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Lacroix, M.,Turgis, M.,Borsa, J.,Millette, M.,Salmieri, S.,Caillet, S.,Han, J. Elsevier 2009 Radiation physics and chemistry Vol.78 No.11
<P><B>Abstract</B></P><P>Spice extracts under the form of essential oils (Eos) were tested for their efficiency to increase the relative bacterial radiosensitivity (RBR) of <I>Listeria monocytogenes</I>, <I>Escherichia coli</I> and <I>Salmonella</I> <I>typhi</I> in culture media under different atmospheric conditions. The selected Eos were tested for their ability to reduce the dose necessary to eliminate <I>E. coli</I> and <I>S.</I> <I>typhi</I> in medium fat ground beef (23% fat) and <I>Listeria</I> in ready-to-eat carrots when packed under air or under atmosphere rich in oxygen (MAP). Results have demonstrated that depending of the compound added and the combined treatment used, the RBR increased from 2 to 4 times. In order to evaluate the industrial feasibility, EOs were added in ground beef at a concentration which does not affect the taste and treated at a dose of 1.5kGy. The content of total mesophilic aerobic, <I>E. coli</I>, <I>Salmonella</I>, total coliform, lactic acid bacteria, and <I>Pseudomonas</I> was determined during 28 days. The results showed that the combined treatment (radiation and EOs) can eliminate <I>Salmonella</I> and <I>E. coli</I> when done under air. When done under MAP, <I>Pseudomonas</I> could be eliminated and a shelf life of more than 28 days was observed. An active edible coating containing EOs was also developed and sprayed on ready-to-eat carrots before radiation treatment and <I>Listeria</I> was evaluated. A complete inhibition of <I>Listeria</I> was obtained at a dose of 0.5kGy when applied under MAP. Our results have shown that the combination of an edible coating, MAP, and radiation can be used to maintain the safety of meat and vegetables.</P>
Justine Lacroix,Jean-Christophe Daviet,Jean-Yves Salle,Benoit Borel,Maxence Compagnat,Stephane Mandigout 대한재활의학회 2019 Annals of Rehabilitation Medicine Vol.43 No.3
Objective To determine whether post-stroke patient’s perceived exertion correlates with effort intensity score as measured by a wearable sensor and to assess whether estimates of perceived exertion are correlated to the cerebral hemisphere involved in the stroke. Methods We evaluated the effort intensity score during physiotherapy sessions using a wearable sensor and subjects assessed their perceived exertion using the modified Borg CR10 Scale. Results Fifty-seven subacute stroke patients participated in the study. The correlation between perceived exertion rating and measured effort intensity was insignificant—mean (r=-0.04, p=0.78) and peak (r=-0.05, p=0.70). However, there was a significant difference (p<0.02) in the perceived exertion ratings depending on the cerebral hemisphere where the stroke occurred. Patients with left-hand side lesions rated their perceived exertion as 4.5 (min–max, 0.5–8), whereas patients with right-hand side lesions rated their perceived exertion as 5.0 (2–8). Conclusion While there was an insignificant correlation between perceived exertion and effort intensity measured by a wearable sensor, a consistent variations in perceived exertion estimates according to the side of the cerebral lesion was identified and established.
Evaluation of the Underground Economy in Quebec: A Microeconomic Approach
Bernard Fortina,Guy Lacroix,Dominique Pinard 한국국제경제학회 2010 International Economic Journal Vol.24 No.4
The main purpose of this paper is to estimate the size and the growth of Quebec's underground economy, and the corresponding loss of taxes for the government. Our approach is based on a method developed by Pissarides and Weber (1989) and extended by Lyssiotou et al. (2004). The basic hypothesis is that individuals can under-report their earnings from self-employment but not from paid work, from which taxes are directly deducted. We estimate a consumer demand system in which the marginal propensity to consume is allowed to vary with the two types of earnings. We next estimate the amount of self-employment earnings that are under-reported. From this estimate, we calculate the relative size of the underground economy in Quebec. We use data from Statistics Canada's Survey of Household Spending. According to our results, Quebec's underground economy amounted to 4.6% of GDP in 1997 and increased slightly to 5.7% in 2002. For the government, this represents approximately $3.3 billion in forgone taxes for the year 2002. This estimate is very close to those reported by Gervais (1994) and Fortin and Lacroix (2009) using very different estimation methods and data.