Tsuyoshi Kashima

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Spinal muscular atrophy (SMA) is a relatively common neurodegenerative disease caused by homozygous loss of the survival motor neuron 1 (SMN1) gene. Humans possess a linked, nearly identical gene, SMN2, which produces a functional SMN protein but at levels insufficient to compensate for loss of SMN1 (refs. 1,2). A C/T transition at position +6 in exon 7 is(More)
—This paper proposes two new types of maximum a posteriori probability (MAP) receivers for multiple-input–mul-tiple-output and orthogonal frequency-division multiplexing mobile communications with a channel coding such as the low-density parity-check code. One proposed receiver employs the expectation-maximization algorithm so as to improve performance of(More)
The neurodegenerative disease spinal muscular atrophy is caused by mutation of the survival motor neuron 1 (SMN1) gene. SMN2 is a nearly identical copy of SMN1 that is unable to prevent disease, because most SMN2 transcripts lack exon 7 and thus produce a nonfunctional protein. A key cause of inefficient SMN2 exon 7 splicing is a single nucleotide(More)
We focus the security and privacy threats in radio interface between evolved Node B (eNB, " base station ") and User Equipment (UE). We identify new threats including several user tracking attacks by various information in MAC and RRC signalling messages, and an active attack with false buffer status reports. Finally, we propose a solution including(More)
Two putative human oligodendroglioma cell lines were examined for the expression of the oligodendrocyte-associated genes, T J'-cyclic nucleotide-3'-phosphodiesterase, myelin basic protein, myelin proteolipid proteins, and myelin-associated glycoprotein. The expression of these genes also was examined in control astrocytoma and neuroblastoma cell lines. In(More)
SUMMARY This paper proposes an iterative maximum a posteriori probability (MAP) receiver for multiple-input-multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) mobile communications. For exploiting the space, time, and frequency diversity, the low-density parity-check code (LDPC) is used as a channel coding with a built-in(More)
— This paper proposes novel channel estimation methods for an iterative maximum a posteriori (MAP) receiver. The targeted systems are low-density parity-check (LDPC)-coded multiple-input-multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) mobile communications. By reconsidering the joint processing of the iterative MAP receiver from(More)