Objective:The aim of this study was to survey the coping style and related factors of elderly women with stress urinary incontinence(SUI)and provide a strong theoretical basis for promoting a positive coping style to ...Objective:The aim of this study was to survey the coping style and related factors of elderly women with stress urinary incontinence(SUI)and provide a strong theoretical basis for promoting a positive coping style to improve quality of life in these patients.Methods:Cross-sectional surveys addressing SUI cognition and coping techniques of 520 elderly women patients with SUI were administered between July 2013 and February 2014.Results:Elderly women with SUI had significantly higher avoidance and acceptanceresignation scores than the normal population(p<0.05).Age,marital status,education level and stress urinary incontinence cognitive level all influenced the medical coping style of these patients.Conclusions:Elderly female patients with SUI differ in the factors that influence their coping styles;therefore,clinical and community medical staff should include a comprehensive analysis that takes these factors into consideration when working with patients with SUI to guide them in adopting a positive coping style.展开更多
A sensitive and selective method was developed for the separation and characterization of related substances(RSs) in EVT-401 by hyphenated LC–MS techniques. Complete separation of the RSs was achieved with an Inertsi...A sensitive and selective method was developed for the separation and characterization of related substances(RSs) in EVT-401 by hyphenated LC–MS techniques. Complete separation of the RSs was achieved with an Inertsil ODS-SP column(250 mm×4.6 mm, 5 μm) by linear gradient elution using a mobile phase consisting of 0.2% formic acid solution, methanol and acetonitrile. EVT-401 was found to be susceptible to acid, alkaline and oxidative stresses, while relatively stable under photolytic and thermal dry stress conditions. Fourteen RSs including six process-related substances and eight degradation products were detected and identified in EVT-401 with positive ESI high-resolution TOF-MS analysis of their parent ions and the corresponding product mass spectra elucidation, and some of them were further verified by chemical synthesis and NMR spectroscopy. The specific LC–MS method developed for separation, identification and characterization of RSs is valuable for EVT-401 manufacturing process optimization and quality control.展开更多
环保型CuInSe_(2)量子点具有高消光系数和宽光谱吸收范围,在光电化学催化应用中展现了良好的发展前景.然而,CuInSe_(2)量子点较低的载流子分离能力和严重的界面电荷复合降低了其光电化学性能,制约了其应用.因此,我们设计并合成了具有Ⅱ...环保型CuInSe_(2)量子点具有高消光系数和宽光谱吸收范围,在光电化学催化应用中展现了良好的发展前景.然而,CuInSe_(2)量子点较低的载流子分离能力和严重的界面电荷复合降低了其光电化学性能,制约了其应用.因此,我们设计并合成了具有Ⅱ型能带排列的CuInSe_(2)/CuInS_(2)核/壳结构量子点,以促进载流子分离、减少界面缺陷;进一步通过调节In/Cu前驱体的摩尔比,产生铜空位.光物理性质研究表明,导带电子-铜空位捕获的空穴之间的辐射复合成为主要的复合方式,有效延长了载流子寿命,促进了载流子分离.因此,基于富铜空位的CuInSe_(2)/CuInS_(2)核壳量子点的光阳极获得了~8.0 mA cm^(-2)的最大饱和光电流密度,该性能是当前报道的CISe基量子点光电化学电池中的最高值之一.本工作提供了一种通过表面或内在缺陷的调控来促进光电化学应用中的电荷载流子分离和传输的有效方法.展开更多
Electrocaloric refrigeration represents an alternative solid-state cooling technology that has the potential to reach the ultimate goal of achieving zero-global-warming potential,highly efficient refrigeration,and hea...Electrocaloric refrigeration represents an alternative solid-state cooling technology that has the potential to reach the ultimate goal of achieving zero-global-warming potential,highly efficient refrigeration,and heat pumps.To date,both polymeric and inorganic oxides have demonstrated giant electrocaloric effect as well as respective cooling devices.Although both polymeric and inorganic oxides have been identified as promising cooling methods that are distinguishable from the traditional ones,they still pose many challenges to more practical applications.From an electrocaloric material point of view,electrocaloric nanocomposites may provide a solution to combine the beneficial effects of both organic and inorganic electrocaloric materials.This article reviews the recent advancements in polymer-based electrocaloric composites and the state-of-the-art cooling devices operating these nanocomposites.From a device point of view,it discusses the existing challenges and potential opportunities of electrocaloric nanocomposites.展开更多
Catalyst design relies heavily on electronic metal‐support interactions,but the metal‐support interface with an uncontrollable electronic or coordination environment makes it challenging.Herein,we outline a promisin...Catalyst design relies heavily on electronic metal‐support interactions,but the metal‐support interface with an uncontrollable electronic or coordination environment makes it challenging.Herein,we outline a promising approach for the rational design of catalysts involving heteroatoms as anchors for Pd nanoparticles for ethanol oxidation reaction(EOR)catalysis.The doped B and N atoms from dimethylamine borane(DB)occupy the position of the Ti_(3)C_(2)lattice to anchor the supported Pd nanoparticles.The electrons transfer from the support to B atoms,and then to the metal Pd to form a stable electronic center.A strong electronic interaction can be produced and the d‐band center can be shifted down,driving Pd into the dominant metallic state and making Pd nanoparticles deposit uniformly on the support.As‐obtained Pd/DB–Ti_(3)C_(2)exhibits superior durability to its counterpart(∼14.6%retention)with 91.1%retention after 2000 cycles,placing it among the top single metal anodic catalysts.Further,in situ Raman and density functional theory computations confirm that Pd/DB–Ti_(3)C_(2)is capable of dehydrogenating ethanol at low reaction energies.展开更多
