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Journal of Forestry Research 2016年第6期27卷 1385-1390页

作者： Tika khan imtiaz ahmed khan Abdul Rehman Nisar ahmed Integrated Mountain Area Research Centre Karakoram International University Department of Biological Sciences Karakoram International University Centre of Agriculture Biochemistry and Biotechnology University of Agriculture Faisalabad

Berberis species medicinal plants in Pakistan are endangered, high-value with important eco-cultural, commercial and livelihood roles in mountain communities. To assess the geographical distribution of Berberis species across the Karakoram Mountain Ranges in Pakistan, we used IUCN Red List Categories and Criteria （2001） to calculate the extent of occurrence （EOO, 〈100 km^2） and the area of occupancy （AOO, 〈10 km^2） of Berberis pseudumbellata subsp, pseudumbellata and B. pseudumbellata subsp. gilgitica. Overgrazing and habitat loss were key population- limiting factors. The two subspecies had contrasting responses to temperature, elevation, precipitation and insect susceptibility. B. pseudumbellata subsp, gilgitica is endemic to Gilgit-Baltistan and grows in single-cropping zone （ar- eas 〉 200 m a.s.1.）. Status evaluation revealed that both subspecies meet the criteria set for critically endangered species. Prolonged disregard of its declining population trend might lead to its extinction; therefore, integrated con- servation efforts are necessary.

关键词： Berberis Ecological zonation Critically endangered Extent of occurrence Karakoram Occupation area Spatial distribution

Analysis of Serum Cholesterol Level in Goats Breeds in Gilgit-Baltistan Area of Pakistan

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Journal of Agricultural Science and Technology(A) 2013年第4期3卷 302-306页

作者： Akbar khan Shama Rehman Raja Imran imtiaz ahmed khan Karim Dad Pitafi Department of Biological Sciences Karakoram International University Gilgit Pakistan

In goats （Capra hircus） and other ruminants cholesterol is naturally produced in liver and intestinal walls. It is also acquired from supplemental food. Cholesterol is a source of energy and is a precursor of steroid hormones, bile acids and also required for normal cell function. The level of serum cholesterol is generally lower in goat breeds as compared to other cattles. The present study was conducted to estimate level of serum cholestrol in goats （both male and female） commonly reraed in three areas of Gilgit-Baltistan province of Pakistan viz; Ghizer, Baltistan and Hunza-NagarRandom samples of blood were taken from 440 goats （181 male and 259 female） and serum was obtained by centrifugation. Quantity of cholesterol in mg deciliter＂l of serum was determined by analyzing the serum using Micro-lab 300. Distrci wise comparison showed that cholestrol level in the samples from the three districts was highly significant. While the differences between the gender （male and female goats） from the same district were non-significant at P 〈 0.05. Ghizer breed is suggested to be better for human consumption because it had the lowest chlestrol level. The paper aslo discuss the effect of pastures feeding on the level of cholesterol in the serum of goats. Present findings will help formulate better strategies for the imporvement of goat breeds in the area.

关键词： Goat cholesterol level serum Gilgit-Baltistan Pakistan

Power budget analysis of dual/single feeder fiber WDMPON

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Optoelectronics Letters 2014年第2期10卷 137-139页

作者： Waqas A.imtiaz Yousaf khan Affaq Qamar Jehanzeb khan Noaman ahmed khan Department of Electrical Engineering IQRA National University Department of Electronics and Telecommunications Politecnico di Torino

This paper investigates how to reduce the cost of wavelength division multiplexing passive optical network(WDMPON) by comparing the transmission performance of bidirectional single feeder fiber and dual feeder fiber. Comparison is performed on the basis of power budgeting and cost of both arrangements. Simulation results using Optisystem show that the performance of a single feeder fiber is almost equivalent to that of a dual feeder fiber. Therefore, the single feeder fiber WDM-PON can efficiently replace the dual feeder fiber WDM-PON with the minimum deterioration in system performance and reduction in cost.

