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Article ; Online: Design and construction of heterostructured Zn

Muthamizh, S / Shahadat Hossain, Md / Alsulmi, Ali / Macadangdang, Romulo R / Sambasivam, Sangaraju / Arul Varman, K

Journal of colloid and interface science

2024 Volume 660, Page(s) 215–225

Abstract: Hierarchical nanostructures have harvested noteworthy attention lately owing to their remarkable capabilities in the fields of energy storing and transformation, catalysis, and electrical devices. We established an effort less and template-free synthetic ...

Abstract	Hierarchical nanostructures have harvested noteworthy attention lately owing to their remarkable capabilities in the fields of energy storing and transformation, catalysis, and electrical devices. We established an effort less and template-free synthetic method to create hierarchical hetero nanostructures of Zn
Language	English
Publishing date	2024-01-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2024.01.083
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Article ; Online: The association of CYP2C19 LoF alleles with adverse clinical outcomes in stroke patients taking clopidogrel: An updated meta-analysis.

Biswas, Mohitosh / Hossain, Md Shahadat / Ahmed Rupok, Tahsin / Hossain, Md Sabbir / Sukasem, Chonlaphat

Clinical and translational science

2024 Volume 17, Issue 4, Page(s) e13792

Abstract: The aggregated risk of recurrent stroke in stroke/transient ischemic attack (TIA) patients carrying CYP2C19 LoF alleles who take clopidogrel has not been investigated recently, and the available research is limited. This study aimed to perform an updated ...

Abstract	The aggregated risk of recurrent stroke in stroke/transient ischemic attack (TIA) patients carrying CYP2C19 LoF alleles who take clopidogrel has not been investigated recently, and the available research is limited. This study aimed to perform an updated meta-analysis to assess the association between CYP2C19 LoF alleles and the risk of recurrent stroke in patients taking clopidogrel. Databases were searched for the literature on eligible studies. The end points were recurrent stroke, composite vascular events, and bleeding events. Odds ratios (ORs) were calculated using RevMan software, where p < 0.05 was considered statistically significant. Patients carrying CYP2C19 LoF alleles who were treated with clopidogrel had a significantly increased risk of recurrent ischemic stroke compared with non-carriers (OR 2.18, 96% CI 1.80-2.63; p < 0.00001). The risk of recurrent stroke was only significantly different in Asian patients (OR 2.29, 96% CI 1.88-2.80; p < 0.00001) but not in patients of other ethnicities; however, there were a limited number of studies in other ethnic groups. Both observational studies (OR 2.83, 96% CI 2.20-3.65; p < 0.00001) and RCTs (OR 1.48, 96% CI 1.10-1.98; p = 0.009) found associations with a significantly increased risk of recurrent ischemic stroke. Asian stroke patients or TIA patients carrying CYP2C19 LoF alleles and taking clopidogrel were at a significantly higher risk of recurrent ischemic stroke than non-carriers. Significantly increased risk of recurrent ischemic stroke was found in both observational studies and RCTs.
MeSH term(s)	Humans ; Clopidogrel/adverse effects ; Platelet Aggregation Inhibitors/adverse effects ; Ischemic Attack, Transient/drug therapy ; Ischemic Attack, Transient/genetics ; Ischemic Attack, Transient/chemically induced ; Alleles ; Cytochrome P-450 CYP2C19/genetics ; Stroke/drug therapy ; Stroke/genetics ; Ischemic Stroke/drug therapy ; Treatment Outcome
Chemical Substances	Clopidogrel (A74586SNO7) ; Platelet Aggregation Inhibitors ; Cytochrome P-450 CYP2C19 (EC 1.14.14.1) ; CYP2C19 protein, human (EC 1.14.14.1)
Language	English
Publishing date	2024-04-06
Publishing country	United States
Document type	Meta-Analysis ; Journal Article ; Review ; Research Support, Non-U.S. Gov't
ZDB-ID	2433157-0
ISSN	1752-8062 ; 1752-8054
ISSN (online)	1752-8062
ISSN	1752-8054
DOI	10.1111/cts.13792
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Article ; Online: Prevalence, antibiotic resistance pattern for bacteriuria from patients with urinary tract infections.

