Determination of low concentrations of glucose through colorimetric analysis using CoFe < sub > 2 < /sub > O < sub > 4 < /sub > magnetic catalyst and SAT-3
In this study, magnetic CoFe2O4 was prepared using a precipitation method as a natural enzyme mimetic. CoFe2O4 showed excellent peroxidase-like activity, as demonstrated by the Michaelis-Menten constant (Km) and the maximum velocity (Vmax). The linear ranges of the calibration curves for H2O2 and glucose were in the range of 0-500 µM, and the detection limits were 1.83 and 5.91 µM, respectively. This analytical method was applied for the determination of glucose in human serum, and the results were satisfactory and consistent with certified values. The performance of this sensor was comparable to or superior to those of ...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Kurumi Matsui Hideyuki Katsumata Mai Furukawa Ikki Tateishi Satoshi Kaneco Source Type: research
Exploring changes in residential preference during COVID-19: Implications to contemporary urban planning
Environ Plan B Urban Anal City Sci. 2023 Jun;50(5):1280-1297. doi: 10.1177/23998083231164398. Epub 2023 Mar 23.ABSTRACTThe advent of the COVID-19 pandemic and the subsequent lockdown has reshuffled our daily routines and activity spaces. The home and its immediate environment have attained a critical role in coping with the confinement both as living, working and recreational space. Drawing on a longitudinal survey from greater Oslo, we analyze shifts in residential preferences amidst COVID-19. Given the pandemic induced movement restrictions, we pay special attention to the mediating role of perceived accessibility on the...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Fitwi Wolday Lars B öcker Source Type: research
GeoInfographic design of the multi-spatiality of borders: A case study of epidemic prevention and control in Ruili, China
Environ Plan B Urban Anal City Sci. 2023 May;50(4):1126-1129. doi: 10.1177/23998083231165999. Epub 2023 Apr 1.ABSTRACTWe live in a world of borders, which influence our perception and movement. Traditional mapping techniques show limitations as borders have become shifting and complex, and borders' multi-scale and multi-spatial properties have been strengthened significantly. To fill the knowledge gap, we explored the multi-spatiality of borders and provided approaches for border symbol design and visualization by taking the coronavirus-hit border city, Ruili, China, as an example. This work could shed light on multi-spati...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Ziwei Jiang Xi Tang Hong Zhang Source Type: research
The post-pandemic world: Are big cities hollowing out?
Environ Plan B Urban Anal City Sci. 2023 Jul;50(6):1409-1412. doi: 10.1177/23998083231188188. Epub 2023 Jul 1.NO ABSTRACTPMID:38602944 | PMC:PMC10315509 | DOI:10.1177/23998083231188188 (Source: Anal Sci)
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Michael Batty Source Type: research
An overview of urban analytical approaches to combating the Covid-19 pandemic
Environ Plan B Urban Anal City Sci. 2023 Jun;50(5):1133-1143. doi: 10.1177/23998083231174748. Epub 2023 May 4.NO ABSTRACTPMID:38602958 | PMC:PMC10160829 | DOI:10.1177/23998083231174748 (Source: Anal Sci)
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: X Angela Yao Andrew Crooks Bin Jiang Jukka Krisp Xintao Liu Haosheng Huang Source Type: research
Using call detail records to determine mobility patterns of different socio-demographic groups in the western area of Sierra Leone during early COVID-19 crisis
Environ Plan B Urban Anal City Sci. 2023 Jun;50(5):1298-1312. doi: 10.1177/23998083231158377. Epub 2023 Jun 6.ABSTRACTHuman mobility patterns created from mobile phone call detail records (CDRs) can provide an essential resource in data-poor environments to monitor the effects of health outbreaks. Analysis of this data can be instrumental for understanding the movement pattern of populations allowing governments to set and refine policies to respond to community health risks. Building on CDR mobility analysis techniques, this research set out to test whether combining CDR mobility indicators with socio-economic information...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Yanchao Li Ziyu Ran Lily Tsai Sarah Williams Source Type: research
Using mobile phone big data to discover the spatial patterns of rural migrant workers' return to work in China's three urban agglomerations in the post-COVID-19 era
Environ Plan B Urban Anal City Sci. 2023 May;50(4):878-894. doi: 10.1177/23998083211069375. Epub 2022 Feb 2.ABSTRACTKnowing how workers return to work is a key policymaking issue for economic recovery in the post-COVID-19 era. This paper uses country-wide time-series mobile phone big data (comparing monthly and annual figures), obtained between February 2019 and October 2019 and between February 2020 and October 2020, to discover the spatial patterns of rural migrant workers' (RMWs') return to work in China's three urban agglomerations (UAs): the Beijing-Tianjin-Hebei Region, the Yangtze River Delta and the Pearl River Del...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Kai Liu Pengjun Zhao Dan Wan Xiaodong Hai Zhangyuan He Qiyang Liu Yonghui Qu Xue Zhang Kaixi Li Ling Yu Source Type: research
The uneven reaction to combat the COVID-19 pandemic: Geovisualizing of fever clinics in mainland China
This study presents two fever clinic maps that visualize the uneven responses to the COVID-19 pandemic at the city level in mainland China. The maps highlight more resources in the southwest, northwest, east, and south China, and paucity in the far west parts of southwest and northwest China and in the north and northeast China.PMID:38603119 | PMC:PMC9482942 | DOI:10.1177/23998083221128303 (Source: Anal Sci)
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Guoqi Li Zhuoshi Lv Fahui Wang Gang Chen Wenjie Sun Yuting Shi Sijing Liu Source Type: research
Impact of COVID-19 policies on pedestrian traffic and walking patterns
