Radiation Physics and Chemistry最新文献

{"title":"Enhanced capacity and cyclic performance of lithium-ion battery using a mixture of V2O5 and lithium borate glasses doped with manganese, cobalt, and nickel as the cathode active material","authors":"Jintara Padchasri,&nbsp;Sumeth Siriroj,&nbsp;Pinit Kidkhunthod","doi":"10.1016/j.radphyschem.2025.112839","DOIUrl":"10.1016/j.radphyschem.2025.112839","url":null,"abstract":"<div><div>Lithium-ion batteries (LIBs), powering numerous technologies, suffer from limitations including inadequate energy density and unstable performance over extended cycles. In this study, we explore Ni–Mn–Co (NMC)-doped LBO glass as a promising electrode material combined with a V₂O₅ cathode as a strategy to address these limitations. We investigated the effect of V₂O₅ cathode active material additions on the specific capacity of the synthesized NMC glass. Blends with less than 100V exhibited specific discharge capacities above 100 mAh.g⁻¹, reaching a peak capacity of 280 mAh.g⁻¹ at 75V25NMC. XANES analysis confirmed the oxidation states of V in the NMC glass, revealing V⁴⁺ as the dominant oxidation state in the fresh state and V⁵⁺ after cycling. These findings demonstrate the potential of NMC-doped LBO glass as a high-performance electrode material when coupled with a V₂O₅ cathode for next-generation LIBs, demonstrating enhanced energy density and improved cycling stability.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112839"},"PeriodicalIF":2.8,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monte Carlo simulation study on the radiation attenuation characteristics of doxorubicin-treated femur and tibia bones in rats","authors":"Hasan Özdoğan ,&nbsp;Ferdi Akman ,&nbsp;Özge Kilicoglu ,&nbsp;Yasin Gökçe ,&nbsp;Yiğit Ali Üncü","doi":"10.1016/j.radphyschem.2025.112841","DOIUrl":"10.1016/j.radphyschem.2025.112841","url":null,"abstract":"<div><div>Doxorubicin (DOX) is a potent chemotherapeutic agent widely recognized for its effectiveness in cancer treatment; however, its impact on bone tissue's radiation attenuation properties remains underexamined. This study investigates the gamma radiation attenuation properties of bones, focusing on mass attenuation coefficients (MACs) and linear attenuation coefficients (LACs) across a photon energy range of 0.05 MeV–0.15 MeV. Using simulation codes like WinXCom, MCNP, and PHITS, it was found that MACs decrease exponentially with increasing photon energy, influenced by the DOX bones' elemental compositions. The Control Tibia, with higher calcium content, showed superior gamma attenuation and higher MACs and LACs, especially at lower energies. Critical parameters such as half-value layer (HVL), tenth-value layer (TVL), and mean free path (MFP) were inversely related to LACs, with the control tibia demonstrating the lowest values. Conversely, DOX bones, specifically the Dox Femur and Dox Tibia, showed lower MACs and LACs than control bones, indicating reduced gamma attenuation and increased radiation permeability. DOX bones also displayed higher HVL, TVL, and MFP values, and a decrease in the effective atomic number (Z_eff) with photon energy. In conclusion, this comprehensive approach provides significant insights into the mechanisms governing the radiation permeability effects of DOX on biological tissues, emphasizing its critical impact on tissue integrity and its implications for medical applications.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112841"},"PeriodicalIF":2.8,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of elevated levels of natural radioactivity in groundwater of artisanal gold and gemstone mining sites and estimation of concomitant risk using Monte Carlo simulation approach","authors":"M.O. Isinkaye ,&nbsp;P.O. Fasanmi ,&nbsp;M.U. Khandaker ,&nbsp;M.I. Sayyed ,&nbsp;Mohamed Y. Hanfi","doi":"10.1016/j.radphyschem.2025.112823","DOIUrl":"10.1016/j.radphyschem.2025.112823","url":null,"abstract":"<div><div>This study investigates the occurrence of elevated levels of Naturally Occurring Radioactive Materials (NORMs) in groundwater within the artisanal gold and gemstone mining areas of Southwest Nigeria by using gamma spectrometric method. Artisanal mining operations are known for their potential environmental impacts through the release of NORMs into the environment. The presence of elevated concentrations of NORMs in groundwater can pose significant risks to both human health and the ecosystem. The results show that the mean activity concentrations of NORMs in groundwater samples from the various mining sites were 220.35 ± 64. 