bluuebunny/crossref_metadata_2025 huggingface dataset:
Stars that Move Together Were Born Together
Authors: Kamdar Harshil , Conroy Charlie , Ting Yuan-Sen , Bonaca Ana , Smith Martin C. , Brown Anthony G. A.
Published: October 2019

It is challenging to reliably identify stars that were born together outside of actively star-forming regions and bound stellar systems. However, conatal stars should be present throughout the Galaxy, and their demographics can shed light on the clustered nature of star formation and the dynamical state of the disk. In previous work we presented a set of simulations of the Galactic disk that followed the clustered formation and dynamical evolution of 4 billion individual stars over the last 5 Gyr. The simulations predict that a high fraction of comoving stars with physical and 3D velocity separation of Δr < 20 pc and Δv < 1.5 km s−1 are conatal. In this Letter, we use Gaia DR2 and LAMOST DR4 data to identify and study comoving pairs. We find that the distribution of relative velocities and separations of pairs in the data is in good agreement with the predictions from the simulation. We identify 111 comoving pairs in the solar neighborhood with reliable astrometric and spectroscopic measurements. These pairs show a strong preference for having similar metallicities when compared to random field pairs. We therefore conclude that these pairs were very likely born together. The simulations predict that conatal pairs are born in clusters that follow the overall cluster mass function and in relatively young (<1 Gyr) star clusters. Gaia will eventually deliver well-determined metallicities for the brightest stars, enabling the identification of thousands of conatal pairs due to disrupting star clusters in the solar neighborhood.
First report on seroprevalence and risk factors of Toxoplasma gondii infection in sheep and goats in North Lebanon
Authors: El Safadi Dima , Abi Chahine Dany , Al Tarraf Alissar , Raii Omar , Mesto Karim , Ismail Mohamad Bachar , Hamze Monzer
Published: October 2019

Introduction: Toxoplasmosis is of dual importance in both public and veterinary health due to the respective risk of transplacental transmission in primo-infected pregnant women and economic losses caused by abortions in mammals. One of the main routes of Toxoplasma gondii transmission to humans is the consumption of raw or undercooked meats containing parasitic cysts. Here, we performed the first epidemiological study to determine the seroprevalence and the risk factors of toxoplasmosis in livestock in Lebanon.

Methodology: Using a modified agglutination test with a cut-off of 1:40, we tested the positivity rate of Immunoglobulin G antibodies in the sera of 100 sheep and 80 goats collected from 18 different livestock farms located in North Lebanon between March and June 2018.

Results: Anti-Toxoplasma gondii IgG antibodies were detected in 42% of sheep and 34% of goats. Adults (> 1 year) were significantly more infected by T. gondii than the lambs (< 1 year) in both species (p < 0.05).

Conclusions: These findings indicated that food animals are highly exposed to T. gondii in Lebanon and could be potentially a major risk factor of T. gondii infection to humans. Consequently, national prophylactic strategies should be implemented to control and to prevent T. gondii transmission between animals and humans.
High prevalence of TEM, VIM, and OXA-2 beta-lactamases and clonal diversity among Acinetobacter baumannii isolates in Turkey
Authors: Asgin Nergis , Otlu Baris , Cakmakliogullari Elcin Kal , Celik Betul
Published: October 2019

Introduction: Acinetobacter baumannii is an opportunistic pathogen that causes nosocomial infections with high mortality. Treatment options are limited owing to its resistance to numerous antibiotics. Here, we sought to determine the antibiotic susceptibilities of A. baumannii isolates, investigate clonal relationship among the strains, and determine the frequency of beta-lactamase resistance genes.

Methodology: The identification and antibiotic susceptibilities of 69 A. baumannii strains were determined using a BD-Phoenix automated system. The presence of blaOXA-2, blaOXA-10, blaOXA-23, blaOXA-24/40, blaOXA-51, blaOXA-58, blaTEM, blaSHV, blaIMP, blaVIM, and blaGIM genes were investigated using polymerase chain reaction (PCR), and clonal relatioships among the isolates were determined using pulsed-field gel electrophoresis (PFGE).

Results: All strains were resistant to ampicillin–sulbactam, gentamicin, cefepime, ciprofloxacin, and ceftriaxone. While 65 of the 69 strains (94.2%) were resistant to piperacillin-tazobactam, amikacin, imipenem, and meropenem, all strains were susceptible to tigecycline and colistin. The frequencies of blaOXA-51, blaOXA-23, blaTEM, blaOXA-2, blaVIM, and blaSHV were 100%, 94.2%, 53.6%, 21.7%, 14.5%, and 2.9%, respectively. Based on PFGE results, 56 of the 69 strains were clonally related, and the clustering rate was 81.2%. No common outbreak isolate was detected.

