súlyának csökkentése mellett a funkcionális és szilárdsági jellemzők megtartásával. A kompozit alkatrész gyártástechnológiájából eredő anizotrópiájának meghatározásához elvégeztük az alkatrész fröccsöntés technológiai szimulációját, majd a szimulációs eredmények felhasználásával végeselem analízis segítségével meghatároztuk az alkatrész statikus mechanikai terhelés esetén fellépő igénybevételeit.
Intelligens hulladékgyűjtési rendszer integrálása city logisztikai folyamatokba
Authors: Bányai Tamás , Somody Dóra , Akkad Mohammad Zaher
Published: March 2021

A negyedik ipari forradalom és az úgynevezett Ipar 4.0 technológiák fókuszában ugyan az egyedi vásárlói igények tömeggyártás hatékonyságával történő kielégítése áll az ellátási láncban szereplő erőforrások intelligens hálózatba kapcsolása révén, azonban hatékonyságnövelési törekvések nem csupán a termelés területén jellemzőek, hanem a szolgáltatási tevékenységekben is. Az Ipar 4.0 technológiák alkalmazása az ellátási láncok minden területén hatékonyságnöveléshez vezethet, ide értve a beszerzési, termelési, elosztási és inverz logisztikai folyamatokat. A hatékonyságnövelés és a mobilitás szoros kapcsolata nem csupán az ellátási láncokat, a first-mile és last-mile folyamatokat érinti, hanem a városi logisztika szempontjából is egyre inkább meghatározóvá válik. Jelen cikk keretében a szerzők a city logisztika kiber-fizikai rendszerként történő megvalósítására mutatnak példát elektromos járművek és mikromobilitási eszközök alkalmazásával. A bemutatott megoldás egy olyan intelligens rendszer, melyben olyan fel- és leadási feladatok optimális kiszolgálása végezhető el nagy hatékonysággal, alacsony környezetterheléssel, mint postai csomagok kézbesítése, boltok ellátása áruval, vagy a kommunális hulladék gyűjtése.
A vasalási eljárás felületi érdességre és alakhelyességre gyakorolt hatásának vizsgálata
Authors: Varga Gyula , Ferencsik Viktória
Published: March 2021

A kis környezetterhelésű, forgácsnélküli vasalási eljárás javítja a megmunkált felület integritását. A csúszó súrlódásos gyémántvasalása után eredményeződő felületi érdesség és hengerességi hiba elemzését végeztük el. Kutatómunkánk célja annak meghatározása, hogy az EN AW-2011 jelű gyengén ötvözött alumínium anyagú munkadarabok vasalása során az alkalmazott technológiai paraméterek hogyan befolyásolják a felületi érdesség (Ra) és a hengerességi hiba (CYLp, CYLv és CYLt) jellemző értékeit.
Útépítésben használt kőanyagok lehetséges anyagvizsgálati módszerei
Authors: Géber Róbert
Published: March 2021

Jelen cikk különböző, az anyagtudományban alkalmazott anyagvizsgálati módokat ismertet, fókuszálva azok aszfalttechnológiai alkalmazhatóságára. A technikák bemutatásával a Szerző célja az aszfaltgyártók érdeklődésének felkeltése, annak érdekében, hogy kőanyagokról pontosabb ismeretek váljanak elérhetővé. Az így szerzett ismeretek segíthetik az aszfaltechnológusok munkáját a gyártástechnológia során.
Elválasztási műveletek és azok berendezéseinek vizsgálata
Authors: Kállai Viktória , Szepesi L. Gábor
Published: March 2021

A tanulmány célja alacsony szénatomszámú szénhidrogén elegyek desztillációs úton történő szétválasztásának vizsgálata és a gyakorlatban is alkalmazható megoldások keresése. Továbbá vizsgálatuk a nyomásveszteség értékét szita- és buboréksapkás tányérok alkalmazásakor. A kutatási időszakban a szimulációk készítéséhez a Unisim Design folyamatszimulátor szoftvert használtuk.
Homlokmarással előállított síkfelületek érdességi és inhomogenitási vizsgálata
Authors: Nagy Antal
Published: March 2021

A cikkben acélon szimmetrikus homlokmarással előállított felületeken végzett érdességi vizsgálatokról és inhomogenitási elemzésről számolok be. Ennek során az előtolás és a forgácsoló sebesség hatásainak elemzéseit és megállapításait közlöm, valamint az inhomogenitási jelenség megfigyelésével foglalkozom.
Challenges of the sustainability of Hungarian district heat suppliers : Specificities of the replacement of assets in the district heat sector
Authors: Süveges Gábor Béla
Published: March 2021

The aim of the study is to highlight an area of regulation of district heat suppliers that needs to be addressed in order to achieve sustainable, long-term, and safe operation. Fixed assets make up the largest proportion of the asset structure of companies carrying out district heating supply activities. In order to ensure sustainable, long-term, and safe operation it is important to replace these assets on a regular basis. According to my calculations though, in the period of the study the investment activity in the sector, considering the average age of the assets used in the district heating supply, was not satisfactory. The current regulatory and support system does not encourage replacement, improvements and modernization.
A műemlékvédelem, mint az egészséges környezethez való alapvető jog intézményvédelmi garanciáinak egyik pillére
Authors: Jámbor Adrienn
Published: March 2021

