bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flight Dynamics Modeling with Multi-Model Estimation Techniques: A Consolidated Framework
Authors: Fatima Syed Kounpal , Abbas Syed Manzar , Mir Imran , Gul Faiza , Forestiero Agostino 
Published: February 2023

AbstractIn modern era of aviation technology evolution, unmanned aerial vehicles have proved to be crucial in all fields including military and research. The development of robust control system and successful mission accomplishment requires an meticulous UAV model. The aim of this paper is to lay out an elaborate model estimation scheme using various model structure techniques including Auto-regressive Exogenous, Auto-regressive Moving Average exogenous, Box Jenkin’s, Output Error, and state space and non-linear Auto-regressive Exogenous. The obtained models are then analyzed and compared for best model quality parameters like residual analysis, final prediction error and fit percentages. The efficacy of developed model through proposed model is further validated using simulations data for UAV. Results demonstrate the model’s feasibility as it properly predicts system performance over a broad variety of operating situations. To the best of our knowledge, this is the first time in the literature that a model estimation study for UAV platform with such a wide variety of model structures has been presented.
20α-Hydroxysteroid Dehydrogenase Expression in the Human Myometrium at Term and Preterm Birth: Relationships to Fetal Sex and Maternal Body Mass Index
Authors: Paul Marina , Zakar Tamas , Phung Jason , Gregson Amy , Barreda Anna Paredes , Butler Trent A. , Walker Frederick R. , Pennell Craig , Smith Roger , Paul Jonathan W. 
Published: February 2023

AbstractThe mechanism by which human labor is initiated in the presence of elevated circulating progesterone levels remains unknown. Recent evidence indicates that the progesterone-metabolizing enzyme, 20α-hydroxysteroid dehydrogenase (20α-HSD), encoded by the gene AKR1C1, may contribute to functional progesterone withdrawal. We found that AKR1C1 expression significantly increased with labor onset in term myometrium, but not in preterm myometrium. Among preterm laboring deliveries, clinically diagnosed chorioamnionitis was associated with significantly elevated AKR1C1 expression. AKR1C1 expression positively correlated with BMI before labor and negatively correlated with BMI during labor. Analysis by fetal sex showed that AKR1C1 expression was significantly higher in women who delivered male babies compared to women who delivered female babies at term, but not preterm. Further, in pregnancies where the fetus was female, AKR1C1 expression positively correlated with the mother’s age and BMI at the time of delivery. In conclusion, the increase in myometrial AKR1C1 expression with term labor is consistent with 20α-HSD playing a role in local progesterone metabolism to promote birth. Interestingly, this role appears to be specific to term pregnancies where the fetus is male. Upregulated AKR1C1 expression in the myometrium at preterm in-labor with clinical chorioamnionitis suggests that increased 20α-HSD activity is a mechanism through which inflammation drives progesterone withdrawal in preterm labor. The link between AKR1C1 expression and maternal BMI may provide insight into why maternal obesity is often associated with dysfunctional labor. Higher myometrial AKR1C1 expression in male pregnancies may indicate fetal sex-related differences in the mechanisms that precipitate labor onset at term.
Biomechanics of the tether breakage: tensile behaviour of a single-unit vertebral body tethering construct
Authors: Guldeniz Ogulcan , Yip Christopher C. H. , Nafo Wanis , Cheung Kenneth M. C. 
Published: February 2023

Abstract
Purpose
Tether breakage was reported as the most common complication of vertebral body tethering. However, as the literature suggests the physiological loads do not have the potential to cause the failure of the tether. Currently, the biomechanical reason behind the tether breakage is unknown. The current study aims to elucidate the effects of the tension forces on the failure mechanisms of the VBT and provide mechanical justification for how it can be identified radiographically.

Methods
Tensile tests (20%/min strain rate) were performed on single-unit VBT samples. Failure modes and mechanical characteristics were reported.

Results
The failure took place prematurely due to the slippage of the tether at the screw–tether junction where the tether is damaged significantly by the locking cap. Slippage was initiated at 10–13% tensile strain level where the tensile stress and tension force were 50.4 ± 1.5 MPa and 582.2 ± 30.8 N, respectively.

