bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterization of K175 Concrete SNI Standards Using Volcanic Ash Aggregates With Variation in Composition
Authors: Abd Hakim S , Tarigan Kerista , Sembiring Timbangen , Situmorang Manihar , Sebayang Kerista , Tamba Lia Yulistika 
Published: May 2020

AbstractK175 concrete research has been carried out with two types of volcanic ash addition, namely variations of 0%, 6%, 8%, 10%, 12% (K175 concrete) and 15%, 20%, 25%, 30% (density analysis XRD). K175 concrete contributes to residential concrete. The making of K175 concrete refers to SNI 7394: 2008 with compressive strength criteria of 14.53 Mpa. The method used is Precast concrete with sheet pile type. The making of concrete K175 with the addition of cube-shaped volcanic ash with 15 cm sides consisting of cement, sand, broken stone, volcanic ash and water. After casting is done, the concrete is soaked in the tub and then removed from the soaking tub after 28 days of age dried for 24 hours. The following is the water absorption test and compressive strength test by selecting 3 samples which have the optimum compressive strength for XRD, SEM and FTIR tests to see the concrete characterization. Analysis of XRD, SEM, and FTIR are in the variation of 0%, 10% and 25% low absorption, compressive strength respectively 21.06 MPa, 21.16 MPa and 19.46 MPa. The pressure strength also fulfills the compressive strength of Portland cement type I which is 20 MPa.
Chemical and physical pressure effects in the A-site spinel antiferromagnets CoM2O4 (M = Al, Co, and Rh)
Authors: Naka T , Valenta J , Kaštil J , Míšek M , Prchal J , Sechovský V , Abe H , Nakane T , Nakayama M , Uchikoshi T 
Published: May 2020

Abstract
Magnetic phase transitions under high pressure are reported for the diamond lattice antiferromagnet Co3−xRhxO4 in the range of 0 ≤ x ≤ 2.0, which is an isostructural S = 3/2 system for the well-known frustrated antiferromagnet CoAl2O4. In the Co3−xRhxO4 system, magnetic and specific-heat measurements at ambient pressure revealed that a second-order antiferromagnetic transition occurred at the Néel temperature (T
N) which exhibits a nonmonotonic x-variation. The physical pressure variations of T
N were determined by ac-calorimetry under hydrostatic pressures up to p = 2.6 GPa for Co2RhO4 and CoRh2O4. The rates of change of T
N with pressure (i.e., the pressure coefficients), 1.93 and 1.61 K GPa−1, respectively, were comparable to those for CoAl2O4 and Co3O4, respectively. The pressure coefficients of magnetic ordering temperature for these A-site spinel compounds were considerably larger than those for other spinel and iron-garnet compounds which follow the empirical ‘10/3 law’. Simple analysis of the chemical and physical pressure coefficients of T
N revealed that T
N depended on both the lattice volume and the oxygen positional parameter u.
Tunable plasmon resonances of Ag nanoparticles obtained by photoelectric modification under room temperature
Authors: Wang Hongyan , Dong Xiaoyan , Li Caiqiong , Xiang Kangning , Wang Hongbo , Zhu Pengcheng , Zhang Haina , Dai Han , Zhao Junfeng 
Published: May 2020

Abstract
Stretched Ag nanoparticles (AgNPs) have been obtained by photoelectric modification with room temperature. Significant elongation occurs on partial AgNPs with diameters ranging from 50 to 120 nm. For AgNPs with diameters larger than 120 nm, protuberances with sizes about 10 nm have been observed after photoelectric modification. Simulations based on finite difference time domain method have been used to reveal the process of the photoelectric modification. Such morphology changes of AgNPs can be attributed to the plasmonic phase transition and electric induced migration of Ag atoms at AgNPs surfaces. Due to the stretching of AgNPs, tunable plasmon resonances in visible spectrum have been obtained. This work could provide a new technology for the metallic nanostructure modification under low temperature.
Electrochemical properties of biogenic silver nanoparticles synthesized using Hagenia abyssinica (Brace) JF. Gmel. medicinal plant leaf extract
Authors: Murthy H C Ananda , Desalegn Zeleke Tegene , Ravikumar C R , Anil Kumar M R , Nagaswarupa H P 
Published: May 2020

