bluuebunny/crossref_metadata_2025_split huggingface dataset:
4‐Phosphoryl Pyrazolones for Highly Selective Lithium Separation from Alkali Metal Ions
Authors: Zhang Jianfeng , Wenzel Marco , Steup Johannes , Schaper Gerrit , Hennersdorf Felix , Du Hao , Zheng Shili , Lindoy Leonard F. , Weigand Jan J. 
Published: October 2021

AbstractEffective receptors for the separation of Li+ from a mixture with other alkali metal ions under mild conditions remains an important challenge that could benefit from new approaches. In this study, it is demonstrated that the 4‐phosphoryl pyrazolones, HL2‐HL4, in the presence of the typical industrial organophosphorus co‐ligands tributylphosphine oxide (TBPO), tributylphosphate (TBP) and trioctylphosphine oxide (TOPO), are able to selectively recognise and extract lithium ions from aqueous solution. Structural investigations in solution as well as in the solid state reveal the existence of a series of multinuclear Li+ complexes that include dimers (TBPO, TBP) as well as rarely observed trimers (TOPO) and represent the first clear evidence for the synergistic role of the co‐ligands in the extraction process. Our findings are supported by detailed NMR, MS and extraction studies. Liquid‐liquid extraction in the presence of TOPO revealed an unprecedented high Li+ extraction efficiency (78 %) for HL4 compared to the use of the industrially employed acylpyrazolone HL1 (15 %) and benzoyl‐1,1,1‐trifluoroacetone (52 %) extractants. In addition, a high selectivity for Li+ over Na+, K+ and Cs+ under mild conditions (pH ∼8.2) confirms that HL2‐HL4 represent a new class of ligands that are very effective extractants for use in lithium separation.
Heterogeneity of magnitude, allergen immunodominance, and cytokine polarization of cockroach allergen‐specific T cell responses in allergic sensitized children
Authors: da Silva Antunes Ricardo , Sutherland Aaron , Frazier April , Schulten Veronique , Pomés Anna , Glesner Jill , Calatroni Agustin , Altman Matthew C. , Wood Robert A. , O'Connor George T. , Pongracic Jacqueline A. , Khurana Hershey Gurjit K. , Kercsmar Carolyn M. , Gruchalla Rebecca S. , Gill Michelle , Liu Andrew H. , Zoratti Edward , Kattan Meyer , Busse Paula J. , Bacharier Leonard B. , Teach Stephen J. , Wheatley Lisa M. , Togias Alkis , Busse William W. , Jackson Daniel J. , Sette Alessandro 
Published: October 2021

AbstractBackgroundCharacterization of allergic responses to cockroach (CR), a common aeroallergen associated with asthma, has focused mainly on IgE reactivity, but little is known about T cell responses, particularly in children. We conducted a functional evaluation of CR allergen‐specific T cell reactivity in a cohort of CR allergic children with asthma.MethodsPeripheral blood mononuclear cells (PBMCs) were obtained from 71 children, with mild‐to‐moderate asthma who were enrolled in a CR immunotherapy (IT) clinical trial, prior to treatment initiation. PBMC were stimulated with peptide pools derived from 11 CR allergens, and CD4+ T cell responses assessed by intracellular cytokine staining.ResultsHighly heterogeneous responses in T cell reactivity were observed among participants, both in terms of the magnitude of cytokine response and allergen immunodominance. Reactivity against Bla g 9 and Bla g 5 was most frequent. The phenotype of the T cell response was dominated by IL‐4 production and a Th2 polarized profile in 54.9% of participants, but IFNγ production and Th1 polarization was observed in 25.3% of the participants. The numbers of regulatory CD4+ T cells were also highly variable and the magnitude of effector responses and Th2 polarization were positively correlated with serum IgE levels specific to a clinical CR extract.ConclusionsOur results demonstrate that in children with mild‐to‐moderate asthma, CR‐specific T cell responses display a wide range of magnitude, allergen dominance, and polarization. These results will enable examination of whether any of the variables measured are affected by IT and/or are predictive of clinical outcomes.
Rooting out the weeds that bind: Disemboweling the devil after 2020
Authors: Wilkinson Annie 
Published: October 2021

