Knowledge attitude and practice on prevention of hepatitis B infection among medical students of a tertiary care centre in Tamil Nadu, India

Background: Hepatitis B infection is a serious global public health problem. About two billion people are infected with hepatitis B Virus (HBV) all over the world. The prevalence of HBV infection in India is 4%(2%-8%) with more prevalence among health care workers. Medical students represent a group that is at high-risk for acquiring and spreading hepatitis B infection. Despite increasing prevalence of HBV infection, there is paucity of knowledge, attitude and practice on HBV among medical students. Objective of the study was to assess the knowledge, attitude and practices on prevention of hepatitis B infection among medical students of Sree Mookambika Institute of Medical Sciences, Kulasekharam.Methods: A cross sectional study was conducted among 205 MBBS students using a pretested self-administered questionnaire for assessing the knowledge, attitude, and practice on prevention of HBV infection after obtaining informed consent from the participants.Results: Among 205 MBBS students, correct response towards Knowledge, Attitude, and Practices were given by 77.07%, 77.56%, and 76.59% respectively, 79.5% of the students were fully vaccinated; 20.5% were partially vaccinated against Hepatitis B Virus infection.Conclusions: The medical students are at a very high risk of contracting HBV infection during their training period in view of low HBV vaccine uptake rate and high chance of accidental exposure to blood infected with HBV. Creating awareness among medical students on various aspects of Hepatitis B infection through health education programs before their exposure in medical colleges and subjecting them to active immunization against HBV are mandatory to control the spread of Hepatitis B viral infection

Professional Quality of Life and Mental Health among Doctors in Tamil Nadu during COVID19 Pandemic

Background: The pandemic COVID19, a serious global threat has led to elevated levels of pressure on medical professionals. The research shows that occupational stressors has been significantly associated with the pandemic.Objective: To estimate the professional quality of life of doctors in Tamil Nadu and their mental health during the COVID19 pandemic. Settings andDesign: Cross-sectional study in Tamil Nadu, South India. Method: Among 318 doctors from both private and government sectors in Tamil Nadu, South India during April 9th - May 10th 2021, the study was conducted to estimate the professional quality of life [Compassion Satisfaction (CS), Secondary Traumatization (ST) and burnout] using ProQOL-5 scale. Depression and Anxiety were estimated using PHQ-9 and GAD-7 scales respectively. Statistical analysis used: Association between the variables was found using Chi-square test. Results: Among the 318 respondents (170 males and 148 females), CS and ST levels were high in 77(24.2%), and 10(3.1%) respondents respectively. Severe depression and anxiety were among 36(11.3%) and 109(34.3%) respectively. Statistically significant association was found for Burnout (?2=55.671; OR=15.135; 95% CI=6.361-36.013 and ?2=57.518; OR=18.014; 95% CI=7.054-46.007) and ST (?2=56.701; OR=15.432; 95% CI=6.486-36.717 and ?2=26.281; OR=4.558; 95% CI=2.476-8.390) with both depression and anxiety (p<0.05). Conclusions: Doctors of Tamil Nadu, South India are challenged with adverse mental health outcomes during the COVID-19 pandemic with a significant association between the quality of life at work and psychological distress

Vague Cosets

In this paper we study the vague cosets and their properties.These conceptsnbsp are used in the development of some important results and theorems about vague groups and vague normalgroups.Also some of their important properties havenbspbeen investigated

Sea turtles support sustainable livelihoods at Ostional, Costa Rica

Ostional in Costa Rica is the second largest nesting site of the olive ridley sea turtle Lepidochelys olivacea, which is categorized as Vulnerable on the IUCN Red List. In Ostional the local community helps maintain the nesting site and collects olive ridley eggs for consumption and trade within Costa Rica. Since its inception in 1987 the egg harvesting project has integrated sea turtle conservation with community development. We assessed the current status of this project in terms of community awareness, dependency, involvement and perceptions, using a household survey and semi-structured interviews with key informants. We also compared some of our findings with those of previous studies at the site, finding that the project has fewer dependents, primary livelihood activities have shifted towards tourism and hospitality, and respondents are more aware about environmental conservation and stewardship. We map outcomes of the project with the Sustainable Livelihoods Framework, and suggest that further capacity building for research and tourism could contribute towards sustaining the turtle population, local livelihoods, and the community-based conservation institution

Stress-induced changes in CARF expression determine growth arrest, apoptosis, or malignant transformation in cultured human cells: Molecular evidence and its application

