209 results on '"Sabiha Sultana"'
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2. Fabrication of nano filler doped PVA/starch biodegradable composites with enhanced thermal conduction, water barrier and antimicrobial performance for food industry
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Sabiha Sultana, Sohail Imran, Amir Naveed, Sardar Hussain, Rozina Khattak, Luqman Ali Shah, Kamran Rehan, Imran Rehan, Mujeeb Ur Rehman, Uzma Hashmat, and Farzana Haider
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Montmorillonite ,Vanadium pentoxide ,Polyvinyl alcohol ,Thermal conductivity ,TG/DTA ,UTM ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
In this work there was investigated the synergistic effect of the nanomaterials-the Montmorillonite (MMT) and the vanadium pentoxide (V2O5) on the polyvinyl alcohol (PVA)/starch composite. The composite films were prepared by the solvent casting method. The characterization of the composites showed that the addition of the MMT and the V2O5 to PVA/starch composite decreased the water solubility and water absorption capacity of the film. Both of the reinforcement materials enriched values of thermal conductivity and thermal stability of the composite. The TG/DTA and universal testing machine (UTM) analysis exhibited that MMT and V2O5 augmented the thermal robustness and tensile strength of composites and decreased the strain to break. It was also observed that greater MMT concentration accelerates mechanical strength deterioration of the film owing to agglomeration. The scanning electron microscopy (SEM) analysis reflected great change in the surface morphology of the films in the presence and absence of MMT and V2O5. This was due to the interaction amid constituents of the composite. The chemical interaction between the PVA, Starch, MMT and the V2O5 was also established via Fourier-transform infrared spectroscopy (FTIR) analysis, which revealed fluctuations in the absorbance position and intensity of the PVA/Starch. Antimicrobial activities against seven different cultures of bacteria (both-gram positive and -negative) and one fungus (Candida albicans), exposed that antimicrobial performance of the PVA amplified upon addition of the starch, MMT and V2O5, making these composites prospective candidates for the biodegradable packaging materials.
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- 2024
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3. Serological and oncoinformatic analysis of HbA1c as a prognostic biomarker in screening the risks of different cancers among the male T2D patients of Bangladesh
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Md. Al Hasibuzzaman, H.M. Iftekhar Alam, Md. Abdur Rashid Mia, Samarth Islam, Sabiha Sultana, Sharmin Ahmed, Afsana Masud, Samiur Rahman, Arysha Alif Khan, Fahmida Hoque Rimti, Ashrak Shad Pyash, Partha Biswas, Homayra Rahman Shoshi, Mahbuba Siddiquy, Fariha Hoque Rimu, Ramiza Nausheen Zaman, and Mst. Umme Habiba
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hba1c biomarker ,type 2 diabetes ,serological and oncoinformatic screening ,cancer risk profiling ,genetic overexpression ,hba1-promoter methylation ,Biotechnology ,TP248.13-248.65 - Abstract
Hemoglobin A1C (HBA1c) represents the average serological sugar status of T2D patients of the past three months, considered a clinically standard method of studying sugar metabolism. Overexpressing HbA1 can metabolically forecast the risk of different cancers among T2D patients. Based on this, the study aimed to analyze the impact of sugar metabolism in cancer development considering the overexpression of HbA1 as the prognostic biomarker of screening the risks of eight different cancers among the chronic male T2D patients of Bangladesh. Serological analysis of the concentrations of FBS, THABF, creatinine, SC, STGs, HDLC, and LDLC of the T2D patients was conducted in response to their individual HbA1c concentration. Afterward, HbA1 overexpression and promotor-methylation responsible for BLCA, BRCA, CHOL, COAD, LUAD, LUSC, PAAD, and PRAD cancers in the male T2D patients were profiled as the oncoinformatic screening, where the sample types used, individual cancer stages, racial-footprints, gender, age, nodal metastasis, p53-methylations, pancreatitis, diabetes status, smoking behaviors, and survivability status were studied. Finally, the genetic involvement of a group of genes responsible for genetic co-expression of HbA1, endophytic vesicle regulation, antioxidant regulation, and reactive oxygen species based-metabolic regulation in T2D males was identified and comprehensively discussed. The research revealed a significant correlation between BMI and FBS in both the patient and the control groups (p [ J Adv Biotechnol Exp Ther 2023; 6(2.000): 510-526]
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- 2023
4. Synthesis and characterization of novel iron-modified geopolymer cement from laterite clay as low energy material
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Akbar Ali, Noor-ul-Amin, Hamza Ahmad, Sana Noor, Sabiha Sultana, Huzaifa Umar, Hijaz Ahmad, Fuad A. Awwad, and Emad A. A. Ismail
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Physics ,QC1-999 - Abstract
A new type of geopolymer with an iron–oxygen–silicon linkage is synthesized and reported for the first time. The aim was to enable the iron-rich clay material (laterite) as a raw material for the geopolymerization. Iron was used in different ratios ranging 1–3 wt. % in the raw mix designing geopolymer followed by activation with concentrated alkali solutions of NaOH and KOH in different concentrations. The bonding of Fe–O–Si was confirmed from the FTIR peaks in NaOH- and KOH-based geopolymers. X-ray diffraction studies confirmed the formation of zeolitic, sodalite, and almandite phases. The final product has shown a compressive strength of 2371.8 and 1503 kN/m2 and can be used as a construction material.
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- 2024
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5. Effects of healthcare spending on public health status: An empirical investigation from Bangladesh
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Sabiha Sultana, Md. Emran Hossain, Md. Akhtaruzzaman Khan, Sourav Mohan Saha, Md. Ruhul Amin, and Md. Masudul Haque Prodhan
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JEL Code: H5 ,H51 ,I110 ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
The escalation of healthcare spending in many nations, particularly in emerging countries such as Bangladesh, may be largely attributed to the growing demand for healthcare services. Evidently, there has been a significant expansion in the public funding allocated to the health sector in Bangladesh, intending to enhance health outcomes. Therefore, the purpose of this study was to examine the impact of healthcare expenditure on health outcomes, specifically focusing on the reduction in different mortality rates and the transmission of various infectious diseases. A total of 30 years of data (1990–2019) on the health sector of Bangladesh were collected from different national and international sources. The Vector Autoregression with Exogenous Variables (VARX) model was employed to determine the effects of healthcare expenditure on health outcomes. Results revealed that the per capita health expenditure and the number of doctors showed a significant positive impact on life expectancy and maternal and child health. Also, the government's annual budget on the health sector and number of doctors had a significant positive impact on lowering deaths by Diphtheria, Cholera, Tuberculosis, and Malaria diseases. In order to develop a sustainable healthcare system within the nation, it is imperative for the government to prioritize the allocation of sufficient and effective healthcare funding to cater to the needs of the populace.
