bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE SWAN POINT SITE, ALASKA: THE CHRONOLOGY OF A MULTI-COMPONENT ARCHAEOLOGICAL SITE IN EASTERN BERINGIA
Authors: Reuther Joshua D , Holmes Charles E , Smith Gerad M , Lanoe Francois B , Crass Barbara A , Rowe Audrey G , Wooller Matthew J 
Published: May 2023

ABSTRACTThe Swan Point site in interior Alaska contains a significant multi-component archaeological record dating back to 14,200 cal BP. The site’s radiocarbon (14C) chronology has been presented in scattered publications that mostly focus on specific archaeological periods in Alaska, in particular its terminal Pleistocene components associated with the East Beringian tradition. This paper synthesizes the site’s 14C data and provides sequential Bayesian models for its cultural zones and subzones. The 14C and archaeological record at Swan Point attests that the location was persistently used over the last 14,000 years, even though major changes are evident within regional vegetation and local faunal communities, reflecting long-term trends culminating in Dene-Athabascan history.
Exposure to ultra-processed foods during pregnancy and ultrasound fetal growth parameters
Authors: Lourenço Bárbara Hatzlhoffer , Castro Marcia C. , de Morais Sato Priscila , Neves Paulo Augusto Ribeiro , Vivanco Edwin , Lima Daniel Leal , Cardoso Marly Augusto ,   for the MINA-Brazil Study Group
Published: May 2023

AbstractPericonceptional maternal ultra-processed food (UPF) consumption impairs embryonic growth. Impacts of exposure to UPF on distinct components of fetal growth in late pregnancy are unknown. We investigated the influence of frequency of UPF consumption during pregnancy on fetal head circumference (HC), abdominal circumference (AC) and femur length (FL). This study included 417 live-born singleton pregnancies prospectively followed-up since the antenatal period in the MINA-Brazil Study, with an available ultrasound scan at >24 gestational weeks. Frequency of food groups consumption in the previous month was categorised as no/monthly, weekly or daily. Ultrasound scans were conducted at 27·8 (sd: 1·7) gestational weeks. HC, AC and FL z-scores were calculated for gestational age using the INTERGROWTH-21st Project standards. Simultaneous-quantile regression models were fitted at the 10th, 50th and 90th percentiles of the distribution of each ultrasound parameter according to UPF consumption, with adjustment for potential confounders. Participants were aged on average 24·7 (sd: 6·5) years, 44·8 % were primiparous, and 26·9 % and 24·9 %, respectively, had weekly and daily UPF consumption. Compared with no/monthly intake, daily UPF consumption impaired HC across its distribution, with significant effect sizes varying from –0·24 to –0·40 z-score. Weekly UPF consumption decreased HC at the 90th percentile by –0·39 z-score (95 % CI: –0·78, –0·01) and FL at the 50th percentile by –0·32 z-score (95 % CI: –0·60, –0·04). No association was noted with AC. Frequency of UPF consumption was negatively associated with skeletal components of fetal growth in late pregnancy. Infant body composition may benefit from healthy food practices since pregnancy.
Transformative pedagogy for inclusion and social justice through translanguaging, co-learning, and transpositioning
Authors: Wei Li 
Published: May 2023

AbstractThe idea of translanguaging has disrupted much of the thinking in bilingual education. A common misunderstanding, however, is that translanguaging was intended to be a language teaching strategy. This article seeks to explore what a translanguaging approach to language teaching entails, with specific reference to the education of minoritized and racialized bilingual and multilingual learners in the school systems in English-dominant countries such as the UK. In particular, I highlight the connections with and contributions to the inclusion and social justice agenda that the translanguaging project aims to make. Translanguaging takes one step further from multilingualism in challenging the raciolinguistic ideologies that view bilingual learners as having separate languages and languaging lives. It instead views their racial/ethnic identities and linguistic practices together, that is, their translanguaging being. My main argument here is that to use translanguaging as a pedagogy for inclusion and social justice requires a change of mindset, not just practice – that is, translanguaging pedagogy rather than pedagogical translanguaging – which can be achieved through processes of ‘co-learning’ and ‘transpositioning’.
Multistage approach for trajectory optimization for a wheeled inverted pendulum passing under an obstacle
Authors: Zauner Christian , Gattringer Hubert , Müller Andreas 
Published: May 2023

