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Omar, Israel

Goncalves J.J.,Fernando Pessoa University | Goncalves J.J.,EST Inc | Rocha A.M.,Fernando Pessoa University
Head and Neck Oncology | Year: 2012

Background. The assessment of Quality of Life (QoL) is a Medical goal; it is used in clinical research, medical practice, health-related economic studies and in planning health management measures and strategies. The objective of this project is to develop an informational platform to achieve a patient self-assessment with standardized QoL measuring instruments, through friendly software, easy for the user to adapt, which should aid the study of QoL, by promoting the creation of databases and accelerating its statistical treatment and yet generating subsequent useful results in graphical format for the physician analyzes in an appointment immediately after the answers collection. Methods. First, a software platform was designed and developed in an action-research process with patients, physicians and nurses. The computerized patient self-assessment with standardized QoL measuring instruments was compared with traditional one, to verify if its use did not influence the patient's answers. For that, the Wilcoxon and t-Student tests were applied. After, we adopted and adapted the mathematic Rash model to make possible the use of QoL measure in the routine appointments. Results. The results show that the computerized patient self-assessment does not influence the patient's answers and can be used as a suitable tool in the routine appointment, because indicates problems which are more difficult to identify in a traditional appointment, improving thus the physician's decisions. Conclusions. The possibility of representing graphically useful results that physician needs to analyze in the appointment, immediately after the answer collection, in an useful time, makes this QoL assessment platform a diagnosis instrument ready to be used routinely in clinical practice. © 2012 Gonçalves and Rocha; licensee BioMed Central Ltd.


Matagne E.,CEREM iMMC UCL | El Bachtiri R.,EST Inc | El Bachtiri R.,University College London
Solar Energy | Year: 2014

Most of the simplified models consider that the diffuse irradiance received by a sloped plane can be split into a hemispherical part and a circumsolar part. This paper deals with the hemispherical part, as obtained by integration of the hemispherical sky radiance contribution. It is based on the Perez assumption, widely used in practice, that hemispherical sky radiance is uniform on the entire sky with the exception of a horizon band assigned to a different radiance value. Perez uses an approximate formula for the contribution of that horizon band. In this paper, an exact analytical expression of the irradiance due to the Perez horizontal band is developed and used for comparing exact and simplified values. Significant differences with the simplified Perez formula are observed. The use of our exact formula is thus advisable. © 2013 Elsevier Ltd.


Badjagbo K.,University of Montreal | Badjagbo K.,EST Inc | Heroux M.,Environment Canada | Alaee M.,Environment Canada | And 2 more authors.
Environmental Science and Technology | Year: 2010

Landfill-biogas utilization is a win-win solution as it creates sources of renewable energy and revenue while diminishing greenhouse gas emissions. However, the combustion of a siloxane-containing biogas produces abrasive microcrystalline silica that causes severe and expensive damages to power generation equipment. Hence, the importance of siloxane analysis of the biogas has increased with the growth of the waste-to-energy market. We have investigated an improved method for the analysis of octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) in biogas using deuterated hexamethyldisiloxane (HMDS-d18) as an internal standard with direct atmospheric pressure chemical ionization/tandem mass spectrometry (APCI-MS/MS). The use of HMDS-d18 as a single internal standard provided effective signal compensation for both D4 and D5 in biogas and improved the sensitivity and reliability for the direct APCI-MS/MS quantification of these compounds in biogas. Low detection limits (∼2 μg/m3) were achieved. The method was successfully applied for the determination of D4 and D5 contents in various samples of biogas recovered for electrical power generation from a landfill site in Montreal. Concentrations measured for D4 and D5 were in the ranges of 131-1275 and 250-6226 μg/m3, respectively. Among the various landfill zones sampled, a clear trend of decreasing D4 and D5 concentrations was observed for older landfill materials. © 2010 American Chemical Society.


Trademark
EST Inc | Date: 2016-07-01

Machine tools for broaching, hobbing, spline cutting, spline gauging, spline forming, spline measuring, milling, metal cutting and drilling.


Trademark
EST Inc | Date: 2016-03-29

Boot polish; polishes for shoes; shoe wax; shoe sprays in the nature of foot deodorant sprays that may be applied to shoes; foot care preparations, namely, foot powder; non-medicated foot creams; non-medicated creams and deodorants to combat foot perspiration; nail care preparations. Orthopedic footwear; orthopedic insoles, orthopedic soles, orthopedic foot beds. Bags, namely, leather bags, suitcases and wallets, travelling bags, leather traveling bags, wheeled bags, overnight bags, shoe bags for travel, all-purpose carrying bags, all-purpose sport bags, gym bags, key bags, belt bags, shoulder bags, evening bags, garment bags for travel, suit bags. Shoe-trees; shoehorns; shoe horns. Shoes; heels; soles for footwear; inserts and insoles for footwear for non-orthopedic purposes; inserts and foot bed adapters for footwear for non-orthopedic purposes; clothing, namely, socks; stockings; tights; jackets; gloves; trousers; shirts; blouses; pullovers; belts; hats; tights.

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