Search results for " Positive"

Identification of Replicator Mutator models

2006

The complexity of biology literally calls for quantitative tools in order to support and validate biologists intuition and traditional qualitative descriptions. In this paper, the Replicator-Mutator models for Evolutionary Dynamics are validated/invalidated in a worst-case deterministic setting. These models analyze the DNA and RNA evolution or describe the population dynamics of viruses and bacteria. We identify the Fitness and the Replication Probability parameters of a genetic sequences, subject to a set of stringent constraints to have physical meaning and to guarantee positiveness. The conditional central estimate is determined in order to validate/invalidate the model. The effectivene…

EMOTIONAL WELL-BEING IN SCHOOLS

2018

The goal of the paper was to research the emotional well-being of students, teachers, and factors that impact it using quantitative research methods. Research was a case study and reflects a situation in one particular school. Emotional well-being plays an important role in personality development. Presence or absence of emotions like joy, satisfaction, trust, and reliance determines the perception, thinking, and actions of students. Positive emotions cause energetic and functional mobilization of the central nervous system and the whole human organism, promotes purposeful actions by connecting cognitive processes with fulfillment of student’s current needs. Emotions either enable or disabl…

Linking employer branding orientation and firm performance: Testing a dual mediation route of recruitment efficiency and positive affective climate

2019

Faced with competitive labor markets, firms increasingly use employer branding to build a qualified workforce and engage their employees. However, our understanding of the impact of employer branding orientation on firm performance and the theoretical firm‐level mechanisms underlying this potential impact is very limited. To address this gap, we integrate brand marketing theory with human resource management (HRM) research to develop a model explicating how employer branding orientation is linked to firm performance through a dual route by enhancing both recruitment efficiency (i.e., external route: applicants) and positive affective climate (i.e., internal route: incumbent employees). The …

Positive L1 observer design for positive Switched systems

2014

Published version of an article in the journal: Circuits, Systems, and Signal Processing. Also available from the publisher at: http://dx.doi.org/10.1007/s00034-013-9737-6 This paper investigates the problem of L1 observer design for positive switched systems. Firstly, a new kind of positive L1 observer is proposed for positive switched linear delay-free systems with observable and unobservable subsystems. Based on the average dwell time approach, a sufficient condition is proposed to ensure the existence of the positive L1 observer. Under the condition obtained, the estimated error converges to zero exponentially, and the L1 -gain from the disturbance input to the estimated error is less t…

Tutela antidiscriminatoria: el principio de igualdad y el derecho a la no discriminación por razón de sexo en las relaciones laborales

2016

V gamma 9V delta 2 T lymphocytes efficiently recognize and kill zoledronate-sensitized, imatinib-sensitive, and imatinib-resistant chronic myelogenou…

2010

Abstract Imatinib mesylate (imatinib), a competitive inhibitor of the BCR-ABL tyrosine kinase, is highly effective against chronic myelogenous leukemia (CML) cells. However, because 20–30% of patients affected by CML display either primary or secondary resistance to imatinib, intentional activation of Vγ9Vδ2 T cells by phosphoantigens or by agents that cause their accumulation within cells, such as zoledronate, may represent a promising strategy for the design of a novel and highly innovative immunotherapy capable to overcome imatinib resistance. In this study, we show that Vγ9Vδ2 T lymphocytes recognize, trogocytose, and efficiently kill imatinib-sensitive and -resistant CML cell lines pre…

Comparison between the MHFEM formulation and a 2nd spatial order FV formulation of the linear ground problem

2008

Comparison of different 2nd order formulations for the solution of the 2D groundwater flow problem over irregular triangular meshes

2009

Mixed and Mixed Hybrid Finite Elements (MHFE) methods have been widely used in the last decade for simulation of groundwater flow problem, petroleum reservoir problems, potential flow problems, etc. The main advantage of these methods is that, unlike the classical Galerkin approach, they guarantee local and global mass balance, as well the flux continuity between inter-element sides. The simple shape of the control volume, where the mass conservation is satisfied, makes also easier to couple this technique with a Finite Volume technique in the time splitting approach for the solution of advection-dispersion problems. In the present paper, a new MHFE formulation is proposed for the solution …

La disciplina statale dell'immigrazione tra profili di criticità costituzionale e diritto vivente alla luce di alcune recenti vicende normative

2021

La disciplina statale dell'immigrazione non è riuscita a risolvere le aporie connesse allo squilibrio tra diritti umani ed esercizio del potere pubblico statuale: ciò rende necessaria un'interpretaziine adeguatrice che è operata dalla giurisdizioni coinvolte. Il diritto di matrice giurisprudenziale si sovrappone così al diritto positivo, sostituendosi ad esso con modalità che interrogano sui limiti del diritto vivente anche con riguardo al ruolo della Corte costituzionale. L'ultimo intervento normativo in materia, il D.L. n. 130/2020, non ha eliminato tutte le incertezze ed ambiguità della disciplina preesistente, essendosi limitato il legislatore a recepire, con alcune correzioni minimali,…

Brain responses of dysphoric and control participants during a self‐esteem implicit association test

2021

Previous studies have reported lowered implicit self‐esteem at the behavioral level among depressed individuals. However, brain responses related to the lowered implicit self‐esteem have not been investigated in people with depression. Here, event‐related potentials were measured in 28 dysphoric participants (individuals with elevated amounts of depressive symptoms) and 30 control participants during performance of an implicit association task (IAT) suggested to reflect implicit self‐esteem. Despite equivalent behavioral performance, differences in brain responses were observed between the dysphoric and the control groups in late positive component (LPC) within 400–1,000 ms poststimulus lat…