Two-component nematic superconductivity in 4Hb-TaS2.

Most superconductors have an isotropic, single component order parameter and are well described by the standard (BCS) theory for superconductivity. Unconventional, multiple-component superconductors are exceptionally rare and are much less understood. Here, we combine scanning tunneling microscopy and angle-resolved macroscopic transport for studying the candidate chiral superconductor, 4Hb-TaS2. We reveal quasi-periodic one-dimensional modulations in the tunneling conductance accompanied by two-fold symmetric superconducting critical field. The strong modulation of the in-plane critical field, Hc2, points to a nematic, unconventional order parameter. However, the imaged vortex core is isotropic at low temperatures. We suggest a model that reconciles this apparent discrepancy and takes into account previously observed spontaneous time-reversal symmetry breaking at low temperatures. The model describes a competition between a dominating chiral superconducting order parameter and a nematic one. The latter emerges close to the normal phase. Our results strongly support the existence of two-component superconductivity in 4Hb-TaS2 and can provide valuable insights into other systems with coexistent charge order and superconductivity.

Defining listening: Can we get rid of the adjectives?

Listening is a complex construct studied in various fields, including psychology, education, marketing, management, and medicine. Despite its importance, there is no agreed definition of the construct. Therefore, we review existing definitions of listening, primarily recent, focusing on those that describe listening in interpersonal contexts. We identify 20 adjectives describing listening and found two underlying themes: unobservable versus observable behaviors and focusing on the speaker's or listener's interests. Focusing on the unobservable and the speaker's interest, we propose a novel, adjective-free listening definition: the degree of devotion to co-exploring the Other with and for the other. Adopting a dyadic view, we argue that either the listener or the speaker can generate such devotion and initiate the co-creation of a listening state. Our new definition can contribute to developing empirical measures with good discriminant validity.

Experiencing and witnessing disruptive behaviors toward nurses in COVID-19 teams, patient safety, and errors in care.

BACKGROUND: Nurse managers and team co-workers' disruptive behaviors (DBs) are negatively associated with a perceived safe climate. Moreover, DBs are a risk factor for patients' safety. Yet, it remains unknown whether and to what extent these effects were prevalent in COVID-19 wards and among witnesses of DBs. DESIGN: A cross-sectional study. METHODS: A questionnaire was distributed on social networks and completed by nurses in various Israeli healthcare organizations using snowball sampling between October and December 2021. The questionnaire included seven previously published measures and a question checking whether the participants had worked in a COVID-19 ward. The minimal sample size for any analysis was 236. Hypotheses were tested with correlations and structural equation modeling. RESULTS: DBs of nurse managers and team co-workers toward nurses were higher in COVID-19 teams. As hypothesized, DBs were negatively correlated with a safe climate and positively with patient safety (fewer errors). The data were consistent with a model suggesting that a safe climate is related to fewer DBs and DBs largely mediate the effects of safe climate on errors. Surprisingly and importantly, the strongest predictor of errors, including preventable mortality, is witnessing DBs and not being a victim of DBs. CONCLUSIONS: DBs may impede open communication and collaboration among co-workers, particularly in COVID-19 teams. This study shows the links between nurse shaping of a safe climate, DBs toward nurses, and patient safety. CLINICAL RELEVANCE: Nurse managers who create a safe climate and show zero tolerance for DBs could reduce the risk of errors in care.

Relationship-specific (dyadic) humility: How your humility predicts my psychological safety and performance.

A leader's expressed humility has a favorable influence on subordinates' job satisfaction, creativity, and performance. However, we know little about how humility affects one's same-level coworkers. Shifting focus away from leader's humility, we suggest that coworker humility can also produce positive effects but has a relationship-specific component. Some coworker relationships are characterized by greater expression of humility than others. Specifically, we hypothesize that when a coworker expresses a uniquely high degree of humility to another coworker (i.e., relationship-specific humility), the latter coworker experiences a uniquely high level of psychological safety (i.e., relationship-specific psychological safety), which in turn leads that coworker to perform better (i.e., relationship-specific performance). Pilot Study 1 (N = 155, in 32 teams, yielding 823 relationship-specific ratings) showed that humility has a substantial relationship-specific variance component, even in unacquainted teams. Pilot Study 2 (N = 180, in 39 teams, yielding 854 relationship-specific ratings) built on these results in a sample of moderately acquainted teams and showed that relationship-specific humility is associated with relationship-specific perceptions of performance. The Main Study (N = 133, in 32 well-acquainted work teams, yielding 555 relationship-specific ratings) tested our full model. It demonstrated that the association between relationship-specific humility and relationship-specific performance is mediated by relationship-specific psychological safety. We discuss how our findings advance humility research in the workplace by showing that a portion of humility expression is relationship-specific and stems from each employee's unique interaction with another specific person, and that such relationship-specific humility affects relationship-specific performance. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Sensory-processing sensitivity versus the sensory-processing theory: Convergence and divergence.

