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Stress and strain analysis of functionally graded plates with circular cutout
Dhiraj, Vikash Singh,Jadvani, Nandit,Kalita, Kanak Techno-Press 2016 Advances in materials research Vol.5 No.2
Stress concentration is an interesting and essential field of study, as it is the prime cause of failure of structural parts under static load. In the current paper, stress and strain concentration factors in unidirectional functionally graded (UDFGM) plate with central circular cutout are predicted by carrying out a finite element study on ANSYS APDL platform. The present study aims to bridge the lacuna in the understandings of stress analysis in perforated functionally graded plates. It is found that the material variation parameter is an important criterion while designing a perforated UDFGM plate. By selecting a proper material variation parameter and direction of material gradation, the stress and strain concentrations can be significantly reduced.
Singh, Atul P.,Murale, Dhiraj P.,Ha, Yonghwang,Liew, Hyunjeong,Lee, Kang Mun,Segev, Aviv,Suh, Yoo-Hun,Churchill, David G. The Royal Society of Chemistry 2013 Dalton transactions Vol.42 No.10
<P>Novel, high “<I>turn-on</I>” Hg<SUP>2+</SUP> and O<SUB>2</SUB><SUP>−</SUP> fluorescence behaviour (∼25-fold) with probes bearing [<I>S</I><SUB>thi</SUB><I>N</I><SUB>py</SUB>] and [<I>S</I><SUB>thi</SUB><I>N</I><SUB>py</SUB><I>N</I><SUB>py</SUB>] binding receptors, joined by oxidizable sulphides, may involve <I>S</I>-bound transient ROS species; such optical O<SUB>2</SUB><SUP>−</SUP> behaviour operates moderately in neuroblastoma.</P> <P>Graphic Abstract</P><P>Probes bearing [<I>S</I><SUB>thi</SUB><I>N</I><SUB>py</SUB>] binding atoms and joined by oxidizable sulphides engage in selective novel high “<I>turn-on</I>” Hg<SUP>2+</SUP>“<I>AND</I>” O<SUB>2</SUB><SUP>−</SUP> fluorescence behaviour (∼25 times, <I>λ</I><SUB>em</SUB> = 524 nm); transient ROS species may be involved. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2dt32135a'> </P>
Singh, Atul P.,Tsay, Olga G.,Murale, Dhiraj P.,Jun, Taehong,Liew, Hyunjeong,Suh, Yoo-Hun,Churchill, David G. The Royal Society of Chemistry 2013 The Analyst Vol.138 No.10
<P>Highly specific and sensitive fluorescence detection of hypochlorite in nonbiotic pure water (rapid “<I>turn-on</I>”, ∼400 fold, <I>λ</I><SUB>em</SUB>∼ 560 nm) as well as in living neuronal cell cultures (neutral pH) involves oxidation of a 2-sulfide-2-benzoic acid pendent group in a new <I>meso</I>-thienyl-BODIPY donor–acceptor probe.</P> <P>Graphic Abstract</P><P>A probe bearing an ancillary 2-sulfide-benzoic acid group allows for selective “turn-on” hypochlorite detection in neuroblastoma media. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c3an00297g'> </P>
Awareness of cervical cancer screening among nursing staff in a tertiary institution of rural India
Ekta Singh,Shikha Seth,Vidya Rani,Dhiraj Kumar Srivastava 대한부인종양학회 2012 Journal of Gynecologic Oncology Vol.23 No.3
Objective: To determine the baseline information about the knowledge of cervical cancer and explore attitude and practice of Pap smear screening among staff nurses. Methods: A pretested structured self administered questionnaire based survey was done on 205 staff nurses working in Rural Institute of Medical Sciences & Research, Saifai, Etawah, containing mostly recognition and some recall type questions about demographics, knowledge about cervical cancer, its risk factors, screening techniques, attitudes towards cervical cancer screening and its practices. Results: In this study, 74% knew that Pap smear is used for detection of cervical cancer, but only 59% knew that it can detect both cancerous as well as precancerous lesions of the cervix. Only 18% of the respondents knew about human papillomavirus vaccine. A 47% of respondents had never taken a Pap smear; 63% never referred patients for the screening. Most nurses (79%) thought that a speculum examination and Pap smear are procedures to be performed by the doctors. Among all the respondents, only 11% had ever undergone a Pap smear on themselves. Conclusion: Despite knowledge of the gravity of cervical cancer and prevention by screening, attitudes and practices towards screening were negative. Objective: To determine the baseline information about the knowledge of cervical cancer and explore attitude and practice of Pap smear screening among staff nurses. Methods: A pretested structured self administered questionnaire based survey was done on 205 staff nurses working in Rural Institute of Medical Sciences & Research, Saifai, Etawah, containing mostly recognition and some recall type questions about demographics, knowledge about cervical cancer, its risk factors, screening techniques, attitudes towards cervical cancer screening and its practices. Results: In this study, 74% knew that Pap smear is used for detection of cervical cancer, but only 59% knew that it can detect both cancerous as well as precancerous lesions of the cervix. Only 18% of the respondents knew about human papillomavirus vaccine. A 47% of respondents had never taken a Pap smear; 63% never referred patients for the screening. Most nurses (79%) thought that a speculum examination and Pap smear are procedures to be performed by the doctors. Among all the respondents, only 11% had ever undergone a Pap smear on themselves. Conclusion: Despite knowledge of the gravity of cervical cancer and prevention by screening, attitudes and practices towards screening were negative.
