Phenology definition is - a branch of science dealing with the relations between climate and periodic biological phenomena (such as bird migration or plant flowering). For example, the leech Erpobdella testacea is found only in alkaline or polluted waters, the arrowworm Sagitta setosa is characteristic of continental shelf water, whereas S. elegans is characteristic of oceanic water. A sentinel event is any unexpected occurrence involving death or serious physical or psychological injury, or the risk thereof. Eighteenth-century philosophers used the concept to distinguish the ability to think from the ability to feel (sentience).In modern Western philosophy, sentience is the ability to experience sensations (known in philosophy of mind as "qualia"). The role of the sentinel had been thought to be altruistic for quite some time before Clutton-Brock et al 1999b published research that proposed meerkats who take on the role of sentinel are actually doing so in order to serve their own interests. definition 2... the number and variety of organisms in a given ar… Application of math and computer science to store, retrieve, a… A species considered to be in imminent danger of extinction. Sentience is the capacity to feel, perceive, or experience subjectively. Sentinel AUs featuring the concept of "Sentinel and Guide" are a popular trope that originated in The Sentinel fandom.. Extrapolating wildly from a brief mention about "guides" in canon, the trope often posits that for each Sentinel there is one perfect Guide and the two will imprint on each other.. Sentry definition, a soldier stationed at a place to stand guard and prevent the passage of unauthorized persons, watch for fires, etc., especially a sentinel stationed at a pass, gate, opening in a defense work, or the like. In coordination with the Association of Public Health Laboratories (APHL), the ASM has updated protocols designed to offer Laboratory Response Network (LRN) Sentinel Level Clinical Laboratories standardized, practical methods and techniques to rule out microorganisms suspected as agents of bioterrorism, or to refer specimens to public health laboratories for confirmation. Usually sentinel lymph node is in level I but may be at level II or level III; rarely intramammary, interpectoral (Rotter) or internal mammary node (Eur J Surg Oncol 2009;35:252) Intramammary nodes are present within breast tissue and are most commonly found in the upper outer quadrant Intramammary nodes may rarely be sentinel lymph nodes Sentinel animal in the largest biology dictionary online. The USGS Earth Resources Observation and Science (EROS) Center repackages Sentinel-2 products on a per tile basis while preserving the Sentinel Standard Archive Format for Europe (SAFE) format specification, which allows for the distribution of a user-friendly file size that is approximately 650 MB. Free learning resources for students covering all major areas of biology. See more. indicator species any species that is indicative of particular conditions or habitats. Medical Definition of Biopsy Medical Author: William C. Shiel Jr., MD, FACP, FACR Biopsy: The removal of a sample of tissue for examination under a … The Trope. Facts about the Sentinel Event Policy In support of its mission to continuously improve health care provided to the public, The Joint Commission reviews organizations’ activities in response to sentinel events.