Unilateral cricothyroid contraction and glottic configuration.

It is frequently stated that unilateral cricothyroid muscle (CT) paralysis can be diagnosed by physical examination, noting rotation of the glottis, and shortening and vertical displacement of the ipsilateral vocal fold. These signs, however, are inconsistently observed, and there is considerable controversy regarding the direction of glottic rotation. To determine the effects of CT contraction on three-dimensional glottic configuration, we performed computerized tomography on cadaver larynges before and after simulated CT contraction. Radiopaque makers were used to compute distances. Unilateral CT contraction equally increased the length of both membranous vocal folds, and rotated the posterior glottis less than 1 mm. CT contraction neither adducted the vocal processes, nor significantly their altered vertical level. These results suggest that unilateral CT paralysis cannot be diagnosed on the basis of any clinically apparent change in glottal configuration.

Selected configuration interaction with truncation energy error and application to the Ne atom

Selected configuration interaction (SCI) for atomic and molecular electronic structure calculations is reformulated in a general framework encompassing all CI methods. The linked cluster expansion is used as an intermediate device to approximate CI coefficients BK of disconnected configurations (those that can be expressed as products of combinations of singly and doubly excited ones) in terms of CI coefficients of lower-excited configurations where each K is a linear combination of configuration-state-functions (CSFs) over all degenerate elements of K. Disconnected configurations up to sextuply excited ones are selected by Brown's energy formula, ΔEK=(E-HKK)BK2/(1-BK2), with BK determined from coefficients of singly and doubly excited configurations. The truncation energy error from disconnected configurations, Δdis, is approximated by the sum of ΔEKS of all discarded Ks. The remaining (connected) configurations are selected by thresholds based on natural orbital concepts. Given a model CI space M, a usual upper bound ES is computed by CI in a selected space S, and EM=E S+ΔEdis+δE, where δE is a residual error which can be calculated by well-defined sensitivity analyses. An SCI calculation on Ne ground state featuring 1077 orbitals is presented. Convergence to within near spectroscopic accuracy (0.5 cm-1) is achieved in a model space M of 1.4× 109 CSFs (1.1 × 1012 determinants) containing up to quadruply excited CSFs. Accurate energy contributions of quintuples and sextuples in a model space of 6.5 × 1012 CSFs are obtained. The impact of SCI on various orbital methods is discussed. Since ΔEdis can readily be calculated for very large basis sets without the need of a CI calculation, it can be used to estimate the orbital basis incompleteness error. A method for precise and efficient evaluation of ES is taken up in a companion paper

Select-divide-and-conquer method for large-scale configuration interaction

A select-divide-and-conquer variational method to approximate configuration interaction (CI) is presented. Given an orthonormal set made up of occupied orbitals (Hartree-Fock or similar) and suitable correlation orbitals (natural or localized orbitals), a large N-electron target space S is split into subspaces S0,S1,S2,...,SR. S0, of dimension d0, contains all configurations K with attributes (energy contributions, etc.) above thresholds T0={T0egy, T0etc.}; the CI coefficients in S0 remain always free to vary. S1 accommodates KS with attributes above T1≤T0. An eigenproblem of dimension d0+d1 for S0+S 1 is solved first, after which the last d1 rows and columns are contracted into a single row and column, thus freezing the last d1 CI coefficients hereinafter. The process is repeated with successive Sj(j≥2) chosen so that corresponding CI matrices fit random access memory (RAM). Davidson's eigensolver is used R times. The final energy eigenvalue (lowest or excited one) is always above the corresponding exact eigenvalue in S. Threshold values {Tj;j=0, 1, 2,...,R} regulate accuracy; for large-dimensional S, high accuracy requires S 0+S1 to be solved outside RAM. From there on, however, usually a few Davidson iterations in RAM are needed for each step, so that Hamiltonian matrix-element evaluation becomes rate determining. One μhartree accuracy is achieved for an eigenproblem of order 24 × 106, involving 1.2 × 1012 nonzero matrix elements, and 8.4×109 Slater determinants

Linear response functions for a vibrational configuration interaction state

Linear response functions are implemented for a vibrational configuration interaction state allowing accurate analytical calculations of pure vibrational contributions to dynamical polarizabilities. Sample calculations are presented for the pure vibrational contributions to the polarizabilities of water and formaldehyde. We discuss the convergence of the results with respect to various details of the vibrational wave function description as well as the potential and property surfaces. We also analyze the frequency dependence of the linear response function and the effect of accounting phenomenologically for the finite lifetime of the excited vibrational states. Finally, we compare the analytical response approach to a sum-over-states approach

How do coil configuration and packing density influence intra-aneurysmal hemodynamics?

