The COVID States Project #77: Healthcare workers' perception of COVID-19 misinformation

How significant a problem is misinformation for the delivery of healthcare services? Misinformation, and any resulting misperceptions, certainly have the potential to negatively impact people’s attitudes and behaviors surrounding the COVID-19 pandemic. Whether or not someone internalizes misinformation depends on multiple factors, but one key consideration is their level of trust in established experts providing cues on COVID-19 behavior. For instance, people who do not trust sources such as the CDC will be less likely to follow its recommendations on COVID-19 prevention behaviors, and may instead opt to seek out information - which often turns out to be misinformation - on their own. Understanding the sources and effects of information and misinformation is therefore important.

Are Oropharyngeal Dysphagia Screening Tests Effective in Preventing Pneumonia?

Oropharyngeal dysphagia, a clinical condition that indicates difficulty in moving food and liquid from the oral cavity to the esophagus, has a markedly high prevalence in the elderly. The number of elderly people with oropharyngeal dysphagia is expected to increase due to the aging of the world’s population. Understanding the current situation of dysphagia screening is crucial when considering future countermeasures. We report findings from a literature review including citations on current objective dysphagia screening tests: the Water Swallowing Test, Mann Assessment of Swallowing Ability, and the Gugging Swallowing Screen. Pneumonia can be predicted using the results of the screening tests discussed in this review, and the response after the screening tests is important for prevention. In addition, although interdisciplinary team approaches prevent and reduce aspiration, optimal treatment is a challenging. Intervention studies with multiple factors focusing on the elderly are needed.

Forces that control self-organization of chemically-propelled Janus tori

Control of the individual and collective behavior of self-propelled synthetic micro-objects has immediate application for nanotechnology, robotics, and precision medicine. Despite significant progress in the synthesis and characterization of self-propelled Janus (two-faced) particles, predictive understanding of their behavior remains challenging, especially if the particles have anisotropic forms. Here, by using molecular simulation, we describe the interactions of chemically-propelled microtori near a wall. The results show that a torus hovers at a certain distance from the wall due to a combination of gravity and hydrodynamic flows generated by the chemical activity. Moreover, electrostatic dipolar interactions between the torus and the wall result in a spontaneous tilt and horizontal translation, in a qualitative agreement with the experiment. Simulations of the dynamics of two tori near a wall provide evidence for the formation of stable self-propelled bound states. Our results illustrate that self-organization at the microscale occurs due to a combination of multiple factors, including hydrodynamic, chemical, and electrostatic interactions.

EXPRESS: People’s Preferences for Different Types of Rational Numbers in Linguistic Contexts

Rational numbers, like fractions, decimals, and percentages, differ in the concepts they prefer to express and the entities they prefer to describe as previously reported in display-rational number notation matching tasks and in math word problem compiling contexts. On the one hand, fractions and percentages are preferentially used to express a relation between two magnitudes, while decimals are preferentially used to represent a magnitude. On the other hand, fractions and decimals tend to be used to describe discrete and continuous entities, respectively. However, it remains unclear whether these reported distinctions can extend to more general linguistic contexts. It also remains unclear which factor, the concept to be expressed (magnitudes vs. relations between magnitudes) or the entity to be described (countable vs. continuous), is more predictive of people’s preferences for rational number notations. To explore these issues, two corpus studies and a number notation preference experiment were administered. The news and conversation corpus studies detected the general pattern of conceptual distinctions across rational number notations as observed in previous studies; the number notation preference experiment found that the concept to be expressed was more predictive of people’s preferences for number notations than the entity to be described. These findings indicate that people’s biased uses of rational numbers are constrained by multiple factors, especially by the type of concepts to be expressed, and more importantly, these biases are not specific to mathematical settings but are generalizable to broader linguistic contexts.

Evolution of Overall Cotton Production and Its Determinants: Implications for Developing Countries Using Pakistan Case

Managing the declining yield of non-food crops has opened new strategic challenges amidst global uncertainties. The COVID-19 scenario has increased awareness of natural lifestyle and eco-friendly products, largely dependent on non-food crop material. This strategic shift requires moving beyond traditional farm practices to improve agricultural production efficiency, and developing countries in particular have shown a consistent loss in their self-sufficiency of industrial crops despite being major exporters of non-food crop materials. However, existing studies analyze production efficiencies of non-food crops from general or theoretical aspects often by virtual estimates from breaking down the multiple factors of crop productivity. This study examined multiple factors of crop production to identify “which crop inputs have been inefficiently used overtime” by tracking efficiency changes and various input issues in overall cotton production from practical aspects, i.e., scaling non-constant returns of those multiple factors would allow for the violation of various situations. Accordingly, a stochastic frontier approach was employed to measure the production frontier and efficiency relationship using time-series data of Pakistan’s cotton production from 1971–2018—a specific non-food crop perspective from a top-ranked cotton-producing country that has recently been shifted towards being a non-exporter of cotton due to low yield. The coefficient of area, seed, and labor indicates the positive relationship with cotton production, while fertilizer, irrigation, electricity, and machinery are statistically negative. This implies that policymakers need priority-based strategies for the judicial use of synthetic fertilizers, irrigation, a subsidy policy, and technology adoption, which could significantly improve the efficiencies of cotton productivity from the same land resources. Being adaptable to other developing economies, the analysis would strategically facilitate designing and developing affordable technology-driven solutions and their customized extensions towards sustainable non-food crop production practices and Agri-Resources efficiencies.

