bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Review of the Methodology, Taxonomy, and Definitions in Recent fMRI Research on Meditation
Authors: Engström Maria , Willander Johan , Simon Rozalyn 
Published: November 2021

Abstract
Objectives
As meditation is increasingly employed for the promotion of good health, there is a growing interest in using neuroimaging methods to investigate the neural mechanisms by which meditation acts. In the wake of this rising interest, criticism regarding the lack of clarity concerning theory, definitions, and taxonomy, as well as deficient or poorly reported methodology, has arisen. The aim of this study was to investigate trends in current neuroimaging research on meditation and to provide guidelines for future studies.

Methods
We made a literature search for articles published during 2016–2019 using the search phrases “meditation” and “functional magnetic resonance imaging or fMRI”. Inclusion criteria were limited to meditation studies using resting-state fMRI or such task-based fMRI examinations that were specifically targeting meditative states in healthy participants. Text analysis was performed using Nvivo 12 Mac (QSR International).

Results
Twenty-eight articles were included from which we identified four different intention-based dimensions of meditation practice: The present moment, Wholesome qualities to cultivate, Unwholesome qualities to avoid, and Attitudes. Half of the studies do not make assessments of subjective experience. The results were related to networks and brain regions describing cognitive, affective, somatic, and self domains of brain function. Most studies describe meditation-related brain function in terms of “processes”.

Conclusions
We defined five areas of potential improvement regarding research methodology: (1) Provide clear and unambiguous definitions of constructs and practices, (2) Include measures of subjective experience, (3) Perform correct assessment of processes, (4) Combine methodologies for more substantiated conclusions, (5) Avoid the risk of overinterpretation.
The influence of youth and parent reports of parental knowledge and monitoring and reporting discrepancy on high risk youth offending
Authors: Bouffard Leana A. , Armstrong Gaylene S. 
Published: November 2021

AbstractIntroductionPositive parenting practices are known to be related to lower levels of youth offending. Questions remain as to the overlap between youth and parent perceptions of parenting practices, and the relationship of perception discrepancies with youth offending. This study examines the concordance of parenting behaviors reports, the relationship between parent and youth perceptions of parenting measures with youth offending, and whether discordant youth and parent reports are related to heterogeneity in youth offending.MethodsSurvey data from 818 high risk U.S. youth averaging 16 years old who participated in the Pathways to Desistance study and his or her parent form the basis of this analysis.Results and conclusionsResults demonstrate youth and parent reports of parental knowledge and parental monitoring are correlated, yet independent predictors of youth offending variety scores. Youth and parent reports about parenting measures demonstrate youth offending is highest when youth perceive parents as uninvolved, and lowest when youth estimates of parental knowledge and monitoring are higher than parent estimates. Parenting matters for high‐risk youth, especially in reducing the likelihood of property offending. Using multiple perspectives to assess parenting practices is important in studying these dyadic relationships.
Mycobacterium abscessus Surgical Site Infections Due to Modular Cooler-Heater Units in Cardiac Surgery
Authors: Abdul Azim Ahmed , Wright Sharon , Connors Bryan , Gordon Patrick , Mehrotra Preeti 
Published: November 2021

Background: In the spring of 2020, we identified 3 patients with organ-space surgical site infections (SSIs) secondary to Mycobacterium abscessus (Table 1). All 3 patients underwent cardiac surgery in the same operating room (OR) during which the CardioQuip Modular Cooler-Heaters (MCHs) were used. We describe key aspects of our cluster investigation, which ultimately led to release of a national safety alert by the Food and Drug Administration (FDA). Methods: For environmental cultures, we obtained samples from 9 MCHs in circulation; 2 scrub sink samples; ice from the OR ice machine; water samples from sinks in the cardiovascular critical care unit, and water samples from floors above the cardiac ORs. All samples were sent for molecular genotyping. For pathway studies, an external environmental engineering team was consulted who conducted smoke pathway tests in 3 different ORs. The team also conducted a particle generator experiment, simulating the set-up of a cardiac bypass surgery case. To assess disinfection practices, we reviewed the manufacturer instructions for use (IFU) protocol of the MCHs and audited our own policies and procedures to ensure compliance. Results: For environmental cultures, molecular typing from 5 of 9 MCHs and all 3 patient SSI isolates returned positive for the identical hybrid species M. abscessus bolleti. All other samples with mycobacterial growth returned with different species. For pathway studies, the particle-generator experiment demonstrated particle movement from the MCH to the sterile field with facilities-guidelines–compliant OR ventilation and despite MCH manufacturing design. For disinfection practices, despite compliance with the stated IFU, and in consultation with experts, we implemented disinfection of associated Quick-connect devices (otherwise not stated in the IFU), and we also initiated a precleaning step prior to disinfection. Conclusions: Our investigation concluded that 3 patients developed SSIs with Mycobacterium abscessus that was aerosolized from the CardioQuip MCH. This finding led to the national FDA safety report alerting providers to risks associated with the device and the need for continued vigilance around disinfection. In addition, we implemented other control measures including placement of MCHs outside all ORs; creation of a separate MCH fleet for non-OR use; and use of modified disinfection protocols. To date, no additional cases have been identified.Funding: NoDisclosures: None
Measuring outcomes in healthcare economics using Artificial Intelligence: With application to resource management
Authors: Huang Chih-Hao , Batarseh Feras A. , Boueiz Adel , Kulkarni Ajay , Su Po-Hsuan , Aman Jahan 
Published: November 2021

