Publications (2)6.16 Total impact
Article: A comparison of the clinical characteristics of women with recurrent major depression with and without suicidal symptomatology.[show abstract] [hide abstract]
ABSTRACT: BACKGROUND: The relationship between recurrent major depression (MD) in women and suicidality is complex. We investigated the extent to which patients who suffered with various forms of suicidal symptomatology can be distinguished from those subjects without such symptoms.Method We examined the clinical features of the worst episode in 1970 Han Chinese women with recurrent DSM-IV MD between the ages of 30 and 60 years from across China. Student's t tests, and logistic and multiple logistic regression models were used to determine the association between suicidality and other clinical features of MD. RESULTS: Suicidal symptomatology is significantly associated with a more severe form of MD, as indexed by both the number of episodes and number of MD symptoms. Patients reporting suicidal thoughts, plans or attempts experienced a significantly greater number of stressful life events. The depressive symptom most strongly associated with lifetime suicide attempt was feelings of worthlessness (odds ratio 4.25, 95% confidence interval 2.9-6.3). Excessive guilt, diminished concentration and impaired decision-making were also significantly associated with a suicide attempt. CONCLUSIONS: This study contributes to the existing literature on risk factors for suicidal symptomatology in depressed women. Identifying specific depressive symptoms and co-morbid psychiatric disorders may help improve the clinical assessment of suicide risk in depressed patients. These findings could be helpful in identifying those who need more intense treatment strategies in order to prevent suicide.Psychological Medicine 04/2012; · 6.16 Impact Factor
Article: Self-propagating Combustion Synthesis of Nanocrystalline Yttrium Iron Oxide Solid Solution Photocatalysts[show abstract] [hide abstract]
ABSTRACT: YFeO3 and its solid solutions responding to visible light were prepared by a self-propagating combustion method using yttrium nitrate and iron nitrate as precursors and glycine as a fuel. The crystalline phase structures, BET surface areas, and morphologies of as-prepared samples were characterized by X-ray powder diffraction (XRD), N-2-sorption, UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results show that the purity of YFeO3 samples prepared via self-propagating combustion method can be effectively enhanced by metal-doping. The average crystalline size of assynthesized samples is 55 nm. Compared with YFeO3, the absorption edge of the solid solution samples are red shifted. The YFeO3 and its solid solutions exhibit noticeable photocatalytic activities for the degradation of methylene blue (MB) and rhodamine B(RhB). And Bi-doped YFeO3 shows the best performance. Moreover, the YFeO3 solid solutions show different activities for the degradation of different dyes.Chinese Journal Of Inorganic Chemistry. 01/2009; 25(11):1922-1927.