Objective To find a simple, effective and inexpensive method for acid copper-containing waste water treatment. Methods Studied the processing of the leaching waste water from the laboratory of East China Institute of Technology and simulated acid copper mine waste water(concentration of Cu2+ is 143.00 mg/L, pH: 1.80-2.00) using the processed eggshells to treat acid copper-containing waste water under the condition of different calcining temperature, eggshells amount,eggshells size and stirring speed. Results The best condition was that the calcining temperature was 400 ℃, the amount of eggshells was 25 g/L, the size of eggshells was 0.25 mm, the stirring speed was 240 r/min. The eggshells could increase the pH values from 1.80-2.00 to 6.86-7.34 and reduce Cu2+ concentration from 0.43 mg/L to 0.09 mg/L, the concentration of Cu2+ in the treated waste water could answer for the first level of the Integrated Waste Water Discharge Standard(GB 8978-1996), the removal rates could reach 99.70%-99.94%. Conclusion Using eggshells to treat acid copper-containing waste water has application prospects for the process, is simple and easy to be operated, the treatment effect is good.

Objective To study the ultrasonographic manifestation character of age related macular degeneration (AMD). Methods The ultrasonographic manifestation of thirty five cases (38 eyes) of AMD diagnosed by fundus fluorescein angiography (FFA) with positive findings of ultrasonic B scan were analysed. Results The ultrasonic appearance of interlamellar transaudient cleft were found in 26 eyes, in which FFA appearance were serous detachment of pigment epithelium and subretinal neovascularization, 5 of them associated with small excavation of choroid, 4 of them associated with strong echo belt at the posterior edge of the interlamellar transaudient cleft in which the FFA appearance was extensive subretinal neovascularization.In another 4 eyes with choroidal hematoma under FFA revealed thin echo light spots in the interlamellar transaudient cleft. There was scar staining in the other 8 eyes in which the ultrasonic appearance showed an unequal thickening of the ocular wall in the posterior pole,unequal echo of interior edge and irregular inner echo. Conclusion The main ultrasonographic manifestation of AMD is the presence of interlamellar transaudient cleft in the thickened ocular wall.

Objective To investigate the characteristics of imaging appearances and diagnostic value of ciliochoroidal detachment.Methods Ultrasound,MRI and CT appearances of 19 cases of ciliochoroidal detachment were reviewed,which included 9 cases of serous ciliochoroidal detachment,7 cases of choroid hematoma,and 3 cases of ciliary body detachment.All cases were examined by both B ultrasound and MRI at the same time,11 of them were examined by CT.Results UItrasound showed membrane bulge of the eyeball wall with different extent in 9 cases of serous ciliochoroidal detachment.Its postzone connected the equator or close to optic disc and its prozone could not been detected by ultrasound.There was echofree fluid darkspace under detached membrane.MRI showed membrane detachment at both nasal side and temporal side of ocular annulation in 9 cases of ciliochoroidal detachment.The detached membrane was approximately symmetry,its anterior margin did not exceed ciliary body adhesion of ocular annnlation and its posterior margin stopped at posterior part of ocular annulafion.There was long T1 and long T2 signal under detached membrane.CT showed slight thickening of ocular annulafion and slightly increased density of eyeball in 5 cases of serous cilioehoroidal detachment.Ultrasound showed hemispheroid or curve bulge of eyeball wall,projected toward the vitreous cavity in 7 cases of choroid hematoma,and there was an amount of low echo light spot under the detached membrane.Both MRI (7 cases)and CT (5 cases) showed hemispheroid,fusfform or curve bulge on the nasal side,temporal side and posterior part of ocular annulation.They appeared as isodensity or slight high density on CT,iso- or high signal on T1 WI and T2WI.Stratification was seen on T2WI in I case of choroid hematoma.Ciliary body detachment could not been detected by either MBI (3 cases) or CT (1 case) except ultrasound.Conclusion Imaging examination may provide reliable diagnostic evidence for ciliochoroidal detachment.

Culturing sientific research ability and innovative ability of medical college students is important for the development of themselves and the medical colleges as well,which also meets the needs of the local economy and social development.This paper studies the undergraduate research projects in recent five years,to underst and tmedical students' research ability.Countermeasures are proposed to improve the situation.

