bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Primary Degradation and Decolourization of Dyes in Water by an H2O2/UV Advanced Oxidation Process
Authors: Menendez Amaia , Lombraña Jose Ignacio , de Luis Ana 
Published: November 2016

AbstractSynthetic dyes are extensively used in textile dyeing, paper printing, colour photography, pharmaceuticals, food, cosmetics and other industries. In spite of their diversity there are a certain number of properties common to many dye compounds, such as aromatic constitution, chromophore groups and others. Similarly to other dyes and due to the formation of colour intermediates, in the case of Rhodamine 6G colour capacity is maintained in the initial steps of dye degradation. For this reason in the degradation of a dye it is necessary to distinguish between two processes that take place simultaneously: dye removal and decolourization. This study was conducted by using a water solution of 50 mg/L of Rhodamine 6G (Rh-6G), as a model of a dye wastewater, in the hydrogen peroxide/UV system. The kinetic model proposed in this paper for the removing of Rh- 6G is a sequential first-order reaction. This model describes acceptably the changes in two kinds of compound for a wide interval of H
Degradation of n-Butyl tin Chlorides in Waters. A Comparative Assessment of the Process by Photo-assisted and Chemical- treatment Methods
Authors: Navio J. A. , Cerrillos C. , Macias M. 
Published: November 2016

AbstractThe degradation of aqueous n-butyl tin by several selected advanced oxidation technologies (AOTs) was studied and comparisons made between the processes. UV-photolytic and TiO
Solar Photocatalytic Process (TiO2 and Photo-Fenton) to Detoxify Effluents from Water-washed Spray Booths
Authors: Palacios Santiago , Santos-Juanes Lucas , Añó Enrique , Arques Antonio , Amat Ana M. 
Published: November 2016

AbstractEffluents from water-washed spray-booths have been treated by different solar-driven oxidative methods: TiO
Photocatalytic Mineralization of Azo Dyes Using Nanostructure ZnO Thin Film Coated on Glass Bead
Authors: Habibi Mohammad Hossein , Sardashti Mohammad Khaledi 
Published: November 2016

AbstractNanostructure ZnO thin films ZnO have been coated on glass bead by our novel centrifuge coating technique. The structure, surface and optical properties of the particles and thin films were characterized by XRD, SEM, AFM and UV/Vis techniques. The photoassisted degradation of four different azo textile dyes (C.I. Reactive Yellow 84 (HR), C.I. Reactive Red 195 (3BF), Erichrome blue black B (EBB) and Methyl orange (MO)) was examined in a batch reactor using nanostructure ZnO thin films on glass beads. The ZnO thin films loading of the glass bead was 0.23% (w/w). The amount of ZnO on the film was about the same the ZnO powder added in suspension to discolor the same solution of the same azo dyes used as a probe. Mineralization (TOC) of the azo textile dyes was attained within ca. 2 h of UV irradiation of the ZnO thin films glass bead/azo textile dye system. Mineralization kinetics was, in general, appreciably influenced by the pH and tends to be somewhat slower in alkaline or acidic media. Methyl orange was photomineralized more slowly than the others. Final products were, in all cases, CO
Autonomous Water Treatment Installation Energized from PV Panels
Authors: Komarzyniec Grzegorz , Stryczewska Henryka D. , Muszanski Robert 
Published: November 2016

AbstractLow temperature plasma generated by dielectric barrier discharge is well known source of active specious that can be applied in processes of water, air and soil treatment. Ozone generators can be energized from solar energy. The solution is specially advantageous in the regions with satisfactory solar radiation situated in remote terrains far from power network. Paper presents results of research carried out at the experimental stand as well as at the prototype of autonomous water treatment installation for domestic purposes, energized from photovoltaic panels.
Application of Fenton’s Reaction for Food-processing Wastewater Treatment
Authors: Dulova Niina , Trapido Marina 
Published: November 2016

