bluuebunny/crossref_metadata_2025_split huggingface dataset:
Space missions: psychological and psychopathological issues
Authors: Marazziti Donatella , Arone Alessandro , Ivaldi Tea , Kuts Konstantin , Loganovsky Konstantin 
Published: May 2021

AbstractExploring space is one of the most attractive goals that humanity ever set, notwithstanding, there are some psychological and psychopathological risks that should be considered. Several studies identified some possible hazards of space travels and related physical and psychological consequences on astronauts. If some psychological reactions are obviously inherent to the characteristics of the spaceships (habitability, confinement, psychological, and interpersonal relationships), other (disturbances of sleep-wake cycle, personality changes, depression, anxiety, apathy, psychosomatic symptoms, neurovestibular problems, alterations in cognitive function, and sensory perception) represent a clear warning of possible central nervous system (CNS) alterations, possibly due to microgravity and cosmic radiation. Such conditions and eventual CNS changes might compromise the success of missions and the ability to cope with unexpected events and may lead to individual and long-term impairments. Therefore, further studies are needed, perhaps, requiring the birth of a novel branch of psychology/psychiatry that should not only consider the risks related to space exploration, but the implementation of targeted strategies to prevent them.
The Seductions of Clarity
Authors: Nguyen C. Thi 
Published: May 2021

AbstractThe feeling of clarity can be dangerously seductive. It is the feeling associated with understanding things. And we use that feeling, in the rough-and-tumble of daily life, as a signal that we have investigated a matter sufficiently. The sense of clarity functions as athought-terminating heuristic. In that case, our use of clarity creates significant cognitive vulnerability, which hostile forces can try to exploit. If an epistemic manipulator can imbue a belief system with an exaggerated sense of clarity, then they can induce us to terminate our inquiries too early – before we spot the flaws in the system. How might the sense of clarity be faked? Let’s first consider the object of imitation: genuine understanding. Genuine understanding grants cognitive facility. When we understand something, we categorize its aspects more easily; we see more connections between its disparate elements; we can generate new explanations; and we can communicate our understanding. In order to encourage us to accept a system of thought, then, an epistemic manipulator will want the system to provide its users with an exaggerated sensation of cognitive facility. The system should provide its users with the feeling that they can easily and powerfully create categorizations, generate explanations, and communicate their understanding. And manipulators have a significant advantage in imbuing their systems with a pleasurable sense of clarity, since they are freed from the burdens of accuracy and reliability. I offer two case studies of seductively clear systems: conspiracy theories; and the standardized, quantified value systems of bureaucracies.
The Limits of Meritocracy in Stabilizing Democracy and the Twin Importance of Bureaucratic Impartiality and Effectiveness
Authors: Andersen David Delfs Erbo 
Published: May 2021

AbstractTheories connecting meritocracy and democratic stability are heavily understudied, and there are few attempts to empirically disentangle the potential mechanisms. This article proposes a novel explanation, emphasizing that bureaucratic impartiality and effectiveness provide separate shields that stabilize democracies. Impartiality protects the opposition from unlawful discrimination, which raises support for democracy among the (potential) losers of elections and reduces the incentives to rebel or stage coups d’état, whereas effectiveness serves incumbent policies, which raises support among the (potential) winners and reduces the likelihood of incumbent takeovers. I find support for these propositions in comparative-historical analyses of a few paradigmatic cases—interwar Finland, Czechoslovakia, and Germany—with similar levels of economic development, imperial-autocratic legacies, and meritocratic types of administration but different regime outcomes. The results show that both impartial and effective bureaucratic behavior rather than meritocratic recruitment norms as such are important stabilizers of democracy. Yet they emphasize the importance of bureaucratic effectiveness in raising the perception that votes count to change outcomes on the ground and thus that democracy makes a difference. I argue that this should have a wider significance for the study of contemporary processes of democratic recession.
Varieties of Social Democracy and Cooperativism: Explaining the Historical Divergence between Housing Regimes in Nordic and German-Speaking Countries
Authors: Kohl Sebastian , Sørvoll Jardar 
Published: May 2021

