Digital Commons Network^™

Interaction Of A Copepod Population With The Mean Circulation On Georges Bank, Cabell S. Davis

Journal of Marine Research

The population structure of the copepod, Pseudocalanus sp., on Georges Bank in February 1975 had distinct shifts from younger to older developmental stages in a clockwise pattern around the bank. It is hypothesized that this spatial pattern resulted from the interaction of copepod population dynamics and the mean circulation of sea water around Georges Bank. To test this idea, a combined physical/biological model is developed which simulates copepod population dynamics at each of a series of fixed spatial points around a hypothetical gyre. This simple physical scheme incorporates both advection and diffusion of copepods around the gyre. Rates of advection …

Wave Damping By Monomolecular Surface Films And Their Chemical Structure. Part Ii: Variation Of The Hydrophilic Part Of The Film Molecules Including Natural Substances, Heinrich Hühnerfuss, Philipp Lange, Wolfgang Walter

Journal of Marine Research

The direct wave attenuation influence of surface active compounds on plunger-generated water waves (1.0, 1.3, 1.8, 2.0, 2.3, and 2.5 Hz) was investigated in the Hamburg wind-wave tunnel by systematic variation of the hydrophilic group. Long-chain alcohols, acids, and amines exhibit a considerable wave damping effect. An additional wave energy dissipation term is active in the presence of carboxylic acid ester (E/Z-isomerization). It is concluded from the experimental results that hydrophobic interactions between the hydrophobic alkyl chains and the adjacent water layer play a dominant role by inducing “ice-like clathrate structures.” Some hydrophilic groups (mono- and di-oxyethylenated alcohols) may also …

The Use Of Tamoxifen As A Biochemical Modulator In Estrogen-Responsive Human Mammary Carcinoma, John Leonard Gwin Jr.

Yale Medicine Thesis Digital Library

No abstract provided.

On The Equivalence Of Nonlocal And Radial-Diffusion Models For Porewater Irrigation, Bernard P. Boudreau

Journal of Marine Research

Aller (1977, 1978, 1980) and Aller and Yingst (1978) have demonstrated that the presence of well-irrigated worm-tubes and other animal burrows in sediments can significantly alter the rate of exchange of solutes between porewater and the overlying waters. Specifically, the burrows modify the geometry of the porewater system such that solutes can diffuse toward or away from either the sediment-water interface or the burrow. The burrow constitutes an additional boundary source or sink...

Circulating Immune Complexes In Systemic Lupus Erythematosus : A Search For The Antigen, Mark Stein

Yale Medicine Thesis Digital Library

No abstract provided.

Demand For Child Health And Fertility In Rural India, Leslie A. Laufer

Discussion Papers

No abstract provided.

Optimal Trade And Industrial Policy Under Oligopoly, Jonathan Eaton, Gene M. Grossman

Discussion Papers

No abstract provided.

A New Subfamily, Conacodontinae, And New Species, Conacodon Kohlbergeri, Of The Periptychidae (Condylarthra, Mammalia), J. David Archibald, Robert Milton Schoch, J. Keith Rigby Jr.

Postilla

An associated palate and dentaries from the early Paleocene (Puercan), San Juan Basin, New Mexico, are the type of a new species, Conacodon kohlbergeri. This species is cladistically most closely related to C. entoconus. Both species lack the paraconid on P3-4 and have a more complete precingulum on the upper molars. Both Conacodon and Oxyacodon have a lingually expanded hypocone and lack the protocone on P3. These two genera are included in a new subfamily, Conacodontinae. A trichotomy between this subfamily, the Anisonchinae, and Periptychinae cannot be resolved at present.

Securities And Exchange Commission- Treadway- Rule 415 - An Overview Of Rule 415 And Some Thoughts About The Future, James C. Treadway Jr.

Documents

No abstract provided.

Yale Nurse: Yale University School Of Nursing Alumnae/I Association Newsletter, Fall 1983, Yale University School Of Nursing

Yale School of Nursing Alumni Newsletters and Magazines

Please contact the Medical Historical Library if you need a higher resolution version.

Yale-New Haven Special Issue : 1983 Annual Report, Yale-New Haven Hospital

Yale New Haven Hospital Annual Reports

For the Year 1983. Year ending September 30, 1983.

Heterogeneity Of Family And Hired Labor In Agriculture: A Test Using Farm-Level Data From India And Malaysia, Anil Deolalikar, Wim Vijverberg

Discussion Papers

No abstract provided.

