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21,917 Results Found

  • Review
  • Open Access
1 Citations
4,214 Views
22 Pages

15 August 2025

SARS-CoV-2 infection can be followed by prolonged symptoms, signs and sequelae, collectively known under the term Long COVID. Hundreds of millions are estimated to suffer from Long COVID. Long COVID, therefore, is a public health crisis that deserves...

  • Article
  • Open Access
4,833 Views
7 Pages

17 August 2016

The concept of a real definition worked out by Kazimierz Ajdukiewicz is still important in the theory of definition and can be developed by applying Hilary Putnam’s theory of reference of natural kind terms and Karl Popper’s fallibilism. On the one h...

  • Article
  • Open Access
1,026 Views
16 Pages

What Is a Vitamin? Towards a Contemporary Definition

  • Andreas Hahn,
  • Manfred Eggersdorfer and
  • Felix Kerlikowsky

12 December 2025

Background: The concept of vitamins has evolved over the past century from compounds preventing classical deficiency diseases to nutrients recognized for supporting long-term health. Despite their central role in science and public health, existing d...

  • Communication
  • Open Access
82 Citations
11,595 Views
5 Pages

Updating the Definition of the Alcohol Hangover

  • Joris C. Verster,
  • Andrew Scholey,
  • Aurora J.A.E. van de Loo,
  • Sarah Benson and
  • Ann-Kathrin Stock

18 March 2020

In 2016, the Alcohol Hangover Research Group defined the alcohol hangover as “the combination of mental and physical symptoms experienced the day after a single episode of heavy drinking, starting when blood alcohol concentration (BAC) approach...

  • Article
  • Open Access
48 Citations
46,537 Views
20 Pages

23 October 2017

Definitions, uses, and understanding of technology have varied tremendously since Jacob Bigelow’s Elements of Technology in 1829. In addition to providing a frame of reference for understanding technology, the purpose of this study was to define or d...

  • Editorial
  • Open Access
173 Citations
51,786 Views
14 Pages

Considering the Definition of Addiction

  • Steve Sussman and
  • Alan N. Sussman

The definition of addiction is explored. Elements of addiction derived from a literature search that uncovered 52 studies include: (a) engagement in the behavior to achieve appetitive effects, (b) preoccupation with the behavior, (c) temporary satiat...

  • Article
  • Open Access
31 Citations
8,668 Views
24 Pages

19 March 2014

The principal methods for the definition of thermodynamic entropy are discussed with special reference to those developed by Carathéodory, the Keenan School, Lieb and Yngvason, and the present authors. An improvement of the latter method is then pres...

  • Article
  • Open Access
1 Citations
1,322 Views
21 Pages

22 March 2025

To write terminological definitions that meet user needs, terminologists require methods that help them effectively select the most relevant information to be included in a definition. In this sense, a corpus technique that can be useful for the defi...

  • Review
  • Open Access
29 Citations
4,939 Views
18 Pages

Definition of Sarcopenia in Chronic Liver Disease

  • Seong Wan Son,
  • Do Seon Song,
  • U Im Chang and
  • Jin Mo Yang

16 April 2021

Sarcopenia, which is characterized by decline in muscle mass, muscle strength, and physical performance, is common in patients with chronic liver disease (CLD) and is associated with poor clinical outcomes. Several consensus definitions for community...

  • Review
  • Open Access
3 Citations
8,341 Views
26 Pages

30 April 2025

Digital trust is increasingly crucial for successful interactions in modern digital environments. However, the existing literature lacks a unified definition and a comprehensive understanding of its core factors. This study addresses these gaps by co...

  • Article
  • Open Access
137 Citations
18,161 Views
16 Pages

28 October 2022

The term Metaverse has received much attention in various industries, in society, and, increasingly, in scientific communities. This creates demand for a comprehensive and broadly accepted definition of the subject, which is well grounded in research...

  • Feature Paper
  • Review
  • Open Access
14 Citations
4,248 Views
11 Pages

Polydrug use is a very common phenomenon and represents an important public health problem. The definition of the term has varied since its inception, and consequently so have forms of self-report evaluation. The aim of this review is to offer an ove...

