Copper recovery from waste printed circuit boards using pyrite as the bioleaching substrate.

Waste printed circuit boards (WPCBs) can be bioleached for Cu recovery, but lack of substrate for the bioleaching culture. In this study, using pyrite as a bacterial substrate for bioleaching WPCBs and recovering Cu was explored. The results showed that the WPCBs bioleaching using pyrite as the bacterial substrate was feasible. Mechanical crushing was a suitable WPCBs pretreatment method. The optimal WPCBs and pyrite pulp densities were respectively found to be 1.25% (w/v) and 1.0% (w/v), and the suitable nitrogen source ratio ((NH4)2SO4: (NH4)2HPO4) was deemed as 2 g/L: 2 g/L, achieving a Cu2+ leaching efficiency of 95.60 ± 1.57% in 14 d. Copper in the bioleaching solution can be directly recovery via electrodeposition. The Cu recovery efficiency in 60 min was up to 92.19 ± 1.35% under the optimal condition that the initial Cu2+ concentration and pH were respectively set at 7.34 g/L and 2.75, and the current density was set at 200 A/m2. Copper was found as the dominant metal in the cathode deposits, existing in the form of Cu and Cu2O. This work provided a novel approach for bioleaching WPCBs and recovering Cu.

Surface-Functionalized Magnetic Silica-Malachite Tricomposite (Fe-M-Si tricomposite): A Promising Adsorbent for the Removal of Cypermethrin.

This study assessed the efficacy of adsorption for eliminating the agricultural pesticide cypermethrin (CP) from wastewater using various adsorbents: silica, malachite, and magnetite. Magnetic nanocomposites (NCs) (with varying amounts of Fe3O4 0.1, 0.25, 0.5, 1.0, and 1.5 wt/wt %) were synthesized, including Fe3O4 nanoparticles (NPs), bicomposites, and tricomposites, calcined at 300 and 500 °C, and then tested for CP removal. The study was conducted in two phases, with the objective of initially assessing how effectively each individual NP performed and then evaluating how effectively the NCs performed when used for the adsorption of CP. Notably, the Fe3O4-malachite combination exhibited superior CP removal, with the 0.25-Fe-M NC achieving the highest adsorption at 635.4 mg/g. This success was attributed to the large surface area, magnetic properties of Fe3O4, and adsorption capabilities of malachite. The Brunauer-Emmett-Teller (BET) isotherm analysis indicated that the NCs had potential applications in adsorption and separation processes. The scanning electron microscopy and transmission electron microscopy revealed the spherical, irregular shaped morphology of the synthesized NPs and NCs. However, the X-ray diffraction (XRD) pattern of surface functionalized materials such as surface functionalized malachite [Cu2CO3(OH)2] with Fe3O4 and SiO2 may be complicated by the specific functionalization method used and the relative amounts and crystallographic orientations of each component. Therefore, careful interpretation and analysis of the XRD pattern, along with other techniques, are necessary for accurate identification and characterization of the functionalized material. The originality of this study lies in its comprehensive investigation of several adsorbents and NCs for CP removal at neutral pH. The innovation stems from the synergistic action of Fe3O4 and malachite, which results in improved CP removal due to their combined surface properties and magnetic characteristics. The application of magnetic NCs in adsorption and separation, as validated by BET isotherm analysis, highlights the potential breakthrough in addressing pesticide contamination.

Phytoremediation ability and selected genetic transcription in Hydrocotyle umbellata-under cadmium stress.

Cadmium (Cd) is the most toxic element which may cause serious consequences to microbial communities, animals, and plants. The use of green technologies like phytoremediation employs plants with high biomass and metal tolerance to extract toxic metals from their rooting zones. In the present work, Hydrocotyle umbellata was exposed to five Cd concentrations (2, 4, 6, 8, and 10 µmol) in triplicates to judge its phytoextraction ability. Effects of metal exposure on chlorophyll (Chl), bio-concentration factor (BCF), translocation factor (TF), and electrolyte leakage (EL) were analyzed after 10 days of treatment. Metal-responding genes were also observed through transcriptomic analysis. Roots were the primary organs for cadmium accumulation followed by stolon and leaves. There was an increase in EL. Plants showed various symptoms under increasing metal stress namely, chlorosis, browning of the leaf margins, burn-like areas on the leaves, and stunted growth, suggesting a positive relationship between EL, and programmed cell death (PCD). Metal-responsive genes, including glutathione, expansin, and cystatin were equally expressed. The phytoextraction capacity and adaptability of H. umbellata L. against Cd metal stress was also demonstrated by BCF more than 1 and TF less than 1.