Conclusion
The failure occurs because of high-stress concentrations generated within the locking region which damages the tether surface and leads to the slippage of the tether. We observed that the loads leading to failure are within the physiological limits and may indicate the high likelihood of the tether breakage. The failure mode observed in our study is shown to be the dominant failure mode, and a design improvement on the gripping mechanism is suggested to avoid failure at the screw–tether junction. We observed that the tether elongates 10–13% prior to the breakage, which can be employed as a diagnostic criterion to screen for tether breakages radiographically.
Effects of the vaccination against SARS-CoV-2 on infections and on hospitalizations in European countries
Authors: Greiner Alfred , Owusu Benjamin 
Published: February 2023

AbstractSince December 2020 vaccines against the SARS-CoV-2 virus have been available. However, little is known regarding their effects on infections and on hospitalizations. To gain insight into this topic we empirically analyze the effects of the vaccinations against SARS-CoV-2 for European countries beginning 2021 to February 2022 with weekly data. We perform panel fixed effects estimations, GMM estimations and nonlinear penalized spline estimations. We find a statistically significant and positive relationship between the share of infections with the SARS-CoV-2 virus and the share of vaccinated people in nine estimations while one estimation output was insignificant. Regarding hospitalizations, six out of ten estimations yielded a statistically insignificant relationship, and three estimation results were weakly statistically significant with a negative coefficient and one indicated a statistically significant negative relation. Hence, there is empirical evidence for a positive relationship between infections and the share of vaccinated people whereas we find weak empirical evidence for a negative relation between vaccinations and hospitalizations. The implication of our analysis is that vaccinations alone cannot end the pandemic. Rather developing effective medicines should be seen as an additional measure.
TREE THEORY: INTERPRETABILITY BETWEEN WEAK FIRST-ORDER THEORIES OF TREES
Authors: DAMNJANOVIC ZLATAN 
Published: February 2023

AbstractElementary first-order theories of trees allowing at most, exactly
$\mathrm{m}$
, and any finite number of immediate descendants are introduced and proved mutually interpretable among themselves and with Robinson arithmetic, Adjunctive Set Theory with Extensionality and other well-known weak theories of numbers, sets, and strings.
Leading Emerging and Diverse Scientists to Success: Results from LEADS alumni
Authors: Rubio Doris , Norman Marie K. , Mayowski Colleen A. , Proulx Chelsea N. , Karras Alana , Hausmann Leslie ,   LEADS Site Leaders Team
Published: February 2023

Abstract

Purpose:
In 2015, the University of Pittsburgh partnered with several Minority Serving Institutions to develop the Leading Emerging and Diverse Scientists to Success (LEADS) Program. LEADS was designed to provide skills development, mentoring, and networking support to early career underrepresented faculty.

Method:
LEADS included three components: skills training (e.g., grant and manuscript writing and team science), mentoring, and networking opportunities. Scholars completed a pre- and post-test survey and an annual alumni survey that included measures on burnout, motivation, leadership, professionalism, mentoring, job and career satisfaction, networking, and an assessment of their research self-efficacy.

Results:
Scholars demonstrated a significant increase in their research self-efficacy having completed all the modules (t = 6.12; P < 0.001). Collectively, LEADS scholars submitted 73 grants and secured 46 grants for a 63% success rate. Most scholars either agreed or strongly agreed that their mentor was effective in helping to develop their research skills (65%) and provided effective counseling (56%). Scholars did experience increased burnout with 50% feeling burned out at the exit survey (t = 1.42; P = 0.16) and 58% reporting feelings of burnout at the most recent survey in 2020 (t = 3.96; P < 0.001).

