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1,038 Results Found

  • Article
  • Open Access
1 Citations
2,188 Views
18 Pages

10 August 2020

This paper investigates the detection of the transmitted power violation (TPV) in the satellite-terrestrial integrated network, where the terrestrial base station may break the spectrum policies so that severe damages are made to the satellite system...

  • Review
  • Open Access
13 Citations
4,136 Views
26 Pages

Design Guidelines for Database-Driven Internet of Things-Enabled Dynamic Spectrum Access

  • Dayan A. Guimarães,
  • Elivander J. T. Pereira,
  • Antônio M. Alberti and
  • Jonas V. Moreira

4 May 2021

The radio-frequency spectrum shortage, which is primarily caused by the fixed allocation policy, is one of the main bottlenecks to the deployment of existing wireless communication networks, and to the development of new ones. The dynamic spectrum ac...

  • Article
  • Open Access
5 Citations
2,406 Views
19 Pages

11 September 2024

The anticipated surge of Internet of Things (IoT) devices is expected to intensify the demand for mid-band spectrum resources, posing challenges to traditional spectrum sharing methods. This paper addresses the limitations of static database-assisted...

  • Article
  • Open Access
4 Citations
4,399 Views
16 Pages

Cognitive radio (CR) technology is envisioned to use wireless spectrum opportunistically when the primary user (PU) is not using it. In cognitive radio ad-hoc networks (CRAHNs), the mobile users form a distributed multi-hop network using the unused s...

  • Article
  • Open Access
12 Citations
3,004 Views
21 Pages

30 December 2019

Apart from the received signal energy, auxiliary information plays an important role in remarkably ameliorating conventional spectrum sensing. In this paper, a novel spectrum sensing scheme aided by geolocation information is proposed. In the cellula...

  • Article
  • Open Access
33 Citations
7,277 Views
14 Pages

The mTOR Signaling Pathway Activity and Vitamin D Availability Control the Expression of Most Autism Predisposition Genes

  • Ekaterina A. Trifonova,
  • Alexandra I. Klimenko,
  • Zakhar S. Mustafin,
  • Sergey A. Lashin and
  • Alex V. Kochetov

15 December 2019

Autism spectrum disorder (ASD) has a strong and complex genetic component with an estimate of more than 1000 genes implicated cataloged in SFARI (Simon′s Foundation Autism Research Initiative) gene database. A significant part of both syndromic...

  • Article
  • Open Access
12 Citations
4,903 Views
12 Pages

Do Autism Spectrum and Autoimmune Disorders Share Predisposition Gene Signature Due to mTOR Signaling Pathway Controlling Expression?

  • Ekaterina A. Trifonova,
  • Alexandra I. Klimenko,
  • Zakhar S. Mustafin,
  • Sergey A. Lashin and
  • Alex V. Kochetov

Autism spectrum disorder (ASD) is characterized by uncommon genetic heterogeneity and a high heritability concurrently. Most autoimmune disorders (AID), similarly to ASD, are characterized by impressive genetic heterogeneity and heritability. We cond...

  • Article
  • Open Access
21 Citations
5,237 Views
17 Pages

12 April 2018

In order to realize reliable Vehicle-to-Vehicle (V2V) communication systems for autonomous driving, the recognition of radio propagation becomes an important technology. However, in the current wireless distributed network systems, it is difficult to...

  • Article
  • Open Access
14 Citations
2,935 Views
17 Pages

A systematic investigation of the experimental 13C-NMR spectra published in Molecules during the period of 1996 to 2015 with respect to their quality using CSEARCH-technology is described. It is shown that the systematic application of the CSEARCH-Ro...

  • Article
  • Open Access
1 Citations
2,204 Views
14 Pages

6 November 2020

In spectroscopy, matching a measured spectrum to a reference spectrum in a large database is often computationally intensive. To solve this problem, we propose a novel fast search algorithm that finds the most similar spectrum in the database. The pr...

  • Article
  • Open Access
1 Citations
2,219 Views
15 Pages

Partial discharge is an important symptom of cable aging, and timely detection of potential defects is of great significance to ensure the stability and safety of the power supply. However, due to the diversity of inspection equipment and information...

