bluuebunny/crossref_metadata_2025 huggingface dataset:
NaX Nano-taneciklerin ağır metal ve boyar maddelere karşı adsorpsiyon kapasitelerinin belirlenmesi
Authors: YÜREKLİ Yılmaz
Published: May 2019

Endüstriyel atık
sular içerisinde bulunan ağır metal iyonlarının giderimi için adsorpsiyon
etkili bir yöntemdir. Kullanılan adsorbentlerin verimliliğinin artırılması
tanecik boyutunun mikron altına indirgenmesiyle mümkündür. Dolayısıyla, bu
çalışmada zeolit nano-tanecikler klasik hidrotermal yönteme göre sentezlenerek
kurşun, nikel, bakır, gümüş ve metilen mavisi için adsorpsiyon kapasiteleri
kesikli proseslerde 25˚C sabit sıcaklıkta, farklı adsorbent ve kirletici
konsantrasyonlarında belirlenmiştir. X-ışını kırınımı (XRD), elektron taramalı
mikroskop (SEM) ve enerji dağılımlı X-ışını (EDX) analiz sonuçları, üretilen
zeolit nanotaneciklerin, yaklaşık 170 nm boyutunda çok küçük ve düzgün tanecik
yapısına sahip, Si/Al oranı 1.24 olan saf NaX-FAU olduğunu göstermiştir.
25˚C’de yapılan kesikli adsorpsiyon çalışmaları, NaX nanotaneciklerin kirletici
bileşenlere karşı yüksek afiniteye sahip olduğunu göstermiştir. Başlangıç metal
iyonu ve boyar madde konsantrasyonlarının artırıldığı durumlarda, NaX sorpsiyon
kapasitesi artmıştır ve kurşun, nikel, bakır, gümüş ve metilen mavisi için
sırasıyla 0.99, 1.33, 2.11, 1.89 ve 0.15 mmol/g maksimum değerlere ulaşmıştır. Sips
izoterm model denklemi bütün kirleticiler için elde edilen deneysel denge
değerlerini başarılı bir şekilde tanımlamıştır. NaX’in gerçek bir atıksu
içerisindeki ağır metal adsorpsiyon deneyleri, çözelti içerisinde kalsiyum ve
potasyum iyon konsantrasyonlarının yüksek olmasına rağmen, düşük konsantrasyondaki
kurşun ve nikeli yüksek oranda tutabileceğini göstermiştir.
Kalite fonksiyonu göçerimi (KFG) ile askeri havacılıktaki bakım faaliyetleri için yeni ürün tasarımı
Authors: ALTUNTAŞ Serkan , DERELİ Türkay , ÖZŞALAP Cengiz
Published: May 2019

Bu çalışmada, F-16 savaş
uçaklarının bakım operasyonlarında kullanılmak üzere yaratıcı problem çözme
teorisi (TRIZ) kullanılarak geliştirilmiş bir ekipmanın, Kalite Fonksiyonu
Göçerimi (KFG) ile kullanıcı isteklerine göre yeniden tasarımına yönelik bir
uygulama yapılmış ve daha iyi bir çözüm önerilmiştir. Söz konusu ekipman, Türk
Silahlı Kuvvetleri (TSK) tarafından askeri havacılıktaki bakım faaliyetleri
için hâlihazırda kullanılmaktadır. Ekipmanın yeni kullanılmaya başlanmış olması
nedeniyle geliştirilebileceği ve kullanıcı görüşleri doğrultusunda
iyileştirilebileceği değerlendirilmiştir. Bu nedenle, yazında müşteri/kullanıcı
görüşleri doğrultusunda (özellikle yeni) ürün geliştirme sürçlerinde kullanılan
KFG uygulaması bu çalışmada sunulmuştur. Çalışma kapsamında oluşturulan kalite
ekibinden görüşme yoluyla elde edilen verilerden hareketle müşteri
gereksinimleri belirlenmiştir. Daha sonra teknik gereksinimlerin de
belirlenmesiyle, KFG uygulamasının önemli girdileri elde edilmiş ve kalite
evinin oluşturulmasıyla, kullanılmakta olan ekipmanın kullanıcı görüşleri
doğrultusunda nasıl geliştirilmesi gerektiğine ilişkin bilgiler derlenmiştir.
Bu bilgilerden hareketle, ekipmanın yeniden tasarımına yönelik iyileştirme
önerilerinde bulunulmuştur. Çalışmanın yazına iki önemli katkısı bulunmaktadır.
Birincisi, mevcut durumda literatürde tanıtılan bir ekipman bu çalışma ile
yeniden tasarlanarak alternatif yeni bir ürün önerilmiştir. İkincisi, KFG
kullanılarak sistematik şekilde ürün geliştirmeye yönelik bir gerçek hayat
uygulaması adım adım sunulmuştur. Çalışma kapsamında sunulan iyileştirme
önerilerinin dikkate alınmasıyla, geliştirilen yeni ekipmanın üretilmesi ve
kullanılmasının havacılık sektöründeki bakım operasyonlarındaki etkinliği ve
verimliliği arttıracağı düşünülmektedir.
Effect of the stirring speed on the struvite formation using the centrate from a WWTP
Authors: Gonzalez Morales Carolina , Camargo-Valero Miller Alonso , Molina Pérez Francisco José , Fernández Belén
Published: May 2019

