bluuebunny/crossref_metadata_2025_split huggingface dataset:
Necesidades en familiares de pacientes críticos de una institución de IV nivel en Montería, Colombia
Authors: Herrera Herrera Jorge Luis , Llorente Pérez Yolima Judith , Suarez Mendoza Sadith José , Oyola López Edinson 
Published: March 2021

Objetivo: Determinar las necesidades en familiares de pacientes críticos de una institución de IV nivel en Montería, Colombia.Metodología: Investigación descriptiva, transversal con enfoque cuantitativo. Para la recolección de la información se aplicó el Cuestionario de Necesidades de los Familiares de Pacientes de Cuidados Intensivos y una cédula de datos sociodemográficos.Resultados: Las necesidades que se determinaron fueron la información sincera respecto al estado y progreso del paciente y recibir explicación del equipamiento que está utilizándose. La dimensión que presentó mayores necesidades fue la de comunicación.Conclusiones: El familiar de una persona ingresada en un servicio de cuidado intensivo debe ser tomado en cuenta en el proceso de atención.
Objective: To determine the needs in relatives of critically ill patients of an IV level institution in Montería, Colombia.Methodology: Descriptive, cross-sectional research with a quantitative approach. For the collection of information, the Questionnaire of Needs of the Relatives of Intensive Care Patients and a sociodemographic data card were applied.Results: The needs that were determined were honest information regarding the state and progress of the patient and receive an explanation of the equipment being used. The dimension that presented the greatest needs was that of communication.Conclusions: The family of a person admitted to an intensive care service should be taken into account in the care process.
Les mineurs non accompagnés : des destins individuels qui interrogent le politique
Authors: Radjack Rahmeth , Touhami Fatima , El Husseini Mayssa , Bernichi Asmaa , Mouchenik Yoram , Minassian Sevan , Moro Marie Rose 
Published: March 2021

ObjectifsÀ travers la description et la discussion d’une situation d’un jeune isolé étranger d’origine marocaine venu seul en France à 17 ans, nous transmettons des éléments de compréhension et des outils transculturels pour faciliter l’émergence d’un récit et d’un lien de confiance avec les professionnels qui l’accompagnent. Une créativité s’impose dans la prise en charge des jeunes isolés étrangers, car la famille est à distance, et les obstacles à la mise en place d’un lien de confiance dans l’accompagnement éducatif sont nombreux (liés aux expériences du passé et aux traumatismes psychiques).MéthodeNous décrivons un dispositif d’accueil transculturel adapté à ces jeunes, qui se base sur le principe de narrativité en utilisant divers supports de narration et de médiation (objets,circle test, médiateurs-interprètes, propositions transculturelles). Nous favorisons ainsi l’émergence d’un récit biographique initialement difficile d’accès face au statut particulier de la parole dans ce contexte.RésultatsLa discussion se fait sous 3 angles : anthropologique avec un éclairage sur la situation spécifique des harraga qui sont des jeunes en errance à la fois psychique et physique, l’angle politique, et la clinique du psychotraumatisme. Sur le plan du travail éducatif, la mise en valeur et l’approfondissement des compétences transculturelles des professionnels permettent de pallier un sentiment d’épuisement ou d’échec, et à terme, mieux accompagner ces jeunes. Les modalités d’accueil et nos manières de les soigner interrogent notre relation à l’autre, à nous-mêmes, au lien social et au politique.ConclusionUne approche transculturelle peut aider le jeune à renouer un processus de construction identitaire loin de ses repères, en pleine période d’adolescence. Cela suppose de retrouver une cohérence dans le parcours des jeunes malgré la rupture de la migration, souvent réactivée par de nouvelles séparations lors des changements réguliers de lieux de vie. Les jeunes isolés étrangers ont la possibilité, dans le cadre de ce dispositif, de montrer une juste représentation d’eux-mêmes, d’élaborer des récits qui échappent aux représentations préconçues liées à leur statut et de construire leurs destins individuels.
Estimating the national and regional prevalence of drinking or eating more than usual during childhood diarrhea in Malawi using the bivariate sample selection copula regression
Authors: Ngwira Alfred , Chamera Francisco , Soko Matrina Mpeketula 
Published: March 2021

Background
Estimation of prevalence of feeding practices during diarrhea using conventional imputation methods may be biased as these methods apply to observed factors and in this study, feeding practice status was unobserved for those without diarrhea. The study aimed at re-estimating the prevalence of feeding practices using the bivariate sample selection model.

