bluuebunny/crossref_metadata_2025 huggingface dataset:
Acretismo placentario en el Instituto Nacional Materno Perinatal
Authors: Gonzales-Carrillo Oswaldo , Llanos-Torres Cristina D
Published: January 2019

Objetivo. Determinar las características clínicas y de manejo de los casos de acretismo placentario del 2014 al 2016. Materiales y métodos. Estudio observacional, descriptivo y retrospectivo. Se revisaron todos los casos de acretismo placentario en atendidos en el instituto Nacional Materno Perinatal, entre el 2014 y el 2016. Se identificaron las características clínicas, diagnóstico, manejo médico y quirúrgico.
Perfil clínico de gestantes con amenaza de parto pretérmino que concluyen en parto pretérmino
Authors: Castillo-Castro Evert , Espinola-Sánchez Marcos , Sanca-Valeriano Silvia
Published: January 2019

Objetivo. Describir el perfil clínico de gestantes con amenaza de parto pretérmino que concluyen en parto pretermino. Materiales y métodos. Estudio observacional y descriptivo. Participaron 46 gestantes de 24 a <37 semanas de gestación con amenaza de parto pretérmino cuya gestación concluyo en parto pretérmino, atendidas en el servicio de maternidad del Hospital Víctor Lazarte Echegaray—Essalud de Trujillo durante el periodo mayo a octubre del 2015.
Restricción del crecimiento selectivo intra uterino y riesgo de mortalidad perinatal según sexo fetal
Authors: Limay-Ríos Oscar Antonio , Comettant-Puente María del Carmen , Castillo-Urquiaga Walter , Zárate-Girao Mario , Huertas-Tacchino Erasmo , Ingar-Pinedo Jaime , Ventura-Laveriano Walter
Published: January 2019

Objetivos. Determinar el riesgo de muerte en recién nacidos con diagnóstico de restricción de crecimiento intrauterino selectivo (RCIUs) en embarazo gemelar según el sexo. Materiales y métodos. Estudio analítico, transversal, retrospectivo. La muestra de recién nacidos con diagnóstico de RCIU fue seleccionada en el periodo comprendido entre el 21 de febrero del 2011 al 24 de noviembre del 2014 en el Instituto Nacional Materno Perinatal en donde se incluyeron a 60 491 recién nacidos, de los cuales 58 629 corresponden a embarazos únicos, 1790 de embarazos gemelares (683 recién nacidos con RCIUs; 335 de sexo femenino y 348 de sexo masculino) y 72 de embarazos triples.
Satisfacción de la usuaria en consulta externa del servicio de ginecología en el Instituto Nacional Materno Perinatal
Authors: Ochante-Rementería Jovanna , Hinojosa-Flores Gilda , Ayala-Peralta Félix , Pérez-Aliaga Carlos
Published: January 2019

Objetivos. Determinar el nivel de satisfacción de la usuaria en consulta externa de ginecología. Materiales y métodos. Estudio observacional, descriptivo, retrospectivo y transversal. Encuesta estructurada para 126 pacientes comprendidas de 19 a 65 años de edad atendidas en Consulta Externa de Ginecología en el Instituto Nacional Materno Perinatal.
Manejo de la preeclampsia / eclampsia en el Instituto Nacional Materno Perinatal
Authors: Guevara-Ríos Enrique , Meza-Santibañez Luis
Published: January 2019

La preeclampsia es una enfermedad de carácter progresiva e irreversible que afecta múltiples órganos y debido a que lesiona a la madre y al feto, es responsable de una proporción considerable de muertes maternas y perinatales. Complica el 3 al 22% de los embarazos y es la segunda causa de muerte materna en el Perú en el 2014 con el 38%, y la primera causa de muerte materna en el Instituto Nacional Materno Perinatal con el 43%. El espectro clínico de la preeclampsia varía desde formas leves a severas. Los criterios de diagnóstico de preeclampsia son hipertensión y proteinuria, sin embargo la proteínuria mayor de 5 grs ya no se considera como un criterio de preeclampsia severa. Se hace una revisión de los nuevos aportes en el manejo de la preeclampsia severa y eclampsia y en el manejo de una de sus complicaciones más graves como es la rotura hepática.
La primera fertilización in vitro exitosa en el Instituto Nacional Materno Perinatal. Mayo 2015
Authors: Garnique-Moncada Marco , Barrientos-Marca Ruth , Cipriano-Bernuy Antonio , Carpio-Guzmán Luis Alberto , Rojas-Tenorio Jorge , Quispe-Zúñiga José , Torres Angelo , Mancisidor Isela , Guevara Úrsula
Published: January 2019

La Fertilización in Vitro (FIV), es un procedimiento de Reproducción Asistida de alta complejidad que utilizamos en el manejo de la pareja infértil. El objetivo del presente artículo es la difusión de la primera fertilización in vitro en una Institución Pública como lo es el Instituto Nacional Materno Perinatal, con resultado de nacimiento de 2 Recién Nacidos (RN) normales.
Fractura de clavícula y disociación clínico-radiológico en el recién nacido: reporte de un caso
Authors: Quispe-Condori Custodio Olsen
Published: January 2019

