Zobrazení zdroje stránky Schmittmendez3139

Intervertebral disc degeneration is assessed clinically by magnetic resonance imaging (MRI). Although some quantitative evaluation methods for MRI under special imaging conditions have been reported, they are widely and generally difficult to use. The aim of this study is to determine if intervertebral disc degeneration can be assessed using the ratio of MRI T2 values of the disc to the spinal cord T2 values.<br /><br /> Signal ratio was calculated using the T2 signal intensity of the disc and the spinal cord on MRI under common conditions for a new assessment of disc degeneration. T2-weighted images of 100 patients undergoing MRI twice within a year under different imaging conditions, 1.5T or less and 3.0T, were used for the assessment. The T2 signal intensity was measured at the center of the discs at L2-3, L3-4, L4-5, L5-S1 and the spinal cord at T12 level. Signal ratio was calculated using these T2 signal intensity values. The ratio of the difference between the first and second values to the mean of the first and second values was calculated to confirm the equivalence of MRI assessments of disc degeneration in the same patient under different imaging conditions.<br /><br /> The equivalence of values between the first MRI and the second MRI in the signal ratio was significantly higher than that in the T2 signal intensity. In addition, the signal ratio was negatively correlated with age and were significantly associated with Pfirrmann grade.<br /><br /> By using the signal ratio, disc degeneration can be evaluated by MRI even under different imaging conditions.<br /><br />By using the signal ratio, disc degeneration can be evaluated by MRI even under different imaging conditions.<br /><br /> The aim of this study was to analyze the association between at least one of the risk factors for metabolic syndrome and the lifestyle of adults and elderly individuals in Teresina, Piauí.<br /><br /> This was a cross-sectional, population-based study, with adults and elderly of both both sexes, living in Teresina, Piauí.. Data were collected using Epicollect 5 software (Imperial College London) in a mobile application (mobile). Pearson's χ<br /><br /> test was used to assess the association between variables. The prevalence ratio (PR) was calculated, with a 95% confidence interval (95% CI), estimated by Poisson regression, to measure the strength of association between the study variables with the presence of at least one factor of risk for disease. The level of significance adopted was P &lt; 0.05.<br /><br /> The main habit as a protective factor for at least one risk factor for metabolic syndrome was the consumption of natural fruit juice once to three times a week (0.93), in addition to the current daily use of tobacco (raw and adjusted; 0.80) and irregularly active and active/very active physical activity level (0.86), which when adjusted increased to 0.89 in the latter activity level. The habit of drinking alcohol frequently/occasionally was 1.08 times more likely and when adjusted increased (1.10).<br /><br /> The presence of at least one risk factor for this disease, according to lifestyle, deserves a warning for the population, as it is capable of harming health, especially at the level of cardiovascular impairment.<br /><br />The presence of at least one risk factor for this disease, according to lifestyle, deserves a warning for the population, as it is capable of harming health, especially at the level of cardiovascular impairment.The aim of this study was to establish a practical approach to remove ammonium nitrogen of rare earth elements (REEs) wastewater by an indigenous photoautotrophic microalga. Firstly, a new microalgal strain was successfully isolated from REEs wastewater and identified as Chlamydomonas sp. (named Chlamydomonas sp. YC). The obtained results showed that microalga could completely remove the NH4+-N of 10% REEs wastewater after 10 days of cultivation; however, the highest NH4+-N removal rate was attained by microalga to treat undiluted REEs wastewater. Then, three cultivation modes including batch, semi-continuous and continuous cultivation methods were developed to evaluate the ability of NH4+-N removal rate by this microalga to treat diluted (10%) and undiluted REEs wastewater. It was found that, Chlamydomonas sp. YC exhibited superior performance towards NH4+-N removal rates (32.75-61.05 mg/(L·d)) by semi-continuous and continuous processes for the treatments of 10% and undiluted REEs wastewater in comparison to the results (19.50-30.38 mg/(L·d) by batch process. Interestingly, under the same treatment conditions, among the three cultivation modes, microalga exhibited the highest removal rates of NH4+-N in undiluted REEs wastewater by semi-continuous (61.05 mg/(L·d)) and continuous (57.10 mg/(L·d) processes. In term of the biochemical analysis, microalgal biomass obtained from the wastewater treatment had 35.40-44.40% carbohydrate and 4.97-6.03% lipid, which could be potential ingredients for sustainable biofuels production. And the highest carbohydrate and lipid productivities attained by Chlamydomonas sp. YC in the continuous mode were 226.36 mg/(L·d) and 32.98 mg/(L·d), respectively. Taken together, the established processes mediated with Chlamydomonas sp. YC via continuous cultivation was the great promising approaches to efficiently remove NH4+-N of REEs wastewater and produce valuable biomass for sustainable and renewable biofuels in a simultaneous manner.The toxic oxidation intermediate p-benzoquinone exists in aqueous environments at dilute concentrations above the fish-toxicity limit of 0.045 mg/L, affecting aquatic life. The reduction of this compound to the concentrations required to achieve safe discharge limits is challenging. In this study, the adsorptive removal of p-benzoquinone by a biosolid-based activated carbon (SBAC) was