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Sun Jian J State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China. - - 2014
We report a direct one-pot approach, employing 11-mercaptoundecanoic acid (11-MUA) as a reducing and capping agent, for the preparation of fluorescent Ag/Au bimetallic nanoclusters (Ag/AuNCs) from HAuCl4 and AgNO3 in basic aqueous solution at room temperature. Unlike the monocomponent 11-MUA-AgNCs with negligible fluorescence, the as-prepared 11-MUA-Ag/AuNCs exhibit similar average diameters ...
Rutty Michelle M University of Waterloo, Waterloo, Canada, - - 2014
The largest market segment of global tourism is coastal tourism, which is strongly dependent on the destination's thermal climate. To date, outdoor bioclimatic comfort assessments have focused exclusively on local residents in open urban areas, making it unclear whether outdoor comfort is perceived differently in non-urban environments or by non-residents ...
Caruso Nicholas M NM Department of Biology, University of Maryland, College Park, MD, 20742, USA; Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, - - 2014
Reduction in body size is a major response to climate change, yet evidence in globally imperiled amphibians is lacking. Shifts in average population body size could indicate either plasticity in the growth response to changing climates through changes in allocation and energetics, or through selection for decreased size where energy ...
Sakr Mahmoud E M ME Laser Science and interactions Department, National Institute of Laser enhanced science (NILES), Cairo University, 12316, - - 2014
Fluorescence enhancement monitoring of pyrromethene laser dyes using their complexation with Ag nanoparticles (Ag NPs) was studied. The size of the prepared Ag NPs was determined by transmission electron spectroscopy and UV/Vis absorption spectroscopy. Mie theory was also used to confirm the size of NPs theoretically. The effect of different ...
Zheng Yu - - 2014
The real-time conformational changes of cytosine (C)-rich ssDNA oligonucleotides upon binding with silver ions (Ag+) were studied using dual polarization interferometry (DPI). Upon the addition of Ag+, Ag+ could selectively bind to cytosine-cytosine mismatches and formed C-Ag+-C complexes, inducing change of the structure of the C-rich ssDNA from random coil ...
Guo Weiwei W The Institute of Chemistry, The Center for Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel. - - 2014
DNA hydrogels, consisting of Y-shaped nucleic acid subunits or of nucleic acid-functionalized acrylamide chains, undergo switchable gel-to-solution transitions. The Ag(+)-stimulated formation of cytosine-Ag(+)-cytosine complexes results in the crosslinking of the units to yield the hydrogels, while the cysteamine-induced elimination of the Ag(+) ions dissociates the hydrogels into a solution phase.
Urban Karli K Department of Family and Community Medicine, University of Missouri, Columbia, MO, - - 2014
An age-adjusted D-dimer cutoff--rather than the conventional 500 mcg/L value--is a better way to rule out VTE in patients over 50.
Kemp Jennifer J Laboratoire de Neurosciences Cognitives et Adaptatives, UMR 7364, Université de Strasbourg, CNRS, Strasbourg, - - 2014
Aging is associated with changes in thermosensitivity and decreases in the functionality of the autonomic thermoregulation. The underlying mechanisms are, however, not fully understood. Elderly subjects may undergo functional changes in the integration process of the thermal sensory system, especially in their thermal adaptation capacities. To verify this hypothesis, we ...
Debowska Malgorzata M Department for Mathematical Modelling of Physiological Processes, Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, - - 2014
Creatinine clearance scaled to body surface area (BSA) and urea KT/V normalized to total body water (TBW) are used as indices for peritoneal dialysis (PD) adequacy. We investigated relationships of indices of dialysis adequacy (including KT/V, KT, clearance, dialysate over plasma concentration ratio) and anthropometric and body composition parameters (BSA, ...
Lin Jia-Hui JH Department of Chemistry, National Sun Yat-sen University, 70 Lienhai Rd., Kaohsiung 80424, Taiwan. - - 2014
This study presents a single, resettable, and sensitive molecular beacon (MB) used to operate molecular-scale logic gates. The MB consists of a random DNA sequence, a fluorophore at the 5'-end, and a quencher at the 3'-end. The presence of Hg(2+), Ag(+), and coralyne promoted the formation of stable T-Hg(2+)-T, C-Ag(+)-C, ...
Cheng Zhuhong Z State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China. - - 2014
We report a simple strategy for the fabrication of a highly selective and sensitive Hg(ii) chemosensor based on HMS-Ag composite functionalized rhodamine derivative (R). The prepared chemosensor HMS-Ag-R was characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), UV-vis spectrum and Fourier transform infrared spectroscopy (FT-IR). HMS-Ag-R has both ...