The results of the current study demonstrated that Hydrocotyle umbellata is a good choice for environmental cleanup in areas with mild Cd contamination. According to TF and BCF, the plant demonstrated a considerable uptake of Cd. Additionally, H. umbellata's eligibility as a phytoremediation agent for Cd was supported by the transcription of numerous metal-responsive genes, including glutathione, expansin, cystatin, and other genes associated with growth.

Characterization of the microplastic photoaging under the action of typical salt ions of biological nitrogen removal processes.

Microplastics (MPs) are one of the most prevalent and diverse contaminants, and wastewater treatment plants are significant MP aggregators. Controlling the pollution caused by microplastics requires an understanding of how they age. The properties of the MPs photoaging process under the influence of salt ions typical of biological nitrogen elimination processes were disclosed in this work. The aging process of polyvinyl chloride microplastics (PVC-MPs) was greatly slowed down by greater HCO3- and NO2- concentrations, according to a comparison of the carbonyl index changes that occurred during photoaging. The carbonyl index had a negative correlation with the thermal stability of the photo-aged PVC-MPs, and aging accelerated the elimination of chlorine from the water. The samples were aged by UV radiation after 36 h at 40 °C, and the amount of chlorine eliminated was 10.13 times greater than that of the original MPs samples. It was discovered that the leachate concentration of aged MPs dramatically increased with decreasing particle size and was positively connected with the level of aging by comparing the concentration of leachate for two particle sizes (1 mm and 100 m). Photoaging caused MPs to become rougher, which in turn improved the NO3--N, NH4+-N, and NO2--N adsorption by PVC-MPs.

Development and validation of the Post-Pandemic Fear of Viral Disease scale and its relationship with general anxiety disorder: a cross-sectional survey from Pakistan.

BACKGROUND: Given the worldwide reach of COVID-19, media coverage has amplified the psychological and social effects of this pandemic causing a widespread fear. Despite substantial research on the short-term psychological impact of COVID-19, its long-term consequences on mental health remain relatively unexplored. This research aims to develop and validate a Post-Pandemic Fear of Viral Disease (PPFVD) scale and to see its relationship with general anxiety disorder among the Pakistani population. METHODS: A cross-sectional online-based survey was conducted with 457 respondents in August and September 2022. We adopted the modified fear of coronavirus scale (FCV-19 S) consisting of seven items and the Generalized Anxiety Disorder (GAD) questionnaire to measure anxiety disorder. Confirmatory factor analysis was applied using the maximum likelihood estimation method. Scale dimensions and item reliability were tested for their validity and goodness of fit. SPSS and AMOS were used for data management and analyses. RESULTS: All inter-item correlations were found to be significant and ranged between 0.30 and 0.70. The value of Cronbach's alpha was 0.887, indicating good reliability. Corrected item-total correlations ranged between 0.632 and 0.754. Factor loadings ranged from 0.664 to 0.810, indicating a good internal consistency. Overall, these results clearly demonstrate that the one-factor solution model for PPFVD presents a good fit to the data. The composite reliability (CR = 0.747) was also good. CONCLUSIONS: The COVID-19 pandemic has negatively affected the mental health of people globally. This measurement scale can be trusted and used to test the PPFVD in the post-pandemic situation. Prospective research might validate this instrument in newly emerging scenarios and test it with diverse ethnic groups.

The migrant Hazara Shias of Pakistan and their social determinants for PTSD, mental disorders and life satisfaction.

