bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synergistic compatibilization and reinforcement of HDPE/wood flour composites
Authors: Dai Baojie , Wang Quan , Yan Wei , Li Zhuang , Guo Weihong 
Published: November 2015

ABSTRACTMulti‐monomer grafted copolymers, high‐density polyethylene‐grafted‐maleic anhydride‐styrene (HDPE‐g‐(MAH‐St)) and polyethylene wax‐grafted‐ maleic anhydride ((PE wax)‐g‐MAH), were synthesized and applied to prepare high‐performance high‐density polyethylene (HDPE)/wood flour (WF) composites. Interfacial synergistic compatibilization was studied via the coordinated blending of high‐density polyethylene‐grafted‐maleic anhydride (MPE‐St) and polyethylene wax‐grafted‐ maleic anhydride (MPW) in the high‐density polyethylene (HDPE)/wood flour (WF) composites. Scanning electron microscopy (SEM) morphology and three‐dimensional WF sketch presented that strong interactive interface between HDPE and WF, formed by MPE‐St with high graft degree of maleic anhydride (MAH) together with the permeating effect of MPW with a low molecular weight. Experimental results demonstrated that HDPE/WF composites compatibilized by MPE‐St/MPW compounds showed significant improvement in mechanical properties, rheological properties, and water resistance than those compatibilized by MPE, MPE‐St or MPW separately and the uncompatibilized composites. The mass ratio of MPE‐St/MPW for optimizing the HDPE/WF composites was 5:1. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42958.
Preparation of polyethersulfone/sulfonated polyethersulfonephenylethane microspheres and its application for the adsorption of bisphenol A
Authors: Qiu Fang , Peng Minle , Wei Zhimei , Wang Xiaojun , Yang Jie 
Published: November 2015

ABSTRACTA novel kind of sulfonated polyethersulfonephenylethane (SPESPE) was successfully synthesized firstly in this work. Then the SPESPE was introduced in polyethersulfone (PES) microspheres prepared by the electrospraying technique. The microspheres were applied to adsorbing bisphenol A (BPA) from its aqueous solution. Compared with the PES microspheres, the adsorption capacity of PES/SPESPE microspheres for BPA was increased significantly. Furthermore, the adsorption capacity of PES/SPESPE microspheres was enhanced by increasing the amounts of SPESPE in the microspheres. The pH of solution had influence on the adsorption capacity of PES/SPESPE microspheres. The kinetic data of adsorption were found to follow pseudo‐second‐order model. The Freundlich isotherm model was suitable to describe the equilibrium adsorption data. The microspheres also showed excellent regeneration and reuse ability. These results indicated that the PES/SPESPE microspheres have the potential to be used in environmental application. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43066.
What Protects Certain Nerves from Stretch Injury?
Authors: Schraut Nicholas B. , Walton Sharon , Monsef Jad Bou , Shott Susan , Serici Anthony , Soulii Lioubov , Amirouche Farid , Gonzalez Mark H. , Kerns James M. 
Published: November 2015

ABSTRACTThe human tibial nerves is less prone to injury following joint arthroplasty compared with the peroneal nerves. Besides the anatomical distribution, other features may confer protection from stretch injury. We therefore examined the size, shape and connective tissue distribution for the two nerves. The tibial and peroneal nerves from each side of nine fresh human cadavers we reharvested mid‐thigh. Proximal segments manually stretched 20%–25% were fixed in aldehyde, while the adjacent distal segments were fixed in their natural length. Paraffin sections stained by Masson's trichrome method for connective tissue were examined by light microscopy. Tibial nerves had 2X more fascicles compared with the peroneal, but the axonal content appeared similar. Analysis showed that neither nerve had a significant reduction in cross sectional area of the fascicles following stretch. However, fascicles from stretched tibial nerves become significantly more oval compared with those from unstretched controls and peroneal nerves. Tibial nerves had a greater proportion that was extrafascicular tissue (50‐55%) compared with peroneal nerves (38%–42%). This epineurium was typically adipose tissue. Perineurial thickness in both nerves was directly related to fascicular size. Tibial nerves have several unique histological features associated with size, shape and tissue composition compared with the peroneal nerve. We suggest that more fascicles with their tightly bound perineurium and more robust epineurium afford protection against stretch injury. Mechanical studies should clarify how size and shape contribute to nerve protection and/or neurapraxia. Anat Rec, 299:111–117, 2016. © 2015 Wiley Periodicals, Inc.
Minimum‐Time State Feedback Stabilization of Constrained Boolean Control Networks
Authors: Li Haitao , Wang Yuzhen 
Published: November 2015

