Article
Environmental Studies
Yingling Fan, Scott Orford, Philip Hubbard
Summary: COVID-19 has brought sudden and dramatic impacts on the organization and governance of urban life, leading to fundamentally new understandings of urban public health. We emphasize the association between pandemics and minority and vulnerable groups, both in the past and present. We document the emergence of participatory, community-led responses to the pandemic and the promise of more inclusive urban policies characterized by self-organization. We argue for public health policies to be mindful of local contingencies and strive for healthier cities for all, rather than solely protecting the health of the wealthy few.
Article
Environmental Studies
Gayatri Kawlra, Kazuki Sakamoto
Summary: This paper examines how the fragmentation of critical infrastructure affects the spread of the coronavirus outbreak in New York City at the neighborhood level. The study finds that the spatial arrangement of healthcare facilities, mobility networks, food and nutrition, and open space influences the geographic distribution of COVID-19 case rates. It highlights the importance of considering critical infrastructure metrics in analyzing urban health vulnerability in dense urban geographies.
Article
Environmental Studies
Mike Hodson, Andy Lockhart, Andrew Mcmeekin
Summary: Digital mobility platforms have become prevalent in urban contexts, but their response to COVID-19 is not clearly understood and requires systematic research engagement.
Article
Environmental Studies
Tomasz Noszczyk, Julia Gorzelany, Anita Kukulska-Kozie, Jozef Hernik
Summary: This study investigated the importance of green spaces to the public during the COVID-19 pandemic in Krakow, Poland. The findings showed that green spaces played a crucial role in the mental and physical health of residents during the crisis, with visits to these spaces reducing stress levels. The results have implications for urban spatial policies, green space management, and potential applications in other cities.
Article
Health Care Sciences & Services
Siwarat Pattanasri, Thi Phuoc Lai Nguyen, Thanh Bien Vu, Ekbordin Winijkul, Mokbul Morshed Ahmad
Summary: Due to digital inequality and social conditions, marginalized people are the most vulnerable group in the COVID-19 pandemic. This study investigated the digital competencies of slum residents and their access to COVID-19 online information, finding that slum residents with access to online information prioritize self-protection measures. However, elderly individuals, women, and foreign migrant workers face limitations in accessing COVID-19 online information.
Article
Construction & Building Technology
Bo Li, You Peng, He He, Mingshu Wang, Tao Feng
Summary: This study focuses on the spatial distribution of COVID-19 clusters in urban areas, analyzing the case clusters in the Huangzhou district of Huanggang city using GIS methods. It explores the relationship between built environment attributes and cluster size, finding significant direct and indirect influences of commercial vitality and transportation infrastructure on the number of cases. The findings provide evidence for local health authorities to make informed decisions in responding to possible severe epidemics by implementing sufficient measures in areas with high resident density.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Urban Studies
Somnath Bar, Bikash Ranjan Parida, Shyama Prasad Mandal, Arvind Chandra Pandey, Navneet Kumar, Bibhudatta Mishra
Summary: The COVID-19 pandemic has resulted in significant suffering, death, and economic losses worldwide. Strict containment measures have led to a decrease in atmospheric pollutants, particularly in urban areas where lockdowns were implemented. The study found that tropospheric NO2 concentrations significantly dropped in cities with lockdown measures, but decreased to a lesser extent in areas without lockdown measures.
Article
Green & Sustainable Science & Technology
Paola Minoia, Salla Jokela
Summary: The rise of digital platforms has facilitated a new generation of entrepreneurs in tourism and mobility, but has also introduced new forms of capitalist speculation. Short-term property rental has uneven impacts on communities, residents, and tourism operators, sparking issues of social justice and ethics, as well as governance challenges due to regulatory loopholes. With the outbreak of Covid-19, cities are taking action to regain control over data for better regulation of platform-mediated tourism services.
JOURNAL OF SUSTAINABLE TOURISM
(2022)
Article
Plant Sciences
Piata Marques, Andrey Santos Silva, Yane Quaresma, Luisa Resende Manna, Newton de Magalhaes Neto, Rosana Mazzoni
Summary: The current COVID-19 pandemic poses a major threat to human populations, causing both physical and mental distress. Urban green infrastructures, such as parks and gardens, play an important role in mitigating mental distress among residents, with home gardens being the most efficient in reducing psychological symptoms. This information can guide public programs in promoting mental health practices and help plan cities that are more resilient to future pandemics.
