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Racial Differences In Bone Turnover Rate And Hyperparathyroidism In Hemodialysis Patients, Wendy Wei-Yue Lou

Yale Medicine Thesis Digital Library

No abstract provided.

Investigation Of The Mechanism Responsible For The Decreased Transcription Of The P53 Tumor Suppressor Gene In The Human Squamous Carcinoma Cell Line A253, Ho-Sheng Lin

Yale Medicine Thesis Digital Library

No abstract provided.

Purification Of A Novel Mid-Region Fragment Of Parathyroid Hormone-Related Protein And Evidence Of Its Secretion By Three Different Cell Types, Katherine Elizabeth Dee

Yale Medicine Thesis Digital Library

No abstract provided.

Functional Decline At Hospital Discharge In Elderly Surgical Patients, Anthony S. Burns

Yale Medicine Thesis Digital Library

No abstract provided.

Spatial And Temporal Distributions Of Sedimentary Chloropigments As Indicators Of Benthic Processes In Long Island Sound, Ming-Yi Sun, Robert C. Aller, Cindy Lee

Journal of Marine Research

Regular spatial and seasonal distribution patterns of sedimentary chloropigments occurred at 19 subtidal stations located in Long Island Sound (LIS) from MAY 1988 to APR 1989. Inventories of chloropigments were higher (2–10x) in western than central LIS, mirroring patterns of phytoplankton production in surface waters. Shallow water sediments (<25 m) received more chloropigments than deep stations (>25 m). Lateral resuspension and redistribution of particles, as shown by ²³⁴Th inventories, are partly responsible for these patterns. Seasonal variations of Chl-a inventories in LIS sediments follow the production pattern in the water column: higher values occur in spring and lower values in summer and fall. A time …

Frictional Decay Of Abyssal Boundary Currents, Parker Maccready

Journal of Marine Research

A theory is presented to explain the observed longevity of abyssal boundary currents flowing along sloping topography. Typically such currents are many Rossby radii wide, and their energy is dominantly potential, residing in the broad upturn of isopycnals near the slope. The rate of decay of energy, on the other hand, is governed by the much smaller kinetic energy of the flow absorbed by the bottom boundary layer. The spin-down time is thus increased by a (possibly large) factor of PE/KE times that required to dissipate the kinetic energy alone. The ratio PE/KE is calculated from data on two sections …

Aggregation And Sedimentation Processes During A Spring Phytoplankton Bloom: A Field Experiment To Test Coagulation Theory, Thomas Kiørboe, Claus Lundsgaard, Michael Olesen, Jørgen L. S. Hansen

Journal of Marine Research

Spring diatom blooms in temperate waters are often terminated by aggregation of the cells into large flocs and subsequent mass sedimentation of the phytoplankton to the sea floor. The rate of aggregate formation by physical coagulation depends on the concentration of suspended particles, on the turbulent shear that makes particles collide, and on their stickiness (= probability of adhesion upon collision). During a mixed diatom bloom in a shallow Danish fjord, for 3 weeks we monitored the concentration and stickiness of suspended particles and the species composition of the phytoplankton at 2–3 d intervals and we estimated the turbulent shear …

Flow Along And Across The Aleutian Ridge, R. K. Reed, P. J. Stabeno

Journal of Marine Research

During a synoptic hydrocast survey in September 1993 near the Aleutian Islands, net northward flow of Alaskan Stream water occurred through deep passes near 180 and 172W. This inflow (≈4 × 10⁶ m³ s⁻¹) was the source of the eastward flow in the Bering Sea north of the islands. The eastward flow, however, was weaker and more convoluted than the stream flow (≈7 × 10⁶ m³ s⁻¹, referred to 1000 db) south of the islands.

Signatures Of Stirring And Mixing Near The Gulf Stream Front, G. L. Hitchcock, T. Rossby, J. L. Lillibridge Iii., E. J. Lessard, E. R. Levine, D. N. Connors, K. Y. Børsheim, M. Mork

Journal of Marine Research

In October, 1986 the surface waters adjacent to the Gulf Stream front were surveyed with an undulating profiler to describe the finescale structure of the mixed layer. The profiler was a Seasoar equipped with a CTD and fluorometer. The survey first defined the structure of a cyclonic eddy which resembled frontal eddies of the South Atlantic Bight in sea surface temperature imagery. The Seasoar transects revealed, however, that the cyclonic eddy lacked a cold dome typically seen in frontal eddies. Farther downstream the Seasoar defined the structure of streamers of Gulf Stream and Shelf water wrapped about the southern edge …

