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Acute Lymphoblastic Leukemia Presenting as Systemic Juvenile Idiopathic Arthritis: Experience from Bangladesh

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Open Journal of Rheumatology and Autoimmune Diseases 2024年第1期14卷 1-12页

作者： Manik Kumar Talukder Kamrul Laila md. arif hossain md. Shafiqul Islam md. Zahidul Islam Kalyan Benjamin Gomes Mujammel Haque md. Mahbubul Islam md. Imnul Islam Department of Paediatrics Bangabandhu Sheikh Mujib Medical University Dhaka Bangladesh Health Services Dhaka Bangladesh NICVD Dhaka Bangladesh

Background: Acute lymphoblastic leukemia (ALL), the most common paediatric malignancy, is a heterogeneous hematologic disease. ALL patients may present with isolated and persistent osteo-articular complaints, lower incidence of hepatomegaly, splenomegaly or lymphadenopathy without clear laboratory features, and misdiagnosed as systemic juvenile idiopathic arthritis (sJIA). Methods: This was a single center cross sectional study over a period of 4 years. Clinic laboratory profiles of 39 ALL children were compared with 39 age and sex-matched sJIA cases. Result: Among 39 ALL patients 89.7% were initially misdiagnosed as sJIA upon clinical presentation. Majority (66.7%) of ALL patients had oligo-articular joint involvement. In sJIA, small joints of the hands were most commonly involved. The total WBC count was significantly higher in ALL patients (p-value 0.0065). CRP and LDH values between the two groups showed significant differences (p-value 0.00006 and 0.00001 respectively). Conclusion: The presentation of leukemia with arthralgia or arthritis makes the diagnosis difficult for the physicians. The diagnosis of sJIA must be made with caution keeping the possibility of haematological malignancy in mind.

关键词： ALL sJIA Arthritis Arthralgia Musculoskeletal

Determinants of emergency contraceptive pill use in Bangladesh: An analysis of national survey data

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Asian pacific Journal of Reproduction 2022年第2期11卷 62-69页

作者： md.Rahman Mahfuzur md.Rashed Alam md.arif Billah Department of Population Science and Human Resource Development University of RajshahiRajshahi 6205Bangladesh Department of Social Work and Counselling Faculty of BusinessEconomic and Social DevelopmentUniversiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia

Objective:To examine the determinants of emergency contraceptive pill use in ***:Data for this cross-sectional study came from 2017-2018 Bangladesh Demographic and Health *** of 906 reproductive age women who were potential candidates for using emergency contraceptive pill were analysed in this *** were analysed using univariate and multivariate *** binary logistic regression was employed as multivariate ***:Only 10.9%candidates were found to ever use emergency contraceptive *** odds of using emergency contraceptive pill for women visited by family planning field worker was significantly higher than that for those who were not visited by family planning field worker[odds ratio(OR)1.94;95%confidence interval(CI)1.19–3.17;P=0.008],while the odds of using emergency contraceptive pill for women with high socioeconomic status was higher than that for those with low socioeconomic status(OR 3.10;95%CI 1.61–5.97;P=0.001).Additionally,having some media access was linked to an increase in the odds of using emergency contraceptive pill(OR 3.01;95%CI 1.33–6.83;P=0.008).Women empowerment related factors did not show any significant effect on emergency contraceptive pill ***:The findings indicate that family planning programme has a great opportunity of playing an important role in increasing emergency contraceptive pill use in Bangladesh by increasing the knowledge and awareness of women about emergency contraceptive pill.

