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The Trinidad And Tobago/Venezuela Fishing Agreement, Zaleena K. Chin-Yuen-Kee

Marine Affairs Theses and Major Papers

The twin-island Republic of Trinidad and Tobago is situated adjacent to the Republic Of Venezuela such that at one point Trinidad is merely seven miles off the northeast coast of Venezuela. Fishing activities of nationals of each country in the waters of the other are therefore common and often lead to conflict. In an attempt to solve the fishing problem a fishing agreement was negotiated. It came into force in 1978 and expired in 1984 whereupon negotiations commenced once more in an attempt to achieve new accord. The fishing industries of both countries and the conflicts which led to the …

Cooperatives: Their Effectiveness And Limitations For Small-Scale Fisheries Development, Hiroaki Yonesaka

Marine Affairs Theses and Major Papers

Increased experience in fisheries cooperatives of developing countries has called into question a long-held presumption about their desirability and feasibility. In this context, this study attempts to reformulate the cooperative approach for small-scale fisheries in a realistic policy framework. First, past failures of fisheries cooperatives are analyzed from three different angles: the uniqueness of the fishing industry, systems intrinsic to the cooperative, and development policy. Second, various possibilities of building viable cooperatives are explored by introducing two key concnpets: the strategic option and the operational option. On the one hand, the strategic option implies that it is imperative to integrate …

Microbial Manganese Reduction By Enrichment Cultures From Coastal Marine Sediments, David J. Burdige, Kenneth H. Nealson

OES Faculty Publications

Manganese reduction was catalyzed by enrichment cultures of anaerobic bacteria obtained from coastal marine sediments. In the absence of oxygen, these enrichment cultures reduced manganates when grown on either lactate, succinate, or acetate in both sulfate-free and sulfate-containing artificial seawaters. Sodium azide as well as oxygen completely inhibited microbial manganese reduction by these enrichment cultures, whereas molybdate had no effect on them. The addition of nitrate to the medium slightly decreased the rate of Mn²⁺ production by these enrichment cultures. These findings are consistent with the hypothesis that the manganese-reducing organisms in these enrichment cultures use manganates as terminal …

Iowa Science Teacher Section Fall Conference, 1985, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

--- Featured Speaker: George Vanerkurr
--- Iowa Academy of Science 1985-86 Officers
--- Sessions
--- Iowa Science Teachers Outstanding Service Award for 1985: Roy D. Unruh
--- Presidential Award for Excellence in Science Teaching 1985: Donald A. Schaefer
--- Iowa Academy of Science Excellence in Science Teaching Awards, Spring 1985
--- Exhibitors
--- 1985 Fall Conference Committee

X-Ray Microanalysis In Cryosections Of Natively Frozen Paramecium Caudatum With Regard To Ion Distribution In Ciliates, M. Schmitz, R. Meyer, K. Zierold

Scanning Electron Microscopy

Cells of Paramecium caudatum were shock-frozen without pretreatment for cryoultramicrotomy and freeze-dried for subsequent X-ray microanalysis. Na, Mg, P, S, Cl, K, and Ca were detected in different amounts in several subcellular compartments. In particular, calcium was localized below the cell surface (pellicle). Trichocysts were found to contain significant amounts of Na in their base but not in the tip. Na, Mg, P, S, Cl, K, Ca were found in electron dense deposits within the lumen of the contractile vacuole. A small K concentration was found in the cytoplasm and in the mitochondria. X-ray microanalysis of the element distribution in …

An Analysis Of The Effect Of Network Load And Topology On The Performance Of Concurrency Control Algorithm In Distributed Database Systems, Anoop Singhal, Amit P. Sheth, Ming T. Liu

Kno.e.sis Publications

Earlier studies in the performance analysis of concurrency control algorithms in distributed database systems (DDBS) have assumed that the message transmission time between any two nodes of a network is constant. Hence they disregard the effect of communication subnet related parameters such as network traffic, network topology, the capacity of transmission channels and the size of messages transmitted. In this paper an analytical model is used to estimate the delays in transmission channels for a DDBS in a long haul network. The analysis shows that the constant transmission time assumption cannot be justified in many cases and that response time …

Effects Of The Degree And Type Of Sizing On The Dyeing Of Paper, J. Pease

Paper Engineering Senior Theses

A study was made comparing papers dyed in a rosin/alum sized system to papers dyed in two alkaline sized systems. The alkaline sizes chosen were alkyl ketene dimer and alkenyl succinic anhydride. The dye types studied were acid, basic, anionic direct, and cationic direct. The degree of sizing was varied for each sizing type to see if the amount of sizing would effect dye retention. The papers dyed with anionic and cationic direct dyes and the basic dye were not significantly effected by sizing type of sizing degree. The direct dyes did give a lighter shade when the rosin size …

