bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cooperative guidance law for intercepting a hypersonic target with impact angle constraint
Authors: Liu S. , Yan B. , Liu R. , Dai P. , Yan J. , Xin G. 
Published: January 2022

AbstractThe cooperative guidance problem of multiple inferior missiles intercepting a hypersonic target with the specific impact angle constraint in the two-dimensional plane is addressed in this paper, taking into consideration variations in a missile’s speed. The guidance law is designed with two subsystems: the direction of line-of-sight (LOS) and the direction of normal to LOS. In the direction of LOS, by applying the algebraic graph theory and the consensus theory, the guidance command is designed to make the system convergent in a finite time to satisfy the goal of cooperative interception. In the direction of normal to LOS, the impact angle is constrained to transform into the LOS angle at the time of interception. In view of the difficulty of measuring unknown target acceleration information in real scenarios, the guidance command is designed by utilising a super-twisting algorithm based on a nonsingular fast-terminal sliding mode (NFTSM) surface. Numerical simulation results manifest that the proposed guidance law performs efficiently and the guidance commands are free of chattering. In addition, the overall performance of this guidance law is assessed with Monte Carlo runs in the presence of measurement errors. The simulation results demonstrate that the robustness can be guaranteed, and that overall efficiency and accuracy in intercepting the hypersonic target are achieved.
The Political Conception of Human Rights and Its Rule(s) of Recognition
Authors: Campos Andre Santos 
Published: January 2022

AbstractThe political conception makes sense of human rights strictly in light of their role in international human rights practice, more specifically by describing how they justify interventions against states that engage in or fail to prevent human rights violations. This conception is, therefore, normative and fact-dependent. Beyond this, it does not seem to have much to say about the actual nature of international human rights practice. The argument sustained here reinterprets the political conception by resorting to a heuristic device that explains how normativity can be fact-dependent: the Hartian model. The characteristics of H.L.A. Hart’s rule of recognition are useful to determine the characteristics of human rights practice from the viewpoint of the political conception. Also, they help to overcome some of the problems typically faced by the political conception, such as whether there is only one practice or many, whether the notion of human rights becomes too contingent on the way the world is currently organised, how agents can violate content-changing practices, or how reliance on current states of affairs leaves room for criticism of those states of affairs.
Konservat-Lagerstätten from the Upper Jurassic lithographic limestone of the Causse Méjean (Lozère, southern France): palaeontological and palaeoenvironmental synthesis
Authors: Moreau Jean-David , Vullo Romain , Charbonnier Sylvain , Jattiot Romain , Trincal Vincent , Néraudeau Didier , Fara Emmanuel , Baret Louis , Garassino Alessandro , Gand Georges , Lafaurie Gérard 
Published: January 2022

AbstractSince the 1980s, the Upper Jurassic lithographic limestone of the Causse Méjean (southern France) has been known by local naturalists to yield fossils. However, until the beginning of the 21st century, this plattenkalk remained largely undersampled and scientifically underestimated. Here, we present the results of two decades of prospection and sampling in the Drigas and the Nivoliers quarries. We provide the first palaeontological inventory of the fossil flora, the fauna and the ichnofauna for these localities. The fossil assemblages show the co-occurrence of marine and terrestrial organisms. Marine organisms include algae, bivalves, brachiopods, cephalopods (ammonites, belemnites and coleoids such as Trachyteuthis), echinoderms, decapod crustaceans (ghost shrimps, penaeoid shrimps and glypheoid lobsters) and fishes (including several actinopterygians and a coelacanth). Terrestrial organisms consist of plant remains (conifers, bennettitaleans, pteridosperms) and a single rhynchocephalian (Kallimodon cerinensis). Ichnofossils comprise traces of marine invertebrates (e.g. limulid trackways, ammonite touch mark) as well as coprolites and regurgitalites. Given the exquisite preservation of these fossils, the two quarries can be considered as Konservat-Lagerstätten. Both lithological features and fossil content suggest a calm, protected and shallow-marine environment such as a lagoon partially or occasionally open to the sea. Most fossils are allochthonous to parautochthonous and document diverse ecological habitats. Similarly to other famous Upper Jurassic plattenkalks of western Europe such as Solnhofen, Cerin or Canjuers, the Causse Méjean is a key landmark for our understanding of coastal/lagoonal palaeoecosystems during the Kimmeridgian–Tithonian interval.
The Pluri-Extractivist State: Regional Autonomy and the Limits of Indigenous Representation in Bolivia's Gran Chaco Province
Authors: Anthias Penelope 
Published: January 2022