La fractura de clavícula es la lesión ósea más frecuente del recién nacido. Los factores de riesgo son: obstétricos, maternos y fetales. Las manifestaciones clínicas de la fractura de clavícula se hacen evidentes al segundo y tercer día de vida, su diagnóstico requiere de una confirmación radiológica. A veces la radiografía solicitada no contribuye a confirmar el diagnóstico de fractura de clavícula, a pesar del cuadro clínico evidente. Esto se conoce como la disociación clínico radiológico. El manejo de fractura de clavícula debe iniciarse tan pronto como se haya hecho el diagnóstico clínico y tener presente que placa radiográfica es un examen auxiliar, es decir, no siempre se va a apreciar la lesión ósea. Es importante valorar la pericia del evaluador en la toma de decisiones. Se presenta un caso de un recién nacido de parto eutócico con fractura de clavícula y disociación clínico radiológico. El presente trabajo realizado en el Instituto Nacional Materno Perinatal, tiene por objetivo contribuir al conocimiento médico e intercambiar experiencias en el diagnóstico y manejo de un recién nacido con fractura de clavícula y disociación clínico radiológico.
Trisomía parcial 4p por cromosoma 4 recombinante originado por inversión pericéntrica de origen paterno
Authors: Talavera-Vargas-Machuca Sergio , Gamboa-Oré Ismenia , Fajardo-Loo Maria Luisa , Zevallos-Murgado Jackeline , Torres-Gonzales Dina , Linares-Rosales Liza , Contreras-Aguilar Leonor
Published: January 2019

La trisomía parcial 4p, suele originarse de translocaciones entre el cromosoma 4 y otros cromosomas no homólogos o por inversión pericéntrica del cromosoma 4, originando gametos anómalos entre el cromosoma normal y el invertido, obteniéndose un cromosoma recombinante que puede portar duplicidad de segmentos del brazo pequeño (4p) o del brazo largo (4q) siendo este último inviable. Las características fenotípicas de esta condición cursan con retardo mental severo, retraso en el desarrollo psicomotor, anomalías craneofaciales, estrabismo, defectos osteomusculares, defectos cardiacos, criptorquidia y micropene. Describimos el caso de un niño de 1 año 6 meses con retardo en el desarrollo psicomotor y rasgos dismórficos, presentando una duplicación 4p recombinante de origen paterno.Es el primer caso de duplicación 4p hallado en nuestra institución y debido al carácter hereditario, es preciso realizar la consejería a los progenitores y seguimiento del propósitos para su manejo terapéutico y psicológico.
RISK MANAGEMENT IN CONSTRUCTION PROJECT MANAGEMENT
Authors: Schieg Martin
Published: January 2019

By adopting risk management, savings potentials can be realized in construction projects. For this reason, for project managers as well as real estate developers, a consideration of the risk management process is worthwhile. The risk management process comprises 6 process steps, which will be discussed in greater detail below. The integration of a risk management system in construction projects must be oriented to the progress of the project and permeate all areas, functions and processes of the project. In this, particular importance is attached to the risks in the personnel area, for, particularly for enterprises providing highly qualified services, specialized employees are essential for market success.
QUALITY OF INSTITUTIONS AND FOREIGN DIRECT INVESTMENT IN DEVELOPING COUNTRIES: CAUSALITY TESTS FOR CROSS‐COUNTRY PANELS
Authors: Hyun Hea-Jung
Published: January 2019

This paper analyzes the short-run and long-run dynamics between quality of institutions and foreign direct investment (FDI) in the sample of 62 developing countries covering the period 1984–2003. Panel cointegration test and FM OLS (Fully Modified OLS) estimators are used to test for cointegration. For short‐run dynamics, we estimate error correction model using fixed effect OLS and system GMM estimators. Institutional quality and FDI are found to have bi‐directional cointegrating relationship in the long-run. However, there is no evidence in favor of short-run causality between two variables.
SOURCES OF COMPETITIVE ADVANTAGES AND BUSINESS PERFORMANCE
Authors: Strandskov Jesper
Published: January 2019

Based on data from the European meat processing industry three sets of competitive sources on business performance are studied: Firm Specific Advantages (FSAs), Localizational Specific Advantages (LSAs) and Relation Specific Advantages (RSAs). The results indicate that the FSAs and the RSAs are the most important explanatory variables on business performance, however, with strong interaction effects between the two sets of variables. Given the findings, we call for further empirical validation of how the different sets of competitive advantages interact and reinforce each. A closer examination of the nature of the RSAs, ie resource accumulation and development through inter‐firm co‐operation is also needed.
INVESTIGATION OF PARTICULATE MATTER CONCENTRATION IN THE AIR OF ŽVËRYNAS DISTRICT IN VILNIUS
Authors: Baltrėnas Pranas , Morkūnienė Jurgita
Published: January 2019

