bluuebunny/crossref_metadata_2025 huggingface dataset:
ПОВЫШЕНИЕ КВАЛИФИКАЦИИ ПЕДАГОГИЧЕСКИХ И РУКОВОДЯЩИХ РАБОТНИКОВ ОБРАЗОВАТЕЛЬНЫХ ОРГАНИЗАЦИЙ РЕСПУБЛИКИ АДЫГЕЯ В УСЛОВИЯХ РЕАЛИЗАЦИИ НОВЫХ СТАНДАРТОВ
Authors: Shekhmirzova Andzhela Muharbievna , Gribina Lyudmila Vladislavna , Tuguz Fatima Anzaurovna
Published: October 2017

В условиях введения стандартов нового поколения, перед российскими образовательными организациями встали задачи, связанные с модернизацией системы повышения квалификации педагогических и руководящих работников.Изучение состояния образовательной практики повышения квалификации педагогических и руководящих кадров к осуществлению инновационной деятельности в соответствии с требованиями новых стандартов, показало, что она не может гибко реагировать на изменения запросов современного социума и обеспечить высокое качество образования. Основные причины практических затруднений связаны с отсутствием целостной системы повышения квалификации педагогических и руководящих работников общего и профессионального образования к реализации требований стандартов нового поколения при условии координированного их коллективного взаимодействия.Цель исследования – представление инновационной модели повышения квалификации педагогических кадров и руководящих работников системы общего и профессионального образования на территории Республики Адыгея, ориентированной на обеспечение их готовности к реализации требований новых стандартов с учетом Национальной системы учительского роста.Метод или методология проведения работы: в статье представлен комплекс теоретических и эмпирических методов педагогического исследования.Результаты: в контексте инновационной модели выявлены уровни готовности педагогических и руководящих работников системы общего и профессионального образования на территории Республики Адыгея к инновационной деятельности по реализации требований стандартов нового поколения с учетом Национальной системы учительского роста.Область применения результатов: результаты проведенного исследования могут послужить основой управленческой стратегии образовательных организаций на территории Республики Адыгея при решении актуальных задач по реализации планируемых результатов обучения в соответствии с требованиями новых стандартов и повышения качества общего и профессионального образования.
Super Bowl Ads
Authors: Hartmann Wesley R. , Klapper Daniel
Published: October 2017

We explore the effects of television advertising in the setting of the National Football League’s Super Bowl telecast. The Super Bowl is well suited for evaluating advertising because viewers pay attention to the ads, more than 40% of households watch the game, and variation in ad exposures is exogenous because a brand cannot choose how many impressions it receives in each market. Viewership is primarily determined based on local preferences for watching the two competing teams. We combine Super Bowl ratings data with weekly sales data in the beer and soda categories to document three primary findings about advertising. First, the relationship between Super Bowl viewership and sales in the week leading up to the game reveals the brands customers buy to consume during the game. We find some brands are consumed while watching the game while others are not, but this is unrelated to whether a brand ever advertised during the Super Bowl or advertises in a specific year. This rejects the theory that advertising works by serving as a complement to brand consumption. Second, we find that post–Super Bowl sales effects of ad viewership are concentrated in weeks with subsequent sporting events. This suggests Super Bowl advertising builds a complementarity between the brand and sports viewership more broadly. Finally, we collect data on National Collegiate Athletic Association basketball tournament viewership to test this theory and find that the complementarity between a brand’s sales and viewership of the tournament is enhanced by Super Bowl ad viewership. Together, these findings identify advertising as a determinant of why some brands outperform others for particular consumption occasions such as sports viewership.

Data are available at https://doi.org/10.1287/mksc.2017.1055 .
OM Forum—Causal Inference Models in Operations Management
Authors: Ho Teck-Hua , Lim Noah , Reza Sadat , Xia Xiaoyu
Published: October 2017

Operations management (OM) researchers have traditionally focused on developing normative mathematical models that prescribe what managers and firms should do. Recently, there has been increased interest in understanding what managers and firms actually do and the factors that drive these decisions. To advance this understanding, empirical investigation using causal inference models is critical. However, in many contexts, the ability to obtain causal inferences is fraught with the challenges of endogeneity and selection bias. This paper describes five empirical tools that have been widely used in economics to address these challenges and how they can be adopted by OM researchers. We also present an example that illustrates how the various attributes of big data—variety, velocity, and volume—can be useful in addressing the endogeneity bias.

The online appendix is available at https://doi.org/10.1287/msom.2017.0659 .
Improving patient care: expert nursing and service development
Authors: Ryan Claire
Published: October 2017

Early access to a clinical nurse specialist will ensure that patients receive the interventions and support they need. Optimum outcomes will be achieved if specialists work in collaboration with a wider team
Introduction
Authors: Ryan Claire
Published: October 2017

Metastatic breast cancer (MBC), also known as secondary breast cancer (SBC), occurs when cells from the primary breast tumour metastasise from the breast to other parts of the body via the blood or lymphatic systems. The disease may range from limited bone metastases to widespread and life-threatening metastases in visceral organs such as the liver, lung and brain (National Institute for Health and Care Excellence (NICE), 2009; 2014). MBC is incurable, and the primary goal of treatment is to extend life and palliate symptoms, while preserving quality of life (NICE, 2009; 2014).
Mast Cell Mediators Inhibit Osteoblastic Differentiation and Extracellular Matrix Mineralization
Authors: Maximiano William Marcatti Amarú , da Silva Elaine Zayas Marcelino , Santana Ana Carolina , de Oliveira Paulo Tambasco , Jamur Maria Célia , Oliver Constance
Published: October 2017

