bluuebunny/crossref_metadata_2025 huggingface dataset:
Nanoparticle and microorganism detection with a side-micron-orifice-based resistive pulse sensor
Authors: Song Yongxin , Zhou Tong , Liu Qinxin , Liu Zhijian , Li Dongqing
Published: June 2020

This paper presents the detection of nanoparticles and microorganisms using a recently developed side-orifice-based resistive pulse sensor (SO-RPS).
Ultraviolet-visible diffuse reflectance spectroscopy combined with chemometrics for rapid discrimination of Angelicae Sinensis Radix from its four similar herbs
Authors: Bian Xihui , Lu Zhankui , van Kollenburg Geert
Published: June 2020

Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) combined with chemometrics was used for the first time to differentiate Angelicae Sinensis Radix (ASR) from four other similar herbs (either from the same genus or of similar appearance).
Layered-structure (NH4)2Mo4O13@N-doped porous carbon composite as a superior anode for lithium-ion batteries
Authors: Guo Ling , Cao Liyun , He Juju , Huang Jianfeng , Li Jiayin , Kajiyoshi Koji , Chen Shaoyi
Published: June 2020

Novel layered-structure (NH4)2Mo4O13@N-doped porous carbon undergoes intercalation and conversion reaction mechanism with diffusion-controlled Li storage behaviour, exhibiting obvious competition in Li storage performance.
Glass engineering of aminotriazine-based materials with sub-ambient Tg and high kinetic stability
Authors: Kara Ali Zeinab , Iankovitch Anna , Jokar Mahboubeh , Maris Thierry , Lebel Olivier , Pellerin Christian
Published: June 2020

Designing molecular glasses with phenyl rings favors a lower Tg and higher glass stability compared to cyclohexyl analogues.
1-(2-Methoxyphenyl)-3-phenyl-1,4-dihydro-1,2,4-benzotriazin-4-yl: a tricky “structure-to-magnetism” correlation aided by DFT calculations
Authors: Bazzi Fadwat , Danke Alexander J. , Lawson Daniel B. , Manoli Maria , Leitus Gregory M. , Koutentis Panayiotis A. , Constantinides Christos P.
Published: June 2020

1-(2-Methoxyphenyl)-3-phenyl-1,4-dihydro-1,2,4-benzotriazin-4-yl (2) is a Blatter radical with a challenging structure-to-magnetism correlation.
Influence of stepwise oxidation on the structure, stability, and properties of planar pentacoordinate carbon species CAl5+
Authors: Sun Rui , Zhao Xue-Feng , Jin Bo , Huo Bin , Bian Jian-Hong , Guan Xiao-Ling , Yuan Caixia , Wu Yan-Bo
Published: June 2020

DFT studies revealed that the planar pentacoordinate carbon (ppC) structure of CAl5+ can survive in the presence of five oxygen atoms.
Visible-light responsive BiNbO4nanosheet photoanodes for stable and efficient solar-driven water oxidation
Authors: Arunachalam Maheswari , Ahn Kwang-Soon , Kang Soon Hyung
Published: June 2020

BiNbO4nanosheet photoelectrode generates efficient water oxidation in an aqueous environment.
Spontaneous mirror symmetry breaking: an entropy production survey of the racemate instability and the emergence of stable scalemic stationary states
Authors: Ribó Josep M. , Hochberg David
Published: June 2020

Stability of non-equilibrium stationary states and spontaneous mirror symmetry breaking, provoked by the destabilization of the racemic thermodynamic branch, is studied for enantioselective autocatalysis in an open flow system, and for a continuous range n of autocatalytic orders.
Assessing disinfection byproduct risks for algal impacted surface waters and the effects of peracetic acid pre-oxidation
Authors: Kralles Zachary T. , Ikuma Kaoru , Dai Ning
Published: June 2020

Peracetic acid pre-oxidation of algal impacted waters can reduce formation of trihalomethanes but promote formation of haloacetonitriles, due to the degradation of dissolved organic matter and coincident release of intracellular organic matter.
In vitrofermentation potential of the residue of Korean red ginseng root in a mixed culture of swine faecal bacteria
Authors: Han Kyu-Ho , Enomoto Misaki , Pelpolage Samanthi , Nagata Ryuji , Fukuma Naoki , Fukushima Michihiro
Published: June 2020

The ginseng residue could positively affect colonic fermentation, and the microbial community diversities, the relative abundance of bacteria, SCFA production exceptn-butyrate, and pH of this residue were quite different from those of cellulose.
The influence of traditional and new processing technologies on the structure and function of food polysaccharide
Authors: Benchamas Gunsriwiang , Huang Shiyu , Huang Gangliang
Published: June 2020

The influence of traditional processing technologies and new technologies on the structure and function of food polysaccharide was investigated and discussed.
Fish oil extracted from Coregonus peled improves obese phenotype and changes gut microbiota in a high-fat diet-induced mouse model of recurrent obesity
Authors: Qin Ningbo , Song Guoku , Ren Xiaomeng , Zhang Lihua , Gao Jingzhu , Xia Xiaodong , Zhu Beiwei
Published: June 2020

The potential modulatory effect of fish oil from Coregonus peled on recurrent obese mice by influencing persistent microbiome alterations.
Transferring photocatalytic CO2 reduction mediated by Cu(N^N)(P^P)+ complexes from organic solvents into ionic liquid media
Authors: Forero-Cortés Paola A. , Marx Maximilian , Moustakas Nikolaos G. , Brunner Fabian , Housecroft Catherine E. , Constable Edwin C. , Junge Henrik , Beller Matthias , Strunk Jennifer
Published: June 2020

