bluuebunny/crossref_metadata_2025_split huggingface dataset:
The impact of the COVID-19 pandemic on individuals with pre-existing diabetes mellitus
Authors: Farrell A. , Srikumar K. , Farmer G. , Liew A. , Hallahan B. 
Published: September 2024

Abstract

Objectives:
To examine the psychosocial impact of the COVID-19 pandemic on patients with a diagnosis of diabetes mellitus (DM).

Methods:
Semi-structured interviews were conducted with 31 individuals with DM attending a diabetes clinic to determine the impact of the COVID-19 restrictions on anxiety and depressive symptoms, social and occupational functioning and quality of life. Anxiety symptoms were correlated with functioning, quality of life and diabetes self-management.

Results:
Likert data demonstrated that social functioning (mean = 5.5, SD = 3.7) and quality of life (mean = 4.1, SD = 3.1) were most impacted by the COVID-19 pandemic. Anxiety symptoms were prevalent with 13 individuals (41.9%) scoring above cut-off scores for the presence of anxiety symptoms based on the Beck Anxiety Inventory. Diabetes self-management was significantly correlated with functioning (r = 0.51, p = 0.006) and inversely correlated with anxiety symptoms (r = −0.51, p = 0.007). A prior history of a depressive or anxiety disorder was associated with significantly increased anxiety symptoms, as well as impaired global functioning (p < 0.01), poorer self-care of diabetes (p = 0.014) and satisfaction with diabetes treatment (p = 0.03).

Conclusions:
The psychological and social impact of COVID-19 restrictions on individuals with DM was significant, with poorer management of diabetes correlated with anxiety symptom severity.
Searching for Traces of the Shi in Tombs of the Jin Dynasty
Authors: Hsu Ya-hwei 
Published: September 2024

AbstractScholars of Jin history have noted a flourishing literati culture after the mid-Jin period, but excavated tombs suggest a more complicated picture. The shi, referring to literati without official titles, constituted a prominent group in Northern Song tombs, as evidenced by their epitaphs, but this group appears to have nearly vanished from the Jin tombs. To search for traces of the shi, this article comprehensively examines the social elites’ tombs with burial inscriptions and ink writings, where the shi would most likely be laid to rest. It shows that the text and paratext of epitaphs, as well as the tombs that yielded them, contain direct information about the shi and their interactions with other officials and non-official elites. Analysis of ink writings suggests that the shi played a role in the advanced literary expression in the tombs of some non-literati local elites. Examining these traces of the shi in tombs allows us to reintegrate them into broader society, investigate their interactions with other elites, and attain a more holistic understanding of Jin elite society and culture.
Efficiency of reversible MCMC methods: elementary derivations and applications to composite methods
Authors: Neal Radford M. , Rosenthal Jeffrey S. 
Published: September 2024

AbstractWe review criteria for comparing the efficiency of Markov chain Monte Carlo (MCMC) methods with respect to the asymptotic variance of estimates of expectations of functions of state, and show how such criteria can justify ways of combining improvements to MCMC methods. We say that a chain on a finite state space with transition matrix P efficiency-dominates one with transition matrix Q if for every function of state it has lower (or equal) asymptotic variance. We give elementary proofs of some previous results regarding efficiency dominance, leading to a self-contained demonstration that a reversible chain with transition matrix P efficiency-dominates a reversible chain with transition matrix Q if and only if none of the eigenvalues of
$Q-P$
are negative. This allows us to conclude that modifying a reversible MCMC method to improve its efficiency will also improve the efficiency of a method that randomly chooses either this or some other reversible method, and to conclude that improving the efficiency of a reversible update for one component of state (as in Gibbs sampling) will improve the overall efficiency of a reversible method that combines this and other updates. It also explains how antithetic MCMC can be more efficient than independent and identically distributed sampling. We also establish conditions that can guarantee that a method is not efficiency-dominated by any other method.
Combined AMS 14C and archaeological dating of the Rouran period cemetery of Choburak-I (Northern Altai)
Authors: Seregin N N , Svyatko S V , Barrett G , Matrenin S S , Reimer P J 
Published: September 2024

