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Search Results: 1 - 10 of 15660 matches for " Ding Na "
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Painting Therapy in Cancer Care: A Descriptive Systematic Review  [PDF]
Zhenting Ding, Yanqiong Ouyang, Na Zhang
Open Journal of Nursing (OJN) , 2019, DOI: 10.4236/ojn.2019.92009
Abstract: Background: Despite art therapy has been widely used in cancer population to improve their physical and mental health, painting therapy, as one form of art therapy, is seldom applied to adult cancer patients independently. Therefore, how painting therapy affects adult cancer patients’ health outcomes needed to be explored sufficiently. Objectives: The purpose of this review was to assess and synthesize the latest evidence of painting therapy concerning adult cancer patients, and to provide some inspiration for clinical staff. Methods: A literature research of PubMed, Web of Science, Cochrane Library, EMBASE, CINAHL, PsychoInfo, Psydex, CENTRAL, Google Scholar, British Library, CNKI, Wanfang, CQVIP electronic databases were undertaken with the following key words: art therapy, painting, drawing, cancer, neoplasm, tumor, carcinoma and oncology. A narrative synthesis was used according to PRISMA and the quality of study was assessed using acritical assessment tool. Results: Eleven papers reporting nine different research projects met the inclusion criteria. Generally speaking, painting therapy positively affected health outcomes. The impacts on patients include improvements in quality of life, coping with disease, mental health and somatic symptoms. However, inconsistency still exists. Three studies failed to show positive effects of painting therapy on post-traumatic growth, distress and coping behavior in participants. Conclusion: Robust evidence was found in rehabilitation of patients with various types of cancer. Painting therapy evidently affected cancer patients in a positive direction. However, the application of painting therapy to cancer patients needs to be explored further due to few studies on this topic.
The (1+1)-dimensional spatial solitons in media with weak nonlinear nonlocality

Ding Na,Guo Qi,

中国物理 B , 2009,
Abstract: We study the propagation of (1+1)-dimensional spatial soliton in a nonlocal Kerr-type medium with weak nonlocality. First, we show that an equation for describing the soliton propagation in weak nonlocality is a nonlinear Schr?dinger equation with perturbation terms. Then, an approximate analytical solution of the equation is found by the perturbation method. We also find some interesting properties of the intensity profiles of the soliton.
A Rigorous Approach In Testing Service Component Architectures
Na Zhang,Xiaoan Bao,Zuohua Ding
Lecture Notes in Engineering and Computer Science , 2010,
Comparison of metabolic abnormalities in patients with new-diagnostic polycystic ovary syndrome and with new-diagnostic Type 2 diabetes mellitus  [PDF]
Fang Fang, Minyu Gu, Lin Chen, Na Li, Xiaoying Ding, Yongde Peng
Journal of Diabetes Mellitus (JDM) , 2014, DOI: 10.4236/jdm.2014.41010

Background: Metabolic abnormalities have been widely studied in women with polycystic ovary syndrome (PCOS) and in patients with Type 2 diabetes mellitus (T2DM). However, there are few studies on the comparison of the metabolic disturbances between the two diseases although they have partly common pathogenesis. This study compares the metabolic parameters of PCOS and T2DM, and evaluates the association between metabolic parameters and gonadotropic hormones. Methods: Fifity newly diagnosed PCOS women and 56 newly diagnosed Type 2 diabetes women were enrolled in the study. The metabolic parameters including body mass index, waist to hip ratio, blood pressure, total cholesterol, triglycerides, high-density and low-density lipoprotein cholesterol, fasting and postprandial plasma glucose, fasting and postprandial plasma insulin, HOMA-IR index and uric acid, along with the gonadal and gonadotropic hormones were analyzed between the two groups. The lutein hormone (LH) responses to the GnRH stimulating test were compared between different glucose tolerance groups in PCOS women. The peak values of LH in the GnRH test are studied with metabolic parameters using Pearson correlation analysis. Results: PCOS patients have higher body weight index, waist to hip ratio, fasting and postprandial insulin, HOMA-IR and uric acid than T2DM patients. There are no significant differences in lipid metabolism excluding the age influence. On the other hand, T2DM patients have significantly higher systolic blood pressure and plasma glucose than those in PCOS patients. But there is less clinical significance in the level of plasma glucose. After GnRH injection in PCOS women, there are significant differences in LH reaction between the three groups with different glucose tolerance. Conclusion: Women with PCOS have more severe metabolic disturbance than women with T2DM except for systolic blood pressure. Insulin resistance affects the function of thalamus-pituitary-gonad axis.

