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Tianyi Li, Huixiao Kang, Xinwei Zhou, Cheolwoong Lim, Bo Yan, Vincent De Andrade, Francesco De Carlo, Likun Zhu
A synchrotron transmission X-ray microscopy tomography system with a spatial resolution of 58.2 nm at the Advanced Photon Source was employed to obtain three-dimensional morphology data of all-solid Li ion battery electrodes. The three-phase electrode was fabricated from a 47:47:6 (wt%) mixture of Li(Ni1/3 Mn1/3 Co1/3)O2 as active material, Li1.3Ti1.7Al0.3(PO4)3 as Li-ion conductor, and Super P carbon as electron conductor. The geometric analysis show that particle-based all-solid Li ion battery has serious contact interface problem which significantly impact the Li ion transport and intercalation reaction in the electrode, leading to low capacity, poor rate capability and cycle life...
May 7, 2018: ACS Applied Materials & Interfaces
Mi-Hyun Park, Jae-Ho Jung, Euna Jo, Kyung-Min Park, Ye-Seul Baek, Se-Joo Kim, Gi-Sik Min
Ciliates are a diverse species group of the Protozoa, and nuclear and mitochondrial genes have been utilized to discover new species and discriminate closely related species. The mitochondrial cytochrome c oxidase subunit 1 (CO1) gene has been used to discriminate metazoan species and has also been applied for some groups in the phylum Ciliophora. However, it is difficult to produce a universal primer as a standard barcode, because unlike metazoans, mitochondrial DNA sequences of ciliates are long and highly variable...
April 27, 2018: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
MichaËl Manuel, Albert Deler-hernÁndez, Yoandri S Megna, JiŘÍ HÁjek
The species of the genus Copelatus Erichson, 1832 occurring in the Dominican Republic are reviewed. Five species are recorded, with recent collecting data provided for four of them. Copelatus martini sp. nov., a member of the consors species group, is described and illustrated. It is compared to the apparently similar species C. guadelupensis Legros, 1948 based on morphological characters and on partial sequences of the CO1 gene. Interesting cases of intraspecific variability in the number of elytral dorsal striae in C...
March 21, 2018: Zootaxa
Trude Magnussen, Jostein KjÆrandsen, Arild Johnsen, Geir E E SØli
Only one species of the genus Allodia has been previously recorded from the Afrotropical region, Allodia (Brachycampta) flavorufa Matile, 1978. Six new species are described here, all representing the nominotypical subgenus, Allodia s.s. The new species are described from material collected in different mountainous areas in south and east Africa; A. jaschhofi sp. nov., A. karkloofensis sp. nov., A. drakensbergensis sp. nov., A. nyeriensis sp. nov., A. mazumbaiensis sp. nov. and A. keurbosensis sp. nov. The species are morphologically very similar, and can only be separated based on minor differences in wing venation and characters of the male terminalia...
April 11, 2018: Zootaxa
Xue-Ling Song, Liang Cao, E Zhang
Onychostoma brevibarba, a new cyprinid species, is described from two tributaries flowing into the Xiang Jiang (= River) of the middle Chang Jiang basin in Hunan Province, South China. The new species is morphologically similar to two Chinese congeners, O. minnanense and O. barbatulum, but differs from them in the anteromedian extension of the postlabial groove. It further differs from O. minnanense in the maxillary-barbel length, shape and body coloration, and from O. barbatulum in the number of lateral-line perforated scales and the width of the mouth opening...
April 16, 2018: Zootaxa
JesÚs A Cruz-lÓpez
Karos Goodnight Goodnight, 1944 is the most diverse genus of the family Stygnopsidae. It contains seven micro-endemic species from the Huasteca region in eastern Mexico. In this paper, the new species Karos morronei sp. nov. is described based on the morphology of adults of both sexes. The new species is from Zacualtipán de Ángeles, Hidalgo State, which represents the southernmost record for the genus. Additionally, a reanalysis of the previous morphological phylogeny of the genus using both parsimony and maximum likelihood methods is provided...
February 11, 2018: Zootaxa
Murtada D Naser, Peter J F Davie, Nathan J Waltham
A new species of freshwater crab, Austrothelphusa gilbertensis, is described from Gilbert River Catchment, north-western Queensland. It is morphologically most similar to A. wasselli Bishop, 1963, described from the eastward flowing Stewart Drainage Basin, much further to the north-east on Cape York. It differs from A. wasselli by several morphological characters including, better defined gastro-cardiac carapace grooves, cervical groove relatively deeper, postfrontal lobes more prominent and bearing striated crests, larger and fewer spots on carapace and legs, epibranchial tooth more prominent, walking legs more slender, and G1 more strongly curved...