AbstractDepending on the process type and raw materials involved, various types of wastewater are discharged from food industry. In the present study the feasibility of Fenton-based treatment, as a part of combined treatment schemes, to degrade high organic content, to eliminate suspended solids, and to improve the overall quality of food-processing plant wastewater was assessed. Fenton oxidation step used in treatment schemes improved significantly the quality of the effluent, enabling additional 62-79% and 53-69% reduction of chemical oxygen demand (COD) and dissolved organic carbon (DOC), respectively, when the H
Degradation of Acid Orange 7 Solution by Air-liquid Gliding Arc Discharge in Combination with TiO2 Catalyst
Authors: Chang-ming Du , Ya Xiong , Lu-Lu Zhang , Jing Wang , Shi-Guo Jia , Chuen-yu Chan , Tai-Hong Shi 
Published: November 2016

AbstractThe degradaiton of Acid Orange 7 (AO7) using the plasma-catalytic process, has been stdudied by non-thermal gliding arc technique coupled to P25 titanium dioxide (TiO
Antibacterial Activity Inhibition after the Degradation of Flumequine by UV/H2O2
Authors: Silva Caio Rodrigues da , Maniero Milena Guedes , Rath Susanne , Guimarães José Roberto 
Published: November 2016

AbstractFlumequine is a broad-spectrum antibacterial agent of the quinolone class widely used as veterinary drug in food-producing animals. It is considered as pseudo-persistent compound continuously introduced into the environment and its presence in the environment may contribute to the development of drug resistant bacterial strains. In this study antibacterial activity removal during flumequine degradation by UV/H
Comparison of the Effectiveness of Chlorine, Ozone, and Photocatalytic Disinfection in Reducing the Risk of Antibiotic Resistance Pollution
Authors: Öncü Nalan Bilgin , Menceloğlu Yusuf Ziya , Akmehmet Balcıoğlu Işıl 
Published: November 2016

AbstractEffectiveness of conventional chlorine and ozone disinfection on reduction of antibiotic resistance was compared with less commonly applied heterogeneous photocatalytic process. For this purpose plasmid DNA isolated from a multi-resistant Escherichia coli (E. coli) HB101 was treated in two different concentrations with the three oxidation processes. Oxidative damage on the plasmid DNA was analyzed with gel electrophoresis by comparing the extent of conformational changes in the DNA structure. The effectiveness of the applied oxidant in reducing the risk of resistance transfer was also evaluated by comparing the ability of treated plasmid DNA to transform competent cells. Chlorine did not affect plasmid DNA structure at the studied doses, while ozone and photocatalytic treatment resulted in conformational changes and the damage increased with increasing oxidant doses. Transformation experiments confirmed a similar trend. Chlorine did not affect the transformability and the cell counts of competent cells transformed with chlorine treated plasmid DNA were similar to those transformed by non-treated plasmid DNA in the control experiments.
Photocatalytic Removal of Reactive Black-5 Dye from Aqueous Solution by UV Irradiation in Aqueous TiO2: Equilibrium and Kinetics Study
Authors: Siboni Mehdi Shirzad , Samarghandi Mohamadreza , Yang Jae-Kyu , Lee Seung-Mok 
Published: November 2016

AbstractIn this work, photocatalytic oxidation of reactive Black-5(RB-5) dye was investigated with illuminated TiO
Photocatalytic and Self-cleaning Properties of Titania Coatings Prepared by Inkjet Direct Patterning of a Reverse Micelles Sol-gel Composition
Authors: Dzik Petr , Morozová Magdalena , Klusoň Petr , Veselý Michal 
Published: November 2016

AbstractAn optimized reverse micelles sol-gel composition was deposited by inkjet direct patterning onto glass supports. Experimental “material printer” Fujifilm Dimatix 2831 was used for sol patterning. Printing was repeated up to 4 times in wet-to-dry manner and photocatalytic coatings of various thickness were obtained after final thermal calcination. Basic material properties of prepared coating were studied by optical microscopy, electron and atomic force imaging, Raman, XRD and UV-VIS spectrometry. Photocatalytic activity was evaluated by dye and fatty acid degradation rate as well as photoinduced hydrophilic conversion rate. Reverse micelles proved to be viable synthetic route for the preparation of titania coatings with even structure and their compatibility with inkjet direct patterning deposition was demonstrated.
CFD Modeling of Fixed Photocatalytic Inserts for a Continuous Flow Reactor for Water Disinfection
Authors: Misstear David , Gill Laurence 
Published: November 2016

