334,163 research outputs found
Dva dny s didaktikou matematiky
No full textČlánek informuje o 25. ročníku konference Dva dny s didaktikou matematiky, která je každoročně pořádána PedF UK v Praze ve spolupráci s SUMA JČMF
Dva dny s didaktikou matematiky 2019
No full textPříspěvek informuje o konferenci Dva dny s didaktikou matematiky, která je každoročně pořádána PedF UK v Praze ve spolupráci s SUMA JČMF
Dva dny s didaktikou matematiky 2020
No full textČlánek informuje o 24. ročníku konference Dva dny s didaktikou matematiky, která je každoročně pořádána PedF UK v Praze ve spolupráci s SUMA JČMF
How to fold intricately: using theory and experiments to unravel the properties of knotted proteins
No full textOver the years, advances in experimental and computational methods have helped us to understand the role of thermodynamic, kinetic and active (chaperone-aided) effects in coordinating the folding steps required to achieving a knotted native state. Here, we review such developments by paying particular attention to the complementarity of experimental and computational studies. Key open issues that could be tackled with either or both approaches are finally pointed out
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No full textInvestigación sobre el descubrimiento producido el S XVIII de la teoría del reparto de la apuesta o del juego interrumpido. El artículo realiza un recorrido por los diferentes matemáticos y las hipótesis que proponían para intentar resolverlo.ES
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No full textDocumento elaborado en el Seminario convocado por la Federación Española de Sociedades de Profesores de Matemáticas. La finalidad del seminario está contemplada en su título. Ante los nuevos bachilleratos y ante los nuevos planes de los estudios universitarios, parece conveniente que exista una cierta coordinación entre ambos niveles.ES
How to fold intricately: using theory and experiments to unravel the properties of knotted proteins.
No full textOver the years, advances in experimental and computational methods have helped us to understand the role of thermodynamic, kinetic and active (chaperone-aided) effects in coordinating the folding steps required to achieving a knotted native state. Here, we review such developments by paying particular attention to the complementarity of experimental and computational studies. Key open issues that could be tackled with either or both approaches are finally pointed out
Beta-ionone increases catches of Lasioderma serricorne (F.) (Coleoptera: Anobiidae) in traps baited with sex pheromone
No full textThe cigarette beetle, Lasioderma serricorne (F.) (Coleoptera: Anobiidae), is an important stored product pest increasingly impacting museums and herbaria. Monitoring methods make use of pheromone traps which can be implemented using chili fruit powder as food attractant. Further laboratory studies evidenced that the main cues involved in this attraction are the terpenoids alpha-ionone and beta-ionone. In this study a trap bioassay was carried out in a bread plant with pheromone traps added with alpha-ionone or beta-ionone at different doses to evaluate the possible enhance of captures determined by such odorants in comparison with traps loaded with the synthetic pheromone alone. Furthermore, in order to optimize the type of device used, the chemical that elicited the highest performance was tested using two types of dispenser: a polyethylene and a silicone one. The results indicated that pheromone traps with the addition of beta-ionone at the dose of 10 mg captured the highest amount of L. serricorne adults and significantly more than traps loaded with pheromone alone or with pheromone plus alpha-ionone. Differently, captures of pheromone traps supplemented with alpha-ionone didn't differ statistically from those baited solely with the synthetic pheromone. Moreover, the traps baited with beta-ionone loaded in polyethylene dispenser allowed a higher number of catches of the adults of the beetle in comparison with those obtained using silicone dispenser. Data indicate that this co-attractant can be exploited to increase sensitivity for monitoring, and/or for mass trapping L. serricorne adults
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