Characterization Of Kpni Interspersed, Repetitive Dna Sequence Families And Their Association With The Nuclear Matrix, Joseph A. Chimera

Electronic Theses and Dissertations

The KpnI, 1.2 and 1.5 kb families of interspersed repetitive DNAs from the African green monkey genome were isolated and characterized. Each family contains three populations of segments based on their sequence lengths and susceptibility to cleavage by the restriction enzymes KpnI and RsaI. The first population contains the smallest segments which are susceptible to both KpnI and RsaI cleavage and have fragment lengths of 1.2 kb (1.2 kb family) and 1.5 kb (1.5 kb family) respectively. The members in this population are referred to as KpnI-sensitive segments. The second population contains longer segments (> 2 kb) which represent fusions …

Characterization Of Carbonaceous Materials By Correlated Electron And Optical Microscopy And Raman Microspectroscopy, C. Beny-Bassez, J. N. Rouzaud

Scanning Electron Microscopy

Carbonaceous materials differ according to their chemical composition (types of heteroatoms), their structure and their microtexture. So, it is interesting to find methods for characterizing them. We choose to correlate data from Raman microspectroscopy, optical microscopy and transmission electron microscopy. First, we use both graphitizable or non-graphitizable reference carbon series of simple chemical composition in order to follow the structural transformation of the carbonaceous materials according to the evolution of these data throughout heat-treatment of these samples. Then, the coals of different ranks are studied.

The Raman results are correlated with those from electron microscopy, particularly by plotting, for the …

A Comparison Of Selected Nutrition Factors Of Personal Care Residents With Nutrition For The Elderly Residents., Jill Kay Costin

Masters Theses & Specialist Projects

Persons in the Nutrition for the Elderly program in Barren River Area Development District in Kentucky and personal care residents at Lakeview Nursing Home, Morgantown, Kentucky, and Glasgow Rest Home, Glasgow, Kentucky participated I this study on a voluntary basis. The population consisted of an intact sample of sixty-eight persons: forty-six personal care residents (PC residents) and twenty-two Nutrition for the Elderly participants (NE participants). The Ne participants and Pc residents were compared to determine which received the best nutritional care. Selected parameters of nutritional assessment were compared for the two groups be means of a t test. The groups …

Use Of Scanning Electron Microscopy To Study Structural-Functional Relationships In Normal And Diseased Platelets, J. C. Mattson

Scanning Electron Microscopy

This paper reviews the contribution of scanning electron microscopy (SEM) to our understanding of platelet physiology and pathology. Observations of platelet shape changes which accompany activation and the ability to visualize and analyze platelet aggregation and adhesion in three dimensions make this experimental medium an important tool in the evaluation of healthy and diseased platelets. While SEM adds a valuable third dimension to the study of morphology and ultrastructure, its greatest contribution is realized when studies are correlated directly with light and/or transmission electron microscopic observations and with studies of functional capacity.

Recent Advances In Laser Microprobe Mass Analysis (Lamma) Of Inner Ear Tissue, A. Meyer Zum Gottesberge-Orsulakova, R. Kaufmann

Scanning Electron Microscopy

Maintenance of ionic gradients within the various fluids compartments of the inner ear requires transport active cellular systems at different locations. LAMMA analysis is ideally suited for detection of ions in microquantity on cellular levels overcoming many technical difficulties. The present paper summarizes the results of microprobe analysis obtained with laser induced mass spectrometry (LAMMA) supplemented by X-ray microprobe analysis of epithelial cell layers adjacent to the endolymphatic space (a) in the cochlear duct, (b) in the vestibular organ and (c) in the endolymphatic sac. The possible role of inner ear as well as ocular melanin in the mechanisms of …

Microcharacterization Of Fluid Inclusions In Minerals By Raman Microprobe, J. C. Touray, C. Beny-Bassez, J. Dubessy, N. Guilhaumou

Scanning Electron Microscopy

Fluids trapped in inclusions in minerals are micro-amounts of ore-forming media composed of water, dissolved salts, gases and sometimes liquefied gases, liquid, hydrocarbons and solids. The aim of this paper is to summarize the contribution of the Raman scattering microspectrometry to the knowledge of fluid inclusions. After a review of the composition of fluid inclusions and a short presentation of microthermometrical investigations, a description of the Raman microprobe is given. Applications are reviewed; identification of ionic species dissolved in aqueous phase, characterization of gases of C-O-H-N-S system, identification of solids and non aqueous liquids. The complementary characteristics of Raman microanalysis …