AbstractThe design of a suitable fixed photocatalytic support for water disinfection in a continuous flow reactor was researched. Computational fluid dynamics (CFD) was used to simulate the percentage of tracked particles coming into contact with the irradiated surface of different support geometries, cylindrical: conical and consecutive frusta and a spring. The number of particles striking each insert was presumed to give a good representation of the respective disinfection efficiencies of each design, as photocatalysis is effectively a surface phenomenon. It was found that a conical frustum design was more than three times as efficient as a similarly-sized conventional cylindrical insert with regard to this parameter, and arrangements of shorter frusta exhibited even more promising traits. A further regime of laboratory testing is proposed in order to determine the practical efficiency of the insert designs, which may have important applications in the solar disinfection of drinking water.
Decomposition of Toluene with Plasma-catalysis: A Review
Authors: Vandenbroucke Arne M. , Morent Rino , Geyter Nathalie De , Leys Christophe 
Published: November 2016

AbstractNon-thermal plasma (NTP) generated at atmospheric pressure has been widely applied to abate the harmful emission of gaseous pollutants such as volatile organic compounds (VOCs). These studies have proven the existence of some drawbacks that hinder commercialization, such as a low energy efficiency and mineralization degree with the formation of undesired byproducts as a consequence. Recently, NTP has successfully been combined with catalysis in an attempt to solve these issues through complex interacting mechanisms. Toluene can be regarded as being the most frequent studied VOC for removal with plasma-catalysis on laboratory scale. Therefore, this paper aims at reviewing the current research on this model VOC.
Semiconductor Mediated Photocatalysed Reaction of Two Selected Organic Compounds in Aqueous Suspensions of Titanium Dioxide
Authors: Mir Niyaz A. , Haque M.M. , Khan A. , Umar K. , Muneer M. , Vijayalakshmi S. 
Published: November 2016

AbstractSemiconductor mediated hydrogen peroxide-assisted photocatalytic degradation of two selected pesticide compounds, chloramben (1) and cyanazine (2) has been investigated in aqueous suspensions under a variety of conditions. The degradation was studied by monitoring the depletion in total organic carbon (TOC) content and decrease in substrate concentration as a function of irradiation time. The degradation kinetics of pesticide compounds 1 and 2 were investigated under different conditions such as type of TiO
Photocatalytic Treatment for Final Polishing of Wastewater from a Cellulosic Ethanol Process
Authors: RamMohan Gayathri , Goswami Tushar , Tian Zhuoli , Ingram Lonnie , Pullammanappallil Pratap 
Published: November 2016

AbstractAs a final polishing step, photocatalytic oxidation of anaerobically and aerobically treated lignocellulosic ethanol stillage was studied using titanium dioxide (TiO
Chronotopos. Erzählung, Zeit und Raum im Hellenismus
Authors: Maier Felix K. 
Published: November 2016

Zusammenfassung:Die Problematik, dass gleichzeitig stattfindende Ereignisse in Erzählungen nur sequentiell geschildert werden können, gehört zu einer der interessantesten Herausforderungen eines jeden Geschichtsschreibers. Allerdings wurde die Bedeutung dieser Frage erst explizit im Hellenismus diskutiert. Die vorliegende Untersuchung zeichnet wichtige Entwicklungsstufen nach und erörtert dabei, inwiefern zeitgeschichtliche Umstände einen wesentlichen Einfluss auf die jeweiligen Entscheidungen der antiken Historiographen ausübten, ihre Erzählung entweder in einer synchronen oder einer diachronen Narration zu gliedern.
Reflexiones sobre la probable promoción deCesse/Tarracoa colonia latina
Authors: Espinosa David Espinosa 
Published: November 2016

Resumen:El propósito del presente trabajo es evidenciar la necesidad de atribuir aCesse/Tarracoun estatuto jurídico-administrativo privilegiado con anterioridad a la fundación cesariana deColonia Urbs Triumphalis Tarracocon la finalidad de conciliar, de una forma satisfactoria, morfología urbana, protagonismo histórico y romanización cultural. A la luz de las recientes publicaciones sobre la probable existencia de un amplio programa de colonización latina enHispaniaen época republicana, se dan a conocer los resultados iniciales de investigación sobre un primer análisis de los indicios disponibles sobre la probable promoción deCesse/Tarracoa colonia latina.
Der Drei-Kapitel-Streit und die iustinianische Reconquista – Studien zum Widerstand der nordafrikanischen Kirche
Authors: Sandberg Matthias 
Published: November 2016

