It was recognized years ago that the transition from daytime to nighttime propagation conditions, and vice versa, is not an instantaneous process, but takes place over periods of time from roughly 2 hours before sunset until about 2 hours after sunset, and again from roughly 2 hours before sunrise until some 2 hours after sunrise.

Indeed, in some periods of our history and in some neighborhoods the job opportunities have been so good that undoubtedly a great many boys who were potential members of the professions quit school at an early age and went to work.

Over the years, however, the lack of convention in some style guides has made it difficult to determine which two-word abbreviations should be abbreviated with periods and which should not.

These orchestral works are mainly in the galant style and though they show some development toward the late classical they reflect a general weakness in comparison to his operatic works of the same and later periods.

Most subsequent abeyances ( only a few dozen cases ) were settled after a few years, in favour of the holder of the family properties ; there were two periods in which long-abeyant peerages ( in some cases peerages of doubtful reality ) were brought back: between 1838 and 1841 and between 1909 and 1921.

Frank Gaebelein observes that " Greek mercenaries and slaves served in the Babylonian and Assyrian periods, some of whom were undoubtedly versed in Greek music and musical instruments.

In league competitions games may end in a draw, but in some knockout competitions if a game is tied at the end of regulation time it may go into extra time, which consists of two further 15-minute periods.

These events are usually separated by periods of " normal " mood ; but, in some individuals, depression and mania may rapidly alternate, which is known as rapid cycling.

This means that our understanding of the Cambrian biology surpasses that of some later periods.

Short transitional periods, which are marked by some difference in humidity but by little change in temperature, intervene between the alternating seasons.

Its unique relief carvings have a naive dynamic quality that contrast with the rigidity of the figures typical of some other periods.

However in some nations where the elites were able to mobilize popular support for conservative parties, longer periods of political stability were achieved.

One problem was that some of the Zairian soldiers in the area had not received pay for extended periods.

* In March 2009, some EDS employees, based in the USA and Puerto Rico, were informed that their salaries would be cut 10 % during the April 2009 pay periods, albeit with no reduction to drop a salary below $ 40, 000 a year.

Vietnam sent tributary missions to China once in three years ( with some periods of disruptions ) until the 19th century.

Some dishes can be traced back to ancient Greece: lentil soup, fasolada, retsina ( white or rosé wine flavored with pine resin ) and pasteli ( candy bar with sesame seeds baked with honey ); some to the Hellenistic and Roman periods: loukaniko ( dried pork sausage ); and Byzantium: feta cheese, avgotaraho ( cured fish roe ) and paximadi ( traditional hard bread baked from corn, barley and rye ).

Some scholars concur with this view, whereas others argue that the Gulag was neither as large nor as deadly as it is often presented, and it did not have death camps, although during some periods of its history, mortality was high in the labor camps.

Thus began one of the most productive periods in Telemann's life: during his tenure at Eisenach he composed a wealth of instrumental music ( sonatas and concertos ), and numerous sacred works, which included four or five complete annual cycles of church cantatas, 50 German and Italian cantatas, and some 20 serenatas.

Holt's tenure fell during one of the hottest periods of the Cold War era, and his government faced some unenviable foreign policy challenges.

Brother-sister marriages were common during some Roman periods as some census records have shown.

With this new vocabulary, additional vocabulary borrowed from Latin ( with Greek, another approximately one-third of Modern English vocabulary, though some borrowings from Latin and Greek date from later periods ), a simplified grammar, and use of the orthographic conventions of French instead of Old English orthography, the language became Middle English ( the language of Chaucer ).

They can eat only twice in every alternate day, but in between during some special calendar events, they may have to fast longer periods.

Ruling elders are usually laymen ( and laywomen in some denominations ) who are elected by the congregation and ordained to serve with the teaching elders, assuming responsibility for nurture and leadership of the congregation.

These tendencies however were never supported by the First Vatican Council's dogma of papal infallibility and primacy of 1870, but are rather inspired by erroneous private opinions of some Roman Catholic laymen, who tend to identify themselves completely with the Holy See.

Unlike many civil law countries which have some courts on which panels of judges with nearly equal status composed of both legally trained professional judges and lay judges who lack legal training and are not career judges, the United States legal system ( like most Anglo-American legal systems ) makes a clear distinction between professional judges and laymen involved in deciding case who are jurors who are part of a jury.

Zonaras, commenting on Canon 50, wrote, " Because there are some of the Bishops and clergy who depart from virture and play chess ( zatikron ) or dice or drink to excess, the Rule commands that such shall cease to do so or be excluded ; and if a Bishop or elder or deacon or subdeacon or reader or singer do not cease so to do, he shall be cast out: and if laymen be given to chess-playing and drunkenness, they shall be excluded.

In an interesting turn of events, the United States government recognized cantors as the first Jewish clergy, even before rabbis were recognized-as a congregation could be organized and led by a committee of Jewish " laymen ," who would not have the expertise in liturgy a hazzan would have, newly forming congregations in the late 19th and early 20th centuries sometimes hired a hazzan for a synagogue ( and made sure that a kosher butcher was established in the neighborhood ) for some time before setting about hiring a rabbi, seeing the hazzan ( and the butcher ) as a more immediate need.

Outside of the Visitandines, priests, religious, and laymen espoused the devotion, particularly the Capuchins, Margaret Mary's two brothers, and some Jesuits.

Dissatisfaction among some Methodists with regard to the increasingly exclusive power of clergy, particularly bishops, and the exclusion of laymen from the councils of the Church, including the Annual ( regional ) and General ( national ) Conferences.

Some animals such as dogs, horses, great apes, and ( more recently ) dolphins and parrots are typically thought by laymen as intelligent in ways that some other species of animal are not.

Among the Russians, however, the orarion is not usually worn by servers, but only by duly ordained subdeacons and deacons, with the exception that laymen who are blessed to perform some of the functions of subdeacons may sometimes be blessed to wear the orar.

On June 11, 1936, Machen and a group of conservative ministers, elders, and laymen met in Philadelphia to form the Presbyterian Church of America ( not to be confused with the Presbyterian Church in America which was organized some forty years later ).

Saga literature informs us of the mentalities not only of the literate elite, but also to some extent it gives insight to the mentalities of the illiterate laymen.

He rented a house for them near the church of St. Rose and, with the assistance of some pious laymen, ministered to their wants.

The Archbishop also ordained some laymen to the priesthood.

Three inscribed jars, which were presented by some laymen to " the Community of the Four Quarters ", are now in the Peshawar Museum.

Besides educating laymen, Bloet educated his own household clergy, including sending some of them to study under Ivo, Bishop of Chartres.

Both scholars and laymen accepted some of these explanations.

The style is rather more sophisticated than in some 14th century reworkings, with elegant running animals on small mounts at the corners, and the goldsmith who signed it, John O Bardan, is recorded living at Drogheda ; by now goldsmiths in Ireland, as elsewhere in Europe, were usually laymen ( NMI, R2834, 16. 7 cm high ).

On April 23, Crowley confronted six laymen ( some sources say choristers ) of St Giles who had come to the church in surplices for a funeral.

I have been privileged to know some great clergymen in my day ... but I have also known and loved some truly great laymen, men whose lives and works matched their faith ".

In some of them theological instruction is given both to clerics and to laymen.

Due to the constructions and associated historical events, some of which are millennia old, these sites are of high universal value ; they are visited by many pilgrims, both laymen and the clergy ( prominently Buddhist ), as well as by local and foreign tourists.

McGraw's advice and methods have drawn criticism from some fellow psychotherapists as well as from some laymen.