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https://www.readbyqxmd.com/read/28937742/inorganic-nanoparticles-metal-organic-framework-hybrid-membrane-reactors-for-efficient-photocatalytic-conversion-of-co2
#1
James Wainaina Maina, Jurg Schutz, Luke Grundy, Elise Des Ligneris, Zhifeng Yi, Lingxue Kong, Cristina Pozo-Gonzalo, Mihail Ionescu, Ludovic F Dumée
Photocatalytic conversion of carbon dioxide (CO2) to useful products has potential to address the adverse environmental impact of global warming. However, most photocatalysts used to date exhibit limited catalytic performance, due to poor CO2 adsorption capacity, inability to efficiently generate photoexcited electrons, and/or poor transfer of the photo-generated electrons to CO2 molecules adsorbed on the catalyst surface. The integration of inorganic semiconductor nanoparticles across metal organic framework (MOF) materials has potential to yield new hybrid materials, combining high CO2 adsorption capacity of MOF and the ability of the semiconductor nanoparticles to generate photoexcited electrons...
September 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28936953/-clinical-value-of-angiogenin-in-predicting-the-prognosis-of-patients-with-idiopathic-pulmonary-fibrosis
#2
Yanling Bai, Haiyan Zhu, Qiyu Sun, Guozhong Gu, Lingyu Zhang, Ying Li, Baofeng Yang
OBJECTIVE: To explore the relationship between angiogenin-1/2 (Ang-1/2) and clinical parameters of idiopathic pulmonary fibrosis (IPF), and to assess the value of Ang-1/2 in predicting the prognosis of patients with IPF. METHODS: A retrospective analysis was conducted. Ninety-one patients diagnosed as IPF by high resolution CT (HRCT) and lung biopsy admitted to Daqing Oil Field General Hospital from March 2014 to January 2015 were enrolled. The general data, serum parameters and pulmonary function parameters of all patients were collected...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28935460/myocardial-fibrosis-detected-by-magnetic-resonance-in-systemic-sclerosis-patients-relationship-with-biochemical-and-echocardiography-parameters
#3
Milan Hromádka, Jitka Seidlerová, David Suchý, Daniel Rajdl, Jan Lhotský, Jaroslav Ludvík, Richard Rokyta, Jan Baxa
OBJECTIVES: Systemic scleroderma (SSc) is a rare connective tissue disease presenting with fibrosis affecting skin and internal organs. Cardiovascular magnetic resonance (CMR) with quantification of extracellular volume (ECV) and T1 mapping might help to detect heart involvement. We aimed to evaluate whether myocardial involvement correlates with functional and laboratory parameters. METHODS: Thirty-three asymptomatic SSc patients (29 women, aged 56.6±12.2years) and 20 controls (10 women, 53...
September 18, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28933559/-parallel-investigations-of-blood-and-alveolar-air-in-the-diagnosis-of-lethal-carbon-monoxide-poisoning
#4
Miroslav Bauer, Jiřina Bauerová, Peter Očko, Jozef Šidlo
Carbon monoxide poisonings are the most frequent among fatal gas and volatile substances intoxications. The authors present diagnostic options of fatal carbon monoxide poisoning by parallel blood investigations for the content of karbonylhaemoglobin and determining of the concentration of carbon monoxide in the alveolar air. The analysis of 160 cases of lethal poisonings with carbon monoxide over a period of 20 years was carried out. The cases were divided into subgroups according to the place of death to poisonings in flats, garages, bathrooms, in fires, road traffic accidents and mining accidents...
