bluuebunny/crossref_metadata_2025 huggingface dataset:
The impact of fluid resuscitation via colon on patients with severe acute pancreatitis
Authors: Ni Tongtian , Chen Ying , Zhao Bing , Ma Li , Yao Yi , Chen Erzhen , Zhou Weijun , Mao Enqiang
Published: June 2021

Severe acute pancreatitis (SAP) is a life-threatening disease. Fluid Resuscitation Via Colon (FRVC) may be a complementary therapy for early controlled fluid resuscitation. But its clinical application has not been reported. This study aims to explore the impact of FRVC on SAP. All SAP patients with the first onset within 72 h admitted to the hospital were included from January 2014 to December 2018 through electronic databases of Ruijin hospital and were divided into FRVC group (n = 103) and non-FRVC group (n = 78). The clinical differences before and after the therapy between the two groups were analyzed. Of the 181 patients included in the analysis, the FRVC group received more fluid volume and reached the endpoint of blood volume expansion ahead of the non-FRVC group. After the early fluid resuscitation, the inflammation indicators in the FRVC group were lower. The rate of mechanical ventilation and the incidence of hypernatremia also decreased significantly. Using pure water for FRVC was more helpful to reduce hypernatremia. However, Kaplan–Meier 90-day survival between the two groups showed no difference. These results suggest that the combination of FRVC might benefit SAP patients in the early stage of fluid resuscitation, but there is no difference between the prognosis of SAP patients and that of conventional fluid resuscitation. Further prospective study is needed to evaluate the effect of FRVC on SAP patients.
Effects of curcumin on the bioavailability of dioxin-like pollutants in rats
Authors: Cai Delei , Chen Qing , Han Jianlong , Song Yanhua , Meng Zhen , Zheng Yibin , Shen Haitao
Published: June 2021

The effects of curcumin on the bioavailability of polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) were investigated in Sprague–Dawley rats. Tetra- and penta-chlorinated PCDFs had the lowest bioavailability and hexa-chlorinated PCDD/Fs had the highest, while there was no obvious change in that of DL-PCBs. Curcumin markedly reduced the toxic equivalent (TEQ) of PCDD/Fs in rats, illustrating the potential to competitively inhibit absorption of PCDD/Fs by the epithelial cells of the small intestine due to the similar chemical structure (diphenyl) between curcumin and PCDD/Fs. Moreover, curcumin lowered the TEQ of DL-PCBs in the liver of male rats, but not female rats. The significant decrease in the bioavailability of PCDD/Fs and DL-PCBs demonstrates the potential detoxification mechanisms of curcumin.
Insights into the genomic evolution of insects from cricket genomes
Authors: Ylla Guillem , Nakamura Taro , Itoh Takehiko , Kajitani Rei , Toyoda Atsushi , Tomonari Sayuri , Bando Tetsuya , Ishimaru Yoshiyasu , Watanabe Takahito , Fuketa Masao , Matsuoka Yuji , Barnett Austen A. , Noji Sumihare , Mito Taro , Extavour Cassandra G.
Published: June 2021

Most of our knowledge of insect genomes comes from Holometabolous species, which undergo complete metamorphosis and have genomes typically under 2 Gb with little signs of DNA methylation. In contrast, Hemimetabolous insects undergo the presumed ancestral process of incomplete metamorphosis, and have larger genomes with high levels of DNA methylation. Hemimetabolous species from the Orthopteran order (grasshoppers and crickets) have some of the largest known insect genomes. What drives the evolution of these unusual insect genome sizes, remains unknown. Here we report the sequencing, assembly and annotation of the 1.66-Gb genome of the Mediterranean field cricketGryllus bimaculatus, and the annotation of the 1.60-Gb genome of the Hawaiian cricketLaupala kohalensis. We compare these two cricket genomes with those of 14 additional insects and find evidence that hemimetabolous genomes expanded due to transposable element activity. Based on the ratio of observed to expected CpG sites, we find higher conservation and stronger purifying selection of methylated genes than non-methylated genes. Finally, our analysis suggests an expansion of thepickpocketclass V gene family in crickets, which we speculate might play a role in the evolution of cricket courtship, including their characteristic chirping.
Exploring the octanol–water partition coefficient dataset using deep learning techniques and data augmentation
Authors: Ulrich Nadin , Goss Kai-Uwe , Ebert Andrea
Published: June 2021

Today more and more data are freely available. Based on these big datasets deep neural networks (DNNs) rapidly gain relevance in computational chemistry. Here, we explore the potential of DNNs to predict chemical properties from chemical structures. We have selected the octanol-water partition coefficient (log P) as an example, which plays an essential role in environmental chemistry and toxicology but also in chemical analysis. The predictive performance of the developed DNN is good with an rmse of 0.47 log units in the test dataset and an rmse of 0.33 for an external dataset from the SAMPL6 challenge. To this end, we trained the DNN using data augmentation considering all potential tautomeric forms of the chemicals. We further demonstrate how DNN models can help in the curation of the log P dataset by identifying potential errors, and address limitations of the dataset itself.
Micro- and nano-encapsulated metal and alloy-based phase-change materials for thermal energy storage
Authors: Zhu Shilei , Nguyen Mai Thanh , Yonezawa Tetsu
Published: June 2021

A new class of phase change materials based on encapsulated metal and alloy micro- and nano-particles with advanced thermophysical properties for cyclable and stable thermal energy storage/release is highlighted.
A facile colorimetric aptasensor for low-cost chlorpyrifos detection utilizing gold nanoparticle aggregation induced by polyethyleneimine
Authors: Soongsong Jittrapun , Lerdsri Jamras , Jakmunee Jaroon
Published: June 2021

