CiteWeb

WorldWeb citation database

Publications in 1977

Page 1
Sample Selection Bias as a Specification Error (with an Application to the Estimation of Labor Supply Functions)

In this paper, I present a simple characterization of the sample selection bias problem that is also applicable to the conceptually distinct econometric problems that arise from truncated samples and from models with limited dependent variables. The problem...

Institutionalized Organizations: Formal Structure as Myth and Ceremony

Many formal organizational structures arise as reflections of rationalized institutional rules. The elaboration of such rules in modern states and societies accounts in part for the expansion and increased complexity of formal organizational structures....

DETERMINANTS OF CORPORATE BORROWING

Many corporate assets, particularly growth opportunities, can be viewed as call options. The value of such ‘real options’ depends on discretionary future investment by the firm. Issuing risky debt reduces the present market value of a firm holding...

Population biology of plants

John L. Harper, Begon, M.Harper, J.L.Towsend, C.R.

Telling more than we can know: Verbal reports on mental processes

Evidence is reviewed which suggests that there may be little or no direct intro­ spective access to higher order cognitive processes. Subjects are sometimes (a) unaware of the existence of a stimulus that importantly influenced a response, (b) unaware...

Language, counter-memory, practice : selected essays and interviews

Michel Foucault, Donald F. Bouchard, Sherry Simon

Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I.

Circular (e.g. simian virus 40) and linear (e.g. λ phage) DNAs have been labeled to high specific radioactivities (>108 cts/min per μg) in vitro using deoxynucleoside [α-32P]triphosphates (100 to 250 Ci/mmol) as substrates and the nick translation...

The Population Ecology of Organizations

A population ecology perspective on organization-environment relations is proposed as an alternative to the dominant adaptation perspective. The strength of inertial pressures on organizational structure suggests the application of models that depend...

A simplification of the protein assay method of Lowry et al. Which is more generally applicable

Some recent modifications of the protein assay by the method of Lowry, Rosebrough, Farr, and Randall (1951, J. Biol. Chem. 193, 265-275) have been reexamined and altered to provide a consolidated method which is simple, rapid, objective, and more generally...

Asymptotic Freedom in Parton Language

A novel derivation of the Q2 dependence of quark and gluon densities (of given helicity) as predicted by quantum chromodynamies is presented. The main body of predictions of the theory for deep-inleastic scattering on either unpolarizedor polarized targets...

THE [14C]DEOXYGLUCOSE METHOD FOR THE MEASUREMENT OF LOCAL CEREBRAL GLUCOSE UTILIZATION: THEORY, PROCEDURE, AND NORMAL VALUES IN THE CONSCIOUS AND ANESTHETIZED ALBINO RAT1

— A method has been developed for the simultaneous measurement of the rates of glucose consumption in the various structural and functional components of the brain in vivo. The method can be applied to most laboratory animals in the conscious state....

Features of Similarity

The metric and dimensional assumptions that underlie the geometric representation of similarity are questioned on both theoretical and empirical grounds. A new set-theoretical approach to similarity is developed in which objects are represented as collections...

Exact Stochastic Simulation of Coupled Chemical Reactions

Daniel T. Gillesple, Danlel T. Gillespie

Formulation and estimation of stochastic frontier production function models

Previous studies of the so-called frontier production function have not utilized an adequate characterization of the disturbance term for such a model. In this paper we provide an appropriate specification, by defining the disturbance term as the sum...

THE INTERNATIONALIZATION PROCESS OF THE FIRM-A MODEL OF KNOWLEDGE DEVELOPMENT AND INCREASING FOREIGN MARKET COMMITMENTS

The Internationalization Process of the Firm - A Model of Knowledge Development and Increasing Foreign Market Commitments

Abstract interpretation: a unified lattice model for static analysis of programs by construction or approximation of fixpoints

A program denotes computations in some universe of objects. Abstract interpretation of programs consists in using that denotation to describe computations in another universe of abstract objects, so that the results of abstract execution give some information...

Solutions of ill-posed problems

John B. Bell, V. Y. Arsenin

Rules Rather than Discretion: The Inconsistency of Optimal Plans

Even if there is an agreed-upon, fixed social objective function and policymakers know the timing and magnitude of the effects of their actions, discretionary policy, namely, the selection of that decision which is best, given the current situation and...

