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Patterns of allozyme variation in Nordic Pilosella

Patterns of allozyme variation have been investigated in 101 clones representing most of the morphological variation (and taxa) found in the amphi-apomictic genus Pilosella Hill. in the Nordic countries. Levels of variation were very high, both within narrowly defined taxa and within the whole data-set, but the correlation between a morphology-based taxonomy and patterns of allozyme variation was

Work Disability in Rheumatoid Arthritis -- Development over 15 Years and Evaluation of Predictive Factors Over Time.

Objective. To investigate work disability rates over 15 years in an early rheumatoid arthritis (RA) cohort and to evaluate predictive factors during the course of the study. Methods. All patients with early RA of working age (n = 148) were followed and treated at a team care unit. Mean disease duration at inclusion was 1 year. Work characteristics and disease-related variables were recorded annual

The Strike of the Demon: On Fitting Pro-attitudes

According to an influential tradition in value analysis, to be valuable is to be a fitting object of a pro-attitude. If it is fitting to favor an object for its own sake, then, on this view, the object has final value, that is, it is valuable for its own sake. If it is fitting to have a pro-attitude toward an object for the sake of its effects, then its value is instrumental. And so on. Disvalue i

Designing simultaneous saccharification and fermentation for improved xylose conversion by a recombinant strain of Saccharomyces cerevisiae.

Wheat straw is an abundant agricultural residue which can be used as a raw material for bioethanol production. Due to the high xylan content in wheat straw, fermentation of both xylose and glucose is crucial to meet desired overall yields of ethanol. In the present work a recombinant xylose fermenting strain of Saccharomyces cerevisiae, TMB3400, cultivated aerobically on wheat straw hydrolysate, w

Interleukin-1-receptor antagonist in type 2 diabetes mellitus

Background: The expression of interleukin-1-receptor antagonist is reduced in pancreatic islets of patients with type 2 diabetes mellitus, and high glucose concentrations induce the production of interleukin-1(beta) in human pancreatic beta cells, leading to impaired insulin secretion, decreased cell proliferation, and apoptosis. Methods: In this double-blind, parallel-group trial involving 70 pat

Effects of buffering in hypercapnia and hypercapnic hypoxemia

Anesthetized, paralyzed and mechanically ventilated pigs were exposed to extreme hypercapnia (PaCO2 approximately 20 kPa) at FiO2 0.4 for 480 min, with (n = 6) or without (n = 6) continuous infusion of isotonic buffers (bicarbonate and trometamol). Arterial pH was higher in buffered animals than controls, 7.21 +/- 0.01 vs 7.01 +/- 0.01 (mean +/- s.e.mean, P < 0.01). Serum osmolality and PaCO2 did

Matching protein structures with fuzzy alignments

Unraveling functional and ancestral relationships between proteins as well as structure-prediction procedures require powerful protein-alignment methods. A structure-alignment method is presented where the problem is mapped onto a cost function containing both fuzzy (Potts) assignment variables and atomic coordinates. The cost function is minimized by using an iterative scheme, where at each step

Quantum-dot thermometry

We present a method for the measurement of a temperature differential across a single quantum dot that has transmission resonances that are separated in energy by much more than the thermal energy. We determine numerically that the method is accurate to within a few percent across a wide range of parameters. The proposed method measures the temperature of the electrons that enter the quantum dot a

Effect of acetic acid and furfural on cellulase production of Trichoderma reesei RUT C30

Because of the high temperature applied in the steam pretreatment of lignocellulosic materials, different types of inhibiting degradation products of saccharides and lignin, such as acetic acid and furfural, are formed. The main objective of the present study was to examine the effect of acetic acid and furfural on the cellulase production of a filamentous fungus Trichoderma reesei RUT C30, which

Mitochondrial DNA recombination in a free-ranging Australian lizard

Mitochondrial DNA (mtDNA) is the traditional workhorse for reconstructing evolutionary events. The frequent use of mtDNA in such analyses derives from the apparent simplicity of its inheritance: maternal and lacking bi-parental recombination. However, in hybrid zones, the reproductive barriers are often not completely developed, resulting in the breakdown of male mitochondrial elimination mechanis

Is craniofacial dysmorpholgy correlated with structural brain anomalies in schizophrenia?

This study aimed to examine the relationship between craniofacial dysmorphology and anomalies of brain morphology in schizophrenia. Assessments of craniofacial dysmorphology and magnetic resonance imaging of brain were performed independently of each other and blind to each other in 24 males with schizophrenia and 16 male controls. Ventricular cerebrospinal fluid volume was negatively correlated w

Tamoxifen-induced Rapid Death of MCF-7 Breast Cancer Cells is mediated via ERK Signaling and can be abrogated by Estrogen.

Tamoxifen (Tam) is widely used in chemotherapy of breast cancer. It inhibits proliferation and induces apoptosis of breast cancer cells by estrogen receptor (ER)-dependent modulation of gene expression. In addition, recent reports have shown that Tam also has nongenomic effects. We previously reported induction of a rapid mitochondrial death program in breast cancer cells at pharmacological concen

Dynamic nested brackets

We consider the problem of maintaining a string of n brackets '('or')' under the operation reverse(i) that changes the ith bracket from '('to')' or vice versa, and returns 'yes' if and only if the resulting string is properly balanced. We show that this problem can be solved on the RAM in time O(log n/log log n) per operation using linear space and preprocessing. Moreover, we show that this is opt