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Articles 9181 - 9210 of 13449
Full-Text Articles in Entire DC Network
Final Environmental Impact Statement To Construct And Operate A Facility To Receive, Store, And Dispose Of 11e.(2) Byproduct Material Near Clive, Utah, United States Nuclear Regulatory Commission
Final Environmental Impact Statement To Construct And Operate A Facility To Receive, Store, And Dispose Of 11e.(2) Byproduct Material Near Clive, Utah, United States Nuclear Regulatory Commission
Final environmental Impact Statements (UT)
A Final Environmental Impact Statement related to the licensing of Envirocare of Utah, Inc.'s proposed disposal facility in Tooele County, Utah, (Docket No. 40-8989) for byproduct material as defined in Section 11e.(2) of the Atomic Energy Act, has been prepared by the Office of Nuclear Material Safety and Safeguards. This statement describes and evaluates (1) the purpose of and need for the proposed action, (2) alternatives considered, and (3) environmental consequences of the proposed action. The Nuclear Regulatory Commission has concluded that the proposed action evaluated under the National Environmental Policy Act of 1969 and 10 CFR Part 51, is …
Organic Extracellular Matrix Components At The Bone Cell/Substratum Interface, X. Shen, E. Roberts, S. A. F. Peel, J. E. Davies
Organic Extracellular Matrix Components At The Bone Cell/Substratum Interface, X. Shen, E. Roberts, S. A. F. Peel, J. E. Davies
Cells and Materials
We have recently shown that differentiating bone cells are capable of elaborating, in vitro, a calcified matrix at the interface with several non-biological substrata which is similar to cement lines found in remodelling bone tissue. From previous morphological observations, this matrix appeared free of assembled collagen fibres which indicated that osteogenic cells produce an initial mineralized matrix before overt collagen fibre production. In the work reported herein, we used six antibodies to extracellular matrix components and two conjugates of secondary antibody, fluorescein and colloidal gold, to initiate a preliminary characterization of the organic components at the bone cell substratum …
Diamond Mountain Resource Area Resource Management Plan And Environmental Impact Statement, Volume Ii, United States Bureau Of Land Management
Diamond Mountain Resource Area Resource Management Plan And Environmental Impact Statement, Volume Ii, United States Bureau Of Land Management
All U.S. Government Documents (Utah Regional Depository)
During the comment period January 3 through April 1, 1992, 286 letters were received on the Draft Diamond Mountain Resource Management Plan and Environmental Impact Statement. However, Several letters were received after the comment period closed and too late to be individually responded to in this document. The concerns and issues raised in these letters have been expressed in other comment letters which have been responded to and which are reprinted here.
Final Environmental Impact Statement Moyer Salt Timber Sale, United States Forest Service
Final Environmental Impact Statement Moyer Salt Timber Sale, United States Forest Service
Final Environmental Impact Statements (ID)
This Final Environmental Impact Statement documents the analysis of the effects of the proposed timber harvesting and related road construction in the 15,360 acre Moyer Salt Analysis Area. The proposed actions are designed to help achieve the silvicultural goals and objectives of the 1988 Salmon National Forest Land and Resource Management Plan (Forest Plan).
