ORCID Profile
0000-0003-2098-3844
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Brown University
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Publisher: Elsevier BV
Date: 06-2015
Publisher: Wiley
Date: 14-08-2018
DOI: 10.1002/APJ.2239
Publisher: American College of Physicians
Date: 16-01-2001
DOI: 10.7326/0003-4819-134-2-200101160-00009
Abstract: Increased physical activity has been associated with reduced risk for cardiovascular disease in the general population, but data are limited on its role among persons with type 2 diabetes mellitus. To determine whether physical activity decreases risk for cardiovascular disease among diabetic women. Prospective cohort study. The Nurses' Health Study. 5125 female nurses with diabetes. Physical activity was first assessed in 1980 and was updated in 1982, 1986, 1988, and 1992 through validated questionnaires. Average hours of moderate or vigorous exercise and a metabolic equivalent of task (MET) score were computed. During 14 years of follow-up (31 432 person-years), 323 new cases of cardiovascular disease were documented (225 cases of coronary heart disease and 98 cases of stroke). The age-adjusted relative risks according to average hours of moderate or vigorous activity per week ( /=7) were 1.0, 0.93 (95% CI, 0.69 to 1.26), 0.82 (CI, 0.61 to 1.10), 0.54 (CI, 0.39 to 0.76), and 0.52 (CI, 0.25 to 1.09) (P < 0.001 for trend). These figures did not change materially after adjustment for smoking, body mass index, and other cardiovascular risk factors (1.0, 1.02, 0.87, 0.61, and 0.55, respectively P = 0.001 for trend). In separate analyses, levels of physical activity were inversely associated with coronary heart disease and ischemic stroke. Among women who did not exercise vigorously, the multivariate relative risks for cardiovascular disease across quartiles of MET score for walking were 1.0, 0.85, 0.63, and 0.56 (P = 0.03 for trend). Faster usual walking pace was independently associated with lower risk. Among diabetic women, increased physical activity, including regular walking, is associated with substantially reduced risk for cardiovascular events.
Publisher: Elsevier BV
Date: 12-2017
Publisher: Elsevier BV
Date: 02-2012
Publisher: Springer Science and Business Media LLC
Date: 31-05-2021
Publisher: Wiley
Date: 07-04-2019
Publisher: Elsevier BV
Date: 31-10-2015
Publisher: Oxford University Press (OUP)
Date: 04-09-2002
Abstract: Evidence from both animal and human studies suggests that abnormal glucose metabolism plays an important role in pancreatic carcinogenesis. We investigated whether diets high in foods that increase postprandial glucose levels are associated with an increased risk of pancreatic cancer. In a cohort of U.S. women (n = 88 802) participating in the Nurses' Health Study, 180 case subjects with pancreatic cancer were diagnosed during 18 years of follow-up. We used frequency of intake of in idual foods as reported on a food-frequency questionnaire in 1980 to calculate sucrose, fructose, and carbohydrate intakes glycemic index (postprandial blood glucose response as compared with a reference food) and glycemic load (glycemic index multiplied by carbohydrate content). Analyses of relative risk (RR) were performed by using multivariable Cox proportional hazards models to adjust for potential confounders. All statistical tests were two-sided. Carbohydrate and sucrose intake were not associated with overall pancreatic cancer risk in this cohort. A statistically nonsignificant 53% increase in risk of pancreatic cancer (RR = 1.53, 95% confidence interval [CI] = 0.96 to 2.45) was observed among women with a high glycemic load intake, and a similar association was observed for fructose intake (RR = 1.57, 95% CI = 0.95 to 2.57). The associations of glycemic load and fructose intakes with pancreatic cancer risk were most apparent among women with elevated body mass index (>or=25 kg/m(2)) or with low physical activity. Among women who were both overweight and sedentary, a high glycemic load was associated with an RR of 2.67 (95% CI = 1.02 to 6.99 highest versus lowest quartile of intake P for trend =.03), and high fructose was associated with an RR of 3.17 (95% CI = 1.13 to 8.91 P for trend =.04). Our data support other findings that impaired glucose metabolism may play a role in pancreatic cancer etiology. A diet high in glycemic load may increase the risk of pancreatic cancer in women who already have an underlying degree of insulin resistance.
Publisher: Springer Science and Business Media LLC
Date: 17-12-2015
DOI: 10.1038/NCOMMS10257
Abstract: Nature Communications 6, Article number: 7756 (2015) Published 4 August 2015 Updated 17 December 2015 In the Results section and in the legend of Table 1 of this Article, the company deCODE genetics, Inc. is incorrectly referred to as ‘Diabetes Epidemiology: collaborative analysis of Diagnostic criteria in Europe’.
Publisher: Elsevier BV
Date: 15-09-2007
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11427A
Publisher: American Chemical Society (ACS)
Date: 13-06-2018
Publisher: Elsevier BV
Date: 04-2019
Publisher: Elsevier BV
Date: 08-2012
Publisher: Elsevier BV
Date: 10-2018
Publisher: American Chemical Society (ACS)
Date: 22-08-2019
Abstract: The maximization of the numbers of exposed active sites in supported metal catalysts is important to achieve high reaction activity. In this work, a simple strategy for anchoring single atom Fe on SBA-15 to expose utmost Fe active sites was proposed. Iron salts were introduced into the as-made SBA-15 containing the template and calcined for simultaneous decomposition of the iron precursor and the template, resulting in single atom Fe sites in the nanopores of SBA-15 catalysts (SAFe-SBA). X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), and extended X-ray absorption fine structure (EXAFS) imply the presence of single atom Fe sites. Furthermore, EXAFS analysis suggests the structure of one Fe center with four O atoms, and density functional theory calculations (DFT) simulate this structure. The catalytic performances of SAFe-SBA were evaluated in Fenton-like catalytic oxidation of
Publisher: MDPI AG
Date: 05-06-2019
DOI: 10.3390/NU11061280
Abstract: Published meta-analyses indicate significant but inconsistent incident type-2 diabetes (T2D)-dietary glycemic index (GI) and glycemic load (GL) risk ratios or risk relations (RR). It is now over a decade ago that a published meta-analysis used a predefined standard to identify valid studies. Considering valid studies only, and using random effects dose–response meta-analysis (DRM) while withdrawing spurious results (p 0.05), we ascertained whether these relations would support nutrition guidance, specifically for an RR 1.20 with a lower 95% confidence limit .10 across typical intakes (approximately 10th to 90th percentiles of population intakes). The combined T2D–GI RR was 1.27 (1.15–1.40) (p 0.001, n = 10 studies) per 10 units GI, while that for the T2D–GL RR was 1.26 (1.15–1.37) (p 0.001, n = 15) per 80 g/d GL in a 2000 kcal (8400 kJ) diet. The corresponding global DRM using restricted cubic splines were 1.87 (1.56–2.25) (p 0.001, n = 10) and 1.89 (1.66–2.16) (p 0.001, n = 15) from 47.6 to 76.1 units GI and 73 to 257 g/d GL in a 2000 kcal diet, respectively. In conclusion, among adults initially in good health, diets higher in GI or GL were robustly associated with incident T2D. Together with mechanistic and other data, this supports that consideration should be given to these dietary risk factors in nutrition advice. Concerning the public health relevance at the global level, our evidence indicates that GI and GL are substantial food markers predicting the development of T2D worldwide, for persons of European ancestry and of East Asian ancestry.
