Dunlaprouse2223

Both image processing and machine learning approaches are utilized to find vulnerabilities. On evaluation, the proposed method attains an F1 score of 2.3% higher than CNN for different filter sizes, 4% higher than CNN-LSTM when the learning rate is set to 0.008, and 6% higher than CNN when dropout is 0.5.

This work is suggested to boost consumers' confidence in order to address the issues they encounter when buying secondhand goods. Both image processing and machine learning approaches are utilized to find vulnerabilities. On evaluation, the proposed method attains an F1 score of 2.3% higher than CNN for different filter sizes, 4% higher than CNN-LSTM when the learning rate is set to 0.008, and 6% higher than CNN when dropout is 0.5.This study aims to investigate the development and the differences in student misconceptions in science based on gender and grade level, and to evaluate the developed two-tier multiple-choice diagnostic test in confirming the test's validity and reliability. A sample of 856 participants from 10th-12th graders and prospective science teachers were collected. The two-tier multiple-choice diagnostic test with 32 items covering biology, chemistry, and physics was administered to evaluate students' science misconceptions at the senior high school and university levels. The results met validity and reliability criteria using confirmatory factor analysis and Rasch parameters. The single-factor model has CFI = .973, RMSEA = .006, CI (.001, .014) and SRMR = .017 and the three-factor model has CFI = 0.939, RMSEA = .010, CI (.01, .017) and SRMR = .017. Based on the Rasch parameter, the infit and outfit MNSQ values achieve the acceptable fit (0.96 to 1) with good item reliability (.99) and person reliability (.80). All items have positive PTMA. Student misconceptions had significant differences in terms of grade and gender. We confirmed that prospective science teachers have higher misconceptions than 11th and 12th graders and slightly higher ones than 10th graders. Boys have a better conceptual understanding than girls based on the mean of correct answers. The multiple linear regression with the stepwise method confirmed that gender significantly predicted student misconceptions of science concepts, with 9% of variance explained. This study provided evidence that students and prospective teachers experience various misconceptions about science concepts.

To investigate the burden of untreated dental caries in 204 countries and territories over 30 years.

Data of untreated dental caries from 1990 to 2019, including the incidence, prevalence, and years lived with disability, were extracted from the Global Burden of Disease 2019 database. Estimated annual percentage changes were calculated to assess the changes in the age-standardized incidence, prevalence, and years lived with disability rates.

Globally, in 2019, there were 3.09 billion (95% uncertainty interval [UI] 2.76-3.39 billion) new cases of untreated dental caries in permanent teeth (48.00% increase), 2.03 billion (1.77-2.33) prevalent cases (46.07% increase), and 2.00 million (0.93-3.88) YLDs (45.64% increase), all since 1990. From 1990 to 2019, the age-standardized incidence rate (ASIR) of untreated dental caries in permanent teeth showed an upward trend (estimated annual percentage changes [EAPC] = 0.01), but age-standardized prevalence rate (ASPR) (EAPC = -0.13) and age-standardized YLD rate (Arategies, at both administrative and academic levels, based on dynamic changes, are needed.Cereal crops account for 88.52% of grain production in Ethiopia and 87.6% in the Guji Zone. Despite its size, its contribution to household welfare has yet not been studied. Besides, there are limited studies with rigorous methodological approaches regarding the effects of commercializing cereal production on household welfare. This paper is set out to measure the commercialization of cereal crops and examines its welfare effects measured as food and nonfood consumption expenditure. The study was based on cross-sectional data collected in 2019 from 288 sample farm households selected through a multistage sampling technique. A Kruskal-Wallis test and post hoc Dunn's test were employed to examine the welfare effects of commercialization. The study shows that about 48.33% of cereal production was sold to the market, suggesting a moderate level of commercialization. Moreover, the finding indicates that the welfare effects differed across various levels of commercialization at p less then 0.01, p less then 0.0market linkage to achieve a better commercial status, thus, improve their welfare.Unserviceable vehicles imported from developed countries are often dismantled in automobile junk markets and the useable parts sold. This generates hazardous waste oils which contain contaminants detrimental to the environment and human health. TP-0184 In this study, we quantified the potential human health risks associated with oral and dermal exposure to heavy metals and PAHs in well-water samples from a major automobile junk market in Ibadan, SW-Nigeria. Twenty-four to thirty-one water samples from seven wells within the market were analyzed for seven metals and eight PAHs using standard methods. Hazard-Quotient (HQ), Hazard-Index (HI), and Carcinogenic-Risk (CR) were computed for children and adults based on the USEPA Human-Health Risk Assessment model. Iron, Lead, Arsenic, Cadmium, Benzo(a)Anthracene, and Benzo(a)Pyrene exceeded regulatory limits. In children and adults, lead (1.14-3.71), cadmium (1.26-2.60) and arsenic (1.03-4.33) had HQingestion values exceeding 1. In addition, cadmium also posed risks via theion measures are therefore necessary to protect the exposed population.Organotypic brain slice cultures are a useful tool to study neurological disease as they provide a 3-dimensional system which more closely recapitulates the in vivo cytoarchitectural complexity than standard 2-dimensional in vitro cell cultures. Building on our previously developed rat brain slice culture protocol, we have extended our findings to develop ex vivo excitotoxic lesion models by treatment of rat sagittal organotypic slices with AMPA or quinolinic acid (QA). We show that treatment of rat sagittal cortico-striatal organotypic slices with 8μM AMPA or 50μM QA causes striatal cell loss with a reduction in neuronal nuclei (NeuN)+ cells and an increase in ethidium homodimer-1 (EthD-1)+ dead cells compared to untreated slices. More specifically, following treatment with QA, we observed a reduction in medium spiny neuron DARPP32 + cells in the striatum and cortex of slices. Treatment of the slices with AMPA does not alter glial fibrillary acidic protein (GFAP) expression, while we observed an acute increase in GFAP expression 1-week post-QA exposure both in the cortex and striatum of slices. This recapitulates the excitotoxic and striatal degeneration observed in rat AMPA and QA lesion models in vivo. Our slice culture platform provides an advance over other systems with the ability to generate acute AMPA- and QA-induced striatal excitotoxicity in sagittal cortico-striatal slices which can be cultured long-term for at least 4 weeks. Our ex vivo organotypic slice culture system provides a long-term cellular platform to model neuronal excitotoxicity, with QA specifically modelling Huntington's disease. This will allow for mechanistic studies of excitotoxicity and neuroprotection, as well as the development and testing of novel therapeutic strategies with reduced cost and ease of manipulation prior to in vivo experimentation.