The formation of struvite (MgNH4PO4·6H2O) for nutrient recovery in wastewater treatment plants has been widely investigated; however, little attention has been paid to the effect of stirring speeds on the resulting particle size, which could affect its agronomic value as a slow-release fertilizer. In this study, struvite formation from the centrate of sewage digestate was performed under six stirring speeds (0, 100, 200, 300, 400, 500 rpm). The resulting struvite crystals were characterised using X-ray diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy. The average particle size of struvite crystals increased from 55 µm at 0 rpm to 127 µm at 100 rpm and 128 μm at 200 rpm.  Further increments in stirring speeds resulted in smaller crystal sizes. These results indicated that the largest particle size can be obtained at stirring speeds ranging from 100 to 200 rpm, equivalent to a velocity gradient between 79 and 188 s-1, as there was no statistically significant difference between mean values (t-test, p<0.05). The optimum stirring speed range reported herein can be used to set operational conditions for struvite crystallisation with the benefit of producing large crystals and reducing energy consumption in stirring tanks.
Alternative pretreatments of rice and tobacco wastes for the production of fermentable sugars
Authors: Curbelo Hernández C. , Véliz Lorenzo E. , Ameneiros Martínez J. M.
Published: May 2019

Thescarce oil supplies and the emissions of gases of greenhouse effect have caused the interest in production and utilization of lignocellulosic bioethanol. This can substitute partially or totally the fossil fuels. The stages of pretreatment and enzymatic hydrolysis are the most expensive. Different pretreatments have been studied for ethanol production from these materials. Their results depend on the method characteristics and on biomass used. The agroindustrial wastes present a composition with possibilities of being evaluated like raw material for bioethanol production. In the present research, the pretreatment stages with Ultrasound and Ozone are studied, in order to decrease the lignin content and to increase the performance of the fermentative sugars in the lignocellulosic wastes (rice hull and dark tobacco vein). In the first pretreatment procedure, time and waste type were studied and in the second stage, the ozone concentration, waste type and moisture content were the studied variables. A combined procedure was applied to the best preliminary results. It is demonstrated that a decrease in the lignin concentration and the structural transformation of the materials under consideration come true. The best results were gotten for the rice hulls.
OR/MS research perspectives in disaster operations management: a literature review
Authors: Lamos Díaz Henry , Aguilar Imitola Karin , Acosta Amado Rolando José
Published: May 2019

The unexpectedness of natural disasters makes handling their impacts on the population, the environment and the economic resources a challenging decision-making process that must be wisely performed in a very short period of time.  The process involves the allocation of scarce resources to deliver aid and relief to the affected population in order to minimize the consequences of the event. An adequate management of operations to disaster response is challenging for decision makers and it has become a topic of significant relevance on a worldwide basis. As a result, academics and practitioners in the field of OR/MS have increased their interest in developing tools to support the decision-making processes on a disaster scenario.  This paper surveys the OR/MS literature to identify new trends of increasing interest in disaster operations management (DOM) that have emerged in the last five years. A discussion on the gaps that have been successfully addressed in the last five years and those that remain opened is also presented.
Influence of the patch loading length on the buckling coefficient of longitudinally stiffened plate girders
Authors: Loaiza Nelson , Graciano Carlos , Chacón Rolando
Published: May 2019

This paper aims at investigating the effect of the bearing length on the elastic buckling behavior of longitudinally stiffened girder webs subjected to patch loading. Buckling coefficients are calculated by means of linear finite element analysis. Furthermore, a parametric analysis is performed to study the influence of other geometric parameters such as the panel aspect ratio and the geometrical properties of the longitudinal ones. Buckling coefficients of longitudinally stiffened girder webs are computed numerically. The results show that the buckling coefficient for longitudinally stiffener girder webs increases with the loading length. However, this conclusion is considerably affected by other factors such as the position of the stiffener, and panel aspect ratios.
Las experiencias profesionales de los estudiantes de interpretación como fuente de mejora en los programas de formación de intérpretes en Chile
Authors: Pavez-Gamboa Pedro , Urra Ambar , Carvajal Carol
Published: May 2019

Existe un consenso general respecto a que la experiencia en el campo profesional, previo al término del proceso formativo, es crucial no solo para una transición más adecuada al campo laboral, sino también para promover el desarrollo integral del estudiante. Las actividades profesionales que los estudiantes realizan se convierten en mediaciones privilegiadas del proceso de formación de los profesionales. Por ello, la presente investigación se centra en alumnos de interpretación que tuvieron experiencias profesionales durante su formación. En este contexto, la consideración de las voces de los estudiantes es crucial para identificar nuevas necesidades en la formación de intérpretes. Mediante entrevistas a quince estudiantes con experiencia profesional de tres universidades de Chile, se indagó en las percepciones y expectativas que estos tienen respecto a la experiencia profesional vivida y su formación. De este modo se determinó que la experiencia profesional previa al egreso permite la incorporación de nuevos conocimientos, acciones, técnicas y actitudes, así como también facilitan la resignificación del proceso de aprendizaje y enseñanza, transformándolo en un proceso bidireccional, en la que las experiencias de los estudiantes mejoran los programas formativos.
Las principales motivaciones de los ingresantes para estudiar traducción e interpretación profesional en la Universidad Peruana de Ciencias Aplicadas
Authors: Antialon-Yauri Jacqueline , Márquez-Llatance Katherine
Published: May 2019

