bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mechanoluminescence and photoluminescence properties of Eu3+‐activated SrGa2O4 phosphors
Authors: Vasanthi Baby , Gopakumar Narayana Panickar , Anjana Prabhakaran Sreekumari , Nair Girija 
Published: September 2023

AbstractRed‐emitting Eu3+ activated SrGa2O4 phosphors were synthesized using a conventional solid‐state reaction method. The structural, optical, and luminescence properties were systematically investigated. The synthesized phosphors are single phase with a monoclinic structure. There are no significant changes in the phase and the crystal structure of the host matrix after incorporating Eu3+ ions. The undoped and Eu3+ doped SrGa2O4 phosphors exhibited good mechanoluminescence (ML) emission without any irradiation with ultraviolet (UV) or gamma rays. Eu3+‐activated SrGa2O4 phosphors have prominent red emission attributed to 5D0 → 7F2 forced electric dipole transition excited at 395 nm. The colour coordinates and purity of the SrGa2O4: 0.08 Eu3+ phosphor were calculated to be (0.6102, 0.3810) and 97.6%, respectively. The quantum efficiency is 12.68%, and was better than that of commercially available red phosphors. The ML and photoluminescence studies revealed that the synthesized phosphors can act as potential candidates for stress sensors, UV or near‐UV light‐emitting diodes (NUV LEDs) and components of phosphor‐converted white light‐emitting diode (pc‐WLED) applications.
The retinacular ligaments of the digital extensor expansion revisited: An anatomical and biomechanical study
Authors: Borgström Tomas , Dahlin Lars B. , Tranum‐Jensen Jørgen 
Published: September 2023

AbstractOur aim was to clarify the anatomy and function of the retinacular ligaments. Forty‐eight fingers were dissected and the thickness of the oblique retinacular ligament (ORL) was graded. In four fingers, the motion in the proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints was subjected to an in‐depth analysis before and after sectioning of either the lateral bands (LB) or the ORLs. The function of the ORLs in restricting flexion of the DIP joint with full extension of the PIP joint was measured in 10 fingers. An ORL could be identified on both sides in all 48 fingers. The distribution of the insertion on the proximal phalanx was 7/96 (7%) in the distal third, 70/96 (73%) in the middle third and 19/96 (20%) in the proximal third. Among the specimens, 29% were graded as having a strong bundle of fibers, 51% as having well‐defined and regular fibers and 20% as having thin and sparse fibers. With the PIP joint extended, there was a statistically significant increase in flexion of the DIP joint after the ORL was cut. After the LB was sectioned, the ORL was able to extend the DIP joint with an extension lag of 10–22°. Cutting the ORL did not affect the ability to extend that joint. We conclude that the retinacular ligaments are consistent. Their major role is not connected with finger movement, but to provide stabilizing links between the PIP and DIP joints. They are active in not only specific, uncommon finger positions but also in ordinary use of the fingers.
Health‐related quality of life and survival outcomes for patients with major depressive disorder and anxiety: A longitudinal study in pancreatic ductal adenocarcinoma
Authors: Ji Yuchen , Chen Haoda , Yang Yuxuan , Zhou Yiran , Li Hongzhe , Jin Haiyan , Xie Junjie , Shen Baiyong 
Published: September 2023

