Some observations on Hawaiian forests and forest cover in their relation to water supply

"List of tree-seeds adaptable for planting in Hawaiian forests ... [by J.F. Rock]": p. 21-24

A trapped mercury 199 ion frequency standard

Mercury 199 ions confined in an RF quadrupole trap and optically pumped by mercury 202 ion resonance light are investigated as the basis for a high performance frequency standard with commercial possibilities. Results achieved and estimates of the potential performance of such a standard are given

ReSolVe : restaurer la fertilité des sols viticoles en agriculture biologique

Le projet ReSolVe (programme Core Organic Plus) regroupe 6 pays dans l’objectif de restaurer la fertilité des sols viticoles par des méthodes alternatives dans des parcelles conduites en agriculture biologique présentant des zones caractérisées par des déficiences de vigueur, de récolte ou encore de qualité. L’objectif est de tester des techniques compatibles avec l’agriculture biologique afin de rétablir la fertilité et le fonctionnement du sol dans ces zones dégradées : ajout de compost, semis d’engrais verts, et semis d’un enherbement géré en mulch. 6 parcelles d'essai ont été mises en place en France. Les relations entre caractéristiques des sols, biodiversité (dont mésofaune), décomposition de la matière organique et conséquences sur la productivité de la vigne ont été évaluées lors d'une première année témoin en 2015 et les effets de la mise en place des modalités commencent à être évalués en 2016

Protocol for soil functionality assessment in vineyards

Protocols used by Resolve partners during the project, to assess soil functionality on degraded aeras and evaluate soil restoration after applying recovering practices

Protocol for soil functionality assessment in vineyards

Protocols used by Resolve partners during the project, to assess soil functionality on degraded aeras and evaluate soil restoration after applying recovering practices

Protocols for soil functionality assessment in vineyards

The purpose of this guideline is to describe the methods used during ReSolVe project for soil functionality assessment, so they can be implemented in similar studies. A brief introduction first underlines what are the main functions of soil and why maintaining an optimal soil functionality is particularly of major interest in viticulture. Then the different protocols selected for ReSolVe project and this guideline are presented according to the following classification: - Part I: assessment of soil physical and chemical features; - Part II: assessment of soil biological features (ecosystem service provision and providers); - Part III: assessment of rhizosphere biological features; - Part IV: assessment of grapevine quantitative and qualitative indicators reflecting soil functionality. In each part, global objectives of the monitoring are explained (what is it used for, in which cases…) and the parameters to evaluate are listed with their corresponding methodological sheet. In these sheets, instructions and information are given about: - Materials needed to perform the sampling and the measurement - Sampling procedure - Analysis procedure - Possible interpretations and conclusions that can be drawn (value and meaning of the results, indication of reference values when existing, potential limit of the protocol) - Bibliographic references related to the method described - Additional helpful information where appropriate (ex: template of sampling sheet

Étude des conditions de mutagenèse de la souche bhk 21/13 pour la sélection de résistants a la 5-bromodeoxyuridine ou a la 8-azaguanine

International audienc

Polymorphism of lead(ii) benzenethiolate: a noncentrosymmetric new allotropic form of Pb(SPh)2

Depending upon its conditions of crystallization, lead(II) benzenethiolate can exist in two forms: a low-temperature centrosymmetric phase α-Pb(SPh)2 which can be converted by heating into the noncentrosymmetric, 2nd order NLO strongly active and room temperature metastable β-Pb(SPh)2 phase, thus affording an example of transition towards noncentrosymmetry induced by a rise of temperature