中国老年人口健康状态变动的辨识及影响因素的评估分析——基于SSAPUR 2015-2016年面板数据

老年人的健康问题不仅关系老年人自身的生存质量,而且会对整个社会经济产生深远影响,因此亟须基于大样本数据对老年人口健康状态变动及影响因素进行深入研究。本文基于中国城乡老年人生活状况抽样调查2015-2016年面板数据,在生物-心理-社会医学模式的分析框架下研究影响老年人口健康状态变动的因素。本研究分别采用固定效应的多元Logistic回归模型以及混合的多元Logistic回归模型进行分析。结果表明固定效应模型能够更好地识别老年人口从健康到失能或半失能变动的影响因素。老年人口的健康状况及其变动的影响因素都符合生物-心理-社会医学模式。健康老年人口半失能变动和失能变动的影响因素具有显著不同的分布,从健康到半失能变动主要受社会维度的变量影响,从健康到失能变动主要受生物维度的变量影响。失能变动比半失能变动受更多因素的影响,年龄、参加公益活动、自评经济状况、单独居住和孤独感仅对失能变动有显著影响,居住地和听力障碍仅对半失能变动有显著影响。建议对面临不同风险的老年人进行健康干预,有针对性地采取不同措施。同时注重预防和控制老年人慢性病发生发展,关注老年人听力减退状况,消除老年人贫困,关注老年人心理健康,开展多种适合老年人的活动,推动健康老龄化的实现。

矛盾同一性的情形、状态及其与斗争性的关系

矛盾同一性的情形、状态及其与斗争性的关系高铭仁，孙祥军对应于运动的两种状态，矛盾的同一性也具有两种情形和两种状态。在明确同一性两种情形的基础上，区分同一性的两种状态及其与斗争性的关系，在理论上和实践上都是很有意义的。１．在《矛盾论》中，毛泽东把矛盾的...

往“深”处下功夫

所谓深度报道,就是抓取事物变动状态的一个片断、一个瞬间,将它放在事物发展的整体背景和发展趋势中,运用客观分析和解释的手法,展示事物发展的内外因果关系,更丰富更深刻地表现事物所包含的意义.一般来说,深度报道告诉人们的不仅仅是发生了什么事情,更主要的是解释事情的发生原因和今后的发展趋势,指导人们的生活.

素质教育 德育先行

思想政治教育课是中学的一门主要课程,是对学生进行道德思想教育的重要环节。在当今社会主义市场经济条件下,一些不利于社会主义建设的利己主义思潮不仅败坏了社会风气,而且也在不断地腐蚀着青少年。因而,加强政治思想教育尤为重要。随着我国教育事业的不断发展,素质教育已被提上日程,而在素质教育中,首当其冲的应当是德育教育。中学生作为受教育的对象,其人生观、世界观尚未定型,理想的确立也还处在变动状态中。对此,教育工作者的任务就是要用正确的人生观、价值观、理想观、道德观来武装和教育学生,使之能够在市场经济的大环境下。

Design and Research on Artificial Rumen Continuous Culture System

[Objective] The paper was to study the dynamic changes of forage nutrient substance fermentation in rumen, and a set of continuous culture system of artificial rumen was designed. [Method] With in vivo as control, the simulating rumen fer- mentation effect in vitro culture system was evaluated. [Result] The simulation rumen fermentation test needed adaptive phase of 2-3 d, and the fermentation state was relatively stable within 3-9 d, with good effects. The test showed certain regularity variation with index value of rumen in vivo. [Conclusion] The continuous culture sys- tem of artificial rumen could be used as the ideal model to study the rumen fermen- tation in vivo.

