Evaluation of stress induced by flight activity by measuring the hormonal response

1996 ◽  
Vol 21 (3) ◽  
pp. 217-228 ◽  
Author(s):  
Stefano Farrace ◽  
Roberto Biselli ◽  
Luca Urbani ◽  
Cristiano Ferlini ◽  
Claudio Angelis
Keyword(s):  
Flight Activity ◽  
Hormonal Response

Megestrol attenuates hormonal response to CCK-4

2004 ◽  
Vol 36 (05) ◽  
Author(s):  
T Raedler ◽  
H Jahn ◽  
B Goedecken ◽  
D Gescher ◽  
M Kellner ◽  
...  
Keyword(s):  
Hormonal Response

Crop infestation by aphids is related to flight activity detected with 75 metre high suction traps

2004 ◽  
Vol 57 ◽  
pp. 227-232 ◽  
Author(s):  
D.A.J. Teulon ◽  
M.A.W. Stufkens ◽  
J.D. Fletcher
Keyword(s):  
Positive Relationship ◽  
Rhopalosiphum Padi ◽  
Flight Activity ◽  
Aphid Infestation ◽  
Potato Aphid ◽  
Suction Traps ◽  
Suction Trap ◽  
Trap Catches ◽  
The Relationship ◽  
High Suction

The flight activity of aphid pests of wheat potato lettuce and squash is currently monitored in New Zealand using 75 m suction traps However there has been little research comparing aphid suction trap catches with crop infestation levels The relationship between the average number of aphids (Rhopalosiphum padi) sampled from wheat plants and the average number of aphids caught in weekly 75 m suction trap samples was examined A significant positive relationship indicated that numbers of aphids caught in suction traps reflected the numbers of aphids infesting wheat fields In another experiment potato aphid flights (mostly Myzus persicae) caught in a 75 m suction trap were compared with a nearby windvane trap Aphid numbers in both traps reflected similar trends However the suction trap caught approximately 10 times more aphids than the windvane trap Thus 75 m suction traps provide a useful tool for assessing aphid infestation levels in crops

Attenuating the hormonal response to rigid bronchoscopy; comparison between iv fentanyl, dexmedetomidine or lidocaine

2019 ◽  
Vol 23 (1) ◽  
pp. 127-134
Author(s):  
Al Hadad Mousa ◽  
Ahmed Abd El-Mabood ◽  
Hamza Mahmoud ◽  
Bahaa Refaie
Keyword(s):  
Rigid Bronchoscopy ◽  
Hormonal Response

scholarly journals Flight activity promotes reproductive processes in the fall armyworm, Spodoptera frugiperda

2021 ◽  
Vol 20 (3) ◽  
pp. 727-735 ◽  
Author(s):  
Shi-shuai GE ◽  
Wei HE ◽  
Li-mei HE ◽  
Ran YAN ◽  
Hao-wen ZHANG ◽  
...  
Keyword(s):  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Flight Activity ◽  
Reproductive Processes

scholarly journals Thermal limits for flight activity of field-collected Culicoides in the United Kingdom defined under laboratory conditions

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Laura A. Tugwell ◽  
Marion E. England ◽  
Simon Gubbins ◽  
Christopher J. Sanders ◽  
Jessica E. Stokes ◽  
...  
Keyword(s):  
Companion Animals ◽  
Flight Activity ◽  
Cold Temperature ◽  
Threshold Temperature ◽  
Thermal Limits ◽  
Laboratory Conditions ◽  
North East ◽  
Temperature Thresholds ◽  
South East England ◽  
The Uk

