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 Biogass emission prognosis at the landfills
作者  Bicheldey, T.K. & Latushkina, E.
作者单位  
期刊  International Journal of Environment Science and Technology 卷期  Vol. 7, No. 4, 2010 时间  2011.01.17
关键词  Air pollution; Atmosphere; Carbon dioxide; Methane; Solid waste
摘要   The present study aims to estimate biogas potential of two Russian landfills situated in the republic of Tatarstan and in Moscow Region. Due to environmental, economic, social and energetic consideration of biogas for human being, utilization of such a by-product would be of high concern. To date, there are seven biogas utilization projects which have been developed and implemented at municipal solid waste landfills of Russia. The purpose of the research was to determine the biogas potential at the closed landfills. During the studies held in 2008; sampling, transportation, storage of biogas and landfill soil samples, laboratory investigations; physicochemical and analytical methods for measuring of proteins, carbohydrates and fats in the organic part of the soil and the analysis of empirical data by the methods of computer modeling and mathematical statistics were carried out. The obtained results of the research; concentrations of biogas components: methane, carbon dioxide, carbon oxide, nitrogen, hydrogen and oxygen, gas flows, composition of the organic part of the fields and analysis of gas distribution on the surface of the landfills; has shown scientific and practical importance. Results could be used for the assessment of biogas potential at the landfills for further biogas utilization projects implementation with electrical or thermal energy production.
 Our ideas for introduction of single-port surgery
作者  Kojima, Yutaka;Tomiki, Yuichi & Sakamoto, Kazuhiro
作者单位  
期刊  Journal of Minimal Access Surgery 卷期  Vol. 7, No. 1, 2011 时间  2010.12.28
关键词  Single-incision access surgery, single port surgery
摘要   Single-port surgery, which is also called single-incision laparoscopic surgery (SILS), laparoscopic single-site surgery, or single-port access surgery, has been performed in several countries. However, it has not been widely adopted throughout the world because there still remain some challenging problems to be solved, in terms of safety and technology, and the majority of devices specific to SILS are under development and have not been approved by the Japanese Pharmaceutical Affairs Law. Herein, we introduce single-incision access using existing surgical devices that will give us the opportunity to adopt SILS to our hospital.
 A preliminary evaluation of the psychometric profiles in Chinese men with chronic prostatitis/chroni
作者  ZHANG Guo-xi, BAI Wen-jun, XU Tao, WANG Xiao-feng
作者单位  
期刊  Chinese Medical Journal 卷期  2011;124(4 时间  2010.11.23
关键词  chronic prostatitis/chronic pelvic pain syndrome·hospital anxiety and depression scale·psychological disorders
摘要   Background As one of the most commonly diagnosed diseases, chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is characterized by a variety of complex symptoms. Anxiety and depression are two of the most prevalent clinical manifestations of patients with CP/CPPS, and have adverse effects on the health of the subjects and prognosis of comorbidities. Such psychological disorders, however, have not been deeply and thoroughly studied in China. The aim of this study was to investigate the prevalence and severity of psychological disorders in Chinese adults with CP/CPPS. Methods From April 2008 to June 2009, 80 patients and 40 age-matched healthy men participating in a voluntary health examination were recruited. The majority of the subjects completed the questionnaires on the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) as well as the hospital anxiety and depression scale (HADS). Results Of all the participants, 77 (96.3%) patients and 37 (92.5%) healthy controls completed the questionnaires. The average NIH-CPSI total score was 21.0±9.5 for the patients and 2.2±1.5 for the controls (P=0.03). Of the 77 patients with CP/CPPS, 48 (62.3%), 5 (6.5%), and 1 (1.2%) had anxiety symptoms, depression symptoms, or both anxiety and depression symptoms, respectively. For the controls, the average HADS anxiety and depression scores in patients were 14.5±6.8 and 5.2±4.5, which were both significantly higher than in controls. Moreover, the prevalence and the symptom scores of both the HADS anxiety and depression were higher for the younger age group (<35 years) than for the older age group (<35 years). Conclusions This preliminary study revealed that male patients with CP/CPPS had a higher prevalence of psychological disorders than in the control subjects. Moreover, the differences of the prevalence and severity of the psychological symptoms between the two different age groups may imply that psychological disorders related to CP/CPPS may be relieved with increasing age. The present study indicated that psychological evaluation is important in men with CP/CPPS, especially in younger men.
