A conformable fractional finite difference method for modified mathematical modeling of SAR-CoV-2 (COVID-19) disease.

In this research, the ongoing COVID-19 disease by considering the vaccination strategies into mathematical models is discussed. A modified and comprehensive mathematical model that captures the complex relationships between various population compartments, including susceptible (Sα), exposed (Eα), infected (Uα), quarantined (Qα), vaccinated (Vα), and recovered (Rα) individuals. Using conformable derivatives, a system of equations that precisely captures the complex interconnections inside the COVID-19 transmission.

Signet ring cell component predicts the response to neoadjuvant chemoradiotherapy in rectal cancer. Long interim results of a single institution experience.

There are limited studies evaluating the correlation between the presence of signet ring carcinoma and tumor response to neoadjuvant therapy in the rectum. Hereby, we aimed to report for the first time our experience from Upper Egypt through assessing the predictive role of signet ring cell component (SRCC) in the response to preoperative chemoradiotherapy (PCRT) and the impact of histological types (SRCC versus other types) on survival. This retrospective study analysed the medical records of 195 patients with locally advanced rectal cancer treated from 2011, to 2018.

Vaccine hesitancy and acceptance: an examination of predictive factors in COVID-19 vaccination in Saudi Arabia.

Vaccine hesitancy is a global health issue and can be affected by several variables. We explored the predictive factors and causes of vaccine hesitancy among adults in Saudi Arabia. An online survey method with multiple regression analysis was used to identify factors predicting of vaccine hesitancy in 558 adults (46.

Alterations of COX-2, HER-2/neu and E-Cadherin protein expression in the prostatic adenocarcinoma: preliminary findings.

Altered expression of the pro-inflammatory enzyme cyclooxygenase (COX)-2, E-Cadherin cell-cell adhesion protein and Human epidermal growth factor receptor 2 (HER-2/neu, a proto-oncogene) are involved in the pathogenesis of several cancers including the prostatic adenocarcinoma (PRCa). However, to date the results of the previous studies in this neoplasm are controversial, and the relationships among expression of these molecules in benign prostatic hyperplasia (BPH) and PRCa are mostly unknown. We hypothesize that "there are alterations of COX-2, HER-2/neu and E-Cadherin protein expression in PRCa".

The radioprotective effects of Moringa oleifera against mobile phone electromagnetic radiation-induced infertility in rats.

The present study has investigated the effects of mobile phone electromagnetic radiation (EMR) on fertility in rats. The purpose of this study was to explore the capability of polyphenolic-rich Moringa oleifera leaf extract in protecting rat testis against EMR-induced impairments based on evaluation of sperm count, viability, motility, sperm cell morphology, anti-oxidants (SOD & CAT), oxidative stress marker, testis tissue histopathology and PCNA immunohistochemistry. The sample consisted of sixty male Wistar rats which were divided into four equal groups.