bluuebunny/crossref_metadata_2025_split huggingface dataset:
Musical Auditory Alpha Wave Neurofeedback: Validation and Cognitive Perspectives
Authors: Takabatake Kazuhiko , Kunii Naoto , Nakatomi Hirofumi , Shimada Seijiro , Yanai Kei , Takasago Megumi , Saito Nobuhito 
Published: April 2021

AbstractNeurofeedback through visual, auditory, or tactile sensations improves cognitive functions and alters the activities of daily living. However, some people, such as children and the elderly, have difficulty concentrating on neurofeedback for a long time. Constant stressless neurofeedback for a long time may be achieved with auditory neurofeedback using music. The primary purpose of this study was to clarify whether music-based auditory neurofeedback increases the power of the alpha wave in healthy subjects. During neurofeedback, white noise was superimposed on classical music, with the noise level inversely correlating with normalized alpha wave power. This was a single-blind, randomized control crossover trial in which 10 healthy subjects underwent, in an assigned order, normal and random feedback (NF and RF), either of which was at least 4 weeks long. Cognitive functions were evaluated before, between, and after each neurofeedback period. The secondary purpose was to assess neurofeedback-induced changes in cognitive functions. A crossover analysis showed that normalized alpha-power was significantly higher in NF than in RF; therefore, music-based auditory neurofeedback facilitated alpha wave induction. A composite category-based analysis of cognitive functions revealed greater improvements in short-term memory in subjects whose alpha-power increased in response to NF. The present study employed a long period of auditory alpha neurofeedback and achieved successful alpha wave induction and subsequent improvements in cognitive functions. Although this was a pilot study that validated a music-based alpha neurofeedback system for healthy subjects, the results obtained are encouraging for those with difficulty in concentrating on conventional alpha neurofeedback.Trial registration: 2018077NI, date of registration: 2018/11/27
Elastic Modulus, Thermal Expansion, and Pyrolysis Shrinkage of Norway Spruce Under High Temperature
Authors: Adibaskoro Tito , Makowska Michalina , Rinta-Paavola Aleksi , Fortino Stefania , Hostikka Simo 
Published: April 2021

AbstractThe orthotropic and temperature-dependent nature of the mechanical properties of wood is well recognized. However, past studies of mechanical properties at elevated temperatures are either limited to temperatures below 200 °C or focus only on the direction parallel to grain. The effect of time-dependent pyrolysis during measurement is often neglected. This paper presents a novel method for determining elastic modulus at high temperatures and thermal expansion coefficient in different orthotropic directions via Dynamic Mechanical-Thermal Analyser (DMTA). The method allows for drying, drying verification, and measurement in one chamber, eliminating the possibility of moisture reabsorption from ambient air. The repeatable measurements can be carried out in temperatures up to 325°C, adequate for observing time-dependent pyrolysis during measurement. Results of the measurements of Norway Spruce provide data of its mechanical response at temperature range previously not explored widely, as well as in the orthotropic direction. Time-dependent behaviour was observed in the thermal expansion and shrinkage experiment, where above 250°C the amount of shrinkage depends on heating rate. At such temperature, elastic moduli measurement also shows time dependence, where longer heating at certain temperature slightly increases the measured elastic modulus. Additionally, bilinear regression of the relationship between elastic moduli and temperature shows quantitatively good fit. Numerical simulation of the DMTA temperature history and wood chemical components mass losses show the onset of shrinkage and onset of hemicellulose mass loss occurring at around the same time, while decomposition of cellulose correlate with the sudden loss of elastic moduli.
Phytoplankton responses to meteorological and hydrological forcing at decadal to seasonal time scales
Authors: Janatian Nasime , Olli Kalle , Nõges Peeter 
Published: April 2021