A Tutorial And Comprehensive Bibliography On The Identification Of Foreign Bodies Found In Food, D. F. Lewis
A Tutorial And Comprehensive Bibliography On The Identification Of Foreign Bodies Found In Food, D. F. Lewis
Food Structure
The paper presents a philosophical approach to the investigation of foreign body incidents in food. The suggested procedure has similarities with "key" procedures used for taxonomy. However, the wide diversity of materials encountered and the need to determine something of the history of the offending item demands modifications to this process. The categorisation may be made on instinct or experience, and appropriate confirmatory tests will be applied in the light of the initial categorisation. Cardinal rules are proposed: firstly , the receipt of the items should be well documented; and secondly, the initial observations should be as non-destructive as possible. …
Attachment Kinetics And Differentiations Of Osteoblasts On Different Biomaterials, U. Meyer, D. H. Szulczewski, K Moller, H. Heide, D. B. Jones
Attachment Kinetics And Differentiations Of Osteoblasts On Different Biomaterials, U. Meyer, D. H. Szulczewski, K Moller, H. Heide, D. B. Jones
Cells and Materials
Primary bovine osteoblast cell cultures were used to study the response of osteoblasts ton three different biomaterials, ionomeric cement (IC), tri-calcium phosphate poly-L-lactic acid composite foil (TCP) and poly-L-lactate-polycitric acid composite foil (PLA). The cells which grew on the materials produced all typical bone matrix proteins and were osteoblast-Iike as shown by immuno-staining. Analysis of the cell attachment kinetics revealed significant differences within the first 7 hours between the various materials. The best rate of cell attachment was found on the IC surface, followed by the TCP and then the PLA surface. The kinetics of attach ment appeared to be …
Vegetation Of Utah Circ. 1993, Collin Homer, R. Douglas Ramsey, Thomas C. Edwards Jr., Alan Falconer
Vegetation Of Utah Circ. 1993, Collin Homer, R. Douglas Ramsey, Thomas C. Edwards Jr., Alan Falconer
Wildland Resources Faculty Publications
A land cover map for the state of Utah derived from a mosaic of Landsat Thematic Mapper imagery collected over the state in ~1993.
Moose (Alces Alces L.) Browsing In Young Scots Pine Stands In Relation To The Characteristics Of Their Winter Habitats, Risto Heikkila, Sauli Harkonen
Moose (Alces Alces L.) Browsing In Young Scots Pine Stands In Relation To The Characteristics Of Their Winter Habitats, Risto Heikkila, Sauli Harkonen
Aspen Bibliography
Moose (Alces alces L.) browsing was studied in young Scots pine (Pinus sylvestris L.) stands mixed with deciduous trees in high-density winter ranges. The proportional use of twig biomass decreased as the availability increased. The total as well as proportional biomass consumption were higher on the moist than on the dry type of forest. The per tree consumption of pine was higher on the moist type, where the availability of pine was lower. Deciduous trees were more consumed on the moist type, where their availability was relatively high. The consumption of pine saplings increased as the availability of …
Biological Action Of Mycotoxins, Roger A. Coulombe Jr.
Biological Action Of Mycotoxins, Roger A. Coulombe Jr.
Animal, Dairy, and Veterinary Science Faculty Publications
Mycotoxins are ubiquitous, mold-produced toxins that contaminate a wide variety of foods and feeds. Ingestion of mycotoxins cause a range of toxic responses, from acute toxicity to long-term or chronic health disorders. Some mycotoxins have caused outbreaks of human toxicoses, and at least one mycotoxin, aflatoxin B1, is a presumed human hepatocarcinogen. As part of a comprehensive effort to curtail the adverse health effects posed by mycotoxins, substantial research has been conducted to determine the mechanism of action of mycotoxins in animals. This review presents some of the current knowledge on the biological action of four diverse classes of mycotoxins—aflatoxin …
The Nfiii/Oct-1 Binding Site Stimulates Adenovirus Dna Replication In Vivo And Is Functionally Redundant With Adjacent Sequences, Lianna K. Etchberger, P. Hearing
The Nfiii/Oct-1 Binding Site Stimulates Adenovirus Dna Replication In Vivo And Is Functionally Redundant With Adjacent Sequences, Lianna K. Etchberger, P. Hearing
Biology Faculty Publications
