Book Description
This test preparation book includes five full-length exams with explanations modeled after the actual GRE in Biology. The major areas tested are cellular and molecular biology, organismal biology, ecology, evolution, and population biology. Includes a general biology review for all topics covered on the exam. For biology students bound for graduate school.
Customer Reviews:
Decent source of GRE-like questions.......2007-10-07
Ignore the review portion of this book, because it's so riddled with errors, omissions, and half-truths that it's likely to hurt your score. (Some blatant examples: On page 12, in the table of amino acid properties and structures, Asn and Gln have the same structure. Also, Figure 2.6 (Oxidation of an Aldose...) and Figure 2.15 (Negative Feedback Inhibition...) are exactly the same. That's when I stopped reading.)
However, it's worth buying a used copy just for the three practice tests/worked answers in the back. While these tests don't follow the standard GRE Biology format, the questions cover the material you're likely to see on the exam, and there seem to be fewer errors in this part of the book.
Useful with other similar guides.......2006-06-04
It is always a good idea to use several guides for GRE and similar tests preparation. This is one them. It becomes useful only when you study it along other test guides available in the market.
Full of egregious errors.......2006-03-28
1. Page 17. Isoleucine is wrong. The methyl group goes on the other side. It looks like you are showing L-allo-isoleucine, which does not, to my knowledge, occur in biology.
2. Page 17. Threonine is completely wrong. It has a methyl, not an ethyl group built on Serine. You show it having 5 carbons when it has 4.
3. Page 19. Histidine is wrong. The CH2 off the central carbon of the amino-carboxyl end is shown attached to the wrong carbon atom in the pent-ring. They are showing a nonbiological isomer.
4. Page 28. List of essential amino acids is wrong. List leaves out Arginine. List doesn't even agree with the count in the paragraph. The correct number is 9, with 10 for infants.
5. Page 36. Shows Pyruvate Kinase as the end step. It's the enzyme, and Pyruvate is the product.
6. Page 36. Dihydroxyacetone, not diydroxyacetane.
7. Page 36. Dihydroxyacetone phosphate, not just dihydroxyacetone.
9. Page 36. Phosphoenolpyruvate, not phosphoenalpyruvate.
That's as far as I've read in detail so far. Forgive me, but this book looks thrown together in pretty slapdash fashion. I suppose it's a bit amusing to be kept on ones toes while reviewing material by looking for errors, but I hope nobody is expecting this book to be correct.
WORST review book........2004-12-06
This was far and away the absolute worst review book I have ever seen for anything. It was full of poorly worded questions with even worse answer explanations. Tons of spelling and grammatical errors and other mistakes, like an answer being listed with the wrong letter. Is the letter or the answer correct? Who knows? These people need an editor, or need to go back to grade school. I can't believe they publish this book without spell checking it. Very frustrating to attempt to study out of this. Completely useless and a waste of valuable study time.
Horrible horrible horrible book.......2004-11-12
I don't even know where to begin with this book. Its written in granny print so just because the book looks huge and full of information its because the font is big enough for you to read from 10 feet away. Has very little information and this is evident when you start taking the "practice" exams in the back of the book. Sure they explain the answers but you wouldn't be able to find any of them in their so called "comprehensive" review. The practice tests are full of spelling, grammar, and answer errors. The tests don't even closely resemble the format of the GRE practice book. In the practice book from ETS there are approximately 40 questions based on data analysis, the tests in this study book contain 4. This book was a rip-off. Shame on the publisher for releasing such an unrefined piece of crap.
Average customer rating:
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Inorganic chemistry;: A guide to advanced study,
R. B Heslop
Manufacturer: Elsevier Pub. Co
ProductGroup: Book
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ASIN: B0006AXVHI |
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- Algorithms for Linear-quadratic Optimization
|
Algorithms for Linear-quadratic Optimization (Pure and Applied Mathematics)
Vasile Sima
Manufacturer: Chapman & Hall/CRC
ProductGroup: Book
Binding: Hardcover
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ASIN: 0824796128 |
Book Description
This textbook offers theoretical, algorithmic and computational guidelines for solving the most frequently encountered linear-quadratic optimization problems. It provides an overview of recent advances in control and systems theory, numerical line algebra, numerical optimization, scientific computations and software engineering.
