The rate of a network code is the ratio of the block sizes of the network’s messages and its edge codewords. The linear capacity of a network over a finite ring alphabet is the supremum of achievable rates using linear codes over the ring. We prove the following for directed acyclic networks: (i) For every finite field F and every finite ring R, there is some network whose linear capacity over ...

For integers d and k satisfying 0 d k, a binary sequence is said to satisfy a one-dimensional (d; k) run length constraint if there are never more than k zeros in a row, and if between any two ones there are at least d zeros. For n 1, the n-dimensional (d; k)-constrained capacity is defined as C(n) d;k = lim m1;m2;:::;mn!1 log2N (n;d;k) m1;m2;:::;mn m1m2 mn where N (n;d;k) m1;m2;:::;mn denotes ...

Segmental defect regeneration has been a clinical challenge. Current tissue-engineering approach using porous biodegradable scaffolds to delivery osteogenic cells and growth factors demonstrated success in facilitating bone regeneration in these cases. However, due to the lack of mechanical property, the porous scaffolds were evaluated in non-load bearing area or were stabilized with stress-shi...

BACKGROUND Previous studies on the influence of HLA-DRB1 alleles on multiple sclerosis (MS) susceptibility and clinical course have mostly employed the 2-point genotyping method. OBJECTIVE To assess the influence of HLA-DRB1 alleles and allele interactions on disease risk and clinical course in a large West Australian MS patient cohort using high-resolution genotyping. METHODS Four digit HL...

Die Steigerung der Attraktivität von Wohnungen ist für Wohnungsunternehmen unter dem Aspekt der demografischen Entwicklung eine neue Herausforderung. Der Einsatz von innovativen Informationsund Kommunikationstechniken kann zur Attraktivitätssteigerung beitragen, wenn entsprechende softwaretechnische Ansätze bei einer Softwareund Systemarchitektur umgesetzt werden. In dem Forschungsprojekt Smart...

Information ColumnsPack sizeCode No. HiTrap rProtein A FF5 × 1 ml17-5079-01 HiTrap rProtein A FF2 × 1 ml17-5079-02 HiTrap rProtein A FF1 × 5 ml17-5080-01 HiTrap Protein A HP5 × 1 ml17-0402-01 HiTrap Protein A HP2 × 1 ml17-0402-03 HiTrap Protein A HP1 × 5 ml17-0403-01 HiTrap Protein G HP5 × 1 ml17-0404-01 HiTrap Protein G HP2 × 1 ml17-0404-03 HiTrap Protein G HP1 × 5 ml17-0405-01 HiTrap Blue HP5...

BACKGROUND Postnatal depression (PND) can be experienced by 13% of women who give birth, and such women often exhibit disabling symptoms, which can have a negative effect on the mother and infant relationship, with significant consequences in terms of the child's later capacity for affect regulation. Research has shown that providing support to mothers experiencing PND can help reduce their dep...

BACKGROUND Approximately 70,000 patients/year undergo surgery for repair of a fractured hip in the United Kingdom. This is associated with 30-day mortality of 9% and survivors have a considerable length of acute hospital stay postoperatively (median 26 days). Use of oesophageal Doppler monitoring to guide intra-operative fluid administration in hip fracture repair has previously been associated...

Fractional-N phase-locked loops (PLLs) are widely used to synthesize local oscillator signals for modulation and demodulation in communication systems. Such PLLs generate and subsequently lowpass filter DC-free quantization noise as part of their normal operation. Unfortunately, the quantization noise and its running sum inevitably are subjected to nonlinear distortion from analog circuit imper...