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The Role Of Surface Characteristics In The Initial Adhesion Of Human Bone-Derived Cells On Ceramics, H. Zreiqat, O. C. Standard, T. Gengenbach, J. G. Steele, C. R. Howlett Jan 1996

The Role Of Surface Characteristics In The Initial Adhesion Of Human Bone-Derived Cells On Ceramics, H. Zreiqat, O. C. Standard, T. Gengenbach, J. G. Steele, C. R. Howlett

Cells and Materials

The tissue/biomaterial interactions of three biomaterials of potential use in bone implants were studied in vitro. The mechanism of cell adherence to various ceramic substrata has been investigated by measurement of short term (90 minutes) cell attachment and spreading rate. We have determined the effect of two serum glycoproteins, fibronectin and vitronectin, on the adhesion of human bone derived cells (HBD-cells) cultured on three different types of ceramics {alumina (Al2O3), hydroxyapatite (HAP) and yttria-doped tetragonal zirconia polycrystal (Y-TZP)} . The attachment of HBD-cells to alumina and hydroxyapatite was approximately 60% of that to Y-TZP. Furthermore, …

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The Influence Of A Fibrin-Coating Inside A Biodegradable Poly(Dl-Lactide-Ε-Caprolactone) Nerve Guide On Peripheral Nerve Regeneration, W. F. A. Den Dunnen, J. M. Schakenraad, B. Van Der Lei, A. J. Pennings, P. H. Robinson Jan 1996

The Influence Of A Fibrin-Coating Inside A Biodegradable Poly(Dl-Lactide-Ε-Caprolactone) Nerve Guide On Peripheral Nerve Regeneration, W. F. A. Den Dunnen, J. M. Schakenraad, B. Van Der Lei, A. J. Pennings, P. H. Robinson

Cells and Materials

The aim of this study was to evaluate the effect of a fibrin-coating on the inner surface of a biodegradable poly(DL-lactide-E-caprolactone) nerve guide on the speed and quality of the nerve regeneration. The nerve regeneration and orientation of the nerve fibers, as well as the fibrous tissue formation were evaluated. On the short term, nerve regeneration was slightly faster in the non-coated nerve guide. After longer implantation periods (≥ 4 weeks), nerve regeneration in the fibrin-coated nerve guides was characterized by a severe inflammatory response with large numbers of macrophages and polymorphonuclear cells (PMN's). This study clearly demonstrates that nerve …

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Collagen Fibres Are Not Required For Initial Matrix Mineralization By Bone Cells, M. M. Hosseini, S. A. F. Peel, J. E. Davies Jan 1996

Collagen Fibres Are Not Required For Initial Matrix Mineralization By Bone Cells, M. M. Hosseini, S. A. F. Peel, J. E. Davies

Cells and Materials

Passaged primary cultures of young adult rat bone marrow cells were maintained in medium containing combinations of the supplements dexamethasone, ascorbic acid and Na-ß-glycerophosphate. The cultures were examined by both light and scanning electron microscopy (with additional energy dispersive X-ray analysis). In cultures with fully supplemented medium, an extracellular matrix formed at the culture dish surface, beneath developing bone nodules; this matrix was mineralized but collagen-fibre free and corresponded to that which we have reported previously as the equivalent of the cement line in vivo. In selected samples this interfacial, cement line, matrix was analyzed by X-ray …

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Physical And Biological Evaluation Of Hydroxylapatite Films Formed On Ti6a14v Substrates By Excimer Laser Ablation, Tatjana Dostálová, Miroslav Jelínek, Lucie Himmlová, Vlasta Pesáková, Milan Adam Jan 1996

Physical And Biological Evaluation Of Hydroxylapatite Films Formed On Ti6a14v Substrates By Excimer Laser Ablation, Tatjana Dostálová, Miroslav Jelínek, Lucie Himmlová, Vlasta Pesáková, Milan Adam

Cells and Materials

Thin films of hydroxylapatite, about 500 nm, were formed on Ti6Al4V by excimer laser ablation. Ten different deposition conditions were used such as deposition atmosphere (vacuum, pure water vapor, mixture of Ar and water vapor), substrate temperature, target-substrate distance and energy density. Mechanical and physical analyses were carried out by Rutherford backscattering and particle induced X-ray emission; crystallinity of films was determined by X-ray diffraction, surface topography by scanning electron microscopy and adhesion by a scratch test. Biological evaluation of samples was also performed. The fibroblast proliferation test was used, morphological evaluation of macrophages was carried out, and the activity …

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1995 Annual Report, Various Authors Jan 1996

1995 Annual Report, Various Authors

Annual Reports

No abstract provided.

