Tortoises

Schild-knorpel, m. thyroid cartilage, -kraut, n. skullcap Scutellaria), -krote, /. turtle, tortoise. -laus, /. cochineal insect, -part, n. tortoise shell. 

Recently Blake et al.153) made such studies in the case of human (HL) and tortoise egg-white (TEWL) lysozyme based on crystallographic refinements at 1,5 and 1,6 A resolution, respectively. By these investigations they attempted to obtain information on the perturbations of water structure in the hydration shell by neighboured protein molecules and by high salt concentrations as well as on the degree of order of the bound water. The authors came to the conclusion that the number of ordered water molecules are 128 in TEWL and 140 in HL, whereas the overall content is made up of 650 and 350 water molecules per lysozyme molecule. 

Sampson HA, Mendelson L, Rosen JP Fatal and near-fatal anaphylactic reactions to food in children and adolescents. N Engl J Med 1992 327 380-384. Vercelli D Genetic regulation of IgE responses Achilles and the tortoise. J Allergy Clin Immunol 2005 116 60-64. 

Both primitive and advanced forms have been examined for vomeronasal excitation. The turtle VN nerve was the subject of EOG recordings elicited by small organic molecules and by specific signal compounds (Tucker, 1963 Hatanaka, 1987). The simple arrangement of the chelonian accessory area (Fig. 2.8) allows air or liquid delivery hence the preferred odourant vehicle varies with habitat across the aquatic or terrestrial turtles, and the land tortoises (Chap. 1 and Halpem, 1992). 

Rose F., Dotman R. and Wraver G. (1969). Electrophoresis of Tortoise (Gopherus) chin-gland extracts. Comp Biochem Physiol 29, 847-851. 

My secretary came in to announce that the client in the outer office was impatient. Whatever the matter was — a will to prepare, a divorce, a deed — I handled it before going into the adjoining office to face my brother Herb. He looked up from his desk. Behind tortoise-shell glasses he blinked slowly as he always does to hide his incessant curiosity. 

Consequently, in 2000, Singapore Technologies created three investment clubs, unofficially called Tortoise Clubs. The corporate human resources department tapped approximately thirty executives from various parts of ST and asked them to form three different venture investment clubs. The mission of each was to manage a fund that would invest in companies founded by ST staff. One was Neo Kok Beng, an engineer who joined Singapore Technologies computer subsidiary and had worked in a variety of technical and business development positions. He comments ... 

Benzodiazepines. The introduction of the benzodiazepines represented a significant advance in the treatment of panic disorder. In contrast to MAOIs and TCAs, the benzodiazepines begin to provide relief the very first day of treatment, and many patients experience a complete response by the end of the second week of therapy. All benzodiazepines should theoretically alleviate the symptoms of a panic attack at comparable doses, but the benzodiazepines of choice are alprazolam (Xanax, Xanax XR) and clonazepam (Klonopin). It likely is not coincidental that these two are among the highest potency benzodiazepines. However, they differ considerably from a pharmacokinetic standpoint. If clonazepam is the tortoise of benzodiazepines, then alprazolam is the hare. 

Temperature may significantly affect chemoreception. For instance, electrical responses to amylacetate delivered to olfactoiy receptors of a tortoise, Gopherus polyphemus, were little affected by air temperatures between 20 and 30 °C at the nares but changed considerably above and below that range. Up to - -35 °C and down to -1-10 °C, the olfactory response was a monotonic slowly decreasing function of temperature (Tucker, 1963 see also Grundvig etal., 1967). 

FIGURE 3.6 Rathke s glands in turtles and tortoises. Axillary (a) and inguinal (i) pores (gland openings) are shown in Chelonia mydas. (From Ehrenfeld and Ehrenfeld, 1973.)... 

Land tortoises Testudo hermannt), especially males, caught in the wild and displaced 500-1000 m returned to the point of their capture. However, if their olfaction was impaired by washing the nasal cavity with zinc sulfate, their... 

Tortoises can distinguish sex by chemical cues. A mixture of fatty acids has been extracted from the chin glands of males of several species of Gopherus. Applied to the head of a plaster tortoise, these fatty acids trigger head bobbing in females, a component of courtship, while males rammed the models in an aggressive manner (Rose, 1970). 

FIGURE 11.19 Condensed tannin concentrations in plants eaten to various degrees by giant tortoises on Adabra Island. (After Swain, 1979.)... 

Giant tortoises [Gcochcloncgigantca) on Aldabra Island in the Seychelles archipelago are more likely to feed on certain plant species, the less tannins they contain (Swain 1979 Fig. 11.19). 

Reptiles Galapagos tortoise 11-12, up to 20 days Rick and Bowman, 1961... 

Rose, F. L. (1970). Tortoise chin gland fatty acid composition behavioral significance. ComparativeBiochemistry and Physiology 32,577-580. 

There has always been an abundance of natural fibers and elastomers, but few plastics. Of course, early humans employed a crude plastic art in tanning the protein in animal skins to make leather and in heat-formed tortoise shells. They also used naturally occurring tars as caulking materials and extracted shellac from the excrement of small coccid insects Coccus laced). 

Giant Tortoise (Testudo gigantea) / "Tortoise Turf" [P]. (2>... 

Snapping turtle, Chelydra serpentina Gopher tortoise, Gopherus polyphemus Common mud turtle, Kinosternon sabrubrum Missouri slider, Trachymys floridana hoyi Peninsula cooter, Pseudemys floridana pennisularls... 

Find the two different times and add them together. The time that the lady-bug spent on the tortoise is found by dividing 0.2 mile by 3 feet per minute. 

In the classic story of the tortoise and the hare, the tortoise is slow and steady, and the hare is just too sure of himself. Consider the next problem as something that may have been the specific details of that story. 

The Problem The tortoise and the hare are both poised at the starting line of a 1-mile race. The tortoise can muster up a full 1-mile-per-hour speed, and the hare boasts a hopping speed of 8-miles-per-hour. The starter s gun sounds, and both take off at their top speed. After one minute, the hare decides he has time to take a nap and snoozes for the next 54 minutes. He wakes up and makes a dash for the finish line. How long does it take him to catch up to the tortoise ... 

The distance that both the tortoise and the hare travel are the precise moment that the hare catches up to the tortoise. The rates are 1-mile-per-hour for the tortoise and 8-miles-per-hour for the hare. The tortoise moves along for t hours, and the hare has t minus 54 minutes (which has to be... 

So the distances are equal and the hare catches up in a little more than one hour. But that s too late. The tortoise crossed the finish line after one hour, and the hare hadn t caught up to him yet, so the tortoise wins, yet again. 

---