bluuebunny/crossref_metadata_2025 huggingface dataset:
Method to Convert a Horizontal Furnace to Grow ZnO Nanowires for Gas Sensing by the VLS Method.
Authors: Nandhyala Sushma , Haji-Sheikh Michael , Kocanda Martin , Rajashankar Suma
Published: February 2020

Zinc oxide (ZnO), II-VI compound semiconductor with a wide band gap (3.4ev), has a stable wurtzite structure with lattice spacing a=0.325 nm and c=0.521nm. Its properties and potential for applications in photovoltaics, LED’s, spin electronics, ultraviolet light emitters, chemical sensors and transparent electronics has attracted intensive research. The objective of this thesis is to fabricate ZnO nanowires on gold coated silicon substrates using the chemical vapor transport (CVT) method. Under a constant flow of Argon gas (200mL/min), the substrates along with a mixture of ZnO and graphite powder are placed in a modified horizontal furnace which uses a 2.54 cm internally mounted quartz tube and are exposed to high temperature (527°C-1000°C) for different growth times. This reaction causes the formation of ZnO nanowires on the substrates. scanning electron microscopy is used to measure the size of the nanowires.
As-growth and Annealing Porous Silicon Mirrors for Optical Applications in the UV: Features for its possible use as Optical Sensor
Authors: Morales F. Morales , Salgado G. García , López J. A. Luna , Díaz T. , Rosendo E. , Juárez H. , Leyva K. Monfil , Hernández de la Luz D.
Published: February 2020

This work presents a study of the evolution of the reflectance spectra of porous silicon as-growth and with thermal oxidation under controlled conditions. Porous silicon layers were prepared by electrochemical anodization of a silicon substrate p+ in an aqueous solution of hydrofluoric acid and ethanol. Multilayer structures were formed on the basis of porous silicon, two different layers were realized by controlling the refraction index of each one of the layers using the Bruggemann model, in this case for multilayer as-growth, and subsequently a dry oxidation was performed to observe the change in refractive index and reflectance. A model that contains the refractive index of silicon, air and silicon oxide is used for predicting the behavior of the reflectance spectra. With this model is possible to control the width of the reflectance spectrum of the band pass or also called Distributed Bragg Reflector (DBR), DBR were characterized and measured by SEM and UV-VIS spectroscopy. Reflectance spectra were obtained and we can see that the annealing provoked a shifted towards the ultra violet (UV). These changes on reflectance and refractive indexes indicate that oxidation processes can modify the multilayer porous silicon. The optical band gap energy (Eg) was obtained from 4.36 to 3.98 eV to the DBR. These low cost devices open the way to the development of optical sensing in UV entirely based on silicon.
Polypyrrole Based Nano-Biosensor for Sensing Low Concentrations of Hydrogen Peroxide
Authors: Preethichandra D.M.G. , Onoda M.
Published: February 2020

This paper discuss about a novel technique of developing a nano-structured polypyrrole biosensor for measurement of very low concentrations of hydrogen peroxide in liquid media. The proposed fabrication method is very effective in growing a nano-structured conducting polymer layer on a planar conducting substrate. In addition enzyme loading was done under a high electric field of 1000V/m. The developed sensor provides a liner range of 0-200μM of hydrogen peroxide and a measurement sensitivity of 6.5Acm-2M-1.
Proof-of-Concept Development for a Weight-to- Speed System on Heavy Goods Vehicles
Authors: Soar Sam , Cassity Adam , Tickle Andrew Jason
Published: February 2020

Heavy Good Vehicles (HGVs) can cause several problems for road user’s world-wide. One of the main issues found in the UK is that when one HGV is trying to overtake another on a motorway (freeway), the 56mph speed limit imposed means that the time to complete this task is substantial. This forces other road users to use the overtaking lane and causes a bottleneck, increasing road rage and the risk of accidents. Presented here is a proof-of-concept system that could theoretically allow a lighter loaded HGV to travel slightly faster and reduce the overtaking time, thus helping eliminate the bottleneck. The system uses a microcontroller that can be used to take odometer measurements from the driving wheels and weight sensors in the cargo area, to be able to alter the top speed achievable. In this situation a load cell is used to simulate the measured load on the lorry and a stepper motor and variable resistor to represent the engine and accelerator. How such a system could be implemented in a real-world environment is also discussed.
Application of Microwave Spectroscopy Analysis on Determining Quality of Vegetable Oil
Authors: Osman S. B. , Korostynka O. , Mason A. , Cullen J. D. , Al-Shamma’a A. I.
Published: February 2020

Recently there has been an increasing interest in the classification of edible oils as an effective means to examine authenticity and to detect possible adulteration of virgin olive oils with seed oils or low-quality olive oils. Classical methods based on gas chromatography (GC) and high-performance liquid chromatography (HPLC) are too expensive for widespread industrial use and require samples to be analysed in dedicated laboratories thus incurring a significant time penalty. This paper demonstrates that microwave spectrometry is able to offer realtime measurement of oils adequate for determining product authenticity. It does this by evaluating a bespoke sensor system which is used to measure the dielectric properties common-place edible oils. In particular, the capability of the system to distinguish between these oils, even when mixed, is demonstrated. This is important as it is a common technique used by fraudsters in the production of counterfeit oils.
Cost-Effective Sensors, Interoperable With International Existing Ocean Observing Systems, To Meet EU Policies Requirements
Authors: Barton John , Ni Cheallachain Cliona , Magni Paolo , Cleary John , Gamboa Javier Vilallonga , Piwowarczyk Joanna , Pizarro Carles , Moynihan Emma , Zamora Jose Alberto Sáez , Salat Jordi , Fanjul Pablo , Grozdanov Anita , Confalonieri Fabio , Lassoued Yassine , Heckmann Saskia , Challiss Mike
Published: February 2020

