bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methanolobus
Authors: Lai Mei‐Chin 
Published: June 2019

AbstractMe.tha.no.lo'bus. N.L. neut. n.methanummethane; Gr. masc. n.loboslobe; N.L. masc. n.Methanolobusmethane (‐producing) lobe.Euryarchaeota / Methanosarcinales / Methanosarcinales / Methanosarcinaceae / MethanolobusSpecies of the genusMethanolobusare strictly anaerobic methane‐producing archaea. Cells are irregular cocci, 0.5–1.5 µm in diameter, sometimes forming loose aggregates, and stain Gram‐negative. Cells are surrounded by a unit membrane and a protein surface layer. Flagella, when present, are monotrichous forMethanolobus tindarius, polar for “Methanolobus psychrophilus,” and multiple forMethanolobus profundi. Optimum temperature, 37°C; maximum, 40–50°C; minimum, 10–15°C; temperature range maximum, 25–50°C; minimum, 0–30°C. pH range, 5.5–9.4. Salt (NaCl) range, 0–2.0 M. The catabolic substrates are methanol, methylamine, dimethylamine, trimethylamine, and dimethylsulfide. No growth on H2/CO2, formate, acetate, or alcohols other than methanol. A member of the familyMethanosarcinaceaeand orderMethanosarcinales.DNA G + C content (mol%): 39.0–48.3 (Tm).Type species:Methanolobus tindariusKönig and Stetter 1983, 439VP(Effective publication: König and Stetter 1982, 488).
Jeotgalibaca
Authors: Vela Ana Isabel , Fernández‐Garayábal José F. 
Published: June 2019

AbstractJe.ot.ga.li.ba′ca. N.L. neut. n.jeotgalum(from Korean n.jeotgal), traditional Korean food; L. fem. n.bacaa grain or berry, and in bacteriology a coccus; N.L. fem. n.Jeotgalibaca, coccus from jeotgal.Firmicutes / Bacilli / Bacillales / Carnobacteriaceae / JeotgalibacaGram‐positive cocci.Oxidase‐ and catalase‐negative. Cells occur in tetrads, sarcinae, or irregular conglomerates.Non‐spore‐forming. Nonmotile. Facultative anaerobe. Chemoheterotrophic.Peptidoglycan type A4α. Major fatty acids are C16 : 0and C18 : 1ω9c. Polar lipids include phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, and several unidentified glycolipids, aminolipids, and phospholipids. Members of the familyCarnobacteriaceae, orderLactobacillales, classBacilli, phylumFirmicutes. Known habitats areseujeot(traditional Korean food) and joint of pigs. The full range of habitat is not known.DNA G + C content (in silico mol%): 37.5–38.3.Type species:Jeotgalibaca dankookensisLee, Trujillo, Kang and Ahn 2014, 1734VP.
S
ulfuricella
Authors: Watanabe Tomohiro , Kojima Hisaya 
Published: June 2019

Abstract

Sul.fu.ri.cel'la. L. neut. n.
sulfur
sulfur; L. fem. n.
cella
a small room and in biology, a cell; N.L. fem. n.
Sulfuricella
sulfur‐oxidizing cell.

Proteobacteria / Betaproteobacteria / Sulfuricellales / Sulfuricellaceae / Sulfuricella

Gram‐negative, facultatively anaerobic, straight rods. Motile. Non‐spore‐forming. Kanamycin‐ and ampicillin‐sensitive. Catalase‐negative and oxidase‐positive. Capable of anaerobic growth on nitrate and nitrous oxide as an electron acceptor. Nitrate is reduced to dinitrogen via periplasmic nitrate reductase, nitrite reductase, nitric oxide reductase, and nitrous oxide reductase. Autotrophic growth on thiosulfate and elemental sulfur as an electron donor. The end product of sulfur oxidation is sulfate. The oxidation of thiosulfate to sulfate is catalyzed by multiple proteins, that is, sulfur‐oxidizing enzymes (SoxXYZAB), dissimilatory sulfite reductase (DsrABEFHCMKJOP), adenylylsulfate reductase (AprBA), sulfite‐oxidizing enzymes (SoeABC), and ATP sulfurylase (Sat). Require thiosulfate as a sulfur source for growth. Carbon dioxide is fixed via the Calvin–Benson–Bassham cycle. Neutrophilic, growing optimally between pH 7.5 and 8.0. Grow at temperatures between 0 and 28°C. Prefer low salt content media. The major fatty acid is C
16:1
ω7
c
and/or C
16:1
ω6
c
. Typically found in soils, aquifers, freshwater lakes, and drinking water distribution system.