AbstractMinistry in 2005, and the National Prize of Natural Science of China in 2008. Currently, he is Associate Editor IMA Journal of Math Control and Inform., and a Technical Committee member of IFAC (TC2.3).This paper investigates the state feedback stabilization of Boolean control networks (BCNs) with state and input constraints by using the semi‐tensor product of matrices. Firstly, a kind of constrained input‐state incidence matrix is proposed for constrained BCNs, which contains all the reachability information of the constrained systems. Secondly, based on the constrained input‐state incidence matrix, a necessary and sufficient condition is presented for the stabilization of constrained BCNs via state feedback. Thirdly, a general procedure is proposed to design all possible minimum‐time state feedback stabilizers. The study of an illustrative example shows that the new results obtained are effective in analyzing the stabilization of constrained BCNs.
Redesign of the Active Site of Sucrose Phosphorylase through a Clash‐Induced Cascade of Loop Shifts
Authors: Kraus Michael , Grimm Clemens , Seibel Jürgen 
Published: November 2015

AbstractSucrose phosphorylases have been applied in the enzymatic production of glycosylated compounds for decades. However, several desirable acceptors, such as flavonoids or stilbenoids, that exhibit diverse antimicrobial, anticarcinogenic or antioxidant properties, remain poor substrates. The Q345F exchange in sucrose phosphorylase from Bifidobacterium adolescentis allows efficient glucosylation of resveratrol, (+)‐catechin and (−)‐epicatechin in yields of up to 97 % whereas the wild‐type enzyme favours sucrose hydrolysis. Three previously undescribed products are made available. The crystal structure of the variant reveals a widened access channel with a hydrophobic aromatic surface that is likely to contribute to the improved activity towards aromatic acceptors. The generation of this channel can be explained in terms of a cascade of structural changes arising from the Q345F exchange. The observed mechanisms are likely to be relevant for the design of other tailor‐made enzymes.
Increased bleeding risk during percutaneous coronary interventions by arterial hypertension
Authors: Ndrepepa Gjin , Groha Philipp , Lahmann Anna L. , Lohaus Raphaela , Cassese Salvatore , Schulz‐Schüpke Stefanie , Kufner Sebastian , Mayer Katharina , Bernlochner Isabell , Byrne Robert A. , Fusaro Massimiliano , Laugwitz Karl‐Ludwig , Schunkert Heribert , Kastrati Adnan 
Published: November 2015

ObjectivesWe aimed to assess the association between arterial hypertension and bleeding in patients undergoing percutaneous coronary intervention (PCI).BackgroundThe impact of arterial hypertension on bleeding risk of patients with coronary artery disease undergoing PCI is unknown.MethodsThis study included 14,180 patients who underwent PCI. Bleeding was defined using the Bleeding Academic Research Consortium (BARC) criteria. Arterial hypertension was defined as treatment with antihypertensive drugs or a systolic blood pressure >140 mm Hg and/or diastolic blood pressure value >90 mm Hg documented on at least 2 occasions. The primary outcome was bleeding rate within 30 days of PCI.ResultsOverall, 11,066 patients (78.0%) had arterial hypertension. Bleeding events occurred in 1,232 patients with arterial hypertension and 278 patients without arterial hypertension (11.1% vs 8.9%; odds ratio [OR] = 1.28, 95% confidence interval [CI] 1.11–1.46, P < 0.001). Access‐site bleeding occurred in 730 patients with arterial hypertension and 175 patients without arterial hypertension (6.6% vs 5.6%: OR = 1.19 [1.01–1.41], P = 0.049). Non‐access‐site bleeding occurred in 502 patients with and 103 patients without arterial hypertension (4.5% vs 3.3%; OR = 1.39 [1.12–1.72], P = 0.003). After adjustment, arterial hypertension was significantly associated with any bleeding (adjusted OR = 1.41 [1.19–1.67], P < 0.001), access‐site bleeding (adjusted OR = 1.36 [1.10–1.68], P = 0.005) and non‐access‐site bleeding (adjusted OR = 1.42 [1.09–1.83], P = 0.008). A history of arterial hypertension increased the risk of non‐access‐site bleeding (P = 0.002), whereas systolic blood pressure at the time of PCI increased the risk of access site bleeding (P = 0.018).ConclusionsArterial hypertension is associated with increased risk of bleeding during PCI procedures. © 2015 Wiley Periodicals, Inc.
Left dominant circulation increases mortality in acute coronary syndrome: A systematic review and meta‐analysis of observational studies involving 255,718 patients
Authors: Khan Abdur R. , Khan Luni Faraz , Bavishi Chirag , Khan Sobia , Eltahawy Ehab A. 
Published: November 2015

