bluuebunny/crossref_metadata_2025_split huggingface dataset:
Edge-enriched MoS2 for kinetics-enhanced potassium storage
Authors: Jiang Guangshen , Xu Xiaosa , Han Haojie , Qu Changzhen , Repich Hlib , Xu Fei , Wang Hongqiang 
Published: July 2020

AbstractPotassium-ion batteries (PIBs) hold great promise as alternatives to lithium ion batteries in post-lithium age, while face challenges of slow reaction kinetics induced by the inherent characteristics of large-size K+. We herein show that creating sufficient exposed edges in MoS2 via constructing ordered mesoporous architecture greatly favors for improved kinetics as well as increased reactive sites for K storage. The engineered MoS2 with edge-enriched planes (EE-MoS2) is featured by three-dimensional bicontinuous frameworks with ordered mesopores of ~ 5.0 nm surrounded by thin wall of ~9.0 nm. Importantly, EE-MoS2 permits exposure of enormous edge planes at pore walls, renders its intrinsic layer spacing more accessible for K+ and accelerates conversion kinetics, thus realizing enhanced capacity and high rate capability. Impressively, EE-MoS2 displays a high reversible charge capacity of 506 mAh·g−1 at 0.05 A·g−1, superior cycling capacities of 321 mAh·g−1 at 1.0 A·g−1 after 200 cycles and a capacity of 250 mAh·g−1 at 2.0 A·g−1, outperforming edge-deficient MoS2 with nonporous bulk structure. This work enlightens the nanoarchitecture design with abundant edges for improving electrochemical properties and provides a paradigm for exploring high-performance PIBs.
Sozialpädagogik als disziplinäre Grenzgänger*in
Authors: Hünersdorf Bettina 
Published: July 2020

ZusammenfassungSozialpädagogik als disziplinäre Grenzgänger*in nimmt die disziplinäre Form der Sozialpädagogik in den Anfängen ihrer Versozialwissenschaftlichung in den Blick. Dabei wird eine Lesart von Aloys Fischers Sozialpädagogik entwickelt, die mit ihm und über ihn hinaus gehend die These begründet, dass die Sozialpädagogik sich durch eine doppelte Offenheit kennzeichne: zum einen die Offenheit gegenüber anderen sozialwissenschaftlichen Disziplinen wie der Soziologie und der Psychologie, welche zur interdisziplinären Konstitution der Sozialpädagogik beitrage, zum anderen die Offenheit gegenüber der professionellen Praxis. Erst durch diese doppelt miteinander verschränkte Relationierung der Sozialpädagogik ergibt sich ihre spezifische, sich gegenüber anderen Sozialwissenschaften unterscheidende Gestalt. Mit der ‚deskriptiven‘ Sozialpädagogik gibt es Anknüpfungspunkte für eine erkenntnistheoretische und methodologische Grundlegung, die durch sinnliche Erkenntnisbildung vermag zwischen einer sozialwissenschaftlich generierten Theorie der Sozialpädagogik und einer professionellen Praxis der Sozialpädagogik zu vermitteln. Dadurch bekommt die Sozialpädagogik als Disziplin eine performative (zukunfts-)offene Form, in welcher der Bruch zwischen sozialpädagogischer Theorie und professioneller Praxis nicht als Problem, sondern als Möglichkeit wahrgenommen wird, sich (un-)abhängig voneinander zu konstituieren.
Preschool Teachers’ Perspectives About the Engagement of Immigrant and Non-Immigrant Parents in Their Children’s Early Education
Authors: Kurucz Csaba , Lehrl Simone , Anders Yvonne 
Published: July 2020

