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| 1 | Hepatic venous outflow reconstruction in adult right lobe living donor liver transplantation without middle hepatic vein显示文摘背景重建困难、挑战性在没有中间的肝的静脉(MHV ) 的成年正确脑叶生活施主肝移植(LDLT ) 的肝的静脉的流出。门静脉和静脉的流出阻塞的过多的灌注将导致接枝的尖锐拥挤,最终导致主要 nonfunction。尽管各种各样的重建模式在许多国家被探索了,当前没有清楚的一致。在这研究,我们描述一种技术没有 MHV.Methods A ,用正确脑叶接枝在 LDLT 与劣等的静脉 cava ( IVC )在流出吻合阻止接枝的“ chocking ”回顾的分析从没有 MHV ,用正确脑叶接枝经历 LDLT 的 55 个接受者在临床的数据上被进行或肝的静脉的流出的重建。施主的恰好肝的静脉(RHV ) 与接受者 IVC 的三角形的开始被吻合;劣等的恰好肝的静脉(IRHV ) 足够大,直接被吻合到 IVC。大 saphenous 静脉(GSV ) 被用于重要 MHV tributaries.Results 的重建没有死亡发生在任何施主。55 个接受者,复杂并发症发生在 6,包括 hepaticvein 苛评(1 个盒子) , small-for-size 症候群(1 ) ,肝的动脉血栓(1 ) ,肠的流血(1 ) ,胆汁漏(1 )(1 ) ,左 subphrenic 脓肿和肺的感染。三个病人的一个总数死了,从 small-for-size 症候群的并且二从多重系统机关 failure.Conclusions,多重洞的垂直吻合与肝的静脉流出被重建。这种技术减轻生活施主的外科的风险,保证优秀静脉的排水,并且阻止脉管的 thromboses 和主要 nonfunction。 | WU Hong YANG Jia-yin YAN Lü-nan LI Bo ZENG Yong WEN Tian-fu ZHAO Ji-chun WANG Wen-tao XU Ming-qing LU Qiang CHEN Zhe-yu MA Yu-kui LI Jin | 2007 | Chinese Medical Journal2007,,11: | 27 |
| 2 | BMI, WC, WHtR, VFI and BFI: Which Indictor is the Most Efficient Screening Index on Type 2 Diabetes in Chinese Community Population显示文摘Objective Obesity is a major risk factor for type 2 diabetes, many indexes can be used to describes obesity and predict diabetes. This research attempts to identify the best indicator of obesity to screening diabetes in Chinese population. Methods A cross-sectional data of 8121 subjects aged 35-60 years were included in this research belongs to the Diabetes Appropriate Technology Intervention Study. Anthropometric indicators including body weight, height, waist circumferences (WC), body fat index (BFI) and visceral fat index (VFI) and blood biochemical indicators after an overnight fast [fasting blood glucose, total cholesterol, high-density lipoprotein (HDL) cholesterol, and triacylglycerol] were measured. BMI (body mass index) and Weight to Height Ratio was calculated. Results Subjects with obesity had a higher risk of physician diagnosed diabetes (OR=2.50, 95% CI 1.83-3.43), new diagnosed diabetes (OR=4.23, 95% CI 2.91-6.15) and pre-diabetes (OR=1.75, 95% CI 1.31-2.34) compared to those with normal Body mass index (BMI). There was a significant trend of increased risk of all diabetes status with increased waist circumference (WC). The waist-to-height ratio (WHtR) yielded the most significant association with new diagnosed diabetes and physician diagnosed diabetes than other indices. Conclusion Central obesity is significantly correlated with diabetes. VFI was most correlated with pre-diabetes while WHtR is an efficient screening index than BMI and WC in Chinese community diabetes screening. | MI Sheng Quan YIN Peng HU Nan LI Jian Hong CHEN Xiao Rong CHEN Bo YAN Liu Xia ZHAO Wen Hua | 2013 | Biomedical and Environmental Sciences2013,26,6: | 20 |
| 3 | Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes. | MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 无 | 2020 | Biomedical and Environmental Sciences2020,33,12: | 8 |
| 4 | Evaluation of the effects of combined endoscopic variceal ligation and splenectomy with pericardial devascularization on esophageal varices显示文摘AIM: To detect the hemodynamic alterations in collateral circulation before and after combined endoscopic variceal ligation (EVL) and splenectomy with pericardial devascularization by ultrasonography, and to evaluate their effect using hemodynamic parameters. METHODS: Forty-three patients with esophageal varices received combined EVL and splenectomy with pericardial devascularization for variceal eradication. The esophageal vein