Singular spectrum analysis, a technique to detect oscillations in short and noisy time series, was Ðrst developed for geophysical applications. This work o†ers a generalization for long and noisy time series in astrophysical applications. The motivating problem is the detection of low-amplitude solar oscillations. Subject headings : methods : data analysis È Sun: oscillations

Li2 Molecules Tout T. Wang,* Myoung-Sun Heo, Timur M. Rvachov, Dylan A. Cotta, and Wolfgang Ketterle MIT-Harvard Center for Ultracold Atoms, Research Laboratory of Electronics, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA Département de Physique, École Normale Supé...

The literature typically treats fertility decline in developing countries as an indicator of women’s status improvement, based on the assumption that women have greater decision making power on childbearing as their status improves. This paper investigates whether and how fertility decline leads to reduction in gender inequality and the improvement of women’s status in China. Based on the analy...

Following a request from the European Commission, the Panel on Dietetic Products, Nutrition and Allergies of the European Food Safety Authority (EFSA) was asked to deliver a scientific opinion on the safety of ‘fungal oil from Mortierella alpina’. The product, referred to as Fungal Oil SUN-TGA40S, is an arachidonic acid-rich oil obtained by fermentation from the fungus Mortierella alpina and is...

E-learning is an essential trend in education for the 21st century. Because the nature of e-learning is different from the traditional learning, an in-depth research on factors affecting e-learning would help instructors to improve their teaching effectiveness, and the results can also benefit e-learning players for their operation and management of cyber universities (digital schools). This st...

Two sequences of solar images obtained by the Transition Region and Coronal Explorer in three UV passbands are studied using wavelet and Fourier analysis and compared to the photospheric magnetic flux measured by the Michelson Doppler Interferometer on the Solar Heliospheric Observatory to study wave behaviour in differing magnetic environments. Wavelet periods show deviations from the theoreti...

Taking an alcohol swab of a person's forearm and analyzing it using a spectrophotometer has been shown to be a reliable method for detecting the presence of sunscreen. The aims of this study were to determine if moisturizing lotions or other non-sunscreen products influence the absorbance readings from skin swabs in a controlled setting, and to establish the cutoff point in determining the pres...

BACKGROUND Application of aminolevulinic acid (ALA) for photodynamic therapy induces significant sensitivity to visible light. OBJECTIVE To determine whether sunscreens containing inorganic agents are effective against sensitivity to blue light induced by ALA application. METHODS & MATERIALS Twenty subjects received application of ALA on the arm. Thirty minutes before blue light exposure, t...

Data obtained by the GONG and MDI instruments over the last seven years are used to study how solar dynamics — both rotation and other large scale flows — have changed with time. In addition to the well known phenomenon of bands of faster and slower rotation moving towards the equator and pole, we find that the zonal flow pattern rises upwards with time. Like the zonal flows, the meridional flo...

Error factors in the encoded sun sensor (ESS) are analyzed and simulated. Based on the analysis results, an ESS error compensation model containing structural errors and fine-code algorithm errors is established, and the corresponding calibration method for model parameters is proposed. As external parameters, installation deviation between ESS and calibration equipment are introduced to the ES...