Effects of psychological intervention on glucose metabolism in patients with type 2 diabetes mel?itus accompanying depression in community

Objective: To explore the effect of psychological intervention on glucose metabolism in patients with type 2 diabetes mellitus (T2DM) accompanying depression in community. Methods: Four hundred and ten cases of T2DM patients in the Community Health Service Center of Friendship Office (Bao-tou) were chosen as the research objects. The evaluation and analysis were made according to Zung self-rating depression scale (SDS), and 176 cases of T2DM patients with depression were found out in the community. 176 cases of T2DM patients with depression were divided into the experimental group and the control group by use of random number table, with 88 cases in each group. The control group was treated with conventional therapy, while the experimental group was given psychological intervention treatment on the basis of conventional therapy. After 3-month psychological intervention, fasting blood glucose (FPG), two-hour postprandial blood glucose (PG2h), glycosylated hemoglobin (HbA1c) and Zung self-rating Depression Scale (SDS) were measured in two groups. In two months after psychological intervention stopped, the follow-up was conducted to determine the levels of FPG, PG2h and HbA1c, and to assess the level of depression and quality of life. Statistical analysis was performed by use of SPSS 17.0 statistical software. Results: After 3-month psychological intervention, the levels of FPG, PG2h and HbA1c in the experimental group were sig-nificantly lower than those in the control group, the depression index was significantly lower than that in the control group as well, the difference was statistically significant (p < .01). In two months after psychological intervention stopped, glucose metabolism indicators in the experimental group were significantly lower than those in the control group;the depression index was dramatically lower than that in the control group, the difference was of statistical significance (p < .01). Conclusions: Psychological intervention can effectively improve the depression symptoms and glucose metabolism indicators in T2DM patients with depression in community, but it needs a long-term persistence.

Kinetics model for leaching of ion-adsorption type rare earth ores

This paper aims to establish a mathematical model that can analyze the whole leaching kinetics process of ion-adsorption type rare earth ores.This leaching process is composed of three steps:(1)ammonium ions arrive at the ore particle surface through the diffusion layer;(2)ammonium ions exchange with rare earth ions;and(3)rare earth ions enter into the external solution through the diffusion layer.In the leaching process,it is hypothesized that the ore particle size remains constant The process of ammonium ions and rare earth ions passing through the diffusion layer was described by the Fick law,and the reversible ion exchange process between ammonium ions and rare earth ions was described by the Kerr model,A leaching kinetics model of rare earth ions by ammonium ions was constructed.Accuracy of this kinetics model was verified with laboratory tests.It is found that the correlation coefficients of all data are greater than 0.9000.The proposed kinetics model is therefore feasible for kinetics analysis throughout the leaching process.