structures and azygos blood flow (AZBF) were detected by endoscopic ultrasonography and color Doppler ultrasound. The recurrence and rebleeding of esophageal varices were followed up. RESULTS: Patients with moderate or severe varices in the esophageal wall and those with severe peri- esophageal collateral vein varices had improvements after treatment, while the percentage of patients with severe para-esophageal collateral vein varices decreased from 54.49% to 2.33%, and the percentage of patients with detectable perforating veins decreased from 79.07% to 4.65% (P < 0.01). Color Doppler flowmetry showed a significant decrease both in AZBF (43.00%, P < 0.05) and in diameter of the azygos vein (28.85%, P < 0.05), while the blood flow rate was unchanged. The recurrence rate of esophageal varices was 2.5% (1/40, mild), while no re-bleeding cases were recorded. CONCLUSION: EVL in combination with splenectomy with pericardial devascularization can block the collateral veins both inside and outside of the esophageal wall, and is more advantagious over splenectomy in combination with pericardial devascularization or EVL in preventing recurrence and re-bleeding of varices. | Bo Liu Mei-Hai Deng Nan Lin Wei-Dong Pan Yun-Biao Ling Rui-Yun Xu | 2006 | World Journal of Gastroenterology2006,12,42: | 7 |
| 5 | An individualized immune signature of pretreatment biopsies predicts pathological complete response to neoadjuvant chemoradiotherapy and outcomes in patients with esophageal squamous cell carcinoma显示文摘No clinically available biomarkers can predict pathological complete response(pCR)for esophageal squamous cell carcinomas(ESCCs)with neoadjuvant chemoradiotherapy(nCRT).Considering that antitumor immunity status is an important determinant for nCRT,we performed an integrative analysis of immune-related gene profiles from pretreatment biopsies and constructed the first individualized immune signature for pCR and outcome prediction of ESCCs through a multicenter analysis.During the discovery phase,14 differentially expressed immune-related genes(DEIGs)with greater than a twofold change between pCRs and less than pCRs( | Chaoqi Zhang Guochao Zhang Nan Sun Zhen Zhang Liyan Xue Zhihui Zhang Haijun Yang Yuejun Luo Xiaoli Zheng Yonglei Zhang Yufen Yuan Ruixue Lei Zhaoyang Yang Bo Zheng Le Wang Yun Che Feng Wang Sihui Wang Shugeng Gao Qi Xue Yi Zhang Jie He | 2020 | Signal Transduction and Targeted Therapy2020,5,1: | 7 |
| 6 | The Association of Socioeconomic Status with the Burden of Cataract-related Blindness and the Effect of Ultraviolet Radiation Exposure: An Ecological Study显示文摘Objective To assess the association of socioeconomic status with the burden of cataract blindness in terms of year lived with disability(YLD) rates and to determine whether ultraviolet radiation(UVR) levels modify the effect of socioeconomic status on this health burden.Methods National and subnational age-standardized YLD rates associated with cataract-related blindness were derived from the Global Burden of Disease(GBD) study 2017. The human development index(HDI) from the Human Development Report was used as a measure of socioeconomic status.Estimated ground-level UVR exposure was obtained from the Ozone Monitoring Instrument(OMI)dataset of the National Aeronautics and Space Administration(NASA).Results Across 185 countries, socioeconomic status was inversely associated with the burden of cataract blindness. Countries with a very high HDI had an 84% lower age-standardized YLD rate [95%confidence interval(CI): 60%–93%, P < 0.001] than countries with a low HDI;for high-HDI countries, the proportion was 76%(95% CI: 53%–88%, P < 