Kirjojen hintavertailu. Mukana 11 539 418 kirjaa ja 12 kauppaa.
Kirja.info

Kirjahaku

Etsi kirjoja tekijän nimen, kirjan nimen tai ISBN:n perusteella.

1000 tulosta hakusanalla Rashed Hasan Faap

The Development of Arabic Mathematics: Between Arithmetic and Algebra

The Development of Arabic Mathematics: Between Arithmetic and Algebra

R. Rashed

Springer
1994
sidottu
An understanding of developments in Arabic mathematics between the IXth and XVth century is vital to a full appreciation of the history of classical mathematics. This book draws together more than ten studies to highlight one of the major developments in Arabic mathematical thinking, provoked by the double fecondation between arithmetic and the algebra of al-Khwarizmi, which led to the foundation of diverse chapters of mathematics: polynomial algebra, combinatorial analysis, algebraic geometry, algebraic theory of numbers, diophantine analysis and numerical calculus. Thanks to epistemological analysis, and the discovery of hitherto unknown material, the author has brought these chapters into the light, proposes another periodization for classical mathematics, and questions current ideology in writing its history. Since the publication of the French version of these studies and of this book, its main results have been admitted by historians of Arabic mathematics, and integrated into their recent publications. This book is already a vital reference for anyone seeking to understand history of Arabic mathematics, and its contribution to Latin as well as to later mathematics. The English translation will be of particular value to historians and philosophers of mathematics and of science.
Vertaile hintoja
Seasonal Flood Forecasts and Warning Response Opportunities

Seasonal Flood Forecasts and Warning Response Opportunities

Md. Rashed Chowdhury

Springer International Publishing AG
2022
sidottu
This book explores the feasibility of using El Niño-Southern Oscillation (ENSO)-based forecasts and early warning systems to prevent losses from floods and droughts in Bangladesh. Despite advances in short-range flood forecasting and information dissemination systems in Bangladesh, the present system is less than satisfactory. This is due to short lead-time products, outdated dissemination networks, and lack of direct feedback from the end-user. One viable solution is to produce long-lead seasonal forecasts—the demand for which is significantly increasing in Bangladesh— and disseminate these products through appropriate channels. As observed in other regions, the success of seasonal forecasts, in contrast to short-term forecasts, depends on consensus among the participating institutions. Therefore, the primary objective of the book is to revisit and modify the framework of an ideal warning response system for issuance of consensus seasonal flood forecasts in Bangladesh. The book discusses issues related to the 5-stage Flood Forecasts, Warning, and Response System (FFWRS) and emphasizes the role of the seasonal ‘Climate Outlook Forum (COF)’ in Bangladesh. The book also identifies ways to improve forecasting and early warning systems by utilizing ENSO-based climate data and models, and discusses a comprehensive and participatory approach to seasonal flood hazard management in Bangladesh.Several successful case examples of ENSO-based seasonal forecasts and early warning systems from other ENSO-sensitive regions have been documented. The primary audience includes academics and students, government policymakers, engineers, and business leaders.
Vertaile hintoja
Estudo das tensões osmóticas sobre a viabilidade de Saccharomyces cerevisiae

Estudo das tensões osmóticas sobre a viabilidade de Saccharomyces cerevisiae

Sanjida Humayun; Rashed Noor

Edicoes Nosso Conhecimento
2023
pokkari
Com um exame pr vio das respostas celulares bacterianas contra o choque t rmico e as tens es oxidativas, a investiga o actual esfor ou-se ainda mais por explorar o impacto da influ ncia combinada da alta temperatura (44 C- 46 C) e altas concentra es de a car (dextrose e sacarose) sobre o crescimento e a flora o Saccharomyces cerevisiae SUBSC01. O crescimento celular foi medido utilizando a abordagem tradicional de estimativa da densidade ptica a 600 nm (OD600) e a contagem das unidades formadoras de col nias (UFC) nas placas de gar at 450 minutos. A transforma o subsequente na morfologia da levedura e na disposi o celular foi notada, e a reten o da viabilidade celular nas condi es de stress foi fomentada por testes pontuais. Foi observado um retardamento completo do crescimento a 45 C com as elevadas concentra es de dextrose (3,6 104 g/ml) e sacarose (1,8 105 g/ml). Notadamente, a fermenta o foi encontrada a 44 C e 45 C at 270 minutos de incuba o, a qual foi suprimida a 46 C. No seu conjunto, a investiga o actual demonstrou a resposta ao stress nas c lulas de levedura a n vel fenot pico, o que coerente com os conhecimentos existentes sobre os eventos de resposta ao stress osm tico em leveduras.
Vertaile hintoja
Studio degli stress osmotici sulla vitalità di Saccharomyces cerevisiae

