bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Messaging Kettle: It’s IoTea time
Authors: Soro Alessandro , Brereton Margot , Roe Paul 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>It’s time to consider people in designing the Internet of Things (IoT). We demonstrate a working prototype of a Messaging Kettle. It is designed to facilitate asynchronous communication and enable a sense of presence between adult children and their older parents living remotely from them through the familiar comfort routine of boiling the kettle to make a cup of tea. Our goal is to offer a human centred critique of the Internet of Things, which has largely been conceived without consideration of the people who will use the things, and rather has traditionally moved from a technology oriented perspective. In the case of smart homes this approach has produced a wide array of projects focused on monitoring the habits of the elderly, recognizing anomalies and alerting the caregivers. In contrast we propose to focus on engagement and reciprocity, building on the rituals associated with habitually used and cherished objects. We conclude by revisiting the technology-oriented framework for the Internet of Things to include our observations on people’s perspectives on smart communicating objects. </span></p></div></div></div>
Researching for Change in a Globalising Asymmetric World
Authors: Blake Edwin , Büskens Ineke , Dearden Andy 
Published: October 2015

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>The field of research on Information and Communication Technology (ICT) in the service of social development (ICTD) is ripe for reframing. The asymmetries of the world are currently mirrored in the aims, practice and outcomes of too much ICTD research. The consequence is that people who might benefit from creative use of current and emerging technologies all over the world are excluded from the social processes and benefits of innovation and knowledge production. The ICTD research community’s widespread dissatisfaction with this situation haunts ICTD gatherings. </span></p><p><span>In this workshop we want to explore critical alternatives to the current practice. We intend drafting and articulating critical alternatives for future research that is emancipatory, inclusive and oriented towards globally sustainable futures. </span></p><p><span>To achieve this we first want to acknowledge and expose the vastly different knowledge interests and agendas of the various stakeholders. By examining a series of questions we shall then strive for a responsive reformulation of our approaches in a way that will not easily settle into a new orthodoxy. This will mean that we need to examine not only research and action agendas, transformation, inclusiveness, and power relations, but also our own personal growth and care for ourselves as actors in transformation. </span></p><p><span>It is fortuitous that the 5</span><span>th </span><span>decennial Aarhus conference comes on the target date for the achievement of the United Nations Millennium Development Goals. What next? We want to ensure that after 2015, the research approaches that are adopted and promoted in ICTD are actually structured </span>in the service of development. An ICT that is for Development cannot be realised by blindly replicating global asymmetries where aims and approaches are defined by the powerful and imposed on those at the margins. </p></div></div></div>
Finite‐time H∞ filtering for Markov jump systems with partially unknown transition rates
Authors: Zhou Juan , Ai Xinru 
Published: August 2024

SummaryThe thesis studies a stochastic finite‐time bounded (SFTB) filter design method for time‐varying delay Markov jump systems (MJSs) with partially unknown transition rates. First, a Lyapunov–Krasovskii functional with triple integral is built, the free weight matrix is added for lowering the conservatism. And the condition of SFTB of the error system is analyzed. Then, according to linear matrix inequalities (LMIs), a new filter design method is presented. Moreover, the dimension of the filter obtained is free, and the filter ensures that the error system is SFTB. Finally, the validity and effectiveness of the conclusion of this paper are demonstrated by simulation examples.
Nanosecond Phase‐Transition Dynamics in Elemental Tellurium
Authors: Sun Yuting , Li Bowen , Yang Tieying , Yang Qun , Yu Haibin , Gotoh Tamihiro , Shi Chenyi , Shen Jiabin , Zhou Peng , Elliott Stephen R. , Li Huanglong , Song Zhitang , Zhu Min 
Published: August 2024