BackgroundThe effect of coronary dominance on mortality in patients with acute coronary syndrome (ACS) remains unclear. We performed a meta‐analysis to evaluate the effect of coronary dominance in patients with ACS.MethodsSeveral data sources were searched for studies which compared studies that compared outcomes between right and left dominant coronary circulation in patients with ACS. The measured outcomes were in‐hospital, 30‐day or long‐term mortality as reported in individual studies. The Generic inverse variance method was used in a random‐effects model to pool mortality as an outcome. Odds ratio (OR) was calculated for mortality in the left dominant circulation relative to a right dominant one. Sub‐group analysis was performed after stratification of mortality by duration.ResultsA total of 5 studies with 8 comparisons and 255,718 participants revealed an increased risk mortality (OR = 1.27 (95% CI: 1.13 − 1.42; P < 0.0001; I2 = 34%). Sub‐group analysis revealed that the increased risk was evident at all time periods after the ACS; in‐hospital (OR = 1.37; 95% CI: 1.07 − 1.76; P = 0.01; I2 = 50%), at 30 days (OR = 1.69; 95% CI: 1.14 − 2.52; P = 0.009; I2 = 18%) and long‐term (OR = 1.15; 95% CI: 1.03 − 1.28; P = 0.01; I2 = 0%).ConclusionsIn this meta‐analysis we found that there is an increased risk of mortality with LD coronary circulation in patients with ACS. The knowledge of coronary dominance may not only be helpful as an incremental prognostic factor beyond pre‐procedural risk scores in all patients with ACS, but may also aid in clinical decision making in a subset of these patients. © 2015 Wiley Periodicals, Inc.
Use of local anesthetic (0.25% bupivacaine) for pain control after pediatric cardiac catheterization: A randomized controlled trial
Authors: Palma Amy , Viegas Jacqueline , Manlhiot Cedric , McCrindle Brian , Benson Lee 
Published: November 2015

ObjectivesTo investigate the effects of local infiltration of 0.25% bupivacaine on post‐operative pain and analgesic use in children undergoing cardiac catheterization procedures.BackgroundIn pediatric catheterization procedures performed under general anesthesia, a local anesthetic is often used prior to femoral sheath removal. There are no published reports of the impact of local anesthetic infiltration on pain after pediatric procedures, and mixed reports on its effectiveness in adults.MethodsA randomized controlled trial was undertaken of 140 children, aged 7–18 years undergoing cardiac catheterization under general anesthesia via the femoral vein or artery. Participants received a subcutaneous infiltration of 0.25% bupivacaine at the access site prior to sheath removal, or usual care without bupivacaine. Outcomes included patient reported pain scores and analgesic use up to 6 hr after the procedure.ResultsPain scores were similar between groups through the 6‐hr post‐procedure period. The proportion of children reporting a maximal pain score of ≤2/10 was higher in the bupivacaine group (64% vs. 44%, P = 0.03). A significantly higher proportion of children in the control group required IV morphine (18.8% vs. 4.5%, P = 0.02).ConclusionsMorphine use can be reduced with the use of 0.25% bupivacaine given prior to femoral sheath removal and should be considered for post‐procedural pain control for pediatric patients undergoing cardiac catheterization. This study is the first to contribute evidence to the effectiveness of 0.25% bupivacaine after pediatric cardiac catheterization. © 2015 Wiley Periodicals, Inc.
Cardiac computed tomography assessment of the near term impact of percutaneous ventricular restoration therapy (parachute®) on mitral valve geometry
Authors: Tam Chor Cheung , Fares Anas , Alaiti Amer , Shaikh Kashif , Ince Hüseyin , Erglis Andrejs , Bezerra Hiram G. , Abraham William T. , Costa Marco A. , Attizzani Guilherme F. 
Published: November 2015