AbstractThe quality of service in healthcare is constantly challenged by outlier events such as pandemics (i.e., Covid-19) and natural disasters (such as hurricanes and earthquakes). In most cases, such events lead to critical uncertainties in decision-making, as well as in multiple medical and economic aspects at a hospital. External (geographic) or internal factors (medical and managerial) lead to shifts in planning and budgeting, but most importantly, reduce confidence in conventional processes. In some cases, support from other hospitals proves necessary, which exacerbates the planning aspect. This paper presents three data-driven methods that provide data-driven indicators to help healthcare managers organize their economics and identify the most optimum plan for resources allocation and sharing. Conventional decision-making methods fall short in recommending validated policies for managers. Using reinforcement learning, genetic algorithms, traveling salesman, and clustering, we experimented with different healthcare variables and presented tools and outcomes that could be applied at health institutes. Experiments are performed; the results are recorded, evaluated, and presented.
Spaces of Lorentzian and real stable polynomials are Euclidean balls
Authors: Brändén Petter 
Published: November 2021

Abstract
We prove that projective spaces of Lorentzian and real stable polynomials are homeomorphic to Euclidean balls. This solves a conjecture of June Huh and the author. The proof utilises and refines a connection between the symmetric exclusion process in interacting particle systems and the geometry of polynomials.
THE GLOBALIZATION OF CHINA'S COAL INDUSTRY: THE ROLE OF DEVELOPMENT BANKS
Authors: Kong Bo , Gallagher Kevin P. 
Published: November 2021

AbstractThis article examines the political economy of Chinese overseas development finance for coal fired power plants. In just over a decade China's two major policy banks provide more financing for overseas coal-fired power plant expansion than any other public financier in the world economy. We show how China's overseas surge in public financing for coal fired power plants is a function of a number of domestic push and foreign pull factors. Excess capacity, environmental regulation, and structural change are push factors that converge with rising demand for energy, pockets of coal abundance, and the lack of financing in Western capital markets for coal fired power plants. Fragmentation across the Chinese system and the demand for coal outside China's borders allow for a decline sector on the mainland to become a global Chinese powerhouse.
Early and late signals of unexpected reward contribute to low extraversion and high disinhibition, respectively
Authors: Neo Phoebe S-H. , McNaughton Neil , Sellbom Martin 
Published: November 2021

Abstract
Like socio-economic status and cognitive abilities, personality traits predict important life outcomes. Traits that reflect unusually low or high approach motivations, such as low extraversion and high disinhibition, are linked to various forms of mental disorder. Similarly, the dopamine system is theoretically linked to approach motivation traits and to various forms of mental disorder. Identifying neural contributions to extremes of such traits should map to neural sources of psychopathology, with dopamine a prime candidate. Notably, dopamine cells fire in response to unexpected reward, which suggests that the size of non-invasive, scalp-recorded potentials evoked by unexpected reward could reflect sensitivity in approach motivation traits. Here, we evaluated the validity of evoked electroencephalography (EEG) responses to unexpected reward in a monetary gain/loss task to assess approach motivation traits in 137 participants, oversampled for externalizing psychopathology symptoms. We demonstrated that over the 0–400 ms period in which feedback on the outcome was presented, responses evoked by unexpected reward contributed to all theoretically relevant approach motivation trait domains (disinhibition, extraversion and the behavioural activation system); and did so only at times when dopamine responses normally peak and reportedly code salience (70–100 ms) and valuation (200–300 ms). In particular, we linked “dopaminergic” salience and valuation to the psychopathology-related constructs of low extraversion (social anxiety) and high disinhibition (impulsivity) respectively, making the evoked potential components biomarker candidates for indexing aberrant processing of unexpected reward.
Correlates of real-world goal-directed behavior in schizophrenia
Authors: Merchant Jaisal T. , Moran Erin K. , Strube Michael J. , Barch Deanna M. 
Published: November 2021

