247 research outputs found
Caryophyllales 2015 in Berlin and the Global Caryophyllales Initiative
Fil: Arias, Salvador. Universidad Nacional Autónoma de México; MéxicoFil: Berendsohn, Walter G.. Freie Universität Berlin; AlemaniaFil: Borsch, Thomas. Freie Universität Berlin; AlemaniaFil: Flores Olvera, Hilda. Universidad Nacional Autónoma de México; MéxicoFil: Ochoterena, Helga. Universidad Nacional Autónoma de México; MéxicoFil: von Mering, Sabine. Freie Universität Berlin; AlemaniaFil: Zuloaga, Fernando Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentin
Case studies
In this chapter, case studies are used as examples of how to gain a better understanding of the risks posed by extreme weather and climate-related events while identifying lessons and best practices from past responses to such occurrences. Using the information in Chapters 1 to 8, it was possible to focus on particular examples to reflect the needs of the whole Special Report. The chosen case studies are illustrative of an important range of disaster risk reduction, disaster risk management, and climate change adaptation issues. They are grouped to examine representative types of extreme events, vulnerable regions, and methodological approaches
Sample data processing in an additive and reproducible taxonomic workflow by using character data persistently linked to preserved individual specimens
We present the model and implementation of a workflow that blazes a trail in
systematic biology for the re-usability of character data (data on any kind of
characters of pheno- and genotypes of organisms) and their additivity from
specimen to taxon level. We take into account that any taxon characterization
is based on a limited set of sampled individuals and characters, and that
consequently any new individual and any new character may affect the
recognition of biological entities and/or the subsequent delimitation and
characterization of a taxon. Taxon concepts thus frequently change during the
knowledge generation process in systematic biology. Structured character data
are therefore not only needed for the knowledge generation process but also
for easily adapting characterizations of taxa. We aim to facilitate the
construction and reproducibility of taxon characterizations from structured
character data of changing sample sets by establishing a stable and
unambiguous association between each sampled individual and the data processed
from it. Our workflow implementation uses the European Distributed Institute
of Taxonomy Platform, a comprehensive taxonomic data management and
publication environment to: (i) establish a reproducible connection between
sampled individuals and all samples derived from them; (ii) stably link
sample-based character data with the metadata of the respective samples; (iii)
record and store structured specimen-based character data in formats allowing
data exchange; (iv) reversibly assign sample metadata and character datasets
to taxa in an editable classification and display them and (v) organize data
exchange via standard exchange formats and enable the link between the
character datasets and samples in research collections, ensuring high
visibility and instant re-usability of the data. The workflow implemented will
contribute to organizing the interface between phylogenetic analysis and
revisionary taxonomic or monographic work
Stable Carbon Isotope Signature of Methane Released From Phytoplankton
Unidad de excelencia María de Maeztu CEX2019-000940-MAquatic ecosystems play an important role in global methane cycling and many field studies have reported methane supersaturation in the oxic surface mixed layer (SML) of the ocean and in the epilimnion of lakes. The origin of methane formed under oxic condition is hotly debated and several pathways have recently been offered to explain the "methane paradox." In this context, stable isotope measurements have been applied to constrain methane sources in supersaturated oxygenated waters. Here we present stable carbon isotope signatures for six widespread marine phytoplankton species, three haptophyte algae and three cyanobacteria, incubated under laboratory conditions. The observed isotopic patterns implicate that methane formed by phytoplankton might be clearly distinguished from methane produced by methanogenic archaea. Comparing results from phytoplankton experiments with isotopic data from field measurements, suggests that algal and cyanobacterial populations may contribute substantially to methane formationobserved in the SML of oceans and lakes
Bridge Unemployment in Germany: Response in Labour Supply to an Increased Early Retirement Age
TMG 1 (2014): Pandemic Disease in the Medieval World: Rethinking the Black Death, ed. Monica Green
The plague organism (Yersinia pestis) killed an estimated 40% to 60% of all people when it spread rapidly through the Middle East, North Africa, and Europe in the fourteenth century: an event known as the Black Death. Previous research has shown, especially for Western Europe, how population losses then led to structural economic, political, and social changes. But why and how did the pandemic happen in the first place? When and where did it begin? How was it sustained? What was its full geographic extent? And when did it really end? Pandemic Disease in the Medieval World is the first book to synthesize the new evidence and research methods that are providing fresh answers to these crucial questions. It was only in 2011, thanks to ancient DNA recovered from remains unearthed in London’s East Smithfield cemetery, that the full genome of the plague pathogen was identified. This single-celled organism probably originated 3000-4000 years ago and has caused three pandemics in recorded history: the Justinianic (or First) Plague Pandemic, around 541-750; the Black Death (Second Plague Pandemic), conventionally dated to the 1340s; and the Third Plague Pandemic, usually dated from around 1894 to the 1930s. This ground-breaking book brings together scholars from the humanities and social and physical sciences to address the question of how recent work in genetics, zoology, and epidemiology can enable a rethinking of the Black Death\u27s global reach and its larger historical significance. It forms the inaugural double issue of The Medieval Globe, a new journal sponsored by the Program in Medieval Studies at the University of Illinois at Urbana-Champaign.
This issue of The Medieval Globe is published with the support of the World History Center at the University of Pittsburgh.https://scholarworks.wmich.edu/medieval_globe/1000/thumbnail.jp
Contested firm governance, institutions and the undertaking of corporate restructuring practices in Germany
This article investigates the undertaking of corporate restructuring practices (employee downsizing and wage moderation) in Germany from 2008 to 2015. The article presents a political perspective that draws on the insights of the power resources approach and of institutional analyses. The theoretical framework highlights how institutional arrangements structure power relations within companies by empowering, in an asymmetrical manner, different categories of firm stakeholders (employees, managers and shareholders) as well as shaping how they relate to each other in an interactive manner. The article’s empirical findings point to the importance of extensive, but contingent, corporate restructuring in Germany. Companies are more likely to implement ‘defensive’ corporate restructuring practices under conditions of high leverage/debt than when confronted by shareholder value driven investors, thereby reflecting the presence of overlapping interests between employees and managers
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