oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2018 ( 6 )

2017 ( 14 )

2016 ( 14 )

2015 ( 157 )

Custom range...

Search Results: 1 - 10 of 1885 matches for " Tran LN "
All listed articles are free for downloading (OA Articles)
Page 1 /1885
Display every page Item
Validation study of a computer-based open surgical trainer: SimPraxis® simulation platform
Tran LN,Gupta P,Poniatowski LH,Alanee S
Advances in Medical Education and Practice , 2013,
Abstract: Linh N Tran,1 Priyanka Gupta,2 Lauren H Poniatowski,2 Shaheen Alanee,3 Marc A Dall’Era,4 Robert M Sweet21Department of Internal Medicine, Loma Linda University, Loma Linda, CA, 2Department of Urology, University of Minnesota, Minneapolis, MN, 3Urology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, 4Department of Urology, University of California, Davis, CA, USABackground: Technological advances have dramatically changed medical education, particularly in the era of work-hour restrictions, which increasingly highlights a need for novel methods to teach surgical skills. The purpose of this study was to evaluate the validity of a novel, computer-based, interactive, cognitive simulator for training surgeons to perform pelvic lymph node dissection (PLND).Methods: Eight prostate cancer experts evaluated the content of the simulator. Contextual aspects of the simulator were rated on a five-point Likert scale. The experts and nine first-year residents completed a simulated PLND. Time and deviations were logged, and the results were compared between experts and novices using the Mann–Whitney test.Results: Before training, 88% of the experts felt that a validated simulator would be useful for PLND training. After testing, 100% of the experts felt that it would be more useful than standard video training. Eighty-eight percent stated that they would like to see the simulator in the curriculum of residency programs and 56% thought it would be useful for accreditation purposes. The experts felt that the simulator aided in overall understanding, training indications, concepts and steps of the procedure, training how to use an assistant, and enhanced the knowledge of anatomy. Median performance times taken by experts and interns to complete a PLND procedure on the simulator were 12.62 and 23.97 minutes, respectively. Median deviation from the incorporated procedure pathway for experts was 24.5 and was 89 for novices.Conclusion: We describe an interactive, computer-based simulator designed to assist in mastery of the cognitive steps of an open surgical procedure. This platform is intuitive and flexible, and could be applied to any stepwise medical procedure. Overall, experts outperformed novices in their performance on the trainer. Experts agreed that the content was acceptable, accurate, and representative.Keywords: simulation, surgical education, training, simulator, video
Validation study of a computer-based open surgical trainer: SimPraxis simulation platform
Tran LN, Gupta P, Poniatowski LH, Alanee S, Dall’Era MA, Sweet RM
Advances in Medical Education and Practice , 2013, DOI: http://dx.doi.org/10.2147/AMEP.S38422
Abstract: lidation study of a computer-based open surgical trainer: SimPraxis simulation platform Original Research (322) Total Article Views Authors: Tran LN, Gupta P, Poniatowski LH, Alanee S, Dall’Era MA, Sweet RM Published Date March 2013 Volume 2013:4 Pages 23 - 30 DOI: http://dx.doi.org/10.2147/AMEP.S38422 Received: 22 September 2012 Accepted: 05 December 2012 Published: 20 March 2013 Linh N Tran,1 Priyanka Gupta,2 Lauren H Poniatowski,2 Shaheen Alanee,3 Marc A Dall’Era,4 Robert M Sweet2 1Department of Internal Medicine, Loma Linda University, Loma Linda, CA, 2Department of Urology, University of Minnesota, Minneapolis, MN, 3Urology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, 4Department of Urology, University of California, Davis, CA, USA Background: Technological advances have dramatically changed medical education, particularly in the era of work-hour restrictions, which increasingly highlights a need for novel methods to teach surgical skills. The purpose of this study was to evaluate the validity of a novel, computer-based, interactive, cognitive simulator for training surgeons to perform pelvic lymph node dissection (PLND). Methods: Eight prostate cancer experts evaluated the content of the simulator. Contextual aspects of the simulator were rated on a five-point Likert scale. The experts and nine first-year residents completed a simulated PLND. Time and deviations were logged, and the results were compared between experts and novices using the Mann–Whitney test. Results: Before training, 88% of the experts felt that a validated simulator would be useful for PLND training. After testing, 100% of the experts felt that it would be more useful than standard video training. Eighty-eight percent stated that they would like to see the simulator in the curriculum of residency programs and 56% thought it would be useful for accreditation purposes. The experts felt that the simulator aided in overall understanding, training indications, concepts and steps of the procedure, training how to use an assistant, and enhanced the knowledge of anatomy. Median performance times taken by experts and interns to complete a PLND procedure on the simulator were 12.62 and 23.97 minutes, respectively. Median deviation from the incorporated procedure pathway for experts was 24.5 and was 89 for novices. Conclusion: We describe an interactive, computer-based simulator designed to assist in mastery of the cognitive steps of an open surgical procedure. This platform is intuitive and flexible, and could be applied to any stepwise medical procedure. Overall, experts outperformed novices in their performance on the trainer. Experts agreed that the content was acceptable, accurate, and representative.