Conclusions:
Our findings support the claim that participation in LEADS enhanced critical research skills, provided networking and mentoring opportunities, and contributed to research productivity for scientists from underrepresented backgrounds.
Sharp smoothing properties of averages over curves
Authors: Ko Hyerim , Lee Sanghyuk , Oh Sewook 
Published: February 2023

Abstract
We prove sharp smoothing properties of the averaging operator defined by convolution with a measure on a smooth nondegenerate curve

$\gamma $

in

$\mathbb R^d$

,

$d\ge 3$

. Despite the simple geometric structure of such curves, the sharp smoothing estimates have remained largely unknown except for those in low dimensions. Devising a novel inductive strategy, we obtain the optimal

$L^p$

Sobolev regularity estimates, which settle the conjecture raised by Beltran–Guo–Hickman–Seeger [1]. Besides, we show the sharp local smoothing estimates on a range of p for every

$d\ge 3$

. As a result, we establish, for the first time, nontrivial

$L^p$

boundedness of the maximal average over dilations of

$\gamma $

for

$d\ge 4$

.
Standpoint Theory and the Psy Sciences: Can Marginalization and Critical Engagement Lead to an Epistemic Advantage?
Authors: Friesen Phoebe , Goldstein Jordan 
Published: February 2023

AbstractAs participatory research practices are increasingly taken up in health research, claims related to experiential authority and expertise are frequently made. Here, in an exploration of what grounds such claims, we consider how feminist standpoint theory might apply to the psy sciences (psychiatry, psychology, psychotherapy, psychoanalysis, and so on). Standpoint theory claims that experiences of marginalization and critical engagement can lead to a standpoint that offers an epistemic advantage within a domain of knowledge. We examine experiences of marginalization and critical engagement in the mental health system, as well as evidence for epistemic advantages resulting from these experiences. This evidence, found in the identification of problematic assumptions and the development of new tools and theories in the field, grounds our argument that standpoint theory is indeed relevant to the psy sciences and that many of those who have experienced marginalization and have engaged critically have an epistemic advantage when it comes to knowledge-production. The implications of this argument are significant: those who have attained a standpoint within the psy sciences ought to be included in research and given both tools and funding to develop research programs. However, we must be wary of the risks of tokenization, cooptation, and essentialization that are likely to accompany such a transformation.
Comedic Hermeneutical Injustice
Authors: Butterfield Paul 
Published: February 2023

AbstractThis article posits and explores the concept of comedic hermeneutical injustice: a type of hermeneutical injustice that disadvantages members of marginalized groups in the arena of humor-sharing. First I explain the concept of comedic hermeneutical injustice: that agents who are hermeneutically marginalized are less able to successfully participate in the sharing of humor. Then I suggest that, to prove the existence of such an injustice, two things need to be shown: first, that hermeneutically marginalized groups do suffer some disadvantage in how well their attempts at humor are received, and, second, that this disadvantage amounts to a significant harm.In proving the existence of a comedic disadvantage, this article notes that all jokes require some epistemic content to be shared between joke-teller and joke-hearer. Thus, since being hermeneutically marginalized obstructs one from sharing knowledge with proximate speakers, hermeneutical inequalities can lead to inequalities in the sharing of humor. To show that this constitutes a significant disadvantage, the article observes the various ways that sharing humor successfully can serve agents’ social interests. It concludes by noting some idiosyncrasies of comedic hermeneutical injustice, relative to other forms of epistemic injustice, and situating it within the wider framework of humor's general social-ethical influence.
Back to the future: Redefining “universal precautions” to include masking for all patient encounters
Authors: Kalu Ibukunoluwa C. , Henderson David K. , Weber David J. , Haessler Sarah 
Published: February 2023

AbstractDespite recent guidance from the Centers for Disease Control and Prevention (CDC) allowing institutions to relax in-facility masking strategies and due to our evolving understanding of respiratory pathogen transmission during the coronavirus disease 2019 (COVID-19) pandemic, we propose an updated standard for universal precautions in healthcare settings: permanently including universal masking in routine patient-care interactions. Such a practice prioritizes safety for patients, healthcare providers (HCPs), and visitors.
Does maximum emotional intelligence facilitate team organizational citizenship behaviors: A perspective of integrating strategic core roles and multilevel theory
Authors: Zhang Hui-Hua , Li Rui , Wang Ming-Hui 
Published: February 2023