Photocatalytic carbon dioxide reduction utilizing metal complexes based on the earth-abundant transition metals iron and copper was transferred from organic solvents into ionic liquids with high selectivity and moderate turn-over numbers.
Development of tuneable green-to-red emitting transparent film based on Nafion with TbIII/EuIII β-diketonate complexes modulated by pH and proton flow
Authors: Kamebuchi Hajime , Yoshioka Taiho , Tadokoro Makoto
Published: June 2020

Multicolour luminescence of a transparent emitter has been finely tuned through pH adjustment and external-voltage induced proton conduction in Nafion membrane.
Flexible transparent graphene laminates via direct lamination of graphene onto polyethylene naphthalate substrates
Authors: Serrano Ismael G. , Panda J. , Edvinsson Tomas , Kamalakar M. Venkata
Published: June 2020

A direct lamination method for large-scale flexible graphene laminates.
A solar-responsive zinc oxide photoanode for solar-photon-harvester photoelectrochemical (PEC) cells
Authors: Dom Rekha , Govindarajan Sivakumar , Joshi Shrikant V. , Borse Pramod H.
Published: June 2020

Deposition of highly efficient, nanostructured, solar-responsive ZnO (SRZO) photoanode for H2 generation by solution precursor plasma spray deposition technique. In PEC Cell, SRZO shows a STH conversion efficiency of 2.32% as seen by evolved H2.
Nano-micronutrients [γ-Fe2O3 (iron) and ZnO (zinc)]: green preparation, characterization, agro-morphological characteristics and crop productivity studies in two crops (rice and maize)
Authors: Kasivelu Govindaraju , Selvaraj Tamilselvan , Malaichamy Kannan , Kathickeyan D. , Shkolnik Doron , Chaturvedi Sumit
Published: June 2020

Nanotechnology based fertilizer production possessing the desired chemical composition, can improve plant nutrition and may reduce the environmental impact and enhance the plant productivity.
Friction of physisorbed nanotubes: rolling or sliding?
Authors: Mandelli Davide , Guerra Roberto
Published: June 2020

Rolling is the preferential motion of laterally pushed nanotubes (NT). Sliding can occur for multi-walled NT that form incommensurate interfaces. A peculiar supra-linear scaling of dynamic friction with NT size is observed in rolling multi-walled NT.
MoS2-on-paper optoelectronics: drawing photodetectors with van der Waals semiconductors beyond graphite
Authors: Mazaheri Ali , Lee Martin , van der Zant Herre S. J. , Frisenda Riccardo , Castellanos-Gomez Andres
Published: June 2020

We open up the possibility of fabricating devices based on van der Waals materials on standard copier paper using a process similar to the action of drawing/writing with a pencil on paper.
An active carbon-nanotube polarizer-embedded electrode and liquid-crystal alignment
Authors: Kim Tae Hyung , Park Jong Gil , Kim Yul Ki , Lim Young Jin , Kang Jae-Wook , Kim Eun Sung , Kwon Jeong Yong , Lee Young Hee , Lee Seung Hee
Published: June 2020

We report a method for constructing an active optical polarizer using a polymer embedded aligned carbon nanotube (CNT) sheet that is flexible, bendable, transparent, conductive, and also serves to anchor liquid-crystal (LC) molecules.
Targeted GSH-exhausting and hydroxyl radical self-producing manganese–silica nanomissiles for MRI guided ferroptotic cancer therapy
Authors: Fei Weidong , Chen Danfei , Tang Hongxia , Li Chaoqun , Zheng Weizeng , Chen Fengying , Song Qianqian , Zhao Yunchun , Zou Yu , Zheng Caihong
Published: June 2020

An innovative ferroptosis-inducing strategy integrating GSH exhaustion and ROS generation for cancer therapy.
Encapsulation of 3D plasmonic nanostructures with ultrathin hydrogel skin for rapid and direct detection of toxic small molecules in complex fluids
Authors: Kim Sunho , Choi Wook , Kim Dong Jae , Jung Ho Sang , Kim Dong-Ho , Kim Shin-Hyun , Park Sung-Gyu
Published: June 2020

3D hierarchical plasmonic nanostructures are encapsulated with an ultrathin hydrogel skin to directly detect small molecules in complex mixtures without pretreatment of samples.
Size- and temperature-dependent photoluminescence spectra of strongly confined CsPbBr3 quantum dots
Authors: Cheng Oscar Hsu-Cheng , Qiao Tian , Sheldon Matthew , Son Dong Hee
Published: June 2020

Lead-halide perovskite nanocrystals (NCs) are receiving much attention as a potential high-quality source of photons due to their superior luminescence properties in comparison to other semiconductor NCs.
Plasmon-assisted grafting of anisotropic nanoparticles – spatially selective surface modification and the creation of amphiphilic SERS nanoprobes
Authors: Olshtrem Anastasiya , Guselnikova Olga , Postnikov Pavel , Trelin Andrey , Yusubov Mekhman , Kalachyova Yevgeniya , Lapcak Ladislav , Cieslar Miroslav , Ulbrich Pavel , Svorcik Vaclav , Lyutakov Oleksiy
Published: June 2020