Background: CARF (Collaborator of ARF)/CDKN2AIP is an essential protein, first cloned as a binding partner of ARF. It was subsequently shown to interact with p53, HDM2 proteins and regulate growth arrest and apoptosis by its multimodal mechanism of action. Over-expression of CARF caused senescence like growth arrest of cells, its knock-down triggered apoptosis. Intriguingly, malignantly transformed cells showed high level of CARF expression. Based on these findings, we hypothesized that level of CARF expression may be a key determinant of cell proliferation fates; where an increase in its levels causes growth arrest/senescence, but beyond a threshold it activates carcinogenesis. Methods: We utilized in vitro cell culture models using retrovirus-driven expression of CARF to achieve over-expression and super-expression of CARF. Analysis of CARF levels was undertaken by biochemical and imaging protocols. Cells exposed to a variety of stresses including physiological, environmental, oxidative, radiation and chemotherapeutics was examined for CARF expression and corresponding cell proliferation fates. Results: Induction of Senescence was seen in cells over-expressing CARF. On the other hand, cells compromised for CARF showed apoptosis, and the ones with super-expression of CARF exhibited malignant transformation. CARF expression analysis in these experimental models endorsed the concept of cell-fate determining role of CARF. Conclusions: We present molecular evidence of the bridging role of CARF in stress-aging-cancer phenotypes and its application in pharmaceuticals and nutraceuticals as a diagnostic and prognostic marker for stress and cancer treatments

Quantitation of nitrofurantoin in human plasma by liquid chromatography tandem mass spectrometry

A reliable, selective and sensitive LC-MS/MS assay has been proposed for the determination of nitrofurantoin in human plasma. The analyte and nitrofurazone were extracted from 100 µL of human plasma via SPE on Strata-X 33 µm extraction cartridges. Chromatography was done on a BDS Hypersil C18 (100 mm × 4.6 mm, 5 µm) column under isocratic conditions. Quantitation was done using the multiple reaction monitoring (MRM) mode for deprotonated precursor to product ion transitions of nitrofurantoin (m/z 237.0 → 151.8) and nitrofurazone (m/z 197.0 →123.9). The limit of detection and the lowest limit of quantitation of the method were 0.25 ng mL–1 and 5.00 ng mL–1, respectively, with a linear dynamic range of 5.00–1500 ng mL–1 for nitrofurantoin. The intra-batch and inter-batch precision (RSD, %) was ≤ 5.8 %, while the mean extraction recovery was > 92 %. The method was successfully applied to a bioequivalence study of a 100 mg nitrofurantoin capsule formulation in 36 healthy subjects

How People Foraging in Urban Greenspace Can Mobilize Social–Ecological Resilience During Covid-19 and Beyond

Informal foraging for food and other natural materials in urban greenspaces is an activity undertaken by many across the world. For some, foraging is a necessary means of survival and livelihood, while for others, it provides cultural and recreational opportunities. In the socioeconomic crises induced by Covid-19, foraging can help communities, especially (but not exclusively) vulnerable people, cope with the impacts of lockdowns, and associated economic decline. In the long run, foraging can help improve social–ecological resilience in urban systems, particularly in response to climate, economic, and disease disruptions. First, we elaborate the ways in which urban foraging can provide immediate relief from the shocks to natural, human, social, physical, and financial capital. We then describe how over time, the livelihood, food, and income diversification brought about by foraging can contribute to preparedness for future uncertainties and gradual change. Cities are increasingly becoming home to the majority of humanity, and urban foraging can be one of the pathways that makes cities more liveable, for humans as well as other species we coexist with. Through the capitals framework, we explore the role foraging could play in addressing issues of biodiversity conservation, culture, and education, good governance and social justice, multifunctional greenspace, and sustainable nature-based livelihoods in urban areas

Learning to Efficiently Plan Robust Frictional Multi-Object Grasps

We consider a decluttering problem where multiple rigid convex polygonal objects rest in randomly placed positions and orientations on a planar surface and must be efficiently transported to a packing box using both single and multi-object grasps. Prior work considered frictionless multi-object grasping. In this paper, we introduce friction to increase picks per hour. We train a neural network using real examples to plan robust multi-object grasps. In physical experiments, we find a 13.7% increase in success rate, a 1.6x increase in picks per hour, and a 6.3x decrease in grasp planning time compared to prior work on multi-object grasping. Compared to single object grasping, we find a 3.1x increase in picks per hour

History of malaria treatment as a predictor of subsequent subclinical parasitaemia: A cross-sectional survey and malaria case records from three villages in Pailin, western Cambodia

Background: Treatment of the sub-clinical reservoir of malaria, which may maintain transmission, could be an important component of elimination strategies. The reliable detection of asymptomatic infections with low levels of parasitaemia requires high-volume quantitative polymerase chain reaction (uPCR), which is impractical to conduct on a large scale. It is unknown to what extent sub-clinical parasitaemias originate from recent or older clinical episodes. This study explored the association between clinical history of malaria and subsequent sub-clinical parasitaemia. Methods: In June 2013 a cross-sectional survey was conducted in three villages in Pailin, western Cambodia. Demographic and epidemiological data and blood samples were collected. Blood was tested for malaria by high-volume qP