Cognitive reserve (CR) has been proposed as a latent variable that can account for the frequent discrepancy between an individual's underlying level of brain pathology and their observed clinical outcome. A possible behavioral manifestation of CR is best strategy choice. Older adults have been shown to choose sub-optimal strategies for performing various tasks. The present study attempted to in...

Although masting in Southeast Asia is characterized by the interspecific synchronization of reproduction, little known about variation regeneration strategies among sympatric tree species during major events. Herein, we examined hypothesis that non-abundant achieve greater seed survival per production at pre- and post-dispersal stages synchronizing reproduction with abundant species. During eve...

• Regeneration received little attention in coastal marsh restoration projects. Stress tolerance governs plant succession at extremely stressful conditions. Dispersal and juvenile competition determine benign Seed availability determines the relative importance of dispersal competition. deserves more restoration. In salt marshes, abiotic factors, interspecific or facilitation, herbivory have be...

background and objectives: seed vigour is the resultant of a broad range of physiological processes which have genetic background. the study of genetic variation, play an important role in enhancing the ability of breeders in selection and breeding operation. this study aimed to evaluate rice genotypes with the physiological and morphological characteristics related to seed vigour and grouping ...

objective: basal fsh levels reflect ovarian response and more formed embryos. we investigated a reliable fsh range to retrieve more oocytes and embryos. materials and methods: two hundred patients in art cycles underwent this study from apr 2007 to sep 2008. patients were divided in three groups based on value of fsh: group a≤8 iu/ml, 8 iu/ml < group b≤10 iu/ml, group c>10 iu/ml and results of ...

Abstract Regeneration of tropical forest occurs naturally and mainly through early secondary succession by soil seed banks. Here, we analyzed bank variation in density diversity along a degradation gradient. We also explored the relationship (similarity composition) between seedling banks overstory vegetation. The investigated forests were located at Dja Fauna Reserve its surroundings, south‐ea...

In a close parallel to the developmental pattern of alpha-amylase activity, a rapid increase of maltase activity occurred in the endosperm tissue of germinating rice seeds after about 4 days of the seed imbibition. The overall pattern of the 2 hydrolytic enzyme activities strongly suggest that amylolytic breakdown is the major metabolic route of starch utilization in the germinating rice seeds....

The amino acid sequences of the acidic and basic components of the A2B1a subunit of glycinin, the major seed reserve protein of the soybean (Glycine max L. Merr.), were determined. They contain 278 and 180 amino acids, respectively, and have molecular weights of 31,600 +/- 100 and 19,900 +/- 100. The molecular weight of the acidic component is considerably less than that estimated by sodium dod...

The formation of spatial genetic structure (SGS) may originate from different patterns of seed deposition in the landscape, and is mostly determined by seed dispersal limitation. After dispersal, mechanisms such as filtering by environmental factors or attack by herbivores/pathogens throughout plant development stages, and potentially either disrupt or intensify SGS patterns. We investigated ho...