Benthic invertebrates play important roles as feeding resources for many organisms in different food webs. Shifts in predation of these organisms can generate cascading effects and potentially lead to the disappearance of one or more species from a site. Cascading effects can bring impacts to organisms who aren?t even directly involved, why studies in this field are important for understanding sudden changes in ecosystems. I examined the predation from fish and waterfowl on benthic invertebrates in the shallow and eutrophic Lake Tåkern in the plains of Östergötland County, southern Sweden.

Zero knowledge protocols is a lesser known type of protocol that can be used for identification. These protocols are especially designed not to reveal any information during an identification process that can be misused later on, neither by the one who should be convinced of the identity of the user, nor by anyone else that is eavesdropping. Many of these protocols are also especially designed for implementation in smart cards. The more common type of card with a magnetic stripe has during the last few years become more susceptible to attacks since they are easily copied. Smart cards combined with a secure identification protocol has been predicted to be the solution to this problem.

Summary The leaf beetles, Lilioceris lilii and L. merdigera have existed in Asia, Europe and in North Africa for a long time, but have become much more abundant the last twenty-five years. Even North America has been affected during the last years. The purpose of this investigation of Lilioceris species in Sweden, is to give advice to gardeners, which type of control measures is the most effective in order to restrict their damage to lilies. Lilioceris species overwinter normally as pupae in the soil under the host or close by. Literature and contact with advisors have described the life cycle and spreading of Lilioceris. Under favourable conditions these leaf beetles have two generations/year in the south of Sweden. Both the adults and the larva eat the foliage, and by strong attacks even flowers can be eaten and only the stem is remaining. My own observations include different treatments of both lily foliage and of the leaf beetle.

In 2002 George W. Bush held a speech where he classified six nations as being the main threats to American security, one of them being Syria, a state with a secular constitution, no resent offence towards the US, and with an improved diplomatic relationship to the US during the Clinton years.Being an ally to the Soviet Union during the Cold War Syria was forced to redefine its role in the region. Using neorealistc theory one part conlusion is the fact that the new Syrian leader, Bashar al-Hasad, in the early 21th century determined to set higher goals for the Syrian power ambition in the Middle East, threatened to destabilize the region and leave the US and its allies in a caotic situation.In the US, however, the new administration after 11/9 sharpened its tone towards states that did not cooperate in the new ?war on terrorism? or/and were likely to harbour terrorists. Syria was accused of doing both.

Since events of September 11 and the subsequent conflicts surrounding the event, the war against terrorism has been constantly present. It has been used several methods and strategies to address these threats, including a method current in use, the targeting method. The method refers to use few but precise attacks to knock out key functions within these organizations, mostly individuals in the higher command and control structures within these organizations. The effectiveness of the method has been put in question when the majority of the terrorist organizations continue their strife, in some cases even increasing its intensity. The purpose of this study is to investigate which role the higher command plays in these organizations ability to wage war.

Soapnuts have been used as a cleaning detergent and medicine since ancient times in different parts of Asia. Today soapnuts are sold as an environmentally friendly alternative to common washing detergents. The aim of this literary study is to give an answer to what it is in the soapnuts that makes them work as a washing detergent. The active component belongs to a group of components called saponins which are secondary metabolites with the purpose to protect the tree from pathogen attacks. Saponins are widely spread in the vegetable kingdom and some of the families and species are so rich in saponins that their names are influenced by this, for example Sapnindaceae and Sapindus which are mentioned in the beginning of this literary study.

Lepidosaphes ulmi ? kommasköldlusen har dykt upp som skadegörare i svenska äppelodlingar de senaste åren. Svenska äppelodlare har efterfrågat mer information kring kommasköldlusen och dess naturliga fiender, och därför gjordes denna litteraturstudie. Kommasköldlusen är en pansarsköldlus med ett hårt skyddande skal. Även äggen läggs under skalet och de är därför svåra att bekämpa.

The level of neonate mortality in a free ranging fallow deer (Dama dama) population at the Koberg estate in south western Sweden was investigated using radio-tracking techniques. During this study a total of 36 fawns (17 ?, 19 ?) were captured and marked with vhf or gps radio collars; 12 fawns in 2008 and 24 fawns in 2009. The neonate mortality calculated by the Kaplan-Meier method was 23.6 % and the mortality caused by predation was low, since only 1 of 8 non-surviving fawns died from predation by red fox (Vulpes vulpes). The spatial behavior of the fallow deer neonates were examined at two different levels i.e.

