Human Trafficking and Terrorism: Utilizing National Security Resources to Prevent Human Trafficking in the Islamic State

This is a report of a Master’s thesis done in behalf of the local network in Stockholm, under Fortum Distribution AB. The thesis was to conduct a review of a distribution station named Fs Myrängen located in Täby. A model was created for the 11 kV network linked to the secondary side of Fs Myrängen. Based on this model and using symmetrical components, theoretical fault currents (short circuit and ground fault) could be calculated. The results of these fault currents are used to investigate and develop new settings for relay protection and ground equipment in the station. The results of the calculated fault currents were also used to investigate unwanted voltages that occurs for grounded parts due to earth faults. The value of these unwanted voltages was then compared to heavy current regulations developed by the Electrical Safety Authority in Sweden. Another element of the work was to create a rehabilitation plan for the structure on the 11 kV side of Fs Myrängen, the main goal regarding the rehabilitation plan was to investigate the advantages and disadvantages that exist at a possible transition to numerical protection relays. This was done by making a market overview of the different types of numerical protection relays and compare these with the existing analog protective device in Fs Myrängen. The study showed that protective relay settings should be revised according to the recommendations in the report, ground equipment should be replaced with a self-regulating type, transformers should be replaced due to age and capacity limitations. Regarding a switch to numerical protection relays the type REF615 from ABB was recommended, in that case the control board in the station should be replaced to a station computer. Furthermore should current transformers be replaced to recive a desired sensitivity regarding detection of ground faults. The report also showed that Fs Myrängen meets the regulations of unwanted voltages over grounded parts in distribution stations due to earth faults.Detta är en rapport av ett examensarbete utfört i uppdrag av lokalnät Stockholm under Fortum Distribution AB. Examensarbetet gick ut på att göra en översyn av en fördelningsstation vid namn Fs Myrängen som är belägen i Täby. En modell skapades av 11 kV nätet kopplat till Fs Myrängen, utifrån denna modell samt med hjälp av symmetriska komponenter beräknades teoretiska felströmmar både för kortslutning och jordslutning. Resultaten av dessa felströmmar användes för att utreda och ta fram inställningar på reläskydd och nollpunktsutrustning i stationen. Resultaten på framräknade jordfelsströmmar användes även för att utreda vilken spänningssättning som uppstår vid jordfel, i de nätstationer som matas av Fs Myrängen. Spänningssättningen på nätstationerna jämfördes sedan med de starkströmsföreskrifter som är framtagna av elsäkerhetsverket. Ett annat moment i arbetet var att skapa en upprustningsplan för skyddsanordningen på 11 kV sidan i Fs Myrängen, huvudmålet för den biten var att utreda vilka fördelar och nackdelar som finns vid en eventuell övergång till numeriska skydd. Detta gjordes genom att göra en marknadsöversikt över olika typer av numeriska reläskydd, samt jämföra dessa med den befintliga skyddsanordningen i Myrängen som är av analog typ. Studien visade att reläskyddsinställningar bör ses över enligt rekommendationer i rapporten, nollpunktsutrustningen bör bytas ut till självreglerande typ, transformatorerna bör bytas ut p.g.a. ålder och kapacitetsbegränsning. Gällande skyddsanordningen rekommenderas en övergång till numeriska skydd av typen REF615, och i samband med detta byta ut den befintliga kontrolltavlan i stationen till en stationsdator. Vidare bör även strömtransformatorer för jordfelsskydden bytas ut för att uppnå önskad känslighet gällande detektering av jordfel. För spänningssättning av nätstationer vid jordfel, visar resultaten att stationen uppfyller kraven enligt starkströmsföreskrifterna från elsäkerhetsverket

Implications of skeletal muscle loss for public health nutrition messages:a brief report

Age-related skeletal muscle loss, sarcopenia, cachexia and wider malnutrition (under nutrition) are complex in aetiology with interaction of clinical, social and economic factors. Weight loss and loss of skeletal muscle mass in older people are associated with increased morbidity and mortality with implications for increasing health and social care costs. There is insufficient evidence to identify the ideal treatment options. However, preventing weight loss and loss of skeletal muscle in older age will be keys to reducing morbidity and mortality. This will require all those coming into contact with older people to identify and address weight loss early, including through diet, improving physical activity and increasing social interaction. Public health messages on diet should, in the main, continue to focus on older people achieving current UK dietary recommendations for their age as visually depicted in the eatwell plate together with associated messages regarding dietary supplements where appropriate

Evaluation of Composite Materials for Use on Launch Complexes

Commercially available composite structural shapes were evaluated for use. These composites, fiberglass-reinforced polyester and vinylester resin materials are being used extensively in the fabrication and construction of low maintenance, corrosion resistant structures. The evaluation found that in many applications these composite materials can be successfully used at the space center. These composite materials should not be used where they will be exposed to the hot exhaust plume/cloud of the launch vehicle during the liftoff, and caution should be taken in their use in areas where electrostatic discharge and hypergolic propellant compatibility are primary concerns

THE BIOLOGICAL AND STRUCTURAL CHARACTERIZATION OF TRANSFERABLE BACTEROIDES R PLASMIDS

In this literature review I will briefly describe the general biology of transferable antibiotic resistance in bacteria, the genetic elements involved (plasmids) and several specific plasmid associated phenotypes. This will be followed with a review of the general biology of Bacteroides, the information known concerning its plasmid reservoir and finally a review of the information documenting the emergence of transferable clindamycin resistance in Bacteroides. The latter aspect represents the central focus of research described in this thesis

The credibility and performance of unilateral target zones: a comparison of the Mexican and Chilean cases

Foreign exchange rates ; Mexico ; Latin America

Radiation trapping in coherent media

We show that the effective decay rate of Zeeman coherence, generated in a Rb87 vapor by linearly polarized laser light, increases significantly with the atomic density. We explain this phenomenon as the result of radiation trapping. Our study shows that radiation trapping must be taken into account to fully understand many electromagnetically induced transparency experiments with optically thick media

The Role of Adult Fiddler Crab Environmental Acoustic Cues and Chemical Cues in Stimulating Molting of Field-Caught Megalopae

In mid-Atlantic estuaries, three fiddler crab species, Uca pugilator, Uca pugnax and Uca minax co-occur, with their adults occupying different habitat types distinguished by salinity and sediment size. Some evidence exists that selective settlement is responsible for this separation but the mechanism is largely unknown. We tested the hypothesis that field-caught megalopae would accelerate metamorphosis in the presence of adult species-specific environmental acoustic cues and conspecific chemical cues. We placed megalopae in seawater with and without adult chemical cues, exposed them to one of three sound treatments for 8 days, and recorded the time each megalopa took to metamorphose. In the absence of adult chemical cues, very few megalopae molted regardless of sound treatment. Molting in the presence of habitat sound and chemical cues varied by species. Many U. pugilator molted in all sound and odor combinations, including no odor/sound. U. pugnax was stimulated to molt by chemical cues from either U. pugilator or U. pugnax, but molting was similar across sound treatments. Our results do not support the hypothesis that sound stimulates molting by fiddler crab megalopae, but support the role of chemical odors from adults as molting cues