The increasing prevalence of hypothyroidism,which can cause endocrine dysfunction,abnormal neurological function,and cardiovascular and cerebrovascular injuries,poses serious health problems.Thyroid hormone supplement...The increasing prevalence of hypothyroidism,which can cause endocrine dysfunction,abnormal neurological function,and cardiovascular and cerebrovascular injuries,poses serious health problems.Thyroid hormone supplementation constitutes the current main therapeutic method for hypothyroidism,yet it has many limitations and risks and is not suitable for everyone.Therefore,it is necessary to seek alternative and complementary treatment methods.It has been proven in practice that traditional Chinese medicine(TCM)possesses multi-channel comprehensive characteristics for the treatment of hypothyroidism and has more advantages than single thyroid hormone supplementation.Through a comprehensive examination of existing literature about TCM efficacy in addressing hypothyroidism,we have meticulously consolidated the most recent research findings on prescriptions and herbal substances employed in the treatment of this condition.Furthermore,we have explicated their respective functions in the management of hypothyroidism,thereby offering valuable perspectives and recommendations for the prospective utilization of natural remedies in its treatment.展开更多
Previous observations have revealed an accretion disk and outflow motion in the high-mass starforming region G192.16–3.84, but collapse has not been reported before. Here we present molecular line and continuum obser...Previous observations have revealed an accretion disk and outflow motion in the high-mass starforming region G192.16–3.84, but collapse has not been reported before. Here we present molecular line and continuum observations toward the massive core G192.16–3.84 with the Submillimeter Array. C18 O(2–1) and HCO+(3–2) lines show pronounced blue profiles, indicating gas infalling in this region. This is the first time that infall motion has been reported in the G192.16–3.84 core. Two-layer model fitting gives infall velocities of 2.0±0.2 and 2.8±0.1 km s-1. Assuming that the cloud core follows a power-law density profile(ρ∝ r1.5), the corresponding mass infall rates are(4.7±1.7)×10-3 and(6.6±2.1)×10-3 M⊙yr-1 for C18 O(2–1) and HCO+(3–2), respectively. The derived infall rates are in agreement with the turbulent core model and those in other high-mass star-forming regions, suggesting that high accretion rate is a general requirement for forming a massive star.展开更多
Thirty massive clumps associated with bright infrared sources were observed to detect the infall signatures and characterize infall properties in the envelope of the massive clumps by APEX telescope in CO(4-3)and C17O...Thirty massive clumps associated with bright infrared sources were observed to detect the infall signatures and characterize infall properties in the envelope of the massive clumps by APEX telescope in CO(4-3)and C17O(3-2)lines.Eighteen objects exhibit a"blue profile"in the CO(4-3)line with virial parameters less than 2,suggesting that global collapse is taking place in these massive clumps.The CO(4-3)lines were fitted via the two-layer model in order to obtain infall velocities and mass infall rates.Derived mass infall rates range from 10-3 to 10-1 M☉yr*(-1).A positive relationship between clump mass and infall rate appears to indicate that gravity plays a dominant role in the collapsing process.Higher luminosity clumps have a larger mass infall rate,implying that those clumps with higher mass infall rates possess a higher star formation rate.展开更多
With the rising demand for fast-charging technology in electric vehicles and portable devices,significant efforts have been devoted to the development of the highrate batteries.Among numerous candidates,rechargeable a...With the rising demand for fast-charging technology in electric vehicles and portable devices,significant efforts have been devoted to the development of the highrate batteries.Among numerous candidates,rechargeable aqueous zinc-ion batteries(ZlBs)are a promising option due to its high theoretical capacity,low redox potential of zinc metal anode and inherent high ionic conductivity of aqueous electrolyte.As the strong electrostatic interaction between Zn^(2+)and host generally leads to sluggish electrode kinetics,many strategies have been proposed to enhance fast(dis)charging performance.Herein,we review the state-of-the-art ultrafast aqueous ZIBs and focus on the rational electrode-designing strategies,such as crystal structure engineering,nanostructuring and morphology controlling,conductive materials introducing and organic molecule designing.Recent research directions and future perspectives are also proposed in this review.展开更多
