HOX genes specify cell fate in the anterior-posterior axis of animal embryos. Invertebrate chordates have one cluster, but mammals four, suggesting that cluster duplication facilitated evolution vertebrate body plans. This report shows zebrafish seven hox clusters. Phylogenetic analysis and genetic mapping suggest a chromosome doubling event, probably by whole genome duplication, after divergence ray-finned lobe-finned fishes before teleost radiation. Thus, teleosts, most species-rich group...

Abstract. The concentrations and solubility of twelve trace elements in PM2.5 at Mt. Lushan, southern China, were investigated during the summer 2011 spring 2012. average mass was 55.2 ± 20.1 μg m−3 observation period. Temporal variations all including total water-soluble fractions with several dust storm spikes Al Fe observed. enrichment factor (EF) values 1 order magnitude higher for versus elements. Four major emission sources, namely nonferrous metal mining smelting (for Cr, As, Ba parts...

Abstract A comparison tool has been developed by mapping the global GPS total electron content (TEC) and large coverage of ionospheric scintillations together on geomagnetic latitude/magnetic local time coordinates. Using this tool, a between large‐scale irregularities is pursued during storm. Irregularities, such as storm enhanced density, middle‐latitude trough, polar cap patches, are clearly identified from TEC maps. At edges these irregularities, clear appeared but their behaviors were...

Accurately predicting wind power plays a vital part in site selection, large-scale grid connection, and the safe efficient operation of generation equipment. In stage data pre-processing, density-based spatial clustering applications with noise (DBSCAN) algorithm is used to identify outliers collected speed plant Shandong Province, linear regression method correct improve prediction accuracy. Considering important impact on power, average value, maximum difference change rate daily each...

Continuous zirconia fibers with a nanometer ceramic structure and tensile strength up to 2.8 GPa were fabricated by pyrolyzing polyacetylacetonatozirconium precursor through special atmosphere heat treatment. DSC‐TGA, GC‐MS, IR, SEM, TEM used study the fiber transformation mechanism during heating. Results showed that treatment could make organics in come out directly without carbonization remove them almost entirely under 400°C, obtained had few defects, good continuity, high strength.

Abstract Human oviductal cells stimulate embryo development in vitro partly by the production of embryotrophic glycoproteins. The identity these glycoproteins is not yet known mainly because samples are limited and that cultured parental cannot produce sufficient amount factors for characterization. In this study, human epithelial (OE) were immortalized HPV 16 E6/E7 open reading frame (ORF) retroviral expression. characteristics cell line (OE‐E6/E7) compared to OE. DNA was found only...

All polymer organic solar cells afford unique potentials due to the tunable chemical and electronic properties of both donors acceptors. Compared with rapid development donors, acceptors lags far behind. To seek high-performance used in cells, based on experimentally reported D-A acceptor (NDI2OD-T2)n (P1), a series novel acceptors, designated as (BDTNDI2OD-T2)n(P2), (BDTNDTI)n(P3), (BDTNDI2OD-Tz2)n(P4), (BDTNDTzI)n(P5), were designed by introduction benzodithiophene (BDT) unit nitrogen atom...

The synthesis of anode materials plays an important role in determining the production efficiency, cost, and performance lithium-ion batteries (LIBs). However, a low-cost, high-speed, scalable manufacturing process with desired structural feature for practical technology adoption remains elusive. In this study, we propose novel method called situ flash shunt-electrothermal shock (SETS) which is controllable, fast, energy-saving synthesizing metal oxide-based materials. By using example...

Planar lightwave circuits based on silicon are playing an important role in integrated optical systems. The waveguide turning mirror (IWTM) is essential component for the compactness of devices. We have designed such a with 90/spl deg/ directional change silicon-on-insulator (SOI). fabricated has very small surface roughness. loss caused by transverse tilt /spl delta//sub t/ and lateral l/ negligible theory. A 1 times/ 2 beam splitter using structure to test performance, mirrors excess less...

Poly (acridine red) modified glassy carbon electrode was used for the detection of dopamine in presence ascorbic acid a pH 7.4 phosphate buffer solutions (PBS) by cyclic voltammetry and differential pulse voltammetry. The major difficulty overlapped oxidation potential could be overcome through distinct attractive ability poly film to cationic anionic acid. results showed that anodic peak current concentration had linear relationship range 1.0×10-7 ~ 1.0×10-4 mol dm-3. limit (S/N=3) obtained...

Objectives: Alcohol abuse is a major cause of pancreatitis, which associated with death parenchymal cells. The goal this study was to explore the effects ethanol on cell pathways in pancreas. Methods: Adult male Wistar rats were fed diets using Lieber-DeCarli method. Caspase-8, caspase-3, and cathepsin B expression activity pancreas these animals as well signals that regulate their studied Western blot analysis specific assays for biochemical enzyme activity. Results: In from ethanol,...

Abstract In vitro reducing power tests of tea polyphenols (Tp), tert ‐butylhydroquinone (TBHQ), and monoglyceride citrate (MGC) revealed that, at certain concentrations, Tp + TBHQ displayed a strong reductive capacity. Moreover, 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) radical‐scavenging activity showed that was effective ( p < 0.05) in quenching DPPH radicals. The effectiveness towards the also found to be increased when their concentrations were increased. oxidation stability flaxseed oil...

The Internet of Things (IoT) is an all-encompassing system that tracks and monitors real-world activities by gathering, handling, interpreting data from IoT equipment. It has successfully been applied in several fields, particularly smart agriculture since there a high demand for high-quality foodstuffs worldwide. essential to develop new agricultural production schemes meet these demands. heterogeneity devices makes security communication. Also, are restricted terms processing, memory,...

The concrete composite material with basalt fiber as enhancing system in it has a lot of advantages ,including excellent mechanical properties , high temperature resistant, resistant to acid and alkali, low cost, environmental protection materials resistance production process. It been applied the field construction project. Damage northern environment freezing thawing on become new hot issue. In order study characteristics reinforced building process thawing, this research uses freeze-thaw...

Acceptor-π-donor-π-acceptor (A-π-D-π-A)-types of small molecules are very promising nonfullerene acceptors to overcome the drawbacks fullerene derivatives such as weak absorption ability and electronic adjustability. However, only few attempts have been made develop π-bridge units construct highly efficient in OSCs. Herein, taking reported acceptor P1 a reference, five small-structured (P2, P3, P4, P5, P6) designed via replacement unit. A combination quantum chemistry Marcus theory...

The integrin and extracellular matrix protein (ECM)-mediated adhesion invasion of the receptive maternal uterine endometrium by trophoblasts is a critical event in complex physiological process pregnancy. Although has been largely characterized mice, relevant mechanism primates remains unclear. We investigated expression patterns dynamic alterations subunits (α1, α5, α6, β1, β4) their ECM ligands, such as laminin (LN), type IV collagen (Col IV), fibronectin (FN), at maternal-fetal interface...

Abstract Using two B‐spline basis functions of degree 4 and the ionospheric scintillation data from a Global Positioning Satellite System (GPS) receiver at South Pole, we reproduced indices for periods six X‐class solar flares in 2013. These have filled gaps, they are serving as smooth replica real observations. In either event, these modeled minimizing geometrical effects between GPS satellite receiver. Six been studied during summer winter months, using produced based on observations Pole...