Miracle-dz/UniFAR-FTUs huggingface dataset:
Asymmetric Dual Axis Energy Recovery Linac for Ultra-High Flux sources of coherent X-ray/THz radiation: Investigations Towards its Ultimate Performance

In order for sources of coherent high brightness and intensity THz and X-Ray radiation to be accepted by university or industrial R&D laboratories, truly compact, high current and efficient particle accelerators are required. The demand for compactness and efficiency can be satisfied by superconducting RF energy recovery linear accelerators (SRF ERL) allowing effectively minimising the footprint and maximising the efficiency of the system. However such set-ups are affected by regenerative beam-break up (BBU) instabilities which limit the beam current and may terminate the beam transport as well as energy recuperation. In this paper we suggest and discuss a SRF ERL with asymmetric configuration of resonantly coupled accelerating and decelerating cavities. In this type of SRF ERL an electron bunch is passing through accelerating and decelerating cavities once and, as we show in this case, the regenerative BBU instability can be minimised allowing high currents to be achieved. We study the BBU start current in such an asymmetric ERL via analytical and numerical models and discuss the properties of such a system.
The Ecology of Fear and Climate Change: A Pragmatist Point of View

The ecology of fear has become a common rhetoric in efforts to support climate mitigation. The thesis of the collapse is an extreme version, asserting the inevitable collapse of the world. Fear, then, becomes the ultimate emotion for spurring action. In this article, drawing on the work of the pragmatist John Dewey, we show that fear is an ambiguous emotion. Dewey stressed the quality of an emotion. Following his reasoning, this article draws a distinction between intense and moderate fear. Intense fear annihilates action, while moderate fear fulfils the conditions for an emotion of quality (in the Deweyan sense), which enables action. For this reason, the thesis of the collapse must be rejected, while an ecology of fear, drawing on moderate fear, may be maintained.
The Relationship among Authentic Leadership, Trust in Coach, and Group Cohesion of College Soccer Players

The purpose of this study was to analyze the relationship among players’ perceptions of authentic leadership, trust in coach, and group cohesion. Male college soccer players responded to questionnaire items about these three factors. A total of 249 survey data were analyzed by structural equation modeling. Authentic leadership had a significant positive relationship with trust in coach and group cohesion; trust in coach had a significant positive relationship with group cohesion; and trust in coach was a mediator in the relationship between authentic leadership and group cohesion. These findings suggest when coaches are authentic leaders, athlete and team outcomes may benefit.
Effects of soil treatments and tree species on reforestation of well pads

Anthropogenically induced arrested succession is a global problem in forest ecosystems. In northern Michigan (U.S.A.), oil development has arrested succession in forest landscapes since the 1970s and oil well pads have not reforested up to 30 years after being vacated. To explore pathways for reforestation, we evaluated survivorship and growth of northern red oak (Quercus rubra), white oak (Q. alba), jack pine (Pinus banksiana), and red pine (P. resinosa) at monthly intervals during growing seasons from 2015 to 2019 on pads, which had been vacated 9–34 years prior to the initiation of our study. We planted trees in four soil surface treatments—experimental control (planting only, no treatment), disking, fertilization, and disking with fertilization. While monitoring survivorship and growth of planted trees, we concurrently examined natural reforestation in untreated control areas on each pad and differences between soil characteristics of pads and surrounding forests. Pinus resinosa displayed highest overall survivorship regardless of treatment, but maximum survivorship in disked soils and experimental control areas. Other species had highest survivorship in disked soils. There was no significant reforestation in untreated control areas during the 5‐year study period. Pads had higher levels of Bray P, Ca, and Mg, but lower levels of Fe, organic matter, and moisture than forest soils. Concentrations of toxic chemicals associated with drilling activities were not different between pad and forest soils or, if different, within acceptable levels for plant growth. In reforesting well pads, restorationists should plant P. resinosa in disked soil to achieve highest tree survivorship and density.
Leader-facilitated emotion management and perceived effectiveness: moderating roles of leader gender and culture