DNA G + C content (mol%)
: 56.1.

Type species
:
Sulfuricella denitrificans
Kojima and Fukui 2010, 2865
VP
.
U
mboniibacter
Authors: Romanenko Lyudmila A. 
Published: June 2019

Abstract

Um.bo.ni.i.bac'ter. N.L. neut. n.
Umbonium
, scientific name of a genus of marine mollusk; N.L. masc. n.
bacter
, rod; N.L. masc. n.
Umboniibacter
, a rod isolated from
Umbonium costatum
.

Proteobacteria / Gammaproteobacteria / Cellvibrionales / Cellvibrionaceae / Umboniibacter

Gram‐negative, aerobic, oxidase‐positive, catalase‐positive, or catalase‐weakly positive, rod‐shaped bacteria. Chemoorganoheterotrophic. Sodium ions are essential for growth. The predominant isoprenoid quinone is Q‐7. The major polar lipids include phosphatidylethanolamine, phosphatidylglycerol, and diphosphatidylglycerol. The minor polar lipid components are an unidentified aminolipid, two unidentified phospholipids, three unidentified aminophospholipids, and four unidentified lipids. The major fatty acids are C
17:1
ω6
c
, C
17:0
, C
16:0
, C
16:1
ω7
c
, and C
13:0
. The known habitat is the marine environment.
Umboniibacter
is a genus in the phylum
Proteobacteria
, family
Cellvibrionaceae
, order
Cellvibrionales
, class
Gammaproteobacteria
.

DNA G + C content (mol%)
: 48.9–51.7 (
T
m
, HPLC).

Type species
:
Umboniibacter marinipuniceus
Romanenko, Tanaka and Frolova 2010, 607
VP
.
State estimation for bilinear systems through minimizing the covariance matrix of the state estimation errors
Authors: Zhang Xiao , Ding Feng , Yang Erfu 
Published: June 2019

SummaryThis paper considers the state estimation problem of bilinear systems in the presence of disturbances. The standard Kalman filter is recognized as the best state estimator for linear systems, but it is not applicable for bilinear systems. It is well known that the extended Kalman filter (EKF) is proposed based on the Taylor expansion to linearize the nonlinear model. In this paper, we show that the EKF method is not suitable for bilinear systems because the linearization method for bilinear systems cannot describe the behavior of the considered system. Therefore, this paper proposes a state filtering method for the single‐input–single‐output bilinear systems by minimizing the covariance matrix of the state estimation errors. Moreover, the state estimation algorithm is extended to multiple‐input–multiple‐output bilinear systems. The performance analysis indicates that the state estimates can track the true states. Finally, the numerical examples illustrate the specific performance of the proposed method.
Spontaneously Regenerative Tough Hydrogels
Authors: Qu Gang , Li Yang , Yu Yafeng , Huang Yuxing , Zhang Wei , Zhang Han , Liu Zhou , Kong Tiantian 
Published: June 2019

AbstractSponges, Neofibularia nolitangere, can regenerate spontaneously after being broken down into small pieces, and the regenerated structure maintains the original appearance and function. Synthetic materials with such capabilities are highly desired but hardly achieved. Presented here is a sponge‐inspired self‐regenerative powder from a double‐network (DN) tough hydrogel. Hydrogels are regenerated from their powder form, by addition of water, with preservation of the original appearance and mechanical properties. The powder‐hydrogel‐powder cycle can be repeated multiple times with little loss in mechanical properties, analogous to the regeneration of sponges. These DN hydrogels can be conveniently stored and easily shaped upon regeneration. This work may have implications in the development of regenerative materials for coatings and adhesives.
Dinitrogen‐Molybdenum Complex Induces Dinitrogen Cleavage by One‐Electron Oxidation
Authors: Katayama Akira , Ohta Takehiro , Wasada‐Tsutsui Yuko , Inomata Tomohiko , Ozawa Tomohiro , Ogura Takashi , Masuda Hideki 
Published: June 2019

