Several industries use what is called rotating workforce scheduling. This often means that employees are needed around the clock seven days a week, and that they have a schedule which repeats itself after some weeks. This thesis gives an introduction to this kind of scheduling and presents a review of previous work done in the field. Two different optimization models for rotating workforce scheduling are formulated and compared, and some examples are created to demonstrate how the addition of soft constraints to the models affects the scheduling outcome. Two large realistic cases, with constraints commonly used in many industries, are then presented. The schedules are in these cases analyzed in depth and evaluated. One of the models excelled as it provides good results within a short time limit and it appears to be a worthy candidate for rotating workforce scheduling.

The goal of my work is to analyze the so-called cyclical companies. In my work I'm going to describe the fuctioning of sectors, which are historically branded as cyclical. In the main part of this work I'm going to evaluate selected companies from the automobile, the air transportation and the electronics sectors.

When the special moments of life and death are imminent, where do you want to be? My thesis seeks to create an eco-sensitive, sustainable building that celebrates the time and place of two of life s most amazing events: birth and death. Rather than a conventional singular center, my thesis proposes a combined program for a new architectural project type: a Birthing and Hospice Center. Although the concept may be surprising, once people fully understand that we live in a closed system and embrace the cyclical nature of life, it is an appropriate program that represents another aspect of sustainability. The project site is located in an urban area of Old Town Alexandria, Virginia along the Potomac River. The Birthing and Hospice Center integrates both the human life cycle and the material life cycle of the building s materials, water, and site for a holistic experience and celebration. It explores how to heighten our environmental experience of place, light, air, water, and time. My thesis seeks to create a beautiful place where people can celebrate their own special event, while at the same time, understand and celebrate the larger realm of the natural life cycle. / Master of Architecture

Doctor of Philosophy / Family Studies and Human Services / Jared R. Anderson / Cyclical romantic relationships—those characterized by breaking up and getting back together or having on/off periods—are a frequent phenomenon in the emerging adult population. These dating relationships maintain some distinctions from other more stable relationships, including the ways that partners strive to sustain relationship health. The purpose of this phenomenological qualitative inquiry was to increase in-depth understanding of how emerging adult dating partners’ relationship effort affects relationship transitions within cyclical dating relationships. Ten heterosexual emerging adult couples (10 men, 10 women) currently in cyclical dating relationships were interviewed about their experiences with relationship effort and maintenance. Participant interviews were analyzed according to the Interpretative Phenomenological Analysis (IPA) method. Specific themes emerged from the data, focusing on how perceived individual effort in the relationship, perceived partner effort in the relationship, and specific maintenance behaviors couples used to sustain relational health affected couple decisions about relationship transitioning. Implications regarding relationship education and clinical intervention among cyclical emerging adult couples are discussed. Future research could focus on continued expansion of understanding when in relationship history cyclical patterns begin, and how partners navigate transitions when both perceive reduced relationship effort.

Sex and meiosis are ubiquitous in eukaryotes as the primary mode of reproduction. This suggests that despite the theoretical energetic advantages of asexual reproduction, organisms capable of sexual reproduction are at a much greater long-term evolutionary advantage. Rotifers, a group of microinvertebrates, offer unique opportunities to examine the evolution of sex due to their extensive proliferation, successful adaptation to a wide variety of ecological niches, and the diversity of reproductive modes represented in the group. The cyclically parthenogenetic monogonont rotifers have overcome constraints on the loss of sexual reproduction in order to frequently transition between sexual and asexual generations, making them a powerful system with which to address the maintenance of sex in animals. Obligately asexual bdelloid rotifers appear to have thrived without sex for tens of millions of years, a period of time much longer than expected given the hypothesized advantages of sexual reproduction. However, the molecular nature of sex and parthenogenesis is poorly understood in any rotifer species. To expand our knowledge of the molecular mechanisms of monogonont reproduction, we sequenced genomes of two distantly related species, Brachionus calyciflorus and Brachionus manjavacas and identified over 80 homologs for genes involved in meiotic processes. Several of these genes have undergone duplication events specific to the monogonont lineage, including genes with known roles in regulation of cell cycle transitions during meiosis. In addition, global gene expression patterns were determined using obligate parthenogenetic (OP) and cyclical parthenogenetic (CP) strains of B. calyciflorus. Quantitative comparison of expression between these strains revealed differentially expressed genes specific to sexual and asexual reproduction in this species, including genes related to dormancy/resting egg formation, meiosis, and hormone signaling pathways that are thought to be involved in the induction of sexual reproduction in monogononts. Finally, we analyzed gene expression in bdelloid rotifers for evidence of sexual reproduction or the utilization of meiotic genes under conditions inducing high levels of recombination. Through this work, we have established molecular markers for sexuality and asexuality in monogonont rotifers, and used these markers to evaluate reproduction in bdelloids. The data generated specifically allows for more informed analyses of the evolution of cyclical parthenogenesis and rotifer reproduction. Furthermore, this work extends the use of monogononts as a model system for addressing broader questions regarding the evolution of sexual reproduction.

