BSE uncertainties drag on
نویسنده
چکیده
A recent mix-up in studies on brain tissue of animals has set back Britain's efforts to determine human exposure to the BSE agent through contaminated meat products. Nigel Williams reports.
منابع مشابه
Mad cows and computer models: the U.S. response to BSE.
The proportion of slaughtered cattle tested for BSE is much smaller in the U.S. than in Europe and Japan, leaving the U.S. heavily dependent on statistical models to estimate both the current prevalence and the spread of BSE. We examine the models relied on by USDA, finding that the prevalence model provides only a rough estimate, due to limited data availability. Reassuring forecasts from the ...
متن کاملOn Character Space of the Algebra of BSE-functions
Suppose that $A$ is a semi-simple and commutative Banach algebra. In this paper we try to characterize the character space of the Banach algebra $C_{rm{BSE}}(Delta(A))$ consisting of all BSE-functions on $Delta(A)$ where $Delta(A)$ denotes the character space of $A$. Indeed, in the case that $A=C_0(X)$ where $X$ is a non-empty locally compact Hausdroff space, we give a complete characterizatio...
متن کاملSheep prions with molecular properties intermediate between classical scrapie, BSE and CH1641–scrapie
Efforts to differentiate bovine spongiform encephalopathy (BSE) from scrapie in prion infected sheep have resulted in effective methods to decide about the absence of BSE. In rare instances uncertainties remain due to assumptions that BSE, classical scrapie and CH1641-a rare scrapie variant-could occur as mixtures. In field samples including those from fallen stock, triplex Western blotting ana...
متن کاملHindsight blinkers Britain's mad cow disease response
Like the Phillips report itself (see box below) into Britain’s handling of the outbreak of bovine spongiform encephalopathy (BSE), the so-called mad cow disease, the newspaper stories accompanying its launch were inevitably written with hindsight. But while the report acknowledged the risks this entailed, press coverage was less scrupulous. Much of it also failed to reflect the scientific uncer...
متن کاملDrag-Tracking Guidance for Entry Vehicles Without Drag Rate Measurement
A robust entry guidance law without drag rate measurement is designed for drag-tracking in this paper. The bank angle is regarded as the control variable. First, a state feedback guidance law (bank angle magnitude) that requires the drag and its rate as feedback information is designed to make the drag-tracking error be input-to-state stable (ISS) with respect to uncertainties. Then a high gain...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Current Biology
دوره 11 شماره
صفحات -
تاریخ انتشار 2001