Reduction of pollution is among priority environmental problems in our country. Real‐time information about the air pollution in the biggest Lithuanian cities and industrical centers is received from the air quality stations every day. It is the main method for the air quality assessment. On the basis of this information it is possible to conclude that concentration of particles in some areas exceeds allowable limits. The concentration of particles in Žirmûnai and Žvërynas districts of Vilnius exceeds the limits too. Assessment of changes in this air quality indicator and forecasting their development is rather complicated as regular measurement of particulate matter concentration (with the particle diameter up to 10 μm) was started at Lithuanian air quality stations only in 2003. The paper describes the methodology of recording particle concentrations in Žvërynas district of Vilnius. The results of particle measurements are compared with a maximum allowable concentration (MAC) of the analyzed pollutant, the results of analysis are given in two‐ and three‐dimensional graphics.
PURIFICATION AND REUSE OF COLOURED TEXTILE WASTEWATER
Authors: Riauka Aurimas , Žemaitaitis Algirdas , Klimavičiūtė Rima , Skrebiškienė Reda , Ramenytė Regina
Published: January 2019

Wastewater of baths after an exhaust dyeing of cotton knitted fabric with reactive dyestuffs, soaping and rinsing was investigated. It was found that the wastewater of rinsing baths after dyeing in a light shade, which had a small amount of dyes and electrolytes, could be used for dyeing or rinsing after dyeing in a dark shade. The dyes present in the wastewater can be removed by treatment with cross‐linked cationic starch (CCS) with a degree of substitution of about 0,3. In all cases wastewater must be filtered before reuse. Such a wastewater was used for dyeing of cotton knitted fabrics in a dark shade with a laboratory apparatus. It was found that the use of wastewater in the dyeing process was risky because in some cases the colour of coloured products did not satisfy colour standards. Filtered wastewater as well as that treated with CCS were used for rinsing after dyeing of cotton and viscose knitted fabrics in a dark shade with reactive dyestuffs in industrial‐scale experiments. The colour of dyed textiles satisfied colour standards, and the colour fastness to rubbing was good.
INFLUENCE OF STEVEDORING OPERATIONS OF LIQUID AND POWDERY FERTILIZERS AT KLAIPEDA STATE SEAPORT ON THE AMBIENT AIR QUALITY
Authors: Baltrėnas Pranas , Kvasauskas Mindaugas , Frőhner Klaus-Dieter
Published: January 2019

Economic operations carried out at Klaipeda State Seaport negatively affect the quality of the ambient air. To assess the atmosphere pollution in northern Klaipeda caused by economic operations at the Port, investigation was carried out from June to November. This paper surveys the influence of stevedoring and transportation of liquid and powdery fertilizers on the ambient air. Measurements of ammonia and phosphorus acid concentrations in the air showed that the concentrations and distribution of ammonia concentrations were for the most part influenced by meteorological conditions – the wind force and relative air humidity – as well as by transportation of liquid fertilizers. The largest excess of the maximum permissible concentration (MPC) of ammonia concentration was recorded in June: at daytime and in the evening it was higher 1,1 time, and at night – 2,2 times. In September, October and November ammonia concentrations in the ambient air did not exceed the MPC. Excess of phosphorus acid concentrations in the ambient air was detected in June (1,2 time at daytime) and July (at daytime and in the evening) in the closest proximity of the Liquid Fertilizer Transhipment Terminal.
APPLICATION OF BACKWARD AIR MASS TRAJECTORY ANALYSIS IN EVALUATING AIRBORNE POLLEN DISPERSION
Authors: Šaulienė Ingrida , Veriankaitė Laura
Published: January 2019

To investigate airborne pollen movement aerobiologists use backward air mass trajectories. In the present paper the peculiarities of airborne birch pollen dispersion are analysed. In 2005 at Šiauliai Aerobiology Station pollen was recorded using Hirst‐type spore trap. The situation of birch bloom in neighbouring European countries was evaluated according to the European Aeroallergen Network database. It was generalized and used to prove long‐range pollen transport. Air mass trajectories were calculated according to the HYSPLIT 4 model the trajectory drawing principle of which is based on the integration of the position of air mass with regard to time. The present study has shown that backward air mass trajectory analysis may be applied in investigating relationship among pollen dispersion, meteorological conditions and air mass transport. It is estimated that at Šiauliai Aerobiology Station the dynamics of pollen concentration is determinated by local flora and airborne pollen long‐range transport. The evaluation of pollen dispersion by the backward air mass trajectory method presented in the paper established precondition to look for possibilities of application of the HYSPLIT 4 model to prepare the forecasts of pollen dispersion.
A FRAMEWORK FOR THE EVALUATION OF HOTEL PROPERTY DEVELOPMENT PROJECTS
Authors: Popovic Gabrijela , Stanujkic Dragisa , Karabasevic Darjan
Published: January 2019

The main goal of the manuscript is to propose the framework that would facilitate the selection of hotel construction projects for an investment based on the application of the WS PLP method. The key reason why the WS PLP method is used is reflected in its ability to more accurately express decision-makers’ stand regarding the desired preference ratings of criteria by incorporating ppr values into the decision-making process. Also, the WS PLP method implies the introduction of the compensation coefficient, which provides a possibility of the decision-maker’s selection between an alternative that has the best matching with the preferred performance ratings expressed through ppr values and the one that has the best overall performance ratings. The applicability and effectiveness of the proposed framework are demonstrated through a real case study on the five types of the hotels that should be constructed on Kopaonik Mountain in Serbia.
The Telltale Heartbeat: Detection and Characterization of Eccentric Orbiting Planets via Tides on Their Host Star
Authors: Penoyre Zephyr , Stone Nicholas C.
Published: January 2019

