Mono-cropping agricultural activities and overuses of chemical-based fertilizers result in the deterioration of soil health and considerable economic loss. However, previous studies suggested that organic fertilizers can sustain soil health through improved soil microbial activities. Nevertheless, the effect of poultry compost and poultry fresh manure on P (Phosphatase) and C (β-glycosidase) related enzymes activities, nitrogen mineralization, and fungal biomass in the mono-cropping soil are poorly understood. Though, the efforts were made to reveal how changes in the soil nitrogen mineralization, enzyme activities and fungal biomass influence plant growth. An incubation and pot experiments were carried out to investigate the effect of organic wastes [Poultry compost (PC), Poultry fresh manure (PFM), Chemical fertilizer (CF), and only soil (S)] was used at the quantity of 200 mg N kg -1 . We observed that soil amended with PC have produced more phosphatase and β-glycosidase enzyme activities and nitrogen mineralization (36.96 mg kg -1 ), indicating that it could be contributing to plant growth promotion. The fungal biomass increased after applying poultry compost, it also might be contributing to plant growth promotion. Therefore, poultry compost was a more suitable waste for mono-cropping soil systems than poultry fresh manure in soil enzyme activities, nitrogen mineralization, and fungal biomass. In conclusion, functional organic waste as an additive to conventional fertilization could save chemical fertilizer's contribution and minimize soil deterioration by overuse of chemical fertilizers.

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The use of blockchain technology in the tax system is quite new and has not been studied so far in the context of developing nations. The study explores how blockchain technology can be applied to the indirect tax system of a developing country, specifically for electronic invoices. A sample of seven employees who were from different fields such as the Federal Board of Revenue (FBR), Institute of Charted Accountants of Pakistan (ICAP), private institutions and the commerce department were interviewed. Results revealed that Blockchain technology can be used to distribute safe tax data, such as the Tax invoices serial numbers, which will make submitting the Tax invoices serial numbers more efficient and faster. In addition, the Tax invoices' serial numbers transactions can be tracked and analyzed. government meant must pay attention to the peculiarities of blockchain technology while undertaking a design linked to the implementation of blockchain technology in tax systems.

In this study, the proposed model of acceptance factors of cryptocurrencies was analyzed to recognize user behavioral intention by using; web quality, facilitating conditions, perceived risk, e-WOM, and perceived ease of use with the mediating role of the trust factor. An efficient and effective better arrangement of understanding this unique virtual delusion of the use of cryptocurrencies has become an essential part of the virtual world for each stakeholder. So many deliberations on the regulatory frameworks of cryptocurrencies have taken place among government regulators, financial advisors, tax consultants, politicians, thinkers, economists, and lawmakers, but there is inconclusive evidence on legislation in Pakistan.

Aim: To assess the outcomes of ligation and excision of brachial artery pseudoaneurysm without revascularization in IV drugs users. Place & duration of study: From Jan 2021 to Jan 2022 at the department of Surgery of Doctors Hospital & Medical Centre Lahore. Methodology: A retrospective observational study was conducted at the surgery department of Doctors Hospital & Medical Centre Lahore for 1 year. Intravenous drug abusers, aged between 18-65 years diagnosed with brachial artery pseudoaneurysm were included in the study whereas pseudoaneurysm was caused due to arteriovenous fistula, hemodialysis, and trauma or in patients who had undergone revascularization were excluded from the study. The data were processed using SPSS 20.0. Results: A total of 15 intravenous drug users were enrolled in the study. The mean age of the participants was 33.4±5.4 years, and the mean period of addiction was 1.9±2.5 years. Majority of patients (65%) presented with an affected right arm. The most common presentations were: bleeding pseudoaneurysm (73.3%), oozing pulsatile mass (20%), and infected pulsatile mass (6.6%). Following the intervention, limb salvage was achieved in all patients. Ischemia was reported in none of the patients. Conclusion: The excision and ligation of the pseudoaneurysm can be an effective treatment option for the pseudoaneurysm of a brachial artery caused due to drug addiction. Keywords: The brachial artery, pseudoaneurysm, intravenous drug users, drug addiction