AbstractOn 20 November 2016, residents of Gran Chaco Province in south-east Bolivia voted by popular referendum to approve a statute that established Gran Chaco as Bolivia's first autonomous region. This article examines regional autonomy in the Chaco as an example of how identities, territory and political power are being remapped at the intersection of an extractivist development model and competing visions of a plurinational state. I chart how regional autonomy, an elite-led project centred on demands for a fixed share of departmental gas royalties, has been institutionalised under the framework of plurinationalism and used to bolster central state power in this gas-rich region. The article considers the historical evolution of this regionalist project, its intersection with broader processes of state formation under the Movimiento al Socialismo (Movement towards Socialism, MAS) government and its implications for the Chaco's Indigenous peoples, who have achieved significant representation within the regional assembly while seeing their own visions of territorial autonomy sidelined by an extractivist development agenda.
SLC-VIO: a stereo visual-inertial odometry based on structural lines and points belonging to lines
Authors: Wei Chenchen , Tang Yanfeng , Yang Lingfang , Huang Zhi 
Published: January 2022

AbstractTo improve mobile robot positioning accuracy in building environments and construct structural three-dimensional (3D) maps, this paper proposes a stereo visual-inertial odometry (VIO) system based on structural lines and points belonging to lines. The 2-degree-of-freedom (DoF) spatial structural lines based on the Manhattan world assumption are used to establish visual measurement constraints. The property of point belonging to a line (PPBL) is used to initialize the structural lines and establish spatial distance-residual constraints between point and line landmarks in the reconstructed 3D map. Compared with the 4-DoF spatial straight line, the 2-DoF structural line reduces the variables to be estimated and introduces the orientation information of scenes to the VIO system. The utilization of PPBL makes the proposed system fully exploit the prior geometric information of environments and then achieves better performance. Tests on public data sets and real-world experiments show that the proposed system can achieve higher positioning accuracy and construct 3D maps that better reflect the structure of scenes than existing VIO approaches.
Identification and description of patients with multisystem inflammatory syndrome in adults associated with SARS-CoV-2 infection using the Premier Healthcare Database
Authors: DeCuir Jennifer , Baggs James , Melgar Michael , Patel Pragna , Wong Karen K. , Schwartz Noah G. , Morris Sapna Bamrah , Godfred-Cato Shana , Belay Ermias D. 
Published: January 2022

Abstract
Multisystem inflammatory syndrome in adults (MIS-A) is a hyperinflammatory illness related to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The characteristics of patients with this syndrome and the frequency with which it occurs among patients hospitalised after SARS-CoV-2 infection are unclear. Using the Centers for Disease Control and Prevention case definition for MIS-A, we created ICD-10-CM code and laboratory criteria to identify potential MIS-A patients in the Premier Healthcare Database Special COVID-19 Release, a database containing patient-level information on hospital discharges across the United States. Modified MIS-A criteria were applied to hospitalisations with discharge from March to December 2020. The proportion of hospitalisations meeting electronic health record criteria for MIS-A and descriptive statistics for patients in the potential MIS-A cohort were calculated. Of 34 515 SARS-CoV-2-related hospitalisations with complete clinical and laboratory data, 53 met modified criteria for MIS-A (0.15%). The median age was 62 years (IQR 52–74). Most patients met the severe cardiac illness criterion through either myocarditis (66.0%) or new-onset heart failure (35.8%). A total of 79.2% of patients required ICU admission, while 43.4% of patients in the cohort died. MIS-A appears to be a rare but severe outcome of SARS-CoV-2 infection. Additional studies are needed to investigate how this syndrome differs from severe coronavirus disease 2019 (COVID-19) in adults.
Within-dyad bidirectional relations among maternal depressive symptoms and child behavior problems from infancy through preschool
Authors: Curci Sarah G. , Somers Jennifer A. , Winstone Laura K. , Luecken Linda J. 
Published: January 2022

