De Rosis Nascentibus in English from the Renaissance to the Twentieth Century: a collection of translations

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Analysis and Optimization of Scientific Applications through Set and Relation Abstractions

Writing high performance code has steadily become more challenging since the design of computing systems has moved toward parallel processors in forms of multi and many-core architectures. This trend has resulted in exceedingly more heterogeneous architectures and programming models. Moreover, the prevalence of distributed systems, especially in fields relying on supercomputers, has caused the programming of such diverse environment more difficulties. To mitigate such challenges, an assortment of tools and programming models have been introduced in the past decade or so. Some efforts focused on the characteristics of the code, such as polyhedral compilers (e.g. Pluto, PPCG, etc.) while others took in consideration the aspects of the application domain and proposed domain specific languages (DSLs). DSLs are developed either in the form of a stand-alone language, like Halide for image processing, or as a part of a general purpose language (e.g., Firedrake- a DSL embedded in Python for solving PDEs using FEM.) called embedded. All these approaches attempt to provide the best input to the underlying common programming models like MPI and OpenMP for distributed and shared memory systems respectively. This dissertation introduces Kaashi, a high-level run-time system, embedded in C++ language, designed to manage memory and execution order of programs with large input data and complex dependencies. Kaashi provides a uniform front-end to multiple back-ends focusing on distributed systems. Kaashi abstractions allows the programmer to define the problem’s data domain as a collection of sets and relations between pairs of such sets. The aforesaid level of abstraction could enable series of optimizations which, otherwise, are very expensive to detect or not feasible at all. Furthermore, Kaashi’s API helps novice programmers to write their code more structurally without getting involved in details of data management and communication

オスカー・ワイルドの初・中期詩における音楽の表象

Oscar Wilde (1854-1900), an Anglo-Irish author of the nineteenth century, is known to have embraced music both as culture and as an idea. In examining his appreciation of music, musical representations in his earlier poetry should not be overlooked. As observed in this paper, Wilde’s appreciation of music as the supreme art form was almost synonymous with writing poetry. The paper explores how the idea and figure of music played a role throughout Wilde’s early career, and it unveils the process in which his references to Classical images were replaced by contemporary discourse over the course of time

Navigating the Blind Rainbow of Life: A compilation of proetic fragments

In this project, I have attempted to say the unsaid, to bring the genotext into the phenotext. As I have plodded through four years of college, I have paid daily tribute to the phenotext (to order, meaning, and logic). I have heard countless lectures and scribbled about a thousand pages of notes. I have taken close to a hundred tests and written dozens of papers. These have been the formal products of my education; thus, they chart my advancement as a scholar. The marginal fragments represent the genotext, and they trace my journey as an organic and creative being. These sparks of insight and understanding have been exiled to the margins for four long years; it is finally time for them to come home

History of oceanic front development in the New Zealand sector of the Southern Ocean during the Cenozoic--a synthesis

