Results 251 to 260 of about 13,432,161 (307)

Beta1 subunits enable fentanyl‐induced BK channel activation and opioid regulation of cerebral artery diameter

open access: yesFEBS Open Bio, EarlyView.
During the current opioid crisis, the majority of overdose deaths are attributed to ultra‐potent synthetic opioids, such as fentanyl. While fentanyl exerts its action via opioid receptors, we propose that potassium channels in the brain blood vessels may also sense fentanyl.
Shiwani Thapa   +4 more
wiley   +1 more source

In vitro generation of regulatory T cells: A challenging tool for studying immune aging in humans

open access: yesFEBS Open Bio, EarlyView.
In vitro induction of human regulatory T cells using standard protocols generates suppressive, Foxp3‐expressing CD4+ T cells independently of TGF‐β supplementation and donor age. Regulatory T (Treg) cells play a key role in immune tolerance and homeostasis.
Lynn Muller   +3 more
wiley   +1 more source

THE SUBJECTIVE THEORY OF VALUE AND THEORIES OF THE VALUE OF MONEY

open access: yesTHE SUBJECTIVE THEORY OF VALUE AND THEORIES OF THE VALUE OF MONEY
openaire   +1 more source
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A Theory of the Value of Grandchildren

Rationality and Society, 2008
As innovations in medical technology extend average longevity, grandparents become increasingly present during the lives of their grandchildren. We propose a theory that seeks to explain differential investment in grandchildren. The theory relies on a fundamental assumption of uncertainty reduction to explain why grandparents in post-industrial ...
Debra Friedman   +2 more
openaire   +1 more source

Theory of dependence values

ACM Transactions on Database Systems, 2000
A new model to evaluate dependencies in data mining problems is presented and discussed. The well-known concept of the association rule is replaced by the new definition of dependence value, which is a single real number uniquely associated with a given itemset.
openaire   +2 more sources

A Theory of the Value of Data

2023
<div> This paper presents a model for the value of data as a function of the number of ob- </div> <div> servations and covariates. The analysis identifies diseconomies of scale (concavity in </div> <div> the number of observations) and economies of scope (convexity in the number of co- </div> <div> variates)
openaire   +1 more source

Theory of Values [PDF]

open access: possible, 2009
Economists have a well-developed theory of value but the theory of why people hold the values they do is rudimentary at best. In spite of the fact that it is common to argue that values are important, most work on values is normative and the positive theory of values is relatively under- developed.
Andreas Georgiadis, Alan Manning
openaire   +1 more source

THE THEORY OF VALUE RECONSIDERED

Australian Economic Papers, 1969
This chapter discusses the theory of value reconsidered. Prices are the surface phenomena in economic life. Every school of economic theory was obliged to give some account of the determination of prices, but each school was concerned with wider questions; a theory of value was incidental to a general view of how the economic system operates. The price
openaire   +1 more source

Theories of Interregional Trade and Theories of Value [PDF]

open access: possibleEnvironment and Planning A: Economy and Space, 1985
In this paper the Heckscher-Ohlin-Samuelson trade theory, Emmanuel's theory of unequal exchange, and a trade theory based upon the work of Piero Sraffa are examined within the context of interregional trade. It is argued that a suitable criterion for judging between these three trade theories is their underlying value theory.
openaire   +1 more source

An entropy theory of value

Structural Change and Economic Dynamics, 2002
More than half century ago, Shannon's identification of information as the reduction of entropy greatly clarified the meaning of information and established information theory as a science. Since all human activities represent extraction and transformation of low entropy from the environment, it is natural to relate economic value to low entropy ...
openaire   +1 more source

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