Search results for "POTENT"

Differential antiepileptic effects of the organic calcium antagonists verapamil and flunarizine in neurons of organotypic neocortical explants from n…

1988

Effects of the organic calcium antagonists verapamil and flunarizine on pentylenetetrazol induced paroxysmal depolarizations were tested in organotypic neocortical explants taken from neonatal rats. In these in vitro experiments the papaverin derivative verapamil depressed, and finally abolished, epileptic discharges in all cases. The piperazine derivative flunarizine, however, which is known to suppress epileptic discharges in hippocampal CA3 neurons (Bingmann and Speckmann 1986), showed no significant antiepileptic effects in the explanted neocortical neurons. Thus, the present findings may indicate that the suppressive action of flunarizine on the generation of paroxysmal depolarizations…

Experimental study of the long range interactions between a Na (3S) and a Rb (5S) atom

2005

Transitions to near asymptotic levels of the a3Σ+ and the X1Σ+ electronic states in NaRb were recorded by high resolution Fourier transform spectroscopy technique. The hyperfine splitting of the a3Σ+ state levels was analysed. The application of coupled channels calculations is discussed for determination of accurate potential energy curves of the a3Σ+ and the X1Σ+ states capable for reliable description of cold collisions between a Na and a Rb atoms in their ground states.

The Effect of Plant Water Status on the Chemical Composition of Pistachio Nuts (Pistacia vera L. Cultivar Bianca)

2020

Pistachio nuts are worldwide appreciated for their chemical and organoleptic profiles. There are several studies on the influence of irrigation on pistachio productivity, whereas there are little available data on the influence on nut quality. In this study we characterized some qualitative traits of pistachio nuts cultivar Bianca in Mediterranean environment and how plant water status affected them. Water status had a positive and significant influence on the chlorophylls content, nuts from less stressed trees showed higher values of chlorophyll a (14.7 mg/100 g) and b (21.1 mg/100 g) compared than more stressed trees (9.3 and 11.5 mg/100 g for a and b, respectively). Solid phase microextr…

Cognitive Deficits and Associated ERP N400 Abnormalities in FXTAS With Parkinsonism

2018

Objective: To examine cognitive deficits and associated brain activity in fragile X-associated tremor/ataxia syndrome (FXTAS) patients with parkinsonism (FXTp+), in relation to FXTAS patients without parkinsonism (FXTp-), and normal elderly controls (NC). Methods: Retrospective reviews were performed in 65 FXTAS patients who participated in the event-related brain potential (ERP) study and also had either a videotaped neurological examination or a neurological examination for extrapyramidal signs. Parkinsonism was defined as having bradykinesia with at least one of the following: rest tremor, postural instability, hypermyotonia, or rigidity. Eleven FXTp+ patients were identified and compare…

The Contribution of Event-Related Potentials to the Understanding of Sign Language Processing and Production in the Brain : Experimental Evidence and…

2022

Functional neuroimaging allows investigation of the timing properties of the brain mechanisms underlying covert language processing. This paper presents a review of the use of the neuroimaging technique called Event-Related Potentials (ERPs) in sign language (SL) research. In the field of neurolinguistics, ERPs have been widely used in the study of spoken language, but their use in SL is still rare. Studying the neurocognitive aspects of SL could lead to a better understanding of the specific processing of SL in the brain. This review outlines the basic theoretical and methodological principles of ERPs. We focus on three groups of ERPs that are particularly relevant to SL processing and pro…

Influence of Mn site doping on electrical resistivity of polycrystalline La1-yAyMn1-xBxO3 (A=Ba, Sr; B=Cu, Cr, Co) Manganites

2008

We have the measured electrical resistivity of La1-yBayMn1-xCuxO3 (0.17?y?0.30; 0.04?x?0.10), La1-ySryMn1-xCrxO3 and La1-ySryMn1-xCoxO3 (0.270?y?0.294; 0.02?x?0.10) polycrystalline samples in the 25-325 K temperature range. The increase of Mn site doping concentration leads to an increase of the electrical resistivity of the samples and the appearance of a ?double-peak? structure in the electrical resistivity versus temperature graphs. The first peak represents the insulator-metal transition in vicinity of the paramagnetic-ferromagnetic transition (TC). We have found that the intensity of the second peak increases with an increase of concentration of Mn substituents, due to the hole scatter…

Ground potential rise at transition poles of combined overhead-cable lines due to the fault application transfer phenomenon

2008

The premises of the evolution and development of firm competences in strategic management

2021

Purpose: The aim of the article is to identify the premises of the evolution and development of firm competences in strategic management. Design/methodology/approach: The article indicates the key role of competences in strategic management. An extensive literature review and an identification approach were used. Findings: Competences may significantly affect the achievement of the expected market and economic outcomes, as well as building a long-term competitive advantage of a firm. Practical implications: The results of the research presented in the article show the significant importance of the firm competences in strategic management and business practice. Originality/value: The most im…

FROM COMPETENCY-BASED HUMAN RESOURCES MANAGEMENT TO COMPETENCE-BASED STRATEGIC MANAGEMENT

2022

Purpose: The aim of the article is to identify the most significant assumptions and conditions for the development of the Competence-Based Strategic Management concept embedded on the assumptions and elements of the Competency-Based Human Resources Management concept. Moreover, the aim of the article is to identify the place of competences in the hierarchy of the firm success potentials in the concept of Competence-Based Strategic Management. Design/methodology/approach: The article indicates the most important stages on the road from the Competency-Based Human Resources Management concept to the Competence-Based Strategic Management concept. An extensive literature review and an identifica…

Przesłanki tworzenia przewagi konkurencyjnej w oparciu o strategiczny profil logistycznych potencjałów sukcesu przedsiębiorstwa

2018

Firms are constantly looking for ways leading to business competitive advantage creation, which is one of the most important issues within the area of strategic management. Among the factors affecting the creation of this advantage, an important place is occupied by the logistics potentials of business success, including resources, capabilities and competences related to the logistics area. The purpose of the article is to identify the premises of business competitive advantage creation, based on the so-called strategic profile of logistics potentials of success, which consists of: (1) first-order potentials, which are logistics resources, in particular the so-called key resources, constitu…