  • Proceeding Paper
  • Open Access
1,906 Views
3 Pages

For an universal and scale-invariant definition of information the idea of a “smallest” information is discussed. Elementary information is defined. For the utilization of this approach the question of the further emergent development of elementary i...

  • Article
  • Open Access
9 Citations
4,007 Views
19 Pages

2 September 2021

Project definition refers to the first three stages of a project life cycle, namely planning, programming, and preliminary design during which client needs are identified and translated into design solutions. An ill-defined hospital project definitio...

  • Systematic Review
  • Open Access
1,425 Views
12 Pages

Definitions of Incidental [18F]FDG PET/CT Findings in the Literature: A Systematic Review and Definition Proposal

  • Jacob Pilegaard Mølstrøm,
  • Natascha Lange,
  • Manan Pareek,
  • Anders Thomassen,
  • Anne Lerberg Nielsen,
  • Poul Flemming Høilund-Carlsen,
  • Christian Godballe and
  • Max Rohde

9 December 2024

Objectives: The objectives of this study were (1) to systematically review the currently used definitions of incidental 2-deoxy-2-[18F]fluoro-D-glucose positron emission tomography/computed tomography findings (IPFs) in the literature and (2) to prop...

  • Article
  • Open Access
1 Citations
3,034 Views
18 Pages

6 October 2021

Definitions are extremely important for efficient learning of new materials. In particular, mathematical definitions are necessary for understanding mathematics-related areas. Automated extraction of definitions could be very useful for automated ind...

  • Review
  • Open Access
16 Citations
5,562 Views
10 Pages

Back to Basics: Recognition of Sepsis with New Definition

  • Jan Horak,
  • Vendula Martinkova,
  • Jaroslav Radej and
  • Martin Matejovič

1 November 2019

Patients with serious infections at risk of deterioration represent highly challenging clinical situations, and in particular for junior doctors. A comprehensive clinical examination that integrates the assessment of vital signs, hemodynamics, and pe...

  • Review
  • Open Access
916 Citations
92,638 Views
15 Pages

Definition of the Mediterranean Diet; A Literature Review

  • Courtney Davis,
  • Janet Bryan,
  • Jonathan Hodgson and
  • Karen Murphy

5 November 2015

Numerous studies over several decades suggest that following the Mediterranean diet (MedDiet) can reduce the risk of cardiovascular disease and cancer, and improve cognitive health. However, there are inconsistencies among methods used for evaluating...

  • Review
  • Open Access
19 Citations
6,668 Views
18 Pages

Acute exacerbations in chronic obstructive pulmonary disease (AECOPD) are associated with increased mortality, rate of hospitalization, use of healthcare resources, and have a negative impact on disease progression, quality of life and lung function...

  • Article
  • Open Access
6 Citations
3,901 Views
19 Pages

29 January 2022

Decisions regarding project definition have a significant impact on client value generation. However, although this phase is of utmost importance, traditional management practices are inadequate, as the focus is rather on budget and technical aspects...

  • Proceeding Paper
  • Open Access
2 Citations
2,495 Views
5 Pages

Workshop on Positive Energy Buildings—Definition

  • Mia Ala-Juusela,
  • Cristian Pozza,
  • Jaume Salom,
  • Iván Luque Segura,
  • Andreas Tuerk,
  • Roberto Lollini,
  • Niki Gaitani and
  • Annamaria Belleri

The building sector plays an important role in the transition to a climate-neutral society. The international interest in low, zero energy, or zero-emission buildings has grown as a potential means for this transition. A more ambitious step from zero...

  • Article
  • Open Access
13 Citations
3,467 Views
23 Pages

A Quantitative Positive Energy District Definition with Contextual Targets

  • Simon Schneider,
  • Thomas Zelger,
  • David Sengl and
  • José Baptista

This paper presents the goals and components of a quantitative energy balance assessment framework to define Positive Energy Districts (PEDs) flexibly in three important contexts: the context of the district’s density and local renewable energy...

