Work tolerance and physiological responses to thermal environment wearing protective NBC clothing

Ergonomics ◽  
1996 ◽  
Vol 39 (4) ◽  
pp. 620-633 ◽  
Author(s):  
G. CORTILI ◽  
P. MOGNONI ◽  
F. SAIBENE
Keyword(s):  
Thermal Environment ◽  
Physiological Responses

scholarly journals Decision Trees for Predicting the Physiological Responses of Rabbits

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 994
Author(s):  
Patrícia Ferreira Ponciano Ferraz ◽  
Yamid Fabián Hernández-Julio ◽  
Gabriel Araújo e Silva Ferraz ◽  
Raquel Silva de Moura ◽  
Giuseppe Rossi ◽  
...  
Keyword(s):  
Decision Making ◽  
Decision Trees ◽  
Environmental Variables ◽  
Thermal Environment ◽  
Physiological Responses ◽  
Rapid Evaluation ◽  
Production Environment ◽  
Experimental Database ◽  
Tree Models ◽  
Data Points

The thermal environment inside a rabbit house affects the physiological responses and consequently the production of the animals. Thus, models are needed to assist rabbit producers in decision-making to maintain the production environment within the zone of thermoneutrality for the animals. The aim of this paper is to develop decision trees to predict the physiological responses of rabbits based on environmental variables. The experiment was performed in a rabbit house with 26 rabbits at eight weeks of age. The experimental database is composed of 546 observed data points. Sixty decision tree models for the prediction of respiratory rate (RR, mov.min−1) and ear temperature (ET, °C) of rabbits exposed to different combinations of dry bulb temperature (tdb, °C) and relative humidity (RH, %) were developed. The ET model exhibited better statistical indices than the RR model. The developed decision trees can be used in practical situations to provide a rapid evaluation of rabbit welfare conditions based on environmental variables and physiological responses. This information can be obtained in real time and may help rabbit breeders in decision-making to provide satisfactory environmental conditions for rabbits.

Physiological temperature response and embryonic mortality in stressed swine

1975 ◽  
Vol 229 (6) ◽  
pp. 1471-1475 ◽  
Author(s):  
DE Wildt ◽  
GD Riegle ◽  
WR Dukelow
Keyword(s):  
Thermal Environment ◽  
Physiological Responses ◽  
Significant Proportion ◽  
Temperature Response ◽  
Reproductive Function ◽  
Embryonic Mortality ◽  
Delayed Effect ◽  
Short Term ◽  
Embryo Survival ◽  
Early Gestation

Physiological responses and some aspects of reproductive function were examined in mated female pigs subjected to a short-term heat stress during two intervals of early gestation. Trial 1 control and treated animals experienced temperatures of 24.0 and 40.2 degrees C, respectively, from days 2 through 13 of pregnancy. Trial 2 control and treated pigs were exposed to 23.3 and 40.4 degrees C, respectively, from days 14 through 25 of pregnancy. Both high thermal exposures caused significant increases (P less than 0.05) in rectal temperature. At body temperatures of 41.1 degrees C or above, animals became more active and behavioral patterns erratic. Stressed pigs in both trials exhibited adaptation to the short-term high thermal environment as treatment days progressed. Embryonic mortality in the stressed animals in trial 1 was greater than in controls, with the animals in the former group retaining a normal size litter or losing the entire litter by day of slaughter. A significant proportion (P less than 0.01) of litters from stressed animals contained degenerating fetuses at day 42 of gestation, suggesting a continuous or delayed effect of thermal stress on embryo survival.