Zusammenfassung:
Die Nordafrikanische Kirche hat sich sowohl während der Herrschaft der Vandalen als auch nach der Rückeroberung durch Ostrom als bemerkenswert widerstandsfähig erwiesen. So erfolgreich Iustinians Rückeroberung Nordafrikas daher auch gewesen sein mag, sein Versuch des Ausgleiches zwischen den tief gespaltenen Kirchen des miaphysitischen Ostens und des chalcedonensischen Westens, muss als gescheitert betrachtet werden. Als ein Beleg dafür lässt sich das ausgeprägte (theologische) Autonomiestreben der Kirche Nordafrikas heranziehen; weder vandalische Repressionen noch kaiserliches Engagement vermochten dieses „traditionelle Selbstvertrauen“ zu brechen.
Scheinargumente bei MietspiegeldebatteWas definiert „moderne Mietspiegel“?
Authors: Kauermann Göran , Thomschke Lorenz , Braun Reiner 
Published: November 2016

Abstract:
The German Mietspiegel is a database to determine typical local market rents consisting of newly offered and ongoing contracts. Last year, the German government enacted a new law called „rental brake“, which caps rental prices of re-lettings at the level of a local Mietspiegel in declared areas. Prior to the rental brake, the Mietspiegel only affected rent increases for sitting tenants, whereas the Mietspiegel is now likewise material to initial rents.
This triggered a large and public debate on the proper methodology on creating a Mietspiegel and its database. Some authors call for asking prices as a new database and justify this modification with larger number of cases at little costs. Others supported the idea of an official rental databank. In our paper, we argue against such changes due to legal requirements and potential shortcomings of asking rents. Instead, we emphasize the need of adequate sampling and regression methods to create a Mietspiegel scientifically.
Parkin Deficiency Reduces Hippocampal Glutamatergic Neurotransmission by Impairing AMPA Receptor Endocytosis
Authors: Cortese Giuseppe P. , Zhu Mei , Williams Damian , Heath Sarah , Waites Clarissa L. 
Published: November 2016

Mutations in the gene encoding Parkin, an E3 ubiquitin ligase, lead to juvenile-onset Parkinson's disease by inducing the selective death of midbrain dopaminergic neurons. Accumulating evidence indicates that Parkin also has an important role in excitatory glutamatergic neurotransmission, although its precise mechanism of action remains unclear. Here, we investigate Parkin's role at glutamatergic synapses of rat hippocampal neurons. We find that Parkin-deficient neurons exhibit significantly reduced AMPA receptor (AMPAR)-mediated currents and cell-surface expression, and that these phenotypes result from decreased postsynaptic expression of the adaptor protein Homer1, which is necessary for coupling AMPAR endocytic zones with the postsynaptic density. Accordingly, Parkin loss of function leads to the reduced density of postsynaptic endocytic zones and to impaired AMPAR internalization. These findings demonstrate a novel and essential role for Parkin in glutamatergic neurotransmission, as a stabilizer of postsynaptic Homer1 and the Homer1-linked endocytic machinery necessary for maintaining normal cell-surface AMPAR levels.SIGNIFICANCE STATEMENTMutations in Parkin, a ubiquitinating enzyme, lead to the selective loss of midbrain dopaminergic neurons and juvenile-onset Parkinson's disease (PD). Parkin loss of function has also been shown to alter hippocampal glutamatergic neurotransmission, providing a potential explanation for PD-associated cognitive impairment. However, very little is known about Parkin's specific sites or mechanisms of action at glutamatergic synapses. Here, we show that Parkin deficiency leads to decreased AMPA receptor-mediated activity due to disruption of the postsynaptic endocytic zones required for maintaining proper cell-surface AMPA receptor levels. These findings demonstrate a novel role for Parkin in synaptic AMPA receptor internalization and suggest a Parkin-dependent mechanism for hippocampal dysfunction that may explain cognitive deficits associated with some forms of PD.
Distinct Neural Activities in Premotor Cortex during Natural Vocal Behaviors in a New World Primate, the Common Marmoset (Callithrix jacchus)
Authors: Roy Sabyasachi , Zhao Lingyun , Wang Xiaoqin 
Published: November 2016