A simple colorimetric aptasensor has been developed for chlorpyrifos determination based on the localized surface plasmon resonance of gold nanoparticle aggregates coupling with a specific aptamer and a cationic polyethyleneimine inducer.
Solvent assistance induced surface N-modification of PtCu aerogels and their enhanced electrocatalytic properties
Authors: Song Tianshan , Xue Hui , Sun Jing , Guo NianKun , Sun Jiawen , Wang Qin
Published: June 2021

A PtCu aerogel with large electrochemical active areas and high structure stability was developed. It shows exceptional electrocatalytic activity for the oxygen reduction reaction (ORR) and methanol electrooxidation (MOR).
Aluminum doping effects on photoresponse characteristics of hydrothermal tin disulfide nanosheets
Authors: Meng Xiancheng , Fan Chao , An Xia , Yuan Shuo , Jing Yongkai , Liu Zhe , Sun Chun , Zhang Yonghui , Zhang Zihui , Wang Mengjun , Zheng Hongxing , Li Erping
Published: June 2021

Photoresponse characteristics of Al-doped SnS2 nanosheets have been improved significantly by aluminum doping, compared to pristine SnS2. The response time was reduced by two orders of magnitude and the responsivity was increased one hundredfold.
Formation of sandwich, macrocyclic and box supramolecular assemblies that were controlled by the distance of two oxygen atoms in hydrogen bonding donors
Authors: Zeng Fei , Tang Lin-Li , Liao Juan , Ding Man-Hua , Ou Guang-Chuan
Published: June 2021

Sandwich, macrocyclic and box supramolecular assemblies were synthesized. They can further self assemble to form a double-layer supramolecular polymer, nanotubes and one-dimensional “iron chain type” supramolecular polymer.
Signature of the surface hydrated proton and associated restructuring of water at model membrane interfaces: a vibrational sum frequency generation study
Authors: Biswas Biswajit , Singh Prashant Chandra
Published: June 2021

Hydrated proton at membrane interfaces plays an important role in the bioenergetic process of almost all organisms.
Understanding carbon contamination in the proton-conducting zirconates and cerates
Authors: Rowberg Andrew J. E. , Swift Michael W. , Van de Walle Chris G.
Published: June 2021

We use first-principles calculations to explain why, among proton conductors, cerates are more susceptible to carbon degradation than zirconates.
CO2-assisted ethane oxidative dehydrogenation over MoOx catalysts supported on reducible CeO2–TiO2
Authors: Nguyen Thu D. , Zheng Weiqing , Celik Fuat E. , Tsilomelekis George
Published: June 2021

Supported MoOx catalysts on mixed CeO2–TiO2 were investigated for the oxidative dehydrogenation of ethane (ODHE) using CO2 as a mild oxidant. The reducibility of the support and nature of MoOx affect the relative dehydrogenation pathways.
Double α,α CH bond insertion into sp3 CH2 moiety: synthesis of a Fe carbene bis-hydride dinitrogen complex
Authors: Petit Julien , Cavaillé Anthony , Saffon-Merceron Nathalie , Fustier-Boutignon Marie , Mézailles Nicolas
Published: June 2021

Reduction of [(κ2-P, P′-PCH2PCy)FeCl2] 2 by two electrons under N2 resulted in the formation of two isomeric low spin diamagnetic complexes 3trans and 3cis [Fe(κ3-P,C,P′-PCPCy)(H)2(N2)] via two successive CH bond insertions.
Cyclometalated Ir(iii) complexes as potential electron acceptors for organic solar cells
Authors: Yang Tianjian , He Yinming , Cheng Yang , Gao Xuyu , Wu Yijing , Yuan Wenbo , Tao Youtian
Published: June 2021

Two cyclometalated Ir complexes which showed an enhanced efficiency compared to relevant main organic ligands were developed as potential electron acceptor materials for organic solar cells.
Boosting the charge transfer of FeOOH/Ni(OH)2 for excellent oxygen evolution reaction via Cr modification
Authors: He Yan , Yu Tao , Wen Hui , Guo Rui
Published: June 2021

Cr-Doped FeOOH/Ni(OH)2 electrocatalysts were prepared via a facile hydrothermal method at 120 °C. The electrocatalyst exhibited outstanding OER performance, with an overpotential of 291 mV at 50 mA cm−2.
Pd doping-weakened intermediate adsorption to promote electrocatalytic nitrate reduction on TiO2 nanoarrays for ammonia production and energy supply with zinc–nitrate batteries
Authors: Guo Ying , Zhang Rong , Zhang Shaoce , Zhao Yuwei , Yang Qi , Huang Zhaodong , Dong Binbin , Zhi Chunyi
Published: June 2021

An electrochemical nitrate-based cell enables both ammonia production and energy supply.
Encapsulating microorganisms to enhance biological nitrogen removal in wastewater: recent advancements and future opportunities
Authors: Wang Zhiyue , Ishii Satoshi , Novak Paige J.
Published: June 2021

Encapsulating microorganisms is promising to enhance biological nitrogen removal (BNR) in wastewater, with benefits of increased efficiency, reduced inhibition, and improved stability.
Anti-GPC1-modified mesoporous silica nanoparticles as nanocarriers for combination therapy and targeting of PANC-1 cells
Authors: Estevão Bianca Martins , Comparetti Edson José , Rissi Nathalia Cristina , Zucolotto Valtencir
Published: June 2021