AbstractThe present study explores the perceptions of teachers about the engagement of immigrant and non-immigrant parents in preschool. Data were drawn from a larger evaluation study of a government initiative for preschools in Germany, which was designed to foster inclusive pedagogy and parent cooperation. In these analyses, teachers’ perceptions of the engagement of immigrant parents and non-immigrant parents were rated for each parent group, on a 10-item measure, to identify how teacher ratings varied for the different parent groups. Data from 1397 preschool teachers, employed across 203 preschools, were analyzed using multilevel modeling. This statistical approach takes account of the clustered nature of the data. Teacher ratings of engagement for immigrant and non-immigrant parent groups differed between preschools. Most variability in the ratings could be ascribed to preschool characteristics. In preschools, in which staff held a shared understanding of dealing with cultural diversity and in which the director of the preschool had a multicultural mindset, teachers perceived engagement of parents more positively, especially for immigrant parents. Overall, the findings identified the importance of self-efficacy for inclusion and more positive beliefs about multiculturalism among preschool teachers. Such qualities are important for working with all parents. However, unfavorable social structures, such as those found in disadvantaged areas, may present major challenges for parent cooperation and engagement.
Bi-FoRe: an efficient bidirectional knockin strategy to generate pairwise conditional alleles with fluorescent indicators
Authors: Han Bingzhou , Zhang Yage , Bi Xuetong , Zhou Yang , Krueger Christopher J. , Hu Xinli , Zhu Zuoyan , Tong Xiangjun , Zhang Bo 
Published: July 2020

AbstractGene expression labeling and conditional manipulation of gene function are important for elaborate dissection of gene function. However, contemporary generation of pairwise dual-function knockin alleles to achieve both conditional and geno-tagging effects with a single donor has not been reported. Here we first developed a strategy based on a flipping donor named FoRe to generate conditional knockout alleles coupled with fluorescent allele-labeling through NHEJ-mediated unidirectional targeted insertion in zebrafish facilitated by the CRISPR/Cas system. We demonstrated the feasibility of this strategy at sox10 and isl1 loci, and successfully achieved Cre-induced conditional knockout of target gene function and simultaneous switch of the fluorescent reporter, allowing generation of genetic mosaics for lineage tracing. We then improved the donor design enabling efficient one-step bidirectional knockin to generate paired positive and negative conditional alleles, both tagged with two different fluorescent reporters. By introducing Cre recombinase, these alleles could be used to achieve both conditional knockout and conditional gene restoration in parallel; furthermore, differential fluorescent labeling of the positive and negative alleles enables simple, early and efficient real-time discrimination of individual live embryos bearing different genotypes prior to the emergence of morphologically visible phenotypes. We named our improved donor as Bi-FoRe and demonstrated its feasibility at the sox10 locus. Furthermore, we eliminated the undesirable bacterial backbone in the donor using minicircle DNA technology. Our system could easily be expanded for other applications or to other organisms, and coupling fluorescent labeling of gene expression and conditional manipulation of gene function will provide unique opportunities to fully reveal the power of emerging single-cell sequencing technologies.
Promoting Clean Energy Innovation at the State and Local Level
Authors: Popp David 
Published: July 2020

AbstractInnovation is an important part of energy policy, and encouraging clean energy innovation is often an explicit goal of policy makers. For local governments, promoting clean energy innovation is seen not only as a pathway to a cleaner economy but also as a tool for promoting the local economy. But is such optimism warranted? There is a substantial literature examining the relationships between innovation and environmental policy, but few studies focus explicitly on innovation at the state and local level. In this paper, I provide key lessons from research on clean energy innovation, focusing on lessons relevant for state and local governments. I then summarize the results of a recent working paper by Fu et al. (2018) that studied wind energy innovation across individual states in the United States. While state-level policies can promote clean energy innovation, it is overall market size that matters most. Thus, innovation need not occur in those states most actively promoting clean energy. I conclude with lessons for state and local governments drawn from both this work and the broader literature on energy innovation.
Asylum Courts, Transnational Petitioning, and Digital Dispersal in Africa
Authors: Lawrance Benjamin N. , Corcoran Erin B. , Hooper Louise 
Published: July 2020

AbstractAsylum court records are a potentially important evidentiary basis for postcolonial African history. Asylum-seeking is a contemporary transnational iteration of a rich African petitioning tradition. In the contemporary era, the digitization of court records, and their dispersal as a function of the shifting division of work between ministries, courts, and related bureaucracies, presents a challenge to researchers. Digital record keeping may improve accessibility, but only if researchers are familiar with the technology and archival methods and practices accompanying digitization.
Modelling dynamic ice-sheet boundaries and grounding line migration using the level set method
Authors: Hossain M. Alamgir , Pimentel Sam , Stockie John M. 
Published: July 2020

