Development of a test system to analyze different hip fracture osteosyntheses under simulated walking

The mechanical complications of osteosyntheses after hip fractures are previously investigated by mostly static or dynamic uniaxial loading test systems. However, the physiologic loading of the hip joint during a normal gait is a multiplanar, dynamic movement. Therefore, we constructed a system to test osteosyntheses for hip fractures under physiologic multiplanar loading representative of normal gait. To evaluate the testing system, 12 femora pairs were tested under 25,000 cycles with two standard osteosyntheses (Proximal Femoral Nail Antirotation/Gamma3 Nail). For angular movement, the varus collapse to cut out (proportional to(CO)) (proportional to(CO) = 4.8 degrees +/- 2.1 degrees for blade and proportional to(CO) = 7.8 degrees +/- 3.8 degrees for screw) was the dominant failure mode, and only slight rotational angle shifts (proportional to(Rot)) (proportional to(Rot) = 1.7 degrees +/- 0.4 degrees for blade and proportional to(Rot) = 2.4 degrees +/- 0.3 degrees for screw) of the femoral head around the implant axis were observed. Angular displacements in varus direction and rotation were higher in specimens reinforced with screws. Hence, the cut out model and the migration directions showed a distinction between helical blade and hip screw. However, there were no significant differences between the different implants. The new setup is able to create clinical failures and allows to give evidence about the anchorage stability of different implant types under dynamic gait motion pattern

Spielend Lernen im Kindergarten. Neue Technologien im Einsatz

Dieses Kapitel behandelt den kindlichen Zugang zu neuen Technologien im Alltag. Da die Kinder von heute in einer Medienwelt aufwachsen und schon früh mit Medien und Medienprodukten in Kontakt kommen und diese auch nutzen, sind die vorschulischen Bildungsinstitutionen gefordert, aktive Medienarbeit zu leisten und dabei einen verantwortungsbewussten Umgang mit Medien zu fördern. In engem Zusammenhang mit dem Einsatz von neuen Technologien im Vorschulbereich steht die Medienbildung. Deren Förderung stellt schon in der frühen Mediennutzung eine Notwendigkeit dar und wird in diesem Kapitel anschaulich mit ihren wichtigsten Zieldimensionen beschrieben. Die Autorinnen und Autoren verweisen auf die spielerische Umsetzung medienpädagogischer Ziele und den damit verbundenen Einsatz von neuen Technologien. Die Förderung der Medienbildung lässt sich in der Kindergartenarbeit nicht losgelöst von anderen Bildungsschwerpunkten vollziehen und ist somit immer verknüpft mit unterschiedlichen Bereichen der kindlichen Entwicklung und Förderung. Beispiele aus der Praxis zeigen die sozialen, kommunikativen, lernmethodischen, spielerischen und bildenden Aspekte des Lernens und Lehrens mit neuen Technologien sowie die damit zusammenhängenden Herausforderungen und Hindernissen. (DIPF/Orig.

There’s No Escape: The Plaintiff’s Right to Dismiss After the Submission of a Motion for Summary Judgment or a Motion to Dismiss

The plaintiff’s right to dismiss is an escape hatch that the plaintiff can use when “unforeseen contingencies, accidental omissions, a mistake in procedure or other circumstances unconnected with the merits” undermine the plaintiff’s ability to litigate its case. But that hatch should be closed while the court is considering a potentially dispositive motion that targets the merits of the case. A lawsuit is not a trial run. Once the lawsuit has been submitted for decision on the merits, the court should be allowed to make a decision

Is the rotation of the femural head a potential initiation for cutting out? A theoretical and experimental approach

We conclude the center-center position in the head of femur of any kind of lag screw or blade is to be achieved to minimize rotation of the femoral head and to prevent further mechanical complications

Elbow Dislocations: A Review Ranging from Soft Tissue Injuries to Complex Elbow Fracture Dislocations

This review on elbow dislocations describes ligament and bone injuries as well as the typical injury mechanisms and the main classifications of elbow dislocations. Current treatment concepts of simple, that is, stable, or complex unstable elbow dislocations are outlined by means of case reports. Special emphasis is put on injuries to the medial ulnar collateral ligament (MUCL) and on posttraumatic elbow stiffness

Probing conformational states of glutaryl-CoA dehydrogenase by fragment screening

The first crystal structure is reported of a glutaryl-CoA dehydrogenase in the apo state without flavin adenine dinucleotide cofactor bound. Additional structures with small molecules complexed in the catalytic active site were obtained by fragment-based screening

It\u27s Time to Pack Away the Crystal Ball: The Need for Remand in Pleading and Proof Cases of First Impression in Nebraska

I. Introduction II. If Only I Knew What to Plead ... A. To Appeal or to Amend—The $64,000 Question ... B. The Advantages of Modifying the No-Remand Rule … C. The Unfairness of Affirming on Grounds Other Than Those Relied on by the Trial Court III. If Only I Knew What to Prove ... A. The Unfairness of Applying New Proof Requirements Retroactively ... B. The Strange Case of Damages IV. Conclusio

What\u27s So Special About Special Proceedings? Making Sense of Nebraska\u27s Final Order Statute

I. Introduction II. Current Definitions of the Key Statutory Terms III. The New York Code of Civil Procedure ... A. The Distinction Between Actions and Special Proceedings ... B. Appellate Jurisdiction of the New York Court of Appeals IV. Go West, Young Code ... A . Ohio ... B. Nebraska V. Refocusing the Law of Special Proceedings ... A. Procedure-Based Special Proceedings ... 1. Single-Faceted Proceedings ... 2. Multifaceted Special Proceedings ... B. Policy-Based Special Proceedings ... 1. The Old Wine: Special Proceedings ... 2. The New Bottles: Collateral Orders ... 3. To Appeal or Not to Appeal, That is the Question ... C. Orders Made on Summary Applications VI. Bidding Farewell to Orders That Prevent Judgments ... A. The Contemporary Uses ... 1. Reversals and Remands ... 2. Multiple Claim/Multiple Party Litigation ... B. The Historical Meaning … C. The Farewell VII. Conclusio