A Semantic Analysis of the Language of Advertising
LN Emodi
African Research Review , 2011,
Abstract: Semantics is the study of meaning system of a language and its approaches vary widely. In one view, meaning is the relationship between language and the external world (referential or denotative meaning), between a word and the concept it stands for. In another, it involves the mental state of the speaker, as reflected in a range of personal, emotive overtones (affective or connotative meaning). The uniqueness of the choice of words makes the language of advertising a specialized field of study. This paper presents an analytical study of the language features of English advertisements at a semantic level. In order to conduct a data-driven study, the writer has built a corpus of over 20 English advertisements. Through the detailed survey of allthe advertisements, the semantic features of the language of advertising are summarized and possible conclusions are given in the light of effectiveness of advertising. After a brief introduction to semantics and advertising language, the paper is focused on the linguistic realizations in English advertising from the semantic perspective. In the analysis, the use of connotative meaning ofwords, adjectives, coined words, mis-pelt words, repetition, metaphoric use of words, punning, non-existing words, the use of ambiguous statements are discussed to reveal fuzzy nature that are used by advertisers to achieve their persuasive ends. It goes further to treat the semiotic analysis of the language of advertising. The paper is then concluded with a brief summary. It is hoped that the paper can shed light on the semantic features of language of advertisements and also provide help to copywriters and English learners.
The challenge of fracture management in osteoporotic bones
LN Gakuu
East African Orthopaedic Journal , 2010,
Abstract: Objective: To determine the types of fractures encountered in osteoporotic patients and assess the functional outcome of these fractures. Also suggest change of their management and to suggest preventive interventions. Design: A retrospective analytical 10 years study between 1998 and 2007. Setting: The patients were treated at three private hospitals in Nairobi, Kenya. Patients and methods: Consecutive files of traceable patients who were treated for osteoporotic fractures from January 1998 to December 2007. The demographic data, investigations, management methods and functional outcomes of the treatment were determined. The data collected was analysed using SPSS 17.0 windows. Results: Sixty patients were available for review. Forty five were females while 15 were males, giving a F:M ration of 3:1. There were 14 vertebral fractures, 15 hip fractures (5 neck fractures intra-capsular) and 10 extra capsular)., 5 fractures of the distal wrist and 8 humeral fractures, 4 rib fractures, 6 pelvic fractures, 2 sternal fractures and 6 tibial fractures. Twenty six (40%) of the above fractures namely the vertebral, ribs, pelvis and sternum were treated conservatively while 34 fractures (60%) were treated by various methods of internal fixation. All were old patients aged 60 to 101 years (Mean 75 years.) The overall results of the surgery was unsatisfactory in 13(38%) due to metal pull out, screw loosening, periprosthetic fractures, none union seen in patients of hip, humerus, tibia fractures. Twenty one patients (62%) had good outcome. Conclusion: Osteoporotic fractures are a challenge to orthopaedic and trauma surgeons due to unpredictable results of surgery in the elderly patients. Recommendations: It is suggested to make awareness among health workers especially the orthopaedic and trauma surgeons, nurses and physiotherapists so as to put preventive measures in place. As regards operative management careful planning as team work and use of newer techniques, pharmaceuticals like diphosphonates to assist in fracture healing and use of augmentation techniques is worthwhile considering. Kenya Orthopaedic Association (K.O.A) formulate a policy for management of osteoporotic fractures in our local set up. East African Orthopaedic Journal, Vol. 4: March 2010
Problems of Usage Labelling in English Lexicography
LN Sakwa
Lexikos , 2011,
Abstract: Landau (1991: 217) stipulates that 'usage refers to any or all uses of language'. It is the study of good, correct, or standard uses of language as distinguished from bad, incorrect, and nonstandard uses of language. Usage may also include the study of any limitations on the method of use, whether geographic, social or temporal. Basically it alerts users that certain terms should not be uncritically employed in communication. This article discusses the treatment of usage in English lexicography. It analyses the labelling practices in six monolingual English dictionaries namely: the Oxford Advanced Learner's Dictionary (OALD), the Macmillan English Dictionary (MED), the Longman Dictionary of Contemporary English (LDOCE), the Cambridge International Dictionary of English (CIDE), the World Book Dictionary (WBD) and the New Shorter Oxford English Dictionary (NSOED). Discrepancies in the contextual usage labelling in the dictionaries were established and are discussed.
Anterior Cruciate Reconstruction Using Bone-patellar Ligament – Bone Autograft