Methods
The study used 2015–2016 Malawi demographic health survey (MDHS) data which had 16,246 children records who had diarrhea or not. A bivariate Joe copula regression model with 90 degrees rotation was fitted to either drinking or eating more, with diarrhea as a sample selection outcome in the bivariate models. The prevalence of drinking more than usual and prevalence of eating more than usual were then estimated based on the fitted bivariate model. These prevalences were then compared to the prevalences estimated using the conventional imputation method.

Results
There was a substantial increase in the re-estimated national prevalence of drinking more fluids (40.0%, 95% CI [31.7–50.5]) or prevalence of eating more food (20.46%, 95% CI [9.87–38.55]) using the bivariate model as compared to the prevalences estimated by the conventional imputation method, that is, (28.9%, 95% CI [27.0–30.7]) and (13.1%, 95% CI [12.0–15.0]) respectively. The maps of the regional prevalences showed similar results where the prevalences estimated by the bivariate model were relatively higher than those estimated by the standard imputation method. The presence of diarrhea was somehow weakly negatively correlated with either drinking more fluids or eating more food.

Conclusion
The estimation of prevalence of drinking more fluids or eating more food during diarrhea should use bivariate modelling to model sample selection variable so as to minimize bias. The observed negative correlation between diarrhea presence and feeding practices implies that mothers should be encouraged to let their children drink more fluids or eat more food during diarrhea episode to avoid dehydration and malnutrition.
Delamination and Wrinkling of Flexible Conductive Polymer Thin Films
Authors: Xie Kaili , Glasser Alizée , Shinde Shekhar , Zhang Zaicheng , Rampnoux Jean‐Michel , Maali Abdelhamid , Cloutet Eric , Hadziioannou Georges , Kellay Hamid 
Published: March 2021

AbstractPolymer based conductive and transparent thin films are an important class of functional materials at the heart of flexible organic electronic devices. These flexible films are prone to degradation and to mechanical instability leading to the formation of blisters, wrinkles, and cracks. This is detrimental to their use especially in the case of multilayer devices. Here, it is shown that a simple water or solvent drop deposited on such films gives rise to a buckling instability and the formation of several folds due to the tendency of these films to swell in contact with the solvent. A phase diagram of the instability portraying its domain of existence, and thus the means to inhibit it, is proposed. By depositing drops on such films and observing the instability, material parameters such as the elastic modulus of the thin films or their energy of adhesion to the substrate can be estimated reliably. Further, the instability can be harnessed to pattern surfaces at low cost giving rise to percolated and more conductive pathways in the conductive polymer films under scrutiny.
Snake‐Inspired, Nano‐Stepped Surface with Tunable Frictional Anisotropy Made from a Shape‐Memory Polymer for Unidirectional Transport of Microparticles
Authors: Wu Weibin , Guttmann Markus , Schneider Marc , Thelen Richard , Worgull Matthias , Gomard Guillaume , Hölscher Hendrik 
Published: March 2021

AbstractThe ventral scales of many snake species are decorated with oriented micro‐fibril structures featuring nano‐steps to achieve anisotropic friction for efficient locomotion. Here, a nano‐stepped surface with tunable frictional anisotropy inspired by this natural structure is presented. It is fabricated by replicating the micro‐fibril structure of the ventral scales of the Chinese cobra (Naja atra) into a thermo‐responsive shape‐memory polymer via hot embossing. The resulting smart surface transfers from a flat topography to a predefined structure of nano‐steps upon heating. During this recovery process, the nano‐steps grow out of the surfaces resulting in a surface with frictional anisotropy, which is characterized in situ by an atomic force microscopy. The desired frictional anisotropy can be customized by stopping the heating process before full recovery. The nano‐stepped surface is employed for the unidirectional transport of microscale particles through small random vibrations. Due to the frictional anisotropy, the microspheres drift unidirectionally (down the nano‐steps). Finally, dry self‐cleaning is demonstrated by the transportation of a pile of microparticles.
Evaporation‐Free Organic Solar Cells with High Efficiency Enabled by Dry and Nonimmersive Sintering Strategy
Authors: He Xinjun , Wang Yong , Zhang Lifu , Zhang Ruijia , Kim Jinwook , Wong Kam Sing , Chen Yiwang , Choy Wallace C. H. 
Published: March 2021

