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Na Cao, Xiao Rong Chen, Hao Hua He, Chang Lan Zhu, Shuo Cai, Tao Xu, Heng Wang Xie, Fang Ping Liu
Super hybrid early rice variety Ganxin 203 was used as test material, and four foliar spraying treatments were set using clear water as the control group (CK), and 3 concentrations of potassium dihydrogen phosphate (KH2 PO4 ) with 0.1% (P1), 0.3% (P3), 0.5% (P5) and po-tash (MH). The effects of spraying P and K fertilizers on the leaf temperature, yield and physiolo-gical characteristics in double-season early rice under low temperature conditions during panicle primordium differentiation stage were studied...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Guan Tao Chen, Jun Zheng, Tian Chi Peng, Shun Li, Xi Rong Qiu, Yu Qin Chen, Hao Yu Ma, Li Hua Tu
Fine root morphology and chemistry characteristics of dominant species Castanopsis platya-cantha in an evergreen broad-leaved forest in subtropical China and their response to nitrogen (N) addition were determined in order 1st to 5th. With the increase of root order, C. platyacantha root diameter, tissue density (RTD), and K content increased, and specific root length (SRL), speci-fic surface area (SRA) and contents of N, P and Mg decreased. Nitrogen addition significant increased N content and decreased Mg content and C/N of fine roots...
November 2017: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Duo Ju Zhu, Zhong Ming Wen, Jing Zhang, Yu Tao, Hong Wen Zeng, Yang Tang
To investigate the effects of the introduction of Robinia pseudoacacia on the functional structure of plant communities, we selected paired-plots of R. pseudoacacia communities and native plant communities across different vegetation zones, i.e., steppe zone, forest-steppe zone, forest zone in hilly-gully region of Loess Plateau, China. We measured several functional characteristics and then compared the functional structures of R. pseudoacacia and native plant communities in different vegetation zones. The results showed that the variation of the functional traits across different vegetation zones were consistent in R...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Wen Jun He, Guang Xuan Han, Yan Ning Xu, Xi Tao Zhang, An Dong Wang, Chun Guang Che, Bao Yu Sun, Xiao Shuai Zhang
As a unique hydrological characteristic, the tidal action can strongly affect carbon balance in a salt marsh despite their short duration. Using the eddy covariance technique, we measured the net ecosystem CO2 exchange (NEE) and its environmental factors and tidal change over a salt marsh in the Yellow River Delta. It aimed to investigate the effect of tidal process and drying and wetting cycles induced by tides on NEE. The results showed that the tidal process promoted the daytime CO2 uptake, but it didn't clearly affect the nighttime CO2 release...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Zhi Peng Wang, Xian Zhou Zhang, Yong Tao He, Meng Li, Pei Li Shi, Jia Xing Zu, Ben Niu
Precipitation change is an important factor in the inter-annual variation of grassland growth on the Tibetan Plateau. The total amount, distribution pattern and concentration time are three basic characteristics of precipitation change. The temporal and spatial characteristics of precipitation change were analyzed based on climate data of 145 meteorological stations on the Tibetan Plateau and nearby areas from 2000 to 2015. The total precipitation amount was characterized by annual precipitation, distribution pattern of precipitation during the year was characterized by improved precipitation concentration index (PCI), and precipitation centroid (PC) was defined to indicate the change in precipitation concentrated time...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Ning Zong, Cheng Duan, Shou Bao Geng, Xi Chai, Pei Li Shi, Yong Tao He
A long-term experiment, involving exogenous N addition and simulated warming, was conducted in an alpine meadow in Damxung, northern Tibet, to study how warming and N addition influence community production and biomass allocation. The results showed that warming resulted in a warm but dry microsite, that was, air temperature increased by 1.6 ℃ and soil surface temperature increased by 1.4 ℃, and soil water content decreased by 4.7%. Under no N addition treatments, warming significantly decreased plant aboveground biomass by 61...
January 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Zhaowen Liu, Jie Zhang, Kai Zhang, Junying Zhang, Xiaojing Li, Wei Cheng, Mingli Li, Liansheng Zhao, Wei Deng, Wanjun Guo, Xiaohong Ma, Qiang Wang, Paul M Matthews, Jianfeng Feng, Tao Li
Disease association studies have characterized altered resting-state functional connectivities describing schizophrenia, but failed to model symptom expression well. We developed a model that could account for symptom severity and meanwhile relate this to disease-related functional pathology. We correlated BOLD signal across brain regions and tested separately for associations with disease (disease edges) and with symptom severity (symptom edges) in a prediction-based scheme. We then integrated them in an "edge bi-color" graph, and adopted mediation analysis to test for causality between the disease and symptom networks and symptom scores...