Publisher: Elsevier BV
Date: 11-2018
Publisher: Elsevier BV
Date: 05-2011
Publisher: Elsevier BV
Date: 07-2015
Publisher: Elsevier BV
Date: 08-2018
Publisher: Elsevier BV
Date: 07-2011
Publisher: Elsevier BV
Date: 10-2019
Publisher: Elsevier BV
Date: 08-2014
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 18-02-2010
Publisher: Elsevier BV
Date: 07-2011
Publisher: Elsevier BV
Date: 12-2015
Publisher: Springer Science and Business Media LLC
Date: 17-01-2020
DOI: 10.1007/S40820-019-0358-X
Abstract: Metals and metal oxides are widely used as photo/electro-catalysts for environmental remediation. However, there are many issues related to these metal-based catalysts for practical applications, such as high cost and detrimental environmental impact due to metal leaching. Carbon-based catalysts have the potential to overcome these limitations. In this study, monodisperse nitrogen-doped carbon nanospheres (NCs) were synthesized and loaded onto graphitic carbon nitride (g-C 3 N 4 , GCN) via a facile hydrothermal method for photocatalytic removal of sulfachloropyridazine (SCP). The prepared metal-free GCN-NC exhibited remarkably enhanced efficiency in SCP degradation. The nitrogen content in NC critically influences the physicochemical properties and performances of the resultant hybrids. The optimum nitrogen doping concentration was identified at 6.0 wt%. The SCP removal rates can be improved by a factor of 4.7 and 3.2, under UV and visible lights, by the GCN-NC composite due to the enhanced charge mobility and visible light harvesting. The mechanism of the improved photocatalytic performance and band structure alternation were further investigated by density functional theory (DFT) calculations. The DFT results confirm the high capability of the GCN-NC hybrids to activate the electron–hole pairs by reducing the band gap energy and efficiently separating electron/hole pairs. Superoxide and hydroxyl radicals are subsequently produced, leading to the efficient SCP removal.
Publisher: Elsevier BV
Date: 07-2019
Publisher: Elsevier BV
Date: 05-03-2009
Publisher: Elsevier BV
Date: 2013
Publisher: Elsevier BV
Date: 10-2012
DOI: 10.1016/J.JCIS.2012.05.051
Abstract: With the aim of improving the effective utilization of visible light, the LaVO(4)/TiO(2) heterojunction nanotubes were fabricated by sol-gel coupled with hydrothermal method. The photocatalytic ability was demonstrated through catalytic removal of gaseous toluene species. The nanotube s les were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), surface photovoltage (SPV), Raman spectra and N(2) adsorption-desorption measurements. The characterization results showed that the s les with high specific surface areas were of typical nanotubular morphology, which would lead to the high separation and transfer efficiency of photo induced electron-hole pairs. The as-prepared nanotubes exhibited high photocatalytic activity in decomposing toluene species under visible light irradiation with fine photochemical stability. The enhanced photocatalytic performance of LaVO(4)/TiO(2) nanotubes might be attributed to the matching band potentials, the interconnected heterojunction of LaVO(4) versus TiO(2), and the large specific surface areas of nanotubes.
Publisher: Oxford University Press (OUP)
Date: 03-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0RA00305K
Abstract: MIL-96(Al)–Ca1 shows the highest CO 2 adsorption capacity while MIL-96(Al)–Ca4 displays a distinguished morphology with the highest selectivity of CO 2 /N 2 .
Publisher: Elsevier BV
Date: 12-2007
Publisher: Elsevier BV
Date: 03-2016
Publisher: Elsevier BV
Date: 06-2019
DOI: 10.1016/J.JCIS.2019.03.045
Abstract: Perovskite oxides offer new opportunities in wastewater treatment via catalytic oxidation. Herein, we report a new application of perovskite oxides for biological detection via catalytic decolourisation and colorimetric determination. The presence of trace biomolecules in an aqueous system would interfere the decolourisation process of dyes, where the decolourisation rate is quantitatively correlated to the biomolecular concentration. In this work, trace L-cysteine (Cys) detection was demonstrated on the basis of a Ag-Ba
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4TA00926F
Abstract: The substitution of B-site cations in BaCo 0.7 Fe 0.3 O 3−δ with tin is effective in improving oxygen permeability and stability of the membrane.
Publisher: Elsevier BV
Date: 12-2017
Publisher: American Chemical Society (ACS)
Date: 11-02-2020
Publisher: MDPI AG
Date: 24-08-2020
DOI: 10.3390/NU12092553
Abstract: Dietary fibre is a generic term describing non-absorbed plant carbohydrates and small amounts of associated non-carbohydrate components. The main contributors of fibre to the diet are the cell walls of plant tissues, which are supramolecular polymer networks containing variable proportions of cellulose, hemicelluloses, pectic substances, and non-carbohydrate components, such as lignin. Other contributors of fibre are the intracellular storage oligosaccharides, such as fructans. A distinction needs to be made between intrinsic sources of dietary fibre and purified forms of fibre, given that the three-dimensional matrix of the plant cell wall confers benefits beyond fibre isolates. Movement through the digestive tract modifies the cell wall structure and may affect the interactions with the colonic microbes (e.g., small intestinally non-absorbed carbohydrates are broken down by bacteria to short-chain fatty acids, absorbed by colonocytes). These aspects, combined with the fibre associated components (e.g., micronutrients, polyphenols, phytosterols, and phytoestrogens), may contribute to the health outcomes seen with the consumption of dietary fibre. Therefore, where possible, processing should minimise the degradation of the plant cell wall structures to preserve some of its benefits. Food labelling should include dietary fibre values and distinguish between intrinsic and added fibre. Labelling may also help achieve the recommended intake of 14 g/1000 kcal/day.
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA02921C
Abstract: A hydrogen permeation membrane plays a key role in membrane reactor applications for hydrogen production.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8NR10510C
Abstract: The emergence of microbial fuel cell (MFC) technology that can effectively recycle renewable energy from organic pollutants has been regarded as a promising and environmentally friendly route that could be widely used in numerous fields.
Publisher: Elsevier BV
Date: 02-2019
Publisher: American Chemical Society (ACS)
Date: 23-03-2017
Publisher: Elsevier BV
Date: 07-2003
Publisher: Wiley
Date: 16-10-2007
DOI: 10.1002/AIC.11334
Publisher: IOP Publishing
Date: 09-10-2007
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 02-2018
Publisher: Wiley
Date: 02-08-2012
DOI: 10.1002/WENE.38
Publisher: Public Library of Science (PLoS)
Date: 07-08-2014
Publisher: Elsevier BV
Date: 2015
DOI: 10.1016/J.JCIS.2014.09.061
Abstract: In the present work, the multiphase Ti(x)Zr(1-x)O2 particles containing cubic-phase ZrO2 were fabricated via co-precipitation route. The mole ratios of Ti and Zr elements were controlled by three levels: Ti/Zr=7/3 (maximum), Ti/Zr=5/5 (medium), and Ti/Zr=3/7 (minimum). The materials prepared were characterized by using X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy-dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectra (DRS) and photoluminescence (PL) spectra. For the maximum usage of solar power with fabricated catalysts, elimination of gaseous toluene was chosen as a model to evaluate the performances under visible light. The results indicated that the degradation efficiency of toluene was about 80% after 6 h reaction using Ti(0.3)Zr(0.7)O2 as the photocatalyst. On the other hand, the multiphase Ti(x)Zr(1-x)O2 (x=0.7 or 0.5) photocatalysts showed significant enhancement in the activity, compared with the commercial TiO2 (Degussa P25). The enhanced performances of Ti(x)Zr(1-x)O2 might be attributed to the lower charge recombination rate of photoinduced electron-hole pairs. In addition, some intermediates (the benzaldehyde and benzoic acid) and final product (CO2) adsorbed on the surface of the particles were also detected by using in situ Fourier transform infrared (FTIR) spectroscopy.