关键词： Emergency contraceptive pill Unintended pregnancy Abortion Bangladesh Demographic and Health Survey Bangladesh

Crop Improvement and Abiotic Stress Tolerance Promoted by Moringa Leaf Extract

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Phyton-International Journal of Experimental Botany 2022年第8期91卷 1557-1583页

作者： md.Abir Ul Islam Juthy Abedin Nupur Charles T.Hunter Abdullah Al Mamun Sohag Ashaduzzaman Sagar md.Sazzad hossain Mona F.A.Dawood Arafat Abdel Hamed Abdel Latef Marián Brestič md.Tahjib-UI-arif Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaEdmontonAB T6G 2R3Canada Chemistry Research Unit United States Department of Agriculture-Agricultural Research ServiceGainesville32608USA Department of Biochemistry&Molecular Biology Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Crop Botany Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Agronomy and Haor Agriculture Sylhet Agricultural UniversitySylhet3100Bangladesh Botany and Microbiology Department Faculty of ScienceAssiut UniversityAssiut71516Egypt Botany and Microbiology Department Faculty of ScienceSouth Valley UniversityQena83523Egypt Department of Botany and Plant Physiology Czech University of Life Sciences PraguePrague16500Czech Republic Institute of Plant and Environmental Sciences Faculty of Agrobiology and Food ResourcesSlovak University of AgricultureNitra94976Slovakia

Moringa leaf extract(MLE)has been shown to promote beneficial outcomes in animals and *** is rich in amino acids,antioxidants,phytohormones,minerals,and many other bioactive compounds with nutritional and growth-promoting *** reports indicated that MLE improved abiotic stress tolerance in *** understanding of the mechanisms underlying MLE-mediated abiotic stress tolerance remains *** review summarizes the existing literature on the role of MLE in promoting plant abiotic stress acclimation *** is applied to plants in a variety of ways,including foliar spray,rooting media,and seed *** application of MLE promoted crop plant growth,photosynthesis,and yield under both nonstress and abiotic stress *** treatment reduced the severity of osmotic and oxidative stress in plants by regulating osmolyte accumulation,antioxidant synthesis,and secondary *** also improves mineral homeostasis in the presence of abiotic ***,this review describes the potential mechanisms underpinning MLEmediated stress tolerance.

关键词： Abiotic stress antioxidants biostimulant plant growth moringa extract osmotic stress oxidative stress

A comparative study of the antioxidant,antimicrobial,cytotoxic and thrombolytic potential of the fruits and leaves of Spondias dulcis

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Asian Pacific Journal of Tropical Biomedicine 2013年第9期3卷 682-691页

作者： shawkat md.Aminul Islam kh Tanvir Ahmed Mohammad Kawsar Manik md.arif Wahid chowdhury shafayat ibne Kamal Department of Pharmacy East West University

Objective:To investigate the antioxidant,antimicrobial,cytotoxic and thrombolytic property of the fruits and leaves of Spondias dulcis(***).Methods:Methanolic extracts of fruits and leaves of *** were partitioned with chloroform and *** antioxidant potential of the crude extract and partitioned fractions were evaluated in terms of total phenolic content,total flavonoid content,DPPH radical scavenging potential,reducing potential and total antioxidant capacity by specific standard *** antimicrobial activity was evaluated using disc diffusion *** cytotoxicity was evaluated by using brine shrimp lethality bioassay and compared with vincristine *** thrombolytic activity was compared with ***:The methanolic fruit extract exhibited the highest phenolic content,flavonoid content and antioxidant capacity,among the other extracts,with the highest DPPH radical scavenging activity at a concentration of 10μg/mL(IC_(50):1.91μg/mL)and maximum reducing power at a concentration of 100μg/ml.(EC_(50):3.58μg/mL).Though all extract showed moderate antimicrobial activity against the bacterial strains,weak or no activity against *** range of LC_(50)value of all extracts was 1.335-14.057μg/mL which was far lower than the cut off index for *** extracts exhibited statistically significant(P<0.001)thrombolytic ***:Our study suggested that *** exhibits antimicrobial activities against a wide variety of strains while it possesses significant antioxidant,cytotoxic and thrombolytic aclivily.

