bluuebunny/crossref_metadata_2025_split huggingface dataset:
What is a coalition? A systematic review of coalitions in community psychology
Authors: Lawlor Jennifer A. , Metta Kyle R. , Neal Zachary 
Published: June 2021

AbstractWhile community psychologists often work with coalitions, these entities engage in a wide range of activities and structures that are not well defined within the field. In this paper, we explore the following questions: (a) What are the characteristics of coalitions community psychologists study? (b) What are the themes in the way authors define coalitions in their work? To address these questions, we conducted a systematic review of articles about coalitions in journals serving community psychologists. Findings suggest coalitions in community psychology can be characterised by a focus on a wide variety of local level community issues and include a diverse group of stakeholders. Coalitions are defined by a focus on three types of coordination: knowledge coordination, negotiated coordination, and action coordination. These types of coordination are used to address specific problems coalitions encounter and define the goals and techniques appropriate for resolving them. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement.
Building information modeling indoor path planning: A lightweight approach for complex BIM building
Authors: Liu Xiaojun , He Changyan , Zhao Hantao , Jia Jinyuan , Liu Chang 
Published: June 2021

AbstractThe increased growth of building complexity confronts the limited device resources, especially for lightweight personal digital devices. The research of handling these complex buildings with limited resources has become a pivotal research topic. This paper explores the task of lightweight indoor path planning in complex building information modeling (BIM) buildings. Both the environment modeling and path searching are important addressed through indoor path planning with a lightweight web‐based approach. A lightweight framework is designed in which the complex indoor path planning of a whole BIM building can be simplified into many local path searching of the building's interior spaces and all the online computation is decreased within no more than two simpler ones. In addition, an automatically indoor environment modeling method is proposed to partition the BIM building into many local interior spaces, constructing their spatial relationship and local grid map in a multilayered network. In the end, a heuristics optimized A star algorithm is implemented to speed up the shortest local path searching for the case of the path ends in a narrow corner. The final experiment shows that the online computational cost can be reduced greatly and dynamically to an average of 2 s when searching for the shortest path in a complex BIM building.
Evaluation of Antioxidant, Anti‐Inflammatory and Antityrosinase Potential of Extracts from Different Aerial Parts ofRhanterium suaveolensfrom Tunisia
Authors: Chelly Sabrine , Chelly Meryam , Occhiuto Cristina , Cimino Francesco , Cristani Mariateresa , Saija Antonina , Molonia Maria Sofia , Ruberto Giuseppe , D'Angelo Valeria , Germanò Maria Paola , Siracusa Laura , Bouaziz‐Ketata Hanen , Speciale Antonio 
Published: June 2021

AbstractThe genusRhanterium(Asteraceae) is a widely distributed medicinal plant throughout western North Africa and someRhanteriumspecies are used in folk medicine. The aim of research was to investigate methanolic extracts from different parts (flowers, leaves, and stems) of TunisianRhanterium suaveolensas potential sources of bioactive products useful for healthy purposes. In particular, were analyzed the phenolic composition of these extracts and their antioxidant, anti‐inflammatory, and anti‐tyrosinase properties.The phytochemical analyses were performed using standard colorimetric procedures, HPLC‐DAD and HPLC‐DAD‐ESI‐MS. Then, several in vitro cell‐free assays have been used to estimate the antioxidant/free radical scavenging capability of the extracts. Moreover,in vitro, andin vivoanti‐melanogenesis activities of these extracts were tested, respectively, with the tyrosinase inhibition assay and the Zebrafish embryo model. Finally, the anti‐inflammatory potential of these extracts in anin vitromodel of acute intestinal inflammation in differentiated Caco‐2 cells was evaluated.TheR. suaveolensextracts under study appeared particularly rich in flavonols and hydroxycinnamic acids and all extracts appeared endowed with good antioxidant/free radical scavenging properties, being the flower extracts slightly more active than the others. Moreover,R. suaveolensflowers extract was able to inhibit in vitro tyrosinase activity and exhibited bleaching effects on the pigmentation of zebrafish embryos. Furthermore, all extracts showed good anti‐inflammatory activity in intestinal epithelial cells as demonstrated by the inhibition of TNF‐α‐induced gene expression of IL‐6 and IL‐8.R. suaveolensaerial parts may be considered as a potential source of whitening agents, as well as of agents for the treatment of disorders related to oxidative stress and inflammation.
Cutting balloon angioplasty on branch pulmonary artery stenosis in pediatric patients
Authors: Cobb Harrison , Spray Beverly , Daily Joshua , Dossey Amy , Angtuaco Michael J. 
Published: June 2021

