At greater distances from the sun, the situation is still less certain.

At certain critical stages, and only for sound diagnostic reasons, it may be important to accompany family members in their use of these resources if their problem-solving behavior is to be constructive rather than defeating.

At the same time, another purpose of the conference will be to get certain low-wage countries to control textile exports -- especially dumping of specific products -- to high-wage textile-producing countries.

At first, the creators decided the positions of the necessary points to express the outline, eyes, nose, and so on of a certain person.

At first it was employed as a respectful title for any monk, but it was soon restricted by canon law to certain priestly superiors.

Allotropes of iron, ( alpha iron and gamma iron ) showing the differences in atomic arrangement. At a certain temperature, ( usually between and ), the base metal of steel ( iron ) undergoes a change in the arrangement of the atoms in its crystal matrix, called allotropy.

At the Mongol camp near Kars Andrew had met a certain David, who in December 1248 appeared at the court of King Louis IX of France in Cyprus.

At this time Cossa also had some links with local robber bands, often used to intimidate his rivals and attack carriages, this part of Cossa's life isn't widely known, but gave him certain influence and power in the region.

At certain critical water levels it is possible for connections with surrounding water bodies to become established.

At certain times, London has had no overall city government and boroughs were the main unit of local government for Londoners ; in Tokyo, they are known as wards or cities, and have city status, but these still form parts of a larger municipal government which has merged with that of the prefecture.

At a certain point, reports of an IRA sniper operating in the area were allegedly given to the Army command centre.

At the level of the individual, pressing psychological needs may influence the process, and certain of our universal mental tools may impose epistemic ' blind spots '.

At certain points in the 1970s, " Chicano " was the preferred term for reference to Mexican-Americans, particularly in the scholarly literature.

At certain times of life, the columnar epithelium is replaced by metaplastic squamous epithelium, and is then known as the transformation zone.

At the same time, however, certain Conservative institutions, particularly day schools, have shown significant growth.

At the same time, he mentioned that certain other books, including five deuterocanonical books but also the Didache and the Shepherd of Hermas, while not being part of the canon, " were appointed by the Fathers to be read ".

At various times certain gods became preeminent over the others, including the sun god Ra, the creator god Amun, and the mother goddess Isis.

At the same time, the system's commercial regimentation and focus on glamorous escapism discouraged daring and ambition beyond a certain degree, a prime example being the brief but still legendary directing career of the iconoclastic Erich von Stroheim in the late teens and the ‘ 20s.

At certain intervals February was truncated to 23 or 24 days ; and a 27-day intercalary month, Intercalaris, was inserted immediately after February to realign the year with the seasons.

At home, Frigg went with a certain Mith-Othin and took over Odin's properties, until Odin came back and drove them away.

At one point, Fabius was called by the priests to assist with certain sacrifices, and as such, Fabius left the command of the army in the hands of Minucius during his absence.

At a certain point (~ 70 % crystalline ) the glass-ceramic has a net CTE near zero.

At certain times in the film small vibrators attached to the underside of some seats within the auditorium were activated to give some audience members a tingle.

At certain points, a command would be given to the phalanx or a part thereof to collectively take a certain number of steps forward ( ranging from half to multiple steps ).

It is located south of Asia Minor, the Anatolian peninsula of the Asian ( or Eurasian ) mainland ( now part of modern-day Turkey ), so it may be included in Western Asia or the Middle East: At a confluence of Western Asia, Southern Europe, and Northern Africa, Cyprus has had lengthy periods of mainly Greek and intermittent Anatolian, Levantine, Byzantine, and Western European influences.

At various periods, and particularly during the Middle Ages, the citadel-having its own fortifications, independent of the city walls-was the last defence of a besieged army, often held after the town had been conquered.

At least, three short periods in the history of Chicago have had a lasting influence on American Literature.

At all times, however, through the Hellenistic periods, Roman, and throughout Western history into the present day, several of his characteristic objects are present as identification, but not always all together.

At heights of above, in the thermosphere, the atmosphere is so thin that free electrons can exist for short periods of time before they are captured by a nearby positive ion.

At those times when John was preparing for campaigns in Normandy, for example, huge quantities of silver had to be withdrawn from the economy and stored for months, which unintentionally resulted in periods during which silver coins were simply hard to come by, commercial credit difficult to acquire and deflationary pressure placed on the economy.

At other periods, mortality was comparatively lower.

At the age of thirty-three, this naturally indolent and self-indulgent woman, with little knowledge and no experience of affairs, found herself at the head of a great empire at one of the most critical periods of its existence.

At periods in his life, Tracy attended Mass regularly.

At the point when a woman of menopausal age has had no periods or spotting for 12 months, she is considered to be one year into post-menopause.

At some points, usually during Rivers's vacation period, longer periods could be devoted to the observations.

At Olympia, for example, they were set apart from the general population for lengthy training periods and the observation of a complex series of prohibitions that included abstinence from intercourse.

At least three periods of regional deformation have been identified, the most important being large scale isoclinal folding with axes aligned north-west.

At the time of Arrian's daily life, the koine, or " common Greek " of the Hellenistic and Roman periods was in universal spoken use.

At one point, however, he incorrectly resolved that the periods of oscillation of two pendulums were in the same ratio as their lengths, but he later realized and corrected the error.

At the same time, some historians point out that this periodization tends to regard the periods of stable united dynasties as " normal " and " standard " and the periods in between as " abnormal.

At later periods, certain type of stories included in sīra developed into their own separate genres.

At the same time he also studied the older Sung, Yuan and Muromachi periods ’ styles of ink painting by examining scrolls from Mu Chi and Sesshū Tōyō, which he is believed to have gained access to in his time at the Daitoku-ji temple in Kyoto.

At its introduction, the QMC stated that the Type C ration was intended for short-term use for periods not to exceed three days.

At peak periods, additional trains can be put into operation at short intervals ahead of the scheduled train, allowing capacity to be optimised according to demand.

At its zenith, the Mughal Empire, which covered almost the entire Indian subcontinent ( including present day Afghanistan, Pakistan and Bangladesh ), was ruled from Delhi, Agra, and Allahabad during different periods.

At the university, Ranke became deeply involved in the dispute between the followers of the legal professor Friedrich Carl von Savigny who emphasized the varieties of different periods of history and the followers of the philosopher Georg Wilhelm Friedrich Hegel who saw history as the unfolding of a universal story.

At the build up to the peak periods, some trains starting from Hainault depot operate to central London via Grange Hill, Chigwell, Roding Valley and Woodford, although this service is provided merely for operating convenience rather than passenger demand.