bluuebunny/crossref_metadata_2025 huggingface dataset:
Turning things around? From white fusion stars with Andean flavour to Andean fusion stars with white appeal
Authors: Montero-Diaz Fiorella
Published: September 2018

Popular fusion music in Peru's capital Lima has in recent years grown into a representative genre challenging existing segregation of Limeño society through interethnic and interclass interaction. Focusing on three case studies of Peruvian fusionists performing for the white upper classes, this article documents a shift in racialised notions of Andeanness and marginality among the white upper classes from 1960 to 2014, linking the changes in perception to the political and social context of those years. It examines the trajectories of Miki González (an older white fusion star who hires Andean musicians), La Sarita (an intercultural Andean rock band striving to balance the urban and the Andean) and Magaly Solier (a young Andean campesina (‘peasant’) actress and singer who hires white musicians). These case studies demonstrate how fusion music interactions contribute to re-shaping traditional cultural imaginaries, challenge racism, and project images of empowerment onto 21st century Andeans.
Geodesic X-ray tomography for piecewise constant functions on nontrapping manifolds
Authors: ILMAVIRTA JOONAS , LEHTONEN JERE , SALO MIKKO
Published: September 2018

We show that on a two-dimensional compact nontrapping manifold with strictly convex boundary, a piecewise constant function is determined by its integrals over geodesics. In higher dimensions, we obtain a similar result if the manifold satisfies a foliation condition. These theorems are based on iterating a local uniqueness result. Our proofs are elementary.
A school- and community-based intervention to promote healthy lifestyle and prevent type 2 diabetes in vulnerable families across Europe: design and implementation of the Feel4Diabetes-study
Authors: Manios Yannis , Androutsos Odysseas , Lambrinou Christina-Paulina , Cardon Greet , Lindstrom Jaana , Annemans Lieven , Mateo-Gallego Rocio , de Sabata Maria Stella , Iotova Violeta , Kivela Jemina , Martinez Remberto , Moreno Luis A , Rurik Imre , Schwarz Peter , Tankova Tsvetalina , Liatis Stavros , Makrilakis Konstantinos
Published: September 2018

Objective

To describe the design of the Feel4Diabetes-intervention and the baseline characteristics of the study sample.

Design

School- and community-based intervention with cluster-randomized design, aiming to promote healthy lifestyle and tackle obesity and obesity-related metabolic risk factors for the prevention of type 2 diabetes among families from vulnerable population groups. The intervention was implemented in 2016–2018 and included: (i) the ‘all-families’ component, provided to all children and their families via a school- and community-based intervention; and (ii) an additional component, the ‘high-risk families’ component, provided to high-risk families for diabetes as identified with a discrete manner by the FINDRISC questionnaire, which comprised seven counselling sessions (2016–2017) and a text-messaging intervention (2017–2018) delivered by trained health professionals in out-of-school settings. Although the intervention was adjusted to local needs and contextual circumstances, standardized protocols and procedures were used across all countries for the process, impact, outcome and cost-effectiveness evaluation of the intervention.

Setting

Primary schools and municipalities in six European countries.

Subjects

Families (primary-school children, their parents and grandparents) were recruited from the overall population in low/middle-income countries (Bulgaria, Hungary), from low socio-economic areas in high-income countries (Belgium, Finland) and from countries under austerity measures (Greece, Spain).

Results

The Feel4Diabetes-intervention reached 30 309 families from 236 primary schools. In total, 20 442 families were screened and 12 193 ‘all families’ and 2230 ‘high-risk families’ were measured at baseline.

Conclusions

The Feel4Diabetes-intervention is expected to provide evidence-based results and key learnings that could guide the design and scaling-up of affordable and potentially cost-effective population-based interventions for the prevention of type 2 diabetes.
Helping Geoscience Students Thrive in Graduate School
Authors: Lecher Alanna
Published: September 2018

Ten factors that help liberal arts undergraduate students succeed could also increase the odds for student success in geoscience graduate programs.
Earthquake Damage Patterns Resolve Complex Rupture Processes
Authors: Klinger Yann , Okubo Kurama , Vallage Amaury , Champenois Johann , Delorme Arthur , Rougier Esteban , Lei Zhou , Knight Earl E. , Munjiza Antonio , Satriano Claudio , Baize Stephane , Langridge Robert , Bhat Harsha S.
Published: September 2018

Fracture damage patterns around faults induced by dynamic earthquake rupture are an invaluable record to clarify the rupture process on complex fault networks. The 2016 Mw 7.8 Kaikōura earthquake in New Zealand has been reported as one of the most complex earthquakes ever documented that ruptured at least 15 crustal faults. High‐resolution optical satellite image displacement maps provide distinctive profiles of displacement across the faults and help visualize the off‐fault damage pattern. They are combined with field observation and coupled with a numerical tool that captures the dynamics of the rupture and simultaneous activation of off‐fault damage to allow the determination of the most likely rupture scenario. This study demonstrates that complex rupture processes can be explained in a rather simple way via a synergetic combination of state‐of‐the‐art observation and first principle physics‐based numerical modeling of off‐fault damage.
Proxy‐Based Assessment of Strength and Frequency of Meteotsunamis in Future Climate
Authors: Vilibić Ivica , Šepić Jadranka , Dunić Natalija , Sevault Florence , Monserrat Sebastian , Jordà Gabriel
Published: September 2018

