936 research outputs found
Mecopoda synconfracta Liu & Heller & Wang & Yang & Wu & Liu & Zhang 2020, sp. n.
No full textMecopoda synconfracta sp. n. Liu (Figs 2 f–j; 5h; 6h) Holotype. male, CHINA: Guangxi, Baise City, Tiandong City, Suburban District, 23.6311N, 107.1258E, 2014.XI., XS WANG. Paratypes. 12 males, same data as in holotype; CHINA: 31 males, 3 females, Guangdong, Shenzhen City, Suburban District, 22.6722N 113.9738E, 2014.XI.28, T ZHANG; Hainan Island, Jianfengling Nature Reserve, 18.74N, 108.74E, 2 males, 4 females, 2014.X.22–26, C WU; 3 males [IOZ(E)1918083, 1918084, 1918078], 2007.X.15–16, RR WANG & XY ZHU; 2 females [IOZ(E)1918106, 1918114], 4–6.v.2007, CX LIU; 1 male [IOZ(E)1918125], 19.v.2009, LH DANG; 18 males, 13 females [IOZ(E)1918058-066, 1918072-076, 1918078, 1918080-082, 1918101, 1918137-139, 1918141-145, 1918147-148, 1918154], 2009.IX.23–XII.17, M LIN, T HU, Z ZHAO, J YAO & J LI; 3 males, Bawangling Nature Reserve, 2012.VIII.29, CX LIU; 2 males, Guangxi, Shaoping, 2013.VIII., YY WANG; 1 female, Yunnan, Hekou City, Nanxi, 2014. V.10, C WU. Diagnosis. The new species is distinguished from M. confracta sp. nov. by the spacing of the teeth of the stridulatory file, of which the basal teeth are gradually becoming smaller proximad (Fig. 5h). Bioacoustics (see song parameters in Table 3). For its song type, a song unit is made up of several different-amplitude subunits. One subunit consists of 2 simple syllables. The neighboring subunits are broken (Figs 2 f–i). This new species is widely distributed in southern China (including Yunnan, Guangxi, Guangdong, and Hainan). Etymology. The species name indicates its song unit consists of a series of chirps.Published as part of Liu, Chun-Xiang, Heller, Klaus-Gerhard, Wang, Xue-Song, Yang, Zhen, Wu, Chao, Liu, Fei & Zhang, Tao, 2020, Taxonomy of a katydid genus Mecopoda Serville (Orthoptera: Tettigoniidae, Mecopodinae) from East Asia, pp. 296-310 in Zootaxa 4758 (2) on page 305, DOI: 10.11646/zootaxa.4758.2.5, http://zenodo.org/record/373448
sj-xls-1-tih-10.1177_07482337221081206 – Supplemental Material for 2,2′,4,4′-Tetrabromodiphenyl ether disrupts spermatogenesis in mice by interfering with the ER-Nrf1-Tfam-mitochondria pathway
No full textSupplemental Material, sj-xls-1-tih-10.1177_07482337221081206 for 2,2′,4,4′-Tetrabromodiphenyl ether disrupts spermatogenesis in mice by interfering with the ER-Nrf1-Tfam-mitochondria pathway by Shaoping Huang, Jiangyan Xia, Xinxin Zhang, Tao Zhou, Jing Wang, Tong Liu, Siyi Xu, and Geyu Liang in Toxicology and Industrial Health</p
Generation of reactive oxygen species in cyanobacteria and green algae induced by allelochemicals of submerged macrophytes
No full textInhibition of phytoplankton by allelochemicals released by submerged macrophytes is reported to be one of the mechanisms that maintain a clear-water state in shallow lakes. In order to elucidate this mechanism, the ability of six polyphenols and two long-chain fatty acids to induce the generation of reactive oxygen species (ROS) in phytoplankton was studied using the ROS sensitive probe 2',7'- dichlorodihydrofluorescein diacetate (DCFH-DA). The results showed that only (+)-catechin (CA) and pyrogallic acid (PA) could induce ROS formation in Microcystis aeruginosa and Pseudokirchneriella subcapitata. 25mgL-1 CA caused 1.2, 1.4 and 1.8 times increase of ROS levels in M. aeruginosa at 1, 2 and 4h exposure, respectively, and, correspondingly in P. subcapitata cells, these values were 3.7, 6.2 and 7.7, respectively. PA also significantly increased the levels of intracellular ROS in P. subcapitata (P<0.01); however, significant ROS generation in M. aeruginosa was observed at only 4h exposure (P<0.01). Light enhanced ROS generation in CA treated cells, but not in the cells treated with PA. CA and PA may act as redox cyclers after uptake by test organisms and produce ROS successively. These results suggest that the oxidative stress induced by the redox cycling property of allelochemicals may be one of the important causes for the inhibitory effect of some submerged macrophytes towards undesired phytoplankton in natural aquatic ecosystems
Deletion of vitamin D receptor leads to premature emphysema/COPD by increased matrix metalloproteinases and lymphoid aggregates formation