Hossain, Md Jubayer / Azad, Abul Kalam / Shahid, Md Shahadat Bin / Shahjahan, Muhibullah / Ferdous, Jannatul

Health science reports

2024 Volume 7, Issue 4, Page(s) e2039

Abstract: Background and aims: Antibiotic resistance presents a significant global public health challenge, particularly for urinary tract infections (UTIs), and is notably severe in developing countries. Surveillance of the antimicrobial susceptibility patterns ... ...

Abstract	Background and aims: Antibiotic resistance presents a significant global public health challenge, particularly for urinary tract infections (UTIs), and is notably severe in developing countries. Surveillance of the antimicrobial susceptibility patterns of UTI-causing bacteria is crucial for effective treatment selection. This study aimed to analyze these patterns in bacteria isolated from the urine samples of patients at Mughda Medical College Hospital, Dhaka, Bangladesh. Methods: A retrospective study (January 2019 to December 2020) at Mugdha Medical College and Hospital, Dhaka, examined clinical and laboratory data from patients with positive urine cultures (≥10 Results: Among 243 positive urine cultures in both community- and hospital-acquired UTIs, Conclusion: Old adults are particularly vulnerable to UTIs, with
Language	English
Publishing date	2024-04-11
Publishing country	United States
Document type	Journal Article
ISSN	2398-8835
ISSN (online)	2398-8835
DOI	10.1002/hsr2.2039
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Article ; Online: Contextual variation on teachers’ conceptions of ICT-enhanced teaching in engineering education

Mboka Khalid / Md Shahadat Hossain Khan / Sue Gregory

Heliyon, Vol 9, Iss 3, Pp e14531- (2023)

2023

Abstract: Due to the COVID-19 epidemic, higher education all over the world is increasingly reliant on the use of Information and Communication Technology (ICT), which creates several opportunities and problems, especially in the field of engineering education. ... ...

Abstract	Due to the COVID-19 epidemic, higher education all over the world is increasingly reliant on the use of Information and Communication Technology (ICT), which creates several opportunities and problems, especially in the field of engineering education. One of the significant aspects that needs to be bought to the academic attention is how teachers' use of ICT in engineering education has been transformed due to this pandemic. Therefore, the purpose of this study was to investigate views, and practices that define varying conceptions of engineering university teachers’ use of ICT in their teaching. Phenomenography, an emerging research approach in engineering education was used as a theoretical and methodological underpinning. A cohort of 14 teachers was selected from two universities in Bangladesh to participate in a semi-structured in-depth interview. The findings revealed five qualitatively different categories of description such as: imparting information, transmitting structured knowledge, offering guided learning, engaging students toward practice and engaging students toward innovation. Relationships among the categories of description revealed four dimensions of variation such as: purpose of using ICT in engineering teaching, role of a teacher, role of a student and TPACK components. The study further found that ICT-usage underpins teacher’s pedagogical approach to teaching engineering subjects and therefore provides useful information for university policy makers, teachers and curriculum designers toward quality teaching and learning. A quantitative investigation to determine the impact of the pedagogical approaches to teaching underpinned by ICT-use in engineering education is recommended.
Keywords	ICT ; TPACK ; Engineering teaching ; Phenomenography and conceptions ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Language	English
Publishing date	2023-03-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Contextual variation on teachers' conceptions of ICT-enhanced teaching in engineering education.

