bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mineralogy and geochemistry of sands along the Manzanillo and El Carrizal beach areas, southern Mexico: implications for palaeoweathering, provenance and tectonic setting
Authors: Armstrong‐Altrin John S. , Lee Yong Il , Kasper‐Zubillaga Juan J. , Trejo‐Ramírez Elisandra 
Published: April 2016

AbstractThe provenance of sands from the Manzanillo (MN) and El Carrizal (CAR) beach areas along the Mexican Pacific coast (southern Mexico) was investigated based on their modal composition, mineralogy and geochemical data. The average quartz, feldspar and lithic fragment (QFL) ratios revealed that the proportion of quartz is higher in CAR sands than in MN sands. In comparison with MN, the CAR sands are enriched in SiO2 content with higher SiO2/Al2O3 ratio indicating that sediment recycling is greatest for the CAR sands. The variation in K2O/Al2O3 and Na2O/K2O ratios between the MN and CAR sands specified a difference in the relative proportion of plagioclase. The chemical index of alteration (CIA) and Plagioclase Index of Alteration (PIA) values revealed a moderate weathering intensity in the source areas. The MN sands are characterized by a low degree of rare earth element (REE) fractionation (LaCN/YbCN = ~6–7), whereas the CAR sands define fractionated REE patterns (LaCN/YbCN = ~8.8–16.8). The fractionated REE pattern with elevated total low REE (∑LREE) content of the CAR sands suggested that sediment sorting is higher for the CAR than MN sands. Small negative and positive Eu anomalies (Eu/Eu* = ~0.91–1.23) of MN sands indicated the derivation of sediments from felsic‐intermediate source rocks. The CAR sands showed higher concentration of ∑LREE than total heavy REE (∑HREE) and characterized by a significant negative Eu anomaly (Eu/Eu* = ~0.46–0.78), suggested that the source rock is felsic type. The result obtained by the comparison of REE patterns of the beach sands to the probable source rocks is also consistent with this observation. The compositional differences identified between the MN and CAR beach areas suggested that longshore current in the mixing and homogenization of sands is not significant. The new tectonic discriminant‐function‐based multidimensional diagrams showed an arc setting (active) for the MN sands and a rift setting (passive) for the CAR sands, which is consistent with the regional geology of southern Mexico. Copyright © 2016 John Wiley & Sons, Ltd.
The atlas network: a “strategic ally” of the tobacco industry
Authors: Smith Julia , Thompson Sheryl , Lee Kelley 
Published: April 2016

SummaryAmid growing academic and policy interest in the influence of think tanks in public policy processes, this article demonstrates the extent of tobacco industry partnerships with think tanks in the USA, and analyzes how collaborating with a network of think tanks facilitated tobacco industry influence in public health policy. Through analysis of documents from tobacco companies and think tanks, we demonstrate that the Atlas Economic Research Foundation, a network of 449 free market think tanks, acted as a strategic ally to the tobacco industry throughout the 1990s. Atlas headquarters, while receiving donations from the industry, also channeled funding from tobacco corporations to think tank actors to produce publications supportive of industry positions. Thirty‐seven per cent of Atlas partner think tanks in the USA received funding from the tobacco industry; the majority of which were also listed as collaborators on public relations strategies or as allies in countering tobacco control efforts. By funding multiple think tanks, within a shared network, the industry was able to generate a conversation among independent policy experts, which reflected its position in tobacco control debates. This demonstrates a coherent strategy by the tobacco industry to work with Atlas to influence public health policies from multiple directions. There is a need for critical analysis of the influence of think tanks in tobacco control and other health policy sectors, as well as greater transparency of their funding and other links to vested interests. © 2016 The Authors The International Journal of Health Planning and Management Published by John Wiley & Sons Ltd
Hydrological alterations from water infrastructure development in the Mekong floodplains
Authors: Dang Thanh Duc , Cochrane Thomas A. , Arias Mauricio E. , Van Pham Dang Tri , de Vries Tonny T. 
Published: April 2016