  • Article
  • Open Access
2,439 Views
18 Pages

3 May 2023

Crystopal is a mechanically strong yet highly decorative plastic with a translucent and crackled appearance that was produced in the 1960s by the artist and plastics engineer Armand G. Winfield (1919–2009) and his company, Crystopal, Ltd. Many...

  • Article
  • Open Access
40 Citations
6,100 Views
12 Pages

Remote Detection of the Fluorescence Spectrum of Natural Pollens Floating in the Atmosphere Using a Laser-Induced-Fluorescence Spectrum (LIFS) Lidar

  • Yasunori Saito,
  • Kentaro Ichihara,
  • Kenzo Morishita,
  • Kentaro Uchiyama,
  • Fumitoshi Kobayashi and
  • Takayuki Tomida

24 September 2018

A mobile laser-induced fluorescence spectrum (LIFS) lidar was developed for monitoring pollens floating in the atmosphere. The fluorescence spectrum of pollens excited at 355 nm was measured with a fluorescence spectrometer and the results suggested...

  • Article
  • Open Access
3 Citations
1,839 Views
14 Pages

22 April 2024

Hylurgus ligniperda is an imported quarantine plant pest in China. Its identification is usually based on morphological characteristics; therefore, species identification needs high professional requirements of staff and professionals with high exper...

  • Article
  • Open Access
10 Citations
3,383 Views
15 Pages

Expanding the Knowledge Related to Flavors and Fragrances by Means of Three-Dimensional Preparative Gas Chromatography and Molecular Spectroscopy

  • Gemma De Grazia,
  • Lorenzo Cucinotta,
  • Archimede Rotondo,
  • Paola Donato,
  • Luigi Mondello and
  • Danilo Sciarrone

As universally known, gas chromatography (GC) coupled with mass spectrometry (MS) allows us to acquire spectra that can be searched in specific databases to attain qualitative information on a peak of interest. When not present in databases, structur...

  • Article
  • Open Access
5 Citations
3,295 Views
19 Pages

Construction of the Global Reference Atmospheric Profile Database

  • Yuhang Guo,
  • Xiaoying Li,
  • Tianhai Cheng,
  • Shenshen Li,
  • Xinyuan Zhang,
  • Wenjing Lu and
  • Weifang Fang

8 June 2023

Atmospheric profiles are important input parameters for atmospheric radiative transfer models and atmospheric parameter inversions. The construction of regionally representative reference atmospheric profiles can provide basic data for global atmosph...

  • Article
  • Open Access
34 Citations
10,185 Views
22 Pages

18 February 2013

This work presents a heart sound biometric system based on marginal spectrum analysis, which is a new feature extraction technique for identification purposes. This heart sound identification system is comprised of signal acquisition, pre-processing,...

  • Article
  • Open Access
12 Citations
6,333 Views
11 Pages

FoodPro: A Web-Based Tool for Evaluating Covariance and Correlation NMR Spectra Associated with Food Processes

  • Eisuke Chikayama,
  • Ryo Yamashina,
  • Keiko Komatsu,
  • Yuuri Tsuboi,
  • Kenji Sakata,
  • Jun Kikuchi and
  • Yasuyo Sekiyama

19 October 2016

Foods from agriculture and fishery products are processed using various technologies. Molecular mixture analysis during food processing has the potential to help us understand the molecular mechanisms involved, thus enabling better cooking of the ana...

  • Article
  • Open Access
14 Citations
9,603 Views
15 Pages

A Public Database for Microplastics in the Environment

  • Natalja Čerkasova,
  • Kristina Enders,
  • Robin Lenz,
  • Sonja Oberbeckmann,
  • Josef Brandt,
  • Dieter Fischer,
  • Franziska Fischer,
  • Matthias Labrenz and
  • Gerald Schernewski

15 February 2023

During recent years plastics became one of the focuses of EU policy. A harmonisation and comparability of microplastics monitoring results across Europe is needed. The complexity of microplastic data makes it necessary to develop a specific, tailor-m...