Plasmon-based route for the spatially selective grafting of anisotropic gold nanorods (AuNRs) and creation of amphiphilic nanoparticles is proposed.
Tunneling-current-induced local excitonic luminescence in p-doped WSe2monolayers
Authors: Peña Román Ricardo Javier , Auad Yves , Grasso Lucas , Alvarez Fernando , Barcelos Ingrid David , Zagonel Luiz Fernando
Published: June 2020

Probing and controlling excitonic species in a 2D-semiconductor on a metallic support using tunneling electrons as a nanoscale excitation source.
Metasurface-enabled broadband beam splitters integrated with quarter-wave plate functionality
Authors: Ding Fei , Deshpande Rucha , Meng Chao , Bozhevolnyi Sergey I.
Published: June 2020

Metasurface-enabled broadband beam splitters integrated with quarter-wave plate functionality for simultaneous power splitting and circular-to-linear polarization conversion have been demonstrated.
Glutathione-adaptive peptide amphiphile vesicles rationally designed using positionable disulfide-bridges for effective drug transport
Authors: Kim Hayeon , Kim Inhye , Hwang Jun Ho , Park Jaehyun , Ahn Hyungju , Han Eun Hee , Lee Eunji
Published: June 2020

The drug loading/releasing capability of GSH-responsive nanovesicles self-assembled from peptide amphiphiles was controlled by varying the location and number of disulfide-linkages in the peptide for the selective drug-release into tumor cells.
Nitrogen-doped LaZrTa3O11 as a visible light-active photocatalyst for water-reduction and -oxidation reactions
Authors: Wei Shunhang , Xu Xiaoxiang
Published: June 2020

Nitrogen doping red-shifted the absorption edge of LaZrTa3O11 markedly and induced visible-light activity for photocatalytic water-reduction and -oxidation reactions.
The first connection of carbonyl-bridged triarylamine and diketopyrrolopyrrole functionalities to generate a three-dimensional, non-fullerene electron acceptor
Authors: Jadhav Ratan W. , Hangarge Rahul V. , Aljabri Mahmood D. , More Kerba Shivaji , Chen Jing-Yu , Jones Lathe A. , Evans Richard A. , Li Jing-Liang , Bhosale Sheshanath V. , Gupta Akhil
Published: June 2020

Carbonyl-bridged triarylamine-based, three-dimensional non-fullerene acceptor (R1); device: ITO/PEDOT:PSS/PTB7: R1 (1: 1.2)/Ca/Al; PCE = 9.33%
Synergistic effect of trivalent (Gd3+, Sm3+) and high-valent (Ti4+) co-doping on antiferromagnetic YFeO3
Authors: Bharadwaj P. S. J. , Kundu Swarup , Kollipara Vijay Sai , Varma Kalidindi B. R.
Published: June 2020

The work investigates the impact of doping (Sm3+, Gd3+at Y3+site and Ti4+at Fe3+site respectively) on structural, optical and magnetic properties of YFeO3.
Laser-induced crystallization of anodic TiO2nanotube layers
Authors: Sopha Hanna , Mirza Inam , Turčičova Hana , Pavlinak David , Michalicka Jan , Krbal Milos , Rodriguez-Pereira Jhonatan , Hromadko Ludek , Novák Ondřej , Mužík Jiří , Smrž Martin , Kolibalova Eva , Goodfriend Nathan , Bulgakova Nadezhda M. , Mocek Tomáš , Macak Jan M.
Published: June 2020

Laser treatment of amorphous TiO2nanotube layers leads to their crystallization without deformation or formation of the thermal oxide layer.
Synthesis of micro–mesoporous ZSM-5 zeolite with microcrystalline cellulose as co-template and catalytic cracking of polyolefin plastics
Authors: Yu Hongchang , Li Fuwei , He Wen , Song Caifeng , Zhang Yansong , Li Zhixia , Lin Hongfei
Published: June 2020

Microcrystalline cellulose as co-template enhances the formation of mesopores and strong acid sites in ZSM-5 zeolites.
Preparation of quercetin–nicotinamide cocrystals and their evaluation under in vivo and in vitro conditions
Authors: Wu Na , Zhang Yan , Ren Jian , Zeng Aiguo , Liu Juntian
Published: June 2020

Quercetin is a flavonoid abundant in the plant kingdom.
Facile simultaneous synthesis of tetraaniline nanostructures/silver nanoparticles as heterogeneous catalyst for the efficient catalytic reduction of 4-nitrophenol to 4-aminophenol
Authors: Botsa Sathish Mohan , Kumar Yarramsetti Pavan , Basavaiah Keloth
Published: June 2020

Nanocomposites of tetraaniline/silver nanoparticles were synthesised using an interfacial polymerisation method. The catalytic activity was investigated for the model reduction of 4-nitrophenol to 4-aminophenol in the presence of excess sodium borohydride.
Cellulose nanofiber-based electrode as a component of an enzyme-catalyzed biofuel cell
Authors: Tominaga Masato , Kuwahara Kazufumi , Tsushida Masayuki , Shida Kenji
Published: June 2020

Cellulose nanofiber-based biofuel cell with flexible, biodegradable, eco-friendly.
Natural product diversity from the endophytic fungi of the genusAspergillus
Authors: El-hawary Seham S. , Moawad Abeer S. , Bahr Hebatallah S. , Abdelmohsen Usama Ramadan , Mohammed Rabab
Published: June 2020

The endophytic fungusAspergillusis the precious source of chemical biodiversity.
A cobalt phosphide catalyst for the hydrogenation of nitriles
Authors: Mitsudome Takato , Sheng Min , Nakata Ayako , Yamasaki Jun , Mizugaki Tomoo , Jitsukawa Koichiro
Published: June 2020