Conclusions: The most prevalent OXA genes were blaOXA-51, blaOXA-23, and blaOXA-2. Furthermore, blaTEM, blaSHV, and blaVIM, which are common in Enterobacterales and Pseudomonas spp, were detected, suggesting horizontal gene transfer had occurred between bacteria. No single clone outbreak was detected by PFGE. However, multiclonal spread and the high clustering rate suggest cross-contamination. Therefore, in future, more effective infection control measures must be implemented.
Synsepalum chimanimani (Sapotaceae), a new species from the Chimanimani Mountains of Mozambique and Zimbabwe, with notes on the botanical importance of this area
Authors: Rokni Saba , Wursten Bart , Darbyshire Iain
Published: October 2019

Synsepalum chimanimani S.Rokni & I.Darbysh., sp. nov., a small tree endemic to the forests of the southern foothills of the Chimanimani Mountains of Mozambique and Zimbabwe, is described and illustrated. The differences in morphology and distribution between the new species and the related S. kaessneri and S. muelleri, with which it has been confused, are clarified. The new species is globally Endangered due to ongoing habitat loss within its restricted range. The botanical importance and conservation of the Chimanimani foothills is also discussed, and they are highlighted as a candidate Important Plant Area.
Characteristics of Takayasu Arteritis Patients with Severe Ischemic Events
Authors: Yu Richard Ying , AlSolimani Roaa , Khalidi Nader , Pagnoux Christian , Barra Lillian
Published: October 2019

Objective.

Takayasu arteritis (TA) is a rare large-vessel vasculitis that puts patients at high risk of developing severe ischemic events (SIE). Outcomes for TA patients with SIE are poorly understood. We aim to describe the characteristics of TA patients experiencing SIE.

Methods.

All TA patients with at least 1 followup visit seen between 1988 and 2015 were included from 3 academic centers in Ontario, Canada. Diagnosis was based on American College of Rheumatology criteria, physician opinion, and vascular imaging. SIE were defined as cerebrovascular accident (CVA), acute coronary syndrome (ACS), ischemic cardiomyopathy, ischemic blindness, and/or ischemic bowel or limb requiring surgery.

Results.

Of the 52 patients with TA included in the study, 51 (98%) were female and 22 (42%) were of European descent. The mean age was 31 (SD 12) at the time of diagnosis and the followup time was 6 years (SD 5). Fifteen (29%) experienced an SIE: 5 CVA, 5 ACS, 1 ischemic cardiomyopathy, and 4 limb ischemia. Thirteen out of 15 SIE (87%) occurred at or before diagnosis. Patients with SIE were more likely than those without SIE to be started on corticosteroids combined with immunosuppressants (p = 0.04) and antiplatelet agents (p = 0.004). Outcomes including disease activity and damage scores were similar between patients with and without SIE.

Conclusion.

SIE are common in patients with TA and occur early in the disease. With aggressive treatment, patients with SIE had a favorable prognosis.
Learning ecologies in online students with disabilities
Authors: Rodrigo Covadonga , Tabuenca Bernardo
Published: October 2019

E-Learning environments are enhancing both their functionalities and the quality of the resources provided, thus simplifying the creation of learning ecologies adapted for students with disabilities. The number of students with disabilities enrolled in online courses is so small, and their impairments are so specific that it becomes difficult to quantify and identify which specific actions should be taken to support them. This work contributes to scientific literature with two key aspects: 1) It identifies which barriers these students encounter, and which tools they use to create learning ecologies adapted to their impairments; 2) It also presents the results from a case study in which 161 students with recognised disabilities evaluate the efficiency and ease of use of an online learning environment in higher education studies. The work presented in this paper highlights the need to provide multimedia elements with subtitles, text transcriptions, and the option to be downloadable and editable so that the student can adapt them to their needs and learning style.

Los entornos de aprendizaje en línea están mejorando sus funcionalidades y la calidad de los recursos, facilitando que estudiantes con discapacidad puedan crear y adaptar sus propias ecologías de aprendizaje. Normalmente, el número de estudiantes con discapacidad matriculados es tan residual y sus discapacidades tan particulares, que resulta difícil identificar y cuantificar qué medidas de asistencia son relevantes para este colectivo en general. El objetivo de este trabajo es hacer entender cómo aprenden los estudiantes en entornos en línea dependiendo de su discapacidad y de las características del entorno. Consistentemente, se definen cinco ecologías de aprendizaje que son más frecuentes. Este trabajo contribuye a la literatura científica en dos aspectos fundamentales: 1) identificar qué barreras se encuentran, qué herramientas de apoyo utilizan los estudiantes online con discapacidad y cómo las combinan para formar ecologías de aprendizaje adaptadas a discapacidades específicas; 2) presentar los resultados en los que 161 estudiantes con discapacidad reconocida evalúan la eficiencia y facilidad de uso de un entorno de aprendizaje online en el ámbito universitario. Se resalta la necesidad de proveer elementos multimedia con subtítulos, transcripciones de texto, y la opción de que sean descargables y editables para que el estudiante pueda adaptarlos a sus necesidades y estilo de aprendizaje.
Positive or negative communication in social activism
Authors: Pinazo-Calatayud Daniel , Nos-Aldas Eloisa , Agut-Nieto Sonia
Published: October 2019

This study analyses the role of communication in social activism from models that surpass the mere emotional reaction, prior belief reinforcement or brand identification. This paper tests the hypothesis that a message focused on the cause (and its results) will motivate a previously sensitized audience depending on their interactions with source favorability. The methodology is based on the design of a bifactor experimental action result study 2 (failure versus success) x 2 valences (favorable versus unfavorable source) with the participation of 297 people who are pro-avoidance of evictions. The results allow us to infer that the messages from sources hostile to the cause that report negative results have the potential to emotionally and behaviorally motivate activists to a greater extent than messages with more positive results from favorable sources. The conclusions point to the dialogue between social injustice frames and pro-cause action emotions as a way to increase social mobilization. The theoretical and empirical implications of these findings are discussed in the present-day context of social media prevalence.

