The crystal structure of the duplex formed by oligo(2',3'-dideoxy-beta-d-glucopyranosyl)nucleotides (homo-DNA) revealed strongly inclined backbone and base-pair axes [Egli,M., Pallan,P.S., Pattanayek,R., Wilds,C.J., Lubini,P., Minasov,G., Dobler,M., Leumann,C.J. and Eschenmoser,A. (2006) Crystal structure of homo-DNA and nature's choice of pentose over hexose in the genetic system. J. Am. Chem....

Music boundary detection is a fundamental step of music analysis and summarization. Existing works either use unsupervised or supervised methods to detect boundary. In this paper, we propose an integrated approach that takes advantage of both methodologies. In particular, a graph-theoretic approach is proposed to fuse the results of an unsupervised model and a supervised one by the knowledge of...

Photosynthesis is the basic process influencing crop productivity. It can be inhibited by drought. Seven sour cherry genotypes were challenged by drought to assess their photosynthetic efficiency in such conditions. All together with relative water content (RWC) as indicator of plant water status, maximum quantum yield of photosystem II (Fv/Fm) and chlorophyll content (Chl a+b) differentiated i...

This paper proposes a method for the automatic transcription of singing melodies in polyphonic music. The method is based on multiple-F0 estimation followed by acoustic and musicological modeling. The acoustic model consists of separate models for singing notes and for no-melody segments. The musicological model uses key estimation and note bigrams to determine the transition probabilities betw...

Aluminum (Al)-induced decrease in leaf hydration has been associated with low gas exchange, especially stomatal conductance (gs). However, the mechanisms explaining these responses are unclear. Citrus limonia was exposed to 0 and 1480 μM Al nutrient solution for 90 days test whether gs plants is increased 9-cis-epoxycarotenoid dioxygenase (NCED) gene expression abscisic acid (ABA) biosynthesis....

Dipteryx alata Vogel (Fabaceae) is a fruit tree species native to the Cerrado with ecological and economic potential. However, water deficit can be limiting factor initial growth of this species, requiring knowledge on technologies that alleviate stressful effect. We hypothesized inoculation arbuscular mycorrhizae fungi contributes stress mitigation during after deficit. D. seedlings were subje...

Although the blue light photoreceptors cryptochromes mediate expression of genes related to reactive oxygen species, whether cryptochrome 1a (cry1a) regulates local and long-distance signaling water deficit in tomato (Solanum lycopersicum L.) is unknown. Thus cry1a mutant its wild-type (WT) were reciprocally grafted (WT/WT; cry1a/cry1a; WT/cry1a; cry1a/WT; as scion/rootstock) or grown on their ...

controlling is a very important function of every manager. controlling is based and closely related to planning or the first function of management. these two functions are so related to each other that may be viewed as the blades of a pair of scissors. the scissors can not work unless there are two blades. without plans, control is not possible. theoretically, the concept of concept of control...