AbstractA solution‐processed top electrode is critical to unlock the full potential of all‐solution‐processed organic solar cells (OSCs) for practical applications. However, the enabled devices suffer from low efficiency (<12%) mainly because of the irreversible damages induced by the top‐electrode deposition process. Herein, a strategy of dry and nonimmersive sintering is demonstrated by introducing a hydrogen‐intercalated molybdenum oxide layer to sinter isolated Ag nanoparticles into the top electrode (all from solution process) with little influences/issues on underlying device structures. Fundamentally, it is unveiled that the intercalated hydrogen will bond with the amino group of the ligands around Ag nanoparticles, which promotes the exposed nanoparticles to merge along a certain crystal orientation (≈45°) and form a conductive electrode (8.6 Ω sq−1). Importantly, the sintered electrode offers 70% optical reflection in the 700–1050 nm wavelength region, which is essential to enhance the light absorption of high‐performance nonfullerene acceptors. Consequently, a record efficiency of 15% is achieved, driving all‐solution processed OSCs toward commercial applications.
Deoxyribonucleic Acid Photonic Wires with Three Primary Color Emissions for Information Encryption
Authors: Yang Fei Fan , Li Chun Hong , Lv Wen Yi , Zhen Shu Jun , Huang Cheng Zhi 
Published: March 2021

AbstractDNA photonic wires (PWs) are a new type of photon delivery nanodevice and have attracted wide attention due to their excellent photon delivery ability via Förster resonance energy transfer (FRET) but are dramatically challenged in real applications. In this study, 7‐amino‐4‐methyl‐3‐coumarinylacetic acid is used as a donor, Texas Red is used as an acceptor, and acridine orange is used as a bridge to intercalate DNA to facilitate the homo‐FRET process, which leads to DNA PWs with high‐energy transfer efficiencies (≈0.9). Notably, the newly developed DNA PWs exhibit characteristic emissions in the three primary colors, which are successively adjusted by simply changing the extent of FRET to make over 36 subtypes of fluorescence emissions. This polychroism is further applied for information encryption with high efficiency, which is a new application for DNA PWs.
Tumor Microenvironment Triggered Cascade‐Activation Nanoplatform for Synergistic and Precise Treatment of Hepatocellular Carcinoma
Authors: Xin Fuli , Wu Ming , Cai Zhixiong , Zhang Xiaolong , Wei Zuwu , Liu Xiaolong , Liu Jingfeng 
Published: March 2021

AbstractHepatocellular carcinoma (HCC) is one of the most common and deadliest malignancy cancers, which remains a major global health problem. At present, over 50% of patients with HCC have implemented systemic therapies, such as interventional therapy or local chemotherapy that are scarcely effective and induce serious side effects to the remaining normal liver, further limiting their clinical outcomes. Herein, a tumor microenvironment triggered cascade‐activation nanoplatform (A‐NPLap/TPZ) is prepared based on β‐lapachone (β‐Lap) and tirapazamine (TPZ) for the synergistic therapy of HCC. The A‐NPLap/TPZ exerts its targeting effect by binding to the receptor of tumor cells with an external aptamer. In the tumor microenvironment, the nanoplatform can realize H2O2‐triggered disassembly to release β‐Lap and TPZ. The released β‐Lap generates ROS to induce tumor cell apoptosis under the catalysis of the tumor cell over‐expressed NAD(P)H‐quinone oxidoreductase‐1 (NQO1) enzyme. In this process, oxygen is consumed to intensify tumor hypoxia, and eventually cascade activates TPZ to exert the anti‐tumor effect. The studies in vitro and in vivo consistently demonstrate that the as‐prepared A‐NPLap/TPZ nanoplatform possesses an excellent synergistic anti‐tumor effect. This design of nanoplatform with cascade activation effect provides a promising strategy for HCC treatment.
Ultrasensitive Chemodynamic Therapy: Bimetallic Peroxide Triggers High pH‐Activated, Synergistic Effect/H2O2 Self‐Supply‐Mediated Cascade Fenton Chemistry
Authors: Zhou Hao , Li Xiaowei , Niu Dechao , Li Yongsheng , Liu Xiaohang , Li Chengfeng , Si Weimeng , Cao Jun , Song Yuanda , Wen Guangwu , Niu Zhihui , Zhang Lijuan 
Published: March 2021

