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Comparison of grain yield and quality of different types of japonica rice cultivars in the northern Jiangsu plain,China

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Journal of Integrative Agriculture 2021年第8期20卷 2065-2076页

作者： BIAN jin-long REN Gao-lei XU Fang-fu ZHANG Hong-cheng WEI Hai-yan Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou 225000P.R.China

In recent years,an increasing number of different types of japonica rice cultivars have been released in the southern rice region of *** grain yield and quality of these new cultivars showed significant differences in large scale ***,the causes of the differences remain little ***,three typical types of japonica rice cultivars were used in this study to investigate their grain yield and quality.A scanning calorimeter(DSC),X-ray powder diffractometer(XRD),rapid viscosity analyzer(RVA)and taste analyzer were used to evaluate the cooking and eating *** results showed that the yield of non-soft hybrid japonica rice cultivars was significantly higher than that of non-soft inbred japonica rice cultivars and soft inbred japonica rice *** inbred japonica rice cultivars had a low amylose content and moderate protein content,which are the main reasons for the superior cooking and eating *** addition,the relative crystallinity of soft inbred japonica rice cultivars was significantly higher than that of non-soft inbred and non-soft hybrid japonica rice cultivars,which is considered the major factor resulting in higher transition temperature and gelatinization enthalpy(ΔH_(gel)).Non-soft hybrid japonica rice cultivars had a higher number of large starch granules than soft inbred and non-soft inbred japonica rice *** setback value(SB)and breakdown value(BD),indirectly reflecting the cooking and eating quality of the three types of japonica rice cultivars,also confirmed that soft inbred japonica rice cultivars with a low SB value and a high BD value had better palatability than the other two *** study provides guidance for future plantation of different types of japonica rice cultivars in large rice-producing areas.

关键词： yield eating and cooking quality starch amylose content thermal properties

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Successful upgrade to cardiac resynchronization therapy for cardiac implantation-associated left subclavian vein occlusion:A case report

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World Journal of Clinical Cases 2021年第13期9卷 3157-3162页

作者： jin-Yan Zhong Xiao-Wei Zheng Heng-Dong Li long-fu Jiang Department of Cardiology Ningbo Second HospitalNingbo 315010Zhejiang ProvinceChina Department of Geriatrics Ningbo First HospitalNingbo 315010Zhejiang ProvinceChina

BACKGROUND Subclavian vein stenosis or occlusion may be caused by a transvenous pacemaker,which makes the reimplantation of a new pacemaker lead *** pacemaker lead implantation-related subclavian vein occlusion may present difficulty with regard to cardiac resynchronization therapy(CRT)*** SUMMARY We report the case of a 46-year-old man who was admitted with total subclavian vein occlusion caused by a permanent pacemaker that had been implanted 2 years *** successfully treated this patient with an upgrade to a CRT pacemaker by utilizing transferable interventional coronary and radiological *** patient recovered uneventfully during the follow-up *** CRT upgrade is still a viable technique for the treatment of subclavian vein obstruction caused by previous pacemaker implantation.

关键词： Subclavian vein obstruction Cardiac resynchronization Therapy Pacemaker Venoplasty Radiological techniques Case report

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Asymptotic Behaviors of a Size-structured Population Model

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Acta Mathematicae Applicatae Sinica 2017年第4期33卷 1025-1042页

作者： Xian-long fu Qiong WU Department of Mathematics Shanghai Key Laboratory of PMMP East China Normal University Shanghai 200241 China

In this paper we devote ourselves to the study of the asymptotic behavior of a size-structured pop- ulation dynamics with random diffusion and delayed birth process. Within a semigroup framework, we discuss the local stability and asynchrony respectively for the considered population system under some conditions. We use for our discussion the techniques of operator matrices, Hille-Yosida operators, positivity, spectral analysis as well as Perron-Frobenius theory.

关键词： Population dynamics C0-semigroup stability asynchrony.

