bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of guidelines for intraductal papillary mucinous neoplasm: What is the next step beyond the current guidelines?
Authors: Nakamura Masafumi , Miyasaka Yoshihiro , Sadakari Yoshihiko , Date Kenjiro , Ohtsuka Takao 
Published: June 2017

AbstractManagement of intraductal papillary mucinous neoplasm is controversial, and several guidelines have aimed to establish an adequate strategy for surgical resection and surveillance. We compared various intraductal papillary mucinous neoplasm guidelines and considered new matters that are pivotal for improved treatment of intraductal papillary mucinous neoplasm. We identified and compared 11 published guidelines, three of which were major guidelines that mainly referred to the diagnosis and treatment of intraductal papillary mucinous neoplasm (International Association of Pancreatology 2012 guidelines, European Study Group on Cystic Tumours of the Pancreas 2013 guidelines, and American Gastroenterological Association 2015 guidelines). The main concerns of these three guidelines were indication for surgery and follow up of non‐resected lesions. Among the differences between the three guidelines, the period of surveillance recommended was the most controversial matter. Meanwhile, several nomograms have been proposed to improve the diagnosis of intraductal papillary mucinous neoplasm from the level of experts' experiences to that of rational systems. We discuss the adequate strategy of surveillance for intraductal papillary mucinous neoplasm with and without pancreatectomy and nomograms aiming to predict the risk of malignancy in patients with intraductal papillary mucinous neoplasm.
Maternal‐infant interaction as an influence on infant adiposity
Authors: Holdsworth Elizabeth A. , Schell Lawrence M. 
Published: June 2017

AbstractObjectivesThe aim of this research is to identify whether specific aspects of the early life psychosocial environment such as quality of home and maternal‐infant interaction are associated with increased infant adiposity, in a disadvantaged population in the United States.METHODSData on 121 mother‐infant pairs from the Albany Pregnancy and Infancy Lead Study were analyzed using three multiple linear regression models with subscapular skinfold thickness (SST), triceps skinfold thickness (TST), and weight z‐scores at 12 months of age as outcome variables. Maternal‐infant interaction was indexed by the Nursing Child Assessment Teaching Scales (NCATS) and home environment quality was indexed by the Home Observation for Measurement of the Environment (HOME).RESULTSIn models including infant birth weight, cigarette use in second trimester, infant caloric intake at 9–12 months, size at birth for gestational age, infant sex, and mother's prepregnancy BMI, specific subscales of NCATs predicted infant adiposity z‐scores. Poorer mother's response to infant distress was associated with greater SST (
= −0.20, P = .02), TST (
= −0.19, P = .04), and weight (
= −0.14, P = .05). Better maternal sensitivity to infant cues was associated with larger SST (
= 0.25, P < .01), while mother's poorer social‐emotional growth fostering predicted greater SST (
= −0.23, P < .01) and weight (
= −0.16, P = .03). Better scores on HOME Organization of the Environment were associated with greater SST (
= 0.34, P = .02) and TST (
= 0.33, P = .04).CONCLUSIONSEmotionally relevant aspects of the maternal‐infant interaction predicted infant adiposity, though in different directions. This indicates that the psychosocial environment, through maternal behavior, may influence infant adiposity. However, the general home environment was not consistently related to infant adiposity.
Evaluation of factors associated with the difficulty in finding receiving hospitals for traffic accident patients at the scene treated by emergency medical services: a population‐based study in Osaka City, Japan
Authors: Katayama Yusuke , Kitamura Tetsuhisa , Kiyohara Kosuke , Iwami Taku , Kawamura Takashi , Hayashida Sumito , Ogura Hiroshi , Shimazu Takeshi 
Published: June 2017