Physiological responses of Santa Inês x Dorper ewes and lambs to thermal environment of silvopasture and open pasture systems

2021 ◽  
pp. 106565
Author(s):  
Matheus Luquirini Penteado dos Santos ◽  
Julia Morgana Vieira Dada ◽  
Pricilla Carvalho Muniz ◽  
Maria Luisa Appendino Nunes-Zotti ◽  
Flavia Regina Oliveira de Barros ◽  
...  
Keyword(s):  
Thermal Environment ◽  
Physiological Responses ◽  
Santa Inês

scholarly journals Fuzzy system to evaluate performance and the physiological responses of piglets raised in the farrowing house with different solar heating systems

2019 ◽  
Vol 72 (1) ◽  
pp. 8729-8742
Author(s):  
Flavio Alves Damasceno ◽  
Carlos Eduardo Alves Oliveira ◽  
Jairo Alexander Osório Saraz ◽  
Lucas Hernrique Pedrozo Abreu ◽  
Patricia Ferreira Ponciano Ferraz
Keyword(s):  
Fuzzy System ◽  
Thermal Environment ◽  
Physiological Responses ◽  
Fuzzy Model ◽  
Solar Heating ◽  
Productive Performance ◽  
Validation Data ◽  
Heating Systems ◽  
Heating Efficiency ◽  
Solar Heater

The present work aims to develop a mathematical model, based on fuzzy set theory, for predicting performance and the physiological responses of piglets raised in the farrowing house with different solar heating systems. To do this, a solar heater prototype was constructed using alternative materials and the heating efficiency was compared with a commercial solar heater system. In order to thermally evaluate the heaters, temperature sensors were installed in the inlet and outlet pipes of each floor and thermal reservoir. The fuzzy system was developed and the variables dry air bulb temperature (Tbs) and relative humidity (RH) of the air were defined as inputs. Based on the input variables, the fuzzy system predicts the productive performance (weight gain - WG) and physiological responses (respiratory rate - RR, rectal temperature –RT, and skin temperature - ST) of piglets raised in an environment with solar heating. Based on the results, the fuzzy model was adequate for predicting the physiological responses and productive performance of piglets, presenting low standard deviation and high correlation with the validation data. This model can be used to assist producers in decision making, especially regarding maintaining animal welfare while the thermal environment changes.

scholarly journals Use of alternative tiles in the free-range broilers rearing: thermal environment, productive performance and physiological responses

2021 ◽  
Vol 9 (1) ◽  
pp. 1-13
Author(s):  
Mônica Patrícia Maciel ◽  
Cinara da Cunha Siqueira Carvalho ◽  
Felipe Shindy Aiura ◽  
Auriclécia Lopes de Oliveira Aiura ◽  
Camila Maida de Albuquerque Maranhão ◽  
...  
Keyword(s):  
Thermal Environment ◽  
Physiological Responses ◽  
Productive Performance ◽  
Free Range

Misophonia: An Evidence-Based Case Report

2020 ◽  
Vol 29 (4) ◽  
pp. 685-690
Author(s):  
C. S. Vanaja ◽  
Miriam Soni Abigail
Keyword(s):  
Quality Of Life ◽  
Case Report ◽  
Case History ◽  
Pure Tone ◽  
Physiological Responses ◽  
Evidence Based ◽  
Management Option ◽  
Pure Tone Audiogram

Purpose Misophonia is a sound tolerance disorder condition in certain sounds that trigger intense emotional or physiological responses. While some persons may experience misophonia, a few patients suffer from misophonia. However, there is a dearth of literature on audiological assessment and management of persons with misophonia. The purpose of this report is to discuss the assessment of misophonia and highlight the management option that helped a patient with misophonia. Method A case study of a 26-year-old woman with the complaint of decreased tolerance to specific sounds affecting quality of life is reported. Audiological assessment differentiated misophonia from hyperacusis. Management included retraining counseling as well as desensitization and habituation therapy based on the principles described by P. J. Jastreboff and Jastreboff (2014). A misophonia questionnaire was administered at regular intervals to monitor the effectiveness of therapy. Results A detailed case history and audiological evaluations including pure-tone audiogram and Johnson Hyperacusis Index revealed the presence of misophonia. The patient benefitted from intervention, and the scores of the misophonia questionnaire indicated a decrease in the severity of the problem. Conclusions It is important to differentially diagnose misophonia and hyperacusis in persons with sound tolerance disorders. Retraining counseling as well as desensitization and habituation therapy can help patients who suffer from misophonia.

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