The inverted terminal repeat (ITR) of adenovirus type 5 (Ad5) is 103 bp in length and contains the origin of DNA replication. Cellular transcription factors NFI/CTF and NFIII/OCT-1 bind to sites within the ITR and participate in the initiation of viral DNA replication in vitro. The ITR also contains multiple copies of two conserved sequence motifs that bind the cellular transcription factors SP1 and ATF. We have analyzed a series of viruses that carry deletions at the left terminus of Ad5. A virus carrying a deletion of the NFIII/OCT-1, SP1, and ATF sites within the ITR (mutant dl309-44/107) was wild …
Calcospherites In Rabbit Incisor Predentin, H. Mishima, Y. Kunuki, T. Sakae, Y. Kozawa, N. Watabe
Calcospherites In Rabbit Incisor Predentin, H. Mishima, Y. Kunuki, T. Sakae, Y. Kozawa, N. Watabe
Scanning Microscopy
Calcospherites from the lower incisor dentin of rabbits were investigated by scanning and transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS) and electron diffraction analyses. In the labial predentin, globular calcospherites of 8-31 μm were present at the root apex, decreasing in size toward the incisal region. The calcospherites at the intermediate region were of mulberry- as well as of spindle-shape of 1.5-4 μm diameter. The incisal pulp horn contained micro-calcospherites of 0.3-0.6 μmin diameter. In the lingual predentin, small granular calcospherites of 1. 8-3 μm were present at the root apex, increasing in size toward the intermediate region. Ultrathin …
Ultrastructural Features Of Human Reissner's Membrane, Anne De Fraissinette, Heidi Felix, Jannie Nievergelt, Michael Gleeson
Ultrastructural Features Of Human Reissner's Membrane, Anne De Fraissinette, Heidi Felix, Jannie Nievergelt, Michael Gleeson
Scanning Microscopy
Ultrastructural features of human Reissner' s membrane were investigated in two groups of similarly aged patients. Five patients had age-related normal hearing (ARNH) and four patients had acquired sensorineural hearing loss (SNHL) from causes other than age. The membrane consisted of a mesothelium facing the perilymph and an epithelium facing the endolymph. The two cell layers were separated by a basement membrane. The mesothelium was formed by wide spread thin cells with a smooth surface. The epithelial cells assumed two different shapes, flat and rounded. Both epithelial cell types were covered with many short microvilli. In all specimens, the rounded …
Microvascular Architecture Of The Filiform Papillae In Primates And Insectivores, S. Okada, Y. Ohta, N. Matsukawa, S. Sugioka
Microvascular Architecture Of The Filiform Papillae In Primates And Insectivores, S. Okada, Y. Ohta, N. Matsukawa, S. Sugioka
Scanning Microscopy
The microvascular architecture of filiform papillae was investigated under a scanning electron microscope in man, Japanese monkeys, common squirrel monkeys, common marmosets, common tree shrews, large Japanese moles and dwarf shrews utilizing microvascular corrosion casts. Filiform papillae were circularly arranged in primates, and each of them was supplied by a hairpin capillary loop. These papillae sometimes were aggregated. The filiform papillae of Japanese monkeys exhibited markedly locational differences on the lingual dorsum and were supplied by circularly arranged capillary loops or by an intrapapillary capillary network. Small filiform papillae were located on an epithelial eminence in the lingual radix, each …
Recent Advances In Measurement Of Oxalate In Biological Materials, S. Sharma, R. Nath, S. K. Thind
Recent Advances In Measurement Of Oxalate In Biological Materials, S. Sharma, R. Nath, S. K. Thind
Scanning Microscopy
Hyperoxaluria is the predominant risk factor in urinary stone disease. A specific, accurate and reliable oxalate assay for urine and plasma is very important for both the diagnosis and efficient management of patients. A review of the advantages and disadvantages of various methods of oxalate determination is presented and is followed by the authors' recommendations.
Bow Use In The Great Basin, Andrew Ugan
Bow Use In The Great Basin, Andrew Ugan
Undergraduate Honors Capstone Projects
The bow and arrow is a tool with a very long history. In the Old World its use dates back to paleolithic times, with firm evidence in the form of arrow shafts dated to the early ninth millennium b.c. (McEwen, Miller, & Bergman, 1991). More tenuous evidence from projectile points in Africa may push that back as far as 11000 b.c. (Blitz, 1988). The focus of this paper, however, will be the adoption and subsequent use of the bow in the Great Basin region of the West.
