An Examination of Efficacy and Resilience in College Students: Influences on Socially Responsible Leadership

My study explored socially responsible leadership and its relationship to leader efficacy and resilience in college students. The investigation also examined the role of gender and race in these relationships. The study employed the Multi-Institutional Study of Leadership (MSL), which assesses student and educational outcomes relevant to the values underlying the Social Change Model of Student Leadership. The MSL utilizes the Socially Responsible Leadership Scale (Tyree, 1998) as a foundation but also includes measures of leader efficacy and resilience. Utilizing archival data from the 2015 administration of the MSL, my sample (N=840) included equal numbers of males and females equally distributed across seven broad racial groups. The results of the analysis revealed positive relationships between socially responsible leadership capacity, leader efficacy, and resilience. Differences in socially responsible leadership capacity exists between racial groups, but not between genders. Neither gender nor race modified the relationships between leader efficacy, resilience, and socially responsible leadership capacity

Dephasing in matter-wave interferometry

We review different attempts to show the decoherence process in double-slit-like experiments both for charged particles (electrons) and neutral particles with permanent dipole moments. Interference is studied when electrons or atomic systems are coupled to classical or quantum electromagnetic fields. The interaction between the particles and time-dependent fields induces a time-varying Aharonov phase. Averaging over the phase generates a suppression of fringe visibility in the interference pattern. We show that, for suitable experimental conditions, the loss of contrast for dipoles can be almost as large as the corresponding one for coherent electrons and therefore, be observed. We analyze different trajectories in order to show the dependence of the decoherence factor with the velocity of the particles.Comment: 9 pages, 1 eps-figure. To appear in J. Phys. A: Math. Ge

Detection of Pause in a Pedestrian’s Movement on a Linear Walkway using Bluetooth Low Energy Received Signal Strength Indicator

In recent years, Bluetooth Low Energy (BLE) has amassed significant attention in several applications. Its potential, however, remains largely unexplored for understanding pedestrian behaviour. This study focuses on investigating the potential of BLE in identifying pedestrian activity in an outdoor linear walkway. We specifically examine the likelihood of detecting pauses in the movement of pedestrians on a linear walkway using the strength of the signals obtained from a BLE device carried by the pedestrian. To accomplish this, a volunteer pedestrian intentionally pauses at selected points on the chosen walkway for varying predetermined intervals. The obtained data was conditioned using a polynomial curve to reduce the impact of anomalous data and was subsequently used to detect flatness in the trend of the signals to identify a pause. This flatness was identified using a sliding window standard deviation (SD) calculation over the curve obtained through polynomial fitting. Our results indicate a strong likelihood of detecting long pauses in a pedestrian’s journey

Indication of Pedestrian’s Travel Direction Through Bluetooth Low Energy Signals Perceived by a Single Observer Device

This paper presents a study to understand the directional sensitivity of a Bluetooth Low Energy (BLE) monitoring device (Observer) and whether, using a single such Observer, the characteristics of its antenna can be used to identify the direction of a pedestrian’s movement. To comprehend the directional characteristics of the antenna of the Observer employed for this study, the device is subjected to BLE signals emitted from a BLE beacon (Broadcaster) in an anechoic chamber. The results of this study confirmed that in the clean, noiseless environment of the chamber, the antenna we employed is clearly more receptive to signals emerging from certain directions. To confirm the validity of these results in an outdoor noisy environment, we performed another experiment where BLE Received Signal Strength (RSS) values were recorded from a Broadcaster held by a stationary volunteer pedestrian at different chosen points on a linear walkway. The results suggest that the directional sensitivity of the Observer’s antenna holds true in outdoor settings. Finally, to determine the likelihood of inferring a pedestrian’s travel direction, we deployed an Observer on a linear walkway where a volunteer pedestrian was recorded each time they passed over a series of chosen location markers. Overall, the results suggest that an assertion of travel direction through this method is indicative rather than conclusive and while the directional sensitivity of the Observer can be observed in controlled environments such as an anechoic chamber, it may not be as pronounced or reliable in outdoor settings. The findings highlight the importance of considering environmental factors when analysing BLE signals to infer pedestrian direction

Decoherence induced by a fluctuating Aharonov-Casher phase

Dipoles interference is studied when atomic systems are coupled to classical electromagnetic fields. The interaction between the dipoles and the classical fields induces a time-varying Aharonov-Casher phase. Averaging over the phase generates a suppression of fringe visibility in the interference pattern. We show that, for suitable experimental conditions, the loss of contrast for dipoles can be observable and almost as large as the corresponding one for coherent electrons. We analyze different trajectories in order to show the dependence of the decoherence factor with the velocity of the particles.Comment: 13 pages, 3 figures. To appear in Phys. Rev.