AbstractBackgroundDeficits in goal-directed behavior (i.e. behavior conducted to achieve a specific goal or outcome) are core to schizophrenia, difficult to treat, and associated with poor functional outcomes. Factors such as negative symptoms, effort-cost decision-making, cognition, and functional skills have all been associated with goal-directed behavior in schizophrenia as indexed by clinical interviews or laboratory-based tasks. However, little work has examined whether these factors relate to the real-world pursuit of goal-directed activities in this population.MethodsThis study aimed to fill this gap by using Ecological Momentary Assessment (four survey prompts per day for 1 week) to test hypotheses about symptom, effort allocation, cognitive, and functional measures associated with planned and completed goal-directed behavior in the daily lives of 63 individuals with schizophrenia.ResultsIndividuals with schizophrenia completed more goal-directed activities than they planned [t(62) = −4.01,p< 0.001]. Motivation and pleasure (i.e. experiential) negative symptoms, controlling for depressive symptoms, negatively related to planned goal-directed behavior [odds ratio (OR) 0.92,p =0.005]. Increased effort expenditure for high probability rewards (planned: OR 1.01,p =0.034, completed: OR 1.01,p =0.034) along with performance on a daily functional skills task (planned: OR 1.04,p =0.002, completed: OR 1.03,p =0.047) negatively related to both planned and completed goal-directed activity.ConclusionsOur results present correlates of real-world goal-directed behavior that largely align with impaired ability to make future estimations in schizophrenia. This insight could help identify targeted treatments for the elusive motivated behavior deficits in this population.
Time-optimal cornering trajectory planning for car-like mobile robots containing actuator dynamics
Authors: Byeon Yong Jin , Kim Byung Kook 
Published: November 2021

AbstractWe establish a highly feasible algorithm for time-optimal cornering trajectory planning (TP) for car-like mobile robots (CLMRs) based on a dynamic model that contains actuator dynamics. First, we formulate an accurate dynamic model of a robot that contains DC motor actuators; this includes steering braking (caused by the lateral force of the front steering wheel) and two types of friction (viscous and Coulomb) under a nonslip condition. Our TP algorithm can utilize the full power of the DC motor actuators within proper pulse width modulation bounds and generated torque limits. Then, we establish an algorithm for a time-optimal cornering trajectory planning for CLMRs (TOCTP-CLMR). Our algorithm divides the trajectory into five sections comprising three turnings and two translations to minimize the travel distance. Then, we utilize the quickest rotation when turning to construct the time-optimal trajectory that satisfies the bang-bang principle. In addition, simulations are performed to demonstrate the validity of this method. Finally, we conduct open-loop experiments to validate our dynamic model and a trajectory tracking experiment to demonstrate the feasibility of the TOCTP-CLMR trajectory.
Longitudinal examination of resilience among child welfare-involved adolescents: The roles of caregiver–child relationships and deviant peer affiliation
Authors: Yoon Susan , Sattler Kierra , Knox Jerica , Xin Yitong 
Published: November 2021

AbstractDespite growing attention to resilience following childhood maltreatment, it remains unclear how the development of resilience unfolds over time among child welfare-involved adolescents. Further, little is known about the immediate and enduring effects of two important attachments in children’s lives, namely caregiver–child relationship and deviant peer affiliation, on resilience development over time. This study sought to examine the ways in which caregiver–child relationships and deviant peer affiliation shape developmental trajectories of resilience among child welfare-involved youth. Data were drawn from the National Survey of Child and Adolescent Well-Being. Latent growth curve modeling was conducted on a sample of 711 adolescents. The results revealed that adolescents’ resilience increased across a 36-month period since initial contact with Child Protective Services. Better caregiver–child relationships were associated with a higher initial level of resilience among adolescents, whereas higher deviant peer affiliation was associated with a lower initial level of resilience. Significant lagged effects were also found; caregiver–child relationship quality and deviant peer affiliation at baseline were associated with resilience at 18 months after. The findings suggest that interventions that aim to promote positive caregiver–child relationships and prevent deviant peer relationships may help foster resilience among adolescents who have experienced child maltreatment.
Armed escorts to humanitarian convoys: An unexplored framework under international humanitarian law
Authors: Bassil Annabel 
Published: November 2021

AbstractThe use of armed escorts to humanitarian convoys delivering humanitarian assistance potentially increases the targeting of these convoys, yet so far this use has not been examined from the perspective of international humanitarian law (IHL). This article attempts to determine whether the resort to armed escorts is in line with the principle of passive precautions under IHL, how the principle of proportionality could apply in cases of attack against the escort, and whether the convoy turns into a military objective when escorted. Finally, the article tackles the limitations of such a framework in order to define the situations it covers.
Hidden Identities in Contemporary Cambodian Photography
Authors: Kim Suzie 
Published: November 2021