Objective The rapid development of radiation equipment has put forward higher requirements for protective facil -ities.The aim of this study was to research the radiation protection status of treatment equipment room in thirty -three medical units from East China area , and to put forward corresponding countermeasures to improve the level of radiation protection . Methods The li-cense and archival of X-ray machine, CT, gamma knife, accelerator, after loading therapy machine were surveyed in the thirty-three medical units .The engine room size , wall thickness , lead equivalent of protection doors , and leakage level of equipment were detec-ted.All the data were evaluated and analyzed on the basis of the corresponding national standards . Results ①The inspection pass rates of radiation treatment equipments in the first class hospitals were afterloader (100%), X-ray apparatus(99%), gastrointestinal machine(98%), CT(98%), medical processing accelerator (98%), gamma knife(97%), DSA(94%), PET-CT(94%), ECT (90%), dental engine(84%)and molybdenum target drone (84%).The inspection pass rates of radiation treatment equipments in other class hospitals were medical processing accelerator (100%), X-ray apparatus(91%), CT(89%), gastrointestinal machine (80%), DSA(80%) and (80%) gamma knife.②The qualified rates of the leakage radiation levels of radiation therapy , diagnostic radiology and nuclear medicine were 100%, 99% and 97%. Conclusion The radiation protection of treatment equipments and facilities in thirty-three medical units from East China area needs to be strengthened . We should strengthen supervision , implement the rules and regulations , strictly perform the regulation of radiation protection evalua-tion, and strengthen the training of radiation protection regulations and skills .

Objective To know about the post-traumatic stress disorders (PTSD) of women with termination of pregnancy for fetal anomalies (TOPFA),and investigate the relationship of PTSD and the big five personality traits.Methods The general questionnaire,the Impact of Event Scale-Revised (IES-R) and the Big Five Questionnaire were administered to the women with TOPFA in hospital from February 2014 to February 2015.Results The total score of IES-R of 84 cases was 26.20 ± 16.38.The scores of 49 cases(58.3％) were more than 19 and that of 20 cases (23.8％) more than 35.Women who had the first pregnancy had higher level of arousal symptoms,12.84±7.41 vs.9.65±5.53 (t =2.25,P ＜ 0.05).Women whose scores were above 19 had lower adaptation,sociality,altruism and conscience compared with those scored ≤ 19,14.96±3.29,16.84±3.00,18.55±3.49,17.57±2.99 vs.13.57±2.82,18.31±2.65,20.03±2.32,18.86±2.21,t=2.02-2.33,P ＜ 0.05.The IES-R score had no linear correlation with that of the big five personalities,and intrusion subscale had linear correlation with the adaptation.Avoidance symptoms had low positive relationship with sociality in women whose IES-R were above 19,r =0.23,P ＜ 0.05.In populations whose IES-R scored above 19,avoidance subscale had positive weak correlation with sociality,r=0.31,P ＜0.05.Conclusions The women with TOPFA had high level of PTSD before termination.Women with sever posttraumatic stress symptoms had lower sociality and altruism.Moreover,of the women who had sever posttraumatic stress symptoms,one with higher sociality always had higher avoidance symptoms.

Objective To compare the influences of different dilution titers on the ANA detection by the indirect immunofluores‐cence assay(IIF) in children for investigating the necessity of reducing serum initial dilution titer .Methods Serum ANA was detec‐ted by using the indirect immunofluorescence assay at a serial of dilution titer in 110 healthy controls and the results were compared with the results of specific ANAs by the linear immunoassay (LIA);meanwhile the ANA‐LIA results in clinical children patients with ANA‐IIF negative were also analyzed .Results With the dilution titers gradual decrease from 1∶80 ,1∶40 and 1∶20 in the samples of the health group ,the positive detection rates of ANA‐IIF were risen ,which were 7 .3% ,9 .1% and 10 .9% respectively , but the differences were not statistically significant (P>0 .05) ,the weak‐positive rates were 7 .3% ,15 .5% and 31 .8% respective‐ly ,the differences were statistically significant (P<0 .01) .Among 110 healthy children under going the physical examination ,the specific ANA was detected out in 8 samples ,the positive rate was 7 .3% .Among 8 positive cases at the dilution titer of 1∶80 by the IIF method ,specific ANA was in 2 cases;in 4 added cases of fluorescence ANA positive samples at the dilution titers of 1∶40 and 1∶20 ,specific ANA was in 1 case .If with any positive of ANA‐IIF(1∶80) or ANA‐LIA as the ANA positive ,the ANA positive rate was risen from 7 .3% to 12 .7% .In the clinical samples among 29 cases of ANA‐IIF(1∶80) negative autoimmune liver disease related autoantibody detection ,the specific ANA‐LIA positive was detected in 5 cases (17 .2% ) .Conclusion Reducing the initial ti‐ter of children serum is unable to obviously increase the ANA‐IIF positive detection rate ,on the contrary increases the non‐specific weak positive .Therefore ,clinical laboratory does not change the dilution titer of children routine ANA sample .The detection by combining with the specific ANA‐LIA spectrum is conducive to find ANA .

