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Results for “"Koushik Roy"”

16+ results

Endophytic Fusarium solani: A rich source of cytotoxic and antimicrobial napthaquinone and aza-anthraquinone derivatives

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Nasima Khan, Farhana Afroz, Mst. Nadira Begum, Satyajit Roy Rony et al.

Journal: Toxicology ReportsYear: 2018Citations: 92

This study reports the chemical investigation and bioactivity of the secondary metabolites produced by the endophytic fungus Fusarium solani isolated from Cassia alata Linn. growing in Bangladesh. This plant was collected from conservation forest in Bangladesh and belongs to the Caesalpiniaceae fami...

Health SciencesMedicinePharmacologyOpen Access
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Enterotoxigenic <i>Escherichia coli</i> Elicits Immune Responses to Multiple Surface Proteins

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Koushik Roy, Scott R. Bartels, Firdausi Qadri, James M. Fleckenstein

Journal: Infection and ImmunityYear: 2010Citations: 68

Enterotoxigenic Escherichia coli (ETEC) causes considerable morbidity and mortality due to diarrheal illness in developing countries, particularly in young children. Despite the global importance of these heterogeneous pathogens, a broadly protective vaccine is not yet available. While much is known...

Life SciencesBiochemistry, Genetics and Molecular BiologyEndocrinologyOpen Access
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A prevalence of parasites in black bengal goats in Chittagong, Bangladesh

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Mohammad Mahmudul Hassan, M. A. Hoque, M. A. Islam, S. A. Khan et al.

Journal: International Journal of Livestock ProductionYear: 2011Citations: 61

An investigation was carried out to measure the prevalence of ecto- and endopatasites in semi-scavenging black bengal goat (Capra hircus) at Pahartali Thana under Chittagong district, Bangladesh during the period of February to May/2006. The overall prevalence of gastrointestinal helminths in goat w...

Health SciencesVeterinarySmall AnimalsOpen Access
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Diseasome and comorbidities complexities of SARS-CoV-2 infection with common malignant diseases

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Md. Shahriare Satu, Md. Imran Khan, Md Rezanur Rahman, Koushik Chandra Howlader et al.

Journal: Briefings in BioinformaticsYear: 2021Citations: 45

With the increasing number of immunoinflammatory complexities, cancer patients have a higher risk of serious disease outcomes and mortality with SARS-CoV-2 infection which is still not clear. In this study, we aimed to identify infectome, diseasome and comorbidities between COVID-19 and cancer via c...

Health SciencesMedicineOncologyOpen Access
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Contribution of the Highly Conserved EaeH Surface Protein to Enterotoxigenic Escherichia coli Pathogenesis

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Alaullah Sheikh, Qingwei Luo, Koushik Roy, Salwa Shabaan et al.

Journal: Infection and ImmunityYear: 2014Citations: 41

Enterotoxigenic Escherichia coli (ETEC) strains are among the most common causes of diarrheal illness worldwide. These pathogens disproportionately afflict children in developing countries, where they cause substantial morbidity and are responsible for hundreds of thousands of deaths each year. Alth...

Life SciencesBiochemistry, Genetics and Molecular BiologyEndocrinologyOpen Access
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Directed Evaluation of Enterotoxigenic Escherichia coli Autotransporter Proteins as Putative Vaccine Candidates

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Jessica Harris, Koushik Roy, Virginia Woo-Rasberry, David J. Hamilton et al.

Journal: PLoS neglected tropical diseasesYear: 2011Citations: 36

BACKGROUND: Enterotoxigenic Escherichia coli (ETEC) is a major diarrheal pathogen in developing countries, where it accounts for millions of infections and hundreds of thousands of deaths annually. While vaccine development to prevent diarrheal illness due to ETEC is feasible, extensive effort is ne...

Life SciencesBiochemistry, Genetics and Molecular BiologyEndocrinologyOpen Access
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Microplastics in the soil–water–food nexus: Inclusive insight into global research findings

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Sourav Garai, Chandrima Bhattacharjee, Sukamal Sarkar, Debojyoti Moulick et al.

Journal: The Science of The Total EnvironmentYear: 2024Citations: 32

Nuisance imposed by biotic and abiotic stressors on diverse agroecosystems remains an area of focus for the scientific fraternity. However, emerging contaminants such as microplastics (MP) have imposed additional dimension (alone or in combinations with other stressors) in agroecosystems and keep es...