Publisher: Elsevier BV
Date: 12-2008
Publisher: Elsevier BV
Date: 09-2006
Publisher: Elsevier BV
Date: 08-2018
Publisher: American Public Health Association
Date: 09-2000
Abstract: OBJECTIVES: This study examined the association between intake of whole vs refined grain and the risk of type 2 diabetes mellitus. METHODS: We used a food frequency questionnaire for repeated dietary assessments to prospectively evaluate the relation between whole-grain intake and the risk of diabetes mellitus in a cohort of 75,521 women aged 38 to 63 years without a previous diagnosis of diabetes or cardiovascular disease in 1984. RESULTS: During the 10-year follow-up, we confirmed 1879 incident cases of diabetes mellitus. When the highest and the lowest quintiles of intake were compared, the age and energy-adjusted relative risks were 0.62 (95% confidence interval [CI] = 0.53, 0.71, P trend .0001) for whole grain, 1.31 (95% CI = 1.12, 1.53, P trend = .0003) for refined grain, and 1.57 (95% CI = 1.36, 1.82, P trend .0001) for the ratio of refined- to whole-grain intake. These findings remained significant in multivariate analyses. The findings were most evident for women with a body mass index greater than 25 and were not entirely explained by dietary fiber, magnesium, and vitamin E. CONCLUSIONS: These findings suggest that substituting whole- for refined-grain products may decrease the risk of diabetes mellitus.
Publisher: Elsevier BV
Date: 04-2019
Publisher: Annual Reviews
Date: 07-06-2018
DOI: 10.1146/ANNUREV-CHEMBIOENG-060817-084225
Abstract: Mesoporous silica nanoparticles (MSNs) are promising functional nanomaterials for a variety of biomedical applications, such as bioimaging, drug/gene delivery, and cancer therapy. This is due to their low density, low toxicity, high biocompatibility, large specific surface areas, and excellent thermal and mechanical stability. The past decade has seen rapid advances in the development of MSNs with multiple compartments. These include hierarchical porous structures and core-shell, yolk-shell, and Janus structured particles for efficient diagnosis and therapeutic applications. We review advances in this area, covering the categories of multicompartment MSNs and their synthesis methods, with an emphasis on hierarchical structures and the incorporation of multiple functions. We classify multicompartment mesoporous silica micro/nanostructures, ranging from core-shell and yolk-shell structures to Janus and raspberry-like nanoparticles, and discuss their synthesis methods. We review applications of these multicompartment MSNs, including bioimaging, targeted drug/gene delivery, chemotherapy, phototherapy, and in vitro diagnostics. We also highlight the latest trends and new opportunities.
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA04345J
Abstract: A dual-phase thin porous decoration layer of Ce 0.9 Gd 0.1 O 2−δ –Ag is applied to improve the Ce 0.9 Gd 0.1 O 2−δ membrane performance via an electronically short-circuited design.
Publisher: Elsevier BV
Date: 09-2011
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 09-2015
DOI: 10.1016/J.NUMECD.2015.05.005
Abstract: The positive and negative health effects of dietary carbohydrates are of interest to both researchers and consumers. International experts on carbohydrate research held a scientific summit in Stresa, Italy, in June 2013 to discuss controversies surrounding the utility of the glycemic index (GI), glycemic load (GL) and glycemic response (GR). The outcome was a scientific consensus statement which recognized the importance of postprandial glycemia in overall health, and the GI as a valid and reproducible method of classifying carbohydrate foods for this purpose. There was consensus that diets low in GI and GL were relevant to the prevention and management of diabetes and coronary heart disease, and probably obesity. Moderate to weak associations were observed for selected cancers. The group affirmed that diets low in GI and GL should always be considered in the context of diets otherwise understood as healthy, complementing additional ways of characterizing carbohydrate foods, such as fiber and whole grain content. Diets of low GI and GL were considered particularly important in in iduals with insulin resistance. Given the high prevalence of diabetes and pre-diabetes worldwide and the consistency of the scientific evidence reviewed, the expert panel confirmed an urgent need to communicate information on GI and GL to the general public and health professionals, through channels such as national dietary guidelines, food composition tables and food labels.
Publisher: Elsevier
Date: 2013
Publisher: Elsevier BV
Date: 07-2011
Publisher: Elsevier BV
Date: 06-2009
Publisher: Elsevier BV
Date: 2013
Publisher: Springer Science and Business Media LLC
Date: 05-10-2004
Abstract: To examine the changes in intake of fruits and vegetables in relation to risk of obesity and weight gain among middle-aged women. Prospective cohort study with 12 y of follow-up conducted in the Nurses' Health Study. A total of 74,063 female nurses aged 38-63 y, who were free of cardiovascular disease, cancer, and diabetes at baseline in 1984. Dietary information was collected using a validated food frequency questionnaire, and body weight and height were self-reported. During the 12-y follow-up, participants tended to gain weight with aging, but those with the largest increase in fruit and vegetable intake had a 24% of lower risk of becoming obese (BMI> or =30 kg/m2) compared with those who had the largest decrease in intake after adjustment for age, physical activity, smoking, total energy intake, and other lifestyle variables (relative risk (RR), 0.76 95% confidence interval (CI), 0.69-0.86 P for trend or =25 kg), women with the largest increase in intake of fruits and vegetables had a 28% lower risk compared to those in the other extreme group (RR, 0.72 95% CI, 0.55-0.93 P=0.01). Similar results were observed for changes in intake of fruits and vegetables when analyzed separately. Our findings suggest that increasing intake of fruits and vegetables may reduce long-term risk of obesity and weight gain among middle-aged women.
Publisher: Elsevier BV
Date: 02-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA04635H
Abstract: Micro-tubular SOFCs have the potential to become light-weight portable auxiliary power units for aircraft or spacecraft.
Publisher: Public Library of Science (PLoS)
Date: 11-2011
Publisher: Elsevier BV
Date: 2014
Publisher: Elsevier BV
Date: 2004
Publisher: Elsevier BV
Date: 09-2002
Abstract: Certain dietary components may play a role in the prevention of type 2 diabetes. We examined prospectively the associations between whole- and refined-grain intake and the risk of type 2 diabetes in a large cohort of men. Men from the Health Professionals Follow-up Study without a history of diabetes or cardiovascular disease in 1986 (n = 42898) were followed for </=12 y. Intakes of whole and refined grains, measured every 4 y by use of food-frequency questionnaires, were used to predict subsequent type 2 diabetes risk through multivariate analysis. We ascertained 1197 cases of incident type 2 diabetes. After adjustment for age physical activity cigarette smoking alcohol consumption family history of diabetes and fruit, vegetable, and energy intakes, the relative risk of type 2 diabetes was 0.58 (95% CI: 0.47, 0.70 P for trend < 0.0001) comparing the highest with the lowest quintile of whole-grain intake. The association was moderately attenuated when additionally adjusted for body mass index (relative risk: 0.70 95% CI: 0.57, 0.85 P for trend = 0.0006). Intake of refined grains was not significantly associated with risk of type 2 diabetes. After further adjustment for magnesium intake, cereal fiber intake, and glycemic load, the association between whole grains and type 2 diabetes was attenuated and the trend no longer significant. In men, a diet high in whole grains is associated with a reduced risk of type 2 diabetes in men that may be mediated by cereal fiber. Efforts should be made to replace refined-grain with whole-grain foods.
Publisher: Wiley
Date: 05-05-2014
Abstract: The potential to use ethanol as a fuel places solid oxide fuel cells (SOFCs) as a sustainable technology for clean energy delivery because of the renewable features of ethanol versus hydrogen. In this work, we developed a new class of anode catalyst exemplified by Ni+BaZr0.4Ce0.4Y0.2O3 (Ni+BZCY) with a water storage capability to overcome the persistent problem of carbon deposition. Ni+BZCY performed very well in catalytic efficiency, water storage capability and coking resistance tests. A stable and high power output was well maintained with a peak power density of 750 mW cm(-2) at 750 °C. The SOFC with the new robust anode performed for seven days without any sign of performance decay, whereas SOFCs with conventional anodes failed in less than 2 h because of significant carbon deposition. Our findings indicate the potential applications of these water storage cermets as catalysts in hydrocarbon reforming and as anodes for SOFCs that operate directly on hydrocarbons.
