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https://www.readbyqxmd.com/read/28091638/highly-ordered-sandwich-type-phthalocyaninato-porphyrinato-europium-double-decker-nanotubes-and-room-temperature-no2-sensitive-properties
#1
Peihua Zhu, Yucheng Wang, Pan Ma, Feifei Song, Xinyu Han, Shuncheng Yao, Cheng Yang
A sandwich-type (phthalocyaninato)(porphyrinato) europium double-decker complex Eu(TPyP){Pc-(OC8H17)8} [TPyP = meso-tetra(4-pyridyl)porphyrin; Pc-(OC8H17)8 = 2,3,9,10,16,17,23,24-octakis(octyloxy)phthalocyanine] (2) was designed and prepared. For comparative studies, Eu(TPyP)(Pc) (1) was also prepared. Highly ordered nanotubes of complexes 1 and 2 were successfully fabricated by using an anodized alumina oxide (AAO) template method. The nanotubes were comparatively investigated by electronic absorption spectra, scanning electron microscopy (SEM), low-angle X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and energy dispersive spectroscopy (EDS) techniques...
January 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28090714/transplantation-of-cd51-stem-leydig-cells-a-new-strategy-for-the-treatment-of-testosterone-deficiency
#2
Zhi Jun Zang, Jiancheng Wang, Zhihong Chen, Yan Zhang, Yong Gao, Zhijian Su, Ying Tuo, Yan Liao, Min Zhang, Qunfang Yuan, Chunhua Deng, Mei Hua Jiang, Andy Peng Xiang
Stem Leydig cell (SLC) transplantation could provide a new strategy for treating the testosterone deficiency. Our previous study demonstrated that CD51 (also called integrin αv) might be a putative cell surface marker for SLCs, but the physiological function and efficacy of CD51(+) SLCs treatment remain unclear. Here, we explore the potential therapeutic benefits of CD51(+) SLCs transplantation and whether these transplanted cells can be regulated by the hypothalamic-pituitary-gonadal (HPG) axis. CD51(+) cells were isolated from the testes of 12-weeks-old C57BL/6 mice, and we showed that such cells expressed SLC markers and that they were capable of self-renewal, extensive proliferation, and differentiation into multiple mesenchymal cell lineages and LCs in vitro...
January 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28089930/scaffolds-containing-chitosan-gelatin-and-graphene-oxide-for-bone-tissue-regeneration-in-vitro-and-in-vivo
#3
S Saravanan, Anjali C, M Vairamani, T P Sastry, K S Subramanian, N Selvamurugan
Critical-sized bone defects are augmented with cell free and cell loaded constructs to bridge bone defects. Improving the properties of three-dimensional scaffolds with multiple polymers and others is of growing interest in recent decades. Chitosan (CS), a natural biopolymer has limitations for its use in bone regeneration, and its properties can be enhanced with other materials. In the present study, the composite scaffolds containing CS, gelatin (Gn) and graphene oxide (GO) were fabricated through freeze-drying...
January 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28089400/selective-sequential-separation-of-abs-hips-and-pvc-from-automobile-and-electronic-waste-shredder-residue-by-hybrid-nano-fe-ca-cao-assisted-ozonisation-process
#4
Srinivasa Reddy Mallampati, Byoung Ho Lee, Yoshiharu Mitoma, Cristian Simion
The separation of plastics containing brominated flame retardants (BFR) like (acrylonitrile-butadiene-styrene (ABS), high-impact polystyrene (HIPS), and polyvinyl chloride (PVC)) from automobile and electronic waste shredder residue (ASR/ESR) are a major concern for thermal recycling. In laboratory scale tests using a hybrid nano-Fe/Ca/CaO assisted ozonation treatment has been found to selectively hydrophilize the surface of ABS/HIPS and PVC plastics, enhancing ABS wettability and thereby promoting its separation from ASR/ESR by means of froth flotation...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28089398/high-temperature-investigations-on-optimising-the-recovery-of-copper-from-waste-printed-circuit-boards
#5
R Cayumil, M Ikram-Ul-Haq, R Khanna, R Saini, P S Mukherjee, B K Mishra, V Sahajwalla
High temperature pyrolysis investigations were carried out on waste printed circuit boards (PCBs) in the temperature range 800-1000°C under inert conditions, with an aim to determine optimal operating conditions for the recovery of copper. Pyrolysis residues were characterized using ICP-OES analysis, SEM/EDS and XRD investigations. Copper foils were successfully recovered after pyrolysis at 800°C for 10-20 min; the levels of Pb and Sn present were found to be quite low and these were generally present near the foil edges...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28088570/achillea-millefolium-l-extract-mediated-green-synthesis-of-waste-peach-kernel-shell-supported-silver-nanoparticles-application-of-the-nanoparticles-for-catalytic-reduction-of-a-variety-of-dyes-in-water
#6
Bahar Khodadadi, Maryam Bordbar, Mahmoud Nasrollahzadeh
In this paper, silver nanoparticles (Ag NPs) are synthesized using Achillea millefolium L. extract as reducing and stabilizing agents and peach kernel shell as an environmentally benign support. FT-IR spectroscopy, UV-Vis spectroscopy, X-ray Diffraction (XRD), Field emission scanning electron microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDS), Thermo gravimetric-differential thermal analysis (TG-DTA) and Transmission Electron Microscopy (TEM) were used to characterize peach kernel shell, Ag NPs, and Ag NPs/peach kernel shell...
