The notion of bipolar soft sets has already been defined, but in this article, the notion of bipolar soft sets has been redefined, called T-bipolar soft sets. It is shown that the new approach is ...more close to the concept of bipolarity as compared to the previous ones, and further it is discussed that so far in the study of soft sets and their generalizations, the concept introduced in this manuscript has never been discussed earlier. We have also discussed the operational laws of T-bipolar soft sets and their basic properties. In the end, we have deliberated the algebraic structures associated with T-bipolar soft sets and the applications of T-bipolar soft sets in decision-making problems.
The Bipolarity of Affect and Depressive Symptoms Dejonckheere, Egon; Mestdagh, Merijn; Houben, Marlies ...
Journal of personality and social psychology,
02/2018, Letnik:
114, Številka:
2
Journal Article
Recenzirano
Odprti dostop
People differ in the extent to which they experience positive (PA) and negative affect (NA) rather independently or as bipolar opposites. Here, we examine the proposition that the nature of the ...relation between positive and negative affect in a person's emotional experience is indicative of psychological well-being, in particular the experience of depressive symptoms, typically characterized by diminished positive affect (anhedonia) and increased negative affect (depressed mood). In three experience sampling studies, we examine how positive and negative affective states are related within people's emotional experience in daily life and how the degree of bipolarity of this relation is associated with depressive symptom severity. In Study 1 and 2, we show both concurrently and longitudinally that a stronger bipolar PA-NA relationship is associated with, and in fact is predicted by, higher depressive symptom severity, even after controlling for mean levels of positive and negative affect. In Study 3, we replicate these findings in a daily diary design, with the two conceptually related main symptoms of depression, sadness, and anhedonia, as specific manifestations of high NA and low PA, respectively. Across studies, additional analyses indicate these results are robust across different time scales and various PA and NA operationalizations and that affective bipolarity shows particular specificity toward depressive symptomatology, in comparison with anxiety symptoms. Together, these findings demonstrate that depressive symptoms involve stronger bipolarity between positive and negative affect, reflecting reduced emotional complexity and flexibility.
•Treatment resistant depression, bipolar features, association, undiagnosed bipolarity, difficult to treat depression.
In this cross-sectional study we examined whether the prevalence of treatment ...resistant depression (TRD) can be partly attributed to level of bipolarity. We included data of 201 patients with either episodic depression or TRD, who received treatment for their depression at either an outpatient or 2nd opinion/daytime setting, within a specialised mental healthcare department in the Netherlands. Whether level of TRD, assessed by the ‘Dutch Measure for quantification of Treatment Resistance in Depression’, can be partly explained by level of bipolarity, assessed by ‘the Bipolarity Index’, was examined using linear regression.
We found no direct association between level of TRD and level of bipolarity, nor did comorbid anxiety disorders obscure an existing association.
In this study we found no evidence for overlooked bipolarity contributing to the high prevalence of TRD. If replicated, we could state that additional screening on bipolarity with an instrument such as the ‘Bipolarity Index’ in the specialised mental health care is unnecessary.
Optically addressable solid-state spins are important platforms for quantum technologies, such as repeaters and sensors. Spins in two-dimensional materials offer an advantage, as the reduced ...dimensionality enables feasible on-chip integration into devices. Here, we report room-temperature optically detected magnetic resonance (ODMR) from single carbon-related defects in hexagonal boron nitride with up to 100 times stronger contrast than the ensemble average. We identify two distinct bunching timescales in the second-order intensity-correlation measurements for ODMR-active defects, but only one for those without an ODMR response. We also observe either positive or negative ODMR signal for each defect. Based on kinematic models, we relate this bipolarity to highly tuneable internal optical rates. Finally, we resolve an ODMR fine structure in the form of an angle-dependent doublet resonance, indicative of weak but finite zero-field splitting. Our results offer a promising route towards realising a room-temperature spin-photon quantum interface in hexagonal boron nitride.
In most animal cells, mitotic spindle formation is mediated by coordination of centrosomal and acentrosomal pathways. At the onset of mitosis, centrosomes promote spindle bipolarization. However, the ...mechanism through which the acentrosomal pathways facilitate the establishment of spindle bipolarity in early mitosis is not completely understood. In this study, we show the critical roles of nuclear mitotic apparatus protein (NuMA) in the generation of spindle bipolarity in acentrosomal human cells. In acentrosomal human cells, we found that small microtubule asters containing NuMA formed at the time of nuclear envelope breakdown. In addition, these asters were assembled by dynein and the clustering activity of NuMA. Subsequently, NuMA organized the radial array of microtubules, which incorporates Eg5, and thus facilitated spindle bipolarization. Importantly, in cells with centrosomes, we also found that NuMA promoted the initial step of spindle bipolarization in early mitosis. Overall, these data suggest that canonical centrosomal and NuMA‐mediated acentrosomal pathways redundantly promote spindle bipolarity in human cells.
Synopsis
Mitotic spindle formation in animal cells involves both centrosomal and acentrosomal pathways. Studies on acentrosomal human cells suggest that canonical centrosomal and NuMA/dynein‐mediated mechanisms may redundantly promote spindle biploarity early in mitosis.
NuMA promotes spindle bipolarity in the absence of centrosomes.
