A REVIEW ON 210Po AND 210Pb IN INDIAN SEAFOOD AND DOSE TO CONSUMERS

2019 ◽  
Vol 187 (2) ◽  
pp. 139-153
Author(s):  
G Sankaran Pillai ◽  
S Chandrasekaran ◽  
R Baskaran ◽  
B Venkatraman ◽  
R Deepu

Abstract India is the second largest seafood producer in the world marketing more than 7000 edible species. In this regard, commendable studies have been conducted since the 1970s by different research groups and more data are reported. In this work, all the studies on 210Po and 210Pb measurements in abiotic and biotic components of India have been combined and reviewed. The concentrations of 210Po and 210Pb are estimated by radiochemical separation followed by alpha counting. Grain size, season, Tsunami waves and place of sampling have a decisive bearing on 210Po and 210Pb concentration in abiotic components. Plankton shows a higher Kd factor (104) compared to seaweeds and sea grass (103). Pond ecosystems recorded the highest Kd factor (4·3 × 104) compared to other freshwater and marine ecosystems. Bioaccumulation of 210Po and 210Pb varies with respect to variety of seafood. The committed effective dose (CED) calculated for shellfish species maintained a higher range of 2.5 × 10−2 mSv/y to 9.8 × 10−1 mSv/y and for fish species fluctuated from 3.8 × 10−4 mSv/y to 2.0 × 10−1 mSv/y. The studies conducted so far are scattered, and need to be gathered for future reference and planning (i.e. There is not much information available for Kerala, Karnataka, Maharashtra, Gujarat, Andhra, West Bengal and Odessa coast). Therefore, it is strongly recommended that further and more complete research is undertaken to study the bioaccumulation of 210Po and 210Pb from seafood. Overall, the present review concludes that Indian seafood is radiologically safe.

Author(s):  
Valeria Seidita ◽  
Francesco Lanza ◽  
Arianna Pipitone ◽  
Antonio Chella

Abstract Motivation The epidemic at the beginning of this year, due to a new virus in the coronavirus family, is causing many deaths and is bringing the world economy to its knees. Moreover, situations of this kind are historically cyclical. The symptoms and treatment of infected patients are, for better or worse even for new viruses, always the same: more or less severe flu symptoms, isolation and full hygiene. By now man has learned how to manage epidemic situations, but deaths and negative effects continue to occur. What about technology? What effect has the actual technological progress we have achieved? In this review, we wonder about the role of robotics in the fight against COVID. It presents the analysis of scientific articles, industrial initiatives and project calls for applications from March to now highlighting how much robotics was ready to face this situation, what is expected from robots and what remains to do. Results The analysis was made by focusing on what research groups offer as a means of support for therapies and prevention actions. We then reported some remarks on what we think is the state of maturity of robotics in dealing with situations like COVID-19.


Epidemiologia ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 315-324
Author(s):  
Juan M. Banda ◽  
Ramya Tekumalla ◽  
Guanyu Wang ◽  
Jingyuan Yu ◽  
Tuo Liu ◽  
...  

As the COVID-19 pandemic continues to spread worldwide, an unprecedented amount of open data is being generated for medical, genetics, and epidemiological research. The unparalleled rate at which many research groups around the world are releasing data and publications on the ongoing pandemic is allowing other scientists to learn from local experiences and data generated on the front lines of the COVID-19 pandemic. However, there is a need to integrate additional data sources that map and measure the role of social dynamics of such a unique worldwide event in biomedical, biological, and epidemiological analyses. For this purpose, we present a large-scale curated dataset of over 1.12 billion tweets, growing daily, related to COVID-19 chatter generated from 1 January 2020 to 27 June 2021 at the time of writing. This data source provides a freely available additional data source for researchers worldwide to conduct a wide and diverse number of research projects, such as epidemiological analyses, emotional and mental responses to social distancing measures, the identification of sources of misinformation, stratified measurement of sentiment towards the pandemic in near real time, among many others.


2005 ◽  
Vol 59 (3-4) ◽  
pp. 463-474 ◽  
Author(s):  
Olgica Dragicevic ◽  
Milan Baltic

The consumption of snail meat goes back to prehistoric times. Different ancient nations had snails on their menu, but Helices culture as a productive activity was born as a Roman culture. Some of the most economically important edible species are: Helix aspersa (Mtiller) Helixpomatia (Linne), Helix iucorum (Linne), Helix aperta (Born), Eobania vermiculata (Miiller). Together with its tasie, snail meat has several advantages over others: quite low lipid rate and calorie values versus rich mineral, essential amino acid and fatty acid content. The composition of snail meat is presented. In addition, the composition of different snail species and the part analyzed (pedal mass and visceral mass) is presented. Also, the differences in composition according to the species (snail meat horse/chicken meat, beef, swine meat, fish meat) are presented. The French are the world's leading consumers of snails. !n France snails come to market in a variety of ways. Estimated consumption of snails in France is around 40 000 tones/year. Total French imports account for 25% of world imports. France is also the leading exporter of prepared snails, mainly sold as preserved snails and prepared dishes. Snail imports have been much higher than exports (65 tones exported in 2002. vs. 2.700 tones imported). Despite the large consumption, only 3% of snails in France come from production (farming). Italy is in second place in the world consumption of snails, and Spain and Germany are in the third and fourth place. The development of snails consumption in Italy is followed with the same amount of production of snails in the whole biological circle. In 2001, from 24,700 tons, 9,350 tons (37.8%) came from production, 6 00 tons (2.4%) came from nature, and 14,750 tons (59.70%) came from imports (frozen, fresh and prepared snails). In Serbia, at the beginning of 2005, we had over 400 registered farms for snail production.


