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Contingent responses in which caregiver and child build on each other’s positive behavior may attenuate the deleterious effects of early adversity on youth mental health and neuroendocrine functioning. 159 caregiver–child dyads (child age: 6–16 years; 50.9% male; 44.6% adversity-exposed in stable arrangements with adoptive caregivers) participated in a 6-min conflict resolution task, which was coded for second-by-second changes in caregivers’ and children’s behavior (κ’s >0.78). Caregivers reported on their child’s mental health problems; youth hair cortisol concentration was obtained. Caregiver contingent responses to their children (i.e., responding to their partner’s positive social communication with active efforts to facilitate emotion regulation and/or problem-solving) attenuated the effects of adversity on child anxiety and conduct disorder symptoms. Stronger positive child contingent responses to their caregivers attenuated the effects of adversity on child depressive, attention-deficit/hyperactivity disorder symptoms, and oppositional defiant symptoms. Positive contingent transactions are health-promotive interaction sequences that could be targeted in transdiagnostic intervention programs.
Instrumental activities of daily living (iADLs) are critical in aging and neurodegenerative research, both diagnostically (e.g., distinguishing dementia from mild cognitive impairment) and as endpoints for trials maintaining or improving functioning. However, measurement has not consistently kept pace with a changed world wherein the ability to navigate technology is pertinent to maintaining independent functioning. The current study used harmonization approaches to link traditional and technological iADLs measures using two samples.
Methods:
262 individuals (53.4% women, 91.7% non-Hispanic White, Mage = 76.2, Meducation = 15.6) completed both measures: (1), the Functional Activities Questionnaire (FAQ), and (2), the new Expanded FAQ. Item response theory (IRT) analyses extracted item parameters to characterize measure psychometrics and accurately determine individual functional ability. Harmonization was done using both nonequivalent groups anchor test (NEAT) and equipercentile linking methods with supplementary traditional iADL parameter estimates from the National Alzheimer Coordinating Center (n = 48,605).
Results:
Correlations verified the measures were sufficiently related (rs = .79), and confirmatory factor analyses and reliability determined all items assessed a single construct. Items from both measures complemented each other to provide more information about milder and more severe functional change. NEAT models converged to provide IRT linking equations and equipercentile conversation tables.
Conclusion:
This study provides critical information for harmonizing evolving technological iADLs with traditional iADLs that are assessed in longstanding cohorts. It further provides support for use of an expanded FAQ.
Despite repeated calls for action from various sources, peatland archaeological sites continue to deteriorate; the passive strategy of preservation in situ is failing. Here, the authors consider four challenges to peatland preservation—physical degradation, mapping and monitoring of sites, communication, and policy frameworks—with climate change ultimately causing further problems. Drawing on positive policy developments in England, they argue that advocacy for peatland archaeology needs to be louder and clearer: archaeology must become an integral consideration in all climate-change mitigation and land-use planning, rather than an afterthought, if the fragile heritage of European peatlands is to be preserved.
Non-compete clauses (NCCs) are widely used and discussed, but often too narrowly. While conventional accounts focus on the benefits of NCCs to employers, Harrison Frye has proposed that they can also serve employees by acting as a clear, costly signal. I argue that both views rely on an overly narrow analysis. A wider view shows that NCCs cause market failures, undermining their utility as protective or signalling devices. Because of these negative effects, I extend Frye’s account to argue that NCCs should be used only as targeted interventions under exceptional conditions, if they are used at all.
Building on the premise that etiquette (adab-ı muaşeret) is a crucial component in understanding Turkish cultural modernization, this article examines how the Turkish military incorporated Western manners during the Republican era. While the military’s role in supporting Westernization is well documented, less scholarly attention has been paid to the internalization and practice of Western cultural norms, particularly etiquette, within military circles. Conceptualizing manners as a disciplined and refined mode of conduct, this study investigates how Western etiquette was transmitted to military officers and integrated into their personal and professional lives. The article argues that, although military texts on etiquette presented Western manners as essential to social status and modernization, their implementation was characterized by selective adoption, ambiguity, and even resistance. These texts, often compiled by officers themselves, reflect both a desire to assert cultural authority and the complex, negotiated process of Westernization. Drawing on two primary sources – etiquette manuals and officers’ self-narratives – the study illuminates the contested and dynamic nature of adopting Western norms. This dual approach highlights the formation of a cultural identity among officers marked by eclecticism and ambivalence, revealing broader tensions within the Turkish modernization project.
