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1000 tulosta hakusanalla Markos R Hanna

Surgical Anatomy of the Lumbar Plexus

Surgical Anatomy of the Lumbar Plexus

R. Shane Tubbs; Marios Loukas; Amgad Hanna; Rod Oskouian

Thieme Medical Publishers Inc
2018
muu
Dedicated guide to the lumbar plexus provides invaluable anatomical and surgical insights Thorough knowledge of the lumbar plexus and its branches is crucial to achieving positive patient outcomes, especially with newer surgical approaches. Many of the nerve branches are formed within the psoas major muscle and careful dissection is necessary to free them during surgery to prevent damage. Moreover, the iliac vessels are medial to some of the larger branches of the plexus, such as the femoral and obturator nerves. In the retroperitoneal space, the kidney and ureter are nearby. In addition, due to the overlying peritoneal cavity and its contents, accessing the lumbar plexus presents considerable challenges. Surgical Anatomy of the Lumbar Plexus is the only book on the market devoted to the lumbar plexus and its branches, focusing on anatomy and clinical applications, pathology, surgery, and imaging. Internationally known authors R. Shane Tubbs, Marios Loukas, Amgad Hanna, Rod Oskouian and a cadre of esteemed specialists provide unique insights, clinical pearls, knowledge based on thousands of spine surgeries, and a well-rounded multidisciplinary perspective. Key HighlightsNine separate chapters dedicated to impacted nerves: subcostal, iliohypogastric, ilioinguinal, lateral femoral cutaneous, genitofemoral, femoral, obturator, furcal, and accessory obturatorHistory and overview of dermatomal anatomy of branches derived from the lumbar plexusAnesthetic blockade of the femoral, lateral femoral cutaneous, iliohypogastric, ilioinguinal, and genitofemoral nervesTips for preventing complications and achieving positive outcomes for lateral transpsoas approaches to the lumbar spine and other proceduresMore than 100 novel illustrations provide clarity and understanding of a complex anatomical area as it relates to surgery involving the lumbar plexus and branches This o
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Saeculum

Saeculum

Markus R. A.

Cambridge University Press
1989
pokkari
In this book Professor Markus's main concern is with those aspects of Augustine's thought which help to answer questions about the purpose of human society, and particularly with his reflections on history, society and the Church. He relates Augustine's ideas to their contemporary context and to older traditions, and shows which aspects of his thought he absorbed from his intellectual environment. Augustine appears from this study as a thinker who rejected the 'sacralization' of the established order of society, and the implications of this for a theology of history are explored in the last chapter.
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The Myth of the Absentee Father: (A Transcript of Events)

The Myth of the Absentee Father: (A Transcript of Events)

Marcos R. Wise

Dorrance Publishing Co.
2017
nidottu
The Myth of the Absentee Father portrays the author's experiences with what he feels was an unfair family court system for non-custodial fathers. Marcos R. Wise wants fathers who are encountering the same obstacles to be involved in their children's lives to know they are not alone. He hopes readers support and understand his view that this system needs an overhaul, and subsequently begin a conversation about how things should change. About the Author Marcos R. Wise was raised in a two parent household in Tuskegee, Alabama, with four siblings. He was the fourth child with two older sisters and one older brother. He also has a younger sister. His father was the bread winner and his mother was a traditional housewife. He thought that this was the family Americans strived for - a well-rounded family. However, at forty-one years old, he can finally and wholeheartedly say that isn't the case.
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The First Wave

The First Wave

Marcos R Costa

Native Publishers
2023
pokkari
I hope this book helps Cancer survivors, their parents, and friends to understand what the person who has Cancer need to build a better life. HOPE...............FAITH............LOVE
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Spatio-Temporal Databases

Spatio-Temporal Databases

Marcos R. Vieira; Vassilis J. Tsotras

Springer International Publishing AG
2013
nidottu
This brief presents several new query processing techniques, called complex motion pattern queries, specifically designed for very large spatio-temporal databases of moving objects. The brief begins with the definition of flexible pattern queries, which are powerful because of the integration of variables and motion patterns. This is followed by a summary of the expressive power of patterns and flexibility of pattern queries. The brief then present the Spatio-Temporal Pattern System (STPS) and density-based pattern queries. STPS databases contain millions of records with information about mobile phone calls and are designed around cellular towers and places of interest. Density-based pattern queries capture the aggregate behavior of trajectories as groups. Several evaluation algorithms are presented for finding groups of trajectories that move together in space and time, i.e. within a predefined distance to each other. Finally, the brief describes a generic framework, called DivDB, for diversifying query results. Two new evaluation methods, as well as several existing ones, are described and tested in the proposed DivDB framework. The efficiency and effectiveness of all the proposed complex motion pattern queries are demonstrated through an extensive experimental evaluation using real and synthetic spatio-temporal databases. This clear evaluation of new query processing techniques makes Spatio-Temporal Database a valuable resource for professionals and researchers studying databases, data mining, and pattern recognition.
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Eletrocatalisadores nanoestruturados visando o estudo da RRO