Physical SciencesEnvironmental SciencePollution
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An Adaptive Feature Selection Algorithm for Student Performance Prediction

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Koushik Roy, Dewan Md. Farid

Journal: IEEE AccessYear: 2024Citations: 32

Educational Data Mining (EDM) is used to ameliorate the teaching and learning process by analyzing and classifying data that can be applied to predict the students’ academic performance, and students’ dropout rate, as well as instructors’ performance. The prediction of student performance is complic...

Physical SciencesComputer ScienceComputer Science ApplicationsOpen Access
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Bi-FPNFAS: Bi-Directional Feature Pyramid Network for Pixel-Wise Face Anti-Spoofing by Leveraging Fourier Spectra

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Koushik Roy, Md Hasan, Labiba Kanij Rupty, Md. Sourave Hossain et al.

Journal: SensorsYear: 2021Citations: 27

The emergence of biometric-based authentication using modern sensors on electronic devices has led to an escalated use of face recognition technologies. While these technologies may seem intriguing, they are accompanied by numerous implicit drawbacks. In this paper, we look into the problem of face ...

Physical SciencesComputer ScienceSignal ProcessingOpen Access
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Classifying Pepper Disease based on Transfer Learning: A Deep Learning Approach

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Imdadul Haque, Md. Ashiqul Islam, Koushik Roy, Md. Mizanur Rahaman et al.

Journal: 2022 International Conference on Applied Artificial Intelligence and Computing (ICAAIC)Year: 2022Citations: 24

Pepper is cultivated all over the world and many farmers&#x0027; subsistence depends on these crops. But unfortunately, farmers who are involved in the cultivation of pepper, have to fall on a huge loss because of the low production of pepper caused by several diseases of pepper. If the diseases can...

Life SciencesAgricultural and Biological SciencesPlant Science
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A-DeepPixBis: Attentional Angular Margin for Face Anti-Spoofing

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Md. Sourave Hossain, Labiba Kanij Rupty, Koushik Roy, Md Hasan et al.

Year: 2020Citations: 21

Face Anti Spoofing (FAS) systems are used to identify malicious spoofing attempts targeting face recognition systems using mediums such as video replay or printed papers. With increasing adoption of face recognition technology as a biometric authentication method, FAS techniques are gaining in impor...

Physical SciencesComputer ScienceSignal Processing
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Ga-doping in Li <sub>0.33</sub> La <sub>0.56</sub> TiO <sub>3</sub> : a promising approach to boost ionic conductivity in solid electrolytes for high-performance all-solid-state lithium-ion batteries

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Md. Nagib Mahfuz, Appy Feroz Nura, Md Shafayatul Islam, Tomal Saha et al.

Journal: RSC AdvancesYear: 2025Citations: 10

Ga doping at the B-site of LLTO solid electrolytes significantly enhances ionic conductivity due to increased B–O bond length and larger grain size. This makes Ga-LLTO a promising candidate for high-performance all-solid-state lithium-ion batteries.

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Rooppur Nuclear Power Plant: Current Status &amp; Feasibility

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Sabhasachi Saha, Roy Koushik, Souvik Roy, Rahman Md. Asfakur et al.

Journal: Strojnícky časopis/Journal of Mechanical EngineeringYear: 2018Citations: 10

Abstract In the present world, nuclear energy is a must need for various purposes. The main cause of nuclear energy is because of the increasing energy demand, which is not possible to provide by using convenient energy generation. Bangladesh is a lower income country and the energy sector is not so...

Physical SciencesEngineeringSafety, Risk, Reliability and QualityOpen Access
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A Novel Approach to Data Storage Using Blockchain Technology

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Koushik Roy, Nur Islam, Tarango Khan, Mohammad Monirujjaman Khan

Year: 2019Citations: 9

Unlike long ago information storage in recent times heavily relies on technology. Physical representations like paper-based documents of data have minimized to a negligible amount. But relying on technology has also its drawbacks. These drawbacks can essentially be in terms of security and security ...

Physical SciencesComputer ScienceInformation Systems
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Blockweave: An Arweave‐Based Decentralized Storage Solution to Tackle the Blockchain Trilemma

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Saha Reno, Koushik Roy, Tamanna Tabassum

Journal: Engineering ReportsYear: 2025Citations: 4

ABSTRACT Blockchain technology faces a fundamental challenge known as the trilemma : The difficulty of achieving scalability, security, and decentralization simultaneously. Existing decentralized storage systems struggle with scalability, especially during high transaction volumes. This paper introd...

Physical SciencesComputer ScienceInformation SystemsOpen Access
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