Mast cells are multifunctional immune cells that participate in many important processes such as defense against pathogens, allergic reactions, and tissue repair. These cells perform their functions through the release of a wide variety of mediators. This release occurs mainly through cross-linking IgE (immunoglobulin E) bound to high affinity IgE receptors by multivalent antigens. The abundance of mast cells in connective tissue, surrounding blood vessels, and their involvement in the early stages of bone repair support the possibility of physiological and pathological interactions between mast cells and osteoblasts. However, the participation of mast cell mediators in osteogenesis is not fully understood. Therefore, the objective of this work was to investigate the role of mast cell mediators in the acquisition of the osteogenic phenotype in vitro. The results show that pooled mast cell mediators can affect proliferation, morphology, and cytoskeleton of osteoblastic cells, and impair the activity and expression of alkaline phosphatase as well as the expression of bone sialoprotein. Also, mast cell mediators inhibit the expression of mRNA for those proteins and inhibit the formation and maturation of calcium nodules and consequently inhibit mineralization. Therefore, mast cell mediators can modulate osteogenesis and are potential therapeutic targets for treatments of bone disorders.
IMPLIKASI KEBIJAKAN MORATORIUM TERHADAP SEKTOR PERIKANAN DI BITUNG
Authors: Rahmayanti Atika Zahra , Cahyono Bintang Dwitya , Nadjib Mochammad
Published: October 2017

Kebijakan moratorium sebagai salah satu gebrakan dalam Pemerintahan Jokowi – JK, memiliki dua sisi mata koin. Pada satu sisi, kebijakan ini menguntungkan bagi nelayan kapal kecil dimana fishing ground menjadi lebih dekat dan ikan relatif lebih mudah didapat sehingga biaya operasional terutama untuk bahan bakar dan perbekalan berlayar dapat ditekan. Tentu saja kondisi tersebut menunjukkan peningkatan dari segi kesejahteraan nelayan.

Di sisi lain, bagi unit usaha pengolahan ikan (UPI), kebijakan moratorium membuat operasionalisasi perusahaan terganggu. Pasalnya supply bahan baku menjadi berkurang drastis akibat larangan operasi bagi kapal di atas 30 GT dan kapal eks asing. Dengan tidak adanya bahan baku yang diproses, otomatis banyak pekerja yang di rumahkan. Terlebih lagi banyak kapal-kapal besar yang akhirnya terbengkalai akibat tidak bisa beroperasi dan satu UPI di Bitung mengalami gulung tikar.  Sebagai jawaban atas gejolak tersebut, akhir Bulan April, Kementerian Kelautan dan Perikana memberlakukan skema kebijakan penangkapan ikan dalam satu kesatuan operasional. Kebijakan ini tertuang dalam Perdirjen PT No.1/Per-DJPT/2016. Kebijakan ini merupakan solusi untuk menjawab kebutuhan UPI di Bitung. Artikel ini bersumber dari penelitian, Optimalisasi Pemanfaatan Sumberdaya Kelautan dan Perikanan Dalam Konteks Global: Infrastruktur Pendukung Peningkatan Daya Saing Sektor Perikanan”. Metode yang digunakan merupakan metode kualitatif dengan teknik pengumpulan data secara primer maupun sekunder. Implikasi kebijakan moratorium menimbulkan efek langsung baik bagi nelayan, pelaku usaha (UPI) maupun kondisi di Pelabuhan Perikanan Bitung. Namun kebijakan ini merupakan salah satu cara untuk mewujudkan kedaulatan maritim dan meningkatkan kesejahteraan nelayan kecil.
How Does The Milk Processing Industry in Indonesia Develop Their Technological Capability?
Authors: Triyono Budi , Laksani Chichi Shintia , Zulhamdani Mohammad , Siahaan Saut H
Published: October 2017

Increasing public awareness of the importance of milk consumption and the increasing population of Indonesia make milk as an economic commodity that has a strategic value. The purpose of this study are to analyse the technological capabilities dairy processing industry in Indonesia and to understand how the company builds its technological capabilities. This research was conducted through case studies on some of the milk processing companies in Java classified by the ownership of capital are cooperative, local company and foreign company. The results showed differences in technological capabilities. The highest technological capabilities shown by foreign companies and the large-scale local companies. Meanwhile, a technological capability of dairy cooperatives is still low. By categories, mechanisme of technological capability development also different. Technological capabilities in dairy cooperatives conducted through internal efforts that do not involve external parties. Meanwhile, thelarge-scale local companies and foreign companies developed their technology capabilities by involving external partiess such as R & D institutions and foreign parties.
Agronomic descriptors and ornamental potential of passion fruit species
Authors: Nóbrega Daiane Da Silva , Peixoto José Ricardo , Vilela Michelle Souza , Faleiro Fábio Gelape , Gomes Karolline De Paula Silva , De Sousa Rosa Maria De Deus , Nogueira Isadora
Published: October 2017

