FUNCTIONS OF EACH LOWER LIMB SEGMENTS DURING REBOUND JUMPING TAKEOFF

The objective of this study was to examine the functions of various leg components during takeoff in rebound jumping in terms of the relative impulse and accelerabon force of each leg component The test subjects were 23 male student athletes. The experimental attempts consisted of hnno sets of tive consecutive rebound jumps, where the subjective degree of efibrt varied among six levels, loo%, 90%, 80%, 60%, 45%, and 30%, which were applied in rand om order. The focus was on the relative jump height in the derived junp height results. The funetion of the leg mpbnents during rebund jumping was examined, and the attempts involving relative jump heights near 60%, 70%, 80%, 90%, and 100% were analyzed. The resub s W dth at during rebaund jumping takeoffs, the foot mttibuted significantly to achieving the jump height. The foot was responsible for accelerating the upper body in the initial stage of takeoff, whereas that role was taken over by the leg in the middle, and in the second half of the process, the foot once again assumed that role, irrespedrve of the relative jump heigh

Practical Applications of Microsatellite Markers in Goat Breeding

To date, the genetic loci associated with disease and economic traits have been identified in livestock based on linkage analysis or genome-wide association studies. These analyses require the use of numerous genetic markers, of which microsatellites have been utilized most extensively because they allow for the easy genotyping of allelic variation at each locus using PCR. In the domestic goat (Capra hircus), microsatellite markers are powerful tools for various genetic studies, such as the estimation of intra- and interpopulation genetic diversity, linkage analyses of phenotypic traits, and marker-assisted selection of favorable phenotypes; however, the studies on goats are less extensive than those on other major livestock. The aim of this chapter is to summarize the currently available information on goat breeding using microsatellite markers. In particular, we use various studies, including our own recent work, to illustrate how these markers may be used to identify phenotypic traits

DIFFERENT POWER AND MUSCULAR ACTMTtES OF THE LOWER UMBS IN THE REBOUND JUMP

The purpose of this study is to clarify the differences in myoelectric activities and power exerting the lower limbs of the performance that is jumping height is high and low people in the rebound jump. The subjects was 23 male students belong to track and field (age : 20.8 i 0.9 years, height : 179.6 * 6.1 an, and body mass : 82.3 * 17.0 kg). The subjects performed five-repeated rebound jump (5RJ), based on the jumping height of the result, divided into jumping high-high group (GOOD) and the low group (POOR), it was compared with the lower limbs joint power and myoelectric activity. As a result, fi was dearly that differences in the performance of GOOD and POOR has become the appropriate preliminary motion that was preactiviation of the lower limbs muscles in the before foot contact and due to the quick action in take off of the first half

Probable detection of an eruptive filament from a superflare on a solar-type star

太陽型星のスーパーフレアから噴出する巨大フィラメントを初検出 --昔の、そして今の惑星環境や文明に与える脅威--. 京都大学プレスリリース. 2021-12-10.Solar flares are often accompanied by filament/prominence eruptions (~10⁴ K and ~10¹⁰⁻¹¹ cm⁻³), sometimes leading to coronal mass ejections that directly affect the Earth’s environment. ‘Superflares’ are found on some active solar-type (G-type main-sequence) stars, but the filament eruption–coronal mass ejection association has not been established. Here we show that our optical spectroscopic observation of the young solar-type star EK Draconis reveals evidence for a stellar filament eruption associated with a superflare. This superflare emitted a radiated energy of 2.0 × 10³³ erg, and a blueshifted hydrogen absorption component with a high velocity of −510 km s⁻¹ was observed shortly afterwards. The temporal changes in the spectra strongly resemble those of solar filament eruptions. Comparing this eruption with solar filament eruptions in terms of the length scale and velocity strongly suggests that a stellar coronal mass ejection occurred. The erupted filament mass of 1.1 × 10¹⁸ g is ten times larger than those of the largest solar coronal mass ejections. The massive filament eruption and an associated coronal mass ejection provide the opportunity to evaluate how they affect the environment of young exoplanets/the young Earth6 and stellar mass/angular momentum evolution

Evidence for Direct CP Violation in B0 -> K+- pi-+ Decays

We report evidence for direct CP violation in the decay B0 -> K+-pi-+ with 253/fb of data collected with the Belle detector at the KEKB e+e- collider. Using 275 million B B_bar pairs we observe a B -> K+-pi-+ signal with 2140+-53 events. The measured CP violating asymmetry is Acp(K+-pi-+) = -0.101+-0.025 (stat)+-0.005 (syst), corresponding to a significance of 3.9 sigma including systematics. We also search for CP violation in the decays B+- -> K+-pi0 and B+- -> pi+-pi0. The measured CP violating asymmetries are Acp(K+-pi0) = 0.04+-0.05(stat)+-0.02(syst) and Acp(pi+-pi0) = -0.02+-0.10(stat)+-0.01(syst), corresponding to the intervals -0.05 < Acp(K+-pi0) < 0.13 and -0.18<Acp(pi+-pi0)<0.14 at 90% confidence level.Comment: 9 pages, 3 figures. submitted to Physical Review Letter

Modified Bentall operation with bioprosthetic valve and Valsalva graft conduit:the "slit skirt" technique

We elucidated the efficacy of the slit skirt technique to prevent bleeding from the proximal anastomosis between the graft and aortic annulus. Between September 2008 and September 2014, 15 patients underwent a modified Bentall operation with the slit skirt technique at our institution. No patients had bleeding from the proximal anastomosis. No re-thoracotomy for bleeding was required. During midterm follow-up (median period, 21 months), no patient had pseudoaneurysms at the proximal suture line. We conclude that the slit skirt technique is useful to prevent bleeding from the proximal anastomosis after the Bentall operation

Evidence for direct CP violation in B-0 -> K+pi(-) decays

We report evidence for direct CP violation in the decay B-0-->K(+)pi(-) with 253 fb(-1) of data collected with the Belle detector at the KEKB e(+)e(-) collider. Using 275x10(6) B(B) over bar pairs we observe a B-->K(+/-)pi(-/+) signal with 2140+/-53 events. The measured CP violating asymmetry is A(CP)(K(+)pi(-))=-0.101+/-0.025(stat)+/-0.005(syst), corresponding to a significance of 3.9sigma including systematics. We also search for CP violation in the decays B+-->K(+)pi(0) and B+-->pi(+)pi(0). The measured CP violating asymmetries are A(CP)(K(+)pi(0))=0.04+/-0.05(stat)+/-0.02(syst) and A(CP)(pi(+)pi(0))=-0.02+/-0.10(stat)+/-0.01(syst), corresponding to the intervals -0.05< A(CP)(K(+)pi(0))<0.13 and -0.18< A(CP)(pi(+)pi(0))<0.14 at 90% confidence level