AbstractThe historical-comparative study of social democracy and cooperative organization are the foster children of historical sociology. This article offers a first account of systematic ideological differences in social-democratic ideology regarding private ownership and different cooperative traditions in the housing sphere of Northern European and continental German-speaking countries. The long-run trajectory of housing welfare regimes in these two country groups has been one of divergence: Nordic countries have moved to Anglo-Saxon levels of high homeownership, high levels of mortgage indebtedness, and house price increases, whereas private tenancy, lower indebtedness, and lower price increases still characterize their German counterparts. Based on historical case studies of Germany and Norway, we argue that the divergence in these two countries can be understood by the different social-democratic and cooperative solutions to the urban housing question from the 1920s onward. Supported by a pro-ownership social democracy, Norway started to develop housing cooperatives of the owner cooperative type, whereas German social democracy was in favor of associations of the tenant cooperative type. The differential growth of these two types of cooperatives and disparities in social democratic party ideology contributed to the urban housing divergence between the two country groups that has been observed ever since. We argue, more generally, that varieties of social democracy and welfare-anticipating cooperative organizations are important in helping us understand the welfare differences between countries.
The Influence of a Deep‐Water Intrusion on the Distribution of Chrysaora melanaster in the Southeastern Bering Sea
Authors: Huo Yuanzi , Decker Mary Beth , Wang Linlin , Zhao Jian , Lemoine Hayley , Lankowicz Katie , Bi Hongsheng 
Published: May 2021

AbstractScyphozoan jellyfish are conspicuous components of marine ecosystems, which during a bloom, can impact food web structure and economically important fisheries. Jellyfish biomass in the southeastern Bering Sea (SEBS) is primarily composed of Chrysaora melanaster and has varied widely over the past four decades, yet the underlying causes of these biomass fluctuations remain unclear. The present study investigated the spatial and seasonal dynamics of C. melanaster along the Alaska Peninsula in the SEBS using an adaptive resolution imaging sonar system and nets in June–July and September 2018. The abundance of C. melanaster was high in coastal waters near the Alaska Peninsula, with peak densities occurring east of Unimak Island in both sampling periods. The current pattern revealed by an acoustic Doppler current profiler showed that cold, deep water from Bering Canyon flowed onto the shelf east of Unimak Pass. Differences in the strength of this cross‐isobath, deep‐water intrusion were observed during the two sampling periods. This flow may have influenced the distribution of C. melanaster by constraining the mixed coastal water near of Unimak Island in June‐July and by transporting medusae westward, into deeper water in September, after the deep‐water intrusion weakened. The present study provides a new mechanistic understanding of how regional‐scale ocean variability in the SEBS affects C. melanaster distribution.
Estimating Vertical Land Motion and Residual Altimeter Systematic Errors Using a Kalman‐Based Approach
Authors: Rezvani Mohammad‐Hadi , Watson Christopher S. , King Matt A. 
Published: May 2021

AbstractVertical land motion (VLM) is the connection between absolute sea‐level (ASL) from a satellite altimeter (ALT) and relative sea‐level from a tide gauge (TG). VLM is often sparsely observed yet is required for understanding sea‐level rise. Many studies have sought to exploit ALT and TG data to infer VLM, yet regionally correlated systematic errors in altimetry have not been considered. We have developed a Kalman filtering and smoothing framework to simultaneously estimate location‐specific VLM and residual mission‐specific systematic errors in a geocentric reference frame. We used ALT minus TG, ALT crossovers and global positioning system (GPS) bedrock height observations in a multi‐stage solution approach that gradually separated time‐variable parameter estimates in an ill‐posed problem. We evaluated the performance of the method using the Jason‐series along‐track data in the Baltic Sea, where glacial isostatic adjustment is the dominant driver of VLM. We estimated local VLM variability at TGs of up to ∼4.5 mm/yr which is not evident in spatially interpolated GPS velocities. The estimated regional altimeter errors are significant and within the range of ∼±0.5–2.5 mm/yr. Our approach improves agreement between ASL estimates from ALT and TG records, provides a ∼20% decrease in root mean squared error of latitudinal ASL variability at TGs, and a reduction of the ASL rate from altimetry by ∼0.3 mm/yr across the region. This method advances the ALT‐TG approach to determining VLM at TG locations and systematic errors of altimetry, which is broadly applicable to other regional‐ and global‐scale studies.
Projecting Permafrost Thaw of Sub‐Arctic Tundra With a Thermodynamic Model Calibrated to Site Measurements
Authors: Garnello A. , Marchenko S. , Nicolsky D. , Romanovsky V. , Ledman J. , Celis G. , Schädel C. , Luo Y. , Schuur E. A. G. 
Published: May 2021