Isothiocyanates in Brassica: Potential Anti Cancer Agents
Sharma, Anubhuti,Sharma, Ashok,Yadav, Prashant,Singh, Dhiraj Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.9
Isothiocyanates are naturally occurring small molecules that are formed from glucosinolate precursors of cruciferous vegetables. Many isothiocyanates, both natural and synthetic, display anti-carcinogenic activity because they reduce activation of carcinogens and increase their detoxification. This minireview summarizes the current knowledge on isothiocyanates and focuses on their role as potential anti-cancer agents.
Morbidity Patterns among Menopausal Women in Rural Uttar Pradesh, India: A Cross-Sectional Study
( Debora J. Mathew ),( Sandip Kumar ),( Pankaj Kumar Jain ),( Dhiraj Kumar Srivastava ),( Vaibhav Singh ),( Kiran Krishnappa ) 대한폐경학회 2021 대한폐경학회지 Vol.27 No.1
Objectives: The quality of life declines gradually as women enter menopause, owing to the various problems associated with estrogen deficiency and aging, which adds to their morbidities. This study aimed to investigate the patterns of morbidity among rural menopausal women and compare the morbidity patterns among menopausal transition group and post-menopausal women. Methods: This community-based cross-sectional study included menopausal women aged 45-55 years from rural areas of the Etawah district, Uttar Pradesh, India. To select blocks and villages of the district, multistage random sampling was performed. According to a pretested, semistructured schedule, data were collected through interviews. Results: A total of 315 women participated in the study. The most frequent complaints among the participants were of feeling tired and worn out (85.1%) and of muscle and joint pains (67.6%). Poor memory (P = 0.046) and diabetes (P = 0.024) were more common in women who were in the menopause transition phase than in those who were in the postmenopausal phase. Conclusions: This study showed that majority of the menopausal women suffered from physical problems. Lifestyle modification and awareness programs will be beneficial among women in menopausal transition, to reduce the morbidity later in post-menopausal stage. Behaviour change communication, family and community support are essential in post-menopausal women, to help them cope with various morbid conditions.
Joghee Nanjundan,Channappa Manjunatha,Jalli Radhamani,Ajay Kumar Thakur,Rashmi Yadav,Arun Kumar,Mohan Lal Meena,Rishi Kumar Tyagi,Devender Kumar Yadava,Dhiraj Singh 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.2
Powdery mildew of Indian mustard (Brassica juncea), caused by Erysiphe cruciferarum, is emerging as ma- jor problem in India. All the Indian mustard cultivars presently grown in India are highly susceptible to pow- dery mildew and so far no resistance source has been reported. In this study, with an aim to identify resistant source, 1,020 Indian mustard accessions were evaluated against E. cruciferarum PMN isolate, at Wellington, The Nilgiris, Tamil Nadu, India under natural hot spot conditions. The study identified one accession (RDV 29) with complete resistance against E. cruciferarum PMN isolate for the first time, which was consistent in five independent evaluations. Genetic analysis of F1, F2 and backcross populations obtained from the cross RSEJ 775 (highly susceptible) × RDV 29 (highly resistant) for two season revealed that the resistance is governed by two genes with semi-dominant and gene dosage effect. Further, a new disease rating system using six scales (0, 1, 2, 3, 4, and 5) has also been proposed in this study to score powdery mildew based on progress of fungal growth in different plant parts of the F2 population. The outcome of this study viz. newly identified powdery mildew-resistant Indian mustard accession (RDV 29), information on inheritance of resistance and the newly developed disease rating scale will provide the base for development of powdery mildew-resistant cultivars of Indian mustard.