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Search Results: 1 - 10 of 138823 matches for " K Dhakhwa "
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Results of conjunctival autograft in pterygium surgery in Lumbini Eye Instititue, Nepal
K Dhakhwa,S Patel,MK Sharma,SKC Rai,AM Bhari
Journal of Universal College of Medical Sciences , 2014, DOI: 10.3126/jucms.v2i1.10482
Abstract: BACKGROUND: A pterygium is a wedge shaped fibrovascular growth of conjunctiva that extends onto the cornea. Various surgical techniques are used to treat this condition. Conjunctival graft over the bare sclera is one of the techniques used. The present study was done to evaluate the efficacy of autologous conjunctival graft in surgical management of primary and recurrent pterygium. MATERIALS AND METHODS: All the patients who underwent conjunctival autograft surgery for primary and recurrentpterygium from 1st Jan. 2010 to 30th June 2010 were enrolled prospectively. Follow up was done for six months after the surgery. RESULTS: A total of240 patients operated for primary and recurrent pterygium were enrolled in this study. There were 107 (44.6%) male and 133 (55.4%) female with male to female ratio 1: 1.3. Patients' age ranged from 15 to 80 years. Recurrences occurred in 3 ( 1.25%) cases. CONCLUSIONS: Free conjunctival autograft is a safe and effective procedure for prevention of recurrence in pterygium surgery. DOI: http://dx.doi.org/10.3126/jucms.v2i1.10482 ? Journal of Universal College of Medical Sciences (2014) Vol.2(1): 2-6
Clinical profile of toxic keratoconjunctivitis after ocular trauma with insect
S Patel,K Dhakhwa,SKC Rai,B Bhattarai,A Pandey,BP Badhu
Journal of Universal College of Medical Sciences , 2013, DOI: 10.3126/jucms.v1i4.9573
Abstract: INTRODUCTION: Toxic keratoconjunctivitis is a frequently encountered problem in the subspecialty of cornea. Toxic keratoconjunctivitis can occur as a complication of exposure to various substances. Toxic keratoconjunctivitis due to exposure to many chemicals and medications have been well described in the literature. The present study was carried out to explore the clinical profile of toxic keratoconjunctivitis caused by insect an unknown cause in a tertiary care center in Lumbini zone of western region of Nepal. METHODS: It was a prospective observational study conducted in cornea clinic of Lumbini Eye Institute, Bhairahawa, Nepal from 1 October 2012 to 30 September 2013. Institutional approval and informed consent was taken. All the patients presented with toxic keratoconjunctivitis caused by insect or unknown causes were included in the study. Patients with other known causes of toxic keratoconjunctivitis like drugs, chemicals were excluded from the study. Detail clinical history, general physical examination and meticulous ophthalmological examination were carried out in all the subjects as per predesigned pro-forma. Patients were followed up after 3 days, 1 week and 2 weeks after initial presentation. RESULTS: Total 39 patients with toxic keratoconjunctivitis presented in cornea clinic of Lumbini Eye Institute during the study period were enrolled and analyzed. The mean age of the patients was 38.20±15.44 year ranging from 16-75 years. Male were affected more than female. In our study 33 (84.62%) patients were male and only 6 (15.38%) patients were female. Most of patients presented during the month of April and May. Twenty one (53.85%) of our patients noticed some small insects lodged in the eye. Eighteen (56.15%) patients had history of exposure of foreign body but could not identify it as insect. Most of patients noticed exposure of insect or an unknown object in Night (36, 92.31%) and only 3 (7.69%) patients during day time. Mean duration of illness was 2.13±1.19 days ranging from 1 to 5 days. Right eye and left eye were involved equally. Complete healing of lesions occurred in all the patients CONCLUSION: Toxic keratoconjunctivitis caused by insect or unknown foreign body is a frequently encountered problem seen in summer months in a tertiary care center in Lumbini zone of western region of Nepal. With treatment all the patient had good out come in form of complete healing of ocular lesions. DOI: http://dx.doi.org/10.3126/jucms.v1i4.9573 Journal of Universal College of Medical Sciences (2013) Vol.1 No.04: 41-44
The distribution of refractive errors among children attending Lumbini Eye Institute, Nepal
S KC Rai,HB Thapa,MK Sharma,K Dhakhwa,R Karki
Nepalese Journal of Ophthalmology , 2012, DOI: 10.3126/nepjoph.v4i1.5858