关键词： WDM-PON 功率预算光纤馈线性能降低无源光网络低成本波分复用

Parametic Model for Optimization of Battery Capacity and Power Transmitters of On-line Electric Vehicles in Closed/Open Environments

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CSEE Journal of Power and Energy Systems 2023年第1期9卷 185-196页

作者： Fatima Nisar Syed Haider imtiaz Alam Asad Waqar Toqeer ahmed Mudassar Usman Department of Electrical Engineering School of Engineering&Applied Sciences(BSEAS)Bahria UniversityIslamabadPakistan Department of Centre for Advanced Electronics and Photovoltaic Engineering(CAEPE) International Islamic Universityand School of Interdisciplinary Engineering and Science(SINES)National University of Science and Technology(NUST)IslamabadPakistan

An on-line electric vehicle(OLEV)uses a wireless charging phenomenon,in which power transmitters are installed beneath the road and the OLEV’s battery is charged *** paper deals with the optimization of two key economic and design parameters,i.e.,the size of the battery and the power transmitters allocation.A complete model configuration of the OLEV system,including the vehicle design and power transmitter,is implemented using MATLAB/*** battery’s state of charge(SOC)rises and drops according to the vehicle’s velocity and power collection and *** mixed integer programming(MIP)model is used for cost ***,with the help of the SOC graph and MIP model,the battery size and the number of power transmitters,along with their placements,are *** proposed model is applicable to both closed and open environments as it accepts both regulated and deregulated *** test cases are performed for this *** first test case deals with regulated velocity for which we have applied the KAIST campus OLEV’s velocity along with its 13 kWh battery size and 4 power transmitters,and then applied the suggested solution with the same velocity and route i.e.,8 power transmitters with shorter lengths and reduced battery size(3.25 kWh;one-fourth of the first case).SOC is found within limits at the end of the route,saving$1600 and validating the proposed model in this *** the second test case,we use deregulated velocity and optimize both parameters,using the same approach.

关键词： Closed and open environments mixed integer programming on-line electrical vehicle power transmitters state of charge wireless charging

Screening for arboviruses in healthy blood donors: Experience from Karachi, Pakistan

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Virologica Sinica 2022年第5期37卷 774-777页

作者： Moiz ahmed khan Kehkashan imtiaz Humaira Shafaq Joveria Farooqi Mohammad Hassan Afia Zafar Maureen T.Long Kelli L.Barr Erum khan Clinical Microbiology Laboratory Department of Pathology&Lab MedicineAga Khan UniversityKarachi 74800Pakistan Blood Bank Haematology&Transfusion MedicineDepartment of Pathology&Lab MedicineAga Khan UniversityKarachi 74800Pakistan Comparative Diagnostic and Population Medicine University of FloridaGainesville FL32611USA Center for Global Health and Infectious Disease Research University of South FloridaTampa FL33620USA

Dear Editor,Arboviruses of medical importance are maintained in nature in enzootic cycles between haematogenous vectors and susceptible vertebrate hosts(Huang et al.,2019).The rapid increase in human populations around the globe and the associated urbanization are creating irreversible damage to the ecosystem,giving rise to many problems including emergence and intensification of the vector borne diseases(Sutherst,2004).Among vector borne diseases,mosquito-borne arboviruses including dengue virus(DENV),West Nile virus(WNV),Japanese Encephalitis virus(JEV)and Zika virus(ZIKV)are rapidly emerging in the affected regions of the world(Palmer et al.,2011).

关键词： maintained irreversible Pakistan

Fault Detection and Identification Using Deep Learning Algorithms in Induction Motors

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Computer Modeling in Engineering & Sciences 2022年第11期133卷 435-470页

作者： Majid Hussain Tayab Din Memon imtiaz Hussain Zubair ahmed Memon Dileep Kumar Department of Electronic Engineering Quaid-e-Awam University of Engineering Science and TechnologyNawabshah67480Pakistan NCRA Condition Monitoring Systems Lab Mehran University of Engineering and TechnologyJamshoro76062Pakistan Department of Electronic Engineering Mehran University of Engineering and TechnologyJamshoro76062Pakistan Design and Creative Technology Torrens University AustraliaMelbourneAustralia Department of Electronics and Power Engineering Pakistan Navy Engineering College NUSTKarachi75350Pakistan

Owing to the 4.0 industrial revolution condition monitoring maintenance is widely accepted as a useful approach to avoiding plant disturbances and ***,Motor Current Signature Analysis(MCSA)is widely reported as a condition monitoring technique in the detection and identification of individual andmultiple Induction Motor(IM)***,checking the fault detection and classification with deep learning models and its comparison among them selves or conventional approaches is rarely reported in the ***,in this work,wepresent the detection and identification of induction motor faults with MCSA and three Deep Learning(DL)models namely MLP,LSTM,and ***,we have developed the model of Squirrel Cage induction motor in MATLAB and simulated it for single phasing and stator winding faults(SWF)using Fast Fourier Transform(FFT),Short Time Fourier Transform(STFT),and Continuous Wavelet Transform(CWT)to detect and identify the healthy and unhealthy conditions with phase to ground,single phasing and in multiple fault conditions using Motor Current Signature *** faults impact on stator current is presented in the time and frequency domain(i.e.,power spectrum).The simulation results show that the scalogram has shown good results in time-frequency analysis for fault and showing its impact on the energy of current during individual fault and multiple fault *** is further investigated with three deep learning models(i.e.,MLP,LSTM,and 1D-CNN)for checking the fault detection and identification(i.e.,classification)improvement in a three-phase induction *** simulating the three-phase induction motor in various healthy and unhealthy conditions in MATLAB,we have collected current signature data in the time domain,labeled them accordingly and created the 50 thousand samples dataset for DL *** the DL models are trained and validated with a suitable number of architecture *** simulation,the multiclass confusion

