Graphische Tafeln zur Beurteilung statistischer Zahlen

Visual Acuity of the Vampire Bat, Desmodus rotundus, and its Dependence upon Light Intensity

“…Since training of $L was begun later and o d y 580 trials were available, results for this animal were limited to a measured acuity of 1'57' at the intensity level II. The criterion of significance was set at p < 0.0027 (KOLLER 1953 Ordinate: correct choices (%)); abscissa: stripe width (mm); I-VII intensity levcls (Fig. 85 ' $6 positive choices ( Table 2).…”

“…The acuity of bushbabies (Galago senegalensis) declines from 4'28" at 155 Ix to 8'46" at 1 lx (TREFF 1967). Vampire bats do not migrate over long distances, but they do have a radius of activity amounting to 5-20 km (MANN 1960;SCHMIDT, GREENHALL and LOPEZ-FORMENT 1971), within which they seek their prey. RAHMANN (1967) has summarized the data on visual acuity of vertebrates.…”

Carotid-Ophthalmic Anastomoses : Frequency of External Carotid and Ophthalmic Artery Anastomoses

“…However, these figures can be treated as a sample of a moderately asymmetrical binomial distribution and confidence limits assigned. If the Tables of Koller (1953) are used, the 99 73 per cent. confidence limits for the observed figure of 31-8 per cent.…”

Hilfsdiagramme für dent-Test

“…fiihrt, geschieht auf folgendem Weg: Aus der Stiehprobe kennt man f, d und S (zur Bestimmung yon S aus nz, ny, sz und s v finder man ein Diagramm in[2]). Man sucht in dem zu dem gewghlten geh6rigen Diagramm den Punkt mit der Abszisse d und der Ordinate f und sieht naeh, ob er links oder reehts der Geraden mit dem Parameter S liegt (s. Abb.…”