The expressions of chloroplast and mitochondria genes are tightly controlled by numerous nuclear-encoded proteins, mainly at the post-transcriptional level. Recent analyses have identified a large, plant-specific family of pentatricopeptide repeat (PPR) motif-containing proteins that are exclusively involved in RNA metabolism of organelle genes via sequence-specific RNA binding. A tandem array ...

PURPOSE Photosensitivity, or photoparoxysmal response (PPR), is an abnormal EEG reaction to intermittent photic stimulation (IPS), consisting of spikes, spike-waves, and intermittent slow waves. Depending on the spread of the abnormal activity, PPR subgroups have been defined as having either propagating PPR or localized, occipital spikes (OS) only. Recent research suggests an enhanced excitabi...

Mitochondrial-nuclear incompatibility has a major role in reproductive isolation between species. However, the underlying mechanism and driving force of mitochondrial-nuclear incompatibility remain elusive. Here, we report a pentatricopeptide repeat-containing (PPR) protein, Ccm1, and its interacting partner, 15S rRNA, to be involved in hybrid incompatibility between two yeast species, Saccharo...

BACKGROUND AND PURPOSE Ethnic disparities in readmission after stroke have been inadequately studied. We sought to compare potentially preventable readmissions (PPR) among a multiethnic population in Hawaii. METHODS Hospitalization data in Hawaii from 2007 to 2012 were assessed to compare ethnic differences in 30-day PPR after stroke-related hospitalizations. Multivariable models using logist...

Peste Des Petits Ruminants (PPR) caused by Peste Des Petits Ruminant Virus (PPRV) was considered as the most important viralv disease in small ruminants, which had high morbidity and mortality [1]. In 2007, the first wave PPR outbreak occurred in Tibet, China [2]. In the past three years (January 2011-November 2013), no PPR cases were reported in Tibet or elsewhere in China [3]. However, in the...

This study analyzed a specific indicator condition, congestive heart failure (CHF), to see if there is evidence that physician payment reform (PPR) has had an effect on access to care for Medicare beneficiaries. If there was a decrease in access to ambulatory care services associated with PPR, one would expect to see an increase in hospitalizations for CHF in the period after PPR was implemente...

The main objective of this paper is to investigate the distribution Andrews-Garvan-Dyson cranks partitions. Let M(m,n) denote number partitions n with crank m, we show that sequence {M(m,n)}|m|≤n−1 unimodal for n≥44. It turns out unimodality related monotonicity properties two partition functions pr(n) and ppr(n). parts taken from {2,3,…,r} let ppr(n) pairs (α,β) partitions, where α a counted b...

Nucleus-encoded ribonucleases and RNA-binding proteins influence chloroplast gene expression through their roles in RNA maturation and stability. One mechanism for mRNA 5' end maturation posits that sequence-specific pentatricopeptide repeat (PPR) proteins define termini by blocking the 5'→3' exonucleolytic activity of ribonuclease J (RNase J). To test this hypothesis in vivo, virus-induced gen...

Received February 28, 2008. Accepted for publication October 2, 2008. See editorial on pages 113-6 Introduction and objectives: Poor response to antiplatelet therapy has been associated with adverse long-term outcomes. The objective of this study is to assess the relationship between response to clopidogrel and post-treatment platelet reactivity (PPR) and 1-year major adverse cardiovascular eve...

purpose: to study the validity and reliability of subjective refraction, predicted phoropter refraction (ppr) measured by zywave aberrometer, and final surgical plan applied for laser vision correction. methods: this prospective study was conducted on 94 myopic or myopic astigmatic eyes (48 patients) who were candidates for refractive surgery in negah eye hospital from april 2012 to july 2012. ...