44 results match your criteria: "Shaheed Zulfikar Ali Bhutto Institute of Science and Technology (SZABIST)[Affiliation]"

Smart fish farming faces critical challenges in achieving comprehensive automation, real-time decision-making, and adaptability to diverse environmental conditions and multi-species aquaculture. This study presents a novel Internet of Things (IoT)-driven intelligent decision-making system that dynamically monitors and optimizes water quality parameters to enhance fish survival rates across various regions and species setups. The system integrates advanced sensors connected to an ESP32 microcontroller, continuously monitoring key water parameters such as pH, temperature, and turbidity which are increasingly affected by climate-induced variability.

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  • * A study involved analyzing 74 cerebrospinal fluid (CSF) samples from meningitis patients in Karachi using various testing methods, including biochemical and microbial analyses.
  • * While traditional analyses didn't provide a clear diagnosis, specific testing techniques like PCR revealed the presence of the amoeba in one of the CSF samples, confirming its role in PAM.
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Context: Glioblastoma (GBM), well known as grade 4 tumors due to its progressive malignant features such as vascular proliferation and necrosis, is the most aggressive form of primary brain tumor found in adults. Mutations and amplifications in the vascular endothelial growth factor receptor (VEGFR) contribute to almost 25% of GBM tumors. And thus, VEGFR has been declared the primary target in glioblastoma therapeutic strategies.

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  • Nanotechnology has applications across many sciences but traditional methods for producing nanoparticles (NPs) can be toxic and environmentally harmful, while also leading to antibiotic resistance in bacteria.
  • This study focused on the biogenic synthesis of silver-zinc nanoparticles using Moringa oleifera and green synthesis of zinc oxide nanoparticles from Aloe vera and papaya, highlighting an eco-friendly approach.
  • The antimicrobial effectiveness of these NPs was tested on resistant bacteria, using advanced techniques for characterization, which showcase their cost-effectiveness and potential for large-scale industrial use.
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  • Streptococcus pneumoniae is a significant cause of meningitis in underdeveloped countries with low vaccination rates, and this study analyzed 83 suspected meningitis patients in Karachi to identify and sequence the bacteria.
  • Out of 83 samples, 33 showed signs of potential meningitis, with 20 confirmed cases of bacterial meningitis, resulting in five isolates of S. pneumoniae being identified, one of which exhibited resistance to multiple antibiotics.
  • The whole-genome sequencing of the resistant strain revealed critical genetic factors for antibiotic resistance and indicated a close relation to strains from Hungary and the USA, contributing to our understanding of the prevalence and characteristics of S. pneumoniae in Karachi.
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Knowledge is the most critical source for sustainable competitive advantage in an organization. Organizations must therefore focus on creating a culture for Knowledge Sharing. However, politics or political work environment is an inevitable outcome where people interact and communicate on a daily basis.

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In this paper, we examine the Moderating Role of Governance on the Relationships between social inclusion (SI), Information and communication technology infrastructure (ICT), and financial inclusion (FI) in 46 countries representing a global sample span from 2010 to 2020. We collect the data from the IMF's financial access survey and construct a multidimensional FI index. Based on the FI index, we divide the sample into two sub-samples (med-high level and low-level FI countries).

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This paper examines the impact of the Monetary Policy Uncertainty (MPU) of the United States on Asian developed, emerging, and frontier stock markets using a Quantile-on-Quantile (QQR) approach by using monthly data from January 2006 to December 2022 of 14 Asian countries. The study finds that US monetary policy significantly negatively influences Asian stock markets. This is primarily due to the widespread use of the US dollar as a universal currency, resulting in substantial ripple effects on other nations through trade relationships.

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Colorectal cancer (CRC) poses a significant global health challenge with high morbidity and mortality rates. This study investigates the role of LY6G6D, a member of the LY6/uPAR superfamily, in CRC. Employing a bioinformatic approach, we analyzed LY6G6D expression across different cancer types, compared it with known oncogenes in CRC, explored the involved genomic alterations, and assessed associated clinicopathological characteristics.

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Periodontitis is an inflammatory periodontal disease defined by the progressive loss of tissues surrounding the tooth. Ampicillin is an antibiotic for managing and treating specific bacterial infections, including periodontitis. Periodontal pockets occur due to periodontal disease progression and act as a natural reservoir that is easily reachable for the insertion of a delivery system, and the amount of drug to be released has a major role in the efficiency of treatment of the disease.

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Global production of sugarcane bagasse (SB) by sugar industries exceeds more than 100 tons per annum. SB is rich in lignin and polysaccharide and hence can serve as a low-cost energy and carbon source for the growth of industrially important microorganism. However, various other applications of SB have also been investigated.

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Food borne pathogens are one of the most common yet concerning cause of illnesses around the globe. These microbes invade the body via food items, through numerous mediums of contamination and it is impossible to completely eradicate these organisms from food. Extensive research has been made regarding their treatment.

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In developing countries, child health and restraining under-five child mortality are one of the fundamental concerns. UNICEF adopted sustainable development goal 3 (SDG3) to reduce the under-five child mortality rate globally to 25 deaths per 1,000 live births. The under-five mortality rate is 69 deaths per 1,000 live child-births in Pakistan as reported by the Demographic and Health Survey (2018).

