Einige Beobachtungen an Riesenlarven von Rana esculenta

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Vestibulotrigeminal pathways in the frog, Rana esculenta.

The aim of this study was to investigate whether primary vestibular afferent fibers establish direct connections with the motor and sensory trigeminal system in the brainstem of the frog. The experiments were carried out on Rana esculenta. In anaesthetized animals the trigeminal and vestibular nerves were prepared, and their proximal stumps were labeled either with fluorescein binding dextran a...

متن کامل

Sigmund Exner’s (1887) Einige Beobachtungen über Bewegungsnachbilder (Some Observations on Movement Aftereffects): An Illustrated Translation With Commentary

In his original contribution, Exner's principal concern was a comparison between the properties of different aftereffects, and particularly to determine whether aftereffects of motion were similar to those of color and whether they could be encompassed within a unified physiological framework. Despite the fact that he was unable to answer his main question, there are some excellent-so far unkno...

متن کامل

Internetberatung - Einige Überlegungen zu Möglichkeiten einer sinnhaften Vollautomation von Beratungsleistungen

Durch den Einsatz von Informationstechnologien und insbesondere von Internettechnologien wurden in den letzten Jahren Prozesse und Geschäftsmodelle vieler Branchen einer sinnhaften Vollautomation unterzogen. Unternehmensberatungen (Beratungen) haben hier regelmäßig großen Einfluss ausgeübt. Vor diesem Hintergrund soll die Frage gestellt werden, ob auch die Dienstleistung Beratung sinnhaft volla...

متن کامل

Atrazine increases the sodium absorption in frog (Rana esculenta) skin.

The presence of atrazine in agricultural sites has been linked to the decline in amphibian populations. The efforts of the scientific community generally are directed toward investigating the long-term effect of atrazine on complex functions (reproduction or respiration), but in the present study, we investigated the short-term effect on the short-circuit current (I(sc)), a quantitative measure...

متن کامل

Overwinter survival of Rana lessonae and its hemiclonal associate Rana esculenta

In central Europe, the hybridogenetic water frog Rana esculenta is a sexual parasite that only persists in the presence of the parental species, R. lessonae, with which it must mate in order to reproduce. R. esculenta is a superior larval competitor, and adult females are about three times more fecund than R. lessonae. This suggests that, in the absence of some balancing advantage to R. lessona...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Archiv für Mikroskopische Anatomie

سال: 1912

ISSN: 0176-7364

DOI: 10.1007/bf02982909