Distribution Of Connectin (Titin) And Transverse Tubules At Myotendinous Junctions, Y. Shimada, F. Atsuta, M. Sonoda, M. Shiozaki, K. Maruyama
Distribution Of Connectin (Titin) And Transverse Tubules At Myotendinous Junctions, Y. Shimada, F. Atsuta, M. Sonoda, M. Shiozaki, K. Maruyama
Scanning Microscopy
The ends of muscle fibers form many longitudinal projections which are further divided into numerous processes and attach to the collagen fibrils of tendons to form myotendinous junctions (MTJs). Immunocytochemical and electron microscopic observations on pectoralis muscles of the chicken revealed the presence of an elastic filamentous protein, connectin (titin), within the terminal sarcomere on the side adjacent to the terminal Z bands, and the absence of connectin and myosin and the presence of actin at the apical sarcoplasmic region of MTJ processes between the terminal Z band and the MTJ sarcolemma. Intermediate voltage electron microscopy showed that T tubules …
Cellular Interactions In Hemopoietic Progenitor Cell Homing: A Review, Cheryl L. Hardy, Jose J. Minguell
Cellular Interactions In Hemopoietic Progenitor Cell Homing: A Review, Cheryl L. Hardy, Jose J. Minguell
Scanning Microscopy
Within the bone marrow microenvironment, dynamic cellular interactions are constantly occurring. These interactions involve hemopoietic stem cells, progenitor cells and maturing cells, physically interacting with other cells, some of which may function as accessory cells, and others which comprise the stromal elements; hemopoietic cells also interact with non-cellular elements, such as glycoproteins and fibrous proteins of the extracellular matrix (ECM). These interactions serve to regulate normal hemopoiesis by allowing the communication of regulatory information, migration and subsequent homing of stem cells within specific organs, and presentation of hemopoietic growth factors in a biologically relevant fashion. The goal of this review …
Insights, Winter, 1992, Utah State University
Insights, Winter, 1992, Utah State University
Discovery Magazine
Bi-annual alumni newsletter for the College of Science of Utah State University in Logan.
Retinol Deficiency And Urinary Stone Disease: Clinical Evidence Is Missing, P. P. Singh, R. Kiran
Retinol Deficiency And Urinary Stone Disease: Clinical Evidence Is Missing, P. P. Singh, R. Kiran
Scanning Microscopy
Serum retinal levels were studied in : (a) 95, 56 and 43 normal subjects belonging to lower, middle and upper socio-economic groups respectively, (b) 35 adult males suffering from night blindness, (c) 27 subjects with low retinal levels, (d) 8 retinal deficient subjects (e) 17 male infants suffering from overt retinal deficiency, (f) 43 radiologically confirmed stone patients and (g) age and sex matched controls (infants 20; adults 120). The subjects included in groups b to f were clinically and radiologically examined for stone disease. Some inhibitors and promoters of stone disease were estimated in urine in groups b to …
Strontium, A Tracer To Study The Transport Of Calcium In Mineralizing Tissues By Electron Probe Microanalysis, Ernst-Rudolf Krefting, Kai Frentzel, Jörg Teßarek, Hans-Jürgen Höhling
Strontium, A Tracer To Study The Transport Of Calcium In Mineralizing Tissues By Electron Probe Microanalysis, Ernst-Rudolf Krefting, Kai Frentzel, Jörg Teßarek, Hans-Jürgen Höhling
Scanning Microscopy
In growth plate cartilage the mineralization starts extracellularly in the lower hypertrophic zone. The mineral formed is the calcium phosphate apatite. Enough calcium and phosphate must be available at the mineralization front as well as in regions with proceeding mineralization. There must be a transport of Ca (and phosphate) to these sites.
Electron probe X-ray microanalysis is a well established method to analyze element concentrations in small volumes, but it cannot discriminate isotopes. Strontium is similar to Ca in its chemical and biological behaviour and is therefore a suitable tracer to investigate the transport of Ca.
