scholarly journals Bibliometric Analysis of Remote Sensing of Inland Waters Publications from 1985 to 2020

Geographies ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 346-361
Author(s):  
Igor Ogashawara
Keyword(s):  
Remote Sensing ◽  
Bibliometric Analysis ◽  
Future Research ◽  
Inland Waters ◽  
Aquatic Environments ◽  
Scientific Publications ◽  
Earth Observations ◽  
The Past ◽  
Remote Sensing Techniques ◽  
The Relationship

Over the past few decades, there has been a significant increase in the number of studies about the use of remote sensing techniques for the monitoring of inland waters. Since these aquatic environments have multiple uses for mankind, monitoring them is essential for the environment, society, and the economy. The use of Earth Observations data for the monitoring of inland waters is important for water quantity and quality management. Because of this, the goal of the present study is to systematically analyze and visualize the evolution of publications in this field. This study will not focus on algorithm comparisons or descriptions; instead, it will use a co-citation analysis to map the relationship among publications. Using the Web of Science database, publications related to the terms, “remote sensing” + “inland waters”, were analyzed using the entire database. The bibliometric analysis showed how research topics evolved from measuring optical properties and understanding their signal to the development of remote sensing algorithms and their applications to satellite imagery. This study provides the historical development of the scientific publications in this field and points out what could be the direction for future research.

scholarly journals Determination of Phycocyanin from Space—A Bibliometric Analysis

2020 ◽  
Vol 12 (3) ◽  
pp. 567
Author(s):  
Igor Ogashawara
Keyword(s):  
Remote Sensing ◽  
Bibliometric Analysis ◽  
Water Quality Monitoring ◽  
Development Trend ◽  
Future Research ◽  
Observation Data ◽  
The Past ◽  
The Status ◽  
Earth Observation Data ◽  
Remote Sensing Techniques

Over the past few decades, there has been an increase in the number of studies about the estimation of phycocyanin derived from remote sensing techniques. Since phycocyanin is a unique pigment of inland water cyanobacteria, the quantification of its concentration from earth observation data is important for water quality monitoring - once some species can produce toxins. Because of the growth of this field in the past decade, several reviews and studies comparing algorithms have been published. Thus, instead of focusing on algorithms comparison or description, the goal of the present study is to systematically analyze and visualize the evolution of publications. Using the Web of Science database this study analyzed the existing publications on remote sensing of phycocyanin decade-by-decade for the period 1991–2020. The bibliometric analysis showed how research topics evolved from measuring pigments to the quantification of optical properties and from laboratory experiments to measuring entire temperate and tropical aquatic systems. This study provides the status quo and development trend of the field and points out what could be the direction for future research.

scholarly journals Tocopherols and Tocotrienols—Bioactive Dietary Compounds; What Is Certain, What Is Doubt?

2021 ◽  
Vol 22 (12) ◽  
pp. 6222
Author(s):  
Kacper Szewczyk ◽  
Aleksandra Chojnacka ◽  
Magdalena Górnicka
Keyword(s):  
Vitamin E ◽  
Metabolic Disorders ◽  
Tissue Concentration ◽  
Biological Properties ◽  
Biological Role ◽  
Future Research ◽  
The Past ◽  
The Subject ◽  
The Relationship

Tocopherols and tocotrienols are natural compounds of plant origin, available in the nature. They are supplied in various amounts in a diet, mainly from vegetable oils, some oilseeds, and nuts. The main forms in the diet are α- and γ-tocopherol, due to the highest content in food products. Nevertheless, α-tocopherol is the main form of vitamin E with the highest tissue concentration. The α- forms of both tocopherols and tocotrienols are considered as the most metabolically active. Currently, research results indicate also a greater antioxidant potential of tocotrienols than tocopherols. Moreover, the biological role of vitamin E metabolites have received increasing interest. The aim of this review is to update the knowledge of tocopherol and tocotrienol bioactivity, with a particular focus on their bioavailability, distribution, and metabolism determinants in humans. Almost one hundred years after the start of research on α-tocopherol, its biological properties are still under investigation. For several decades, researchers’ interest in the biological importance of other forms of vitamin E has also been growing. Some of the functions, for instance the antioxidant functions of α- and γ-tocopherols, have been confirmed in humans, while others, such as the relationship with metabolic disorders, are still under investigation. Some studies, which analyzed the biological role and mechanisms of tocopherols and tocotrienols over the past few years described new and even unexpected cellular and molecular properties that will be the subject of future research.