  • Commentary
  • Open Access
3 Citations
5,633 Views
5 Pages

Historically, serial homicide has been defined in various ways by experts. Recently, there have been renewed efforts to arrive at a consensus definition, yet these efforts have not yet been resolved. At the heart of the controversy appears to be the...

  • Article
  • Open Access
9 Citations
4,579 Views
10 Pages

Definition of Personalized Medicine and Targeted Therapies: Does Medical Familiarity Matter?

  • Valentyn Fournier,
  • Thomas Prebet,
  • Alexandra Dormal,
  • Maïté Brunel,
  • Robin Cremer and
  • Loris Schiaratura

4 January 2021

Personalized medicine (PM) is increasingly becoming a topic of discussion in public health policies and media. However, there is no consensus among definitions of PM in the scientific literature and the terms used to designate it, with some definitio...

  • Review
  • Open Access
390 Citations
32,447 Views
22 Pages

Towards a Transversal Definition of Psychological Resilience: A Literature Review

  • Antonella Sisto,
  • Flavia Vicinanza,
  • Laura Leondina Campanozzi,
  • Giovanna Ricci,
  • Daniela Tartaglini and
  • Vittoradolfo Tambone

16 November 2019

Background and objectives: This paper addresses psychological resilience, a multidisciplinary theoretical construct with important practical implications for health sciences. Although many definitions have been proposed in several contexts, an essent...

  • Article
  • Open Access
22 Citations
4,960 Views
13 Pages

Towards a Common Definition for the Diagnosis of Iron Deficiency in Chronic Inflammatory Diseases

  • Patrice Cacoub,
  • Gabriel Choukroun,
  • Alain Cohen-Solal,
  • Elisabeth Luporsi,
  • Laurent Peyrin-Biroulet,
  • Katell Peoc’h,
  • Valérie Andrieu,
  • Sigismond Lasocki,
  • Hervé Puy and
  • Jean-Noël Trochu

28 February 2022

Iron deficiency (ID) in patients with chronic inflammatory diseases is frequent. However, under-diagnosis is also frequent due to the heterogeneity between guidelines from different medical societies. We applied a common definition for the diagnosis...

  • Review
  • Open Access
28 Citations
5,549 Views
17 Pages

Being homebound (HB) can affect people’s physical and mental health by decreasing movement, which can itself be exacerbated by the deterioration of people’s health. To break this vicious cycle of HB and being in poor health, it is necessary to identi...

  • Article
  • Open Access
44 Citations
8,600 Views
20 Pages

Industry 4.0: A Technological-Oriented Definition Based on Bibliometric Analysis and Literature Review

  • Mario Rupp,
  • Max Schneckenburger,
  • Markus Merkel,
  • Rainer Börret and
  • David K. Harrison

Industry 4.0 was introduced in 2011 and since then has been perceived in multiple ways such as a vision, a paradigm, a scenario or as a digital revolution in production and service organizations. Even though Industry 4.0 is associated with great impr...

  • Article
  • Open Access
7 Citations
6,684 Views
42 Pages

Sensor-Generated Time Series Events: A Definition Language

  • Aurea Anguera,
  • Juan A. Lara,
  • David Lizcano,
  • Maria Aurora Martínez and
  • Juan Pazos

29 August 2012

There are now a great many domains where information is recorded by sensors over a limited time period or on a permanent basis. This data flow leads to sequences of data known as time series. In many domains, like seismography or medicine, time serie...

  • Article
  • Open Access
77 Citations
15,236 Views
33 Pages

Definition of the Traditional Mexican Diet and Its Role in Health: A Systematic Review

  • Selene Valerino-Perea,
  • Laura Lara-Castor,
  • Miranda Elaine Glynis Armstrong and
  • Angeliki Papadaki

17 November 2019

Promoting traditional diets could potentially reduce the current high rates of non-communicable diseases (NCDs) globally. While the traditional Mexican diet (TMexD) could be specifically promoted in Mexico, a concise definition of the TMexD and evide...