0.001), and for medium-HDI countries, the proportion was48%(95% CI: 15%–68%, P = 0.010;P for trend < 0.001). The interaction analysis showed that UVR exposure played an interactive role in the association between socioeconomic status and cataract blindness burden(P value for interaction = 0.047).Conclusion Long-term high-UVR exposure amplifies the association of poor socioeconomic status with the burden of cataract-related blindness. The findings emphasize the need for strengthening UVR exposure protection interventions in developing countries with high-UVR exposure. | DENG Yan YANG Dan YU Jia Ming XU Jing Xian HUA Hui CHEN Ren Tong WANG Nan OU Feng Rong LIU Ru Xi WU Bo LIU Yang | 2021 | Biomedical and Environmental Sciences2021,34,2: | 6 |
| 7 | Protective Effect of Angiotensin(1-7) on Silicotic Fibrosis in Rats显示文摘Objective Silicosis, caused by inhalation of silica dust, is the most serious occupational disease in China and the aim of present study was to explore the protective effect of Ang (1-7) on silicotic fibrosis and myofibroblast differentiation induced by Ang Ⅱ. Methods HOPE-MED 8050 exposure control apparatus was used to establish the rat silicosis model. Pathological changes and collagen deposition of the lung tissue were examined by H.E. and VG staining, respectively. The localizations of ACE2 and a-smooth muscle actin (a-SMA) in the lung were detected by immunohistochemistry. Expression levels of collagen type Ⅰ, a-SMA, ACE2, and Mas in the lung tissue and fibroblasts were examined by western blot. Levels of ACE2, Ang (1-7), and Ang Ⅱ in serum were determined by ELISA. Co-localization of ACE2 and a-SMA in fibroblasts was detected by immunofluorescenee. Results Ang (1-7) induced pathological changes and enhanced collagen deposition in vivo. Ang (1-7) decreased the expressions of collagen type Ⅰ and a-SMA and increased the expressions of ACE2 and Mas in the silicotic rat lung tissue and fibroblasts stimulated by Ang Ⅱ. Ang (1-7) in creased the levels of ACE2 and Ang (1-7) and decreased the level of Ang Ⅱ in silicotic rat serum. A779 enhanced the protective effect of Ang (1-7) in fibroblasts stimulated by Ang Ⅱ. Conclusion Ang (1-7) exerted protective effect on silicotic fibrosis and myofibroblast differentiation induced by Ang Ⅱ by regulating ACE2-Ang (l-7)-Mas axis. | ZHANG Bo Nan XU Hong GAO Xue Min ZHANG Gui Zhen ZHANG Xin YANG Fang | 2019 | Biomedical and Environmental Sciences2019,32,6: | 5 |
| 8 | Transdiaphragnatic exposure for direct atrioatrial anastomosis in liver transplantation显示文摘在 Budd-Chiari 症候群的背景肝移植仍然保持争论;然而,一些改进技术导致更好的结果。我们为 Budd-Chiari 症候群与 atrioatrial 吻合报导肝移植的中期的后续结果并且与结束阶段肝 disease.Methods 为病人与 atrioatrial 吻合探索肝移植的指示九个病人(六 Budd-Chiari 症候群,一结束阶段 hepatolithiasis ,一 hepatocellular 癌和一医不好的牙槽的包虫病)从 199 在四川大学的韦斯特中国医院里与 atrioatrial 吻合经历了肝移植八个肝移植使用的 cadaveric orthotopic 肝和一个一生活施主肝。起作用的技术都是为直接 atrioatrial 吻合和由在 venovenous bypass.Results 的帮助下的 cryopreserved 静脉 cava 接枝的劣等的静脉 cava 的代替的 transdiaphragmatic 暴露肝移植是成功的。二个病人收缩了肺的感染和尖锐拒绝发生在另一种情况中。与合适的治疗,所有病人恢复了很好并且有生活的好质量。迄今为止,他们被跟随了在上面为超过 24 个月。唯一的死亡跟随了在为直接 atrioatrial 吻合和劣等的静脉 cava 的 cryopreserved 静脉 cava graftreplacement 的肝 transplantation.Conclusions Transdiaphragmatic 暴露以后的三年是的肝的癌的复发为有因此扩大肝移植的指示的结束阶段肝疾病的病人可能。 | XU Ming-qing CHEN Zhe-yu YAN Lü-nan ZENG Yong WEN Tian-fu LI Bo ZHAO Ji-chun WANG Wen-tao YANG Jia-yin | 2010 | Chinese Medical Journal2010,,24: | 5 |