URBAN FORESTRY & URBAN GREENING
(2021)
Article
Mathematics, Interdisciplinary Applications
Nicolo Gozzi, Niccolo Comini, Nicola Perra
Summary: This study examines the determinants of adherence to non-pharmaceutical interventions during the first wave of the COVID-19 Pandemic in Colombia, Ecuador, and El Salvador. The results show a significant correlation between the quality of digital infrastructure and the level of adherence to NPIs.
Article
Business
Maged Ali, Lucas Moreira Gomes, Nahed Azab, Joao Gabriel de Moraes Souza, M. Karim Sorour, Herbert Kimura
Summary: This paper explores the potential association between the spread of fake news and panic buying behavior in urban and rural UK, particularly on Twitter during the COVID-19 pandemic. The research methodology involves extracting data from panic buying-related texts and analyzing the volume and rate of fake news classification using crowdsourcing techniques and text-mining models. The findings indicate a relationship between the patterns of panic buying behavior and the spread of fake news in urban and rural UK.
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
(2023)
Article
Communication
Yu Sun, Wilfred Yang Wang
Summary: This article explores China's health code system, Jian Kang Ma (JKM), as a new social infrastructure that embodies the symbolic and material power of the Party State. Using the platform walkthrough method and documentary inquiry, the study analyzes the structures of platform governance and identifies power actors to understand the socio-political dynamics of platform algorithms. JKM centralizes data systems through a nationwide algorithmic standard for COVID-19 governance, leading to the creation of a unified national subject.
POLICY AND INTERNET
(2022)
Article
Business
Maria Sarabia, Fernando Crecente, Maria Teresa del Val
Summary: This paper identifies Health, Longevity, Infrastructure, and Competitiveness as the Four Horsemen of COVID-19 and examines their relationship with virus transmission. While the presence of these factors implies higher virus transmission, higher annual health system expenditure is associated with lower COVID-19 incidence rates.
JOURNAL OF BUSINESS RESEARCH
(2021)
Article
Public, Environmental & Occupational Health
Sandra Bond Chapman, Julie M. Fratantoni, Ian H. Robertson, Mark D'Esposito, Geoffrey S. F. Ling, Jennifer Zientz, Stacy Vernon, Erin Venza, Lori G. Cook, Aaron Tate, Jeffrey S. Spence
Summary: This study demonstrated that the majority of participants showed at least a 5-point increase in their BrainHealth Index, regardless of age, education, or gender. The improvements were attributed to all sub-domains, including stress, anxiety, and resilience, despite the training focus on cognition. Some individuals benefited from enhanced resilience and reduced anxiety, while others benefited from increased innovation and social engagement. Larger gains were associated with module utilization, particularly strategy training. An exploratory factor analysis of the correlation matrix identified three latent constructs.
FRONTIERS IN PUBLIC HEALTH
(2021)
Article
Ethics
Andrew S. Hoffman, Bart Jacobs, Bernard van Gastel, Hanna Schraffenberger, Tamar Sharon, Berber Pas
Summary: In early 2020, governments worldwide implemented emergency lockdown measures in response to the rapid spread of Covid-19. Contact tracing apps are now being used as part of plans to reopen society, with some critics questioning their effectiveness. This paper explores the ethical and political implications of design choices in such apps, highlighting the potential for ethical reflection and political debate.
ETHICS AND INFORMATION TECHNOLOGY
(2021)
Article
Psychology, Clinical
Xiaojing Li, Wei Deng, Rui Xue, Qiang Wang, Hongyan Ren, Wei Wei, Yamin Zhang, Mingli Li, Liansheng Zhao, Xiangdong Du, Yajing Meng, Xiaohong Ma, Mei-Hua Hall, Tao Li
Summary: This study found deficits in event-related potential, including duration mismatch negativity and P3a, in drug naive patients with chronic schizophrenia and bipolar disorder. These deficits appeared to be related to levels of higher-order cognition and functioning.
PSYCHOLOGICAL MEDICINE
(2023)
Article
Materials Science, Ceramics
Renzhong Xue, Liuyang Zhao, Siyuan Chen, Hongxuan Chen, Mengru Cui, Xintao Bai, Tao Li, Dewei Liu, Haiyang Dai
Summary: The effects of A-site transition from Ca2+ to Cd2+ on the microstructure, morphology, and electrical properties of Ca(1-x)CdxCu(3)Ti(4)O(12) thin films were investigated. The films exhibited smooth and compact surfaces without cracks. The transition from Ca2+ to Cd2+ resulted in changes in grain size and electrical properties. In particular, the simultaneous occupancy of A sites by Ca2+ and Cd2+ improved the dielectric and nonlinear properties of Ca1-xCdxCu3Ti4O12 films.