2017: Soudní Lékarství
https://www.readbyqxmd.com/read/28932558/results-of-quantitative-chest-ct-in-chronic-pulmonary-graft-vs-host-disease-cgvhd-3-years-after-allogeneic-stem-cell-transplantation
#5
Christopher Kloth, Wolfgang M Thaiss, Jürgen Hetzel, Georg Bier, Stefan Wirths, Konstantin Nikolaou, Marius Horger
BACKGROUND: To quantify lung parenchymal changes in symptomatic patients with chronic pulmonary graft-versus-host disease 3 years after allogeneic stem cell transplantation (allo-SCT) by means of CT-densitometry (CTD) and to compare results with those of established pulmonary function tests (PFT). METHODS: The study group consisted of 26 patients with pulmonary cGvHD (19 males, 7 females; mean age, 49.29±15.89; range, 19-72 years). The diagnosis was based on clinical symptoms, PFT and chest-CT findings...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28930186/the-effect-of-copper-addition-on-the-activity-and-stability-of-iron-based-co%C3%A2-hydrogenation-catalysts
#6
Matthew J Bradley, Ramagopal Ananth, Heather D Willauer, Jeffrey W Baldwin, Dennis R Hardy, Frederick W Williams
Iron-based CO₂ catalysts have shown promise as a viable route to the production of olefins from CO₂ and H₂ gas. However, these catalysts can suffer from low conversion and high methane selectivity, as well as being particularly vulnerable to water produced during the reaction. In an effort to improve both the activity and durability of iron-based catalysts on an alumina support, copper (10-30%) has been added to the catalyst matrix. In this paper, the effects of copper addition on the catalyst activity and morphology are examined...
September 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28929225/prediction-of-survival-by-texture-based-automated-quantitative-assessment-of-regional-disease-patterns-on-ct-in-idiopathic-pulmonary-fibrosis
#7
Sang Min Lee, Joon Beom Seo, Sang Young Oh, Tae Hoon Kim, Jin Woo Song, Sang Min Lee, Namkug Kim
OBJECTIVES: To retrospectively investigate whether the baseline extent and 1-year change in regional disease patterns on CT can predict survival of patients with idiopathic pulmonary fibrosis (IPF). METHODS: A total of 144 IPF patients with CT scans at the time of diagnosis and 1 year later were included. The extents of five regional disease patterns were quantified using an in-house texture-based automated system. The fibrosis score was defined as the sum of the extent of honeycombing and reticular opacity...
September 19, 2017: European Radiology
https://www.readbyqxmd.com/read/28927489/role-of-exhaled-nasal-nitric-oxide-in-distinguishing-between-chronic-rhinosinusitis-with-and-without-nasal-polyps
#8
(no author information available yet)
BACKGROUND: Chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP) nasal polypsis a global health concern. Several clinical biomarkers, such as inhaled carbon monoxide and exhaled nitric oxide (NO), have been studied to assess the presence and degree of inflammation in the airway mucosa. OBJECTIVE: To evaluate the clinical application of exhaled nasal NO (nNO) in distinguishing between CRSwNP and CRSsNP in consideration of the atopic status of patients...
September 19, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28926373/exposure-to-mobile-source-air-pollution-in-early-life-and-childhood-asthma-incidence-the-kaiser-air-pollution-and-pediatric-asthma-study
#9
Audrey Flak Pennington, Matthew J Strickland, Mitchel Klein, Xinxin Zhai, Josephine T Bates, Carolyn Drews-Botsch, Craig Hansen, Armistead G Russell, Paige E Tolbert, Lyndsey A Darrow
BACKGROUND: Early-life exposure to traffic-related air pollution exacerbates childhood asthma, but it is unclear what role it plays in asthma development. METHODS: The association between exposure to primary mobile source pollutants during pregnancy and during infancy and asthma incidence by ages 2 through 6 was examined in the Kaiser Air Pollution and Pediatric Asthma Study, a racially diverse birth cohort of 24,608 children born between 2000 and 2010 and insured by Kaiser Permanente Georgia...