Airy optical beams have emerged to hold enormous theoretical and experimental research interest due to their outstanding characteristics.Conventional approaches suffer from bulky and costly systems,as well as poor pha...Airy optical beams have emerged to hold enormous theoretical and experimental research interest due to their outstanding characteristics.Conventional approaches suffer from bulky and costly systems,as well as poor phase discretization.The newly developed metasurface-based Airy beam generators have constraints of polarization dependence or limited generation efficiency.Here,we experimentally demonstrate a polarization-independent silicon dielectric metasurface for generation of high-efficiency Airy optical beams.In our implementation,rather than synchronous manipulation of the amplitude and phase by plasmonic or Huygens’metasurfaces,we employ and impose a 3/2 phase-only manipulation to the dielectric metasurface,consisting of an array of silicon nanopillars with an optimized transmission efficiency as high as 97%.The resultant Airy optical beams possess extraordinarily large deflection angles and relatively narrow beam widths.Our validated scheme will open up a fascinating doorway to broaden the application scenarios of Airy optical beams on ultracompact photonic platforms.展开更多
The relative abundance of different components of the soil food web can vary tremendously in response to plant resource inputs.However,little is known about the mechanisms that plant resource regulates the energy flux...The relative abundance of different components of the soil food web can vary tremendously in response to plant resource inputs.However,little is known about the mechanisms that plant resource regulates the energy fluxes and soil community composition.Here,we experimentally reduced litter and root inputs for two years in China at low-,mid-,and high-latitude forests to explore the effects of plant-derived resource inputs on the nematode energy flux and community composition.Litter reduction at high and mid latitudes and root removal at low latitudes reduced nematode richness but did not alter nematode abundance.Besides,litter reduction reduced energy fluxes of bacterial-feeding nematodes at mid latitudes and energy fluxes of plant-feeding,bacterial-feeding and omnivorous-predatory nematodes at low latitudes,thus reducing the energy fluxes of total nematodes in mid-and low-latitude forests.By contrast,root removal reduced energy fluxes and relative energy flux of plant-feeding nematodes in high-and low-latitude forests.In most cases,nematode diversity in different trophic groups increased with increasing energy flux to nematodes.Taken together,our results suggest that the effects of plant resource inputs on nematode energy flux are affected by climate and plant resource type,which improves our understanding of plant-soil interactions.展开更多
Summary What is already known about this topic?A 20-month-old boy was admitted to the hospital with a maximum temperature of 40°C and a single convulsion.Unexpectedly,blood culture detected Francisella tularensis...Summary What is already known about this topic?A 20-month-old boy was admitted to the hospital with a maximum temperature of 40°C and a single convulsion.Unexpectedly,blood culture detected Francisella tularensis(F.tularensis)using the VITEK 2 Compact System.What is added by this report?After incubation of the patient’s blood for 48 hours,the cultured strain was identified as Campylobacter jejuni,named L8,excluding F.tularensis.In the genome sequence of L8,we found a novel Type VI Secretion System(T6SS),of which the conserved C-terminal VgrG domain from positions 561 to 884 showed significant changes.What are the implications for public health practice?It should be underscored that relying solely on automatic bacterial identification instruments for accurate strain identification is unreliable.Moreover,our study suggests that the potential effect of T6SS should be considered when studying the genetic features of a patient’s clinical phenotypes.展开更多
文摘Objective:The aim of this study was to survey the coping style and related factors of elderly women with stress urinary incontinence(SUI)and provide a strong theoretical basis for promoting a positive coping style to improve quality of life in these patients.Methods:Cross-sectional surveys addressing SUI cognition and coping techniques of 520 elderly women patients with SUI were administered between July 2013 and February 2014.Results:Elderly women with SUI had significantly higher avoidance and acceptanceresignation scores than the normal population(p<0.05).Age,marital status,education level and stress urinary incontinence cognitive level all influenced the medical coping style of these patients.Conclusions:Elderly female patients with SUI differ in the factors that influence their coping styles;therefore,clinical and community medical staff should include a comprehensive analysis that takes these factors into consideration when working with patients with SUI to guide them in adopting a positive coping style.
