At hatching, a typical salamander larva has eyes without lids, teeth in both upper and lower jaws, three pairs of feathery external gills and a long, somewhat laterally flattened body and tail with dorsal and ventral fins.

At pH values lower than the pKa of the α-ammonium group ( mean for the 20 common α-amino acids is about 9. 4 ), the nitrogen is predominantly protonated as a positively charged α-ammonium group.

At these lower speeds, ATM provides a useful ability to carry multiple logical circuits on a single physical or virtual medium, although other techniques exist, such as Multi-link PPP and Ethernet VLANs, which are optional in VDSL implementations.

At lower speeds this air has time to " get out of the way ", guided by the air in front of it that is in contact with the aircraft.

At pHs lower than 5 most fish eggs will not hatch and lower pHs can kill adult fish.

At the semi-enclosed bays with major freshwater inflows, such as head of Finnish Gulf with Neva mouth and head of Bothnian gulf with close mouths of Lule, Tornio and Kemi, the salinity is considerably lower.

At higher elevations, where the atmospheric pressure is much lower, the boiling point is also lower.

At the sides of the chest, the breast tissue can extend into the axilla ( armpit ), and can reach as far to the back as the latissimus dorsi muscle, extending from the lower back to the humerus bone ( the longest bone of the upper arm ).

At 21: 00, a fire was observed on the lower decks of the Orient.

At some small angular rate of rotation, however, an element of surface water can achieve lower potential energy by moving outward under the influence of the centrifugal force.

At lower levels the organizational hierarchy was managed by Party Committees, or partkoms ( партком ).

At the lower end of the Totentanz, Death calls, for example, the peasant to dance, who answers:

At the lower end of the electromagnetic spectrum, about 20 Hz to about 20 kHz, are frequencies that might be considered in the audio range.

At lower left is a discrete-time Fourier transform | DTFT, the result of sampling s ( t ).

At 2. 35 Eiffel hoisted a large tricoleur, to the accompaniment of a 25-gun salute fired from the lower level.

At the same time George maintained his correspondence with Luther and Philipp Melanchthon, discussing such questions as the evangelization of monasteries, the use of monastic property for evangelical purposes, and especially the foundation of lower schools for the people and of higher schools for the education of talented young men for the service of church and state.

At the protein level, the halophilic species are characterized by low hydrophobicity, overrepresentation of acidic residues, underrepresentation of Cys, lower propensities for helix formation and higher propensities for coil structure.

At lower levels it can fall to around a year.

At the time of his defeat, he was the longest-serving member of the lower house of the Diet, and he was also the first former prime minister to be defeated at a re-election since 1963.

At lower levels, it acts as a calcium analog, interfering with ion channels during nerve conduction.

At the lower end of the visible light spectrum, EMR becomes invisible to humansinfrared because its photons no longer have enough individual energy to cause a lasting molecular change ( a change in conformation ) in the visual molecule retinal in the human retina.

At lower pressures however the bonding becomes entirely localized into a regular covalent bond.

At higher altitudes, a form of arid shrubland was also present.

At the time, air traffic control consisted of flight numbers, altitudes and headings written on little slips of paper and placed in a case.

At higher altitudes the amount of oxygen ions decreases and lighter ions such as hydrogen and helium become dominant, this layer is the topside ionosphere.

At even higher low earth orbit altitudes atomic oxygen is a significant presence and a cause of erosion for spacecraft.

At the interior's higher altitudes, the average yearly temperature is, and nights are generally cool.

At low altitudes, the B-58 ended up with performance that was only a small improvement over the B-47 it was meant to replace.

At altitudes above, dwarf nothofagus communities are found.

At the time they entered service all three V bombers were capable of altitudes that put them effectively out of reach of the then contemporary gun-armed Soviet interceptors such as the MiG 15, MiG 17, and later MiG 19.

At still higher altitudes up in the mesospere, noctilucent clouds sometimes seen in polar regions in the summer usually appear a silvery white that can resemble brightly illuminated cirrus.

At higher altitudes, the boiling point of liquid in the pressure cooker will be slightly lower than it would be at sea level.

At such altitudes, the reserve parachute is useless.

At higher altitudes, the warm moist air is less dense than the cooler, drier air and the boundary slope reverses.

At higher altitudes smaller-leaved species grow, and in alpine areas there are whipcord species with leaves reduced to thick scales.

At these altitudes, jet engines achieve maximum efficiency over long distances.

At very low altitudes there were only seconds in which to react when spotting an aircraft over local terrain, so a hand-swung weapon was the only possibility, no matter how inaccurate.

At higher altitudes, the sky trends to darker colors, since scattering is reduced due to lower air density ; an extreme example is the moon, where there is no atmosphere and no scattering, making the sky on the moon black even when the sun is visible.

At high altitudes ( greater than two kilometres or 5000 feet ) three minutes is recommended.

At high altitudes the precipitation falls mainly as ice crystals before melting and finally evaporating ; this is usually due to compressional heating, because the air pressure increases closer to the ground.

At burst altitudes of approximately 7 meters / kiloton, a crater is not formed, and correspondingly lower amounts of dust and debris are produced.

At low altitudes the true height of an aircraft relative to an object on the ground needs to be known.

At high speeds and altitudes, calibrated airspeed must be further corrected for compressibility error to give equivalent airspeed ( EAS ).

At other altitudes compressibility error correction may be obtained from a chart.

At the current stage of development, the bottom-lasered type of lightcraft exist as small hand-sized test specimens which have attained altitudes of a few hundred feet.

At high altitudes of the Earth's atmosphere ( greater than 22, 000 feet m ), the partial pressure of oxygen ( required for human respiration ) is low.