bluuebunny/crossref_metadata_2025 huggingface dataset:
Coded aperture snapshot spectral imaging fundus camera
Authors: Zhao Ruixuan , Yang Chengshuai , Smith R. Theodore , Gao Liang
Published: July 2023

Spectral imaging holds great promise for the non-invasive diagnosis of retinal diseases. However, to acquire a spectral datacube, conventional spectral cameras require extensive scanning, leading to a prolonged acquisition. Therefore, they are inapplicable to retinal imaging because of the rapid eye movement. To address this problem, we built a coded aperture snapshot spectral imaging fundus camera, which captures a large-sized spectral datacube in a single exposure. Moreover, to reconstruct a high-resolution image, we developed a robust deep unfolding algorithm using a state-of-the-art spectral transformer in the denoising network. We demonstrated the performance of the system through various experiments, including imaging standard targets, utilizing an eye phantom, and conducting in vivo imaging of the human retina.
Detection of Extended-spectrum β-lactamase-producing Escherichia coli isolates by isothermal amplification and association of their virulence genes and phylogroups with extraintestinal infection
Authors: Ullah Naeem , Assawakongkarat Thadchaporn , Akeda Yukihiro , Chaichanawongsaroj Nuntaree
Published: July 2023

Extraintestinal pathogenic Escherichia coli (ExPEC) producing extended-spectrum β-lactamases (ESBL) cause serious human infections due to their virulence and multidrug resistance (MDR) profiles. We characterized 144 ExPEC strains (collected from a tertiary cancer institute) in terms of antimicrobial susceptibility spectrum, ESBL variants, virulence factors (VF) patterns, and Clermont’s phylogroup classification. The developed multiplex recombinase polymerase amplification and thermophilic helicase-dependent amplification (tHDA) assays for blaCTX-M, blaOXA, blaSHV, and blaTEM detection, respectively, were validated using PCR-sequencing results. All ESBL-ExPEC isolates carried blaCTX-M genes with following prevalence frequency of variants: blaCTX-M-15 (50.5%) > blaCTX-M-55 (17.9%) > blaCTX-M-27 (16.8%) > blaCTX-M-14 (14.7%). The multiplex recombinase polymerase amplification assay had 100% sensitivity, and specificity for blaCTX-M, blaOXA, blaSHV, while tHDA had 86.89% sensitivity, and 100% specificity for blaTEM. The VF genes showed the following prevalence frequency: traT (67.4%) > ompT (52.6%) > iutA (50.5%) > fimH (47.4%) > iha (33.7%) > hlyA (26.3%) > papC (12.6%) > cvaC (3.2%), in ESBL-ExPEC isolates which belonged to phylogroups A (28.4%), B2 (28.4%), and F (22.1%). The distribution of traT, ompT, and hlyA and phylogroup B2 were significantly different (P < 0.05) between ESBL-ExPEC and non-ESBL-ExPEC isolates. Thus, these equipment-free isothermal resistance gene amplification assays contribute to effective treatment and control of virulent ExPEC, especially antimicrobial resistance strains.
Spatio-temporal velocity variations observed during the pre-eruptive episode of La Palma 2021 eruption inferred from ambient noise interferometry
Authors: Cabrera-Pérez Iván , D’Auria Luca , Soubestre Jean , Przeor Monika , Barrancos José , García-Hernández Rubén , Ibáñez Jesús M. , Koulakov Ivan , van Dorth David Martínez , Ortega Víctor , Padilla Germán D. , Sagiya Takeshi , Pérez Nemesio
Published: July 2023

On Sept. 19th, 2021, a volcanic eruption began on the island of La Palma (Canary Islands, Spain). The pre-eruptive episode was characterized by seismicity and ground deformation that started only 9.5 days before the eruption. In this study, we applied seismic interferometry to the data recorded by six broadband seismic stations, allowing us to estimate velocity variations during the weeks preceding the eruption. About 9.5 days before the eruption, we observed a reduction in the seismic velocities is registered next to the eruptive centers that opened later. Furthermore, this zone overlaps with the epicenters of a cluster of volcano-tectonic earthquakes located at shallow depth (< 4 km) and detached from the main cluster of deeper seismicity. We interpret the decrease in seismic velocities and the occurrence of such a shallow earthquake cluster as the effect of hydrothermal fluid released by the ascending magma batch and reaching the surface faster than the magma itself.
Pan-cancer structurome reveals overrepresentation of beta sandwiches and underrepresentation of alpha helical domains
Authors: Medvedev Kirill E. , Schaeffer R. Dustin , Chen Kenneth S. , Grishin Nick V.
Published: July 2023

The recent progress in the prediction of protein structures marked a historical milestone. AlphaFold predicted 200 million protein models with an accuracy comparable to experimental methods. Protein structures are widely used to understand evolution and to identify potential drug targets for the treatment of various diseases, including cancer. Thus, these recently predicted structures might convey previously unavailable information about cancer biology. Evolutionary classification of protein domains is challenging and different approaches exist. Recently our team presented a classification of domains from human protein models released by AlphaFold. Here we evaluated the pan-cancer structurome, domains from over and under expressed proteins in 21 cancer types, using the broadest levels of the ECOD classification: the architecture (A-groups) and possible homology (X-groups) levels. Our analysis reveals that AlphaFold has greatly increased the three-dimensional structural landscape for proteins that are differentially expressed in these 21 cancer types. We show that beta sandwich domains are significantly overrepresented and alpha helical domains are significantly underrepresented in the majority of cancer types. Our data suggest that the prevalence of the beta sandwiches is due to the high levels of immunoglobulins and immunoglobulin-like domains that arise during tumor development-related inflammation. On the other hand, proteins with exclusively alpha domains are important elements of homeostasis, apoptosis and transmembrane transport. Therefore cancer cells tend to reduce representation of these proteins to promote successful oncogeneses.
Air quality—climate forcing double whammy from domestic firelighters
Authors: Lin Chunshui , Ceburnis Darius , Vaishya Aditya , Trubetskaya Anna , Tan Yue , Wang Tao , Smith William , Johnson Robert , Xu Wei , Monaghan Rory F. D. , O’Dowd Colin , Ovadnevaite Jurgita
Published: July 2023