A climate synoptic meteotsunami index has been constructed using synoptic variables for the Balearic Islands. The index allows for the very first assessment of atmospherically driven intense sea level oscillations at the tsunami timescale (<2 hr) in future climates. The index has been computed using outputs from evaluation, historical, and three scenario MED‐11_CNRM Med‐CORDEX regional atmospheric climate runs. The reliability of the index has been verified against reanalysis simulations and on documented meteotsunami events. No significant changes in the index are projected under RCP2.6 and RCP4.5 scenarios, while the yearly number of days with meteotsunamis is expected to increase by 34% under the RCP8.5 scenario by the year 2100. This increase will dominantly occur during the summer season (May–August), being contemporaneous with maximum index values. The presented results are relevant for assessment of sea level extremes worldwide, since high‐frequency sea level oscillations may contribute up to 40% of the total range.
Whistler and Electron Firehose Instability Control of Electron Distributions in and Around Dipolarizing Flux Bundles
Authors: Zhang Xu , Angelopoulos V. , Artemyev A. V. , Liu Jiang
Published: September 2018

Electromagnetic fluctuations associated with various plasma instabilities have been previously identified near dipolarization fronts in Earth's magnetotail. However, the potential effect of these fluctuations on particle distributions and energy conversion is poorly understood. The most important instabilities responsible for electron acceleration and scattering are the whistler instability and the electron firehose instability. Utilizing 10 years of Time History of Events and Macroscale Interactions during Substorms satellite observations, we explore the occurrence probability and intensity of these instabilities near dipolarization fronts, as function of electron anisotropy and plasma beta. Electron temperature anisotropies are well constrained by the marginal stability conditions of the whistler and oblique electron firehose instabilities. In fact, the observed enhancement of magnetic field fluctuations near the instability thresholds provides good evidence for the operation of these instabilities on electrons near fronts. Since the build‐up of electron anisotropy is limited by wave‐particle interactions, we conclude that such interactions are important enough to affect electron dynamics and energetics.
PARP-1-dependent RND1 transcription induced by topoisomerase I cleavage complexes confers cellular resistance to camptothecin
Authors: Mouly Laetitia , Mamouni Kenza , Gence Remi , Cristini Agnese , Cherier Julia , Castinel Adrien , Legrand Morgane , Favre Gilles , Sordet Olivier , Monferran Sylvie
Published: September 2018

RHO GTPases regulate essential functions such as the organization of the actin cytoskeleton. The classic members cycle between an active GTP-bound and an inactive GDP-bound conformation whereas atypical members are predominantly GTP-bound. Besides their well-established role, the classic RHO GTPases RHOB and RAC1, are rapidly induced and/or activated by genotoxic stress and contribute to the DNA damage response. Here we used camptothecin, a selective topoisomerase I (TOP1) inhibitor that stabilizes TOP1 cleavage complexes (TOP1cc), to search for other potential early DNA damage-inducible RHO GTPase genes. We identified that an atypical RHO GTPase, RND1, is rapidly induced by camptothecin. RND1 induction is closely associated with the presence of TOP1cc induced by camptothecin or by DNA lesions that elevate TOP1cc levels such as UV and hydrogen peroxide. We further demonstrated that camptothecin increases RND1 gene transcription and mRNA stability. Camptothecin also increases poly(ADP-ribose) polymerase 1 (PARP-1) activity, whose inhibition reduces RND1 transcription. In addition, overexpression of RND1 increases PARP-1, suggesting a cross-talk between PARP-1 and RND1. Finally, RND1 protects cells against camptothecin-induced apoptosis, and hence favors cellular resistance to camptothecin. Together, these findings highlight RND1 as an atypical RHO GTPase early induced by TOP1cc, and show that the TOP1cc-PARP-1-RND1 pathway protects cells against apoptosis induced by camptothecin.
Pkd2l1 is required for mechanoception in cerebrospinal fluid-contacting neurons and maintenance of spine curvature
Authors: Sternberg Jenna R. , Prendergast Andrew E. , Brosse Lucie , Cantaut-Belarif Yasmine , Thouvenin Olivier , Orts-Del’Immagine Adeline , Castillo Laura , Djenoune Lydia , Kurisu Shusaku , McDearmid Jonathan R. , Bardet Pierre-Luc , Boccara Claude , Okamoto Hitoshi , Delmas Patrick , Wyart Claire
Published: September 2018

Defects in cerebrospinal fluid (CSF) flow may contribute to idiopathic scoliosis. However, the mechanisms underlying detection of CSF flow in the central canal of the spinal cord are unknown. Here we demonstrate that CSF flows bidirectionally along the antero-posterior axis in the central canal of zebrafish embryos. In the cfap298tm304 mutant, reduction of cilia motility slows transport posteriorly down the central canal and abolishes spontaneous activity of CSF-contacting neurons (CSF-cNs). Loss of the sensory Pkd2l1 channel nearly abolishes CSF-cN calcium activity and single channel opening. Recording from isolated CSF-cNs in vitro, we show that CSF-cNs are mechanosensory and require Pkd2l1 to respond to pressure. Additionally, adult pkd2l1 mutant zebrafish develop an exaggerated spine curvature, reminiscent of kyphosis in humans. These results indicate that CSF-cNs are mechanosensory cells whose Pkd2l1-driven spontaneous activity reflects CSF flow in vivo. Furthermore, Pkd2l1 in CSF-cNs contributes to maintenance of natural curvature of the spine.
Paf1 and Ctr9 subcomplex formation is essential for Paf1 complex assembly and functional regulation
Authors: Xie Ying , Zheng Minying , Chu Xinlei , Chen Yue , Xu Huisha , Wang Jiawei , Zhou Hao , Long Jiafu
Published: September 2018