Abstract Background Culicoides biting midges (Diptera: Ceratopogonidae) are biological vectors of internationally important arboviruses and inflict biting nuisance on humans, companion animals and livestock. In temperate regions, transmission of arboviruses is limited by temperature thresholds, in both replication and dissemination of arboviruses within the vector and in the flight activity of adult Culicoides. This study aims to determine the cold-temperature thresholds for flight activity of Culicoides from the UK under laboratory conditions. Methods Over 18,000 Culicoides adults were collected from the field using 4 W down-draught miniature ultraviolet Centers for Disease Control traps. Populations of Culicoides were sampled at three different geographical locations within the UK during the summer months and again in the autumn at one geographical location. Activity at constant temperatures was assessed using a bioassay that detected movement of adult Culicoides towards an ultraviolet light source over a 24-h period. Results The proportion of active adult Culicoides increased with temperature but cold temperature thresholds for activity varied significantly according to collection season and location. Populations dominated by the subgenus Avaritia collected in South East England had a lower activity threshold temperature in the autumn (4 °C) compared with populations collected in the summer (10 °C). Within the subgenus Avaritia, Culicoides scoticus was significantly more active across all temperatures tested than Culicoides obsoletus within the experimental setup. Populations of Culicoides impunctatus collected in the North East of England were only active once temperatures reached 14 °C. Preliminary data suggested flight activity of the subgenus Avaritia does not differ between populations in South East England and those in the Scottish Borders. Conclusions These findings demonstrate seasonal changes in temperature thresholds for flight and across different populations of Culicoides. These data, alongside that defining thresholds for virus replication within Culicoides, provide a primary tool for risk assessment of arbovirus transmission in temperate regions. In addition, the study also provides a comparison with thermal limits derived directly from light-suction trapping data, which is currently used as the main method to define adult Culicoides activity during surveillance.

Mouse model of fragile X syndrome: Behavioral and hormonal response to stressors.

2009 ◽  
Vol 123 (3) ◽  
pp. 677-686 ◽  
Author(s):  
Darci M. Nielsen ◽  
Jeffrey J. Evans ◽  
William J. Derber ◽  
Kenzie A. Johnston ◽  
Mark L. Laudenslager ◽  
...  
Keyword(s):  
Mouse Model ◽  
Fragile X Syndrome ◽  
Fragile X ◽  
Hormonal Response

A simple flight chamber to determine flight activity in small insects

1995 ◽  
Vol 31 (4) ◽  
pp. 311-316 ◽  
Author(s):  
P.D. Cox ◽  
H.S. Dolder
Keyword(s):  
Flight Activity ◽  
Flight Chamber

The toxicity of some insecticidal sprays to adult locusts

1962 ◽  
Vol 53 (3) ◽  
pp. 597-608 ◽  
Author(s):  
R. D. MacCuaig
Keyword(s):  
Schistocerca Gregaria ◽  
Droplet Diameter ◽  
Flight Activity ◽  
Spray Application ◽  
Single Drop ◽  
Flying Insects ◽  
Spray Droplets ◽  
Tentative Explanation

The toxicities of sprays of some insecticides used against locusts have been determined. The LD50's of γ BHC, diazinon, and dieldrin to both flying and settled adults of Schistocerca gregaria (Forsk.) were between 0·9 and 1·5 times those of the same formulations when applied as a single drop to the abdomen. The toxicity of these insecticides was not affected by the size of the spray droplets when these ranged from about 60 to 250 µ in diameter. The toxicity of DNC, however, was always less by spray application than when applied by micro-drop syringe and was affected by the droplet diameter (droplets of 100 µ being 1·5 times as toxic as those of 200–230 µ) and by whether the locusts were sprayed in flight or when tethered on a card (those in flight being about 1·6 times as susceptible to 100 µ droplets as those at rest). A tentative explanation of this effect is given.The speed of action of the insecticides was compared and the effects of flight activity on susceptibility to the insecticides when sprayed over the flying insects was examined, but none could be detected by the technique used.

Hormonal response to fenfluramine challenges in clozapine-treated schizophrenic patients

1991 ◽  
Vol 29 (7) ◽  
pp. 691-694 ◽  
Author(s):  
Carmen Z. Lemus ◽  
Jeffrey A. Lieberman ◽  
Celeste A. Johns ◽  
David I. Mayerhoff ◽  
Simcha Pollack ◽  
...  
Keyword(s):  
Hormonal Response ◽  
Schizophrenic Patients
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