Urban trees have very little in common with trees on natural sites, such as forests or pastures. Trees in urban environments are often planted in packed soil and in small volumes. This can lead to decreased availability of water and oxygen, as well as deteriorated ability for the soil to store nutritional elements. Also above ground the tree usually have limited space in cities. Regulations on free height over roads and cycle tracks demands high stems at an early stage of their development.

Context. In today?s society we use smart cards in many areas, NFC is a smart card technology that allows contactless interaction between a reader and the tag, the tag is often in the form of a card. NFC can be used for various payment methods or as access card to a building which makes life easier. In previous studies, the technique has proven to be weak to attacks using an NFC reader connected to a computer.

The purpose of this study is to examine discussions on the Swedish internet forum ?Flashback? regarding female body hair and the cultural norms that surround it. The discussion is centered around a broadcasted event in which a woman?s hairy armpit was incidentally shown, with a lot of viral hate as a result. Our purpose with this study is to get a deeper insight into viral hate towards women who challenge gender norms.

The aim of this study is to analyze the discussion on the publication of twelve caricatures of the prophet Muhammad, in two Swedish newspapers ? Dagens Nyheter and Sydsvenska Dagbladet. The caricatures were originally published in the Danish newspaper Jyllands-Posten, in September 2005. Even though the violent protests and attacks against Danish interests gained major media attention in Sweden few ? if any ? major Swedish newspapers published the caricatures.Using Fairclough?s Critical Discourse Analysis (CDA), a theory and a method that critically examines the relationship between text, the discourse practice in which text is produced and consumed, and the wider social practice, this study examines why Swedish newspapers chose not to publish any caricatures.The study concludes that the relationship between orders of discourse continuously affect, and is also affected by, Swedish media content.

Att skydda sin IT-miljö mot olika typer av intrång och attacker som till exempel trojaner,skadliga Java applets eller DoS attacker med hjälp av brandväggar och antivirusprogramär två viktiga lager i skalskyddet.I den här uppsatsen undersöks hur väl ett Intrusion Prevention System skulle kunna fungera som ett ytterligare lager i skalskyddet. Fokus ligger på hur väl IPS-systemet klarar av att avvärja attacker, hur mycket tid som går åt till konfigurering och drift för att få ett fungerande IPS samt hur prestandan i nätverket påverkas av implementationen. För att mäta hur väl IPS systemet klarar av att upptäcka och blockera attacker utförs två experiment där ett mindre nätverk attackeras på olika sätt. I det första experimentet skyddas infrastrukturen av en brandvägg och klienterna är utrustade med antivirusprogram. I det andra experimentet genomförs samma attacker igen fast med ett Snort IPS implementerat i nätverket.Resultatet av de genomförda experimenten visar att en IPS klarar att blockera ca 87% av attackerna, men nätverksprestandan påverkas negativt.

We investigated a retirement home, where we looked at whether there are differences, disagreements or conflicts between teams who work day and night shifts. Our purpose was to examine the Heads of Unit and the employees perspectives on their perceived work situation, cooperation difficulties and why they emerged. We chose the general systems theory as our theoretical basis, which gave us the opportunity to highlight different parts that can affect the working climate and the cooperation of the working groups. The study also highlights the importance of structure, common goals, reporting and dialogue meetings. To understand the perceived work situation, we used methodological triangulation, using quantitative and qualitative methods (surveys, semi-structured interviews).

The aim of this paper is to try to explain how specific, foreign policy decisions are made, and why one state decides to use violence against another state. A qualitative method is used, and text and documents are analysed. The two theoretical points of departure are central within foreign policy analysis: realism´s theories on external threats and constructivism´s theories on ideas´ policy influence. The empirical case chosen is the US decision to use military violence against Iraq. The paper investigates whether the real threat from Saddam Hussein´s Iraq was the cause of the American military attacks, or whether the ideas of leading politicians in the USA were decisive for the decision to invade the country.