AbstractReported here is the N2cleavage of a one‐electron oxidation reaction usingtrans‐[Mo(depe)2(N2)2] (1) (depe=Et2PCH2CH2PEt2), which is a classical molybdenum(0)‐dinitrogen complex supported by two bidentate phosphine ligands. The molybdenum(IV) terminal nitride complex [Mo(depe)2N][BArf4] (2) (BArf4=B(3,5‐(CF3)2C6H3)4) is synthesized by the one‐electron oxidation of1upon addition of a mild oxidant, [Cp2Fe][BArf4] (Cp=C5H5), and proceeds by N2cleavage from a MoII‐N=N‐MoIIstructure. In addition, the electrochemical oxidation reaction for1also cleaved the N2ligand to give2. The dimeric Mo complex with a bridging N2is detected by in situ resonance Raman and in situ UV‐vis spectroscopies during the electrochemical oxidation reaction for1. Density‐functional theory (DFT) calculations reveal that the unstable monomeric oxidized MoIspecies is converted into2via the dimeric structure involving a zigzag transition state.
Study of the chemical structure and their nematicidal activity of N2O2 tetradentate Schiff base metal complexes
Authors: Abd El‐Hamid S.M. , Sadeek S.A. , Abd El‐Lattif N.S. 
Published: June 2019

Coordination compounds of Cu (II), Y (III), Zr (IV) and La (III) with the tetradentate Schiff base (H2L) obtained through the condensation of p‐phenylenediamine with salicylaldehyde under reflux conditions. The complexes were characterized by elemental analysis, magnetic susceptibility, molar conductance and also, with various spectroscopic techniques such as 1H NMR, UV–Vis., IR and XRD techniques. Electrolytic nature of complexes was ascertained by molar conductance values. In these four complexes, the ligand chelates act in a tetradentate manner via azomethine nitrogen and oxygen atoms of phenolic groups. Electronic spectroscopic data are in agreement with an octahedral geometrical structure. Thermal degradation analyses in nitrogen gas were used to investigate the number and location of water molecules. The chemical formulae of metal complexes were confirmed by microanalytical data. The activation thermodynamic parameters, such as, E*, ΔH*, ΔS* and ΔG* were calculated from the DTG curves using Coats Redfern (CR) and Horowitz–Metzeger (HM) methods at n = 1 or n ≠ 1. Nematicidal activities indicate that the ligand exhibit greater activity when compared to its complexes. In addition metal complexes displayed good moderate nematicidal activities.
The Effect of Branched‐Chain Fatty Acid Alkyl Esters on the Cold‐Flow Properties of Biodiesel
Authors: Dunn Robert O. , Wyatt Victor T. , Wagner Karen , Ngo Helen , Hums Megan E. 
Published: June 2019

AbstractBiodiesel (fatty acid methyl esters [FAME]) is produced from various fats, oils, and greases (FOG) using catalytic transesterification with methanol. These fuels have poor cold‐flow properties depending on the fatty acid (FA) composition of the parent FOG. Improving the cold‐flow properties of biodiesel will enhance its prospects for use during cooler months in moderate temperature climates. This work is a study on the use of skeletally branched‐chain alkyl esters (BCAE) composed of the isopropyl, n‐butyl, and 2‐ethylhexyl esters of iso‐oleic acid isomers (iPr‐iOL, nBu‐iOL, and 2EH‐iOL). These BCAE additives were tested in blends with linear‐FAME (L‐FAME) derived from soybean oil (SME), lard (LME), tallow (TME), and sewage scum grease (SGME). Binary L‐FAME/SME admixtures were also studied. Admixtures were tested for the effects of the additives on cloud point (CP), pour point (PP), and kinematic viscosities at standard (ν40 = 40 °C) and low temperatures (TL) = CP + 5 °C (νL). Although the BCAE additives were more effective than SME, relatively large additive concentrations (yAdd) were needed to depress CP and PP by more than 2 °C. Admixtures with high concentrations of BCAE additive had ν40 > 6.0 mm2 s−1, the maximum limit in ASTM fuel specification D 6751. While the iPr‐iOL and nBu‐iOL additives may be blended at concentrations up to yAdd = 0.50, 2EH‐iOL should not exceed yAdd = 0.28 in LME, 0.31 in SGME, 0.35 in TME, or 0.41 in SME to avoid driving the admixture out of specification. Some anomalies observed in the results at low yAdd for SGME/BCAE admixtures were speculated to have been affected by the low‐temperature rheology of SGME.
Conformation and cooperative order‐disorder transition in aqueous solutions of β‐1,3‐d‐glucan with different degree of branching varied by the Smith degradation
Authors: Yoshiba Kazuto , Saheki Toshihiko , Christensen Bjørn E. , Dobashi Toshiaki 
Published: June 2019