September 18, 2017: Epidemiology
https://www.readbyqxmd.com/read/28925883/novel-therapeutics-in-glaucoma-management
#10
Claudio Bucolo, Chiara Bianca Maria Platania, Filippo Drago, Michele Reibaldi, Vincenza Bonfiglio, Teresio Avitabile, Maurizio Uva
Glaucoma is a progressive optic neuropathy characterized by retinal ganglion cell death and alterations of visual field. Elevated intraocular pressure (IOP) is considered the main risk factor of glaucoma, even though other factors cannot be ruled out, such as epigenetic mechanisms. An overview of the ultimate promising experimental drugs to manage glaucoma has been provided. In particular, we have focused on purinergic ligands, KATP channel activators, gases (nitric oxide, carbon monoxide and hydrogen sulfide), non-glucocorticoid steroidal compounds, neurotrophic factors, PI3K/Akt activators, citicoline, histone deacetylase inhibitors, cannabinoids, dopamine and serotonin receptors ligands, small interference RNA, and Rho kinase inhibitors...
September 15, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28923990/twenty-year-predictors-of-peripheral-arterial-disease-compared-with-coronary-heart-disease-in-the-scottish-heart-health-extended-cohort-shhec
#11
Hugh Tunstall-Pedoe, Sanne A E Peters, Mark Woodward, Allan D Struthers, Jill J F Belch
BACKGROUND: Coronary heart disease and peripheral arterial disease (PAD) affect different vascular territories. Supplementing baseline findings with assays from stored serum, we compared their 20-year predictors. METHODS AND RESULTS: We randomly recruited 15 737 disease-free men and women aged 30 to 75 years across Scotland between 1984 and 1995 and followed them through 2009 for death and hospital diagnoses. Of these, 3098 developed coronary heart disease (19...
September 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28922643/vacuum-ultraviolet-photoabsorption-of-prime-ice-analogues-of-pluto-and-charon
#12
S Pavithraa, J-I Lo, K Rahul, B N Raja Sekhar, B-M Cheng, N J Mason, B Sivaraman
Here we present the first Vacuum UltraViolet (VUV) photoabsorption spectra of ice analogues of Pluto and Charon ice mixtures. For Pluto the ice analogue is an icy mixture containing nitrogen (N2), carbon monoxide (CO), methane (CH4) and water (H2O) prepared with a 100:1:1:3 ratio, respectively. Photoabsorption of icy mixtures with and without H2O were recorded and no significant changes in the spectra due to presence of H2O were observed. For Charon a VUV photoabsorption spectra of an ice analogue containing ammonia (NH3) and H2O prepared with a 1:1 ratio was recorded, a spectrum of ammonium hydroxide (NH4OH) was also recorded...
August 26, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28922195/dispositional-mindful-attention-in-relation-to-negative-affect-tobacco-withdrawal-and-expired-carbon-monoxide-on-and-after-quit-day
#13
Daniel J Paulus, Kirsten J Langdon, David W Wetter, Michael J Zvolensky
BACKGROUND: Mindfulness (or "Mindful Attention") has been described as the presence or absence of attention to, and awareness of, what is occurring in the present moment. Among smokers, greater mindfulness is associated with greater effect stability and reduced cue-induced craving. While studies have shown that mindfulness is associated with other smoking-related factors such as reduced withdrawal symptoms using cross-sectional data, relatively little is known about the associations between baseline mindful attention and future abstinence-related effect/withdrawal...
September 15, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28919734/usefulness-of-the-desaturation-distance-ratio-from-the-six-minute-walk-test-for-patients-with-copd
#14
Yukari Fujimoto, Yutaro Oki, Masahiro Kaneko, Hideki Sakai, Shogo Misu, Takumi Yamaguchi, Yuji Mitani, Hisafumi Yasuda, Akira Ishikawa
PURPOSE: A straightforward, noninvasive method is needed to assess emphysema and pulmonary hypertension (PH) in COPD patients. The desaturation-distance ratio (DDR) is an index derived from the distance traveled and level of desaturation during a six-minute walk test (6MWT); it has previously been shown to be associated with percentage of forced expiratory volume in the first second of expiration (%FEV1.0) and percentage of diffusion capacity of the lung for carbon monoxide (%DLCO). The aim of this study was to examine the associations between DDR and emphysema and PH...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28919500/hydrogen-and-oxygen-trapping-at-the-h-cluster-of-fefe-%C3%A2-hydrogenase-revealed-by-site-selective-spectroscopy-and-qm-mm-calculations
#15
Stefan Mebs, Ramona Kositzki, Jifu Duan, Moritz Senger, Florian Wittkamp, Ulf-Peter Apfel, Thomas Happe, Sven T Stripp, Martin Winkler, Michael Haumann
[FeFe]‑hydrogenases are superior hydrogen conversion catalysts. They bind a cofactor (H-cluster) comprising a four‑iron and a diiron unit with three carbon monoxide (CO) and two cyanide (CN(-)) ligands. Hydrogen (H2) and oxygen (O2) binding at the H-cluster was studied in the C169A variant of [FeFe]‑hydrogenase HYDA1, in comparison to the active oxidized (Hox) and CO-inhibited (Hox-CO) species in wildtype enzyme. (57)Fe labeling of the diiron site was achieved by in vitro maturation with a synthetic cofactor analogue...
