Despite inherent inefficiencies, jetting is the primary mode of locomotion for both primitive nautilus and powerful, migratory oceanic squids. |
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During terrestrial locomotion in a quadruped, the manus pushes against the substrate to decelerate, support, and reaccelerate the body. |
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Some evidence indicates that the traction exerted during cell locomotion can concomitantly compact the surrounding network. |
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All species are sleek, raptorial predators, relying on fast locomotion and large mandibles to actively chase down a variety of arthropod prey. |
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With no need for locomotion, the arms and legs withered into pencil thin stumps. |
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They then watched as sporozoites traversed Kupffer cells using a special process distinct from ordinary parasite locomotion. |
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Movement in arboreal and terrestrial environments presents very different functional challenges for locomotion. |
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Though rarely seen, it appears always to be close at hand and never at a loss for means of locomotion and transport. |
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These life forms most likely have appendages for the purpose of locomotion. |
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As her pain made locomotion distressing, the father had to carry his daughter home. |
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The transition to axial locomotion occurs at near maximum sustained swimming speed. |
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However, the transition from cursorial to aerial locomotion and maneuvering was not as simple as growing large wings. |
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The next step in animal locomotion is to subject animals to perturbations and reveal the function of all their parts. |
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Can the central nervous system learn to change the timing of activation of muscles in order to generate proper locomotion? |
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In salamanders, both swimming and ambulatory locomotion involves lateral body bending. |
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Higher-level control of locomotion seems to be more important for humans than for cats. |
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At the first level, one asks how a propulsor is built and how it moves during locomotion. |
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The central experience of aerial locomotion, however, has been so well designed that you can happily spend an hour just swinging around. |
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Conversely, psychomotor stimulants tend to increase locomotion and exploration without altering thigmotaxis. |
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He has not only rewritten the book on theropod myology, but has spent a good many years applying it to locomotion studies. |
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This evaluation of pulling forces associated with box turtle locomotion thus revealed some interesting and, at times unexpected, relationships. |
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An ape is defined by the ability to move through the trees swinging arm over arm in a form of locomotion called brachiation. |
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Brachiation is not only an effective form of locomotion, and it also allows the gibbons to reach and harvest every fruit of a branch. |
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While burrowing, caecilians employ concertina locomotion, lateral undulation, and vermiform locomotion. |
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It covers the fields of neurology, locomotion, cardiovascular and respiratory pathology as well as sphincteral function. |
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The mantle and funnel of squids are essential in generating and modulating thrust for jet locomotion. |
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Large forces generated by perturbations during locomotion may also utilize a greater proportion of geckos' adhesive capacity. |
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Distal radii of catarrhine primates exhibiting different forms of locomotion and hand postures were examined. |
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For each type of aquatic activity we examine unique behaviors or styles of locomotion that may contribute to a decrease in energetic costs. |
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The results revealed that the experimental group significantly outperformed the control group on gross motor skills and locomotion. |
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Crustacean motor neurons subserving locomotion are specialized for the type of activity in which they normally participate. |
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Spines and tube feet surrounding the peristome function in locomotion, burrowing, and food-gathering. |
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Firefly flash and locomotion were observed using IR illumination that did not effect the phototube. |
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The first mutations of a single gene affecting the daily locomotion rhythm were found in the fruit fly Drosophila melanogaster. |
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In mammals, serotonin has been shown to initiate locomotion in decerebrated, curarized rabbits, and in neonatal rats. |
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Examples include territorial defense and foraging behavior of many lizards, birds, rodents, and migratory locomotion in ghost crabs. |
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With regard to the distance traveled before exhaustion, intermittent locomotion can have greater consequences for ectotherms than endotherms. |
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As a result, we may suspect that some tended toward an eel-like style of swimming or an undulating, almost legless type of locomotion on land. |
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But many different functions converge in the head and neck area, including vision, hearing, olfaction, locomotion, and brain volume. |
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Autophobia appears upon diagnosis to proceed from a strong distaste to horseless locomotion on the rural highway by those who live in cities. |
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Serotonin also regulates or modulates a variety of behaviors in many animal species, including aggression, feeding, learning, locomotion, sleep, and mood. |
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Pocket mice are smaller, and while they are saltatorial, their hind limbs are not as modified as those of kangaroo rats and their locomotion is primarily quadrupedal. |
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The walking gait maneuver is the body's natural means of locomotion. |
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We, as bipeds, creatures with two legs, move with bipedal locomotion. |
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That may relate to improved locomotion which is very important for young ducklings because they leave the nest and swim less than a day after hatch. |
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As with enlarged leg musculature, larger tarsi may be linked to improved adeptness at locomotion for more effective foraging and predator evasion. |
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This is in striking contrast to phorbol esters, which mimic G q pathway-produced DAG and cause strongly hyperactive locomotion within 1-2 hr of omnidirectional contact. |
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Accordingly, the role of vertebral rotation in synapsid locomotion might be better investigated in terms of its effect on limb extension and recovery. |