AbstractElemental tellurium, a prototypical one‐dimensional van der Waals material, has recently been found to crystallize quickly from the liquid on a nanosecond timescale, yet the inherent mechanism is not clear. Here, by combining in situ high‐energy synchrotron radiation X‐ray diffraction with ab initio molecular‐dynamics simulation, it is found that trigonal crystalline Te completely melts into the liquid phase at 450 °C, and recrystallizes into the trigonal phase for temperatures lower than 380 °C without the formation of any other phase. This directly confirms the recent proposal of a crystal‐liquid‐crystal phase transition in this material underlying the observed electrical‐switching process. Atomic‐scale, melt‐quench computer simulations show that liquid Te is capable of crystallizing within a time of 25 ps in the vicinity of templating crystallization interfaces. This ultrafast crystallization ability of Te can be understood as being due to delayed Peierls distortions during a quench and therefore a high atomic mobility over a wide range of temperature. This finding opens the way to develop a crystal‐liquid‐crystal, phase‐transition‐based selector switch with an ultrafast switching speed.
Engineering the Template Layer for Silicon Phthalocyanine‐Based Organic Thin Film Transistors
Authors: Ewenike Raluchukwu B. , Lin Zheng Sonia , Cranston Rosemary R. , Lamontagne Halynne R. , Shuhendler Adam J. , Kim Chang‐Hyun , Brusso Jaclyn L. , Lessard Benoît H. 
Published: August 2024

AbstractMulti‐phenyl and multi‐thiophene rod‐like molecules are typically used for weak epitaxial growth (WEG) of highly ordered organic semiconductor films enabling controllable microstructure properties and improved device performance. However, very few templating molecules have been reported, making it challenging to establish structure‐property relationships. As semiconductors are integrated into organic thin film transistors (OTFTs), the impact of templating layers on semiconductor microstructure and device performance must be established. Herein, four aromatic molecules with similar structure to para‐sexiphenyl (p‐6P) are synthesized and incorporated as the template layer in bis (pentafluoro phenoxy) silicon phthalocyanine (F10‐SiPc) OTFTs. The use of fluorinated p‐6P (p‐6PF) yields devices with the highest electron field‐effect mobility of 0.14 cm2 V−1 s−1 while a partially fluorinated p‐6P (p‐6PF4) results in improved threshold voltage. X‐ray diffraction (XRD) demonstrates varying F10‐SiPc crystallinity with choice of templating layer with the most crystalline films resulting from the use of p‐6PF. By grazing incidence wide angle X‐ray scattering (GIWAXS) and polarized Raman microscopy, all templating layers yield films with F10‐SiPc molecules predominantly aligned face‐on to the substrate. However, rod‐like p‐6P derivatives increased the face‐on orientation of F10‐SiPc. This study highlights the importance of template layer selection and deposition optimization in WEG‐based OTFTs.
Synaptic Behavior of Iodine‐Enriched Copper‐Based Perovskite Memristors Developed Through a Sustainable Solution Approach
Authors: Dutta Subhajit , Panchanan Swagata , Yoo Jung Hyeon , Kumar Surjeet , Yoo Ho Chan , Seok Sang Il , Dastgeer Ghulam , Yoon Dae Ho 
Published: August 2024

AbstractThe advancement of digital technology has spurred the proliferation of data, creating a pressing need for efficient storage solutions. In this regard, memristors have emerged as promising contenders as next‐generation non‐volatile memory, offering superior electrical capabilities. Among memristor materials, lead halide perovskites have garnered significant interest due to their tuneable properties, facile synthesis methods, and remarkable resistive switching (RS) performance. However, concerns over environmental toxicity and stability remain. This issue has been addressed by switching to copper (Cu) based perovskites that exhibit wide bandgap semiconducting properties with zero toxicity and long‐term stability. In this manuscript, a novel approach is investigated to achieve iodine‐enriched Cs–Cu–I perovskite thin films for memristor applications. Through strategic functionalization of synthesis processes, superior optoelectronic properties are achieved in the thin films. This modified Cs–Cu–I based memristor (CCI device) exhibits excellent RS behavior at a low operating voltage of 0.7 V, with a long retention period of 4 × 103 s and very low power consumption of 2 × 10−9 W. The experimental realization of the synaptic behavior from the modified CCI device is demonstrated through its spike‐rate‐dependent plasticity (SRDP) behavior. The device response to short‐ and long‐term pulses experimentally verifies the Atkinson and Shiffrin psychological model for training the human brain. This work not only highlights the potential of the modified CCI devices for RRAM but also paves the way for improved lead‐free perovskite‐based neuromorphic devices for biological applications.
In2S3/MXene‐Gated Organic Photoelectrochemical Transistor With Target‐Induced Dipedal DNA Walker Modulation for DBP Biosensing
Authors: Zhang Haowei , Zhou Yunlei , Zhang Miao , Cao Yaoyuan , Yin Huanshun , Ai Shiyun 
Published: August 2024

