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In the present study, a new and versatile liquid-phase microextraction method is described. This method requires very simple and cheap apparatus and also a small amount of organic solvent. Eight microliters of 1-undecanol was delivered to the surface of solution containing analytes and solution was stirred for a desired time. Then sample vial was cooled by inserting it into an ice bath for 5 min.

Today many households in Sweden use small on-site sewage facilities to take care of their own wastewater which is then treated and released into the environment. The sewage sludge that remains contain many nutrients, like phosphorous and nitrogen, which could potentially be reused as fertilizers. The sludge is usually contaminated with pathogens and unwanted or even toxic substances and if not tre

Long-chain n-6 and n-3 PUFA (LC-PUFA), arachidonic acid (AA) (20:4n-6) and DHA (22:6n-3), are critical for optimal brain development. These fatty acids can be consumed directly from the diet, or synthesized endogenously from precursor PUFA by Δ-5 (encoded by FADS1) and Δ-6 desaturases (encoded by FADS2). The aim of this study was to determine the potential importance of maternal genetic variabilit

In contemporary enterprises, customer satisfaction analysis has become a critical area of concentration. Being able to understand and predict customer satisfaction is becoming more and more important as companies try to develop and launch new products. Leveraging customer data intelligently and employing robust data analytics techniques are essential for meeting this imperative. With this objectiv

Crop pests, such as aphids and bark beetles, represent a big challenge for agriculture worldwide. Due to their high adaptability and more suitable conditions because of climate change, they can thrive on a large number of hosts. One of the strategies to control the population of these pests in agricultural areas is the use of pheromones, either to lure them, repel them or to attract predators as a

Mapping in situ eddy covariance measurements of terrestrial land–atmosphere fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global products (called X-BASE) from a newly implemented upscaling framework, FLUXCOM-X, representing an advancement from the previous generation of FLUXCOM products in terms of flexibility and technica

Background: High gluten and low dietary fiber in pregnancy intake is associated with an increased risk of celiac disease (CeD) in the child. Early life higher dietary quality is suggested to reduce the subsequent risk of CeD. Objectives: The aim was to investigate associations of pregnancy dietary quality and diversity with child risk of CeD. Methods: In The Norwegian Mother, Father and Child Coho

This thesis examines how generative artificial intelligence (GenAI) reshapes product development in creative industries through an in-depth case study of a German women’s fashion and lifestyle brand. The study addresses a gap in existing research by analyzing how GenAI reconfigures product development as a process structured by prediction, judgment, and action in a context where tacit knowledge, s

Shikimic acid is one of several industrially interesting chiral starting materials formed in the aromatic amino acid pathway of plants and microorganisms. In this study, the physiology of a shikimic acid producing strain of Escherichia coli (derived from W31 10) deleted in aroL (shikimic acid kinase II gene), was compared to that of a corresponding control strain W31 10) under carbonand phosphate-

Synthesis, solvent-, and guest-controlled self-assembly, and self-sorting of new hydrogen-bonded chiral cavity receptors are reported. The design of the cavity is based on the cyclic self-aggregation of monomers containing the 4H-bonding ureidopyrimidinone motif fused with the bicylo[3.3.1]nonane framework. Selective formation of kinetically inert cyclic tetramers is observed in chloroform, while

MILJÖVETENSKAP Preliminärt schema ht 2020 Kurs: Grundkurs i Miljövetenskap MVEA01, HT2020 Kursansvarig: Katarina Hedlund Lokaler: Meddelas senare. Undervisningen kommer att ske både online och i universitetets lokaler. Litteratur: Kursbok: Environment- The Science behind the Stories, 5e upplagan,, global edition Withgott, Laposata, Förlag-Pearsons, ISBN 9781292063317. Motsvarande läroböcker i Milj

https://www.cec.lu.se/sv/sites/cec.lu.se.sv/files/kopia_av_schema_mvea01_2020_enl_fhm_direktiv.pdf - 2026-07-17

This study aims to investigate how consumers perceive variety in grocery stores and further how private brands have affected consumers’ perceptions of variety in grocery stores.The study focuses on the perceptions and attitudes towards variety and the impact of private brands on perceived variety. Hence, a qualitative rather than quantitative study has been used. Photo elicitation has been used in

The purpose of this research was to generate new insights of what causes consumers to recognise needs, how they search for information, and how they evaluate the alternatives during the pre-purchase phase of the customer journey. The selected topic is of relevance, as consumer behaviour has gone through significant changes in recent years as a result of developments in everyday technology. To fulf

A simple, rapid and environmentally friendly hollow-fibre liquid-phase microextraction (HF-LPME) technique was developed for the quantitative determination of polycyclic aromatic hydrocarbons (PAHs) in aqueous samples. GC-MS was then used as the method of analysis. The HF-LPME technique involves extraction of PAHs from a 20-mL sample containing 20 % acetonitrile as a modifier. The PAHs were extrac

Unsustainable use of natural resources has been the basis for economic growth since the industrial revolution. The linear model of extraction, processing, consumption and disposal has brought significant environmental consequences such as resource scarcity, pollution, biodiversity loss and climate change. The use of plastics is one example of unsustainable human behaviour. The use of them has offe

The removal and neglect of climate policies - a process known as climate policy dismantling (CPD) - both nationally and internationally, is a growing field of critical climate research that has significant implications for long-term climate adaptation globally. Climate activists on social media have the potential to be both influential and representative of wider CPD discourse, and so provide an i

The persistence of a low productive peasant sector in sub-Saharan Africa is one of the enigmas of development research. This study approaches the question from a historical perspective by analysing the paths of agrarian change in two contrasting cases in Malawi from the mid-1930s to the late 1970s. The cases - Thyolo and Mzimba districts - with their overt differences in terms of population densit