Results 131 to 140 of about 13,456,150 (364)

Istituzioni ritmiche e fine del tempo. "Modo" e "neuma" nel canto gregoriano e in Olivier Messiaen

open access: yesDoctor Virtualis, 2011
Prendendo le mosse dall’esame del ciclo pianistico Quatre études de rythme, di Olivier Messiaen (e in particolare del terzo brano, Neumes rythmiques), scritto fra il 1949 e il 1950, l’articolo delinea un sintetico confronto fra due differenti espressioni
Marco Mazzolini
doaj   +1 more source

Cohort postponement and period measures [PDF]

open access: yes
We introduce a new class of models in which demographic behavior such as fertility is postponed by differing amounts depending only on cohort membership. We show how this model fits into a general framework of period and cohort postponement that includes
Joshua R. Goldstein, Thomas Cassidy
core  

A conceptual diagram for the risk-period-cohort (RPC) model using the hierarchical APC (HAPC) framework.

open access: yes, 2019
Structural diagram of the HAPC model using RPC analyses (not including a quadratic risk effect on the outcome). This diagram is adapted similarly from work by Bell and Jones (2014)[9].
Jintao Liu (2579539)   +5 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Immanenza e trascendenza: Dal Pra, il medioevo e il problema di Dio

open access: yesDoctor Virtualis, 2008
La discussione delle grandi narrazioni storiografiche del pensiero medievale. Il definirsi di una prospettiva teorica e di una storiografica attraverso il confronto con Scoto Eriugena. La ricerca di un senso e il problema di Dio.
Alice De Fortunato, Marco Rossini
doaj   +1 more source

Adult Circadian behavior in Drosophila requires developmental expression of cycle, but not period

open access: yes, 2011
Circadian clocks have evolved as internal time keeping mechanisms that allow anticipation of daily environmental changes and organization of a daily program of physiological and behavioral rhythms.
Bonilla Gloribel   +21 more
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

A Period Detector For Pseudo-Periodic Signals

open access: yes, 1998
Publication in the conference proceedings of EUSIPCO, Rhodes, Greece ...
openaire   +3 more sources

On the relationship between period and cohort mortality [PDF]

open access: yes
In this paper I explore the formal relationship between period and cohort mortality, focusing on a comparison of measures of mean lifespan. I consider not only the usual measures (life expectancy at birth for time periods and birth cohorts) but also some
John R. Wilmoth
core  

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