Este artículo de investigación de tipo exploratorio investiga las principales motivaciones de los alumnos de primer ciclo de la Universidad Peruana de Ciencias Aplicadas para estudiar la carrera de Traducción e Interpretación. Para ello, se revisa la literatura relacionada y se sustenta la metodología utilizada. Luego, se describe los resultados de la encuesta, que muestran la gran influencia de las motivaciones intrínsecas en la elección de la carrera, principalmente la vocación, el deseo de ayudar mediante una comunicación efectiva y la pasión por las lenguas y sus culturas. De igual forma, se expone el perfil de los alumnos ingresantes, que incluye características como edad, sexo, experiencia relacionada con la carrera y expectativas laborales. Enseguida, se plantea una comparación de resultados y, finalmente, se expone los hallazgos de tipo descriptivo que buscan ser un punto de partida para futuras investigaciones.
Taller Lasirén: formación en traducción como proyecto editorial
Authors: Del Valle Idárraga Mónica María , Moreno-Molina July Katherinne , Parrado-León Michael Arley
Published: May 2019

Este artículo describe el proceso de consolidación de un taller de formación de traductores especializados en literatura del Gran Caribe. Se trata en detalle la historia del taller y la metodología empleada. Se destacan las ventajas del enfoque colaborativo en esta modalidad académica mas no institucional de taller de traducción y se resalta la funcionalidad que puede tener este trabajo para proyectos editoriales y universitarios en el contexto colombiano.
Effect of alkaline pre-treatment on the anaerobic biodegradability of coffee husk
Authors: De la Cruz-Martorell K , Gómez-Salcedo Y , Santander Y , Catagua Mera D J , Mendoza JCD , Pereda-Reyes I
Published: May 2019

The present paper deals with the mono-digestion of coffee husk during the operation of batch reactors and semi-continuous stirred tank reactor (S-CSTR) using both pre-treated residual at 3% Ca(OH)2 and without pre-treatment. The semi-continuous operation was carried out in 4 stages at different organic loading rate (OLR, [gVS L-1 d-1]) and hydraulic retention time (HRT, [d]) (OLR:HRT) ratios (0.1:90, 0.2:90, 0.2:45 and 0.2:30). As a result of the pre-treatment, up to 223% of the organic matter solubilisation was obtained. However, pre-treatment did not provide better results in biodegradability, observing a negative trend in methane yield when operating in S-CSTR, due to the accumulation of compounds from the fractionation of the lignin as is the case of polyphenols. The operation was further developed using the residual without pre-treatment. The highest methane yield was obtained at 45:0.2 when using the residual without pre-treatment being with 277 mLCH4 gVS -1, for a methane productivity of 1.1 L L-1 d-1. When implementing the 30:0.2 ratio, a biomass washout was observed in the system, so it is recommended to operate at low OLR and high HRT when treating solid coffee wastes.
Effects of press- mud pre-treatment on the feasibility of biogas production
Authors: López González Lisbet Mailín , Pereda Reyes Ileana , Pedraza Gárciga Julio , Barrera Ernesto L. , Romero Romero Osvaldo
Published: May 2019

In this study, an energetic, economic and environmental feasibility for the anaerobic digestion (AD) of press mud previously pretreated with liquid hot water (LHW) or thermo-alkaline (TA) methods were assessed. A typical Cuban sugar mill was selected as ¨Case Study¨. The sugar mill has a potential capacity to process 4600 t d-1of sugar cane and operates 130 days per year. The biogas produced can be used to feed an internal combustion engine to produce electricity and heat. It was assumed that the electricity will be sold to the national electric grid and the heat recovered from the exhaust gases will be used as energy source to supply the thermal demand for press mud pre-treatments. The thermal requirements for pre-treatments (9.4 and 12.1 MWh d-1) were energy sufficient by recovering the heat from the engine exhaust. For the alternatives considered, an improvement of the environmental profile with respect to the reference scenario was obtained. The profitability of methane production also increased for alternatives considering pre-treatment. In general, the economical, energetic and environmental assessment showed the best indicators for the AD of press mud using LHW pre-treatment.
A linear regression pattern for electricity price forecasting in the Iberian electricity market
Authors: Ferreira Ângela Paula , Ramos Jenice Gonçalves , Fernandes Paula Odete
Published: May 2019

The Iberian Market for Electricity resulted from a cooperation process developed by the Portuguese and Spanish administrations, aiming to promote the integration of the electrical systems of both countries. This common market consists of organized markets or power exchanges, and non-organised markets where bilateral over-the-counter trading takes place with or without brokers. Within this scenario, electricity price forecasts have become fundamental to the process of decision-making and strategy development by market participants. The unique characteristics of electricity prices such as non-stationarity, non-linearity and high volatility make this task very difficult. For this reason, instead of a simple time forecast, market participants are more interested in a causal forecast that is essential to estimate the uncertainty involved in the price. This work focuses on modelling the impact of various explanatory variables on the electricity price through a multiple linear regression analysis. The quality of the estimated models obtained validates the use of statistical or causal methods, such as the Multiple Linear Regression Model, as a plausible strategy to achieve causal forecasts of electricity prices in medium and long-term electricity price forecasting. From the evaluation of the electricity price forecasting for Portugal and Spain, in the year of 2017, the mean absolute percentage errors (MAPE) were 9.02% and 12.02%, respectively. In 2018, the MAPE, evaluated for 9 months, for Portugal and Spain equals 7.12% and 6.45%, respectively.
Prediction of noise from wind turbines: theoretical and experimental study
Authors: Echeverri-Londoño Carlos Alberto , González Fernández Alice Elizabeth
Published: May 2019

