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Dating back to the 1940s and 1950s, Magda Arnold took an interest in researching the appraisal of emotions accompanying general arousal. Specifically, Arnold wanted to "introduce the idea of emotion differentiation by postulating that emotions such as fear, anger, and excitement could be distinguished by different excitatory phenomena" (Arnold, 1950). [5]
In evolutionary biology, punctuated equilibrium (also called punctuated equilibria) is a theory that proposes that once a species appears in the fossil record, the population will become stable, showing little evolutionary change for most of its geological history. [1] This state of little or no morphological change is called stasis.
Assimilation is the process of absorption of vitamins, minerals, and other chemicals from food as part of the nutrition of an organism. In humans, this is always done with a chemical breakdown (enzymes and acids) and physical breakdown (oral mastication and stomach churning).
The left knee bone ATD6-56 has a 4.7 mm × 15 mm (0.19 in × 0.59 in) height x breadth osteophyte (bone spur) on the inferior (lower) margin. Osteophytes normally form as a response to stress due to osteoarthritis , which can result from old age or improper loading of the joint as a consequence of bone misalignment or ligament laxity .
A rare exception to the dominance of α-amino acids in biology is the β-amino acid beta alanine (3-aminopropanoic acid), which is used in plants and microorganisms in the synthesis of pantothenic acid (vitamin B 5), a component of coenzyme A.
Margaret Eleanor Atwood (born November 18, 1939) is a Canadian novelist, poet, and literary critic.Since 1961, she has published 18 books of poetry, 18 novels, 11 books of nonfiction, nine collections of short fiction, eight children's books, two graphic novels, and a number of small press editions of both poetry and fiction.
An outbreak of listeria infections linked with frozen supplemental shakes has made at least 38 people ill in 21 states, with 37 hospitalizations and 11 deaths, the US Food and Drug Administration ...
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11]