Calcium Oxalate Crystal Production In Two Members Of The Mucorales, M. D. Powell, H. J. Arnott

Scanning Electron Microscopy

Calcium oxalate crystals are found in association with the sporangia of Mucor hiemalis and Rhizopus oryzae. Crystals observed in each species vary in morphology from simple crystals consisting of single spines in M. hiemalis to complex crystals with twin spines, sometimes three-parted, on a common base in R. oryzae. The early development of the crystals is similar in both species with a layer of the cell wall covering in the initial crystals. The spines of M. hiemalis rapidly emerge while the crystals of R. oryzae appear to remain covered with a layer of outer wall material. The crystals …

Louisiana Agriculture Magazine, Fall 1984, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Correlation Studies Between Human Seminal Plasma Trace Metal Concentrations And Semen Quality, De-Shen Mei

Chemistry & Biochemistry Theses & Dissertations

Methodologies for the determination of cadmium, copper, selenium and zinc concentration in human seminal plasma have been developed using polarized Zeeman-effect atomic absorption spectroscopy. Within-run coefficients of variation (CY's) for cadmium, copper, selenium and zinc from pooled seminal plasma were found to be 8%, 5% , 4% and 0.5% at a mean (SD) concentration of 0.48 (0.04), 147 (7 .6), 53 (2. 1) and 122,900 (700) μg/ℓ, (n = 10), respectively.

Between-run CV's were determined to be 4% , 7%, 5% and 7% at a mean (SD) concentration of 2.4 (0.1), 147 (10. 1), 67.7 (3.4) and 115,800 (8300) …

Contaminant Transport Against A Slowly Moving Fluid : An Experimental Investigation, Surya Man Shakya

Theses

Leachate migration into groundwater from leaking lagoons, hazardous waste sites, solid waste disposal sites, etc. has recently become a major cause of groundwater pollution. A possible solution to prevent leachate migration into groundwater is to create a negative hydraulic gradient toward the site. This can be achieved by installing two parallel slurry trench cut-offs around the perimeter of a leaking lagoon and by filling it with water. The water und-er the influence of positive hydraulic gradient will move toward the site and will finally find its way on the surface of the lagoon. Along with the flow of water, the …

Microbial Characteristics Of An Activated Sludge And Three Commercial Preparations After Exposure To Phenolics, Laurie Gneiding

Theses

The biological characteristics of four microbial mixtures were examined after successive exposure to phenol and 2-chlorophenol at room temperature. One of the microbial mixtures was an activated sludge from the Livingston, NJ municipal wastewater treatment plant. The other three mixtures were commercial preparations sold by Polybac Corp.(Hydrobac), Sybron Corp. (BI-CHEM DC 1006/1007), and General Environmental Sciences(LLMO).

The characteristics examined were relative counts and species of gram negative/gram positive bacteria, yeast and fungi, protozoa, and higher organisms. For the gram negative bacteria and yeasts, culturing techniques and diagnostic tubes were used to determine the predominant species. Biochemical tests were done on …

Parameters Of Growth In The Embryonic And Neonatal Chick Basilar Papilla, Douglas A. Cotanche, Kathleen K. Sulik

Scanning Electron Microscopy

The growth of the basilar papilla in the chick cochlear duct was studied utilizing light, scanning, and transmission electron microscopy. The ages of the cochleae investigated ranged from embryonic day 6 to post-hatching day 7. The changes in the length and width of the basilar papilla as well as the establishment of its spatula-like shape were correlated with the maturation of the hair cells' apical surfaces and the changes in the cellular organization of the sensory epithelium. The histological reorganization of the distal hair cell nuclei was concomitant with the broadening of the distal region of the basilar papilla and …

Distributed Computing In A Hospital Environment, Steven R. Lund, Laurens V. Ackerman, James B. Martin

Henry Ford Hospital Medical Journal

Obtaining appropriate information in a timely fashion in medical practice has always been a burden for the practitioner. In a large hospital which undertakes major computer projects, this burden is intensified because information is not always available in a form directly usable by the physician or support personnel; it is now accumulated on diverse magnetic media where it is moved and processed as electronic pulses. This paper describes a solution which freely allows continued automation at different rates throughout a large hospital while expediting the movement of information where it is needed in a form understandable by the recipient.

Hsus Exposes Livestock Transportation Cruelty

Close Up Reports

No abstract provided.

Sixth Biennial Cheese Industry Conference, Various Authors

Cheese Industry Conference

No abstract provided.

