* Alicia H. Munnell is the Director of the Center for Retirement Research at Boston College (CRR) and the Peter F. Drucker Professor in Management Sciences at Boston College’s Carroll School of Management. Steven Sass is Associate Director for Research, Mauricio Soto is a senior research associate, and Natalia Zhivan is a graduate research assistant at the CRR. This brief is adapted from a long...

A new three-degrees-of-freedom (3-DOF) translational parallel manipulator (TPM) with linear actuators, i.e., 3-CRR TPM, is first proposed. The rotation singularity analysis, the inverse kinematics, the forward kinematics, and the kinematic singularity analysis of the 3CRR TPM are then performed. The analysis shows that the proposed TPM has the following kinematic merits over previous TPMs. (1) ...

In the Escherichia coli phage-plasmid P4, two partially overlapping replicons with bipartite ori sites coexist. The essential components of the oriI replicon are the alpha and cnr genes and the ori1 and crr sites; the oriII replicon is composed of the alpha gene, with the internal ori2 site, and the crr region. The P4 alpha protein has primase and helicase activities and specifically binds type...

OBJECTIVE To evaluate the influence of strabismus surgery on quality of life (QoL) in Graves' orbitopathy (GO) patients. DESIGN Prospective study of case series. METHODS Consecutive GO-patients who were scheduled for their first strabismus surgery were included in the study. The patients completed the GO-QoL questionnaire within 3 months before the surgery and 2-4 months after the surgery. ...

A new three-degrees-of-freedom (3-DOF) translational parallel manipulator (TPM) with linear actuators, i.e., 3-CRR TPM, is first proposed. The rotation singularity analysis, the inverse kinematics, the forward kinematics, and the kinematic singularity analysis of the 3CRR TPM are then performed. The analysis shows that the proposed TPM has the following kinematic merits over previous TPMs. (1) ...

The famous Black-Sholes (BS) and Cox-Ross-Rubinstein (CRR) formulas are basic results in the modern theory of option pricing in financial mathematics. They are usually deduced by means of stochastic analysis; various generalisations of these formulas were proposed using more sophisticated stochastic models for common stocks pricing evolution. In this paper we develop systematically a determinis...

An evolvable hardware paradigm for autonomic regeneration called Competitive Runtime Reconfiguration (CRR) is developed whereby an individual’s performance is assessed using the dynamic properties of the population rather than a static fitness function. CRR employs a Sliding Evaluation Window of recent throughput data and a periodically updatedOutlier Thresholdwhich avoids the extensive downtim...

In this work, the simultaneous investigation of a single cuprous oxide microcrystal towards CO2 electroreduction (CRR, reduction reaction) by using Raman microscopy and scanning electrochemical (SECM) is shown. Cu2O microcrystals were electrochemically crystallized on an indium-doped tin oxide-substrate (ITO). Structural changes are observed in situ microcopy, which indicates their fast convers...

This paper describes a polynomial time census algorithm for chinese remainder pseudorank. That is, we can rapidly estimate the density of integers with either good or bad pseudorank. The pseudorank of an integer is an important approximation technique that makes possible efficient parallel computation of the standard order relation on integers in chinese remainder (also known as multiresidue) r...

On the basis of the density functional theory, we give a clear definition of the free energy landscape. To show the usefulness of the definition, we construct the free energy landscape for rearrangement of atoms in an FCC crystal of hard spheres. In this description, the cooperatively rearranging region (CRR) is clealy related to the hard spheres involved in the saddle between two adjacent basi...