(n.) A fixed point of time, established in history by the occurrence of some grand or remarkable event; a point of time marked by an event of great subsequent influence; as, the epoch of the creation; the birth of Christ was the epoch which gave rise to the Christian era.
(n.) A period of time, longer or shorter, remarkable for events of great subsequent influence; a memorable period; as, the epoch of maritime discovery, or of the Reformation.
(n.) A division of time characterized by the prevalence of similar conditions of the earth; commonly a minor division or part of a period.
(n.) The date at which a planet or comet has a longitude or position.
(n.) An arbitrary fixed date, for which the elements used in computing the place of a planet, or other heavenly body, at any other date, are given; as, the epoch of Mars; lunar elements for the epoch March 1st, 1860.
Example Sentences:
(1) The adaptive filter processor was tested for retrospective identification of artifacts in 20 male volunteers who performed the following specific movements between epochs of quiet, supine breathing: raising arms and legs (slowly, quickly, once, and several times), sitting up, breathing deeply and rapidly, and rolling from a supine to a lateral decubitus position.
(2) The results indicate that the different EEG frequency bands during a given EEG epoch are generated by neural populations in different brain locations.
(3) The majority of classes have over 200 discrete epochs.
(4) By means of the adaptive estimation of the variance of respiratory movements, an amplitude-time window is calculated to choose between epochs with breaths and apnoea.
(5) Speaking in Athens last November, the Italian philosopher Giorgio Agamben discussed an epochal transformation in the idea of government, "whereby the traditional hierarchical relation between causes and effects is inverted, so that, instead of governing the causes – a difficult and expensive undertaking – governments simply try to govern the effects".
(6) The effect was chiefly on the frequency of state changes and less on epoch durations.
(7) The author rejects the proposition, encountered in some parts of the psychoanalytic and social-science literature, that certain types of disturbances correspond to certain epochs or forms of society.
(8) In overt schizophrenics, late epoch stability was low in all EPs.
(9) EPOCH was administered intravenously once a week with the dosage of 3,000-9,000 IU for 8 weeks.
(10) The prolonged neurophysiological effects of stimulation may allow the use of maximum effective intervals between optimal epochs of stimulation so that any cerebellar damage can be minimized.
(11) Median heart and respiratory rate, respiratory variability, and median extent of three types of heart rate variation were determined for each epoch, and the minute-by-minute correlations between seven pairs of parameters were determined for quiet sleep, rapid eye movement sleep, and waking in each recording.
(12) The short-term variability of the selected EEG measures and their suitability as a sample estimate were assessed by computing the coefficient of variation from all selected epochs of a given subject at baseline.
(13) But what use are such skills when addressing the enormity of this new epoch?
(14) It is argued that, during the first two and last periods, all quantities of genetic interest, such as the gametic frequencies, the mean fitness, the linkage disequilibrium, and the linkage disequilibrium ratio, Z, change with time in essentially the same manner, characteristic of the particular epoch concerned and determined in this paper, and therefore, when quasilinkage equilibrium occurs, it is a transitional phenomenon.
(15) Evidence for the hypothesis was found only during the EEG-epoch one second before the answer.
(16) The automatic analysis scored fewer epochs as stages wake, rapid eye movement (REM), and 2 and more as stages 1, 3, and 4.
(17) Finally, an epoch by epoch analysis is described, with the aim of achieving a more detailed evaluation of the intergroup variability.
(18) In the first set of experiments (n = 8), placebo or CS (30 mg) was given, followed by four 15-min epochs of alveolar hypoxia (8% O2, 5% CO2, 87% N2) each separated by 30 min of alveolar normoxia (21% O2).
(19) Two averaging strategies were assessed: (1) averaging the entire pre- and poststimulus epoch point for point across individuals and (2) averaging the voltage of Pa at the latency of Pa for each individual.
(20) Finally, it is demonstrated that the probability of a false-positive decision may increase by an order of magnitude if the Rayleigh test is not performed once, for a fixed number of epochs specified in advance, but is carried out repeatedly during an ongoing experiment until either one of the tests indicates the presence of an evoked response or the upper limit for the number of epochs is exceeded.
Prehistoric
Definition:
(a.) Of or pertaining to a period before written history begins; as, the prehistoric ages; prehistoric man.
Example Sentences:
(1) As any archaeologist will tell you, trying to understand what was going through the minds of the people who built these prehistoric monuments is a difficult task,” said Dr Marek Kukula, public astronomer at the Royal Observatory Greenwich.
(2) Trephination dates from prehistoric neolithic times (10,000-7000 B.C.)
(3) The breathtaking response of the geosphere as the great ice sheets crumbled might be considered as providing little more than an intriguing insight into the prehistoric workings of our world, were it not for the fact that our planet is once again in the throes an extraordinary climatic transformation – this time brought about by human activities.
(4) A treasure trove of more than £1.7bn-worth of old masters paintings, Greek, Roman and Egyptian antiquities, ancient weapons and prehistoric archaeological items were allowed to be sold overseas in the year to May 2013, according to official statistics issued by the government .
(5) These results suggest that Wilson bands are an indicator of the relative proportion of individuals who are high susceptibles in prehistoric populations.
(6) But nevertheless Theco is a fascinating creature because of both its place in the history of palaeontology and what it reveals about the south-west of England in prehistoric times.
(7) Comparisons of these ancient Sri Lankans with other prehistoric skeletal series from South Asia and elsewhere support the hypothesis that muscular-skeletal robusticity was a significant physical adaptation of earlier hunting-foraging populations.
(8) In case of the boy from Basta 1, this would the earliest evidence for the occurrence of this type of sexual delinquency in prehistoric times.
(9) The possibility of obtaining information on growth and development from prehistoric and early historic skeletal remains of children and juveniles is discussed.
(10) Abraded grooves have been observed on the anterior teeth of all the adults in a small population of prehistoric California Indians.
(11) According to Chinese classical literature on materia medica, the early uses were limited to the parts of the plant which met the most obvious needs of the prehistorical people in their struggle for existence-food and pain reliever.
(12) This reduction in size is one of the most important criteria for distinguishing prehistoric domestic livestock from their wild forms.
(13) Reasons for the existing lack of anthropological data on the subject are suggested, and the potential usefulness of representative surveys of large samples of prehistoric populations is stressed.
(14) Samples of innominates from three prehistoric Amerindian populations were used.
(15) Within North American prehistoric Indian populations, increasing brachycephalization and the possible development of a larger, broader face are two structural trends that can be identified.
(16) This result is different than that in some other prehistoric native American populations, where tibia CSMI increases with age in both sexes.
(17) Our objective in this study was to determine whether the prevalences of periodontal diseases, coronal caries, and root caries for prehistoric inhabitants vary between geochemical regions of the state of Missouri.
(18) It’s thoroughly appropriate that the last large-scale piece he completed was a community and children’s opera, The Hogboon, which will receive its first performance at the Barbican in London in June ; it’s based on an Orkney legend of supernatural beings who inhabit the prehistoric burial mounds that are found all over the islands, and who are entirely benign.
(19) The world's universities overflow with economic research proving beyond doubt that contemporary capitalist economies do not function as if their denizens were prehistoric humans trading nuts and berries at the edge of the forest – the great delusion of free market economics.
(20) The comparative analysis of parasitological findings illustrates the effects of changing subsistence strategies and varying life-style on prehistoric human parasitism.