AbstractThe Mekong floodplains, which encompasses the region from Kratie Township in Central Cambodia to the Vietnamese East Sea, is a region of globally renown agricultural productivity and biodiversity. The construction of 135 dams across the Mekong basin and the development of delta‐based flood prevention systems have caused public concern given possible threats on the stability of agricultural and ecological systems in the floodplains. Mekong dams store water upstream and regulate flow seasonality, while in situ flood prevention systems re‐distribute water retention capacity in the floodplains. The main aim of this paper is to evaluate possible impacts of the recent development of both hydropower dams and flood prevention systems on hydrological regimes in the Mekong floodplains. An analysis of measured daily and hourly water level data for key stations in the Mekong floodplains from Kratie to the river mouth in Vietnam was conducted. Hydropower dam information was obtained from the hydropower database managed by the Mekong River Commission, and the MODIS satellite imagery was used to detect changes in flooding extent related to the operation of flood prevention systems in the Vietnam Mekong Delta. Results indicate that the upper part of the floodplains, the Cambodian floodplains, may buffer upstream dam impacts to the Vietnam Mekong Delta. Flood prevention up to date has had the greatest effect on the natural hydrological regime of the Mekong floodplains, evidenced by a significant increase of water level rise and fall rates in the upper delta and causing water levels in the middle delta to increase. The development of flood prevention systems has also effected spatial distribution of flooding as indicated via a time series analysis of satellite imagery. While this development leads to increase localized agricultural productivity, our historical data analysis indicates that development of one region detrimentally affects other regions within the delta, which could increase the risk of future conflicts among regions, economic sectors and the ecological value of these important floodplains. Copyright © 2016 John Wiley & Sons, Ltd.
Biocompatibility versus peritoneal mesothelial cells of polypropylene prostheses for hernia repair, coated with a thin silica/silver layer
Authors: Muzio Giuliana , Perero Sergio , Miola Marta , Oraldi Manuela , Ferraris Sara , Vernè Enrica , Festa Federico , Canuto Rosa Angela , Festa Valentino , Ferraris Monica 
Published: April 2016

AbstractHernias are generally repaired using synthetic prostheses. Infection may already be present or develop during implantation. Based on the increasing resistance to antibiotics, and the well‐known antimicrobial properties of silver (Ag), the possibility of coating hernia prostheses with a nanostructured layer containing Ag was explored. Prostheses (Clear Mesh Composite [CMC]) made up of two polypropylene layers (macroporous light mesh and thin transparent film) were tested with human mesothelial cells from omentum biopsies. Mesotheliocytes modulate abdominal wall healing producing cytokines, growth factors, and adhesion molecules. Evaluating the growth of these cells on CMC or film alone showed that cell numbers on CMC increased over time, and were higher than those on film alone. Vimentin immunostaining confirmed the cells to be mesotheliocytes. Subsequently, the biocompatibility of mesh layer, coated or not with a thin layer of Ag/SiO2‐nanoclusters, was analyzed, showing no difference in absence or presence of Ag/SiO2. Differently, TGF‐β2 production, involved in tissue repair and fibrosis, increased in the presence of Ag/SiO2. Moreover, Ag/SiO2‐coated mesh showed antibacterial properties. In conclusion, the mesh layer coated with Ag/SiO2 afforded cell growth, and showed antibacterial activity. Coating only the mesh layer did not decrease film transparency, and did not favor the formation of adhesions on the visceral side. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1586–1593, 2017.
Prevalence and Demographic Correlates of Alexithymia: A Comparison Between Australian Psychiatric and Community Samples
Authors: McGillivray Lauren , Becerra Rodrigo , Harms Craig 
Published: April 2016

ObjectivesA cross‐sectional empirical design was used to compare differences in alexithymia between Australian psychiatric and community samples and examine the influence of sample type on the relation between alexithymia and psychological distress.MethodPsychiatric outpatients (N = 151) and a convenience sample of the general community (N = 216) completed questionnaires measuring alexithymia and psychological distress.ResultsAlexithymia was several times more prevalent in the psychiatric sample than the community sample. While the psychiatric sample reported greater psychological distress, no difference was found in the strength of the association between alexithymia and psychological distress between the study samples.ConclusionThese findings emphasize the pervasive problem alexithymia presents within the Australian psychiatric population and the importance of increasing recognition of alexithymia for the future research about and treatment of psychiatric patients.
A Two‐Step Method Based on Micromechanical Models to Predict the Young's Modulus of Polymer Nanocomposites
Authors: Zare Yasser 
Published: April 2016