关键词： Condition monitoring motor fault diagnosis stator winding faults deep learning signal processing

ROLE OF ACULASER THERAPY IN CEREBRAL PALSY CHILDERN (INITIAL DATA & RESULTS)

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World Journal of Acupuncture-Moxibustion 2004年第1期14卷 18-25页

作者： Shahzad Anwar Malik Mohammad Nadeem khan imtiaz ahmed Abid Hareef Awan Anwar Shah's First C.P.& Paralysis Clinic and Research Center Children Hospital & Institute of Child HealthSheikh Zayed HospitalAnwar Shah's First C.P.& Paralysis Clinic and Research Center 17 C Main Boulevard Faisal Town LahoreLahoreLahore Pakistan 17 C Main Boulevard Faisal Town Lahore

A single, open and non-comparative study was conducted at Anwar Shah’s First C.P. & Paralysis Clinic and Research Center to evaluate the effects of Aculaser (acupoint-laser) Therapy for children suffering from cerebral palsy (CP) of various types. These children were further classified according to their major complaints. Analysis of the data indicated that 11 children with severe spasticity and stiffness all showed marked improvement (100% success rate); of the 8 children with epileptic fits, 6 patients had a significant reduction in the intensity, frequency and duration of epileptic fits, while the rest 2 cases showed no any improvement or aggravation (75% success rate); out of 5 children with cortical blindness, 2 cases showed complete recovery of vision and 3 had marked improvement (40% cure rate); out of 4 children with hearing difficulties, 2 showed marked improvement (50% success rate); out of 14 children with aphasis, 8 showed improvement (57% improvement rate). Results of this study show that Aculaser Therapy has a high improvement rate of CP children, not only improving the spasticity and stiffness but also the cortical blindness, epilepsy, deafness and speech.

关键词： Infantile cerebral palsy Acupoint-laser therapy Clinical observation

Oval-Shaped Radiographic Opacity Mimicking a Lung Mass

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World Journal of Cardiovascular Diseases 2022年第9期12卷 439-443页

作者： Farid khan Muhammad imtiaz Keyoor Patel Owais ahmed Rasha Aurshiya Pranava Ganesh UHS Heart & Vascular Institute Wilson Medical Center Johnson City NY USA UHS Pulmonology & Critical Care Wilson Medical Center Johnson City NY USA

Phantom tumor of the lung is an infrequent presentation of volume overload in congestive heart failure. This finding is often mistaken for a lung mass that leads to extensive workup and unnecessary treatments. A 75-year-old male was evaluated for a right lower lobe rounded opacity. A transthoracic echocardiogram showed normal left ventricular function. Biopsy of the mass was unremarkable. Patient was managed with diuretics, and subsequent lung imaging revealed resolution of the opacity.

关键词： Dyspnea Lung Mass Interlobar Effusion Diuresis Heart Failure

晚期视网膜母细胞瘤53例的临床挑战(英文)

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国际眼科杂志 2009年第2期9卷 227-230页

作者： Partab Rai imtiaz Ali Shah Ashok kumar Narsani Mahesh Kumar Lohana Muhammad khan Memon Manzoor ahmed Memon Chandka医学院附属医院眼科巴基斯坦Larkana Liaquat大学眼科医院眼科巴基斯坦海德拉巴 Liaquat大学眼科医院诊断研究实验室巴基斯坦海德拉巴 Kalsoom Bai Valieka医院眼科巴基斯坦卡拉奇 Liaquat大学医学及健康科学院病理科巴基斯坦Jamshoro

目的:评价肿瘤的位置、大小、组织学以及复发率。方法:前瞻性研究Larkana的Chandka医学院附属医院眼科的53例组织学诊断为视网膜母细胞瘤患者,肿瘤侵及眼球、眼眶、颅内以及其他组织。为研究肿瘤广泛性,检查包括:眼眶X线片,眼球B超,眼... 详细信息

