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This article explores the extent to which listeners vary in their ability to notice, identify and discriminate variable linguistic features. With a view to improving speaker evaluation studies (SES), three types of experiments were conducted (noticing tasks, identification tasks and discrimination tasks) with regard to variable features using word- or sentence-based stimuli and focusing on three variables and their variants – (ING): [ɪŋ], [ɪn]; (T)-deletion: [t], deleted-[t]; (K)-lenition: [k], [x]. Our results suggest that the accurate noticing, identifying and discriminating of variants is somewhat higher in words than in sentences. Correctness rates differ drastically between variants of a variable. For (ING), the non-standard variant [ɪn] is more frequently identified and noticed correctly. Yet, for the variables (T)-deletion and (K)-lenition, the standard variants are identified and noticed more successfully. Results of the current study suggest that a more rigorous elicitation of identification and noticing abilities might be useful for a more complete understanding of the nature of social evaluation.
Turbulent flows exhibit large intermittent fluctuations from inertial to dissipative scales, characterised by multifractal statistics and breaking the statistical self-similarity. It has recently been proposed that the Navier–Stokes turbulence restores a hidden form of scale invariance in the inertial interval when formulated for a dynamically (nonlinearly) rescaled quasi-Lagrangian velocity field. Here we show that such hidden self-similarity extends to the large-eddy-simulation (LES) approach in computational fluid dynamics (CFD). In particular, we show that classical subgrid-scale models, such as implicit or explicit Smagorinsky closures, respect the hidden scale invariance at all scales – both resolved and subgrid. In the inertial range, they reproduce the hidden scale invariance of Navier–Stokes statistics. These properties are verified very accurately by numerical simulations and, beyond CFD, turn LES into a valuable tool for fundamental turbulence research.
Humanity faces an unprecedented challenge in the necessity to rapidly change behaviors across various life domains to address multiple environmental crises, such as climate change, pollution, and biodiversity loss. This includes the behavior of individuals at work and within organizations. Industrial and organizational (I-O) psychology is uniquely positioned to provide evidence-based recommendations for changing organizational decision-making and behavior toward greater environmental sustainability. Although a substantial body of research on this topic has emerged over the past decade, the discipline has yet to realize its full potential because the topic is currently not prioritized and the practical and societal impact of previous research is limited. This article aims to propel research on environmental sustainability at work forward. To do so, it (a) outlines the interconnections between organizations and environmental sustainability; (b) portrays previous research efforts on environmental sustainability at work, resulting in an integrative conceptual framework across micro, meso, macro, and magno levels; and (c) provides actionable recommendations for high-impact future I-O psychology research and practice related to environmental sustainability. Following an “impact-first” rationale, we identified 10 areas for future research across the four levels of the conceptual framework. For each area, we present relevant theoretical perspectives, methodological approaches, and connections to related disciplines. Finally, we provide suggestions for effective science–practice transfer. Overall, the article seeks to spark discussion on this crucial topic within the community and to inspire I-O psychology researchers and practitioners to contribute to environmental sustainability.
We present a theoretical framework for porous media gravity currents propagating over rigid curvilinear surfaces. By reducing the flow dynamics to low-dimensional models applicable on surfaces where curvature effects are negligible, we demonstrate that, for finite-volume releases, the flow behaviour in both two-dimensional and axisymmetric configurations is primarily governed by the ratio of the released viscous fluid volume to the characteristic volume of the curvilinear surface. Our theoretical predictions are validated using computational fluid dynamics simulations based on a sharp-interface model for macroscopic flow in porous media. In the context of carbon dioxide geological sequestration, our findings suggest that wavy cap rock geometries can enhance trapping capacity compared with traditional flat-surface assumptions, highlighting the importance of incorporating realistic topographic features into subsurface flow models.