A new method for sequencing DNA.

Maxam Am, Walter Gilbert

A universal algorithm for sequential data compression

A universal algorithm for sequential data compression is presented. Its performance is investigated with respect to a nonprobabilistic model of constrained sources. The compression ratio achieved by the proposed universal code uniformly approaches the...

A SCALING METHOD FOR PRIORITIES IN HIERARCHICAL STRUCTURES

The purpose of this paper is to investigate a method of scaling ratios using the principal eigenvector of a positive pairwise comparison matrix. Consistency of the matrix data is defined and measured by an expression involving the average of the nonprincipal...

Toward an Experimental Ecology of Human Development.

A broader approach to research in hu- j man development is proposed that focuses on the pro- \ gressive accommodation, throughout the life span, between the growing human organism and the changing environments in which it actually lives and grows. \ The...

Peptide mapping by limited proteolysis in sodium dodecyl sulfate and analysis by gel electrophoresis.

A rapid and convenient method for peptide mapping of proteins has been developed. The technique, which is especially suitable for analysis of proteins that have been isolated from gels containing sodium dodecyl sulfate, involves partial enzymatic proteolysis...

Theory of dynamic critical phenomena

P. C. Hohenberg, B. I. Halperin

Characteristics of the Microplate Method of Enzyme-Linked Immunosorbent Assay for the Detection of Plant Viruses

SummarySome characteristics of a microplate method for the detection and assay of plant viruses using enzyme-labelled antibodies are described. The method enabled the highly sensitive detection of a number of morphologically different viruses in purified...

Quantum mechanics : non-relativistic theory

E. M. (Evgeniĭ Mikhaĭlovich) Lifshit︠s︡, J. B. Sykes, John B. Bell

Characteristics of a human cell line transformed by DNA from human adenovirus type 5.

SummaryHuman embryonic kidney cells have been transformed by exposing cells to sheared fragments of adenovirus type 5 DNA. The transformed cells (designated 293 cells) exhibited many of the characteristics of transformation including the elaboration of...

INFORMATIONAL ASYMMETRIES, FINANCIAL STRUCTURE, AND FINANCIAL INTERMEDIATION

NUMEROUS MARKETS ARE characterized by informational differences between buyers and sellers. In financial markets, informational asymmetries are particularly pronounced. Borrowers typically know their collateral, industriousness, and moral rectitude better...

Design and analysis of randomized clinical trials requiring prolonged observation of each patient. II. analysis and examples.

Part I of this report appeared in the previous issue (Br. J. Cancer (1976) 34,585), and discussed the design of randomized clinical trials. Part II now describes efficient methods of analysis of randomized clinical trials in which we wish to compare the...

High density lipoprotein as a protective factor against coronary heart disease: the Framingham Study.

Starting in 1968 2815 men and women from the Framingham Heart study cohort aged 49-82 years had their lipids and lipoproteins characterized after an overnight fast; measurements included fasting triglycerides and high-density lipoproteins (HDL) low-density...

Principles of Isotope Geology

Isotope geology has evolved into a highly diversified discipline in the Earth Sciences capable of contributing significantly to the solution of a wide variety of problems. The time has come, therefore, to introduce this subject into the curriculum in...

Variable structure systems with sliding modes

Variable structure systems consist of a set of continuous subsystems together with suitable switching logic. Advantageous properties result from changing structures according to this switching logic. Design and analysis for this class of systems are surveyed...

Screening lambdagt recombinant clones by hybridization to single plaques in situ.

A rapid, direct method for screening single plaques of Agt recombinant phage is described. The method allows at least 106 clones to be screened per day and simplifies physical containment of recombinants.

MECHANISMS OF SUCCESSION IN NATURAL COMMUNITIES AND THEIR ROLE IN COMMUNITY STABILITY AND ORGANIZATION

The sequence of species observed after a relatively large space is opened up is a consequence of the following mechanisms. "Opportunist" species with broad dispersal powers and rapid growth to maturity usually arrive first and occupy empty space. These...

