bluuebunny/crossref_metadata_2025_split huggingface dataset:
System Change Detection Method Using Recurrent Neural Networks
Authors: HAYASHIDA TOMOHIRO , YAMAMOTO TORU , KINOSHITA TAKUYA , NISHIZAKI ICHIRO , SEKIZAKI SHINYA , HIRATSUKA NAOTO 
Published: November 2017

SUMMARYA single or multiple kinds of internal or external environmental variations of the system often cause the property variation of any system under control, and the readjustment of controller parameters is required. To maintain high performance of controlling and minimize the total cost for readjustments of the controller parameters, determination of the appropriate timing for readjustment of the controller parameters is important. This paper proposes new procedure to determine the appropriate timing for the readjustments based on the time‐series data using the recurrent neural networks (RNNs). A well‐coordinated RNN with proper structure has high performance on the time‐series data forecasting with the assistance of its internal signal feedback structure. This paper conducts some numerical experiments to verify the availability of the proposed method to some systems. The experimental result indicates that the proposed method has higher performance than other existing method with the same aim.
Occurrence and distribution of organophosphorus flame retardants/plasticizers and synthetic musks in sediments from source water in the Pearl River Delta, China
Authors: Zeng Xiangying , Xu Liang , Liu Jing , Wu Yang , Yu Zhiqiang 
Published: November 2017

Abstract

The Pearl River (China) and its tributaries receive discharges of treated/untreated domestic sewage and industrial wastewater throughout the entire drainage basin. The river provides source water for many local inhabitants, and there is great concern over its pollution status. Fifteen sediment samples were collected from source water areas in the Pearl River Delta, and analyzed for the occurrence and distribution of 2 classes of emerging pollutants, organophosphorus flame retardants (OPs) and synthetic musks. In most sediments, 5 polycyclic musks and 2 nitro musks were detected, and galaxolide (1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta (g)-2-benzopyran [HHCB]) and tonalide (7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene [AHTN]) were the predominant components, with concentrations of 0.030 to 547 and 4.31 to 439 ng/g, respectively. Seven widely used OPs were found in most sediments, at varying total concentrations from 1.79 to 143 ng/g, with tris(2-butoxyethyl) phosphate (TBEOP), tris(2-chloro-isopropyl) phosphate (TCIPP), and triphenyl phosphate (TPHP) being the main components. The results indicated that industrial discharge and domestic sewage played important roles for synthetic musk and OP distribution in sediments in the study area. In general, higher levels of OPs and synthetic musks were found in Guangzhou, Foshan, and Dongguan, suggesting a significant impact from industrial discharges and the dense population of these regions. Environ Toxicol Chem 2018;37:975–982. © 2017 SETAC
Superior colliculus resting state networks in post‐traumatic stress disorder and its dissociative subtype
Authors: Olivé Isadora , Densmore Maria , Harricharan Sherain , Théberge Jean , McKinnon Margaret C. , Lanius Ruth 
Published: November 2017

AbstractObjectivesThe innate alarm system (IAS) models the neurocircuitry involved in threat processing in posttraumatic stress disorder (PTSD). Here, we investigate a primary subcortical structure of the IAS model, the superior colliculus (SC), where the SC is thought to contribute to the mechanisms underlying threat‐detection in PTSD. Critically, the functional connectivity between the SC and other nodes of the IAS remains unexplored.Experimental designWe conducted a resting‐state fMRI study to investigate the functional architecture of the IAS, focusing on connectivity of the SC in PTSD (n = 67), its dissociative subtype (n = 41), and healthy controls (n = 50) using region‐of‐interest seed‐based analysis.Principal observationsWe observed group‐specific resting state functional connectivity between the SC for both PTSD and its dissociative subtype, indicative of dedicated IAS collicular pathways in each group of patients. When comparing PTSD to its dissociative subtype, we observed increased resting state functional connectivity between the left SC and the right dorsolateral prefrontal cortex (DLPFC) in PTSD. The DLPFC is involved in modulation of emotional processes associated with active defensive responses characterising PTSD. Moreover, when comparing PTSD to its dissociative subtype, increased resting state functional connectivity was observed between the right SC and the right temporoparietal junction in the dissociative subtype. The temporoparietal junction is involved in depersonalization responses associated with passive defensive responses typical of the dissociative subtype.ConclusionsOur findings suggest that unique resting state functional connectivity of the SC parallels the unique symptom profile and defensive responses observed in PTSD and its dissociative subtype. Hum Brain Mapp 39:563–574, 2018. © 2017 Wiley Periodicals, Inc.
Brain networks of the imaginative mind: Dynamic functional connectivity of default and cognitive control networks relates to openness to experience
Authors: Beaty Roger E. , Chen Qunlin , Christensen Alexander P. , Qiu Jiang , Silvia Paul J. , Schacter Daniel L. 
Published: November 2017

