Articles Related to DAT

Intravascular large B-cell lymphoma (IVBCL) is a rare but aggressive form of non-Hodgkin lymphoma. It is characterized by the malignant proliferation of lymphocytic tumor cells in the lumens of capillaries, small arterioles, and post-capillary venules. There exists two clinical variants: the Asian variant and the Western variant. The former is associated with neurologic and dermatologic signs and symptoms, whereas the latter often presents with splenomegaly, jaundice, and hemophagocytes. Lymphadenopathy is uncommon, and patients typically have nonspecific symptom

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Background to Study: Lead (Pb) is ubiquitous in the environment and toxic. It has many negative effects on many organs and induces biochemical, physiological, and behavioural alterations on the brain. Monodora myristica is a calabash nutmeg belonging to the family of Annonaceae.It is a rich source of flavonoids which have been shown to exhibit both antioxi-dant and anti-inflammatory properties. We evaluated the protective role of Monodora myristica on lead-induced toxicity in D. melanogaster in this study

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Nonlinear vibration analysis of dynamic response of carbon nanotube has created noble attention globally because of their properties and applications in tomorrow’s society. In this study, vibration of single-walled carbon nanotubes resting on elastic foundation with magnetic and thermal effects under the influence of Casimir force is presented.

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The vibrations of carbon nanotubes under the influences of various internal and external forces have been subjects of interests for some years. These researches have not really considered the effects of surface energy and initial stress which are very important from both material and mechanical aspects of views. Therefore, the current study presents the simultaneous impacts of surface energy, initial stress and nonlocality and other various parameters on the nonlinear vibration of carbon nanotube hot fluid-conveying resting on elastic foundations in a magnetic environment. The derived equations governing the behaviours are solved using Galerkin’s decomposition-Adomian decomposition method is adopted to explore the concurrent impacts of surface elasticity, initial stress, residual surface tension and nonlocality on the nonlinear vibration of singlewalled carbon conveying nanotube resting on linear and nonlinear elastic foundation and operating in a thermo-magnetic environment

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Anthropometric data of Nigerian male and female agro equipment operators was determined as the operators were in a standing position. Field workers that facilitated the anthropometric measurements were trained and grouped into three groups – namely, coordinating supervisors, data collating officers and data collecting officers. The anthropometric data were collated from various individuals within the ages of (18 to 60) years from three states in each of the six geopolitical zones in Nigeria

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Rapid data collection can provide an insight into causation, the socio-cultural reality, and complex social processes. This is especially important in disease outbreaks when information is quickly required on local needs that is essential for success. Quantitative data alone are not sufficient to provide an in-depth understanding. The challenge is to use a rapid data collection approach that can provide practical solutions by integrating the available evidence, professional expertise, and stakeholder experiences. This viewpoint reflects the opinions of the author that highlight the strengths and weaknesses of rapid data collection and the presentation of an approach that can be implemented with minimal interference in a health promotion and healthcare program context

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Background: The smell in a hospital is an amalgam of smells, emanating from varied sources. But primarily the smell is from the strong cleaning agents used in corridors, including phenyl and bleaching powder, etc. Chemicals that trigger odors may cause health effects. A strong urine odor is also responsible for foul smells in hospitals and other public facilities. Strong odors may cause some people to feel a burning sensation, leading to coughing, wheezing, or other breathing problems.

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This paper covers the validation and measurement uncertainty evaluation of an ICP-AES method for bismuth mass fraction determination in bismuth sulfide thin films. Plasma view at radial mode and the wavelength were monitored for bismuth at 223.061 nm. Following AFNOR (Association Française de Normalisation) Norm NFT 90-210 (2009), a regression equation was calculated using single element bismuth standard solution prepared in the same matrix as samples. The linear range was between 0.2 and 2.0 mg L−1. Limits of detection (LOD) and quantification (LOQ) were calculated as 0.03 and 0.12 mg L−1, respectively. Recovery percentages were ranging between 91 and 109 %. Accuracy was found to be adequate. Estimated expanded uncertainty according to both GUM and EURACHEM guides was 3.1 %.