January 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28088072/microstructural-mechanical-and-corrosion-characteristics-of-heat-treated-mg-1-2zn-0-5ca-wt-alloy-for-use-as-resorbable-bone-fixation-material
#7
Hamdy Ibrahim, Andrew D Klarner, Behrang Poorganji, David Dean, Alan A Luo, Mohammad Elahinia
Mg-Zn-Ca alloys have grabbed most of the recent attention in research attempting to develop an Mg alloy for bone fixation devices due to their superior biocompatibility. However, early resorption and insufficient strength remain the main problems that hinder their use. Heat treatment has previously been thoroughly studied as a post-shaping process, especially after the fabrication of complex parts (e.g. porous structures) by 3D-printing or powder metallurgy. In this work, the effect of heat treatment on Mg-1...
January 5, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28087889/national-audit-of-the-quality-of-pain-relief-provided-in-emergency-departments-in-aotearoa-new-zealand-the-prized-1-study
#8
(no author information available yet)
OBJECTIVE: Pain is a common feature of ED presentations and the timely provision of adequate analgesia is important for patient care. However, there is currently no New Zealand data with respect to this indicator of care quality. The present study aimed to provide a baseline for the quality of care with respect to the provision of timely and adequate analgesia in New Zealand EDs. METHODS: The present study is a secondary analysis of data initially collected for the Shorter Stays in Emergency Department Study, using a retrospective chart review of 1685 randomly selected ED presentations (2006-2012) from 26 New Zealand public hospital EDs...
January 13, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28080029/one-step-fabrication-of-3d-nano-hierarchical-ni-nanomace-array-to-sinter-with-ag-nps-and-the-interfacial-analysis
#9
Wei Zhou, Zhen Zheng, Chunqing Wang, Zhongtao Wang, Rong An
Three-dimensional (3D) nano-hierarchical Ni nanomace (Ni NM) array was fabricated on copper substrate by only one step with electroplating method, the unique structure was covered with Au film (Ni/Au NM) without changing its morphology and in the following step, it was sintered with silver nanoparticle (Ag NP) paste. The structure of Ni NM array and its surface morphology were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM). The sintered interface was investigated by SEM, Transmission Electron Microscopy (TEM) and Energy-Dispersive X-Ray Spectroscopy (EDS) to analyze the sintering mechanism...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28079561/-single-checked-patient-group-directions-during-initial-nurse-assessment-within-paediatric-emergency-departments-of-the-uk-and-ireland
#10
Chris K Bird, Anthony G Sinclair, Stuart Hartshorn
OBJECTIVE: Double checking medications at initial assessment within paediatric emergency departments (EDs) has the potential to delay patient flow, and doubt has been cast on the efficacy of double checking in all but high-risk medications. We aimed to benchmark current practice for the use of Patient Group Direction (PGD) medications at initial assessment in EDs within the Paediatric Emergency Research UK and Ireland (PERUKI) network, with a focus on the use of 'single-checker' PGDs...