Migrant Behavior And The Effects Of Regional Prices: Aspects Of Migrant Selection In Columbia, T. Paul Schultz

Discussion Papers

No abstract provided.

Osteology And Functional Morphology Of Dimorphodon Macronyx (Buckland) (Pterosauria: Rhamphorhynchoidea) Based On New Material In The Yale Peabody Museum, Kevin Padian

Postilla

Two incompfete skeletons and other isolated bones of Dimorphodon macronyx (Buckland), an early rhamphorhynchoid pterosaur from the Lower Lias (Hettangian) of England, have remained undescribed in the collections of the Peabody Museum of Natural History since their acquisition by O. C. Marsh over a century ago. Some of this material comes from Aust Cliff near Bristol, and therefore constitutes the first record of Dimorphodon outside the Lyme Regis area of Dorset. The two individuals are smaller than those in the British Museum (Natural History) described by Owen, and juvenile proportions characterize both cranial and postcranial remains. Much of the material …

Hospital Of Saint Raphael, Report To The Community, 1982, Hospital Of Saint Raphael

Hospital of St. Raphael Annual Reports

No abstract provided.

Good-Bye Financial Repression, Hello Financial Crash, Carlos F. Diaz-Alejandro

Discussion Papers

No abstract provided.

Yale Nurse: Yale University School Of Nursing Alumnae/I Association Newsletter, Spring 1983, Yale University School Of Nursing

Yale School of Nursing Alumni Newsletters and Magazines

This issue's feature article is "Walking Through History: 60 Years at YSN" which focuses on the launch of a School archive of historical items donated by alumni.

Please contact the Medical Historical Library if you need a higher resolution version.

The Dynamics Of Agricultural Supply: A Reconsideration, Zvi Eckstein

Discussion Papers

No abstract provided.

The U.S. Strategic Petroleum Reserve: An Analytic Framework, Jonathan Eaton, Zvi Eckstein

Discussion Papers

No abstract provided.

A Review Of Caldwell’S Theory Of Fertility Decline, T. Paul Schultz

Discussion Papers

No abstract provided.

Estimating A Household Production Function: Heterogeneity, The Demand For Health Inputs And Their Effects On Birthweight, Mark Rosenzweig, T. Paul Schultz

Discussion Papers

No abstract provided.

Vertical Flux Of Fatty Acids In The North Atlantic Ocean, Hein J. W. De Baar, John W. Farrington, Stuart G. Wakeham

Journal of Marine Research

The quantitative and qualitative composition of fatty acids in particulate material collected in traps deployed during 98 days at 389, 988, 3755 and 5068 m depths in the equatorial North Atlantic was determined. The fatty acid composition indicates a predominantly marine source (14:0, 16:0, 16:1, 18:0, 18:1, 20:5, 20:4, 22:6, 22:5) with possibly a minor terrigenous component in the bathypelagic traps. The vertical fluxes of fatty acids and lipids decrease rapidly with depth. The rate of net loss of carboxylic acids increases with number of double bonds and decreases with number of carbon atoms. Iso- and anteiso- as well as …

Toxic Binding Of Cupric Ion By Marine Phytoplankton, Jerome Gavis

Journal of Marine Research

The data presented by Gavis et al. (1981, J. Mar. Res., 39, 315–333) for the specific growth rate of phytoplankton in nutrient replete medium as a function of cupric ion activity can be described quantitatively by equations that relate the equilibrium binding of cupric ions to a cell receptor site. Statistically significant conditional binding constants could be estimated from the data for at least eight clones among three species. One clone could bind only one cupric ion per site. The others could bind a maximum of two cupric ions per site. For one of these clones K₁ > K_{2 …}

Tidally Generated High-Frequency Internal Wave Packets And Their Effects On Plankton In Massachussetts Bay, Loren R. Haury, Peter H. Wiebe, Marshall O. Orr, Melbourne G. Briscoe

Journal of Marine Research

Tidally generated internal wave packets occur twice a day during late summer in Massachusetts Bay, U.S.A. The packets are formed at Stellwagen Bank and propagate into the Bay at about 60 cm sec^—1; they dissipate in shallow water at the western side of the Bay. The dominant waves in packets have lengths of about 300 m, periods of between 8 and 10 min, and amplitudes of up to 30 m. Overturning of the waves has been observed acoustically over Stellwagen Bank, in the deep (80 m) waters in the center of the Bay, and during dissipation in shallow …

