9 research outputs found
Use of SMS texts for facilitating access to online alcohol interventions: a feasibility study
A41 Use of SMS texts for facilitating access to online alcohol interventions: a feasibility study
In: Addiction Science & Clinical Practice 2017, 12(Suppl 1): A4
Co-construction de méthodes d’appropriation du développement durable par et pour les filières fromagères valorisant leur terroir, démarche et terrains d’expérimentation. Livret 1 : Présentation de la démarche et des terrains d'expérimentation : livret introductif et de synthèse du projet
Le livret 1 propose la présentation : du concept du développement durable, des six terrains d’étude, des enseignements transversaux
Sulfur Cave (Romania), an extreme environment with microbial mats in a CO\u3csub\u3e2\u3c/sub\u3e-H\u3csub\u3e2\u3c/sub\u3eS/O\u3csub\u3e2\u3c/sub\u3e gas chemocline dominated by mycobacteria
Sulfur Cave (Puturosu Mountain, Romania) is an extreme environment, unique for displaying life in a gas chemocline. The lower part of the cave is filled with CO2, CH4, and H2S of mofettic origin, while the upper part contains air that floats above the heavier volcanic gasses. S° and H2SO4 (from sulfur-oxidation) cover the cave wall at and below the CO2-H2S:O2 gas/gas interface. On the cave wall, near the interface the pH is \u3c 1 and unusual microbial biofilms occur on the rock’s surface. We provide context information on the geology, mineralogy, chemistry and biology to better understand this unique environment. We have used X-ray diffraction, optical microscopy, scanning electron microscopy with EDAX capabilities, stable isotope analysis and 16S and 18S rDNA amplicon sequencing. The most common taxa in the microbial biofilms are Mycobacteria, Acidithiobacillus and Ferroplasmaceae. Liquid water in this system originates solely from condensation of water vapor onto the cave walls making inflow of organic carbon from outside unlikely. The most likely primary source of energy for this microbial community is sulfur oxidation with H2S and S° as main reductants and atmospheric O2 as the main oxidant. Ferric iron from the rock surface is another potential oxidant. In Sulfur Cave, gaseous CO2 (from mofettic emission) maintains the stability of the gas chemocline. Sulfur Cave biofilms can help the search for extreme life in the subsurface, near volcanic systems on Earth and Mars. The Sulfur Cave example shows that a habitable environment can be established underground in gas chemoclines near CO2-dominated gas discharge zones, where it can have a steady supply of water and energy
Sulfur cave (Romania), an extreme environment with microbial mats in a Co<sub>2</sub>-H<sub>2</sub>S/O<sub>2</sub> gas chemocline dominated by mycobacteria
Sulfur Cave (Puturosu Mountain, Romania) is an extreme environment, unique for displaying life in a gas chemocline. The lower part of the cave is filled with CO2, CH4, and H2S of mofettic origin, while the upper part contains air that floats above the heavier volcanic gasses. S° and H2SO4 (from sulfur-oxidation) cover the cave wall at and below the CO2-H2S:O2 gas/gas interface. On the cave wall, near the interface the pH is <1 and unusual microbial biofilms occur on the rock’s surface. We provide context information on the geology, mineralogy, chemistry and biology to better understand this unique environment. We have used X-ray diffraction, optical microscopy, scanning electron microscopy with EDAX capabilities, stable isotope analysis and 16S and 18S rDNA amplicon sequencing. The most common taxa in the microbial biofilms are Mycobacteria, Acidithiobacillus and Ferroplasmaceae. Liquid water in this system originates solely from condensation of water vapor onto the cave walls making inflow of organic carbon from outside unlikely. The most likely primary source of energy for this microbial community is sulfur oxidation with H2S and S° as main reductants and atmospheric O2 as the main oxidant. Ferric iron from the rock surface is another potential oxidant. In Sulfur Cave, gaseous CO2 (from mofettic emission) maintains the stability of the gas chemocline. Sulfur Cave biofilms can help the search for extreme life in the subsurface, near volcanic systems on Earth and Mars. The Sulfur Cave example shows that a habitable environment can be established underground in gas chemoclines near CO2-dominated gas discharge zones, where it can have a steady supply of water and energy
Invoking spirits in the material world: Spiritualism, surrealism, and spirituality at work
This paper considers the recent upsurge of interest in workplace spirituality through an analysis of three cultural movements – late nineteenth century spiritualism, early twentieth century surrealism, and late twentieth/early twenty-first century 'spirituality at work'. These movements share a common interest in harnessing the power of the human spirit in the transformation and 'betterment' of social life. It is argued that these movements have successively adopted and de-radicalised invocations of the spirit world such that the proto-feminism and utopianism of spiritualism and the revolutionary pretensions of surrealism have been usurped by a strongly managerialist discourse of workplace spirituality. The paper ends with a consideration of the implications of these developments for the critical study of spirituality, management and organisation