AbstractAlthough dyadic theory focuses on the impact of a mother’s mental health on her own child and the impact of a child’s mental health on their own mother, commonly used statistical approaches are incapable of distinguishing the desired within-dyad processes from between-dyad effects. Using autoregressive latent trajectory modeling with structured residuals, the current study evaluated within-dyad, bidirectional associations between maternal depressive symptoms and child behavior problems from child age 1–4.5 years among a sample of low-income, Mexican American women (N = 322, Mage = 27.8) and their children. Women reported on maternal depressive symptoms and child behavior problems during laboratory visits at child age 1, 1.5, 2, 3, and 4.5 years. Results provide novel evidence of child-driven bidirectional association between maternal depressive symptoms and child behavior problems at the within-dyad level as early as child age 1 year and within-person stability in child behavior problems emerging early in life.
Greenhouse Gas Exchange of a NW German Peatland, 18 Years After Rewetting
Authors: Schaller Carsten , Hofer Bernd , Klemm Otto 
Published: January 2022

AbstractUndisturbed peatlands are usually a sink of greenhouse gases (GHG), but turn to a GHG source when drained. While rewetting and restoration of drained peatlands play an important role in efforts to mitigate global warming, high uncertainties exist concerning the time period it takes after the start of rewetting until the point when the peatland becomes a GHG net sink. We investigated a site within the “Uchter Moor”, NW Germany. It is an oligotrophic raised bog, which was never used for agriculture, but was drained in 1950 for peat mining. In 1999, restoration began; now the ecosystem is in transition back to a typical raised bog vegetation with Eriophorum vaginatum, Molinia caerulea and Eriophorum angustifolium being the dominant species. Sphagnum cuspidatum appears in patches. From June 2016 to January 2018, an eddy covariance (EC) tower measured the fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). The flux of ozone (O3) was also measured for 6 months by EC and modeled for the remaining experimental period. Using the sustained global warming potential for a 100‐year time horizon, the balance of CO2, CH4, and N2O in 2017 was +500 ± 120 g CO2‐equiv m−2 a−1. The plus sign indicates a net emission of GHG into the atmosphere. Methane contributed 78% to this flux. The inclusion of O3 into the balance yielded a somewhat smaller total flux of +430 ± 120 g CO2‐equiv m−2 a−1. Overall, the peatland is still a source of GHG, 18 years after re‐wetting.
Influence of Seasonal Variability in Flux Attenuation on Global Organic Carbon Fluxes and Nutrient Distributions
Authors: de Melo Viríssimo Francisco , Martin Adrian P. , Henson Stephanie A. 
Published: January 2022

AbstractThe biological carbon pump is a key component of the marine carbon cycle. This surface‐to‐deep flux of carbon is usually assumed to follow a simple power law function, which imposes that the surface export flux is attenuated throughout subsurface waters at a rate dictated by the parameterization exponent. This flux attenuation exponent is widely assumed as constant. However, there is increasing evidence that the flux attenuation varies both spatially and seasonally. While the former has received some attention, the consequences of the latter have not been explored. Here we aim to fill the gap with a theoretical study of how seasonal changes in both flux attenuation and sinking speed affect nutrient distributions and carbon fluxes. Using a global ocean‐biogeochemical model that represents detritus explicitly, we look at different scenarios for how these varies seasonally, particularly the relative “phase” with respect to solar radiation and the “strength” of seasonality. We show that the sole presence of seasonality in the model‐imposed flux attenuation and sinking speed leads to a greater transfer efficiency compared to the non‐seasonal flux attenuation scenario, resulting in an increase of over 140% in some cases when the amplitude of the seasonality imposed is 60% of the non‐seasonal base value. This work highlights the importance of the feedback taking place between the seasonally varying flux attenuation, sinking speed and other processes, suggesting that the assumption of constant‐in‐time flux attenuation and sinking speed might underestimate how much carbon is sequestered by the biological carbon pump.
Characterizing Satellite Path Through Kelvin‐Helmholtz Instability Using a Mixing Parameter
Authors: Settino A. , Khotyaintsev Yu V. , Graham D. B. , Perrone D. , Valentini F. 
Published: January 2022