A two‐step method is suggested to predict the Young's modulus of polymer nanocomposites assuming the interphase between polymer matrix and nanoparticles. At first, nanoparticles and their surrounding interphase are assumed as effective particles with core–shell structure and their modulus is predicted. At the next step, the effective particles are taken into account as a dispersed phase in polymer matrix and the modulus of composites is calculated. The predictions of the two‐step method are compared with the experimental data in absence and presence of interphase and also, the influences of nanoparticles size as well as interphase thickness and modulus on the Young's modulus of nanocomposites are explored. The predictions of the suggested model show good agreement with the experimental data by proper ranges of interphase properties. Moreover, the interphase thickness and modulus straightly affect the modulus of nanocomposites. Also, smaller nanoparticles create a higher level of modulus for nanocomposites, due to the large surface area at interface and the strong interfacial interaction between polymer matrix and nanoparticles.image
Electrospun Differential Wetting Membranes for Efficient Oil–Water Separation
Authors: Ganesh Venkatesan Anand , Ranganath Anupama Sargur , Baji Avinash , Wong Him Cheng , Raut Hemant Kumar , Sahay Rahul , Ramakrishna Seeram 
Published: April 2016

Separation of low viscous oil from water has attracted immense attention in recent times due to the ever‐increasing amount of oily industrial wastewater discharge and frequent oil spill accidents. Hence, there is a persistent demand for the fabrication of robust oil–water separation membranes. Herein, robust oil–water separation membranes are successfully fabricated by direct electrospinning of poly(vinylidene fluoride‐co‐hexafluoropropylene) and fluorinated polyhedral oligomeric silsesquioxane composite mixture. These hybrid membranes exhibit differential wetting (highly hydrophobic/superoleophilic) behavior for water and oil. The contact angle made by water and low viscous oil (hexane) with the membrane are measured to be 145 and 0° respectively. The nanofiber membranes efficiently separate low viscous oil from water in a single‐step with separation efficiency of nearly 100%. Furthermore, the results demonstrate that the membranes are robust and durable exhibiting differential wettability even after several oil–water separation cycles. The results reveal the potential of their use for real‐time industrial wastewater treatment applications.image
A Highly Stretchable Polymer that Can Be Thermally Healed at Mild Temperature
Authors: Jia Xiao‐Yong , Mei Jin‐Feng , Lai Jian‐Cheng , Li Cheng‐Hui , You Xiao‐Zeng 
Published: April 2016

Combining stretchability and self‐healing properties in a man‐made material is a challenging task. For an efficient self‐healing material, weaker dynamic or reversible bonds should be presented as crosslinks so that they will first break upon damage and then reform after healing, which is not favorable when developing elastic materials. In this work, by incorporating dynamic Fe(III)‐triazole coordination bonds into polydimethylsiloxane (PDMS) backbone, a highly elastic polymer is obtained that can be thermally healed at mild temperature. The as‐prepared polymer can be stretched to 3400% strain at low loading speed (1 mm min–1). When damaged, the polymer can be thermally healed at 60 °C for 20 h with a healing efficiency of over 90%. The good mechanical and healable properties of this polymer can be ascribed to the unique coordination bond strength and coordination conformation of Fe(III)‐triazole coordination complex.
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Advances in surgery for movement disorders
Authors: Rowland Nathan C. , Sammartino Francesco , Lozano Andres M. 
Published: April 2016

