bluuebunny/crossref_metadata_2025 huggingface dataset:
Seasonal Changes in the Occurrence of Listeria Monocytogenes in Duhok Province
Authors: Al-Brefkani Azad M. T. , Mammani Ismaeil M. A.
Published: March 2019

Listeria monocytogenes are Gram-positive bacilli cause listeriosis, associated with high rates of hospitalization and mortality. A total of 1362 samples were investigated included 647 clinical samples and 715 from food. This study investigated the differences in the seasonal occurrence of L. monocytogenes in Kurdistan region-Iraq.   L. monocytogeneswas found in 48 samples (3.52%) out of 1362 samples. There were 7/642(1.09%) human clinical samples diagnosed with cold and moderate weather (November, December 2016, and January, February, April 2017). While 41/715(5.73%) of L. monocytogenesisolates were found among food samples, meat samples (n=37) and dairy samples (n=4). A total of 37/476 (7.77%) of the L. monocytogenes isolates in meat samplesweredetected during warm weather (from July through October 2016). In addition, L. monocytogenesin dairy products was found to be by 4/239 (1.68%), were isolated during the moderate season (October, November 2016, and April, May 2017). The study found that the incidence of meat contamination by L. monocytogenesincrease significantly during the warm season in comparison with other seasons. Furthermore, the cases of human Listeriosis caused correlated well with the seasonal levels of L. monocytogenesfound in dairy products. A statistically significant difference in the occurrence of L. monocytogenesisolates and seasons were identified in this study (P value= <0.05).
Improvement Viscosity Index of Lubricating Engine Oil Using Low Molecular Weight Compounds
Authors: Idrees Shenwar A. , Mustafa Lawand L. , Saleem Sabah S.
Published: March 2019

the effect of polarity of solvent on the viscosity and viscosity index of lubricating engine oil has been studied using ethanol as an example of polar solvent and toluene as an example of non-polar solvent at different solvent ratios and ambient temperature and additionally other experiments have been done at five different temperatures including 100 oC. So that, the activation energy of viscous flow (Ea) was calculated, and for this purpose Arrhenius viscosity-temperature dependence has been applied and the results were 42.128, 29.256 and 35.417KJ/mole for lubricating engine oil mixed with ethanol, toluene and no additives in turn. It additionally shows that adding polar solvent to lubrication engine oil viscosity increases this may be due to the fact of strong inter molecular forces that found in polar molecules such as hydrogen bonding in ethanol makes the solution forces stronger as a result higher viscosity. However, adding non-polar solvent decreases viscosity because of small size of toluene and both paraffinic lubricating oil and toluene have same London dispersion inter molecular forces. Last not least, the result shows that engine oil mixed with non-polar molecule gives more temperature stability than that of polar molecule giving viscosity index (VI) 366 and 580 respectively.
AMOEBA+ Classical Potential for Modeling Molecular Interactions
Authors: Liu Chengwen , Piquemal Jean-Philip , Ren Pengyu
Published: March 2019

Classical potentials based on isotropic and additive atomic charges have been widely used to model molecules in computers for the past few decades. The crude approximations in the underlying physics are hindering both their accuracy and transferability across chemical and physical environments. Here we present a new classical potential, AMOEBA+, to capture essential intermolecular forces, including permanent electrostatics, repulsion, dispersion, many-body polarization, short-range charge penetration and charge transfer, by extending the polarizable multipole-based AMOEBA (Atomic Multipole Optimized Energetics for Biomolecular Applications) model. For a set of common organic molecules, we show that AMOEBA+ with general parameters can reproduce both quantum mechanical interactions and energy decompositions according to the Symmetry-Adapted Perturbation Theory (SAPT). Additionally, a new water model developed based on the AMOEBA+ framework captures various liquid phase properties in molecular dynamics simulations while remains consistent with SAPT energy decompositions, utilizing both ab initio data and experimental liquid properties. Our results demonstrate that it is possible to improve the physical basis of classical force fields to advance their accuracy and general applicability.
Bir üniversitenin 4. sınıf öğrencilerinin sağlık okuryazarlığı ve ilişkili bazı faktörlerin incelenmesi
Authors: ÖZDENK Serhat , DEMİR Gülcan , ÖZCEBE Lütfiye Hilal , ÜNER Sarp
Published: March 2019

Amaç: Çalışmada bir üniversitenin 4. sınıf öğrencilerinin sağlık
okuryazarlığı düzeyi ve ilişkili bazı faktörlerin incelenmesi amaçlanmıştır. Yöntem: Kesitsel tipte olan bu
epidemiyolojik araştırmanın evrenini bir üniversitenin bazı bölümlerinde
2014-2015 bahar döneminde eğitim gören 353 öğrenci oluşturmaktadır. Araştırmada
283 öğrenciye ulaşılmıştır (%80.1). Veri toplama aracı, katılımcıların çeşitli
sosyo-demografik özelliklerini, “Yetişkinlerde İşlevsel Sağlık Okuryazarlığı
Testi” ve sağlık okuryazarlığıyla ilişkili olduğu düşünülen bazı değişkenleri
içermektedir. Verilerin değerlendirilmesi SPSS 23.0 programı kullanılarak
yapılmış, verilerin özetlenmesinde tanımlayıcı istatistikler, gruplar arası
karşılaştırmalarda Ki-kare testi ile Mann Whitney-U testi ve analizlerde
lojistik regresyon modellemesi kullanılmıştır. Bulgular: Katılımcıların yaşları 21 ile 32 arasında değişmekte olup
yaş ortalamaları 23.1±1.6 yıldır ve %61.0’ı kadındır. Katılımcıların “Yetişkinlerde
İşlevsel Sağlık Okuryazarlığı Testi” puan ortalaması 74.4±14.4’dür ve %60.4’ünün
sağlık okuryazarlığı düzeyi yeterli olarak belirlenmiştir. Katılımcıların
sosyo-demografik özelliklerine göre sağlık okuryazarlığı puanları arasında
farklılık saptanmamıştır. Lojistik regresyon modeline göre son altı ayda sağlık
hizmeti kullananların sağlık okuryazarlığı puanları, kullanmayanlara göre 1.7
kat daha yüksektir (%95 GA=1.1-2.9). Sonuç:
Her beş katılımcıdan ikisinin sağlık okuryazarlığı düzeyi yetersizdir ve
çalışma grubunun üniversite öğrencileri olduğu düşünüldüğünde bu sonuç dikkat
çekicidir. Sağlık okuryazarlığı düzeyinin yükseltilmesinde özellikle gençlere
odaklanarak, sağlık okuryazarlığı düzeylerini değerlendirme kapsamında temel
sağlık bilgilerini ve hizmetlerini edinebilme, yorumlayabilme ve
anlayabilmeleri açısından sağlıklı yaşam biçimi kazandırmaya, sağlık
sorumluluklarını ve bilinçlerini artırmaya yönelik eğitici programlar sunulması
büyük önem taşımaktadır.
Enhancement of Ground-to-Aircraft Communication Using Audio Watermarking
Authors: Dymarski Przemysław
Published: March 2019

