Results 21 to 30 of about 366,445 (313)

The causes and consequences of seasonal variation in COPD exacerbations [PDF]

open access: yes, 2014
Gavin C Donaldson, Jadwiga A Wedzicha Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, UK Abstract: The time of year when patients experience exacerbations of chronic obstructive pulmonary disease is a much ...
Donaldson, G, Wedzicha, J
core   +2 more sources

Malaria seasonality and rainfall seasonality in Sri Lanka are correlated in space

open access: yesGeospatial Health, 2008
Correlation in space between seasonality of malaria and seasonality of rainfall was studied in Sri Lanka. A simple seasonality index was developed by making use of the bimodal seasonality of both malaria and rainfall.
Olivier J.T. Briët   +2 more
doaj   +1 more source

Orbital‐Insolation Controlled Porites Coral δ13C Seasonality Variations Since the Mid‐Holocene in the Northern South China Sea

open access: yesGeophysical Research Letters, 2023
Coral skeleton δ13C is a routinely measured indicator in modern insolation change research, but the knowledge of environmental and climatic signals recorded in its seasonality during geological time is sparse.
Hao Wang   +6 more
doaj   +1 more source

Changes in rainfall seasonality pattern over India

open access: yesMeteorological Applications, 2020
Rainfall seasonality over India is studied using an individual seasonality index. The spatial distribution of the individual seasonality index and the mean individual seasonality index over two periods, that is, early (1901–1970) and recent (1971–2015 ...
P. Rai, A. P. Dimri
doaj   +1 more source

Descriptive Seasonal Adjustment by Minimizing Perturbations [PDF]

open access: yes, 1982
The seasonal adjustment method proposed by Schlicht (1981) can be viewed as a method that minimizes non-stochastic deviations (perturbations). This interpretation gives rise to a critique of the seasonality criterion used there.
Pauly, Ralf, Schlicht, Ekkehart
core   +1 more source

Seasonal Sleep Variations and Their Association With Meteorological Factors: A Japanese Population Study Using Large-Scale Body Acceleration Data

open access: yesFrontiers in Digital Health, 2021
Seasonal changes in meteorological factors [e.g., ambient temperature (Ta), humidity, and sunlight] could significantly influence a person's sleep, possibly resulting in the seasonality of sleep properties (timing and quality).
Li Li   +4 more
doaj   +1 more source

Dates of birth and seasonal changes in well-being among 4904 subjects completing the seasonal pattern assessment questionnaire [PDF]

open access: yes, 2007
Background: Abnormal distributions of birthdates, suggesting intrauterine aetiological factors, have been found in several psychiatric disorders, including one study of out-patients with Seasonal Affective Disorder (S.A.D.).
Cameron, Isobel M.   +4 more
core   +1 more source

Deterministic seasonality versus seasonal fractional integration [PDF]

open access: yesJournal of Statistical Planning and Inference, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +6 more sources

A cross-sectional study of factors affecting seasonality in bipolar disorder

open access: yesSouth African Journal of Psychiatry, 2014
Background. Researchers have evinced interest in the effect of seasonal variations on mood and behavioural patterns in affective disorders.  Objective.
Pankaj Kumar Mittal   +4 more
doaj   +1 more source

Seasonality of the feeding behavior and condition factor of Anchovia surinamensis in the floodplains of the Madeira River (Rondônia, Brazil)*

open access: yesBoletim do Instituto de Pesca, 2022
The Anchovia surinamensis (Clupeiformes: Engraulidae) is known in Brazil as “sardinha-do-gato” and exists in the floodplains throughout Latin-America. It is highly appreciated by the Amazonian riverine communities as a source of animal protein.
Raniere Garcez Costa SOUSA   +3 more
doaj   +1 more source

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