SARS-CoV-2 seroprevalence and respiratory disease disability claims in Mexico City Metropolitan Area.

OBJECTIVE: To characterize the impact of SARS-CoV-2 infection in workers from an essential large-scale company in the Greater Mexico City Metropolitan Area using point prevalence of acute infection, point prevalence of past infection through serum antibodies and respiratory disease short-term disability claims (RD-STDC). MATERIALS AND METHODS: Four randomized surveys, three during 2020 before and one after (December 2021) vaccines' availability. OUTCOMES: point prevalence of acute infection through saliva PCR (polymerase chain reaction) testing, point prevalence of past infection through serum antibodies against Covid-19, RD-STDC and prevalence of symptoms during the previous six months. RESULTS: Prevalence of SARS-CoV-2 cases was 1.29-4.88%, on average, a quarter of participants pre-vaccination were seropositive; over half of participants with a RD-STDC had antibodies. The odds of having antibodies were 6-7 times more among workers with an RD-STDC. CONCLUSIONS: High antibody levels against Covid-19 in this study population reflects that coverage is high among workers in this industry. STDCs are a useful tool to track workplace epidemics.

Does vegetation accelerate coastal dune erosion during extreme events?

A broadly accepted paradigm is that vegetation reduces coastal dune erosion. However, we show that during an extreme storm event, vegetation surprisingly accelerates erosion. In 104-m-long beach-dune profile experiments conducted within a flume, we discovered that while vegetation initially creates a physical barrier to wave energy, it also (i) decreases wave run-up, which creates discontinuities in erosion and accretion patterns across the dune slope, (ii) increases water penetration into the sediment bed, which induces its fluidization and destabilization, and (iii) reflects wave energy, accelerating scarp formation. Once a discontinuous scarp forms, the erosion accelerates further. These findings fundamentally alter the current understanding of how natural and vegetated features may provide protection during extreme events.

Natural sweeteners: Sources, extraction and current uses in foods and food industries.

Food producers have leaned towards alternative natural and synthetic sweeteners in food formulations to satisfy market demands. Even so, several synthetic sweeteners (e.g., aspartame, saccharin, sucralose) are becoming less popular due to health-related concerns, lower nutritional values, and controversies around their safety. Conversely, natural sweeteners confer favourable customer perceptions due to their association to a healthier lifestyle and higher nutritional values. This article discusses the evidence of natural sweeteners in the available commercial products. A comprehensive review of natural sweeteners is presented, which includes their resources, properties and extraction methods, as well as a discussion on several emerging technologies that offer improvements to the traditional extraction methods. Finally, the progress of natural sweeteners in the food industry is assessed, and the commercial food products containing these natural sweeteners are mentioned.

Association of E-cigarettes with adolescent alcohol use and binge drinking-drunkenness: A systematic review and meta-analysis.

Background: E-cigarette (ECIG) use has increased substantially in the past decade. Co-use of alcohol and ECIGS may have serious consequences in adolescents. Objectives: To evaluate the association of e-cigarettes (ECIGs) with alcohol use in adolescents. Methods: Searched databases included PubMed, EMBASE, CINAHL, PsycINFO, Web of Science, and gray literature. Studies were included if they contained a non-E-cigarette group (NON-ECIG), an ECIG group, detailed rates of alcohol use, binge drinking, or drunkenness and included adolescents. Two independent reviewers extracted data using MOOSE guidelines. Evidence quality across studies was assessed using Cochrane GRADE methodology. Summary effects of ECIG vs. NON-ECIG use on any alcohol use and a composite of binge drinking/drunkenness were calculated using a random-effects model. Results: 28 of 3768 initially identified studies were included: 25 cross-sectional, 3 cohort studies, N = 458,357 total subjects (49.6% females). Pooling of data showed that ECIG users had a higher risk for any alcohol use compared to NON-ECIG users (Odds Ratio/OR 6.62, 95% confidence interval/CI 5.67-7.72) and a higher rate of binge drinking/drunkenness compared to NON-ECIG users (OR 6.73, 95% CI 4.5 - 10.07). The subset of high school ECIG users had higher rates of alcohol use (OR 8.17, 95% CI 5.95-11.2) and binge drinking/drunkenness (OR 7.98, 95% CI 5.98-10.63) compared to NON-ECIG users. Conclusion: ECIG users had a higher risk of alcohol use and binge drinking/drunkenness compared to NON-ECIG users. Our findings indicate that interventions to reduce ECIG use should be coupled with measures to reduce alcohol use in adolescents.Abbreviations: ECIG: e-cigarettes; NON-ECIG: non e-cigarettes.

Quality, Trustworthiness, Readability, and Accuracy of Medical Information Regarding Common Pediatric Emergency Medicine-Related Complaints on the Web.

BACKGROUND: The Internet is a universal source of information for parents of children with acute complaints. OBJECTIVES: We sought to analyze information directed at parents regarding common acute pediatric complaints. METHODS: Authors searched three search engines for four complaints (child + fever, vomiting, cough, stomach pain), assessing the first 20 results for each query. Readability was evaluated using: Flesch-Kincaid Grade Level, Gunning Fog, Simple Measure of Gobbledygook, and the Coleman-Liau Index. Two reviewers independently evaluated Journal of the American Medical Association (JAMA) Benchmark Criteria and National Library of Medicine (NLM) Trustworthy scores. Two physicians (emergency medicine/EM, pediatric EM) analyzed text accuracy (number correct divided by total number of facts). Disagreements were settled by a third physician. Accuracy was defined as ≥ 95% correct, readability as an 8th-grade reading level, high quality as at least three JAMA criteria, and trustworthiness as an NLM score ≥ 3. Accurate and inaccurate websites were compared using chi-squared analysis and Mann-Whitney U test. RESULTS: Eighty-seven websites (60%) were accurate (k = 0.94). Sixty (42%) of 144 evaluable websites were readable, 38 (26%) had high-quality JAMA criteria (kappa/k = 0.68), and 44 (31%) had reliable NLM trustworthy scores (k = 0.66). Accurate websites were more frequently published by professional medical organizations (hospitals, academic societies, governments) compared with inaccurate websites (63% vs. 33%, p < 0.01). There was no association between accuracy and physician authorship, search rank, quality, trustworthiness, or readability. CONCLUSION: Many studied websites had inadequate accuracy, quality, trustworthiness, and readability. Measures should be taken to improve web-based information related to acute pediatric complaints.

¿Existen los celos normales? trastorno delirante celotípico / ¿Is there normal jealousy? celotypic delusional disorder summary

Caso Clínico: Mujer de 52 años, casada, dos hijos. Tuvo una infancia y adolescencia en la que predominó el estricto control paterno y la actitud temerosa de su madre, siendo prioritarias las responsabilidades. Su carácter se fue modelando bajo una visión de mundo hostil. En un medio muy restringido, conoció a su esposo, siendo ésta su única relación sentimental. Luego de una histerosalpingooforectomía, la paciente interpreta un hecho puntual de una forma equivoca, bajo la idea de ser engañada, surgiendo la idea delirante. Sin embargo, el resto de su comportamiento parece ajustado a la realidad.

Woman of 52 years, married, two children. He had a childhood and adolescence dominated by strict parental control and fearful attitude of his mother, with responsibilities being a priority. His character was modeled under a hostile worldview. In a very restricted environment, she met her husband, this being her only sentimental relationship. After a hysterosalpingo-oophorectomy, the patient interprets a specific event in a mistaken way, under the idea of being deceived, with the delusional idea emerging. However, the rest of his behavior seems adjusted to reality