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In heterogeneous catalysis the reactions occur on the surface of a catalyst. To understand the reaction pathways, a detailed understanding on an atomic level is critical. However, the gas atmosphere surrounding the surface dictates the interaction between the surface and the gas. At low pressures this is often neglected, but as the community turns to higher pressures it becomes important to consid

The Late Ordovician stratigraphic record integrates glacio-eustatic processes, water-column redox conditions and carbon cycle dynamics. This complex stratigraphic record, however, is dominated by deposits from epeiric seas that are susceptible to local physical and chemical processes decoupled from the open ocean. This study contributes a unique deep water basinal perspective to the Late Ordovicia

The end Ordovician (Hirnantian) extinction was the first of the five big Phanerozoic extinction events, and the first that involved metazoan-based communities. It comprised two discrete pulses, both linked in different ways to an intense but short-lived glaciation at the South Pole. The first, occurring at, or just below, the Normalograptus extraordinarius graptolite Biozone, mainly affected nekto

Adequate food packaging is important to ensure food quality and prolong the shelf life of food. Frequently, the method of modified atmosphere packaging (MAP) is used. We used a tunable diode laser spectroscopy technique to detect the oxygen content in food packages, e.g., in packaged milk and bread. Different detection geometries were adopted to be able to collect scattering light that had passed

Protons or a-particles from a 3 MV tandem Pelletron are used to induce characteristic x-rays, which are detected by a Si(Li)-detector. To optimize the quality and speed of data taking we use an absorber with a hole, pile-up rejection and on-demand beam. Forty samples may be entered simultaneously into the vacuum, and their positioning is operated by pushbuttons. The system is prepared for minicomp

Different applications of high power ultrasound in industry and medical applications are based on the propagation and collapse of acoustic cavitation bubbles. This paper presents an enhanced numerical model and simulated results of formation and collapse of a single bubble in a liquid for two cases: bubble with uniform pressure and a bubble with variable pressure inside. For the two cases, both he

We present new abundance determinations of neutron-capture elements Ge, Zr, Os, Ir, and Pt in a sample of 11 metal-poor (-3.1<=[Fe/H]<=-1.6) Galactic halo giant stars, based on Hubble Space Telescope UV and Keck I optical high-resolution spectroscopy. The stellar sample is dominated by r-process-rich stars such as the well-studied CS 22892-052 and BD +17°3248 but also includes the r-process-poor,

A new VLSI architecture for a real-time pipeline FFT processor is proposed. A hardware-oriented radix-22 algorithm is derived by integrating a twiddle factor decomposition technique in the divide-and-conquer approach. The radix-22 algorithm has the same multiplicative complexity as the radix-4 algorithm, but retains the butterfly structure of the radix-2 algorithm. The single-path delay-feedback a

This study is part of a larger project that aims at balancing the higher education biased picture of knowledge transfer through international mobility, by emphasising workers on lower educational levels in 20th and 21st century Sweden. The present part study examines the views on experience and knowledge acquired abroad among students at six upper secondary schools connected with Swedish multinati

This paper presents a theoretical analysis of the neoliberal production of anxiety in academic faculty members in universities in Northern Europe. The paper focuses on neoliberalization as it is instantiated through audit and ranking systems designed to produce academia as a space of economic efficiency and intensifying competition. We suggest that powerful forms of competition and ranking of acad

Total hip replacement (THR) is an effective intervention with a good cost/benefit ratio. Worldwide, each year it brings relief in the form of improved function and decreased pain to at least half a million patients with severe osteoarthritis (OA). Since the introduction by Charnley more than 30 years ago, the basic concept remains much the same, but with a multitude of changes in details of surgic

Innovation is generally a combination of productive means that are internal and external to a firm. Some of the external resources can be obtained locally, but for some of them firms need to venture abroad. Arrangements to cooperate on innovation facilitate access to the external sources of knowledge. Using a large data set of firms in 12 countries from the third Community Innovation Survey, inclu

New Public Management (NPM) was the catch phrase of the reforms in the public research and higher education sector for the last decades. The postulated effect of the NPM reforms is increased efficiency in governmental resource spending on the public higher education and research institutions. Though backed by theoretical considerations, this hypothesis has hardly been tested empirically. Using a u