Esta investigación analiza el papel de la comunicación en el activismo social desde modelos que superen la mera reacción emocional, el refuerzo de creencias previas o la identificación con la marca. Este estudio pone a prueba la hipótesis de que un mensaje que centre la atención en la causa (en sus resultados) motivará a una audiencia previamente sensibilizada en favor de dicha causa cuando interactúe con la favorabilidad de la fuente. Se ha diseñado un estudio experimental bifactorial 2 resultado de la acción (fracaso versus éxito) x 2 valencia (fuente favorable versus fuente desfavorable) con la participación de 297 personas pro-evitación de desahucios. Los resultados permiten deducir que los mensajes emitidos por fuentes hostiles para la causa que informen de resultados negativos tienen el potencial de motivar afectiva y conductualmente a los activistas en mayor medida que mensajes con resultados más positivos en fuentes favorables. Las conclusiones finales señalan al diálogo entre marcos discursivos de injusticia social y emociones de acción pro-causa como vía para incrementar la movilización social. Se discuten las implicaciones teórico-prácticas de estos resultados en el contexto actual de predominio de redes sociales.
Non-Dimensionalisation of Lateral Distances Between Vessels of Dissimilar Sizes for Interaction Effect Studies
Authors: Jayarathne N , Ranmuthugala D , Leong Z , Fei J
Published: October 2019

To date, most of the hydrodynamic interaction studies between a tug and a ship during ship assist manoeuvers have been carried out using model scale investigations. It is however difficult to establish how well results from these studies represent full scale interaction behaviour. This is further exacerbated by the lack of proven methodologies to non-dimensionalise the relative distances between the two vessels, enabling the comparison of model and full scale interaction effect data, as well as between vessels of dissimilar size ratios. This study investigates a suitable correlation technique to non-dimensionalise the lateral distance between vessels of dissimilar sizes, and a scaling option for interaction effect studies. It focuses on the interaction effects on a tug operating around the forward shoulder of a tanker at different lateral distances during ship assist operations. The findings and the non-dimensioning method presented in this paper enable the interaction effects determined for a given ship-to-tug ratio to be used to predict the safe operational distances for other ship-to-tug ratios.
COMPUTATIONAL AND EXPERIMENTAL ANALYSIS OF TOWED-WATER POWER GENERATORS
Authors: Spall R E , Maughan R , Ewton B
Published: October 2019

Towed-water power generators are used in long-distance sailing to generate power for charging battery banks. A basic configuration consists of a spinning turbine towed behind the boat and attached to an alternator or generator via a torque line. In the present work, a series of two- through six-blade, seven-inch-diameter, six-inch-pitch turbines were tested both in a water tunnel and using computational fluid dynamics techniques. Turbine rotation rates achieved in the water tunnel for both an alternator and generator were measured at a nominal speed of 3 m/s. Turbine torque vs. rotation rate results were obtained by solving the Reynolds-averaged Navier-Stokes (RANS) equations for turbines within the water tunnel, and unconfined turbines. RANS results were plotted against generator and alternator torque curves to predict operating rotation rates and associated power generation. Predicted rotation rate results for the water tunnel geometry were in good agreement with experimental results, particularly in the case of the generator, which operated at higher rotation rates. Peak efficiencies were found to depend strongly on rotation rate, but only weakly on the blade count.
Additional RANS results were obtained for the turbines in an unconfined domain. Trends and conclusions were consistent with those for turbines within the water tunnel.
MATHEMATICAL MODELING OF PROPELLER SERIES
Authors: Bukarica M
Published: October 2019

Propeller series are used in the process of designing the ship propulsion system, propeller and engine. The emergence of computers has made it possible to create a program, an expert system, which greatly accelerates and improves this process. In order to create such a program, it is necessary to provide a mathematical model of the test results, i.e. describe them by some mathematical expressions. In addition to this mathematical model, such a program must also have a mathematical model of the ship resistance. Precision and reliability of results produced by the expert system for the selection of the ship propulsion system depends on precision of the mathematical models it uses.

