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https://www.readbyqxmd.com/read/28324711/fire-hazard-reduction-of-hollow-glass-microspheres-in-thermoplastic-polyurethane-composites
#1
Chuanmei Jiao, Hongzhi Wang, Shaoxiang Li, Xilei Chen
Nowadays, reducing the fire hazard of thermoplastic polyurethane (TPU) is an important research direction in the fields of fire safety materials. In this article, hollow glass microsphere (HGM) was used to reduce the fire hazard of TPU in combustion process. The fire characteristics including smoke and heat production of TPU composites were evaluated using smoke density test (SDT) and cone calorimeter test (CCT). And the thermal decomposition and flammable properties were further studied using thermogravimetric analysis/infrared spectrometry (TG-IR) and limiting oxygen index (LOI), etc...
February 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28321449/catalysts-of-self-assembled-pt-ceo2-%C3%AE-rich-core-shell-nanoparticles-on-3d-ordered-macroporous-ce1-xzrxo2-for-soot-oxidation-nanostructure-dependent-catalytic-activity
#2
Yuechang Wei, Jinqing Jiao, Xindong Zhang, Baofang Jin, Zhen Zhao, Jing Xiong, Yazhao Li, Jian Liu, Jianmei Li
The catalytic performance in heterogeneous catalytic reactions consisting of solid reactants is strongly dependent on the nanostructure of the catalysts. Metal-oxides core-shell (MOCS) nanostructures have potential to enhance the catalytic activity for soot oxidation reactions as a result of optimizing the density of active sites located at the metal-oxide interface. Here, we report a facile strategy for fabricating nanocatalysts with self-assembled Pt@CeO2-δ-rich core-shell nanoparticles (NPs) supported on three-dimensionally ordered macroporous (3DOM) Ce1-xZrxO2via the in situ colloidal crystal template (CCT) method...
March 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28321052/saline-infusion-test-highly-associated-with-the-incidence-of-cardio-and-cerebrovascular-events-in-primary-aldosteronism
#3
Reiko Hayashi, Daisuke Tamada, Masahiko Murata, Kosuke Mukai, Tetsuhiro Kitamura, Michio Otsuki, Iichiro Shimomura
Primary aldosteronism (PA) is caused by excess secretion of aldosterone and is an independent risk factor for cardio-cerebro-vascular (CCV) events. The goal of treatment of PA should include prevention of CCV events. A definitive diagnosis of PA is established by confirmatory tests [saline infusion test (SIT), furosemide upright test (FUT) and captopril challenge test (CCT)]. However, there is no information on whether the hormone levels measured by these confirmatory tests are associated with CCV events. The aim of this retrospective study was to elucidate the relationship between the results of the above confirmatory tests and prevalence of CCV disease in patients with PA...
March 18, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28317673/effect-of-balanced-phacoemulsification-tip-on-the-outcomes-of-torsional-phacoemulsification-using-an-active-fluidics%C3%A2-system
#4
Sudarshan Khokhar, Neelima Aron, Sagnik Sen, Ganesh Pillay, Esha Agarwal
PURPOSE: To compare the outcomes of torsional phacoemulsification with a new balanced tip (Intrepid) and a conventional tip (Kelman) using a single active-fluidics torsional phacoemulsification machine (Centurion). SETTING: Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India. DESIGN: Prospective comparative case-control study. METHODS: Patients with senile cataract had torsional phacoemulsification with the Kelman conventional tip or the new Intrepid balanced tip using the active-fluidics torsional machine...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28316267/efficacy-of-a-computer-based-cognitive-training-program-in-older-people-with-subjective-memory-complaints-a-randomized-study
#5
Angela J Pereira-Morales, Andrés F Cruz Salinas, Jairo Aponte Melo, Francisco Pereira Manrique
OBJECTIVE: the aim of this study was to investigate the effect of computer-assisted cognitive training in healthy older adults with subjective memory complaints. METHODS: 40 older adults, mean age (standard Deviation) = 66.4 (5.6) with subjective memory complaints, were included in this study. Participants were randomly assigned to an Integrated Psychostimulation Program (IPP) (N = 17), a Computerized Cognitive Training (CCT) (N = 12) or a control group (N = 11)...