The evolutionarily conserved multifunctional polymerase-associated factor 1 (Paf1) complex (Paf1C), which is composed of at least five subunits (Paf1, Leo1, Ctr9, Cdc73, and Rtf1), plays vital roles in gene regulation and has connections to development and human diseases. Here, we report two structures of each of the human and yeast Ctr9/Paf1 subcomplexes, which assemble into heterodimers with very similar conformations, revealing an interface between the tetratricopeptide repeat module in Ctr9 and Paf1. The structure of the Ctr9/Paf1 subcomplex may provide mechanistic explanations for disease-associated mutations in human PAF1 and CTR9. Our study reveals that the formation of the Ctr9/Paf1 heterodimer is required for the assembly of yeast Paf1C, and is essential for yeast viability. In addition, disruption of the interaction between Paf1 and Ctr9 greatly affects the level of histone H3 methylation in vivo. Collectively, our results shed light on Paf1C assembly and functional regulation.
Macroscopic helical chirality and self-motion of hierarchical self-assemblies induced by enantiomeric small molecules
Authors: Yang Yang , Liang Jie , Pan Fei , Wang Zhen , Zhang Jianqi , Amin Kamran , Fang Jin , Zou Wenjun , Chen Yuli , Shi Xinghua , Wei Zhixiang
Published: September 2018

Transfer of molecular chirality to supramolecular chirality at nanoscale and microscale by chemical self-assembly has been studied intensively for years. However, how such molecular chirality further transfers to the macroscale along the same path remains elusive. Here we reveal how the chirality from molecular level transfers to macroscopic level via self-assembly. We assemble a macrostripe using enantiomeric camphorsulfonic acid (CSA)-doped polyaniline with hierarchical order. The stripe can twist into a single-handed helical ribbon via helical self-motion. A multi-scale chemo-mechanical model is used to elucidate the mechanism underlying its chirality transfer and induction. The molecular origin of this macroscopic helical chirality is verified. Results provide a comprehensive understanding of hierarchical chirality transfer and helical motion in self-assembled materials and even their natural analogues. The stripe exhibits disparate actuation behaviour under stimuli of enantiomeric amines and integrating such chiral perception with helical self-motion may motivate chiral biomimetic studies of smart materials.
Biologically driven DOC release from peatlands during recovery from acidification
Authors: Kang Hojeong , Kwon Min Jung , Kim Sunghyun , Lee Seunghoon , Jones Timothy G. , Johncock Anna C. , Haraguchi Akira , Freeman Chris
Published: September 2018

Peatlands store 1/3 of global soil carbon, destabilisation of which contributes much to the recent increase in DOC (dissolved organic carbon) in freshwater ecosystems. One suggested mechanism for the enhanced decomposition of peat and the releases of DOC is recovery from acidification. However, no biological role in the process has yet been identified. Here we report extracellular enzyme activities and microbial composition in peatlands of Korea, the UK, Japan and Indonesia, and find higher pH to promote phenol oxidase activities, greater abundances inActinobacteriaand fungi, and enhanced pore-water DOC concentrations. Our pH manipulation experiments also showed that increase in pH enhanced phenol oxidase activity and DOC production with greater Actinobacterial and fungal abundances. Finally, knockout or addition of phenol oxidase dramatically changed DOC and phenolic production, indicating the central role of phenol oxidase in DOC mobilisation. Our findings provide evidence to support a previously unrecognized biological mechanism through which pH increases activate phenol oxidase, accelerating the release of DOC and phenolics.
Reply to ‘Sigmoidal Acquisition Curves are Good Indicators of Conformist Transmission’
Authors: Acerbi Alberto , van Leeuwen Edwin J. C. , Haun Daniel B. M. , Tennie Claudio
Published: September 2018

In the Smaldino et al. study ‘Sigmoidal Acquisition Curves are Good Indicators of Conformist Transmission’, our original findings regarding the conditional validity of using population-level sigmoidal acquisition curves as means to evidence individual-level conformity are contested. We acknowledge the identification of useful nuances, yet conclude that our original findings remain relevant for the study of conformist learning mechanisms.

Replying to: Smaldino, P. E., Aplin, L. M. & Farine, D. R. Sigmoidal Acquisition Curves Are Good Indicators of Conformist Transmission. Sci. Rep. 8, https://doi.org/10.1038/s41598-018-30248-5 (2018).
An effective and concise device for detecting cold allodynia in mice
Authors: Ruan Yonglan , Gu Leying , Yan Jinjin , Guo Jun , Geng Xiao , Shi Hao , Yu Guang , Zhu Chan , Yang Yan , Zhou Yuan , Wang Changming , Tang Zongxiang
Published: September 2018

Detection of cold allodynia is a very important aspect in the study of pain behavior. An effective and concise device for detecting cold pain has always been the hope of many researchers. Here, an easily produced and operated cold plate device is presented for the assessment of cold allodynia in mice. The device used to detect cold allodynia has two components: a chamber consists of a cylinder for animal experiment and a cube box around the chamber for holding ice to keep temperature stable. In the testing chamber, a mouse was placed on the circular plexiglass plate steady at 4 °C above ice for five minutes. The tested mouse will lift its paw when exposed to the cold plate. The number of lifts will present animal’s response to the degree of cold stimulation. To evaluate this approach, three commonly used pain models of mice were tested: formalin test, bone cancer pain (BCP), and chronic constriction injury (CCI). As is reported in other literatures, these three pain mice models showed increased sensitivity to cold stimulation. The new device is indeed suitable for detecting cold allodynia behavior in mice. Comparisons with existing devices of detecting cold allodynia, such as the cold plate in the market (UGO, Panlab, Columbus, etc.), the new device has the advantages of low cost, simple operation and easy popularization and can detect cold allodynia behavior of mice very well. This is a very practical and economical device to detect cold allodynia behavior.
Probing Limits of Information Spread with Sequential Seeding
Authors: Jankowski Jarosław , Szymanski Boleslaw K. , Kazienko Przemysław , Michalski Radosław , Bródka Piotr
Published: September 2018