We present a novel therapeutic nanoplatform based on mesoporous silica nanoparticles encapsulating ferulic acid/gemcitabine and functionalized with anti-GPC1 antibodies to target human pancreatic cancer (PANC-1) cells.
Boron vacancy: a strategy to boost the oxygen reduction reaction of hexagonal boron nitride nanosheet in hBN–MoS2 heterostructure
Authors: Roy Dipayan , Panigrahi Karamjyoti , Das Bikram K. , Ghorui Uday K. , Bhattacharjee Souvik , Samanta Madhupriya , Sarkar Sourav , Chattopadhyay Kalyan K.
Published: June 2021

Defect engineering of hexagonal boron nitride (hBN) reduces the formation of toxic peroxide ion and enhances the ORR activity.
ZIF-67-based catalysts for oxygen evolution reaction
Authors: Wen Hui , Zhang Shengqi , Yu Tao , Yi Ziyu , Guo Rui
Published: June 2021

As a new type of crystalline porous material, the imidazole zeolite framework (ZIF) has attracted widespread attention due to its ultra-high surface area, large pore volume, and unique advantage of easy functionalization.
Efficient charge-transfer from diketopyrrolopyrroles to single-walled carbon nanotubes
Authors: Papadopoulos Ilias , Menon Arjun , Plass Fabian , Molina Desiré , Harreiß Christina , Kahnt Axel , Spiecker Erdmann , Sastre-Santos Ángela , Guldi Dirk M.
Published: June 2021

In this contribution, the excited state charge-transfer interactions between single-walled carbon nanotubes (SWCNTs) and a variety of phenyl, 4-bromophenyl, and thiophene substituted diketopyrrolopyrroles (DPPs), is described.
A high-accuracy machine-learning water model for exploring water nanocluster structures
Authors: Zhou Hao , Feng Ya-Juan , Wang Chao , Huang Teng , Liu Yi-Rong , Jiang Shuai , Wang Chun-Yu , Huang Wei
Published: June 2021

A machine-learning water model accelerates the study on the structures of water nanoclusters with DFT accuracy.
Fe/S-Catalyzed synthesis of 2-benzoylbenzoxazoles and 2-quinolylbenzoxazoles via redox condensation of o-nitrophenols with acetophenones and methylquinolines
Authors: Nguyen Le Anh , Nguyen Thi Thu Tram , Ngo Quoc Anh , Nguyen Thanh Binh
Published: June 2021

Redox condensation of o-nitrophenols with acetophenones/methylquinolines using a biomimetic Fe/S catalyst under mild conditions.
Amine-containing diblock terpolymers via AROP: a versatile method for the generation of multifunctional micelles
Authors: Elter Johanna K. , Eichhorn Jonas , Ringleb Michael , Schacher Felix H.
Published: June 2021

We herein report the synthesis and block copolymerization via AROP of three glycidyl amine species (PiGA; OPGA, and MPGA) with different hydrophobicity. Micelles formed from these block copolymers respond to changes in pH and H2O2 concentration.
Photoactive conjugated polymer/graphdiyne nanocatalyst for CO2 reduction to CO in living cells for hypoxia tumor treatment
Authors: Zhang Endong , Zuo Zicheng , Yu Wen , Zhao Hao , Xia Shengpeng , Huang Yiming , Lv Fengting , Liu Libing , Li Yuliang , Wang Shu
Published: June 2021

A photoactive conjugated polymer/graphdiyne nanocatalyst was developed for the in situ reduction of CO2 to CO for hypoxia tumor treatment.
Formation of diversified spiro-[imidazole-indene] derivatives from 2H-imidazoles: based on versatile propargyl alcohols
Authors: Luo Yi , Pu Wei-Yi , Xu Yan-Jun , Dong Lin
Published: June 2021

Rh(iii)-Catalyzed efficient cascade annulation for the regioselective construction of various spiro-[imidazole-indene] derivatives has been reported by utilizing versatile propargyl alcohols as coupling partners.
Ultra-high Seebeck coefficient of a thermal sensor through entropic optimisation of ligand length of Fe(ii) spin-crossover (SCO) materials
Authors: Che Hassan Hazirah , Mohd Said Suhana , Nik Ibrahim Nik Muhd Jazli , Megat Hasnan Megat Muhammad Ikhsan , Mohd Noor Ikhwan Syafiq , Zakaria Rozalina , Mohd Salleh Mohd Faiz , Md. Noor Nur Linahafizza , Abdullah Norbani
Published: June 2021

The molecular optimisation strategies exhibit ultrahigh Seebeck coefficient through a six-pronged approach to maximise entropy during the transition from low spin (LS) to high spin (HS).
Mechanistic insight into B(C6F5)3 catalyzed imine reduction with PhSiH3 under stoichiometric water conditions
Authors: He Yunqing , Nie Wanli , Xue Ying , Hu Qishan
Published: June 2021

Hydrosilylation or amination products? It depends on water amount and nucleophiles like excess water or produced/added amines.
First thermal studies on visible-light-switchable negative T-type photochromes of a nitrile-rich series
Authors: Belikov Mikhail Yu. , Ievlev Mikhail Yu.
Published: June 2021

The temperature effect on the thermal stability of both the initial and photoinduced forms of nitrile-rich T-type photochromes was studied for the first time.
A novel ionic AIE smart responsive material with multiple structural transformations
Authors: Xu Zixuan , Su Linhan , Chen Xiaofen , Yang Ying
Published: June 2021

A novel ionic AIE smart responsive material [TPE-Dim-DMe] (Br)2 and its multiple applicaitions.
Hyperacmosins K–M, three new polycyclic polyprenylated acylphloroglucinols from Hypericum acmosepalum
Authors: Sun Mingxia , Wang Xue , Zhu Tingting , Suo Xinyue , Wang Jiajia , Ji Tengfei , Liu Bo
Published: June 2021

