bluuebunny/crossref_metadata_2025_split huggingface dataset:
Controllable layer‐by‐layer assembly based on brucite and alginates with the assistance of spray drying and flame retardancy influenced by gradients of alginates
Authors: Wang Jingyu , Li Zhipeng , Wang Yiliang , Li Qimin , Chen Lamei , Shi Hui , Hao Jianwei 
Published: January 2019

ABSTRACTWith the aim of tailoring and controlling surface assembly, multifunctional flame retardants (FRs) were obtained based on depositing alginates and silane coupling agents on brucite via the spray‐drying‐assisted layer‐by‐layer assembly technique. The assembly was controllable in both structure and gradient mass. Two series of FRs were named CuFR1‐3 and NiFR1‐3 based on the assembly content of metal alginates. With the assistance of spray drying, good compatibility between FRs and ethylene‐vinyl acetate (EVA) was obtained, resulting in better mechanical properties. Meanwhile, the FRs improved flame retardancy and smoke suppression when used in EVA composites. With 55 wt % loading, composites with CuFR3 and NiFR1 passed UL 94 V‐0 rating, while those with brucite were not rated. The peak of heat release rate decreased by 51.7 and 49.3% while the residue increased by 9.8 and 11.9%, respectively. The FRs also reduced the smoke and CO production rates. For the two series of FRs, the relationship between FR efficiency and alginate contents is different. The CuFRs assembled more copper alginates and exerted better flame retardancy caused by lower catalytic graphitization. NiFRs exerted a higher catalyzing efficiency at low assembly content. However, at high assembly content, the catalytic graphitization effect would decrease by thermally oxidized degradation leading to excess nickel alginates. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2020,137, 47570.
Interfacial Engineering of Reduced Graphene Oxide for Aramid Nanofiber‐Enabled Structural Supercapacitors
Authors: Flouda Paraskevi , Feng Xueyan , Boyd James G. , Thomas Edwin L. , Lagoudas Dimitris C. , Lutkenhaus Jodie L. 
Published: January 2019

AbstractStructural energy storage systems can simultaneously store energy and bear mechanical loads and are emerging technologies for electric vehicles, aircrafts, and satellites since they offer significant mass and volume savings. However, many of the materials used in energy storage applications are not mechanically robust or, on the other hand, mechanically stiff materials are not necessarily electrochemically active. One solution is to combine reduced graphene oxide (rGO) sheets and aramid nanofibers (ANFs). Here we hypothesize that engineering the interfacial interactions between rGO sheets and the ANFs will lead to enhanced mechanical properties, as noncovalent interactions offer multiple sites for load transfer. rGO sheets are functionalized with carboxylic acid (−COOH) and amine (−NH2) groups, and the effect on the mechanical and electrochemical performance of nanocomposite supercapacitor electrodes is investigated. Notably, the −NH2 functionalization and the addition of ANFs leads to a dramatic 200 % improvement of the strength of the electrodes without significantly compromising the electrochemical performance. Furthermore, it is demonstrated that these electrodes’ multifunctionality is superior to other state‐of‐the‐art structural electrodes and may pose possible replacements for steel or epoxy. These findings provide critical knowledge for the design of next‐generation multifunctional electrodes in that we highlight the importance of interfacial engineering.
Structural, photoluminescence and dielectric investigations of phosphatic shale
Authors: Pandit Pragya , Kumar Shailendra , Mohapatra Manoj , Bangotra Pargin , Mehra Rohit , Singh A.K. 
Published: January 2019

