Sökresultat

Flint has a limited distribution in the Scandinavian area, natural sources being largely confined to the southern regions. Here, the use of flint for making daggers and polished axes during the Neolithic is widespread and extensive. There is also evidence for mining of flint at Södra Sallerup in southern Sweden and on several sites in Denmark, but flint is available in till deposits as well. The

In this article, the issue of cross-linguistic influence in second language acquisition is examined from a processing perspective. Applying Processability Theory as the theoretical framework we claim that second language (L2) learners can only produce forms they are able to process.We thus argue that the first language (L1) influence on the L2 is developmentally moderated. Data were collected from

The Transition Radiation Tracker (TRT) sits at the outermost part of the ATLAS Inner Detector, encasing the Pixel Detector and the Semi-Conductor Tracker (SCT). The TRT combines charged particle track reconstruction with electron identification capability. This is achieved by layers of xenonfilled straw tubes with periodic radiator foils or fibers providing TR photon emission. The design and choic

This thesis consists of two parts which deal with different subjects. In the first part we study certain aspects of the representation theory of affine Kac-Moody Lie algebras and related structures. We notice that for any positive integer k, the set of (1,2)-specialized characters of the level k standard A₁¹-modules is the same as the set of rescaled graded dime

Popular Abstract in Swedish Yrsel är ett vanligt förekommande symtom hos patienter som besöker primärvården. Det är det vanligaste symtomet hos äldre patienter och har identifierats som en riskfaktor för fall och nedsatt funktion i innerörats balansorgan har hittats hos patienter med höftfrakturer och handledsfrakturer. Man har också påvisat att 25 % av patienterna med kvarstående besvär efter whiDizziness is a common reason for visits to primary health care, especially among elderly patients. From a physiotherapeutic perspective, this thesis aims to study the assessment and treatment of dizzy patients in primary health care. Interventions in papers I, III and IV comprised a vestibular rehabilitation programme. In paper I, patients with multisensory dizziness were randomized to interventi

Several different microorganisms have been suggested for coal desulfurization. In the present investigation, the thermophilic archaea Acidianus brierleyi (DSM 1651), Sulfolobus acidocaldarius (DSM 639) and Sulfolobus solfataricus (DSM 1616) were compared with the mesophilic bacterium Thiobacillus ferrooxidans (DSM 583) concerning their capability of removing sulfur from coal. The desulfurization r

Fluorescence spectra from different organs in rats and mice have been recorded to explore the potential of non-intrusive tissue diagnostics. The fluorescence was induced by a nitrogen laser that emitted at a wavelength of 337 nm. Optical multichannel techniques were used for the detection. Spectra are given from 19 different sites in Wistar/Furth rats, including an inoculated malignant tumour. The

During the spring of 2003 ninety-five water bodies in southeastern Estonia were surveyed for chrysophytes. The sampling was carried out as the ice broke up, when, within two weeks, the water temperature rose from 3 degrees C to 13 degrees C. Large lakes to small pools of different water chemistry were investigated. The plankton collected was studied alive within a few hours after sampling. Prepara

Mathematical methods for production scheduling of a complex integrated pulp and paper mill are discussed. The scheduling problem is formulated as an optimal control problem for a multivariable deterministic system. A method of solution for the problem, using optimal control theory, is derived. The method developed is suitable for an on-line process control computer.

Allports and Ross (1967) Intrinsic and Extrinsic scales and Batsons and Schoenrades (1991b) Quest scale are re-analyzed from a unidimensional perspective by using the Rasch measurement model (RM). The RM of choice, Rating scale analysis, offers an alternative scaling procedure to Factor analysis. The benefit by using RM, is that the results can be interpreted as an acquired step-by-step process. T

Let H be a Hilbert space of analytic functions on the open unit disc D such that the operator M. of multiplication with the identity function. defines a contraction operator. In terms of the reproducing kernel for H we will characterize the largest set Delta(H) subset of partial derivative D such that for each f, g is an element of H, g not equal 0 the meromorphic function f/g has nontangential li

Leukotrienes (LTs) and prostaglandins (PGs) are metabolites of arachidonic acid that play major roles in various inflammatory conditions. The release of these mediators, by cells recruited to or present at the site of inflammation, modulate/influence the magnitude of the inflammatory response. A better understanding of eicosanoids and how their receptors trigger intracellular signaling during infl

Two cyclomaltodextrinases (CDase) of thermophilic origin were investigated for their action on cyclodextrins. Although most CDases known today are made up of at least homodimers, one of the enzymes studied was shown to be a monomer in solution, while the other one was a dimer. Interestingly, the dimeric enzyme had a much superior selectivity for a cyclodextrin substrate compared to its monomeric h

This thesis contains two parts. The first part deals with a stochastic impulse control problem, subject to the restriction of a minimum time lapse in between interventions made by the controller. We prove existence of an optimal control and show that the value function of the control problem satisfies a system of quasi-variational inequalities. Furthermore, we apply the control method to pri

The aims of the present study were to determine whether a parental history of any fracture or hip fracture specifically are significant risk factors for future fracture in an international setting, and to explore the effects of age, sex and bone mineral density (BMD) on this risk. We studied 34,928 men and women from seven prospectively studied cohorts followed for 134,374 person-years. The cohort

Test measures of field-dependence-independence and impulsiveness-control were obtained from two groups of diabetic children and their parents, the children being in optimal (O, n = 12) or poor (P. n = 27) metabolic control and, according to the judgment of clinicians, showing optimal or poor psychological adaptation. Children of the O-group scored lower in impulsiveness and higher in realistic fun