Usual modeling procedures use standard mathematical functions and statistical methods. The aim of this paper is to present a "natural method" of mathematical modeling using spline functions, to compare them with each other, and to point out their advantages and deficiencies.
EXPERIMENTAL ASSESSMENT OF MEGA-YACHT AERODYNAMIC PERFORMANCE AND CHARACTERISTICS - Discussion Paper
Authors: Fossati F , Robustelli F , Belloli M , Bertorello C , Dellepiane S
Published: October 2019

Discussion Paper.
BACK AGAINST THE WALL
Authors: Dunworth R J
Published: October 2019

An inclining experiment is the established method used to determine the vertical centre of gravity of a ship. At the same time, the other lightship properties can be found — displacement and the longitudinal and transverse centres of gravity. Only in exceptional circumstances will the traditional method of calculating KG deliver a completely accurate value due to the dependence on wall-sided theory. Although the result may be acceptable for large vessels which tend to be wall sided (or nearly so) at the inclining waterplane, there can be significant error on small vessels which typically have more shape in that region. The problem is discussed and the magnitude of potential error is investigated. An alternative calculation method is proposed, with validity demonstrated by calculation and example. The method overcomes the drawbacks of the classic calculations and allows the evaluation of KG and TCG of any hull form, inclined to any angle of heel or trim. This paper expands on a previous paper, Up Against the Wall, by the author [1].
AERODYNAMIC FORCE DEDUCTION ON YACHT SAILS USING PRESSURE AND SHAPE MEASUREMENTS IN REAL TIME
Authors: Le Pelley D , Morris D , Richards P , Motta D
Published: October 2019

This paper describes a method of deducing aerodynamic force components produced by individual sails. This is achieved by measuring the pressure distribution at a number of discrete locations over the sail and extrapolating these measurements into a distribution across the entire sail surface. The sail shape is measured using the camera-based VSPARS system and the force distribution over the sail surface is then determined. Wind tunnel tests have been conducted to validate the accuracy of the model. Full scale testing has been undertaken to investigate how aerodynamic
effects of trimming sails affect yacht performance.
A SIMULATION APPROACH FOR PLANING BOATS PROPULSION AND MANOEUVRABILITY
Authors: Ircani A , Martelli M , Viviani M , Altosole M , Podenzana-Bonvino C , Grassi D
Published: October 2019

A comprehensive approach to modelling and simulation of high speed craft dynamics during turning circle and zig-zag manoeuvres is presented in this paper. The high performance requirements for propulsion systems and the increasing attention being paid to planing hull manoeuvring features suggest the need for a thorough investigation into ship dynamics, starting in the preliminary design phase. Dynamic aspects of planing craft during manoeuvres cannot be adequately dealt with by traditional methodologies and purely steady state approaches. For this reason, the boat’s dynamic behaviour is evaluated by means of a time domain simulator, able to represent the hull dynamics, including the mutual interactions with the propulsion system and propulsion controller. Manoeuvrability characteristics are simulated on the basis of captive model tests on planing hulls available in open literature. Compared with previous similar studies, in the present work a possible strategy is introduced to represent roll motion due to the propulsion and steering effects. Finally, the simulation results are compared with sea trial records in order to highlight the capabilities and shortcomings of the proposed method. The case study analysed is a boat equipped with two azimuthal propulsors driven by two high-speed diesel engines that ensure a speed up to 32.5 kn.
THERMAL LOAD EFFECTS ON ALUMINUM LIGHT ALLOY PLATES WITH EPOXY COATINGS
Authors: Boote D , Pais T , Vergassola G M , Giannarelli D
Published: October 2019

When the assembling of hull structure is completed, the sides of metal motor yachts are usually affected by bumps and hollows coming from welding plates to each other and plates to frames. These defects, normally tolerated on merchant ships, cannot be accepted on superyachts for which the external surface must be smooth and glossy. For this reason the surface finishing is achieved by a long and delicate process of filling, fairing and painting.

The final result of this process is very important for the yacht aesthetics as the general appearance of the vessel depends on the external painting. As a matter of fact the quality of painting depends mainly on the undercoat preparation to assure an adequate grip and, most of all, a perfect smooth and faired surface. Despite accurate preparation and painting, surface conditions can undergo undesired alteration because of excessive heating due, as an example, to a long exposure to solar radiation. While stresses do not reach significant values because of the relatively low intensity of thermal loads, strains could still cause very slight surface distortions and undulations which are perceived by human eye as a surface defect. The phenomenon becomes particularly evident if the surface is painted with a dark colour.

In this paper an investigation on the influence of temperature on the stress and strain distribution of aluminium light alloy plates coated by filler layers of different kind and thickness is reported. The study has been performed by FEM structural analyses calibrated by experimental measurements performed on laboratory specimens. This work represents the continuation of a research begun some time ago with the measurement of temperatures on yacht hulls exposed to solar radiation in different conditions.
Fog Computing Architecture for Scalable Processing of Geospatial Big Data
Authors: Barik Rabindra K. , Priyadarshini Rojalina , Lenka Rakesh K. , Dubey Harishchandra , Mankodiya Kunal
Published: October 2019

Geospatial data analysis using cloud computing platform is one of the promising areas for analysing, retrieving, and processing volumetric data. Fog computing paradigm assists cloud platform where fog devices try to increase the throughput and reduce latency at the edge of the client. In this research paper, the authors discuss two case studies on geospatial data analysis using Fog-assisted cloud computing namely, (1)Ganga River Basin Management System; and (2)Tourism Information Management of India. Both case studies evaluate proposed GeoFog architecture for efficient analysis and management of geospatial big data employing fog computing. The authors developed a prototype of GeoFog architecture using Intel Edison and Raspberry Pi devices. The authors implemented some of the open source compression methods for reducing the data transmission overload in the cloud. Proposed architecture performs data compression and overlay analysis of data. The authors further discussed the improvement in scalability and time analysis using proposed GeoFog architecture and Geospark tool. Discussed results show the merit of fog computing that holds an enormous promise for enhanced analysis of geospatial big data in river Ganga basin and tourism information management scenario.
Place-Based Assessment of Intersection of Biophysical and Social Vulnerability to Flooding in Accra, Ghana
Authors: Aboagye Dacosta , Attakora-Amaniampong Elvis , Owusu-Sekyere Ebenezer
Published: October 2019