Abstract: Introduction: Uncorrected refractive error is an important cause of childhood blindness and visual impairment. Objective : To describe the patterns of refractive errors among children attending the outpatient clinic at the Department of Pediatric Ophthalmology, Lumbini Eye Institute, Bhairahawa, Nepal. Subjects and methods: Records of 133 children with refractive errors aged 5 - 15 years from both the urban and rural areas of Nepal and the adjacent territory of India attending the hospital between September and November 2010 were examined for patterns of refractive errors. The SPSS statistical software was used to perform data analysis. Results: The commonest type of refractive error among the children was astigmatism (47 %) followed by myopia (34 %) and hyperopia (15 %). The refractive error was more prevalent among children of both the genders of age group 11-15 years as compared to their younger counterparts (RR = 1.22, 95 % CI = 0.66 – 2.25). The refractive error was more common (70 %) in the rural than the urban children (26 %). The rural females had a higher (38 %) prevalence of myopia than urban females (18 %). Among the children with refractive errors, only 57 % were using spectacles at the initial presentation. Conclusions: Astigmatism is the commonest type of refractive error among the children of age 5 - 15 years followed by hypermetropia and myopia. Refractive error remains uncorrected in a significant number of children. DOI: http://dx.doi.org/10.3126/nepjoph.v4i1.5858 NEPJOPH 2012; 4(1): 90-95
Study of microbial flora in indwelling catheter, drains, CIVP lines and endotracheal tubes
SB Pradhan,R Dhakhwa,CD Shrestha
Journal of Pathology of Nepal , 2013, DOI: 10.3126/jpn.v3i6.8995
Abstract: Background: The use of indwelling devices like Urinary catheter, Drain tubes, Central intravascular catheter, endotracheal tubes has become routine practice in the medical field. Localized or systematic infection are frequent complications associated with extensive use of these devices, requiring its removal or may even be associated with life threatening consequences. Materials and Methods: Microbiological study was carried out among all the indwelling device samples received from 20th April 2011 to 19th April 2012 at Clinical Microbiology Laboratory, Department of Pathology, Kathmandu Medical College Teaching Hospital. Results: Out of total 205 samples (125 Foley’s catheters, 31 drain tubes, 29 central intravascular catheter lines and 20 endotracheal tubes) received during this study period, 38.4% urinary catheters, 23.33% drain tubes, 6.9% central intravascular catheter lines and 40.0% endotracheal tubes were found to have significant growth. Escherichia coli and Klebsiella were found to be the commonest organisms. Conclusion: The infection rates of indwelling devices used for various reasons are found to be very high. These infections have increased the morbidity and mortality of the hospitalized patients and also increased the duration of hospital stay. Thus aseptic measurements during insertion of these devices periodic change of these devices may help to overcome these complications. DOI: http://dx.doi.org/10.3126/jpn.v3i6.8995 ? Journal of Pathology of Nepal (2013) Vol. 3 , 469-471
Study of AgNOR count and SAPA score in fine needle aspirates of breast lumps
R Dhakhwa,R Jha,G Sayami,HG Shrestha
Journal of Kathmandu Medical College , 2012, DOI: 10.3126/jkmc.v1i1.7248
Abstract: Background: Argyrophilic Nucleolar Organizer Region technique has a potential value in the diagnosis of malignancy and can be used in cases with equivocal and inconclusive cytological picture. The purpose of this study was to evaluate mean Argyrophilic Nucleolar Organizer Region count and Subjective Argyrophilic Nucleolar Organizer Region Pattern Assessment score in fi ne needle aspirates of breast lumps. Materials and Methods: A prospective, cross sectional study consisting of 110 patients (38 malignant and 72 benign) with clinically palpable breast lumps who underwent fi ne needle aspiration followed by subsequent histopathologic examination were included. Fine Needle Aspiration smears were studied by conventional methods and silver staining for Argyrophilic Nucleolar Organizer Regions. Histopathologic diagnosis was taken as the gold standard. Results: Argyrophilic Nucleolar Organizer Region count and Subjective Argyrophilic Nucleolar Organizer Region Pattern Assessment score were helpful in differentiating benign from malignant lesions. Mean Argyrophilic Nucleolar Organizer Region count and Subjective Argyrophilic Nucleolar Organizer Region Pattern Assessment score were 2.63 ± 1.36 and 6.26 ± 1.19 respectively in benign lesions while they were 8.42 ± 2.53 and 10.05 ± 2.22 respectively in malignant lesions. With few exceptions, cases with high counts had high scores. Conclusion: Mean Argyrophilic Nucleolar Organizer Region AgNOR count and Subjective Argyrophilic Nucleolar Organizer Region Pattern Assessment score provide useful information regarding cellular proliferation. Both count and score have comparable diagnostic potential but the latter is a more convenient and rapid method for Argyrophilic Nucleolar Organizer Region evaluation. DOI: http://dx.doi.org/10.3126/jkmc.v1i1.7248 Journal of Kathmandu Medical College, Vol. 1, No. 1, Issue 1, Jul.-Sep., 2012 pp.3-9