Background: Ensuring safety and wellbeing of all the minority populations of Pakistan is essential for collective national growth. The Pakistani Hazara Shias are a marginalized non-combative migrant population who face targeted violence in Pakistan, and suffer from great challenges which compromise their life satisfaction and mental health. In this study, we aim to identify the determinants of life satisfaction and mental health disorders in Hazara Shias and ascertain which socio-demographic characteristics are associated with post-traumatic stress disorder (PTSD). Methods: We used a cross-sectional quantitative survey, utilizing internationally standardized instruments; with an additional qualitative item. Seven constructs were measured, including household stability; job satisfaction; financial security; community support; life satisfaction; PTSD; and mental health. Factor analysis was performed showing satisfactory Cronbach alpha results. A total of 251 Hazara Shias from Quetta were sampled at community centers through convenience method based on their willingness to participate. Results: Comparison of mean scores shows significantly higher PTSD in women and unemployed participants. Regression results reveal that people who have low community support, especially from national and ethnic community, religious community, and other community groups, had higher risk of mental health disorders. Structural equation modeling identified that four study variables contribute to greater life satisfaction, including: household satisfaction (ß = 0.25, p < 0.001); community satisfaction (ß = 0.26, p < 0.001); financial security (ß = 0.11, p < 0.05); and job satisfaction (ß = 0.13, p < 0.05). Qualitative findings revealed three broad areas which create barriers to life satisfaction, including: fears of assault and discrimination; employment and education problems; and financial and food security issues. Conclusions: The Hazara Shias need immediate assistance from state and society to improve safety, life opportunities, and mental health. Interventions for poverty alleviation, mental health, and fair education and employment opportunities need to be planned in partnership with the primary security issue.

In Vivo and In Silico Assessment of the Cardioprotective Effect of Thymus linearis Extract against Ischemic Myocardial Injury.

Myocardial infarction is irreversible cardiac tissue necrosis due to the blockage of one of the arteries. It leads to an insufficient supply of oxygen and nutrients, creating muscular damage in the affected regions. In the present study, aqueous methanolic extract of Thymus linearis was prepared to evaluate its activity against ischemic stress due to free radical production. GC-MS analysis was performed to evaluate the phytochemicals present in the plant extract. A chemical database of 30 compounds was virtually screened against NF-κB, COX2, and MCL, where γ-cadinene, ß-bisabolene, and ß-caryophyllene were found to be the best interacting ligands. To systematically assess cardioprotective activity against ischemia, isoproterenol and doxorubicin were used to induce cardiotoxicity in rats. The prepared extract of T. linearis (100 mg/kg) was given daily to animals for 21 days before injecting isoproterenol (85 mg/kg of animal weight) subcutaneously in two doses on the 20th and 21st days. In the case of doxorubicin, cardiotoxicity was induced in rats by a single injection (15 mg/kg) on the seventh day, and the extract was given to animals for 10 consecutive days. Animals' blood samples were used to monitor cardiac, liver, and other marker enzymes, including LDH, CPK, and AST. Superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) were also assayed in blood plasma to determine the degree of oxidative stress. H&E staining was performed to evaluate cardioprotection by plant extract, showing significant preventive effects in reducing cardiac injury induced by isoproterenol and doxorubicin.

Removal of Antibiotic Resistance Genes, Class 1 Integrase Gene and Escherichia coli Indicator Gene in a Microalgae-Based Wastewater Treatment System.

Microalgae-based wastewater treatment systems (AWWTS) have recently shown promise in the mitigation of antibiotic resistance genes (ARGs) from municipal wastewater (MWW). However, due to the large number of ARGs that exist in MWW, the use of indirect conventional water quality parameters to monitor ARGs reduction in wastewater would make the process less burdensome and economically affordable. In order to establish a robust relationship between the ARGs and water quality parameters, the current study employed different microalgae strains in monoculture (CM2, KL10) and multi-species combinations (CK and WW) for the MWW treatment under outdoor environmental conditions. The studied genes were quantified in the MWW influents and effluents using real-time PCR. All the cultures substantially improved the physicochemical qualities of the MWW. Out of the 14 genes analyzed in this study, tetO, tetW, tetX and ermB were decreased beyond detection within the first 4 days of treatment in all the cultures. Other genes, including blaCTX, sul1, cmlA, aadA, int1 and uidA were also decreased beyond a 2 log reduction value (LRV). The mobile genetic element, int1, correlated positively with most of the ARGs, especially sul1 (r ≤ 0.99, p < 0.01) and aadA (r ≤ 0.97, p < 0.01). Similarly, the Escherichia coli indicator gene, uidA, correlated positively with the studied genes, especially with aadA, blaCTX, blaTEM and cmlA (r ≤ 0.99 for each, p < 0.01). Some of the studied genes also correlated positively with total dissolved solids (TDS) (r ≤ 0.98, p < 0.01), and/or negatively with total suspended solids (TSS) (r ≤ −0.98, p < 0.01) and pH (r ≤ −0.98, p < 0.01). Among the tested cultures, both monocultures, i.e., KL10 and CM2 were found to be more consistent in gene suppression than their multi-species counterparts. The findings revealed water quality parameters such as TDS, TSS and E. coli as reliable proxies for ARGs mitigation in AWWTS and further highlight the superiority of monocultures over multi-species cultures in terms of gene suppression from the MWW stream.