| 9 | 800 Gbit/s transmission over 1 km single-mode fiber using a four-channel silicon photonic transmitter显示文摘We demonstrate the optical transmission of an 800 Gbit/s(4×200 Gbit/s)pulse amplitude modulation-4(PAM-4)signal and a 480 Gbit/s(4×120 Gbit/s)on–off-keying(OOK)signal by using a high-bandwidth(BW)silicon photonic(SiP)transmitter with the aid of digital signal processing(DSP).In this transmitter,a four-channel SiP modulator chip is co-packaged with a four-channel driver chip,with a measured 3 dB BW of 40 GHz.DSP is applied in both the transmitter and receiver sides for pre-/post-compensation and bit error rate(BER)calculation.Back-to-back(B2B)BERs of the PAM-4 signal and OOK signal are first measured for each channel of the transmitter with respect to a variety of data rates.Similar BER performance of four channels shows good uniformity of the transmitter between different channels.The BER penalty of the PAM-4 and OOK signals for 500 m and 1 km standard single-mode fiber(SSMF)transmission is then experimentally tested by using one channel of the transmitter.For a 200 Gbit/s PAM-4 signal,the BER is below the hard-decision forward error correction(HD-FEC)threshold for B2B and below the soft-decision FEC(SD-FEC)threshold after 1 km transmission.For a 120 Gbit/s OOK signal,the BER is below SD-FEC threshold for B2B.After 500 m and 1 km transmission,the data rate of the OOK signal shrinks to 119 Gbit/s and 118 Gbit/s with the SD-FEC threshold,respectively.Finally,the 800 Gbit/s PAM-4 signal with 1 km transmission is achieved with the BER of all four channels below the SD-FEC threshold. | Hongguang Zhang Miaofeng Li Yuguang Zhang Di Zhang Qiwen Liao Jian He Shenglei Hu Bo Zhang Lei Wang Xi Xiao Nan Qi Shaohua Yu | 2020 | Photonics Research2020,8,11: | 5 |
| 10 | Splenectomy with endoscopic variceal ligation is superior to splenectomy with pericardial devascularization in treatment of portal hypertension显示文摘AIM: To investigate the therapeutic efficacy and complications of splenectomy with endoscopic variceal ligation (EVL) and splenectomy with pericardial devascularization (i.e. Hassab’s operation) in patients with portal hypertension. METHODS: A total of 103 patients with liver cirrhosis and portal hypertension were randomly selected to receive either splenectomy with EVL (n = 53, group A) or Hassab’s operation (n = 50, group B). RESULTS: The portal blood flow volume, the presence of portal vein thrombosis, gastric emptying time and free portal venous pressure (FPP) before and after the operation were determined. Patients were followed up for up to 64 mo with an average of 45 mo, and the Dagradi classification of variceal veins and the grading of portal hypertension gastropathy (PHG) were evaluated. It was found that all esophageal varices were occluded or decreased to grade Ⅱ or less in both groups. There was little difference in the recurrence rate of esophageal varices (11.9% vs 13.2%) and the re-bleeding rate (7.1% vs 5.3%) between groups A and B. The incidence of complications and the percentage of patients with severe PHG after the operation were significantly higher in group B (60.0% and 52.0%) than in group A (32.1% and 20.8%, P < 0.05). No patients died of operation-related complications. There was no significant difference in gastric emptying time, FPP and portal blood flow volume between the two groups. CONCLUSION: The results suggest that splenectomy with EVL achieves similar therapeutic efficacy to that of Hassab’s operation in terms of the recurrence rate of esophageal varices and the re-bleeding rate, but theformer results in fewer and milder complications. | Nan Lin Bo Liu Rui-Yun Xu He-Ping Fang Mei-Hai Deng | 2006 | World Journal of Gastroenterology2006,12,45: | 4 |
