Myeloid sarcomas （MS） preceding acute myeloid leukemia （AML） are rare, which presenting as acute spinal cord compression is even rare. Here we report two new cases of myeloid sarcoma patients, whose outcomes were ...Myeloid sarcomas （MS） preceding acute myeloid leukemia （AML） are rare, which presenting as acute spinal cord compression is even rare. Here we report two new cases of myeloid sarcoma patients, whose outcomes were different. Twenty-seven patients with spinal MS preceding AML have been reported to date, including the two cases presented in this article. Surgical decompression was performed in 25 of the 27 patients, and 23 of these received additional anti-AML therapy. Considering our patients and the published cases in the literature we suggest that immunohistochemical study plays an essential role in arriving at a correct diagnosis of MS, and that emergency surgery to resect spinal MS is an available treatment to make neural function recovery, and that the disease must be treated with intensive chemotherapy similar to that used to treat AML as soon as possible after resection or irradiation of the tumor.展开更多
Starting from optical nihility media (ONM),we design several intriguing devices with transformation optics method in two dimensions,such as a wave splitter,a concave lens,a field rotator,a concentrator,and an invisibi...Starting from optical nihility media (ONM),we design several intriguing devices with transformation optics method in two dimensions,such as a wave splitter,a concave lens,a field rotator,a concentrator,and an invisibility cloak.Though the extreme anisotropic property of ONM hinders the fabrication of these devices.We demonstrate that those devices could be effectively realized by simplified materials with Fabry-Pérot resonances (FPs) at discrete frequencies.Moreover,we propose a reduced version of simplified materials with FPs to construct a concentrator and a rotator,which is feasible in experimental fabrications.The simulations of total scattering cross-sections confirm their functionalities.展开更多
With the rapid development of various portable electronic devices,lithium ion battery electrode materials with high energy and power density,long cycle life and low cost were pursued.Vanadium-based oxides/sulfides wer...With the rapid development of various portable electronic devices,lithium ion battery electrode materials with high energy and power density,long cycle life and low cost were pursued.Vanadium-based oxides/sulfides were considered as the ideal next-generation electrode materials due to their high capacity,abundant reserves and low cost.However,the inherent low conductivity and ion diffusion coefficient limit their practical applications in lithium ion batteries.In recent years,vanadium-based electrode materials have been designed into various nanostructures through a variety of nanofabrication processes to overcome the electrochemical performance bottleneck caused by the above disadvantages due to the new properties of nanomaterials that cannot be achieved at the solid level.However,how to obtain high-performance vanadium-based electrode nanomaterials with controllable morphology and structure through low-cost and environmentally friendly processes is still a huge challenge.In this paper,the basic structure,modified morphologies and synthesis methods of vanadium-based electrode materials for lithium ion batteries were reviewed.In addition,the disadvantages,new challenges and future development direction of vanadium electrode materials were also discussed.展开更多
The mesoscopic solution-state aggregation plays a dominant role in the multilevel self-assembly of conjugated polymers.However,its effect on solid-state microstructures and the electrical performance of conjugated pol...The mesoscopic solution-state aggregation plays a dominant role in the multilevel self-assembly of conjugated polymers.However,its effect on solid-state microstructures and the electrical performance of conjugated polymers is still a puzzle due to the limitation of characterization techniques.Herein,we have developed four isoindigo-based conjugated polymers with varied alkyl chains to reveal the relationship between solution-state aggregation,molecular doping process,and charge transport properties.展开更多
文摘AIM: To compare the prevalence and diversity of gastrointestinal (GI) symptoms in patients undergoing peritoneal dialysis (PD) and hemodialysis (HD).
文摘Myeloid sarcomas （MS） preceding acute myeloid leukemia （AML） are rare, which presenting as acute spinal cord compression is even rare. Here we report two new cases of myeloid sarcoma patients, whose outcomes were different. Twenty-seven patients with spinal MS preceding AML have been reported to date, including the two cases presented in this article. Surgical decompression was performed in 25 of the 27 patients, and 23 of these received additional anti-AML therapy. Considering our patients and the published cases in the literature we suggest that immunohistochemical study plays an essential role in arriving at a correct diagnosis of MS, and that emergency surgery to resect spinal MS is an available treatment to make neural function recovery, and that the disease must be treated with intensive chemotherapy similar to that used to treat AML as soon as possible after resection or irradiation of the tumor.
基金supported by the National Natural Science Foundation of China for Excellent Young Scientists (Grant No.61322504)the National Basic Research Program of China (Grant No.2013CB035901)+1 种基金the Fundamental Research Funds for the Central Universities (Grant No.20720170015)the National Natural Science Foundation of China (Grants Nos.51779224, 51579221,51279180,61705200, and 11874311).
文摘Starting from optical nihility media (ONM),we design several intriguing devices with transformation optics method in two dimensions,such as a wave splitter,a concave lens,a field rotator,a concentrator,and an invisibility cloak.Though the extreme anisotropic property of ONM hinders the fabrication of these devices.We demonstrate that those devices could be effectively realized by simplified materials with Fabry-Pérot resonances (FPs) at discrete frequencies.Moreover,we propose a reduced version of simplified materials with FPs to construct a concentrator and a rotator,which is feasible in experimental fabrications.The simulations of total scattering cross-sections confirm their functionalities.
基金supported by Shanghai Natural Science Foundation(Grant No.14ZR1418700)Shanghai University of Engineering Science Innovation Fund(Grant No.18KY0504)
文摘With the rapid development of various portable electronic devices,lithium ion battery electrode materials with high energy and power density,long cycle life and low cost were pursued.Vanadium-based oxides/sulfides were considered as the ideal next-generation electrode materials due to their high capacity,abundant reserves and low cost.However,the inherent low conductivity and ion diffusion coefficient limit their practical applications in lithium ion batteries.In recent years,vanadium-based electrode materials have been designed into various nanostructures through a variety of nanofabrication processes to overcome the electrochemical performance bottleneck caused by the above disadvantages due to the new properties of nanomaterials that cannot be achieved at the solid level.However,how to obtain high-performance vanadium-based electrode nanomaterials with controllable morphology and structure through low-cost and environmentally friendly processes is still a huge challenge.In this paper,the basic structure,modified morphologies and synthesis methods of vanadium-based electrode materials for lithium ion batteries were reviewed.In addition,the disadvantages,new challenges and future development direction of vanadium electrode materials were also discussed.
基金work is supported by the National Key R&D Program of China(no.2017YFA0204701)National Natural Sci-ence Foundation of China(nos.21790360 and 21722201)Beijing Outstanding Young Scientist Program(no.BJJWZYJH01201910001001).
文摘The mesoscopic solution-state aggregation plays a dominant role in the multilevel self-assembly of conjugated polymers.However,its effect on solid-state microstructures and the electrical performance of conjugated polymers is still a puzzle due to the limitation of characterization techniques.Herein,we have developed four isoindigo-based conjugated polymers with varied alkyl chains to reveal the relationship between solution-state aggregation,molecular doping process,and charge transport properties.