AbstractObjectivesTo identify medium‐term results following cutting balloon angioplasty (CBA) for branch pulmonary artery stenosis (PAS) and predictors of successful intervention.BackgroundCBA has emerged as a successful alternative therapy for PAS resistant to conventional balloon angioplasty techniques but there is little information on medium and long‐term outcomes.MethodsThis is a descriptive, single center, retrospective chart review of pediatric patients who underwent CBA for PAS at Arkansas Children's Hospital between May 2005 and December 2020. We reviewed demographics, procedural specifics, and 30‐day complications.ResultsForty‐four patients underwent pulmonary artery CBA on 114 pulmonary artery segments through 126 catheterization cases, totaling 148 CBA events. Thirty‐three individual pulmonary arteries underwent repeat intervention. Average minimal luminal diameter increase from pre‐CBA to end of follow‐up was 57% (CI, 38%–75%). Absence of Tetralogy of Fallot with pulmonary atresia and major aortopulmonary collateral arteries (TOF/PA/MAPCAs) and the absence of Alagille Syndrome, Williams Syndrome, or Arterial Tortuosity Syndrome (ATS) were associated with increased odds of sustained success by 70% (CI, 0.11–0.79) and 91% (CI, 0.02–0.56), respectively. Increasing the cutting balloon diameter‐to‐minimal luminal diameter ratio by 0.5 increased odds of successful intervention by 2.37‐fold (CI, 1.7–3.3). Seven patients had 30‐day complications including one death.ConclusionsIn the longest follow‐up to date of children and adolescents who underwent CBA for branch PAS, we found that there was moderate medium‐term success. Additionally, absence of TOF/PA/MAPCAs, absence of Alagille Syndrome, Williams Syndrome, or ATS, and high cutting balloon diameter‐to‐minimal luminal diameter ratio are predictors of sustained results.
Trace miRNA Assay Based on DNA Nanostructures Formed by Hybridization Chain Reaction and Gold‐Nanoparticle Tags
Authors: Song Yan , Wang Mingyuan , Qian Qin , Xu Jun , Zhou Qungang , Lv Shujie , Miao Peng 
Published: June 2021

AbstractmicroRNAs (miRNAs), a class of endogenous non‐coding RNAs, are involved in many crucial biological processes, which have emerged as a new set of biomarkers for disease theranostics. Exploring efficient signal amplification strategy is highly desired to pursue an ultrasensitive miRNA biosensing platform. In this work, we have developed a novel electrochemical approach for the analysis of trace miRNA. Target triggered DNA assembly is performed on the surface of the electrode. Meanwhile, gold‐nanoparticle tags are integrated on the product of hybridization chain reaction, which further enhance electrochemical response towards initiator miRNA. The as‐prepared electrochemical biosensor shows good analytical performances and satisfactory practical utility. It has great potential to provide a powerful tool for the miRNA assay in biomedical fields.
Macrocyclic Complexes Derived from Four cis‐L2Pt Corners and Four Butadiynediyl Linkers; Syntheses, Electronic Structures, and Square versus Skew Rhombus Geometries
Authors: Collins Brenna K. , Clough Mastry Melissa , Ehnbom Andreas , Bhuvanesh Nattamai , Hall Michael B. , Gladysz John A. 
Published: June 2021