This case note analyzes the arbitral tribunal’s assessment in Gabriel Resources v. Romania, focusing on the investors’ “second alternative claim” that Romania’s nomination and subsequent inscription of the Roșia Montană Mining Landscape on the World Heritage List constituted a breach of its obligations under the applicable bilateral investment treaties. It examines whether the tribunal’s reasoning aligns with prior investment case law involving the World Heritage Convention, and it reflects on certain aspects of the award that may warrant closer scrutiny, particularly in light of the potential normative tensions between the protection of host states’ heritage and the rights of foreign investors.
In this work, we study the effectiveness of the time-localised principal resolvent forcing mode at actuating the near wall cycle of turbulence. This mode is restricted to a wavelet pulse and computed from a singular value decomposition of the windowed wavelet-based resolvent operator (Ballouz et al. 2024b, J. Fluid Mech. vol. 999, A53) such that it produces the largest amplification via the linearised Navier–Stokes equations. We then inject this time-localised mode into the turbulent minimal flow unit at different intensities, and measure the deviation of the system’s response from the optimal resolvent response mode. Using the most energetic spatial wavenumbers for the minimal flow unit – i.e. constant in the streamwise direction and once-periodic in the spanwise direction – the forcing mode takes the shape of streamwise rolls and produces a response mode in the form of streamwise streaks that transiently grow and decay. Though other works such as Bae et al. (2021 J. Fluid Mech. vol. 914, A3) demonstrate the importance of principal resolvent forcing modes to buffer layer turbulence, none instantaneously track their time-dependent interaction with the turbulence, which is made possible by their formulation in a wavelet basis. For initial times and close to the wall, the turbulent minimal flow unit matches the principal response mode well, but due to nonlinear effects, the response across all forcing intensities decays prematurely with a higher forcing intensity leading to faster energy decay. Nevertheless, the principal resolvent forcing mode does lead to significant energy amplification and is more effective than a randomly generated forcing structure and the second suboptimal resolvent forcing mode at amplifying the near-wall streaks. We compute the nonlinear energy transfer to secondary modes and observe that the breakdown of the actuated mode proceeds similarly across all forcing intensities: in the near-wall region, the induced streak forks into a structure twice-periodic in the spanwise direction; in the outer region, the streak breaks up into a structure that is once-periodic in the streamwise direction. In both regions, spanwise oscillations account for the dominant share of nonlinear energy transfer.
Recent functional magnetic resonance imaging (fMRI) studies have shown that interpersonal synchronization of brain activity can be measured between people sharing similar emotional, narrative, or attentional states. There is evidence that odors can modulate the activity of brain regions involved in memory, emotion and social cognition, suggesting a link between shared olfactory experiences and synchronized brain activity in social contexts.
Method:
We used fMRI to investigate the effects of a positively-valenced odor on inter-subject correlation (ISC) of brain activity in healthy volunteers watching movies. While being inside an MRI scanner, participants (N = 20) watched short movie clips to induce either positive (happiness, tenderness) or negative (sadness, fear) emotions. Two movie clips were presented for each emotional category. Participants were scanned in two separate randomized sessions, once while watching the movie clips in the presence of an odor, and once without.
Results:
When all emotional categories were combined, the odor condition showed significantly higher ISC compared to the control condition in bilateral superior temporal gyri (STG), right middle temporal gyrus, left calcarine, and lingual gyrus. When splitting the movies according to valence, odor-induced increases in ISC were stronger for the negative movies. For the negative movies, ISC in the supramarginal gyrus and STG was larger in the second compared to first movie clips, indicating a time-by odor interaction.
Conclusion:
These findings show that odor increases ISC and that its effects depend on emotional valence. Our results further emphasize the critical role of the STG in odor-based social communication.