AbstractOrganic photoelectrochemical transistor (OPECT) biosensor have become an advanced bioanalytical technology due to their superior performance. In this work, a novel target‐induced bipedal DNA walker‐mediated and In2S3/Ti3C2 (MXene) Schottky junction‐gated OPECT aptasensor is developed. The DNA walker is activated by recognition between the aptamer and the target, and then moved along a predetermined orbital interface, realizing the integration of target recognition and signal amplification detection, thus obtaining higher detection sensitivity and shorter detection duration. To validate the innovative nature of OPECT bioassays, signals are obtained on OPECT‐specific detection of dibutyl phthalate (DBP) as a target molecule through alkaline phosphatase ‐mediated ascorbic acid (AA) enrichment at the In2S3/MXene photosensitive gate. AA enrichment effectively depleted holes and enhanced the photoelectric response by inhibiting electron‐hole pair complexation, realizing effective modulation of the organic semiconductor poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate). The presented OPECT aptasensor achieved sensitive detection of DBP and provided a low detection limit of 0.18 fM based on the homogeneous, well‐integrated nature of aptamer recognition. Considering the detection of different toxicant molecules, it is expected to serve as a generalized tool with excellent performance.
Development of D–A–D‐Type NIR‐II Photothermal Agents for Synergistic Eradication of Multidrug‐Resistant Bacteria and Promoting Diabetic Wound Healing
Authors: Liu Ji , Wang Yuxin , Gao Weijie , Cao Mingyi , Bian Haojun , Wang Shiya , Gui Lijuan , Zhao Changhui , Gu Yueqing , Zhong Qifeng , Zheng Jinrong , Zhang Li , Yuan Zhenwei 
Published: August 2024

AbstractThe challenge in treating diabetic foot infections caused by drug‐resistant bacteria is rapidly eradicating bacteria and accelerating wound healing. NIR‐II‐induced photothermal therapy (PTT) offers notable advantages over conventional treatments, such as broad‐spectrum bactericidal efficacy, better penetration depth in biological tissues, and higher skin tolerance thresholds, making it particularly suitable for addressing diabetic foot infections. Herein, it is found that NIR‐II dye IR26 exhibited good photothermal effects but poor photothermal stability. By modifying IR26 with methoxy and triphenylamine groups, a novel D–A–D‐type NIR‐II small molecule photothermal agent (IRC) is developed, with high photothermal stability and photothermal conversion efficiency (44.3%). IRC exhibited a maximum absorption wavelength of 1166 nm and a maximum emission wavelength of 1238 nm. However, PTT alone cannot effectively promote diabetic wound healing. Therefore, a novel nanoplatforms (Cur‐IRC@PCM) are developed by coloading IRC and curcumin, a natural wound–healing compound, into thermosensitive liposomes to treat MRSA‐infected diabetic wounds. Under 980 nm laser irradiation, Cur‐IRC@PCM provided PTT and controlled the precise release of curcumin, effectively synergizing to eradicate drug‐resistant bacteria and accelerate wound closure. The intelligent antibacterial nanoplatforms Cur‐IRC@PCM also exhibits excellent biocompatibility, rendering it a promising therapeutic tool in biomedical fields for combating drug‐resistant bacterial infections.
Unveiling Contact‐Electrification Effect on Interfacial Water Oscillation
Authors: Tang Zhen , Lin Shiquan , Wang Zhong Lin 
Published: August 2024

AbstractWater is crucial for various physicochemical processes at the liquid–solid interfaces. In particular, the interfacial water, mediating the electric field and solvation effect along with the solid, corporately determine the electrochemical properties. Understanding the interaction between solid properties and the interface water holds significant importance in interfacial dynamics. However, the impact of alterations in the charged state of solid surfaces induced by contact electrification on interfacial water remains unknown. Here, the evolution of atomic‐level resolution maps of hydration layers are reported on charged surfaces using 3D atomic force microscopy (3D‐AFM). These findings demonstrate that electrostatic interactions can reinforce, distort, or collapse the characteristic structure of hydration layers. More importantly, these interactions exhibit interlayer differences and sample specificity in hydration layer structures of different substrates. In addition, similar oscillations of the hydration layer are observed at the electrochemical interface under different voltage biases. This suggests that contact‐electrification has the potential to serve as a novel method for manipulating and regulating chemical reactions at the interface.
Hole Polaron‐Mediated Suppression of Electron–Hole Recombination Triggers Efficient Photocatalytic Nitrogen Fixation
Authors: Li Huiyi , Chen Renli , Sun Liang , Wang Yanru , Liu Qilong , Zhang Qun , Xiao Chong , Xie Yi 
Published: August 2024

