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Creep properties of bimetal Al/SiC/Cu compositesfabricated via accumulative roll bonding process

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Journal of Central South University 2024年第10期31卷 3807-3818页

作者： Basem Ali Jasim Dheyaa J Bansal pooja Qasim Maytham T Brisset B.J Faculty of Engineering Warith Al-Anbiyaa UniversityKarbala 56001Iraq Department of Petroleum Engineering Al-Amarah University CollegeMaysanIraq Department of Biotechnology and Genetics Jain(Deemed-to-be)UniversityBengaluruKarnataka-560069India Department of Allied Healthcare and Sciences Vivekananda Global UniversityJaipurRajasthan-303012India College of Health and Medical Technology Al-Ayen UniversityThi-Qar64001Iraq Institut des Matériaux Jean Rouxel(IMN) UMR 6502Polytech'NantesNantes CedexFrance

In the present study,microstructural evolution,mechanical and creep properties of Al/SiC/Cu composite stripsfabricated via accumulative roll bonding(ARB)process were *** obtained results showed the formation of anatomic diffusion layer with thickness of about 17μm at the interface during the ARB under three creep loadingconditions namely 30 MPa at 225℃,35 MPa at 225℃,and 35 MPa at 275℃.An generated intermetallic compoundresulted in a 40%increase of interface thickness near *** stress level decreased by 13%at constant temperature withno signi fi cant effect on the interface thickness,and the creep failure time declined by 44%.It was observed that atconstant temperatures,the second slope of the creep curve reached to 39%with increasing stress level,then,it dropped to2%with a little temperature *** creep test under 35 MPa at 275℃,the sample displays the presence of 60%Aland 40%Cu,containing brittle Al_(2)Cu intermetallic compound at the *** temperature and stress had effecton the creep properties,specially increasing the slope of creep curves with higher stresses.

关键词： creep property intermetallic compounds accumulative roll bonding microstructure bimetal

Antioxidant and antimicrobial activity of a mangrove plant Avicennia marina(Forsk.)

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Journal of Coastal Life Medicine 2015年第9期 713-717页

作者： pooja Moteriya Ashish Dalsaniya Sumitra Chanda Phytochemical Pharmacological and Microbiological LaboratoryDepartment of BiosciencesSaurashtra UniversityRajkot 360005GujaratIndia

Objective:To evaluate the antioxidant and antimicrobial potential of different parts(leaf,stem and pneumatophore)of a mangrove plant Avicennia marina(Forsk.)Vierh(Avicenniaceae).Methods:The extraction was done by cold percolation method using solvents of hexane,ethyl acetate,acetone,methanol and *** phenol and flavonoid content were measured by Folin-Ciocalteu’s reagent and aluminium chloride colorimetric method *** antioxidant activity was evaluated using antioxidant assays of 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity,superoxide radical scavenging assay,2,2’-azino-bis-(3-ethyl)benzothiazoline-6-sulfonic acid,ferric reducing antioxidant power and reducing capacity *** antibacterial activity was done by agar well diffusion method against four Gram-positive,four Gram-negative bacteria and four ***:Different antioxidant assays showed different levels of activity in different parts and different solvent ***,acetone extract of stem showed the best antioxidant *** Gram-positive bacteria were more susceptible than Gram-negative bacteria and ***:The results indicated extract of Avicennia marina can be used as a promising source of natural antioxidant.

关键词： Avicennia marina Mangrove Antioxidant activity Total phenol content Total flavonoid content

Effect of Green Tea Consumption on Selected Metabolic Biomarkers in Asian Indian Women with Metabolic Syndrome

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Food and Nutrition Sciences 2014年第22期5卷 2167-2176页

作者： Kasturi Sen Ray pooja R. Singhania Department of Food Science and Nutrition Post Graduate Studies and Research in Home Science S.N.D.T. Women’s University Mumbai India

Evidence for benefits of anti-oxidative power of polyphenols in cardiovascular diseases has been established. In the present study, effect of polyphenol rich green tea on selected metabolic biomarkers among Asian Indian women with metabolic syndrome in normal free living condition has been recorded. Thirty three Asian Indian women (>30 y) confirmed as having metabolic syndrome, were enrolled for the present study based on written informed consent. Subjects were asked to consume three cups of green tea daily for a period of four months. Regular telephonic contact and periodic visit to supply the tea were made to ensure compliance with the intervention and maintenance of lifestyle and dietary pattern, as followed before the experimental period. Parameters analyzed at baseline have been used as control data to eliminate individual variation. Double-blind analysis of selected metabolic markers was done at baseline, 2 months and 4 months of the intervention period. At four months, a significant reduction from baseline was observed in weight (2%), waist circumference (4.5%), blood sugar (4%), glycosylated hemoglobin (4%), total cholesterol (11%) and LDL cholesterol (13%) (p < 0.01). The effect of green tea consumption on BMI, fasting insulin, HDL cholesterol, triglyceride, VLDL, C-reactive protein and homocysteine levels was either inconsistent or non significant. The present study showed that green tea consumption by free living subjects with metabolic syndrome resulted in significant improvements in some of the cardiovascular risk factors including visceral fat, blood sugar and cholesterol level.