AbstractBackgroundMajor depressive disorder (MDD) and anxiety were recognized in treating pancreatic ductal adenocarcinoma (PDAC). This longitudinal study identified risk factors for MDD and anxiety and established associations with patients' quality of life (QoL) and survival outcomes.Materials and MethodsWe used PHQ‐9 and GAD‐7 questionnaires to diagnose MDD and anxiety in PDAC patients between October 2021 and March 2022 at a Chinese center. Characteristics and clinical data were analyzed for risk factors and EORTC QLQ‐C30 questionnaire was administered for QoL before the first chemotherapy. Furthermore, chemotherapy compliance and 1‐year survival were compared during follow‐up.ResultsMDD and anxiety occurred in 51.8% and 44.7% of 114 patients over the half‐year period. Employment at work (odds ratio [OR]: 5.514, p = 0.001; OR: 3.420, p = 0.011) was an independent risk factor, while radical surgery (OR: 0.342, p = 0.034; OR: 0.238, p = 0.004) was a protective factor. Several aspects of decreased QoL were discovered after their onsets. Higher incidences of physical disorders (p = 0.004; p < 0.001), mental disorders (p = 0.001; p < 0.001), anti‐therapy emotions (p = 0.002; 0.001), and chemotherapy suspensions (p = 0.001; p = 0.043) were observed. Furthermore, the 1‐year mortalities for all patients and those receiving radical surgeries were correlated with MDD (p = 0.007; 0.036) and anxiety (p = 0.010; 0.031).ConclusionsMDD and anxiety are common in PDAC patients and correlated with poor QoL and survivals. Therefore, appropriate mental management is required in future.
Risk of cardiovascular disease in cancer survivors: A cohort study of 446,384 New Zealand primary care patients
Authors: Tawfiq Essa , Pylypchuk Romana , Elwood J. Mark , McKeage Mark , Wells Sue , Selak Vanessa 
Published: September 2023

AbstractBackgroundGiven advances in the management of cancer, it is increasingly important for clinicians to appropriately manage the risk of cardiovascular disease (CVD) among cancer survivors. It is unclear whether CVD risk is increased among cancer survivors overall, and there is inconsistency in evidence to date about CVD incidence and mortality by cancer type.MethodsPatients aged 30‐74 years entered an open cohort study at the time of first CVD risk assessment, between 2004 and 2018, in primary care in New Zealand. Patients with established CVD or cancer within 2 years prior to study entry were excluded. Cancer diagnosis (1995–2016) was determined from a national cancer registry. Cause‐specific hazard models were used to examine the association between history of cancer and two outcomes: (1) CVD‐related hospitalization and/or death and (2) CVD death.ResultsThe study included 446,384 patients, of whom 14,263 (3.2%) were cancer survivors. Risk of CVD hospitalization and/or death was increased among cancer survivors compared with patients without cancer at cohort entry (multivariable‐adjusted hazard ratio, mHR, 1.11, 95% CI 1.05‐1.18), more so for CVD death (1.31, 1.14‐1.52). Risk of CVD hospitalization and/or death was increased in patients with myeloma (2.66, 1.60‐4.42), lung cancer (2.19, 1.48‐3.24) and non‐Hodgkin lymphoma (1.90, 1.42‐2.54), but not for some cancers (e.g., colorectal, 0.87, 0.71‐1.06). Risk of CVD death was increased in several cancer types including melanoma (1.73, 1.25‐2.38) and breast cancer (1.56, 1.16‐2.11).ConclusionCVD risk management needs to be prioritized among cancer survivors overall, and particularly in those with myeloma, lung cancer and non‐Hodgkin lymphoma given consistent evidence of increased risk.
Spatial Variation in Yield, Chemical Composition, and Phytotoxic Activity ofCistus ladaniferEssential Oils
Authors: Pérez‐Izquierdo Carlos , Jordán Bueso María Josefa , del Carmen Rodríguez‐Molina María , Pulido Fernando 
Published: September 2023

AbstractCistus ladaniferL. (rockrose) is a widespread shrub species of the Mediterranean region with products highly valued by the perfume and cosmetics industry. In this research, the variability in yield, chemical composition and phytotoxic activity ofC. ladaniferessential oils collected from 12 plots belonging to four natural populations and settled on two different types of edaphic substrates were evaluated. The essential oils were analyzed by GC‐MS. The essential oil content ranged from 0.19 to 0.42 mL/100 g. The volatile profiles were found to be rich in oxygenated sesquiterpenes and oxygenated monoterpenes. PCA analysis clustered the samples into two groups that were mainly attributed to the type of substrate on which the plants grow. Furthermore, CCA and correlation analysis revealed that soil organic matter was the most effective edaphoclimatic driver accounting for these high levels of variation in essential oil yield and composition. Finally,C. ladaniferessential oils showed strong phytotoxic activity onR. sativusseedlings, indicating its potential use as a natural bio‐herbicide in agriculture. The results showed that the effect associated to local edaphoclimatic conditions not only impacted on the quality and quantity of the essential oil, but also on the industrial uses derived from its biological activities.
Glycolipids from Sargassum filipendula, a Natural Alternative for Overcoming ABC Transporter‐Mediated MDR in Cancer
Authors: Muñoz‐Losada Kelly , Da Costa Kelli Monteiro , Muñoz‐Castiblanco Tatiana , Mejía‐Giraldo Juan Camilo , Previato José Osvaldo , Mendonça‐Previato Lucia , Puertas‐Mejía Miguel Ángel 
Published: September 2023