Bera Raj Kumar RK Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, - - 2014
The antimicrobial activity of fluorescent Ag nanoparticles of 1.5 nm (nAg-Fs) is demonstrated and compared with the other Ag nanoparticles of different shapes and size. The antimicrobial activity was evaluated using Gram-positive (Staphylococcus epidermidis NCIM2493 and Bacillus megaterium) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC27853 and Escherichia coli) and fungal strains ...
Martín-de-Carpi J J Unidad para el Cuidado Integral de la Enfermedad Inflamatoria Intestinal Pediátrica, Sección de Gastroenterología, Hepatología y Nutrición Pediátrica, Hospital Sant Joan de Déu, Barcelona, Spain. Electronic address: - - 2014
A growing incidence of pediatric IBD (PIBD) in southern Europe has been recently reported. The SPIRIT registry (1996-2009) confirmed these tendencies in Spain. Our aim is to obtain data from 1985 to 1995 and describe the complete picture of PIBD presentation changes in Spain in the last 25years. A retrospective ...
Yamane Takashi T Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18D, 752 36, Uppsala, Sweden, - - 2014
Although mating status affects future mating opportunities, the biochemical changes that occur in response to mating are not well understood. This study investigated the effects of mating status on the quantities of sex pheromone components found in whole-body extracts and volatile emissions of females of the rice leaf bug, Trigonotylus ...
Polo Friz Hernan H Internal Medicine, Medical Department, Vimercate Hospital, Vimercate, Italy. Electronic address: - - 2014
D-dimer is commonly used in the workup of suspected Pulmonary Embolism (PE), but its specificity decreases with age. We evaluated whether using a higher cutoff value for D-dimer could increase the test specificity without reducing its sensitivity for ruling-out PE in elderly and very elderly patients presenting to the Emergency ...
Meier Beat B Institute of Psychology, University of Bern Bern, Switzerland ; Center for Cognition, Learning and Memory, University of Bern Bern, - - 2014
In synaesthesia, stimuli such as sounds, words or letters trigger experiences of colors, shapes or tastes and the consistency of these experiences is a hallmark of this condition. In this study we investigate for the first time whether there are age-related changes in the consistency of synaesthetic experiences. We tested ...
Li Jing - - 2014
This study used a matrix game to explore adolescents' and young adults' flexibility of theory of mind (ToM) and to examine whether prediction could promote a person's ToM reasoning when the opponent's level of ToM changed during the course of the game. A total of 202 participants of different ages ...
Wang Chuanxi C China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University, Wuxi 214122, PR China. Electronic address: - - 2014
The fluorescent nanomaterials play an important role in cellular imaging. Although the synthesis of fluorescent metal nanoclusters (NCs) have been developing rapidly, there are many technical issues in preparing metal alloy NCs. Herein, we used a facile galvanic replacement reaction to prepare Ag/Au alloy NCs. The characterizations of UV, PL, ...
Ranchod Yamini K - - 2013
Many cross-sectional studies have investigated the relationship between neighborhood physical environment and physical activity. However, few studies have examined this relationship longitudinally, and no study has examined the association between change in objective measurements of physical activity resources and change in physical activity in adults. We used longitudinal data from ...
Collins Sean S National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW, United Kingdom. Electronic address: - - 2013
A radioactive solution of (111)Ag, standardised by the absolute measurement methods 4π(PC)-γ and 4π(LS)-γ coincidence counting at the National Physical Laboratory (NPL), was measured by two independently calibrated HPGe γ spectrometers in order to estimate the γ emission intensities and to determine the absolute intensity, with the aim of improving ...
Dou Xinyue - - 2013
A simple strategy has been developed to synthesize highly luminescent thiolated Au@Ag nanoclusters (NCs) by using Ag(i) ions to bridge small Au(i)-thiolate motifs on the weakly luminescent thiolated Au NCs, leading to the formation of large Au(i)/Ag(i)-thiolate motifs on the NC surface and thus generating strong luminescence via aggregation-induced emission.
Crop M J - - 2013
Recently the number of performed CT-angiographies to diagnose pulmonary embolism (PE) rised markedly, while the incidence of PE hardly increased. This low yield of CT-angiography leads to more patients exposed to radiation and higher costs. The diagnostic value of age, C-reactive protein (CRP) and D-dimer in PE was investigated. Additionally ...
Liu Xiao-Li - - 2013
Cubic Au-AgCdS core-shell nanostructures were synthesized through cation exchange method assisted by tributylphosphine (TBP) as a phase-transfer agent. Among intermediate products, Au-Ag core-shell nanocubes exhibited many high-order plasmon resonance modes related to the special cubic shape, and these plasmon bands red-shifted along with the increasing of particle size. The plasmon ...
