Search results for "reciproc"
showing 10 items of 281 documents
Cortical stimulation and reflex excitability of spinal cord neurones in man.
1995
The H reflex technique was used to evaluate the influence exerted by cortical conditioning on the excitability of the alpha-motoneurone pool and on IA interneuronal activity (reciprocal inhibition). In ten subjects at absolute rest electrical and magnetic stimulation of the motor cortex was transcranially applied during flexor carpi radialis H reflex eliciting and in conditions of reciprocal inhibition induced by radial nerve stimulation. The time courses showed that at intensities below motor threshold, electrical brain conditioning induced an increase in the amplitude of the test reflex when the cortical shock was given 4 ms after the test H reflex. On the contrary, reciprocal inhibition …
Bidirectional within- and between-person relations between physical activity and cognitive function
2022
Abstract Objectives To examine bidirectional within- and between-person relations between physical activity and cognitive function across 15 years. Methods Participants (N = 1,722, age range 40–85 years, 55% women) were drawn from the Betula prospective cohort study. We included 4 waves of data. Bivariate latent curve models with structured residuals were estimated to examine bidirectional within- and between-person relations between physical activity and cognitive function (episodic memory recall, verbal fluency, visuospatial ability). Results We observed no statistically significant bidirectional within-person relations over time. Higher levels of physical activity at baseline were relate…
The peer review game: an agent-based model of scientists facing resource constraints and institutional pressures
2018
This paper looks at peer review as a cooperation dilemma through a game-theory framework. We built an agent-based model to estimate how much the quality of peer review is influenced by different resource allocation strategies followed by scientists dealing with multiple tasks, i.e., publishing and reviewing. We assumed that scientists were sensitive to acceptance or rejection of their manuscripts and the fairness of peer review to which they were exposed before reviewing. We also assumed that they could be realistic or excessively over-confident about the quality of their manuscripts when reviewing. Furthermore, we assumed they could be sensitive to competitive pressures provided by the ins…
The effects of personality, risk and other-regarding attitudes on trust and reciprocity
2022
Abstract This paper reports experimental results on the determinants of trust and reciprocity in the context of a genuinely sequential, binary Trust Game. Apart from behavior in the main experiment, subjects’ risk attitudes and inequality aversion are elicited, as well as the traits of neuroticism and agreeableness, captured through the five-factor model. The findings suggest that trustors’ (first movers) behavior is affected by their loss aversion, while trustees’ (second movers) reciprocal behavior is not explained by any of their other-regarding attitudes, but, rather, by their agreeableness.
Periodic Polynomial Splines
2018
In this chapter, the spaces of periodic polynomial splines and the Spline Harmonic Analysis (SHA) in these spaces are briefly outlined. The stuff of this chapter is used for the design of periodic discrete-time splines and discrete-time-spline-based wavelets and wavelet packets. For a detailed description of the subject we refer to (Averbuch, Neittaanmaki and Zheludev, Spline and Spline Wavelet Methods with Applications to Signal and Image Processing, Springer, Berlin, 2014) [1]. Periodic polynomial splines provide an example of mixed discrete-continuous circular convolution.
Memoria oral y alimentación: estrategias de supervivencia durante la Guerra Civil Española (1936-1939) y la posguerra (1939-1955)
2011
El principal objetivo de nuestro tra bajo es delimitar las prácticas de reciprocidad que se llevaron a cabo durante el período de tiempo analizado y que permitieron reproducirse socialmente a los grupos menos favorecidos por la guerra y la posguerra . Nuestro análisis demuestra que la alimentación es un sistema de comuni - cación mediante el cual se crean o mantienen prácticas de poder , así como expre - siones de identidad y/o defensa o ruptura de las normas morales que comparte un grupo social .
A membrane computing simulator of trans-hierarchical antibiotic resistance evolution dynamics in nested ecological compartments (ARES)
2015
In this article, we introduce ARES (Antibiotic Resistance Evolution Simulator) a software device that simulates P-system model scenarios with five types of nested computing membranes oriented to emulate a hierarchy of eco-biological compartments, i.e. a) peripheral ecosystem; b) local environment; c) reservoir of supplies; d) animal host; and e) host's associated bacterial organisms (microbiome). Computational objects emulating molecular entities such as plasmids, antibiotic resistance genes, antimicrobials, and/or other substances can be introduced into this framework and may interact and evolve together with the membranes, according to a set of pre-established rules and specifications. AR…
Rocības maksimizācijas stratēģijas Latvijas mājsaimniecībās
2018
Darba pētnieciskā tēma ir Latvijas mājsaimniecību labklājības nodrošināšanas stratēģijas pastāvošajā ekonomiskajā un sociālajā sistēmā Latvijā. Darba mērķis ir Latvijas mājsaimniecību ekonomiskās uzvedības izpēte un tās sasaiste ar nodokļu un sociālā atbalsta sistēmu Latvijā. Pētījumā analizēta piecu Latvijas mājsaimniecību ekonomiskā uzvedība, izmantojot tādus antropoloģiskos konceptus kā mājsaimniecība un mājsaimniecības stratēģijas. Pētījums apkopo piecu Latvijas mājsaimniecību finanšu datus, iknedēļas aktivitāšu datus un intervijas ar šo mājsaimniecību locekļiem. Rezultāti norāda, ka vairumā pētīto gadījumu mājsaimniecības neplāno un kopīgi nepieņem lēmumus par ilgtermiņa stratēģijām, k…
Athènes et les « Philaïdes » Formes de réciprocité entre les aristocrates et la polis
2009
This article aims at exploring the relationship between Athens and the members of the Miltiades and Cimon family, the so-called Philaids. The history of this lineage significantly marked the development of Athens in the archaic period. In spite of the contradictory traditions regarding these historical figures, a lexical analysis of the sources allows an interpretation of their relationship with the polis in terms of reciprocity. I will argue that this is a special form of reciprocity, generated by the unequal and asymmetric relationship that this family seems to have had with Athens.