| 11 | Preparation and evaluation of a new releasable PEGylated tumor necrosis factor-α(TNF-α) conjugate for therapeutic application显示文摘To design a releasable PEGylated TNF-α(rPEG-TNF-α ), a cathepsin B-sensitive dipeptide (Val-Cit moiety) was inserted into conventional PEG-modified TNF- (PEG-TNF- ), facilitating its clinical use for anti-tumor therapy. Comparative pharmaco- kinetic and pharmacodynamic studies showed that the half-lives of both PEGylated forms of TNF-α were ~60-fold greater than that of unmodified TNF-α . In addition, the in vitro bioactivity of rPEG-TNF-α was greater than that of PEG-TNF-α with the same degree of PEG modification. Release of TNF-α from rPEG-TNF-α in vitro was dependent on the presence of cathepsin B and was inhibited by a cathepsin B inhibitor. Despite the potent cytotoxicity of unmodified TNF-α against normal cells, its PEGylated forms at higher TNF-α concentrations showed low cytotoxic activity against these cells. In contrast, both forms of PEGylated TNF-α showed potent cytotoxic activity against the B16 and L929 cell lines, with rPEG-TNF-α being 5- and 9- fold more potent, respectively, than PEG-TNF-α . Moreover, rPEG-TNF-α was a more potent in vivo antitumor agent than PEG-TNF-α . | DAI ChuanYun FU Ya CHEN ShaoCheng LI Biao YAO Bo LIU WanHong ZHU LiQing CHEN Nan CHEN Ji ZHANG Qiang | 2013 | Science China(Life Sciences)2013,56,1: | 4 |
| 12 | Recent advances in the development of nanomedicines for the treatment of ischemic stroke显示文摘Ischemic stroke is still a serious threat to human life and health,but there are few therapeutic options available to treat stroke because of limited blood-brain penetration.The development of nanotechnology may overcome some of the problems related to traditional drug development.In this review,we focus on the potential applications of nanotechnology in stroke.First,we will discuss the main molecular pathological mechanisms of ischemic stroke to develop a targeted strategy.Second,considering the important role of the blood-brain barrier in stroke treatment,we also delve mechanisms by which the blood-brain barrier protects the brain,and the reasons why the therapeutics must pass through the blood-brain barrier to achieve efficacy.Lastly,we provide a comprehensive review related to the application of nanomaterials to treat stroke,including liposomes,polymers,metal nanoparticles,carbon nanotubes,graphene,black phosphorus,hydrogels and dendrimers.To conclude,we will summarize the challenges and future prospects of nanomedicine-based stroke treatments. | Xing Tian Taojian Fan Wentian Zhao Ghulam Abbas Bo Han Ke Zhang Nan Li Ning Liu Weiyuan Liang Hao Huang Wen Chen Bing Wang Zhongjian Xie | 2021 | Bioactive Materials2021,6,9: | 4 |
| 13 | The copper polymetallic deposits and resource potential in the Tibet Plateau显示文摘Many large and super-large copper deposits have been discovered and explored in the Tibet Plateau,which makes it the most important copper resource reserve and development base in China.Based on the work of the research team,the paper summarizes the geological characteristics of the main copper deposits in Tibet and puts forward a further prospecting direction.A series of large accumulated metal deposits or ore districts from subduction of Tethys oceanic crust to India-Asia collisionhave been discovered,such as Duolong Cu(Au)ore district and Jiama copper polymetallic deposit.The ore deposits in the Duolong ore district are located in the lowstand domain,the top of lowstand domain,and the highstand domain of the same magmatic-hydrothermal metallogenic system,and their relative positions are the indicators for related deposits in the Bangong Co-Nujiang metallogenic belt.The polycentric metallogenic model of the Jiama copper polymetallic deposit is an important