Brazil has great variability, being one of the centers of origin of the genus Passiflora. Passion fruit has a multiple and diversified uses, being little explored as an ornamental plant in the country. The objective of this work was to characterize four passion fruit genotypes (two hybrid materials from the experimental field of passion fruit breeding program of the University of Brasília, and two passion fruit cultivars - BRS Sertão Forte and BRS Mel do Cerrado, both of them from Brazil), based on official and validated morphoagronomic descriptors for the identification of morphological aspects and ornamental potential, under field conditions, in the Distrito Federal, Brazil. The experiment consisted of a randomized block design, with four treatments, four replications, and six plants per plot. Plants were analyzed weekly regarding the characteristics of the branches, leaf blade, petiole, and flowers, with 24 measurements of each structure in the four treatments, which were recorded using a digital camera. Flowers presented pronounced size and color, colored branches, and leaves of varying sizes and shapes. All materials studied showed commercial ornamental potential to be explored as new options for ornamental climbing plants.
Editorial to Special Interview Issue
Authors: Totev Borimir
Published: October 2017

It has been both a great challenge and an incredible honour to work on SLOVO Journal during such a thriving year for our awareness of Russian history and culture, marking the centenary of the Russian Revolution, but also a year that has tested the academic community’s ability to come together and defend its right to academic freedom. In the past year, we have produced two pronounced issues under VOL. 29 of SLOVO Journal, concentrating on the publication of interdisciplinary academic work of the highest standard. As an exclusively self-managed postgraduate project, and a unique part of the UCL Press family, we continue to provide some of the freshest insight into the Russian, East & Central European and Eurasian regions to our global readership. I’d like to repeatedly thank this year’s Editorial Board and the School of Slavonic and East European Studies for the precious amounts of time and dedication offered to SLOVO Journal. 
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Interview with Prof. Alena Ledeneva: Thriving on the Fringe
Authors: Ledeneva Alena
Published: October 2017

INTERNATIONALLY RENOWNED EXPERT ON INFORMAL GOVERNANCE IN RUSSIA, PROFESSOR ALENA LEDENEVA, IN CONVERSATION WITH SLOVO’S EXECUTIVE EDITOR BORIMIR TOTEV.
Alena Ledeneva is a Professor of Politics and Society at the School of Slavonic and East European Studies, University College London. Her research interests include corruption, informal economy, economic crime, informal practices in corporate governance, and role of networks and patron-client relationships in Russia and around the globe. Her books ‘Russia's Economy of Favours: Blat, Networking, and Informal Exchange’ (Cambridge University Press, 1998), ‘How Russia Really Works: Informal Practices in the 1990s’ (Cornell University Press, 2006), and ‘Can Russia Modernize? Sistema, Power Networks and Informal Governance’ (Cambridge University Press, 2013) have become must-read sources in Russian studies and social sciences. She received her PhD in Social and Political Theory from Cambridge University. Currently, she is the pillar leader of the multi-partner ANTICORRP.eu research project and also works on the Global Encyclopaedia of Informality, The Global Informality Project, and the FRINGE CENTRE: Centre for the Study of Social and Cultural Complexity. 
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Interview with Prof. Jan Kubik: The FATIGUE Project
Authors: Kubik Jan
Published: October 2017

SCIENTIST-IN-CHARGE AND MANAGING DIRECTOR OF THE FATIGUE PROJECT, PROFESSOR JAN KUBIK, IN CONVERSATION WITH SLOVO’S EXECUTIVE EDITOR BORIMIR TOTEV. 
Prof. Jan Kubik was the Director of the School of Slavonic and East European Studies between January 2015 and August 2017, as well as Pro-Vice Provost for Europe at University College London. Kubik works on the interplay between power (politics) and culture, protest politics and social movements, and post-communist transformations. He also writes about qualitative methods in the social sciences. His first and one of the most recent books, ‘The Power of Symbols against the Symbols of Power’ (Penn State Press) and ‘Anthropology and Political Science’ (Berghahn, with Myron Aronoff) are the best exemplifications of his approach. Kubik studies politics and culture comparatively, but the principal source of his observations and data are Poland and East Central Europe. Since 1991 he has taught in the Department of Political Science at Rutgers University, where he once served as the Chair. He has lectured around the world and has held several prestigious teaching posts and fellowships, including the Graduate School of Social Sciences, Polish Academy of Sciences.
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Psychische Erkrankungen in der Arbeitswelt
Authors: Alsdorf Nora , Engelbach Ute , Flick Sabine , Haubl Rolf , Voswinkel Stephan
Published: October 2017

Welche Arbeitssituationen sind psychisch belastend? Wie gehen Organisationen mit psychischen Erkrankungen um? Und wie wird die Erwerbsarbeit in Therapien thematisiert? Die Autor_innen analysieren Fälle psychisch erkrankter Beschäftigter interdisziplinär und zeigen auf, welche Verbesserungsmöglichkeiten es an den Schnittstellen von Gesundheitssystem und betrieblicher Wiedereingliederung gibt.
Estimation of direct normal irradiance under various sky condi-tions in data sparse tropical ecological zones in Nigeria
Authors: Nwokolo Samuel , Ogbulezie Julie
Published: October 2017

