Results 101 to 110 of about 11,636,186 (273)

Estructura de superficies de Riemann, desigualdades isoperimétricas y medida p-armónica en grafos [PDF]

, 1999
Se estructura el trabajo en torno a un capítulo introductorio y cinco capítulos temáticos que desarrollan teorías referidas a la descomposición de superficies, a la desigualdad isopemétrica en superficies de Riemann con punturas, a la desigualdad ...
Álvarez González, Venancio
core   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

Governing Marginality Through Crime: The Cameron Government's ‘Thug State’ Responses to the August 2011 English Riots

International Social Science Journal, EarlyView.
ABSTRACT This article examines the British government's response to the August 2011 English riots through the lens of state crime, drawing on Richards and Avery's ‘Thug State’ concept. It addresses the relative neglect of the state's response itself as a potential form of criminality and social harm.
Monia O'Brien Castro
wiley   +1 more source

Contingent capital: A tale of two valuations

Journal of Risk and Insurance, EarlyView.
Abstract This study investigates the valuation gap between buyers and sellers of insurers' contingent capital, driven by asymmetric exposures to tax benefits, capital injections, and bankruptcy costs. We develop a novel Twin‐Tree Model with Jumps (TTMJ) that models the insurer's asset value dynamics by incorporating catastrophe risk, insolvency risk ...
Tian‐Shyr Dai, Chien‐Ling Lo, You‐Jia Sun, Hao‐Han Chang   +3 more
wiley   +1 more source

Survey and new results on boundary-value problems of singular fractional differential equations with impulse effects

Electronic Journal of Differential Equations, 2016
Firstly we prove existence and uniqueness of solutions of Cauchy problems of linear fractional differential equations (LFDEs) with two variable coefficients involving Caputo fractional derivative, Riemann-Liouville derivative, Caputo type Hadamard ...
Yuji Liu
doaj  

An Explicit Numerical Method for the Fractional Cable Equation

International Journal of Differential Equations, 2011
An explicit numerical method to solve a fractional cable equation which involves two temporal Riemann-Liouville derivatives is studied. The numerical difference scheme is obtained by approximating the first-order derivative by a forward difference ...
J. Quintana-Murillo, S. B. Yuste
doaj   +1 more source

Chronic insomnia, REM sleep instability and emotional dysregulation: A pathway to anxiety and depression?

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary The world‐wide prevalence of insomnia disorder reaches up to 10% of the adult population. Women are more often afflicted than men, and insomnia disorder is a risk factor for somatic and mental illness, especially depression and anxiety disorders.
Dieter Riemann, Raphael J. Dressle, Fee Benz, Kai Spiegelhalder, Anna F. Johann, Christoph Nissen, Elisabeth Hertenstein, Chiara Baglioni, Laura Palagini, Lukas Krone, Michael L. Perlis, Katharina Domschke, Mathias Berger, Bernd Feige   +13 more
wiley   +1 more source

Feasibility and usability of three consecutive nights with self‐applied, home polysomnography

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary In‐laboratory polysomnography, the gold‐standard for diagnosing sleep disorders, is resource‐demanding and not conducive to multiple night evaluations. Ambulatory polysomnography, especially when self‐applied, could be a viable alternative. This study aimed to assess the feasibility and reliability of self‐applied polysomnography over three ...
Dimitri Ferretti, Anna S. Islind, Kristín A. Ólafsdóttir, Sigridur Sigurdardottir, Kamilla R. Jóhannsdóttir, Jan Hedner, Ludger Grote, Erna Sif Arnardottir   +7 more
wiley   +1 more source

Schmertzliche Klage, Welche Uber das frühzeitige doch seelige Absterben Des Weyland HochEdlen, Vest und Hochgelahrten Herrn Johann Günther Riemanns, Königl. Preußischen Raths und berühmten Juris-Consulti, Am Tage der Beerdigung den 19. Sept. 1721. in höchster Bestürtzung entworffen Desselben Jüngster Sohn Johann Gottfried Riemann, Stud. Iuris.

Gedächtnisgedicht auf Johann Günter Riemann, Königl. Rat, + 14. Sept.
Riemann, Johann Gottfried
core   +1 more source

Profiling the sleep architecture of ageing adults using a seven‐state continuous‐time Markov model

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is a complex biological process regulated by networks of neurons and environmental factors. As one falls asleep, neurotransmitters from sleep–wake regulating neurones work in synergy to control the switching of different sleep states throughout the night. As sleep disorders or underlying neuropathology can manifest as irregular switching,
Jonathon Jacobs, Caitlin E. Martin, Bernard Fuemmeler, Shanshan Chen   +3 more
wiley   +1 more source