bluuebunny/crossref_metadata_2025_split huggingface dataset:
On Pleijel's nodal domain theorem for the Robin problem
Authors: Hassannezhad Asma , Sher David 
Published: February 2024

AbstractWe prove an improved Pleijel nodal domain theorem for the Robin eigenvalue problem. In particular, we remove the restriction, imposed in previous work, that the Robin parameter be non‐negative. We also improve the upper bound in the statement of the Pleijel theorem. In the particular example of a Euclidean ball, we calculate the explicit value of the Pleijel constant for a generic constant Robin parameter, and we show that it is equal to the Pleijel constant for the Dirichlet Laplacian on a Euclidean ball.
As Grids Reach 100% Renewable at Peak, Growing Curtailment of 8 Gigawatts Looms as a Challenge to Decarbonization
Authors: Chien Andrew A. , Lin Liuzixuan 
Published: February 2024

In April 2022, the California Independent System Operator (CAISO) power grid reached momentary peaks of 100% renewable energy for the first time. After a year, momentary 100% supply from renewables isn't a news any more, and CAISO reported record wind and solar renewable curtailment of 606 GWh (March 2023) and 686 GWh (April 2023). In addition, peak renewable coincided with curtailment rates of 8 GW in April 2023. Our prior studies documented monthly-peak renewable curtailment growth of 40% annually (23 GWh in March 2015 growing to 82 GWh in March 2017). Updating for 2018-2023 shows that 40% annual growth has continued through April 2023 and with it, CAISO has reached an average sunlight hours curtailment rate of 2 GW. If this 9-year trend continues unchecked for the next 5 years, monthly curtailment is projected to reach 3.3 TWh in both March and April of 2028, an average sunlight curtailment rate of nearly 11 GW.
We analyze causes of increased curtailment, and discuss its likely future trajectory (growth). We also discuss the challenges its growth represents for grid decarbonization. Finally we outline the difficulties in reducing curtailment growth and highlight several new opportunities for power grids and computing systems.
State Estimation of Drive-by-Wire Chassis Vehicle Based on Dual Unscented Particle Filter Algorithm
Authors: Wang Zixu , Chen Chaoning , Jiang Quan , Zheng Hongyu , Kaku Chuyo 
Published: February 2024

AbstractAccurate vehicle dynamic information plays an important role in vehicle driving safety. However, due to the characteristics of high mobility and multiple controllable degrees of freedom of drive-by-wire chassis vehicles, the current mature application of traditional vehicle state estimation algorithms can not meet the requirements of drive-by-wire chassis vehicle state estimation. This paper proposes a state estimation method for drive-by-wire chassis vehicle based on the dual unscented particle filter algorithm, which make full use of the known advantages of the four-wheel drive torque and steer angle parameters of the drive-by-wire chassis vehicle. In the dual unscented particle filter algorithm, two unscented particle filter transfer information to each other, observe the vehicle state information and the tire force parameter information of the four wheels respectively, which reduce the influence of parameter uncertainty and model parameter changes on the estimation accuracy during driving. The performance with the dual unscented particle filter algorithm, which is analyzed in terms of the time-average square error, is superior of the unscented Kalman filter algorithm. The effectiveness of the algorithm is further verified by driving simulator test. In this paper, a vehicle state estimator based on dual unscented particle filter algorithm was proposed for the first time to improve the estimation accuracy of vehicle parameters and states.
Tampa Scale for Kinesiophobia in chronic neck pain patients (TSK-neck): structural and construct validity and reliability in a Brazilian population
Authors: Mendes Letícia Padilha , Fidelis-de-Paula-Gomes Cid André , Pontes-Silva André , Barreto Felipe Souza , Pinheiro Jocassia Silva , da Silva Aron Charles Barbosa , de Oliveira Pires Flávio , da Cunha Leal Plinio , Avila Mariana Arias , Dibai-Filho Almir Vieira 
Published: February 2024

Abstract
Background
To date, there are no studies in the literature that define the internal structure of the Tampa Scale for Kinesiophobia (TSK) in patients with chronic neck pain based on factorial analysis. As such, we aimed to verify and identify the best structure of the Brazilian version of the TSK in patients with chronic neck pain.

