scholarly journals Adolescent behavioural response to an increase of tobacco prices

2021 ◽  
Vol 7 (Supplement) ◽  
Author(s):  
Danielle Arnold ◽  
Kirsten Visscher ◽  
Babette Everaars ◽  
Anita Suijkerbuijk ◽  
Ardine de Wit
Keyword(s):  
Behavioural Response

scholarly journals Empirical study of spatial differentiation of youth unemployment in Russia

2016 ◽  
Vol 66 (3) ◽  
pp. 507-526 ◽  
Author(s):  
Tatiana Blinova ◽  
Vladimir Markov ◽  
Viktor Rusanovskiy
Keyword(s):  
Labour Market ◽  
Age Groups ◽  
Spatial Differentiation ◽  
Youth Unemployment ◽  
Behavioural Response ◽  
Economic Effects ◽  
Group Differences ◽  
Unemployment Rates ◽  
Youth Labour Market ◽  
Interregional Differentiation

The purpose of the study is to conduct a statistical analysis and to perform a quantitative assessment of the degree and the dynamics of the interregional differences in youth unemployment in Russia between 2005 and 2013. We decompose the interregional differentiation into “within-group” and “between-group” differences. We also analyse the dynamics of the within-group and between-group differences and estimate their contribution to changes in the interregional differentiation of youth unemployment. Additionally, we estimate the degree and the dynamics of the interregional differences of the youth labour market in Russia in times of crisis and recovery growth. The results show a reduction in the interregional differences in unemployment rates between 2005 and 2008, while in 2009–2013, the interregional differentiation of the labour market increased. We found that the socio-economic effects of youth unemployment, as well as the behavioural response to economic shocks in the age groups of 15–19 and 20–29 years were significantly different.

OESTROGEN-PROGESTERONE RELATIONSHIPS IN THE INDUCTION OF OESTRUS IN SPAYED HEIFERS

1969 ◽  
Vol 45 (1) ◽  
pp. 99-109 ◽  
Author(s):  
M. J. CARRICK ◽  
J. N. SHELTON
Keyword(s):  
Behavioural Response ◽  
Normal Response ◽  
Oestradiol Benzoate ◽  
Small Doses ◽  
Refractory State ◽  
Increased Sensitivity ◽  
Repeated Doses ◽  
Effective Doses ◽  
Response Line ◽  
Normal Sensitivity

SUMMARY Experiments were conducted to examine the behavioural response of spayed heifers to oestrogen, and its modification by progesterone. In two groups of heifers, the median effective doses (MED) of oestradiol benzoate (ODB) were 121 and 132 μg. Repeated doses of ODB at physiological levels did not induce a state of refractoriness; in this respect the heifer is dissimilar to the ewe. However, repeated doses of 10 mg. ODB induced refractoriness to 400 μg. ODB. When such refractory heifers were treated with 10 mg. progesterone/day for 5 days, they showed a normal response to 400 μg. ODB given 3 days later. This return to normal sensitivity was not sustained, and pretreatment with progesterone was necessary for a normal response to subsequent small doses of ODB. The transient removal of the refractory state appears not to be due to a simple synergistic effect of residual progesterone, but to an effect of preconditioning a neural centre to respond to oestrogen. Increasing the duration of pretreatment with progesterone beyond 5 days did not result in a greater sensitivity to ODB. Pretreatment with progesterone in heifers not made refractory to ODB did not result in an increased sensitivity to ODB. Moreover, up to 7 days after termination of the progesterone treatment, the response to ODB was reduced and the slope of the dose-response line was less steep than when ODB was injected alone. The reduction of the response was more pronounced with 40 mg. progesterone/day than with 10 mg. The possible significance of these results in intact animals is discussed.

scholarly journals The dose makes the poison: Non-linear behavioural response to CO2-induced aquatic acidification in zebrafish (Danio rerio)

2021 ◽  
Vol 778 ◽  
pp. 146320
Author(s):  
Trevor J. Hamilton ◽  
Nicole Hurst Radke ◽  
Jasmin Bajwa ◽  
Shayna Chaput ◽  
Martin Tresguerres
Keyword(s):  
Danio Rerio ◽  
Behavioural Response ◽  
Non Linear ◽  
Aquatic Acidification

scholarly journals Serotonin and Tryptophan Serum Concentrations in Shelter Dogs Showing Different Behavioural Responses to a Potentially Stressful Procedure