The Constrained Mean-Semivariance Portfolio Optimization Problem with the Support of a Novel Multiobjective Evolutionary Algorithm  [PDF]
K. Liagkouras, K. Metaxiotis
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.67B005

The paper addresses the constrained mean-semivariance portfolio optimization problem with the support of a novel multi-objective evolutionary algorithm (n-MOEA). The use of semivariance as the risk quantification measure and the real world constraints imposed to the model make the problem difficult to be solved with exact methods. Thanks to the exploratory mechanism, n-MOEA concentrates the search effort where is needed more and provides a well formed efficient frontier with the solutions spread across the whole frontier. We also provide evidence for the robustness of the produced non-dominated solutions by carrying out, out-of-sample testing during both bull and bear market conditions on FTSE-100.

Design of a Cantilever - Type Rotating Bending Fatigue Testing Machine  [PDF]
K. K. Alaneme
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2011, DOI: 10.4236/jmmce.2011.1011078
Abstract: This research is centered on the design of a low–cost cantilever loading rotating bending fatigue testing machine using locally sourced materials. The design principle was based on the adaptation of the technical theory of bending of elastic beams. Design drawings were produced and components/materials selections were based on functionality, durability, cost and local availability. The major parts of the machine: the machine main frame, the rotating shaft, the bearing and the bearing housing, the specimen clamping system, pulleys, speed counter, electric motor, and dead weights; were fabricated and then assembled following the design specifications. The machine performance was evaluated using test specimens which were machined in conformity with standard procedures. It was observed that the machine has the potentials of generating reliable bending stress – number of cycles data; and the cost of design (171,000 Naira) was lower in comparison to that of rotating bending machines from abroad. Also the machine has the advantages of ease of operation and maintenance, and is safe for use.
Wireless Sensor Network Lifetime Enhancement Using Modified Clustering and Scheduling Algorithm  [PDF]
K. Ramesh, K. Somasundaram
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.78154
Abstract: Random distribution of sensor nodes in large scale network leads redundant nodes in the application field. Sensor nodes are with irreplaceable battery in nature, which drains the energy due to?repeated collection of data and decreases network lifetime. Scheduling algorithms are the one way?of addressing this issue. In proposed method, an optimized sleep scheduling used to enhance the?network lifetime. While using the scheduling algorithm, the target coverage and data collection?must be maintained throughout the network. In-network, aggregation method also used to remove the unwanted information in the collected data in level. Modified clustering algorithm?highlights three cluster heads in each cluster which are separated by minimum distance between them.?The simulation results show the 20% improvement in network lifetime, 25% improvement in?throughput and 30% improvement in end to end delay.
K. Метешк?н,Х. Раковський
Information Technologies and Learning Tools , 2010,
Abstract: The results of Bologna process are investigated. It is underlined that theoretical – methodological bases of the Bologna process have been poorly developed. A scheme for master’s education both on requirements of separate states, and on requirements of EU is offered. Досл джуються п дсумки Болонського процесу. П дкреслю ться, що слабко розроблен теоретико-методолог чн основи Болонського процесу. Пропону ться схема навчання маг стр в, як для потреб окремих держав, так для потреб С.
Х.В. Раковський,Н.Х. Раковська,K.О. Метешк?н
Information Technologies and Learning Tools , 2010,
Abstract: The process and phenomena connected with the initiation of new methodological paradigm of the scientific and educational management in Ukraine has been investigated. The paradigm is conditioned by global tendencies of informatization, development of communicative means and integrative processes in education and science У статт досл джен процеси та явища, пов’язан з зародженням в Укра н ново методолог чно парадигми управл ння осв тою наукою, яка обумовлена глобальними тенденц ями нформатизац , розвитком комун кац йних засоб в, а також нтеграц йними процесами в осв т та науц .
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