We consider here information spread which propagates with certain probability from nodes just activated to their not yet activated neighbors. Diffusion cascades can be triggered by activation of even a small set of nodes. Such activation is commonly performed in a single stage. A novel approach based on sequential seeding is analyzed here resulting in three fundamental contributions. First, we propose a coordinated execution of randomized choices to enable precise comparison of different algorithms in general. We apply it here when the newly activated nodes at each stage of spreading attempt to activate their neighbors. Then, we present a formal proof that sequential seeding delivers at least as good spread coverage as the single stage seeding does. Moreover, we also show that, under modest assumptions, sequential seeding performs provably better than the single stage seeding using the same number of seeds and node ranking. Finally, we present experimental results comparing single stage and sequential approaches on directed and undirected graphs to the well-known greedy approach to provide the objective measure of the sequential seeding benefits. Surprisingly, applying sequential seeding to a simple degree-based selection leads to higher coverage than achieved by the computationally expensive greedy approach currently considered to be the best heuristic.
Variations of cingulate sulcal organization and link with cognitive performance
Authors: Amiez Céline , Wilson Charles R E , Procyk Emmanuel
Published: September 2018

The sulcal morphology of the human medial frontal cortex has received marked interest because of (1) its remarkable link with the functional organization of this region, and (2) observations that deviations from ‘normal’ sulcal morphological variability correlate with the prevalence of some psychiatric disorders, cognitive abilities, or personality traits. Unfortunately, background studies on environmental or genetic factors influencing the ontogenesis of the sulcal organization in this region are critically lacking. We analysed the sulcal morphological organization in this region in twins and non-twin siblings, as well as in control subjects for a total of 599 subjects from the Human Connectome Project. The data first confirm significant biases in the presence of paracingulate sulci in left vs right hemispheres in the whole population (twin: p < 2.4.10−9; non-twin: p < 2.10−6) demonstrating a clear general laterality in human subjects. Second, measures of similarity between siblings and estimations of heritability suggest significant environmental factors, in particular in-womb environment, and weak additive genetic factors influencing the presence of a paracingulate sulcus. Finally, we found that relationships between sulcal organization and performance in cognitive, motor, and affective tests depend on the twin status (Twins versus Non-twins). These results provide important new insights to the issue of the significance of sulcal organization in the human medial frontal cortex.
Preconditioners for the geometry optimisation and saddle point search of molecular systems
Authors: Mones Letif , Ortner Christoph , Csányi Gábor
Published: September 2018

A class of preconditioners is introduced to enhance geometry optimisation and transition state search of molecular systems. We start from the Hessian of molecular mechanical terms, decompose it and retain only its positive definite part to construct a sparse preconditioner matrix. The construction requires only the computation of the gradient of the corresponding molecular mechanical terms that are already available in popular force field software packages. For molecular crystals, the preconditioner can be combined straightforwardly with the exponential preconditioner recently introduced for periodic systems. The efficiency is demonstrated on several systems using empirical, semiempirical and ab initio potential energy surfaces.
Aqueous mounting media increasing tissue translucence improve image quality in Structured Illumination Microscopy of thick biological specimen
Authors: Szczurek Aleksander , Contu Fabio , Hoang Agnieszka , Dobrucki Jurek , Mai Sabine
Published: September 2018

Structured Illumination Microscopy (SIM) is a super-resolution microscopy method that has significantly advanced studies of cellular structures. It relies on projection of illumination patterns onto a fluorescently labelled biological sample. The information derived from the sample is then shifted to a detectable band, and in the process of image calculation in Fourier space the resolution is doubled. Refractive index homogeneity along the optical path is crucial to maintain a highly modulated illumination pattern necessary for high-quality SIM. This applies in particular to thick samples consisting of large cells and tissues. Surprisingly, sample mounting media for SIM have not undergone a significant evolution for almost a decade. Through identification and systematic evaluation of a number of non-hazardous, water-soluble chemical components of mounting media, we demonstrate an unprecedented improvement in SIM-image quality. Mounting solutions presented in this research are capable of reducing abundant light scattering which constitutes the limiting factor in 3D-SIM imaging of large Hodgkin’s lymphoma and embryonic stem cells as well as 10 µm tissue sections. Moreover, we demonstrate usefulness of some of the media in single molecule localisation microscopy. The results presented here are of importance for standardisation of 3D-SIM data acquisition pipelines for an expanding community of users.
Coherence in defect evolution data for the ion beam irradiated graphene
Authors: Yeo Sunmog , Han Jiyoon , Bae Sukang , Lee Dong Su
Published: September 2018

The defect evolution in graphene produced by ion beam bombardment is investigated by changing the ion species, irradiation energy and dose. Raman spectroscopy is performed to examine the defect yield produced under various ion beam bombardment conditions. The defect yields of the vacancy-type defect are well described by the linear energy transfer (L) and dose (d). By increasing Ld, the defect yields exhibit similar behaviours for all ion species. As a consequence, all the defect yields can be collapsed into a single curve by multiplying them by a single parameter, suggesting that the defect evolution under various ion beam bombardment conditions can be described in a simple formula.
Wide-Field Functional Microscopy of Peripheral Nerve Injury and Regeneration
Authors: Nam Ahhyun S. , Easow Jeena M. , Chico-Calero Isabel , Villiger Martin , Welt Jonathan , Borschel Gregory H. , Winograd Jonathan M. , Randolph Mark A. , Redmond Robert W. , Vakoc Benjamin J.
Published: September 2018