Khalid, Mboka / Hossain Khan, Md Shahadat / Gregory, Sue

Heliyon

2023 Volume 9, Issue 3, Page(s) e14531

Abstract	Due to the COVID-19 epidemic, higher education all over the world is increasingly reliant on the use of Information and Communication Technology (ICT), which creates several opportunities and problems, especially in the field of engineering education. One of the significant aspects that needs to be bought to the academic attention is how teachers' use of ICT in engineering education has been transformed due to this pandemic. Therefore, the purpose of this study was to investigate views, and practices that define varying conceptions of engineering university teachers' use of ICT in their teaching. Phenomenography, an emerging research approach in engineering education was used as a theoretical and methodological underpinning. A cohort of 14 teachers was selected from two universities in Bangladesh to participate in a semi-structured in-depth interview. The findings revealed five qualitatively different categories of description such as: imparting information, transmitting structured knowledge, offering guided learning, engaging students toward practice and engaging students toward innovation. Relationships among the categories of description revealed four dimensions of variation such as: purpose of using ICT in engineering teaching, role of a teacher, role of a student and TPACK components. The study further found that ICT-usage underpins teacher's pedagogical approach to teaching engineering subjects and therefore provides useful information for university policy makers, teachers and curriculum designers toward quality teaching and learning. A quantitative investigation to determine the impact of the pedagogical approaches to teaching underpinned by ICT-use in engineering education is recommended.
Language	English
Publishing date	2023-03-17
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e14531
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Article: Quantitative determination of artificial sweeteners and sucrose in energy drinks and mango juice available in Dhaka city.

Islam, Kabirul / Tehjib Meghla, Yashna / Akhtaruzzaman, Md / Shamsur Rouf, Abu Shara / Hossian, Md Shahadat / Hossain, Mahboob

Italian journal of food safety

2024 Volume 13, Issue 1, Page(s) 10914

Abstract: Energy drinks and mango juice are popular beverages. Apart from the natural ingredients and some additives present in these drinks, sugar is an important component of both. It has been established that, other than providing sweetness, sugars are potent ... ...

Abstract	Energy drinks and mango juice are popular beverages. Apart from the natural ingredients and some additives present in these drinks, sugar is an important component of both. It has been established that, other than providing sweetness, sugars are potent to bring about health consequences for their consumers. Sweeteners, both artificial (aspartame, sodium cyclamate, and saccharin) and natural (sucrose), were our centers of interest. This study aimed to determine the presence and levels of these sweeteners in energy drinks and mango juice. Spectrophotometric methods were used to determine the concentration of the mentioned sugars. For this purpose, a total of 42 samples of 7 different brands were collected from different locations in Dhaka city, Bangladesh. The methods were found to be linear over the concentration range of 10-26 μg/mL (r
Language	English
Publishing date	2024-01-25
Publishing country	Italy
Document type	Journal Article
ZDB-ID	2717104-8
ISSN	2239-7132
ISSN	2239-7132
DOI	10.4081/ijfs.2024.10914
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Article ; Online: Contextual variation on teachers' conceptions of ICT-enhanced teaching in engineering education

Khalid, Mboka / Hossain Khan, Md Shahadat / Gregory, Sue

Heliyon. 2023 Mar., v. 9, no. 3 p.e14531-

2023

Abstract	Due to the COVID-19 epidemic, higher education all over the world is increasingly reliant on the use of Information and Communication Technology (ICT), which creates several opportunities and problems, especially in the field of engineering education. One of the significant aspects that needs to be bought to the academic attention is how teachers' use of ICT in engineering education has been transformed due to this pandemic. Therefore, the purpose of this study was to investigate views, and practices that define varying conceptions of engineering university teachers' use of ICT in their teaching. Phenomenography, an emerging research approach in engineering education was used as a theoretical and methodological underpinning. A cohort of 14 teachers was selected from two universities in Bangladesh to participate in a semi-structured in-depth interview. The findings revealed five qualitatively different categories of description such as: imparting information, transmitting structured knowledge, offering guided learning, engaging students toward practice and engaging students toward innovation. Relationships among the categories of description revealed four dimensions of variation such as: purpose of using ICT in engineering teaching, role of a teacher, role of a student and TPACK components. The study further found that ICT-usage underpins teacher's pedagogical approach to teaching engineering subjects and therefore provides useful information for university policy makers, teachers and curriculum designers toward quality teaching and learning. A quantitative investigation to determine the impact of the pedagogical approaches to teaching underpinned by ICT-use in engineering education is recommended.
Keywords	COVID-19 infection ; communications technology ; curriculum ; issues and policy ; pandemic ; teachers ; Bangladesh ; ICT ; TPACK ; Engineering teaching ; Phenomenography and conceptions
Language	English
Dates of publication	2023-03
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Use and reproduction
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e14531
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Electronic aggregated data collection on cervical cancer screening in Bangladesh since 2014: what the data tells us?

