Results 31 to 40 of about 39,063 (233)

A Refinement of Jensen's Discrete Inequality for Differentiable Convex Functions [PDF]

open access: yes, 2002
A refinement of Jensen’s discrete inequality and applications for the celebrated Arithmetic Mean – Geometric Mean – Harmonc Mean inequality and Cauchy-Schwartz-Bunikowski inequality are pointed ...
Dragomir, Sever S, Scarmozzino, F. P
core  

Bounds for the expected value of one-step processes [PDF]

open access: yes, 2015
Mean-field models are often used to approximate Markov processes with large state-spaces. One-step processes, also known as birth-death processes, are an important class of such processes and are processes with state space $\{0,1,\ldots,N\}$ and where ...
Armbruster, Benjamin   +2 more
core   +2 more sources

A pipeline crisis or a sustainability crisis? Local and national succession planning for headteachers in England

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Recruiting and retaining school leaders is a challenge in many systems worldwide. Previous research has identified three distinct ways in which succession planning can be conceptualised and approached: a ‘pipeline’ approach seeks to match supply and demand for the posts that need filling; a ‘pool’ strategy involves proactively identifying and ...
Toby Greany   +3 more
wiley   +1 more source

Another Converse of Jensen's Inequality [PDF]

open access: yes, 2009
We give the best possible global bounds for a form of discrete Jensen’s inequality.
Simic, Slavko
core  

Convergence and Equivalence results for the Jensen's inequality - Application to time-delay and sampled-data systems

open access: yes, 2011
The Jensen's inequality plays a crucial role in the analysis of time-delay and sampled-data systems. Its conservatism is studied through the use of the Gr\"{u}ss Inequality.
Briat, Corentin
core   +1 more source

If $B$ and $f(B)$ are Brownian motions, then $f$ is affine [PDF]

open access: yes, 2015
It is shown that if the processes $B$ and $f(B)$ are both Brownian motions (without a random time change) then $f$ must be an affine function. As a by-product of the proof, it is shown that the only functions which are solutions to both the Laplace ...
Tehranchi, Michael R.
core   +1 more source

What works in internal alternative provision? A salutogenic analysis

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Schools across England are setting up ‘internal alternative provision’ to meet the social, emotional and mental health needs of increasing numbers of pupils at risk of suspension, exclusion and absence. However, there is little guidance about what good practice looks like.
Emma Simpson
wiley   +1 more source

The Impact of Acquisition Intensity on ESG Performance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates the impact of Acquisition Intensity on ESG performance using a panel of 1,736 US‐listed companies from 2002 to 2023. Employing a robust OLS framework, we assess both Value‐Based and Volume‐Based Acquisition Intensity against overall ESG scores and their environmental, social, and governance pillars, controlling for firm
Ugbede Amedu   +2 more
wiley   +1 more source

Jensen's Operator Inequality

open access: yes, 2002
We establish what we consider to be the definitive versions of Jensen's operator inequality and Jensen's trace inequality for functions defined on an interval.
Hansen, Frank, Pedersen, Gert K.
core   +1 more source

Exploring the Governance–Disclosure Nexus: Board Structures and ESG Disclosures in South Africa

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines how governance structures such as board composition and board functions influence environmental, social and governance (ESG) reporting among listed South African firms. This study examines 90 public listed companies on the Johannesburg Stock Exchange between 2012 and 2022.
Henriette Elsabe Scholtz   +1 more
wiley   +1 more source

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