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The synthesis of high-value fuels and plastics starting from small hydrocarbon molecules plays a central role in the current transition towards renewable energy. However, the detailed mechanisms driving the growth of hydrocarbon chains remain to a large extent unknown. Here we investigated the formation of hydrocarbon chains resulting from acetylene polymerization on a Ni(111) model catalyst surfa

We derive and validate an analytical model that describes the migration of Raman scattered photons in two-layer diffusive media, based on the diffusion equation in the time domain. The model is derived under a heuristic approximation that background optical properties are identical on the excitation and Raman emission wavelengths. Methods for the reconstruction of two-layer Raman spectra have been

This study examined the relationship between physical activity, body image, and subjective well-being among Swedish adolescents over time. Surveying 2308 students, with 137 providing longitudinal data, we conducted a multivariate logistic regression analysis. No significant correlations were found between physical activity (p =.268), body functioning (p =.567), or body appearance (p =.075) at age

Grounded theory method (GTM), which has been increasingly used in the information systems (IS) field, is a contested method. GTM has even been viewed as a family of methods by Antony Bryant and Kathy Charmaz in the respected 'Handbook of Grounded Theory'. One debate that is of particular relevance is about the metaphor of 'emergence' and the most basic rule of GTM - that researchers should not for

Grounded theory method (GTM) (Glaser and Strauss, 1967; Strauss and Corbin, 1990; Charmaz, 2006) is characterized by the continuous interplay between the collection and analysis of data in order to generate theory that is firmly grounded in empirical phenomena (Glaser and Strauss, 1967; Strauss and Corbin, 1998). The method is now an accepted research approach in the information systems (IS) disci

Cosmogenic radionuclides (e.g., 10Be) from ice cores are a powerful tool for solar reconstructions back in time. However, superimposed on the solar signal, other factors like weather/climate and volcanic influences on 10Be can complicate the interpretation of 10Be data. A comprehensive study of 10Be records over the recent period, when atmospheric 10Be production and meteorological conditions are

Insulin-like growth factor-1 (IGF-1) is essential for normal brain development and regulates processesof vascular maturation. The pathogenesis of intraventricular hemorrhage (IVH) relates to the fragilityof the immature capillaries in the germinal matrix, and its inability to resist fluctuations in cerebralblood flow. In this work, using different experimental setups, we aimed to (i) establish an

This article examines two of the most canonical plays in all of Scandinavian and European modern drama – Henrik Ibsen’s Hedda Gabler (1890) and August Strindberg’s A Dream Play (1902) – through the prism of the history of knowledge. The primary claim of the article is that these two plays are paradigmatic literary representations and critiques of one of the main historical processes pertaining to

Most often, the laminar burning velocity (SL) of ammonia was measured in mixtures diluted by nitrogen bearing in mind its potential use as an alternative carbon-free fuel. Replacing the diluent with argon can increase the flame temperature and thus provide additional targets for validating pertinent detailed kinetic models. The SL data for ammonia + oxygen + argon mixtures are scarce; therefore, i

The Qinghai-Tibet Plateau (QTP) serves as the source of many large rivers in Asia, and also serves as a natural habitat for rare wildlife and a genetic reservoir for plateau species. The exceptional ecological environment of the QTP has fostered diverse fish species. However, due to climate change and human activities, fish species in this area are facing serious threats, while large spatial scale

Background: Peritonitis is a major cause of morbidity in peritoneal dialysis (PD) and an independent risk factor for elevated all-cause mortality. The aims of this study were to report the incidence, trend, aetiology, and antimicrobial susceptibility of PD-associated peritonitis and catheter-related infections in South Sweden between 2011–2020.Methods: This population-based observational cohort st

Understanding how the design of high-pressure homogenizer valves influence pressure losses in the device is of general interest for performance optimizing, and of special importance for developing correlations for predicting gap heights and gap velocities. The traditionally used correlation is from 1975 and based on a limited experimental dataset on gaps that are longer and often of lower capacity

Colour polymorphism can be maintained by colour morph-specific benefits across environmental conditions. Currently, the amount and the duration of snow cover during winter decrease especially in northern latitudes, which can alter the potential for camouflage of animals with light and dark morphs. Tawny owls, Strix aluco, are colour-polymorphic avian predators with dark (brown) and light (grey) co

Characterising the interaction between cationic ionisable lipids (CIL) and nucleic acids (NAs) is key to understanding the process of RNA lipid nanoparticle (LNP) formation and release of NAs from LNPs. Here, we have used different surface techniques to reveal the effect of pH and NA type on the interaction with a model system of DOPC and the CIL DLin-MC3-DMA (MC3). At only 5% MC3, differences in

Environments contain various forms of noise that can interfere with the ability of animal sensory systems to perceive information. One ubiquitous type of visual noise in shallow aquatic habitats is caustic flicker (or caustics), consisting of dynamically moving light patterns caused by the refraction of light when passing through the water's rippling surface. While some teleost fish avoid environm

The type 1 diabetes community is coalescing around the benefits and advantages of early screening for disease risk. To be accepted by healthcare providers, regulatory authorities and payers, screening programmes need to show that the testing variables allow accurate risk prediction and that individualised risk-informed monitoring plans are established, as well as operational feasibility, cost-effe

Background: Advances in treatment of childhood malignancies have improved overall cure rates to 80%. Nevertheless, cancer is still the most common cause of childhood mortality in Sweden. The prognosis is particularly poor for relapse of high-risk malignancies. In the international INFORM registry, tumor tissue from patients with relapsed, refractory, or progressive pediatric cancer as well as from