AbstractImagination and creative cognition are often associated with the brain's default network (DN). Recent evidence has also linked cognitive control systems to performance on tasks involving imagination and creativity, with a growing number of studies reporting functional interactions between cognitive control and DN regions. We sought to extend the emerging literature on brain dynamics supporting imagination by examining individual differences in large‐scale network connectivity in relation to Openness to Experience, a personality trait typified by imagination and creativity. To this end, we obtained personality and resting‐state fMRI data from two large samples of participants recruited from the United States and China, and we examined contributions of Openness to temporal shifts in default and cognitive control network interactions using multivariate structural equation modeling and dynamic functional network connectivity analysis. In Study 1, we found that Openness was related to the proportion of scan time (i.e., “dwell time”) that participants spent in a brain state characterized by positive correlations among the default, executive, salience, and dorsal attention networks. Study 2 replicated and extended the effect of Openness on dwell time in a correlated brain state comparable to the state found in Study 1, and further demonstrated the robustness of this effect in latent variable models including fluid intelligence and other major personality factors. The findings suggest that Openness to Experience is associated with increased functional connectivity between default and cognitive control systems, a connectivity profile that may account for the enhanced imaginative and creative abilities of people high in Openness to Experience.
Neutropenic fever during peripheral blood progenitor cell mobilization is associated with decreased CD34+ cell collection and increased apheresis collection days
Authors: Khouri Jack , Rybicki Lisa , Majhail Navneet , Kalaycio Matt , Copelan Edward , Pohlman Brad , Hill Brian , Dean Robert , Lazaryan Aleksandr , Hamilton Betty , Andresen Steven , Sobecks Ronald , Bolwell Brian , Liu Hien 
Published: November 2017

AbstractBackgroundPeripheral blood progenitor cell (PBPC) mobilization with chemotherapy in addition to Granulocyte‐Colony Stimulating Factor (G‐CSF) improves cell collection compared to G‐CSF alone; however, it is associated with increased risk of neutropenic fever (NF).MethodsWe analyzed risk factors for post‐priming NF and NF association with autologous stem cell transplant outcomes. Between 1998 and 2008, 593 adult patients with lymphoma underwent PBPC mobilization with etoposide and G‐CSF.ResultsMedian age was 51 years (range 18–77) and 372 (63%) were male. Diagnoses were 457 (77%) non‐Hodgkin lymphoma and 136 (23%) Hodgkin lymphoma. Of 554 (93%) transplanted patients, majority were in complete or partial remission at time of transplant (88%). Overall, 141 (24%) patients were hospitalized for NF. Nine patients (6%) had bacteremia, 4 (3%) had pneumonia, 2 (<1%) had herpes simplex viral infections, and the remaining 126 (90%) had no identified infection source. NF patients had lower likelihood of proceeding to transplant (86% vs. 96%, P < .001), lower CD34+ cell dose collection (median 7.23 × 106 CD34+ cells/kg vs. 8.98 × 106 CD34+ cells/kg, P = .002), and were more likely to require > 4 days of apheresis (48% vs. 37%, P < .001). NF was associated with a higher 30‐day readmission rate following transplant hospitalization (17% vs. 9%, P = .012).ConclusionNF during etoposide priming is associated with lower likelihood of proceeding to transplant, lower CD34+ cell dose collection, more apheresis days required for collection and a higher 30‐day readmission rate following transplant discharge.
Promising abilities of mercapto‐degrading Staphylococcus capitis strain SH6 in both crude oil and waste motor oil as sole carbon and energy sources: its biosurfactant production and preliminary characterization
Authors: Chebbi Alif , Hentati Dorra , Cheffi Meriam , Bouabdallah Rihab , Choura Cyrine , Sayadi Sami , Chamkha Mohamed 
Published: November 2017

