bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and study of crashworthiness for square vicsek fractal hierarchical multicellular tubes under axial compression
Authors: Xu Shen , Huang Huilan , Deng Xiaolin 
Published: October 2024

Through extensive examination of thin-walled structures, the efficacy of enhancing the crashworthiness of thin-walled tubes via layered structures has been confirmed. In this study, we introduce a novel design called the square Vicsek fractal hierarchical multicellular tube (SVFHMT), which integrates principles from fractal science, specifically Vicsek fractals. Unlike conventional layered structures that align along a single direction, our design incorporates layers evenly distributed at five positions throughout the structure, resulting in a more uniform material distribution compared to traditional layering methods. In this paper, the verified finite element model is used to analyze the crashworthiness of the structure, and the effects of levels, wall thickness, wall thickness ratio of different levels and height to diameter ratio on the crashworthiness of the structure are discussed. The mean crushing force (MCF) of SVFHMT is predicted by Simplified Super Folding Element theory. Our findings highlight the significant influence of layering, wall thickness, and ratios of wall thickness between layers on the crashworthiness of the structure. Specifically, for structures of equal mass, the energy absorption of second-order SVFHMTs and third-order SVFHMTs demonstrates substantial improvements compared to square nine-cell tubes, with increases of 51.05% and 91.70%, respectively. Moreover, when maintaining equal mass for second-order SVFHMTs with differing ratios of wall thickness between layers, specific energy absorption ranges from 15.69 kJ/kg to 21.29 kJ/kg. Notably, the maximum error between theoretical and simulated values of the mean crushing force for each order of SVFHMT is only 7.34%. This underscores the effectiveness of our novel layer design strategy, which diverges significantly from conventional approaches and offers valuable insights for advancing layered structures further.
Surgical Treatments of Pediatric Bilateral Vocal Fold Paralysis: A Systematic Review
Authors: Nemry Noémie , Lechien Jérôme R. 
Published: October 2024

Objective To review the current literature about surgical treatments of pediatric bilateral vocal fold paralysis (PBVFP). Methods A systematic review of the current literature in PubMed, Scopus, and Cochrane Library regarding etiologies and management of PBVFP was performed until November 2023 according to PRISMA statements. Quality assessment was assessed with Methodological Index for Non-Randomized Studies (MINORS) tool. Results Of the 211 screened articles, 26 were included accounting for 320 patients. The etiologies included idiopathic (42.2%), congenital (19.7%), neurological (16.9%), or post-surgical (9.5%) pediatric bilateral vocal cord paralysis (PBVCP). Patients were decannulated in 76.7% of cases without laryngeal procedure. Decannulation was achieved in 84.6%, 66.6%, 83.3%, 80.0%, and 62.5% of cases of laterofixation of the vocal fold, cricoid split approaches, partial or total arytenoidectomy, uni- or bilateral transverse cordotomy, and selective laryngeal reinnervation, respectively. Dyspnea/stridor relief, swallowing, or voice quality outcomes were used in some studies, which reported conflicting results. Revision and complications varied between studies, with complications mainly involving edema, granuloma, or aspirations. Revision was required in 6.4%, 12.9%, and 40.0% of cases that underwent laterofixation of the vocal fold, arytenoidectomy, and cricoid split procedures, respectively. There was substantial heterogeneity across studies in inclusion criteria, procedures, and outcomes. Conclusion The management of PBVFP may involve several temporary or permanent surgical procedures that are associated with overall subjective improvements of symptoms, and laryngeal findings. The retrospective design of studies, the small number of cohorts, the lack of objective outcomes, and the differences between teams regarding procedure timing and features limit drawing reliable conclusions about the superiority of one technique over others.
Clusters, classification and epidemiology of interstitial lung diseases: concepts, methods and critical reflections
Authors: Antó J.M. , Cullinan P. 
Published: October 2024

