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Search Results: 1 - 10 of 34440 matches for " Tianmei Zhou "
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Subjective well-being of Sichuan adolescents from Han, Qiang and Yi nationalities  [PDF]
Dingchu Wu, Tianmei Zhou
Health (Health) , 2010, DOI: 10.4236/health.2010.210178
Abstract: Using subjective well-being scale for adolescents, this article studies the subjective well-being of 900 adolescents from Han, Qiang and Yi nationalities in mainland of China. Results: In general, the SWB of the adolescents from the three nationalities is at the level of more than medium. Their SWB is significant difference in the aspects of nationality, grade and academic records. In view of interaction, their SWB is also of differ- rent dimensions because the interrelated effects are significant between genders and grades, between genders and academic records, between grades and academic records, and even between grades and their parental educational levels and parental occupations.
The Relationship between Parental Rearing Patterns and Teenagers Teasing  [PDF]
Tianmei Zhou, Li Luo
Psychology (PSYCH) , 2015, DOI: 10.4236/psych.2015.612143
Abstract: This paper examines how and to what extent parental rearing patterns influence the type of teenage teasing and its impact by making use of a Chinese version Egna Minnen Barndoms Uppfostran (EMBU). The participants include 582 adolescents in 7th-, 8th-, 9th-, 10th-, 11th- and 12th- grades from 2 schools in 2 cities in Sichuan province, China. The results show that teasing of physical appearance and social behavior occurs often, and that the impact of social behavior and performance is the greatest. The study finds that teenage teasing varies significantly depending on the subject’s gender, whether it occurs in urban or rural settings, whether the teenagers are left-behind or non-left-behind, as well as the level of paternal educational. Positive parental rearing practices (that involve emotional warmth) are also found to be negatively correlated with teenage teasing and its influence (except academics); while negative parental rearing patterns (rejection, punishment, control and favoring subject) are positively correlated with teenage teasing and its influence, among which paternal rejection and parental control have the greatest influence on teenagers teasing and its influence.
On the Intermediary Function of Coping Styles: Between Self-Concept and Subjective Well Being of Adolescents of Han, Qiang and Yi Nationalities  [PDF]
Tianmei Zhou, Dingchu Wu, Lin Lin
Psychology (PSYCH) , 2012, DOI: 10.4236/psych.2012.32021
Abstract: In order to know the influence of adolescents’ self-concept on the subjective well being and the function of coping styles in them, the author adopted the Tennessee Self-Concept Scale, Simplified Coping Style Scale and the Questionnaire on the Subjective Euphoria, and made a survey on six middle schools of Sichuan province and got back 867 valid answered questionnaires. The results show that 1) differences are obvious in self-concept, coping styles and subject well being among adolescents of Han, Qiang and Yi nationalities; 2) the positive self-concept exerts a notable positive influence on subjective well being, and the negative exerts a negative one; 3) the coping styles play an intermediary role in the influence of self-concept on the subjective well being. On the above basis, the author concludes that the self-concept exerts influence on the subjective well being directly as well as indirectly through the mediation of coping styles.
The Relationship between Consciousness of Professional Role and Work Autonomy of Rural Teachers from Sichuan Province  [PDF]
Tianmei Zhou, Jiewei Chen, Li Luo
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.411124
Abstract:

The paper has discussed the characteristics of consciousness of professional role of rural teachers and the relationship between consciousness of professional role and work autonomy. By randomly sampling, a survey is conducted among 265 primary and secondary school teachers from Sichuan province. It is found that the whole consciousness of professional role of rural teachers from Sichuan province is above average; the role consciousness of their collaborators and facilitators is the highest; the role consciousness of their social and economic status is the lowest. From the characteristics of different groups of teachers, there is no difference in gender, teaching age and education background, but there are significant differences between teachers of urban and rural areas, backbone teachers and nonbackbone teachers, teachers in key middle schools and non-key middle schools, and among teachers who teach Chinese, mathematics, foreign languages, Politics, History, Chemistry, Biology, Geography and teachers in primary and middle schools. Consciousness of professional role of teachers is significantly related to work autonomy. That is to say, consciousness of professional role of teachers can positively or negatively predict work autonomy.