This paper presents research on improving the intelligibility of spoken messages transmitted to aircraft from a ground station. The proposed solution is based on the selective calling (SELCAL) system and the audio watermarking technique. The most important elements of a spoken message (commands, numerical values) are transmitted as a watermark embedded in the speech signal and are displayed to the cockpit crew. The synchronization signal is embedded in SELCAL duo-tones. The proposed system is resistant to resampling and channel noise (at SNR > 25 dB).
Adaptive Load Balancing Ad Hoc Routing Scheme Inspired by True Slime Mold
Authors: Katada Hiroshi , Yamazaki Taku , Miyoshi Takumi
Published: March 2019

Engineering neo-biomimetics, i.e. imitation models based on body structures and behavior of living organisms, relied upon to solve complex problems, have been studied in various ﬁelds. In distributed networks, such as ad-hoc networks and wireless sensor networks, the behavior of a variety of true slime molds which are capable of constructing multipath ﬂow networks based on the amount of body, has been studied. Ad hoc networks only consist of mobile terminals (nodes) that can relay packets along an established route. However, link relations and the available bandwidth of the nodes change dynamically due to the mobility of nodes. In addition, the speed of communication between nodes also varies due to node positions and their communication-related quality. Thus, practical use of ad-hoc networks still remains an issue, because it is diﬃcult to establish stable routes under such environments. This study aims to propose an adaptive load balancing routing technique that adaptively diversiﬁes the transmission paths based on the available bandwidth, residual battery life, and the data transmission volume, by applying a mathematical model of slime mold routing, known as the physarum solver. We conﬁrm the eﬀectiveness of its adaptive behavior in dynamic environments using computer simulations.
Empirical Approach in Topology Control of Sensor Networks for Urban Environment
Authors: Musznicki Bartosz
Published: March 2019

Research into the topology control of Wireless Sensor Networks (WSNs) is geared towards modeling and analysis of methods that may be potentially harnessed to optimize the structure of connections. However, in practice, the ideas and concepts provided by researchers have actually been rarely used by network designers, while sensor systems that have already been deployed and are under continued development in urban environments frequently diﬀer from the patterns and research models available. Moreover, easy access to diversiﬁed wireless technologies enabling new solutions to be empirically developed and popularized has also been conducive to strengthening this particular trend.
A P2P-based Communication Framework for Geo-Location Oriented Networks
Authors: Miyoshi Takumi , Shimomura Yusuke , Fourmaux Olivier
Published: March 2019

This paper proposes a novel peer-to-peer communication framework to implement geographical location oriented networks, called G-LocON. Location-based services have been gaining in popularity, as proven by ridesharing and mobile games. Although these services have to construct geolocation oriented networks based on their users’ geographical locations, they completely rely on client/server models to communicate with neighboring terminals. G-LocON provides geolocation oriented device-to-device communication only with the current wireless technologies, such as LTE and Wi-Fi, cooperating with the global positioning system and peer-to-peer overlay networking. G-LocON will serve as a type of a mobile ad-hoc network in which devices located within the focusing area are capable of communicating directly. We developed a primitive Android application to implement the GLocON framework. Evaluation of the solution’s performance has veriﬁed the usefulness of the proposed system that oﬀers an admissive transmission delay. Moreover, to conﬁrm the application-related potential of the G-LocON framework, we also show a practical map software in which all neighboring mobile devices present in the focusing area are displayed.
Method for Determining Broadcaster Advised Emergency Wake-up Signal for ISDB-T Digital Television Receivers
Authors: Takahashi Satoshi
Published: March 2019

There is a way to automatically wake up television receivers when a broadcaster sends out an emergency alert. In the Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) digital television standard, the emergency wake-up procedure is called an Emergency Warning System (EWS). In ISDB-T, the special signal is embedded in a control message known as transmission and modulation conﬁguration control (TMCC). However, improper identiﬁcation of the wake-up signal, often encountered in mobile reception, leads to unnecessary wake ups. In this paper, a method of reliably determining a wake-up signal is proposed by assuming that broadcasters will not change the TMCC message except for the wake-up signal when the broadcaster sends out an emergency alert. A change in the wake-up bit leads to variation parity, and the proposed method also relies on such variations. Mutual information to be obtained by the wake-up receiver is evaluated using the memoryless binary asymmetric channel model. Results showed that the proposed method provided mutual information even at a Eb/N₀ being lower than 10 dB. Mutual information of the proposed method with intermittent reception is also analyzed as a function of the duty ratio of the intermittent receiver.
Performance of network RTK correction techniques (FKP, MAC and VRS) under limited sky view condition
Authors: PEHLİVAN Hüseyin , BEZCİOĞLU Mert , YILMAZ Muhammet
Published: March 2019