AbstractA robotic system constructed as a wheeled inverted pendulum (WIP) serves as an impressive demonstrator, since this kind of system is inherently nonlinear, unstable, and nonminimum phase. These properties may pose several difficulties, when it comes to control and trajectory planning. This paper shows a method for deriving a highly dynamic trajectory compliant with the system dynamics by means of solving an optimal control problem (OCP) using multiple shooting. The assumed task includes that the WIP should pass a height-restricting barrier. This can be achieved by leaning back or forth, in order to reduce the overall height of the WIP. The constraints inherent to the definition of this trajectory are nonconvex due to the shape of the robot. The constraint functions have a local minimum in an infeasible region. This can cause problems when the initial guess is within this infeasible region. To overcome this, a multistage approach is proposed for this special OCP to evade the infeasible local minimum. After solving four stages of subsequent optimization problems, the optimal trajectory is obtained and can be used as feedforward for the real system.
Building State-controlled Volunteering in China
Authors: Hu Ming , Zhang Qianjin , Sidel Mark 
Published: May 2023

AbstractThe dominant role of the authoritarian state in Chinese volunteerism has been noted but little examined in the scholarly literature. This study illuminates the ways in which the Chinese state controls and administers volunteerism and volunteering through a detailed analysis of the governance of volunteering in Beijing. Drawing on participant observation, interviews and archival research, we analyse how Beijing administers volunteering and its structures through the work of its administrative authority for managing volunteering in regulation and public policy, management structure, resources, internal operations, monitoring and evaluation. We argue that Beijing has built a comprehensive apparatus to manage and control volunteering through a Party- and state-controlled, multi-layered and centralized management structure. However, this state corporatist structure carries within it the seeds for over-formal controls and conflicts between official, professional service providers and the increasing number of volunteers throughout Chinese society.
When Beijing Chose Seoul over Pyongyang: China–South Korea Diplomatic Normalization Revisited
Authors: Son Daekwon 
Published: May 2023

AbstractOn 24 August 1992, China finally normalized its diplomatic relations with South Korea, notwithstanding North Korea's protestations. What made Beijing jettison its traditional friendship with Pyongyang and recognize Seoul? What did China want from Sino-South Korea normalization? By extensively unearthing hitherto unknown archival evidence, this paper argues that it was China's security concern about being besieged by pro-Soviet powers, rather than an ideological affinity with North Korea, that delayed Sino-South Korea rapprochement. In the same vein, the study posits that it was the gradual Sino-Soviet reconciliation from 1985 onwards that enabled Beijing to reconcile with Seoul. Furthermore, it argues that in the face of the sudden dissolution of the Eastern bloc and the collapse of the Soviet Union, Beijing hastily sought to secure a cordon sanitaire and foreclose the possibility of the formation of a US–Japan–South Korea anti-China united front by normalizing relations with Seoul.
China's Livestreaming Local Officials: An Experiment in Popular Digital Communications
Authors: Sullivan Jonathan , Zhao Yupei , Wang Weixiang 
Published: May 2023

