A transudative pleural effusion occurs when pleural. fluid accumulates because of an imbalance between. the hydrostatic and oncotic pressures. The leading. causes of transudative pleural effusions are congestive. heart failure, cirrhosis, and pulmonary embolism.
âRetrieval practiceâ is a learning strategy where we focus on getting information out. Through the act of retrieval, or calling information to mind, our memory for that information is strengthened and forgetting is less likely to occur. Retrieval practice is a powerful tool for improving learning without more technology, money, or class time. On this website (and in our free Retrieval Practice Guide), we discuss how to use retrieval practice to improve learning.
Information retrieval (IR) is the activity of obtaining information resources relevant to an information need from a collection of information resources. Searches can be based on full-text or other content-based indexing. Information retrieval is the science of searching for information in a document, searching for document themselves, searching for metadata that describe data and for databases such as text, image or sound. Automated information retrieval systems are used to reduce what has been called information overload.