43 Bq/L for 40K, 10.53 ± 1.80 Bq/L for 238U and 17.42 ± 3.92 Bq/L for 232Th. All these values exceed the respective limits recommended by World Health Organization (WHO) as safe values for drinking water. Monte Carlo simulations was employed to assess the extent of contamination and the associated risks due to the ingestion of NORMs through the groundwater samples. The assessment of radiological risks via deterministic and probabilistic methods shows that the groundwater of the study area portend a significant risk to the population. Based on the results, it can be concluded that the groundwater of the study area contained elevated levels of NORMs.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112823"},"PeriodicalIF":2.8,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dosimetric validation of Elekta Synergy 6 MV and 10 MV photon beam models in the Monaco","authors":"Mai Thi Thao, Le Ba Thach, Luong Tien Phat, Nguyen Van Thanh, Duong Thanh Tai, Peter Sandwall, Abdelmoneim Sulieman, Nissren Tamam, James C.L. Chow","doi":"10.1016/j.radphyschem.2025.112819","DOIUrl":"https://doi.org/10.1016/j.radphyschem.2025.112819","url":null,"abstract":"This study assesses and compares the actual beam parameters with those calculated by the treatment planning system (TPS) on the Elekta Synergy linear accelerator at Phuc Thinh General Hospital, Vietnam. Photon beams of 6 MV and 10 MV were analyzed for varying field sizes and depths using a three-dimensional water tank phantom (48 × 48 × 48 cm<ce:sup loc=\"post\">3</ce:sup>) to measure the percentage depth dose (PDD) and profile for open fields (2 × 2 to 40 × 40 cm<ce:sup loc=\"post\">2</ce:sup>) and 60°-wedge fields (5 × 5 to 20 × 20 cm<ce:sup loc=\"post\">2</ce:sup>). Additionally, the same measurement configurations were accurately simulated in the Monaco TPS using a virtual water phantom of dimensions 60 × 40 × 60 cm<ce:sup loc=\"post\">3</ce:sup>. Data were analyzed using the Monaco Commissioning Utility and IBA's MyQA-Accept software. The Gamma index method was set at 3 %/3 mm, 2 %/2 mm, and 1 %/1 mm criteria to compare calculated and measured point doses. For the 6 MV photon, excellent agreement between the measured and calculated PDD and profiles was observed across all field sizes. The gamma passing rates were nearly 100 % when using the 3 %/3 mm and 2 %/2 mm criteria for both the Monte Carlo (MC) and Collapse Cone (CC) algorithms. A similar pattern was observed for the 10 MV photon beam, demonstrating strong agreement in both the PDD and dose profiles with the 3 %/3 mm and 2 %/2 mm criteria using the CC algorithm. However, when applying the more stringent 1 %/1 mm criterion, the small field 2 × 2 cm<ce:sup loc=\"post\">2</ce:sup> exhibited a significantly lower gamma pass rate and a higher output factor difference compared to the larger field sizes. Despite this, the output factor difference remained consistently below 1.3 % across all energies and field sizes. This study verifies the accuracy of the beam model and dose delivery while highlighting areas for improvement, such as optimizing the multi-leaf collimator (MLC). Continuous validation is recommended to maintain accuracy and treatment quality.","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"2 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Roadmap to an electron beam or X-ray center for industrial applications","authors":"Joern Meissner, Rob Edgecock, Jodi Lieberman, Martin Comben","doi":"10.1016/j.radphyschem.2025.112758","DOIUrl":"https://doi.org/10.1016/j.radphyschem.2025.112758","url":null,"abstract":"This paper introduces the topics that need consideration to allow an effective feasibility analysis of electron beams and/or X-rays technologies prior to potential investment and implementation of these technologies for industrial applications. It also highlights considerations for planning, developing and construction of an electron beam or X-ray facility The focus of this paper is on business topics and it provides details of where additional technical information can be found. The paper also describes current applications for electron beam and X-ray technologies to demonstrate their potential.","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"8 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards high performance lithium storage anodes: Design strategy for carbon coated SnS–SnO2/rGO nanocomposites","authors":"Orapim Namsar ,&nbsp;Thanapat Autthawong ,&nbsp;Chawin Yodbunork ,&nbsp;Waewwow Yodying ,&nbsp;Naruephon Mahamai ,&nbsp;Kittiputh Kunniyom ,&nbsp;Mitsutaka Haruta ,&nbsp;Thapanee Sarakonsri","doi":"10.1016/j.radphyschem.2025.112821","DOIUrl":"10.1016/j.radphyschem.2025.112821","url":null,"abstract":"<div><div>The new anode materials for lithium-ion batteries (LIBs), nanocomposites of carbon-coated SnS and SnO₂ riveted on rGO sheets (denoted as C@(SnS–SnO₂/rGO)), were constructed by effective, facile, and low-cost techniques. Benefiting from the dual-carbon modification (rGO and carbon coating layer), the