AbstractIn the pursuit of successful photocatalytic transformations, challenges persist due to limitations in charge carrier utilization and transfer efficiency, which stemming from rapid recombination. Overcoming these limitations necessitates the exploration of novel mechanisms that enhance the effective separation of photogenerated electron–hole pairs. Herein, deviating from the conventional approach of enhancing carrier migration to separate photogenerated charges and extend their lifetime, the proposal is to directly prevent the recombination of photogenerated electrons and holes by forming hole polarons. Specifically, disordered pores are introduced on the surface of KTaO3 ultrathin sheets, and the clear‐cut evidences in electron paramagnetic resonance, photoluminescence, and ultrafast spectroscopy unambiguously confirm the enhanced carrier–phonon coupling, which results in the formation of hole polarons to impede the recombination of photogenerated electron–hole pairs. Taking the challenging nitrogen oxidation reaction as an example, it is found that the hole polarons in atomic‐disordered pore KTaO3 ultrathin nanosheets trigger outstanding photo‐oxidation performance of nitrogen (N2)to nitrate, with a nitrate‐producing rate of 2.1 mg g−1 h−1. This scenario is undoubtedly applicable to a wide variety of photocatalytic reactions due to the common challenge of charge carrier recombination in all photocatalytic processes, manifesting broad implications for promoting photocatalysis performance.
One‐Dimensional Single‐Crystal Mesoporous TiO2 Supported CuW6O24 Clusters as Photocatalytic Cascade Nanoreactor for Boosting Reduction of CO2 to CH4
Authors: Zhang Jiaming , Shi Duoxin , Yang Junyu , Duan Linlin , Zhang Pengfei , Gao Mingbin , He Jinlu , Gu Yulan , Lan Kun , Zhang Jiangwei , Liu Jian , Zhao Dongyuan , Ma Yuzhu 
Published: August 2024

AbstractConstructing nanoreactors with multiple active sites in well‐defined crystalline mesoporous frameworks is an effective strategy for tailoring photocatalysts to address the challenging of CO2 reduction. Herein, one‐dimensional (1‐D) mesoporous single‐crystal TiO2 nanorod (MS‐TiO2‐NRs, ≈110 nm in length, high surface area of 117 m2 g−1, and uniform mesopores of ≈7.0 nm) based nanoreactors are prepared via a droplet interface directed‐assembly strategy under mild condition. By regulating the interfacial energy, the 1‐D mesoporous single‐crystal TiO2 can be further tuned to polycrystalline fan‐ and flower‐like morphologies with different oxygen vacancies (Ov). The integration of single‐crystal nature and mesopores with exposed oxygen vacancies make the rod‐like TiO2 nanoreactors exhibit a high‐photocatalytic CO2 reduction selectivity to CO (95.1%). Furthermore, photocatalytic cascade nanoreactors by in situ incorporation of CuW6O24 (W–Cu) clusters onto MS‐TiO2‐NRs via Ov are designed and synthesized, which improved the CO2 adsorption capacity and achieved two‐step CO2–CO–CH4 photoreduction. The second step CO‐to‐CH4 reaction induced by W–Cu sites ensures a high generation rate of CH4 (420.4 µmol g−1 h−1), along with an enhanced CH4 selectivity (≈94.3% electron selectivity). This research provides a platform for the design of mesoporous single‐crystal materials, which potentially extends to a range of functional ceramics and semiconductors for various applications.
Enhancing Electrical Conductivity in Cellulosic Fabric: A Study of Bio‐Based Coating Formulations
Authors: Abdi Babak , Baniasadi Hossein , Tarhini Ali , Tehrani‐Bagha Ali 
Published: August 2024

