Search results for "Versa"

Measurement of the B0→D*−π+π−π+ branching fraction

2016

Using a sample of (470.9 +- 2.8) x 10^6 BB-bar pairs, we measure the decay branching fraction B(B^0 -> D^*- pi^+ pi^- pi^+) = (7.26 +- 0.11 +- 0.31) x 10^-3, where the first uncertainty is statistical and the second is systematic. Our measurement will be helpful in studies of lepton universality by measuring B(B^0 -> D^*- tau^+ nu_tau) using tau^+ -> pi^+ pi^- pi^+ nu-bar_tau decays, normalized to B(B^0 -> D^*- pi^+ pi^- pi^+.

β-Decay Half-Lives of 110 Neutron-Rich Nuclei across theN=82Shell Gap: Implications for the Mechanism and Universality of the AstrophysicalrProcess

2015

The $\ensuremath{\beta}$-decay half-lives of 110 neutron-rich isotopes of the elements from $_{37}\mathrm{Rb}$ to $_{50}\mathrm{Sn}$ were measured at the Radioactive Isotope Beam Factory. The 40 new half-lives follow robust systematics and highlight the persistence of shell effects. The new data have direct implications for $r$-process calculations and reinforce the notion that the second ($A\ensuremath{\approx}130$) and the rare-earth-element ($A\ensuremath{\approx}160$) abundance peaks may result from the freeze-out of an $(n,\ensuremath{\gamma})\ensuremath{\rightleftarrows}(\ensuremath{\gamma},n)$ equilibrium. In such an equilibrium, the new half-lives are important factors determining t…

Technology in mental health

2008

Mental illness has been identified as one of the greatest challenges facing society in the coming decades. However, there are significant barriers to access for many people suffering from mental illness, including overburdened public health care systems, geographic distance from point of care, difficulties encountered by individuals in engaging with services, and the stigma associated with mental illness. Technology has the potential to significantly improve access, engagement, effectiveness and affordability of treatment, yet relatively little use has been made of technology to date. Significant opportunities exist for further research and development, but the domain throws up a variety of…

Per guardare una città occorre perdere l’equilibrio

2008

Cultural institutions as agents of urban and community regeneration in the (post-)pandemic city. The case of the «Laboratorio Zen Insieme» in Palermo

2022

Although all cities in the world have been affected by the COVID-19 pandemic, its impacts on the territories, yet to be understood, are unevenly distributed, revealing extremely varied imbalances depending on the places. However, it is clear that the virus and its variants have aggravated pre-existing socio-spatial inequalities, creating new ones and bringing attention back to those implications between space, planning, public health and citizenship that are at the origins of contemporary urbanism. In a reference framework in which the crisis is globalized but unequal and in the absence of a welfare system capable of responding to the urgencies of the most marginalized social contexts and g…

Highly tunable optically switched time delay line for transversal filtering

2003

A novel tunable dispersion device, based on two chirped fibre gratings subjected to non-uniform magnetic fields, is presented. A large degree of tunability is achieved from 250 to 750 ps/nm. This is used to demonstrate RF filtering in the 3-11 GHz range.

Advanced Optical Processing of Microwave Signals

2005

The authors present a review on the recent approaches proposed to implement transversal RF filters. Different tunable transversal filters consisting of wavelength tunable optical taps and those employing the tunability of dispersive devices are presented showing their high-performance characteristics. A comprehensive review of the fundamentals and a discussion on the main limitation of these structures are also included.

El rol cambiante de los recursos personales en la empleabilidad percibida de los jóvenes en diferentes condiciones del mercado de trabajo

2020

Personal resources and labor market are factors that contribute to perceived employability. However, how changing labor market conditions affect the relationship between personal resources like career enhancing strategies, personal initiative, and career passivity with self-perceived employability remains unclear. Recent events in Spain give an opportunity to examine if personal resources predict perceived employability differently during normal and harsh labor conditions. Two representative samples of young people were surveyed during a normal labor condition (in 2008, before the big recession, n = 1,992) and a harsh condition (in 2011, with 46% young unemployment rate, n = 1,208). …

The two faces of Nordic management? Nordic firms and their employee relations in the Baltic States

2009

This study examines Nordic management styles in union and non-union industrial enterprises in the Baltic States (Estonia, Latvia, Lithuania) through case studies of nine Nordic subsidiary companies, based on on-site interviews with management and employees.1 This analysis construes the ‘Nordic model’ of management style as ‘bargained constitutional’ or ‘sophisticated consultative’, following Purcell and Ahlstrand's (1994) matrix of management styles in the highly unionized countries of origin, characterized as coordinated market economies. The case studies reveal that in the Baltic liberal-market environment, Nordic employers exhibit a variety of management styles, ranging from sophisticate…

Moment of dialogic leadership in Finnish IT organisation

2020

Purpose The purpose of this study is to describe the construction of leadership through authentic dialogues at work and leaders’ actions as contributors to dialogic leadership. Design/methodology/approach The authors collected the data by recording the organisation’s meetings and discussions and used content analysis of dialogic leadership and typifying of critical moments as analytical methods. Findings On the basis of the findings, this paper suggests that dialogic leadership begins with a startup critical moment and progresses through the different positions by manager and employees through democratic interaction. Individual and collective level learning of participants and the formatio…