bluuebunny/crossref_metadata_2025_split huggingface dataset:
Le Corbusier, nature, homme et architecture
Authors: Torres Cueco J. 
Published: April 2020

Esta introducción pretende acercar al lector al pensamiento de Le Corbusier de la mitad de los años cincuenta, en un momento creativo de gran intensidad, representado por el Poème de l’Angle Droit, y recogido de forma sintética en “Tout arrive enfin à la mer….”. Escrito inicialmente en 1954, en el curso de un vuelo entre Bombay y París, como una aportación a las publicaciones del Institut de l’Avenir Humain, una institución destinada al estudio de los problemas del hombre en la sociedad del momento, bajo el influjo del pensamiento de Teilhard de Chardin. En este artículo refleja sus reflexiones sobre la transformación del mundo ante los nuevos medios de comunicación y especialmente el avión; sobre la humanidad y su relación con la naturaleza y las leyes cósmicas, simbolizadas en sus dibujos del estuario del río Indo que acompañaron este texto; su compromiso artístico frente a los adversarios del progreso cultural; y sus preocupaciones por las amenazas de la guerra fría y de los conflictos bélicos de la década de los cincuenta, a los que contrapone con la imagen de la Mano Abierta, que lo acompañará hasta el final de su vida.
Motor competence difficulties and attention deficit and hyperactivity disorder (ADHD) among secondary students
Authors: Villa Miguel , Barriopedro Moro María Isabel , Ruiz Pérez Luis Miguel 
Published: April 2020

A high proportion of children with Attention problems (ADHD) experience motor competence problems. The present study sought to compare the motor competence between a group of ADHD students and a normative sample before and after controlling for motor coordination problems, and check if there are differences between the group with ADHD and the group with DT, depending on the presence or not of the DCD concurrent with the ADHD.
A total of 22 children with ADHD combined type (ADHD-CT; 12–13 years, SD 0.7, 16 males, 6 females) and 23 age-matched typically developing children with no movement difficulties (12-13 years, SD 0.7 16 males, 7 females) participated in this study. Motor coordination was measured using the Movement Assessment Battery for Children-2nd Edition (MABC-2). ADHD symptoms were assessed by the school’s Department of Psychology.The ADHD diagnosis is based on diagnostic criteria established by the Diagnostic and statistical manual of mental disorders, fifth edition (DSM-5), and the application of the following behavioral scales and evaluation of executive functions have been followed: Child Behavior Checklist for ages; Behavior Ratting Inventory of Executive Functions (BRIEF); Scales for the Evaluation of ADHD (EDAH). Based on the MABC-2 score (percentile score ≤ 5th), ADHD children were classified into two groups: co-occurring DCD/ADHD and ADHD group. Results showed that children with ADHD and typically developing (TD) children showed big individual differences on all motor skill areas and on overall percentile scores. Thirteen children with ADHD were delayed, and three were at risk for motor delays. Only four TD children were at risk for motor delays. DCD/ADHD group scored significantly lower than the TD group across all motor skill areas, while ADHD group scored lower than the TD group only on manual dexterity.
Anaemia Prevalence and Contributory Factors among Children in Uttarakhand, India
Authors: Suri Shweta , Dutta Anuradha , Raghuvanshi Rita Singh , Singh Anupama , Chopra C. S. 
Published: April 2020

