Validity and measurement invariance of the Unified Multidimensional Calling Scale (UMCS): A three-wave survey study

The accumulation of scientific knowledge on calling is limited by the absence of a common theoretical and measurement framework. Many different models of calling have been proposed, and we do not know how much research results that refer to a specific model are generalizable to different theoretical accounts of calling. In this article, we investigate whether two leading models of calling tackle the same construct. The two models were merged into a comprehensive framework that measures calling across seven facets: Passion, Purposefulness, Sacrifice, Pervasiveness, Prosocial Orientation, Transcendent Summons, and Identity. We then developed the Unified Multidimensional Calling Scale (UMCS) drawing from previous published items. Across two surveys involving college students (N = 5886) and adult employees (N = 205) the UMCS was proved to be valid and reliable. We also observed that the UMCS is invariant across time and calling domains. Finally, we found that facets of calling have very different relationships with outcomes and concurrent measures, suggesting that results obtained with a smaller set of facets are not generalizable to the higher-order construct of calling or to a different model that does not share the same facets. \ua9 2018 Vianello et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

The effect of X-ray dust-scattering on a bright burst from the magnetar 1E 1547.0-5408

A bright burst, followed by an X-ray tail lasting ~10 ks, was detected during an XMM-Newton observation of the magnetar 1E 1547.0-5408 carried out on 2009 February 3. The burst, also observed by SWIFT/BAT, had a spectrum well fit by the sum of two blackbodies with temperatures of ~4 keV and 10 keV and a fluence in the 0.3-150 keV energy range of ~1e-5 erg/cm2. The X-ray tail had a fluence of ~4e-8 erg/cm2. Thanks to the knowledge of the distances and relative optical depths of three dust clouds between us and 1E 1547.0-5408, we show that most of the X-rays in the tail can be explained by dust scattering of the burst emission, except for the first ~20-30 s. We point out that other X-ray tails observed after strong magnetar bursts may contain a non-negligible contribution due to dust scattering.Comment: 8 pages, 2 tables and 10 figures; accepted to publication in MNRA

The Developmental Trajectories of Calling: Predictors and Outcomes

There are many open questions concerning the development of calling, and longitudinal empirical evidence is limited. We know that a calling is associated with many beneficial outcomes, but we do not know how it changes through time and what predicts these changes. Previous studies have shown that calling is relatively stable at the sample level. We show that, at the individual level, calling shows huge variations through time. We identified nine developmental trajectories that are typical across facets of calling, and we found evidence that the development of a calling is fostered by the extent to which individuals have lived it out. We also observed that the more a calling has grown over a 2-year period, the more it is lived out during the third year. These results provide support for a developmental model of calling according to which having a calling and living it out reciprocally influence each other. The practical and theoretical implications of these results are discussed

The Developmental Trajectories of Calling: Predictors and Outcomes:

There are many open questions concerning the development of calling, and longitudinal empirical evidence is limited. We know that a calling is associated with many beneficial outcomes, but we do not know how it changes through time and what predicts these changes. Previous studies have shown that calling is relatively stable at the sample level. We show that, at the individual level, calling shows huge variations through time. We identified nine developmental trajectories that are typical across facets of calling, and we found evidence that the development of a calling is fostered by the extent to which individuals have lived it out. We also observed that the more a calling has grown over a 2-year period, the more it is lived out during the third year. These results provide support for a developmental model of calling according to which having a calling and living it out reciprocally influence each other. The practical and theoretical implications of these results are discussed

The Emotion of Admiration Improves Employees' Goal Orientations and Contextual Performance

Admiration is the other-praising emotion elicited by the display of outstanding skills, talents, or achievements. Most leadership theories state that effective leaders are ad mired role models that fo llo wers emu late. Nevertheless, no dem- onstration has been provided so far about the actual role of ad miration in the leader-follower relationship. This paper shows that leaders who display technical and managerial co mpetences motivate employees by means of the positive emotion of admiration they elicit. Specifically, we hypothesized and demonstrated that admirat ion elicited in employees by their leader's skills increases both their goal orientation to prove and imp rove their own skills and their contextual performance. In a first field experiment on 137 sales representatives we observed an indirect positive relationship between leader's skills and followers' state-goal orientations. Admiration mediated the positive effect o f leader's skills on emp loyees' motivation. In this study, we also observed a direct and detrimental impact of leaders' skills on employees learn ing and proving goal orientations. In a second, cross-sectional, study on 146 full-t ime teachers we observed that admiration -co mpared with happiness and gratitude- is the best predictor of state-learning-goal orientation and organizat ional citizenship behaviors. Implications and limits are d iscussed