We present an analytic description of tides raised on a star by a small orbiting body. In particular, we highlight the disproportionate effect of eccentricity and thus the scope for using these tides to detect and characterize the orbits of exoplanets and brown dwarfs. The tidal distortions of the star produced by an eccentric orbit are, in comparison to a circular orbit, much richer in detail and potentially visible from any viewing angle. The magnitude of these variations is much larger than that in a circular orbit of the same semimajor axis. These variations are visible in both photometric and spectroscopic data and dominate other regular sources of phase variability (e.g., reflection and Doppler beaming) over a particularly interesting portion of parameter space. These tidal signatures will be a useful tool for planet detection on their own and, used in concert with other methods, provide powerful constraints on planetary and stellar properties.
Solar Polar Brightening and Radius at 100 and 230 GHz Observed by ALMA
Authors: Selhorst Caius L. , Simões Paulo J. A. , Brajša Roman , Valio Adriana , de Castro C. G. Giménez , Costa Joaquim E. R. , Menezes Fabian , Rozelot Jean Pierre , Hales Antonio S. , Iwai Kazumasa , White Stephen
Published: January 2019

Polar brightening of the Sun at radio frequencies has been studied for almost 50 years and yet a disagreement persists between solar atmospheric models and observations. Some observations reported brightening values much smaller than the expected values obtained from the models, with discrepancies being particularly large at millimeter wavelengths. New clues to calibrate the atmospheric models can be obtained with the advent of the Atacama Large Millimeter/submillimeter Array (ALMA) radio interferometer. In this work, we analyzed the lower limit of the polar brightening observed at 100 and 230 GHz by ALMA, during its Science Verification period, 2015 December 16–20. We find that the average polar intensity is higher than the disk intensity at 100 and 230 GHz, with larger brightness intensities at the south pole in eight of the nine maps analyzed. The observational results were compared with calculations of the millimetric limb brightening emission for two semi-empirical atmospheric models, FAL-C and SSC. Both models presented larger limb intensities than the average observed values. The intensities obtained with the SSC model were closer to the observations, with polar brightenings of 10.5% and 17.8% at 100 and 230 GHz, respectively. This discrepancy may be due to the presence of chromospheric features (like spicules) at regions close to the limb.
Understanding the Limitations of Gyrochronology for Old Field Stars
Authors: Metcalfe Travis S. , Egeland Ricky
Published: January 2019

Nearly half a century has passed since the initial indications that stellar rotation slows while chromospheric activity weakens with a power-law dependence on age, the so-called Skumanich relations. Subsequent characterization of the mass-dependence of this behavior up to the age of the Sun led to the advent of gyrochronology, which uses the rotation rate of a star to infer its age from an empirical calibration. The efficacy of the method relies on predictable angular momentum loss from a stellar wind entrained in the large-scale magnetic field produced by global dynamo action. Recent observational evidence suggests that the global dynamo begins to shut down near the middle of a star’s main-sequence lifetime, leading to a disruption in the production of large-scale magnetic field, a dramatic reduction in angular momentum loss, and a breakdown of gyrochronology relations. For solar-type stars this transition appears to occur near the age of the Sun, when rotation becomes too slow to imprint Coriolis forces on the global convective patterns, reducing the shear induced by differential rotation, and disrupting the large-scale dynamo. We use data from Barnes to reveal the signature of this transition in the observations that were originally used to validate gyrochronology. We propose that chromospheric activity may ultimately provide a more reliable age indicator for older stars, and we suggest that asteroseismology can be used to help calibrate activity–age relations for field stars beyond the middle of their main-sequence lifetimes.
The Optical Variability of Supermassive Black Hole Binary Candidate PG 1302–102: Periodicity and Perturbation in the Light Curve
Authors: Kovačević Andjelka B. , Popović Luka Č. , Simić Saša , Ilić Dragana
Published: January 2019

The photometric light curve of PG 1302–102 shows periodic variability, which makes this object one of the most plausible supermassive black hole binary candidates. Interestingly, the most recent study of its updated optical light curve reports a decrease in the significance of periodicity, which may suggest that the binary model is less favorable. Here we model the PG 1302–102 light curve, spanning almost 20 yr, with a supermassive black hole binary system in which a perturbation in the accretion disk of a more massive component is present. Our model reproduces well the observed light curve, with a slight perturbation of a sinusoidal feature, and predicts that a slightly larger period than previously reported, of about 1899 days, could arise owing to a cold spot in the disk of a more massive component of a close, unequal-mass (

) black hole binary system. The light curve resembles the pattern of a sinusoid-like shape within a few years, which could be confirmed by future observations. In addition, using our hybrid method for periodicity detection, we show that the periods in the observed (1972 ± 254 days) and modeled (1873 ± 250 days) light curves are within 1σ, which is also consistent with our physical model prediction and with previous findings. Thus, both the periodic nature and its slight fluctuation of the light curve of PG 1302–102 are evident from our physical model and confirmed by the hybrid method for periodicity detection.
Testing the Detectability of Extraterrestrial O2 with the Extremely Large Telescopes Using Real Data with Real Noise
Authors: Serindag Dilovan B. , Snellen Ignas A. G.
Published: January 2019

