The Incidence of Various Antiphospholipid Antibodies, Measured by Commercial-Based Laboratory, with Recurrent Spontenous Abortion and the Impact of Their Profiles on Reproductive Outcome with Active Anticoagulant Therapy

Objective. To investigate the incidence of various antiphospholipid antibodies (aPLs), measured by commercial-based laboratory, with recurrent spontaneous abortion (RSA) patients and the impact of the species, isotype, titer, and number of positive aPLs on reproductive outcome in Japanese. Method. In this retrospective cohort study, 263 patients with RSA without possible causes were investigated. Of 131 patients with one or more positive aPL, 82 pregnant women under anticoagulant therapy were evaluated. Results. The incidence of various aPLs was almost consistent with previous report. Overall, successful pregnancy rate with anticoagulant therapy was 91.4% regardless of aPL profiles. There was no significant difference in the pregnancy maintenance rate between IgG and IgM groups or single positive and multiple positive groups, but there was a tendency for the rate with aspirin to be lower than with aspirin plus heparin in IgG group. Conclusion. aPL profile did not affect the pregnancy maintenance rate when anticoagulant therapy was actively introduced, however in IgG group, we recommend combination therapy with aspirin and heparin

Transverse Galvanomagnetic Effect of Bismuth Single Crystal in a Strong Magnetic Field

Transverse galvanomagnetic effects of bismuth single crystal are measured in a strong magnetic field up to about 100 kilo Oersted at 4.2, 3.0 and 1.8K. And the twelve components of the galvanomagnetic tensor are obtained with respect to the magnetic field dependence. Furthermore the behaviors of the galvanomagnetic tensor components near the quantum limit of the magnetic quantization are studied, expecting that they can lend themselves to analyse the energy band structure. In a strong magnetic field, the amplitudes of the oscillatory part of the galvanomagnetic tensors are nearly temperature independent, and the behaviors of Hall effect appear to be different from the expected one from the classical theory of the two bands model

Crystallographic Anisotropy of Galvanomagnetic Effects in Antimony Single Crystals

Twelve components of the galvanomagnetic tensor in antimony single crystals are measured in a magnetic field up to 10 kilo-oersted at 4.2°and 20.4°K. The complicated results with regard to the anisotropy of the transverse magnetoresistance are understood by the tilted ellipsoidal model for Fermi surface of electron, and both of the anisotropy of the transverse magnetoresistance and the positive Hall voltage are explained on the assumption of the existence of a very light hole

EFFECT OF DIFFERENT TRACK START POSITiONS ON HORIZONTAL TAKE-OFF VELOCITY OF WHOLE-SODY CENTER OF MASS IN SWIMMING: A SlMUALTION STUDY

The objective of this study was to investigate the effects of different track start positions on horizontal take-off velocity of the whole-body center of mass (COM) in swimming. The whole body was modeled as linked rigid-body segments to simulate the track start performance, and a simulation was performce with two different track start positions, with the COM positioned at the rear and low level (RL), and at the front and high level (FH). The results demonstrated that the horizontal take-off velocity was faster for the RL than the FH. The hip joint moments were larger for the RL than the FH on both front and rear legs. Therefore, the COM positioned at the rear and lower level for the track start would contribute to a greater hip joint moment generation, producing a greater horizontal velocity of the COM at take-off

THE RELATIONSHIP BETWEEN TRUNK KINEMATIC VARIABLES AND UNDERWATER UNDULATORY SWIMMING PERFORMANCE IN COMPETITIVE SWIMMERS

The purpose of this study was to examine the relationship between selected trunk kinematic variables and undulatory underwater swimming performance in competitive swimmers. Eight male and 2 female swimmers performed 15 m UUS with their maximum efforts. Three-dimensional coordinate of markers attached to bony configurations were corrected during Pearson’s product moment by using the underwater motion capture system. The range of motion and the corresponding angular velocity were computed for lower waist, upper waist and chest. The relationship between horizontal velocity of center of mass and each kinematic variable was then examined. No significant correlations were found between horizontal velocity and each range of motion. The horizontal velocity was significantly correlate with the angular velocity of lower waist and of chest, but not with the corresponding value of upper waist. The current results suggest that the swimmers produce the great horizontal velocity by increase in trunk angular velocities rather than by increase in trunk range of motion

Impact of neoadjuvant chemotherapy on physical fitness, physical activity, and health-related quality of life of patients with resectable esophageal cancer.