Microstructure evolution and deformation behavior of as-cast NiTi shape memory alloy under compression

The as-cast ingot of equiatomic nickel-titanium shape memory alloy （SMA） was prepared via vacuum consumable arc melting. Differential scanning calorimetry （DSC）, X-ray diffraction （XRD） analysis, energy dispersive X-ray （EDX） measurement and microanalysis were adopted in order to understand the microstructure evolution and deformation behavior of the as-cast NiTi SMA under compression at various strain rates and temperatures. The microstructures of as-cast NiTi SMA composed of dendritic grains and equiaxed grains are inhomogeneous and show segregation. The as-cast NiTi SMA consists of B19′ martensite, B2 austenite and Ti2Ni phase simultaneously at room temperature. The as-cast NiTi SMA is sensitive to strain rate under compression at high temperature, at which NiTi SMA is characterized by dynamic recrystallization at strain rates of 0.1 and 0.01 s-1, but by dynamic recovery at strain rate of 0.001s-1. The strain rates have little influence on the true stress—strain curves as well as microstructure of NiTi SMA at room temperature and -100 °C.

Perturbation to Symmetries and Adiabatic Invariants of Nonholonomic Dynamical System of Relative Motion

Based on the theory of symmetries and conserved quantities, the exact invariants and adiabatic invariants of nonholonomic dynamical system of relative motion are studied. The perturbation to symmetries for the nonholonomic dynamical system of relative motion under small excitation is discussed. The concept of high-order adiabatic invariant is presented, and the form of exact invariants and adiabatic invariants as well as the conditions for their existence are given. Then the corresponding inverse problem is studied.

Automatic Organization, Thinking Motion and Dynamics of the Universe

There are many automatic organization phenomena and automatic organization unities in the universe. The automatic organization whole refers to a life body with the thinking. The thinking is the core of automatic organization. The thinking is at eternal restless motion and binds to substances. The universe, organism and society are the automatic organization unities or life systems with the thinking. The thinking can perceive, attract, drive, organize and control all individuals and it is a force of life structure or universal gravitation and universal repulsion. The thinking has a life structure, a template and dynamic of entity-life＇s automatic organization. Life body has five dynamic systems： the thinking motion and information flow, breathing motion, closed-loop current （particle flow） and energy flow, interaction among state-varying, state-stabilizing and control organizations and active ＆ automatic chemical-physical reactions, cardiac pulsation and active motion and transportation. Human, galaxies and society can change from low to high energy state initiatively. This is realized by controlling the desires of life entity via the thinking and breathing motions and by altering the body＇s binding forces dominating the life entity （in turn, by bond force, strong interaction and quark confinement）. All forces in the universe present in the universe of life： force of the thinking-universal gravitation and universal repulsion, electromagnetic interaction, bond force, strong interaction, quark confinement and weak interaction. Under the automatic organization of the thinking, these forces bind into a 4-season＇ whole. The united state of these forces is controlled by the thinking and breathing motion, which is capable of changing from 3-, 2- and 1-dimensional states to a 0-dimensional state.

Dynamics of Entanglement of Qutrit-Qutrit States with Stochastic Dephasing

The effect of stochastic dephasing on the dynamics of entanglement of qutrit-qutrit states is investigated by using negativity and bound entanglement defined with realignment criterion, From the analysis, we, find that the time evolution of quantum free entanglement and bound entanglement depends on the fluctuations of the stochastic variables and the parameters of the particular initial states of concern. Our results imply that some qutrits states display both distillability sudden death and entanglement sudden death, while some states do not display distillability sudden death but only entanglement sudden death.

Motion and Deformation State of the Tancheng-Lujiang Fault Zone Derived from GPS Data

Based on the rotation in the entire block and homogeneous strain model ( REHSM) ,we firstly analyze the motion and deformation features across the southern part of Tancheng- Lujiang fault zone from GPS velocity fields in period of 1999 ～ 2001,2001 ～ 2004,2004 ～ 2007 and 2007 ～ 2009. The results show a dextral strike-slip feature in the Weifang- Tancheng segment and sinistral strike-slip in the Tancheng-Lujiang segment. And the deformation perpendicular to the Tancheng-Lujiang fault zone alternates between tension and compression in different time-intervals. Then we resolve the relative rigid motion of blocks around Bohai Bay to the Circum-Bohai Sea area by deducting the entire rigid motion of the Circum-Bohai Sea area. We find that the Yanshan-Bohai seismic belt split this area into two parts,the northern part moving NW,and the other SE.

