Advanced oxidation processes (AOPs) are technologies to degrade organic pollutants to carbon dioxide and water with an eco-friendly approach to form reactive hydroxyl radicals. Photocatalysis is an AOP whereby TiO2 is the most adopted photocatalyst. However, TiO2 features a wide (3.2 eV) and fast electron-hole recombination. When Mn is embedded in TiO2, it shifts the absorption wavelength towards the visible region of light, making it active for natural light applications. We present a systematic study of how the textural and optical properties of Mn-doped TiO2 vary with ultrasound applied during synthesis. We varied ultrasound power, pulse length, and power density (by changing the amount of solvent). Ultrasound produced mesoporous MnOx-TiO2 powders with a higher surface area (101–158 m2 g−1), pore volume (0-13–0.29 cc g−1), and smaller particle size (4–10 µm) than those obtained with a conventional sol-gel method (48–129 m2 g−1, 0.14–0.21 cc g−1, 181 µm, respectively). Surprisingly, the catalysts obtained with ultrasound had a content of brookite that was at least 28%, while the traditional sol-gel samples only had 7%. The samples synthesized with ultrasound had a wider distribution of the band-gaps, in the 1.6–1.91 eV range, while traditional ones ranged from 1.72 eV to 1.8 eV. We tested activity in the sonophotocatalytic degradation of two model pollutants (amoxicillin and acetaminophen). The catalysts synthesized with ultrasound were up to 50% more active than the traditional samples.

Background: Myocarditis is now one of the most fatal and morbid complications of COVID-19. Many scientists have recently concentrated on this problem. Objectives: This study assessed the effects of Remdesivir (RMS) and Tocilizumab (TCZ) in COVID-19 myocarditis. Design: Observational, cohort study. Methods: Patients with COVID-19 myocarditis were enrolled in the study and divided into three groups, TCZ-treated, RMS-treated, and Dexamethasone-treated patients. After 7 days of treatment, patients were reassessed for improvement. Results: TCZ significantly improved patients’ ejection fraction in 7 days, but it had limited efficacy. RMS improved inflammatory characteristics of the disease, but RMS-treated patients showed exacerbated cardiac function over 7 days, and the mortality rate with RMS was higher than TCZ. TCZ protects the heart by decreasing the miR-21 expression rate. Conclusion: Using Tocilizumab in early diagnosed COVID-19 myocarditis patients can save their cardiac function after hospitalization and decrease the mortality rate. miR-21 level determines the outcome and responsiveness of COVID-19 myocarditis to treatment.

Objective Human behavior is a function of one's existence and interaction between body and mind. Disability is the inability to perform all or part of the normal activities of individual or social life due to congenital defects, or physical or mental faculties being subject to accidents. Mental disability rehabilitation approach consists of three categories of services: mental, emotional, and physical. Physical or motor disabilities are divided into four categories: physical, visceral, sensory and aging. The concept of disability is omnipresent in every society and culture. Its form may vary between temporary or permanent, total or partial, and fixed or variable. Side effects of disability on individuals are different according to their attitude. Their views about themselves, disability, and familial and social attitudes leads to various complications in the lives of persons with disabilities. It has been proved that endangering the physical health provides psychological reactions in people. Many physical disabilities are associated with mental health problems. Mental health problems in people with health problems are very common. For example, chronic diseases, create physical conditions and limiting long-term negative consequences for the disabled person. Quasi-physical as well as psychological problems have serious implications with respect to diseases. Psychosomatic diseases, for instance, cause different kinds of disabilities. In addition to the development of the machines, the marriage and many other issues may be associated with increased physical disability and mental illness. The importance of physical disabilities due to mental health problems that are associated with health problems treated, including psychiatric problems that disabled people face; social is the low and high social phobia. The aim of this study was to determine the effectiveness of acceptance and commitment group therapy based on social adjustment and social phobia among physically-disabled person. Methods & Materials The study population consisted of all individuals belonging to a disability welfare organization in Qom. The sample included 30 males (15 in the control group and 15 in the experimental group) who were selected by random sampling method. In this quasi-experimental study, the participants in the experimental group underwent a 2-month intervention of eight 120-minute sessions. The research design was pretest-posttest with a control group. Data were collected from the questionnaires of Conover, social adjustment, Weisman, and social phobia. Analysis of covariance (ANCOVA) model was used for analyzing. Results Our results showed that the acceptance and commitment group therapy increased satisfaction as far as social adjustment was concerned (P<0.001). Significant effect on the subscales of fear (P<0.001), avoidance (P<0.001), physiology (P<0.001), and the total social phobia score (P< 0. 001) was also observed. Conclusion The acceptance and commitment group therapy increased social adjustment and decreased social phobia among ...

The complexation of Co(II) with 4-(2-pyridylazo)resorcinol (PAR) was studied by spectroscopy and voltammetry. In addition, an adsorptive stripping voltammetric method was developed for the determination of ultra trace levels of Co(II) using a hanging mercury drop electrode. The method is based on accumulation of Co(II) on a mercury electrode using PAR as the complexing agent. The effects of instrumental and chemical parameters on the sensitivity of the method were investigated. The detection limit of the method is 0.003 ng/mL. Most foreign species do not interfere with the determination. The high sensitivity and selectivity of this method were demonstrated by determination of cobalt in blood and water samples.

Introduction: COVID-19 is a respiratory disease caused by infection with severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2). Thrombotic complications appear to be of particular importance in patients with COVID-19. This study aimed to investigate Changes in the level of Antiphospholipid antibodies (Anticardiolipin and Anti-β2-glycoprotein-I) and thromboembolic indices in COVID-19 patients during 3 weeks. Methods: This cross-sectional study was performed on adults with Covid-19 hospitalized at Al-Zahra Hospital in Isfahan. The case group includes the patients admitted to the internal ward or ICU who despite receiving prophylactic or anticoagulant doses suffer from thrombotic complications and the control group includes COVID-19 patients without thromboembolic events. The sample size of 120 people was considered. Anticardiolipin and anti-β2-glycoprotein-I antibodies, coagulation profiles including Fibrinogen, PTT, PT Troponin, ESR, CRP, and D-dimer were examined. After collection, the data were entered into spss24 software and analyzed. Results: The results showed that there was no statistically significant difference in the changes of anticardiolipin and anti-beta-2 glycoprotein in IgM and IgG as well as in the changes of ESR, CRP, PTT, PT, and fibrinogen in the two groups ( P > 0.05). Conclusions: Our study showed that there was no statistically significant relationship between anti-phospholipid antibodies (anticardiolipin and anti-beta-2 glycoprotein) and thromboembolic events. Therefore anticardiolipin and anti-beta-2 glycoprotein is probably the puzzles causing thrombosis in COVID-19 patients, and other inflammatory responses should be examined among the cases.