A comparison of the destruction of E. Coli O157:H7 in ground beef using pulsed X-rays and gamma rays

2002 ◽  
Author(s):  
R. Curry ◽  
G. Mesyats ◽  
A. Filatov ◽  
K. Unklesbay ◽  
N. Unklesbay ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Ground Beef ◽  
X Rays ◽  
E Coli

The effect of high-dose-rate X-rays on E. coli 0157:H7 in ground beef

2000 ◽  
Vol 28 (1) ◽  
pp. 122-127 ◽  
Author(s):  
R.D. Curry ◽  
K. Unkiesbay ◽  
N. Unklesbay ◽  
T.E. Clevenger ◽  
B.J. Brazos ◽  
...  
Keyword(s):  
Dose Rate ◽  
Ground Beef ◽  
High Dose Rate ◽  
High Dose ◽  
X Rays ◽  
E Coli

Hard X‐Rays and Gamma Rays from Type Ia Supernovae

1998 ◽  
Vol 492 (1) ◽  
pp. 228-245 ◽  
Author(s):  
P. Hoflich ◽  
J. C. Wheeler ◽  
A. Khokhlov
Keyword(s):  
Gamma Rays ◽  
Type Ia Supernovae ◽  
X Rays ◽  
Type Ia ◽  
Ia Supernovae

Diffuse 0.5–1 keV X‐Rays and Nuclear Gamma Rays from Fast Particles in the Local Hot Bubble

1999 ◽  
Vol 511 (1) ◽  
pp. 204-207 ◽  
Author(s):  
Vincent Tatischeff ◽  
Reuven Ramaty
Keyword(s):  
Gamma Rays ◽  
X Rays

scholarly journals INTEGRAL serendipitous observations of solar and terrestrial X-rays and gamma rays

2021 ◽  
pp. 101616
Author(s):  
Marc Türler ◽  
Vincent Tatischeff ◽  
Volker Beckmann ◽  
Eugene Churazov
Keyword(s):  
Gamma Rays ◽  
X Rays

scholarly journals Lessons from a large outbreak of Escherichia coli O157[ratio ]H7 infections: insights into the infectious dose and method of widespread contamination of hamburger patties

1999 ◽  
Vol 122 (2) ◽  
pp. 185-192 ◽  
Author(s):  
J. TUTTLE ◽  
T. GOMEZ ◽  
M. P. DOYLE ◽  
J. G. WELLS ◽  
T. ZHAO ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Ground Beef ◽  
Most Probable Number ◽  
Strong Argument ◽  
Probable Number ◽  
Infectious Dose ◽  
E Coli ◽  
Beef Patties ◽  
Large Outbreak ◽  
Microbiological Testing

Between November 1992 and February 1993, a large outbreak of Escherichia coli O157[ratio ]H7 infections occurred in the western USA and was associated with eating ground beef patties at restaurants of one fast-food chain. Restaurants that were epidemiologically linked with cases served patties produced on two consecutive dates; cultures of recalled ground beef patties produced on those dates yielded E. coli O157[ratio ]H7 strains indistinguishable from those isolated from patients, confirming the vehicle of illness. Seventy-six ground beef patty samples were cultured quantitatively for E. coli O157[ratio ]H7. The median most probable number of organisms was 1·5 per gram (range, <0·3–15) or 67·5 organisms per patty (range, <13·5–675). Correlation of the presence of E. coli O157[ratio ]H7 with other bacterial indicators yielded a significant association between coliform count and the presence of E. coli O157[ratio ]H7 (P=0·04). A meat traceback to investigate possible sources of contamination revealed cattle were probably initially colonized with E. coli O157[ratio ]H7, and that their slaughter caused surface contamination of meat, which once combined with meat from other sources, resulted in a large number of contaminated ground beef patties. Microbiological testing of meat from lots consumed by persons who became ill was suggestive of an infectious dose for E. coli O157[ratio ]H7 of fewer than 700 organisms. These findings present a strong argument for enforcing zero tolerance for this organism in processed food and for markedly decreasing contamination of raw ground beef. Process controls that incorporate microbiological testing of meat may assist these efforts.

scholarly journals RADIO-QUIET AND RADIO-LOUD PULSARS: SIMILAR IN GAMMA-RAYS BUT DIFFERENT IN X-RAYS

2015 ◽  
Vol 802 (2) ◽  
pp. 78 ◽  
Author(s):  
M. Marelli ◽  
R. P. Mignani ◽  
A. De Luca ◽  
P. M. Saz Parkinson ◽  
D. Salvetti ◽  
...  
Keyword(s):  
Gamma Rays ◽  
X Rays
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