目的:评价肿瘤的位置、大小、组织学以及复发率。方法:前瞻性研究Larkana的Chandka医学院附属医院眼科的53例组织学诊断为视网膜母细胞瘤患者,肿瘤侵及眼球、眼眶、颅内以及其他组织。为研究肿瘤广泛性,检查包括:眼眶X线片,眼球B超,眼眶及头颅CT扫描/MRI,全骨扫描,胸部前后位X线片,腹部B超,腰椎穿刺,全血细胞计数,包括肝肾功能检查的血生化,根据肿瘤的位置、大小、复发及转移选择包括手术、局部放疗、系统化疗的治疗方案。有局部和系统转移的患者,由Larkana的核医学和放疗机构的肿瘤专家进行局部放疗和系统化疗。术后1,3,6,12mo复查随访,随后5a及5a以上,1a复查一次。评估肿瘤的位置、大小、组织类型和复发率。结果:患者53例,年龄8mo^8岁。男25例(47%),女28例(53%)。肿瘤的眼别,左眼25例(47%),右眼19例(36%),双眼9例(17%)。患者的首发症状,斜视3例(6%),假性眼内炎4例(8%),眼眶炎性假瘤6例(11%),转移性包块7例(13%),蕈样生长的包块8例(15%),白瞳征12例(23%),眼眶浸润13例(25%)。行单纯眼球摘除术19例(36%),行眼球摘除及改良型眶内容物剜除术并局部放疗和系统化疗19例(36%),行眼球摘除及完全型眶内容物剜除术并局部放疗和系统化疗15例(28%)。肿瘤的组织类型,含大量染色质的高分化视网膜母细胞瘤25例(47%),高度未分化视网膜母细胞瘤28例(53%)。首次手术后,由于手术切除点以上视神经受累,眼眶浸润和系统转移,发生复发和转移37例(70%)。结论:儿童红眼或白瞳征在确诊之前应怀疑视网膜母细胞瘤,应该及时经眼科专家检查,因为患者在肿瘤初期的早期表现提示会降低肿瘤的扩散、复发和死亡率。

关键词：晚期症状视网膜母细胞瘤挑战

Diagnostic Evaluation of GeneXpert MTB/RIF Assay for the Detection of Rifampicin Resistant Mycobacterium tuberculosis among Pulmonary Tuberculosis Patients in Bangladesh

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Journal of Tuberculosis Research 2016年第1期4卷 55-60页

作者： Hosne Jahan Sanya Tahmina Jhora Zakir H. Habib Md. Abdullah Yusuf imtiaz ahmed Aleya Farzana Rafia Parveen Department of Pathology Shaheed Suhrawardy Medical College Dhaka Bangladesh Department of Microbiology Mugda Medical College Dhaka Bangladesh Department of Microbiology Institute of Epidemiology Disease Control & Research Dhaka Bangladesh Department of Microbiology National Institute of Neurosciences & Hospital Dhaka Bangladesh Department of Microbiology Sir Salimullah Medical College Dhaka Bangladesh Department of Radiology and Imaging Delta Medical College Dhaka Bangladesh

Background: The emergence of multidrug resistant tuberculosis (MDR-TB) and extensively drug- resistant tuberculosis (XDR-TB) has highlighted the need for early accurate detection and drug susceptibility. Objective: The purpose of the present study was to evaluate the accuracy of GeneX-pert MTB/RIF assay for the detection of Mycobacterium tuberculosis and rifampicin resistance. Methodology: This cross sectional study was done in the Department of Microbiology at Sir Salimullah Medical College, Dhaka and National Institute of Chest Disease & Hospital (NIDCH), Dhaka during the period of January 2014 to December 2014 for a period of 1 (one) year. Sputum samples from suspected MDR-TB patients were collected by purposive sampling technique from OPD of Sir Salimullah Medical College (SSMC) and NIDCH. Microscopy, liquid culture in liquid MGIT 960 media and GeneXpert MTB/RIF were done for MTB diagnosis and detection of rifampicin resistance. MGIT 960 media were also used for determination of drug resistance. Result: Liquid culture yielded higher growth (68%) from 100 samples while GeneXpert MTB assay showed similar result (67% positive and 33% negative). Drug susceptibility test in MGIT 960 media showed that out of 68 positive cases Rifampicin resistant cases were 15 (22.05%) whereas GeneXpert MTB assay detected 14 (20.89%) were Rifampicin resistant out of 67 MTB positive samples. When compared to liquid culture the calculated sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV) and accuracy of GeneXpert MTB were 98.52%, 100%, 96.96%, 100% and 99%. Conclusion: GeneXpert MTB/RIF assay is high detection rate of pulmonary tuberculosis and multidrug resistant tuberculosis.

关键词： MDR-TB GeneXpert MTB/RIF Liquid Culture Pulmonary Tuberculosis