搜索结果: 1-15 共查到“生物学 The problem”相关记录17条 . 查询时间(0.234 秒)
Combing out a tangled problem（图）
Harvard University intracellular recording nanotechnology
2019/10/23
In August 2010, Charles M. Lieber, the Joshua and Beth Friedman University Professor at Harvard University, published a paper on nanoscale devices for intracellular recording, the first nanotechnology...
Genetic testing has a data problem. New software can help（图）
Genetic testing；data problem New software
2019/10/30
In recent years, the market for direct-to-consumer genetic testing has exploded. The number of people who used at-home DNA tests more than doubled in 2017, most of them in the U.S. Some 1 in 25 Americ...
Cryo-EM images reveal how key biological machine unfolds problem proteins
Cryo-EM images biological machine proteins
2017/7/21
Hand over hand. That's how new, near-atomic resolution, 3-D snapshots show that a key biological machine unfolds a ribbon of protein through its central channel.The machine is a protein complex called...
Study Shows Animals with Larger Brains are Best Problem Solvers
Animals Larger Brains Best Problem Solvers
2016/2/22
Why did some species, such as humans and dolphins, evolve large brains relative to the size of their bodies? Why did others, such as blue whales and hippos, evolve to have brains that, compared to the...
Effectiveness in improving knowledge, practices, and intakes of “key problem nutrients” of a complementary feeding intervention developed by using linear programming: experience in Lombok, Indonesia
complementary feeding recommendation Indonesia infants and young children key problem nutrients linear programming nutrient density
2018/12/24
Background: Complementary feeding recommendations (CFRs) with the use of locally available foods can be developed by using linear programming (LP). Although its potential has been shown for planning p...
BLOOMINGTON, Ind. -- It is often better to be surrounded by copycats than innovators, according to a new Indiana University study.
Canonical dual theory applied to a Lennard-Jones potential minimization problem
Mathematical Canonical Duality Theory Mathematical Optimization Lennard-Jones Potential Minimization Problem Global Optimization
2011/8/18
Abstract: The simplified Lennard-Jones (LJ) potential minimization problem is $f(x)=4\sum_{i=1}^N \sum_{j=1,jt to} x\in \mathbb{R}^n,$ where...
In the small phylogeny problem we, are given a phylogenetic tree and gene orders of the extant species and our goal is to reconstruct all of the ancestral genomes so that the number of evolutionary op...
On the number of solutions of the discretizable molecular distance geometry problem
number solutions discretizable molecular distance geometry problem
2010/11/15
The Generalized Discretizable Molecular Distance Geometry Problem is a distance geometry problems that can be solved by a combinatorial algorithm called ``Branch-and-Prune''. It was observed empirical...
Solving the Symbol Grounding Problem: a Critical Review of Fifteen Years of Research
artificial agent commitment symbol grounding problem
2011/9/8
This article reviews eight proposed strategies for solving the Symbol Grounding Problem (SGP), which was given its classic formulation in Harnad (1990). After a concise introduction, we provide an ana...
A Praxical Solution of the Symbol Grounding Problem
artificial evolution local selection Symbol Grounding Problem
2011/9/8
This article is the second step in our research into the Symbol Grounding Problem (SGP). In a previous work, we defined the main condition that must be satisfied by any strategy in order to provide a ...
Azande Witchcraft, Epistemological Relativism and the Problem of the Criterion
Azande witchraft scepticism epistemological relativism naturalism
2011/9/5
In this paper, I discuss the problem of epistemological relativism, which I take to be the problem of providing epistemic norms with an objective rational justification, rather than the problem of arg...
Complexity and approximation of the minimum recombinant haplotype configuration problem
Haplotyping Pedigree Recombinant SNP Complexity Approximation L-reduction Positive result Negative result Bounded
2012/12/3
We study the complexity and approximation of the problem of reconstructing haplotypes from genotypes on pedigrees under the Mendelian Law of Inheritance and the minimum recombinant principle (MRHC). F...
Geobiologists Solve "Catch-22 Problem" Concerning the Rise of Atmospheric Oxygen（图）
Environmental Changes green plants carbon dioxide
2006/12/8
November 29, 2006，PASADENA, Calif.--Two and a half billion years ago, when our evolutionary ancestors were little more than a twinkle in a bacterium's plasma membrane, the process known as photosynthe...
01-Nov-2006，The University of Queensland's Centre for Companion Animal Health (CCAH) brought together the collective brainpower of some of Australia's and New Zealand's brightest animal lovers in an a...