A 7-month-old male infant was referred by his pediatrician for evaluation of “two small bumps on the feet” since a month before. The size of these lesions reportedly had not changed in the past month, and they did not seem to bother the patient. The patient was born full-term with no complication, was at the 25th percentile for birth weight, and was average for height and head circumference. Th...

Throttle surge tanks are a part of high head powerplants. The main consequence of a throttle placement is to introduce head losses by accelerating the flow. They make it possible to manage extreme water levels during mass oscillations while increasing water surge, e.g. water hammer, in the headrace tunnel. This phenomenon happens every time the flow discharge is changed in the waterway. Either ...

Data from the National Hospital Discharge Survey, the Veterans Administration Hospitals and Armed Forces Hospitals were reviewed to estimate the number of endarterectomies of extracranial vessels of head and neck performed in the United States. The number increased from around 15,000 in 1971 to around 85,000 in 1982. An estimated 2.8% of those operated in non-federal hospitals were discharged d...

Power head with high power and large torque is the main power equipment of the rotary drilling rig. Aimed at the working condition, energy saving torque loading test program of power head was put forward and mathematical and simulation models of hydraulic energy closed-loop torque loading system were established. Combined with bond graph and state equations of torque loading system with single ...

Piano Key Weirs (PKWs) are an alternative to linear overflow structures, increasing the unit discharge for similar heads and spillway widths. Thus, they allow to operate reservoirs with elevated supply levels, thereby providing additional storage volume. As they are relatively novel structures, few design criteria are available. Hence, physical model tests of prototypes are required. This study...

Requalification of low-head ramped weirs through the addition substrates (retrofitting) has attracted attention in recent years. However, few studies are available on how this measure affects negotiation by fish. This study aimed to assess performance an experimental weir (3.00 m long with 10% slope; 0.30 head-drop) enhance passage a potamodromous cyprinid species, Iberian barbel (Luciobarbus b...

Of recent years the problems of human relations in hospital have attracted considerable concern, and one of the most discussed aspects of these relations is the giving of information to patients by medical and paramedical staff. The subject was discussed in detail by an international study group the proceedings of which are related by Barnes (1961), and various studies have reported that one of...

A systematic review of 63 randomized controlled trials (RCTs) compared A1C reductions among the five classes of oral agents.1 The studies met the following criteria: study period of at least three months, enrollment of at least 10 subjects, and reported A1C reduction. Two groups of trials-monotherapy head-to-head studies (23 trials) and monotherapy versus placebo studies (31 trials)-were compar...

Operator radiation exposure is an important occupational hazard compounded over the course of an interventional radiologist's career. This study compared operator radiation dose to the eye and head for different positions around the patient. Compared with cases performed from the femoral region, exposures were 1.8 times higher at the side, and 1.6 times higher at the head, using conventional ap...