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Search Results: 1 - 10 of 3873 matches for " Approach "
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Lower Blepharoplasty Review, Transcon-junctival vs. Transcutaneous Approach  [PDF]
Alberto Rancati, Patricio Jacovella, Andrea Edoardo Zampieri, Julio Dorr, Mariana Daniele, Santiago Liedtke, Agustin Rancati
Modern Plastic Surgery (MPS) , 2015, DOI: 10.4236/mps.2015.51001
Abstract: Currently in lower blepharoplasty, the transconjunctival approach indication has been limited to young patients without skin excess and prominence of bags; in our practice this access has become the preferred technique in most of our cases because it is simpler, faster, prevents bad scarring, produces less orbicularis muscle trauma, and decreases postoperative edema and possible retractions (ectropion) in patients with decreased lower palpebral tone. Objective: To identify important concepts when deciding this approach. Material and Methods: Retrospective review of 177 patients who underwent lower blepharoplasty by a single surgical group. Regarding techniques, the transconjunctival approach was selected in 42% of patients while the transcutaneous technique was preferred in 58%. Results: A lower rate of complications was observed by the transconjunctival approach, with greater patient satisfaction. Conclusions: In our experience, due to its simplicity and less traumatic effect on the patient, the transconjunctival approach is an ideal technique, except in cases where there is lower eyelid weakness and surgical resolution is needed.
A Heuristic Approach for Assembly Scheduling and Transportation Problems with Parallel Machines  [PDF]
Peng-Sheng You, Yi-Chih Hsieh, Ta-Cheng Chen, Yung-Cheng Lee
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.51B006
Abstract: Many firms have to deal with the problems of scheduling and transportation allocation. The problems of assembly scheduling mainly focus on how to arrange orders in proper sequence on the assembly line with the purpose of minimizing the maximum completion time before they are flown to their destinations. Transportation allocation problems arise in how to assign processed orders to transport modes in order to minimize penalties such as earliness and tardiness. The two problems are usually separately discussed due to their complexity. This paper simultaneously deals with these two problems for firms with multiple identical parallel machines. We formulate this problem as a mixed integer programming model. The problem belongs to the class of NP-complete combinatorial optimization problems. This paper develops a hybrid genetic algorithm to obtain a compromised solution within a reasonable CPU time. We evaluate the performance of the presented heuristic with the well-known GAMS/CPLEX software. The presented approach is shown to perform well compared with well-known commercial software.
Experimental Analysis of Attitudes: The Factorial-Survey Approach  [PDF]
Sergio Herzog
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.51011
Abstract: A reading of the studies having been published by important sociological and criminological journals reveals a clear picture: for a variable to be considered dependent in a randomized experimental study (at least for those accepted and published by these journals), it has to be behavioral. The question asked in this article is, may only behavioral measures constitute dependent variables in highly qualified experimental studies? The answer is a distinct “no”, and attitudinal measures are also proposed as possible and legitimate dependent variables in randomized experimental studies. Here the factorial-survey approach, a relatively new survey technique, which combines the benefits of controlled, randomized experimental designs and conventional surveys, is suggested as a characteristic experimental technique in such studies. This article concludes that the factorial-survey approach may be considered an appropriate experimental technique in social science research—it produces findings that less developed methods are not able to examine.
