Sökresultat

Filtyp

Din sökning på "*" gav 531540 sökträffar

No title

The archaeological excavation carried out in 1988 by the University of Málaga’s Area of Prehistory in the surrounding area of the Viera dolmen identified significant evidence of settlement and funerary practices in Antiquity. In the framework of the Research Project “Societies, Territories and Landscapes in the Prehistory of the Lands of Antequera (Málaga)” (2013-2018) a systematic study of the ma

High-temperature oxidation of acetylene by N2O at high Ar dilution conditions and in laminar premixed C2H2 + O2 + N2 flames

High-temperature oxidation of acetylene (C2H2) is studied behind reflected shock waves and in laminar flames. Atomic resonance absorption spectroscopy (ARAS) is employed to record oxygen atom concentration profiles for the mixture of 10 ppm C2H2 + 10 ppm N2O + argon and temperatures from 1688 K to 3179 K, extending the range of such data available from the literature. Laminar burning velocity of C

The Mauritian Archaeology and Cultural Heritage Project : exploring the impact of colonialism and colonisation in the Indian Ocean

The main aim of this project is to understand how European colonial activity influenced environmental and cultural transformations in this region of the Indian Ocean (Seetah 2010) by targeting specific locations (Figure 2), incorporating slave, indentured and imperial sites, as well as sites with high eco-archaeological potential. Establishing base-line soil conditions formed the focus of the firs

Extreme-resolution synchrotron X-Ray fluorescence mapping of ore samples

In order to maximise profit and sustainability of a mining operation, knowledge of the chemistry, mineralogy, texture, and structure of the ore is essential. Continuous advancements in analytical techniques enable studying these features with increasing detail. Synchrotron radiation X-ray fluorescence is unparalleled in its simultaneously high spatial resolution and detection range. Yet, its appli

Size-induced amorphous structure in tungsten oxide nanoparticles

The properties of functional materials are intrinsically linked to their atomic structure. When going to the nanoscale, size-induced structural changes in atomic structure often occur, however these are rarely well-understood. Here, we systematically investigate the atomic structure of tungsten oxide nanoparticles as a function of the nanoparticle size and observe drastic changes when the particle

Reconciling the Carbon Balance of Northern Sweden Through Integration of Observations and Modelling

The boreal biome plays an important role in the global carbon cycle. However, current estimates of its sink-source strength and responses to changes in climate are primarily derived from models and thus remain uncertain. A major challenge is the validation of these models at a regional scale since empirical flux estimates are typically confined to ecosystem or continental scales. The Integrated Ca

Analysis of "old" proteins unmasks dynamic gradient of cartilage turnover in human limbs

Unlike highly regenerative animals, such as axolotls, humans are believed to be unable to counteract cumulative damage, such as repetitive joint use and injury that lead to the breakdown of cartilage and the development of osteoarthritis. Turnover of insoluble collagen has been suggested to be very limited in human adult cartilage. The goal of this study was to explore protein turnover in articula

Variabilities and trends of rainfall, temperature, and river flow in sipi sub-catchment on the slopes of mt. Elgon, uganda

The variabilities in rainfall and temperature in a catchment affect water availability and sustainability. This study assessed the variabilities in rainfall and temperature (1981–2015) and river flow (1998–2015) in the Sipi sub-catchment on annual and seasonal scales. Observed daily rainfall and temperature data for Buginyanya and Kapchorwa weather stations were obtained from the Uganda National M

Towards explaining knowledge hiding through relationship conflict, frustration, and irritability : The case of public sector teaching hospitals

Organizations grow and excel with knowledge sharing; on the other hand, knowledge hiding is a negative behavior that impedes innovation, growth, problem solving, and timely correct decision making in organizations. It becomes more critical in the case of teaching hospitals, where, besides patient care, medical students are taught and trained. We assume that negative emotions lead employees to hide

Anomalous time-scaling of extreme events in infinite systems and Birkhoff sums of infinite observables

We establish quantitative results for the statistical behaviour of infinite systems. We consider two kinds of infinite system: i) a conservative dynamical system (f, X, µ) preserving a σ-finite measure µ such that µ(X) = ∞; ii) the case where µ is a probability measure but we consider the statistical behaviour of an observable φ: X → [0, ∞) which is non-integrable: R φ dµ = ∞. In the first part of

Fotboll i Finland på Svenska : Berättelser från början av 1900-talet

This article presents how printed media introduced, referred to and used football at the end of the 19th century and the beginning of the 20th century in Finland. The sources focus on popular press in Swedish that have existed in Finland since the 1820s. The presence of a strong Swedish-speaking minority, access to Scandinavian cultural influeces and historical connections to Sweden made it possib

Hinode/EIS Coronal Magnetic Field Measurements at the Onset of a C2 Flare

We study Hinode/EIS observations of an active region taken before, during, and after a small C2.0 flare in order to monitor the evolution of the magnetic field and its relation to the flare event. We find that while the flare left the active region itself unaltered, the event included a large magnetic field enhancement (MFE), which consisted of a large magnetic field strength increase to values ju

A Researcher’s Reflexive Note and Call for Collaborative Learning

Although it is vital for organizations to learn in order to be competitive, efficient, and innovative, it is one of the profound organizational dilemmas: organizations understand and have learnt that it is important to learn and yet it is difficult to ensure organizational learning. This is a personal and reflexive note about what I have learnt from research and practice about various attempts to

Matrix-Bound Growth Factors are Released upon Cartilage Compression by an Aggrecan-Dependent Sodium Flux that is Lost in Osteoarthritis

Articular cartilage is a dense extracellular matrix-rich tissue that degrades following chronic mechanical stress, resulting in osteoarthritis (OA). The tissue has low intrinsic repair especially in aged and osteoarthritic joints. Here, we describe three pro-regenerative factors; fibroblast growth factor 2 (FGF2), connective tissue growth factor, bound to transforming growth factor-beta (CTGF-TGFβ