Background: In India, Anaemia among children is still one of the major nutritional problems of public health concern.
Aim of the Study: The aim of the present study was to assess the prevalence of anaemia among Anganwadi children (3-6 years of age) and to determine the important risk factors associated with anaemia.
Study Design: Cross-sectional study.
Place and Duration of Study: Study was conducted among 390 Anganwadi children of Udham Singh Nagar district of Uttarakhand, during April, 2019- August, 2019.
Methodology: In this cross sectional study, data on socio-demographic, socioeconomic, hygiene and dietary practices were collected using a self-structured questionnaire. Hemoglobin (Hb) and anthropometric measurements were carried out. Multivariable logistic regression analysis was employed to estimate the adjusted odds ratio (AOR).
Results: A majority, 70.54% of the Anganwadi children were found to be anaemic, with higher prevalence among male children (51.30%) as compared to female children (48.70%). The mean hemoglobin concentration of children was 9.91 (±1.9 g/dl). Stunting was higher among males (54.83%) as compared to females (45.17%).Multivariable logistic regression analysis showed that anaemia was significantly associated with monthly income of family AOR (95% CI) 3.25(2.49, 4.00), mother's illiteracy AOR (95% CI) 1.98 (1.49, 2.46), history of anaemia in mother AOR (95% CI) 1.60(0.67, 2.52 ), history of worms in child's stool AOR (95% CI) 3.17(2.26,4.03), barefoot walking AOR (95% CI) 3.08(2.11,4.04) and lack of habit of hand washing AOR (95% CI) 1.55(0.98, 2.11).
Conclusion: The prevalence of anaemia among children was high. Iron supplementation, nutrition education among mothers and overall personal hygiene are important to ameliorate their iron status.
A Review of 3D Printing Technologies for Soft Polymer Materials
Authors: Zhou Lu‐Yu , Fu Jianzhong , He Yong 
Published: April 2020

AbstractSoft polymer materials, which are similar to human tissues, have played critical roles in modern interdisciplinary research. Compared with conventional methods, 3D printing allows rapid prototyping and mass customization and is ideal for processing soft polymer materials. However, 3D printing of soft polymer materials is still in the early stages of development and is facing many challenges including limited printable materials, low printing resolution and speed, and poor functionalities. The present review aims to summarize the ideas to address these challenges. It focuses on three points: 1) how to develop printable materials and make unprintable materials printable, 2) how to choose suitable methods and improve printing resolution, and 3) how to directly construct functional structures/systems with 3D printing. After a brief introduction on this topic, the mainstream 3D printing technologies for printing soft polymer materials are reviewed, with an emphasis on improving printing resolution and speed, choosing suitable printing techniques, developing printable materials, and printing multiple materials. Moreover, the state‐of‐the‐art advancements in multimaterial 3D printing of soft polymer materials are summarized. Furthermore, the revolutions brought about by 3D printing of soft polymer materials for applications similar to biology are highlighted. Finally, viewpoints and future perspectives for this emerging field are discussed.
Localized Ostwald Ripening Guided Dissolution/Regrowth to Ancient Chinese Coin‐shaped VO2 Nanoplates with Enhanced Mass Transfer for Zinc Ion Storage
Authors: Cao Ziyi , Wang Lipeng , Zhang Hong , Zhang Xiang , Liao Jiangwen , Dong Juncai , Shi Jiangyue , Zhuang Peiyuan , Cao Yudong , Ye Mingxin , Shen Jianfeng , Ajayan Pulickel M. 
Published: April 2020

AbstractCharge and mass transfer at the interface between electrode and electrolyte are of vital significance for energy conversion and storage in aqueous rechargeable zinc ion batteries (ZIBs). Approaching rational design and preparation of unique nanostructures with enhanced mass transfer is still facing great challenges in response to these problems. Herein, the highly uniform and round new‐state nsutite‐type vanadium dioxide (VO2) nanoplates with novel ancient Chinese coin structure (with thickness of ≈50 nm and diameter of ≈500 nm, with a hole in the middle) are prepared successfully. During the hydrothermal process, the VO2 nanoplate undergoes an interesting Ostwald ripening guided dissolution‐regrowth process, resulting in the formation of the unusual ancient Chinese coin structure. Impressively, based on structural merits of the abundant electrolyte‐accessible sites and transfer pathways, the mass transfer can be enhanced at the surface of as‐prepared VO2 nanoplates‐based electrode. The VO2 nanoplates further deliver high reversible specific capacity and rate ability for rechargeable ZIBs. Hence, this work presents a new avenue for designing unique nanostructure vanadium oxides to boost the electrochemical properties of aqueous ZIBs.
Towards Efficient Integrated Perovskite/Organic Bulk Heterojunction Solar Cells: Interfacial Energetic Requirement to Reduce Charge Carrier Recombination Losses
Authors: Daboczi Matyas , Kim Jinhyun , Lee Jinho , Kang Hongkyu , Hamilton Iain , Lin Chieh‐Ting , Dimitrov Stoichko D. , McLachlan Martyn A. , Lee Kwanghee , Durrant James R. , Kim Ji‐Seon 
Published: April 2020

