bluuebunny/crossref_metadata_2025_split huggingface dataset:
Discrete Solitons and Bäcklund Transformation for the Coupled Ablowitz–Ladik Equations
Authors: Wu Xiao-Yu , Tian Bo , Liu Lei , Sun Yan 
Published: September 2017

Abstract
Under investigation in this paper are the coupled Ablowitz–Ladik equations, which are linked to the optical fibres, waveguide arrays, and optical lattices. Binary Bell polynomials are applied to construct the bilinear forms and bilinear Bäcklund transformation. Bright/dark one- and two-soliton solutions are also obtained. Asymptotic analysis indicates that the interactions between the bright/dark two solitons are elastic. Amplitudes and velocities of the bright solitons increase as the value of the lattice spacing increases. Increasing value of the lattice spacing can lead to the increase of both the bright solitons’ amplitudes and velocities, and the decrease of the velocities of the dark solitons. The lattice spacing parameter has no effect on the amplitudes of the dark solitons. Overtaking interaction between the unidirectional bright two solitons and a bound state of the two equal-velocity solitons is presented. Overtaking interaction between the unidirectional dark two solitons and the two parallel dark solitons is also plotted.
Silica-Based Coatings for Corrosion Protection of AA7075 Aluminum Alloy
Authors: Rêgo Galtiere C. , Bandeira Rafael M. , Aureliano Ricardo T. , Lombardi Amadeu N. , Casteletti Luiz C. , Totten George E. 
Published: September 2017

Abstract
The large economic and environmental impact caused by corrosion of metal structures has demanded new types of anti-corrosion coatings. This study proposes the application of silica-based coatings for corrosion protection of AA7075 aluminum alloy in saline environments rich in chloride ions. These coatings were obtained using the sol-gel technique. The samples were dip-coated in two types of solutions: (a) a mix of tetraethyl orthosilicate (TEOS) with 3-(Trimethoxysilyl)propyl methacrylate (TMPM) (Coating 1); and (b) a mix of titanium (IV) isopropoxide (TIP) with TMPM (Coating 2). The cure temperatures of the coatings were of 25°C, 60°C, 100°C, and 130°C, with treatment times of 1 and 3 hours. Characterization of the coatings was done by potentiodynamic polarization in aqueous saline solution (sodium chloride 3.5 %), nanoscratching, and scanning electron microscopy (SEM). The layers produced were uniform with good scratch resistance and with superior corrosion resistance when compared to the substrate.
Signatures of Somatic Inhibition and Dendritic Excitation in Auditory Brainstem Field Potentials
Authors: Goldwyn Joshua H. , McLaughlin Myles , Verschooten Eric , Joris Philip X. , Rinzel John 
Published: September 2017

Extracellular voltage recordings (Ve; field potentials) provide an accessible view ofin vivoneural activity, but proper interpretation of field potentials is a long-standing challenge. Computational modeling can aid in identifying neural generators of field potentials. In the auditory brainstem of cats, spatial patterns of sound-evokedVecan resemble, strikingly,Vegenerated by current dipoles. Previously, we developed a biophysically-based model of a binaural brainstem nucleus, the medial superior olive (MSO), that accounts qualitatively for observed dipole-likeVepatterns in sustained responses to monaural tones with frequencies >∼1000 Hz (Goldwyn et al., 2014). We have observed, however, thatVepatterns in cats of both sexes appear more monopole-like for lower-frequency tones. Here, we enhance our theory to accurately reproduce dipole and non-dipole features ofVeresponses to monaural tones with frequencies ranging from 600 to 1800 Hz. By applying our model to data, we estimate time courses of paired input currents to MSO neurons. We interpret these inputs as dendrite-targeting excitation and soma-targeting inhibition (the latter contributes non-dipole-like features toVeresponses). Aspects of inferred inputs are consistent with synaptic inputs to MSO neurons including the tendencies of inhibitory inputs to attenuate in response to high-frequency tones and to precede excitatory inputs. Importantly, our updated theory can be tested experimentally by blocking synaptic inputs. MSO neurons perform a critical role in sound localization and binaural hearing. By solving an inverse problem to uncover synaptic inputs fromVepatterns we provide a new perspective on MSO physiology.SIGNIFICANCE STATEMENTExtracellular voltages (field potentials) are a common measure of brain activity. Ideally, one could infer from these data the activity of neurons and synapses that generate field potentials, but this “inverse problem” is not easily solved. We study brainstem field potentials in the region of the medial superior olive (MSO); a critical center in the auditory pathway. These field potentials exhibit distinctive spatial and temporal patterns in response to pure tone sounds. We use mathematical modeling in combination with physiological and anatomical knowledge of MSO neurons to plausibly explain how dendrite-targeting excitation and soma-targeting inhibition generate these field potentials. Inferring putative synaptic currents from field potentials advances our ability to study neural processing of sound in the MSO.
Attention to Color Sharpens Neural Population Tuning via Feedback Processing in the Human Visual Cortex Hierarchy
Authors: Bartsch Mandy V. , Loewe Kristian , Merkel Christian , Heinze Hans-Jochen , Schoenfeld Mircea A. , Tsotsos John K. , Hopf Jens-Max 
Published: September 2017