scholarly journals Research Trends of Acupuncture Therapy on Cancer Over the Past Two Decades: A Bibliometric Analysis

2020 ◽  
Vol 19 ◽  
pp. 153473542095944
Author(s):  
Jing Guo ◽  
Lixia Pei ◽  
Lu Chen ◽  
Hao Chen ◽  
Dongmei Gu ◽  
...  
Keyword(s):  
Neuropathic Pain ◽  
Acupuncture Therapy ◽  
Supportive Care ◽  
Bibliometric Analysis ◽  
Integrative Medicine ◽  
Clinical Studies ◽  
Current Status ◽  
Cancer Center ◽  
Future Research ◽  
The Past

Purpose: Acupuncture has been used for managing cancer-related symptoms. However, there are still few studies concerning the overall trends in acupuncture therapy on cancer based on bibliometric analysis. This study aims to demonstrate the current status and trends in this field over the past 2 decades. Methods: Articles were retrieved from the Web of Science from 2000 to 2019. CiteSpace was used for co-authorship network of countries/institutions, dual-map analysis, and detecting the keywords with citation bursts. VOSviewer was used to construct networks based on co-authorship and co-citation analysis of authors, and co-occurrence of keywords. Results: A total of 927 articles and reviews were included in the final analysis. The number of publications has steadily increased with some fluctuations among years. The country and institution contributing most to this field are the USA and Memorial Sloan Kettering Cancer Center. Mao JJ was the most productive author and Molassiotis A ranked first in the cited authors. The co-occurrence analysis revealed 5 clusters (including “clinical trials,” “clinical studies on chemotherapy/radiation-induced symptoms,” “CAM therapy for cancer,” “clinical studies on vasomotor symptoms,” and “systematic reviews”). Most recent keyword bursts were “neuropathic pain,” “arthralgia,” “prevention,” “supportive care,” and “integrative medicine”. Conclusions: The annual publication output would increase rapidly in the next decade, which shows a promising future in this research field. Future research hotspots would focus on the role of acupuncture in neuropathic pain, arthralgia, prevention, supportive care, and integrative medicine.

The Relationship Between Urban Renewal and the Built Environment: A Systematic Review and Bibliometric Analysis

2021 ◽  
pp. 088541222110589
Author(s):  
Hao Wang ◽  
Na Liu ◽  
Junhua Chen ◽  
Shan Guo
Keyword(s):  
Built Environment ◽  
Urban Renewal ◽  
Bibliometric Analysis ◽  
Web Of Science ◽  
Interaction Mechanism ◽  
Future Research ◽  
Multiple Stakeholders ◽  
Future Research Agenda ◽  
Environmental Development ◽  
The Relationship

Urban renewal and the built environment have become two of the hottest topics in urban planning studies. Although existing literature has started to examine both of them from different perspectives, a comprehensive review with a bibliometric analysis is necessary to fully reveal the association between them. To overcome these gaps, this paper critically reviews the literature on urban renewal and the built environment and proposes a novel research framework to systematically understand the relationship between them. Based on 155 articles which were published between 2001 and 2020 collected from the Web of Science Core Collection Database, a bibliometric analysis offers the overall development and trajectory of the existing research, and a critical review fully analyzes the relationship between the two topics from three perspectives: main categories of urban renewal, multiple stakeholders, and economic, social and environmental development needs. To better clarify the interaction mechanism between urban renewal and the built environment and guide further research in this area, a future research agenda is also provided.

