Lateral position does not cause an interhemicerebral difference of cerebral hemodynamic in healthy adult volunteers.

Cerebral perfusion is maintained at a consistent value irrespective of changes in systemic blood pressure or disease-induced changes in general physical condition. This regulatory mechanism is effective despite postural changes, working even during changes in posture, such as those from sitting to standing or from the head-down to the head-up position. However, no study has addressed changes in perfusion separately in the left and right cerebral hemispheres, and there has been no specific investigation of the effect of the lateral decubitus position on perfusion in each hemisphere.

Anomalous photoluminescence of InAs surface quantum dots: intensity enhancement and strain control by underlying quantum dots.

Strain control and photoluminescence (PL) enhancement of InAs surface quantum dots (SQDs), exposed to ambient conditions, have been achieved by introducing underlying buried quantum dots (BQDs). The PL wavelength has been tuned from 1270 to as long as 1780 nm, redshifted as the size of the SQDs is reduced. This is in strong contrast to standard QDs, in which blueshift is observed from smaller QDs following basic quantum mechanics.

Control of hot-carrier relaxation for realizing ideal quantum-dot intermediate-band solar cells.

For intermediate-band solar cells, the broad absorption spectrum of quantum dots (QDs) offers a favorable conversion efficiency, and photocurrent generation via efficient two-step two-photon-absorption (TS-TPA) in QDs is essential for realizing high-performance solar cells. In the last decade, many works were dedicated to improve the TS-TPA efficiency by modifying the QD itself, however, the obtained results are far from the requirements for practical applications. To reveal the mechanisms behind the low TS-TPA efficiency in QDs, we report here on two- and three-beam photocurrent measurements of InAs quantum structures embedded in AlGaAs.

The clinical utility of genetic testing for t(8;16)(p11;p13) in congenital acute myeloid leukemia.

Acute myeloid leukemia (AML) with t(8;16)(p11;p13) is known to have very poor prognosis in adults. In contrast, the prognosis is not clear in pediatric patients and chemotherapy is generally started immediately in cases of congenital leukemia because of its association with hyperleukocytosis and poor prognosis. This study reports a case of congenital AML where chemotherapy was discontinued after detection of a MOZ-CBP fusion, which remains in remission without additional treatment.