In this study, models for estimating direct normal irradiance (Hb) under various sky conditions in data sparse tropical ecological zones in Nigeria were fitted. The evaluated values of clearness index indicate that the prevailing sky condition in the southern tropical zones is heavily overcast while the northern zones experience partly overcast under all sky conditions. From the analyses of the influences of clearness index on Hb, it was observed that higher values of Hb were recorded in the far north zone of Sahel savannah (FNZSS) of Sokoto while lower values were registered in the far south zone of mangrove swamp of Port Harcourt revealing an increasing trend from FSZMS to FNZSS due to the trends in cloudiness and associated atmospheric moisture with the movement through the Hadley cell calculation system along the equatorial line. The regression correlation models developed from the model performance test indicates that the proposed models could be used to estimate Hb accurately between latitude 4 to 10oN, that is, mangroves swamp and Guinea savannah tropical zones in Nigeria and other locations with comparable sky conditions.
Investigation of volatility and spillover in foreign ex-change return in Indian Chinese & Malaysian market
Authors: Mishra Amritkant
Published: October 2017

In this paper it is tried to make the comparison the foreign exchange return volatility in the three emerging economies of Asia. It is also endeavored to investigate the return co-movement and the volatility spillover between the foreign exchange markets of India, China and Malaysia with reference of US dollar, Indian Rupees, Chinese Yuan and Malaysian Ringgit in each other foreign exchange market to. The daily data have collected from Federal Reserve data base from April 2012 to March 2017. For analysis MGARCH model, the GARCH DCC as well as VAR model applied. The empirical result of volatility spillover effect shows that in Indian and Malaysian foreign exchange market the US dollar seems as shock transmitter. It also shows that the influence of US dollar in Chinese foreign exchange market is very low as compare to the Indian and Malaysian exchange rate market. In Chinese market Malaysian ringgit is dominant currency and it transmits the shocks to the US dollar. The conditional volatility result shows that among all the foreign exchange market, Indian market has high volatility return of foreign currency as compare to other market.
‘Nam generation. Veteranos de Vietnam: Juventud, desigualdad social y cultura de la desmovilización en Estados Unidos
Authors: Soler Ruda Albert
Published: October 2017

Este artículo gira en torno a la idea de la construcción de la subcultura del ex combatiente de guerra, tomando como ejemplo el caso de los soldados y veteranos de Vietnam, partiendo de la idea de que es una cultura generada por el marco contextual de la desigualdad social y la explosión cultural de los años 60. La guerra de Vietnam es conocida como la guerra impopular por excelencia, una guerra de contrainsurgencia desmoralizadora luchada por reclutas adolescentes de clase trabajadora y minorías, que originó visibles cicatrices psicológicas entre la tropa a la vez que generaría una increíble oleada de resistencia de clase obrera, motines y descenso de la disciplina en el ejército.
La historicidad de Marcos 7,31
Authors: González García Alberto
Published: October 2017

Este trabajo pretende demostrar lo plausible de la ruta seguida por Jesús tal como se la describe en Marcos 7, 31, señalando que, históricamente, nada hay de imposible, o siquiera de extraño, en descender de las tierras altas del Líbano hacia la costa de Sidón, y desde allí marchar en dirección sur por la Via Maris, atravesando la llanura de Esdrelón hasta alcanzar Escitópolis, virando entonces hacia el norte, de vuelta al Gennesaret, siguiendo el curso del Jordán, evitando así el retraso resultante de atravesar las colinas de Galilea, contra lo afirmado por algunos autores.
Observations on Daily Life in the Communal Town of Leopoli-Cencelle
Authors: Annoscia Giorgia Maria
Published: October 2017

La civitas de Leopoli-Cencelle, fundada por el Papa León IV (s. ix), está situada en las Montañas de Tolfa en el Norte de la Provincia de Roma. El sitio fue objeto de investigación arqueológica dirigida por el Departamento de Arqueología Medieval de Sapienza Universidad de Roma. El trabajo se centra en el análisis de unas 30 herramientas agrículas (hachas, azadas, hoces, podaderas) de la fase estratigráfica de la ciudad municipal (ss. xiii-xiv). La interpretación de los datos materiales de estas herramientas, conjugados con los datos que vienen de las fuentes escritas, de la iconografía, de las ciencias aplicadas a la arqueología, nos ofrece un amplio panorama sobre varios aspectos sociales del ciclo de la producción agrícola en Leopoli.
«Una mesa para comer y cenar en la cama». Un refinamiento muy exclusivo en el Burgos del XVIII
Authors: Sanz De La Higuera Francisco J.
Published: October 2017

En el 5.6 % de los inventarios de bienes recopilados para la ciudad de Burgos en lo tocante al siglo xviii aparece un accesorio doméstico, «Una mesa para comer y cenar en la cama» –descrito también en ocasiones como «Una Mesita de Pino para escribir en la Cama»–, asociado en especial a los hogares eclesiásticos –sucedía, de hecho, en el 12.7 % de los documentos del clero–. Se responden en estas páginas a varios interrogantes, hipótesis de trabajo al fin: ¿En qué categorías socio-profesionales encontramos dichas piezas? ¿Evolucionó su presencia a lo largo del Setecientos? ¿Cuáles eran sus utilidades? ¿Por qué especialmente entre los eclesiásticos? Es este un parámetro de análisis en las entrañas de la micro-historia de la cultura material que nos permite zambullirnos en las intimidades de los hogares burgaleses del Setecientos en aras de dar luz a aspectos desconocidos de la cotidianeidad y de los perfiles más ignotos de su existencia.
De súbditos a ciudadanos. La emergencia de nuevas prácticas electorales en el Madrid de 1868
Authors: De Miguel Salanova Santiago
Published: October 2017

