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A Gram-stain-negative, non-motile and ovoid bacterial strain, designated 4-2T, was isolated from oil-contaminated water whichwas collected from Xinjiang Province, north-west PR China. The 16S rRNA gene sequence analysis showed tha...
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A Gram-stain-negative, non-motile and ovoid bacterial strain, designated 4-2T, was isolated from oil-contaminated water whichwas collected from Xinjiang Province, north-west PR China. The 16S rRNA gene sequence analysis showed that strain 4-2Tbelonged to the genus Paracoccus. The species with highest similarity to strain 4-2T was Paracoccus saliphilus YIM 90738T(97.83 %), followed by ‘Paracoccus siganidrum’ M26 (97.83 %) and Paracoccus endophyticus SYSUP0003T (97.25 %). The averagenucleotide identity values between 4-2T and three type strains were 84.69, 77.88 and 74.07 %, respectively. The genomic DNAG+C content of strain 4-2T was 61.4 mol%. Chemotaxonomical characteristic results showed that the respiratory quinone wasubiquinone Q-10 and the major fatty acids were summed feature 8 (C18 : 1ω7c or C18 : 1ω6c) and C19 : 0 cyclo ω8c. The polar lipidprofile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, unidentified phospholipids, an unidentified aminolipid and an unidentified polar lipid. The predominant polyamines were putrescine, cadaverine and spermidine. Onthe basis of phenotypic, chemotaxonomic and phylogenetic inferences, strain 4-2T represents a novel species of the genusParacoccus, for which the name Paracoccus alkanivorans sp. nov. is proposed. The type strain is 4-2T (=CGMCC 1.13669T=LMG30882T).
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This study aimed to explore the correlations of promoter methylation and single-nucleotide polymorphism (SNP) of brain-derived neurotrophic factor (BDNF) with post-traumatic stress disorder (PTSD) in Li and Han nationalities in Ha...
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This study aimed to explore the correlations of promoter methylation and single-nucleotide polymorphism (SNP) of brain-derived neurotrophic factor (BDNF) with post-traumatic stress disorder (PTSD) in Li and Han nationalities in Hainan province. Depressionand anxiety-related questionnaires were performed for PTSD-related information collection and analysis, with 164 PTSD patients and 141 healthy controls included. Serum BDNF level was measured and the methylation of BDNF promoter was evaluated. The BDNF SNP genotyping was performed, after which the risk genotypes for PTSD were detected and analyzed using logistic regression analysis. Our study found that the PTSD incidence was different in Li and Han nationalities. Serum BDNF level in PTSD patients in Li nationality was obviously lower than that in patients in Han nationality, while the methylation of BDNF promoter was higher in patients in Li nationality. The G-712A rather than rs6265 genotypes presented significant difference between PTSD patients and healthy controls. Meanwhile, the patients in Li nationality with AG genotype at G-712A inclined to depression, and patients with GG genotype had a greater degree of PTSD. G 712A and promoter methylation of BDNF were independent risk factors for PTSD. Our study demonstrated that the differences of PTSD patients between Li and Han nationalities were attributed by SNP G-712A genotypes and promoter methylation of BDNF.
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The Riemann hypothesis is equivalent to the nonnegativity of a sequence of real constants , that are certain logarithmic derivatives of the Riemann xi function evaluated at unity. We re-express these constants using the theta-Lagu...
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The Riemann hypothesis is equivalent to the nonnegativity of a sequence of real constants , that are certain logarithmic derivatives of the Riemann xi function evaluated at unity. We re-express these constants using the theta-Laguerre calculus. By using integral representations, we reformulate the coefficients together with a closely related sequence . We present a decomposition of the quantities aj into superdominant and subdominant components and give an upper bound on the former and an asymptotic lower bound for the latter. Sufficient estimation of these quantities would lead to confirmation of the Riemann hypothesis.
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Aim To determine genetic polymorphisms at human leukocyte antigen (HLA)-A, -B, and -DRB1 loci in Han population of Xi’an city in China. Methods Polymerase chain reaction-based reverse line-strip sequence specific oligonucleotide...
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We appreciate the discusser, Dr. Diyaljee, for his interest and insightful comments for our study. As recommended by Dr. Diyaljee, the testing data of the three references Potyondy (1961), Han et al. (2018), and Tovar-Valencia et ...
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We appreciate the discusser, Dr. Diyaljee, for his interest and insightful comments for our study. As recommended by Dr. Diyaljee, the testing data of the three references Potyondy (1961), Han et al. (2018), and Tovar-Valencia et al. (2018) are added into the comparison of the friction angle at peak state (including the data of both internal friction angle and interface friction angle of various soils). The effects of the coefficient of uniformity C_u and the normalized surface roughness R_n on the interface friction angle are further discussed. In addition, some further demonstrations are made for the influential parameters on the soil-structure interaction.
