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The Role Of Surface Roughness For Implant Incorporation In Bone, A. Wennerberg

Cells and Materials

A careful topographical characterization is important for reliable interpretation of the role of implant surface roughness in bone incorporation. In this paper, the currently available measuring instruments and evaluation techniques are described and discussed first, than literature on the role of surface roughness for cell and bone tissue reactions in vitro and, with special emphasis, the in vivo studies are reviewed. Finally, the results from a series of the authors own animal studies evaluating screw-shaped implants with different surface roughnesses are summarized. The results demonstrated firmer bone fixation for blasted implants than for turned ones. A blasted surface with an …

Preliminary In Vivo Studies Of A New Injectable Bone Substitute, F. Millot, G. Grimandi, P. Weiss, G. Daculsi

Cells and Materials

Calcium-phosphate materials have been increasingly employed in orthopedic and dental applications in recent years and are now being developed for use in noninvasive surgery or as carriers for drug delivery systems. We developed an injectable bone substitute (IBS) for percutaneous orthopedic surgery which uses a biphasic calcium-phosphate (BCP) mixture composed of hydroxyapatite (60%) and ß-tricalcium phosphate (40%), together with a polymer (hydroxy-propyl-methyl-cellulose, HPMC) as a carrier. The best BCP/polymer ratio was determined to achieve the highest mineral phase in the composite and provide the rheological properties required for injectable material.

The in vivo biocompatibility and biofunctionality of IBS were …

The Voices From Chitwan: Some Examples Of The Tharus' Oral Tradition, Ulrike Müller-Böker

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Aquilegia, Vol. 23 No. 2, March-April 1999: Newsletter Of The Colorado Native Plant Society, Leo P. Bruederle, Rick Brune, Janet L. Wingate, Kris Meiring, Carolyn Crawford

Aquilegia - Colorado Native Plant Society

No abstract provided.

Aquilegia, Vol. 23 No. 3, May-June 1999: Newsletter Of The Colorado Native Plant Society, Leo P. Bruederle, Bill Jennings, Carolyn Crawford, Richard G. Beidleman, Barbara Ertter, Nicola Ripley, Janet L. Wingate

Aquilegia - Colorado Native Plant Society

No abstract provided.

Aquilegia, Vol. 23 No. 4, July-August 1999: Newsletter Of The Colorado Native Plant Society, Leo P. Bruederle, Bill Jennings, Clement Atis, Gary Bentrup, Janet L. Wingate

Aquilegia - Colorado Native Plant Society

No abstract provided.

Aquilegia, Vol. 23 No. 5, September-October 1999: Newsletter Of The Colorado Native Plant Society, Leo P. Bruederle, Alice Guthrie, Vera Smith, Neil Snow, Bill Jennings, Caryl Shields, Hilary Davis, William A. Weber, Donald L. Hazlett, Carolyn Crawford, Kris Meiring, Mark Mohlenbrock

Aquilegia - Colorado Native Plant Society

No abstract provided.

Aquilegia, Vol. 23 No. 6, November-December 1999: Newsletter Of The Colorado Native Plant Society, Leo P. Bruederle, Rick Brune

Aquilegia - Colorado Native Plant Society

No abstract provided.

University Of Southern Maine Graduate Catalog 1999-2000, University Of Southern Maine

Course Catalogs

No abstract provided.

Habitat Associations Of Migrating And Overwintering Grassland Birds In Southern Texas, Lawrence D. Igl, Bart M. Ballard

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We report on the habitat associations of 21 species of grassland birds over- wintering in or migrating through southern Texas, during 1991-1992 and 1992-1993. Ninety percent of our grassland bird observations were made during winter and spring, and only 10% occurred during fall. Grassland species made up a high proportion of the total bird densities in grassland and shrub-grassland habitats, but much lower proportions in the habitats with more woody vegetation. Fewer grassland species were observed in grassland and woodland than in brushland, parkland, and shrub-grassland habitats. Grassland birds generally were found in higher densities in habitats that had woody …

