1. AO Research Institute Davos, Davos, Switzerland; 2. University Hospital Regensburg, Regensburg, Germany Introduction Unstable pelvic ring injuries treated conservatively are associated with long hospitalization, inappropriate fragment reduction and a high mortality rate [1]. Surgical intervention with percutaneous sacroiliac (SI) screws combined with anterior pelvic plating has shown a high ...

BACKGROUND Numerous techniques have been used to rejuvenate the aging midface. The Endotine midface technique involves an endoscopic temporal approach, including midface dissection and malar suspension with fixation. The Endotine device (Microaire, Charlottesville, Virginia) eliminates the intraoral incision and use of sutures, enabling multipoint fixation and fast, simple adjustability for opt...

BACKGROUND Primary stability of the graft is essential in anterior cruciate ligament surgery. An optimal method of fixation should be easy to insert and provide great resistance against pull-out forces.A controlled laboratory study was designed to test the primary stability of ACL tendinous grafts in the tibial tunnel. The correlation between resistance to traction forces and the cross-section ...

There is currently limited understanding of the contribution of biological N2 fixation (diazotrophy) to the N budget of large river systems. This natural source of N in boreal river systems may partially explain the sustained productivity of river floodplains in Northern Europe where winter fodder was harvested for centuries without fertilizer amendments. In much of the world, anthropogenic pol...

Previous studies from this laboratory have demonstrated that Mycobacterium leprae, an obligate intracellular bacterial parasite, enters human mononuclear phagocytes via complement receptors on these host cells and bacterium-bound C3. The present study investigates the role of M. leprae surface molecules in C3 fixation and phagocytosis. By enzyme-linked immunosorbent assay, C3 binds selectively ...

The effect of nitrate on N(2) fixation and the assimilation of fixed N(2) in legume nodules was investigated by supplying nitrate to well established soybean (Glycine max L. Merr. cv Bragg)-Rhizobium japonicum (strain 3I1b110) symbioses. Three different techniques, acetylene reduction, (15)N(2) fixation and relative abundance of ureides ([ureides/(ureides + nitrate + alpha-amino nitrogen)] x 10...

abstract background: unstable pelvic fracture, a result of high energy antero-posterior compression injury, has been managed based on internal fixation and open reduction. the mode of fixation in unstable pelvic fracture has, however, been a subject of controversy and some authors have proposed a need to address the issue of partial breach of the pelvic ring elements in these injuries. this stu...

Aim: The study aimed to compare the biomechanical stability and strength of tension band wiring method used treat mayo 2A olecranon fractures with Kirschner (K)-wire or cannulated screw configurations. Material Methods: A total 24 anatomical ulna models (Sawbones Model 1004, Pacific Research Laboratories, Vashon Island, WA) in were divided into two equal groups 12, fixation K-wire (Group 1) 2),...

The Trichodesmium erythraeum is a common colonial marine cyanobacterium in tropical and subtropical oceans. Several authors have reported its importance for the fixation of both atmospheric C and N (CAPONE; CARPENTER, 1982; ZEHR et al., 2001; LUGOMELA et al., 2002; CAPONE et al., 2005). According to Carpenter and Romans (1991), nitrogen fixation by Trichodesmium cells represents an important in...

Simultaneous measurements of photosynthesis (both oxygenic and anoxygenic) and N(inf2) fixation were conducted to discern the relationships between photosynthesis, N(inf2) fixation, and environmental factors potentially regulating these processes in microbial mats in a tropical hypersaline lagoon (Salt Pond, San Salvador Island, Bahamas). Major photoautotrophs included cyanobacteria, purple pho...