AimAlthough the prolongation of the time between injury and hospital arrival of traffic accident patients can influence their prognosis, factors associated with the difficulty in hospital acceptance of these patients have not been sufficiently evaluated in Japan.MethodsWe retrospectively analyzed the population‐based ambulance records of all traffic accident patients for whom the Osaka Municipal Fire Department (Osaka City, Japan) dispatched an ambulance in 2013. We defined “cases with difficulty in hospital acceptance” as cases that required ≥4 calls by emergency medical service personnel at the scene before receiving hospital acceptance. We included patient characteristics (age, sex, coma status, and trauma severity judged by emergency medical service personnel), time factors (day/night or weekday/holiday and weekends), and accident location for multivariable logistic regression analysis to assess factors associated with the difficulty in hospital acceptance.ResultsAmong 13,427 traffic accident patients, 2,033 (15.1%) were cases with difficulty in hospital acceptance. Pediatric patients (adjusted odds ratio [OR], 1.265; 95% confidence interval [CI], 1.060–1.509), male sex (adjusted OR, 1.260; 95% CI, 1.135–1.398), moderate‐grade trauma (adjusted OR, 2.241; 95% CI, 1.972–2.547), severe‐grade trauma (adjusted OR, 2.057; 95% CI, 1.249–3.388), holidays and weekends (adjusted OR, 1.702; 95% CI, 1.539–1.882), and night‐time (adjusted OR, 2.720; 95% CI, 2.443–3.027) were positively associated with difficulty in hospital acceptance.ConclusionsUsing population‐based ambulance records from a large urban community in Japan, we showed that the difficulty in hospital acceptance of patients at the scene of traffic accidents was positively associated with several prehospital factors.
Coupling of Magnetic and Elastic Domains in the Organic–Inorganic Layered Perovskite‐Like (C6H5C2H4NH3)2FeIICl4 Crystal
Authors: Nakayama Yuki , Nishihara Sadafumi , Inoue Katsuya , Suzuki Takashi , Kurmoo Mohamedally 
Published: June 2017

AbstractMultiferroic materials coupling ferroelasticity and ferromagnetism show strong magnetoelastic effects as magnetization is induced by mechanical stress or alternately strain induced by applying a magnetic field. These effects were reported for inorganic multiferroics such as LaCoxSr1−xO3. (C6H5C2H4NH3)2FeIICl4 is the first example of an organic–inorganic perovskite to exhibit such effects below the canted antiferromagnetism at TC=98 K and ferroelasticity at TC=433 K. This is shown by switching the magnetic hysteresis on and off by uniaxial pressure through the strong coupling of the magnetic and elastic domains. The spin‐canting direction was controlled by mechanical stress in the heating and cooling cycles. This unique observation gives additional impetus in the search for coupled hysteretic effect in organic–inorganic multiferroics.
Modification of poly(ethylene terephthalate) (PET) using linoleic acid for oxygen barrier improvement: Impact of processing methods
Authors: Angelo Miranda Michael , Jabarin Saleh A. , Coleman Maria 
Published: June 2017

ABSTRACTPoly(ethylene terephthalate) (PET) is commonly used in the packaging industry; however, there is considerable interest in reducing the rate of oxygen permeation through PET to extend product shelf life. One method being employed to improve oxygen barrier is the introduction of reactive compounds to bind the oxygen permeating through the polymer. This work investigates a naturally occurring oxygen scavenger, linoleic acid (LA), which was incorporated within blown PET bottles using two different processing schemes. The LA was incorporated within PET at 0.5% by weight using both by blending and reaction of carboxyl end of LA and hydroxyl end of PET. The effect of LA on the thermal, mechanical properties, and oxygen permeation were determined. There was a decrease in oxygen permeability for the PET/LA samples with little change in physical properties relative to base PET. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45023.
Preparation and characterization of nano‐SiO2 reinforced alginate‐based nanocomposite films (II)
Authors: Yang Manli , Xia Yanzhi 
Published: June 2017

ABSTRACTCrosslinked alginate‐based nanocomposites at different SiO2 contents were prepared successfully by blending the nano‐SiO2 solution into low concentration alginate solution (0.5 wt %), with the alginate concentration increased step by step to the resulted concentration, in this course glycerol was used as plasticizer and 5 wt % CaCl2 as crosslinker. The combined effect of SiO2 content (1.5–8 wt %) on the microstructural, physical, mechanical, and optical properties of the nanocomposite films were investigated. The results showed that tensile strength and elongation was improved by about 40.33% and 89%, respectively, upon increasing the SiO2 content to 4.5 wt %. In addition, water vapor permeability and swelling degree decreased by 19% and 16% with increasing SiO2 content up to 8 and 4.5 wt %, respectively with respect to pure crosslinked alginate film. Thermogravimetric analysis also revealed that nano‐SiO2 can improve the thermal stability of sodium alginate films produced by this method. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45286.
Improvement of glycerin removal from crude biodiesel through the application of a sulfonated polymeric adsorbent material
Authors: Alves Magno José , Cardoso Saulo Luiz , Guimarães Eloiza , Borges Neto Waldomiro , Cardoso Vicelma Luiz , Reis Miria Hespanhol Miranda 
Published: June 2017