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- 2024
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6. Impact of market-based home fortification with micronutrient powder on childhood anemia in Bangladesh: a modified stepped wedge design
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Haribondhu Sarma, Mahfuzur Rahman, Md. Tariqujjaman, Mohammad Ashraful Islam, Mduduzi N. N. Mbuya, Grant J. Aaron, Sufia Askari, Catherine Harbour, Rudaba Khondker, Moniruzzaman Bipul, Sabiha Sultana, Mohammad Ashikur Rahman, Shaima Arzuman Shahin, Morseda Chowdhury, Kaosar Afsana, Samik Ghosh, Cathy Banwell, Catherine D’Este, Mihretab Salasibew, Lynnette M. Neufeld, and Tahmeed Ahmed
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home fortification ,micronutrient powder ,market-based program ,anemia ,children ,Bangladesh ,Nutrition. Foods and food supply ,TX341-641 - Abstract
BackgroundAnemia poses a significant public health problem, affecting 1.6 billion people and contributing to the loss of 68.4 million disability-adjusted life years. We assessed the impact of a market-based home fortification program with micronutrient powder (MNP) called Pushtikona-5 implemented by Bangladesh Rural Advancement Committee (BRAC) on the prevalence of anemia among children aged 6–59 months in Bangladesh.MethodsWe used a modified stepped wedged design and conducted three baseline, two midline, and three endline surveys to evaluate the Pushtikona-5 program implemented through three BRAC program platforms. We interviewed children’s caregivers, and collected finger-prick blood samples from children to measure hemoglobin concentration. We also collected data on coverage of Pushtikona-5 and infant and young child feeding (IYCF) practices. We performed bivariate and multivariable analysis and calculated adjusted risk ratios (ARRs) to assess the effect of program outcomes.ResultsA total of 16,936 households were surveyed. The prevalence of anemia was 46.6% at baseline, dropping to 32.1% at midline and 31.2% at endline. These represented adjusted relative reductions of 34% at midline (RR 0.66, 95%CI 0.62 to 0.71, value of p
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- 2024
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7. Combined impact of lemongrass and spearmint herbs on performance, serum metabolites, liver enzymes, and meat quality of broiler
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Md. Aliar Rahman, Sabiha Sultana, Md. Rahat Ahmad Redoy, Momota Rani Debi, Rakhi Chowdhury, and Mohammad Al-Mamun
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broilers ,lemongrass-spearmint ,liver health ,meat quality ,performance ,Veterinary medicine ,SF600-1100 - Abstract
Objectives: This study aimed to assess the influence of feeding fresh lemongrass (Cymbopogon citratus) or spearmint (Mentha spicata) and their combination on performance, serum metabo¬lites, liver enzymes, and meat quality in broilers. Materials and Methods: A total of 168 day-old Indian River chicks were arbitrarily offered four experimental rations: (i) control ration (CT-R): corn-soya-based ration, (ii) lemongrass ration (LG-R): CT-R + 1.0% DM of lemongrass; (iii) spearmint ration (SM-R): CT-R + 1.0% DM of spearmint; and (iv) lemongrass-spearmint ration (LS-R): CT-R + 0.5% DM from both lemongrass and spear¬mint. Each ration was given to 42 birds for a duration of 35 days, with 3 replications and 14 birds each. Results: Elevated body weight gain was observed in LG-R (1,502 gm), LS-R (1,492 gm), and SM-R (1,474 gm) compared to CT-R (1,451 gm) (p = 0.078). Herbal rations successfully reduced almost 3%–5% of serum and meat total cholesterol concentrations compared to CT-R. Compared to CT-R, the highest zinc and iron concentrations of serum and meat were measured in LG-R and SM-R, respectively, while both minerals of serum and meat were observed to be better in LS-R (p < 0.05). Herbal rations significantly improved serum liver enzyme activity and ameliorated the red color of breast and thigh meat but failed to improve the lightness and yellowness of both types of meat compared to CT-R. Conclusions: LG-R, SM-R, and LS-R improved bird performance, liver health, and meat color, and lowered serum and meat cholesterol levels. But among them, LS-R efficaciously increased the serum and meat zinc and iron concentrations. [J Adv Vet Anim Res 2022; 9(4.000): 712-719]
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- 2022
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8. Synthesis, characterization, and preliminary in vitro antibacterial evaluation of ZnO nanoparticles derived from soursop (Annona muricata L.) leaf extract as a green reducing agent
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Vidhya Selvanathan, Mohammod Aminuzzaman, Lee Xian Tan, Yip Foo Win, Eddy Seong Guan Cheah, Mei Hsuan Heng, Lai-Hock Tey, Sangeetha Arullappan, Norah Algethami, Sami S. Alharthi, Sabiha Sultana, Md Shahiduzzaman, Huda Abdullah, and Md Aktharuzzaman
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Zinc oxide ,Nanoparticles ,Green synthesis ,Annona muricata L. ,Antibacterial activity ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Synthesis of zinc oxide nanoparticles (ZnO NPs) was performed using microwave irradiation technique in the presence of Annona muricata L (soursop) leaf extract as a green reducing agent and Zn(NO3)2.6H2O. X-ray diffraction (XRD) characterization verified the structural identity of the ZnO NPs to be hexagonal wurtzite structure. Similarly, Raman spectrum revealed peaks at 109, 447 and 577 cm−1, verifying formation of pristine ZnO NPs. Based on field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) results, the plant extract was found to assist the formation of quasi-spherical nanoparticles with an average size of 37 nm. UV–vis Absorption spectrum indicates that the green-synthesized ZnO NPs absorb at the wavelength centered at 365 nm, corresponding to band gap of 3.39 eV. The Fourier transform infrared (FTIR) spectroscopic findings demonstrate that phytochemicals in the soursop leaf extract are responsible for the formation of ZnO NPs with a sharp and intense characteristic peak at 466 cm−1. The ZnO NPs demonstrated antibacterial activity against two Gram-positive (Bacillus subtilis and Staphylococcus aureus) and two Gram-negative (Klebsiella pneumoniae and Pseudomonas aeruginosa) bacteria with the inhibition zone between 8–15 mm. For all the bacterial strains, the optimal inhibitory concentration of ZnO NPs was determined to be 50 mg/mL. FESEM analysis of S. aureus depicted partial damage and shape distortion of the cells upon treatment with ZnO NPs at 10 mg/mL, thus proving successful antibacterial activity by the green synthesized ZnO NPs. The microwave irradiated, A. muricata L. extract-mediated green synthesis proposed in this work is a fast, economical and effective technique to synthesize ZnO NPs with promising antibacterial activity.
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- 2022
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9. Anti-Mullerian Hormone (AMH) as a Predictor of Ovarian Response to Clomiphene Citrate in Polycystic Ovarian Syndrome
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Serajoom Munira, Jesmine Banu, Shakeela Ishrat, Mehnaz Mustary Shume, Muhammad Jasim Uddin, and Sabiha Sultana
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anti-mullerian hormone ,polycystic ovarian syndrome ,clomiphene citrate ,ovarian response ,Reproduction ,QH471-489 - Abstract
Background: Serum Anti-Mullerian hormone (AMH) levels in women with polycystic ovary syndrome (PCOS) are two- to threefold higher than in ovulatory women with normal ovaries, corresponding to the two- to threefold increase in the number of small follicles in PCOS. The increased AMH has been hypothesized to reduce follicle sensitivity to follicle stimulating hormone (FSH) and estradiol production, thus preventing follicle selection, resulting in follicular arrest at the small antral phase with failure of dominance. Objective: The study was undertaken to test the hypothesis that high AMH level is associated with poor response to ovulation induction in PCOS women. Methods: This was a cross-sectional comparative study of 50 infertile women with PCOS, grouped into those with AMH level
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- 2021
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10. ROLE OF PUBLIC HEALTH PROFESSIONALS IN TACKLING PANDEMIC SITUATIONS
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Sabiha Sultana, Ahmad Muddasser, Md Mahmudul Hasan, Maimuna Khatun, Sajidur Rahman Akash, Prodip Kumar Baral, and Imtiaj Hossain Chowdhury Eham
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Pandemic, Public Health Professionals, Outbreak. ,Medicine (General) ,R5-920 - Abstract
A pandemic of a disease occurs in many countries and so on continents at a time and affects its huge population physically, mentally, socially and economically. In order to minimize or eliminate the burden of pandemic, it is required to plan and implement effective strategies promptly. The rapid emergence and spread of these pandemic diseases raise severe public health, economic, and development implications. Additionally, it underlines how crucial it is to build comprehensive disease diagnosis and response skills, especially in "hot spot" zones where a wide range of factors may combine to bring about the manifestation of disease. As the entire planet attempts to slow the spread of pandemics from the time of occurrence, public health is now more significant than ever before. Public health professionals are individuals who fight epidemics for the population through disease identification and prevention, conducting research and promoting healthy lifestyles. Recognizing symptoms, such as unusual disease, that indicate a developing outbreak requires public health initiatives, particularly those incorporated in conventional health service provision. Once an unusual disease has been recognized and an outbreak has been established, core health care facilities work to identify individuals and their ties, as well as dismantle transmission chains in communities. This paper will try to present the responsibilities of public health professionals in tackling pandemic situations briefly. In the first section, a short overview of pandemic will be mentioned, then it will structurally discuss what public health experts particularly do during a pandemic.