The future extremely large telescopes (ELTs) are expected to be powerful tools to probe the atmospheres of extrasolar planets using high-dispersion spectroscopy, with the potential to detect molecular oxygen in Earth-like planets transiting nearby late-type stars. So far, simulations have concentrated on the optical 7600 Å A-band of oxygen using synthetic noise distributions. In this Letter, we build upon previous work to predict the detectability of molecular oxygen in nearby, temperate planets by using archival, time-series data of Proxima Centauri from the high-dispersion Ultraviolet and Visual Echelle Spectrograph (UVES) on ESO’s Very Large Telescope (VLT). The brightest transiting M-dwarfs are expected to be about 25 times fainter than Proxima, a factor that is similar to the difference in light-gathering power between the VLT and the future ELTs. By injecting synthetic oxygen transmission signals into the UVES data, the

detectability can be studied in the presence of real data with real noise properties. Correcting for the relatively low throughput (∼4%) of the Proxima spectra to an assumed 20% throughput for a high-dispersion spectrograph on the European ELT, we find that the molecular oxygen signature of an Earth-twin transiting a nearby (d ≈ 7 pc) M5V star can be detected in 20–50 transits (a total of 70–175 hr of observing time). This estimate, using more realistic simulations, is close to previous predictions. Novel concepts that increase the instrumental throughput can further reduce the time span over which such observations need to be taken.
Business model evolution of customer care services
Authors: Majava Jukka , Isoherranen Ville
Published: January 2019

Purpose: Servitization is a rising trend as companies look for new revenue streams. This paper presents a study of customer care business model evolution in the smartphone industry. The paper identifies key changes in the business models during recent years and their implications for companies seeking after-sales service excellence and new revenue sources.Design/methodology/approach: The research approach is built on the literature of product-service offerings, servitization, and business models. The empirical part is based on a multiple case study of former Nokia mobile phone business, the Apple iPhone, and Google Android.Findings: Three different customer care business models and an analysis of the changes in the smartphone industry are presented. This paper demonstrates how after-sales services have become increasingly important in generating new revenue. Moreover, the nature of after-sales services has fundamentally changed in the industry.Research limitations/implications: Due to the careful selection of the cases that represent the studied industry well, the results provide valuable insights for practitioners and researchers involved in developing after-sales service offerings in the mobile industry. However, a case study research approach may not offer a generalized picture of this phenomenon in other industries.Originality/value: A novel analysis of customer care evolution in the smartphone industry is presented. In addition, the study demonstrates that applying the concept of business models to after-sales services provides new insights into these services and their roles in business.
El puente de Alfonso XIII de Sevilla: análisis patrimonial
Authors: Gil O.
Published: January 2019

El puente de Alfonso XIII de Sevilla fue construido en el extremo norte del canal del mismo nombre o Corta de Tablada, inicio de un ambicioso programa de ampliación del puerto de Sevilla. Fue inaugurado en 1926, poco antes de la Exposición Iberoamericana que se desarrolló en el sector sur de la ciudad, hacia donde se ampliaba dicha zona portuaria. El puente, móvil, fue utilizado eficazmente hasta el siguiente evento universal en 1992 cuando, viejo y obsoleto, fue sustituido por otro nuevo contiguo. Poco tiempo después fue desmontado y la estructura metálica yace lastimosamente en tierra, en la margen del río aguas abajo, trasladada poco más de un kilómetro de distancia de su ubicación original.

Este estudio tiene como objeto la exposición del análisis patrimonial del puente, apoyado en una documentación gráfica específica, ha servido para reflexionar y concluir sobre su posible reutilización y condiciones de reimplantación en el paisaje.
Towards Simulation Aided Online Teaching: Material Design for Applied Fluid Mechanics
Authors: Altuger-Genc Gonca , Han Yue , Genc Yegin
Published: January 2019

Learning is shifting from synchronous in-class settings to asynchronous online platforms in an attempt to make education accessible to wider audience. However, certain vital components of engineering education, such as laboratory work and hands-on practices, are harder to conduct online. Understanding how technology can help offering such components online can impact the quality of online education a great deal. The goal of this study is to improve the effectiveness of online courses in engineering. Particularly, we aim to transform some of the hands-on practices that are fundamental for engineering education into online setting. We first explored existing literature and found that real-time experimentation can be carried out with the help of online modules. We then designed two simulations for a fluid mechanics lab. We expect these simulations to be used to support teaching and evaluation of fluid mechanics through various assignments that utilize these simulations.  This study surveys how online modules have been studied in effort to relax the time and location constraints of in-class education. Drawing upon the literature review it proposes a novel approach to incorporate simulations to ground learning of abstract concepts such as buoyancy.
Computer Assisted E-Laboratory using LabVIEW and Internet-of-Things Platform as Teaching Aids in the Industrial Instrumentation Course
Authors: H. Muhammad Asraf , K.A. Nur Dalila , M.Y. Zakiah , Z.A. Amar Faiz , M.T. Nooritawati
Published: January 2019

