Open and globular star clusters have served as benchmarks for the study of stellar evolution owing to their supposed nature as simple stellar populations of the same age and metallicity. After a brief review of some of the pioneering work that established the importance of imaging stars in these systems, we focus on several recent studies that have challenged our fundamental picture of star clu...

1,2-Dichloropropane (1,2-D), a widespread groundwater contaminant, can be reductively dechlorinated to propene by anaerobic bacteria. To shed light on the populations involved in the detoxification process, a comprehensive 16S rRNA gene-based bacterial community analysis of two enrichment cultures derived from geographically distinct locations was performed. Analysis of terminal restriction fra...

Physical enrichment of structures has been used for the last decades in aquaculture to improve fish production and welfare. Until now, this practiced monoculture but not polyculture. In study, we developed a polyculture two freshwater species (pikeperch sterlet) recirculated systems (tank 2.4 m3) with or without physical enrichment. Two types were used: cover plank on part tank decreasing light...

The scalar item some is widely assumed to receive a meaning enrichment to some but not all if it occurs in matrix position. The question under which circumstances this enrichment can occur in certain embedded positions plays an important role in deciding how to delineate semantics and pragmatics. We present new experimental data that bear on this theoretical issue. In distinction to previous ex...

Stem cell transplantation is a promising strategy for therapeutic cardiac regeneration, but current therapies are limited by inefficient interaction between potentially beneficial cells (either exogenously transplanted or endogenously recruited) and the injured tissue. Here we apply targeted nanomedicine to achieve in vivo cell-mediated tissue repair, imaging and localized enrichment without ce...

A long-term decline of Zostera marina has occurred throughout the western and central portions of Long Island Sound. Currently, Eelgrass is predominant in Fishers Island Sound and the nearshore zone from New London to East Lyme. Eelgrass is present in the mouth of the Connecticut River but the population size and distribution are not known. The only extant population located west of this river ...

Except for ortho- and para-H2, little is known about nuclear spin isomers (or spin modifications) of molecules. The main reason is the lack of practical enrichment techniques. Recently, a few enrichment methods were developed, which opened up new possibilities in the field. These methods are briefly reviewed. Substantial progress in the field has been made by the introduction of light-induced d...

Global environmental change has negative impacts on ecological systems, impacting the stable provision of functions, goods, and services. Whereas effects of individual environmental changes (e.g. temperature change or change in resource availability) are reasonably well understood, we lack information about if and how multiple changes interact. We examined interactions among four types of envir...

the study was conducted to evaluate the effects of different dietary oil sources supplementation on laying hens’ performance and fatty acids profile of egg yolks. seventy-two 23-week-old laying hens (tetra-sl) divided into six experimental diets (four replicates and three birds per replication) in a completely randomized design for nine weeks. experimental diets were included: 1) control (no oi...