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We investigate hot carrier (HC) cooling in two-dimensional (2D) perovskite single crystals by applying two complementary ultrafast spectroscopy techniques - transient absorption (TA) and time-resolved two-photon photoemission (TR-2PPE) spectroscopies. TR-2PPE directly maps the hot electron distribution and its dynamics in the conduction band to the detected photoelectron distribution. While TR-2PP
Purpose We evaluated the feasibility of treating patients with locally advanced non-small cell lung cancer (NSCLC) with pencil beam scanned intensity modulated proton therapy (IMPT) in breath-hold. Methods and Materials Fifteen NSCLC patients who had previously received 66 Gy in 33 fractions with image guided photon radiation therapy were included in the present simulation study. In addition to a
Kursguide - Course Syllabus • • • • • • • Details of approval The syllabus was approved by Study programmes board, Faculty of Science on 2007- 06-14 to be valid from 2007-07-01, autumn semester 2007. General Information Language of instruction: Swedish Learning outcomes Knowledge and understanding To pass the course, the student should be able to: analyse the possibilities and the limitations to h
https://www.nateko.lu.se/sites/nateko.lu.se/files/ngen07_syllabus_english.pdf - 2026-07-25
Populärvetenskaplig sammanfattning: Om ett föremål skjuts på från två olika håll, då är det ofta svårt att veta i vilken riktning det slutligen kommer att röra sig. Ännu svårare blir det förstås, om storleken på de pådrivande krafterna är okänd. Vassen i sjön Vänern är nu i en liknande, nästan villrådig fas. Den kan besluta att växa och ta sig vidare ut i vattnet, eller att minska och på så vis håA new regulation of water levels in lake Vänern, causes reason to expect reed to spread over larger areas. However, geese have the opposite effect, that is, their grazing on reed is expected to reduce the reed distribution. Hence, grazing by geese on reed will be monitored to cover the larger variables that affect the reed distribution after the introduction of the new water regulation. A method f
Coordinated inventory management is not widely used among companies today. Not even modern companies, which should have resources and ability to always be in the forefront of technological developments, prioritizes models that in theory can provide substantial savings. This report illustrates that a slightly more advanced method to calculate the safety stock can increase the service accuracy and s
PowerPoint Presentation 1.6 s0.8 s c d 0.0 s b Mehran Sedrpooshan1,2, Calle Preger1,3, Claudiu Bulbucan1,2, Pau Ternero1,3, Simone Finizio4, Adam M. Burke1,3, Maria E. Messing1,2,3, Rasmus Westerström1,2 1. NanoLund, Lund University, Box 118, 221 00 Lund, Sweden, 2. Synchrotron Radiation Research, Lund University, Box 118, 221 00 Lund, Sweden, 3. Solid State Physics, Lund University, Box 118, 221
https://www.nano.lu.se/sites/nano.lu.se/files/2021-10/Sedrapoosan_Poster2021_MehranS.pdf - 2026-07-25
Studies of intermediate energy heavy ion reactions have revealed the existence of a number of reducibility and thermal scaling properties in nuclear multifragmentation. In particular, the probability of emitting n-fragments is reducible to the probability of emitting a single fragment through the binomial distribution. The resulting one-fragment probability shows a dependence on the thermal energy
Efforts to reduce greenhouse gas emissions, globalized markets with intense competition, and generally rising transportation costs emphasize the importance of achieving economically and environmentally sustainable distribution systems. Many international organizations predict that if no new measures are implemented, global carbon dioxide emissions from freight transport will increase to even highe
The main objective of this paper is to calculate the distribution of the tax burden across income levels in Spain between 1960 and 1990. The chosen period covers the final years of Franco’s dictatorship and the first ones of the present parliamentary regime, and is thus meant to explore how political change was reflected on taxation. Does transition entail a fiscal revolution? Here is one case stu
Start with a graph with a subset of vertices called {\it the border}. A particle released from the origin performs a random walk on the graph until it comes to the immediate neighbourhood of the border, at which point it joins this subset thus increasing the border by one point. Then a new particle is released from the origin and the process repeats until the origin becomes a part of the border it
A defect in proprioception has been found in selected patient groups that have an anterior cruciate ligament deficient knee at different times after the original injury. The time of development and the extent of such defects were studied longitudinally on 16 consecutive patients. During the first year after a primary knee injury, which included a complete rupture of the anterior cruciate ligament,