AbstractIntegrated perovskite/organic bulk heterojunction (BHJ) solar cells have the potential to enhance the efficiency of perovskite solar cells by a simple one‐step deposition of an organic BHJ blend photoactive layer on top of the perovskite absorber. It is found that inverted structure integrated solar cells show significantly increased short‐circuit current (Jsc) gained from the complementary absorption of the organic BHJ layer compared to the reference perovskite‐only devices. However, this increase in Jsc is not directly reflected as an increase in power conversion efficiency of the devices due to a loss of fill factor. Herein, the origin of this efficiency loss is investigated. It is found that a significant energetic barrier (≈250 meV) exists at the perovskite/organic BHJ interface. This interfacial barrier prevents efficient transport of photogenerated charge carriers (holes) from the BHJ layer to the perovskite layer, leading to charge accumulation at the perovskite/BHJ interface. Such accumulation is found to cause undesirable recombination of charge carriers, lowering surface photovoltage of the photoactive layers and device efficiency via fill factor loss. The results highlight a critical role of the interfacial energetics in such integrated cells and provide useful guidelines for photoactive materials (both perovskite and organic semiconductors) required for high‐performance devices.
Co‐Delivery of Paclitaxel and Interleukin‐12 Regulating Tumor Microenvironment for Cancer Immunochemotherapy
Authors: Hu Qian , Shang Lihuan , Wang Mengmeng , Tu Kun , Hu Mei , Yu Yulin , Xu Mingwang , Kong Li , Guo Yuanyuan , Zhang Zhiping 
Published: April 2020

AbstractIn the treatment of malignant tumors, the combination of chemotherapy that can directly kill tumor cells and immunotherapy that can activate the body's immune system and regulate tumor microenvironments is becoming one of the most promising cancer treatments. However, to co‐deliver agents with different physicochemical properties for immunochemotherapy is still facing a challenge. Here, nanoparticles are developed for the co‐delivery of the hydrophobic chemotherapeutic drug paclitaxel (PTX) and biomacromolecule interleukin‐12 (IL‐12) through the acid‐sensitive material mPEG‐Dlinkm‐PDLLA and low‐temperature expansion effect of Pluronic F127. The nanoparticles encrich in the tumor site, significantly inhibit the growth and metastasis of breast cancer cells 4T1, and prolong the overall survival of tumor‐bearing mice. The underlying immune mechanism is further explored. The combination of PTX and IL‐12 activates T lymphocytes and NK cells to release IFN‐γ, selectively inhibits regulatory T cells and induces M1‐type differentiation of tumor‐related macrophages, thereby improving tumor immunosuppressive microenvironments. This study may provide an effective strategy for cancer immunochemotherapy through co‐delivery of chemotherapeutic drug and immune cytokine by the facile thermo‐sponge nanoparticles.
Living Bioelectrochemical Composites
Authors: McCuskey Samantha R. , Su Yude , Leifert Dirk , Moreland Alex S. , Bazan Guillermo C. 
Published: April 2020

