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Hydrolysis of nonstarch carbohydrates of wheat-starch effluent for ethanol production

A (polysaccharide-rich) waste stream derived from a combined starch and ethanol factory was investigated regarding hydrolysis of the nonstarch carbohydrates for ethanol production. The material was characterized and processed to yield the maximum amount of sugars. The starch fraction was hydrolyzed with amylolytic enzymes, and the resulting fibrous material was separated by filtration. This materi

Spatially varying regularization based on spectrally resolved fluorescence emission in fluorescence molecular tomography

Fluorescence molecular tomography suffers from being mathematically ill-conditioned resulting in non-unique solutions to the reconstruction problem. In an attempt to reduce the number of possible solutions in the underdetermined system of equations in the reconstruction, we present a method to retrieve a spatially varying regularization map outlining the feasible inclusion position. This approach

Crystal structure of an mRNA-binding fragment of Moorella thermoacetica elongation factor SelB.

SelB is an elongation factor needed for the co-translational incorporation of selenocysteine. Selenocysteine is coded by a UGA stop codon in combination with a specific downstream mRNA hairpin. In bacteria, the C-terminal part of SelB recognizes this hairpin, while the N-terminal part binds GTP and tRNA in analogy with elongation factor Tu (EF-Tu). We present the crystal structure of a C-terminal

Mimicking electron transfer reactions in photosystem II: Synthesis and photochemical characterization of a ruthenium(II) tris(bipyridyl) complex with a covalently linked tyrosine

In the natural photosynthetic reaction center photosystem II, absorption of a photon leads to photooxidation of the primary electron donor P-680, which subsequently retrieves electrons from a tyrosyl residue, functioning as an interface to the oxygen-evolving manganese complex. In a first step toward mimicking these reactions, we have made a Ru(II)-polypyridine complex with an attached tyrosyl moi

Nurses’ satisfaction with nursing care and work at three care units for severely demented people.

The aim of this study is to investigate the degree of job satisfaction, burnout and strain among nurses (n=134) working in three care units for demented people in southern Sweden. Three questionnaires were used: the Maslach burnout inventory (MBI), the work-related strain inventory (WRSI), and a recently developed measure for assessing job satisfaction. Based on principal component analysis, an ei

Local galactic evolution

The evolution of the Solar neighbourhood is followed using a unique,magnitude complete and kinematically unbiased sample of 14,000 F, G, andK dwarfs. Metallicity, age, space motion and galactic orbits have beendetermined for all stars. The result is a detailed view of the complexevolution of the local Milky Way, which must be matched by any model forthe chemical and dynamical evolution of the Gala

Motives for becoming and remaining member of patient associations: a study of 1,810 Swedish individuals with cancer associations.

Patient associations for cancer patients (PACPs) are increasing in number as well as in the number of members. We utilised a questionnaire to investigate how members of 13 PACPs motivated their memberships. The study included 1,810 individuals who had been treated for breast cancer, gynaecological cancer, or prostate cancer. Through questionnaires these individuals were asked to articulate why the

Direct observation of structural relaxation in amorphous compound semiconductors

Extended X-ray absorption fine structure measurements have been used to characterize, at the atomic level, the thermally induced structural relaxation of InAs amorphized by ion implantation. Our results are consistent with a relaxation mechanism mediated by point-defect annihilation with concomitant reduction in both chemical and structural disorder. Though relaxation yields a decrease in chemical

Regulated Exocytosis and Kiss-and-Run of Synaptic-Like Microvesicles in INS-1 and Primary Rat {beta}-Cells.

We have applied cell-attached capacitance measurements to investigate whether synaptic-like microvesicles (SLMVs) undergo regulated exocytosis in insulinoma and primary pancreatic beta-cells. SLMV and large dense-core vesicle (LDCV) exocytosis was increased 1.6- and 2.4-fold upon stimulation with 10 mmol/l glucose in INS-1 cells. Exocytosis of both types of vesicles was coupled to Ca(2+) entry thr

Disponent i brytningstid : En problematisering av AB Robertsfors Bruks lednings ambitioner och möjligheter vad avser utvecklingen av lönevillkor och sociala anordningar i Robertsfors 1925-35

A study of the ambitions of the managers at AB Robertsfors Bruk and their impact on courses of action in the development of wage policy and social arrangements in the community of Robertsfors during the period 1925-35.This study deals with employer actions during a period of both internal and external change to the organization. The main focus is in the areas of wage policy and social arrangements

Mean value surfaces with prescribed curvature form

The Gaussian curvature of a two-dimensional Riemannian manifold is uniquely determined by the choice of the metric. The formulas for computing the curvature in terms of components of the metric, in isothermal coordinates, involve the Laplacian operator and therefore, the problem of finding a Riemannian metric for a given curvature form may be viewed as a potential theory problem. This problem has,

Hyrtl's anastomosis is normally developed in placentas from small for gestational age infants.

Background. The aim of this study was to investigate the occurrence and appearance of the anastomosis between the two umbilical arteries in placentas from infants small for gestational age (SGA). Methods. The arterial systems of 64 placentas from singleton pregnancies resulting in SGA infants were visualized by angiography. The method allowed study of the anastomosis between the umbilical arterie