bluuebunny/crossref_metadata_2025_split huggingface dataset:
A novel dipicolinamide-dicarbollide synergistic solvent system for actinide extraction
Authors: Patil Ajay Bhagwan , Pathak Priyanath , Shinde Vaishali Sanjay , Alyapyshev M. Yu. , Babain Vasiliy A. , Mohapatra Prasanta Kumar 
Published: April 2014

Abstract
Solvent extraction studies of several actinide ions such as Am(III), U(VI), Np(IV), Np(VI), Pu(IV) were carried out from nitric
acid medium using a synergistic mixture of N, N′-diethyl-N, N′-di(para)fluorophenyl-2,6-dipicolinamide,
(DEtD(p)FPhDPA, DPA), and hydrogen dicarbollylcobaltate (H+CCD−) dissolved in phenyltrifluoromethylsulphone
(PTMS). The effects of different parameters such as aqueous phase acidity (0.01 – 3 M HNO3), oxidation states
of metal ions, ligand concentration, nature of diluent and temperature on the extraction behavior of metal ions were
studied. The extracted Am(III) species was determined as H+[Am(DPA)2(CCD)4]−. With increasing aqueous phase
acidities, the extractability of both Am(III) and Eu(III) was found to decrease. The synergistic mixture showed better
extraction in mM concentrations as compared to previously studied dipicolinamides. The thermodynamic studies were performed to
calculate heat of extraction reaction and the extraction constants. The proposed synergistic mixture
showed good extraction for all the metal ions, though lanthanide actinide separation results are not encouraging.
Measurement of the 240Am production cross section via proton irradiation of 242Pu
Authors: Ellison Paul A. , McLaughlin Joseph P. , Stavsetra Liv , Gregorich Kenneth E. , Nitsche Heino 
Published: April 2014

Abstract
A new nuclear reaction for the production of 240Am was experimentally investigated. Targets of
150 – 500 μg/cm2
242Pu on 2 μm
Ti were produced through molecular deposition. Five
irradiations, in which 242Pu, natTi, and natNi targets were jointly activated
with protons from the Lawrence Berkeley National Laboratory 88-Inch Cyclotron produced 240Am, 48V, and
57Ni, respectively. The radioactive decay of these nuclides was monitored using high-purity Ge gamma ray detectors
in the weeks following irradiation. A maximum 242Pu(p, 3n)240Am nuclear reaction cross section was
measured to be 45 ± 13 mb with 23 MeV protons. While this value is lower than theoretical predictions,
it is high enough to be the most viable nuclear reaction for the large-scale production of 240Am.
Design and Numerical Simulation of Radial Inflow Turbine Volute
Authors: Shah Samip P. , Channiwala S.A. , Kulshreshtha D.B. , Chaudhari Gaurang 
Published: April 2014

AbstractThe volute of a radial inflow turbine has to be designed to ensure that the desired rotor inlet conditions like absolute Mach number, flow angle etc. are attained. For the reasonable performance of vaneless volute turbine care has to be taken for reduction in losses at an appropriate flow angle at the rotor inlet, in the direction of volute, whose function is to convert gas energy into kinetic energy and direct the flow towards the rotor inlet at an appropriate flow angle with reduced losses. In literature it was found that the incompressible approaches failed to provide free vortex and uniform flow at rotor inlet for compressible flow regimes. So, this paper describes a non-dimensional design procedure for a vaneless turbine volute for compressible flow regime and investigates design parameters, such as the distribution of area ratio and radius ratio as a function of azimuth angle. The nondimensional design is converted in dimensional form for three different volute cross sections. A commercial computational fluid dynamics code is used to develop numerical models of three different volute cross sections. From the numerical models, losses generation in the different volutes are identified and compared. The maximum pressure loss coefficient for Trapezoidal cross section is 0.1075, for Bezier-trapezoidal cross section is 0.0677 and for circular cross section is 0.0438 near tongue region, which suggested that the circular cross section will give a better efficiency than other types of volute cross sections.
Investigation about Rotor-stator Interaction with an Adjustable Leaned Vane Blade
Authors: Wu Yadong , Tian Jie , Ouyang Hua , Du Zhaohui , Liu Haijian 
Published: April 2014

