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不同饲养方式对溆浦鹅生长发育规律的影响

中国家禽 2017年第16期39卷 36-41页

作者：柳序曲湘勇皇海舒成福湖南农业大学动物科学技术学院湖南畜禽安全生产协同创新中心湖南长沙410128 湖南省怀化市溆浦县畜牧局湖南怀化419300

试验选用1日龄溆浦鹅60只,随机分为传统放牧组和配合饲料组,分别在0~13周龄进行称重,利用Logistic曲线方程对两组鹅各周龄体重变化进行拟合,并对0~13周龄两组鹅饲料转化比进行分析。结果显示:(1)两组鹅生长过程均呈S型曲线,0~3周龄和10... 详细信息

试验选用1日龄溆浦鹅60只,随机分为传统放牧组和配合饲料组,分别在0~13周龄进行称重,利用Logistic曲线方程对两组鹅各周龄体重变化进行拟合,并对0~13周龄两组鹅饲料转化比进行分析。结果显示:(1)两组鹅生长过程均呈S型曲线,0~3周龄和10~13周龄两组鹅体重之间差异不显著(P>0.05);4~9周龄两组鹅体重之间呈现显著或极显著差异(P<0.05或P<0.01);(2)不同饲养方式下溆浦鹅体重增长规律符合Logistic生长曲线,拟合度均在0.96以上,传统放牧组鹅生长拐点为9.5周龄,配合饲料组鹅生长拐点为8.0周龄;(3)从第7周起,两组鹅体重与13周龄体重均呈极显著正相关(P<0.01),回归方程分别为y=0.525x+0.235和y=0.468x+0.875;(4)随着日龄的增加,传统放牧组鹅饲料转化比先升高后降低,配合饲料组鹅饲料转化比逐渐增加。综上,不同饲养条件下鹅的生长发育规律符合Logistic曲线模型,但生长发育和饲料转化比之间存在一定差异,并且溆浦鹅在传统放牧饲养条件下具有较好的补偿生产能力。

关键词：溆浦鹅饲养方式生长曲线传统放牧

远隔器官后适应联合依达拉奉对急性心肌梗死患者心肌缺血再灌注损伤作用的研究

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重庆医科大学学报 2016年第9期41卷 937-940页

作者：舒承福严晓红谭知零史钰芳余传坤付文军武汉大学基础医学院生理学系湖北430060 三峡大学第二人民医院心内科湖北443000 三峡大学第一人民医院心内科湖北443000

目的:探讨远隔器官后适应联合应用依达拉奉对急性心肌梗死患者心肌缺血再灌注损伤的作用。方法:选取2013年01月至2014年12月我院收治的急性心肌梗死患者144例,随机分为I/R组(静脉溶栓治疗)、RPOC组(静脉溶栓治疗+远隔器官后适应治疗)、E... 详细信息

目的:探讨远隔器官后适应联合应用依达拉奉对急性心肌梗死患者心肌缺血再灌注损伤的作用。方法:选取2013年01月至2014年12月我院收治的急性心肌梗死患者144例,随机分为I/R组(静脉溶栓治疗)、RPOC组(静脉溶栓治疗+远隔器官后适应治疗)、E组(静脉溶栓+依达拉奉注射液静脉点滴)、ER组(静脉溶栓+远隔器官后适应+依达拉奉注射液静脉点滴),每组36例,分析各组患者肌酸激酶同工酶(creatine kinase isoenzymes,CKm B)及肌钙蛋白(cardiac troponinⅠ,c Tn I)分泌峰值及其动态变化,同时比较各组患者溶栓治疗后超声心动图指标,治疗后进行随访,观察不良事件发生情况。结果:CKm B、c Tn I峰值在I/R组、E组、RPOC组、ER组患者中依次降低,组间差异均具有统计学意义(P0.05);4组患者治疗后均随访3个月,随访期间均无失访和死亡病例,E组、EROC组、ER组再梗死、脑卒中、梗死后心绞痛、心力衰竭等不良事件发生率均明显低于I/R组(P0.05)。结论:远隔器官后适应及依达拉奉的应用都能显著减少CKm B和c Tn I的释放,减轻急性心肌梗死后心室重塑,改善室壁运动,从而减轻心肌再灌注的损伤,改善预后。