AbstractWe introduce the mixing parameter to analyze the in situ measurements of a Kelvin‐Helmholtz event observed by the Magnetospheric Multiscale mission. We define the mixing parameter, for both ions and electrons, using the well distinct particle energies which characterize the magnetosphere and magnetosheath plasmas. This parameter nicely identifies the different populations which are interacting at the Earth's magnetopause and the boundaries of Kelvin‐Helmholtz vortices. Thus, we analyze the crossing of each structure into a parameter space defined as the space of the electron mixing versus the ion mixing, where specific shapes occur according to the evolutionary phase of the Kelvin‐Helmholtz instability. All along the event, we observe three different types of shapes, namely a straight line, a simple loop, and a complex loop, which likely corresponds to linear waves, steepened waves, and rolled‐up vortices, respectively. The most complex shape (rolled‐up vortex) is observed mostly at the end of the interval, owing to fast growth of the instability which is connected to variations of the solar wind magnetic field orientation.
Increases in Benthic Particulate Export and Sedimentary Denitrification in the Northern Chukchi Sea Tied to Under‐Ice Primary Production
Authors: Payne C. M. , Arrigo K. R. 
Published: January 2022

AbstractChanging sea ice conditions have led to increases in net primary production (NPP) in the northern Chukchi Sea, driven in part by massive under‐ice phytoplankton blooms. These blooms increase particle export to the sediments and could affect the rate of sedimentary denitrification. We use a 1‐D coupled ecosystem model forced with satellite‐derived sea ice conditions to quantify changes in particle export, nitrification, and denitrification on the northern Chukchi shelf. Between 1988 and 2018, increases in annual NPP drove secular increases in particle export to the benthos (1.8 ± 0.8 mmol m−2 yr−1), water‐column and sedimentary nitrification (1.2 ± 0.4 and 1.1 ± 0.4 mmol m−2 yr−1, respectively), and sedimentary denitrification rates (1.3 ± 0.5 mmol m−2 yr−1). Increased annual export to the benthos and denitrification were driven by higher rates early in the year (from January to June) and are highest in years where under‐ice blooms (UIBs) dominate. Greater denitrification rates in the northern Chukchi Sea would likely reduce NPP in downstream regions such as the Greenland Sea and promote greater N2 fixation in the North Atlantic. Furthermore, sea ice loss and a change in advection of nitrogen (N)‐replete waters through the Bering Strait will likely increase winter N concentrations in the northern Chukchi Sea. Through N sensitivity experiments, we found that 30% of all added N was lost through denitrification, diminishing the N supply available downstream of the Chukchi Sea. Thus, increased particle export associated with UIBs has the potential to markedly alter the N cycle both in the northern Chukchi Sea and in adjacent waters.
Low‐Level Jets and the Convergence of Mars Data Assimilation Algorithms
Authors: Mooring Todd A. , Davis Gabrielle E. , Greybush Steven J. 
Published: January 2022

AbstractData assimilation is an increasingly popular technique in Mars atmospheric science, but its effect on the mean states of the underlying atmosphere models has not been thoroughly examined. The robustness of results to the choice of model and assimilation algorithm also warrants further study. We investigate these issues using two Mars general circulation models (MGCMs), with particular emphasis on zonal wind and temperature fields. When temperature retrievals from the Mars Global Surveyor Thermal Emission Spectrometer (TES) are assimilated into the U.K.‐Laboratoire de Météorologie Dynamique MGCM to create the Mars Analysis Correction Data Assimilation (MACDA) reanalysis, low‐level zonal jets in the winter northern hemisphere shift equatorward and weaken relative to a free‐running control simulation from the same MGCM. The Ensemble Mars Atmosphere Reanalysis System (EMARS) reanalysis, which is also based on TES temperature retrievals, also shows jet weakening (but less if any shifting) relative to a control simulation performed with the underlying Geophysical Fluid Dynamics Laboratory MGCM. Examining higher levels of the atmosphere, monthly mean three‐dimensional temperature and zonal wind fields are in generally better agreement between the two reanalyses than between the two control simulations. In conjunction with information about the MGCMs' physical parameterizations, intercomparisons between the various reanalyses and control simulations suggest that overall the EMARS control run is plausibly less biased (relative to the true state of the Martian atmosphere) than the MACDA control run. Implications for future observational studies are discussed.
Association of mitochondrial DNA haplogroup and hearing impairment with aging in Japanese general population of the Iwaki Health Promotion Project
Authors: Miura Shiori , Sasaki Akira , Kasai Shuya , Sugawara Takayuki , Maeda Yasunori , Goto Shinichi , Kasai Takashi , Shimizume Nami , Jung Songee , Iwane Takuro , Itoh Ken , Matsubara Atsushi 
Published: January 2022