Renewable biomass plays a crucial role in transitioning toward climate-friendly heating sources; however, not without its collateral damage in terms of the disproportionately high effects on local air quality. The associated proliferation of residential heating appliances around the world, including developed regions like Europe, where an estimated 70 million are housed, does not appear to be abating. Here, we identify super self-concentrating ambient pollution events whereby solid-fuel residential heating haze is infused with a hitherto unaccounted for firelighter smoke that contributes additional adsorbing black carbon. This black carbon-organic aerosol combination results in a strong positive radiative forcing (up to 149 W m−2) and alters the boundary layer thermodynamics sufficiently so as to further suppress pollutant dilution and dispersion leading to extraordinary high submicron particulate matter (PM1: 166 µg m−3). Unfortunately, there is no silver lining in this cloud until the promotion of solid biomass fires with firelighters for ignition is replaced by a co-benefit policy.
Mapping disease regulatory circuits at cell-type resolution from single-cell multiomics data
Authors: Chen Xi , Wang Yuan , Cappuccio Antonio , Cheng Wan-Sze , Zamojski Frederique Ruf , Nair Venugopalan D. , Miller Clare M. , Rubenstein Aliza B. , Nudelman German , Tadych Alicja , Theesfeld Chandra L. , Vornholt Alexandria , George Mary-Catherine , Ruffin Felicia , Dagher Michael , Chawla Daniel G. , Soares-Schanoski Alessandra , Spurbeck Rachel R. , Ndhlovu Lishomwa C. , Sebra Robert , Kleinstein Steven H. , Letizia Andrew G. , Ramos Irene , Fowler Vance G. , Woods Christopher W. , Zaslavsky Elena , Troyanskaya Olga G. , Sealfon Stuart C.
Published: July 2023

Resolving chromatin-remodeling-linked gene expression changes at cell-type resolution is important for understanding disease states. Here we describe MAGICAL (Multiome Accessibility Gene Integration Calling and Looping), a hierarchical Bayesian approach that leverages paired single-cell RNA sequencing and single-cell transposase-accessible chromatin sequencing from different conditions to map disease-associated transcription factors, chromatin sites, and genes as regulatory circuits. By simultaneously modeling signal variation across cells and conditions in both omics data types, MAGICAL achieved high accuracy on circuit inference. We applied MAGICAL to study Staphylococcus aureus sepsis from peripheral blood mononuclear single-cell data that we generated from subjects with bloodstream infection and uninfected controls. MAGICAL identified sepsis-associated regulatory circuits predominantly in CD14 monocytes, known to be activated by bacterial sepsis. We addressed the challenging problem of distinguishing host regulatory circuit responses to methicillin-resistant and methicillin-susceptible S. aureus infections. Although differential expression analysis failed to show predictive value, MAGICAL identified epigenetic circuit biomarkers that distinguished methicillin-resistant from methicillin-susceptible S. aureus infections.
An outlier detection algorithm based on segmentation and pruning of competitive network for glioma identification using Raman spectroscopy
Authors: Zhang Zhixiang , Zhou Yan , Li Qingbo
Published: July 2023

A label-free SPCN algorithm detects glioma using Raman spectroscopy. It segments and prunes competitive networks, eliminating the need for outlier threshold estimation or data distribution density. Effective for non-compact manifold data sets.
Biosynthetic incorporation of fluorinated amino acids into the nonribosomal peptide gramicidin S
Authors: Müll Maximilian , Pourmasoumi Farzaneh , Wehrhan Leon , Nosovska Olena , Stephan Philipp , Zeihe Hannah , Vilotijevic Ivan , Keller Bettina G. , Kries Hajo
Published: July 2023

Since fluorinated compounds are vital in medicinal chemistry, incorporating fluorine into natural products is attracting interest. We enable incorporation of 4-fluoro-Phe into the nonribosomal peptide gramicidin S with a surgical mutation.
Effect of accumulated strain on fat bloom in CBS-based compound chocolates
Authors: Koizumi Haruhiko , Kimura Kazuki , Takagi Mayuko , Michikawa Soichi , Hirai Yuta , Sato Kiyotaka , Ueno Satoru
Published: July 2023

The strain accumulated in the β′ form of CBS has a significant effect on the rate of the phase transformation.
Regioisomeric N–C functionalization of an asymmetric N-rich framework: a promising pathway to heat-resistant energetic materials
Authors: Su Dongshuai , Cai Jinxiong , Yin Ping , Pang Siping
Published: July 2023

