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Results for “"Ahmad Irfan"”

16+ results

Flavonoids a Bioactive Compound from Medicinal Plants and Its Therapeutic Applications

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Arpita Roy, Ariba Khan, Irfan Ahmad, Saad Alghamdi et al.

Journal: BioMed Research InternationalYear: 2022Citations: 537

Plants generally secrete secondary metabolites in response to stress. These secondary metabolites are very useful for humankind as they possess a wide range of therapeutic activities. Secondary metabolites produced by plants include alkaloids, flavonoids, terpenoids, and steroids. Flavonoids are one...

Health SciencesMedicineBiochemistryOpen Access
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Global, Regional, and National Burden of Calcific Aortic Valve and Degenerative Mitral Valve Diseases, 1990–2017

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Simon Yadgir, Catherine O. Johnson, Victor Aboyans, Oladimeji Adebayo et al.

Journal: CirculationYear: 2020Citations: 469

BACKGROUND: Nonrheumatic valvular diseases are common; however, no studies have estimated their global or national burden. As part of the Global Burden of Disease Study 2017, mortality, prevalence, and disability-adjusted life-years (DALYs) for calcific aortic valve disease (CAVD), degenerative mitr...

Health SciencesMedicineCardiology and Cardiovascular Medicine
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Evaluation of the APSIM model in cropping systems of Asia

Verified

Donald S. Gaydon, Balwinder Singh, Enli Wang, Perry Poulton et al.

Journal: Field Crops ResearchYear: 2017Citations: 262

Resource shortages, driven by climatic, institutional and social changes in many regions of Asia, combined with growing imperatives to increase food production whilst ensuring environmental sustainability, are driving research into modified agricultural practices. Well-tested cropping systems models...

Life SciencesAgricultural and Biological SciencesEcology, Evolution, Behavior and SystematicsOpen Access
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Investigating of novel inorganic cubic perovskites of A3BX3 (A=Ca, Sr, B P, As, X=I, Br) and their photovoltaic performance with efficiency over 28%

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Avijit Ghosh, Md. Ferdous Rahman, Abdul Kuddus, Mustafa K. A. Mohammed et al.

Journal: Journal of Alloys and CompoundsYear: 2024Citations: 120
Physical SciencesEngineeringElectrical and Electronic Engineering
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Impact of A-Cations Modified on the Structural, Electronic, Optical, Mechanical, and Solar Cell Performance of Inorganic Novel A<sub>3</sub>NCl<sub>3</sub> (A = Ba, Sr, and Ca) Perovskites

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Md. Azizur Rahman, Md. Ferdous Rahman, Latha Marasamy, Md. Harun‐Or‐Rashid et al.

Journal: Energy & FuelsYear: 2024Citations: 114

Recently, lead-free halide perovskites have exhibited outstanding optical absorption, enhanced stability, tunable bandgap, high carrier mobility, nontoxicity, availability of raw materials, and low cost. In this research, A-cations modified the structural, electronic, optical, mechanical, and solar ...

Physical SciencesEngineeringElectrical and Electronic Engineering
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Improving the efficiency of a CIGS solar cell to above 31% with Sb <sub>2</sub> S <sub>3</sub> as a new BSF: a numerical simulation approach by SCAPS-1D

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Md. Ferdous Rahman, Mithun Chowdhury, Latha Marasamy, Mustafa K. A. Mohammed et al.

Journal: RSC AdvancesYear: 2024Citations: 93

/Ni. These findings of the proposed CIGS-based double heterojunction (DH) solar cells offer an innovative method for realization of high-efficiency solar cells that are more promising than the previously reported traditional designs.

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Investigation strain effects on the electronic, optical, and output performance of the novel inorganic halide perovskite Sr3SbI3 solar cell

Verified

Md. Shoriful Islam, Md. Ferdous Rahman, Md. Rasidul Islam, Q. Mahmood et al.

Journal: Chinese Journal of PhysicsYear: 2024Citations: 87
Physical SciencesEngineeringElectrical and Electronic Engineering
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Cytotoxicity screening of Bangladeshi medicinal plant extracts on pancreatic cancer cells

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Sherine George, Siddharth V Bhalerao, Erich A. Lidstone, Irfan Ahmad et al.

Journal: BMC Complementary and Alternative MedicineYear: 2010Citations: 86

BACKGROUND: There has been a long standing interest in the identification of medicinal plants and derived natural products for developing cancer therapeutics. Our study focuses upon pancreatic cancer, due to its high mortality rate, that is attributed in part to the lack of an effective chemotherape...