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- 2022
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11. The Effects of Cabergoline Compared to Dienogest in Women with Symptomatic Endometrioma
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Mehnaz Mustary Shume, Jesmine Banu, Shakeela Ishrat, Serajoom Munira, Muhammad Jasim Uddin, and Sabiha Sultana
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endometriosis ,endometrioma ,cabergoline ,dienogest ,Reproduction ,QH471-489 - Abstract
Background: New vessel formation or neovascularization has been recognized as a feature of endometriosis. Treatment with cabergoline suppresses cell proliferation and vascular-endothelial-growth-factor-mediated angiogenesis, thereby promoting regression of endometriotic lesions. Dienogest, a fourth-generation progestin currently in use for the treatment of endometriosis significantly decreases the volume of endometrial implants. Objective: The objective of the study was to see if cabergoline is as effective as dienogest in reducing the size of endometriomas and pelvic pain in women with endometriosis. Methods: The prospective comparative study was carried out on 56 women with endometrioma (diagnosed by ultrasound), divided by odd and even numbers into two groups. Cabergoline, 0.5 mg tablet twice weekly, was given to 28 women for 3 months. Dienogest, 2 mg tablet daily, was given to 28 women for the same duration. Pre- and post-treatment assessment of endometrioma size by transvaginal sonography and pelvic pain using the 10-cm visual analog scale (VAS) were recorded. Results: The percentage reduction in endometrioma size in women given dienogest was twice that compared to the women given cabergoline. Mean VAS score after 3 months was significantly lower in the cabergoline group compared to dienogest (p ¡ 0.05). The incidence of nausea, vomiting, and headache were similar in cabergoline and dienogest group. There was polymenorrhea in the cabergoline group and irregular spotting in the dienogest group. Conclusions: Reduction of the size of endometrioma is less apparent with cabergoline than dienogest after 3 months of treatment. Cabergoline yields better results in decreasing pelvic pain compared to dienogest.
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- 2021
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12. Retraction: Amin et al. Preparation and Characterization of Mesoporous Silica from Bagasse Bottom Ash from the Sugar Industry. Crystals 2021, 11, 938
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Noorul Amin, Saeed Gul, Sabiha Sultana, and Sultan Alam
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n/a ,Crystallography ,QD901-999 - Abstract
The journal retracts the article “Preparation and Characterization of Mesoporous Silica from Bagasse Bottom Ash from the Sugar Industry” [...]
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- 2022
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13. Towards the development of stable and efficient novel waste ceramics composites
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Mohammad Sohail, Sanaullah Khan, M. Saleem Khan, Ihsan Ullah, Muhammad Omer, Noor Saeed, Sabiha Sultana, Adnan Adnan, Adnan Shahzad, and Mian Gul Sayyed
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Ceramic wastes ,Polyaniline ,FTIR ,Capacitance ,Rheology ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Natural resources are non-renewable and facing a regular depletion due to their immense use which demands new and additional material's reserves, recycling technologies and materials with no or less bad environmental effects. Reuse of waste materials will be rewarding technically, economically and environmentally. Here, we report the incorporation of industrial ceramic wastes in polymer matrix as composite materials to investigate their potentials for various applications. Ceramic wastes were collected from the premises of ceramic producing industries located at Peshawar (Pakistan). The composites of ceramic particles and polyaniline (PANI) were produced via in-situ free polymerization technique. SEM and FT-IR analysis confirmed composite formation. Thermal, dielectric and mechanical properties of the prepared materials were studied. It was found that both the constituent materials (ceramic and polymer) have a synergistic effect on each other. At one hand, ceramic wastes support and enhance the thermal and mechanical properties of the polymer in composites and the polymer in turn beautify the wastes with good dielectric and electrical properties. Based on their properties, the low cost and environmentally friendly novel composites could be used for various applications such as semi-conductors, capacitors and microwave devices.
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- 2021
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14. Molecular Phylogenetics and Biological Potential of Fungal Endophytes From Plants of the Sundarbans Mangrove
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Md Sohanur Rahaman, Md Afjalus Siraj, Sabiha Sultana, Veronique Seidel, and Md Amirul Islam
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bioactivity ,ecosystem ,endophytic fungi ,phylogenetics ,fungal metabolites ,symbiosis ,Microbiology ,QR1-502 - Abstract
The Sundarbans forest in Bangladesh is the world’s largest mangrove. It is a unique ecosystem where living organisms face extreme challenges to compete for survival. Such competition results in the production of bioactive molecules which are useful for agriculture and human health. In this study, eighty fungal endophytes from nine mangrove plants growing in a region, as yet unexplored, of the Sundarbans were isolated by surface sterilisation and pure culture techniques. Among the eighty isolates subjected to a preliminary antimicrobial screening using an agar plug diffusion assay, only fifteen showed some promising activity. These were subsequently identified by polymerase chain reaction of their ITS gene. Extracts prepared from the identified isolates were screened for antimicrobial, antioxidant, cytotoxic and α-glucosidase inhibitory activities. Their total polyphenol and flavonoid content and their FRAP value were also determined. All endophytes are reported for the first time in the plants under investigation.
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- 2020
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15. Impact of Synthetic Parameters on the Compressive Strength of Bagasse Ash-Clay Geopolymer
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Noorul Amin, Saeed Gul, Sabiha Sultana, Sultan Alam, and Amir Naveed
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bottom bagasse ash ,activated clay ,geopolymer ,compressive strength ,curing period ,alkali concentration ,Crystallography ,QD901-999 - Abstract
The impact of different parameters on the compressive strength of geopolymer synthesized from clay and bagasse bottom ash is reported. Geopolymer was synthesized from thermally activated clay and bottom bagasse ash using sodium silicate and sodium hydroxide as activator. The maximum dissolution of alumina and silica from the bagasse ash and clay maintaining different alkali conditions is studied. The resulting geopolymer synthesized under different conditions is studied for compressive strength. Different characterizations of the resulting geopolymer were carried out using different analytical instruments. The results indicated that the dissolution and strength of geopolymer have close relationships with the alkali concentration, solution to solid ratio and curing period. The highest compressive strength of 25 MPa was observed for 8M NaOH, 24 MPa for 0.3 solution to solid ratio, 30 MPa for 60% clay and 30 MPa for 27 days of compressive strength.
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- 2021
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16. Preparation and Characterization of Mesoporous Silica from Bagasse Bottom Ash from the Sugar Industry
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Noorul Amin, Saeed Gul, Sabiha Sultana, and Sultan Alam
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bagasse bottom ash ,green synthesis ,water glass ,mesoporous silica ,Crystallography ,QD901-999 - Abstract
A novel and sustainable process to recycle an environmentally injurious material rich in silica—waste bagasse bottom ash from the sugar industry—into mesoporous pure silica of high purity is reported. Bagasse bottom ash (BBA) is a major byproduct of the sugar industry, with very inadequate recycling possibilities due to environmentally detrimental pollutants, whose production is dramatically increasing. In this study, for the first time, more than 70% of the silica from the bottom ash could be extracted for the synthesis of mesoporous silica using a low-temperature alkaline dissolution method instead of the customary elevated-temperature process. Furthermore, the process of dissolution was thoroughly studied to obtain the essential insight into silica hydrolysis that is largely missing from the existing research literature. Under alkaline conditions, the hydrolysis of silica is hindered due to the formation of zeolites and protective layers around the etching particles. This layer becomes a protective barrier that hinders the mass transfer of silica monomers to the solution, thus halting the dissolution process. Therefore, sequential extractions with optimized conditions of 100 °C for 72 h were employed to attain maximum silica extraction efficiency.