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The tadpoles can also turn in much wider arcs, which they do spontaneously, when they initiate swimming from rest, and in the course of normal locomotion. |
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The other two layers show angles of 50-60 deg as would be predicted by the hydrostatic skeleton model of internal concertina locomotion in caecilians. |
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This suggestion is based on the observation that locomotion was the primitive function of the hypaxial muscles that are responsible for costal ventilation in modern amniotes. |
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A conspicuous feature of fish locomotion is the wide diversity of both propulsors and the way these propulsors move and interact with the water to generate propulsive forces. |
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During vertical movements, animals can take advantage of gravity or positive buoyancy to permit unpowered downward or upward locomotion for a longer period. |
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Because many desert rodents that footdrum, such as kangaroo rats, inhabit open habitats and tend to forage in areas with little cover, locomotion for escape is well developed. |
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Likewise, in a famous passage, Buridan is driven by his own experience to reject Ockham's explanation of condensation and rarefaction as kinds of locomotion. |
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If cattle become depleted of sodium salts, they show increased locomotion directed to searching for these. |
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Our research will refer to the prosthesis and orthesis of the human foot, for the stability and locomotion rehabilitation and correction. |
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According to lead researcher Dr Nina Schaller, a small intertarsal muscle plays a crucial role in ostrich locomotion. |
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The sixth prosomal appendage is modified in both xiphosurids and chasmataspidids for use in locomotion or burrowing. |
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The vertebrae have projections that allow for strong muscle attachment enabling locomotion without limbs. |
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They have developed several different modes of locomotion to deal with particular environments. |
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Lateral undulation is the sole mode of aquatic locomotion, and the most common mode of terrestrial locomotion. |
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Terrestrial lateral undulation is the most common mode of terrestrial locomotion for most snake species. |
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This mode of locomotion is slow and very demanding, up to seven times the cost of laterally undulating over the same distance. |
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While on tree branches, snakes use several modes of locomotion depending on species and bark texture. |
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In the feet the big toe moved into alignment with the other toes to help in forward locomotion. |
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Crocodilians also have the functional equivalent of a diaphragm by incorporating muscles used for aquatic locomotion into respiration. |
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Some mammals are bipeds, using only two limbs for locomotion, which can be seen in, for example, humans and the great apes. |
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Mammals show a vast range of gaits, the order that they place and lift their appendages in locomotion. |
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Now, a pair of biomechanics theorists say that they've captured the essence of what makes human locomotion as thrifty as it is. |
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The muscular foot that most snails use for locomotion has been modified in the pteropods into delicate fins for swimming. |
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Terrestrial locomotion is easier for phocids on ice, as they can sled along. |
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Lackadaisical, Lenten-faced Lammergeier laying lethargic locomotion, lick-for-leather, lightning-before-death lingers. |
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Although adults do not use their tube feet for locomotion, very young stages use them as stilts and even serve as an adhesive structure. |
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They provide a source of locomotion for fish and some other forms of marine life. |
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The most obvious theme relating to British Railways was the decline of steam locomotion and its replacement with diesels. |
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The limbs of this archaeocete were adapted to swimming, but terrestrial locomotion was still possible. |
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This crucial genetic alteration helps create the specialized limbs required for volant locomotion. |
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They crawl across the sea floor using their flexible arms for locomotion. |
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Several other characteristics, mostly associated with improved locomotion and feeding, also mark the ascendancy of teleosts above the ctenosquamate level of development. |
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By that measure, Nehlig's team found, the brain activity of animals given caffeine rose in brain regions involved in locomotion, mood, and awakeness. |
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It later moved from horse power to steam locomotion, and finally converting to electric trams, before closing in January 1960, in favour of motor buses. |
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By comparison, terrestrial locomotion by phocids is more cumbersome. |
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Its CAD model will be modeled and analyzed for prototyping some orthesis serving to improve standing and locomotion parameters of handicapped persons. |
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The pelvic modifications were associated with changes which were not primarily concerned with locomotion, but which rendered the pelvis preadaptive for erect posture. |
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Long bones, which are found in the limb of tetrapods, are not only important for locomotion and supporting the weight of the body, but also host the bone marrow. |
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These Miocene apes all lacked the suite of enhanced specialisations for suspensory locomotion exhibited by the more specialised extant great apes. |
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It was noted that as rotifers age, they stop sexual reproduction, locomotion slows down, and feeding and reaction times become sluggish until the animal dies in about 10 days. |
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This mode of locomotion overcomes the slippery nature of sand or mud by pushing off with only static portions on the body, thereby minimizing slipping. |
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The postcranial elements, which are rarely associated with hyainailourine specimens, indicate an animal capable of a plantigrade stance and adapted for terrestrial locomotion. |
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The antitrochanter serves as a brace to prevent abduction of the hind limb and to decrease stress placed on the femoral head during bipedal locomotion. |
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In general, snakes will use a modified form of concertina locomotion on smooth branches, but will laterally undulate if contact points are available. |
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