In Mozambique, despite considerable investments in the promotion of drinking water supplies, the access to quality water of sufficient quantity for the majority of people is still far from optimal. Current official figures report that nearly half of the country´s population and about 45 per cent of urban residents do not have access to safe water. As a result of poor performance or absence of publ

We consider ultra light-weight constructions of message authentication in hardware applications like RFID. We propose a new type of constructions that will be less costly to implement in hardware, compared to any previous construction. These constructions are based on the framework of universal hash functions, Toeplitz matrices and

In recent years, there has been growing interest in stabilized index reduction techniques for differential-algebraic equations (DAE) of multibody dynamics. A number of the proposals which incorporate the idea of a projection onto the constraint manifold are discussed. The methods are divided into classes based on whether the projection is performed on the residuals of the discretized DAE or on the

If we admit that, with the exception of language, human perception is predominantly visual, it is reasonable to think that all phenomena conveyed by the visual senses have something in common, but then visual semiotics/visual culture will comprehend much more than painting, sculpture, and architecture. The double coding hypotheses of cognitive psychology, as well as Lessing’s classical opposition

Image processing is one of the popular applications of Cellular Neural Networks. Macro enriched field-programmable gate-arrays can be used to realize such systems on silicon. The paper discusses a pipelined implementation that supports the handling of gray-level images at 180 to 240 Mpixels per second by exploiting the Virtex-II macros to spatially unroll the local feedback

Popular Abstract in Swedish Akut öroninflammation är vanligt hos barn och många barn får sin första öroninflammation redan vid tidig ålder. Öronbarn kallas de barn som drabbas av upprepade öroninflammationer. Dessa barn drabbas oftare än andra barn också av andra infektioner. Flera undersökningar har utförts tidigare för att kartlägga olika riskfaktorer. Undersökningarna har visat varierande resulAcute otitis media (AOM) is a common complication after episodes of respiratory tract infections in childhood. Some children have recurrent episodes and they are often called otitis-prone. These children are prone not only to middle-ear diseases but also to other infectious diseases. The aims of the present study of otitis-prone children and controls were to describe the overall illness and need f

A short study of linguistical features in authors of the 10th c. AD which may indicate a subtext similar to Modern Greek.

Exact diagonalization calculations reveal that the energy spacing Delta in the conduction band tunes the interplay between the local Kondo and nonlocal Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions, giving rise to a Doniach phase diagram for a nanocluster with regions of prevailing Kondo or RKKY correlations. The parity of the total number of electrons alters the competition between the Kondo

Popular Abstract in Swedish Det finns ett stort behov av molekyler eller reagenser för korrekt och snabb diagnos och/eller behandling av sjukdom. På laboratorier används särskilda verktyg för att ta fram sådana reagenser. Verktygen utgörs ibland av levande organismer, som t ex bakterier och virus, och kallas bioteknologiska verktyg. Ett av dessa verktyg baseras på användandet av en speciell typ avPhage display technology is a biotechnological tool that can be used to obtain molecules/reagents able to discriminate between target molecules. Reagents with such features can be used in diverse settings like biological chemistry, diagnostics and in therapeutic applications. Phage display technology is based on the use of recombinant DNA technology, bacteria and a special kind of bacterial virus,

Popular Abstract in Swedish Denna avhandling grundar sig på forskning inom fältet ``högenergetisk tungjonsfysik'', där man studerar materia under extrema förhållanden vad gäller temperatur och densitet. Experimenten utförs på stora anläggningar där atomkärnor accelereras till höga hastigheter innan de kollideras med varandra. Höga krav ställs på de partikeldetektorer som byggs upp kring sådana intPHENIX is one of four experiments at the Relativistic Heavy-Ion Collider, RHIC. The high-energy heavy-ion collisions provided by this accelerator offer the possibility to study nuclear matter at high temperature and density. The high multiplicity of particles produced in these collisions puts high demands on detector performance. Providing space points along particle trajectories, the Pad Chamber