Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 446 for “"Substitutes"”.
-
Market substitutes for housework: Variations in use
The purpose of this study was to examine the effect of mother's marital and employment status on expenditures for time-saving durables and services. The theoretical framework of this study was derived from the household production model. Data were taken from the 1988-89 Consumer Expenditure Survey. …
-
In vitro osteoclast resorption of calcium phosphate bone substitutes
The broad aim of this work was to investigate the in vitro osteoclast (OC) resorption of calcium phosphate (CaP) biomaterials. Resorption of CaP biomaterials is traditionally assessed using an OC resorption assay where resorption pits formed on the CaP surface are analysed by microscopy techniques …
-
Substitutes for whole milk as a ration for dairy calves
no abstract provided by author
-
Development and assessment of calcium phosphate bone substitutes for orthopaedic applications
… in bone substitution. The development of bone substitutes with architectural and biological properties comparable to healthy bone is a challenge. Porous scaffolds based on calcium phosphate (CaP) ceramics such as hydroxyapatite (HA) and (3-tricalcium phosphate (P-TCP) have potential in the …
-
The botany and macroscopy of chinese materia medica: sources, substitutes and sustainability
… (Chinese medicinal plants, herbal drugs and substitutes: an identification guide, Leon & Lin, Kew Publishing, 2017), which forms the core of this dissertation by publication, presents a fresh approach to the identification of 226 internationally traded CMM (officially recognised in the …
-
Savings Groups and Banks: Complements or Substitutes? Financial Inclusion in Rural Tanzania
<p>Abstract: The substantial increase in the number savings and credit groups as well as microfinance institutions over the past years suggests that individuals in the developing world have progressively become aware of the importance of access to financial services. This study adds to the existing …
-
Teleworkers and the Moderating Effect of Sense of Community on Leadership Substitutes
… sense of community affected leadership substitutes. The purpose was to explore teleworker perceptions of the level of sense of community and whether that level affects the preference for leadership substitutes to a teleworker’s self-defined sense of productivity. It also explored …
-
Engineering arterial substitutes that recapitulate vessel microstructure and mimic native physiological responses
… Our central hypothesis was that living arterial substitutes that display normal physiological responses after in vivo implantation can be engineered through the controlled assembly of vascular cells and free-standing collagen sheets of controlled fibril orientation in a manner that recapitulates …
-
Evaluation of Topsoil Substitutes for Restoration of Appalachian Hardwoods on Strip Mined Land
Current surface mine reclamation in Appalachia involves returning the land to approximate original contour by grading the surface and planting grasses and early-successional trees. This results in a greatly altered ecosystem compared to the native forest that was there prior to mining. The …
-
Tissue engineering of co-cultured skin substitutes using biocomposite membranes based on collagen and polycaprolactone
… for manufacture of tissue engineered skin substitutes are reported. Films of collagen: PLC, gelatin: PCL (1:4, 1:8 and 1:20 w/w) and gelatin/collagen:PCL (1:8 and 1:20 w/w) biocomposites were prepared by impregnation of lyophilised collagen and/or gelatin mats by PCL solutions followed by …
-
A Study of the Effectiveness of Nitrogen, Manganese, and Copper as Substitutes for Nickel in Low-Chromium Stainless Steels.
During the past 40 years, the United States has experienced several strategic material shortages prompted by crises such as World War II and the Korean War. Historically, the issue of a critical materials policy by the United States was not addressed until shortages of materials hindered the …
-
Peptides and Nitrogen-Free Analogs as Substitutes for Dietary Amino Acids: Significance in the Nutriture of Chicks and Rats
Chick and rat bioassays were conducted to establish quantitative efficacy values (slope-ratio procedure) for the D-isomer, the (alpha)-keto analog and the D- and L-(alpha)-hydroxy analogs of phenylalanine (Phe), leucine (Leu), isoleucine (Ile) and valine (Val). D-Phe was well utilized by both …
-
A comparison of two saliva substitutes in the management of xerostomia during radiotherapy for cancer of the head and neck
… to compare the palliative efficacy of two saliva substitutes (Sinspeek and Xerostom) in patients during radiotherapy for cancer of the head and neck. This crossover randomised controlled clinical trial was carried out on twenty-five patients with malignant tumours of the head and neck, following …
-
Factors associated with non-compliance with the code of marketing breast milk substitutes and/or statutory instrument number 48 of 2006 of the laws of Zambia in Kalinjalinga and Chelstone
… the International Code of Marketing Breast Milk Substitutes (ICMBMS) and/or Statutory Instrument (SI) number 48 of 2006 of the Laws of Zambia by manufacturers and distributors is prevalent posing a challenge to successful breast feeding. The World Health Organization (WHO)'s Code of marketing of …
-
Essays on the theory of lattice games with applications
… strategic complements and players with strategic substitutes (unlike games with strategic complements, or games with strategic substitutes). Chapter 3 is an application which makes use of oligopoly techniques to introduce the notion of smuggling into the setting of an international trade model. …
-
Engineering Musculoskeletal Tissue: In vitro and in vivo evaluation of novel scaffolds and growth factors for bone regeneration
… to be used as clinically applicable bone graft substitutes. Methods: A systematic method was adopted in the evaluation of bone graft substitutes. Novel materials were first tested using in vitro methods to assess cytocompatibility, proliferative effects and osteoinductive potential on …
-
Development of a Handbook for Substitute Teachers in the East Irondequoit School District
… keep the handbook as a ready personal reference. Substitutes suggested a number of topics for inclusion, including District Philosophy, salary schedules, drill and attendance policies, information about the student body, lists of administrative personnel, use of AV equipment, and a map of the …
-
Speculation, Capital Mobility, Price Flexibility, Forward Market Intervention and Exchange Rate Variability: A Simulation Approach
… into the model: (1) foreign goods are imperfect substitutes for domestic goods; (2) foreign assets are imperfect substitutes for domestic assets on a covered basis; and (3) the current forward rate differs from the future spot by a market-determined risk premium. Although domestic goods price is …
Page 1 of 23