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Materias / palabras clave: Hamilton–Jacobi equation; Algorithm; Curvature; Mathematics; Mean curvature flow; Function (biology); Conservation law; Mean curvature; Mathematical analysis; Geometry; Evolutionary biology; Biology

Materias / palabras clave: Anxiety; Citation; Psychology; Hamilton Anxiety Rating Scale; Library science; Psychiatry; Computer science

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTColorimetric Method for Determination of Sugars and Related SubstancesMichel. DuBois, K. A. Gilles, J. K. Hamilton, P. A. Rebers, and Fred. SmithCite this: Anal. Chem. 1956, 28...

This paper models occasional, discrete shifts in the growth rate of a nonstationary series. Algorithms for inferring these unobserved shifts are presented, a byproduct of which permits estimation of parameters by maximum...

Materias / palabras clave: Rating scale; Depression (economics); Scale (ratio); Psychology; Geography; Economics; Cartography; Developmental psychology; Macroeconomics

Materias / palabras clave: Biology; Library science; State (computer science); Citation; Zoology; Computer science; Programming language

Materias / palabras clave: DNA ligase; DNA; Exonuclease; DNA polymerase; DNA clamp; Ligase chain reaction; Biology; In vitro recombination; Computational biology; Gene; Chemistry; Genetics

For all its richness and potential for discovery, qualitative research has been critiqued as too often lacking in scholarly rigor. The authors summarize a systematic approach to new concept development and grounded theor...

Cooperation in organisms, whether bacteria or primates, has been a difficulty for evolutionary theory since Darwin. On the assumption that interactions between pairs of individuals occur on a probabilistic basis, a model...

A 2.91-billion base pair (bp) consensus sequence of the euchromatic portion of the human genome was generated by the whole-genome shotgun sequencing method. The 14.8-billion bp DNA sequence was generated over 9 months fr...

Materias / palabras clave: Competition (biology); Selection (genetic algorithm); Inclusive fitness; Kin selection; Genetic Fitness; Biology; Darwinism; Wright; Mathematical economics; Social evolution; Replica; Evolutionary biology

Materias / palabras clave: Series (stratigraphy); Geology; Paleontology

The construction of a depression rating scale designed to be particularly sensitive to treatment effects is described. Ratings of 54 English and 52 Swedish patients on a 65 item comprehensive psychopathology scale were u...

Abstract A quantal system in an eigenstate, slowly transported round a circuit C by varying parameters R in its Hamiltonian Ĥ(R), will acquire a geometrical phase factor exp{iγ(C)} in addition to the familiar dynamical...

Materias / palabras clave: Ab initio; Hamiltonian (control theory); Basis set; Plane wave; Statistical physics; Ab initio quantum chemistry methods; Density functional theory; Electronic structure; Phonon; Degrees of freedom (physics and chemistry...

The development ofa 2 l-item self-report inventory for measuring the severity of anxiety in psychiat-ric populations i described. The initial item pool f86 items was drawn from three preexisting scales: the Anxiety Check...

The formal relationship between ultrasoft (US) Vanderbilt-type pseudopotentials and Bl\"ochl's projector augmented wave (PAW) method is derived. It is shown that the total energy functional for US pseudopotentials can be...