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Badania fitochemiczne i biologiczne fiolka wonnego uprawianego w Iraku

Badania fitochemiczne i biologiczne fiolka wonnego uprawianego w Iraku

Shaimaa Fakhri; Bushra M. Jaber

Wydawnictwo Nasza Wiedza
2025
nidottu
Książka stanowi przegląd niekt rych metabolit w wt rnych występujących w fiolku wonnym (Viola odorata L.), zebranych w szk lce roślin w Bagdadzie w okresie od kwietnia do lipca, a następnie poddanych frakcjonowaniu i izolacji stigmasterolu i β-sitosterolu. Badania biologiczne wykazaly dzialanie stigmasterolu i β-sitosterolu występujących w fiolku wonnym (Viola odorata L.) jako przeciwutleniaczy i środk w przeciwbakteryjnych.... Ekstrakcja stigmasterolu i β-sitosterolu jako surowego ekstraktu z każdej części korzeni, liści, kwiat w i nasion rośliny przy użyciu (eteru naftowego i metanolu) w celu jakościowej i ilościowej oceny stigmasterolu i β-sitosterolu w każdej części rośliny przy użyciu TLC, HPLC i CC.
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Atlas of Anorectal Anomalies

Atlas of Anorectal Anomalies

Amr Abdelhamid Zaki AbouZeid; Shaimaa Abdelsattar Mohammad

Springer International Publishing AG
2022
sidottu
This volume provides an in-depth analysis of abnormal pelvic anatomy in various forms of anorectal anomalies, often with multiple associations. The anatomy of the pelvis is one of the most complex in the body, and anatomists have provided detailed descriptions of normal anatomy based on cadaver dissections. However, congenital abnormalities present a spectrum of deviations from normal, which can be difficult to perceive with surgical practice alone. The advent of cross-sectional imaging has fortunately provided a powerful tool, allowing clinicians to study these anomalies in depth and on multiple planes. This volume will be an essential tool to better understand this spectrum of alterations in a critical region of the body, thus helping pediatric surgeons make the correct planning for a solid reconstruction of the abnormality.
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Atlas of Anorectal Anomalies

Atlas of Anorectal Anomalies

Amr Abdelhamid Zaki AbouZeid; Shaimaa Abdelsattar Mohammad

Springer International Publishing AG
2023
nidottu
This volume provides an in-depth analysis of abnormal pelvic anatomy in various forms of anorectal anomalies, often with multiple associations. The anatomy of the pelvis is one of the most complex in the body, and anatomists have provided detailed descriptions of normal anatomy based on cadaver dissections. However, congenital abnormalities present a spectrum of deviations from normal, which can be difficult to perceive with surgical practice alone. The advent of cross-sectional imaging has fortunately provided a powerful tool, allowing clinicians to study these anomalies in depth and on multiple planes. This volume will be an essential tool to better understand this spectrum of alterations in a critical region of the body, thus helping pediatric surgeons make the correct planning for a solid reconstruction of the abnormality.
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Literary Theory

Literary Theory

Wael Mustafa; Shaimaa El-Ateek

Noor Publishing
2021
pokkari
This book seeks to introduce readers of literature to some of the most important schools of literary theory and criticism in the 20th Century that have had significant impact on the study of literature. In each chapter, we explore and investigate the philosophical framework and the intellectual background informing the school in question as well as its main figures, its central tenets and main interpretative strategies. We look in particular for the distinctive perspective of each school regarding the definition of the nature of the relationship between text and reality, the nature of the relationship between the text and its author (the question of authorship); and the nature of the relationship linking literary theories to each other.
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Organosilanes and its applications

Organosilanes and its applications

Mansoura A Abd-El-Maksoud; Shaimaa Tarek Mansour; Marwa El-Hussieny

SCHOLARS' PRESS
2023
pokkari
Organosilicon compounds are organometallic compounds containing carbon-silicon bonds. The associated science to their synthesis and characteristics is called organosilicon chemistry. Being colourless, combustible, hydrophobic, and air-stable, the majority of organosilicon compounds have characteristics with common organic molecules. A non-organic substance is silicon carbide.Many commercial goods contain organosilicon compounds. The most popular silicone-based coatings, antifoamers, caulks (sealant), adhesives, and sealants are. Adjuvants widely employed with fungicides and herbicides in agriculture and plant control are other crucial applications.Although there are no carbon-silicon bonds in nature, enzymes have been utilised to synthesise artificial carbon-silicon bonds in living bacteria. On the other hand, diatoms have been found to contain silicates. A pyrethroid insecticide known as silafluofen is an organosilicon chemical. There are several organosilicon used as pharmaceuticals.
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Organosilane Und Ihre Anwendungen

