The purpose of this study was to use the Eccles’ expectancy-value model of choice as a framework to examine university students’ expectancy beliefs and task values in exergaming systems compared to those in physical education activities. Two hundred and thirty two first-year undergraduate students at the Democritus University of Thrace completed questionnaires assessing their expectancy-related...

This paper aims 1) to introduce the notion of theoretical story as a resource and source of constraint for the construction and assessment of models of phenomena; 2) to show the relevance of this notion for a better understanding of the role and nature of values in scientific activity. The reflection on the role of values and value judgments in scientific activity should be attentive, I will ar...

The increasing availability of SPECT/CT devices with advanced technology offers the opportunity for the accurate assessment of the radiation dose to the biological target volume during radionuclide therapy. Voxel dosimetry can be performed employing direct Monte Carlo radiation transport simulations, based on both morphological and functional images of the patient. On the other hand, for voxel ...

Nucleosynthesis in classical novae on oxygen-neon white dwarfs is sensitive to the poorly constrained thermonuclear rate of the P(p,γ)S reaction. In order to improve this situation, a variety of experiments have been performed over the past decade to determine the properties of proton unbound S levels up to an excitation energy of ≈ 6.7 MeV. Inconsistencies in the energies and J values for thes...

where p (> 3) is a rational prime such that p ≡ 3 (mod 4) and p ≡ 1 (mod 4), respectively ; ( p ) is the Legendre symbol and h(−p) is the class number of the quadratic field Q( √−p). The formulas are apparently related to the Dirichlet L-values at s = 1. To get a typical elliptic Gauss sum, we have only to replace the Legendre symbol by the cubic or the quartic residue character, and the trigon...

Serum carcinoembryonic antigen (s-CEA) is used to detect recurrence and predict prognosis in colorectal cancer. However, the cutoff values of s-CEA for prognosis have not been determined. We therefore tried to determine the preoperative s-CEA levels predictive of survivals in colorectal cancer patients. We retrospectively analyzed the medical records of 989 patients who underwent curative resec...

Using plasma glutathione S-transferase measurements hepatocellular integrity was assessed in groups of hyperthyroid and hypothyroid patients before and after treatment. Ten of 14 hyperthyroid patients had clearly raised plasma glutathione S-transferase values at presentation and in each patient treatment with either iodine-131 or carbimazole resulted in a significant fall in glutathione S-trans...

Fig. 1B shows the opposite, with a mean bias of ϩ14.5% and a scatter of ϩ10 to ϩ 100% higher values in seven samples having a cTnI value of ϳ1.0 ␮g/L, the clinically most important concentrations. Perhaps the authors inverted the factors (plasma Ϫ serum values in the text and serum Ϫ plasma values in the figure), but they did so without any reason, and this fact markedly clouds the data present...

Recent results of Zlobin and Cresson-Fischler-Rivoal allow one to decompose any suitable p-uple series of hypergeometric type into a linear combination (over the rationals) of multiple zeta values of depth at most p; in some cases, only the multiple zeta values with 2's and 3's are involved (as in Hoffman's conjecture). In this text, we study the depth p part of this linear combination, namely ...

In this paper, we study explicit and theoretical bounds for several interesting quantities in number theory, conditionally on the Generalized Riemann Hypothesis. Specifically, we improve the existing explicit bounds for the least quadratic non-residue and the least prime in an arithmetic progression. We also refine the classical conditional bounds of Littlewood for L-functions at s = 1. In part...