e s asectomy is the safest and most dependable method of permanent contraception available o men today. More than 500,000 vasectomies are erformed in the United States and more than 5,000 in Canada each year. Of American married ouples, 7% to 10% choose vasectomy as their form f birth control. This has made vasectomy the most ommon urologic procedure in North America.1–3 Although vasectomy is a...

Method The conjunctival flap is prepared and reflected over the cornea by the method described by Scheie (I958) and the limbal area is exposed. With the blade of a scalpel, held perpendicularly to the limbal plane, a cut 3 mm. long is made in the limbal tissue (Fig. i a, b) concentric to the limbus more than half the depth of the sclera. At either end, two cuts I *5 mm. long are made perpendicu...

BACKGROUND In the developmental stage of laparoscopic cholecystectomy (LC) it was considered 'unsafe' or 'technically difficult' to perform laparoscopic cholecystectomy for acute cholecystitis (AC). With increasing experience in laparoscopic surgery, a number of centers have reported on the use of laparoscopic cholecystectomy for acute cholecystitis, suggesting that it is technically feasible b...

Much of the tremendous progress in integrated circuit technology and performance over the past 30 years has been fuelled by the progress in lithography. The ability to print increasingly smaller features has enabled higher speed transistors, higher packing densities and lower power dissipation in CMOS circuits. The productivity of the integrated circuit industry has been on a very steep perform...

According to data from the National Study of Family Growth, vasectomy is utilized by 6-13% of American couples for their form of contraception. Physician surveys have shown that over 500,000 men undergo vasectomies per year, and more than 75% of vasectomies are performed by urologists. This chapter provides a brief history of vasectomy, as well as recommendations for preoperative counseling, an...

Background Teaching psychomotor skills requiring high levels of dexterity can be difficult, particularly if students lack innate ability. Furthermore this can be a safety issue when real subjects are involved. Previous studies have found sensory awareness training can improve dexterity over the short-term. Therefore it seems prudent to determine if this strategy can provide an effective alterna...

Surgical airway access justifiably remains the final option for managing the 'can't intubate can't ventilate' situation, but available techniques are often complicated and might require special equipment. This paper reports on the real world experience of two experienced Australian medical specialists with backgrounds in Anaesthesia and Aeromedical Retrieval who performed 24 surgical airways, m...

Planar cell polarity (PCP) has been under genetic dissection for decades. More and more fundamental developmental processes have been found relying on PCP signaling. However, mechanisms of how PCP signaling generates asymmetry is still unknown. A recent paper in Chemistry & Biology (Sundberg et al., 2011) represents the efforts to decipher the intracellular code of polarity signaling.

Our previous study in CHEST (November 1997)1 reported that there are detectable and increased levels of cytotoxic eosinophil cationic protein (ECP) in the BAL fluid of lung transplant patients with acute allograft rejection, bacterial infection, or cytomegalovirus disease, compared with well, disease-free lung transplant recipients. One possible mecha¬ nism of the activation of eosinophils duri...

OBJECTIVE We describe four patients presenting early oral cancers, detected cytologically on non-invasive brush biopsies including DNA-image cytometry as an adjunctive method before histology on scalpel biopsies confirmed the evidence of malignancy. METHODS Brush biopsies were performed and smears thereof investigated cytologically. After Feulgen restaining, DNA-measurements were performed us...