January 10, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28079022/lifitegrast-for-the-treatment-of-dry-eye-disease-results-of-a-phase-iii-randomized-double-masked-placebo-controlled-trial-opus-3
#11
Edward J Holland, Jodi Luchs, Paul M Karpecki, Kelly K Nichols, Mitchell A Jackson, Kenneth Sall, Joseph Tauber, Monica Roy, Aparna Raychaudhuri, Amir Shojaei
PURPOSE: Lifitegrast is a lymphocyte function-associated antigen-1 antagonist developed to reduce inflammation in dry eye disease (DED). We report the results of OPUS-3 (NCT02284516), a phase III study evaluating the efficacy and safety of lifitegrast versus placebo in participants with DED. DESIGN: Twelve-week, phase III, randomized, double-masked, multicenter, placebo-controlled study. PARTICIPANTS: Adults aged ≥18 years with Schirmer tear test (without anesthesia) ≥1 and ≤10 mm, corneal fluorescein staining score ≥2...
January 2017: Ophthalmology
https://www.readbyqxmd.com/read/28078472/using-the-edinburgh-postnatal-depression-scale-for-women-and-men-some-cautionary-thoughts
#12
Stephen Matthey, Francesca Agostini
The objective of the study was to critically consider some of the possible limitations in the Edinburgh Depression Scale (EDS), given that great emphasis is put on the results of this measure within both clinical and research fields. Using findings and discussion points from other studies, as well as from a critical analysis of issues by the authors based upon their clinical and research experience, possible limitations with the scale in nine areas are discussed. Possible limitations include the following: (1) ambiguous items, (2) exclusion of certain types of distress, (3) scoring difficulties, (4) low positive predictive value, (5) frequent use of incorrect cut-off scores, (6) a vast array of validated cut-off scores, (7) validation against a questionable gold-standard, (8) limited anxiety detection and of depressive symptoms in men, and (9) many screen positive women only have transient distress...
January 11, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28078169/a-survey-of-energy-drink-consumption-patterns-among-college-students-at-a-mostly-hispanic-university
#13
Ernesto Cabezas-Bou, Jeidiel De León-Arbucias, Nikol Matos-Vergara, Yocasta Álvarez-Bagnarol, Jesús Ortega-Guzmán, Karla Narváez-Pérez, Nelson D Cruz-Bermúdez, Manuel Díaz-Ríos
Background: The purpose of this study was to determine energy drink (ED) consumption patterns among Hispanic college students. We measured the prevalence and frequency of ED consumption according to gender, degree programs, and specific university-related and social situations. In addition, we assessed the frequency of consumption of EDs mixed with alcoholic beverages. Methods: A total of 508 college students from the University of Puerto Rico, the largest Hispanic institution of higher education statewide, completed an online questionnaire...
December 1, 2016: Journal of Caffeine Research
https://www.readbyqxmd.com/read/28077805/spin-exciton-interaction-and-related-micro-photoluminescence-spectra-of-znse-mn-dms-nanoribbon
#14
Lipeng Hou, Weichang Zhou, Bingsuo Zou, Yu Zhang, Junbo Han, Xinxin Yang, Zhihong Gong, Jingbo Li, Sishen Xie, Lijie Shi
For their spintronic applications the magnetic and optical properties of diluted magnetic semiconductors (DMS) have been studied widely. However, the exact relationships between their magnetic interactions and optical emission behaviors in DMS are not well understood yet due to their complicated microstructural and compositional characters from different growth and preparation techniques. Manganese (Mn) doped ZnSe nanoribbons with high quality were obtained by using the chemical vapor deposition (CVD) method...
January 12, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28077691/establishment-and-baseline-characteristics-of-a-nationwide-danish-cohort-of-patients-with-ehlers-danlos-syndrome
#15
Marie-Louise Kulas Søborg, Julie Leganger, Laura Quitzau Mortensen, Jacob Rosenberg, Jakob Burcharth
OBJECTIVES: The aim of this study was to investigate national prevalence, general demographic characteristics and survival of Danish patients with Ehlers-Danlos syndrome (EDS). METHOD: A population-based cohort study was conducted using a database consisting of the entire Danish population alive at any given time between 1 January 2000 and 31 December 2012, based upon longitudinal Danish national registers. All patients with EDS were identified, and the cohort was described by disease prevalence, basic demographic characteristics, mean age at death and mortality for the observational period of 13 years...
