Results 141 to 150 of about 145,594 (304)

The link between school leadership, staff job satisfaction and retention. Longitudinal evidence from England

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This paper presents new evidence on the link between staff perceptions of school leadership and job satisfaction, drawing on three waves of The Engagement Platform data collected from over 4000 members of school staff in England. We find that when staff have a positive rather than an ambivalent view of school leadership, their job satisfaction
John Jerrim
wiley   +1 more source

New examples of determinant divisibility sequences [PDF]

open access: yesarXiv, 2015
In this paper we consider divisibility sequences obtained from square matrices. We work with of matrix divisibility sequences associated to a semigroup and arising from endomorphisms of an affine space. We prove that determinant divisibility sequences originated from powers of square matrices are generalized Lucas sequences.
arxiv  

The positioning of parental engagement within England's current educational policy landscape

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Parental engagement with children's learning is strongly linked with improved outcomes for children and has thus become a major focus of educational policy around the world. Yet to date, there has been little scrutiny of how parental engagement is positioned within policy documents, nor how this relates to parental engagement practices.
Cat Jones   +2 more
wiley   +1 more source

On the index of appearance of a Lucas sequence

open access: yesThe Ramanujan Journal
Let $\mathbf{u} = (u_n)_{n \geq 0}$ be a Lucas sequence, that is, a sequence of integers satisfying $u_0 = 0$, $u_1 = 1$, and $u_n = a_1 u_{n - 1} + a_2 u_{n - 2}$ for every integer $n \geq 2$, where $a_1$ and $a_2$ are fixed nonzero integers. For each prime number $p$ with $p \nmid 2a_2D_{\mathbf{u}}$, where $D_{\mathbf{u}} := a_1^2 + 4a_2$, let $ρ_ ...
openaire   +2 more sources

Bayesian Optimization in Bioprocess Engineering—Where Do We Stand Today?

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Bayesian optimization is a stochastic, global black‐box optimization algorithm. By combining Machine Learning with decision‐making, the algorithm can optimally utilize information gained during experimentation to plan further experiments—while balancing exploration and exploitation.
Florian Gisperg   +5 more
wiley   +1 more source

On arithmetic progressions in Lucas sequences

open access: yes, 2017
In this paper, we consider arithmetic progressions contained in Lucas sequences of first and second kind. We prove that for almost all sequences, there are only finitely many and their number can be effectively bounded. We also show that there are only a few sequences which contain infinitely many and one can explicitly list both the sequences and the ...
Hajdu, Lajos   +2 more
openaire   +2 more sources

Some New Generalizations Of The Lucas Sequence

open access: yes, 2017
In this paper, we investigate the generalized Lucas, the generalized complex Lucas and the generalized dual Lucas sequence using the Lucas number. Also, we investigate special cases of these sequences. Furthermore, we give recurrence relations, vectors, the golden ratio and Binet’s formula for the generalized Lucas and the generalized dual Lucas ...
Torunbalcı Aydın, Fügen, Yüce, Salim
openaire   +2 more sources

Enhancing the performance of an in vitro RNA biosensor through iterative design of experiments

open access: yesBiotechnology Progress, EarlyView.
Abstract The quality control of RNA has become increasingly crucial with the rise of mRNA‐based vaccines and therapeutics. However, conventional methods such as LC–MS often require specialized equipment and expertise, limiting their applicability to high throughput experiments.
Rochelle Aw, Karen Polizzi
wiley   +1 more source

Purine Chemistry in the Early RNA World at the Origins of Life: From RNA and Nucleobases Lesions to Current Key Metabolic Routes

open access: yesChemBioChem, EarlyView.
In the nascent processes of the beginnings and evolution of life, nucleobases and especially purines, ribonucleos(t)ides and primitive RNAs have been continuously modified. A RNA‐peptide world and key metabolic pathways probably have emerged from the corresponding chemical modifications resulting from adenine deamination, purine alkylation and ...
Jean‐Luc Décout   +1 more
wiley   +1 more source

Home - About - Disclaimer - Privacy