Sodium-ion batteries(SIBs),as highly promising alternatives to lithium-ion batteries(LIBs),can be widely used in a variety of next-generation energy storage systems.However,the current commercial graphite anodes of LI...Sodium-ion batteries(SIBs),as highly promising alternatives to lithium-ion batteries(LIBs),can be widely used in a variety of next-generation energy storage systems.However,the current commercial graphite anodes of LIBs could not intercalate sodium ions to appreciable extent,and the electrochemical irreversibility hinders further application.Searching for a suitable anode material is a critical issue for the successful development of SIBs.Herein,we report a convenient,fast,and large-scale preparation method of mesoporous FeS_(2) nanorods.Our specially designed one-dimensional mesoporous structure of FeS_(2) takes full advantage of ultra-high strain relaxation as well as fast Na^(+)transport rate arising from microstructural characteristics.As a result,the mesoporous FeS_(2) nanorods exhibited excellent sodium storage performance.The discharge capacity was retained at 711.1 mAh·g^(-1) after 450 cycles at a current density of 1000 mA·g^(-1).The special microstructure and superior performance of mesoporous FeS_(2) nanorods represent a critical step for transition metal sulfides electrode materials toward practical SIBs application.展开更多
Facial rejuvenation has changed over the last decade,evolving from the rhytidectomy to an approach that focuses on revolumization,due to a more complete understanding of the changes to bone and soft tissue that occur ...Facial rejuvenation has changed over the last decade,evolving from the rhytidectomy to an approach that focuses on revolumization,due to a more complete understanding of the changes to bone and soft tissue that occur with the aging face.Soft tissue augmentation using various injectable filler agents has gained popularity due to their nonsurgical,non-invasive procedures,instant cosmetic outcomes and limited recovery time.The skin filler market is booming and the variety of available skin fillers is increasing,providing the plastic surgeons many choices.Nonpermenant,biodegradable,resorbable agents may induce little complications,but they will normally disappear soon after injection.Semipermenant,biodegradable,biostimulary,nonresorbable fillers may induce a bit more complications,but they will normally disappear spontaneously in a few months.Permanent,nonresorbable fillers usually give rise to severe complications or reactions which may not disappear spontaneous.They may appear several years after the injection,and treatment is often insufficient.Unfortunately,the ideal filler with lasting effect but without any complication has not been discovered yet.In this review,we give an update on currently available skin filler agents,and what is new in recent 5 years.展开更多
With the development of autologous stem cells transplantation,the application of autologous fibroblast graft has been an important therapy in defect repair.In the past decade,amounts of studies have reported favorable...With the development of autologous stem cells transplantation,the application of autologous fibroblast graft has been an important therapy in defect repair.In the past decade,amounts of studies have reported favorable treatment effect and safety about the therapy.The material has the ability to produce human collagen in vivo.This article details recent scientific work of the cases,effect,injection technique,complications and safety of autologous fibroblast injection treatment.展开更多
文摘The increasing prevalence of hypothyroidism,which can cause endocrine dysfunction,abnormal neurological function,and cardiovascular and cerebrovascular injuries,poses serious health problems.Thyroid hormone supplementation constitutes the current main therapeutic method for hypothyroidism,yet it has many limitations and risks and is not suitable for everyone.Therefore,it is necessary to seek alternative and complementary treatment methods.It has been proven in practice that traditional Chinese medicine(TCM)possesses multi-channel comprehensive characteristics for the treatment of hypothyroidism and has more advantages than single thyroid hormone supplementation.Through a comprehensive examination of existing literature about TCM efficacy in addressing hypothyroidism,we have meticulously consolidated the most recent research findings on prescriptions and herbal substances employed in the treatment of this condition.Furthermore,we have explicated their respective functions in the management of hypothyroidism,thereby offering valuable perspectives and recommendations for the prospective utilization of natural remedies in its treatment.
基金supportedby the National Key R&D Program of China (No.2017YFA0402701)by the National Natural Science Foundation of China (Grant Nos. 11373026 and11433004)+2 种基金the Joint Research Fund in Astronomy(U1631237) under cooperative agreement between the National Natural Science Foundation of China and Chinese Academy of Sciencesby the Top TalentsProgram of Yunnan Province (2015HA030)by Yunnan University’s Research Innovation Fund for Graduate Students
文摘Previous observations have revealed an accretion disk and outflow motion in the high-mass starforming region G192.16–3.84, but collapse has not been reported before. Here we present molecular line and continuum observations toward the massive core G192.16–3.84 with the Submillimeter Array. C18 O(2–1) and HCO+(3–2) lines show pronounced blue profiles, indicating gas infalling in this region. This is the first time that infall motion has been reported in the G192.16–3.84 core. Two-layer model fitting gives infall velocities of 2.0±0.2 and 2.8±0.1 km s-1. Assuming that the cloud core follows a power-law density profile(ρ∝ r1.5), the corresponding mass infall rates are(4.7±1.7)×10-3 and(6.6±2.1)×10-3 M⊙yr-1 for C18 O(2–1) and HCO+(3–2), respectively. The derived infall rates are in agreement with the turbulent core model and those in other high-mass star-forming regions, suggesting that high accretion rate is a general requirement for forming a massive star.
