scholarly journals Effects of Physical and Chemical Agents on Competing- and Transforming-Abilities of DNA in Bacillus subtilis

1973 ◽  
Vol 14 (1) ◽  
pp. 18-30
Author(s):  
H. TANOOKA ◽  
F. MAKINO
Keyword(s):  
Bacillus Subtilis ◽  
Chemical Agents ◽  
Physical And Chemical

Identification of Mutants from Azuki Bean (Vigna angularisi) Jingnong 6 Seed Induced by Physical and Chemical Agents

2010 ◽  
Vol 36 (4) ◽  
pp. 565-573
Author(s):  
Xing TONG ◽  
Bo ZHAO ◽  
Wen-Lin JIN ◽  
Chao-Wu ZENG ◽  
Hong-Xia LIU ◽  
...  
Keyword(s):  
Azuki Bean ◽  
Chemical Agents ◽  
Physical And Chemical

EFFECTS OF PHYSICOCHEMICAL AGENTS ON THE ELECTROPHORETIC PROPERTIES OF SERUM PROTEINS IN STARCH GEL MEDIUM

1962 ◽  
Vol 40 (1) ◽  
pp. 35-39
Author(s):  
M. Richter ◽  
J. Gold ◽  
W. Rankowicz ◽  
B. Rose
Keyword(s):  
Serum Proteins ◽  
Paper Electrophoresis ◽  
Freezing And Thawing ◽  
Chemical Agents ◽  
Starch Gel ◽  
Physical And Chemical

The effects of physical and chemical agents on the electrophoretic properties of the serum proteins have been investigated utilizing both starch gel and paper electrophoresis. It has been found that freezing and thawing do not produce any alterations in the serum proteins whereas heating at either 47 °C or 55 °C causes a certain degree of homogenization of the serum proteins.

Cryptosporidium and Giardia as Agents of Foodborne Disease

1993 ◽  
Vol 56 (5) ◽  
pp. 451-461 ◽  
Author(s):  
JAMES L. SMITH
Keyword(s):  
Prevention And Control ◽  
Life Cycles ◽  
Foodborne Disease ◽  
Protozoan Parasites ◽  
Body Contact ◽  
Chemical Agents ◽  
Life Threatening ◽  
Foodborne Outbreaks ◽  
And Control ◽  
Physical And Chemical

Infections by the protozoan parasites of the genera Cryptosporidium and Giardia can be asymptomatic or cause gastroenteritis in immunocompetent people. However, in immunocompromised individuals, the infections can be more severe and even life threatening. Both parasites are common waterborne pathogens, but on occasion they may be foodborne or transmitted by body contact. In this review, several aspects of Cryptosporidium and Giardia are discussed including their life cycles, resistance to physical and chemical agents, routes of transmission to humans, the nature of the disease caused by the parasites, and detection of the organisms in water, feces, and food. Documented incidents in which Cryptosporidium or Giardia contaminated foods were implicated as cause of gastroenteritis are discussed to illustrate conditions leading to foodborne outbreaks and to suggest means of prevention and control of the parasites when present in foods.

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