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  • 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.
121

Changing Land Use, Climate, and Hydrology in the Winooski

Hackett, William 02 October 2009 (has links)
This study analyzes temporal trends and periodicity in seventy years of publicly available stream discharge and climate data for the Winooski River Basin of northern Vermont as well as lake level data for adjacent Lake Champlain. We also use random sampling and manual, point-based classification of recent and historical aerial imagery to quantify land use change over the past seventy years in the 2,704 km2 Winooski River Basin of northern Vermont. We find a general increase in annual precipitation, discharge, and mean lake level with time in the basin; discharge increases 18% over the period of record while precipitation increases by 14%. Over the last 70 years, mean annual temperature has increased at the Burlington Vermont station by 0.78 degrees Celsius (1.4 degrees Fahrenheit). Four sets of aerial photographs, taken at intervals of 12 to 29 years between 1937 and 2003 at thirty randomly selected sites, demonstrate that actively cleared land area has decreased by 14%, while forested land and impervious surfaces increased by 10% and 5%, respectively. Spectral analysis of precipitation, discharge and lake level data show a ~7.6 year periodicity, which is in phase with the North Atlantic Oscillation (NAO); higher than average precipitation and discharge are most likely when the NAO is in a positive mode. The NAO relationship demonstrates that discharge is largely controlled by precipitation; anthropogenic changing climate and changing land use over the past 70 years appear to have subtly changed the seasonality of discharge and caused an increase in base flow.
122

Trading constraints and the investment value of real estate investment trusts : an empirical examination

Mühlhofer, Tobias January 2005 (has links)
This study focuses on the property-derived cash flows that a REIT investor earns. We observe that, in the short run, REIT investors are only exposed to the income cash flows of a REIT's underlying portfolio and not to its property price fluctuations. Specifically, investors miss out on the component of appreciation returns not contained in income. Chapter 3 observes this phenomenon and argues, without proof, that this is due to the trading restrictions that REITs face in order to operate tax free, which impose minimum holding periods on properties in REITs' portfolios. Chapters 4 and 5 show that the trading-restrictions explanation is indeed the reason for this phenomenon. Specifically, chapter 4 tests how REITs with different firm characteristics are differently affected by the trading constraints. Firstly, we test for size effects and find that medium-sized and large firms offer investors better exposure to short-term fluctuations in property appreciation than small firms. This supports the trading restrictions hypothesis, as large firms are less affected by these. Secondly, we test for the effects of the degree of diversification in a REIT's portfolio and find that, while investing in a REIT which is diversified by property type gives an investor better exposure to appreciation cash flows, investing in one whose portfolio is merely geographically diversified does not. Finally, we test whether UPREITs give an investor better exposure to property appreciation cash flows and find strongly that this is so. Since the partnership that holds the property in an UPREIT is not subject to selling constraints, we find our hypothesis strongly supported. Chapter 5 analyzes holding periods and selling decisions. We firstly simulate a possible filter-based market timing strategy which significantly outperforms a simple buy-and-hold strategy, and demonstrate to what extent holding periods shorter than what is allowed are required. We then analyze actual holding periods of properties in REITs' portfolios and model the decision to hold a property beyond four years, finding strong evidence that there is an incentive to do so in a rising market. This gives strong support to the trading-restrictions explanation.
123

'n Evaluering van die teorie en praktyk van hipnose as terapeutiese tegniek

17 November 2014 (has links)
M.A. (Psychology) / Please refer to full text to view abstract
124

Investigation on ion channel interactions and neuroprotective activities of novel peptides from medicinal coral

Li, Sheng Nan January 2018 (has links)
University of Macau / Institute of Chinese Medical Sciences
125

Siegesbeckia pubescens extract attenuates Pam3CSK4-induced inflammation in RAW 264.7 macrophages through suppressing TLR1 TLR2-mediated NF-κB activation

Sang, Wei January 2018 (has links)
University of Macau / Institute of Chinese Medical Sciences
126

Condom use among romantic partners: an integrative model of individual and relationship factors. / Condom use within relationships

January 2008 (has links)
Leung, Yat Chi Stephanie. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 73-90). / Abstracts in English and Chinese. / ABSTRACT --- p.i / 摘要(ABSTRACT IN CHINESE) --- p.ii / ACKNOWLEDGEMENTS --- p.iii / TABLE OF CONTENTS --- p.iv / LIST OF TABLES --- p.v / LIST OF FIGURES --- p.vi / Chapter CHAPTER I: --- INTRODUCTION --- p.1 / PREVALENCE OF STDS --- p.1 / CONDOM USE AS AN EFFECTIVE PROTECTION AGAINST STDS --- p.4 / CURRENT RESEARCH ON CONDOM USE --- p.5 / PROPOSED MODEL --- p.7 / "ATTITUDE, SUBJECTIVE NORM, PERCEIVED BEHAVIORAL CONTROL, AND BEHAVIORAL INTENTION" --- p.7 / FEAR OF AIDS --- p.10 / CONDOM USE KNOWLEDGE --- p.12 / RELATIONSHIP POWER --- p.14 / RELATIONSHIP COMMITMENT --- p.17 / DYADIC SEXUAL COMMUNICATION --- p.19 / OVERVIEW OF THE STUDY --- p.22 / Chapter CHAPTER II: --- METHOD --- p.25 / PARTICIPANTS --- p.25 / PROCEDURE --- p.27 / MEASURES --- p.28 / ANALYSES --- p.33 / Chapter CHAPTER III: --- RESULTS --- p.35 / CONDOM USE PATTERNS --- p.35 / DESCRIPTIVE STATISTICS --- p.36 / MEDIATING ROLE OF CONDOM USE INTENTION --- p.40 / DECOMPOSITION OF THE EFFECT OF SUBJECTIVE NORMS --- p.42 / MULTI-SAMPLE INVARIANCE ANALYSIS --- p.43 / Chapter CHAPTER IV: --- DISCUSSION --- p.54 / CONDOM USE CONSISTENCY AMONG PARTICIPANTS --- p.54 / DIFFERENCES BETWEEN CONSISTENT AND NON-CONSISTENT CONDOM USERS --- p.56 / UTILITY OF THE PROPOSED MODEL --- p.56 / "ATTITUDES, SUBJECTIVE NORMS, PERCEIVED BEHAVIORAL CONTROL, INTENTIONS AND CONDOM USE" --- p.57 / FEAR OF AIDS AND CONDOM USE --- p.58 / CONDOM USE KNOWLEDGE AND CONDOM USE --- p.59 / RELATIONSHIP POWER AND CONDOM USE --- p.60 / RELATIONSHIP COMMITMENT AND CONDOM USE --- p.61 / DYADIC SEXUAL COMMUNICATION AND CONDOM USE --- p.63 / APPLICABILITY OF THE PROPOSED MODEL ACROSS GENDER AND SEXUAL ORIENTATION --- p.64 / LIMITATIONS OF THE STUDY --- p.68 / IMPLICATIONS FOR FURTUER RESEARCH --- p.70 / REFERENCES --- p.73
127

Reservoir location and recreational impact in Kansas

Riffel, Douglas L January 2010 (has links)
Digitized by Kansas Correctional Industries
128

Carrying capacity as a constraint affecting land use

Chang, Wilson Wu-Chun January 2010 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
129

紫杉醇脂質體製備工藝和處方的改進

文詩泳, 01 January 2010 (has links)
No description available.
130

Investigation of liposomes and liposomal gel for prolonging the therapeutic effects of pharmaceutical ingredients

Chen, Xiaoyu 01 January 2013 (has links)
No description available.

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