Nowadays, the emerging trend of utilizing the internet technology to improve teaching methods has caught the attention of many researchers. The education sector is the particular sector which has been getting the influence to implement more advanced teaching methods, and this can be seen through the application of the monitoring system, remote control, and even data acquisition through the Internet. Therefore, this study demonstrates the development of the interactive system via the Internet for the remote access to the equipment known as LD-Didactic temperature system which is used in the laboratory. This particular system is developed using an Arduino-Espresso8266 and LabVIEW platform which is integrated with Blynk software in order to remotely control the Proportional, Integral, and Derivative (PID) setting. Furthermore, the proposed framework is specifically focused on the PID temperature control system, which allows students to learn and simulate the concept of the control scheme by adjusting suitable parameter gains. Moreover, the system evaluation demonstrates the functionality and ability of direct controlling, monitoring, and tracking in order to achieve the targeted temperature control. These three strategies ensure the reproducibility of the experiment for the implementation in different systems. Last but not least, the designed system illustrates that full integration of the system with the internet platform provides students with the underlying knowledge of fundamentals, graphic visualization, and simulation practices. These will subsequently facilitate the learning process of the students.
Integrated Production and Logistics Planning
Authors: El Khayyam Yassine , Herrou Brahim
Published: January 2019

Industrial planning systems have undergone considerable evolution in recent decades, starting from MRP, then ERP, and finally advanced planning and scheduling systems (APS). This evolution took place by dint of the evolution of information and communication technologies, and also due to industrial stakeholder integration tendency forming global supply chains in order to optimize costs and lead times. The purpose of this article is to present a new integrated short and medium term planning approach for upstream logistics (necessary for procurement) and production, this new approach is the MLRP "Manufacturing and Logistic Requirement Planning ". We introduce in this paper a new bill of materials structure that is adapted to the MLRP, and then we present the proposed algorithm which allows determining production and logistics needs for all bills of materials components. Finally, we present the proposed information system that implements the MLRP.
Path Planning for Unmanned Underwater Vehicle Based on Improved Particle Swarm Optimization Method
Authors: Xu Jianhua , Gu Hao , Liang Hongtao
Published: January 2019

Path planning of Unmanned Underwater Vehicle (UUV) is of considerable significance for the underwater navigation, the objective of the path planning is to find an optimal collision-free and the shortest trajectory from the start to the destination. In this paper, a new improved particle swarm optimization (IPSO) was proposed to process the global path planning in a static underwater environment for UUV. Firstly, the path planning principle for UUV was established, in which three cost functions, path length, exclusion potential field between the UUV and obstacle, and attraction potential field between UUV and destination, were considered and developed as an optimization objective. Then, on the basis of analysis traditional particle swarm optimization (PSO), the time-varying acceleration coefficients and slowly varying function were employed to improve performance of PSO, time-varying acceleration coefficients was utilized to balance the local optimum and global optimum, and slowly varying function was introduced into the updating formula of PSO to expand search space and maintain particle diversity. Finally, numerical simulations verify that, the proposed approach can fulfill path planning problems for UUN successfully.
U-net Network for Building Information Extraction of Remote-Sensing Imagery
Authors: Li Jingtan , Xu Maolin , Xiu Hongling
Published: January 2019

With the resolution of remote sensing images is getting higher and higher, high-resolution remote sensing images are widely used in many areas. Among them, image information extraction is one of the basic applications of remote sensing images. In the face of massive high-resolution remote sensing image data, the traditional method of target recognition is difficult to cope with. Therefore, this paper proposes a remote sensing image extraction based on U-net network. Firstly, the U-net semantic segmentation network is used to train the training set, and the validation set is used to verify the training set at the same time, and finally the test set is used for testing. The experimental results show that U-net can be applied to the extraction of buildings.
Reengineering the Communication Process to Reduce Patient No-Show Rates in Hospital Outpatient Clinics
Authors: Al Shammari Mastourah D. , Al Harbi Talal , Al Saawi Abdulmohsen , Al-Surimi Khaled
Published: January 2019

Background: Patient “no-shows” cause significant concern for healthcare organizations as it affects continuity of care provided to the patient, quality of care, waiting times for new patients, and wastes clinic resources. This project aimed to reduce the rate of no-shows in a general pediatric clinic to less than 10% to be consistent with the international benchmark range of 5%–10% of primary care clinics. Materials and Methods: A multidisciplinary team was formed to address the rate of no-shows using a quality improvement–driven approach in August 2017. Retrospective data analysis showed that 33% of patients who were referred to the general pediatric clinic at King Abdullah Specialist Children Hospital did not show up for their appointments in March 2017. Results: The impact of reengineering the patients' appointment communication process led to a noticeable reduction in the rate of no-shows in the general pediatric clinic, reaching 14% in 1 month (November to December 2017) compared with the baseline of 33%. Data analysis for the post-intervention period showed a progressive decline in the no-show rate, reaching below 10% in the general pediatric clinic, indicating a big shift in the rate of no-shows among the patients attending the general pediatric clinic. Conclusion: Reengineering the communication process and increasing awareness to update contact information are effective strategies for improving communication with patients and reducing the rate of no-shows for scheduled appointments. The next step is to share project findings with healthcare workers and leaders to sustain the improvement.
Wastewater treatment using adsorption process in column for agricultural purposes
Authors: Sales Flávia Rhuana Pereira , Serra Reynaldo Borges Galvão , Figueirêdo Gesivaldo Jesus Alves de , Hora Paulo Henrique Almeida da , Sousa Antonio Cícero de
Published: January 2019