Life SciencesBiochemistry, Genetics and Molecular BiologyMolecular BiologyOpen Access
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Arsenic Exposure through Dietary Intake and Associated Health Hazards in the Middle East

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Mohammad Idreesh Khan, Md Faruque Ahmad, Irfan Ahmad, Fauzia Ashfaq et al.

Journal: NutrientsYear: 2022Citations: 61

Dietary arsenic (As) contamination is a major public health issue. In the Middle East, the food supply relies primarily on the import of food commodities. Among different age groups the main source of As exposure is grains and grain-based food products, particularly rice and rice-based dietary produ...

Physical SciencesEnvironmental ScienceEnvironmental ChemistryOpen Access
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Band gap engineering in lead free halide cubic perovskites GaGeX <sub>3</sub> (X = Cl, Br, and I) based on first-principles calculations

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Md. Amran Sarker, Md Mehedi Hasan, Md. Al Momin, Ahmad Irfan et al.

Journal: RSC AdvancesYear: 2024Citations: 56

Lead-free inorganic Ge-based perovskites GaGeX 3 (X = Cl, Br, and I) are promising candidates for solar cell applications due to their structural, mechanical, electrical, and optical properties.

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Low uptake of COVID-19 prevention behaviours and high socioeconomic impact of lockdown measures in South Asia: Evidence from a large-scale multi-country surveillance programme

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Dian Kusuma, Rajendra Pradeepa, Khadija Irfan Khawaja, Mehedi Hasan et al.

Journal: SSM - Population HealthYear: 2021Citations: 55

BACKGROUND: South Asia has become a major epicentre of the COVID-19 pandemic. Understanding South Asians' awareness, attitudes and experiences of early measures for the prevention of COVID-19 is key to improving the effectiveness and mitigating the social and economic impacts of pandemic responses a...

Social SciencesPsychologyClinical PsychologyOpen Access
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Unveiling the Structural, Electronic, Optical, Mechanical, and Photovoltaic Properties of Lead-Free Inorganic New Ba<sub>3</sub>MBr<sub>3</sub> (M = As, N, P, and Sb) Perovskites

Verified

Md. Ferdous Rahman, Md. Hafizur Rahman, Abdul Kuddus, Aijaz Rasool Chaudhry et al.

Journal: Energy & FuelsYear: 2024Citations: 47

Highly efficient, stable perovskite solar cells (PSCs) are investigated using barium (Ba)-based homologous series compound materials such as Ba3MBr3 (M = As, P, Sb, and N) as absorbers due to their exceptional light-absorbing and stability qualities. Despite achieving a power conversion efficiency (...

Physical SciencesEngineeringElectrical and Electronic Engineering
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Four New Flavones and a New Isoflavone from <i>Iris bungei</i>

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M. Iqbal Choudhary, M. Nur‐e‐Alam, Irfan Ahmad Baig, Farzana Akhtar et al.

Journal: Journal of Natural ProductsYear: 2001Citations: 46

Four new irisflavones A-D (1-4) and irilin D (5) have been isolated from the underground parts of Iris bungei along with known isoflavones, irilins A-B (6-7) and tlatancuayin (8). The structures of the new compounds were determined using NMR and mass spectroscopic methods and were found to be 2',5,7...

Life SciencesBiochemistry, Genetics and Molecular BiologyMolecular Biology
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Rubidium based new lead free high performance perovskite solar cells with SnS2 as an electron transport layer

Verified

Md. Selim Reza, Md. Ferdous Rahman, Md. Shamim Reza, Md. Rasidul Islam et al.

Journal: Materials Today CommunicationsYear: 2024Citations: 43
Physical SciencesEngineeringElectrical and Electronic Engineering
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Wind Energy Development in South Asia: Status, Potential and Policies

Verified

Muhammad Irfan, Zhenyu Zhao, Marie Claire Mukeshimana, Munir Ahmad

Journal: 2019 2nd International Conference on Computing, Mathematics and Engineering Technologies (iCoMET)Year: 2019Citations: 39

Energy plays an important role in the economic development of a country. Due to huge population, the gap between energy demand and supply has been increased among most South Asian countries including Pakistan, India and Bangladesh, which is restricting the economic growth of this region. Fossil fuel...

Physical SciencesEnvironmental SciencePollution
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