bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of therapeutic plasma exchange on early allograft dysfunction after liver transplantation
Authors: Choe Wonho , Kwon Seog‐Woon , Kim Sung‐Soo , Hwang Shin , Song Gi‐Won , Lee Sung‐Gyu 
Published: June 2016

Background:Early allograft dysfunction (EAD) is a serious complication of liver transplantation (LT) and is associated with graft failure, which can result in patient mortality. Due to the shortage of organs for retransplantation, only a small proportion of EAD patients undergo retransplantation. Thus, liver support is needed for most patients with EAD.Methods:We evaluated the effects of therapeutic plasma exchange (TPE) in EAD patients. EAD was defined as a sustained hyperbilirubinemia (≥10 mg/dL) within 30 days of LT without concurrent biliary complications. In a 13‐year period, 107 EAD patients underwent TPE while 36 EAD patients did not. We investigated the laboratory and clinical outcomes of TPE and non‐TPE groups.Results:The TPE group showed 1‐month and 1‐year survival rates of 82.2% and 53.8%, respectively, whereas the non‐TPE group showed 58.3% and 22.2%, respectively. In TPE group, statistically significant decreases (P < 0.05) in total bilirubin (15.2 ± 5.2 to 13.1 ± 5.4 mg/dL), and INR (1.72 ± 1.04 to 1.38 ± 1.14), were seen after the final TPE session. TPE responder groups with age <51 years, total bilirubin <11.1 mg/dL, or INR <1.15 after final TPE showed better prognosis. TPE decreased the hazard risk of death in EAD patients whereas older age, male gender, and higher INR on the day of EAD onset increased the risk.Conclusions:TPE effectively removed plasma bilirubin and improved coagulation function in EAD patients, with higher survival in the TPE group than in the non‐TPE group. TPE may be an effective liver support for EAD patients. J. Clin. Apheresis 32:147–153, 2017. © 2016 Wiley Periodicals, Inc.
Review of current understanding of post‐traumatic osteoarthritis resulting from sports injuries
Authors: Carbone Andrew , Rodeo Scott 
Published: June 2016

ABSTRACTCertain types of joint injuries, common in athletes, are known to have a high association with the development of osteoarthritis (OA). Post‐traumatic osteoarthritis (PTOA) is especially debilitating due to its earlier onset than traditional OA, and its predisposition to affect a younger and more active population. Five common athletic injuries have been demonstrated to be risk factors for the development of OA. These include ACL rupture, meniscus tear, glenohumeral instability, patellar dislocation, and ankle instability. Though the mechanisms responsible for the development of PTOA are not entirely clear, certain kinematic, biologic, and mechanical factors have been implicated. In addition, there has been an increased emphasis on development of new methods to detect early OA changes in patients with known risk factors, as early intervention may prevent the development of end‐stage OA. New imaging modalities as well as the identification of specific biomarkers may allow earlier detection. Though these developments hold promise, it is not entirely known what steps we can take today to prevent the future development of OA, even with early detection. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:397–405, 2017.
A Unique Double Percolated Polymer Composite for Highly Efficient Electromagnetic Interference Shielding
Authors: Jia Li‐Chuan , Yan Ding‐Xiang , Cui Cheng‐Hua , Ji Xu , Li Zhong‐Ming 
Published: June 2016

This study has developed a carbon nanotube (CNT)/ethylene vinyl acetate (EVA)/ultrahigh molecular weight polyethylene (UHMWPE) composite with a unique double percolated conductive structure, in which only 20 wt% of CNT enriched EVA is needed to form a continuous conductive network. Compared with conventional double percolated conductive polymer composites (CPCs) which require filler‐enriched polymer content up to 50 wt%, the low CNT/EVA content gives rise to an unprecedentedly increased effective CNT concentration in the CNT/EVA/UHMWPE composite. The double percolated composite exhibits electrical conductivity comparable to that obtained in CNT‐loaded single EVA composite with five times of CNT content. Only 7.0 wt% CNT gives the composite an electromagnetic interference (EMI) shielding effectiveness of 57.4 dB, much higher than that of mostly reported CNT and graphene based CPCs. Absorption is demonstrated to be the primary shielding mechanism due to the numerous interfaces between UHMWPE domains and CNT/EVA layers facilitating multiple reflection, scattering, and absorption of the incident microwaves. The construction of unique double percolated structure in this work provides a promising strategy for developing cost‐effective and high‐performance CPCs for use as efficient EMI shielding materials.
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ABCBA Pentablock Copolymers Consisting of Poly(l‐lactide) (PLLA: A), Poly(d‐lactide) (PDLA: B), and Poly(butylene succinate) (PBS: C): Effects of Semicrystalline PBS Segments on the Stereo‐Crystallinity and Properties
Authors: Lee Chan Woo , Na Chao , Kimura Yoshiharu , Masutani Kazunari 
Published: June 2016

