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Results for “"Mohammad Helal Uddin"”

16+ results

Band gap tuning of perovskite solar cells for enhancing the efficiency and stability: issues and prospects

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Md. Helal Miah, Mayeen Uddin Khandaker, Md. Bulu Rahman, Mohammad Nur‐E‐Alam et al.

Journal: RSC AdvancesYear: 2024Citations: 284

The intriguing optoelectronic properties, diverse applications, and facile fabrication techniques of perovskite materials have garnered substantial research interest worldwide. Their outstanding performance in solar cell applications and excellent efficiency at the lab scale have already been proven...

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Mental disorders in Bangladesh: a systematic review

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Mohammad Didar Hossain, Helal Uddin Ahmed, Waziul Alam Chowdhury, Louis Niessen et al.

Journal: BMC PsychiatryYear: 2014Citations: 263

BACKGROUND: Mental disorders constitute a major public health problem globally with higher burden in low and middle-income countries. In Bangladesh, systematically-collected data on mental disorders are scarce and this leaves the extent of the problem not so well defined. We reviewed the literature ...

Social SciencesPsychologySocial PsychologyOpen Access
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Autism Spectrum disorders (ASD) in South Asia: a systematic review

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Mohammad Didar Hossain, Helal Uddin Ahmed, MM Jalal Uddin, Waziul Alam Chowdhury et al.

Journal: BMC PsychiatryYear: 2017Citations: 177

BACKGROUND: Autism spectrum disorders (ASD) are a group of complex neurodevelopmental disorders. The prevalence of ASD in many South Asian countries is still unknown. The aim of this study was to systematically review available epidemiological studies of ASD in this region to identify gaps in our cu...

Life SciencesNeuroscienceCognitive NeuroscienceOpen Access
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Suicide and depression in the World Health Organization South-East Asia Region: A systematic review

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M. A. M. Chowdhury, HelalUddin Ahmed, MohammadDidar Hossain, Afzal Aftab et al.

Journal: WHO South-East Asia Journal of Public HealthYear: 2017Citations: 111

Background Depression is the most common comorbid psychiatric disorder in people who die by suicide and 39% of global suicides occur in the World Health Organization (WHO) South-East Asia Region. The aim of this systematic review was to identify, for countries of this region, first the prevalence of...

Social SciencesPsychologyClinical Psychology
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Pathways to care of patients with mental health problems in Bangladesh

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Nazmun Nahar Nuri, Malabika Sarker, Helal Uddin Ahmed, Mohammad Didar Hossain et al.

Journal: International Journal of Mental Health SystemsYear: 2018Citations: 99

BACKGROUND: Health systems in Bangladesh are not fully organized to provide optimal care services to patients with mental health problems. There is both a lack of resources and a disproportional distribution of the available resources. To design an equitable health system and plan interventions to i...

Social SciencesPsychologySocial PsychologyOpen Access
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Prevalence of cardiovascular disease among Bangladeshi adult population: a systematic review and meta-analysis of the studies

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Mohammad Chowdhury, Md Ashiqul Haque, Zaki Farhana, Ataul Mustufa Anik et al.

Journal: Vascular Health and Risk ManagementYear: 2018Citations: 93

BACKGROUND: Cardiovascular disease (CVD) is a group of conditions affecting the functioning of the heart or blood vessels and is one of the leading causes of death globally. Like other countries, CVD prevalence is also rising among the adults in Bangladesh. Epidemiological studies have shown not onl...

Health SciencesMedicineEndocrinology, Diabetes and MetabolismOpen Access
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Key degradation mechanisms of perovskite solar cells and strategies for enhanced stability: issues and prospects

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Md. Helal Miah, Md. Bulu Rahman, Mohammad Nur‐E‐Alam, Mohammad Aminul Islam et al.

Journal: RSC AdvancesYear: 2025Citations: 89

Perovskite materials have garnered significant attention within a very short period of time by achieving competitive efficiency. In addition, this material demonstrated intriguing optoelectronic properties and versatile applications. Although they have confirmed amazing efficiency in solar cells at ...

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Emerging biomarkers and potential therapeutics of the BCL-2 protein family: the apoptotic and anti-apoptotic context

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Md. Saddam, Shamrat Kumar Paul, Mohammad Ahsan Habib, Md. Abrar Fahim et al.

Journal: Egyptian Journal of Medical Human GeneticsYear: 2024Citations: 85

Abstract Apoptosis, also known as the programmed death of cells, is responsible for maintaining the homeostasis of tissues, and this function is carried out by caspases. The process of apoptosis is carried out via two distinct pathways: the extrinsic pathway, which is governed by death receptors, an...