COMMON SENSE is a new project that supports the implementation of European Union marine policies such as the Marine Strategy Framework Directive (MSFD) and the Common Fisheries Policy (CFP). The project, which was launched in November 2013, is funded by the EC Seventh Framework Programme (FP7) and has been designed to directly respond to requests for integrated and effective data acquisition systems by developing innovative sensors that will contribute to our understanding of how the marine environment functions. COMMON SENSE is coordinated by the Leitat Technological Centre, Spain, and its consortium brings together 15 partners from seven different countries, encompassing a wide range of technical expertise and know-how in the marine monitoring area.
Analysis of Foot-pressure Data to Classify Mobility Pattern
Authors: Chakraborty Goutam , Dendou Tetsuhiro
Published: February 2020

The pressure exerted by foot, while a person is standing still for a while or moving or doing any physical activity, is a rich source of information. The continuous signal obtained throughout the day, collected by pressure-sensors on shoe sole, could be analyzed to obtain simple to complex facts about the person’s health conditions and habits. It could be used to measure body-weight and balance, while the person is standing. It could as well be used to find the total calorie burnt during movement activities throughout the day. Varied applications would need different number of sensors spread over inside or outside the shoe-sole. In this work, we restrict our investigation to simple applications like, measuring the body weight when the person is standing still, or the speed when the person is moving, or whether she/he is climbing up or down the stairs. Our aim is to use as few sensors as possible, and the algorithm simple and efficient. For measuring body-weight and movement speed, we could achieve nearly 100% accuracy. We could also classify between climbing up or down the stairs with 100% accuracy. All these could be accomplished by a single or a pair of sensors. It is also revealed that the optimum location of the sensor/s for the highest accuracy varies from person to person.
A Proposal for Classification of Multisensor Time Series Data based on Time Delay Embedding
Authors: Chakraborty Basabi
Published: February 2020

Multisensor time series data is common in many ap- plications of process industry, medical and health care, biometrics etc.Analysis of multisensor time series data requires analysis of multidimensional time series(MTS) which is challenging as they constitute a huge volume of data of dynamic nature. Traditional machine learning algorithms for classification and clustering developed for static data can not be applied directly to MTS data. Various techniques have been developed to represent MTS data in a suitable manner for analysis by popular machine learning algorithms. Though a plethora of different approaches have been developed so far, 1NN classifier based on dynamic time warping (DTW) has been found to be the most popular due to its simplicity. In this work, an approach for time series classification is proposed based on multidimensional delay vector representation of time series. Multivariate time series is considered here as a group of single time series and each time series is processed separately to be represented by a multidimensional delay vector (MDV). A simple simulation experiment with online handwritten signature data has been done with a similarity measure based on the MDV representation and classification performance is compared with DTW based classifier. The simulation results show that classification accuracy of the proposed approach is satisfactory while computational cost is lower than DTW method.
Novel Application of Kinect Sensor for Children to Learn Paleontological Environment: Learning Support System based on Body Experience and Sense of Immersion
Authors: Nakayama Tomohiro , Nakadai Takahiro , Yoshida Ryuichi , Ogitsu Takeki , Takemura Hiroshi , Mizoguchi Hiroshi , Izuishi Kaori , Kusunoki Fusako , Muratsu Keita , Inagaki Shigenori
Published: February 2020

The authors are developing a simulation-based environmental learning support system using Kinect sensors. Obviously, it is impossible for learners to experience the actual paleontological environment, and it is therefore difficult for them to learn about the environments and lives. Then, we proposed an immersive animation display system using Kinect sensors and their human skeleton-tracking function. The system animates paleontological animals and their environment on the screen and displays information of the animals in synchronization with learners’ action. Learners are measured their location and action in real time, and then the animation is controlled based on information output from sensors. In this way, the system provides learners with a real body experience and sense of immersion that they have entered the paleontological environment. In order to evaluate the system, we conduct an experiment using the system, and interview the participants about the sense of immersion into environment in the system. The experimental results confirm that most learners feel a tangible improvement in the sense of immersion due to the enjoyment of moving their body and acquisition of body experience.
Detection of adsorbed cytochrome c on hydroxyapatite thick films using a microwave sensor
Authors: Salazar-Alvarez M. , Tofail S.A.M. , Magner E. , Korostynska O. , Mason A. , Al-Shamma’a A.
Published: February 2020

An interdigitated microwave sensor was used to detect the adsorption of cytochrome c on hydroxyapatite thick films. Changes in the microwave spectral response were indicative of the presence of adsorbed cytochrome c. The sensitivity of the system was also evaluated using different protein loadings on the e films. The results suggest that the microwave sensor can be utilized to detect protein.
NTC Thermistors of Y-Al-Mn-Fe-Ni-Cr-O Ceramics for Wide Temperature Range Measurement
Authors: Lee Woonyoung , Park Jinseong
Published: February 2020

NTC thermistors of Y-Al-Mn-Fe-Ni-Cr-O systems were fabricated by using normal ceramic processing for wide temperature range measurement. Pt-Rh alloy as electrodes was inserted into the body during the forming process to increase the reliability of high temperature and to decrease the contact resistance. The properties were analyzed by XRD, SEM and resistance measurement. There are no distinct XRD patterns between Y0.2Al0.1Mn0.27Fe0.16Ni0.27Ox and Y0.2Al0.1Mn0.264Fe0.16 Ni0.264Cr0.012Ox because of too small content of Cr2O3, as a dopant, to make peak difference or new phases within the XRD resolution. SEM images and resistance behaviors show the different properties. With the addition of Cr2O3 as a dopant, the crystallinity and the grain size were decreased and increased, respectively. The resistance behaviors were similar but the values are low with Cr2O3. The specimens show the straight line relationship between the electrical resistivity and the temperature over a wide temperature range, indicating NTC thermistor characteristics.
Mechanical structures for smart-phone enabled sensing
Authors: Lawes S. , Kinnell P
Published: February 2020