ObjectivesThe aim of current study is to assess the near term impact of percutaneous ventricular restoration therapy (PVR), Parachute® on mitral valve (MV) geometry by cardiac computed tomography (CCT).BackgroundRecent data demonstrates the feasibility of PVR for treatment of post anterior myocardial infarction (MI) heart failure. Little is known, however, about the interaction of the device and left ventricular structures, particularly the MV apparatus.MethodsThis is a retrospective Core Laboratory analysis of Parachute Trials’ CCT data. Patients with paired (before and after Parachute implant) CCT acquisitions were included into analysis. MV geometric parameters were measured.ResultsThirty‐three patients were included in the analysis. The mean time of follow‐up CCT post procedure was 188 ± 52 days. There were significant reduction in tenting height (A1P1: −1.70 ± 1.89 mm, −17.40 ± 20.20%; A2P2: −1.43 ± 1.89 mm, −12.10 ± 15.00%; A3P3: −1.54 ± 1.58 mm, −15.50 ± 15.20%, P < 0.001), tenting volume (−0.93 ± 0.60 mm3, −22.00 ± 11.40%, P < 0.001), systolic interpapillary muscle distance (−2.22 ± 2.11 mm, −7.51 ± 7.23%, P < 0.001) and diastolic interpapillary muscle distance (−3.14 ± 2.20 mm, −8.46 ± 5.73%, P < 0.001) post PVR.ConclusionsIn post anterior MI heart failure patients, PVR has favorable near term impact on MV geometry as assessed by CCT. © 2015 Wiley Periodicals, Inc.
A meta analysis of current status of alcohol septal ablation and surgical myectomy for obstructive hypertrophic cardiomyopathy
Authors: Singh Kuljit , Qutub Mohammad , Carson Kristin , Hibbert Benjamin , Glover Christopher 
Published: November 2015

ObjectiveOur objective was to perform an updated systematic review to compare the efficacy and short‐ and long‐term mortality of surgical myectomy (SM) and alcohol septal ablation (ASA) by including most recent and largest cohort studies published in last few years. Background: SM and ASA are the two invasive strategies used to relieve left ventricular outflow tract obstruction (LVOTO) in patients with drug refractory symptomatic hypertrophic cardiomyopathy (HCM). In the absence of a randomized trial, we tried to compare the pros and cons of the two procedures using a systematic review and meta‐analysis. Method: A comprehensive search of three major databases was performed. We included original research studies comparing data on ASA and SM. Of 1,143 citations, 10 studies were included in the analysis. Results: A total of 805 patients underwent ASA and 1,019 underwent SM. Patients undergoing SM were younger (MD 6.3, P = 0.0001) and had higher reduction in the LVOT gradient (MD −9.56, P = 0.05). However, there was similar resolution of class III and IV symptoms between the two groups (P = 0.56). There was no difference in sudden cardiac death (SCD) (P = 0.93), short‐term (P = 0.36), long‐term all cause (P = 0.27), and long‐term cardiac mortality (P = 0.58). Patients undergoing ASA had higher incidence of post procedure device implantation (OR 3.09, P < 0.00001). Conclusion: No significant difference in symptom relief was noted between the two approaches. ASA was as safe a myectomy with regards to SCD, short‐term, and long‐term mortality. © 2015 Wiley Periodicals, Inc.
Reduction of atherothrombotic burden before stent deployment in non‐ST elevation acute coronary syndromes: Reduction of myocardial necrosis achieved with nose‐dive manual thrombus aspiration (REMNANT) trial. A volumetric intravascular ultrasound study
Authors: Zimarino Marco , Angeramo Francesca , Prasad Abhiram , Ruggieri Benedetta , Malatesta Sara , Prati Francesco , Buttitta Fiamma , De Caterina Raffaele 
Published: November 2015