AbstractAge-related hearing loss (ARHL) is a complex multifactorial disorder. Studies in animals, including mitochondria-mutator mice, and in human suggest that oxidative stress and mitochondrial disturbance play an important role in the pathoetiology of ARHL. Mitochondrial DNA (mtDNA) haplogroups are populations with genetically similar traits, and they have been reported to affect the mitochondrial function of oxidative phosphorylation. To gain further insights into the relationships between mitochondrial haplotypes and the susceptibility to cochlear aging, in this study, we aimed to elucidate how the differences in mtDNA haplogroups may affect ARHL development in Japanese general population. We focused on early onset ARHL, as the same mtDNA haplogroup can show either a negative or positive effect on systemic co-morbidities of ARHL that appear later in life. A total of 1167 participants of the Iwaki Health Promotion Project were surveyed in 2014, and 12 major haplotype groups (D4a, D4b, D5, G1, G2, M7a, M7b, A, B4, B5, N9, and F) were selected for the analysis. A total of 698 subjects aged 30 to 65 years were included in the statistical analysis, and the hearing loss group consisted of 112 males (40.3%) and 111 females (26.4%). Multiple logistic regression analysis showed that the male subjects belonging to haplogroup A had a significantly increased risk of hearing loss, whereas the female subjects belonging to haplogroup N9 had a significantly decreased risk of hearing loss. These results suggested that the mtDNA haplogroup may be an indicator for future risk of morbidity associated with ARHL.
Model based prediction of age-specific soil and dust ingestion rates for children
Authors: Özkaynak Haluk , Glen Graham , Cohen Jonathan , Hubbard Heidi , Thomas Kent , Phillips Linda , Tulve Nicolle 
Published: January 2022

AbstractBackgroundSoil and dust ingestion can be a primary route of environmental exposures. Studies have shown that young children are more vulnerable to incidental soil and dust ingestion. However, available data to develop soil and dust ingestion rates for some child-specific age groups are either lacking or uncertain.ObjectiveOur objective was to use the Stochastic Human Exposure and Dose Simulation Soil and Dust (SHEDS-Soil/Dust) model to estimate distributions of soil and dust ingestion rates for ten age ranges from infancy to late adolescents (birth to 21 years).MethodsWe developed approaches for modeling age groups previously not studied, including a new exposure scenario for infants to capture exposures to indoor dust via pacifier use and accounting for use of blankets that act as a barrier to soil and dust exposure.ResultsOverall mean soil and dust ingestion rates ranged from ~35 mg/day (infants, 0–<6 m) to ~60 mg/day (toddlers and young children, 6m–<11 yr) and were considerably lower (about 20 mg/day) for teenagers and late adolescents (16–<21 y). The pacifier use scenario contributed about 20 mg/day to the median dust ingestion rate for young infants. Except for the infant age groups, seasonal analysis showed that the modeled estimates of average summer mean daily total soil plus dust ingestion rates were about 50% higher than the values predicted for the winter months. Pacifier use factors and carpet dust loading values were drivers of exposure for infants and younger children. For older children, influential variables included carpet dust loading, soil adherence, and factors that capture the frequency and intensity of hand-to-mouth behaviors.SignificanceThese results provide modeled estimates of children’s soil and dust ingestion rates for use in decision making using real-world exposure considerations.Impact statementThe parameterization of scenarios to capture infant soil and dust ingestion and the application of SHEDS-Soil/Dust to a broader age range of children provides additional estimates of soil and dust ingestion rates that are useful in refining population-based risk assessments. These data illuminate drivers of exposure that are useful to both risk management applications and for designing future studies that improve upon existing tracer methodologies.