ABSTRACTThe proposal of suitable processes for glycerin removal from crude biodiesel is an important task for making the overall biodiesel production process environmentally friendly and economically viable. In this article, we propose a dry purification process for biodiesel treatment with different polymeric materials [chitosan, cellulose acetate, poly(vinyl alcohol) (PVA), and sulfonated PVA]. Except for pure PVA, all of the proposed materials were able to reduce the free glycerin content of crude biodiesel from 0.03 wt % to values lower than 0.02 wt %. When the PVA was sulfonated, the glycerin removal increased from 12 to 82% compared that of pure PVA. The glycerin content in the biodiesel sample treated with sulfonated PVA was 0.0055 wt %. Mid‐IR spectrometric analysis showed that the sulfonation of PVA increased the band due to HOH stretching vibrations; this enabled greater hydrogen bonding between glycerol and the SO3 groups of the sulfonated adsorbent. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45330.
Solution processed low‐k dielectric core‐shell nanoparticles for additive manufacturing of microwave devices
Authors: O'Keefe Shamus , Li Yilin , Luscombe Christine K. 
Published: June 2017

ABSTRACTThis study introduces a new core‐shell structured polytetrafluoroethylene (PTFE)/polyimide (PI) nanoparticle for additive manufacturing of microwave substrates. Materials were synthesized using a solution processed method through the electrostatic interaction between PTFE with negative potential and poly(amic acid) salt (PAAS, a PI precursor) with positive potential followed by the thermal imidization of PAAS. Microscopic studies by transmission electron microscopy, scanning electron microscopy, and atomic force microscopy confirmed the formation of core‐shell nanoparticles, a porous material network, and a reduction of surface roughness upon imidization. In addition to excellent high temperature stability (<0.4% weight loss at 500 °C), the synthesized materials showed improved particle‐to‐particle adhesion and particle‐to‐substrate adhesion compared to PTFE alone, and good dielectric properties measured at 7.2 GHz utilizing a cavity perturbation technique. The materials consisting of 5% to 35% of PI exhibited low relative permittivity (ɛ′) of 2.14 to 2.38 and loss tangent (tan δ) of 0.001 to 0.0018, which make them well suited for use in additive manufacturing. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45335.
Laboratory antimicrobial activity of cinnamaldehyde and pomegranate‐based polycaprolactone films
Authors: Uzunlu Sinan , Niranjan Keshavan 
Published: June 2017

ABSTRACTPolycaprolactone (PCL) was incorporated separately with cinnamaldehyde (CNMA), pomegranate methanolic extract (PME), freeze dried arils of pomegranate (FDAP), and seed flour of pomegranate (SF) to form antimicrobial films to be used for active food packaging. PCL–CNMA films completely inactivated growth of the artificially inoculated Escherichia coli and Staphylococcus aureus, whether at 5% or 10% concentrations (wt/wt of polymer), at all studied temperatures (4, 20, and 37 °C). PCL–PME films (10% wt/wt of polymer) delayed the growth of E. coli and S. aureus for up to 7 and 6 days, respectively, at 37 °C. Two‐day delays in the growth of both bacteria were achieved with FDAP and SF films (10% wt/wt of polymer) at 20 °C. The release of CNMA was slower than the release of PME during film processing, as measured by Fourier transform infrared spectroscopy. Thus, CNMA and pomegranate‐based films perhaps should be planned further for use in controlled release food packaging. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45347.
Polyelectrolyte multilayer modified nanofiltration membranes for the recovery of ionic liquid from dilute aqueous solutions
Authors: Avram Alexandru M. , Ahmadiannamini Pejman , Vu Anh , Qian Xianghong , Sengupta Arijit , Wickramasinghe S. Ranil 
Published: June 2017

