Search results for "noste"

Asymmetric Allylation/Pauson-Khand Reaction: A Simple Entry to Polycyclic Amines. Application to the Synthesis of Aminosteroid Analogues

2014

Asymmetric allylation of o-iodoarylsulfinylimines has been achieved in high diastereoselectivities. The thus-obtained o-iodoarylhomoallylic sulfinamides participate in a subsequent Sonogashira coupling followed by a diastereoselective intramolecular Pauson-Khand reaction. In this way, tricyclic amines showing a unique benzo-fused indenyl backbone were obtained. The methodology has been applied to the synthesis of amino steroid analogues.

Design and Synthesis of Novel 1,3-Thiazole and 2-Hydrazinyl-1,3-Thiazole Derivatives as Anti-Candida Agents: In Vitro Antifungal Screening, Molecular…

2019

In the context of there being a limited number of clinically approved drugs for the treatment of Candida sp.-based infections, along with the rapid development of resistance to the existing antifungals, two novel series of 4-phenyl-1,3-thiazole and 2-hydrazinyl-4-phenyl-1,3-thiazole derivatives were synthesized and tested in vitro for their anti-Candida potential. Two compounds (7a and 7e) showed promising inhibitory activity against the pathogenic C. albicans strain, exhibiting substantially lower MIC values (7.81 &mu

The influence of brassinosteroid on growth and parameters of photosynthesis of wheat and mustard plants.

1984

The growth response of wheat (Triticum aest. L.) and mustard seedlings (Sinapis alba L.) treated with 10(-6) mol · l(-1) brassinosteroid (BR) foliar spray was measured. BR-treatment resulted in a general promotion of plant growth. We found the accumulation of photosynthates to be stimulated in the treated plants, as indicated by enhanced fresh and dry weights of leaves and shoots. BR also promoted the synthesis of soluble proteins and soluble reducing sugars, whereas the chlorophyll content was hardly affected. CO(2)-fixation in vivo as well as the (in vitro) RubPC-ase activity of BR-treated leaves were enhanced. In the developing wheat leaves we detected no difference in the ratio fraction…

Proteome analysis of leaves of the desiccation-tolerant grass, Sporobolus stapfianus, in response to dehydration.

2011

Drought and its affects on agricultural production is a serious issue facing global efforts to increase food supplies and ensure food security for the growing world population. Understanding how plants respond to dehydration is an important prerequisite for developing strategies for crop improvement in drought tolerance. This has proved to be a difficult task as all of the current research plant models do not tolerate cellular dehydration well and, like all crops, they succumb to the effects of a relatively small water deficit of -4MPa or less. For these reasons many researchers have started to investigate the usefulness of resurrection plants, plants that can survive extremes of dehydratio…

The Influence of Brassinosteroid, a Growth-promoting Steroidal Lactone, on Development and CO2-fixation Capacity of Intact Wheat and Mustard Seedlings

1984

In 1970, Mitchell et al. isolated a lipoidal complex from the pollen of rape (Brassica napus L.). This complex, called “Brassins” was found to have partly powerful growth-promoting properties. The novel growth response of young bean plants in the second internode assay (Worley, Mitchell 1971; Mitchell, Gregory 1972) and other physiological changes following Brassin-treatment have been studied under several aspects (Krizek, Worley 1981; Gregory 1981).

Mainosten adjektiivit ja niiden välittämä ideologia vuosien 1950 ja 1995 Kotiliesi-lehdissä

1998

Mainoksen sana, kuva ja niiden muodostama kokonaisuus : vuoden 1995 Helsingin Sanomien Kuukausiliitteiden mainosten verbaalista ja visuaalista analyy…

1997

Tutkiva oppiminen tuntisuunnitelmissa : ympäristö- ja luonnontiedon pedagogiikan kurssin vaikutukset opetuksen suunnitteluun

2015

Tässä tutkimuksessa selvitän, millä tavalla luokanopettajaksi opiskeleville tarjottu ympäristö- ja luonnontiedon pedagogiikan koulutusjakso vaikuttaa heidän kykyynsä suunnitella tutkivan oppimisen mukaisia oppitunteja. Tarkastelen asiaa vertailemalla opiskelijoiden laatimia tuntisuunnitelmia, joista ensimmäiset on tehty ennen ympäristö- ja luonnontiedon pedagogiikan kurssia ja toiset sen jälkeen. Tutkimukseni aineisto koostuu vuonna 2012, ympäristö- ja luonnontiedon pedagogiikan kurssin aikana laadituista tuntisuunnitelmista, jotka analysoitiin teoriaohjaavan sisällönanalyysin keinoin. Tuntisuunnitelmissa käsitellään fysiikan ainesisältöön kuuluvan nosteen käsitteen opettamista peruskoulun …