Fire, people and ecosystem change in Pleistocene Australia

2016 ◽  
Vol 64 (8) ◽  
pp. 643 ◽  
Author(s):  
Christopher N. Johnson
Keyword(s):  
Fire Regimes ◽  
Ecosystem Change ◽  
Future Research ◽  
Cascading Effects ◽  
Continental Scale ◽  
The Past ◽  
The 1960S ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship

Since the 1960s, Australian scientists have speculated on the impact of human arrival on fire regimes in Australia, and on the relationship of landscape fire to extinction of the Pleistocene megafauna of Australia. These speculations have produced a series of contrasting hypotheses that can now be tested using evidence collected over the past two decades. In the present paper, I summarise those hypotheses and review that evidence. The main conclusions of this are that (1) the effects of people on fire regimes in the Pleistocene were modest at the continental scale, and difficult to distinguish from climatic controls on fire, (2) the arrival of people triggered extinction of Australia’s megafauna, but fire had little or no role in the extinction of those animals, which was probably due primarily to hunting and (3) megafaunal extinction is likely to have caused a cascade of changes that included increased fire, but only in some environments. We do not yet understand what environmental factors controlled the strength and nature of cascading effects of megafaunal extinction. This is an important topic for future research.

scholarly journals Water stress coefficient determined by orbital remote sensing techniques

2020 ◽  
Vol 24 (12) ◽  
pp. 847-853
Author(s):  
Élvis da S. Alves ◽  
Roberto Filgueiras ◽  
Lineu N. Rodrigues ◽  
Fernando F. da Cunha ◽  
Catariny C. Aleman
Keyword(s):  
Remote Sensing ◽  
Water Stress ◽  
Irrigation Management ◽  
Simple Algorithm ◽  
Landsat 8 ◽  
Stress Coefficient ◽  
Use Efficiency ◽  
Remote Sensing Techniques ◽  
Water Stress Coefficient ◽  
The Relationship

ABSTRACT In regions where the irrigated area is increasing and water availability is reduced, such as the West of the Bahia state, Brazil, the use of techniques that contribute to improving water use efficiency is paramount. One of the ways to improve irrigation is by improving the calculation of actual evapotranspiration (ETa), which among other factors is influenced by soil drying, so it is important to understand this relationship, which is usually accounted for in irrigation management models through the water stress coefficient (Ks). This study aimed to estimate the water stress coefficient (Ks) through information obtained via remote sensing, combined with field data. For this, a study was carried out in the municipality of São Desidério, an area located in western Bahia, using images of the Landsat-8 satellite. Ks was calculated by the relationship between crop evapotranspiration and ETa, calculated by the Simple Algorithm for Evapotranspiration Retrieving (SAFER). The Ks estimated by remote sensing showed, for the development and medium stages, average errors on the order of 5.50%. In the final stage of maize development, the errors obtained were of 23.2%.

Digital Health Literacy: A Bibliometric Analysis (Preprint)

2021 ◽  
Author(s):  
Keng Yang ◽  
Yekang Hu ◽  
Hanying Qi
Keyword(s):  
Health Literacy ◽  
Health Outcomes ◽  
Digital Divide ◽  
Bibliometric Analysis ◽  
Digital Health ◽  
The United States ◽  
Research Progress ◽  
Future Research ◽  
Scientific Publications ◽  
Number Of Publications

BACKGROUND Digital health is growing at a rapid pace, and digital health literacy has tremendous potential to promote health outcomes, bridge the digital divide, and improve health inequalities. OBJECTIVE The purposes of this study are to conduct a systematic bibliometric analysis on the field of dig-ital health literacy and to understand the research context and trends in this field. METHODS A total of 1,955 scientific publications were collected from the Web of Science (WoS) core col-lection. Institutional cooperation, journal co-citation, theme bursting, keyword co-occurrence, author cooperation, author co-citation, literature co-citation and references in the field of digi-tal health literacy were analyzed using the VOSviewer and CiteSpace knowledge mapping tools. RESULTS The results demonstrated that the United States was the leader in number of publications and citations in this field. The University of California System was first in terms of institutional contributions. The Journal of Medical Internet Research led in number of publications, cita-tions and co-citations. Research areas in the field of digital health literacy mainly include the definition and scale of health literacy, health literacy and health outcomes, health literacy and the digital divide, and the influencing factors of health literacy. CONCLUSIONS We summarize research progress in the field of digital health literacy and reveal the context, trends, and trending topics of digital health literacy research through statistical analysis and network visualization. Our work can serve as a fundamental reference and directional guide for future research in this field.