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Stability for Impulsive functional Differential Equations with Infinite Delays

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Acta Mathematica Sinica,English Series 2010年第5期26卷 909-922页

作者： Xian long fu Lei ZHOU Department of Mathematics East China Normal University Shanghai 200241 P. R. China

In this paper, some theorems of uniform stability and uniform asymptotic stability for impulsive functional differential equations with infinite delay are proved by using Lyapunov functionals and Razumikhin techniques... 详细信息

关键词： impulsive functional equation infinite delay stability Lyapunov functional

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Approximate Controllability of Second-order Semilinear Evolution Systems with Finite Delay

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Acta Mathematicae Applicatae Sinica 2021年第3期37卷 573-589页

作者： Xiao-feng SU Xian-long fu School of Mathematical Sciences Fudan UniversityShanghai 200433China School of Mathematical Sciences Shanghai Key Laboratory of PMMPEast China Normal UniversityShanghai200241China

In this work,we study the approximate controllability for a class of semilinear second-order control systems with finite *** conditions for approximate controllability are established by constructing fundamental solutions and using the resolvent condition and techniques on cosine family of linear *** illustrate the applications of the obtained results,an example is provided in the end.

关键词： approximate controllability second-order evolution equation fundamental solution cosine operator

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Understanding Tunneling Ionization of Atoms in Laser Fields using the Principle of Multiphoton Absorption

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Chinese Physics Letters 2019年第4期36卷 19-23页

作者： long Xu Li-Bin fu Graduate School of China Academy of Engineering Physics

The elaborate energy and momentum spectra of ionized electrons from atoms in laser fields suggest that the ionization dynamics described by tunneling theory should be modified. Although great efforts have been carried out within semiclassical models, there are few discussions describing the multiphoton absorption process within a quantum framework. Comparing the results obtained with the time-dependent Schr?dinger equation(TDSE)and the Keldysh–Faisal–Reiss(KFR) theory, we study the nonperturbative effects of ionization dynamics beyond the KFR theory. The difference in momentum spectra between multiphoton and tunneling regimes is understood in a unified picture with virtual multiphoton absorption processes. For the multiphoton regime, the momentum spectra can be obtained by coherent interference of each periodic contribution. However, the interference of multiphoton absorption peaks will result in a complex structure of virtual multiphoton bands in the tunneling regime. It is shown that the virtual spectra will be almost continuous in the tunneling regime instead of the discrete levels found in the multiphoton regime. Finally, with a model combining the TDSE and the KFR theory,we try to understand the different effects of virtual multiphoton processes on ionization dynamics.

关键词： Laser Multiphoton Absorption ionized electrons

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Optical characterization of single-crystal diamond grown by DC arc plasma jet CVD

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International Journal of Minerals,Metallurgy and Materials 2017年第12期24卷 1424-1430页

作者： Li-fu Hei Yun Zhao Jun-jun Wei jin-long Liu Cheng-ming Li Fan-xiu Lü Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China

Optical centers of single-crystal diamond grown by DC arc plasma jet chemical vapor deposition(CVD) were examined using a low-temperature photoluminescence(PL) technique. The results show that most of the nitrogen-vacancy(NV) complexes are present as NV-centers, although some H2 and H3 centers and B-aggregates are also present in the single-crystal diamond because of nitrogen aggregation resulting from high N_2 incorporation and the high mobility of vacancies under growth temperatures of 950–1000°C. furthermore, emissions of radiation-induced defects were also detected at 389, 467.5, 550, and 588.6 nm in the PL spectra. The reason for the formation of these radiation-induced defects is not clear. Although a Ni-based alloy was used during the diamond growth, Ni-related emissions were not detected in the PL spectra. In addition, the silicon-vacancy(Si-V)-related emission line at 737 nm, which has been observed in the spectra of many previously reported microwave plasma chemical vapor deposition(MPCVD) synthetic diamonds, was absent in the PL spectra of the single-crystal diamond prepared in this work. The high density of NV-centers, along with the absence of Ni-related defects and Si-V centers, makes the single-crystal diamond grown by DC arc plasma jet CVD a promising material for applications in quantum computing.

关键词： diamond single crystals direct current arc plasma jet chemical vapor deposition photoluminescence optical spectra

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Human neural stem cell-derived extracellular vesicles protect against ischemic stroke by activating the PI3K/AKT/mTOR pathway

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Neural Regeneration Research 2025年第11期20卷 3245-3258页

作者： Jiayi Wang Mengke Zhao Dong fu Meina Wang Chao Han Zhongyue Lv Liang Wang jing Liu Stem Cell Clinical Research Center The First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning ProvinceChina Dalian Innovation Institute of Stem Cell and Precision Medicine DalianLiaoning ProvinceChina Institute(College)of Integrative Medicine Dalian Medical UniversityDalianLiaoning ProvinceChina