In recent years, the continuously operating reference station – Turkey (CORS-TR) system has been widely used in engineering and cadastral work in Turkey due to ease of use, low cost, and national legislative requirements. In this study, long-term Network RTK (Real-time Kinematic) data were collected under 10°, 20°, 30° and 40° satellite views using a different approach from previous work. In order to evaluate the positioning performance of the system, the measurements were undertaken at different elevation angles (open, partially blocked and extremely blocked) and by considering three different correction techniques (FKP, VRS and MAC), and the results were evaluated in terms of repeatability. From the analysis of the data, it was understood that the performances of the three correction techniques were generally similar, and even in the case of a limited satellite view, the errors remained below 7 cm in all three techniques. However, when the 2D and 3D components were analyzed together, VRS technique showed better results than the other two techniques.
EFFECT OF METABOLIC CAGE HOUSING ON METABOLIC CHANGES IN THE LIVER OF YOUNG MALE LABORATORY RATS
Authors: Marolt Banek Iva , Roša Jagoda , Ježek Davor , Delaš Ivančica
Published: March 2019

The aim of this study is to investigate if a metabolic cage housing is appropriate for studies of metabolic changes in rat liver. Metabolic cages are intended for separately collecting animal urine and feces and for measuring of feed and water consumption. They are often used in biomedical research, especially in studies involving metabolism and nutrition, where it is necessary to control the total intake of feed and water. In numerous studies, researchers have found that housing in a condition similar to housing in metabolic cages i.e. grid floor, lack of bedding, lack of movement, and single housing, could cause stress and thus alter the results and influence the research. Two months old male Wistar rats were randomly assigned to two different housing systems for a three week period. One group of rats was housed individually in metabolic cages and rats in the other group were paired and housed in polycarbonate type IV cages with wood shavings bedding material. The body mass and feed consumption were monitored daily. At the end of the study, four rats from each group were anesthetized and the liver and blood samples were taken. The rest of the rats were used for primary hepatocytes cell culture to determinate glucose production. Metabolic cage housing conditions in our study did not cause stress of sufficient impact to alter the test parameters.Key words: metabolic cage; hepatocytes; insulin resistance; plasma lipidsVPLIV BIVANJA V PRESNOVNI KLETKI NA SPREMEMBE V PRESNOVI JETER PRI MLADIH PODGANJIH SAMCIHPovzetek: Cilj študije je bil raziskati ali je bivanje v presnovnih kletkah primerno za proučevanje presnovnih sprememb v podganjih jetrih. Presnovne kletke so namenjene ločenemu zbiranju živalskega urina in blata ter merjenju porabe krme in vode. Pogosto se uporabljajo v biomedicinskih raziskavah, zlasti v študijah presnove in prehrane, kjer je potrebno nadzorovati skupni vnos krme in vode. V številnih študijah so raziskovalci ugotovili, da lahko bivanje v pogojih, ki so podobni metabolnim kletkam tj. na tleh, ki so sestavljena iz mrež, pomanjkanju nastilja, pomanjkanju gibanja in posamičnem bivanju živali povzroča stres in lahko vpliva na rezultate raziskav. Dva meseca stare samce podgan Wistar smo naključno razporedili v dva različna sistema za nastanitev za obdobje treh tednov. Ena skupina podgan je bila nameščena posamično v presnovnih kletkah, podgane druge skupine pa so bile nastanjene v parih v klasičnih polikarbonatnih kletkah tipa IV s steljo iz lesnih ostružkov. Dnevno smo spremljali njihovo telesno maso in porabo krme. Na koncu študije smo štiri podgane iz vsake skupine anestezirali in odvzeli vzorce jeter in krvi. Preostale podgane smo uporabili za pridobivanje primarnih jetrnih celic z namenom določanja proizvodnje glukoze. Pogoji bivanja v presnovnih kletkah v študiji niso povzročili stresa, ki bi imel značilen vpliv na proučevane spremenljivke.Ključne besede: presnovna kletka; jetrne celice; odpornost na inzulin; plazemske maščobe
MOLECULAR MECHANISMS OF STEM CELL AGING
Authors: Jazbec Katerina , Jež Mojca , Justin Mojca , Rožman Primož
Published: March 2019

The aging of multicellular organisms is a complex process, which is a result of various mutually complementary causes. One of these causes is the aging of stem cells. The biological function of stem cells is the replacement of cells that are lost due to illness, injury or normal fluctuations in the maintenance of tissue homeostasis. Molecular mechanisms involved in stem cell aging are similar to those involved in the aging of somatic cells. They include DNA damage and mutations, cell senescence, stem cell exhaustion, telomere shortening, epigenetic changes (alterations of histones and DNA and the consequent dysregulation of gene expression), changes in microRNAs, changes in metabolism, nutrient sensing, decline in mitochondrial integrity and biogenesis, alterations in microenvironment, accumulation of paracrine factors, and loss of cell polarity and proteostasis. Stem cells have developed special mechanisms that compensate for age-related accumulations of errors and they manage to maintain their stemness for a long time, however, they are able to keep cells in a good condition only for a limited period. This article describes the various mechanisms of stem cell aging and their consequences.Key words: stem cell; aging; nutrient sensing; nicheMOLEKULARNI MEHANIZMI STARANJA MATIČNIH CELICPovzetek: Staranje večceličnih organizmov je kompleksen proces, ki je posledica različnih, med seboj dopolnjujočih se vzrokov. Eden od teh je tudi staranje matičnih celic, katerih biološka funkcija je nadomeščanje celic, ki propadejo zaradi bolezni, poškodb ali normalnega obnavljanja pri ohranjanju homeostaze tkiv. Molekularni mehanizmi, ki so vpleteni v staranje matičnih celic, so podobni kot pri staranju telesnih celic. Vključujejo poškodbe DNK in mutacije, celično senescenco, izčrpavanje zalog matičnih celic, krajšanje telomer, epigenetske spremembe (spremembe histonov in DNKA ter posledično spremenjeno izražanje genov), spremembe v mikroRNK, spremembe v zaznavanju hranil in presnovi, zmanjšano število mitohondrijev in njihovo oslabljeno funkcijo, spremembe v mikrookolju in kopičenje različnih parakrinih dejavnikov ter izgubo celične polarnosti in proteostaze. Matične celice so razvile posebne mehanizme, s katerimi kompenzirajo s staranjem povezano kopičenje napak in ohranjajo svojo matičnost, vendar jih ti mehanizmi v dobri kondiciji lahko ohranjajo le določen čas. V članku opisujemo različne mehanizme staranja matičnih celic in njihove posledice.Ključne besede: matične celice; staranje; hranilna snov; zaznavanje; niša
Interaction of airports and landside areas development
Authors: Rucińska Danuta , Ruciński Andrzej
Published: March 2019

