Search results

The enzyme beta-galactosidase was purified from a cold-adapted organism isolated from Antarctica. The organism was identified as a psychrotrophic Pseudoalteromonas sp. The enzyme was purified with high yields by a rapid purification scheme involving extraction in an aqueous two-phase system followed by hydrophobic interaction chromatography and ultrafiltration. The beta-galactosidase was optimally

Bacterial growth after freezing/thawing was studied in two soils with a history of annual freezing/thawing events. Soil samples were frozen for 1 week at −3 °C or −18 °C, thawed at +4 °C, and respiration and bacterial growth (estimated using leucine incorporation) were compared with reference soils kept at +4 °C. There were no major differences between soils. A respiration pulse, peaking within 9

Comparisons of the strength and form of phenotypic selection among groups provide a powerful approach for testing adaptive hypotheses. A central and largely unaddressed issue is how fitness and phenotypes are standardized in such studies; standardization across or within groups can qualitatively change conclusions whenever mean fitness differs between groups. We briefly reviewed recent relevant li

Climate change poses an unprecedented challenge to agriculture. While growers have always struggled with year-to-year variation in climate – early rains or unusually hot summers – climate change provides a major directional shift in mean climate. Across the globe, growing regions are warming and plants are shifting in both time and space. Current and future shifts pose a major challenge to researc

Airspace dimension assessment with nanoparticles (AiDA) is a novel method to measure distal airspace radius non-invasively. In this study, AiDA radii were measured in 618 individuals from the population-based Swedish CArdiopulmonary BioImaging Study, SCAPIS. Subjects with emphysema detected by computed tomography were compared to non-emphysematous subjects. The 47 individuals with mainly mild-to-m

Rapporten sammanfattar fjärilsinventeringar utförda 2020 inom Biogeografisk uppföljning som drivs av Naturvårdsverket. I fjällområdet kunde totalt 49 ytor inventeras. Sammanlagt noterades 151 högnordiska blåvingar på 22 inventerade ytor, 53 dvärgpärlemorfjärilar på 25 ytor och minst 1 fjällsilversmygare noterades på 3 inventerade ytor. Svartfläckig blåvinge observerades på 15 av 50 inventerade lok

For the past 30 to 40 years, regulation of the environment has been governed by Environmental Protection Agencies worldwide. During this time we have learned that regulations have significant costs, not just benefits, and that analysis of the cost and benefit of proposed rules is an indispensable component of responsible regulation. Despite present-day recognition of the importance of cost benefit

Abstract. It is often claimed that general reduction, or diffuse loss, of perimetric sensitivity is an early sign of glaucoma. Our clinical experience and the results of a few other studies led us to believe otherwise. To investigate factors associated with diffuse field loss we reviewed 4222 Humphrey 30–2 threshold tests from 1582 eyes of 862 patients followed at our department. Most of these pat

A mobile stroke unit (MSU) is an ambulance, where stroke patients can be diagnosed and treated. Recently, placement of MSUs has been studied focusing on either maximum population coverage or equal service for all patients, termed efficiency and equity, respectively. In this study, we propose an unconstrained optimization model for the placement of MSUs, designed to introduce a tradeoff between eff

Rapporten sammanfattar fjärilsinventeringar utförda 2022 inom Biogeografisk uppföljning som drivs av Naturvårdsverket. I fjällområdet kunde totalt 35 ytor inventeras. Sammanlagt noterades 38 högnordiska blåvingar på 12 av 16 inventerade ytor, 34 dvärgpärlemorfjärilar på 14 av 17 ytor och 3 fjällsilversmygare noterades på 2 av 3 inventerade ytor. Svartfläckig blåvinge observerades på 23 av 56 inven

Soil aggregate stability has been asserted as an indicator of soil quality. Earthworms are essential for the stability of soil aggregates due to their activities, including burrowing and organic matter decomposition. In this study, we focused on how differences in plant litter quality influences earthworm abundance and composition and, subsequently, macroaggregate stability in an agroforestry ecos

Background: Many critically ill patients report a change in their health-related quality of life after intensive care unit (ICU) discharge. Patients who experience delirium during their ICU stay are perceived as a fragile group of ICU survivors, and the ‘quality of life’ phenomenon needs to be studied among these patients. Aim: To explore everyday life experiences of critically ill patients with d

Creativity is a defining feature of contemporary work life. Who has not taken part in brainstorming sessions, read glossy pamphlets about innovation and creativity as important cornerstones of a new business strategy, or been made aware of the importance of creative skills for one´s career? But what does it mean to be creative in and as an organization?Organizing Creativity provides an answer to t

Syftet med uppsatsen är att utreda vem som skall bära ansvaret för sk utvecklingsfel vid småhusbyggande. Kan beställaren/köparen i alla lägen för-vänta sig ett felfritt hus? Utredningen är baserad på traditionell rättsdogmatisk metod. Bakgrund till uppsatsen är det uppmärksammade Myresjöhusfallet, T 99-12, som gällde felansvaret för ett antal småhus som byggts med sk enstegstätad fasad. ByggmetodeThe purpose of this paper is to investigate the liability for developmental faults in connection with single house construction. Background to the paper is the Myresjöhus Case, T 99-12, that has attracted some public attention. The case concerned the liability for a number of single houses that were built with the construction method known as External thermal insulation composite system walls. The

Studier har visat att tvåfasflöde med gas och vätska kan öka ett membrans flux. I detta examensarbete har två vätskor, kiseldioxidlösning och hemicellulosalösning, luftats med olika metoder, och luftningens inverkan på fluxet har studerats. När vätskor med hög viskositet ska membranfiltreras är ofta fluxet lågt vilket gör att filtreringen tar lång tid och att det därför behövs stora membrananläggA new oxygen barrier film that is made of arabinoxylan has been developed by the company Xylophane. Arabinoxylan is available among other things in wheat bran. But a problem with the method of extracting the arabinoxylan is that after an alkali extraction is ultrafiltration used to remove impurities and the flux during this is quite low. In this project is it investigated if gas sparging with air

Examensarbetets titel: Mechanisms to enable operational efficiencies in a virtual context Seminariedatum: 1 Juni 2023 Ämne/kurs: FEKH99, Examensarbete i Entreprenörskap och Innovation, 15 högskolepoäng Författare: Morgan Bryer, Nathan Nilsson, Anton Palm ́en, Handledare: Ziad El-Awad, Lunds universitet Nyckelord: Virtuella kök, Operationella mekanismer, Operationell effektivitet, Business Model CTitle: Mechanisms to enable operational efficiencies in a virtual context Seminar date: 1st of June 2023 Course: FEKH99, Bachelor Degree Project in Entrepreneurship and Innovation, 15 University Credit Points Authors: Morgan Bryer, Nathan Nilsson, Anton Palmen ´ Supervisor: Ziad El-Awad, Lund University Keywords: Virtual kitchens, Operational Mechanisms, Operational Efficiency, Business Model Canv

Arbetet utreder faderskapspresumtionen och närliggande rättsområden. Syftet med detta är att granska presumtionen och utvärdera om denna är att anse fyll-ler sitt syfte. Detta görs genom att analysera såväl hur det sett ut historiskt som att konstatera hur den gällande rätten ser ut. Detta har även ställts emot de intressen som finns i samhället, hos föräldrarna samt principen om barnets bästa. HThe project audits the presumption of fatherhood in the Swedish legal system and related legal areas. This is done to evaluate if the presumption is fulfilling its purpose. To achieve this a thorough analysis of the subject is conducted. The history of the legal area is explored, and the applicable law is reviewed. The interests in of the different involved parties such as the parents and the publ