Abstract To explore the effect of evidence-based nursing on the application of ultrasonic emulsification operation for cataract and the postoperative rehabilitation indicators. 110 cataract patients were included. All of them received ultrasonic emulsification operation for cataract and were divided into the control group(n=55) and the observation group(n=55) by random number method. The control group received routine nursing. The visual acuity, intraocular pressure, quality of life and adverse reactions of patients in both groups after discharge were compared and evaluated. The clinical effective rate(92.73%), postoperative visual acuity(0.68 ± 0.05) and SF-36 score(82.37 ± 4.13) in the observation group were higher than those in the control group(76.36%), (0.55 ± 0.02) and(74.06 ± 3.42), Conclusion: Evidence-based nursing can effectively improve the curative effect and postoperative vision, and improve the quality of life. The intraocular pressure in the observation group(9.95 ± 2.46) mmHg and the incidence of adverse reactions(29.09%) were lower than those in the control group(11.03 ± 3.11) mmHg and 10.91%(P<0.05). It is of distinct effect to carry out evidence-based nursing for the cataract patients receiving emulsification therapy. It effectively improves the effect of surgical treatment, reduce the occurrence of adverse reactions, so as to improve the quality of life and promote rapid physical recovery, maintaining clinical application value.

RESUMEN El yacimiento aurífero epitermal de Gaosongshan en Heilongjiang, al noreste de China, está incrustado en una formación de rocas volcánicas en el Cretácico Inferior. Tres vetas de cuarzo aurífero que incluyen once yacimientos de oro se descubrieron en zonas tectonoclásticas. Se realizaron análisis de mineralogía genética, entre estos de termoelectricidad, de tierras raras, y de trazas de piritas y tierras raras. El tipo de conductividad termoeléctrica de la pirita es principalmente tipo N-P. El cálculo de los parámetros XNP de termoelectricidad y el porcentaje de denudación γ de piritas en los yacimientos 1-I, 2-II y 2-IV sugiere que los yacimientos auríferos están erosionados en sus partes medias y bajas. El rango variable de las concentraciones de Co (51.3-264.0ppm) y de Ni (68.9-258.0ppm), y el índice Co: Ni (0.31-1.90), junto con un índice pequeño de Sr/Ba de piritas mineralizadas (0.11-0.50) suponen un origen hidrotérmico de mineralización en el yacimiento aurífero de Gaosongshan. Comparado con rocas volcánicas, los patrones de tierras raras en las condritas normalizadas de piritas y cuarzos son todos tierras raras ligeros enriquecidos con índices ΣLREE/ΣHREE similares y que se ubican en el rango 7.37-13.68 en las piritas mineralizadas, 4.74-15.37 en los cuarzos mineralizados y sin anomalías de Cerio. Los valores δEu en piritas mineralizadas y cuarzos son de 0.65-1.66 (con promedio de 0.93) y 0.66-1.62 (con promedio de 1.03), respectivamente. Los valores δEu de las rocas volcánicas son 0.861.07 (con promedio de 0.94), lo que sugiere que no hay anomalías negativas de europio. Las características similares de tierras raras entre piritas mineralizadas, cuarzos y rocas volcánicas, al igual que estudios previos de isotopos de oxígeno e hidrógeno en cuarzos, sugieren que los fluidos hidrotermales del yacimiento de Gaosongshan son principalmente de origen magmático, el cual está asociado con el magma andesítico, y está parcialmente mezclado con agua atmosférica. Al comparar las características de los elementos traza en las piritas mineralizadas con las rocas volcánicas, y basados en estudios isotópicos del azufre, se puede concluir que los materiales hidrotermales se derivan de las rocas circundantes. Pequeños cambios de las piritas mineralizadas en Y/Ho (23.8027.28), Zr/Hf (35.4147.83), Nb/Ta (10.96-1852) indican que el sistema hidrotermal del depósito es relativamente estabe durante los procesos hidrotérmicos.

ABSTRACT The Gaosongshan epithermal gold deposit in Heilongjiang, Northeast China, is hosted by the Lower Cretaceous intermediate-basic volcanic rocks. Three auriferous quartz veins including eleven gold orebodies were all discovered in tectonoclastic zones. Genetic mineralogy study including the thermoelectricity, rare earth elements and trace elements of pyrite and rare earth elements of quartz were carried out. Thermoelectric conductive type of pyrite is mainly N-P type. Calculating the thermoelectric parameters XNP and denudation percentage γ of pyrites from orebodies 1-I, 2-II and 2-IV, suggests that gold orebodies are all eroded to their middle-lower parts. The variable range of Co concentrations (51.3-264.0ppm) and Ni concentrations (68.9-258.0ppm) and Co: Ni ratio (0.31-1.90), together with relatively small Sr/Ba ratio in ore-bearing pyrites (0.11-0.50), supports a hydrothermal origin of mineralization at Gaosongshan gold deposit. Compared with volcanic rocks, the chondrite-normalized REE patterns of ore-bearing pyrites and quartz are all LREE enriched with similar ΣLREE/ΣHREE ratio ranging from 7.37-13.68 in ore-bearing pyrites, 4.74-15.37 in ore-bearing quartz and no Ce anomalies. δEu values in ore-bearing pyrites and quartz are 0.65-1.66 (average=0.93) and 0.66-1.62 (average=1.03), respectively. δEu values of volcanic rocks are 0.86-1.07 (average 0.94), suggesting no obvious negative Eu anomalies. Similar REE characteristics of ore-bearing pyrites and quartz and volcanic rocks, together with previous oxygen and hydrogen isotope studies of quartz, suggest that the ore-forming fluids of the Gaosongshan gold deposit were mainly magmatic origin which was associated with andesitic magma and was partly mixed with atmospheric water. Comparing trace elements characteristics of ore-bearing pyrites with volcanic rocks, together with previous S isotopic studies, it is concluded that the ore-forming materials were derived from the surrounding rocks. Slight changes of Y/Ho (23.80-27.28), Zr/Hf (35.41-47.83), Nb/Ta (10.96-18.52) in ore-bearing pyrites indicate that the ore-forming fluid system is relatively stable during the ore-forming process.

Objective: To explore the effect of cognitive behavioral therapy (CBT) in combination with systemic family therapy (SFT) on mild to moderate postpartum depression and sleep quality. Methods: 249 primiparous women with mild to moderate postpartum depression were recruited and randomly assigned to a control group (n=128), which received conventional postpartum care, or to a psychological intervention group (n=121), which received conventional postpartum care combined with psychological intervention. The Edinburgh Postnatal Depression Scale (EPDS) and Pittsburgh Sleep Quality Index (PSQI) were employed to evaluate depression and sleep quality, respectively. Results: 104 patients in the intervention group and 109 in the control group completed the study. After intervention, the EPDS score, PSQI score, sleep quality score, sleep latency score, sleep duration score, habitual sleep efficiency score, sleep disturbance score, and daytime dysfunction score were significantly lower in the intervention group than in the control group. The EPDS and PSQI scores of each group at different time points after intervention were markedly decreased compared with those before intervention, and the reduction in the intervention group was more evident than that in the control group. Conclusion: CBT in combination with SFT can improve depression and sleep quality in patients with mild to moderate postpartum depression.