 WU XINMOU(OU SING-MO): IN COMMEMORATION OF THE 100thANNIVERSARY OF HIS BIRTH
作者  李文林|陆柱家 LI Wen-Lin, LIU Zhu-Jia
作者单位  
期刊  数学物理学报 卷期  1981 5 (2) 时间  2010.11.20
关键词  
摘要   Wu Xinmou (Ou Sing-mo) was born in Jiangyin, a peaceful Chinese town in Jiangsu Province by the Yangtze River, on April 14 of 1910, his father was a teacher of history at a local school. Wu Xinmou received his school education in home town and entered the department of mathematics of National Central University in Nanjing where he was taught higher algebra, geometry and analysis by Professor He Lu, a French returned scholar. Having graduated from the Central University in 1932, Wu Xinmou taught at the department of mathematics as an assistant professor in Tsinghua University from 1934 to 1937, and became interested in differential equations under the influence of Professor Xiong Qinglai (Hiong King-lai), who owned French Doctorat d'Etat and chaired the department from 1928 to 1937. Wu was sent to France at state expense in 1937, where he took at first H. Villat's class in viscous fluid mechanics and changed eventually his major to partial differential equations supervised by J. Hadamard. During his stay in France, as well as intensive academic researches, Wu Xinmou took part in the patriotic activities against Japanese invasion led by Chinese Communist Party, in particular he was editor of the journal Anti-Japanese News from Homeland since 1939. Wu joined Chinese Communist Party as a member of the branch sojourned in France led by Deng Fa and Liu Ning-Yi in 1945.
 Long-term effect of prophylactic laser treatment for bilateral soft drusen
作者  HUANG Ying-xiang, XIANG Li-nan, WANG Yan-ling, LI Ming-min , HU Yong-xia
作者单位  
期刊  Chinese Medical Journal 卷期  2011;124(4 时间  2010.08.09
关键词  drusen·prophylactic laser treatment·macular thickness
摘要   Background Large drusen is a known risk factor for the development of late complications of age-related macular degeneration (AMD) and drusen reduction has been found by our previous study. To prospectively evaluate the efficacy and safety of prophylactic laser treatment in Chinese patients with bilateral soft drusen, we examined the structure and function of the macula 8 years after treatment. Methods Ten patients with more than 10 soft drusen (>125 mm) and best corrected visual acuity ≥20/25 in each eye participated in the study. One eye, with relatively more drusen, was exposed to an argon laser (514 nm) to achieve a barely visible retinal lesion. The contralateral eye was used as a control. Fluorescein angiography, Amsler tests, Fourier-domain optical coherence tomography and visual evoked potential tests were carried out 8 years later. Results No choroidal neovascularization was seen in the laser-treated eyes or control eyes. There were no significant differences in visual acuity or P100 latency and amplitude between the laser treated eyes and contralateral eyes (t=1.685, 1.184;P>0.05). The thickness of the retinal pigment epithelium of the treated eyes was less than that of the contralateral eyes (t=–4.540;P<0.05). The full retinal thickness in treated eyes was slightly, but insignificantly, reduced relative to contralateral eyes (t=–1.746;P>0.05). Conclusions The treatment was associated with a reduction in retinal pigment epithelium thickness elevation compared with the contralateral eyes. Macular function was not impaired. (ChiCTR-TNRC-00000221)
 Treating Gynaecological Disorders With Traditional Chinese Medicine: A Review
作者  Zhou, Jue & Qu, Fan
作者单位  
期刊  African Journal of Traditional Complementary and Alternative Medicines 卷期  Vol. 6, No. 4, 2009 时间  2010.07.27
关键词  Traditional Chinese Medicine (TCM); Chinese Herbal Medicine (CHM); acupuncture; gynaecological disorders; review.
摘要   Traditional Chinese Medicine (TCM) has significant advantages in treating gynaecological disorders. The paper has provided a brief introduction on the current progress of treating some gynaecological disorders including endometriosis, infertility, dysmenorrhea, abnormal uterine bleeding, premenstrual syndrome, menopausal syndrome, uterine fibroids, chronic pelvic inflammation, polycystic ovarian syndrome (PCOS), cervicitis and vaginitis with Chinese Herbal Medicine (CHM) and acupuncture. The use of TCM in the field of assisted reproductive techniques (ART) has also been included in the review. In addition, thirty-two commonly used Chinese medicinal formulas in treating gynaecological disorders have been introduced.