Attention can facilitate the selection of elementary object features such as color, orientation, or motion. This is referred to as feature-based attention and it is commonly attributed to a modulation of the gain and tuning of feature-selective units in visual cortex. Although gain mechanisms are well characterized, little is known about the cortical processes underlying the sharpening of feature selectivity. Here, we show with high-resolution magnetoencephalography in human observers (men and women) that sharpened selectivity for a particular color arises from feedback processing in the human visual cortex hierarchy. To assess color selectivity, we analyze the response to a color probe that varies in color distance from an attended color target. We find that attention causes an initial gain enhancement in anterior ventral extrastriate cortex that is coarsely selective for the target color and transitions within ∼100 ms into a sharper tuned profile in more posterior ventral occipital cortex. We conclude that attention sharpens selectivity over time by attenuating the response at lower levels of the cortical hierarchy to color values neighboring the target in color space. These observations support computational models proposing that attention tunes feature selectivity in visual cortex through backward-propagating attenuation of units less tuned to the target.SIGNIFICANCE STATEMENTWhether searching for your car, a particular item of clothing, or just obeying traffic lights, in everyday life, we must select items based on color. But how does attention allow us to select a specific color? Here, we use high spatiotemporal resolution neuromagnetic recordings to examine how color selectivity emerges in the human brain. We find that color selectivity evolves as a coarse to fine process from higher to lower levels within the visual cortex hierarchy. Our observations support computational models proposing that feature selectivity increases over time by attenuating the responses of less-selective cells in lower-level brain areas. These data emphasize that color perception involves multiple areas across a hierarchy of regions, interacting with each other in a complex, recursive manner.
The Timing of Reward-Seeking Action Tracks Visually Cued Theta Oscillations in Primary Visual Cortex
Authors: Levy Joshua M. , Zold Camila L. , Namboodiri Vijay Mohan K. , Hussain Shuler Marshall G. 
Published: September 2017

An emerging body of work challenges the view that primary visual cortex (V1) represents the visual world faithfully. Theta oscillations in the local field potential (LFP) of V1 have been found to convey temporal expectations and, specifically, to express the delay between a visual stimulus and the reward that it portends. We extend this work by showing how these oscillatory states in male, wild-type rats can even relate to the timing of a visually cued reward-seeking behavior. In particular, we show that, with training, high precision and accuracy in behavioral timing tracks the power of these oscillations and the time of action execution covaries with their duration. These LFP oscillations are also intimately related to spiking responses at the single-unit level, which themselves carry predictive timing information. Together, these observations extend our understanding of the role of cortical oscillations in timing generally and the role of V1 in the timing of visually cued behaviors specifically.SIGNIFICANCE STATEMENTTraditionally, primary visual cortex (V1) has been regarded as playing a purely perceptual role in stimulus-driven behaviors. Recent work has challenged that view by showing that theta oscillations in rodent V1 may come to convey timed expectations. Here, we show that these theta oscillations carry predictive information about timed reward-seeking actions, thus elucidating a behavioral role for theta oscillations in V1 and extending our understanding of the role of V1 in decision making.
Visual Experience Shapes the Neural Networks Remapping Touch into External Space
Authors: Crollen Virginie , Lazzouni Latifa , Rezk Mohamed , Bellemare Antoine , Lepore Franco , Collignon Olivier 
Published: September 2017