关键词： Green Tea Metabolic Syndrome Metabolic Biomarkers Asian Indian Women

Clinical effect of Ayurveda medicine in recurrent post-operative ovary carcinoma: a case report

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TMR Integrative Medicine 2022年第13期6卷 1-4页

作者： pooja Verma Priyanka Katru Sharad Porte Department of Agadtantra National Institute of Ayurveda JaipurRajasthan 302002India Department of Agadtantra SKSS Ayurvedic Medical College and HospitalLudhiana-Punjab 141105India.

Background Abnormal growth of cell called as cancer or *** it may be seen in any age,more commonly seen in patients more than 50 years of *** epithelial ovarian cancer has been commonly seen[1].Approximately 70%of ovarian cancers have been diagnosed at progressive stage where only 30%of women suffering from this cancer,expect to survive up to 5 *** malignancy constitutes about 15-20 percent of genital *** India the incidence of ovarian carcinoma(age adjustable to range from 1.7 to 15.2 from 2012 to 2014)in various population-based registers of *** 59,276 have been estimated as new ovarian cancer causes by the end of 2020 and twenty percent of neoplasms are *** is the fourth most common cause of cancer death in women exceeded only by breast,colon and lung ***,the recurrent ovarian cancer is a fatal disease with few *** the fact that most patients have uniform surgery and chemotherapy,the status of recurring disease *** location of recurrence and the periods between recurrences are likewise widely *** recurrence,approximately 70%of advanced stage ovarian cancer patients relapse,and even in stage I or II patients,the relapse rate is 20%-25%.Because the survival curve following recurrence never plateaus,the goal of treatment for recurrent ovarian cancer is to control the disease and its symptoms,limit treatment-related damage,and preserve or improve quality of life[2].There seems to be no doubt that Ayurveda,with its holistic approach,is the finest way to limit the adverse treatment outcomes while also enhancing the patient’s quality of life.

关键词： neoplasms limit doubt

Cutaneous manifestations during recent pandemic,co-infection or pre or post COVID-19 manifestation-managed by Ayurveda

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Infectious Diseases Research 2021年第4期2卷 27-30页

作者： Shantala Priyadarshini pooja Gowda Pannaga Samir Department of Dr.Vijaya's Ayurveda Research&Therapy centre India

Background:Unique cutaneous manifestations simulating viral infection like intense itching,rashes,maculo popular eruptions etc are *** factors,underlying pathology,prevalence,whether it manifests in initial stage or post covid or if it predicts associated severity,linked symptoms,later complications,adverse drug reactions and many other associated issues need to be reported and ***:Reporting five cases with varied cutaneous manifestations during July 2020 from *** like skin lesion,maculo papular eruptions in two cases,two rash like manifestations were considered and managed by *** who lived in same house as covid infected person,travelled from red zone,who tested positive for COVID-19 ***:Itching and redness were the predominant symptoms which reduced quickly in 6 to 8 hours,eruptions gradually reduced in 3 to 6 ***:Cutaneous mani-festations during the pandemic suspected or confirmed COVID-19 infection 5 cases reported from India,managed by Ayurveda indicates post COVID-19 needs to be managed to improve quality of life and prevent further complications.

关键词： Maculopapular eruptions COVID-19 Ayurveda management Viral skin manifestation

To Analyze the Sensitivity of RT-PCR Assays Employing S Gene Target Failure with Whole Genome Sequencing Data during Third Wave by SARS-CoV-2 Omicron Variant

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Advances in Microbiology 2024年第5期14卷 247-255页

作者： pooja Patel Yogita Mistry Monika Patel Summaiya Mullan Viral Research and Diagnostic Laboratory Department of Microbiology Government Medical college Surat India

Introduction: Omicron is a highly divergent variant of concern (VOCs) of a severe acute respiratory syndrome SARS-CoV-2. It carries a high number of mutations in its spike protein hence;it is more transmissible in the community by immune evasion mechanisms. Due to mutation within S gene, most Omicron variants have reported S gene target failure (SGTF) with some commercially available PCR kits. Such diagnostic features can be used as markers to screen Omicron. However, Whole Genome Sequencing (WGS) is the only gold standard approach to confirm novel microorganisms at genetically level as similar mutations can also be found in other variants that are circulating at low frequencies worldwide. This Retrospective study is aimed to assess RT-PCR sensitivity in the detection of S gene target failure in comparison with whole genome sequencing to detect variants of Omicron. Methods: We have analysed retrospective data of SARS-CoV-2 positive RT-PCR samples for S gene target failure (SGTF) with TaqPath COVID-19 RT-PCR Combo Kit (ThermoFisher) and combined with sequencing technologies to study the emerged pattern of SARS-CoV-2 variants during third wave at the tertiary care centre, Surat. Results: From the first day of December 2021 till the end of February 2022, a total of 321,803 diagnostic RT-PCR tests for SARS-CoV-2 were performed, of which 20,566 positive cases were reported at our tertiary care centre with an average cumulative positivity of 6.39% over a period of three months. In the month of December 21 samples characterized by the SGTF (70/129) were suggestive of being infected by the Omicron variant and identified as Omicron (B.1.1.529 lineage) when sequence. In the month of January, we analysed a subset of samples (n = 618) with SGTF (24%) and without SGTF (76%) with Ct values Conclusions: During the COVID-19 pandemic, it took almost more than 15 days to diagnose infection and identify pathogen by sequencing technology. In contrast to that molecular assay provided qu

