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Pages
- Title
- The design & construction of a power plant for the Marquette cement manufacturing company, La Salle, Illinois
- Creator
- Williams, George Whitney
- Date
- 1909
- Collection
- Electronic Theses & Dissertations
- Title
- The leaf mold of tomatoes, caused by Cladosporium fulvum Cke
- Creator
- Makemson, Walter K.
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- An economic study of the San Jose scale : its allies, history & methods for its extermination
- Creator
- Woodbury, Charles Goodrich
- Date
- 1906
- Collection
- Electronic Theses & Dissertations
- Title
- The farmer's use of credit
- Creator
- Wright, Ivan, 1893-1976
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- Studies on the method of quantitative determination of the soil colloids
- Creator
- Wolkoff, Michael Ivanovitch
- Date
- 1916
- Collection
- Electronic Theses & Dissertations
- Title
- Reproduction in a dipterocarp forest of the Philippine Islands
- Creator
- Wood, Devillo Demic
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- On duty or diaper duty? impacts of job satisfaction, perceptions of organizational support, stigma, and leader-member exchange on paternity leave-taking intentions
- Creator
- Kinney, Emma Elizabeth
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
-
Given the mounting social and governmental support for better paternity leave options in the United States, it is surprising that less than 50% of fathers who are offered paid paternity-specific leave choose to take it (Cruickshank, 2019). Social scientists have thoroughly examined family-supportive policy and culture, yet the social mechanisms and influences surrounding paternity leave (as distinguished from general parental leave) and the decision to take or not take it have yet to be...
Show moreGiven the mounting social and governmental support for better paternity leave options in the United States, it is surprising that less than 50% of fathers who are offered paid paternity-specific leave choose to take it (Cruickshank, 2019). Social scientists have thoroughly examined family-supportive policy and culture, yet the social mechanisms and influences surrounding paternity leave (as distinguished from general parental leave) and the decision to take or not take it have yet to be understood. Regulatory barriers that have risen due to the basic nature of the Family and Medical Leave Act and barriers rising from factors in the social environment (stigma, leader-member exchange (LMX), job satisfaction, perceptions of organizational support (POS), perceptions of organizational family support (POFS)) may help explain this statistic. We build hypotheses from the social exchange perspective, emphasizing the role of communication as the primary facilitator of relational development, and viewing relational development as facilitated by social-exchange, or, "a two-sided, mutually contingent, and mutually rewarding process involving 'transactions' or simply 'exchange,'" (Emerson, 1976, p. 336). Data gathered from 92 fathers employed at a large midwestern university indicated that there is a relationship between perceived paternity leave-related stigma and paternity leave intentions, and that fathers with high LMX perceived less stigma from their supervisors than those with low LMX. Implications and findings for future research are discussed.
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- Title
- The control of fertilization in clover
- Creator
- Svetlikoff, K.
- Date
- 1912
- Collection
- Electronic Theses & Dissertations
- Title
- Breeding disease resistant strains of Phaseolus vulgaris
- Creator
- Putnam, Grosvenor W.
- Date
- 1922
- Collection
- Electronic Theses & Dissertations
- Title
- Timber residue supply for bioenergy in the northern tier of the Great Lakes : determinants and availability
- Creator
- Dulys-Nusbaum, Elena
- Date
- 2017
- Collection
- Electronic Theses & Dissertations
- Description
-
"Timber residues, a timber byproduct, are a low-cost source of biomass that avoids the environmental and food market consequences of other energy feedstocks. We studied the effect that price, forest species mix, bio-energy attitudes, environmental amenities, and environmental disamenities have on the decision to harvest for non-industrial private forest owners (NIPFs) in northern Michigan and Wisconsin."--from abstract.
- Title
- The Botrytis neck rot disease of onions
- Creator
- Munn, Mancel T.
- Date
- 1917
- Collection
- Electronic Theses & Dissertations
- Title
- The secondary effects of pollination
- Creator
- Munson, Welton Marks, 1866-1910
- Date
- 1892
- Collection
- Electronic Theses & Dissertations
- Title
- The effect of quality signaling on willingness to pay for potato planting material : a research study in Kenya
- Creator
- Bartle, Brian William
- Date
- 2019
- Collection
- Electronic Theses & Dissertations
- Description
-
Kenyan farmers can potentially access potato seeds from three distinct seed systems that provide different levels of quality assurance-the formal system (i.e., certified seed), the semi-formal system (i.e., clean seed) and the informal system (i.e., ware potato, own or neighbor's saved seed). However, similar to other vegetatively propagated crops, adoption of quality seeds (i.e., certified or clean seed) is strikingly low in the Kenyan potato sector. This inhibits the development of a robust...
