Results 71 to 80 of about 284,848 (317)

Robust Position Control of VTOL UAVs Using a Linear Quadratic Rate-Varying Integral Tracker: Design and Validation

Drones
This article presents an optimal tracking controller retrofitted with a nonlinear adaptive integral compensator, specifically designed to ensure robust and accurate positioning of Vertical Take-Off and Landing (VTOL) Unmanned Aerial Vehicles (UAVs) that ...
Omer Saleem, Muhammad Kazim, Jamshed Iqbal   +2 more
doaj   +1 more source

Derivatives of tangent function and tangent numbers

, 2015
In the paper, by induction, the Fa\`a di Bruno formula, and some techniques in the theory of complex functions, the author finds explicit formulas for higher order derivatives of the tangent and cotangent functions as well as powers of the sine and ...
Bourbaki, Boyadzhiev, Comtet, Daboul, Dominici, Feng Qi, Guo, Guo, Guo, Guo, Guo, Guo, Guo, Guo, Hoffman, Hoffman, Luo, Luo, Ma, Ma, Ma, Qi, Qi, Qi, Qi, Qi, Qi, Qi, Qi, Qi, Qi, Qi, Remmert, Schwatt, Schwatt, Wei, Xu, Zhang   +37 more
core   +1 more source

Global and Regional Temporal Changes in Cross‐Country Inequalities of Site‐Specific Osteoarthritis Burden, 1990 to 2021

Arthritis Care &Research, EarlyView.
Objective This study examined the global and regional temporal changes in cross‐country inequalities of site‐specific osteoarthritis (OA) burden from 1990 to 2021. Methods Age‐standardized years lived with disability rates (ASYRs) for site‐specific OA across 204 countries and territories were obtained from the Global Burden of Diseases, Injuries, and ...
Haowei Chen, Lei Si, David J. Hunter, Lei Zhang, Zhe‐Sheng Chen, Xiaomeng Wang, Vicky Duong, Zhounan Zhou, Peihua Cao, Han Cen, Su'an Tang, Tianyu Chen, Houjun Xue, Zhaohua Zhu, Changhai Ding   +14 more
wiley   +1 more source

Elliptic, Parabolic and Hyperbolic Analytic Function Theory--0: Geometry of Domains [PDF]

, 2004
This paper lays down a foundation for a systematic treatment of three main (elliptic, parabolic and hyperbolic) types of analytic function theory based on the representation theory of SL(2,R) group.
Biswas, Debapriya, Kisil, Vladimir V.
core   +5 more sources

Function Theory on a q-Analog of Complex Hyperbolic Space

, 2002
This work deals with function theory on quantum complex hyperbolic spaces. The principal notions are expounded. We obtain explicit formulas for invariant integrals on `finite' functions on a quantum hyperbolic space and on the associated quantum ...
Bershtein, O., Sinel'shchikov, S. D.
core   +5 more sources

Economic Burden of Rheumatoid Arthritis in Low‐ and Middle‐Income Countries: Systematic Review and Meta‐Analysis

Arthritis Care &Research, EarlyView.
Objective The aim of this systematic review was to synthesize the economic impact of rheumatoid arthritis (RA) on households, health systems, and society in low‐ and middle‐income countries (LMICs). Methods Electronic databases such as PubMed, Web of Science, and CINAHL were searched using keywords related to RA and cost of illness.
Tadesse Gebrye, Chidozie E. Mbada, Clara T. Fatoye, Faatihah Niyi‐Odumosu, Ushotanefe Useh, Zalmai Hakimi, Francis Fatoye   +6 more
wiley   +1 more source

Symplectic evolution of Wigner functions in markovian open systems

, 2004
The Wigner function is known to evolve classically under the exclusive action of a quadratic hamiltonian. If the system does interact with the environment through Lindblad operators that are linear functions of position and momentum, we show that the ...
A. Isar, A. M. Ozorio de Almeida, A. Voros, A.M. Ozorio de Almeida, A.M. Ozorio de Almeida, G. Lindblad, G. Lindblad, G.S. Agarwal, H. Moya-Cessa, H.J. Groenewold, K. Husimi, L. Diósi, M.S. Kim, O. Brodier, P. Leboeuf, R.G. Littlejohn, T. Kiss, U. Leonhardt, V. Bargmann, V. Bargmann, V.I. Tatarskiĭ, W.H. Zurek   +21 more
core   +1 more source

Considerations for Issues of Regression to the Mean and Contextual Effects in Clinical Trials for Pain in Rheumatic Diseases

Arthritis Care &Research, EarlyView.
Recently, there has been growing discussion about how to best assess pain in clinical trials in rheumatic diseases. Reliable measurement of pain outcomes is essential for accurately determining the effectiveness of treatments. Although pain intensity is the most common measure of change in pain trials, other pain‐related measures, such as pain ...
Yen T. Chen, Guohao Zhu, Afton L. Hassett, Daniel Clauw, Susan L. Murphy   +4 more
wiley   +1 more source

Perceptions About Asymptomatic Hyperuricemia and Views About Urate‐Lowering Therapy in People With Asymptomatic Hyperuricemia

Arthritis Care &Research, EarlyView.
Objective Asymptomatic hyperuricemia is a precursor of gout and is also associated with cardiovascular disease and chronic kidney disease. The aim of this study was to understand perceptions about asymptomatic hyperuricemia and views about urate‐lowering therapy in people with asymptomatic hyperuricemia. Methods Participants in a multinational study of
Nicola Dalbeth, Sarah Stewart, Gregory D. Gamble, Borislav Mihov, Lisa K. Stamp, Janine Haslett, William J. Taylor, Tony R. Merriman, Adwoa Dansoa Tabi‐Amponsah, Anne Horne, Tuhina Neogi, Tristan Pascart, Mariano Andrés, Maria‐Luisa Peral‐Garrido, Eleonora Norkuviene, Janitzia Vazquez‐Mellado, Till Uhlig, Mingshu Sun, Changgui Li, Keith J. Petrie   +19 more
wiley   +1 more source

Inequalities between the inverse hyperbolic tangent and the inverse sine and the analogue for corresponding functions

Journal of Inequalities and Applications, 2019
In this paper, we obtain some new inequalities which reveal the further relationship between the inverse tangent function arctanx and the inverse hyperbolic sine function sinh−1 x. At the same time, we give the analogue for inverse hyperbolic tangent and
Ling Zhu, Branko Malešević
doaj   +1 more source