Measurements Of Internal Wave Band Eddy Fluxes Above A Sloping Bottom, Hans Van Haren, Neil Oakey, Chris Garrett

Journal of Marine Research

The boundary layer near a sloping bottom may have a major influence on the ocean's interior density structure (due to “boundary mixing”) and on its circulation (because of the arrest of the Ekman layer by buoyancy forces). As a first attempt to measure eddy fluxes of momentum and buoyancy, in order to quantify the mixing in this region, we have carried out a 5-day pilot experiment on a sloping side of Emerald Basin on the Scotian Shelf. A moored upward-looking 1.2 MHz ADCP and a thermistor chain mounted along its vertical axis returned analyzable data between 8 and 17 m …

Set-Down Computations Over An Arbitrarily Inclined Plane Bed, Ulf Torsten Ehrenmark

Journal of Marine Research

A perturbation theory, for waves on a perfect fluid in a wedge-shaped domain, is used to derive integral expressions for set-down valid up to the breaker line for arbitrary wedge angles α. Computations are carried out for a set α = π/2N, (N = 2,3,…,7,15) using a generalized Simpson quadrature and these confirm that existing theory underestimates the set-down by a factor which increases with the wedge angle. Curve fitting techniques are used to deduce a modification of the formula given by Longuet-Higgins and Stewart (1963) which can be universally implemented to estimate set-down just seaward of …

A Modelling Study Of Discontinuous Biological Irrigation, Bernard P. Boudreau, Roberta L. Marinelli

Journal of Marine Research

Irrigation of infaunal dwellings can lead to significant alteration of solute distributions in sediments. As a result, sediment-seawater fluxes of nutrients and dissolved carbon are greatly enhanced, and the biology of benthic communities is affected. The most realistic mathematical representation of irrigation and its effect on sediment geochemistry is Aller's (1980) cylinder model. One critical assumption of this model is that burrows are irrigated continually, and that burrow water solute concentrations are identical to overlying water concentrations at all times. However, the vast majority of infaunal tube- and burrow-dwelling organisms irrigate periodically, i.e. in an on/off cycle. During periodic irrigation, …

A Study Of Movement Detection In Functional Echo-Planar Imaging Of The Brain, Ernst Christian Hansch

Yale Medicine Thesis Digital Library

No abstract provided.

Instability Waves In The Gulf Stream Front And Its Thermocline Layer, Sang-Ki Lee, G. T. Csanady

Journal of Marine Research

We carried out linear instability calculations on a three layer Gulf Stream front model in an attempt to elucidate the interaction of the thermocline layer with surface slopewater shoreward of the front. The basic state is geostrophic balance and constant potential vorticity in the two active layers, but the perturbations are ageostrophic. We found the flow to be unstable to long wave perturbations, the wavelength of the most unstable wave to be of the order of 10 radii of deformation. The instability is mainly baroclinic, 75–85% of the energy supply to the growing perturbation coming from basic flow potential energy. …

Hiv Seroprevalence At A Baltimore Correctional Facility, Kamala Mallik

Public Health Theses

Abstract

Prison and jail inmates constitute a growing population at risk for HIV infection. Inmates are at high risk for HIV infection because of pre-incarceration drug use; 60% of prison and jail inmates reported using drugs regularly at some point in their lives and 27% to 41% of inmates have a history of injection drug use. The high concentration of drug users in correctional facilities offers unparalleled access to a population that is otherwise difficult to reach for public health surveillance and intervention.

The Baltimore City Correctional Facility HIV Serosurvey was conducted by the Baltimore City Health Department between June …

Variability Of Radiologists' Mammographic Interpretations And Recommendations For Management, Debra Hope Howard

Yale Medicine Thesis Digital Library

No abstract provided.

Wanted: One Good Doctor : Depictions Of The Good Physician In Twelve American Novels, 1859-1925, Bonnie Elyssa Gould

Yale Medicine Thesis Digital Library

No abstract provided.

State Desertion And Credit Market Failure In The Hungarian Transition, John Bonin, Abel Istvan

Documents

No abstract provided.

Follicular Growth And Serum Estradiol Concentration As Predictors Of In Vitro Fertilization Outcome, Nicole Hausman

Yale Medicine Thesis Digital Library

No abstract provided.

