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Liver Function Tests in Patients of Acute Leukemia before and after Induction Chemotherapy

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Journal of Biosciences and Medicines 2020年第2期8卷 110-121页

作者： Tahmidul Islam A. K. M. shahidur Rahman Md. Kamrul Hasan Ferdous Jahan Manik Chandra Mondal Sheuly Ferdoushi Sabrina Alam Mohammad Kamrul ahsan Jannatut Tasnim Sharaban Tohura Department of Biochemistry Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Nephrology Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Haematology Colonel Malek Medical College Manikganj Bangladesh Department of Laboratory Medicine Bangabandhu Sheikh Mujib Medical University (BSMMU) Dhaka Bangladesh Department of Biochemistry TMSS Medical College Bogura Bangladesh Holy Family Red Crescent Medical College Hospital (HFRCMCH) Dhaka Bangladesh Department of Biochemistry Popular Medical College Dhaka Bangladesh Sadar Hospital Lalmonirhat Bangladesh

Background: Patients of acute leukemia require careful assessment of liver function prior to start chemotherapy to determine which drugs may be appropriate or to be modified. Post chemotherapy abnormalities of liver function tests may be due to drugs or due to disease process itself. Objective: To evaluate the status of liver function in acute leukemia patients before and after induction chemotherapy. Methodology: This was a prospective cross-sectional study conducted in the Department of Biochemistry, Dhaka Medical College, Dhaka, Bangladesh from January 2017 to December 2017 on fifty (50) newly diagnosed patients of acute leukemia who fulfilled the selection criteria. Blood samples for serum total bilirubin, alanine transaminase (ALT) and aspartate transaminase (AST) were collected before chemotherapy (Day 1) and after induction chemotherapy on 14th day and 30th day. Serum ALT and AST were measured by kinetic method and serum total bilirubin was measured by DMSO method. Data were analyzed and compared by statistical tests. Result: In this study, the mean level of serum total bilirubin before chemotherapy at day 1 was 0.89 ± 0.64 mg/dl. It was significantly (p Conclusion: It is concluded that serum total bilirubin, ALT and AST increase in response to chemotherapeutic drugs during treatment of acute leukemia.

关键词： Acute Leukaemia Alanine Transaminase (ALT) Aspartate Transaminase (AST) Bilirubin Chemotherapy

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基于环境振动的某超高层建筑动力特性识别

基于环境振动的某超高层建筑动力特性识别

Conflicts and Displacements in Syria: Exploring Life Trajectories of Separated Refugee Minors

第十五届全国振动理论及应用学术会议（NVTA2023）

作者：蔡康黄铭枫李宾宾 ahsan Kareem

准确估计高层建筑的模态参数(自振频率、阻尼比)对于结构的设计、健康监测、振动控制和状态评估至关重要。本文基于变分模态分解、平滑离散能量分离算法和半周期能量算子(VMD-SH)的组合,提出了一种结构模态参数估计方法。基于低频低阻... 详细信息

准确估计高层建筑的模态参数(自振频率、阻尼比)对于结构的设计、健康监测、振动控制和状态评估至关重要。本文基于变分模态分解、平滑离散能量分离算法和半周期能量算子(VMD-SH)的组合,提出了一种结构模态参数估计方法。基于低频低阻尼的数值算例,验证了平滑离散能量分离算法和半周期能量算子在单模态系统模态识别中的有效性。随后,利用该方法基于加速度响应来计算某个典型的超高层建筑的模态参数。识别结果验证了所提出的VMD-SH方法由加速度响应数据准确估计高层建筑的动力特性参数方面的有效性和鲁棒性。

关键词：模态参数识别变分模态分解能量分离算法自振频率阻尼比

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Asian Journal of Middle Eastern and Islamic Studies 2018年第2期12卷 207-224页

作者： A.K.M.ahsan Ullah Faculty of Arts and Social Sciences the University of Brunei Darussalam

This paper explores how unaccompanied refugee children from Syria made their way to destination countries and how they become unaccompanied and the consequences of being *** paper is based on interviews with Syrian child refugees in Turkey,Lebanon,Egypt and Jordan,and aid workers of international organizations who provide support with child *** long-standing conflict has caused Syrian children to suffer immensely,both physically and *** show that majority of the children became conflict orphan and left *** reported that they became separated or unaccompanied from their parents or relatives while crossing the border in the mass *** parents were arrested and killed in Syria by both the government and *** children were left alone by their relatives on the border in order to avoid violence in Syria,and some were smuggled into the destinations countries.