AbstractYear‐end rituals give arbitrary transitions meaning, facilitate collective mourning or sensemaking, enable closure or catharsis, or, alternatively, their refusal. Through a blend of creative fiction and feminist auto‐ethnography, this essay observes the end of 2020 with a both/and offer: a medium for processing the collective trauma of 2020, the Year of the Bindweed, and an invitation to whimsically imagine the otherwise in the insurgent thallopower of 2021, the Year of the Mushroom. As I strive to uproot its endless twists and turns through 2020, I follow the bindweed's path from Minneapolis to Mars and back as it courses through countless crises named and unnamed only to wind up back in my garden. There I find that this Convolvulus arvensis is deeply rooted in an entangled system of White supremacy, heteropatriarchy, imperialism, and capitalism, regenerating itself with no clear beginning or end to weed out or unravel. Theorizing in “ex‐centric sites” (Harrison 2016), this essay is the compost pile of my ethnographic work on anti‐feminism and right‐wing populism. Drawing allegories from the garden as another way of knowing (Jones 2000), it “centers an embodied feminist ethos” (Berry et al. 2017) in a form fugitive to the conventional modalities of academic theory‐making. [Corrections added on 25 October 2021 after first online publication: The abstract was added to the article.]
Impacts of case‐based payments reform on healthcare providers' behaviour on cataract surgery in a tertiary hospital in China: An eight‐year retrospective study
Authors: Zhang Lingli , Sun Lihua 
Published: October 2021

AbstractBackgroundCase‐based payment has extensively been adopted to replace the fee‐for‐service payment in China. This paper aims to assess the impacts of case‐based payment reform on the providers' behaviour using cataract surgery as an example.MethodsA total of 400 cataract inpatients were sampled in a tertiary hospital. Data analysis consisted of descriptive statistics, Wilcoxon rank‐sum test and Chi‐square test.ResultsThe number of routine preoperative laboratory tests and drugs significantly declined after the case‐based payment reform (p < 0.001). Healthcare providers significantly reduced the use frequency of systemic glucocorticoids (GCs) and antibiotics, adjuvant drugs, multiple antibiotic eye drops, generic drugs in cataract surgery after reform (p < 0.001), and they reduced non‐ophthalmic medications after reform (p < 0.01). Notably, all patients were prescribed GC eye drops, antibiotic eye drops, and original drugs in both groups. Moreover, the preoperative, postoperative, and total length of stay (LOS) declined after the reform (p < 0.001). Nonetheless, no significant difference was noted in the care quality between the two group.ConclusionThe case‐based payment reform decreased the intensity of care by reducing unnecessary drugs and retaining necessary drugs on cataract surgery. Besides, the LOS was shortened. Further, an impaired care quality was not witnessed, however, cost‐shifting warrants further attention.
Existence of normalized solutions for the coupled Hartree–Fock type system
Authors: Wang Jun 
Published: October 2021

AbstractStanding waves solutions for a coupled Hartree–Fock type nonlocal elliptic system are considered. This nonlocal type problem was considered in the basic quantum chemistry model of small number of electrons interacting with static nucleii which can be approximated by Hartree or Hartree–Fock minimization problems. First, we prove the existence of normalized solutions for different ranges of the positive (attractive case) coupling parameter for the stationary system. Then we extend the results to systems with an arbitrary number of components. Finally, the orbital stability of the corresponding solitary waves for the related nonlocal elliptic system is also considered.
Determination of dielectric properties of natural fiber reinforced polymer composite using adaptive neuro fuzzy inference system
Authors: Prashanth P.V.S.H. , Jayamani E. , Soon K.H. , Wong Y. 
Published: October 2021