Small amounts of Sr …
Review: Morphological Changes Associated With Endolymphatic Hydrops, K. C. Horner
Review: Morphological Changes Associated With Endolymphatic Hydrops, K. C. Horner
Scanning Microscopy
Endolymphatic hydrops of the inner ear is identified as a swelling of the endolymphatic spaces. This morphopathology in man can only be confirmed at postmortem examination although it is believed to underlie the auditory dysfunction and vestibular disturbances associated with Menière's disease. This is an illusive inner ear disorder characterized typically by the fluctuant hearing loss, tinnitus and episodes of vertigo. Menière's disease remains a major problem in otorhinolaryngology since the cause of the disease is not known and various treatments are recommended, often with unsatisfactory results. Experimentally induced endolymphatic hydrops in the animal model has been developed in order …
Mercox®-Methylmethacrylic Acid Mixture Penetrates Into Cells. A Scanning And Transmission Electron Microscopic Study, S. Aharinejad, P. Böck
Mercox®-Methylmethacrylic Acid Mixture Penetrates Into Cells. A Scanning And Transmission Electron Microscopic Study, S. Aharinejad, P. Böck
Scanning Microscopy
During preparation of vascular casts using mixtures of Mercox® and methylmethacrylic acid for scanning electron microscopy, occasionally irregular structures were observed adhering to otherwise well prepared corrosion casts. These artifacts were further analyzed in sections of cast preparations. The bizarre-shaped structures varied in size and were often tightly connected to vascular casts; they withstood KOH maceration and cleaning with formic acid. The persistence of biological material, connective tissue fibers and cells or cellular fragments, became obvious in ultrathin sections. Transmission electron microscopy also showed inhomogeneity of the polymerized casting medium (Mercox®-methylmetbacrylate mixture; v/v: 4:1). An unidentified com-pound of this resin …
Exact Enumeration And Scaling For Fragmentation Of Percolation Clusters, Boyd F. Edwards, M. F. Gyure, M. V. Ferer
Exact Enumeration And Scaling For Fragmentation Of Percolation Clusters, Boyd F. Edwards, M. F. Gyure, M. V. Ferer
All Physics Faculty Publications
The fragmentation properties of percolation clusters yield information about their structure. Monte Carlo simulations and exact cluster enumeration for a square bond lattice and exact calculations for the Bethe lattice are used to study the fragmentation probability as(p) of clusters of mass s at an occupation probability p and the likelihood bs′s(p) that fragmentation of an s cluster will result in a daughter cluster of mass s′. Evidence is presented to support the scaling laws as(pc)∼s and bs′s(pc)=s-φg(s′/s), with φ=2-σ given by the standard cluster-number scaling …
Evaluation And Management Of Dietary Habits In Japanese Renal Stone Formers, Haruo Ito, Tadashi Kotake, Naoto Miura
Evaluation And Management Of Dietary Habits In Japanese Renal Stone Formers, Haruo Ito, Tadashi Kotake, Naoto Miura
Scanning Microscopy
To elucidate the relationship between the formation of kidney stones and diet, we carried out a dietary investigation in patients with urinary tract stones. Dietary intakes were estimated for 36 patients (24 men, 12 women) with calcium stones, and compared with the official dietary requirements for the Japanese.
Total protein intake, animal protein intake and animal protein ratio were significantly higher for patients with stones in both men and women. Dietary salt intake was significantly higher for male patients and the total group. Dietary calcium and carbohydrate intakes were significantly lower for patients with stones in men and the total …
Ultrastructural Effects Of Therapeutic Irradiation On Human Epithelial Tumors, P. Kellokumpu-Lehtinen
Ultrastructural Effects Of Therapeutic Irradiation On Human Epithelial Tumors, P. Kellokumpu-Lehtinen
Scanning Microscopy
Irradiation induces several cellular changes leading to death of cancer cells and normal cells which is followed by repairing processes of normal cells. We have studied the effects of therapeutic irradiation on head and neck cancers. Tissue samples taken before and during the radical irradiation (50-80 Gy) of the squamous cell carcinomas of the head and neck region were examined by light and electron microscopy. Nuclear atypia was most pronounced cellular change during irradiation. The tumor invasion pattern remained unchanged but the number of mitoses decreased. Lymphocytic infiltration increased at the beginning of the therapy (from 10 to 30 Gy) …
Importance Of Mild Hyperoxaluria In The Pathogenesis Of Urolithiasis - New Evidence From Studies In The Arabian Peninsula, W. G. Robertson, H. Hughes
