bluuebunny/crossref_metadata_2025_split huggingface dataset:
Challenges and opportunities in accessing mobile phone data for COVID-19 response in developing countries
Authors: Milusheva Sveta , Lewin Anat , Begazo Gomez Tania , Matekenya Dunstan , Reid Kyla 
Published: September 2021

AbstractAnonymous and aggregated statistics derived from mobile phone data have proven efficacy as a proxy for human mobility in international development work and as inputs to epidemiological modeling of the spread of infectious diseases such as COVID-19. Despite the widely accepted promise of such data for better development outcomes, challenges persist in their systematic use across countries. This is not only the case for steady-state development use cases such as in the transport or urban development sectors, but also for sudden-onset emergencies such as epidemics in the health sector or natural disasters in the environment sector. This article documents an effort to gain systematized access to and use of anonymized, aggregated mobile phone data across 41 countries, leading to fruitful collaborations in nine developing countries over the course of one year. The research identifies recurring roadblocks and replicable successes, offers lessons learned, and calls for a bold vision for future successes. An emerging model for a future that enables steady-state access to insights derived from mobile big data - such that they are available over time for development use cases - will require investments in coalition building across multiple stakeholders, including local researchers and organizations, awareness raising of various key players, demand generation and capacity building, creation and adoption of standards to facilitate access to data and their ethical use, an enabling regulatory environment and long-term financing schemes to fund these activities.
Connecting Reproductive Rights, Democracy, and the Rule of Law: Lessons from Poland in Times of COVID-19
Authors: Krajewska Atina 
Published: September 2021

AbstractThis article examines the relationship between reproductive rights, democracy, and the rule of law in transitional societies. As a case study, it examines the development of abortion law in Poland. The article makes three primary claims. First, it argues that the relationship between reproductive rights and the rule of law in Poland came clearly into view through the abortion judgment K 1/20, handed down by the Constitutional Tribunal in the middle of the COVID-19 pandemic. The judgment and the context in which it was issued and published are interpreted as reflections of deep-lying processes and problems in Polish society. Consequently, second, the article argues that analysis of the history of reproductive rights in recent decades in Poland reveals weak institutionalization of the rule of law. This is manifest in the ways in which different professional groups, especially doctors and lawyers, have addressed questions regarding abortion law. Therefore, third, the article argues that any assessment of the rule of law should take into account how powerful professional actors and organizations interact with the law. The Polish case study shows that reproductive rights should be seen as important parts of a “litmus test,” which we can use to examine the efficacy of democratic transitions and the quality of the democracies in which such transitions result.
Feasibility of implementing a culturally adapted Prolonged Grief Disorder scale in the mental healthcare system in Nepal
Authors: Kim Yoona , Ghimire Asmita , Lasater Molly E. , Kohrt Brandon A. , Surkan Pamela J. , Luitel Nagendra P. 
Published: September 2021

Abstract

Background
Nepali widows have a high prevalence of mental disorders, including prolonged grief disorder (PGD). Despite the considerable needs that Nepali widows have for mental health services, resources for mental health in Nepal are limited, amplifying the importance of accurate screening and diagnosis. The objective of this study was to explore the feasibility of implementing a culturally adapted Prolonged Grief Scale (PG-12/17-N) and provide actionable recommendations for its implementation.

Methods
Twenty-five mental health service providers in Kathmandu and Chitwan, Nepal were interviewed using a semi-structured guide based on selected constructs from the Consolidated Framework for Implementation Research. Qualitative data were inductively and deductively coded and analyzed to identify prominent themes.

Results
Providers reported that the main advantages of the scale were the need to identify widows at risk, cultural relevance, easy language, and inclusion of detailed and specific symptoms. Perceived weaknesses included the complexity in response options and scoring, length, item redundancy, overlap with depression symptoms, and lack of somatic symptoms. Providers discussed the need for training, supervision, and a referral and detection system required to implement the scale in Nepal. Further development of a brief version of the scale as a routine screener may facilitate detection and referral to care.