Energetic materials with high decomposition temperatures have wide applications in extreme environments such as spacecraft separation systems and drilling engineering.
A bistable cholesteric liquid crystal film stabilized by a liquid-crystalline epoxy/thiol compound-based polymer
Authors: Zhang Huimin , Li Fei , Li Junqin , He Zemin , Gao Jianjing , Wen Lifen , Zhao Yuzhen , Miao Zongcheng
Published: July 2023

A bistable film was prepared by constructing a microsphere-type polymer with a liquid-crystalline epoxy/thiol monomer in negative dielectric anisotropic cholesteric liquid crystals.
In-depth study of binary ethanol–triacetin mixtures in relation to their excellent solubilization power
Authors: Hofmann Evamaria , Saridis Anna , Touraud Didier , Buchner Richard , Kunz Werner
Published: July 2023

Binary mixtures of ethanol and triacetin are studied by means of COSMO-RS-based calculations, DLS, SWAXS, and DRS. The findings are related to the significant solubility of (tetrahydro)curcumin in these mixtures.
Fermi level shifts of gold nanospheres on ZnO film upon UV irradiation
Authors: Barbillon Grégory
Published: July 2023

Demonstration, by extinction spectroscopy, of the Fermi level shift of Au nanospheres towards the conduction band of ZnO upon UV irradiation.
Bismuth phosphate nanoparticle catalyst for direct oxidation of methane into formaldehyde
Authors: Matsuda Aoi , Obara Kazuhiko , Ishikawa Atsushi , Tsai Meng-Hsuan , Wang Chia-Hsin , Lin Yu-Chuan , Hara Michikazu , Kamata Keigo
Published: July 2023

Monoclinic BiPO4 nanoparticles selectively gave HCHO for the direct oxidation of CH4 thorough the possible involvement of surface active oxygen species on BiPO4 in the activation of CH4.
Assessment of aldehyde contributions to PTR-MS m/z 69.07 in indoor air measurements
Authors: Ernle Lisa , Wang Nijing , Bekö Gabriel , Morrison Glenn , Wargocki Pawel , Weschler Charles J. , Williams Jonathan
Published: July 2023

PTR m/z 69.07 commonly attributed to isoprene suffers interference from C5–C10 aldehydes indoors, especially when ozone is present. The contribution of nonanal could be quantified by using the protonated molecular ion, unlike the other aldehydes.
How do water-mediated interactions and osmotic second virial coefficients vary with particle size?
Authors: Naito Hidefumi , Sumi Tomonari , Koga Kenichiro
Published: July 2023

The solute-size dependence of the osmotic second virial coefficient is calculated and the effect of the strength of solute–solvent attraction on the effective pair potential between solutes of varying size is examined.
The effect of the TiO2 interface layer on the electrochromic properties of WO3-based devices
Authors: Gui Panshu , Jin Ziyi , Bai Yufeng , Lv Zhengqiao , Mo Jianwei , Chang Shuai , Yang Di
Published: July 2023

The origin that the performance of electrochromic WO3 is improved by TiO2 was investigated. Based on this, the optimized devices exhibited excellent stability and high transmission modulation under a low self-driving energy.
Enhancing allosteric inhibition of dihydrodipicolinate synthase through the design and synthesis of novel dimeric compounds
Authors: Christoff Rebecca M. , Al Bayer Mohammad , Soares da Costa Tatiana P. , Perugini Matthew A. , Abbott Belinda M.
Published: July 2023

The synthesis of the first low micromolar dimeric inhibitor of E. coli DHDPS is reported.
Facile synthesis of cross-linked Ag–CdS nanoshell morphology for highly efficient photocatalytic activity
Authors: Bhandari Shubhranshu , Ali Mir Sahidul , Roy Debayan , Saini Suresh , Ali Mir Intaj , Ali Mir Sahanur
Published: July 2023

The designing of nanostructured materials for photocatalytic activity can reduce water pollution significantly from toxic dyes, which is a matter of concern from an environmental perspective due to its long-term impact on animal and plant life.
Visible-light-catalyzed synthesis of 1,3-benzoxazines via formal [4 + 2] cycloaddition of oximes with o-hydroxybenzyl alcohols
Authors: Qi Zhenjie , An Zhenyu , Huang Bingbing , Wu Mingzhong , Wu Quansen , Jiang Dongfang
Published: July 2023

A new [4 + 2] cycloaddition strategy involving oximes with o-hydroxybenzyl alcohols for the synthesis 1,3-benzoxazine derivatives under visible light-based organocatalytic and TsOH conditions.
Effects of chirality and side chain length in Cα,α-dialkylated residues on β-hairpin peptide folded structure and stability
Authors: Heath Shelby L. , Horne W. Seth , Lengyel George A.
Published: July 2023

A Cα,α-dialkylated residue with appropriate stereochemical configuration can associate with the hydrophobic core of a β-hairpin peptide, providing additional stability.
Synthesis of redox-responsive core–shell nanoparticles: insights into core-crosslinking efficiency
Authors: Olszowy Yannik , Wesselmann Janick , Over Shenja Fabienne , Pätzold Florian , Weberskirch Ralf
Published: July 2023

Size exclusion chromatography was used to quantitatively analyze the core crosslinking efficiency of poly(2-ethyl-2-oxazoline)-block-poly(n-butyl acrylate-co-d,l-homocysteine thiolactone acrylamide)s with various di- and triamines.
Enhanced near-room temperature thermoelectric performance and mechanical strength of n-type BiTeSe materials incorporated with Ag2Se inclusions
Authors: Chen K. , Chen T. , Ai L. , Ming H. W. , Li S. J. , Zhang J. , Qin X. Y. , Xin H. X. , Song C. J. , Li D.
Published: July 2023