Nessa, Ashrafun / Hossain, Md Shahadat / Uddin, Sheikh Md Nazim / Islam, Md Rafiqul / Khan, Muhammad Abdul Hannan / Azad, Abul Kalam

BMC public health

2024 Volume 24, Issue 1, Page(s) 270

Abstract: Introduction: To reduce the high prevalence of cervical cancers among the Bangladeshi women, the Government of Bangladesh established a national cervical cancer screening programme in 2005 for women aged 30 to 60 years. The District Health Information ... ...

Abstract	Introduction: To reduce the high prevalence of cervical cancers among the Bangladeshi women, the Government of Bangladesh established a national cervical cancer screening programme in 2005 for women aged 30 to 60 years. The District Health Information System Version 2 (DHIS2) based electronic aggregated data collection system is used since the year 2013. This study summarises data from the year 2014 to 2022 to assess the effectiveness of the electronic data collection system in understanding the outcome of the screening programme. Methods: This is a descriptive study based on secondary data extracted in MS Excel from the DHIS2-based electronic repository of the national cervical cancer screening programme of Bangladesh. The respondents were women aged 30-60 years, screened for cervical cancer using VIA (Visual Inspection of cervix with Acetic acid) method in 465 government health facilities. The data were collected on the participants' residential location, month and year of screening, name and type of health facilities performing VIA, and VIA screening results. Results: The national screening programme reported a total 3.36 million VIA tests from 465 government hospitals in 8 years (2014 to 2022). The national average VIA-positivity rate was 3.6%, which varied from 1.4 to 9.5% among the districts. This national screening programme witnessed an exponential growth, year after year, with 83.3% increase in VIA test from 2014 to 2022. The primary and the secondary care hospitals were the highest collective contributors of VIA tests (86.2%) and positive cases (77.8%). The VIA-positivity rates in different hospital types varied widely, 7.0% in the medical university hospital, 5.7% in the medical college hospitals, 3.9% in the district/general hospitals, and 3.0% in the upazila health complexes. Conclusions: A national cervical cancer screening programme using VIA method and a DHIS2-based electronic data collection backbone, is effective, sustainable, and useful to understand the screening coverage, VIA positivity rate and geographic distribution of the participants and case load to initiate policy recommendations and actions. Decentralization of the screening programme and more efforts at the primary and secondary care level is required to increase screening performances.
MeSH term(s)	Female ; Humans ; Bangladesh ; Data Collection ; Early Detection of Cancer ; Electronics ; Hospitals, District ; Uterine Cervical Neoplasms ; Adult ; Middle Aged
Language	English
Publishing date	2024-01-23
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2041338-5
ISSN	1471-2458 ; 1471-2458
ISSN (online)	1471-2458
ISSN	1471-2458
DOI	10.1186/s12889-023-17545-z
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Article ; Online: ʟ-glutamic acid modulates antioxidant defense systems and nutrient homeostasis in lentil (Lens culinaris Medik.) under copper toxicity.

Fardus, Jannatul / Hossain, Shahadat / Rob, Md Mahfuzur / Fujita, Masayuki

Environmental science and pollution research international

2023 Volume 30, Issue 32, Page(s) 78507–78520

Abstract: Copper (Cu), an essential micronutrient, can generate reactive oxygen species (ROS) at its supra-optimal level in living cells as a transition metal, thus producing oxidative stress in plants. Therefore, protecting plants from Cu-induced oxidative stress ...

