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https://www.readbyqxmd.com/read/27863288/broad-ion-beam-serial-section-tomography
#1
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...
November 11, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/27811431/structure-and-third-order-nonlinear-optical-properties-of-the-two-dimensional-co-ii-coordination-polymer-co-1-2-bib-pa-n-1-2-bib-is-1-2-bis-1h-imidazol-1-yl-methyl-benzene-and-h2pa-is-phthalic-acid
#2
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
https://www.readbyqxmd.com/read/27805633/high-power-widely-tunable-green-pumped-femtosecond-bib-sub-3-sub-o-sub-6-sub-optical-parametric-oscillator
#3
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
https://www.readbyqxmd.com/read/27778379/controlling-the-bet-surface-area-of-porous-carbon-by-using-the-cd-c-ratio-of-a-cd-mof-precursor-and-enhancing-the-capacitance-by-activation-with-koh
#4
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
https://www.readbyqxmd.com/read/27773635/molecular-expression-of-aquaporin-mrnas-in-the-northern-house-mosquito-culex-pipiens
#5
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...
October 20, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27743165/increased-proliferative-activity-accompanies-the-local-inflammatory-response-of-gastric-mucosa-after-intragastric-balloon-insertion
#6
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
https://www.readbyqxmd.com/read/27711746/highly-sensitive-and-selective-fluorescent-probes-for-hg-2-in-ag-i-cu-ii-3d-supramolecular-architectures-based-on-noncovalent-interactions
#7
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
https://www.readbyqxmd.com/read/27701628/effects-of-biofeedback-on-control-and-generalization-of-nasalization-in-typical-speakers
#8
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
https://www.readbyqxmd.com/read/27502101/breast-pumps-as-an-incentive-for-breastfeeding-a-mixed-methods-study-of-acceptability
#9
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
https://www.readbyqxmd.com/read/27500277/tuning-the-selectivity-and-sensitivity-of-an-ompg-nanopore-sensor-by-adjusting-ligand-tether-length
#10
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
https://www.readbyqxmd.com/read/27491441/molecular-and-functional-characterization-of-bemisia-tabaci-aquaporins-reveals-the-water-channel-diversity-of-hemipteran-insects
#11
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
https://www.readbyqxmd.com/read/27453992/tongue-and-lower-lip-movement-in-semivowel-w-production
#12
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
https://www.readbyqxmd.com/read/27367094/yb-fiber-laser-pumped-high-power-broadly-tunable-single-frequency-red-source-based-on-a-singly-resonant-optical-parametric-oscillator
#13
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
https://www.readbyqxmd.com/read/27353844/bioenterics-intragastric-balloon-bib-versus-spatz-adjustable-balloon-system-abs-our-experience-in-the-elderly
#14
Teresa Russo, Giovanni Aprea, Cesare Formisano, Simona Ruggiero, Gennaro Quarto, Raffaele Serra, Guido Massa, Luigi Sivero
The BioEnterics Intragastric Balloon (BIB) and the Spatz Adjustable Balloon System (ABS) are in fact recommended for weight reduction as a bridge to bariatric surgery. We retrospected studied patients with body mass index (BMI) and age ranges of 37-46 and 70-80 years, respectively, who had undergone BIB from January 2010 to July 2012 and prospected studied patients who had undergone Spatz balloon from July 2012 to August 2014. The aim of this study is to compare BIB and Spatz in terms of weight loss, complications, and maintenance of weight after removal...
June 21, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27280079/uropygial-gland-and-bib-colouration-in-the-house-sparrow
#15
Gregorio Moreno-Rueda
Birds frequently signal different qualities by plumage colouration, mainly during mating. However, plumage colouration is determined during the moult, and therefore it would indicate the quality of individual birds during the moult, not its current quality. Recent studies, however, suggest that birds could modify plumage colouration by using cosmetic preen oil produced by the uropygial gland. In this study, I show that bib colouration is related to uropygial gland size and body condition in male house sparrows (Passer domesticus)...