Effects Of Dehydration On Hemoglobin Oxygen Affinity And Blood Cell Volume In Two Anurans, Andrew Christopher Zygmunt

Dissertations and Theses

Two aspects of possible adaptation in cardiovascular performance caused by increased plasma electrolytes were examined. Cells in anisotonic plasma may either act as osmometers or volume regulate. Blood flow rate is dependent upon cell viscosity, which in turn is a consequence of cell volume and membrane deform-ability. Cell volume changes which increase membrane deform-ability will thus potentially extend the limits of dehydration tolerance. It was found in R. catesbeiana and B. marinus that red blood cell is maintain constant volume during dehydration. Cells in vitro initially lose water, but then sodium, potassium and water move into the cell. Cell viscosity …

A Restriction Analysis Of Klebsiella Pneumoniae Phage Sbs, Heidi A. Walters-Khan

Loma Linda University Electronic Theses, Dissertations & Projects

A Klebsiella phage was isolated from the San Bernardino sewage and its physiochemical properties analyzed. The present study found the density of the phage to be 1.44 g/ml, the burst size to be 10, and the phage had a latent period of 20-25 minutes. The DNA was found to be double stranded and linear. Its molecular weight was 41.66 + 0.72 kilobase pairs. The DNA was digested with a battery of endoncleases and partial restriction maps determined. The potential of the phage as a vector for Klebsiella is discussed in the text.

Extrathyroidal Human Biochemistry Of Monoiodotyrosine, Stanley Andrew Tan

Loma Linda University Electronic Theses, Dissertations & Projects

The existence of extrathyroidal monoiodotyrosine (MIT) has been debated because of uncertain results from measuring serum MIT. The reason is that the isotopic and chromatographic assays used have not been sensitive enough. This investigation undertook to establish the existence of MIT in serum utilizing a radioimmunoassay (RIA), to study the physiology of serum MIT, and to discover the pharmacologic effects of exogenous MIT.

MIT-binding antibody was raised in rabbits by immunization with an MIT-porcine thyroglobulin conjugate. The antiserum bound 40% of the labeled MIT at a final dilution of 1:1000. Incubation of 100 µ1 antiserum with 50 pg [^{125 …}

A Study Of The Mannitol Binding Protein Active Transport System And A Catabolite Repression Resistant Mutant In Pseudomonas Aeruginosa, Joseph Arthur Wolff

Masters Theses

Cold-shock extraction procedures were used for the efficient release of mannitol binding protein. Magnesium chloride and cold-shock released 92% of the total whole cell mannitol binding protein activity without release of detectable cytoplasmic marker protein glucose-6- phosphate dehydrogenase. Arsenate inhibited mannitol uptake to the same extent as azide. The simultaneous loss and gain of mannitol binding protein activity with mannitol uptake activity in mutants and reventants respectively, was consistant with periplasmic mannitol binding protein as a required component of mannitol uptake. A catabolite repression resistant mutant for mannitol uptake was isolated and described. This mutant, designated WEP-1, escaped catabolite repression …

Progress Report For The Dairy Research Advisory Board, Various Authors

Other Documents

No abstract provided.

Ca(Ii)-Calmodulin Regulation Of Fungal Dimorphism In Ceratocystis Ulmi, Ganapathy Muthukumar, Kenneth W. Nickerson

Papers in Microbiology

We have shown that Ca(II) ions, ethylene glycol-bis(β-aminoethyl ether)- N,N-tetraacetic acid, LaCl₃, and six known calmodulin inhibitors shift the yeast-mycelium dimorphic potential of Ceratocystis ulmi. Our data are consistent with the conclusions that Ca(II)-calmodulin interaction is necessary for mycelial growth in C. ulmi and that the absence of this interaction leads to the yeast phase.

Conjugative Plasmid In Corynebacterium Flaccumfaciens Subsp. Oortii That Confers Resistance To Arsenite, Arsenate, And Antimony(Iii), Carol A. Hendrick, William P. Haskins, Anne K. Vidaver

Department of Plant Pathology: Faculty Publications

Gene transfer systems for phytopathogenic corynebacteria have not been reported previously. In this paper we describe a conjugative 46-megadalton plasmid (pDG101) found in Corynebacterium flaccumfaciens subsp. oortii COIOI that mediates resistance to arsenite, arsenate, and antimony(III). Transfer of the plasmid from CO101 to four other strains from the C. flaccumfaciens group occurred between cells immobilized on nitrocellulose filters or on agar surfaces. Transconjugant strains expressed the same levels of metal resistance as the donor strain and were able to act as donor strains in subsequent matings. The physical presence of the plasmid was detected by agarose gel electrophoresis. Arsenite-sensitive derivatives …

The Case For A Legislative Solution To Indian Water Claims, James M. Bush

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

57 pages.