The paper presents a new strategy for sensor design that is made possible by the usage of ubiquitous mobile devices for signal capture, digitization, and data processing. The approach taken is to design simple mechanical sensor elements such that they produce a sensor output that is easily acquired by a mobile smart device such as a phone or tablet computer. To illustrate this concept, two mechanical displacement transducers have been designed and tested. These sensors make use of displacement amplification structures, Moiré pattern gratings and a double-ended-tuning-fork (DETF) resonant structure. The sensors produced either an acoustic or optical signal in response to an input load or displacement, which can then be acquired using the camera or microphone of a mobile device. The computing power and connectivity of mobile devices makes a wide range of processing, visualisation and storage techniques possible at low cost. Using this technique an optical displacement transducer with a range of 150 μm, and a resolution of <5 μm; and an acoustic displacement transducer with a range of 20 μm and a standard error of 0.14 μm, are demonstrated
Real-time monitoring of meat drying process using microwave spectroscopy
Authors: Muradov Magomed , Cullen Jeff D. , Abdullah Badr , Ateeq Muhammad , Mason Alex , Shaw Andy , Al- Shamma’a Ahmed I.
Published: February 2020

The objective of this investigation is to monitor the meat drying process and try to analyse the changes of the electromagnetic (EM) signature from a patch antenna during the process. The antenna has been modelled using High Frequency Structure Simulation Software (HFSS) and then constructed. The experimental work carried out by placing a meat sample on a scale inside the fridge and recording reflection coefficient (S11) and weight measurements 24 times (every hour) a day during one month at the frequency range of 1GHz-6GHz. Then, the change in EM signature and weight loss is correlated and analysed. The results demonstrate a relationship between the reflection coefficient and weight loss of the meat sample. The weight of the sample drops down dramatically first week and then keeps steadily decreasing. Likewise, an amplitude shift is greater at the beginning of the drying process and then the shift stabilises.
Los spoilers del Acuerdo de Paz en Colombia: el caso del Clan del Golfo
Authors: García Perilla Juan Carlos , Herrera Castillo Ángela María
Published: February 2020

En los procesos de paz existen individuos u organizaciones que pueden utilizar diversos medios para entorpecer las negociaciones, firma o implementación de los acuerdos. Las diferentes escuelas de estudios de paz y resolución de conflictos denominan a estos actores como “spoilers” (saboteadores). En el caso colombiano, en el año 2016 se firmó la paz entre el gobierno de Juan Manuel Santos y la guerrilla Fuerzas Armadas Revolucionarias de Colombia-Ejército del Pueblo (FARC-EP). A partir de un estudio de caso se analizará al grupo armado ilegal “Clan del Golfo” como un spoiler externo al proceso de implementación del acuerdo de paz, que hace uso de estrategias violentas como el asesinato de líderes sociales y ex miembros de las FARC-EP, masacres, desapariciones, torturas, entre otras, con el propósito de debilitar el proceso de implementación del Acuerdo Final.
Las elecciones presidenciales de Colombia en 2018 Candidatos, autocandidatos y seudocandidatos
Authors: Duque Daza Javier
Published: February 2020

El presente artículo analiza los tipos de candidaturas y las dinámicas de coordinación estratégica a través de coaliciones entre partidos y candidatos en las elecciones presidenciales en Colombia en 2018. En él se sustentan dos argumentos centrales: primero, la combinación de reglas electorales que permiten candidaturas no partidistas, la alta personalización de la política y la debilidad organizativa de los partidos conducen a una competencia electoral con candidatos partidistas y no partidistas, además de candidatos ficticios cuyo objetivo central no es competir sino buscar réditos secundarios y posicionamiento político. Segundo, en el escenario competitivo fragmentado y con partidos débiles se imponen las coaliciones como imperativo de éxito electoral.
De las violencias del desarrollo y el conflicto a las reivindicaciones territoriales en defensa de la vida. El caso de las comunidades rurales de San Carlos
Authors: Cardona López Maribel Cristina
Published: February 2020

Este artículo da cuenta de una reflexión respecto a la relación entre violencia del desarrollo y violencia del conflicto armado, a partir de la experiencia vivida por comunidades rurales del municipio de San Carlos, Antioquia, quienes han presenciado en su territorio tanto el paso devastador de diferentes actores del conflicto colombiano, como también han sufrido los estragos socioambientales de los proyectos hidroeléctricos instaurados en la región. Tomando como base las discusiones teóricas en torno al concepto de desarrollo, el texto da cuenta de las implicaciones negativas y en gran medida violentas de los proyectos extractivistas exógenos que se imponen sobre los territorios y sobre toda forma de vida. Se evidencia cómo esa violencia del desarrollo en el caso colombiano, y de San Carlos en específico, ha compaginado con la violencia de actores armados, contribuyendo a reforzar configuraciones territoriales excluyentes, ante las cuales hoy las comunidades se resisten y plantean otras alternativas en defensa del territorio y la vida, que apelan a una paz en la que ambos tipos de violencia sean superados.
Percepción de la sexualidad en personas mayores de 60 años. Medellín, Colombia
Authors: Robledo Marín Carlos Arturo , Cardona Arango Doris , Cardona Jiménez Jairo , Lizcano Cardona Douglas , Quintero Echeverri Ángela
Published: February 2020

