Yearly, Seasonal and Daily Variations of Radio Refractivity

Seasonal variations of daily mortality in Tokyo City.

Daily deaths of all causes in Tokyo residents from 1966 to 1972 were analyzed with relation to environmental conditions. As the analytical methods, daily deviation from 15-day moving average, simple correlation coefficients and stepwise regression procedure between daily deaths and environmental variables were employed. Seasonal variations of daily deaths, high in winter low in summer, and sign...

Seasonal variations in daily rhythms of activity in athletic horses.

Circadian rhythms reflect extensive programming of biological activity that meets and exploits the challenges and opportunities offered by the periodic nature of the environment. In the present investigation, we recorded the total activity of athletic horses kept at four different times of the year (vernal equinox, summer solstice, autumn equinox and winter solstice), to evaluate the presence o...

Daily to Yearly Variations in Rip Current Activity over Kilometer Scales

Estimation of Radio Refractivity Structure Using Matched-Field Array Processing

In coastal regions the presence of the marine boundary layer can significantly affect RF propagation. The relatively high specific humidity of the underlying “marine layer” creates elevated trapping layers in the radio refractivity structure. While direct sensing techniques provide good data, they are limited in their temporal and spatial scope. There is a need for assessing the three-dimension...

patterns and variations in native and non-native interlanguage pragmatic rating: effects of rater training, intercultural proficiency, and self-assessment

although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...