Time bisection and reproduction: Evidence for a slowdown of the internal clock in right brain damaged patients

Previous studies show that the right hemisphere is involved in time processing, and that damage to the right hemisphere is associated with a tendency to perceive time intervals as shorter than they are, and to reproduce time intervals as longer than they are. Whether time processing deficits following right hemisphere damage are related and what is their neurocognitive basis is unclear. In this study, right brain damaged (RBD) patients, left brain damaged (LBD) patients, and healthy controls underwent a time bisection task and a time reproduction task involving time intervals varying between each other by milliseconds (short durations) or seconds (long durations). The results show that in the time bisection task RBD patients underestimated time intervals compared to LBD patients and healthy controls, while they reproduced time intervals as longer than they are. Time underestimation and over-reproduction in RBD patients applied to short but not long time intervals, and were correlated. Voxel-based lesion-symptom mapping (VLSM) showed that time underestimation was associated with lesions to a right cortico-subcortical network involving the insula and inferior frontal gyrus. A small portion of this network was also associated with time over-reproduction. Our findings are consistent with a slowdown of an 'internal clock' timing mechanism following right brain damage, which likely underlies both the underestimation and the over-reproduction of time intervals, and their (overlapping) neural bases

Biochemical and immunochemical similarities among mammalian bilitranslocase and a plant flavonoid translocator

Flavonoids are a large class of plant secondary metabolites, belonging to polyphenol family, which possess pharmacological and nutritional properties. Their synthesis takes place only in plants, while mammals can acquire them only with diet. It has been demonstrated that flavonoid uptake occurs in rat also by the activity of bilitranslocase, a carrier that is involved in anion transport in liver cell, vascular endothelium and gastric mucosa. A sequence of bilitranslocase interacting with flavonoid moieties is already known and characterized. Antibody raised against such protein epitope were shown to exhibit cross-reactivity against plant membrane proteins in tissues involved in flavonoid transport and accumulation, such as teguments of carnation petals and skin of grape berries. Further immunolocalization studies allowed to demonstrate the presence of cross-reacting protein not only at the level of tegumental tissues, but also associated to sieve elements and seed teguments in grape berries

A Fully Digital Relaxation-Aware Analog Programming Technique for HfOx RRAM Arrays

For neuromorphic engineering to emulate the human brain, improving memory density with low power consumption is an indispensable but challenging goal. In this regard, emerging RRAMs have attracted considerable interest for their unique qualities like low power consumption, high integration potential, durability, and CMOS compatibility. Using RRAMs to imitate the more analog storage behavior of brain synapses is also a promising strategy for further improving memory density and power efficiency. However, RRAM devices display strong stochastic behavior, together with relaxation effects, making it more challenging to precisely control their multi-level storage capability. To address this, researchers have reported different multi-level programming strategies, mostly involving the precise control of analog parameters like compliance current during write operations and/or programming voltage amplitudes. Here, we present a new fully digital relaxation-aware method for tuning the conductance of analog RRAMs. The method is based on modulating digital pulse widths during erase operations while keeping other parameters fixed, and therefore requires no precise alterations to analog parameters like compliance currents or programming voltage amplitudes. Experimental results, with and without relaxation effect awareness, on a 64 RRAM 1T1R HfOx memory array of cells, fabricated in 130nm CMOS technology, indicate that it is possible to obtain 2-bit memory per cell multi-value storage at the array level, verified 1000 seconds after programming.Comment: 5 pages, 10 figures, 2 table

Self-organization of an inhomogeneous memristive hardware for sequence learning

Learning is a fundamental component of creating intelligent machines. Biological intelligence orchestrates synaptic and neuronal learning at multiple time scales to self-organize populations of neurons for solving complex tasks. Inspired by this, we design and experimentally demonstrate an adaptive hardware architecture Memristive Self-organizing Spiking Recurrent Neural Network (MEMSORN). MEMSORN incorporates resistive memory (RRAM) in its synapses and neurons which configure their state based on Hebbian and Homeostatic plasticity respectively. For the first time, we derive these plasticity rules directly from the statistical measurements of our fabricated RRAM-based neurons and synapses. These "technologically plausible” learning rules exploit the intrinsic variability of the devices and improve the accuracy of the network on a sequence learning task by 30%. Finally, we compare the performance of MEMSORN to a fully-randomly-set-up spiking recurrent network on the same task, showing that self-organization improves the accuracy by more than 15%. This work demonstrates the importance of the device-circuit-algorithm co-design approach for implementing brain-inspired computing hardware