Severe peripheral nerve injuries often result in partial repair and lifelong disabilities in patients. New surgical techniques and better graft tissues are being studied to accelerate regeneration and improve functional recovery. Currently, limited tools are available to provide in vivo monitoring of changes in nerve physiology such as myelination and vascularization, and this has impeded the development of new therapeutic options. We have developed a wide-field and label-free functional microscopy platform based on angiographic and vectorial birefringence methods in optical coherence tomography (OCT). By incorporating the directionality of the birefringence, which was neglected in the previously reported polarization-sensitive OCT techniques for nerve imaging, vectorial birefringence contrast reveals internal nerve microanatomy and allows for quantification of local myelination with superior sensitivity. Advanced OCT angiography is applied in parallel to image the three-dimensional vascular networks within the nerve over wide-fields. Furthermore, by combining vectorial birefringence and angiography, intraneural vessels can be discriminated from those of the surrounding tissues. The technique is used to provide longitudinal imaging of myelination and revascularization in the rodent sciatic nerve model, i.e. imaged at certain sequential time-points during regeneration. The animals were exposed to either crush or transection injuries, and in the case of transection, were repaired using an autologous nerve graft or acellular nerve allograft. Such label-free functional imaging by the platform can provide new insights into the mechanisms that limit regeneration and functional recovery, and may ultimately provide intraoperative assessment in human subjects.
Psoralen induced cell cycle arrest by modulating Wnt/β-catenin pathway in breast cancer cells
Authors: Wang Xiaohong , Xu Chengfeng , Hua Yitong , Cheng Kai , Zhang Yingzhe , Liu Jian , Han Yong , Liu Song , Zhang Guoqiang , Xu Shujian , Yang Zhenlin
Published: September 2018

Psoralen could inhibit the proliferation of human breast cancer cells, however, the molecular mechanism was unclear. We evaluated the anti-proliferative effects of psoralen by MTT, plate colony formation assay and cell cycle analysis in MCF-7 and MDA-MB-231 cells. The effects of psoralen on activation of Wnt/β-catenin and the related target genes were examined by quantitative real-time PCR, western blotting and cell immunofluorescence. The tumor growth was conducted in BALB/c nude mice and the pathological changes of heart, liver and kidney were also observed. Our results demonstrate that psoralen significantly inhibited cell proliferation by inducing G0/G1 phase arrest in MCF-7 cells and G2/M phase arrest in MDA-MB-231 cells. The expression of Fra-1 was reduced and Axin2 was promoted both in MCF-7 and MDA-MB-231 cells after psoralen treatment. The cytoplasmic accumulation and nuclear translocation of β-catenin were significantly reduced by psoralen. Psoralen increased the levels of phospho-(Y142) β-catenin, while decreased the expression of total β-catenin and its downstream target Fra-1 in vitro and vivo. Moreover, psoralen didn’t cause any significant toxicity at the effective concentration. Overall, our results might provide theoretical basis for clinical application of psoralen in breast cancer.
Copper-boryl mediated organic synthesis
Authors: Hemming David , Fritzemeier Russell , Westcott Stephen A. , Santos Webster L. , Steel Patrick G.
Published: September 2018

The diverse applications of copper-catalyzed borylation, which has become an essential strategy in modern synthetic organic chemistry, are reviewed and illustrated.
A carbon dots/rutin system for colorimetric and fluorimetric dual mode detection of Al3+ in aqueous solution
Authors: Li Chun , Zhao Jianru , Chen Yanqiu , Wang Xiaoyu , Sun Xiaobo , Pan Wei , Yu Guifeng , Yan Zun , Wang Jinping
Published: September 2018

Colorimetric and fluorimetric dual mode detection of Al3+ in aqueous solution was achieved using a carbon dots/rutin (CDs/rutin) coexisting system.
A CoOOH nanoflake-based light scattering probe for the simple and selective detection of uric acid in human serum
Authors: Mao Zhi Yuan , Zhu Lu Ning , Gao Jie , Liu Jia Jun , Wei Yin Hui , Li Xin Yu , Yin Bin Cheng , Wang Jian
Published: September 2018

In the presence of uricase, uric acid generated H2O2, which further decomposed CoOOH nanoflakes to release Co2+, resulting in smaller nanoparticles with lower light scattering. Based on the relationship between the reduced light scattering and uric acid concentration, the simple strategy was applicable to uric acid sensing in human serum samples.
Synthesis and properties of isoindigo and benzo[1,2-b:4,5-b′]bis[b]benzothiophene oligomers
Authors: Liao Hailiang , Xiao Chengyi , Ravva Mahesh Kumar , Wang Yazhou , Little Mark , Jenart Maud V. C. , Onwubiko Ada , Li Zhengke , Wang Zhaohui , Brédas Jean-Luc , McCulloch Iain , Yue Wan
Published: September 2018

A series of thienoacene-isoindigo oligomers have been synthesized from novel BBBT bislactam. Their opto-electronic and device characteristics have been investigated.
Supramolecular recognition of a CWA simulant by metal–salen complexes: the first multi-topic approach
Authors: Puglisi Roberta , Pappalardo Andrea , Gulino Antonino , Trusso Sfrazzetto Giuseppe
Published: September 2018

A new methodology to detect efficiently and selectively a CWA simulant using multi-topic receptors is reported here.
Ultrastability and color-tunability of CsPb(Br/I)3 nanocrystals in P–Si–Zn glass for white LEDs
Authors: Jiang Jutao , Shao Guangzhan , Zhang Zelong , Ding Ling , Zhang Huiling , Liu Jianming , Chen Zhaoping , Xiang Weidong , Liang Xiaojuan
Published: September 2018

