نتایج جستجو برای: 2 acetyl γ butyrolactone

تعداد نتایج: 2593808  

2017
Elina K. Palonen Sheetal Raina Annika Brandt Jussi Meriluoto Tajalli Keshavarz Juhani T. Soini

Filamentous fungi of the Ascomycota phylum are known to contain a family of conserved conidiation regulating proteins with distinctive velvet domains. In Aspergilli, this velvet family includes four proteins, VeA, VelB, VelC and VosA, and is involved in conidiation and secondary metabolism along with a global regulator LaeA. In A. terreus, the overexpression of LaeA has been observed to increas...

Journal: :Phytopathology 2021

It is well described that viral infections stimulate the emission of plant volatiles able to recruit vectors thereby promoting virus spread. In contrast, much less known on effects emitted may have metabolism healthy neighboring plants, which are potential targets for new through vector transmission. Watermelon mosaic (WMV) (genus Potyvirus, family Potyviridae) an aphid-transmitted endemic in c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم پایه 1393

مگنتیت و مگهمیت به عنوان مواد فرومغناطیس به طور گسترده¬ای در ذخیره داده¬¬های صوتی و تصویری، سرمایش مغناطیسی، فرایندهای زیستی و غیره استفاده می¬شوند. در دو دهه اخیر به دلیل هزینه کم تولید و عدم نیاز به استفاده از فلزات گرانقیمت در آنها، به عنوان جاذب برخی آلاینده¬های زیستی استفاده می¬شوند. نانوذرات fexoy از روش¬های مختلف قابل تهیه می¬باشند ولی روش سنتز سونوشیمیایی مورداستفاده ارزان، ساده و جایگز...

Journal: :Analytical and bioanalytical chemistry 2011
Paul Kuhlich Robert Göstl Philip Teichert Christian Piechotta Irene Nehls

In this work, the behavior of the polycyclic musks 6-acetyl-1,1,2,4,4,7-hexamethyltetraline (AHTN) and 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-γ-2-benzopyran (HHCB) was investigated upon disinfection by using sodium hypochlorite as disinfectant in a model disinfection basin in order to find new disinfection by-products (DBP). In the case of AHTN, the carboxylic acid 3,5,5,6,8,8-h...

Journal: :International journal of agriculture, environment and food sciences 2021

The essential oils from twenty-two plants grown in the highlands were isolated by hydrodistillation. with an oil yield above one percent, including Achillea millefolium, Asparagus plumosus, Matricaria chamomilla, Mentha piperita, pulegium, and Thymus vulgaris, tested for antibacterial activity total antioxidant capacity. Their activities against three most common foodborne pathogens opportunist...

2007
MATTHIAS KURZKE DANIEL SPIRN

We consider the Gamma limit of the Abelian Chern-Simons-Higgs energy

Journal: :iranian journal of science and technology (sciences) 2007
a. jarrahpour

synthesis of some new monocyclic β-lactams containing a quaternary carbon center via a [2+2]cycloaddition reaction is described. the reaction of achiral diphenyl ketene with chiral aldimines derivedfrom chiral 2, 3, 4, 6-tetra-o-acetyl-β-d-galactopyranosylamine, 2, 3, 4, 6-tetra-o-acetyl-β-dglucopyranosylamine and different benzaldehydes resulted in the formation of β-lactams as singlediastereo...

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