Este artículo pondera la trascendencia que la Revolución de 1868 tuvo en la aparición de nuevos comportamientos políticos en Madrid a través de un estudio de caso concreto: las elecciones municipales celebradas en diciembre de ese año, primeras en las que los habitantes de la capital elegían democráticamente a sus representantes en el consistorio tras la aprobación del sufragio universal masculino. A partir de una documentación de archivo inédita (actas del Ayuntamiento Popular de Madrid y actas de los mencionados comicios municipales), se analizará el proceso de aprendizaje del nuevo derecho electoral por parte de la población madrileña. Dentro de esta temática se determinarán las principales debilidades del sistema recién estrenado, visibles en la compleja organización técnica de la consulta, y el disperso panorama existente en las tendencias de voto, más proclive a favorecer a los candidatos a las concejalías por el prestigio social acumulado durante el proceso revolucionario que por su adscripción política e ideológica.
Regulation of signaling pathways by tanshinones in different cancers
Authors: Lin X. , Qureshi M. Z. , Romero M. A. , Khalid S. , Aras A. , Ozbey U. , Farooqi A. A.
Published: October 2017

Past several years have witnessed dramatic leaps in our understanding of rewiring of gene expression at the translation level during cancer developmentthat provides linchpin support to the transformed phenotype. Most recent and ground-breaking developments in the field of molecular oncology aredriven by an explosion in technological advancements and have started to reveal previously unimagined regulatory mechanisms and how they intricately co-ordinate to modulate cancer progression, loss of apoptosis and development of resistance against different therapeutics. However, the insights gained from work in this natural product research have far-reaching impact because of rapidly increasing repertoire of medicinally and biologically efficient phytochemicals. How Tanshinones mediate targeting of JAK-STAT, ER stress associated signaling cascade,PI3K/AKT/mTOR pathway,autophagy, TRAIL pathway and microRNAs are being discovered and will prove to be helpful in getting a step closer to personalized medicine.
Estimating the modulatory effect of cadmium chloride on the genotoxicity and mutagenicity of silver nanoparticles in mice
Authors: Mohamed H. R. H.
Published: October 2017

Silver (Ag) nanoparticles (nano-Ag) are widely used because of their distinctive antimicrobial properties, but this widespread use increases Ag release into the environment along with many other pollutants such as heavy metals. Therefore, this study was undertaken to study the modulatory effect of cadmium chloride (CdCl2) on the genotoxicity and mutagenicity of nano-Ag in mice liver, kidney and brain tissues. Co-injections of CdCl2 (1.5 mg/kg) with nano-Ag (20, 41, or 82 mg/kg) resulted in significant elevations in both single and double DNA strand breaks that triggered higher apoptotic DNA damage, as revealed by the more fragmented appearance of genomic DNA and the significant increase in apoptotic fractions. Concurrent higher mutation incidence in the presenilin-1 and p53 genes was observed after CdCl2 co-treatment than in nano-Ag-treated groups. Immuno-histochemical localization of p53 protein revealed the overexpression of the p53 gene and the histological examination showed diffusely degenerated, congested blood vessels and the infiltration of leukocytes in the liver, kidney, and brain tissues of the groups co-treated with nano-Ag and CdCl2. Moreover, CdCl2 co-injection with nano-Ag increased reactive oxygen species (ROS) generation, as revealed by increased malondialdehyde levels, decreased glutathione levels, and decreased superoxide dismutase and glutathione peroxidase activity, compared with those induced by nano-Ag particles alone. We concluded that CdCl2 enhanced the nano-Ag-induced genotoxicity via increasing mutation incidence in p53 and presenilin-1 gene.
Effects of South African Silica Sand Properties on the Strength Development and Collapsibility of Single Component Sodium Silicate Binders
Authors: Banganayi F.C , Nyembwe K , Polzin H
Published: October 2017

This study shows the results of the investigation of the strength performance, and residual strength of a single component inorganic binder system Cast Clean S27®. The study was conducted using three different foundry sand sources in South Africa. Sample A is an alluvial coastal sample, sample B is an alluvial riverbed sample and Sample C is a blasted sample from a consolidated quartzite rock. The binder was also cured using three different curing mechanisms. The aim of the investigation was to determine the variation of strength performance and residual strength between the different South African sand sources based upon the physical and chemical properties of the sand sources. The moulding sand was prepared using three possible curing mechanisms which are carbon dioxide curing, ester curing and heat curing. The strength measurements were determined by bending strength. Sample A and sample C sand had good strength development. Sample B sand had inferior strength development and excellent high temperature residual strength. The study showed that the single component inorganic binders have good strength development and low residual strength. The silica sand properties have major contributing factors on both strength development and residual strength. The degree of influence of silica sand properties on strength performance and residual strength is dependent on the time of curing and method of curing.
Application of Modified Cores for Grain Refinement in Castings of Aircraft Turbine Blades
Authors: Binczyk F. , Cwajna J. , Gradoń P.
Published: October 2017