AbstractComposites, in which two or more material elements are combined to provide properties unattainable by single components, have a historical record dating to ancient times. Few include a living microbial community as a key design element. A logical basis for enabling bioelectronic composites stems from the phenomenon that certain microorganisms transfer electrons to external surfaces, such as an electrode. A bioelectronic composite that allows cells to be addressed beyond the confines of an electrode surface can impact bioelectrochemical technologies, including microbial fuel cells for power production and bioelectrosynthesis platforms where microbes produce desired chemicals. It is shown that the conjugated polyelectrolyte CPE‐K functions as a conductive matrix to electronically connect a three‐dimensional network of Shewanella oneidensis MR‐1 to a gold electrode, thereby increasing biocurrent ≈150‐fold over control biofilms. These biocomposites spontaneously assemble from solution into an intricate arrangement of cells within a conductive polymer matrix. While increased biocurrent is due to more cells in communication with the electrode, the current extracted per cell is also enhanced, indicating efficient long‐range electron transport. Further, the biocomposites show almost an order‐of‐magnitude lower charge transfer resistance than CPE‐K alone, supporting the idea that the electroactive bacteria and the conjugated polyelectrolyte work synergistically toward an effective bioelectronic composite.
Metal‐Free Radical Annulation‐Hydrofunctionalization of 1,6‐Enynes for Stereoselective Synthesis of (E)‐1‐Indanones
Authors: Wu Ya‐Nan , Zhang Tian‐Shu , Hao Wen‐Juan , Tu Shu‐Jiang , Jiang Bo 
Published: April 2020

AbstractTwo metal‐free radical annulation‐hydrofunctionalization cascades of 1,6‐enynes have been established, enabling the complete stereoselectivity to access a wide range of functionalized (E)‐1‐indanones with moderate to good yields. The reaction pathways involve in situ‐generated P‐ or S‐centered radical‐triggered α,β‐conjugated addition/5‐exo‐dig cyclization/H‐abstraction sequence, allowing direct and versatile protocols for stereoselective construction of 1‐indanone scaffolds with high functional group tolerance and wide substrate scope.
Mathematical Operations of Transmissive Near Fields Controlled by Metasurface with Phase and Amplitude Modulations
Authors: Bao Lei , Wu Rui Yuan , Fu Xiaojian , Cui Tie Jun 
Published: April 2020

AbstractMetasurfaces show great potential due to their powerful ability to manipulate electromagnetic waves as desired, which has been widely investigated in the microwave, terahertz, infrared, and visible regimes. Here, it is proposed to control near‐field distributions through use of a metasurface with both amplitude and phase modulations. A C‐shaped particle is designed to provide stable and continuous amplitude and phase profiles independently of transmitted waves by varying its opening and orientation angles. Benefiting from both amplitude and phase modulations on the metasurface, differentiation and integration on electric‐field distributions can be achieved by changing the arrangements of complex coefficients on the metasurface. Besides, the differential operation can be utilized to show the edges of predesigned electric‐field distributions. It is believed that the proposed method will accelerate the pace of metasurfaces towards many applications by engineering and operating the near‐field distributions.
Polypyridine‐Based Helical Amide Foldamer Channels: Rapid Transport of Water and Protons with High Ion Rejection
Authors: Shen Jie , Fan Jingrong , Ye Ruijuan , Li Ning , Mu Yuguang , Zeng Huaqiang 
Published: April 2020

AbstractSynthetic strategies that enable rapid construction of covalent organic nanotubes with an angstrom‐scale tubular pore remain scarcely reported. Reported here is a remarkably simple and mild one‐pot polymerization protocol, employing POCl3 as the polymerization agent. This protocol efficiently generates polypyridine amide foldamer‐based covalent organic nanotubes with a 2.8 nm length at a yield of 50 %. Trapping single‐file water chains in the 2.8 Å tubular cavity, rich in hydrogen‐bond donors and acceptors, these tubular polypyridine ensembles rapidly and selectively transport water at a rate of 1.6×109 H2O⋅S−1⋅channel−1 and protons at a speed as fast as gramicidin A, with a high rejection of ions.
Anomalous Light‐Induced Spin‐State Switching for Iron(II) Spin‐Crossover Molecules in Direct Contact with Metal Surfaces
Authors: Zhang Luqiong , Tong Yongfeng , Kelai Massine , Bellec Amandine , Lagoute Jérôme , Chacon Cyril , Girard Yann , Rousset Sylvie , Boillot Marie‐Laure , Rivière Eric , Mallah Talal , Otero Edwige , Arrio Marie‐Anne , Sainctavit Philippe , Repain Vincent 
Published: April 2020