A well-defined nano-cobalt phosphide serves as an air-stable, highly active and reusable heterogeneous catalyst for the selective hydrogenation of nitriles to primary amines under mild reaction conditions.
Integrating single Ni sites into biomimetic networks of covalent organic frameworks for selective photoreduction of CO2
Authors: Chen Xin , Dang Qiang , Sa Rongjian , Li Liuyi , Li Lingyun , Bi Jinhong , Zhang Zizhong , Long Jinlin , Yu Yan , Zou Zhigang
Published: June 2020

Fabrication of biomimetic photocatalytic systems consisting of PI-COFs and molecular Ni complexes for selective reduction of CO2is demonstrated.
Modulation of charge transfer by N-alkylation to control photoluminescence energy and quantum yield
Authors: Turley Andrew T. , Danos Andrew , Prlj Antonio , Monkman Andrew P. , Curchod Basile F. E. , McGonigal Paul R. , Etherington Marc K.
Published: June 2020

A versatile N-alkylation strategy controls the presence of charge-transfer excited states and the emission colour of N-heterocyclic chromophores.
Oxidative desulfurization catalyzed by a novel ZrP/MCM-41 catalyst with high performance
Authors: Zhang Panpan , Kang Lihua , Zhu Mingyuan , Dai Bin
Published: June 2020

The excellent catalytic performance of the ZrP/MCM-41 catalyst in oxidative desulfurization was attributed to the Zr–OH sites.
Vacancy mediated Z-scheme charge transfer in a 2D/2D La2Ti2O7/g-C3N4 nanojunction as a bifunctional photocatalyst for solar-to-energy conversion
Authors: Wang Kai , Jiang Lisha , Wu Xiaoyong , Zhang Gaoke
Published: June 2020

A vacancy induced 2D/2D Z-scheme bifunctional photocatalyst La2Ti2O7/g-C3N4 was constructed and applied for enhanced solar-to-energy conversion.
NIR-responsive reversible phase transition of supramolecular hydrogels for tumor treatment
Authors: Zhang Ting , Liu Zhiyu , Aslan Hüsnü , Zhang Chunhua , Yu Miao
Published: June 2020

We report injectable supramolecular hydrogels as high-load drug carriers, which achieve the synergy of chemotherapy and photothermal treatment for cancer.
Merging individual metal nanostructures into a superstructure for plasmon mode hybridization and electric-field nanofocusing
Authors: Zhao Zhihao , Xu Guoheng , Zhang Jiaming , Zhang Yongliang , Liu Jie , Lyu Shuangbao , Cheng Hongwei , Lei Dangyuan , Duan Jinglai
Published: June 2020

A new design principle by merging individual metal nanostructures into a superstructure is proposed. As a model demonstration, a nanoring-nanocone merged structure is elaborated and such structure exhibits extraordinary plasmonic properties.
A flexible, multifunctional, active terahertz modulator with an ultra-low triggering threshold
Authors: Ma He , Wang Yu , Lu Rong , Tan Fangrui , Fu Yulan , Wang Guang , Wang Dayong , Liu Kai , Fan Shoushan , Jiang Kaili , Zhang Xinping
Published: June 2020

Flexible, multifunctional, active THz modulators with ultra-low triggering threshold were developed by aligned carbon nanotube thin films coated with VO2. These active THz modulators find applications in THz communication and THz imaging.
Partnership across continents: the AuthorAID network
Authors: Harris Siân
Published: June 2020

Many academics have experienced the difficulty of getting their first grant or getting their first papers published. Imagine the added complexity if you are based in the ‘Global South’. Siân Harris talks to three African biochemists who are part of the AuthorAID network about their research experiences and how AuthorAID can help address some of the inequities within the global research system.
Training Complements for Belief Reasoning in Developmental Language Disorder
Authors: Durrleman Stephanie , Delage Hélène
Published: June 2020

Purpose

Children with developmental language disorder (DLD) experience difficulties with an important Theory of Mind milestone, namely, false belief (FB) reasoning. Their FB success relates to mastery of a linguistic structure that is also challenging for them, namely, sentential complements (e.g.,Claire says/thinks [that Santa Claus exists]). Training typically developing (TD) children on complements has been shown to boost complements and, in turn, enhance FB, but such training has never been explored with children with DLD, which is the aim of the current study.

Method

Fifty French-speaking children followed a novel training program: 30 with DLD (Mage= 7;3) and 20 TD (Mage= 4;3). They engaged in iPad applications targeting complementation with verbs of communication (e.g.,say, shout, answer) during eight to 12 sessions lasting 30 min. Training commenced within 1–2 weeks of pretests and ceased 1–2 weeks before immediate posttests. After immediate posttests, the majority of children were available to be tested with follow-up tests after 4–6 weeks of no training.

Results

Findings revealed that both TD and DLD groups benefited from the training to significantly improve their complementation and FB scores. The gains achieved during immediate posttests were moreover maintained 6–8 weeks after training ceased, as revealed by preserved levels of performance during follow-up posttests.

