bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adhesives from Polymeric Methylene Diphenyl Diisocyanate Resin and Recycled Polyols for Plywood
Authors: Li Qi , Li Ming , Chen Cheng , Cao Guangmei , Mao An , Wan Hui 
Published: December 2016

Abstract
In this study, polyols recycled from decomposed polyurethane (PU) foam wastes were used in preparing adhesives for plywood manufacturing. A polyol was made from chemically decomposed flexible PU foam wastes separated from automobile shredder residue. The recycled polyol was mixed with a commercial polyol at weight ratios of 100/0, 25/75, 50/50, 25/75, and 0/100, respectively. These polyol mixtures were mixed, respectively, with polymeric methylene diphenyl diisocyanate at isocyanate group–to–hydroxyl group (NCO/OH) molar ratios of 1.0, 1.25, and 1.5 to prepare adhesives. The recycled polyol and adhesives were characterized by Fourier transform infrared spectroscopy. Plywood specimens bonded by the adhesives were fabricated and tested. The effects of NCO/OH molar ratio and recycled polyol–to–commercial polyol weight ratio on adhesive gel time and bonding strength before and after water treatments were evaluated. The adhesives prepared from recycled polyol presented shorter gel time and greater dry bonding strength than those prepared from commercial polyol. The adhesives prepared from the recycled polyol–commercial polyol weight ratio of 50/50 and NCO/OH molar ratio of 1.25 showed the best bonding performance after cyclic boiling water treatment. Multilinear regressions showed that NCO/OH molar ratio was the main factor in developing plywood shear strength.
Monitoring of procalcitonin but not interleukin-6 is useful for the early prediction of anastomotic leakage after colorectal surgery
Authors: Zielińska-Borkowska Urszula , Dib Naser , Tarnowski Wiesław , Skirecki Tomasz 
Published: December 2016

AbstractBackground:Early recognition of patients who have developed anastomotic leakage (AL) after colorectal surgery is crucial for the successful treatment of this complication. The aim of this study was to assess the usefulness of the assessment of procalcitonin (PCT) and interleukin-6 (IL-6) levels in the prognosis of AL.Methods:This observational study included 157 patients who underwent major elective colorectal surgery. The most common indications for surgery were cancer and inflammatory bowel diseases. Serum samples were obtained directly before surgery (D0) and 1 day (D1) after surgery, and the relationships between the serum concentrations of PCT and IL-6 and development of AL were assessed.Results:In total, 10.2% of patients developed post-surgical infections due to AL. PCT levels on D1 were significantly higher in patients who developed AL [2.73 (1.40–4.62)] than in those who recovered without complications [0.2 (0.09–0.44)]. The area under the ROC curve for PCT on D1 was 0.94, 95% CI (0.89–0.98). The sensitivity and specificity of the prediction of an infection were 87% and 87%, respectively, for PCT on D1, which was higher than 1.09 ng/mL. The increase in PCT concentration between D0 and D1 was significantly higher in patients with AL (p<0.001). Patients who developed AL had higher concentrations of IL-6 on D1, but the difference was not significant (p=0.28).Conclusions:This study confirms that surgical trauma increases serum PCT concentrations and that the concentration of PCT on D1 can predict AL after colorectal surgery. However, IL-6 is not a good early marker for developing AL.
Mitochondrial cytochrome c oxidase is inhibited by ATP only at very high ATP/ADP ratios
Authors: Ramzan Rabia , Schaper Andreas K. , Weber Petra , Rhiel Annika , Siddiq Muhammad Saad , Vogt Sebastian 
Published: December 2016

AbstractIn the past, divergent results have been reported based on different methods and conditions used for enzymatic activity measurements of cytochrome c oxidase (CytOx). Here, we analyze in detail and show comparable and reproducible polarographic activity measurements of ATP-dependent inhibition of CytOx kinetics in intact and non-intact rat heart mitochondria and mitoplasts. We found that this mechanism is always present in isolated rat heart mitochondria and mitoplasts; however, it is measurable only at high ATP/ADP ratios using optimal protein concentrations. In the kinetics assay, measurement of this mechanism is independent of presence or absence of Tween-20 and the composition of measuring buffer. Furthermore, the effect of atractyloside on intact rat heart mitochondria confirms that (i) ATP inhibition occurs under uncoupled conditions [in the presence of carbonly cyanide m-chlorophenyl hydrazone (CCCP)] when the classical respiratory control is absent and (ii) high ATP/ADP ratios in the matrix as well as in the cytosolic space are required for full ATP inhibition of CytOx. Additionally, ATP inhibition measured in intact mitochondria extends in the presence of oligomycin, thus indicating further that the problem to measure the inhibitory effect of ATP on CytOx is apparently due to the lack of very high ATP/ADP ratios in isolated mitochondria.
Multiple Comparisons Using Composite Likelihood in Clustered Data
Authors: Azadbakhsh Mahdis , Gao Xin , Jankowski Hanna 
Published: December 2016