September 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28917171/ambient-air-pollution-and-daily-hospital-admissions-for-mental-disorders-in-shanghai-china
#16
Chen Chen, Cong Liu, Renjie Chen, Weibing Wang, Weihua Li, Haidong Kan, Chaowei Fu
Few studies have investigated the associations between ambient air pollution and mental disorders (MDs), especially in developing countries. We conducted a time-series study to explore the associations between six criteria air pollutants and daily hospital admissions for MDs in Shanghai, China, from 2013 to 2015. The MDs data were derived from the Shanghai Health Insurance System. We used over-dispersed, generalized additive models to estimate the associations after controlling for time trend, weather conditions, day of the week, and holidays...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28915540/impact-of-partial-fuel-switch-on-household-air-pollutants-in-sub-sahara-africa
#17
Vianney Tumwesige, Gabriel Okello, Sean Semple, Jo Smith
Over 700 million people in Sub-Saharan Africa depend on solid biomass fuel and use simple cookstoves in poorly ventilated kitchens, which results in high indoor concentrations of household air pollutants. Switching from biomass to biogas as a cooking fuel can reduce airborne emissions of fine particulate matter (PM2.5) and carbon monoxide (CO), but households often only partially convert to biogas, continuing to use solid biomass fuels for part of their daily cooking needs. There is little evidence of the benefits of partial switching to biogas...
September 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28915226/pulmonary-vascular-function-and-aerobic-exercise-capacity-at-moderate-altitude
#18
Vitalie Faoro, Gael Deboeck, Marco Vicenzi, Anne-Fleur Gaston, Bamodi Simaga, Grégory Doucende, Ilona Hapkova, Emma Roca, Enric Subirats, Fabienne Durand, Robert Naeije
PURPOSE: There has been suggestion that a greater "pulmonary vascular reserve" defined by a low pulmonary vascular resistance (PVR) and a high lung diffusing capacity (DL) allow for a superior aerobic exercise capacity. How pulmonary vascular reserve might affect exercise capacity at moderate altitude is not known. METHODS: Thirty-eight healthy subjects underwent an exercise stress echocardiography of the pulmonary circulation, combined with measurements of DL for nitric oxide (NO) and carbon monoxide (CO) and a cardiopulmonary exercise test at sea level and at an altitude of 2250 m...
October 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28911664/smog-induces-oxidative-stress-and-microbiota-disruption
#19
REVIEW
Tit-Yee Wong
Smog is created through the interactions between pollutants in the air, fog, and sunlight. Air pollutants, such as carbon monoxide, heavy metals, nitrogen oxides, ozone, sulfur dioxide, volatile organic vapors, and particulate matters, can induce oxidative stress in human directly or indirectly through the formation of reactive oxygen species. The outermost boundary of human skin and mucous layers are covered by a complex network of human-associated microbes. The relation between these microbial communities and their human host are mostly mutualistic...
April 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911026/response-to-using-carbon-monoxide-releasing-molecules-in-models-of-pre-eclampsia-when-should-we-be-monitoring-vascular-effects
#20
Eric M George, Joey P Granger
No abstract text is available yet for this article.
October 1, 2017: American Journal of Hypertension
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