Two individual-difference theories focus on sensory sensitivity: one emanating from psychology-sensory-processing-sensitivity (SPS); and one from occupational therapy-sensory processing theory (SP). Each theory is coupled with its measure: the highly-sensitive-person scale (HSPS) and the adolescent adult sensory profile (ASP). The constructs of both theories were claimed to be independent of neuroticism. To assess the convergence of these measures, we recruited participants from a general population and a Facebook Group dedicated to people high in SPS. The participants, N = 1,702 M age = 26.9 (66.7% female), answered the HSPS, ASP, and neuroticism questionnaires. We subjected the HSPS and the APS to exploratory graph analysis. To assess the divergence of these measures from neuroticism, we performed meta-analyses. We also used a subsample obtained in an unrelated study, N = 490, to correlate HSPS and APS with the Big Five and additional measures. The results suggested that (a) the latent structure of these measures conforms to the theories only partially, (b) some of the sub-scales of these two measures correlated highly, r = 0.63, but low enough to suggest divergence, (c) both differentially predict membership in a Facebook group, and (d) both are not isomorphic with neuroticism. We concluded that HSPS primarily measures the emotional reaction to sensory stimulation, whereas ASP the behavioral reactions. We offer shorter yet reliable measures for both theories.

The effects of listening with "time-sharing" on psychological safety and social anxiety: the moderating role of narcissism and depression.

Listeners who interrupt speakers upset the speakers and prevent the benefits of good listening. Interruptions can be avoided with "time-sharing," where each partner listens (silently) for an equal amount of time. Yet, is time-sharing good for all? In an experiment with 50 pairs (95 participants with useable data), participants conversed freely for one minute and were then assigned either to a time-sharing (of three minutes each) or a free conversation condition. Consistent with our hypotheses, speakers in the time-sharing condition showed reduced social anxiety if they were high on narcissism but elevated social anxiety if high on depression, explaining past inconsistent effects of time-sharing.

Exposing the invader.

A restriction factor induced by interferons blocks the replication of herpesviruses by disassembling the capsid proteins surrounding their genome.

Mechanical Properties of Low-Performance Concrete (LPC) and Shear Capacity of Old Unreinforced LPC Squat Walls.

Low-performance concrete (LPC) is characterized by its low strength and commonly by the presence of large aggregates. This type of concrete was used for construction of load carrying, commonly unreinforced walls in old buildings. The resistance of these buildings with LPC squat walls (of relatively low height-to-length ratio), to in plane horizontal loads, was experimentally investigated in this study. The low compressive strength of these walls, well below that of standard concrete, requires estimation of the relation between the actual LPC compressive strength and its tensile strength, and identification of their failure mode and corresponding shear capacity when subjected to in plane horizontal loads. In this study, compressive and splitting tensile strengths of authentic LPC specimens were measured, and based on them, a relation between the compressive and tensile strengths is proposed. Then, diagonal compression tests were performed on authentic LPC specimens, as well as specimens made of standard concrete. These tests yielded the expected mode of failure of vertical cracking and their analysis shows that their shear capacity needs to be evaluated based on their tensile strength (rather than the flexural shear capacity of unreinforced concrete beams). Thus, the load-bearing (both horizontal and gravitational) capacity to prevent diagonal tension failure of an unreinforced LPC wall can be evaluated by comparing the LPC tensile strength to the major principal stress caused by the load. Assessment of the tensile strength can be based on the relation between the compressive and tensile strengths proposed in this work.

Feeling Heard: Experiences of Listening (or Not) at Work.

Listening has been identified as a key workplace skill, important for ensuring high-quality communication, building relationships, and motivating employees. However, recent research has increasingly suggested that speaker perceptions of good listening do not necessarily align with researcher or listener conceptions of good listening. While many of the benefits of workplace listening rely on employees feeling heard, little is known about what constitutes this subjective perception. To better understand what leaves employees feeling heard or unheard, we conducted 41 interviews with bank employees, who collectively provided 81 stories about listening interactions they had experienced at work. Whereas, prior research has typically characterized listening as something that is perceived through responsive behaviors within conversation, our findings suggest conversational behaviors alone are often insufficient to distinguish between stories of feeling heard vs. feeling unheard. Instead, our interviewees felt heard or unheard only when listeners met their subjective needs and expectations. Sometimes their needs and expectations could be fulfilled through conversation alone, and other times action was required. Notably, what would be categorized objectively as good listening during an initial conversation could be later counteracted by a failure to follow-through in ways expected by the speaker. In concert, these findings contribute to both theory and practice by clarifying how listening behaviors take on meaning from the speakers' perspective and the circumstances under which action is integral to feeling heard. Moreover, they point toward the various ways listeners can engage to help speakers feel heard in critical conversations.