Paper presents the results of research on modified surface grain refinement method used in investment casting of hollow, thin-walled parts made of nickel based superalloys. In the current technology, the refining inoculant is applied to the surface of the wax pattern and then, it is transferred to the ceramic mould surface during dewaxing. Because of its chemical activity the inoculant may react with the liquid metal which can cause defects on the external surface of the cast part. The method proposed in the paper aims to reduce the risk of external surface defects by applying the grain refiner only to the ceramic core which shapes the internal surface of the hollow casting. In case of thin-walled parts the grain refinement effect is visible throughout the thickness of the walls. The method is meant to be used when internal surface finish is less important, like for example, aircraft engine turbine blades, where the hollowing of the cast is mainly used to lower the weight and aid in cooling during operation.
Discussion on Usability of the Niyama Criterion for Porosity Predicting in Cast Iron Castings
Authors: Ignaszak Z.
Published: October 2017

The paper refers to previous publications of the author, focused on criteria of casting feeding, including the thermal criterion proposed by Niyama. On the basis of this criterion, present in the post-processing of practically all the simulation codes, danger of casting compactness (in the sense of soundness) in form of a microporosity, caused by the shrinkage phenomena, is predicted. The vast majority of publications in this field concerns shrinkage and feeding phenomena in the cast steel castings – these are the alloys, in which parallel expansion phenomenon does not occur as in the cast irons (graphite crystallization). The paper, basing on the simulation-experimental studies, presents problems of usability of a classic, definition-based approach to the Niyama criterion for the cast iron castings, especially of greater massiveness, for prediction of presence of zones of dispersed porosity, with relation to predictions of the shrinkage type defects. The graphite expansion and its influence on shrinkage compensation during solidification of eutectic is also discussed.
Modelling Reliability of Henhouse Microclimate Systems with Risk Analysis Approaches
Authors: Napiórkowski Jerzy , Gonera Jarosław
Published: October 2017

The paper presents the issue of modelling reliability of microclimate. It is very important to conduct the risk analysis in poultry farms in order to indicate the most dangerous elements of the discussed system in the aspect of maintaining usefulness. The main objective of the paper was to carry out the risk analysis for the system that maintains microclimate in a poultry farm. It was assumed in the paper that the ventilation system influences maintaining microclimate in a henhouse. Simultaneously, the most effective methods of risk reduction are indicated and a rational assessment of the safety level is made. Studies carried out in the paper enabled identification of the risk analysis approach which the best reflects the issue of maintaining technical equipment devices in operation. With the use of the matrix, the indicator and probabilistic approach, the exploitation risk related to the occurrence of previously defined failures of the henhouse ventilation system was assessed. Based on the results of analysis, a conclusion could have been made that concurrent results were obtained with the use of the matrix and probabilistic approaches. In these cases, for all failures the highest and the lowest exploitation risks of occurrence of certain failures in the ventilation system in a henhouse were the same.
Technical and Economic Analysis of Use of Post-Treatment Water as a Source of Heat for Heating Water in Breeding Tanks
Authors: Romański Leszek , Bieniek Jerzy , Bukowski Przemysław , Kobel Przemysław , Szuk Tomasz
Published: October 2017

The paper presents a recommendation on how to use waste heat of post-treatment water in the balneological institute in Lądek Zdrój health resort. This heat may be used in stenothermal fish big scale breeding. The presented innovative solution of a technological breeding line of African sharptooth catfish (Clarias gariepinus) has not been carried out in practice yet and except for ecological values, it may soon bring real profits. The presented calculations show that the analysed technology may bring a real return of the incurred investment expenditures after approx. 6.5 years from the moment the production was launched. The calculated internal return rate is 14.25% and considerably exceeds the border rate (4%). As it was shown, there is an additional possibility of improvement of this profitability through the use of funding as a part of the Operational Programme Fisheries and Sea 2014-2020. Then, at the funding of investment in the amount of 50% of qualified costs IRR will increase to 25.03%. The period of capital return will decrease to approximately 3.5 years.
Multicriteria Fuzzy Sets Application in Economic Clustering Problems
Authors: Radeva Irina
Published: October 2017

This paper presents an approach for small and medium-sized enterprises selection in economic clusters, where the problem of integration is defined as “ill structured under condition of uncertainty”. The proposed solution demonstrates applying several fuzzy multi-criteria decision making algorithms along with discussion over specific input data requirements. The results are compared with classical multi-criteria decision-making algorithm PROMETHEE II.
Energy Efficient Resource Allocation for Virtual Services Based on Heterogeneous Shared Hosting Platforms in Cloud Computing
Authors: Nhut Pham Nguyen Minh , Le Van Son , Nguyen Ha Huy Cuong
Published: October 2017

This paper is an extended and updated version, presented at the INDIA 2017 conference. Optimal resource provisioning for virtual services in the Cloud computing is one of the concerns nowadays. For cloud computing service providers, reducing the number of physical machines providing resources for virtual services in cloud computing is one of the efficient ways to reduce the amount of energy consumption, which in turn enhances the performance of data centers. Multi-dimensional resource provisioning on a Heterogeneous Shared Hosting Platforms for virtual services is known as a NP-hard problem. Therefore, it is necessary to apply the metaheuristic algorithms for estimating the outcome of the problem. In this study, we propose the resource allocation problem for reducing the energy consumption. ECRA-SA algorithms were designed to solve it and were evaluated through CloudSim simulation tool compared with FFD algorithm. The experimental results show that the proposed ECRA-SA algorithm yields a better performance than FFD algorithm.
Particle Swarm Optimization Based on Smoothing Approach for Solving a Class of Bi-Level Multiobjective Programming Problem
Authors: He Qingping , Lv Yibing
Published: October 2017