Importance Of Mild Hyperoxaluria In The Pathogenesis Of Urolithiasis - New Evidence From Studies In The Arabian Peninsula, W. G. Robertson, H. Hughes
Scanning Microscopy
The hypothesis that mild hyperoxaluria is more important than hypercalciuria in the pathogenesis of urolithiasis is re-examined in the light of new evidence. Small increments in urinary oxalate in the normal to high-normal range are much more critical than similar rises in urinary calcium for increasing the relative supersaturation of urine with respect to calcium oxalate, the oxalate/calcium ratio in urine, the total volume of calcium oxalate crystals excreted, the proportion of abnormally large crystals and aggregates of calcium oxalate and the severity of the disorder as defined by the recurrence rate of stone-formation. Data from the Arabian Peninsula, where …
Effect Of Chronic Treatment With Diuretics On Mouse Liver: A Morphological And Microanalytical Investigation, Ann-Christin Mork, Anne Von Euler, Godfried M. Roomans
Effect Of Chronic Treatment With Diuretics On Mouse Liver: A Morphological And Microanalytical Investigation, Ann-Christin Mork, Anne Von Euler, Godfried M. Roomans
Scanning Microscopy
In an attempt to produce an animal model for the disease cystic fibrosis (CF), mice were treated chronically with the diuretics amiloride and furosemide, in order to cause chronic inhibition of transepithelial ion transport. Experiments were carried out on adult mice (2 months treatment); in addition, pregnant mice were treated with diuretics, and tissue from offspring 2 and 7 days post partum was investigated. Since biliary cirrhosis is a common occurrence in CF, hepatocytes in the treated mice were investigated by X-ray microanalysis and by light and electron microscopy.
Treatment with amiloride caused a significant decrease in cellular Na concentration …
Dentinogenesis And The Calciotraumatic Response To The Injection Of Lead Or Fluoride Ions, John Appleton
Dentinogenesis And The Calciotraumatic Response To The Injection Of Lead Or Fluoride Ions, John Appleton
Scanning Microscopy
A number of ions can disturb the formation of dentine resulting in a calciotraumatic response. The calciotraumatic response following the injection of sodium fluoride was investigated using backscattered electron imaging in the scanning electron microscope and compared with the response to lead acetate. With fluoride, there was formation of a hypermineralized band succeeded by a relatively hypomineralized band, but with lead acetate, only a hypomineralized band was produced. However, there were some differences in the response between the labial and lingual dentine with both ions. In the labial dentine following injection of sodium fluoride, the onset of hypermineralization was less …
Scanning Electron Microscope Observations Of Brine Shrimp Larvae From Space Shuttle Experiments, Lynnette Debell, Avelina Paulsen, Brian Spooner
Scanning Electron Microscope Observations Of Brine Shrimp Larvae From Space Shuttle Experiments, Lynnette Debell, Avelina Paulsen, Brian Spooner
Scanning Microscopy
Brine shrimp are encysted as gastrula stage embryos, and may remain dehydrated and encysted for years without compromising their viability. This aspect of brine shrimp biology is desirable for studying development of animals during space shuttle flight, as cysts placed aboard a spacecraft may be rehydrated at the convenience of an astronaut, guaranteeing that subsequent brine shrimp development occurs only on orbit and not on the pad during launch delays.
Brine shrimp cysts placed in 5 ml syringes were rehydrated with salt water and hatched during a 9 day space shuttle mission. Subsequent larvae developed to the 8th larval stage …
Microvasculature Of Normal And Hydropic Labyrinth, Yoshiaki Nakai, Haruhiko Masutani, Makoto Moriguchi, Kazuhiro Matsunaga, Akihumi Kato, Hitoshi Maeda
Microvasculature Of Normal And Hydropic Labyrinth, Yoshiaki Nakai, Haruhiko Masutani, Makoto Moriguchi, Kazuhiro Matsunaga, Akihumi Kato, Hitoshi Maeda
Scanning Microscopy
The microvasculature of the inner ear in guinea pigs and humans was observed with a scanning electron microscope using corrosion casting method. Alterations in the inner ear vasculature which occurred in association with experimental endolymphatic hydrops were also investigated. The results thus obtained are summarized as follows:
1. In the cochlea and vestibule, the arteries, coiled arterioles, and the veins are endowed with their respective characteristic morphologic features and play a role in the regulatory mechanisms of circulation.
2. The point in humans which is most different from guinea pigs was that coiled arterioles in the cochlea and the coil-like …