April 24, 2018: Human Brain Mapping
Ling Zhu, Xia Cao, Xiao-Feng Tao
PURPOSE: To compare the teaching result of case-based learning based on cone-beam CT (CBCT) software and traditional pantomography. METHODS: Thirty-eight interns (7-year programme) of grade 2011 from College of Stomatology, Shanghai Jiao Tong University were enrolled. The inner diameter of the nasopalatine ducts (A), the length of upper canine's pulp cavity (B), the length between root furcation of upper first molar and the maxillary sinus (C), the length between the root of lower wisdom tooth and the inferior alveolar nerve (D) were measured on pantomographic films and CBCT in the same case...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Qi Sun, Min-Jun Dong, Xing Yang, Meng-da Jiang, Xiao-Feng Tao
PURPOSE: To assess the capability of monochromatic energy images of gemstone spectral imaging(GSI) by using spectral CT in reducing metal artifacts of oral and maxillofacial region. METHODS: Spectral CT imaging was applied to 46 patients with metallic implants with GSI sequence to measure CT numbers (expressed in Hounsfield units, HU) and SD (standard deviation) numbers of the soft tissues. 11 monochromatic-image groups were obtained, ranging from 40 keV(kiloelectronvolts) to 140 keV (every 10 keV as one group)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Yin-Hua Jiang, Hai-Biao Tao, Xiao-Ming Jin, Xiao-Kun Li
PURPOSE: To evaluate the clinical effect of simple osteotome sinus floor elevation without bone grafting in the posterior maxilla area with less bone height. METHODS: Twenty eight cases with posterior maxillary bone deficiency were included.Their residual alveolar bone height (RBH) was less than 7 mm. 40 ITI implants were implanted. Among them, 6 implants were implanted in the sites with RBH less than 4 mm (group 1), 34 were implanted in the sites with RBH between 4 to 7 mm (group 2)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Wu-Qiang Wu, Qi Wang, Yanjun Fang, Yuchuan Shao, Shi Tang, Yehao Deng, Haidong Lu, Ye Liu, Tao Li, Zhibin Yang, Alexei Gruverman, Jinsong Huang
The efficiencies of perovskite solar cells (PSCs) are now reaching such consistently high levels that scalable manufacturing at low cost is becoming critical. However, this remains challenging due to the expensive hole-transporting materials usually employed, and difficulties associated with the scalable deposition of other functional layers. By simplifying the device architecture, hole-transport-layer-free PSCs with improved photovoltaic performance are fabricated via a scalable doctor-blading process. Molecular doping of halide perovskite films improved the conductivity of the films and their electronic contact with the conductive substrate, resulting in a reduced series resistance...
April 24, 2018: Nature Communications
Yang Jianhong, Yan Wei, Yu Yamei, Wang Yuxi, Yang Tao, Xue Linlin, Yuan Xue, Long Caofeng, Liu Zuowei, Chen Xiaoxin, Hu Mengshi, Zheng Li, Qiu Qiang, Pei Heying, Li Dan, Wang Fang, Bai Peng, Wen Jiaolin, Ye Haoyu, Chen Lijuan
Inhibitors that bind to the paclitaxel- or vinblastine-binding sites of tubulin have been part of the pharmacopoeia of anticancer therapy for decades. However, tubulin inhibitors that bind to the colchicine-binding site are not used in clinical cancer therapy, because of their low therapeutic index. To address multidrug resistance to many conventional tubulin-binding agents, numerous efforts have attempted to clinically develop inhibitors that bind the colchicine-binding site. Previously, we have found that millepachine (MIL), a natural chalcone-type small molecule extracted from the plant Millettia pachycarpa, and its two derivatives (MDs) SKLB028 and SKLB050 have potential antitumor activities both in vitro and in vivo...
April 24, 2018: Journal of Biological Chemistry
Yeqi Huang, Tao Deng, Zhenning Li, Nan Wang, Chanqin Yin, Shiqiang Wang, Shaojia Fan
This article uses the WRF-CMAQ model to systematically study the source apportionment of PM2.5 under typical meteorological conditions in the dry season (November 2010) in the Pearl River Delta (PRD). According to the geographical location and the relative magnitude of pollutant emission, Guangdong Province is divided into eight subdomains for source apportionment study. The Brute-Force Method (BFM) method was implemented to simulate the contribution from different regions to the PM2.5 pollution in the PRD...
