A production leak test system using digital holography, Optical Leak Testing (OLT), has been developed for simultaneous gross and fine leak testing of hermetic semiconductor, MEMS and Optoelectronic devices. The technique has also shown the unique capability to leak test ceramic SMC’s on PCBs, even if conformal coated. Many devices are manufactured using welded, brazed or soldered metal lids wi...

Air leaks are a common complication of pulmonary resection. The aims of this study were to analyze risk factors for postoperative air leak and to evaluate the role of air leak measurement in identifying patients at increased risk for cardiorespiratory morbidity and prolonged air leak. From March to December 2009, 142 consecutive patients underwent pulmonary resection for malignancy and were pro...

BACKGROUND Patients treated with nasal continuous positive airway pressure (nasal CPAP) for obstructive sleep apnea (OSA) often have adverse effects from and poor adherence to CPAP. OBJECTIVE To describe abnormal CPAP leak profiles and assess inter-observer reliability in identifying leak profiles and the correlation of leak profiles with leak rate and clinical outcomes. METHODS In a sleep-...

introduction: endoscopic repair is considered the treatment of choice in cerebrospinal fluid (csf) rhinorrhea. the aim of our study was to analyze the etiopathogenesis of csf rhinorrhea, the outcome of treatment and the causes of failure in a developing-country setting.   materials and methods: a retrospective review of patients treated with endoscopic repair for csf rhinorrhea at a tertiary ca...

a majority of people, asked a simple yes/no question, were indeed opposed to the creation of animalhuman hybrids. However (in line with similar surveys on animal experimentation) support for the procedure rose to 61 per cent when the potential benefits of the work were explained. Announcing the eventual decision in September, the HFEA emphasised the importance of this public support – which res...

BACKGROUND During noninvasive ventilation (NIV), leak around the mask may cause inadequate ventilatory support or patient-ventilator asynchrony such as auto-triggering. Some NIV ventilators may be better than others at compensating for leak. METHODS We bench studied 3 NIV ventilators (Vision, Carina, and Trilogy100) and 2 ICU ventilators (Puritan Bennett 840 and Evita XL) to assess how they ...