quadratic in the block length. However, we show that the associated coefficient can be made quite small, so that encoding codes even of length IHH HHH is still quite practical. More importantly, we will show that “optimized” codes actually admit linear time encoding.

mmmhhhhhhhmhmu mEE|h|hhhE|hEE mE|hhhh|hhEEEE IIIIIIIIEEIhEE mEEEIhEEIhIhhE IIIEEIhEIhIIhE

<0.001). Mean testicular volumes increased significantly as well (left: from 5.45 cc to 6.83 cc; right: from 5.53 cc to 7.03 cc). There were no remarkable adverse effects of the hCG treatment. The hCG treatment increased the serum testosterone level, penile length, and testicular volume in IHH

affecting the 3′-incision. The C-terminal domain of UvrC is homologous with the C-terminal part of the ERCC1 protein which, in a complex with XPF, is responsible for the 5′-incision reaction in human nucleotide excision repair. Both in the UvrC and the ERCC1 domain a Helix–hairpin–Helix (HhH) motif can

which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Idiopathic hypogonadotropic hypogonadism (IHH) is a rare condition in which puberty does not take place naturally. We aimed to develop and follow an internet-based cohort

.0 nM) and in a DNA-independent enzyme adenylation assay using full-length LigA (50 % inhibitory concentration [IC50] 28 nM) or its isolated adenylation domain (IC50 36 nM). Antistaphylococcal ac-tivity was confirmed against methicillin-susceptible and-resistant S. aureus (MSSA andMRSA) strains (MIC

due to its high impact in industrial usage and thereby health con-sequences. This paper reports the analysis of nickel coordination from a large dataset of nickel bound structures and sequences. Coordination patterns predicted from the structures are reported in terms of donors, chelate length

Multi-User Detection is fundamental not only to cellular wireless communication but also to Radio-Frequency Identification (RFID) technology that supports supply chain management. The challenge of Multi-user Detection (MUD) is that of demodulating mutually interfering signals, and the two biggest impediments are the asynchronous character of random access and the lack of channel state information. Given that at any time instant the number of active users is typically small, the promise of Compressive Sensing (CS) is the demodulation of sparse superpositions of signature waveforms from very few measurements. This paper begins by unifying two front-end architectures proposed for MUD by showing that both lead to the same discrete signal model. Algorithms are presented for coherent and noncoherent detection that are based on iterative matching pursuit. Noncoherent detection is all that is needed in the application to RFID technology where it is only the identity of the active users that is required. The coherent detector is also able to recover the transmitted symbols. It is shown that compressive demodulation requires O(K logN(τ + 1)) samples to recover K active users whereas standard MUD requires N(τ +1) samples to process N total users with a maximal delay τ. Performance guarantees are derived for both coherent and noncoherent detection that are identical in the way they scale with number

Abstract not found

We are surrounded by electronic devices that take advantage of wireless technologies, from our computer mice, which require little amounts of information, to our cellphones, which demand increasingly higher data rates. Until today, the coexistence of such a variety of services has been guaranteed by a fixed assignment of spectrum resources by regulatory agencies. This has resulted into a blind alley, as current wireless spectrum has become an expensive and a scarce resource. However, recent measurements in dense areas paint a very different picture: there is an actual underutilization of the spectrum by legacy sys-tems. Cognitive radio exhibits a tremendous promise for increasing the spectral efficiency for future wireless systems. Ideally, new secondary users would have a perfect panorama of the spectrum usage, and would opportunistically communicate over the available re-sources without degrading the primary systems. Yet in practice, monitoring the spectrum resources, detecting available resources for opportunistic communication, and transmit-ting over the resources are hard tasks. This thesis addresses the tasks of monitoring, de-