AbstractIn 2020, hundreds of sub-national government officials and Chinese Communist Party cadres undertook a months-long experiment in livestreaming and social commerce. These sectors are among the most dynamic in the Chinese internet economy and culture, yet Chinese officials have generally resisted engaging with popular and celebrity cultures, even as institutions have begun to expand and modernize their digital operations. Why, then, did a substantial cohort of local officials undertake this experiment? The proximate reason was that they wanted to help local producers hit by the pandemic and to meet their own pending poverty alleviation targets. However, the significance of the case is broader, reflecting the central state and Party's revised thinking on political communications in an era of internet celebrity and self-media and the propensity for local officials to innovate and experiment in the field of digital and popular communication. Investigating empirically how and how effectively livestreaming was employed at the local level helps us to illuminate these dynamics. To facilitate the study, we investigated how officials understood and performed internet celebrity through in-person semi-structured interviews and a three-month virtual ethnographic study.
Adaptive digital predistortion based on Feedback–Wiener Model for aeronautical applications
Authors: Bouazza Tayeb H. C. , Bachir Smail , Pastore Matthieu , Duvanaud Claude 
Published: May 2023

AbstractIn this work, a new adaptive digital predistorter (DPD) is proposed to linearize radio frequency power amplifiers (PA). The DPD structure is composed of two sub-models. A Feedback–Wiener sub-model, describing the main inverse nonlinearities of the PA, combined with a second sub-model based on a memory polynomial (MP) model. The interest of this structure is that only the MP model is identified in real time to compensate deviations from the initial behavior and thus further improve the linearization. The identification architecture combines offline measurement and online parameter estimation with small number of coefficients in the MP sub-model to track the changes in the PA characteristics. The proposed structure is used to linearize a class AB 75 W PA, designed by Telerad society for aeronautical communications in Ultra High Frequency (UHF) / Very High Frequency (VHF) bands. The obtained results, in terms of identification of optimal DPD and the performances of the digital processing, show a good trade-off between linearization performances and computational complexity.
Tabuthema Migräne
Authors: Kubat Heike 
Published: May 2023

Was ist zu diesem Thema bekannt? Die Migräne, eine primäre Kopfschmerzform, ist eine äußerst beeinträchtigende neurobiologische Erkrankung. Wie wird eine neue Perspektive eingebracht? Der Fokus liegt auf der Diagnosefindung einer Migräneerkrankung im Zusammenhang mit psychiatrischen Komorbiditäten. Was sind die Auswirkungen auf die Praxis? Den diagnostischen Kriterien der Migräne sollte im Kontext der psychiatrischen Pflege vermehrt Beachtung geschenkt werden. Eine gut behandelte Migräne kann die psychiatrische Problematik reduzieren und vice versa.
Salt‐Fingering Under the Thermal‐Wind and Lateral Shears in the Kuroshio Fronts
Authors: Kimura Satoshi , Inoue Ryuichiro , Itoh Sachihiko , Nagai Takeyoshi 
Published: May 2023

AbstractWe apply a linear normal mode stability analysis to identify instability in fronts stable to symmetric instability (SI). SI stable fronts appear in many of our observations in the Kuroshio current. These fronts consist of strong horizontal and vertical temperature and salinity gradients. Our stability analysis considers salt‐fingering instability in the presence of thermal‐wind and lateral shears along the isopycnal, which we term “geostrophic shear salt fingering (GSF).” When GSF grows faster than SI, the energy source is in the geostrophic and lateral shears, similar to SI. The results of the linear stability analysis are applied to evaluate temperature and salinity observations on the east coast of Japan in the Kuroshio current. The majority of our data do not support the growth of SI, as the measurements were taken in the fall when the fronts were stratified. Instead, our data indicate a preference for GSF growth. The total perturbation growth in GSF is determined by the source and sink terms in the scalar variance dissipation rates. The thermal and saline covariance dissipation rate (codissipation rate) serves as the primary energy source, while the thermal and saline variance dissipation rates function as the energy sink. This suggests that the presence of the GSF is detectable in microstructure measurements as patches of high thermal variance dissipation rate along the isopycnal slope at fronts in the absence of SI.
A Dimensionless Parameter for Predicting Convective Self‐Aggregation Onset in a Stochastic Reaction‐Diffusion Model of Tropical Radiative‐Convective Equilibrium
Authors: Biagioli Giovanni , Tompkins Adrian Mark 
Published: May 2023

