• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 44
  • 26
  • 9
  • 6
  • 2
  • 2
  • 2
  • 1
  • 1
  • Tagged with
  • 103
  • 17
  • 16
  • 15
  • 15
  • 12
  • 11
  • 11
  • 11
  • 9
  • 9
  • 9
  • 9
  • 8
  • 8
  • 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.
11

Implementation of marker-assisted selection for lodging resistance in pea breeding

Zhang, Chunzhen 30 August 2004 (has links)
Pea populations derived from ten crosses were scored by coupling phase linked sequence characterized amplified region (SCAR) markers A001 and A002, and repulsion phase linked SCAR marker A004 for lodging resistance during the F2 generation. The objective of this project was to test the efficiency of implementation of these three SCAR markers in marker-assisted selection (MAS) for lodging resistance in pea breeding. Chi-square tests showed that A001 and A004 followed a two independent gene segregation model in all of the eight populations that segregated for these two markers. In the F3 field trial, the differences between mean lodging score of A001 (DNA band present) and a001 (DNA band absent) classes varied from -0.5 to -0.9 with an average of -0.6, based on a 1 to 9 lodging scale, across the eight populations surveyed. The differences between mean lodging score of a004 (DNA band absent) and A004 (DNA band present) classes varied from -0.4 to -1.1 with an average of -0.7, across the eight populations surveyed. In comparison, when the combination of two markers (A001; a004 vs. a001; A004) was used, lodging score differences varied from -0.7 to -1.5, with an average of -1.0 across the eight populations. T-test results showed that significant differences (P<0.05) in lodging score were observed between A001 and a001 classes in seven out of eight populations, and between A004 and a004 classes in six out of eight populations. Further T-tests showed that significant lodging differences were observed among the four classes of the A001 and A004 marker combination in seven out of eight populations assessed, including differences at P<0.01 level in six populations. The greater differences among marker combination classes than between individual marker classes showed that combining two markers was more effective than use of each marker alone in MAS. The marker combination explained (R2) 19-57% of lodging and 4-43% of plant height variation in the eight populations surveyed. The high temperature and potential nitrogen leaching in the summer of 2003, reduced plant growth and lodging. Under optimal growth conditions, differences in lodging between resistant and susceptible cultivars could have been greater. Five new markers generated by simple sequence repeat (SSR) primers SAD134, SAB81 and SAD141 were identified in the recombinant inbred line (RIL) population derived from MP1401 × Carneval. The markers generated from primers SAD134 and SAB81 explained 12% and 13% of lodging variation in the RILs, respectively. Primer SAD141 produced three markers which explained 19%, 11% and 25% of lodging variation in the RILs, respectively. Linkage analysis showed that none of the three markers derived from primer SAD141 were allelic. The combination of the three markers from primer SAD141 explained 28% of lodging variation. However, utilization of any of these new markers with A001 and A004 did not substantially increase the proportion of lodging variation being explained. Thus, the new markers have limited potential to improve the efficiency of MAS for lodging resistance in pea breeding.
12

Physiological and biochemical responses to elevated temperatures influencing grain weight in wheat /

Bhullar, Sukhdev Singh. January 1984 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Plant Physiology, 1985. / Includes bibliographical references (leaves 216-237).
13

The Competitive Market Structure of the U.S. Lodging Industry and its Impact on the Financial Performance of Hotel Brands

Matovic, Dragan 06 May 2002 (has links)
The primary objective of this study was to explore the relationship among various market structure constructs (consisting of barriers to entry, competition, growth, and market share) and their potential impact on financial performance. By applying theoretical underpinnings from the disciplines of marketing, strategy and industrial organization economics, and adapting them to the unique characteristics of the U.S. lodging industry, the above constructs were linked to produce the Lodging Market Structure (LMS) Model. The study consisted of a cross-sectional analysis using a sample of 67 well-recognized hotel brands operating in the U.S. (representing 63 percent of the national guestroom inventory), covering a four-year period between 1996 and 1999. Correlation and multiple regression analysis were used to examine the hypothesized relationships within the LMS model. This study represented the first comprehensive investigation of the competitive market structure of the U.S. lodging industry. The key findings of the study indicate that the financial performance of hotel brands in the United States is strongly impacted by competitive market structure. Among the various market structure constructs studied, barriers to entry played the most dominant role in determining the level of financial performance of hotel brands. Based on a strong negative relationship, barriers to entry are very effective in reducing competition in the U.S. lodging industry. Also, of the constructs studied, barriers to entry had the greatest influence on enhancing the market share of incumbent hotel brands. The growth rate of those incumbent brands has a positive relationship with barriers to entry. As competition intensifies, the growth rate of hotel brands slows down. Increases in competition are negatively correlated with a brand's market share. Competition has a strong negative relationship with the financial performance of hotel brands. Market share improves as the growth rate of hotel brands increases. As the growth rate of brands increases, profitability also improves. Likewise, improvements in a hotel brand's market share are positively related to increases in profitability. Lastly, the U.S. lodging market is becoming more competitive, and the industry has reached the mature stage of its lifecycle. / Ph. D.
14