Contemporary airports are the centers of diffusion of global technological achievements and shaping socio-economic relations. As multifunctional transport hubs, they activate the socio-economic potential of space management structures. Increased flows of people, means of transport and investments located around them strengthen the competitiveness of urban areas and their regions. Airports generate jobs and the development of prestigious activities in their environment. Large-scale structures are created around modern airports – landside areas, and they are becoming carriers of targeted development of contemporary space development structures. There are various interactions between the development of airports and related, landside zones, strengthening the development and importance of both structures. The aim of the study is to present the conditions, scope and effects of mutual developmental links between airports and areas surrounding them, including the airport in Gdansk.
China – European Union rail freight traffic: slow growth despite media spotlight
Authors: Bucsky Peter
Published: March 2019

The Chinese Silk Road concept is attracting more and more attention. It involves (geo)politics, economics, infrastructure and transport development. The idea of faster transport of goods overland via Central-Asia by rail between Europe and China has become very popular, but there has been little attention devoted to the fact that the possibility of direct European Union-China rail freight transport has already existed for decades. This article examines statistical data about the rail traffic between the European Union and China and seeks to provide an answer to the question, what can be the realistic future of this transport connection? Trade data suggests that despite the growth in rail freight transport, this mode will be marginal for the transport links between China and Europe
Gremios de aves acuáticas en un humedal de Cuba
Authors: González Alieny , Acosta Martín , Mugica Lourdes , García-Lau Ianela
Published: March 2019

La agrupación en gremios contribuye al entendimiento de la estructura de los ensambles. En este estudio evaluamos la dinámica en composición y estructura en gremios del ensamble de aves acuáticas presente en el humedal de Las Salinas durante el periodo 2012-2013. Para el análisis agrupamos los datos en tres periodos: migración primaveral, residencia de verano y migración otoñal. Identificamos ocho gremios. De ellos, sondeadores someros, zancudas y buscadores aéreos presentaron la mayor riqueza específica. Los gremios de mayor densidad fueron herbívoros, buceadores y filtrador (>50 ind./km2) y los valores más elevados se registraron durante la migración otoñal seguido de la migración primaveral. No hubo variaciones interanuales en la abundancia proporcional por gremio para ningún periodo, sin embargo, entre periodos se detectaron diferencias para sondeadores someros, buscadores aéreos, buceadores, herbívoros y filtrador. La contribución de las especies en cada periodo mostró variaciones por gremios. En los gremios buscadores aéreos, sondeadores profundos, buceadores y herbívoros se registró una especie con una abundancia proporcional mayor al 60%, en tanto en sondeadores someros y zancudas los valores fueron más equitativos. Los resultados establecen una línea base que puede ser utilizada para el manejo y conservación de las aves acuáticas de Las Salinas.
Next Generation, Low-THz Automotive Radar - the potential for frequencies above 100 GHz
Authors: Norouzian Fatemeh , Hoare Edward , Marchetti Emidio , Cherniakov Mikhail , Gashinova Marina
Published: March 2019

Current automotive radars operate under 100 GHz. The natural progression to higher frequencies beyond 100 GHz offers significant benefits in the form of increased bandwidth and exploitation of phenomena associated with shorter wavelength. Higher operating frequencies offer the possibility of significant improvement in range resolution to cm level, improving target classification, reduction in sensor size, mass cost and easier packaging of multiple sensors per vehicle. A comprehensive research program is being undertaken at the Microwave Integrated Systems Laboratory (MISL) at the University of Birmingham to quantify the advantages and limitations of operating at frequencies beyond 100 GHz for automotive applications. This paper summarizes the findings of these studies.
Análisis del uso de micro convertidores DC/DC enfocados en la extracción máxima de energía en una granja fotovoltaica
Authors: Vargas Juan , Medina Mora Jorge Luis , Pozo Marcelo , Ávila Eduardo , POZO NATALY , SALAZAR GABRIEL
Published: March 2019

Este trabajo presenta un estudio amplio del trabajo publicado en la revista INCISCOS 2018 títulado “Improving of the Photovoltaic High Power Plant Generation Using DC/DC Micro Converters”;está enfocado en incrementar la cantidad de energía eléctrica generada de una Planta Fotovoltaica ubicada en Salinas, provincia de Imbabura-Ecuador, mediante la inclusión de micro convertidores DC/DC en los arreglos de los paneles fotovoltaicos y a partir de la implementación de una adecuada técnica de seguimiento del punto de máxima potencia. Los resultados indican que la inserción de los convertidores DC/DC en el sistema provocan un aumento en la cantidad de energía activa. Se realiza el análisis tanto con variaciones de la radiación solar como cambios en la temperatura ambiente.
Where to park? Architecture and implementation of an empty parking lot, automatic recognition system
Authors: Ávalos Héctor , Gómez Estevan , Guzmán Diego , Ordóñez-Camacho Diego , Román Jéssica , Taipe Oswaldo
Published: March 2019

