bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical consequence of the 4-week X-ray control after ESIN osteosynthesis of forearm fractures in children
Authors: Wegner Erik , Laubach Nora , Schippers Phillip , Schierjott Lotte , Shrotriya Rujuta , Gercek Erol , Drees Philipp , Dietz Sven-Oliver 
Published: January 2025

Abstract

Purpose
The absence of evidence based general guidelines for radiographic follow-ups of pediatric diaphyseal forearm fractures treated with ESIN results in an arbitrary array of X-ray examinations. In most pediatric traumatology departments, an X-ray check is carried out 4 weeks after ESIN osteosynthesis of forearm shaft fractures to detect incipient consolidation of the fracture. However, the elevated sensitivity to ionizing radiation requires special precautions in the pediatric populations. To prevent the indiscriminate use of this diagnostic tool it is necessary to assess the consequence of routinely taken X-rays at the 4-week follow-up.

Methods
This retrospective analysis included 219 pediatric patients who underwent ESIN treatment for a diaphyseal forearm fracture between 2010 and 2018 at the same pediatric trauma center. The primary outcome was defined as the prevalence of aberrant radiographic findings (ARF) during the 4-week follow-up with an otherwise normal clinical course and examination. Pathologies in the physical exam and irregularities in the medical history were summarized as non-radiological abnormalities (nRD). Binary logistic regression was calculated to identify risk factors associated with an increased likelihood of an ARF.

Results
Of the 219 pediatric patients included, 123 patients had no nRDs at the 4-week follow-up. Only one patient was found to have an ARF (absolute risk = 0.008). Regression showed that the odds of receiving an ARF increased significantly as other nRDs were detected (p = 0.012, OR 14.554). A positive correlation was found especially for irregularities in the medical history (n = 59, p = 0.003, OR = 8.134).

Conclusion
This study provides evidence that standardized radiographic follow-up 4 weeks after surgical treatment has no clinical consequences if the course of the fracture is otherwise uneventful. It should be strictly reserved for pediatric patients with a complicated course.
mBAT: a newly developed mobile application for self-screening of pediatric bleeding disorders – a multi-center study
Authors: Sermcheep Arpatsorn , Natesirinilkul Rungrote , Komvilaisak Patcharee , Songthawee Natsaruth , Laohverapanich Kamala , Songdej Duantida , Wongwerawattanakoon Pakawan , Kadegasem Praguywan , Chuansumrit Ampaiwan , Sirachainan Nongnuch 
Published: January 2025

Abstract
Bleeding assessment tools (BATs) are used by trained medical personnel for screening bleeding disorders on a one-to-one basis with patients; hence, they are time-consuming and limited in use for large-population screening. The aims of the study were to develop, validate, and demonstrate a Thai BAT mobile application (mBAT) for self-screening of bleeding disorders. mBAT was developed and validated using the paper-based Thai version of pediatric bleeding questionnaire (TPBQ). Then, mBAT was applied to 916 subjects from communities and hematology clinics. Those with scores of ≥3 consented to further investigation of bleeding disorders. mBAT was developed for Thai children using simple sentences, a video introduction, pictures, and auto-calculation. It showed a high correlation with the TPBQ: r = 0.96 and 0.97 in the PBQ and ISTH scoring systems, respectively (P<0.01). A score ≥3 was considered abnormal. The mBAT was applied to 916 subjects, with a mean (range) age of 10.5 (0.07-18.0) years. Most subjects (97.3%) were from the community, and the rest (2.7%) were from hematology clinics. The results showed 41 subjects had abnormal scores, and 35 (16 from the community and 19 from clinics) consented to diagnostic investigation. Eleven subjects (31.4%) were found to have bleeding disorders, including four with VWD, two each with hemophilia A and thrombocytopenia, and one each with factor VII deficiency, platelet dysfunction, and MYH9-related disorder. Thus, the prevalence rates of bleeding disorders in the subjects whose scores ≥3 from community and hematology clinics were 6.25% and 52.6%, respectively. In conclusions, the mBAT had a high correlation with the TPBQ. As a self-screening tool, it could enhance the diagnosis of bleeding disorders.
Clinical and economic effects of the transformation from an open to a laparoscopic center for colorectal surgery
Authors: Zimmermann Markus , Abdalla Thaer S. A. , Schlüter Kai-Uwe , Thomaschewski Michael , Keck Tobias , Schlöricke Erik 
Published: January 2025

Abstract

Purpose
The purpose of this study was to assess the feasibility of transitioning from open to laparoscopic surgery for colorectal carcinoma in a primary care hospital setting. Despite the recognized benefits of laparoscopic surgery in postoperative recovery and its demonstrated oncological equivalence, only a minority of patients (30–40%) in Germany undergo laparoscopic procedures, primarily due to concerns which, in addition to the perioperative quality data and economic aspects, focus on patient safety.