Perry Hendricks (2025) argues that theism is not only compatible with what he calls ‘pointless atheism’ (instances of non-resistant non-belief that do not serve a greater good) but also makes it expected. His case combines the Responsibility Objection (RO) – the view that God permits non-resistant non-belief because it’s required for theists to bear responsibility for bringing others into relationship with God – with a William Hasker-inspired argument concerning motivation and rationality. Hendricks’s core argument can be expressed in two distinct yet interrelated ways: a ‘motivation’ formulation and a ‘rationality’ formulation. I examine each in turn. I argue that, even granting (RO) and the rest of Hendricks’s assumptions, each formulation fails. (RO), together with a few further assumptions to which Hendricks also seems committed, leads to conclusions that undermine rather than support his argument. Thus, we have at least as much reason to reject as to accept his conclusion, and without further clarification and support, his case remains incomplete.
The path followed since Faraday’s first observations of acoustic streaming has led to a modern picture of this field as split into separate panels of a tryptic: standing acoustic waves in a channel with uniform background density, known as Rayleigh–Schlichting streaming, with stratified background density, known as baroclinic streaming, and acoustic waves progressing far from the walls under the shape of an attenuated beam, known as Eckart streaming. In their theoretical work, Mushthaq et al. (2025 J. Fluid Mech.1017, A32) describe in a single continuous parameter space both Rayleigh–Schlichting and baroclinic streaming, thus making a decisive step forward in the frontier between two of these panels. Dealing with a stratification of thermal origin, they identify the level of heating above which baroclinic streaming becomes of the same order of magnitude or greater than Rayleigh–Schlichting streaming. They also depict the major part played by the channel size to wavelength ratio in this problem. This work will be of great help in designing the next generation of experiments concerning acoustic streaming and acoustic management of heat transfer. It is of interest for engineering fields like microfluidics, electronics cooling and biomedical applications. It can also serve as an inspiring basis for academic works in which waves are crossed with stratification.
The process of admitting new members to the United Nations has historically been contentious and contradictory. This paper examines new membership through the lens of recognition, focusing on the historical case of Canada’s role in this debate between 1955 and 1962. Canada led the initiative to grant membership to 16 members in 1955 and supported new membership for 17 others (including former French colonies) in 1960. Simultaneously, it opposed resolutions in the UN General Assembly supporting Algerian independence from France . The concept of recognition helps explain this inconsistency, while this case also reveals much about recognition itself. I argue that recognition, both thick and thin, can be multidirectional, in that granting recognition to another state is part of that state’s own struggle for recognition. In 1955 and 1960, Canada granted thin recognition to new members, which had implications for its own struggle for thick recognition. With Algerian independence, this was a debate about thick recognition for Algeria and for France; Canada’s complex struggle for thick recognition also drove its resistance to recognizing Algeria.
Cardiovascular surgeries can be lifesaving, but mediastinitis following these procedures results in increased morbidity and mortality. We sought to increase the number of days between cases of mediastinitis at our institution from an average of 58 to greater than 223 days, the upper control limit of our baseline data.
Design:
Quality improvement initiative.
Setting:
Freestanding pediatric hospital.
Methods:
We convened a multidisciplinary team to identify potential interventions. As many infections were not captured by the Solutions for Patient Safety definition, we monitored mediastinitis cases using the Society of Thoracic Surgeons definition. Our outcome measure was cases of mediastinitis. Plan-Do-Study-Act cycles were completed within our operating rooms (ORs) and cardiac care unit (CCU). We tracked measures on statistical process control charts and with descriptive statistics.
Results:
From a baseline of 58 days, our hospital has gone over 450 days without a case of mediastinitis. No special causes were noted in our balancing measures. All process measures showed improvement.
Conclusions:
A series of OR- and CCU-based interventions significantly increased the amount of time between our cases of mediastinitis. This work highlights the importance of engaging both OR and postoperative stakeholders in proactive mediastinitis prevention work.
This study employed a cross-lagged panel network model to examine the longitudinal relationships between problems of sleep, internalizing and externalizing problems in adolescents.
Methods:
This study gathered data at four different time points (T1, T2, T3, and T4) for students enrolled in Grades 7 and 8, with an interval of approximately six months between each time point. The present sample comprised 1,281 Chinese adolescents, including 636 girls, with a mean age of 12.73 years (SD = 0.68) at baseline. Cross-lagged panel network modeling was used to estimate longitudinal relationships between symptoms at adjacent time points. Network replicability was assessed by comparing the T1→T2 network with the T2→T3 network and the T2→T3 network with the T3→T4 network.
Results:
The anxious/depressed symptom emerged as the most predictive of other symptoms and were also the most prospectively influenced by other symptoms. Cross-cluster edges predominantly flowed from internalizing and externalizing symptoms to sleep problems. Additionally, externalizing symptoms exhibited distinct patterns: aggression predicted more sleep and internalizing symptoms, whereas delinquent behavior predicted fewer of these issues.
Conclusions:
These findings suggest that mental health problems contribute to later sleep disturbances, with internalizing symptoms playing a central role in adolescent psychopathology.
