Sentences with phrase «pheromones which»

The dachshund was producing aberrant pheromones which triggered mating behaviour in the cat.

Urine contains pheromones which are chemicals meant to deliver different messages purposely left for a recipient to interpret.

Some breeders and dog trainers recommend using DAP diffusers, special plug - ins that release the synthetic version of dog appeasing pheromones which are known for calming dogs.

Wagging also spreads pheromones which are hormones produced in glands near the anus of the dog.

The former is a synthetic feline pheromone which cats find hugely reassuring, and can make a stressed kitten feel more relaxed.

A plug - in called Feliway (also marketed as Comfort Zone) is a synthetic pheromone which mimics the «happy hormone» which cats produce in glands around their mouth.

Not exact matches

If you want to search for love via this scientific route, start by attending a pheromone party, a singles event in which each guest brings a well slept - in T - shirt, ripe with pheromones.

An important and foundational aspect of human communication is the scent of those hormones which foster affiliation across the animal kingdom, which are called pheromones.

The research shows that the portion of the brain that helps regulate sexuality — the hypothalamus — reacted the exact same way in straight women and gay men when exposed to male pheromones, which are chemicals designed to provoke a behavior, such as sexual arousal.

After we caught up on the new and old men in our lives, Cara, the only suck - up to bring an article this week, began a discussion on the fragrances that remind men of pumpkin pie — based on her article from Cosmopolitan (inherited, NOT purchased), which contested that a combination of pie and lavender is in fact the key to pheromone attraction.

Men's bodies are instinctively programmed to respond to their partners» pheromones, which are steroid hormones made in our skin that emit barely detectable odours.

Like ants and honeybees, beetles communicate via scented chemicals called pheromones, one of which warns the insects to stay away from particular trees.

The flake, which releases the pheromone along the edges, can be dispersed by helicopter over tens of acres at a time.

And this ultimately supports the hypothesis that fertility signals, which eventually evolved to become queen pheromones that regulate reproduction, have remained the same since the last common solitary ancestor of all social insects, which lived approximately 145 million years ago,» says Wenseleers.

They discovered that pheromones secreted by the male mouse activate these neurons which, in turn, transmit this signal to another population of neurons (gonadotropin - releasing hormone neurons) to drive attraction to the opposite sex.

«These have very similar pockets on their front wings, which they use to spray pheromones into the air in order to attract a mate,» reports Stebner.

«There is likely a biological underpinning to kissing, as it can often involve exchange of pheromones and saliva, and also pathogens — which might be particularly dangerous in societies without oral hygiene, where kissing may lead to spread of respiratory or other illness,» he said.

That suggests they all inherited the pheromone from their common ancestor, which lived in the early Cretaceous period.

The macroglomerulus (MG) in the cockroach, which receives convergent axonal input from pheromone - responsive neurons, is subdivided into layers according to their spatial origins in the antenna.

So, what happens that the researchers were looking at, this moment, when the bees suddenly lost weight, and they found that it is dictated by the queen bee's pheromones, which trigger this insulin mechanism in the bees» brains that causes them to lose weight.

One way the social wasps have found to increase the efficiency of their defence is through chemical signals, called alarm pheromones, which are used to rouse the colony to action and mark intruders for attack.

Other Discover assignments included articles on savants, artificial sight, bee research (during which Smolka endured multiple stings), and finally, in the July 2003 issue last year, an article on human pheromones.

The team found evidence that indeed, workers exposed to pheromones tag their DNA with methylation differently, which might suppress queenly characteristics in the workers.

A similar discovery in fruit flies, reported in an earlier independent study, which shows that a particular sex pheromone enhances female sexual behaviors and male aggression via separate neural circuits between the sexes, suggests that a sexually distinct circuit may be a universal strategy for converting male pheromone information into appropriate behavioral output.

This one - GPCR - per - neuron pattern also exists in the vomeronasal olfactory system, which is specialized for recognizing pheromones, suggesting a common and general logic for processing smell.

Unlike other pheromones, which tend to be composed of a complex web of substances, ESP1 is a single purified chemical that is detected by a sole corresponding receptor, making it comparatively easy to track.

