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Impact of 13C Contamination on Neutron Yield Measurement in the 27AI(α, n) Reaction
We have performed the measurement of the 27Al(α, n) cross section at IFIN-HH for a range of energies from 2.5 to 5.2 MeV, using an array of 28 3He counters arranged in 3 concentric rings (ELIGANT-TN). Here we present the experimental setup and discuss the role of the 13C contamination which effects the measurements in the low-energy region. Energy-dispersive X-ray spectroscopy carried out before and after the experiment suggested an increase in the 13C concentration during the experiment.
Conference Proceeding
Public health risks related to food safety issues in the food market: a systematic literature review
Background
Food safety in the food market is one of the key areas of focus in public health, because it affects people of every age, race, gender, and income level around the world. The local and international food marketing continues to have significant impacts on food safety and health of the public. Food supply chains now cross multiple national borders which increase the internationalization of health risks. This systematic review of literature was, therefore, conducted to identify common public health risks related to food safety issues in the food market.
Methods
All published and unpublished quantitative, qualitative, and mixed method studies were searched from electronic databases using a three step searching. Analytical framework was developed using the PICo (population, phenomena of interest, and context) method. The methodological quality of the included studies was assessed using mixed methods appraisal tool (MMAT) version 2018. The included full-text articles were qualitatively analyzed using emergent thematic analysis approach to identify key concepts and coded them into related non-mutually exclusive themes. We then synthesized each theme by comparing the discussion and conclusion of the included articles. Emergent themes were identified based on meticulous and systematic reading. Coding and interpreting the data were refined during analysis.
Results
The analysis of 81 full-text articles resulted in seven common public health risks related with food safety in the food market. Microbial contamination of foods, chemical contamination of foods, food adulteration, misuse of food additives, mislabeling, genetically modified foods (GM foods), and outdated foods or foods past their use-by dates were the identified food safety–related public health risks in the food market.
Conclusion
This systematic literature review identified common food safety–related public health risks in the food market. The results imply that the local and international food marketing continues to have significant impacts on health of the public. The food market increases internationalization of health risks as the food supply chains cross multiple national borders. Therefore, effective national risk-based food control systems are essential to protect the health and safety of the public. Countries need also assure the safety and quality of their foods entering international trade and ensure that imported foods conform to national requirements.
Journal Article
Characterization of Impurities and Degradants Using Mass Spectrometry
The book highlights the current practices and future trends in structural characterization of impurities and degradants. It begins with an overview of mass spectrometry techniques as related to the analysis of impurities and degradants, followed by studies involving characterization of process related impurities (including potential genotoxic impurities), and excipient related impurities in formulated products. Both general practitioners in pharmaceutical research and specialists in analytical chemistry field will benefit from this book that will detail step-by-step approaches and new strategies to solve challenging problems related to pharmaceutical research.
eBook
S.M.A.R.T.S. and the poison plates
When just ten kids from two cliques at Hubble Middle School get sick after eating in the cafeteria it seems like somebody is deliberately trying to poison them, and while there are several suspects for who might want to get back at the super-cool girls, the other group are the innocuous comic book buffs--so it is up to Zoe and the other members of the S.M.A.R.T.S. to solve the mystery.
Book
The development of the “Laab Nuer Model” for food safety management in handling traditional Lanna cuisine in Thailand
Food contaminants in traditional Lanna cuisine persist as a public health issue since there is no readily apparent method to prevent this contamination. Hence, this study was conducted to develop a practical strategy for reducing food hazards in traditional Lanna cuisine, according to the farm-to-fork framework across upstream, midstream, and downstream operations. In the upstream operation, 80 sample analyses in a fresh market using the chemical test-kits were conducted, and 31 samples of produce were collected to analyze them for Paraquat contamination. In the midstream operation, a biological contamination analysis was conducted on 25 of the food handlers. In the downstream operation, which refers to the consumers, this study included a questionnaire to measure the level of agreement for the different factors by using the One Way ANOVA at the 0.05 level of significance. According to the “Laab Nuer Model” for traditional Lanna cuisine, one needs to consider the following at every stage:1) Uncontaminated market produce, including monitoring the raw material in the market, providing the activities linked to appropriate agricultural practices, and supporting the higher price if farmers adhere to good agricultural practices; 2) Good Restaurants including the monitoring of their raw materials, participating in food safety practices, and providing food safety training; 3) Paying Attention to the Consumer including training in food safety in the younger generation and promoting food safety. To significantly decrease the impact of foodborne illness in this and other locations, this model should be implemented widely, for example, in supermarkets and flea markets.
Journal Article