Endovascular coiling is a well-established therapy for treating intracranial aneurysms. Nonetheless, postoperative hemodynamic changes induced by this therapy remain not fully understood. The purpose of this work is to assess the influence of coil configuration and packing density on intra-aneurysmal hemodynamics

Improving Transition Outcomes-An Innovative State Alignment Grant for Improving Transition Outcome for Youth with Disabilities Through the Use of Intermediaries, 2004

Iowa Vocational Rehabilitation Services, a Division of the State of Iowa Department of Education, in partnership with six other state agencies, applied for and was awarded funding for “Improving Transition Outcomes for Youth with Disabilities Through the Use of intermediaries.” This Innovative State Alignment Grant is funded by the Department of Labor, Office of Disability Employment Policy. For clarity and brevity, the Iowa team chose to use “Improving Transition Outcomes” as the project name, thus providing the acronym ITO. Grant funding began October 1, 2003 with the possibility of renewal for five years.

Innovative Outstanding Weatherization Assistance News, April 2005, Vol.3, no.2

Quarterly newsletter from the Division of Cimmunity Action Agenices, part of the Department of Human Rights.

Innovative Outstanding Weatherization Assistance News, January 2003. Vol.1, no.1

This is the first of what we hope will be a quarterly newsletter for the Iowa Weatherization Program. The purpose of the newsletter is to share with you information on all aspects of the program as well as spotlight a couple of agencies in each issue. We will provide information on upcoming events, training schedules, monitoring schedules and general news about the program. There will be a section of questions we have received from you and the answers provided. The section called Speed Bumps lists various problems Mike has found during state inspections. Chris Taylor, who is our editor-in-chief, will be contacting agencies for information. This can include staff news, program highlights or any other news fit to print. If there is anything you would like to see included in the newsletter or have information to get out to everyone, please let us know.

Innovative Outstanding Weatherization Assistance News, April 2003. Vol.1, no.2

The 2002-2003 Weatherization Program has just come to an end and we would like to take the time to thank you for an excellent year serving the population of Iowa. As always, it was a pleasure working with each and every one of you. We have recently had a new addition to the weatherization family. A hearty welcome is extended to Mike Creeden, the new Weatherization Coordinator at North Iowa. Agencies were recently sent their HEAP and DOE contracts. Once the HEAP contracts are received by our office and signed by the Administrator, they will be promptly returned for your files. The DOE signature pages will be returned to each agency, once DOE has approved the state plan. In the meantime, should you have any questions, feel free to contact our office. There was a change in this year’s utility contracts; a maximum of twelve bulbs may be replaced per house, at a maximum of $10 per bulb. WAMS in Access 2000 is just about ready for use. Be looking for it’s release soon. Look forward to Pressure Diagnostic and TI- 86 training July 8-9 and 22-23. If you are interested in hosting this training, please contact our office.

Innovative Outstanding Weatherization Assistance News, July 2003. Vol.1, no.3

Quarterly newsletter from the Division of Cimmunity Action Agenices, part of the Department of Human Rights.

Innovative Outstanding Weatherization Assistance News, October 2003. Vol.1, no.4

Quarterly newsletter from the Division of Cimmunity Action Agenices, part of the Department of Human Rights.

Innovative Outstanding Weatherization Assistance News, April 2004, Vol.2, no.2

Quarterly newsletter from the Division of Cimmunity Action Agenices, part of the Department of Human Rights.

Innovative Outstanding Weatherization Assistance News, July 2004, Vol.2, no.3

Quarterly newsletter from the Division of Cimmunity Action Agenices, part of the Department of Human Rights.

Innovative Outstanding Weatherization Assistance News, October 2004, Vol.2, no.4

Quarterly newsletter from the Division of Cimmunity Action Agenices, part of the Department of Human Rights.