Results 31 to 40 of about 7,144 (220)

Perrin numbers which are concatenations of two distinct repdigits [PDF]

open access: yes, 2020
We determine all Perrin numbers that are concatenations of two repdigits.
Toboka Chalebgwa, Mahadi Ddamulira
openaire   +1 more source

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su   +4 more
wiley   +1 more source

Stabilization Strategies for Carbon Based Perovskite Solar Cells Under Light, Heat, and Humidity

open access: yesEcoEnergy, EarlyView.
Carbon‐based MA1−x(AVA)xPbI3/CsPbBr3 QD heterostructures fabricated under ambient conditions exhibit < 5% loss under ISOS‐D‐3 and reversible photo‐induced degradation, revealing the dual role of QDs in defect passivation and dynamic interfacial stabilization.
Emilie Planes   +4 more
wiley   +1 more source

The sequences of the hyperbolic k-Perrin and k-Leonardo quaternions

open access: yes, 2023
In this article, hyperbolic k-Perrin and k-Leonardo quaternions are defined. In this sense, bulletin, are evaluated as sequences of k-Perrin and k-Leornado, their respective quaternions and thus the definition of hyperbolic quaternions.
Vieira, R.   +3 more
core   +1 more source

Occupational Licensing and Psychologist Supply

open access: yesHealth Economics, EarlyView.
ABSTRACT Does reducing interstate licensing barriers increase the supply of mental health providers? We study this question using the U.S. Psychology Interjurisdictional Compact (PSYPACT), which allows psychologists to practice across state lines via telemedicine without obtaining additional state licenses.
Daniel Goetz
wiley   +1 more source

Here we find the Padovan and Perrin numbers that are concatenations of two terms of the other sequence. We also find the intersection between these ternary sequences.

open access: yes, 2023
Here we find the Padovan and Perrin numbers that are concatenations of two terms of the other sequence. We also find the intersection between these ternary sequences.
Bravo, Eric Fernando
core   +1 more source

Residence Near Agricultural Crops at Birth and Risk of Adult Testicular Germ Cell Tumors: A French Nationwide Case–Control Study Using Historical Aerial GIS Data

open access: yesInternational Journal of Cancer, EarlyView.
As the incidence of testicular germ cell tumors (TGCTs) rises, prenatal exposure to agricultural pesticides may represent an important risk factor. Here, geographic information system‐based measures of farmland proximity at birth were used as a proxy for early‐life pesticide exposure in France, a major pesticide consumer.
Aurélie M. N. Danjou   +75 more
wiley   +1 more source

A Study on Generalized Blaise Numbers

open access: yes, 2023
In this paper, we introduce and investigate the generalized Blaise sequences and we deal with, in detail, two special cases, namely, Blaise and Blaise-Lucas sequences.
Soykan, Yüksel
core   +1 more source

Two Shades of Green? Gender Differences in Environmental Concern and Activism

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This study examines gender differences in environmental concern and activism using data from the World Values Survey. The results indicate that women are more likely than men to be concerned about the environment, but are less likely to engage in environmental activism.
Hava Orkut, Caroline Perrin
wiley   +1 more source

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