bluuebunny/crossref_metadata_2025_split huggingface dataset:
HIV Testing and Positivity Patterns of Partners of HIV-Diagnosed People in Partner Services Programs, United States, 2013-2014
Authors: Song Wei , Mulatu Mesfin S. , Rorie Michele , Zhang Hui , Gilford John W. 
Published: June 2017

Objective: Human immunodeficiency virus (HIV) partner services are an integral part of comprehensive HIV prevention programs. We examined the patterns of HIV testing and positivity among partners of HIV-diagnosed people who participated in partner services programs in CDC-funded state and local health departments. Methods: We analyzed data on 21 484 partners submitted in 2013-2014 by 55 health departments. We conducted descriptive and multivariate analyses to examine patterns of HIV testing and positivity by demographic characteristics and geographic region. Results: Of 21 484 partners, 16 275 (75.8%) were tested for HIV; 4503 of 12 886 (34.9%) partners with test results were identified as newly HIV-positive. Compared with partners aged 13-24, partners aged 35-44 were less likely to be tested for HIV (adjusted odds ratio [aOR] = 0.86; 95% confidence interval [CI], 0.78-0.95) and more likely to be HIV-positive (aOR = 1.35; 95% CI, 1.20-1.52). Partners who were male (aOR = 0.89; 95% CI, 0.81-0.97) and non-Hispanic black (aOR = 0.68; 95% CI, 0.63-0.74) were less likely to be tested but more likely to be HIV-positive (male aOR = 1.81; 95% CI, 1.64-2.01; non-Hispanic black aOR = 1.52; 95% CI, 1.38-1.66) than partners who were female and non-Hispanic white, respectively. Partners in the South were more likely than partners in the Midwest to be tested for HIV (aOR = 1.56; 95% CI, 1.35-1.80) and to be HIV-positive (aOR = 2.18; 95% CI, 1.81-2.65). Conclusions: Partner services programs implemented by CDC-funded health departments are successful in providing HIV testing services and identifying previously undiagnosed HIV infections among partners of HIV-diagnosed people. Demographic and regional differences suggest the need to tailor these programs to address unique needs of the target populations.
Trainees’ perception of education in communication and professionalism across two programs in two countries
Authors: Lee Jan Hau , Quek Bin Huey , Hornik Christoph P , Shahdadpuri Raveen , Turner David A 
Published: June 2017

Background: Different health care systems impact on medical education. Objective: We aim to describe the differences and similarities in the perceptions of pediatric residents on education in professionalism and communication skills across two countries. Methods: We conducted a cross-sectional survey of pediatric residents in the United States and Singapore. A 108-item written questionnaire on perceptions regarding education in communication/professionalism was administered. A five-point Likert scale was used for each attribute in the survey. Quantitative analysis was performed using chi-square test. Results: Response rate was 65.9% (89/135). In the domain of professionalism, residents from both countries ranked shared decision making as the most important attribute (Singapore vs. USA: 26/50 (52.0%) vs. 19/39 (48.7%), p = 0.76). In contrast, there was a difference in ranking of the most important attribute in communication between the two countries, with dealing with difficult family and patient being most important for Singapore trainees (30/50(60.0%) vs. 8/39 (20.5%), p < 0.001). Direct observation and feedback and role modeling by seniors were the most common teaching methods in both centers. Main barriers in learning were high workload (55/89 (61.8%)) and time constraints (53/89 (59.6%)) in both countries. Promoters of teaching these competencies were similar, with role modeling by senior staff rated as most important. Conclusions: This investigation demonstrates more differences in the perception of how communication is taught compared to professionalism across two countries. Barriers and promoters to teaching were similar across these two countries, with role modeling being an important approach to teaching communication and professionalism across both countries.
How I treat patients with aggressive lymphoma at high risk of CNS relapse
Authors: Chin Collin K. , Cheah Chan Yoon 
Published: June 2017