ABSTRACT Leader-facilitated emotion management (LEM), or behaviour aimed at helping followers regulate their negative emotion, is a key aspect of many leadership styles, yet expectations for such behaviour are likely to vary based on a leader’s gender and culture. Using archival multi-source data from a third-party provider of leadership development programmes, this study examines the cultural value of gender egalitarianism (GE), or the degree of gender role7 differentiation in a society, as a moderator of gender-based and LEM-based differences in leader effectiveness ratings. The positive relationship between LEM behaviour and leader effectiveness ratings was stronger in countries characterized as high (vs. low) on GE practice. LEM behaviour, leader gender, and country-level GE practice also exhibited a three-way interaction in relation to leader effectiveness ratings: In countries low in GE practice, the ‘boost’ in effectiveness ratings associated with high LEM behaviour was greater for female leaders than for male leaders. In countries high in GE practice, the ‘penalty’ associated with low LEM behaviour was greater for male leaders than for female leaders.
DC_102: Media Multitasking Behaviour in the Living Room: Which Factors Affect It, and How Can We Exploit It?

Due to the rapid uptake of mobile hardware in recent years, interacting with phones and tablets while watching TV has become commonplace. I am investigating the impact of this media multitasking behaviour on the traditional TV watching experience. I aim to develop a deeper understanding of how media is being consumed simultaneously so we can better de-sign and develop systems to augment and enrich this behaviour. I will begin by investigating how programme genre and structure a ﬀ ects media multitasking using a mixed-methods approach, where I will conduct a diary study and a lab-based study.
An exploration of instructors' and students' perspectives on remote delivery of courses during the COVID‐19 pandemic

Abstract The world‐wide pivot to remote learning due to the exogenous shocks of COVID‐19 across educational institutions has presented unique challenges and opportunities. This study documents the lived experiences of instructors and students and recommends emerging pathways for teaching and learning strategies post‐pandemic. Seventy‐one instructors and 122 students completed online surveys containing closed and open‐ended questions. Quantitative and qualitative analyses were conducted, including frequencies, chi‐square tests, Welch Two‐Samples t‐tests, and thematic analyses. The results demonstrated that with effective online tools, remote learning could replicate key components of content delivery, activities, assessments, and virtual proctored exams. However, instructors and students did not want in‐person learning to disappear and recommended flexibility by combining learning opportunities in in‐person, online, and asynchronous course deliveries according to personal preferences. The paper concludes with future directions and how the findings influenced our planning for Fall 2021 delivery. The video abstract for this article is available at https://www.youtube. com/watch? v=F48KBg_d8AE. Practitioner notes What is already known about this topic Emergency Remote Teaching (ERT) allowed institutions across the world to continue teaching and learning at all levels of education during the COVID‐19 pandemic. However, this form of delivery, created under conditions of uncertainty, was developed out of an urgency to keep education going rather than maintaining it at the same level. What this paper adds This study comes after ERT, and is situated between ERT and the return to campus, with some social distancing restrictions still active, in a delivery method widely viewed as “remote delivery”. This is a case study of an entire Canadian higher education institution that implemented remote learning for over one full academic year, documenting and examining instructors' and students' experiences and challenges of the remote learning course delivery format. Quantitative and qualitative data were collected to provide a holistic overview of instructors' and students' experiences of delivery method and assessments including the use of face‐tracking proctoring software. Implications for practice and/or policy Compared to ERT, remote delivery was a thoughtful and deliberate way to transform in‐person courses into virtual learning experiences. Instructors and students were able to successfully replicate many features of in‐person learning and assessments experiences in remote delivery of courses by using effective online tools to teach and learn. As a result, instructors and students called for the use of elements of remote delivery to create more flexible learning opportunities by combining in‐person, live streaming, and asynchronous learning options.
Sexual attractions and boundary crossings among sport psychology graduate students and professionals