文摘A sensitive and selective method was developed for the separation and characterization of related substances(RSs) in EVT-401 by hyphenated LC–MS techniques. Complete separation of the RSs was achieved with an Inertsil ODS-SP column(250 mm×4.6 mm, 5 μm) by linear gradient elution using a mobile phase consisting of 0.2% formic acid solution, methanol and acetonitrile. EVT-401 was found to be susceptible to acid, alkaline and oxidative stresses, while relatively stable under photolytic and thermal dry stress conditions. Fourteen RSs including six process-related substances and eight degradation products were detected and identified in EVT-401 with positive ESI high-resolution TOF-MS analysis of their parent ions and the corresponding product mass spectra elucidation, and some of them were further verified by chemical synthesis and NMR spectroscopy. The specific LC–MS method developed for separation, identification and characterization of RSs is valuable for EVT-401 manufacturing process optimization and quality control.
基金supported by the National Natural Science Foundation of China (52011530123,52272134,and 51902019)Beijing Natural Science Foundation (2222061 and 2232082)+4 种基金the IndustryUniversity-Research Cooperative Education of Ministry of Education (2205064205258 and 220606429170400)Shandong Weiqiao Pioneering Group Company Limited (BINTECH-KJZX-20220831-09 and BINTECHKJZX-20220831-29)the support from Swedish Research Council (2021-05319)Danish Villum Foundation Experiment Grant (50350)Swedish Foundation for International Cooperation in Research and Higher Education (F2020/1618)。
文摘环保型CuInSe_(2)量子点具有高消光系数和宽光谱吸收范围,在光电化学催化应用中展现了良好的发展前景.然而,CuInSe_(2)量子点较低的载流子分离能力和严重的界面电荷复合降低了其光电化学性能,制约了其应用.因此,我们设计并合成了具有Ⅱ型能带排列的CuInSe_(2)/CuInS_(2)核/壳结构量子点,以促进载流子分离、减少界面缺陷;进一步通过调节In/Cu前驱体的摩尔比,产生铜空位.光物理性质研究表明,导带电子-铜空位捕获的空穴之间的辐射复合成为主要的复合方式,有效延长了载流子寿命,促进了载流子分离.因此,基于富铜空位的CuInSe_(2)/CuInS_(2)核壳量子点的光阳极获得了~8.0 mA cm^(-2)的最大饱和光电流密度,该性能是当前报道的CISe基量子点光电化学电池中的最高值之一.本工作提供了一种通过表面或内在缺陷的调控来促进光电化学应用中的电荷载流子分离和传输的有效方法.
基金supported by National Key R&D Program of China(No.2020YFA0711500)the National Natural Science Foundation of China(Grant No.52076127)+4 种基金the Natural Science Foundation of Shanghai(Grant Nos.20ZR1471700 and 22JC1401800)the State Key Laboratory of Mechanical System and Vibration(Grant No.MSVZD202211)the Oceanic Interdisciplinary Program of Shanghai Jiao Tong University(Project No.SL2020MS009)the Prospective Research Program at Shanghai Jiao Tong University(No.19X160010008)the Student Innovation Center,and the Instrumental Analysis Center at Shanghai Jiao Tong University.
文摘Electrocaloric refrigeration represents an alternative solid-state cooling technology that has the potential to reach the ultimate goal of achieving zero-global-warming potential,highly efficient refrigeration,and heat pumps.To date,both polymeric and inorganic oxides have demonstrated giant electrocaloric effect as well as respective cooling devices.Although both polymeric and inorganic oxides have been identified as promising cooling methods that are distinguishable from the traditional ones,they still pose many challenges to more practical applications.From an electrocaloric material point of view,electrocaloric nanocomposites may provide a solution to combine the beneficial effects of both organic and inorganic electrocaloric materials.This article reviews the recent advancements in polymer-based electrocaloric composites and the state-of-the-art cooling devices operating these nanocomposites.From a device point of view,it discusses the existing challenges and potential opportunities of electrocaloric nanocomposites.
