University of Latvia

Multilayer Transparent Electrodes: Design, Fabrication, Performance, and Applications

Indium tin oxide (ITO) is the benchmark transparent conductor for displays and for electrochemical and optical sensors, but its brittleness, cost, and indium supply risk limit its use in flexible, large-area devices. Oxide/metal/oxide multilayers, namely transparent conducting ox...

An Open Data Approach for Comparing CO2 Sorbents

Abstract The rapid growth of research on CO2 capture has led to the development of hundreds of novel sorbents. Their direct comparison is challenging because the reported metrics, testing conditions, and data formats vary across studies. This study examines developments reported...

Adsorption and Photocatalytic Activity of Covalent Organic Frameworks for Environmental Remediation: A Review of Density Functional Theory Studies

The contamination of water resources by heavy metals, radionuclides, and organic pollutants demands efficient materials for water treatment. Covalent organic frameworks (COFs) are promising candidates owing to their tunable porosity and functionalizable frameworks. This review ex...

Lysine-Based Amphiphiles with Pyrrole, Furan and Thiophene Linkers

The development of efficient cationic amphiphiles remains an important area in the design of nonviral systems for nucleic acid delivery. In this study, we report the synthesis of three lysine-containing lipid-like amphiphiles incorporating pyrrole, furan, and thiophene as five-me...

Airflows redefine the cost of aerial transport in the wild

Fuel economy matters to both animals and machines, as the cost of transport can determine where, when, and how far locomotion is possible. However, established estimates of these values for animal flight come from laboratories and treat the atmosphere as constant, even though fre...

Do AI and Lexicon-Based ESG Scores Converge? Evidence from IPO Prospectuses in an Emerging Market

The growing use of artificial intelligence (AI) to evaluate Environmental, Social, Governance (ESG) scoring from corporate disclosures raises questions about alignment with conventional lexicon-based scores. Such alignment can be problematic as a lexicon-based approach quantifies...

Industrial Symbiosis Readiness in the Western Balkans: Insights from Swedish and Latvian Experience for Albania

Industrial symbiosis (IS) is increasingly considered a practical pathway for advancing the circular economy, improving resource efficiency, and supporting sustainable industrial development. While IS has been widely discussed and applied in several European Union contexts, its de...

Residual Solvent Effects on the Mechanical and Triboelectric Properties of Solution-Processed Polymer Films

Abstract Residual solvents are an often-overlooked factor that may influence the triboelectric performance of solution-processed polymer films. Here, the effect of solvent evaporation dynamics on triboelectric charging was investigated using poly(vinylidene fluoride) (PVDF)/N,N-d...

Electronic appendix A to "Mineralogical and geochemical characteristics and the genesis of the Paleoproterozoic Staicele and Gārsene Iron Ore Deposits of Latvia"

Electronic appendix A to "Mineralogical and geochemical characteristics and the genesis of the Paleoproterozoic Staicele and Gārsene Iron Ore Deposits of Latvia"; Vorobjovs, D., Stinkulis, Ģ., Bērtiņš, M., Vīksna, A., Meija, R., Brangule, A. Bulletin of the Geological Society of...

Electronic appendix A to "Mineralogical and geochemical characteristics and the genesis of the Paleoproterozoic Staicele and Gārsene Iron Ore Deposits of Latvia"

Electronic appendix A to "Mineralogical and geochemical characteristics and the genesis of the Paleoproterozoic Staicele and Gārsene Iron Ore Deposits of Latvia"; Vorobjovs, D., Stinkulis, Ģ., Bērtiņš, M., Vīksna, A., Meija, R., Brangule, A. Bulletin of the Geological Society of...

Business roles in 1.5 °C transitions: a stakeholder-informed scenario analysis

Limiting global warming to 1.5 °C requires profound transformations of production and consumption systems, yet the role of businesses in enabling such transitions remains insufficiently addressed in scenario-based sustainability research. Existing scenarios often conceptualize fi...

Specific Responses of Natural Enemies to Ips acuminatus Density in Endemic and Post-Outbreak Populations in Scots Pine Stands: A Case Study

Outbreaks of the sharp-toothed bark beetle, Ips acuminatus, have become increasingly frequent across Europe, yet little is known about how natural enemy communities vary between bark beetle population phases. This study compared the composition, diversity, emergence patterns, and...

Extensive Cochlear Otosclerosis: CT-MRI Correlation and the Diagnostic Value of Contrast Enhancement

Otosclerosis is a chronic disorder of the otic capsule. It is characterized by abnormal bone remodeling, which may extend beyond the fenestral region and involve the cochlea and other structures of the bony labyrinth. There are two main types of otosclerosis—retrofenestral (cochl...

Observations of mesospheric clouds in Latvia in 1957–1983

Abstract. Until the 20th century In the 1980s, there were very few instruments for studying the upper layers of the atmosphere. Therefore, great importance was attached for observation of mesospheric clouds (MC) at an altitudes of 75–85 km., including also for amateur observation...

Exploratory Analysis of Hazard Perception in Hazardous Driving Situations: A Virtual Reality Eye-Tracking Study

Driving is a task that demands a range of cognitive processes, both simple and complex. Detecting potential hazards is crucial to reducing traffic accidents. This study examined drivers’ perception of hazardous situations in virtual reality (VR). Fifty-two participants completed...

GPR-derived ice thickness of the temperate Hintereisferner glacier (Austrian Alps): evaluation of thickness models

Abstract. Alpine glaciers are retreating rapidly and have a potential for near complete ice loss at the end of the 21st century thus accurate glacier evolution models are crucial for predicting the magnitude and rate of future glacier changes. Without reliable ice thickness asses...

Shiny by Design: Establishing Diagnostic Criteria for Intentional Burnishing on Prehistoric Bone Artifacts

The identification of intentional burnishing on prehistoric osseous artifacts remains a persistent methodological challenge. Bone surfaces are highly reactive and readily record microwear traces but are susceptible to taphonomic alteration. This study investigates how the use of...

Truthful visualizations for mass spectrometry imaging enable high-spatial-resolution interactive m/z mapping and exploration

Mass spectrometry imaging (MSI) produces high-dimensional molecular data, but practical interpretation remains limited by visualizations that incompletely preserve global structure. We present MSI-VISUAL, an open-source framework for interactive MSI analysis that integrates truth...

Distinctive Climate Change Features in Latvia and Their Implications for Freshwater Ecosystems

Climate change is increasingly affecting freshwater ecosystems across Northern Europe, yet the responses of inland waters differ according to regional climatic and environmental conditions. Latvia, located within the boreo-nemoral transition zone, provides an important case for u...

Paramagnetic defects and luminescence in praseodymium-activated alkaline earth pyrophosphates

Establishing defect-property systematics in complex materials remains an elusive challenge, requiring complementary spectroscopic techniques and correlated investigations across chemically related host lattices. This study presents a systematic overview of defect-mediated charge...