AbstractComputing predictions of future sea level that include well-defined uncertainty bounds requires models that are capable of robustly simulating the evolution of ice sheets and glaciers. Ice flow behaviour is known to be sensitive to the location and geometry of dynamic ice boundaries such as the grounding line (GRL), terminus position and ice surface elevation, so that any such model should track these interfaces with a high degree of accuracy. To address this challenge, we implement a numerical approach that uses the level-set method (LSM) that accurately models the evolution of the ice–air and ice–water interface as well as capturing topological changes in ice-sheet geometry. This approach is evaluated by comparing simulations of grounded and marine-terminating ice sheets to various analytical and numerical benchmark solutions. A particular advantage of the LSM is its ability to explicitly track the moving margin and GRL while using a fixed grid finite-difference scheme. Our results demonstrate that the LSM is an accurate and robust approach for tracking the ice surface interface and terminus for advancing and retreating ice sheets, including the transient marine ice-sheet interface and GRL positions.
The National Growth of a Regional Party: Evidence of Linkages between Constituency Associations in the Conservative Party of Canada
Authors: Currie-Wood Rob 
Published: July 2020

AbstractReforms to campaign finance laws at the beginning of the twenty-first century led to concerns that Canadian political parties would become more centralized, thereby altering the stratarchical arrangement between local party organizations and the national party office. This article extends the period of analysis to 2008 and 2011. Although concerns were not unfounded, data reported in this article reveal that horizontal linkages developed between constituency associations in the Conservative Party of Canada, instead of downward money transfers from the national office. The article compares the Conservative party to its major competitors and explores three regional cases where these linkages are prevalent. Tobit regression is used to examine whether monetary transfers are coordinated by the central office or initiated by local constituency associations. Given weak evidence for the latter, the findings demonstrate that parties with a reliable base of support can leverage their campaign resources from one region into a national presence.
Maize relay intercropping with fodder crops for small-scale farmers in central Brazil
Authors: Baldé Alpha Bocar , Scopel Eric , Affholder François , Da Silva Fernando Antonio Macena , Wery Jacques , Corbeels Marc 
Published: July 2020

AbstractRelay intercropping of maize with fodder crops is a promising option for sustainable intensification of dairy small-scale farms in the Cerrado of Brazil. Twenty-six intercropping trials were conducted on farmers’ fields with the following experimental treatments: sole maize crop cropping (MS), maize-Brachiaria intercropping (MB) and maize-pigeon pea intercropping (MP). The trials were managed by the farmers, i.e. choice of conventional tillage (CT) versus no-tillage (NT), sowing dates, fertilization and weed control. Maize grain yield varied strongly across the farmer fields, from 100 to 5900 kg ha−1 in the MS treatment, 500 to 6900 kg ha−1 in MP and 300 to 5500 kg ha−1 in MB. Intercropping did not significantly affect maize grain yields under NT, but yields were reduced under CT in one out of two seasons. Maize yields in the intercropped systems were also higher under NT than CT. Total biomass productivity was significantly higher in the maize-fodder than in the sole maize system. An increased interval between sowing of maize and fodder crop significantly reduced the fodder crop biomass. Relay intercropping, especially in combination with NT, is a promising option if crop calendars and fertilization are properly managed by farmers to reduce interspecific competition between the maize and fodder crop.
Reproducibility and external validity of on-farm experimental research in Africa
Authors: Kool Hanna , Andersson Jens A. , Giller Ken E. 
Published: July 2020