Conclusion

This research thus suggests new avenues for therapeutic interventions for children with DLD, namely, the incorporation of a program directly training complements, which holds the promise of a double benefit, both for these structures and for Theory of Mind.
Charge trapped mechanism for semi‐crystalline polymer electrets: quasi‐dipole model
Authors: Chen Gangjin , Zhang Jianfeng , Shi Xiaoyan , Peng Huili , Chen Xi
Published: June 2020

Polymer electrets are increasingly getting application in a very wide range. However, its charge trapped mechanism is still poorly understood. It is always challenging how to improve its charge trapped ability and to enhance its performance stability. In this study, a charge trapped mechanism, quasi‐dipole model, is proposed for semi‐crystalline polymer electrets. Every grain of crystallite is viewed as a dipole based on the polarisation effect between crystalline and amorphous region when charged. The energy level of the charge trap has a dependence on the crystallite structure. The more regular the crystallite grain structure the better charge stability is. The melt‐blown polypropylene (MBPP) electret fabrics with α or mesomorphic crystallite are used as the model material to verify the rationality of the mechanism. The experiment results from thermally stimulating discharge and X‐ray diffraction proved that the charge‐trapped stability could be improved by means of transformation from meso‐crystalline to α crystalline structure. The MBPP fabric containing α‐crystallite shows much better charge trapped performance than one containing mesomorphic‐crystallite because of more regular structure in α crystallite. The findings not only present new insight into charge‐trapped phenomena in polymer electrets, but also provide innovation for the processing technology of polymer electret materials.
Design of reconfigurable circularly polarised double folded inverted‐L antenna with rectangular ground plane using HFSS
Authors: Praveen Kumar Padakandla Chenna , Trinatha Rao Polipalli
Published: June 2020

A novel design of reconfigurable circularly polarised antenna is proposed and developed in the present work. The circularly polarised antenna consists of two linearly polarised inverted‐L antenna elements with double‐folded arms. To improve the impedance matching and radiation characteristics, the double‐folded structure plays a significant role. Circular polarisation is achieved by properly adjusting the lengths of two arms, quadrature currents can be produced on two orthogonal elements. The developed linearly polarised antenna elements are low‐profile and small in size, the circularly polarised antenna structure is minimised to be about 70 mm in length, 70 mm width and 18 mm in height (70 × 70 × 18 mm). The feeding configuration is simplified by using coaxial probe instead of an external polariser, better values are obtained between the theoretical calculations and simulated results, which validate the design concept. The designed reconfigurable circularly polarised double folded inverted‐L antenna is compared with twin inverted‐L shaped structure. The simulated results show that the circularly polarised antenna resonates at 2.39 GHz and has a wide impedance bandwidth of 6.00% S 11 with −32.16 dB and VSWR<2 and 3 dB axial ratio of 1.2 across the entire operating band.
Erosion of planetesimals by gas flow
Authors: Schaffer Noemi , Johansen Anders , Cedenblad Lukas , Mehling Bernhard , Mitra Dhrubaditya
Published: June 2020

The first stages of planet formation take place in protoplanetary disks that are largely made up of gas. Understanding how the gas affects planetesimals in the protoplanetary disk is therefore essential. In this paper, we discuss whether or not gas flow can erode planetesimals. We estimated how much shear stress is exerted onto the planetesimal surface by the gas as a function of disk and planetesimal properties. To determine whether erosion can take place, we compared this with previous measurements of the critical stress that a pebble-pile planetesimal can withstand before erosion begins. If erosion took place, we estimated the erosion time of the affected planetesimals. We also illustrated our estimates with two-dimensional numerical simulations of flows around planetesimals using the lattice Boltzmann method. We find that the wall shear stress can overcome the critical stress of planetesimals in an eccentric orbit within the innermost regions of the disk. The high eccentricities needed to reach erosive stresses could be the result of shepherding by migrating planets. We also find that if a planetesimal erodes, it does so on short timescales. For planetesimals residing outside of 1 au, we find that they are mainly safe from erosion, even in the case of highly eccentric orbits.
Properties of brightest group galaxies in cosmic web filaments
Authors: Kuutma Teet , Poudel Anup , Einasto Maret , Heinämäki Pekka , Lietzen Heidi , Tamm Antti , Tempel Elmo
Published: June 2020

Context. The cosmic web, a complex network of galaxy groups and clusters connected by filaments, is a dynamical environment in which galaxies form and evolve. However, the impact of cosmic filaments on the properties of galaxies is difficult to study because of the much more influential local (galaxy-group scale) environment.

Aims. The aim of this paper is to investigate the dependence of intrinsic galaxy properties on distance to the nearest cosmic web filament, using a sample of galaxies for which the local environment is easily assessable.

Methods. Our study is based on a volume-limited galaxy sample with Mr ≤ −19 mag, drawn from the SDSS DR12. We chose brightest group galaxies (BGGs) in groups with two to six members as our probes of the impact of filamentary environment because their local environment can be determined more accurately. We use the Bisous marked point process method to detect cosmic-web filaments with radii of 0.5−1.0 Mpc and measure the perpendicular filament spine distance (Dfil) for the BGGs. We limit our study to Dfil values up to 4 Mpc. We use the luminosity density field as a tracer of the local environment. To achieve uniformity of the sample and to reduce potential biases we only consider filaments longer than 5 Mpc. Our final sample contains 1427 BGGs.

Results. We note slight deviations between the galaxy populations inside and outside the filament radius in terms of stellar mass, colour, the 4000 Å break, specific star formation rates, and morphologies. However, all these differences remain below 95% confidence and are negligible compared to the effects arising from local environment density.

