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Purpose: This paper aims to focus on the basic principle of WO3 gas sensors to achieve high gas-sensing performance with good stability and repeatability. Metal oxide-based gas sensors are widely used for monitoring toxic gas leakages in the environment, industries and households. For better livelihood and a healthy environment, it is extremely helpful to have sensors with higher accuracy and improved sensing features. Design/methodology/approach: In the present review, the authors focus on recent synthesis methods of WO3-based gas sensors to enhance sensing features towards toxic gases. Findings: This work has proved that the synthesis method led to provide different morphologies of nanostructured WO3-based material in turn to improve gas sensing performance along with its sensing mechanism. Originality/value: In this work, the authors reviewed challenges and possibilities associated with the nanostructured WO3-based gas sensors to trace toxic gases such as ammonia, H2S and NO2 for future research. [ABSTRACT FROM AUTHOR]

Background and Aims: Simulation is one of the important learning tools when it comes to skill acquisition and as a supplemental tool for training in high stake situations like COVID-19. The aim of this study is to meet the global requirements of knowledge on ventilatory management, prepare and to evaluate the effectiveness of the teaching module for non-anesthesiology trainees on COVID-19 patients. Methods: Quasi experimental cross sectional pilot study was conducted with a sample of twenty-six trainees. A teaching module was prepared and validated which consisted of lectures, audio-video sessions, demonstrations with hands-on training, debriefing, analytical-phase and reflection. Pre and Post evaluations from student t-test and direct observation of procedural skills (DOPS) were used for knowledge and skill assessment respectively and feedback obtained from Likert's score. Results: Pre- and Post-tests had a mean score of 7.42 ± 2.12 and 14.92 ± 2.9 respectively (P value 0.00001). DOPS included 16 point score, in which 23 trainees (88.4%) met the expectations and above expectations as per training objectives. A five-point Likert's score feedback revealed satisfactory and highly satisfactory scores of 100% (ABG), 96.1% (mechanical ventilation), and 84.6% (ventilation in COVID-19 patients). Overall satisfaction for the workshop among respondents was 100 per cent. Confidences of handling scores were 84.5% (interpreting ABG), 65.3% (maneuvering mechanical ventilation), and 96.15% (intubation in COVID-19 patients). Conclusion: A planned teaching module in ventilation management helps to train non-anaesthesiologists more effectively as a part of COVID-19 preparedness. Simulation with debriefing based training to the medical fraternity is the best alternative in the present pandemic and it will also ensure the safety of health care professionals. [ABSTRACT FROM AUTHOR]

Recycling has been the fascinating topic among the researchers for all times. The present study shows the recycling of steel plant's solid wastes as blast furnace flue dust and sludge towards agglomeration and their use in the production of sinter. These wastes consist of metal oxides and coke fines as a valuable material with some alkali oxides. Using these wastes as it is in the form of fines exacerbate the further processing. Pellets of these wastes are prepared with three types of binders as molasses, dextrin and bentonite. The result reveals that properties as compressive strength, shatter strength, are better in the case of bentonite binder having the productivity of the disc pelletizer machine as 75. After that, these macro pellets used for sintering with iron ore and other ingredients in pot type, down draft laboratory grade sintering machine, which shows very high productivity and good mechanical properties of the sinter as well. The microstructural analysis reveals the presence of re-oxidized hematite and a little bit of a magnetite phase with some slag phases, which confirmed later by XRD analysis. Results also show the decrease in coke rate, i.e. coke consumption to produce sinter and at the same time, this process is highly eco-friendly.