 Effects of heme oxygenase-1 gene modulated mesenchymal stem cells on vasculogenesis in ischemic swin
作者  JIANG Yi-bo, ZHANG Xiao-li, TANG Yao-liang, MA Gen-shan, SHEN Cheng-xing, WEI Qin, ZHU Qi, YA
作者单位  
期刊  Chinese Medical Journal 卷期  2011;124(3 时间  2010.06.10
关键词  heme oxygenase-1 gene·mesenchymal stem cells·myocardial ischemia/reperfusion·vasculogenesis
摘要   Background Mesenchymal stem cells (MSCs) transplantation may partially restore heart function in the treatment of acute myocardial infarction (AMI). The aim of this study was to explore the beneficial effects of MSCs modified with heme xygenase-1 (HO-1) on post-infarct swine hearts to determine whether the induction of therapeutic angiogenesis is modified by the angiogenic cytokines released from the implanted cells. Methods In vitro, MSCs were divided into four groups: (1) non-transfected MSCs (MSCs group), (2) MSCs transfected with the pcDNA3.1-Lacz plasmid (Lacz-MSCs group), (3) MSCs transfected with pcDNA3.1-hHO-1 (HO-1-MSCs group), and (4) MSCs transfected with pcDNA3.1-hHO-1 and pretreatment with an HO inhibitor, tin protoporphyrin (SnPP) (HO-1-MSCs+SnPP group). Cells were cultured in an airtight incubation bottle for 24 hours, in which the oxygen concentration was maintained at <1%, followed by 12 hours of reoxygenation. After hypoxia/reoxygen treatment, ELISA was used to measure transforming growth factor (TGF-β) and fibroblast growth factor (FGF-2) in the supernatant.In vivo, 28 Chinese mini-pigs were randomly allocated to the following treatment groups: (1) control group (saline), (2) Lacz-MSCs group, (3) HO-1-MSCs group, and (4) HO-1-MSCs + SnPP group. About 1×107of autologous stem cells or an identical volume of saline was injected intracoronary into porcine hearts 1 hour after MI. Magnetic resonance imaging (MRI) assay and postmortem analysis were assessed four weeks after stem cell transplantation. Results Post hypoxia/reoxygenationin vitro, TGF-β in the supernatant was significantly increased in the HO-1-MSCs ((874.88±68.23) pg/ml) compared with Lacz-MSCs ((687.81±57.64) pg/ml,P<0.001). FGF-2 was also significantly increased in the HO-1-MSCs ((1106.48±107.06) pg/ml) compared with the Lacz-MSCs ((853.85±74.44) pg/ml,P<0.001).In vivo, at four weeks after transplantation, HO-1 gene transfer increased the capillary density in the peri-infarct area compared with the Lacz-MSCs group (14.24±1.66/HPFs vs. 11.51±1.34/HPFs,P<0.001). Arteriolar density was also significantly higher in HO-1-MSCs group than in the Lacz-MSCs group (7.86±2.00/HPFs vs. 6.45±1.74/HPFs,P=0.001). At the same time, the cardiac function was significantly improved in the HO-1-MSCs group compared with the Lacz-MSCs group ((53.17±3.55)% vs. (48.82±2.98)%,P<0.05). However, all these effects were significantly abrogated by SnPP. Conclusion MSCs provided a beneficial effect on cardiac function after ischemia/reperfusion by the induction of therapeutic angiogenesis, and this effect was amplified by HO-1 overexpression.
 Chlamydia trachomatis serovars of endemic trachoma had been predominantly existed in Japan?
作者  Kei Numazaki
作者单位  
期刊  Journal of Applied Sciences and Environmental Management 卷期  Vol. 8, No. 2, 2004 时间  2010.06.01
关键词  
摘要   In contrast to urogenital chlamydial infection, trachoma is a household disease that has disappeared in Japan as many parts of world because of improved living conditions and hygiene. However, chlamydial inclusion conjunctivitis is still not a rare disease in the outpatient clinics of general Japanese ophthalmologists. The serovars that we identified from Japanese infants and pregnant women were similar to those reported in other studies from non-trachoma-endemic areas and were thought to be mainly urogenital tract-origin. Once Japan was thought to be belong to an endemic area of trachoma as other Asian countries.Chlamydiatrachomatisserovars of trachoma-endemic area had been really existed and predominantly associated with trachoma in Japan?@JASEM
 Intravitreal bevacizumab combined with/without triamcinolone acetonide in single injection for treat
作者  WANG Yu-sheng, LI Xiao, WANG Hai-yan, ZHANG Zi-feng, LI Man-hong, SU Xiao-na
作者单位  
期刊  Chinese Medical Journal 卷期  2011;124(3 时间  2010.05.06
关键词  bevacizumab·triamcinolone acetonide·diabetic macular edema