Mitomycin C : Analysis Of Its Cytotoxicity Through Studies Using An Analogue Decarbamoyl Mitomycin C, Susie Young Kim

Yale Medicine Thesis Digital Library

No abstract provided.

Yale University School Of Medicine, Department Of Surgery Annual Report 1994-1995, Yale School Of Medicine Department Of Surgery

Yale Department of Surgery Bulletins

Annual report for 1994-1995

On Topographic Pressure Drag In A Zonal Channel, Alexander Krupitsky, Mark A. Cane

Journal of Marine Research

The effect of bottom topography H on the barotropic transport in a periodic zonal channel is studied. An asymptotic approximation is found for the zonal transport on an f-plane and a β-plane when all f/H isolines are blocked by the zonal walls. It is shown that to leading order, the zonal channel transport is independent of friction. In this it is similar to the Sverdrup transport in a basin. To leading order, the transport is proportional to the bottom topographic wavelength, and inversely proportional to the height of the topography and to R, the range of values of …

Circulation, Transport And Bottom Boundary Layers Of The Deep Currents In The Brazil Basin, X. Durrieu De Madron, G. Weatherly

Journal of Marine Research

Zonal and meridional hydrographic sections obtained for the South Atlantic Ventilation Experiment are used to study the circulation patterns and estimate the transports of North Atlantic Deep Water (NADW) and Antarctic Bottom Water (AABW) in the Brazil Basin. The NADW Deep Western Boundary Current (DWBC) appears to be a relatively large (≈ 800 km wide by 2 km thick), double core current, separated by counterflowing recirculation. It appears to split, branching seaward at the Cape Saõ Roque near 5S and again at the Columbia-Trinidad Seamount Chain at 21S. As a result of this latter bifurcation, the NADW DWBC flow in …

Wave-Induced Abyssal Recirculations, Michael A. Spall

Journal of Marine Research

The forcing of abyssal recirculation gyres by cross-isopycnal mixing and wave fluxes near the deep western boundary is investigated. A three-layer isopycnal primitive equation model is applied in a series of experiments to an idealized basin with bottom topography. In the absence of deep western boundary current instabilities, cross-isopycnal mixing forces a cyclonic recirculation gyre, modified by topography, which is consistent with the traditional Stommel-Arons model. Instabilities of the boundary current fundamentally alter the mean basin-scale deep flow from a cyclonic recirculation to an anticyclonic recirculation. Bottom topography plays a key role in destabilizing the mean flow. The forcing mechanism …

Effects Of Porewater Hydrogen Sulfide On The Feeding Activity Of The Subsurface Deposit-Feeding Polychaete, Clymenella Torquata, Leidy, Charlotte M. Fuller

Journal of Marine Research

The effects of porewater hydrogen sulfide concentrations on the feeding and tube-building activity of the subsurface, deposit-feeding polychaete, Clymenella torquata were experimentally determined in the laboratory. Porewater hydrogen sulfide concentrations were manipulated by injecting a buffered, isotonic sodium sulfide solution into the experimental chambers. Fecal material was collected and weighed and tube-building activity was monitored daily. Fecal production was negatively correlated with porewater hydrogen sulfide concentration during experiments conducted in June and July. Hydrogen sulfide concentrations greater than 1000 μM in June and 700 μM in July resulted in reduced fecal production. Fecal production was not correlated with porewater hydrogen …

The Disposal Of Bad Loans In Japan: A Review Of Recent Policy Initiatives, Frank Packer

Documents

No abstract provided.

Indian Public Finance In The 1990s: Challenges And Prospects, Willem H. Buiter, Urjit R. Patel

Discussion Papers

No abstract provided.

Measurement Of The Total Factor Productivity Of Spanish Agriculture: 1962-1989, Robert E. Evenson, M. Carmen Fernandez, A. Casimiro Herruzo

Discussion Papers

No abstract provided.

Second Order Approximation In The Partially Linear Regression Model, Oliver B. Linton

Cowles Foundation Discussion Papers

We examine the second order properties of various quantities of interest in the partially linear regression model. We obtain a stochastic expansion with remainder o P ( n -2µ ), where µ < 1/2, for the standardized semiparametric least squares estimator, a standard error estimator, and a studentized statistic. We use the second order expansions to correct the standard error estimates for second order effects, and to define a method of bandwidth choice. A Monte Carlo experiment provides favorable evidence on our method of bandwidth choice.

Public Law No: 103-204 - Resolution Trust Corporation Completion Act 1993, U.S. Congress

Documents

No abstract provided.