AbstractThe biogenic/green silver nanoparticles (g-Ag NPs) were synthesised by using the extract of indigenous medicinal plant of Ethiopia,Hagenia abyssinica (Brace) JF. Gmel.leaf extract for the first time, to investigate the synergistic effect of biomolecules towards the enhancement of electrochemical properties of NPs. The synthesized g-Ag NPs were characterized by UV-visible, UV-DRS, FT-IR, XRD, SEM, EDXA, TEM, HRTEM and SAED techniques. The maximum absorbance,λmaxwas found to be 461 nm for g-Ag NPs due to surface plasmon resonance. The energy gap, Egof NPs, was found to be 2.31 eV. FTIR spectrum confirmed the presence of bioactive compounds responsible for possible capping and stabilisation of g-Ag NPs. The XRD analysis revealed that the g-Ag NPs are highly crystalline exhibiting sharp peaks for (111), (200), (220) and (311) planes in the diffraction pattern. SEM and TEM micrographs showed differently shaped Ag particles in addition to spherical shape. The average particle size of NPs was found to be 24.08 nm using imageJ analysis. EDX analysis confirmed the presence of Ag in the g-Ag NPs. In addition, the SAED pattern of g-Ag NPs presented concentric patterns for 4 major planes of crystalline silver. The d-spacing values of 0.2428 nm, 0.2126 nm, 0.1483 nm and 0.1263 nm corresponds to d111Ag, d200Ag, d220Ag and d311Ag lattice fringes respectively. The cyclic voltammetry (CV) results suggest that g-Ag NPs possess better electrochemical properties due to its lower charge transfer resistance value of 17 Ω. EIS studies too revealed better stability of g-Ag NPs as electrode materials.
MeV irradiation of tungsten nanowires: structural modifications
Authors: Grossi Joás , Kohanoff Jorge , Bringa Eduardo M 
Published: May 2020

Abstract
In this work we use the Two Temperature Model coupled to Molecular Dynamics (TTM-MD) to study swift heavy ion irradiation of W finite nanowires. Au projectiles are considered with energies ranging from 20 to 50 MeV, which correspond to electronic stopping values less than 20 keV nm−1 in the regime where electronic stopping is larger than nuclear stopping. Nanowires with diameters much smaller than the electron mean free path are considered for two different sizes with an aspect ratio ∼3.7 between length and diameter. Nanowires display radiation-induced surface roughening, sputtering yields and the formation of point defects and di-vacancies. For the smallest size, a hole stays opened in the central part of the wire for S

e
> 12.6 keV nm−1. W nanofoams, considered as collections of connected nanowires like those simulated here, are expected to behave similarly under irradiation displaying radiation resistance for the electronic stopping range that has been considered. In fact, nanowires larger than tens of nm would be needed for defect accumulation and lack of radiation resistance.
Stereo3D: using stereo images to enrich 3D visualization
Authors: Liu Yang , Singh Vinod Kumar , Zheng Deyou 
Published: May 2020

Abstract

Summary
Visualization in 3D space is a standard but critical process for examining the complex structure of high-dimensional data. Stereoscopic imaging technology can be adopted to enhance 3D representation of many complex data, especially those consisting of points and lines. We illustrate the simple steps that are involved and strongly recommend others to implement it in designing visualization software. To facilitate its application, we created a new software that can convert a regular 3D scatterplot or network figure to a pair of stereo images.

Availability and implementation
Stereo3D is freely available as an open source R package released under an MIT license at https://github.com/bioinfoDZ/Stereo3D. Others can integrate the codes and implement the method in academic software.

Contact
deyou.zheng@einsteinmed.org

Supplementary information
Supplementary data are available at Bioinformatics online.
Phylogeography of the ‘cosmopolitan’ orb-weaverArgiope trifasciata(Araneae: Araneidae)
Authors: Abel Christoph , Schneider Jutta M , Kuntner Matjaž , Harms Danilo 
Published: May 2020