A series of CsPbBrxI3−x NC glasses, showing tunable emission (523–693 nm) controlled by different ratios of Br− and I−, were successfully prepared.
Correction: Boronate based fluorescence (ESIPT) probe for peroxynitrite
Authors: Sedgwick Adam C. , Sun Xiaolong , Kim Gyoungmi , Yoon Juyoung , Bull Steven D. , James Tony D.
Published: September 2018

Correction for ‘Boronate based fluorescence (ESIPT) probe for peroxynitrite’ by Adam C. Sedgwick et al., Chem. Commun., 2016, 52, 12350–12352.
Control of the growth of electrodeposited zinc oxide on FTO glass
Authors: Ghannam Hajar , Bazin Cyrille , Chahboun Adil , Turmine Mireille
Published: September 2018

Effect of four parameters on the ZnO growth onto FTO.
The effect of graphene on surface plasmon resonance of metal nanoparticles
Authors: Nan Haiyan , Chen Zhirong , Jiang Jie , Li JiaQi , Zhao Weiwei , Ni Zhenhua , Gu Xiaofeng , Xiao Shaoqing
Published: September 2018

Two transparent graphene–metal nanoparticle (NP) hybrid schemes, namely Au NPs covered by graphene layers and Au NPs encapsulated by graphene layers, are presented and the effect of graphene on the localized surface plasmon resonance of metal NPs is systematically investigated.
Multi-scale theoretical approach to X-ray absorption spectra in disordered systems: an application to the study of Zn(ii) in water
Authors: Stellato Francesco , Calandra Matteo , D'Acapito Francesco , De Santis Emiliano , La Penna Giovanni , Rossi Giancarlo , Morante Silvia
Published: September 2018

We develop a multi-scale theoretical approach aimed at calculating from first principles X-ray absorption spectra of liquid solutions and disordered systems.
Molecular approach to prepare mixed MoW alumina supported hydrotreatment catalysts using H4SiMonW12−nO40heteropolyacids
Authors: Nikulshina M. S. , Blanchard P. , Mozhaev A. , Lancelot C. , Griboval-Constant A. , Fournier M. , Payen E. , Mentré O. , Briois V. , Nikulshin P. A. , Lamonier C.
Published: September 2018

Higher catalytic conversions and different selectivity ratios are explained by the formation of the mixed (MoW)S2active phase when using mixed MoW heteropolyacid as starting material.
Coumarin-surfactant modified polyoxometalate catalyzed cross dehydrogenative coupling of benzyl alcohol with the para-C–H of unprotected aniline
Authors: Xu Qian , Yu Gang , Liu Min , Peng Chang , Banks M. Katherine , Xu Weijian , Wu Ruoxi , Lu Yanbing
Published: September 2018

This paper presents a novel method for synthesizing para-aminobenzophenone and its derivatives (p-ABPs) using a coumarin-surfactant modified polyoxometalate as the catalyst.
Fluorescent carbon dot decorated MnO2 nanorods for complete photomineralization of phenol from water
Authors: Mehta Akansha , Mishra Amit , Basu Soumen
Published: September 2018

Using MnO2@CQDs the photocatalytic degradation of phenol was tested and under optimum operational parameters, phenol degradation efficiency was found to be ∼90% with a high rate constant R = 0.029 min−1.
Synergism between luteolin and sulforaphane in anti-inflammation
Authors: Rakariyatham Kanyasiri , Wu Xian , Tang Zhonghai , Han Yanhui , Wang Qi , Xiao Hang
Published: September 2018

Luteolin and sulforaphane are well-known food bioactives with anti-inflammatory properties. In this study, we demonstrated the synergistic interactions between luteolin and sulforaphane against lipopolysaccharide-induced inflammation in macrophages.
Screening for active constituents in Turkish galls against ulcerative colitis by mass spectrometry guided preparative chromatography strategy:in silico,in vitroandin vivostudy
Authors: Zang Jie , Ma Shangzhi , Wang Cuizhe , Guo Gang , Zhou Liangxue , Tian Xing , Lv Mengying , Zhang Jun , Han Bo
Published: September 2018

Screening for active constituents in Turkish galls against ulcerative colitis by mass spectrometry guided preparative chromatography strategy:in silico,in vitroandin vivostudy.
Zeolitic-imidazolate-framework (ZIF-8)/PEDOT:PSS composite counter electrode for low cost and efficient dye-sensitized solar cells
Authors: Ahmed Abdelaal S. A. , Xiang Wanchun , Saana Amiinu Ibrahim , Zhao Xiujian
Published: September 2018

ZIF-8 polystyrenesulfonate-doped poly(3,4-ethylenedioxythiophene) (ZIF-8/PEDOT:PSS) is prepared and used as the alternative counter electrode (CE) for dye-sensitized solar cells (DSSCs) based on I−/I3− and Co2+/Co3+ redox mediators.
Metal free MoS2 2D sheets as a peroxidase enzyme and visible-light-induced photocatalyst towards detection and reduction of Cr(vi) ions
Authors: Borthakur Priyakshree , Boruah Purna K. , Das Manash R. , Artemkina Sofya B. , Poltarak Pavel A. , Fedorov Vladimir E.
Published: September 2018

Two-dimensional molybdenum disulphide (MoS2) sheets were prepared by using a simple thermal decomposition method.
Modified surface states of NaGdF4:Yb3+/Tm3+ up-conversion nanoparticles via a post-chemical annealing process
Authors: Min Qiuhong , Zhao Lei , Qi Yushuang , Lei Jing , Chen Wenbo , Xu Xuhui , Zhou Dacheng , Qiu Jianbei , Yu Xue
Published: September 2018