January 2, 2018: Zootaxa
Sean Gibbs, Peter J Hundt, Andrea Nelson, Joshua P Egan, Prasert Tongnunui, Andrew M Simons
The combtooth blenny (Blenniidae) genus Omobranchus contains small, cryptobenthic fishes common to nearshore habitats throughout the Indo-West Pacific. Recent molecular systematic studies have resolved Omobranchus as monophyletic but little research has been done to resolve species-level relationships. Herein, phylogenetic analyses of one mitochondrial (CO1) and four nuclear (ENC1, myh6, sreb2, and tbr1) genes provide evidence for the monophyly of Omobranchus and support for the elongatus and banditus species group...
January 3, 2018: Zootaxa
Brittany Finucci, William T White, Jenny M Kemper, Gavin J P Naylor
An integrated taxonomic approach, combining both morphological and molecular data, was adopted to investigate the Hydrolagus lemures-ogilbyi group in the Indo-Australian region. Single mitochondrial markers (CO1 and NADH2) provided evidence supporting the separation of four distinct species in this group. However, detailed morphological data collected from specimens from across their range failed to find any consistent differences, and many features previously considered to be diagnostic were found to be variable...
January 24, 2018: Zootaxa
Hirofumi Tsukasaki, Yota Mori, Misae Otoyama, So Yubuchi, Takamasa Asano, Yoshinori Tanaka, Takahisa Ohno, Shigeo Mori, Akitoshi Hayashi, Masahiro Tatsumisago
Sulfide-based all-solid-state lithium batteries are a next-generation power source composed of the inorganic solid electrolytes which are incombustible and have high ionic conductivity. Positive electrode composites comprising LiNi1/3 Mn1/3 Co1/3 O2 (NMC) and 75Li2 S·25P2 S5 (LPS) glass electrolytes exhibit excellent charge-discharge cycle performance and are promising candidates for realizing all-solid-state batteries. The thermal stabilities of NMC-LPS composites have been investigated by transmission electron microscopy (TEM), which indicated that an exothermal reaction could be attributed to the crystallization of the LPS glass...
April 18, 2018: Scientific Reports
James Lee Crainey, Michel Abanto Marín, Túllio Romão Ribeiro da Silva, Jansen Fernandes de Medeiros, Felipe Arley Costa Pessoa, Yago Vinícius Santos, Ana Carolina Paulo Vicente, Sérgio Luiz Bessa Luz
Despite the broad distribution of M. ozzardi in Latin America and the Caribbean, there is still very little DNA sequence data available to study this neglected parasite's epidemiology. Mitochondrial DNA (mtDNA) sequences, especially the cytochrome oxidase (CO1) gene's barcoding region, have been targeted successfully for filarial diagnostics and for epidemiological, ecological and evolutionary studies. MtDNA-based studies can, however, be compromised by unrecognised mitochondrial pseudogenes, such as Numts...
April 18, 2018: Scientific Reports
Huanhuan Yang, Teng Li, Kai Dang, Wenjun Bu
BACKGROUND: Mitochondrial genome (mt-genome) data can potentially return artefactual relationships in the higher-level phylogenetic inference of insects due to the biases of accelerated substitution rates and compositional heterogeneity. Previous studies based on mt-genome data alone showed a paraphyly of Cimicomorpha (Insecta, Hemiptera) due to the positions of the families Tingidae and Reduviidae rather than the monophyly that was supported based on morphological characters, morphological and molecular combined data and large scale molecular datasets...
April 18, 2018: BMC Genomics
Qiang Chen, Wenjuan Zhang, Gregory A Solan, Tongling Liang, Wen-Hua Sun
Four examples of phenol-substituted methylene-bridged bis(imino)pyridines, CH(C6H4-4-OH){2'-(4-C6H2-2,6-R22N[double bond, length as m-dash]CMe)-6'-(2'',6''-R12C6H3N[double bond, length as m-dash]CMe)C5H3N}2 [R1 = R2 = Me L1, R1 = R2 = Et L2, R1 = Et, R2 = Me L3, R1 = iPr, R2 = Me L4], have been synthesized and fully characterized. Treatment of L1-L4 with two equivalents of cobaltous chloride affords the bimetallic complexes, [(L)Co2Cl4] (L = L1 Co1, L2 Co2, L3 Co3, L4 Co4), in good yield. The molecular structure of Co1 shows the two metal centers to be separated by a distance of 13...
April 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Joseph Bennett, Diamond Jones, Xu Huang, Robert J Hamers, Sara E Mason
The rapid increase in use of Li-ion batteries in portable electronics has created a pressing need to understand the environmental impact and long-term fate of electonic waste (e-waste) products such as heavy and/or reactive metals. The type of e-waste that we focus on here are the complex metal oxide nanomaterials that compose Li-ion battery cathodes. While in operation the complex metal oxides are in a hermetically sealed container. However, at the end of life, improper disposal can cause structural transformations such as dissolution and metal leaching, resulting in a significant exposure risk to the surrounding environment...
