Results 91 to 100 of about 7,144 (220)
Einstein–Perrin dilemma on the Brownian motion (Avogadro’s number) resolved?
Archive for History of Exact SciencesAbstractThe general recognition of the existence of atoms and molecules occurred only at the beginning of the twentieth century. Many researchers contributed to this, but the ultimate proof of the molecular nature of matter that convinced even the last sceptics was the confirmation of Albert Einstein’s statistical-fluctuation theory of Brownian motion,
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The 2-adic valuation of shifted Padovan and Perrin numbers and applications
Turkish Journal of MathematicsThe Padovan sequence is the ternary recurrent sequence \((P_n)_{n\ge 0}\) given by the recurrence \(P_{n+3}=P_{n+1}+P_n\) of initial values \(P_0=P_1=P_2=1\). The Perron numbers \((R_n)_{n\ge 0}\) satisfy the same recurrence but have initial values \(R_0=3,~R_1=0,~R_2=2\).
Bravo, Eric, Irmak, Nurettin
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Journal of Agrarian Change, EarlyView.ABSTRACT Large‐scale irrigation schemes are central to agrarian transformation in sub‐Saharan Africa, yet their political implications are often reduced to questions of land redistribution or agrarian differentiation. Although existing scholarship has documented how irrigation restructures agrarian relations and generates dispossession, less attention ...
William's Daré
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Repdigits base $ \eta $ as sum or product of Perrin and Padovan numbers
AIMS Mathematics<abstract><p>Let $ \left\{E_{n}\right\}_{n\geq0} $ and $ \left\{P_{n}\right\}_{n\geq0} $ be sequences of Perrin and Padovan numbers, respectively. We have found all repdigits that can be written as the sum or product of $ E_{n} $ and $ P_{m} $ in the base $ \eta $, where $ 2\leq\eta\leq10 $ and $ m\leq n $.
Hunar Sherzad Taher, Saroj Kumar Dash
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Early Labor Market Outcomes of Young Adults From Same‐Sex Families: Evidence From Population Data
Journal of Marriage and Family, EarlyView.ABSTRACT Objective This study offers the first population‐based evidence on how young adults from same‐sex families fare when entering the labor market shortly after leaving full‐time education. Background Same‐sex couples' parenting rights remain controversial in many countries.
Silvia Palmaccio +2 more
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How Mental Concepts Shape Sleep: Introducing the Mental Concept Reactivation Hypothesis of Sleep
Journal of Sleep Research, EarlyView.ABSTRACT Sleep problems affect a substantial proportion of individuals, and negative thoughts, rumination, and worry are considered key factors underlying persistence and severity. While extensive research has examined how these states disrupt sleep before falling asleep, much less is known about how mental concepts, including thoughts, expectations ...
Anna Zoé Wick, Björn Rasch
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On the Non-Newtonian Padovan and Non-Newtonian Perrin Numbers
Sinop Üniversitesi Fen Bilimleri DergisiIn this work, we introduce a novel version of Padovan and Perrin numbers which we refer to as non-Newtonian Padovan and non-Newtonian Perrin numbers. Furthermore, we examine about a number of their properties. Additionally, we provide a variety of identities and formulas involving these new kinds, including the Binet-like formulas, the generating ...
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A Closed Formula for the Sums of Squares of Generalized Tribonacci numbers
, 2020 In this paper, closed forms of the sum formulas for the squares of generalized Tribonacci numbers are presented. As special cases, we give summation formulas of the squares of Tribonacci, Tribonacci-Lucas, Padovan, Perrin, Narayana and some other third ...
Soykan, Yüksel
core
Informal Human Milk Sharing Practices: A Cross‐Sectional Survey of Donors and Recipients in Ireland
Maternal &Child Nutrition, EarlyView.ABSTRACT The provision of human milk is a global public health priority underpinned by its extensive benefits to infant and maternal health, and significant positive impacts within economic, societal, and environmental spheres. Informal human milk sharing (IHMS) is a contemporary and increasingly prevalent phenomenon which involves the exchange of ...
Niamh Vickers +2 more
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Pacing and Clinical Electrophysiology, EarlyView.ABSTRACT Conduction system pacing (CSP) is an emerging new method of cardiac resynchronization therapy (CRT), however, one third of patients with left bundle branch block (LBBB) have distal conduction disease, which is not amenable to correction with CSP. There is an emerging need for tailored analysis of ventricular depolarization patterns for patient
Tadej Žlahtič +7 more
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