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Jason W Flindall, Claudia L R Gonzalez
Previous studies in our lab have described kinematic difference between grasp-to-eat and grasp-to-place movements, whereby participants produce smaller maximum grip apertures (MGAs) when grasping to bring the item to the mouth than when grasping to bring the item to a container near the mouth. This task difference is limited to right-handed movements, regardless of handedness; it has, therefore, been interpreted as evidence of left-hemisphere lateralization of the grasp-to-eat and other hand-to-mouth grasping movements...
March 21, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Madeleine Power, Eleonora Uphoff, Brian Kelly, Kate E Pickett
BACKGROUND: Since 2008, use of food banks has risen sharply in the UK; however, evidence on the epidemiology of UK food insecurity is sparse. The aim of this study was to describe the trajectory of common mental disorder across the pre-pregnancy, pregnancy and postnatal period for food secure compared with food insecure women. METHODS: Data from the Born in Bradford (BiB) cohort, the nested BiB1000 study and primary care records were linked based on National Health Service (NHS) numbers...
April 2017: Journal of Epidemiology and Community Health
Jing-Wang Cui, Suo-Xia Hou, Kristof Van Hecke, Guang-Hua Cui
The hydrothermal reactions of 1,2,4,5-cyclohexanetetracarboxylic acid (H4L) with CoCl2·2H2O and rigid or semi-rigid bis(imidazole) ligands were able to generate two Co(ii) coordination polymers (CPs), {[Co5(L)2(1,4-bimb)(μ3-OH)2(H2O)8]·2H2O}n (1), {[Co(L)0.5(1,4-bib)]·H2O}n (2) (1,4-bimb = 1,4-bis(imidazol-1-ylmethyl)benzene, 1,4-bib = 1,4-bis(1H-imidazol-1-yl)benzene). CPs 1 and 2 were structurally characterized by elemental analysis, IR spectroscopy, X-ray powder diffraction and single crystal X-ray diffraction...
February 14, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
Annie Quick, Jan R Böhnke, John Wright, Kate E Pickett
BACKGROUND: Evidence suggests that the process of taking part in health research can improve participants' health, independent of any intended intervention. However, no research has yet explored whether these effects differ across socioeconomic groups. If the effect of mere participation in health research also has a social gradient this could increase health inequalities and bias research results. This study used the Born in Bradford family cohort (BIB) to explore whether simply taking part in BIB had improved participants' health and, if so, whether this effect was mediated by socioeconomic status...
January 25, 2017: BMC Health Services Research
Anna Kuosmanen, Tuukka Norri, Veli Mäkinen
Transcript prediction can be modeled as a graph problem where exons are modeled as nodes and reads spanning two or more exons are modeled as exon chains. Pacific Biosciences third-generation sequencing technology produces significantly longer reads than earlier second-generation sequencing technologies, which gives valuable information about longer exon chains in a graph. However, with the high error rates of third-generation sequencing, aligning long reads correctly around the splice sites is a challenging task...
January 9, 2017: Briefings in Bioinformatics
Kavita Devi, S Chaitanya Kumar, M Ebrahim-Zadeh
We report a compact, fiber-laser-based, high-repetition-rate picosecond source for the ultraviolet (UV), providing multi-tens of milliwatt of average power across 329-348 nm. The source is based on internal sum-frequency-generation (SFG) in a singly resonant optical parametric oscillator (OPO), synchronously pumped at 532 nm by the second harmonic of a picosecond Yb-fiber laser at 80 MHz repetition rate. Using a 30-mm-long single-grating MgO:sPPLT crystal for the OPO and a 5-mm-long BiB<sub>3</sub>O<sub>6</sub> crystal for intracavity SFG, we generate up to 115 mW of average UV power at 339...
October 15, 2016: Optics Letters
Christian Tritsch, Jochen Martens, Yue-Hua Sun, Wieland Heim, Patrick Strutzenberger, Martin Päckert
A recent full species-level phylogeny of tits, titmice and chickadees (Paridae) has placed the Chinese endemic black-bibbed tit (Poecile hypermelaenus) as the sister to the Palearctic willow tit (P. montanus). Because this sister-group relationship is in striking disagreement with the traditional affiliation of P. hypermelaenus close to the marsh tit (P. palustris) we tested this phylogenetic hypothesis in a multi-locus analysis with an extended taxon sampling including sixteen subspecies of willow tits and marsh tits...