LN Gakuu
East African Orthopaedic Journal , 2007,
Abstract: Background: Injuries to ligaments of knee are common in our society especially in the young athletes and sports men participating in football, volleyball, rugby etc. Tears of the anterior cruciate ligament (ACL) leads to knee instability which leads to inability to participate in sports. In the none athletes ACL injury tends to decline in their level of daily activity. This is a study of ACL tears seen and managed by the author over a long period along with scientific data of clinical presentations, diagnosis, associated injuries, the ACL repair, rehabilitation protocol and the overall outcome. Objective: To review the authors experience of patients with anterior cruciate ligament tears who have been treated by bone-patellar tendon-bone autografts. That was to be achieved through clinical, radiological, athroscopy and extensive rehabilitation programme and arthroscopic review after one year follow-up. Setting: Menelik Hospital and the Nairobi Hospital. Methods: Thirty five patients with anterior cruciate ligament tear in one knee and a normal contralateral knee were evaluated and followed up for six years. Clinical history, physical evaluation, X-ray and athroscopies were done to rule out concomitant meniscal lesions and facilitate their treatment accurately. Follow up arthroscopy; physical examinations by Lachman test, pivot test and anterior drawer test were done. Subjective and objective data were obtained and reviewed to assess final outcome. Results: A total of 35 patients were seen and treated. Only 25 patients were available having been followed up fully. There were 18 males and seven females giving a male to female ratio of 2:1. The injuries were unilateral 18 (72%) on the right and seven (28%) on the left. Initial Lachman”s test was graded at 2 and 3 while anterior drawers test and pivot test at 2 and 3 respectively in all patients. Post operatively these improved to grade zero with negative pivot test in all patients. The subjective results were excellent and good in 80% of the patients, while the objective were 68% . Follow up arthroscopy showed a stable ligament at one year while follow up X-ray showed mild arthrosis. A few complications occurred with one infection and calcification of ligament in two patients, arthrofibrosis in two patients. Conclusion: This study is of clinical relevance as it shows alleviation of pain after surgical treatment of the torn ACL which has been described as the stabiliser of the knee and guardian of the Meniscus.
Video laryngoscopy in paediatric anaesthesia in South Africa
LN Nienaber
Southern African Journal of Anaesthesia and Analgesia , 2011,
Abstract: This article provides a summary of the types of video laryngoscopes available in South Africa, and highlights some interesting paediatric cases in which video laryngoscopes were used at the Steve Biko Academic Hospital, Pretoria. South Afr J Anaesth Analg, 2011;17(6):363-368
Some Examples to Show that Objects be Presented by Mathematical Equations  [PDF]
The Minh Tran
American Journal of Computational Mathematics (AJCM) , 2012, DOI: 10.4236/ajcm.2012.23025
Abstract: We have often heard remarks such as “We can plot graphs from the mathematical equations”, including equations of lines, equations of curves, and equations of invisible and visible objects. Actually, we can present each object by mathematical equation and we can plot graphs from equations. Equations not only show visible objects but also can show invisible objects such as wave equations in differential equations. In fact, the change of equations is also to conduce the change of objects and phenomena. This paper presents mathematical equations, methods to plot the graphs in 2D and 3D space. The paper is also a small proof of this conclusion have been provided and addressing visualization problem for any object. The novelty of this paper presents some special equations of objects and shows the ideas to build objects from equations.
Green Tea: A Potential Alternative Anti-Infectious Agent Catechins and Viral Infections  [PDF]
Jennifer Tran
Advances in Anthropology (AA) , 2013, DOI: 10.4236/aa.2013.34028
Abstract:

Tea is the second most consumed beverage in the world, following water. Black, oolong, and green tea are products of a perennial tree or shrub called Camellia sinensis. Camellia sinensis is native to Mainland China and is referenced in Chinese literature at least 5000 years ago. Since its discovery, green tea has been heralded as having several health benefits associated with its consumption. Traditionally, green tea has been used for a variety of medicinal purposes, such as the prevention and treatment of a variety of cancers, mental alertness, weight loss, lowering cholesterol level, and UV protection. Studies have shown that catechins, the polyphenols found in tealeaves, are effective as anti-infectious agents by affecting the infection process instead of specifically targeting the virus. This treatment strategy has the potential of reducing the prevalence of drug-resistant viruses and the reliance on anti-viral drug therapies. This paper will explore the efficacy of green tea in preventing infections by the hepatitis B and C, influenza and human immunodeficiency virus.

The effect of errors in the economic weights on the accuracy of selection indexes
WM Vandepitte, LN Hazel
Genetics Selection Evolution , 1977, DOI: 10.1186/1297-9686-9-1-87
Abstract:
Page 1 /1885
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.