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We investigated the role of serotonin (5-HT) in the pathogenesis of post-traumatic stress disorder (PTSD) by determining the platelet 5-HT concentrations in Li and Han patients with PTSD in Hainan Province, China. Li and Han contr...
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We investigated the role of serotonin (5-HT) in the pathogenesis of post-traumatic stress disorder (PTSD) by determining the platelet 5-HT concentrations in Li and Han patients with PTSD in Hainan Province, China. Li and Han control groups of the same sample size have no statistical differences in gender and age distribution compared to those in the PTSD groups who were also examined. The platelet 5-HT concentrations were determined by high-performance liquid chromatography. In addition, the patients and controls were evaluated by the impact of event scale-revised (IES-R). IES-R showed that the total and sub-scale scores of three factors (avoidance, intrusion, and hyperarousal) of Li patients with PTSD were significantly higher than those of Han patients with PTSD. Scores of both PTSD groups were higher than those of their respective control groups. The platelet 5-HT concentration of the Li patients with PTSD (120.56 ± 118.05 ng/109 platelets) was lower than that of the Han patients with PTSD (271.43 ± 181.66 ng/109 platelets) and that of both Li and Han control groups (338.54 ± 156.46, 350.58 ± 169.19 ng/109 platelets, respectively). Differences existed in symptoms of PTSD in terms of avoidance, intrusion, and hyperarousal in the Li and Han patients with PTSD. The diminished 5-HT activity in patients with PTSD may be relevant to biochemical changes in the brain and body. The differences in these factors between ethnic groups could be due to their customs, social status, and culture.
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The importance of interfacial shearing resistance to the design and performance of civil engineering structures under varying load conditions when their geotechnical foundation or other structural elements are in direct contact on...
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The importance of interfacial shearing resistance to the design and performance of civil engineering structures under varying load conditions when their geotechnical foundation or other structural elements are in direct contact on or within host soils has been well recognized over the years by geotechnical researchers and practitioners. The resulting soil-structure interaction that results is generally a function of the roughness of the foundation or structural elements and the characteristic features of the paniculate nature of the host soils. As a result, several research studies have been undertaken to determine the influence of the roughness and/or characteristic features of the host soils and the results published in the literature, of which the authors compiled a significant list of references.
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The Han-Li conjecture states that: Let (M, go) be an ndimensional (n >= 3) smooth compact Riemannian manifold with boundary having positive (generalized) Yamabe constant and c be any real number, then there exists a conformal metr...
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The Han-Li conjecture states that: Let (M, go) be an ndimensional (n >= 3) smooth compact Riemannian manifold with boundary having positive (generalized) Yamabe constant and c be any real number, then there exists a conformal metric of g(0) with scalar curvature 1 and boundary mean curvature c. Combining with Z.C. Han and Y.Y. Li's results, we answer this conjecture affirmatively except for the case that n >= 8, the boundary is umbilic, the Weyl tensor of M vanishes on the boundary and has an interior non-zero point. (C) 2019 Elsevier Inc. All rights reserved.
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When a car is running at high speed, the canyon wind at the bridge-tunnel junction in the mountainous area brings along the acceleration effect. The aerodynamic lateral force will cause the vehicle sideslip and unsteady steering, ...
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When a car is running at high speed, the canyon wind at the bridge-tunnel junction in the mountainous area brings along the acceleration effect. The aerodynamic lateral force will cause the vehicle sideslip and unsteady steering, which is extremely harmful to driving safety. In this paper, Xi-Han Expressway is taken as the research object to analyze the influencing factors of vehicle's lateral stability by combining the theoretical research of the finite element method, automobile aerodynamics, and speed limit with field investigation and simulation test. CarSim software is used for simulation to explore the influence of different positions of the circular curve on vehicle lateral stability. The results show that the wind level affects the tunnel exit's unfavorable section on the circular curve. The larger the wind level, the larger the proportion of the tunnel exit's unfavorable section on the circular curve. The proportions of tunnel exit's unfavorable section on the circular curve under 6-9 wind levels are 33.33%, 38.89%, 55.56%, and 66.67%, respectively. In addition, the lateral stability of vehicles under level 6-8 wind scale is the worst when the tunnel exit is located at 5 degrees position on the circular curve. The results indicate the influence of strong wind on the lateral stability of vehicles in mountainous expressway. The research can optimize the design of the highway tunnel group and provide the basic theory and method basis for the quantitative management and scientific management of the road traffic management department.
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