Several noise propagation models used to calculate the noise produced by wind turbines have been reported. However, these models do not accurately predict sound pressure levels. Most of them have been developed to estimate the noise produced by industries, in which wind speeds are less than 5 m/s, and conditions favor its spread. To date, very few models can be applied to evaluate the propagation of sound from wind turbines and most of these yield inaccurate results. This study presents a comparison between noise levels that were estimated using the prediction method established in ISO 9613 Part 2 and measured levels of noise from wind turbines that are part of a wind farm currently in operation. Differences of up to 56.5 dBZ, with a median of 29.6 dBZ, were found between the estimated sound pressure levels and measured levels. The residual sound pressure levels given by standard ISO 9613 Part 2 for the wind turbines is larger for high frequencies than those for low frequencies. When the wide band equivalent continuous sound pressure level is expressed in dBA, the residual varies between −4.4 dBA and 37.7 dBA, with a median of 20.5 dBA.
Road safety assessment in preferential bus lanes through field analysis and microsimulation of traffic conflicts
Authors: Julián Otero-Niño Julián Darío , Heredia-Castiblanco Juan David , Fonseca-Agudelo Paula Daniela , Cabrera-Pinzón Sebastián , Gómez-Mosquera Alejandro , López-Buitrago Luis David , Sandoval-Ávila Francisco Julián , Ospina-Serrano Miguel Ángel , González-Mendoza Jhon Alexander , Lyons-Barrera Liliana , Bulla-Cruz Lenin Alexander
Published: May 2019

Preferential bus lanes are a widely use strategy to promote travelers to use public transport instead of private cars. Considering its relevance in the urban transportation planning and operation, it is crucial to evaluate them in terms of the operation and safety externality. We performed a road safety assessment in preferential public transport lanes with complex driving environment using a preventive approach on the 7 th Avenue, in Bogota (Colombia), between 39 th Street and 45 th Street. A detailed study of traffic conflicts was carried out under the guidelines of the Swedish technique, which uses the Time to accident and Conflicting speed to establish the severity of a conflict. A traffic conflict is defined as an incident where, if two road users on collision course maintain their speed and trajectory constant, the crash between them will be imminent. With the field information, we calibrated a VISSIM microsimulation model that correctly replicates its traffic operation. Using the SSAM tool, we validated the base model to identify the simulated traffic conflicts in VISSIM and compared them with the observed conflicts. Under the calibrated environment, we developed and assessed three different scenarios of countermeasures to reduce the number of conflicts observed. As a result, we found that the safest scenario is the one established in the regulations that normalize the operation in preferential lanes, currently not obeyed by most users. Based on our results, we recommend an adjustment in the normative measures, including regulating the stopping time and stopping zones of private vehicles and taxis.
Models of Actio Negatoria in the Law of Russia and European Countries
Authors: Podshivalov Tikhon
Published: May 2019

Actio negatoria is necessary in a situation wherein no one questions the ownership of an object by the owner, and the object remains in his possession, but someone exploits it without sufficient legal basis, treats it just as if he was endowed with the opportunity and the right to use someone else’s object. Despite the apparent simplicity of actio negatoria in the legislation of European countries, three models of this lawsuit have been developed, built according to the actio negatoria design that existed at different stages of the development of Roman private law – the common law model, the Roman model, and the German model. This study is based on the method of analysis of judicial practice and the method of comparative law. Based on the results of this study, we conclude that actio negatoria is not a universal method of protection. It is necessary to deviate from the principle of residual attention of the legislator to actio negatoria, residual, first of all, compared to rei vindicatio. Based on the analysis of the three models of actio negatoria that exist in the law of European countries, a new, fourth model of this lawsuit is proposed. Only an immovable object can be the subject of an actio negatoria dispute. Actio negatoria cannot be used to challenge the registered right to immovable objects. Actio negatoria can be used to protect the subjective right of property from a violation of ownership which is produced by interfering with possession and which does not result in dispossession.
REVIEW OF MODERN RUSSIAN PARTICIPATORY PRACTICES
Authors: REPINA Evgeniya A. , ZAKHARCHENKO Marina A.
Published: May 2019

The article provides a brief overview of some areas of participatory practices in Russian cities. Methods of interaction with citizens at diff erent levels, ways and possibilities of their involvement for the joint solution of tasks and problems in the city (from improvement of the yard to town-planning projects) are considered. Programs to support the initiatives of residents and urban development activists help in the implementation of projects to improve the urban environment. All kinds of training programs help in the study of the city structure, contribute to the understanding of its internal relationships, who and how aff ects the city. The probable positive and negative sides of the considered practices are revealed.
USE OF MONOLITHIC FOAM CONCRETE IN ENCLOSING STRUCTURES OF BUILDINGS AND STRUCTURES WITH VARIABLE THERMAL CONDITIONS
Authors: VYTCHIKOV Yury S. , SAPAREV Mikhail Ye. , GOLIKOV Vladislav A.
Published: May 2019

