نتایج جستجو برای: wild roses

تعداد نتایج: 161345  

Journal: :IEICE Electronic Express 2007
M. Takano Y. Fujiwara I. Sugimoto S. Mitachi

In order to detect plant aroma in a natural environment, we have investigated roses’ aroma using an odor sensor of quartz crystal resonator (QCR). In present work, we describe experimental setup for real-time sensing of roses’ aroma and feature extraction of roses’ aroma sensed by QCR sensors. This method can distinguish as different aroma as human sense of smell judged for two kinds of roses. ...

2017
Peter W Horby Karen L Laurie Benjamin J Cowling Othmar G Engelhardt Katharine Sturm-Ramirez Jose L Sanchez Jacqueline M Katz Timothy M Uyeki John Wood Maria D Van Kerkhove

BACKGROUND Population-based serologic studies are a vital tool for understanding the epidemiology of influenza and other respiratory viruses, including the early assessment of the transmissibility and severity of the 2009 influenza pandemic, and Middle East respiratory syndrome coronavirus. However, interpretation of the results of serologic studies has been hampered by the diversity of approac...

2014
Soohyung Lee Muriel Niederle

A growing number of papers theoretically study the effects of introducing a preference signaling mechanism. However, the empirical literature has had difficulty proving a basic tenet, namely that an agent has more success when the agent uses a signal. This paper provides evidence based on a field experiment in an online dating market. Participants are randomly endowed with two or eight ‘‘virtua...

2017
Vivian Zayas Gayathri Pandey Joshua Tabak

Attitudes are not static, but constructed at the moment of the evaluation, incorporating temporary contextual influences. How do meaningful events that naturally occur within a culture, such as a national holiday, shape evaluative judgments of objects related to the holiday? We focused on evaluations of red roses and gift chocolates, which are everyday objects, but also iconic of Valentine's Da...

Journal: :The Horticulture Journal 2023

Rosa foetida Herrm. is an important wild rose that contributed to the birth of modern yellow cultivars. It also well known for unpleasant odor, not prevalent in other roses, emanating from its petals. We analyzed floral scent R. and sport cultivars, var. bicolor (Jacq.) Willm. f. persiana (Lem.) Rehd., identify causative compounds their offensive odor. Fatty acid derivatives 2,4-decadienal (2,4...

Journal: :Annals of botany 2006
Jean-Claude Caissard Véronique Bergougnoux Magali Martin Mélanie Mauriat Sylvie Baudino

BACKGROUND AND AIMS Moss roses are old garden roses covered with a mossy growth on flower pedicel and calyx. This moss releases a pine-scented oleoresin that is very sticky and odoriferous. Rosa x centifolia 'muscosa' was the first moss rose to be obtained by bud-mutation but, interestingly, R. x damascena 'Quatre Saisons Blanc Mousseux' was the first repeat-blooming cultivar, thus interesting ...

Journal: :Journal of experimental botany 2013
Mohammed Bendahmane Annick Dubois Olivier Raymond Manuel Le Bris

Roses hold high symbolic value and great cultural importance in different societies throughout human history. They are widely used as garden ornamental plants, as cut flowers, and for the production of essential oils for the perfume and cosmetic industries. Domestication of roses has a long and complex history, and the rose species have been hybridized across vast geographic areas such as Europ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید