Deep-Sea Research Part I-Oceanographic Research Papers最新文献

{"title":"Westward modification of Caribbean through-flow water mass structure","authors":"Joseph C. Gradone ,&nbsp;W. Douglas Wilson ,&nbsp;Scott M. Glenn ,&nbsp;Travis N. Miles","doi":"10.1016/j.dsr.2025.104581","DOIUrl":"10.1016/j.dsr.2025.104581","url":null,"abstract":"<div><div>The Caribbean Through-Flow (CTF) is a critical chokepoint for North and South Atlantic waters that form the North Atlantic western boundary current system and the upper ocean limb of the Atlantic Meridional Overturning Circulation. While the circulation and energetics of the CTF have been well studied, its water mass transformations remain poorly constrained. Using over 7700 Argo float profiles from 2014 to 2024, we document a prominent westward modification in water mass structure across the Caribbean Sea. From the eastern to western Caribbean, we observe systematic increases in ocean heat content, a deepening of isopycnals, and a freshening and deepening of the subsurface salinity maximum. These changes result in a net mid-depth (∼50–500 m) density reduction of 0.40 ± 0.27 kg m^-3. We hypothesize that regional variations in mesoscale eddy activity, complex bathymetry, and meridional wind stress curl gradients drive this transformation. The resulting water mass structure has critical implications for regional climate, weather, ecosystems, and sea level rise, as it modifies the density and stratification of source waters entering the Gulf of Mexico and North Atlantic western boundary current system. Our findings highlight the importance of internal Caribbean processes in shaping upper-ocean heat and salt transport in the Atlantic and underscore the need for sustained in situ observations in the region and targeted modeling analyses of the underlying modification processes.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"225 ","pages":"Article 104581"},"PeriodicalIF":2.1,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144906989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deep water overflow through the southern gap of the Oki Spur in the Japan Sea","authors":"Tomoharu Senjyu ,&nbsp;Satoru Tanimura ,&nbsp;Takafumi Aramaki","doi":"10.1016/j.dsr.2025.104578","DOIUrl":"10.1016/j.dsr.2025.104578","url":null,"abstract":"<div><div>Water exchange processes between abyssal basins are a problem of universal interest because they control deep water climate. In this study, structure and variability of deep currents running through the southern gap of the Oki Spur from the Tsushima to Yamato Basins in the southern Japan Sea were investigated using the moored current meters and closely spaced hydrographic observations. Our observations revealed that the deep currents are cold, dense water overflows from the Tsushima Basin. Cold water spilling from the southern gap flows southward on the eastern flank of the spur as cold bottom water. Water mass analyses revealed that cold bottom water mixed with upper warmer water decreased its density during the early movement stages and then increased its density by mixing with lateral saline water. A streamtube model assuming a steady state roughly reproduced the depth, density, and velocity of cold bottom water, suggesting that it was in a near geostrophic balance. A strong southward current event accompanying the cold bottom water was observed from late December 1999 to early February 2000. An ocean reanalysis dataset showed that the event was associated with the Tsushima Current in the upper layer, suggesting that surface current variations promoted abyssal inter-basin water mass exchanges. In addition, current fluctuations of ∼10-day periods prevailed in the overflows, suggesting baroclinic instability.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"225 ","pages":"Article 104578"},"PeriodicalIF":2.1,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144903443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Petrogenesis of igneous rocks from the Yap Arc, west Pacific: implications for its tectonic evolution","authors":"Quanshu Yan ,&nbsp;Shishuai Yan ,&nbsp;Long Yuan ,&nbsp;Zhenxuan Liu ,&nbsp;Yanguang Liu ,&nbsp;Gang Yang","doi":"10.1016/j.dsr.2025.104577","DOIUrl":"10.1016/j.dsr.2025.104577","url":null,"abstract":"<div><div>The Yap arc-trench system was formed by the westward subduction of the Pacific/Caroline Plate beneath the Philippine Sea Plate (PSP) and was subsequently influenced by the jam of the Caroline Plateau into the Yap Trench. This makes it an ideal area for deciphering the geological evolution of an island arc when an oceanic plateau approaches a subduction zone. In the present study, we analyzed the mineralogical, geochemical, and isotopic compositions of peridotite, gabbroic diorite, and volcanic rocks collected from the southern Yap Arc. The results show that: (1) the peridotites are forearc peridotites, representing residues after 10–15 % partial melting of the sub-arc mantle wedge, caused by fluids released from the subducted slab during the subduction of the oceanic plateau. These peridotites were subsequently exposed in the Yap Arc due to tectonic erosion of the subducting plate. (2) The Yap Arc gabbro diorites share similarities with infant arc lavas and may have formed through a relatively low degree of partial melting of sub-arc basic rocks. (3) The Yap Arc basalts were produced by 2–5 % partial melting of the southern Yap peridotites under the influence of approximately 0.5 % sediment input. These basalts exhibit characteristics typical of the Pacific MORB-type mantle. (4) The andesites of the Yap Arc were formed through partial melting of preexisting basic rocks at the arc front, influenced by 0.5–1 % sediment melt. Hf-Nd isotopic characteristics of the southern Yap Arc basalts have validated the entry of Pacific MORB-type mantle into the Yap sub-arc mantle via a slab gap.