The Electric Bicycle: Worldwide Research Trends

The bicycle has gone from being an old-fashioned recreational product to a less polluting means of transport and a compact, ultra-light personal mobility tool. This is how electrical bicycles will be used as the pillar that could support individual public transport in large cities worldwide. The objective of this manuscript is to detect how worldwide research on the electric bicycle is being developed, and, especially, around which scientific domains is it clustered, to finally identify the main trends in the field. This study has been carried out based on the Scopus database, where all the publications related to the topic of the electric bicycle have been analyzed up to the year 2017. ¨Therefore, research on the global research trends of this topic was conducted. Its evolution over time shows that since 2008 the growth of publications is much higher than in the previous period. The main countries are China and the USA, and it can be inferred that there are two major trend countries with high environmental awareness, which also have a large population and that the electric bicycle is a suitable and sustainable form of transport. Among the main scientific fields, engineering leads in research. The keyword analysis shows that the central theme is electric, then battery and motor stand out. A community detection was applied to detect the six main clusters of this research, largely dedicated to the following topics: Transportation–Environment, Electrical Engineering, Safety, Batteries, Sporting Goods–Urban Planning, and Mechanical Engineering. This manuscript shows that global research trends about the electric bicycle are increasing, and that it should be considered a means of sustainable urban transport and will therefore contribute to energy saving and sustainable energy.

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Global research trends in coronavirus disease 2019

Science and Technology Development Journal ◽

10.32508/stdj.v23i4.2432 ◽

2020 ◽

Vol 23 (4) ◽

Author(s):

Thai Thanh Tran ◽

Luu Thanh Pham

Keyword(s):

Research Trends ◽

Future Research ◽

Research Papers ◽

Global Epidemic ◽

Scientific Papers ◽

Global Status ◽

The Usa ◽

Number Of Publications ◽

Novel Coronavirus ◽

Global Research

Introduction: The outbreak of the novel coronavirus disease 2019 (COVID-19) is an ongoing global epidemic incident. The present study aims to bibliometrically analyze the global research trends of scientific papers related to COVID-19 with regard to the number of publications, subject categories, and prolific countries. A total of 47,061 publications, published during the last seven months, were collected and analyzed in this study. Methods: The bibliometric data in this study, which was extracted from the LitCovid Hub from January 17 to July 31, 2020. Results: Our results indicate that the number of publications on COVID-19 has increased significantly from January to July 2020, along with the rapid spread of the infection. China has produced the largest number of research papers on COVID-19 (5,751 articles, accounting for 12.2%), followed by the USA (2,005 publications, accounting for 4.3%) and Italy (1,374 publications, accounting for 2.9%). Most recent research papers have focused on prevention, treatment, and diagnosis. Our results reveal that although the most affected countries are the USA, Brazil, India, and many countries in Europe, their contribution to research about COVID-19 has been limited. Conclusion: More research in the field of prevention, diagnosis, and treatment from highly affected countries is recommended. Overall, this study not only provides a global status update on COVID-19 scientific literature but also contributes to future research.

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Global research trends in COVID-19 with MRI and PET/CT: a scoping review with bibliometric and network analyses

Clinical and Translational Imaging ◽

10.1007/s40336-021-00460-x ◽

2021 ◽

Author(s):

Nathaly Rivera-Sotelo ◽

Raul-Gabriel Vargas-Del-Angel ◽

Sergey K. Ternovoy ◽

Ernesto Roldan-Valadez

Keyword(s):

Scoping Review ◽

Research Trends ◽

Network Analyses ◽

Pet Ct ◽

Global Research

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Urban ecosystem services in strategic planning in Swedish municipalities

Urban Ecosystems ◽

10.1007/s11252-021-01113-7 ◽

2021 ◽

Author(s):

Åsa Ode Sang ◽

Frederik Aagaard Hagemann ◽

Nils Ekelund ◽

Jessica Svännel

Keyword(s):

Ecosystem Services ◽

Problem Solving ◽

Strategic Management ◽

Urban Ecosystem ◽

Practical Application ◽

Urban Ecosystem Services ◽

Large Cities ◽

Trade Offs ◽

Growing Body ◽

The Usa

AbstractResearch to date on urban ecosystem services has mainly been conducted in large cities, particularly in China, the USA and some European countries. This study examined the provision of urban ecosystem services in a Swedish municipality context, based on interviews with municipal stakeholders in strategic management and planning from six municipalities and a review of existing publications readily available to practitioners. The analysis focused on (1) the ecosystem services explicitly covered, (2) whether multifunctionality was covered and specific synergies and trade-offs identified and, (3) the spatial scale and context used for ecosystem services (valuation/mapping, planning, design or maintenance) in practical application. The results showed that regulatory services are very much the focus in municipal operations as well as in publications available to practitioners. This is reflected in the implementation of the concept through problem solving often related to regulatory services, using multifunctionality and win-win situations in ecosystem service supply. These findings contribute to the growing body of work exploring how the concept of ecosystem services is adapted and utilised in practice.