The Development of the Lodging Home Ghetto in Hamilton, Ontario

Demopolis, Chris David 04 1900 (has links)
This paper suggests a ghettoization of Lodging Homes has developed in Hamiton, Ontario. Through an examination of Residential Care Facilities (R.C.F.s), much can be learned about this phenomenon. Specifically, the processes which cause the ghetto to develop, and its impact on the environment. A model representing the processes which lead to the development of the ghetto clarifies this picture. As a result of deinstitutionalization, there are new client demands which are met by the public and private sectors. Any R.C.F. operator is limited by the physical and social infrastructures. The model suggests these factors combine to create the ghetto. The examination of the pre and post By-law periods in Hamilton provides a two stage test of the model. The findings of this study indicate the Lodging Home Ghetto is seen as a social problem by both government and local citizen groups. This opposition initiated the creation of Lodging Home legislation in Hamilton. However, the ghetto is still present. The client has a minor role in this process, while the social service and land use professionals impact is also not as significant as expected. Hence, problems associated with the use of social programs within a free market structure are apparent. / Thesis / Candidate in Philosophy
15

The Good, The Bad, and the Indifferent: Lodging Homes in Hamilton, Ontario

Noble, Amanda 11 1900 (has links)
This research aims to explore the ways in which community-based mental health social workers assess the qualities of residential care facilities in order to make recommendations to their service users. The daily challenges of serving a marginalized population within the context of structural inequalities and neoliberalist service provision describe some of the contradictions that shape the work experiences of social workers. This research seeks to contribute to and further our understanding of critical social work practice, social justice, and structural oppression. In addressing the phenomenon of structural inequalities and neoliberalist service provision from the perspective of those affected, it will assist in a broader understanding of how social workers support service users to find supportive housing. Semi-structured interviews with community-based mental health social workers employed in Hamilton, Ontario were conducted and complement the existing literature on residential care facilities, the deterioration of the social welfare system, managerialism, and client-centeredness. This is an exploratory study as few previous research has been conducted with social workers in the context of lodging homes. Previous literature existed from the perspective of residents of lodging homes in Hamilton, Ontario. This research suggests that social workers are influenced by a complex number of phenomena in their daily work in order to make recommendations for supportive housing. / Thesis / Master of Social Work (MSW)
16

The Americans with Disabilities Act and Accessibility Standards for the Disabled Population in the Lodging Industry

Sielschott, Krista M. 21 April 2004 (has links)
No description available.
17

Field and laboratory studies of lodging and drouth resistance in corn

Hunter, James William. January 1935 (has links)
Call number: LD2668 .T4 1935 H81
18

The Impact of Airbnb on the Coachella Valley Hotel Industry

Wang, Siyu 01 January 2017 (has links)
The emergence of the sharing economy has disrupted several industries. Controversies about multi-sided sharing platforms have arisen as incumbent firms assert that the platforms benefit from unfair competition by sidestepping regulations. This paper attempts to quantify the impact of Airbnb, one prominent example of a sharing platform, on the hotel industry in the Coachella Valley. I find that from 2011 to 2016, the increase in Airbnb supply in the Coachella Valley has a negative impact on city-level hotel revenue. For different hotel segments in the Coachella Valley, I do not observe significant differences in the magnitude of impact across the three categories.
19

Leadership Strategies for Employee Retention in Small Lodging Establishments

Raz, Adi 01 January 2017 (has links)
In 2015, turnover in the lodging accommodations and food services industry was 72.1%, accounting for 6.5 million incidents of voluntary quits. The purpose of this correlational study was to examine the relationship between antecedent independent variables and employee turnover in bed and breakfasts (B&Bs) and inns. The independent variables were ethical leadership, organizational support, coworker support, work-family conflict, employee empowerment, employee voice, and work schedule. Organizational support theory provided the theoretical framework for the study. Survey data were collected from 105 B&B and inn managers in California, Arizona, Oregon, and Washington. Data analysis included descriptive statistics, a correlation matrix, chi-square tests, and logistic regression. Correlational analysis and chi-square tests indicated significant positive relationships between organizational support and retention, between coworker support and retention, between reduced work-family conflict and retention, between empowerment and retention, and between work hours and retention. The logistic regression was statistically significant, Ï?2(7, N = 583) = 32.507, p < .001, and the independent variables of organizational support, coworker support, work-family conflict, and work schedule significantly predicted employee turnover. The study has implications for social change: when turnover will drop, B&B managers and employees achieve an improved standard of living gained through stability in the workplace, unemployment will drop, and the U.S. economy will see growth.
20

Genetic analysis of stalk strength in maize /

Flint-Garcia, Sherry A. January 2001 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 143-149). Also available on the Internet.

Page generated in 0.0347 seconds