  • Perspective
  • Open Access
10 Citations
3,762 Views
9 Pages

Bioinformatics Approaches Applied to the Discovery of Antifungal Peptides

  • Carmen Rodríguez-Cerdeira,
  • Alberto Molares-Vila,
  • Carlos Daniel Sánchez-Cárdenas,
  • Jimmy Steven Velásquez-Bámaca and
  • Erick Martínez-Herrera

Antifungal peptides (AFPs) comprise a group of substances with a broad spectrum of activities and complex action mechanisms. They develop in nature via an evolutionary process resulting from the interactions between hosts and pathogens. The AFP datab...

  • Article
  • Open Access
2 Citations
3,092 Views
18 Pages

15 July 2023

Ground-motion simulations provide input time history data required for designing and assessing structures; however, the simulations conducted by the currently available tools only match the design spectrum without verifying if the statistical charact...

  • Article
  • Open Access
3 Citations
3,382 Views
11 Pages

The Belgian Repository of Fundamental Atomic Data and Stellar Spectra (BRASS)

  • Alex Lobel,
  • Pierre Royer,
  • Christophe Martayan,
  • Michael Laverick,
  • Thibault Merle,
  • Mathieu Van der Swaelmen,
  • Peter A. M. van Hoof,
  • Marc David,
  • Herman Hensberge and
  • Emmanuel Thienpont

22 November 2019

Background: BRASS (Belgian Repository of Fundamental Atomic Data and Stellar Spectra) is an international networking project for the development of a new public database providing accurate fundamental atomic data of vital importance for stellar spect...

  • Article
  • Open Access
1,997 Views
21 Pages

A New Texture Spectrum Based on Parallel Encoded Texture Unit and Its Application on Image Classification: A Potential Prospect for Vision Sensing

  • José Trinidad Guillen Bonilla,
  • Nancy Elizabeth Franco Rodríguez,
  • Héctor Guillen Bonilla,
  • Alex Guillen Bonilla,
  • Verónica María Rodríguez Betancourtt,
  • Maricela Jiménez Rodríguez,
  • María Eugenia Sánchez Morales and
  • Oscar Blanco Alonso

10 October 2023

In industrial applications based on texture classification, efficient and fast classifiers are extremely useful for quality control of industrial processes. The classifier of texture images has to satisfy two requirements: It must be efficient and fa...

  • Article
  • Open Access
18 Citations
5,577 Views
18 Pages

Building an International One Health Strain Level Database to Characterise the Epidemiology of AMR Threats: ESBL—AmpC Producing E. coli as An Example—Challenges and Perspectives

  • Sara Perestrelo,
  • Ana Amaro,
  • Michael S. M. Brouwer,
  • Lurdes Clemente,
  • Ana Sofia Ribeiro Duarte,
  • Annemarie Kaesbohrer,
  • Renata Karpíšková,
  • Vicente Lopez-Chavarrias,
  • Dearbháile Morris and
  • Julio Alvarez
  • + 8 authors

Antimicrobial resistance (AMR) is one of the top public health threats nowadays. Among the most important AMR pathogens, Escherichia coli resistant to extended spectrum cephalosporins (ESC-EC) is a perfect example of the One Health problem due to its...

  • Feature Paper
  • Review
  • Open Access
97 Citations
6,358 Views
24 Pages

The Leiden Atomic and Molecular Database (LAMDA): Current Status, Recent Updates, and Future Plans

  • Floris F. S. van der Tak,
  • François Lique,
  • Alexandre Faure,
  • John H. Black and
  • Ewine F. van Dishoeck

28 April 2020

The Leiden Atomic and Molecular Database (LAMDA) collects spectroscopic information and collisional rate coefficients for molecules, atoms, and ions of astrophysical and astrochemical interest. We describe the developments of the database since its i...

  • Systematic Review
  • Open Access
4 Citations
7,531 Views
12 Pages

A Systematic Review on Add-On Psychotherapy in Schizophrenia Spectrum Disorders

  • Martina Nicole Modesti,
  • Jan Francesco Arena,
  • Natalia Palermo and
  • Antonio Del Casale

28 January 2023

Schizophrenia spectrum disorders represent a varied class of mental illnesses characterised by psychosis. In addition to negative and positive symptoms, a significant lack of insight often hinders the therapeutic process. We performed an overview of...