Conclusions. Within a 4 Mpc radius of the filament axes, the effect of filaments on BGGs is marginal. The local environment is the main factor in determining BGG properties.
First apsidal motion and light curve analysis of 162 eccentric eclipsing binaries from LMC
Authors: Zasche P. , Wolf M. , Kučáková H. , Kára J. , Merc J. , Zejda M. , Skarka M. , Janík J. , Kurfürst P.
Published: June 2020

We present an extensive study of 162 early-type binary systems located in the LMC galaxy that show apsidal motion and have never been studied before. For the ample systems, we performed light curve and apsidal motion modelling for the first time. These systems have a median orbital period of 2.2 days and typical periods of the apsidal motion were derived to be of the order of decades. We identified two record-breaking systems. The first, OGLE LMC-ECL-22613, shows the shortest known apsidal motion period among systems with main sequence components (6.6 years); it contains a third component with an orbital period of 23 years. The second, OGLE LMC-ECL-17226, is an eccentric system with the shortest known orbital period (0.9879 days) and with quite fast apsidal motion period (11 years). Among the studied systems, 36 new triple-star candidates were identified based on the additional period variations. This represents more than 20% of all studied systems, which is in agreement with the statistics of multiples in our Galaxy. However, the fraction should only be considered as a lower limit of these early-type stars in the LMC because of our method of detection, data coverage, and limited precision of individual times of eclipses.
Phosphorus leaching from substrates commonly used in rain gardens
Authors: Karczmarczyk Agnieszka , Kaminska Marta
Published: June 2020

Rain gardens are not yet a very popular solution in Poland but their number in cities is steadily growing. They are a measure of adaptation of cities to climate change. Rain gardens can be effective in rainwater retention and delaying runoff or groundwater recharge via infiltration. Among the benefits, also rainwater purification function is often suggested. The aim of the study was (1) to analyze potential phosphorus leaching from construction materials sampled from two rain gardens, and (2) to assess the quality of effluent from multi-layered rain garden in container. Results showed that materials commonly used in filling up rain gardens (sand and gravel) can be a significant source of phosphorus in filtered rainwater. Concentration of phosphorus in both, roof runoff and effluent from multi-layerded rain garden, show different patterns in different series. These preliminary studies show the need of continuous monitoring of existing rain gardens, as well as responsible selection of filter materials for newly built ones.
The game to promote the capability of reducing, reuse and recycling waste
Authors: Rodrigues Elsa , Bruno Luís
Published: June 2020

This work aims to raise awareness of environmental problems through interactive means, which, today, are much more appealing than the traditional ones to the academic community. To better inform community members of the importance of the 3Rs – Reduce, Reuse and Recycle, it was decided to develop an interactive 3D game, accessible through the Word Wide Web. This game includes 3 different activities which can be played in any order: solid waste recycling, saving water, and saving electricity. A small group of people evaluated the games; all participants were familiar with video games. It should be noted that the tests carried out focused only on the usability and interactivity of the game – the impact of the game at the 3Rs level – Reduce, Reuse and Recycle – has not been tested yet. The game makes the user more aware of the physical space where he moves (the school), showing his progress in real time. At the end of the game, the user is presented with the total time he took to finish his tasks and the total score achieved. In this way, the game becomes more interesting to the user.
A web system to engage people to reducing the environmental footprint of a school
Authors: Bruno Luís , Rodrigues Elsa
Published: June 2020

This paper describes the development study of a solution to promote the Eco-Schools program for a higher school (ESTIG). The solution should communicate the actions and results of the Eco-Schools program, raise awareness from school all members to environmental education and involve the school community to save resources and to make selective waste collection through their monitoring. This Web system is composed by a front-office and a back-office and was developed according to principles and techniques of the software engineering area. The front-office were validated through user tests with 23 participants. In general, for generic tasks participants found the system easy to use and it was efficient and effective. For a more complex tasks participants had more difficulties to use and the system didn’t present so efficient and effective. There is a space to improve this system in order to involve more school members to environmental protection and education extended to other schools.
Trends in tidal power development
Authors: Boretti Alberto
Published: June 2020

Tidal energy has been around for almost 2, 000 years, as the first Tide Mills date the Romans times. Tidal power generation then emerged in the 1960s, with the construction of the 240 MW La Rance power station, a still working example of good renewable energy initiative, permitting electricity production at very competitive costs since now more than 54 years. Unfortunately, apart from the construction in 2011 of a similar plant based on the tidal range technology, the 254 MW Sihwa Lake power station, almost nothing else happened in the real world for tidal energy, apart from very small or demonstration plants. While the future is certainly towards tidal streams/currents technologies rather than tidal range technologies, as tidal currents turbines may also be used for oceanic currents installations, these technologies are still in their infancy, as apart from their theoretical performance, every other aspect of a submerged power plant operation needs further developments.
Dynamic Nonlinear Analysis of an Irregular Office Building
Authors: Liu Haitao , Sun Shuchang , Xu Maoxing , Peng Yiliang
Published: June 2020

The common analysis methods of structural building include the response spectrum, static nonlinear analysis (pushover) and dynamic nonlinear analysis method. Meanwhile, for the analysis of irregular structures, dynamic nonlinear analysis method could accurately simulate the seismic response of structure under rare earthquake. In this paper, the dynamic nonlinear analysis was carried out to evaluate the seismic performance of an office building with irregular in plan and in elevation. The simulation results show that the maximum inter story-drift angle can satisfy the requirement in the nation code. Few shear walls exceeded the concrete yield compressive stress and most of the shear walls remained in the elastic stage. Most frame columns were within the component acceptance criterion of IO. By the above analysis results, it can be judged that the seismic capacity of the building structure can reach the seismic performance objectives in the code.
Phase transitions in a two-species model for cell segregation and logistic growth
Authors: Almeida Luis , Atsou Kevin , Marulli Marta , Peurichard Diane , Tesson Rémi
Published: June 2020