Abstract
We study the problem of multiple hypothesis testing for correlated clustered data. As the existing multiple comparison procedures based on maximum likelihood estimation could be computationally intensive, we propose to construct multiple comparison procedures based on composite likelihood method. The new test statistics account for the correlation structure within the clusters and are computationally convenient to compute. Simulation studies show that the composite likelihood based procedures maintain good control of the familywise type I error rate in the presence of intra-cluster correlation, whereas ignoring the correlation leads to erratic performance.
Gaseous Electrical Discharge-Induced Degradation of Organic Compound in Wastewater: UV Irradiation and Ozonation Effect
Authors: Mok Young Sun , Jo Jin-Oh , Woo Changsu 
Published: December 2016

AbstractThis study investigated the degradation of an organic compound (an azo dye, Acid Red 4) in a synthetic wastewater by using dielectric barrier discharge (DBD) tube comprised of a hollow quartz cylinder and a coaxial copper rod. The DBD tube was immersed in the wastewater that was connected to the ground electrode. When AC high voltage was applied to the copper electrode, the electrical discharge occurred inside the quartz cylinder to produce ultraviolet (UV) light and reactive species such as ozone. The photocatalytic degradation of the organic compound with the UV emitted from the DBD tube was carried out in the presence of aluminum meshes coated with titanium oxide. The system further comprised a gas diffuser that distributed the ozone-containing gas produced in the DBD tube into the wastewater, such that the organic compound were degraded by reacting with ozone. The contributions of the photocatalysis and the ozonation to the degradation were separately assessed, and then combined effect on the degradation was examined. The results clearly revealed that the present system capable of degrading the organic compound in two ways (DBD-induced photocatalysis and ozonation) was very effective for the treatment of the wastewater.
Optimization of Parameters for Hydrogen Production by Photocatalytic Alcohol Reforming in the Presence of Pt/TiO2 Nanocrystalline Thin Films
Authors: Strataki Nikoleta , Lianos Panagiotis 
Published: December 2016

AbstractNanocrystalline Titania films have been deposited on glass slides by solgel solvolysis with acetic acid in the presence of surfactant template. The quantity of Titania on each slide was modified by depositing subsequent layers followed by calcination at 550 °C. Platinum was then deposited on these films by adsorption from aqueous solutions containing Na
Phenol Degradation by UV-Enhanced Catalytic Wet Peroxide Oxidation Process
Authors: Liu Peng , Li Chaolin , Han Qi , Lu Gang , Dong Xiaoqing , Ji Fei , Xu Jianhui 
Published: December 2016

AbstractIn this study, degradation of phenol solution by the ultraviolet-enhanced catalytic wet peroxide oxidation process (UV-CWPO) were evaluated via COD removal. Six kinds of homogeneous catalysts (Fe
The Photocatalytic Conversion of (Biodiesel Derived) Glycerol to Hydrogen - A Short Review and Preliminary Experimental Results Part 2: Photocatalytic Conversion of Glycerol to Hydrogen in Batch and Semi-batch Laboratory Reactors
Authors: Stelmachowski Marek , Marchwicka Malwina , Grabowska Ewelina , Diak Magdalena , Zaleska Adriana 
Published: December 2016

AbstractThe paper presents a short review of published results about different methods of waste glycerol conversion to the various chemicals and energy carriers as well the preliminary experimental results of the photocatalytic glycerol conversion into hydrogen. The first part of the paper presents literature data pertaining to the glycerol utilization, including thermal methods (incineration, pyrolysis, gasification and reforming), catalytic oxidation, chemical and biochemical conversion and photoconversion into hydrogen, are presented. The mechanism of selected processes and reaction conditions are also discussed. The second part of the paper presents the results of the hydrogen production over irradiated aqueous glycerol solution containing TiO
Mechanism of Synergistic Photocatalytic Cr(VI)-reduction and Benzoic Acid Oxidatiοn by Visible Light Active TiO2 Photocatalysts
Authors: Skoutelis Charalambos G. , Antonopoulou Maria , Giannakas Aris E. , Deligiannakis Yiannis , Konstantinou Ioannis K. 
Published: December 2016