According to Fotini Koutroumpa, lead author of the study and researcher at the UvA's Institute for Biodiversity and Ecosystem Dynamics (IBED), the results point to future research on the tiny but complex moth brain, which will shed light on how the diverse pheromone systems of the thousands of moth species has changed throughout evolution.

The experiment, Dulac adds, implies that the neuronal circuits for «male» behavior exist in the brains of female mice and that the animals» VNO, by sensing pheromones, controls which sexual behavior repertoire is expressed.

Furthermore, the same pheromone - specific neuron types which activate the olfactory receptors Or47b or Or88a respond to methyl laurate.

Indeed, it would be interesting to model the deposition of pheromones more directly: the analogy with quantum mechanics is quite strong and techniques similar to Feynman path integrals — which superpose contributions from all possible paths — might be useful.

«From our perspective as chemists, we were almost disappointed that a molecule which conveys something important as sex has such a simple structure,» says Aleš Svatoš, who performed the chemical analyses to identify the pheromone.

This visualization is based on the foraging behavior of the seed harvesting ant P. barbatus, a species which does not use pheromone trails for finding food.

Pheromones are detected by the so - called vomeronasal organ, which sits in the nasal cavity and sets off a cascade of nerve signals that ends in the accessory olfactory bulb, the organ that processes pPheromones are detected by the so - called vomeronasal organ, which sits in the nasal cavity and sets off a cascade of nerve signals that ends in the accessory olfactory bulb, the organ that processes pheromonespheromones.

To handle such conditions, Ruud Schoonderwoerd and Janet Bruten, both then at Hewlett - Packard's research laboratories in Bristol, England, and Owen Holland, then at the University of the West of England, invented a routing technique in which antlike agents deposit bits of information, or «virtual pheromone,» at the network nodes to reinforce paths through uncongested areas.

It had long been known that the ant «highways» often seen in nature (and in people's kitchens) are laid down by individual ants depositing pheromone, a chemical attractant, which increases the probability that other ants will follow the same path to the food source.

Then they took a hefty whiff of either yeast (a control) or androstadienone, a suspected male pheromone present in sweat (which was also mixed with yeast to mask any perceptible odor), and played the game again.

In essence, the question is which came first, a new species or its sex pheromone?

When the scientists analyzed the N. vitripennis male sex pheromone, they found it contained two important chemicals, which they call RS and RR.

In a 2017 study, they discovered two pheromones, called oleic acid and beta - ocimene, which are only released by dead bee larvae.

These hairs contain specialized neurons, nerve cells that express pheromone receptors which are activated when they bind to individual pheromone components.

The scientists had already verified in previous studies that the «persistence» of ants, or rather, their tendency not to change their direction while there are no obstacles or external effects, together with the «reinforcement» occurring in areas which they have already visited (thanks to the pheromone trail that they leave) are two factors which determine their routes as they forage.

In addition, the pheromone breaks down over time at a rate that depends on climate conditions, which enables construction to adapt to the environment.

An ant faced with two paths to a food source may not know which is best, but an ant colony can quickly sort this out: Individuals leave trails of chemicals called pheromones to mark the route from nest to food and back.

On the other hand, in a humid environment, the pheromone persists for a longer time, which leads to a greater number of pillars and to smaller chambers.

They add a pheromone to their material, which stimulates the other ants to build on the same spot, leading to the formation of regularly spaced pillars.

In addition, isoamyl acetate (IAA), which is the major component of the honeybee alarm pheromone [20], is emitted from a hot defensive bee ball [6].

Epigenetically - effected hypothalamic GnRH secretion is central to my model of nutrient - dependent pheromone - controlled adaptive evolution, which was presented as «Olfactory - genetic - neuronal - hormonal reciprocity in learning, memory, behavior and in immune function» during a 1995 Anti-Aging medicine conference.

Some of the key genes produce waterborne pheromones, used by the barnacles to attract each other, which allows them to attach to surfaces close to each other where they will be able to mate.

In moths, females emit a species - specific sex pheromone, consisting of a blend of biochemically related components, to which males are attracted.

Third, genes involved in pheromone detection are often species - specific and functional orthologues are typically lacking in the human genome, which confound their detection by comparative genomic methods [22].