Conclusion
Based on the results showing need to address PGD in Nepali widows, further efforts are needed to increase awareness about PGD and develop evidence-supported treatments for PGD, after which screening could be made routine for widows.
Return to classes impact on mental health of university students during the COVID-19 pandemic
Authors: Seffrin Aldo , Puccinelli Paulo J. , Vivan Lavinia , Vancini Rodrigo L. , de Lira Claudio A. B. , Nikolaidis Pantelis T. , Rosemann Thomas , Knechtle Beat , Andrade Marilia S. 
Published: September 2021

AbstractBackground:The coronavirus disease 2019 (COVID-19) pandemic and the necessary social isolation and distancing measures – that were adopted to prevent spreading the virus, including the suspension of university classes – negatively impacted the mental health of young adults. The aim of the current study was to investigate whether returning to online classes, even not presential, during the social isolation of the COVID-19 pandemic, affected the mental health of university students.Methods:Forty students (10 men and 30 women) (age, 22.3 ± 3.8 years; body mass, 62.5 ± 17.8 kg; height, 165.6 ± 8.7 cm) from undergraduate health courses participated in the study. The students answered a self-administered questionnaire designed to gather personal and quarantine information as well as information about the frequency of depression (PHQ-9) and anxiety (GAD-7) symptoms. The questionnaire was answered before and after the return to online classes.Results:There was a significantly lower frequency of depression symptoms after the return to online classes (Z = −2.27; p = 0.02). However, there was no difference in anxiety symptoms before and after returning to online classes (Z = −0.51; p = 0.61).Conclusions:Return to online classes positively impacted the mental health (decrease of frequency of depression symptoms) of university students. Future studies are needed to observe whether the changes observed after returning to school are maintained over time.
Old Cups Die Hard: The Appropriation of Athenian Pottery in the Iberian Peninsula
Authors: Rodríguez Pérez Diana 
Published: September 2021

AbstractThe Iberian archaeological record is particularly rich in asynchronous (i.e. chronologically mixed) assemblages including Athenian pots that predate the other items by a couple of decades or even a few centuries. Recent scholarship onkeimëlia, or ‘curated objects’ in modern parlance, has shown the potential of such objects to investigate questions of identity, agency and history-making among the receiving communities, but also to shed light on the role of Athenian pottery among them. This article analyses this phenomenon within the Iberian peninsula, focusing on drinking cups, both black-gloss with inset lip (Cástulo cups) and red-figure type B cups. Using case studies from necropoleis and settlements of the southeast and east of the peninsula, the article explores the reasons and meaning of this consumption practice. It is argued that the occurrence of ‘heirloom’ vases in Iberian tombs and their extraordinary survival in some settlements is the result of a conscious and deliberate choice indicating the existence of mechanisms of social distinction based on a diacritical use of material culture. It is further argued that different motivations might lie behind their delayed deposition: when the chronological gap between production and disposal dates is small, one or two human generations, curated Athenian vases worked similarly to non-curated ones, being emblematic of economic success, social affiliations and political rank. But when the interval is longer, Athenian pots became symbols of ancestry and elite status, possibly acquiring the same legitimizing role earlier bestowed upon Orientalizing artefacts. Supplementary material is available online (https://doi.org/10.1017/S0075426921000094) and comprises a catalogue of case-study objects.
Prepositional phrases and case in North American (heritage) Icelandic
Authors: Dehé Nicole , Kupisch Tanja 
Published: September 2021

AbstractThe paper investigates the use of PPs, specifically prepositions and the case marking on their DP arguments, in moribund North American (heritage) Icelandic (NAmIce), using data from a map task experiment. Since prepositional phrases combine semantic properties with morpho-syntactic properties, PPs allow us to investigate the relative vulnerability of both domains at once. Our results show that while the prepositional inventory of NAmIce is not reduced as compared to Modern Icelandic, the choice of prepositions is subject to crosslinguistic influence from the dominant language English. For case, we find an increase in the use of nominative and accusative case at the expense of the dative; prepositions may take over case functions too. Our results are in line with previous research on case in heritage languages as well as studies on language change, while partially contradicting the assumption that loss is reversely related to acquisition.
The development of depressogenic self-schemas: Associations with children's regional grey matter volume in ventrolateral prefrontal cortex
Authors: Liu Pan , Hayden Elizabeth P. , Dougherty Lea R. , Leung Hoi-Chung , Goldstein Brandon , Klein Daniel N. 
Published: September 2021