Understanding high-end climate change: from impacts to co-creating integrated and transformative solutions

Editorial. The world is not yet on track to meet the Paris Agreement climate change target of keeping global average temperature rise within 2 °C above pre-industrial levels. Current greenhouse gas emission trends point to much more substantial warming, with possible increases of 4 °C or more in the long-term. This Special Issue describes findings from the IMPRESSIONS project which advanced the understanding of impacts of high-end climate change (defined as global mean temperatures > 2 °C above pre-industrial levels) and potential solutions for reducing these impacts through adaptation, mitigation and transformative actions. With stakeholders, the project developed a set of integrated climate and socio-economic scenarios and applied these to multi-sectoral impact models in five case studies: Hungary, Scotland, Iberia, Europe as a whole and Central Asia. This showed that benefits in some regions and sectors, such as increasing forest productivity in northern Europe, are offset by detrimental effects in others, such as severe water scarcity, heat stress and loss of productivity in southern Europe and parts of central and eastern Europe, and widespread flood damage. Adaptation and mitigation pathways were generated with stakeholders to address these impacts and identify integrated and transformative solutions. These highlighted the importance of shifting to sustainable lifestyles, good governance for sustainability and climate resilience, and new forms of integrated and sustainable resource management. The stakeholder-led approach of IMPRESSIONS ensured that the research was driven by the priorities of decision-makers, enabling significant co-learning and the identification of robust, innovative and effective solutions for addressing high-end climate change

The effect of Holstein-Friesian genotype and feeding system on selected performance parameters of dairy cows on grass-based systems of milk production in Ireland

End of project reportThe overall objective of this project was to assess, the effect of strain of Holstein-Friesian dairy cow, pasture-based feed system (FS) and their interaction on animal performance in terms of milk productivity and lactation profile, body weight (BW), body condition score (BCS), feed intake and energy balance (EB), reproductive performance and overall economic profitability

Spin bath interactions effects on the geometric phase

We calculate the geometric phase of a spin-1/2 particle coupled to an external environment comprising N spin-1/2 particle in the framework of open quantum systems. We analyze the decoherence factor and the deviation of the geometric phase under a nonunitary evolution from the one gained under an unitary one. We show the dependence upon the system's and bath's parameter and analyze the range of validity of the perturbative approximation. Finally, we discuss the implications of our results.Comment: 8 pages, 5 figures. Version to appear in Phys. Lett.

Identifying robust response options to manage environmental change using an ecosystem approach:a stress-testing case study for the UK

A diverse range of response options was evaluated in terms of their utility for sustaining ecosystem services in the UK. Robustness of response options was investigated by applying a ‘stress-testing’ method which evaluated expected performance against combined scenarios of socioeconomic and climate change. Based upon stakeholder feedback, a reference scenario representing current trends in climate and socioeconomic drivers (‘business-as-usual’) was used as a dynamic baseline against which to compare results of other scenarios. The robustness of response options was evaluated by their utility in different environmental and social contexts as represented by the scenarios, and linked to their adaptability to adjust to changing conditions. Key findings demonstrate that adaptability becomes increasingly valuable as the magnitude and rate of future change diverges from current trends. Stress-testing also revealed that individual responses in isolation are unlikely to be robust meaning there are advantages from integrating cohesive combinations (bundles) of response options to maximise their individual strengths and compensate for weaknesses. This identifies a role for both top-down and bottom-up responses, including regulation, spatial targeting, incentives and partnership initiatives, and their use in combination through integrated assessment and planning consistent with the adoption of an Ecosystem Approach. Stress-testing approaches can have an important role in future-proofing policy appraisals but important knowledge gaps remain, especially for cultural and supporting ecosystem services. Finally, barriers and enablers to the implementation of more integrated long-term adaptive responses were identified drawing on the ‘4 Is’ (Institutions, Information, Incentives, Identity) conceptual framework. This highlighted the crucial but usually understated role of identity in promoting ownership and uptake of responses

Offshore renewable energy and nature conservation: the case of marine tidal turbines in Northern Ireland

The global demand for renewable energy continues to increase rapidly and with it the necessity to develop and test new technologies to deliver the power. Offshore renewable energy sources that harness wind, wave or tidal power are of major interest. Technological advances in these directions have not been matched by a clear understanding of the environmental impacts of the new devices, with most existing research concentrated on the impacts of offshore wind farms. Decisions often continue to be made without the support of a clear evidence base. Here we use an underwater tidal turbine, SeaGen, constructed and operated within the Strangford Lough marine protected area in Northern Ireland, as a case study to explore the potential impacts of the turbine as points of concern and argumentation in the decision-making processes. We use information obtained from official documents and one-to-one interviews with the main stakeholders. Our results demonstrate that during the construction and operation of the turbine the perceptions and views of different stakeholders sometimes disagreed but were often surprisingly similar in relation to both likelihood and intensity of the potential impacts of the turbine on marine biodiversity, ecosystem services and human well-being in general. The overall consensus of views was refined and evolved under an adaptive management approach over the 10 years of the discussions and decision-making processes. The results are discussed in relation to cumulative gains in knowledge, future arrays of many underwater turbines and multiple use of oceans within social ecological systems to maintain the conservation of marine biodiversity