AbstractWe introduce a minimal stochastic lattice model for the column relative humidity (R) in the tropics, which incorporates convective moistening, horizontal transport and subsidence drying. The probability of convection occurring in a location increases withR, based on Tropical Rainfall Measuring Mission observations, providing a positive feedback that could lead to aggregation. We show that the simple model reproduces many aspects of full‐physics cloud resolving model experiments. Depending on model parameter settings and domain size and resolution choices, it can produce both random and aggregated equilibrium states. Clustering occurs more readily with larger domains and coarser resolutions, in agreement with full‐physics models. Using dimensional arguments and fits from empirical data, we derive a dimensionless parameter which we call the aggregation number,Nag, that predicts whether a specific model and experiment setup will result in an aggregated or random state. The parameter includes the moistening feedback strength, the horizontal moisture transport efficiency, the subsidence timescale, the domain size and spatial resolution. Using large ensembles of experiments, we show that the transition between random and aggregated states occurs at a critical value ofNag. We argue thatNagcould help to understand the differences in aggregation states between full‐physics, cloud resolving models, which show little consensus about the robustness of self‐organized patterns, whose emergence appears to be sensitive to the model setup, physics and parameterizations.
Synthesis of Satellite and Surface Measurements, Model Results, and FRAPPÉ Study Findings to Assess the Impacts of Oil and Gas Emissions Reductions on Maximum Ozone in the Denver Metro and Northern Front Range Region in Colorado
Authors: Reddy Patrick J. 
Published: May 2023

AbstractThe Denver Metro/Northern Front Range area has been designated a severe nonattainment area (NAA) for O3. Previous research associated with the 2014 Front Range Air Pollution and Photochemistry Éxperiment field campaign and a 2017 O3 source apportionment modeling analysis point to north‐south gradients in oil and gas (O&G) impacts on O3, with greater contributions to the north and a dominance of mobile sources to the south. Recent analysis of Atmospheric Infrared Sounder satellite methane enhancement and ethane trends in the area show ∼50% and ∼70% reductions in methane and ethane, respectively, from 2013 to 2020. These are consistent with reductions in O&G volatile organic compound (VOC) emissions estimated in the most recent O3 State Implementation Plan but inconsistent with a timeline of top‐down methane flux estimates for limited periods from 2012 to 2021. Reductions in annual fourth maximum eight‐hour O3 concentrations from 2012 to 2019 are 5 ppb greater at Fort Collins West (FTCW) to the north than at Chatfield Reservoir to the south. Bayesian correlation analyses and partial correlations between FTCW O3 and ethane conditioned for tropospheric NO2 from the Aura satellite Ozone Monitoring Instrument suggest that most of the 9‐ppb reduction here is due to declines in O&G emissions, and 9 ppb is comparable to estimated O&G VOC contributions on high‐concentration days in the northern portion of the study area. The gradient in trends suggests that significant O&G emissions reductions have benefited locations in the central and northern portions of the NAA.
Case Investigation on the Influence of In‐Snow Particles' Size and Composition on the Snow Light Absorption and Albedo
Authors: Wang Xin , Zhang Chunyu , Shi Tenglong , Zhang Daizhou , Zhao Pusheng , Zhao Peng 
Published: May 2023

AbstractThe snow physical parameters are closely related to the sizes, shapes, and chemical composition of light‐absorbing particles (LAPs). By utilizing a computer‐controlled scanning electron microscope software called IntelliSEM‐EPASTM, we first report the measured size‐resolved concentration of soot, dust, and fly ash particles in fresh (wet) and aged (dry deposition) snow samples collected at an industrial city in China during and after a snowfall at intervals of 6–8 days. Due to wet scavenging by seasonal snow, soot and dust particles in snow are absorbed by 69.7% and 30.3% at wavelengths of 550 nm, lowering snow albedo by 0.0089 and 0.0039, respectively. Soot particle size increases slightly during dry deposition, whereas size‐resolved mineral dust does not undergo a significant shift in particle size. These results indicate the essentiality to involve the effects of accurate size and composition of in‐snow LAPs for a better assessment of snow light absorption and reflectance.
IgE-binding monocytes upregulate the coagulation cascade in allergic horses
Authors: Simonin Elisabeth M. , Wagner Bettina 
Published: May 2023