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Biofilm Mediated Calculus Formation In The Urinary Tract, Robert J. C. Mclean, David J. Stickler, J. Curtis Nickel Jan 1996

Biofilm Mediated Calculus Formation In The Urinary Tract, Robert J. C. Mclean, David J. Stickler, J. Curtis Nickel

Cells and Materials

Mineralization and subsequent calculus formation is a common complication of biofilm infections. In the urinary tract, these infected calculi often arise from infections by urease-producing bacteria. Ammonia, liberated by bacterial urease activity, increases urine pH, resulting in the precipitation of Ca and Mg as carbonateapatite {Ca10(PO4,CO3)6(OH,CO3)2} and struvite (NH4MgP04·6H2O). These minerals become entrapped in the organic matrix which surrounds the infecting organisms and ultimately grow into mature calculi. When the causative organisms grow on urinary catheters and stents, the resulting mineralization can …

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Emery County High-Value Agribusiness Diversification Study, Deevon Bailey, Yasmin Adam, Norris J. Stenquist Jan 1996

Emery County High-Value Agribusiness Diversification Study, Deevon Bailey, Yasmin Adam, Norris J. Stenquist

Economic Research Institute Study Papers

This research examined the economic feasibility of various value-added alternatives of major crop and livestock enterprises in Emery County, Utah. The results suggest that building a stockyard facility where feeder cattle could be sorted and pooled for sale would be a net economic benefit to the county. Building a 400-head capacity beefpacking plant would likely not be feasible in Emery County. Ajamljelly plant would likely be profitable ifit were built in Green River and its products sold in Moab as well as in the Green River area.

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Wildlife Damage Management (Wdm) In The Northern Utah Adc District, United States Department Of Agriculture, Animal And Plant Health Inspection Service, Animal Damage Control Jan 1996

Wildlife Damage Management (Wdm) In The Northern Utah Adc District, United States Department Of Agriculture, Animal And Plant Health Inspection Service, Animal Damage Control

All U.S. Government Documents (Utah Regional Depository)

Across the United States, wildlife habitat has been substantially changed as human populations expand and land is used for human needs. These human uses and needs often compete with wildlife which increases the potential for conflicting human/wildlife interactions. In addition, segments of the public strive for protection for all wildlife; this protection can create localized conflicts between human and wildlife activities.

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Perturbations Of Periosteel Bone During Healing: Effect Of Non-Weight Bearing, Helen E. Gruber, Mary E. Kirchen, John R. Sweeney, William E. Anderson, G. June Marshall Jan 1996

Perturbations Of Periosteel Bone During Healing: Effect Of Non-Weight Bearing, Helen E. Gruber, Mary E. Kirchen, John R. Sweeney, William E. Anderson, G. June Marshall

Cells and Materials

Weight bearing (WB) is an important factor influencing bone remodelling. The present study evaluates the effects of weight bearing and non-weight bearing (S) (achieved by tail suspension and hindlimb elevation) on the healing of a fibular osteotomy in adult male rats. After 9, 18 or 36 days under WB or S conditions, periosteum near the callus formed at the osteotomy site was compared to periosteum of the contralateral fibula (which did not receive an osteotomy) or to periosteum of fibula of control animals which did not receive an osteotomy. Data show that periosteal bone healing is sensitive to alterations in …

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A Composite Biomaterial: Poly 2 (Hydropoxyethyl) Methacrylate / Alkaline Phosphatase Initiates Mineralization In Vitro, R. Filmon, D. Chappard, J. P. Monthéard, M. F. Baslé Jan 1996

A Composite Biomaterial: Poly 2 (Hydropoxyethyl) Methacrylate / Alkaline Phosphatase Initiates Mineralization In Vitro, R. Filmon, D. Chappard, J. P. Monthéard, M. F. Baslé