Publisher: Elsevier BV
Date: 09-2009
Publisher: Elsevier BV
Date: 12-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA10711J
Abstract: Robust oxygen ion conducting membranes based on doped ceria oxides can be used as oxygen permeation membranes with a short circuit to provide the required electronic conduction.
Publisher: Cambridge University Press (CUP)
Date: 11-12-2013
Publisher: Elsevier BV
Date: 10-2019
Publisher: Elsevier BV
Date: 10-2011
Publisher: Wiley
Date: 27-07-2017
Publisher: Elsevier BV
Date: 12-2019
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 2016
Publisher: Elsevier BV
Date: 05-2015
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 06-2019
Publisher: Cold Spring Harbor Laboratory
Date: 10-05-2022
DOI: 10.1101/2022.05.06.22274627
Abstract: HostSeq was launched in April 2020 as a national initiative to integrate whole genome sequencing data from 10,000 Canadians infected with SARS-CoV-2 with clinical information related to their disease experience. The mandate of HostSeq is to support the Canadian and international research communities in their efforts to understand the risk factors for disease and associated health outcomes and support the development of interventions such as vaccines and therapeutics. HostSeq is a collaboration among 13 independent epidemiological studies of SARS-CoV-2 across five provinces in Canada. Aggregated data collected by HostSeq are made available to the public through two data portals: a phenotype portal showing summaries of major variables and their distributions, and a variant search portal enabling queries in a genomic region. In idual-level data is available to the global research community for health research through a Data Access Agreement and Data Access Compliance Office approval. Here we provide an overview of the collective project design along with summary level information for HostSeq. We highlight several statistical considerations for researchers using the HostSeq platform regarding data aggregation, s ling mechanism, covariate adjustment, and X chromosome analysis. In addition to serving as a rich data source, the ersity of study designs, s le sizes, and research objectives among the participating studies provides unique opportunities for the research community.
Publisher: Elsevier BV
Date: 09-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7CY01131H
Abstract: Singlet oxygen has been identified as a contributor to the degradation of contaminants using biosynthesised hollow Ag@AgBr catalysts.
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 27-01-2015
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11447C
Publisher: Elsevier BV
Date: 11-2012
Publisher: Elsevier BV
Date: 12-2011
Publisher: Elsevier BV
Date: 07-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA07254J
Abstract: Reversible storage of carbon dioxide in dolomite using a catalyst allows viable thermal energy storage technology.
Publisher: Wiley
Date: 13-12-2007
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7RA05275H
Abstract: A novel porous Mg scaffold was synthesised and melt-infiltrated with LiBH 4 to simultaneously act as both a confining framework and a destabilising agent for H 2 release from LiBH 4 .
Publisher: Elsevier BV
Date: 03-2011
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 27-01-2015
Publisher: Elsevier BV
Date: 04-2009
Publisher: Wiley
Date: 25-06-2018
DOI: 10.1002/AIC.16332
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TC01008J
Abstract: Mn 0.5 Zn 0.5 Fe 2 O 4 contributes to the enhanced photoelectrochemical properties and photoelectrocatalytic activity of TiO 2 nanotube arrays.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CC00946E
Abstract: In situ formation of CoOH + –hydroxyapatite@C via ion exchange between Ca and Co realises the simultaneous adsorption of Co 2+ and catalytic peroxymonosulfate oxidation for superfast oxidative degradation of organic contaminants.
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3NR34254A
Abstract: Silver nanoparticles are of great interest for use as antimicrobial agents. Studies aimed at producing potent nano-silver biocides have focused on manipulation of particle size, shape, composition and surface charge. Here, we report the cell penetrating peptide catalyzed formation of antimicrobial silver nanoparticles in N,N-dimethylformamide. The novel nano-composite demonstrated a distinctly enhanced biocidal effect toward bacteria (gram-positive Bacillus subtilis, gram-negative Escherichia coli) and pathogenic yeast (Candida albicans), as compared to triangular and extremely small silver nanoparticles. In addition, a satisfactory biocompatibility was verified by a haemolysis test. Our results provide a paradigm in developing strategies that can maximize the silver nanoparticle application potentials while minimizing the toxic effects.
Publisher: Elsevier BV
Date: 03-2018
Publisher: Elsevier BV
Date: 10-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9EN00638A
Abstract: 3D graphene-based macrostructures have been recognized as promising candidates for adsorption and separation of water pollutants due to their well-defined porous structures and high surface areas.
Publisher: American Chemical Society (ACS)
Date: 08-04-2015
Publisher: Elsevier BV
Date: 2000
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA10197E
Publisher: Springer Science and Business Media LLC
Date: 10-2007
DOI: 10.1038/NATURE06250
Publisher: Elsevier BV
Date: 10-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CC00082H
Abstract: Herein, we report the development of highly asymmetric Ni hollow fibres with a dense skin layer integrated on a porous substrate by a single-step spinning and sintering technique.
Publisher: Elsevier BV
Date: 02-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA00704B
Abstract: The oxygen permeation performance of perovskite La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−δ (LSCF) hollow fibre membranes was enhanced by surface modification via coating of a Ba 0.5 Sr 0.5 Co 0.9 Nb 0.1 O 3−δ (BSCN) porous layer.
Publisher: Wiley
Date: 03-12-2019
Abstract: Low-cost, nonprecious transition metal (TM) catalysts toward efficient water oxidation are of critical importance to future sustainable energy technologies. The advances in structure engineering of water oxidation catalysts (WOCs) with single TM centers as active sites, for ex le, single metallic molecular complexes (SMMCs), supported SMMCs, and single-atom catalysts (SACs) in recent reports are examined. The efforts made on these configurations in terms of design principle, advanced characterization, performances and theoretical studies, are critically reviewed. A clear roadmap with the correlations between the single-TM-site-based structures (coordination and geometric structure, TM species, support), and the catalytic performances in water oxidation is provided. The insights bridging SMMCs with SACs are also given. Finally, the challenges and opportunities in the single-TM-site catalysis are proposed.
Publisher: Elsevier BV
Date: 05-2014
Publisher: Elsevier BV
Date: 10-2020
Publisher: Elsevier BV
Date: 03-2018
DOI: 10.1016/J.JCIS.2017.12.066
Abstract: New photocatalytic materials for stable reduction and/or oxidization of water by harvesting a wider range of visible light are indispensable to achieve high practical efficiency in artificial photosynthesis. In this work, we prepared 2D WO
Publisher: Elsevier BV
Date: 06-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CP01648A
Abstract: Typical photographs of GO, HH-rGO and HPH-rGO suspensions in water and 11 organic solvents for 2 weeks.
Publisher: Elsevier BV
Date: 12-2018
DOI: 10.1016/J.JCIS.2018.07.131
Abstract: Photocatalysis has been believed as one of the green and sustainable avenues to address energy and environmental crises by converting solar energy to chemical energy via reactions. Temperature is usually a vital factor controlling kinetics and thermodynamics of a reaction, but it has been less investigated in photocatalysis. In this work, the effect of reaction temperature on photocatalysis was investigated in a simple process, photocatalytic degradation of Congo Red (CR) on three typical catalysts, g-C
Publisher: Elsevier BV
Date: 05-03-2009
Publisher: Elsevier BV
Date: 11-2019
Publisher: Elsevier BV
Date: 07-2011
Publisher: Elsevier BV
Date: 06-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9RA03353J
Abstract: Efficient anode materials with porous structures have drawn increasing attention due to their high specific surface area, which can compensate for the slow reaction rate of electrochemical oxidation.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8NR08611G
Abstract: In this work, novel nitrogen-doped carbon dots (NCDs) modified ZnFe 2 O 4 yolk–shell nanostructure photocatalysts have been fabricated for the first time.