inspiration for the exploration of the porphyry mineralization related to collision orogeny.Further mineral exploration in the Tibet Plateau should be focused on the continental volcanic rocks related to porphyry-epithermal deposits,orogenic gold deposits,hydrothermal Pb-Zn deposits related to nappe structures,skarn Cu(Au)and polymetallic deposits,and the Miocene W-Sn polymetallic deposits. | Ju-xing Tang Huan-huan Yang Yang Song Li-qiang Wang Zhi-bo Liu Bao-long Li Bin Lin Bo Peng Gen-hou Wang Qing-gao Zeng Qin Wang Wei Chen Nan Wang Zhi-jun Li Yu-bin Li Yan-bo Li Hai-feng Li Chuan-yang Lei | 2021 | China Geology2021,4,1: | 4 |
| 14 | Inverse kinematics model of parallel macro-micro manipulator system显示文摘An improved design, which employs the integration of optic, mechanical and electronic technologies for the next generation large radio telescope, is presented in this note. The authors propose the concept of parallel macro-micro manipulator system from the feed support structure with a rough tuning subsystem based on a cable structure and a fine tuning subsystem based on the Stewart platform. According to the requirement of astronomical observation, the inverse kinematics model of this parallel macro-micro manipulator system is deduced. This inverse kinematics model is necessary for the computer-controlled motion of feed. | WANG Wenli DUAN Baoyan LIU Hong NAN Rendong PENG Bo | 2000 | Chinese Science Bulletin2000,45,24: | 4 |
| 15 | Characteristics of soil organic carbon and total nitrogen under various grassland types along a transect in a mountain-basin system in Xinjiang, China显示文摘Soil organic carbon(SOC) and soil total nitrogen(STN) in arid regions are important components of global C and the N cycles, and their response to climate change will have important implications for both ecosystem processes and global climate feedbacks. Grassland ecosystems of Funyun County in the southern foot of the Altay Mountains are characterized by complex topography, suggesting large variability in the spatial distribution of SOC and STN. However, there has been little investigation of SOC and STN on grasslands in arid regions with a mountain-basin structure. Therefore, we investigated the characteristics of SOC and STN in different grassland types in a mountain-basin system at the southern foot of the Altai Mountains, north of the Junggar Basin in China, and explored their potential influencing factors and relationships with meteorological factors and soil properties. We found that the concentrations and storages of SOC and STN varied significantly with grassland type, and showed a decreasing trend along a decreasing elevation gradient in alpine meadow, mountain meadow, temperate typical steppe, temperate steppe desert, and temperate steppe desert. In addition, the SOC and STN concentrations decreased with depth, except in the temperate desert steppe. According to Pearson's correlation values and redundancy analysis, the mean annual precipitation, soil moisture content and soil available N concentration were significantly positively correlated with the SOC and STN concentrations. In contrast, the mean annual temperature, p H, and soil bulk density were significantly and negatively correlated with the SOC and STN concentrations. The mean annual precipitation and mean annual temperature were the primary factors related to the SOC and STN concentrations. The distributions of the SOC and STN concentrations were highly regulated by the elevation-induced differences in meteorological factors. Mean annual precipitation and mean annual temperature together explained 97.85% and 98.38% of the overall variations in the SOC and STN concentrations, respectively, at soil depth of 0–40 cm, with precipitation making the greatest contribution. Our results provide a basis for estimating and predicting SOC and STN concentrations in grasslands in arid regions with a mountain-basin structure. | BI Xu LI Bo NAN Bo FAN Yao FU Qi ZHANG Xinshi | 2018 | Journal of Arid Land2018,10,4: | 4 |
