Sökresultat

The concentrations of gas-phase potassium hydroxide (KOH), potassium chloride (KCl) and atomic potassium (K(g)) were quantitatively measured from the near-surface to downstream area of burning pinewood pellets by a newly developed photofragmentation tunable diode laser absorption spectroscopy (PF-TDLAS) technique to reveal the original form of the released potassium. The novel arrangement of the P

The elucidation of premixed ethylene/air combustion mechanisms holds theoretical significance for optimizing engines such as pulse detonation engines and rotating detonation engines. The flame front structure constitutes a vital factor of premixed ethylene/air combustion mechanisms, while the prevailing planar laser-induced fluorescence techniques currently in use fall short of directly visualizin

To reach their net-zero targets, countries will have to compensate hard-to-abate CO2 emissions through carbon dioxide removal (CDR). Yet, current assessments rarely include socio-cultural or institutional aspects or fail to contextualize CDR options for implementation. Here we present a context-specific feasibility assessment of CDR options for the example of Germany. We assess 14 CDR options, inc

Many claims have been made in the past that Management and Organization Studies (MOS) is becoming increasingly fragmented, and that this fragmentation is causing it to drift into self-reference and irrelevance. Despite the weight of this claim, it has not yet been subjected to a systematic empirical test. This paper addresses this research gap using the tribalization approach and diachronic co-cit

Place branders express a desire for their work to aid in addressing crises such as climate change through sustainable developments that assist with brand positioning, yet little is known about how place branding professionals manage tensions and contradictions that arise between sustainability and investment development. This paper qualitatively explores how place branders talk about ecological su

Objective: Research suggests that recurrent seizures may lead to neuronal injury. Neurofilament light chain protein (NfL) and glial fibrillary acidic protein (GFAP) levels increase in cerebrospinal fluid and blood in response to neuroaxonal damage, and they have been hypothesized as potential biomarkers for epilepsy. We examined plasma NfL and GFAP levels and their diagnostic utility in differenti

India has positioned itself as a leader in transitioning its energy sector to renewable sources, with ambitious targets and policies in place. Large-scale grid-integrated renewable energy plants have been identified as the most efficient option. Scholarly arguments differ regarding the impacts of renewables-led transitions, with some emphasizing positive environmental, economic, and social outcome

Nitrogenase is the only enzyme that can cleave the strong triple bond in N2, making nitrogen available for biological life. Despite extensive research, the mechanism of nitrogen fixation by nitrogenase is not fully understood, partly due to the enzyme’s complex structure, which includes the largest iron–sulfur cluster known in metalloenzymes, the FeMo cluster. Understanding this process requires t

Ribbed channel flows are encountered in numerous engineering applications to promote turbulence and enhance heat transfer in various cooling passages, e.g., in turbine blades and at combustor walls. Numerical simulations have become an increasingly useful tool for providing insights into complex turbulence and flow separation, which are critical to the design and optimization of such channels. In

We present a novel, and computationally cheap, way to estimate electrostatic screening lengths from simulations of restricted primitive model (RPM) electrolytes. We demonstrate that the method is accurate by comparisons with simulated long-ranged parts of the charge density, at various Bjerrum lengths, salt concentrations and ion diameters. We find substantial underscreening in low dielectric solv

Citizens have increasingly diversified their use of social media platforms, raising questions about which platforms are adopted and for what purposes. We use survey data from four countries (Canada, France, the United States, and the United Kingdom) gathered in 2019 and 2021 (n = 12,302) about Facebook, YouTube, Instagram, Twitter, Reddit, Snapchat, and WhatsApp. Political ideology predicts the ad

The pathophysiology underlying impaired LV function in PAH remains unclear, with some studies implicating intrinsic myocardial dysfunction and others pointing to LV underfilling. Evaluation of pulmonary vein area (PVA) and flow may offer novel, mechanistic insight by distinguishing elevated LV filling pressure common in myocardial dysfunction from LV underfilling. This study aimed to elucidate LV

Bisher gibt es kaum Forschung zu digitalen Formen und der Verbreitung von Antisemitismus. Wie in diesem Band gezeigt wird, nimmt jedoch das akademische Interesse an Antisemitismus in sozialen Medien zu. Der Großteil des vorhandenen Wissens zu diesem Thema stammt hauptsächlich aus zwei Arten von Forschung. Bei der ersten handelt es sich um Berichte von Nichtregierungs- und Regierungsstellen, bei de

I explore the experience of managing type 1 diabetes with wearable technology. Type 1 diabetes is a chronic illness which requires continuous maintenance to keep the blood glucose levels within range. Using autoethnography, I investigate both the practices of translating information from technology and from senses, and also from health authorities, into practices. I conclude that the management of

Insects rely on path integration (vector-based navigation) and landmark guidance to perform sophisticated navigational feats, rivaling those seen in mammals. Bees in particular exhibit complex navigation behaviors including creating optimal routes and novel shortcuts between locations, an ability historically indicative of the presence of a cognitive map. A mammalian cognitive map has been widely

Within the Langevin framework, we investigate the dynamics of the fusion process for production of transfermium elements in reactions of 48Ca, 50Ti, 54Cr, and 58Fe with 208Pb. After the reacting nuclei have made contact, the early dynamical stage is dominated by the dissipation of the initial radial kinetic energy, while the subsequent shape evolution is diffusive. The probability for surmounting