Results 11 to 20 of about 5,773,820 (177)

Growth of sterlet Acipenser ruthenus under experimental and farm conditions of the Czech Republic, with remarks on other sturgeons

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
Growth rate of sterlet (Acipenser ruthenus) juveniles and adults was studied and compared with other sturgeon species under experimental and farm conditions in the Czech Republic.
Miroslav Prokeš   +4 more
doaj   +1 more source

Scale Factor Duality and the Energy Condition Inequalities [PDF]

open access: yes, 1996
We demonstrate, by a simple analysis, that cosmological line elements related by scale factor duality also exhibit a duality with respect to the conservation/violation of the Weak Energy Condition (WEC) by the matter that acts as the source in the one ...
Antoniadis   +35 more
core   +2 more sources

Anchovy (Engraulis encrasicolus) otoliths reveal growth differences between two areas of the Spanish Mediterranean Sea

open access: yesScientia Marina, 2017
Anchovy is a commercial species that supports large fisheries in the Mediterranean Sea. In addition, anchovy is an essential element of the pelagic food web, playing a considerable role in connecting the lower and upper trophic levels.
Ana Ventero   +2 more
doaj   +1 more source

Population structure, condition factor and reproductive period of Astyanax paranae (Eigenmann, 1914) (Osteichthyes: Characidae) in a small and old Brazilian Reservoir

open access: yesBrazilian Archives of Biology and Technology, 2008
The population structure, condition and reproductive period of Astyanax paranae adult individuals inhabiting a small reservoir were investigated. The fishes were quarterly captured from the riverine and lacustrine zones of the Alagados Reservoir, Paraná,
Milza Celi Fedatto Abelha   +1 more
doaj   +1 more source

Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations [PDF]

open access: yes, 2006
This study presents a historical review, a meta-analysis, and recommendations for users about weight–length relationships, condition factors and relative weight equations. The historical review traces the developments of the respective concepts. The meta-
Bagenal T.B.   +31 more
core   +1 more source

Examples of factors which have no Cartan subalgebras [PDF]

open access: yes, 2014
We consider some conditions similar to Ozawa's condition (AO), and prove that if a non-injective factor satisfies such a condition and has the W*CBAP, then it has no Cartan subalgebras.
Isono, Yusuke
core   +3 more sources

Conditional Risk Factors for Atherosclerosis [PDF]

open access: yesMayo Clinic Proceedings, 2005
Although most patients who experience a coronary heart disease (CHD) event have one or more of the conventional risk factors for atherosclerosis, so do many people who have not yet experienced such an event. Therefore, predictive models based on conventional risk factors have a lower than desired accuracy, providing a stimulus to search for new tools ...
Iftikhar J, Kullo   +1 more
openaire   +2 more sources

Factor Price Equalization : Geometrical Conditions [PDF]

open access: yes, 1998
This paper presents a geometrical approach to the univalence problem for a system of cost functions. We present a natural (almost tautological) extension of a geometrical theorem due to McKenzie: our sufficient condition is related to the non ...
Fujimoto, Takao, Ranade, Ravindra R.
core   +1 more source

Morphological observations, length-weight relationships, and condition factors of the Whipfin fish, Gerres filamentosus (Cuvier, 1829) in the Hurghada Red Sea, Egypt. [PDF]

open access: yesJournal of Bioscience and Applied Research, 2016
During the period from January 2010 to December 2010, the biometric studies of 669 (both sexes- 12:39 centimeters) the whipfin, silver biddy, Gerres filamentosus (Cuvier,1829) have been described to clarify the identity of the fish population in the ...
Taher M. Abu El-Nasr
doaj   +1 more source

Belief Propagation on replica symmetric random factor graph models [PDF]

open access: yes, 2016
According to physics predictions, the free energy of random factor graph models that satisfy a certain "static replica symmetry" condition can be calculated via the Belief Propagation message passing scheme [Krzakala et al., PNAS 2007].
Coja-Oghlan, Amin, Perkins, Will
core   +4 more sources

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