The traffic congestion present in practically every city has, among its increasing factors, the unavailability of enough parking spaces. A typical driver invests a considerable part of the total trip time looking for a free space where to park his vehicle; in many cases, this leads to delays and the consequent discomfort due to the undesired consequences of the generated tardiness. For this problem it is possible to find partial palliative solutions, minimizing the time spent searching for parking by applying Internet of Things techniques, oriented to smart cities and buildings. This research has been focused on finding an appropriate computer architecture that will allow the implementation of a distributed system, which, thanks to the use of computer vision and machine learning techniques, detects free parking spaces inside a parking lot, and provides real time information to the driver, allowing him to go as directly as possible to a vacant parking space.
Simulación de movimiento de un robot hexápodo en entornos de realidad virtual
Authors: Chamba Jonnathan , Sánchez Miguel , Moya Marcelo Javier , Noroña Joaquín , Franco Rafael
Published: March 2019

El presente artículo muestra el desarrollo y ejecución de una animación de un robot hexápodo en entornos de realidad virtual mediante el uso del software Unity. El movimiento del robot es de 18 grados de libertad, los cuales están basados en servo motores que se controlan por medio del uso de un micro controlador; además se muestran los procesos necesarios para transferir el diseño 3D del robot hexápodo realizado a partir de un software CAD (Diseño asistido por computador) a un entorno de realidad virtual sin que las características físicas del diseño original se pierdan. Finalmente, se presentan los resultados obtenidos de la simulación de movimiento y respuestas del robot hexápodo a perturbaciones como rugosidad del piso, suelo irregular, gravedad entre otras; permitiendo una correcta evaluación a posibles diseños de robots antes de ser elaborados.
Enterprise Architecture, an enabler of change and knowledge management
Authors: Moscoso-Zea Oswaldo , Paredes-Gualtor Joel , Luján-Mora Sergio
Published: March 2019

Organizations around the world require a sound process of change management to innovate and remain competitive over time. Change and knowledge management needs to be supported with the right tools to overcome the challenges of transformations and transitions in the business models and processes of diverse organizations. Steering boards can use enterprise architecture (EA) to implement new knowledge management initiatives in their strategic planning. EA allows companies to model the current situation (as-is models) of the organization and the desired future scenarios (to-be models) and to establish road maps to enable adequate transformations. Different frameworks exist in the market that support the management of organizations, for example: Control Objectives for Information and Related Technologies (COBIT), Information Technology Infrastructure Library (ITIL), quality models such as the one proposed by the European Foundation for Quality Management (EFQM) and systems such as the Balanced Scorecard (BSC) are widely used for the management of business and information technologies (IT).  However, EA is not widely used with the other mentioned tools. This paper analyzes EA as a tool for change and knowledge management and compares its functionality with other frameworks in the market. The analysis performed in this paper checks if EA can be used and is compatible with other frameworks. To answer this question, an analysis of the most important processes, good practices, perspectives and tools provided by each framework was performed.
Üç Boyutlu (3B) Yazıcı Teknolojisinin Eğitimde Uygulanabilirliği: Senirkent MYO Örneği
Authors: ÖZSOY Koray
Published: March 2019

Meslek yüksekokulunun amacı, mesleki ve teknik eğitimde bilim ve teknolojik alanda gelişmelere uyum sağlayabilecek, endüstrinin ihtiyaç duyduğu nitelikli, kaliteli ara kademe insan gücünü yetiştirmektir. Çalışma bu amaca yönelik Senirkent Meslek Yüksekokulu kapsamında 3 boyutlu (3B) baskı teknolojisinin eğitimde uygulanabilirliği test etmeyi hedeflemektedir. Bu hedefe bağlı olarak, 3B baskı teknolojisi ile jet motoru, otomotiv diferansiyeli ve robot kol prototip tasarımı ve imalatı gerçekleştirilmiştir. Bunun yanı sıra çalışma kapsamında nitel araştırma desenlerinden fenomenolojik desen tasarlanmıştır. Katılımcılar amaçsal örnekleme yöntemlerinden ölçüt örnekleme yöntemiyle seçilmiş, bu doğrultuda ön lisans programında öğrenim gören son sınıf 6 kişi ile yarı – yapılandırılmış görüşme tekniği kullanılarak veriler toplanmıştır. Elde edilen bulgular; iki ayrı tema halinde kategorize edilmiştir. Gerçekleştirilen çalışma neticesinde öğrencilerin, 3B baskı teknolojisinin eğitimde uygulanabilirliği ile 3B düşünebilme kabiliyetin elde edilmesi sağlanmıştır. Ayrıca öğrencilerin, analitik düşünme ile zihinsel, mesleki ve toplumsal gelişimlerine olumlu katkı sağladığı görülmüştür. Sanayiye nitelikli teknik eleman yetiştiren meslek yüksekokullarında 3B baskı teknolojisi yenilikçi eğitim uygulamalarının, ülkemizin “Dijital Dönüşüm” devrimini gerçekleştirmesine olumlu katkı sağlayacağı düşünülmektedir.
Properties of triple error orbits G and their invariants in Bose – Chaudhuri – Hocquenghem codes C7
Authors: Lipnitski V. A. , Serada A. U.
Published: March 2019

This work is the further development of the theory of norms of syndromes: the theory of polynomial invariants of G-orbits of errors expands with the group G of automorphisms of binary cyclic BCH codes obtained by joining the degrees of cyclotomic permutation to the group Γ and practically exhausting the group of automorphisms of BCH codes. It is determined that polynomial invariants, like the norms of syndromes, have a scalar character and are one-to-one characteristics of their orbits for BCH codes with a constructive distance of five. The paper introduces the corresponding vector polynomial invariants for primitive cyclic BCH codes with a constructive distance of seven, next to the norms of the syndromes that are already vector quantities; the basic properties of the vector polynomial invariants are investigated. It is established that the property of mutual unambiguity is violated: there are G-orbit-isomers, which are different, but have the same vector polynomial invariants. It is substantiated and demonstrated by examples that this circumstance greatly complicates error decoding algorithms based on polynomial invariants
Investigation of formation of hardened layer on titanium alloys by the method of ion-plasma nitriding
Authors: Pobol I. L. , Oleshuk I. G. , Drobov A. N. , Feng Sun , Lin Wang
Published: March 2019

Various methods are applied in the world practice to increase wear resistance, fatigue strength and corrosion resistance of aviation equipment, machinery and medicine parts made of titanium and its alloys. Ion-plasma nitriding provides the ultimate effect making it possible to obtain hardened layers with hardness of HV0.01 650–1000 with a thickness of 0.07–0.20 mm for 3–6 hours, depending on the grade of the titanium alloy.