AbstractOne of the challenges for predicting global change effects on aquatic ecosystems is the vague understanding of the mechanisms of multiple controlling factors affecting phytoplankton dynamics at different time scales. Here we distinguish between hydrometeorological forcing of phytoplankton dynamics at time scales from days to decades based on a 54-year monthly phytoplankton time series from a large shallow Lake Võrtsjärv (58°16′N, 26°02′E) in Estonia, combined with daily data on forcing factors—thermal-, wind-, light- and water-level regimes. By using variance partitioning with linear mixed effect modelling (LME), we found a continuum from the large dominant K-selected filamentous cyanobacteria with strongest decadal scale variation (8–30%) to r-selected phytoflagellates with large stochastic variability (80–96%). External forcing revealed strong seasonal variation (up to 80%), while specifically water level and wind speed had a robust decadal variation (8% and 20%, respectively). The effect of external variables was proportionally manifested in the time scales of phytoplankton variation. Temperature, with a clear seasonal variation, had no impact on the dominant cold tolerant filamentous cyanobacteria in Lake Võrtsjärv. We found the LME as a reliable method for resolving the temporal cross-scale problem. It yielded quantitative results that matched our intuitive understanding of the dynamics of different variables.
An Ethnological Analogy and Biogenetic Model for Interpretation of Religion and Ritual in the Past
Authors: Winkelman Michael James 
Published: April 2021

AbstractThis paper provides a method- and theory-focused assessment of religious behavior based on cross-cultural research that provides an empirically derived model as a basis for making inferences about ritual practices in the past through an ethnological analogy. A review of previous research provides an etic typology of religious practitioners and identifies their characteristics, selection-function features, the societal configurations of practitioners, and the social complexity features of the societies where they are found. New analyses reported here identify social predictors of the individual practitioner types in their relationships to subsistence and sociopolitical conditions (foraging, intensive agriculture, political integration, warfare, and community integration). These relations reveal the factors contributing to social evolution through roles of religious organization in the operation of cultural institutions. The discussion expands on the previous findings identifying fundamental forms of religious life in the relations of the selection processes for religious practitioner positions to their principal professional functions. These relationships reveal three biogenetic structures of religious life involving (1) alterations of consciousness used in healing rituals, manifested in a cultural universal of shamanistic healers; (2) kin inheritance of leadership roles providing a hierarchical political organization of agricultural societies, manifested in priests who carry out collective rituals for agricultural abundance and propitiation of common deities; and (3) attribution of evil activities, manifested in witches who are persecuted and killed in subordinated groups of societies with political hierarchies and warfare. These systematic cross-cultural patterns of types of ritualists and their activities provide a basis for inferring biogenetic bases of religion and models for interpreting the activities, organization, and beliefs regarding religious activities of past societies. Cases are analyzed to illustrate the utility of the models presented.
Poly-Sinc Solution of Stochastic Elliptic Differential Equations
Authors: Youssef Maha , Pulch Roland 
Published: April 2021

AbstractIn this paper, we introduce a numerical solution of a stochastic partial differential equation (SPDE) of elliptic type using polynomial chaos along side with polynomial approximation at Sinc points. These Sinc points are defined by a conformal map and when mixed with the polynomial interpolation, it yields an accurate approximation. The first step to solve SPDE is to use stochastic Galerkin method in conjunction with polynomial chaos, which implies a system of deterministic partial differential equations to be solved. The main difficulty is the higher dimensionality of the resulting system of partial differential equations. The idea here is to solve this system using a small number of collocation points in space. This collocation technique is called Poly-Sinc and is used for the first time to solve high-dimensional systems of partial differential equations. Two examples are presented, mainly using Legendre polynomials for stochastic variables. These examples illustrate that we require to sample at few points to get a representation of a model that is sufficiently accurate.
Homogenization of Coupled Fast-Slow Systems via Intermediate Stochastic Regularization
Authors: Engel Maximilian , Gkogkas Marios Antonios , Kuehn Christian 
Published: April 2021