AbstractIn this study, the dielectric properties of polylactic acid reinforced with natural fibers are objectified by using adaptive neuro fuzzy inference system (ANFIS). This method is considered to be economically feasible as compared to fabricating dielectric samples and measuring dielectric properties with apt operating conditions and advanced equipment. Also, past research has focused primarily on polymer dielectric properties which does not involve any natural fiber inclusion, such that this research will focus on producing ANFIS models for natural fibers which will then be used to calculate dielectric permittivity (
), dielectric loss (
) with respect to frequency dependencies. Furthermore, experimental results of dielectric constants and losses of polylactic acid (PLA) based composites will be analyzed from past research which used physical techniques to fabricate composites and will be compared with the results from ANFIS models. It was found that error computation of both the properties are found to be low and the percentage difference in output data is considered less. In addition, the ANFIS neural network had predicted most of the data that was trained, and the crisp output values were found to correlate with the experimental dielectric properties which makes this prediction model possible to use as an alternative approach to fabricating composites and testing.
An atomistic investigation into water adsorption behavior on the surfaces of quartz (001) and calcite (001)
Authors: Khosravi V. , Mahmood S.M. , Hosseini S.J. , Rostami A. 
Published: October 2021

AbstractThe adsorption measurement of various substances in presence of the reservoir minerals has been investigated in the last few years to describe the existing phenomena in the oil and gas energy‐related sectors. However, there still needs further research to understand pure water adsorption behavior on reservoir minerals as the fundamental study. In this study, molecular dynamics simulation was carried out to investigate the adsorption behavior of water molecules on the surface of minerals. In this matter, composite integrated layers were built for quartz‐water and calcite‐water systems to conduct water adsorption calculations from ambient temperature to the reservoir temperature. Results illustrated less amount of water adsorption on quartz; however, the hydrophilicity of calcite surface by disturbing aqueous layers along with a distance of 1.5 Å–2.5 Å. In addition, the temperature effect was observed into lesser adsorption energy by heating up the water toward its’ boiling point. This study contributes to a wider insight into pure water adsorption features before designing complex microstructures.
Investigation and optimization of heat treatment process on tensile behaviour of Ti6Al4V alloy
Authors: Omoniyi P.O. , Mahamood R.M. , Arthur N. , Pityana S. , Akinlabi S.A. , Okamoto Y. , Maina M.R. , Akinlabi E.T. 
Published: October 2021

AbstractThis article examines the microstructure and tensile strength of annealed Ti6Al4V alloy at different temperatures and times. Taguchi based L9 (32) design was used for the experimental design matrix and optimization of the tensile strength of heat treated samples. The optimum parameter combination was at the temperature of 950 °C and soaking time of 1 hour. ANOVA results show that temperature is the most influencing parameter and a regression equation of degree two was developed to predict tensile strength. Results of the microstructure show lamellar structure development within the samples heat‐treated at 1000 °C.
Renewable energy incorporating short‐term optimal operation using oppositional grasshopper optimization
Authors: Hazra Sunanda , Kumar Roy Provas 
Published: October 2021

AbstractRenewable energy‐based hydro‐thermal scheduling is a new assignment in solar‐wind‐hydro power structures including thermal plants with non‐convex fuel costs, a time delay of the multi‐reservoir cascaded hydro unit, generating units for wind power, and photo‐voltaic plant of the solar system. Renewable energy resources are used in immense quantity as they are naturally accessible and charge‐free. In this regard, this article presents a single‐objective economic replica of short‐term hydro‐thermal scheduling (HTS) problems having renewable solar and wind units. To speed up the convergence swiftness, of OBL is incorporated with the fundamental grasshopper optimization algorithm (GOA) method which is actively associated with the social communication of the grasshopper in the environment. Furthermore, HTS and hydro thermal scheduling incorporating solar and wind energy are considered for the benchmark test systems. Results presented by a few recent techniques (like fuzzy based evolutionary programming, teaching learning‐based optimization, etc.) have been compared with those obtained by the oppositional GOA (OGOA) to set up its effectiveness. Simulation results of OGOA technique clearly show that the renewable solar and wind units can significantly reduce the fuel cost of the power systems.
Side‐chain induced chirality in diketopyrrolopyrrole based polymers
Authors: Maity Soham , Bedi Anjan , Patil Satish 
Published: October 2021

