Sökresultat

Saltwater intrusion is the most challenging problem in coastal regions. To prevent saltwater intrusion, saltwater pumping from a barrier well is widely applied, which is a direct abstraction of intruded saltwater from a coastal aquifer. Owing to its easy installation, many studies have been carried out. However, quantitative relationships between barrier and inland production well have not been re

In this Master’s thesis, two different 28 GHz Doherty power amplifiers (DPAs) are designed, for high power added efficiency (PAE), in the common source (CS) and cascoded topology respectively. The results are analyzed and compared between the two approaches. The DPAs are designed using AWR design environment with virtual source (VS) models of In(Ga)As nanowire transistors and 50 nm gate length. Th

High-Level Synthesis(HLS) is a design methodology that enables designers to implement hardware from high-level coding languages, such as C, C++, or System C. It provides designers with the ability to convey their design at a higher level of abstraction, which allows more emphasis on an algorithm and functional aspects of design instead on low-level hardware details. As precise control of signal ti

This thesis examines the relationship between Environmental Social and Governance (ESG) factors and investment strategies. Specifically, it focuses on how ESG scores can influence investment decisions within companies listed on the DAX Index, the benchmark German stock market index. Using Granger causality on individual companies from the DAX and on portfolios built on the ESG score of companies w

OBJECTIVE: To determine the impact of improved glycemic control on the development and progression of retinopathy after the institution of insulin therapy in patients with type 2 diabetes and to assess the relation to IGF-1 and hemostatic variables. RESEARCH DESIGN AND METHODS: In a prospective observational study, 45 type 2 diabetic patients were examined at baseline and 1, 3, 6, 12, and 24 month

P>Few data illustrate the man's reaction to orchidectomy. We investigated long-lasting feelings of loss and uneasiness or shame about the body after removal of a testicle by orchidectomy. We identified 1173 eligible men diagnosed with non-seminomatous testicular cancer treated according to the national cancer-care programmes Swedish-Norwegian Testicular Cancer Group I-IV between 1981 and 2004. We

The standard pharmacological treatment for Parkinson's disease using the dopamine precursor levodopa is unfortunately limited by gradual development of disabling involuntary movements for which the underlying causes are poorly understood. Here we show that levodopa-induced dyskinesia in hemiparkinsonian rats is strongly associated with pronounced 80 Hz local field potential oscillations in the pri

Intact and permeabilized yeast cells were tested as the biorecognition elements for amperometric assay of formaldehyde (FA). For this aim, the mutant G 105 (gcr1 catX) of the methylotrophic yeast Hansenula polymorpha with a high activity of AOX was chosen. Different approaches were used for monitoring FA-dependent cell response including analysis of their oxygen consumption rate by the use of a Cl

Populärvetenskaplig sammanfattning: Hjälper Nhandugue-flodens vatten Urema-sjön i Gorongosa Nationalpark, Moçambique, från att torka ut? I de centrala delarna av Moçambique ligger Gorongosa Nationalpark som skyddar ett omfattande ekosystem av flodplan, gräsmarker och skogsbeklädda områden. Efter drygt 20 år av inbördeskrig hade 1994 antalet stora däggdjur, så som lejon, zebror och bufflar, minskatGorongosa National Park in central Mozambique is situated at the southernmost extension of the East African Rift System (EARS), the Urema Rift. The park is protecting a vast ecosystem of floodplains, grasslands and woody coverage. From 20 years of civil war the large-mammal population in the park had in year 1994 been reduced by 90 % or more, and in 2004 a restoration project was started in order

Priming effects have gotten revived interest in the last decade due to the concerns of global warming. Priming are defined as an increase in decomposition of soil organic matter due to the addition of organic or mineral substances. The worldwide used herbicide glyphosate is rapidly degraded by microorganisms. Hence, it might give rise to priming effects in soils. This was tested by adding glyphosa

Roten till cancer? Cancer är en ledande orsak till en stor mängd dödsfall i världen och därför en fruktad sjukdom. Forskningen gör dock framsteg och man kommer allt närmre svaren på gåtorna. På senare år har det föreslagits att en speciell typ av celler, cancerstamceller, är drivande och ligger bakom flera av cancersjukdomarnas egenskaper. Alla organismer är uppbyggda av celler, den stora majoriIn recent years increasing evidence supporting the stem cell hypothesis have emerged and cancer stem cells (CSCs) have been reported to have been isolated in a wide variety of cancers. This CSC population has been attributed to contribute to the therapeutic resistance of many cancers and it is thus of great interest to find new therapeutic options targeting these cells. In ileal carcinoids however

This study discusses the effects of economic development on female labor force participation rates in Turkey in 1980-2000 within the framework of U-shaped hypothesis. In addition to the effects of economic development, other determinants of female labor force participation are also analyzed in five different econometric models. Descriptive statistics including time series evidences are exhibited i

This thesis investigates whether incorporating the Christoffersen independence test into regulatory backtesting frameworks can enhance financial stability by improving the detection of systemic risk. Using daily Value-at-Risk and profit-and-loss data from 13 major international banks over 2018–2022, the study distinguishes between clustered and isolated VaR exceptions, applying event studies and p