Customer Reviews:
Algorithms for Linear-quadratic Optimization.......2002-01-24
2.1.1 Newton's method 98
2.1.2 Stabilization methods 101
2.2 Computation of Real Schur Form and Invariant Subspaces 105
2.2.1 Basic definitions and properties 105
2.2.2 Preprocessing algorithms 114
2.2.3 The QR algorithm 118
2.2.4 Real Schur form computation and ordering 135
2.3 Solving Sylvester and Lyapunov Equations 143
2.3.1 Solving Sylvester equations 144
2.3.2 Solving Lyapunov equations 159
2.3.3 Solving stable non-negative definite Lyapunov equations 162
2.4 Stabilization Algorithms 174
2.4.1 Full stabilization algorithms 174
2.4.2 Partial stabilization algorithms 177
2.5 Newton-Based Riccati Solvers 179
2.5.1 Algorithmic templates 180
2.5.2 Computational issues 183
2 5.3 Applicability and limitations 186
References 191
3 Schur and Generalized Schur Algorithms 197
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Numerical Optimization: Theoretical and Practical Aspects
J. Frédéric Bonnans ,
Jean Charles Gilbert ,
Claude Lemaréchal , and
Claudia A. Sagastizábal
Manufacturer: Springer
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Numerical Optimization (Springer Series in Operations Research and Financial Engineering)
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Nonlinear Optimization
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Monte Carlo Statistical Methods (Springer Texts in Statistics)
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Nonlinear Programming
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Algorithms and Computation: 17th International Symposium, ISAAC 2006, Kolkata, India, December 18-20, 2006, Proceedings (Lecture Notes in Computer Science)
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Parallel and Distributed Processing and Applications: 4th International Symposium, ISPA 2006, Sorrento, Italy, December 4-6, 2006, Proceedings (Lecture Notes in Computer Science)
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Approximation Algorithms
ASIN: 3540001913 |
Book Description
Just as in its 1st edition, this book starts with illustrations of the ubiquitous character of optimization, and describes numerical algorithms in a tutorial way. It covers fundamental algorithms as well as more specialized and advanced topics for unconstrained and constrained problems. Most of the algorithms are explained in a detailed manner, allowing straightforward implementation. Theoretical aspects of the approaches chosen are also addressed with care, often using minimal assumptions.
This new edition contains computational exercises in the form of case studies which help understanding optimization methods beyond their theoretical, description, when coming to actual implementation. Besides, the nonsmooth optimization part has been substantially reorganized and expanded.
Average customer rating:
- a good survey with a few omissions
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The Quadratic Assignment Problem: Theory and Algorithms (Combinatorial Optimization)
E. Cela
Manufacturer: Springer
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Binding: Hardcover
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ASIN: 0792348788 |
Book Description
The quadratic assignment problem (QAP) is a classical combinatorial optimization problem with numerous applications in facility location, scheduling, manufacturing, VLSI design, statistical data analysis, etc. The QAP is an extremely hard problem from both theoretical and practical points of view: 1) The QAP is NP-hard to solve to optimality and to approximate within a constant approximation ratio, and 2) QAP instances of size larger than 22 are still considered intractable. Hence, the QAP is in effect a problem that has yet to be solved.
This volume presents a general overview of the most studied aspects of the QAP, as well as outlining a number of research directions which currently seem to be promising. The book gives a systematic presentation of various results scattered in the literature, such as: bounding techniques and exact solution methods, linearisations, heuristic approaches and computational complexity. Some more recent research directions discussed in detail in the book are the asymptotic behaviour of the QAP and restricted versions of the problem: in particular, polynomially solvable and provably hard cases of the QAP.
