Results 81 to 90 of about 28,388 (235)

Examining the Psychometric Properties of the Ultra‐Short Version of the Oral Health Impact Profile in Australia

open access: yesCommunity Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objectives The Oral Health Impact Profile (OHIP) is the most widely used instrument to measure the subjective impact of oral conditions. This study reports the shortening and psychometric evaluation of an ultra‐short version (OHIP‐7A) from the OHIP‐14 in a large national Australian population.
Brandan Khor   +6 more
wiley   +1 more source

Symmetry breaking on density in escaping ants: experiment and alarm pheromone model.

open access: yesPLoS ONE, 2014
The symmetry breaking observed in nature is fascinating. This symmetry breaking is observed in both human crowds and ant colonies. In such cases, when escaping from a closed space with two symmetrically located exits, one exit is used more often than the
Geng Li   +6 more
doaj   +1 more source

Economic and Biological Evaluation of Pheromone Trap Types for Western Bean Cutworm, Striacosta albicosta, Monitoring in Dry Edible Bean Fields

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Pheromone trap use for monitoring Striacosta albicosta in dry edible beans was evaluated across multiple trap designs, lure replacement intervals, and insecticide timings. Bucket traps captured the most moths, yet trap counts poorly predicted crop damage.
Jeffrey D. Cluever   +3 more
wiley   +1 more source

Effect of Copulins on Rating of Female Attractiveness, Mate-Guarding, and Self-Perceived Sexual Desirability

open access: yesEvolutionary Psychology, 2016
Olfaction and chemical signaling play an important role in the mating behaviors of many taxa, yet there is minimal empirical research on human putative pheromones. A mixture of five volatile fatty acids secreted vaginally, identified and named “copulins,”
Megan N. Williams, Amy Jacobson
doaj   +1 more source

Flexible protein folding by ant colony optimization [PDF]

open access: yes, 2008
Protein structure prediction is one of the most challenging topics in bioinformatics. As the protein structure is found to be closely related to its functions, predicting the folding structure of a protein to judge its functions is meaningful to the ...
Hu, X., Li, Y., Zhang, J.
core   +1 more source

The scented brain: pheromonal responses in humans.

open access: yesNeuron, 2001
Using PET, Savic et al., in this issue of Neuron, found a sexually dimorphic neural response to two putative human pheromones. The specific regions activated combined with the pronounced sex difference depict a pheromonal-type brain response in humans. Here, we preview this finding and suggest that human pheromones exist.
Sobel, Noam, Brown, Windy M.
openaire   +2 more sources

Pheromones in Human Urine: A Study

open access: yesAdvances in Sexual Medicine, 2013
The present study was conducted to understand if pheromone or any similar substance was present in human semen and whether it could be recognized by smell. One hundred and fifty two subjects of either sex participated in this study. The study lasted for one month. They were to identify urine by smell. Daily first urine sample was submitted by five male
K. P. Skandhan   +5 more
openaire   +2 more sources

Diet breadth shapes gut microbiota in the invasive hornet Vespa velutina

open access: yesInsect Conservation and Diversity, EarlyView.
Dietary and microbial profiles of V. velutina larvae are dominated by Apidae and Firmicutes, respectively. DNA metabarcoding of larval meconium and gut samples reveals a significant positive correlation between prey richness and bacterial diversity in the invasive hornet V. velutina. Multiple significant correlations exist between dietary and microbial
Cayetano Herrera   +3 more
wiley   +1 more source

Modelling of self-driven particles: foraging ants and pedestrians [PDF]

open access: yes, 2006
Models for the behavior of ants and pedestrians are studied in an unified way in this paper. Each ant follows pheromone put by preceding ants, hence creating a trail on the ground, while pedestrians also try to follow others in a crowd for efficient and ...
Chowdhury, Debashish   +4 more
core   +2 more sources

Erythrocyte ‘Feierzeit’ reaction: Novel filamentous and vesicular response to n‐butyl acetate

open access: yesJournal of Microscopy, EarlyView.
Abstract Human erythrocytes (red blood cells; RBCs) undergo spontaneous disassembly after several hours of exposure to n‐butyl acetate (nBA). Images of the morphological changes were captured in time‐lapse sequences using differential interference contrast (DIC) light microscopy.
Philip W. Kuchel
wiley   +1 more source

Home - About - Disclaimer - Privacy