Improving gut function in pigs to prevent dysbiosis and post-weaning diarrhoea

Post-weaning diarrhoea (PWD) is a significant enteric disease causing considerable economic losses for the pig industry. There are multiple factors for why pigs develop diarrhea post-weaning and require treatment with antibiotics. The condition ‘dysbiosis’ can be considered as an ecosystem where bacteria no longer live together in mutual harmony. With regard to development of PWD, we therefore consider this as a process in a simplistic manner, i.e., dysbiosis appears when the commensal no longer control the potential pathogenic bacteria. When the pathogenic bacteria colonize and adhere to the epithelium of the gut, they may induce diarrhea. There are a number of factors by which the gut function can be improved, and prevention of dysbiosis exert a major role herein. The objective is to provide an overview of factors, which may enhance gut function both in terms of a balanced or eubiotic ecosystem, and with regard to the epithelial barrier function.

SousChef System for Personalized Meal Recommendations: A Validation Study

Nutrition is an essential part of our life. A healthy diet can help to prevent several chronic diseases like diabetes, obesity, cancer, and cardiovascular diseases, being influenced by social, cultural, and economic factors. Meal recommender systems are a trend to assist people in finding new recipes to cook and adopt healthier eating habits. However, food choice is complex and driven by multiple factors which need to be reflected in the personalization process of these systems to ensure their adoption. We present SousChef, a meal recommender system that can help to plan multiple meals considering an individual’s food preferences, restrictions, and nutritional needs. Our approach uses recipes rather than individual food items, limiting recommendations to tasteful and culturally acceptable food combinations. Several experiments were performed to evaluate the system from different perspectives: nutritional, food preferences, and restrictions, and the recommendations’ variability. Our results highlight the importance of using extensive and diverse content in recommendations to meet food preferences, restrictions, and nutritional needs of people with different characteristics.

Alcohol Drinking Patterns and Contributing Factors among Medical Students, a Systematic Review

Background:The use of Alcohol has become an important public health concern with a variety of negative consequences, it is important to understand the variables that may be risk factors for this phenomenon. Further, university students represent a group of individuals who have unique drinking patterns and different risk factors and concerns related to problematic drinking than the population in general. Legal substances like alcohol accounts for the vast majority of negative medical, economic, and social impact. Although alcohol use occurs across many age groups, young adults aged 18–24 years show the highest rates of alcohol use and have the greatest percentage of problems drinkers (Kandel & Logan, 1984). Namibia is ranked fifth on the African continent in terms of annual alcohol consumption with the average Namibian consuming 9.62 liters of alcohol per year (WHO 2011). This review addresses problematic drinking and the variables associated with it for medical students. The purpose of this systematic review is to compare the perception and attitude of alcohol consumption among medical students and weigh the factors associated with drinking habits. Methods:A qualitative and quantitative systematic review of article from multiple search engines. Five articles were within the inclusion criteria thus appraised and reviewed for this paper. The common study method used was cross sectional, with varying sample sizes. Commonly, the use of self-assessment questionnaires and objective AUDIT C and CAGE score evaluation were used frequently between these articles. Results:The review showed that there are multiple factors that influence the use of alcohol among medical students. Personal factors such as a new found sense of independence, peer pressure, inability to handle academic stressors. Socio-economic factors include high tolerance of alcohol use in the communities and monthly expenses. It was also noted that the use of alcohol in medical students is higher than the average university student. A highlighted noted is that the use of alcohol is much higher among male than female medical students. Conclusion:Findings suggested that the perceptions of alcohol use is depended on multiple factors majority being academic perceived stress. It is also noted that continuation of these maladaptive coping mechanisms may lead to dysfunction in the future. The findings of systematic review are limited by the number of articles appraised and reliant on the information provided by the authors.

Epidemiology, etiology, and treatment of denture stomatitis

Multiple factors are involved in the pathogenesis of denture stomatitis, which increases the risk of tissue infection and inflammation. These factors include poor oral hygiene, trauma secondary to poorly fitting prostheses, resin porosity, and bacterial plaque accumulation. Our present review discusses the epidemiology, etiology, and treatment of denture stomatitis based on data from current studies in the literature. The prevalence of denture stomatitis is significantly variable among the different studies, as previously discussed. However, the cumulative incidence of denture stomatitis among their participants ranged between 17-77%. These hugely variable rates have been attributed to the nature of data collection, diagnostic criteria, sample size, and patient demographics. Studies also show that the condition is more prevalent among elderly females. However, not many studies have reported this correlation, indicating the need for future studies. Candida albicans infection is the primary parameter in the etiology and pathogenesis of the condition. However, other factors related to the patient (like status of immunological response) and dentures (like hygiene) were also reported. Therefore, the management of denture stomatitis should be based on applying adequate interventions. Besides, using antifungal medications is also necessary to eradicate organism.

Revealing the Activity of Co3Mo3N and Co3Mo3N0.5 as Electrocatalysts for the Hydrogen Evolution Reaction

The hydrogen evolution reaction (HER) from water is governed by electrocatalysts used. Multiple factors such as crystal structure, composition and morphology dictate the final catalytic performance. However, as multicomponent materials...