April 21, 2018: Science of the Total Environment
Yuan-Yuan Wang, Jin Zhao, Qinge Zhang, Yan Zhang, Baolian Bai, Chee H Ng, Gabor S Ungvari, Fu-Jun Jia, Yu-Tao Xiang
To investigate the prevalence of depressive syndrome and their association with demographic and clinical characteristics in Chinese patients infected with the human immunodeficiency virus (HIV). A total of 416 patients with HIV infection were consecutively screened and enrolled in the study. Depressive syndrome was assessed with the Center for Epidemiologic Studies-Depression Scale (CES-D). The proportion of depressive syndrome was 36.3%. Patients with depressive syndrome were younger, and were more likely to have severe anxiety symptoms, religious beliefs and psychological treatment...
April 24, 2018: AIDS Care
Siqiu Guo, Tao Zhang, Yulong Song, Feng Qian
This paper presents a particle swarm tracking algorithm with improved inertia weight based on color features. The weighted color histogram is used as the target feature to reduce the contribution of target edge pixels in the target feature, which makes the algorithm insensitive to the target non-rigid deformation, scale variation, and rotation. Meanwhile, the influence of partial obstruction on the description of target features is reduced. The particle swarm optimization algorithm can complete the multi-peak search, which can cope well with the object occlusion tracking problem...
April 23, 2018: Sensors
Tingting Shen, Tao Wang, Yanzan Sun, Yating Wu, Yanliang Jin
As nodes in wireless sensor networks are usually powered by nonrenewable batteries, energy efficient design becomes critical. This paper considers a battery-powered transmitter using on-off keying (OOK) modulation and studies its energy efficiency in terms of the battery’s energy consumption for per bit transmission (BECPB). In particular, the transmitter may use one of two distinct types of batteries with battery utilization factor (BUF) depending on discharge current. The first has an instantaneous discharge current (IDC)-based BUF, while the second has a mean discharge current (MDC)-based BUF...
April 23, 2018: Sensors
Jiang-Tao Zhang, Bo-Wen Wu, San-An Wu
The mealybug genus Saccharicoccus Ferris includes three species: S. isfarensis (Borchsenius, 1949), S. sacchari (Cockerell, 1895) and a new species, S. chinensis Zhang, Wu Wu sp. n. The new species, collected on Miscanthus sp. (Poaceae) and other poaceous weeds in China, is described and illustrated, and molecular analyses based on the mitochondrial gene cytochrome c oxidase subunit I (COI) are provided. Additional data on the distribution and host-plants of each species are given, and a key to the adult females of Saccharicoccus species is provided...
January 23, 2018: Zootaxa
Haijun Lei, Zhongwei Huang, Tao Han, Qiuming Luo, Ye Cai, Gang Liu, Baiying Lei
It is known that the symptoms of Parkinson's disease (PD) progress successively, early and accurate diagnosis of the disease is of great importance, which slows the disease deterioration further and alleviates mental and physical suffering. In this paper, we propose a joint regression and classification scheme for PD diagnosis using baseline multi-modal neuroimaging data. Specifically, we devise a new feature selection method via relational learning in a unified multi-task feature selection model. Three kinds of relationships (e...
April 10, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Jirui Lin, Laiyuan Xiao, Tao Wu
BACKGROUND: Video-based face recognition has attracted much attention owning to its wide range of applications such as video surveillance. There are various approaches for facial feature extraction. Feature vectors extracted by these approaches tend to have large dimension and may include redundant information for face representation, which limits the application of methods with high accuracy such as machine learning. OBJECTIVE: Facial landmarks represent the intrinsic characteristics of human face, which can be utilized to decrease redundant information and reduce the computation complexity...
April 10, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Xia Wang, Chaoran Dou, Yulin Yan, Lujie Song, Bing Hu, Tao Ying
OBJECTIVES: To explore the value of transurethral contrast-enhanced ultrasonography (CEUS) in the diagnosis and evaluation of female urethral diverticula. METHODS: This study prospectively enrolled 35 women with periurethral cystic lesions, who underwent preoperative transurethral CEUS at our single center between April 2015 and May 2017. The diagnosis of a urethral diverticulum was made by the detection of microbubbles inside the lesion. Data regarding the structure and ostia of the diverticula were collected and then compared with intraoperative findings...
April 24, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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