March 20, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28316155/-reevaluation-of-the-methodological-quality-in-meta-analyses-of-accelerated-rehabilitation-on-recovery-after-surgery-for-colorectal-cancer
#6
S N Ding, H Y Pan, J G Zhang
Objective: To evaluate the methodological quality and impacts on outcomes for systematic reviews (SRs) of accelerated rehabilitation versus traditional control for colorectal surgery. Methods: We comprehensively searched six databases and additional websites to collect SRs, or meta-analysis from inception to July 2016. The Overview Quality Assessment Questionnaire (OQAQ) was applied for quality assessment of the included studies, the tools recommended by the Cochrane Collaboration was applied for quality assessment for RCT and CCT and the Newcastle-Ottawa Scale (NOS) was applied to assess observational study...
March 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28306352/evaluation-of-the-tear-function-tests-and-the-ocular-surface-in-first-time-users-of-silicone-hydrogel-contact-lenses
#7
Yelda Yildiz Tasci, Canan Gürdal, Ozge Sarac, Aykut Onusever
PURPOSE: To evaluate the effects of three different silicone hydrogel contact lenses (SHCL), (balafilcon A, senofilcon A, and comfilcon A) on tear function tests, corneal thickness, and ocular surface cytology in first time contact lens users. MATERIALS AND METHODS: In this prospective study, 120 eyes of 60 subjects were evaluated. Balafilcon A users were designated as group 1, senofilcon A users as group 2, and comfilcon A users as group 3. In all cases, before and after 6 months of contact lens wear, ocular surface disease index score (OSDI), tear breakup time (TBUT), Schirmer 1 test, central corneal thickness (CCT), central corneal epithelium thickness (CCET), and conjunctival impression cytology samples were evaluated...
March 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28306254/white-light-emission-and-structural-distortion-in-new-corrugated-2d-lead-bromide-perovskites
#8
Lingling Mao, Yilei Wu, Constantinos C Stoumpos, Michael R Wasielewski, Mercouri G Kanatzidis
Hybrid inorganic-organic perovskites are developing rapidly as high performance semiconductors. Recently, two-dimensional (2D) perovskites were found to have white-light, broadband emission in the visible range and was attributed mainly to the role of self-trapped excitons (STEs). Here, we describe three new 2D lead bromide perovskites incorporating a series of bifunctional ammonium di-cations as templates which also emit white light: 1) α-(DMEN)PbBr4 (DMEN = 2-(Dimethylamino)ethylamine), which adopts a unique corrugated layered structure in space group Pbca with unit cell a =18...
March 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28303578/compulsory-community-and-involuntary-outpatient-treatment-for-people-with-severe-mental-disorders
#9
REVIEW
Steve R Kisely, Leslie A Campbell, Richard O'Reilly
BACKGROUND: It is controversial whether compulsory community treatment (CCT) for people with severe mental illness (SMI) reduces health service use, or improves clinical outcome and social functioning. OBJECTIVES: To examine the effectiveness of compulsory community treatment (CCT) for people with severe mental illness (SMI). SEARCH METHODS: We searched the Cochrane Schizophrenia Group's Study-Based Register of Trials (2003, 2008, 2012, 8 November 2013, 3 June 2016)...
