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AbstractA theoretical study is carried out to explore the heat and mass transfer features in the flow of two types nanofluid, i.e., Al2O3/H2O micropolar nanofluid and (Al2O3+Ag)/H2O hybrid nanofluid, adjacent to a solid sphere. Furthermore, simultaneous effects of linear thermal radiation and chemical reaction are also explored on the heat and mass transfer characteristics. In mathematical formulation basic conservation laws are utilized along with the Soret and Doufer effects as a coupling agents in the energy and mass concentration equations. The normalized variables are used to transform the governing system of non-linear partial differential equations into the system of dimensionless partial differential equations. Stream function reduces the number of dependent variables and the resulting system is solved numerically by Keller box method. Several plots are presented to explore the impact of involved parameters on the different profiles and engineering interest quantities for both types of fluids. The temperature profile and Nusselt number are large in magnitude for hybrid nanofluid as compared to Al2O3/water based nanofluid. The heat transfer and mass transfer rates rises with thermal radiation parameter and chemical reaction parameter, respectively. [ABSTRACT FROM AUTHOR]

The development of a successful oncology pharmacy system includes competency training, cost-efficient procurement, proper storage, preparation and administration of chemotherapy, and appropriate waste disposal. Low-middle-income countries such as Pakistan face several challenges within the realm of oncology pharmacy such as the unavailability of training programmes, resources and financial support, and inconsistencies in the safe handling of cytotoxic drugs. The Indus Hospital and Health Network (IHHN) is among the pioneers of oncology pharmacy practices in Pakistan, with a well-established Oncology Pharmacy Team and chemotherapy preparation in accordance with the United States Pharmacopeia 797 and 800 safety guidelines. The My Child Matters Grant was awarded by the Sanofi Espoir Foundation to the Department of Paediatric Hematology and Oncology at IHHN for holistic improvement in childhood cancer care through teaching, training and capacity building. Partnerships were formed with five public-sector paediatric oncology units nationwide. Initiatives were taken to improve oncology pharmacy practices including teaching and training courses, in-person assessment visits, and mentorship and liaison efforts. Despite prevailing challenges, promising improvements were noted at each centre. However, Pakistan needs to establish a national plan for childhood cancer with the creation of regional organisations for the training and monitoring of oncology pharmacists. Centralisation of pharmacy operations within hospitals is essential to maintain the availability, storage, preparation and administration standards of chemotherapy., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Produced water (PW) from oil and gas exploration adversely affects aquatic life and living organisms, necessitating treatment before discharge to meet effluent permissible limits. This study first used activated sludge to pretreat PW in a sequential batch reactor (SBR). The pretreated PW then entered a 13 L photobioreactor (PBR) containing Scenedesmus obliquus microalgae culture. Initially, 10% of the PW mixed with 90% microalgae culture in the PBR. After the exponential growth of the microalgae, an additional 25% of PW was added to the PBR without extra nutrients. This study reported the growth performance of microalgae in the PBR as well as the reduction in effluent's total organic carbon (TOC), total dissolved solids (TDS), electrical conductivity (EC), and heavy metals content. The results demonstrated removal efficiencies of 64% for TOC, 49.8% for TDS, and 49.1% for EC. The results also showed reductions in barium, iron, and manganese in the effluent by 95, 76, and 52%, respectively., (© 2024. The Author(s).)

Objectives: Emergency Departments (EDs) play a major role in managing acute and chronic illnesses, especially in low-to-middle-income countries like Pakistan, which lacks effective primary healthcare. This study reports the epidemiology and clinical characteristics of patients presenting over a two-year period at the Indus Hospital and Health Network (IHHN) adult ED in Karachi, Pakistan., Methods: This is a retrospective observational study conducted through chart review of 264,859 patients, aged 16 years and above, who presented to the IHHN ED, Korangi Campus, from January 2019 to December 2020 after obtaining approval from IHHN IRB., Results: Men were found to be the predominant presenting gender, with a slight rise in the number of women in 2020. The most frequent age group in 2019 was 15-25 (27.7%), whereas it was 25-35 years in 2020 (24.1%), with a decline in total number of elderly visits seen in comparison to previous years. The most frequently seen disposition was 'referral to clinic' in 2019 (48.4%) and 'discharged' in 2020 (39%). Out of all dispositions, maximum Length of stay (LOS) was seen in patients who left against medical advice in both years. Patient acuity showed the highest number of P3 (moderately ill) patients in both years. Infectious diseases accounted for greater than 10% of patients in both years (17.2% and16.5%), followed by gastrointestinal complaints (15.7% and 11.3%), genitourinary complaints (14.9% and 7.9%), and trauma (11.9% and 12.4%)., Conclusion: Knowledge of epidemiology and clinical characteristics of patients can help facilitate timely planning of staff deployment and allocation of resources to avoid overcrowding, improve patient outcomes, and increase patient satisfaction through timely management., Competing Interests: Conflict of interest: None., (Copyright: © Pakistan Journal of Medical Sciences.)