AbstractBACKGROUNDIt was shown previously that a Staphylococcus capitis strain SH6 was able to degrade several malodorous mercaptans and simultaneously reduce the surface tension.RESULTSThis present work revealed the capacity of strain SH6 to grow on various hydrocarbons, used as the only carbon and energy sources. Based on GC–MS analyses, the substantial ability to degrade up to 45% and 64% of aliphatic hydrocarbons (n‐alkanes) of crude oil and waste motor oil, respectively, after 30 days of incubation at 37 °C and 180 rpm, was shown. The properties of biosurfactant produced by strain SH6 grown on different oil substrates (diesel oil and waste motor oil) were studied. Biosurfactants exhibited enhanced emulsification capacities and significant stabilities over a wide range of salinity (20–150 g L‐1), temperature (–20–100 °C), and pH , and also the ability to remove crude oil from contaminated soils. Their critical micelle concentrations (CMC) were of 800 mg L‐1. FTIR analyses suggested the lipopetide nature of biosurfactants.CONCLUSIONThe stabilities of biosurfactants over a wide pH range, high temperatures and variable concentrations of salt, as well as emulsifying properties, suggest potential applications in bioremediation processes. © 2017 Society of Chemical Industry
Electrochemical recovery of copper complexed by DTPA and C12‐DTPA from aqueous solution using a membrane cell
Authors: Eivazihollagh Alireza , Bäckström Joakim , Norgren Magnus , Edlund Håkan 
Published: November 2017

AbstractBACKGROUNDThe electrochemical recovery of copper from diethylenetriaminepentaacetic acid (DTPA) and C12–DTPA (a surface‐active derivative of DTPA) complex solutions was investigated in a membrane flow cell. Electrolysis time, solution flow rate, applied current density, and solution pH were evaluated.RESULTSThe chelating surfactant C12‐DTPA can promote the kinetics of copper electrodeposition more than DTPA depending on the experimental conditions. At a current density of 30 A m–2, a solution flow rate of 0.6 L min–1, and pH 10 after 180 min treatment, the copper recovery and current efficiency were 50% and 43.3%, respectively, in the Cu(II)‐DTPA system and about 65% and 53.6%, respectively, in the Cu(II)‐C12‐DTPA system. The differences in the amount of recovery could be explained in terms of differences in the diffusion of copper complexes with DTPA and C12‐DTPA to the cathode, as well as their solution behavior and pH‐dependent conditional stability constants (log10 K'CuDTPA3‐).CONCLUSIONElectrochemical methods could be effectively combined with foam flotation for the chelating surfactant C12‐DTPA, to recover copper and C12‐DTPA. This makes the overall treatment more sustainable, and can be helpful in complying with the increasingly stringent environmental regulations. © 2017 Society of Chemical Industry
Sulfonated poly(arylene ether nitrile)/polypyrrole core/shell nanofibrous mat: an efficient absorbent for the removal of hexavalent chromium from aqueous solution
Authors: Zhan Yingqing , Wan Xinyi , He Shuangjiang , He Yi 
Published: November 2017

AbstractBACKGROUNDSulfonated poly(arylene ether nitrile)/polypyrrole core/shell nanofibrous mats were prepared by an electrospinning technique, followed by in situ polymerization of pyrrole monomer. Their removal of hexavalent chromium (Cr (VI)) from aqueous solution was systematically investigated. The structure and composition of core/shell PEN/PPy nanofibrous mats were examined and confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR‐FTIR), X‐ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM).RESULTSThe adsorption results revealed that the adsorption capacity of core/shell PEN/PPy nanofibrous mats increased with the decrease of initial solution pH and the adsorption process can be described by the pseudo‐second‐order model. These core/shell PEN/PPy nanofibrous mats showed high Cr (VI) adsorption capacity up to 165.3 mg g−1 at room temperature, which can largely be maintained after four adsorption/desorption cycles. Furthermore, the adsorption isotherms of PEN/PPy nanofibrous mats for Cr(VI) removal fitted the Langmuir isotherm model. The adsorption mechanism of electrostatic attraction between PEN/PPy nanofibrous mats was also presented.CONCLUSIONThe core/shell PEN/PPy nanofibrous mats in the form of flexible membrane allowed easy handling during application, and can be considered a stable and effective adsorbent for removal of heavy metals and other anionic contaminants from wastewater. © 2017 Society of Chemical Industry
Dominating sets inducing large components in maximal outerplanar graphs
Authors: Alvarado José D. , Dantas Simone , Rautenbach Dieter 
Published: November 2017