La sexualidad es inherente y acompaña durante todo el curso de la vida a los seres humanos, trasciende el acto sexual para abordar aspectos de orden físico, emocional y cultural. Objetivo. Analizar los factores asociados a la percepción de la sexualidad según características demográficas, emocionales y psicológicas en personas mayores de 60 años. Materiales y métodos. Se realizó un estudio cuantitativo, observacional analítico, con fuente de información primaria a 665 personas de 60 años y más de la ciudad de Medellín, en el año 2018. Se determinaron las características demográficas, emocionales y psicológicas que permitieran conocer su percepción sobre sexualidad. Se calcularon medidas de asociación X2 y como medidas epidemiológicas, razones de prevalencia crudas y ajustadas. Resultados. Las personas que nunca se sintieron tristes consideraron importante la sexualidad (69,4 %), los hombres con una pareja estable, que no se sienten solos, con apoyo social también la consideraron como algo importante. Conclusiones. La importancia en la sexualidad de la persona mayor está determinada por estados anímicos, de estabilidad emocional y de integración social.
Sobre el reconocimiento y la otredad en la escuela: una lectura desde Lévinas y Mélich
Authors: Agudelo Torres José Federico , Rojas Restrepo Farley Sary , Ocampo Ruiz Edgar
Published: February 2020

La figura del otro y la otredad se constituye, sin lugar a dudas, en uno de los más importantes cuestionamientos de la ética en la escuela contemporánea. De ahí que la intención de este texto sea la de reconocer los alcances y las posibilidades de aquellas concepciones que sobre formación y otredad leemos en la obra de dos importantes pensadores coetáneos, a saber, Emmanuel Lévinas y Joan Carles Mélich. Para ello nos servimos de un riguroso análisis documental de la obra pedagógica de los autores mencionados, así como de la aplicación de una matriz de análisis categorial en procura de triangular los encuentros y los puntos de tensión. Es de resaltar que entre los hallazgos más importantes de la investigación se logró evidenciar la importancia de aquella otredad que habita en la escuela contemporánea en el proceso formativo de todo futuro maestro y que demanda, sin lugar a dudas, un ejercicio de valoración y reconocimiento. De igual manera se hizo evidente la necesidad de resignificar algunas de las más importantes concepciones éticas que se trabajan en el currículo escolar, así como la imperiosa demanda de ampliar el horizonte conceptual, propio del discurso ético, con el que se piensa y se deconstruyen las figuras del maestro, el estudiante y la escuela misma.
Una nueva impronta: publicación continua
Authors: Zuluaga Mesa David Esteban
Published: February 2020

Nuestra capacidad actual para gestionar el conocimiento sigue siendo rebasada por el alto número de productos de investigación que se generan, situación que invita a considerar no solo la transición a sistemas digitales que den lugar a procesos reticulares, sino también estrategias metodológicas que permitan una gestión más eficiente de las publicaciones científicas, no solo en términos cuantitativos (número de productos), sino también cualitativos (productos de calidad).
Yeni N-benzilbenzimidazol-gümüş(I) komplekslerinin sentezi, karakterizasyonu, karbonik anhidraz ve polifenol oksidaz enzimleri üzerindeki inhibitör özellikleri
Authors: ERGÜN Adem , KARATAŞ Mert Olgun
Published: February 2020

Gümüş
komplekslerinin biyolojik özellikleri çok iyi bilinmesine rağmen enzim
inhibisyonu özelliklerine yönelik çalışmalar oldukça sınırlıdır. Diğer taraftan
benzimidazol türevlerinin anti-kanser etki mekanizmalarından birinin enzim
inhibisyonu olduğu bilinmektedir. Bu nedenle bu çalışmada, beş yeni N-benzilbenzimidazol-gümüş(I) kompleksi
sentezlendi, 1H NMR, 13C NMR, IR ve kütle spektroskopik
yöntemleri ve elementel analiz sonuçları ile tamamen karakterize edildi. Elde
edilen komplekslerin insan karbonik anhidraz I - II ve polifenol oksidaz
enzimleri üzerindeki inhibisyon etkileri incelendi ve komplekslerin bu
enzimlerin aktivitelerini sırasıyla 29.58-32.65 µM, 21.05-23.65 µM ve
30.38-44.45 µM’lık IC50 değerleri ile inhibe ettiği gözlendi. Gümüş
bileşiklerinin insan vücudunda düşük konsantrasyonlarda toksik etki göstermediği
de göz önüne alınırsa, bu çalışmada test edilen kompleksler karbonik anhidraz
inhibitörü olarak glokom tedavisinde ve polifenol oksidaz inhibitörü olarak ise
hiper-pigmentasyon hastalığı tedavisinde kullanılmak için umut verici
adaylardır.
Türkiye’de Gıda Endüstrisinde Gıda güvenliği ve Denetimlerin Rolü: Iğdır İli Örneği
Authors: BEYKAYA Mehmet
Published: February 2020

