Journal of Cultural Heritage最新文献

{"title":"3D damage imaging of Carrara marble sculptures by acoustic tomography coupled to photogrammetry","authors":"Marie-Laure Chavazas ,&nbsp;Jérémie Berthonneau ,&nbsp;Cédric Payan ,&nbsp;Éric Debieu ,&nbsp;Philippe Bromblet","doi":"10.1016/j.culher.2025.03.009","DOIUrl":"10.1016/j.culher.2025.03.009","url":null,"abstract":"<div><div>Marble is known for its sensitivity to weathering. Therefore, marble sculptures can develop superficial and inner alterations when subjected to weather conditions. Addressing a complete condition report of these alterations is essential for defining the conservation conditions and planning restoration. However, while superficial alterations can be reported by simple visual inspections, the identification of inner defects necessitate more complex inspection methods. Besides, the evaluation of the conservation state of cultural heritage artefacts requires the use of non-destructive techniques. This research thus aims at investigating the influence of exposure to weather conditions on the degradation state of two Carrara marble sculptures from the Roman theater of Arles, France, as well as at answering specific conservation issues coming from curators. To do so, acoustic tomography coupled to photogrammetry was carried out to document the superficial state as well as to probe the inner state of the objects under study. A new method is tested to locate the transducer positions (without any sticky material): the 3D photogrammetric models of the sculptures were projected directly onto them to mark the transducer positions immediately on the model. The 3D models were then used to measure the distances between each emitter and receiver position. This approach also allows saving the transducer positions on the 3D model, which provides a digital record of measurement positions in case of additional future measurements. Overall, the degradation state of the sculptures studied coincides with their degree of exposure to weather conditions during Roman times, highlighting marble sensitivity to climatic conditions. Besides, depth profiles were estimated for visible cracks with the time-of-flight diffraction method and showed that the most worrying crack had not propagated inside the sculpture as much as curators feared, pointing out that acoustic techniques can be support tools for conservators.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 215-224"},"PeriodicalIF":3.5,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lactic acid-based compounds as green alternative solvents for cultural heritage: Application on canvas painting restoration","authors":"Massimo Melchiorre ,&nbsp;Chiara Melchiorre ,&nbsp;Marisa Moracci ,&nbsp;Patrizia Irena Somma ,&nbsp;Marta Markiewicz ,&nbsp;Stefan Stolte ,&nbsp;Pierfrancesco Cerruti ,&nbsp;Francesco Ruffo ,&nbsp;Andrea Carpentieri","doi":"10.1016/j.culher.2025.03.008","DOIUrl":"10.1016/j.culher.2025.03.008","url":null,"abstract":"<div><div>In the restoration of canvas paintings, solvent mixtures derived from non-renewable sources are commonly employed (e.g. acetone, ethanol, and isooctane), which not only contribute to pollution but also pose potential health-risks to the operators. This research aims to introduce alternative biobased and eco-friendly solvents as possible replacements for common solvents used in artifact restoration. 5-methyl-1,3-dioxolane-4-one (LA-H,H), 2,2,5-trimethyl-1,3-dioxolane-4-one (LA-Me,Me), ethyl lactate (EL), and 2-ethylhexyl pelargonate (ARGO) were selected as biobased solvents candidates. They can be produced from biomass-derived synthons, including lactic acid (LA), which is obtained by carbohydrate fermentation, and pelargonic acid (PA), which is obtained by the oxidative cleavage of oleic acid and high-oleic vegetable oils. To rationalize their solvent properties, their Hansen parameters were used (dispersion δ_d, polarity δ_p, hydrogen-bonding δ_hb), enabling their placement within the Teas Triangle. Lactic acid-derived solvents, LA-H,H and LA-Me,Me, were prepared in multigram at lab-scale, and characterized using nuclear magnetic resonance spectroscopy (NMR) and gas chromatography-mass spectrometry (GC-MS). Their solvent abilities were tested by their application to <em>ad-hoc</em> prepared specimens with different film-forming substances. These tests were performed with both fresh and artificially-aged samples. Their evaporation behavior was studied through thermal gravimetric analysis (TGA) while their ready biodegradability was investigated according to OECD guideline 301F as a key property influencing environmental impact. These solvent mixtures were then employed for the removal of oxidized terpenoid varnish from a 17^th-century canvas painting, demonstrating their potential as green alternatives for restoration practices.