关键词： Conflict child refugee Syria civil war unaccompanied minors

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孟加拉国温室气体排放量清查:初步结果

人类环境杂志 1996年第4期25卷 299-303页

作者： ahsan Uddin Ahmed K.Islam M.Reazuddin 王其冬孟加拉国现代研究中心环境局

本文给出1990年孟加拉国温室气体源和汇的清查结果。因为二氧化碳(CO_2)被认为是导致全球气候变化的主要原因,而能源的使用是CO_2最大的排放源,所以本文着重分析孟加拉国的能源系统。同时分析了森林的碳排放和碳吸收。由农业、牲畜和城... 详细信息

本文给出1990年孟加拉国温室气体源和汇的清查结果。因为二氧化碳(CO_2)被认为是导致全球气候变化的主要原因,而能源的使用是CO_2最大的排放源,所以本文着重分析孟加拉国的能源系统。同时分析了森林的碳排放和碳吸收。由农业、牲畜和城市垃圾填埋地的垃圾释放的甲烷(CH_4)也包括在内。在1990年,使用化石燃料排放的CO_2有15.5Tg。森林导致的碳排放也进行了计算。在1990年,大约5.46Tg C被发现是从采伐或消耗森林资源而排放的。另一方面,森林吸收了大约12.32Tg C。根据这些数据(不包括竹子),在1990年,孟加拉国森林起着净碳汇的作用,容量为6.86Tg碳。1990年水稻种植导致的CH_4排放在257～622Gg之间,中间值为439Gg。牲畜排放的CH_4大约为453Gg。大约5.92Gg的CH_4排放是来自天然气的泄漏、井口燃烧和输配过程。孟加拉国主要城市地区的垃圾填埋地排放的CH_4大约为74Gg。

关键词：孟加拉国温室效应气体气体排放量

Handwritten Numeric and Alphabetic Character Recognition and Signature Verification Using Neural Network

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Journal of Information Security 2018年第3期9卷 209-224页

作者： Md. Hasan Hasnain Nashif Md. Badrul Alam Miah ahsan Habib Autish Chandra Moulik Md. Shariful Islam Mohammad Zakareya Arafat Ullah Md. Atiqur Rahman Md. Al Hasan Department of Information and Communication Technology (ICT) Mawlana Bhashani Science and Technology University (MBSTU) Tangail Bangladesh

Handwritten signature and character recognition has become challenging research topic due to its numerous applications. In this paper, we proposed a system that has three sub-systems. The three subsystems focus on offline recognition of handwritten English alphabetic characters (uppercase and lowercase), numeric characters (0 - 9) and individual signatures respectively. The system includes several stages like image preprocessing, the post-processing, the segmentation, the detection of the required amount of the character and signature, feature extraction and finally Neural Network recognition. At first, the scanned image is filtered after conversion of the scanned image into a gray image. Then image cropping method is applied to detect the signature. Then an accurate recognition is ensured by post-processing the cropped images. MATLAB has been used to design the system. The subsystems are then tested for several samples and the results are found satisfactory at about 97% success rate. The quality of the image plays a vital role as the images of poor or mediocre quality may lead to unsuccessful recognition and verification.

关键词： Signature Handwritten Character Image Processing Feature Extraction Neural Network Recognition

基于计算机视觉的某大厦楼顶桅杆振动识别与分析

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基于计算机视觉的某大厦楼顶桅杆振动识别与分析

How Corporate Social Responsibility Impacts Employee Identification, Psychological Benefit, and Customer Orientation in Hospitality Industry?

第十五届全国振动理论及应用学术会议（NVTA2023）

作者：李先哲黄铭枫王彦博 ahsan Kareem

2021年5月18日至20日期间,深圳某大厦及其楼顶桅杆出现了明显的振动。本研究采用计算机视觉技术,对桅杆振动视频进行了深入分析。实验证明,在相机倾角小(小于20°)且缺少人工标志物的复杂环境中,DAVIM位移测量方法的测量误差保持在1像... 详细信息

2021年5月18日至20日期间,深圳某大厦及其楼顶桅杆出现了明显的振动。本研究采用计算机视觉技术,对桅杆振动视频进行了深入分析。实验证明,在相机倾角小(小于20°)且缺少人工标志物的复杂环境中,DAVIM位移测量方法的测量误差保持在1像素以内。对于桅杆振动视频数据,采用了两种方法,即选取参考点和滤除相机自身振动频率成分(7.60Hz),以修正识别结果。此外,建立了桅杆的有限元模型,结合实际测量数据,对桅杆面内同步反向振动(2.12Hz)和面内同步同向振动(1.95Hz)的振型、频率、振幅等振动特性进行了研究。

