Of the common causes for exudative pleural effusions, parapneumonic effusions have the highest diagnostic priority. Even in the face of antibiotic therapy, infected pleural effusions can rapidly coagulate and organize to form fibrous peels that might require surgical decortication.
Retrogradation is the landward change in position of the front of a river delta with time.etrogradation is the landward change in position of the front of a river delta with time.
Biodegradation is the chemical dissolution of materials by bacteria, fungi, or other biological means.Although often conflated, biodegradable is distinct in meaning from compostable.While biodegradable simply means to be consumed by microorganism, compostable makes the specific demand that the object break down under composting conditions.iodegradable technology is especially utilized by the bio-medical community. Biodegradable polymers are classified into three groups: medical, ecological, and dual application, while in terms of origin they are divided into two groups: natural and synthetic.