Human Papillomavirus (HPV)-35 accounts for up 10% of cervical cancers in Sub-Saharan Africa. We herein assessed the genetic diversity of HPV35 in HIV-negative women from Chad (identified as #CHAD) and HIV-infected men having sex with men (MSM) in the Central African Republic (CAR), identified as #CAR. Ten HPV35 DNA from self-collected genital secretions (n = 5) and anal margin samples (n = 5) obtained from women and MSM, respectively, were sequenced using the ABI PRISM® BigDye Sequencing technology. All but one HPV35 strains belonged to the A2 sublineage, and only #CAR5 belonged to A1. HPV35 from #CAR had higher L1 variability compared to #CHAD (mean number of mutations: 16 versus 6). L1 of #CAR5 showed a significant variability (2.29%), suggesting a possible intra-type divergence from HPV35H. Three (BC, DE, and EF) out of the 5 capsid loops domains remained totally conserved, while FG- and HI- loops of #CAR exhibited amino acid variations. #CAR5 also showed the highest LCR variability with a 16bp insertion at binding sites of the YY1. HPV35 from #CHAD exhibited the highest variability in E2 gene (P<0.05). E6 and E7 oncoproteins remained well conserved. There is a relative maintenance of a well conserved HPV35 A2 sublineage within heterosexual women in Chad and MSM with HIV in the Central African Republic., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Mboumba Bouassa et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Lipomas are common benign neoplastic mesenchymal tumours arising from adipose tissue anywhere in the body. Giant intra-thoracic lipoma extending across the anterior mediastinum into bilateral pleural spaces causing compression of the underlying lung resulting in respiratory embarrassment is rarely seen and reported. Giant lipomas of thorax require surgical excision as they continue to grow and cause compressive symptoms.

Enterovirus infections are life-threatening viral infections which occur mainly among children and are possible causes of viral outbreak. Until now, treatment and management of infections caused by members of the genus Enterovirus largely depended on supportive care, and no antiviral medications are currently approved for the treatment of most of these infections. The urgency of discovering new therapeutic options for the treatment of enterovirus infection is increasing. In the present study, we identified that trans -2-hexenoic acid (THA), a natural product from a dietary source, possesses antiviral activity against coxsackievirus B (CVB) and enterovirus A71 (EV-A71) in a dose-dependent manner. We found that THA possesses antiviral activity at 50% effective concentrations (EC 50 ) of 2.9 μM and 3.21 μM against CVB3 and EV-A71 infections, respectively. The time of addition assay revealed that THA inhibits both CVB3 and EV-A71 replication at the entry stage of infection. Additional results from this study further suggest that THA inhibits viral replication by blocking viral entry. Given that THA has received approval as a food additive, treatment of enterovirus infections with THA might be a safe therapeutic option or could pave the way for semisynthetic manufacturing of more antiviral drugs in the future.

Coxsackievirus group B (CVB) is a member of the genus Enterovirus in the family Picornaviridae . CVB infection has been implicated as a major etiologic agent of viral myocarditis, dilated cardiomyopathy, meningitis, and pancreatitis among children and young adults. Until date, no antiviral agent has been licensed for the treatment of Coxsackievirus infection. In an effort to identify antiviral agents against diseases caused by the CVB, we found that ethyl 3-hydroxyhexanoate (EHX), a volatile compound present in fruits and food additives, is a potent antiviral compound. In this study, we demonstrated that EHX treatment significantly inhibits CVB replication both in vivo and in vitro . Furthermore, EHX possesses antiviral activity at 50% effective concentration (EC 50 ) of 1.2 μM and 50% cytotoxicity (CC 50 ) of 25.6 μM, yielding a selective index (SI) value as high as 20.8. Insights into the mechanism of antiviral activity of EHX showed that it acts at the step of viral RNA replication. Since EHX has received approval as food additives, treatment of CVB-related infections with EHX might be a safe therapeutic option and may be a promising strategy for the development of semi-synthetic antiviral drugs for viral diseases., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Olasunkanmi, Mageto, Avala Ntsigouaye, Yi, Fei, Chen, Chen, Xu, Lin, Zhao, Wang and Zhong.)