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With the development of research on the utilization of straw as a biomass resource by scientific researchers, there are more and more reports on the analysis of manganese peroxidase in its biodegradation process, which plays an important role in the process of straw biodegradation. There are many methods of analysis and detection. However, the principle of these methods and the accuracy, sensitivity, stability and operational practicality of detection are different, which affects the application range of detection metho

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Low temperature (but above-freezing) during germination and early seedling growth of chilling-sensitive crop is one of the most significant limiting factors in the productivity. 2,4-Epibrassinolide (24-EB) is one of the most active forms of brassinosteroids are multifunctional plant hormones that can regulate development and respond to abiotic stresses. The effect of seed-pretreatment with 24-EB (12.5 μg/L) on photosynthetic characteristics, membrane permeability, lipid peroxidation and antioxidant activities under chilling stress were investigated in tomato (Lycopersicon esculentum Mill.) cultivars: Kulon (early ripening) and Yakhont (mid-early). Results showed that the use of 24-EB led to more pronounced changes in the pigment composition in Yakhont in the absence of a stress factor, whereas in Kulon under chilling stress (2 o C for 24 h). 24-EB pretreatment minimized the damage to cell membranes in tomato plants caused by chilling stress. The tolerance to chilling stress in Yakhont was higher than Kulon (by electrolyte leakage and content of malondialdehyde assay). Under these conditions, oxidative processes in plants of Yakhont did not show significant difference. We have not established the effect of 24-EB on the level of low molecular weight antioxidants in tomato cultivars (measured by inhibition of 2,2-diphenyl-1-picrylhydrazyl free radical method). The antioxidant activity of leaf extracts in Yakhont was twice as high as in Kulon under all experimental conditions (with/without 24-EB, 22/2 o C). It was concluded that the less pronounced reaction of plants of Yakhont to the use of 24-EB and chilling stress is due to their genetically determined higher cold resistance than that of Kulon.

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Introduction: Sickle cell disease (SCD) is a genetic hemoglobin disease for which there are many treatment options. Evidence supports the efficacy and cost-effectiveness of hydroxyurea (HU). Nevertheless, its use and adherence to treatment remain suboptimal, hence, the necessity to assess the factors influencing this observance. Objectives: The objective was to evaluate the factors influencing observance to HU in children with sickle cell disease from the Mother and Child Center of the Chantal Biya Foundation (MCC of the CBF). Materials and Methods: This was a descriptive and analytical cross-sectional study from January to June 2020. Children on HU for at least six months, and followed up at MCC of the CBF were included. Data collection was done using a pre-tested questionnaire. The level of compliance was assessed using the Morisky’s observance grid, where 8 points was considered as “good”; 6-7 points as “fair”, and <6 as “poor”. Data were stored in CSPro version 7.0 software, and subsequently analyzed using the SPSS version 20.0 software. Results: Of 142 patients recruited, the level of patient observance was considered “good” in 2.1%, fair in 26.1% and poor in 71.8%. Logistic regression analyses suggested that using hydroxyurea to prevent complications was the only factor that favored good medical adherence [OR=0.37; CI (0.14-0.987)] (p=0.047). Poor compliance was mainly associated with the fear of infertility and and other sides effects associated with the use of HU. Conclusion: Children with SCD in this study have poor compliance with HU. Implementing IEC sessions would make it possible to raise patient/parent awareness and reverse this trend.

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The emissions trading system is an important tool to combat climate change, which uses the “cap and trade” principle to reduce carbon dioxide emissions. This paper first adopts production technology considering carbon emission permit trading and proposes a data envelopment analysis (DEA) model to evaluate carbon emission efficiency of Chinese fire power industry from 2013 to 2017. Further, a new zero sum gains DEA（ZSG-DEA）considering carbon emission permit trading model is proposed based on efficiency principle to adjust the initial allocation of carbon emission permits (considering fairness principle) among regional fire power industries in 2030. The new approach enables us to investigate the carbon emission efficiency and emission permit allocation problem from an emission permit trading perspective. Theoretical analysis show that organizations have higher potential in reducing carbon emissions and greater potential in improving inputs and outputs after introducing emitting permit trading. Empirical results show that the southeastern fire power industries have higher carbon emission efficiencies and permitted emission levels. Under the background of carbon emission permit trading, the allocation level of carbon emissions permit in inefficient areas is limited and given greater responsibility for reducing emissions considering fairness and efficiency principles. This could promote active carbon emissions reduction in various regions so as to realize China’s carbon emissions [1] reduction targets in a faster pace.