Although evidence from human studies has long indicated the crucial role of the frontal cortex in speech production, it has remained uncertain whether the frontal cortex in nonhuman primates plays a similar role in vocal communication. Previous studies of prefrontal and premotor cortices of macaque monkeys have found neural signals associated with cue- and reward-conditioned vocal production, but not with self-initiated or spontaneous vocalizations (Coudé et al., 2011; Hage and Nieder, 2013), which casts doubt on the role of the frontal cortex of the Old World monkeys in vocal communication. A recent study of marmoset frontal cortex observed modulated neural activities associated with self-initiated vocal production (Miller et al., 2015), but it did not delineate whether these neural activities were specifically attributed to vocal production or if they may result from other nonvocal motor activity such as orofacial motor movement. In the present study, we attempted to resolve these issues and examined single neuron activities in premotor cortex during natural vocal exchanges in the common marmoset (Callithrix jacchus), a highly vocal New World primate. Neural activation and suppression were observed both before and during self-initiated vocal production. Furthermore, by comparing neural activities between self-initiated vocal production and nonvocal orofacial motor movement, we identified a subpopulation of neurons in marmoset premotor cortex that was activated or suppressed by vocal production, but not by orofacial movement. These findings provide clear evidence of the premotor cortex's involvement in self-initiated vocal production in natural vocal behaviors of a New World primate.SIGNIFICANCE STATEMENTHuman frontal cortex plays a crucial role in speech production. However, it has remained unclear whether the frontal cortex of nonhuman primates is involved in the production of self-initiated vocalizations during natural vocal communication. Using a wireless multichannel neural recording technique, we observed in the premotor cortex neural activation and suppression both before and during self-initiated vocalizations when marmosets, a highly vocal New World primate species, engaged in vocal exchanges with conspecifics. A novel finding of the present study is the discovery of a subpopulation of premotor cortex neurons that was activated by vocal production, but not by orofacial movement. These observations provide clear evidence of the premotor cortex's involvement in vocal production in a New World primate species.
Joint Encoding of Object Motion and Motion Direction in the Salamander Retina
Authors: Kühn Norma Krystyna , Gollisch Tim 
Published: November 2016

The processing of motion in visual scenes is important for detecting and tracking moving objects as well as for monitoring self-motion through the induced optic flow. Specialized neural circuits have been identified in the vertebrate retina for detecting motion direction or for distinguishing between object motion and self-motion, although little is known about how information about these distinct features of visual motion is combined. The salamander retina, which is a widely used model system for analyzing retinal function, contains object-motion-sensitive (OMS) ganglion cells, which strongly respond to local motion signals but are suppressed by global image motion. Yet, direction-selective (DS) ganglion cells have been conspicuously absent from characterizations of the salamander retina, despite their ubiquity in other model systems. We here show that the retina of axolotl salamanders contains at least two distinct classes of DS ganglion cells. For one of these classes, the cells display a strong preference for local over global motion in addition to their direction selectivity (OMS-DS cells) and thereby combine sensitivity to two distinct motion features. The OMS-DS cells are further distinct from standard (non-OMS) DS cells by their smaller receptive fields and different organization of preferred motion directions. Our results suggest that the two classes of DS cells specialize to encode motion direction of local and global motion stimuli, respectively, even for complex composite motion scenes. Furthermore, although the salamander DS cells are OFF-type, there is a strong analogy to the systems of ON and ON-OFF DS cells in the mammalian retina.SIGNIFICANCE STATEMENTThe retina contains specialized cells for motion processing. Among the retinal ganglion cells, which form the output neurons of the retina, some are known to report the direction of a moving stimulus (direction-selective cells), and others distinguish the motion of an object from a moving background. But little is known about how information about local object motion and information about motion direction interact. Here, we report that direction-selective ganglion cells can be identified in the salamander retina, where their existence had been unclear. Furthermore, there are two independent systems of direction-selective cells, and one of these combines direction selectivity with sensitivity to local motion. The output of these cells could assist in tracking moving objects and estimating their future position.