ABSTRACTMovement disorder surgery has evolved throughout history as our knowledge of motor circuits and ways in which to manipulate them have expanded. Today, the positive impact on patient quality of life for a growing number of movement disorders such as Parkinson's disease is now well accepted and confirmed through several decades of randomized, controlled trials. Nevertheless, residual motor symptoms after movement disorder surgery such as deep brain stimulation and lack of a definitive cure for these conditions demand that advances continue to push the boundaries of the field and maximize its therapeutic potential. Similarly, advances in related fields — wireless technology, artificial intelligence, stem cell and gene therapy, neuroimaging, nanoscience, and minimally invasive surgery — mean that movement disorder surgery stands at a crossroads to benefit from unique combinations of all these developments. In this minireview, we outline some of these developments as well as evidence supporting topics of recent discussion and controversy in our field. Moving forward, expectations remain high that these improvements will come to encompass an even broader range of patients who might benefit from this therapy and decrease the burden of disease associated with these conditions. © 2016 International Parkinson and Movement Disorder Society
Prevalence of anxiety in Parkinson's disease: A systematic review and meta‐analysis
Authors: Broen Martijn P. G. , Narayen Nadia E. , Kuijf Mark L. , Dissanayaka Nadeeka N. W. , Leentjens Albert F. G. 
Published: April 2016

ABSTRACTObjectivePrevalence rates of anxiety disorders in Parkinson's disease (PD) vary widely, ranging from 6% up to 55%. The aim of this systematic review was to calculate the average point prevalence of anxiety disorders and clinically relevant anxiety symptoms in PD.MethodsUsing PubMed, we carried out a systematic literature search for studies reportingDiagnostic and Statistical Manual–defined anxiety disorders or clinically relevant anxiety symptoms assessed by an anxiety rating scale.ResultsA total of 49 articles were included and assessed for quality, and 45 articles fulfilled the quality criteria. The average point prevalence of anxiety disorders in PD was 31%, with nonepisodic anxiety being more prevalent than episodic anxiety. Generalized anxiety disorder was the most frequent in 14%, followed by social phobia (13.8%), anxiety not otherwise specified (13.3%), and specific phobia (13.0%). Panic disorder with or without phobia was present in 6.8% of PD patients. Of the patients, 31% fulfilled the criteria for current multiple anxiety disorders. Based on anxiety rating scale cutoff scores, clinically significant anxiety symptoms were present in a weighted average of 25.7%.ConclusionThis systematic review confirms that anxiety, although often unrecognized, is very common and highlights the need for efficient identification of anxiety in PD. © 2016 International Parkinson and Movement Disorder Society
Action of naftopidil on spinal serotonergic neurotransmission for inhibition of the micturition reflex in rats
Authors: Sugaya Kimio , Nishijima Saori , Kadekawa Katsumi , Ashitomi Katsuhiro , Ueda Tomoyuki , Yamamoto Hideyuki , Hattori Tsuyoshi 
Published: April 2016

AimsWe examined the mechanism of action of naftopidil, an α1D/A blocker, on spinal descending serotonergic neurotransmission for the micturition reflex.MethodsWe examined (1) urinary 5‐hydroxyindole acetic acid (5‐HIAA) after intraperitoneal administration of saline, para‐chlorophenylalanine (PCPA; a serotonin synthetic enzyme inhibitor), and/or 5‐hydroxytryptophan (5‐HTP; a serotonin precursor); (2) isovolumetric cystometry after intraperitoneal administration of saline, PCPA, and/or 5‐HTP and intravenous injection of naftopidil; and (3) isovolumetric cystometry before and after intrathecal administration of serotonin (5‐HT) receptor antagonists and intravenous injection of naftopidil.ResultsPCPA decreased and 5‐HTP increased urinary 5‐HIAA/creatinine. Intraperitoneal injection of PCPA did not influence cystometric parameters. Intraperitoneal injection of 5‐HTP significantly shortened the interval between bladder contractions. Intravenous injection of naftopidil transiently abolished bladder contractions. However, the duration of abolishment of bladder contractions after injection of naftopidil in rats given PCPA was significantly shorter than that in rats given vehicle, but significantly longer than that in rats given PCPA and 5‐HTP. Intrathecal injection of 5‐HT1B, 5‐HT3, or 5‐HT7 receptor antagonists significantly prolonged the interval between bladder contractions. Intrathecal injection of 5‐HT1D or 5‐HT2B receptor antagonists significantly shortened the interval between bladder contractions. Combined administration of the maximum non‐effective dose of 5‐HT1D, 5‐HT2A, 5‐HT2B, 5‐HT2C, or 5‐HT3 receptor antagonists and intravenous injection of naftopidil significantly shortened the duration of abolishment of bladder contraction compared to intravenous injection of naftopidil alone.ConclusionsNaftopidil may inhibit the micturition reflex via 5‐HT1D, 5‐HT2A, 5‐HT2B, 5‐HT2C, and 5‐HT3 receptors in the spinal cord. Neurourol. Urodynam. 36:604–609, 2017. © 2016 Wiley Periodicals, Inc.
Validation of a strategy for harbor defense based on the use of a min‐max algorithm receding horizon control law
Authors: Foraker Joseph , Lee Seungho , Polak Elijah 
Published: April 2016

