Should executive control, as indicated by working memory capacity (WMC) and mind-wandering propensity, help or hinder creativity? Sustained and focused attention should help guide a selective search of solution-relevant information in memory and help inhibit uncreative, yet accessible, ideas. However, unfocused attention and daydreaming should allow mental access to more loosely relevant concep...

Our researches have been made on brown forest soil that had been used in long-term experiments set up according to specified fertilization system for over 30 years. We have chosen those experiment variants in which quantities of nitrogen fertilizers were gradually increased. The soil samples taken from 0 cm to 30 cm depth were used to determine biological indexes of nitrogen availability (aerob...

ABSTRACT: The objectives of this study were to assess the effects i) pre-incubation storage time Pekin duck eggs on incubation parameters and ii) different levels in ovo injection with maltodextrin duckling weight. was divided into two experiments using hatching Cherry Valley SM2 hens egg-laying ages between 31 40 weeks. In experiment I, 8,820 subjected periods (one-seven days). For II, 120 wei...

The interaction between simian virus 40(SV40)-induced endocytotic vacuoles and the nuclear membrane was investigated using cationized ferritin (CF) and concanavalin A (Con A) as cell membrane markers. These markers bound to the cell surfaces of CV-1 cells together with SV40 at 4 degrees C. Following incubation of these modified cells at 37 degrees C in serum-free medium, the cell membranes show...

Both soil organic matter and sulfur (S) can reduce or even suppress mercury (Hg) mobility and bioavailability in soil. A batch incubation experiment was conducted with a Chernozem and a Luvisol artificially contaminated by 440 mg · kg(-1) Hg showing wide differences in their physicochemical properties and available nutrients. The individual treatments were (i) digestate from the anaerobic ferme...

Identifying the relative contributions of genetic, maternal, and environmental factors to phenotypic variation is critical for evaluating the evolutionary potential of fitness-related traits. We employed a novel two-step cross-fostering experiment to quantify the relative contributions of clutch (i.e., maternal identity) and maternally chosen nest sites to phenotypic variation during three earl...

Two experiments were carried out to examine the interaction of egg storage period, egg position during storage, and turning frequency during subsequent incubation on fertile hatchability and embryonic mortality of broiler hatching eggs. Broiler hatching eggs from breeder flocks at 62 and 60 wk of age were stored for either 3 or 14 d at 18 degrees C and 75% RH in either the normal large end up o...

Arid and semi-arid soils are low in organic matter have poor fertility, making them a serious threat to crop production. Most amendments, such as residues farmyard manure, short lived because of rapid decomposition. Incubation pot studies were conducted assess the impact wheat straw biochar (produced at 350 °C) on temporal changes soil microbial biomass fertility status evaluate efficacy for ma...

During the course of an investigation on the cultural conditions affecting production of amylase by Bacillus macerans, it was observed that aeration resulted in an increase in amylase yields and in an appreciable decrease in the time of incubation necessary for its production. A 5 per cent rolled oats medium buffered with 2 per cent calcium carbonate, recommended as most suitable for amvlase pr...

The consensus for mechanisms controlling soil organic matter (SOM) persistence has shifted from traditional views based on SOM recalcitrance to a new paradigm stabilization controlled by minerals and aggregates. Recent studies indicate that the origin, composition molecular diversity of are crucial decomposition SOM. However, it is not fully understood how at level. objectives this study were i...