Hyperacmosins K–M (1–3), three new polycyclic polyprenylated acylphloroglucinol (PPAPs) – derivatives, were isolated from the air-dried aerial parts of Hypericum asmosepalum.
Bi(OTf)3-catalysed intramolecular cyclisation of unsaturated acetals
Authors: Saget Raphaël , Jaunky Piotr , Duñach Elisabet
Published: June 2021

A series of highly functionalized carbocycles was efficiently prepared via the selective cyclisation of unsaturated acetals and ketals in the presence of only 1 mol% of Bi(iii) or Fe(iii) triflates as the catalysts at room temperature, with yields ranging from 60 to 90%.
Adsorption of lindane (γ-hexachlorocyclohexane) on nickel modified graphitic carbon nitride: a theoretical study
Authors: Ha Nguyen Thi Thu , Be Pham Thi , Ngoc Ha Nguyen
Published: June 2021

A comprehensive theoretical study on the adsorption of lindane on nickel modified g-C3N4 was performed. The influence of material thickness, different solvents and temperature on the adsorption process was discussed and analyzed in detail.
UO2F2 particulate formation in an impinging jet gas reactor
Authors: Hubbard Joshua A. , Cheng Meng-Dawn , Cheung Lawrence , Kirsch Jared R. , Richards Jason M. , Fugate Glenn A.
Published: June 2021

Computational fluid dynamics (CFD), chemical kinetics, and aerosol dynamics were combined to model the formation of uranyl fluoride particles from the hydrolysis of uranium hexafluoride gas.
Exploiting and controlling gel-to-crystal transitions in multicomponent supramolecular gels
Authors: Giuri Demetra , Marshall Libby J. , Dietrich Bart , McDowall Daniel , Thomson Lisa , Newton Jenny Y. , Wilson Claire , Schweins Ralf , Adams Dave J.
Published: June 2021

Multicomponent supramolecular gels provide opportunities to form materials that are not accessible when using the single components alone.
Equilibrium distances for the capillary interaction between floating objects
Authors: Poty Martin , Vandewalle Nicolas
Published: June 2021

Small objects placed at the water–air interface undergo coexisting attraction and repulsion, causing an equilibrium distance for which a general equation is given.
Phase equilibrium and dielectric relaxation in mixture of 5CB with dilute dimethyl phthalate: effect of coupling between orientation and composition fluctuations on molecular dynamics in isotropic one-phase state
Authors: Shimada Ryoko , Urakawa Osamu , Inoue Tadashi , Watanabe Hiroshi
Published: June 2021

Phase equilibrium and dielectric relaxation were examined for mixtures of liquid-crystalline (LC)-forming 4-cyano-4′-pentylbiphenyl (5CB) with dilute dimethyl phthalate (DMP).
Development of an electrically responsive hydrogel for programmable in situ immobilization within a microfluidic device
Authors: Ambrožič Rok , Plazl Igor
Published: June 2021

A flow microdevice with programmable in situ formation/dissolution of a hydrogel 3D network was designed. An active porous medium shows excellent bio-compatibility and promises high, long-term activities without leaching of immobilized biomolecules.
Burnt bridge ratchet motor force scales linearly with polyvalency: a computational study
Authors: Blanchard Aaron T.
Published: June 2021

Nano- and micro-scale burnt bridge ratchet (BBR) motors have emerged in several biological and engineering contexts. In this work, simulations suggest that BBR motor force scales linearly – across orders of magnitude – with the number of tethers.
A self-supported NiCo2O4/CuxO nanoforest with electronically modulated interfaces as an efficient electrocatalyst for overall water splitting
Authors: Ouyang Qi , Lei Zuotao , Li Qun , Li Mingyang , Yang Chunhui
Published: June 2021

The electrons transfer from Cu2O to NiCo2O4 with the formation of Cu–O bonds at the interface of the NiCo2O4/CuxO, making parts of the relatively inert Cu(i) into the active Cu(ii) and introducing abundant new active sites.
Pt-on-Pd bimetallic nanodendrites stereoassembled on MXene nanosheets for use as high-efficiency electrocatalysts toward the methanol oxidation reaction
Authors: Yang Cuizhen , Jiang Quanguo , Liu Huan , Yang Lu , He Haiyan , Huang Huajie , Li Weihua
Published: June 2021

3D porous Pt-on-Pd bimetallic nanodendrites stereoassembled on a 2D Ti3C2Tx MXene matrix possess exceptional electrocatalytic properties toward the methanol oxidation reaction.
Clarifying the lithium storage behavior of MoS2 with in situ electrochemical impedance spectroscopy
Authors: Deng Chao , Wang Hongquan , Wang Shengping
Published: June 2021

The lithium storage behavior of MoS2 is clarified with in situ electrochemical impedance spectroscopy.
The stabilization of supported Au nanoparticles in a highly sintering environment using high surface free energy Pt and Ru cores
Authors: O'Connell Kerry C. , Monnier John R. , Regalbuto J. R.
Published: June 2021

To stabilize carbon supported gold nanoparticles which sinter rapidly in a corrosive environment, bimetallic Ru@Au and Pt@Au core–shell supported nanoparticles were prepared by anchoring shells of Au onto higher surface free energy cores of Pt and Ru.
Synthesis, structure and diffusion pathways of fast lithium-ion conductors in the polymorphs α- and β-Li8SnP4
Authors: Strangmüller Stefan , Eickhoff Henrik , Klein Wilhelm , Raudaschl-Sieber Gabriele , Kirchhain Holger , Kutsch Tobias , Baran Volodymyr , Senyshyn Anatoliy , van Wüllen Leo , Gasteiger Hubert A. , Fässler Thomas F.
Published: June 2021

