منابع مشابه
Iron isotope composition of some Archean and Proterozoic iron formations
Fe isotopes can provide new insight into redox-dependent biogeochemical processes. Precambrian iron formations (IF) are deserving targets for Fe isotope studies because they are composed predominantly of authigenic Fe phases and record a period of unprecedented iron deposition in Earth’s history. We present Fe isotope data for bulk samples from 24 Archean and Proterozoic IF and eight Phanerozoi...
متن کاملPhylogenetic placement within Lecanoromycetes of lichenicolous fungi associated with Cladonia and some other genera
Though most of the lichenicolous fungi belong to the Ascomycetes, their phylogenetic placement based on molecular data is lacking for numerous species. In this study the phylogenetic placement of 19 species of lichenicolous fungi was determined using four loci (LSU rDNA, SSU rDNA, ITS rDNA and mtSSU). The phylogenetic analyses revealed that the studied lichenicolous fungi are widespread across ...
متن کاملlichens on extensive green roofs : evapotranspiration , Cladonia
Green roofs are constructed ecosystems that provide ecosystem services in urban environments. Shallow substrate green roofs subject the vegetation layer to desiccation and other environmental extremes, so researchers have evaluated a variety of stress-tolerant vegetation types for green roof applications. Lichens can be found in most terrestrial habitats. They are able to survive extremely har...
متن کاملEnucleation of the Talus
Enucleation or triple dislocation of the talus is a rare injury; in literature, it represents 2 to 10% of the talar trauma. The prognosis for this type of injury is dominated by the risk of osteonecrosis. We report a case of closed enucleation of the talus, treated in a conservative manner with satisfactory functional outcome. It's a patient of 32 years, victim of a road traffic accident that r...
متن کاملSpectrophotometric Study of Complex Formations between Alprazolam and Some Transition Metal Ions in Non Aqueous Solution
In this study, the complexation reaction between Alprazolam (ALP) and metal ions (Zn2+, Ni2+, Cu2+ and Co2+) was investigated by using spectrophotometry in ethanol solvent. The stoichiometry of M+/ALP complexes was calculated by applying the Job, molar ratio and Continuous Changes methods and the relevant diagrams were plotted for each metal ions in each method. The results show that the obtain...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1903
ISSN: 0006-8071
DOI: 10.1086/328335