Influence Of Aqueous And Solid-Phase Fe(Ii) Complexants On Microbial Reduction Of Crystalline Iron(Iii) Oxides, Matilde Urrutia, Eric E. Roden, John M. Zachara

United States Department of Energy: Publications

The influence of aqueous (NTA and EDTA) and solidphase (aluminum oxide, layer silicates) Fe(II) complexants on the long-term microbial reduction of synthetic goethite by Shewanella alga strain BrY was studied. NTA enhanced goethite reduction by promoting aqueous Fe(II) accumulation, in direct proportion to its concentration in culture medium (0.01-5 mM). In contrast, EDTA failed to stimulate goethite reduction at concentrations e1 mM, and 5 mM EDTA enhanced the final extent of reduction by only 25% in relation to nonchelator controls. The minor effect of EDTA compared to NTA, despite the greater stability of the Fe(II)- EDTA complex, likely resulted from …

Application Of Polymerase Chain Reaction To The Diagnosis Of Infectious Diseases, David N. Fredricks, David A. Relman

United States Department of Veterans Affairs: Publications

PCR and other sequence-based microbial detection methods, once considered to be only research tools, are being used increasingly in the clinical microbiology laboratory. As this technology expands into the clinical arena, clinicians will need to learn its advantages and limitations so that sound judgments can be made. Astute clinicians know that results of blood culture reports, whether positive or negative, must be interpreted using an understanding of the test employed and an assessment of the clinical scenario. Similarly, infectious diseases practitioner will need to expand their understanding of PCR-based diagnostics so that these powerful tests are used appropriately.

It is …

Absence Of Kaposi's Sarcoma-Associated Herpesvirus Dna In Bacillary Angiomatosis-Peliosis Lesions, David A. Relman, David N. Fredricks, Kristine E. Yoder, Ginat Mirowski, Timothy Berger, Jane E. Koehler

United States Department of Veterans Affairs: Publications

Bartonella henselae and B. quintana induce an unusual vascular proliferative tissue response known as bacillary angiomatosis (BA) and bacillary peliosis (BP) in some human hosts. The mechanisms of Bartonella-associated vascular proliferation remain unclear. Although host factors probably play a role, microbial coinfection has not been ruled out. Because of the vascular proliferative characteristics noted in both Kaposi's sarcoma (KS) and BA and occasional colocalization of KS and BA, the possibility was explored that KS-associated herpes virus (KSHV) might be associated with BA lesions. Tissues with BA and positive and negative control tissues were tested for the presence of KSHV …

Annual Review Of The World Pheasant Association 1998/1999, World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

President's message, Keith C. R. Howman

Chairman's report, Richard P. Howard

Annual report of Council 1998/99

Treasurer's annual report and accounts, Ian F.. Hoggarth

Conservation Breeding Advisory Committee report, Han Assink

Chapters and Affiliate reports

Pheasant Specialist Group report, Peter J. Garson

Partridge, Quail and Francolin Specialist Group report, John P. Carroll

Grouse Specialist Group report, Ilse Storch

Megapode Specialist Group report, René W. R. J. Dekker

Cracid Specialist Group report, Daniel M. Brooks and Stuart D. Strahl

WPA-South Asia Regional Office, Rahul Kaul

Pheasant surveys in Pakistan, Rab Nawaz

A preliminary study of the effects of habitat isolation and …

February 9, 1999, Council On Teacher Education

Minutes

No abstract provided.

Book Review: Swallow Summer, Peter E. Lowther

Journal of the Iowa Academy of Science: JIAS

Swallow Summer. Charles R. Brown. 1998. The University of Nebraska Press, Lincoln, NE. 371 pages. ISBN 0-8032-6145-4.