  • Systematic Review
  • Open Access
2,297 Views
19 Pages

Conceptualizing the Knowledge Region: A Systematic Literature Review and a Proposed Definition

  • Antonio Calero-López,
  • Aaron Gutiérrez and
  • Francesc Xavier Grau

1 June 2025

Knowledge-based regional development policies have become increasingly popular in recent decades and have been widely disseminated and applied. The regional scale and regional policy have been no exception to this general trend, resulting in the coin...

  • Review
  • Open Access
75 Citations
13,789 Views
13 Pages

Acute Kidney Injury Definition and Diagnosis: A Narrative Review

  • Joana Gameiro,
  • Jose Agapito Fonseca,
  • Sofia Jorge and
  • Jose Antonio Lopes

28 September 2018

Acute kidney injury (AKI) is a complex syndrome characterized by a decrease in renal function and associated with numerous etiologies and pathophysiological mechanisms. It is a common diagnosis in hospitalized patients, with increasing incidence in r...

  • Article
  • Open Access
3,566 Views
24 Pages

What Is Environmental Biotechnology? Although Widely Applied, a Clear Definition of the Term Is Still Needed

  • Sonia Heaven,
  • Sigrid Kusch-Brandt,
  • Louise Byfield,
  • Angela Bywater,
  • Frederic Coulon,
  • Thomas Curtis,
  • Tony Gutierrez,
  • Adrian Higson and
  • Jhuma Sadhukhan

The term Environmental Biotechnology is widely used, but lacks a universally accepted definition, with varying interpretations across disciplines and sectors leading to challenges in funding, policy formulation, and interdisciplinary collaboration. T...

  • Article
  • Open Access
16 Citations
3,756 Views
15 Pages

Periodontitis in Ischemic Stroke Patients: Case Definition Challenges of the New Classification Scheme (2018)

  • Cristina Andrada Costea,
  • Ruxandra Christodorescu,
  • Andrada Soancă,
  • Alexandra Roman,
  • Iulia Cristina Micu,
  • Ștefan Ioan Stratul,
  • Darian Rusu,
  • Dora Maria Popescu,
  • Aurel Popa-Wagner and
  • Adriana Elena Bulboacă

20 January 2022

The identification of the associative relationships between ischemic stroke (IS) and risk factors such as advanced age and periodontitis is essential to design real screening protocols and to address them using primary and secondary preventive polici...

  • Review
  • Open Access
13 Citations
4,808 Views
19 Pages

8 June 2023

The role of sustainable biomass, including wood biomass, is becoming increasingly important due to the European Green Deal. In the context of developing a sustainable bioeconomy, the use of wood depends on many physical, biological, technological, en...

  • Article
  • Open Access
8 Citations
2,582 Views
13 Pages

16 August 2021

Decorative paper and wood veneer have been widely used in the surface decoration of wood-based panels. These surface decoration methods require two-dimensional image acquisition of natural wood grain to obtain the digital grain. However, optically sc...

  • Article
  • Open Access
1 Citations
2,334 Views
25 Pages

Online Quantitative Analysis of Perception Uncertainty Based on High-Definition Map

  • Mingliang Yang,
  • Xinyu Jiao,
  • Kun Jiang,
  • Qian Cheng,
  • Yanding Yang,
  • Mengmeng Yang and
  • Diange Yang

17 December 2023

Environmental perception plays a fundamental role in decision-making and is crucial for ensuring the safety of autonomous driving. A pressing challenge is the online evaluation of perception uncertainty, a crucial step towards ensuring the safety and...

  • Systematic Review
  • Open Access
9 Citations
1,678 Views
12 Pages

30 January 2024

Background: Aseptic loosening is one of the most common modes of failure of total ankle replacement (TAR). However, a precise definition of aseptic loosening is still lacking. This systematic review aimed to identify the variations of applied definit...