C@(SnS–SnO₂/rGO) nanocomposites exhibited significantly improved rate capability and cycle stability as compared to uncoated SnS–SnO₂/rGO materials. At a current density of 100 mA g⁻¹ after 300 cycles, especially, the C@(60SnS–SnO₂/rGO) nanocomposite delivered a higher reversible capacity of ∼637 mAh g⁻¹ as compared to the uncoated 60SnS–SnO₂/rGO composite (∼359 mAh g⁻¹). Even at a high current density of 1000 mA g⁻¹, the C@(60SnS–SnO₂/rGO) nanocomposite anode still provided a high reversible capacity of ∼574 mAh g⁻¹ after 300 cycles and the capacity continuously increased to ∼674 mAh g⁻¹ after 500 cycles. The outstanding electrochemical performances of the new nanocomposites made them good candidates for use as high-performance anode materials. Moreover, the present research provides insights for the structural design of Sn compound-based composite electrodes which will be important for the future development of high-performance LIB anode materials.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112821"},"PeriodicalIF":2.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiation shielding properties of materials used in the aeronautical industry","authors":"Luiz F. Pires ,&nbsp;Gelson B. de Souza","doi":"10.1016/j.radphyschem.2025.112820","DOIUrl":"10.1016/j.radphyschem.2025.112820","url":null,"abstract":"<div><div>The investigation looked into metal materials originally created for aircraft frameworks and propulsion systems, which exemplify components engineered for opposing environments. The aluminum alloy AA7075 is a structural material for fuselage and wings, while the nickel superalloys Inconel 718 and Hastelloy X are suitable for combustion and exhaust sections of jet engines that operate at temperatures above 1000 °C. The radiation shielding effectiveness is relevant in several situations for commercial and defense aircraft, but it also matters for other employments of these alloys. Simulations through the XCOM and Phy-X/PSD codes allowed to obtain photon attenuation parameters of interest: linear and mass attenuation coefficients, mean free path (MFP), half-value layer (HVL), tenth-value layer (TVL), effective atomic number (Z_eff) and effective electron density (N_eff). The analyzed energy range was 0.015–15 MeV, encompassing different photon-matter interactions. The results were evaluated on a comparison basis. The two types of materials, nickel and aluminum-based alloys, presented similar linear and mass attenuation profile shapes, with the lowest curves pertaining to AA7075. Regarding Ni-based alloys, the Nb and Mo amounts influenced Z_eff and N_eff for the lowest photon energies (&lt;0.5 MeV). It is concluded the nickel superalloys are more efficient at shielding radiation than Al-7075, while differences are slight between Inconel 718 and Hastelloy X, in direct correlation with these materials’ chemical compositions and densities.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112820"},"PeriodicalIF":2.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the impact of target area surface curvature on dosimetric characteristics of external beam radiation therapy using Monte Carlo simulation","authors":"Mohammed Rezzoug ,&nbsp;Mustapha Zerfaoui ,&nbsp;Yassine Oulhouq ,&nbsp;Abdeslem Rrhioua ,&nbsp;Samir Didi ,&nbsp;Dikra Bakari","doi":"10.1016/j.radphyschem.2025.112828","DOIUrl":"10.1016/j.radphyschem.2025.112828","url":null,"abstract":"<div><h3>Purpose</h3><div>The purpose of this investigation was to access the impact of target area surface curvature on the dosimetric characteristics in external beam radiation therapy using the GATE (Geant4 Application for Tomographic Emission) Monte Carlo simulation tool.</div></div><div><h3>Materials and methods</h3><div>The study validated a simulation model using phase-space data (Phsp) from the PRIMO platform (a free Monte Carlo-based simulation software for linear accelerators and dose calculations in radiotherapy) for the VARIAN Clinac 2100C accelerator. Information on the energy, position, direction, and other characteristics of millions of particles (photons, electrons, and positrons) is contained in the Phsp which is crucial for accurate Monte Carlo simulations. For different field sizes and applicator dimensions, 6 MV photon beams as well as 6 MeV, 9 MeV, and 12 MeV electron beams are of interest. For validation, data measured with the gamma index (2 %/2 mm) was compared to the GATE Monte Carlo simulations. Curved surface water tanks were also used to examine how surface curvature affected dose distributions.