Crystalline aquifers of semi-arid southern India represent a vital water resource for farming communities. A field study is described that characterizes the hydrodynamic functioning of intensively exploited crystalline aquifers at local scale based on detailed well monitoring during one hydrological year. The main results show large water-table fluctuations caused by monsoon recharge and pumpin...

The calculation of the discharge to a constant drawdown well or tunnel in the presence of an infinite linear constant head boundary in an ideal confined aquifer usually relies on the numerical inversion of a Laplace transform solution. Such a solution is used to interpret constant head tests in wells or to roughly estimate ground water inflow into tunnels. In this paper, a simple approximate so...

An 86-year-old woman with severe osteoarthritis and severe pain in her left hip underwent total hip arthroplasty. Intraoperatively, the 22 mm femoral head impinged on the anterior rim of the acetabulum during a reduction maneuver, and disengagement of the femoral head from the neck occurred with migration of the head over the pelvic brim along the inner table of the pelvis. This complication re...

Routine staging includes physical examination, chest X-ray, head and neck endoscopy, and head and neck CT scan or MRI. A thoracic CT scan may be carried out to rule out metastatic disease. Squamous cell head and neck cancer should be staged according to the TNM system and grouped into the following categories (Table). T4 tumors are subdivided into T4a resectable and T4b unresectable. Stage IV i...

A dam spillway is a hydraulic structure that appropriately and safely diverts the outflow to downstream, so that the dam stability and passing of flood flows can be guaranteed. Compared to straight crest spillway, an Ogee spillway with curvature in plan in a fixed-width can pass more flow. Therefore under the low hydraulic heads and the need for a smaller place in plane, they are considered as ...

Acute head injury Epidemiology In the United Kingdom more than 150,000 patients are admitted to hospital each year with an acute head injury. Of this group more than 80% are classified as having a mild head injury, as defined by the Glasgow Coma Scale (GCS). Approximately 1-2% of patients admitted to hospital after traumatic brain injury die as a consequence of their injuries with the majority ...

OBJECTIVES To determine the rate of extrauterine growth restriction in very low birth weight infants and to evaluate the influence of perinatal variables, clinical practices, and neonatal morbidities on this outcome. METHODS A longitudinal study was performed in four neonatal units in the city of Rio de Janeiro. 570 very low birth weight infants were analyzed. The study included perinatal var...

IGARASHI, K. Microvibration on the Scalp as a Diagnostic Aid in Orthostatic Dysregulation. Tohoku J. exp. Med., 1971, 105 (1), 11-17 The microvibration (MV) on the scalp of the parietal region in 23 healthy subjects and 16 patients with orthostatic dysregulation (O.D.) ranging from 9 to 11 years of age was recorded at rest in the supine position on the horizontally flat table and in the 20° hea...

Advantage was taken of differences in the electrical excitability of vestibular-nerve fibers to characterize the afferent input to the canal-related vestibulo-ocular reflex. Large anodal (inhibitory) currents, when delivered to both ears, result in a selective, reversible ablation of irregular afferents. Their background discharge and responses to head rotations are temporarily abolished. The s...

For efficient use of water, accurate measurement of flow in (field/laboratory) channels is required for many water resource projects. The present work is aimed to study the flow characteristics of a twin plate weir (two sharp-crested plates are placed one behind the other at some distance) under free and submerged flow conditions. Experiments are performed with four spacing of the twin plate we...