AbstractIn the current study, the structural and spectroscopic properties of phosphatic shale samples obtained from the Atomic Minerals Directorate for Exploration and Research were probed for potential use as a phosphor material. X‐ray diffraction and Raman and Fourier transform infrared spectroscopy revealed that the beneficiated phosphatic shale samples were primarily monophasic consisting of fluorapatite [Ca5(PO4)3F, (FAP)] with minor traces of haematite (α‐Fe2O3) and calcite (CaCO3). Energy dispersive X‐ray fluorescence revealed the presence of U, Eu, Dy and Tb in the FAP matrix substituted at Ca(I) and Ca(II) sites of FAP. A reduced optical direct band gap of 4.46 eV was calculated from the Tauc plot. Photoluminescence spectral studies revealed multicolour emissions (red, yellow, green and blue) on ultraviolet light excitation that were attributed to luminescence spectra from rare earth ions Eu3+, Tb3+, U4+ and U6+ in the FAP matrix. The overall emissions for the rare earth and actinide‐doped FAP were obtained in the cool white region and the corresponding Commission Internationale de l’Eclairage chromaticity coordinates were calculated to be (0.274, 0.317). The corresponding colour correlated temperature obtained was 9342 K. Furthermore, phosphatic shale had a high room temperature dielectric constant of 11 at a frequency of 1 kHz that demonstrated its suitability for use in biological sensors. The study showed that natural phosphatic shale could be a potential material for optical, biological and dielectric applications.
Metagenomic analysis of DNA viruses from posttransplant lymphoproliferative disorders
Authors: Dharnidharka Vikas R. , Ruzinova Marianna B. , Chen Chun‐Cheng , Parameswaran Priyanka , O'Gorman Harry , Goss Charles W. , Gu Hongjie , Storch Gregory A. , Wylie Kristine 
Published: January 2019

AbstractPosttransplant lymphoproliferative disorders (PTLDs), 50%‐80% of which are strongly associated with Epstein‐Barr virus (EBV), carry a high morbidity and mortality. Most clinical/epidemiological/tumor characteristics do not consistently associate with worse patient survival, so our aim was to identify if other viral genomic characteristics associated better with survival. We extracted DNA from stored paraffin‐embedded PTLD tissues at our center, identified viral sequences by metagenomic shotgun sequencing (MSS), and analyzed the data in relation to clinical outcomes. Our study population comprised 69 PTLD tissue samples collected between 1991 and 2015 from 60 subjects. Nucleotide sequences from at least one virus were detected by MSS in 86% (59/69) of the tissues (EBV in 61%, anelloviruses 52%, gammapapillomaviruses 14%, CMV 7%, and HSV in 3%). No viruses were present in higher proportion in EBV‐negative PTLD (compared to EBV‐positive PTLD). In univariable analysis, death within 5 years of PTLD diagnosis was associated with anellovirus (P = 0.037) and gammapapillomavirus (P = 0.036) detection by MSS, higher tissue qPCR levels of the predominant human anellovirus species torque teno virus (TTV; P = 0.016), T cell type PTLD, liver, brain or bone marrow location. In multivariable analyses, T cell PTLD (P = 0.006) and TTV PCR level (P = 0.012) remained significant. In EBV‐positive PTLD, EBNA‐LP, EBNA1 and EBNA3C had significantly higher levels of nonsynonymous gene variants compared to the other EBV genes. Multiple viruses are detectable in PTLD tissues by MSS. Anellovirus positivity, not EBV positivity,was associated with worse patient survival in our series. Confirmation and extension of this work in larger multicenter studies is desirable.
Emergency health service contact and reincarceration after release from prison: A prospective cohort study
Authors: de Andrade Dominique F. , Spittal Matthew J. , Snow Kathryn J. , Taxman Faye S. , Crilly Julia L. , Kinner Stuart A. 
Published: January 2019

AbstractBackgroundAdults released from prison often have complex health needs. They are at high risk of poor health outcomes and reincarceration, with health service use unlikely to be planned.Aims/hypothesesTo determine the incidence of emergency health service (EHS) use, ambulance attendance and/or emergency department presentation, among 1,181 adults released from Australian prisons. We hypothesised that EHS contact would be associated with increased reincarceration risk.MethodsBaseline surveys were conducted within 6 weeks before release. Postrelease EHS contacts and reincarceration were identified through prospective data linkage. For each participant, EHS contacts within a 24‐hour period were combined to make an episode. We used Cox proportional hazards regression to examine the relationship between EHS episodes and reincarceration, controlling for covariates.ResultsMore than half (53.3%) of participants had at least one EHS contact over a median of 25.6‐month follow‐up. In adjusted analyses, compared to those with no EHS contacts, the hazard of reincarceration was greater for participants who had one to three EHS episodes (hazard ratio [HR] = 1.84; 95% confidence interval [CI] [1.48, 2.29]) or four or more (HR = 2.35; 95% CI [1.67, 3.29]).Conclusions/implications for practiceEmergency department attendance by people with a history of imprisonment may be indicative of wider decompensation. Improved management of such patients may improve health outcomes and have collateral benefits for reducing reincarceration.
A rare presentation of benign acute childhood myositis
Authors: Chu Eric Chun‐Pu , Yip Andrew Siu‐Leung 
Published: January 2019

