• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 47
  • 30
  • 14
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 4
  • 2
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 124
  • 124
  • 35
  • 29
  • 29
  • 20
  • 20
  • 17
  • 14
  • 14
  • 12
  • 11
  • 9
  • 9
  • 9
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The synthesis and characterization of platinum complexes containing thiolate and catenated polysulfur ligands /

Lai, Rabin Diwan. January 1981 (has links)
No description available.
22

Electrophilic insertion reactions of sulfur dioxide and sulfur imides /

Severson, Roland G. January 1977 (has links)
No description available.
23

A salivary chromogenic assay for periodontitis

Seyedain, Merriam January 2011 (has links)
Periodontitis tends to be associated with sulfur-producing bacteria. This study uses a chromogenic sulfur detecting strip to compares whole saliva sulfur (SS) scores in subjects with and without periodontal diseases and examines the relationship between SS scores and clinical measures of periodontal status.Materials & Methods: Ninety-sex subjects were enrolled, mean age (SD) 36.5 (15.42), age range 22 to 82, percent males 52%, percent Caucasians 57%, percent cigarette smokers 33%. Periodontal evaluations including plaque index (PI), gingival index (GI), probing depth measurements (PD) and attachment levels (AL) were performed on 6 sites per tooth. Subjects were divided into 3 groups: periodontally healthy (no loss of attachment and no gingival bleeding, 17 subjects), gingivitis (no loss of attachment and presence of gingival bleeding, 54 subjects) and periodontitis (loss of attachment > 5 mm in 5 or more teeth, 25 subjects). A single chromogenic strip was used to collect a whole saliva sample from the mouth. Color reaction was scored based on a color chart. The scoring examiner was blinded to clinical status. Results: Good to moderate correlations were found between SS scores and PI (r=0.47, p=0.0001), GI (r=0.45, p=0.0001), PD (r=0.42, p=0.0001), and AL (r=0.30, p=0.002). Analysis of variance showed significant differences in SS scores among the three study groups (p = 0.0001); post-hoc analysis showed higher SS scores in periodontitis subjects than non-periodontitis subjects (p = 0.05). Nominal logistic regression adjusting for smoking showed the odds ratio of periodontitis increase by a factor of 12.76 for each increase of one unit of measure of SS. Conclusion: The results suggest that assessing whole saliva sulfur levels with a chromogenic strip has potential as a screening test for periodontal diseases. / Oral Biology
24

Determination of sulfur in organic compounds utilizing gas chromatography

Beuerman, Donald R. January 1961 (has links)
Call number: LD2668 .T4 1961 B48
25

Fuel component induced degradation of metal alloy surfaces

McManus, Kieran January 2014 (has links)
No description available.
26

THE CONTROL OF SULFUR EMISSIONS DURING THE ROASTING OF METAL SULFIDES (LIME, ZINC).

Morris, Robert Eugene. January 1985 (has links)
No description available.
27

Reactions of reduced sulfur compounds with ozone

Tuggle, Michael Larry, January 1971 (has links)
Thesis--University of Florida, 1971. / Description based on print version record. Manuscript copy. Vita. Bibliography: leaves 173-190.
28

Atomic substitution in the tetrahedrite-tennantite series

Braun, Gerald Eugene, 1945- January 1969 (has links)
No description available.
29

Effect of sulphur dioxide and fuel sulphur on nitrogen oxide emissions

Ekmann, James M. January 1975 (has links)
No description available.
30

The behaviour of thio bases in aqueous acid.

Derdall, Gary. January 1971 (has links)
No description available.

Page generated in 0.0576 seconds