The HIV-1 epidemic in West Africa has been dominated by subtype A and the recombinant form CRF02_AG. Little is known about the origins and the evolutionary history of HIV-1 in this region. We employed Maximum likelihood and Bayesian methods in combination with temporal and spatial information to reconstruct the HIV-1 subtype distribution, demographic history and migration patterns over time in Gui
In an influential paper Pesaran (A Simple Panel Unit Root Test in Presence of Cross-Section Dependence, Journal of Applied Econometrics 22, 265–312, 2007) proposes two unit root tests for panels with a common factor structure. These are the CADF and CIPS test statistics, which are amongst the most popular test statistics in the literature. One feature of these statistics is that their limiting dis
This thesis aims to examine gender norms in parental leave praxes and attitudes towards earmarked paternity leave. The starting point is a forthcoming EU directive on work-life balance for parents and carers that will implement earmarked paternity leave in Denmark by 2022. The empirical data consists of nine semi-structured interviews with six new, first-time parents (three couples). The study set
TV-on-Demand services have become one of the most popular Internet applications that continuously attracts high user interest. With rapidly increasing user demands, the existing network conditions may not be able to ensure a low start-up delay of video playback. Prefetching has been broadly investigated to cope with the start-up latency problem, which is also known as user perceived latency. In th
Popular Abstract in English Imagine you are sunbathing on a sandy beach, while reading the latest Dan Brown book. Once the book is finished, you look at the waves and notice that in one place, they decelerate and become large. Excited by your reading, you imagine that beneath those larger waves there is a ship containing a treasure in it (most likely sunk by the Illuminati during World War II). BuThis thesis describes how photoemission stimulated by an attosecond pulse train (APT) can be used to extract information on electron correlation in simple quantum systems such as atoms. The emission of the electron by an APT induces a reorganization of the electrons remaining in the ion core. This reorganization causes a change in the trajectory of the emitted electron. An infrared (IR) field is u
Computer simulation and modelling was used to simulate a real time environment in preparative chromatography to evaluate the performance of three different strategies for pooling control for different levels of robustness. The pooling problem was based around a separation case where three different insulin species were to be separated while disturbances to the modulators potassium chloride, ethano
En av behandlingsmetoderna mot tumörer i levern på Lunds Universitetssjukhus är SIRT som står för ”Selective Internal RadioTherapy” det vill säga en intern radioterapeutisk behandling, i detta fall specifikt för levern. Behandlingen är cirka tio år gammal och i Lund har den utförts sedan december 2010. Under våren 2012 behandlades tre patienter med SIRT då de inte kan få sina cancertumörer i leverIntroduction: Cancer treatment is a process with continuous development. The most common treatment, within the field of radiation physics, is external radiation therapy, whereas one of the least common methods is Selective Internal RadioTherapy (SIRT). SIRT is a rather novel method for treating liver carcinoma. Microspheres containing 90Y are infused directly into the liver, via the hepatic artery
Soil erosion vulnerability and extreme rainfall characteristics over the Mediterranean semi-arid region of Tunisia are crucial input for estimation of siltation rate in artificial reservoirs. A comprehensive high-resolution database on erosive rainfall, together with siltation records for 28 small reservoirs, were analysed for this region, the Tunisian Dorsal (the easternmost part of the Atlas Mou
Semiconductor nanostructure based devices provide new opportunities for contributing to a sustainable energy usage. This includes harvesting of energy (solar cells) and saving of energy, e.g. in lighting (light-emitting diodes, LEDs) and transfer of energy (power devices). However, development and improvement of nanostructure devices requires thorough characterization and understanding on a singleSemiconductor nanostructure based devices provide new opportunities for contributing to a sustainable energy usage. This includes harvesting of energy (solar cells) and saving of energy, e.g. in lighting (light-emitting diodes, LEDs) and transfer of energy (power devices). However, development and improvement of nanostructure devices requires thorough characterization and understanding on a single