Publisher: American Chemical Society (ACS)
Date: 20-05-2005
DOI: 10.1021/IE040279I
Publisher: Elsevier BV
Date: 02-2017
Publisher: Springer Science and Business Media LLC
Date: 04-08-2021
Publisher: Elsevier BV
Date: 2016
Publisher: American Chemical Society (ACS)
Date: 19-07-2018
Publisher: Elsevier BV
Date: 04-2019
Publisher: Elsevier BV
Date: 11-2005
Publisher: Elsevier BV
Date: 04-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CY01601A
Abstract: In this work, microwave (MW) irradiation was used to activate Co/Al 2 O 3 , Mo/Al 2 O 3 , and Co–Mo/Al 2 O 3 catalysts for dry reforming of methane (DRM) reactions.
Publisher: Elsevier BV
Date: 12-2011
Publisher: Elsevier BV
Date: 07-2018
Publisher: Elsevier BV
Date: 12-2014
DOI: 10.1016/J.ENZMICTEC.2014.09.003
Abstract: Microbial nano-synthesis has been well established as a green method for the sustainable development of nanotechnology. However, the mechanism of this biotechnology has to be reconsidered with the increasing realization that microorganism culture broth plays a vital role during the synthesis, which may obviate the dependence on microbes. Here, we demonstrate that silver nanoparticles (AgNPs) could be synthesized in several types of microorganism culture broth (an aqueous solution abundant in peptone, yeast extract from Saccharomyces cerevisiae, dextrose and other reducing and stabilizing agents) without any specific living microbe involvement. Light and high pH values of broth were identified as two critical factors in ensuring pure AgNPs formation. In broths containing NaCl at high concentration (0.5wt%), silver chloride was identified as the major intermediate and could be converted to AgNPs via one-pot photoreduction. Our broth alone strategy dramatically simplifies the conventional microbial nano-synthesis process by cutting the use of microorganisms and thus provides a more eco-friendly way for nano-Ag preparation. The fundamental understanding of the microbial synthesis mechanisms and implementing of complete green methods to fabricate technologically important nanomaterials will be further promoted by this study.
Publisher: Elsevier BV
Date: 2020
Publisher: Elsevier BV
Date: 10-2014
DOI: 10.1016/J.MIMET.2014.07.009
Abstract: In this study, the minimum inhibitory concentrations (MICs) of AgNO3 against bacteria were investigated in a variety of microorganism culture broths. Broth- and light-dependent MIC values were observed and correlated negatively with nano-Ag speciation development. We advocate here the importance of broth and light standardization in Ag antimicrobial test.
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 08-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CY00159H
Publisher: American Chemical Society (ACS)
Date: 05-06-2014
DOI: 10.1021/ES500382D
Abstract: In this study, we propose and experimentally verified that methane and formic acid mixed fuel can be employed to sustain solid oxide fuel cells (SOFCs) to deliver high power outputs at intermediate temperatures and simultaneously reduce the coke formation over the anode catalyst. In this SOFC system, methane itself was one part of the fuel, but it also played as the carrier gas to deliver the formic acid to reach the anode chamber. On the other hand, the products from the thermal decomposition of formic acid helped to reduce the carbon deposition from methane cracking. In order to clarify the reaction pathways for carbon formation and elimination occurring in the anode chamber during the SOFC operation, O2-TPO and SEM analysis were carried out together with the theoretical calculation. Electrochemical tests demonstrated that stable and high power output at an intermediate temperature range was well-maintained with a peak power density of 1061 mW cm(-2) at 750 °C. With the synergic functions provided by the mixed fuel, the SOFC was running for 3 days without any sign of cell performance decay. In sharp contrast, fuelled by pure methane and tested at similar conditions, the SOFC immediately failed after running for only 30 min due to significant carbon deposition. This work opens a new way for SOFC to conquer the annoying problem of carbon deposition just by properly selecting the fuel components to realize their synergic effects.
Publisher: Elsevier BV
Date: 12-2010
Publisher: American Chemical Society (ACS)
Date: 23-03-2011
DOI: 10.1021/JP1120965
Publisher: Springer Science and Business Media LLC
Date: 30-01-2014
Publisher: Elsevier BV
Date: 09-2010
Publisher: Elsevier BV
Date: 11-2019
Publisher: Elsevier BV
Date: 08-2011
Publisher: Elsevier BV
Date: 12-2017
Publisher: Elsevier BV
Date: 02-2011
Publisher: Elsevier BV
Date: 04-2018
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 02-2012
Publisher: American Chemical Society (ACS)
Date: 20-09-2017
Abstract: Performance degradation caused by carbon deposition substantially restricts the development of direct methane solid oxide fuel cells (SOFCs). Here, an internal reforming layer composed of Ni supported on proton conducting La-doped ceria, such as La
Publisher: Springer Science and Business Media LLC
Date: 28-03-2019
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 06-2008
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 2009
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 26-01-2016
Publisher: Elsevier BV
Date: 03-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA17696D
Abstract: Microbe-free broth synthesis was performed under solar light to give Ag nanoparticle embedded AgCl in 5 minutes with superior performance than P25 for organic pollutant degradation.
Publisher: Elsevier BV
Date: 11-2017
Publisher: Wiley
Date: 02-2006
Publisher: American Chemical Society (ACS)
Date: 18-07-2012
DOI: 10.1021/EF300542E
Publisher: Elsevier BV
Date: 06-2016
Publisher: Elsevier BV
Date: 08-2017
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 07-03-2017
Publisher: Wiley
Date: 12-04-2007
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 26-01-2016
Publisher: Elsevier BV
Date: 12-2014
Publisher: Elsevier BV
Date: 08-2020
Publisher: Elsevier BV
Date: 03-2010
Publisher: Elsevier BV
Date: 12-2009
Publisher: Elsevier BV
Date: 02-2019
Publisher: Wiley
Date: 21-06-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA10538E
Publisher: American Chemical Society (ACS)
Date: 28-02-2011
DOI: 10.1021/CM103534X
Publisher: Elsevier BV
Date: 02-2019
Publisher: Wiley
Date: 25-11-2011
Publisher: Springer Science and Business Media LLC
Date: 02-05-2023
DOI: 10.1186/S12863-023-01128-3
Abstract: HostSeq was launched in April 2020 as a national initiative to integrate whole genome sequencing data from 10,000 Canadians infected with SARS-CoV-2 with clinical information related to their disease experience. The mandate of HostSeq is to support the Canadian and international research communities in their efforts to understand the risk factors for disease and associated health outcomes and support the development of interventions such as vaccines and therapeutics. HostSeq is a collaboration among 13 independent epidemiological studies of SARS-CoV-2 across five provinces in Canada. Aggregated data collected by HostSeq are made available to the public through two data portals: a phenotype portal showing summaries of major variables and their distributions, and a variant search portal enabling queries in a genomic region. In idual-level data is available to the global research community for health research through a Data Access Agreement and Data Access Compliance Office approval. Here we provide an overview of the collective project design along with summary level information for HostSeq. We highlight several statistical considerations for researchers using the HostSeq platform regarding data aggregation, s ling mechanism, covariate adjustment, and X chromosome analysis. In addition to serving as a rich data source, the ersity of study designs, s le sizes, and research objectives among the participating studies provides unique opportunities for the research community.
Publisher: Elsevier BV
Date: 02-2015
Publisher: Oxford University Press (OUP)
Date: 17-03-1999
Abstract: The remarkable similarity of lifestyle and environmental risk factors for type 2 (non-insulin-dependent) diabetes mellitus and colon cancer has led to the hypothesis that diabetes may increase the risk of this cancer. We prospectively examined the relationship between diabetes and risk of colorectal cancer in a cohort of 118403 women aged 30 through 55 years who were without previously diagnosed cancer at baseline in 1976. The women, who were enrolled in the Nurses' Health Study, were assessed for history of diabetes at baseline and during follow-up by use of biennial questionnaires. Self-reported diabetes was validated by information obtained from a supplemental questionnaire on symptoms and treatment and was confirmed by medical record review in a s le of the participants. Incident cases of colorectal cancer were ascertained through medical record review. All reported P values are two-sided. During 18 years of follow-up (201061 person-years), we documented 892 new cases of colorectal cancer. After adjustment for age, body mass index (weight in kg/height in m2), physical activity, and other covariates, relative risks (RRs) were 1.43 (95% confidence interval [CI] = 1.10-1.87 P = .009) for colorectal cancer, 1.49 (95% CI = 1.09-2.06 P = .01) for colon cancer, 1.11 (95% CI = 0.56-2.21 P = .76) for rectal cancer, 1.56 (95% CI = 1.07-2.28 P = .02) for advanced colorectal cancer, and 2.39 (95% CI = 1.46-3.92 P = .0005) for fatal colorectal cancer. Our data provide support for the hypothesis that diabetes is associated with an increased risk of colorectal cancer in women.