January 11, 2017: Rheumatology
https://www.readbyqxmd.com/read/28076975/book-reviews-boltz-marie-and-galvin-james-e-eds-dementia-care-an-evidence-based-approach-springer-international-publishing-switzerland-2016-325-pp-ibsn-978-3-319-18376-3-129-00-sbk-beard-ren%C3%A3-e-l-living-with-alzheimer-s-managing-memory-loss-identity-and-illness
#16
https://www.readbyqxmd.com/read/28075124/ptni-nio-clusters-coated-by-hollow-sillica-novel-design-for-highly-efficient-hydrogen-production-from-ammonia-borane
#17
Yuzhen Ge, Wanyue Ye, Zameer Hussain Shah, Xi-Jie Lin, Rongwen Lu, Shufen Zhang
Ammonia-borane (NH3•BH3; AB) has been considered as an excellent chemical material for the hydrogen storage. However, developing highly efficient catalysts for continuous hydrogen generation from AB is still a challenge for the future fuel cell applications. The combination of Pt with Ni is an effective strategy to achieve active bimetallic nanocatalyst, and the particle size has been proved to play a crucial role in determining its final activity. However, the synthesis of PtNi bimetallic catalyst in the size of highly dispersed clusters has always been a challenge...
January 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28073822/obstructive-sleep-apnoea-and-quality-of-life-in-ehlers-danlos-syndrome-a-parallel-cohort-study
#18
Thomas Gaisl, Cecilia Giunta, Daniel J Bratton, Kate Sutherland, Christian Schlatzer, Noriane Sievi, Daniel Franzen, Peter A Cistulli, Marianne Rohrbach, Malcolm Kohler
BACKGROUND: Patients with the connective tissue disorder Ehlers-Danlos syndrome (EDS) often suffer from fatigue, excessive daytime sleepiness and impaired quality of life. Obstructive sleep apnoea (OSA) may be an underlying cause for these symptoms but its prevalence in this population is unclear. METHODS: In this prospective parallel-cohort study, we included 100 adult patients with EDS (46% hypermobile-type, 35% classical-type and 19% other), which were one-to-one matched to 100 healthy adult controls according to sex, age, weight and height...
January 10, 2017: Thorax
https://www.readbyqxmd.com/read/28073787/col6a5-variants-in-familial-neuropathic-chronic-itch
#19
Filippo Martinelli-Boneschi, Marina Colombi, Marco Castori, Grazia Devigili, Roberto Eleopra, Rayaz A Malik, Marco Ritelli, Nicoletta Zoppi, Chiara Dordoni, Melissa Sorosina, Paola Grammatico, Hassan Fadavi, Monique M Gerrits, Rowida Almomani, Catharina G Faber, Ingemar S J Merkies, Daniela Toniolo, Massimiliano Cocca, Claudio Doglioni, Stephen G Waxman, Sulayman D Dib-Hajj, Michela M Taiana, Jenny Sassone, Raffaella Lombardi, Daniele Cazzato, Andrea Zauli, Silvia Santoro, Margherita Marchi, Giuseppe Lauria
Itch is thought to represent the peculiar response to stimuli conveyed by somatosensory pathways shared with pain through the activation of specific neurons and receptors. It can occur in association with dermatological, systemic and neurological diseases, or be the side effect of certain drugs. However, some patients suffer from chronic idiopathic itch that is frequently ascribed to psychological distress and for which no biomarker is available to date. We investigated three multigenerational families, one of which diagnosed with joint hypermobility syndrome/Ehlers-Danlos syndrome hypermobility type (JHS/EDS-HT), characterized by idiopathic chronic itch with predominantly proximal distribution...
January 9, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28073611/propofol-versus-midazolam-for-procedural-sedation-in-the-emergency-department-a-study-on-efficacy-and-safety
#20
Heleen Lameijer, Ytje T Sikkema, Albert Pol, Maike G E Bosch, Femke Beije, Rieneke Feenstra, Bas W J Bens, Ewoud Ter Avest
BACKGROUND: Procedural sedation for painful procedures in the emergency department (ED) can be accomplished with various pharmacological agents. The choice of the sedative used is highly dependent on procedure- and patient characteristics and on personal- or local preferences. METHODS: We conducted a multicenter retrospective cohort study of procedural sedations performed in the EDs of 5 hospitals in the Netherlands over a 4year period to evaluate the efficacy- (success rate of the intended procedure) and safety (incidence of sedation (adverse) events) of propofol sedations compared to midazolam sedations...
January 3, 2017: American Journal of Emergency Medicine
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