AbstractIn this paper we study coupled fast-slow ordinary differential equations (ODEs) with small time scale separation parameter$$\varepsilon $$εsuch that, for every fixed value of the slow variable, the fast dynamics are sufficiently chaotic with ergodic invariant measure. Convergence of the slow process to the solution of a homogenized stochastic differential equation (SDE) in the limit$$\varepsilon $$εto zero, with explicit formulas for drift and diffusion coefficients, has so far only been obtained for the case that the fast dynamics evolve independently. In this paper we give sufficient conditions for the convergence of the first moments of the slow variable in the coupled case. Our proof is based upon a new method of stochastic regularization and functional-analytical techniques combined via a double limit procedure involving a zero-noise limit as well as considering$$\varepsilon $$εto zero. We also give exact formulas for the drift and diffusion coefficients for the limiting SDE. As a main application of our theory, we studyweakly-coupledsystems, where the coupling only occurs in lower time scales.
Enhancing the Capacity of Local Health Departments to Address Birth Equity: The Institute for Equity in Birth Outcomes
Authors: Collie-Akers Vicki , Landry Sarah , Ehule N. Jessica , Pecha Denise , Beltran M. Monica , Gilbert Carol , Abresch Chad 
Published: April 2021

Abstract
Introduction
Significant and persistent racial and ethnic disparities exist related to infant mortality and other birth outcomes. Few models exist that aim to prepare organizations to implement essential features, such as community engagement or intervening on social determinants of health.

Methods
Between 2013 and 2015, teams from seven local health departments participated in the Institute for Equity in Birth Outcomes (EI) with the goals of building capacity and implementing changes to address equity in birth outcomes. Four of the teams enrolled in the first cohort (2013–2015), and three enrolled in cohort two (2014–2015). To examine the EI effort and its impact on capacity and implementation of changes, two types of assessments were completed. Capacities of the teams in specific key areas were assessed using “Best Change Process” instruments at the completion of participation in the EI. Teams also documented on an ongoing basis implementation of interventions. The data were analyzed using descriptive statistics and Pearson Correlation tests.

Results
Best Change Process capacity scores were higher in the first cohort than in the second and were highly correlated with implementation of changes (Pearson’s Correlation = 0.838, p = 0.037). Collectively, the teams implemented about 32 new programs, policies, practices, and systems changes aimed at addressing equity in birth outcomes. Most interventions were based on scientific recommendations and local epidemiologic data.

Discussion
The results of the study suggest the EI is a promising approach that may result in strong capacity and ability to implement interventions aimed at addressing equity in birth outcomes.
New insights on homogenization for hexagonal-shaped composites as Cosserat continua
Authors: Colatosti Marco , Fantuzzi Nicholas , Trovalusci Patrizia , Masiani Renato 
Published: April 2021

AbstractIn this work, particle composite materials with different kind of microstructures are analyzed. Such materials are described as made of rigid particles and elastic interfaces. Rigid particles of arbitrary hexagonal shape are considered and their geometry is described by a limited set of parameters. Three different textures are analyzed and static analyses are performed for a comparison among the solutions of discrete, micropolar (Cosserat) and classical models. In particular, the displacements of the discrete model are compared to the displacement fields of equivalent micropolar and classical continua realized through a homogenization technique, starting from the representative elementary volume detected with a numeric approach. The performed analyses show the effectiveness of adopting the micropolar continuum theory for describing such materials.
The distinct existences argument revisited
Authors: Barz Wolfgang 
Published: April 2021

AbstractThe aim of this paper is to take a fresh look at a discussion about the distinct existences argument that took place between David Armstrong and Frank Jackson more than 50 years ago. I will try to show that Armstrong’s argument can be successfully defended against Jackson’s objections (albeit at the price of certain concessions concerning Armstrong’s view on the meaning of psychological terms as well as his conception of universals). Focusing on two counterexamples that Jackson put forward against Hume’s principle (which is central to Armstrong’s argument), I will argue that they are either compatible with Hume’s principle, or imply a false claim. I will also look at several other considerations that go against Hume’s principle, such as, for example, Kripke’s origin essentialism and counterexamples from aposteriori necessity.
Chemical shift assignments of the N-terminal domain of PSD95 (PSD95-NT)
Authors: Zhang Yonghong , Hell Johannes W. , Ames James B. 
Published: April 2021