Methods
Over a three-year period (2012–2014), the transformation process was observed in a colorectal cancer center. Data from 237 patients (115 laparoscopic; 122 open) were collected prospectively and analyzed retrospectively. Short-term outcomes, including demographic data, perioperative complications, and quality metrics, as well as long-term survival data, were included.

Results
Laparoscopic surgery demonstrated several advantages. Postoperative intensive care needs decreased significantly (average length of stay: laparoscopic 1.2 days vs. open 2.5 days; p = 0.032). Hospital stays were also shorter following laparoscopic surgery (median laparoscopic 10 days vs. median open 14 days; p = 0.011). Quality of specimens, particularly lymph node retrieval, remained comparable (median laparoscopic = 18 vs. median open = 19). Survival data showed non- inferiority of the laparoscopic approach. Despite higher initial costs, laparoscopic surgery yielded cost savings of approximately 3150 € per case due to reduced intensive care and shorter hospital stays.

Conclusion
In conclusion, this study demonstrates the feasibility of transitioning from open to laparoscopic oncologic colorectal surgery in a primary care hospital setting. The findings suggest that such a transition can be accomplished without compromising the quality of specimens, while also realizing cost savings and maintaining patient safety.
The effect of cardiac catheterization on thyroid functions in infants with congenital heart diseases: a prospective observational study
Authors: Elbaz Boshra A. , Elmarsafawy Hala M. , Laimon Wafaa N. 
Published: January 2025

Abstract
This study aims to determine the incidence, clinical course, and risk factors of hypothyroidism following cardiac catheter (CC) in infants with congenital heart diseases (CHD). This prospective study involved 115 patients with CHD, all aged 3 years or younger, who underwent CC, as well as 100 healthy age- and sex-matched controls. Baseline thyroid function tests (TFTs) were conducted for both the patients and controls. In the CHD cohort, TFTs were reassessed 4 weeks after the CC, and for those with abnormal TFT values at this time, the tests were repeated after 2 weeks. Levothyroxine was started for patients with persistent abnormal TFTs, at 4 weeks and 6 weeks assessments after CC. Four weeks after CC, 12% of the studied group exhibited hypothyroidism. Univariate analysis identified significant predictors of hypothyroidism following CC: aortic stenosis (RR = 10.0 (1.49–66.99), P = 0.018), duration of fluoroscopy during CC (RR = 2.12 (0.99–4.26), P = 0.05), and total iodinated contrast media (iCM) during CC (RR = 2.5 (1.35–3.55), P = 0.019). Multivariate analysis indicated that iCM dose was the sole significant predictor of developing hypothyroidism (RR = 2.10 (1.01–3.23), P = 0.04). ROC curve analysis showed that the cut-off point of iCM dose for prediction of hypothyroidism evolution is 8.7 gm/kg, (sensitivity: 83%, specificity: 65%), while the cut-off point of fluoroscopy duration which predicts the development of hypothyroidism is 24 min (sensitivity: 83%, specificity: 66%). Acquired hypothyroidism after CC persisted in 4% of this cohort for 6 months.

Conclusion: Higher doses of iCM and longer duration of fluoroscope during CC are risk factors for the evolution of hypothyroidism post-CC. We recommend assessing thyroid profile 4 weeks after CC, particularly in patients who received an iCM dose greater than 8.7 gm/kg and/or exposed to fluoroscopy for more than 24 min.

What is known:

• The use of excess iodine leads to transient inhibition of thyroid hormones biosynthesis via the Wolff-Chaikoff effect.

• Infants with congenital heart diseases (CHD) are more prone to hypothyroidism due to higher frequency of abnormal thyroid morphology and routine exposure to supraphysiological doses of iodine.

