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This study was carried out with the intention of examining the defensive mechanism employed against the latest cyber espionage methods including both insider and outsider attacks. The main focus of this study was on web servers as the targets of the cyber attacks. Information in connection to the study was obtained from researchers’ online articles. A survey was also conducted at MidSweden University in order to obtain information about the latest cyber attacks on web servers and about the existing defensive mechanism against such attacks. The existing defensive mechanism was surveyed and a simple design was created to assist in the investigation of the efficiency of the system. Some simple implementations of the existing defensive mechanism were made in order to provide some practical results that were used for the study. The existing defensive mechanism was surveyed and improved upon where possible. The improved defensive mechanism was designed and implemented and its results were compared with the results from the existing defensive mechanism. Due to the fact that the majority of the attackers use defensive mechanisms’ vulnerability in order to find their way into devices such as web servers, it was felt that, even with the most sophisticated improved defensive mechanism in place, it would not be entirely correct to claim that it is possible to fully protect web servers against such attacks.

Caenorhabditis elegans is a natural predator of the mushroom pathogen Pseudomonas fluorescens NZI7. The bacterial mechanisms for reducing predation by the nematode through the secretion of secondary metabolites have been described, but not yet fully explored. The behaviour of nematodes is influenced by the different factors produced by the pseudomonads. In this thesis we develop a range of assays to link the behaviour of C. elegans to these factors to identify their role in bacteria-nematode interactions. We show that these factors play two distinct roles: they may either repel nematodes, or harm them. This permits the classification of mutants of P. fl. NZI7 lacking these factors as either attractive, edible or both. Many studies of C. elegans behaviour have demonstrated that the nematode can distinguish between different food sources. Our results show two distinct types of response: chemotaxis drives the response to attractive or repellent stimuli, and nematodes also show a choice behaviour that is independent of chemotaxis. This choice behaviour is determined by bacterial edibility and requires nematodes to come into contact with the bacteria. This contact is the foundation of the bacterial dispersal by nematodes. By making use of the luminescence property of the available bacterial mutants, we demonstrate an intimate link between the behaviour of C. elegans and the success with which bacteria are disseminated: if nematodes are induced to regularly leave a bacterial colony, whether through their genotype or the low edibility of the food, then they will spread bacteria effectively. Throughout this thesis, we use computational simulations based on a hybrid cellular automaton model to represent the nematode-bacteria interactions. These simulations recreate the observed behaviour of the system, thus they help to confirm our hypotheses and establish the fundamental aspects of the interactions between the two species.

Hybrid warfare is a phenomenon that have gained an ever increasingly amount of attention in the aftermath of the events in Ukraine 2014. A war broke out between on one hand Ukraine and the other hand an opponent who seems to be composed of so called “little green men”. The war has been waged with methods that has reached beyond the conventional way of waging. And while there are many discussions amongst the cadets at the Swedish Military Academy concerning what exactly hybrid warfare is, not much have been said about what to do about it.  The following essay will address hybrid warfare and defence against hybrid warfare and with the help of a theoretical framework based upon military science investigate how Sweden responds to the threats connected to hybrid warfare on a strategic level.  The result of the research done will show how Swedish strategic doctrines identifies the threats of hybrid warfare and suggests a holistic approach in both how to deny the opponent the opportunity to use hybrid warfare and how to counter hybrid threats.

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Exocyst is an octameric protein complex, conserved across all Eukaryotes. Its role, originally described in yeast, resides in a tethering of the secretory vesicles to the plasma membrane prior to the membrane fusion of the two membranes. Subunits SEC3 and EXO70 are believed to be spatial landmarks for the vesicles delivery. While yeast genome encodes single EXO70, we find dozens of them in land plants (23 in Arabidopsis). This work is focused at a role of the exocyst complex in plant cells. Its first part documents, that exocyst is essential for delivery of the cell wall components, namely pectins, but also for pathogen induced secondary cell wall thickening. Second part reveals an unconventional role of EXO70B1 subunit harboring exocyst subcomplex at an autophagic pathway to the vacuole and raises many questions about plant secretory pathway.

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This thesis deals with the current issue of discrimination in the workplace, especially focuses on discrimination based on age and sex, sexual harassment and bullying in the workplace, legislation that regulates the area of discrimination in labor relations. The theoretical section includes explanations of terms and connections to a given focus and the practical part includes a probe into five large companies examining whether the effects mentioned in the theoretical part actually occur in practice, or how these problems are solved. This probe was in the form of semi-structured interview respondents in their workplaces. The results confirmed the claim that one of the most vulnerable group are women. Larger companies are trying to provide them a variety of advantages as for example flexible-time work, etc. Some companies have confirmed that there were some cases of bullying or sexual harassment in their firm, but these situations have not been solved other than by the dismissal of one of the participants. However, the occurrence of age discrimination was in the surveyed companies not confirmed - despite the theoretical claims and personal experience. It also showed that the respondents, HR professionals from large companies, have a poor conception of the possible solutions of those situations and...