Comments and Discussion : Toshiki Tamai

Little research has been conducted on the effects of housing price cycles on preferences for environmental landscape attributes over time (Cho, Kim, & Roberts, 2011). If the economic value of scarce resources like water resource amenities depends on consumer preferences, then it is useful to address possible effects of cyclical variation in the housing market on these values. This issue is addressed in the primary research question for this thesis: Did the 2007-2009 recession and consequent real estate bust affect marginal willingness to pay for water resource amenities for properties in proximity to the lower St. Johns River (SJR) in Duval County, FL? Prior published studies on the most recent real estate cycle were used to evaluate the timing of housing market impacts during the most recent recession. Also, sales price and sales volume distributions for Duval County were evaluated to compare trends. Based on prior research and results, three separate hypotheses were generated and tested using the hedonic pricing method for residential properties in Duval County. The first hypothesis was that the recent recession impacted the implicit prices of water resource amenities for residential properties in proximity to the SJR. Two separate regression models were developed to test different recession periods (2007-2012 and 2008-2012) based on sample data. Time fixed effect binary variables were used to construct recession interaction effects with water related amenities (proximity to the SJR as well as tributary and riverfront properties). Results showed that during the recession period, sales prices for houses further away from the river experienced a greater negative impact than those closer to the river. This result is similar to research by Cohen, Coughlin, and Lopez (2012) who suggest that, higher priced or high tier residential houses (in this case, those closer to river) tend to hold their value more than low tier residential houses. Also, consistent with research by Bin, Czajkowski, Jingyuan, and Villarini (2015), sales prices for tributary and riverfront homes were not impacted by the recession. A second hypothesis was developed to test whether sales prices for houses in Duval County recovered to pre-recession levels. A regression model was constructed with a separate recession interaction effect variable for 2013-2015 and results indicated that the housing market did not make a full recovery from the recession. A final hypothesis was developed on the significance of interaction variables water quality indicator Chlorophyll-A and a recession effects binary variable. All water quality interaction variables introduced within the model were not significant at the 1% or 5% levels. Future research might include testing interactions with parcel land area and recession time effects and also examining other water quality indicators including Secchi Disk, dissolved oxygen, or turbidity. It may also be useful in the future to use an alternative method of measuring implicit prices of environmental characteristics, such as the repeat sales method.

No description available.

This is the first study to identify and analyse postmodern romances as a new development of the romance and to relate this late twentieth-century subgenre to its tradition. Based on a selection of works published between 1969 and 1994, by A. S. Byatt, Lindsay Clarice, Michael Dorris and Louise Erdrich, John Fowles, Iris Murdoch, Susan Sontag and Jeanette Winterson, it seeks to demonstrate how this new orientation of the romance produces meaning in dialogue with generic conventions and traditional works and, in doing so, both criticises and rehabilitates the genre.A 'postmodern romance' is a double-natured or hybrid text influenced both by inherited romance strategies and experimental postmodern techniques, such as those specified in Linda Hutcheon's study of the "poetics* of postmodernism: ambiguity, parody, paradox, contradiction and self-reflexivity. Hutcheon's theories, as well as theories of the romance, of intertextuality, of feminism, of New Historicism and of popular culture provide the theoretical framework for my argument.Intertextuality is an important manifestation of literary postmodernism, and I isolate three kinds of intertextual relationships which 1 see as characteristic of postmodern romances. Taking as its starting point Julia Kristeva's view that intertextuality includes social, political and cultural, as well as literary, contexts, 1 argue that feminist ideologies appear as cultural intertexts in postmodern romances, thereby challenging the association between the romance genre and a patriarchal world-view. The connections between postmodern and chivalric, historical and women's popular romances are instances of generic intertextuality, where particularly postmodern literary strategies are fused with more conventional attributes of the romance. The links between the postmodern works and the various subgenres of romance affect both the former and the latter, making the postmodern texts accessible to a larger audience, but also revealing forgotten or overlooked complexities in earlier examples of the romance. The return to individual texts is an instance of specific intertextuality, where postmodern romances reinterpret and rewrite particular, earlier romances. Since the relationship between the texts involved is dialogic and, hence, unpredictable, the modern works are also reinterpreted by their intertexts.Postmodern romances transcend the boundaries between real and unreal, male and female, "high" and "low" literature, and in the process they show that this might be equally characteristic of traditional romances. As a result of the fusion of postmodern and romantic literary modes, the inherent duality of the romance genre as such is brought to the fore at the same time as the genre is revived. / <p>Swedish Science Press, Uppsala (distribution).</p> / digitalisering@umu

This paper provides a comprehensive empirical assessment of the relation between the cyclicality of fiscal expenditure policy, output volatility, and economic growth, using a large cross-section of 88 countries over the period 1960 to 2004. Identification of the effects of (endogenous) cyclical expenditure policy is achieved by exploiting the exogeneity of countries political and institutional characteristics, which we find to be relevant determinants of the cyclicality of expenditures. There are three main results: First, both pro- and countercyclical expenditure policy amplify output volatility, much in a way like pure fiscal shocks that are unrelated to the cycle. Second, output volatility, due to variations in cyclical and discretionary fiscal policy, is negatively associated with economic growth. Third, there is no direct effect of cyclicality on economic growth other than through output volatility. These findings advocate the introduction of fiscal rules that limit the use of (discretionary and) cyclical fiscal (expenditure) policy to improve growth performance by reducing volatility. (author's abstract)