Search results

Filter

Filetype

Your search for "*" yielded 534424 hits

Humanister lyfts ur glömskan

Recension av: Monica Lauritzen "Karl Warburg. Den varsamme vägvisaren" och Kjell Espmark "Martin Lamms ögonblick"

Qualitative simulation of bathymetric changes due to reservoir sedimentation : A Japanese case study

Sediment-dynamics modeling is a useful tool for estimating a dam's lifespan and its cost-benefit analysis. Collecting real data for sediment-dynamics analysis from conventional field survey methods is both tedious and expensive. Therefore, for most rivers, the historical record of data is either missing or not very detailed. Available data and existing tools have much potential and may be used for

A comparative evaluation of flood mitigation alternatives using GIS-based river hydraulics modelling and multicriteria decision analysis

A multicriteria framework is developed for the selection of optimal flood mitigation and river training measures in a selected reach of Zaremroud River in Northern Iran. A river model, Hydrologic Engineering Center River Analysis System, combined with geographic information system analysis is used to simulate water levels for steady, gradually varied flow and mapping inundated flood extents. The m

On selection of threshold values in alarm-systems for drinking water monitoring

Med hjälp av ett automatiserat mätsystem för partikelhalter i vatten har vattenkvaliteten vid Borensbergs vattenverk i Motala kommun undersökts under ett års tid med avseende på mikroskopiska partiklar i dricksvatten och råvatten. Antalet mikroskopiska partiklar registrerades som absoluta värden i realtid. I denna artikel diskuteras hur larmgränser skall definieras i praktiken för partikelhalter oDuring a one year long research project at Borensberg Waterworks, Motala, Sweden, water quality with respect to microscopic particle counts both in raw water and drinking water have been monitored by an online water quality monitoring system. Microscopic particle counts were documented with absolute values in real-time. In this paper, a discussion is introduced on how to analyze large data sets fr

Polymorphisms in Manganese Transporters SLC30A10 and SLC39A8 Are Associated With Children's Neurodevelopment by Influencing Manganese Homeostasis

Background: Manganese (Mn) is an essential element but at excessive levels, it is neurotoxic. Even a moderate increase in Mn has been suggested to interfere with neurodevelopment in children. Genetics influencing Mn concentrations and toxicity is unclear. Objective: We assessed, in a cross-sectional study, whether common single-nucleotide polymorphisms in the Mn transporters SLC39A8 (influx) and S

Elevated arsenic exposure and efficient arsenic metabolism in indigenous women around Lake Poopó, Bolivia

Elevated concentrations of inorganic arsenic, one of the most potent environmental toxicants and carcinogens, have been detected in well water around Lake Poopó, Bolivia. This study aimed to assess human exposure to arsenic in villages around Lake Poopó, and also to elucidate whether the metabolism and detoxification of arsenic in this population is as efficient as previously indicated in other An

Improving cyanobacteria and cyanotoxin monitoring in surface waters for drinking water supply

Cyanobacteria in fresh water can cause serious threats to drinking water supplies. Managing cyanobacterial blooms particularly at small drinking water treatment plants is challenging. Because large amount of cyanobacteria may cause clogging in the treatment process and various cyanotoxins are hard to remove, while they may cause severe health problems. There is lack of instructions of what cyanoba

Kan det finnas cyanotoxiner i dricksvatten? / Are there cyanotoxins in the drinking water?

Denna studie syftar till att preliminärt utvärdera förändringar i risken för cyanobakteriella blomningar i en eutrof sjö, Vombsjön, som ligger i södra Sverige och testa hur näringsämnen (fosfor och kväve) påverkar algväxten. Ytvatten som sjöar har stor betydelse för dricksvattenförsörjningen, till exempel hälften av dricksvattnet i Sverige är från ytvatten. Enligt riskmatrisen har Vombsjön en storThis study aims to preliminarily evaluate changes in the risk of cyanobacterial blooms in a eutrophic lake, Lake Vombsjön, in the southern Sweden and test the role of nutrients (phosphorus and nitrogen) in algae formation. Surface water such as lakes service great importance for drinking water supply, such as half of the drinking water in Sweden is from surface water. According to risk matrix, Lak

Impacts of Typhoons on the Vietnamese Coastline: A Case Study of Hai Hau Beach and Ly Hoa Beach.

On average, five to six typhoons hit the Vietnamese coastline every year, often causing great destruction and many deaths as they move in over land. When a typhoon passes it brings high water levels, large waves, strong winds, and heavy rainfall. The high water levels, in combination with large waves, may induce overtopping and erosion of dikes and sand dunes. This can lead to flooding and saltwat

Sweden

The Swedish coast is dominated by rock shorelines (Bird, 1985; Bird and Schwartz 1985). Sand beaches are primarily found in the southern part (Lindh et al., 1970; Rydell et al., 2004), mainly in the county of Scania (Figure 3.1) but also to some extent in Halland, located on the Swedish west coast just above Scania. In Scania, sand constitutes the major source of material along about 200 km of sho

India’s Use of Social Media in Public Diplomacy

Public Diplomacy has assumed great significance in foreign policy and strategic communication for Rising Powers like India and China. These Rising nation-states, with expanding economies and global ambitions, are taking to purposeful communication with global audiences for building positive image and enhancing goodwill. In such efforts, the use of social media has become extensive and widespread.