CERAMICS INTERNATIONAL
(2023)
Article
Orthopedics
Long Pang, Kefan Mou, Yinghao Li, Tao Li, Jian Li, Jing Zhu, Xin Tang
Summary: This study compared the clinical outcomes of single-limb (SL) and double-limb (DL) graft medial patellofemoral ligament (MPFL) reconstructions in patients with recurrent patellar dislocation. The results showed that DL graft reconstruction resulted in better postoperative outcomes in terms of recurrent instability, anterior patella-related pain, patellar lateral shift rate, and functional scores compared to SL graft reconstruction. However, the amount of high-quality evidence is insufficient, and further research is needed to confirm these findings.
AMERICAN JOURNAL OF SPORTS MEDICINE
(2023)
Article
Materials Science, Ceramics
Haiyang Dai, Qinlong Shen, Jing Chen, Zijiong Li, Zhenping Chen, Luogang Xie, Tao Li
Summary: Cu1_xHoxFeO2 nanoceramics were synthesized by sol-gel method to investigate the influence of vacancy defects and Fe valence state tuning on their magnetic and dielectric properties. XRD and Raman analysis confirmed the formation of single-phase delafossite structure. XPS analysis revealed that Ho3+ substitution could tune the Fe valence state, while positron annihilation lifetime spectroscopy showed that it could effectively tailor the cation vacancies concentration in the interface region. Magnetic measurements indicated that Ho3+ substitution enhanced the magnetic transition temperatures and magnetization, while Cu1_xHoxFeO2 nanoceramics exhibited giant dielectric characteristic attributed to charge ordering of Fe3+ and Fe2+.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Zhizhang Wang, Jitao Ji, Xin Ye, Yuxin Chen, Xueyun Li, Wange Song, Bin Fang, Ji Chen, Shining Zhu, Tao Li
Summary: This study proposes a miniaturized compact strategy to enlarge the beam steering angle in optical phased array (OPA) by integrating a metasurface-doublet with a port-selected OPA. The metasurface-doublet, composed of convex and concave metalenses with quadratic phase distribution, is precisely fabricated layer by layer on the OPA chip, which is made of Lithium Niobate on Insulator (LNOI). Experimental results show that the proposed method achieves 1.54 times FOV amplification in the horizontal direction with > 41% working efficiency. This research provides a feasible approach for wide-angle beam steering and a powerful platform for developing integrated multilayer metasurface devices.
Article
Engineering, Biomedical
Linghong Zhang, Tao Li, Yan Yu, Kun Shi, Zhongwu Bei, Yongjun Qian, Zhiyong Qian
Summary: Researchers have developed a self-healing conductive hydrogel by grafting polypyrrole onto gelatin, which shows good biocompatibility and electrical conductivity. Injection of this hydrogel after myocardial infarction improves cardiac function, reduces the occurrence of arrhythmias, and decreases inflammation in the infarcted area.
BIOACTIVE MATERIALS
(2023)
Article
Physics, Applied
Jing Chen, Guangzhou Zhang, Haiyan Wang, Tao Li, Fufeng Yan, Ying Li, Haiyang Dai
Summary: The effects of Sm doping on the structure, vacancy characteristics, valence states of constituent elements, and magnetic performances of Gd1-xSmxMnO3 ceramics were investigated. The results showed that Sm doping induced lattice deformation in all ceramics and affected the vacancy concentration and Mn4+ content. Sm doping also had a significant impact on the low temperature magnetic ordering, transition temperatures, and magnetization. The magnetic characteristics of Gd1-xSmxMnO3 samples were closely related to the cation vacancies and the creation of Mn4+.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2023)
Article
Optics
Peiji Zhou, Ting Li, Yucheng Lin, Lipeng Xia, Li Shen, Xiaochuan Xu, Tao Li, Yi Zou
Summary: By leveraging the artificial gauge field mechanism, a dense waveguide array with a half-wavelength pitch, low-crosstalk, and broadband capability has been demonstrated in silicon. This approach enables flexible routing and significant reduction in on-chip estate, leading to a high-density photonic integrated circuit.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Jitao Ji, Zhizhang Wang, Jiacheng Sun, Chen Chen, Xueyun Li, Bin Fang, Shi-Ning Zhu, Tao Li
Summary: In this study, we propose a novel method for on-chip generation and manipulation of higher-order Poincare sphere beams (HOPBs) by combining metasurface with optical waveguides on a lithium niobate on insulator platform. By using a diatomic geometric metasurface for phase modulation, guided waves are extracted into free space with high signal-to-noise ratio and formed into two orthogonal circularly polarized optical vortices which are linearly superposed into HOPBs. Additionally, a dual-port waveguide crossing is utilized to reconfigure the output states into an arbitrary point on a higher-order Poincare sphere based on in-plane interference of two guided waves. This approach provides a compact solution for generating and manipulating HOPBs and can be further enhanced by employing electro-optical modulation on a lithium niobate waveguide for full tunability.