2016: PeerJ
https://www.readbyqxmd.com/read/27227755/laparoscopic-and-ultrasound-assisted-management-of-gallstone-ileus-after-biliointestinal-bypass-case-report-and-a-review-of-literature
#16
Mauro Zago, Samantha Bozzo, Andrea Centurelli, Alessandro Giovanelli, Michele Ciocca Vasino
AIM: To report about an additional case of biliary ileus after bariatric surgery is reported and extensively reviewing the literature on this topic. MATERIAL OF STUDY: We reviewed the literature and found three cases of gallstone ileus (GI) that occurred after bariatric surgery. DISCUSSION: A 41 year old patient presented a GI eight years after a biliointestinal bypass (BIB) for morbid obesity. The patient complained of abdominal pain for two weeks...
2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27180871/a-new-family-of-1d-2d-and-3d-frameworks-aggregated-from-ni5-ni4-and-ni7-building-units-synthesis-structure-and-magnetism
#17
Ya-Hui Liu, Li-Ping Lu, Miao-Li Zhu, Si-Si Feng, Feng Su
Three new Ni(ii)-clusters based on a Y-shaped ligand (biphenyl-3,4',5-tricarboxylate, H3BPT), [Ni5(HBPT)4(OH)2(H2O)12]n (), [Ni4(BPT)2(OH)2(H2O)6]n·4nH2O (), and [Ni7(BPT)2(1,4-bib)2(OH)6(HCO2)2]n·3nH2O () (1,4-bib = 1,4-bi(1H-imidazol-1-yl)benzene), have been synthesized under solvothermal conditions. They were studied by infrared spectroscopy (IR), single crystal X-ray diffraction, thermogravimetric analysis (TGA), and magnetochemistry. The complexes contain low nuclear Ni-clusters as building units (BUs)...
May 31, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27157420/telomere-length-elongation-after-weight-loss-intervention-in-obese-adults
#18
L Carulli, C Anzivino, E Baldelli, M F Zenobii, M B L Rocchi, M Bertolotti
INTRODUCTION: Telomeres may be considered markers of biological aging, shorter telomere length is associated with some age-related diseases; in several studies short telomere length has also been associated to obesity in adults and adolescents. However the relationship between telomere complex functions and obesity is still not clear. Aim of the study was to assess telomere length (TL) in adults' obese subjects before and after weight loss obtained by placement of bioenteric intragastric balloon (BIB) for 6months...
June 2016: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/27066416/submandibular-duct-re-routing-for-drooling-in-neurologically-impaired-children
#19
Prem Sagar, K K Handa, Sheffali Gulati, Rajeev Kumar
Drooling is a challenging situation to manage especially in neurologically impaired pediatric population. Numerous surgical procedures have been described in literature but none of them is standardized. We evaluate the effectiveness of bilateral submandibular duct rerouting and sublingual gland excision in drooling paediatric patients. Prospective interventional study was conducted from November 2007 to September 2009 in twenty-eight pediatric patients with drooling who had failed conservative treatment modalities...
March 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27045187/a-three-dimensional-mixed-valence-cu-ii-cu-i-coordination-polymer-constructed-from-biphenyl-3-4-5-tricarboxylate-and-1-4-bis-1h-imidazol-1-yl-benzene-ligands
#20
Ya Hui Liu, Li Ping Lu, Miao Li Zhu, Feng Su
Coordination polymers (CPs) built by coordination bonds between metal ions/clusters and multidentate organic ligands exhibit fascinating structural topologies and potential applications as functional solid materials. The title coordination polymer, poly[diaquabis(μ4-biphenyl-3,4',5-tricarboxylato-κ(4)O(3):O(3'):O(4'):O(5))tris[μ2-1,4-bis(1H-imidazol-1-yl)benzene-κ(2)N(3):N(3')]dicopper(II)dicopper(I)], [Cu(II)2Cu(I)2(C15H7O6)2(C12H10N4)3(H2O)2]n, was crystallized from a mixture of biphenyl-3,4',5-tricarboxylic acid (H3bpt), 1,4-bis(1H-imidazol-1-yl)benzene (1,4-bib) and copper(II) chloride in a water-CH3CN mixture under solvothermal reaction conditions...
April 2016: Acta Crystallographica. Section C, Structural Chemistry
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