An amorphous layer acting as a quenching center at the surface of oleic acid-capped NaGdF4:Yb3+/Tm3+ nanoparticles is observed directly, which can be reconstructed via a novel post-chemical annealing process.
Electrically pumped Fabry–Perot microlasers from single Ga-doped ZnO microbelt based heterostructure diodes
Authors: Li Zhanguo , Jiang Mingming , Sun Yuzhou , Zhang Zhenzhong , Li Binghui , Zhao Haifeng , Shan Chongxin , Shen Dezhen
Published: September 2018

Electrically pumped F–P mode microlasers comprising a single ZnO:Ga microbelt and p-GaN substrate have been realized.
Two-dimensional π-conjugated metal–organic nanosheets as single-atom catalysts for the hydrogen evolution reaction
Authors: Ji Yujin , Dong Huilong , Liu Cheng , Li Youyong
Published: September 2018

Two-dimensional planar metal–organic nanosheets exhibit a superior performance to Pt-based catalysts for hydrogen evolution reaction.
Stereoselective synthesis of 1,3-disubstituted dihydroisoquinolines vial-phenylalanine-derived dihydroisoquinoline N-oxides
Authors: Flores-Ferrándiz Jesús , Carter Nicholas , González-Soria Maria José , Wasinska Malgorzata , Gill Daniel , Maciá Beatriz , Caprio Vittorio
Published: September 2018

Addition of Grignard reagents and alkenes to readily available (S)-3-(hydroxymethyl)-3,4-dihydroisoquinoline-2-oxide allow the highly stereoselective synthesis of a range of 1,3-disubstituted tetrahydroisoquinolines.
Organic solvent extraction-assisted catalytic hydrothermal liquefaction of algae to bio-oil
Authors: Liu Chunze , Wufuer Anaerguli , Kong Liping , Wang Yuanyuan , Dai Liyi
Published: September 2018

MgSO4-assisted ethanol extraction combined with catalytic hydrothermal liquefaction of algae to bio-oil.
The adsorption state and the evolution of field emission properties of graphene edges at different temperatures
Authors: Jiang Lijuan , Liu Peng , Zhang Lina , Liu Changhong , Zhang Liwei , Fan Shoushan
Published: September 2018

We have studied the effects of adsorbates on the field emission (FE) properties of graphene edges at different temperatures using Joule heating.
A FRET-based fluorescent and colorimetric probe for the specific detection of picric acid
Authors: Zhang Ensheng , Ju Ping , Guo Pu , Hou Xiufang , Hou Xueyan , Lv Haiming , Wang Ji-jiang , Zhang Yuqi
Published: September 2018

A FRET-based fluorescent and colorimetric chemo-sensor has been designed and synthesized for the selective and sensitive detection of picric acid.
Retracted Article: Down-regulation of Rab10 inhibits hypoxia-induced invasion and EMT in thyroid cancer cells by targeting HIF-1α through the PI3K/Akt pathway
Authors: Zhou Zhenyu , Liu Yang , Hu Zhuang , Ma Mingde , Chang Liang
Published: September 2018

Rab10, a member of the Rab family, is localized to endocytic compartments and serves as a regulator of intracellular vesicle trafficking.
A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine
Authors: Wu Bin , Shi Xiaofeng , Han Wei , Wang Taishan , Wang Chunru , Jiang Li
Published: September 2018

An “on–off–on” fluorescent phosphorus/nitrogen co-doped carbon dot (PNCD) probe was explored for the determination of Cr(vi) and dopamine resulting from the inner filter effect (IFE).
Thermally stable La2LiSbO6:Mn4+,Mg2+far-red emitting phosphors with over 90% internal quantum efficiency for plant growth LEDs
Authors: Sun Liangling , Devakumar Balaji , Liang Jia , Li Bin , Wang Shaoying , Sun Qi , Guo Heng , Huang Xiaoyong
Published: September 2018

Double perovskite La2LiSbO6:Mn4+,Mg2+far-red emitting phosphors with internal quantum efficiency as high as 92% and good thermal stability were developed for plant growth LEDs.
Far-red-emitting double-perovskite CaLaMgSbO6:Mn4+phosphors with high photoluminescence efficiency and thermal stability for indoor plant cultivation LEDs
Authors: Liang Jia , Sun Liangling , Devakumar Balaji , Wang Shaoying , Sun Qi , Guo Heng , Li Bin , Huang Xiaoyong
Published: September 2018

Far-red-emitting double-perovskite CaLaMgSbO6:Mn4+phosphors with high quantum efficiency and thermal stability were developed for potential applications in indoor plant cultivation LEDs.
Morphosyntax Production of Preschool Children With Hearing Loss: An Evaluation of the Extended Optional Infinitive and Surface Accounts
Authors: Werfel Krystal L.
Published: September 2018

Purpose

The first aim of this study was to explore differences in profiles of morphosyntax production of preschool children with hearing loss (CHL) relative to age- and language-matched comparison groups. The second aim was to explore the potential of extending 2 long-standing theoretical accounts of morphosyntax weakness in children with specific language impairment to preschool CHL.

Method

This study examined conversational language samples to describe the accuracy and type of inaccurate productions of Brown's grammatical morphemes in 18 preschool CHL as compared with an age-matched group (±3 months,
n
= 18) and a language-matched group (±1 raw score point on an expressive language subtest,
n
= 18). Age ranged from 45 to 62 months. Performance across groups was compared. In addition, production accuracy of CHL on morphemes that varied by tense and duration was compared to assess the validity of extending theoretical accounts of children with specific language impairment to CHL.

Results

CHL exhibited particular difficulty with morphosyntax relative to other aspects of language. In addition, differences across groups on accuracy and type of inaccurate productions were observed. Finally, a unified approach to explaining morphosyntax weakness in CHL was more appropriate than a linguistic- or perceptual-only approach.