AbstractWe present a validation of a centralized feedback control law for robotic or partially robotic water craft whose task is to defend a harbor from an intruding fleet of water craft. Our work was motivated by the need to provide harbor defenses against hostile, possibly suicidal intruders, preferably using unmanned craft to limit potential casualties. Our feedback control law is a sample‐data receding horizon control law, which requires the solution of a complex max‐min problem at the start of each sample time. In developing this control law, we had to deal with three challenges. The first was to develop a max‐min problem that captures realistically the nature of the defense‐intrusion game. The second was to ensure the solution of this max‐min problem can be accomplished in a small fraction of the sample time that would be needed to control a possibly fast moving craft. The third, to which this article is dedicated, was to validate the effectiveness of our control law first through computer simulations pitting a computer against a computer or a computer against a human, then through the use of model hovercraft in a laboratory, and finally on the Chesapeake Bay, using Yard Patrol boats. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 247–259, 2016
Immobilization of Cellulase on Magnetic Nanocarriers
Authors: Roth Hans‐Christian , Schwaminger Sebastian P. , Peng Fei , Berensmeier Sonja 
Published: April 2016

AbstractThe constant increase in the number of sustainable products on the global markets demands new biotechnological processing strategies such as the purification and recovery of biocatalysts. Superparamagnetic iron oxide nanoparticles exhibit excellent recovery properties as carrier materials in enzyme catalysis. We present the simple and fast electrostatic assembly of cellulase (CEL) and low‐priced silica‐coated magnetic nanoparticles, which demonstrates stable enzyme bonding and excellent colloidal stability. The high CEL loading (0.43 g g−1), without leaching of biocatalyst and high recovery yields (75 %), could be sustained over ten magnetic recycling steps. The highlight of this study is the preservation of a high enzymatic activity and, therefore, the outstandingly high lifecycle stability.
Positive predictive values of selected hospital discharge diagnoses to identify infections responsible for hospitalization in the French national hospital database
Authors: Sahli Line , Lapeyre‐Mestre Maryse , Derumeaux Hélène , Moulis Guillaume 
Published: April 2016

AbstractPurposeThe identification of infections in electronic health databases is a key issue for pharmacoepidemiology research. The aim of this study was to assess the positive predictive values (PPVs) of hospitalizations for infection in the Système National d'Information Inter‐régimes de l'Assurance Maladie, that is the electronic database recording in‐and‐out hospital data for the entire French population (66 million inhabitants).MethodsThe source of data was the database of hospitalizations (Programme de Médicalisation des Systèmes d'Informations) of Toulouse University hospital, South of France (2880 beds). Among all hospital stays between September and December 2014, we randomly selected 100 stays with an International Classification of Diseases, 10th revision code of infection as primary diagnosis and 100 as related diagnosis. Medical charts were reviewed to assess the PPV of infection codes, as well as the PPV of correct coding of infection type among the true positive cases.ResultsThe PPVs of codes of infection as reason for hospitalization were 0.97, 95% confidence interval (CI) [0.93–1.00] for primary diagnosis codes and 0.70, 95% CI [0.61–0.71] for related diagnosis codes. Among the true positive cases, the PPVs of correct coding of the type of infection were, respectively, 0.98, 95% CI [0.95–1.00] and 0.93, 95% CI [0.88–0.98].ConclusionsHospitalizations for infection codes have very good PPVs in the Programme de Médicalisation des Systèmes d'Informations. Copyright © 2016 John Wiley & Sons, Ltd.