Comparison of Time Development of the Sciatic Nerve Blockade Performed with 1% Lidocaine Subgluteal and Popliteal Approach under Ultrasound Guidance  [PDF]
Piacherski Valery, Marachkou Aliaksei, Brukhnou Andrei, Zakhar Kokhan
Open Journal of Anesthesiology (OJAnes) , 2014, DOI: 10.4236/ojanes.2014.412046
Abstract: The existing researches in the field of regional anesthesia of the sciatic nerve show that if popliteal sciatic nerve blockade is performed, the time of the development of the sciatic nerve anesthesia is longer in comparison with subgluteal sciatic nerve blockade. Background: The aim of the research is to compare the time of the development of the sciatic nerve blockade performed with 1% lidocaine with epinephrine (1:200,000) in subgluteal and popliteal areas under ultrasound guidance. Materials and Methods: Patients were divided into two groups. In Group A (20 patients), the subgluteal approach to block the sciatic nerve was taken; in Group B (20 patients), the popliteal approach was applied. All blockades of the sciatic nerve were performed with 1% lidocaine (30 ml of lidocaine with epinephrine (1:200,000)) and electrical stimulation of peripheral nerves under ultrasound guidance. We measured the time of the development of sensory and motor blocks. Results: In Group A, the sciatic nerve sensory block developed in 15 (14 - 16) minutes, a complete motor block developed in 15.5 (15 - 17) minutes. In Group B the sciatic nerve sensory block developed in 40 (38.5 - 42.5) minutes while a complete motor block did not develop in any patient. Conclusion: When the sciatic nerve is blocked in subgluteal area with 30 ml of 1% lidocaine with epinephrine (1:200,000) under ultrasound guidance, sensory blocks develop faster than during the popliteal blockade: 15 (14 - 16) minutes vs. 40 (38.5 - 42.5) minutes respectively. The opportunity to define the place of the introduction of local anesthetic in our research is limited.
Seismic Soil Liquefaction for Deterministic and Probabilistic Approach Based on in Situ Test (CPTU) Data  [PDF]
Shpresa Gashi, Neritan Shkodrani
World Journal of Engineering and Technology (WJET) , 2015, DOI: 10.4236/wjet.2015.32004
Abstract: One of the most devastating effects of earthquakes in the seismic regions is liquefaction. Many research works have been done in this field and at present different methods are available for the liquefaction potential assessment. The liquefaction is a very significant phenomenon in clayey silty soils, silty sands and also sands. The high potential of liquefaction is generally recognized when these type of soils are laid under the hydrostatic water table. This paper make an overview of two different methods for the evaluation of liquefaction potential, and a case study is presented. Two methods presented here are the Deterministic Approach proposed by Robertson and Wride (1998), and the Probabilistic Approach proposed by Moss and co-workers. Case study of the liquefaction potential evaluation is done for the Golem area, where geotechnical data from CPTU test were collected. The results of analysis in the Golem area show that liquefaction has medium susceptibly to occur. From the analyses, it is shown that the Probabilistic Approach gives more accurate information about the risk of liquefaction than the Deterministic Approach.
Assessment of the Outcome of Anterior versus Posterior Approach in the Management of Displaced Pediatric Supracondylar Humerus Fracture  [PDF]
Rebar Muhammad Noori Fatah, Bakhtyar Rasul M. Amin, Hamid Ahmad Mahmud, Ammar Jamil Yusif
Open Journal of Orthopedics (OJO) , 2016, DOI: 10.4236/ojo.2016.65017
Abstract: Background: Supracondylar fractures of the humerus are among the most common type of pediatric fractures. The outcome of severely displaced supracondylar fracture of the humerus in children subjected to wide controversies in term of safety, functional and cosmetic outcome. Closed reduction and percutaneous pinning is now considered as the gold standard rule, but open reduction still applicable in certain cases where intraoperative imaging is not available, in comminuted lateral column fractures and uneducable fractures. Aim of the Study: To compare the outcome (functional and cosmetic) of anterior (Henry) approach with the posterior (Campbell) approach used in two groups of patients’ sustained displaced supracondylar fractures. Patients and Methods: This prospective study was performed on 48 pediatric patients who were been admitted to the Emergency Hospital in Sulaimani province sustained displaced supracondylar humeral fractures and treated during the period from the first of October 2009 to the thirty-one of January 2011. The study included 28 boys, 20 girls; their mean age was 7.5 years; their ages range 2 - 13 years. We used the modified Gartland classification to assess the fractures displacement and only Gartland type II B and III were included and managed operatively by open reduction and internal fixation with 2 crossed K-wires. Follow up continued for 6 months and the results finally assessed using Flynn’s criteria. Results: According to the criteria of Flynn et al., 20 patients (83.3%) treated by the anterior approach had excellent functional results while 4 patients (16.7%) had good functional results. While those treated by the posterior approach, 16 patients (66.6%) had excellent functional results, 6 patients (25%) had good results and 2 (8.3%) patients had fair outcome. Cosmetic results were excellent in 22 patients in the anterior approach group and 20 patients in the posterior approach group. Conclusion: Posterior Campbell approach is simpler than anterior Henry approach, but it creates additional soft tissue damage that can affect the circulatory status and hence possible osteonecrosis of the trochlea and a higher percentage of limitation in joint mobility. While the anterior approach is technically more demanding, but it gives better functional results.