AbstractChemotherapy is a widely used strategy to treat cancer, a disease that causes millions of deaths each year. However, its efficacy is reduced by the overexpression of ABC transporters, which are proteins that expel the drugs used in chemotherapy and involved in the multidrug resistance (MDR). Glycolipids have been identified as potential inhibitors of ABC transporters. Algae of the genus Sargassum contain high levels of glycolipids, making them a promising therapeutic alternative against the MDR phenotype. Sargassum filipendula glycolipids were obtained by exhaustive maceration with chloroform/methanol, purified by column and thin layer chromatography, and then characterized by FTIR, NMR, and LC‐MS. Cell viability by PI labeling and inhibition of ABC transporters were analyzed by flow cytometry. Assessment of resistance reversal was determined by MTT assay. Ten sulfoquinovosylglycerol‐type compounds were found, and six of them are reported for the first time. In particular, moiety 4 (GL‐4) showed strong and moderate inhibitory activity against ABCC1 and ABCB1 transporters respectively. Treatment of GL‐4 in combination with the antineoplastic drug vincristine sensitized Lucena‐1 cell model to drug and reversed the MDR phenotype. This is the first report of glycolipids isolated from S. filipendula capable of inhibiting ABC transporters and thus overcoming acquired drug resistance.
A Case of Convergent Evolution: The Bacterial Sesquiterpene Synthase for 1‐epi‐Cubenol from Nonomuraea coxensis
Authors: Dickschat Jeroen S. , Quan Zhiyang , Schnakenburg Gregor 
Published: September 2023

AbstractA terpene synthase from Nonomuraea coxensis was identified as (+)‐1‐epi‐cubenol synthase. The enzyme is phylogenetically unrelated to the known enzyme of the same function that is widespread in streptomycetes. Isotopic labelling experiments were performed to unambiguously assign the NMR data and to investigate hydrogen migrations during terpene cyclisations. Epoxidations of (+)‐1‐epi‐cubenol and of the plant derived compounds (−)‐cubenol and (−)‐1‐epi‐cubenol confirmed the structure of a natural product isolated from the brown alga Dictyopteris divaricata and allowed to conclude on its absolute configuration. The crystal structures of the epoxides from (+)‐ and (−)‐1‐epi‐cubenol and the acid catalysed conversion into an isomeric ketone are reported.
Concept to assess the performance on degrading concrete structures components
Authors: Binder Fritz , Burtscher Stefan L. 
Published: September 2023

AbstractThe infrastructure of ASFiNAG is mainly built from reinforced and prestressed concrete, which despite all regular maintenance measures, is subject to ageing and degradation. The major degradation process is chloride attack, followed by carbonation, which both lead to corrosion of the reinforcing steel. A new method, which represents a significant improvement on previous assessments, is used in this paper to analyze chlorides in concrete. The paper also introduces a new concept for the durability assessment by using objective indicators, like chloride content, electrical resistivity, and corrosion potential. For objectivity and a reliable determination of the condition state, an overall performance index derived from the condition indices using an analytic hierarchy process (AHP) is adapted. The model is applied to excellent and dense data from a monitoring system and investigations taken from reinforced concrete components beside a motorway.
Sustainability assessment of bridge structures in the operation phase based on a digital twin
Authors: Jäkel Jan‐Iwo , Kaus Michelle , Klemt‐Albert Katharina 
Published: September 2023

