Results 31 to 40 of about 148 (92)
Current Gerontology and Geriatrics Research, Volume 2012, Issue 1, 2012., 2012 Background. Recurrent falls are common among the aged. Vision is needed in maintaining balance, and impaired vision may be an intrinsic risk factor of recurrent falls. The aim was to perform a systematic review about the relationships between eye diseases or impaired vision and the risk of recurrent falls in the aged. Material and Methods.
Liisa Salonen +2 more
wiley +1 more source
Steps Toward a Natural System of the Dicotyledons [PDF]
, 1991 Embryological character states are mapped on the diagrams of dicotyledons (G. Dahlgren 1989). The often well-defined pattern of distribution forms a basis for discussing and clarifying phylogenetic relations.
Dahlgren, Gertrud
core +2 more sources
Advances in Operations Research, Volume 2011, Issue 1, 2011., 2011 This paper focuses on real‐time nonpreemptive multiprocessor scheduling with precedence and strict periodicity constraints. Since this problem is NP‐hard, there exist several approaches to resolve it. In addition, because of periodicity constraints our problem stands for a decision problem which consists in determining if, a solution exists or not ...
Omar Kermia, Xiaoqiang Cai
wiley +1 more source
Mode‐Locking, Quasi‐Period and Chaos of Rotors Mounted on Nonlinear Bearings
International Journal of Rotating Machinery, Volume 6, Issue 3, Page 191-200, 2000., 2000 This study is to investigate the dynamics of a rotor, with a single degree of freedom (SDOF), mounted on nonlinear bearings. This system has piecewise‐linear stiffness and is subjected to a forcing excitation due to residual mass imbalance as well as a parametric one due to an axial periodic thrust.
Yeon-Pun Chang +4 more
wiley +1 more source
Curves with Canonical Models on Scrolls
, 2015 Let $C$ be an integral and projective curve whose canonical model $C'$ lies on a rational normal scroll $S$ of dimension $n$. We mainly study some properties on $C$, such as gonality and the kind of singularities, in the case where $n=2$ and $C$ is non ...
Lara, Danielle +2 more
core +1 more source
K3 surfaces of Kummer type in characteristic two
Bulletin of the London Mathematical Society, Volume 56, Issue 6, Page 1903-1919, June 2024.Abstract We discuss K3 surfaces in characteristic two that contain the Kummer configuration of smooth rational curves.
Igor V. Dolgachev
wiley +1 more source
S‐J‐Ideals: A Study in Commutative and Noncommutative Rings
Journal of Mathematics, Volume 2024, Issue 1, 2024.In this paper, we introduce the concept of S‐J‐ideals in both commutative and noncommutative rings. For a commutative ring R and a multiplicatively closed subset S, we show that many properties of J‐ideals apply to S‐J‐ideals and examine their characteristics in various ring constructions, such as homomorphic image rings, quotient rings, cartesian ...
Alaa Abouhalaka +3 more
wiley +1 more source
Қарағанды университетінің хабаршысы. Математика сериясыThis paper studies the problems of classification and reduction to canonical form of linear partial differential equations of the sixth-order with non-multiple characteristics and constant coefficients.
A.T. Abdukodirov, T.A. Tulkinboev
doaj +1 more source
Задача Коши для гиперболического уравнения и системы гиперболических уравнений третьего порядка с некратными характеристиками [PDF]
, 2013 Для гиперболического дифференциального уравнения третьего порядка с некратными характеристиками рассмотрена задача КошиyesБелгородский государственный ...
Яковлева, Ю. О.
core +1 more source
Inhibition of SMYD2 Sensitized Cisplatin to Resistant Cells in NSCLC Through Activating p53 Pathway [PDF]
, 2019 The protein lysine methyltransferase SMYD2 has recently emerged as a new enzyme modulate gene transcription or signaling pathways, and involved into tumor progression. However, the role of SMYD2 in drug resistant is still not known.
Lei Shang, Lei Shang, Minjie Wei
core +1 more source