Search results for "JOINT"
showing 10 items of 1472 documents
Equivalence of the Pecka–Ponec Correlation Probability and the Statistical F Significance for MLR Models
2004
In an article of this journal Pecka and Ponec [J. Math. Chem. 27 (2000) 13] have proposed, by means of a probability calculation, a method to evaluate the statistical importance of correlations obtained from multilinear regression equations involving an arbitrary number of experimental points and parameters. Here, it is demonstrated how this probability exactly coincides with a more general concept: the confidence probability of an F distribution having the appropriate degrees of freedom.
Headquarters’ Control Capacity and the Choice of R&D Organizational Forms Abroad
2013
International audience; Recently, regarding globalization, the decentralization of R&D activities abroad by multinational companies (MNCs) has become important in developed countries. However, academic research has not given this topic sufficient attention. This paper explains how the efficiency of control and incentive mechanisms may affect the choice of organizational forms by MNCs that decentralize their R&D activities abroad. We identify five main organizational forms: wholly owned green-field subsidiary, wholly owned acquired subsidiary, joint venture, cross-licensing agreements, and unilateral licensing agreements. A questionnaire addressed to the R&D managers of American and European…
Embedding Quantum into Classical: Contextualization vs Conditionalization
2014
We compare two approaches to embedding joint distributions of random variables recorded under different conditions (such as spins of entangled particles for different settings) into the framework of classical, Kolmogorovian probability theory. In the contextualization approach each random variable is "automatically" labeled by all conditions under which it is recorded, and the random variables across a set of mutually exclusive conditions are probabilistically coupled (imposed a joint distribution upon). Analysis of all possible probabilistic couplings for a given set of random variables allows one to characterize various relations between their separate distributions (such as Bell-type ine…
Second-order interaction in a Trivariate Generalized Gamma Distribution
2004
The concept of second- (and higher-) order interaction is widely used in categorical data analysis, where it proves useful for explaining the interdependence among three (or more) variables. Its use seems to be less common for continuous multivariate distributions, most likely owing to the predominant role of the Multivariate Normal distribution, for which any interaction involving more than two variables is necessarily zero. In this paper we explore the usefulness of a second-order interaction measure for studying the interdependence among three continuous random variables, by applying it to a trivariate Generalized Gamma distribution proposed by Bologna(2000).
Does ankle joint power reflect type of muscle action of soleus and gastrocnemius during walking in cats and humans?
2013
The main objective of this paper is to highlight the difficulties of identifying shortening and lengthening contractions based on analysis of power produced by resultant joint moments. For that purpose, we present net ankle joint powers and muscle fascicle/muscle-tendon unit (MTU) velocities for medial gastrocnemius (MG) and soleus (SO) muscles during walking in species of different size (humans and cats). For the cat, patterns of ankle joint power and MTU velocity of MG and SO during stance were similar: negative power (ankle moment×angular velocity<0), indicating absorption of mechanical energy, was associated with MTU lengthening, and positive power (generation of mechanical energy) w…
Classification and imaging of ankle impingement syndromes
2010
Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
Pigmented villonodular synovitis and pigmented villonodular bursitis: Imaging findings and review of the literature
2010
Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
Effectiveness of Physical Therapy in Patients with Tension-type Headache: Literature Review
2014
Background: Tension-type headache (TTH) is a disease with a great incidence on quality of life and with a significant socioeconomic impact. Objectives: The aim of this review is to determine the effectiveness of physical therapy by using manual therapy (MT) for the relief of TTH. Data sources: A review was done identifying randomized controlled trials through searches in MEDLINE, PEDro, Cochrane and CINAHL (January 2002 – April 2012). Study selection: English-language studies, with adult patients and number of subjects not under 11, diagnosed with episodic tension-type headache (ETTH) and chronic tension-type headache (CTTH) were included. Data extraction: Initial search was undertaken with…
Investor Inattention to All-Cash Acquisition Announcements: A Joint Day-Time Analysis in the Spanish Market
2021
Prior studies suggest that investors have limited attention, which determines the speed with which information is incorporated into share prices and, in turn, affects the efficiency of the markets. Unlike other corporate events, the information contained in an acquisition announcement is generally less standard and more complicated to process. Therefore, investor inattention is less likely around this event. In this study we test the existence of investor inattention for a sample of all-cash acquisition announcements of listed and unlisted target firms released by listed Spanish firms from 1998 to 2018. Cash acquisitions allow us to control for the strategic behavior of overvalued companies…
Temperature influence on the synthesis of pristine graphene oxide and graphite oxide
2015
Abstract Derivative oxide carbon materials, such as graphene or graphite oxides, have been recently considered to be a promising material in a wide scenarios of emerging technologies due to their physical and chemical properties, as well as, for their low production costs. Even if apparently similar, these materials exhibit different physical and chemical properties. One of the critical issue is associated with the exfoliation process and contributes to the formation of graphene oxide and graphite oxide material. Here, we show a single synthetic wet method to produce graphene or graphite oxide by applying a control of the operational temperature during the reaction. The process was optimise…