What is new:

• Exposure to a total dose of iodinated contrast media more than 8.7 gm/kg and a fluoroscopy duration more than 24 min during cardiac catheter are risk factors for the evolution of thyroid hypofunction following cardiac catheter.
Impact of skeletal muscle mass of the trunk and extremities on standing spine parameters before and after surgery for adult spinal deformity with a minimum 2-year follow-up
Authors: Ohba Tetsuro , Tanaka Nobuki , Oda Kotaro , Katsu Marina , Takei Hayato , Go Goto , Haro Hirotaka 
Published: January 2025

Abstract

Purpose
The effect of skeletal muscle mass of the trunk and extremities on sagittal imbalance of the spine before and after surgery for adult spinal deformity (ASD) has not been elucidated. The purpose of this study was to examine the correlation between reduced skeletal muscle mass of the trunk and extremities, as well as spinopelvic parameters, preoperatively, postoperatively and at least 2 years after surgery for ASD.

Methods
This retrospective observational study included 140 consecutive patients who had undergone surgery for ASD and were followed-up for at least 2 years and whose skeletal muscle mass could be measured preoperatively using whole-body dual-energy X-ray absorptiometry. Correlations between skeletal muscle mass and spinopelvic parameters were assessed preoperatively, postoperatively, and after 2 years of follow-up.

Results
All spinopelvic parameters were significantly improved postoperatively compared with preoperatively. Between the postoperative period and two years post-surgery, a significant loss of correction was observed in SVA and GT. Trunk muscles mass showed significant negative correlations with preoperative PT, SS, PI-LL, SVA, GT, and TPA, but there was no significant correlation with postoperative parameters. Through univariate and multivariate regression analysis, lower limb skeletal muscle mass showed a significant negative correlation with SVA at two years postoperatively and the loss of corrected SVA (ΔSVA) over two years.

Conclusion
This study revealed that lower extremity muscle mass was implicated in the loss of corrected SVA 2 years after surgery. This study is clinically meaningful as it suggests that strength training for the lower extremities, performed preoperatively and/or postoperatively, can improve sagittal imbalances of the spine in patients with severe ASD or maintain SVA after corrective surgery.

Level of evidence
3.
A proof of $${\mathfrak {L}}^2$$-boundedness for magnetic pseudodifferential super operators via matrix representations with respect to parseval frames
Authors: Lee Gihyun , Lein Max 
Published: January 2025

Abstract
A fundamental result in pseudodifferential theory is the Calderón–Vaillancourt theorem, which states that a pseudodifferential operator defined from a Hörmander symbol of order 0 defines a bounded operator on

$$L^2({\mathbb {R}}^d)$$

L
2

(

R

d

)

. In this work we prove an analog for pseudodifferential super operator, i. e. operators acting on other operators, in the presence of magnetic fields. More precisely, we show that magnetic pseudodifferential super operators of order 0 define bounded operators on the space of Hilbert–Schmidt operators

$${\mathfrak {L}}^2 \bigl ( {\mathcal {B}} \bigl ( L^2({\mathbb {R}}^d) \bigr ) \bigr )$$

L

2

(

B

(

L
2

(

R

d

)

)

)

. Our proof is inspired by the recent work of Cornean et al. (J Fourier Anal Appl 30(21):1–21, 2024. https://doi.org/10.1007/s00041-024-10072-4) and rests on a characterization of magnetic pseudodifferential super operators in terms of their “matrix elements” computed with respect to a Parseval frame.
The impact of past and current district-level climatic shifts on maize production and the implications for South African farmers
Authors: Mangani Robert , Mazarura Jocelyn , Matlou Solly , Marquart Arnim , Archer Emma , Creux Nicky 
Published: January 2025