AbstractThe photocatalytic activity of nanostructured N-doped TiO
Improvement of Stability for NO Removal in Multipoint Barrier Discharge Reactor by Pulse Applied Voltage
Authors: Takaki T. , Fujiwara T. , Naito J. , Sato T. 
Published: December 2016

AbstractImprovement of stability for NO removal in dielectric barrier discharge (DBD) reactor by pulse applied voltage is described in this paper. Two different types of power supply are used to drive the DBD reactor. The ac type power supply produces a sinusoidal waveform at 10 kV in amplitude and 10 kHz in frequency. The pulse voltage of 10 kV is generated by a full-bridge type pulse modulator using insulated gate bipolar transistor (IGBT) switches. A duty factor of the pulse voltage is controlled in the range from 10 to 80% with a gate signal of the IGBT switches. A multipoint electrode is used in the DBD reactor for low voltage drive. NO gas is diluted with nitrogen and oxygen gas mixture (N
Scale-up Preparation of Titania Bundle-like Nanopowders via Hydrothermal Reaction by Using Titanium Powder as Precursor
Authors: Lv Yingying , Yu Leshu , Ai Wenwen 
Published: December 2016

AbstractOne of main missions for chemistry is to find facile and effective synthetic routes to advanced nanomaterials. A principle feature in this study lays first in the utilization of titanium powder as Ti resource to fabricate onedimensional (1D) pure TiO
Degradation of Chrysoidin Dye by Fenton and Photo-Fenton Reaction Using Natural Marmatite as Catalyst
Authors: Ramirez J. H. , Zea H. R. , Cramer Thomas 
Published: December 2016

AbstractHeterogeneous dark Fenton and photocatalytic degradation of azo-dye chrysoidin were studied using natural marmatite from a Colombian gold deposit as catalysts. Marmatite is composed of zinc sulfates, iron sulfates and iron oxides; due to this composition marmatite is an active material in the degradation of chrysoidin. Marmatite was characterized by SEM, XRD, BET and XRF. Experimental results allow concluding that the dye was oxidized (degraded) in both, heterogeneous Fenton and photo-catalyst reactions, using Marmatite as catalyst. The variables considered were solution pH, marmatite concentration, C
Removal of Polycyclic Aromatic Hydrocarbons from Sediments using Chemical Oxidation Processes
Authors: Chen Chiu-Wen , Binh Nguyen Thanh , Hung Chang-Mao , Chen Chih-Feng , Dong Cheng-Di 
Published: December 2016

AbstractThe presence of polycyclic aromatic hydrocarbons (PAHs) in sediments is a major concern of risks associated with the aquatic ecosystems through bioaccumulation in food chains. To minimize the ecological risks due to contaminated sediments, processes that can degrade the sorbed PAHs are urgently needed. The present study aims at assessing the treatment efficiency of several chemical oxidation processes using potassium permanganate (KMnO
Application of Advanced Oxidation Technologies for Decolorization and Mineralization of Textile Wastewaters
Authors: Bilinska Lucyna , Gmurek Marta , Ledakowicz Stanislaw 
Published: December 2016

AbstractReactive dyes are the most abundantly used in textile industry due to their high color fastness, wide color spectrum as well as low energy consumption. The presence of these dyes in effluent released into receiving waters has become a serious environmental problem not only related to their color but mainly because of the hazardous byproducts. An environmentally sustainable development policy in textile industry requires development of new technologies to reduce water consumption as well as negative environmental impact of discharged wastewater. Advanced oxidation processes (AOPs) are the most promising technology for decolorization and mineralization of wastewater contamination. This paper presents the results of ozonation, Fenton’s oxidation and H
Cementitious Plates Containing TiO2-N,C Photocatalysts for NOx Degradation
Authors: Janus Magdalena , Zając Kamila , Zatorska Justyna , Kusiak-Nejman Ewelina , Czyżewski Adam , Morawski Antoni W. 
Published: December 2016

AbstractStudies of photocatalytic decomposition of NOx on cementitious plates modified by TiO
Lignin Degradation Through A Combined Process of Ionizing Irradiation and A Biological Treatment
Authors: Estrella Raúl , Muñoz Florinella , Vasco Catalina 
Published: December 2016