关键词： SARS-CoV-2 S Gene Target Failure Whole Genome Sequencing Omicron

PVA Based Polymer Electrolyte with Layered Filler Graphite for Natural Dye Sensitized Solar Cell

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Non-Metallic Material Science 2021年第1期3卷 10-14页

作者： Kumari pooja Priyanka Chawla Mridula Tripathi Department of Chemistry CMP Degree CollegeUniversity of AllahabadPrayagraj211002India

Graphite nanopowder is synthesized by mechanical method using ball mill and used as filler in polymer electrolyte film based on Polyvinyl alcohol(PVA)for application in natural dye sensitized solar cell(DSSC).In the present work dye sensitized solar cell has been assembled using electrolyte system composed of PVA as host polymer,ethylene carbonate as plasticizer,LiI:I2 as redox couple and graphite as filler;TiO2 modified with Copper oxide(CuO)photoanode in order to provide inherent energy barrier and natural cocktail dye as *** obtained solar cell conversion efficiency was about 3.2%with fill factor 52%using an irradiation of 100 mW/cm^(2) at 25℃C.

关键词： Polyvinyl alcohol DSSC Graphite Copper oxide Cocktail dye

Analysis of the Fertilizing and Bioremediation Potential of Leaf Litter Compost Amendment in Different Soils through Indexing Method

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Journal of Environmental Protection 2024年第3期15卷 265-297页

作者： Sophayo Mahongnao pooja Sharma Arif Ahamad Sarita Nanda Department of Biochemistry Daulat Ram College University of Delhi New Delhi India Department of Environmental Science Jamia Millia Islamia University New Delhi India

This research study explored the efficacy of leaf litter compost as a sustainable soil amendment with the objective of promoting soil health and mitigating the accumulation of potentially toxic elements. The investigation encompassed the impact of various organic compost amendments, including leaf compost, cow dung manure, kitchen waste compost, municipal organic waste compost, and vermicompost. The study employed Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to evaluate soil nutrient levels and concentrations of Potentially Toxic Elements (PTEs) such as arsenic, chromium, cadmium, mercury, lead, nickel, and lithium. The fertilization and bioremediation potential of these compost amendments are quantified using an indexing method. Results indicated a substantial increase in overall nutrient levels (carbon, nitrogen, phosphorus, potassium, and sulfur) in soils treated with leaf compost and other organic composts. Fertility indices (FI) are notably higher in compost-amended soils (ranging from 2.667 to 3.938) compared to those amended with chemical fertilizers (ranging from 2.250 to 2.813) across all soil samples. Furthermore, the mean concentrations of PTEs were significantly lower in soils treated with leaf compost and other organic compost amendments compared to those treated with chemical fertilizers amendments. The assessment through the indexing method revealed a high clean index (CI) for leaf compost amendment (ranging from 3.407 to 3.58), whereas the chemical fertilizer amendment exhibits a relatively lower CI (ranging from 2.78 to 3.20). Consequently, leaf compost and other organic composts exhibit the potential to enhance sustainable productivity, promoting soil health and environmental safety by improving nutrient levels and remediating potentially toxic elements in the soil.

关键词： Bio-Compost Soil Fertility Potentially Toxic Elements Bioremediation

MicroRNAs in lung cancer

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World Journal of Methodology 2014年第2期4卷 59-72页

作者： pooja Joshi Justin Middleton Young-Jun Jeon MichelaGarofalo Department of Molecular Virology Immunologyand Medical GeneticsComprehensive Cancer CenterTheOhio State University Wexner Medical CenterThe Ohio StateUniversityColumbusOH 43210United States

MicroRNAs have become recognized as key players in the development of cancer. They are a family of small non-coding RNAs that can negatively regulate the expression of cancer-related genes by sequence-selective targeting of mRNAs, leading to either mRNA degradation or translational repression. Lung cancer is the leading cause of cancer-related death worldwide with a substantially low survival rate. MicroRNAs have been confirmed to play roles in lung cancer develop-ment, epithelial-mesenchymal transition and response to therapy. They are also being studied for their future use as diagnostic and prognostic biomarkers and as potential therapeutic targets. In this review we focus on the role of dysregulated microRNA expression in lung tumorigenesis. We also discuss the role of microRNAs in therapeutic resistance and as biomarkers. We further look into the progress made and challenges remaining in using microRNAs for therapy in lung cancer.

关键词： Lung cancer MicroRNA MiRNA