Question asking as a dyadic behavior.

Huang, Yeomans, Brooks, Minson, and Gino (2017) studied the role of question asking in conversations. They claimed to have identified "a robust and consistent relationship between question-asking and liking" (p. 1), where liking is affected largely by follow-up questions, rather than by switch questions. They concluded that their "data support a trait-level model of question-asking behavior" (p. 12), and that "question-asking is a critical component of active listening" (p. 14). Our theoretical, methodological, and empirical reanalyses of their speed-dating study (Study 3), where liking was operationalized as being offered a second date, lead to different conclusions. Their speed-dating data conforms to an asymmetric block design, and should have been analyzed using the social relations model, to unconfound the effects of the actor, partner, dyad, and gender. Social relations modeling showed that about a third of the variance of question asking can be attributed to a trait, but that another third of the variance can be attributed to the specific dyad, and some smaller portion of the variance can be attributed to the partner's tendency to elicit question asking. Bivariate social relations modeling showed that latent scores of follow-up questions and switch questions are largely isomorphic. Finally, asking an opposite sex partner questions tends to be inversely related to being offered a second date, at least for men. Based on theory, our reanalysis, and other empirical findings, we conclude that offering a second-date is not equivalent to liking, and that question asking is different from listening. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Disruptive behaviors among nurses in Israel - association with listening, wellbeing and feeling as a victim: a cross-sectional study.

OBJECTIVES: To examine the association between listening and disruptive behaviors and the association between disruptive behavior and the wellbeing of the nurse. To test whether constructive and destructive listening has an incremental validity. METHODS: A structured questionnaire survey that measured the (constructive & destructive) listening climate at work, exposure to disruptive behaviors, well-being and feeling as a victim. We presented this survey using the Qualtrics software. RESULTS: Of the final sample of 567 respondents who reported that they were nurses, MAge = 38.41, 67% indicated that they were exposed to some form of disruptive behavior. Experiencing listening in the ward was associated with low levels of exposure to disruptive behaviors; exposure to disruptive behaviors, in turn, predicted reduction in the nurses' wellbeing; the reduction in wellbeing was especially pronounced among nurses who felt like a victim. Each of the facets of the listening measure-constructive listening and destructive listening-had incremental validity in predicting exposure to disruptive behaviors. Finally, the effect of exposure to disruptive behavior on wellbeing was curvilinear. CONCLUSIONS: Disruptive behavior is a major challenge to the workplace well-being for nurses. The victim mentality has an adverse impact on nurses. Preventive efforts aimed at reducing disruptive behaviors among nurses and decreasing their sense of victimization are crucial for the well-being of nurses.

The Listener Sets the Tone: High-Quality Listening Increases Attitude Clarity and Behavior-Intention Consequences.

We examined how merely sharing attitudes with a good listener shapes speakers' attitudes. We predicted that high-quality (i.e., empathic, attentive, and nonjudgmental) listening reduces speakers' social anxiety and leads them to delve deeper into their attitude-relevant knowledge (greater self-awareness). This, subsequently, differentially affects two components of speaker's attitude certainty by increasing attitude clarity, but not attitude correctness. In addition, we predicted that this increased clarity is followed by increased attitude- expression intentions, but not attitude- persuasion intentions. We obtained consistent support for our hypotheses across five experiments (including one preregistered study), manipulating listening behavior in a variety of ways. This is the first evidence that an interpersonal variable, unrelated to the attitude itself, can affect attitude clarity and its consequences.

High-performance concrete engineered for protective barriers.

This paper reviews the effects of high-performance concrete mix ingredients on its resistance to impact of non-deforming projectiles, and on the resistance of layered barriers, engineered based on these findings. First, the reported effects of the aggregate types and sizes and the application of steel fibres, which were observed experimentally, are presented, considering resistance parameters that include the impact energy at the ballistic limit, the extent of the damaged areas at the impacted (front) and rear faces and the overall damage. These findings indicate that a protective barrier may be engineered to have layers that utilize these effects to produce a better performance under impact. Results from reported experiments of double-layered specimens, which examined the effects of the aggregate size and application of fibres, confirm this idea to a certain extent. They lead to conclusions regarding the importance of fibres in mitigating the damage, the use of large aggregates in a thicker front layer and their associated effect on increasing the damage at the front, impacted face. A 'resistance index' is proposed to quantify the resistance in a comprehensive way and the experimental results have been re-evaluated in view of this parameter.This article is part of the themed issue 'Experimental testing and modelling of brittle materials at high strain rates'.