Audience: This volume will be of interest to researchers and students interested in the quadratic assignment problem and to practitioners who face the QAP and wish to better understand this problem in its inherent complexity.
Customer Reviews:
a good survey with a few omissions.......2000-06-03
This monograph is a very good survey of the QAP and its variations. The treatment is however far from complete. The exact method section excludes a lot of recent developments including RLT of Sherali and Adams. Recent results on polyhedral studies into the QAP polytope are missing. The heuristic methods is skinny and is missing neural network methods. Certain QAP variations such as placement problem are not covered. A chapter on QAP applications would have been helpful.
Nevertheless, it provides a very good overview of a very important NP-hard problem: QAP
Book Description
This digital document is a journal article from European Journal of Operational Research, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
In this paper we consider the practical implementation of the disaggregated simplicial decomposition (DSD) algorithm for the traffic assignment problem. It is a column generation method that at each step has to solve a huge number of quadratic knapsack problems (QKP). We propose a Newton-like method to solve the QKP when the quadratic functional is convex but not necessarily strictly. Our O(n) algorithm does not improve the complexity of the current methods but extends them to a more general case and is better suited for reoptimization and so a good option for the DSD algorithm. It also allows the solution of many QKP's simultaneously in a vectorial or parallel way.
Book Description
This digital document is a journal article from European Journal of Operational Research, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
In this paper, S. Zhang's [Eur. J. Oper. Res. 116 (1999) 607] new and more flexible criss-cross type algorithms (with LIFO and most-often-selected-variable pivot rules) are generalized for linearly constrained convex primal-dual quadratic programming problems. These criss-cross type algorithms are different from the one described in Klafszky and Terlaky [Math. Oper. und Stat. Ser. Optim. 24 (1992) 127]. Even though the finiteness proof of these new criss-cross type algorithms is similar to the original one for the algorithm of Klafszky and Terlaky (in the sense that both these proofs are based on the orthogonality theorem), more cases have to be considered due to the flexibility of pivot (LIFO/most-often-selected-variable) rules, which requires a deeper and more careful analysis. When the primal-dual problem is a linear programming problem (no quadratic terms in the objective function), the structure of the corresponding linear complementarity problem is simpler (i.e. the matrix of the problem is skew-symmetric). For such problem pairs, our proof of finiteness simplifies to the proof of Illes and Meszaros' [Yugoslav J. Oper. Res. 11 (2001) 17] and provides a new finiteness proof for S. Zhang's criss-cross type algorithms.
Amazon.com
Describing Umberto Eco as a writer is like describing the platypus as an animal. What do readers expect when they see the author's name on a book jacket? It's a tricky question to answer, given his range and versatility: he has produced studies of semiotics, children's books, medieval history, essays on contemporary culture, and, of course, novels--most notably The Name of the Rose and The Island of the Day Before. So first, a word of warning. Anyone familiar with Eco the novelist or essayist might well be dismayed by Kant and the Platypus, for this new book returns to his preoccupations of the 1960s and 1970s--to semiotics and cognitive semantics. As such, it can be a daunting volume (the initial chapter, for example, riffs on the numerous philosophical concepts of being). And second, a word of encouragement: this is a wonderful engagement with the issues of language itself. Even as he beckons the reader into one linguistic thicket after another, Eco always keeps a commonsensical perspective, using stories to explicate the knottiest concepts.
Why did Marco Polo describe the rhinoceros as a type of unicorn? Why couldn't 18th-century observers figure out how to classify the duck-billed platypus? Given a dictionary or encyclopedia definition of a mouse, how easy would it be to identify one if we had never seen one before? These are some of the examples that Eco uses to explore the ways in which we see and describe the world--the ways, that is, in which cultures develop taxonomies. If you want to know "why we can tell an elephant from an armadillo," or why mirrors do not in fact reverse images, this book will tell you. In fact, it will also tell you why you know what I am talking about when I say "this book." Got it? No? Then get it. --Burhan Tufail
Book Description
How do we know a cat is a cat? And why do we call it a cat? How much of our perception of things is based on cognitive ability, and how much on linguistic resources? Here, in six remarkable essays, Umberto Eco explores in depth questions of reality, perception, and experience. Basing his ideas on common sense, Eco shares a vast wealth of literary and historical knowledge, touching on issues that affect us every day. At once philosophical and amusing, Kant and the Platypus is a tour of the world of our senses, told by a master of knowing what is real and what is not.
