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Since the discovery of the mesoporous silica material templated by ionic surfactants and the subsequent development of materials templated by non-ionic surfactants and polymers, for example SBA-15, there has been a continuous research effort towards understanding their formation. In situ methodologies, such as Small Angle X-ray Scattering (SAXS), Small Angle Neutron Scattering (SANS), spectroscopi
Zone folded coherent acoustic phonons were generated in a multilayered GaSb/InAs epitaxial heterostructure via rapid heating by femtosecond laser pulses. These phonons were probed by means of ultrafast x-ray diffraction. Phonons both from the fundamental acoustic branch and the first back-folded branch were detected. This represents the first clear evidence for phonon branch folding based directly
Microsphere-based constitutive models are a helpful tool in the modelling of materials with a microstructure composed of contributing elements directionally arranged. This is the case, for instance, for fibred soft tissues. In these models, the macroscopic mechanical behaviour is obtained from the integration of the micro-structural contribution of each component (e.g. each fibre) over the surface
Cerebral ischemia that develops after subarachnoid hemorrhage (SAH) carries high morbidity and mortality. Inflammatory mediators are involved in the development of cerebral ischemia through activation of the mitogen-activated protein kinase pathway. We hypothesized that blockade of the MAPkinase/ERK (MEK)/extracellular signal-regulated kinase (ERK) pathway upstream with a specific raf inhibitor wo
Obese patients are prone to arterial hypertension, require more antihypertensive medications, and have an increased risk of treatment-resistant arterial hypertension. Obesity-induced neurohumoral activation appears to be involved. The association between obesity and hypertension shows large inter-individual variability, likely through genetic mechanisms. Obesity affects overall cardiovascular and
Popular Abstract in Swedish Eftersom allt i och runt oss består av kemikalier är det av högsta vikt att vi förstår hur dessa reagerar med varandra. Katalytiska omvandlingar är kemiska reaktioner där en katalysator underhåller en reaktion utan att själv förbrukas. Inom metallorganisk kemi är tillverkning och förstålelsen av hur komplex med övergångsmetaller kan användas vi katalys mycket viktig. KoAbstract The work presented in this thesis discusses synthesis of PCP-complexes and utilisations of such organometallic compounds in catalysis. The complexes, obtained by intramolecular Csp3-H activation, are based on the metals palladium, platinum and iridium. The synthesis of PCP-ligands include new and improved preparative routes to the previously known cis-1,3-bis-(di-iso-propylphosphinito)cy
Contributing to the design update phase of the European Spallation Source ESS-scheduled to start operation in 2019-a test beamline is under construction at the BER II research reactor at Helmholtz Zentrum Berlin (HZB). This beamline offers experimental test capabilities of instrument concepts viable for the ESS. The experiments envisaged at this dedicated beamline comprise testing of components as
The two-body photodisintegration of He-3 has been investigated using tagged photons with energies from 14-31 MeV at MAX-lab in Lund, Sweden. The two-body breakup channel was unambiguously identified by the (nonsimultaneous) detection of both protons and deuterons. This approach was made feasible by the overdetermined kinematic situation afforded by the tagged-photon technique. Proton-and deuteron-
A measurement of the total pp cross section at the LHC at root s = 7 TeV is presented. In a special run with high-beta* beam optics, an integrated luminosity of 80 mu b(-1) was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t. The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the diffe
The study field of the thesis is regional integration in Africa. The focus is set on the African Union (AU) and its main programme for promoting democracy on the continent, the New Partnership for Africa´s Development (NEPAD). By applying two theories, one on democratization through regional organizations and the other on hidden agendas within them, the thesis makes an assessment on the work for d
The aim of this phenomenological study was to explore what role teachers at introductory programmes (SFI-schools) play in the integration of immigrants, how the teachers experience their work and what they feel about the situation in which their students, the immigrants, are. To what extent and in what way do the teachers contribute to facilitating the integration of the immigrant students? The s
With the diminishing reserves of oil and the growing public concern for environmental issues, the end of gasoline powered vehicles is getting closer each year. To prevent this from causing the personal and comfortable way of transportation mankind has gotten used to, to die with them, an alternative without the downsides of the gasoline engine must be developed. The environmentally friendly electr
This paper aims to examine the arguments proposed by the Obama administration regarding a U.S. military intervention in Syria due to the use of chemical weapons by the Syrian regime in 2013. During his presidency, Obama stated that the He draws a ‘red line’ at the use of chemical weapons against civilians, but the threat proved to be empty a year later when thousands of people were killed in a che
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 chapter examines how people associate various sex work activities with the exchange of sexual services for payment. It considers both in-person activities, such as sexual intercourse, oral sex, erotic massage, and dancing, as well as remote, digitally mediated activities like webcamming and the production of pornographic videos and photos. Drawing on an original US survey of adults (n = 1,024
Denna uppsats ämnar utreda värdeöverföringsbegreppets historia, dess definition samt hur bestämmelserna rörande förtäckta värdeöverföringar förhåller sig gentemot rättssäkerhet. Sedan begreppets introduktion i den svenska aktiebolagslagen har detsamma varit föremål för diskussion. Diverse sakkunniga inom det associationsrättsliga området har både prisat och kritiserat värdeöverföringsbegreppet ochThe aim of this thesis is to examine the concept of value transfer, its definition and how the regulation regarding disguised value transfers complies with legal certainty. Since its introduction in the Swedish Companies Act, the concept has been a subject of discussion. Various experts within the field of company law have both praised and criticized the concept of value transfer and its function
This thesis seeks to examine the suitability and robustness of transfer learning models in creating an efficient reCAPTCHA v2 classifier, and further evaluates their performance against various adversarial attacks. Three models - DenseNet201, EfficientNetV2, and InceptionV3 - were trained and assessed, highlighting the applicability of transfer learning techniques in the classification of reCAPTCH
ISIS committed mass atrocities against the Yazidis (Kurdish: Êzîdîs) in Sinjar (Kurdish: Şingal), Iraq, in 2014-2017. Several international and regional observers have qualified the acts as genocide under international law. Yet the numerous social, cultural, and political preconditions of the genocide are not recognized in the 1948 Genocide Convention. To answer the line of question, Susan Opotow’