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 206-214"},"PeriodicalIF":3.5,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The potential of applying soft capping approach on earthen and masonry built heritage","authors":"Xinyu Jiang ,&nbsp;Sok Yee Yeo ,&nbsp;Barbara Galli","doi":"10.1016/j.culher.2025.03.007","DOIUrl":"10.1016/j.culher.2025.03.007","url":null,"abstract":"<div><div>Cultural heritage sites worldwide are increasingly threatened by deterioration due to natural erosion and the intensified effects of climate change. Soft capping, an environmentally friendly approach for protecting built heritage using plants, has been underexplored from a biological perspective. This article aims to review studies on soft capping applied to earthen and masonry heritage from the 1980s to the present. The findings categorise soft capping into four types: Phototropic biofilms- and Lichen-capping, Bryophyte-capping, Spermatophyte-capping and Mixed plants-capping. The selection of soft capping type depends on the site's microclimates, building materials and the structure's geometry. Soft capping helps to regulate the microclimates of affected structures, slowing deterioration and enhancing their long-term sustainability. Additionally, it offers flexible adaptation to individual cases for optimal protection. Despite the considerable benefits of soft capping, further research and expanded databases are necessary to better understand factors such as type selection, composition, protective efficacy and limitations. This knowledge will enable more informed conservation strategies for applying soft capping to heritage sites in the future.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 158-171"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid discrimination modeling of common wine and food residues in archaeology based on machine learning and infrared spectroscopy","authors":"Nan Xiao ,&nbsp;Xuekai Qi ,&nbsp;Bin Wang ,&nbsp;He Huang ,&nbsp;Rui Wen","doi":"10.1016/j.culher.2025.03.005","DOIUrl":"10.1016/j.culher.2025.03.005","url":null,"abstract":"<div><div>The study of wine and food residues in archaeology offers crucial insights into ancient diets and brewing techniques. Traditional detection methods, however, are often complex and time-consuming. Bridging the gap between excavation sites and laboratories is vital for enhancing real-time analysis and artifact preservation. This paper presents a non-targeted spectral fingerprinting method that integrates simulated experiments, Fourier Transform Infrared Spectroscopy (FTIR), and machine learning algorithms for the rapid identification of food and wine residues in archaeological excavations. Infrared spectral data were collected from 23 modern food and liquor samples subjected to simulated aging. A comprehensive preprocessing protocol was developed, including smoothing, baseline correction, and normalization, to reduce unwanted variability and enhance data quality. Eight spectral preprocessing methods were assessed, including standard normal variate (SNV), multiple scatter correction (MSC), and various derivative techniques. The final model, which employed SNV preprocessing, demonstrated superior prediction accuracy and robustness. Six common machine learning algorithms—linear discriminant analysis (LDA), decision tree classification (DTC), support vector machine (SVM), random forest (RF), k-nearest neighbor (KNN), and backpropagation neural network (BPNN)—were utilized for modeling and comparison. Results indicated that the RF, KNN, and BPNN models were particularly effective, achieving prediction accuracies near 100 %. In external validation with real archaeological samples and those simulated to be aged for nearly ten years, the BPNN model achieved a confidence estimate of 99 % for validating archaeological wine residue samples, while other models provided confidence estimates above 70 %. However, due to the significant loss of characteristic substances from prolonged aging, the current model has difficulty distinguishing specific wine or food types. Future research should focus on improving model portability for on-site screening and expanding the database of simulated aged residues through multi-platform collaboration.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 195-205"},"PeriodicalIF":3.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the durability of historic brick masonry: The role of diammonium phosphate and chitosan in reducing salt-induced damage","authors":"Clelia Marrone,&nbsp;Elisa Franzoni","doi":"10.1016/j.culher.2025.03.004","DOIUrl":"10.1016/j.culher.2025.03.004","url":null,"abstract":"<div><div>Salt crystallization represents a serious threat to historic architecture worldwide, causing structural and aesthetic damage due to the accumulation of salts in porous building materials, such as bricks. Historic masonry is particularly vulnerable to this type of damage due to the complex interactions between salts and its porous matrix. Salt crystallization modifiers have proven to be valid candidates in reducing the detrimental effects of salt crystallization within porous materials, thereby prolonging the lifespan of historic structures. In this research, chitosan was selected as crystallization inhibitor, considering his remarkable properties in terms of sustainability and cost-effectiveness. Applied to brick samples in combination with a phosphatic treatment based on diammonium phosphate, it resulted an encouraging new solution to reduce salt crystallization damage without affecting the material's properties and hence showing a good compatibility, although further research is needed to assess the effectiveness of the chitosan-based treatments for in-the-field applications.