AbstractThis paper presents a detailed chronological study of the previously undisturbed burial ground of Choburak-I of the Bulan-Koby Culture in the Northern Altai using a program of comprehensive dating, including AMS 14C dating of human and animal remains (26 14C dates from 12 kurgans in total), and archaeological dating of the associated artifacts. This completely excavated cemetery contained numerous grave goods and various organic remains (anthropological and archaeozoological) critical for understanding the social and chronological dynamics of this culture during the Rouran period in Altai (second half of the 4th–first half of the 6th century CE). The results of archaeological dating, supported by the largest set of AMS 14C dates for the Bulan-Koby Culture, and further aided by Bayesian analysis, demonstrate the likely continuous existence of the necropolis within the period of 310–400 cal CE, which broadly corresponds to the beginning of the Rouran period in the history of Altai, with a maximum duration of 66 years. The presented results make it possible to consider the necropolis of Choburak-I as a chronologically defining monument of the Rouran period of Northern Altai and permit a new level of relative and absolute chronological reconstructions for archaeological sites of this region and adjacent territories at the turn of late antiquity and the early Middle Ages.
EARLY GREEK MYTHOGRAPHY AND EPIC POETRY: A REASSESSMENT
Authors: Pàmias Jordi 
Published: September 2024

AbstractStudies of early mythography have stressed the dependent relationship between the so-called logographers and epic archaic poetry. Better knowledge of archaic and classical mythography in recent years has provided more accurate details of the context of the production and purposes of the fragmentary works by Hecataeus, Acusilaus, Pherecydes and Hellanicus. Each of them has his own agenda and programme, which have to be explained within their context and not, from a purely historic-literary perspective, as an appendix, a continuation or an exegesis of the epic tradition. This article argues that conditions of preservation, and means of transmission, of fragmentary mythographers have shaped the way we approach them. In other words, the process of reception of epic poetry through the exegetic and grammarian tradition distorts our view and leads the modern reader to see mythography as being dependent on Homer or Hesiod.
MORE AND LESS EVIDENCE FOR THE TEXT OF JULIUS EXUPERANTIUS
Authors: Welsh Jarrett T. 
Published: September 2024

AbstractThis paper examines a neglected fifteenth-century manuscript of the opusculum of Julius Exuperantius. It argues that that manuscript (Bologna, Biblioteca Universitaria, 748) is a sibling of Vatican City, BAV, Vat. lat. 3334, and situates the new manuscript in the stemma established by the last editor. It then proposes a modification to that editor's stemma, arguing that those two fifteenth-century manuscripts in fact descend from Milan, BA, H 37 sup., once owned by Francesco Pizolpasso. Finally, it considers the implications of those arguments for the editing and the history of the text.
Experiencing Exclusion: Scholarship after Inquisition
Authors: Davis Natalie Zemon , Hanß Stefan 
Published: September 2024

AbstractIn 1952, while working on my Ph.D. at the University of Michigan, two men from the Department of State came to our apartment and picked up my passport and that of my husband, Chandler Davis. In 1962, Chandler was finally allowed to immigrate to Canada with his family and take up a professorship at the University of Toronto. The ten years in between were packed with politics: Chandler’s refusal to answer questions before the House Un-American Activities Committee (HUAC); his firing from the University of Michigan; his court case challenging HUAC; his six months’ prison term for contempt of Congress; and throughout, his inability to get a tenure-track appointment at any American university. I myself was not called to confess my political views or memberships but investigations against Chandler were based on the publication of Operation mind – a pamphlet which I had co-authored together with Elizabeth Douvan and which is presented here. I was without a passport and not part of a university community for years. This article reflects on the impact of this experience of persecution on my work as a historian, and the relationship between politics, activism, and what Marc Bloch and Lucien Febvre called ‘the historian’s craft’ and ‘consciousness’.
The Hidden Labour of Digital Capitalism: Changes, Continuities, Critical Issues
Authors: Pizzolato Nico 
Published: September 2024

