One assumption underlying the use of stable nitrogen isotopes (δ 15 N) for determining (N) sources is that δ N primary producers reflects in a predictable manner. To test this assumption, we conducted two experiments. First, varied with constant concentration NO 3 − or NH 4 + to determine whether either nutrient preferentially selected by macroalga Enteromorpha intestinalis (L. Link) and if isotopic ratio affected selectivity. Tissue increased supplied both but sequestering was more rapid...

In keeping with a sociocultural view of children’s literacy development, this study investigated the book reading behaviors African American and Puerto Rican mothers their Head Start children. Ten 10 children participated. The communicative produced during were analyzed styles dyads also identified. Results revealed that read text from books, responded to asked questions most frequently. mothers’ utterances, labels/comments, significantly more labels/comments than did mothers. had higher...

Nutrient inputs to estuaries are increasing worldwide, and anthropogenic contributions increasingly complex difficult distinguish. Measurement of integrated effects salinity nutrient changes simultaneously can help ascertain whether N sources similar magnitude stable isotope (δ15N) signatures river dominated. We used Enteromorpha spp., an opportunistic macroalga, obtain measures salinity, supply, source in estuaries. outplanted cultured algae the field along spatial gradients within three...

Abstract Melons ( Cucumis melo ) of 3 cultivars (‘Gold Star’, ‘Saticoy’, and ‘Superstar’) were stored at 5° or 12.5°C for 2, 5, 9 days 20° 2 5 days. ‘Gold Star’ ‘Superstar’ deteriorated less in storage than ‘Saticoy’. In general, levels fructose glucose decreased with an increase time temperature. The : ratio increased storage. No change was detected soluble solids content (SSC) sucrose concentration. Sensory evaluations (7 12.5°) vs. freshly harvested melons showed no difference texture,...

ABSTRACT We report three cases of angiotensin converting enzyme inhibitor (ACEI) induced nephrotoxicity in preterm infants with congenital heart disease. Patients developed acute renal failure after starting captopril or enalapril at doses commonly prescribed for term neonates. There was no underlying disease found these and the reversible upon discontinuation ACEI. Conservative ACEI should be used patients multiple risk factors nephrotoxicity. A summary previously reported premature is included.

The global presence of antimicrobial resistance (AMR) in aquatic systems has the potential to influence public health by reducing antibiotic efficacy, and environment altering structure activity microbial communities. Wastewater treatment plant (WWTP) discharge, agricultural runoff, variables such as precipitation, warm temperatures, nutrient availability are thought increase AMR occurrence environment. In this study, we examined relationships between tetracycline‐resistant Escherichia coli...

A microcosm unit with tidal simulation was developed to address the challenge of maintaining ecologically relevant regimes while performing controlled greenhouse experiments on smooth cordgrass, Spartina alterniflora. •We designed a simple, inexpensive, easily replicated and tested whether S. alterniflora growth in microcosms similar that tidally influenced plants field Sapelo Island, Georgia. After three months exposure either natural or simulated treatment, receiving had stem density,...

Mixtures of chemicals from human sources are pervasive in aquatic systems, yet their effects on communities relatively understudied. Emerging contaminants such as organophosphorus flame-retardants (e.g. tetrakis hydroxymethyl phosphonium chloride (THPC)), toxic to planktonic species at environmentally relevant concentrations. Additionally, inorganic ammonium agriculture and industry is likely enter surface waters simultaneously with flame retardant chemicals. While plankton known, its...