54 research outputs found

    Advanced Conducting Project

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    Adoramus Te by Giovanni Pierluigi da Palestrina; edited by Brian Marble -- Plaudant Aetheri by Ignaz Holzbauer; edited by Martin Banner -- Kyrie (from Mass No. 6 in E-flat Major ) by Franz Schubert -- Cantique de Jean Racine by Gabriel Faure; edited by H. Zipper -- The Lamb by John Travener -- Russian Picnic by Harvey Enders -- N\u27kosi Sikelel\u27I Afrika by Enoch Mankayi Sontonga; transcribed, edited and annotated by Nick Page and Joseph Shabalala -- Lua, Lua, Lua by Esther Scliar; edited by Daniel Fufino Afonso, Jr. -- Ching-A-Ring-Chaw by Aaron Copland; arranged by Irving Fine

    Sleep in the Human Hippocampus: A Stereo-EEG Study

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    Background. There is compelling evidence indicating that sleep plays a crucial role in the consolidation of new declarative, hippocampus-dependent memories. Given the increasing interest in the spatiotemporal relationships between cortical and hippocampal activity during sleep, this study aimed to shed more light on the basic features of human sleep in the hippocampus. Methodology/Principal Findings. We recorded intracerebral stereo-EEG directly from the hippocampus and neocortical sites in five epileptic patients undergoing presurgical evaluations. The time course of classical EEG frequency bands during the first three NREM-REM sleep cycles of the night was evaluated. We found that delta power shows, also in the hippocampus, the progressive decrease across sleep cycles, indicating that a form of homeostatic regulation of delta activity is present also in this subcortical structure. Hippocampal sleep was also characterized by: i) a lower relative power in the slow oscillation range during NREM sleep compared to the scalp EEG; ii) a flattening of the time course of the very low frequencies (up to 1 Hz) across sleep cycles, with relatively high levels of power even during REM sleep; iii) a decrease of power in the beta band during REM sleep, at odds with the typical increase of power in the cortical recordings. Conclusions/Significance. Our data imply that cortical slow oscillation is attenuated in the hippocampal structures during NREM sleep. The most peculiar feature of hippocampal sleep is the increased synchronization of the EEG rhythms during REM periods. This state of resonanc

    The genome of the green anole lizard and a comparative analysis with birds and mammals

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    The evolution of the amniotic egg was one of the great evolutionary innovations in the history of life, freeing vertebrates from an obligatory connection to water and thus permitting the conquest of terrestrial environments. Among amniotes, genome sequences are available for mammals and birds, but not for non-avian reptiles. Here we report the genome sequence of the North American green anole lizard, Anolis carolinensis. We find that A. carolinensis microchromosomes are highly syntenic with chicken microchromosomes, yet do not exhibit the high GC and low repeat content that are characteristic of avian microchromosomes. Also, A. carolinensis mobile elements are very young and diverse—more so than in any other sequenced amniote genome. The GC content of this lizard genome is also unusual in its homogeneity, unlike the regionally variable GC content found in mammals and birds. We describe and assign sequence to the previously unknown A. carolinensis X chromosome. Comparative gene analysis shows that amniote egg proteins have evolved significantly more rapidly than other proteins. An anole phylogeny resolves basal branches to illuminate the history of their repeated adaptive radiations.National Science Foundation (U.S.) (NSF grant DEB-0920892)National Science Foundation (U.S.) (NSF grant DEB-0844624)National Human Genome Research Institute (U.S.

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    A new species of Anolis lizard (Squamata, Iguania) from Panama

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    A new species of Anolis is described from western Panama and eastern Costa Rica. Populations of the new form were previously allocated to A. chocorum. However, the new species differs from A. chocorum in characters of color pattern, scalation and proportion

    Automatic Discovery of Sub-molecular Sequence Domains in Multi-aligned Sequences: A Dynamic Programming Algorithm for Multiple Alignment Segmentation

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    this paper was obtained from Ribosomal Database Project (RDP, release 7.0) (Maidak et al., 1999) by choosing a subset of 417 sequences out of the complete multi-alignment of 2055 eukaryotic small subunit 16S ribosomal RNA sequences (in order to facilitate comparison with a smaller earlier release). The &&sub-alignment" is 6197 base-pair long. The rRNA multi-alignment provided by RDP is achieved by a joint e!ort of computer optimization and manual validation /modi"catio

    [Ag<sub>2</sub>M(Te<sub>2</sub>O<sub>5</sub>)<sub>2</sub>]SO<sub>4</sub> (M = Ce<sup>IV</sup> or Th<sup>IV</sup>): A New Purely Inorganic d/f-Heterometallic Cationic Material

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    Two new isotypic d/f-heterometallic purely inorganic cationic materials, [Ag<sub>2</sub>M­(Te<sub>2</sub>O<sub>5</sub>)<sub>2</sub>]­SO<sub>4</sub> (M = Ce<sup>IV</sup> or Th<sup>IV</sup>), were synthesized using the metal oxides (MO<sub>2</sub> and TeO<sub>2</sub>), silver nitrate, and sulfuric acid under mild hydrothermal conditions. The prepared materials were characterized via single-crystal X-ray diffraction, which revealed that the materials possess a 3D framework of corner-sharing Te<sub>2</sub>O<sub>5</sub><sup>2–</sup> units. The tellurite framework creates four unique pores, three of which are occupied by the M<sup>IV</sup> and Ag<sup>I</sup> metal centers. The tellurite network, metal coordination, and total charge yield a cationic framework, which is charge-balanced by electrostatically bound sulfate anions residing in the largest of the four framework pores. These materials also possess Ag<sup>I</sup> in a ligand-imposed linear geometry
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