Química

Matemáticas y ciencia / Química (8486)

Matemáticas y ciencia / Química
Libros Eliminar filtro Matemáticas y ciencia Eliminar filtro Química Eliminar filtro Quitar filtros
  • Der Elementarführer
    Haresh K. Ram
    'The Elemental Guide: A Chemistry Encyclopedia' ist ein sorgfältig ausgearbeitetes Kompendium, das von Dr. Haresh Ram, einem geschätzten Assistenzprofessor am Tolani College of Arts and Science, kuratiert wurde. Dieses umfassende Nachschlagewerk bietet einen tiefen Einblick in die riesige und komplizierte Welt der Chemie und versorgt die Leser mit einem reichhaltigen Wissensfun...
    Disponible

    97,53 €

  • RECENTI PROGRESSI NELL’ATTIVITÀ ANTITUMORALE DEI DERIVATI DEI FLAVONOIDI
    Dr. M. RAJASEKAR
    Un gruppo di metaboliti secondari delle piante noto come flavonoidi, sostanze chimiche polifenoliche, ha una varietà di proprietà farmacologiche, tra cui quelle antitumorali. Modificando vari enzimi e recettori nelle vie di trasduzione del segnale legate alla proliferazione cellulare, alla differenziazione, all’apoptosi, all’infiammazione, all’angiogenesi, alle metastasi e all’...
    Disponible

    62,87 €

  • Herstellung von nanoporösem Silizium
    Awad Mogoda
    Die Eigenschaften der porösen Si-Schicht, die durch silberverstärktes chemisches Ätzen von p-Si in wässriger HF/HNO3-Lösung gebildet wird, werden durch die Konzentration der Ag-Ionen im Beschichtungsbad, die Konzentrationen sowohl des Ätzmittels (HF) als auch des Oxidationsmittels (HNO3) und die Ätzzeit des Si-Substrats beeinflusst. Die SEM-Ergebnisse bestätigten, dass die Absc...
    Disponible

    62,74 €

  • Fabrication de silicium nanoporeux
    Awad Mogoda
    Les caractéristiques de la couche de Si poreux formée par la gravure chimique améliorée par l’argent de p-Si dans une solution aqueuse HF/HNO3 sont influencées par la concentration d’ions Ag dans le bain de placage, les concentrations de l’agent de gravure (HF) et de l’agent oxydant (HNO3), et le temps de gravure du substrat de Si. Les résultats du MEB ont confirmé que le dépôt...
    Disponible

    62,74 €

  • Fabrico de silício nanoporoso
    Awad Mogoda
    As características da camada porosa de Si formada pelo condicionamento químico de p-Si com prata em solução aquosa de HF/HNO3 são influenciadas pela concentração de iões de Ag no banho de revestimento, pelas concentrações do condicionador (HF) e do agente oxidante (HNO3) e pelo tempo de condicionamento do substrato de Si. Os resultados do SEM confirmaram que a deposição de iões...
    Disponible

    62,74 €

  • Изготовление нанопористого кремния
    Авад Могода
    Характеристики пористого слоя Si, сформированного в результате усиленного серебром химического травления p-Si в водном растворе HF/HNO3, зависят от концентрации ионов Ag в ванне осаждения, концентрации травителя (HF) и окислителя (HNO3), а также времени травления Si-подложки. Результаты РЭМ подтвердили, что осаждение ионов серебра из 1,0 × 10-3 М раствора AgNO3 на p-Si перед хи...
    Disponible

    62,74 €

  • Fabbricazione di silicio nanoporoso
    Awad Mogoda
    Le caratteristiche dello strato di Si poroso formato dall’incisione chimica con argento del p-Si in soluzione acquosa di HF/HNO3 sono influenzate dalla concentrazione di ioni Ag nel bagno di placcatura, dalle concentrazioni del mordenzante (HF) e dell’agente ossidante (HNO3) e dal tempo di incisione del substrato di Si. I risultati del SEM hanno confermato che la deposizione di...
    Disponible

    62,74 €

  • JÜNGSTE FORTSCHRITTE BEI DER KREBSBEKÄMPFENDEN WIRKUNG VON FLAVONOIDDERIVATEN
    Dr. M. RAJASEKAR
    Eine Gruppe sekundärer Pflanzenstoffe, die als Flavonoide bekannt sind und zu den polyphenolischen Chemikalien gehören, haben eine Vielzahl pharmakologischer Eigenschaften, darunter auch krebshemmende Eigenschaften. Durch die Veränderung verschiedener Enzyme und Rezeptoren in den Signaltransduktionswegen, die mit der zellulären Proliferation, Differenzierung, Apoptose, Entzündu...
    Disponible