Abstract
South Africa’s climate studies generally focus on coarser provincial levels, which aid policy recommendations, but have limited application at the farm level. District level climate studies are essential for farmer participation in climate change mitigation strategies and management. Our study aimed to investigate historical climate data for trends and their influence on maize yields at the magisterial level. Six sites were selected from three major maize-producing provinces in South Africa: Mpumalanga, Northwest, and Free State. Magisterial districts in each province were selected from different Köppen-Geiger climate zones. The climate variables assessed by the Mann–Kendall trend test included maximum or minimum temperature, rainfall, number of extreme high-temperature days, rainfall onset and cessation from 1986 to 2016. The average maximum temperatures were observed to have significant upward trends in most locations, except for Schweizer-Reneke and Bethlehem. The fastest rate of change was observed at Klerksdorp (0.1 °C per 30 years of study), while the Schweizer-Reneke district was the slowest (0.05 °C per 30 years of study). No significant changes were observed in rainfall onset, cessation, or total rainfall in Schweizer-Reneke, Standerton, and Bethlehem, which are scattered across the different provinces. The other districts in each province showed significant changes in these parameters. Rainfall accounted for the significant variation in maize yields over the study period, explaining between 18 and 40% of the variation in the North West, and between 1 and 17% in the Free State. These findings highlight the importance of understanding location-specific changes at a finer scale, which can help farming communities adjust agronomic practices and adapt to local climate shifts.
Texture discrimination via Hilbert curve path based information quantifiers
Authors: Bariviera Aurelio F. , Hansen Roberta , Pastor Verónica E. 
Published: January 2025

Abstract
The analysis of the spatial arrangement of colors and roughness/smoothness of figures is relevant due to its wide range of applications. This paper proposes a texture characterization method that extracts data from images using the Hilbert curve. Three information theory quantifiers are then computed: permutation entropy, permutation complexity, and Fisher information measure. The proposal exhibits some important properties: (i) it allows discrimination between figures according to varying degrees of correlations (as measured by the Hurst exponent), (ii) it is invariant to rotation and symmetry transformations, (iii) it is invariant to image scaling, (iv) it can be used for both black and white and color images. Validations have been performed not only using synthetic images but also using the well-known Brodatz image database.
Optical assessment of lignin-containing nanocellulose films under extended sunlight exposure
Authors: Nizamov Rustem , Kaschuk Joice , Al Haj Yazan , Nyberg Mikael , Imani Monireh , Pasquier Eva , Rojas Orlando , Abitbol Tiffany , Vapaavuori Jaana , Miettunen Kati 
Published: January 2025

Abstract
This study investigates the stability and UV-blocking properties of cellulose nanofibril (CNF) and TEMPO-oxidized cellulose nanofibril (TOCNF) films, with and without lignin, under 1000 h of artificial sunlight. The literature to date provides no quantitative analysis of such films’ stability, however such insight is critical for optoelectronic applications for instance solar cells. This contribution examines the films from practical perspectives, considering aging with respect to their optical performance and retention of UV protective qualities. Films containing residual lignin (LignoCNF and LignoTOCNF), and lignin nanoparticles (CNF-LNP and TOCNF-LNP) demonstrated remarkable UV-blocking stability; even after the aging transmittance of LignoCNF and CNF-LNP films remained lower than 1% below 390 nm. Most lignin-containing films exhibited increased transmittance between 400 and 600 nm after aging, except for LignoTOCNF, which showed a decrease in transmittance that was comparable to that displayed by non-lignin films. Nevertheless, long-term light exposure induced a decrease in their mechanical properties. Tensile tests revealed increased brittleness in CNF and LignoCNF, while LNP-containing films showed reduced strain at the break. The observed changes were linked to the potential oxidation of COO- groups and structural modifications in both cellulose and lignin. Overall, the incorporation of lignin into nanocellulose films enhances their durability, UV protection, and mechanical stability, making them promising candidates for sustainable optoelectronic applications.
Exploring adoption of humanoid robots in education: UTAUT-2 and TOE models for science teachers
Authors: Ates Hüseyin , Polat Merve 
Published: January 2025