The present article reports on two conceptual and methodological issues concerning interstitial lung disease (ILD) about which there is a lot of misunderstanding and contradiction: the investigation of epidemics and clusters and the classification and epidemiology of ILD.In general, an epidemic is the occurrence of cases of an illness in excess of normal expectancy. The investigation of an epidemic often demands a number of sequential studies: first descriptive, then aetiological. Clusters consist of an increase in incidence of much smaller magnitude, perhaps excluding the possibility that this is merely a result of chance. In recent years, more valid statistical methods for the assessment of clusters have developed.For interstitial lung disease in particular, different classifications exist that are sometimes inconsistent and may change with time. All diseases require a process of ascertainment, whereby they are identified, classified and perhaps registered. The two most employed epidemiological techniques for testing aetiological hypotheses are the cohort and case-referent approaches.
Classifying interstitial lung diseases in a fractal lung: a morphologist's view “anno Domini2000”
Authors: Verbeken E.K. 
Published: October 2024

Interstitial lung diseases (ILDs) remain a challenging problem for the pathologist. New insights in aetiology and pathogenesis, new diagnostic tools and successful research have led to a renewed interest in ILDs during the last few years, and highlighted the need for a novel classification, particularly of the chronic and/or idiopathic categories of interstitial pneumonias.The present paper compares the terminology of the latter categories in current and previous classifications and briefly discusses the pathological basis for the classifications of ILDs in general, and for the idiopathic interstitial pneumonias (IIPs) in particular. The difference between highversuslow morphological specificity determines the pathological classifications. The classification of IIPs relies upon a pattern recognition taking temporal and spatial distribution into consideration.The last section of this paper discusses recent research opposing the conventional pathological approach, analogous to the mechanical two-compartment model of the lung, in which a discontinuity is considered between these two compartments, and thus, a distinction is made between interstitial lung diseases with and without bronchiolitis. In the recent “fractal” concept, the continuity of the lung architecture is emphasized: the lung is a so-called fractal tree with noninteger dimensions. In this fractal model, an interstitial lung disease effects a peripheral part of the pulmonary fractal tree and this may or may not include bronchioles.
Expression of xenobiotic-metabolizing enzymes in human pulmonary tissue: possible role in susceptibility for ILD
Authors: Hukkanen J. , Pelkonen O. , Raunio H. 
Published: October 2024

The lung is a major target for all inhaled toxicants. Many inhaled chemicals are not hazardous as such, but are biotransformed to reactive intermediates. Therefore, the pathogenesis of interstitial and other lung diseases is intimately linked to exposure to environmental and other chemicals, which may be causative or modifying factors in the cellular pathways and mechanisms mediating oxidative stress and cell protection in the pulmonary tissue.Several different xenobiotic-metabolizing cytochrome P450 (CYP) and phase II enzymes (i.e.conjugation enzymes including several transferases) are present in the human lung and lung-derived cell lines, possibly contributing toin situactivation and inactivation of chemical toxicants. This paper describes the expression and localization of individual CYP‐forms in the lung.Interindividual differences in the expression of these enzymes may contribute to the risk of developing interstitial and other lung diseases initiated by agents that require metabolic activation.
Does vibrotactile biofeedback for postural control interfere with cognitive processes?
Authors: Schulleri Katrin H. , Feizian Farbod , Steinböck Martina , Lee Dongheui , Johannsen Leif 
Published: October 2024

Abstract
Background
Directional vibrotactile biofeedback for balance control can be instructed in the form of Repulsive (to move in the opposite direction of vibrations) or Attractive (to move in the direction of vibrations) stimulus encodings. However, which of these encodings is less cognitively demanding and poses less interference with high-level cognitive processes of conflict resolution remains unresolved.

Methods
In two between-subject studies with 30 (16 females) and 35 (23 females) healthy young adults, respectively, we investigated the cognitive load of Attractive and Repulsive vibrotactile biofeedback on 1) working memory (Study I) and 2) cognitive conflict resolution (Study II). Both studies also examined the effectiveness of both feedback stimulus encodings on balance control during quiet standing with eyes closed.