We study a model of cell segregation in a population composed of two cell types. Starting from a model initially proposed in [3], we aim to understand the impact of a cell division process on the system’s segregation abilities. The original model describes a population of spherical cells interacting with their close neighbors by means of a repulsion potential and which centers are subject to Brownian motion. Here, we add a stochastic birth-death process in the agent-based model, that approaches a logistic growth term in the continuum limit. We address the linear stability of the spatially homogeneous steady states of the macroscopic model and obtain a precise criterion for the phase transition, which links the system segregation ability to the model parameters. By comparing the criterion with the one obtained without logistic growth, we show that the system’s segregation ability is the result of a complex interplay between logistic growth, diﬀusion and mechanical repulsive interactions. Numerical simulations are presented to illustrate the results obtained at the microscopic scale.
Influence of the mode of reproduction on dispersal evolution during species invasion
Authors: Calvez Vincent , Crevat Joachim , Dekens Léonard , Fabrèges Benoit , Kuczma Frédéric , Lavigne Florian , Raoul Gaël
Published: June 2020

We consider a reaction-diffusion-reproduction equation, modeling a population which is spatially heterogeneous. The dispersion of each individuals is influenced by its phenotype. In the literature, the asymptotic propagation speed of an asexual population has already been rigorously determined. In this paper we focus on the difference between the asexual reproduction case, and the sexual reproduction case, involving a non-local term modeling the reproduction. This comparison leads to a different invasion speed according to the reproduction.

After a formal analysis of both cases, leading to a heuristic of the asymptotic behaviour of the invasion fronts, we give some numerical evidence that the acceleration rate of the spatial spreading of a sexual population is slower than the acceleration rate of an asexual one. The main difficulty to get sharper results on a transient comes from the non-local sexual reproduction term.
Curved interface reconstruction for 2D compressible multi-material flows
Authors: Chollet Igor , Lissoni Giulia , Corot Théo , Hoch Philippe , Leroy Thomas , Dumas Laurent
Published: June 2020

In this paper, we describe an interface reconstruction method in two dimension. This method is an extension of DPIR [1], which reconstructs continuous interfaces and preserves partial volumes using dynamic programming. First we extend the method to curved interfaces. Then, we present tools to improve its robustness in order to apply it to unstructured grid. Finally, we describe an extension to three materials.
Analysis of the modalities of return of populations to the contaminated territories following the accident at the Fukushima power plant
Authors: Croüail Pascal , Schneider Thierry , Gariel Jean-Christophe , Tsubokura Masaharu , Naito Wataru , Orita Makiko , Takamura Noboru
Published: June 2020

Based on gathered viewpoints from Japanese stakeholders who face the consequences of the Fukushima Daiichi nuclear disaster at the national and local levels, the modalities and conditions governing the decision of evacuees to return home after the lifting of evacuation orders, have been examined. This analysis revealed the complexity of the situation in a context of high uncertainty, and also emphasized the need for decision-makers and decision-helpers (e.g. radiological protection and medical experts) to take account and respect the different choices made or envisaged by the impacted communities for whom radiological issues are only one facet of the problem. The analysis firstly deals with the dynamics of the emergency evacuation which has strongly influenced the issue of managing the return of populations. Social and especially family dimensions are also emphasized, particularly related to the organization of temporary housing. Then, the organization and the evolution of the characterization and zoning of the affected areas are discussed as well as the radiological criteria that have been used and how they have been perceived by people. Notably, the effects on health and welfare are emphasized, by analysing in particular the temporal dynamics since the accident. The difficulties encountered by evacuees and returnees and the specific situations of the various communities are also highlighted. The question of the development of a radiological protection culture through self-monitoring and protective actions and its long-term role is also discussed. Another key element concerns the effects of the compensation system: without going into details on the mechanisms put in place, the social and ethical questions raised by this system are presented. Finally, the question of “the future of the affected territories” is evoked by stressing the concerns of several municipalities for restoring their attractiveness for possible newcomers.
Seasonal variations in indoor air quality parameters and occupants self-reported physical health within a warm humid climatic environment
Authors: Orola Bode Abiodun
Published: June 2020

This study examines seasonal variations in Indoor Air Quality in occupied spaces within student hostels of Obafemi Awolowo University, Nigeria, and the associated physical health effects reported by occupants. Indoor Air Quality data were obtained from 22 selected rooms, with at least two rooms selected from the nine different spatial design layouts identified in the hostel buildings. Indoor Air Quality parameters obtained were 15-minute interval data of relative humidity, as well as concentrations of carbon dioxide, total volatile organic compounds, and particulate matters. These were measured with data loggers placed at 1.0 m from the floor level in the centre of selected rooms. Measurements were taken in selected rooms through a period of four consecutive weeks each during the peaks of dry and wet seasons. A questionnaire, which was administered immediately at the end of the measurement period to 696 respondents, was used to capture the significant physical health symptoms as reported by the occupants, as well as information regarding their activities and use of the rooms. Significant health symptoms reported by occupants were the same across seasons. These were cold, fatigue, and headache. Indoor concentrations of carbon dioxide and particulate matters have most significant relationship with reported health symptoms.
Schlüsseltherapien für die obere Extremität
Authors: Mehrholz Jan , Thomas Simone , Elsner Bernhard
Published: June 2020