Key Clinical MessageBenign acute childhood myositis is a self‐limiting muscle disorder characterized by calf pain with an isolated finding of elevated serum creatine kinase, being preceded by an influenza‐like illness. The classic clinical and laboratory features may allow for a correct diagnosis. This report describes some accompanying symptoms which are not usually perceived. An incorrect diagnosis could lead to unnecessary treatments.
Diffuse large B‐cell lymphoma presenting with masses in the pineal and adrenal glands
Authors: Bilgin Cem , Korkmaz Baris , Soylu Esra , Ozturk Hulya , Ozturk Kerem 
Published: January 2019

Key Clinical MessageMagnetic resonance imaging (MRI) may offer several potential advantages in the evaluation of lymphoma with the additive value of H1‐MRS for differential diagnosis. Even though lymphoma has unique imaging findings on CT and multiparametric MRI, definite diagnosis must be thoroughly established by histopathological examination.
Growth differentiation factor‐15 and the risk of cardiovascular diseases and all‐cause mortality: A meta‐analysis of prospective studies
Authors: Xie Shanhui , Lu Liping , Liu Liwei 
Published: January 2019

Background and AimPrevious studies have documented that the association between growth differentiation factor‐15 (GDF‐15) the risk of patients with cardiovascular diseases (CVDs). In this meta‐analysis, our main objective is to explore the associations between GDF‐15 and the risk of CVD or all‐cause mortality.MethodsPubMed and ISI Web of Science (up to January 2018) electronic databases were browsed for eligible studies. The studies provided relevant data depicted as hazard ratio (HR) with 95% confidence interval (CI), with regard to the association between GDF‐15 levels and subsequent risk of CVDs or all‐cause mortality. A random‐effect model was applied to pool the HR and 95% CI.ResultsThirty‐one prospective studies met the eligibility criteria involving 53 706 subjects with 7020 adverse outcome events. It was concluded that GDF‐15 levels were associated with an incremental risk of CVDs or all‐cause mortality. Highest GDF‐15 category was associated with greater risk of cardiovascular mortality (HR, 2.66; 95% CI, 1.69‐3.63), all‐cause mortality (HR, 2.52; 95% CI, 2.06‐2.97), and complex adverse outcome (HR, 1.81; 95% CI, 1.42‐2.21). As each log‐unit increment in GDF‐15 concentration, the corresponding risk of adverse events also escalated, cardiovascular mortality (HR, 2.11; 95% CI, 1.57‐2.66), all‐cause mortality (HR, 2.70; 95% CI, 2.29‐3.12), and complex adverse outcome (HR, 1.96; 95% CI, 1.64‐2.29).ConclusionsJudging from the results of the data analysis, GDF‐15 levels may increase the risk of CVDs or all‐cause mortality.
Cardiovascular events and death after myocardial infarction or ischemic stroke in an older Medicare population
Authors: Li Suying , Peng Yi , Wang Xinyue , Qian Yi , Xiang Pin , Wade Sally W. , Guo Haifeng , Lopez J. Antonio G. , Herzog Charles A. , Handelsman Yehuda 
Published: January 2019

BackgroundSurvivors of myocardial infarction (MI) or ischemic stroke (IS) are at high risk for subsequent cardiovascular events.HypothesisOlder patients with prior MI or IS are at risk for recurrent cardiovascular events, and comorbidities such as diabetes may increase this risk.MethodsTwo cohorts were studied in a retrospective Medicare 20% random sample—a 2008 cohort with up to 6 years of follow‐up (MI, N = 26 460; IS, N = 17 566) and a 2012 cohort with 1 year of follow‐up (MI, N = 26 548; IS, N = 17 728).ResultsIn older patients who survived an event of MI or IS (2012 cohort), 7.2% had a recurrent MI and 6.7% had a recurrent IS in the first year; 32% died. Accounting for multiple recurrent events (2012 cohort), the event rates per 100 patient‐years were 11.6 and 10.2 for the MI and IS cohorts, respectively. Cumulative incidence of recurrence (2008 cohort) increased from 7.7% at 1 year to 14.3% at 6 years for recurrent MI and from 6.7% at 1 year to 13.4% at 6 years for recurrent IS. Comorbid diabetes (2012 cohort) was significantly associated (adjusted risk ratio) with MI recurrence (1.44) and risk of coronary revascularization (1.23) in the MI cohort and with IS recurrence (1.26) in the IS cohort.ConclusionIn this older population with prior MI or IS, high rates of recurrent cardiovascular events and multiple recurrent events were observed. These findings highlight the need for aggressive intervention for secondary prevention and management of comorbidities in high‐risk patients, particularly those with diabetes.
Use of the ERD for administrative monitoring of Theta
Authors: Kristiansen Alex 
Published: January 2019

