Alteration of FHR pattern and cerebral metabolic rate of glucose of the fetus measured by positron emission tomography during progress of acidemia. The significance of overshoot acceleration in FHR

Peer Reviewe

Individuality and reproducibility in high-speed motion of volleyball spike jumps by phase-matching and averaging

Pour l'analyse des traumatismes du genou en volleyball, un système a été développé pour obtenir des représentations en forme d'onde du mouvement très rapide des sauts de smash

Fracture dominant in friction stir spot welded joint between 6061 aluminum alloy and galvannealed steel based on microscale tensile testing

The macroscale mechanical properties of dissimilar joints are generally influenced by the fracture behavior of joint interface. However, little is known about the dominant factor for the joint properties related with both macroscale fracture behavior and microscale interfacial properties. Herein, microscale tensile testing of the joint interface was coupled with the macroscale fracture evaluation to elucidate the dominant factor of strength in dissimilar joints between 6061 aluminum alloy and high tensile strength galvannealed steel via friction stir spot welding (FSSW). Microstructural analyses revealed the characteristic formation of interfacial microstructure accompanied by friction and Zn discharge during the FSSW process. Microscale tensile testing was performed on the specimen on which the pre-notch was introduced to induce local fracture at the intended position on the joint interface. Results showed the presence of the weakest interface attributed to initial joining defects formed by Zn concentration at the outer area, which were consistent with the outside of the crack arresting area confirmed by macroscale evaluation. These results indicated that the joint strength of dissimilar joints between 6061 aluminum alloy and galvannealed steel is dominated by the local strength of the joining area without defects and suggested a process design for improving dissimilar joints

Traumatic Cerebral Aneurysm -- Surgical Manafement and mportance of Post-Traumatic Cerebral Angiography Before Delayed Rupture --

We report rare case of traumatic cerebral aneurysm. A 36-year-old man fell and struck the right pariental region of his head. He lost consciousness for 10 min but had no neurological deficits on admission. CT scan revealed right acute subdural hematoma. On the eighth day, we anticipativery performed precautionary cerebral angiography, which ahowed a traumatic cerebral aneurysm on the peripheral branch of the right middle cerebral artery. This aneurysm was cured by microneurosurgery and the patient was discharged without deficits. The most important aspect of the present case was the aneurysm was discovered in advance by cerebral angiography and cured by microneurosurgery. We review previous cases of traumatic cerebral aneurysm and discuss the importance of cerebral angiography after head injury and the surgical management of traumatic cerebral aneurysm

Chiral Recognition and Kinetic Resolution of Aromatic Amines via Supramolecular Chiral Nanocapsules in Nonpolar Solvents

Herein we report the first example of chiral recognition and kinetic resolution of aromatic amine guests using supramolecular nanocapsules assembled from cyclodextrin derivatives in nonpolar media. With these nanocapsules, an extremely high chiral recognition of 1-(1-naphthyl)­ethylamine (<b>1</b>) in cyclohexane was achieved, with a binding selectivity of up to 41 for (<i>S</i>)-<b>1</b> over (<i>R</i>)-<b>1</b>. In addition, kinetic resolution of <b>1</b> through enantioselective N-acylation was accomplished with an enantiomeric excess of up to 91%