AbstractThis study explores the development of electrically conductive bio‐based textiles by investigating the fabrication and structural characterization of multi‐walled carbon nanotubes (MWCNT) and graphene nanoplatelets (GNP) coatings on viscose fabric (VF) using two bio‐based binders. The research employs various analytical techniques, including Fourier transform infrared (FTIR) analysis, water contact angle (WCA) measurements, optical microscopy, air permeability tests, field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), mechanical property evaluations, and electrical conductivity tests. Optimization of the coating process revealed that a binder concentration of 20 g L−1 combined with six dip‐dry cycles offered the optimal balance of conductivity, water contact angle (WCA), and coating uniformity. The study found distinct correlations between binder type and properties such as WCA, air permeability, surface coverage, and thermal stability. The incorporation of carbon‐based materials significantly enhanced the electrical conductivity of the samples, with MWCNT‐coated fabrics demonstrating higher conductivity compared to those coated with GNP. Furthermore, the inclusion of a hot‐pressing step further improved the electrical conductivity. MWCNT‐coated fabrics exhibited excellent electrical heating properties, generating temperatures up to 130 °C with a 10 V DC voltage. These findings advance the field of e‐textiles, presenting straightforward, bio‐based methods for creating highly conductive textiles with good mechanical properties and thermal stability.
High‐Performance Dedicated Snares with Tip Attachments can Overcome Current Disadvantages in Cold Snare Polypectomy
Authors: Hirose Ryohei , Yoshida Naohisa , Yoshida Takuma , Mukai Hiroki , Yamauchi Katsuma , Miyazaki Hajime , Watanabe Naoto , Bandou Risa , Inoue Ken , Dohi Osamu , Inagaki Yoshikazu , Inada Yutaka , Murakami Takaaki , Yanagisawa Akio , Ikegaya Hiroshi , Nakaya Takaaki , Itoh Yoshito 
Published: August 2024

AbstractCold snare polypectomy (CSP) has the disadvantage of a lower histopathological complete resection rate (HCRR) because blunt resection using CSP‐dedicated snares (DSs) causes mucosal retraction into the sheath during capture/resection. In this study, attachments are designed to narrow the sheath tip's inner diameter from 1.8 to 1.3‒1.1 mm to prevent mucosal retraction. Eight prototype snares with different component characteristics are combined with these attachments. Additionally, product version DS with attachment (Smart Snare Cold) and existing DSs, such as Exacto Cold Snare, are prepared. For snare performance evaluation, the force required to resect (FRR) human colonic mucosa, mucosal retraction amount (MRA), and clinical data are obtained. The attachments that narrowed the inner diameter to 1.3 or 1.1 mm reduce the FRR to 74.9%−93.8% and 68.0%−84.9%, respectively, and reduce the MRA to 21.0%−35.3% and 15.1%−26.8%, respectively. Thus, the reduced inner diameter improves resection ability and prevents mucosal retraction. The clinical findings show that Smart Snare Cold has significantly higher muscularis mucosa resection rates and HCRRs than Exacto Cold Snare (P < 0.001 and P = 0.003, respectively). Thus, the novel DS with tip attachment improves the HCRR and overcomes the current CSP disadvantage by simultaneously improving resection ability and preventing mucosal retraction.
Hybridization of Long‐Range and Short‐Range Charger Transfer Enables Efficient Thermally Activated Delayed Fluorescent and Hyperfluorescent OLEDs
Authors: Meng Yuan , Chen Guohao , Peng Hao , Miao Jingsheng , Liu He , Yang Chuluo 
Published: August 2024

AbstractExploring possible strategy to balance the radiative decay and reverse intersystem crossing (RISC) are of great significance in thermally activated delayed fluorescent (TADF) emitters for enabling both high efficiency and low efficiency roll‐off. Herein, by introducing a multi‐resonance (MR) type acceptor, two TADF emitters featuring hybridized short‐range charge transfer (SRCT) and long‐rang charge transfer (LRCT) are designed. LRCT‐dominate photoluminescent nature is maintained with a short delayed lifetime of 1.5–3.4 µs. While the incorporated SRCT accelerates the radiative decay. Consequently, both emitters demonstrate remarkable electroluminescent performance with maximum EQE (EQEmax) of 40.8% for IT‐BO and 39.0% for IA‐BO, respectively, along with ultra‐high luminance of up to 120 000 cd m−2. More encouragingly, both emitters can enable small efficiency roll‐off with a minimum value of only 4%, highlighting the significance of enhanced kr in suppressing the roll‐off. Moreover, when served as sensitizers, both compounds can also endow excellent performances with EQEmax ≈38%. This work presents an innovative approach by hybridizing SRCT and LRCT for developing practical TADF emitters.