AbstractCognitive theories of depression contend that biased cognitive information processing plays a causal role in the development of depression. Extensive research shows that deeper processing of negative and/or shallower processing of positive self-descriptors (i.e., negative and positive self-schemas) predicts current and future depression in adults and children. However, the neural correlates of the development of self-referent encoding are poorly understood. We examined children's self-referential processing using the self-referent encoding task (SRET) collected from 74 children at ages 6, 9, and 12; around age 10, these children also contributed structural magnetic resonance imaging data. From age 6 to age 12, both positive and negative self-referential processing showed mean-level growth, with positive self-schemas increasing relatively faster than negative ones. Further, voxel-based morphometry showed that slower growth in positive self-schemas was associated with lower regional gray matter volume (GMV) in ventrolateral prefrontal cortex (vlPFC). Our results suggest that smaller regional GMV within vlPFC, a critical region for regulatory control in affective processing and emotion development, may have implications for the development of depressogenic self-referential processing in mid-to-late childhood.
Tectonic Accretion Controls Erosional Cyclicity in the Himalaya
Authors: Mandal Sanjay Kumar , Scherler Dirk , Wittmann Hella 
Published: September 2021

AbstractThe evolution of Earth's climate over geological timescales is linked to surface erosion via weathering of silicate minerals and burial of organic carbon. However, methodological difficulties in reconstructing erosion rates through time and feedbacks among tectonics, climate, and erosion spurred an ongoing debate on mountain erosion sensitivity to tectonic and climate forcing. At the heart of this debate is the question of whether late Cenozoic climate cooling has increased global erosion rates or not. The Himalaya plays a prominent role in this debate as its erosion produces a large fraction of global sediments delivered to ocean basins. We report a 6‐Myr‐long record of ‐derived erosion rates from the north‐western Himalaya, which indicates that erosion rates in this region varied quasi‐cyclically with a period of ∼1 Myr and increased gradually toward the present. We hypothesize that the observed pattern of erosion rates occurred in response to the tectonic growth of the Himalaya by punctuated basal and frontal accretion of rocks from the underthrusting Indian plate and concomitant changes in topography. In this scenario, basal accretion episodically changes rock‐uplift patterns, which brings landscapes out of equilibrium and results in quasi‐cyclic variations in erosion rates. We used numerical landscape evolution simulations to demonstrate that this hypothesis is physically plausible. We attribute the long‐term increase in erosion rates to the erosional response of topography due to frequent basal accretion relative to frontal accretion. Because tectonic accretion processes are inherent to collisional orogenesis, they likely confound climatic interpretations of erosion rate histories.
Dehydration of plant cells shoves nuclei rotation allowing for 3D phase-contrast tomography
Authors: Wang Zhe , Bianco Vittorio , Pirone Daniele , Memmolo Pasquale , Villone Massimiliano Maria , Maffettone Pier Luca , Ferraro Pietro 
Published: September 2021

AbstractSingle-cell phase-contrast tomography promises to become decisive for studying 3D intracellular structures in biology. It involves probing cells with light at wide angles, which unfortunately requires complex systems. Here we show an intriguing concept based on an inherent natural process for plants biology, i.e., dehydration, allowing us to easily obtain 3D-tomography of onion-epidermal cells’ nuclei. In fact, the loss of water reduces the turgor pressure and we recognize it induces significant rotation of cells’ nuclei. Thanks to the holographic focusing flexibility and an ad-hoc angles’ tracking algorithm, we combine different phase-contrast views of the nuclei to retrieve their 3D refractive index distribution. Nucleolus identification capability and a strategy for measuring morphology, dry mass, biovolume, and refractive index statistics are reported and discussed. This new concept could revolutionize the investigation in plant biology by enabling dynamic 3D quantitative and label-free analysis at sub-nuclear level using a conventional holographic setup.
Who benefits most from expectancy effects? A combined neuroimaging and antidepressant trial in depressed older adults
Authors: Zilcha-Mano Sigal , Wallace Meredith L. , Brown Patrick J. , Sneed Joel , Roose Steven P. , Rutherford Bret R. 
Published: September 2021