Gıda endüstrisi hem ülke ekonomisi hem de insanımızın yeterli gıdaya erişimi bakımından, gıda güvenliği ise gıda endüstrisinin sürdürülebilirliği, beslenme ve tüketici sağlığı açısından önem arz etmektedir. Gıda güvenliğinin sağlanmasında bir araç olan gıda denetimleri; işletmelerin gıda güvenliği sistemlerini değerlendirmeyi, gıda güvenliği ve kalite standartlarına ilişkin sertifikaları kontrol etmeyi amaçlar. Ayrıca gıda denetimleri, gıda işletmelerindeki işleyiş ve prosesi gözden geçirmek, yasal uygunluğu takip etmek, tüketicilerin kaliteli, güvenilir gıda teminini sağlamak hedefiyle yılda bir veya birden fazla sayıda yapılmaktadır. Son zamanlarda tüketiciler, gıda güvenliği ve kalite konularına daha duyarlıdır. Özellikle gıda sektöründe yaşanan olumsuz tecrübeler, kamu kontrolünde gıdanın güvenliği ve kalitesi konularında çeşitli standartların gelişmesini sağlamıştır. Bu standartların etkinliği, gıda denetçilerinin bilgi, beceri, yetkinliği ve standartların uygulama yöntemine bağlıdır. Bu makalede, Türkiye’de gıda endüstrisinde gıda güvenliği ve denetimler hakkında bilgi sunmak, kamu otoritesinin rolünü ortaya koymak, ülkenin gıda mevzuatındaki değişim ve gelişmeleri kronolojik olarak yansıtmak ve Iğdır ilindeki gıda işletmelerinin mevcut durumu, yıllar itibariyle yapılmış denetim faaliyetleri ve sonuçlarını değerlendirilmek hedeflenmiştir.
Investigation of the Protective Capacities of Precipitation-Hardening Stainless Steels in terms of Charged and un-Charged Particle Radiation
Authors: ŞAKAR Erdem
Published: February 2020

In this study, it has been focused on the investigation of particle-shielding performances of precipitation-hardening stainless steels (PH-SSs). In line with this focus, the stopping powers and ranges values of four different PH-SSs (15−5PH, 15−7PH, 17−4PH and 17−7PH) for energetic charged particles (proton, electron and alpha particles) were carried out in the kinetic energy range of 0.01-20 MeV. In addition, the fast neutron removal cross-section values of PH-SSs examined for neutrons were calculated at 4.5 MeV. In order to achieve a remarkable conclusion about the particle-absorbing capacities of the PH-SSs investigated, all calculations were also performed for some concretes (steel-magnetite, steel-scrap and ordinary concretes) used as shielding materials in nuclear applications. The results obtained were comparatively presented as a function of kinetic energy of particles. In addition, the results obtained were evaluated in terms of both types of particle and phase structures of materials examined. According to the results obtained, it was observed that the all investigated parameters are independent of phase structures of PH-SSs, that the all calculated parameters for PH-SSs examined are very close to each other, and that the particle-shielding performances of PH-SSs under examination are better than comparison concretes. As a result of the data obtained from this study, it was observed that PH-SSs can be used as an alternative material in areas where particle radiation safety is required because of their superior characteristic and shielding properties.
Reduction of local scour around a bridge pier by using different shapes of pier slots and collars
Authors: Bestawy A. , Eltahawy T. , Alsaluli A. , Almaliki A. , Alqurashi M.
Published: February 2020

Local scour around bridge piers is one of the main causes of bridge failure all over the world. Experimental and hydraulic models were carried out to investigate two types of scour reduction methods around a single cylindrical pier, namely the pier's slots and collars. The efficiency of various types of pier slots and circular collars around the pier's base in reducing scour were studied. A new shape of a conical collar was developed by the authors and examined along with other shapes. The results revealed that collars, in general, have more influence in reducing scour depth than slots made in the front and rear of bridge piers. The sigma-slot acts better than other tested slots, with a reduction in the scour depths of 59.3% and 52.8% at the upstream and downstream of the pier, respectively. On the other hand, the conical collar appeared to be the most effective collar shape in reducing the scour around the bridge pier, with a 61.1% reduction in the scour depth downstream of the pier. A three-dimensional laser scanner was used to capture the bed topography at the end of each experiment and contour maps of the deformed bed were produced. A one-dimensional Hydrologic Engineering Center-River Analysis System model was developed with a single bridge pier to predict the scour depth around the pier in an attempt to introduce new values for the pier nose shape factor, , which describes the tested piers.
Ameliorative Effects and Cellular Aspects of Phytoconstituents in Atherosclerosis
Authors: Alamgeer  , Asif Hira , Sandhu Muhammad Z.A. , Aziz Madiha , Irfan Hafiz M. , Moreno Karyne G.T. , Junior Arquimedes Gasparotto
Published: February 2020

Atherosclerosis is a cardiovascular disease that involves vessels through the development of fatty
streaks and plaques. Plant-based compounds can help treat or prevent atherosclerosis by affecting various factors
that are involved in the disease. The present review discusses our current knowledge of the major cellular and
molecular mechanisms of phytotherapeutics for the treatment of atherosclerosis. Numerous studies have evaluated
the antiatherosclerotic activity of phytoconstituents to provide preliminary evidence of efficacy, but only a
few studies have delineated the underlying molecular mechanisms. Plant-derived phytotherapeutics primarily
targets abnormal levels of lipoproteins, endothelial dysfunction, smooth muscle cell migration, foam cell development,
and atheromatous plaque formation. Nonetheless, the principal mechanisms that are responsible for their
therapeutic actions remain unclear. Further pharmacological studies are needed to elucidate the underlying molecular
mechanisms of the antiatherosclerotic response to these phytoconstituents.
Association Between Sarcopenic Obesity and Metabolic Syndrome in Adults: A Systematic Review and Meta-Analysis
Authors: Khadra Dima , Itani Leila , Chebaro Yomna , Obeid May , Jaber Miryam , Ghanem Reham , Ayton Agnes , Kreidieh Dima , E. Masri Dana , Kimura Akira , Tannir Hana , El Ghoch Marwan
Published: February 2020

Background:

In the last two decades, a new phenotype termed Sarcopenic Obesity (SO), in which sarcopenia and obesity coexist, has emerged.

Objective:

The aim of this systematic review and meta-analysis was first to assess the prevalence of Metabolic syndrome (Mets) among individuals with and without SO, and second, to determine if SO may increase the relative risk of Mets.