The increasing demand for a high-performance battery technology promotes the search for Li+-conducting materials.
Electroconductive nanofibrous membranes with nanosheet-based microsphere-threaded heterostructures enabling oily wastewater remediation
Authors: Zhang Jichao , Song Jun , Liu Lifang , Zhang Peng , Si Yang , Zhang Shichao , Yu Jianyong , Ding Bin
Published: June 2021

Inspired by the taro leaf, a biomimetic membrane with a hierarchical surface and chloroplast-structured photocatalyst is fabricated. And the membrane possesses visible-light-driven self-cleaning ability for oil-in-water emulsion separation.
P2-layered Na0.5Li0.07Mn0.61Co0.16Ni0.16O2 cathode boosted Na-storage properties via rational sub-group element doping
Authors: Dai Dongmei , Qiu Jinxu , Hou Hongying , Wang Xiaojuan , Li Siyuan , Cao Bobo , Zhou Xinxin , Liu Dai-Huo , Wang Bao , Li Bao
Published: June 2021

The sub-group element with low valence state and larger radius doping of a hybrid P2-layered Na0.5Li0.07Mn0.61Co0.16Ni0.16O2 were systematically investigated. The refined XRD results and operando XRD data revealed the improved Na-storage capability.
Defect engineering via the F-doping of β-MnO2 cathode to design hierarchical spheres of interlaced nanosheets for superior high-rate aqueous zinc ion batteries
Authors: Kim Seoyeong , Koo Bon-Ryul , Jo Yong-Ryun , An Ha-Rim , Lee Young-Geun , Huang Chun , An Geon-Hyoung
Published: June 2021

The valance engineering of β-MnO2via F-doping process triggers designing hierarchical spheres with interlaced nanosheets to accelerate electrochemical kinetics and capacity, ensuring superior high-rate aqueous zinc ion battery performances.
Surface chemistry regulates the optical properties and cellular interactions of ultrasmall MoS2quantum dots for biomedical applications
Authors: Liang Kangqiang , Qu Shaohua , Li Yixiao , Tan Li-li , Shang Li
Published: June 2021

The thiolate ligands anchored on the surface of ultrasmall MoS2quantum dots can play a significant role in determining their optical properties and cellular interactions.
A natural anthocyanin-based multifunctional theranostic agent for dual-modal imaging and photothermal anti-tumor therapy
Authors: Guo Chunyan , Sun Jinghua , Dong Jie , Cai Wenwen , Zhao Xuhui , Song Bin , Zhang Ruiping
Published: June 2021

A gadolinium ions-chelated natural anthocyanin nanoprobe for photoacoustic/magnetic resonance dual-modal imaging-guided tumor photothermal therapy.
Recent progress in artificial synaptic devices: materials, processing and applications
Authors: Chen Fandi , Zhou Yingze , Zhu Yanzhe , Zhu Renbo , Guan Peiyuan , Fan Jiajun , Zhou Lu , Valanoor Nagarajan , von Wegner Frederic , Saribatir Ed , Birznieks Ingvars , Wan Tao , Chu Dewei
Published: June 2021

This review focuses on recent development in artificial synaptic devices, including working principles, device structures, processing techniques, energy consumption, the functional materials of artificial synapses and applications.
Bronchopulmonary Dysplasia: New Research Insights on Infant Sucking and Feeding Development
Authors: Martens Alaina , Zimmerman Emily
Published: June 2021

Purpose

Bronchopulmonary dysplasia, or BPD, is a serious lung condition that mostly affects premature newborns who need prolonged oxygen therapy. Certain factors place infants at risk for developing BPD, including lung immaturity, poor nutrition, and need for mechanical ventilation as well as mothers with pregnancy-induced hypertension and maternal infection. Given that breathing is the foundation for sucking and feeding behaviors, infants with BPD have difficulty coordinating the suck–swallow–breathe pattern needed for successful feeding. This review article examines the current research on oral feeding in this population and clinical implications for speech-language pathologists.

Conclusion

By reviewing oral feeding and its relation to cardiorespiratory support, suck–swallow–breathe coordination, bottle-feeding behaviors, and gastroesophageal reflux, speech-language pathologists will gain valuable insights into current research findings, possible interventions, and suggestions for clinical practice when working with infants with BPD.
Study on Urban Landscape Green Space -- A Case Study of Longquanshan Park
Authors: Dai Huan , Li Wei , Zeng Yan , Zhang Xinyang
Published: June 2021

Studying on Qinglongshan Forest Park in Wuhan by typical plot method, 15 typical plots in the park were investigated, and the species richness index, diversity index, evenness index, frequency and important value index were calculated. The results showed that there were 139 species of woody plants belonging to 46 families and 97 genera, including 41 species of evergreen trees, 32 species of deciduous trees, 62 species of evergreen shrubs, 25 species of deciduous shrubs, and 4 species of bamboo belonging to 1 family, 3 genera. Species richness index and Simpson diversity index were all expressed as tree layer > shrub layer, evergreen species > deciduous species. Pielou evenness was tree layer > shrub layer. This study can provide some reference for understanding the existing plant status of forest parks, carrying out science popularization, scientific research, protection and improvement of forest landscape quality.
Acoustic Emission Test of Changlongshan Pumped Storage Power Station Steel Bifurcation Pipe
Authors: Ding Peng , Guan Lei , Qiu Congwei , Yang Chuansheng , Xu Ling
Published: June 2021