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 150-157"},"PeriodicalIF":3.5,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosting the consolidation and antibacterial dual-functionalities of Ca(OH)2 mural restoration materials via supporting Ag/g-C3N4 on hexagonal nano-Ca(OH)2","authors":"Ting Zhao ,&nbsp;Yu-Tong Kou ,&nbsp;Nian-Chen Ding ,&nbsp;Jian-Feng Zhu ,&nbsp;Wen-Zong Yang ,&nbsp;Yi Liu ,&nbsp;Yi Qin","doi":"10.1016/j.culher.2025.03.006","DOIUrl":"10.1016/j.culher.2025.03.006","url":null,"abstract":"<div><div>Ca(OH)₂ is a well-known commercial inorganic consolidation material, which is used to restore tomb murals. Herein, nano-Ca(OH)₂ with a high specific surface grown by molecular confinement method was supported with photocatalyst Ag/g-C₃N₄ to form a highly permeable Ag/g-C₃N₄/Ca(OH)₂, which achieved consolidation and antibacterial properties of simulated murals. Ag/g-C₃N₄/Ca(OH)₂ forms a unique gradient permeation structure on tomb murals. In this structure, the Ca(OH)₂ nanomaterial penetrates deeply, while the Ag/g-C₃N₄-rich layers remain on the mural surfaces. The Ag/g-C₃N₄-rich layer effectively protects the murals from bacteria. The results indicate that the Ag/g-C₃N₄/Ca(OH)₂ nanocomposite significantly enhances the mural's strength and antibacterial properties when the silver ion doping content is 0.24. Its strengthening performance is 2 times higher than commercial Ca(OH)₂, while its antibacterial rate reaches 58.38 %, primarily due to its high permeability and stability. Further aging experiments indicate that the synthesized Ag_0.24/g-C₃N₄/Ca(OH)₂ nanocomposite has no adverse effect on the mural's pigment layer. This work offers a new method for developing effective materials to protect tomb murals.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 172-184"},"PeriodicalIF":3.5,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of combined increase in temperature and CO2 concentration on the weathering activity of phototrophic organisms inhabiting granitic rocks and its implications in terms of cultural heritage conservation","authors":"Elsa Fuentes ,&nbsp;Diana Pérez-Velón ,&nbsp;Beatriz Prieto","doi":"10.1016/j.culher.2025.03.003","DOIUrl":"10.1016/j.culher.2025.03.003","url":null,"abstract":"<div><div>The increase in CO₂ concentration and temperature observed in the current context of climate change may cause changes in the behavior of phototrophic organisms colonising stone cultural heritage, leading to undesirable changes in terms of biodeterioration. In this study, we examined the combined effect of both parameters (18°C or 24°C and ambient or high CO₂ concentration) on the physiological state of organisms and on granite weathering through experiments involving a green alga (<em>Bracteacococcus minor</em>) and a cyanobacterium (<em>Synechocystis</em> sp. PCC 6803) grown in medium containing granite. The results revealed an increase in the green algae population relative to the cyanobacteria at lower temperature and a reduction in biomass and efficiency during the early stages of culture development at the higher temperature. In addition, although rock weathering was favoured by modification of the solution equilibrium through cation uptake by the organisms no significant differences in response to environmental conditions were detected.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 185-194"},"PeriodicalIF":3.5,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary evaluation of green terpolymer of nano poly (methyl methacrylate/dimethylaminoethyl methacrylate/acrylamide) for the consolidation of bone artifacts","authors":"Gomaa Abdel-Maksoud ,&nbsp;Asmaa M. Fahim ,&nbsp;Rokaya A. Sobh","doi":"10.1016/j.culher.2025.03.002","DOIUrl":"10.1016/j.culher.2025.03.002","url":null,"abstract":"<div><div>Weakness and fragility are the main aspects of damage to archaeological bones in excavation areas, museums and storage facilities caused by improper conditions. The objective of the study is to assess the efficacy of nano-terpolymers composed of methyl methacrylate, dimethylaminoethyl methacrylate, and acrylamide, which have been synthesized under environmentally friendly conditions, for the consolidation of bone artifacts. To achieve this study, samples of modern sheep animal bones were prepared and subjected to thermal aging. Subsequently, these samples were treated with the prepared terpolymer at different concentrations. The treated samples were then thermally aged to test the efficiency of the material. The characteristics of the prepared terpolymer were measured using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and thermo gravimetric analysis (TAG). The bone samples treated with different concentrations of the prepared terpolymer were analyzed before and after heat aging using modeling, different microscopes and measurement of color change. The findings from the majority of investigation conducted in this study suggest that the ideal concentration of the polymer for the treatment of fragile and weak bones is 4 % followed by 2 % being the next most effective concentration. The 6 % concentration should be disregarded, as it produced unfavorable outcomes from a conservation perspective. Moreover, the density functional theory (DFT) investigation of the synthesized terpolymer with bone structure showed the electrostatic intramolecular hydrogen bond interaction with amino acids of collagen and calcium hydroxyapatite which gave it stability.