bluuebunny/crossref_metadata_2025_split huggingface dataset:
Printable Ultra‐Flexible Fluorinated Organic–Inorganic Nanohybrid Sol–Gel Derived Gate Dielectrics for Highly Stable Organic Thin‐Film Transistors and Other Practical Applications
Authors: Kwon Hyeok‐jin , Ye Heqing , Baek Yonghwa , Hong Jisu , Wang Rixuan , Choi Yonghwan , Lee Ilgeum , Park Chan Eon , Nam Sooji , Kim Juyoung , Kim Se Hyun 
Published: December 2020

AbstractA novel fluorinated organic–inorganic (O–I) hybrid sol—gel based material, named FAGPTi, is successfully synthesized and applied as a gate dielectric in flexible organic thin‐film transistors (OTFTs). The previously reported three‐arm‐shaped alkoxysilane‐functionalized amphiphilic polymer yields a stable O–I hybrid material consisting of uniformly dispersed nanoparticles in the sol‐state. Here, a fluorinated precursor is introduced into the system, making it possible to realize more stable spherical composites. This results in long‐term colloidal stability (≈1.5 years) because composite growth is strongly inhibited by the presence of fluorine groups with intrinsically strong repulsive forces. Additionally, the FAGPTi film is easily deposited via thermally annealed sol–gel reactions; the films can be successfully fabricated through the printing method, and exhibit excellent flexibility and enhanced insulating properties compared to existing materials. OTFTs with FAGPTi layers show highly stable driving characteristics under severe bending conditions (1.9% strain). Integrated logic devices are also successfully operated with these OTFTs. Additionally, it can facilely be applied to amorphous indium‐gallium‐zinc‐oxide (a‐IGZO) TFT devices other than OTFT. Therefore, this synthetic strategy can provide useful insights into the production of functional O–I hybrid materials, enabling the efficient fabrication of electronic materials and devices exhibiting these properties.
Understanding the Synergistic Effect of Device Architecture Design toward Efficient Perovskite Light‐Emitting Diodes Using Interfacial Layer Engineering
Authors: Yoon Eojin , Jang Kyung Yeon , Park Jinwoo , Lee Tae‐Woo 
Published: December 2020

AbstractMetal halide perovskite (MHP) light‐emitting diodes (LEDs) have been widely studied and have been reached to >20% external quantum efficiency, owing to their attractive characteristics (e.g., solution processability, tunable bandgap and extremely high color purity, high mobility). During the rapid development of perovskite light‐emitting diodes (PeLEDs), modifying the device architecture has been widely studied as well as improving the crystal quality of MHP to achieve near‐unity photoluminescence quantum yield. However, efforts in device architecture engineering have received less attention despite their significance. Here, strategies are reviewed to enhance the efficiency of PeLEDs in terms of the device engineering by interfacial charge injection/transport, exciton‐quenching blocking, and defect passivation layers for enhancing radiative electron–hole recombination. Strategies are systematically classified for each layer in PeLEDs and discussed the synergetic effect between different strategies. Perspective is also provided on future research on PeLEDs focusing on their architecture.
Germanium‐on‐Carborundum Surface Phonon‐Polariton Infrared Metamaterial
Authors: Qiang Bo , Dubrovkin Alexander M. , Krishnamoorthy Harish N. S. , Wang Qian , Zheludev Nikolay I. , Wang Qi Jie 
Published: December 2020

AbstractSurface phonon‐polaritons in thin layers of high‐index dielectric structures are emerging as promising excitations for exploitation in high‐density photonic devices. Here, a mid‐infrared phononic–dielectric metamaterial, a 2D periodic array of germanium discs on silicon carbide (carborundum) is demonstrated. It is shown that the metamaterial can support sharp resonances at the free space wavelength that is at least ten times larger than lattice parameter of the array. With germanium discs of thickness 120 nm and diameter 1 µm, a metamaterial resonance at the wavelength of 11 µm is observed. A blueshift of the resonant frequency observed upon increase of the disk size is related to the anomalous dispersion of surface polaritons at germanium carborundum interface. It is argued that such surface phonon‐polariton metamaterial is a promising platform for applications where enhanced homogeneity of optical response is required, such as imaging, holography, and cloaking.
Gate‐Switchable Photovoltaic Effect in BP/MoTe2 van der Waals Heterojunctions for Self‐Driven Logic Optoelectronics
Authors: Hu Siqi , Xu Jinpeng , Zhao Qinghua , Luo Xiaoguang , Zhang Xutao , Wang Tao , Jie Wanqi , Cheng Yingchun , Frisenda Riccardo , Castellanos‐Gomez Andres , Gan Xuetao 
Published: December 2020

