A multistandard software-defined radio base station must perform non-uniform channelization of multiplexed frequency bands. Non-uniform channelization accounts for a significant portion of the digital signal processin...
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A multistandard software-defined radio base station must perform non-uniform channelization of multiplexed frequency bands. Non-uniform channelization accounts for a significant portion of the digital signal processing workload in the base station receiver and can be difficult to realize in a physical implementation. In non-uniform channelization methods based on generalized DFT filter banks, large prototype filter orders are a significant issue for implementation. In this paper, a multistage filter design is applied to two different non-uniform generalized DFT-based channelizers in order to reduce their filter orders. To evaluate the approach, a TETRA and TEDS base station is used. Experimental results show that the new multistage design reduces both the number of coefficients and operations and leads to a more feasible design and practical physical implementation.
Background:Recognizing sport-related concussion(SRC)is challenging and relies heavily on subjective symptom reports.An objective,biological marker could improve recognition and understanding of SRC.There is emerging e...
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Background:Recognizing sport-related concussion(SRC)is challenging and relies heavily on subjective symptom reports.An objective,biological marker could improve recognition and understanding of SRC.There is emerging evidence that salivary micro-ribonucleic acids(miRNAs)may serve as biomarkers of concussion;however,it remains unclear whether concussion-related miRNAs are impacted by exercise.We sought to determine whether40 miRNAs previously implicated in concussion pathophysiology were affected by participation in a variety of contact and non-contact sports.Our goal was to refine a miRNA-based tool capable of identifying athletes with SRC without the confounding effects of exercise.Methods:This case-control study harmonized data from concussed and non-concussed athletes recruited across 10 sites.Levels of salivary miRNAs within 455 samples from 314 individuals were measured with RNA sequencing.Within-subjects testing was used to identify and exclude miRNAs that changed with either(a)a single episode of exercise(166 samples from 83 individuals)or(b)season-long participation in contact sports(212 samples from 106 individuals).The miRNAs that were not impacted by exercise were interrogated for SRC diagnostic utility using logistic regression(172 samples from 75 concussed and 97 non-concussed individuals).Results:Two miRNAs(miR-532-5p and miR-182-5p)decreased(adjusted p0.50;adjusted p0.70)to identify concussion.A single ratio(miR-27a-5p/miR-30a-3p)displayed the
Some cultivars of pear(Pyrus L.)show attractive red fruit skin due to anthocyanin accumulation.This pigmentation can be affected by environmental conditions,especially light.To explore the light-induced regulation net...
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Some cultivars of pear(Pyrus L.)show attractive red fruit skin due to anthocyanin accumulation.This pigmentation can be affected by environmental conditions,especially light.To explore the light-induced regulation network for anthocyanin biosynthesis and fruit coloration in pear,small RNA libraries and mRNA libraries from fruit skins of‘Yunhongyihao’pear were constructed to compare the difference between bagging and debagging treatments.Analysis of RNA-seq of fruit skins with limited light(bagged)and exposed to light(debagged),showed that PyPIF5 was down-regulated after bag removal.PymiR156a was also differentially expressed between bagged and debagged fruit skins.We found that PyPIF5 negatively regulated PymiR156a expression in bagged fruits by directly binding to the G-box motif in its promoter.In addition,PymiR156a overexpression promoted anthocyanin accumulation in both pear skin and apple calli.We confirmed that PymiR156a mediated the cleavage of PySPL9,and that the target PySPL9 protein could form heterodimers with two key anthocyanin regulators(PyMYB114/PyMYB10).We proposed a new module of PyPIF5-PymiR156a-PySPL9-PyMYB114/MYB10.When the bagged fruits were re-exposed to light,PyPIF5 was down-regulated and its inhibitory effect on PymiR156a was weakened,which leads to degradation of the target PySPL,thus eliminating the blocking effect of PySPL on the formation of the regulatory MYB complexes.Ultimately,this promotes anthocyanin biosynthesis in pear skin.
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