Localizing touch relies on the activation of skin-based and externally defined spatial frames of reference. Psychophysical studies have demonstrated that early visual deprivation prevents the automatic remapping of touch into external space. We used fMRI to characterize how visual experience impacts the brain circuits dedicated to the spatial processing of touch. Sighted and congenitally blind humans performed a tactile temporal order judgment (TOJ) task, either with the hands uncrossed or crossed over the body midline. Behavioral data confirmed that crossing the hands has a detrimental effect on TOJ judgments in sighted but not in early blind people. Crucially, the crossed hand posture elicited enhanced activity, when compared with the uncrossed posture, in a frontoparietal network in the sighted group only. Psychophysiological interaction analysis revealed, however, that the congenitally blind showed enhanced functional connectivity between parietal and frontal regions in the crossed versus uncrossed hand postures. Our results demonstrate that visual experience scaffolds the neural implementation of the location of touch in space.SIGNIFICANCE STATEMENTIn daily life, we seamlessly localize touch in external space for action planning toward a stimulus making contact with the body. For efficient sensorimotor integration, the brain has therefore to compute the current position of our limbs in the external world. In the present study, we demonstrate that early visual deprivation alters the brain activity in a dorsal parietofrontal network typically supporting touch localization in the sighted. Our results therefore conclusively demonstrate the intrinsic role that developmental vision plays in scaffolding the neural implementation of touch perception.
“I Feel Like I Am Finding Peace”: Exploring the Use of a Combined Art Therapy and Adapted Seeking Safety Program with Refugee Support Groups
Authors: Ely Gretchen E. , Koury Samantha , Bennett Kim , Hartinger Cari , Green Susan , Nochajski Thomas 
Published: September 2017

This paper describes the creation and implementation of a trauma support group intervention which combined aspects of the Seeking Safety model with an art therapy technique in an effort to reduce trauma-related symptoms in a population of refugees. A preliminary assessment was carried out to evaluate the potential effectiveness of the combined approach with trauma-exposed refugees. Based on facilitator notes from 8 sessions of two women’s refugee groups and one men’s group, three themes were identified: mandala creation enhanced the Seeking Safety content, language barriers impacted the potential for implementation, and the trauma support group was a means of personal growth for participants. Reports from facilitators and participants also suggested a reduction in trauma-related symptoms and an increase in participant use of safe coping skills as a result of group participation. While additional research is needed, these exploratory results suggest that this combined approach holds promise for positively impacting trauma symptoms in trauma-exposed refugees.
Equine-Facilitated Therapy and Trauma: Current Knowledge, Future Needs
Authors: Staudt Marlys , Cherry Donna 
Published: September 2017

Equine-facilitated therapy (EFT) is a relatively new treatment for trauma and PTSD. EFT as well as animal assisted interventions in general have been introduced and implemented in mental health treatment for children and adults, though the research in support of these interventions has not kept up with practice. The purpose of this review is to examine the use of EFT for clients suffering from trauma/PTSD. Studies were included if PTSD/trauma was assessed and/or was measured as an outcome. A search of relevant databases resulted in nine peer-reviewed studies that met criteria. Studies are summarized and implications for future research are discussed. In general, findings suggest that EFT is a promising intervention for trauma/PTSD. Recommendations include a call for more research that includes veterans as well as for research that explicates the mechanisms by which EFT may be effective. Key words: trauma, PTSD, equine, equine therapy
Hepatite B e C: diagnóstico e tratamento
Authors: Viana Daniel Rodrigues , Veloso Nathalia Mundoco , Neto Osvaldo Carvalho , Papacosta Nicolas Garcia , Nunes Gabriel Martins , Guedes Virgílio Ribeiro 
Published: September 2017

