Results 21 to 30 of about 1,752,783 (198)
Polyandrous females avoid costs of inbreeding [PDF]
, 2002 Why do females typically mate with more than one male? Female mating patterns have broad implications for sexual selection, speciation and conflicts of interest between the sexes, and yet they are poorly understood. Matings inevitably have costs, and for
A Keil +31 more
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Química Nova, 2007 Ilex paraguariensis A. St. -Hil. is a native species of southern South America. The caffeine content in Ilex paraguariensis leaves has been considered an important quality parameter for maté-derived products. In this work different extraction methods for
Simone C. B. Gnoatto +3 more
doaj +1 more source
Voice pitch preferences of adolescents: Do changes across time indicate a shift towards potentially adaptive adult-like preferences? [PDF]
, 2013 An evolutionary approach to attractiveness judgments emphasises that many human trait preferences exist in order to assist adaptive mate choice. Here we test an adaptive development hypothesis, whereby voice pitch preferences indicating potential mate ...
DeBruine, Lisa +4 more
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Molecules, 2012 A simple and rapid HPLC method for determination of chlorogenic acid (5-O-caffeoylquinic acid) in mate tea extracts was developed and validated. The chromatography used isocratic elution with a mobile phase of aqueous 1.5% acetic acid-methanol (85:15, v ...
Jelena Vladic +4 more
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Carp Breeding in the Carpathian Basin with a Sustainable Utilization of Renewable Natural Resources
Life, 2022 In the Central European region, there is a long tradition of breeding fish in artificially constructed ponds. As the area belongs to the temperate zone, farmed fish need to survive cold winter periods.
Laszló Horváth +6 more
doaj +1 more source
Education Sciences, 2022 Learning motivation, self-handicapping, executive function, and school achievement are interrelated variables affecting students’ intension of learning in higher education.
Gabriella Józsa +3 more
doaj +1 more source
On the size of planarly connected crossing graphs [PDF]
, 2016 We prove that if an $n$-vertex graph $G$ can be drawn in the plane such that each pair of crossing edges is independent and there is a crossing-free edge that connects their endpoints, then $G$ has $O(n)$ edges.
Ackerman, Eyal +2 more
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Stalemate and 'DTS' depth to stalemate endgame tables [PDF]
, 2020 Stalemating the opponent in chess has given rise to various opinions as to the nature of that result and the reward it should properly receive. Here, following Lasker and Reti, we propose that ‘stalemate’ is a secondary goal, superior to a draw by ...
Haworth, Guy, Müller, Karsten
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Description of the Mate Industrial Agglomerate of the Alto Vale Taquari, Rio Grande do Sul, Brazil
Floresta e AmbienteThe mate (Ilex paraguariensis) market of Rio Grande do Sul has experienced the structuring of a productive chain of mate, from the implantation of the herbs, through industrialization, until they reach the final consumer.
Henrique Piton Greff +2 more
doaj +1 more source
Revista Árvore, 2004 O presente trabalho teve por objetivo comparar a eficiência do látice em relação aos delineamentos em blocos casualizados (DBC) e inteiramente casualizados (DIC) quanto aos caracteres altura e produção de massa verde em erva-mate (Ilex paraguariensis A ...
José Sebastião Cunha Fernandes +3 more
doaj +1 more source