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- 2021
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17. Coupling of Crumpled-Type Novel MoS2 with CeO2 Nanoparticles: A Noble-Metal-Free p–n Heterojunction Composite for Visible Light Photocatalytic H2 Production
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Gayatri Swain, Sabiha Sultana, Brundabana Naik, and Kulamani Parida
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Chemistry ,QD1-999 - Published
- 2017
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18. Factors associated with child hunger among food insecure households in Bangladesh
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Md Ahshanul Haque, Fahmida Dil Farzana, Sabiha Sultana, Mohammad Jyoti Raihan, Ahmed Shafiqur Rahman, Jillian L. Waid, Nuzhat Choudhury, and Tahmeed Ahmed
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Child hunger ,Food insecurity ,Bangladesh ,Under 5 children ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Hunger is associated with food insecurity at the household level and is considered as a global public health problem with long term adverse consequences on children’s health. This study aims to determine the factors associated with child hunger from a nationally representative sample in Bangladesh among food insecure households. Methods Data was derived from the Food Security and Nutritional Surveillance Project; 14,712 children aged 6–59 months belonging to food insecure households contributed to the analysis. Information on food security at the household level was collected for 30 days preceding the survey. Descriptive statistics served to illustrate the variables studied and multiple logistic regression analysis was conducted to identify the significant risk factors for child hunger. Results Overall 10% of the children were found to be hungry. After adjusting for seasonality, residence type and education level of household head, the variables - female headed households [OR: 1.87 (1.43–2.45); p
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- 2017
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19. Examining the relationship between socio-economic status, WASH practices and wasting.
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Mohammad Jyoti Raihan, Fahmida Dil Farzana, Sabiha Sultana, Md Ahshanul Haque, Ahmed Shafiqur Rahman, Jillian L Waid, Ben McCormick, Nuzhat Choudhury, and Tahmeed Ahmed
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Medicine ,Science - Abstract
Childhood wasting is a global problem and is significantly more pronounced in low and middle income countries like Bangladesh. Socio Economic Status (SES) and Water, Sanitation and Hygiene (WASH) practices may be significantly associated with wasting. Most previous research is consistent about the role of SES, but the significance of WASH in the context of wasting remains ambiguous. The effect of SES and WASH on weight for length (WHZ) is examined using a Structural Equation Model (SEM) to explicitly describe the direct and indirect role of WASH in the context of SES.A nationally representative survey of 10,478 Bangladeshi children under 5 were examined. An expert defined SEM was used to construct latent variables for SES and WASH. The SEM included a direct pathway from SES to WHZ and an indirect pathway from SES to WHZ via WASH along with regression of relevant covariates on the outcome WHZ and the latent variables. Both SES (p
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- 2017
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20. Coping strategies related to food insecurity at the household level in Bangladesh.
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Fahmida Dil Farzana, Ahmed Shafiqur Rahman, Sabiha Sultana, Mohammad Jyoti Raihan, Md Ahshanul Haque, Jillian L Waid, Nuzhat Choudhury, and Tahmeed Ahmed
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Medicine ,Science - Abstract
INTRODUCTION:In connection to food insecurity, adaptation of new techniques or alteration of regular behavior is executed that translates to coping strategies. This paper has used data from food security and nutrition surveillance project (FSNSP), which collects information from a nationally representative sample in Bangladesh on coping behaviors associated with household food insecurity. To complement the current understanding of different coping strategies implemented by the Bangladeshi households, the objective of this paper has been set to examine the demographic and socio-economic characteristics of the food insecure households which define their propensity towards adaptation of different types of coping strategies. METHODOLOGY:FSNSP follows a repeated cross-sectional survey design. Information of 23,374 food insecure households available from February 2011 to November 2013 was selected for the analyses. Coping strategies were categorized as financial, food compromised and both. Multinomial logistic regression was employed to draw inference. RESULTS:Majority of the households were significantly more inclined to adopt both multiple financial and food compromisation coping strategies. Post-aman season, educational status of the household head and household women, occupation of the household's main earner, household income, food insecurity status, asset, size and possession of agricultural land were found to be independently and significantly associated with adaptation of both financial and food compromisation coping strategies relative to only financial coping strategies. The relative risk ratio of adopting food compromisation coping relative to financial coping strategies when compared to mildly food insecure households, was 4.54 times higher for households with moderate food insecurity but 0.3 times lower when the households were severely food insecure. Whereas, households were 8.04 times and 4.98 times more likely to adopt both food compromisation and financial relative to only financial coping strategies if moderately and severely food insecure respectively when compared to being mildly food insecure. CONCLUSION:Households suffering from moderate and severe food insecurity, are more likely to adopt both financial and food compromisation coping strategies.
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- 2017
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21. Synthesis and Properties of High Strength Thin Film Composites of Poly(ethylene Oxide) and PEO-PMMA Blend with Cetylpyridinium Chloride Modified Clay
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Mohammad Saleem Khan and Sabiha Sultana
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Chemical technology ,TP1-1185 - Abstract
Ion-conducting thin film composites of polymer electrolytes were prepared by mixing high MW poly(ethylene oxide) (PEO), poly(methyl methacrylate) (PMMA) as a polymer matrix, cetylpyridinium chloride (CPC) modified MMT as filler, and different content of LiClO4 by using solution cast method. The crystallinity, ionic conductivity (σ), and mechanical properties of the composite electrolytes and blend composites were evaluated by using XRD, AC impedance, and UTM studies, respectively. The modification of clay by CPC showed enhancement in the d-spacing. The loading of clay has effect on crystallinity of PEO systems. Blend composites showed better mechanical properties. Young’s modulus and elongation at break values showed increase with salt and clay incorporation in pure PEO. The optimum composition composite of PEO with 3.5 wt% of salt and 3.3 wt% of CPMMT exhibited better performance.
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- 2015
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22. Knowledge on Reproductive Health Issues Among the Unmarried Adolescent Girls
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Nasreen Akther, Nadia Begum, Shahanaz Chowdhury, and Sabiha Sultana
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Menstrual Hygiene ,Family Planning ,HIV/AIDS ,Gynecology and obstetrics ,RG1-991 - Abstract
Objective: To assess the level of knowledge of the adolescent girls regarding reproductive health issues. Materials and methods: A cross sectional descriptive type of study was carried out among 150 unmarried adolescent girls of Vashantek slum in Dhaka city by face to face interview using a semistructured questionnaire from January to June 2008. Results: The mean age of the respondents were 16.4±2.9 years ranging from 10-19 years. Out of 150 respondents, 130 had history of menstruation and their median age of menarche was 13 years. The correct knowledge was high among the adolescent having secondary level of education than the SSC and above or primary level of education and the difference was statistically significant (p
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- 2012
23. Green mediated synthesis of cerium oxide nanoparticles by using Oroxylum indicum for evaluation of catalytic and biomedical activity.
