Martin Luther University of Halle-Wittenberg

About: Martin Luther University of Halle-Wittenberg is a education organization based out in Halle, Germany. It is known for research contribution in the topics: Population & Liquid crystal. The organization has 20232 authors who have published 38773 publications receiving 965004 citations. The organization is also known as: MLU & University of Wittenberg.

Avoiding invasive mechanical ventilation by extracorporeal carbon dioxide removal in patients failing noninvasive ventilation

Abstract: Purpose To evaluate whether extracorporeal carbon dioxide removal by means of a pumpless extracorporeal lung-assist (PECLA) device could be an effective and safe alternative to invasive mechanical ventilation in patients with chronic pulmonary disease and acute hypercapnic ventilatory failure not responding to noninvasive ventilation (NIV).

Genotype-phenotype correlations in hereditary medullary thyroid carcinoma: oncological features and biochemical properties.

Abstract: In hereditary medullary thyroid carcinoma (MTC), few genotype-phenotype correlations have been established. RET genotypes (exons 10, 11, 13, and 14) of 63 patients with hereditary MTC (from November 1994 to October 1999) were correlated with age at diagnosis, sex, the TNM system, and basal calcitonin levels. Mutations in exons 10, 11, 13, and 14 were demonstrated in 22% (14 of 63), 54% (34 of 63), 21% (13 of 63), and 3% (2 of 63). The median ages at diagnosis differed significantly (38, 27, 52, and 62 yr; P = 0.003). When grouped by cysteine codons (exons 10 and 11 vs. exons 13 and 14), this difference became even more evident (30 vs. 56 yr; P = 0.001). Apart from age at diagnosis, no other significant associations were noted. Based hereon, three MTC risk groups were devised according to genotype: a high risk group (codons 634 and 618) with the youngest ages of 3 and 7 yr at diagnosis; an intermediate risk group (codons 790, 620, and 611) with ages of 12, 34, and 42 yr; and a low risk group (codons 768 and 804) with ages of 47 and 60 yr, respectively. Age at diagnosis was unrelated to specific nucleotide and amino acid exchange within each codon. The current data demonstrate that there is a significant genotype-phenotype correlation, allowing for a more individualized approach to the timing and extent of prophylactic surgery.

Multi-body dynamics simulation of geometrically exact Cosserat rods

Abstract: In this paper, we present a viscoelastic rod model that is suitable for fast and accurate dynamic simulations. It is based on Cosserat’s geometrically exact theory of rods and is able to represent extension, shearing (‘stiff’ dof), bending and torsion (‘soft’ dof). For inner dissipation, a consistent damping potential proposed by Antman is chosen. We parametrise the rotational dof by unit quaternions and directly use the quaternionic evolution differential equation for the discretisation of the Cosserat rod curvature.