Technological factors effecting on the efficiency of ion-plasma nitriding of materials are the process temperature, duration of saturation, pressure, composition and flow rate of the working gas mixture. The effect of these technological parameters on the microstructure, microhardness and depth of hardened layers is investigated in the work. It is shown that hardness and depth of the nitrided layer can be controlled by changing the composition, volume and periodicity of the gaseous medium (nitrogen and argon) supply at the stages of heating and holding time of the samples from titanium and its alloys under ion-plasma nitriding. The tribological characteristics of titanium alloys as-received and the same ones subjected to ion-plasma nitriding under friction conditions without a lubricant were studied. For VT1-0 and VT6 alloys in the as-received state during the tests there is a monotonous decrease of the friction coefficient from 0.35–0.40 to 0.25, after nitriding the friction coefficient monotonically increases from 0.14 up to 0.30 when removing the hardened layer.

Studies of corrosion resistance of titanium VT1-0, carried out in a 10 % solution of sulfuric acid, showed that after ion-plasma nitriding at a temperature of 830 °C for 6 hours, the corrosion resistance increases, as the positive polarization potential of the sample shows.
Optimization of 3D printing parameters with sodium alginate hydrogel
Authors: Dovydenko Ye. M. , Agabekov V. Y. , Chizhik S. A.
Published: March 2019

In order to obtain biologically compatible objects with mechanical properties close to living tissues, 3D printing with biocompatible sodium alginate hydrogel at room temperature on the modified desktop 3D printer Up! Mini (manufactured by PP3DP, China) was carried out. The standard print head was replaced with a special syringe-extruder to allow the extrusion of a hydrogel, the details of which were made by 3D printing from ABS plastic. Of the parameters, the standard material feed and print head movement rates were changed. For accurate reproduction of object sizes using 3D printing from this hydrogel the next parameters were established: the optimal concentration of sodium alginate in extruded hydrogel (2.5 wt.%); the composition of the “support” gelatin suspension, which was fixed on the printing table of a 3D printer and served as volumetric support for hydrogel (10 g of calcium chloride CaCl2 and 13.5 g of gelatin per 500 ml of distilled water). The method of its preparation includes 1 minute mixing of components blend, dispersion at 9000 rpm on IKA ULTRA-TURRAX T 25 digital disperser, 4 hours settling at 4 °C, 3 minutes centrifuging at 5500 rpm, removal of the supernatant. The optimal movement speed of the print head during 3D printing and the speed of extrusion of the hydrogel during the formation of the external perimeter of the printing object are 9–11 and 5 mm/s, respectively, as well as the speed of material extrusion during the formation of the internal filling of the model is 0.83 mm/s.
LAJU DEOKSIGENASI DAN LAJU REAERASI SUNGAI BEDADUNG SEGMEN DESA ROWOTAMTU KECAMATAN RAMBIPUJI KABUPATEN JEMBER
Authors: Wahyuningsih Sri , Novita Elida , Ningtias Rahayu
Published: March 2019

Sungai Bedadung segmen Desa Rowotamtu merupakan sungai dengan lokasi di tengah perkotaan yang dekat dengan pemukiman warga serta area pertanian, sehingga memiliki manfaat yang besar sebagai sumber air pemenuhan kebutuhan rumah tangga dan kebutuhan irigasi. Aktivitas manusia yang dilakukan dalam pemanfaatan Sungai Bedadung menyebabkan terjadinya perubahan kualitas air. Tujuan penelitian ini adalah untuk mengetahui laju deoksigenasi dan laju reaerasi pada Sungai Bedadung. Nilai oksigen terlarut dapat diketahui dengan menentukan laju reaerasi (R) dan laju deoksigenasi (D). Perhitungan laju deoksigenasi menggunakan persamaan Hydroscience. Sedangkan untuk menghitung laju reaerasi dihitung menggunakan persamaan O’cconor dan Dobbins. Hasil penelitian menunjukkan nilai rata-rata laju deoksigenasi pada Sungai Bedadung sebesar 0,598 mg/L.hari dan nilai rata-rata laju reaerasi sebesar 5,392 mg/L hari.
A Model ofCulex quinquefasciatusAbundance Constructed Using Routine Surveillance and Treatment Data in Tarrant County, Texas
Authors: Dawson Daniel E. , Salice Christopher J. , Dacko Nina M. , Kurian Anita K.
Published: March 2019

Mosquito surveillance and pesticide treatment data can be combined in statistical models to provide insight into drivers of mosquito population dynamics. In cooperation with the county-based public health authority, multiple municipalities in Tarrant County, Texas, supplied surveillance and pesticide treatment data available from the 2014 mosquito season for analysis. With these data, general linear mixed modeling was used to model population dynamics of Culex quinquefasciatus, the primary vector for West Nile virus. Temporally lagged pesticide treatment information, weather data, and habitat variables were used as predictors of log + 1 transformed mosquito count data, and Akaike information criteria corrected for small sample sizes (AICc)-based model selection and multimodel averaging was used to produce a final model of mosquito abundance. The model revealed that mosquito counts were driven mainly by seasonally fluctuating temperature, precipitation, human population density, and treatment. In particular, interactions between temperature and treatment, and precipitation and human population density significantly contributed to the interpretation of the effects of the nonweather variables.
Rescuing Troves of Hidden Ecological Data to Tackle Emerging Mosquito-Borne Diseases
Authors: Rund Samuel S. C. , Moise Imelda K. , Beier John C. , Martinez Micaela Elvira
Published: March 2019