基金Key Research and Development Program of Zhejiang,Grant/Award Number:2021C03022National Natural Science Foundation of China,Grant/Award Numbers:22002104,22272115,22202145,22202146,22102112,22202147。
文摘Catalyst design relies heavily on electronic metal‐support interactions,but the metal‐support interface with an uncontrollable electronic or coordination environment makes it challenging.Herein,we outline a promising approach for the rational design of catalysts involving heteroatoms as anchors for Pd nanoparticles for ethanol oxidation reaction(EOR)catalysis.The doped B and N atoms from dimethylamine borane(DB)occupy the position of the Ti_(3)C_(2)lattice to anchor the supported Pd nanoparticles.The electrons transfer from the support to B atoms,and then to the metal Pd to form a stable electronic center.A strong electronic interaction can be produced and the d‐band center can be shifted down,driving Pd into the dominant metallic state and making Pd nanoparticles deposit uniformly on the support.As‐obtained Pd/DB–Ti_(3)C_(2)exhibits superior durability to its counterpart(∼14.6%retention)with 91.1%retention after 2000 cycles,placing it among the top single metal anodic catalysts.Further,in situ Raman and density functional theory computations confirm that Pd/DB–Ti_(3)C_(2)is capable of dehydrogenating ethanol at low reaction energies.
基金National Natural Science Foundation of China(61775140,81701745)National Key Research and Development Program of China(2018YFA0701800)+1 种基金Shanghai Municipal Science and Technology Commission Innovation Action Plan(18DZ1100400)City University of Hong Kong(9610456)。
文摘Airy optical beams have emerged to hold enormous theoretical and experimental research interest due to their outstanding characteristics.Conventional approaches suffer from bulky and costly systems,as well as poor phase discretization.The newly developed metasurface-based Airy beam generators have constraints of polarization dependence or limited generation efficiency.Here,we experimentally demonstrate a polarization-independent silicon dielectric metasurface for generation of high-efficiency Airy optical beams.In our implementation,rather than synchronous manipulation of the amplitude and phase by plasmonic or Huygens’metasurfaces,we employ and impose a 3/2 phase-only manipulation to the dielectric metasurface,consisting of an array of silicon nanopillars with an optimized transmission efficiency as high as 97%.The resultant Airy optical beams possess extraordinarily large deflection angles and relatively narrow beam widths.Our validated scheme will open up a fascinating doorway to broaden the application scenarios of Airy optical beams on ultracompact photonic platforms.
基金the National Natural Science Foundation of China(31971534)the Innovation Scientists and Technicians Troop Construction Projects of Henan Province.
文摘The relative abundance of different components of the soil food web can vary tremendously in response to plant resource inputs.However,little is known about the mechanisms that plant resource regulates the energy fluxes and soil community composition.Here,we experimentally reduced litter and root inputs for two years in China at low-,mid-,and high-latitude forests to explore the effects of plant-derived resource inputs on the nematode energy flux and community composition.Litter reduction at high and mid latitudes and root removal at low latitudes reduced nematode richness but did not alter nematode abundance.Besides,litter reduction reduced energy fluxes of bacterial-feeding nematodes at mid latitudes and energy fluxes of plant-feeding,bacterial-feeding and omnivorous-predatory nematodes at low latitudes,thus reducing the energy fluxes of total nematodes in mid-and low-latitude forests.By contrast,root removal reduced energy fluxes and relative energy flux of plant-feeding nematodes in high-and low-latitude forests.In most cases,nematode diversity in different trophic groups increased with increasing energy flux to nematodes.Taken together,our results suggest that the effects of plant resource inputs on nematode energy flux are affected by climate and plant resource type,which improves our understanding of plant-soil interactions.
基金Supported by the National Natural Science Foundation of China (Grant No. 81874275 and 82102390)the Natural Science Foundation of Beijing Municipality (Grant No. 7242188)。
文摘Summary What is already known about this topic?A 20-month-old boy was admitted to the hospital with a maximum temperature of 40°C and a single convulsion.Unexpectedly,blood culture detected Francisella tularensis(F.tularensis)using the VITEK 2 Compact System.What is added by this report?After incubation of the patient’s blood for 48 hours,the cultured strain was identified as Campylobacter jejuni,named L8,excluding F.tularensis.In the genome sequence of L8,we found a novel Type VI Secretion System(T6SS),of which the conserved C-terminal VgrG domain from positions 561 to 884 showed significant changes.What are the implications for public health practice?It should be underscored that relying solely on automatic bacterial identification instruments for accurate strain identification is unreliable.Moreover,our study suggests that the potential effect of T6SS should be considered when studying the genetic features of a patient’s clinical phenotypes.