    62,94 €

  • PROGRÈS RÉCENTS DANS L’ACTIVITÉ ANTICANCÉREUSE DES DÉRIVÉS FLAVONOÏDES
    Dr. M. RAJASEKAR
    Un groupe de métabolites végétaux secondaires connus sous le nom de flavonoïdes, qui sont des produits chimiques polyphénoliques, possède une variété de propriétés pharmacologiques, y compris des propriétés anticancéreuses. En modifiant divers enzymes et récepteurs dans les voies de transduction du signal liées à la prolifération cellulaire, à la différenciation, à l’apoptose, ...
    Disponible

    62,94 €

  • AVANÇOS RECENTES NA ACTIVIDADE ANTICANCERÍGENA DE DERIVADOS DE FLAVONÓIDES
    Dr. M. RAJASEKAR
    Um grupo de metabolitos secundários de plantas conhecido como flavonóides, que são substâncias químicas polifenólicas, tem uma variedade de propriedades farmacológicas, incluindo propriedades anticancerígenas. Ao modificarem várias enzimas e receptores nas vias de transdução de sinal relacionadas com a proliferação celular, diferenciação, apoptose, inflamação, angiogénese, metá...
    Disponible

    62,94 €

  • ПОСЛЕДНИЕ ДОСТИЖЕНИЯ В ОБЛАСТИ ПРОТИВОРАКОВОЙ АКТИВНОСТИ ПРОИЗВОДНЫХ ФЛАВОНОИДОВ
    Др. М. РАДЖАСЕКАР
    Группа вторичных растительных метаболитов, известных как флавоноиды, являющиеся полифенольными химическими веществами, обладает разнообразными фармакологическими свойствами, в том числе противораковыми. Изменения различных ферментов и рецепторов в путях передачи сигналов, связанных с клеточной пролиферацией, дифференцировкой, апоптозом, воспалением, ангиогенезом, метастазирован...
    Disponible

    62,94 €

  • Dünne Schichten aus CdS und CdSe und ihre Verwendung in der alternativen Energie
    Liliya Deva / Ruslana Huminilovych
    Der ständig wachsende Energieverbrauch und die steigenden Preise für Energiequellen veranlassen zur Suche nach neuen Methoden und Materialien für die direkte Umwandlung von Sonnenenergie. Eine kritische Analyse der wissenschaftlichen und technischen Literatur zeigt, dass nur Dünnschichtsolarzellen (SC) mit den herkömmlichen Energiequellen konkurrieren können.Trotz zahlreicher S...
    Disponible

    114,28 €

  • The Poetry of Tin
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Tin belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Poetry has the power to transform even the most mundane subjects into som...
    Disponible

    16,05 €

  • The Poetrty of Palladium
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Palladium belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Creating a poetry book about the chemical element of Palladium was ...
    Disponible

    16,08 €

  • The Poetry of Tellurium
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Tellurium belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Creating a poetry book about the chemical element Tellurium was an ...
    Disponible

    16,11 €

  • The Poetry of Cadmium
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Cadmium belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. A poetry book about Cadmium can serve as a vehicle for artistic expre...
    Disponible

    16,08 €

  • The Poetry of Silver
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Silver belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Creating a book about the chemical element of silver can serve several...
    Disponible

    16,08 €

  • The Poetry of Indium
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Indium belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Creating a poetry book about the chemical element Indium was an intrig...
    Disponible

    16,08 €

  • The Poetry of Antimony
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Antimony belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Creating a poetry book about the chemical element of Antimony was a ...
    Disponible

    16,11 €

  • The Philosopher’s Sky or The Secrets Of Nature
    Philippo Ulstadio Patricio / Christopher Templesage
    In this first-ever English translation of 'Coelum Philosophorum seu de Secretis Naturae Liber,' Christopher Templesage unveils the arcane world of alchemy as articulated by Philippo Ulstadio Patricio. This seminal work, a meticulous treatise on alchemical distillation, now accessible to the English-speaking world, guides readers through the construction and usage of sophisticat...
    Disponible

    44,14 €

  • Artifact Recovery
    Nichole Doub
    A resource long needed in CRM.Cultural contexts and artifact identification tend to be the focus of archaeological education, with comparatively little emphasis on the actual materials that were used in the fabrication of the objects we recover, or why that information might even be relevant.Artifact Recovery successfully provides a basic introduction to the chemistry of those ...
    Disponible