Methods
We included Brazilian participants aged ≥18 years, both sexes, with self-reported neck pain for more than 3 months and pain intensity ≥3 on the Numerical Pain Rating Scale (NPRS). Dimensionality and number of TSK items were assessed using confirmatory factor analysis (CFA). We tested the following internal structures: structure 1 (1 domain and 17 items), structure 2 (1 domain and 11 items), structure 3 (2 domains and 11 items), and structure 4 (2 domains and 9 items). We used the Pain-Related Catastrophizing Thoughts Scale (PCTS) and the NPRS for construct validity. In addition, we assessed test-retest reliability for the seven-day interval using intraclass correlation coefficient (ICC2,1), Cronbach’s alpha to assess internal consistency, and ceiling and floor effects.

Results
The study sample included of 335 patients. Most were women (77.6%), young adults (~ 34 years), single (48.4%), with complete primary education (57.3%), physically inactive (66.6%), with a mean pain duration of 46 months and a mean pain intensity of ~ 5 points on the NPRS. Redundancy was found in the following items: item 1 with item 2 (modification indices = 21.419) and item 13 with item 15 (modification indices = 13.641). Subsequently, based on these paired analyses, the items with the lowest factor loadings (items 2 and 15) were excluded. As such, TSK structure 4 was composed of two domains (“somatic focus” and “activity avoidance”) and 9 items, which showed adequate fit indices and lower AIC and SABIC values. We observed significant values (p < 0.05) with a correlation magnitude greater than 0.142 to 0.657 between the two domains of the TSK-neck and the other instruments (PCTS and NPRS). We found excellent reliability (ICC2,1 ≥ 0.96) and adequate internal consistency (Cronbach’s alpha ≥0.98) of the TSK-neck. Finally, ceiling and floor effects were not observed.

Conclusion
The TSK-neck structure with two domains (somatic focus and activity avoidance) and nine items is the most appropriate for patients with chronic neck pain.
Association between estimated glomerular filtration rate and reversion to normoglycemia in people with impaired fasting glucose: a 5-year retrospective cohort study
Authors: Tu Lirong , Hu Haofei , Zhou Xinglei , Zhang Heping , Liu Xiaohui , Yang Dehua , He Yongcheng 
Published: February 2024

Abstract
Objectives
The present body of evidence regarding the correlation between the estimated glomerular filtration rate (eGFR) and the reversal of impaired fasting glucose (IFG) to normoglycemia remains constrained. Consequently, the objective of our study is to examine the relationship between eGFR and the restoration of normoglycemia in individuals with IFG.

Methods
This retrospective cohort study consecutively collected data from 24,541 non-selective participants with IFG at Rich Healthcare Group in China from January 2010 to 2016. We aimed to investigate the association between baseline eGFR and reversion to normoglycemia using the Cox proportional-hazards regression model. Through the utilization of a Cox proportional hazards regression model featuring cubical spline smoothing, we were able to ascertain the non-linear correlation between eGFR and the return to normoglycemia. Furthermore, various sensitivity and subgroup analyses were carried out, and a competing risk multivariate Cox regression was employed to examine the progression to diabetes as a competing risk for the reversal of normoglycemic events.

Results
In our study, comprising 24,541 participants, the average age was 49.25 ± 13.77 years, with 66.28% being male. The baseline eGFR mean was 104.16 ± 15.78 ml/min per 1.73 m2. During a median follow-up period of 2.89 years, we observed a reversion rate to normoglycemia of 45.50%. Upon controlling for covariates, our findings indicated a positive correlation between eGFR and the probability of returning to normoglycemia (HR = 1.008, 95% CI 1.006–1.009). In addition, a non-linear association was observed between eGFR and the likelihood of transitioning from IFG to normoglycemia. The inflection point of eGFR was found to be 111.962 ml/min per 1.73 m2, with HRs of 1.003 (95% CI 1.001, 1.005) on the left side of the point and 1.019 (95% CI 1.015, 1.022) on the right side. Our robust results were supported by competing risks multivariate Cox's regression and sensitivity analysis.