| 16 | Substantial transition to clean household energy mix in rural China显示文摘The household energy mix has significant impacts on human health and climate,as it contributes greatly to many health-and climate-relevant air pollutants.Compared to the well-established urban energy statistical system,the rural household energy statistical system is incomplete and is often associated with high biases.Via a nationwide investigation,this study revealed high contributions to energy supply from coal and biomass fuels in the rural household energy sector,while electricity comprised∼20%.Stacking(the use of multiple sources of energy)is significant,and the average number of energy types was 2.8 per household.Compared to 2012,the consumption of biomass and coals in 2017 decreased by 45%and 12%,respectively,while the gas consumption amount increased by 204%.Increased gas and decreased coal consumptions were mainly in cooking,while decreased biomass was in both cooking(41%)and heating(59%).The time-sharing fraction of electricity and gases(E&G)for daily cooking grew,reaching 69%in 2017,but for space heating,traditional solid fuels were still dominant,with the national average shared fraction of E&G being only 20%.The non-uniform spatial distribution and the non-linear increase in the fraction of E&G indicated challenges to achieving universal access to modern cooking energy by 2030,particularly in less-developed rural and mountainous areas.In some non-typical heating zones,the increased share of E&G for heating was significant and largely driven by income growth,but in typical heating zones,the time-sharing fraction was<5%and was not significantly increased,except in areas with policy intervention.The intervention policy not only led to dramatic increases in the clean energy fraction for heating but also accelerated the clean cooking transition.Higher income,higher education,younger age,less energy/stove stacking and smaller family size positively impacted the clean energy transition. | Guofeng Shen Rui Xiong Yanlin Tian Zhihan Luo Bahabaike Jiangtulu Wenjun Meng Wei Du Jing Meng Yuanchen Chen Bing Xue Bin Wang Yonghong Duan Jia Duo Fenggui Fan Lei Huang Tianzhen Ju Fenggui Liu Shunxin Li Xianli Liu Yungui Li Mu Wang Ying Nan Bo Pan Yanfang Pan Lizhi Wang Eddy Zeng Chao Zhan Yilin Chen Huizhong Shen Hefa Cheng Shu Tao | 2022 | National Science Review2022,9,7: | 4 |
| 17 | The Lum inescence Properties of M'type of YTaO_4∶Eu显示文摘A series of Eu 3+ doped of Mtype of yttrium orthotantalate Y 1-x Eu x TaO 4( x =0—0.30) was sythesized. The influence of activator concentration on luminescence properties was studied in detail. The strong evidence from excitation spectra, emission spectra and diffusive reflection spectra of this system shows that there is energy transfer from TaO 3- 4 to Eu 3+ via the charge transfer and spectral overlap. | LI Bo, GU Zhen nan ** , DONG Yi , LIN Jian hua and SU Mian zeng (Chemistry Department, State key Laboratory of Rare Earth Materials Chemistry and Applications , Peking University, Bejing 100871, P. R. China) (Received Dec. 26, 1 | 1999 | Chemical Research in Chinese Universities1999,15,3: | 3 |