AbstractThis study examines how maximum emotional intelligence (EI) members can contribute to the emergence of team-level organizational citizenship behaviors (OCB). Based on integrating a strategic core role and multilevel theory, we developed and tested a model in which the maximum EI score in teams results in intrateam trust and consequently impacts team OCB and examined whether the indirect effect of maximum EI on team OCB through intrateam trust would be moderated by EI diversity and trust divergence in teams. The results from 129 project teams showed that the relationship of maximum EI with team OCB is mediated by intrateam trust and this relationship is stronger for lower levels of EI diversity and trust divergence than for higher levels of diversity and divergence. The findings advance our understanding of the role of EI in team settings. Our research has important implications for organizations attempting to develop the applied value of EI.
Thirty-one new records of reef fish species for Hong Kong waters
Authors: Chung Arthur , See Gomen C.L. , Lam S.Y. , Yiu W.H. , Shea Stan K.H. 
Published: February 2023

Abstract
The implementation of consistent and continuous biodiversity survey efforts over a long period of time is imperative to the examination of temporal diversity patterns and the evaluation of existing conservation measures' effectiveness. In Hong Kong, a marine biodiversity hotspot in the South China Sea, reef fish diversity has been poorly documented due to inconsistent and sparse biodiversity surveys, posing considerable challenges to long-term monitoring of biodiversity dynamics. To fill in the data gap, regular scuba underwater visual surveys were conducted across 55 dive sites in Hong Kong during the wet seasons from 2018–2021. After ~3171 hours of underwater survey, 31 reef fish species from 14 families that are new to Hong Kong have been recorded, including species from Acanthuridae, Chaetodontidae, Diodontidae, Gobiidae, Labridae, Mullidae, Nemipteridae, Pinguipedidae, Pomacanthidae, Pomacentridae, Ptereleotridae, Solenostomidae, Tetraodontidae and Tetrarogidae. As Hong Kong sits within the natural distribution range of the newly recorded species, the possibility of artificial release was eliminated after careful consideration. These species were all found outside the currently established Marine Protected Areas (MPAs) in Hong Kong, indicating the need for comprehensive research to identify potential marine reef fish hotspots in areas that are unprotected thus far. Our findings demonstrate the need to establish a long-term monitoring programme that can fill in data gaps of local marine biodiversity to enable the establishment of effective MPAs, and to lay down a baseline for future research and monitoring, so as to safeguard Hong Kong's marine biodiversity in the long term.
Thepfactor of psychopathology and personality in middle childhood: genetic and gestational risk factors
Authors: Gjerde Line C. , Eilertsen Espen Moen , McAdams Tom A. , Cheesman Rosa , Moffitt Terrie E. , Caspi Avshalom , Eley Thalia C. , Røysamb Espen , Rosenström Tom H. , Ystrom Eivind 
Published: February 2023

AbstractBackgroundA joint, hierarchical structure of psychopathology and personality has been reported in adults but should also be investigated at earlier ages, as psychopathology often develops before adulthood. Here, we investigate the joint factor structure of psychopathology and personality in eight-year-old children, estimate factor heritability and explore external validity through associations with established developmental risk factors.MethodsPhenotypic and biometric exploratory factor analyses with bifactor rotation on genetically informative data from the Norwegian Mother, Father, and Child Cohort (MoBa) study. The analytic sub-sample comprised 10 739 children (49% girls). Mothers reported their children's symptoms of depression (Short Moods and Feelings Questionnaire), anxiety (Screen for Anxiety Related Disorders), attention-deficit/hyperactivity disorder inattention and hyperactivity, oppositional-defiant disorder, conduct disorder (Parent/Teacher Rating Scale for Disruptive Behavior Disorders), and Big Five personality (short Hierarchical Personality Inventory for Children). Developmental risk factors (early gestational age and being small for gestational age) were collected from the Medical Birth Registry.ResultsGoodness-of-fit indices favored apfactor model with three residual latent factors interpreted as negative affectivity, positive affectivity, and antagonism, whereas psychometric indices favored a one-factor model. ADE solutions fitted best, and regression analyses indicated a negative association between gestational age and thepfactor, for both the one- and four-factor solutions.ConclusionCorrelations between normative and pathological traits in middle childhood mostly reflect one heritable and psychometrically interpretablepfactor, although optimal fit to data required less interpretable residual latent factors. The association between thepfactor and low gestational age warrants further study of early developmental mechanisms.
Association between obsessive-compulsive disorder and the risk of schizophrenia using the Korean National Health Insurance Service-National Sample Cohort: a retrospective cohort study
Authors: Kim H. , Kim S. H. , Jeong W. , Park Y. S. , Kim J. , Park E. C. , Jang S. I. 
Published: February 2023

Abstract

Aims
Obsessive-compulsive disorder (OCD) and schizophrenia are often reported as co-morbid conditions. However, the evidence of an association between OCD and the risk of schizophrenia is limited. This study investigated the risk of schizophrenia in patients newly diagnosed with OCD using a nationally representative sample cohort in South Korea.

