Indoor Hibernation of Helix aspersa Juveniles

2020 ◽  
Author(s):  
George Andrei Draghici ◽  
Cristina Deheleana ◽  
Razvan Susan ◽  
Delia Berceanu-Văduva ◽  
Dragoş Nica
Keyword(s):  
Helix Aspersa

scholarly journals Dose-dependent effects of lead and cadmium and the influence of soil properties on their uptake by Helix aspersa: an ecotoxicity test approach

Ecotoxicology ◽  
2021 ◽  
Vol 30 (2) ◽  
pp. 331-342
Author(s):  
Aboubakre Seddik Sahraoui ◽  
Rudo A. Verweij ◽  
Hadjer Belhiouani ◽  
Oumnya Cheriti ◽  
Cornelis A. M. van Gestel ◽  
...  
Keyword(s):  
Soil Properties ◽  
Helix Aspersa ◽  
Ecotoxicity Test ◽  
Lead And Cadmium ◽  
Dose Dependent

Evidence for a dopamine inhibitory post-synaptic potential in the brain of Helix aspersa

1971 ◽  
Vol 2 (5) ◽  
pp. 15-26 ◽  
Author(s):  
R.J. Walker ◽  
K.L. Ralph ◽  
G.N. Woodruff ◽  
G.A. Kerkut
Keyword(s):  
Helix Aspersa ◽  
Synaptic Potential ◽  
The Brain ◽  
Post Synaptic Potential

The Evaporation of Water from Helix Aspersa

1964 ◽  
Vol 41 (4) ◽  
pp. 783-792
Author(s):  
JOHN MACHIN
Keyword(s):  
Air Flow ◽  
Complex Form ◽  
Ambient Air ◽  
Helix Aspersa ◽  
Flat Surfaces ◽  
Wind Speeds ◽  
Low Wind Speeds ◽  
Rate Of Evaporation ◽  
Snail Helix Aspersa

1. The construction and use of a wind-tunnel apparatus is described in which measurements of evaporation under controlled conditions of temperature, humidity and air flow can be made. 2. Two mathematical formulae, applicable to evaporation in relatively low wind speeds, are described. It is suggested that a promising approach to evaporation from moist-skinned animals is provided by the application of Leighly's formula: E = K(p0-pd)c(v/x)n, where the rate of evaporation (E) is expressed in terms of the vapour pressure at the evaporating surface (p0) and in the ambient air (pd), the wind speed (v) and the length of the evaporating surface parallel to the wind (x). The constant, K, is calculated independently and the terms n and c are left for empirical determination. 3. Values of n and c for different types of evaporating surface are given together with the method used in their calculation. Those relating to flat evaporators and to the snail, Helix aspersa, are shown to differ significantly. 4. In general n increases and c decreases as the amount of air disturbance caused by the snail increases. 5. The fact that n for flat surfaces is in good agreement with previously established theory is taken as evidence that Leighly's formula may be validly applied. 6. The combined determination of n and c is introduced as a convenient assessment of a complex form in terms of air flow and evaporation.

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