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Michael J Zvolensky, Jafar Bakhshaie, Peter J Norton, Jasper A J Smits, Julia D Buckner, Lorra Garey, Kara Manning
It is widely recognized that smoking is related to abdominal pain and discomfort, as well as gastrointestinal disorders. Research has shown that visceral sensitivity, experiencing anxiety around gastrointestinal sensations, is associated with poorer gastrointestinal health and related health outcomes. Visceral sensitivity also increases anxiety symptoms and mediates the relation with other risk factors, including gastrointestinal distress. No work to date, however, has evaluated visceral sensitivity in the context of smoking despite the strong association between smoking and poor physical and mental health...
June 20, 2017: Addictive Behaviors
Hamid Asiabi, Yadollah Yamini, Maryam Shamsayei
In this study, a new strategy for highly selective and extremely efficient removal of toxic oxyanions (Cr(VI), Se(VI), and As(V)) from aqueous solutions using zwitterionic glycine intercalated layered double hydroxide (Gly-LDH) was reported. Hence, to investigate the effect of zwitterionic glycine on the adsorption capacity, selectivity factor and adsorption mechanism of LDHs, two NiAl LDHs intercalated with different inter-layer anions, including NO3(-) and glycine, were synthesized. The obtained results show that the adsorption capacity and selectivity factor of oxyanions through ion exchange mechanism in NO3-LDH is lower than Gly-LDH...
June 21, 2017: Journal of Hazardous Materials
Daria Ruth Galimberti, Alberto Milani, Matteo Tommasini, Chiara Castiglioni, Marie-Pierre Gaigeot
Four models for the calculation of the IR spectrum of gas phase molecules and clus- ters from molecular dynamics simulations are presented with the aim to reduce the computational cost of the usual Fourier transform (FT) of the time correlation function of the dipole moment. These models are based on the VDOS, FT of time correlation function of velocities, and Atomic Polar Tensors (APT). The models differ from each other by the number of APTs inserted into the velocities correlation function. Excellent accuracy is achieved by the model adopting a weighted linear combination of a few se- lected APTs adapted for the rotation of the molecule (model D)...
June 27, 2017: Journal of Chemical Theory and Computation
Liu Leo Liu, Levy L Cao, Yue Shao, Douglas W Stephan
Single electron transfer (SET) reactions are effected by the combination of a Lewis acid (e.g. E(C6F5)3 E = B or Al) with a small molecule substrate and decamethylferrocene (Cp*2Fe). Initially, the corresponding reactions of (PhS)2 and (PhTe)2 were shown to give the species [Cp*2Fe][PhSB(C6F5)3] 1 and [Cp*2Fe][(-PhS)(Al(C6F5)3)2] 2 and [Cp*2Fe][(-PhTe)(Al(C6F5)3)2] 3, respectively. Analogous reactions with di-tert-butyl peroxide yielded [Cp*2Fe][(-HO)(B(C6F5)3)2] 4 with isobutene while with benzoyl peroxide afforded [Cp*2Fe][PhC(O)OE(C6F5)3] (E = B 5, Al 6)...
June 27, 2017: Journal of the American Chemical Society
Jung-Woo Seo, Haena Moon, Se-Yun Kim, Ju-Young Moon, Kyung Hwan Jeong, Yu-Ho Lee, Yang-Gyun Kim, Tae-Won Lee, Chun-Gyoo Ihm, Chan-Duck Kim, Byung Ha Chung, Yeong Hoon Kim, Sang Ho Lee
Urinary mRNA analysis with three-gene set (18S rRNA, CD3ε, and IP-10) has been suggested as a non-invasive biomarker of acute rejection (AR) in kidney transplant recipients using quantitative real-time PCR (qPCR). Application of droplet digital PCR (ddPCR), which has been suggested to provide higher sensitivity, accuracy, and absolute quantification without standard curves, could be a useful method for the quantifying low concentration of urinary mRNA. We investigated the urinary expression of these three genes in Korean patients with kidney transplantation and also evaluated the usefulness of ddPCR...
2017: PloS One
David K A Barnes, Chester J Sands
High latitude benthos are globally important in terms of accumulation and storage of ocean carbon, and the feedback this is likely to have on regional warming. Understanding this ecosystem service is important but difficult because of complex taxonomic diversity, history and geography of benthic biomass. Using South Georgia as a model location (where the history and geography of benthic biology is relatively well studied) we investigated whether the composition of functional groups were critical to benthic accumulation, immobilization and burial pathway to sequestration-and also aid their study through simplification of identification...