Normobaric hypoxia-induced brain damage in wistar rat  [PDF]
Ding-Yu Hu, Qin Li, Bo Li, Rong-Ji Dai, Li-Na Geng, Yu-Lin Deng
Journal of Biomedical Science and Engineering (JBiSE) , 2009, DOI: 10.4236/jbise.2009.28092
Abstract: The biochemical indicators of wistar rat under low oxygen concentration, such as brain water content, necrosis, lactic acid and Na+-K+-ATPase, was detected to evaluate normobaric hypoxia-induced brain damage and to investigate the mechanism of wistar rat brain injury. Histopathological changes in brain tissue induced by hypoxia were investigated via hematoxylin and eosin stain (HE). Hypoxia induced factor-1α (HIF-1α) expression in brain was confirmed using immunohistochemistry. The results showed that the level of lactic acid was positively correlated with the degree of hypoxia, while concentration-dependent decrease in total Na+-K+-ATPase activity was observed. Compared with the control group, hypoxia group had a significant difference on brain water content under severe hypoxic conditions, the rate of brain necrosis increased obviously, followed by the increase of lactic acid level and the decrease of Na+-K+-ATPase activity. Histopathological analysis of brain confirmed that there was neuronal cell death in hippocampal gyrus. HIF-1α expression enhanced the hypoxia adaptation capability of the rat model through regulating the expressions of multiple genes. Lactic acid, Na+-K+-ATPase and HIF- 1α played an important role in brain injury as a possible mechanism.
Complex positive selection pressures drive the evolution of HIV-1 with different co-receptor tropisms
ChiYu Zhang,Na Ding,KePing Chen,RongGe Yang
Science China Life Sciences , 2010, DOI: 10.1007/s11427-010-4066-5
Abstract: HIV-1 co-receptor tropism is central for understanding the transmission and pathogenesis of HIV-1 infection. We performed a genome-wide comparison between the adaptive evolution of R5 and X4 variants from HIV-1 subtypes B and C. The results showed that R5 and X4 variants experienced differential evolutionary patterns and different HIV-1 genes encountered various positive selection pressures, suggesting that complex selection pressures are driving HIV-1 evolution. Compared with other hypervariable regions of Gp120, significantly more positively selected sites were detected in the V3 region of subtype B X4 variants, V2 region of subtype B R5 variants, and V1 and V4 regions of subtype C X4 variants, indicating an association of positive selection with co-receptor recognition/binding. Intriguingly, a significantly higher proportion (33.3% and 55.6%, P<0.05) of positively selected sites were identified in the C3 region than other conserved regions of Gp120 in all the analyzed HIV-1 variants, indicating that the C3 region might be more important to HIV-1 adaptation than previously thought. Approximately half of the positively selected sites identified in the env gene were identical between R5 and X4 variants. There were three common positively selected sites (96, 113 and 281) identified in Gp41 of all X4 and R5 variants from subtypes B and C. These sites might not only suggest a functional importance in viral survival and adaptation, but also imply a potential cross-immunogenicity between HIV-1 R5 and X4 variants, which has important implications for AIDS vaccine development.
Diagnostic value of cerebrospinal fluid CFP-10 and Ag85 detection on tuberculous meningitis
WANG Dan,HE Ling,CHU Feng-na,DING Man
Chinese Journal of Contemporary Neurology and Neurosurgery , 2013, DOI: 10.3969/j.issn.1672-6731.2013.02.007
Abstract: Background Nowadays, the early diagnosis of tuberculous meningitis (TBM) is still one of the clinical difficulties, so the research focus is to seek out a specific marker of early TBM. This study is to evaluate the value of culture filtrate protein -10 (CFP-10) and Ag85 complex in cerebrospinal fluid (CSF) for the diagnosis of TBM. Methods According to the diagnostic criteria of TBM, 86 patients were divided into 3 groups: 30 patients with TBM; 27 with intracranial infection of non-TBM; 29 controls. CSF samples were collected by standard lumbar puncture and were used for detection of CFP-10 and Ag85 by enzyme-linked immunosorbent assay (ELISA). Results The median concentrations of CFP-10 and Ag85 in CSF of the TBM group were 0.74 and 1.10 pg/ml. The average concentrations of CFP-10 and Ag85 in the intracranial infection of non-TBM group and control group were (0.02 ± 0.01), (0.54 ± 0.10) and (0.02 ± 0.01), (0.52± 0.11)pg/ml respectively. The levels of CFP-10 and Ag85 in the TBM group were higher than that in the intracranial infection of non-TBM and the control group, and the differences were statistically significant (H = 60.958, P = 0.000; H = 57.972, P = 0.000), but there was no significant difference bewteen the intracranial infection of non-TBM group and the control group (t = 1.128, P = 0.253; t = 0.980, P = 0.329). Conclusion The levels of CFP-10 and Ag85 in the TBM group were significantly different from non-TBM group and control group. Detection of the two markers can be helpful in the early diagnosis of TBM.