AbstractThe dialkyl malonate derived 1,3‐diphosphines R2C(CH2PPh2)2 (R=a, Me; b, Et; c, n‐Bu; d, n‐Dec; e, Bn; f, p‐tolCH2) are combined with (p‐tol3P)2PtCl2 or trans‐(p‐tol3P)2Pt((C≡C)2H)2 to give the chelates cis‐(R2C(CH2PPh2)2)PtCl2 (2 a–f, 94–69 %) or cis‐(R2C(CH2PPh2)2)Pt((C≡C)2H)2 (3 a–f, 97–54 %). Complexes 3 a–d are also available from 2 a–d and excess 1,3‐butadiyne in the presence of CuI (cat.) and excess HNEt2 (87–65 %). Under similar conditions, 2 and 3 react to give the title compounds [(R2C(CH2PPh2)2)[Pt(C≡C)2]4 (4 a–f; 89–14 % (64 % avg)), from which ammonium salts such as the co‐product [H2NEt2]+ Cl− are challenging to remove. Crystal structures of 4 a,b show skew rhombus as opposed to square Pt4 geometries. The NMR and IR properties of 4 a–f are similar to those of mono‐ or diplatinum model compounds. However, cyclic voltammetry gives only irreversible oxidations. As compared to mono‐platinum or Pt(C≡C)2Pt species, the UV‐visible spectra show much more intense and red‐shifted bands. Time dependent DFT calculations define the transitions and principal orbitals involved. Electrostatic potential surface maps reveal strongly negative Pt4C16 cores that likely facilitate ammonium cation binding. Analogous electronic properties of Pt3C12 and Pt5C20 homologs and selected equilibria are explored computationally.
Early Oxidative Transformations During the Biosynthesis of Terrein and Related Natural Products
Authors: Kahlert Lukas , Bernardi Darlon , Hauser Maurice , Ióca Laura P. , Berlinck Roberto G. S. , Skellam Elizabeth J. , Cox Russell J. 
Published: June 2021

AbstractThe mycotoxin terrein is derived from the C10‐precursor 6‐hydroxymellein (6‐HM) via an oxidative ring contraction. Although the corresponding biosynthetic gene cluster (BGC) has been identified, details of the enzymatic oxidative transformations are lacking. Combining heterologous expression and in vitro studies we show that the flavin‐dependent monooxygenase (FMO) TerC catalyzes the initial oxidative decarboxylation of 6‐HM. The reactive intermediate is further hydroxylated by the second FMO TerD to yield a highly oxygenated aromatic species, but further reconstitution of the pathway was hampered. A related BGC was identified in the marine‐derived Roussoella sp. DLM33 and confirmed by heterologous expression. These studies demonstrate that the biosynthetic pathways of terrein and related (polychlorinated) congeners diverge after oxidative decarboxylation of the lactone precursor that is catalyzed by a conserved FMO and further indicate that early dehydration of the side chain is an essential step.
Enhancement of kinetic rates of CO2 in aqueous solutions of piperazine and methyldiethanolamine with addition of sulfolane
Authors: Ahmed Abdelmouiz , Henni Amr , Guibadj Abdenacer , Hadjadj Ahmed 
Published: June 2021

AbstractMeasurements of kinetics rates of CO2 in aqueous solutions of methyldiethanolamine (MDEA), piperazine (PZ), and mixtures of (MDEA + PZ), (PZ + sulfolane) and (MDEA + sulfolane) were carried out using the stopped flow technique, and reported in terms of pseudo‐first‐order rate constants (k0). When possible, the second‐order reaction rate constants (k2) were regressed from the data. Experiments were performed over new concentration ranges of (10–60), (200–800), (200–800, 10–40), (10–40, 10–200), and (200–800, 10–200) mol/m3 for the above‐mentioned five systems, respectively, and at temperatures varying from (298.15–313.15 K). When sulfolane was added to the amine solution, pseudo‐first‐order rate constants in the mixed solvents were higher than in aqueous MDEA and PZ solutions at all temperatures. The kinetic rates were highest at 298.15 K and decreased at higher temperatures for aqueous (MDEA + sulfolane) solutions but increased with temperature for aqueous (PZ + sulfolane) systems. Reaction orders for both PZ and MDEA were practically one at all sulfolane concentrations and temperatures. The base catalysis mechanism was used to regress very well data for aqueous MDEA and (MDEA + sulfolane + water) and the termolecular mechanism was used for (PZ + sulfolane + water) system. Both the zwitterion and termolecular models were able to fit the experimental data for the aqueous PZ system well. Finally, the termolecular and a hybrid model based on the combination of the Zwitterion and base catalysis mechanisms were able to successfully correlate the experimental data for the mixed aqueous (MDEA + PZ) systems.
Computational modelling of the scoliotic spine: A literature review
Authors: Gould Samuele L. , Cristofolini Luca , Davico Giorgio , Viceconti Marco 
Published: June 2021