Methods:

This study was conducted in adherence to the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines and the data were collated by means of metaanalysis and narrative synthesis.

Results:

Twelve studies including a total of 11,308 adults with overweight or obesity of both genders met the inclusion criteria and were reviewed, revealing two main findings. First, a similar overall prevalence of Mets in individuals with SO (61.49%; 95% CI: 52.19-70.40) when compared to those without SO (56.74%; 95% CI: 47.32-65.93) was identified. Second, the presence of SO appears not to increase the risk of Mets with respect to those without SO (RR = 1.08, 95% CI: 0.99- 1.17, p = 0.07).

Conclusion:

No higher prevalence of Mets among individuals with SO when compared to those with obesity only, nor a significant association between SO and a higher risk of Mets was found.
Real Life Egyptian Experience of Daclatasvir Plus Sofosbuvir with Ribavirin in Naïve Difficult to Treat HCV Patients
Authors: Wahsh Engy A. , Hussein Amal K. , Gomaa Ahmed A. , Baraka Mohamed A. , Al-deen Abead Mohie
Published: February 2020

Background:

Chronic infection with Hepatitis C virus (HCV) is considered as a major
cause for developing liver cirrhosis and hepatocellular carcinoma. A new era in HCV treatment is
ongoing using Direct Acting Antiviral activity (DAA). The first approved DAA drug was Sofosbuvir
which has a high tolerability and preferable pharmacokinetic profile. Another recently developed
drug is Daclatasvir a first-in-class HCV NS5A replication complex inhibitor. Both drugs are administered
orally once daily and have potent antiviral activity with wide genotypic coverage.

Methods:

In the outpatient clinic, one hundred and fifty naïve difficult to treat chronic HCV patients
were recruited from Tropical Medicine Department at Fayoum public hospital. A combination of
Daclatasvir (60 mg) and Sofosbuvir (400 mg) (DCV/SOF) has been administered for those patients
once daily with Ribavirin (1200 mg or 1000 mg based on patients’ weight on two divided doses)
over a period of 12 weeks. All patients have been followed up for clinical, laboratory assessment and
HCV PCR to detect the efficacy and safety of the therapy.

Results:

Sustained Virologic Response rate (SVR12) was achieved in the vast majority of patients
(90.67%). Cirrhotic patients showed lower SVR compared to non-cirrhotic patients (88.89% vs
90.91%, respectively). Around half of the patients (49.33%) developed adverse events (AEs) during
treatment. The most common AEs were headache, fatigue and abdominal pain

Conclusion:

The available evidence seems to suggest that combination therapy of (DCV/SOF with
RBV) in the treatment of chronic HCV genotype IV naïve difficult to treat patients either cirrhotic or
non-cirrhotic is safe and effective. Monitoring for clinical and laboratory hepatic parameters was the
basis for these findings.
A Review of Data Transmission Techniques for Wireless Biomedical Data Communication
Authors: Kaur Harminder , Pahuja Sharavan K.
Published: February 2020

Background & Objective:

The healthcare applications provide the use of the wireless
sensor network and wireless transmission of the physiological data of the patient due to the lack of
medical facility. The wireless transmission can be caused due to some losses during the exchange
of information. Various techniques are introduced in recent years to overcome these losses.

Methods:

For the efficient transmission requirements of the biomedical data, various techniques
are introduced by different authors. This paper presents a review on the various transmission losses
and techniques, in order to overcome these losses in the biomedical field. The authors also provide
a comparison of the available transmission techniques and the need for real-time transmission.

Results:

The different physiological data of the patients is collected by using different medical
sensors, which can create congestion, transmission delay and packet loss during transmission. The
paper discusses the different congestion avoidance techniques to overcome the transmission loss
like transmission delay, packet loss, network load, etc. which provide the minimum error rate during
transmission.

Conclusion:

The healthcare application overcomes the difficulties that occur in the medical field
with the use of wireless transmission and wireless sensor networks. The medical sensors collect a
vast number of data, which can lead to congestion and other transmission losses in the network. It
can affect the receiver's side for detecting the condition. To overcome these problems, different
techniques like LACAS, Event to Sink Protocol, Relaxation Theory, etc. are introduced in recent
years to enhance network performance.
Recent Progress on Carbon-chalcogen Bond Formation Reaction Under Microwave Irradiation
Authors: Ranu Brindaban C. , Ghosh Tubai , Adak Laksmikanta
Published: February 2020

The carbon-chalcogen bond formation is of much importance as organochalcogenides scaffold,
and in general, it shows by organochalcogenide scaffolds, in general, show promising biological
activities and many compounds containing chalcogenide units are currently used as drugs, agrochemicals
and useful materials. Thus, a plethora of methods has been developed for the formation of carbonchalcogen
bonds. This review covers the recent developments on the formation of carbon-chalcogen
bonds under microwave irradiation and synthesis of useful chalcogenides by employing this process.
ANALISIS RASIO KEUANGAN SEBELUM DAN SESUDAH PENERAPAN PERNYATAAN STANDAR AKUNTANSI PEMERINTAHAN NOMOR 13 PADA PUSKESMAS TEGALREJO YOGYAKARTA PERIODE 2016-2017
Authors: YOHAN YUMAZAIN IZHHAR , TAMAN ABDULLAH
Published: February 2020