OBJECTIVE To explore kinetic features and its underlying mechanism of the positive inotropic effect of liguzinediol(LZDO)in rats. METHODS ①An In vivo study was made to record the effect of LZDO 20 mg · kg-1 injected for 30 consecutive min from the left external jugular vein on pressure-volume relationships. ②Ex vivo study was used to record the antagonistic effect of LZDO on reduced contractility induced by caffeine. Caffeine and LZDO were perfused as follows:normal perfusion solution, caffeine 0.5 mmol · L-1,and then caffeine 0.5 mmol · L-1+LZDO 100 μmol · L-1. ③ Ca2+ transient from cardiomyocyte sarcoplasmic reticulum (SR) was measured to analyze the effect of LZDO on Ca2 +release blocked by thapsigargin. Thapsigargin and LZDO were perfused as follows:normal perfusion solution,thapsigargin 2 μmol · L-1,and then thapsigargin 2 μmol · L-1+LZDO 100 μmol · L-1.④The SR vesicles were prepared and the effect of LZDO(1,10 and 100μmol·L-1)on sarcoplasmic reticulum Ca2+ATPase(SERCA2a)activity was determined according to the ultramicro-Ca2+-ATP enzyme kit. RESULTS ① LZDO 20 mg · kg- 1 significantly reduced the end-systolic volume (Ves) and enhanced the end-systolic pressure (Pes),stroke volume (SV),ejection fraction (EF),cardiac output(CO),peak rate of rise of left ventricular pressure(+dp/dtmax)and stroke work(SW)(P<0.05). However,LZDO 20 mg · kg-1 did not significantly change the heart rate(HR )or the end-diastolic volume (Ved). ② Caffeine 0.5 mmol · L- 1 significantly enhanced HR,left ventricular developed pressure (LVDP ),and+dp∶dtmax at 5 min after caffeine and decreased at 30 min. However,LZDO 100μmol·L-1 restored the reduced HR,LVDP,and+dp/dtmax induced by caffeine at 30 min(P<0.05).③Thapsigargin 2μmol·L-1 significantly reduced the SR Ca2+transient from perfusion solution group(100±5)%to(51± 5)%(P<0.05) and LZDO 100 μmol · L-1 failed to restore the decreased Ca2+ transient〔(49 ± 4)%〕. Normalized Ca2+transients were reduced by thapsigargin 2μmol·L-1 and thapsigargin 2μmol·L-1+LZDO 100 μmol · L-1. ④ LZDO(10 and 100 μmol · L-1)significantly increased the activities of SERCA2a in perfusion solution group 0.98±0.10 to 1.17±0.20 and (1.43±0.09)μmol Pi·g-1·h-1,respectively(P<0.05). CONCLUSION LZDO can enhance SR Ca2+ gradient by activating the SERCA2a and might be developed to serve as a potential positive inotropic agent in clinical settings.

Objective: To observe the anti- arrhythmic effects of Lvfukang Capsules on the experimental arrhythmic models induced by aconitine in rats, and provid accordance for clinical medication. Methods: 50 rats were divided into model control group, positive control group, high, middle and low dosage groups of Lvfukang Capsules, respectively. All the dosage groups were treated with successive medication 3 days, arrhythmic models induced by aconitine for 30minutes after the last dosage. To observe and record the time of ventricular premature beat (VP) and ventricular fibrillation (VF). Results: All the dosage groups of Lvfukang Capsules significantly delayed the time of ventricular premature beat (VP) and ventricular tachycardia (VT) of arrhythmic models of rats (P

Background It is thought in recently that photodynamic therapy (PDT) is an effective treatment method for chronic central serous chorioretinopathy (CSC), but the dosage of verteporfin and its long-term efficacy and complications is rarely elucidated ever before.Objective This study was to observe the long-term efficacy and safety of 60％ dose verteporfin PDT for chronic CSC.Methods This is a retrospective study and a self-controlled design was used.The clinical data of 25 eyes of 21 chronic CSC patients who received 60％-dose verteporfin PDT in Henan Eye Institute from January 2009 to May 2010 were reviewed, with the male 18 (85.71％) and female 3 (14.29％) as well as monocular CSC 17 patients and binocular CSC 4 patients.The average ages of the patients were (43±5) years.Fundus fluorescein angiography (FFA) , indocyanine green angiography (ICGA), optical coherence tomography(OCT) and best corrected visual acuity (BCVA) were examined in all the patients before and after treatment.PDT with the 60％-dose verteporfin (3.6 mg/m2) was carried out on the CSC eyes.The treated eyes were examined 2 weeks, 1 month and 3 months after PDT.The BCVA,subfoveal choroid thickness,FFA and ICGA findings before and after PDT were compared.The following-up duration was 5 years or more.Results The BCVA before and 3 months after PDT were 0.5 ±0.1 and 0.9±0.2, respectively, with a statistically significant difference between them (t =19.17,P =0.00).The subfoveal choroidal thickness value 3 months after PDT was (326.56±39.47) μm,which was significantly reduced in comparison with (486.24 ±47.53) μm before PDT (t =25.17, P =0.00).FFA and ICGA showed that the leakage of fluorescein (hyperfluorescence) was disappeared in all the treated eyes.No systemic or local adverse effects and recurrence were observed during the follow-up period.Conclusions On the basis of the results of this study and available information,60％-dose verteporfin PDT seems to have a better long-term efficacy and safety than full-dose verteporfin in treating chronic CSC.