  • Article
  • Open Access
7 Citations
3,444 Views
24 Pages

Cognitive Radio with Machine Learning to Increase Spectral Efficiency in Indoor Applications on the 2.5 GHz Band

  • Marilson Duarte Soares,
  • Diego Passos and
  • Pedro Vladimir Gonzalez Castellanos

19 May 2023

Due to the propagation characteristics in the 2.5 GHz band, the signal is significantly degraded by building entry loss (BEL), making coverage in indoor environments in some cases non-existent. Signal degradation inside buildings is a challenge for p...

  • Article
  • Open Access
2 Citations
870 Views
16 Pages

13 April 2025

This study focuses on breast imaging. A spectral approach based on the Fourier diffraction theorem is combined with a pair of U-NETs to perform real-time quantitative human breast imaging. The U-NET pair is trained based on the input of an induced cu...

  • Review
  • Open Access
11 Citations
3,966 Views
11 Pages

The Trends of Complicated Acute Colonic Diverticulitis—A Systematic Review of the National Administrative Databases

  • Roberto Cirocchi,
  • Georgi Popivanov,
  • Alessia Corsi,
  • Antonio Amato,
  • Riccardo Nascimbeni,
  • Rosario Cuomo,
  • Bruno Annibale,
  • Marina Konaktchieva and
  • Gian Andrea Binda

16 November 2019

Background and Objectives: The diverticular disease includes a broad spectrum of different “clinical situations” from diverticulosis to acute diverticulitis (AD), with a full spectrum of severity ranging from self-limiting infection to ab...

  • Systematic Review
  • Open Access
1,493 Views
18 Pages

20 October 2025

Background/Objectives: Understanding the patterns of inappropriate antibiotic prescribing is crucial to design antimicrobial stewardship interventions. This systematic review evaluated the prevalence and types of inappropriate antibiotic prescribing...

  • Article
  • Open Access
22 Citations
4,765 Views
11 Pages

Identification of Mucorales by Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry

  • Patrick Schwarz,
  • Houssem Guedouar,
  • Farah Laouiti,
  • Frédéric Grenouillet and
  • Eric Dannaoui

2 July 2019

More than 20 different species of Mucorales can be responsible for human mucormycosis. Accurate identification to the species level is important. The morphological identification of Mucorales is not reliable, and the currently recommended identificat...

  • Brief Report
  • Open Access
2 Citations
2,326 Views
8 Pages

Rapid Identification of Clinically Relevant Candida spp. by I-dOne Software Using Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) Spectroscopy

  • Iacopo Franconi,
  • Roberta Fais,
  • Cesira Giordano,
  • Benedetta Tuvo,
  • Chiaramaria Stani,
  • Arianna Tavanti,
  • Simona Barnini and
  • Antonella Lupetti

7 January 2025

Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy is a spectrum-based technique that quantifies the absorption of infrared light by molecules present in the microbial cell. The aim of the present study was to evaluate th...

  • Review
  • Open Access
1 Citations
6,911 Views
12 Pages

Closing the Gap in Proteomic Identification of Histoplasma capsulatum: A Case Report and Review of Literature

  • Terenzio Cosio,
  • Roberta Gaziano,
  • Carla Fontana,
  • Enrico Salvatore Pistoia,
  • Rosalba Petruccelli,
  • Marco Favaro,
  • Francesca Pica,
  • Silvia Minelli,
  • Maria Cristina Bossa and
  • Cartesio D’Agostini
  • + 3 authors

15 October 2023

Histoplasmosis is a globally distributed systemic infection caused by the dimorphic fungus Histoplasma capsulatum (H. capsulatum). This fungus can cause a wide spectrum of clinical manifestations, and the diagnosis of progressive disseminated histopl...

  • Article
  • Open Access
9 Citations
3,554 Views
18 Pages

Multispectral Facial Recognition in the Wild

  • Pedro Martins,
  • José Silvestre Silva and
  • Alexandre Bernardino

1 June 2022

This work proposes a multi-spectral face recognition system in an uncontrolled environment, aiming to identify or authenticate identities (people) through their facial images. Face recognition systems in uncontrolled environments have shown impressiv...