基金the National Key Reasearch and Development Program of China(Nos.2017YFA0402701 and 2019YFA0405100)the National Natural Science Foundation of China(U1631237,11973013,11721303,11373026 and 11433004)the starting grant at the Kavli Institute for Astronomy and Astrophysics,Peking University(7101502016)。
文摘Thirty massive clumps associated with bright infrared sources were observed to detect the infall signatures and characterize infall properties in the envelope of the massive clumps by APEX telescope in CO(4-3)and C17O(3-2)lines.Eighteen objects exhibit a"blue profile"in the CO(4-3)line with virial parameters less than 2,suggesting that global collapse is taking place in these massive clumps.The CO(4-3)lines were fitted via the two-layer model in order to obtain infall velocities and mass infall rates.Derived mass infall rates range from 10-3 to 10-1 M☉yr*(-1).A positive relationship between clump mass and infall rate appears to indicate that gravity plays a dominant role in the collapsing process.Higher luminosity clumps have a larger mass infall rate,implying that those clumps with higher mass infall rates possess a higher star formation rate.
基金the Scientific Research Project of Beijing Municipal Education Commission(No.KM201911417004)the National Natural Science Foundation of China(Nos.51822201 and 51972292)。
文摘With the rising demand for fast-charging technology in electric vehicles and portable devices,significant efforts have been devoted to the development of the highrate batteries.Among numerous candidates,rechargeable aqueous zinc-ion batteries(ZlBs)are a promising option due to its high theoretical capacity,low redox potential of zinc metal anode and inherent high ionic conductivity of aqueous electrolyte.As the strong electrostatic interaction between Zn^(2+)and host generally leads to sluggish electrode kinetics,many strategies have been proposed to enhance fast(dis)charging performance.Herein,we review the state-of-the-art ultrafast aqueous ZIBs and focus on the rational electrode-designing strategies,such as crystal structure engineering,nanostructuring and morphology controlling,conductive materials introducing and organic molecule designing.Recent research directions and future perspectives are also proposed in this review.
基金This study was financially supported by the National Natural Science Foundation of China(Nos.21905239 and U1910208)the Natural Science Foundation of Shanxi Province of China(Nos.201901D211265,201901D211257,201901D111137 and 201901D211208)the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(Nos.2019L0609 and 2019L0605).
文摘Sodium-ion batteries(SIBs),as highly promising alternatives to lithium-ion batteries(LIBs),can be widely used in a variety of next-generation energy storage systems.However,the current commercial graphite anodes of LIBs could not intercalate sodium ions to appreciable extent,and the electrochemical irreversibility hinders further application.Searching for a suitable anode material is a critical issue for the successful development of SIBs.Herein,we report a convenient,fast,and large-scale preparation method of mesoporous FeS_(2) nanorods.Our specially designed one-dimensional mesoporous structure of FeS_(2) takes full advantage of ultra-high strain relaxation as well as fast Na^(+)transport rate arising from microstructural characteristics.As a result,the mesoporous FeS_(2) nanorods exhibited excellent sodium storage performance.The discharge capacity was retained at 711.1 mAh·g^(-1) after 450 cycles at a current density of 1000 mA·g^(-1).The special microstructure and superior performance of mesoporous FeS_(2) nanorods represent a critical step for transition metal sulfides electrode materials toward practical SIBs application.
文摘Facial rejuvenation has changed over the last decade,evolving from the rhytidectomy to an approach that focuses on revolumization,due to a more complete understanding of the changes to bone and soft tissue that occur with the aging face.Soft tissue augmentation using various injectable filler agents has gained popularity due to their nonsurgical,non-invasive procedures,instant cosmetic outcomes and limited recovery time.The skin filler market is booming and the variety of available skin fillers is increasing,providing the plastic surgeons many choices.Nonpermenant,biodegradable,resorbable agents may induce little complications,but they will normally disappear soon after injection.Semipermenant,biodegradable,biostimulary,nonresorbable fillers may induce a bit more complications,but they will normally disappear spontaneously in a few months.Permanent,nonresorbable fillers usually give rise to severe complications or reactions which may not disappear spontaneous.They may appear several years after the injection,and treatment is often insufficient.Unfortunately,the ideal filler with lasting effect but without any complication has not been discovered yet.In this review,we give an update on currently available skin filler agents,and what is new in recent 5 years.
文摘With the development of autologous stem cells transplantation,the application of autologous fibroblast graft has been an important therapy in defect repair.In the past decade,amounts of studies have reported favorable treatment effect and safety about the therapy.The material has the ability to produce human collagen in vivo.This article details recent scientific work of the cases,effect,injection technique,complications and safety of autologous fibroblast injection treatment.
