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Although significant improvements have been achieved for organic photovoltaic cells (OPVs), the top-performing devices still show power conversion efficiencies far behind those of commercialized solar cells. One of the main reasons is the large driving force required for separating electron-hole pairs. Here, we demonstrate an efficiency of 14.7% in the single-junction OPV by using a new polymer do

Aim: To describe the Swedish Neonatal Quality Register (SNQ) and to determine its completeness and agreement with other registers. Methods: SNQ collects data for infants admitted to neonatal units during the first four postnatal weeks. Completeness and registers’ agreement were determined cross-linking SNQ data with Swedish population registers (the Inpatient, Medical Birth and Cause of Death Regi

This paper investigates the detection of permittivity defects in a fabricated, known object, motivated by a desire to detect errors in additively manufactured objects that may affect their electromagnetic performance. We use scattering parameter sensitivities to reconstruct the relative permittivity of a generic 2D object from microwave scattering measurements and a known reference model. To find

The Polarization and Impedance Controlled Car (PICC) presents an innovative approach for demonstrating and teaching key principles of electromagnetic field theory, specifically polarization and impedance. Designed as an interactive learning tool, the PICC utilizes a radio-controlled car, NanoVNA, Raspberry Pi, and handheld antennas to visualize real-time effects of polarization and impedance. The

Time-interleaved ADCs are a key building block in mm-wave receivers, where the use of multi-GHz signal bandwidths requires high-performance wide-band data conversion. It is therefore necessary to explore the beamforming receiver system impact of different time-interleaved ADC parameters and limitations, such as number of interleaved channels, mismatches between channels, non-idealities of the subA

The evolutionary dynamics of diurnal Aletis moths (Lepidoptera: Geometridae: Sterrhinae) in the Afrotropics have been obscured by their allopatric distributions, significant inter- and intraspecific variation in adult and caterpillar phenotypes, and involvement in complex mimicry systems. Extensive phenotypic disparity, alongside conserved genital morphology and a lack of suitable material for gen

Examensarbetets titel: Åldersskillnader i användning av AI och självförtroende. Seminariedatum: 15 januari 2026 Ämne/kurs: FEKH38, Examensarbete i Business and Data Analytics, 15 ECTS Författare: Axel Zetterman, Emanuel Evers, William Pagel Handledare: Magnus Johansson Nyckelord: Artificiell intelligens (AI), Organisationer, Åldersskillnader, Förtroende, Dunning-Kruger-effekten. Forskningsfråga: HTitle: Age Differences in AI Usage and Confidence Seminar date: 15 January 2026 Course: FEKH38, Degree Project, Undergraduate level, Business Administration, Undergraduate level, 15 ECTS Authors: Axel Zetterman, Emanuel Evers, William Pagel Advisor: Magnus Johansson Keywords: Artificial intelligence (AI), Organizations, Age differences, Confidence, Dunning-Kruger effect. Research question: How doe

Rates of molecular, phenotypic, and lineage diversification typically scale negatively with time interval of measurement, raising longstanding questions about time-dependency of evolutionary processes. These patterns and their potential meaning have recently re-entered evolutionary discussions. In this Perspective, we revisit the general challenges in interpreting rate–time relationships. Much app

This article presents a theoretical framework for deriving simple analytical expressions for spurs resulting from second and third order nonlinearities in fractional-N phase locked loops (PLL). Furthermore, a previously proposed linearization technique where several sigma-delta modulators (SDMs) operate in parallel with relative time offsets between them, is further analyzed using the periodic non

IntroductionSport-related concussion (SRC) is a major health concern in contact sports. Linear head acceleration (LHA) and rotational head acceleration (RHA) are central biomechanical markers, and anticipatory neck muscle activation may mitigate these forces. Evidence on how anticipation influences head kinematics, and whether sex differences exist, remains limited. This study compared head accele

In this paper, we consider near-field localization and sensing with an extremely large aperture array under partial blockage of array antennas, where spherical wavefront and spatial non-stationarity are accounted for. We propose an Ising model to characterize the clustered sparsity feature of the blockage pattern, develop an algorithm based on alternating optimization for joint channel parameter e

SAL 243 Kandidatkurs GEOL01 Seminarier måndag 30 maj Tid Student Titel Handledare Exami nator 09:00- 09:15 Uppladdning av förmiddagens presentationer 09:15- 09:30 Elaine Rydberg Gummigranulat - Ett alternativt material. Helsingborgs kommun, Dan H Helena F 09:30- 09:45 Tina Liesirova Influences of sulfides on sediment nitrogen cycling processes J. Caffrey, S. Bonaglia, D. Conley Christina R 09:45-

https://www.geologi.lu.se/sites/geologi.lu.se/files/schema_presentationer_2016.pdf - 2026-05-09

Organisation of ice multiplication mechanisms among cloud-types simulated numerically Akash Deshmukh Department of Physical Geography & Ecosystem Sciences Lund University This document was compiled as a literature review to assess the current state of knowledge in the field of Cloud microphysics. This project focuses upon the secondary ice production and ice multiplication. It was conducted as a p

https://www.nateko.lu.se/sv/sites/nateko.lu.se.sv/files/akash_deshmukh_problem_analysis_first_year_seminar.pdf - 2026-05-09

There is broad consensus that good outcome measures are needed to distinguish interventions that are effective from those that are not. This task requires standardized, patient-centered measures that can be administered at a low cost. We developed a questionnaire to assess short- and long-term patient-relevant outcomes following knee injury, based on the WOMAC Osteoarthritis Index, a literature re