A new stereo pentablock copolymer consisting of poly(l‐lactide) (PLLA: A), poly‐d‐lactide (PDLA: B), and poly(butylene succinate) (PBS: C) is synthesized by two‐step ring‐opening polymerization of d‐ and l‐lactides in the presence of bis‐hydroxyl‐terminated PBS prepolymer that has been prepared by the ordinary polycondensation. The pentablock copolymers (PLLA‐PDLA‐PBS‐PDLA‐PLLA) as well as the triblock copolymers (PLLA‐PBS‐PLLA) obtained as the intermediates show different properties depending on the polymer compositions. In the pentablock copolymers, the direct connection of the PLLA and PDLA blocks allows easy formation of the stereocomplex crystals, while the introduction of the semicrystalline PBS block is effective not only for changing the crystallization kinetics but also for imparting an elastomeric property.
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Connecting Linear Polymers Molecular Structure to Viscoelastic Properties and Melt Flow Index
Authors: Touloupidis Vasileios , Wurnitsch Christof , Albunia Alexandra , Galgali Girish 
Published: June 2016

A modeling pathway and software tool for linking entangled linear polymer molecular properties to linear viscoelasticity and melt index (MI) values is presented. A reptation model links molecular properties to the flow curve, and then, an ANSYS Polyflow model calculates MI values based on the flow curve predicted. The method is thoroughly tested and validated for uni‐ and bimodal, low‐ and high‐density polyethylene grades. An overall accuracy level in the range of 90% on average is exhibited, considering both model prediction steps: (i) molecular weight distribution to flow curve and (ii) flow curve to MI.
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Large time behavior for the non‐isentropic Navier–Stokes–Maxwell system
Authors: Liu Qingqing , Su Yifan 
Published: June 2016

In this paper, we are concerned with the system of the non‐isentropic compressible Navier–Stokes equations coupled with the Maxwell equations through the Lorentz force in three space dimensions. The global existence of solutions near constant steady states is established, and the time‐decay rates of perturbed solutions are obtained. The proof for existence is due to the classical energy method, and the investigation of large‐time behavior is based on the linearized analysis of the non‐isentropic Navier–Stokes–Poisson equations and the electromagnetic part for the linearized isentropic Navier–Stokes–Maxwell equations. In the meantime, the time‐decay rates obtained by Zhang, Li, and Zhu [J. Differential Equations, 250(2011), 866‐891] for the linearized non‐isentropic Navier–Stokes–Poisson equations are improved. Copyright © 2016 John Wiley & Sons, Ltd.
Toward ab initio potential energy surface for paclitaxel: a baccatin III conformational study
Authors: Janicki Maciej , Lozynski Marek 
Published: June 2016

AbstractThe ab initio conformational energy profile of baccatin III, the diterpene part of paclitaxel, a natural, taxoid anticancer agent, has been investigated using medium‐size basis sets including an electron correlation method (MP2/DFT). By exploiting the internal coordinates using random search methods, 39 conformers of baccatin III were found. The most stable conformer, competing with its 13‐C rotamers, was shown to have three intramolecular hydrogen bonds of 1, 7 and 13 hydroxyls to the carbonyl oxygen atoms of 2‐benzoate and 10‐ and 4‐acetate ester groups, respectively. The results of the polarizable continuum model (PCM) used to account for the dielectric effect of the environment show that in water, the delicate balances between intramolecular hydrogen bridges and general conformational preferences are conserved, at least in the absence of explicit solvent molecules. Copyright © 2016 John Wiley & Sons, Ltd.
Links between personality, time perspective, and intention to practice physical activity during cancer treatment: an exploratory study
Authors: Villaron Charlène , Marqueste Tanguy , Eisinger François , Cappiello Maria‐Antonietta , Therme Pierre , Cury François 
Published: June 2016