Bi2Te3-based alloys are the best thermoelectric materials near room temperature.
Fabrication strategies for high quality halide perovskite films in solar cells
Authors: Xie Xiangfan , Zeng Shengqiao , Zhou Cangtao , Xiao Shuang
Published: July 2023

Fabrication strategies for high quality halide perovskite films in solar cells are reviewed from the aspects of intermediate engineering, reaction-controlled, additive-controlled, and mass-controlled crystal growth.
The “cobra effect” in the imidazolinone series: how a donor can disable the nucleophilicity
Authors: Gazizov A. S. , Kuznetsova E. A. , Kamaletdinov A. Z. , Smolobochkin A. V. , Lodochnikova O. A. , Gerasimova D. P. , Burilov A. R. , Pudovik M. A.
Published: July 2023

Contrary to chemical intuition, electron-donating groups decrease the nucleophilicity of the double bond in imidazolin-2-ones, switching their reactivity from “enamide” to “base”. Enamide reactivity can be recovered by a careful choice of the catalyst and solvent.
Fluorinated hydrogel nanoparticles with regulable fluorine contents andT2relaxation times as19F MRI contrast agents
Authors: Duan Ziwei , Liu Changjiang , Tang Junjie , Zhang Ruling , Peng Danfeng , Lu Ruitao , Cao Zong , Wu Dalin
Published: July 2023

Medical imaging contrast agents that are able to provide detailed biological information have attracted increasing attention.
Impact of surface cooling on the water harvesting efficiency of nanostructured window glass
Authors: Do Yoonseo , Ko Minji , Lee Young Kwang
Published: July 2023

This study proposes a simple and eco-friendly approach to atmospheric water harvesting from cooled optimal surface structures for window glass.
A dinuclear Rh(−i)/Rh(i) complex bridged by biphilic phosphinine ligands
Authors: Masada Koichiro , Okabe Kiyosumi , Kusumoto Shuhei , Nozaki Kyoko
Published: July 2023

A dinuclear Rh(−i)/Rh(i) complex bridged by tridentate phosphinine ligands was prepared by reduction of the corresponding Rh(i) complex. An unsymmetric bridging mode of the phosphinine differentiated the electronic environments of the Rh centres.
Interfacing NiV layered double hydroxide with sulphur-doped g-C3N4 as a novel electrocatalyst for enhanced hydrogen evolution reaction through Volmer–Heyrovský mechanism
Authors: Srividhya G. , Viswanathan C. , Ponpandian N.
Published: July 2023

The poor intrinsic catalytic activity of g-C3N4 towards electrochemical hydrogen evolution reaction (HER) was overcome by sulphur doping and NiV LDH compositing. A comprehensive account of enhanced HER through the Volmer–Heyrovský mechanism is provided.
Longitudinal Examination of Morphosyntactic Skills in Bilingual Children: Spanish and English Standardized Scores
Authors: Castilla-Earls Anny , Ronderos Juliana , Francis David J.
Published: July 2023

Purpose:

This study aimed to examine changes in English and Spanish morphosyntactic standardized scores over time in bilingual children.

Method:

One hundred bilingual children participated in this longitudinal study. The average age of the children at the beginning of the study was 5;11 (years;months). A subset of the participants was identified as children with developmental language disorder (DLD,
n
= 43). Children completed behavioral testing in Spanish and English at three time points over a period of 2 years. Growth curve modeling was employed to analyze longitudinal data.

Results:

Distinct patterns of Spanish and English language growth were observed. While the average standard score in English increased, the average score in Spanish decreased over time for both groups. Children with DLD showed persistent language difficulties in both Spanish and English over time in comparison to their peers.

Conclusions:

The results of this study provide evidence of a shift in language proficiency from Spanish to English for bilingual children with and without language disorders. This study also shows that bilingual children with DLD show a protracted but parallel growth in morphosyntactic skills in comparison to children without DLD.

Supplemental Material:

https://doi.org/10.23641/asha.23671464
Identifying Implementation Strategies to Increase Augmentative and Alternative Communication Adoption in Early Childhood Classrooms: A Qualitative Study
Authors: Quinn Emily D. , Kurin Kim , Atkins Kristi L. , Cook Alexandria
Published: July 2023

Purpose:

The goal of this study was to identify promising implementation strategies that may increase teachers' and speech-language pathologists' (SLPs) adoption of augmentative and alternative communication (AAC) during routine classroom activities.

Method:

A grounded theory approach was used to collect and code online, semistructured interviews with six special education teachers and 14 SLPs who taught children aged 3–8 years who used AAC in inclusive and self-contained special education classrooms. Interviews were transcribed and coded verbatim using the constant comparative method. During a member checking process, six participants (
n
= 30%) confirmed their transcripts and commented on emerging themes.

Results:

Participants shared a range of implementation strategies to increase AAC use during typical classroom activities, which were organized into seven themes: distribute modern AAC equipment, provide foundational training, share video examples, develop a systematic plan for adoption, deliver practice-based coaching, alter personnel obligations to provide protected time, and connect with professionals. A preliminary thematic map was created to link implementation barriers, strategies, and potential outcomes.

Conclusions:

AAC interventions effective in clinical research can be difficult to translate into routine practice unless investigators directly explore the needs of and demands on educational professionals. Future research should define implementation strategies clearly, solicit feedback from school-personnel, and match implementation strategies to the needs of local schools to support the uptake of AAC interventions in routine classroom settings.