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Halophytes are the native inhabitants of saline environment. Their biomass can be considered as a potential substrate for the production of microbial enzymes. This study was intended at feasible utilization of a halophytic biomass, Cressia cretica, for pectinase production using a halo- and thermo-tolerant bacterium, Bacillus vallismortis MH 10.

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  • Amphotericin B (AMPH), an anti-fungal drug, has been identified in this study for its potential use as an antibacterial agent, showcasing an innovative repurposing of the drug.
  • The study highlights AMPH's mode of action through its interactions with Penicillin Binding Protein 2a (PBP 2a), essential for bacterial cell wall synthesis, indicating significant effects on the protein's structure and dynamics.
  • Molecular dynamics simulations and analysis reveal that AMPH binding alters the conformational integrity of PBP 2a, enhancing its antibacterial properties, thus supporting the drug's potential in treating bacterial infections.
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Colloidal gold based immunochromatographic detection of Mycoplasmopsis synoviae infection and its prevalence in avian species of Karachi, Pakistan.

Res Vet Sci

August 2023

Department of Microbiology, University of Karachi, Karachi 75270, Pakistan; Department of Biosciences, Salim Habib University, Karachi 74900, Pakistan. Electronic address:

Avian mycoplasmosis is an infection that commonly prevails in birds, particularly in poultry chickens. Among mycoplasmosis causing organisms, Mycoplasmopsis synoviae is a predominant and lethal pathogen to the aves. Considering the increased incidence of infections by M.

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This study aims to extend the Fama-French three-factor model by including human capital as a fourth factor. For this purpose, we have collected data from 164 non-financial firms from July 2010 to June 2020. To evaluate the validity and applicability of our augmented human capital-based four-factor model, we apply the two-pass time series regression proposed by Fama-Macbeth (1973).

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Genetic and enzymatic potential of Neobacillus sedimentimangrovi has not been assembled to date. Here, we report a high-quality genome assembly of thermophilic bacterium Neobacillus sedimentimangrovi UE25 using Illumina Hi-seq 2500. The strain was isolated from a crocodile pond Manghopir, Karachi, Pakistan.

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Unlabelled: Using negative to low-correlated assets to manage short-term portfolio risk is not uncommon among investors, although the long-term benefits of this strategy remain unclear. This study examines the long-term benefits of the correlation strategy for portfolios based on the stock market in Asia, Central and Eastern Europe, the Middle East and North Africa, and Latin America from 2000 to 2016. Our strategy is as follows.

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Synthesis of methylcellulose-polyvinyl alcohol composite, biopolymer film and thermostable enzymes from sugarcane bagasse.

Int J Biol Macromol

April 2023

Dr Zafar H Zaidi Center for Proteomic (formerly National Center for Proteomics), University of Karachi, Karachi 75270, Pakistan.

Agro-industrial wastes and by-products are the natural and abundant resources of biomaterials to obtain various value-added items such as biopolymer films, bio-composites and enzymes. This study presents a way to fractionate and to convert an agro-industrial residue, sugarcane bagasse (SB), into useful materials with potential applications. Initially cellulose was extracted from SB which was then converted into methylcellulose.

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Hepatitis is one of the common liver diseases, imposing a heavy health burden worldwide. Acute hepatitis may develop into chronic hepatitis, progressing to cirrhosis and hepatocellular carcinoma. In the present study, the expression of miRNAs was quantified by real-time PCR, such as miRNA-182, 122, 21, 150, 199, and 222.

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Immobilization of microbial cells for the production of industrially important enzymes has been reported to offer the advantages of recyclability, higher yields and cost effectiveness. The search for an appropriate matrix that is affordable and easy to prepare is a significant topic in microbial biotechnology. Here, an abundant type of agro-industrial waste-corncob-was utilized as an immobilization matrix for the production of xylanase from an indigenous yeast strain, MK-157.

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Bacteriocins are gaining immense importance in therapeutics since they show significant antibacterial potential. This study reports the bacteriocin KAE01 from along with its characterization, molecular modeling, and antibacterial potency, by targeting the matrix protein of . The bacteriocin was purified by using ammonium sulfate precipitation and fast protein liquid chromatography (FPLC), and its molecular weight was estimated as 55 kDa by means of SDS-PAGE.

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Background: The SARS-CoV-2 pandemic originated in Wuhan, China in December 2019 and spread rapidly worldwide. The virus gets entry into target cells via angiotensin-converting enzyme 2 (ACE2) receptors and its gene is highly polymorphic.

Introduction: The variations in SARS-CoV-2 susceptibility and severity can be explained on a genetic level by studying the polymorphism in ACE2 receptor polymorphism.

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Characterization of a novel end product tolerant and thermostable cellulase from Neobacillus sedimentimangrovi UE25.

Enzyme Microb Technol

January 2023

Department of Chemistry, Turabah University College, Taif University, P.O. Box 11099, 12, Taif 21944, Saudi Arabia.

Recent advancements in biorefinery processes necessitate search for cost effective and thermostable cellulases. This study was designed to characterize the cellulase obtained from a thermophilic bacterium, Neobacillus sedimentimangrovi UE25. A combined pretreatment of NaOH and methyltrioctylammonium chloride was given to sugarcane bagasse (SB) for lignin removal and the pretreated SB was utilized as a carbon source for the cellulase production.

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