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Giacomo Riggio ◽  
Chiara Mariti ◽  
Valeria Sergi ◽  
Silvana Diverio ◽  
Angelo Gazzano
Keyword(s):  
Behavioural Response ◽  
Blood Collection ◽  
Stressful Situation ◽  
Serum Concentrations ◽  
Chi Square ◽  
Significant Difference ◽  
Relaxation Stress ◽  
Shelter Dogs ◽  
Stress Signals ◽  
The Relationship

In mammals, serotonin (5-HT) levels depend on the availability of tryptophan (TRP). Low 5-HT concentrations have been linked to behavioural disorders in dogs. This study aimed at investigating possible differences in dogs’ serum TRP and 5-HT concentrations according to their behavioural response to a potentially stressful procedure. Thirty-nine physically healthy shelter dogs, 15 females and 24 males, mean age = 5.6 years, were categorized by a certified veterinary behaviourist according to their behavioural response to medical examination and blood collection, in: relaxation, stress signals, tension without growling, tension with growling, escape attempts, and aggression attempts. Extraction and quantification of 5-HT and TRP were performed using a HLPC method. Data were statistically analysed, applying Chi-square and Spearman tests. Results showed no significant difference in TRP (χ2 = 2.084, p = 0.555) nor 5-HT (χ2 = 0.972, p = 0.808) serum concentrations among different categories of dogs; however, some categories were underrepresented (relaxation = 20.5%, stress signals = 30.8%, tension without growling = 43.6%, tension with growling = 5.1%, escape attempts = 0%, aggression attempts = 0%). No correlation between serum TRP and 5-HT concentrations was found (ρ = 0.086, p = 0.602). Serum 5-HT levels do not seem to be associated with dogs’ behavioural response to a stressful situation nor with serum TRP concentrations. The relationship between serum TRP and 5-HT concentrations and behaviour needs further research.

scholarly journals Evaluation and comparison of pain questionnaires for clinical screening of osteoarthritis in cats

2019 ◽  
Vol 185 (24) ◽  
pp. 757-757 ◽  
Author(s):  
Sarah Stadig ◽  
B Duncan X Lascelles ◽  
Gorel Nyman ◽  
Anna Bergh
Keyword(s):  
Physical Examination ◽  
Home Environment ◽  
Internal Consistency ◽  
Internal Consistency Reliability ◽  
Cross Sectional Study ◽  
Behavioural Response ◽  
Lifestyle Changes ◽  
Cross Sectional ◽  
Discriminatory Ability ◽  
Physical Dysfunction

BackgroundFeline osteoarthritis (OA) is a common cause of long-standing pain and physical dysfunction. Performing a physical examination of a cat is often challenging. There is a need for disease-specific questionnaires or the so-called clinical metrology instruments (CMIs) to facilitate diagnosis and evaluation of treatment of feline OA. The CMI provides the owners an assessment of the cat’s behavioural and lifestyle changes in the home environment. The purpose of the study was to evaluate readability, internal consistency, reliability and discriminatory ability of four CMIs.MethodsThis is a prospective, cross-sectional study with 142 client-owned cats. Feline OA was diagnosed based on medical history, orthopaedic examination and radiography.ResultsThe results indicate that all four instruments have sound readability, internal consistency, are reliable over time and have good discriminatory ability. Preliminary cut-off values with optimal sensitivity and specificity were suggested for each instrument. The osteoarthritic cats showed significant changes in behavioural response to pain during orthopaedic examination, compared with sound cats.ConclusionThe results indicate that all four questionnaires make an important contribution in a clinical setting, and that the cat’s behavioural response to pain during physical examination should be a parameter to take into account as a possible indication of chronic pain.

Amphetamine-Induced Dysphoria in Postmenopausal Women

1981 ◽  
Vol 138 (6) ◽  
pp. 470-473 ◽  
Author(s):  
Uriel Halbreich ◽  
Gregory Asnis ◽  
Donald Ross ◽  
Jean Endicott
Keyword(s):  
Postmenopausal Women ◽  
Behavioural Response ◽  
Normal Men

SummaryDextroamphetamine (0.15 mg/kg) intravenously administered to a group of normal postmenopausal women induced a dysphoric reaction with drowsiness, annoyance, sadness and anger. Young normal men, receiving the same dosage, responded with elation of mood and alertness. It is suggested that age and hypoestrogenism may alter the behavioural response to amphetamine.

Behavioural response of grazing lambs to changes associated with feeding and separation from their mothers at weaning

2013 ◽  
Vol 95 (3) ◽  
pp. 913-918 ◽  
Author(s):  
J.P. Damián ◽  
M.J. Hötzel ◽  
G. Banchero ◽  
R. Ungerfeld
Keyword(s):  
Behavioural Response
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