The thermal relations of the freshwater triclad flatworm, Dugesia dorotocephala (Turbellaria: Tricladida)

AbstractThe mean body temperature of T. hermanni in woodland in France was 28.5 °C (August 1981). Body temperatures were elevated above air temperature and indirect evidence for basking and selection of an optimal microenvironment is discussed.

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Proposition of a low cost field assay to determine antiproliferative properties of indigenous plants using Dugesia dorotocephala (brown planaria)

Scientific Research and Essays ◽

10.5897/sre2014.6112 ◽

2015 ◽

Vol 10 (4) ◽

pp. 144-149 ◽

Cited By ~ 2

Author(s):

Dushimemaria Florence ◽

R Mumbengegwi Davis

Keyword(s):

Low Cost ◽

Indigenous Plants ◽

Dugesia Dorotocephala ◽

Field Assay

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Automobile in the Disposition of Energy-Saving Houses

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.12.158 ◽

2014 ◽

Vol 12 ◽

pp. 158-163

Author(s):

Josef Chybík

Keyword(s):

Energy Consumption ◽

Energy Saving ◽

Thermal Insulation ◽

Open Space ◽

Thermal Bridges ◽

Structural Engineers ◽

Thermal Relations

In the disposition of energetically economic houses, automobile abandons its stereotype held for so many years according to which it was placed to rest “under one roof” with other residential and utility rooms. However, this diagram shows a range of collisions manifesting with difficult building details, with occurrence of thermal bridges and thermal relations. This results in increased financial demands for drafting efficient thermal insulation layers or higher demand for energy consumption necessary to heat up the building. Generally, architects and structural engineers are not sufficiently aware of the fact that at the same time this is a factor that provides higher potential for faster ageing of car bodies and chassis when cars are parked “inside the house” than in means of transport parked in open carports or in an open space. This Paper deals with analyses of this important, yet often omitted or less-known fact.

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Comparative Morphological Studies of Head Development after Decapitation and after Fission in the Planarian Dugesia dorotocephala

Transactions of the American Microscopical Society ◽

10.2307/3225983 ◽

1978 ◽

Vol 97 (3) ◽

pp. 297 ◽

Cited By ~ 12

Author(s):

M. Ruth Nentwig

Keyword(s):

Dugesia Dorotocephala ◽

Head Development ◽

Morphological Studies

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THERMAL INCREMENTS FOR PULSATION-FREQUENCY IN "ACCESSORY HEARTS" OF NOTONECTA

The Journal of General Physiology ◽

10.1085/jgp.10.4.479 ◽

1927 ◽

Vol 10 (4) ◽

pp. 479-500 ◽

Cited By ~ 10

Author(s):

W. J. Crozier ◽

T. J. B. Stier

Keyword(s):

Heart Beat ◽

Pulsation Frequency ◽

Nervous Control ◽

Thermal Relations

The frequencies of pulsation of the "accessory hearts" in the isolated swimming-legs of Notonecta were studied in relation to temperature, with the idea that in such organs central nervous control is impossible, and that in an isolated system irreversibly proceeding toward death it might be expected that further evidence would be found regarding the supposed specific significance of critical thermal increments. A number of values of µ are found, commonly 8,200; 16,200; or 32,200; less frequently 11,400; 19,800; and 24,500. These values are definitely contrasted with that (12,300) typical for heart beat frequencies in arthropods. They exhibit interrelationships of the sorts already found in other cases. There occur also sharp irreversible changes in frequency of pulsation, which may or may not be accompanied by change of increment. The net result is held to be confirmatory of the interpretation of thermal relations proposed in earlier papers.

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