Skip Content
You are currently on the new version of our website. Access the old version .

10 Results Found

  • Article
  • Open Access
1,793 Views
17 Pages

12 June 2025

Geomagnetic storms induce ionospheric disturbances, significantly affecting Global Navigation Satellite System (GNSS) positioning accuracy. This study investigates how geomagnetic storm-induced ionospheric irregularities influence GNSS Precise Point...

  • Article
  • Open Access
1 Citations
1,574 Views
23 Pages

Scintillations in Southern Europe During the Geomagnetic Storm of June 2015

  • Anna Morozova,
  • Luca Spogli,
  • Teresa Barata,
  • Rayan Imam,
  • Emanuele Pica,
  • Juan Andrés Cahuasquí,
  • Mohammed Mainul Hoque,
  • Norbert Jakowski and
  • Daniela Estaço

5 February 2025

The sensitivity of Global Navigation Satellite System (GNSS) receivers to ionospheric disturbances and their constant growth are nowadays resulting in an increased concern of GNSS users about the impacts of ionospheric disturbances at mid-latitudes....

  • Article
  • Open Access
1 Citations
1,396 Views
19 Pages

6 September 2025

The Hunga-Tonga volcanic eruption on 15 January 2022, produced significant atmospheric and ionospheric disturbances that may degrade global navigation satellite system (GNSS) and precise point positioning (PPP) accuracy. Using data from the GEONET GN...

  • Article
  • Open Access
14 Citations
2,685 Views
12 Pages

Genome Variability of Infectious Bronchitis Virus in Mexico: High Lineage Diversity and Recurrent Recombination

  • Ana Marandino,
  • Lizbeth Mendoza-González,
  • Yanina Panzera,
  • Gonzalo Tomás,
  • Joaquín Williman,
  • Claudia Techera,
  • Amanda Gayosso-Vázquez,
  • Vianey Ramírez-Andoney,
  • Rogelio Alonso-Morales and
  • Ruben Pérez
  • + 1 author

20 July 2023

The avian infectious bronchitis virus (IBV) is a coronavirus that mutates frequently, leading to a contagious and acute disease that results in economic losses to the global poultry industry. Due to its genetic and serological diversity, IBV poses a...

  • Review
  • Open Access
3 Citations
4,113 Views
14 Pages

21 March 2023

Norovirus is the most common cause of foodborne gastroenteritis, affecting millions of people worldwide annually. Among the ten genotypes (GI–GX) of norovirus, only GI, GII, GIV, GVIII, and GIX infect humans. Some genotypes reportedly exhibit p...

  • Article
  • Open Access
1,241 Views
14 Pages

Conjugated Polymer Nanoparticles and Thin Films of Defect-Free Cyclic P3HT: Effects of Polymer Topology on the Nanostructure

  • Tomohisa Watanabe,
  • Masatoshi Maeki,
  • Manabu Tokeshi,
  • Tianle Gao,
  • Feng Li,
  • Takuya Isono,
  • Kenji Tajima,
  • Toshifumi Satoh,
  • Shin-ichiro Sato and
  • Takuya Yamamoto

Conjugated polymer nanoparticles (CP NPs) attract attention as nanoscale materials used for a variety of applications. In relation to this, the internal structure of CP NPs is an important factor for their properties, and numerous investigations have...

  • Article
  • Open Access
19 Citations
4,313 Views
16 Pages

Virological and Epidemiological Features of Norovirus Infections in Brazil, 2017–2018

  • Sylvia Kahwage Sarmento,
  • Juliana da Silva Ribeiro de Andrade,
  • Marize Pereira Miagostovich and
  • Tulio Machado Fumian

30 August 2021

Noroviruses are considered an important cause of acute gastroenteritis (AGE) across all age groups. Here, we investigated the incidence of norovirus, genotypes circulation, and norovirus shedding in AGE stool samples from outpatients in Brazil. Durin...

  • Review
  • Open Access
3 Citations
3,050 Views
14 Pages

Emergence and Dissemination of the Avian Infectious Bronchitis Virus Lineages in Poultry Farms in South America

  • Vagner Ricardo Lunge,
  • Diéssy Kipper,
  • André Felipe Streck,
  • André Salvador Kazantzi Fonseca and
  • Nilo Ikuta

Infectious bronchitis virus (IBV) is a chicken pathogen present in commercial poultry farms worldwide. It is classified within the species Avian coronavirus, genus Gammacoronavirus. As with other members of the family Coronaviridae, it has a single p...

  • Article
  • Open Access
18 Citations
5,024 Views
20 Pages

Norovirus Epidemiology and Genotype Circulation during the COVID-19 Pandemic in Brazil, 2019–2022

  • Sylvia Kahwage Sarmento,
  • Juliana da Silva Ribeiro de Andrade,
  • Fábio Correia Malta,
  • Alexandre Madi Fialho,
  • Mateus de Souza Mello,
  • Fernanda Marcicano Burlandy and
  • Tulio Machado Fumian

19 December 2023

Norovirus stands out as a leading cause of acute gastroenteritis (AGE) worldwide, affecting all age groups. In the present study, we investigated fecal samples from medically attended AGE patients received from nine Brazilian states, from 2019 to 202...

  • Article
  • Open Access
156 Views
14 Pages

Structural Insights into the Interaction Between a Core-Fucosylated Foodborne Hexasaccharide (H2N2F2) and Human Norovirus P Proteins

  • Zilei Zhang,
  • Yuchen Wang,
  • Jiaqi Xu,
  • Fei Liu,
  • Shumin Li,
  • Justin Troy Cox,
  • Liang Xue and
  • Danlei Liu

20 January 2026

Background: Human noroviruses are the leading cause of foodborne gastroenteritis worldwide. Accumulating evidence suggests that food matrices containing fucosylated or histo-blood group antigen (HBGA)-like glycans may facilitate viral attachment and...