AbstractThere are about 65,000 bridge structures in the infrastructure network of the Federal Republic of Germany. Due to the long operating phase of bridges, they have an influence on sustainability. To evaluate the sustainability of bridges in the operational phase, digital building models can serve as a consistent and structured database to increase the efficiency and transparency.In this article, an innovative evaluation system for measuring and assessing the sustainability of a bridge structure in the operational phase based on a digital bridge twin is developed. First, the workflow is presented in a process model and the necessary requirements for the digital twin of the bridge structure are defined. In addition, the semi‐automatic sustainability assessment system is described and the linkage via an interoperable interface to the digital twin is designed. The approach is tested and validated using a real demonstrator. The result of the paper shows an approach to use digital twins for a novel and semi‐automatic sustainability assessment in the operation of bridge structures.
Structural evaluation by reverse engineering with 3D laser scanner
Authors: Jang Arum , Jeong Sanggi , Park Min Jae , Ju Young K. 
Published: September 2023

AbstractIn the modern era, there has been a surge of interest in researching the integration of high‐tech in construction. Many different technologies are currently being explored as potential solutions for future construction projects. BIM technology using high‐tech equipment is spotlighted as promising for future construction projects. As structures age, there is a growing demand for safety inspections. However, current safety inspection methods are traditional and rely heavily on the subjective opinions of workers, leaving much room for error. To address this issue, there is a need to develop existing maintenance technology. Recently, there has been a significant increase in research on building safety inspections using 3D laser scanners, which use LIDAR technology to allow for precise and rapid acquisition of building information. This technology even allows for reverse engineering through point cloud data modeling. In light of this, a new evaluation system for building stability using 3D technology is proposed in this study, which aims to revolutionize the way that safety inspections are carried out.
Life cycle management for service life extension of structures
Authors: Strauss Alfred , Zimmermann Thomas , Bergmeister Konrad 
Published: September 2023

AbstractA very important task to improve the sustainability of existing structures is to extend their service life especially in terms of resource conservation and sustainability. Therefore, the assessment and the required safety level of an existing structure are of particular importance (condition monitoring). This contribution focusses on how data from established inspection and monitoring approaches are essential and examines the more advanced, additional approaches currently under review. Both the load‐bearing capacity and the serviceability must be guaranteed over a certain period of time at or above the required safety level. The serviceability of a structure can be measured by performance indicators. It is examined how the definition and measurement of performance indicators in conjunction with a well‐designed life cycle management action can be used to extend the service life while ensuring safety levels.
Uncertainty quantification of satellite InSAR‐monitoring of bridges: a case study
Authors: Tonelli Daniel , Valentini Andrea , Rocca Alfredo , Zorzi Stefano , Lotti Alessandro , Zonta Daniele 
Published: September 2023

AbstractTraditional structural health monitoring (SHM) systems provide accurate and objective information to assess the condition state of bridges; however, they are expensive and typically installed only on strategic bridges. Innovative technologies offer a potential solution. Interferometric Synthetic Aperture Radar (InSAR) takes multiple satellite radar images of a given area over time and extracts displacement time series of reflective point targets on the ground. The literature on InSAR‐based SHM of bridges lacks systematic studies aiming at quantifying the metrological uncertainty of the displacements measured. Furthermore, the topographic context and the magnitude of displacements of these structures between successive satellite passes significantly impact the uncertainty of results. This paper aims to evaluate the effectiveness of InSAR‐based SHM of bridges by comparing displacement time series obtained from InSAR with those from an on‐site topographic system. Displacements are measured from a prestressed concrete bridge in the Alpine region. Moreover, this study models the deformed shape of the bridge based on satellite and on‐site measurements and compares the results to determine whether bridge distortions can be reconstructed using satellite data alone.
Cementitious materials with biological additive for enhanced durability in marine environment
Authors: Iovane Giacomo , Kim Hayeon , Tizzano Domenico , Mazzolani Federico M. , Landolfo Raffaele , Park Solmoi , Faggiano Beatrice , Lee H.K. 
Published: September 2023

AbstractConcrete structures suffer from cracking that leads to deterioration and shortening of service life. This is very critical for underwater structures, i.e., immersed bridge piles, immersed tunnel or submerged floating tunnels, which are consistently susceptible to ingress of harmful ions (chloride, sulphate and carbonate ions). Autonomous healing of concrete cracks can be beneficial to assure durability performance during the service life. In this context the paper presents a preliminary experimental activity carried out to study the self‐healing capacity of cementitious composites in marine environment. Four series of paste samples are prepared to evaluate the autonomous healing capabilities, achieved through biotic and abiotic additions. The experimental campaign is articulated in four phases, such as: specimen preparation; tests in compression; immersion in water; crack healing evaluation. The specimen performances are examined and compared in terms of mechanical strength and crack width healing over time. Results highlight the efficiency of the technology for crack healing.
Data based reliability and risk based assessment for service life extension of structures
Authors: Strauss Alfred , Zimmermann Thomas , Bergmeister Konrad 
Published: September 2023