Neoadjuvant chemotherapy (NAC) followed by radical surgery is the standard treatment for patients with resectable esophageal squamous cell carcinoma (ESCC) in Japan. However, some adverse events associated with NAC may result in a decrease in physical fitness that may influence the patient's ability to tolerate surgery. The purpose of this study was to evaluate the impact of NAC on physical fitness, physical activity, and health-related quality of life (HRQOL) of patients with ESCC

The developmental feature of the sleep problems in adolescence : The approach for the application to educational stage

To clarify the actual feature of the sleep problems in adolescence from the points of view sleep loss, circadian rhythm, and development, the survey for five years was performed on 523 students in a College of Technology. The survey results were analyzed in regard to the Sleep Habits Scales and the Life Habits Scales. These scales were (1) Long sleeper-Short sleeper, (2) Good sleeper-Poor sleeper, (3) Sleep phase advanced type-Sleep phase delayed type, (4) Morningness-Eveningness, (5) Regnlar sleeper-Irregular sleeper, (6) Sleep satisfaction type-Sleep dissatisfaction type. Sleep length was shortened with advancements in grade. The irregularity and the delay of sleep phase increased with advancements in grade. Furthermore, approximately 5-10 percents of each grade student were screened as the persons who had some sleep disturbances or sleep problems. The present results suggest that the sleep problems (irregularity and phase delay) of adolescence apt to increase with advancements in grade

Phase-resolved measurement and control of ultrafast dynamics in terahertz electronic oscillators

半導体テラヘルツ発振器の超高速振動ダイナミクスの計測と制御に成功 --次世代無線通信やセンシングの高機能化へ--. 京都大学プレスリリース. 2024-07-03.As a key component for next-generation wireless communications (6 G and beyond), terahertz (THz) electronic oscillators are being actively developed. Precise and dynamic phase control of ultrafast THz waveforms is essential for high-speed beam steering and high-capacity data transmission. However, measurement and control of such ultrafast dynamic process is beyond the scope of electronics due to the limited bandwidth of the electronic equipment. Here we surpass this limit by applying photonic technology. Using a femtosecond laser, we generate offset-free THz pulses to phase-lock the electronic oscillators based on resonant tunneling diode. This enables us to perform phase-resolved measurement of the emitted THz electric field waveform in time-domain with sub-cycle time resolution. Ultrafast dynamic response such as anti-phase locking behaviour is observed, which is distinct from in-phase stimulated emission observed in laser oscillators. We also show that the dynamics follows the universal synchronization theory for limit cycle oscillators. This provides a basic guideline for dynamic phase control of THz electronic oscillators, enabling many key performance indicators to be achieved in the new era of 6 G and beyond

Infrared Absorption and Faraday Effect in PbTe and PbSe

Free carrier absorption and Faraday effect in p-type PbSe, n- and p-type PbTe were measured in the wavelength range from 3 to 15 microns at room temperatures. The effective masses of electrons for PbTe and of holes for PbSe were deduced to be 0.11 m_0 and 0.14 m_0, respectively, and the ratios of the longitudinal to the transverse masses associated with the ellipsoidal energy surfaces were evaluated. It was concluded that four equivalent extrema exist along directions on the hole energy surface of PbSe, and this result is consistent with the similarity between the absorption characteristics of p-type PbSe and that of n-type PbTe