AbstractFew spider species show truly cosmopolitan distributions. Among them is the banded garden spider Argiope trifasciata, which is reported from six continents across major climatic gradients and geographical boundaries. In orb-weaver spiders, such global distributions might be a result of lively dispersal via ballooning. However, wide distributions might also be artefactual, owing to our limited understanding of species taxonomy. To test the hypothesis that A. trifasciata might be a complex of cryptic species with more limited geographical ranges, we investigated the biogeographical structure and evolutionary history of A. trifasciata through a combination of time-calibrated phylogenetic analyses (57 terminals and three genes), ancestral range reconstruction and species delimitation methods. Our results strongly suggest that A. trifasciata as currently defined is not a single species. Its populations fall into five reciprocally monophyletic clades that are genetically distinct and have evolutionary origins in the Plio-Pleistocene. These clades are confined to East Asia, temperate Australia, Hawaii, the New World and the Old World (Africa and most of the Palaearctic). Our results provide the basis for future investigation of morphological and/or ecological disparity between the populations that are likely to represent species, in addition to examinations of the attributes and dispersal modes of these species.
Mitochondrial DNA barcodes provide insight into the phylogeography and subspecies controversy in the widespread Neotropical white peacock butterfly,Anartia jatrophae(Nymphalidae: Nymphalinae)
Authors: Pfeiler Edward , Nazario-Yepiz Nestor O , Hernández-Cervantes Pablo Luis , Markow Therese Ann 
Published: May 2020

AbstractThe validity of subspecies designations in the common and wide-ranging Neotropical white peacock butterfly, Anartia jatrophae, has been debated for decades and remains an unsettled and contentious taxonomic issue among lepidopterists. Originally described by Linnaeus in the mid-18th century from specimens obtained from northern South America (Suriname), subsequent authors proposed a variety of subspecies names based on differences in adult external morphology among geographical populations. Many of these differences, however, were subsequently found to occur seasonally within populations, leading some to conclude that only a single polymorphic species should be recognized. Here, we have analysed both new and publicly available mitochondrial DNA barcodes, obtained from specimens collected from southern USA to northern Argentina, to assess whether they could provide insight into this long-standing controversy. Our molecular analyses, using a combination of character-based (nucleotide composition), population genetic and phylogenetic approaches, indicated the presence of at least four distinct genetic lineages that we suggest are distinct at the subspecies level, namely A. j. jatrophae, A. j. luteipicta, A. j. saturata and A. j. semifusca. Justification for these assignments and the proposed geographical distribution of each subspecies within the Americas are discussed.
Were Notosuchia (Pseudosuchia: Crocodylomorpha) warm-blooded? A palaeohistological analysis suggests ectothermy
Authors: Cubo Jorge , Sena Mariana V A , Aubier Paul , Houee Guillaume , Claisse Penelope , Faure-Brac Mathieu G , Allain Ronan , Andrade Rafael C L P , Sayão Juliana M , Oliveira Gustavo R 
Published: May 2020

AbstractMost Notosuchia were active terrestrial predators. A few were semi-aquatic, or were insectivorous, omnivorous or herbivorous. A question relative to their thermometabolism remains to be answered: were Notosuchia warm-blooded? Here we use quantitative bone palaeohistology to answer this question. Two variables were used as proxies to infer thermometabolism: resting metabolic rate and red blood cell dimensions. Resting metabolic rate was inferred using relative primary osteon area and osteocyte size, shape and density. Blood cell dimensions were inferred using harmonic mean canal diameter and minimum canal diameter. All inferences were performed using phylogenetic eigenvector maps. Both sets of analyses suggest that the seven species of Notosuchia sampled in this study were ectotherms. Given that extant Neosuchia (their sister group) are also ectotherms, and that archosaurs were primitively endotherms, parsimony suggests that endothermy may have been lost at the node Metasuchia (Notosuchia–Neosuchia) by the Early Jurassic. Semi-aquatic taxa such as Pepesuchus may have had thermoregulatory strategies similar to those of recent crocodylians, whereas the terrestrial taxa (Araripesuchus, Armadillosuchus, Iberosuchus, Mariliasuchus, Stratiotosuchus) may have been thermoregulators similar to active predatory varanids. Thermal inertia may have contributed to maintaining a stable temperature in large notosuchians such as Baurusuchus.
Invariant Synapse Density and Neuronal Connectivity Scaling in Primate Neocortical Evolution
Authors: Sherwood Chet C , Miller Sarah B , Karl Molly , Stimpson Cheryl D , Phillips Kimberley A , Jacobs Bob , Hof Patrick R , Raghanti Mary Ann , Smaers Jeroen B 
Published: May 2020