The relationship between flood hazards and social vulnerability is firmly on the intellectual agenda of geographers in Ghana. In an attempt to theorize and empirically examine this relationship, scholars have commonly followed a one-sided methodological strand. In this article, a triple-helix approach that relies on the application of social vulnerability index; mapping potential flood hazard zones; and examining degree of coincidence between flood hazards and social vulnerability, is used. Situating the analysis within Hazards-of-Place Model of Vulnerability, the study identifies spatial disparities in biophysical and social vulnerability within the City. It emerged that communities in the Ashiedu Keteke sub-metro were the most vulnerable based on the hazards-of-place model. Significantly, while flood risk awareness was very high among community members, the perception of flood risk management was poor. The study argues that understanding place-based vulnerability is crucial in mitigating the effect of hazards and building resilient communities.
Deep Convolutional Neural Networks for Customer Churn Prediction Analysis
Authors: Chouiekh Alae , El Haj El Hassane Ibn
Published: October 2019

Several machine learning models have been proposed to address customer churn problems. In this work, the authors used a novel method by applying deep convolutional neural networks on a labeled dataset of 18,000 prepaid subscribers to classify/identify customer churn. The learning technique was based on call detail records (CDR) describing customers activity during two-month traffic from a real telecommunication provider. The authors use this method to identify new business use case by considering each subscriber as a single input image describing the churning state. Different experiments were performed to evaluate the performance of the method. The authors found that deep convolutional neural networks (DCNN) outperformed other traditional machine learning algorithms (support vector machines, random forest, and gradient boosting classifier) with F1 score of 91%. Thus, the use of this approach can reduce the cost related to customer loss and fits better the churn prediction business use case.
Use of Electronic Information Resources at Mekelle University, Ethiopia
Authors: Dongardive Prakash
Published: October 2019

The present research work describes the use of the electronic resources by the teaching community at Mekelle University, Ethiopia. The survey was conducted by using questionnaires to collect the data. The questionnaires were administered to a total of 1,516 on-duty teaching faculty of seven colleges. This is including the College of Natural and Computational Sciences, the College of Veterinary Medicine, the College of Health Science, the College of Law and Governance, the College of Business and Economics, the College of Language and Social Sciences, the College of Dry Land Agriculture and Natural Resources as well as nine regular institutes including: the Ethiopian Institute of Technology, Mekelle Institute of Technology, the Institute of Paleo Environment and Heritage Conservation, the Institute of Pedagogical Sciences, the Institute of Geo-Information and Earth Observation Sciences, the Institute of Environment and Gender Development Studies, the Institute of Population Studies, the Institute for Climate and Society, and the Institute for Water and Environment at Mekelle University. The survey also examines the purpose of use, frequency, difficulties, and availability of electronic information resources subscribed by Mekelle University Digital Library. Finally, the data has been interpreted, concluded and suggestions have been given for the improvement of electronic information resources at the library web portal.
Drivers of E-Government Citizen Satisfaction and Adoption
Authors: Al-Ma'aitah Mohammad
Published: October 2019

This study investigated the impact of drivers of e-government, particularly social CRM, citizen trust, and quality of electronic services, on citizen satisfaction with e-government services in the Jordanian environment. In addition to measuring the impact of social CRM on citizen trust and service quality respectively and its impact on citizen satisfaction. A convenience sample was used to achieve the study purpose consisting of 386 questionnaires collected online. The resulting data was analyzed using PLS.2 software. The study findings reveal that social CRM has a significant impact on citizen trust and quality of electronic services, and furthermore that citizen trust and quality of electronic services have significant impacts on citizen satisfaction with e-government services. The study found no direct relationship between the use of social CRM and citizen-government satisfaction but showed a significant indirect impact via customer trust and service quality.
Vocal Acoustic Analysis
Authors: Teixeira João Paulo , Alves Nuno , Fernandes Paula Odete
Published: October 2019

Vocal acoustic analysis is becoming a useful tool for the classification and recognition of laryngological pathologies. This technique enables a non-invasive and low-cost assessment of voice disorders, allowing a more efficient, fast, and objective diagnosis. In this work, ANN and SVM were experimented on to classify between dysphonic/control and vocal cord paralysis/control. A vector was made up of 4 jitter parameters, 4 shimmer parameters, and a harmonic to noise ratio (HNR), determined from 3 different vowels at 3 different tones, with a total of 81 features. Variable selection and dimension reduction techniques such as hierarchical clustering, multilinear regression analysis and principal component analysis (PCA) was applied. The classification between dysphonic and control was made with an accuracy of 100% for female and male groups with ANN and SVM. For the classification between vocal cords paralysis and control an accuracy of 78,9% was achieved for female group with SVM, and 81,8% for the male group with ANN.
Harmonization and Categorization of Metrics and Criteria for Evaluation of Recommender Systems in Healthcare From Dual Perspectives
Authors: Afolabi Adekunle Oluseyi , Toivanen Pekka
Published: October 2019