Dynein and the clustering activity of NuMA facilitate acentrosomal spindle pole organization.
NuMA organizes the radial array of microtubules, which incorporates kinesin Eg5 to facilitate spindle bipolarization.
NuMA also promotes the initial step of spindle bipolarization in cells with centrosomes.
Studies on acentrosomal human cells suggest that canonical centrosomal and NuMA/dynein‐mediated mechanisms may redundantly promote establishment of bipolar mitotic spindles after nuclear envelope breakdown.
Kluczem do społecznego bytu klasy średniej jest jej etos, czyli świat wyobrażeń i koniecznych złudzeń ściśle związanych z interesem klasowej reprodukcji. W warunkach współczesnego kapitalizmu świat ...ten staje się niestabilny, a niejasność społecznych szans i oczekiwań strąca klasę średnią w „chorobę braku granic” i oscylację między biegunem optymizmu, przypominającego manię, a biegunem depresyjnego zamknięcia w świecie ograniczonych możliwości. Artykuł jest analizą związków między etosem klasy średniej a współczesnymi formami psychicznego cierpienia. Wpisuje się w tradycję krytycznej analizy klasowej i posługuje narzędziami psychoanalizy oraz odwołaniami do współczesnej kultury popularnej (serialu Iluminacja), by zinterpretować znaczenie charakterystycznych dla klasy średniej afektów.
Packed with energy: Amorphous covalent triazine‐based frameworks were used as a cathode material, with the aim of developing an energy storage principle that can deliver a 2–3 times higher specific ...energy than current batteries with a high rate capability. The material undergoes a unique Faradaic reaction, as it can be present in both a p‐doped and an n‐doped state (see picture).
The idea of individual differences in ability-related emotional intelligence (ability EI) has drawn considerable interest, but little is known about how such individual differences operate. In the ...present two studies (total N = 627), it was proposed that high EI individuals are experts at evaluation, which should be evident in terms of greater bipolarity in the extent to which positive and negative evaluations predict each other. Building on procedures in the attitude literature, participants in Study 1 were asked to evaluate word objects (Study 1a) or unfamiliar faces (Study 1b). Participants scoring higher in ability EI displayed greater bipolarity in these tasks, such that within-subject correlations involving positive and negative evaluative reactions were stronger (more inverse) at higher levels of the ability EI continuum. In Study 2, employees completed multi-item job satisfaction scales that permitted the computation of both job satisfaction and job dissatisfaction scores. Multiple regression results revealed that these positive (satisfaction) and negative (dissatisfaction) evaluation scores predicted each other to a greater extent at higher levels of ability EI. Expertise in making evaluations may be key to how variations in ability EI operate.
•How do individual differences in ability emotional intelligence (EI) function?•High EI individuals may be evaluation experts, as evident in evaluative bipolarity.•In Study 1, EI predicted evaluative bipolarity in tasks involving words and faces.•In Study 2, similar results were evident in the job satisfaction domain.•Ability-related EI can be conceptualized in terms of evaluative activity.
The use of 2D materials to improve the capabilities of electronic devices is a promising strategy that has recently gained much interest in both academia and industry. However, while the research in ...2D metallic and semiconducting materials is well established, detailed knowledge and applications of 2D insulators are still scarce. In this paper, the presence of resistive switching (RS) in multilayer hexagonal boron nitride (h‐BN) is studied using different electrode materials, and a family of h‐BN‐based resistive random access memories with tunable capabilities is engineered. The devices show the coexistence of forming free bipolar and threshold‐type RS with low operation voltages down to 0.4 V, high current on/off ratio up to 106, and long retention times above 10 h, as well as low variability. The RS is driven by the grain boundaries (GBs) in the polycrystalline h‐BN stack, which allow the penetration of metallic ions from adjacent electrodes. This reaction can be boosted by the generation of B vacancies, which are more abundant at the GBs. To the best of our knowledge, h‐BN is the first 2D material showing the coexistence of bipolar and threshold RS, which may open the door to additional functionalities and applications.
The presence of resistive switching in multilayer hexagonal boron nitride (h‐BN) is studied using metallic and graphene electrodes, and a family of h‐BN‐based resistive random access memories with tunable capabilities is engineered.
People's relationship between positive and negative affect varies on a continuum from relatively independent to bipolar opposites, with stronger bipolar opposition being termed
. Experiencing more ...depressive symptoms is associated with increased bipolarity, but the processes underlying this relation are not yet understood. Here, we sought to replicate this link, and to examine the role of two potential mediating mechanisms: emotion regulation ability, and trait brooding. Drawing from the
, we hypothesised that (a) a poor ability to regulate negative emotion, and (b) the tendency to brood over one's depressed feelings would predict stronger affective bipolarity, and mediate the relationship between depressive symptoms and affective bipolarity. To measure affective bipolarity, we calculated within-person affect correlations using two weeks of experience sampling data from a community sample (
= 100). Mediation analyses indicated that baseline assessments of an inability to regulate negative emotions in general, but not brooding specifically, mediated the relation between depressive symptoms and affective bipolarity. These findings highlight an initial mechanism through which depressive symptoms are associated with lower emotional complexity and flexibility.
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