As a metaheuristic, Particle Swarm Optimization (PSO) has been used to solve the Bi-level Multiobjective Programming Problem (BMPP). However, in the existing solving approach based on PSO for the BMPP, the upper level and the lower level problem are solved interactively by PSO. In this paper, we present a different solving approach based on PSO for the BMPP. Firstly, we replace the lower level problem of the BMPP with Kuhn-Tucker optimality conditions and adopt the perturbed Fischer-Burmeister function to smooth the complementary conditions. After that, we adopt PSO approach to solve the smoothed multiobjective programming problem. Numerical results show that our solving approach can obtain the Pareto optimal front of the BMPP efficiently.
Bi-Level Model for Public Rail Transportation under Incomplete Data
Authors: Pavlova Kristina , Stoilov Todor , Stoilova Krasimira
Published: October 2017

The increase of the utilization of public rail transportations is searched in directions for redistribution of the passenger travels between rail and bus transportation. The rail transport benefits by redistribution of the transportation flows on paths, predominantly supported by rails. The redistribution of the transportation is formalized by bi-level optimization problem. The upper level optimization estimates the maximal flow, which can be transported through a transportation network, supported both by bus and rail transports. The lower level optimization gives priority to the rail transport by decreasing the costs of flow distribution, using rail transport. This bi-level optimization problem was applied for the case of optimization of the rail exploitation in Bulgaria, defining priorities in transportation of the National transport scheme.
The Determination of Diacetyl and Acetylpropionyl in Aerosols From Electronic Smoking Devices Using Gas Chromatography Triple Quad Mass Spectrometry
Authors: Moldoveanu Serban C. , Hudson Amanda G. , Harrison Andrew
Published: October 2017

A reliable and sensitive method for the measurement of the level of diacetyl (2,3-butanedione) and acetylpropionyl (2,3-pentanedione) in the aerosol (both the particles and the suspending gas) of electronic smoking devices (e-cigarettes) has been developed. The method uses a gas chromatographic separation on a Carbowax type column with the measurement of the analytes on a triplequadrupole mass spectrometer working in positive MRM mode. The method has been validated using standard requirements regarding selectivity, sensitivity, recovery, accuracy, and repeatability. The limit of quantitation (LOQ) for the method was determined to be 0.41 ng/mL for diacetyl and 0.21 ng/mL for acetylpropionyl as measured for standards. These values translate to an LOQ of 0.082 ng/puff for diacetyl and 0.042 ng/puff for acetylpropionyl as measured for an e-cigarette with 50 puffs placed in 10 mL acetone. The samples analyzed included collected aerosols from several e-cigarettes, and a number of liquids used in electronic cigarettes (e-liquids). 3R4F Kentucky reference cigarette was also analyzed for evaluating the accuracy of the procedure, with good agreement with data from the literature. Diacetyl and acetylpropionyl were distributed in both particulate phase and also in vapor phase. The levels of diacetyl and acetylpropionyl in particulate phase collected from 3R4F cigarettes were found to represent only about 22% for diacetyl and only 31% for acetylpropionyl, while the vapor phase for diacetyl represented 78% and for acetylpropionyl 69% of the total analyte. The levels of diacetyl and acetylpropionyl in the aerosols of most electronic smoking devices were found to be very low, with a few exceptions. The analysis of the two analytes in several e-liquids available on the market showed a very large range of levels. Some of the e-liquids from the market are likely to have diacetyl and/or acetylpropionyl intentionally added.
Ameliorative effect of Azadirachta indica on sodium fluoride-induced hypertension through improvement of antioxidant defence system and upregulation of extracellular signal regulated kinase 1/2 signaling
Authors: Omóbòwálé Temidayo Olutayo , Oyagbemi Ademola Adetokunbo , Alaba Bukola Ayokunmi , Ola-Davies Olufunke Eunice , Adejumobi Olumuyiwa Abiola , Asenuga Ebunoluwa Racheal , Ajibade Temitayo Olabisi , Adedapo Adeolu Alex , Yakubu Momoh Audu
Published: October 2017

Background:

Toxicities due to fluoride exposure from natural and industrial sources occur commonly in man and animals with severe consequences ranging from mild cardiac derangements to sudden death. In this study, we investigated the protective effects of the methanol extract of Azadirachta indica (AI) against sodium fluoride (NaF)-induced hypertension and genotoxicity in rats.

Methods:

Sixty rats were divided into six groups of ten rats each as follows: Group A, the control group received distilled water; Group B rats were administered NaF at 600 ppm in drinking water; Groups C and D rats were pre-treated with the methanol extract of AI and thereafter administered NaF at 600 ppm in drinking water for 7 consecutive days; Groups E and F rats were co-administered with AI and NaF.

Results:

The administration of NaF caused significant (p<0.05) increases in the blood pressure, markers of oxidative stress, serum myeloperoxidase, xanthine oxidase values in NaF-alone treated rats, compared with the control. Significant (p<0.05) decreases were observed in cardiac and renal antioxidant defence system in rats administered NaF alone compared with the control group. NaF treatment also resulted in a reduction in the expressions of extracellular signal-regulated kinase (ERK) 1/2 in cardiac and renal tissues of NaF-treated rats. Moreover, NaF treatment elicited an increase in the frequency of micronucleated polychromatic erythrocytes when compared with the control group.

