PubMed Health⌕ Search

Biomedical subjects

Mohan Reddy

Publications and source records attributed to Mohan Reddy.

2 recordsLinked to original sources

Nutrition and aging.

Nutritional concerns are common among older adults seen in the primary care office. The food pyramid for people over the age of 70 years is a useful starting point for discussions about what reasonably healthy older adults should be eating and drinking. If there is a decline in the ability to perform IADLs or if there is a decrease in appetite or the discovery of unintended weight loss, careful assessment followed by targeted interventions may improve health outcomes and the quality of life. Restrictive diets are often not well tolerated, especially by frail older adults. Dietary recommendations blending the elements of the pyramid and the essential components of accepted medical nutritional therapy that are most consistent with the patient's lifelong eating patterns are most likely to succeed.

Age Factors↗

Resolution of MRS applied to the characterization of hard-rock aquifers.

The performance of the Magnetic Resonance Sounding (MRS) method applied to the investigation of heterogeneous hard-rock aquifers was studied. It was shown using both numerical modeling and field measurements that MRS could be applied to the investigation of the weathered part of hard-rock aquifers when the product of the free water content multiplied by the thickness of the aquifer is >0.2 (for example, 10-m-thick layer with a 2% water content). Using a currently available one-dimensional MRS system, the method allows the characterization of two-dimensional subsurface structures with acceptable accuracy when the size of the subsurface anomaly is equal to or greater than the MRS loop. However, the fractured part of hard-rock aquifers characterized by low effective porosity (<0.5%) cannot be resolved using currently available MRS equipment. It was found that shallow water in the weathered part of the aquifer may screen MRS signals from deeper water-saturated layers, thus further reducing the possibility of investigating deeper fractured aquifers. A field study using the NUMIS(plus) MRS system developed by IRIS Instruments was carried out on an experimental watershed in southern India. A heterogeneous unconfined aquifer in a gneissic formation was successfully localized, and MRS results were confirmed by drilling shortly after the geophysical study. The top of the aquifer revealed by MRS was found to be in a good agreement with observed static water level measurements in boreholes.

Image Processing, Computer-Assisted↗