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13
Efficient Encoding of Low-Density Parity-Check Codes
, 2001
"... Low-density parity-check (LDPC) codes can be considered serious competitors to turbo codes in terms of performance and complexity and they are based on a similar philosophy: constrained random code ensembles and iterative decoding algorithms. In this paper, we consider the encoding problem for LDPC ..."
Abstract
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Cited by 183 (3 self)
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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.
Under Contract to
, 1983
"... mmmhhhhhhhmhmu mEE|h|hhhE|hEE mE|hhhh|hhEEEE IIIIIIIIEEIhEE mEEEIhEEIhIhhE IIIEEIhEIhIIhE ..."
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mmmhhhhhhhmhmu mEE|h|hhhE|hEE mE|hhhh|hhEEEE IIIIIIIIEEIhEE mEEEIhEEIhIhhE IIIEEIhEIhIIhE
Original Article-Metabolism www.cmj.ac.kr Penile Growth in Response to Human Chorionic Gonadotropin (hCG) Treatment in Patients with Idiopathic Hypogonadotrophic
, 2011
"... Penile growth is under androgenic control. Human chorionic gonadotropin (hCG) has a stimulatory effect on testicular steroidogenesis and penile growth. The purpose of this study was to evaluate the effect of hCG treatment on the gonadal response and penile growth in male idiopathic hypogonadotrophic ..."
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<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
protein, which is homologous to the C-terminal region of the human ERCC1 protein, is involved in DNA binding and 5′-incision
, 1997
"... The incisions in the DNA at the 3′- and 5′-side of a DNA damage during nucleotide excision repair in Escherichia coli occur in a complex consisting of damaged DNA, UvrB and UvrC. The exact requirements for the two incision events, however, are different. It has previously been shown that the 3′-inci ..."
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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
Research Article A Network Investigation on Idiopathic Hypogonadotropic
, 2013
"... 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 and t ..."
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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
Mechanistic Assessment of DNA Ligase as an Antibacterial Target in Staphylococcus aureus
"... We report the use of a known pyridochromanone inhibitor with antibacterial activity to assess the validity of NAD-dependent DNA ligase (LigA) as an antibacterial target in Staphylococcus aureus. Potent inhibition of purified LigA was demonstrated in a DNA ligation assay (inhibition constant [Ki] 4. ..."
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.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
RESEARCH ARTICLE Ab Initio Coordination Chemistry for Nickel Chelation Motifs
"... Chelation therapy is one of the most appreciated methods in the treatment of metal induced disease predisposition. Coordination chemistry provides a way to understand metal associ-ation in biological structures. In this work we have implemented coordination chemistry to study nickel coordination due ..."
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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
1Compressive Demodulation of Mutually Interfering Signals
"... 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 im ..."
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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
Scenario Generation and Reduction for Long-term and Short-term Power System Generation Planning under Uncertainties
"... ii ..."
Subspace Communication
, 2014
"... 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 ..."
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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-
Results 1 - 10
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