Researchers' choice of metrics and criteria in evaluating recommender systems depends on what the researcher feels is popular among other researchers, or sometimes based on the objective of the research. There is no harmonized set of criteria and metrics that can be referenced when evaluating recommender systems in healthcare. In this article, a set of metrics and criteria are harmonized and categorized as a guide for evaluating recommender systems. By means of an online survey, the opinions of forty-four experienced researchers and other stakeholders from eight countries and four continents were sought on the relevance of identified metrics and criteria. Analysis of the results show speed and timeliness are at the top. Topping the list of criteria is the provision of information that will guide users to useful decisions. The result is presented from two logical perspectives. Four categories are then identified as a useful guide for evaluating recommender systems.
Entrepreneurship in the Internet Age
Authors: Wu Yenchun Jim , Chen Shih-Chih , Pan Chia-I
Published: October 2019

With the rapidly expanding Internet economy, new business operation models are emerging. Entrepreneurship and innovative business models have become a point of special interest in the Internet era, and are also drawing attention from scholars. This study used three perspectives to explore issues that require understanding in the Internet age in order to improve the survival rate and sustainable development of entrepreneurship. The three perspectives included the differences between the Internet age and traditional entrepreneurship, the personal characteristics of entrepreneurs, and the capital resources and financing of entrepreneurs. Through this study, readers can better understand the key success factors in the dynamic entrepreneurship process and engage in further related discussions.
Los libros didácticos impresos en Tipografía de Serva (Bahía, 1811-1846): bibliografía e historia
Authors: Magalhães Pablo Iglesias , Costa Alex Andrade
Published: October 2019

Este estudio tiene como objetivo identificar los primeros libros escolares impresos en la Bahía, Brasil, desde la instalación de la prensa (1811), destacando la Tipografía de Serva como la responsable por la impresión y circulación de parte significativa de esos libros escolares, evidenciando una creciente demanda. En el artículo también se ve en los libros sobre la forma, el contenido y los propósitos, comprobando en este caso que muchos de los libros fueron concebidos y producidos como herramientas políticas, que se utilizan para legitimar el mantenimiento de la lengua, la religión, la cultura y las costumbres de los portugueses en Brasil en el contexto después de 1822.
“Mais que uma revista, um dicionário para os pais”: a revista “Pais & Filhos” e a imprensa transnacional para a família
Authors: Pereira Borba dos Santos Liana
Published: October 2019

Este artigo visa discutir de que forma a análise da revista Pais & Filhoscontribuiu para uma história da imprensa educacional dirigida às famílias, considerando seu papel no mercado editorial brasileiro nos anos 1960 a 1980 e sua relação com a imprensa transnacional voltada para essa temática. Pais & Filhos tratava de aspectos relacionados à saúde, à educação e ao comportamento das crianças e de suas respectivas famílias. Não obstante, a revista brasileiraaproximava-se de publicações de circulação internacional,como Eltern (Alemanha), Parents (EUA), Enfant Magazine e Parents(França). Tais revistas compartilhavam com Pais & Filhos o empenho em educar as famílias leitoras, em termos científicos, acerca de aspectos ligados à gestação, ao cuidado, à saúde e à educação dos filhos.
A imprensa estudantil liceísta no Maranhão (1889-1900)
Authors: Castro Cesar Augusto , Cabral Mayra Cristhine dos Santos , Castellanos Samuel Luis Velázquez
Published: October 2019

Analisa-se o movimento da imprensa estudantil liceísta maranhense na primeira década republicana (1889-1900), enquanto fonte e objeto de estudo simultaneamente. Para tanto, descrevem-se os aspectos relacionados à materialidade dos jornais O Século (1889), O Ensaio (1890), A Eschola (1891), O Porvir (1895), O Ideal (1898) e A Actualidade(1900) bem como as principais temáticas debatidas por eles. A abordagem teórico-metodológica se baseia nos pressupostos da história cultural. Conclui-se que a imprensa liceísta teve papel de destaque na sociedade maranhense e no processo de revigoramento da ‘Atenas Brasileira’, atuando, principalmente, como veículo de legitimação de práticas intelectuais.
O lugar da educação das sensibilidades e dos sentidos - apontamentos sobre o livro “A invenção do recreio escolar: uma história de escolarização no estado do Paraná (1901-1924)"
Authors: Moraes Leticia Cristina Lima , Gomes Leonardo do Couto , Moraes e Silva Marcelo
Published: October 2019

Resenha de Meurer, S. S. (2018). A invenção do recreio escolar: uma história de escolarização no estado do Paraná (1901-1924). Curitiba, PR: Appris.
Por uma história da história da educação no Brasil: Diana Vidal entre os 20 anos da SBHE e os 22 anos do NIEPHE
Authors: Soares Fagno Silva , Plessim Vinicius Kapicius
Published: October 2019

Entrevista realizada em 17 de dezembro de 2018, com a historiadora da educação, Diana Gonçalves Vidal, professora titular de história da educação e livre-docente na Faculdade de Educação da Universidade de São Paulo (FE/USP), coordenadora e fundadora do Núcleo Interdisciplinar de Estudos e Pesquisas em História da Educação (NIEPHE/USP). Diretora do Instituto de Estudos Brasileiros (IEB/USP) e destacada pesquisadora em História da Educação no Brasil.