AbstractIn this work, the degradation of lignin was studied through a combined process of ionizing irradiation and a biological treatment. For the irradiation stage, two options were tested at the beginning: a gamma irradiation from a Cobalt source at a dose rate of 0.4 kGy/h and a beta irradiation from a linear electron accelerator at a dose rate of 827 kGy/h, in both cases for a dose of 10 kGy. Through UV-visible spectrophotometric scanning, we found better results for the lignin degradation by the beta irradiation; therefore, five higher doses: 20, 30, 40, 50 and 60 kGy were tested. Spectrophotometry, infrared spectrometry and waste water analysis allowed to determine 60 kGy as the best dose. Finally, an anaerobic biological treatment was used for the subsequent degradation of lignin. It was carried out as a batch process that lasted approximately 11 days. The combined process enhanced the BOD
Catalytic Decomposition of Analgin Pharmaceutical Wastewater in Supercritical Water
Authors: Feng Caiting , Yang Lixia 
Published: December 2016

AbstractIn this paper, hydrogen production by catalytic treatment of analgin pharmaceutical wastewater was systematically investigated in supercritical water (SCW) with a continuous reactor for the first time. The effect of sodium salts on the decomposition of analgin pharmaceutical wastewater in supercritical water was investigated in a continuous reactor. The results showed that NaHCO
Preparation of Calcium Titanate Based on the Cotton Template Method and its Simultaneous Removal Performance to Heavy Metals and Organic Pollutants in Water
Authors: Zhang Dong , Liu Shi-yu , Song Xu , Xu Zhen-yu , Yang Bing , Chen Lei-yang , Tan Yi-chuan , Li Fu-jia 
Published: December 2016

AbstractAdopting cotton as the bio-templates, calcium titanate with special morphology (CTCTO) was produced by solgel template method and characterized by XRD, SEM, BET and FTIR. The adsorption and photocatalytic performance had been studied. At the same time, the ability of CTCTO for removing heavy metals in complexing and the chemical oxygen demand (COD
Decomposition Characteristics of Benzene, Toluene and Xylene in an Atmospheric Pressure DC Corona Discharge II. Characteristics of Deposited By-products and Decomposition Process
Authors: Sakai Seiji , Takahashi Kazuhiro , Satoh Kohki , Itoh Hidenori 
Published: December 2016

AbstractGaseous by-products and deposited material obtained from the decomposition of benzene, toluene and xylene in an atmospheric pressure DC corona discharge were minutely investigated by gas chromatograph mass spectrometry and infrared absorption spectroscopy, and the decomposition processes of benzene, toluene and xylene were estimated. It was found that carbon dioxide (CO
High Temperature Oxidation Behavior of Arc-sprayed FeCrBAlMo Coating
Authors: Zhang Xin , Wang Zehua , Lin Jinran 
Published: December 2016

AbstractFeCrBAlMo coating was deposited on an AISI 20 steel substrate by high velocity arc spraying (HVAS). Compared with FeCrBSiMo coating and pristine AISI 20 steel, the microstructure and high temperature oxidation behavior of FeCrBAlMo coating were investigated by optical microscopy, scanning electron microscopy, energy-dispersive spectroscopy and X-ray diffraction. Meanwhile, the bonding strength of the coatings was also measured. The results indicated that both coatings were composed of α(Fe,Cr) and Fe
Photocatalytic Performance of Anion Doped TiO2 on the Degradation of Complex Organic Matrix
Authors: Birben Nazmiye Cemre , Uyguner-Demirel Ceyda Senem , Sen-Kavurmaci Sibel , Gürkan Yelda Yalçın , Türkten Nazlı , Kılıç Murat , Çınar Zekiye , Bekbolet Miray 
Published: December 2016

AbstractTiO
Degradation of Organoarsenicals by Heterogeneous Photocatalysis using ZnO, TiO2 and UVA
Authors: Miranda C. , Santander P. , Matschullat J. , Daus B. , Yáñez J. , Mansilla H. D. 
Published: December 2016

AbstractThe oxidation of phenylarsine oxide (PhAsO) and cacodylic acid (CA) by UV-A assisted heterogeneous photocatalysis using ZnO and TiO
Aqueous Benzene Oxidation in Low-Temperature Plasma of Pulsed Corona Discharge
Authors: Kornev Iakov , Preis Sergei 
Published: December 2016