Publisher: Elsevier BV
Date: 02-2019
Publisher: Wiley
Date: 04-12-2019
DOI: 10.1002/JCTB.5844
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA23086D
Publisher: Wiley
Date: 23-07-2009
DOI: 10.1002/AIC.11857
Publisher: Elsevier BV
Date: 12-2018
DOI: 10.1016/J.JCIS.2018.07.050
Abstract: A series of MnCeZrO
Publisher: Elsevier BV
Date: 07-2018
Publisher: Elsevier BV
Date: 10-2020
Publisher: Wiley
Date: 27-01-2016
Abstract: Oxygen selective membranes with enhanced oxygen permeability and CO2 resistance are highly required in sustainable clean energy generation technologies. Here, we present novel, cobalt-free, SrFe1-x Tax O3-δ (x=0, 0.025, 0.05, 0.1, 0.2) perovskite membranes. Ta-doping induced lattice structure progression from orthorhombic (x=0) to cubic (x=0.05). SrFe0.95 Ta0.05 O3-δ (SFT0.05) showed the highest oxygen flux rates reaching 0.85 mL min(-1) cm(-2) at 950 °C on a 1.0 mm-thick membrane. Surface decoration can increase the permeation rate further. Ta inclusion within the perovskite lattice of SrFeO3-δ (SF) enhanced the CO2 resistance of the membranes significantly as evidenced by the absence of the carbonate functional groups on the FTIR spectrum when exposed to CO2 atmosphere at 850 °C. The CO2 resistance of Ta-doped SF compounds correlates with the lower basicity and the higher binding energy for the lattice oxygen. SFT0.05 demonstrated high stability during long-term permeation tests under 10% CO2 atmosphere.
Publisher: Elsevier BV
Date: 04-2017
Publisher: Springer Science and Business Media LLC
Date: 29-11-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2CY20377D
Publisher: Elsevier BV
Date: 08-2018
Publisher: Elsevier BV
Date: 12-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1EE01180D
Publisher: Elsevier BV
Date: 10-2008
DOI: 10.1016/J.JCIS.2008.06.062
Abstract: In this research, we investigated the effect of dynamic anion adsorption/exchange on the surface charging property of Mg(2)AlClLDH and Mg(2)AlCO(3)LDH particles that show the average zeta potential of 41 and 34 mV in the as-prepared suspension, respectively. The addition of NaCl up to 3x10(-3) M in the suspension does not obviously affect the zeta potential of both LDHs, which can be attributed to the less affinity of Cl(-) to LDH. The introduction of Na(2)CO(3) severely reduces the zeta potential at the CO(3)(2-) concentration higher than 1x10(-4) M, and to the negative value in both LDH systems at ca. 2x10(-3) M, which is presumably resulted from the exchange and the re-orientation of CO(3)(2-) in a tilt/vertical style on the surface. All four organic anions (dodecyl sulfate, folate, citrate and polyacrylate) also significantly affect the zeta potential of the LDH particles. At the lower concentrations of organic anionic groups (<1x10(-4) M), the zeta potential was slightly affected, i.e. limited exchange/adsorption. However, the concentration increasing to some point suddenly decreases and reverses the zeta potential of the LDH particles, which is presumably caused by the hydrophobic interactions that bind the hydrophobic hydrocarbon chains (especially in dodecyl sulfate) into the micelle-like bilayer bunches on the LDH surface. In addition, the effect of pH in 5.5-11.0 on the LDH particle surface charging is mainly reflected through the conversion of CO(3)(2-) to HCO(3)(-)/H(2)CO(3) when pH decreases from ca. 11 to 6, with limited contribution from protonation/deprotonation and exchange/adsorption.
Publisher: Elsevier BV
Date: 03-2020
DOI: 10.1016/J.JCIS.2019.12.036
Abstract: Spinel-type structured materials have attracted considerable attention and been regarded as promising alternative catalysts for oxygen evolution reaction (OER). However, the regulation of catalytically active octahedral sites in spinel structure to realize high activity and good stability for OER electrocatalysis is still a great challenge. Herein, we propose a self-doping strategy to boost OER performance of spinel-type Ni
Publisher: Elsevier BV
Date: 10-2009
Publisher: Elsevier BV
Date: 03-2014
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA02295A
Abstract: The flower-type V 2 O 5 hollow microspheres with assistance of carbon-sphere templates were fabricated and applied to photocatalytic degradation of gaseous o -DCB.
Publisher: Springer Science and Business Media LLC
Date: 04-12-2018
DOI: 10.1007/S00449-017-1873-0
Abstract: In the present study, keratinase from Stenotrophomonas maltophilia R13 was used for the first time as a reducing agent for the eco-friendly synthesis of AgNPs. The keratinase produced by strain R13 was responsible for the reduction of silver ions and the subsequent formation of AgNPs. Maximum AgNP synthesis was achieved using 2 mM AgNO
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9EN00567F
Abstract: Z-Scheme CdS@Ti 3 C 2 @TiO 2 nanohybrids using MXene Ti 3 C 2 as a non-metal charge carrier mediator exhibited superior performance in sulfachloropyridazine degradation.
Publisher: Elsevier BV
Date: 08-2010
Publisher: Elsevier BV
Date: 08-2018
DOI: 10.1016/J.JHAZMAT.2018.05.044
Abstract: Removal of toxic organics and bacterial disinfection are important tasks in wastewater treatment. Most heavy metal-based catalysts for degradation of aqueous organic pollutants in heterogeneous Fenton-like processes suffer from the toxicity of leached metals. The present work reports environmentally benign systems for both degradation of organics and bacterial disinfection. Calcium substituted LaFeO
Publisher: American Chemical Society (ACS)
Date: 07-11-2008
DOI: 10.1021/IE800891M
Publisher: Elsevier BV
Date: 12-2016
Publisher: Springer Science and Business Media LLC
Date: 04-08-2015
DOI: 10.1038/NCOMMS8756
Abstract: More than 100 loci have been identified for age at menarche by genome-wide association studies however, collectively these explain only ∼3% of the trait variance. Here we test two overlooked sources of variation in 192,974 European ancestry women: low-frequency protein-coding variants and X-chromosome variants. Five missense/nonsense variants (in ALMS1 / LAMB2 / TNRC6A/TACR3/PRKAG1 ) are associated with age at menarche (minor allele frequencies 0.08–4.6% effect sizes 0.08–1.25 years per allele P × 10 −8 ). In addition, we identify common X-chromosome loci at IGSF1 (rs762080, P =9.4 × 10 −13 ) and FAAH2 (rs5914101, P =4.9 × 10 −10 ). Highlighted genes implicate cellular energy homeostasis, post-transcriptional gene silencing and fatty-acid amide signalling. A frequently reported mutation in TACR3 for idiopathic hypogonatrophic hypogonadism (p.W275X) is associated with 1.25-year-later menarche ( P =2.8 × 10 −11 ), illustrating the utility of population studies to estimate the penetrance of reportedly pathogenic mutations. Collectively, these novel variants explain ∼0.5% variance, indicating that these overlooked sources of variation do not substantially explain the ‘missing heritability’ of this complex trait.
