Search results

Two-dimensional materials can be strongly influenced by their surroundings. A dielectric environment screens and reduces the Coulomb interaction between electrons in the two-dimensional material. Since in Mott materials the Coulomb interaction is responsible for the insulating state, manipulating the dielectric screening provides direct control over Mottness. Our many-body calculations reveal the

This paper presents a radio frequency front-end (RFFE) comprised of a cascode low-noise amplifier (LNA) and a reconfigurable Q-enhanced filter. Employing a dual-resonant input matching network, the LNA attains a significantly wide bandwidth. The filter consists of four Q-enhanced resonators enabling three modes of operation: 1) dual-band filter, 2) single band-pass filter (BPF) along with a tunabl

The process of population ageing that has been occurring in Sweden can be expected to continue during the coming decades, the population pyramid will become increasingly rectangular, and possibly even demonstrating a shrinking base. This will lead to increasing challenges in terms of financing pensions, elderly care and healtcare. These problems will continue for at least 30 years with no demograp

Utredningsrapport - Sammanslagning av geologi, INES och CEC Page 1 of 40 Reg. No. STYR 2022/1317 Date 2022-11-14 Postal address Kansli N, Box 118, 221 00 Lund Visiting address Astronomy building, Sölvegatan 27 Telephone 046-222 7182, (switch) 046-222 00 00 E-mail: Tobias.Nilsson@science.lu.se Investigation of how research in the Department of Geology, the Department of Physical Geography and Ecosy

https://www.science.lu.se/internal/sites/science.lu.se.internal/files/2023-01/external-investigation-joint-department.pdf - 2026-05-07

1 Schema. Icke-industriella försörjningssätt HEK A12:3 HT 2017 Icke-industriella försörjningssätt Kursansvarig: Andreas Roos (AR) andreas.roos@hek.lu.se Övrig lärare: Siri Kjellberg (SMK) siri_m.kjellberg@hek.lu.se eller siri.kjellberg@gmail.com. 20/3 15-16 *Introduktion AR, SMK Flygeln 21/3 13-15 Energirevolutioner i historien 1: Från jägare och samlare till jordbruk Litteratur: Smil 2017: Kapite

https://www.keg.lu.se/sites/keg.lu.se/files/heka12.3_preliminart_schema_vt2018_icke-industriella_forsorjningssatt.pdf - 2026-05-07

1 Kvalitetsgranskning och uppföljning av utbildning vid Samhällsvetenskapliga fakulteten Projektansvarig: Prodekan, Lena Eskilsson Projektledare: Lena Örnberg Projekttid: 2018-01-18 – 2019-01-17 Budget: Motsvarande 30% arbetstid, samt kostnader för studiebesök och ev piloter -------------------------------------------------- Underskrift av projektledare SYFTE Ta fram ett kvalitetssäkringssystem fö

https://www.sam.lu.se/internt/sites/sam.lu.se.internt/files/projektplan-kvalitetsgranskning-s-fak-beslut.pdf - 2026-05-07

Under början av förra seklet skedde en formlig reception av tysk processrätt genom Ernst Kallenbergs verk Svensk Civilprocessrätt i två band. Således kom läran om processföremålet genom 1942 års processreform att läggas till grund för utformningen av den svenska rättegångsbalken (RB). Läran om processföremålet innebär att saken är den omtvistade rättigheten i det bakom-liggande rättsförhållande soAt the turn of the last century, a formal reception of German procedural law took place through Ernst Kallenberg’s work ’Svensk Civilprocessrätt’ in two volumes. Thereby, the German doctrine on the essence of the claim formed the basis for the Swedish Code of Procedure, rättegångsbalken (RB), through the procedural reform of 1942. The doctrine on the essence of the claim holds that the matter cont

This letter proposes a novel wideband, single-layer monopolar antenna with high selectivity and enhanced pattern stability across the operating band. Building upon a conventional circular patch antenna, the rejection levels of the upper and lower sidebands are carefully analyzed, designed, and optimized to achieve the desired performance. To further improve performance, a shorting-via-loaded ring

5G antennas for vehicular connectivity are often mounted on the car roof to optimize signal reception. The trend of replacing metal roof with glass in modern cars opens an opportunity for embedding the 5G antennas inside the glass roof. In this work, we compare the channel gains of reference dipole, and loop antennas positioned at the roof center. Then, by considering the requirements of glass int

AIMS/HYPOTHESIS: The incidence of type 1 diabetes increased during the pandemic in various countries. SARS-CoV-2 infections may trigger the development of type 1 diabetes, but the evidence is inconclusive. This study aimed to assess trends in type 1 diabetes incidence between 2007 and 2023, and to quantify the association between SARS-CoV-2 infections and the risk for developing type 1 diabetes.ME

The remarkable advances in AI and Large Language Models (LLMs) have enabled machines to write code, accelerating the growth of software systems. However, the bottleneck in software development is not writing code but understanding it; program understanding is the dominant activity, consuming approximately 70% of developers' time. This implies that improving existing code to make it easier to under

Full-duplex (FD) communication improves spectral efficiency by allowing simultaneous transmission and reception on the same frequency band. This paper analyzes a two-tier network consisting of macrocells and picocells, where base stations (BSs) operate in FD mode while users operate in half-duplex (HD) mode. However, interference remains a major challenge in these systems, significantly impacting

Massive multiple input, multiple output (MIMO) systems are crucial for enhancing spectral efficiency and link reliability in next-generation wireless communications. However, high Peak-to-Average Power Ratio (PAPR) remains a significant challenge, leading to power inefficiencies and signal distortion. This paper presents a low complexity method for PAPR reduction using hard clipping tailored for f

Despite a few reports of photoluminescent and strongly photo-oxidizing transition metal complexes with a d5 electronic configuration, the photophysics and photochemistry of this class of transition metal complexes have largely remained unexplored. Recent investigations of earth-abundant iron(III) N-heterocyclic carbene (NHC) complexes have demonstrated promising photophysical and photochemical pro

Background: Distal cholangiocarcinoma is an aggressive malignancy with a dismal prognosis. Diagnostic and prognostic biomarkers for distal cholangiocarcinoma are lacking. The aim of the present study was to identify differentially expressed proteins between distal cholangiocarcinoma and normal bile duct samples. Methods: A workflow utilizing discovery mass spectrometry and verification by parallel

The rise of 5G technology leads to a boom in the demand for widely available wireless connectivity while requiring telecommunication networks to improve spectral efficiency and deploy dynamic spectrum sharing (DSS) and carrier aggregation (CA). This imposes more stringent intermodulation test scenarios and blocking requirements on RF transceivers. In addition, they are required to be programmable

The advances in highly automated and autonomous transportation systems over the last decade have generated great interest in topics in the safe navigation of land vehicles. With distributed control strategies employed in the majority of applications of autonomous vehicles, such as traffic and formation control, the much-required resilience takes the form of fault-tolerance with respect to informat

Robotic systems for manipulation tasks are increasingly expected to be easy to configure for new tasks. While in the past, robot programs were often written statically and tuned manually, the current, faster transition times call for robust, modular and interpretable solutions that also allow a robotic system to learn how to perform a task. We propose the method Behavior-based Bayesian Optimizatio