Show moreKenyan farmers can potentially access potato seeds from three distinct seed systems that provide different levels of quality assurance-the formal system (i.e., certified seed), the semi-formal system (i.e., clean seed) and the informal system (i.e., ware potato, own or neighbor's saved seed). However, similar to other vegetatively propagated crops, adoption of quality seeds (i.e., certified or clean seed) is strikingly low in the Kenyan potato sector. This inhibits the development of a robust and commercially viable potato sector and severely limits Kenya's potential to increase potato production while combating the spread of pathogens. This study uses auction experiments to measure farmers' willingness to pay for seed products representing the three seed systems and evaluates the effectiveness of each seed system in communicating the assurance of quality and the effect of trust of the seed source on farmer's valuation of seed products. The study contributes to the literature by exploring the role of information, branding, and reputation as quality signals to curtail the effects of information asymmetry in credence and experience attributes of quality seed. Results show that potato farmers in Kenya value the formal seed system the highest, followed by the semiformal and the informal systems. However, the formal seed system has not been effective in signaling quality through certification. In terms of the branding and reputation effect, the parastatal ADC Molo and some clean seed producers in selected counties showed strong signs of quality signaling through branding. What this means for the potato seed system in Kenya and beyond is that farmers do trust institutions (i.e., KEPHIS certification) as well as branding and reputation, but still remain hesitant to engage in the formal and semiformal seed systems due to other exogenous and endogenous factors.
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- Title
- A study of the decomposition of Diazo-compounds
- Creator
- Naito, Hiroshi
- Date
- 1919
- Collection
- Electronic Theses & Dissertations
- Title
- Design for an apparatus to determine moment of inertia of irregular solids by immersion
- Creator
- Reynolds, R. L.
- Date
- 1895
- Collection
- Electronic Theses & Dissertations
- Title
- Engineering and cost data relative to the installation of steam distributing systems in a large city
- Creator
- Valentine, F. H. (Floyd Hilbert)
- Date
- 1916
- Collection
- Electronic Theses & Dissertations
- Title
- Exploring the Benefits of Cover Crops to Agroforestry Tree Plantations : an Analysis of Direct and Indirect Nitrogen Transfer in Alley Cropping Systems
- Creator
- Shults, Patrick
- Date
- 2017
- Collection
- Electronic Theses & Dissertations
- Description
-
Incorporating species capable of biological nitrogen fixation into agroforestry systems can improve nutrient cycling and soil health while reducing the need for synthetic nitrogenous fertilizers. Research has confirmed multiple pathways through which biologically fixed nitrogen is transferred to non-nitrogen fixing plants, including indirect transfer through decaying biomass and direct transfer through belowground root exudates and shared fungal networks. I analyzed the benefits of cover...
Show moreIncorporating species capable of biological nitrogen fixation into agroforestry systems can improve nutrient cycling and soil health while reducing the need for synthetic nitrogenous fertilizers. Research has confirmed multiple pathways through which biologically fixed nitrogen is transferred to non-nitrogen fixing plants, including indirect transfer through decaying biomass and direct transfer through belowground root exudates and shared fungal networks. I analyzed the benefits of cover crops to the growth and nutrition of important agroforestry tree species through experiments in the field and greenhouse. In the field study, I examined the contributions of Trifolium pratense to the health and growth of hybrid poplar (Populus nigra L.×P. maximowiczii A. Henry 'NM6') in an alley cropping system at varying seed rates and tree row spacing. Soil and poplar leaf nutrient analysis revealed higher nitrogen levels in treatments with T. pratense at regardless of seed rate at the wider spacing, while narrow spacing treatments showed signs of competition. In the greenhouse study, the transfer of N through root exudates from white clover (Trifolium repens) to a hybrid poplar (Populus nigra L.×P. maximowiczii A. Henry 'NM6') and a hybrid chestnut (Castanea sativa x C. crenata 'Colossal') was quantified via 15N isotope tracing methods. Results revealed that over the course of 9 weeks, white clover supplied 33.3% (±7.4) of chestnut N and 12.1% (±1.1) of poplar N through root eudates. White clover (T. repens) was found to exude 0.048 g N m-2 day-1 and roughly 3.4% of its' total N over the course of the 63 day experiment. Together these studies reinforce the potential of nitrogen-fixing species to benefit mixed systems through both direct and indirect means.
