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While Lamb's analysis assumed a straight wavefront, it has been shown [8] that the same characteristic equations apply to cylindrical plate waves (i.e. waves propagating outwards from a line source, the line lying perpendicular to the plate). The difference is that whereas the "carrier" for the straight wavefront is a sinusoid, the "carrier ...
A cross-bred ewe suckles her lamb, which was the first of the 2008 spring lambing at a farm in Coventry, England Domesticated sheep are herd animals that are bred for agricultural trade. A flock of sheep is mated by a single ram , which has either been chosen by a farmer or, in feral populations, has established dominance through physical ...
Poddy lamb, bottle lamb or pet lamb – an orphan lamb reared on a bottle. Also cade lamb, or placer. Rubbed wool indicating the presence of external parasites on sheep. Pour-on – see backliner. Raddle – coloured pigment used to mark sheep for various reasons, such as to show ownership, or to show which lambs belong to which ewe. May be ...
These rumbles calm and quiet the lamb, and serve as an auditory signature as the lamb ages, a cue by which lambs can identify their own mothers. [4] Olfaction plays a role in responsiveness, as most non-maternal animals find the smell of infants and amniotic fluid repellant, while in maternal animals, those with the hormone profiles which occur ...
Coined by 19th-century British psychologist C. Lloyd Morgan, Morgan's Canon remains a fundamental precept of comparative (animal) psychology. In its developed form, it states that: [ 11 ] In no case is an animal activity to be interpreted in terms of higher psychological processes if it can be fairly interpreted in terms of processes which ...
Certain restrictions caused the mechanisms for self-fertilization (partial and full self-fertilization) to develop in a number of plant species. Some of the reasons why a self-fertilizing method of reproduction is so effective are the efficacy of reproduction, as well as decreasing genetic variation and thus the fixation of highly adapted ...
Michael E. Lamb was born and grew up in Northern Rhodesia (now Zambia). [3] He completed a degree in psychology and economics at the University of Natal in South Africa in 1972, before emigrating to the USA to pursue postgraduate studies in psychology at Johns Hopkins University. [4]
The term is used mostly in discourse about psychoanalysis, the psychology developed by Sigmund Freud. In general, his metapsychology represents a technical elaboration of his structural model of the psyche , [ 3 ] which divides the organism into three instances: the id is considered the germ from which the ego and the superego emerge.