Respite for individuals caring for family living with dementia is a common way to take personal time away from caregiving. Other than respite, there is little indication that caregivers receive adequate support from community and healthcare services. As a result, caregivers tend to experience a decline in well-being, due, in part, to a reduction in meaningful leisure experiences. The purpose of this article is to share findings from research aimed at discovering ways to enhance caregiver participation in meaningful leisure. Findings highlight how participants sacrificed their leisure time in favour of caregiving responsibilities and experienced a diminished sense of social connection. Findings also highlight how participants can have their own care needs met through leisure programming that lets them know they matter. We draw from these findings to suggest ways to direct more attention and resources to meeting caregiver needs.
We study a family of variants of Jensen’s subcomplete forcing axiom, $\mathsf {SCFA,}$ and subproper forcing axiom, $\mathsf {SubPFA}$. Using these, we develop a general technique for proving nonimplications of $\mathsf {SCFA}$, $\mathsf {SubPFA}$ and their relatives and give several applications. For instance, we show that $\mathsf {SCFA}$ does not imply $\mathsf {MA}^+(\sigma $-closed) and $\mathsf {SubPFA}$ does not imply Martin’s Maximum.
The breakup dynamics of viscous liquid bridges on solid surfaces is studied experimentally. It is found that the dynamics bears similarities to the breakup of free liquid bridges in the viscous regime. Nevertheless, the dynamics is significantly influenced by the wettability of the solid substrate. Therefore, it is essential to take into account the interaction between the solid and the liquid, especially at the three-phase contact line. It is shown that when the breakup velocity is low and the solid surface is hydrophobic, the dominant channel of energy dissipation is likely due to thermally activated jumping of molecules, as described by the molecular kinetic theory. Nevertheless, the viscous dissipation in the bulk due to axial flow along the bridge can be of importance for long bridges. In view of this, a scaling relation for the time dependence of the minimum width of the liquid bridge is derived. For high viscosities, the scaling relation captures the time evolution of the minimum width very well. Furthermore, it is found that external geometrical constraints alter the dynamic behaviour of low and high viscosity liquid bridges in a different fashion. This discrepancy is explained by considering the dominant forces in each regime. Lastly, the morphology of the satellite droplets deposited on the surface is qualitatively compared with that of free liquid bridges.
In the late nineteenth century, the orally transmitted Armenian legend about the folk hero David of Sassoun seemed doomed to oblivion when Ottoman Armenian clergyman Karekin Srvandzdiants published a tiny booklet containing the story that he had learned by chance. Srvandzdiants noted that he would be happy if the story could reach twenty people. Decades later, this hitherto little-known folk legend would be read, and its main heroes celebrated by tens of millions of citizens of the Soviet Union. Scores of variants of the epic were collected from all over the newly established Soviet Armenia; some of the most revered Soviet poets and linguists produced a collated text of the epic and translated it into dozens of languages. More importantly, David of Sassoun and other heroes of the epic cycle came to symbolize the newly forged Soviet Armenian national character in a vast totalitarian empire whose guiding ideology was inimical to various aspects of Armenian traditions. In this article, I examine the underlying messages of the epic, discuss how Soviet policies helped the epic captivate a large audience in a short period, and analyze the political calculations and ideological justifications behind the promotion of the epic.
For an ideal I in a Noetherian ring R, the Fitting ideals $\mathrm{Fitt}_j(I)$ are studied. We discuss the question of when $\mathrm{Fitt}_j(I)=I$ or $\sqrt{\mathrm{Fitt}_j(I)}=\sqrt{I}$ for some j. A classical case is the Hilbert–Burch theorem when $j=1$ and I is a perfect ideal of grade 2 in a local ring.
