Search results for "production [dark matter]"
showing 10 items of 216 documents
Superoxide-driven autocatalytic dark production of hydroxyl radicals in the presence of complexes of natural dissolved organic matter and iron
2020
We introduced superoxide as potassium superoxide (KO2) to artificial lake water containing dissolved organic matter (DOM) without or with introduced ferric iron complexes (DOM-Fe), and monitored the production rate of hydroxyl radicals as well as changes in the absorption and fluorescence properties of DOM. The introduction of KO2 decreased the absorption by DOM but increased the spectral slope coefficient of DOM more with complexed ferric Fe than without it. The introduction of KO2 increased the fluorescence of humic-like components in DOM without introduced ferric Fe but resulted in the loss of fluorescence in DOM with introduced ferric Fe. A single introduction of 13 μmol L−1 KO2 produce…
Productions en série vers 1500 avant notre ère. Des règles de fabrication au Bronze moyen entre la Manche et les Alpes à la lumière d’une étude morph…
2013
Some European Bronze Age objects were produced by what has been described as serial metalworking. One particularexample is the Middle Bronze Age palstave, massively produced and used in Western Europe during the mid-second millennium BC.These artefacts were often voluntarily buried together in hoards, meaning they were removed from the production network, thus avoidingany recycling. They are found intact, either as rough castings or ready for use. These homogeneous objects are grouped in sets of severalitems, or in tens, or even in hundreds. Such discoveries have immediately led to numerous questions as to the possible interpretation ofthis behaviour. It is clear that prehistoric craftsmen …
Approches quantitatives de la production de fer sur le site hallstattien de Bragny-sur-Saône (Saône-et-Loire)
2007
This study is based on an inventory of iron knives dated from the 8th to the 5th centuries BC and discovered in funerary and settlement sites in the South-West of France. The corpus consists of 608 artefacts. We established a typology allowing us to present a chronological and spatial distribution of each type. We then tried to determine the functions of the knives according to their type and their length. For those discovered in graves other objects in the grave assemblage were used as an additional criterion. When the funerary context was very clearly defined, we tried to determine the function, in the grave itself, of the knives.
DISCRIMINATIONS ETHNIQUES DANS L’ACCES AU LOGEMENT: UNE EXPERIMENTATION EN NOUVELLE-CALEDONIE
2016
Dans cette étude, nous mesurons les discriminations dans l’accès au logement dans le GrandNouméa, selon l’origine ethnique, en distinguant les origines kanak et européennes, et selon lequartier de résidence. Entre octobre 2015 et février 2016, nous avons répondu à 342 annonces enprésentant 4 candidats à la location pour chaque annonce, soit 1368 réponses à des annoncesimmobilières. Deux de nos candidats signalent par leur patronyme leur origine kanak, deuxsignalent une origine européenne. Dans chaque paire, un candidat donne un signal de stabilitéfinancière et professionnelle en indiquant explicitement qu’il est fonctionnaire. L’étude consiste àexploiter statistiquement ces données en les c…
Sexual Exploitation from Origin Countries to Destination Countries
2020
Human trafficking tends to follow a pattern of phases, such as recruitment, transfer, exploitation, protection, and sometimes re-trafficking. This chapter gives the opportunity for the reader to understand the influence of several factors within human trafficking at a geographical level, from the origin and transit country to the destination country, as well as at a cultural, social, and criminological level. All factors are considered according to victim nationality, in this case Romanian and Nigerian, including the vulnerable factors created by the criminal groups. In this chapter, the difference of citizenship between Nigerian women, who are third-country nationals, and Romanian women, w…
"Table 39" of "Measurements of Higgs boson properties in the diphoton decay channel with 36 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 13$ TeV w…
2019
Best-fit values and uncertainties of the simplified template cross sections times branching ratio.
Una nota sobre crisis y estratificación social
2012
La crisis actual ha creado un colectivo específico de personas en riesgo de caer en la exclusión social. Básicamente se trata de jóvenes e inmigrantes. En ambos casos se agrava cuando coincide con escasa formación y cargas familiares. Su futuro es más que incierto y cabe predecir que la sociedad tardará en encontrarles acomodo pues ni el actual modelo productivo, ni el que pueda sustituirlo, van a generar empleo para esos perfiles. Pero es que tampoco el actual modelo de protección social, lento en sus reacciones y sesgado en favor de currícula laborales estables y continuados, les dará cobertura suficiente. La E.P.A. nos permite una aproximación al problema desde el ejemplo de la Comunidad…
Impact des modes de production économes en pesticides de synthèse sur la qualité microbiologique des sols viticoles
2022
La viticulture est un secteur d‘activité agricole stratégique pour la France carelle représente le 1er poste exportateur du secteur agroalimentaire pourseulement 3% de la SAU Française. Toutefois, elle est aussi une forteconsommatrice de produits phytosanitaires avec 20% des pesticides utilisés enFrance à elle seule, couplé aussi a une forte mécanisation. Tout ceci entraîne unedégradation de la qualité des sols, qu’elle soit physique (Quiquerez et al., 2008),ou biologique (Dequiedt et al., 2011). Une baisse importante de la biodiversitédu sol altère ses grandes fonctions d’intérêts telles que la décomposition de lamatière organique et la fourniture d’éléments minéraux, l’effet barrière auxp…
Impact of supplier-specific investments in inter-organisational information systems on strategic electronic coordination: the moderation effect of bu…
2018
Abstract This paper examines the factors which influence sharing of the strategic information (in other words, electronic coordination) in a buyer–supplier dyad. The antecedents of this coordination are examined rather well in the transaction cost economics (TCE) theory and resource-dependency theory (RDT), while the supply chain management perspective is contemplated. The mentioned frameworks are used in the analysis. However, the research focus is narrowed down to the exploration of the antecedents of information exchange conducted via inter-organisational information systems (IOS). The empirical analysis is based on 198 observations of Norwegian companies operating in different types of …
Changes in the Structure of Agricultural Production in the European Union with Particular Emphasis on Poland and Latvia
2016
Many of phenomena, their growth or trend, are dependent on the interactions between neighboring areas. Model of shift-share analysis represent a growth rate (rate of change) of the different options phenomenon by taking into account the phenomenon of increase in the neighbouring area. The aim of the study is to analyze the changes in the commodity structure of agricultural production in the European Union according to the selected types of agricultural products using of shifts share analysis. The study assesses the rate of change the size of the phenomenon and identified and estimated the share of structural, sectoral and regional (local spatial) in the size of the effect of the global (agr…