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"225 ","pages":"Article 104577"},"PeriodicalIF":2.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144888832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reflections of tropical cyclone-generated near-inertial internal waves within an anticyclonic eddy in the southern Bay of Bengal","authors":"Yingyu Peng ,&nbsp;Di Tian ,&nbsp;Feng Zhou ,&nbsp;Han Zhang ,&nbsp;Shengming Yuan ,&nbsp;Zifei Chen ,&nbsp;Ruijie Ye","doi":"10.1016/j.dsr.2025.104576","DOIUrl":"10.1016/j.dsr.2025.104576","url":null,"abstract":"<div><div>Two consecutive strong near-inertial waves (NIWs) events were observed by a subsurface mooring in the southern Bay of Bengal (BoB). The first event, directly triggered by two consecutive tropical cyclones, displayed a pronounced upward (downward) phase (energy) propagation. The second event, occurring approximately 14 days post-tropical cyclones, featured predominant downward phase propagation with a peak velocity of 11.2 cm/s at 120 m depth. Despite weak wind-generated near-inertial energy flux (WNEF) during the second event, stronger energy reflection was observed in the upper layer of an anticyclonic eddy (ACE). Analyses using rotary wavenumber and ray-tracing models revealed upward propagating energy, reduced buoyancy frequency, and enhanced vertical shear, suggesting NIW reflection within the ACE. Nonlinear internal wave interactions were identified as the mechanism behind the generation of 2f = f + f waves. In the second NIWs event, increased near-inertial energy and 2f wave formation were possibly linked to local NIWs, driven by wind stress input and the radiation of NIWs during the adjustment process induced by anticyclonic eddy instability. These results highlight the influence of ACEs on the vertical propagation of NIWs and enhance the understanding of the upper-layer mixing process in the southern BoB.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"224 ","pages":"Article 104576"},"PeriodicalIF":2.1,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time series prediction of sound speed profiles in complex shallow water environment","authors":"Ziwen Wang ,&nbsp;Qianqian Li ,&nbsp;Zhenglin Li ,&nbsp;Jixing Qin","doi":"10.1016/j.dsr.2025.104575","DOIUrl":"10.1016/j.dsr.2025.104575","url":null,"abstract":"<div><div>Sound speed exhibits significant spatio-temporal variations in shallow waters, particularly in environments with internal solitary waves (ISWs). The temporal prediction of sound speed profiles (SSPs) can be transformed into the prediction of empirical orthogonal function (EOF) coefficients. However, dynamic oceanic phenomena can cause significant variations in the background field and EOFs, leading to representational errors. Studies have shown that the sound speed at the depth corresponding to the extreme point of the first EOF contains the most information, which can effectively reflect the SSP structure. To reduce the impact of the background field and EOF mismatch on SSP prediction accuracy, an indirect approach is proposed. Compared to directly predicting the EOF coefficients using a Long Short-Term Memory (LSTM) network, the indirect approach utilizes historical data to establish the relationship between the depth-fixed sound speed at a specified depth and the EOF coefficients using a back propagation (BP) network. The LSTM then predicts the depth-fixed sound speed for the test set. Finally, the EOF coefficients are obtained from the trained BP network and subsequently used to reconstruct the SSPs. A negative coupling relationship is observed between the first EOF component estimated by the indirect approach and the background field. This relationship causes the mutual cancellation of two error components, ultimately reducing the SSP prediction error. The indirect approach substantially enhances SSP prediction accuracy compared to the direct approach, reducing errors by approximately 0.9 m/s, reaching approximately 0.67 m/s. Moreover, it maintains high prediction accuracy with an error of approximately 0.57 m/s with a representative background field.