Eletrocatalisadores nanoestruturados visando o estudo da RRO

Jonas B Reis; Marcos R V Lanza; Peter Hammer

Novas Edicoes Academicas
2017
pokkari
Neste trabalho foi estudado a atividade dos eletrocatalisadores nanoestruturados de Ru, Ir, Hf ou La suportados em carbono Printex 6L frente Rea o de Redu o de Oxig nio (RRO) em meio cido. Inicialmente analisou-se a influ ncia dos catalisadores pelo M todo de Impregna o e pelo M todo dos Precursores Polim ricos (MPP), tamb m conhecido como Pechini para os eletrocatalisadores RuO2/C e IrO2/C. Ficou evidente neste estudo, que os materiais obtidos pelo MPP apresentaram uma maior efici ncia de corrente para a eletrogera o de H2O2 quando comparado ao m todo da Impregna o. Na etapa seguinte, os eletrocatalisadores HfO2/C e LaONO3/C foram preparados apenas pelo MPP. As propriedades estruturais, morfol gicas e de superf cie foram investigadas por meio das t cnicas de caracteriza o DRX, FRX, MET, XPS e TG. Os resultados obtidos pelas voltametrias lineares, c lculos de efici ncia de corrente de H2O2 (H2O2%), n mero total de el trons trocados (nt) e de Kouteck -Levich mostraram que os eletrocatalisadores de Hf e La obtidos pelo m todo de Pechini s o promissores para utiliza o em Eletrodos de Difus o Gasosa (EDG) visando a eletrogera o in situ de H2O2 (mecanismo via 2 el trons).
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Elektrosynthese von Alkoholen mit Gasdiffusionselektroden

Elektrosynthese von Alkoholen mit Gasdiffusionselektroden

Robson S Rocha; Marcos R V Lanza; Rodnei Bertazzoli

Verlag Unser Wissen
2024
pokkari
Ethylenglykol ist eine organische Verbindung mit zahlreichen Anwendungen in verschiedenen Bereichen der chemischen Industrie. Obwohl die bekanntesten Anwendungen als Frostschutzmittel oder in der Zusammensetzung von Hydraulikfl ssigkeiten zu finden sind, ist der gr te Verbrauch dieser Verbindung in der Herstellung von ges ttigten und unges ttigten Polyesterharzen sowie Polyurethanen zu verzeichnen. Ethylenglykol oder Ethan-1,2-diol wird durch Reaktion von Ethylenoxid oder 1,2-Epoxyethan mit Wasser in Gegenwart eines Katalysators, wie verd nnter Schwefels ure, bei einer Temperatur von 60 C hergestellt, aber die Synthese von Ethylenoxid erfordert 300 C und 20 atm, damit die Reaktion eine hohe Ausbeute erreicht. In dieser Arbeit wird eine Alternative zur konventionellen Gewinnung von Ethylenoxid vorgeschlagen, bei der Ethylenglykol in einem w ssrigen Elektrolyten gebildet wird. Die wichtigsten Ergebnisse zeigen, dass bei konstantem Strom die Elektrode mit Palladiumoxid die beste Ausbeute f r die Erzeugung von Ethylenglykol und Ethanol aufweist, mit einer besseren Selektivit t f r Ethylenglykol.
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Électrosynthèse d'alcools à l'aide d'électrodes à diffusion gazeuse

