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https://www.readbyqxmd.com/read/28749583/chiral-sulfur-functional-groups-as-definers-of-the-chirality-at-the-metal-in-ir-and-rh-half-sandwich-complexes-a-combined-cd-x-ray-study
#1
Miguel A Sierra, Maria C de la Torre, Roberto Fernandez de la Pradilla, Alma Viso, Maria Frutos, Marta G Avello, Marina Velado, Heinz Gornitzka, Catherine Hemmert
Mesoionic carbenes (MIC) derived from triazolium salts containing chiral sulfoxide or sulfoximine functional groups lead to enantiopure chiral-at-metal Ir(III) and Rh(III) half-sandwich complexes, through the sequence MIC complexation-C-H aromatic activation. The process is efficient and totally diastereoselective in the formation of enantiopure five membered metallacycles. The use of the enantiomers of the sulfur chiral groups allows to prepare complexes having opposite configurations at the metal. Complete retention of the configuration at the metal center is observed during the formation of cationic Ir(III) complexes and upon insertion of alkynes into the Ir(III)-C bond, as demonstrated by a combined Circular Dichroism (CD)-X-ray study...
July 27, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28749370/hierarchical-nanosheet-based-ni3s2-microspheres-grown-on-ni-foam-for-high-performance-all-solid-state-asymmetric-supercapacitors
#2
Gaofeng Li, Yuan Cong, Chuanxiang Zhang, Haijun Tao, Yueming Sun, Yuqiao Wang
The hierarchical nanosheet-based Ni3S2 microspheres directly grew on Ni foam using a two-step hydrothermal method. The microsphere with a diameter of ~1 microns and a rough surface was well connected with each other without any binders to provide a larger specific surface area, shorter ion/electron diffusion paths, richer electroactive sites as a supercapacitor electrode. As a three-electrode supercapacitor, it delivers the high specific capacity of 981.8 F g-1 at 2 A g-1, excellent rate capability of 436.4 F g-1 at 12 A g-1, and good cycling stability of 950...
July 27, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28749326/pneumococcal-neuraminidase-activates-tgf-%C3%AE-signalling
#3
Nina Gratz, Lip Nam Loh, Beth Mann, Geli Gao, Robert Carter, Jason Rosch, Elaine I Tuomanen
Neuraminidase A (NanA) is an important virulence factor that is anchored to the pneumococcal cell wall and cleaves sialic acid on host substrates. We noted that a secreted allele of NanA was over-represented in invasive pneumococcal isolates and promoted the development of meningitis when swapped into the genome of non-meningitis isolates replacing cell wall-anchored NanA. Both forms of recombinant NanA directly activated transforming growth factor (TGF)-β, increased SMAD signalling and promoted loss of endothelial tight junction ZO-1...
July 28, 2017: Microbiology
https://www.readbyqxmd.com/read/28748623/photoacoustic-guided-surgery-with-indocyanine-green-coated-superparamagnetic-iron-oxide-nanoparticle-clusters
#4
Jayesh P Thawani, Ahmad Amirshaghaghi, Lesan Yan, Joel M Stein, Jessica Liu, Andrew Tsourkas
A common cause of local tumor recurrence in brain tumor surgery results from incomplete surgical resection. Adjunctive technologies meant to facilitate gross total resection have had limited efficacy to date. Contrast agents used to delineate tumors preoperatively cannot be easily or accurately used in the real-time operative setting. Although multimodal imaging contrast agents are developed to help the surgeon discern tumor from normal tissue in the operating room, these contrast agents are not readily translatable...
July 27, 2017: Small
https://www.readbyqxmd.com/read/28748447/cross-modal-working-memory-binding-and-l1-l2-word-learning
#5
Shinmin Wang, Richard J Allen, Shin-Yi Fang, Ping Li
The ability to create temporary binding representations of information from different sources in working memory has recently been found to relate to the development of monolingual word recognition in children. The current study explored this possible relationship in an adult word-learning context. We assessed whether the relationship between cross-modal working memory binding and lexical development would be observed in the learning of associations between unfamiliar spoken words and their semantic referents, and whether it would vary across experimental conditions in first- and second-language word learning...