SummaryMonitoring the state of an HPC cluster in a timely and accurate fashion is critical to most system administration functions. For many Cray users, the first step in monitoring is ingestion of log files. Unfortunately, log parsing is an inherently inefficient process, requiring multiple software components to read and write from files on disk. Cray's own utilities use a message bus, the Event Router Daemon (ERD), for a wide variety of purposes. At the Argonne Leadership Computing Facility (ALCF), we have begun to use this message bus for monitoring via a client library written in Go, allowing us to read in structured data directly from Cray's services and, in many instances, bypass log files entirely. In this paper, we will examine the implementation and utilization of this approach on our 4392 node XC40, Theta, as well as the overall benefits and drawbacks to using the ERD for real‐time monitoring.
Infrared Spectra of Deprotonated Dicarboxylic Acids: IRMPD Spectroscopy and Empirical Valence‐Bond Modeling
Authors: Thaunay Florian , Calvo Florent , Nicol Edith , Ohanessian Gilles , Clavaguéra Carine 
Published: January 2019

AbstractExperimental infrared multiple‐photon dissociation (IRMPD) spectra recorded for a series of deprotonated dicarboxylic acids, HO2(CH2)n
(n=2–4), are interpreted using a variety of computational methods. The broad bands centered near 1600 cm−1 can be reproduced neither by static vibrational calculations based on quantum chemistry nor by a dynamical description of individual structures using the many‐body polarizable AMOEBA force field, strongly suggesting that these molecules experience dynamical proton sharing between the two carboxylic ends. To confirm this assumption, AMOEBA was combined with a two‐state empirical valence‐bond (EVB) model to allow for proton transfer in classical molecular dynamics simulations. Upon suitable parametrization based on ab initio reference data, the EVB‐AMOEBA model satisfactorily reproduces the experimental infrared spectra, and the finite temperature dynamics reveals a significant amount of proton sharing in such systems.
Network level perspective in web sessions troubleshooting
Authors: Milanesio Marco , Callegari Christian , Michiardi Pietro 
Published: January 2019

SummaryIn the last years, the quantity of data and the number of applications carried over web traffic have been continuously increasing and nowadays web browsing accounts for most of the Internet traffic. In such a scenario, a poor browsing experience can result very annoying to the end user, and the effective identification of the root cause of such bad performance is of primary interest to both the users and the network operators.In this paper, we present a unified framework, based on a novel lightweight open‐source publicly available probe and on an original statistical diagnosis algorithm, to correctly and effectively point out the segment of a web connection (eg, local client, backbone network, and DNS server) responsible for a poor web browsing experience. The extensive experimental evaluation carried out in the paper demonstrates the effectiveness of the proposed approach to diagnose poor quality of experience at a large scale.
A putative antimicrobial peptide from Hymenoptera in the megaplasmid pSCL4 of Streptomyces clavuligerus ATCC 27064 reveals a singular case of horizontal gene transfer with potential applications
Authors: Ayala‐Ruano Sebastián , Santander‐Gordón Daniela , Tejera Eduardo , Perez‐Castillo Yunierkis , Armijos-Jaramillo Vinicio 
Published: January 2019

AbstractStreptomyces clavuligerus is a Gram‐positive bacterium that is a high producer of secondary metabolites with industrial applications. The production of antibiotics such as clavulanic acid or cephamycin has been extensively studied in this species; nevertheless, other aspects, such as evolution or ecology, have received less attention. Furthermore, genes that arise from ancient events of lateral transfer have been demonstrated to be implicated in important functions of host species. This approximation discovered relevant genes that genomic analyses overlooked. Thus, we studied the impact of horizontal gene transfer in the S. clavuligerus genome. To perform this task, we applied whole‐genome analysis to identify a laterally transferred sequence from different domains. The most relevant result was a putative antimicrobial peptide (AMP) with a clear origin in the Hymenoptera order of insects. Next, we determined that two copies of these genes were present in the megaplasmid pSCL4 but absent in the S. clavuligerus ATCC 27064 chromosome. Additionally, we found that these sequences were exclusive to the ATCC 27064 strain (and so were not present in any other bacteria) and we also verified the expression of the genes using RNAseq data. Next, we used several AMP predictors to validate the original annotation extracted from Hymenoptera sequences and explored the possibility that these proteins had post‐translational modifications using peptidase cleavage prediction. We suggest that Hymenoptera AMP‐like proteins of S. clavuligerus ATCC 27064 may be useful for both species adaptation and as an antimicrobial molecule with industrial applications.
Development of full color LED display with color sensor function
Authors: Hasegawa Tatsuo , Maeda Tomoya 
Published: January 2019