AbstractRapid technological development means that the ground on which recent academic studies and public debates about the future of work organisation are based is shifting too rapidly for predictions to be credible. Organisational studies scholars have provided a counterpoint to this futuristic, speculative debate about the world of tomorrow with studies that contextualise seemingly new trends within a longer history of industrial capitalism. In this article, using Moritz Altenried's The Digital Factory (2022) as a starting point, I further explore the historical contextualisation of two aspects of platform capitalism: its de-spatialisation and its use of “autonomy”.
Mapping the Social Relations of Labor in Contemporary Algorithmic Society
Authors: Downey Greg 
Published: September 2024

AbstractMoritz Altenried's The Digital Factory (2022) accomplishes in just under two hundred pages what many other books twice that length have struggled with: assembling a concise yet readable introductory map to the global, fragmented, and too-often hidden landscape of digitally-mediated capitalism. But the digital factory itself is an incomplete concept, almost always requiring us to look for the external and contingent labor support hidden just outside of its supposedly totalizing network of logistics, robotics and algorithms.
Introduction to the Review Dossier on The Digital Factory: Continuing a Long-Standing Debate
Authors: Akgöz Görkem , Blok Aad 
Published: September 2024

AbstractTheories about the impact of digital technology on society and the development of capitalism and debates about the influence of digital information technologies on the future of work have been abundant since the end of the twentieth century. Most of the academic debate has taken place outside labour history, leaving the actual effects of digital technologies on human work and labour relations often overlooked. Moritz Altenried's The Digital Factory: The Human Labor of Automation focuses precisely on these effects, and as such provides a good opportunity to engage with these debates from a labour history perspective. This Review Dossier includes four comments on Altenried's book, by Bridget Kenny, Nico Pizzolato, Görkem Akgöz, and Greg Downey, to which the author responds. The contributors focus on different aspects of The Digital Factory depending on their own perspective on recent developments in the digital economy in the larger context of global capitalism.
Disciplining Citizens and Commodities: Economic Crimes and Accusations in 1970s Uganda
Authors: Donovan Kevin P. 
Published: September 2024

AbstractIn 1975, the Ugandan state established an Economic Crimes Tribunal to investigate and penalize smuggling, hoarding, overcharging, and other commercial malfeasance. In the coming years, innumerable Ugandans were arrested and charged with contravening the state's economic regulations. Prior observers have seen this as another instance of a capricious state, but in this article, I demonstrate the popular investment in economic regulation. Ugandans demanded better stewardship of money and things because they were aghast at the ungovernable world of commodities. For one thing, the inaccessibility of so-called “essential commodities” — sugar and salt, preeminently — impeded ethical expectations surrounding social reproduction, hospitality, and masculine respectability. More troubling, essential commodities were not completely unavailable; rather, they were available on exclusionary and confusing terms. Relative deprivation was more upsetting than absolute scarcity because it offended a sense of consumptive entitlement. As a result, it was not only the state that accused citizens of economic crimes. There were widespread accusations in which allegation and denunciation circulated among neighbors, families, and bureaucrats in an urgent effort to discipline commodities and people.
A foreign settler: the anthropogenic displacement of sea cucumbers through fisheries discards
Authors: Castro Nuno , Romão Filipe , Félix Pedro M. 
Published: September 2024

Abstract
This study describes the presence of the royal cucumber Parastichopus regalis (Cuvier, 1817) in The Natural Park of Ria Formosa (NPRF), Portugal. A single individual was observed during a monitoring scuba dive at a depth of 3 m inside this shallow mesotidal lagoon. The most plausible explanation for this occurrence is attributed to the rejection by trawlers when returning to their home port from their fishing grounds. This marine species has a deeper distribution outside the lagoon and is commonly captured as by-catch and subsequently discarded. This study also alerts us to the growing presence of non-indigenous species and the emergent threat of new invasions, highlighting the need to adopt biosecurity measures, like good practices for fishers when dealing with discards to avoid new species introductions in this fragile coastal marine habitat.
Design of a traction neck brace with two degrees-of-freedom via a novel architecture of a spatial parallel mechanism
Authors: Zhou Jingzong , Kulkarni Priya , Zhao Xincheng , Agrawal Sunil K. 
Published: September 2024