SummaryObjectiveThe purpose of the study was to analyze links between personality, time perspective, and intention to practice physical activity during cancer treatment.MethodOne hundred forty‐three patients participated in survey by questionnaire. Intention to practice physical activity, time perspective using Zimbardo Time Perspective Inventory, and personality with the Big Five Inventory were measured. Structural equation models using Lisrel were developed to examine hypothetical links between the variables.ResultsThe adjusted model evidenced an excellent fit (comparative fit index = 0.92; root‐mean‐square error of approximation = 0.076; P = .014). Results showed that intention to practice exercise was positively linked with openness to experience and negatively with present fatalist time perspective. Moreover, conscientiousness and neuroticism were found to be linked with future time perspective, which was positively related with intention to practice physical activity.ConclusionThe present exploratory study with patients suffering from cancer underlined the importance of considering jointly time perspective dimensions and personality factors for health behavior recommendations. Based on our results, we propose some reflections on practice to help nurses and physicians increase patient's motivation to be physically active. Taking into account patients' personality and time perspective, we would be able to propose specific awareness messages and offer short interventions to have an impact on patients' motivation to practice.
Role of granulocyte‐macrophage colony‐stimulating factor in pulmonary fibrosis following pulmonary alveolar proteinosis
Authors: Sha Joy , Langton David 
Published: June 2016

AbstractPulmonary alveolar proteinosis (PAP) is a rare diffuse lung disease characterized by accumulation of lipoproteinacious material in alveoli, with distinct features on high resolution computed tomography and biopsy. Its association with pulmonary fibrosis is infrequently encountered, and a clear understanding of the underlying pathogenesis is yet to be established. We report the case of a 48‐year‐old woman with known autoimmune PAP (aPAP) first diagnosed 20 years ago, who presented with worsening hypoxemia and radiological features consistent with pulmonary fibrosis, after many years of stable disease. We present a review of previously considered mechanisms of causation behind such changes, and in particular, postulate the role of granulocyte‐macrophage colony‐stimulating factor deficiency in pulmonary fibrosis seen in aPAP.
Exercise‐induced endobronchial hemorrhage: a rare clinical presentation
Authors: Kruavit Anuk , Jain Mukesh , Fielding David , Heraganahally Subash 
Published: June 2016

AbstractThe phenomenon of exercise‐induced hemoptysis is still relatively underrecognised in humans. We report a case of recurrent hemoptysis brought on by vigorous exercise. A 33‐year‐old male presented with several episodes of intermittent fresh small‐volume hemoptysis reproducible on vigorous exercise. There was no other significant medical history other than a past history of testicular tumor, treated with orchidectomy and adjuvant Bleomycin‐based chemotherapy 1 year prior to onset of symptoms. Computed tomography scan showed no major abnormalities other than few small bilateral non‐specific nodules. Computed tomography aortogram and pulmonary angiogram, ventilation/perfusion scan, and echocardiography yielded no significant abnormalities. Infectious, autoimmune disease, coagulopathy, vasculitis, and malignant causes were excluded. Bronchoscopy showed possible endobronchial bleeding. This phenomenon is thought to be due to vulnerability of pulmonary capillaries to stress or mechanical failure during strenuous exercise at high cardiorespiratory workload.
PM2.5 forecasting with hybrid LSE model‐based approach
Authors: Chen Yunliang , Li Fangyuan , Deng Ze , Chen Xiaodao , He Jijun 
Published: June 2016