2020 ◽  
pp. 002198941989730
Author(s):  
Sushmita Sircar

The world wars definitively changed the relations with the state of the peoples of India’s northeastern frontier. The wars were both fought on their terrain (with the invasion of the Japanese army) and led to the recruitment of people from the region to serve in the British Army. The contemporary Anglophone Indian novel documents the lingering effects of this militarization in the many insurgencies that have fragmented the region in the postcolonial era. Kiran Desai’s The Inheritance of Loss (2006) depicts the Gorkhaland uprising of the 1980s in the Kalimpong district of West Bengal, which demanded a separate state, while Easterine Kire’s Bitter Wormwood (2011) describes the Naga peoples’ traditional way of life against the backdrop of attempts to declare independence from the Indian state. In this article I argue that these novels capture how these secessionist movements use the experience of the world wars to craft a political identity based on military brotherhood to claim independence from the Indian state. These movements thus undertake a complex reworking of the valences of the figure of the “soldier”, central to so many accounts of national integrity. At the same time, reproducing the nationalist logic of the Indian state, these novels more readily recognize an “indigenous” identity based on a claim to the land as the political basis of nationhood. Hence, these novels about secessionist struggles reveal how certain narratives of nation formation become the only legitimate means for making claims for political rights and independent statehood over the course of the twentieth century.


The Analyst ◽  
1995 ◽  
Vol 120 (3) ◽  
pp. 643 ◽  
Author(s):  
Amit Chatterjee ◽  
Dipankar Das ◽  
Badal K. Mandal ◽  
Tarit Roy Chowdhury ◽  
Gautam Samanta ◽  
...  

2014 ◽  
Vol 507 ◽  
pp. 720-724
Author(s):  
Wan Qian Guo ◽  
Hai Ou Cao ◽  
Xian Jiao Zhou ◽  
Ren Li Yin

The occurrence of pharmaceuticals and personal care products (PPCPs) in surface water, and their potential impacts on human health are emerging issues all over the world. This paper summarizes the data from worldwide research groups, aiming to illustrate the occurrence of PPCPS, and their potential threatens to human health. Furthermore, the current efficient treatment methods for the PPCPS were discussed as well.


2016 ◽  
Vol 100 ◽  
pp. 181-186
Author(s):  
Nils Krister Persson

We develop the hypothesis that textile and nature have much in common and that in a time of biomimetics textile is a unique class of material that provides a bridge between artefacts, by definition synthetic, and biofacts - material entities found in and produced by nature, i.e. non-synthetic. Furthermore we formulate the (seemingly) contradictorily concept of Artificial Nature. Biomimetics sometimes emphasize the inspirational aspects so that science and technology get input from biology for new technological development for new artefacts. Artificial Nature instead emphasizes the other way around; adding sound, ecology based, technology to nature and in nature for enhancing ecosystem functions.Some characteristics of natural biofact materials and structures include pliability, softness, porosity, light weight, recyclability, and periodicity. Textiles are soft, foldable, of low weight, inherent porous, anisotropic as well as periodic, easily compatible with biodegradability and recyclability. Thus there are many similarities. These are discussed together with a number of cases where textiles are mimicking biofacts. We first look at synthetic see grass (Zostera marina) for remediation of one of the most important biotopes in the world where we show that textile processing techniques are able to make production efficient. Then we look at artificial leaves, i.e. photon collecting flexible patches and indicate the textile realization of such. One of the most valuable ecosystem services is the provision of clean water and maintaining a low degree of pollution in water is of outmost importance. Textile based water purification systems has been constructed and merged with fungus (Zygomycetes) we show the potential for enhancing wet land capability.


2010 ◽  
Vol 30 (2) ◽  
pp. 165-170 ◽  
Author(s):  
Sonali Paul ◽  
Tulika Chakraborty ◽  
Ajanta Halder ◽  
Debasis Bandopadhyay ◽  
Utpal Chaudhuri ◽  
...  

Arsenic is a naturally occurring metalloid that has been associated with increased incidence of human cancers in certain highly exposed populations. This present work aimed to study whether arsenic plays any role in the increased incidence of blood cancer among residents of West Bengal, India, which is one of the worst arsenic-affected areas of the world. Our study group included both blood cancer patients and age-, sex-matched healthy controls. We studied the arsenic concentration in the hair and nail samples of our study group. We found significantly higher arsenic concentration in the biological tissues of patients, which also correlated with their greater incidence of chromosomal aberrations. Thus, arsenic may act as a predisposing factor for blood cancer.


Author(s):  
Paolo Di Marco

Recent experimentation of boiling in different environments, namely in reduced or enhanced gravity and/or in the presence of electric fields, have shed new light on the comprehension of boiling phenomena and have focused the objectives of future investigation. The recent results achieved by the author and other research groups around the world are reported and discussed in the paper. After a short introduction on some fundamental phenomena and their dependence on force fields, pool and flow boiling are dealt with. In particular, it is stressed that due to increased coalescence peculiar flow regimes take place in reduced gravity, influencing the heat transfer performance. The application of an electric field may, in some instances, delay or avoid these regime transitions. In boiling at high flowrate, the phenomena are dominated by inertia and thus gravity-independent; however the threshold at which this occurs has still to be determined.


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