A műemlékvédelemmel kapcsolatos szabályokról a kulturális örökség védelméről szóló 2001. évi LXIV. törvény önálló fejezetben rendelkezik. A kulturális örökség védelme magába foglalja a műemlékekre, a régészeti örökségekre, valamint a kulturális javakra vonatkozó szabályokat egyaránt. A kulturális örökség védelméről szóló törvény különbséget tesz a műemlék és a műemléki érték fogalmak között, amelyek vizsgálata alapján megállapítható, hogy a műemléki érték egy tágabb fogalom, amelynek egyik típusa a műemlék. A definíciókból adódóan nem minden műemléki érték minősül műemléknek, az elhatárolás alapja a védetté nyilvánítás. A műemlékvédelem általános feladatait a kulturális örökség védelméről szóló törvény a műemléki értékek, a műemlékek és környezetük, valamint az oktatás-kutatás kategóriák mentén határozza meg. A műemléki értékek tekintetében a legfőbb feladat azok felkutatása, tudományos kutatása, értékelése és számbavétele, dokumentálása, nyilvántartása, védetté nyilvánítása. Tanulmányomban elsősorban a műemlékek védelmét érintő kérdéseket kívánom bemutatni.
A fenntartható fejlődés és a társadalmi innováció kvantitatív összefüggései
Authors: Karajz Sándor , Kis-Orloczki Mónika
Published: March 2021

Tanulmányunkban összefoglaljuk a fenntartható fejlődés és a társadalmi innováció mérésének jellemzőit, majd fő célunk annak vizsgálata, hogy milyen kapcsolat figyelhető meg a társadalmi innovációs képesség és a fenntartható fejlődés között. Kutatásunk során a társadalmi innovációs potenciál és a fenntartható fejlődés indikátorai közötti összefüggéseket elemeztük Magyarország és a Visegrádi Együttműködés országaiban, statisztikai módszerek segítségével. Megvizsgáltuk, hogy milyen a kapcsolat a két terület között, és milyen különbségek mutatkoznak Magyarországon, valamint a V4 országaiban.
Történelem a politika hátterében : A rendszerváltás utáni Magyarország politikai rendszere, valamint 19-20. századi előzményei
Authors: Fazekas Csaba
Published: March 2021

A cikk a „Történelem a politika hátterében” c., a „Fiatalodó és megújuló egyetem – Innovatív tudásváros” projekt támogatásával megvalósult kutatási program beszámolóját foglalja össze. A kutatási program két periódusra oszlott: 1. Az 1989–90-es rendszerváltás utáni magyar politikai rendszer egyes sajátosságai (közös kutatás Fekete Sándorral). 2. A magyar politikai rendszer 19–20. századi előzményei (saját kutatások). A cikk bemutatja a kutatási program legfontosabb területeit és eredményeit: önkormányzatiság és a politikai pártok rendszere a rendszerváltás utáni Magyarországon, a 19. századi liberalizmus és a két világháború közötti, ún. „keresztény-nemzeti” ideológia öröksége.
Kompetenciák súlya a hátrányos helyzetű településeken élők egészségmutatóinak javítására történő törekvésekben
Authors: Perge Anna
Published: March 2021

A depriváltság és az ezzel szorosan összefüggő hátrányos helyzet kérdésköre összetett: mind társadalmi, gazdasági, mind egészségügyi vonatkozásban mutatkozó negatív hatásai számottevők. A leszakadó térségekben kiemelt figyelmet kell fordítanunk az egészségmutatók javítására. Több, Magyarország perifériáján végzett kutatásról hazai és nemzetközi területen megjelent szakirodalmak összefoglalása nyomán, holisztikus szemlélet szükséges a hátrányos helyzetű településeken élők egészségének pozitív irányba mozdításához. A kutatások eredményei rávilágítanak arra, hogy melyek a kulcskompetenciák az ellátórendszer eredményes törekvéseihez, továbbá lehetőség nyílik a felmerülő plusz kompetenciák fejlesztésére irányuló fejlődési utak beazonosítására, a hatékony munkához szükséges támogatások irányának megismerésére.
Gyógynövények szerepe a turizmusban és az egészségügyben
Authors: Pászk Norbert
Published: March 2021

A projekt időszakában fitoterápiával, azaz gyógynövénygyógyászattal kapcsolatban végeztem főként kutatásaimat, írtam meg publikációimat és népszerűsítettem a gyógynövényeket különböző rendezvényeken, programokon, főleg az egyetem hallgatói számára. A gyógynövények használata reneszánszát éli, az emberek ismét visszatérnek a természethez, újra felfedezik a gyógynövényeket és azok jótékony hatását, valamint egyre nagyobb mértékben kezdenek feléjük fordulni a gyógyulni vágyók, valamint az egészséges életmódot fontosnak tartó emberek. Magyarország gyógynövény nagyhatalomnak számít, 400 körüli gyógynövény fajtájával, azonban az adottságokat, lehetőségeket nem használjuk ki eléggé, pedig a gyógynövények nélkülözhetetlenek az emberek számára és a hazai turizmuson, egészségturizmuson belül is jelentős szerepet játszhatna a gyógynövényturizmus, mint ágazat.