Limit of Spectrum in the Ultra-Violet

Absolute Intensities in the Visible . and Ultra - Violet Spectrum of a Quartz Mercury Arc

Limit summability of ultra exponential functions

In [1] we uniquely introduced ultra exponential functions (uxpa) and denednext step of the serial binary operations: addition, multiplication and power.Also, we exhibited the topic of limit summability of real functions in [2,3]. Inthis paper, we study limit summability of the ultra exponential functions andprove some of their properties. Finally, we pose an unsolved problem aboutthem.

the effect of task cognitive complexity and time limit on the performance of the learners with different proficiency levels in second language writing skill

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...

The Abiotic Action of Ultra-violet Light

Typhoid bacilli are about one two-hundredth as sensitive to ultraviolet light of wave-lengths 2100 to 2800 Angström units as is the photographic plate. This sensitivity then falls off, decreasing rapidly to almost zero sensitivity at about 2970, the beginning of the sun's spectrum.

Ultra-Violet Therapy in Cases of Leucoderma

The normal skin is from 0.5 to 10 millimetres thick, varying from place to place in the body, and consists of two layers, the epidermis and the dermis. The more superficial layer of the skin is the avascular epidermis which consists of stratified epithelium accurately moulded on the papillae of the corium , or true skinThe lowest or the deepest layer of the epidermis is known as the basal layer...