The maximum test load of Changlongshan pumped storage power station steel bifurcation pipe is 10MPa. To ensure the safety of the water pressure test, acoustic emission is used to monitor the main welds of the crescent rib steel bifurcation and main cone. Taking NO.3 pipe’s data as an example, acoustic emission source location system was used to find the possible position of harmful defects, through the activity and intensity of the acoustic emission sources to confirm the defect significance. After analysis, the acoustic emission integrated level of the steel bifurcation pipe is in level II, the pipe’s data comply with the design requirements.
Monitoring the changes in land use and landscape pattern in recent 20 years: A case study in Wuhan, China
Authors: Wang Yuwei , Wu Kaicheng , Gao Wang
Published: June 2021

Based on the land use data of 2000, 2010 and 2020, using GIS technology along with landscape ecology methods, this paper monitored the changes in land use and landscape pattern in Wuhan. The findings are as follows: (1) the main features of land use change in Wuhan were the expansion of urban area and the decline of cropland, forest, wetland and water in recent 20 years; (2) forest, wetland and water kept a transfer-out trend while urban kept a transfer-in trend; (3) the fragmentation degree of forest, grassland and urban landscapes decreased from 2000 to 2020; (4) the patch shapes of almost all landscapes tended to be more regular under the human interventions. It is thereby worth reducing the interference intensity of human activities on landscape pattern in the process of urban growth.
Experimental study and theoretical analysis on impact characteristics of single pile
Authors: Hu L , Li Q , Li X. Y. , Huang L Q
Published: June 2021

The impact characteristics of a single pile are the theoretical basis of the high-strain detection technology of piles and pile driving. Firstly, a series of pile model experiments are conducted to study the characteristics of single pile penetration, axial force and friction of the pile under impact loads of different rammer loads and falling distances. Then, the dynamic model of a single pile under impact load under the condition of pile-soil slippage was established by using the elastodynamic method, and the analytical solution of the pile axial force was obtained. The results show that the theoretical solution is in good agreement with the model test results. This shows that the completely bonded model without considering slippage overestimates the frictional resistance between the pile and soil, and the pile-soil slippage model can better simulate the impact of a single pile in sand.
Study on calculation method of stability for embedded penstocks with stiffener ring under external pressure
Authors: Wang Bifei , Li Yuewei , Qi Wenqiang , Wang Qihang
Published: June 2021

A three-dimensional FEM(finite element model)is established, including penstocks with initial defect (ovality), backfill concrete, drainage cushion and surrounding rock. The nonlinear static calculation of the model is carried out. The stability of penstocks with backfill concrete, drainage cushion and surrounding rock under external pressure is studied. The sensibility of the embedded penstocks to initial defect, initial gap and elastic modulus of drainage cushion is analyzed. The results of finite element method, Jacobsen method and strength formula in SL281 are compared and analyzed. The results indicate that the FEM of penstocks, backfill concrete and surrounding rock with initial defects is easy to converge by nonlinear calculation; the ovality and gap have little influence on the critical external pressure of the embedded penstocks with stiffener ring, while the drainage cushion has a certain influence on the critical external pressure; the critical external pressure calculated by SL281 is low and safe; compared with Jacobsen method, the critical external pressure of the finite element method is increased by about 14%; for the embedded penstocks with drainage cushion, the finite element method can be used to calculate the influence of the drainage cushion on the critical external pressure, and the appropriate reduction factor can be obtained, and then the Jacobsen result can be modified by the reduction factor.
Study on equivalent static method for the analysis of fatigue behavior of reinforced concrete beam
Authors: Liu Fangping , Yu Chen , Yi Wentao
Published: June 2021

In order to analyze the whole process of fatigue behaviours of reinforced concrete beams, an equivalent static analysis method is proposed in this paper. Firstly, the constitutive models based on the degradation of stiffness and strength and the accumulation of residual strain of concrete and reinforcement subjected to fatigue loadings are deduced and established by coupling the uniaxial constitutive model of concrete and the ideal elastic-plastic model of reinforcement under static load. Secondly, based on the similarity of concrete failure under static load and fatigue load, the equivalent relationship between fatigue and static analysis can be constructed by using the concrete residual strain as the equivalent parameter. On this basis, an equivalent static method for the analysis of fatigue behavior of reinforced concrete beam is proposed. At last, three reinforced concrete beams with rectangular section are tested, and the fatigue behaviours are analyzed by the method proposed in this paper. The numerical simulation results are compared with the field test data. The result shows that the numerical simulation results are in good agreement with the experimental results, which verifies the reliability and practicability of the method.
Numerical analysis of axial compressive behavior of RC short columns subjected to non-uniform fire: A meso-scale study
Authors: Li Xiaoya , Zhang Renbo , Jin Liu , Du Xiuli
Published: June 2021

The bearing capacity and durability of reinforced concrete (RC) structures can be affected by fire. In this study, a three-dimensional (3D) meso-scale simulation model for RC short column subjected to axial compression after exposure to fire was established. The degradation effect of mechanical properties of steel bars and concrete materials after high temperature was taken into account. The bond-slip behavior between longitudinal steel bars and concrete was also considered in the model. Based on the present simulation method, the failure mode and failure mechanism of the RC short columns were investigated. Moreover, the effects of fire scenario and fire duration on the axial compression performance of RC short columns were further investigated. It is found that the meso-scale numerical model can effectively simulate the mechanical behavior of RC short columns under axial load. Moreover, with the increase of fired surfaces and fire duration, the peak bearing capacity, axial compression stiffness and ductility decrease. The mechanical properties of short columns decrease more quickly under non-uniform fire. By comparing the theoretical value with the numerical simulation value of Nut/Nu, it is found that the theoretical value is conservative.
A methodology of risk assessment and management for a large industrial area
Authors: Peng Shiyuan
Published: June 2021