AbstractRecently, van der Waals heterojunction based on 2D materials emerges as a promising technology for optoelectronic integrated circuits. Here, a self‐driven optoelectronic logic device is demonstrated based on vertically stacked van der Waals heterojunction of black phosphorus and molybdenum telluride. Through the electrostatic doping by gating, the heterojunction is dynamically tuned to isotype (p‐P and n‐N) and anisotype (p‐N) while the built‐in electric field in the heterojunction is greatly changed. Consequently, the photovoltaic effect in the heterojunction is switchable by the gate voltage, enabling a novel self‐driven optoelectronic logic element without the need of external biasing. This optoelectronic logic device shows promising characteristics of output dark current <1 pA, on/off current ratio >105, switching time <10 µs, broadband operation in the spectral range from 400 to 1600 nm, and linearly adjustable output current. The results may open up unprecedented opportunities to employ van der Waals heterojunctions for exploring logic optoelectronics with high performance and low power consumption.
Polarization Dependent Light‐Driven Liquid Crystal Elastomer Actuators Based on Photothermal Effect
Authors: Li Yong , Liu Yanjun , Luo Dan 
Published: December 2020

AbstractLight‐driven liquid crystal elastomers (LCEs) have drawn a great deal of attention as one kind of the most attractive and exciting soft active materials because of their wide application in biomimetic devices, artificial muscles, sensors, and soft robotics. Recently, photothermal effect based LCE actuators have emerged as a promising material with features of biocompatibility, high tissue penetration ability, and the ease and flexibility in materials design. However, to achieve polarized light‐driven LCE actuators, where the polarization can serve as an additional manipulation degree of freedom for actuators manipulation, is still a challenge. Herein, a strategy of constructing a linearly polarization dependent light‐driven soft actuator based on dichroic dye (DD) doped LCEs is demonstrated. Three polarization‐dependent photothermal effect based LCE actuators, including oscillators, bionic dog swinging tail, and light‐mill are experimentally investigated for the first time. The polarization of light is proved to perform as controlling parameter and provides an additional degree of freedom to photothermal effect based light‐driven LCE actuators besides the wavelength and intensity of light. The DD‐doped LCE actuator with good polarization dependence shows great potential applications in soft robotics and biomimetic field.
Partnering With Oppressive Institutions for Social Change: Roles, Ethics, and a Framework for Practicing Accountability
Authors: Javorka McKenzie 
Published: December 2020

AbstractCommunity psychology is driven by the values of social justice, action, and accountability to oppressed groups, with a large body of literature devoted to understanding how to work in partnership with communities through participatory methodologies (e.g., community‐based participatory research, participatory action research). However, some community psychologists may work in partnership with oppressive institutions (e.g., the criminal justice system) in order to transform these institutions toward greater equity and justice. In this conceptual review, I explore the unique challenges and opportunities of partnering with oppressive institutions for social change. First, I define oppressive institutions as those that are hierarchy‐enhancing under social dominance theory and draw on theories of social change to explain when and why we might choose to partner with these institutions in research and action. I then review case studies of the ethical dilemmas community psychologists have faced in such partnerships. Finally, I propose a conceptual framework for practicing accountability when partnering with hierarchy‐enhancing institutions. This framework includes specific practices that research/evaluation teams might incorporate into their relationships with institutional partners and communities impacted by the institution.
Increasing Financial Empowerment among Survivors of Intimate Partner Violence: A Growth Curve Analysis
Authors: Johnson Laura 
Published: December 2020