AbstractWastewaters polluted with non-biodegradable volatile organic compounds (VOCs), such as aromatic substances, present a growing problem meeting no adequately affordable technological response. Low-temperature plasma generated in the gas-phase pulsed corona discharge (PCD) presents competitive advanced oxidation technology in abatement of various classes of pollutants, although the process parameters, the pulse repetition frequency and the liquid spray rate, require optimization. The experimental research into aqueous benzene oxidation with PCD was undertaken to establish the impact of the parameters to the energy efficiency. The oxidation reaction was found under the experimental conditions to mostly proceed in the gas phase showing little influence of the pulse repetition frequency and the gas-liquid contact surface. Oxidation of benzene and, presumably, other volatile pollutants in the volume of PCD reactor compartment presents an effective strategy of aqueous VOCs abatement.
A modified hydrodynamic model for routing unsteady flow in a river having piedmont zone
Authors: Patowary Sudarshan , Sarma Arup Kumar 
Published: December 2016

Abstract
Existence of piedmont zone in a river bed is a critical parameter from among numerous variations of topographical, geological and geographical conditions that can significantly influence the river flow scenario. Downstream flow situation assessed by routing of upstream hydrograph may yield higher flow depth if existence of such high infiltration zone is ignored and therefore it is a matter of concern for water resources planning and flood management. This work proposes a novel modified hydrodynamic model that has the potential to accurately determine the flow scenario in presence of piedmont zone. The model has been developed using unsteady free surface flow equations, coupled with Green-Ampt infiltration equation as governing equation. For solution of the governing equations Beam and Warming implicit finite difference scheme has been used. The proposed model was first validated from the field data of Trout Creek River showing excellent agreement. The validated model was then applied to a hypothetical river reach commensurate with the size of major tributaries of Brahmaputra Basin of India. Results indicated a 10% and 14% difference in the maximum value of discharge and depth hydrograph in presence and absence of piedmont zone respectively. Overall this model was successfully used to accurately predict the effect of piedmont zone on the unsteady flow in a river.
ADMA, SDMA and L-Arginine may be Novel Targets in Pharmacotherapy for Complications due to Cardiopulmonary Bypass
Authors: Kahraman Aydın , Mutlu Emre , Aldağ Mustafa 
Published: December 2016

SummaryBackground:In this study, the effects of olmesartan therapy on asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), L-arginine and inducible nitric oxide synthase (iNOS) levels were investigated in patients undergoing cardiopulmonary bypass.Methods:Patients were randomly allocated to two groups, control and olmesartan. Olmesartan was administered 30 mg once a day beginning from preoperative day 5 to postoperative day 28 and on operation day. Blood was drawn from all patients and ADMA, SDMA, L-arginine and iNOS levels were analyzed at six time points (T1: before anesthesia induction, T2: during cardiopulmonary bypass, T3: five min after the cross-clamp was removed, T4: after protamine infusion, T5: on postoperative day 3 and T6: on postoperative day 28).Results:In the olmesartan treated group, iNOS levels exhibited significant decreases at T2, T3, T4, T5 and T6 time points compared with control group (p<0.001, p<0.05, p<0.001, p<0.01, p<0.05 respectively). ADMA levels were significantly lower in olmesartan treated group than in control group at T3, T4, T5 and T6 time points (p<0.05, p<0.05, p<0.05, p<0.01 respectively). SDMA levels at T2, T3 and T6 time points were higher in control group than olmesartan group. L-Arginine levels were significantly higher at T2 and T3 time points in olmesartan treated group than control group (p<0.001, p<0.01).Conclusions:It was concluded that administration of olmesartan reduced plasma ADMA, SDMA, iNOS levels and enhanced L-arginine level in CPB time and it could reduce potential postoperative complications through reducing oxidative stress and inflammatory response in the postoperative period after coronary bypass surgery.
Sexual differences in destructive capability and midgut enzyme activities in adult variegated grasshoppers Zonocerus variegatus (LINNAEUS, 1758) (Orthoptera: Pyrgomorphidae)
Authors: Ademolu Kehinde O. , Olusunmade Elijah , Adelabu Blessing , Idowu Adewunmi B. 
Published: December 2016

AbstractThe variegated grasshopper Zonocerus variegatus is a polyphagous insect, feeding on numerous food and cash crops. The present study aimed to investigate the sexual variations in the destructive capability of the adult insects and the composition of leaves damaged by them, as well as in the levels of midgut microbial flora and digestive enzymes (cellulase, amylase and α-glucosidase). The results showed that females consumed and caused more damage to cassava leaves than their male congeners. The leaves damaged by males contained more nutrients than those damaged by females. The gut microbial flora and enzyme assay showed that females had significantly larger colony forming units and a non-significant difference in enzyme activities. It can thus be concluded that adult females are more destructive than males.