This article considers the features of the use of monolithic foam concrete as a heat-insulating layer in the building enveloping structures of buildings operated under intermitt ent heating conditions. To assess the eff ectiveness of the use of monolithic foam concrete in building enveloping structures, a thermal engineering calculation of the outer wall, insulated with the use of monolithic foam concrete, was carried out. Based on the calculations carried out by the authors, graphs of the dependence of the heating time of multilayered enclosing structures on the thickness of the heat-insulating layer and the reduced resistance to heat transfer of the structure were obtained. The optimum range of thicknesses and densities of monolithic foam concrete for thermal insulation of external walls of buildings, operated in conditions of intermitt ent heating, is off ered. This calculation also showed that the use of foam concrete as a heater from the inside of the outer wall can reduce the load on the foundation of the building.
SOCIO-CULTURAL PHENOMENON OF HISTORICAL TERRITORIES. WOODEN FORTRESS OF SAMARA
Authors: MALYSHEVA Svetlana G. , SHLIENKOVA Elena V.
Published: May 2019

The architectural and planning features of wooden fortresses of the city of Samara, built next to each other with a time interval of 120 years, are considered. The origins of one of the unique spatial characteristics of Samara, a special historical code of development of its territory, are analyzed, when at each new stage of development in the city a new center was formed with a consistent movement higher and higher along the watershed from the arrow of the Volga and Samara rivers. The emergence of this spatial expansion is justifi ed by the construction of a second wooden fortress as a new urban center, but not in the place of the burnt fi rst fortress, but in the neighboring territory after 200 m. Since at the moment both fortresses have not survived, with the exception of basement fragments , the authors analyze the possibilities of a new reading of the “memory of the place” and the restoration of the cultural and genetic code of the city that was lost in due time. The article proposes an algorithm for the development and subsequent comprehensive implementation of the historical and cultural strategy of urban development, based on the creation of unique models of public spaces that can connect the past and the present in a new spatial paradigm. The concept of an interactive platform is considered with the aim of promoting a sociocultural project and drawing public att ention to the problem of the irretrievable loss of the historical and cultural heritage.
INTEGRATED DISINFECTION DEVICE OF AGRICULTURAL DRAINS
Authors: BULAT Anatoly D. , FILENKOV Vladimir M. , OBRUBOV Vladimir A. , SELEZNEV Vladimir A. , LUSHKIN Igor A.
Published: May 2019

Studies of the electro-technological treatment of waste water of large livestock farms indicate the possibility of integrated implementation of the principles of hydrodynamic, electromagnetic, electrochemical and bioenergetic disinfection of objects infected with pathogenic microorganisms in the electro- technological installation (ETI). Improving the effi ciency of decontamination by means of ETI indicates the promise of this approach from the standpoint of energy, environmental and resource conservation, its transfer will signifi cantly reduce the man-made burden on the environment and ensure the required level of environmental safety of the population and staff .
THE IMPORTANCE OF MARINE SHORES CADASTRE FOR THE MANAGEMENT AND RATIONAL NATURE USE IN THE COASTAL ZONE OF UKRAINIAN SEAS
Authors: Pankratenkovа Daria
Published: May 2019

The aim of the research is devoted to reveal the importance of creating an inventory of sea coasts for the effective management and rational use of natural resources in the coastal shore zone of Ukrainian seas.

Methods. The development and materials of domestic and foreign authors formed the methodological basis of the research. In the course of writing research methods as retrospective, systematization method, analytical and constructive-geographical were used.

Research results. The article presents the theoretical foundations and elements that the cadastre of sea coasts should contain. The basic principles of the sea coast cadastre were proposed and substantiated to optimize economic activities and preserve the natural environment in the coastal zone of the seas of Ukraine.

The scientific novelty of the results obtained consists in the development of the foundations of the cadastre of seashores, which are a qualitatively new step of generalization and registration of data on the current state of the coastal zone. Thus, the cadastre is a necessary information source for making important decisions regarding the management of economic activities for the harmonization of the relationship between nature and society.

Practical value. The results of the study constitutes an important information base for the creation of legislative projects that regulate all types of anthropogenic impact on the coastal zone for the organization of effective management and environmental management of coastal areas.
Razão dos sonhos
Authors: Poenaru Vlad Eugen
Published: May 2019

Razão dos sonhos
Memória e pós-memória da Shoah: um olhar autobiográfico
Authors: Topel Marta Francisca
Published: May 2019

O artigo indaga nas múltiplas variáveis que entram em jogo na construção e análise de narrativas da segunda e terceira geração de sobreviventes do Holocausto. Nesse afã, a autora apresenta um texto autobiográfico, que incluiu documentos pessoais como cartas e fotos, para só depois discutir novos critérios e categorias entre os quais as discussões ao redor da possibilidade de existir uma pós-memória do Holocausto tem papel fundamental.
Literatura e escrita autobiográfica como registro de experiências sensíveis: a trajetória de Sioma Breitman
Authors: Lia Cristine Fortes , Ruffato Katani Maria Monteiro
Published: May 2019