AbstractWe developed full color LED display with color sensor function by using LED to an optical sensor. This display has a new function that you can draw pictures and letters by an irradiating light. The drawn color is selected in three patterns by a color of the light irradiation. If red light is irradiated, red LED in the display turns on; if blue light is irradiated, green LED turns on; and if UV light is irradiated, blue LED turns on. In this paper, a measurement method and its results of wavelength sensitivity characteristics for a full color dot matrix LED, an operation principle and a structure of the circuit in the display are discussed.
IR absorption spectroscopy of deposition process of amorphous carbon film due to ethylene plasma
Authors: Shinohara Masanori , Tominaga Taisuke , Shimomura Hayato , Ihara Takeshi , Yagyu Yoshihito , Ohshima Tamiko , Kawasaki Hiroharu 
Published: January 2019

AbstractChanges in chemical states of amorphous carbon film during ethylene (C2H4) plasma in the floating potential were investigated with multiple‐internal‐reflection infrared absorption spectroscopy (MIR‐IRAS) and deposition rates. IRAS spectra showed that the peaks due to the sp3‐CHX were observed, but no peaks due to sp2‐CHX were observed. The deposition rate due to ethylene plasma was nearly twice that due to methane plasma, in the same way that the number of carbons in an ethylene molecule is twice as that in a methane molecule. It is suggested that the film growth due to ethylene plasma is the same manner of that due to methane plasma; the plasma‐generated hydrocarbon species such as C2H3 and C2H5, which are generated in ethylene plasma, are adsorbed on dangling bonds that are generated by hydrogen abstraction from the deposited film surface. As a result, the deposited film is composed of sp3‐hydrocarbon components.
Agrochemical Mixtures and Amphibians: The Combined Effects of Pesticides and Fertilizer on Stress, Acetylcholinesterase Activity, and Bioaccumulation in a Terrestrial Environment
Authors: Van Meter Robin J. , Adelizzi Rose , Glinski Donna A. , Henderson W. Matthew 
Published: January 2019

Abstract

Tank mixtures are popular within the agricultural community because they are time- and cost-effective, but field applications leave nontarget organisms at risk of exposure. We explored the effects of a common herbicide (atrazine and alachlor) and fertilizer (urea) tank mixture on juvenile frog corticosterone stress levels, acetylcholinesterase (AChE) activity, and pesticide bioaccumulation. Single agrochemical or tank mixtures were applied to terrestrial microcosms, and then individual Southern leopard frog (Lithobates sphenocephala) juveniles were added to microcosms for an 8-h exposure. Afterward, frogs were transferred to aquatic microcosms for 1 h to monitor corticosterone prior to euthanasia, brain tissues were excised to evaluate AChE, and tissue homogenates were analyzed for pesticide bioconcentation with gas chromatography–mass spectrometry. Atrazine significantly increased corticosterone in frogs, particularly when combined with alachlor and urea. Atrazine increased AChE and urea decreased AChE, although no interactive effects of chemical combinations were discernible. Relative to their individual treatments, the complete tank mixture with all 3 agrochemicals resulted in 64% greater bioconcentration of atrazine and 54% greater bioconcentration of alachlor in frog tissues. Our results suggest that agrochemical mixtures as well as their active ingredients can lead to altered stress levels and impaired physiological responses in amphibians. An improved understanding of the effects of co-exposure to environmental contaminants in amphibians is important in assessing the ecological risks these compounds pose. Environ Toxicol Chem 2019;9999:1–10. © 2019 SETAC
Abstract
Acetylcholinesterase activity and corticosterone stress response in Lithobates sphenocephala after exposure to mixtures of atrazine (Z), alachlor (L), and urea (N).