The New Zealand sector of the Southern Ocean (NZSSO) has opened about the Indian-Pacific spreading ridge throughout the Cenozoic. Today the NZSSO is characterised by broad zonal belts of antarctic (cold), subantarctic (cool), and subtropical (warm) surface-water masses separated by prominent oceanic fronts: the Subtropical Front (STF) c. 43deg.S, Subantarctic Front (SAF) c. 50deg.S, and Antarctic Polar Front (AAPF) c. 60deg.S. Despite a meagre database, the broad pattern of Cenozoic evolution of these fronts is reviewed from the results of Deep Sea Drilling Project-based studies of sediment facies, microfossil assemblages and diversity, and stable isotope records, as well as from evidence in onland New Zealand Cenozoic sequences. Results are depicted schematically on seven paleogeographic maps covering the NZSSO at 10 m.y. intervals through the Cenozoic. During the Paleocene and most of the Eocene (65-35 Ma), the entire NZSSO was under the influence of warm to cool subtropical waters, with no detectable oceanic fronts. In the latest Eocene (c. 35 Ma), a proto-STF is shown separating subantarctic and subtropical waters offshore from Antarctica, near 65deg.S paleolatitude. During the earliest Oligocene, this front was displaced northwards by development of an AAPF following major global cooling and biotic turnover associated with ice sheet expansion to sea level on East Antarctica. Early Oligocene full opening (c. 31 Ma) of the Tasmanian gateway initiated vigorous proto-circum-Antarctic flow of cold/cool waters, possibly through a West Antarctic seaway linking the southern Pacific and Atlantic Oceans, including detached northwards "jetting" onto the New Zealand plateau where condensation and unconformity development was widespread in cool-water carbonate facies. Since this time, a broad tripartite division of antarctic, subantarctic, and subtropical waters has existed in the NZSSO, including possible development of a proto-SAF within the subantarctic belt. In the Early-early Middle Miocene (25-15 Ma), warm subtropical waters expanded southwards into the northern NZSSO, possibly associated with reduced ice volume on East Antarctica but particularly with restriction of the Indonesian gateway and redirection of intensified warm surface flows southwards into the Tasman Sea, as well as complete opening of the Drake gateway by 23 Ma allowing more complete decoupling of cool circum-Antarctic flow from the subtropical waters. During the late Middle-Late Miocene (15-5 Ma), both the STF and SAF proper were established in their present relative positions across and about the Campbell Plateau, respectively, accompanying renewed ice buildup on East Antarctica and formation of a permanent ice sheet on West Antarctica, as well as generally more expansive and intensified circum-Antarctic flow. The ultimate control on the history of oceanic front development in the NZSSO has been plate tectonics through its influence on the paleogeographic changes of the Australian-New Zealand-Antarctic continents and their intervening oceanic basins, the timing of opening and closing of critical seaways, the potential for submarine ridges and plateaus to exert some bathymetric control on the location of fronts, and the evolving ice budget on the Antarctic continent. The broad trends of the Cenozoic climate curve for New Zealand deduced from fossil evidence in the uplifted marine sedimentary record correspond well to the principal paleoceanographic events controlling the evolution and migration of the oceanic fronts in the NZSSO

Impacts of temperature variation on performance, life-history and flight ability of the false codling moth, Thaumatotibia leucotreta (Lepidoptera: Tortricidae)