When investigating large industrial site with very limited site historical information and monitoring data, there will be many challenges to determine the remediation cost and strategy. Here the author illustrates a methodology of risk assessment management for large industrial area. Based on proper conceptual model and professional judgement, a score card for each single site can be generated, including the risk scores for the source, path and receptors. Eventually the score results of the sites can be presented on the overall map through different colour. It is an efficient and direct way which can help the decision maker to tell the priority of allocating the resource for site investigation. The ranking of the site’s score will also show an expected cost level of the sites, which could remind the developer to apply more economical strategy at early planning stage.
Research of the level of digital competencies of students of the University “Adriatic” Bar
Authors: Vukčević Nikola , Abramović Nikola , Perović Nataša
Published: June 2021

Latest EU guidelines for the implementation of Digital Competence Framework and adopted Action Plan for Digital Education (2021-2027) clearly identifies two basic strategic priorities - Encouraging the development of a successful digital education ecosystem and Development of digital skills and competencies for digital transformation, clearly indicate the importance of high quality, inclusive and affordable digital education in Europe. Today, European higher education main problem is the management of the digital transition. As Montenegro is one of the candidate countries for EU, we believe that this is very important and attractive research area. The paper deals with basic and advanced digital competencies development levels of students of University “Adriatic” Bar, seen as Montenegro’s and the EU’s future labour market staff. The results of empirical research shows the real level of students digital competencies in relation to the EU required level. The results shows whether the teaching practice of digital competencies development is sufficiently present at the University, certain limitations, reasons, and possibilities for further improvement. Today, digitalization directly affects the modern labour market. As a result, young people in Montenegro must have highly developed digital competencies, in order to remain competitive in the EU labour market.
Contemporary tendencies in higher education – application of artificial intelligence
Authors: Ilieva Raya
Published: June 2021

In the 21st century, artificial intelligence has undergone unprecedented development as a result of advances in computing power, the ability to accumulate, store and access vast amounts of data, as well as from a deeper theoretical understanding. This brings huge benefits to education, business and industry, where fundamental changes in attitudes, patterns of learning and the use of artificial intelligence to anticipate, monitor and manage risk in the dynamics of globalization and automation are observed. This article aims to explore the possibility of current trends in the development of digital technologies and globalization. The subject of the study is whether universities work in good coordination in order to be adequately prepared for the inevitable changes in society and the economy. Research methods that are used are general and specific, namely: normative, systematic, comparative analysis, induction and deduction The main task is to encourage universities to continue with their adaptation and development of their online distance learning systems, greater individualization of students’ academic development, rapid exchange and application of good practices in the processes of education, management and research.
DIW-MTA – „MR-Sicherheitsexperte/-in“
Authors: Pöttgens Nina
Published: June 2021

Die Magnetresonanztomografie (MRT)-Untersuchung gehört heutzutage zu den wichtigsten und aussagekräftigsten bildgebenden Verfahren und hat sich damit als diagnostisches Standardverfahren in Deutschland etabliert. Sie arbeitet ohne die für die meisten radiologischen Untersuchungen notwendige Röntgenstrahlung. Außerdem ist sie schmerzfrei und dank Neuerungen in der Gerätetechnik, sowie verbesserten Sequenz- und Untersuchungsprotokollen im Vergleich zu früher relativ schnell.
miRNA-483–5p Targets HDCA4 to Regulate Renal Tubular Damage
in Diabetic Nephropathy
Authors: Liu Lu , Chen Huanzhen , Yun Jie , Song Liqun , Ma Xiaopeng , Luo Shan , Song Yexu
Published: June 2021

This study was designed to evaluate the diagnostic value of miR-483–5p in
diabetic nephropathy (DN), and its effect and mechanism on apoptosis and
inflammation of human proximal renal tubular cells (HK2) induced by high glucose
(HG). Thirty healthy controls, 30 types 2 diabetes mellitus (T2DM) patients, and
28 DN patients were enrolled. miR-483–5p mRNA levels in serum were
analyzed by RT-qPCR assays. The receiver operating characteristic curve (ROC)
was used to analyze the diagnostic value of miR-483–5p in DN. HK2 cells
were induced by HG to establish an in vitro study model. CCK-8 and flow
cytometry was used to detect cell viability, apoptosis, and reactive oxygen
species (ROS) generation. Inflammation levels were measured by ELISA. Luciferase
reporter assay was used to detect target genes of miR-483–5p.
miR-483–5p was decreased in DN patients. The decreased level of
miR-483–5p was positively correlated with estimated glomerular
filtration rate (eGFR) and negatively correlated with proteinuria.
miR-483–5p can significantly distinguish DN patients from healthy
controls and T2DM and has a high diagnostic value. miR-483–5p decreased
in HK2 cells induced by HG, and overexpression of miR-483–5p reversed
HG-induced decreased cell activity, increased apoptosis, ROS production, and
inflammation. Histone deacetylase 4 (HDCA4) was markedly increased in DN
patients and HG-induced HK2 cells. miR-483–5p directly targeted HDCA4,
and increasing miR-483–5p inhibited HDCA4 increased in HG-induced HK2.
In conclusion, the results indicate that reduction of miR-483–5p has a
high diagnostic value in DN, and overexpression of miR-483–5p has a
certain protective effect on HK2 cells induced by HG by targeting HDCA4.
Dithienothiazine Copolymers – Synthesis and Electronic Properties of Novel Redox-Active Fluorescent Polymers
Authors: Nau Jennifer , Müller Thomas J. J.
Published: June 2021

