Results 11 to 20 of about 1,716,518 (288)

Three stage period analysis and complementary methods [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 1999
We generalize the multistage period search and analysis method for the case when the data error esti- mates (i.e. statistical weights) are available. Adjustment of model parameters allows us to detect complex wave forms in noisy data. Complementary statistical tests are also presented to estimate the significance of the detected periodicities, to ...
L. Jetsu, J. Pelt
openaire   +1 more source

EXERCISE PRESCRIPTION FOR STAGES OF PREGNANCY AND POSTPARTUM PERIOD

open access: yesJournal of Education and Recreation Patterns, 2021
Exercise is a component of physical activity done with the intention of getting physically fit to carry out daily activities without undue stress. Habitual participation in exercise is beneficial to all categories of people, including pregnant women.
Alayode Michael Ajibua   +3 more
openaire   +1 more source

Otimização no planejamento agregado de produção em indústrias de processamento de suco concentrado congelado de laranja Optimization in the aggregate production planning in frozen concentrated orange juice processing industry

open access: yesGestão & Produção, 2010
Neste trabalho apresentam-se modelos de programação linear e programação por metas para apoiar decisões no processo de planejamento agregado da produção de suco concentrado congelado de laranja, com múltiplos produtos, estágios e períodos.
José Renato Munhoz, Reinaldo Morabito
doaj   +1 more source

PERIOD OF YAZ-II: STAGES AND CHRONOLOGY

open access: yesVESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII, 2016
The archaeological site of Yaz depe was excavated over 50 years ago by V.M. Masson, and has been a reference point for the Iron Age — Yaz-I, Yaz-II and Yaz-III — in Central Asia since then. At that time it was dated to the middle of the 2nd to the beginning of the 1st Millennium BC In the early 1970s monuments of this period were discovered near the ...
Sverchkov L.M., Boroffka N.
openaire   +2 more sources

Nitrogen migration paths and source areas at different snowmelt periods in a seasonal freezing agricultural watershed

open access: yesJournal of Hydrology: Regional Studies, 2022
Study region: Heidingzi, a typical seasonal freezing agricultural watershed in northeastern China. Study focus: This study’s objectives were to: (1) confirm whether nitrogen source areas and migration paths have changed with the melting of snow and ...
Qiang Zhao   +7 more
doaj   +1 more source

Cosmic evolution during primordial black hole evaporation [PDF]

open access: yes, 1998
Primordial black holes with a narrow mass range are regarded as a nonrelativistic fluid component with an equation of state for dust. The impact of the black hole evaporation on the dynamics of the early universe is studied by resorting to a two-fluid ...
Pavón, Diego, Zimdahl, Winfried
core   +2 more sources

Investigation of Superhumps in SU UMa-type Dwarf Novae Based on the Observations of TESS

open access: yesThe Astrophysical Journal, 2023
We report a superhumps analysis of seven SU UMa-type dwarf novae based on observations made by the Transiting Exoplanet Survey Satellite (TESS). Superhumps are seen during the superoutbursts of SU UMa-type dwarf novae. The monthlong data sets of TESS are
Wei Liu, Shengbang Qian
doaj   +1 more source

Life History and Laboratory Rearing of \u3ci\u3eCorythucha Juglandis\u3c/i\u3e (Hemiptera: Tingidae) With Descriptions of Immature Stages [PDF]

open access: yes, 2017
The life history of Corythucha juglandis was investigated in Jackson and Alexander counties. Illinois. August 1981-December 1985 and the immature stages were described.
McPherson, J. E, Vogt, T. E
core   +2 more sources

Critical stages in the individual development of introduced plants

open access: yesІнтродукція Рослин, 2017
The historical aspects of studying the stages of individual plant development are considered. The regularities of the change in the stages of ontogeny are discussed.
P.E. Bulakh, E.N. Elpitiforov
doaj   +1 more source

Changes in duodenal and nephritic Ca and P absorption in hens during different egg-laying periods

open access: yesHeliyon, 2021
Ca and P metabolic disorders during the egg-laying period can reduce egg production, impair eggshell quality, and even cause bone problems in hens; however, little is known regarding the capacity of duodenal and nephritic Ca and P absorption.
Jishuang San   +6 more
doaj   +1 more source

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