Search results for "Venus"

A voyage to Vardø - A scientific account of an unscientific expedition

2013

After the “Venus Transit Conference” that took place at the University of Tromsø from June 2 to June 3, 2012, participants were given the opportunity to either stay in Tromsø until the night of June 5–6, or to participate in a voyage to Finnmark, where the historical sites Vardø, Hammerfest, and the North Cape were to be visited. This voyage culminated in the observation of the 2012 transit of Venus at Vardø. This paper gives a detailed account of this voyage that lasted from June 3 to June 6, and emphasizes the historical, scientific, philosophical, educational and cultural involvement of the participants of the voyage and of the local population. The paper concludes with reflections on th…

2015

The explosive pollination mechanism of the prayer plants (Marantaceae) is unique among plants. After a tactile stimulus by a pollinator, the style curls up rapidly and mediates pollen exchange. It is still under discussion whether this explosive movement is released electrophysiologically, i.e. by a change in the membrane potential (as in Venus flytrap), or purely mechanically. In the present study, electrophysiological experiments are conducted to clarify the mechanism. Artificial release experiments (chemical and electrical) and electrophysiological measurements were conducted with two phylogenetically distant species, Goeppertia bachemiana (E. Morren) Borchs. & S. Suarez and Donax cannif…

Action potentials induce biomagnetic fields in Venus flytrap plants

2020

Upon stimulation, plants elicit electrical signals that can travel within a cellular network analogous to the animal nervous system. It is well-known that in the human brain, voltage changes in certain regions result from concerted electrical activity which, in the form of action potentials (APs), travels within nerve-cell arrays. Electrophysiological techniques like electroencephalography, magnetoencephalography, and magnetic resonance imaging are used to record this activity and to diagnose disorders. In the plant kingdom, two types of electrical signals are observed: all-or-nothing APs of similar amplitudes to those seen in humans and animals, and slow-wave potentials of smaller amplitud…

Effets structurels dans la distribution des revenus en France

1975

International audience; Dans ce texte, à partir des données publiées de l'enquête Formation- qualification professionnelle, nous avons retrouvé les estimations quelque peu classiques du modèle de capital humain mettant en rapport le niveau de revenus avec le diplôme de l'individu ainsi que son âge. Toutefois, ces variables ont un pouvoir "explicatif" relativement faible ( 40 %) et il ne nous a pas été possible d'aller au-delà dans la décomposition de la variance. Toutefois, la deuxième partie du texte qui se concentre sur l'inégalité de la distribution des revenus montre que la distribution tient d'une part à celle du capital humain mais aussi d'autre part (pour une fraction non négligeable…

Zvaigžņotā Debess: 2005, Rudens

2005

Latvijas Zinātnes padome, Latvijas Universitāte

Trabajo feminino y distribucion de rentas en Espana

1988

International audience; En este artículo detallamos la actividad profesional de las mujeres casadas, y medimos, a lo largo del ciclo de vida de los hogares, el impacto del trabajo femenino sobre la distribución de las rentas familiares. A continuación, confrontamos la situación de España con la de otros paises donde han podido efectuarse análisis similares ^Francia, Gran gretaña y Estados Unidos).

Corpi che contano. Prolegomeni per una teoria della materialità delle immagini

2022

Oggetto di questo saggio è un tipo di artefatti che ha avu- to in passato, ha ancora e avrà in futuro un significato centra- le nella produzione dell’Homo Sapiens: le miniature. Si tratta di oggetti che hanno accompagnato tutta la sua evoluzione e la cui datazione non ha smesso di sorprendere i paleontologi. Sappiamo, ad esempio, che la scultura antropomorfa ritro- vata a Berekhat Ram (fig. 1) in Israele e quella di Tan Tan (fig. 2) in Marocco risalgono a parecchie centinaia di migliaia di anni fa, e dunque sono ben più antiche delle cosiddette Veneri che popolano il Paleolitico superiore europeo. The subject of this essay is a type of artifact that has had in the past, still has and will h…

NOTES ON A STATUE FROM THE COLLECTIONS OF THE NATIONAL MUSEUM OF UNION FROM ALBA IULIA

2016

This study proposes to re-evaluate a marble statue from the old collections of the National Museum of Union Alba Iulia. It was discovered by A. Cserni during excavations carried out at the Palace of the Governors of Roman Dacia, in 1898. It has been repeatedly published by Á. Hekler and Al. Diaconescu. While the latter author established dating and iconographic prototype of the statue, we believe that further details as discovery place and context, depiction, iconographic attribution and role of this work of art can be offered. Presence of a follower at the feet of the divinity, more precisely the right foot of a character – child, conveys us the idea of depiction of Eros, god of love. Usua…

Rémunérer les médecins généralistes : la question des revenus

2010

National audience;

Distribution des revenus : mesures de l'éducation et effets de génération en France

1983

Référence interne : 83004