Results 51 to 60 of about 11,362 (163)

Hopf Bifurcations in a Watt Governor With a Spring

, 2008
This paper pursues the study carried out by the authors in "Stability and Hopf bifurcation in a hexagonal governor system", focusing on the codimension one Hopf bifurcations in the hexagonal Watt governor differential system.
Al-Humadi A, Hassard B D, Kuznetsov Y A, Kuznetsov Y A, MacFarlane A G J, Maxwell J C, Pontryagin L S, Sotomayor J, Sotomayor J, Sotomayor J, Sotomayor J, Takens F, Vyshnegradskii I A, Wolfram S   +13 more
core   +1 more source

Health costs in patients treated for depression, in patients with depressive symptoms treated for another chronic disorder, and in non-depressed patients: a two-year prospective cohort study in anthroposophic outpatient settings [PDF]

, 2009
Anthroposophy, Complementary therapies, Costs and cost analysis, Chronic disease, Depressive disorder, Primary health care, H51, I18, J17,
Harald J. Hamre, Claudia M. Witt, Anja Glockmann, Renatus Ziegler, Gunver S. Kienle, Stefan N. Willich, Helmut Kiene, TB Ustun, A Rupp, M Luppa, WJ Katon, GE Simon, GE Simon, L Knorring von, W Katon, W Katon, GE Simon, J Unutzer, RC Kessler, P Wu, G Hawthorne, DN Trivedi, RD Goldney, HJ Hamre, HJ Hamre, LS Radloff, M Hautzinger, JE Ware, WW Downie, M Korff von, RE Johnson, GE Simon, J Unutzer, JC McGregor, A Briggs, J Carpenter, JL Hodges, SG Thompson, JK Lindsey, J Gill, HJ Salize, HJ Henk, GE Simon, BG Druss, MP Luber, MP Luber, RL Robinson, L Nichols, CM Callahan, C Evans, A Briggs, HU Wittchen, HU Wittchen, F Schneider, MJ Gameroff, P Cuijpers, HJ Hamre   +56 more
core   +2 more sources

Combining ability and heterosis in partial resistance to gray leaf spot in elite maize (Zea mays L.) genotypes

Crop Science, Volume 66, Issue 1, January/February 2026.
Abstract Six sets of 48 maize (Zea mays L.) inbred lines, and their 96 single crosses generated using the North Carolina Mating Design II system, were evaluated for resistance to gray leaf spot (GLS). The aim of the study was to assess the implications of combining ability, heterotic effects, and potence ratio in breeding for GLS resistance in maize ...
James O. Nyanapah, Patrick. O. Ayiecho, Julius O. Nyabundi, Washington Otieno, Peter S. Ojiambo   +4 more
wiley   +1 more source

Cardiac revascularization: state of the art and perspectives

Vascular Biology, 2019
Cardiac ischemia is the leading cause of morbidity and mortality in a worldwide epidemic. The progressive understanding of the mechanisms driving new blood vessel formation has led to numerous attempts to revascularize the ischemic heart in animal models
Ambra Cappelletto, Serena Zacchigna
doaj   +1 more source

The Rise of Health Economics: Transforming the Landscape of Economic Research

Health Economics, Volume 35, Issue 1, Page 52-68, January 2026.
ABSTRACT This paper explores the evolving role of health economics within economic research and publishing over the past 30 years. Historically, largely a niche field, health economics has become increasingly prominent, with the share of health economics papers in top journals growing significantly.
Lorenz Gschwent, Björn Hammarfelt, Martin Karlsson, Mathias Kifmann   +3 more
wiley   +1 more source

Knowledge and vaccination in COVID-19 management efficiency: a Global Malmquist-Luenberger index analysis

Journal of Innovation & Knowledge
The COVID-19 pandemic posed severe challenges for governments, presenting unknown situations and requiring decisions to be made under unprecedented uncertainty.
Martínez Córdoba Pedro José, Márquez Arenas Lorena, Povedano Fernández Pablo, Rodríguez Gómez Sara, Zafra Gómez José Luis   +4 more
doaj   +1 more source

The Isomerization Equilibrium between Cis and Trans Chloride Ruthenium Olefin Metathesis Catalysts from Quantum Mechanics Calculations [PDF]

, 2005
The cis−trans chloride isomerization of a ruthenium olefin metathesis catalyst is studied using quantum mechanics (B3LYP DFT), including the Poisson−Boltzmann (PBF) continuum approximation. The predicted geometries agree with experiment.
Benitez, Diego, Goddard, William A., III
core   +1 more source

Complications in Endoscopic Sinus Surgery: A TriNetX Network Analysis

International Forum of Allergy &Rhinology, Volume 15, Issue 12, Page 1393-1404, December 2025.
ABSTRACT Background The potential complications of endoscopic sinus surgery (ESS) remain a critical surgical consideration. This study aims to examine complication rates and identify trends in ESS‐related complications. Methods The TriNetX network was queried for patients undergoing ESS between 2005 and 2024.
Jakob L. Fischer, Tyler J. Gallagher, Matthew E. Lin, Ian Kim, Bozena B. Wrobel, Daniel M. Beswick, Jivianne T. Lee, Marilene B. Wang, Jeffrey D. Suh   +8 more
wiley   +1 more source

Structural insights into transition‐metal–aminodiphosphine (PNP) complexes bearing [MCln(PNP)2] (M = Co, Ru, Cr or Mo; n = 1 or 2) cores in the solid state

Acta Crystallographica Section C, Volume 81, Issue 12, Page 694-701, December 2025.
The molecular structures of two novel cobalt aminodiphosphine (PNP) complexes are reported, featuring variation in the N‐atom substituent. A Cambridge Structural Database (CSD) survey, along with a noncovalent interaction (NCI) analysis of the analogous [TMCln(PNP)2] (where TM = transition metal and n = 1 or 2) core, revealed an inverse correlation ...
Sizwe J. Zamisa, Adesola A. Adeleke, Dunesha Naicker, Holger B. Friedrich, Bernard Omondi   +4 more
wiley   +1 more source

Effects of healthcare spending on public health status: An empirical investigation from Bangladesh

Heliyon
The escalation of healthcare spending in many nations, particularly in emerging countries such as Bangladesh, may be largely attributed to the growing demand for healthcare services. Evidently, there has been a significant expansion in the public funding
Sabiha Sultana, Md. Emran Hossain, Md. Akhtaruzzaman Khan, Sourav Mohan Saha, Md. Ruhul Amin, Md. Masudul Haque Prodhan   +5 more
doaj   +1 more source