Abstract
This study examines the factors influencing science teachers’ intentions to adopt humanoid robots in educational settings. It employs the Unified Theory of Acceptance and Use of Technology 2 (UTAUT-2) and the Technology-Organization-Environment (TOE) framework as guiding theoretical models. By integrating UTAUT-2, which emphasizes individual factors, and TOE, which addresses organizational and environmental influences, the study constructs a comprehensive model that explores both personal and contextual drivers of adoption. Utilizing structural equation modeling on a sample of 1,150 pre-service and in-service science teachers, the study reveals that the integrated model demonstrates superior predictive power compared to each framework individually. Results highlight the moderating role of professional experience in the adoption process, with significant differences identified between pre-service and in-service teachers. The findings reveal significant differences between pre-service and in-service teachers, illustrating the moderating role of professional experience in the adoption process. This study provides a deeper understanding of how motivational, organizational, and environmental factors interact to influence adoption intentions. These insights provide practical guidance for developing targeted training programs, promoting institutional readiness through well-crafted policy initiatives, and implementing pilot projects to support schools in the effective integration of humanoid robots into educational curricula. These findings provide actionable insights for educational policymakers and practitioners aiming to enhance teaching quality and student engagement through innovative technologies.
The Importance of Self-Selection and Childcare Leave Length for Child Penalty
Authors: Österbacka Eva , Räsänen Tapio 
Published: January 2025

Abstract
Childbirth has consequences for mothers’ labour market outcomes which in turn has consequences for gender differences in pay. In the Finnish context, earnings-related parental leave can be extended with home care allowance which enables mothers to choose their childcare leave length with varying benefit levels. We empirically test the importance of choice of childcare leave length for the subsequent child penalty. We apply Finnish register data with information on the length of childcare leave at the individual and workplace levels. By using workplace comparisons, we can account for some of the endogeneity in choices of workplace, parity, and childcare leave length. By instrumenting the leave length with varying home care allowance levels, we categorise always-takers, never-takers, and compliers. We find that the child penalty is heterogeneous and highly related to the choice of leave length. Always-takers use longer leaves than the workplace average and are penalised, while never-takers use shorter leaves than the workplace average and experience only a mild child penalty. Compliers adjust their leave lengths to the allowance level and experience child penalties in between. These results support that self-selection of childcare leave length has implications for post-birth outcomes and in addition, that family policy can affect the child penalty and the gender gap in pay.
Experiences of Intimate-Partner Violence and Violence from a Family Member During COVID-19 Among LGBTQ Adults in Australia
Authors: Worrell Shane , Melendez-Torres G. J. , Bourne Adam , Macioti Paola Gioia , Hill Adam O. , Amos Natalie 
Published: January 2025

Abstract

Purpose
The COVID-19 pandemic has presented unique challenges and concerns regarding the potential exacerbation of violence against lesbian, gay, bisexual, trans and gender diverse and queer people from intimate partners and family members. The impacts of the pandemic may have been disproportionately felt by LGBTQ communities who already experienced high rates of intimate-partner violence and violence from family members entering the pandemic.

Method
Data from 3,135 LGBTQ adults who completed an online survey of their experiences in Australia during the pandemic were analysed. Logistic regressions analyses were used to explore sociodemographic characteristics associated with rates of violence from an intimate partner or family member during the pandemic as well as the impact of government-ordered lockdowns on experience of these types of violence by comparing the states that experienced more extensive lockdowns (Victoria and New South Wales) to the rest of Australia.

Results
The study revealed high rates of violence from an intimate partner (16.9%) or family member (29.1%) during the pandemic, with many indicating that this violence was new or worsening during the pandemic. Experiences of IPV and violence from a family member were found to vary across gender, sexual orientation, multicultural background and residential location. However, no evidence suggested that lockdowns specifically had impacted the prevalence of IPV or violence from a family member within the LGBTQ community with rates not differing across states.

Conclusions
The risks of violence from an intimate partner or family member among LGBTQ individuals were high during the pandemic in Australia, regardless of lockdown measures. The findings underscore the importance of efforts to understand the systemic factors influencing IPV and violence from a family member within the LGBTQ community and address the enduring impacts of the pandemic.
Szász–Mirakjan–Durrmeyer operators defined by multiple Appell polynomials
Authors: Abel Ulrich , Agratini Octavian , Păltănea Radu 
Published: January 2025

Abstract
The paper aims at approximating functions through a sequence of linear positive operators of continuous type. First we define the Appell polynomials of dimension d

$$(d\ge 2)$$

(
d
≥
2
)

and with their aid we expand the Szász–Mirakjan operators in the Durrmeyer sense. The investigation of the new class of operators involves the study of convergence by using the universal Bohman–Korovkin theorem and the indication of the error by using modulus of smoothness. The main results are given by the asymptotic expansion of both the operators and their derivatives with the explicit specification of all coefficients in a concise form. In particular, Voronovskaja type theorems are obtained.