Benign mass

Kitaoka, F., Sakai, H., Kuroda, Y., Kurata, S., Nakayasu, K., Hongo, H., Iwata, T., and Kanematsu, T. (2001). Internal echo histogram examination has a role in distinguishing malignant tumors from benign masses in the... 

Sex cord stromal tumors account for the majority of functioning ovarian tumors. These benign masses... 

Catalytic reactors have worked to the benefit of the chemical and petroleum industries for many decades, under the watchful eyes of plant engineers and batteries of monitor and control instruments. The automotive catalytic converter will be the first mass produced catalytic reactor placed directly in the hands of the public, who can provide little more than benign neglect. 

Poor solubility in most common organic solvents represents an inherent problem in the synthesis and processing of many high molar mass fluoropolymers. In fact, CFCs and carbon dioxide are the best solvents for amorphous varieties of fluoropolymers. Due to the environmental problems associated with CFCs, the international community is seeking to replace them with more benign compounds such as hydrochlorofluorocarbons and hydrofluorocarbons. However, the environmental problems which will be created by the use of these replacement compounds such as the accumulation of trifluoroacetic acid in the atmosphere clouds this issue [71], Carbon dioxide presents an ideal inert solvent to effect the polymerization of these types of highly fluorinated monomers and obviates the use of solvents that are being phased out because of environmental concerns. 

In the search for environmentally benign chemicals that might deter birds such as starlings, crows, or pigeons from roosting en masse, spices and herbs such as rosemary, cumin, and thyme look promising. In some experiments, the birds feet were immersed in oil extracts of the spices. Starlings also avoided perches treated with starch mixes of (R)-limonene, (S)-limonene, (3-pinene, or methiocarb. The first three occur in rosemaiy, cumin, and thyme (Clark, 1997). 

NaN03). The AP propellant without NaNOj, (0.0), is composed of mass fractions of (AP) = 0.85 and (HTPB) = 0.15. The HCI gas among the combustion products of the AP propellant is converted into NaCl, which is a stable and environmentally benign material. 

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