July 26, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/28748311/advantages-of-melodic-over-rhythmic-movement-sonification-in-bimanual-motor-skill-learning
#6
J F Dyer, P Stapleton, M W M Rodger
An important question for skill acquisition is whether and how augmented feedback can be designed to improve the learning of complex skills. Auditory information triggered by learners' actions, movement sonification, can enhance learning of a complex bimanual coordination skill, specifically polyrhythmic bimanual shape tracing. However, it is not clear whether the coordination of polyrhythmic sequenced movements is enhanced by auditory-specified timing information alone or whether more complex sound mappings, such as melodic sonification, are necessary...
July 26, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28748204/data-on-effects-of-rotenone-on-calcium-retention-capacity-respiration-and-activities-of-respiratory-chain-complexes-i-and-ii-in-isolated-rat-brain-mitochondria
#7
Evelina Rekuviene, Laima Ivanoviene, Vilmante Borutaite, Ramune Morkuniene
The data presented in this article are related to the research article entitled "Rotenone decreases ischemia-induced injury by inhibiting mitochondrial permeability transition in mature brains" (Rekuviene et al., 2017) [1]. Data in this article present the direct effects of rotenone on calcium retention capacity (CRC) in isolated normal cortex and cerebellum mitochondria, effects of rotenone intravenous infusion on leak and phosphorylating respiration rates of isolated cortex and cerebellum mitochondria, on activities of respiratory chain complexes I and II in freezed-thawed/sonicated cortex and cerebellum mitochondria after brain ischemia...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28748086/area-health-education-center-ahec-programs-for-rural-and-underrepresented-minority-students-in-the-alabama-black-belt
#8
Ashruta Patel, Regina J Knox, Alicia Logan, Katie Summerville
BACKGROUND: This paper evaluated the implementation West Central Alabama Area Health Education Center programs for high school students in grades 9-12 through participant-reported evaluations and feedback during the  September 1st, 2013 to August 31st, 2014 fiscal year. The programs targeted racial/ethnic minorities and/or rural individuals interested in pursuing a career as a healthcare provider in medically underserved counties of Alabama. METHODS: Students participated in enrichment activities related to prospective health careers that included: successful college preparedness, knowledge about health careers, and the types of primary care health professions that are needed in underserved Alabama communities...
2017: Archives of Public Health, Archives Belges de Santé Publique
https://www.readbyqxmd.com/read/28747823/effects-of-beef-fat-replacement-with-gelled-emulsion-prepared-with-olive-oil-on-quality-parameters-of-chicken-patties
#9
Meltem Serdaroğlu, Berker Nacak, Merve Karabıyıkoğlu
The objective of this study was to investigate the effect of using gelled emulsion (olive oil 46%, inulin 9%, gelatin 3%) as fat replacer on some quality parameters of chicken patties. For this purpose GE, prepared with olive oil, gelatin and inulin was replaced with beef fat at a level of 0%, 25%, 50%, 100% (C, G25, G50, G100). In this study syneresis, thermal stability, centrifuge and creaming stability of gelled emulsion were analyzed. Chemical composition, technological paramerers (cooking yield, water holding capacity, diameter reduction, fat and moisture retention) and textural and sensory properites were evaluated in comparision to control patties...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28747768/controlling-adult-stem-cell-behavior-using-nanodiamond-reinforced-hydrogel-implication-in-bone-regeneration-therapy
#10
Settimio Pacelli, Ryan Maloney, Aparna R Chakravarti, Jonathan Whitlow, Sayantani Basu, Saman Modaresi, Stevin Gehrke, Arghya Paul
Nanodiamonds (NDs) have attracted considerable attention as drug delivery nanocarriers due to their low cytotoxicity and facile surface functionalization. Given these features, NDs have been recently investigated for the fabrication of nanocomposite hydrogels for tissue engineering. Here we report the synthesis of a hydrogel using photocrosslinkable gelatin methacrylamide (GelMA) and NDs as a three-dimensional scaffold for drug delivery and stem cell-guided bone regeneration. We investigated the effect of different concentration of NDs on the physical and mechanical properties of the GelMA hydrogel network...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747507/roles-of-cellular-nsf-protein-in-entry-and-nuclear-egress-of-budded-virions-of-autographa-californica-multiple-nucleopolyhedrovirus
#11
Ya Guo, Qi Yue, Jinli Gao, Zhe Wang, Yun-Ru Chen, Gary W Blissard, Tong-Xian Liu, Zhaofei Li
In eukaryotic cells, the soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein receptor (SNARE) proteins comprise the minimal machinery that triggers fusion of transport vesicles with their target membranes. Comparative studies revealed that genes encoding the components of the SNARE system are highly conserved in yeast, insect, and human genomes. Upon infection of insect cells by the virus AcMNPV, the transcript levels of most SNARE genes were initially up-regulated. We found that overexpression of dominant-negative (DN) forms of NSF or knock-down of the expression of NSF, the key regulator of the SNARE system, significantly affected the infectious AcMNPV production...
