Author: Eduardo CalabresePublisher:
ISBN: 9788837115777
Category : Computers
Languages : it
Pages : 160
Book Description
Temi d'esame di fondamenti di informatica (con esempi di soluzione in C + +). Aggiornati a luglio 2005
Author: Eduardo CalabresePublisher:
ISBN: 9788837115777
Category : Computers
Languages : it
Pages : 160
Book Description
Temi d'esame di fondamenti di informatica. Con esempi di soluzione in C++
Author: Eduardo CalabresePublisher:
ISBN: 9788837112134
Category : Computers
Languages : it
Pages : 56
Book Description
Fondamenti di Informatica. Temi d'esame risolti
Author: D. BragaPublisher: Società Editrice Esculapio
ISBN: 8835861500
Category : Computers
Languages : it
Pages : 167
Book Description
Questo testo raccoglie, raggruppati per argomento, una serie di esercizi assegnati nei temi d’esame dei corsi di Informatica 1, Informatica A e Fondamenti di Informatica al Politecnico di Milano, per i corsi di laurea in Ingegneria Informatica, Ingegneria dell’Automazione e Ingegneria Matematica. Il testo si rivolge principalmente agli studenti dei corsi erogati per la Laurea di Primo Livello (nelle discipline dell’Ingegneria dell’Informazione). Più in generale, però, crediamo che questo testo costituisca un pratico e rapido riferimento per chi, studiando la materia, voglia vedere esempi compatti di codice che risolvono problemi relativamente semplici, ma rappresentativi delle tipiche difficoltà che si presentano nella gestione di tutte le strutture dati più classiche. Il testo include anche una breve sezione dedicata alle basi di dati relazionali e al linguaggio SQL, argomento trattato o accennato in molti corsi di informatica di base. Per quanto riguarda le soluzioni proposte, è importante sottolineare che il progetto di una soluzione, per quanto a problemi molto semplici come quelli trattati in questo volume, non produce comunque mai risultati univoci, poiché risente inevitabilmente degli stili e delle preferenze dei singoli. Gli autori dichiarano pertanto sin d’ora che soluzioni presentate sono influenzate dal loro stile. Non sono certo le uniche soluzioni corrette, dunque; anzi, in vari casi tra i commenti alle soluzioni proposte sono discusse alcune soluzioni alternative, e a volte sono riportati alcuni errori comuni. In particolare, poi, si è cercato di mostrare soluzioni ricorsive a tutti i problemi per i quali questo potesse essere fatto in modo compatto e conciso, per contribuire a convincere gli studenti che la ricorsione è un paradigma di computazione generale, e non semplicemente una modalità di scansione di alcune particolari strutture dati. Per semplicità di consultazione, in tutto il volume i testi degli esercizi, riportati così come comparivano nei temi d’esame assegnati, sono racchiusi all’interno di riquadri. Le nostre soluzioni, invece, sono liberamente impaginate tra tali riquadri. Ringraziamo Davide Barbieri, Francesco Bruschi, Alessandro Campi, Carlo Alberto Furia e Gerardo Pelosi per i consigli, le idee e i suggerimenti trasferitici nel tempo in cui questo materiale è andato accumulandosi. Il testo riserva una particolare attenzione a temi “delicati” quali la ricorsione, i record di attivazione e la memoria dinamica. Include anche una breve sezione dedicata alle basi di dati relazionali e al linguaggio SQL, argomento trattato o accennato in molti corsi di informatica di base.
Plant Genetic Conservation
Author: Nigel MaxtedPublisher: Springer Science & Business Media
ISBN: 9400914377
Category : Science
Languages : en
Pages : 462
Book Description
The recent development of ideas on biodiversity conservation was already being considered almost three-quarters of a century ago for crop plants and the wild species related to them, by the Russian geneticist N.!. Vavilov. He was undoubtedly the first scientist to understand the impor tance for humankind of conserving for utilization the genetic diversity of our ancient crop plants and their wild relatives from their centres of diversity. His collections showed various traits of adaptation to environ mental extremes and biotypes of crop diseases and pests which were unknown to most plant breeders in the first quarter of the twentieth cen tury. Later, in the 1940s-1960s scientists began to realize that the pool of genetic diversity known to Vavilov and his colleagues was beginning to disappear. Through the replacement of the old, primitive and highly diverse land races by uniform modem varieties created by plant breed ers, the crop gene pool was being eroded. The genetic diversity of wild species was equally being threatened by human activities: over-exploita tion, habitat destruction or fragmentation, competition resulting from the introduction of alien species or varieties, changes and intensification of land use, environmental pollution and possible climate change.