Supplemental Material:

https://doi.org/10.23641/asha.23699757
High expression of centromere protein A and its molecular mechanism and clinical significance in prostate cancer: A study based on data mining and immunohistochemistry
Authors: Jiang Fang‐Cheng , Zhai Gao‐Qiang , Liu Jia‐Lin , Wang Rui‐Gong , Yang Yuan‐Ping , Murugesan Harivignesh , Yu Xiao‐Xiang , Du Xiu‐Fang , He Juan , Feng Zhen‐Bo , Pan Shang Ling , Chen Gang , Li Sheng‐Hua , Huang Zhi‐Guang
Published: July 2023

The progression of prostate cancer (PCa) leads to poor prognosis. However, the molecular mechanism of PCa is still not completely clear. This study aimed to elucidate the important role of centromere protein A (CENPA) in PCa. Large numbers of bulk RNA sequencing (RNA‐seq) data and in‐house immunohistochemistry data were used in analysing the expression level of CENPA in PCa and metastatic PCa (MPCa). Single‐cell RNA‐seq data was used to explore the expression status of CENPA in different prostate subpopulations. Enrichment analysis was employed to detect the function of CENPA in PCa. Clinicopathological parameters analysis was utilised in analysing the clinical value of CENPA. The results showed that CENPA was upregulated in PCa (standardised mean difference [SMD] = 0.83, p = 0.001) and MPCa (SMD = 0.61, p = 0.029). CENPA was overexpressed in prostate cancer stem cells (CSCs) with androgen receptor (AR) negative compared to epithelial cells with AR positive. CENPA may influence the development of PCa through affecting cell cycle. Patients with nodal metastasis had higher expression level of CENPA. And patients with high CENPA expression had poor disease‐free survival. Taken together, Overexpression of CENPA may influence the development of PCa by regulating cell cycle and promoting metastasis.
Energetic particle dynamics in a simplified model of a solar wind magnetic switchback
Authors: Malara F. , Perri S. , Giacalone J. , Zimbardo G.
Published: July 2023

Context.Recent spacecraft observations in the inner heliosphere have revealed the presence of local Alfvénic reversals of the magnetic field, while the field magnitude remains almost constant. These are called magnetic switchbacks (SBs) and are very common in the plasma environment close to the Sun explored by the Parker Solar Probe satellite.

Aims.A simple numerical model of a magnetic field reversal with constant magnitude is used in order to explore the influence of SBs on the propagation of energetic particles within a range of energy typical of solar energetic particles.

Methods.We model the reversal as a region of space of adjustable size bounded by two rotational discontinuities. By means of test particle simulations, beams of mono-energetic particles can be injected upstream of the SB with various initial pitch- and gyro-phase angles. In each simulation, the particle energy may also be changed.

Results.Particle dynamics is highly affected by the ratio between the particle gyroradius and the size of the SB, with multiple pitch-angle scatterings occurring when the particle gyroradius is of the order of the SB size. Further, particle motion is extremely sensitive to the initial conditions, implying a transition to chaos; for some parameters of the system, a large share of particles is reflected backwards upstream as they interact with the SB. These results could have a profound impact on our understanding of solar energetic particle transport in the inner heliosphere, and therefore possible comparisons with in situ spacecraft data are discussed.
Brown dwarf companions in binaries detected in the 2021 season high-cadence microlensing surveys
Authors: Han Cheongho , Jung Youn Kil , Bond Ian A. , Chung Sun-Ju , Albrow Michael D. , Gould Andrew , Hwang Kyu-Ha , Lee Chung-Uk , Ryu Yoon-Hyun , Shin In-Gu , Shvartzvald Yossi , Yang Hongjing , Yee Jennifer C. , Zang Weicheng , Cha Sang-Mok , Kim Doeon , Kim Dong-Jin , Kim Seung-Lee , Lee Dong-Joo , Lee Yongseok , Park Byeong-Gon , Pogge Richard W. , Abe Fumio , Barry Richard , Bennett David P. , Bhattacharya Aparna , Fujii Hirosame , Fukui Akihiko , Hamada Ryusei , Hirao Yuki , Ishitani Silva Stela , Itow Yoshitaka , Kirikawa Rintaro , Koshimoto Naoki , Matsubara Yutaka , Miyazaki Shota , Muraki Yasushi , Olmschenk Greg , Ranc Clément , Rattenbury Nicholas J. , Satoh Yuki , Sumi Takahiro , Suzuki Daisuke , Tomoyoshi Mio , Tristram Paul J. , Vandorou Aikaterini , Yama Hibiki , Yamashita Kansuke
Published: July 2023

Aims. As a part of the project aiming to build a homogeneous sample of binary-lens (2L1S) events containing brown dwarf (BD) companions, we investigate the 2021 season microlensing data collected by the Korea Microlensing Telescope Network (KMTNet) survey.

Methods. For this purpose, we first identified 2L1S events by conducting systematic analyses of anomalous lensing events. We then selected candidate BD companion events by applying the criterion that the mass ratio of the lens components is lower than qth ∼ 0.1.