Narrative synthesis systematic review of Pakistani women's health outcomes from primary care interventions.

OBJECTIVE: Women living in Pakistan have complex health problems including infectious and non-communicable diseases, accident and injuries, and mental health problems. While a majority of these women rely on primary healthcare services for all of their healthcare needs, there has to date been no overview of the extent of their effectiveness. The objective of this review was to (1) synthesise the available evidence regarding the effectiveness of primary care based interventions aimed at improving women's mental and physical health and (2) identify the factors that promote effectiveness for women's health outcomes. METHODS: Five academic databases were searched, including PubMed, BMC Medicine, Medline, CINAHL and the Cochrane Library. A search was also made of the grey literature. The quality of included studies was assessed using a standardised critical appraisal tool, and the findings summarised using a narrative synthesis. RESULTS: In total, 18 studies were included in the review. Eight involved evaluations of counselling interventions, three health education and awareness interventions, two social and psychosocial interventions, and five were evaluations of combination interventions. Twelve of the included studies were randomised controlled trials. Of these 14 reported significant outcomes, and 4 further interventions showed partially favourable results. However, interventions mostly targeted women's mental or reproductive health. CONCLUSIONS: While the evidence is limited in terms of quality and what has been evaluated, a number of interventions appear to be effective in improving outcomes for women. The three key approaches include the adoption of an active door-to-door and group-based approach; utilisation of community peers who can deliver care cost-effectively and who are more accepted in the community; and the integration of financial vouchers to support uptake in poor populations. PROSPERO REGISTRATION NUMBER: CRD42020203472.

Recent advances in biodecolorization and biodegradation of environmental threatening textile finishing dyes.

Organic nature of dyes and their commercially made products are widely utilized in many industries including paper, cosmetics, pharmaceuticals, photography, petroleum as well as in textile manufacturing. The textile industry being the top most consumer of a large variety of dyes during various unit processes operation generates substantial amount of wastewater; hence, nominated as "Major Polluter of Potable Water". The direct discharge of such effluents into environment poses serious threats to the functioning of biotic communities of natural ecosystems. The detection of these synthetic dyes is considered as relatively easy, however, it is extremely difficult to completely eliminate them from wastewater and freshwater ecosystems. Aromatic chemical structure seems to be the main reason behind low biodegradability of these dyes. Currently, various physiochemical and biological methods are employed for their remediation. Among them, microbial degradation has attracted greater attention due to its sustainability, high efficiency, cost effectiveness, and eco-friendly nature. The current review presents recent advances in biodegradation of industrial dyes towards a sustainable and tangible technological innovative solutions as an alternative to existing conventional physicochemical treatment processes.

Role of positive mental health in reducing fears related to COVID-19 and general anxiety disorder in Khyber Pakhtunkhwa, Pakistan.

BACKGROUND: The outbreak of the novel coronavirus disease (COVID-19) has posed multiple challenges to healthcare systems. Evidence suggests that mental well-being is badly affected due to compliance with preventative measures in containing the COVID-19 pandemic. This study aims to explore the role of positive mental health (subjective sense of wellbeing) to cope with fears related to COVID-19 and general anxiety disorder in the Pashtun community in Pakistan. METHODS: A cross-sectional survey was conducted among 501 respondents from Khyber Pakhtunkhwa participating in an online-based study. We performed correlational analysis, hierarchical linear regression and structural equational modeling (SEM) to analyze the role of mental health in reducing fears and general anxiety disorder. RESULTS: The results of the SEM show that positive mental health has direct effects in reducing the fear related to COVID-19 (ß = - 0.244, p < 0.001) and general anxiety (ß = - 0.210, p < 0.001). Fears of COVID-19 has a direct effect on increasing general anxiety (ß = 0.480). In addition, positive mental health also has an indirect effect (ß = - 0.117, p < 0.001) on general anxiety (R2 = 0.32, p < 0.001) through reducing fear of coronavirus. CONCLUSION: Based on these findings, there is a need to develop community health policies emphasizing on promotive and preventive mental health strategies for people practicing social/physical distancing.

