Nature and time

The focus of this thesis was to study the chemotaxonomic relationship of selected southern Australian marine brown algae of the genera Cystophora and Sargassum. Consequently, this resulted in the isolation and structure elucidation of six new terpenoids from two southern Australian marine brown algae Cystophora moniliformis and Sargassum fallax together with 10 previously reported natural products. As a result of the re-isolation of these known secondary metabolites, updated and complete structural characterisation data could be provided for the first time for 7 of these compounds.

132p runthenight07 01-03-2023 8 3   Download

The rationale for this study is that the social enterprise sector provides an important locale in which to situate research that aims to identify the impact of ICTs on development. Recognising the complex dynamics and range of actors involved in this diverse and emerging area of development practice, this study chooses to focus on the social enterprise sector. It is specifically concerned with mapping the external influences, use and impact of ICT on social enterprises in Cambodia.

228p runthenight04 02-02-2023 22 3   Download

This research project explores the negative environmental impacts of anthropogenic debris by investigating these found materials within the medium of contemporary jewellery objects. Contemporary jewellery objects are a powerful artistic medium. We can wear jewellery on our bodies and carry it with us. Jewellery can sit on or through the body, and at the same time extend beyond our bodies. Jewellery objects can resonate their own space, to be watched, observed publicly or privately, inviting the wearer or voyeur to think, to enquire, to remember and to investigate.

509p runthenight04 02-02-2023 8 2   Download

The central objective of the thesis "An economic analysis of the Australian Baby Bonus" is to examine the nature of the fertility response of Australian families to the financial incentive of the Baby Bonus. The efficacy of the policy in determining a change in both fertility and the timing of births is assessed by exploring the time series properties of national and Victorian fertility measures, while controlling for other possible determinants of fertility choice.

150p runthenight04 02-02-2023 9 2   Download

The goal of the thesis: Determine the time of harvesting the natural growing Dangshen roots; research on inulin extraction, purification, and characterization of inulin molecular structure in Dangshen tubers naturally growing in Lac Duong district, Lam Dong province; research on spray drying to create Dangshen powder and experiment to create a synbiotic powder from spray-drying powder, oriented application in food.

33p guitaracoustic09 14-01-2022 29 1   Download

This study explores the nature of the boycott and its effects on the Vietnamese boycott behavior of China product. The thesis compares the similarities and differences of the components discovered with previous studies. At the same time, this study proposes a theoretical model and verification of the factors that influence the boycotting behavior.

25p beloveinhouse10 28-11-2021 24 1   Download

On the basis of theoretical and practical issues about transnational crime, the thesis researches systematically and clarifies the concept, characteristics, nature, content ... of the ASEAN Community Law on prevention, fight transnational crime. At the same time, to clarify the implementation of the Law on ASEAN Community in Vietnam, thereby giving directions and solutions to perfecting Vietnamese laws on this issue.

25p cothumenhmong10 19-03-2021 31 4   Download

The research also applied historical method and logical method. Specifically, in historical method, the author perceived things and phenomena according to the chronological process (through different time milestones), and the logical method enabled the author to connect all events' sequences and discover the nature of research object. Periodization was also used to study more deeply and discover characteristics of objects and phenomena in specific historical periods.

13p mmlemmlem_124 22-12-2020 18 2   Download

The blends based on polyvinyl chloride (PVC), nitrile-butadiene rubber (NBR), natural rubber (NR) and polyethylene (PE) were made by three different methods. The mechanical properties of these blends in dependence of mixing time and temperature were characterized. The result showed that the two-step blending method, where PVC and NBR were first mixed together and then blended with NR and PE, is the best one to prepare blends with high mechanical properties.

6p 12120609 01-06-2020 16 0   Download

Scenario studies simulate the whole fuel cycle over a period of time, from extraction of natural resources to geological storage. Through the comparison of different reactor fleet evolutions and fuel management options, they constitute a decision-making support.

15p christabelhuynh 30-05-2020 20 2   Download

In this research, the influences of modal properties of a micro cubic satellite on equivalent static loads (due to combination of quasi-static and dynamic loads during launch time) have been studied. The study shows that the magnitude of equivalent static loads can be affected by satellite effective modes and effective mass distribution along natural frequencies.

