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It is helical and has a sharp bend just outside the outer membrane ; this " hook " allows the axis of the helix to point directly away from the cell.
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is and helical
The icosahedral shape, which has 20 equilateral triangular faces, approximates a sphere, while the helical shape is cylindrical.
The helical nature of the individual flagellar filament is critical for this movement to occur.
The pyrrolidine rings keep out of each other ’ s way when the polypeptide chain assumes this extended helical form, which is much more open than the tightly coiled form of the alpha helix.
The screw dislocation is more difficult to visualise, but basically comprises a structure in which a helical path is traced around the linear defect ( dislocation line ) by the atomic planes of atoms in the crystal lattice.
Carry propagation is accomplished by a set of spiral arms in the back that poll the carry levers in a helical manner so that a carry at any level can increment the wheel above by one.
As the dough fries, it stiffens into a helical tube ; it is then removed immediately and sprinkled with honey and crushed walnuts.
For the case of Bragg reflection only the lowest-order reflection is allowed if the light is incident along the helical axis, whereas for oblique incidence higher-order reflections become permitted.
Cholesteric liquid crystals also exhibit the unique property that they reflect circularly polarized light when it is incident along the helical axis and elliptically polarized if it comes in obliquely.
Unlike most machine pistols, which use magazines in the pistol grip or in a vertical box, the M950 uses a 50-round or 100-round helical magazine which is mounted parallel to the barrel.
To get a sense of how the helical magazine appears, and how it is mounted, one can imagine a machine pistol with a bulky optical scope mounted on the picatinny rail on the top of the weapon.
Circular dichroism is another laboratory technique for determining internal beta sheet / helical composition of proteins.
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves (" rifling ") cut into the barrel walls.
The most stable and dense form of selenium has a gray color and hexagonal crystal lattice consisting of helical polymeric chains, wherein the Se-Se distance is 237. 3 pm and Se-Se-Se angle is 130. 1 degrees.
; Heliotron: A stellarator configuration in which a helical coil is used to confine the plasma, together with a pair of PF coils to provide a vertical field.
In mechanical engineering, force orthogonal to the main load ( such as in parallel helical gears ) is referred to as thrust.
The hélicon is an instrument that is wrapped in a helical shape and can thus be worn around the player's body, facilitating marching activities.
A beam coupling, also known as helical coupling, is a flexible coupling for transmitting torque between two shafts while allowing for angular misalignment, parallel offset and even axial motion, of one shaft relative to the other.
The wire is wrapped around the corner post and wrapped onto a special, gritted helical wire which also wraps around the incoming wire, with friction holding it in place.
The flagellar filament is the long helical screw that propels the bacterium when rotated by the motor, through the hook.
Spinning tube, commonly called spiral CT, or helical CT in which an entire X-ray tube is spun around the central axis of the area being scanned.
is and has
`` And if the dive goes OK he has the exclusive import rights to your line for this country, is that right ''??
In fact it has caused us to give serious thought to moving our residence south, because it is not easy for the most objective Southerner to sit calmly by when his host is telling a roomful of people that the only way to deal with Southerners who oppose integration is to send in troops and shoot the bastards down.
As it is, they consider that the North is now reaping the fruits of excess egalitarianism, that in spite of its high standard of living the `` American way '' has been proved inferior to the English and Scandinavian ways, although they disapprove of the socialistic features of the latter.
Historically, however, the concept is one that has been of marked benefit to the people of the Western civilizational group.
While the pattern is uneven, some having gained more than others, nationalism has in fact served the Western peoples well.
But it is more than irony: one of the main reasons why nationalism is no longer a tenable concept is because it has spread throughout the planet.
While sovereignty has roots in antiquity, in its present usage it is essentially modern.
It has nothing of the proud stride of the trained runner about it, it is not a lope, it is not done with style or verve.
It is softened by the saltbush and the bluebush, has a peaceful quality, the hills roll softly.
The music director of the Pittsburgh Symphony Orchestra, William Steinberg, has molded his group into a prominent musical organization, which is his life.
`` Now that Bruno Walter is virtually in retirement and my dear friend Dimitri Mitropoulos is no longer with us, I am probably the only one -- with the possible exception of Leonard Bernstein -- who has this special affinity for and champions the works of Bruckner and Mahler ''.