A Scoping Review： Transitioning Into Retirement With Chronic Health Disorders

A scoping review was conducted to report on the nature and extent of the literature addressing the transition through peri and post retirement for people living with chronic disorder（s）. The secondary purpose was to determine the extent that gender issues and the transition age （50-65） are specifically addressed. Of 3,256 titles identified, 111 articles meet the inclusion criteria. Information was often indirect but addressed varying health domains that significantly influence transitional stages toward retirement and illustrating the burden of chronic comorbid health problems, unequal gender positions with differences in labour force participation, retirement pensions, and changing social dynamics. Few studies directly addressed the complex interaction of chronic health outcomes, psychological well-being, social and financial health as a significant paradigm in determining a successful transition into retirement. Needed are prospective longitudinal studies that measure predictors and outcomes of retirement transitioning along with qualitative studies that define the decision-making process. Given the substantial differential impact in respect to retirement risk factors and opportunities, there must be consideration in design and analysis for future high quality research.

Preliminary Study on Simulation of Global Seismic Activities with Global Strain Rate

The relationship between the strain rate field observed by GPS and global distribution of strong earthquakes is analyzed in this work. How do we recognize the characteristics of global seismic activities with space observation technology? A preliminary model of Cellular Automata that could simulate the global seismic activities both in time and space has been established based on the results of global strain rate field provided by the GSRM Program. The grid of the model is evenly divided,which is consistent with that of GSRM.The status of each cell is its strain state,and is adjusted according to the evolution rules.Maximum shear strain criterion is adopted in the evolution of the Cellular Automata. The threshold for cells in surface expansion is 80% of that for those in compression. The preliminary model could in general simulate the main characteristics of the distribution of the global seismic activities. It could exhibit in general the global distribution of weak and active tectonic activities. Although the preliminary Cellular Automata model needs to be improved in many aspects,the result suggests the possibility of modeling the general features of rather complicated global seismic activities based on the strain rates obtained by GPS and other observations.

Damping behavior of Ti_(50.1)Ni_(49.9) alloy in reverse martensitic transformation region

Damping behavior of Ti50.1Ni49.9 shape memory alloy during reverse martensitic transformation has been investigated by dynamic mechanical analyzer in a dual-cantilever mode. With the increase of strain amplitude, internal friction （IF） of the alloy increases in martensite and austenite states while decreases in transformation region. Based on the regularity of IF attenuation in isothermal condition, IFTr and （IFpT＋ 1FI） are decomposed from the strain amplitude dependent IF in transformation region. For practical application of shape memory alloys as a damping material, it is significant to evaluate the damping capacity by eliminating the influence of IFTr and consider its time independent real IF （IFpT＋ IFI）.

Atomic scale electronic structure of the ferromagnetic semiconductor Cr2Ge2Te6

Cr_2Ge_2Te_6is an intrinsic ferromagnetic semiconductor with van der Waals type layered structure,thus represents a promising material for novel electronic and spintronic devices.Here we combine scanning tunneling microscopy and first-principles calculations to investigate the electronic structure of Cr_2Ge_2Te_6.Tunneling spectroscopy reveals a surprising large energy level shift and change of energy gap size across the ferromagnetic to paramagnetic phase transition,as well as a peculiar double-peak electronic state on the Cr-site defect.These features can be quantitatively explained by density functional theory calculations,which uncover a close relationship between the electronic structure and magnetic order.These findings shed important new lights on the microscopic electronic structure and origin of magnetic order in Cr_2Ge_2Te_6.

Traditional Chinese Medicine symptom patterns in patients with colorectal carcinoma

OBJECTIVE: To observe the symptom patterns(or syndromes) according to Traditional Chinese Medicine(TCM) theory in patients with various stages of colorectal cancer, and to observe the dynamic evolution process of these TCM patterns.METHODS: A prospective and cross-sectional questionnaire-based investigation was performed. Clinical data on TCM symptom patterns in patients with colorectal cancer in the perioperative period(210 cases) and adjuvant treatment period(160 cases)were collected. EPIData 3.1 together with frequency statistics and cluster analyses were performed to identify the TCM patterns based on symptom characteristics in patients with colorectal cancer, and to assess the dynamic changes in these patterns.RESULTS: In the perioperative period, from the first day of perioperative care to postoperative days 3,7, and 10, the TCM pattern showed a process of dynamic change from blood deficiency to deficiency of both Qi and Yin and the pattern of dampness and hot accumulative knotting. In the adjuvant treatment period, the TCM pattern changed from Qi deficiency and Yin deficiency inner-heat with dampness to a deficiency pattern, primarily including Yin deficiency of the liver and kidney, deficiency of Qi and blood, and spleen deficiency.CONCLUSION: Our study confirmed that variations in the dynamic evolution of TCM symptom patterns exist in patients with colorectal cancer during different treatment periods. This information is of great value in the individualized management of colorectal cancer.