Results
Both Attractive and Repulsive vibrotactile biofeedback increased balance stability (reduced trunk sway variability) in both the working memory and the conflict resolution study (Study I and II, respectively) with a greater increase of stability for the Repulsive encoding during multitasking demanding cognitive conflict resolution (Study II). Cognitive costs, measured in terms of the Linear Integrated Speed-Accuracy Score (LISAS), were greater for the Attractive encoding during multitasking with working memory demands. When cognitive conflict resolution was required as a secondary cognitive task, both stimulus encodings increased cognitive costs equally.

Conclusions
The effects of instructed Repulsive and Attractive stimulus encodings for the response-related interpretation of vibrotactile biofeedback of body sway were contrasted with respect to cognitive processing demands and balance stabilisation benefits. Both encodings improved balance stability but at certain cognitive costs. Regarding interference with specific high-level cognitive processes, however, a distinction has to be made between both encodings. Repulsive feedback encoding seems to cause less cognitive costs on working memory load and slightly greater stabilisation when cognitive conflict resolution is required. These results are discussed in the context of the known benefits of avoidance actions on cognitive control.
Extraction of deterioration and analysis of vegetation impact effects on the south palace wall of Weiyang Palace
Authors: Gao Sheng , Tao Liang , Chen Fulong , Zhou Xiaochen , Shi Pilong , Yao Xun , Zhu Meng , Li Wenbo , Zhou Wei , Luo Yansong , Li Hongqiang , Chen Caiyan , Zhang Xinru 
Published: October 2024

Abstract
Weiyang Palace, the royal palace of the Western Han Dynasty, is a part of the Silk Roads: the Routes Network of Chang’an-Tianshan Corridor on the World Heritage list. The south palace wall of Weiyang Palace is a well-preserved earthen heritage site within the palace, but it is undergoing continuous deterioration due to the influence of vegetation and external environmental factors. This study pioneers the integration of high-resolution three-dimensional LiDAR scanning with multi-source data analysis, including unprecedented on-site botanical surveys, to explore the subtle effects of different vegetation types on the structural integrity of the south palace wall. Through contour line analysis and facade grid analysis, we extracted the deterioration locations of typical sections of the earthen heritage sites. And we classified the overlying vegetation types on the wall using an object-oriented classification algorithm. Our findings reveal a complex interaction between vegetation and earthen structures: paper mulberry exhibits protective qualities against erosion, while Ziziphus jujuba significantly exacerbates structural vulnerabilities. The methodologies applied in this study for extracting deterioration at earthen heritage sites and integrating multi-source spatial data can serve as a technical application model for monitoring and analyzing the driving forces of earthen heritage sites along the entire Silk Road network, thereby better guiding the conservation of earthen heritage sites.
Investigation of landslide triggers on Mount Oku, Cameroon, using Newmark displacement and cluster analysis
Authors: Djukem D. L. W. , Braun A. , Fan X. , Wouatong A. S. L. , Fernandez-Steeger T. M. , Havenith H. B. 
Published: October 2024

Abstract
Background
The landslide inventory of the western flank of Mount Oku, Cameroon, includes spreads or complex landslides, indicating sudden soil weakening, possibly due to seismic activity or heavy rainfall causing groundwater rise. These landslides were likely triggered between 2009 and 2018 based on the dates of the aerial imagery. Identifying triggers for past landslides remains a major unresolved issue in landslide science. However, understanding these triggers is crucial for accurately assessing future landslide hazards.

Methodology
In this paper, we investigate the possibility of earthquakes to precondition landslide development or reactivation during climatic events. By assuming a magnitude 5.2 earthquake, an epicenter of 10 km from this area, and different wetness conditions, the factor of safety (FS) and Newmark displacement (ND) models were calculated for shallow and deep-seated landslides with sliding depths of 3 and 7.5 m. Afterward, the relationship between FS, assumed ND, and observed landslides was analyzed in a cluster analysis, to derive patterns of climatically and seismically triggered landslides.