Sublingual epidermoid cyst—a case report  [PDF]
Satheesh kumar Bhandary, Vadisha Bhat, M. Shwetha Shenoy
Health (Health) , 2010, DOI: 10.4236/health.2010.26091
Abstract: In this article we present the case of an epidermoid cyst of sublingual space along with submental extension in a 35 year old lady who presented with a mass in the oral cavity. On examination a mass was seen on the floor of the mouth displacing the tongue superiorly. Diffuse fullness was noted in the submental region. The lesion was excised under general anaesthesia with nasotracheal intubation. The entire mass was removed intra orally. The histological features were suggestive of epidermoid cyst. The patient did well postoperatively and no recurrence was seen during 8 months follow up.
A Conventional Approach for the Solution of the Fifth Order Boundary Value Problems Using Sixth Degree Spline Functions  [PDF]
Parcha Kalyani, Patibanda S. Rama Chandra Rao, Ammiraju Sowbhagya Madhusudhan Rao
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.44082
Abstract:


In this communication we have used Bickley’s method for the construction of a sixth order spline function and apply it to solve the linear fifth order differential equations of the form yx(x)+g (x)y(x)= r(x) where g(x) and r(x) are given functions with the two different problems of different boundary conditions. The method is illustrated by applying it to solve some problems to demonstrate the application of the methods discussed.


Dartevelle Approach for Intra-Thoracic Subclavian Artery Aneurysm Repair  [PDF]
Chris Bond, Jameel Muzaffar, Donald Adam, Ehab Bishay
Open Journal of Thoracic Surgery (OJTS) , 2014, DOI: 10.4236/ojts.2014.42006
Abstract: Subclavian artery aneurysm is a rare phenomenon in the West, but its prevalence is increasingly proportionate to incidence of atherosclerotic disease in the population. It is generally accepted that gold standard care is surgical resection but with limited experience opportunity remains to optimise this. We report on a 66-year-old female arteriopath with an 8 cm intra-thoracic aneurysm of the right subclavian artery, just distal to the brachiocephalic trunk. Lack of a proximal landing zone prohibited endovascular repair thus we utilised the anterior transcervical approach described by Dartevelle. This approach provided excellent visualisation of the aneurysm, along with right vagus and phrenic nerves, facilitating proximal and distal control and subsequent decompression. Post operative recovery was swift and not marred by substantial pain or inhibition of chest wall mechanics, associated with median sternotomy and thoracotomy incisions usually advocated for such aneurysms. As such we purport this approach to offer excellent operative exposure for this increasing disease burden, with less morbidity associated than the currently accepted approach, representing an advance in the management of this condition.
Students’ Intuition in Mathematics Class Using Lesson Study and Open Approach  [PDF]
Kwanta Panbanlame, Kiat Sangaroon, Maitree Inprasitha
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.513161
Abstract: The objective of this article is to investigate students’ intuition in mathematics class using Lesson Study and Open Approach. The research methodology employed was the qualitative research methods of teaching experiment combined with an ethnographic study. The study’s target group consists of three Grade 2 students at Ban Bueng Niam Bueng Krainoon School in Khon Kaen Province during the 2012 Academic Year. This is the school that participated in the professional development of mathematics teachers with Lesson Study and Open Approach innovation project. The researcher collected data from a mathematics class that taught multiplication learning unit (1) from the mathematics textbook for Grade 2 students. This is the textbook used in the professional development of mathematics teachers with Lesson Study and Open Approach innovation project. The research findings are: Mathematics class using Lesson Study and Open Approach allows students to intuitively learn the content of a basic multiplication unit. Students’ intuition was developed during Step 1 (posing open-ended problems) and Step 2 (students’ self-learning through problemsolving) of the Open Approach process. Students intuitively discovered the repeated addition and multiplication methods in solving multiplication problems.
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