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Formaldehyde (HCHO) pollution was eliminated by catalyst effectively. The CexZr1-xOy catalyst was prepared by coprecipitate method, and its performance of HCHO removal was investigated. The results showed that the HCHO removal rate decreased from 100% to 60.88% when the reaction time was from 24h to 48h.In order to study the deactivation mechanism of the CexZr1-xOy catalyst,N2 adsorption and desorption, SEM, EDS, FT-IR, XRD and XPS were used to characterize CexZr1-xOy after different reaction times. Characterization results showed that the pore structure of CexZr1-xOy did not change significantly with the extension of reaction time, and C6H9CeO6 and Ce(CO3)2 increased gradually, while the active component Ce4+ decreased sharply. Therefore, the production and deposition of products are the main reasons for the deactivation of the CexZr1-xOy catalyst. The catalytic performance of regenerated CexZr1-xOy catalyst was tested for 24h, and the results showed that it almost recovered to fresh CexZr1-xOy catalyst. This provides a reference for the preparation of efficient catalyst for formaldehyde removal.

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Despite extensive research, the incidence of diabetes continues to increase, and the management of diabetes needs improvement, because in 2016, more than 100,000 patients had lower extremity amputated, suffered ischemic heart disease and stroke. Analysis of investigations indicates that increased oxidative stress and chronic inflammation enhance the risk, progression, diabetic–related complications, and reduce effectiveness of drug therapy. Therefore, simultaneously attenuation of these cellular abnormalities may help in reducing the risk of development, progression, and prolonging the effectiveness of drug therapy.

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The aim of this study was to measure the treatment efficiency of percutaneous nephrolithotomy (PNL) patients by Data Envelopment Analysis (DEA), as a novel method with an output minimizing model. Urinary stone disease is a frequent problem with increasing prevalence in recent years. Depending on the location and size, the treatment of renal stone 2 cm or more is surgical and PNL. In this context, a retrospective study in which 154 patients with kidney stones over 2 cm was conducted.

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Two basic reactions occur during the anodizing of aluminum: 1) the aluminum is consumed and 2) an oxide grows. By accepting this statement as true, the anodizing process can be viewed as a corrosion process, and anodizing can be modeled using the Tafel Equation. Anodizing process parameters of electrolyte chemistry and concentration, temperature, aluminum substrate resistance and current density are presented as they relate to the Tafel Equation and how they impact the anodic aluminum oxide structure and properties. Understanding this relationship is consequent in making anodizing an engineering process, one that enables tuning the structure such that it yields distinct characteristics to fulfill design and application requirements.

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Anodisation of pure titanium has been carried out in sulphuric and in phosphoric acid solutions at potentials ranging from 50 to 150V. The SEM and AFM morphological analysis indicates that, within this potential range, oxidation in sulphuric acid solution produces better developed mesoporous oxide layers.

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The design of an electrochemical reactor for the preparation of self-supported comparatively thin (up to 10 μm) and large area (up to 50 cm2) anodic alumina membranes is described allowing growth of porous alumina at high applied potential (up to 150 V) without burning.

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In this paper, we report on the synthesis of BaTiO3 nanowires via the anodic aluminum oxide template method. To fill in the precursors of BaTiO3 into anodic aluminum oxide templates, the vacuum and drop loading method developed in our previous study was used. Ba(CH3COO)2 (barium acetate) and C12H28O4Ti (tetraisopropyl orthotitanate) were used as Ba and Ti sources, respectively. Anodic aluminum oxide membranes with the through-hole diameter of ~200 nm were used as the template for BaTiO3 nanowires.

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