Results
The comparison of FS maps and FS values of the observed landslides revealed that especially for landslides at 7.5 m depth, most sites that are stable during dry conditions become instable under saturated conditions, indicating a climatic trigger. At 3 m depth, however, some landslide sites that are still marginally stable under saturated conditions, display relatively high ND values for the investigated hypothetical earthquake, indicating a possible seismic influence. In the cluster analysis, we clustered the observed landslides according to their distances to rivers and topographic ridges and obtained three clusters. Landslides from cluster 3 with 31% of the landslides display medium to high ND for the assumed earthquake, and were found near ridges and farther away from rivers, suggesting seismic triggering. Cluster 2, with 12% of landslides closer to rivers, suggested climatic origins. Thus, while climate is a critical landslide contributing factor, seismic events may also contribute, either by predisposing to landslides or by reactivating them alongside climatic factors. These results enable the establishment of more precise and effective landslide mitigating measures considering mostly rainfall but also earthquakes as possible triggers.
Comparison of outcomes for transjugular intrahepatic portosystemic shunt creation: Viatorr versus Fluency versus a bare stent/Fluency stent combination
Authors: Li Weizhi , Liu Mengying , Guan Sheng , Ding Pengxu , Yuan Jia , Zhao Yan , Li Peijie , Ma Fuquan , Xue Hui 
Published: October 2024

Abstract
Purpose
To compare clinical outcomes of transjugular intrahepatic portosystemic shunt (TIPS) created with the single covered-uncovered stent (Viatorr TIPS Endoprosthesis) versus covered stent (Fluency) versus a combination of covered and uncovered stent.

Materials and methods
From May 2016 and July 2019, a total of 180 liver cirrhosis patients with recurrent variceal bleeding underwent TIPS creation with single covered-uncovered stent (n = 63) or covered stent (n = 41) or a covered and uncovered stent combination (n = 76). Shunt dysfunction, rebleeding, overt hepatic encephalopathy and mortality was estimated using the Kaplan–Meier method and compared with the log-rank test.

Results
The difference of baseline characteristics among these three groups were not significant. The included patients had a median age of 51 years (IQR 43–61), and 101 (56.1%) were men. The 1-year and 2-year shunt dysfunction rates were 1.6% and 3.2% in the single covered-uncovered stent group, 7.3% and 7.3% in the covered stent group and 5.3% and 6.6% in the combination group, respectively. There was no significant difference among groups [Hazard Ratio (HR) (95%CI): 1 vs 2.29 (0.38 − 13.72) vs 2.10 (0.41 − 10.83); P = 0.913]. No significant differences in the incidence of all-cause rebleeding were observed between the groups at 1 year (Viatorr vs Fluency vs combination: 11.1% vs 17.1% vs 10.5%) as well as 2 years (15.9% vs 17.1% vs 11.8%), with the HR (95%CI) being 1 vs 1.27 (0.5—3.21) vs 0.74 (0.30–1.82); P = 0.475). The 1-year and 2-year incidence of overt hepatic encephalopathy were 30.2% and 30.2% in the single covered-uncovered stent group, 22.0% and 22.0% in the covered stent group and 25.0% and 25.0% in the combination group, respectively. However, there was no significant difference among these three groups (P = 0.402). In addition, there was no significant difference in the 1-year and 2-year mortality (6.3% and 7.9% vs. 4.9% and 9.8% vs. 6.6% and 9.2%, P = 0.606).

Conclusion
No significant difference was observed among different stent groups. Fluency covered stent and the generic bare stent/Fluency covered stent was not an unreasonable alternative to the Viatorr stent for TIPS creation.
Mapping and assessment of ecological vulnerability to wildfires in Europe
Authors: Arrogante-Funes Fátima , Mouillot Florent , Moreira Bruno , Aguado Inmaculada , Chuvieco Emilio 
Published: October 2024