Water is essential for life, important for the ecosystem and it is in great demand due to its scarcity. This study explored the reuse of the wastewater of the Water Treatment Plant in Gramame for agricultural purposes. A qualitative and quantitative investigation of the effluent was carried out through the characterization of its physical and chemical parameters, comparing the results to what is allowed by the current legislation, CONAMA Resolution 357/2005. After this process, the activated charcoal of coco-da-baia mesocarp, adsorbent material, was prepared and tested in a filter system in a column with a continuous flow and ascendant entrance, in which the kinetic effect was evaluated. This technique was evaluated by correlating the reduced values in the adsorption material, respecting the initial effluent concentration, obtaining a reduction of 50% in the hardness, 87.5% in chloride and 66.6% in acidity. These results verified the adequacy of the technique in potential hydrogenation (pH) and abrupt reduction of color and turbidity. This treatment is suggested to qualify the effluent for use in agricultural, safe for humans and the environment. The adsorbent substrate efficiency was verified by correlating it with the Thomas isothermal model.
Quantification study of Azithromycin drugs in soil, by the infrared technique with Fourier Transform (IFTR)
Authors: Miranda Amanda Carvalho , Klepa Rogerio Bonette , Farias Thiago Michel Brito de , Santana José Carlos Curvelo
Published: January 2019

Some classes of drugs represent greater criticality as environmental contamination; antibiotics in general represent the most potent contaminants and cause greater damage to the environment. The purpose of this work is to quantify the percentage of soil contamination by Azithromycin in presentations of 500 mg, through the application of Infrared Spectroscopy with Fourier Transform. It was verified that the drug exerts significant impacts to the environment, even in the characteristic of micropollutant, and that its extraction when performed with Pure Acetonitrile allows its residues in soil samples to be satisfactorily quantified.
A study of synthetic 13CH4 retrievals from TROPOMI and Sentinel 5/UVNS Part 1: non scattering atmosphere
Authors: Malina Edward , Hu Haili , Landgraf Jochen , Veihelmann Ben
Published: January 2019

Abstract. Retrievals of methane isotopologues have the potential to differentiate between natural and anthropogenic methane sources types, which can provide much needed information about the current global methane budget. We investigate the feasibility of retrieving the second most abundant isotopologue of atmospheric methane (13CH4, roughly 1.1 % of total atmospheric methane) from the Shortwave Infrared (SWIR) channels of the future Sentinel 5/UVNS and current Copernicus Sentinel 5 Precursor TROPOMI instruments. With the intended goal of calculating the δ13C ratio, we assume that a δ13C uncertainty of better than 10 ‰ is sufficient to differentiate between source types, which corresponds to a 13CH4 uncertainty of <0.2 ppb. Using the well established Information Content analysis techniques and assuming clear sky, non-scattering conditions, we find that the SWIR3 (2305–2385 nm) channel on the TROPOMI instrument can achieve a mean uncertainty of <1 ppb, while the SWIR1 channel (1590–1675 nm) on the Sentinel 5 UVNS instrument can achieve <0.68 ppb. These uncertainties combined with modest spatial and/or temporal averaging techniques can reduce δ13C uncertainty to the target magnitude or better. However, we find that 13CH4 retrievals are highly sensitive to errors in a priori knowledge of temperature and pressure, and accurate knowledge of these profiles are required before 13CH4 retrievals can be performed on TROPOMI and future Sentinel 5/UVNS data.
Monitoring changes in forestry and seasonal snow using surface albedo during 1982–2016 as an indicator
Authors: Manninen Terhikki , Aalto Tuula , Markkanen Tiina , Peltoniemi Mikko , Böttcher Kristin , Metsämäki Sari , Anttila Kati , Pirinen Pentti , Leppänen Antti , Arslan Ali Nadir
Published: January 2019

Abstract. The surface albedo time series, CLARA-A2 SAL, was used to study trends in the
snowmelt start and end dates, the melting season length and the albedo value
preceding the melt onset in Finland during 1982–2016. In addition, the melt
onset from the JSBACH land surface model was compared with the timing of
green-up estimated from Moderate Resolution Imaging Spectroradiometer (MODIS)
data. Moreover, the melt onset was compared with the timing of the greening
up based on MODIS data. Similarly, the end of snowmelt timing predicted by
JSBACH was compared with the melt-off dates based on the Finnish
Meteorological Institute (FMI) operational in situ measurements and the
Fractional Snow Cover (FSC) time-series product provided by the EU FP7
CryoLand project. It was found that the snowmelt date estimated using the
20 % threshold of the albedo range during the melting period corresponded
well to the melt estimate of the permanent snow layer. The longest period,
during which the ground is continuously half or more covered by snow, defines
the permanent snow layer (Solantie et al., 1996). The greening up followed
within 5–13 days the date when the albedo reached the 1 % threshold of
the albedo dynamic range during the melting period. The time difference
between greening up and complete snowmelt was smaller in mountainous areas
than in coastal areas. In two northern vegetation map areas (Northern
Karelia–Kainuu and Southwestern Lapland), a clear trend towards earlier
snowmelt onset (5–6 days per decade) and increasing melting season length
(6–7 days per decade) was observed. In the forested part of northern
Finland, a clear decreasing trend in albedo (2 %–3 % per decade in
absolute albedo percentage) before the start of the melt onset was observed.
The decreasing albedo trend was found to be due to the increased stem volume.
A global Budyko model to partition evaporation into interception and transpiration
Authors: Mianabadi Ameneh , Coenders-Gerrits Miriam , Shirazi Pooya , Ghahraman Bijan , Alizadeh Amin
Published: January 2019