DEBT AND TAXES

Merton H. Miller

An analysis of the variation of ocean floor bathymetry and heat flow with age

Two models, a simple cooling model and the plate model, have been advanced to account for the variation in depth and heat flow with increasing age of the ocean floor. The simple cooling model predicts a linear relation between depth and t , and heat...

Self-organization in nonequilibrium systems

Grégoire Nicolis, Ilya Prigogine

Computer Methods for Mathematical Computations

George E. Forsythe, Michael A. Malcolm

Dynamic Programming and Stochastic Control

Dimitri P. Bertsekas, Chelsea C. White

Post-embryonic cell lineages of the nematode, Caenorhabditis elegans.

The number of nongonadal nuclei in the free-living soil nematode Caenorhabditis elegans increases from about 550 in the newly hatched larva to about 810 in the mature hermaphrodite and to about 970 in the mature male. The pattern of cell divisions which...

A pattern language : towns, buildings, construction

Christopher Alexander, Sara Ishikawa, Murray Silverstein, Max Jacobson, Ingrid Fiksdahl-King, S. M. Angel

Consistency in Networks of Relations

Artificial intelligence tasks which can be formulated as constraint satisfaction problems, with which this paper is for the most part concerned, are usually solved by backtracking. By examining the thrashing behavior that nearly always accompanies backtracking,...

Forest before trees: The precedence of global features in visual perception ☆

The idea that global structuring of a visual scene precedes analysis of local features is suggested, discussed, and tested. In the first two experiments subjects were asked to respond to an auditorily presented name of a letter while looking at a visual...

A trophic state index for lakes

A numerical trophic state index for lakes has been developed that incorporates most lakes in a scale of 0 to 100. Each major division ( 10, 20, 30, etc. ) represents a doubling in algal biomass. The index number can bc calculated from...

Noninvasive, infrared monitoring of cerebral and myocardial oxygen sufficiency and circulatory parameters.

The relatively good transparency of biological materials in the near infrared region of the spectrum permits sufficient photon transmission through organs in situ for the monitoring of cellular events. Observations by infrared transillumination in the...

Synthesis of electrically conducting organic polymers: halogen derivatives of polyacetylene, (CH)x

When silvery films of the semiconducting polymer, ‘polyacetylene’, (CH), are exposed to chlorine, bromine, or iodine vapour, uptake of halogen occurs, and the conductivity increases markedly (over seven orders of magnitude in the case of iodine) to...

A fast string searching algorithm

An algorithm is presented that searches for the location, “il” of the first occurrence of a character string, “pat,” in another string, “string.” During the search operation, the characters of pat are matched starting with the last character...

A rapid, sensitive, and versatile assay for protein using Coomassie brilliant blue G250.

An assay for proteins in solution is described that depends on the conversion of Coomassie brilliant blue G250 in dilute acid from a brownish-orange to an intense blue color. As soon as the dye solution is mixed with a protein sample, the absorbance of...

Nonphysical sampling distributions in Monte Carlo free-energy estimation: Umbrella sampling

The free energy difference between a model system and some reference system can easily be written as an ensemble average, but the conventional Monte Carlo methods of obtaining such averages are inadequate for the free-energy case. That is because the...

Reversible conductivity changes in discharge‐produced amorphous Si

A new reversible photoelectronic effect is reported for amorphous Si produced by glow discharge of SiH4. Long exposure to light decreases both the photoconductivity and the dark conductivity, the latter by nearly four orders of magnitude. Annealing above...

An implicit technology of generalization

Trevor F. Stokes, Donald M. Baer

Biogeochemistry of a forested ecosystem

Gene E. Likens, F. Herbert Bormann

Remembrance of things parsed: Story structure and recall ☆

An analysis of the underlying structure of simple stories is presented. It is claimed that this type of representation of stories is used to form schemata which guide encoding and retrieval. A type of tree structure containing basic units and their connections...

Numerical analysis of blood flow in the heart

The flow pattern of blood in the heart is intimately connected with the performance of the heart valves. This paper extends previous work on the solution of the Navier-Stokes equations in the presence of moving immersed boundaries which interact with...

The work function of the elements and its periodicity

A new compilation, based on a literature search for the period 1969–1976, is made of experimental data on the work function. For these 44 elements, preferred values are selected on the basis of valid experimental conditions. Older values, which are...

