Cela fait dix ans que Gallica, la bibliothèque numérique de BnF, fonctionne manière transverse pour assurer sa présence sur les réseaux sociaux numériques (RSN). Pour mener une analyse réflexive dont cette activité s’insère au sein l’institution, cet article appréhende l’équipe des RSN Gallica comme un réseau social à part entière, basé démocratisation pratique, et décrit, en s’appuyant l’expér...

A Bowen ratio energy balance was conducted over a Tamarix ramosissima (saltcedar) stand growing in a riparian corridor along the Virgin River in southern Nevada. Measurements in two separate years were compared and contrasted on the basis of changes in growing conditions. In 1994, a drought year, record high temperatures, dry winds, and a falling water table caused partial wilt of outer smaller...

In classical weed biological control, small collections of arthropods are made from one or a few sites in the native range of the target plant and are introduced to suppress the plant where it has become invasive, often across a wide geographic range. Ecological mismatches in the new range are likely, and success using the biocontrol agent may depend on postrelease evolution of beneficial life ...

Streszczenie W pracy przedstawiono nowe stanowiska 12 rzadkich (lub regionalnie rzadkich) roślin naczyniowych w Polsce, tj. Cochlearia danica , Colchicum autumnale Cuscuta campestris Lythrum hyssopifolia Ostericum palustre Pedicularis sylvatica Plantago coronopus Ranunculus arvensis Rosa gallica Sesleria uliginosa Succisella inflexa oraz Veronica prostrata .

The essential oil of Artemisia caerulescens subsp. gallica was observed to have analgesic, antipyretic and anti-inflammatory actions when administered intraperitoneally to rats and mice at doses one-fourth to one-third that of its LD50 of 1.35 ml/kg. Lysine acetylsalicylate was used as a reference compound.

A Bowen ratio energy balance was conducted over a Tamarix ramosissima (saltcedar) stand growing in a riparian corridor along the Virgin River in southern Nevada. Measurements in two separate years were compared and contrasted on the basis of changes in growing conditions. In 1994, a drought year, record high temperatures, dry winds, and a falling water table caused partial wilt of outer smaller...

Twenty-six isolates representing nine North American Armillaria species were investigated with flow cytometry and RFLP (restriction fragment length polymorphism) analyses to determine their nuclear DNA content and RFLP profile. Three putatively diploid isolates of A. ostoyae, A. gemina, A. calvescens, A. sinapina, A. mellea, A. gallica, A. nabsnona, and North American Biological Species (NABS) ...