AbstractFinancial empowerment interventions are often used with survivors of intimate partner violence (IPV) to improve their financial well‐being. However, few evaluations actually measure financial empowerment as an outcome. Thus, the purpose of this study was to develop and test a conceptual model for financial empowerment and then use the model to evaluate the effectiveness of a financial literacy intervention at increasing financial empowerment for survivors. The conceptual model was guided by Christens’ nomological network for psychological empowerment and included four components: emotional, cognitive, relational, and behavioral. The analyses used data from a randomized controlled trial evaluating Moving Ahead, a financial literacy program developed for IPV survivors (n = 449). To determine whether this intervention was effective at increasing financial empowerment for survivors over time, confirmatory factor analyses were run to test for longitudinal measurement invariance, followed by a curve‐of‐factors growth model (CFM) with assignment as a time‐invariant predictor of change. Strict partial longitudinal measurement invariance was achieved and CFM results found assignment to be significantly associated with both initial status (.054,p = .042) and change over time (.114,p = .000). Results suggest that this conceptual model for financial empowerment fit the data well and the intervention was effective.
Effects of oilfield injection water component on rheological characteristics of CTAC/NaSal aqueous solution
Authors: Jing JiaQiang , Yuan Ying , Yin Ran , Zhang Ming , Yin XiaoYun , Liu XueWei 
Published: December 2020

AbstractThe additive drag reduction technology has wide application and high economic value in drag reduction of oilfield water injection system. With CTAC/NaSal (cetyltrimethyl ammonium chloride/sodium salicylate) aqueous solution as the research object, this paper explores the effects of oilfield water component on its rheological characteristics under the experimental condition of 10–60°C, .1–1 000 s−1, and 0.01–0.21 wt %. The experimental results reveal that the oil cannot inhibit the formation of shear‐induced structure in the solution and strengthen the temperature resistance of the solution; NaHCO3 and CaCl2, two types of salts, have similar effects on rheological characteristics of the CTAC/NaSal solution. The solution viscosity increases first and then decreases with the increase of salt concentration. And the viscosity peak gradually moves to the left lower with the increase of temperature, which means that the salt tolerance of the solution decreases with the increase of temperature. Moreover, the Giesekus model has the best performance for describing the rheological characteristics of surfactant solutions. Within the experimental concentration range, the relative error is ±25%.
Influence of fiber orientation, temperature and relative humidity on the long‐term performance of short glass fiber reinforced polyamide 6
Authors: Pastukhov Leonid V. , Kanters Marc J. W. , Engels Tom A. P. , Govaert Leon E. 
Published: December 2020

AbstractAs a result of processing of short fiber reinforced thermoplastics, the fiber orientation varies throughout a product giving rise to a pronounced anisotropic mechanical response. Different flow conditions in a product result in spatial variation in both short‐ and long‐term mechanical properties. In this study, a modeling approach is presented to evaluate the lifetime of short fiber reinforced polyamide 6, both in plasticity‐ and crack growth controlled regions of failure. In the plasticity‐controlled region, a viscoplastic model based on separation of the load angle (by means of Hill's equivalent stress formulation) and time dependence of the yield stress is used in the form of an associative flow rule. The influence of temperature and relative humidity on the magnitude of the plastic flow rate is described by using an apparent temperature approach combined with a Ree‐Eyring formulation. The depression of the glass transition temperature in the polyamide 6 matrix with increasing amount of absorbed moisture was used to predict the anisotropic deformation kinetics in a humid environment. Similar to the plasticity controlled failure, in slow crack growth controlled failure region the effect of temperature, relative humidity, and load angle on the lifetime under a fatigue load is investigated. The apparent temperature approach could also be successfully applied to predict the slow crack growth failure, while the load angle dependence is shown to scale similar to the plasticity‐controlled failure with the Hill's equivalent stress.
Assembly of Water‐soluble AIE‐active Fluorescent Organic Nanoparticles for Ratiometric Detection of Hypochlorite in Living Cells
Authors: Liu Yi‐chen , Du Wei , Liu Guang‐jian , Zhou Wei , Gao Xiao‐jie , Xing Guo‐wen 
Published: December 2020

