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The ionic-complementary self-assembling peptides discovered by Zhang Shuguang have solution-to-gel (sol-gel) transition capacity and one such peptide RADA16 has been commercialized into hemostatic agents ... The ioniccomplementary self-assembling peptide was firstly discovered by Zhang Shuguang in the yeast protein zuotin in 1993 9, 10 . ...doi:10.1039/d1na00534k fatcat:etxzbuoefvcjjjlbnfkdhafnia
Author Contributions: Fangmin Li proposed the idea of the paper; Fangmin Li and Mohammed Abdulaziz Aide Al-qaness conceived and designed the experiments. ... Mohammed Abdulaziz Aide Al-qaness, Xiaolin Ma, Yong Zhang and Guo Liu performed the experiments. Mohammed Abdulaziz Aide Al-qaness analyzed the data and wrote the paper. ...doi:10.3390/app6110329 fatcat:zwk3ibezsrgbdhv4orb2r4op6m
The center of gravity of the computer industry is now moving from personal computing into embedded computing. At present, the key to realize intellectual control and network control of manufacturing equipments is to embed the embedded system into manufacturing equipment and extend the control method of manufacturing equipments to the remote network through the network function of the embedded system. In this paper, the characteristic of embedded system and the architecture of embedded systemdoi:10.1109/skg.2005.120 dblp:conf/skg/ZhangZLW05 fatcat:bol6f63jgfayrhsjd32vlweuki
more »... d are introduced firsty. Then, the interface method between embedded system and grid are discussed. The control model of embedded system resources under the grid environment, the method of overall sharing embedded system and its equipment are also describled. After that, the embedded system grid technology of sharing and controlling embedded resources are presented.
Ecosystem services are comprehensive and quantitative indicators for describing ecosystem–human interactions. China has experienced rapid urbanization in the past 30 years, which has created a significant impact on regional ecosystem services. However, whether the impact is linear is not clear as yet. In this study, the Jiangsu province, a main body of the Chinese Yangtze River Delta city cluster, was chosen as a case study. Multi-source remotely-sensed geospatial data, includingdoi:10.3390/su11072073 fatcat:zvb53nb7qfazldpofq4qqw6xum
more »... land use, vegetation, and socio-economic data, were collected to estimate the total amount of ecosystem services (TESV) and urbanization levels. Subsequently, the relationships between TESV and urbanization indices (i.e., gross domestic product (GDP) per unit area, GPUA; population per unit area, PPUA; and built-up land proportion, BULP) were determined using the Pearson correlation analysis and piecewise linear regression. The primary findings of this study were as follows: (1) There was a distinct spatial pattern in TESV, which gradually increased from west to east with high-value areas located in eastern coastal areas of Jiangsu. Among different land use types, cropland and woodland contributed the most to TESV; (2) The three urbanization indices had spatial patterns, indicating higher urbanization in southern Jiangsu than in central or northern Jiangsu; and (3) Once GPUA and PPUA exceeded threshold values of 3719.55 × 104 yuan/km2 and 744.37 person/km2, respectively, TESV sharply decreased with an increase in these indices. However, the BULP showed a linear and significantly negative relationship with TESV at all values, which indicated that the impacts of economic and population growth on TESV lagged behind that of built-up land expansion. These findings provide a potentially significant reference for decision-makers to rationally enhance regional ecosystem services during rapid urbanization processes.
Fig. 5 5 Out-of-order prediction Zhang et al. ... to 50 percent, as shown in Figs. 11(b), 12(b), 13(b), and 14(b) Fig. 10 Fig. 12 1012 The CDFs (Cumulative Distribution Functions) of flow size under realistic workloadsFig. 11 Data mining workload Zhang ...doi:10.1186/s13677-021-00252-8 fatcat:ntlehtbttrh65crepqjb364zoi
the experiments and made the figures; Yong Zhang and Fangmin Li analyzed the data; and Yong Zhang prepared and wrote the paper. ... Author Contributions: Yong Zhang and Fangmin Li initiated and discussed the research problem; Yong Zhang conceived and developed the methods; Yong Zhang and Mohammed Abdulaziz Aide Al-Qaness performed ...doi:10.3390/app6100274 fatcat:zjooj265izdspggbawclffrbai
Author Contributions This work is part of a research project conducted by Yong Zhang under the supervision of Fangmin Li. ...doi:10.3390/a8041129 fatcat:6ebxksyrazgt7iv3yfwi4wwmui
In this paper, we propose the multiwindow Adaptive S-method (AS-method) distribution approach used in the time-frequency analysis for radar signals. Based on the results of orthogonal Hermite functions that have good time-frequency resolution, we vary the length of window to suppress the oscillating component caused by cross-terms. This method can bring a better compromise in the auto-terms concentration and cross-terms suppressing, which contributes to the multi-component signal separation.doi:10.3390/s17122769 pmid:29186075 pmcid:PMC5750816 fatcat:3k2hbw6g5bgmfjghw3y3slqcgq
more »... ally, the effective micro signal is extracted by threshold segmentation and envelope extraction. To verify the proposed method, six states of motion are separated by a classifier of a support vector machine (SVM) trained to the extracted features. The trained SVM can detect a human subject with an accuracy of 95.4% for two cases without interference.