AbstractPostsynaptic density protein-95 (PSD95) contributes to the postsynaptic architecture of neuronal synapses and plays an important role in controlling synaptic plasticity. The N-terminal domain of PSD95 (residues 1–71, called PSD95-NT) interacts with target proteins (calmodulin, α-actinin-1 and CDKL5), which regulate the Ca2+-dependent degradation of glutamate receptors. We report complete backbone NMR chemical shift assignments of PSD95-NT (BMRB No. 50752).
A comparative analysis of hazard-prone housing acquisition programs in US and New Zealand communities
Authors: Smith Gavin , Saunders Wendy , Vila Olivia , Gyawali Samata , Bhattarai Samiksha , Lawdley Eliza 
Published: April 2021

AbstractThis article describes the preliminary results of an international comparative assessment of hazard-prone housing acquisition programs (buyouts) undertaken in six US and New Zealand communities. Semi-structured interviews were conducted with government officials and consultants tasked with administering buyout programs following flood, debris flow, and earthquake-based disasters. Key issues analyzed include local capacity, public participation, planning and design, program complexity, funding and financial management, and lesson drawing. The findings are timely given the rise in disaster-related losses, buyouts are increasingly cited as a strategy to reduce natural hazard risk and advance climate change adaptation, and national buyout programs are evolving in both countries to tackle the challenges associated with this complex process.
Relationships between medical students’ co-regulatory network characteristics and self-regulated learning: a&nbsp;social network study
Authors: Bransen Derk , Govaerts Marjan J. B. , Sluijsmans Dominique M. A. , Donkers Jeroen , Van den Bossche Piet G. C. , Driessen Erik W. 
Published: April 2021

Introduction Recent conceptualizations of self-regulated learning acknowledge the importance of co-regulation, i.e., students’ interactions with others in their networks to support self-regulation. Using a social network approach, the aim of this study is to explore relationships between characteristics of medical students’ co-regulatory networks, perceived learning opportunities, and self-regulated learning.
Methods The authors surveyed 403 undergraduate medical students during their clinical clerkships (response rate 65.5%). Using multiple regression analysis, structural equation modelling techniques, and analysis of variance, the authors explored relationships between co-regulatory network characteristics (network size, network diversity, and interaction frequency), students’ perceptions of learning opportunities in the workplace setting, and self-reported self-regulated learning.
Results Across all clerkships, data showed positive relationships between tie strength and self-regulated learning (β = 0.095, p < 0.05) and between network size and tie strength (β = 0.530, p < 0.001), and a negative relationship between network diversity and tie strength (β = −0.474, p < 0.001). Students’ perceptions of learning opportunities showed positive relationships with both self-regulated learning (β = 0.295, p < 0.001) and co-regulatory network size (β = 0.134, p < 0.01). Characteristics of clerkship contexts influenced both co-regulatory network characteristics (size and tie strength) and relationships between network characteristics, self-regulated learning, and students’ perceptions of learning opportunities.
Discussion The present study reinforces the importance of co-regulatory networks for medical students’ self-regulated learning during clinical clerkships. Findings imply that supporting development of strong networks aimed at frequent co-regulatory interactions may enhance medical students’ self-regulated learning in challenging clinical learning environments.
Optimizing the hybridization chain reaction-fluorescence in situ hybridization (HCR-FISH) protocol for detection of microbes in sediments
Authors: Jia Zeyu , Dong Yijing , Xu Heng , Wang Fengping 
Published: April 2021