Publisher: American Chemical Society (ACS)
Date: 11-02-2019
Publisher: American Chemical Society (ACS)
Date: 17-12-2016
Publisher: Elsevier BV
Date: 10-2019
Publisher: Wiley
Date: 12-12-2014
DOI: 10.1111/JACE.12690
Publisher: Elsevier BV
Date: 07-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6CC06589A
Abstract: Herein, we report the in situ synthesis of ZIF-8 membranes on the external surface of asymmetric ZnO–Al 2 O 3 composite hollow fibers.
Publisher: Elsevier BV
Date: 04-2015
Publisher: Wiley
Date: 31-01-2017
DOI: 10.1002/AIC.15652
Publisher: Elsevier BV
Date: 04-2019
Publisher: Springer Science and Business Media LLC
Date: 29-05-2013
Publisher: Elsevier BV
Date: 04-2019
Publisher: Elsevier BV
Date: 2018
Publisher: American Chemical Society (ACS)
Date: 15-05-2004
DOI: 10.1021/IE0308644
Publisher: Elsevier BV
Date: 05-2008
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 03-2019
Publisher: Elsevier BV
Date: 08-2012
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA00192A
Abstract: A cost effective stationary fuel has been developed using mixtures of ammonium chloride and metal hydrides.
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 20-03-2018
Publisher: Elsevier BV
Date: 05-2008
Publisher: Oxford University Press (OUP)
Date: 15-04-2004
DOI: 10.1093/AJE/KWH112
Abstract: Dietary fiber, fiber fractions, carbohydrate, glycemic index, and glycemic load were prospectively assessed five times over 18 years with a validated food frequency questionnaire in relation to breast cancer risk among 88,678 women (aged 34-59 years at baseline) in the Nurses' Health Study. Incident breast cancer occurred in 4,092 of these women between 1980 and 1998. The authors observed no material association between carbohydrate intake, glycemic index and glycemic load, total dietary fiber intake, and breast cancer risk. The relative risks for the highest versus the lowest quintile of intake were 0.97 (95% confidence interval (CI): 0.87, 1.08) for carbohydrates, 1.08 (95% CI: 0.97, 1.19) for glycemic index, 0.99 (95% CI: 0.89, 1.10) for glycemic load, and 0.98 (95% CI: 0.87, 1.11) for fiber. The relative risk comparing those in the highest 0.7% of fiber intake (>30 g/day) with those in the lowest 10% of fiber intake (< or =10 g/day) was 0.68 (95% CI: 0.43, 1.06). Analyses stratified by menopausal status and body mass index also showed no clear risk pattern. In this cohort of middle-aged women, no overall association was found for dietary carbohydrates, glycemic index and glycemic load, and breast cancer risk. This study also confirmed the lack of an overall association between intake of fiber and fiber types and breast cancer risk observed in other prospective studies.
Publisher: Elsevier BV
Date: 12-2010
Publisher: American Chemical Society (ACS)
Date: 10-03-2011
DOI: 10.1021/JE100993M
Publisher: Elsevier BV
Date: 11-2019
Publisher: Elsevier
Date: 2014
Publisher: American Chemical Society (ACS)
Date: 13-02-2019
Publisher: Elsevier BV
Date: 02-2012
Publisher: Elsevier BV
Date: 02-2009
Publisher: Elsevier BV
Date: 09-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1RA00419K
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6CS00841K
Abstract: This review discusses the know-how in CO 2 resistance for oxygen-selective mixed ionic–electronic conducting membranes.
Publisher: Elsevier BV
Date: 08-2007
Publisher: Springer Science and Business Media LLC
Date: 15-02-2012
Abstract: A novel and convenient one-pot electrodeposition approach has been developed for precisely controlled fabrication of large-scale Bi-Ni nanowire and nanocable arrays. Using porous anodic aluminum oxide as a shape-directing template, by simply changing the electrochemical deposition mode, desired Bi-Ni hybrid nanowires and Bi-Ni core-shell nanocables have been obtained in the CV and CC modes, respectively. The structure, morphology, and composition of the as-prepared s les were characterized using X-ray powder diffraction, transmission electron microscopy, elemental mapping, and energy-dispersive X-ray spectrometry.
Publisher: Elsevier BV
Date: 15-09-2009
Publisher: American Chemical Society (ACS)
Date: 07-2015
Abstract: Carbon nanotube (CNT) mixed-matrix membranes (MMMs) show great potential to achieve superior gas permeance because of the unique structure of CNTs. However, the challenges of CNT dispersion in polymer matrix and elimination of interfacial defects are still hindering MMMs to be prepared for high gas selectivity. A novel CNT/metal-organic framework (MOF) composite derived from the growth of NH2-MIL-101(Al) on the surface of CNTs have been synthesized and applied to fabricate polyimide-based MMMs. Extra amino groups and active sites were introduced to external surface of CNTs after MOF decoration. The good adhesion between the synthesized CNT-MIL fillers and polymer phase was observed, even at a high filler loadings up to 15%. Consequently, MMMs containing the synthesized MOF/CNT composite exhibit not only a large CO2 permeability but also a high CO2/CH4 selectivity the combined performance of permeability and selectivity is even above the Robeson upper bound. The strategy of growing MOFs on CNTs can be further utilized to develop a more effective approach to further improve MMM performance through the decoration of MOFs on existing fillers that have high selectivity to specific gas.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6EN00633G
Abstract: Singlet oxygen produced during peroxymonosulfate activation by N-graphene dominated the pollutants degradation.
Publisher: Massachusetts Medical Society
Date: 13-09-2001
DOI: 10.1056/NEJMOA010492
Publisher: Elsevier BV
Date: 11-2003
Abstract: Although increased consumption of dietary fiber and grain products is widely recommended to maintain healthy body weight, little is known about the relation of whole grains to body weight and long-term weight changes. We examined the associations between the intakes of dietary fiber and whole- or refined-grain products and weight gain over time. In a prospective cohort study, 74,091 US female nurses, aged 38-63 y in 1984 and free of known cardiovascular disease, cancer, and diabetes at baseline, were followed from 1984 to 1996 their dietary habits were assessed in 1984, 1986, 1990, and 1994 with validated food-frequency questionnaires. Using multiple models to adjust for covariates, we calculated average weight, body mass index (BMI in kg/m(2)), long-term weight changes, and the odds ratio of developing obesity (BMI > or = 30) according to change in dietary intake. Women who consumed more whole grains consistently weighed less than did women who consumed less whole grains (P for trend < 0.0001). Over 12 y, those with the greatest increase in intake of dietary fiber gained an average of 1.52 kg less than did those with the smallest increase in intake of dietary fiber (P for trend < 0.0001) independent of body weight at baseline, age, and changes in covariate status. Women in the highest quintile of dietary fiber intake had a 49% lower risk of major weight gain than did women in the highest quintile (OR = 0.51 95% CI: 0.39, 0.67 P < 0.0001 for trend). Weight gain was inversely associated with the intake of high-fiber, whole-grain foods but positively related to the intake of refined-grain foods, which indicated the importance of distinguishing whole-grain products from refined-grain products to aid in weight control.
Publisher: FapUNIFESP (SciELO)
Date: 09-2009
Publisher: Elsevier BV
Date: 11-2009
Publisher: Elsevier BV
Date: 04-2006
Publisher: Elsevier BV
Date: 12-2019
Publisher: Springer Science and Business Media LLC
Date: 20-04-2020
DOI: 10.1038/S41591-020-0807-6
Abstract: A double burden of malnutrition occurs when in iduals, household members or communities experience both undernutrition and overweight. Here, we show geospatial estimates of overweight and wasting prevalence among children under 5 years of age in 105 low- and middle-income countries (LMICs) from 2000 to 2017 and aggregate these to policy-relevant administrative units. Wasting decreased overall across LMICs between 2000 and 2017, from 8.4% (62.3 (55.1–70.8) million) to 6.4% (58.3 (47.6–70.7) million), but is predicted to remain above the World Health Organization’s Global Nutrition Target of % in over half of LMICs by 2025. Prevalence of overweight increased from 5.2% (30 (22.8–38.5) million) in 2000 to 6.0% (55.5 (44.8–67.9) million) children aged under 5 years in 2017. Areas most affected by double burden of malnutrition were located in Indonesia, Thailand, southeastern China, Botswana, Cameroon and central Nigeria. Our estimates provide a new perspective to researchers, policy makers and public health agencies in their efforts to address this global childhood syndemic.