AbstractChiral all‐π‐conjugated conducting polymers are of significant importance because of their promising aspects ranging from organic electronics, organic spin filters, efficient water splitting materials, magneto‐optic materials to circularly polarized light emitters. Here, we report the synthesis and characterization of the first series of diketopyrrolopyrrole based chiral low band‐gap alternating copolymers. Alongside characterizations by UV and CD spectroscopy, AFM and FESEM were further performed to understand the morphology of the optically active polymers. The stereochemistry of the side‐chains on TDPP unit played a pivotal role in determining chiroptical properties and supramolecular self‐assembly of the copolymers in solution which lead to layer‐by‐layer helical morphology in solid‐state. Interestingly, D‐A intramolecular charge transfer transition showed Cotton effect with bimodal nature, which is remarkably stronger than the π‐π* transition.
“Can You Search for Me?”: Understanding and ImprovingUser‐SystemDialogues for Complex Search Tasks
Authors: Ghosh Souvick 
Published: October 2021

AbstractMost voice‐based personal assistants are suitable for simple tasks which are not conversational but single‐turn question‐answering. To address this limitation, we investigate the dialogue capabilities of commercial conversational systems and compare them to the standards expected by the users. We designed a set of moderately complex search tasks and used two popular personal assistants to evaluate the user‐system interaction. A laboratory‐based user study was conducted with twenty‐five users and seventy‐five search sessions to collect user‐system conversational dialogues (for three search tasks). Next, we show that using a set of simple rules, which could be implemented in the immediate future, it is possible to improve the users' interaction experience and make the system more anthropomorphic. Using a conceptual prototype where a human (Wizard) played the role of the system (unknowing to the users), we demonstrate the efficacy of the guidelines and provide design recommendations for future conversational search systems.
Image Position and Layout Effects on User Engagement of Multi‐image Tweets
Authors: Ma Xiaoyue , Meng Xiao 
Published: October 2021

AbstractCurrent researchers pay less attention to the image position and layout of tweets containing multiple images. This study explored the impact of image position and layout on user engagement on the Weibo platform. The XGBoost model trained on single‐image tweet data was used to predict the “user engagement potential” of images in multi‐image tweets. Then, the image position and layout effects on user engagement were analyzed through correlation analysis and OLS regression. It was found that the right position was more important in tweets with less than or equal to 4 images, and the position effects became symmetric with image adding. Layouts with 2, 3, 4, 5, 6, 8 images had positive effects on user engagement, while layouts with 7 and 9 or more images had negative effects. This study provides insights for user engagement with social media images and may help improve interaction.
Youth Information Interaction Research in the Pandemic: Adjustments, Innovations, Implications
Authors: Figueiredo Vanessa , Meyers Eric M. , Bilal Dania , Rutter Sophie , Magee Rachel M. 
Published: October 2021

AbstractFor over a year, the pandemic has forced youth to alter their routines and rely almost exclusively on technology to learn, play and connect with family and friends. Although some alterations in youth's routine seem to be temporary, some adaptations and appropriations resulting from interactions with technology will likely be forever altered. As this scenario develops, we must reflect on how these permanent changes will affect our approaches and inquiries on youth information interaction. This 90‐minute panel will convene scholars and members of the ASIS&T community interested in discussing the present and the future of digital youth research. Panelists will mediate focused conversations with participants to generate a collective account of experiences and reflections based on challenges and research plans for after the pandemic. As the implications of a global pandemic are unfolding, youth information interaction research will be critical to inform policies and programs in education and reduce digital divides.
What's Next for Information World Mapping?: International and Multidisciplinary Uses of the Method
Authors: Greyson Devon , Tsai Tien‐I , Kitzie Vanessa , Martzoukou Konstantina , Mabi Millicent 
Published: October 2021