2017: PloS One
Katarzyna Hąc-Wydro, Michał Flasiński, Marcin Broniatowski, Monika Sołtys
Effective application of the essential oils requires detailed exploration of their mechanism of action and the origin of diverse activity of their components. In this work, the influence of eucalyptol and terpinen-4-ol on artificial membranes was studied to verify whether the differences in the activity of these compounds are related to their effect on membranes. The properties of monolayers formed from structurally different lipids in the presence of terpenes were examined based on the results of the surface pressure-area measurements, penetration studies, and Brewster angle microscopy experiments...
June 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
Molly J Henry, Björn Herrmann, Dunja Kunke, Jonas Obleser
Healthy aging is accompanied by listening difficulties, including decreased speech comprehension, that stem from an ill-understood combination of sensory and cognitive changes. Here, we use electroencephalography to demonstrate that auditory neural oscillations of older adults entrain less firmly and less flexibly to speech-paced (∼3 Hz) rhythms than younger adults' during attentive listening. These neural entrainment effects are distinct in magnitude and origin from the neural response to sound per se...
June 27, 2017: Nature Communications
Joey Rawson, Adam Siade, Jing Sun, Harald Neidhardt, Michael Berg, Henning Prommer
Over the last few decades, significant progress has been made to characterize the extent, severity, and underlying geochemical processes of groundwater arsenic (As) pollution in S/SE Asia. However, comparably little effort has been made to merge the findings into frameworks that allow for a process-based quantitative analysis of observed As behavior and for predictions of its long-term fate. This study developed field-scale numerical modeling approaches to represent the hydrochemical processes associated with an in situ field injection of reactive organic carbon, including the reductive dissolution and transformation of ferric iron (Fe) oxides and the concomitant release of sorbed As...
June 27, 2017: Environmental Science & Technology
Hang Zeng, Ralph Weidner, Gereon R Fink, Qi Chen
Changes in the size of the attentional focus and task difficulty often co-vary. Nevertheless, the neural processes underlying the attentional spotlight process and task difficulty are likely to differ from each other. To differentiate between the two, we parametrically varied the size of the attentional focus in a novel behavioral paradigm while keeping visual processing difficulty either constant or not. A behavioral control experiment proved that the present behavioral paradigm could indeed effectively manipulate the size of the attentional focus per se, rather than affecting purely perceptual processes or surface processing...
June 27, 2017: Human Brain Mapping
Lakshmi Balakrishnan, Donna Rennie, James Dosman, Punam Pahwa, Chandima Karunanayake, Louise Hagel, Joshua Lawson
BACKGROUND AND OBJECTIVE: The relationship between farming exposures and pulmonary function in a rural paediatric population was evaluated. METHODS: Baseline data collection records of the Saskatchewan Rural Health Study (SRHS), a population-based study, were used. A subset of children (6-14 years old) participated in clinical testing, including anthropometric measures and pulmonary function testing (PFT), using spirometry (n = 584). PFTs followed ATS criteria and all statistical analyses were controlled for age, sex and height...
June 27, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
Valentina D A Corino, Eros Montin, Antonella Messina, Paolo G Casali, Alessandro Gronchi, Alfonso Marchianò, Luca T Mainardi
PURPOSE: To assess the feasibility of grading soft tissue sarcomas (STSs) using MRI features (radiomics). MATERIALS AND METHODS: MRI (echo planar SE, 1.5T) from 19 patients with STSs and a known histological grading, were retrospectively analyzed. The apparent diffusion coefficient (ADC) maps, obtained by diffusion-weighted imaging acquisitions, were analyzed through 65 radiomic features, intensity-based (first order statistics, FOS) and texture (gray level co-occurrence matrix, GLCM; and gray level run length matrix, GLRLM) features...
June 27, 2017: Journal of Magnetic Resonance Imaging: JMRI
Monique Grommé, Henk Russcher, Eric Braakman, J Henriëtte Klinkspoor, Johan A Dobber, Inge de Greef, Norbert C J de Wit
BACKGROUND: CD34 flow cytometry is the gold standard for stem cell enumeration in peripheral blood at the mobilization stage and in the final apheresis product. The new stem cell mode of the Sysmex XN Series analyzer enumerates an immature cell population in the white progenitor and pathological cell (WPC) channel, based on the cell size, internal cellular complexity, and fluorescence intensity. STUDY DESIGN AND METHODS: In this multicenter study we analyzed 147 peripheral blood samples, 22 samples during collection of stem cells, and 45 samples from the apheresis product of 18 healthy allogeneic donors and 84 autologous patients...