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Mim, Jannatul, Sabiha Sultana, Mst., Dhar, Palash Kumar, Kamrul Hasan, Md., and Dutta, Sagar Kumar
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- 2024
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24. Vitamin B12 is not shared by all marine prototrophic bacteria with their environment
- Author
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Sabiha Sultana, Stefan Bruns, Heinz Wilkes, Meinhard Simon, and Gerrit Wienhausen
- Subjects
Microbiology ,Ecology, Evolution, Behavior and Systematics - Abstract
Vitamin B12 (cobalamin, herein B12) is an essential cofactor involved in amino acid synthesis and carbon resupply to the TCA cycle for most prokaryotes, eukaryotic microorganisms, and animals. Despite being required by most, B12 is produced by only a minor fraction of prokaryotes and therefore leads to complex interaction between prototrophs and auxotrophs. However, it is unknown how B12 is provided by prototrophs to auxotrophs. In this study, 33 B12 prototrophic alphaproteobacterial strains were grown in co-culture with Thalassiosira pseudonana, a B12 auxotrophic diatom, to determine the bacterial ability to support the growth of the diatom by sharing B12. Among these strains, 18 were identified to share B12 with the diatom, while nine were identified to retain B12 and not support growth of the diatom. The other bacteria either shared B12 with the diatom only with the addition of substrate or inhibited the growth of the diatom. Extracellular B12 measurements of B12-provider and B12-retainer strains confirmed that the cofactor could only be detected in the environment of the tested B12-provider strains. Intracellular B12 was measured by LC-MS and showed that the concentrations of the different B12-provider as well as B12-retainer strains differed substantially. Although B12 is essential for the vast majority of microorganisms, mechanisms that export this essential cofactor are still unknown. Our results suggest that a large proportion of bacteria that can synthesise B12de novo cannot share the cofactor with their environment.
- Published
- 2023
25. Knowledge and attitudes towards dietary patterns and lifestyle during COVID-19 pandemic in Bangladesh: an online based cross-sectional study
- Author
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null Ielias Uddin, M. Alshahria Rokon, null Sabiha Sultana, null Anika Jahin, null Mursalin, null Ibrahim Khan, Shraboni Sultana Setu, null Mahnaz Rahman, null M. Sahedul Hasan, null Empa Yeasmin, and Asraul Hasibin Rini
- Subjects
Automotive Engineering - Abstract
Background: COVID-19 outbreak being the only pandemic of 21st century, that affected globally, has left us with some realization that elucidate the advancement in science and medicine is not enough to live a healthy life for the generation of modern era, if lifestyle and habitual factors are not controlled or maintained in proper way. In this study we aimed to find out people’s knowledge and attitudes about dietary patterns and lifestyle during COVID-19. Methods: An online based questionnaire was designed to collect the data based on the age limit of 15 to 60+ years. The survey was focused on both the affected and exposed individuals (n=853). The data was collected under three main sections containing questions about nutritional knowledge, preventive measures adapted by the respondents, lifestyle practices and their concerns. Results: The outcome of the study reveals, significant association between gender of the study and their food consumption diversity (p=0.026
- Published
- 2023
26. IN VITRO EVALUATION OF SUPPRESSING EFFECT OF SOME MEDICINAL PLANT LEAF EXTRACTS ON RADIAL MYCELIA GROWTH OF Fusarium oxysporum f.sp. lycopersici
- Author
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Sabiha Sultana, Rupali Khatun, Sanjoy Kumar Adhikary, and Md. Rejaul Islam
- Abstract
The experiment was conducted to evaluate the effect of six medicinal plant extracts namely Azadiracta indica (Neem), Ocimum tenuiflorum (Tulshi), Cajanus cajan (Pigeon pea), Cynodon dactylon (Durba grass), Lawsonia inermis (Mehandi) and Cliotoria ternatea (Thunkuni) at different concentrations (10, 50, 100 and 200 mg/L) on the radial mycelial growth of Fusarium oxysporum f.sp. lycopersici. The experiment was conducted following Completely Randomized Design (CRD) with five replications. Radial mycelial growth, inhibition percentages and colony characters were recorded. The radial mycelial growth was maximum (90mm) of Neem leaf extracts at 10 mg/L which was statistically similar with Tulshi at 10 mg/L and control treatment. Lowest radial mycelial growth was found in Pigeon pea (18.80 mm) leaf extracts at 200 mg/L. The highest radial mycelia growth inhibition (79.11%) was observed on Pigeon pea at 200 mg/L.
- Published
- 2022
27. EVALUATION OF PHYSICAL CHARACTERISTICS OF SOME OFF-SEASON JACKFRUIT GERMPLASMS FROM SOUTH-WESTERN REGION OF BANGLADESH
- Author
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M.A. Mannan, Sabiha Sultana, and S.A.K.U. Khan
- Abstract
An investigation was carried out to study the physical characteristics of 28 selected off-season jackfruit germplasm of south western region of Bangladesh. There was significant variation among the germplasms in relation to fruit characteristics. Better performance was showed by germplasm no. 6 in respect of total fruit weight, weight of rind, weight of axis, weight of bulbs, weight of seed, number of seed, length and breadth of fruit. Germplasm no. 9 showed better performance in respect of percentage of edible portion. In respect of length of seed and breadth of seed better performance was showed by germplasm no. 11 and 3 respectively. Germplasm no. 26 showed better performance in relation to length and breadth of bulb.
- Published
- 2022
28. Preparation of Agro Waste Derived Poly Lactic Acid Based Green Renewable Nanocomposites with Improved Morphological, Enhanced Thermal, Mechanical and Augmented Antimicrobial Performance
- Author
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Sabiha Sultana, Mohammed A. Gondal, Muhammad Haris, Imran Rehan, Kamran Rehan, Saqib khan, and Muhammad Saleem
- Subjects
Multidisciplinary - Published
- 2022
29. The overlooked role of a biotin precursor for marine bacteria - desthiobiotin as an escape route for biotin auxotrophy
- Author
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Gerrit Wienhausen, Stefan Bruns, Sabiha Sultana, Leon Dlugosch, Luna-Agrippina Groon, Heinz Wilkes, and Meinhard Simon
- Subjects
Bacteria ,Biotin ,Micronutrients ,Vitamins ,Microbiology ,Ecosystem ,Phylogeny ,Ecology, Evolution, Behavior and Systematics - Abstract
Biotin (vitamin B7) is involved in a wide range of essential biochemical reactions and a crucial micronutrient that is vital for many pro- and eukaryotic organisms. The few biotin measurements in the world’s oceans show that availability is subject to strong fluctuations. Numerous marine microorganisms exhibit biotin auxotrophy and therefore rely on supply by other organisms. Desthiobiotin is the primary precursor of biotin and has recently been detected at concentrations similar to biotin in seawater. The last enzymatic reaction in the biotin biosynthetic pathway converts desthiobiotin to biotin via the biotin synthase (BioB). The role of desthiobiotin as a precursor of biotin synthesis in microbial systems, however, is largely unknown. Here we demonstrate experimentally that bacteria can overcome biotin auxotrophy if they retain the bioB gene and desthiobiotin is available. A genomic search of 1068 bacteria predicts that the biotin biosynthetic potential varies greatly among different phylogenetic groups and that 20% encode solely bioB and thus can potentially overcome biotin auxotrophy. Many Actino- and Alphaproteobacteria cannot synthesize biotin de novo, but some possess solely bioB, whereas the vast majority of Gammaproteobacteria and Flavobacteriia exhibit the last four crucial biotin synthesis genes. We detected high intra- and extracellular concentrations of the precursor relative to biotin in the prototrophic bacterium, Vibrio campbellii, with extracellular desthiobiotin reaching up to 1.09 ± 0.15*106 molecules per cell during exponential growth. Our results provide evidence for the ecological role of desthiobiotin as an escape route to overcome biotin auxotrophy for bacteria in the ocean and presumably in other ecosystems.