摘要   Background Diabetic macular edema (DME) is a common manifestation of diabetic retinopathy (DR) that forms the main cause of central visual impairment. This study aimed to compare the efficacy and safety of a single intravitreal injection of bevacizumab alone versus bevacizumab combined with triamcinolone acetonide in eyes with diabetic macular edema (DME). Methods A total of 40 eyes in 40 Chinese patients (22 male and 18 female) diagnosed with diabetic macular edema were enrolled in this prospective, randomized, consecutive study. Among them, 21 patients in group 1 were treated with intravitreal injection of bevacizumab (1.25 mg/0.05 ml), and the other 19 patients in group 2 accepted intravitreal bavacizumab (1.25 mg/0.05 ml) combined with triamcinolone acetonide (2 mg/0.05 ml). All patients were examined at baseline and followed up at 4, 6 and 12 weeks after the injection. Changes in mean best correct visual acuity (BCVA) using ETDRS chart, central retina thickness (CRT) measured by optical coherence tomography (OCT), and intraocular pressure (IOP) were focused on. Results In group 1, mean BCVA improved from (41.76±15.59) letters (baseline) to (56.24±18.56) letters, (52.57±12.31) letters and (48.41±17.90) letters at 4, 6 and 12 weeks post-injection, respectively (P=0.004,P=0.011 andP=0.026, respectively). Mean CRT decreased from (525.76±184.10) μm (baseline) to (270.33±202.67) µm, (303.12±168.43) µm and (402.26±196.21) μm, respectively (P=0.009,P=0.016 andP=0.030, respectively). In group 2, mean BCVA improved from (39.89±12.27) letters (baseline) to (55.31±19.27) letters, (51.25±13.48) letters and (46.97±16.23) letters at 4, 6 and 12 weeks after injection, respectively (P=0.003,P=0.010 andP=0.027, respectively). Mean CRT decreased from (554.50±169.05) μm (baseline) to (292.76±196.05) µm, (323.46±164.05) µm and (426.38±169.05) μm, respectively (P=0.009,P=0.014 andP=0.028, respectively). However, there was no significant difference between these two groups with regard to mean BCVA (F=1.602,P=0.216) and CRT (F=0.412,P=0.526). At 12 weeks after the injection, 11 of the patients in group 1 and nine patients in group 2 appeared recurrent macular edema and needed repeat injections. There was one patient in group 2 appeared transient intraocular pressure increases. Conclusions Intravitreal injection of bevacizumab combined with/without triamcinolone acetonide had a beneficial effect on DME. However, the significant effect was not permanent. Our results showed that no significant differences were detected between intravitreal bevacizumab combined with/without triamcinolone acetonide for the eyes with diabetic macular edema in Chinese patients.
 Large-area burns with pandrug-resistant Pseudomonas aeruginosa infection and respiratory failure
作者  NING Fang-gang, ZHAO Xiao-zhuo, BIAN Jing, ZHANG Guo-an
作者单位  
期刊  Chinese Medical Journal 卷期  2011;124(3 时间  2010.05.06
关键词  burns·pandrug-resistant Pseudomonas aeruginosa·respiratory failure
摘要   Background Infection due to pandrug-resistantPseudomonas aeruginosa(PDRPA) has become a challenge in clinical practice. The aim of this research was to summarize the treatment of large-area burns (60%–80%) with PDRPA infection and respiratory failure in our hospital over the last two years, and to explore a feasible treatment protocol for such patients. Methods We retrospectively analyzed the treatment of five patients with large-area burns accompanied by PDRPA infection and respiratory failure transferred to our hospital from burn units in hospitals in other Chinese cities from January 2008 to February 2010. Before PDRPA infection occurred, all five patients had open wounds with large areas of granulation because of the failure of surgery and dissolving of scar tissue; they had also undergone long-term administration of carbapenems. This therapy included ventilatory support, rigorous repair of wounds, and combined antibiotic therapy targeted at drug-resistance mechanisms, including carbapenems, ciprofloxacin, macrolide antibiotics and β-lactamase inhibitors. Results Four patients recovered from burns and one died after therapy. Conclusions First, compromised immunity caused by delayed healing of burn wounds in patients with large-area burns and long-term administration of carbapenems may be the important factors in the initiation and progression of PDRPA infection. Second, if targeted at drug-resistance mechanisms, combined antibiotic therapy using carbapenems, ciprofloxacin, macrolide antibiotics and β-lactamase inhibitors could effectively control PDRPA infection. Third, although patients with large-area burns suffered respiratory failure and had high risks from anesthesia and surgery, only aggressive skin grafting with ventilatory support could control the infection and save lives. Patients may not be able to tolerate a long surgical procedure, so the duration of surgery should be minimized, and the frequency of surgery increased.
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