This study aims to identify, quantify, and analyze the changes in pedestrian traffic and walking patterns induced by COVID-19 policies. The "first wave" period of COVID-19 policies in Tel-Aviv, Israel, is used as a case study in this work. The analysis includes over 116 million pedestrian movement records documented by a network of 65 Bluetooth sensors, between 1.2.2020 and 26.7.2020, with a comparison to the equivalent time in 2019 that signifies "normal" pre-COVID-19 conditions. The results show clear correlation between the various COVID-19 policy restrictions and pedestrian count. The shifts to work-from-home and closu...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Avital Angel Achituv Cohen Sagi Dalyot Pnina Plaut Source Type: research
Transit communication via Twitter during the COVID-19 pandemic
Environ Plan B Urban Anal City Sci. 2023 Jun;50(5):1244-1261. doi: 10.1177/23998083221135609. Epub 2022 Nov 10.ABSTRACTTransit providers have used social media (e.g., Twitter) as a powerful platform to shape public perception and provide essential information, especially during times of disruption and disaster. This work examines how transit agencies used Twitter during the COVID-19 pandemic to communicate with riders and how the content and general activity influence rider interaction and Twitter handle popularity. We analyzed 654,345 tweets generated by the top 40 transit agencies in the US, based on Vehicles Operated in...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Wenwen Zhang Camille Barchers Janille Smith-Colin Source Type: research
Spatial variations of the third and fourth COVID-19 waves in Hong Kong: A comparative study using built environment and socio-demographic characteristics
This study analyses spatial patterns of the third and fourth COVID-19 epidemic waves and then evaluates the spatial relationship between case incidence and built environment and socio-demographic characteristics. By collecting local-related cases, this study incorporates a two-fold analytical strategy: (1) Using rank-size distribution and log-odd ratio to depict the spatial pattern of COVID-19 incidence rates; (2) through global and local regression models, investigating incidence's associations with the urban built environment and socio-demographic characteristics. The results reveal that the two different epidemic waves ...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Zidong Yu Xintao Liu Source Type: research
COVID-19 impacts on non-work travel patterns: A place-based investigation using smartphone mobility data
This study compares non-work-related travel patterns between the pre- and during COVID-19 pandemic in the City of El Paso, Texas. By utilizing smartphone mobility data, we captured the visitation data for major non-work destinations such as restaurants, supermarkets, drinking places, religious organizations, and parks. We used Census block groups (n = 424) within the city and divided them into low- and high-income neighborhoods based on the citywide median. Overall, the total frequency of visitations and the distances traveled to visit these non-work destinations were influenced by the COVID-19 pandemic. However, significa...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Yang Song Sungmin Lee Amaryllis H Park Chanam Lee Source Type: research
Monitoring the well-being of vulnerable transit riders using machine learning based sentiment analysis and social media: Lessons from COVID-19
Environ Plan B Urban Anal City Sci. 2023 Jan;50(1):60-75. doi: 10.1177/23998083221104489.ABSTRACTUsing open-source data, we show that despite significant reductions in global public transit during the COVID-19 pandemic, ∼20% of ridership continues during social distancing measures. Current urban transport data collection methods do not account for the distinct behavioural and psychological experiences of the population. Therefore, little is known about the travel experience of vulnerable citizens that continue to rely on public transit and their concerns over risk, safety and other stressors that could negatively affect ...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Martino Tran Christina Draeger Xuerou Wang Abbas Nikbakht Source Type: research
Predicting onset risk of COVID-19 symptom to support healthy travel route planning in the new normal of long-term coexistence with SARS-CoV-2
Environ Plan B Urban Anal City Sci. 2023 Jun;50(5):1212-1227. doi: 10.1177/23998083221127703. Epub 2022 Sep 17.ABSTRACTDue to the increased outdoor transmission risk of new SARS-COV-2 variants, the health of urban residents in daily travel is being threatened. In the new normal of long-term coexistence with SARS-CoV-2, how to avoid being infected by SARS-CoV-2 in daily travel has become a key issue. Hence, a spatiotemporal solution has been proposed to assist healthy travel route planning. Firstly, an enhanced urban-community-scale geographic model was proposed to predict daily COVID-19 symptom onset risk by incorporating ...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Chengzhuo Tong Wenzhong Shi Anshu Zhang Zhicheng Shi Source Type: research
COVID-19 pandemic and minority health disparities in New York City: A spatial and temporal perspective
This study selects eight phases, each of which consists of 2 weeks to derive infection and mortality rates to investigate the impacts of those factors. As infection and mortality data are published based on ZIP code, this study further estimates the infection and mortality rates at a finer level of census tract through spatial apportionment. Results reveal the significant impact of mobility-restricted transit on both infection and mortality and show certain clusters of neighborhoods being highly impacted. In addition, this study identifies neighborhoods where native-born and foreign-born of each ethnic minority (Blacks, Hi...
Source: Anal Sci - April 11, 2024 Category: Chemistry Authors: Rui Li Youqin Huang Source Type: research
