annabiotica

Thursday, January 24, 2008

Anthrozoology

Anthrozoology is the study of human-animal interaction ("animal" referring to all non-human animals), also described as the science focusing on all aspects of the human-animal bond.

Anthrozoology is a modern interdisciplinary and burgeoning field that overlaps with a number of other disciplines, including anthropology, ethology, medicine, psychology, veterinary medicine and zoology. A major focus of anthrozoologic research is the quantifying of the positive effects of human-animal relationships on either party and the study of the reality of their interactions.

Wednesday, January 16, 2008

Nucleolus

The nucleolus is a discrete densely-stained structure found in the nucleus. It is not surrounded by a membrane, and is sometimes called a suborganelle. It forms around tandem repeats of rDNA, DNA coding for ribosomal RNA (rRNA). These regions are called nucleolar organizer regions (NOR). The main roles of the nucleolus are to synthesize rRNA and assemble ribosomes. The structural cohesion of the nucleolus depends on its activity, as ribosomal assembly in the nucleolus results in the transient association of nucleolar components, facilitating further ribosomal assembly, and hence further association. This model is supported by observations that inactivation of rDNA results in intermingling of nucleolar structures.

Tuesday, January 08, 2008

Psychology

Psychology (from Greek, ψυχή, "psyche", soul, and λόγος, science, "logos") is both an academic and applied discipline involving the scientific study of mental processes and behavior. There is some tension between scientific psychology (with its program of empirical research) and applied psychology (dealing with a number of areas, but primarily counseling).

Psychologists attempt to explain the mind and brain in the context of real life, in contrast to the physiological approach used by neurologists. Psychologists study such phenomena as perception, cognition, emotion, personality, behavior, and interpersonal relationships. Psychology also refers to the application of such knowledge to various spheres of human activity, including issues related to daily life—e.g. family, education, and work—and the treatment of mental health problems.

Thursday, January 03, 2008

Physicalism & Pluralism

The concept of "nature" embraced by contemporary metaphysical naturalists excludes by definition gods, spirits, and any other supernatural beings, objects, or forces. This particular definition rests in an ambiguity caused by the use of the term "supernatural" by Richard Carrier and other apologists for naturalism whereby this word indicates non-materially reducible entities (spiritual substances) rather than the traditional meaning (where a spiritual substance, if created, is encompassed within the natural world, though being a spiritual or immaterial substance). There are many different varieties of metaphysical naturalism, but all can be separated into two general categories, physicalism and pluralism. Physicalism entails the claim that everything everyone has observed or claimed to observe is in actual fact the product of fundamentally mindless arrangements or interactions of matter-energy in space-time, and therefore it is unreasonable to believe anything else exists.