Publisher: Elsevier BV
Date: 07-2016
Publisher: Elsevier BV
Date: 12-2018
Publisher: Wiley
Date: 14-09-2006
DOI: 10.1002/AIC.10966
Publisher: American Chemical Society (ACS)
Date: 20-06-2019
Publisher: Springer Science and Business Media LLC
Date: 11-04-2011
Abstract: Spinel zinc manganese oxide (ZnMn 2 O 4 ) nanorods were successfully prepared using the previously synthesized α-MnO 2 nanorods by a hydrothermal method as template. The nanorods were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV-Vis absorption, X-ray photoelectron spectroscopy, surface photovoltage spectroscopy, and Fourier transform infrared spectroscopy. The ZnMn 2 O 4 nanorods in well-formed crystallinity and phase purity appeared with the width in 50-100 nm and the length in 1.5-2 μm. They exhibited strong absorption below 500 nm with the threshold edges around 700 nm. A significant photovoltage response in the region below 400 nm could be observed for the nanorods calcined at 650 and 800°C.
Publisher: Elsevier BV
Date: 09-2011
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8DT02263A
Abstract: Molecular tailing of spinel-titania nano-heterojunctions towards efficient solar energy conversion and environmental remediation.
Publisher: Informa UK Limited
Date: 2006
Publisher: Elsevier BV
Date: 03-2010
Publisher: Elsevier BV
Date: 2018
Publisher: American Chemical Society (ACS)
Date: 16-02-2002
DOI: 10.1021/CM0115057
Publisher: American Chemical Society (ACS)
Date: 18-11-2019
Abstract: The great promise of hydrogen energy and hydrogen production from water through proton exchange membrane (PEM) or membrane-free electrolysis drives the pursuit of highly active and acid-stable electrocatalysts with dual functionality and reduced cost for overall water splitting in acidic media. Here, we report a new Ru-modified cobalt-based electrocatalyst embedded in a nitrogen-doped carbon (NC) matrix with rationally designed Mott-Schottky heterostructure to realize high activity and stability toward overall water splitting in a strongly acidic environment. Such a composite was facilely prepared by carbonization of cobalt-based MOF, followed by galvanic exchange between cobalt and Ru, and then controlled partial oxidation. The partial oxidation of RuCo implanted inside the NC matrix led to the formation of a class of RuO
Publisher: Wiley
Date: 19-03-2013
DOI: 10.1111/JACE.12248
Publisher: Elsevier BV
Date: 11-2017
Publisher: Public Library of Science (PLoS)
Date: 19-07-2012
Publisher: Elsevier BV
Date: 04-2010
Publisher: Elsevier BV
Date: 02-2008
Publisher: MDPI AG
Date: 08-04-2019
DOI: 10.3390/PR7040199
Abstract: As a possible novel cost-effective method for oxygen production from air separation, ion-conducting ceramic membranes are becoming a hot research topic due to their potentials in clean energy and environmental processes. Oxygen separation via these ion-conducting membranes is completed via the bulk diffusion and surface reactions with a typical ex le of perovskite oxide membranes. To improve the membrane performance, silver (Ag) deposition on the membrane surface as the catalyst is a good strategy. However, the conventional silver coating method has the problem of particle aggregation, which severely lowers the catalytic efficiency. In this work, the perovskite oxide La0.8Ca0.2Fe0.94O3−a (LCF) and silver (5% by mole) composite (LCFA) as the membrane starting material was synthesized using one-pot method via the wet complexation where the metal and silver elements were sourced from their respective nitrate salts. LCFA hollow fiber membrane was prepared and comparatively investigated for air separation together with pure LCF hollow fiber membrane. Operated from 800 to 950 °C under sweep gas mode, the pure LCF membrane displayed the fluxes from 0.04 to 0.54 mL min−1 cm−2. Compared to pure LCF, under similar operating conditions, the flux of LCFA membrane was improved by 160%.
Publisher: Elsevier BV
Date: 04-2011
Publisher: MDPI AG
Date: 25-06-2019
DOI: 10.3390/NU11061436
Abstract: While dietary factors are important modifiable risk factors for type 2 diabetes (T2D), the causal role of carbohydrate quality in nutrition remains controversial. Dietary glycemic index (GI) and glycemic load (GL) have been examined in relation to the risk of T2D in multiple prospective cohort studies. Previous meta-analyses indicate significant relations but consideration of causality has been minimal. Here, the results of our recent meta-analyses of prospective cohort studies of 4 to 26-y follow-up are interpreted in the context of the nine Bradford-Hill criteria for causality, that is: (1) Strength of Association, (2) Consistency, (3) Specificity, (4) Temporality, (5) Biological Gradient, (6) Plausibility, (7) Experimental evidence, (8) Analogy, and (9) Coherence. These criteria necessitated referral to a body of literature wider than prospective cohort studies alone, especially in criteria 6 to 9. In this analysis, all nine of the Hill’s criteria were met for GI and GL indicating that we can be confident of a role for GI and GL as causal factors contributing to incident T2D. In addition, neither dietary fiber nor cereal fiber nor wholegrain were found to be reliable or effective surrogate measures of GI or GL. Finally, our cost–benefit analysis suggests food and nutrition advice favors lower GI or GL and would produce significant potential cost savings in national healthcare budgets. The high confidence in causal associations for incident T2D is sufficient to consider inclusion of GI and GL in food and nutrient-based recommendations.
Publisher: Wiley
Date: 27-12-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA06529B
Abstract: This review summarizes the recent research progress made in nanostructured metal nitrides for electrochemical and photo(electro)chemical water splitting.
Publisher: Informa UK Limited
Date: 16-04-2020
Publisher: Elsevier BV
Date: 2011
Publisher: Elsevier BV
Date: 08-2019
Publisher: Elsevier BV
Date: 08-2017
Publisher: Elsevier BV
Date: 30-07-2010
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1EE02539B
Publisher: Wiley
Date: 10-03-2018
DOI: 10.1002/AIC.16144
Publisher: MDPI AG
Date: 03-04-2023
Abstract: Demographic and clinical factors influence the metabolome. The discovery and validation of disease biomarkers are often challenged by potential confounding effects from such factors. To address this challenge, we investigated the magnitude of the correlation between serum and urine metabolites and demographic and clinical parameters in a well-characterized observational cohort of 444 post-menopausal women participating in the Women’s Health Initiative (WHI). Using LC-MS and lipidomics, we measured 157 aqueous metabolites and 756 lipid species across 13 lipid classes in serum, along with 195 metabolites detected by GC-MS and NMR in urine and evaluated their correlations with 29 potential disease risk factors, including demographic, dietary and lifestyle factors, and medication use. After controlling for multiple testing (FDR 0.01), we found that log-transformed metabolites were mainly associated with age, BMI, alcohol intake, race, s le storage time (urine only), and dietary supplement use. Statistically significant correlations were in the absolute range of 0.2–0.6, with the majority falling below 0.4. Incorporation of important potential confounding factors in metabolite and disease association analyses may lead to improved statistical power as well as reduced false discovery rates in a variety of data analysis settings.
Publisher: Elsevier BV
Date: 04-2018
Publisher: Elsevier BV
Date: 15-09-2007
Publisher: Elsevier BV
Date: 05-2009
Location: United States of America
Location: United States of America
No related grants have been discovered for Simin Liu.