نتایج جستجو برای: rosin modification

تعداد نتایج: 127781  

Journal: :Public understanding of science 2012
Priya Kurian Jeanette Wright

The acceptance of public participation in science and technology governance in liberal democratic contexts is evident in the institutionalization of a variety of mechanisms for participation in recent decades. Yet questions remain about the extent to which institutions have actually transformed their policy practice to embrace democratic governance of techno-scientific decision making. A critic...

Journal: :Journal of Industrial & Engineering Chemistry 1915

Journal: :Biomass Conversion and Biorefinery 2023

Abstract In the paper, five quaternary ammonium salts derived from rosin were synthesized, characterized and their antifungal activities against different molds studied. Choline salt tetramethylammonium hydroxide synthesized dehydroabietic acid ethanolamine ester which are new compounds propylene pimaric acid. Their structures confirmed by FTIR, 1 HNMR, 13 CNMR, high resolution mass spectrometr...

Journal: :acta medica iranica 0
"pourang h sadighi a "

hirchsprung’s disease is a developmental disorder of the enteric nervous system, characterized by abdsence of ganglion cell in the myenterric and submucosal plexuese along a variable portion of the distal intestine.the purpose of this study is the presentation of a new procedure for reduction of the postoperative complications of hirschsprung’s disease (hd) by offering a modified swenson’s tech...

Journal: :iranian journal of parasitology 0
mehdi mohebali dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran and center for research of endemic parasites of iran (crepi), tehran university of medical sciences, tehran, iran behnaz akhoundi dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran zahra kakooei dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran zabih zarei dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran and meshkin shahr research station, school of public health, tehran university of medical sciences, meshkin shahr, iran sorour charehdar dept. of medical parasitology and mycology, school of public health, tehran university of medical sciences, tehran, iran soheila molaei meshkin shahr health centre, ardabil university of medical sciences, meshkin shahr, iran

background: visceral leishmaniasis is systematic serous parasitic disease with pub­lic health importance. zoonotic form of visceral leishmaniasis is wide spread in mediterranean basin and south america regions. direct agglutination test (dat) is an accurate, reliable and non-expensive serological test for the diagnosis of visceral leishmaniasis in human and canines but the antigen preparation i...

Journal: :international journal of environmental research 2010
h.r. tashauoei h. movahedian attar m. kamali m.m. amin m. nikaeen

chromium (vi) adsorption behavior and capacity by surface modified nanozeolite a has been investigated. surface modification was performed and the morphology of modified and unmodified nanozeolite was studied using scanning electron microscope (sem) and transmission electron microscope (tem). adsorption isotherms were studied under different conditions (ph, adsorbent dose, adsorbate concentrati...

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