v.7 n.8 October
Parana Journal of Science and Education. v.7, n.8, October (2021).
Summary
Articles
Detection of Salmonella spp in food service establishments in Xalapa, Veracruz, México.
Marcela Rosas Nexticapa, Lauro Figueroa Valverde, María Magdalena Alvarez Ramirez, Maria Virginia del Socorro Mateu Armad, Raquel Estrella-Barrón, Xunaxi Magdalena Osorio-Álvarez, and Luis Ángel Juárez-Pacheco.
Parana J. Sci. Educ., v.7, n.8, (1-7), October 22, 2021.
DOI: tiny.cc/PJSE24476153v7i8p001-007
Abstract
The safety in the preparation of food must be guaranteed to preserve the health and quality of life of people, however, the unsanitary conditions in which many of the mobile establishments or dining rooms are found, increase the probability of incidence of foodborne disease. Therefore, the objective of this study is to carry out a biochemical analysis of the foods (cooked chicken) marketed by some establishments in Xalapa, Mexico. The results showed that 25% of these establishments showed positive activity for Salmonella spp. Besides, a cross-sectional descriptive observational study showed that this phenomenon could be due to a lack of knowledge about the use of the NOM-251-SSA1-2009 rule.
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Alireza Heidari, Elena Locci, and Silvia Raymond.
Parana J. Sci. Educ., v.7, n.8, (8-45), October 22, 2021.
DOI: tiny.cc/PJSE24476153v7i8p008-045
Abstract
Breast cancer radiotherapy is used for patients at high risk in areas such as family history of heart disease and the use of chemotherapy drugs. Imaging and treatment are performed. Because the most sensitive part of the patient's heart is located in the field of breast radiation therapy, radiation therapy is likely to cause heart complications for the patient. For patients at high risk of heart disease, deep tail radiation therapy is performed and thus the least radiation hits the heart tissue. And the side effects of treatment are greatly reduced. The technique of IMRT or "variable intensity radiation therapy" is another unique new method of radiation therapy.
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Artificial Intelligence Program to Support Breast Cancer Screening Using a Set of CT Scans.
Alireza Heidari, Elena Locci, and Silvia Raymond.
Parana J. Sci. Educ., v.7, n.8, (46-83), October 22, 2021..
DOI: tiny.cc/PJSE24476153v7i8p046-083
Abstract
The abundance of T cells helps predict the patient's response to immunotherapy, so researchers hope this new method could provide specific and more effective treatments for cancer. Scientists analyzed DNA sequencing data from patients 'cancerous tumors to see if they could detect T cell deficiency. DNA sequencing is often performed on cancerous patients' tumors. It is done to classify them and understand how the cancer progresses. Estimation of immune cells, which are important for cancer control, affects patient survival and guides treatment. Our goal was to be able to develop a new method for annotating immune cells directly from DNA sequences without the need for further data. DNA sequencing allows scientists to see the history and evolution of tumors. In this study, scientists developed a way to calculate the historical levels of T cells; By reassembling or modifying them, they are provided with tools that allow them to detect attackers. In particular, the scientists found a "signal" for the loss of TREC cell division, and by recording this, they were able to accurately estimate the number of T cells in the tumor. In recent years, screening inhibitors (IPCs), a type of immunotherapy, have emerged as a revolutionary treatment for many types of cancer. ICPs work by blocking proteins called checkpoints made by T lymphocytes. These checkpoints prevent strong immune responses, as they can sometimes prevent T lymphocytes from killing cancer cells. When these checkpoints are closed, T cells are better able to kill cancer cells. One of the biomarkers showed that the potential success of immunotherapy was predicted by the number of T cells available, and that the more T cells available to IPCs, the more cancer cells were killed. It provides the patient's response to treatment without the need for additional data. In fact, the process we have developed can go beyond the standard DNA sequence at no extra time or cost. Our tools also make it possible to study the immune system more than just cancer.
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Edible Cutlery: Futuristic Dining to Functional Sustenance.
Goutam Roy Chowdhury, Sourav Dutta, Nabonita Pal and Abhijit Mitra.
Parana J. Sci. Educ., v.7, n.8, (84-91), October 22, 2021..
DOI: tiny.cc/PJSE24476153v7i8p084-091
Abstract
Plastics are synthetic organic polymers of hydrocarbons that are modified to suit our purposes and performance via variety of additives, plasticizers, colors etc. These make them more robust, less bio-degradable and all the more toxic for human health. With an increase in the usage of plastics, over the counter food stalls and convenience food joints have adopted usage of plastic cutlery, which provide maintenance free service to the consumers. Although inexpensive and easy to use, plastic cutlery are used and discarded in large quantities and often end up fouling the environment. As they leech into the ecosystem, the sea carcinogenic petroleum by-products enter the food chain adversely affecting the biota. Globally, efforts are being mounted to educate the masses and take preventive measures to curb the deleterious effects of plastic contamination in the environment. Although the characteristics of plastic cutlery are hard to replicate, the requisite therefore is to act responsibly towards the environment and innovate a sustainable alternative to plastic cutlery, which are bio-degradable, eco-friendly, inexpensive, sustentative and often times nutritious. Globally, countries are coming up with new and better strategies to decrease the usage of plastic cutlery, cups and food packaging using bio-degradable and ecofriendly to decrease the amount of wastes generated, thereby taking steps in reducing global plastic waste influx.
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