Present-day people from England and Wales have more ancestry derived from early European farmers (EEF) than did people of the Early Bronze Age 1 . To understand this, here we generated genome-wide data from 793 individuals, increasing data from the Middle to the Late Bronze Age and Iron Age in Britain by 12-fold, and western and central Europe by 3.5-fold. Between 1000 and 875 BC, EEF ancestry increased in southern Britain (England and Wales) but not northern Britain (Scotland) due to incorporation of migrants who arrived at this time and over previous centuries, and who were genetically most similar to ancient individuals from France. These migrants contributed about half the ancestry of people of England and Wales from the Iron Age, thereby creating a plausible vector for the spread of early Celtic languages into Britain. These patterns are part of a broader trend of EEF ancestry becoming more similar across central and western Europe in the Middle to the Late Bronze Age, coincident with archaeological evidence of intensified cultural exchange 2-6 . There was comparatively less gene flow from continental Europe during the Iron Age, and the independent genetic trajectory in Britain is also reflected in the rise of the allele conferring lactase persistence to approximately 50% by this time compared to approximately 7% in central Europe where it rose rapidly in frequency only a millennium later. This suggests that dairy products were used in qualitatively different ways in Britain and in central Europe over this period., (© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)

Objective: To analyze the epidemiological, anatomoclinical, surgical and evolutionary aspects of the urological complications of gynecological surgery., Material and Methods: It was about a retrospective survey, concerning 81 patients hospitalized in the department of urology of the university hospital, Brazzaville from 2000 to 2008 for urological complications of the gynecological surgery. The epidemiological, diagnostic, surgical and evolutionary parameters have been analyzed., Results: The urological complication of the gynecological surgery has been recovered in 3% of patients hospitalized in urology. The middle age was 37±14.52 years (17 and 74 years). The median was about 36 years. The middle delay of diagnosis was 15 days (0 and 350 days). The revealing clinical signs were: the oligoanuria (n=12), the urinary incontinence (n=57), the lumbar pain (n=9) and the cyclic hematuria (n=2). The surgical interventions in reason were: the Caesarean (n=50), the hysterectomy for fibroma (n=26), the myomectomy (n=3) and the hysterectomy for cancer (n=2). Anatomical lesion were 55 (67.9%) vesicovaginal fistulas, 12 (14.8%) ureteral ligatures, eight (10%) uretero-vaginal fistulas, three (3.7%) vesico-uterine fistulas, two (2.4%) wounds ureteral and one (1.2%) vaginal vesico-fistulas and uretero-vaginal fistulas. The treatment consisted in one termino-terminal ureterorraphia, 20 uretero-vesical reimplantation, 57 cures of vesico-vaginal fistulas and one nephrectomy. The recovery was obtained at 96% of the ureteral lesions and 90% of the vesico-vaginal fistulas., Conclusion: The lesions of the ureteral and the bladder were often met during the gynecological surgery. The treatment requires knowledge of the anatomy of pelvis., (Copyright © 2011 Elsevier Masson SAS. All rights reserved.)

It was previously shown that sodium nitroprusside (NP) stimulates food (FI) and water (WI) intakes when injected intraperitoneally (i.p.) in male rats deprived for 1-h of both food and water during day time. The present work shows that: 1) intramuscular NP increased only water intake; 2) when NP was i.p. injected simultaneously without 1-h deprivation it slightly reduced both intakes in the first 30 min but stimulated significantly FI between 30 and 60 min, and 3) it increased significantly FI even in absence of available water, while WI in absence of food was practically not affected. In conclusion NP effect on FI does originate mainly in the splanchnic area, it requires a latency of about 30 min, and stimulation of FI by NP triggers an increase in WI and not the other way around.

The objective of this study was to know if there is a correlation in contents progesterone receptors (RPg) in biopsies from patients pre and postmenopausal, with normal cervix, Low-Grade squamous intraepithelial lesions (LGESIL) and High-Grade (HGSIL), and invasive cancer. Sixty three patients with abnormal cytology; colposcopy was carried out and two biopsies were taken from the suspicious lesion, they were sent for histopathological study, and for RPg; both studies were correlated later. Both pre and postmenopausal with LGSIL, the RPg the mean values were 16.81 fmol/mg, protein, and values negative, respectively. With regard to HGSIL, the RPg content, the mean values was 20.31 fmol/mg, protein in pre-menopausal patients, whereas it was 3.8 fmol/mg, protein in postmenopausal patients. It was seen that RPg concentration is higher in invasive cancer than to LGSIL and HGSIL patients in pre and postmenopausal. It is concluded that this study on quantification to RPg receptor level measurement may well be to select poor prognostic groups of patients for inclusion in the management of squamous intraepithelial lesions and invasive cancer.