Results 11 to 20 of about 533,258 (299)

Seasonal Changes in Pinus tabuliformis Root-Associated Fungal Microbiota Drive N and P Cycling in Terrestrial Ecosystem

open access: yesFrontiers in Microbiology, 2021
In terrestrial ecosystems, mycorrhizal roots play a key role in the cycling of soil carbon (C) and other nutrients. The impact of environmental factors on the mycorrhizal fungal community has been well studied; however, the seasonal variations in the ...
Hai-Hua Wang   +10 more
doaj   +1 more source

Advancing understanding of oat phenology for crop adaptation

open access: yesFrontiers in Plant Science, 2022
Oat (Avena sativa) is an annual cereal grown for forage, fodder and grain. Seasonal flowering behaviour, or phenology, is a key contributor to the success of oat as a crop. As a species, oat is a vernalization-responsive long-day plant that flowers after
Ben Trevaskis   +7 more
doaj   +1 more source

Quality of life: Seasonal fluctuation in Parkinson's disease

open access: yesFrontiers in Neurology, 2023
ObjectiveAlthough the seasonal variation of motor and non-motor symptoms in Parkinson's disease (PD) has been reported, the association between seasonal change and quality of life in patients with Parkinson's disease remains to be explored.MethodsWe ...
Lei Wu   +8 more
doaj   +1 more source

On the Role of Seasonal Intercepts in Seasonal Cointegration [PDF]

open access: yesOxford Bulletin of Economics and Statistics, 1999
In the paper we consider the role of seasonal intercepts in seasonal cointegration analysis. For the nonseasonal unit root, such intercepts can generate a stochastic trend with a drift common to all observations. For the seasonal unit roots, however, we show that unrestricted seasonal intercepts generate trends that are different across the seasons ...
Franses, Philip Hans, Kunst, Robert M.
openaire   +6 more sources

Reference evapotranspiration estimates by means of Hargreaves-samani and Penman-monteith fao methods with missing data in the northwestern Mato Grosso do Sul

open access: yesBioscience Journal, 2017
We aimed to assess the performance of different methodologies to estimate the reference evapotranspiration (ET0) in different seasons for at 1, 3, 6 and 10 days for the Northwestern Mato Grosso do Sul.
Fernando França da Cunha   +3 more
doaj   +1 more source

Resurrecting FUS: Adrenal Androgens as an Ultimate Cause of Hematuria, Periuria, Pollakuria, Stranguria, Urolithiasis and Obstruction in Neutered Cats

open access: yesFrontiers in Veterinary Science, 2018
Although many authors have doubted that “feline urological syndrome” (FUS) describes a real pathogenetic entity, because it subsumes such a large variety of signs, Sumner's recent finding that urethral obstruction occurs most frequently in springtime ...
Brandon P. Reines   +2 more
doaj   +1 more source

SEASONALITY OF BIRTHS IS ASSOCIATED WITH SEASONALITY OF MARRIAGES IN MALTA [PDF]

open access: yesJournal of Biosocial Science, 2002
This study was carried out to quantify secular trends in seasonal variation in births in Malta, a small Mediterranean country where the vast proportion of births occur in wedlock due to a predominantly Roman Catholic population. It also related such variations to seasonal variation in marriages.
Grech, Victor E.   +3 more
openaire   +3 more sources

The Effect of Seasons on Gill Net Selectivity

open access: yesAquatic Sciences and Engineering, 2019
In this study, the aim was to investigate the seasonal variations in the selectivity of striped red mullet (Mullus surmuletus L., 1758) captured by gill nets during the year in the north Aegean Sea.
Adnan Ayaz   +3 more
doaj   +1 more source

Seasonal integration and the evolving seasonals model

open access: yesInternational Journal of Forecasting, 1997
In this paper it is argued that describing seasonal patterns as an evolving seasonals model in which the coefficients attached to seasonal trigonometric terms follow simple autoregressive processes can be very useful when one is faced with the task of extending well known results obtained for non-seasonal time series to the seasonal case.
Hylleberg, Svend, Pagan, Adrian R.
openaire   +3 more sources

Diet and nutritional status among children 24–59 months by seasons in a mountainous area of Northern Vietnam in 2012 [PDF]

open access: yesGlobal Health Action, 2014
Background: Seasonal variation affects food availability. However, it is not clear if it affects dietary intake and nutritional status of children in Vietnam. Objectives: This paper aims at examining the seasonal variation in nutrition status and dietary
Le Thi Huong   +4 more
doaj   +1 more source

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