SummaryPM2.5 time series have the features of non‐stationary and nonlinear. Existing forecasting methods for PM2.5 cannot achieve high accuracy for they have ignored the potential characteristics of PM2.5 time series. Aiming at this problem, a hybrid approach using local mean decomposition and Support Vector Regression (SVR)‐Elman (LSE) is firstly proposed in this paper to analyse 5days ahead PM2.5 concentrations for forecasting in Wuhan, China: (1) the meaningful PF1‐PF5 components are extracted from original PM2.5 time series by local mean decomposition; (2) the first high‐frequency product function is managed by using the SVR model, such that the relationship between PM2.5 and other air quality data can be revealed accurately; (3) the other components are trained by Elman model with the sliding window method. Experimental results show that, compared with multiple linear regression, autoregressive integrated moving average, BP neural network, and SVR models, the proposed hybrid LSE model‐based approach exhibits the best performance in terms of R2, MAE, MAPE, RMSE, while it is applied for forecasting in real datasets. Copyright © 2016 John Wiley & Sons, Ltd.
Developing a learning progression for sea level rise, a major impact of climate change
Authors: Breslyn Wayne , McGinnis J. Randy , McDonald R. Christopher , Hestness Emily 
Published: June 2016

AbstractWe present research from an investigation on developing a learning progression (LP) for sea level rise (SLR), a major effect of global climate change. We began our research by drafting a hypothetical LP for sea level rise, informed by extant knowledge of the topic in the scientific community, in science education literature, and in science education policy documents such as the Next Generation Science Standards. Causes and mechanisms, scale and representations, and impacts made up the three components of the LP. Our confidence in our hypothetical LP was greater for the lower and upper anchors than for the levels between them. For all levels, however, we remained tentative due to the limitation of empirical data from learners. We next developed an assessment instrument as well as an online activity as a way to elicit learners’ thinking about sea level rise. These instruments were administered to middle school students (N = 95) and undergraduate pre‐service teachers (N = 77). An analysis of the data suggested that our hypothetical LP for sea level rise was a necessary first step, but it underscored the necessity of probing learners’ thinking of the construct to develop a robust understanding of learners’ conceptual understanding overtime of SLR. The assessment data provided essential information about learner understanding of the construct of sea level rise that assisted us in moving our SLR LP from a hypothetical state to a more stable state, which we term as “conditional.” The development of a conditional SLR LP, along with the accompanying assessment instruments, contributes to research and thinking about learning progressions and climate change education. © 2016 Wiley Periodicals, Inc. J Res Sci Teach 53: 1471–1499, 2016
Posttranslational control of HuR function
Authors: Grammatikakis Ioannis , Abdelmohsen Kotb , Gorospe Myriam 
Published: June 2016

The RNA‐binding protein HuR (human antigen R) associates with numerous transcripts, coding and noncoding, and controls their splicing, localization, stability, and translation. Through its regulation of target transcripts, HuR has been implicated in cellular events including proliferation, senescence, differentiation, apoptosis, and the stress and immune responses. In turn, HuR influences processes such as cancer and inflammation. HuR function is primarily regulated through posttranslational modifications that alter its subcellular localization and its ability to bind target RNAs; such modifications include phosphorylation, methylation, ubiquitination, NEDDylation, and proteolytic cleavage. In this review, we describe the modifications that impact upon HuR function on gene expression programs and disease states. WIREs RNA 2017, 8:e1372. doi: 10.1002/wrna.1372This article is categorized under:

RNA Interactions with Proteins and Other Molecules > Protein–RNA Recognition
RNA Interactions with Proteins and Other Molecules > RNA–Protein Complexes
Interference competition between an invasive parakeet and native bird species at feeding sites
Authors: Le Louarn Marine , Couillens Bertrand , Deschamps-Cottin Magali , Clergeau Philippe 
Published: June 2016

Abstract
Interference competition has proved to be a factor of successful establishment of invasive species. This type of competition may have a stronger impact when native species have temporal niche overlap with the invasive species. The ring-necked parakeet Psittacula krameri has been successfully introduced in many countries and its interspecific agonistic behavior has already been reported. The purpose of this study is to analyze the territorial and preemptive interference competition between the ring-necked parakeet and native bird species in a recently colonized area. We used an empirical approach by recording video sequences in gardens equipped with bird feeders in winter. Our results showed that the ring-necked parakeet was the most frequent species at the feeders. Several native species showed temporal niche overlap with the ring-necked parakeet, the highest overlap being with the starling Sturnus vulgaris. The starling was also the species most impacted by interference competition with the parakeet. Our study suggests that, by being most frequently present at the feeders, by demonstrating the most agonistic behavior and by hindering access to food of the other species, the ring-necked parakeet is a superior competitor and may compete with native bird species.
Point-to-Point Collision-Free Trajectory Planning for Mobile Manipulators
Authors: Pajak Grzegorz , Pajak Iwona 
Published: June 2016

