1550-7998=20 We have performed a global analysis of muon decay measurements to establish model-independent limits on the space-time structure of the muon decay matrix element. We find limits on the scalar, vector, and tensor coupling of rightand left-handed muons to rightand left-handed electrons. The limits on those terms that involve the decay of right-handed muons to left-handed electrons ar...

Multiplicative preconditioning is a popular tool for handling linear systems of equations provided the relevant information about the associated singular values is available. We propose using additive preconditioners, which are readily available for both general and structured ill conditioned input matrices and which preserve matrix structure. We introduce primal and dual additive preconditioni...

he change in the postal sector over the past 20 years and in particular the are transforming the postal services industries such as institutional, market and ents. Taking the argument from here this paper defines the four major response erators all across the world to analyse how different firms and countries are enges of increased competition and changing consumer behaviour, also in ing libera...

Feeding experiments were conducted quantitatively to examine the breakdown of mineral grains by earthworm, Eisenia feida, and larva of beetle, Protaetia lugubris insperata. Crushed and sieved test minerals of K-feldspar and/or quartz were mixed with artificial humus that contained no mineral grains. The mixture was fed to the soil animals in the plastic containers. After 1-, 4and 7-day experime...

During investigations of an inundated opencast sulphur mine (an open, deep water habitat with a relatively small littoral area) only five species of breeding water birds were recorded. The density of breeding great crested grebes Podiceps cristatus was relatively high (c. 1.0-1.1 pairs 10 ha of water, and 1.6-1.8 pairs ha of the macrophyte area) although fish density was very low. High water tr...

We tested if distinct combinations of harmonious passion and obsessive for sport were associated with outcomes within sport, academics, in one’s life. analysed data from the Student-athlete Well-being Achievement Project (SWAP), a study which intercollegiate student-athletes (N = 298) completed assessments at start season, performance, experiences, satisfaction life end season. Results showed t...

Sheila Jasanoff ,man William A. Lester Jr. Simon A. Levin Marcia C. Linn Michael J. Novacek Anna C. Roosevelt Jean E. Taylor Nancy S. Wexler William T. Golden Treasurer Richard S. Nicholson Executive Officer * SCIENCE (ISSN 0036-8075) is published weekly on Friday, except the last week in December, by the American Association for the Advancement of Science, 1200 New York Avenue, NW, Washington,...

BACKGROUND Few studies have investigated the clinical characteristics of patients with glottic cancer without hoarseness. METHODS This retrospective clinical study investigated 371 patients with glottic cancer. RESULTS Thirty-two of the 371 patients (8.6%) with glottic cancer first presented to hospitals with complaints other than hoarseness. Although proportions of stage I and T1 disease w...

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