Life SciencesBiochemistry, Genetics and Molecular BiologyMolecular BiologyOpen Access
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Lumpy skin disease outbreak in cattle population of Chattogram, Bangladesh

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F. M. Yasir Hasib, Md. Sirazul Islam, Tridip Das, Eaftekhar Ahmed Rana et al.

Journal: Veterinary Medicine and ScienceYear: 2021Citations: 83

BACKGROUND: Lumpy skin disease (LSD) is an important viral disease causing significant economic losses in commercial livestock production. In mid-2019, an outbreak of LSD has been reported in cattle population from different parts of Bangladesh including Chattogram division. A cross-sectional survei...

Life SciencesImmunology and MicrobiologyVirologyOpen Access
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Lead-free alternatives and toxicity mitigation strategies for sustainable perovskite solar cells: a critical review

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Md. Helal Miah, Mayeen Uddin Khandaker, Md. Jakir Hossen, Noor E Ashrafi et al.

Journal: Materials AdvancesYear: 2025Citations: 76

Advancing perovskite solar cells with a focus on environmental and health safety.

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Increase in water temperature increases acute toxicity of sumithion causing nuclear and cellular abnormalities in peripheral erythrocytes of zebrafish Danio rerio

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Md Shahjahan, Mohammad Shadiqur Rahman, SM Majharul Islam, Md. Helal Uddin et al.

Journal: Environmental Science and Pollution ResearchYear: 2019Citations: 70

Global warming and indiscriminate usages of pesticides are notable concern to all. The present study has been conducted to evaluate the effects of high temperature on acute toxicity of sumithion in adult zebrafish. A 2-day renewal bioassay system was used to determine the 96 h LC 50 value of sumithi...

Physical SciencesEnvironmental ScienceHealth, Toxicology and Mutagenesis
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Perovskite materials in X-ray detection and imaging: recent progress, challenges, and future prospects

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Md. Helal Miah, Mayeen Uddin Khandaker, Mohammad Aminul Islam, Mohammad Nur‐E‐Alam et al.

Journal: RSC AdvancesYear: 2024Citations: 67

Perovskite materials have attracted significant attention as innovative and efficient X-ray detectors owing to their unique properties compared to traditional X-ray detectors. Herein, chronologically, we present an in-depth analysis of X-ray detection technologies employing organic-inorganic hybrids...

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Therapeutic potential of a combined hepatitis B virus surface and core antigen vaccine in patients with chronic hepatitis B

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Mamun Al‐Mahtab, Sheikh Mohammad Fazle Akbar, Julio Aguilar, Md. Helal Uddin et al.

Journal: Hepatology InternationalYear: 2013Citations: 63

Purpose The safety and clinical efficacy of a vaccine containing both hepatitis B surface antigen (HBsAg) and hepatitis B core antigen (HBcAg) (HBsAg/HBcAg) were evaluated in patients with chronic hepatitis B (CHB). Methods Eighteen patients with CHB were administered a vaccine containing 100 μg of ...

Health SciencesMedicineEpidemiology
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Determination of hematological and serum biochemical reference values for indigenous sheep (Ovies aries) in Dhaka and Chittagong Districts of Bangladesh

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Md. Kaisar Rahman, Shariful Islam, Jinnat Ferdous, Md. Helal Uddin et al.

Journal: Veterinary WorldYear: 2018Citations: 57

AIM: The study was aimed to determine the reference values of most commonly used hematological and biochemical parameters of indigenous sheep, reared under semi-intensive backyard farms in Dhaka and Chittagong district, Bangladesh. MATERIALS AND METHODS: ) from June to December 2016 from Dhaka and C...

Health SciencesVeterinarySmall AnimalsOpen Access
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Selection of a compatible electron transport layer and hole transport layer for the mixed perovskite FA<sub>0.85</sub>Cs<sub>0.15</sub>Pb (I<sub>0.85</sub>Br<sub>0.15</sub>)<sub>3</sub>, towards achieving novel structure and high-efficiency perovskite solar cells: a detailed numerical study by SCAPS-1D

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Md. Bulu Rahman, Noor-E-Ashrafi, Md. Helal Miah, Mayeen Uddin Khandaker et al.

Journal: RSC AdvancesYear: 2023Citations: 54

/Au) can be attested as a supreme structure for perovskite solar cells with greater efficiency as well as admissible for practical purposes.

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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