Synthesis and Downconversion Emission Property of : Nanosheets and Nanotubes
Chao Qian,Tianmei Zeng,Hongrong Liu
Advances in Condensed Matter Physics , 2013, DOI: 10.1155/2013/519869
Abstract: Ytterbium oxide (Yb2O3) nanocrystals with different Eu3+ (1%, 2%, 5%, and 10%) doped concentrations were synthesized by a facile hydrothermal method, subsequently by calcination at 700°C. The crystal phase, size, and morphology of prepared samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results show that the as-prepared Yb2O3 nanocrystals with sheet- and tube-like shape have cubic phase structure. The Eu3+ doped Yb2O3 nanocrystals were revealed to have good down conversion (DC) property and intensity of the DC luminescence can be modified by Eu3+ contents. In our experiment the 1% Eu3+ doped Yb2O3 nanocrystals showed the strongest DC luminescence among the obtained Yb2O3 nanocrystals. 1. Introduction Recently, rare earth (RE) doped luminescence materials have attracted considerable attention owing to their excellent applications in optics, biological labeling and imaging, new light source, catalyst and so on, owing to their unique properties such as narrow band of spectrum, monochromatism and bright of emission light, much stronger light absorb, good thermal and chemical stabilities, and low biotoxicity [1–8]. Much more investigations have focused on fluorides because of their unique advantages such as low phonon energy and high upconversion (UC) and DC luminescence [9, 10]. For example, dual-modal (UC/DC) luminescence has been successfully realized through lanthanide (Ln) ions doped NaGdF4 core/shell nanocrystals by Chen’s group [11]. In addition to fluorides, RE doped oxides with much better high temperature thermal stability have also attracted much interests and they are applied in thin films, fiber laser, capacitor and precision optical glass, and so forth [12–16]. Chen’s group have investigated the phonon confinement effects on the luminescence dynamics in Gd2O3:Eu3+ nanotubes and provided experimental evidence of anomalous thermalization [14]. In addition, the synthesis process of RE oxide doped Ln ions is much more simple and controllable [17]. For example, the Tb4O7 and Y2O3 nanotubes with open ends were synthesized by a simple hydrothermal method without adding any template [18]. Via one-step hydrothermal method, the crystal phase, shape, and size controlling of these oxides can be easily obtained by changing the reaction parameters such as pH value of the solution, reaction temperature/time, and. As a result, DC luminescence of various RE oxides like Ln (Eu, Tb, Dy) doped Y2O3, Ce2O3 and Gd2O3 has been widely investigated and the important applications of these RE oxides have been reported
Postnatal BDNF Expression Profiles in Prefrontal Cortex and Hippocampus of a Rat Schizophrenia Model Induced by MK-801 Administration
Chunmei Guo,Yang Yang,Yun'ai Su,Tianmei Si
Journal of Biomedicine and Biotechnology , 2010, DOI: 10.1155/2010/783297
Abstract: Neonatal blockade of N-methyl-D-aspartic acid (NMDA) receptors represents one of experimental animal models for schizophrenia. This study is to investigate the long-term brain-derived neurotrophic factor (BDNF) expression profiles in different regions and correlation with “schizophrenia-like” behaviors in the adolescence and adult of this rat model. The NMDA receptor antagonist MK801 was administered to female Sprague-Dawley rats on postnatal days (PND) 5 through 14. Open-field test was performed on PND 42, and PND 77 to examine the validity of the current model. BDNF protein levels in hippocampus and prefrontal cortex (PFC) were analyzed on PND 15, PND 42, and PND 77. Results showed that neonatal challenge with MK-801 persistently elevated locomotor activity as well as BDNF expression; the alterations in BDNF expression varied at different developing stages and among brain regions. However, these findings provide neurochemical evidence that the blockade of NMDA receptors during brain development results in long-lasting alterations in BDNF expression and might contribute to neurobehavioral pathology of the present animal model for schizophrenia. Further study in the mechanisms and roles of the BDNF may lead to better understanding of the pathophysiology of schizophrenia.
Synthesis, Tunable Multicolor Output, and High Pure Red Upconversion Emission of Lanthanide-Doped Lu2O3 Nanosheets
Lingzhen Yin,Tianmei Zeng,Zhigao Yi,Chao Qian,Hongrong Liu
Advances in Condensed Matter Physics , 2013, DOI: 10.1155/2013/920369
Abstract: Yb3+ and Ln3+ (Ln?=?Er, Ho) codoped Lu2O3 square nanocubic sheets were successfully synthesized via a facile hydrothermal method followed by a subsequent dehydration process. The crystal phase, morphology, and composition of hydroxide precursors and target oxides were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and energy-dispersive X-ray spectroscope (EDS). Results present the as-prepared Lu2O3 crystallized in cubic phase, and the monodispersed square nanosheets were maintained both in hydroxide and oxides. Moreover, under 980?nm laser diode (LD) excitation, multicolor output from red to yellow was realized by codoped different lanthanide ions in Lu2O3. It is noteworthy that high pure strong red upconversion emission with red to green ratio of 443.3 of Er-containing nanocrystals was obtained, which is beneficial for in vivo optical bioimaging. 