CARDIAC MONITORING DURING EXERCISE TESTS IN THE HORSE     

M. C. Hall M.Sc.  Ph.D.  A. R. Fenelon B.Sc.  †  R. D. McDonald M.Sc.  † J. D. Steel D.V.Sc. 《Australian veterinary journal》1975,51(12):547-553

Different techniques for monitoring cardiac responses to exercise in the horse have been described and evaluated. For experimental work of this type in a normal training and racing environment, the electrode system described when used with a portable magnetic tape recording system provided the best means of obtaining useful and reproducible data.  相似文献   

Rubidium measured by XRF as a predictor of soil particle size in limestone and siliceous parent materials     

Croffie  Maame E. T.  Williams  Paul N.  Fenton  Owen  Fenelon  Anna  Daly  Karen 《Journal of Soils and Sediments》2022,22(3):818-830

Purpose

Information about particle size distribution (PSD) and soil texture is essential for understanding soil drainage, porosity, nutrient availability, and trafficability. The sieve-pipette/gravimetric method traditionally used for particle size analysis is labour-intensive and resource-intensive. X-ray fluorescence (XRF) spectrometry may provide a rapid alternative. The study’s aim was to examine the use of XRF for rapid determination of PSD in Irish soils.

Methods

Soils (n?=?355) from existing archives in Ireland were analysed with a benchtop energy-dispersive XRF (EDXRF). Correlation and regression analyses were determined to compare Rb, Fe, Al, and Si concentrations to % clay, % silt, and % sand. Also, linear regression models were developed to compare % clay, % sand, and % silt measured by the gravimetric method to values predicted by EDXRF.

Results

The relationship between element concentration and PSD was dependent on parent material. Rb, Al, and Fe showed a significant (p?<?0.05) correlation (r?>?0.50) with % clay and % sand in soils derived from limestone and siliceous stone parent materials. Rb was the best predictor for % clay (R²?=?0.49, RMSE?=?10.20) in soils derived from limestone and siliceous stone-derived soils.

Conclusion

Geochemistry and clay mineralogy of the soils’ parent material strongly influenced the EDXRF’s ability to predict particle size. The EDXRF could predict % clay in soils from parent materials which weather easily, but the opposite was true for soils with parent material recalcitrant to weathering. In conclusion, this study has shown that the EDXRF can screen % clay in soils derived from limestone and siliceous stone parent materials.

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Meeting the urgent need for rabies education in Haiti          下载免费PDF全文

M. O. V. Osinubi  N. Fenelon  J. L. Dyer  R. Franka  M. Etheart  A. Ali  M. Birhane  N. Phaimyr Jn Charles  A. Destine  N. Saleme  C. Newman  K. Crowdis  C. Lutfy  C. E. Rupprecht  R. M. Wallace  V. R. Johnson 《Zoonoses and public health》2018,65(6):662-668

The highest rate of human rabies deaths reported in the Americas is in Haiti, and most of these deaths result from rabies virus infections that occur after individuals are bitten by infected dogs and do not receive rabies post‐exposure prophylaxis. One barrier to rabies prevention in Haiti is a lack of knowledge about this disease among healthcare professionals and community members. During the past 4 years, The US Centers for Disease Control and Prevention has collaborated with public health officials and partners to develop, test and refine educational materials aimed at filling this need for rabies education. This report summarizes the use of feedback from knowledge, attitudes and practises surveys; key informant interviews; and focus groups to develop culturally appropriate rabies prevention materials for community members, health officials, clinicians, laboratory professionals, veterinary professionals, government officials and national and local district leaders about ways to prevent rabies. These formative research methods were critically important in ensuring that the materials would be culturally appropriate and would stand the greatest likelihood of motivating Haitians to protect themselves from rabies. Centers for Disease Control and Prevention is using lessons learned in Haiti to develop and test materials in other countries with high rates of canine rabies.  相似文献