  • Review
  • Open Access
14 Citations
8,859 Views
14 Pages

Application of Information—Theoretic Concepts in Chemoinformatics

  • Martin Vogt,
  • Anne Mai Wassermann and
  • Jürgen Bajorath

20 October 2010

The use of computational methodologies for chemical database mining and molecular similarity searching or structure-activity relationship analysis has become an integral part of modern chemical and pharmaceutical research. These types of computationa...

  • Article
  • Open Access
7 Citations
4,121 Views
13 Pages

Denovo-GCN: De Novo Peptide Sequencing by Graph Convolutional Neural Networks

  • Ruitao Wu,
  • Xiang Zhang,
  • Runtao Wang and
  • Haipeng Wang

5 April 2023

The de novo peptide-sequencing method can be used to directly infer the peptide sequence from a tandem mass spectrum. It has the advantage of not relying on protein databases and plays a key role in the determination of the protein sequences of unkno...

  • Review
  • Open Access
5 Citations
11,075 Views
24 Pages

Nutritional Factors and Therapeutic Interventions in Autism Spectrum Disorder: A Narrative Review

  • Carlos A. Nogueira-de-Almeida,
  • Liubiana A. de Araújo,
  • Fábio da V. Ued,
  • Andrea A. Contini,
  • Maria E. Nogueira-de-Almeida,
  • Edson Z. Martinez,
  • Ivan S. Ferraz,
  • Luiz A. Del Ciampo,
  • Carla C. J. Nogueira-de-Almeida and
  • Mauro Fisberg

8 February 2025

Objective: To explore recent findings on how nutritional, gastrointestinal, social, and epigenetic factors interact in autism spectrum disorder, highlighting their implications for clinical management and intervention strategies that could improve de...

  • Review
  • Open Access
47 Citations
10,877 Views
11 Pages

Linking a Population Biobank with National Health Registries—The Estonian Experience

  • Liis Leitsalu,
  • Helene Alavere,
  • Mari-Liis Tammesoo,
  • Erkki Leego and
  • Andres Metspalu

16 April 2015

The Estonian population-based biobank, with 52,000 participants’ genetic and health data, is the largest epidemiological cohort in the Baltic region. Participants were recruited through a network of medical professionals throughout Estonia (populatio...

  • Article
  • Open Access
54 Citations
21,041 Views
32 Pages

20 March 2015

Recently, autism-related research has focused on the identification of various genes and disturbed pathways causing the genetically heterogeneous group of autism spectrum disorders (ASD). The list of autism-related genes has significantly increased d...

  • Review
  • Open Access
1 Citations
5,267 Views
36 Pages

The Immune/Inflammatory Underpinnings of Neurodevelopmental Disorders and Pediatric Acute-Onset Neuropsychiatric Syndrome: A Scoping Review

  • Antonella Gagliano,
  • Francesca Cucinotta,
  • Ivana Giunta,
  • Irene Di Modica,
  • Carmela De Domenico,
  • Carola Costanza,
  • Eva Germanò and
  • Jennifer Frankovich

11 August 2025

Among the shared pathogenetic mechanisms leading to neurodevelopmental disorders (NDDs), a dysregulated inflammatory response has been described as a convergent pathway in NDDs. This scoping review was registered in the OSF database. It was conducted...

  • Article
  • Open Access
2 Citations
1,861 Views
14 Pages

MLTSP: New 3D Framework, Based on the Multilayer Tensor Spectrum Pyramid

  • Roumiana A. Kountcheva,
  • Rumen P. Mironov and
  • Roumen K. Kountchev

12 September 2022

A tensor representation structure based on the multilayer tensor spectrum pyramid (MLTSP) is introduced in this work. The structure is “truncated”, i.e., part of the high-frequency spectrum coefficients is cut-off, and on the retained low-frequency c...