关键词：计算机视觉涡激振动 DAVIM

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可持续商业和经济(英文) 2023年第4期6卷 28-38页

作者： Rameesha Abbas ahsan Siddiqui Kashif Saleem Quaid-i-Azam School of Management Sciences Quaid-i-Azam UniversityIslamabad15320Pakistan University of Management and Technology Lahore54770Pakistan Lahore Leeds University Lahore54000Pakistan

The literature supports the notation that corporate social responsibility(CSR)plays a vital role in engaging consumers and establishing strong relationships with the ***,CSR needs to be comprehensively studied as internal marketing to motivate employees to improve customer services by fulfilling their ***,the current study determines the impact of CSR congruence and efficacy on employee-customer identification,psychological benefit,and customer orientation in the hospitality industry of *** data from 276 frontline employees were collected using a purposive sampling technique through self-administered questionnaires and structural equation modeling was used to test the research *** results found that perceived CSR congruence has a stronger impact on employee-customer identification,while CSR efficacy has a relatively stronger relationship with psychological job benefits and customer *** study provides a significant contribution to the extant literature on using CSR as an internal marketing strategy to improve the frontline employees’ability to satisfy external stakeholders,i.e.,customers.

关键词： CSR Employee-customer identification Hospitality industry

It is 2015: What are the best diagnostic and treatment options for Ménière's disease?

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World Journal of Otorhinolaryngology 2016年第1期6卷 1-12页

作者： Safeer Shah Abel Ignatius Syed ahsan Wayne State University School of Medicine Department of Otolaryngology/Head and Neck Surgery Henry Ford Health System

Ménière's disease(MD) is a common cause of recurrent vertigo. Its pathophysiology is still unclear and controversial. The most common histological finding in postmortem temporal bone studies of patients is endolymphatic hydrops(EH). However, not all cases of hydrops are associated with MD and it may represent the end point of various etiologies. The diagnostic criteria for MD have undergone changes during the past few decades. A recent collaboration among specialty societies in United States, Europe and Japan has given rise to a new set of guidelines for the diagnosis and classification of MD. The aim is to develop international consensus criteria for MD that would help improve the quality of data collected from patients. The diagnosis of MD can be difficult in some cases as there is no gold standard for testing. Previous use of audiometric data and electrocochleography are poorly sensitive as screening tools. Recently magnetic resonance imaging as a diagnostic tool for identifying EH has gained popularity in Asia and Europe. Vestibular evoked myogenic potentials are also used but lack specificity. Finally, the treatment for MD has improved with the introduction of intratympanic treatments with steroids and gentamicin as well as less invasive treatment with the Meniett device.

关键词： Ménière's disease Review Pathophysiology Diagnosis Treatment

硫酸根离子对铁在弱碱性溶液中阳极溶解和钝化行为的影响（英文）

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物理化学学报 2015年第6期31卷 1093-1104页

作者：陈俊劼肖茜吕战鹏 HSAN Ejaz 夏小峰刘廷光上海大学材料科学与工程学院材料研究所上海200072 上海大学省部共建高品质特殊钢冶金与制备国家重点实验室上海200072

采用浸泡实验,电化学测试和表面分析技术研究了硫酸根离子浓度对铁在稀碳酸氢钠溶液中开路状态和阳极极化行为的影响.在无硫酸根离子及含有少量硫酸根离子的碳酸氢钠溶液中,铁的开路电位约为(-0.225±0.005)V,并呈现钝化状态,其电化学... 详细信息

采用浸泡实验,电化学测试和表面分析技术研究了硫酸根离子浓度对铁在稀碳酸氢钠溶液中开路状态和阳极极化行为的影响.在无硫酸根离子及含有少量硫酸根离子的碳酸氢钠溶液中,铁的开路电位约为(-0.225±0.005)V,并呈现钝化状态,其电化学阻抗很大,腐蚀速率较低.在含有较高浓度硫酸根离子的碳酸氢钠溶液中,铁的开路电位为(-0.790±0.010)V并呈现活性溶解状态,其电化学阻抗较小,腐蚀速率较高,同时阳极极化曲线上能观察到活化-钝化转变现象.由于铁在含有较高浓度硫酸根离子的碳酸氢钠溶液中处于活化状态,阳极极化曲线上存在数个电流峰.足够高的硫酸根离子浓度会导致铁表面预先形成或转变而成的氧化膜失效.相比于自然曝氧状态,在除氧条件下较低的硫酸根离子浓度即可引起铁在碳酸氢钠溶液中由钝态向活性溶解态的转变.

关键词：铁电化学行为腐蚀失重钝态阳极溶解 X射线光电子能谱电位-pH图