April 13, 2018: Environmental Science & Technology
Shengen Zhou, Zongli Hu, Fenfen Li, Xiaohui Yu, Muhammad Naeem, Yanjie Zhang, Guoping Chen
Previous studies suggest that GRAS transcription factors act as essential regulators, not only in plant growth and development but also in response to biotic and abiotic stresses. Recently, 53 GRAS proteins have been identified, but only a few of them have been functionally studied in tomato. Here, we isolated a novel GRAS transcription factor SlGRAS26, its down-regulation generated pleiotropic phenotypes, including reduced plant height with more lateral shoots, internode length, leaf size, even leaflets, accelerated flowering transition and decreased trichome number...
June 2018: Plant Science: An International Journal of Experimental Plant Biology
Chang-Chun Ding, Shao-Yi Wu, Yong-Qiang Xu, Li-Juan Zhang
The local angular distortions Δθ are theoretically studied for the various Ni3+ centers in LiAly Co1-y O2 at different Al concentration y (= 0, 0.1, 0.5 and 0.8) based on the perturbation calculations of electron paramagnetic resonance (EPR) g factors for a trigonally distorted octahedral 3d7 cluster with low spin (S=1/2). Due to the Jahn-Teller effect, the [NiO6 ]9- clusters are found to experience the local angular distortions Δθ (≈ 5 - 9°) along the C3 axis. The variation trend of Δθ with y is in accordance with that of anisotropy Δg (= g// - g⊥ )...
April 12, 2018: Magnetic Resonance in Chemistry: MRC
Pushparaj Karthika, Chithravel Vadivalagan, Durairaj Thirumurugan, Rangaswamy Ravi Kumar, Kadarkarai Murugan, Angelo Canale, Giovanni Benelli
Culex mosquitoes can act as vectors of several important diseases, including Japanese encephalitis, West Nile virus, St. Louis encephalitis and equine encephalitis. Besides the neurological sequel caused in humans, Japanese encephalitis can lead to abortion in sows and encephalitis in horses. Effective vector control and early diagnosis, along with continuous serosurveillance in animals are crucial to fight this arboviral disease. However, the success of vector control operations is linked with the fast and reliable identification of targeted species and knowledge about their biology and ecology...
April 3, 2018: Acta Tropica
Thomas Pickett, Andrew A David
OBJECTIVE: The invasive mussel, Mytilus galloprovincialis has established invasive populations across the globe and in some regions, have completely displaced native mussels through competitive exclusion. The objective of this study was to elucidate global connectivity patterns of M. galloprovincialis strictly using archived cytochrome c oxidase 1 sequence data obtained from public databases. Through exhaustive mining and the development of a systematic workflow, we compiled the most comprehensive global CO1 dataset for M...
April 3, 2018: BMC Research Notes
David W Collins, Harini V Gudiseva, Venkata R M Chavali, Benjamin Trachtman, Meera Ramakrishnan, William T Merritt Iii, Maxwell Pistilli, Rebecca A Rossi, Stephanie Blachon, Prithvi S Sankar, Eydie Miller-Ellis, Amanda Lehman, Victoria Addis, Joan M O'Brien
Purpose: We investigate the function of the V83I polymorphism (m.6150G>A, rs879053914) in the mitochondrial cytochrome c oxidase subunit 1 (MT-CO1) gene and its role in African American (AA) primary open-angle glaucoma (POAG). Methods: This study used Sanger sequencing (1339 cases, 850 controls), phenotypic characterization of Primary Open-Angle African American Glaucoma Genetics study (POAAGG) cases, a masked chart review of CO1 missense cases (V83I plus M117T, n = 29) versus wild type cases (n = 29), a yeast 2-hybrid (Y2H) cDNA library screen, and quantification of protein-protein interactions by Y2H and ELISA...
April 1, 2018: Investigative Ophthalmology & Visual Science
Carolina Lenis, Alicia Galiano, Imelda Vélez, Iván Darío Vélez, Carlos Muskus, Antonio Marcilla
Paragonimiasis is a subacute to chronic inflammatory granulomatous lung disease caused by the genus Paragonimus. In Latin America Paragonimus mexicanus Miyazaki & Ishii, 1968 is the only confirmed species to cause human infections. Paragonimus caliensis Little, 1968 is an uncommon species often regarded as a synonym of P. mexicanus. Recently, the study of two types of Paragonimus metacercariae from Costa Rica has provided new molecular and morphological evidence that P. caliensis is a separate species from P...
March 26, 2018: Acta Tropica
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