Abstractβ‐1,3‐d‐glucan with different degrees of branching were obtained by selectively and gradually removing side chains from schizophyllan, a water‐soluble triple helical polysaccharide, using the Smith degradation. Size exclusion chromatography combined with a multi‐angle light scattering detection was performed in aqueous 0.1 M NaCl. The degree of branching decreased after the Smith degradation, while the molar mass distributions were almost unchanged. The molecular conformation of the Smith‐degraded β‐1,3‐d‐glucan was analyzed on the basis of the molar mass dependency of the radius gyration, and found to be comparable to the original triple helix of schizophyllan. Differential scanning calorimetry in deuterium oxide–hexadeuterodimethylsulfoxide mixtures was performed to investigate the effects of the degree of branching on the cooperative order‐disorder transition. Removal of side chains affects both the transition temperature and transition enthalpy. The ordered structure is formed by the residual side chains in the triplex unit, so that the linear cooperative system of the triplex is maintained after the Smith degradation.
Screwing assembly oriented interactive model segmentation in HMD VR environment
Authors: Zhu Xiaoqiang , Song Lei , Wang Nan , Zhang Ruiheng , Chen Shenshuai , Wang Xiangyang , Zhu Mengyao , You Lihua , Deng Zhigang , Jin Xiaogang 
Published: June 2019

AbstractAlthough different approaches of segmenting and assembling geometric models for 3D printing have been proposed, it is difficult to find any research studies, which investigate model segmentation and assembly in head‐mounted display (HMD) virtual reality (VR) environments for 3D printing. In this work, we propose a novel and interactive segmentation method for screwing assembly in the environments to tackle this problem. Our approach divides a large model into semantic parts with a screwing interface for repeated tight assembly. Specifically, after a user places the cutting interface, our algorithm computes the bounding box of the current part automatically for subsequent multicomponent semantic Boolean segmentations. Afterwards, the bolt is positioned with an improved K3M image thinning algorithm and is used for merging paired components with union and subtraction Boolean operations respectively. Moreover, we introduce a swept Boolean‐based rotation collision detection and location method to guarantee a collision‐free screwing assembly. Experiments show that our approach provides a new interactive multicomponent semantic segmentation tool that supports not only repeated installation and disassembly but also tight and aligned assembly.
An optimal checkpointing model with online OCI adjustment for stream processing applications
Authors: Zhuang Yuan , Wei Xiaohui , Li Hongliang , Wang Yongfang , He Xubin 
Published: June 2019

SummaryCheckpoint‐based fault‐tolerant (FT) methods have been widely used to enhance the reliability of stream processing systems, but a checkpointing process usually introduces considerable overhead. It is a critical issue to choose the optimal checkpoint interval (OCI) that maximizes the processing efficiency. Traditional OCI models consider the recovery time equals to the execution time from the last checkpoint to the failure moment. However, for stream processing jobs, the recovery time is related to reprocessing workloads, depending on the real‐time input data before a failure. A new model is needed to choose the OCI for stream processing applications. Moreover, the input data rate of a stream processing job fluctuates over time. To solve these problems, we present a novel DSPS OCI (DOCI) model in this paper. We prove that it maximizes the processing efficiency for a given time. We propose an approach to dynamically adjust the OCI for an application to accommodate the workload fluctuations. We conduct simulation experiments to verify the effectiveness of our DOCI model and the efficiency of the online OCI adjustment algorithm. Experimental results with a real‐world dataset show that DOCI achieves an improvement on system efficiency by up to 32%, compared with existing FT approaches.
Proteome Analysis Using Gel‐LC‐MS/MS
Authors: Goldman Aaron R. , Beer Lynn A. , Tang Hsin‐Yao , Hembach Peter , Zayas‐Bazan Delaine , Speicher David W. 
Published: June 2019

AbstractThis article describes processing of protein samples using 1D SDS gels prior to protease digestion for proteomics workflows that subsequently utilize reversed‐phase nanocapillary ultra‐high‐pressure liquid chromatography (LC) coupled to tandem mass spectrometry (MS/MS). The resulting LC‐MS/MS data are used to identify peptides and thereby infer proteins present in samples ranging from simple mixtures to very complex proteomes. Bottom‐up proteome studies usually involve quantitative comparisons across several or many samples. For either situation, 1D SDS gels represent a simple, widely available technique that can be used to either fractionate complex proteomes or rapidly clean up low microgram samples with minimal losses. After gel separation and staining/destaining, appropriate gel slices are excised, and in‐gel reduction, alkylation, and protease digestion are performed. Digests are then processed for LC‐MS/MS analysis. Protocols are described for either sample fractionation with high‐throughput processing of many samples or simple cleanup without fractionation. An optional strategy is to conduct in‐solution reduction and alkylation prior to running gels, which is advantageous when a large number of samples will be separated into large numbers of fractions. Optimization of trypsin digestion parameters and comparison to in‐solution protease digestion are also described. © 2019 by John Wiley & Sons, Inc.
Investigation on the Existence of Sex‐By‐Formulation Interaction in Bioequivalence Trials
Authors: González‐Rojano Esperanza , Marcotegui Julio , Ochoa Dolores , Román Manuel , Álvarez Covadonga , Gordon John , Abad‐Santos Francisco , García‐Arieta Alfredo 
Published: June 2019