Thesis (MScConsEcol)--Stellenbosch University, 2018.ENGLISH ABSTRACT: The sterile insect technique (SIT), the process of mass-rearing, sterilizing and releasing sterile insects, can be used to can be used to combat economically important pests by supressing their population numbers as part of an integrated pest management programme. The success of SIT programmes depends upon the production of high-quality, competitive insects for field release. In SIT programmes, the influence of temperature variation during larval development and chilling during storage and their effects on the field performance of adult mass-reared insects are poorly understood but may be a significant avenue for increasing programme efficacy. The use of different temperatures to rear, handle and immobilise insects allows increased quantities of insects to be collected, handled, irradiated, transported and released. Unfortunately, the use of different temperature regimes in the rearing, storage, handling and shipping of insects have poorly understood impacts on the field performance of mass-reared insects. I mainly studied the impact of different developmental temperatures on larvae and treatment temperatures on adults, examining adult performance in the false codling moth Thaumatotibia leucotreta (Meyrick). After larvae were reared at 15, 20 or 25 °C for their full developmental period, the effect of different acute (2 h) temperature treatments (10, 15 or 20 °C) during the adult stage on traits of (i) cold tolerance, (ii) fecundity and (iii) longevity were determined. In addition, I assessed the flight performance of adults in both laboratory and field conditions after they were exposed to chilling (2 °C) for 16 h during the adult stage. The cold tolerance of adults was not influenced by larval acclimation temperature but was affected by sex and adult treatment temperature. Adult fecundity and longevity were affected by larval acclimation temperature, adult treatment temperature and the interaction of these factors with sex. In flight assays, adults exposed to 2 °C for 16 h performed better in colder environments, both in the laboratory and the field, than adults not subjected to pre-release cold treatment. The benefits of chilling for improved field recapture rates, however, depended on the specific ambient temperature upon release. These results suggest a complex, and in some cases sexdependent, interplay of short- and longer-term temperature history across developmental stages for these traits. Further studies of how these and other traits might respond to artificial manipulation, coupled with information on how any induced trait variation impacts field performance, are essential for the SIT and pest management, with far-reaching implications for understanding thermal adaptation of ectothermsAFRIKAANSE OPSOMMING: Die steriele insek tegniek (SIT), ‘n proses waartydens insekte in massa geteel, gesteriliseer en vrygelaat word, kan aangewend word om pesbevolkings te beheer en peste van ekonomiese belang te beveg as deel van ‘n geïntegreerde pesbeheer program. Die sukses van SIT-programme hang egter af van die produksie van insekte met goeie gehalte wat kan kompeteer met wilde insekte in die veld. Die invloed van temperatuurvariasies tydens larwale ontwikkeling en die effek van verkoeling tydens berging op die prestasie van volwasse insekte in die veld is onduidelik, maar kan gebruik word om die effektiwiteit van SIT-programme te verbeter. Motte word teen verskillende temperature geteel, hanteer en geïmmobiliseer om hul getalle vir versameling, hantering, irradiasie, vervoer en vrystelling te verhoog. Ongelukkig kan hierdie wisselende temperature tydens produksie, hantering en verskeping ook ‘n ongekende effek op die prestasie van volwasse insekte vanuit ‘n insektarium hê. Ek het hoofsaaklik die invloed van temperatuurbehandeling tydens ontwikkeling en volwasse fase op die volwasse kompeteerbaarheid en prestasie van die valskodlingmot Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) ondersoek. Larwes is teen 15, 20 en 25 ˚C vir die volledige ontwikkelingsperiode geteel, en die effek van akute (2 uur) temperatuurbehandelings (teen 10, 15 en 20 °C) tydens die volwasse stadium is daarna op i) kouetoleransie, ii) fekunditeit en iii) lanklewendheid bepaal. Verder het ek ook die effek van kouebehandeling (teen 2 °C vir 16 ure) op die vlugvermoë van volwasse insekte in die laboratorium en in die veld ondersoek. Die kouetoleransie van volwassenes is hoofsaaklik deur geslag en volwasse temperatuur behandeling beïnvloed maar nie deur die ontwikkelingstemperatuur nie. Alhoewel die ontwikkelingstemperatuur en temperatuurbehandeling ‘n beduidende effek op eierlegging en langlewendheid van die volwasse mot het, is die invloed van hierdie faktore afhanklik van die mot se geslag. Verder het lae-temperatuur behandeling (2 °C vir 16 uur) van volwasse motte ‘n betekenisvolle hoër getal hervangste in beide die laboratorium en veld tydens koeler omgewingstoestande opgelewer in vergelyking met motte wat nie aan die kouebehandeling blootgestel was nie. Die verbetering in hervangstes van volwasse motte in die veld wat aan kouebehandeling bloot gestel was is afhanklik van die temperatuur waaraan die volwasse motte blootgestel word tydens loslaat in die veld. Die resultate dui op ‘n komplekse geslagafhanklike wisselwerking tussen kort- en lang-termyn temperatuurgeskiedenis oor al die ontwikkeling stadiums van betrokke eienskappe wat die effektiwiteit van SIT mag beïnvloed. Verdere navorsing met betrekking tot die invloed van kunsmatige manipulasie asook informasie oor die effek van variasie op sekere eienskappe ten einde fiksheid van volwasse motte in die veld te verbeter is noodsaaklik om die effektiwiteit van SIT en plaagbeheer te verbeter met verrykende gevolge ten einde termiese aanpassings van insekte beter te begryp.Master

Cold Tolerance and Fatty Acid Composition of Striped Bass, White Bass, and Their Hybrids

Cold tolerance of striped bass Morone saxatilis, white bass M. chrysops, palmetto bass (female striped bass × male white bass), and sunshine bass (female white bass × male striped bass) were compared under controlled laboratory conditions. Two groups of each taxon were acclimated at 20°C in a recirculating-water system housed in an environmental chamber and were fed either a natural or prepared diet for 84 d. The fatty acid composition of the natural diet was 13% more unsaturated than that of the prepared diet. Fish fed the natural diet subsequently had unsaturated:saturated fatty acid ratios 10–25% higher than fish fed the prepared diet. After being subjected to identical simulated cold fronts (10°C drop in surface water temperature, as if the fish were confined in cages or pens), all groups of fish fed the prepared diet suffered high mortality (50–90%) whereas there was zero mortality among the groups receiving the natural diet. White bass and sunshine bass fed the prepared diet had higher survival rates (50% and 40%, respectively) compared with their striped bass and palmetto bass counterparts (10% and 20%, respectively). The lower incipient lethal temperature was higher for fish fed the prepared diet (5.9, 4.8, 2.5, and 1.9°C for striped bass, palmetto bass, sunshine bass and white bass, respectively) than for those fed the natural diet (near 0.0°C, but 1.8°C for sunshine bass). Both studies reflect a maternal affect on cold tolerance, with white bass being most tolerant. We demonstrated that diet-induced muscle fatty acid composition directly affects cold tolerance of striped bass, white bass, and their hybrids