AbstractCentral nervous system (CNS) relapses are an uncommon yet devastating complication of non-Hodgkin lymphomas. The identification of patients at high risk of secondary CNS relapse is therefore paramount. Retrospective data indicate prophylactic CNS-directed therapies may reduce the risk of CNS involvement; however, no consensus exists about dose, timing, or route of therapy. In addition, prophylaxis is not without risk of treatment-related complications and morbidity. Here, we present a series of case vignettes highlighting our approach to common dilemmas encountered in routine clinical practice. We review the method of assessing CNS relapse risk, factors that increase the likelihood of relapse including histologic subtype, MYC rearrangement, protein expression, and extranodal involvement, and review our clinical practice based on available evidence in administering CNS-directed prophylaxis.
Combining multidirectional source vector with antitruncation-artifact Fourier transform to calculate angle gathers from reverse time migration in two steps
Authors: Tang Chen , McMechan George A. 
Published: June 2017

Because receiver wavefields reconstructed from observed data are not as stable as synthetic source wavefields, the source-propagation vector and the reflector normal have often been used to calculate angle-domain common-image gathers (ADCIGs) from reverse time migration. However, the existing data flows have three main limitations: (1) Calculating the propagation direction only at the wavefields with maximum amplitudes ignores multiarrivals; using the crosscorrelation imaging condition at each time step can include the multiarrivals but will result in backscattering artifacts. (2) Neither amplitude picking nor Poynting-vector calculations are accurate for overlapping wavefields. (3) Calculating the reflector normal in space is not accurate for a structurally complicated reflection image, and calculating it in the wavenumber ([Formula: see text]) domain may give Fourier truncation artifacts. We address these three limitations in an improved data flow with two steps: During imaging, we use a multidirectional Poynting vector (MPV) to calculate the propagation vectors of the source wavefield at each time step and output intermediate source-angle-domain CIGs (SACIGs). After imaging, we use an antitruncation-artifact Fourier transform (ATFT) to convert SACIGs to ADCIGs in the [Formula: see text]-domain. To achieve the new flow, another three innovative aspects are included. In the first step, we develop an angle-tapering scheme to remove the Fourier truncation artifacts during the wave decomposition (of MPV) while preserving the amplitudes, and we use a wavefield decomposition plus angle-filter imaging condition to remove the backscattering artifacts in the SACIGs. In the second step, we compare two algorithms to remove the Fourier truncation artifacts that are caused by the plane-wave assumption. One uses an antileakage FT (ALFT) in local windows; the other uses an antitruncation-artifact FT, which relaxes the plane-wave assumption and thus can be done for the global space. The second algorithm is preferred. Numerical tests indicate that this new flow (source-side MPV plus ATFT) gives high-quality ADCIGs.
Acid–base physiology, neurobiology and behaviour in relation to CO2-induced ocean acidification
Authors: Tresguerres Martin , Hamilton Trevor J. 
Published: June 2017

ABSTRACT
Experimental exposure to ocean and freshwater acidification affects the behaviour of multiple aquatic organisms in laboratory tests. One proposed cause involves an imbalance in plasma chloride and bicarbonate ion concentrations as a result of acid–base regulation, causing the reversal of ionic fluxes through GABAA receptors, which leads to altered neuronal function. This model is exclusively based on differential effects of the GABAA receptor antagonist gabazine on control animals and those exposed to elevated CO2. However, direct measurements of actual chloride and bicarbonate concentrations in neurons and their extracellular fluids and of GABAA receptor properties in aquatic organisms are largely lacking. Similarly, very little is known about potential compensatory mechanisms, and about alternative mechanisms that might lead to ocean acidification-induced behavioural changes. This article reviews the current knowledge on acid–base physiology, neurobiology, pharmacology and behaviour in relation to marine CO2-induced acidification, and identifies important topics for future research that will help us to understand the potential effects of predicted levels of aquatic acidification on organisms.
Optimal Three-Part Tariff Plans
Authors: Fibich Gadi , Klein Roy , Koenigsberg Oded , Muller Eitan 
Published: June 2017

