Bentonite has been modi ed using H 2 SO 4 at various concentrations to alter Si/Al ratio that is responsible for catalytic pyrolysis of single-use waste polyethylene (SUWP). The XRF analysis con rmed a gradual decrease of Al 2 O 3 content with an increasing concentration of H 2 SO 4 . The highest liquid hydrocarbon yield (87.48%) was obtained at Si/Al ratio of 34.24. To further activate acid-modi ed bentonite, bimetals (Cu/Ni, Fe/Ni, and Co/Ni) impregnation was conducted. The catalytic performance was compared with monometals (Ru, Co, Ni, Cu, and Fe) impregnated bentonite counterparts. The Co, Ni, or Cu impregnated bentonite catalysts (with 86, 83, and 86% yield) outperformed Fe and Ru impregnated bentonite catalysts (with 68% and 79% yield). However, bimetallic (Cu/Ni, Fe/Ni and Co/Ni) catalysts enhanced severe cracking leading to the formation of more gaseous hydrocarbons and thus less amount of liquid (70-80%) is obtained. Incorporation of iron into bentonite or Ni/bentonite increased the amount of 2-Octene, 3,7-dimethyl-, (Z)-compared to acid-treated bentonite and Ni/ bentonite catalysts. Moreover, Fe/Ni/bentonite has also increased the amount of 2-Octene, 2,6-dimethyl-compounds. The BET analysis shows that both surface area and pore diameter increased due to acid treatment resulting in an increase in the percent yield of liquid compared to raw bentonite. The FTIR and GC-MS analysis con rmed that the liquid hydrocarbon consists of linear and branched alkanes and alkenes with some cyclic hydrocarbons.The NMR analysis showed the liquid hydrocarbon is free from the aromatic compounds and polycyclic aromatic hydrocarbons (PAH). Statement Of NoveltyAlthough twenty-rst century modern society is highly dependent on plastic products, we cannot overlook the environmental pollution caused by waste plastics. However, single-use plastic wastes have become a major environmental concern since plastic is not biodegradable. Plastic wastes escape from land ll sites generally end up in drains, rivers, and oceans if not disposed of safely. Plastic waste is a dangerous threat to aquatic life. So we could neither ban using plastics nor cause harm to the environment. A more feasible solution would be converting these plastic wastes into liquid fuels. Modi ed bentonite has been found to be a suitable catalyst to convert these plastic wastes into energy. Wastes generated from singleuse plastic commodities could be converted into liquid hydrocarbon in presence of modi ed bentonite catalysts. The liquid hydrocarbon produced in this manner could be used as fuel while reducing plastic waste and eventually protecting the environment.

Background and aims : It is important to determine the profile of long COVID (LC) symptoms within the scope of rehabilitation in Bangladesh. This study’s objective was to estimate the newly experienced long COVID symptoms needing rehabilitation by determining the prevalence and spectrum of impairments due to LC in Bangladesh. Methods A Cross-sectional household survey of 12,925 COVID-19 patients confirmed by RT-PCR from 24 testing facilities in Bangladesh. LC was diagnosed according to WHO working group definition. COVID-19 Yorkshire Rehabilitation Scale (C19-YRS) was used to determine the symptom responses, symptom severity, new long COVID symptoms, and scope of rehabilitation. Results The population proportion of LC symptoms requiring rehabilitation interventions are 0.22 [95% CI, 0.20–0.24] in Bangladeshi people diagnosed with SARS-CoV-2. Among them, 0.08 [95% CI, 0.07–0.09] had mild, 0.07 [95% CI, 0.06–0.09] had moderate, and 0.05 [95% CI, 0.04–0.06] had severe long COVID symptoms (LCS). There was a significant positive correlation between LCS and functional disabilities (r = 0.889, p < 0.001), while a negative correlation was observed between the severity of symptoms and overall health (r=-0.658, p < 0.001). In comparison to the pre-COVID status, 17 new LCS were observed and the increase in the scope of rehabilitation intervention among LCS ranged between 0.01 [95% CI, 0.001–0.01] and 0.21 [95% CI, 0.19–0.22]. In Bangladesh, 59% (n = 334) of the LC cases are out of reach for any rehabilitation interventions. Conclusion Nearly one-fourth of Bangladeshi Post-COVID-19 have long COVID (LC). Seventeen symptoms (LCS) were observed and more than half of the populations having long COVID are out of reach of any rehabilitation facilities.

