نتایج جستجو برای: ambient odor

تعداد نتایج: 59990  

Journal: :Journal of the American Veterinary Medical Association 2006
Deborah L Wells

OBJECTIVE To evaluate the efficacy of the ambient odor of lavender as a treatment for travel-induced excitement in dogs. DESIGN Clinical trial. Animals-32 dogs with a history of travel-induced excitement in owners' cars. PROCEDURES Each dog was studied during travel in the owner's car to a familiar walking site during 2 conditions of olfactory stimulation. The first condition was a control ...

2017
Nurul Syahirah Shamsol Anuar Aeyshah Abang Kassim Motoo Utsumi Koji Iwamoto Masafumi Goto Kazuya Shimizu Nor’azizi Othman Zuriati Zakaria Norio Sugiura Hirofumi Hara

Geosmin and 2-methylisoborneol (MIB) outbreaks in tropical water bodies, such as Southeast Asia, by actinomycetes have not yet been elucidated in detail. Six Streptomyces isolates from lowland environments in Malaysia were selected and evaluated for their odor production under different temperatures. The gene responsible for the production of geosmin, geoA, was detected in all isolates, while o...

Journal: :Behavioral neuroscience 2016
Nadja Herten Tobias Otto Dirk Adolph Bettina M Pause Robert Kumsta Oliver T Wolf

Cortisol release in a stressful situation can be beneficial for memory encoding and memory consolidation. Stimuli, such as odors, related to the stressful episode may successfully cue memory contents of the stress experience. The current investigation aimed at testing the potency of stress to influence startle responsivity 24 hr later and to implicitly reactivate emotional memory traces trigger...

2010
Alexander Toet Monique A. M. Smeets Elly van Dijk Davina Dijkstra Lieke van den Reijen

Previous studies showed that orange odor reduces the anticipatory anxiety and improves the mood of patients waiting for scheduled appointments in small dental practices. We replicated these previous studies in the setting of three large dental clinics. In addition, we investigated whether another pleasant fruity smell (apple odor) is similarly associated with reduced anxiety. We included 219 pa...

Journal: :Neurobiology of learning and memory 2014
Uta S Wiemers Magdalena M Sauvage Oliver T Wolf

Olfactory information seems to play a special role in memory due to the fast and direct processing of olfactory information in limbic areas like the amygdala and the hippocampus. This has led to the assumption that odors can serve as effective retrieval cues for autobiographic memories, especially emotional memories. The current study sought to investigate whether an olfactory cue can serve as ...

Journal: :Journal of hazardous materials 2009
Arslan Saral Selami Demir Senol Yildiz

An air pollution modeling study was conducted to investigate the odorous effects of volatile organic compounds (VOCs) emissions from a sanitary landfill area on ambient air quality. The atmospheric dispersion of hydrogen sulfide (H(2)S) and 22 VOCs was modeled. Industrial Source Complex v3 Short Term (ISCST3) model was used to estimate hourly concentrations of odorous VOCs over the nearest resi...

Journal: :The Journal of experimental biology 2011
Matthew A Reidenbach M A R Koehl

Odors are dispersed across aquatic habitats by turbulent water flow as filamentous, intermittent plumes. Many crustaceans sniff (take discrete samples of ambient water and the odors it carries) by flicking their olfactory antennules. We used planar laser-induced fluorescence to investigate how flicking antennules of different morphologies (long antennules of spiny lobsters, Panulirus argus; sho...

2004
Nengbing Xu Hongmei Ying Libo Zhu

Tetrahydrothiophene (THT) is an odor additive used widely in the world. This paper introduced a new pre-concentration techniques coupled with a PFPD detector to analyze THT in ambient air samples. The positive results have been obtained in both standard and actual sample analysis. The results indicate that using Summa canisters or Tedlar bags to take the samples and followed by pre concentratio...

2004
Susan S. Schiffman Brevick G. Graham

The purpose of this report is to compare odor dispersion at swine facilities that use alternative waste technologies (as well as a waste processing center) with odor dispersion at two control farms that use conventional lagoon technology. The goal was to determine if these alternative technologies reduce or substantially eliminate the emission of odor that is detectable beyond the boundaries of...

Journal: :Journal of environmental quality 2001
J A Zahn A A DiSpirito Y S Do B E Brooks E E Cooper J L Hatfield

Direct multicomponent analysis of malodorous volatile organic compounds (VOCs) present in ambient air samples from 29 swine (Sus scrofa) production facilities was used to develop a 19-component artificial swine odor solution that simulated olfactory properties of swine effluent. Analyses employing either a human panel consisting of 14 subjects or gas chromatography were performed on the air str...

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