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Behavior of Traffic Congestion and Public Transport in Eight Large Cities in Latin America during the COVID-19 Pandemic

Applied Sciences ◽

10.3390/app11104703 ◽

2021 ◽

Vol 11 (10) ◽

pp. 4703

Author(s):

Renato Andara ◽

Jesús Ortego-Osa ◽

Melva Inés Gómez-Caicedo ◽

Rodrigo Ramírez-Pisco ◽

Luis Manuel Navas-Gracia ◽

...

Keyword(s):

Latin American ◽

Public Transport ◽

Public Transportation ◽

Traffic Congestion ◽

Urban Transport ◽

Control Measures ◽

Johns Hopkins Hospital ◽

Large Cities ◽

Public Data ◽

The Impact

This comparative study analyzes the impact of the COVID-19 pandemic on motorized mobility in eight large cities of five Latin American countries. Public institutions and private organizations have made public data available for a better understanding of the contagion process of the pandemic, its impact, and the effectiveness of the implemented health control measures. In this research, data from the IDB Invest Dashboard were used for traffic congestion as well as data from the Moovit© public transport platform. For the daily cases of COVID-19 contagion, those published by Johns Hopkins Hospital University were used. The analysis period corresponds from 9 March to 30 September 2020, approximately seven months. For each city, a descriptive statistical analysis of the loss and subsequent recovery of motorized mobility was carried out, evaluated in terms of traffic congestion and urban transport through the corresponding regression models. The recovery of traffic congestion occurs earlier and faster than that of urban transport since the latter depends on the control measures imposed in each city. Public transportation does not appear to have been a determining factor in the spread of the pandemic in Latin American cities.

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Ectopic pregnancy: exploration of its global research architecture using density-equalising mapping and socioeconomic benchmarks

BMJ Open ◽

10.1136/bmjopen-2017-018394 ◽

2017 ◽

Vol 7 (10) ◽

pp. e018394 ◽

Cited By ~ 1

Author(s):

Dörthe Brüggmann ◽

Jana Kollascheck ◽

David Quarcoo ◽

Michael H Bendels ◽

Doris Klingelhöfer ◽

...

Keyword(s):

Ectopic Pregnancy ◽

Gdp Per Capita ◽

Related Research ◽

Depth Analysis ◽

The Usa ◽

Per Capita ◽

The Uk ◽

Research Architecture ◽

Country Specific ◽

Global Research

ObjectiveAbout 2% of all pregnancies are complicated by the implantation of the zygote outside the uterine cavity and termed ectopic pregnancy. Whereas a multitude of guidelines exists and related research is constantly growing, no thorough assessment of the global research architecture has been performed yet. Hence, we aim to assess the associated scientific activities in relation to geographical and chronological developments, existing research networks and socioeconomic parameters.DesignRetrospective, descriptive study.SettingOn the basis of the NewQIS platform, scientometric methods were combined with novel visualising techniques such as density-equalising mapping to assess the scientific output on ectopic pregnancy. Using the Web of Science, we identified all related entries from 1900 to 2012.Results8040 publications were analysed. The USA and the UK were dominating the field in regard to overall research activity (2612 and 723 publications), overall citation numbers and country-specific H-Indices (US: 80, UK: 42). Comparison to economic power of the most productive countries demonstrated that Israel invested more resources in ectopic pregnancy-related research than other nations (853.41 ectopic pregnancy-specific publications per 1000 billlion US$ gross domestic product (GDP)), followed by the UK (269.97). Relation to the GDP per capita index revealed 49.3 ectopic pregnancy-specific publications per US$1000 GDP per capita for the USA in contrast to 17.31 for the UK. Semiqualitative indices such as country-specific citation rates ranked Switzerland first (24.7 citations per ectopic pregnancy-specific publication), followed by the Scandinavian countries Finland and Sweden. Low-income countries did not exhibit significant research activities.ConclusionsThis is the first in-depth analysis of global ectopic pregnancy research since 1900. It offers unique insights into the global scientific landscape. Besides the USA and the UK, Scandinavian countries and Switzerland can also be regarded as leading nations with regard to their relative socioeconomic input.

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The Analysis of Global Research Trends in Education in the Era of COVID-19: The Asia Pacific Region

Asia Review ◽

10.24987/snuacar.2021.8.11.2.187 ◽

2021 ◽

Vol 11 (2) ◽

pp. 187-215

Author(s):

Sunhee Kim

Keyword(s):

Research Trends ◽

Asia Pacific ◽

Pacific Region ◽

Asia Pacific Region ◽

Global Research

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Fish consumption prior to pregnancy and pregnancy outcomes in the National Birth Defects Prevention Study, 1997–2011

Public Health Nutrition ◽

10.1017/s1368980018002641 ◽

2018 ◽

Vol 22 (2) ◽

pp. 336-343

Author(s):

Renata H Benjamin ◽

Laura E Mitchell ◽

Mark A Canfield ◽

Adrienne T Hoyt ◽

Dejian Lai ◽

...