AbstractLight‐induced spin‐state switching is one of the most attractive properties of spin‐crossover materials. In bulk, low‐spin (LS) to high‐spin (HS) conversion via the light‐induced excited spin‐state trapping (LIESST) effect may be achieved with a visible light, while the HS‐to‐LS one (reverse‐LIESST) requires an excitation in the near‐infrared range. Now, it is shown that those phenomena are strongly modified at the interface with a metal. Indeed, an anomalous spin conversion is presented from HS state to LS state under blue light illumination for FeII spin‐crossover molecules that are in direct contact with metallic (111) single‐crystal surfaces (copper, silver, and gold). To interpret this anomalous spin‐state switching, a new mechanism is proposed for the spin conversion based on the light absorption by the substrate that can generate low energy valence photoelectrons promoting molecular vibrational excitations and subsequent spin‐state switching at the molecule–metal interface.
Aggregation and Degradation of White Phosphorus Mediated by N‐Heterocyclic Carbene Nickel(0) Complexes
Authors: Hierlmeier Gabriele , Coburger Peter , van Leest Nicolaas P. , de Bruin Bas , Wolf Robert 
Published: April 2020

AbstractThe reaction of zerovalent nickel compounds with white phosphorus (P4) is a barely explored route to binary nickel phosphide clusters. Here, we show that coordinatively and electronically unsaturated N‐heterocyclic carbene (NHC) nickel(0) complexes afford unusual cluster compounds with P1, P3, P5 and P8 units. Using [Ni(IMes)2] [IMes=1,3‐bis(2,4,6‐trimethylphenyl)imidazolin‐2‐ylidene], electron‐deficient Ni3P4 and Ni3P6 clusters have been isolated, which can be described as superhypercloso and hypercloso clusters according to the Wade–Mingos rules. Use of the bulkier NHC complexes [Ni(IPr)2] or [(IPr)Ni(η6‐toluene)] [IPr=1,3‐bis(2,6‐diisopropylphenyl)imidazolin‐2‐ylidene] affords a closo‐Ni3P8 cluster. Inverse‐sandwich complexes [(NHC)2Ni2P5] (NHC=IMes, IPr) with an aromatic cyclo‐P5− ligand were identified as additional products.
Three New Diketopiperazines from the Previously Uncultivable Marine Bacterium Gallaecimonas mangrovi HK‐28 Cultivated by iChip
Authors: Ding Lijian , Xu Peng , Zhang Weiyan , Yuan Ye , He Xiaoping , Su Dengquan , Shi Yutong , Naman C. Benjamin , Yan Xiaojun , Wu Bin , Lazaro J. Enrico H. , Li Shengying , He Shan 
Published: April 2020

AbstractThe in situ application of iChip cultivation in mangrove sediment from Hainan province, China, led to the isolation of a novel bacterial species Gallaecimonas mangrovi HK‐28. The extract of G. mangrovi HK‐28 exhibited antibiotic activity against the aquatic pathogen Vibrio harveyi, and its chemical constituents were further investigated by bioactivity‐guided isolation. Three new diketopiperazines, gallaecimonamides A–C, were accordingly isolated from the AcOEt extract of the fermentation broth of G. mangrovi HK‐28. The planar structures of gallaecimonamides A–C were determined using HR‐ESI‐MS together with 1D‐ and 2D‐NMR. The absolute configurations of gallaecimonamides A–C were assigned by optical rotation, NOESY experiment and TDDFT ECD calculations. The in vitro antibacterial and antimalarial activities of gallaecimonamides A–C were assessed. Gallaecimonamide A was found to display antibacterial activity against V. harveyi with a MIC value of 50 μm. However, gallaecimonamides B and C showed no antibacterial activity against V. harveyi (MIC >300 μm). In addition, all the isolates did not exhibit any inhibitory activities against V. parahaemolyticus (MIC>300 μm) and Plasmodium falciparum W2 (EC50>100 μg/mL).
Bimetallic CuCo2S4 Nanozymes with Enhanced Peroxidase Activity at Neutral pH for Combating Burn Infections
Authors: Li Dandan , Guo Qianqian , Ding Liming , Zhang Wei , Cheng Lu , Wang Yanqiu , Xu Zhuobin , Wang Huihui , Gao Lizeng 
Published: April 2020