Abstract
Traction of the head-neck is important in the treatment of patients suffering from neck pain due to degeneration of the intervertebral discs. Conventional neck traction is provided manually by experienced physical therapists who maintain a desired orientation of the head-neck relative to the trunk while applying the traction. It is postulated that innovative designs of neck exoskeletons can provide the same function both flexibly and accurately. This article presents a novel architecture of a parallel mechanism whose base sits on the human shoulders with 4 parallel chains, each chain having a revolute-revolute-universal-revolute (RRUR) structure, while the end-effector is connected rigidly to the human head. Each chain has five degrees-of-freedom (DOF) and applies a constraint on the motion of the end-effector. As a result, this parallel mechanism allows two DOFs to the end-effector. These are (i) forward flexion or lateral bending of the head and (ii) vertical translation. An important motivation for the current design with RRUR structure is to characterize the range of forward flexion/lateral bending of the head-neck with this structure and the vertical translation to the end-effector. A physical prototype was constructed and tested to evaluate the performance of this mechanism in hardware for the proposed application.
Prediction of abnormal gait behavior of lower limbs based on depth vision
Authors: Liu Tie , Bai Dianchun , Yi Hongyu , Yokoi Hiroshi 
Published: September 2024

Abstract
As a kind of lower-limb motor assistance device, the intelligent walking aid robot plays an essential role in helping people with lower-limb diseases to carry out rehabilitation walking training. In order to enhance the safety performance of the lower-limb walking aid robot, this study proposes a deep vision-based abnormal lower-limb gait prediction model construction method for the problem of abnormal gait prediction of patients’ lower limbs. The point cloud depth vision technique is used to acquire lower-limb motion data, and a multi-posture angular prediction model is trained using long and short-term memory networks to build a model of the user’s lower-limb posture characteristics during normal walking as well as a real-time lower-limb motion prediction model. The experimental results indicate that the proposed lower-limb abnormal behavior prediction model is able to achieve a 97.4% prediction rate of abnormal lower-limb movements within 150 ms. Additionally, the model demonstrates strong generalization ability in practical applications. This paper proposes further ideas to enhance the safety performance of lower-limb rehabilitation robot use for patients with lower-limb disabilities.
RGB-D visual odometry by constructing and matching features at superpixel level
Authors: Yang Meiyi , Xiong Junlin , Li Youfu 
Published: September 2024

AbstractVisual odometry (VO) is a key technology for estimating camera motion from captured images. In this paper, we propose a novel RGB-D visual odometry by constructing and matching features at the superpixel level that represents better adaptability in different environments than state-of-the-art solutions. Superpixels are content-sensitive and perform well in information aggregation. They could thus characterize the complexity of the environment. Firstly, we designed the superpixel-based feature SegPatch and its corresponding 3D representation MapPatch. By using the neighboring information, SegPatch robustly represents its distinctiveness in various environments with different texture densities. Due to the inclusion of depth measurement, the MapPatch constructs the scene structurally. Then, the distance between SegPatches is defined to characterize the regional similarity. We use the graph search method in scale space for searching and matching. As a result, the accuracy and efficiency of matching process are improved. Additionally, we minimize the reprojection error between the matched SegPatches and estimate camera poses through all these correspondences. Our proposed VO is evaluated on the TUM dataset both quantitatively and qualitatively, showing good balance to adapt to the environment under different realistic conditions.
Obstacle avoidance control of UGV based on adaptive-dynamic control barrier function in unstructured terrain
Authors: Guo Liang , Zhang Suyu , Zhao Wenlong , Liu Jun , Liu Ruijun 
Published: September 2024

