in this paper a single server queuing production system is considered which is subject to gradual deterioration. the system is discussed under two different deteriorating conditions. a planning horizon is considered and server which is a d/m/1 queuing system is gradually deteriorates through time periods. a maintenance policy is taken into account whereby the server is restored to its initial c...

A 13-year-9-month-old female child presented with congenital kyphoscoliosis along with progressive paraparesis. Radiographs confirmed kyphoscoliosis and magnetic resonance imaging revealed a stretched and flattened spinal cord over the kyphotic deformity and a T7 hemivertebra. She underwent a posterior correction of the curve along with posterior decompression and a posterior to anterior excisi...

We study a buyer-seller problem in which the good is information and there are no property rights. The buyer is reluctant to pay for information whose value he does not know, but the seller cannot credibly reveal this value without disclosing the information itself. Information comes as divisible hard evidence. We show how the seller can appropriate a substantial fraction of the value through g...

(CHEST 1999; 115:267–268) A 50-year-old woman develops a gradual deterioration in oxygenation shortly after single lung transplantation. This patient, with alpha-1-antitrypsin deficiency, undergoes right lung transplantation for emphysema. The surgery performed through a right thoracotomy is uncomplicated and the patient is transferred to the ICU for recovery. Shortly after arrival, the nurses ...

seeds deterioration is a natural phenomenon that occurs in all seeds and leading to gradual decline of seed viability during storage. however, the rate at which seeds age depends upon their physiological status, genetic constitution and storage conditions. in the present study we the examined relationship between accumulation of reducing and non-reducing of sugars, soluble protein, the activity...

OBJECTIVES Patients who are deteriorating, with uncertain recovery and with a short prognosis often have complex needs. The AMBER care bundle systematically manages these patients by promoting consistent communication and care planning. To describe how the AMBER bundle is applied in a UK hospital. To identify factors affecting the use of the AMBER bundle in patients who subsequently died. To ga...

We systematically present four calculi for gradual typing: the blame calculus of Wadler and Findler (2009); a novel calculus that pinpoints blame precisely; the coercion calculus of Henglein (1994); and the threesome calculus of Siek and Wadler (2010). Threesomes are given a syntax that directly exposes their origin as coercions in normal form, a more transparent presentation than that found in...

Further to the proposal and application of a stochastic methodology and the resulting first exit time distribution function to life table data we introduce a theoretical framework for the estimation of the maximum deterioration age and to explore on how “vitality,” according to Halley and Strehler and Mildvan, changes during the human lifetime. The mortality deceleration or mortality leveling-o...