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 139-149"},"PeriodicalIF":3.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study on the deterioration behavior and manufacturing techniques of reverse mirror painting from the hall of mental cultivation, palace museum","authors":"Ming Guan ,&nbsp;Peiquan Duan ,&nbsp;Yao Chen ,&nbsp;Tianshu Gong ,&nbsp;Xiaojing Kang ,&nbsp;Jingjing Chang ,&nbsp;Zhikang Hu ,&nbsp;Xinyi Wang ,&nbsp;Liang Qu","doi":"10.1016/j.culher.2025.02.016","DOIUrl":"10.1016/j.culher.2025.02.016","url":null,"abstract":"<div><div>Glass painting was a popular art form in both China and Europe during the 17th and 18th centuries, with reverse mirror painting being one of its most iconic examples. Typically crafted on tin amalgam mirror, reverse mirror paintings were both rare and valuable, though their fragility and instability of the tin amalgam coating made them difficult to preserve. Despite their historical significance, most research has focused primarily on the artistic characteristics and origins of these works, with limited attention given to the assessment of their condition, deterioration mechanisms, and manufacturing techniques. This study presents a comprehensive scientific analysis of a reverse mirror painting from the Hall of Mental Cultivation at the Palace Museum. Various methods were employed, including optical microscopy, field emission scanning electron microscopy with energy-dispersive spectrometry, macroscopic X-ray fluorescence spectrometry, microregion X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and Mössbauer spectroscopy. The study uncovered the painting's manufacturing techniques through morphological observation, literature review, and pigment identification. It also provided insights into the deterioration processes and mechanisms in different areas of the artwork, suggesting that its condition may be linked to exposure to oxygen. In conclusion, this research contributes to a deeper understanding of the deterioration behavior and manufacturing techniques of reverse mirror paintings, offering valuable insights for their conservation.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 122-128"},"PeriodicalIF":3.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multianalytical study of neapolitan yellow tuff rotting: Archaeological park of herculaneum as a representative case of study","authors":"Iñaki Vázquez-de la Fuente ,&nbsp;Idoia Etxebarria ,&nbsp;Ilaria Costantini ,&nbsp;Jennifer Huidobro ,&nbsp;Marco Veneranda ,&nbsp;Nagore Prieto-Taboada ,&nbsp;Giuseppe Di Girolami ,&nbsp;Aitor Larrañaga ,&nbsp;Angela Di Lillo ,&nbsp;Marina Caso ,&nbsp;Mario Notomista ,&nbsp;Rossella Di Lauro ,&nbsp;Kepa Castro ,&nbsp;Gorka Arana ,&nbsp;Juan Manuel Madariaga","doi":"10.1016/j.culher.2025.02.019","DOIUrl":"10.1016/j.culher.2025.02.019","url":null,"abstract":"<div><div>The eruption of Mount Vesuvius in 79 CE buried Herculaneum under volcanic material, preserving its structures and organic materials remarkably well. Today, this site is known as the Archaeological Park of Herculaneum. Unfortunately, exposure to environmental factors has led to the degradation of Neapolitan Yellow Tuff (NYT), a material commonly used in Roman buildings, through a process known as rotting. This study, conducted by the Herculaneum Archaeological Park (PAERCO) and the Herculaneum Conservation Project (HCP) in collaboration with the IBeA research group (Research and Innovation in Analytical Chemistry, University of the Basque Country UPV/EHU), aimed to understand the tuff rotting process. By combining in-situ non-destructive analyses with laboratory investigations, it was determined, that NYT rotting is caused by the capillary ascent of saline-rich ground humidity, leading to internal stress from salt crystallization, with sodium sulphate identified as a critical threat. Furthermore, the analyses indicated that salts chemically react with NYT's minerals, causing the selective loss of its cementing material (zeolites). The study of soil samples revealed that the risk of rotting varies across the park due to differences in salt concentration and composition. These insights will help PAERCO and HCP identify high-risk areas and implement preventive measures, including the use of portable XRF instruments for ongoing monitoring and preservation of the site's historic structures.</div></div>","PeriodicalId":15480,"journal":{"name":"Journal of Cultural Heritage","volume":"73 ","pages":"Pages 129-138"},"PeriodicalIF":3.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}