Results. From this procedure, we find four events including KMT-2021-BLG-0588, KMT-2021-BLG-1110, KMT-2021-BLG-1643, and KMT-2021-BLG-1770, for which the estimated mass ratios are q ∼ 0.10, 0.07, 0.08, and 0.15, respectively. Event KMT-2021-BLG-1770 was selected as a candidate even though the mass ratio is slightly greater than qth because the lens mass expected from the measured short timescale of the event, tE ∼ 7.6 days, is low. From the Bayesian analyses, we estimate that the primary and companion masses are (M1/M⊙,M2/M⊙) = (0.54−0.24+0.31, 0.053−0.023+0.031) for KMT-2021-BLG-0588L, (0.74−0.35+0.27, 0.055−0.026+0.020) for KMT-2021-BLG-1110L, (0.73−0.17+0.24,0.061−0.014+0.020) for KMT-2021-BLG-1643L, and (0.13−0.07+0.18, 0.020−0.011+0.028) for KMT-2021-BLG-1770L. It is estimated that the probabilities that the lens companions are in the BD mass range are 82%, 85%, 91%, and 59% for the individual events. To confirm the BD nature of the lens companions found in this and previous works by directly imaging the lenses from future high-resolution adaptive-optics (AO) followup observations, we provide the lens-source separations expected in 2030, which is the approximate year of the first AO light on 30 m class telescopes.
Conceptual modeling of the paradigm of the land market sustainable and harmonious development
Authors: Stiazhkova Natalia Mikhailovna , Smirnova Iuliia Olegovna , Lukinov Vitalii Aleksandrovich
Published: July 2023

In this article we explore the problems of scientific and practical modeling of the paradigm of the land market sustainable and harmonious functioning and development. The article proposes a conceptual modeling of the land market as a specialized commodity market for sustainable development based on the application to it of advanced requirements for environmentally friendly, green, energy-efficient solutions. The purpose of this research is to develop a set of theorises, concepts, principles, organizational and economic mechanisms, paradigms and new empirical knowledge on modeling a sustainable harmonic land market that will be capable to generate advanced requirements for the sustainability of territories in investment projects and programs based on the mandatory cost management of environmentally-oriented life cycles capital construction objects at the stage of land development. The object of this study is the sustainable and harmonious development of the land market. The subject of the research is the processes and mechanisms of modeling sustainable and harmonious development of the land market, including the principles of ensuring the synchronous development of the land market relative to the sustainable development of territories, along with ensuring the requirements of sustainable development of both development territories and land plots on the basis of the principle of harmony.
Digital tools for providing eco-friendly and safe educational environment
Authors: Zvonov Ilya
Published: July 2023

The study is devoted to establishing a reasonable relationship between the parameters of the material and spatial environment that forms a balanced eco-friendly space and educational environment, formed by the implemented educational process. The objects of the study are the buildings of educational institutions. The subject of the study is the conditions affecting the operating parameters of the main buildings. The aim of the study is to form a new type of complex conditions affecting the operational parameters of the buildings. The applied methodical approach is based on the establishment of relationships and conditions of influence between the parameters of the educational process, educational technologies used in the institution, the conditions of the internal environment of the premises, the parameters of the material and spatial environment of buildings and the educational infrastructure involved. The novelty of the study lies in the justification of the proposal to introduce a new integrated system of engineering parameters – educational and technical conditions. The study uses an adapted mathematical apparatus which allows evaluating the effectiveness of implementation of educational and technical conditions. The approach used in the study involves understanding the environmental friendliness and safety factors of the educational environment as one of the resulting conditions for the implementation of the educational process.
Evolution of scientific approaches to the multifunctional public complexes’ development
Authors: Strashnova Yulia
Published: July 2023

This research aims to analyze the socio-economic conditions and urban planning features influence on scientific approach and multifunctional complexes hypotheses throughout history. A retrospective analysis of scientific theory, socio-economic and political conditions, and territorial planning city trends helped to identify the specifics of the cultural and social service sector and multifunctional complexes, as the most effective form of public construction development. The idea of multifunctionality as a scientific hypothesis evolved from the objective tasks to revive national economy in the early twenty century and was initially implemented by residential complexes with a developed system of public functions to balance work, leisure, and rest for workers. The planning aspect is revealed through the linear city concepts and new system of resettlement. Later, the function diversity principle was implemented within the development of the citywide center system. The efficacy of multifunctional public construction has been proven over the years; however, modern social, economic, and ecological conditions require different scientific approaches to consider the multifunctional public buildings as an urban planning subsystem requiring interrelated development within the model of territorial spatial environments. The novelty of the research lies in defining modern scientific approaches to the urban planning subsystem of the multifunctional public complexes.
Carbon footprint: IPCC targets vs. building and social standards
Authors: Semenov Andrey , Oganesyan Ekaterina
Published: July 2023

Residential buildings in Russia consume electricity, natural gas, thermal energy for home and water heating, as well as other resources from external suppliers. Such resource consumption results in direct and indirect carbon dioxide emissions that affect the environment. Sustainable development requires the humanity to fit the environmental carrying capacity, and measures against climate change require carbon emissions to reduce. This paper compares carbon footprint reduction target declared by UNCC Conference 2015 and the Paris Agreement, as well as targets offered by other environmental institutions, to carbon emissions arising from existing Russian building standards and social norms application, and actual data. Building standards set the amount of heat per square meter to be delivered to apartment buildings depending on its geographic location, while social norms set a minimal premises area per resident. Also social standards for electricity and natural gas consumption per person exist. Russian Government decrees regulate utility services parameters for apartment and residential buildings, setting hot water temperature and consumption standards per resident and for common household needs. These norms and standards permit the minimal carbon dioxide emissions per year per resident to assess and compare to the carbon footprint reduction target. This paper demonstrates that existing Russian building standards and norms result in carbon emissions per capita significantly exceeding the targets, and recommends standards and norms update to reduce carbon footprint, admitting at the same time that such update is only a step towards the Paris Agreement targets.
Trends in the application of “green” standards on the life cycle of capital housing construction objects
Authors: Vladimirova Irina , Dmitriev Aleksander , Kallaur Galina , Oleynikova Nina , Tsygankova Anna
Published: July 2023