Even though in most cases the completion of the definitive editions of their writings is still years off, enough documentation has already been assembled to warrant drawing a new composite profile of the leadership which performed the heroic dual feats of winning American independence and founding a new nation.
It is interesting, however, that despite this strong upsurge in Southern writing, almost none of the writers has forsaken the firmly entrenched concept of the white-suited big-daddy colonel sipping a mint julep as he silently recounts the revenue from the season's cotton and tobacco crops ; ;
But the South is, and has been for the past century, engaged in a wide-sweeping urbanization which, oddly enough, is not reflected in its literature.
In the meantime, while the South has been undergoing this phenomenal modernization that is so disappointing to the curious Yankee, Southern writers have certainly done little to reflect and promote their region's progress.
An approach that has appealed to some choreographers is reminiscent of Charles Olson's statement of the process of projective verse: `` one perception must immediately and directly lead to a further perception ''.
The process stipulates that the choreographer sense the quality of the initial movement he has discovered and that he feel the rightness of the quality that is to follow it.
is and sharp
all is seen and felt and experienced, the observation is sharp and the imagination lively.
The short poems grouped at the end of the volume as `` Thoughts in Loneliness '' is, as Professor Book indicated, in sharp contrast with the others.
He has also enjoyed a successful career as an entertainer ( his records have sold in the millions ) and is a sharp businessman.
He tends to underestimate -- or perhaps to view charitably -- the brutality and the violence of the age, so that there is an idyllic quality in these pages which hazes over some of its sharp reality.
The scene is etched in sharp detail, the military problems brilliantly explained, and the excitement and importance of the battle made evident.
The Deerstalker points with the ease, speed and precision of a fine imported double shotgun, and its trigger pull is light and sharp.
The instrument is shown in Fig. 1 and consists essentially of a hard, sharp, tungsten carbide knife which is pushed along the substrate to remove the coating.
Generally the first salvo of a tsunami is a rather sharp swell, not different enough from an ordinary wave to alarm casual observers.
The dialogue is sharp, witty and candid -- typical `` don't eat the daisies '' material -- which has stamped the author throughout her books and plays, and it was obvious that the Theatre-by-the-Sea audience liked it.
There are some sharp and whipping lines and some hilariously funny situations -- the best of the latter being a mass impromptu plunge into a nightclub tank where a `` mermaid '' is performing.
When scratched with a sharp implement, an exothermic reaction occurs and white fumes are given off as metallic antimony is formed ; when rubbed with a pestle in a mortar, a strong detonation occurs.
Because the beaks of giant squids have been found embedded within lumps of ambergris, scientists have theorised that the substance is produced by the whale's gastrointestinal tract to ease the passage of hard, sharp objects that the whale might have eaten.
Church, Ministry and Sacraments in the New Testament Paternoster Press: 1993, p. 92f </ ref > Moving on to Ignatius of Antioch, Barrett states that here we find a sharp distinction between ' presbyter ' and ' bishop ': the latter now stands out as " an isolated figure " who is to be obeyed and without whom it is not lawful to baptise or hold a love-feast .< Barrett, C. K.
This is suggested by the sharp and frequent change in dynamics from forte to piano.
If the above errors be eliminated, the two astigmatic surfaces united, and a sharp image obtained with a wide aperture — there remains the necessity to correct the curvature of the image surface, especially when the image is to be received upon a plane surface, e. g. in photography.
Even if the image is sharp, it may be distorted compared to ideal pinhole projection.
The magnification in an atom is due to the projection of ions radially away from the small, sharp tip.
Mouthfeel is full and smooth, with significant alcohol, although this should not be hot or sharp.
As the endmost edge becomes dull, it can be broken off the remaining blade, exposing the next section, which is sharp and ready for use.
This design was introduced by Japanese manufacturer Olfa Corporation in 1956 as the world's first snap-off blade and was inspired from analyzing the sharp cutting edge produced when glass is broken and how pieces of a chocolate bar break into segments.
This is likely to have exchange rate implications: a sharp loss of value in the deficit economy ’ s exchange rate with the surplus economy ’ s currency will change the relative price of tradable goods, and facilitate a return to balance or ( more likely ) an over-shooting into surplus the other direction.
Incisors are retained by carnivorans and the third incisor is commonly large and sharp ( canine-like ).
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