AbstractPeroxidase‐mimicking nanozymes that can generate toxic hydroxyl radicals (.OH) hold great promise as antibacterial alternatives. However, most of them display optimal performance under strongly acidic conditions (pH 3–4), and are thus not feasible for many medical uses, including burn infections with a wound pH close to neutral. Herein, we report a copper‐based nanozyme (CuCo2S4) that exhibits intrinsic peroxidase‐like activity and can convert H2O2 into .OH at neutral pH. In particular, bimetallic CuCo2S4 nanoparticles (NPs) exhibited enhanced peroxidase‐like activity and antibacterial capacity, superior to that of the corresponding monometallic CuS and CoS NPs. The CuCo2S4 nanozymes possessed excellent ability to kill various bacteria, including methicillin‐resistant Staphylococcus aureus (MRSA). Furthermore, this CuCo2S4 nanozymes could effectively disrupt MRSA biofilms in vitro and accelerate MRSA‐infected burn healing in vivo. This work provides a new peroxidase mimic to combat bacteria in neutral pH milieu and this CuCo2S4 nanozyme could be a promising antibacterial agent for the treatment of burn infections.
CO2 Conversion by Combining a Copper Electrocatalyst and Wild‐type Microorganisms
Authors: Chatzipanagiotou Konstantina‐Roxani , Jourdin Ludovic , Buisman Cees J. N. , Strik David P. B. T. B. , Bitter Johannes H. 
Published: April 2020

AbstractCarbon dioxide (CO2) can be converted to valuable products using different catalysts, including metal or biological catalysts (e. g. microorganisms). Some products formed by metal electrocatalysts can be further utilized by microorganisms, and therefore catalytic cooperation can be envisioned. To prevent cumbersome separations, it is beneficial when both catalyst work under the same conditions, or at least in the same reaction medium. Here, we will show that a formate‐producing copper electrocatalyst can function in a biological medium. Furthermore, we will show that the effluent of the copper‐containing reactor can be used without purification as the sole medium for a bio‐reactor, inoculated with a mixed culture of microorganisms. In that second reactor, formate, H2 and CO2 are consumed by the microorganisms, forming acetate and methane. Compared to simple buffer electrolyte, catalytic activity of copper was improved in the presence of microbial growth medium, likely due to EDTA (Ethylenediaminetetraacetic acid) present in the latter.
meso‐Diazacorrphycenes: Neighboring Effect of Two Nitrogen Atoms
Authors: Yagi Atsumi , Shinokubo Hiroshi 
Published: April 2020

AbstractThe neighboring effect of two adjacent heteroatoms influences the structures and properties of heterocyclic compounds. Herein, we demonstrated that the introduction of two adjacent sp2 nitrogen atoms into a porphyrinic skeleton significantly enhanced its Brønsted basicity due to the repulsive interaction between two lone pairs on the nitrogen atoms. Palladium‐ and copper‐templated ring closure of dichlorobis(dipyrrin) with hydrazine hydrate provided meso‐diazacorrphycene palladium and copper complexes in good yields. The structural, magnetic, and electrochemical properties of the diazacorrphycene complexes were investigated experimentally and theoretically to elucidate the effect of the meso‐nitrogen atoms.