AbstractRecently, nanoparticle‐triggered in situ catalytic Fenton/Fenton‐like reaction is widely explored for tumor‐specific chemodynamic therapy (CDT). However, despite the great potential of CDT in tumor treatment, insensitive response to the relatively high pH of the tumor sites and the insufficient intratumoral H2O2 level leads to limited efficiency of most Fenton/Fenton‐like reactions, which greatly imped its clinical conversion. This paper reports the fabrication of Fenton‐type bimetallic peroxides for ultrasensitive chemodynamic therapy with high pH‐activated, synergistic effect/H2O2 self‐supply‐mediated cascade Fenton chemistry for the first time. The observations reveal that these bimetallic peroxides exhibit an ultrasensitive acid‐activated decomposition‐mediated Fenton‐like reaction at the relatively high pH of 6.5–7.0, accompanied with highly increased •OH generation efficiency (especially, 40–60‐fold increase at pH 7.0) by the metal‐mediated synergistic effect‐enhanced Fenton chemistry as well as in situ self‐generated H2O2 supplement. Moreover, the bimetallic peroxides exhibit high tumor accumulation which along with a high‐efficiency tumor catalytic‐therapeutic with negligible side effects in vivo. Developing these novel bimetallic peroxides, together with the already demonstrated capacity of the key metals (Fe, Mn, Cu, etc.) for magnetic resonance imaging or photodynamic/immune‐enhanced therapy, will propel interest in development of smart high‐efficiency nanoplatform for cancer theranostics.
Manganese‐Dioxide‐Coating‐Instructed Plasmonic Modulation of Gold Nanorods for Activatable Duplex‐Imaging‐Guided NIR‐II Photothermal‐Chemodynamic Therapy
Authors: He Ting , Jiang Chao , He Jin , Zhang Yifan , He Gang , Wu Jiayingzi , Lin Jing , Zhou Xin , Huang Peng 
Published: March 2021

AbstractNanotheranostic agents of gold nanomaterials in the second near‐infrared (NIR‐II) window have attracted significant attention in cancer management, owing to the reduced background signal and deeper penetration depth in tissues. However, it is still challenging to modulate the localized surface plasmon resonance (LSPR) of gold nanomaterials from the first near‐infrared (NIR‐I) to NIR‐II region. Herein, a plasmonic modulation strategy of gold nanorods (GNRs) through manganese dioxide coating is developed for NIR‐II photoacoustic/magnetic resonance (MR) duplex‐imaging‐guided NIR‐II photothermal chemodynamic therapy. GNRs are coated with silica dioxide (SiO2) and then covered with magnesium dioxide (MnO2) to obtain the final product of GNR@SiO2@MnO2 (denoted as GSM). The LSPR peak of GNRs could be tuned by adjusting the thickness of the MnO2 layer. Theoretical simulations reveal that this plasmonic modulation is mainly due to the change of refraction index around the GNRs after coating with the MnO2 layer. Additionally, the MnO2 layer is demonstrated to degrade into Mn2+ ions in response to peroxide and acidic protons in the tumor microenvironment, which allows for MR imaging and chemodynamic therapy. This plasmonic modulation strategy can be adapted to other metal nanomaterials and the construction of a new class of NIR‐II nanotheranostics.
Multifunctional MOF‐Based Separator Materials for Advanced Lithium–Sulfur Batteries
Authors: Yuan Ning , Sun Wenduo , Yang Jinlin , Gong Xinrui , Liu Ruiping 
Published: March 2021

AbstractDespite the high theoretical specific capacity of 1675 mAh g−1, lithium–sulfur batteries (LSBs) are still far away from wide commercialization due to the poor sulfur/Li2S electroconductivity and the polysulfides shuttle effect. In order to alleviate the active materials shuttling, separators in LSBs are required to guarantee the fast lithium‐ion transfer as well as the strong polysulfides immobilization. Therefore, various functional materials have been employed to modify the separator to achieve this goal. Among them, metal–organic frameworks (MOFs) with easy morphology design and high ionic or electronic conductivity have been widely investigated. This review summarizes the recent advances of MOF‐based interlayer for LSBs separator functionalization. Original MOFs, MOF derivatives, and MOF composites are included in this discussion. The mechanism of the enhancement of the electrochemical performance of each modified separator is explicated. Furthermore, the prospect of this promising area is provided.
Fabrication of Micro‐ and Nanopatterned Nafion Thin Films with Tunable Mechanical and Electrical Properties Using Thermal Evaporation‐Induced Capillary Force Lithography
Authors: Choi Jong Seob , Tsui Jonathan H. , Xu Fei , Lee Su Han , Sung Sang‐Keun , Lee Heon Joon , Wang Chao , Kim Hyung Jin , Kim Deok‐Ho 
Published: March 2021