I Am Aware of My Inconsistencies but Can Tolerate Them: The Effect of High Quality Listening on Speakers' Attitude Ambivalence.

We examined how listeners characterized by empathy and a non-judgmental approach affect speakers' attitude structure. We hypothesized that high quality listening decreases speakers' social anxiety, which in turn reduces defensive processing. This reduction in defensive processing was hypothesized to result in an awareness of contradictions (increased objective-attitude ambivalence), and decreased attitude extremity. Moreover, we hypothesized that experiencing high quality listening would enable speakers to tolerate contradictory responses, such that listening would attenuate the association between objective- and subjective-attitude ambivalence. We obtained consistent support for our hypotheses across four laboratory experiments that manipulated listening experience in different ways on a range of attitude topics. The effects of listening on objective-attitude ambivalence were stronger for higher dispositional social anxiety and initial objective-attitude ambivalence (Study 4). Overall, the results suggest that speakers' attitude structure can be changed by a heretofore unexplored interpersonal variable: merely providing high quality listening.

Feedback, the various tasks of the doctor, and the feedforward alternative.

OBJECTIVES: This study aims to alert users of feedback to its dangers, explain some of its complexities and offer the feedforward alternative. METHODS: We review the damage that feedback may cause to both motivation and performance. We provide an initial solution to the puzzle of the feedback sign (positive versus negative) using the concepts of promotion focus and prevention focus. We discuss additional open questions pertaining to feedback sign and consider implications for health care systems. RESULTS: Feedback that threatens the self is likely to debilitate recipients and, on average, positive and negative feedback are similar in their effects on performance. Positive feedback contributes to motivation and performance under promotion focus, but the same is true for negative feedback under prevention focus. We offer an alternative to feedback--the feedforward interview--and describe a brief protocol and suggestions on how it might be used in medical education. CONCLUSIONS: Feedback is a double-edged sword; its effective application includes careful consideration of regulatory focus and of threats to the self. Feedforward may be a good substitute for feedback in many settings.

Sabbatical leave: who gains and how much?

A rigorous quasi-experiment tested the ameliorative effects of a sabbatical leave, a special case of respite from routine work. We hypothesized that (a) respite increases resource level and well-being and (b) individual differences and respite features moderate respite effects. A sample of 129 faculty members on sabbatical and 129 matched controls completed measures of resource gain, resource loss, and well-being before, during, and after the sabbatical. Among the sabbatees, resource loss declined and resource gain and well-being rose during the sabbatical. The comparison group showed no change. Moderation analysis revealed that those who reported higher respite self-efficacy and greater control, were more detached, had a more positive sabbatical experience, and spent their sabbatical outside their home country enjoyed more enhanced well-being than others.

Equilibrium first-order melting and second-order glass transitions of the vortex matter in Bi2Sr2CaCu2O8.

The thermodynamic phase diagram of Bi2Sr2CaCu2O8 was mapped by measuring local equilibrium magnetization M(H,T) in the presence of vortex shaking. Two equally sharp first-order magnetization steps are revealed in a single temperature sweep, manifesting a liquid-solid-liquid sequence. In addition, a second-order glass transition line is revealed by a sharp break in the equilibrium M(T) slope. The first- and second-order lines intersect at intermediate temperatures, suggesting the existence of four phases: Bragg glass and vortex crystal at low fields, glass and liquid at higher fields.

'Inverse' melting of a vortex lattice.

Inverse melting is the process in which a crystal reversibly transforms into a liquid or amorphous phase when its temperature is decreased. Such a process is considered to be very rare, and the search for it is often hampered by the formation of non-equilibrium states or intermediate phases. Here we report the discovery of first-order inverse melting of the lattice formed by magnetic flux lines in a high-temperature superconductor. At low temperatures, disorder in the material pins the vortices, preventing the observation of their equilibrium properties and therefore the determination of whether a phase transition occurs. But by using a technique to 'dither' the vortices, we were able to equilibrate the lattice, which enabled us to obtain direct thermodynamic evidence of inverse melting of the ordered lattice into a disordered vortex phase as the temperature is decreased. The ordered lattice has larger entropy than the low-temperature disordered phase. The mechanism of the first-order phase transition changes gradually from thermally induced melting at high temperatures to a disorder-induced transition at low temperatures.