An in situ experiment on temperature sensitivity of near-shore benthic foraminifera

1996 ◽  
Vol 26 (1) ◽  
pp. 53-63 ◽  
Author(s):  
C. T. Schafer ◽  
F. E. Cole ◽  
D. Frobel ◽  
N. Rice ◽  
M. A. Buzas
Keyword(s):  
Temperature Sensitivity ◽  
Benthic Foraminifera ◽  
In Situ Experiment ◽  
Near Shore

scholarly journals From small wrinkles to Schallamach waves during rubber friction: In situ experiment and 3D simulation

2021 ◽  
Vol 96 ◽  
pp. 107084
Author(s):  
Cui Zhibo ◽  
Su Zhaoqian ◽  
Hou Dandan ◽  
Li Genzong ◽  
Wu Jian ◽  
...  
Keyword(s):  
3D Simulation ◽  
In Situ Experiment ◽  
Rubber Friction

scholarly journals Lipid biomarkers in Holocene and glacial sediments from ancient Lake Ohrid (Macedonia, Albania)

2010 ◽  
Vol 7 (11) ◽  
pp. 3473-3489 ◽  
Author(s):  
J. Holtvoeth ◽  
H. Vogel ◽  
B. Wagner ◽  
G. A. Wolff
Keyword(s):  
Organic Matter ◽  
Lipid Biomarkers ◽  
Lake Ohrid ◽  
Labile Organic Matter ◽  
Glacial Sediments ◽  
Plant Matter ◽  
Lipid Biomarker ◽  
First Results ◽  
Near Shore

Abstract. Organic matter preserved in Lake Ohrid sediments originates from aquatic and terrestrial sources. Its variable composition reflects climate-controlled changes in the lake basin's hydrology and related organic matter export, i.e. changes in primary productivity, terrestrial plant matter input and soil erosion. Here, we present first results from lipid biomarker investigations of Lake Ohrid sediments from two near-shore settings: site Lz1120 near the southern shore, with low-lying lands nearby and probably influenced by river discharge, and site Co1202 which is close to the steep eastern slopes. Variable proportions of terrestrial n-alkanoic acids and n-alkanols as well as compositional changes of ω-hydroxy acids document differences in soil organic matter supply between the sites and during different climate stages (glacial, Holocene, 8.2 ka cooling event). Changes in the vegetation cover are suggested by changes in the dominant chain length of terrestrial n-alkanols. Effective microbial degradation of labile organic matter and in situ contribution of organic matter derived from the microbes themselves are both evident in the sediments. We found evidence for anoxic conditions within the photic zone by detecting epicholestanol and tetrahymanol from sulphur-oxidising phototrophic bacteria and bacterivorous ciliates and for the influence of a settled human community from the occurrence of coprostanol, a biomarker for human and animal faeces (pigs, sheep, goats), in an early Holocene sample. This study illustrates the potential of lipid biomarkers for future environmental reconstructions using one of Europe's oldest continental climate archives, Lake Ohrid.

scholarly journals Distance-dependent defensive coloration in the poison frog Dendrobates tinctorius, Dendrobatidae

2018 ◽  
Vol 115 (25) ◽  
pp. 6416-6421 ◽  
Author(s):  
James B. Barnett ◽  
Constantine Michalis ◽  
Nicholas E. Scott-Samuel ◽  
Innes C. Cuthill
Keyword(s):  
Computational Modeling ◽  
In Situ Experiment ◽  
Warning Signals ◽  
Detection Experiment ◽  
Poison Frog ◽  
Bright Yellow ◽  
Close Range ◽  
Black Color

Poison dart frogs provide classic examples of warning signals: potent toxins signaled by distinctive, conspicuous coloration. We show that, counterintuitively, the bright yellow and blue-black color of Dendrobates tinctorius (Dendrobatidae) also provides camouflage. Through computational modeling of predator vision, and a screen-based detection experiment presenting frogs at different spatial resolutions, we demonstrate that at close range the frog is highly detectable, but from a distance the colors blend together, forming effective camouflage. This result was corroborated with an in situ experiment, which found survival to be background-dependent, a feature more associated with camouflage than aposematism. Our results suggest that in D. tinctorius the distribution of pattern elements, and the particular colors expressed, act as a highly salient close range aposematic signal, while simultaneously minimizing detectability to distant observers.

An in-situ experiment of devices aimed to remediate wandering due to Alzheimer’s disease

2010 ◽  
Vol 9 (2) ◽  
Author(s):  
E. Chabanne ◽  
J.C. Fernandez ◽  
N. Pesenti ◽  
V. Rialle ◽  
N. Vidal
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
In Situ Experiment

scholarly journals Measurements and fire simulation models in road tunnels

2018 ◽  
Vol 196 ◽  
pp. 04077 ◽  
Author(s):  
Peter Danišovič ◽  
Juraj Šrámek ◽  
Michal Hodoň ◽  
Ján Glasa ◽  
Peter Weisenpacher ◽  
...  
Keyword(s):  
Ventilation System ◽  
Simulation Models ◽  
Project Schedule ◽  
Road Tunnel ◽  
Safety Equipment ◽  
In Situ Experiment ◽  
Emergency Event ◽  
Road Tunnels ◽  
Tunnel Safety

Ventilation system of road tunnel is one of the most important parts of the tunnel safety equipment, especially in view of the emergency event in the tunnel with fire. Last year we presented the testing and the first in situ measurements of our project entitled “Models of formation and spread of fire to increase safety of road tunnels”. With regard to our project schedule we performed also the second in situ experiment. Other part of this paper deals with computer simulations of fires of a selected Slovak road tunnel.

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