A model is proposed for the one-dimensional spectrum and streamwise Reynolds stress in pipe flow for arbitrarily large Reynolds numbers. Constructed in wavenumber space, the model comprises four principal contributions to the spectrum: streaks, large-scale motions, very-large-scale motions and incoherent turbulence. It accounts for the broad and overlapping spectral content of these contributions from different eddy types. The model reproduces well the broad structure of the premultiplied one-dimensional spectrum of the streamwise velocity, although the bimodal shape that has been observed at certain wall-normal locations, and the $-5/3$ slope of the inertial subrange, are not captured effectively because of the simplifications made within the model. Regardless, the Reynolds stress distribution is well reproduced, even within the near-wall region, including key features of wall-bounded flows such as the Reynolds number dependence of the inner peak, the formation of a logarithmic region, and the formation of an outer peak. These findings suggest that many of these features arise from the overlap of energy content produced by both inner- and outer-scaled eddy structures combined with the viscous-scaled influence of the wall. The model is also used to compare with canonical turbulent boundary layer and channel flows, and despite some differences being apparent, we speculate that with only minor modifications to its coefficients, the model can be adapted to these flows as well.
The article addresses the question of the distinction between voluntary and involuntary immobility under emigration restrictions. Based on semi-structured in-depth interviews with people whose family members intended to emigrate from the Polish People’s Republic and the Russian Soviet Federative Socialist Republic but who have not fulfilled their intentions, it examines the role of the would-be migrant’s agency in driving the immobility outcome under the narrow opportunity structure for international mobility. The analysis of reasons for the emigration intentions of formerly aspiring migrants having remained unfulfilled demonstrates that the boundary between voluntary and involuntary immobility – similar to that of voluntary versus forced migration – is often blurred. The studied cases suggest it is more justified to view immobility through the lens of a continuum of (in)voluntariness rather than as a voluntary-involuntary binary. Moreover, the study shows how the blurriness of the boundary between voluntary and involuntary immobility may be understood through changes over time in the reasons for the non-realization of one’s migration intentions.
Understanding the stock structure of a commercial species is essential for sustainable management. Failure to do so can lead to the depletion of regional sub-populations, erosion of genetic diversity, and ecosystem services loss. Plaice, Pleuronectes platessa, is a commercially exploited species inhabiting the continental shelf around Iceland. Despite a tagging study providing support for strong spawning site and feeding ground fidelity, and otolith microstructure analysis revealing local population structure, plaice is managed as a single stock in Icelandic waters. Here, we describe and quantify the parasite fauna of plaice and assess the potential of parasites as biological tags for stock identification of plaice in Icelandic waters. A total of 82 plaice were sampled from different geographical locations (north and south) and seasons (summer and winter) in Iceland. Our sampling identified 11 parasites, five of which are new parasite records for plaice in Icelandic waters: the trematodes Zoogonoides viviparus (adults) and Rhipidocotyle sp. (metacercariae), and the nematodes Contracaecum osculatum (larvae), Dichelyne sp. (adults), and Hysterothylacium aduncum (larvae and adults). Additionally, we recovered metacercariae of the trematode genus Apatemon, which has not been recorded previously from plaice. Two parasites were identified as potential biological tags for stock identification – namely, the nematode Anisakis simplex and the trematode Z. viviparus. Our findings support a complex stock structure for plaice in Icelandic waters and the need for an integrative strategy to stock identification to provide fine spatial scale data required to inform fisheries managers.
This article investigates the rules that were put into the mouth of the Buddha by Indian Buddhist jurists in order to differentiate monks from non-Buddhist (particularly Jaina and Ājīvika) ascetics as observed in extant Vinaya literature. It demonstrates that the Buddhist jurists were fully aware of Jaina and Ājīvika modes of asceticism, and that they consciously used legislation as a tool to construct Buddhist identity, particularly through legally differentiating the physical appearance, customs, practices, and even social status of monks from those of their śramaṇic rivals. The Buddha’s prescription of a rule to make monks distinguishable from non-Buddhist ascetics often occurs as an immediate response to the laity’s criticism or misunderstanding. This arrangement indicates that the monastic jurists were concerned not only with differentiating Buddhist and non-Buddhist renunciants, but also with protecting the public image of the Buddhist monastic institution and ultimately with maintaining the laity’s trust and support.