Background: Circumcision is the most common surgical intervention performed in non-medical settings. It is the most common but neglected procedure in our country. Barbers, quacks and other non qualified persons perform circumcision by their own methods without proper sterilization and without knowing the consequences. Objectives: The objectives of our study were to determine different methods o...

Nomex honeycomb composites are used extensively in aerospace, automotive, and other industries due to their superior material properties. However, the tool wear during machining can compromise processing accuracy stability of whole process, thus studies on strengthening method urgently needed. This study presents a radial difference calculation (RDC) evaluate disc cutter quantitatively both con...

The levelling of the field surface after shallow tillage with a planar cutter, characterized by such qualitative indicator as combiness, is within limits allowed agrotechnical requirements. We have developed an original design plane cutter for tillage. has various options sharpening angle rack and mortar, which been optimized. Optimal according to criterion minimum energy consumption while obse...

Purpose. To observe and classify vitreous incarcerations in patients undergoing second 20-gauge pars plana vitrectomy (PPV) for recurrent retinal detachment. Methods. Retrospective noncomparative consecutive case series. Eighty-two consecutive patients with recurrent retinal detachment were included. The previous sclerotomy sites were examined by our sclera depression method and the vitreous in...

PURPOSE We investigated the performance of a novel device for adult circumcision, that is the circular cutter with stapled anastomosis for circumcision. MATERIALS AND METHODS A total of 62 men with a mean ± SD age of 28 ± 8 years were enrolled from June to September 2012 to undergo circumcision using the circular cutter with stapled anastomosis. The device used 18 staples for anastomosis, whi...

Artificial DNA cutters have been developed by us in our previous studies by combining two strands of pseudo-complementary peptide nucleic acid (pcPNA) with Ce(IV)-EDTA-promoted hydrolysis. The pcPNAs have two modified nucleobases (2,6-diaminopurine and 2-thiouracil) instead of conventional A and T, and can invade double-stranded DNA to activate the target site for the scission. This system has ...

Tropical leaf-cutter ants cultivate the fungus Attamyces bromatificus in a many-to-one, diffuse coevolutionary relationship where ant and fungal partners re-associate frequently over time. To evaluate whether ant-Attamyces coevolution is more specific (tighter) in peripheral populations, we characterized the host-specificities of Attamyces genotypes at their northern, subtropical range limits (...

Curvilinear tooth gears are commonly produced on a face milling cutter and a hob cutter. However, this paper proposes a kind of curvilinear tooth gear which is processed by a parallel linkage with a single blade cutter. For the purpose of identifying the meshing and contact characteristics of curvilinear tooth gears, the paper covers the following: (i) equations of tooth surfaces are deduced fr...

BACKGROUND Despite the growing acceptance of laparoscopic colon surgery, an abdominal incision is needed to remove the specimen and perform an anastomosis. Recently, natural orifice specimen extraction (NOSE) and intracorporeal anastomosis have been proposed to minimize abdominal wall trauma and improve the quality of laparoscopic colon resections Objective: To evaluate the feasibility and safe...

Given a 3-axis cutter motion we ask for a geometric representation of the resulting surface. Our discrete solution starts with a regular array of height values initialized e.g. to some constant value. The cutter is positioned at each array element of the scan-converted motion path, and the heights of the elements in the array covered by the cutter are decreased according to the cutter's geometr...