4,987 research outputs found
Software Engineering Timeline: major areas of interest and multidisciplinary trends
IngenierĂa del software. EvolucionSociety today cannot run without software and by extension, without Software Engineering. Since this discipline emerged in 1968, practitioners have learned valuable lessons that have contributed to current practices. Some have become outdated but many are still relevant and widely used. From the personal and incomplete perspective of the authors, this paper not only reviews the major milestones and areas of interest in the Software Engineering timeline helping software engineers to appreciate the state of things, but also tries to give some insights into the trends that this complex engineering will see in the near future
Coaching-Based Leadership Intervention Program: A Controlled Trial Study
In spite of the potential benefits that coaching-based leadership interventions can bring
to organizations, basic questions remain about their impact on developing coaching
skills and increasing psychological capital (PsyCap), work engagement and in- and
extra-role performance. In a controlled trial study, 41 executives and middle managers
(25 in the experimental group and 16 in the waiting-list control group) from an automotive
sector company in Spain received pre-assessment feedback, a coaching-based
leadership group workshop, and three individual executive coaching sessions over a
period of 3 months. The intervention program used a strengths-based approach and the
RE-GROW model, and it was conducted by executive coaching psychologists external
to the organization. Participants (N = 41) and their supervisors (N = 41) and employees
(N = 180) took part in a pre-post-follow up 360-degree assessment during the research
period. Quantitative data were analyzed using Analyses of Variance (ANOVA) with a
2 2 design, paired-samples t-tests, and univariate analyses between groups. Results
indicated that the intervention program was successful in increasing the participantsâ
coaching-based leadership skills, PsyCap, work engagement, and in- and extrarole
performance. Qualitative measures were also applied, and results from individual
responses provided additional support for the study hypotheses. Regarding practical
implications, the results suggest that the Coaching-based Leadership Intervention
Program can be valuable as an applied positive intervention to help leaders develop
coaching skills and enhance well-being and optimal functioning in organizations
Give Peace a Dance: An Ethnographic Research Project About a Dancing Community in Chicago and the Implications for Dance/Movement Therapy
An ethnographic research study on the monthly gathering of a Chicagoan dancing community called Give Peace a Dance (GPD). The main goal of this study was to understand the potential therapeutic aspects of dance and creative self expression in a community setting. The ethnographic data was analyzed through the lens of Community Psychology, Chacian dance/movement therapy theory and Carl Rogersâ theory of creativity. The main research question that guided the study was: How do the participants of GPD experience this event emotionally, socially and/or spiritually? At the end, community, creativity and safety were the most important factors that emerged as the healing elements of GPD. The results of this study may contribute to the development of a model for applying dance/movement therapy as community development and community activism in settings such as unsafe neighborhoods, public schools, or to support the reintegration of soldiers into society. The model may also be used by dance/movement therapists to promote a more curious, creative, collaborative, and peaceful American society that supports positive social conditions with the goal of minimizing conflict and promoting a healthier emotional integration of individuals
Community composition and depth distribution of benthic scavenging amphipods (Lysianassoidea) in sub-Arctic fjords
Master i biovitenskap - Nord universitet 202
Molecular mechanisms of cadherin function during cortical migration
During development of the cerebral cortex, different types of neurons migrate from distinct origins to create the different cortical layers and settle within them. Along their way, migrating neurons use cell adhesion molecules on their surface to interact with other cells that will play critical roles to ensure that migration is successful. Radially migrating projection neurons interact primarily with radial glia and Cajal-Retzius cells, whereas interneurons originating in the subpallium follow a longer, tangential route and encounter additional cellular substrates before reaching the cortex. Cell-cell adhesion is therefore essential for the correct migration of cortical neurons. Several members of the cadherin superfamily of cell adhesion proteins, which mediate cellular interactions through calcium-dependent, mostly homophilic binding, have been shown to play important roles during neuronal migration of both projection neurons and interneurons. Although several classical cadherins and protocadherins are involved in this process, the most prominent is CDH2. This mini review will explore the cellular and molecular mechanisms underpinning cadherin function during cortical migration, including recent advances in our understanding of the control of adhesive strength through regulation of cadherin surface levels.
Keywords: cerebral cortex, neuron, migration, cell surface, adhesion molecules, CDH2, molecular mechanis
Probing SUSY effects in
We explore supersymmetric contributions to the decay
, in light of current experimental data. The
Standard Model (SM) predicts
. We find that
contributions arising from flavour violating Higgs penguins can enhance the
branching fraction up to within different scenarios
of the Minimal Supersymmetric Standard Model (MSSM), as well as suppress it
down to . Regions with fine-tuned parameters can
bring the branching fraction up to the current experimental upper bound,
. The mass degeneracy of the heavy Higgs bosons in MSSM
induces correlations between and
. Predictions for the asymmetry
in decays in the context of MSSM are also given, and
can be up to eight times bigger than in the SM.Comment: 36 pages, 31 fig
Antecedents of academic performance of university students: academic engagement and psychological capital resources
Predicting academic performance is of key importance to the success, wellbeing and
prosperity of students, their families, the economy, and the society at large. This study
investigates the relationship between academic engagement, psychological capital (PsyCap) and
academic performance. Data were collected in two different universities, one in Spain and
another in Portugal. Students completed two self-report questionnaires regarding academic
engagement and Psychological Capital. Academic performance was assessed through Grade
Point Average, provided by the universities at the end of the exam period. The samples consisted
of 389 and 243 undergraduate students, respectively. Results showed a positive relationship
between academic engagement and PsyCap, on the one hand, and academic performance on the
other, in both samples. Results also supported PsyCap as a full mediator in the relationship
between academic engagement and academic performance. Exploration of alternative models
yielded superior fit for the proposed model. Accordingly, academically engaged students were
likely to experience higher levels of PsyCap, which in turn positively impacted their academic
performance. The results point to the importance of considering psychological predictors, rather
than the prevalent reliance on traditional predictors of academic performance
Genetic Dissection of the Signaling Cascade that Controls Activation of the <i>Shigella</i> Type III Secretion System from the Needle Tip
Many Gram-negative bacterial pathogens use type III secretion systems (T3SSs) for virulence. The Shigella T3SS consists of a hollow needle, made of MxiH and protruding from the bacterial surface, anchored in both bacterial membranes by multimeric protein rings. Atop the needle lies the tip complex (TC), formed by IpaD and IpaB. Upon physical contact with eukaryotic host cells, T3S is initiated leading to formation of a pore in the eukaryotic cell membrane, which is made of IpaB and IpaC. Through the needle and pore channels, further bacterial proteins are translocated inside the host cell to meditate its invasion. IpaD and the needle are implicated in transduction of the host cell-sensing signal to the T3S apparatus. Furthermore, the sensing-competent TC seems formed of 4 IpaDs topped by 1 IpaB. However, nothing further is known about the activation process. To investigate IpaBâs role during T3SS activation, we isolated secretion-deregulated IpaB mutants using random mutagenesis and a genetic screen. We found ipaB point mutations in leading to defects in secretion activation, which sometimes diminished pore insertion and host cell invasion. We also demonstrated IpaB communicates intramolecularly and intermolecularly with IpaD and MxiH within the TC because mutations affecting these interactions impair signal transduction
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