- Published
- 2022
30. Raising Critical Readers in the 21st Century: A Case of Assessing Fourth-Grade Reading Abilities and Practices
- Author
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Diana J. Arya, Sabiha Sultana, Somer Levine, Daniel Katz, John Galisky, and Honeiah Karimi
- Subjects
Clinical Research - Abstract
Grounded in the sociocultural nature of literacies and informed of the inherent biases in widely used, English-dominant reading assessments in U.S. schools, this case study traces the planning, development, and pilot administration ( n = 52) of a culturally inclusive (i.e., participant informed), online reading assessment. The Critical Reading Assessment (CRA) is designed to gauge elementary students’ comprehension and critical reasoning (i.e., identifying potential biases or instances of diversity, equity and inclusion) of digital, multimodal texts. Findings from our analysis of recorded pilot sessions with student participants, who are predominantly Spanish/English multilingual learners, suggest (a) the importance of transparency and feedback from multiple stakeholders in the assessment development process; (b) the potential affordance of multiple textual modalities for clarifying comprehension skills and abilities; (c) the potential negative consequences of using established, dominant-English reading tests for determining comprehension abilities; and (d) the need for greater opportunities to practice critical discussions (i.e., questions about perspectives, representation, and other potential biases) about texts. Implications from this study highlight the need for supporting elementary students and their teachers in dialogic, critical reading practices of multimodal textual information.
- Published
- 2022
31. Poly (N-vinyl formamide-co-acrylamide) hydrogels: synthesis, composition and rheology
- Author
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Luqman Ali Shah, Komal Gul, Ijaz Ali, Abbas Khan, Sayyar Muhammad, Mohib Ullah, Iram Bibi, and Sabiha Sultana
- Subjects
Polymers and Plastics ,General Chemical Engineering ,Materials Chemistry - Published
- 2022
32. Impact of urbanization on surface energy balance components over metropolitan cities of India during 2000–2018 winter seasons
- Author
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Sabiha Sultana and A. N. V. Satyanarayana
- Subjects
Atmospheric Science ,Environmental protection ,Urbanization ,Environmental science ,Metropolitan area ,Surface energy balance - Abstract
The present study attempts to evaluate the urban energy balance components with respect to increasing urbanization over Indian metropolitan cities during 2000–2018 winter seasons by using Landsat 7 and 8 satellite imageries. The impact of increasing artificial surfaces on different energy fluxes is analyzed for the study period over these cities. The results indicate that the estimated ranges of the energy fluxes are in the range of typical values that are reported in the earlier literatures over cities. The Sensible Heat Flux (SHF) is observed to be increased considerably whereas the Latent Heat Flux (LHF) is noticed to slightly decreasing. The mean SHF over the buildup areas and the dry lands of Delhi noticed to record maximum increase of 28.2 Wm− 2and 39.7 Wm− 2 respectively during the study period. The SHF (LHF) shows positive (negative) correlation with the land surface temperature. The SHF (LHF) is observed to be about 19% – 33% (1.9% – 15%) of the net radiation flux and the residual heat flux is found to be about 60–80% of the net radiation flux. The study advocates the substantiate changes of the surface energy balance parameters would have profound influence on the energy exchange mechanism and which in turn affects regional climatic change.
- Published
- 2022
33. Energy band modulation in CuxP(x=3,1/2)/PbTiO3 via heterogeneous erection induced benign junction interface for enhanced photocatalytic H2 evolution
- Author
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Sabiha Sultana, Kulamani Parida, and Lekha Paramanik
- Subjects
Photocurrent ,Materials science ,Renewable Energy, Sustainability and the Environment ,Energy conversion efficiency ,Energy Engineering and Power Technology ,Nanoparticle ,Condensed Matter Physics ,Fuel Technology ,Chemical engineering ,X-ray photoelectron spectroscopy ,Photocatalysis ,Charge carrier ,Surface charge ,Electronic band structure - Abstract
Prompt recombination of photo-generated charges in semiconducting material strictly restrict photocatalytic process efficiency. Herein, coupling of CuxP nanoparticles and PbTiO3 nanoplates through inert atmosphere calcination process for outstanding H2 production has been reported. Uniform edging distribution of CuxP nanoparticles over PbTiO3 nanoplates; witnessed from TEM analysis revealed an intimate material contact for charge transportation to the active reaction sites of catalyst surface. Besides, junction interface between CuxP and PbTiO3 component; confirmed from XPS and Mott-Schottky analysis yield an amplified photo/electro-chemical and catalytic performance. A stronger photocurrent density via., H2O2 electron scavenger and larger photovoltage in junction material compared with PbTiO3 counterpart; follows higher surface charge transfer efficiency and slower potential decay with longer charge carriers lifetime simultaneously. The PbTiO3 nanoplates with an optimum amount of CuxP have achieved maximum H2 production attaining conversion efficiency of 9.72%. Consequently, a type-II energy band alignment mechanism has been proposed for enhanced H2 production.
- Published
- 2022
34. Effect of particle size distribution of fly ash on compressive strength, pore size and porosity of geopolymeric membrane for car wash water treatment
- Author
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Amir Naveed, Muhammad Arif, Zafar Ullah Khan, Sabiha Sultana, Muhammad Humayun, Muhammad Asif, Muhammad Sadiq, M. Zeeshan Ahad, Ashraf Ilyas, and Zafar Ullah
- Published
- 2022
35. Fabrication of Nano Filler Doped PVA/Starch Biodegradable Composites with Enhanced Thermal Conduction, Water Barrier and Antimicrobial Performance for Food Industry
- Author
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Sabiha Sultana, Sohail Imran, Amir Naveed, Sardar Hussain, Rozina Khattak, Luqman Ali Shah, Kamran Rehan, Imran Rehan, Mujeeb Ur Rehman, and Farzana Haider
- Published
- 2023
36. Robust Photoelectrochemical Route for the Ambient Fixation of Dinitrogen into Ammonia over a Nanojunction Assembled from Ceria and an Iron Boride/Phosphide Cocatalyst
- Author
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Sabiha Sultana, Lekha Paramanik, Sriram Mansingh, and Kulamani Parida
- Subjects
Inorganic Chemistry ,Physical and Theoretical Chemistry - Abstract
The nitrogen reduction reaction is of great scientific significance as a hydrogen fuel carrier as well as a source of value-added products; in context to this, photoelectrochemical (PEC) nitrogen fixation emerges as an effective and environmentally benign strategy to meet the need. Hence, the current work reports an effective catalytic system containing a low-cost iron boride-based cocatalyst onto the CeO
- Published
- 2021
37. Preparation of Chitosan Based Polymer Microgels, Their Composites with Zinc Oxide Nanoparticles, and Physicochemical Investigation
- Author
-
Abbas Khan, Muhammad Rizwan, Luqman Ali Shah, Nasrullah Shah, Muhammad Sufaid Khan, Sabiha Sultana, and Muhammad Ismail
- Subjects
Physical and Theoretical Chemistry - Published
- 2021
38. Die Isolation Strategy for Suspended Devices Released by Dry Etching
- Author
-
Zareena Hassanbee M S A, Arjum M S, Goutham Prakash, Sabiha Sultana, and Vijayaraghavan Madakasira
- Published
- 2022
39. A simple and cost-effective dual side lithography alignment process using a combination of a single mask and direct writing Double Exposure process
- Author
-
Goutam Prakash, Vasanth Kumar, and Sabiha Sultana
- Published
- 2022
40. The physicochemical and DNA binding studies of some medicinal compounds in solutions
- Author
-
Abbas Khan, Muhammad Humayun, Naila, Sabiha Sultana, Luqman Ali Shah, Muhammad Sufaid Khan, and Abdul Malik
- Subjects
chemistry.chemical_compound ,Biochemistry ,Chemistry ,Physical and Theoretical Chemistry ,DNA - Abstract
To understand the expected mode of action, the physicochemical study on the solution properties of medicinal compounds and their interaction with deoxyribonucleic acid (DNA), under varying experimental conditions, is of prime importance. The present research work illustrates the physicochemical study and interaction of certain medicinal compounds such as; Levofloxacin, Ciprofloxacin, and Ibuprofen with DNA. Density, viscosity and surface tension measurements have been performed in order to determine, in a systematic manner, the physicochemical, volumetric and thermodynamic properties of these compounds; and most of these parameters have shown different behavior with varying concentration of solution, temperature of the medium and chemical nature/structure of the compound. In addition, these drugs showed a spontaneous surface-active and association behavior in aqueous solutions. The flow behavior, surface properties, volumetric behavior and solute–solvent interaction of these drugs were prominently influenced by experimental variables and addition of DNA to their solutions. UV–Visible spectroscopy was also used to examine the interaction of these drugs with DNA in aqueous media in detail. Calculated values of binding constants (Kb) for all complexes of drug-DNA are positive, indicating a fruitful binding process. It is seen that a smaller Kb value reflects weaker binding of the drug with DNA and vise versa. Due to the difference in the chemical structure of drugs the values of binding constant are different for various drug-DNA complexes and follow the order Kb(Levofloxacin-DNA) > Kb(Ciprofloxacin-DNA) > Kb(Ibuprofen-DNA). On the basis of spectral changes and Kb it can be said that the binding of all these drugs with DNA may be of physicochemical nature and the dominating binding force be of hydrogen bonding between oxygen of drugs and hydrogen of DNA units and the drug having more oxygen atoms showed stronger binding ability. The data further suggest a limited possibility of chemical type attachment of these drugs with DNA.