AbstractOne very important contribution to improving the sustainability of existing structures is to extend their service life. This also makes a valuable contribution to resource conservation. Therefore, the assessment and the required safety level of an existing structure are of particular importance. This is one of two contributions which together summarize the past, current and developing approaches to extending service life while ensuring safety. Herein it is presented the reasons why many existing structures no longer meet structural safety requirements. Both the loadbearing capacity and the usability must be guaranteed over a certain period of time at or above a certain safety level. It is examined how these, and their future development, can be reliably assessed by collecting and analysing key data and how this can be used to extend the service life of structures.
Validation of the digital inspection of bridges
Authors: Kreslin Maja , Triller Petra , Eržen Vid , Žnidarič Aleš , Slokan Tomaž , Anžlin Andrej 
Published: September 2023

AbstractThe paper presents the main results of the development project “Digitalization of monitoring the condition of bridge structures on highways and expressways in the Republic of Slovenia”. Within the project, test cases of the digitalized inspection method were carried out on three different concrete bridges. To enable validation of digitalization, a traditional and digital inspections for all three bridges have been conducted, focusing on the three important types of reinforced concrete bridges damages: delamination, cracks and reinforcement corrosion. The comparison of the results has shown that digital inspection can already strongly support bridge inspections, especially during detailed inspections, as it can, to some extent, completely replace the time‐consuming damage mapping. In addition, the analyses show that, already today, digital inspection is often economically justifiable.
Numerical Investigation on Buckling Response of Cylindrical Steel Storage Tanks Under Seismic Excitation
Authors: Ullah Shafqat , Mamaghani Iraj H.P. 
Published: September 2023

AbstractThis paper presents the buckling response and vibration characteristic of the cylindrical steel liquid storage tanks filled with water when subjected to strong earthquake excitations. Finite element analysis (FEA) is performed by using ABAQUS software. The geometrically perfect tanks with different R/t and H/R ratios are considered for modal and linear seismic analysis. The modeling method, appropriate element type, and the necessary number of elements for numerical analysis are recommended. Field observations during past earthquakes and published experimental results are used to substantiate the accuracy of employed FEA. The accuracy of the current design guidelines is assessed based on the extensive parametric study. According to the results of the parametric study of the perfect tanks, the buckling strength decreases significantly as the radius‐to‐thickness ratio (R/t) increases. Furthermore, it decreases slightly as the height‐to‐diameter ratio (H/R) increases.
A full‐scale case study of vibration‐based structural health monitoring of bridges: prospects and open challenges
Authors: Reuland Yves , Garcia‐Ramonda Larisa , Martakis Panagiotis , Bogoevska Simona , Chatzi Eleni 
Published: September 2023

AbstractThe implementation of Structural Health Monitoring (SHM) offers the prospect for sustainable and safe service‐life extension of existing bridges, a large portion of which is approaching the end of their nominal life. Many SHM frameworks for civil infrastructure address timely damage detection and identification. However, the scarcity of case studies on real damaged bridges hinders the generalized application of SHM in practice. In this contribution, monitoring data from a four‐day campaign on the Ponte‐Moesa bridge, a three‐span concrete box‐girder bridge, is presented as a benchmark for data‐driven damage diagnosis schemes. The monitoring data, covering accelerations from ambient and forced vibrations, contains the reference state after concluding the service life along with several gradually increasing damage states, including drilling holes and cutting reinforcement rebars and prestressed cables. The potential of damage‐sensitive features to identify damage is presented and the uncertainties, resulting from the environmental and operational conditions and sensor malfunctioning, pertaining to robust damage detection are discussed. Drawing from real bridge monitoring data, a range of prospects and open challenges of vibration‐based SHM for bridges are reviewed.