Due to the heterogeneity and complexity of terrestrial ecosystems of East Asia, a better understanding of relationships between climate change and net primary productivity (NPP) distribution is important to predict future carbon dynamics. The objective of this study is to analyze the temporal-spatial patterns of NPP in East Asia (10°S -55°N, 60 -155°E) from 1982 to 2006 using the process-based Boreal Ecosystem Productivity Simulator (BEPS) model. Prior to the regional simulation, the annualdoi:10.3319/tao.2012.03.28.01(a) fatcat:mghyb33fivhw5pqrmrttz5nsza
more »... lated NPP was validated using field observed NPP demonstrating the ability of BEPS to simulate NPP in different ecosystems of East Asia. Simulated NPP exhibited a southeast-northwest decreasing distribution, above 1000 g C m -2 yr -1 in most areas of Southeast Asia and below 50 g C m -2 yr -1 in northwestern China. The annual total of simulated NPP was 11.27 Pg C yr -1 (~18.78% of the global total) averaged over 25 years from 1982 to 2006. Total NPP increased by 7.33%, mainly in the northwestern part of the study area. The change of NPP was determined by precipitation in northern and southwestern regions, vapor pressure deficit and precipitation in North and Northeast Plains of China, radiation in South China, and temperature on the Tibetan Plateau. Climate was the main factor regulating the NPP trends in the interior and northern parts of the study area while the change in leaf area index was the factor dominating the trends of NPP in the eastern part of the study area.
We characterized bactericidal permeability-increasing proteins (BPIs) of the squid Euprymna scolopes , EsBPI2 and EsBPI4. They have molecular characteristics typical of other animal BPIs, are closely related to one another, and nest phylogenetically among invertebrate BPIs. Purified EsBPIs had antimicrobial activity against the squid's symbiont, Vibrio fischeri , which colonizes light organ crypt epithelia. Activity of both proteins was abrogated by heat treatment and coincubation with specificdoi:10.1128/mbio.00040-17 pmid:28377525 pmcid:PMC5380838 fatcat:dszu467x7fbg3amjzcvvm4xbve
more »... antibodies. Pretreatment under acidic conditions similar to those during symbiosis initiation rendered V. fischeri more resistant to the antimicrobial activity of the proteins. Immunocytochemistry localized EsBPIs to the symbiotic organ and other epithelial surfaces interacting with ambient seawater. The proteins differed in intracellular distribution. Further, whereas EsBPI4 was restricted to epithelia, EsBPI2 also occurred in blood and in a transient juvenile organ that mediates hatching. The data provide evidence that these BPIs play different defensive roles early in the life of E. scolopes , modulating interactions with the symbiont. IMPORTANCE This study describes new functions for bactericidal permeability-increasing proteins (BPIs), members of the lipopolysaccharide-binding protein (LBP)/BPI protein family. The data provide evidence that these proteins play a dual role in the modulation of symbiotic bacteria. In the squid-vibrio model, these proteins both control the symbiont populations in the light organ tissues where symbiont cells occur in dense monoculture and, concomitantly, inhibit the symbiont from colonizing other epithelial surfaces of the animal.
The prevalence of food allergy (FA) has increased worldwide. In China, the prevalence of FA in infants and school-aged children is well known, but the prevalence in preschool children is unknown. A total of 4151 preschool children aged 3 to 6 years in urban Wenzhou, China, were recruited for this cross-sectional study. Their parents completed a preliminary screening questionnaire, and a detailed FA questionnaire was given to parents whose children had suspected FA according to the preliminarydoi:10.1186/s12887-020-02115-8 pmid:32410652 fatcat:maxrgshcxvbmfndxx7zntiglle
more »... reening. According to the results of the detailed FA questionnaires, some children underwent a skin prick test (SPT) and specific IgE (sIgE) measurement. Children with abnormal SPT and/or sIgE results who did not meet the diagnostic criteria and those with negative SPT and sIgE results whose histories strongly supported FA underwent an oral food challenge (OFC). Of the 4151 children's parents who completed the surveys, 534 (12.86%) indicated a positive medical history of FA. Among the 40 children who underwent an OFC, 24 were positive. According to SPT and sIgE measurements, 11 children were diagnosed with FA. The prevalence of FA was at least 0.84%; children who dropped out during the study were considered FA-negative. Among the 35 children with FA, the most common allergic manifestation was skin symptoms. The most common allergic foods were egg, fish and shrimp. The parent-reported rate of FA in preschool children in urban Wenzhou was 12.86%. The prevalence of FA was at least 0.84%. Among all cases, the most common allergic food was eggs, and the most common allergic manifestation was skin symptoms. NCT03974555, registered on 30 May 2019 (www.clinicaltrials.gov).