  • Article
  • Open Access
3,717 Views
10 Pages

15 June 2024

The mind holds crucial significance in Buddhism that encompasses a distinct understanding. While Daniel Siegel defines the “mind” as an embodied and relational process responsible for regulating energy and information flow, this article e...

  • Concept Paper
  • Open Access
46 Citations
4,569 Views
13 Pages

The W.A.I.O.T. Definition of High-Grade and Low-Grade Peri-Prosthetic Joint Infection

  • Carlo Luca Romanò,
  • Hazem Al Khawashki,
  • Thami Benzakour,
  • Svetlana Bozhkova,
  • Hernán del Sel,
  • Mahmoud Hafez,
  • Ashok Johari,
  • Guenter Lob,
  • Hemant K Sharma and
  • Lorenzo Drago
  • + 1 author

The definition of peri-prosthetic joint infection (PJI) has a strong impact on the diagnostic pathway and on treatment decisions. In the last decade, at least five different definitions of peri-prosthetic joint infection (PJI) have been proposed, eac...

  • Article
  • Open Access
11 Citations
9,747 Views
20 Pages

The automotive industry has experienced remarkable growth in recent decades, with a significant focus on advancements in autonomous driving technology. While still in its early stages, the field of autonomous driving has generated substantial researc...

  • Article
  • Open Access
48 Citations
13,007 Views
21 Pages

27 June 2022

Organizations are under mounting pressure to adapt to and to adopt corporate sustainability (CS) practices. Notwithstanding the increasing research attention given to the subject and the meaningful theoretical contributions, it is claimed that a defi...

  • Article
  • Open Access
2,335 Views
12 Pages

30 October 2024

This article explores the significance of context in defining death, particularly through the lens of the Harvard definition and the critiques offered by Josef Seifert. The Harvard definition, established in 1968, is examined within its medical conte...

  • Article
  • Open Access
1 Citations
3,101 Views
13 Pages

1 March 2024

This work explores the definition and characterization of synthetic polymeric oligomers, chemical substances comprising a small number of repeated organic molecules. It highlights the lack of clarity surrounding the range of repeated units that can b...

  • Article
  • Open Access
1 Citations
2,406 Views
18 Pages

25 June 2024

Background: High-definition maps can provide necessary prior data for autonomous driving, as well as the corresponding beyond-line-of-sight perception, verification and positioning, dynamic planning, and decision control. It is a necessary element to...

  • Review
  • Open Access
12 Citations
7,902 Views
20 Pages

A Review of Crowdsourcing Update Methods for High-Definition Maps

  • Yuan Guo,
  • Jian Zhou,
  • Xicheng Li,
  • Youchen Tang and
  • Zhicheng Lv

High-definition (HD) maps serve as crucial infrastructure for autonomous driving technology, facilitating vehicles in positioning, environmental perception, and motion planning without being affected by weather changes or sensor-visibility limitation...

  • Feature Paper
  • Article
  • Open Access
9,534 Views
38 Pages

Online High-Definition Map Construction for Autonomous Vehicles: A Comprehensive Survey

  • Hongyu Lyu,
  • Julie Stephany Berrio Perez,
  • Yaoqi Huang,
  • Kunming Li,
  • Mao Shan and
  • Stewart Worrall

High-definition (HD) maps aim to provide detailed road information with centimeter-level accuracy, essential for enabling precise navigation and safe operation of autonomous vehicles (AVs). Traditional offline construction methods involve several com...

  • Concept Paper
  • Open Access
66 Citations
8,345 Views
17 Pages

Child and Youth Health Literacy: A Conceptual Analysis and Proposed Target-Group-Centred Definition

  • Janine Bröder,
  • Orkan Okan,
  • Torsten M. Bollweg,
  • Dirk Bruland,
  • Paulo Pinheiro and
  • Ullrich Bauer

(1) Background: This article adopts an interdisciplinary perspective to analyse, examine, and reflect upon prominent health literacy (HL) understandings in childhood and youth. (2) Method: The conceptual analysis combined Rodgers’ and Jabareen&...

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