AbstractDepressed patients’ expectations of improvement drive placebo effects in antidepressant clinical trials, yet there is considerable heterogeneity in the magnitude of expectancy effects. The present study seeks to identify those individuals who benefit most from expectancy effects using baseline neuroimaging and cognitive measures. Older adult outpatients diagnosed with major depressive disorder (MDD) participated in a prospective, 8-week clinical trial in which expectancy was experimentally manipulated and its effects on depression outcome measured. Based on the literature, we selected a priori 12 cognitive and brain-based variables linked to depression and expectancy, together with demographic variables, and incorporated them into a combined moderator. The combined moderator was developed as a weighted combination of the individual moderators, and was used to identify individuals who benefited most from expectancy effects. The combined moderator was found to predict differential change in depression severity scores between the high- vs. low-expectancy groups with a medium-size effect (Spearman effect size: 0.28). While at the sample level no expectancy effect was found, the combined moderator divided older adults with MDD into those who did and those who did not improve as the result of expectancy manipulation, with those benefiting from the manipulation showing greater processing speed, executive function, and frontostriatal white matter tract integrity. The findings suggest that it is possible to identify a subgroup of older adult individuals with MDD for whom expectancy manipulation results in greater antidepressant treatment response, supporting a precision medicine approach. This subgroup is characterized by distinct cognitive dysfunction and neuroimaging impairments profiles.
Phase diagram of YbZnGaO4 in applied magnetic field
Authors: Steinhardt William , Maksimov P. A. , Dissanayake Sachith , Shi Zhenzhong , Butch Nicholas P. , Graf David , Podlesnyak Andrey , Liu Yaohua , Zhao Yang , Xu Guangyong , Lynn Jeffrey W. , Marjerrison Casey , Chernyshev A. L. , Haravifard Sara 
Published: September 2021

AbstractRecently, Yb-based triangular-lattice antiferromagnets have garnered significant interest as possible quantum spin-liquid candidates. One example is YbMgGaO4, which showed many promising spin-liquid features, but also possesses a high degree of disorder owing to site-mixing between the non-magnetic cations. To further elucidate the role of chemical disorder and to explore the phase diagram of these materials in applied field, we present neutron scattering and sensitive magnetometry measurements of the closely related compound, YbZnGaO4. Our results suggest a difference in magnetic anisotropy between the two compounds, and we use key observations of the magnetic phase crossover to motivate an exploration of the field- and exchange parameter-dependent phase diagram, providing an expanded view of the available magnetic states in applied field. This enriched map of the phase space serves as a basis to restrict the values of parameters describing the magnetic Hamiltonian with broad application to recently discovered related materials.
Language and nonlanguage factors in foreign language learning: evidence for the learning condition hypothesis
Authors: Kang Xin , Matthews Stephen , Yip Virginia , Wong Patrick C. M. 
Published: September 2021