1. Introduction In the past few decades, lanthanide-doped upconversion phosphors have received considerable attention due to their application in display systems [1], optical processing sensors [2], solid-state lasers [3], fluorescent detection, and label of biomolecules [4]. More importantly, as the applications in biological assays and medical imaging, the conventional semiconductor quantum dots were limited due to cytotoxicity, photobleaching, photodamage and low signal-to-noise ratio for excitation with short wavelength (usually ultraviolet and visible light) [5, 6]. Upconversion nanocrystals (UCNCs), which overcome those problems and absorb long wavelength (usually near infrared (NIR) light) and emit short wavelength, were believed to be a new kind of fluorescence materials [7, 8]. Besides, UCNCs have low radiation damage, chemical stability, and deep penetration of NIR excitation source compared with conventional fluorescent materials [9, 10]. It is well known that the luminescence property of UCNCs is affected by a combination of different host/activator, doping concentrations, nanocrystal size, shape, and the coatings [11–13]. Therefore, it is important to select appropriate host matrixes for achieving excellent luminescence property. Lutetium oxides are one of the excellent host matrix for ionizing radiation detection and X-ray phosphors because of their unique properties: high atomic number of Lu (71) and high density (9.42?g/cm?3) [14, 15]. Besides, the ionic radius of Lu3+ (1.117??) is closer to the radius of Yb3+ (1.125??) than that of other lanthanide ions [16], which may improve the stability of UCNCs while doping high concentration Yb3+. More
网络群体性事件从众意向的影响因素研究
The Research of Influencing Factors of Conformity Intention in Internet Mass Incidents

王天梅,范峥,孙宝文,马燕林
WANG Tianmei
,FAN Zheng,SUN Baowen,MA Yanlin

- , 2017,
Abstract: 摘要 将合理行为理论引入网络群体性事件的研究,采用实证方法探究网络环境下从众意向的影响因素。通过增加网络环境变量修正Fishbein模型,针对正负两类情境进行对比研究。研究结果表明:虚拟社区的可信程度在正向和负向两类情境下,都是通过规范性社会影响、信息性社会影响和个体态度来影响网络群体性事件的从众意向,而意见领袖影响力仅在正向情境中对这些中介变量有正向影响,在负向情境中只对信息性社会影响起作用
Amplitude of Low-Frequency Oscillations in First-Episode, Treatment-Naive Patients with Major Depressive Disorder: A Resting-State Functional MRI Study
Li Wang, Wenji Dai, Yunai Su, Gang Wang, Yunlong Tan, Zhen Jin, Yawei Zeng, Xin Yu, Wei Chen, Xiaodong Wang, Tianmei Si
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0048658
Abstract: Background Resting-state fMRI is a novel approach to measure spontaneous brain activity in patients with major depressive disorder (MDD). Although most resting-state fMRI studies have focused on the examination of temporal correlations between low-frequency oscillations (LFOs), few studies have explored the amplitude of these LFOs in MDD. In this study, we applied the approaches of amplitude of low-frequency fluctuation (ALFF) and fractional ALFF to examine the amplitude of LFOs in MDD. Methodology/Principal Findings A total of 36 subjects, 18 first-episode, treatment-naive patients with MDD matched with 18 healthy controls (HCs) completed the fMRI scans. Compared with HCs, MDD patients showed increased ALFF in the right fusiform gyrus and the right anterior and posterior lobes of the cerebellum but decreased ALFF in the left inferior temporal gyrus, bilateral inferior parietal lobule, and right lingual gyrus. The fALFF in patients was significantly increased in the right precentral gyrus, right inferior temporal gyrus, bilateral fusiform gyrus, and bilateral anterior and posterior lobes of the cerebellum but was decreased in the left dorsolateral prefrontal cortex, bilateral medial orbitofrontal cortex, bilateral middle temporal gyrus, left inferior temporal gyrus, and right inferior parietal lobule. After taking gray matter (GM) volume as a covariate, the results still remained. Conclusions/Significance These findings indicate that MDD patients have altered LFO amplitude in a number of regions distributed over the frontal, temporal, parietal, and occipital cortices and the cerebellum. These aberrant regions may be related to the disturbances of multiple emotion- and cognition-related networks observed in MDD and the apparent heterogeneity in depressive symptom domains. Such brain functional alteration of MDD may contribute to further understanding of MDD-related network imbalances demonstrated in previous fMRI studies.
Development Status, Problems and Countermeasures of Large- and Intermediate-Scale Biogas Projects in Beijing’s Mountainous Counties  [PDF]
Zhongren Zhou, Zhujun Zhou
Journal of Power and Energy Engineering (JPEE) , 2013, DOI: 10.4236/jpee.2013.15010
Abstract: Developing large- and intermediate-scale biogas project is an important gripper ofBeijingrural energy construction and “Green Beijing” construction. The existing projects have made obvious energy and environment benefits, but the overall effects have not been fully exerted. There is still a large gap betweenBeijing’s ecological civilization goal and the operation effect. This paper takes biogas projects ofBeijingseven mountainous counties as examples, the development status, ecological environment construction and existing problems of operating are explained respectively. Finally, some countermeasures and suggestions are proposed for promoting the sustainable development of biogas project inBeijing, such as strengthening technical innovation and setting standards, innovating development patterns and planning reasonable layout, improve the maintenance mechanism and intensify policy support.
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