seismic retrofit of masonry slabs in existing steel or masonry buildings has found special significance in current codes as failure of unstable jack arch slabs has been reported as a major reason for collapsing structures in middle east deadly earthquakes. in this paper, three retrofit schemes are investigated and compared. the proposed rehabilitation techniques consist of a single x strapping,...

Although secondary tumors of the diaphragm are fairly common, primary tumors in that location are rare, Binney ( 1 ) was able to find only four cases in the literature of the fifty-year period prior to 1931. Of these four, one was a benign fibromyoma, one a fibromyosarcoma, one a (( round-cell sarcoma,” and one a lipoma. Two of the four were found at operation and two at autopsy . I n 1932 Burv...

abstract: the new neonatal ventilation methods have been developed along with utilization of new technological tools.this device is synchronized with the patient’s respiratory efforts. the ideal synchronized breath needs to be synchronous with initiation, size, and termination of the breath without delay in detecting of initial resiratory effort by device .the synchrony of respiration contribut...

Abstract Background Lipoblastoma is a rare benign mesenchymal tumor of embryonal fat affecting mainly children below 3 years age. It presents usually as painless rapidly growing soft lobular mass in the extremities, trunk, and less frequently head-neck region. Preoperative imaging used to assess extent disease aid surgical planning. Complete excision without injury surrounding vital structures ...

A multi-stage primary vacuum standard system for the generation of calibration pressures, in the range 10 -10 mbar has been developed. It is based on volume expansion method, whereby the range is 0 4 extended to lower pressures by multiple expansions. The standard system consists of four chambers that help to achieve a pressure reduction by a factor of about 10 in the main calibration chamber a...

Low-frequency electroacoustic absorbers have recently been developed as a solution for the modal equalisation. Firstly investigated in waveguides, the technique consists in matching the acoustic impedance at a closed-box loudspeaker diaphragm to the characteristic acoustic impedance of air. Extending the results in a duct to rooms brings up several challenges. Some parameters, such as the posit...

Diaphragmatic injuries (DI)-a frequent accompaniment of thoraco abdominal trauma remains a diagnostic challenge to surgeons and radiologists. (1-4) Case reports and case series describe myriad ways in which this condition can present early, or in a delayed fashion following either blunt or penetrating trauma (5-9). However it is important to recognize DI early because of the serious morbidity a...

Distinguishing diaphragmatic eventration from rupture in the trauma setting can be a considerable challenge. We present a case involving a man suffering from chest pain and with a raised left hemidiaphragm on the chest radiograph after a motor vehicle injury. A review of the literature discusses the use of imaging modalities and subsequent surgical diagnostic procedures in the face of uncertainty.