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partenza sono di solito parole che denotano piccole entità (perciò detti minimizers , in italiano minimizzatori o anche quantificatori minimali 24 ); la loro presenza in contesti negativi porta ad estendere la negazione verbale ad elementi in posizione di

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required to minimize harms related to use of loot boxes in the Finnish context. Given that the group was newly-established, and exploratory approach was adopted in order to build knowledge of the issue, accordingly an initial two-stage approach to data

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Expanding on the multidisciplinary stakeholder framework to minimize harms for problematic risk-taking involving emerging technologies

Commentary on: Problematic risk-taking involving emerging technologies: A stakeholder framework to minimize harms (Swanton et al., 2019)

Journal of Behavioral Addictions
Authors:
Jing Shi
,
Mark van der Maas
,
Nigel E. Turner
, and
Marc N. Potenza

Introduction Swanton, Blaszczynski, Forlini, Starcevic, and Gainsbury (2019a) proposed a multidisciplinary framework that describes stakeholders' responsibilities in minimizing harms from problematic risk-taking behaviors involving emerging

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We consider the minimization problem of φ-divergences between a given probability measure P and subsets Ω of the vector space M F of all signed measures which integrate a given class F of bounded or unbounded measurable functions. The vector space M F is endowed with the weak topology induced by the class F ∪ B b where B b is the class of all bounded measurable functions. We treat the problems of existence and characterization of the φ-projections of P on Ω. We also consider the dual equality and the dual attainment problems when Ω is defined by linear constraints.

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Journal of Radioanalytical and Nuclear Chemistry
Authors:
W. Taylor
,
D. Jamriska
,
V. Hamilton
,
R. Heaton
,
D. Phillips
,
R. Staroski
,
J. Garcia
, and
M. Ott

Abstract  

Since the mid-1970s the Los Alamos Medical Radioisotope Program has been irradiating target materials to produce and recover radioisotopes for applications in medicine, environmental science, biology, physics, materials research, and other disciplines where radiotracers find utility. By necessity, the chemical processing of targets and the isolation of radioisotopes generates radioactive waste materials. In recent years there have been federal mandates requiring us to discontinue the use of hazardous materials and to minimize radioactive waste volumes. As a result, substantial waste reduction measures have been introduced at the irradiation facility, in processing approaches, and even in the ways the product isotopes are supplied to users.

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Abstract  

Interferences in uranium oxidation states due to iron during acid dissolution of solid samples were studied. Hydrazine and different carboxylic acids were investigated for their suitability to minimize these interferences. Polyacrylic acid (PAA) was selected for further testing with common iron-containing minerals, pyrite and biotite. The interfering effect of iron decreased with increasing PAA concentration; 2.5% acid concentration was observed to be a suitable level to minimize interferences due to the iron-containing minerals. PAA and polyacrylic-co-maleic acid (PAMA) were tested for their effect on goethite. The oxidation of uranium by goethite was not supressed with the acids but further a slight oxidation was observed. Further experiments are required to find a suitable redox buffer for goethite and iron minerals. However, the promising results for pyrite and biotite widen the range of solid materials that can be considered suitable for the determination of uranium oxidation states.

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Abstract  

The problem of minimizing
\documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $$F(X) = \Sigma ||A_i^T X - B_i ||_2$$ \end{document}
is considered. The subdifferential ofF(X) is computed for anyX and, as a consequence, the necessary and sufficient optimality conditions are stated in a more general form than the ones up to now known.
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Abstract  

The optimum irradiation, decay and counting times were calculated for single and double counting in the case of 3 isotopes. Two different minimization functions were considered. The results, presented in graphical form, make possible the estimation of the optimum times for the majority of practical cases. An important gain in sensitivity can be obtained by using a double counting technique.

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Journal of Behavioral Addictions
Authors:
Thomas B. Swanton
,
Alex Blaszczynski
,
Cynthia Forlini
,
Vladan Starcevic
, and
Sally M. Gainsbury

minimize harms. Adding to the complexity of this issue, the experience of harms in the context of problematic risk-taking behaviors may be due to comorbid mental disorders. The causal relationship between mental disorders and problematic risk-taking may not

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Abstract  

As part of the technical support CST-12 provides for a wide variety of defense and nondefense programs within Los Alamos National Laboratory (LANL) and the Department of Energy (DOE) complex, new waste minimization technique is under development for radiological volatile organic analysis (Hot VOA). Currently all Hot VOA must be run in a glovebox. Several types of samples contain TRU radiological waste in the form of particulates. By prefiltering the samples, through a 1.2 micron syringe and counting the radioactivity, it has been found that many of the samples can be analyzed outside of a glovebox. In the present investigation, the types of Hot VOA samples that can take advantage of this new technique, the volume and types of waste reduced, and the experimental parameters will be discussed. Overall, the radioactive waste generated is minimized.

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