Dithienothiazine copolymers are efficiently obtained by Suzuki polymerization or in situ lithiation–Negishi polymerization in good to excellent yields. Gel permeation chromatography was applied to characterize the dispersities and degrees of polymerization of these novel materials. Thermogravimetric analysis shows that the copolymers are stable towards side-chain cleavage up to 200 °C. The materials are deep red to black amorphous solids or resins and their absorption and emission spectra in solution reveal broad absorption bands in the visible and orange to deep red luminescence upon UV excitation. According to the optical band gaps these novel copolymers qualify as a new class of low band gap organic semiconductors.
Oral Cavity: A Forensic Kaleidoscope
Authors: Darwin Deepthi , Sakthivel Soundarya , Castelino Renita Lorina , Babu Gogineni Subhas , Asan Mohamed Faizal , Sarkar Anand Shankar
Published: June 2021

Forensic odontology is an integral part of the multidisciplinary field of forensic sciences that requires specialized training and perceptive knowledge for its application in full potential. Forensic odontology deals with the evidence pertaining to the oral and paraoral structures. Dentists are equipped with knowledge of orofacial structures and their variations prevailing among different ancestry. By implicating the history of dental treatments to the identification process, dentists extract unique and accurate information that aids in forensic identification. Crimes such as child abuse and domestic violence are often identified by the dentists during routine dental examinations and this can be used as an evidence to discern malefactors in such cases. This article provides a collective review of applications and methods in forensic odontology that helps legal authorities in the identification of individuals.
Optical coupling between a single tin-vacancy center and a photonic crystal cavity in diamond
Authors: McConnon Aili
Published: June 2021

16-fold enhancement of spontaneous emission rate of a single new color center in diamond is achieved using a high-quality factor photonic crystal nanocavity for efficient spin-photon interfaces.
Detecting SARS-CoV-2 with a rapid, cost-effective colorimetric biosensor
Authors: Kim Meeri
Published: June 2021

Simulation results demonstrate the necessary requirements for a colorimetric biosensor for the accurate detection of the virus that causes COVID-19.
Quantum broadcast channels with cooperating decoders: An information-theoretic perspective on quantum repeaters
Authors: Pereg Uzi , Deppe Christian , Boche Holger
Published: June 2021

Communication over a quantum broadcast channel with cooperation between the receivers is considered. The first form of cooperation addressed is classical conferencing, where receiver 1 can send classical messages to receiver 2. Another cooperation setting involves quantum conferencing, where receiver 1 can teleport a quantum state to receiver 2. When receiver 1 is not required to recover information and its sole purpose is to help the transmission to receiver 2, the model reduces to the quantum primitive relay channel. The quantum conferencing setting is intimately related to quantum repeaters as the sender, receiver 1, and receiver 2 can be viewed as the transmitter, the repeater, and the destination receiver, respectively. We develop lower and upper bounds on the capacity region in each setting. In particular, the cutset upper bound and the decode-forward lower bound are derived for the primitive relay channel. Furthermore, we present an entanglement-formation lower bound, where a virtual channel is simulated through the conference link. At last, we show that as opposed to the multiple access channel with entangled encoders, entanglement between decoders does not increase the classical communication rates for the broadcast dual.
Experimental study of one-step overall transportation of composite bucket foundation for offshore wind turbine under the coupled dynamic action of wave and current
Authors: Lian Jijian , Wang Pengwen , Wang Haijun , Guo Yaohua , Xu Yang , Ye Fangdi , Yang Yilin
Published: June 2021

Composite bucket foundations have been transported, installed, and operated successfully and economically by the one-step overall transportation method at Qidong, Xiangshui, and Dafeng offshore wind farms in China in recent decades. This study develops a novel analysis method of the structure and transportation mode on the towing system to enhance the stability and efficiency of the transportation system. The experimental setup and some primary results of the towing tank tests during the transportation operation, focusing on the system's responses, would be shared. The factors influencing the responses of the system in different directions under the action of wave–current coupling are determined. The method to estimate the actual responses is found through the experimental results, making the actual transportation and installation process easier.
Effect of water models on structure and dynamics of lignin in solution
Authors: Huda Md Masrul , Jahan Nusrat , Rai Neeraj
Published: June 2021

Lignin, a major biomass component, can be an excellent source for different monomers in the polymer industry. However, the complex and heterogeneous structure of lignin poses a significant challenge for designing energy-efficient processes for depolymerization. As many proposed depolymerization processes are solvothermal, it is essential to understand the structure and dynamics of lignin in solution, in particular aqueous solution. Here, we utilize molecular dynamics simulations to understand the effect of water models on the structure and dynamics of different model lignin oligomers (softwood and hardwood) as a function of temperature. We have examined three different water models: TIP3P, TIP4P/Ew, and flexible SPC/Fw. We find that the diffusion constant of lignin oligomers in an aqueous solution differs significantly depending on the water model used. The diffusion constant of lignin in the TIP3P water model is almost twice as large as that in SPC/Fw and TIP4P/Ew. The softwood and hardwood oligomers adopt an extended structure in TIP3P water compared to SPC/Fw and TIP4P/Ew. Given the different levels of sensitivity of transport and structural properties of aqueous lignin on water models, it is important to take these into account when discussing results from a specific water model.
Pure single-photon emission from an InGaN/GaN quantum dot
Authors: Holmes M. J. , Zhu T. , Massabuau F. C.-P. , Jarman J. , Oliver R. A. , Arakawa Y.
Published: June 2021

Single-photon emitters with high degrees of purity are required for photonic-based quantum technologies. InGaN/GaN quantum dots are promising candidates for the development of single-photon emitters but have typically exhibited emission with insufficient purity. Here, pulsed single-photon emission with high purity is measured from an InGaN quantum dot. A raw g(2)(0) value of 0.043 ± 0.009 with no corrections whatsoever is achieved under quasi-resonant pulsed excitation. Such a low value is, in principle, sufficient for use in quantum key distribution systems.