Keyword(s):

Preterm Birth ◽

Birth Defects ◽

Pregnancy Outcomes ◽

Fish Consumption ◽

Large Population ◽

Population Based ◽

Prevention Study ◽

Preparation Methods ◽

The Usa ◽

Early Preterm Birth

AbstractObjectiveTo evaluate the relationships between maternal fish consumption and pregnancy outcomes in a large, population-based sample of women in the USA.DesignWe collected average fish consumption prior to pregnancy using a modified version of the semi-quantitative Willett FFQ. We estimated adjusted OR (aOR) and 95 % CI for associations between different levels of fish consumption and preterm birth (<37 weeks), early preterm birth (<32 and <35 weeks) and small-for-gestational-age infants (SGA; <10th percentile).SettingThe National Birth Defects Prevention Study (NBDPS).SubjectsControl mother–infant pairs with estimated delivery dates between 1997 and 2011 (n 10 919).ResultsNo significant associations were observed between fish consumption and preterm birth or early preterm birth (aOR = 0·7–1·0 and 0·7–0·9, respectively). The odds of having an SGA infant were elevated (aOR = 2·1; 95 % CI 1·2, 3·4) among women with daily fish consumption compared with women consuming fish less than once per month. No associations were observed between other levels of fish consumption and SGA (aOR = 0·8–1·0).ConclusionsHigh intake of fish was associated with twofold higher odds of having an SGA infant, while moderate fish consumption prior to pregnancy was not associated with preterm or SGA. Our study, like many other studies in this area, lacked information regarding preparation methods and the specific types of fish consumed. Future studies should incorporate information on nutrient and contaminant contents, preparation methods and biomarkers to assess these relationships.

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A global bibliometric analysis of research on microplastics from 2004 to 2020

10.21203/rs.3.rs-216957/v1 ◽

2021 ◽

Author(s):

Ming Li ◽

Binshuo Liu ◽

Lei Wu ◽

Shuang Zhong ◽

Chunqing Wang ◽

...

Keyword(s):

Core Collection ◽

Environmental Science ◽

Web Of Science ◽

Environmental Problem ◽

Research Trends ◽

Research Directions ◽

Bibliographic Records ◽

Significant Interest ◽

The Usa ◽

The Web

Abstract Microplastics (MPs) pollution has garnered significant interest as a serious environmental problem. To date, a large amount of research has been published on this topic. We analyzed the related studies to assess the global developments of MPs regarding the evolution, research trends, and hotspots by bibliometric. A total of 2,872 bibliographic records were retrieved from the Web of Science Core Collection, and CiteSpace 5.4 was used for bibliometrics. The results visually displayed the contributing countries, institutions, authors, keywords, and potential research directions in the MPs fields. The scientific developments in this field began in 2004 and have accelerated considerably since 2012. China and the USA are the leading countries in MPs research. The research on MPs is multidisciplinary and involves Ecology, Chemistry, Molecular Biology, Environmental Science, and Oceanography. Among these, Oceanography was the most connected with MPs and was the most well-developed. Overall, we mapped the development of MPs research and attempted a comprehensive discussion and understanding of scientific advances, as well as the progress made.

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The Location of Services Involved with International Trade

Environment and Planning A Economy and Space ◽

10.1068/a190687 ◽

1987 ◽

Vol 19 (5) ◽

pp. 687-700 ◽

Cited By ~ 23

Author(s):

K O'Connor

Keyword(s):

Physical Activity ◽

Communication Technology ◽

Port Development ◽

Large Cities ◽

Producer Service ◽

The Usa ◽

Service Location ◽

Statistical Record ◽

Selection Of

Services that link buyer and seller across nations and continents have long been a part of city and port development, but have not attracted much research interest, perhaps because they remain (like their statistical record) ‘invisible’. Technical and structural change in the organisation of shipping, reflected largely in containerisation, have changed the context for these services and they have responded in a variety of ways. Data in this paper trace the location of a selection of these services in the USA and Australia, indicating a separation between services and negotiations on aspects of trade services, and new patterns of physical activity in trade. It is suggested that this separation may be facilitated by the standardisation that has come with containerisation, the importance of intercorporate linkages, the role of official markets, and the application of modern communication technology. These aspects account for the clustering of services in large cities and their separation from day-to-day trade business, and could provide insights for producer-service location in general. The paper indicates the need for survey work to test these ideas.

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