Service providers, such as cell phone carriers, often offer three-part tariff plans that consist of three levers: A fixed fee, an allowance of free units, and a price per unit above the allowance. In previous studies the optimal three-part tariff contract was characterized using the standard first-order conditions approach. Because this optimization problem is nonsmooth, however, it could only be solved in a few simple cases. In this study we employ a different methodology that is based on obtaining a global bound for the firm profit, and then showing that this bound is attained by the optimal plan. This approach allows us to explicitly calculate the optimal three-part tariff plan under quite general conditions, where consumers are rational, they have a general utility function, they experience psychological costs when they exceed the number of free units, they have deterministic or stochastic consumption rates, they are homogeneous or heterogeneous, and the firm costs are fixed or depend on the usage level. The online appendix is available at https://doi.org/10.1287/opre.2017.1609 .
Improving healthcare by promoting time efficiency through standardisation of hospital wards
Authors: Nixon Martha , Pinto Keith Gomes , Kostalas Marcos , Taylor John , Williams David 
Published: June 2017

Aim: This study aimed to measure how different ward layouts can impact on working efficiency. This can have significant impact on productivity, patient care and patient safety. Method: The time taken for 20 junior doctors to collect the equipment to perform two routine tasks was measured. This was repeated on five hospital wards. Results: The time taken to perform the tasks on different wards varied significantly. It could take up to 60 seconds longer to perform a very simple task depending on the ward. The junior doctors performed consistently better on two wards indicating that the ward layout was responsible. Conclusion: Ward layout can have significant impact on efficiency. In the current NHS, where multiple staff members regularly move between wards, implementing very simple measures and standardising ward layout could have dramatic impact on efficiency. This could improve patient care and patient safety.
Transition to SCPHN: The effects of returning to student status on autonomous practitioners
Authors: Hughes-Morris Diana , Roberts Debbie 
Published: June 2017

Qualified nurses returning to student status is not well researched within nursing. The aim of the study is to ascertain the effect that returning to student status has on autonomous practitioners embarking on the Specialist Community Public Health Nursing programme. Enabling participants to voice their opinions and be heard aims to provide a greater understanding of the effect that such transition has on individuals. With such insight, those engaged in the preparation of such practitioners, namely lecturers and practice teachers will have a greater appreciation of the impact that returning to student status has—equipping them with heightened awareness for future transition. A total of 16 participants consisting of school nurses and health visitors took part in this study. The study was designed in two phases, consisting of a demographic questionnaire and a non-directive interview. Six key themes emerged: initial feelings, effects from academia, effects from clinical, support provision, personal effects and exit feelings. The student title created such a strong feeling of loss highlighting a clear need to retain identity, status and credibility. Coupled with the effects of relinquishing autonomy, one questions and would encourage change in practice when introducing forthcoming students while utilising previous knowledge and skills as a platform for learning.
Satisfação e Qualidade de Vida em Profissionais de Enfermagem na Região do Cariri Cearense
Authors: Moreira Josefa Janiele Lopes , Sugette Juliana De Freitas Vasconcelos , Bezerra Martha Maria Macedo 
Published: June 2017

A Satisfação com a vida e, a Qualidade de vida no trabalho, nos parece estar cada vez mais prejudicada em função de mudanças por que passa o mundo nos tempos atuais. Diversos fatores e uma série de responsabilidades recaem sobre o labor do profissional de educação, muitos dos quais fogem ao seu controle. O presente estudo se propôs a conhecer e analisar, em que medida a Satisfação com a Vida e a Qualidade de Vida dos professores da Escola Municipal Padre José de Anchieta, variam em função de variáveis com a remuneração, carga horária semanal de trabalho, formação acadêmica dos mesmos, dentre outras. Trata-se de um estudo transversal, quali-quantitativo, correlacional, do tipo ex post facto. Considerou-se a correlação de um conjunto de variáveis antecedentes (Nível de formação acadêmica, Remuneração, Jornada de trabalho) com as variáveis critério (Satisfação com a Vida e Qualidade de Vida). Os resultados se mostraram preocupantes, quando 16% dos professores se disseram insatisfeitos em exercerem o seu trabalho como educadores. Quanto ao motivo das insatisfações, os baixos salários foi citado por 88% dos entrevistados, seguidos de estrutura escolar deficiente, desmotivação, dificuldade de educar, atrito de ideais, desvalorização da categoria e, a falta de incentivo. A preocupação com a qualidade de vida docente, torna-se relevante, na medida em que professores quando satisfeitos, produzem mais, influenciam na motivação dos seus alunos e, principalmente, ajudam a construir uma sociedade melhor e mais justa.
Signalverarbeitung zur Inline-Prozessüberwachung für koaxial
integrierte Messtechnik in der Lasermikrostrukturierung
Authors: Kunze Rouwen , Bredol Philipp , Schmitt Robert 
Published: June 2017