Abstrak: Analisis Rasio Keuangan Sebelum Dan Sesudah Penerapan Pernyataan Standar Akuntansi Pemerintahan Nomor 13 Pada Puskesmas Tegalrejo Yogyakarta Periode 2016-2017. Penelitian ini bertujuan untuk mengetahui bagaimana Rasio Keuangan ditinjau dari Rasio Likuiditas, Rasio Solvabilitas, Rasio Profitabilitas, dan Rasio Aktivitas sebelum dan sesudah penerapan PSAP Nomor 13 pada Pelaporan Keuangan Puskesmas Tegalrejo Yogyakarta. Metode pengumpulan data yang digunakan adalah dokumentasi. Metode analisis data menggunakan analisis komparatif sederhana pada Pelaporan Keuangan Puskesmas Tegalrejo dengan menggunakan Rasio Keuangan tahun 2016-2017 yang meliputi Rasio Likuiditas, Rasio Solvabilitas, Rasio Profitabilitas, serta Rasio Aktivitas. Hasil penelitian menunjukkan bahwa Rasio Solvabilitas tahun 2016 dan 2017 Puskesmas Tegalrejo Yogyakarta diperoleh hasil bahwa analisis Rasio Likuiditas pada Puskesmas Tegalrejo mengalami penurunan, hasil Rasio Solvabilitas diperoleh meningkat. Sementara hasil Rasio Profitabilitas cenderung mengalami peningkatan, serta rasio aktivitas mengalami penurunan. Kata Kunci: Laporan Keuangan, Penyajian Laporan Keuangan, Rasio Keuangan, Rasio Likuiditas, Rasio Solvabilitas, Rasio Profitabilitas, Rasio Aktivitas.
THE EFFECT OF RELIGIOSITY, THE LEVEL OF INCOME, AND THE LEVEL OF ISLAMIC FINANCIAL LITERACY TOWARD THE INTEREST OF STUDENT TO BECOME CUSTOMERS IN SHARIA FINANCIAL INSTITUTION
Authors: Luthfiani Rifda Amalia , Sari Ratna Candra
Published: February 2020

Abstract : The Effect of Religiosity, The Level of Income, and The Level of Islamic Financial Literacy Toward The Interest Of Student To Become Customers In Sharia Financial Institution. This research aims to analyze (1) the effect of religiosity toward the interest of students to become customers in Sharia financial institutions, (2) the effect of income on the interest of students to become customers in Sharia financial institutions, (3) the effect of the level of Islamic financial literacy the interest of students to become customers in Sharia financial institutions, and (4) the effect of religiosity, income, and the level of Islamic financial literacy the interest of students to become customers in Sharia financial institutions.This research was causal research, used a purposive sampling method, and used multiple linear regression technique. The results of this research indicate that all independent variables have a positive effect on the dependent variable. Keywords : The Interest of Students to Become Customers in Sharia Financial Institutions, Religiosity, The Level of Income, The Level of Islamic Financial Literacy
Parasita
Authors: Daré Paula Serafim , Martins Patrícia Maria
Published: February 2020

Direção: Bong Joon-ho. Barunson, 2019. (Coreia)
He Korowai Manaaki (Pregnancy Wraparound Care): Study Protocol for a Cluster Randomised Clinical Trial (Preprint)
Authors: Lawton Bev , Storey Francesca , Sibanda Nokuthaba , Bennett Matthew , Lambert Charles , Geller Stacie , Edmonds Liza , Cram Fiona
Published: February 2020

BACKGROUND

Maternal and infant health inequities between Māori (the Indigenous peoples of Aotearoa New Zealand) and New Zealand European (NZE) women are well documented and cannot be explained solely by socioeconomic status. A research centre-iwi (tribal group) partnership aims to address these disparities and improve maternal and infant health outcomes by implementing an augmented maternity care pathway (He Korowai Manaaki) to improve access to services and evidence informed care.

OBJECTIVE

The objective of this study is to test whether an augmented maternity care pathway improves Māori infant health outcomes.

METHODS

This is a Kaupapa Māori (by, with and for Māori) cluster randomised clinical trial involving eight primary care practices allocated to either an intervention or control arm. The intervention arm comprises an augmented maternity care pathway (He Korowai Manaaki) offering clinical care through additional paid health care appointments and improved access to social supports (e.g. housing, transport). The control arm is usual care. The primary outcome is increased timely vaccination for Māori infants, defined as all age appropriate vaccinations completed by 6 months of age.

RESULTS

Recruitment commenced in November 2018 and was completed June 2020 with 251 enrolled women recruited in intervention primary care practices before 20 weeks pregnant. Publication of results is anticipated late 2023.

CONCLUSIONS

The results will inform primary health care policy including whether the provision of augmented maternal care pathways reduces disparities in the structural determinants of health. If effective He Korowai Manaaki will strengthen the health and wellbeing of pregnant Māori women and their babies and improve their health outcomes, laying a strong foundation for lifelong health and wellbeing.

CLINICALTRIAL

ACTRN12619001155189
http://www.ANZCTR.org.au/ACTRN12619001155189.aspx
The Characteristic of Taro Flour Based Pasta with Addition of Modified Starch and Hydrocolloids
Authors: Sonia Sonia , Julianti Elisa , Ridwansyah Ridwansyah
Published: February 2020