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"225 ","pages":"Article 104575"},"PeriodicalIF":2.1,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In situ diet patterns and health status of cold-water corals in the Lacaze-Duthiers canyon (NW Mediterranean Sea): insights from fatty acid biomarkers on lipid classes","authors":"Audrey M. Pruski,&nbsp;Gilles Vétion,&nbsp;Franck Lartaud,&nbsp;Erwan Peru,&nbsp;Nadine Le Bris","doi":"10.1016/j.dsr.2025.104573","DOIUrl":"10.1016/j.dsr.2025.104573","url":null,"abstract":"<div><div>Hydrodynamic and food supply favourable conditions in the Lacaze-Duthiers Canyon (northwestern Mediterranean Sea) have supported the establishment of deep-sea corals, with some of the highest densities recorded in the Mediterranean. However, increasing pressures on these vulnerable habitats raise critical questions about their ecological status and resilience to environmental changes, emphasising the need to understand their trophic ecology. This study provides the most detailed analysis to date of the lipid profiles and fatty acid signatures of two key framework-building cold-water corals, <em>Madrepora oculata</em> and <em>Desmophyllum pertusum</em> (syn. <em>Lophelia pertusa</em>), offering insights into their feeding strategies, dietary requirements, and nutritional condition.</div><div>The results reveal that lipid classes exhibit distinct fatty acid compositions based on functional roles (storage vs. structural). Fatty acid trophic markers (FATM) indicative of herbivorous calanoids, carnivorous copepods, and phytodetritus were detected in the storage lipids (waxes and triglycerides) of both species, yet no FATM was specific to either species. This indicates a mixed diet and dietary overlap between the two corals. However, the composition of storage lipids varied significantly across samples, likely reflecting (1) species-specific feeding preferences, with <em>D. pertusum</em> showing greater reliance on overwintering copepods, and (2) the dynamic availability of food resources within the canyon.</div><div>Phospholipids were enriched in polyunsaturated fatty acids (PUFA), suggesting that dietary inputs are of sufficiently high quality to meet the metabolic demands of cold-water corals. High levels of storage lipids, primarily long-term reserves (wax esters) enriched in PUFA and zooplankton markers, underscore the good nutritional status of cold-water corals in the Lacaze-Duthiers Canyon.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"224 ","pages":"Article 104573"},"PeriodicalIF":2.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zonation of a cold-water coral garden on the northern continental slope of the South China sea","authors":"Liquan Luo ,&nbsp;Haowen Dang ,&nbsp;Zhiwei Zeng ,&nbsp;Mingyuan Bu ,&nbsp;Chen Li ,&nbsp;Jianru Li ,&nbsp;Yanli Lei ,&nbsp;Wei Huang ,&nbsp;Zhimin Jian","doi":"10.1016/j.dsr.2025.104574","DOIUrl":"10.1016/j.dsr.2025.104574","url":null,"abstract":"<div><div>Cold-water coral (CWC) ecosystems are receiving ever-increasing attention. Here, the distribution of CWC on a single seamount off the northern continental shelf of the South China Sea (SCS) is investigated by combining video footage from manned submersible dives and high-resolution multibeam bathymetric data. An active CWC garden ecosystem, with an average density of 15.11 ± 2.25 individuals per 100 m², is identified on the seamount. Video footage analysis enabled the classification of CWC into 10 distinct families. The spatial distribution of the CWC on the seamount is significantly influenced by bottom current intensity and substrate type. At the summit of the seamount, dead coral skeletons covering a large area are found on mud substrates. The distribution pattern of the studied CWC garden reveals the important role of the seamount's elevated structure in sustaining benthic ecosystems under high sedimentation-rate conditions. The widespread occurrence of dead scleractinians further indicates the presence of significant environmental stressors that may threaten the long-term viability of the CWC garden, underscoring the need for continued ecological research and conservation efforts on the continental slopes of the South China Sea.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"224 ","pages":"Article 104574"},"PeriodicalIF":2.1,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of the Amazon River plume on the biodiversity and assemblage structure of lanternfishes (Myctophidae)","authors":"Júlia R. Martins ,&nbsp;Michael M. Mincarone ,&nbsp;Arnaud Bertrand ,&nbsp;Camila Artana ,&nbsp;Flávia Lucena-Frédou ,&nbsp;Ariane Koch-Larrouy ,&nbsp;Rayssa S. Lima ,&nbsp;Leandro N. Eduardo","doi":"10.1016/j.dsr.2025.104572","DOIUrl":"10.1016/j.dsr.2025.104572","url":null,"abstract":"<div><div>Lanternfishes (Myctophidae) are among the most abundant vertebrates globally, playing critical roles in carbon transport, nutrient recycling, and trophic structuring of pelagic ecosystems. However, they remain poorly understood and are increasingly impacted by anthropogenic activities. Here we investigated how the plume of the world's largest river, the Amazon, shapes the diversity and assemblage structure of lanternfishes. To this end, we conducted an integrative characterization of the taxonomic diversity, distribution, and abundance of 2916 lanternfish specimens, representing 31 species, collected during the