| 18 | 研究以乳清蛋白美拉德反应产物为壁材的β-胡萝卜素微胶囊稳定性(英文)显示文摘目的:从温度、pH、空气、白炽光照和紫外光照五个方面,研究环境变化对微胶囊贮存稳定性的影响。创新点:首次证实乳清蛋白与半乳糖美拉德反应产物(WPI-半乳糖MRPs)有助于提高β-胡萝卜素微胶囊的贮存稳定性。方法:利用扫描电镜观察β-胡萝卜素微胶囊形态特征;用激光粒度分析微胶囊颗粒的大小;以微胶囊的保留率为检测指标,研究温度、pH、空气、白炽光照及其紫外光照对微胶囊贮存稳定性的影响。结论:以WPI-半乳糖MRPs为壁材的β-胡萝卜素微胶囊表面光滑完整,没有裂缝和孔隙,有少量典型的凹陷;以WPI-半乳糖MRPs为壁材的微胶囊粒径比以WPI-半乳糖混合物为壁材的微胶囊粒径小;从温度、pH、空气、白炽光照及紫外光照五个方面进行研究发现,以WPI-半乳糖MRPs为壁材的β-胡萝卜素微胶囊贮存稳定性显著优于以WPI半乳糖的混合物为壁材的β-胡萝卜素微胶囊贮存稳定性;WPI-半乳糖MRPs有助于提高β-胡萝卜素微胶囊的稳定性。 | Zhan-mei JIANG Li-na BAI Nan YANG Zhi-biao FENG Bo TIAN | 2017 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2017,18,10: | 3 |
| 19 | Characterization of Avian Influenza A(H7N9) Virus Prevalence in Humans and Poultry in Huai′an,China:Molecular Epidemiology,Phylogenetic,and Dynamics Analyses显示文摘Objective To trace the source of human H7N9 cases in Huai'an and elucidate the genetic characterization of Huai'an strains associated with both humans and birds in live poultry market.Methods An enhanced surveillance was implemented when the first human H7N9 case was confirmed in Huai'an.Clinical specimens,cloacal swabs,and fecal samples were collected and screened by real-time reverse transcription-polymerase chain reaction(RT-PCR) for H7N9 virus.The positive samples were subjected to further RT-PCR and genome sequencing.The phylodynamic patterns of H7N9 virus within and separated from Huai'an and evolutionary dynamics of the virus were analyzed.Results Six patients with H7N9 infection were previously exposed to live poultry market and presented symptoms such as fever(>38.0 °C) and headaches.Results of this study support the hypothesis that live poultry markets were the source of human H7N9 exposure.Phylogenetic analysis revealed that all novel H7N9 viruses,including Huai'an strains,could be classified into two distinct clades,A and B.Additionally,the diversified H7N9 virus circulated in live poultry markets in Huai'an.Interestingly,the common ancestors of the Huai'an H7N9 virus existed in January 2012.The mean nucleotide substitution rates for each gene segment of the H7N9 virus were(3.09-7.26)×10-3 substitutions/site per year(95% HPD:1.72×10-3 to 1.16×10-2).Conclusion Overall,the source of exposure of human H7N9 cases in Huai'an was live poultry market,and our study highlights the presence of divergent genetic lineage of H7N9 virus in both humans and poultry specimens in Huai'an. | YANG Peng Fei YAN Qing Li LIU Chun Cheng XING Ya Dong ZHANG Min Hui GAO Qiang YU Hao YAO Hai Bo HE Nan Jiang | 2016 | Biomedical and Environmental Sciences2016,29,10: | 3 |
| 20 | A rhizobia strain isolated from root nodule of gymno-sperm Podocarpus macrophyllus显示文摘Symbiotic nitrogen fixation of rhizobia and leguminous plants is considered as the most important biologic nitrogen fixation system on earth. Symbiotic nodulation of gymnosperm Podocarpus macro-phyllus and rhizobia has never been reported. In this study, 11 endophytic bacteria strains were isolated from root nodules of P. macrophyllus and its variation P. macrophyllus var. maki. The plant infection tests on these strains indicated that the isolated strains could be nodulated on P. macrophyllus plants, and weak nitrogenase activity of nodules was found in acetylene reduction method. According to the physiological and biochemical characteristics of the 11 strains, GXLO 02 was selected as the representative strain. 16S rDNA full-length sequence analysis of GXLO 02 confirmed that the representative strain GXLO 02 belongs to Rhizobium sp. | HUANG BaoLing, LU ChengQun, WU Bo & FAN LiQin 1 Forestry College, Guangxi University, Nanning 530004, China 2 Guangxi Key Laboratory of Subtropical Bioresource Conservation and Utilization, Nanning 530004, China | 2007 | Science China(Life Sciences)2007,50,2: | 3 |