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Yrkesutbildningens utveckling 1940 – 1975

Arbetsmarknadens parter etablerade sig som kraftfulla aktörer på yrkesutbildningens område i början av 1940-talet med utgångspunkt från arbetsmarknadens krav och behov av utbildad arbetskraft. Huvuddelen av utbildningen skedde i företag på arbetsmarknadens villkor och kontakterna med andra delar av utbildningssystemet var mycket begränsad. Egentligen uppfattades yrkesutbildningen vid den tiden kna

Om darrningar

The first Swedish edition of Emanuel Swedenborg's manuscript in neurology from 1720

Global environmental governance in the Anthropocene: An introduction

The term Anthropocene denotes a new geological epoch characterized by the unprecedented impact of human activities on the Earth’s ecosystems. While the natural sciences have advanced their understanding of the drivers and processes of global change considerably over the last two decades, the social sciences lag behind in addressing the fundamental challenge of governance and politics in the Anthro

The Effects of ATT and Non-ATT Systems and Treatments on Driver Speed Behaviour

MASTER (MAnaging Speeds of Traffic on European Roads) aims to provide re-commendations for speed management strategies and policies and develop guidelines for the development of innovative speed management tools. This document reviews the relevant literature and various Advanced Transport Telematics (ATT) and traditional (non-ATT) methods of reducing driver speed are evaluated. It is concluded tha

A Contextual Framework for Computerized Information Systems. An exploratory study of computerized information systems in nine manufacturing organizations with regard to technological and environmental factors

Research within contingency theory recognizes and postulates the relevance of contextual factors to the design of organizations. Thus organizations are dependent on the environments in which they operate and on the technologies they utilize. Organizations therefore need to process information about their environments and technologies. Information systems, including computerized information sytems,

Pilot Assisted Channel Estimation for OFDM in Mobile Cellular Systems

The use of pilot symbols for channel estimation introduces overhead and it is thus desirable to keep the number of pilot symbols to a minimum. The number of needed pilot symbols for a desired bit error rate and Doppler frequency is highly dependent on the pilot pattern used in orthogonal frequency division multiplexed, OFDM, systems. Five different pilot patterns are analysed by means of resulting

Compressed domain packet loss concealment of sinusoidally coded speech

In this paper we consider the problem of packet loss concealment for Voice over IP (VoIP). The speech signal is compressed at the transmitter using A sinusoidal coding scheme working at 8 kbit/s. At the receiver, packet loss concealment is carried out working directly on the quantized sinusoidal parameters, based on time-scaling of the packets surrounding the missing ones. Subjective listening tes

Clio på bio. Om amerikansk film, historia och identitet

History in films often reflects attitudes in contemporary society. Thus, films deals more with the time when it was produced rather then the historical time that it is set in. In Clio på bio, I discuss how american history have been "written" and "rewritten" in films due to changes in the american society from late 19th century to the early 21st century.

Molecular diversity of telomeric sequences

Telomeric DNA generally comprises a repetitive, noncoding sequence which terminates in a single‑stranded extension, the 3' overhang. Although these species‑specific repeats show a large diversity in sequence and length, they comprise some specific characteristic conserved features. Therefore, analyses of the telomeric repeats of various organisms have delivered important insights concerning the or