AbstractIn this paper, a simple and facile method to fabricate micro‐ and nanopatterned Nafion thin films with tunable mechanical and electrical properties is reported. To achieve this, a novel thermal evaporation‐induced capillary force lithography method with a swelling process to obtain enhanced pattern fidelity in micro‐ and nanomolded Nafion films is combined. It is demonstrated that structural fidelity and mechanical properties of micro‐ and nanopatterned Nafion thin films can be modulated by changing fabrication parameters, such as swelling time, Nafion polymer concentration, and curing temperature. Interestingly, it is also found that impedance properties of micro‐ and nanopatterned Nafion thin films are associated with the Nafion polymer concentration and curing temperature. In particular, 20% Nafion thin films exhibit greater impedance stability and lower impedance values than 5% Nafion thin films at lower frequencies. Moreover, curing temperature‐specific impedance changes are observed. These results suggest that capillary lithography can be used to fabricate Nafion micro‐ and nanostructures with high pattern fidelity capable of modifying mechanical and electrical properties of Nafion thin films.
Atomic Structure of the Initial Nucleation Layer in Hexagonal Perovskite BaRuO3 Thin Films
Authors: Yoon Sangmoon , Ok Jong Mok , Lee Sang A , Lee Jegon , Huon Amanda , Lupini Andrew R. , Choi Woo Seok , Lee Ho Nyung 
Published: March 2021

AbstractHexagonal perovskites are an attractive family of materials due to their various polymorphs and rich structure–property relationships. BaRuO3 (BRO) is a prototypical hexagonal perovskite, in which the electromagnetic properties are significantly modified depending on its lattice structure. Whereas thin‐film synthesis would allow the study of the diverse properties of hexagonal perovskites by epitaxially stabilizing various metastable polymorphs, the epitaxial growth of hexagonal perovskites, especially at the initial growth stage, is yet to be addressed. In this study, it is shown that an intriguing nucleation behavior takes place during the initial stabilization of a hexagonal 9R BRO thin film deposited on a (111) SrTiO3 (STO) substrate. It is found that a nanoscale strained layer composed of different RuO6 octahedral stacking is initially formed at the interface followed by a relaxed single crystal 9R BRO thin film. Within the interface layer, hexagonal BRO is nucleated on the (111) STO substrate by both face‐ and corner‐sharing octahedra. More interestingly, it is found that boundaries between differently stacked nucleation layers (heterostructural boundaries) facilitate strain relaxation, in addition to the formation of conventional misfit dislocations evolved from homostructural boundaries. The observations reveal an important underlying mechanism to understand the thin‐film epitaxy and strain accommodation in hexagonal perovskites.
A Printable Thin Film‐Based Digital Peristaltic Sticker‐Pump for a Simple and Robust Integration into Microfluidics
Authors: Koirala Gyan Raj , Shrestha Kiran , Lim Hosub , Cho Gyoujin 
Published: March 2021

AbstractA micropump is pivotal for routing and multiplexing fluids in microfluidic channels, especially for point‐of‐care diagnostic devices. In this regard, a simple and easily mountable micropump‐platform needs to be developed to expand the applications of microfluidic devices. Here, the sticker type‐peristaltic pump, called “sticker‐pump,” is developed by incorporating an array of biocompatible polymeric bimorph actuators. The sticker‐pump can be activated via digital input sequence to control the flow rate in response to the operating voltage and switching speed. Furthermore, the programmed digital sequence demonstrates the generation of pulsatile and continuous flows without any back pressure. The sticker‐pump is further studied through a systematic characterization to validate the working mechanism of one sticker‐pump (1‐bit) and the flow rates (3.77–36.90 µL min−1) attained by the combination of three sticker‐pumps (3‐bit) on microfluidics. Since the sticker‐pump is all solution‐processed, an inexpensive sticker‐pump can be manufactured by scalable printing technologies.
Low‐Symmetry and Nontoxic 2D SiP with Strong Polarization‐Sensitivity and Fast Photodetection
Authors: Zhao Shuqi , Luo Peng , Yang Sijie , Zhou Xing , Wang Ziming , Li Chunlong , Wang Shanpeng , Zhai Tianyou , Tao Xutang 
Published: March 2021

AbstractThe in‐plane anisotropic feature of 2D layered materials has captured enormous research interest due to their application in polarization‐sensitive photodetection. Here, silicon phosphide (SiP), as a novel member of group IV–V 2D materials, is first introduced to the anisotropic 2D materials family with a high in‐plane anisotropy. The low‐symmetry structure, optical and optoelectronic properties are investigated systematically. Impressively, the photodetectors based on 2D SiP demonstrate high performance with low dark current, a fast response speed of 30 µs, and a strong anisotropic photoresponse with an anisotropic factor of 2.9. Furthermore, a strong polarization‐sensitive photodetector with a dichroic ratio up to 2.3 is realized based on the intrinsic linear dichroism of 2D SiP. This work not only provides an insight into the in‐plane anisotropic properties of 2D SiP, but also sheds light on its great potentials in anisotropic optoelectronic applications.