Human activity recognition, tracking and classification is an essential trend in assisted living systems that can help support elderly people with their daily activities. Traditional activity recognition approaches depend on vision-based or sensor-based techniques. Nowadays, a novel promising technique has obtained more attention, namely device-free human activity recognition that neither requires the target object to wear or carry a device nor install cameras in a perceived area. Thedoi:10.3390/s16122043 pmid:27916948 pmcid:PMC5191024 fatcat:rbrjqtrue5a25gvolsfykrsl4q
more »... e technique for activity recognition uses only the signals of common wireless local area network (WLAN) devices available everywhere. In this paper, we present a novel elderly activities recognition system by leveraging the fluctuation of the wireless signals caused by human motion. We present an efficient method to select the correct data from the Channel State Information (CSI) streams that were neglected in previous approaches. We apply a Principle Component Analysis method that exposes the useful information from raw CSI. Thereafter, Forest Decision (FD) is adopted to classify the proposed activities and has gained a high accuracy rate. Extensive experiments have been conducted in an indoor environment to test the feasibility of the proposed system with a total of five volunteer users. The evaluation shows that the proposed system is applicable and robust to electromagnetic noise.
(Zhang et al. 2016) , and Paenibacillus polymyxa . ... Since overexpression of AlsR had been proved to be successful for enhancing AC production by B.subtilis (Zhang et al. 2013b) , similar protocol was attempted in S. marcescens MG1. ...doi:10.1186/s40643-016-0128-2 pmid:27942437 pmcid:PMC5124605 fatcat:4pxnvtk3wvafna7pfbllimzuju
BMC Public Health
Different water choices affect access to drinking water with different quality. Previous studies suggested social-economic status may affect the choice of domestic drinking water. The aim of this study is to investigate whether recent social economic changes in China affect residents' drinking water choices. Methods: We conducted a cross-sectional survey to investigate residents' water consumption behaviour in 2011. Gender, age, education, personal income, housing condition, risk perception anddoi:10.1186/1471-2458-12-450 pmid:22708830 pmcid:PMC3539858 fatcat:xuleqnecqvgp3i7rpmkcvst544
more »... personal preference of a certain type of water were selected as potential influential factors. Univariate and backward stepwise logistic regression analyses were performed to analyse the relation between these factors and different drinking water choices. Basic information was compared with that of a historical survey in the same place in 2001. Self-reported drinking-waterrelated diarrhoea was found correlated with different water choices and water hygiene treatment using chi-square test. Results: The percentage of tap water consumption remained relatively stable and a preferred choice, with 58.99% in 2001 and 58.25% in 2011. The percentage of bottled/barrelled water consumption was 36.86% in 2001 and decreased to 25.75% in 2011. That of household filtrated water was 4.15% in 2001 and increased to 16.00% in 2011. Logistic regression model showed strong correlation between one's health belief and drinking water choices (P < 0.001). Age, personal income, education, housing condition, risk perception also played important roles (P < 0.05) in the models. Drinking-water-related diarrhoea was found in all types of water and improper water hygiene behaviours still existed among residents. Conclusions: Personal health belief, housing condition, age, personal income, education, taste and if worm ever founded in tap water affected domestic drinking water choices in Shanghai.
The self-interference problem of linear frequency modulated continuous wave (LFMCW) radar is a known issue that limits the radar's detection range. Analog adaptive interference cancellation (AIC) technique is effective to mitigate the self-interference problem. However, we find that the phase difference between the error signal and reference signal paths may significantly deteriorate the stability of the AIC system. Therefore, in this paper, we analyze the effect of phase difference on systemdoi:10.2528/pierc19071203 fatcat:gncysmlinzhi3atyhtdtpmd3e4
more »... ability through the mathematical modeling and simulation. We find that the system is stable when the phase difference is between −90 and 90 degrees, and diverges when it is between 90 and 270 degrees. Therefore, to avoid system instability, we propose to add a phase shifter in the reference signal path to compensate the phase difference. The experiment results show that compared with the traditional delay-based compensation method, our phase compensation based method can increase interference cancellation ratio (ICR) by 15 dB for a single-antenna system and 12 dB for a dual-antenna system.
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