Despite the major impact of mosquitoes on human health, knowledge gaps exist regarding their natural population dynamics. Even the most basic information—such as spatiotemporal abundance—is mostly unavailable. In the USA, municipalities have created agencies for mosquito control and monitoring, yet no national open-access repository for mosquito surveillance data exists. Vectors, and the pathogens they transmit, know no jurisdictions. We identify >1,000 mosquito control agencies and identify those which make their population abundance surveillance data publicly available. We directly survey Floridian mosquito districts to estimate, from one state alone, the potential amount of hidden data. We generate a large, standardized data set from publicly available online data and demonstrate that spatiotemporal population abundance can be reconstructed and analyzed across data generators. We propose that the ensemble of US mosquito control agencies can, and should, be used to develop a national—and potentially international—open-access repository of mosquito surveillance data, generating the data capital needed to gain a mechanistic understanding of vector population dynamics, and identify existing digital infrastructure that could be leveraged for digitizing and collating extant and future surveillance data for such a repository.
Using Citizen Science to Enhance Surveillance of Aedes aegypti in Arizona, 2015–17
Authors: Tarter Kara D. , Levy Craig E. , Yaglom Hayley D. , Adams Laura E. , Plante Lydia , Casal Mariana G. , Gouge Dawn H. , Rathman Robin , Stokka Dawn , Weiss Joli , Venkat Heather , Walker Kathleen R.
Published: March 2019

Vector surveillance is an essential component of vector-borne disease prevention, but many communities lack resources to support extensive surveillance. The Great Arizona Mosquito Hunt (GAMH) was a collaborative citizen science project conducted during 2015–17 to enhance surveillance for Aedes aegypti in Arizona. Citizen science projects engage the public in scientific research in order to further scientific knowledge while improving community understanding of a specific field of science and the scientific process. Participating schools and youth organizations across the state conducted oviposition trapping for 1–4 wk during peak Ae. aegypti season in Arizona and returned the egg sheets to collaborating entomologists for identification. During the 3-year program, 120 different schools and youth organizations participated. Few participants actually collected Aedes eggs in their traps in 2015 or 2017, but about one-third of participants collected eggs during 2016, including 3 areas that were not previously reported to have Ae. aegypti. While relatively few new areas of Ae. aegypti activity were identified, GAMH was found to be a successful method of engaging citizen scientists. Future citizen science mosquito surveillance projects might be useful to further define the ecology and risk for vector-borne diseases in Arizona.
Yaz Ihlamuru (Tilia platyphyllos Scop.)’nun Bazı Morfolojik Özellikleri İle Yaprak ve Çiçek Uçucu Bileşenlerinin Belirlenmesi
Authors: KOÇ Sedef , FAKİR Hüseyin
Published: March 2019

Yaz ıhlamur (Tilia platyphyllos
Scop.), kültür tarihi çok eskilere dayanan dünyada üretimi ve tüketimi yaygın
olan odunsu bitkilerden biridir. Bu çalışmada yaz ıhlamurunun morfolojik
özellikleri ile yaprak çiçek uçucu bileşenleri araştırılmıştır. Örnekler, Isparta
ilinin Yenişarbademli, Aksu ve Sütçüler ilçesine bağlı Belence ile Kasımlar
köylerinden toplanmıştır. Morfolojik özelliklerini belirlemek amacıyla yaprak,
çiçek ve brakte örneklerinde ölçümler yapılmıştır. Yaprak aya boyu 4.2-10.8 cm
(ort. 7.72 cm), yaprak aya eni ise 4.2-10.2 cm (ort. 6.8 cm) arasında
ölçülmüştür. Yaprak sapı uzunluğu 2.8-6.2 cm aralığında olup, ortalama değeri
4.42 cm’dir. Brakte boyu 4.2-13.0 cm (ort. 8.07 cm), brakte eni ise 1.0-2.5 cm
(ort. 1.67) aralığındadır. Brakte sapı 0.1-1.7 cm aralığındadır. Brakte sapı
ortalama 0.72 cm olarak ölçülmüştür. Çiçek sayısı en az 2 adet en çok 5 adet
ortalama 3 adet olarak tespit edilmiştir. Türün uçucu yağ bileşenlerini
belirlemek amacıyla yaprak, çiçek (brakte) örnekleri oda sıcaklığında
kurutulmuş, HS-SPME/GC-MS analizi ile uçucu bileşenleri belirlenmiştir. Elde
edilen bulgular sonucunda çiçeklerin uçucu bileşenlerinde toplam 113 farklı
bileşen, yaprakların uçucu bileşeninde ise toplam 62 adet bileşen bulunmuştur. Çiçeklerin uçucu bileşenlerinde en etken
bileşenler: (%26.66) (E)-2-Hexenal moleküler yapısı C6H10, (%35.52) 1-Undecyne moleküler yapısı C11H20,
(%14.88), n-Hexanal C6H12O ,(%10.11), 1-Dodecyne C12H22 molekül yapısı
bulunmuştur. Yaprakların uçucu bileşenlerinde en etken uçucu bileşenler: (%64.84) 2-Hexenal moleküler yapısı C6H10O, (%22.73) 1-Decyne moleküler
yapısı C10H18 olarak bulunmuştur.
Yapay Sinir Ağları Yöntemi ile Ermenek Havzası’nın (Karaman) Kayma Türü Heyelan Duyarlılık Değerlendirmesi
Authors: TEKİN Senem , ÇAN Tolga
Published: March 2019