10p tohitohi 19-05-2020 10 0   Download

Chapter 11 - Planning and organizing. This chapter presents the following content: The nature of planning, types of plans and planning, planning for change, planning your own time, organizing for success.

16p trueorfalse8 07-09-2017 39 4   Download

Research objectives: Can analyze the current situation and characteristics of natural rehabilitation of flora carpet on lands after shifting cultivation as a basis for building the classification of rehabilitation capacity in the study area; can assess the protection capacity of flora carpet on lands after shifting cultivation, can classify rehabilitation potential of forest on lands after shifting cultivation through forest time natural rehabilitation, and propose some silviculture solutions for forest rehabilitation on lands after shifting cultivation in the watershed protection area.

27p change03 06-05-2016 39 5   Download

At the time of implantation in the maternal uterus, the trophectoderm of the pig blastocyst is the source of a massive secretion of interferon-gamma (IFN-c), together with lesser amounts of IFN-d, a unique species of type I IFN. This trophoblastic IFN-c (TrIFN-c) is an unprecedented example of IFN-c being produced spontaneously by an epithelium. We therefore studied some of its structural and biochemical properties, by comparison with pig IFN-c from other sources, either natural LeIFN-c (from adult leucocytes), or recombinant. ...

10p system191 01-06-2013 50 6   Download

The catalytic activity of phenylalanine hydroxylase (PAH, phenylalanine 4-monooxygenase EC 1.14.16.1) is regulated by three main mechanisms, i.e. substrate (L-phenylalanine, L-Phe) activation, pterin cofactor inhibition and phos-phorylation of a single serine (Ser16) residue.To address the molecular basis for the inhibition by the natural cofactor (6R)-L-erythro-5,6,7,8-tetrahydrobiopterin, its effects on the recombinant tetrameric human enzyme (wt-hPAH) was studied using three different conformational probes, i.e.

10p tumor12 20-04-2013 34 3   Download

Bone alkaline phosphatase with glycolipid anchor (GPI-bALP) from chick embryo femurs in a medium without exogenous inorganic phosphate,but containing calcium and GPI-bALP substrates,served asin vitro model of min-eral formation. The mineralization process was initiated by the formation of inorganic phosphate,arising from the hydrolysis of a substrate by GPI-bALP. Several minerali-zation media containing different substrates were analysed after an incubation time ranging from 1.5 h to 144 h.

9p fptmusic 16-04-2013 45 2   Download

The natural transformation system of the thermophilic bacteriumThermus thermophilus HB27 comprises at least 16 distinct competence proteins enco-ded by seven distinct loci. In this article, we present for the first time biochemical analyses of the Thermus thermophiluscompetence proteins PilMNOWQ and PilA4, and demonstrate that thepilMNOWQgenes are each essential for natural transformation.

12p inspiron33 25-03-2013 38 3   Download

We study enhancement of diffusive mixing on a compact Riemannian manifold by a fast incompressible flow. Our main result is a sharp description of the class of flows that make the deviation of the solution from its average arbitrarily small in an arbitrarily short time, provided that the flow amplitude is large enough. The necessary and sufficient condition on such flows is expressed naturally in terms of the spectral properties of the dynamical system associated with the flow. In particular, we find that weakly mixing flows always enhance dissipation in this sense. ...

33p dontetvui 17-01-2013 49 9   Download

Bowen’s formula relates the Hausdorff dimension of a conformal repeller to the zero of a ‘pressure’ function. We present an elementary, self-contained proof to show that Bowen’s formula holds for C 1 conformal repellers. We consider time-dependent conformal repellers obtained as invariant subsets for sequences of conformally expanding maps within a suitable class.

55p dontetvui 17-01-2013 54 7   Download

In [KSb] we studied the following model for the spread of a rumor or infection: There is a “gas” of so-called A-particles, each of which performs a continuous time simple random walk on Zd , with jump rate DA . We assume that “just before the start” the number of A-particles at x, NA (x, 0−), has a mean μA Poisson distribution and that the NA (x, 0−), x ∈ Zd , are independent. In addition, there are B-particles which perform continuous time simple random walks with jump rate DB . We start with a finite number of B-particles...

67p dontetvui 17-01-2013 48 6   Download