AbstractHypochlorous acid (HOCl) plays a crucial role in many physiological processes and is widely used as bleach, deodorant and fungicide. In this work, we designed an amphiphilic hydrazone fluorescent molecule THG‐1 containing hydrophilic sugar units and hydrophobic tetraphenylethylene unit for ratiometric detection of HOCl with high sensitivity and excellent selectivity based on HOCl‐triggered hydrolyzation reaction and aggregation‐induced emission (AIE) effect. The detection mechanism was verified by liquid chromatograph mass spectrometry experiments and scanning electron microscope (SEM) tests. Contrast experiments revealed that the numbers of lactose unit and hydrazone linker were essential for assembly of THG‐1 and detection of HOCl. In addition, THG‐1 was successfully used for imaging of exogenous and endogenous HOCl in living cells.
Near‐Infrared‐II Semiconducting Polymer Dots for Deep‐tissue Fluorescence Imaging
Authors: Gupta Nidhi , Chan Yang‐Hsiang , Saha Sampa , Liu Ming‐Ho 
Published: December 2020

AbstractFluorescence imaging, particularly in the NIR‐II region (1000–1700 nm), has become an unprecedented tool for deep‐tissue in vivo imaging. Among the fluorescent nanoprobes, semiconducting polymer nanoparticles (Pdots) appear to be a promising agent because of their tunable optical and photophysical properties, ultrahigh brightness, minimal autofluorescence, narrow‐size distribution, and low cytotoxicity. This review elucidates the recent advances in Pdots for deep‐tissue fluorescence imaging and the facing future translation to clinical use.
Application of Metal‐Organic Frameworks in Adsorptive Removal of Organic Contaminants from Water, Fuel and Air
Authors: Ahmed Imteaz , Mondol Md. Mahmudul Hassan , Lee Hye Jin , Jhung Sung Hwa 
Published: December 2020

AbstractCurrently, our environment is contaminated with various toxic substances. Removal of such hazardous materials from water, air and fuel is important for sustainability. In this minireview, adsorptive removal of organic substances, by using metal‐organic frameworks (MOFs), for our safe environment will be discussed. For example, removal of (i) pharmaceuticals/personal care products, pesticides, and dyes from water; (ii) S‐ or N‐containing compounds from liquid fuel; and (iii) volatile organic compounds from air will be summarized. Moreover, plausible mechanisms to explain the observation will also be discussed. Finally, prospects in the field will be suggested for further research and development.
Feeling right about doing right, even if it was difficult? Emotional and behavioral consequences of conflict during ethical consumer decision‐making
Authors: Becker Daniela 
Published: December 2020

AbstractMany consumer choices nowadays involve ethical considerations (e.g., when buying clothes consumers can often choose between a standard and an ethically produced collection). Previous work has shown that how people feel after such ethically connotated consumer choices is a central determinant of their future ethical consumer behavior. However, most of that research focuses on the effect of choice outcomes (ethical vs. unethical product) on emotional and behavioral reactions. Challenging this outcome‐focused approach, the present paper proposes that the experience of conflict (e.g., between ethical goals vs. self‐interest) during decision‐making has a significant additional effect on emotional reactions and future behavior. Results from one fully powered, preregistered study (N = 383) showed that conflict strength predicted increased negative post‐choice emotions and reduced choice satisfaction. Importantly, this pattern occurred for ethical as well as unethical choice outcomes. Conflict also increased the likelihood of making the opposite choice in a subsequent ethical consumer choice situation—again independent of participants' prior choice. Those results are an important extension of previous work as they highlight the importance of taking experienced conflict into account when predicting post‐choice emotions and future ethical consumer behavior.
Cutaneous leukocytoclastic vasculitis secondary to COVID‐19 infection: A case report
Authors: Iraji Fariba , Galehdari Hamid , Siadat Amir Hossein , Bokaei Jazi Safoura 
Published: December 2020

AbstractCOVID‐19 is a novel disease that mostly affects the respiratory system but as the number of cases is rising significantly around the world, more extra‐respiratory manifestations are being reported among which are various dermatologic manifestations.
The curious case of HLA‐DR‐positive APL
Authors: Devi Kanta , Ali Natasha 
Published: December 2020