AbstractFor a maximal outerplanar graph G of order n at least three, Matheson and Tarjan showed that G has domination number at most . Similarly, for a maximal outerplanar graph G of order n at least five, Dorfling, Hattingh, and Jonck showed, by a completely different approach, that G has total domination number at most unless G is isomorphic to one of two exceptional graphs of order 12.We present a unified proof of a common generalization of these two results. For every positive integer k, we specify a set of graphs of order at least and at most such that every maximal outerplanar graph G of order n at least that does not belong to has a dominating set D of order at most such that every component of the subgraph of G induced by D has order at least k.
Characterization and oxidative stability of purslane seed oil microencapsulated in yeast cells biocapsules
Authors: Kavosi Maryam , Mohammadi Abdorreza , Shojaee‐Aliabadi Saeedeh , Khaksar Ramin , Hosseini Seyede Marzieh 
Published: November 2017

AbstractBACKGROUNDPurslane seed oil, as a potential nutritious source of omega‐3 fatty acid, is susceptible to oxidation. Encapsulation in yeast cells is a possible approach for overcoming this problem. In the present study, purslane seed oil was encapsulated in non‐plasmolysed, plasmolysed and plasmolysed carboxy methyl cellulose (CMC)‐coated Saccharomyces cerevisiae cells and measurements of oil loading capacity (LC), encapsulation efficiency (EE), oxidative stability and the fatty acid composition of oil‐loaded microcapsules were made. Furthermore, investigations of morphology and thermal behavior, as well as a Fourier transform‐infrared (FTIR) analyses of microcapsules, were performed.RESULTSThe values of EE, LC were approximately 53–65% and 187–231 g kg–1, respectively. Studies found that the plasmolysis treatment increased EE and LC and decreased the mean peroxide value (PV) of microencapsulated oil. The presence of purslane seed oil in yeast microcapsules was confirmed by FTIR spectroscopy and differential scanning calorimetry analyses. The lowest rate of oxidation belonged to the oil‐loaded plasmolysed CMC‐coated microcapsules (16.73 meqvO2 kg–1), whereas the highest amount of oxidation regardless of native oil referred to the oil‐loaded in non‐plasmolysed cells (28.15 meqvO2 kg–1).CONCLUSIONThe encapsulation of purslane seed oil in the yeast cells of S. cerevisiae can be considered as an efficient approach for extending the oxidative stability of this nutritious oil and facilitating its application in food products. © 2017 Society of Chemical Industry
Determination of the clean‐up efficiency of the solid‐phase extraction of rosemary extracts: Application of full‐factorial design in hyphenation with Gaussian peak fit function
Authors: Meischl Florian , Kirchler Christian Günter , Jäger Michael Andreas , Huck Christian Wolfgang , Rainer Matthias 
Published: November 2017

AbstractWe present a novel method for the quantitative determination of the clean‐up efficiency to provide a calculated parameter for peak purity through iterative fitting in conjunction with design of experiments. Rosemary extracts were used and analyzed before and after solid‐phase extraction using a self‐fabricated mixed‐mode sorbent based on poly(N‐vinylimidazole/ethylene glycol dimethacrylate). Optimization was performed by variation of washing steps using a full three‐level factorial design and response surface methodology. Separation efficiency of rosmarinic acid from interfering compounds was calculated using an iterative fit of Gaussian‐like signals and quantifications were performed by the separate integration of the two interfering peak areas. Results and recoveries were analyzed using Design‐Expert® software and revealed significant differences between the washing steps. Optimized parameters were considered and used for all further experiments. Furthermore, the solid‐phase extraction procedure was tested and compared with commercial available sorbents. In contrast to generic protocols of the manufacturers, the optimized procedure showed excellent recoveries and clean‐up rates for the polymer with ion exchange properties. Finally, rosemary extracts from different manufacturing areas and application types were studied to verify the developed method for its applicability. The cleaned‐up extracts were analyzed by liquid chromatography with tandem mass spectrometry for detailed compound evaluation to exclude any interference from coeluting molecules.
Primary and salvage laser surgery of 341 glottic cancers—Comparison of treatment outcomes between University Head Neck Tertiary Referral Center and Local Head Neck Department
Authors: Winiarski Piotr , Lewandowski Artur , Greczka Grażyna , Banaszewski Jacek , Klimza Hanna , Wierzbicka Małgorzata 
Published: November 2017

