Characterizing the metabolic intensity and cardiovascular demands of walking football in Southeast Asian women

Given that the recent rise in obesity rates throughout Southeast Asia is disproportionately driven by women, part of the regional solution may be to encourage more habitual physical activity within this population. Taking advantage of the regional popularity of walking football, this study sought to characterize the cardiovascular demands and metabolic intensity of Southeast Asian women competing in walking football matches to determine the sports’ suitability for promoting physical health. It was hypothesized that both cardiovascular and metabolic intensity measures (≥65% HR% and ≥3.0 METs, respectively) would meet or exceed established thresholds for improving fitness and health. Methods: Women’s teams from Singapore (Mean±SD: 42±11 yrs age; 29.2±7.0 kg/m2 BMI; n=14) and Malaysia (40±10 yrs age; 32.9±5.7 kg/m2 BMI; n=8) competed in two successive matches within a single day during which measures of heart rate (HR) and GPS (from portable handheld device) were recorded for each player, while relative HR was computed as a percent of each player’s age-predicted maximal HR (HR%, %). The GPS data were later converted to walking distance and metabolic intensity (i.e., metabolic equivalents, or METs). One-sample t-tests at the 0.05 alpha level were used to compare variables to their respective thresholds. Results: Both Malaysian and Singaporean teams had mean relative HRs (91-95% of HRMAX [P=0.008] versus 77-80% of HRMAX [

Measurement of the Permanent Electric Dipole Moment of the 129^{129}Xe Atom

We report on a new measurement of the CP-violating permanent Electric Dipole Moment (EDM) of the neutral $^{129}$Xe atom. Our experimental approach is based on the detection of the free precession of co-located nuclear spin-polarized $^3$He and $^{129}$Xe samples. The EDM measurement sensitivity benefits strongly from long spin coherence times of several hours achieved in diluted gases and homogeneous weak magnetic fields of about 400~nT. A finite EDM is indicated by a change in the precession frequency, as an electric field is periodically reversed with respect to the magnetic guiding field. Our result, $\left(-4.7\pm6.4\right)\cdot 10^{-28}$ ecm, is consistent with zero and is used to place a new upper limit on the $^{129}$Xe EDM: $|d_\text{Xe}|<1.5 \cdot 10^{-27}$ ecm (95% C.L.). We also discuss the implications of this result for various CP-violating observables as they relate to theories of physics beyond the standard model

Fusion von Sensordaten zur Detektion von C- und N-Gehalten im Oberboden

Ziel: Die Studie untersucht die Kombination von Sensordaten (scheinbare elektrische Leitfähigkeit ECa gemessen mit EM38 und EM38-MK2 (1) sowie mit vis-NIR-Spektrometer (passives Spektrometer (bis 1700 nm) und Activ Flash Spectrometer (AFS, bis 1000 nm) des PhenoTrac4 (2) , beide mit Bildung verschiedener Indizes) zur flächigen Vorhersage von Corg, Ccarb, Ct und Nt auf einem Acker im ehemaligen Überflutungsgebiet der Isar (Mergel- im Wechsel mit sehr humosen Schichten über kalkhaltigem Schotter: Oberboden 9,36 % Ct, Ccarb: 5,96 %, Corg: 3.4, Nt: 0,41%). Methode: Schleppergestützte Messung der Fläche mit den genannten Sensoren. Beprobung von 45 Punkten mit anschließender Analyse der genannten Zielvariablen. Neben den Sensorwerten wurden auch die Gauß-Krüger-Koordinaten sowie die Entfernung der Probenahmepunkte zur Feldgrenze als Prädiktoren eingeführt. Auf die Verwendung von topographischen Parametern wurde verzichtet, da die rd. 2 ha große Fläche nahezu eben ist. Zur statistischen Vorhersage wurde Support Vector Machine Regressionen gerechnet. Ergebnis: Die Zielvariablen lassen sich mit Bestimmtheitsmaßen von 0,79-0,81 und RMSE-Beträgen von 0,01- 0,28 % abbilden. Dabei sind die bestimmenden Prädiktorvariablen bei Ct und Corg hauptsächlich die Nord-Süd-Ausdehnung, die Entfernung zur Feldgrenze, ECa-h sowie Reflexionswerte bei Wellenlängen um 1000 nm (AFS). Bei Ccarb und Nt treten die Nord-Süd-Ausdehnung zurück und Reflexionswerte von 400-600 kommen hinzu. Schlussfolgerung: Diese und andere unserer Studien haben folgendes aufgezeigt: - Die beschriebene Sensorkombination erhöht die Genauigkeit und auch die Reproduzierbarkeit der Messungen. - Die Einbeziehung von stetigen Variablen wie Koordinaten und auch topographischen Beschreibungen steigern die Komplexität und stabilisieren gleichzeitig die Berechnungen. - Während die ECa-Messungen weitestgehend standardisiert sind, fehlen derartige standardisierte Vorgehensweisen bei Reflexionsmessungen

Opportunities for Nuclear Astrophysics at FRANZ

The "Frankfurter Neutronenquelle am Stern-Gerlach-Zentrum" (FRANZ), which is currently under development, will be the strongest neutron source in the astrophysically interesting energy region in the world. It will be about three orders of magnitude more intense than the well-established neutron source at the Research Center Karlsruhe (FZK)

Test of Lorentz Symmetry by using a 3He/129Xe Co-Magnetometer

To test Lorentz symmetry we used a 3He/129Xe co-magnetometer. We will give a short summary of our experimental setup and the results of our latest measurements. We obtained preliminary results for the equatorial component of the background field interacting with the spin of the bound neutron: b_n < 3.72 x 10^(-32) GeV (95 C.L.).Comment: Presented at the Fifth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 28 - July 2, 201

Precise Measurement of Magnetic Field Gradients from Free Spin Precession Signals of 3^{3}He and 129^{129}Xe Magnetometers

We report on precise measurements of magnetic field gradients extracted from transverse relaxation rates of precessing spin samples. The experimental approach is based on the free precession of gaseous, nuclear spin polarized $^3$He and $^{129}$Xe atoms in a spherical cell inside a magnetic guiding field of about 400 nT using LT$_C$ SQUIDs as low-noise magnetic flux detectors. The transverse relaxation rates of both spin species are simultaneously monitored as magnetic field gradients are varied. For transverse relaxation times reaching 100 h, the residual longitudinal field gradient across the spin sample could be deduced to be$|\vec{\nabla}B_z|=(5.6 \pm 0.4)$ pT/cm. The method takes advantage of the high signal-to-noise ratio with which the decaying spin precession signal can be monitored that finally leads to the exceptional accuracy to determine magnetic field gradients at the sub pT/cm scale

Limit on Lorentz and CPT violation of the bound Neutron Using a Free Precession 3He/129Xe co-magnetometer

We report on the search for Lorentz violating sidereal variations of the frequency difference of co-located spin-species while the Earth and hence the laboratory reference frame rotates with respect to a relic background field. The co-magnetometer used is based on the detection of freely precessing nuclear spins from polarized 3He and 129Xe gas samples using SQUIDs as low-noise magnetic flux detectors. As result we can determine the limit for the equatorial component of the background field interacting with the spin of the bound neutron to be bn < 3.7 x 10^{-32} GeV (95 C.L.).Comment: 5 pages, 4 figure