Infection preparedness of community health workers: implications for maternal and neonatal health services in Pakistan.

AIM: This study aimed to (i) identify community health workers' (CHWs) perceived satisfaction for maternal and neonatal health services, with respect to (1) socio-demographic characteristics; (2) coronavirus preparedness; (3) coronavirus responsiveness; and (4) employee satisfaction and (ii) investigate the interplay among study variables to identify the role of direct effects and mediation. BACKGROUND: Women CHWs are salient providers for maternal and neonatal services at the primary level, especially in conservative regions. Service delivery is a valuable indicator for mother and newborn wellbeing. There is need for empirical evidence to understand how CHWs may be supported in delivering maternal and neonatal health services during pandemics. METHODS: Bivariate regression was used to identify the lower odds for CHWs' perceived satisfaction for maternal and neonatal health services. In addition, structural equation modeling was used to investigate if coronavirus responsiveness and employee satisfaction as mediating variables influence the relationship between coronavirus preparedness and maternal and neonatal health services. Data were collected telephonically from 350 CHWs. The sample was representative of 35 districts of Punjab, which is the most populated province in the country. FINDINGS: We found thirty predictors with respect to coronavirus preparedness, coronavirus responsiveness and employee satisfaction which contribute to lower odds of satisfaction for maternal and neonatal health services. We also found that coronavirus preparedness has a direct effect on maternal and neonatal health service satisfaction (ß = .242, P < .001) and an indirect effect on maternal health satisfaction (ß = .242, P < .001) via the mediation of employee satisfaction. We conclude with four critical recommendations to support CHWs in delivering optimal services, comprising of education and training, operational support, public acceptance, and employee support and benefits. The findings are important for the planning of primary health services and governance support for CHWs and poor women clients in Pakistan and other developing countries.

Bromocriptine therapy: Review of mechanism of action, safety and tolerability.

Bromocriptine is a sympatholytic dopamine D2 receptor agonist with remarkable bioactivities. It has been used clinically as a prescription drug for more than 30 years to treat hyperprolactinemia associated conditions, Parkinson's disease, acromegaly, prolactinomas and other pituitary hormone dependent adenomas and recently, diabetes mellitus as well as various other disorders. Long-term treatment with bromocriptine has minimal or no harmful effects on renal, hepatic, cardiac or hematologic functions. This review article was planned to study the hypothetical and proposed mechanism of action as well as provide a brief discussion about its safety issues and tolerability. Bromocriptine represents an attractive option with high efficacy and safety profile for hyperprolactinemia-associated conditions, acromegaly, parkinsonism, type 2 diabetes mellitus and various other diseases in a variety of dosage forms for best possible beneficial effects. It appeared to be an effective and safe addition to the pharmacopoeia of drugs for the treatment of a vast variety of diseases as monotherapy or in combination with other drugs.

Novel microalgae strains from selected lower Himalayan aquatic habitats as potential sources of green products.

Microalgal biomass provides a renewable source of biofuels and other green products. However, in order to realize economically viable microalgal biorefinery, strategic identification and utilization of suitable microalgal feedstock is fundamental. Here, a multi-step suboptimal screening strategy was used to target promising microalgae strains from selected freshwaters of the study area. The resulting strains were found to be affiliated to seven closely-related genera of the family Scenedesmaceae, as revealed by both morphologic and molecular characterization. Following initial screening under upper psychrophilic to optimum mesophilic (irregular temperature of 14.1 to 35.9°C) cultivation conditions, superior strains were chosen for further studies. Further cultivation of the selected strains under moderate to extreme mesophilic cultivation conditions (irregular temperature of 25.7 to 42.2°C), yielded up to 74.12 mgL-1day-1, 19.96 mgL-1day-1, 48.56%, 3.34 µg/mL and 1.20 µg/mL, for biomass productivity, lipid productivity, carbohydrate content, pigments content and carotenoids content respectively. These performances were deemed promising compared with some previous, optimum conditions-based reports. Interestingly, the fatty acids profile and the high carotenoids content of the studied strains revealed possible tolerance to the stress caused by the changing suboptimal cultivation conditions. Overall, strains AY1, CM6, LY2 and KL10 were exceptional and may present sustainable, promising feedstock for utilization in large-scale generation of green products, including biodiesel, bioethanol, pigments and dietary supplements. The findings of this study, which exposed promising, eurythermal strains, would expand the current knowledge on the search for promising microalgae strains capable of performing under the largely uncontrolled large-scale cultivation settings.