March 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28300735/comparison-of-femtosecond-laser-assisted-descemetic-and-predescemetic-lamellar-keratoplasty-for-keratoconus
#10
Yan Lu, Ana Beatriz Diniz Grisolia, Yi-Rui Ge, Chun-Yan Xue, Qian Cao, Li-Ping Yang, Zhen-Ping Huang
PURPOSE: The purpose of this study is to compare the outcomes following femtosecond laser-assisted deep anterior lamellar keratoplasty (DALK) with 75% of stromal dissection (predescemetic group) and femtosecond laser-assisted DALK using big-bubble technique with total stromal resection (descemetic group) for the treatment of keratoconus. SUBJECTS AND METHODS: Twenty eyes of 17 patients with keratoconus were studied. There were 10 eyes of 9 patients in predescemetic group and 10 eyes of 8 patients in descemetic group...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28299003/comparison-between-two-scheimpflug-anterior-segment-analyzers
#11
Alireza Baradaran-Rafii, Tahmineh Motevasseli, Forouzan Yazdizadeh, Farid Karimian, Sahba Fekri, Amir Baradaran-Rafii
PURPOSE: To compare the anterior segment indices measured by two Scheimpflug camera machines; Galilei and Pentacam. METHODS: In this observational case series, the anterior segment indices of myopic healthy subjects seeking for refractive surgery were measured by Pentacam and Galilei on the same day. Analyzed parameters were anterior and posterior best fit spheres (BFS), axial curvature, true corneal power, central corneal thickness (CCT), anterior chamber (AC) depth, AC volume, AC angle, and pupil diameter...
January 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28295377/time-restricted-feeding-for-prevention-and-treatment-of-cardiometabolic-disorders
#12
Girish C Melkani, Satchidananda Panda
The soaring prevalence of obesity and diabetes is associated with an increase in comorbidities, including elevated risk for cardiovascular diseases (CVD). CVDs continue to be among the leading causes of death and disability in the United States. While increased nutrition intake from an energy dense diet is known to disrupt metabolic homeostasis and contributes to the disease risk, circadian rhythm disruption is emerging as a new risk factor for CVD. Circadian rhythms coordinate cardiovascular health via temporal control of organismal metabolism and physiology...
March 10, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28283279/randomized-controlled-trial-comparing-transepithelial-corneal-cross-linking-using-iontophoresis-with-the-dresden-protocol-in-progressive-keratoconus
#13
Marco Lombardo, Daniela Giannini, Giuseppe Lombardo, Sebastiano Serrao
PURPOSE: To compare clinical outcomes of transepithelial corneal cross-linking using iontophoresis (T-ionto CL) and standard corneal cross-linking (standard CL) for the treatment of progressive keratoconus 12 months after the operation. DESIGN: Prospective randomized controlled clinical trial. PARTICIPANTS: Thirty-four eyes of 25 participants with progressive keratoconus were randomized into T-ionto CL (22 eyes) or standard CL (12 eyes). METHODS: T-ionto CL was performed using an iontophoresis device with dextran-free 0...
March 7, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28280298/corneal-endothelium-and-central-corneal-thickness-changes-in-type-2-diabetes-mellitus
#14
Amira El-Agamy, Shams Alsubaie
PURPOSE: This study was conducted to compare the corneal endothelial cell density (ECD), morphological features, and central corneal thickness (CCT) in type 2 diabetes mellitus (DM) with age-matched, nondiabetic control subjects using EM-3000 Specular Microscope. STUDY DESIGN: This was a prospective, hospital-based, nonrandomized, case-control, observational, and quantitative study. SUBJECTS AND METHODS: The study included 57 patients (57 eyes) with type 2 DM and 45 control (nondiabetic) subjects (45 eyes)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28275561/computed-tomography-in-congenital-heart-disease-how-generic-principles-can-be-applied-to-create-bespoke-protocols-in-the-fontan-circuit
#15
REVIEW
Will W Loughborough, Michael Yeong, Mark Hamilton, Nathan Manghat
Cardiac computed tomography (CCT) has become an invaluable cross-sectional imaging modality in congenital heart disease (CHD) patients. However, altered anatomical connections and cardiovascular physiology makes CHD arguably the most challenging area in CCT imaging, which remains a complimentary modality to cardiac magnetic resonance and echocardiography. A bespoke CT protocol is often required to achieve a diagnostic examination; this can be achieved through careful consideration of the basic principles of image acquisition and contrast administration...