- Published
- 2021
41. Nondestructive Determination of Chromium, Nickel, and Zinc in Neem Leaves and Facial Care Products by Laser Induced Breakdown Spectroscopy (LIBS)
- Author
-
Mohammed A. Gondal, Syed Muhammad Salman, Abdul Waheed, I. Rehan, Sabiha Sultana, K. Rehan, Mujeeb Ur Rehman, and Saranjam Khan
- Subjects
chemistry ,Biochemistry (medical) ,Clinical Biochemistry ,Electrochemistry ,chemistry.chemical_element ,Laser-induced breakdown spectroscopy ,Zinc ,Nichrome ,Spectroscopy ,Biochemistry ,Analytical Chemistry ,Nuclear chemistry - Abstract
Laser-induced breakdown spectroscopy (LIBS) was employed to determine Cr, Ni, and Zn in Neem-based beauty soaps and Neem leaves. The measurements were accomplished by attaining the optically thin p...
- Published
- 2021
42. Cerium-Based Metal–Organic Framework Nanorods Nucleated on CeO2 Nanosheets for Photocatalytic N2 Fixation and Water Oxidation
- Author
-
Sriram Mansingh, Sabiha Sultana, Satyabrata Subudhi, Kulamani Parida, and Gayatri Swain
- Subjects
Cerium ,Materials science ,chemistry ,Chemical engineering ,Photocatalysis ,chemistry.chemical_element ,General Materials Science ,Metal-organic framework ,Nanorod ,N2 Fixation - Published
- 2021
43. Synthesis of zeolite-A from bagasse ash and removal of heavy metals from industrial effluents
- Author
-
Yousaf Hameed, Noor-ul-Amin, Amir Naveed, Sultan Alam, Sabiha Sultana, and Saeed Gul
- Subjects
Materials science ,Bagasse ash ,Silicon dioxide ,Heavy metals ,Building and Construction ,Pulp and paper industry ,Hydrothermal circulation ,chemistry.chemical_compound ,chemistry ,Aluminium oxide ,Conversion method ,General Materials Science ,Zeolite ,Effluent - Abstract
Zeolite-A was indirectly synthesised from bagasse ash from the sugar industry using a hydrothermal conversion method. Active silicon dioxide (SiO2) and aluminium oxide (Al2O3) were obtained from the bagasse ash and aluminium sulfate, respectively. The synthesis involves the dissolution of amorphous aluminosilicate releasing [SiO2(OH)2]−2 and Al(OH)−4, the formation of sodium aluminosilicate gel and the crystallisation of zeolite. Results showed that amorphous silica obtained from ash dissolved completely during the first hour of the crystallisation stage. With the increase in crystallisation time up to 4 h, a slight change in the composition of zeolite crystals was observed, due to the dissolution of zeolite-A. The synthesised zeolite showed an excellent adsorption capacity for heavy metal cations from aqueous solutions, especially for Pb++ (187.25 mg/g), followed by Cu++ (63.22 mg/g). This observation indicates that the zeolite-A synthesised from bagasse ash can be used as a low-cost and relatively effective adsorbent for the remediation of heavy metals from the effluents of chemical industries before being released to the environment.
- Published
- 2021
44. Anti-Mullerian Hormone (AMH) as a Predictor of Ovarian Response to Clomiphene Citrate in Polycystic Ovarian Syndrome
- Author
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Mehnaz Mustary Shume, Jesmine Banu, Shakeela Ishrat, Sabiha Sultana, Muhammad Jasim Uddin, and Serajoom Munira
- Subjects
medicine.medical_specialty ,endocrine system ,biology ,endocrine system diseases ,QH471-489 ,business.industry ,Reproduction ,Anti-Müllerian hormone ,female genital diseases and pregnancy complications ,Endocrinology ,Internal medicine ,clomiphene citrate ,medicine ,biology.protein ,business ,polycystic ovarian syndrome ,anti-mullerian hormone ,hormones, hormone substitutes, and hormone antagonists ,ovarian response - Abstract
Background: Serum Anti-Mullerian hormone (AMH) levels in women with polycystic ovary syndrome (PCOS) are two- to threefold higher than in ovulatory women with normal ovaries, corresponding to the two- to threefold increase in the number of small follicles in PCOS. The increased AMH has been hypothesized to reduce follicle sensitivity to follicle stimulating hormone (FSH) and estradiol production, thus preventing follicle selection, resulting in follicular arrest at the small antral phase with failure of dominance. Objective: The study was undertaken to test the hypothesis that high AMH level is associated with poor response to ovulation induction in PCOS women. Methods: This was a cross-sectional comparative study of 50 infertile women with PCOS, grouped into those with AMH level Results: A total of 50 women were recruited, of which 4 dropped out. Women with AMH [Formula: see text] 8 ng/mL comprised only 23.91% of the PCOS women. AMH and day 12 follicle size had a statistically significant association. Adjusting for other confounding variables in linear, logarithmic, and logistic analysis, serum AMH had significant negative relationship with follicle size (r = 0.511, p < 0.001). AMH was also positively correlated with serum LH, testosterone and negatively correlated with serum follicle stimulating hormone (FSH), serum TSH and BMI. Conclusion: We observed that higher AMH level women had poor response to ovulation induction compared to women with low AMH level.
