Glucose-dependent growth of the luxCDABE reporter bacterium Pseudomonas fluorescens HK44 was monitored noninvasively in quartz sand under unsaturated-flow conditions within a 45- by 56- by 1-cm two-dimensional light transmission chamber. The spatial and temporal development of growth were mapped daily over 7 days by quantifying salicylate-induced bioluminescence. A nonlinear model...
The effective radius (r[subscript]e) is a crucial variable in representing the radiative properties of cloud layers in general circulation models. This parameter is proportional to the condensed water content (CWC) divided by the extinction (σ). For ice cloud layers, parameterizations for r[subscript]e have been developed from aircraft in situ measurements...
The first results obtained with the Lamont Pumping SeaSoar (LPS), a combination measurement and sampling platform towed by a research ship at speeds of 6–7 kt, are presented. The system allows not only measurement of a suite of oceanographic parameters with in situ sensors, but also delivery of seawater samples...
Observations of mixing over the continental slope using a towed body reveal a great lateral extent (several kilometers) of continuously turbulent fluid within a few hundred meters of the boundary at depth 1600 m. The largest turbulent dissipation rates were observed over a 5 km horizontal region near a slope...
Welcome to the beginning 4-H outdoor cooking project—S’mores and More! If you haven’t yet experienced the joys of cooking outdoors, here’s your opportunity to roast marshmallows, make your own S’mores, and so much more!
4-H Adventures is an informal educational program designed for children in grades K-3. The 4-H Adventures program encourages children to have fun, develop friendships, and learn about their world. The program also aims to strengthen ties among children, families, and their larger communities.
4-H Adventures is an informal educational program designed for children in grades K–3. The program supports young children’s natural curiosity, enthusiasm for learning, and high energy levels by giving them an opportunity for active learning. The 4-H Adventures program encourages children to have fun, develop friendships, and learn about their...