AbstractNorthern circumpolar permafrost thaw affects global carbon cycling, as large amounts of stored soil carbon becomes accessible to microbial breakdown under a warming climate. The magnitude of carbon release is linked to the extent of permafrost thaw, which is locally variable and controlled by soil thermodynamics. Soil thermodynamic properties, such as thermal diffusivity, govern the reactivity of the soil‐atmosphere thermal gradient, and are controlled by soil composition and drainage. In order to project permafrost thaw for an Alaskan tundra experimental site, we used seven years of site data to calibrate a soil thermodynamic model using a data assimilation technique. The model reproduced seasonal and interannual temperature dynamics for shallow (5–40 cm) and deep soil layers (2–4 m), and simulations of seasonal thaw depth closely matched observed data. The model was then used to project permafrost thaw at the site to the year 2100 using climate forcing data for three future climate scenarios (RCP 4.5, 6.0, and 8.5). Minimal permafrost thawing occurred until mean annual air temperatures rose above the freezing point, after which we measured over a 1 m increase in thaw depth for every 1 °C rise in mean annual air temperature. Under no projected warming scenario was permafrost remaining in the upper 3 m of soil by 2100. We demonstrated an effective data assimilation method that optimizes parameterization of a soil thermodynamic model. The sensitivity of local permafrost to climate warming illustrates the vulnerability of sub‐Arctic tundra ecosystems to significant and rapid soil thawing.
Using Additional Moderator to Control the Footprint of a COSMOS Rover for Soil Moisture Measurement
Authors: Badiee Amir , Wallbank John R. , Fentanes Jaime Pulido , Trill Emily , Scarlet Peter , Zhu Yongchao , Cielniak Grzegorz , Cooper Hollie , Blake James R. , Evans Jonathan G. , Zreda Marek , Köhli Markus , Pearson Simon 
Published: May 2021

AbstractCosmic‐Ray Neutron Probes (CRNP) have found application in soil moisture (SM) estimation due to their conveniently large (>100 m) footprints. Here, we explore the possibility of using high‐density polyethylene (HDPE) moderator to limit the field of view, and hence, the footprint of a SM sensor formed of 12 CRNP mounted on to a mobile robotic platform (Thorvald) for better in‐field localization of moisture variation. Ultra Rapid Adaptable Neutron‐Only Simulation neutron scattering simulations are used to show that 5 cm of additional HDPE moderator (used to shield the upper surface and sides of the detector) is sufficient to (a) reduce the footprint of the detector considerably, (b) approximately double the percentage of neutrons detected from within 5 m of the detector, and (c) does not affect the shape of the curve used to convert neutron counts into SM. Simulation and rover measurements for a transect crossing between grass and concrete additionally suggest that (d) SM changes can be sensed over a length scales of tens of meters or less (roughly an order of magnitude smaller than commonly used footprint distances), and (e) the additional moderator does not reduce the detected neutron count rate (and hence increase noise) as much as might be expected given the extent of the additional moderator. The detector with additional HDPE moderator was also used to conduct measurements on a stubble field over three weeks to test the rover system in measuring spatial and temporal SM variation.
Composition of the Sub‐Cratonic Mantle of the Guiana Shield Inferred From Diamond‐Hosted Inclusions
Authors: Bassoo R. , Befus K. S. 
Published: May 2021