Human neural stem cell-derived extracellular vesicles exhibit analogous functions to their parental cells,and can thus be used as substitutes for stem cells in stem cell therapy,thereby mitigating the risks of stem cell therapy and advancing the frontiers of stem cell-derived *** lays a foundation for the development of potentially potent new treatment modalities for ischemic ***,the precise mechanisms underlying the efficacy and safety of human neural stem cell-derived extracellular vesicles remain unclear,presenting challenges for clinical *** promote the translation of therapy based on human neural stem cell-derived extracellular vesicles from the bench to the bedside,we conducted a comprehensive preclinical study to evaluate the efficacy and safety of human neural stem cell-derived extracellular vesicles in the treatment of ischemic *** found that administration of human neural stem cell-derived extracellular vesicles to an ischemic stroke rat model reduced the volume of cerebral infarction and promoted functional recovery by alleviating neuronal *** human neural stem cell-derived extracellular vesicles reduced neuronal apoptosis by enhancing phosphorylation of phosphoinositide 3-kinase,mammalian target of rapamycin,and protein kinase B,and these effects were reversed by treatment with a phosphoinositide 3-kinase *** findings suggest that human neural stem cell-derived extracellular vesicles play a neuroprotective role in ischemic stroke through activation of phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin signaling ***,we showed that human neural stem cell-derived extracellular vesicles have a good in vivo safety ***,human neural stem cell-derived extracellular vesicles are a promising potential agent for the treatment of ischemic stroke.

关键词： behavior exosome extracellular vesicles ischemic stroke mammalian target of rapamycin(mTOR) middle cerebral artery occlusion neural stem cells neuronal apoptosis phosphoinositide 3-kinase(PI3K) protein kinase B(AKT)

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Male Parent Plays More Important Role in Heat Tolerance in Three-Line Hybrid Rice

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Rice science 2015年第3期22卷 116-122页

作者： fu Guan-fu ZHANG Cai-xia YANG Yong-jie XIONG Jie YANG Xue-qin ZHANG Xiu-fu jin Qian-yu TAO long-xing National Key Laboratory of Rice Biology China National Rice Research Institute Zhejiang Science &Technology University

Ten F1 combinations with their male and female parents were employed to evaluate their heat tolerance during the flowering and early grain filling stages. The rice plants were subjected to heat stress（39 °C–43 °C） for 1–15 d during flowering. Based on the heat stress index, heat tolerance was only observed in the F1 combinations H2（K22A × R207）, H3（Bobai A × R207） and H4（Bobai A × Minghui 63）, whereas the others received above 0.5000 of heat stress index. Both parents of the tolerant combination（heat-tolerant × heat-tolerant） possessed heat tolerance, whereas the susceptible combinations were crossed by heat-tolerant（sterile lines） × heat-susceptible（restorer lines）, heat-susceptible × heat-tolerant, or heat-susceptible × heat-susceptible parents. This result indicated that heat tolerance in rice was controlled by recessive genes. Thus, both parents should possess high temperature tolerance to develop heat-tolerant F1 combinations. furthermore, the heat stress index of F1 combinations was significantly correlated with the heat stress index of restorer lines but not with the heat stress index of maintainer lines. This result suggested that male parents play a more important role in heat-tolerant combinations than female parents. Therefore, the heat susceptibility of the hybrid rice in China is mainly due to the wide application of low-heat-tolerant restorer lines with high yield in three-line hybrid rice breeding.

关键词： hybrid rice genetic correlation analysis heat stress heat tolerance

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体认即反思

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河北学刊 2025年第1期45卷 11-19页

作者：沈顺福山东大学易学与中国古代哲学研究中心暨儒学高等研究院

体认是宋明理学的重要概念之一,主要是指由心灵自身所发动的、面对自身的活动。这种对自身的心灵活动便是现代哲学的反思。体认既是对天理的体合、实现心理合一,也是让本性澄明。理学家认为,自然的浊气遮蔽了天生的本性,而体认便是心灵... 详细信息

体认是宋明理学的重要概念之一,主要是指由心灵自身所发动的、面对自身的活动。这种对自身的心灵活动便是现代哲学的反思。体认既是对天理的体合、实现心理合一,也是让本性澄明。理学家认为,自然的浊气遮蔽了天生的本性,而体认便是心灵对气质浑浊的心灵的活动,通过纯洁气质,让性澄明。心理合一也是本性澄明——理即性;对本性的觉察也是对自身身份的觉悟,形成主体——性即体。对性的认可便是对理的接受与遵循;体认天理的活动便是合“理”的超越性活动。

关键词：体认反思理理学

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