Conclusions
The findings of our investigation indicate a favorable and non-linear correlation between eGFR and the restoration of normoglycemia in Chinese individuals with IFG. Specifically, a reduction in renal function at an early stage in these patients may considerably diminish the likelihood of attaining normoglycemia.
The Influence of Science Comics Learning Media and Problem-Based Learning Methods on the Effectiveness of Support Solution Learning for Students of SMAN 1 Toraja Utara
Authors: Rantetampang Sulpa Dewi , Nadeak Bernadetha , Limbong Mesta 
Published: February 2024

Education is one of the spearheads of a country's success. In education, the teacher is the spearhead; for this reason, the teacher must continue to improve himself to innovate and be creative in presenting the material being taught so that learning objectives can be adequately achieved. One is in chemistry learning, which must motivate students to continue developing critical thinking skills. For this reason, through this thesis, the writer will examine "The Influence of Science Comic Learning Media with MethodsProblem Based Learning on the Effectiveness of Buffer Solution Learning for SMAN 1 Toraja Utara students. This type of research is correlational and aims to determine the effect of Science Comics and Method media Learning as the independent variable on the effectiveness of learning as the dependent variable. The population of this study were students in class XI of the Mathematics and Natural Sciences Department of SMAN 1 Toraja Utara for the academic year 2022/2023, which consisted of 3 classes with a total of 96 students. The sample was taken randomly with 77 students using the Solvin formula N = n/N (d)2 + 1. The effect of comic and media methods problem-based learning on the effectiveness of learning using a questionnaire from student observations on teacher teaching activities. The data obtained were analyzed based on descriptive analysis.
Loss of socioemotional and occupational roles in individuals with Long COVID according to sociodemographic and clinical factors: Secondary data from a randomized clinical trial
Authors: León-Herrera Sandra , Samper-Pardo Mario , Oliván-Blázquez Bárbara , Sánchez-Recio Raquel , Magallón-Botaya Rosa , Sánchez-Arizcuren Rafael 
Published: February 2024

Background
Long COVID syndrome can have a major impact on life organization. Its persistent symptoms may cause a potentially disabling condition that affects the quality of life of those suffering from it. The resulting loss of functional independence hinders the ability to return to normal life. Many research studies carried out on this novel syndrome have focused on describing its extensive symptomatology. Studies on later repercussions, however, such as disability or loss of significant roles, remain scarce. This study examines the loss of socioemotional and occupational roles experienced by individuals suffering from Long COVID, as a result of the disease. A secondary objective is to analyze the sociodemographic and clinical factors associated with this loss of roles.

Patients and methods
A cross-sectional study was conducted with the participation of 100 patients diagnosed with Long COVID, over the age of 18, and attended by Primary Health Care in the Autonomous Community of Aragon. The main study variable was the loss of significant socioemotional and occupational roles by the participants. Sociodemographic and clinical data were also collected through a structured interview. Subsequently, a descriptive, correlational, and regression-based statistical analysis was performed using the SPSS Statistics program.

Results
Based on the 100 study participants, the median number of roles lost was 3 (IQR 2) and the median number of valuable roles lost was 2 (IQR 2). More cognitive impairment and not having an active work role were predictors of a greater loss of valuables roles.

Conclusion
Long COVID symptoms hinder the development of socioemotional and occupational roles. Healthcare professionals should consider this when intervening to ensure that their patients may recover their life as it was before the disease.
The effect of physical interventions on pain control after orthodontic treatment: A systematic review and network meta-analysis
Authors: Li Junxiong , Li Siyu , Chen Hongjun , Feng Jingzhe , Qiu Ya , Li Lihua 
Published: February 2024

Objective
Pain is a frequent adverse reaction during orthodontic treatment, which can significantly reduce treatment compliance and compromise the expected treatment effect. Physical interventions have been used to alleviate pain after orthodontic treatment, but their effectiveness is controversial. This study used a network meta-analysis to assess the efficacy of various physical interventions typically used in managing pain after orthodontic treatment, with a view to provide evidence-based recommendations for representative interventions for orthodontic pain relief during peak pain intensity.