Studio degli stress osmotici sulla vitalità di Saccharomyces cerevisiae

Sanjida Humayun; Rashed Noor

Edizioni Sapienza
2023
pokkari
Dopo aver esaminato le risposte cellulari dei batteri agli shock termici e agli stress ossidativi, la presente ricerca ha cercato di esplorare l'impatto dell'influenza combinata di un'elevata temperatura (44 C- 46 C) e di alte concentrazioni di zucchero (destrosio e saccarosio) sulla crescita e sulla gemmazione di Saccharomyces cerevisiae SUBSC01. La crescita cellulare stata misurata utilizzando l'approccio tradizionale della stima della densit ottica a 600 nm (OD600) e l'enumerazione delle unit formanti colonie (CFU) sulle piastre di agar fino a 450 minuti. Sono state notate le successive trasformazioni nella morfologia del lievito e nella disposizione cellulare e il mantenimento della vitalit cellulare in condizioni di stress stato verificato con test a campione. Un ritardo completo della crescita stato osservato a 45 C con alte concentrazioni di destrosio (3,6 104 g/ml) e saccarosio (1,8 105 g/ml). In particolare, la gemmazione del lievito stata riscontrata a 44 C e a 45 C fino a 270 minuti di incubazione, mentre stata soppressa a 46 C. Nel complesso, la presente indagine ha dimostrato la risposta allo stress nelle cellule di lievito a livello fenotipico, coerentemente con le conoscenze esistenti sugli eventi di risposta allo stress osmotico nei lieviti.
Vertaile hintoja
Etude des stress osmotiques sur la viabilité de Saccharomyces cerevisiae

Etude des stress osmotiques sur la viabilité de Saccharomyces cerevisiae

Sanjida Humayun; Rashed Noor

Editions Notre Savoir
2023
pokkari
Apr s avoir examin les r ponses cellulaires bact riennes aux chocs thermiques et aux stress oxydatifs, la pr sente recherche s'est efforc e d'explorer l'impact de l'influence combin e d'une temp rature lev e (44 C- 46 C) et de concentrations lev es de sucre (dextrose et saccharose) sur la croissance et le bourgeonnement de Saccharomyces cerevisiae SUBSC01. La croissance cellulaire a t mesur e en utilisant l'approche traditionnelle d'estimation de la densit optique 600nm (OD600) et le d nombrement des unit s formant colonies (UFC) sur les plaques de g lose jusqu' 450 minutes. Des transformations ult rieures de la morphologie de la levure et de l'arrangement cellulaire ont t constat es, et la conservation de la viabilit cellulaire dans les conditions de stress a t confirm e par des tests ponctuels. Un retard de croissance complet a t observ 45 C avec les concentrations lev es de dextrose (3,6 104 g/ml) et de saccharose (1,8 105 g/ml). En particulier, le bourgeonnement de la levure a t trouv 44 C et 45 C jusqu' 270 minutes d'incubation, et a t supprim 46 C. Dans l'ensemble, l' tude actuelle a d montr la r ponse au stress dans les cellules de levure au niveau ph notypique, ce qui est coh rent avec les connaissances existantes sur les v nements de r ponse au stress osmotique chez les levures.
Vertaile hintoja
Untersuchung des osmotischen Stresses auf die Lebensfähigkeit von Saccharomyces cerevisiae

Untersuchung des osmotischen Stresses auf die Lebensfähigkeit von Saccharomyces cerevisiae

Sanjida Humayun; Rashed Noor

Verlag Unser Wissen
2023
pokkari
Nach einer vorangegangenen Untersuchung der zellul ren Reaktionen von Bakterien auf Hitzeschock und oxidativen Stress wurde in der aktuellen Studie der kombinierte Einfluss von hohen Temperaturen (44 C-46 C) und hohen Zuckerkonzentrationen (Dextrose und Saccharose) auf das Wachstum und die Knospung von Saccharomyces cerevisiae SUBSC01 untersucht. Die Messung des Zellwachstums erfolgte mit dem traditionellen Ansatz der Sch tzung der optischen Dichte bei 600 nm (OD600) und der Ausz hlung der koloniebildenden Einheiten (KBE) auf den Agarplatten bis zu 450 Minuten. Anschlie end wurden Ver nderungen in der Hefemorphologie und der Zellanordnung festgestellt, und die Beibehaltung der Lebensf higkeit der Zellen unter den Stressbedingungen wurde durch Stichprobentests berpr ft. Eine vollst ndige Wachstumsverz gerung wurde bei 45 C mit den hohen Konzentrationen von Dextrose (3,6 104 g/ml) und Saccharose (1,8 105 g/ml) beobachtet. Bemerkenswert ist, dass die Hefeknospung bei 44 C und 45 C bis zu einer Inkubationszeit von 270 Minuten zu beobachten war, die bei 46 C unterdr ckt wurde. Insgesamt zeigte die aktuelle Untersuchung die Stressreaktion in Hefezellen auf ph notypischer Ebene, was mit dem vorhandenen Wissen ber die osmotische Stressreaktion in Hefen koh rent ist.
Vertaile hintoja
1...1112131415...50