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- Title
- Exploring the relationship of criminogenic need, risk of recidivism, official recidivism, and gang status in youth offenders
- Creator
- Mandalari, Amber Angelina
- Date
- 2017
- Collection
- Electronic Theses & Dissertations
- Description
-
"Research indicates that gang-involved youth are at risk for numerous negative outcomes, including elevated risk of involvement with the juvenile justice system. While many studies have examined the differences between gang-involved youth and their non-gang, non-delinquent peers, differences among non-gang and gang-involved juvenile delinquents have been less explored. This study explored the relationship of areas of criminogenic need, risk of recidivism, and official recidivism between gang...
Show more"Research indicates that gang-involved youth are at risk for numerous negative outcomes, including elevated risk of involvement with the juvenile justice system. While many studies have examined the differences between gang-involved youth and their non-gang, non-delinquent peers, differences among non-gang and gang-involved juvenile delinquents have been less explored. This study explored the relationship of areas of criminogenic need, risk of recidivism, and official recidivism between gang and non-gang justice-involved youth using the Youth Level of Service/Case Management Inventory (YLS/CMI). Results from regression analyses suggest gang status is positively associated with scores of criminogenic needs, risk of recidivism, and official recidivism. However, gang status was not found to moderate the predictive validity of the YLS/CMI for official recidivism. These results indicated it is important for justice system practitioners to consider gang status when making programming and intervention decisions. Limitations and future directions are also discussed."--Page ii.
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- Title
- Baptismal records in the study of the illegal Havana slave trade, 1821-1843
- Creator
- Barsom, Andrew George
- Date
- 2017
- Collection
- Electronic Theses & Dissertations
- Description
-
This thesis describes a dataset drawn from the baptismal registers of four Havana-area churches. Baptism entries date from between 1821 and 1843 and include the baptisms of 7,181 Africans. The goal of creating this thesis is to understand more precisely the demographics of the illegal slave trade, which carried hundreds of thousands of Africans to Cuba over the course of the nineteenth century. It includes data on the age, sex, ethnicity, origin, and legal status of these Africans. Results...
Show moreThis thesis describes a dataset drawn from the baptismal registers of four Havana-area churches. Baptism entries date from between 1821 and 1843 and include the baptisms of 7,181 Africans. The goal of creating this thesis is to understand more precisely the demographics of the illegal slave trade, which carried hundreds of thousands of Africans to Cuba over the course of the nineteenth century. It includes data on the age, sex, ethnicity, origin, and legal status of these Africans. Results are then compared to other sources of data on Africans trafficked to Havana during this period and the implications are discussed. -- Abstract.
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- Title
- The impact of expiratory muscle strength training on vocal fatigue
- Creator
- Burtka, Rachel
- Date
- 2018
- Collection
- Electronic Theses & Dissertations
- Description
-
"Vocal fatigue is a recurring problem, particularly prevalent within females when speaking for long periods of time for their professions. This increased risk of vocal fatigue in females seems to have connection to speech breathing and breath support, possibly because of the smaller lung capacity that females typically have when compared to males along with other physiological differences. Due to this possible connection, the following research question was presented: Will strengthening the...
Show more"Vocal fatigue is a recurring problem, particularly prevalent within females when speaking for long periods of time for their professions. This increased risk of vocal fatigue in females seems to have connection to speech breathing and breath support, possibly because of the smaller lung capacity that females typically have when compared to males along with other physiological differences. Due to this possible connection, the following research question was presented: Will strengthening the pulmonary system show a decrease in the occurrence of vocal fatigue? It was hypothesized that after expiratory training exercises, vocal fatigue rate will be reduced within female participants. In addition, it was hypothesized that the breathing training could serve as a preventative measure in vocal fatigue with continued use. To test this hypothesis, data was collected from ten women of a shorter than average body height and weight range to enhance the possible smaller lung effect. The participants completed a preliminary data collection, a month-long breathing intervention with an expiratory muscle strength training device, and a post intervention data collection. Results indicated that both participant self-perceived vocal fatigue rating decreased and standard deviation of fundamental frequency increased after intervention. These results can indicate a trend of decreased vocal fatigue symptoms within participants after use with an expiratory muscle strength trainer."--Page ii.
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