December 11, 2016: Molecular Phylogenetics and Evolution
B Winiarski, A Gholinia, K Mingard, M Gee, G E Thompson, P J Withers
Here we examine the potential of serial Broad Ion Beam (BIB) Ar(+) ion polishing as an advanced serial section tomography (SST) technique for destructive 3D material characterisation for collecting data from volumes with lateral dimensions significantly greater than 100µm and potentially over millimetre sized areas. Further, the associated low level of damage introduced makes BIB milling very well suited to 3D EBSD acquisition with very high indexing rates. Block face serial sectioning data registration schemes usually assume that the data comprises a series of parallel, planar slices...
January 2017: Ultramicroscopy
Ping Liu, Qiuxia Liu, Ning Zhao, Caixia An, Zhaoxun Lian
The design of nonlinear optical (NLO) materials with large NLO responses has been a challenge for materials scientists and chemists. Recently, organic polymers have received attention regarding their NLO properties and fast nonlinear response, and clusters involving delocalized dπ-pπ systems and conjugated dπ-pπ systems are expected to be a new class of NLO materials. Metal-organic coordination polymers combine the advantages of the organic and inorganic species. Thus far, tuning the third-order NLO properties of these materials has been a significant challenge...
November 1, 2016: Acta Crystallographica. Section C, Structural Chemistry
Wenlong Tian, Zhaohua Wang, Xianghao Meng, Ninghua Zhang, Jiangfeng Zhu, Zhiyi Wei
We report on an efficient high-power, widely tunable femtosecond optical parametric oscillator in BiB<sub>3</sub>O<sub>6</sub>, synchronously pumped by a frequency-doubled mode-locked Yb:KGW laser at 515 nm. Using collinear type I (o→e+e) phase matching, a resonant wavelength range of 688-1057 nm at a 151-MHz repetition rate is demonstrated, with a tunable idler range of 1150-1900 nm. The output power at 705 nm is 1.09 W for 3.6 W pump power exceeding 30% conversion efficiency. Near-transform-limited pulses down to 71 fs are achieved by deploying extracavity dispersion compensation in a pair of SF6 prisms...
November 1, 2016: Optics Letters
Zuo-Xi Li, Xue Zhang, Yi-Chen Liu, Kang-Yu Zou, Man-Li Yue
Herein, four new cadmium metal-organic frameworks (Cd-MOFs), [Cd(bib)(bdc)]∞ (1), [Cd(bbib)(bdc)(H2 O)]∞ (2), [Cd(bibp)(bdc)]∞ (3), and [Cd2 (bbibp)2 (bdc)2 (H2 O)]∞ (4), have been constructed from the reaction of Cd(NO3 )2 ⋅4 H2 O with 1,4-benzenedicarboxylate (H2 bdc) and structure-related bis(imidazole) ligands (1,4-bis(imidazol-1-yl)benzene (bib), 1,4-bis(benzoimidazol-1-yl)benzene (bbib), 4,4'-bis(imidazol-1-yl)biphenyl (bibp), and 4,4'-bis(benzoimidazol-1-yl)biphenyl (bbibp)) under solvothermal conditions...
October 25, 2016: Chemistry: a European Journal
Liu Yang, Peter M Piermarini
Aquaporins (AQPs) are a family of membrane-bound proteins, originally described as water-channels, that broadly exist in prokaryotic and eukaryotic cells. However, some AQPs can transport small molecules (e.g. urea, glycerol) along with or preferentially to water. Previous work in the mosquitoes Aedes aegypti and Anopheles gambiae have characterized the molecular expression of one or more AQP genes and shown that they are involved in water homeostasis after blood feeding, tolerance to dehydration and heat stresses, and development of Plasmodium falciparum in the mosquito...
January 2017: Journal of Insect Physiology
Ehab Atef, Khaled Refaat Zalata, Hoda Atef, Ahmed A M Abdel-Hamid
BACKGROUND AND AIM: The use of BioEnterics intragastric balloon (BIB) is progressively increasing, owing to the fact that morbid obesity becomes a global epidemic together with risks of bariatric surgery. Yet, the possible local BIB effect on gastric mucosa is not clearly elucidated. The aim of the current study was to assess the histological changes occurring in the gastric mucosa post-BIB insertion. METHODS: Gastric mucosa biopsy was obtained from 87 cases of morbid obesity both pre-BIB and 6 months post-BIB insertion to compare the local changes by histological and immunohistochemical analysis...