June 26, 2017: Transfusion
Hattie L Ring, Jinjin Zhang, Nathan D Klein, Lynn E Eberly, Christy L Haynes, Michael Garwood
PURPOSE: Iron-oxide nanoparticles (IONPs) have shown tremendous utility for enhancing image contrast and delivering targeted therapies. Quantification of IONPs has been demonstrated at low concentrations with gradient echo (GRE) and spin echo (SE), and at high concentrations with echoless sequences such as swept imaging with Fourier transform (SWIFT). This work examines the overlap of IONP quantification with GRE, SE, and SWIFT. METHODS: The limit of quantification of GRE, SE, inversion-recovery GRE, and SWIFT sequences was assessed using IONPs at a concentration range of 0...
June 26, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
Kadayanallur Mahadevan Prabusankarlal, Palanisamy Thirumoorthy, Radhakrishnan Manavalan
A method using rough set feature selection and extreme learning machine (ELM) whose learning strategy and hidden node parameters are optimized by self-adaptive differential evolution (SaDE) algorithm for classification of breast masses is investigated. A pathologically proven database of 140 breast ultrasound images, including 80 benign and 60 malignant, is used for this study. A fast nonlocal means algorithm is applied for speckle noise removal, and multiresolution analysis of undecimated discrete wavelet transform is used for accurate segmentation of breast lesions...
April 2017: Journal of Medical Imaging
Yoshinori Kayashima, Kazuhiko Yamamuro, Manabu Makinodan, Yoko Nakanishi, Akio Wanaka, Toshifumi Kishimoto
A number of studies have indicated that relaxing and pleasant melodies are useful for the treatment of patients with psychiatric disorders, including schizophrenia, depression, and dementia. However, few studies have investigated what constitutive elements of the music had an effect on brain activity. As Canon chord progression is one of critical elements for pleasant melodies, we sought to examine the effects of Canon chord progression and pitch-shifted Canon chord progression on brain activity using performance on the auditory oddball task during event-related potentials (ERPs) in 30 healthy subjects...
2017: Neuropsychiatric Disease and Treatment
Hao-Han Yu, Ling Zhang, Shuai Xu, Fang Li, Fan Yu, Zheng-Ya Liu, Li Huang, Ji-Hua Chen
This study was to evaluate the effect of Epigallocatechin-3-gallate (EGCG) on the bond strength of two adhesive systems to the Sodium hypochlorite (NaOCl) treated intraradicular dentin. The roots were accepted regular root canal treatments and post space preparations, and further divided into eight groups according to the four post space pretreatments and two dentin adhesives [Single Bond 2 (SB2) and Clearfil SE Bond (CSB)] used. The push-out strength before and after thermocycling in different root region (coronal and apical), DC of the adhesive and morphologic patterns of treated post space were evaluated...
June 26, 2017: Scientific Reports
Masahiro Mitsuboshi, Yuuzou Kioka, Katsunori Noguchi, Susumu Asakawa
Volume 31, No. 3, Page 307-313, 2016Page 310, Legend for Fig. 4 IncorrectFig. 4. Growth degree of Fusarium oxysporum f. sp. spinaciae for organic fertilizers at each dilution based on an estimation of the ellipse area (A) and extension length (B) of the colony. Cont, compound inorganic fertilizer; SBM, steamed bone meal; CDC, cow dung compost; MI, microbial inoculant. Values show mean of medians of degrees with SE (n=3). The ellipse area and extension length for control plates were 4,475 mm(2) and 36.5 mm, respectively...
2017: Microbes and Environments
Hanna Mikola, Katja Pahkala, Harri Niinikoski, Tapani Rönnemaa, Jorma S A Viikari, Antti Jula, Markus Juonala, Olli T Raitakari
Children who are obese or have familial hypercholesterolemia have stiffer arteries compared with lean, healthy peers. Limited data are, however, available on the association of cardiometabolic risk markers and arterial distensibility in healthy children, particularly in a longitudinal setting. Therefore, we studied in the prospective STRIP (Special Turku Coronary Risk Factor Intervention Project) comprising healthy, predominantly normal weight participants the association of several cardiometabolic and dietary risk markers with arterial distensibility from childhood to early adulthood...
June 26, 2017: Hypertension
Carlos A Rubio
BACKGROUND/AIM: Histology in protracted ulcerative colitis (UC) discloses high numbers of chronic inflammatory cells and crypts with architectural distortions. In severe cases, ulcerations are frequently found. The histogenesis of colonic crypts with architectural distortions in UC remains elusive. A recent review of colectomy specimens from patients with UC revealed crypts surrounding mucosal ulcerations exhibiting severe architectural distortions. They were called corrupted colonic crypts, CCCs...
July 2017: In Vivo
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