AbstractThe widely used model predictive control of discrete-time control barrier functions (MPC-CBF) has difficulties in obstacle avoidance for unmanned ground vehicles (UGVs) in complex terrain. To address this problem, we propose adaptive dynamic control barrier functions (AD-CBF). AD-CBF is able to adaptively select an extended class of functions of CBF to optimize the feasibility and flexibility of obstacle avoidance behaviors based on the relative positions of the UGV and the obstacle, which in turn improves the obstacle avoidance speed and safety of the MPC algorithm when integrated with MPC. The algorithmic constraints of the CBF employ hierarchical density-based spatial clustering of applications with noise (HDBSCAN) for parameterization of dynamic obstacle information and unscaled Kalman filter (UKF) for trajectory prediction. Through simulations and practical experiments, we demonstrate the effectiveness of the AD-CBF-MPC algorithm in planning optimal obstacle avoidance paths in dynamic environments, overcoming the limitations of the point-by-point feasibility of MPC-CBF.
Kinematic analysis and advanced control of a vectored thruster based on 3RRUR parallel manipulator for micro-size AUVs
Authors: Liu Tao , Zhao Jintao , Huang Junhao 
Published: September 2024

AbstractAutonomous underwater vehicles (AUVs) have played a pivotal role in advancing ocean exploration and exploitation. However, traditional AUVs face limitations when executing missions at minimal or near-zero forward velocities due to the ineffectiveness of their control surfaces, considerably constraining their potential applications. To address this challenge, this paper introduces an innovative vectored thruster system based on a 3RRUR parallel manipulator tailored for micro-sized AUVs. The incorporation of a vectored thruster enhances the performance of micro-sized AUVs when operating at minimal and low forward speeds. A comprehensive exploration of the kinematics of the thrust-vectoring mechanism has been undertaken through theoretical analysis and experimental validation. The findings from theoretical analysis and experimental confirmation unequivocally affirm the feasibility of the devised thrust-vectoring mechanism. The precise control of the vector device is studied using Physics-informed Neural Network and Model Predictive Control (PINN-MPC). Through the adoption of this pioneering thrust-vectoring mechanism rooted in the 3RRUR parallel manipulator, AUVs can efficiently and effectively generate the requisite motion for thrust-vectoring propulsion, overcoming the limitations of traditional AUVs and expanding their potential applications across various domains.
Type synthesis of a new parallel mechanism with complete separation of constraints and drives
Authors: Wang Yu , Qiu Can , He Xiaoyu , Wu Jiabin , Xu Yundou , Zhao Yongsheng 
Published: September 2024

AbstractCurrently, there is an increasing demand for parallel mechanisms with fewer inputs and more outputs in aerospace, antennas, and recreational facilities. Therefore, this paper proposes a new parallel mechanism (PM) with a separation of constraints and drives, facilitating centralized drive management. Based on screw theory, the type synthesis of new parallel mechanisms with 3T (T representing translation), 3R (R representing revolute), 2T1R, and 2R1T is proposed. Three-degree-of-freedom (3-DOF) parallel mechanisms with fewer inputs and multiple outputs are proposed. Taking the 3RPS-PPPS parallel mechanism as an example, the closed-loop vector method is employed to solve for the lengths of actuated branches. A complete Jacobi matrix is constructed. The motion/force transmission performance of the 3RRS/PPPS parallel mechanism is better than the 3RRS parallel mechanism. Centralized management of drive branches greatly reduces the number of drives, making maintenance and repair easier. It has many application scenarios in antennas, recreational facilities, and other occasions.
A new formula for the determinant and bounds on its tensor and Waring ranks
Authors: Houston Robin , Goucher Adam P. , Johnston Nathaniel 
Published: September 2024

AbstractWe present a new explicit formula for the determinant that contains superexponentially fewer terms than the usual Leibniz formula. As an immediate corollary of our formula, we show that the tensor rank of the
$n \times n$
determinant tensor is no larger than the
$n$
-th Bell number, which is much smaller than the previously best-known upper bounds when
$n \geq 4$
. Over fields of non-zero characteristic we obtain even tighter upper bounds, and we also slightly improve the known lower bounds. In particular, we show that the
$4 \times 4$
determinant over
${\mathbb{F}}_2$
has tensor rank exactly equal to
$12$
. Our results also improve upon the best-known upper bound for the Waring rank of the determinant when
$n \geq 17$
, and lead to a new family of axis-aligned polytopes that tile
${\mathbb{R}}^n$
.