At first they were only feathers and dark indistinguishable faces and bodies, hunched over their horses' heads.

At first I thought he had missed.

At first Matilda could not believe her own eyes.

At the first restaurant he sensibly pulled up to go in for his dinner, and as a consequence did not see Cobb strike the open range at the mouth of the canyon and head straight across the swells for Antler.

At the first shot Russ had hurled his mount to the left toward the side of the winding draw.

At first, I thought he was out of his head, talking wildly like this.

At first it had been just a romantic dream of his, the same as the idea of finishing Oxford after the war.

At first glance, this hero seems to be more rather than less of an individualist than any of his predecessors.

At first glance this appears strange: of all people, was not America founded by rugged individualists who established a new way of life still inspiring `` undeveloped '' societies abroad??

At this point Mrs. Frances Cupply, one of Wright's handsome daughters by his first wife, came from the house and tried to calm Miriam as she tore down a no visitors sign and smashed the glass pane on another sign with a rock.

At this point a working definition of idea is in order, although our first definition will have to be qualified somewhat as we proceed.

At the height of the first snowstorm we had, it was impossible for me to get medical attention needed during an emergency.

At two thirty he sent Fujimoto to the top of the wall at the northeast corner of the mission to keep an eye on the ridge road and give a signal when he first glimpsed the approach of Kayabashi's party.

At that time consideration will be given to whether in the light of the United States supplies of rice available for Title 1, disposal, India's production, consumption and stocks of food grains, other imports from the United States and countries friendly to the United States, India's storage capacity, and other related factors, any increase would be possible in the portion of the total rice programmed which is currently planned for procurement during the first year.

At first each child should do a kick-up by himself so that the teacher can determine those ready to work alone, and those who need help.

At first Barco was evasive and shifty.

At first the patient felt stronger, and the hemoglobin rose to 13.8 gm., but on Oct. 20, 1958, he complained of `` caving in '' in his knees.

At first I did not know what she meant ; ;

At any rate, Manchester did not lag far behind the first commercial system which was set up in 1844 between Baltimore and Washington.

At the very first, then, Brumidi was required, by the classically pyramidal shape of his central group, to fill in the triangular space above the seated girl on Liberty's right, before starting on the allegorical figures themselves.

At first the kitchen help was tolerant, but ordered their own supply of white bread for themselves.

At the end of the performance, Dave and Max came out into the brilliantly lit foyer among a surge of gowned and tuxedoed first nighters.

At the Fifteenth Anniversary ( 1896 ) as already quoted, Miss Upton projected with force and eloquence the Spelman of the Future as a college of first rank, with expanding and unlimited horizons.

At first glance, not much of a motive for a man of his standing ; ;

At first the Belgian royal family administered the Congo as its own private property.

At a synapse, the membrane of the axon closely adjoins the membrane of the target cell, and special molecular structures serve to transmit electrical or electrochemical signals across the gap.

" At other exhibits, he remembered how a flashlight that shined on a photoelectric cell created a cracking sound, and how the sound from a tuning fork became a wave on an oscilloscope.

At the nerve ending in the neuromuscular junction, where the impulse is transferred to the muscle cell, the nerve impulse leads to the transfer of vesicles with the neurotransmitter acetylcholine to " active zones " in the presynaptic membrane, where it is released into the synaptic cleft and stimulates the acetylcholine receptor on the muscle.

At the end of this cascade, another class of molecules involved in morphogenesis are molecules that control cellular behaviors ( for example cell migration ) or, more generally, their properties, such as cell adhesion or cell contractility.

At $ 0. 03 / kWh, common off-peak high-voltage line rate in the United States, this means hydrogen costs $ 1. 50 a kilogram for the electricity, equivalent to $ 1. 50 a U. S. gallon for gasoline if used in a fuel cell vehicle.

At first the prisoner thinks that he is locked in a tomb, but he discovers that he is in a cell.

At ADX Florence, McVeigh and Nichols were housed in " Bomber's Row ", the same cell block as Ted Kaczynski, Luis Felipe and Ramzi Yousef.

At fertilization the gametes fuse to form a cell, usually with 46 chromosomes, and either XX female or XY male, depending on whether the sperm carried an X or a Y chromosome.

At first he would receive visitors and wash their feet, but later he confined himself to his cell and opened the window only to give his blessing.

At the cellular level, much of the variance in insulin sensitivity between untrained, non-diabetic humans is explained by two mechanisms: differences in phospholipid profiles of skeletal muscle cell membranes, and in intramyocellular lipid ( ICML ) stores within these cells.

With this method, a much higher charging rate can be used than with a trickle charge, up to 1 C. At this charge rate, looking for a voltage drop, ΔV is approximately 5 – 10mV per cell.

At constant pressure the above relationship produces a Maxwell relation that links the change in open cell voltage with temperature T ( a measurable quantity ) to the change in entropy S when charge is passed isothermally and isobarically.

At rest, each heart muscle cell has a negative charge, called the membrane potential, across its cell membrane.

At least one clinical study suggested nifedipine, one of the dihydropyridines, may reduce mast cell degranulation in patients who exhibit urticaria pigmentosa.

At certain development stages they grow branched projections, the dendrites that give the cell its name ( δένδρον or déndron being Greek for " tree ").

At the right, the lower trace shows a negative wave that corresponds to a current sink caused by positive charges entering cells through postsynaptic glutamate receptors, while the upper trace shows a positive wave that is generated by the current that leaves the cell ( at the cell body ) to complete the circuit.

At an uncertain date he became a monk at St Albans Abbey ; afterwards he was appointed prior of the cell of Belvoir, but he forfeited this dignity in the early years of Henry III, having been found guilty of wasting the endowments.

At the library, he meets co-worker Liz Gold, an unworldly young Jewish woman, who is the secretary of her local cell of the Communist Party of Britain.

At this point a T-cell will either progress towards the Helper / Killer linage or the γδ T cell lineage.

At this stage the thymocyte must produce a TCRβ beta chain that can be translated into protein and travel to the cell surface with a Pre-T alpha chain.

At a pH equal to the protonated base's pKa, the protonated ( ionized ) and unprotonated ( unionized ) forms of the molecule exist in equimolar amounts but only the unprotonated base diffuses readily across cell membranes.