Extremes in soil moisture, either too much or too little, present a significant risk to agricultural productivity. Managing and mitigating risk requires information and knowledge to assess risk potential, implement risk reduction strategies and deliver responses to this risk. Synthetic aperture radars (SARs) are sensitive to the dielectric properties of soils and are thus well suited to provide...

The ZEUS experiment at HERA has collected 46:6pb ?1 of e + p data during 1994 to 1997. This amount is more than twice that of data used in our previous analysis reporting an excess of high Q 2 and high x neutral current(NC) events. We have measured Born level cross sections as a function of Q 2 both for neutral and charged current(CC) deep inelastic scattering reactions using all data up to 199...

BACKGROUND Cardiovascular disease (CVD) is a major public health concern in the United States. We developed an annual training course, Nutrition and Public Health, A Course for Community Practitioners (NPH), to address the identified training needs of state staff responsible for designing and implementing the Well-Integrated Screening and Evaluation for Women Across the Nation (WISEWOMAN) progr...

Interactions between aboveground and belowground biota have the potential to modify ecosystem responses to climate change, yet little is known about how drought influences plant-soil feedbacks with respect to microbial mediation of plant community dynamics. We tested the hypothesis that drought modifies plant-soil feedback with consequences for plant competition. We measured net pairwise plant-...

ABSTRACT Background: The radiological impact of the use of phosphate fertilizers in soil is due to the internal irradiation of the lung by the alpha particles, short lived radon-thoron progeny and the external irradiation of the body by gamma rays emitted from radionuclides in situ. This paper describes the results of gamma spectrometric measurements of the concentration ...

1. Describe the complex interactions between nutrition and human immunodeficiency virus (HIV)/AIDS. 2. Describe the risk factors that contribute to malnutrition in HIV/AIDS. 3. Explain how to conduct a nutritional assessment of children and adults. 4. Explain how to determine nutrient needs of children and adults. 5. Describe how to classify malnutrition. 6. Describe nutrition intervention stra...

A multi-syringe flow injection system for the potentiometric determination of exchangeable potassium in soil samples is proposed. Firstly, a manifold was devised to allow determination in soil extracts prepared off-line. It was possible to analyze samples prepared in extractants with different composition (Mehlich or Morgan) without physical or chemical modification of the manifold. A linear dy...

heavy metals in high concentrations in soils are potential health risk for humans, animals, and plants. soil samples were collected in five replicates from 20 points with four land use including: roads, refineries, residential area (sadra town), and farmland. heavy metals were determined using flame atomic absorption (analyticjena), while dtpa was chosen as trace elements extractor. in this stu...

To enhance the vegetation signal in remotely sensed data and provide an approximate measure of live green vegetation, a number of spectral vegetation indices have been developed to estimate biophysical parameters of vegetation. The sensitivity of the normalized difference vegetation index (NDVI) to the soil background and atmospheric effects has generated an increasing interest in the developme...