Zukünftig wird es bedeutsam sein, Patienten vorab in unterschiedliche Erholungskategorien einzuteilen und anschließend mit sehr spezifischen Behandlungen zu versorgen. Das ist die Idee der Schlüsseltherapien. Der Begriff ist allerdings nicht neu und bezieht sich darauf, dass wir bei bestimmten Problemstellungen (Schloss bzw. Schlüsselloch) ganz bestimmte Problemlösungen (Schlüssel) benötigen. Doch welche Therapieansätze könnten sich als Schlüsseltherapien erweisen?
B-Flow Sonography vs. Color Doppler Sonography for the Assessment of Vascularity in Pediatric Kidney Transplantation
Authors: Dammann Elena , Groth Michael , Schild Raphael-Sebastian , Lemke Anja , Oh Jun , Adam Gerhard , Herrmann Jochen
Published: June 2020

Objective To compare B-flow sonography (BFS) with color Doppler sonography (CDS) for imaging of kidney transplant vascularization in children.

Patients and Methods All children receiving a kidney transplantation who underwent a protocol-based ultrasound examination (Loqiq 9, GE Medical Systems, Milwaukee, WI, USA) using the BFS and CDS technique with equal settings and probe position between January 2013 and January 2016 were retrospectively assessed (n = 40). The obtained datasets were visually graded according to the following criteria: (I) delineation of the renal vascular tree (Grade 1 – clear demarcation of interlobar, together with arcuate and interlobular vessels; Grade 2 – clear demarcation of interlobar and cortical vessels, but no distinction of interlobular from arcuate vessels; Grade 3 – only clear demarcation of interlobar vessels, Grade 4 – insufficient demarcation) (II) delineation of cortical vessel density in ventral, lateral, and dorsal part of the transplant, (III) smallest vessel-capsule distance, and (IV) maximum cortical vessel count. Comparison between methods was performed using Fisher’s exact and paired sample t-tests.

Results Applying a curved transducer (C1–6), BFS showed superior delineation of the renal vascular tree (p < 0.001), a lower vessel-capsule distance (p < 0.001), a higher cortical vessel count (p < 0.001), and a higher cortical vessel density in the superficial cortex (p = 0.01) than CDS. In the dorsal and lateral aspects of the transplant, cortical vessel density was lower with BFS (both p < 0.001). Using a linear high-resolution transducer (ML 6–15), no significant differences between the methods were found.

Conclusion Improved imaging of kidney transplant vascularization can be achieved in children by adding BFS to a standard protocol. The BFS technique is especially beneficial for overall assessment of the renal vascular tree together with the extent of cortical vascularization on curved array images.

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Lower-Segment Transverse Cesarean Section
Authors: Hiramatsu Yuji
Published: June 2020

Cesarean section is the ultimate method of successful delivery of infants under various circumstances and is an indispensable operation in obstetrics. However, the degree of difficulty varies greatly depending on the gestational weeks, number of fetuses, number of previous cesarean sections, degree of placental adhesion, presence of uterine myomas, maternal obesity, and other factors. In addition, emergency cesarean section is a battle against time, and prompt surgery is required.

During training in cesarean section, surgeons must master the basic techniques in cases of term head presentation first. They must then master the techniques in cases involving complications such as malpresentation, preterm birth, placenta previa, abruptio placentae, uterine myomas, and other conditions.

Cesarean section itself is a simple operation. However, there are many difficult cases, and many complications such as placenta accreta and defects of the incision scar may occur after cesarean section.

The present report describes the basic procedures and cautionary points to perform the cesarean section without complications.
Evaluation of the Stability of the Subjects with Anterior Cruciate Injuries Reconstruction
Authors: Aghdam Hossein Akbari , Kavyani Mahsa , Bosak Maryam , Karimi Mohammad Taghi , Motififard Mehdi
Published: June 2020

Anterior cruciate ligament (ACL) is the most frequently injured ligament in the knee and is often injured during sport-related activities. ACL injuries influence the abilities of the subjects during standing and walking. Although early surgical intervention is preferred treatment for the majority of knee surgeons, the effect of this approach on postural stability of patients is not fully understood. Therefore, the aim of this study was to determine the difference between stability of ACL-reconstructed subjects before and after surgery. A group of 15 consecutive ACL injured patients participated in this study. Postural stability of the patients was evaluated 1 week before and 6 months after surgery (ACL reconstruction with hamstring autograft). A Kistler force plate was used to evaluate center of pressure (COP) sway during quiet standing. The mean values of the COP parameters were obtained in pre and postsurgery conditions. Paired sample t-test was used to evaluate the difference between the stability parameters of the two conditions. The significant point was set at 0.05. The mean value of path length of COP velocity in mediolateral (ML) direction was 1,485.57 ± 479.42 mm and 2,641.33 ± 996.26 mm before and after surgery, respectively (p-value = 0.01). Although the mean value of COP velocity in anteroposterior and ML directions increased after surgery, the difference was only significant for velocity in ML direction (p-value = 0.049). The results of this study showed that the standing stability of those with ACL reconstruction decreased significantly after ACL reconstruction, which may be due to the effects of the surgery on sensory mechanism of ACL and inability of patients to return to their previous deep sense perception and knee proprioception.