July 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28747318/attention-and-memory-impairments-in-pediatric-patients-with-cystic-fibrosis-and-inflammatory-bowel-disease-in-comparison-to-healthy-controls
#12
Bartosz Piasecki, Maia Stanisławska-Kubiak, Wojciech Strzelecki, Ewa Mojs
The main aim of the study was to analyze and compare attention and memory performance in pediatric patients with cystic fibrosis (CF), inflammatory bowel disease (IBD) and in healthy controls. 28 patients with CF, 30 patients with IBD and 30 healthy subjects took part in the study (all in age range of 7-17). All subjects were in intellectual norm. To analyze the functioning of attention, the d2 Test of Attention by Brickenkamp (d2 test) was applied. Memory performance was assessed using the Benton Visual Retention Test (BVRT) and the Trial of 10 words...
July 26, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28747254/simulation-of-elution-profiles-in-liquid-chromatography-ii-investigation-of-injection-volume-overload-under-gradient-elution-conditions-applied-to-second-dimension-separations-in-two-dimensional-liquid-chromatography
#13
Dwight R Stoll, Ray W Sajulga, Bryan N Voigt, Eli J Larson, Lena N Jeong, Sarah C Rutan
An important research direction in the continued development of two-dimensional liquid chromatography (2D-LC) is to improve the detection sensitivity of the method. This is especially important in applications where injection of large volumes of effluent from the first dimension ((1)D) column into the second dimension ((2)D) column leads to severe (2)D peak broadening and peak shape distortion. For example, this is common when coupling two reversed-phase columns and the organic solvent content of the (1)D mobile phase overwhelms the (2)D column with each injection of (1)D effluent, leading to low resolution in the second dimension...
July 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28747232/development-of-an-accumulation-assay-and-evaluation-of-the-effects-of-efflux-pump-inhibitors-on-the-retention-of-chlorhexidine-digluconate-in-pseudomonas-aeruginosa-and-staphylococcus-aureus
#14
Molly Mombeshora, Stanley Mukanganyama
BACKGROUND: Chlorhexidine digluconate (CHG) is used as a disinfectant. The emergence of pathogens resistant to the biocide raises health concern. Information on specific efflux mechanisms utilised by bacteria to confer reduced susceptibility to the biocide, may be used to develop ways of preventing the efflux of the biocide from nosocomial pathogens resulting in higher disinfection activity. The aim of the study was to evaluate the role of ATP-binding cassette transporters on the transport of CHG in bacteria...