October 14, 2016: Digestive Diseases and Sciences
Yang Song, Ruiqing Fan, Jizhuang Fan, Kai Xing, Xi Du, Ping Wang, Yulin Yang
Three novel metal-organic assemblies (MOAs), namely, [Ag(2,4'-Hpdc)(4,4'-bpy)]n (1), [Ag(2,2'-Hpdc)(4,4'-bpy)0.5]n (2), and [Cu(2,2'-Hpdc)2(1,4-bib)]n (3) [2,4'-H2pdc = 2,4'-biphenyldicarboxylic acid; 2,2'-H2pdc = 2,2'-biphenyldicarboxylic acid; 4,4'-bpy = 4,4'-bipyridine; 1,4-bib = 1,4-bis(1-imidazolyl)benzene] have been hydrothermally synthesized by using mixed ligands and characterized by single crystal X-ray diffraction, infrared (IR), elemental analysis and thermogravimetric analysis (TGA). The crystal structures of the three compounds indicate that the hydrogen bonding (C-HO and C-Hπ) and ππ stacking interactions play critical roles in the formation of an extended supramolecular array...
October 18, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
Elizabeth S Heller Murray, Joseph O Mendoza, Simone V Gill, Joseph S Perkell, Cara E Stepp
Purpose: The purpose of this study was to determine the effects of biofeedback on control of nasalization in individuals with typical speech. Method: Forty-eight individuals with typical speech attempted to increase and decrease vowel nasalization. During training, stimuli consisted of consonant-vowel-consonant (CVC) tokens with the center vowels /a/ or /i/ in either a nasal or nonnasal phonemic context (e.g., /mim/ vs. /bib/), depending on the participant's training group...
October 4, 2016: Journal of Speech, Language, and Hearing Research: JSLHR
Nicola Crossland, Gill Thomson, Heather Morgan, Graeme MacLennan, Marion Campbell, Fiona Dykes, Pat Hoddinott
Increasing breastfeeding rates would improve maternal and child health, but multiple barriers to breastfeeding persist. Breast pump provision has been used as an incentive for breastfeeding, although effectiveness is unclear. Women's use of breast pumps is increasing and a high proportion of mothers express breastmilk. No research has yet reported women's and health professionals' perspectives on breast pumps as an incentive for breastfeeding. In the Benefits of Incentives for Breastfeeding and Smoking cessation in pregnancy (BIBS) study, mixed methods research explored women's and professionals' views of breast pumps as an incentive for breastfeeding...
October 2016: Maternal & Child Nutrition
Monifa A Fahie, Bib Yang, Bach Pham, Min Chen
We have previously shown that a biotin ligand tethered to the rim of an OmpG nanopore can be used to detect biotin-binding proteins. Here, we investigate the effect of the length of the polyethylene glycol tether on the nanopore's sensitivity and selectivity. When the tether length was increased from 2 to 45 ethylene repeats, sensitivity decreased substantially for a neutral protein streptavidin and slightly for a positively charged protein (avidin). In addition, we found that two distinct avidin binding conformations were possible when using a long tether...
May 27, 2016: ACS Sensors
Evelien Van Ekert, François Chauvigné, Roderick Nigel Finn, Lolita G Mathew, J Joe Hull, Joan Cerdà, Jeffrey A Fabrick
The Middle East-Asia Minor 1 (MEAM1) whitefly, Bemisia tabaci (Gennadius) is an economically important pest of food, fiber, and ornamental crops. This pest has evolved a number of adaptations to overcome physiological challenges, including 1) the ability to regulate osmotic stress between gut lumen and hemolymph after imbibing large quantities of a low nitrogen, sugar-rich liquid diet; 2) the ability to avoid or prevent dehydration and desiccation, particularly during egg hatching and molting; and 3) to be adapted for survival at elevated temperatures...
October 2016: Insect Biochemistry and Molecular Biology
Jimin Lee, Alexa L Pond, Julianna Sincavage
AIMS: Previous studies have shown significant correlations between the acoustic characteristics of /w/ and speech intelligibility. To understand the articulatory pattern in /w/ production, the current study investigated the movement characteristics of the tongue and lower lip in whip productions in comparison to bib productions. METHODS: Data from 19 typical adult male participants were collected using electromagnetic articulography. A number of kinematic measures of tongue body (approximately 25 mm posterior to the tongue apex) and lower lip movements were analyzed...
2016: Folia Phoniatrica et Logopaedica
Mukesh Kumar Shukla, Partha Sona Maji, Ritwick Das
We present an efficient and tunable source generating multi-watt single-frequency red radiation by intra-cavity frequency doubling of the signal in a MgO-doped periodically poled LiNbO<sub>3</sub> (MgO:PPLN)-based singly resonant optical parametric oscillator (SRO). By optimally designing the SRO cavity in a six-mirror configuration, we generate ≈276  nm tunable idler radiation in mid-infrared with a maximum power of P<sub>i</sub>=2.05  W at a pump power of P<sub>p</sub>=14...
July 1, 2016: Optics Letters
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