Zusammenfassung
Der Einsatz von Ultrakurzpuls(UKP)-Lasersystemen für die
Mikrobearbeitung gewinnt in vielen Laserbearbeitungsanwendungen
zunehmend an Bedeutung und ist eines der wichtigsten Werkzeuge für
die Mikrofertigung. Obwohl Computer Aided Design(CAD)-Modelle alle
geometriebezogenen Informationen über das Werkstück für
die Steuerung enthalten, erzeugen die vorherigen Bearbeitungsschritte
am Werkstück eine unbekannte Topographie des Bauteils im
Mikrometerbereich. Um die oben genannten Abweichungen zu kompensieren
und einen toleranzgerechten Fertigungsprozess zu ermöglichen, ist
eine Messung der Mikrogeometrie des Werkstücks innerhalb der
Werkzeugmaschine wichtig. Daher ist das Ziel dieser Arbeit eine
Inline-Messsystemintegration eines sensorbasierten adaptiven
Mikrobearbeitungssystems unter Verwendung eines UKP-Lasers, mit dem
Ziel einer ausschussfreien Produktion.
Synthesis of carbohydrate-substituted isoxazoles and evaluation of their antitubercular activity
Authors: Hajlaoui Khaoula , Guesmi Ahlem , Hamadi Naoufel Ben , Msaddek Moncef 
Published: June 2017

Abstract
Eight new sugar-substituted isoxazoles were synthesized by a 1,3-dipolar cycloaddition reaction of aromatic nitrile oxides with carbohydrate-substituted alkynes. Products were screened for antimycobacterial activity against the Mycobacterium tuberculosis H37Rv strain. Four compounds, 5e–h, significantly inhibit growth of the bacterial strain with a minimum inhibitory concentration (MIC) of 3.125 μg/mL.
Boron-based small molecules in disease detection and treatment (2013–2016)
Authors: Thareja Suresh , Zhu Mengyuan , Ji Xingyue , Wang Binghe 
Published: June 2017

Abstract
Recent years have seen tremendous development in the design and synthesis of boron-based compounds as potential therapeutics and for detection applications. The present review highlights the most recent development of these boron-based small molecules, covering clinically used ixazomib, tavaborole, crisaborole and other molecules from 2013 to 2016.
The Scientific Achievements of J. Alberto Ochoa-Tapia
Authors: Valdés-Parada Francisco J. 
Published: June 2017

Abstract
This work is devoted to briefly describe the scientific achievements of J. Alberto Ochoa-Tapia and his research group along almost three decades. The motivation for performing this review is not only to acknowledge his contributions, but also to share with the scientific community a brilliant scientific career. Although an exhaustive and complete review is beyond the scope of this paper, many of Alberto’s scientific contributions are briefly described. In addition, special attention is dedicated to three subjects, namely: Chang’s unit cell, the derivation of boundary conditions between a porous medium and a fluid and the use of Green’s functions to solve boundary-value problems. The first one is a convenient approach to derive analytical expressions of effective-medium coefficients resulting from the volume averaging method. The second one is Alberto’s most referenced work and it is of paramount importance since it provides the means to complete the statement of multiscale modeling. The third focus of attention is about the use of Green’s functions to solve nonlinear boundary-value problems in an efficient manner. Finally, his current and future works are discussed.
The anti-usury arguments of the Church Fathers of the East in their historical context and the accommodation of the Church to the prevailing “credit economy” in late antiquity
Authors: Samellas Antigone 
Published: June 2017