This book, Swallow Summer, is a popular account of the Browns fifteenth year at Cedar Point Biological Station in Keith County, Nebraska. Brown presents a daily log of the activities that he undertakes for the 1995 field season, describing the work supporting his research program. In the preface, Brown hopes Swallow Summer can explain his fascination with Cliff Swallows and why he enjoys his research. His intent is to describe "the challenges, thrills, and frustrations that come with studying wild animals in the …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Morphology, Ultrastructure, And Function Of Extrafloral Nectaries In Three Species Of Caesalpiniaceae, Lenore T. Durkee, Matthew H. Haber, Lisa Dorn, Ann Remington

Journal of the Iowa Academy of Science: JIAS

Light and electron microscopy reveal that the morphologically well-differentiated petiolar nectaries of Chamaecrista fasciculata, Senna hepecarpa, and S. marilandica have an unusually simple anatomy consisting of an epidermis immediately subtended by a mass of small, loosely-packed parenchyma cells. Vascular strands from the petiolar bundles enter the nectary and terminate as phloem within or near this parenchyma. In mature, secreting nectaries, the cuticle of the epidermis extends between the epidermal cells and into the nectary parenchyma, where it occupies, but does not occlude, much of the free space of this tissue. The cutin is not found below the level …

Awards And Recognition, Iowa Academy Of Science, 1999

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

The Potential And The Pitfalls Of Habitat Conservation Planning Under The Endangered Species Act, Shi-Ling Hsu

Scholarly Publications

Editors' Summary: The ESA is simultaneously the most popular and most hated of environmental statutes. Conservationists fervently support the ESA's mission of preventing the extinction of our country's fish, wildlife, and plants, but private landowners subject to ESA restrictions claim that the Act unfairly and illogically restricts the use of their valuable property. As the agency with primary responsibility for the ESA's administration, the U.S. Fish and Wildlife Service (FWS) is caught between both sides. This Article examines how the FWS uses habitat conservation plans (HCPs) to balance the demands of conservationists and property owners. The Article begins by discussing …

The Kyoto Protocol: The Battle Over Global Warming Heats Up, Jeffrey A. Ferguson

Florida State University Journal of Transnational Law & Policy

No abstract provided.

Transforming Experiences: The Benefits Of Intellectual Risk, John Strassburger

Publications

This is the fourth in a series of occasional papers about the challenges confronting students and what Ursinus is doing to help them enter adult life.

Role Of Reactive Oxygen Species And P53 In Chromium(Vi)-Induced Apoptosis, Jianping Ye, Suwei Wang, Stephen S. Leonard, Yongyut Rojanasakul

Faculty & Staff Scholarship

No abstract provided.

The Illinois Adoption Act: Should A Child's Length Of Time In Foster Care Measure Parental Unfitness?, Cheryl A. Demichele

Loyola University Chicago Law Journal

No abstract provided.

Return The Tides Resource Book, Erno Bonebakker, Peter Shelley, Kim Spectre

Publications

No abstract provided.

Estuarine Artificial Reefs To Enhance Seagrass Planting And Provide Fish Habitat, Ryan J. Heise, Stephen A. Bortone

Gulf of Mexico Science

Small 25-m² artificial reef sets were deployed 1 m deep in Choctawhatchee Bay, FL, to determine the ability of reefs to aid in the establishment of newly planted Ruppia maritima (widgeon grass) while providing habitat for estuarine fishes. Seagrass survival and coverage were examined for reef configurations and compared with control plots. Visual surveys conducted from June 1996 to May 1997 indicated that the artificial reefs had no effect on the survivorship or growth of the planted R. maritima. The artificial reefs attracted juvenile and young adult fishes and had significantly more species, higher diversity, more individuals, and …

The Development Of Pearl Aquaculture In The Americas: Results Of A Sea Grant Gulf Of Mexico Regional Workshop: Foreword, Barry A. Costa-Pierce

Gulf of Mexico Science

No abstract provided.

College Catalog, 1999-2001, Buffalo State College

Academic Catalogs, 1871-2018

No abstract provided.

Faculty Senate Minutes 1998 - 1999, Missouri University Of Science And Technology Faculty Senate

Minutes & Agendas

No abstract provided.

Conference Digest And Conference Abstracts

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.