Results 1 to 10 of about 123,498 (227)

Cryptic Diversity in Colombian Edible Leaf-Cutting Ants (Hymenoptera: Formicidae)

Insects, 2018
Leaf-cutting ants are often considered agricultural pests, but they can also benefit local people and serve important roles in ecosystems. Throughout their distribution, winged reproductive queens of leaf-cutting ants in the genus Atta Fabricius, 1804 ...
Pepijn W. Kooij, Bryn M. Dentinger, David A. Donoso, Jonathan Z. Shik, Ester Gaya   +4 more
doaj   +1 more source

Phase Modulation of Retro-Reflected Radar Echo Signal Using a Microstrip Van-Atta Array

IEEE Access, 2019
Van-atta array is able to retro-reflect the incident signal back to the income direction and, thus, it can maintain a relatively larger radar cross-section (RCS) in a large range of incidence angles.
Kunpeng Song, Dejun Feng, Junjie Wang, Qianpeng Xie, Lei Liu   +4 more
doaj   +1 more source

The prognostic outcome of ‘type 2 diabetes mellitus and breast cancer’ association pivots on hypoxia-hyperglycemia axis

Cancer Cell International, 2021
Type 2 diabetes mellitus and breast cancer are complex, chronic, heterogeneous, and multi-factorial diseases; with common risk factors including but not limited to diet, obesity, and age. They also share mutually inclusive phenotypic features such as the
Ilhaam Ayaz Durrani, Attya Bhatti, Peter John   +2 more
doaj   +1 more source

Genome-wide analysis of heavy metal ATPases (HMAs) in Poaceae species and their potential role against copper stress in Triticum aestivum

Scientific Reports, 2023
Plants require copper for normal growth and development and have evolved an efficient system for copper management based on transport proteins such as P1B-ATPases, also known as heavy metal ATPases (HMAs). Here, we report HMAs in eleven different Poaceae
Tuba Sharf Batool, Roohi Aslam, Alvina Gul, Rehan Zafar Paracha, Mahnoor Ilyas, Kathryn De Abreu, Faiza Munir, Rabia Amir, Lorraine E. Williams   +8 more
doaj   +1 more source

Chimeric vaccine designs against Acinetobacter baumannii using pan genome and reverse vaccinology approaches

Scientific Reports, 2021
Acinetobacter baumannii (A. baumannii), an opportunistic, gram-negative pathogen, has evoked the interest of the medical community throughout the world because of its ability to cause nosocomial infections, majorly infecting those in intensive care units.
Fatima Shahid, Tahreem Zaheer, Shifa Tariq Ashraf, Muhammad Shehroz, Farha Anwer, Anam Naz, Amjad Ali   +6 more
doaj   +1 more source

[PROVISIONAL] Mitochondrial genomes of genus Atta (Formicidae: Myrmicinae) reveal high gene organization and giant intergenic spacers

Genetics and Molecular Biology
The ants of the genus Atta are considered an important pest to agriculture in Latin América, although, Atta species are important contributors to ecosystem functions in the various habitats in which they occur. Next-generation sequencing product millions
Josefa T. V. Barbosa, Marcílio S. Barbosa, Suzyane Morais, Antônio E. G. Santana, Cicero Almeida   +4 more
doaj   +1 more source

Petri Net-Based Model of Helicobacter pylori Mediated Disruption of Tight Junction Proteins in Stomach Lining during Gastric Carcinoma

Frontiers in Microbiology, 2017
Tight junctions help prevent the passage of digestive enzymes and microorganisms through the space between adjacent epithelial cells lining. However, Helicobacter pylori encoded virulence factors negatively regulate these tight junctions and contribute ...
Anam Naz, Ayesha Obaid, Faryal M. Awan, Aqsa Ikram, Jamil Ahmad, Amjad Ali   +5 more
doaj   +1 more source

Fungos Filamentosos Associados às Espécies Atta sexdens (Linnaeus) e Atta laevigata (F. Smith) (Hymenoptera: Formicidae)

EntomoBrasilis, 2016
Resumo. As formigas-cortadeiras, Atta e Acromyrmex, são consideradas as principais pragas no sistema agroflorestal da Região Neotropical. Isso porque cortam material vegetal que servirá de alimento ao fungo simbionte que elas cultivam.
Aline Silvestre Pereira Dornelas, Renato de Almeida Sarmento, Gil Rodrigues dos Santos, Mariela Otoni Nascimento, Danival José de Souza   +4 more
doaj   +1 more source

A 2-D Fully Polarized Van Atta Array Based on Wide-Beam Tri-Polarized Antennas

Micromachines
This paper proposes a 2-D fully polarized Van Atta array, which consists of four tri-polarized antenna elements. The tri-polarized antenna element comprises a monopole antenna and a low-profile microstrip antenna that widens the beam by folding four ...
Jicheng Pan, Lei Chen, Shuangdi Zhao, Tianling Zhang   +3 more
doaj   +1 more source

Determinação do fator de conversão em colônias de Atta sexdens rubropilosa (Hymenoptera: Formicidae) e sua relação com a qualidade do material vegetal cortado Determination of the conversion factor in colonies of Atta sexdens rubropilosa (Hymenoptera: Formicidae) and its relationship with the quality of harvested leaf substrate

Revista Árvore, 2007
As formigas cortadeiras (Atta e Acromyrmex) são consideradas importantes pragas na agricultura e silvicultura, mas pouco se sabe sobre os reais danos dessas espécies.
Leandro Sousa-Sou, Marcelo Braga Bueno Guerra, José Henrique Schoereder, Carlos Ernesto Gonçalves Reynaud Schaefer, Washington Luis da Silva   +4 more
doaj   +1 more source