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Jayson Azzi,Dalia Karol,Tayler Bailey,Christopher Jerome Ramnanan 한국보건의료인국가시험원 2019 보건의료교육평가 Vol.16 No.-
Given the lack of programs geared towards educating undergraduate students about medical school, the purpose of this study was to evaluate whether a medical student-driven initiative program, MEDTalks, enhanced undergraduate students’ understanding of medical school in Canada and stimulated their interest in pursuing medicine. The MEDTalks program, which ran between January and April 2018 at the University of Ottawa, consisted of 5 teaching sessions, each including large-group lectures, small-group case-based learning, physical skills tutorials, and anatomy lab demonstrations, to mimic the typical medical school curriculum. At the end of the program, undergraduate student learners were invited to complete a feedback questionnaire. Twenty-nine participants provided feedback, of whom 25 reported that MEDTalks allowed them to gain exposure to the University of Ottawa medical program; 27 said that it gave them a greater understanding of the teaching structure; and 25 responded that it increased their interest in attending medical school. The MEDTalks program successfully developed a greater understanding of medical school and helped stimulate interest in pursuing medical studies among undergraduate students.
Ziad Azzi,Amal Elawady,Peter Irwin,Arindam Gan Chowdhury,Caesar Abi Shdid 한국풍공학회 2022 Wind and Structures, An International Journal (WAS Vol.34 No.2
Transmission lines systems are important components of the electrical power infrastructure. However, these systems are vulnerable to damage from high wind events such as hurricanes. This study presents the results from a 1:50 scale aeroelastic model of a multi-span transmission lines system subjected to simulated hurricane winds. The transmission lines system considered in this study consists of three lattice towers, four spans of conductors and two end-frames. The aeroelastic tests were conducted at the NSF NHERI Wall of Wind Experimental Facility (WOW EF) at the Florida International University (FIU). A horizontal distortion scaling technique was used in order to fit the entire model on the WOW turntable. The system was tested at various wind speeds ranging from 35 m/s to 78 m/s (equivalent full-scale speeds) for varying wind directions. A system identification (SID) technique was used to evaluate experimental-based along-wind aerodynamic damping coefficients and compare with their theoretical counterparts. Comparisons were done for two aeroelastic models: (i) a self-supported lattice tower, and (ii) a multi-span transmission lines system. A buffeting analysis was conducted to estimate the response of the conductors and compare it to measured experimental values. The responses of the single lattice tower and the multi-span transmission lines system were compared. The coupling effects seem to drastically change the aerodynamic damping of the system, compared to the single lattice tower case. The estimation of the drag forces on the conductors are in good agreement with their experimental counterparts. The incorporation of the change in turbulence intensity along the height of the towers appears to better estimate the response of the transmission tower, in comparison with previous methods which assumed constant turbulence intensity. Dynamic amplification factors and gust effect factors were computed, and comparisons were made with code specific values. The resonance contribution is shown to reach a maximum of 18% and 30% of the peak response of the stand-alone tower and entire system, respectively.
Alain Joe Azzi,Jordan Gornitsky,Alex Viezel-Mathieu,Lucie Lessard 대한암예방학회 2018 Journal of cancer prevention Vol.23 No.2
Background: There is a paucity of data comparing the oncologic properties of breast cancer among patients previously having undergone breast augmentation in either the subglandular or subpectoral planes. The objective of the present systematic review was to evaluate whether implant location influenced the characteristics of breast tumors in previously augmented women. Methods: A systematic literature search was performed to identify relevant articles reporting tumor characteristics in augmented patients. The search included published articles in three electronic databases; Ovid MEDLINE, EMBASE, and PubMed. Comparative studies (subglandular vs. subpectoral) were included. Results: Analysis of data pooled from the included studies showed that subglandular implants had a higher frequency of tumors between 2 to 5 cm (26.5% vs. 9.9%, P = 0.0130). Subglandular implants also had a higher frequency of stage 2 tumors (42.9% vs. 23.7%, P = 0.0308). There was no significant difference in lymphovascular invasion between the 2 groups. These results of this systematic review suggest that the prognosis of patients undergoing augmentation is unaffected by implant location (subpectoral vs. subglandular). Conclusions: With the absence of large randomized controlled trials, our study provides surgeons with an evidence-based reference to improve informed consent with regards to implant placement.
A comparison of delayed versus immediate reconstruction following lower-extremity sarcoma resection
Zhou, Sarah,Azzi, Alain J,Safran, Tyler,Zadeh, Teanoosh Korean Society of Plastic and Reconstructive Surge 2020 Archives of Plastic Surgery Vol.47 No.1
Background Identifying patients who may be at high risk for wound complications postsarcoma resection and reconstruction is essential for improving functional outcomes and quality of life. Currently, the effect of timing on sarcoma reconstruction has been poorly investigated. The purpose of this study was to compare outcomes of delayed and immediate reconstruction in the setting of sarcoma resection requiring flap reconstruction in the lower extremity. Methods A retrospective review of the senior author's sarcoma reconstruction patients from January 2005 to July 2017 was completed. All patients undergoing flap reconstruction of the lower extremity were included. Complications in the early postoperative period were compared between delayed and immediate reconstructive procedures. Results A total of 32 patients (7 delayed, 25 immediate) were included in this study. There was a significantly increased rate of overall complications (100% vs. 28.0%, P=0.001) and rate of hematomas (28.6% vs. 0.0%, P=0.042) in the delayed reconstruction group. Other complications including dehiscence, seroma, infection, venous thrombosis, and total/partial flap loss were also increased in the delayed reconstruction group, but this was not considered to be significant. Conclusions This study suggests that delayed reconstruction following sarcoma resection of the lower extremity had a higher incidence of overall complications and hematoma formation. We emphasize the importance of early plastic and reconstructive surgeon referral and the necessity to closely monitor delayed reconstruction patients for complications.