July 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28747041/influence-of-commercial-inactivated-yeast-derivatives-on-the-survival-of-probiotic-bacterium-lactobacillus-rhamnosus-hn001-in-an-acidic-environment
#15
Mingzhan Toh, Shao Quan Liu
This study evaluated the influence of three inactivated yeast derivatives (IYDs) used in wine production, namely OptiRed(®), OptiWhite(®) and Noblesse(®), on the viability of the probiotic strain Lactobacillus rhamnosus HN001 in an acidic environment. Addition of the IYDs at 3 g/L significantly enhanced the survival of the probiotic bacteria by 2.75-4.05 log cycles after 10-h exposure in a pH 3.0 buffer. Acid stress assay with IYD components obtained after centrifugation and filtration revealed that water-soluble compounds were responsible for improving the acid tolerance of L...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28746775/spatial-connectivity-in-an-adult-sedentary-reef-fish-with-extended-pelagic-larval-phase
#16
L Antoni, E Saillant
Understanding the spatial scale of demographic connectivity in marine reef fishes dispersing pelagic larvae is a challenging task because of the technical difficulties associated with tagging and monitoring the movements of progeny at early life stages. Several studies highlighted a strong importance of local retention with levels of dispersal of ecological significance restricted to short distances. To date little information is available in species where pelagic dispersal lasts for long periods of time. In this work population structure and connectivity were studied in the gray triggerfish, Balistes capriscus...
July 26, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28746493/miniscrew-assisted-rapid-palatal-expansion-for-managing-arch-perimeter-in-an-adult-patient
#17
Amanda Carneiro da Cunha, Hisun Lee, Lincoln Issamu Nojima, Matilde da Cunha Gonçalves Nojima, Kee-Joon Lee
Introduction: Etiology of dental crowding may be related to arch constriction in diverse dimensions, and an appropriate manipulation of arch perimeter by intervening in basal bone discrepancies cases, may be a key for crowding relief, especially when incisors movement is limited due to underlying pathology, periodontal issues or restrictions related to soft tissue profile. Objectives: This case report illustrates a 24-year old woman, with maxillary transverse deficiency, upper and lower arches crowding, Class II, division 1, subdivision right relationship, previous upper incisors traumatic episode and straight profile...
May 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28746228/randomized-noninferiority-study-between-video-versus-hand-ultrasound-with-wet-foam-dressing-materials-to-simulate-b-lines-in-lung-ultrasound-a-consort-compliant-article
#18
Eun Jung Park, Young Tak Yoon, Chong Kun Hong, Young Rock Ha, Jung Hwan Ahn
BACKGROUND: This study evaluated the efficacy of a teaching method using simulated B-lines of hand ultrasound with a wet foam dressing material. METHODS: This prospective, randomized, noninferiority study was conducted on emergency medical technician students without any relevant training in ultrasound. Following a lecture including simulated (SG) or real video clips (RG) of B-lines, a posttest was conducted and a retention test was performed after 2 months. The test consisted of questions about B-lines in 40 randomly mixed video clips (20 simulated and 20 real videos) with 4 answer scores (R-1 [the correct answer score for the real video clips] vs S-1 [the correct answer score for the simulated video clips] in the posttest, R-2 [the correct answer score for the real video clips] vs S-2 [the correct answer score for the simulated video clips] in the retention test)...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28746167/factors-associated-with-prevalent-hiv-infection-among-kenyan-msm-the-anza-mapema-study
#19
Colin P Kunzweiler, Robert C Bailey, Duncan O Okall, Susan M Graham, Supriya D Mehta, Fredrick O Otieno
BACKGROUND: In order to inform future HIV treatment and care programs for men who have sex with men (MSM), we assessed the prevalence of and factors associated with previously diagnosed out-of-care (PDOC) or newly diagnosed out-of-care (NDOC) HIV infection among MSM enrolled in the prospective Anza Mapema cohort study. METHODS: Participants were aged >18, reported oral or anal sex with a man in the past 6 months, and were not already in HIV care or taking antiretroviral therapy in the past 3 months...
July 24, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28745969/creating-workforce-transformation
#20
Sam Foster
Sam Foster, Chief Nurse at Heart of England NHS Foundation Trust, looks at opportunities for continuing professional development, which is key for both recruitment and retention.
July 27, 2017: British Journal of Nursing: BJN
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