Este artigo analisa alguns aspectos da autobiografia de Sioma Breitman e sua contribuição para a compreensão do processo de imigração judaica, para o sul do Brasil, no início do século XX. Breitman produziu um registro sensível de sua trajetória como migrante da Ucrânia para o estado do Rio Grande do Sul, explorando diferentes aspectos da experiência de emigrar e as estratégias de adaptação para a permanência em uma nova realidade. Em sua escrita, está presente muitas das sensibilidades judaicas da imigração, parcamente retratadas pela historiografia oficial sobre essa temática. Os estudos migratórios, cada vez mais, se ocupam de fontes de natureza sensível, como a narrativa produzida por Breitman. Assim, por meio de uma escrita de si, busco identificar novas abordagens e interpretações sobre o processo imigratório judaico e seus sujeitos.
Quando Amós Oz chegou ao Brasil
Authors: Rozenchan Nancy
Published: May 2019

Quando Amós Oz chegou ao Brasil
No ventre, Jacó e Esaú
Authors: Grzybowski Adam , Goldman Luis
Published: May 2019

No ventre, Jacó e Esaú
Depois de Auschwitz
Authors: Amichai Yehuda
Published: May 2019

Depois de Auschwitz

Tradução: Moacir Amâncio.
O último Shabat de Oliver Sacks
Authors: Rodrigues Breno Fonseca
Published: May 2019

Resenha a: SACKS, Oliver. Gratidão. Trad. Laura Teixeira Motta. São Paulo: Companhia das Letras, 2015. 58p.
Anne Frank e Michel Laub: os diários e a violência cotidiana
Authors: Menezes Filipe Amaral Rocha de
Published: May 2019

O diário de Anne Frank (em holandês Het Achterhuis, de 1947) é um dos relatos mais instigantes produzidos no contexto da Shoah. Elaborado a partir dos manuscritos de uma adolescente judia alemã na Holanda, durante uma perseguição nazista, o livro é uma grande referência para a literatura mundial, especialmente para a Literatura do Testemunho. Diário da queda (2011), romance do escritor brasileiro Michel Laub, gira em torno de três gerações de uma família judia: o avô do narrador, impulsionado pela experiência de ter sido preso em Auschwitz; o pai do narrador, que carrega as lembranças amargas do suicídio do pai quando tinha apenas quatorze anos; e o filho, o narrador, que carrega consigo a culpa de ter causado acidentalmente um acidente que feriu um colega de classe e suas consequências, quando ele era adolescente. O diário como um gênero, aqui em debate, emerge de um texto monólogo cujo autor seria seu único leitor, em meio as suas características comunicativas e literárias do íntimo, da individualidade, elementos estes não mais considerados. Desse gênero, no entanto, emerge a noção de autoficção, ou mesmo a escrita de si, um gênero ambivalente em que o autor questiona a realidade e a si mesmo. A partir da comparação desses dois diários, um testemunhal e outro ficcional, em suas abordagens, aproximações e distâncias, pretende-se analisar a violência cotidiana neles impregnada.
Effect of hyaloclastite breccia boulders on meso-scale periglacial-aeolian landsystem in semi-arid Antarctic environment, James Ross Island, Antarctic Peninsula
Authors: Kňažková M. , Hrbáček F. , Kavan J. , Nývlt D.
Published: May 2019

In this study we aim to describe the processes leading to the creation of a specific periglacial and aeolian landsystem, which evolves around the hyaloclastite breccia boulders on James Ross Island, north-eastern Antarctic Peninsula. These boulders were deposited as a result of the Late Holocene advance of Whisky Glacier, forming a well-developed boulder train approximately 5-km long, stretching from Whisky Glacier moraine to Brandy Bay. The combination of ground temperature monitoring, snow cover measurements, grain size analysis and field survey were used to quantify and understand the interplay of periglacial and aeolian processes leading to the formation of the specific meso-scale landsystem around the boulders. The ground temperature probes were installed during January 2017 in the vicinity of two selected boulders. The two study sites, at Monolith Lake (large boulder) and Keller Stream (smaller boulder), were also fitted with snow stakes and trail cameras. An automatic weather station (AWS) on the Abernethy Flats, located approximately two kilometres to the north-west, was used as a reference site for ground temperature and snow cover thickness. The hyaloclastite breccia boulders act as obstacles to wind and trap wind-blown snow, resulting in the formation of snow accumulations on their windward and lee sides. These accumulations affect ground thermal regime and lead to the transport of fine particles by meltwater from the snow during the summer season. The snow cover also traps wind-blown fine sand resulting in the formation of fine-grained rims on the windward and lee sides of the boulders after the snow has melted. Furthermore, the meltwater affects ground moisture content, creating favourable, but spatially limited conditions for colonisation by mosses and lichens.
Tympanoplasty with and without cortical mastoidectomy in treatment of inactive mucosal chronic otitis media
Authors: Aggarwal Divya , Vemu Sandeep , Kapur Sunil
Published: May 2019

Background: Tympano-mastoidectomy has been found to be an effective method of treatment of chronic ear infection, but the effect of mastoidectomy on patients without evidence of active infectious disease in mastoid remains highly debated and unproven. Analyse the surgical outcomes of repair of uncomplicated tympanic membrane perforations with tympanoplasty alone and tympanoplasty combined with mastoidectomy.

Methods: The present study was a prospective, comparative, randomized controlled trial in which 60 patients 30 in each groups via simple random sampling technique underwent tympanoplasty with cortical mastoidectomy. Temporalis fascia was used as graft in all the cases. All the surgeries were done by post aural route and underlay technique was used in all cases.  