AbstractThis paper focuses on the noise reduction benefits of stator lean effect for rotor-stator interaction. The compressor with 3 blade lean angle of downstream stator was investigated by experimental and numerical study. The noise spectra of the acoustic measurement were obtained by the outside noise test. And the tone noise was extracted from the total noise sound pressure level (SPL). The unsteady loading of the stators' blade surface were also obtained. The pressure fluctuation amplitude was extracted from the numerical study, and the phase distribution of the wake presented the detail distribution of the wake phase. The numerical study shows that lean positive has less unsteady loading than negative, and lean positive case has the maximum phase lag.
Tunneling and Food Transportation Activity of Four Subterranean Termite Species (Isoptera: Rhinotermitidae) at Various Temperatures
Authors: Cao Runxin , Su Nan-yao 
Published: April 2014

Abstract
The effect of temperature on tunneling and food transportation activity of four subterranean termite species, Coptotermes formosanus Shiraki, Coptotermes gestroi (Wasmann), Reticulitermes virginicus (Banks), and Reticulitermes flavipes (Kollar), was examined. The experiment was conducted at 15, 20, 25, 30, and 35°C and ≈ 99% relative humidity (RH) using 10- by 10-cm planar arenas. Tunneling areas excavated by termites at 12 and 48 h were analyzed using two-way analyses of variance. The number of food particles and their total linear distance 6 h after termites reached the food source were recorded. The result showed that termites reached the food faster at higher temperatures with the exception of R. virginicus. As the temperature increased, tunneling speed generally increased, though tunnel areas at some temperatures within species at 12 and 48 h were not significantly different from each other. Once they reached the food, the tunneling speed substantially slowed down. In the food transportation study, the number of food particles and their total linear distance from the food source for C. formosanus, R. virginicus, and C. gestroi generally increased with the rise of temperature, while those for R. flavipes were temperature independent. These results may help to explain seasonal activities of the four termite species and to provide information to the application of monitoring and baiting system.
SPLIT HOPKINSON PRESSURE BAR IMPULSE EXPERIMENTAL MEASUREMENT WITH NUMERICAL VALIDATION
Authors: Baranowski Pawel , Gieleta Roman , Malachowski Jerzy , Damaziak Krzysztof , Mazurkiewicz Lukasz 
Published: April 2014

Abstract
Materials and their development process are highly dependent on proper experimental testing under wide range of loading within which high-strain rate conditions play a very significant role. For such dynamic loading Split Hopkinson Pressure Bar (SHPB) is widely used for investigating the dynamic behavior of various materials. The presented paper is focused on the SHPB impulse measurement process using experimental and numerical methods. One of the main problems occurring during tests are oscillations recorded by the strain gauges which adversely affect results. Thus, it is desired to obtain the peak shape in the incident bar of SHPB as “smooth” as possible without any distortions. Such impulse characteristics can be achieved using several shaping techniques, e.g. by placing a special shaper between two bars, which in fact was performed by the authors experimentally and subsequently was validated using computational methods.
Set-Valued Lebesgue and Riesz Type Theorems
Authors: Precupanu Anca , Gavriluţ Alina 
Published: April 2014

Abstract
In this paper, we continue a previous study concerning different types of pseudo-convergences of sequences of measurable functions with respect to set-valued nonadditive monotonic set functions and we establish some pseudo-versions of Lebesgue and Riesz theorems in the set-valued case. We also characterize some important structural properties of fuzzy multimeasures.
Effect of Section Thickness on the Microstructure and Hardness of Ductile Cast Iron
Authors: Guzel Erdogdu , Yuksel Caglar , Bayrak Yahya , Sen Ozkan , Ekerim Ahmet 
Published: April 2014

Abstract
Ductile cast irons have several engineering and manufacturing advantages compared to other cast materials such as steels. These include high damping capacity, wear resistance, to and lower manufacturing cost. The combination of good mechanical properties and casting abilities of ductile cast iron makes its usage successful in structural applications especially in the energy and automotive industries. In this study, the influence of the section thickness on the microstructure and hardness of spheroidal graphite cast iron was investigated with a cascaded model using the full mold casting method. By the high linear correlation coefficient, R2 > 0.90, it was observed that the section thickness directly affected the microstructure and hardness. An increase in the cross-sectional thickness decreases hardness and number of graphite nodules per square millimeters, however, percentage of ferrite was increased.
La critique d’exposition dans les revues d’art contemporain
Authors: Glicenstein Jérôme 
Published: April 2014