AbstractBackgroundWildfires play a significant and complex role in ecosystems, influencing various aspects of their functioning and structure. These natural disturbances can positively and negatively impact ecosystems, shaping landscapes, nutrient cycles, biodiversity, and ecological processes. This study focuses on assessing and integrating the different factors that affect the ecological vulnerability to wildfires at the European scale. Our methodology follows three steps. Firstly, ecological values based on biological distinctiveness and conservation status were estimated to understand pre-fire conditions better. Secondly, we obtain vegetation’s coping capacity (or resistance) to the impacts of fire, considering the functional traits of plants and fire characteristics through a fire extreme scenario. Finally, post-fire recovery time was calculated by considering the species-specific recovery time, recovery starting time, growth recovery rate, and the environmental constraints affecting the optimal vegetation response. These three variables were combined using a dynamic model that assumed the change of value due to wildfires integrated throughout the recovery time.ResultsOur results indicate that the tundra biome emerges as the most ecologically vulnerable to fire, primarily due to its high ecological values and long recovery time, which outweigh its moderate coping capacity. Following closely, the temperate conifer forests also exhibit high vulnerability driven by their high recovery time, despite moderate ecological and coping capacity values. The boreal forests rank next, with moderate vulnerability due to their long recovery time and moderate coping capacity. The Mediterranean region, although having moderate ecological values and recovery time, shows a notable vulnerability influenced by lower coping capacity. The temperate broadleaf and mixed forests demonstrate relatively lower vulnerability owing to their balanced ecological values, moderate recovery time, and substantial coping capacity. Lastly, the temperate grasslands, savannas, and shrublands are the least vulnerable, benefiting from lower ecological values and the fastest recovery time, alongside moderate coping capacity, which collectively reduce their overall fire vulnerability.Furthermore, we found that coping capacity is the factor that most influenced ecological vulnerability to wildfires.ConclusionsThe study identifies key zones for European or national policies on fire prevention and post-wildfire regeneration. It offers insights into effective forest management and conservation policies, applicable to current conditions. Additionally, the methods can predict future ecological vulnerability to wildfires based on climatic and socio-economic trends.
Evaluation of blast-induced progressive collapse in steel structures with conventional braces, moment-resisting braces, and buckling-restrained braces using LS-DYNA software
Authors: Siah Mansour Amir , Hosseini Seyed Azim , Maleki Toulabi Hossein 
Published: October 2024

AbstractToday, considering the increased cases of terroristic operations, structural design engineers are starting to acknowledge blast-induced loads alongside other design parameters. Since a blast-induced load exhibits a much shorter period than the natural period of the structure, it is unlikely to induce general damages or stimulate the entire structure immediately after the loading, but rather local damages in individual structural elements are the common form of damage. These local damages, however, can set the scene for the gradual failure of the structure. The present study on structures with moment-resisting frames, buckling-restrained braces (BRBs), and conventional steel braces was conducted through an alternative load path (ALP, also known as column elimination) and exact modeling of the blast on the steel frames was undertaken using LS-DYNA software. In this work, the behavior of three five-story steel frames under a blast-induced load of 100 kg TNT equivalent at a distance of 10 m from the structural columns for a period of 100 ms was investigated. Results of analyzing the blast-induced effect on the frames showed that the frame equipped with buckling-restrained braces (BRB) exhibited improved overall peak displacement across the entire frame, peak induced velocity, and peak induced acceleration by 30%, 30%, and 46%, respectively, as compared to other steel frames exposed to blast loads.
Workplace bullying of psychiatric trainees: systematic review
Authors: Maguire Paul A. , Wilkes Fiona A. , Allison Stephen , Bastiampillai Tarun , Brazel Matt , Looi Jeffrey C. L. 
Published: October 2024

Aims and method
We aimed to systematically review primary studies exploring workplace bullying of psychiatric trainees, including rates, forms of bullying, perpetrators and help-seeking. We searched Ovid MEDLINE, PubMed, CINAHL, PsycINFO and Embase using PRISMA guidelines. The inclusion criterion was primary research papers surveying or interviewing psychiatry trainees with respect to perceived workplace bullying by staff members. Exclusion criteria were secondary research papers and papers whose only focus was bullying by patients or carers.

Results
Substantial levels of bullying were reported in all five included studies. Perpetrators were often reported to be consultants, managers or peers. Most trainees did not obtain help for bullying and harassment. All of the studies had methodological limitations.

Clinical implications
Concerning levels of workplace bullying have been reported by psychiatric trainees in the UK and abroad. Further methodologically robust studies are required to evaluate the current levels and nature of this bullying, and strategies to prevent and manage it.