Methods
A systematic search of six electronic databases, from their respective inception dates, was conducted to identify relevant literature on the efficacy of various typical physical interventions for managing pain after orthodontic treatment. Literature screening was performed according to the Cochrane System Evaluator’s Manual. Stata 16.0 was used to assess heterogeneity, inconsistency, publication bias, and sensitivity to generate an evidence network diagram and conduct a network meta-analysis.

Results
In total, 771 articles were reviewed to collect literature on interventions, including low-level laser therapy (LLLT), vibration, acupuncture, and chewing. Of these, 28 studies using a visual analog scale (VAS) as an outcome indicator were included. The results showed that LLLT, vibration, acupuncture, and chewing effectively relieved the pain symptoms in patients after orthodontic treatment. At 24 h post-treatment, LLLT (surface under the cumulative ranking curve [SUCRA] = 80.8) and vibration (SUCRA = 71.1) were the most effective interventions. After 48 h of treatment, acupuncture (SUCRA = 89.6) showed a definite advantage as the best intervention.

Conclusion
LLLT, vibration, acupuncture, and chewing can alleviate pain associated with orthodontic treatment. Among these interventions, acupuncture was found to be the most effective at 48 h after orthodontic treatment. In addition, acupuncture demonstrated long-lasting and stable pain-relieving effects. However, further studies are needed to determine the most suitable equipment-specific parameters for acupuncture in relieving pain associated with orthodontic treatment.
negação do trabalho concreto como prática dessocializante
Authors: Silva Everton Luís da , Opuszka Paulo Ricardo , Domingues André Luan 
Published: February 2024

O presente artigo analisará, à luz dos eixos da crítica social (trabalho, linguagem e desejo), os chamados pressupostos concretos de garantia da sobrevivência da espécie humana (condições materiais de sobrevivência) e como se tornam centrais para análise da forma de constituição das subjetividades, aliada à noção lukásciana de “falso socialmente necessário” e de “estrutura” em Jacques-Alain Miller surjam como possibilidades de leitura e compreensão da realidade presente para construção de resposta ao questionamento aqui posto: a noção de trabalho abstrato pode ser compreendida como criação por meio do que se qualifica como produção do falso socialmente necessário? Aqui, teoria de base e abordagem filiam-se à perspectiva crítica, vislumbrando-se a utilização de pensadores com lecionar multidisciplinar, em tentativa de conexão entre diferentes ramos do saber-viver. Conclui-se que uma possível leitura conjunta da ideia de falso socialmente necessário, aplicada a ideia de trabalho abstrato, aliada ao pensamento de Jacques-Alain Miller, atribuindo-se ao citado trabalho abstrato a condição de “estrutura estruturante e estruturada” nos (e dos) processos de subjetivação e individuação do tempo presente, indica a construção de uma falsa realidade (que se concretiza) enquanto estruturação de forma de pensar-viver que nega a humanidade do humano, impedindo os reais processos de subjetivação e individuação a partir do concreto e do absolutamente outro.
Esophageal Adenocarcinoma Presenting as an Isolated Brain Lesion 6 Years After Treatment
Authors: Murthy Jeevan , Moise John , Mi Kaitlyn , Aulakh Sonikpreet 
Published: February 2024

ABSTRACT
Intracranial metastasis is a rare sequela of esophageal adenocarcinoma (EAC), typically presenting within the first 2 years after primary tumor detection. Our patient is a 72-year-old man diagnosed with an EAC in 2015 and presented with recurrence of a distant solitary brain lesion approximately 6 years after the initial diagnosis. Histological diagnosis was confirmed as EAC with all relevant indicators. In addition, we used genomic profiling to detect biomarkers that can be useful in the future for therapies.
Resiko Keterlambatan pada Pembangunan Gedung Delapan Lantai Menggunakan Metode Work Breakdown Structure (WBS)
Authors: Zulfiar M Heri , Fatimah Amaida Dewi 
Published: February 2024