ABSTRACTThe feasibility of nanofiltration membranes fabricated by static polyelectrolyte layer‐by‐layer deposition of poly(styrene sulfonate) and poly(allylamine hydrochloride) on poly(ether sulfone) ultrafiltration and alumina microfiltration membranes for the recovery of ionic liquid from low molecular weight sugar was investigated. The surface properties of these modified membranes were correlated with their performances. The selectivity for 1‐butyl‐3‐methylimidazolium chloride over cellobiose and glucose was found to be as high as 50.5/2.3 for modified alumina and 32.3/3.5 for modified poly(ether sulfone) membranes with optimized number of bilayers. The values for membrane permeance were 4.8 and 2.5 L m−1 h2 bar−1, respectively. For low depositions, the separation mechanism was predominantly governed by size‐exclusion. For higher depositions, the enhanced negative zeta potential of the modified membranes suggested preferred dominating electrostatic interactions, resulting in high selectivity of ionic liquids over low molecular weight sugars. At very high depositions, the molecular weight cut‐off of the membrane becomes constricting for size‐exclusion effect. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45349.
Preparation and characterization of water‐soluble polymers and their utilization in chromium sorption
Authors: Sánchez Julio , Mendoza Nicole , Rivas Bernabé L. , Basáez Luis , Santiago‐García J. L. 
Published: June 2017

ABSTRACTIn this article, we study the sorption of chromium from aqueous solutions using water‐soluble polymers (WSPs): poly[2‐(acryloyloxy) ethyl] trimethylammonium chloride, P(ClAETA); poly[2‐(methacryloyloxy) ethyl] trimethylammonium methyl sulfate, P(SAETA); and poly(sodium 4‐styrenesulfonate), P(NaSS). These WSPs were obtained by radical polymerization and purified by fractionation through ultrafiltration membranes with different molar mass cut‐offs (30 and 100 kDa). The characterization was carried out by thermogravimetric analysis (TGA), FTIR, and 1H‐NMR spectroscopies and scanning electron microscopy/energy dispersive X‐ray spectroscopy. The chromium retention properties of the polymers were determined in terms of pH, optimal polymer concentration, and the effect of interfering ions. The results show yields above 80% for all of the synthesized WSPs. Characterization by spectroscopy confirmed the chemical structure of the polymers. TGA shows thermal decomposition temperatures of 264 and 324 °C for P(ClAETA) and P(SAETA), respectively. In the case of P(NaSS), the first thermal decomposition begins at approximately 450 °C. Maximum retention of Cr(VI) (100%) by the polymers P(ClAETA) and P(SAETA) was achieved at pH 9, and the maximum retention of Cr(III) (100%) was achieved by P(NaSS) at pH 3. The optimal polymer:Cr molar ratio obtained was 20:1. The retention of chromium(VI) was decreased by the presence of interfering ions, and the hydrodynamic flux was almost constant during ultrafiltration. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45355.
The effect of curing system on the properties of the thermoplastic elastomer foams of ethylene‐vinyl acetate copolymer and styrene‐butadiene and ethylene‐propylene‐diene monomer rubbers
Authors: Rahmany Naeim Abady A. , Ostad Movahed S. 
Published: June 2017

ABSTRACTThermoplastic elastomer (TPE) foams have important application in electrical, toys, and other industries. Several foams were prepared by ethylene‐vinyl acetate copolymer (EVA) lonely, and in combination with styrene‐butadiene and ethylene‐propylene‐diene monomer rubbers (SBR and EPDM). The effects of crosslinking and foaming agents and EVA type on density and mechanical properties of the cured foams with two curing systems, peroxide and sulfur‐peroxide with potential use in automotive applications, were studied. The results showed that proposed compounds formulations were foamed properly. The viscosity of the EVA was a key factor for the density values of the formed foams. The densities of the cured foams with peroxide system with various SBR contents were higher when compared with cured foams with sulfur‐peroxide system. With increasing foaming agent, the densities of the foams were reduced for studied curing systems. The densities of the EVA–EPDM foams were lower than those of the EVA–SBR foams in the same studied conditions. Increasing rubber in foam formulation had adverse effect on tensile properties of the foams. The existence of the talc powder in foam formulation had important role on the shape and type of the formed cells and resulted in foams with mostly closed cells. The results of this study help the automotive article designer to produce suitable TPE foam. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45357.
A DMA study of the interfacial changes on injection‐molded iPP/mica composites modified by a p‐phenylen‐bis‐maleamic acid grafted atactic polypropylene
Authors: García‐Martínez Jesús‐María , Taranco Jesús , Collar Emilia P. 
Published: June 2017