INTRODUÇÃO: As hepatites virais são consideradas as principais doenças hepáticas, podendo levar a quadros mais graves, como a cirrose e o carcinoma hepatocelular, tornando-se um importante problema de saúde pública. Tem distribuição global com áreas de altos índices de endemicidade, sobretudo em países asiáticos. Os principais agentes envolvidos são os vírus da hepatite A, B, C, D, E. O vírus da hepatite B e C se destacam nesse meio devido à grande capacidade de cronificação. As formas de transmissão são basicamente através do contato com fluidos corporais infectados, através de transfusões sanguíneas, uso de drogas injetáveis, transmissão vertical, etc. METODOLOGIA: Trata-se de um artigo de revisão no qual, a partir das palavras “hepatite B” e “hepatite C”, foi realizado busca por periódicos nos bancos de dados: PubMed, Scielo, Portal Periódicos CAPES e Google acadêmico. CONCLUSÃO: As hepatites B e C podem se apresentar apenas de forma aguda, ou podem se cronificar. O diagnóstico geralmente é realizado tardiamente, pois, na grande maioria dos casos apresenta-se oligossintomáticas ou até mesmo assintomática. O diagnóstico é feito através de exames sorológicos e quantificação viral através do PCR. O tratamento é basicamente sintomático, porem nos casos crônicos, é indicado uso de medicações, como interferons peguilhados e análogos de nucleosideos.
Palavras-chave: Hepatites virais; Hepatite B; Hepatite C.
INTRODUCTION: Viral hepatitis are considered as one of the major liver diseases, being able to lead more severe outcomes, such as cirrhosis and hepatocellular carcinoma becoming an important public health problem. It has global distribution with areas of high endemicity, especially in Asian countries. The main agents involved are hepatitis A virus, B, C, D, E. The hepatitis B and C viruses stand out in the middle of a chronicling ability. As the transmission forms are basically through contact with infected body fluids, through blood transfusions, injecting drug use, vertical transmission, etc. METHODOLOGY: This is a review article, from the words "hepatitis B" and "Hepatitis C", was carried out by search for journals in databases: PubMed, Scielo, Portal Periodicos CAPES and Google academic. CONCLUSION: The hepatitis B and C can either be only a form of acute, or can be chronic. Therefore, the diagnosis is often late, since in the vast majority of cases it is oligosymptomatic or even asymptomatic. The diagnosis is made through serological tests and viral quantification through PCR. The treatment is basically with symptomatic, such as pegged interferon’s and nucleoside analogs.
Keywords: Viral hepatitis; Hepatitis B; Hepatitis C.
Urban stormwater inundation simulation based on SWMM and diffusive overland-flow model
Authors: Chen Wenjie , Huang Guoru , Zhang Han 
Published: September 2017

Abstract
With rapid urbanization, inundation-induced property losses have become more and more severe. Urban inundation modeling is an effective way to reduce these losses. This paper introduces a simplified urban stormwater inundation simulation model based on the United States Environmental Protection Agency Storm Water Management Model (SWMM) and a geographic information system (GIS)-based diffusive overland-flow model. SWMM is applied for computation of flows in storm sewer systems and flooding flows at junctions, while the GIS-based diffusive overland-flow model simulates surface runoff and inundation. One observed rainfall scenario on Haidian Island, Hainan Province, China was chosen to calibrate the model and the other two were used for validation. Comparisons of the model results with field-surveyed data and InfoWorks ICM (Integrated Catchment Modeling) modeled results indicated the inundation model in this paper can provide inundation extents and reasonable inundation depths even in a large study area.
Molecular Identification of Yeasts and Lactic Acid Bacteria Involved in the Production of Beninese Fermented Food Degue
Authors: Angelov Angel I. , Petrova Galya , Angelov Angel D. , Stefanova Petya , Bokossa Innocent Y. , Tchekessi Célestin K. C. , Marco Maria L. , Gotcheva Velitchka 
Published: September 2017