关键词：冠心病急性心肌梗死远隔器官后适应依达拉奉心肌缺血再灌注损伤

Nuclear structure of ^(76)Ge from proton-neutron interacting boson model calculations

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Science China(Physics,Mechanics & Astronomy) 2018年第1期61卷 44-50页

作者： DaLi Zhang chengfu Mu Department of Physics Huzhou University

The properties of low-lying states in 76Ge, especially the characteristics of the mixed-symmetry states, have been investigated within the neutron-proton interacting boson model （IBM-2）. By considering the relative energy of d proton boson to be different from that of neutron boson, the low-lying positive parity levels and M1, E2 transition strengths have been calculated. The IBM-2 calculated results are in good agreement with the experimental data. Particularly, the mixed-symmetry states have been reproduced quite well. The calculation and systematic analysis demonstrated that the collective character of 76Ge lies closest to the SUπv^＊（3）, with some possible Oπv（6） dynamic symmetry in IBM-2 viewpoint.

关键词： 76Ge energy levels E2 and M1 transition strengths IBM-2

Description of mixed symmetry states in 96Ru using IBM-2

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Science China(Physics,Mechanics & Astronomy) 2017年第4期60卷 32-39页

作者： DaLi ZHANG chengfu MU Department of Physics Huzhou University Huzhou 313000 China

We have investigated the properties of low-tyiag states iu 96Ru within the framework of the neutron-proton interacting boson model （IBM-2）, with special attention paid to the characteristics of the mixed symmetry states. By considering the relative energy of d proton boson to be different from that of neutron boson, the level energies and M1, E2 transition strengths have been calculated. The IBM-2 calculation is consistent with the experimental data of 96Ru both quantitatively and qualitatively. Particularly, the strong M1 transition between the 42^＋ and 41^＋ states has been reproduced nicely. The calculated results show that the M1 transition strength of B（M1,42^＋ → 41^＋） in 96Ru carl be described successfully by the IBM-2.

关键词： 96Ru mixed-symmetry M1 transition strengths IBM-2

Description of the shape coexistence in neutron-deficient ^(74,76)Kr with IBM2

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Science China(Physics,Mechanics & Astronomy) 2016年第8期59卷 43-49页

作者： DaLi Zhang chengfu Mu Department of Physics Huzhou University

The shape deformation and shape coexistence in ^(74,76) Kr isotopes are investigated within the framework of the proton-neutron interacting boson model(IBM2). By considering the relative energy of the d proton boson to be different from that of the neutron boson, the low-lying energy spectrum is in good agreement with experimental results both qualitatively and quantitatively. In particular, the low-lying 0_2^+ states associated with the shape-coexistence phenomenon are reproduced quite well. The calculated key sensitive quantities of B(E2) transition branch ratios are fairly consistent with the experimental data except for R_4. The predicated deformation parameter is very similar for the ground states in ^(74)Kr and ^(76)Kr, showing good agreement with the experimental result,and the calculated deformation parameter for the second 0^+ state in ^(74)Kr is close to the experimental data. The calculated results of the triaxiality parameter indicated an almost purely prolate shape for the ground state of ^(76)Kr and a mostly prolate shape with a little triaxiality for the ground state of ^(74)Kr. The calculations also show an oblate triaxial shape for the second 0^+ state in ^(76)Kr and maximum triaxiality for the second 0^+ state in ^(74)Kr. These results confirm the importance of the triaxial deformation for the description of such shape coexistence.

关键词： ^(74)Kr ^(76)Kr shape coexistence low-ling energy states IBM2

Description of spectrum and electromagnetic transitions in ^(94)Mo through the proton-neutron interacting boson model

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Science China(Physics,Mechanics & Astronomy) 2018年第1期61卷 37-43页

作者： chengfu Mu DaLi Zhang Department of Physics Huzhou University

We investigated the properties of low-lying states in ^(94)Mo within the framework of the proton-neutron interacting boson model(IBM-2), with special focus on the characteristics of mixed-symmetry states. We calculated level energies and M1 and E2 transition strengths. The IBM-2 results agree with the available quantitative and qualitative experimental data on ^(94)Mo. The properties of mixed-symmetry states can be well described by IBM-2 given that the energy of the d proton boson is different from that of the neutron boson, especially for the transition of B(M1, 4_2^+→ 4_1^+).