A pesar de la fuerte presencia de las exposiciones en las revistas de arte contemporáneo, casi no existe la verdadera critica. Intervienen en este fenómeno las convenciones de la crítica de arte, que no se preocupa de la experiencia de los visitantes o de los dispositivos museográficos. Analizamos los números de verano para cuatro revistas de referencia en arte contemporáneo internacional (Artforum, Art Press, Frieze, Flash Art).
Muchos artículos y todas las reseñas hablan de exposiciones, pero generalmente son pretextos para promover artistas. Solo la mitad de las reseñas se refieren concretamente a las exposiciones que mencionan. En las otras, solo hay breves comentarios sobre la colocación de las obras o visitas muy "virtuales". Nos parece que esto procede del papel que tienen estas revistas : un papel de mediación que prolonga las exposiciones.
Depression and Anxiety in Psoriatic Disease: Prevalence and Associated Factors
Authors: McDonough Emily , Ayearst Renise , Eder Lihi , Chandran Vinod , Rosen Cheryl F. , Thavaneswaran Arane , Gladman Dafna D. 
Published: April 2014

Objective.(1) To determine the prevalence of depression and anxiety in patients with psoriatic arthritis (PsA) and to identify associated demographic and disease-related factors. (2) To determine whether there is a difference in the prevalence of depression and anxiety between patients with PsA and those with psoriasis without PsA (PsC).Methods.Consecutive patients attending PsA and dermatology clinics were assessed for depression and anxiety using the Hospital Anxiety and Depression Scale. Patients underwent a clinical assessment according to a standard protocol and completed questionnaires assessing their health and quality of life. T tests, ANOVA, and univariate and multivariate models were used to compare depression and anxiety prevalence between patient cohorts and to determine factors associated with depression and anxiety.Results.We assessed 306 patients with PsA and 135 with PsC. There were significantly more men in the PsA group (61.4% vs 48% with PsC) and they were more likely to be unemployed. The prevalence of both anxiety and depression was higher in patients with PsA (36.6% and 22.2%, respectively) compared to those with PsC (24.4% and 9.6%; p = 0.012, 0.002). Depression and/or anxiety were associated with unemployment, female sex, and higher actively inflamed joint count as well as disability, pain, and fatigue. In the multivariate reduced model, employment was protective for depression (OR 0.36) and a 1-unit increase on the fatigue severity scale was associated with an increased risk of depression (OR 1.5).Conclusion.The rate of depression and anxiety is significantly higher in patients with PsA than in those with PsC. Depression and anxiety are associated with disease-related factors.
Are Baseline High Molecular Weight Adiponectin Levels Associated with Radiographic Progression in Rheumatoid Arthritis and Osteoarthritis?
Authors: Klein-Wieringa Inge R. , Andersen Stefan N. , Herb-van Toorn Linda , Kwekkeboom Joanneke C. , van der Helm-van Mil Anette H.M. , Meulenbelt Ingrid , Huizinga Tom W.J. , Kloppenburg Margreet , Toes René E.M. , Ioan-Facsinay Andreea 
Published: April 2014

Objective.To investigate whether high molecular weight adiponectin (hmwAPN) mediates the associations of total adiponectin (totAPN) with radiographic progression in rheumatoid arthritis (RA) and hand osteoarthritis (HOA).Methods.Associations between baseline hmwAPN or totAPN levels with radiographic progression were determined using multivariate linear regression or generalized estimated equations.Results.In patients with RA, totAPN associated positively, whereas in patients with HOA it associated negatively with radiographic progression. In contrast, hmwAPN did not associate significantly with radiographic progression in either cohort.Conclusion.Our data indicate that the differential effects associated between totAPN and radiographic progression in either RA or HOA are not mediated by hmwAPN.
Increased Risks of Deep Vein Thrombosis and Pulmonary Embolism in Sjögren Syndrome: A Nationwide Cohort Study
Authors: Chung Wei-Sheng , Lin Cheng-Li , Sung Fung-Chang , Hsu Wu-Huei , Chen Yung-Fu , Kao Chia-Hung 
Published: April 2014