AbstractThe question of why native and foreign languages are learned with a large performance gap has prompted language researchers to hypothesize that they are subserved by fundamentally different mechanisms. However, this hypothesis may not have taken into account that these languages can be learned under different conditions (e.g., naturalistic vs. classroom settings). With a large sample of 636 third language (L3) learners who learned Chinese and English as their first (L1) and second (L2) languages, the present study examined the association of learning success across L1–L3. We argue that learning conditions may reveal how these languages are associated in terms of learning success. Because these languages were learned under a continuum of naturalistic to classroom conditions from L1 to L3, this sample afforded us a unique opportunity to evaluate the hypothesis that similar learning conditions between languages could be an important driving force determining language learning success. After controlling for nonlanguage factors such as musical background and motivational factors and using a convergence of analytics including the general linear models, the structural equation models, and machine learning, we found that the closer two languages were on the continuum of learning conditions, the stronger their association of learning success. Specifically, we found a significant association between L1 and L2 and between L2 and L3, but not between L1 and L3. Our results suggest that learning conditions may have important implications for the learning success of L1–L3.
Using supervised learning to develop BaRAD, a 40-year monthly bias-adjusted global gridded radiation dataset
Authors: Chakraborty T. C. , Lee Xuhui 
Published: September 2021

AbstractDiffuse solar radiation is an important, but understudied, component of the Earth’s surface radiation budget, with most global climate models not archiving this variable and a dearth of ground-based observations. Here, we describe the development of a global 40-year (1980–2019) monthly database of total shortwave radiation, including its diffuse and direct beam components, called BaRAD (Bias-adjusted RADiation dataset). The dataset is based on a random forest algorithm trained using Global Energy Balance Archive (GEBA) observations and applied to the Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) dataset at the native MERRA-2 resolution (0.5° by 0.625°). The dataset preserves seasonal, latitudinal, and long-term trends in the MERRA-2 data, but with reduced biases than MERRA-2. The mean bias error is close to 0 (root mean square error = 10.1 W m−2) for diffuse radiation and −0.2 W m−2 (root mean square error = 19.2 W m−2) for the total incoming shortwave radiation at the surface. Studies on atmosphere-biosphere interactions, especially those on the diffuse radiation fertilization effect, can benefit from this dataset.
Modality-specific attractor dynamics in dyadic entrainment
Authors: Rosso Mattia , Maes Pieter J. , Leman Marc 
Published: September 2021

AbstractRhythmic joint coordination is ubiquitous in daily-life human activities. In order to coordinate their actions towards shared goals, individuals need to co-regulate their timing and move together at the collective level of behavior. Remarkably, basic forms of coordinated behavior tend to emerge spontaneously as long as two individuals are exposed to each other’s rhythmic movements. The present study investigated the dynamics of spontaneous dyadic entrainment, and more specifically how they depend on the sensory modalities mediating informational coupling. By means of a novel interactive paradigm, we showed that dyadic entrainment systematically takes place during a minimalistic rhythmic task despite explicit instructions to ignore the partner. Crucially, the interaction was organized by clear dynamics in a modality-dependent fashion. Our results showed highly consistent coordination patterns in visually-mediated entrainment, whereas we observed more chaotic and more variable profiles in the auditorily-mediated counterpart. The proposed experimental paradigm yields empirical evidence for the overwhelming tendency of dyads to behave as coupled rhythmic units. In the context of our experimental design, it showed that coordination dynamics differ according to availability and nature of perceptual information. Interventions aimed at rehabilitating, teaching or training sensorimotor functions can be ultimately informed and optimized by such fundamental knowledge.
Superconducting edge states in a topological insulator
Authors: Yurkevich I. V. , Kagalovsky V. 
Published: September 2021

AbstractWe study the stability of multiple conducting edge states in a topological insulator against perturbations allowed by the time-reversal symmetry. A system is modeled as a multi-channel Luttinger liquid, with the number of channels equal to the number of Kramers doublets at the edge. Assuming strong interactions and weak disorder, we first formulate a low-energy effective theory for a clean translation invariant system and then include the disorder terms allowed by the time-reversal symmetry. In a clean system with N Kramers doublets, N − 1 edge states are gapped by Josephson couplings and the single remaining gapless mode describes collective motion of Cooper pairs synchronous across the channels. Disorder perturbation in this regime, allowed by the time reversal symmetry is a simultaneous backscattering of particles in all N channels. Its relevance depends strongly on the parity if the number of channel N is not very large. Our main result is that disorder becomes irrelevant with the increase of the number of edge modes leading to the stability of the edge states superconducting regime even for repulsive interactions.