ObjectiveThe main goal was to compare the clinical data of patients with T1 and T2 glottic cancer treated with CO2 transoral laser microlaryngoscopy (TLM) in the Tertiary Referral University Department of Otolaryngology, Head Neck Surgery, Poznan and the local Department of Otolaryngology, Oncology and Maxillofacial Surgery, Bydgoszcz.Material and MethodsUnified databases for the 7‐year period January 2005–December 2011 were created to compare these two cohorts. The database contained 341 patients: 231 from the tertiary center and 110 from the local department, of which 298 (87%) were men, and 43 (13%) were women.ResultsCordectomy type I–IV was performed in 250 (73%) patients, cordectomy type V–VI in 84 (25%) patients, and cordectomy enlarged to epiglottic petiole in 7 (2%) patients. Local recurrence was observed in 96 (28%) cases. Among these cases, 81 (87.5%) patients had salvage surgery: 43 re‐cordectomy, 10 open partial laryngectomy, and 28 total laryngectomy. The outcomes for the whole cohort, Tertiary Referral Center and Local Department respectively were as follows: larynx preservation rate was 91.8%, 93.6%, and 88%; 3‐year disease specific survival was 97.4%, 97.9%, and 93.3%; 3‐year overall survival was 93.5%, 96.6%, and 85.5%; 5‐year disease specific survival was 95.2%, 95.2%, and 96.3%; and 5‐year overall survival was 84.5%, 88.7%, and 76%, respectively.ConclusionComparison of the cohorts showed that outcomes of primary treatment were similar but there were noticeable differences in salvage treatment efficacy, favoring patients from the Tertiary Referral Center. Lasers Surg. Med. 50:311–318, 2018. © 2017 Wiley Periodicals, Inc.
Resolving Inclusion Structure and Deformation Mechanisms in Polylactide Plasticized by Reactive Extrusion
Authors: Brüster Berit , Amozoqueño Camilo , Grysan Patrick , Peral Inma , Watts Benjamin , Raquez Jean‐Marie , Dubois Philippe , Addiego Frédéric 
Published: November 2017

AbstractA multiscale characterization approach is developed to resolve the structure of inclusions in polylactide (PLA) plasticized with acrylated poly(ethylene glycol) (acrylPEG) by reactive extrusion. Scanning transmission X‐ray microscopy (STXM) coupled with near‐edge X‐ray absorption fine structure (NEXAFS) nanospectroscopy demonstrates that these inclusions have a core–shell morphology. This technique also proves that the inclusions consist of polymerized acrylPEG (poly(acrylPEG)), which is also confirmed by elastic modulus measurement using an atomic force microscope. The shell consists of poly(acrylPEG)‐rich domains, while the core is less rich in the polymerized plasticizer. Upon drawing, the density of the inclusion's core and shell markedly decreases as shown by microcomputed X‐ray tomography measurements, and no inclusion–matrix debonding is observed. At the same time, sub‐micrometer cracks are noted between inclusions by STXM/NEXAFS imaging, which may result from the presence of crosslinking points restricting the local chain mobility. Novel knowledge about the reactive extrusion‐induced PLA structure is released.
Effect of Draw Ratio on Physical, Release, and Antibacterial Properties of Poly(ε‐caprolactone) Loaded with Lysozyme
Authors: Bugatti Valeria , Acocella Maria Rosaria , Maggio Mario , Vigliotta Giovanni , Pantani Roberto , Gorrasi Giuliana 
Published: November 2017

AbstractIn this work, some films of poly(ε‐caprolactone) (PCL) containing lysozyme at 5% by weight are obtained. Lysozyme is a natural antimicrobial molecule. The films are submitted to cold drawing process at three different draw ratios, λ = 3, 4, and 5, where λ is the ratio between final and initial length. Morphology, physical and barrier properties of the drawn samples are studied and correlated to the release of lysozyme. Tests against Bacillus sp are performed and correlated to the material texture. The molecular orientation of uniaxially drawn lysozyme doped PCL films is demonstrated to be a significant parameter for controlled release monitoring of the active molecule and the antimicrobial activity.