Durante a entrevista, a pesquisadora Diana Vidal falou sobre sua trajetória profissional, fez reflexões acerca do ofício do/a historiador/a da educação, seus (di)lemas no século XXI, passando pelos 20 anos da SBHE e22 anos do NIEPHE, e sobre o seu contributo à frente do Instituto de Estudos Brasileiros (IEB/USP) até o processo de consolidação dos estudos em história da educação no Brasil. Por fim, tratou dos desafios, trajetória, experiências e perspectivas da história da educação Brasileira.
Faria de Vasconcelos e a Escola Nova em Portugal: do self-government à educação científica
Authors: Boto Carlota
Published: October 2019

O presente artigo propõe-se a abordar o estudo do pensamento educacional de um representante da Escola Nova em Portugal, António de Sena Faria de Vasconcelos (1880-1939). A partir de 1912, o autor dirigirá uma escola por ele próprio fundada em Bierges-Les-Wavre, experiência caracterizada por contemporâneos como uma das principais ações de aplicação dos princípios renovados em educação. Em uma primeira etapa de sua produção, que vai do início do século aproximadamente aos anos de 1920, a ênfase se dá na discussão do método ativo, daquilo que Faria de Vasconcelos prefere denominar de autogoverno, ou, mais precisamente, self-government. Do ponto de vista teórico-metodológico, o estudo inscreve-se na perspectiva da história das mentalidades. Os procedimentos metodológicos adotados são a leitura e a análise das obras completas do autor, tomando esse corpus documental em paralelo com contemporâneos seus.
Il nuovo Codice deontologico delle professioni infermieristiche
Authors: Spagnolo Antonio G.
Published: October 2019

Not available.
Il moral distress dalla medicina umana alla medicina veterinaria: un’analisi comparativa
Authors: De Mori Barbara
Published: October 2019

Gli studi sul disagio professionale nell’ambito delle professioni di aiuto sanitarie sono in continua crescita. Questi studi hanno identificato, tra le altre cose, diversi disturbi e disagi di natura squisitamente etica, come il moral distress, la cui diagnosi e cura rappresentano oggi un impegno di grande rilievo. Tuttavia, nell’ambito delle professioni d’aiuto che si occupano di animali, come quella del medico veterinario, difficilmente questi studi sono stati approfonditi, con ripercussioni anche gravi sull’esercizio professionale. In generale, infatti, la società fatica a comprendere quanto possa essere difficile per chi lavora con gli animali gestire i conflitti etici che si creano tra le esigenze professionali, le esigenze degli animali e le richieste di chi è proprietario o, comunque, referente per l’animale. Il moral distress è stato riconosciuto solo di recente in medicina veterinaria ed è provocato, come nell’ambito della medicina umana, dall’incapacità di trovare un accordo tra la propria vocazione e le tensioni morali che l’esercizio della professione procura ogni giorno. In questo contributo, attraverso una comparazione con gli studi realizzati nell’ambito delle professioni di aiuto sanitarie in medicina umana, viene esplorata la geografia morale del moral distress nel contesto della professione medico veterinaria, con uno sguardo alle specifiche problematiche etiche che sono coinvolte nella relazione triadica tra medico, paziente animale e proprietario.
Vulnerabilità umana e razionalità pratica. Una prospettiva bioetica macintyriana
Authors: Maletta Sante
Published: October 2019

Questo articolo prende in esame alcuni testi di Alasdair MacIntyre, compresi in un arco temporale di circa trent’anni, a partire dai quali si può ricostruire una prospettiva bioetica che fa perno su un’etica delle virtù. Tale prospettiva “ricentra” la bioetica sulla medicina come pratica sociale e quindi sul rapporto paziente/medico considerato all’interno della concreta trama sociale nella quale agiscono forme di dipendenza tanto alienanti quanto liberanti. Il perseguimento del bene umano non passa quindi attraverso un’utopica emancipazione da ogni forma di dipendenza ma bensì attraverso la pratica delle virtù etiche e dianoetiche resa possibile dai rapporti di dipendenza biologica e razionale. L’esercizio della razionalità pratica indipendente, che costituisce un fattore importante della realizzazione del bene, non viene intesa come autonomia assoluta ma piuttosto come capacità di dar conto delle proprie scelte e azioni dal punto di vista narrativo. In tale prospettiva bioetica la disabilità, in quanto manifestazione della dipendenza e della vulnerabilità umane, diviene un’opportunità per l’esercizio delle “virtù del dare e del ricevere” che realizzano il bene individuale e il bene comune e quindi spinge nella direzione di un ripensamento della condizione umana e della natura del legame sociale e dei suoi criteri di giustizia.
Nurses’ perspectives of the nursing documentation audit process
Authors: Ramukumba Mokholelana M. , Amouri Souher El
Published: October 2019