A way to make people with coeliac disease able to eat a gluten-based food is by creating gluten-free food like taro flour based pasta with the addition of modified starches and hydrocolloids. In this research, the pasta were made by using the heat moisture treatment of modified starch of banana and potato were combined with taro flour with the proportion 0%:30%:70%, 7.5%:22.5%:70%, 15%:15%:70%, 22.5%:7.5%:70% and 30%:0%:70% and added with 0,5% of hydrocolloids such as xanthan gum, carboxyl methyl cellulose (CMC) and arabic gum. The results showed that the proportions of starches and flour were highly significantly different (p < 0.01) in protein content, cooking time, elongation and significantly different (p < 0.05) in crude fibre content. The influence of hydrocolloids addition was found to be highly significantly different (p < 0.01) in cooking loss, elongation; and significantly different (p < 0.05) in cooking time. The interactions of proportions of starches and flour and the addition of hydrocolloids were highly significantly different (p < 0.01) in crude fibre content, cooking time and elongation. The best spaghetti composition was based on cooking time, cooking loss, and elongation which could be found in the proportion of 15%:15%:70% of modified banana starch, modified potato starch, and taro flour with the addition of xanthan gum of 0.5%.
Hubungan Karakteristik Ibu, Asupan Zat Besi, Asam Folat Dan Vitamin C Dengan Status Anemia Ibu Hamil
Authors: Putri Rizki Nadiya , Nirmala Sefita Aryuti , Aprillani Irna Kurnia , Judistiani Tina Dewi , Wijaya Merry
Published: February 2020

Latar Belakang : Anemia ibu hamil bergantung pada banyak faktor risiko, misalnya usia ibu, paritas, status sosial-ekonomi dan trimester kehamilan sebagai faktor risiko potensial anemia. Riset Kesehatan Dasar (Riskesdas) tahun 2013, prevalensi anemia pada ibu hamil adalah 37,1%. Hasil penelitian Susanti dkk tahun 2017 di Kecamatan Jatinangor, dari 105 ibu hamil dengan pemeriksaan Complete Blood Count (CBC) diperoleh 21,9% ibu mengalami anemia.Tujuan : Mengetahui gambaran status anemia, karakteristik ibu (usia, paritas, pendidikan dan status gizi), kecukupan asupan zat besi, asam folat dan vitamin C dan hubungan antara karakteristik ibu, asupan zat besi, asam folat dan vitamin C dengan status anemia ibu hamil di Kecamatan Jatinangor.Metode: Penelitian ini adalah analitik dengan pendekatan potong lintang. Populasi adalah ibu hamil di kecamatan Jatinangor yang berjumlah 210 orang. Teknik pengambilan sampel adalah accidental sampling dengan jumlah sampel yang didapatkan yaitu sebanyak 66 sampel. Pengukuran asupan zat gizi dengan metode food record dalam waktu tiga hariHasil : Terdapat 31,6,% ibu hamil mengalami anemia, tidak ada hubungan antara usia (p=0,91), paritas (p=0,42), pendidikan (p=0,96), status gizi (0,41), zat besi (0,76), asam folat (0,94) dan vitamin C (0,92) dengan status anemia.Kesimpulan : Sebanyak 31,6% ibu hamil mengalami anemia, tidak ada hubungan antara karakteristik ibu, asupan zat besi, asam folat dan vitamin C dengan status anemia ibu hamil
I’ve Changed, I’m Smarter: Empowering Youth to Thrive Neurosequential Approach to Employment, Education and Training Outcomes for Youth
Authors: Keegan Lisa M. , Cartmel Jennifer , Harris Paul
Published: February 2020

This paper explores the impact of a neurosequential brain development approach on employment, education and training outcomes of vulnerable long-term unemployed youth, aged 15-24 years. The Empowering Youth to Thrive (EYTT) program utilises neuroscience research, which underpin varied creative and sensory and regulatory experiences used to engage youth in social and emotional learning. The aim is to enhance brain pathways to increase youth’s higher order thinking functions such as problem solving, communication and critical thinking skills. These are considered necessary attributes for positive engagement in the current and future workforce. A bricolage methodology was used to evaluate the impact of the program, with findings determining the EYTT program had benefits for participants in gaining successful training, education and/or employment opportunities.
Communicative Competence of Secondary School Students of Bhutan
Authors: Choeda Choeda , Gyeltshen Tashi , Daker Sonam , Gyeltshen Sonam , Wangmo Wangmo , Letho Dorji
Published: February 2020

This study on communicative competence of secondary school students of Bhutan was conducted with the lower, middle and higher secondary school students under four districts Chukha, Samtse, Paro and Thimphu. The study aimed to explore why communicative proficiency was generally perceived low as reported by LaPrarie (2014). Random sampling survey questionnaire was administered to 864 students and purposive sampling interviews conducted with 24 teacher and 2 curriculum developers from Royal Education Council. Other data collection methods included classroom lesson observation and documentary analysis. Simple descriptive analysis for quantitative data and thematic analysis for qualitative data analysis were employed. The study found that majority of the students had low proficiency level in both English and Dzongkha with a few who had higher level. The low communicative competence in both English and Dzongkha has been attributed to the negative influence of social media in which students showed more interested than engaging in academic reading and writing activities. However, the study found the schools organised relevant activities such as literary fest, debates, and speeches, speaking and writing activities to enhance the communication skills. The research recommends activities such as reviewing the curriculum standards, enhancing teachers’ skills to focus on the communicative skills to improve students’ proficiency in communication.
Attitudes and Self-Stigma of overweight teachers concerning obesity in Nueva Ecija
Authors: P. Reyes Ma. Cecilia
Published: February 2020

One of the problems of the Philippines in terms of health is the growing rate of obesity. This paper used a descriptive survey method. A total of 67 educators that are categorized overweight, pre-obese and obese from private and public schools were surveyed around Nueva Ecija. The researcher distributed survey questionnaires and analyzed it through statistical data treatment such as mean and weighted mean. From the tabulated results, the researcher concluded that the respondents to a considerable degree were affected by the factors of obesity-related quality of life. Thus, most of the physiological health and work-related factors affected the respondents occasionally. It is recommended to consult a nutritionist as most of the respondents were almost always afraid of possible complications due to weight problems. In likelihood, the respondents assess the factors of weight self-stigma as usually true. Thus, the researcher recommends to raise self-control in overeating that causes weight problems