Displaced intra-articular distal radius fractures are difficult to treat, with numerous associated complications. The potential onset of post-traumatic osteoarthritis (OA) is a major concern. The relationship between malreduced intra-articular fracture of the distal radius and subsequent early onset of radiocarpal OA is clinically important, yet poorly understood. To better understand this pres...

Let A be an n × n complex matrix such that every row and every column has at most one nonzero entry. We determine permutations of the nonzero entries of A so that the resulting matrix has maximum numerical radius. Extension of the results to operators acting on separable Hilbert spaces are also obtained. Related results and additional problems are also mentioned. AMS Subject Classification. 15A60.

Measurements are reported on the mechanical properties of high-aspect-ratio micromechanical structures formed using a conventional 0.5-μm CMOS process. Composite structures are etched out of the CMOS dielectric, aluminum, and gate-polysilicon thin films using a post-CMOS CHF3:O2 reactive-ion etch and followed by a SF6:O2 silicon etch for release. Microstructures have a height of 5 μm and beam w...

die erlebnislyrik umfasst die gedichte, in denen es um die erinnerung eines lyrischen ichs an ein geschehen geht, wobei mit dem gedichtschreiben ein erinnerungsvorgang in gang gesetzt wird, der einen bezug zwischen dem erlebenden ich und dem geschehen schafft und damit ein unmittelbares erleben erzeugt. die speziellen mittel der lyrik wie reim, rhythmik, klang, melodie, wiederholung, bildsprach...

BACKGROUND A die-punch fracture is a depression fracture of the lunate fossa of the distal radius. We propose a morphological classification of die-punch fractures that includes five types: center depression fractures, vertical depression fractures, volar depression fractures, dorsal depression fractures, and double die-punch fractures. METHODS The radiographs of 112 die-punch fractures treat...

es wird gezeigt, dass bei der standiger zunahme der production von roheisen ,die fast ausschliesslich in hochofen erfolgt, der gestelldurchmesser und die ofeneinheit zunimmt demgegenuber der spezifische brennstoffverbrauch abnimmt. weiterhin wird die entwicklungsrichtung der stahlerzeungsverfanren wegen der wirtschaftlichen und technischen hinsicht untersucht und festgestellt, dass nuter versch...

background:   iran places sixth amongst high risk natural disaster countries and guilan province of iran shoulders a large amount of socio-economic burden due to snow catastrophes. the more knowledge of circumstances we have, the more efficient our future encounters will be. methods: in this retrospective study, of all of the patients admitted to poursina hospital due to snow and ice related tr...

In the spinal cord of the lamprey, regeneration of giant reticulospinal axons occurs following transection. We show that partial degeneration of the proximal axonal segment, or "die-back," also occurs following spinal transection and it precedes regenerative outgrowth. The die-back during the first 5 days post-transection is reduced significantly by application of a 10-microA DC current across ...

metal forming processes, compared with machining ones, reduce production steps and increasemanufacturing speed in addition to saving raw material. in this paper, forming process of column ofa steering mechanism is investigated by finite element analyses and experimental tests; andoptimum die design parameters are found. forming process parameters including die opening angle,bearing length, clea...