AbstractThe collision-free trajectory planning method subject to control constraints for mobile manipulators is presented. The robot task is to move from the current configuration to a given final position in the workspace. The motions are planned in order to maximise an instantaneous manipulability measure to avoid manipulator singularities. Inequality constraints on state variables i.e. collision avoidance conditions and mechanical constraints are taken into consideration. The collision avoidance is accomplished by local perturbation of the mobile manipulator motion in the obstacles neighbourhood. The fulfilment of mechanical constraints is ensured by using a penalty function approach. The proposed method guarantees satisfying control limitations resulting from capabilities of robot actuators by applying the trajectory scaling approach. Nonholonomic constraints in a Pfaffian form are explicitly incorporated into the control algorithm. A computer example involving a mobile manipulator consisting of nonholonomic platform (2,0) class and 3DOF RPR type holonomic manipulator operating in a three-dimensional task space is also presented.
An explorative investigation of functional differences in plantar center of pressure of four foot types using sample entropy method
Authors: Mei Zhanyong , Ivanov Kamen , Zhao Guoru , Li Huihui , Wang Lei 
Published: June 2016

Abstract
In the study of biomechanics of different foot types, temporal or spatial parameters derived from plantar pressure are often used. However, there is no comparative study of complexity and regularity of the center of pressure (CoP) during the stance phase among pes valgus, pes cavus, hallux valgus and normal foot. We aim to analyze whether CoP sample entropy characteristics differ among these four foot types. In our experiment participated 40 subjects with normal feet, 40 with pes cavus, 19 with pes valgus and 36 with hallux valgus. A Footscan® system was used to collect CoP data. We used sample entropy to quantify several parameters of the investigated four foot types. These are the displacement in medial–lateral (M/L) and anterior–posterior (A/P) directions, as well as the vertical ground reaction force of CoP during the stance phase. To fully examine the potential of the sample entropy method for quantification of CoP components, we provide results for two cases: calculating the sample entropy of normalized CoP components, as well as calculating it using the raw data of CoP components. We also explored what are the optimal values of parameters m (the matching length) and r (the tolerance range) when calculating the sample entropy of CoP data obtained during the stance phases. According to statistical results, some factors significantly influenced the sample entropy of CoP components. The sample entropies of non-normalized A/P values for the left foot, as well as for the right foot, were different between the normal foot and pes valgus, and between the normal foot and hallux valgus. The sample entropy of normalized M/L displacement of the right foot was different between the normal foot and pes cavus. The measured variable for A/P and M/L displacements could serve for the study of foot function.
Solid screw insertion for tension band plates: A surgical technique tip
Authors: Kadhim Muayad , Hammouda Ahmed I. , Herzenberg John E. 
Published: June 2016

Purpose Growth modulation with tension band plates (TBPs) and cannulated screws is the current mainstay of treatment for pediatric lower extremity angular deformities. Solid screws have been used as an alternative to cannulated screws to decrease the risk of screw failure, particularly in obese children. The downside of solid screws is the decrease in precision of placement. This study describes a surgical technique to insert solid TBP screws accurately. Methods TBP insertion starts with the same conventional steps by inserting the guidewires into the epiphysis and metaphysis, straddling the physis. After fluoroscopic confirmation of the position of the guidewires, the cannulated drill bit is used to broach the cortex to a depth of 5 mm in the bone. A standard 4.5-mm cannulated screw from the TBP set is used to tap the screw tract over the guidewires for approximately three-quarters of the planned screw length. After removing the guidewires, the solid screws are then inserted in each hole to follow the tapped tracts. Results This technique was used in five patients including four with Blount disease and one with bilateral genu varum. Conclusion It is recommended to use solid screws with TBPs in patients with a high body mass index to avoid screw fracture. Our technique describes using a cannulated screw as a tap to create a tract to ease accurate insertion of the solid screws, and prevent the solid screw from deviating outside the desired path.