Abstrak Keterlambatan proyek kontruksi dapat diartikan bertambahnya waktu penyelesaian suatu proyek yang melebihi kontrak yang sudah ada. Penelitian ini bertujuan untuk melakukan penilaian risiko keterlambatan beserta upaya yang harus dilakukan untuk mencegah terjadinya keterlambatan proyek Pembangunan Gedung 8 Lantai. Metode yang dilakukan pada penelitian ini yaitu pengumpulan penilaian risiko keterlambatan dengan form yang dibuat berdasarkan WBS yang bersumber dari kurva S, serta wawancara responden mengenai upaya untuk menanggulangi risiko keterlambatan proyek tersebut. Penelitian ini didapatkan hasil bahwa proyek Pembangunan ini memiliki nilai risiko skala rendah sebesar 3,7. Pada pekerjaan persiapan dengan nilai risiko sebesar 5,78(skala sedang). Pada pekerjaan struktur bawah dengan nilai risiko sebesar 3,7(skala rendah). Pada pekerjaan struktur atas dengan nilai risiko sebesar 4,04 (skala rendah). Pada pekerjaan finishing dengan nilai risiko sebesar 2,78 (skala rendah). Terakhir, pada pekerjaan elektrikal dengan nilai risiko 2,2 (skala rendah). Untuk kemungkinan kejadian tertinggi yaitu cuaca hujan saat pengecoran pelat lantai dan balok didapatkan upaya untuk mencegah terjadinya risiko keterlambatan proyek yaitu melakukan pekerjaan lainnya yang tidak terpengaruh cuaca dan melakukan lembur saat cuaca mendukung. Kata-kata kunci: keterlambatan, risiko, upaya, proyek kontruksi, gedung. Abstract Construction project delays can be interpreted as increasing the time to complete a project that exceeds the existing contract. This study aims to assess the risk of delays along with the efforts that must be made to prevent delays in the building construction project, as well as interviews with respondents regarding efforts to overcome the risk of delays in the project. This study found that the building project had a low scale risk score of 3.7. In preparatory work with a risk value of 5.78 (medium scale). The lower structure work has a risk value of 3.7 (low scale). In superstructure work with a risk value of 4.04 (low scale). In finishing work with a risk value of 2.78 (low scale). Finally, on electrical work with a risk value of 2.2 (low scale). For the highest possible event, namely rainy weather when casting floor slabs and beams, efforts are made to prevent the risk of project delays, namely doing other work that is not affected by the weather and doing overtime when the weather supports it . Keywords: delay, risk, on, construction project, building
Frequency and types of congenital uterine anomalies during caesarean section: A prospective cohort study
Authors: Patil Mridula , Patil Vrinda 
Published: February 2024

: Congenital uterine anomalies are due to mal-development of the mullerian ducts. They can lead to adverse reproductive outcomes like recurrent miscarriage, preterm birth, foetal malpresentation and subfertility. Prevalence of congenital uterine anomalies is 5-7%. To find the frequency and types of congenital uterine anomalies during caesarean section. This is a prospective cohort study done at SDM College of Medical Sciences and Hospital, Dharwad, India from August 2020 to July 2021. 2932 women undergoing caesarean section participated in the study. The uterus was examined thoroughly. The type of uterine anomaly was noted. : There were 22 cases of congenital uterine anomalies (CUAs) during caesarean section. Prevalence of CUA was 0.75%. There was increased incidence of miscarriage(27%), pre-eclampsia (31.8%), foetal malpresentation (31.8%), foetal growth restriction (9%) and preterm caesarean section (40.9%) among women with a uterine anomaly. Commonest type of CUA was unicornuate uterus (31.8%), followed by septate (27.2%), arcuate (22.7%) and bicornuate uterus (18.1%). Poorest outcomes were seen with septate and unicornuate uteri.: Caesarean section provides an opportunity to diagnose congenital uterine anomalies. This information can be used to plan their future reproductive life. Exploring the uterus to look for uterine anomalies after delivery of the fetus and placenta has to be done and documented.