ABSTRACT The training relationship between sport psychology professionals (SPPs) and their students is a critical aspect of graduate training. Maintaining ethical, appropriate boundaries within training relationships is imperative, as boundary crossings can have deleterious effects on students. SPPs (N = 152) and Sport Psychology graduate students (N = 165) completed The Survey of Applied Sport Psychologists to explore their experiences and perceptions of sexual attractions and boundary crossings within training relationships. Nearly 30% of SPPs acknowledged sexual attractions toward their students, yet few students (8.5%) perceived such attractions. Compared to the SPPs, the students reported higher levels of anxiety regarding the SPP’s attraction toward them; both groups reported infrequent use of supervision for this attraction. Nine students and 13 SPPs reported engaging in sexual behaviors (e.g., kissing, dating, intercourse) with the other. Within the larger sample, the three most common nonsexual boundary crossings were becoming social friends, attending social gatherings, and the SPP initiating nonsexual touching. Both groups are advised to engage in ongoing monitor their behaviors, receive training specific to ethics within training relationships, and seek consultation/supervision to ensure appropriate boundaries remain intact.
Performance of three ultrafiltration ceramic membranes in reducing polluting load of landfill leachate

The Oum Azza Landfill, which is located in the suburb of Rabat, receives daily 2,500–2,800 t of solid waste and produces 660 m3/d of landfill leachate. The leachate treatment plant of Oum Azza includes a biological pretreatment (aeration tank and anoxic tank followed by a bag filter), and a membrane processes by reverse osmosis (RO). A low RO recovery rate and frequent stops caused by membranes fouling have been observed, this behavior is mainly due to the poor quality of the effluent after pretreatment. To address this problem and improve the physico-chemical quality of the effluent upstream of the RO processes, we consider in this paper the feasibility of ultrafiltration (UF) separation as a pretreatment. The purpose of this study is to evaluate and compare the performance of three ceramic UF membranes with different pore sizes (0.02, 0.05 and 0.1 μm). The transmembrane pressure (TMP) and circulation velocity effect on the quantity and the quality of permeate and on the removal efficiency of chemical oxygen demand (COD) and suspended solid (SS) are performed. The pretreatment of the leachate by UF shows that the SS and COD retention increase with TMP for all the tested membranes and reach, for a circulation velocity of 0.5 m/s, the maximum values of 85%, 77% and 72% respectively for COD and 70.4%, 62% and 55% for SS. On the other hand, the study shows that circulation velocity has no influence on the physico-chemical quality of the permeate in the range of the applied TMP. However, for an applied TMP, the flow rate increases with the circulation velocity. The results obtained show a clear improvement in effluent quality compared to the conventional pretreatment used in the leachate treatment plant of Oum Azza but pollutants indicators contents are still high and the effluent cannot be directed to the RO unit. Three methods are proposed to perfect the quality of the effluent at the entrance of the RO unit.
Diffusion and adoption of the Long-Term Athlete Development model among Canadian coaches

The aim of the present study was to document the process of Long-term Athlete Development (LTAD) adoption by Canadian sport coaches, and to identify predictors of: 1) their attitude and intention to adopt such a social innovation, and 2) their LTAD adoption level. Using Rogers’ innovation diffusion theory, a survey of 499 Canadian coaches was conducted to identify the factors associated with three variables: coaches’ attitude towards LTAD, intention to adopt LTAD, and LTAD adoption status. 279 (56%)(35.4 ± 12.1 years) of them knew LTAD and filled out the entire questionnaire. Perceived knowledge of LTAD, its trialability, observability, intention to adopt, coaches’ certification level, and organisational support were the best predictors of LTAD model adoption level in coaching’ practice (R2=0.579, F9,184=28.32, p<0.001). Coaches in late-developing sports declared having greater knowledge of LTAD, more capacity for its implementation, and lower perceived complexity of application.
Balance sheet and income statement effect on dividend policy of private commercial banks in Ethiopia

