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Final results from the DELPHI Collaboration on the lifetime of B+ and B-0 mesons and the mean b-hadron lifetime, are presented using the data collected at the Z(0) peak in 1994 and 1995. Elaborate, inclusive, secondary vertexing methods have been employed to ensure a b-hadron reconstruction with good efficiency. To separate samples of B+ and B-0 mesons, high performance neural network techniques a
One of the most important factors when low energy houses are built is to have good heat recovery on the ventilation system. However, standard ventilation units use a considerable amount of electricity. This article discusses the consequences on a system level of using hybrid ventilation with heat recovery. The simulation program TRNSYS was used in order to investigate a ventilation system with hea
In this paper the heat losses from a novel type of district heating culvert, termed Elgotherm, is investigated and compared to conventional culvert. The insulation material is made of expanded polystyrene and the culvert consists Of four cross-linked polyethylene pipes. The heat losses are calculated using both a time dependent and a stationary finite element model. Measured data from an existing
A simplified interaction potential for protein folding studies at the atomic level is discussed and tested on a set of peptides with; 20 residues each. The test set contains both alpha-helical ( Trp cage, F-s) and beta-sheet ( GB1p, GB1m2, GB1m3, Betanova, LLM) peptides. The model, which is entirely sequence-based, is able to fold these different peptides for one and the same choice of model param
A rising problem within electronics today is that, since the frequencies have increased dramatically, it is now very difficult to measure signals. If a traditional probe is used, then the direct contact will destroy the signal. The general idea behind this master thesis project is to make use of the crosstalk between transmission lines to create non contact test points. This thesis aims to evaluat
This thesis begins by briefly discussing translation in general, identifying some of the problems involved in the linguistic activity. Then it seeks to explain what is involved in translation relating to film and television, i.e. subtitling. Finally, a comparison will be made between the Spanish speech in the Mexican film, Como agua para chocolate - directed by Alfonso Arau in 1992 and based on hi
This study evaluate the emerging international rice market by looking at supply and demand, price formation and development, and the extensive protection provided for rice on both national, bilateral and multilateral levels. The findings of this study are that rice is seen as a political good in many Asian countries due to its big impact on economy, society and political stability. Rice production
The aim of this Master's thesis is to study what place public libraries have in local politics, particularly from the point of view of the politicians. To answer this, I have interviewed politicians, participated as a silent observer of a public debate, and studied articles on library politics in newspapers and other press. The results show that politicians in general have a positive view of l
The influence of damage on the load-carrying capacity of thin-walled steel columns with channel sections is investigated. The axial load-carrying capacity is evaluated for different profiles, and different damage magnitudes are dealt with. The profiles selected for the analysis are commonly used as upright members in rack and shelving systems in industry. The type of damage corresponds primarily t
At a large tunnel project in Southern Sweden a number of geoelectrical and IP imaging were carried out. The tunnel is drilled through a horst with a complex geology which includes fractures, high water content and weathered zones. The measurements where carried out to compile a geologic model to use in the further planning of the project. The resistivity and IP complements each other very well sin
A convenient mapping and an efficient algorithm for solving scheduling problems within the neural network paradigm is presented. It is based on a reduced encoding scheme and a mean field annealing prescription which was recently successfully applied to TSP.Most scheduling problems are characterized by a set of hard and soft constraints. The prime target of this work is the hard constraints. In thi
The lifetime of the 3s3p1P term in Mg-like S V has been determined by beam-foil spectroscopy in combination with detailed analyses of cascading processes by means of the ANDC technique. One of the most important cascade transitions was found to be seriously blended by a strong S VII transition. An earlier proposed method for appling the ANDC formalism to correct for blending has been tested for th
This chapter focuses on the dominantly gendered house-help in India: the cooks, cleaners, and maids during the pandemic-triggered lockdowns in Delhi and its metropolitan areas. Even if we are scared to enter people's homes, we have to come out to work to sustain our lives. The case studies of these three women point to the precarity and 'unrepresentability' which turn the previously invisible figu
Hur mycket vatten behöver vi dricka för att vi ska hålla oss friska? Vilken effekt får olika dieter på ämnesomsättningen? Studier av olika hormoner i kroppen ger diabetesforskare nya svar. Förhoppningen är att utveckla individanpassade behandlingar och kostråd som kan minska risken att utveckla fetma och sjukdomar som typ 2-diabetes. Hormonsystemet samarbetar med nervsystemet och styr mycket av de
Hur mycket vatten behöver vi dricka för att vi ska hålla oss friska? Vilken effekt får olika dieter på ämnesomsättningen? Studier av olika hormoner i kroppen ger diabetesforskare nya svar. Förhoppningen är att utveckla individanpassade behandlingar och kostråd som kan minska risken att utveckla fetma och sjukdomar som typ 2-diabetes. Hormonsystemet samarbetar med nervsystemet och styr mycket av de
https://www.medicin.lu.se/artikel/okad-kunskap-om-hormonsystemet-kan-ge-farre-fall-av-typ-2-diabetes-och-fetma - 2026-05-25
Objective: The aim of this study was to evaluate the utilization and impact of emergency computed tomography (CT) on the management of renal colic, focusing on treatment decisions, time to treatment and the subsequent need for additional emergency department (ED) visits.Materials and methods: Retrospective analysis of patient visits to the ED in Helsingborg with a diagnosis of urolithiasis (ICD co
A separation between the academic subjects statistics and mathematical statistics has existed in Sweden almost as long as there have been statistics professors. The same distinction has not been maintained in other countries. Why has it been kept for so long in Sweden, and what consequences may it have had?In May 2015, it was 100 years since Mathematical Statistics was formally established as an a
I en ny studie belyser forskare vid Lunds universitet COP-mötenas historia. Länder som deltar i klimatförhandlingarna delas in i fyra grupper; radikaler, opportunister, hycklare och undvikare. Studien visar att rika länder gynnas och fattiga missgynnas. Därmed riktas strålkastarljuset mot klimatkonferensens ambition om klimaträttvisa. Varje år möts världens länder på FN:s globala klimatkonferens f
https://www.sam.lu.se/artikel/fns-klimatmoten-organiseras-pa-ett-satt-som-gynnar-rikare-storre-lander - 2026-05-25