Background: A diverse spectrum of long COVID symptoms (LCS) have the scope of physical rehabilitation. Due to limited resources, very little is known about the physiotherapy and rehabilitation interventions for LCS and their clinical application. This study aims to explore the role of physiotherapy and rehabilitation interventions in the management of musculoskeletal, neurological, cognitive, cardiorespiratory, mental health, and functional impairments of LCS. Methods: The study was a systematic scoping review of the literature published between April 2020 and July 2022. Results: 87 articles were extracted followed by a standard process of The Preferred Reporting Items for Systematic reviews and meta-analysis (PRISMA) extension for Scoping reviews (PRISMA-ScR). The included studies had a 3223 LCS population. All types of primary and secondary articles were retrieved except for qualitative studies. The evidence was evaluated by an appraisal scoring tool followed by the guidelines of the “Enhancing the Quality and Transparency of Health Research ( EQUATOR) network”. The included papers had a mean appraisal score of 0.7807 on a 0 to 1 scale (SD 0.08), the minimum score was for study protocols (0.5870), and the maximum score was for Cohort studies (.8977). Sixty seven (67) evidence-based interventions were documented from 17 clinical categories. The most weighted interventions were treating underlying symptoms of long COVID (Adjusted score 1/1), management of fatigue (Adjusted score 0.963/1), aerobic exercise and balance training (Adjusted score 0.951/1), multidisciplinary rehabilitation (Adjusted score 0.926/1), and low resistance training and aerobic exercise (Adjusted score 0.889/1). Conclusion: We recommend Long COVID rehabilitation in a multidisciplinary approach by treating the individual symptoms, especially fatigue. Physiotherapy interventions play a significant role as most of the recommended interventions were exercise, modalities, patient education, respiratory rehabilitation, and telerehabilitation Scoping reviews do not require protocol registration from PROSPERO.

Highly viscous substances, such as feces, produce significant heat when layer deformation occurs. We describe the use of viscous heating sufficient to destroy disease-causing microorganisms and whipworms in feces. Computational fluid dynamics (CFD) was used to evaluate preliminary design and provide initial geometric specifications for a laboratory-scale unit. The laboratory device has a rotating core separated from a fixed shell wall by a defined space. Data were obtained over a range of operating conditions with simulant materials. The CFD model was validated with the experimental results. The temperature observed with the smallest spacing was 190 °C. Alternative geometries are considered for high-volume sludge processing. Potential design modifications include enhancing efficient water evaporation and recovery.

Background: Cervical radiculopathy (CR) is one of the prevalent causes of neck pain and disability. Physiotherapy and pain medications are the common nonoperative management, and in physiotherapy, there are many concepts of assessment and management. This study aims to determine the comparative effectiveness of three specialized physiotherapy approaches or only pain medications for managing CR cases. Methods: A prospective, assessor, and participant-blind, four-arm randomized control trial (RCT) has been planned to conduct on 160 patients with chronic cervical radiculopathy in 4 specialized centers of Dhaka city recruited between July and December 2022. Four groups (n=40) will be treated through structural diagnosis and management concept (SDM), regional approaches (RA), McKenzie mechanical diagnosis and therapy (MDT) concept prescribed by advanced practice physiotherapist (APP), or pain medications prescribed by the specialist physician for 4 weeks. The outcome will be evaluated in baseline, intermediate test (14 days), and post-treatment (28 days) through Brief Pain Inventory (BPI) for pain, Goniometer reading for cervical range of motion (ROM), and Neck disability index (NDI) as the primary outcome. The secondary outcome will be quality of life measured at baseline and post-treatment by the WHO quality of life questionnaire WHOQOL-BREF.  Discussion: The study will compare the efficacy of the three physiotherapy approaches with pain medications when treating chronic cervical radiculopathy. The findings will provide evidence when demining the best conservative management approach for CR. Clinical Trial Registry India: CTRI/2022/03/040922 (08/03/2022)