AbstractFluorescence in situ hybridization (FISH) is a canonical tool commonly used in environmental microbiology research to visualize targeted cells. However, the problems of low signal intensity and false-positive signals impede its widespread application. Alternatively, the signal intensity can be amplified by incorporating Hybridization Chain Reaction (HCR) with FISH, while the specificity can be improved through protocol modification and proper counterstaining. Here we optimized the HCR-FISH protocol for studying microbes in environmental samples, particularly marine sediments. Firstly, five sets of HCR initiator/amplifier pairs were tested on the laboratory-cultured bacterium Escherichia coli and the archaeon Methanococcoides methylutens, and two sets displayed high hybridization efficiency and specificity. Secondly, we tried to find the best combination of sample pretreatment methods and HCR-FISH protocol for environmental sample analysis with the aim of producing less false positive signals. Various detachment methods, extraction methods and formulas of hybridization buffer were tested using sediment samples. Thirdly, an image processing method was developed to enhance the DAPI signal of microbial cells against that of abiotic particles, providing a reliable reference for FISH imaging. In summary, our optimized HCR-FISH protocol showed promise to serve as an addendum to traditional FISH for research on environmental microbes.
Drawing Contract and Polyamory Together Or: How I Found the Limits of Liberal Legality in Kimchi Cuddles Comics
Authors: Enman-Beech John 
Published: April 2021

AbstractPolyamory means consensual, aspirationally gender-egalitarian, non-monogamous relationships. People who engage in such relationships often seek relationship advice. This article is a critical review of a self-help webcomic and other texts in the light of contract theory. Polyamorous people often use contractual concepts to understand their relationships and how to carry them out. Applying critical contract theory, we can trace how problems typical of contractual framing in other fields play out in the poly context. At the same time, these problems are recognized and responded to by poly people, and they dynamically reinterpret core contract concepts. This article thus makes two contributions. First, it provides a study in the way legal concepts percolate out into, and are transformed by, everyday life. Second, in consolidating some ways poly people have solved old contract problems, it offers conceptual tools for the continuing project of imagining more just ways of relating.
Development of the systematic observation of COVID-19 mitigation (SOCOM): Assessing face covering and distancing in schools
Authors: Camplain Ricky , Lopez Nanette V. , Cooper Dan M. , McKenzie Thomas L. , Zheng Kai , Radom-Aizik Shlomit 
Published: April 2021

Abstract

Introduction:
During the COVID-19 pandemic, some K-12 schools resumed in-person classes with varying degrees of mitigation plans in the fall 2020. Physical distancing and face coverings can minimize SARS-CoV-2 spread, the virus that causes COVID-19. However, no research has focused on adherence to mitigation strategies during school days. Thus, we sought to develop a systematic observation protocol to capture COVID-19 mitigation strategy adherence in school environments: The Systematic Observation of COVID-19 Mitigation (SOCOM).

Methods:
We extended previously validated and internationally used tools to develop the SOCOM training and implementation protocols to assess physical-distancing and face-covering behaviors. SOCOM was tested in diverse indoor and outdoor settings (classrooms, lunchrooms, physical education [PE], and recess) among diverse schools (elementary, secondary, and special needs).

Results:
For the unique metrics of physical-distancing and face-covering behaviors, areas with less activity and a maximum of 10–15 students were more favorable for accurately capturing data. Overall proportion of agreement was high for physical distancing (90.9%), face covering (88.6%), activity type (89.2%), and physical activity level (87.9%). Agreement was lowest during active recess, PE, and observation areas with ≥20 students.

Conclusions:
Millions of children throughout the USA are likely to return to school in the months ahead. SOCOM is a relatively inexpensive research tool that can be implemented by schools to determine mitigation strategy adherence and to assess protocols that allow students return to school safely and slow the spread of COVID-19.
Infinitely presented permutation stable groups and invariant random subgroups of metabelian groups
Authors: LEVIT ARIE , LUBOTZKY ALEXANDER 
Published: April 2021

AbstractWe prove that all invariant random subgroups of the lamplighter group L are co-sofic. It follows that L is permutation stable, providing an example of an infinitely presented such group. Our proof applies more generally to all permutational wreath products of finitely generated abelian groups. We rely on the pointwise ergodic theorem for amenable groups.