Abstract The study analyzes the impact of balance sheet and income statement on the cash dividends of private commercial banks in Ethiopia. The independent variables employed include liquidity, asset size, leverage, and growth, which are components of the balance sheet, and profitability which is a component of both the balance sheet and the income statement during the period 2010–2020. The generalized moment (GMM) model was used to determine the most important variables that private banks consider when making dividend decisions. In addition, further tests are performed to corroborate the basic findings. Profitability, size, and liquidity are statistically significant characteristics that positively influence the dividend policy of Dashen bank, Wegagen bank, United bank, Lion international bank, Cooperative bank of Oromia, Awash international bank, Bank of Abyssinia, and Nib international bank. Growth and leverage, on the other hand, have a negative and considerable impact on the dividend policy of private commercial banks. The study suggests that the dividend policy of Ethiopian private commercial banks is influenced by both the balance sheet and the income statement. When determining dividend policy, managers of Ethiopian private commercial banks should consider profitability, asset size, liquidity, leverage, and growth.
With or against others? Pay-for-Performance activates aggressive aspects of competitiveness

ABSTRACT While paying employees for performance (PfP) has been shown to elicit increased motivation by way of competitive processes, the present paper investigates whether the same competitive processes inherent in PfP can also encourage aggressiveness. We tested our hypothesis in three studies that conceptually build on each other: First, in a word completion experiment (N = 104), we find that PfP triggers the implicit activation of the fighting and defeating facets of competitiveness. Second, in a multi-source field study (N = 94), co-workers reported more interpersonal deviance from colleagues when the latter received a performance bonus than when they did not. In our final field study (N = 286), we tested the full model, assessing the effect of PfP and interpersonal deviance mediated by competitiveness: Employees with a bonus self-reported higher interpersonal deviance towards their co-workers, which was mediated by individual competitiveness. These findings underscore that PfP can entail powerful yet widely unstudied collateral effects.
Economics of reducing Palmer amaranth seed production in dicamba/glufosinate/glyphosate‐resistant soybean

Increased prevalence of glyphosate-resistant (GR) weeds within agronomic cropping systems has led to the readoption of pre-emergence (PRE) herbicides and use of multiple herbicide-resistant soybean [ Glycine max (L.) Merr. ] cultivars. Herbicide programs were evaluated in the recently commercialized dicamba/glyphosate/glufosinate-resistant (DGGR) soybean for weed control, reduction of Palmer amaranth ( Amaranthus palmeri S. Watson) seed production, crop safety, and economic performance. At 35 days after pre-emergence herbicides, acetochlor plus dicamba plus metribuzin, acetochlor/fomesafen plus dicamba, dicamba plus flumioxazin, and imazethapyr/pyroxasulfone/saflufenacil provided 80–99% control of velvetleaf ( Abutilon theophrasti Medik.), Palmer amaranth, common lambsquarters ( Chenopodium album L.), and Poaceae species. Evaluation at 14 days after early postemergence herbicides indicated PRE followed by (fb) POST applications of mixtures of acetochlor,
Just What the Doctor Ordered: Medicinal Alcohol, Opioid Prescriptions, and the Accessibility of Folk Devils

ABSTRACT A critical component in the formation of moral panics rests on the successful construction of folk devils. The successful construction of folk devils in a moral panic has often relied on both the media and the general public vilifying those who occupy a lower social status, depicting these vilified individuals as culpable for specific social problems. This paper conducts a historical comparison between the prescription of medicinal alcohol during prohibition and the prescription of opioids during the opioid epidemic to address the question of when, and under what conditions, respected professionals get blamed for a social problem and labeled deviant. Both periods were marked by similar behavior of doctors, where some doctors prescribed these substances for profit. However, doctors during prohibition were not depicted as folk devils, nor did a moral panic ensue regarding their medicinal alcohol prescribing practices. During the opioid epidemic, pain management doctors were depicted as folk devils supporting the moral panic surrounding prescription opioids. This paper expands upon moral panics theory by demonstrating that the accessibility of folk devils influences the successful establishment of a moral panic.
Zn-dependent structural transition of SOD1 modulates its ability to undergo liquid-liquid phase separation