The US Food and Drug Administration recommends that if a drug product is intended for use in both sexes, similar proportions should be recruited for bioequivalence (BE) studies. In contrast, in Europe, subjects can belong to either sex. Literature suggesting the existence of sex‐by‐formulation interaction (S × F) is limited to few studies. To investigate if S × F is observed, this work includes 120 BE studies. Differences larger than 20% between the ratio test/reference of women and men or statistically significant S × F occurred in 25 of 120 studies (20.8%). The prevalence is higher in small studies (36.00% vs. 16.8%). Large differences between the ratios of the sex groups are the tails of the distribution. Two studies were repeated, and the differences between the ratios of the sex groups disappeared. The 90% confidence intervals of S × F did not confirm any relevant S × F. There is no evidence to require studies in both sex groups, combined or separately.
Interparental conflict and gender moderate the prospective link between parents' perceptions of adolescents' weight and weight concerns
Authors: Hochgraf Anna K. , McHale Susan M. , Fosco Gregory M. 
Published: June 2019

AbstractObjectiveParents' comments about their adolescents' weight have been linked with adolescents' disordered eating, but we know little about the personal and contextual conditions that promote or mitigate the effects of parents' perceptions on adolescents' weight concerns. This study examined whether the prospective association between parents' perceptions of adolescents' weight and adolescents' weight concerns differed as a function of exposure to interparental conflict or adolescent gender.MethodParticipants were 386 adolescents (52% female; ages 11–18 years; predominately Caucasian/European American) from 197 families (i.e., up to two adolescents per family) and their parents. Two‐parent families with a firstborn child in 8th, 9th, or 10th grade and a secondborn child 1–4 years younger were recruited to participate in a short‐term longitudinal study of adolescent development and family relationships. Annual home interviews were conducted with adolescents and parents. Multilevel models tested whether parents' perceptions of adolescents' weight predicted adolescents' weight concerns one year later and whether interparental conflict and youth gender moderated this prospective association.ResultsA significant three‐way interaction revealed that when interparental conflict was low, increases in fathers' but not mothers' perceptions of daughters' overweight predicted increases in daughters' weight concerns the following year. In contrast, females exposed to high interparental conflict reported elevated weight concerns the following year regardless of parents' perceptions. Results for males were not significant.DiscussionFindings highlight the role of personal and family context characteristics in the development of weight concerns and the value of addressing family processes within preventive interventions for adolescent females' weight concerns.
Assessment of Sublethal Effects of Neonicotinoid Insecticides on the Life-History Traits of 2 Frog Species
Authors: Robinson S.A. , Richardson S.D. , Dalton R.L. , Maisonneuve F. , Bartlett A.J. , de Solla S.R. , Trudeau V.L. , Waltho N. 
Published: June 2019

Abstract
Neonicotinoid insecticides are used extensively in agriculture and, as a consequence, are now detectable in nearby aquatic environments. Few studies have evaluated the effects of neonicotinoids on amphibians in these aquatic environments. In the present study, we examined the effects of 2 commercial formulations of neonicotinoids (active ingredients clothianidin and thiamethoxam) on survival and life-history traits of wood frogs (Lithobates sylvaticus) and northern leopard frogs (Lithobates pipiens). We used artificial pond mesocosms to assess the effects of these neonicotinoids, at nominal concentrations of 2.5 and 250 µg/L, on amphibian larval development through metamorphosis. We found no differences between controls and neonicotinoid exposure for any of the endpoints assessed for either wood frogs or leopard frogs. The present study suggests that concentrations meeting or exceeding observed levels of clothianidin and thiamethoxam in surface waters will not directly affect metamorphosis in 2 amphibians. Environ Toxicol Chem 2019;38:1967–1977. © 2019 Her Majesty the Queen in Right of Canada. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.