AbstractAgronomists have increasingly conducted experiments on-farm, in an attempt to increase the wider applicability (external validity) of their experimental findings and their relevance for agricultural development. This review assesses the way in which on-farm experimental studies address the scope or generalisability of their findings when based on a limited number of farms. A central question is how on-farm studies define the environment or research population in which the on-farm trial findings are valid, or are valuable for. Such an assessment is, of course, conditional on the (internal) validity of the experimental findings. We therefore first analyse how authors of on-farm experimental studies describe the factors that may shape experimental outcomes. As agronomic experiments often use ‘yield’ as dependent variable to assess treatment effects, we developed a procedure to score studies on their descriptions of yield-determining factors. Although experimental validity principally rests upon the reproducibility of the experiment and its findings, we found that on the basis of the information provided in published on-farm experimental studies, it is often difficult or impossible to reproduce the experimental design. Nutrient management, weed management and crop information are best described, whereas land preparation, field history and management of pests and water are rarely described. Further, on-farm experimental studies often compare treatments to a ‘farmer practice’ reference or control treatment which is assumed to be widely and uniformly practiced and known to the reader. The wider applicability or external validity is often poorly addressed in the reviewed studies. Most do not explicitly define the research population and/or environment in which (they expect) the experimental findings to work. Academic textbooks on agronomic experimentation are remarkably silent on both the internal and external validity of on-farm experimentation. We therefore argue for more systematic investigations and descriptions of the research population and settings to which on-farm experimental studies seek to generalise their findings.
Age, Education and Intellectual Quotient Influences: Structural Equation Modeling on the study of Benton Visual Retention Test (BVRT)
Authors: Segabinazi Joice Dickel , Pawlowski Josiane , Zanini Adriana Mokwa , Wagner Gabriela Peretti , Sbicigo Juliana Burges , Trentini Clarissa Marceli , Hutz Claudio Simon , de Salles Jerusa Fumagalli , Bandeira Denise Ruschel 
Published: July 2020

Abstract
This study searched for sociodemographic influences on visual memory and visuoconstructive ability in healthy and clinical samples evaluated with Benton Visual Retention Test (BVRT) in two studies. In Study 1, we searched for changes related to age in children, adolescents, adults and elderly on the performance of the BVRT. In Study 2, we investigated the relations among age, years of education and intellectual quotient (IQ) on the performance of the BVRT using Structural Equation Modeling (SEM). Participants were 624 individuals aged between six and 89 years old (M = 25.40; SD = 22.34) from the normatization and evidence validity studies at Brazil. We used a sociodemographic questionnaire, BVRT and IQ measure was estimated. Study 1 has shown a performance similar to the developmental graphics with a U-inverted pattern in relation to age: An increase of the visual memory ability in the children and adolescent groups as age increases, a tendency of a decrease in the performance in the adult group that intensifies in the elderly group. Study 2 found that the model for the BVRT performance tested by SEM denoted satisfactory goodness-of-fit indexes, χ2/gl = 2.67, p < .001; CFI = .92; TLI = .93; RMSEA = .004, 90% CI = [.03, .05];WLSMV = 1.79, and corroborated the theoretical assumption. The SEM model confirmed in this study highlight the strong role of years of education in the prediction of BVRT scores.
Demand for Ports to 2050: Climate Policy, Growing Trade and the Impacts of Sea‐Level Rise
Authors: Hanson Susan E. , Nicholls Robert J. 
Published: July 2020

AbstractPort infrastructure is critical to the world's economy and has seen major expansion over the last few decades. In the future there are likely to be further demands for port capacity which will require additional port area while existing ports will need upgrading in response to sea‐level rise to maintain current levels of operability. This analysis considers potential changes to 2050 under four climate‐based scenarios which aim to explore changes in international maritime trade consistent with global temperature increases of 2 °C and 4 °C and the implications of associated sea‐level rise. All scenarios anticipate a significant increase in trade, and a change in distribution across commodities. The demand for port handling areas in 2050 is roughly double to quadruple that of the baseline (2010) across scenarios. The maximum demand occurs under an unmitigated climate and high intensity in commodity movement with a maximum area in 2050 of 5,054km2. The minimum demand (2,510km2) occurs under a scenario of regionalized green energy production and lower material intensity. The total global investment costs for port adaptation to sea‐level rise and provision of new areas are between 223 and 768 billion USD to 2050. These are dominated by the need for new area construction with the adaptation of base year areas to relative sea‐level rise representing a maximum of 6% of total costs globally. Therefore, in addition to adapting existing port areas to sea‐level rise, it is equally or more important to consider provision of new ports.
Enlarging Regional Disparities in Energy Intensity within China
Authors: Shao Shuai , Wang Chang , Guo Yue , Yang Lili , Chen Shiyi , Yan Jinyue , Shan Yuli , Liu Zhu , Guan Dabo 
Published: July 2020