Abstract
Synapses are involved in the communication of information from one neuron to another. However, a systematic analysis of synapse density in the neocortex from a diversity of species is lacking, limiting what can be understood about the evolution of this fundamental aspect of brain structure. To address this, we quantified synapse density in supragranular layers II–III and infragranular layers V–VI from primary visual cortex and inferior temporal cortex in a sample of 25 species of primates, including humans. We found that synapse densities were relatively constant across these levels of the cortical visual processing hierarchy and did not significantly differ with brain mass, varying by only 1.9-fold across species. We also found that neuron densities decreased in relation to brain enlargement. Consequently, these data show that the number of synapses per neuron significantly rises as a function of brain expansion in these neocortical areas of primates. Humans displayed the highest number of synapses per neuron, but these values were generally within expectations based on brain size. The metabolic and biophysical constraints that regulate uniformity of synapse density, therefore, likely underlie a key principle of neuronal connectivity scaling in primate neocortical evolution.
Efficacy of Ceftazidime-avibactam Plus Aztreonam in Patients With Bloodstream Infections Caused by Metallo-β-lactamase–Producing Enterobacterales
Authors: Falcone Marco , Daikos George L , Tiseo Giusy , Bassoulis Dimitrios , Giordano Cesira , Galfo Valentina , Leonildi Alessandro , Tagliaferri Enrico , Barnini Simona , Sani Spartaco , Farcomeni Alessio , Ghiadoni Lorenzo , Menichetti Francesco 
Published: May 2020

AbstractBackgroundIn vitro data support the use of combination of aztreonam (ATM) with ceftazidime-avibactam (CAZ-AVI), but clinical studies are lacking. The aim of our study was to compare the outcome of patients with bloodstream infections (BSIs) due to metallo-β-lactamase (MBL)–producing Enterobacterales treated either with CAZ-AVI plus ATM or other active antibiotics (OAAs).MethodsThis was a prospective observational study including patients admitted to 3 hospitals in Italy and Greece. The primary outcome measure was 30-day all-cause mortality. Secondary outcomes were clinical failure at day 14 and length of stay after BSI diagnosis. Cox regression analysis including a propensity score (PS) for receiving CAZ-AVI + ATM was performed to evaluate primary and secondary outcomes. A PS-based matched analysis was also performed.ResultsWe enrolled 102 patients with BSI; 82 had infections caused by NDM-producing (79 Klebsiella pneumoniae and 3 Escherichia coli) and 20 by VIM-producing (14 K. pneumoniae, 5 Enterobacter species, 1 Morganella morganii) strains. The 30-day mortality rate was 19.2% in the CAZ-AVI + ATM group vs 44% in the OAA group (P = .007). The PS-adjusted analysis showed that the use of CAZ-AVI + ATM was associated with lower 30-day mortality (hazard ratio [HR], 0.37 [95% confidence interval {CI}, .13–.74]; P = .01), lower clinical failure at day 14 (HR, 0.30 [95% CI, .14–.65]; P = .002), and shorter length of stay (subdistributional HR, 0.49 [95% CI, .30–.82]; P = .007). The PS-matched analysis confirmed these findings.ConclusionsThe CAZ-AVI + ATM combination offers a therapeutic advantage compared to OAAs for patients with BSI due to MBL-producing Enterobacterales. Further studies are warranted.
Obtaining extremely large and accurate protein multiple sequence alignments from curated hierarchical alignments
Authors: Neuwald Andrew F , Lanczycki Christopher J , Hodges Theresa K , Marchler-Bauer Aron 
Published: May 2020

Abstract
For optimal performance, machine learning methods for protein sequence/structural analysis typically require as input a large multiple sequence alignment (MSA), which is often created using query-based iterative programs, such as PSI-BLAST or JackHMMER. However, because these programs align database sequences using a query sequence as a template, they may fail to detect or may tend to misalign sequences distantly related to the query. More generally, automated MSA programs often fail to align sequences correctly due to the unpredictable nature of protein evolution. Addressing this problem typically requires manual curation in the light of structural data. However, curated MSAs tend to contain too few sequences to serve as input for statistically based methods. We address these shortcomings by making publicly available a set of 252 curated hierarchical MSAs (hiMSAs), containing a total of 26 212 066 sequences, along with programs for generating from these extremely large MSAs. Each hiMSA consists of a set of hierarchically arranged MSAs representing individual subgroups within a superfamily along with template MSAs specifying how to align each subgroup MSA against MSAs higher up the hierarchy. Central to this approach is the MAPGAPS search program, which uses a hiMSA as a query to align (potentially vast numbers of) matching database sequences with accuracy comparable to that of the curated hiMSA. We illustrate this process for the exonuclease–endonuclease–phosphatase superfamily and for pleckstrin homology domains. A set of extremely large MSAs generated from the hiMSAs in this way is available as input for deep learning, big data analyses. MAPGAPS, auxiliary programs CDD2MGS, AddPhylum, PurgeMSA and ConvertMSA and links to National Center for Biotechnology Information data files are available at https://www.igs.umaryland.edu/labs/neuwald/software/mapgaps/.
Early Transmural Response Assessed Using Magnetic Resonance Imaging Could Predict Sustained Clinical Remission and Prevent Bowel Damage in Patients with Crohn’s Disease Treated with Anti-Tumour Necrosis Factor Therapy
Authors: Messadeg L , Hordonneau C , Bouguen G , Goutorbe F , Reimund J M , Goutte M , Boucher A L , Scanzi J , Reymond M , Allimant C , Dapoigny M , Pereira B , Bommelaer G , Buisson A 
Published: May 2020