Quasi-Lagrangian Structure And Variability Of The Subtropical Western North Atlantic Circulation, Stephen C. Riser, H. Thomas Rossby

Journal of Marine Research

A large body of quasi-Lagrangian trajectory (SOFAR float) data collected from 1976-1979 from 700 m and 2000 m in the western North Atlantic is examined, and it is shown that the character of the trajectories varies markedly over regions as small as a few degrees of latitude and longitude. Kinetic energy increases to the north and west in the basin at both levels. At 700 m a large northwest energy gradient is present between 30N and 31N at 70W. At 2000 m kinetic energy increases to the north and west with the largest gradients very near to the Blake Escarpment …

Observations On The Degradation Of Biogenic Material In The Deep Ocean With Implications On Accuracy Of Sediment Trap Fluxes, Wilford D. Gardner, Kenneth R. Hinga, John Marra

Journal of Marine Research

The results of several observations and experiments indicate that the decay of organic material inside and outside of sediment traps in the deep ocean is on the order of 0.1-1.0% day⁻. These results must be considered when using sediment traps to determine the flux of organic material through the water column. The effectiveness of poisons in traps has not been adequately determined since the concentration of poisons in traps has not been monitored. Even traps containing poison may lose organic matter through leaching or from rapid grazing. A model is presented to quantify the loss of organic carbon …

Synoptic Estimates Of Air-Sea Fluxes, Richard F. Marsden, Stephen Pond

Journal of Marine Research

Synoptic and climatological dynamic studies generally rely on bulk aerodynamic flux formulae to describe air-sea heat and momentum exchange on synoptic and climatological scales. Barometric pressure maps (which involve an intrinsic spatial and temporal averaging of the wind) and wind roses provide two sources of spatial and temporal wind information for flux calculations. Several investigators have shown that time-averaged estimates of the fluxes based on vector-averaged winds systematically underestimate the actual time-averaged fluxes.Using surface meteorological observations from 9 weatherstations in the North Atlantic Ocean and 2 weatherstations in the North Pacific Ocean, the three hourly stresses, latent heat fluxes and …

On The Migration Of Isolated Eddies With Application To Gulf Stream Rings, Doron Nof

Journal of Marine Research

An analytical model describing the β-induced drift of isolated nonlinear eddies such as the cold- and warm-core rings observed in the Atlantic Ocean is proposed. The ocean is approximated by two layers and attention is focused on frictionless upper ocean eddies whose surface area is finite. These isolated eddies are nonlinear in the sense that (a) the corresponding Rossby number is relatively large and (b) the interface vertical displacements ("amplitudes") are comparable to the upper layer undisturbed depth. Solutions for steadily translating eddies which carry their entire mass as they move are sought. Examination of the problem in a …

A Dead Central American Coral Reef Tract: Possible Link With The Little Ice Age, Peter W. Glynn, Ellen M. Druffel, Robert B. Dunbar

Journal of Marine Research

Radiocarbon analyses, stable isotopic measurements and extensive field observations were made of coral reefs off the Pacific coast of Costa Rica and Panama. These analyses showed that live coral reefs in the Gulf of Papagayo, Costa Rica, were severely depleted in number, size and variety of species, compared to reefs in the major upwelling zone of the Gulf of Panama. Coral growth in the Gulf of Papagayo consisted mainly of dead reefs that died from 150–300 years B.P. The δ¹⁸O records revealed that most of the dead reefs were exposed to relatively cool water immediately preceding death. We …

Tidal Currents, Winds And The Morphology Of Phytoplankton Spatial Structures, M. Levasseur, J. C. Therriault, L. Legendre

Journal of Marine Research

Chlorophyll a, nutrients and salinity distributions were studied at two spatial scales (10 cm and 0.25 to 2.5 km) in the St. Lawrence Estuary (Quebec, Canada), in order to investigate the role of tidal currents and winds in the formation and maintenance of spatial structures. Data were collected according to a synoptic sampling pattern using three sampling platforms simultaneously, and they were analyzed using analysis of variance. The sampling pattern was repeated on four occasions during July 1980.Analyses of variance indicated significant spatial heterogeneities of about the same magnitude at the two scales studied for chlorophyll and nutrients, whereas …