Objective.Studies of the risks of deep vein thrombosis (DVT) and pulmonary embolism (PE) in patients with Sjögren syndrome (SS) in Asia are scant. We evaluated the effect of SS on the incidences of DVT and PE in a nationwide, population-based cohort in Taiwan.Methods.We identified patients in Taiwan diagnosed with SS between 1998 and 2008 in the Catastrophic Illness Patient Database and the National Health Insurance Research Database. Each patient with SS was matched to 4 control patients based on age, sex, and index year, and all patients were followed up from the index date to December 31, 2010. We calculated the hazard ratios (HR) and 95% CI of DVT and PE in the SS and comparison cohorts by using Cox proportional hazards regression models.Results.We followed 8920 patients with SS and a comparison cohort of 35,680 for about 50,000 and 200,000 person-years, respectively. The mean age of the SS and comparison cohorts was 53.5 and 53.1 years, respectively, and 88.9% of the patients were women. The risks of DVT and PE among the patients with SS were a 1.83-fold and 3.29-fold greater, respectively, than those for the general population after adjusting for age, sex, comorbidities, and frequency of hospitalization. The patients with a secondary SS had a greater risk of PE (adjusted HR: 5.06; 95% CI: 1.22–21.1) than those with a primary SS (adjusted HR: 3.21; 95% CI: 1.96–5.23).Conclusion.Patients with SS have a significantly greater risk of developing DVT or PE than the general population.
La Corée, une société solitaire
Authors: Choi Hang-sub 
Published: April 2014

Cet article a pour but d’illustrer les faits et les causes de la solitude des Coréens. L’aggravation de l’individualisme, la crise économique et l’augmentation du risque du chômage, le vieillissement de la population sont les causes majeures de la solitude. Les phénomènes de « singles » et de « social network services » apparaissent nettement comme les résultats de ces changements.
A numerical assessment of the use of surface nuclear magnetic resonance to monitor internal erosion and piping in earthen embankments
Authors: Irons Trevor , Quinn Meghan C. , Li Yaoguo , McKenna Jason R. 
Published: April 2014

ABSTRACTThe ability to non‐invasively detect and monitor internal erosion and piping in earthen embankments is of great value to government agencies and municipalities responsible for maintaining large numbers of civil structures. Internal erosion can be a difficult failure mode of dams and levees to assess using traditional techniques. Surface nuclear magnetic resonance is a promising technology for monitoring these structures due to its direct sensitivity to liquid water. This is a new application for the method, and requires the formulation of a robust modelling framework capable of incorporating three dimensional water content models and topography. Adaptive octree meshes represent an efficient means to perform these calculations, as they are able to adapt and refine in areas where the kernel function is changing rapidly. Given the non‐trivial challenges associated with the development of realistic water content models, we focus on first‐order effects and present six 2.5D flow models representing seepage through a loaded earthen embankment under varying levels of erosional piping. Simulation results show that the employment of multiple surface nuclear magnetic resonance transmitter and receiver loops can provide early detection and effective monitoring of piping under the assumption of a 2.5D water content model. Therefore, the surface nuclear magnetic resonance technique has promise as a means for detection and/or monitoring of internal erosion and piping in earthen embankments.
An audit of patients′ views on consent and information in the endoscopy unit
Authors: Farrukh Affifa , Mayberry John Francis 
Published: April 2014