The Mathematics Teacher in the Digital Era
Author: Alison Clark-WilsonPublisher: Springer Science & Business Media
ISBN: 9400746385
Category : Education
Languages : en
Pages : 419
Book Description
This volume addresses the key issue of the initial education and lifelong professional learning of teachers of mathematics to enable them to realize the affordances of educational technology for mathematics. With invited contributions from leading scholars in the field, this volume contains a blend of research articles and descriptive texts. In the opening chapter John Mason invites the reader to engage in a number of mathematics tasks that highlight important features of technology-mediated mathematical activity. This is followed by three main sections: An overview of current practices in teachers’ use of digital technologies in the classroom and explorations of the possibilities for developing more effective practices drawing on a range of research perspectives (including grounded theory, enactivism and Valsiner’s zone theory). A set of chapters that share many common constructs (such as instrumental orchestration, instrumental distance and double instrumental genesis) and research settings that have emerged from the French research community, but have also been taken up by other colleagues. Meta-level considerations of research in the domain by contrasting different approaches and proposing connecting or uniting elements
The Myth of Achievement Tests
Author: James J. HeckmanPublisher: University of Chicago Press
ISBN: 022610012X
Category : Business & Economics
Languages : en
Pages : 469
Book Description
Achievement tests play an important role in modern societies. They are used to evaluate schools, to assign students to tracks within schools, and to identify weaknesses in student knowledge. The GED is an achievement test used to grant the status of high school graduate to anyone who passes it. GED recipients currently account for 12 percent of all high school credentials issued each year in the United States. But do achievement tests predict success in life? The Myth of Achievement Tests shows that achievement tests like the GED fail to measure important life skills. James J. Heckman, John Eric Humphries, Tim Kautz, and a group of scholars offer an in-depth exploration of how the GED came to be used throughout the United States and why our reliance on it is dangerous. Drawing on decades of research, the authors show that, while GED recipients score as well on achievement tests as high school graduates who do not enroll in college, high school graduates vastly outperform GED recipients in terms of their earnings, employment opportunities, educational attainment, and health. The authors show that the differences in success between GED recipients and high school graduates are driven by character skills. Achievement tests like the GED do not adequately capture character skills like conscientiousness, perseverance, sociability, and curiosity. These skills are important in predicting a variety of life outcomes. They can be measured, and they can be taught. Using the GED as a case study, the authors explore what achievement tests miss and show the dangers of an educational system based on them. They call for a return to an emphasis on character in our schools, our systems of accountability, and our national dialogue. Contributors Eric Grodsky, University of Wisconsin–Madison Andrew Halpern-Manners, Indiana University Bloomington Paul A. LaFontaine, Federal Communications Commission Janice H. Laurence, Temple University Lois M. Quinn, University of Wisconsin–Milwaukee Pedro L. Rodríguez, Institute of Advanced Studies in Administration John Robert Warren, University of Minnesota, Twin Cities
Understanding Financial Accounts
Author: OECDPublisher: OECD Publishing
ISBN: 9264281282
Category :
Languages : en
Pages : 424
Book Description
Understanding Financial Accounts seeks to show how a range of questions on financial developments can be answered with the framework of financial accounts and balance sheets, by providing non-technical explanations illustrated with practical examples.
Lines of Light
Author: Daniele Del GiudicePublisher:
ISBN:
Category : Fiction
Languages : en
Pages : 168
Book Description
The Conservation of Plant Biodiversity
Author: Otto Herzberg FrankelPublisher: Cambridge University Press
ISBN: 9780521467315
Category : Nature
Languages : en
Pages : 318
Book Description
Discusses the various options for conserving plants at the level of the gene, species and community.
Author: Edward Lear