- Published
- 2021
45. The Etiology of Childhood Pneumonia in Bangladesh
- Author
-
Khalequ Zaman, Doli Goswami, David R. Murdoch, Daniel R. Feikin, Christine Prosperi, Maria Deloria Knoll, Muhammad Alfazal Khan, Sayera Banu, Fariha Bushra Matin, Meredith Haddix, Hubert Endtz H.P., W. Abdullah Brooks, Dilruba Ahmed, Melissa M. Higdon, Laura L. Hammitt, Muhammad Saifullah, Mohammed Yunus, Mustafizur Rahman, Katherine L. O'Brien, Yasmin Jahan, Kamrun Nahar, Mohammod Jobayer Chisti, Razib Mazumder, Mohammad Shahriar Bin Elahi, Sabiha Sultana, Lokman Hossain, Arif Uddin Shikder, Mohammed Ziaur Rahman, Muntasir Alam, Fahim Haque, Abu Sadat Mohammad Sayeem Bin Shahid, and Medical Microbiology & Infectious Diseases
- Subjects
Microbiology (medical) ,medicine.medical_specialty ,Lung ,biology ,medicine.diagnostic_test ,business.industry ,Klebsiella pneumoniae ,biology.organism_classification ,medicine.disease ,medicine.disease_cause ,Mycobacterium tuberculosis ,Pneumonia ,Infectious Diseases ,medicine.anatomical_structure ,SDG 3 - Good Health and Well-being ,Internal medicine ,Pediatrics, Perinatology and Child Health ,Streptococcus pneumoniae ,Etiology ,medicine ,business ,Chest radiograph ,Cause of death - Abstract
BACKGROUND: Pneumonia remains the leading infectious cause of death among children
- Published
- 2021
46. Appraisal of genetic variability in sodium azide induced rice mutants to identify selection criteria for higher yield using quantitative attributes
- Author
-
Abdullah Al, Mamun, primary, Monirul, Islam, additional, Sanjoy Kumar, Adhikary, additional, and Sabiha, Sultana, additional
- Published
- 2022
- Full Text
- View/download PDF
47. Do buyouts of commercial licences increase satisfaction of recreational fishers? A paired comparison of two Queensland zones
- Author
-
Marine, Sabiha Sultana, primary, Flint, Nicole, additional, and Rolfe, John, additional
- Published
- 2022
- Full Text
- View/download PDF
48. The Etiology of Childhood Pneumonia in The Gambia
- Author
-
Mohammed Ziaur Rahman, Doli Goswami, Muhammad Saifullah, Sabiha Sultana, Lokman Hossain, Mustafizur Rahman, Abu Sadat Mohammad Sayeem Bin Shahid, Razib Mazumder, Dilruba Ahmed, Mohammed Yunus, Arif Uddin Shikder, Mohammad Shahriar Bin Elahi, Fariha Bushra Matin, Muhammad Alfazal Khan, Laura L. Hammitt, Christine Prosperi, Muntasir Alam, David R. Murdoch, Fahim Haque, Hubert P. Endtz, Daniel R. Feikin, W. Abdullah Brooks, Mohammod Jobayer Chisti, Sayera Banu, Kamrun Nahar, Meredith Haddix, Yasmin Jahan, Melissa M. Higdon, Maria Deloria Knoll, Khalequ Zaman, and Katherine L. O'Brien
- Subjects
Male ,Microbiology (medical) ,medicine.medical_specialty ,etiology ,Disease ,medicine.disease_cause ,Haemophilus influenzae ,Pneumococcal Vaccines ,Risk Factors ,PERCH Site-Specific Etiology Results ,Internal medicine ,Streptococcus pneumoniae ,Humans ,Medicine ,Pneumonia Etiology Research for Child Health ,Developing Countries ,Haemophilus Vaccines ,childhood ,Cause of death ,business.industry ,Incidence ,Incidence (epidemiology) ,Child Health ,Patient Acuity ,Infant ,Bayes Theorem ,Pneumonia ,medicine.disease ,Hospitalization ,Logistic Models ,Infectious Diseases ,Epidemiology of pneumonia ,Case-Control Studies ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,Etiology ,Female ,Gambia ,business - Abstract
Supplemental Digital Content is available in the text., Background: Pneumonia remains the leading cause of death in young children globally. The changing epidemiology of pneumonia requires up-to-date data to guide both case management and prevention programs. The Gambia study site contributed a high child mortality, high pneumonia incidence, low HIV prevalence, Haemophilus influenzae type b and pneumococcal conjugate vaccines-vaccinated rural West African setting to the Pneumonia Etiology Research for Child Health (PERCH) Study. Methods: The PERCH study was a 7-country case-control study of the etiology of hospitalized severe pneumonia in children 1–59 months of age in low and middle-income countries. Culture and nucleic acid detection methods were used to test nasopharyngeal/oropharyngeal swabs, blood, induced sputum and, in selected cases, lung or pleural fluid aspirates. Etiology was determined by integrating case and control data from multiple specimens using the PERCH integrated analysis based on Bayesian probabilistic methods. Results: At The Gambia study site, 638 cases of World Health Organization-defined severe and very severe pneumonia (286 of which were chest radiograph [CXR]-positive and HIV-negative) and 654 age-frequency matched controls were enrolled. Viral causes predominated overall (viral 58% vs. bacterial 28%), and of CXR-positive cases respiratory syncytial virus (RSV) accounted for 37%, Streptococcus pneumoniae 13% and parainfluenza was responsible for 9%. Nevertheless, among very severe cases bacterial causes dominated (77% bacterial vs. 11% viral), led by S. pneumoniae (41%); Mycobacterium tuberculosis, not included in “bacterial”, accounted for 9%. 93% and 80% of controls ≥1 year of age were, respectively, fully vaccinated for age against Haemophilus influenzae and S. pneumoniae. Conclusions: Viral causes, notably RSV, predominated in The Gambia overall, but bacterial causes dominated the severest cases. Efforts must continue to prevent disease by optimizing access to existing vaccines, and to develop new vaccines, notably against RSV. A continued emphasis on appropriate case management of severe pneumonia remains important.
- Published
- 2021
49. Molecular characterization of Canna indica L. based on random amplified polymorphic DNA markers
- Author
-
Nahid Sultana, Bivas Kumar Sarkar, Ronobir Sarker, M. Oliur Rahman, Zakya Sultana Jui, and Sabiha Sultana Akhi
- Subjects
Genetic marker ,Botany ,Plant Science ,Biology ,biology.organism_classification ,Canna indica ,Ecology, Evolution, Behavior and Systematics - Abstract
Random amplified polymorphic DNA (RAPD) markers were employed for characterization, assessment of genetic variation and inferring relationships among six variants of Canna indica L. A total of 198 RAPD bands ranging from 200 bp to 3 kbp were generated by all the six variants. Among them, most of the bands were found to be polymorphic, four band were unique of which two bands (OPA022000 and OPA043000) were observed in the variant 2 (small red) and the other two (OPA013000 and OPA053000) were noticed in the variant 4 (orange), and the remaining bands were found to be monomorphic. The pair-wise genetic distance was determined among the six variants that ranged from 0.1446 to 0.6554. A dendogram was constructed based on the RAPD profiling to infer the relationship among the six variants of C. indica that resulted in two major clusters: the first one contained two variants, viz. variant 1 (local red) and variant 2 (small red), while the second cluster composed of the remaining four variants. The results as revealed from the RAPD analysis were found congruent with those of morphological and anatomical investigation of the species. Bangladesh J. Plant Taxon. 28(1): 75-81, 2021 (June)
- Published
- 2021
50. Distinct glycoconjugate cell surface structures make the pelagic diatom Thalassiosira rotula an attractive habitat for bacteria
- Author
-
Tran Quoc Den, Thomas R. Neu, Sabiha Sultana, Helge‐A. Giebel, Meinhard Simon, and Sara Billerbeck
- Subjects
Plant Science ,Aquatic Science - Abstract
Interactions between marine diatoms and bacteria have been studied for decades. However, the visualization of physical interactions between these diatoms and their colonizers is still limited. To enhance our understanding of these specific interactions, a new Thalassiosira rotula isolate from the North Sea (strain 8673) was characterized by scanning electron microscopy and confocal laser canning microscopy (CLSM) after staining with fluorescently labelled lectins targeting specific glycoconjugates. To investigate defined interactions of this strain with bacteria the new strain was made axenic and co-cultivated with a natural bacterial community and in two- or three-partner consortia with different bacteria of the Roseobacter group, Gammaproteobacteria and Bacteroidetes. The CLSM analysis of the consortia identified six out of 78 different lectins as very suitable to characterize glycoconjugates of T. rotula. The resulting images show that fucose-containing threads were the dominant glycoconjugates secreted by the T. rotula cells but chitin and to a lesser extent other glycoconjugates were also identified. Bacteria attached predominantly to the fucose glycoconjugates. The colonizing bacteria showed various attachment patterns such as adhering to the diatom threads in aggregates only or attaching to both the surfaces and the threads of the diatom. Interestingly the colonization patterns of single bacteria differed strikingly from those of bacterial co-cultures, indicating that interactions between two bacterial species impacted the colonization of the diatom. Our observations help to better understand physical interactions and specific colonization patterns of distinct bacterial mono- and co-cultures with an abundant diatom of costal seas.
- Published
- 2022
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