Cells and Materials

Bone substitutes are nowadays largely used in orthopedic surgery but they lack osteoinductive properties. Poly (2-hydroxyethyl methacrylate) (pHEMA) has numerous biomedical applications. Alkaline phosphatase (AlkP), an ectoenzyme elaborated by osteoblasts, initiates bone mineralization by hydrolyzing organic phosphates before calcium-phosphorus deposition. We have immobilized AlkP in pHEMA in a copolymerization technic. Histochemical study revealed that AlkP has retained its biological activity . Image analysis of sections using a tessellation method showed a lognormal distribution of the area of tessels around AlkP particles thus confirming an homogeneous distribution of the enzyme in the polymer. Pellets of pHEMA and pHEMA + AlkP were …

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The Effect Of Vitronectin And Other Extracellular Matrix Molecules On Endothelial Expansion And Plasminogen Activation, P. Anne Underwood, Penny A. Bean Jan 1996

The Effect Of Vitronectin And Other Extracellular Matrix Molecules On Endothelial Expansion And Plasminogen Activation, P. Anne Underwood, Penny A. Bean

Cells and Materials

Endothelial recovery following procedures used to alleviate blood vessel occlusion is modulated by the local extracellular matrix upon which it has to migrate and proliferate. This extracellular material is derived from vessel wall cells, and plasma proteins which bind to the exposed surfaces. We have demonstrated that vitronectin adsorbs efficiently to tissue culture polystyrene in competition with other plasma proteins, which suggests that it may adsorb to biomaterial surfaces in vivo. We have compared the adhesion, migration and proliferation of human umbilical artery endothelial cells on surface-coated vitronectin, with other extracellular matrix molecules encountered in this environment, namely fibronectin, …

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Appendix 1 Public Comments And Forest Service Responses To The Environmental Assessment For 36 Livestock Grazing Allotments On The Shoshone National Forest, United States Forest Service Jan 1996

Appendix 1 Public Comments And Forest Service Responses To The Environmental Assessment For 36 Livestock Grazing Allotments On The Shoshone National Forest, United States Forest Service

All U.S. Government Documents (Utah Regional Depository)

Forest Service Regulations (36 CFR 215.6d) require publication of this appendix. Material in this appendix addresses comments received from the public during the comment period for the Environmental Assessment for 36 Livestock Grazing Allotments on the Shoshone National Forest. This appendix will be attached to any Decision Notices that may result.

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South Manti Timber Salvage Sales Environmental Assessment, United States Forest Service Jan 1996

South Manti Timber Salvage Sales Environmental Assessment, United States Forest Service

All U.S. Government Documents (Utah Regional Depository)

This environmental assessment (EA) is intended to foster informed decision making and public participation on a site-specific proposal to implement activities designed to meet the purpose and need and goals and objectives of the Manti-La Sal National Forest Land and Resources Management Plan (Forest Plan). This EA discloses the direct, indirect, and cumulative environmental impacts of three action alternatives for timber harvest and road construction, and a no action alternative on portions of the Ferron/Price and Sanpete Ranger Districts, Manti-La Sal National Forest in Sanpete and Sevier Counties, Utah. The area to be analyzed in support of this decision includes …

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Forb And Shrub Seed Production Guide For Utah, Richard Stevens, Kent R. Jorgensen, Stanford A. Young, Stephen B. Monsen Jan 1996

Forb And Shrub Seed Production Guide For Utah, Richard Stevens, Kent R. Jorgensen, Stanford A. Young, Stephen B. Monsen

All Archived Publications

No abstract provided.

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Bats, Veda Depaepe, Terry A. Messmer, Michael R. Conover Jan 1996

Bats, Veda Depaepe, Terry A. Messmer, Michael R. Conover

All Archived Publications

No abstract provided.

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Overview Of Techniques For Reducing Bird Predation At Aquaculture Facilities, Kimberly S. Curtis, William C. Pitt, Michael R. Conover Jan 1996

Overview Of Techniques For Reducing Bird Predation At Aquaculture Facilities, Kimberly S. Curtis, William C. Pitt, Michael R. Conover

All Archived Publications

No abstract provided.