Methods
Data were obtained from the 2002–2013 Korean National Health Insurance Service-National Sample Cohort of the National Health Insurance Service. Using propensity score matching, 2509 patients with OCD and a control group of 7527 patients were included in the analysis. Chi-squared tests were used to investigate and compare the general characteristics of the study population. The risk of schizophrenia was analysed using the Cox proportional hazard model.

Results
The incidence rate was 45.79/10 000 person-year for patients with OCD and 4.19/10 000 person-year for patients without OCD. Patients with OCD had a higher risk of schizophrenia compared to the control group after adjusting for covariates (hazard ratio = 10.46, 95% confidence interval = 6.07–18.00).

Conclusions
This study identified an association between the diagnosis of OCD and the risk of schizophrenia in a South Korean national representative cohort. Further research using a prospective design to clarify the causality of OCD in schizophrenia in a controlled environment should be conducted to validate these findings.
Preaching to the Choir or Proselytizing to the Opposition: Examining the Use of Campaign Websites in State Legislative Elections
Authors: Meyer-Gutbrod Joshua 
Published: February 2023

AbstractThe Internet has spawned a renewed hope for facilitating increased access to candidate information for voters. However, the nationalization and polarization of constituents have left many candidates averse to the risks of personalized campaigns, especially in subnational elections. Under what conditions are state candidates willing to establish a personalized web presence as opposed to relying on partisanship? This study introduces a novel dataset of campaign website presence for the 2018 and 2020 state legislative elections. During this time, approximately one-third of state legislative candidates opted to forgo a personalized campaign website. District-level constituent ideology was significantly correlated with the website use, even when controlling for district education, income, age, and race, and the candidate’s competitive position. District ideological homogeneity encouraged website use across both parties, while adversarial district ideology corresponded to low website use among Republicans. The results indicate that state legislative candidates, especially Republican candidates, are far more likely to preach to their partisan choir rather than incur the risks of proselytizing among their partisan opposition. The results reiterate the divergent responses of the political parties regarding partisan polarization and shed light on the impact of nationalization within state legislative campaigns.
Upper Cretaceous–Paleocene Magnetostratigraphy of the Longmenshan Foreland Basin and Its Implications for the Tectonic Deformation of the Longmenshan Fault Zone
Authors: Hou Lifu , Pei Junling , Cai Yuhang , Zhou Zaizheng , Tong Yabo , Zhao Yue 
Published: February 2023

AbstractKnowledge of the history of the tectonic deformation of the eastern edge of Tibet is important for understanding the evolution of the entire Tibetan Plateau; however, the corresponding tectonic deformation process remains controversial. We conducted a detailed rock magnetic and magnetostratigraphic study of the Cretaceous Jiaguan and Guankou Formations (the Jinmenguan section) within the Longmenshan foreland basin on the eastern edge of Tibetan Plateau. The high‐temperature remanence components separated after thermal demagnetization passed the A‐class reversal test, Bootstrap Cartesian coordinate test, and fold test, at the 95% confidence level. The resulting magnetostratigraphy constrains the age range of the Jinmenguan section to 128.0–64.1 Ma, and that of the Jiaguan Formation to 128.0–83.6 Ma. The resulting chronology identifies two phases of rapid sedimentation (128.0–124.1, 68.8–64.1 Ma) that constrain two phases of tectonic uplift in the Longmenshan Fault Zone on the eastern margin of Tibet during the Cretaceous–early Cenozoic. Our findings suggest that the stress field generated by the subduction and closure of the Bangong‐Nujiang Ocean had already been transferred to the eastern edge of the Tibet in the Cretaceous (at ∼128 Ma).