WhatsApp-Delivered Intervention for Continued Learning for Nurses in Pakistan During the COVID-19 Pandemic: Results of a Randomized-Controlled Trial.

The COVID-19 pandemic has necessitated support for continued learning in frontline practitioners through online digital mediums that are convenient and fast to maintain physical distancing. Nurses are already neglected professionals for support in training for infection control, leadership, and communication in Pakistan and other developing countries. For that reason, we aimed to deliver a WhatsApp-based intervention for continued learning in nurses who are currently working in both private and public sector. A 12-week intervention was delivered to 208 nurses (102 in the control group and 106 in the intervention group) who had been employed in the clinical setting during data collection. The analysis reveals that nurses in the intervention group show significantly better results for learning in "infection prevention and control" and "leadership and communication." Results of a content analysis based on participant's feedback also confirm that the WhatsApp-based intervention is a valuable tool for education. This study highlights the effectiveness of online-based digital interventions as a convenient training tool for awareness and management of infectious diseases, leadership, and communication during COVID-19 and beyond. Furthermore, this study emphasizes that group interventions with other healthcare practitioners and the role of on-going longer WhatsApp-based interventions can become integral tools to support continued learning and patient safety practices.

Marble waste site suitability assessment using the GIS-based AHP model.

Site suitability with regards to environmental protection, public concerns, and the legitimate prerequisite is a basic issue that has been tended to in this study. By and large, marble waste is being unloaded on accessible open spaces or released in water to the close by waterways in the territory, Mohmand marble zone (Shabqadar), Khyber Pakhtunkhwa, Pakistan. Suitability assessment for marble waste collection and disposal was carried out through the integrated approach of analytical hierarchy process (AHP) and geographic information system (GIS) to limit the ecological dangers, public, and government concerns related to marble waste. The available land use was ordered into three main land use classes followed by six sub-classes including water bodies and agriculture (environmental), settlement and social site (social), and marble units and roads (economic). These sub-classes in the investigation region were organized through pairwise correlation and weighted sum analysis, AHP procedure. The AHP results were interpreted through GIS tools of digitization, buffering, and overlay in ArcMap, ArcGIS. The integrated AHP and GIS outcomes were consolidated to get the optimum results of the study, marble waste collection, and disposal options. It was concluded that priority should be given to water bodies followed by agricultural land while protecting the available land use classes from marble waste hazards. The percent priority values calculated are 32.33%, 30.50%, 12.16%, 10.66%, 8.50%, and 6% for water bodies, agricultural land, settlements, marble processing units, roads, and cultural sites respectively. The sequence of priority of the land use values are waterbodies > agriculture > settlement > marble industries > road > cultural site. The proposed integrated model is helpful in site suitability for waste management by the authorities and decision-makers associated with waste management.

Women's Status and its Association With Home Delivery: A Cross-Sectional Study Conducted in Khyber-Pakhtunkhwa, Pakistan.

INTRODUCTION: Home delivery is a predominant driver of maternal and neonatal deaths in developing countries. Despite the efforts of international organizations in Pakistan, home childbirth is common in the remote and rural areas of Khyber Pakhtunkhwa province. We studied women's position within the household (socio-economic dependence, maternal health decision making, and social mobility) and its association with the preference for home delivery. METHODS: We conducted a cross-sectional household survey among 503 ever-married women of reproductive age (15-49 years), who have had childbirth in the last twelve months or were pregnant (more than 6 months) at the time of the interview. A two-stage cluster sampling technique has been used for recruitment. Descriptive and bivariate analyses have been conducted. A binary logistic regression model was calculated to present odds ratios and corresponding 95% confidence intervals for factor associated with home delivery. RESULTS: An inferior status of women, restrictions in mobility and limited power in decision making related to household purchases, maternal health care, and outdoor socializing are contributing factors of home delivery. Furthermore, women having faced intimate partner violence were much more likely to deliver at home (OR = 2.66, 95% CI: 1.83.3.86, p < 0.001). DISCUSSION: We concluded that women are in a position with minimal authority in decision making to access and deliver the baby in any health facility. We recommend that the government should ensure the availability of health facilities in nearby locations to increase institutional deliveries in the study area.