Xu Wei - - 2014
Silver nanoparticles (Ag NPs) were green synthetized using xanthan gum (XG) dissolved in water as reducing and capping agent for the first time. The structure, morphology, and size of Ag NPs in XG aqueous solutions were investigated with UV-vis spectroscopy, transmission electron microscopy and Fourier transform infrared. The results indicated ...
Robert C - - 2013
There is limited published data on conformational changes in the forelimbs of growing foals. This study was designed to describe the changes in conformation of the carpus and distal forelimb from birth to weaning in foals of three different breeds. Evaluation of the conformation of the carpus, fetlock, pastern and ...
Zhu Jingjing - - 2013
An effective dual-emission fluorescent Ag nanoclusters (NCs)-based probe have been constructed for rapid and selective detection of cysteine (Cys) with tunable sensitivity. Electrostatically induced reversible phase transfer method is employed to synthesize Ag nanoclusters with tunable emission intensity at 430nm and 630nm by controlling molar ratio between Ag and glutathione. ...
Agati Giovanni - - 2013
A novel fluorescent approach to monitor the evolution of anthocyanins and derivatives in red wine was developed. Some red table wines and Port wine with different vintage years were first tested aiming to determine the ideal fluorescent conditions. The fluorescence contribution of both monomeric and polymeric anthocyanins was studied by ...
Nondahl David M - - 2013
The primary purpose of this study was to measure the 16-year change in peak compensated static acoustic admittance (Peak Ytm) in a population-based cohort of older adults, and to determine whether age was associated with any observed change in Peak Ytm. Other tympanometric measures also were taken and analyzed. Data ...
Rissel Chris C School of Public Health, University of Sydney, New South - - 2014
Objective: This study describes the prevalence of walking and cycling to work in New South Wales (NSW) from 2005-2010. It examines the demographic characteristics of those people walking and cycling to work and the association of walking and cycling with body mass index (BMI). Methods: Data from the NSW Continuous ...
Aadland Eivind - - 2013
Objective: To determine the relationship between change in physical activity level and change in directly measured maximal aerobic fitness in severely obese subjects participating in a 1-year lifestyle intervention, and to determine whether change in 6-min walk test (6MWT) could be used as an indicator of change in aerobic fitness. ...
Luik Annemarie I - - 2013
The rhythms of activity across the 24-h sleep-wake cycle, determined in part by the circadian clock, change with aging. Few large-scale studies measured the activity rhythm objectively in the general population. The present population-based study in middle-aged and elderly persons evaluated how activity rhythms change with age, and additionally investigated ...
Kodama Keita - - 2013
We examined changes in the growth and reproductive traits of dragonet Callionymus valenciennei concurrent with decrease in stock size in Tokyo Bay. Stock size in mid 2000s decreased to 14% of that recorded in early 1990s. The minimum standard length at which dragonet attain gonadal maturation was smaller in 2000s ...
Gómez Y - - 2013
Benefits and costs of parental care are expected to change with offspring development and lead to age-dependent coadaptation expressed as phenotypic (behavioural) matches between offspring age and parental reproductive stage. Parents and offspring interact repeatedly over time for the provision of parental care. Their behaviours should be accordingly adjusted to ...
Pey Jorge - - 2013
An intensive monitoring campaign was carried out in the harbor of Barcelona (Spain) to quantify the contribution of primary shipping emissions (PSE) on PM10. Chemical composition of inorganic species, as well as OC and EC, was completed, and a source apportionment analysis by Positive Matrix Factorization was conducted. Among the ...
Khantaw Thitima - - 2013
Cadmium sulfide quantum dots capped with cysteamine (Cys-CdS QDs) were demonstrated as a selective fluorescence probe for sensing of free trace silver ions. The fluorescence intensity of the Cys-CdS QDs can be enhanced only in the presence of free Ag(+) and the fluorescence spectrum was slightly red shift from the ...
Eren Erdem - - 2013
To evaluate the effects of hyperandrogenism on otoacoustic emission levels and the medial olivocochlear reflex in adult female subjects. Women have a hearing advantage over men. Otoacoustic emission levels tend to be higher in female subjects, in both newborns and adults. This discrepancy has been presumed to result from prenatal ...
Manoharan Vijayan - - 2013
Humic acid (HA) is one of the major components of the natural organic matter present in the environment that alters the fate and behavior of silver nanoparticles (Ag NPs). Transformation of Ag NPs happens upon interaction with HA, thereby, changing both physical and chemical properties. Fluorescence spectroscopy and scanning electron ...
Feng Liang - - 2013
Advanced glycation end products (AGEs) was implicated in the pathogenesis of endothelial dysfunction in diabetic vascular complications. Our previous study found that a novel compound 4,4'-diphenylmethane-bis(methyl) carbamate (CM1) from Cortex Mori (Morus alba L.) could attenuate AGEs-induced endothelial dysfunction. The present study was conducted to explore the possible protective mechanisms ...