关键词： 94Mo mixed-symmetry states M1 and E2 transition strengths IBM-2

Oligodendrocytes in central nervous system diseases:the effect of cytokine regulation

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Neural Regeneration Research 2024年第10期19卷 2132-2143页

作者： chengfu Zhang Mengsheng Qiu Hui Fu Center for Cognition and Brain Disorders The Affiliated Hospital of Hangzhou Normal UniversityHangzhouZhejiang ProvinceChina Department of Psychiatry National Clinical Research Center for Mental Disordersand National Center for Mental DisordersThe Second Xiangya Hospital of Central South UniversityChangshaHunan ProvinceChina Institute of Life Sciences Key Laboratory of Organ Development and Regeneration of Zhejiang ProvinceCollege of Life and Environment SciencesHangzhou Normal UniversityHangzhouZhejiang ProvinceChina Key Laboratory of Aging and Cancer Biology of Zhejiang Province School of Basic Medical SciencesHangzhou Normal UniversityHangzhouZhejiang ProvinceChina

Cytokines including tumor necrosis factor, interleukins, interferons, and chemokines are abundantly produced in various diseases. As pleiotropic factors, cytokines are involved in nearly every aspect of cellular functions such as migration, survival, proliferation, and differentiation. Oligodendrocytes are the myelin-forming cells in the central nervous system and play critical roles in the conduction of action potentials, supply of metabolic components for axons, and other functions. Emerging evidence suggests that both oligodendrocytes and oligodendrocyte precursor cells are vulnerable to cytokines released under pathological conditions. This review mainly summarizes the effects of cytokines on oligodendrocyte lineage cells in central nervous system diseases. A comprehensive understanding of the effects of cytokines on oligodendrocyte lineage cells contributes to our understanding of central nervous system diseases and offers insights into treatment strategies.

关键词： astrocyte central nervous system disease CXC chemokine cytokine interferonγ interleukin microglia oligodendrocyte oligodendrocyte precursor cell tumor necrosis factorα

The Role of Authoritative Leadership in the Rise of Western Great Powers in Modern Times

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学术界 2015年第3期 267-272页

作者： Zhao chengfu College of Political Science and Public Administration Henan Normal University Xinxiang Henan 453007

The authoritative leadership of a country is the legal political leadership approved by the people. Authoritative leadership has played important and irreplaceable roles in the rise of various western great powers in various forms in modern times. However,they cannot promote the development of every country in every period because of the limitations determined by the defects existing in themselves.

关键词：权威近代西方可替代

A dual-use probe for nano-metric photoelectric characterization using a confined light field generated by photonic crystals in the cantilever

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Nano Research 2021年第11期14卷 3848-3853页

作者： Yaoping Hou chengfu Ma Wenting Wang Yuhang Chen Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei230027China Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes University of Science and Technology of ChinaHefei230027China

We propose a plasmonic atomic force microscopy (AFM) probe, which takes a part of the laser beam for monitoring cantilever deflection as the excitation light source. Photonic crystal cavities are integrated near the cantilever’s free end where the laser spot locates. The transmitted light excites surface plasmon polaritons on the metal-coated tip and induces a confined hot-spot at the tip apex. Numerical simulations demonstrate that the plasmonic probe can couple a tilted, linearly polarized beam efficiently and yield a remarkable local electromagnetic enhancement with the intensity being around 21 times stronger than that of the original probe. For demonstration, we employ the plasmonic probe in electrostatic force microscopy and scanning Kelvin probe microscopy to study the impact of local light field on the photoelectric characteristics of SiO_(2) and Au nanoparticles. Compared with the original probe, obvious differences are observed in the electrostatic force gradients on SiO_(2) nanoparticles and in the surface potentials of Au nanoparticles. The plasmonic probe can enable AFM as a powerful tool for simultaneous optical, mechanical and electrical characterizations.

关键词： atomic force microscopy near-field scanning optical microscopy plasmonic probe photoelectric characterization surface plasmon polaritons