Asset returns and inflation

Eugene F. Fama, G. William Schwert

Absorbing boundary conditions for the numerical simulation of waves

In practical calculations, it is often essential to introduce artificial boundaries to limit the area of computation. Here we develop a systematic method for obtaining a hierarchy of local boundary ...

Scripts, plans, goals, and understanding : an inquiry into human knowledge structures

For both people and machines, each in their own way, there is a serious problem in common of making sense out of what they hear, see, or are told about the world. The conceptual apparatus necessary to perform even a partial feat of understanding is formidable...

The Determination of Financial Structure: The Incentive-Signalling Approach

The Modigliani-Miller theorem on the irrelevancy of financial structure implicitly assumes that the market possesses full information about the activities of firms. If managers possess inside information, however, then the choice of a managerial incentive...

An Algorithm for Finding Best Matches in Logarithmic Expected Time

Jerome H. Friedman, Jon Louis Bentley, Raphael A. Finkel

Crop Salt Tolerance–Current Assessment

An extensive literature review of all available salt tolerance data was undertaken to evaluate the current status of our knowledge of the salt tolerance of agricultural crops. In general, crops tolerate salinity up to a threshold level above which yields...

Binding of soluble form of fibroblast surface protein, fibronectin, to collagen

Fibronectin, a plasma protein immunologically identical with a major surface protein of normal fibroblasts, was found to bind to collagen and gelatin. A solid phase enzyme immunoassay was used for the binding tests. Collagen, gelatin or various control...

Optimal foraging: A selective review of theory and tests

Beginning with Emlen (1966) and MacArthur and Pianka (1966) and extending through the last ten years, several authors have sought to predict the foraging behavior of animals by means of mathematical models. These models are very similar,in that they all...

The natural history of chronic airflow obstruction.

A prospective epidemiological study of the early stages of the development of chronic obstructive pulmonary disease was performed on London working men. The findings showed that forced expiratory volume in one second (FEV1) falls gradually over a lifetime,...

Simultaneous single isotope radioenzymatic assay of plasma norepinephrine, epinephrine and dopamine

Modification of the original single isotope radioenzymatic assay of Passon and Peuler (1) permits the direct and simultaneous analysis of norepinephrine, epinephrine and dopamine in plasma samples of 50 μl or less. Plasma or cerebrospinal fluid without...

Normative influences on altruism

Publisher SummaryCentral to the theoretical model of personal normative influences on altruism presented in this chapter is the idea that altruistic behavior is causally influenced by feelings of moral obligation to act on one's personally held norms....

Forecasting economic time series

Clive W. J. Granger, Paul Newbold

The Intuitive Psychologist And His Shortcomings: Distortions in the Attribution Process1

Publisher SummaryAttribution theory is concerned with the attempts of ordinary people to understand the causes and implications of the events they witness. It deals with the “naive psychology” of the “man in the street” as he interprets his own...

Primary bioassay of human tumor stem cells.

A simple method has been developed to support human tumor stem cell colony growth in soft agar. The technique appears suitable for culture of a variety of neoplasms of differing histopathology. Tumor stem cell colonies arising from different types of...

Dummy Endogenous Variables in a Simultaneous Equation System

This paper considers the formulation and estimation of simultaneous equation models with both discrete and continuous endogenous variables. The statistical model proposed here is sufficiently rich to encompass the classical simultaneous equation model...

In situ detection of mycoplasma contamination in cell cultures by fluorescent Hoechst 33258 stain.

A simple, fast, and easily reproducible routine laboratory technique for detecting mycoplasma contamination in cell cultures is reported. Cells grown on a coverslip are fixed directly with Carnoy's, air-dried, stained with DNA-specific fluorescent Hoechst...

Blood flow measurements with radionuclide-labeled particles

SummaryWhen appropriately and correctly applied, the 0155 microsphere technique is relatively simple and allows for definition of arteriovenous anastomoses as well as the measurement of organ blood flows and distribution of blood flow within those 3 organs....

Next »
1 2 3 4 5 6 ... Last

© 2016 CiteWeb.info — WorldWeb citation database

Up ↑