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Desert Plants Of Utah, Berniece A. Andersen Jan 1996

Desert Plants Of Utah, Berniece A. Andersen

All Archived Publications

No abstract provided.

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Remember To Include Art And Crafts In Your Integrated Curriculum, Martha Taylor Dever, E. R. Jared Jan 1996

Remember To Include Art And Crafts In Your Integrated Curriculum, Martha Taylor Dever, E. R. Jared

Teacher Education and Leadership Faculty Publications

Discusses ways that arts and crafts can be integrated into content learning activities. Describes activities in a unit on animals in winter, noting that arts and crafts present an opportunity for children to demonstrate learning in new ways. (JW)

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Postings On A Genre Of E-Mail, Michael Spooner, Kathleen Yancey Jan 1996

Postings On A Genre Of E-Mail, Michael Spooner, Kathleen Yancey

Library Faculty & Staff Publications

I was talking with a novelist recently about various kinds of writing-nothing special, just happy-hour talk-and I found my earnest self assuring him that, oh yes, academic writing nowadays will tolerate a number of different styles and voices. (I should know, right? I'm in academic publishing.) He choked; he slapped my arm; he laughed out loud. I don't remember if he spit his drink back in the glass. Silly me, I was serious. And, among other things, I was thinking about this essay/dialogue, in which we're turning discourse conventions of the net - often a rather casual medium - to …

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County, Colorado, Prowers County, Colorado Watershed Plan And Environmental Assessment, Bent Soil Conservation District, Natural Resources Conservation Service Jan 1996

County, Colorado, Prowers County, Colorado Watershed Plan And Environmental Assessment, Bent Soil Conservation District, Natural Resources Conservation Service

Environmental Assessments (NV)

No abstract provided.

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Decision Record And Finding Of No Significant Impact For Sodium Leasing In The Green River Basin Of Southwestern Wyoming, United States Department Of The Interior Bureau Of Land Management Jan 1996

Decision Record And Finding Of No Significant Impact For Sodium Leasing In The Green River Basin Of Southwestern Wyoming, United States Department Of The Interior Bureau Of Land Management

Record of Decisions (WY)

The BLM is charged with leasing federal mineral resources. BLM is proposing to hold a sodium lease sale of seven tracts incorporating a total of 9,893.91 acres as shown on Map 1. Federal sodium leases are issued based upon a system of closed competitive bids. The highest bidder may receive the lease provided the bid meets or exceeds fair market value. Leases have a 20-year primary term with discretionary 10-year renewal periods thereafter. A federal sodium lease is not automatically renewed but may be renewed upon the lessee's timely request for renewal. All leases adjudicated for renewal are reviewed and …

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Final Environmental Impact Statement, Grass Creek Planning Area Resource Management Plan, Volume 1 Of 2, United States Department Of The Interior Bureau Of Land Management Jan 1996

Final Environmental Impact Statement, Grass Creek Planning Area Resource Management Plan, Volume 1 Of 2, United States Department Of The Interior Bureau Of Land Management

Final Environmental Impact Statements (WY)

This final environmental impact statement (EIS) describes the proposed Grass Creek Resource Management Plan (RMP) and its environmental consequences. This proposed plan is for the future management of public lands in a portion of the Bighorn Basin Resource Area of the Worland District of the Bureau of Land Management (BLM). The planning area comprises approximately 968,000 acres of BLM-administered public land surface and 1,171,000 acres of BLM-administered federal mineral estate. (BLM-administered public land surface is referred to as "public land" in this document.)

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Commercialization Of Wild Game Ranching: Enterprise Budgets, Donald Snyder Jan 1996

Commercialization Of Wild Game Ranching: Enterprise Budgets, Donald Snyder

Economic Research Institute Study Papers

No abstract provided.