High Performance Iron Powder Mixes for High Density PM Applications
St-Laurent Sylvain,Azzi Lhoucine,Thomas Yannig 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
The achievement of high density at reasonable cost is one of the major challenges of the P/M industry. One of the key factors contributing to the compressibility of a mix is the lubricant. New experimental lubricants enabling higher green density by conventional compaction or temperature-controlled die compaction were identified. The compaction and ejection characteristics of these new lubricants as measured with a fully instrumented lab press are presented and compared to that of conventional lubricants.
CDF run IIb silicon: design and testing
Lu, R.-S.,Akimoto, T.,Aoki, M.,Azzi, P.,Bacchetta, N.,Behari, S.,Benjamin, D.,Bisello, D.,Bolla, G.,Bortoletto, D.,Busetto, G.,Cabrera, S.,Canepa, A.,Cardoso, G.,Chertok, M.,Ciobanu, C.I.,Derylo, G.,F IEEE 2004 IEEE transactions on nuclear science Vol.51 No.5
<P>The various generations of Silicon Vertex Detectors (SVX, SVX', SVXII) for Collider Detector at Fermilab (CDF) at the Fermilab Tevatron have been fundamental tools for heavy-flavor tagging via secondary vertex detection. The CDF Run IIb Silicon Vertex Detector (SVXIIb) has been designed to be a radiation-tolerant replacement for the currently installed SVXII because SVXII was not expected to survive the Tevatron luminosity anticipated for Run IIb. One major change in the new design is the use of a single mechanical and electrical element throughout the array. This element, called a stave, carries six single-sided silicon sensors on each side and is built using carbon fiber skins with a high thermal conductivity on a foam core with a built-in cooling channel. A Kapton bus cable carries power, data and control signals underneath the silicon sensors on each side of the stave. Sensors are read out in pairs via a ceramic hybrid glued on one of the sensors and equipped with four SVX4 readout chips. This new design concept leads to a very compact mechanical and electrical unit, allowing streamlined production and ease of testing and installation. A description of the design and mechanical performance of the stave is given. Results on the electrical performance obtained using prototype staves are also presented.</P>
New two-step wedge liver resection technique: “zoom resection”
Guillermo Pfaffen,Nicolas Ortiz,Jose Sotelo,Rodrigo Moran Azzi,Victor Serafini 한국간담췌외과학회 2018 Annals of hepato-biliary-pancreatic surgery Vol.22 No.4
Different surgical procedures have been described for the treatment of colorectal liver metastases. The appropriate surgical approach depends, among many other factors, on the relationship between liver metastases and suprahepatic veins. If possible, the detachment of colorectal liver metastasis from suprahepatic veins is a good alternative liver parenchyma sparing technique. In this study, we describe a new two-step wedge liver resection technique for colorectal liver metastases located between suprahepatic veins. Prior to resection, intraoperative ultrasound is employed in order to plan and guide both steps. Initially, we place stitches and resect a cylindrical piece of normal liver parenchyma above the tumor and suprahepatic veins. Next, we place stitches on the future specimen located between suprahepatic veins, then resect it. The main advantages of this procedure are the good visualization and vascular control that may be achieved during the detachment of the tumor from suprahepatic veins. We call this procedure “zoom resection” because its dynamics are similar to the workings of a photograph cameras telescopic system. We present the case of a 55-year-old patient diagnosed with multiple colorectal liver metastases, one of which was resected through this technique.
Heavy flavor properties of jets produced inpp¯interactions ats=1.8TeV
Acosta, D.,Ambrose, D.,Anikeev, K.,Antos, J.,Apollinari, G.,Arisawa, T.,Artikov, A.,Azfar, F.,Azzi-Bacchetta, P.,Bacchetta, N.,Barnes, V. E.,Barnett, B. A.,Barone, M.,Bauer, G.,Bedeschi, F.,Behari, S. American Physical Society 2004 PHYSICAL REVIEW D - Vol.69 No.7
Direct photon cross section with conversions at CDF
Acosta, D.,Affolder, T.,Albrow, M. G.,Ambrose, D.,Amidei, D.,Anikeev, K.,Antos, J.,Apollinari, G.,Arisawa, T.,Artikov, A.,Ashmanskas, W.,Azfar, F.,Azzi-Bacchetta, P.,Bacchetta, N.,Bachacou, H.,Badgett American Physical Society 2004 PHYSICAL REVIEW D - Vol.70 No.7
Optimized search for single-top-quark production at the Fermilab Tevatron
Acosta, D.,Affolder, T.,Albrow, M. G.,Ambrose, D.,Amidei, D.,Anikeev, K.,Antos, J.,Apollinari, G.,Arisawa, T.,Artikov, A.,Ashmanskas, W.,Azfar, F.,Azzi-Bacchetta, P.,Bacchetta, N.,Bachacou, H.,Badgett American Physical Society 2004 PHYSICAL REVIEW D - Vol.69 No.5