dry season (August–September 2021) across areas with varying levels of Amazon River plume influence. Based on a classification of relative importance, five species were classified as abundant and frequent, while the remaining species were predominantly classified as either scarce and frequent (nine species) or scarce and rare (17 species). In regard to vertical distribution, at least 20 of the 31 species were detected at night in epipelagic waters (0–200 m), displaying four distinct broad patterns of vertical migration and distribution. We showed that, while the Amazon Plume appears to influence lanternfish species richness and size distribution, depth is the primary variable explaining the structuring of lanternfish assemblages. Moreover, while diversity appears to be similar to other tropical regions of the Atlantic Ocean, there is a noticeable dominance of certain species, suggesting that the hydrographic structure and nutrient input from the Amazon River may favour specific species.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"225 ","pages":"Article 104572"},"PeriodicalIF":2.1,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new discovery of source contribution and transport mechanism of clay minerals in Taiwan Canyon-Manila Trench","authors":"Chenyu Fan ,&nbsp;Zhuangcai Tian ,&nbsp;Kai Cui ,&nbsp;Jinjian Huang ,&nbsp;Sicheng Bian ,&nbsp;Liyu Yang ,&nbsp;Taiping Zhang","doi":"10.1016/j.dsr.2025.104571","DOIUrl":"10.1016/j.dsr.2025.104571","url":null,"abstract":"<div><div>The northeastern South China Sea is characterized by a complex system of submarine canyons, making the study of its sediment “source-to-sink” processes crucial for understanding regional tectonic-climate interactions. This study focuses on two areas: the Taiwan Canyon and northern Manila Trench in the northeastern South China Sea. We used X-ray diffraction to analyze clay minerals. The analysis examined surface and core sediments from seven sampling sites. We studied both composition and sources of these minerals. We quantified the contribution rates from different sources and detailed the transport pathways. The results indicate that clay minerals in the study area are predominantly composed of illite (58.9 %–70.7 %) and chlorite (22.2 %–39.6 %), while smectite (0.3 %–7.4 %) and kaolinite (0.3 %–12.2 %) are present in significantly lower abundances. Taiwan Island is the primary source of clay minerals (47.9–97.7 %), transported to the northern Manila Trench via the Penghu-Gaoping Canyon system and deep-water currents. Luzon Island contributes minimally (&lt;7.4 %), with its materials carried by the Kuroshio Current. The Pearl River catchment serves as a secondary source (1.5–48.2 %). This study proposes that Pearl River sediments in the northern South China Sea are transported via two distinct pathways: (1) shelf sediments are transported through the Taiwan Canyon to the northern Manila Trench, while (2) slope sediments are delivered directly to both the mid-Taiwan Canyon (ZC4) and the northern Manila Trench (YF6). These results offer significant scientific insights into the “source-to-sink” sedimentary processes along the continental margin of the northeastern South China Sea.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"224 ","pages":"Article 104571"},"PeriodicalIF":2.1,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined influence of strong winds and warm deep water on the formation of Amundsen Sea Polynya in winter","authors":"Mengting Zhuo ,&nbsp;Yu Hong ,&nbsp;Yuhong Zhang ,&nbsp;Jiping Liu ,&nbsp;Lingqiao Cheng ,&nbsp;Guoping Zhu ,&nbsp;Song Hu ,&nbsp;Yan Du","doi":"10.1016/j.dsr.2025.104561","DOIUrl":"10.1016/j.dsr.2025.104561","url":null,"abstract":"<div><div>Polynyas play an important role in climate change by enhancing heat and material exchange between the atmosphere and the ocean in polar regions. This study investigated the influence of strong winds and warm deep water on the Amundsen Sea Polynya (ASP), with a particular focus on ASP events during the winter of 2014. The ASP is located directly above the underwater Bear Ridge, with its shape corresponding to the topography. The ASP is more frequently observed on the eastern side than on the western side, due to the influence of the iceberg chain (fast ice) east of the ASP and prevailing southeast winds. However, we found that the occurrence frequency of the ASP is highest in the shallowest points of the topography, rather than near the iceberg chain on the easternmost side. This is related to the upwelling of warm deep water driven by topography. The upward mixing of warm water with the surface waters inhibits sea ice formation and growth there, helping to maintain the ASP on the east side of the Bear Ridge top. Given the potential for a warmer subsurface ocean around Antarctica in the future, enhanced warm deep water mixing could further impact the thermodynamics of the ASP.</div></div>","PeriodicalId":51009,"journal":{"name":"Deep-Sea Research Part I-Oceanographic Research Papers","volume":"224 ","pages":"Article 104561"},"PeriodicalIF":2.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}