AbstractThis article examines the works of three photographers, Kim Hak (b. 1981), Khvay Samnang (b. 1982), and Neak Sophal (b. 1989), all born in the post-Khmer Rouge era and all established relatively early in their careers. These third-generation Cambodian photographers construct portraitures that steer away from identity to address the larger issues of individuals and local communities in present-day Cambodia, which still lives in the shadow of the trauma of the Khmer Rouge. Kim's photography avoids a direct representation of people who suffered through the Khmer Rouge regime and instead presents small, ordinary objects that were kept secretly in their household; Khvay documents the hardship of local communities in Phnom Penh and their questioned identity by portraying masked faces; Neak questions the hardship of the youth, women, and townspeople through the erasure of face in her series of photographs depicting various community groups in Cambodia. This subtle avoidance of portraying individuals in a direct, straightforward way signifies a multi-faceted interpretation of the traumatic past, its resilience, and the newly added social problems of contemporary Cambodia, which struggles in the aftermath of the genocide and more recent economic growth.
Mechanisms of Fast Walker Circulation Responses to CO2 Forcing
Authors: Lu Kezhou , He Jie , Fosu Boniface , Rugenstein Maria 
Published: November 2021

AbstractThe Walker circulation (WC) responds to CO2 forcing at both short and long timescales. In climate models, the fast response accounts for a substantial portion of the total responses, but its mechanisms, particularly those pertaining to air‐sea interactions, remain unclear. We find contrasting fast WC responses in the first 2 years of abrupt CO2 forcing, determined by the models' air‐sea coupling strength in the equatorial Pacific. In models with a strong coupling, wind anomalies induced by the instantaneous land‐sea thermal contrast trigger a Bjerknes feedback, leading to cooling in the equatorial Pacific and WC strengthening. The WC weakens gradually as the Bjerknes feedback wanes and the subsurface warm pool water migrates eastward as Kelvin waves. In models with a weaker coupling, the WC weakens monotonically. Our results suggest that the inter‐model discrepancy in WC changes is associated with the uncertainty in the fast component.
Local and Global Sensitivity Analysis of a Reactive Transport Model Simulating Floodplain Redox Cycling
Authors: Perzan Z. , Babey T. , Caers J. , Bargar J. R. , Maher K. 
Published: November 2021

AbstractReactive transport models (RTMs) are essential tools that simulate the coupling of advective, diffusive, and reactive processes in the subsurface, but their complexity makes them difficult to understand, develop and improve without accompanying statistical analyses. Although global sensitivity analysis (SA) can address these issues, the computational cost associated with most global SA techniques limits their use with RTMs. In this study, we apply distance‐based generalized sensitivity analysis (DGSA), a novel and computationally efficient method of global SA, to a floodplain‐scale RTM and compare DGSA results to those from local SA. Our test case focuses on the impact of 17 uncertain environmental parameters on spatially and temporally variable redox conditions within a floodplain aquifer. The input parameters considered include flow and diffusion rates, geochemical reaction rates, and the spatial distribution of sediment facies. Sensitivity was evaluated for three distinct components of the model response, encompassing both multidimensional and categorical output. Parameter rankings differ between local SA and DGSA, due to nonlinear effects of individual parameters and interaction effects between parameters. DGSA results show that fluid residence time, which is controlled by aquifer permeability, generally exerts a stronger control on redox conditions than do geochemical reaction rates. Sensitivity indices also demonstrate that sulfate reduction is key for establishing and maintaining reducing conditions throughout the aquifer. These results provide insights into the key drivers of heterogeneous redox processes within floodplain aquifers, as well as the main sources of uncertainty when modeling complex subsurface systems.
Storage in South‐Eastern Australian Catchments
Authors: Buzacott Alexander J. V. , Vervoort R. Willem 
Published: November 2021

AbstractStorage and subsequent release of water is a key function of catchments that moderates the impact of meteorological and climate extremes. Despite the fact that many key hydrological processes depend upon storage, there are relatively few studies that focus on storage itself. Storage is difficult to quantify due to catchment heterogeneity and the paucity of data on key catchment characteristics that largely determine storage, such as soil, hydrogeology, and topography. We adopt a multi‐method approach to estimate the dynamic and extended dynamic storages using hydrometric data in 69 catchments in the Murray‐Darling Basin in south‐eastern Australia. We test relationships between the derived catchment storages and hydrological and physical characteristics that potentially control storage. The study catchments tended to have small dynamic storages relative to the extended dynamic storage; proportionally the dynamic storages were all less than 10% of the extended dynamic storage. While storage estimates produced by the different methods and study catchments varied, the order in which they ranked was consistent. Correlations between catchment characteristics and estimates of storage were inconsistent; however, the results indicated that greater storage is strongly associated with steeper catchments and smoother hydrographs. This study highlights limitations in the current methodology to derive storage and the quality of widely applied hydrometric data. We reinforce the need to collect data that can validate storage estimates and call for new approaches that can broadly estimate storage at the catchment scale.