ObjectivesTo test whether thrombus aspiration (TA) reduces the atherosclerotic burden in culprit lesions and “facilitate” percutaneous coronary intervention with stent (S‐PCI) among patients with non‐ST elevation acute coronary syndromes (NSTE‐ACS).BackgroundEvidence on the effects of TA adjunctive to S‐PCI in NSTE‐ACS is limited and controversial.MethodsTA was defined “aggressive” when using 7F devices or a catheter/artery ratio >0.6, “conservative” with 6F, and a catheter/artery ratio ≤0.6. Angiography and intravascular ultrasound (IVUS) were performed at baseline, after TA and after stent deployment.ResultsTA was accomplished in 61/76 patients (80%) with NSTE‐ACS. The aspirated material was red thrombus in 23% and plaque fragments in 49% of cases. Compared with baseline, TA was associated with an 82% increase in minimal lumen diameter and a 15% reduction in diameter stenosis (P < 0.001 for both). After TA, IVUS documented a 24 and 16% increase in minimal lumen area and lumen volume, respectively (P < 0.001 for both), a 7% decrease in area stenosis through an 11% reduction of plaque + media volume (P < 0.001). When compared with “conservative”, an “aggressive” TA was associated with a more pronounced reduction in percent area stenosis (P < 0.05) and an increase in percent stent expansion (P < 0.001). The plaque + media volume reduction after TA was correlated with stent expansion (r = 0.261, P = 0.046).ConclusionsManual TA reduces atherothrombotic burden in culprit lesions of NSTE‐ACS patients before S‐PCI and, when deep plaque removal is obtained, TA optimizes subsequent stent expansion. © 2015 Wiley Periodicals, Inc.
Atomically Controllable Pd@Pt Core–Shell Nanoparticles towards Preferential Oxidation of CO in Hydrogen Reactions Modulated by Platinum Shell Thickness
Authors: Cao Kun , Liu Xiao , Zhu Qianqian , Shan Bin , Chen Rong 
Published: November 2015

AbstractThe shell‐thickness effect of Pd@Pt core–shell nanoparticles (NPs) towards the preferential oxidation of CO in the presence of excess H2 (PROX) was investigated. Atomically controllable Pd@Pt core–shell nanoparticles were fabricated by using an area‐selective atomic layer deposition (ALD) method. A linear growth rate of Pt on a Pd surface monitored with in situ quartz crystal microbalance indicated that the shell thickness could be controlled by varying the number of ALD cycles. The core–shell Pd@Pt NPs showed better activity and selectivity than monometallic NPs. The catalyst with a monolayer Pt shell showed optimal performance and minimal Pt loading. The mechanism of the Pt shell on Pd core catalyzed PROX reactions was studied by DFT simulations. The energy barriers to CO oxidation significantly decreased upon coating the catalyst with Pt, which led to enhanced activity and selectivity, and Pd/Pt1 monolayer showed the lowest barrier.
Mechanistic Study of Photocatalytic Hydrogen Generation with Simple Iron Carbonyls as Water Reduction Catalysts
Authors: Fischer Steffen , Bokareva Olga S. , Barsch Enrico , Bokarev Sergey I. , Kühn Oliver , Ludwig Ralf 
Published: November 2015

