Category: T

A leaf symptom in which clear yellow areas separate marginal and interveinal areas of dark necrotic tissue from persistently green areas along and adjacent to the main veins, giving a striped yellow-and-black appearance. The term was applied to a symptom of hop verticillium wilt and has since been used for similar patterns in other diseases.…

The lowest temperature at which heating for a limited period (usually 10 min) is sufficient to cause a virus to lose its infectivity or an enzyme its activity.  

The lowest temperature at which heating for a limited period (usually 10 min) is sufficient to kill a microorganism.  

The proportion of the amount of leftover material in a specific area after a period of exposure to the elements, compared to the initial quantity present in the same area prior to said exposure, is what defines the aforementioned ratio.  

The correlation between the rates of inactivation at temperatures differing by 10°C is expressed by the ratio Q/10. The reduction of infectivity in certain viruses is tightly linked to denaturation, which leads to a high Q/10 and minimal loss of infectivity at temperatures that are not too low. Conversely, viruses with a low Q/10 undergo…

Most classifications of living things are organized in a hierarchical manner, consisting of various categories or ranks. Nomenclature regulations do not dictate how to classify organisms, they merely establish the naming conventions for the categories once taxonomic decisions have been made. Nevertheless, these regulations provide a list of categories that have traditionally been recognized by…

The ability to detect fine differences in the size of an object.  

A distressed personality type that has high negative affectivity and social inhibition; the construct was proposed as an indicator of a poor prognosis for patients with heart disease.  

A daily exercise used for cognitive restructuring designed to identify, challenge, and replace automatic negative thoughts.  

Highly distressing experiences that can result in feelings of terror, extreme fright, or helplessness.