关键词： Spondias dulcis Antioxidant activity Antimicrobial activity Cytotoxic activity Thrombolytic activity DPPH IC50 LC(50

教师在农村中学教学中的ICT整合：在孟加拉国的一项质性调查

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教师在农村中学教学中的ICT整合：在孟加拉国的一项质性调查

作者： md.arif Hasan 东北师范大学

学位级别：硕士

信息和通信技术(ICT)已在许多国家被广泛接受,以促进教学实践。在孟加拉国,信息通信技术也被引入教育系统的各个阶段。目前的研究集中在位于孟加拉国农村地区(西北部)的一所中学。本研究的目的是通过调查教师对将ICT融入其教学实践的有... 详细信息

信息和通信技术(ICT)已在许多国家被广泛接受,以促进教学实践。在孟加拉国,信息通信技术也被引入教育系统的各个阶段。目前的研究集中在位于孟加拉国农村地区(西北部)的一所中学。本研究的目的是通过调查教师对将ICT融入其教学实践的有效性的信念、他们对应用ICT的感知技能和能力以及他们在农村中学实施ICT的挑战,了解ICT整合在农村中学的现状。教学。本研究采用WST模型来调查教师对ICT的整合。本研究使用定性案例研究设计来回答研究目标。研究发现,大多数教师对将ICT融入教学和学习实践抱有积极的信念,而少数教师也持消极信念。农村中学教师可以将一些特定的教育技术融入到他们的教学活动中。然而,他们也报告说他们对数字素养、计算机素养以及将这些工具和技术整合到课堂实践中的知识匮乏。由于他们对技术和技巧的了解不足,他们在ICT集成方面的能力和信心水平较低。除此之外,他们还面临着缺乏适当培训、基础设施差、网速差、技术费用和不平等、缺乏学校技术支持以及设备不可靠等挑战。

关键词： ICT整合中学农村教师孟加拉国 ICT技能和能力

Design and Optimization of Photonic Crystal Fiber for Liquid Sensing Applications

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Photonic Sensors 2016年第3期6卷 279-288页

作者： md. Faizul Huq arif Kawsar AHMED Sayed ASADUZZAMAN md. Abul Kalam AZAD Department of Information and Communication Technology (ICT) Mawlana Bhashani Science and TechnologyUniversity (MBSTU) Tangail-1902 Bangladesh Department of Material and Metallurgical Engineering (MME) Bangladesh University of Engineering and TechnologyUniversity (BUET) Dkaka-l O00 Bangladesh

This paper proposes a hexagonal photonic crystal fiber （H-PCF） structure with high relative sensitivity for liquid sensing; in which both core and cladding are microstructures. Numerical investigation is carried out by employing the full vectorial finite element method （FEM）. The analysis has been done in four stages of the proposed structure. The investigation shows that the proposed structure achieves higher relative sensitivity by increasing the diameter of the innermost ring air holes in the cladding. Moreover, placing a single channel instead of using a group of tiny channels increases the relative sensitivity effectively. Investigating the effects of different parameters, the optimized structure shows significantly higher relative sensitivity with a low confinement loss.

关键词： Photonic crystal fiber (PCF) liquid sensor microstructure core sensitivity confinement loss

Bio-inspired optimization algorithms for optical parameter extraction of dielectric materials: A comparative study

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Chinese Physics B 2016年第10期25卷 202-208页

作者： md Ghulam Saber Kh arif Shahriar Ashik Ahmed Rakibul Hasan Sagor Department of Electrical and Electronic Engineering Islamic University of Technology (IUT) Department of Electrical and Electronic Engineering Northern University Bangladesh (NUB)

Particle swarm optimization(PSO) and invasive weed optimization(IWO) algorithms are used for extracting the modeling parameters of materials useful for optics and photonics research community. These two bio-inspired algorithms are used here for the first time in this particular field to the best of our knowledge. The algorithms are used for modeling graphene oxide and the performances of the two are compared. Two objective functions are used for different boundary values. Root mean square(RMS) deviation is determined and compared.

关键词： optical parameter extraction particle swarm optimization invasive weed optimization graphene oxide optimization

Anti-inflammatory and antioxidant activities of ethanolic extract of aerial parts of Vernonia patula(Dryand.)Merr.