  • Article
  • Open Access
1 Citations
2,650 Views
17 Pages

Spectral Calibration of the Spectrometer on Board the Colombian FACSAT-2 Satellite Mission

  • Lorena Paola Cárdenas Espinosa,
  • Enrique Mejía-Ospino,
  • Luis Guarnizo,
  • Jorge Prada Mejia,
  • Erick Enrique Gutiérrez,
  • Jorge Paiba Alzate,
  • Iván Plata,
  • Efraín Rodríguez Rubio,
  • Alejandro Carvajal and
  • Paola Zarate

1 October 2024

This paper presents the results of the integration, commissioning, and in-orbit calibration of the ARGUS 2000 SWIR wavelength spectrometer onboard the Colombian FACSAT-2 satellite, Colombia’s first satellite used for the measurement of greenhou...

  • Article
  • Open Access
12 Citations
3,740 Views
16 Pages

Microbiome Compositions and Resistome Levels after Antibiotic Treatment of Critically Ill Patients: An Observational Cohort Study

  • Karen Leth Nielsen,
  • Markus Harboe Olsen,
  • Albert Pallejá,
  • Søren Røddik Ebdrup,
  • Nikolaj Sørensen,
  • Oksana Lukjancenko,
  • Rasmus L. Marvig,
  • Kirsten Møller,
  • Niels Frimodt-Møller and
  • Frederik Boëtius Hertz

Hospitalization and treatment with antibiotics increase the risk of acquiring multidrug-resistant bacteria due to antibiotic-mediated changes in patient microbiota. This study aimed to investigate how broad- and narrow-spectrum antibiotics affect the...

  • Article
  • Open Access
35 Citations
5,638 Views
15 Pages

23 March 2020

Image quality assessment (IQA) is an important element of a broad spectrum of applications ranging from automatic video streaming to display technology. Furthermore, the measurement of image quality requires a balanced investigation of image content...

  • Review
  • Open Access
230 Views
15 Pages

21 January 2026

The German IQVIA Disease Analyzer (DA) database has become an increasingly important source of real-world evidence for psychiatric research. Over the past decade, and particularly since 2020, DA-based studies have addressed a broad spectrum of psychi...

  • Review
  • Open Access
1 Citations
2,616 Views
11 Pages

Prediction of Communicative Disorders Linked to Autistic Spectrum Disorder Based on Early Psychomotor Analysis

  • Darío Rincón-Rufo,
  • Violeta Vera-Pérez,
  • Alicia Cuesta-Gómez and
  • María Carratalá-Tejada

11 March 2022

This systematic review evaluated psychomotor differences between children with and without siblings who have autism spectrum disorder (ASD), as well as the most reliable psychomotor skills that can help predict ASD and its associated language disorde...

  • Article
  • Open Access
3 Citations
4,407 Views
12 Pages

An Analysis of Protein Crystals Grown under Microgravity Conditions

  • Keegan Jackson,
  • Rebecca Hoff,
  • Hannah Wright,
  • Ashley Wilkinson,
  • Frances Brewer,
  • Amari Williams,
  • Ben Whiteside,
  • Mark R. Macbeth and
  • Anne M. Wilson

16 July 2024

Microgravity has been shown to be an excellent tool for protein crystal formation. A retrospective analysis of all publicly available crystallization data, including many that have not yet been published, clearly demonstrates the value of the microgr...

  • Article
  • Open Access
9 Citations
2,606 Views
13 Pages

26 July 2024

This study involved the preparation of natural rubber-based composites incorporating varying proportions of heavy metals and rare earth oxides (Sm2O3, Ta2O5, and Bi2O3). The investigation analyzed several parameters of the samples, including mass att...

  • Article
  • Open Access
9 Citations
4,150 Views
18 Pages

27 October 2022

Autism spectrum disorder is a common, heterogeneous neurodevelopmental disorder lacking targeted treatments. Additional features include restricted, repetitive patterns of behaviors and differences in sensory processing. We hypothesized that detailed...

  • Review
  • Open Access
438 Views
10 Pages

19 December 2025

Background/Objectives: Fetal growth restriction (FGR), formerly known as intrauterine growth retardation (IUGR), is defined as a fetus’ failure to reach its genetically predetermined growth potential. FGR has also been implicated in the develop...

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