The toxic gain of function of Cu/Zn superoxide dismutase (SOD1) associated with the neurodegenerative disease - Amyotrophic lateral sclerosis (ALS), is believed to occur via misfolding and/or aggregation. SOD1 is also associated with stress granules (SGs) which are a type of membraneless organelle believed to form via liquid-liquid phase separation (LLPS) of several proteins containing low-complexity, disordered regions. Using a combination of experiments and computer simulations, we report here that structural disorder in two loop regions of SOD1 induced by the absence of metal cofactor - Zn, triggers its LLPS. The phase-separated droplets give rise to aggregates which eventually form toxic amyloids upon prolonged incubation. The addition of exogenous Zn to immature, metal-free SOD1 and the severe ALS mutant - I113T, stabilized the loops and restored the folded structure, thereby inhibiting LLPS and subsequent aggregation. In contrast, the Zn-induced inhibition of LLPS and aggregation was found to be partial in the case of another severe ALS-associated mutant - G85R, which exhibits reduced Zn-binding. Moreover, a less-severe ALS mutant - G37R with perturbed Cu binding does not undergo LLPS. In conclusion, our work establishes a role for Zn-dependent modulation of SOD1 disorder and LLPS as a precursor phenomenon which may lead to the formation of toxic amyloids associated with ALS. Significance Statement The formation of membraneless organelles such as stress granules (SGs) is believed to occur through the process of liquid-liquid phase separation (LLPS) and involves numerous proteins containing intrinsically disordered regions. Whether SOD1, which is also associated with SGs and whose aggregation is associated with Amyotrophic lateral sclerosis (ALS), can independently undergo LLPS, is not known. SOD1 is a metalloenzyme which is stabilized by the metal co-factor - Zn. In this work, we utilize experimental and simulation techniques to highlight the modulation of SOD1 LLPS propensity in a Zn-dependent manner due to underlying conformational transitions between folded and partially disordered states. Our work establishes a link between SOD1 LLPS and aggregation, which is relevant to ALS pathogenesis.
“Let the music play” – experimental study on background music and time preference

ABSTRACT Music plays a significant role in human life. The literature suggests that background music can influence an individual’s decision-making process. Previous studies have shown that the tempo of music can affect people’s choices about whether to prefer the present or the future when buying goods. We focused on the influence of the tempo of music on monetary time preference which is the willingness to wait for receiving money in the present compared to receiving it in a later period. In the experiment we asked participants to complete a questionnaire that included time delay questions to measure time preferences while listening to background music. Those who listened to music with a fast tempo were more likely to favour the present than those who listened to slow music or none at all. We suggest that this difference arises from an increase in people’s cognitive load that leads to a status quo bias.
Learning Multi-action Tabletop Rearrangement Policies

—The ability to rearrange a physical environment depends to varying degrees on perceptual skill, the ability to navigate unstructured environments, manipulate objects effectively, and long-horizon task planning. Previous studies on rearrangement are restricted by object-centric assumptions and either deal with sparse arrangement of objects or do not adapt to different goal conﬁgurations. We propose a feature-based method that jointly learns two action primitives and a rearrangement planning policy in a table-top setting. Two separate fully-connected networks map visual observations to actions and another deep neural network learns rearrangement planning conditioned on the goal speciﬁcation, perceptual input and selected action primitive. We directly compare our method with a state-of-the-art model in simulation and achieve comparable results on general rearrangement tasks. We show that our system can handle more challenging settings (non-singulated objects and object swaps) which the state-of-art-model cannot.