Abstract
Background and Objectives: There is paucity of literature about the views of patients on endoscopy practices. The present study was undertaken to determine the views of patients on consent and information in the endoscopy suite and to compare patients’ views about the environment of an endoscopy unit with the standard guidelines set out by British Society of Gastroenterology. Materials and Methods: A total of 103 patients were given an anonymous questionnaire about their views on endoscopy practice. The anonymous questionnaire comprising of seven items was developed. It addressed a range of issues regarding information, consent, and discussion of results. It was distributed by the endoscopy unit’s receptionist to consecutive patients attending for either a gastroscopy or lower intestinal procedure. Results: The majority of patients (63%) did not want to receive information prior to the procedure. In addition, only a minority (29%) wanted discussions about the test to be in private. Immediately before the procedure, 40% of patients wanted to discuss the test with doctors, 23% with nurses and less than 1% with another patient (Fisher exact test, P < .0009). Thirty-five percent of patients appeared not to want to discuss the test at all. A total of 87% of patients wished to sign consent forms immediately prior to the test rather than a day before hand. A total of 51% wanted to do this in the endoscopy room itself and only 45% wanted to sign a consent form in a separate room (c2 = 1.05 n.s.). Conclusions: These views contrast strongly with the standards advocated by national societies and the accreditation boards for endoscopy units in the UK.
Dysphagia as initial presentation of primary amyloidosis
Authors: Ranjan Piyush , Goyal Mohan , Kumar Mandhir , Sachdeva Munish 
Published: April 2014

AbstractAmyloidosis involves all parts of the gastrointestinal tract including the esophagus. The esophageal involvement in amyloidosis has been reported to vary from 13% in a radiology study to 22% in an autopsy series; however, such patients have symptoms of gastroesophageal reflux. Dysphagia is an uncommon presentation of amyloidosis. We report a 64-year-old patient who presented with progressive dysphagia of 4 months duration which was confirmed to be due to primary amyloidosis with multiple myeloma. The esophageal involvement by amyloidosis was confirmed by esophageal mucosal biopsies, and 22-channel high-resolution manometry.
Role of an Audience Response System in Didactic Attendance and Assessment
Authors: Stoneking Lisa R. , Grall Kristi H. , Min Alice , Dreifuss Bradley , Spear Ellinwood Karen C. 
Published: April 2014

Abstract

Background
The Residency Review Committee for Emergency Medicine mandates conference participation, but tracking attendance is difficult and fraught with errors. Feedback on didactic sessions, if not collected in real time, is challenging to obtain.

Objective
We assessed whether an audience response system (ARS) would (1) encourage residents to arrive on time for lectures, and (2) increase anonymous real-time audience feedback.

Methods
The ARS (Poll Everywhere) provided date/time-stamped responses to polls from residents, including a question to verify attendance and questions to gather immediate, anonymous postconference evaluations. Fisher exact test was used to calculate proportions.

Results
The proportion of residents who completed evaluations prior to the institution of the ARS was 8.75, and it was 59.42 after (P &lt; .001). The proportion of faculty who completed evaluations prior to using the ARS was 6.12, and it was 85.71 after (P &lt; .001). The proportion of residents who reported they had attended the conference session was 55 for the 3 weeks prior to initiating the ARS, decreasing to 46.67 for the 3 weeks during which the ARS was used to take attendance (P  =  .46). The proportion of faculty who reported attending the conference was 5.56 for the 3 weeks prior to ARS initiation, decreasing to 4.44 for the 3 weeks while using the ARS (P  =  .81).

Conclusions
Audience response systems are an effective way to verify attendance and tardiness, eliminating the subjective effect of attendance takers' leniency and increasing completion of evaluations for didactic sessions.
Use of Prediction Methods to Assess Laboratory Bias and Mean Values Associated with an Interlaboratory Study for Method Validation and/or Proficiency Testing
Authors: McClure Foster D , Lee Jung K 
Published: April 2014

Abstract
Two methods of prediction of random variables, best predictor (BP) and best linear unbiased predictor (BLUP), are discussed as potential statistical methods to predict laboratory true mean and bias values using the sample laboratory mean (yi) from interlaboratory studies. The predictions developed here require that the interlaboratory and/or proficiency study be designed and conducted in a manner consistent with the assumptions of a one-way completely randomized model (CRM). Under the CRM the individual laboratory true mean and bias are not parameters but are defined to be random variables that are unobservable and considered as realized values that cannot be estimated but can be predicted using methods of “prediction.” The BP method is applicable when all salient parameters are known, e.g., the consensus true overall mean (μ) and repeatability and reproducibility components (σr2 and σR2), while the BLUP method is useful when σ2r and σR2 are known, but μ is estimated by the generalized least square estimator. Although the derivations of predictors are obtained by minimizing the mean-square error under the CRM assumptions, the predictors are the expected laboratory true mean and bias given the sample laboratory mean, i.e., conditional expectation.