Abstract	Copper (Cu), an essential micronutrient, can generate reactive oxygen species (ROS) at its supra-optimal level in living cells as a transition metal, thus producing oxidative stress in plants. Therefore, protecting plants from Cu-induced oxidative stress via the exogenous application of chemical substances, particularly L-glutamic acid (L-Glu), could be a viable strategy for mitigating the toxicity of Cu. The aim of our present study was to investigate how ʟ-Glu protects lentil seedlings from oxidative stress produced by toxic Cu and allows them to survive under Cu toxicity. The results exhibited that when lentil seedlings were exposed to excessive Cu, their growth was inhibited and their biomass decreased due to an increase in Cu accumulation and translocation to the root, shoot, and leaves. Exposure to toxic Cu also depleted photosynthetic pigments, imbalanced water content, and other essential nutrients, increased oxidative stress, and reduced enzymatic and non-enzymatic antioxidants. However, pre-treatment of ʟ-Glu improved the phenotypic appearance of lentil seedlings, which was distinctly evidenced by higher biomass production, maintenance of water balance, and an increase in photosynthetic pigments when exposed to toxic Cu. ʟ-Glu also protected the seedlings from Cu-induced oxidative stress by reducing the oxidative stress marker, specifically by the efficient action of enzymatic and non-enzymatic antioxidants, particularly ascorbate, catalase, monodehydroascorbate, and glutathione peroxidase and maintaining redox balance. Furthermore, ʟ-Glu assisted in maintaining the homeostasis of Cu and other nutrient in the roots, shoots, and leaves of lentil. Collectively, our results provide evidence of the mechanism of ʟ-Glu-mediated protective role in lentil against Cu toxicity, thus proposed as a potential chemical for managing Cu toxicity not only in lentil but also other plants.
MeSH term(s)	Antioxidants/pharmacology ; Antioxidants/metabolism ; Copper/toxicity ; Lens Plant/metabolism ; Glutamic Acid ; Oxidative Stress ; Seedlings/metabolism ; Nutrients ; Homeostasis ; Water ; Hydrogen Peroxide
Chemical Substances	Antioxidants ; Copper (789U1901C5) ; Glutamic Acid (3KX376GY7L) ; Water (059QF0KO0R) ; Hydrogen Peroxide (BBX060AN9V)
Language	English
Publishing date	2023-06-04
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-023-27993-0
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Article: Application of variation theory in STEM education: A comprehensive guideline for STEM teachers.

Hasan, Mahbub / Khan, Md Shahadat Hossain / Ahmed, A K M Foysal

MethodsX

2023 Volume 12, Page(s) 102500

Abstract: Incorporating appropriate pedagogical strategies has been instrumental in the development of a favorable learning environment for holistic learning, particularly in Science, Technology, Engineering, and Mathematics (STEM) education. However, there is ... ...

Abstract	Incorporating appropriate pedagogical strategies has been instrumental in the development of a favorable learning environment for holistic learning, particularly in Science, Technology, Engineering, and Mathematics (STEM) education. However, there is growing evidence of the need to advance the existing methods, through more robust and comprehensive fieldwork grounded in design study. It has been shown that the lack of guidance in lesson planning using variation theory is also thought to require particular attention, as the accuracy of the student learning relies significantly on the planning of the lesson. However, little research has outlined the strategy to be followed for incorporating variation theory. This article proposes a method of preparing lesson plans to systematically implement the variation theory in STEM classrooms. The method seeks to design and implement current techniques as follows:•According to variation theory, teachers must create the necessary conditions for learning for the students to recognize what they are expected to learn.•To create the necessary conditions for learning, teachers define the key aspects of the topic to be covered and use different patterns of variations in teaching those contents, such as contrast, separation, generalization, and fusion.•Finally, teachers focus on the key aspects one by one or simultaneously to grab students' attention.
Language	English
Publishing date	2023-11-27
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2830212-6
ISSN	2215-0161
ISSN	2215-0161
DOI	10.1016/j.mex.2023.102500
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