The study aims to identify the problems of “green” housing in the concept of sustainable-ESG development of the life cycle of a capital facility. It was revealed that the priority area of sustainable management of the capital object life cycle is a responsible attitude towards the environment, and the main factor is energy efficiency. In this aspect, the analysis of actual data from the Unified Housing Information System was carried out using statistical methods, mathematical and graphic modeling. Trends in the distribution of houses by energy efficiency groups were identified, an economic assessment of the increase in the cost of “green” residential buildings was made, the impact on the marginality of developers, which reduces when using “green” technologies, was shown. The role of the banking sector in maintaining “green” projects is shown: their share in the portfolios of financial institutions has been assessed, leaders in the top 5 banks have been identified. The conclusions are formulated in the form of points of growth of “green” housing construction in the field of standardization of requirements and approaches to the assessment of “green” projects, the development of mechanisms for their regulation based on the balance of administrative and economic instruments, as well as the activation of banking structures for the introduction of preferential investment.
Improving performance of Geographic Information Systems (GIS): A case study on Nghe An (Vietnam) province planning
Authors: Phuong Le Thi Minh , Phong Bui Hai , Anh Trinh Tien
Published: July 2023

The planning database is a big data system, especially the provincial planning data. The planning information also needs to be disclosed to people in smart cities. Putting planning data on the web is necessary, but the speed of information extraction is still limited. The paper presents the improvements in the performance of GIS using PostgreSQL and WebGIS. The planning database of Nghe An province (Vietnam) which is a large province of Vietnam is collected and evaluated. Compared to traditional Arcgis, the proposed system allows improving the execution by two times. Moreover, WebGIS supports users to explore the system faster and more easily.
Influence of complex additives based on sulfoaluminate cement on the properties of composite binder
Authors: Samchenko Svetlana Vasilievna , Nguyen Doan Tung Lam , Shvetsova Victoria Andreevna , Kim Dien Vu
Published: July 2023

One urgent issue today is reducing CO2 emissions worldwide. In particular, the study of using sulfoaluminate cement to create less CO2 is a suitable solution. The paper presents compound additives' influence on the composite binder's standard consistency. Binders such as sulfoaluminate cement, natural gypsum, and tripoli are used as additives. The resulting binder's standard consistency was determined per GOST 310.3-76. Box-Wilson central composite design method was used to simulate the test results. The results obtained are presented as the surface of the second-level regression equation, which describes the dependence of the mixed binder's standard consistency on the additives' content. Research results have been obtained from compositions of composite binders with maximum and minimum standard consistency. Based on the analysis of experimental data, conclusions were drawn about the possible mechanism of the effect of the introduced additives on the consistency of the cement paste.
Analysis of Factors Affecting E-logistics Services on Urban Management at Hochiminh City, Vietnam
Authors: Hai Dinh Tuan , Quyet Nguyen Xuan
Published: July 2023

Vietnam’s logistics industry with an estimated total value of US$ 50-60 billion is currently growing rapidly (20 - 25% per year) and is expected to maintain double-digit growth for at least 5 to 10 next year, due to the breakthrough of the retail industry with high internet penetration and online shopping trends. According to the Vietnam E-Commerce White Paper 2018, the scale of the B2C e-commerce market was US$ 6.2 billion in 2017. Vietnam is one of the fastest growing e-commerce markets in Southeast Asia. With this boom, the demand for logistics in e-commerce ecosystem is huge. Analyzing the factors affecting electronic logistics to propose a strategic solution for the development of e-logistics services in HoChiMinh City is urgent under the Logistics Development Plan of Ho Chi Minh City until 2025, with a vision to 2030.
Pneumatic transportation of municipal waste – a means of improving the ecology of the city
Authors: Dotsenko Anatolij Ivanovich , Babaev Timur Kazbekovich
Published: July 2023

The article considers the issues of the impact on the environment of the city of pneumatic transportation for the removal of municipal solid waste (MSW). The disadvantages of conventional collection and transportation of MSW (container-garbage truck) are indicated, the main of which is the release of greenhouse gases into the atmosphere of the city (methane, ammonia, sulfur compounds, etc.). These problems can be eliminated by pneumatic transportation, which collects and moves waste using an air flow in an underground pipeline. As the conducted research has shown, one of the promising directions for the development of urban waste disposal is the use of a combined pneumatic intake-injection system, for the development of a schematic diagram of which the patent of the Russian Federation for invention No. 2787693 was obtained. One of the most important technological operations in the pneumatic transportation removal of MSW is the purification of the air emitted into the atmosphere from dust and harmful gaseous impurities. For this purpose, multi-stage air filters are provided in the developed pneumatic transportation system. The conducted studies have established that in order to improve the purification of the air removed from the pipeline, it is advisable to use photocatalytic purification as a filter of the last stage.
Water collector location for the rang dong textile industrial park
Authors: Van Duong Pham , Hue Trinh Thi , Huong Tran Thi Thu
Published: July 2023