Background: Nursing has an obligation to the public to develop measures for the quality of care to enhance patient safety and efficiency of the system. The first hospital to introduce the clinical audit of nursing documentation was in Abu Dhabi. The rationale was the recognition of the link between clinical audits and the quality of patient care and safety. This article recognises the importance of documentation audits in nursing practice and the role of nurses related to conducting audits in a selected hospital in Abu Dhabi. Many studies have shown the potential benefits of documentation audits to evaluate or assess the quality of recorded nursing assessments and care.Aim: The aim of this study was to explore nurses’ perspectives of the documentation audit process.Method: The study adopted an exploratory, descriptive qualitative approach using the evaluation method. Data were collected using three focus group interviews consisting of 4 informatics and 13 documentation link nurses involved in the implementation of the clinical audit on nursing documentation in the selected hospital. Thematic analysis was used to analyse the data.Results: Three major themes evolved from the research findings: implementation of documentation audit, evaluation of audit and measures to improve documentation audit. Strengths and weaknesses of the documentation audit were articulated by the nurses. Generally, nurses were satisfied with the audit process and made recommendations on improvements.Conclusion: Processes adopted by the team were reasonable and useful, and the preparation and planning for the clinical audit were regarded as areas of strength. Areas of weaknesses in the implementation processes identified included dissemination of findings and executing improvements. This could be improved with necessary support from the hospital management, especially with regard to release time to implement required changes. The complexity of auditing electronic versus paper-based nursing documentation is acknowledged.
Seroprevalence of Anti-Leptospira IgG and IgM Antibodies and Risk Assessment of Leptospirosis among Urban Poor Communities in Kuala Lumpur, Malaysia
Authors: Sahimin Norhidayu , Sharif Siti Aishah , Mohd Hanapi Izzah Ruzana , Nai Chuan Sukchinda , Lewis John W. , Douadi Benacer , Mohd Zain Siti Nursheena
Published: October 2019

Leptospirosis is a zoonotic bacterial disease caused by pathogenic species of the genus Leptospira. Disease incidence is known to be attributed to environmental and social conditions which promote the spread of reservoir hosts, primarily rodents. A well-being program was conducted to determine the seroprevalence and risk factors associated with leptospirosis in urban poor communities occupying low-cost flat accommodation and squatter settlements in the vicinity of Wilayah Persekutuan, Kuala Lumpur. Blood samples from a total of 532 volunteers were screened for the detection of IgG and IgM antibodies against leptospirosis using ELISA. Demographic data were collected for each participant through a questionnaire survey before blood collection. The overall seroprevalence was low (12.6%, n = 67/532; 95% CI: 9.9–15.7%), with 8.1% (n = 43/532) being seropositive for anti-Leptospira IgG, indicating previous infection, and 4.9% (n = 26/532) for anti-Leptospira IgM, indicating current infection. Two significant factors such as host age (P ≤ 0.01) and knowledge of disease transmission (P = 0.017) significantly influenced the presence of anti-Leptospira IgM, whereas the detection of anti-IgG indicated the presence of clean drinking water sources (P = 0.043). Despite the low prevalence, the transmission of leptospirosis does occur among urban poor communities, suggesting the need for undertaking public awareness programs.
Infectious Complications Following Snakebite by Bothrops lanceolatus in Martinique: A Case Series
Authors: Resiere Dabor , Mehdaoui Hossein , Névière Rémi , Olive Claude , Severyns Mathieu , Beaudoin Adeline , Florentin Jonathan , Brouste Yannick , Banydeen Rishika , Cabié André , Mégarbane Bruno , Gutiérrez José María , Kallel Hatem
Published: October 2019

Infections secondary to snakebite occur in a number of patients and are potentially life-threatening. Bothrops lanceolatus bites in Martinique average 30 cases per year and may result in severe thrombotic and infectious complications. We aimed to investigate the infectious complications related to B. lanceolatus bite. A retrospective single-center observational study over 7 years (2011–2018) was carried out, including all patients admitted to the hospital because of B. lanceolatus bite. One hundred seventy snake-bitten patients (121 males and 49 females) were included. Thirty-nine patients (23%) presented grade 3 or 4 envenoming. Twenty patients (12%) developed wound infections. The isolated bacteria were Aeromonas hydrophila (3 cases), Morganella morganii (two cases), group A Streptococcus, and group B Streptococcus (one case each). Patients were treated empirically with third-generation cephalosporin (or amoxicillin–clavulanate), aminoglycoside, and metronidazole combinations. Outcome was favorable in all patients. The main factor significantly associated with the occurrence of infection following snakebite was the severity of envenoming (P < 0.05). Our findings clearly point toward the frequent onset of infectious complications in B. lanceolatus–bitten patients presenting with grade 3 and 4 envenoming. Thus, based on the bacteria identified in the wounds, we suggest that empiric antibiotic therapy including third-generation cephalosporin should be administered to those patients on hospital admission.