Search results for "Berg"
showing 10 items of 758 documents
Dimension estimates on circular (s,t)-Furstenberg sets
2023
In this paper, we show that circular $(s,t)$-Furstenberg sets in $\mathbb R^2$ have Hausdorff dimension at least $$\max\{\frac{t}3+s,(2t+1)s-t\} \text{ for all $0<s,t\le 1$}.$$ This result extends the previous dimension estimates on circular Kakeya sets by Wolff.
Excited states of the water molecule: Analysis of the valence and Rydberg character
2008
The excited states of the water molecule have been analyzed by using the extended quantum-chemical multistate CASPT2 method, namely, MS-CASPT2, in conjunction with large one-electron basis sets of atomic natural orbital type. The study includes 13 singlet and triplet excited states, both valence and 3s-, 3p-, and 3d-members of the Rydberg series converging to the lowest ionization potential and the 3s- and 3p-Rydberg members converging to the second low-lying state of the cation, 1 math. The research has been focused on the analysis of the valence or Rydberg character of the low-lying states. The computation of the 1 math state of water at different geometries indicates that it has a predom…
Stackelberg-Walras and Cournot-Walras equilibria in mixed markets: a comparison
2012
In this note, we compare two strategic general equilibrium concepts: the Stackelberg-Walras equilibrium and the Cournot-Walras equilibrium. We thus consider a market exchange economy embodying atoms and a continuum of traders. It is shown that, when the preferences of the small traders are represented by Cobb-Douglas utility functions, the Stackel-berg-Walras and the Cournot-Walras equilibria can coincide only if 1) the endowments and preferences of atoms are identical and 2) the elasticity of the followers’ best response functions are equal to zero in equilibrium.
Johann Sebastian Bach - Variazioni Goldberg BWV 988
2017
Il saggio descrive la genesi e la struttura compositiva delle "Variazioni Goldberg" (1741) di Johann Sebastian Bach, anche in rapporto con alcune fra le ultime opere del "Periodo di Lipsia".
Effects of comprehensive geriatric intervention on physical performance among people aged 75 years and over.
2012
Background and aims: We studied the effects of comprehensive geriatric assessment and multifactorial intervention on physical performance among older people. Methods: In a 3-year geriatric development project with an experimental design, 668 participants aged 75–98 were assigned to intervention (n=348) or control (n=320) groups. The intervention group received comprehensive geriatric assessment with an individually targeted intervention for 2 years. The outcome measures—performance in the Timed Up-and-Go (TUG), 10-meter walking and Berg Balance Scale tests 2 were gathered annually during the intervention and the 1-year follow-up after it. Results: With linear mixed models, over the 2-year i…
Falls, Cognitive Function, and Balance Profiles of Singapore Community-Dwelling Elderly Individuals : Key Risk Factors
2017
Objective: This study compared occurrence of falls, cognitive function, and balance profiles across participants in elderly age categories, investigating associations between the 3 aspects in a sample of Singapore’s elderly population. Method: Community-dwelling elderly individuals (N = 385) were randomly recruited and grouped into “young-old (65-74 years),” “medium-old (75-84 years),” and “oldest-old (above 85 years)” groups. The Fallproof Health and Activity questionnaire, adapted Mini-Mental State Examination (MMSE), and Berg Balance Scale (BBS) tests were used to survey information related to falls, cognition, and balance profiles. Results: Findings revealed significant differences in M…
Bergson ja naurun yhteisöllinen jännite
2021
Artikkelissa selvitetään Henri Bergsonin nauruteoriaa teoksessa Nauru ja arvioidaan sen merkitystä osana Bergsonin filosofiaa yleisemmin. Lisäksi artikkelissa täydennetään Bergsonin nauruteoriaa Gilles Deleuzen, Baruch Spinozan ja Friedrich Nietzschen ajatusten pohjalta. Bergson analysoi teoksessa komiikan synnyttämää naurua ja näkee tämän elämän reaktiona sitä kangistavia taipumuksia vastaan. Elämän luovan mukautumisen ja sen kangistumisen välisestä jännitteestä käytetään artikkelissa nimitystä ”koominen jännite”. Nauru on Bergsonin mukaan olennaisesti inhimillinen ja yhteisöllinen ilmiö, joka huomauttaa jäsenilleen yhteisön elämän kannalta haitallisista poikkeamista. Komiikka on tämän kor…
Tidal gravity observations at Mt. Etna and Stromboli: Results concerning the modeled and observed tidal factors
2009
Continuous gravity observations performed in the last few years, both at Mt. Etna and Stromboli, have prompted the need to improve the tidal analysis in order to acquire the best corrected data for the detection of volcano related signals. On Mt. Etna, the sites are very close to each other and the expected tidal factor differences are negligible. It is thus useful to unify the tidal analysis results of the different data sets in a unique tidal model. This tidal model, which can be independently confirmed by a modeling of the tidal parameters based on the elastic response of the Earth to tidal forces and the computation of the ocean tides effects on gravity, is very useful for the precise t…
Planāra grafa dualitātes īpašības
2016
Maģistra darbā padziļināti aplūkoti vairāki jautājumi par atsevišķa veida ciklu eksistenci grafā. Tā kā literatūrā nav pietiekami plaši izpētīta Hamiltona cikla un Eilera cikla saistība ar duālo grafu, tad darba ietvaros tika formulētas teorēmas un veikti secinājumi par šo tēmu. Darbā apkopotās un formulētās sakarības izmantotas, lai izveidotu un analizētu algoritmus Hamiltona cikla eksistences novērtēšanai. Nozīmīgākās darbā formulētās sakarības ir Grinberga teorēma duālajam grafam, teorēmas par Hamiltona cikla un Eilera cikla eksistenci vienlaikus gan primārajā, gan duālajā grafā, kā arī secinājums par Hamiltona cikla eksistenci atkarībā no duālā grafa minimālās atdalošo šķautņu kopas. Īp…
On Grinberg’s Criterion
2019
We generalize Grinberg’s hamiltonicity criterion for planar graphs. To this end, we first prove a technical theorem for embedded graphs. As a special case of a corollary of this theorem we obtain Zaks’ extension of Grinberg’s Criterion (which encompasses earlier work of Gehner and Shimamoto), but the result also implies Grinberg’s formula in its original form in a much broader context. Further implications are a short proof for a slightly strengthened criterion of Lewis bounding the length of a shortest closed walk from below as well as a generalization of a theorem due to Bondy and Häggkvist. See full version of the article: https://www.sciencedirect.com/science/article/pii/S01956698183013…