Article
Optics
Yanhao Chu, Xingjian Xiao, Xin Ye, Chen Chen, Shining Zhu, Tao Li
Summary: In this study, a design method is proposed to achieve large scale achromatic hybrid lens with no residual dispersion by considering the refraction element and metasurface together as a whole. The tradeoff between the meta-unit library and the characteristics of resulting hybrid lenses is also discussed in detail, and a centimeter scale achromatic hybrid lens is realized to demonstrate the effectiveness of the method.
Article
Engineering, Biomedical
Xi Li, Xiangyi Ren, Maodi Xie, Mengli Zhu, Yabing Zhang, Tao Li, Minfeng Huo, Qian Li
Summary: Researchers have synthesized BSA-coated RuO2 nanoparticles that can scavenge reactive oxygen species and reduce myocardial ischemia/reperfusion injury. These nanoparticles mimic enzymes and can reduce infarcted areas and restore cardiac function. They have high clinical potential for IR injury treatment.
ADVANCED NANOBIOMED RESEARCH
(2023)
Article
Optics
Shengjie Wu, Wange Song, Jiacheng Sun, Zhiyuan Lin, Haoran Xin, Shining Zhu, Tao Li
Summary: Broadband asymmetric light transport is achieved in non-Hermitian coupled waveguide triplet on the lithium niobate-on-insulator (LNOI) platform. A particular mode selection and shortcut to adiabaticity are used to enhance transmission efficiency and reduce device length. This work opens up new possibilities for on-chip light manipulations in the LNOI photonic platform.
LASER & PHOTONICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Haoran Xin, Wange Song, Shengjie Wu, Zhiyuan Lin, Shining Zhu, Tao Li
Summary: Non-Hermitian skin effects enrich traditional band theories and exhibit unique topological properties. The authors reveal a new type of NHSE, known as V-shaped NHSE, and demonstrate it in an on-chip optical ring resonator platform. By controlling hopping and loss modulation, they construct a phase diagram that shows the NHSE phase transition. In addition to conventional and frequency-dependent bipolar NHSE, a V-shaped NHSE is observed with a distinct distribution of skin states. The authors design a silicon ring resonator array to showcase the nontrivial NHSE and show that the number of states at different ends can be tuned by continuously switching between conventional, bipolar, and V-shaped NHSE. This work expands our understanding of NHSE and suggests potential applications in on-chip light modulation.
Article
Biochemistry & Molecular Biology
Yongyan Zhang, Dingquan Huang, Bin Wang, Xuelian Yang, Huan Wu, Pengyan Qu, Li Yan, Tao Li, Chunzhen Cheng, Dongliang Qiu
Summary: In this study, fifteen candidate anthocyanin biosynthesis related MYB (ABRM) proteins were identified from highbush blueberry, including twelve R2R3-MYBs and three 1R-MYBs. The subcellular localization prediction results showed that most of the blueberry ABRMs were nucleus-localized, except for VcRVE8. The gene structure analysis revealed a wide range of exon numbers in the blueberry ABRM genes. The promoters of the blueberry ABRM genes contained various responsive elements related to light, phytohormones, abiotic stress, and plant growth and development. Additionally, the expression analysis showed that VcMYB, VcMYB6, VcMYB23, VcMYBL2, and VcPH4 were abundantly expressed in blueberry fruits, with VcMYB being the highest in red, purple, and blue fruits. The study provides valuable information for future research on anthocyanin biosynthesis related MYBs in blueberry.
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Chen Chen, Wange Song, Zhiyuan Lin, Shengjie Wu, Shining Zhu, Tao Li
Summary: This research proposes a method to manipulate the topological phases by rotating pillars and demonstrates polarization-dependent one-way light propagation in silicon. This finding promises more interesting explorations of on-chip light manipulation.
