Results 11 to 20 of about 3,051 (199)

Sexual castes of Trachymyrmex fuscus (Formicidae: Attini) performing worker tasks [PDF]

Ciência Rural, 2015
:The main of this research was to report an atypical foraging behavior in a colony of Trachymyrmex fuscus, situated in "Cerrado" (savanna ecoregion of Goiás, Brazil). The colony foraging activity was performed only by sexual caste.
Márcio da Silva Araújo, João Paulo Ribeiro Oliveira, Danival José de Souza, Marco Antônio Oliveira, Flávio Gonçalves de Jesus   +4 more
doaj   +4 more sources

Role of fetal head-circumference-to-maternal-height ratio in predicting Cesarean section for labor dystocia: prospective multicenter study. [PDF]

Ultrasound Obstet Gynecol, 2023
ABSTRACT Objective To evaluate the relationship between the fetal head‐circumference‐to‐maternal‐height (HC/MH) ratio measured shortly before delivery and the occurrence of Cesarean section (CS) for labor dystocia. Methods This was a multicenter prospective cohort study involving four tertiary maternity hospitals.
Dall'Asta A, Ramirez Zegarra R, Corno E, Mappa I, Lu JLA, Di Pasquo E, Morganelli G, Abou-Dakn M, Germano C, Attini R, Masturzo B, Rizzo G, Ghi T.   +12 more
europepmc   +2 more sources

Consecutive chorioangiomas in the same pregnancy: A clinical case and review of literature. [PDF]

Health Sci Rep, 2022
Abstract Background and Aims Aetiopathogenesis of chorioangioma is already unknown. Among the risk factors, hypoxia, environmental and genetic factors are believed to induce the overexpression of angiogenic cytokines promoting vascular proliferation.
Germano C, Pilloni E, Rolfo A, Botta G, Parpinel G, Cortese P, Cotrino I, Attini R, Revelli A, Masturzo B.   +9 more
europepmc   +2 more sources

An Old World leaf-cutting, fungus-growing ant: A case of convergent evolution. [PDF]

Ecol Evol, 2023
Crematogaster clariventris, a myrmicine ant from the African subgenus Atopogyne, is a defoliator that uses vegetal material to grow fungi as do higher New World leaf‐cutting Attina, illustrating a case of convergent evolution. However, C. clariventris grows fungal mycelia to reinforce the carton of the nests rather than cultivating it for food ...
Dejean A, Naskrecki P, Faucher C, Azémar F, Tindo M, Manzi S, Gryta H.   +6 more
europepmc   +2 more sources

Short-term morbidity and types of intrapartum hypoxia in the newborn with metabolic acidaemia: a retrospective cohort study. [PDF]

BJOG, 2022
Abstract Objectives To assess labour characteristics in relation to the occurrence of Composite Adverse neonatal Outcome (CAO) within a cohort of fetuses with metabolic acidaemia. Design Retrospective cohort study. Setting Three Italian tertiary maternity units. Population 431 neonates born with acidaemia ≥36 weeks.
di Pasquo E, Commare A, Masturzo B, Paolucci S, Cromi A, Montersino B, Germano CM, Attini R, Perrone S, Pisani F, Dall'Asta A, Fieni S, Frusca T, Ghi T.   +13 more
europepmc   +2 more sources

Embryogenesis in Myrmicine Ants Combines Features of Short Germ-Band Development With a Progressive Mode of Segmentation. [PDF]

J Exp Zool B Mol Dev Evol
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Fang CC, Rajakumar A, Kenny A, Mueller UG, Abouheif E, Stein D.   +5 more
europepmc   +2 more sources

Correction to ‘Resumption of Peritoneal Dialysis Postpartum Following Pregnancy in an ESRD Patient: A Case Report and Literature Review’ [PDF]

Clin Case Rep
Clinical Case Reports, Volume 14, Issue 2, February 2026.
europepmc   +2 more sources

Mutualistic interactions between ants and fungi: A review

Ecology and Evolution, Volume 13, Issue 8, August 2023., 2023
We review the mutualistic interactions between ants and fungi. Neotropical myrmicine Attina cultivate Basidiomycota for food, the same being true for certain “plant‐ants” associated with myrmecophytes that also feed on Ascomycota fungi. Otherwise, these Ascomycota have antibacterial properties.
Alain Dejean, Frédéric Azémar, Piotr Naskrecki, Maurice Tindo, Vivien Rossi, Christian Faucher, Hervé Gryta   +6 more
wiley   +1 more source

Microbial communities of the ant Formica exsecta and its nest material

European Journal of Soil Science, Volume 74, Issue 3, May–June 2023., 2023
This study compares the bacterial and fungal microbiomes of worker ants of Formica exsecta, and the nest material associated with the ants. We found that the ants maintain a microbiome, distinct from the surrounding nest material, and that this microbiome is consistent across colonies and time.
Stafva Lindström, Sari S. Timonen, Liselotte Sundström   +2 more
wiley   +1 more source

Gram-Negative Bacteria Across Spatial Scales: A Meta-Analysis of Ant-Associated Bacterial Communities Under Distinct Environmental Conditions. [PDF]

Ecol Evol
Using a meta‐analysis, we estimated the proportion of Gram‐negative (GN) bacteria in ant microbiota across different environments, focusing on habitat and climate influences. Our findings show that ants from temperate regions and arboreal habitats harbor higher proportions of GN bacteria, potentially offering adaptive advantages in variable ...
Bitar MR, Azevedo-Silva M, Oliveira PS, Romero GQ, Ribeiro SP.   +4 more
europepmc   +2 more sources