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Quicken As A Farm Accounting System: A Lesson Plan On Cash Basis Recordkeeping With Accrual-Adjusted Financial Statements, Larry K. Bond Jan 1996

Quicken As A Farm Accounting System: A Lesson Plan On Cash Basis Recordkeeping With Accrual-Adjusted Financial Statements, Larry K. Bond

Economic Research Institute Study Papers

The purpose of this document is to demonstrate how Quicken, a popular checkbook management software program, can be used to keep a set of records for the farm business that will measure profits, liquidity, and solvency. This is a revision of ERI 95-02, with more detailed explanations. All graphics have been eliminated and fonts have been changed so this document can be printed on most printers. It is based on an example farm used in the Business Management in Agriculture (BMA) series of videos and workbooks developed in the late 1980s, and draws on materials prepared by Dr. Ken Stokes …

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Collections Summary For Dugway Proving Ground, Utah, U.S. Army Corps Of Engineers Jan 1996

Collections Summary For Dugway Proving Ground, Utah, U.S. Army Corps Of Engineers

Elusive Documents

No abstract provided.

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Winter Quarters, Maurine Carr Ward Jan 1996

Winter Quarters, Maurine Carr Ward

All USU Press Publications

Mary Richard's journals and letters record a young woman's rare, but richly detailed view of life in the temporary Mormon pioneer communities in Iowa.

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Pluralism, Science, Ethics, And The Intersecting Spheres Of Social Concerns And Environmentalism, Christopher B. Barrett, Raymond E. Grizzle Jan 1996

Pluralism, Science, Ethics, And The Intersecting Spheres Of Social Concerns And Environmentalism, Christopher B. Barrett, Raymond E. Grizzle

Economic Research Institute Study Papers

This paper builds on alternative perspectives offered by the environmental and sustainability traditions to advance a holistic yet practical conceptual model that explicitly integrates social and environmental concerns. Ours is a pluralistic approach founded on synthesis. Employing the economic concept of path dependence, we emphasize that there exist multiple paths society can follow in environmental ethics and policy, but that onc e one has been chosen, implicitly or explicitly, there may be little opportunity to reverse such choices. Hence, the importance of process to the pursuit of social and environmental objectives.

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The Law Of Markets As Enunciated By Jean-Baptiste Say, L. Dwight Israelsen, Kenneth K. Sanders Jan 1996

The Law Of Markets As Enunciated By Jean-Baptiste Say, L. Dwight Israelsen, Kenneth K. Sanders

Economic Research Institute Study Papers

Supply creates its own demand. So reads the common, terse rendering of Say's Law of Markets. With such philosophical abbreviations, it can be of little wonder why the economic logic contained in the Law of Markets has been misunderstood, disparaged, and completely disavowed by the majority of economists for the past five decades. Adherents, as well as detractors, seemingly have not understood it. An example of recent vintage is George Gilder, a neoconservative "economic theorist" who, in confusion, found John Kenneth Galbraith rediscovering Say's Law-business creates consumer desires, hence, consumer demand. Joseph Schumpeter even made the claim that J.-B. Say …

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An Analysis Of Iodine Deficiency Disorder And Eradication Strategies In The High Atlas Mountains Of Morocco, Elizabeth Anne Oldham, Christopher B. Barrett, Sabah Benjelloun, Brahim Ahanou Jan 1996

An Analysis Of Iodine Deficiency Disorder And Eradication Strategies In The High Atlas Mountains Of Morocco, Elizabeth Anne Oldham, Christopher B. Barrett, Sabah Benjelloun, Brahim Ahanou

Economic Research Institute Study Papers

The population of the Ounein Valley in the High Atlas Mountains in Morocco is at high risk of iodine deficiency. We investigated local children's iodine deficiency and goiterpattems as well as food consumption habits through a household survey. Median urinary iodine content and goiter analysis both reflect moderate iodine deficiency. Total fish consumption has a statistically significant, positive effect on urinary iodine content. Fish consumption, like that of salt, is closely related to market access. Respondents are uniformly unaware of the dietary etiology of goiter. An effective strategy to reduce the high incidence of iodine deficiency disorder among children in …

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Enron Burly Development Well No. 58-18d Finding Of No Significant Impact And Decision Record, United States Department Of The Interior Bureau Of Land Management Jan 1996

Enron Burly Development Well No. 58-18d Finding Of No Significant Impact And Decision Record, United States Department Of The Interior Bureau Of Land Management

Record of Decisions (WY)

The proposed well, Burly 58-18D, is located on private surface on a steep slope above fogarty Creek and within view of identified crucial elk winter range. The Burly project is located west of Mobil's office on the Calpet Highway between Big Piney and LaBarge, Wyoming.

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