The Psychometric Validation of FCV19S in Urdu and Socio-Demographic Association with Fear in the People of the Khyber Pakhtunkhwa (KPK) Province in Pakistan.

This study rests on two important considerations: the rapid increase of COVID-19 cases in Pakistan and also the marginalization of the people of the KPK province, which would make them more vulnerable in fearing COVID-19. We aim to translate and validate FCV-19S into the Urdu language and to identify the socio-demographic associations with fear in the people of the KPK. Using an online Google survey, we were able to sample 501 respondents from the KPK. The Cronbach alpha α value for the Urdu FCV-19S displayed good internal reliability at .846. The unidimensional structure of the FCV-19S in Urdu was confirmed, and all of the items were found to be statistically significant, ranging from 0.59 to 0.80. The results of the confirmatory factor analysis show that fit indices are all within an acceptable limit. The FCV-19S was also significantly and positively correlated with preventive behavior (r = .328, p < .01) and general anxiety (r = .458, p < .01). The results of independent sample t tests show that women (t = 4.086, p < 0.001), married people (t = - 2.709, p < .001), and unemployed people (t = - 3.199, p < 0.001) of the KPK experienced great fear of COVID-19. We conclude that that the Urdu version of the FCV-19S is a valid and reliable tool and must be used by healthcare practitioners, government bodies, and researchers, to identify the prevalence of fear and to subsequently plan improved social and health policies to reduce anxiety in the public.

Dataset on social media use during COVID-19: Associations with self-efficacy, perceived threat, and preventive behavior.

The ongoing COVID-19 pandemic is the most significant public health crisis of this century, and the world has been facing multiple challenges for the last two years, including a high death toll, the imposition of various forms of lockdown and the unavailability of vaccines. Globally, people have faced fearful situations and sought information from social media in order to understand the severity of the situation as well as to protect themselves and others. In comparison to traditional media (electronic and print), social media provides quick and easy access to information, making its impact timely and powerful. The cross-sectional data reflects social media use and its associations with self-efficacy, perceived threat, and preventive behavior in the time of COVID-19 among the people of Pakistan. An online-based cross-sectional survey has been conducted to obtain data from the respondents. These respondents were reached out by sharing a hyperlink through various social media platforms. A total number of 310 respondents furnished their responses. The survey was completed in April 2020. This data may be of great interest to researchers, policymakers, research organizations, and social and mental health practitioners who wish to explore other dimensions of mental health issues caused by the ongoing COVID-19 pandemic.

Effect of substrate ratios on the simultaneous carbon, nitrogen, sulfur and phosphorous conversions in microbial fuel cells.

The columbic efficiency, removal efficiency and voltage production of seven different combinations of carbon (acetic acid, albumin and sucrose) with nutrients (C:N, C:P, C:S, C:N:S, C:P:S, C:N:P and C: N:S:P) were investigated at three different ratios (20:1, 15:1 and 10:1). The effects of various pH values were also explored for these combinations of carbon, and sulfur compounds (pH 6-8). The highest columbic efficiency (75.8%), COD removal efficiency (86%) and voltage (667 mV) were recorded when the acetic acid was used in the MFC and the lowest columbic efficiency (12.8%), removal efficiency (37.6%) and voltage (145 mV) were observed in case of albumin. A marked increase in columbic efficiency, removal efficiency and voltage production were seen with the rise in the pH value from 6 to 8. The lowest columbic efficiency, removal efficiency and voltage production were seen at pH 6 and highest at pH 8. At each investigated pH, the highest removal efficiency, columbic efficiency, and voltage were found at substrate ratio of 20:1 while lower at 10:1. At all pH values, the carbon to nutrient ratios seemed to have followed a similar trend i.e., the COD removal efficiency, columbic efficiency and voltage generation was found in the order C:N > C:N:S > C:N:S:P > C:N:P > C:S > C:P:S > C:P. In all cases, nitrogen showed a higher removal as compared to phosphorous and sulfur.