Age-Specific Prostate Specific Antigen Cutoffs for Guiding Biopsy Decision in Chinese Population
Rong Na, Yishuo Wu, Jianfeng Xu, Haowen Jiang, Qiang Ding
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0067585
Abstract: Background Age-specific prostate specific antigen (PSA) cutoffs for prostate biopsy have been widely used in the USA and European countries. However, the application of age-specific PSA remains poorly understood in China. Methods Between 2003 and 2012, 1,848 men over the age of 40, underwent prostate biopsy for prostate cancer (PCa) at Huashan Hospital, Shanghai, China. Clinical information and blood samples were collected prior to biopsy for each patient. Men were divided into three age groups (≤60, 61 to 80, and >80) for analyses. Digital rectal examination (DRE), transrectal ultrasound (prostate volume and nodule), total PSA (tPSA), and free PSA (fPSA) were also included in the analyses. Logistic regression was used to build the multi-variate model. Results Serum tPSA levels were age-dependent (P = 0.008), while %fPSA (P = 0.051) and PSAD (P = 0.284) were age-independent. At a specificity of 80%, the sensitivities for predicting PCa were 83%, 71% and 68% with tPSA cutoff values of 19.0 ng/mL (age≤60),21.0 ng/mL (age 61–80), and 23.0 ng/mL (age≥81). Also, sensitivities at the same tPSA levels were able to reach relatively high levels (70%–88%) for predicting high-grade PCa. Area (AUC) under the receive operating curves (ROCs) of tPSA, %fPSA, PSAD and multi-variate model were different in age groups. When predicting PCa, the AUC of tPSA, %fPSA, PSAD and multi-variate model were 0.90, 0.57, 0.93 and 0.87 respectively in men ≤60 yr; 0.82, 0.70, 0.88 and 0.86 respectively in men 61–80 yr; 0.79, 0.78, 0.87 and 0.88 respectively in men>80 yr. When predicting Gleason Score ≥7 or 8 PCa, there were no significant differences between AUCs of each variable. Conclusion Age-specific PSA cutoff values for prostate biopsy should be considered in the Chinese population. Indications for prostate biopsies (tPSA, %fPSA and PSAD) should be considered based on age in the Chinese population.
Inhomogeneous dynamic nuclear polarization and suppression of electron-polarization decay in a quantum dot
Na Wu,Wenkui Ding,Anqi Shi,Wenxian Zhang
Physics , 2013,
Abstract: We investigate the dynamic nuclear polarization process by frequently injecting polarized electron spins into a quantum dot. Due to the suppression of the direct dipolar and indirect electron-mediated nuclear spin interactions, by the frequently injected electron spins, the analytical predictions under the independent spin approximation agree well with quantum numerical simulations. Our results show that the acquired nuclear polarization is highly inhomogeneous, proportional to the square of the local electron-nuclear hyperfine interaction constant, if the injection frequency is high. Utilizing the inhomogeneously polarized nuclear spins as an initial state, we further show that the electron-polarization decay time can be extended 100 times even at a relatively low nuclear polarization (<20%), without much suppression of the fluctuation of the Overhauser field. Our results lay the foundation for future investigations of the effect of DNP in more complex spin systems, such as double quantum dots and nitrogen vacancy centers in diamonds.
Energy Spectral Property in an Isolated CME-driven Shock
Xin Wang,Yihua Yan,Mingde Ding,Na Wang,Hao Shan
Physics , 2015,
Abstract: Observations from multiple spacecraft show that there are energy spectral "breaks" at 1-10MeV in some large CME-driven shocks. However, numerical models can hardly simulate this property due to high computational expense. The present paper focuses on analyzing these energy spectral "breaks" by Monte Carlo particle simulations of an isolated CME-driven shock. Taking the Dec 14 2006 CME-driven shock as an example, we investigate the formation of this energy spectral property. For this purpose, we apply different values for the scattering time in our isolated shock model to obtain the highest energy "tails", which can potentially exceed the "break" energy range. However, we have not found the highest energy "tails" beyond the "break" energy range, but instead find that the highest energy "tails" reach saturation near the range of energy at 5MeV. So, we believe that there exists an energy spectral "cut off" in an isolated shock. If there is no interaction with another shock, there would not be formation of the energy spectral "break" property.
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