AbstractThe evidence the Church Fathers offer about the economic practices of late antiquity are often dismissed as empty rhetoric. The aim of this article is first, to examine the historical value of their arguments against usury in the light of papyrological and hagiographic sources as well as οf archaeological findings; secondly, to assess the extent to which the churches and monasteries in Syria and Egypt accommodated themselves to the “credit economy” of late antiquity; and, thirdly, to evaluate the reasons for the church’s compromise with the established credit practices and its impact on the implementation of the Christian redistributive ideals.
A New Examination of the Arch of Marcus Aurelius and Lucius Verus at Oea
Authors: Meyers Rachel 
Published: June 2017

AbstractThe arch dedicated to Marcus Aurelius and Lucius Verus at Oea was an important component in that town’s building activity. By situating the arch within its socio-historical context and acknowledging the political identity of Oea and nearby towns, this article shows that the arch at Oea far surpassed nearby contemporary arches in style, material, and execution. Further, this article demonstrates that the arch was a key element in Oea’s Roman identity. Finally, the article bridges disciplinary boundaries by bringing together art historical analysis with the concepts of euergetism, Roman civic status, and inter-city rivalry in the Roman Empire.
Comparison of supervised machine learning algorithms for waterborne pathogen detection using mobile phone fluorescence microscopy
Authors: Ceylan Koydemir Hatice , Feng Steve , Liang Kyle , Nadkarni Rohan , Benien Parul , Ozcan Aydogan 
Published: June 2017

AbstractGiardia lambliais a waterborne parasite that affects millions of people every year worldwide, causing a diarrheal illness known as giardiasis. Timely detection of the presence of the cysts of this parasite in drinking water is important to prevent the spread of the disease, especially in resource-limited settings. Here we provide extended experimental testing and evaluation of the performance and repeatability of a field-portable and cost-effective microscopy platform for automated detection and counting ofGiardiacysts in water samples, including tap water, non-potable water, and pond water. This compact platform is based on our previous work, and is composed of a smartphone-based fluorescence microscope, a disposable sample processing cassette, and a custom-developed smartphone application. Our mobile phone microscope has a large field of view of ~0.8 cm2and weighs only ~180 g, excluding the phone. A custom-developed smartphone application provides a user-friendly graphical interface, guiding the users to capture a fluorescence image of the sample filter membrane and analyze it automatically at our servers using an image processing algorithm and training data, consisting of >30,000 images of cysts and >100,000 images of other fluorescent particles that are captured, including, e.g. dust. The total time that it takes from sample preparation to automated cyst counting is less than an hour for each 10 ml of water sample that is tested. We compared the sensitivity and the specificity of our platform using multiple supervised classification models, including support vector machines and nearest neighbors, and demonstrated that a bootstrap aggregating (i.e. bagging) approach using raw image file format provides the best performance for automated detection ofGiardiacysts. We evaluated the performance of this machine learning enabled pathogen detection device with water samples taken from different sources (e.g. tap water, non-potable water, pond water) and achieved a limit of detection of 12 cysts per 10 ml, an average cyst capture efficiency of ~79%, and an accuracy of ~95%. Providing rapid detection and quantification of waterborne pathogens without the need for a microbiology expert, this field-portable imaging and sensing platform running on a smartphone could be very useful for water quality monitoring in resource-limited settings.
Perspectivas de los estudiantes sobre el uso de redes sociales en el proceso educativo superior/Perspectives of the students about the use of networks in the higher educational process
Authors: Salas Rueda Ricardo Adán , Lugo García José Luis , Ruiz Silva Héctor Fernando 
Published: June 2017

Las universidades en México están incorporando la tecnología durante la realización de las actividades educativas. De hecho, los docentes identifican y seleccionan las herramientas informáticas y aplicaciones de comunicación que permitan el desarrollo de las competencias en los estudiantes. En particular, esta investigación por medio del Enfoque cuantitativo analiza el impacto de utilizar la red social Facebook en el contexto educativo. La muestra está compuesta por 19 alumnos que cursan la Licenciatura en Gestión de Negocios y Tecnologías de Información en una universidad ubicada en la Ciudad de México. El instrumento de medición consta de 12 preguntas sobre la atención, la utilidad, el aprendizaje y la motivación al utilizar Facebook durante el ciclo escolar 2016-1. Por último, esta investigación afirma que las redes sociales mejoran la comunicación y facilitan la asimilación y el uso del conocimiento.