Organosilane Und Ihre Anwendungen

Mansoura A Abd-El-Maksoud; Shaimaa Tarek Mansour; Marwa El-Hussieny

Verlag Unser Wissen
2023
pokkari
Siliciumorganische Verbindungen sind metallorganische Verbindungen mit Kohlenstoff-Silicium-Bindungen. Die Wissenschaft, die sich mit ihrer Synthese und ihren Eigenschaften befasst, wird als siliciumorganische Chemie bezeichnet. Da sie farblos, brennbar, hydrophob und luftstabil sind, weisen die meisten siliciumorganischen Verbindungen Eigenschaften auf, die denen gew hnlicher organischer Molek le entsprechen. Eine nicht-organische Substanz ist Siliciumcarbid.Viele Handelswaren enthalten siliciumorganische Verbindungen. Die g ngigsten Beschichtungen auf Silikonbasis, Antischaummittel, Dichtungsmassen, Klebstoffe und Dichtungsmittel sind. Weitere wichtige Anwendungen sind Adjuvantien, die h ufig in Fungiziden und Herbiziden in der Landwirtschaft und der Pflanzenbek mpfung eingesetzt werden.Obwohl es in der Natur keine Kohlenstoff-Silizium-Bindungen gibt, wurden Enzyme eingesetzt, um k nstliche Kohlenstoff-Silizium-Bindungen in lebenden Bakterien zu synthetisieren. Andererseits hat man festgestellt, dass Kieselalgen Silikate enthalten. Ein Pyrethroid-Insektizid namens Silafluofen ist eine siliziumorganische Chemikalie. Es gibt mehrere Organosiliziumverbindungen, die als Arzneimittel verwendet werden
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Gli Organosilani E Le Loro Applicazioni

Gli Organosilani E Le Loro Applicazioni

Mansoura A Abd-El-Maksoud; Shaimaa Tarek Mansour; Marwa El-Hussieny

Edizioni Sapienza
2023
pokkari
I composti organosiliconici sono composti organometallici contenenti legami carbonio-silicio. La scienza associata alla loro sintesi e alle loro caratteristiche chiamata chimica organosiliconica. Essendo incolori, combustibili, idrofobici e stabili all'aria, la maggior parte dei composti organosiliconici ha caratteristiche simili alle comuni molecole organiche. Una sostanza non organica il carburo di silicio.Molti prodotti commerciali contengono composti di organosilicio. I rivestimenti, gli antischiuma, i calchi (sigillanti), gli adesivi e i sigillanti a base di silicone pi diffusi sono. I coadiuvanti ampiamente utilizzati con fungicidi ed erbicidi in agricoltura e nel controllo delle piante sono altre applicazioni cruciali.Sebbene in natura non esistano legami carbonio-silicio, sono stati utilizzati enzimi per sintetizzare legami artificiali carbonio-silicio nei batteri viventi. D'altra parte, si scoperto che le diatomee contengono silicati. Un insetticida piretroide noto come silafluofen una sostanza chimica organosiliconica. Esistono diversi organosiliconi utilizzati come prodotti farmaceutici.
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Organosilanos E Suas Aplicações

Organosilanos E Suas Aplicações

Mansoura A Abd-El-Maksoud; Shaimaa Tarek Mansour; Marwa El-Hussieny

Edicoes Nosso Conhecimento
2023
pokkari
Os compostos de organosil cio s o compostos organomet licos que cont m liga es carbono-sil cio. A ci ncia associada sua s ntese e caracter sticas designada por qu mica do organossil cio. Sendo incolores, combust veis, hidrof bicos e est veis ao ar, a maioria dos compostos de organossil cio tem caracter sticas de mol culas org nicas comuns. Uma subst ncia n o org nica o carboneto de sil cio.Muitos produtos comerciais cont m compostos de organosil cio. Os revestimentos, antiespumantes, calafetagens (vedantes), adesivos e vedantes base de silicone mais populares s o. Os adjuvantes amplamente utilizados com fungicidas e herbicidas na agricultura e no controlo de plantas s o outras aplica es cruciais.Embora n o existam liga es de carbono-sil cio na natureza, foram utilizadas enzimas para sintetizar liga es artificiais de carbono-sil cio em bact rias vivas. Por outro lado, descobriu-se que as diatom ceas cont m silicatos. Um inseticida piretr ide conhecido como silafluofeno um qu mico organosil cio. Existem v rios organosilicones utilizados como produtos farmac uticos
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