AbstractThe composition of diamond‐hosted inclusions provides insight into the character of the sub‐cratonic lithosphere of the Guiana Shield. Guyana's Paleoproterozoic diamonds preserve an inclusion suite comprised of forsterite (Fo ∼89.3–91.8), enstatite, chromite, and Cr‐pyrope. Raman thermobarometry of entrapped olivine and pyrope inclusions indicate entrapment pressures of ∼5.3–7.0 GPa. Unpolarized Fourier transform infrared spectroscopic measurements of forsterite and enstatite inclusions produce low absorbances from OH. Using established calibrations, those absorbances indicate forsterite and enstatite contain median values of 26 ± 14 and 14 ± 18 ppm H2O, respectively, and suggest a high effective viscosity of 1023.7 ± 2.1 Pa∙s for the lithospheric mantle. When combined with inclusion thermobarometry, diamond residence temperatures suggest paleo‐geotherms ranging from 35 to 40 mW m−2. Low‐to‐moderate Fe2O3 content (1.9 ± 0.8 wt.%) and low oxygen fugacity (log ƒO2 (ΔFMQ) −1.6 ± 1.1) determined from chromite inclusions indicate crystallization in reducing conditions. Forsterite and chromite inclusions retain evidence for metasomatic alteration, including Mn‐enrichment in forsterite and chromite rich in Zn. These characteristics indicate that the sub‐cratonic lithosphere of the Guiana Shield experienced episodes of partial melting and fluid‐driven metasomatism of dry, strongly viscous, and moderately depleted garnet‐spinel harzburgite. The Guiana Shield has been relatively stable since the Paleoproterozoic, meaning diamond inclusions may also provide the best means for understanding current conditions in the region's lithospheric mantle.
Submarine Canyon Oxygen Anomaly Caused by Mixing and Boundary‐Interior Exchange
Authors: McPhee‐Shaw Erika E. , Kunze Eric , Girton James B. 
Published: May 2021

AbstractClosely spaced CTD stations showed elevated oxygen within Monterey Submarine Canyon. Anomalously high (2–5 μmol kg−1) dissolved oxygen was found between 600–1,100 m in the O2 minimum, co‐located with a turbulence hotspot caused by convergence of upcanyon, semidiurnal internal tidal energy flux. Furthermore, the oxygen anomaly extended >10 km downcanyon at the same depth and isopycnals of a previously identified intrusion predicted from buoyancy conservation. We show that dissolved oxygen and fine suspended particles act as independent tracers to (a) validate previous microstructure observations of intense turbulence extending >400 m above the bed (mab) at the canyon hotspot, and (b) track boundary‐interior exchange driven by mixing in the form of isopyncal‐spreading of anomalies away from a near‐boundary source. This study demonstrates the use of oxygen, commonly measured with shipboard profiling, as a tool for tracking mixing and lateral dispersal.
Stakeholder engagement to ensure the sustainability of biobanks: a survey of potential users of biobank services
Authors: Klingler Corinna , von Jagwitz-Biegnitz Magdaléna , Baber Ronny , Becker Karl-Friedrich , Dahl Edgar , Eibner Cornelius , Fuchs Jörg , Groenewold Maike K. , Hartung Mara Lena , Hummel Michael , Jahns Roland , Kirsten Romy , Kopfnagel Verena , Maushagen Regina , Nussbeck Sara Yasemin , Schoneberg Anne , Winter Theresa , Specht Cornelia 
Published: May 2021

AbstractBiobanks are important infrastructures facilitating biomedical research. After a decade of rolling out such infrastructures, a shift in attention to the sustainability of biobanks could be observed in recent years. In this regard, an increase in the as yet relatively low utilisation rates of biobanks has been formulated as a goal. Higher utilisation rates can only be achieved if the perspectives of potential users of biobanks—particularly researchers not yet collaborating with biobanks—are adequately considered. To better understand their perspectives, a survey was conducted at ten different research institutions in Germany hosting a centralised biobank. The survey targeted potential users of biobank services, i.e. researchers working with biosamples. It addressed the general demand for biosamples, strategies for biosample acquisition/storage and reasons for/against collaborating with biobanks. In total, 354 researchers filled out the survey. Most interestingly, only a minority of researchers (12%) acquired their biosamples via biobanks. Of the respondents not collaborating with biobanks on sample acquisition, around half were not aware of the (services of the) respective local biobank. Those who actively decided against acquiring biosamples via a biobank provided different reasons. Most commonly, respondents stated that the biosamples required were not available, the costs were too high and information about the available biosamples was not readily accessible. Biobanks can draw many lessons from the results of the survey. Particularly, external communication and outreach should be improved. Additionally, biobanks might have to reassess whether their particular collection strategies are adequately aligned with local researchers’ needs.
The effect of obstructive sleep apnea on peripheral blood amino acid and biogenic amine metabolome at multiple time points overnight
Authors: Kiens Ott , Taalberg Egon , Ivanova Viktoria , Veeväli Ketlin , Laurits Triin , Tamm Ragne , Ottas Aigar , Kilk Kalle , Soomets Ursel , Altraja Alan 
Published: May 2021