Background:Traditional Beninese fermented food Degue is widely consumed in Benin and other countries in West Africa. It was originally made from milk and millet flour, but currently other cereals are used as well. Nowadays, Degue production occurs by spontaneous fermentation in individual households and information about the microorganisms involved is currently limited.Objective:The microbiota of Degue from Benin has not been studied so far, but its growing production in the country sets a demand for revealing the biodiversity of the microbial population involved in the fermentation process in order to take future steps for development of industrial technology and offer products with improved quality and safety.Method:In the present study, yeast and lactic acid bacteria from raw materials for Degue production and from several Degue products were isolated and identified by molecular methods including RFLP and ITS1-5.8S-ITS2 rRNA gene sequence analysis in yeasts, and 16S rRNA gene sequence analysis in lactic acid bacteria.Results:Lactic acid bacteria isolates were assigned to eight species within the generaLactobacillus,Enterococcus,Pediococcus,StreptococcusandWeisella. Four species of yeasts were found in Degue:Cyberlyndnera fabianii,Candida glabrata,Kluyveromyces marxianus, andMeyerozyma caribbica.Conclusion:The microbial population revealed is unique to Beninese Degue and needs further characterization for development of defined starter cultures.
Synchronized Blasting Demolition of Workshop and Chimney Under Complicated Conditions
Authors: Zou Z. S. , Yang J. , Chen Z. Y. , He C. L. 
Published: September 2017

Introduction:
For technical renovation of the thermal plant, one frame structure workshop of 50,000 m2 construction area and one reinforcement concrete chimney of 150m height shall be demolished by blasting in the same time. The engineering environment is very complicated and the accommodation space for the structures collapse is limited. Therefore, the collapse sequence, direction, scope of the structures must be accurately controlled to ensure the safe operation of the adjacent generator unit and transformer station.

Methods:
By taking technical measures of theoretical analysis and numerical simulation etc., as well as research on structures collapse process and initiation system, it puts forward the technology of bidirectional folded collapse of the workshop and it uniquely adopts the initiation system that combined with “half-second delay inside drilling” and “millisecond delay outside drilling”.

Results and Conclusion:
Additionally, by using of the integrated vibration reduction technology in combination of the blasting ruins, buffer ditch and damping ditch, it has safely accomplished the blasting demolition work in high efficiency. Besides the blasting demolition vibration signal is collected and analyzed. The success of the blasting demolition will become valuable reference to other similar works.
Experiences from the Merger of Clinics in the Swedish Public Dental Service - the Employee Perspective
Authors: Gustafsson Christina Hassel , Östberg Anna-Lena 
Published: September 2017

Objectives:The purpose of this study was to investigate the experiences of employees regarding the merger of clinics within the Public Dental Service (PDS), Västra Götaland Region, Sweden.Methods:Employees (dentists, dental hygienists, dental nurses) affected by both administrative and geographical mergers of dental clinics answered a web-based survey about experiences and effects of the merger process (n = 99, 47%). The Swedish short-form version of “The Nordic Questionnaire for Psychological and Social Factors at Work” (QPSNordic), the QPSNordic-34+ was used. Chi-squared tests and logistic regression analyses were used.Results:Two thirds of the participants were aged ≥ 50 years. The respondents stated that the reasons for the merger were often made clear (78%). Satisfaction with and involvement in the merger process received lower scores (45%). Work was often perceived as stressful, irrespective of the merger. Job demands and engagement scored positively, but control at work was given a low score (one fifth stated fairly high or high control). Dentists (OR 5.9; 95%, CI 1.1-32.3), but not dental hygienists (OR 2.8; 95%, CI 0.9-9.0), indicated stress significantly more often than dental nurses (reference) (adjusted for age and gender).Conclusion:Employees in the Public Dental Service (PDS) in a Swedish region had mainly positive experiences after the merger of clinics; however, their involvement in the process was low. Work demands were perceived as high. These findings should be considered when planning mergers in dental organizations.