AbstractAs energy saving and emission reduction become a global action, the disparity in energy intensity between different regions is a new rising problem that stems a country's or region's energy‐saving potential. Here we collect China's provincial panel data (1995–2017) of primary and final energy consumption to evaluate China's unequal and polarized regional pattern in energy intensity, decompose the inequality index into contributing components, and investigate possible driving factors behind the unequal pattern both regionally and structurally, for the first time. The results show that China's interprovince disparities in energy intensity increase and are exacerbated by the enlarging disparities in energy intensity between the least developed and most developed regions of China. The causes for this phenomenon are as follows: (i) rather loose regulatory measures on mitigating coal consumption; (ii) inferior energy processing technology in areas specializing in energy‐intensive industries; (iii) increasing interregional energy fluxes embodied in trade; and (iv) separate jurisdictions at provincial administrative levels. These factors can synthetically result in unintended spillover to areas with inferior green technologies, suggesting an increasingly uneven distribution of energy‐intensive and carbon‐intensive industries and usage of clean energy. The results reveal the necessities of regional coordination and cooperation to achieve a green economy.
Influence of Lithology on Reactive Melt Flow Channelization
Authors: Pec M. , Holtzman B. K. , Zimmerman M. E. , Kohlstedt D. L. 
Published: July 2020

AbstractTo investigate channelization during migration of a reactive melt, we performed a series of Darcy‐type experiments in which an alkali basalt infiltrated partially molten harzburgites and lherzolites at a confining pressure of 300 MPa, temperatures of 1200°C and 1250°C, and pore pressure gradients of ~2 to 60 MPa/mm. We compare our results to those from previously published experiments performed on wehrlites. In all experiments, irrespective of the exact mineralogy, a planar reaction layer composed of olivine + melt developed in which all of the pyroxene was consumed. Under specific conditions controlled primarily by the melt flow velocity, finger‐like channels composed of olivine + melt also developed. In wehrlites, these reaction infiltration instabilities formed at 1200°C and 1250°C at pressure gradients >25 and >5 MPa/mm, respectively. In harzburgites, channelization occurred only at 1250°C at a pressure gradient of 35 MPa/mm. In lherzolites, a planar melt‐filled vein developed at 1250°C; no finger‐like channels formed under a pressure gradient of ~25 MPa/mm. Both the finger‐like channels and the planar vein led to very efficient extraction of melt from the reservoir. Channelization established large compositional variations over short distances in the crystalized phases as well as in the local melt and greatly enhanced the abundance of the reaction product, olivine, similar to dunite channels in the Earth. The range of chemical‐mechanical responses displayed by this array of compositions provides a set of targets for reactive transport and mechanical modeling studies.
Reactivating and Calming Volcanoes: The 2015 MW 8.3 Illapel Megathrust Strike
Authors: Farías Cristian , Basualto Daniel 
Published: July 2020

AbstractThe 2015 MW 8.3 Illapel earthquake was followed in a time frame of weeks to months by very different responses from Nevados de Chillán, Copahue, and Villarrica volcanoes, all located more than 580 km from the rupture zone. Here we show how Nevados de Chillán and Copahue started new eruptive phases, and Villarrica entered in a period of relative calm. Using seismic, geodetic, and geochemical observations, in combination with numerical wave propagation simulations, we also show that the geometry of the fault system controlled the impact of the earthquake on each volcano. We argue that the sensitivity of a volcano toward an earthquake depends on both its critical state before the mainshock and the geometry of its fault system. This is a case where the same earthquake generates very different responses at the same time, at large distances, rendering volcanoes as very sensitive systems.