[ensu] Thur Oct 14 IES/GOEHU Environment & Health Seminar

  • From: ENSU <utorensu@xxxxxxxx>
  • To: ensu@xxxxxxxxxxxxx
  • Date: Mon, 4 Oct 2004 15:54:59 -0400 (EDT)

 --- Mona El-Haddad <m.elhaddad@xxxxxxxxxxx> wrote: 
> From: "Mona El-Haddad" <m.elhaddad@xxxxxxxxxxx>
> To:   <m.elhaddad@xxxxxxxxxxx>
> Subject: Thur Oct 14 IES/GOEHU Environment & Health
> Seminar
> Date: Mon, 4 Oct 2004 10:31:48 -0400
> 
> Institute for Environmental Studies & 
> Gage Occupational and Environmental Health Unit 
> ENVIRONMENT & HEALTH SEMINAR
> ***********************************************
> 
> THUR OCTOBER 14, 4:00 p.m.
> Room 113, Koffler Institute for Pharmacy Management 
> 569 Spadina Ave., at Bancroft Ave., north of College
> St.
> (west door on Spadina Ave. locked; please use east
> door) 
> 
> RON BRECHER, Principal, GLOBALTOX Toxicology Focused
> Solutions
> 
> "HORMESIS: WHEN A LITTLE MEANS A LOT" (abstract
> below)
>   
> No registration required; all are welcome.  
> 
> For more information, please contact 
> Mona El-Haddad (416-978-6526;
> m.elhaddad@xxxxxxxxxxx) 
> 
> Please visit www.utoronto.ca/env/seminars.htm for
> abstracts and updates.
>
************************************************************************
> *
> ABSTRACT:
> Hormesis refers to a dose-response relationship for
> a toxicant where
> beneficial effects are produced in response to low
> level exposures.  The
> best known examples of chemicals showing hormetic
> effects are vitamins
> and minerals.  However, there is evidence for
> hormetic effects following
> exposure to numerous other hazardous agents,
> including arsenic,
> radiation, to name but two.  Current risk assessment
> paradigms assume
> that risk either increases monotonically with dose,
> or that risk is dose
> independent (i.e. for doses less than some
> threshold).   The concept of
> hormesis has not been effectively incorporated into
> risk assessment
> methodology, and to do so would require a major
> change in the risk
> assessment methods commonly used by regulators and
> others to assess and
> manage risks.  Dr. Brecher will present an overview
> of the concept of
> hormesis, including several examples, and discuss
> its importance as an
> emerging issue for risk assessment in the future.
> 
>
************************************************************
> REMAINING SEMINARS THIS TERM:
> 
> THUR OCTOBER 28, 4:00 p.m.
> JEFFREY BROOK, Senior Research Scientist,
> Meteorological Service of
> Canada; Adjunct Professor, Dept. of Public Health
> Sciences and Dept. of
> Chemical Engineering, University of Toronto
> "Urban air pollution exposure and impacts: today and
> 'The Day After
> Tomorrow'"
> 
> THUR NOVEMBER 4, 4:00 p.m.
> JAY KEYSTONE, Senior Staff Physician, Centre for
> Travel and Tropical
> Medicine, Toronto General Hospital; Professor,
> Medicine, U of T
> "It's the singer not the song...how to give an
> effective presentation"
> 
> THUR NOVEMBER 11, 4:00 p.m.
> BOB KUSIAK, Biostatistician, Professional and
> Specialized Services,
> Occupational Health and Safety Branch, Ontario
> Ministry of Labour
> "Cardiovascular disease and dust exposure: what can
> be learned from
> hospital discharge records"
> 
>  

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