Bacteriuria in Enteric Fever

Abstract Not Provided

A Sailor’s Disease Presenting in Urban America with Red Spots on the Legs

Sailors were often affected by nutritional deficiencies due to the absence of fresh foods on long voyages. One example is the development of scurvy from a lack of vitamin C ingestion. In modern society in which fresh food are available this disease is infrequently recognized. The following case describes a 62-year-old male who presented with “red spots” on his legs and a large area of ecchymosis on his thigh. After initial testing failed to elicit a cause, a dietary history revealed that the patient had a peculiar diet of only ice cream with a total avoidance of fruits and vegetables. This case highlights the importance of a good history and physical examination as the basis for medical diagnosis

Complicated cataract surgery: strong leadership protects patients

It is said that “safety is no accident.” This means that safe medical practice does not happen by chance. Careful planning of your operating environment will protect patients, but it requires a holistic approach as surgeons are only as good as the environment they work in and the team that supports them

Complicated cataract surgery: strong leadership protects patients.

It is said that “safety is no accident.” This means that safe medical practice does not happen by chance. Careful planning of your operating environment will protect patients, but it requires a holistic approach as surgeons are only as good as the environment they work in and the team that supports them

Measuring cataract outcomes

Measuring the outcomes of cataract surgery can drive improvement and patient satisfaction. But is visual acuity measurement the only way

Endophthalmitis rates and risk factors following intraocular surgeries: can we turn big-data benchmarks into patient benefit?

Endophthalmitis, although a frequently blinding complication of intraocular surgery when it does occur, is increasingly rare in the modern era of ophthalmic surgery. Other than for cataract surgery, which has sufficiently large volume to permit estimates of rates for even the rarer complications, endophthalmitis rates in other intraocular surgical procedures are difficult for surgeons or institutions to evaluate in their own practice, and to know if they are performing to an adequate standard in attempts to protect patients. Similarly, it is difficult to provide accurate estimates of risk during the process of informed consent. By publishing the endophthalmitis rates from the US Medicare population 2016-2019, the authors have given us the opportunity to take the infection rates from less frequently performed intraocular operations from their very large dataset and either utilise these for audit and informed consent, or to adapt them based on their relative frequencies compared to cataract postoperative infection rates. This data, therefore, may open the door to greater opportunities for eye surgery providers to reflect on their performance in infection prevention following intraocular surgery

Partial discharge measurements in high voltage motors.

The work presented in this thesis is concerned with the development of an on-line technique for detecting and locating partial discharges in the stator winding of a high voltage electrical machine. This technique forms part of an on-line health monitoring strategy for the insulation of high voltage machines. Existing diagnostic techniques and partial discharge measurement systems are reviewed. The requirement for an on-line partial discharge location technique is discussed. An experimental investigation was carried out into the propagation characteristics of partial discharge pulses within a model stator winding. This allowed identification of the main propagation characteristics which were used as the basis for the development of a partial discharge location technique. In the development of a location technique, a means of on-line detection of discharge signals at the motor terminals is required. A study was therefore made on the use of the Rogowski coil for the non-invasive measurement of partial discharges. A partial discharge location system was developed based on the correlation of partial discharge pulses detected at the two ends of a motor phase winding. The performance of the location system was investigated by injecting artificially generated discharge pulses into the model stator winding. Further verification of the ability of the technique to locate the position of discharges was done by injecting high voltage discharges. The final part of the research work was to develop a theoretical model to predict the propagation behaviour of partial discharge pulses in the stator winding of an electrical machine . The effect of electromagnetic propagation through the endwinding region is incorporated in the model of two adjacent coils in a winding