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Asian Pacific Journal of Tropical Biomedicine 2013年第10期3卷 798-805页

作者： Arpona Hira Shubhra Kanti Dey md.Sariful Islam Howlader arif Ahmed Hemayet hossain Ismet Ara Jahan Pharmacy Discipline.Life Science School Khulna UniversityKhulna-9208Bangladesh Department of Pharmacy World University of BangladeshDhaka-1205Bangladesh BCSIR Laboratories.Dhaka.Bangladesh Council of Scientific and Industrial Research.Dr.Qudrat-E-Khuda Road Dhaka-1205Bangladesh

Objective:To investigate the inflammatory and antioxidant activities of ethanolie extract of aerial part of Vernonia patula(Dryand.)Merr(EAV).Methods:The anti-inflammatory activity of EAV was studied using carrageenan and histamine-induced rat paw edema test at different doses(100.200 and 400 mg/kg body weight).DPPH free radical scavenging,nitric oxide scavenging,reducing power and Fe^(2+)ion chelating ability were used for determining antioxidant ***:The EAV,at the dose of 400 mg/kg,showed a significant anti-inflammatory activity(P<0.01)both in the carrageenan and histamine-induced oedema test models in rats,showing62.86%and 64.42%reduction in the paw volume comparable to that produced by the standard drug indomethacin(67.26%and 66.01%)at 5 h *** DPPH free radical scavenging test,IC_(50)value for EAV was found fairly significant 36.59μg/mL when compared to the IC_(50)value of the reference standards ascorbic acid 8.97μg/*** IC_(50)values of the extract and ascorbic acid were 47.72 and 12.39μg/mL,respectively in nitric oxide scavenging *** IC_(50)value of the EAV(33.59μg/mL)as percentage of Fe^(2+)ion chelating ability was also found significant compared to that of EDTA(9.16μg/mL).The maximum absorbance for reducing power assay was found to be1.928 at 100μg/mL when compared to 2.449 for standard ascorbic *** total phenolic content was 198.81 mg/g of gallic acid *** toxicity test showed that the plant might be safe for pharmacological uses up to a dose level of 3200 mg/kg of body weight in ***:Therefore,the obtained results suggest the acute anti-inflammatory and antioxidant activities of the EAV and thus provide the scientific basis for the traditional uses of this plant part as a remedy for inflammations.

关键词： Vernonia patula Anti-inflammatory DPPH free-radical scavenging Nitric oxide radical scavenging Reducing power Acute toxicity

Hyperchaos and md5 Based Efficient Color Image Cipher

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Computers, Materials & Continua 2022年第7期72卷 1645-1670页

作者： Muhammad Samiullah Waqar Aslam Saima Sadiq arif Mehmood Gyu Sang Choi Department of Computer Science&IT The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Computer Science Khwaja Fareed University of Engineering and Information TechnologyRahim Yar Khan64200Pakistan Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

While designing and developing encryption algorithms for text and images,the main focus has remained on *** has led to insufficient attention on the improvement of encryption efficiency,enhancement of hyperchaotic sequence randomness,and dynamic DNA-based *** this regard,a new symmetric block cipher scheme has been *** uses dynamic DNA-based S-box connected with md5 and a hyperchaotic system to produce confusion and diffusion for encrypting color *** proposed scheme supports various size color *** generates three DNA based Sboxes for substitution namely DNA_1_s-box,DNA_2_s-box and DNA_3_sbox,each of size 16×***,the 4D hyperchaotic system followed by md5 is employed in a novel way to enhance *** three DNAbased S-boxes are generated from real DNA sequences taken from National Center for Biotechnology Information(NCBI)databases and are dependent on the mean intensity value of an input image,thus effectively introducing content-based ***,Conservative Site-Specific Recombination(CSSR)is applied on the output DNA received from DNA based *** experimental results indicate that the proposed encryption scheme is more secure,robust,and computationally efficient than some of the recently published similar *** computational efficient,our proposed scheme is feasible on many emergent resource-constrained platforms.

关键词： Block cipher substitution permutation diffusion confusion