Results: The overall graft uptake rate in our study was 88.33%. The graft uptake rate in tympanoplasty group was 87% and 90% in the tympanoplasty with cortical mastoidectomy group. There was no significant difference in the graft uptake rates of the two groups. There was no statistical significance between the two groups as p>0.05, suggesting that mastoidectomy when combined with tympanoplasty offers no benefit over tympanoplasty alone. There was no significant difference in hearing gain between the two groups as p value obtained was >0.05.

Conclusions: Tympanoplasty alone is sufficient in patients with chronic inactive mucosal otitis media, as the results of the graft uptake and hearing improvement show no significant difference between the tympanoplasty group and the tympanoplasty with cortical mastoidectomy group.
Impact of Home-to-Centre Distance on Bone Marrow Transplantation Outcomes
Authors: Al Naabi Malak , Al Khabori Murtadha , Al-Huneini Mohammed , Al-Rawas Abdulhakeem , Dennison David
Published: May 2019

Objectives: Haematopoietic stem cell transplantation (HSCT) in Oman started in 1994 at Sultan Qaboos University Hospital (SQUH), Muscat, Oman. Previous studies have suggested that longer driving time to the transplant centre (DTC) independently correlates with worse overall survival (OS). Therefore, this study aimed to examine the impact of DTC on OS and acute graft-versus-host disease (aGvHD). Methods: This retrospective study included all patients who underwent HSCT between February 2006 and December 2016 at SQUH. The DTC was determined using Google Maps (Google LLC., Mountain View, California, USA). The probability of OS was estimated using a Kaplan-Meier estimator and the impact of DTC on OS was compared using a Cox model. Results: A total of 170 patients were included in this study of which 52% were male and 28% were from the Al Batinah region. The mean age was 14.2 ± 12.2 years. The mean haemoglobin, platelet and white blood cell counts before the HSCT were 10.3 ± 1.7 g/dL, 207 ± 131 × 109/L and 5.1 ± 5.9 × 109/L, respectively. The median DTC for those with aGvHD was 84 minutes, which is similar to patients without aGvHD (P = 0.918). The hazard ratio for DTC as a predictor of OS was 1.0 (P = 0.901). Conclusion: In this single centre study, DTC did not impact aGvHD or OS in patients post-HSCT. The study was limited by its retrospective design and the small sample size. It is recommended that these results be confirmed in a prospective study. Keywords: Hematopoietic Stem Cell Transplantation; Graft Versus Host Disease; Survival Analysis; Travel; Oman.
Medical Graduates’ Research Practices and Perceptions: A comparative cross-sectional study between 2015 and 2017 graduates of King Abdulaziz University
Authors: Basakran Ahmed M. , Banjari Maysaa A. , Almarghoub Malak A. , Alzarnougi Elaf M.
Published: May 2019

Objectives: This study aimed to compare changes in medical students’ research practices and perceptions of two cohorts of graduates. Methods: This cross-sectional comparative study was conducted from November 2014 to December 2017 and included the 2015 and 2017 medical graduates of King Abdulaziz University, Jeddah, Saudi Arabia. A validated self-administrated questionnaire, which included questions about participants’ age and gender, research activities, and obstacles to and motivators for research involvement was used. Results: A total of 484 graduates were included in this study (response rate: 96.8%). A significant difference was found between the 2015 and 2017 graduates who had not started any research project (48.4% versus 35%; P <0.001) and a 20% increase in the 2017 graduates’ confidence in their abilities to start their own projects was observed (P <0.001). Significantly more 2017 graduates were engaged in various research roles, other than 'author', compared to 2015 graduates (71.3% versus 55.4%; P <0.001). Career progression was the main motivator for both the 2015 and 2017 medical graduates to participate in research (79.5%). Reported obstacles to research included a lack of dedicated time for research and methodology training and a shortage of research project opportunities. Conclusion: This study highlights positive changes in attitudes towards and perceptions of research among medical graduates.Keywords: Medical Students; Research; Professional Practice; Attitude; Perception; Medical Education; Saudi Arabia.
DETERMINING THE LEVEL OF STUDENTS’ RESEARCH SKILLS AND DESIGN THE MODEL OF INFLUENCING FACTORS ON RESEARCH SKILLS
Authors: Ilyashenko Lubov k.
Published: May 2019

Purpose of Study: The main purpose of this research was to determine the level of research skills of students and design the model of the factors influencing it. This analytical-descriptive research was carried out in two stages. First, the level of skill and ability of students was obtained and then, based on interviews with them, factors affecting their skill level were obtained in the form of a pattern.

Methodology: To do this research, first, the student's ability to research was studied to determine the status quo. To this end, a researcher-made questionnaire was designed to assess students' ability to research in four areas of knowledge of the components of scientific research, knowledge of types of scientific research, the ability to produce a scientific research proposal and the ability to perform and report scientific research. According to their answerers, their ability to be classified into three levels of limited, acceptable and advanced categorization.

Results: The results showed that more than 50% of students with a low level of satisfaction are eligible for the practical implementation of research. Also, the pattern showed that students, school and teachers, and parents are effective at their level of ability to do research.

