Search results for "Relative"
showing 10 items of 1094 documents
Persistent currents in a circular array of Bose-Einstein condensates
2002
A ring-shaped array of Bose-Einstein condensed atomic gases can display circular currents if the relative phase of neighboring condensates becomes locked to certain values. It is shown that, irrespective of the mechanism responsible for generating these states, only a restricted set of currents are stable, depending on the number of condensates, on the interaction and tunneling energies, and on the total number of particles. Different instabilities due to quasiparticle excitations are characterized and possible experimental setups for testing the stability prediction are also discussed.
Evaluating the protecting effects of two consolidants applied on Pietra di Lecce limestone: A neutronographic study
2020
Abstract In this work a combined laboratory-based and neutronographic investigation was carried out on a type of limestone, known as Pietra di Lecce stone, widely used in Italian Baroque as construction material. The limestone was treated with two different commercially-available coatings, namely nanosilica and nanolime, and artificially weathered by salt crystallization and temperature/relative humidity jumps. The aim was to provide an experimental evidence of the protective and consolidating effectiveness of the two treatments by looking at the water absorption process occurring inside the pore network of the analyzed stones. The analysis of the wetting front position revealed significant…
Availability and consumption of alcoholic beverages: evidence from Finland
2009
The study examines the consumption of alcoholic beverages in Finland over the period 1960 to 2004. Consumption is explained by its own real price, relative prices, expenditure and variables measuring the availability of alcohol. The empirical analysis utilizes information on linkages across different beverages and uses co-integration techniques. The study finds that changes in the availability of alcohol, typically related to institutional changes, have played an important role in determining consumption, especially of beer.
Frank H. Knight on social values in economic consumption: an archival note
2020
We reproduce an unpublished address on “Social Values in Economic Consumption” which Knight prepared for a SSRC Conference in June 1931. This material sheds new light on Knight in two respects. First, anticipating what is known as the relative income hypothesis, Knight indicated that a general increase in income, not only leaves the individual’s relative position in society unaltered but makes her/his situation worse off due to the peculiar characteristics of the market for “personal services.” Second, this address provides further evidence of how, in spite of some substantial methodological differences, Knight’s research interests converged with those of the institutionalists.
Frank H. Knight on Social Values in Economic Consumption. An Archival Note
2020
This note reproduces an unpublished paper on "Social Values in Economic Consumption" which Knight prepared for the Social Science Research Council (SSRC) Summer Conference, on Nantucket, Massachusetts in June 1931. This paper sheds new light on Knight in two important respects. First, it presents, in a more systematic fashion, Knight’s criticism of what he perceived to be the then standard theory of consumption. Specifically, Knight argued that an individual's consumption is dictated more by his income in relation to others than by mere utility maximization — a notion now commonly known as relative income hypothesis. In this connection, Knight also pointed out that a general increase in inc…
III: „Relatives Risiko” und „NNT” - anschauliche Maße für binäre Daten
2002
Description of categorial data can often be based on contingency tables. However, percentages appearing in such tables must be meaningful: For most applications, it may be useful to employ factors of causal influence as the row entry variable and relate percentages to sub-groups defined by these row entries ("row percentages"). The comparison of success frequencies (i. e. binary information on "therapy success yes/no") may be based on two therapies, respective success frequencies and their ratio, the relative risk. In addition the success frequencies' difference, the absolute (or excess) risk, can be transformed into the "number needed to treat" (NNT). Many international journals demand thi…
On Boundary Conditions for Wedge Operators on Radial Sets
2008
We present a theorem about calculation of fixed point index for k-$\psi$-contractive operators with 0 < k <1 defined on a radial set of a wedge of an infinite dimensional Banach space. Then results on the existence of eigenvectors and nonzero fixed points are obtained.
Long-lived contrails and convective cirrus above the tropical tropopause
2017
Abstract. This study has two objectives: (1) it characterizes contrails at very low temperatures and (2) it discusses convective cirrus in which the contrails occurred. (1) Long-lived contrails and cirrus from overshooting convection are investigated above the tropical tropopause at low temperatures down to −88 °C from measurements with the Russian high-altitude research aircraft M-55 Geophysica, as well as related observations during the SCOUT-O3 field experiment near Darwin, Australia, in 2005. A contrail was observed to persist below ice saturation at low temperatures and low turbulence in the stratosphere for nearly 1 h. The contrail occurred downwind of the decaying convective system H…
A New Approach To The Identification Of Cognitive Conflicts In The Repertory Grid: An Illustrative Case Study
1992
Abstract The concept of cognitive conflicts and its relation to the success of psychoanalytically oriented psychotherapy are discussed. According to this model of therapy, patients should achieve insight into their conscious as well as unconscious conflicts. Therefore in the present study we assumed that demonstrable cognitive changes would occur over treatment for chronic pain, as measured by Kelly's (1955) Repertory Grid Test. Grids were analyzed with regard to conflicts on the basis of the concept of unbalanced triads. A triad may be described as unbalanced when logical inconsistencies can be demonstrated on the basis of a correlative comparison of three corresponding construct pairs. Co…
Taxonomic flux as a measure of evolutionary turnover
2021
We introduce a new metric, "taxonomic flux", to quantify evolutionary trends both within and across taxonomic boundaries. This metric is normalized, which reduces the effect of sample size disparity between biologic groups and time intervals. Furthermore, this methodology considers stratigraphic range data as a whole, and measures relative growth or decline of diversity values as they deviate from system stability. Such trends may yield key information relating to evolutionary processes and forcing functions, especially if these trends are correlative within particular taxa or niche occupancy. Thus far, scientists and researchers have been stymied by absolute values derived from unequal dat…