A comprehensive analysis of the 21st century's research trends in English Mobile Learning: a bibliographic review of the literature

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rouhollah Khodabandelou ◽  
Masood Fathi ◽  
Mohammad Amerian ◽  
Mohammad Reza Fakhraie
Keyword(s):  
Bibliometric Analysis ◽  
Mobile Learning ◽  
Research Trends ◽  
Current Status ◽  
Future Research ◽  
Review Of Literature ◽  
Content Type ◽  
The Past ◽  
Learning Research ◽  
Points Of View

PurposeThis study examines the importance of English Mobile Learning research as a foundation for lifelong and sustainable education from different points of view, including those of technology innovation experts, psychologists and educators. It aims to explore the current status and relevant research trends through the application of bibliometric mapping and bibliometric analysis.Design/methodology/approachFor this study, all Web of Science records (in total 5,343) from 2000 to 2020 in the field of English Mobile Learning were analyzed using the VOSviewer and CiteSpace software tools. The WoS built-in functions, including “Refine” and “Analyze,” were employed to perform the bibliometric analysis. The study further analyzed a sample of the five most-cited articles to identify the previous studies with the highest quality or impact.FindingsThe results showed that research in English Mobile Learning is growing quickly and steadily with a noticeable emphasis on various device-based technologies and applications. The study also discusses the key implications for research institutions, education policymakers and academicians, and identifies the most prominent avenues for future research on English Mobile Learning. Moreover, the results shared in this review highlight the most important and emerging areas of research in the field.Originality/valueThis article is the most recent bibliographic review of literature that particularly addresses the English Mobile Learning research during the past two decades.

Teacher Leadership

2015 ◽  
pp. 257-282 ◽  
Author(s):  
Servet Özdemir ◽  
Ali Çağatay Kılınç
Keyword(s):  
School Improvement ◽  
Teacher Leadership ◽  
School Context ◽  
Important Variable ◽  
Future Research ◽  
Leadership Roles ◽  
The Past ◽  
Research Areas ◽  
Factors Influencing ◽  
The Relationship

This chapter focuses on teacher leadership, an important variable in the classroom and school improvement literature. The concept of teacher leadership has attracted increased attention in the past two decades. Teachers are assuming more responsibility for leadership roles and functions within schools. Despite the considerable amount of scholarly effort and time spent on investigating the teacher leadership concept, less is known about how it flourishes in the school context and how it relates to classroom and school improvement. Therefore, this chapter tries to shed some light on the teacher leadership concept and discusses its meaning, teacher leadership roles, factors influencing teacher leadership, the relationship between teacher leadership and classroom and school improvement, and future research areas on teacher leadership. Offering a framework for teacher leadership, this chapter is expected to contribute well to the guidance of further research on teacher leadership.

scholarly journals Production Trends, Collaboration, and Main Topics of the Integrative and Complementary Oncology Research Area: A Bibliometric Analysis

2019 ◽  
Vol 18 ◽  
pp. 153473541984640 ◽  
Author(s):  
Jose A. Moral-Munoz ◽  
Lidia Carballo-Costa ◽  
Enrique Herrera-Viedma ◽  
Manuel J. Cobo
Keyword(s):  
Bibliometric Analysis ◽  
The United States ◽  
Research Area ◽  
Current Status ◽  
Future Research ◽  
Nf Kappa B ◽  
Republic Of China ◽  
The Past ◽  
Oncology Research ◽  
Complementary Oncology

Background: The prevalence of cancer has increased over time worldwide. Nevertheless, the number of deaths has been reduced during the past 2 decades. Thus, one-third of the cancer patients are users of complementary and alternative therapies, looking for other types of interventions. The main aim of the present study is to understand the current status of the research in integrative and complementary oncology. Three different aspects were analyzed: production trends, country collaboration, and leading research topics. Methods: The dataset was obtained from the documents indexed under the Integrative and Complementary Medicine category of the Web of Science database from 1976 to 2017. VOSviewer and SciMAT software were employed to perform the bibliometric analysis. Results: The Journal of Ethnopharmacology, China Medical University and the People’s Republic of China are the leading producers in the field. Regarding the collaboration, the United States and China present a close connection. The scientific community is focused on the following topics: apoptosis, breast cancer, oxidative stress, chemotherapy, and nuclear factor-Kappa-B (NF-Kappa-B). Conclusions: The present article shows potentially important information that allows understanding of the past, present, and future of research in integrative and complementary oncology. It is a useful evidence-based framework on which to base future research actions and academic directions.

Sign in / Sign up

Export Citation Format

Share Document