Customer Reviews:
Verbose beyond Cuteness.......2005-07-25
Dont get me wrong, Im generally big on Eco, not only his novels, but also the other essay books and Travels in Hyperreality really was an eye opener in my intellectual development. But Kant and the Platypus was a real disappointment. First, the reference to Kant is rather misleading, for Kant's work is reviewed rather summerally and reduced to an absurdity. Kant's categories of cognition are not geared towards semiotics as such, but towards formal logical operations, the space time structure of thinking. To say that the Kantian categories fall short of an analysis of meaning is to suggest that the faucet was deficient in putting out the fire at Macy's. Second, to say the perceptual categories of every day meaning are negotiated contracts with a community of parlants, does not require almost 400 pages. The essays are like pastries oversaturated with sacharine. After the initial taste or two, u just feel like putting it down. It was a labor to honor the man by finishing the book.
Philosophy alive.......2004-04-26
I read the review of Simon Blackburn trashing the book: Eco made a few mistakes concerning the two dogmas of empiricism (he confused Davidson's work with Quine's first dogma). So I am sure many readers hesitated after a review by such a rigorous big gun thinker as Blackburn.
When I started reading the book I was taken aback by the combination of depth and the vividness of the style. Eco is sprightly and alive, something that cannot be said of many philosophers dealing with the subject of categories.
The notion of categories is not trivial: you need a simple conditional prior to identify an object; it is a simple mathematical fact. You need to know what a table is to see it in the background separated from its surroundings. You need to know what a face is so when it rotates you know it is still the same face. Computers have had a hard time with such pattern recognition. A PRIOR category is a necessity. This was Kant's intuition (the so-called "rationalism"). This is also the field of semiotics as initially conceived. Eco took it to greater levels with his notion of what I would call in scientific language a compression, a "simplifation". This leads to the major problem we face today: what if the act of compressing is arbitrary?
Not just very deep but it is a breath of fresh air to see such a philosophical discussion nondull, nondry, alive!
Akin to a TV show; a layman's view of semiotics.......2000-04-01
This is a layman's introduction to semiotics. These essays make me feel as if I were watching a TV show (probably the Roseanne show) on semiotics. Where is the intellectual substance I ask? When have semioticians given up the pursuit of semiotic research merely to be branded as "semioticians for the masses"?
Well done Alastair McEwen (Translator).......1999-12-17
Alastair McEwen (Translator) makes this book the gem that it is. If it weren't for Alastair McEwen (Translator) this book might suffer from a mundane translation. Yet you need not fear, Alastair McEwen (Translator) has done a superior job.
What is a great book?.......1999-12-06
Eco dazzles us with this great work on cognition and language ... What is a platypus? If X is a platypus and Y is a platypus but X
<> Y, then can we legitimately call both X and Y platypuses? Not all platypuses are the same .... Similarly, what is a book? Kant and the Platypus is a book and a trashy novel is a book but they are not the same. In fact, this is not just a book but a great book!
Book Description
This digital document is an article from World Literature Today, published by University of Oklahoma on September 22, 2000. The length of the article is 837 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
Citation Details
Title: Kant and the Platypus: Essays on Language and Cognition.(Review)
Author: Rocco Capozzi
Publication:
World Literature Today (Refereed)
Date: September 22, 2000
Publisher: University of Oklahoma
Volume: 74
Issue: 4
Page: 877
Article Type: Book Review
Distributed by Thomson Gale
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