Abstract

Background
Magnetic resonance imaging [MRI] is a promising tool to evaluate therapeutic efficacy in ileocolonic Crohn’s disease [CD].

Aims
We aimed to assess the feasibility of early MRI evaluation (week 12 [W12]) to predict corticosteroid-free remission [CFREM] at W52 and prevent long-term bowel damage.

Methods
All patients with active CD needing anti-tumour necrosis factor [anti-TNF] therapy were consecutively enrolled in this multicentre prospective study. MRI was performed before starting therapy, at W12 and W52. CFREM was defined as Crohn’s Disease Activity Index &lt; 150, C-reactive protein &lt; 5 mg/L and faecal calprotectin &lt; 250 µg/g, with no switch of anti-TNF agents, no bowel resection and no therapeutic intensification between W12 and W52.

Results
Among 46 patients, 22 [47.8%] achieved CFREM at W52. Anti-TNF agents were able to heal almost all CD lesions as soon as W12 [p &lt; 0.05]. Early transmural response defined as a 25% decrease of either Clermont score (odds ratio [OR] = 7.7 [1.7–34.0], p &lt; 0.001) or Magnetic Resonance Index of Activity (OR = 4.2 [1.3–13.3], p = 0.015) was predictive of CFREM at W52. Achieving at least two items on W12-MRI among ulceration healing, disappearance of enlarged lymph nodes or sclerolipomatosis, ΔADC [apparent diffusion coefficient] &gt; +10% or ΔRCE [relative contrast enhancement] &gt; −30% was associated with a likelihood of CFREM at W52 of 84.6% vs 37.5% in patients without transmural response [p &lt; 0.001]. Early transmural response could prevent bowel damage progression over time using Clermont score (hazard ratio = 0.21 [0.0–0.9]; p = 0.037).

Conclusion
Evaluation of early transmural response by MRI is feasible and is a promising end point to monitor therapeutic efficacy in patients with CD.
Neither 1G nor 2G fuel ethanol: setting the ground for a sugarcane-based biorefinery using an iSUCCELL yeast platform
Authors: Bermejo Pamela Magalí , Raghavendran Vijayendran , Gombert Andreas Karoly 
Published: May 2020

AbstractFirst-generation (1G) fuel ethanol production in sugarcane-based biorefineries is an established economic enterprise in Brazil. Second-generation (2G) fuel ethanol from lignocellulosic materials, though extensively investigated, is currently facing severe difficulties to become economically viable. Some of the challenges inherent to these processes could be resolved by efficiently separating and partially hydrolysing the cellulosic fraction of the lignocellulosic materials into the disaccharide cellobiose. Here, we propose an alternative biorefinery, where the sucrose-rich stream from the 1G process is mixed with a cellobiose-rich stream in the fermentation step. The advantages of mixing are 3-fold: (i) decreased concentrations of metabolic inhibitors that are typically produced during pretreatment and hydrolysis of lignocellulosic materials; (ii) decreased cooling times after enzymatic hydrolysis prior to fermentation; and (iii) decreased availability of free glucose for contaminating microorganisms and undesired glucose repression effects. The iSUCCELL platform will be built upon the robust Saccharomyces cerevisiae strains currently present in 1G biorefineries, which offer competitive advantage in non-aseptic environments, and into which intracellular hydrolyses of sucrose and cellobiose will be engineered. It is expected that high yields of ethanol can be achieved in a process with cell recycling, lower contamination levels and decreased antibiotic use, when compared to current 2G technologies.