The influence of energy drinks on dental materials are relatively under addressed. Our aim was to investigate the effect of energy drinks on dental materials used intraorally in young individuals. Commonly used preventive, restorative, and orthodontic materials were tested

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The effect of two commercially available energy drinks (HELL, BURN) was investigated on different dental materials machined, anodized Titanium (grade 5 Ti6Al4V) and composites (Grandio Seal, VOCO; Filtek Z250, 3M ESPE; Estelite SQ, TOKUYAMA). The roughness (Ra) and morphological changes were examined by atomic force microscopy (AFM) and scanning electron microscopy (SEM).

AFM and SEM revealed significant differences in the Ra and morphology of the samples. AFM results for the machined and anodized titanium samples showed that the two energy drinks modified the surface roughness differently; BURN changed the roughness of machined samples significantly, while anodized discs were not altered significantly by the two energy drinks. Inr, uniform particle arrangement, energy drinks are less able to influence the roughness, while for samples where the surface is rich in aggregates, the material erodes the surface much more easily.Despite being determined by global market prices, the majority of Thai farmers have never become innovative price setters. Not many Thai farmers considered a pricing approach that would maximize the value of their agricultural products. To this end, this study provides empirical evidence regarding the impact of marketing-based variables on pricing. This study aims to identify marketing-based determinants involved in innovative, dynamic price settings for value-added agricultural products. We consider two approaches to innovative pricing - segmented (tiered) pricing and peak-load pricing - to see if there is a possibility for such pricing. A sample of 840 agribusiness farmers was collected from different regions of Thailand. Using multigroup structural invariance analysis, the sample was grouped into four types of farmers rice, sugarcane, maize, and cassava, to see if there were any differences between them in each of the proposed pricing propensities. Our study finds that cassava farmers tend to pay significant attention to market focus, customer and product differentiation, brand orientation, and segment-based mass customization. Other groups of farmers, like rice and sugarcane, tend to set segmented (tiered) pricing as a result of brand orientation and mass customization. As for peak load pricing, market demand and seasonality are significant factors that can be found among four crops. No matter how prices are set on the global market, this study suggests that agribusiness farmers should think about marketing-related factors to stand out from their competitors.

Pregnancy is a critical period of transition incorporating important normal physical, emotional, hormonal, and physiological status changes. These changes might affect the quality of life (QOL) of pregnant woman. This study aimed to examine the levels of quality of life and perceived social support of Syrian refugees' pregnant women in Al-Zaatari Refugee Camp in Jordan.

A cross-sectional survey design was used. A sample of 319 pregnant women was recruited from two maternal health clinics at Al-Zaatari Refugee Camp. Data were collected from June to August 2020 using the Arabic version of World Health Organization Quality of Life (WHOQOL-BREF), the Multidimensional Perceived Social Support (MSPSS) questionnaires, and two sheets were used to assess sociodemographic and obstetric variables.

The study reveals that Syrian refugees' pregnant women had good satisfaction with their overall QOL and health status and social support. A significant relationship was found between the socioeconomic index and QOL. Also, age, being in the third trimester, and parity correlated negatively with QOL.