Implications/Applications: After the implementation of the questionnaires, the results were shared with the participants and interviewed about the reasons and factors affecting their level. After the interview, repetitive clauses were identified and with the help of Max software, the pattern was designed.
ORGANIZATION OF EDUCATIONAL ACTIVITIES OF VOLUNTEERS AS A SOCIAL AND EDUCATIONAL PROJECT
Authors: Vaganova Olga I. , Smirnova Zhanna V. , Kamenez Natalia V. , Bulaeva Marina N. , Kutepov Maxim M.
Published: May 2019

Purpose of Study: The article is devoted to the study of the organization of educational activities of volunteers as a social and educational project. It is established that the strategic goal of the new generation of Federal-state educational standards is the formation of graduates ' competences. A framework of competence approach helps to gradually transfer the student from learning activities to his future professional activities. In this article, the authors identify the activities of volunteers as one of the ways to adapt students to real working conditions. The article reveals the essence of volunteer activity, which allows to acquire new and improve existing competencies as a social and educational project. In the Nizhny Novgorod State Pedagogical University named after KozmaMinin, the development of volunteer activities proceeds through the work of The center "territory of opportunities", implemented within the framework of the project "Social and educational environment", in which a sufficient number of stakeholders are involved, providing students with the opportunity for further employment. The article also highlights the activities carried out by the Center, for which volunteer students are offered a lot of special courses (social design, robotics, ZD-modeling). On the basis of the revealed facts, the positive effect of volunteer activity for all participants of this process is established.

Methodology: The paper presents an analysis of employed student volunteers. As practice shows, students engaged in volunteer activities, quickly enough to get a job in the profession, unlike students who do not have the experience of volunteering. 49% of volunteers work on a permanent or partial basis, while students without volunteer experience employ only one in three students (33%) [Pavlov, Kindaev, Vinnikova, & Kuznetsova, (2016)]. In order to identify the positive impact of this activity on the development of students as professionals, we have shown the activities Of the center "territory of opportunities", which operates in the Nizhny Novgorod state pedagogical University named after KozmaMinin.

Results: Results showed ha students engaged in volunteer activities are more satisfied with their leisure time compared to ordinary students. In addition, the study showed that those students who have devoted their time to participate in volunteer activities are employed much faster than students who have not engaged in volunteering.

Implications/Applications: The higher education institutions should make every effort to improve the conditions in which volunteer activities are carried out and offer ample opportunities for the development of the student's personality because students can easily employ both in the learning process and after graduating from high school.
Formation of a Defective Layer when Machining Brittle Materials
Authors: Zhukov Y.N. , Tikhonov I.N. , Ogorodnikov A.I.
Published: May 2019

Parts made of modern brittle materials with high quality finish are widely used in manufacturing of optical and electronic devices as well as crucial assemblies in mechanical engineering products. Diamond machining enables generation of geometry without affecting the functional surface layers by heat. At the same time, brittle material cutting is accompanied by the formation of a defective layer on the machined surface due to the structural disturbances in the material caused by the applied cutting force. The paper discusses causes and the mechanism of the defective layer formation on the machined surface during non-free cutting of brittle materials and examines ways of reducing the size of the defective layer. Theoretical and computer-aided analysis is performed to determine the impact of the local stresses field in the zone of concentrated pressing force acting on the brittle plate surface. Using experimental methods, a defective layer formed after cutting notches on a silicon plate by a diamond tool is studied.
A Model of Cylindrical Gear Failures Using the Criterion of the Working Surface Wear Resistance
Authors: Antsupov A.V. , Antsupov A.V. , Antsupov V.P. , Slobodianskii M.G.
Published: May 2019

Cylindrical gear failure due to tooth wear is one of the most common reasons for the decreased technical and economic indicators of various units resulting from the forced downtime for gear replacement or repair. Nowadays, the linear wear rate, an indicator that is found experimentally, is used to determine gear service life based on the statistical linear dependence of the wear on the friction forces. The determination of this indicator requires a large amount of data on the wear obtained with real transmissions or relevant laboratory samples that increases time and financial costs. Therefore, an analytical model of wear failures has been developed for project estimation of gear service life and the search for effective and lasting design solutions. The model represents a system of constitutive equations, which includes an energy equation describing the change in the current state of a pair of wear gear wheels and the conditions for their transition to the limiting state, a basic kinetic dependence of the energy-mechanical theory of stationary tribocoupling wear, and an equation for determining the transmission’s expected service life. The simultaneous solution of this system of equations taking into account the dependencies that describe the initial and boundary conditions of the gear element interaction resulted in the formulation of the algorithm for calculating their average expected service life. This allowed the authors to perform a comparative analysis of the effectiveness of various design options for improving gear durability and select the most appropriate ones. A distinctive feature of the proposed calculation algorithm is that it does not involve searching for experimental parameters similar to the linear wear rate.
A Study of the Influence of the Boundary Conditions Type on Integral Characteristics of a Bench Coiled Heat Exchanger
Authors: Frantsuzov M.S. , Lopukhov S.A. , Koroleva A.P.
Published: May 2019

A study of the influence of the boundary conditions type on such integral characteristics of a bench coiled heat exchanger as temperature and pressure fluctuations is presented in this paper. The change in the integral characteristics in the annular space of the heat exchanger was determined when specifying the equivalent boundary conditions of the first, second and third types. For the studied geometric model of the heat exchanger, numerical simulation was carried out in a wide range of Reynolds numbers taking into account the real thermal properties of the air. The fields of temperature, pressure and current density distribution in the annular space of the heat exchanger were obtained.