ABSTRACTPresent work concerns to the study of the dynamic mechanical and thermal responses of selected polypropylene (iPP)/mica composites with a modified interface from the matrix side by using a p‐phenylen‐bis‐maleamic acid grafted atactic polypropylene, coming from a byproduct of industrial polymerization reactors. Thus, the study is mainly focused on the 75/25 iPP/mica ratio since it was identified in previous works as providing the maximum inter mica particle distance to assure they should participate in the overall process of dissipation of the mechanical energy supplied to the composites. Hence, the present dynamic mechanical analysis discussion tries to correlate the damping responses of the injection‐molded composites with those previously obtained but over compression molded composites as the basis of further studies all along the compositional iPP/mica map. Therefore, the latter let us, on the one hand, to follow how the main values of the different dynamic mechanical analysis parameters vary because of the interfacial modifier presence, and on the other, to develop a robust correlation between them and the corresponding macroscopic mechanical parameters. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45366.
Muscular Basis of Whisker Torsion in Mice and Rats
Authors: Haidarliu Sebastian , Bagdasarian Knarik , Shinde Namrata , Ahissar Ehud 
Published: June 2017

ABSTRACTWhisking mammals move their whiskers in the rostrocaudal and dorsoventral directions with simultaneous rolling about their long axes (torsion). Whereas muscular control of the first two types of whisker movement was already established, the anatomic muscular substrate of the whisker torsion remains unclear. Specifically, it was not clear whether torsion is induced by asymmetrical operation of known muscles or by other largely unknown muscles. Here, we report that mystacial pads of newborn and adult rats and mice contain oblique intrinsic muscles (OMs) that connect diagonally adjacent vibrissa follicles. Each of the OMs is supplied by a cluster of motor end plates. In rows A and B, OMs connect the ventral part of the rostral follicle with the dorsal part of the caudal follicle. In rows C–E, in contrast, OMs connect the dorsal part of the rostral follicle to the ventral part of the caudal follicle. This inverse architecture is consistent with previous behavioral observations [Knutsen et al.: Neuron 59 (2008) 35–42]. In newborn mice, torsion occurred in irregular single twitches. In adult anesthetized rats, microelectrode mediated electrical stimulation of an individual OM that is coupled with two adjacent whiskers was sufficient to induce a unidirectional torsion of both whiskers. Torsional movement was associated with protracting movement, indicating that in the vibrissal system, like in the ocular system, torsional movement is mechanically coupled to horizontal and vertical movements. This study shows that torsional whisker rotation is mediated by specific OMs whose morphology and attachment sites determine rotation direction and mechanical coupling, and motor innervation determines rotation dynamics. Anat Rec, 300:1643–1653, 2017. © 2017 Wiley Periodicals, Inc.
Plasmablasts With a Mucosal Phenotype Contribute to Plasmacytosis in Systemic Lupus Erythematosus
Authors: Mei Henrik E. , Hahne Stefanie , Redlin Andreas , Hoyer Bimba F. , Wu Kaiyin , Baganz Lisa , Lisney Anna R. , Alexander Tobias , Rudolph Birgit , Dörner Thomas 
Published: June 2017

ObjectiveTo analyze the composition of known plasmacytosis in systemic lupus erythematosus (SLE) to obtain further insight into the nature of underlying mechanisms.MethodsPlasmablasts from patients with active SLE, patients with inactive/treated SLE, and healthy controls were characterized by flow cytometry, enzyme‐linked immunospot assay, and Transwell migration assays and compared to vaccination‐induced plasmablasts. Serum cytokine levels were analyzed by Luminex assay, and histologic analysis of kidney biopsy specimens was performed.ResultsCirculating plasmablasts in SLE expressed markers of mucosal immune reactions. IgA, CCR10, and β7 integrin were expressed by 48%, 40%, and 38% of plasmablasts, respectively, with varying coexpression patterns. Consistent with mucosal homing, some SLE plasmablasts migrated toward the mucosal chemokine CCL28 and secreted polymeric IgA. SLE plasmablasts shared phenotypic characteristics with antigen‐specific plasmablasts induced by oral, but not parenteral, vaccinations. Autoreactive antibody–secreting cells of the IgG and IgA isotypes were detectable, but only the emergence of phenotypically mucosal plasmablasts was positively associated with serum interleukin‐2 and platelet‐derived growth factor BB levels.ConclusionOur data suggest that distinct plasmablast differentiation pathways jointly contribute to peripheral plasmacytosis in SLE, i.e., a cytokine‐amplified mucosal “steady‐state” plasmablast response, and an autoreactive plasmablast response, representing conventional autoimmunity. Our results indicate an overly activated mucosal immune system in patients with SLE, with both immunologic and clinical implications.