    30,06 €

  • Total synthesis of indole derivatives
    Foram Vaghela / Kanji Kachhot
    Here a total synthesis of some 2-substituted indole derivatives like 2-phenyl indole and 1,2,3,4-tetrahydro carbazole and their N-protection by some new trial reagent as a Benzyl bromide and Allyl bromide successfully protect an indole derivatives and it gives a pure compound by Column chromatography method. also, synthesized Formylation by Vilsmaiyer-Hack reaction to attached ...
    Disponible

    72,39 €

  • In Flux
    JANAKI H. CHAUHAN
    'In Flux: Navigating the Dynamic Pharmacokinetic Spectrum' marks an exciting exploration into the ever-evolving realm of pharmacokinetics, meticulously crafted by Janaki Chauhan, a dedicated research scholar at R.R. Lalan College, Bhuj. With a profound passion for unraveling the mysteries of drug behavior within the human body, Janaki has delved into the intricate world of dyna...
    Disponible

    94,73 €

  • Metanning Monitoringini Aniqlovchi Kimyoviy Sensorlar Yaratish
    Mavjuda Eshkobilova
    Dunyoda, ilmiy- texnik taraqqiyot natijasida, sanoat jadal rivojlanib borayotgan bir davrda, ishlab chiqarish va turar-joy binolarini portlash va yongʼin xavfsizligini taʼminlovchi kimyoviy sensorlar va signalizatorlar yaratish muhim nazariy va amaliy ahamiyatga ega. Turar joy va ishlab chiqarish korxonalari binolarida kuzatiladigan eng xavfli baxtsiz hodisalardan biri metannin...
    Disponible

    79,25 €

  • The Poetry of Rubidium
    Walter the Educator
    'Earning a degree in chemistry changed my life!' - Walter the Educator. This book is dedicated to all the chemistry lovers, like myself, across the world. The Poetry of Rubidium belongs to the Chemical Element Poetry Book Series by Walter the Educator™. Collect all books in the series at WaltertheEducator.com. Creating a poetry book about the chemical element of Rubidium was an...
    Disponible

    16,08 €

  • The Big Book of Terps
    Russ Hudson
    The Big Book of Terps is the world’s largest and most comprehensive resource on terpenes and synergy in cannabis, with nearly 450 pages, 1,350+ citations/references, 157,000+ words, 51 quizzes, 1 final exam, dozens of custom molecular images, and an index of key terms. This significant work includes information not previously known to the cannabis industry, as well as several d...
    Disponible

    108,01 €

  • Chemistry of Carotenoid Radicals and Complexes
    A Ligia Focsan / Lowell D Kispert
    Carotenoids are indispensable molecules for life. They are present everywhere in plants, algae and bacteria, whom they protect against free radicals and oxidative stress. Through consumption of fruits, vegetables and carotenoid-containing fish, they are introduced into the human body and, similarly, protect it. There are thus numerous health benefits associated with the consump...
    Disponible

    107,55 €

  • Die Chemie der Amine - eine wichtige Klasse von Stickstoffverbindungen
    Aeysha Sultan
    Amine sind eine wichtige Klasse von Stickstoffverbindungen, die in der Biochemie lebender Organismen eine wichtige Rolle spielen. Diese stickstoffhaltigen Verbindungen sind an der Bildung von Aminosäuren, vielen Vitaminen und Neurotransmittern wie Serotonin oder 5-Hydroxytryptamin beteiligt. Neben den Aminen, aus denen der menschliche Körper besteht (Aminosäuren), hat der Mensc...
    Disponible

    54,90 €

  • La chimie des amines - une classe importante de composés azotés
    Aeysha Sultan
    Les amines sont une classe importante de composés azotés qui jouent un rôle important dans la biochimie des organismes vivants. Ces composés azotés sont impliqués dans la création d’acides aminés, de nombreuses vitamines et de neurotransmetteurs tels que la sérotonine ou la 5-hydroxytryptamine. Outre les amines dont le corps humain est composé (acides aminés), l’homme a trouvé ...
    Disponible

    54,90 €

  • La chimica delle ammine
    Aeysha Sultan
    Le ammine sono un’importante classe di composti azotati che svolgono un ruolo fondamentale nella biochimica degli organismi viventi. Questi composti contenenti azoto sono coinvolti nella creazione di aminoacidi, di molte vitamine e di neutrotrasmettitori come la serotonina o 5-idrossitriptamina. Oltre alle ammine di cui è composto il corpo umano (amminoacidi), l’uomo ha trovato...
    Disponible

    54,90 €


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