Direct numerical simulations of two-phase, free-surface flow past a fully submerged, fixed circular cylinder are conducted for transitional Reynolds numbers $400 \leqslant {\textit{Re}} \leqslant 2000$, with Weber number ${\textit{We}} = 1000$, Froude number ${\textit{Fr}} = 1$ and a fixed gap ratio $G = 0.5$. This parameter combination corresponds to the gas entrainment regime characterised by the production of multiscale gas bubbles through interface breakup in the wake, which is of particular interest for its implications in enhancing gas transfer and mixing in environmental and engineering flows, such as air–water gas exchange processes in rivers and oceans, and the design and performance of naval and offshore structures. For ${\textit{Re}}= 400$, the jet forced through the $0.5D$ gap where $D$ is the diameter of the cylinder, efficiently convects opposite-signed vorticity downstream, suppressing the classical von Kármán instability and yielding a quasisteady recirculation bubble. The jet’s stabilising influence, however, breaks down once ${\textit{Re}} \approx 500$: periodic vortex shedding re-emerges and the wake becomes unsteady in spite of the continuing jet. The corresponding dimensionless shedding frequency Strouhal number $St$ grows with ${\textit{Re}}$ as $0.52-72.7{\textit{Re}}^{-1}$. The onset of unsteadiness first shortens the mean separation length but then drives it towards a saturation plateau for higher ${\textit{Re}}$ values. Surface rupture in the turbulent wake fragments entrained air into a multiscale bubble population whose number density follows $S_b(R_{\textit{eff}}) \propto R_{\textit{eff}}^{-6}$, consistent with gravity–capillary breakup in breaking waves, where $R_{\textit{eff}}$ represents the effective radii of the bubbles. Intermittency in entrainment corresponding to vortex shedding contrasts sharply with the finger-like structures observed under laminar conditions, underscoring the role of turbulent mixing. The coupled analysis of vorticity transport, shear-layer instability and bubble statistics elucidates how momentum exchange and air entrainment over a submerged body are governed under non-turbulent and turbulent conditions.
Maternal affect contributes to children’s psychosocial adjustment. How maternal daily affect intensity and dynamics (i.e., inertia and variability) are associated with adolescents’ psychopathological symptoms, however, remains unclear. This preregistered study examined (1) associations of maternal day-to-day positive and negative affect intensity, inertia, and variability with psychopathological symptoms in adolescence and young adulthood, and (2) how mother–adolescent affect congruency moderates these associations. Mother–adolescent dyads (N = 488) reported positive and negative affect in 75 daily assessments across ages 13 – 17 years. Adolescents rated their psychopathological symptoms at ages 14 – 18, 20, and 27 years. Maternal affect intensity was associated with adolescent psychopathological symptoms, while maternal affect dynamics were inconsistently associated with symptoms in young adulthood. Mother–adolescent affect congruency only moderated the effects of positive affect intensity and variability, in that high-congruent adolescents reported lower internalizing symptoms at age 20 than low-congruent adolescents. No other interaction effects were found. While maternal affect intensity and dynamics seem to contribute to youth psychopathology, evidence for the role of mother–adolescent affect congruency remained limited.
The aim was to document sociodemographic and clinical data of patients with musculoskeletal injuries who applied to the Physical Medicine and Rehabilitation clinic after the earthquake, to share experiences, and thus contribute to preparation for subsequent disasters.
Methods
The study was planned as retrospective, cross-sectional, and analytic. A total of N = 230 earthquake victims, 105 (45.7%) males and 125 (54.3%) females, aged between 1 and 79, were included in our study.
Results
Regarding injury location, the lower extremity was primarily affected with N = 125 (54.3%). The number of amputated patients was N = 29 (12.6%), and the most common location was transfemoral amputation with N = 14 (6.1%) patients. The number of fractures was N = 130 (56.5%), and the most common fracture site was the lower extremity in N = 66 (28.7%) patients. N = 162 (70.4%) of the patients had soft tissue injuries. There was peripheral nerve damage in N = 76 (33%) of the earthquake victims; the most frequently damaged nerve was the peroneal nerve in N = 36 (15.7%) patients. A vertebral fracture was present in N = 9 (3.9%) patients, and the most frequently fractured vertebra was the lumbar vertebra in 11 (4.8%) patients.
Conclusion
Defining the profiles of patients with musculoskeletal injuries in the early period, determining their needs, and including them in the rehabilitation program will ensure successful functional gain.
Goldman (2001) asks how novices can trust putative experts when background knowledge is scarce. We develop a reinforcement-learning model, adapted from Barrett, Skyrms, and Mohseni (2019), in which trust arises from experience rather than prior expertise labels. Agents incrementally weight peers who outperform them. Using a large dataset of human probability judgments as inputs, we simulate communities that learn whom to defer to. Both a strictly individual-learning variant and a reputation-sharing variant yield performance-sensitive deference, the latter accelerating convergence. Our results offer an empirically grounded account of how communities identify and trust experts without blind deference.