AbstractScoliosis is a deformity of the spine that in severe cases requires surgical treatment. There is still disagreement among clinicians as to what the aim of such treatment is as well as the optimal surgical technique. Numerical models can aid clinical decision‐making by estimating the outcome of a given surgical intervention. This paper provided some background information on the modelling of the healthy spine and a review of the literature on scoliotic spine models, their validation, and their application. An overview of the methods and techniques used to construct scoliotic finite element and multibody models was given as well as the boundary conditions used in the simulations. The current limitations of the models were discussed as well as how such limitations are addressed in non‐scoliotic spine models. Finally, future directions for the numerical modelling of scoliosis were addressed.
Estimating heritability in honeybees: Comparison of three major methods based on empirical and simulated datasets
Authors: Jourdan‐Pineau Hélène , Antoine Gaëlle , Galataud Julien , Delatte Hélène , Simiand Christophe , Clémencet Johanna 
Published: June 2021

AbstractThe genetic contribution to phenotypic variation (namely the heritability) affects the response to selection. In honeybee, the haplodiploid sex determination does not allow the straightforward use of classical quantitative genetics methods to estimate heritability and genetic correlation. Nevertheless, specific methods have been developed for about 40 years. In particular, sibling analyses are frequently used with three main methods: an historical model using the average colony relatedness, a half‐sib/full‐sib model, and the more recent animal model. We compared those three methods using experimental and simulated datasets to see which performs the best. Our experimental dataset is composed of 10 colonies with a total sample of 853 workers. All individuals were genotyped to reconstitute the pedigree, and phenotypic traits were measured: labial palpus and wing cubital veins lengths. We also simulated phenotypic datasets with varying levels of heritability, common environment effect, and genetic correlation between traits. The simulation approach showed that the average colony relatedness was highly biased in presence of common environment effect whereas the half‐sib/full‐sib and the animal model gave reliable estimates of heritability. The animal model provided the greatest precision in genetic correlations. Using this latter method, we found that wing vein lengths had high heritabilities whereas the palpus length had lower heritability due to larger environmental variance and/or measurement error. Finally, significant genetic correlations among measured traits indicate that they do not evolve independently.
Cooking small and large portions of “biodiversity‐soup”: Miniaturized DNA metabarcoding PCRs perform as good as large‐volume PCRs
Authors: Buchner Dominik , Beermann Arne J. , Leese Florian , Weiss Martina 
Published: June 2021

AbstractDNA metabarcoding is a powerful tool to assess arthropod diversity in environmental bulk samples such as Malaise trap, pitfall trap, or hand net samples. While comparative performance tests for different extraction protocols, primers, and Taq polymerases have been made, the effect of different PCR volumes on bulk sample metabarcoding performance is less explored. Although using small PCR volumes reduces overall costs, they may lead to decreased taxon recovery or higher replicate variability due to increased pipetting imprecision, PCR stochasticity (PCR drift), or inhibition when using high amounts of template community DNA. We here performed a simple DNA metabarcoding experiment to test if species detection and the consistency of technical replicates decrease with decreasing PCR volume in standard reaction tubes. We used a mock community sample consisting of different amounts of DNA from 35 arthropod species, and a Malaise trap sample composed of many thousand insect specimens. PCR volumes tested were 5, 10, 15, 20, 25, and 50 µl. Both samples were replicated 14 times in the first PCR step with two technical replicates each in the second PCR step. Our data show that small PCR volumes did neither have systematically lower species detection or richness values, nor lower consistency between PCR replicates. We therefore recommend low volumes primarily depending on handling constraints. Further, we emphasize the importance of sequencing depth for taxon recovery.
Behaviors associated with vocal communication of squirrels
Authors: Diggins Corinne A. 
Published: June 2021

