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A lower bound on the free distance of LDPC convolutional codes defined by syndrome former matrices comprised of MtimesM permutation matrices is derived. We show that asymptotically, i.e., as Mrarrinfin, for almost all codes in the ensemble the free distance grows linearly with constraint length

An introduction to an anthology on Öresund region research.

Under senare år har religion kommit att återigen spela en framträdande roll i svensk och internationell kontext. Mer eller mindre dagligen konfronteras vi med frågor som relaterar till religion och mänskliga rättigheter. Detta ställer högre krav på kunskaper om och förhållningssätt till det som sker runt omkring oss. I den här antologin skriver svenska forskare om religion och mänskliga rättighet

A model catalyst system with a loading range between 1/4 to 10 theoretical layers of vanadium oxide on TiO2(B ) support was tried for selective ammoxidation and oxidation of toluene. In the case of ammoxidation, a peak in conversion rate per unit surface area was found for a catalyst with a coverage of about 2 theoretical layers, indicating a strong interaction between the catalyst and the otherwi

Enterprise resource planning (ERP) systems have originally been developed for large enterprises (LEs). However, market saturation, integration of supply chains and technology improvements have led to small and medium-sized enterprises (SMEs) have started adopting ERP systems. Though there is a focus shift from LEs to SMEs in the ERP market, most academic literature on ERP systems is based on findi

The ambitious goal of the upcoming IEEE 802.11ax (HEW) standard for wireless LANs (WLANs) to enhance throughput by four times (and beyond), compared with IEEE 802.11ac, demands a radical improvement of present medium access control (MAC) functionality. To this end, a promising paradigm would be a graceful migration towards new MAC protocols which incorporate higher certainty in their decisions. Ho

We have in this study analyzed the function of the murine Joining chain (J chain) in vivo. J chain is a polypeptide found in sera and secretions in complex with pentameric IgM and dimeric IgA. J chain is expressed in terminally differentiated B lymphocytes and needed for the transport of dimeric IgA and pentameric IgM over mucosal surfaces via the poly Ig receptor. A mouse deficient for J chain wa

Tourism has complex relationships with weather and climate, and there is consensus that tourism could be substantially affected by climatic change. While considerable research has been presented on how climatic change is likely to affect destinations and tourism stakeholders in the future, there remains limited understanding of the weather preferences of tourists. This is a research priority if th

An analysis of Jens Lapidus' novel and the 2012 film adaptation as symptoms of the neoliberal backlash of the Swedish social, political and economic system.