AbstractAs use of arts‐involved and data visualization methods increases in information science, it is important to reflect on strengths and weaknesses of various methods. In this 90‐minute panel, an international lineup of information researchers will share their experiences using the participatory, visual elicitation technique information world mapping (IWM) in their work. Panelists will discuss ways to adapt the technique to different contexts, share their thoughts on what is next for IWM, and raise questions regarding challenges and new uses of IWM in information research. Presentations will be followed by an interactive discussion among panelists and Q&A period with the audience.
Examining Concepts of the Public: Who is Served by Information Services?
Authors: Montoya Robert D. , Abbott Jeremy , Caswell Michelle , Leazer Gregory H. , Noble Safiya , Soos Carlin 
Published: October 2021

AbstractThe goal of this panel is to define foundational social and epistemic “boundaries” within the “public sphere” that libraries and information institutions typically consider when defining their constituents of interest. Defining what we mean by the “public” or “communities” in “public libraries,” for example, is important, not only because the concept of a “public” is plural and contextually situated, but also because the boundaries of said public are often artificially outlined depending on social and cultural aims. To what degree do information services act like politics, strategically defining “community” to exclude as much as include? In politics, the “public” and its representative rights vary from state‐to‐state and county to county. Is this variation the same as regional differences in reading, described, for example, in The Geography of Reading (Wilson, 1938). Is it more overtly racial (e.g. Lipsitz 2011) or political (e.g. Bishop 2009)? What is a “citizen” in this space, and how does that differ from our construction of the public? Which publics are being denied their needs through the boundaries erected by these institutions and systems?
A Comparison of Search Functionalities in Several Tools Used for Searching within Digital Text Collections
Authors: Ball Liezl H. , Bothma Theo J.D. 
Published: October 2021

AbstractThe search functionalities that a search tool for a digital text collection offer, will determine how a user can interact with and search in such a collection. This poster considers the search functionalities in four tools that are used to search within digital text collections. Search functionalities that are well known in information science, namely basic word searching, phrase searching, wildcards, Boolean operators, proximity searching, field searching, case sensitive searching, filtering, as well as linguistic search functions will be considered. Knowledge about search functionalities can inform and improve the design of tools for digital text collections.
Impact of Gain‐Loss Message Framing on Bedtime Procrastination of College Students: From the Perspective of the Powerful Effect Theory
Authors: Liu Ziqi , Li Shijuan 
Published: October 2021

AbstractBedtime procrastination leads to hormonal and immune disruption, especially for college students who tend to stay up late on their own initiatives. Previous studies showed effectiveness of the message framing in smoking cessation and physical disorder by presenting gain and loss information. We try to explore the effect of message framing on college students' bedtime procrastination behavior, also the powerful effect theory was combined into our approach to augment the acceptance of gain and loss information. The ongoing study recruits 3 groups of participants (experimental group A, B and control group C), each group will be recorded of their information acceptance and behavior changes by bedtime procrastination scale for 4 weeks. Initial findings suggest that our research design is feasible and indicate the possibility of improvement in bedtime procrastination scale. This study shows light on combining communication theory and health behavior changes.
Written News Search Engines and Retrieval Systems of the Databases of Spanish Digital Newspapers
Authors: Muñoz‐García Francisco‐Javier , López‐Hernández María‐Ángeles , Domínguez‐Delgado Rubén 
Published: October 2021

ABSTRACTIn light of the dearth of empirical studies of the quality of the databases of Spanish digital newspapers, this paper delves into the issue. Accordingly, the databases of 55 Spanish digital general newspapers were examined for the purpose of determining the quality of their retrospective written news search engines and retrieval systems. The results indicate the following: (1) the vast majority of the databases analysed employ search models based exclusively on a calendar or text box, thus hindering the selective retrieval of information; (b) a large proportion of these databases do not allow users to employ several fields in order to filter and narrow down their searches; and (3) all the online news databases lack search guides and controlled vocabularies or thesauruses. From these finding it is possible to infer that the majority of the databases of the Spanish digital press are, as a rule, rudimentary and inefficient.