No full textDeficiency of vitamin D is associated with accelerated decline in lung function. Vitamin D is a ligand for nuclear hormone vitamin D receptor (VDR), and upon binding it modulates various cellular functions. The level of VDR is reduced in lungs of patients with chronic obstructive pulmonary disease (COPD) which led us to hypothesize that deficiency of VDR leads to significant alterations in lung phenotype that are characteristics of COPD/emphysema associated with increased inflammatory response. We found that VDR knock-out (VDR(-/-)) mice had increased influx of inflammatory cells, phospho-acetylation of nuclear factor-kappaB (NF-κB) associated with increased proinflammatory mediators, and up-regulation of matrix metalloproteinases (MMPs) MMP-2, MMP-9, and MMP-12 in the lung. This was associated with emphysema and decline in lung function associated with lymphoid aggregates formation compared to WT mice. These findings suggest that deficiency of VDR in mouse lung can lead to an early onset of emphysema/COPD because of chronic inflammation, immune dysregulation, and lung destruction
LLB MACRO-SPIN MODELLING OF NANOGRANULAR L1o FePt HIGH ANISOTROPY THIN FILMS
No full textNew recording media and recording methods are required if magnetic data storage is to continue the historic growth seen in the areal density, beyond the level currently imposed by the superparamagnetic limit. High anisotropy nano-granular L1o FePt thin films are currently being studied as a proposed material capable of continuing the exponential growth in areal density. FePt is so successful at maintaining a permanent magnetisation, that no applicable
magnetic field is capable of reversing the magnetisation, as in the recording process. Heat assisted magnetic recording is a proposed method of lowering the anisotropy, of the high anisotropy recording media, to a level that can be recorded in. In this thesis a nano-granular high anisotropy FePt thin film is modelled using the newly developed Landau-Lifshit-Bloch equation (to model the dynamic motion if the magnetisation) combined with a voronoi construction. The HAMR process is described over a range of maximum temperatures and modelled thin films of increasing anisotropy. It is shown that a 12000Oe applied field and a maximum temperature of Tc are required to reverse the magnetisation to the desired level. The model is used to demonstrate the lowering of the anisotropy field at elevated temperatures, allowing relatively low applied fields to set the magnetisation. The LLB equation also recovers the newly discovered fast acting linear reversal mode, at temperatures close to the Curie point
Anomalous optical and electronic properties of dense sodium
No full textBased on the density functional theory, we systematically study the optical and electronic properties of the insulating dense sodium phase (Na-hp4) reported recently (Ma et al., 2009). The structure is found optically anisotropic. Through Bader analysis, we conclude that ionicity exists in the structure and becomes stronger with increasing pressure
Periodic solutions for the 1-dimensional p-Laplacian equation
No full textAbstractExistence of infinitely many periodic solutions for the 1-dimensional p-Laplacian equationddt(|dxdt|p−2dxdt)+g(x)=f(t,x) is proved by means of the Poincaré–Birkhoff fixed point theorem, where g∈C(R,R) and is p-sublinear at the origin in the senselim|x|→0g(x)|x|p−2x=+∞ and f∈C(R×R,R) is 1-periodic in the time t, and small with respect to g
Multiple solutions to asymmetric semilinear elliptic problems via Morse theory
No full textIn this article we study the existence of solutions to the problem
\displylines{
-\Delta u = g(x,u) \quad \text{in } \Omega; \cr
u = 0 \quad\text{on } \partial\Omega,
}
where is a smooth bounded domain in
and is a differentiable
function with g(x,0)=0 for all . By using minimax methods
and Morse theory, we prove the existence of at least three nontrivial
solutions for the case in which an asymmetric condition on the nonlinearity
g is assumed. The first two nontrivial solutions are obtained by
employing a cutoff technique used by Chang et al in [9].
For the existence of the third nontrivial solution, first we compute the
critical group at infinity of the associated functional by using a technique
used by Liu and Shaoping in [19]. The final result is obtained by
using a standard argument involving the Morse relation
Functional Requirements for Bibliographic Records: Final Report
No full textThe purpose of this study is to delineate in clearly defined terms the functions performed by the bibliographic record with respect to various media, various applications, and various user needs. The study is to cover the full range of functions for the bibliographic record in its widest sense- i.e., a record that encompasses not only descriptive elements, but access points (name, title, subject, etc.), other "organizing" elements (classification, etc.), and annotations
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