Ermenek Nehri havzası 4020 km2
ile Göksu nehrinin ana alt havzalarından birini oluşturmaktadır.
Havzada heyelanlar yaygın olarak yanal ve düşey geçişli Miyosen kırıntılı ve karbonatlı birimlerin içerisinde
gözlenmektedir. 1000 m’nin üzerinde derinliğe sahip vadi yamaçlarında derin kayma türü heyelanlar, resifal
kireçtaşlarının oluşturduğu platform kenarlarındaki dik yamaçlarda ise kaya düşmeleri yaygındır. Bu
çalışmada Ermenek nehri havzasında kayma türü heyelanların duyarlılık değerlendirmesi yapay sinir ağları
yöntemi kullanılarak gerçekleştirilmiştir. Çalışma alanında toplam alanı 161 km2 olan 302 adet heyelan
bulunmaktadır. Duyarlılık değerlendirmelerinde heyelanları hazırlayıcı faktörler olarak jeoloji, sayısal
yükseklik modeli, yamaç eğimi, pürüzlülük indeksi, teğet, düzlemsel, kesit yamaç eğrisellikleri, topoğrafik
nemlilik indeksi, ortalama eğim, yüzey-röliyef oranı değişkenleri kullanılmıştır. Heyelan duyarlılık
modellemesi için elde edilen veri seti, rastgele seçim yöntemiyle %15 test, %15 doğrulama ve %70 analiz
olarak üç bölüme ayrılmıştır. Elde edilen duyarlılık haritası çok düşük – çok yüksek arasında 5 sınıfta
değerlendirilmiştir. Duyarlılık haritasının doğruluğu, başarı tahmin ve alıcı işletim karakteristiği eğrileriyle
elde edilmiştir. Duyarlılık haritasında mevcut heyelanların %77’sinin, çalışma alanının %29’una karşılık
gelen yüksek ve çok yüksek duyarlı sınıflar içerisinde yer aldığı, alıcı işletim eğrisi altında kalan alan ise
0.893 olarak bulunmuştur. Sonuç olarak elde edilen duyarlılık haritasının yüksek kestirim kapasitesine sahip
olduğu görülmüştür.
HIV Infection: Immunopathogenesis and Risk Factor to Fishermen
Authors: Budiarti Retno
Published: March 2019

Penyakit AIDS (Acquired Immuno Deficiency Syndrome) yang disebabkan oleh infeksi HIV (Human Immunodeficiency Virus), masih merupakan salah satu penyakit infeksi yang berakibat fatal dan belum ditemukan vaksinnya yang universal dan handal. Sebagaimana nama yang diberikan kepada virus maupun penyakit yang ditimbulkannya, maka tanda dan gejala yang dialami oleh pengidapnya adalah gangguan secara menetap dan hebat pada sistem daya pertahanan tubuh terhadap penyakit, atau sistem imunologis seseorang tersebut.Epidemiologi AIDS di Indonesia yang merupakan negara beriklim tropis dan wilayahnya sebagian besar lautan masih tinggi, bahkan Jawa Timur menduduki peringkat tertinggi secara akumulatif hingga Maret 2016. Infeksi HIV sendiri hingga Maret 2016, secara akumulatif Jawa Timur menduduki peringkat kedua setelah DKI Jakarta. Berdasarkan data Pusat Data dan Informasi Kementerian Kesehatan RI, pada tahun 2014 populasi petani, peternak dan nelayan menduduki peringkat keempat terbanyak mengidap AIDS.Mekanisme gangguan sistem imun oleh HIV ini adalah yang penting untuk dijelaskan dan dipahami, sehingga penelitian yang sedang berlangsung saat ini, maupun pada waktu yang akan datang dapat memecahkan permasalahan yang ditimbulkan oleh infeksi virus ini, baik dengan penemuan vaksin atau tindakan pencegahannya, maupun penemuan dan formulasi suatu manajemen terapi yang handal.
ANALISIS BIAYA DAN NILAI UTILITAS PASIEN HEMODIALISA YANG DIBERIKAN TERAPI SEVELAMER KARBONAT
Authors: Safnurbaiti Dwi Putri , Andayani Tri Murti , Irijanto Fredie
Published: March 2019

Sevelamer karbonat merupakan alternatif lain sebagai terapi pengikat fosfat yang diberikan kepada pasien hemodialisa selain CaCO3. Sevelamer karbonat dapat menurunkan kadar fosfat, mengurangi kejadian kalsifikasi vaskular dan mortalitas yang secara langsung berdampak pada perbaikan kualitas hidup pasien hemodialisa, namun harga sevelamer karbonat lebih mahal dibandingkan dengan CaCO3. Penelitian ini bertujuan untuk mengetahui gambaran biaya yang diperlukan untuk terapi sevelamer karbonat dan nilai utilitas pasien hemodialisa yang menggunakan terapi sevelamer karbonat di RS UGM Yogyakarta.Penelitian dilakukan secara prospektif selama 8 minggu di RS UGM Yogyakarta pada bulan Oktober-November 2016. Desain penelitian adalah quasi eksperimental dengan “pretest posttest design with control group”. Kelompok eksperimental adalah sevelamer karbonat dan kontrol adalah CaCO3. Pengukuran health related quality of life(HRQOL) pasien hemodialisa salah satunya dengan mengukur utilitas pasien hemodialisa dengan kuesioner EQ-5D-5L pada awal (pre) dan akhir (post) penelitian. Analisis biaya dilihat berdasarkan perspektif rumah sakit dengan menghitung total direct medical cost.Jumlah total responden dalam penelitian ini adalah 37 pasien yang terdiri atas 16 pasien kelompok eksperimental dan 21 pasien kelompok kontrol. Rata-rata biaya yang diperlukan pasien hemodialisa dengan sevelamer karbonat untuk menangani kondisi gangguan mineral dan tulang adalah sebesar Rp 2.999.188,75±167.920,75 per pasien selama 8 minggu terapi. Nilai utilitas dan skor EQ-5D VAS baseline pasien hemodialisa yang diberikan sevelamer karbonat adalah masing-masing 0,91±0,13 dan 75,93±9,34, dan di akhir penelitian (posttes) terdapat perubahan nilai utilitas dan skor EQ-5D VAS sebesar 0,93±0,08 dan 77,44±11,12. Hasil uji statistik menunjukkan bahwa perubahan nilai utilitas dan skor EQ-5D VAS pasien hemodialisa yang diberikan sevelamer karbonat antara awal (pre) dan akhir penelitian (posttes) adalah menunjukkan tidak berbeda bermakna (p>0,05).