Variation of Sediment Concentration and Its Drivers Under Different Soil Management Systems

In order to prevent soil erosion in southern China,a study was performed to determine the drivers of sediment concentration variation using simulated rainfall and four soil management systems under field condition.Four soil management systems,i.e.,forest and grass coverage(FG),forest coverage with disturbed soil surface(FD),contour tillage(CT) and downslope tillage(DT),were exposed to two rainfall intensities(40 and 54 mm h-1) using a portable rainfall simulator.The drivers of sediment concentration variation were determined by the variations of runoff rate and sediment concentration as well as their relationships.The effects of the four soil management systems in preventing water and soil losses were compared using runoff rates and sediment concentrations at steady state.At runoff initial stage,sediment concentration variation was mainly driven by rainfall and management.The degree of sediment concentration variation driven by flow varied with different soil management systems.Three best relationships between runoff rate and sediment concentration were identified,i.e.,reciprocal(CT),quadratic(FG and FD) and exponential(DT).At steady state,runoff rates of the four soil management systems varied slightly,whereas their sediment concentrations varied greatly.FG and CT were recommended as the best soil management systems for preventing water and soil losses.

The evolution of sexual imprinting in socially monogamous populations

Sexual imprinting is a common mechanism of mate preference learning. It is thought to influence how traits evolve and in some cases to promote speciation. Recently there has been increasing interest in how sexual imprinting itself evolves. Theoretical work on polygynous mating systems predicts that females will evolve paternal imprinting, which means they learn to prefer phenotypes expressed by their fathers. In nature however, females of some species learn to prefer phenotypes expressed by their mothers instead. We used a dynamical systems model and tools from adaptive dynamics to study how sexual imprinting evolves in species with socially monogamous mating systems. We considered cases in which the target trait for imprinting is un- der viability selection but is not a reliable signal of paternal investment. Thus, the target trait signals the genetic benefits rather than the parental care benefits of mate choice. When mating is socially monogamous and there is some extra-pair patemity, we show that maternal imprinting can be favored over paternal imprinting. Counterintuitively, females often become choosier when selecting social partners in systems where extra-pair mating is more frequent. That is, females may be more selective when choosing social partners that will sire a smaller percentage of their offspring. Our results offer new testable hypotheses, and ad- vance our understanding of the mechanisms that drive the evolution of mate choice strategies in nature .

Density Waves in One-Dimensional Granular Flows Driven by Non-Uniform Force Field

We introduce a non-uniform gravity-like force field to control the granular flow state in a quasi-one- dimensional system, and study the system by the molecular dynamics simulation. We find that the granular flow under non-uniform force field can be well described by a density wave with fixed time period if a fixed partiele number condition is used. The base frequency of the density wave does not depend on the position of the flow, while both the average density and oseillation amplitude of the flow vary continuously with the position. The formation of the density wave results from the aggregation of the granules in the decelerated region and the feed-back mechanism in the fixed particle number condition.

Geometric measure of quantum discord and the geometry of a class of two-qubit states

We investigate the geometric picture of the level surfaces of quantum entanglement and geometric measure of quantum discord(GMQD) of a class of X-states, respectively. This pictorial approach provides us a direct understanding of the structure of entanglement and GMQD. The dynamic evolution of GMQD under two typical kinds of quantum decoherence channels is also investigated. It is shown that there exists a class of initial states for which the GMQD is not destroyed by decoherence in a finite time interval. Furthermore, we establish a factorization law between the initial and final GMQD, which allows us to infer the evolution of entanglement under the influences of the environment.