The purpose of this publication was to present and evaluate the methods for reference dosimetry in the epithermal neutron beam at the neutron capture therapy facility at Studsvik. Measurements were performed in a PMMA phantom and in air using ionization chambers and activation probes in order to calibrate the epithermal neutron beam. Appropriate beam-dependant calibration factors were determined u

Abstract is not available

A previous study showed that vibratory stimulation of neck muscles in humans induced short-latency electromyographic (EMG) activation of lower leg muscles, producing postural reactions at the feet. These findings indicated that cervical proprioception contributes to stabilization of stance through rapidly integrated pathways. However, as vibration may excite both proprioceptive and vestibular affe

Den amerikanska bidragsreformen 1996 var den mest omvälvande socialpolitiska händelsen i USA sedan 1930-talet. Ändå har det talats ganska tyst om den – i Sverige. I denna artikel diskuteras utfallet av reformen med hjälp av några nyutkomna böcker, dels Howard Kargers och David Stoesz’ stora lärobok om amerikansk socialpolitik, dels Jeffrey Groggers och Lynn Karolys ambitiösa utvärdering av utvärde

A fast spectral approximation of a narrow-band computer model is proposed for prediction of thermal radiation in a generally nonisothermal and nonhomogeneous combustion environment. The approximation is made by assuming each discretized spatial element along a line of sight to be locally "gray" within each small narrow-band spectrum interval. For each spatial element, the local equivalent spectral

5-Hydroxytryptamine has been suggested to be a mediator in peripheral cold-induced vasospasm. In order to investigate the contribution of different 5-hydroxytryptamine receptor subtypes in the contractile response during cooling, segments of subcutaneous hand veins obtained from 50 patients undergoing hand surgery were examined in vitro in organ baths. The temperature in the bath was initially 37

It is argued that the so-called fitting attitude- or buck-passing pattern of analysis may be applied to personal values too (and not only to impersonal values, which is the standard analysandum) if the analysans is fine-tuned in the following way: An object has personal value for a person a, if and only if there is reason to favour it for a’s sake (where “favor” is a place-holder for different pro

The large body of recently measured energies and electromagnetic properties of high-spin states in the Z = 40-45, N = 46-50 isotopes is consistently accommodated in the shell model using empirical and schematic two-body matrix elements in the (1g(9/2), 2p(1/2)) model space. In particular, we test the purity of seniority, the effects of an enlarged model space (including the 1f(5/2), 2p(3/2) orbits

Neurogenesis and angiogenesis are stimulated by a number of antidepressant treatments, and cellular plasticity has emerged as a phenomenon with great relevance to the etiology and treatment of depression. In paper I we characterize how ECS-induced endothelial cell proliferation leads to vascularization of the adult rat hippocampus. In the molecular layer of the hippocampus a series of 10 ECS-treat

The Bremmer series is used to reduce a complex scattering problem to a sequence of simpler single-scattering problems. In the Bremmer series, the wave equation is first decomposed into a coupled system of one-way wave equations. The system is then decoupled into a sequence of one-way wave equations with a fixed-point iteration. In this paper, a left-symbol representation of the decomposition opera

Background: Two contradictory hypotheses have been proposed to explain the relationship between allergic conditions and malignancies, the immune surveillance hypothesis and the antigenic stimulation hypothesis. The former advocates that allergic conditions may be protective against development of cancer, whereas the latter proposes an increased risk. This relationship has been studied in several c

Abstract is not available

Objective. CHEK2* 1100delC is a frame-shifting germ-line mutation which abolishes the function of cell-cycle-checkpoint kinase 2 (chk2) and hence impairs the cells' response to DNA damage. This variant occurs in approximate to 1% of the general Western population but has been reported to be more common among patients with breast and prostate cancer. The aim of this study was to investigate the sig

The mitochondrial oxidative phosphorylation system in plants possesses a variety of alternative pathways that decrease respiratory ATP production. These alternative pathways are mediated by three classes of bypass proteins: the type II NAD(P) H dehydrogenases (which circumvent complex I of the electron transport chain), the alternative oxidases (AOXs; which circumvent complexes III and IV) and the

Background: The Gross Motor Function Classification System (GMFCS) has become an important tool to describe motor function in children with Cerebral Palsy (CP). The Manual Ability Classification System (MACS) was developed recently as a corresponding classification of manual ability. The aim of this study was to describe the association between gross motor function and manual ability in a total po