February 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28274904/gender-specific-combination-hiv-prevention-for-youth-in-high-burden-settings-the-mp3-youth-observational-pilot-study-protocol
#16
Jasmine Buttolph, Irene Inwani, Kawango Agot, Charles M Cleland, Peter Cherutich, James N Kiarie, Alfred Osoti, Connie L Celum, Jared M Baeten, Ruth Nduati, John Kinuthia, Timothy B Hallett, Ramzi Alsallaq, Ann E Kurth
BACKGROUND: Nearly three decades into the epidemic, sub-Saharan Africa (SSA) remains the region most heavily affected by human immunodeficiency virus (HIV), with nearly 70% of the 34 million people living with HIV globally residing in the region. In SSA, female and male youth (15 to 24 years) are at a disproportionately high risk of HIV infection compared to adults. As such, there is a need to target HIV prevention strategies to youth and to tailor them to a gender-specific context. This protocol describes the process for the multi-staged approach in the design of the MP3 Youth pilot study, a gender-specific, combination, HIV prevention intervention for youth in Kenya...
March 8, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28273575/a-recycled-environmental-friendly-flame-retardant-by-modifying-para-aramid-fiber-with-phosphorus-acid-for-thermoplastic-polyurethane-elastomer
#17
Xilei Chen, Wenduo Wang, Chuanmei Jiao
The application of fibers is more and more extensive, and the pollution caused by abandoned fibers is getting more serious, which has aroused wide attention. So it is necessary to find a way to solve the problem. In this paper, the para-aramid fiber (AF) was recycled and modified by phosphoric acid, and then was applied as environmental friendly flame retardant for thermoplastic polyurethane elastomer (TPU). The flame retardant properties of TPU were tested using cone calorimeter test (CCT) and thermogravimetric/Fourier transform infrared spectroscopy (TG-IR)...
February 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28272834/urate-oxidase-for-the-prevention-and-treatment-of-tumour-lysis-syndrome-in-children-with-cancer
#18
REVIEW
Daniel Kl Cheuk, Alan Ks Chiang, Godfrey Cf Chan, Shau Yin Ha
BACKGROUND: Tumour lysis syndrome (TLS) is a serious complication of malignancies and can result in renal failure or death. Previous reviews did not find clear evidence of benefit of urate oxidase in children with cancer. This review is the second update of a previously published Cochrane review. OBJECTIVES: To assess the effects and safety of urate oxidase for the prevention and treatment of TLS in children with malignancies. SEARCH METHODS: In March 2016 we searched CENTRAL, MEDLINE, Embase, and CINAHL...
March 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28271710/solution-processed-cuins2-based-white-qd-leds-with-mixed-active-layer-architecture
#19
Svenja Wepfer, Julia Frohleiks, A-Ra Hong, Ho Seong Jang, Gerd Bacher, Ekaterina Nannen
Colloidal quantum dots (QDs) are attractive candidates for future lighting technology. However, in contrast to display applications, the realization of balanced white lighting devices remains conceptually challenging. Here we demonstrate two-component white light-emitting QD-LEDs with high color rendering indices (CRI) up to 78. The implementation of orange CuInS2/ZnS (CIS/ZnS) QDs with a broad emission and high quantum yield together with blue ZnCdSe/ZnS QDs in a mixed approach allowed white light emission with low blue QD content...
March 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28268756/3d-force-torque-characterization-of-emergency-cricothyroidotomy-procedure-using-an-instrumented-scalpel
#20
Adam Ryason, Ganesh Sankaranarayanan, Kathryn L Butler, Marc DeMoya, Suvranu De
Emergency Cricothyroidotomy (CCT) is a surgical procedure performed to secure a patient's airway. This high-stakes, but seldom-performed procedure is an ideal candidate for a virtual reality simulator to enhance physician training. For the first time, this study characterizes the force/torque characteristics of the cricothyroidotomy procedure, to guide development of a virtual reality CCT simulator for use in medical training. We analyze the upper force and torque thresholds experienced at the human-scalpel interface...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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