Conclusions:

This study shows the protective effect of AI on NaF-induced hypertension and genotoxicity through antioxidant and ERK 1/2 signaling in rats.
Central mediators of the zymosan-induced febrile response
Authors: Bastos-Pereira Amanda Leite , Fraga Daniel , Dreifuss Arturo Alejandro , Zampronio Aleksander Roberto
Published: October 2017

Background:

Zymosan is a fungal cell wall protein-carbohydrate complex that is known to activate inflammatory pathways through the Toll-like receptors and is commonly used to induce fever. Nevertheless, the central mediators that are involved in the zymosan-induced febrile response are only partially known.

Methods:

The present study evaluated the participation of prostaglandins, substance P, endothelin-1 (ET-1), and endogenous opioids (eOPs) in the zymosan-induced febrile response by using inhibitors and antagonists in male Wistar rats.

Results:

Both nonselective (indomethacin) and selective (celecoxib) cyclooxygenase inhibitors reduced the febrile response induced by an intraperitoneal (i.p.) injection of zymosan. Indomethacin also blocked the increase in the prostaglandin E2 levels in the cerebrospinal fluid. An intracerebroventricular injection of the neurokinin-1, ETB, and μ-opioid receptor antagonists also reduced the febrile response induced by the i.p. injected zymosan. Moreover, the μ-opioid receptor antagonist CTAP also reduced the febrile response induced by intra-articular injection of zymosan.

Conclusions:

These results demonstrate that prostaglandins, substance P, ET-1, and eOPs are central mediators of the zymosan-induced febrile response.
A Hybrid Cuckoo Search and Simulated Annealing Algorithm
Authors: Alkhateeb Faisal , Abed-alguni Bilal H.
Published: October 2017

Simulated annealing (SA) proved its success as a single-state optimization search algorithm for both discrete and continuous problems. On the contrary, cuckoo search (CS) is one of the well-known population-based search algorithms that could be used for optimizing some problems with continuous domains. This paper provides a hybrid algorithm using the CS and SA algorithms. The main goal behind our hybridization is to improve the solutions generated by CS using SA to explore the search space in an efficient manner. More precisely, we introduce four variations of the proposed hybrid algorithm. The proposed variations together with the original CS and SA algorithms were evaluated and compared using 10 well-known benchmark functions. The experimental results show that three variations of the proposed algorithm provide a major performance enhancement in terms of best solutions and running time when compared to CS and SA as stand-alone algorithms, whereas the other variation provides a minor enhancement. Moreover, the experimental results show that the proposed hybrid algorithms also outperform some well-known optimization algorithms.
Branch-delete-bound algorithm for globally solving quadratically constrained quadratic programs
Authors: Hou Zhisong , Jiao Hongwei , Cai Lei , Bai Chunyang
Published: October 2017

This paper presents a branch-delete-bound algorithm for effectively solving the global minimum of quadratically constrained quadratic programs problem, which may be nonconvex. By utilizing the characteristics of quadratic function, we construct a new linearizing method, so that the quadratically constrained quadratic programs problem can be converted into a linear relaxed programs problem. Moreover, the established linear relaxed programs problem is embedded within a branch-and-bound framework without introducing any new variables and constrained functions, which can be easily solved by any effective linear programs algorithms. By subsequently solving a series of linear relaxed programs problems, the proposed algorithm can converge the global minimum of the initial quadratically constrained quadratic programs problem. Compared with the known methods, numerical results demonstrate that the proposed method has higher computational efficiency.
The ultimate loophole in Bell’s theorem: The inequality is identically satisfied by data sets composed of ±1′sassuming merely that they exist
Authors: Sica Louis
Published: October 2017

Bell’s stated assumptions in deriving his inequality were sufficient conditions. It is shown that a far simpler condition exists for derivation of the inequality: the mere existence of finite data sets regardless of their statistical or deterministic characteristics. When explicitly computing various quantum correlations, the non-commutation of some observables must be taken into account. The resulting variation in correlations among the observables leads to satisfaction of the Bell inequality. Bell’s mistaken assumption of the same functional form for all correlations is the principal reason for inequality violation. Upon correction of this error, it is no longer necessary to invoke non-locality or non-reality to explain violation of the Bell inequality.
Effect of screw configuration on the dispersion of nanofillers in thermoset polymers
Authors: Angadi Gangadhar , Murthy Hebbale NarayanaRao Narasimha , Ramakrishna Sridhar , Firdosh Salim , Nagappa Raghavendra , Munishamaiah Krishna
Published: October 2017

This paper deals with the study of screw configuration for dispersing nanofillers in thermoset polymers using an intermesh co-rotating twin screw extruder. The influence of kneading elements on the dispersion of nanoclay in epoxy was examined using 10 different screw configurations. Nanoclay was dispersed in epoxy at a barrel temperature of 5°C and a screw speed of 100 rpm. The combination of right hand kneading block and three/four lobed kneading blocks resulted in uniform dispersion of nanofiller. Positive staggered angle with right hand kneading elements yielded uniform dispersion of the nanofiller. Mechanical properties of epoxy nanocomposites processed with these configurations were better than those of neat epoxy. Excessive shear was associated with four lobed kneading block (4KB)/4KB configuration and hence degradation of polymers leading to shorter chains, whereas inadequate shearing in neutral kneading block (NKB)/NKB configuration led to agglomerations. These observations were evidenced by scanning electron microscopy (SEM) and X-ray diffraction (XRD).