AbstractThere are no clinical studies that have investigated the differences in blood serum metabolome between obstructive sleep apnea (OSA) patients and controls. In a single-center prospective observational study, we compared metabolomic profiles in the serum of OSA patients with apnea–hypopnea index (AHI) ≥ 15/h and control individuals. Peripheral blood was obtained at 3 different time points overnight: 9:00 p.m.; 5:00 a.m. and 7:00 a.m. We used a targeted approach for detecting amino acids and biogenic amines and analyzed the data with ranked general linear model for repeated measures. We recruited 31 patients with moderate-to-severe OSA and 32 controls. Significant elevations in median concentrations of alanine, proline and kynurenine in OSA patients compared to controls were detected. Significant changes in the overnight dynamics of serum concentrations occurred in OSA: glutamine, serine, threonine, tryptophan, kynurenine and glycine levels increased, whereas a fall occurred in the same biomarker levels in controls. Phenylalanine and proline levels decreased slightly, compared to a steeper fall in controls. The study indicates that serum profiles of amino acid and biogenic amines are significantly altered in patients with OSA referring to vast pathophysiologic shifts reflected in the systemic metabolism.
Assessment of optogenetically-driven strategies for prosthetic restoration of cortical vision in large-scale neural simulation of V1
Authors: Antolik Jan , Sabatier Quentin , Galle Charlie , Frégnac Yves , Benosman Ryad 
Published: May 2021

AbstractThe neural encoding of visual features in primary visual cortex (V1) is well understood, with strong correlates to low-level perception, making V1 a strong candidate for vision restoration through neuroprosthetics. However, the functional relevance of neural dynamics evoked through external stimulation directly imposed at the cortical level is poorly understood. Furthermore, protocols for designing cortical stimulation patterns that would induce a naturalistic perception of the encoded stimuli have not yet been established. Here, we demonstrate a proof of concept by solving these issues through a computational model, combining (1) a large-scale spiking neural network model of cat V1 and (2) a virtual prosthetic system transcoding the visual input into tailored light-stimulation patterns which drive in situ the optogenetically modified cortical tissue. Using such virtual experiments, we design a protocol for translating simple Fourier contrasted stimuli (gratings) into activation patterns of the optogenetic matrix stimulator. We then quantify the relationship between spatial configuration of the imposed light pattern and the induced cortical activity. Our simulations in the absence of visual drive (simulated blindness) show that optogenetic stimulation with a spatial resolution as low as 100 $$\upmu$$
μ
m, and light intensity as weak as $$10^{16}$$

10
16

photons/s/cm$$^2$$

2

is sufficient to evoke activity patterns in V1 close to those evoked by normal vision.
A three-branch 3D convolutional neural network for EEG-based different hand movement stages classification
Authors: Liu Tianjun , Yang Deling 
Published: May 2021

AbstractMotor Imagery is a classical method of Brain Computer Interaction, in which electroencephalogram (EEG) signal features evoked by the imaginary body movements are recognized, and relevant information is extracted. Recently, various deep learning methods are being focused on finding an easy-to-use EEG representation method that can preserve both temporal information as well as spatial information. To further utilize the spatial and temporal features of EEG signals, we proposed a 3D representation of EEG and an end-to-end EEG three-branch 3D convolutional neural network, to address the class imbalance problem (dataset show unequal distribution among their classes), we proposed a class balance cropped strategy. Experimental results indicated that there are also a problem of the different classification difficulty for different classes in motor stages classification tasks, we introduce focal loss to address problem of ‘easy-hard’ examples, when trained with the focal loss, the three-branch 3D-CNN network achieve good performance (relatively more balanced classification accuracy of binary classifications) on the WAY-EEG-GAL data set. Experimental results show that the proposed method is a good method, which can improve classification effect of different motor stages classification.