Électrosynthèse d'alcools à l'aide d'électrodes à diffusion gazeuse

Robson S Rocha; Marcos R V Lanza; Rodnei Bertazzoli

Editions Notre Savoir
2024
pokkari
L' thyl ne glycol est un compos organique ayant de vastes applications dans divers secteurs de l'industrie chimique. Bien que les applications les plus connues soient comme liquide antigel ou dans la composition de fluides hydrauliques, la plus grande consommation de ce compos est la fabrication de r sines polyester satur es et insatur es, ainsi que de polyur thanes. L' thyl ne glycol, ou thane-1,2-diol, est produit en faisant r agir l'oxyde d' thyl ne, ou 1,2- poxy thane, avec de l'eau en pr sence d'un catalyseur, tel que l'acide sulfurique dilu , une temp rature de 60 C, mais la synth se de l'oxyde d' thyl ne n cessite 300 C et 20 atm pour que la r action atteigne des niveaux de rendement lev s. Ce travail propose une alternative l'obtention conventionnelle de l'oxyde d' thyl ne, qui forme de l' thyl ne glycol dans un lectrolyte aqueux. Les principaux r sultats ont montr que, courant constant, l' lectrode avec l'oxyde de palladium pr sentait le meilleur rendement pour la g n ration d' thyl ne glycol et d' thanol, avec une meilleure s lectivit pour l' thyl ne glycol.
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Elettrosintesi di alcoli mediante elettrodi a diffusione gassosa

Elettrosintesi di alcoli mediante elettrodi a diffusione gassosa

Robson S Rocha; Marcos R V Lanza; Rodnei Bertazzoli

Edizioni Sapienza
2024
pokkari
Il glicole etilenico un composto organico con vaste applicazioni in vari settori dell'industria chimica. Sebbene le applicazioni pi note siano quelle come liquido antigelo o nella composizione di fluidi idraulici, il consumo maggiore di questo composto si ha nella produzione di resine poliestere sature e insature e di poliuretani. Il glicole etilenico, o etano-1,2-diolo, viene prodotto facendo reagire l'ossido di etilene, o 1,2-epossietano, con l'acqua in presenza di un catalizzatore, come l'acido solforico diluito, a una temperatura di 60 C, ma la sintesi dell'ossido di etilene richiede 300 C e 20 atm per raggiungere alti livelli di resa. Questo lavoro propone un'alternativa all'ottenimento dell'ossido di etilene in modo convenzionale, con la formazione di glicole etilenico in un elettrolita acquoso. I risultati principali hanno mostrato che, a corrente costante, l'elettrodo con ossido di palladio ha presentato la migliore resa per la generazione di glicole etilenico ed etanolo, con una migliore selettivit per il glicole etilenico.
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Electrosynthesis of alcohols using gas diffusion electrodes

Electrosynthesis of alcohols using gas diffusion electrodes

Robson S Rocha; Marcos R V Lanza; Rodnei Bertazzoli

Our Knowledge Publishing
2024
pokkari
Ethylene glycol is an organic compound with vast applications in various sectors of the chemical industry. Although the best known applications are as an anti-freeze liquid or in the composition of hydraulic fluids, the largest consumption of this compound is in the manufacture of saturated and unsaturated polyester resins, as well as polyurethanes. Ethylene glycol, or ethane-1,2-diol, is produced by reacting ethylene oxide, or 1,2-epoxyethane, with water in the presence of a catalyst, such as dilute sulphuric acid, at a temperature of 60 C, but the synthesis of ethylene oxide requires 300 C and 20 atm for the reaction to reach high levels of yield. This work proposes an alternative to obtaining ethylene oxide conventionally, which forms ethylene glycol in an aqueous electrolyte. The main results showed that, at constant current, the electrode with palladium oxide presented the best yield for the generation of ethylene glycol and ethanol, with better selectivity for ethylene glycol.
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Hydromel

Hydromel

João Paulo Niemes; Marcos R Da Rosa; Maria L Felsner

Editions Notre Savoir
2025
pokkari
Ce travail pr sente le d veloppement et l'optimisation de m thodologies pour la production et la caract risation d'hydromel pr par partir de diff rents types de miel et de fermentations. En outre, des caract risations du pH, de l'acidit , de l'humidit , du degr Brix, de la teneur en cendres et en humidit et de la teneur totale en sucres r ducteurs des miels utilis s ont t r alis es, permettant de les comparer entre eux et d'analyser l'influence de leur origine g ographique. Les m mes tests ont t appliqu s aux hydromels pr par s, l'exception de l'humidit et de la teneur en cendres, et la concentration en 5-HMF a galement t d termin e la fin des fermentations, avec des valeurs moyennes comprises entre 0,210 0,041 et 0,839 0,198 g.mL-1. Ces valeurs montrent que la boisson est conforme aux normes internationales de qualit pour cet indicateur. Gr ce cette m thodologie, toutes les propri t s b n fiques du miel sont pr serv es dans l'hydromel, ce qui n'est pas le cas avec les proc d s traditionnels. Il s'agit donc d'une excellente option pour les r gions prot g es sur le plan environnemental, car les abeilles contribuent la pollinisation des fleurs et la fixation des petits agriculteurs dans les champs, assurant ainsi une meilleure r partition des revenus.
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