AbstractVocal communication is an important method squirrels (Sciuridae) use to transfer information from one individual to others. While behaviors associated with vocal communication have been explored in individual species or single call‐types in specific groups of squirrels, no comprehensive review of these behaviors exists for Sciuridae. Herein, I review the current literature to describe behaviors associated with vocal communication in three groups of squirrels: ground squirrels, tree squirrels, and flying squirrels. I discuss the behavioral functions of squirrel vocalizations. A wide variety of behaviors are associated with particular call‐types produced by squirrels, including alarm, agonistic, discomfort, affiliative, mating, and neonatal calls. There are large knowledge gaps in cataloging the vocal repertoires and associated behaviors of many species of squirrels, including commonly studied species such as marmots and ground squirrels, as alarm calls are typically focused on and other call‐types are understudied or ignored. Since vocal communication is important to the development, reproduction, and survival of squirrels, further understanding the biological and ecological drivers behind vocal repertoires is critical to evaluating the ethology of this family as a whole.
Asymmetry of marine invasions across tropical oceans
Authors: Torchin Mark E. , Freestone Amy L. , McCann Linda , Larson Kristen , SchlÖder Carmen , Steves Brian P. , Fofonoff Paul , Repetto Michele F. , Ruiz Gregory M. 
Published: June 2021

AbstractUnderstanding the mechanisms of spatial variation of biological invasions, across local‐to‐global scales, has been a major challenge. The importance of evolutionary history for invasion dynamics was noted by Darwin, and several studies have since considered how biodiversity of source and recipient regions can influence the probability of invasions. For over a century, the Panama Canal has connected water bodies and biotas with different evolutionary histories, and created a global shipping hot spot, providing unique opportunities to test mechanisms that affect invasion patterns. Here, we test for asymmetry in both the extent of invasions and predation effects, a possible mechanism of biotic resistance, between two tropical oceans at similar latitudes. We estimated nonnative species (NNS) richness for sessile marine invertebrates, using standardized field surveys and literature synthesis, to examine whether invasions are asymmetrical, with more NNS present in the less diverse Pacific compared to the Atlantic. We also experimentally tested whether predation differentially limits the abundance and distribution of these invertebrates between oceans. In standardized surveys, observed total NNS richness was higher in the Pacific (18 NNS, 30% of all Pacific species) than the Atlantic (11 NNS, 13% of all Atlantic species). Similarly, literature‐based records also display this asymmetry between coasts. When considering only the reciprocal exchange of NNS between Atlantic and Pacific biotas, NNS exchange from Atlantic to Pacific was eightfold higher than the opposite direction, exceeding the asymmetry predicted by random exchange based simply on differences of overall diversity per region. Predation substantially reduced biomass and changed NNS composition in the Pacific, but no such effects were detected on the Atlantic coast. Specifically, some dominant NNS were particularly susceptible to predation in the Pacific, supporting the hypothesis that predation may reduce the abundance of certain NNS here. These results are consistent with predictions that high diversity in source regions, and species interactions in recipient regions, shape marine invasion patterns. Our comparisons and experiments across two tropical ocean basins, suggest that global invasion dynamics are likely driven by both ecological and evolutionary factors that shape susceptibility to and directionality of invasions across biogeographic scales.
Selective Formation of Lotus Leaf‐ and Donut‐Like Gold Nanoplates via Seeded Growth
Authors: Zhang Gongguo , Ma Yanyun , Zhao Wenjun , Zheng Yiqun 
Published: June 2021

AbstractWe report a seeded growth of gold (Au) nanoplates with two distinct morphologies, which are similar to a lotus leaf and a donut, respectively. The success of this synthesis relies on the use of flat Au nanoplates in high purity as seeds, followed by a controlled deposition. In particular, the presence of Ag+ led to the deposition of Au atoms preferentially occurred at the central part of one face of the nanoplate and thus the formation of lotus leaf‐like shape. In contrast, when Ag+ was absent, the growth mainly occurred to the edge region. Then, cold‐welding of newly‐formed branches and further diffusion of Au atoms created holes in the nanoplate, resulting in the formation of donut‐like shape. The Au nano‐lotus leaves with tunable sizes exhibited absorbance in near‐infrared region and enhanced chemical activities in electrochemical measurements. The current strategy is extended to fabricate Au−Ag nanoplates with a similar lotus leaf‐like morphology, which also exhibited strong absorbance in near‐infrared region in UV‐vis extinction spectra. The current work allows the fabrication of two‐dimensional Au‐based nanomaterials with concave shape and three‐dimensional architecture and could be potentially extended to other noble metals and alloys.