</div></div><div><h3>Results</h3><div>The study found that surface curvature, which is controlled by field size, energy, and degree of curvature, has an impact on depth yield curves and dose profiles. The effect is small for photons but evident for electrons beyond the buildup region in depth-percentage (PDD) dose curves, which raises the dose at depth for the biggest curvature. The electron profile curves changed in the curved mediums, indicating that the curvature impacts from areas farther from the center of the beam field, according to the dose profiles. Depending on the field's size and energy, this shift becomes important in the penumbra area when the field's lateral size is greater than twice the radius of curvature (2xR), especially at 6 MeV.</div></div><div><h3>Conclusions</h3><div>Surface curvature has a notable impact on the dosimetric characteristics of electron and photon beams in external beam radiation therapy. The effects are more pronounced for electron beams.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112828"},"PeriodicalIF":2.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the impact of Nb2O5 on structural and shielding properties of aluminum fluorosilicate glass systems","authors":"A.M. Elsherbeny ,&nbsp;A.M. Abdelghany ,&nbsp;S.M. Ghorab ,&nbsp;R.M. Shalaby","doi":"10.1016/j.radphyschem.2025.112824","DOIUrl":"10.1016/j.radphyschem.2025.112824","url":null,"abstract":"<div><div>This study investigates the structural, optical, and gamma-ray shielding properties of aluminum fluorosilicate glasses with the composition 45SiO₂–15Al₂O₃–10CaF₂–15Na₂O–5NaF-(10-x)SrO-xNb₂O₅ (x = 0, 5, 10 mol%). Glasses were synthesized using the melt-quenching technique and characterized via XRD, FTIR, and gamma-ray attenuation measurements. XRD confirmed the amorphous nature of all samples, with Nb₂O₅ incorporation causing a shift in the broad halo position, indicating network depolymerization. FTIR analysis revealed structural modifications in Si–O–Si and Si–O–Al linkages. The introduction of Nb₂O₅ significantly enhanced gamma-ray shielding properties, with increased mass and linear attenuation coefficients, particularly at lower energies. The effective atomic number (Zeff) and equivalent atomic number (Zeq) showed a positive correlation with Nb₂O₅ content, while the energy absorption buildup factor (EABF) exhibited composition-dependent variations. These findings demonstrate that Nb₂O₅ substitution improves radiation shielding capabilities while maintaining structural stability. The study provides a foundation for developing advanced, lightweight, and transparent radiation shielding materials, offering a viable alternative to traditional heavy-metal-based shields for use in medical, nuclear, and industrial applications.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112824"},"PeriodicalIF":2.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143854636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proposal for an Iodine-131-based technique derived from a Monte Carlo study for inactivating SARS-CoV-2","authors":"Jaafar EL Bakkali ,&nbsp;Tarek EL Bardouni ,&nbsp;Bouchra El Mchichi ,&nbsp;Omar Ait Sahel ,&nbsp;Khalid Ennibi ,&nbsp;Abderrahim Doudouh","doi":"10.1016/j.radphyschem.2025.112827","DOIUrl":"10.1016/j.radphyschem.2025.112827","url":null,"abstract":"<div><div>Ionizing radiation has been used for many years in the development of vaccines against viruses. Recent studies have shown that γ radiation can effectively inactivate SARS-CoV-2 at doses ≥6 kGy. In this study, we proposed a β⁻ inactivation method for SARS-CoV-2 using the Iodine-131 (I-131). Using FreeCad software, we designed five four-layered hollow spheres with varying radii. The innermost layer is a solid sphere containing 5 cc of a 30 mCi I-131. The second layer consists of a 0.2 mm thick aerographene wall that separates the I-131 from the viral sample. The third layer is designed to accommodate 1, 2, 3, 4, or 5 cc of the viral sample. The outer layer is also a aerographene wall that serves as an external surface to protect the viral samples. We estimated the S-values for the selected viral samples using InterDosi 1.4 code, with ICRP adult male blood as the material assigned to the viral samples. Knowing that the SARS-CoV-2 can be viable when refrigerated at 4 °C for 21 days, we calculated the cumulative activity of I-131 in that same period or less. The mean absorbed dose was then estimated by multiplying the S-value by the cumulative activity. Our findings reveal that a 1 cc viral sample treated with 5 cc of 30 mCi I-131 achieved the highest S-value establishing it as the most effective geometric configuration examined. Furthermore, the study indicated that a single dose of I-131 can sequentially inactivate four 1 cc viral samples over a period of a month. We concluded that beta-emitting radionuclides like I-131 could serve as effective alternatives for inactivating SARS-CoV-2.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"235 ","pages":"Article 112827"},"PeriodicalIF":2.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}