Conclusions

Taken together, the findings of this study support a unified theoretical account of morphosyntax weakness in CHL in which both tense and duration of morphemes play a role in morphosyntax production accuracy, with a more robust role for tense than duration.
Data calibration for the MASCARA and bRing instruments
Authors: Talens G. J. J. , Deul E. R. , Stuik R. , Burggraaff O. , Lesage A.-L. , Spronck J. F. P. , Mellon S. N. , Bailey J. I. , Mamajek E. E. , Kenworthy M. A. , Snellen I. A. G.
Published: September 2018

Aims. MASCARA and bRing are photometric surveys designed to detect variability caused by exoplanets in stars with mV < 8.4. Such variability signals are typically small and require an accurate calibration algorithm, tailored to the survey, in order to be detected. This paper presents the methods developed to calibrate the raw photometry of the MASCARA and bRing stations and characterizes the performance of the methods and instruments.

Methods. For the primary calibration, a modified version of the coarse decorrelation algorithm is used, which corrects for the extinction due to the earth’s atmosphere, the camera transmission, and intrapixel variations. Residual trends are removed from the light curves of individual stars using empirical secondary calibration methods. In order to optimize these methods, as well as characterize the performance of the instruments, transit signals were injected in the data.

Results. After optimal calibration an RMS scatter of 10 mmag at mV ~ 7.5 is achieved in the light curves. By injecting transit signals with periods between one and five days in the MASCARA data obtained by the La Palma station over the course of one year, we demonstrate that MASCARA La Palma is able to recover 84.0, 60.5 and 20.7% of signals with depths of 2, 1 and 0.5%, respectively, with a strong dependency on the observed declination, recovering 65.4% of all transit signals at δ > 0° versus 35.8% at δ < 0°. Using the full three years of data obtained by MASCARA La Palma to date, similar recovery rates are extended to periods up to ten days. We derive a preliminary occurrence rate for hot Jupiters around A-stars of >0.4%, knowing that many hot Jupiters are still overlooked. In the era of TESS, MASCARA and bRing will provide an interesting synergy for finding long-period (>13.5 days) transiting gas-giant planets around the brightest stars.
The braid group: redefining
Authors: Nasution Mahyuddin K M
Published: September 2018

The role of the braid group constitutes one of the invariant measurements. Through the classification of braids formed several parts of the braid group, but does not computationally distinguish them. Some characteristics have been expressed to give the features to a braid in braid group based on redefining relation between braid group and permutation group.
The implementation of fisher yates shuffle on aljabar learning media based on hybrid application
Authors: Maryono Iyon , Zulfikar Wildan Budiawan , Kariadinata Rahayu
Published: September 2018

Learning media are widely circulated in the school environment, especially Madrasah Tsanawiyah is a native-shaped media for a particular type of smart phone. There is a problem if there are learners who use different types of smart phones of different types of OS, brand, type, and screen size. This work proposed a hybrid application technology to design the learning media so that it can be accessed by various types of smart phones. Rational Unified Process (RUP) implementing as the main framework. The Fisher Yates Shuffle algorithm applied to the training module and exam to display the sequence of questions and random answer options.
Total vertex irregularity strength of comb product of two cycles
Authors: Ramdani Rismawati , Ramdhani Muhammad Ali
Published: September 2018

Let G = (V (G),E(G)) be a graph and k be a positive integer. A total k-labeling of G is a map f : V (G) ∪ E(G) → {1,2...,k}. The vertex weight v under the labeling f is denoted by Wf(v) and defined by Wf(v) = f(v) + Σuv∈E(G)f(uv). A total k-labeling of G is called vertex irregular if there are no two vertices with the same weight. The total vertex irregularity strength of G, denoted by tvs(G), is the minimum k such that G has a vertex irregular total k-labeling. This labeling was introduced by Bača, Jendrol', Miller, and Ryan in 2007. Let G and H be two connected graphs. Let o be a vertex of H . The comb product between G and H, in the vertex o, denoted by G⊳o H, is a graph obtained by taking one copy of G and |V (G)| copies of H and grafting the i-th copy of H at the vertex o to the i-th vertex of G. In this paper, we determine the total vertex irregularity strength of comb product of Cn and Cm where m ∈ {1,2}.
Hybrid Approach Redefinition (HAR) model for optimizing hybrid ensembles in handling class imbalance: a review and research framework
Authors: Hartono Hartono , Sitompul Opim Salim , Tulus Tulus , Nababan Erna Budhiarti , Napitupulu Darmawan
Published: September 2018

The purpose of this research is to develop a research framework to optimize the results of hybrid ensembles in handling class imbalance issues. The imbalance class is a state in which the classification results give the number of instances in a class much larger than the number of instances in the other class. In machine learning, this problem can reduce the prediction accuracy and also reduce the quality of the resulting decisions. One of the most popular methods of dealing with class imbalance is the method of ensemble learning. Hybrid Ensembles is an ensemble learning method approach that combines the use of bagging and boosting. Optimization of Hybrid Ensembles is done with the intent to reduce the number of classifier and also obtain better data diversity. Based on an iterative methodology, we review, analyze, and synthesize the current state of the literature and propose a completely new research framework for optimizing Hybrid Ensembles. In doing so, we propose a new taxonomy in ensemble learning that yields a new approach of sampling-based Ensembles and will propose an optimization Hybrid Ensembles using Hybrid Approach Redefinition (HAR) Model that combines the use of Hybrid Ensembles and Sampling Based Ensembles methods. We further provide an empirical analysis of the reviewed literature and emphasize the benefits that can be achieved by optimizing Hybrid Ensembles.