systematically investigated in batch experiments. The adsorption rate was rapid, and the bulk of p-benzoquinone adsorption occurred within 30 min. The maximum adsorption capacity of SBAC was estimated at 19.6 mg/g using the Langmuir isotherm model. Its adsorptivity was independent of temperature from 6 to 40 °C. The presence of 6 g/L of chloride and 500 mg/L of sulphate did not affect the removal of 1 mg/L p-benzoquinone, whereas 15 mg/L of humic acid media slightly decreased the p-benzoquinone removal from 87.0% to 83.2%. Diffusion, hydrophilic, and electrostatic interactions (i.e., dipole-dipole) govern the adsorption of p-benzoquinone and are influenced by the SBAC surface chemistry. [https://www.selleckchem.com/products/ly2090314.html selleck products] Biosolid-based activated carbon can lower the residual p-benzoquinone to below the fish-toxicity limit of 0.045 mg/L within 1 h of sequential adsorption. Thus, biosolid-based activated carbon can effectively remove p-benzoquinone from aqueous environments; this is a waste-to-resource approach that addresses sustainability (waste disposal) and environmental protection (pollutant removal).Since last decade, firms are facing the challenge of strict compliance in response to the stakeholders' awareness about climate change and environmental degradation. Considering these trends, we examine the effect of environmental innovation such as product innovation and process innovation on firm value and the moderating effect of organizational capital on environmental innovation-firm value nexus. Using the data of U.S. listed firms from 2002 to 2019, we find a significantly positive impact of environmental innovation on firm value. Our findings also reveal that organizational capital strengthens the positive association between environmental innovation and firm value, suggesting that firms with higher organizational capital are more likely to consider the demands of stakeholders to be environment friendly which in turn enhances their market value. These findings are aligned with the resource-based view (RBV) and highlight that organizational capital can play a significant role to increase the firm value through environmental innovation. Our results remain robust to subsample analyses, alternative proxies of main variables and are not subject to potential endogeneity concerns. Our study provides new insights into the environmental innovation-firm value nexus and presents important policy implications.Poly- and perfluorinated alkyl substances (PFAS) have been and are used in electronic products due to their unique properties that improve product quality and performance. Ubiquities and persistence of some PFAS detected in environmental samples (water, soil, air) have attracted much attention and regulatory actions in recent years. This review provides an overview of PFAS use in electronic components; trends in quantities of e-waste generation; PFAS exposure pathways during e-waste handling and processing; reported PFAS in environmental samples and samples of serum, blood, and hair collected from people living near and working at e-waste processing sites. Processes used for manufacturing electronic components (e.g., embedded processes, additive manufacturing) make recycling or materials recovery from discarded electronic units and components very difficult and unfeasible. Exposure during numerous processing steps for materials recovery and scavenging at disposal sites can result in PFAS intake through inhala for at risk populations are needed for assessing potential health risks due to PFAS exposure at these sites.<br /><br /> The Arabic word "Assarɛ" (الصرع) continues to be used to stigmatize Moroccan people with epilepsy (PWE), affecting their quality of life and reducing their likelihood of visiting a doctor.<br /><br /> 298 participants responded to an automated questionnaire, administered via social media, which investigated the socio-demographic information and proposed new terms to replace or salvage the term "Assarε."<br /><br /> Most of the participants refused the use of "Assarɛ" term when referring to Epilepsy. "Brain Electrical Disorder" (الإعتلال الكهربائي للدماغ) and "Lipilipsy" (لبيليبسي) were the most commonly nominated terms to replace "Assarɛ". Independent variables, such as age over 35 years, education level, and the number of people living with epilepsy, influenced the respondents' choices.<br /><br /> The desire of mostparticipants in the survey to change the label "Assarɛ" demonstrates the widespread and severe stigmatisation and marginalisation of PWE.<br /><br />The desire of most participants in the survey to change the label "Assarɛ" demonstrates the widespread and severe stigmatisation and marginalisation of PWE.<br /><br /> KCNQ2-epileptic encephalopathy (EE) is a neonatal epilepsy syndrome characterized by a typical clinical presentation and EEG recording, but without any brain or cortical abnormal development on MRI. Most of the patients have a severe developmental impairment. The epileptogenic mechanisms are thought to be the result of the changes of the M-current density causing a change of brain excitability. Although recent studies allow us to better understand the physiopathology of KCNQ2-EE, the neuropathology of this ion channel dysfunction has only been previously described in a single case report.<br /><br /> We report the neuropathology study of a case of KCNQ2-EE with a typical electro-phenotype due to a de novo heterozygous single nucleotide pathogenic variant in the exon 5 of the KCNQ2 gene (NM_172107.2c.802C&gt;T; p.Leu268Phe).<br /><br /> At the macroscopic level, the brain had a normal structure with a normal neocortical gyral pattern. At the histological level, the cortex had a usual six-layer lamination in all lobes but blurred gray-white matter boundaries due to excessive heterotopic neurons in deep white matter were observed.