AbstractThis study provides new insights into light‐driven hydrogen generation using an iridium photosensitizer (IrPS) and simple iron carbonyls as water reduction catalysts (WRCs). Stopped‐flow rapid‐scan FTIR and operando continuous‐flow FTIR spectroscopy as well as time‐dependent density functional theory (TD‐DFT) has been applied to study the reaction. The conversion of the WRC precursor [Fe3(CO)12] into the radicals [Fe3(CO)11].− and [Fe2(CO)8].− as well as [Fe(CO)5] in the absence of light in a solvent mixture of tetrahydrofuran, triethylamine, and water has been studied quantitatively. During light‐induced hydrogen production in the presence of the IrPS, the trimeric [HFe3(CO)11]− and the monomeric [HFe(CO)4]− anion could be identified as major WRC species. The equilibrium between both species can be shifted completely towards [HFe(CO)4]− by increasing the water content of the solvent mixture. Application of other iron(0) carbonyl compounds as WRC precursors also results in the exclusive formation of [HFe(CO)4]−. Kinetic experiments show that the stability of the system is primarily influenced by the applied amount of WRC precursor, whereas the reaction rate is mainly determined by the concentration of the IrPS. At least two loss channels could be identified: light‐induced CO dissociation from the WRC and decomposition of the IrPS at high IrPS/WRC ratios, accompanied by a ligand transfer from the iridium towards the iron center of the WRC. To reveal the nature of the catalytically active complex, binding energies and charge‐transfer probabilities of all coordination geometries of various IrPS⋅⋅⋅WRC complexes have been calculated. These computations indicate an increased probability of charge transfer for dimeric and trimeric iron carbonyl species.
The Synthesis and Characterization of Aromatic Hybrid Anderson–Evans POMs and their Serum Albumin Interactions: The Shift from Polar to Hydrophobic Interactions
Authors: Al‐Sayed Emir , Blazevic Amir , Roller Alexander , Rompel Annette 
Published: November 2015

AbstractFour aromatic hybrid Anderson polyoxomolybdates with Fe3+ or Mn3+ as the central heteroatom have been synthesized by using a pre‐functionalization protocol and characterized by using single‐crystal X‐ray diffraction, FTIR, ESI‐MS, 1H NMR spectroscopy, and elemental analysis. Structural analysis revealed the formation of (TBA)3[FeMo6O18{(OCH2)3CNHCOC6H5}2]⋅3.5 ACN (TBA‐FeMo6‐bzn; TBA=tetrabutylammonium, ACN=acetonitrile, bzn=TRIS‐benzoic acid alkanolamide, TRISR=(HOCH2)3CR)), (TBA)3[FeMo6O18{(OCH2)3CNHCOC8H7}2]⋅2.5 ACN (TBA‐FeMo6‐cin; cin=TRIS‐cinnamic acid alkanolamide), (TBA)3[MnMo6O18{(OCH2)3CNHCOC6H5}2]⋅3.5 ACN (TBA‐MnMo6‐bzn), and (TBA)3[MnMo6O18{(OCH2)3CNHCOC8H7}2]⋅2.5 ACN (TBA‐MnMo6‐cin). To make these four compounds applicable in biological systems, an ion exchange was performed that gave the water‐soluble (up to 80 mM) sodium salts Na3[FeMo6O18{(OCH2)3CNHCOC6H5}2] (Na‐FeMo6‐bzn), Na3[FeMo6O18{(OCH2)3CNHCOC8H7}2] (Na‐FeMo6‐cin), Na3[MnMo6O18{(OCH2)3CNHCOC6H5}2] (Na‐MnMo6‐bzn), and Na3[MnMo6O18{(OCH2)3CNHCOC8H7}2] (Na‐MnMo6‐cin). The hydrolytic stability of the sodium salts was examined by applying ESI‐MS in the pH range of 4 to 9. Sodium dodecylsulfate–polyacrylamide gel electrophoresis (SDS‐PAGE) showed that human and bovine serum albumin (HSA and BSA) remain intact in solutions that contain up to 100 equivalents of the sodium salts over more than 4 d at 20 °C. Tryptophan (Trp) fluorescence quenching was applied to study the interactions between the sodium salts and HSA and BSA at pH 5.5 and 7.4. The quenching constants were extracted by using Stern–Volmer analysis, which suggested the formation of a 1:1 POM–protein complex in all samples. It is suggested that the aromatic hybrid POM approaches subdomain IIA of HSA and exhibits hydrophobic interactions with its hydrophobic tails, whereas the Anderson core is stabilized through electrostatic interactions with polar amino acid side chains from, for example, subdomain IB.