Results 41 to 50 of about 2,763,559 (177)

Snapshot in surgery: How do you approach this 12‐year‐old girl?

open access: yesClinical Case Reports, 2018
Key Clinical Message This case open questions about the dimensional limit for a laparoscopic treatment of a giant bezoar. A minimally invasive option should be considered every time a gastric obstruction is suspected, particularly for psychiatric ...
Roberto Bustos   +2 more
doaj   +1 more source

An APOS Analysis of students’ understanding of the concept of a limit of a function

open access: yesPythagoras, 2010
This article reports on a study which used the APOS (Action‐Process‐Object‐Schema) theory framework to investigate university students’ understanding of limits of functions.
Aneshkumar Maharaj
doaj   +1 more source

Party Control and Responsiveness

open access: yesDigital Humanities in the Nordic and Baltic Countries Publications, 2022
Different parliamentary activities allow Members of Parliament (MPs) varying amounts of autonomy. Previous studies have shown that, in parliamentary systems with strong parties and party-centered electoral rules, MPs have limited room for crossing the ...
Martin Søyland
doaj   +1 more source

Systems of Points with Coulomb Interactions

open access: yes, 2018
Large ensembles of points with Coulomb interactions arise in various settings of condensed matter physics, classical and quantum mechanics, statistical mechanics, random matrices and even approximation theory, and give rise to a variety of questions ...
Serfaty, Sylvia
core   +1 more source

Form and index of Ginsparg-Wilson fermions [PDF]

open access: yes, 2002
We clarify the questions rised by a recent example of a lattice Dirac operator found by Chiu. We show that this operator belongs to a class based on the Cayley transformation and that this class on the finite lattice generally does not admit a ...
M.F. Atiyah, Werner Kerler
core   +2 more sources

Pots, Pans, and People: Ceramic Ecology in West Mexico

open access: yesPapers from the Institute of Archaeology, 1992
Little is known about the interrelationship of environment and ceramic specialization, and many questions still remain to be answered, for example: What factors favor or limit the development of ceramic specialization? Why did pottery apparently arise in
doaj   +2 more sources

Fixed points and differential equations with asymptotically constant or periodic solutions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
Cooke and Yorke developed a theory of biological growth and epidemics based on an equation $x'(t)=g(x(t))-g(x(t-L))$ with the fundamental property that $g$ is an arbitrary locally Lipschitz function.
Theodore Burton
doaj   +1 more source

The Effectiveness of Interactive Multimedia 3D Modeling of Metallic Bondings to Optimize Visual-Spatial Intelligence

open access: yesJTK (Jurnal Tadris Kimiya), 2021
The research aims to test the effectiveness of three-dimensional (3D) modelling of metallic bonding as a learning media to optimize student visual-spatial intelligence.
Irvandar Nurviandy   +1 more
doaj   +1 more source

Sandpile models [PDF]

open access: yes, 2018
This survey is an extended version of lectures given at the Cornell Probability Summer School 2013. The fundamental facts about the Abelian sandpile model on a finite graph and its connections to related models are presented.
Járai, Antal A.
core   +2 more sources

Construction and Validation the Healthy Lifestyle Questionnaire Among the Iranian Elderly Who Receive Home Care Services

open access: yesSālmand, 2020
Objectives: Investigating the elderlychr('39')s lifestyle conditions is a challenging issue, due to various factors influencing lifestyle. The current study was developed to explore the construct and validity of the Healthy Lifestyle Questionnaire (HLQ ...
Morad Esmaeil Zali   +3 more
doaj  

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