Sanchez Washington Y - - 2013
ABSTRACT. Ultraviolet radiation from solar exposure is a key extrinsic factor responsible for premature skin aging (i.e., photo-aging). Recent advances using in vivo multiphoton tomography (MPT) demonstrate the efficacy of this approach to assess intrinsic and extrinsic skin aging as an alternative to existing invasive techniques. In this study, we ...
Muncaster S - - 2013
Wild Ballan wrasse Labrus bergylta were sampled monthly over 2 years in western Norway to identify the natural process of sex change in this species. Light microscopy of standard histological-stained and immunohistochemistry-treated gonad tissue showed that spermatogonial germ cells tended to proliferate around the periphery of the lamellae before filling into ...
El-Shekheby Heba A - - 2013
Based on chelation-enhanced fluorescence, a new fluorescent coumarin derivative probe 3(1-(7-hydroxy-4-methylcoumarin)ethylidene)hydrazinecarbodithioate for Hg(2+) , Ag(+) and Ag nanoparticles is reported. Fluorescent probe acts as a rapid and highly selective "off-on" fluorescent probe and fluorescence enhancement by factors 5 to12 times was observed upon selective complexation with Hg(2+) , Ag(+) and ...
Jiang Shuang - - 2013
The metallic-structure dependent localized surface plasmons (LSPs) coupling behaviors with InGaN QWs in a green LED epitaxial wafer are investigated by optical transmission, scanning electron microscopy (SEM) and photoluminescence (PL) measurements. Ag nanoparticles (NPs) are formed by thermal annealing Ag layer on the green LED wafer. SEM images show that ...
Noh Bum-Young - - 2013
Surface plasmon (SP)-enhanced light emission mechanism has been investigated for the Ag-coated ZnO/Al2O3 core/shell nanorods (NRs). Structural characterizations showed that the ZnO NRs were covered by conformal Al2O3 layer and coated by Ag nanoparticles (NPs). The optical studies by photoluminescence (PL) showed abnormal variation of PL intensity with increasing the ...
Lents C A - - 2013
Gilts that reach puberty at an earlier age with more backfat have greater lifetime productivity. Increased growth rates generally promote earlier age at first estrus; however, an association of age at first estrus with discrete measures of body fatness remains controversial. We tested the hypothesis that metabolic state as determined ...
Ogle Christin M - - 2013
OBJECTIVE: Using longitudinal data, the present study examined change in midlife neuroticism following trauma exposure. METHOD: Our primary analyses included 670 participants (M age = 60.55, 65.22% male, 99.70% Caucasian) who completed the NEO Personality Inventory at mean age 42 and 50 and reported their lifetime exposure to traumatic events ...
Botosoa Eliot Patrick - - 2013
Front face fluorescence spectroscopy coupled with chemometric tools was used as a useful tool for the monitoring of sponge cakes freshness, produced at the pilot scale, during ageing (i.e. 1, 3, 6, 9, 16, and 20days). The fluorescence emission spectra were acquired in the 340-490nm and 390-680nm after excitation at ...
Ludvigsson Jonas F - - 2013
OBJECTIVES:The prevalence of celiac disease (CD) varies greatly, potentially because of incomplete ascertainment of cases and small study samples with limited statistical power. Previous reports indicate that the incidence of CD is increasing. We examined the prevalence of CD in a well-defined US county.METHODS:Population-based study in Olmsted County, Minnesota, USA. ...
Zheng Chunling - - 2013
An oxadiazole derivative(OXD) containing symmetrical pyridine-2-formamidophenyl-binded moiety was synthesised as fluorescence turn-on sensor OA1. Its ultraviolet-visible(UV-vis) and fluorescent spectra(FS) gave prominent fluorescence enhancement only for monovalent silver ion(Ag(+)) in HEPES buffer solution (10 mM, pH = 7.0, DMF-H2O, 9:1, v/v), which indicated the photo-induced electron transfer(PET) occurred from the donor of pyridine-2-formamidophenyl group ...
Hakulinen Christian - - 2013
Anger and hostility are key concepts in behavioral medicine, but little is known about their stability over life course. A sample of 3,074 individuals from six age groups (aged 15-30 at the baseline) were selected from a population-based study to examine longitudinal measurement invariance, stability and change in anger and ...
Wang Wan-Sheng - - 2013
A heterostructured Ag3PO4/AgBr/Ag plasmonic photocatalyst was prepared by a rational in situ ion exchange reaction between Ag3PO4 micro-cubes and Br- in aqueous solution followed by photoreduction. The photocatalytic activities of obtained photocatalysts were measured by the degradation of methyl orange (MO) and methylene blue (MB) under visible light irradiation (λ ...
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