Statistical structure and the underlying energy budget of wall-shear-stress fluctuations are studied in both Poiseuille and Couette flows with emphasis on its streamwise component. Using a dimensional analysis and direct numerical simulation data, it is shown that the spectra of streamwise wall dissipation for $\lambda \lesssim 1000 \delta _\nu$ are asymptotically invariant with the Reynolds number (${\textit{Re}}$), whereas those for $\lambda \gtrsim \delta$ decay with ${\textit{Re}}$ (here, $\lambda$ is a nominal wall-parallel wavelength, and $\delta _\nu$ and $\delta$ are the viscous inner and outer length scales, respectively). The wall dissipation increases with ${\textit{Re}}$ due to the increasing contribution of the spectra at $1000 \delta _\nu \lesssim \lambda \lesssim \delta$. The subsequent analysis of the energy budget shows that the near-wall motions associated with these wall-dissipation spectra are driven mainly by turbulent transport and are ‘inactive’ in the sense that they contain very little Reynolds shear stress (or turbulence production). As such, turbulent-transport spectra near the wall are also found to share the same ${\textit{Re}}$-scaling behaviour with wall dissipation, and this is observed in the spectra of both the wall-normal and inter-scale turbulent transports. The turbulent transport underpinning the increase of wall dissipation with ${\textit{Re}}$ is characterised by energy fluxes towards the wall, together with inverse energy transfer from small to large length scales along the wall-parallel directions.
We highlight the complete transition from liquid-wall-film instability of an annular gas–liquid flow inside a nozzle to spray formation at the trailing edge, aiming to identify two distinct flow regimes of ripple waves and disturbance waves and to clarify their distinct fragmentation mechanisms. Experiments conducted under strictly controlled boundary conditions support our theoretical analysis, revealing that the onset of disturbance waves coincides with the liquid-film Weber number (${\textit{We}}$) of unity, marking a significant change in following fragmentation dynamics. For ${\textit{We}}\lt 0.5$, the liquid wall film forms three-dimensional ripple waves driven by the superposition of Kelvin–Helmholtz and Rayleigh–Taylor (RT) instabilities, with no disturbance waves present. At the trailing edge, the liquid film temporarily accumulates, extends into isolated ligaments along the axial direction via RT instability, and subsequently fragments into droplets through Plateau–Rayleigh instability, displaying a weak coupling between ripple wave dynamics and fragmentation. In contrast, for ${\textit{We}}\gt 0.5$, disturbance waves with long wavelengths and large amplitudes become prominent, superimposed on the base ripple waves. As these disturbance waves reach the trailing edge, they are spontaneously ejected as liquid sheets at the same frequency, forming transverse rims through RT instability and rapidly disintegrating into fine droplets. This regime demonstrates a direct coupling between disturbance-wave dynamics and fragmentation.
Anurans are bioindicators and key components of ecosystem functions. Although South America harbors more than 4,000 identified anuran species, fewer than 10% have been analyzed regarding their trematode fauna. When tadpoles are considered, the paucity of studies becomes even more evident. Considering the ability of digeneans to serve as indicators of ecosystem health, it is evident that there is a gap in the knowledge of trematodes occurring in anuran biodiversity hotspots. Herein, we provide an ecological and morphological analysis of the trematode component community recovered in tadpoles and adult anurans. During a long-term herpetological and helminthological study conducted in a Cerrado fragment in Brazil, 569 anurans from 17 species were necropsied. Eleven species were common to both adults and tadpoles, and six species occurred only in adults. The total prevalence was 61% (352/569), in separate analyses, 65% (192/296) for adult anurans, and 58% (160/273) for tadpoles. A total of 12,397 trematodes belonging to 16 taxa were recovered. The component community was composed mostly of metacercariae. We provided a brief morphological description for each trematode taxa recovered. Additionally, statistical analysis was performed to elucidate the differences between tadpoles and adult anurans trematode communities. The trematode community analyzed in our study revealed 24 new host records and was the first to include tadpoles in such an analysis, highlighting the importance of faunistic inventories for a better understanding of parasitism in their hosts, as well as providing a foundation for further research.
The Methodenstreit dominated economic discourse in the late nineteenth-century Germany. In this context, one author stood out amongst the rest: Heinrich Dietzel. Dietzel proposed a theory and method, his Sozialökonomik (social economics), as a solution for the Methodenstreit. This reformulation was based in correcting what he perceived as mistakes of classical political economy that created confusion by not explaining what they saw as self-evident. His intention was to detach from the latest developments (both in British and German political economy) as well as from what he saw as erroneous criticism that, at the time, existed in German-speaking countries. This paper presents Dietzel’s perspective on the reformulation of classical political economy, focusing on the definition of an economic science, the proper method for theoretical statements, and the theory of value.