For coastal region, the saline intrusion is one of the major issues to be concerned because it has a direct and long-term impact on the socio-economic growth. Rang Dong Textile Industrial Park is specifically designed for the large-scale textile project, located in Rang Dong Town, Nghia Hung District, Nam Dinh Province, with a daily water demand of 170,000m3 per day. The Industrial Park (IP) is located close to the sea, surrounded by 2 big rivers, Day River and Ninh Co River with ambulant water sources. However, the surface water in this region is suffered from the saline intrusion issue. Therefore, in order to supply sufficient water amount for the industrial park, it is important to determine and select the water collector location for the clean water treatment plant in the industrial park. In the present study, the calculation of saline intrusion in the downstream of Day River is simulated with MIKE11 model, which is built based on the salinity data of water in Nhu Tan, Ba Lat, Phu Le & Dong Quy stations. The simulation results show that at the selected location of the water collector, 25km from the sea gate, the salinity maintaining time of water 4‰ per month is almost unaffected; the salinity maintaining time of water 1‰ per month only accounts for 1%-4% days in the month, meeting the water supply demand of the industrial park.
Urban environment as a factor in the formation of the area microclimate
Authors: Giyasov Botir Iminzhonovich , Gurovich Boris Markovich , Giyasov Ruslan Batyrovich
Published: July 2023

The growth of the leading countries’economies leads to the rapid development of megacities and changes in urban areas. Currently, more and more modern high-rise civil buildings are being built, resulting in an increasing density of urban areas and the activity of transport infrastructure. This causes major changes in the structure of urban development, which leads to a change in aeration and microclimatic conditions in urban areas. Solar radiation plays an active role in shaping the microclimate of the urban space, which aggravates the heat and wind regime of the urban environment. This is especially acute in the southern cities with hot climatic conditions. The article analyzes modern urban areas and factors affecting their microclimate. The role of temperature inversions in the formation of microclimatic conditions is indicated. Using the example of the yard space in Dushanbe, measurements and field studies were carried out; graphs of the climatic indicators of the urban area were plotted. The role of solar radiation in the formation of convective flows and microclimatic conditions of urban space is discussed.
The impact of building-renovation program on the city’s environment
Authors: Lunyakov Mikhail Alexandrovich , Kirpichenkov Andrey Andreevich
Published: July 2023

Implementation of the residential renovation program, which is currently underway in the city of Moscow, as well as in other cities of the Russian Federation, helps to create comfortable and safe living conditions for citizens. In addition, one of the most important tasks of this program is the integrated development of urban areas: development of public spaces, landscaping of districts, organization of parks and recreation areas. These aspects help to create more favorable living conditions and also have a positive impact on the environmental component of the area. As renovation of residential buildings is a combination of renovation or modernization of existing buildings, more attention is being paid to the energy efficiency of buildings, as well as their impact on the environment. For example, modernizing the engineering systems, improving the thermal conductivity of the building envelope and other aspects can reduce greenhouse gas emissions; reduce energy consumption and so on. Thus, the implementation of the housing renovation program, due to its massive scale, has a favorable impact on the environmental condition of the city and its districts.
Inter-municipal interaction as a factor in the development of the territorial and spatial environment
Authors: Balashov Evgeni , Kirillova Ariadna
Published: July 2023

The processes of urbanization in the development of cities and settlements increase the importance of the factors of the existing public infrastructure and lead to an intensification of the search for more effective mechanisms for the ecological renewal of the territorial and spatial environment of municipalities through the development and modernization of public infrastructure facilities aimed at improving the quality of communal services. The article considers the features of public infrastructure facilities operation related to a deterioration of their technical and functional characteristics over time, aging and disposal of existing facilities, premature growth of physical and moral deterioration of public infrastructure facilities during their life cycle. The specifics of elaborating mechanisms enabling mutual coordination and cooperation of municipalities, being a prerequisite for the development of an integrated and interconnected ecosystem, including infrastructural, social, and institutional components, are highlighted. It is proved that one of the methods is the use of the positive effects of the integration process, manifested in a new way at the level of local self-government. A structural and methodological model of integration interaction in the field of municipal infrastructure is suggested.
Method of identifying urban heat islands by remote sensing based on big data
Authors: Le Minh Tuan , Bakaeva Natalia , Danilina Nina , Hoang Thi Van Anh
Published: July 2023

In recent decades, the speed of construction, expansion, and development of smart cities by humans has been increasing faster, thanks to new technologies. However, alongside the fantastic development of new technologies also comes negative impacts such as climate change. One of the characteristics of climate change is the changing thermal comfort of humans living in the city. Heat stress is a feature of the urban heat island phenomenon. Congestion of airflows within the urban area causes localized hot areas, causing a temperature difference of 2-3 degrees between the areas inside the city and the suburbs. This study presents a method for determining surface temperature and the location of heat islands based on Google's cloud computing platform. The platform uses a combination of satellite imagery, Earth observation data, and machine learning algorithms to allow users to identify and measure changes in land use, ecosystems, and climate patterns at a global scale. Google Earth Engine enables researchers and organizations to process enormous amounts of data with short turnaround times. The method described in the article allows the analysis and retrieval of data in the large dataset of the Landsat 8 satellite. By determining the location of heat islands, the government, policymakers, and planners can develop plans to cope with the urban heat island phenomenon and improve the quality of life for residents.