AbstractIgE-binding monocytes are a rare peripheral immune cell type involved in the allergic response through binding of IgE on their surface. IgE-binding monocytes are present in both healthy and allergic individuals. We performed RNA sequencing to ask how the function of IgE-binding monocytes differs in the context of allergy. Using a large animal model of allergy, equineCulicoideshypersensitivity, we compared the transcriptome of IgE-binding monocytes in allergic and non-allergic horses at two seasonal timepoints: (i) when allergic animals were clinical healthy, in the winter “Remission Phase”, and (ii) during chronic disease, in the summer “Clinical Phase”. Most transcriptional differences between allergic and non-allergic horses occurred only during the “Remission Phase”, suggesting principal differences in monocyte function even in the absence of allergen exposure.F13A1, a subunit of fibrinoligase, was significantly upregulated at both timepoints in allergic horses. This suggested a role for increased fibrin deposition in the coagulation cascade to promote allergic inflammation. IgE-binding monocytes also downregulatedCCR10expression in allergic horses during the “Clinical Phase”, suggesting a defect in maintenance of skin homeostasis, which further promotes allergic inflammation. Together, this transcriptional analysis provides valuable clues into the mechanisms used by IgE-binding monocytes in allergic individuals.
Projected landscape-scale repercussions of global action for climate and biodiversity protection
Authors: von Jeetze Patrick José , Weindl Isabelle , Johnson Justin Andrew , Borrelli Pasquale , Panagos Panos , Molina Bacca Edna J. , Karstens Kristine , Humpenöder Florian , Dietrich Jan Philipp , Minoli Sara , Müller Christoph , Lotze-Campen Hermann , Popp Alexander 
Published: May 2023

AbstractLand conservation and increased carbon uptake on land are fundamental to achieving the ambitious targets of the climate and biodiversity conventions. Yet, it remains largely unknown how such ambitions, along with an increasing demand for agricultural products, could drive landscape-scale changes and affect other key regulating nature’s contributions to people (NCP) that sustain land productivity outside conservation priority areas. By using an integrated, globally consistent modelling approach, we show that ambitious carbon-focused land restoration action and the enlargement of protected areas alone may be insufficient to reverse negative trends in landscape heterogeneity, pollination supply, and soil loss. However, we also find that these actions could be combined with dedicated interventions that support critical NCP and biodiversity conservation outside of protected areas. In particular, our models indicate that conserving at least 20% semi-natural habitat within farmed landscapes could primarily be achieved by spatially relocating cropland outside conservation priority areas, without additional carbon losses from land-use change, primary land conversion or reductions in agricultural productivity.
Two-colour dissipative solitons and breathers in microresonator second-harmonic generation
Authors: Lu Juanjuan , Puzyrev Danila N. , Pankratov Vladislav V. , Skryabin Dmitry V. , Yang Fengyan , Gong Zheng , Surya Joshua B. , Tang Hong X. 
Published: May 2023

AbstractFrequency conversion of dissipative solitons associated with the generation of broadband optical frequency combs having a tooth spacing of hundreds of giga-hertz is a topical challenge holding the key to practical applications in precision spectroscopy and data processing. The work in this direction is underpinned by fundamental problems in nonlinear and quantum optics. Here, we present the dissipative two-colour bright-bright and dark-dark solitons in a quasi-phase-matched microresonator pumped for the second-harmonic generation in the near-infrared spectral range. We also found the breather states associated with the pulse front motion and collisions. The soliton regime is found to be typical in slightly phase-mismatched resonators, while the phase-matched ones reveal broader but incoherent spectra and higher-order harmonic generation. Soliton and breather effects reported here exist for the negative tilt of the resonance line, which is possible only via the dominant contribution of second-order nonlinearity.