AbstractThe triad of weak/absent CD34, negative HLA‐DR expression, and positivity to CD117 is pathognomonic for the diagnosis of acute promyelocytic leukemia. However, in rare cases, strong positivity to HLD‐DR and CD34 may be noted.
Separation of Nano‐scaled Particles by Flocculation
Authors: Yeap Swee Pin , Sum Jing Yao , Toh Pey Yi 
Published: December 2020

AbstractOwing to the increased application of nanoparticles in engineering industries, the development of separation techniques to isolate nanoparticles grew as important as the one to isolate micro‐ or macro‐sized particles. Centrifugation, filtration, and precipitation are the common processes used to separate nanoparticles from a suspension. Interestingly, these processes work best if the nanoparticles are preflocculated into a larger cluster. Flocculation of nanoparticles may involve a complex mechanism affected by the physicochemical and molecular properties of the flocculant. A review of the effects induced by these factors on the flocculation of nanoparticles is given. The applications of advanced flocculation approaches as well as the research gaps in this research area are discussed.
A Water‐Splitting System with a Cobalt (II,III) Oxide Co‐Catalyst‐Loaded Bismuth Vanadate Photoanode Along with an Organo‐Photocathode
Authors: Murakami Takahiro , Ikezoi Kosuke , Nagai Keiji , Kato Hideki , Abe Toshiyuki 
Published: December 2020

AbstractIn the water‐splitting reaction, the oxidation of water to O2 is considered to be a kinetically demanding process, so that a co‐catalyst has been usually applied to promote water oxidation. This work demonstrates that, when loading mixed‐valence cobalt (II,III) oxide (Co3O4) dispersed in a Nafion membrane (Nf) on a nanoporous bismuth vanadate (BiVO4) photoanode (i. e., BiVO4/Nf[Co3O4]), stable and efficient water oxidation occurred. In particular, it is noteworthy that the BiVO4/Nf[Co3O4] photoanode exhibited stable performance even in an acidic medium (pH=2). In the present system consisting of a BiVO4/Nf[Co3O4] photoanode along with an organo‐photocathode, the stoichiometric formation of O2 and H2 successfully occurred by applying just 0.1 V between the photoelectrodes (cf. maximum efficiency, ca. 0.2 %), which was superior to the prototype comprising BiVO4 and Pt counter electrode. The Co3O4 loading can effectively suppress the collapse of the nanostructured BiVO4 upon photocorrosion, resulting in the stable and kinetically efficient consumption of holes in BiVO4.
On using kernel integration by graphical LASSO to study partial correlations between heterogeneous data sets
Authors: Nørgaard Sarah Kristine , Linder‐Steinlein Kristoffer , Eliasen Anders Ulrik , Stokholm Jakob , Chawes Bo L. , Bønnelykke Klaus , Bisggard Hans , Smilde Age K. , Rasmussen Morten Arendt 
Published: December 2020

AbstractIntegration of unstructured and very diverse data is often required for a deeper understanding of the complex biological systems. In order to uncover communalities between heterogeneous data, the data are often harmonized by constructing a kernel and perform numerical integration. In this study, we propose a method for data integration in the framework of an undirected graphical model, where the nodes represent individual data sources of varying nature in terms of complexity and underlying distribution and where the edges represent the partial correlations between two blocks of data. We propose a modified GLASSO for estimation of the graph, with a combination of cross‐validation and extended Bayes Information Criterion for sparsity tuning. Furthermore, hierarchical clustering on the weighted consensus kernels from a fixed network is used to partitioning the samples into different classes. Simulations show increasing ability to uncover true edges with increasing sample size andsignal to noise. Likewise, identification of nonexisting edges towards disconnected nodes is feasible. The framework is demonstrated for integration of longitudinal symptom burden data, from the second and third year of life, combined with 21 diseases precursors and information of the development of asthma and eczema at the age of 6 years, from 403 children from the COPSAC2010 mother‐child cohort. This suggests that maternal predisposition as well as being born preterm indirectly lead to a higher risk of asthma via an increased respiratory symptom burden.