Abstract. Evaporation is a very important flux in the hydrological cycle and links the water and energy balance of a catchment. The Budyko framework is often used to provide a first order estimate of evaporation, since it is a simple model where only rainfall and potential evaporation is required as input. Many researchers have tried to improve the Budyko framework by including more physics and catchment characteristics into the original equation. However, this often resulted in additional parameters, which are unknown or difficult to determine. In this paper we present an improvement of the previously presented Gerrits' model (Analytical derivation of the Budyko curve based on rainfall characteristics and a simple evaporation model in Gerrits et al., 2009 WRR), whereby total evaporation is calculated on the basis of simple interception and transpiration thresholds in combination with measurable parameters like rainfall dynamics and storage availability from remotely sensed data sources. While Gerrits' model was investigated for 10 catchments with different climate conditions and some parameters were assumed to be constant, in this study we applied the model on the global scale and fed with remotely sensed input data. The output of the model has been compared to two complex land–surface models STEAM and GLEAM, as well as the database of Landflux-EVAL. Our results show that total evaporation estimated by Gerrits' model is in good agreement with Landflux-EVAL, STEAM and GLEAM. Results also show that Gerrits' model underestimates interception in comparison to STEAM and overestimates it in comparison to GLEAM, while for transpiration the opposite is found. Errors in interception can partly be explained by differences in the interception definition that successively introduce errors in the calculation of transpiration. Comparing to the Budyko framework, the model showed a good performance for total evaporation estimation.
Acquisition of the Co-operative Principle by Algerian Arabic-Speaking Children
Authors: Amina Zerouali , Hamdan Jihad
Published: January 2019

In the realm of language acquisition due attention was given to some linguistic areas like phonology and syntax probably at the expense of others such as pragmatics. The aim of this paper is to explore the age at which Algerian Arabic-speaking preschoolers acquire the maxims of the Cooperative Principle developed by Grice (1975), and the order in which these maxims are acquired. Data were elicited from 36 children between the ages of 3 and 5 years who were required to make acceptability judgment of statements uttered in a puppet video-show to indicate their adherence to or violation of the Cooperative Principle. The results of the study have shown that the Cooperative Principle emerged in preschoolers at the age of 3 years where they were able to identify the Cooperative Principle violation. However, their performance improved with age. The results have also demonstrated that preschoolers acquire the maxim of relevance first, followed by the maxim of quality, the maxim of manner and finally the maxim of quantity.
Acceptability of at-issue co-speech gestures under contrastive focus
Authors: Esipova Maria
Published: January 2019

The status of content-bearing co-speech gestures, i.e., gestural adjuncts co-occurring with the verbal expressions they adjoin to, has recently become a matter of debate in formal semantics and pragmatics (Ebert & Ebert 2014; Ebert 2017; Tieu et al. 2017; 2018; Esipova 2018; Schlenker 2018; Zlogar & Davidson 2018). The general tendency has been to claim that co-speech gestures by default make not-at-issue contributions, however, the existing analyses differ in whether they in principle allow for at-issue interpretations of co-speech gestures and, if yes, in how much cost such at-issue interpretations can incur. In this study I use an acceptability judgement task to investigate the acceptability of at-issue interpretations of co-speech gestures forced by contrastive focus, as well as some factors that can potentially affect that acceptability. I conclude that while the overall results are in principle compatible with any analysis that posits a (strong) bias against at-issue interpretations of co-speech gestures, further inspection of individual variation in judgement patterns allows us to argue against analyses in which the level of such bias is fixed across speakers. In particular, the variation data can be taken as evidence against the analysis of co-speech gestures as Pottsian (2005) supplements akin to appositives (Ebert & Ebert 2014; Ebert 2017). As for the factors that can potentially affect the acceptability of at-issue interpretations of co-speech gestures under contrastive focus, neither the type of content encoded by the gesture, nor emphatic production of co-speech gestures have been found to have an effect.
Simplified Machine Diagnosis Techniques in Absolute Deterioration Factor by Using the 2nd Order AR Model
Authors: Takeyasu Kazuhiro
Published: January 2019

In order to make machine diagnosis, the method of calculating Kurtosis or Bicoherence was utilized. Calculating system parameter distance was also utilized applying time series data to Autoregressive (AR) model or Autoregressive Moving Average (ARMA) model.In this paper, simplified calculation method of autocorrelation function is introduced and it is utilized for the 2nd order AR model identification. An absolute deterioration factor such as Bicoherence is also introduced. Furthermore, Mahalanobis’ generalized distance is introduced by the relationship with system parameter distance. Three cases in which the rolling elements number is nine, twelve and sixteen are examined and compared. Machine diagnosis can be executed by this simplified calculation method of system parameter distance. Good results are obtained.