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Although the ~200 impact craters known on Earth represent only a small fraction of the craters originally formed, the available data suggest an excess of craters by one order of magnitude, in number, in the interval ca. 470-440 Ma during the Ordovician. Most of these “excess” craters may be related to the breakup of the L-chondrite parent body (LCPB) in the asteroid belt at 465.8 ± 0.3 Ma. This is

Numerical models of meteorite delivery from impacts on the Moon have demonstrated that the impact event forming the lunar crater Tycho (~85 km diameter; ca. 109 Ma age) would have delivered considerable amounts of ejected material to Earth. The ejecta, containing lunar Ti- and V-rich chrome spinels, would have been distributed globally and admixed with seafloor sediments over a few meters of a typ

Swallowing problems may be due to an abnormal transportation of food and drinks from the mouth to the stomach. The esophagram aims to monitor this and to reveal abnormalities in the morphodynamic process. It is important to analyze the patient’s symptom before the examination in order to custom-tailor the radiologic approach and to be able to explain the patients symptoms. Lower motor-neuron disea

Just as the cytomorphological picture is composed of several microscopic components, the cytodiagnostic conclusion should be supported by several other components, such as the clinical setting and the ancillary techniques applied, particularly flow cytometry and polymerase chain reaction (PCR)-based molecular genetic analyses for lymphomas, and immunohistochemistry for metastatic disease. In the s

Antiferromagnets are promising candidates for ultrafast spintronic applications, leveraging current-induced spin-orbit torques. However, experimentally distinguishing between different switching mechanisms of the staggered magnetization (Néel vector) driven by current pulses remains a challenge. In an exemplary study of the collinear antiferromagnetic compound Mn2Au, we demonstrate that slower the

The purpose of this narrative review is to provide an evidence-based update on management strategies for young adults with meniscal tears, based on two recent randomized controlled trials comparing a surgical vs. non-surgical treatment strategy for this patient group. The results from these trials suggests that exercise therapy is a viable treatment alternative for young adults with a meniscal tea

An explicit algorithm is given for the computation of the Hausdorff dimension of the closure of a regular branch group in terms of an arbitrary branch structure. We implement this algorithm in GAP and apply it to a family of GGS-groups acting on the 4-adic tree.

We study the impact of the early gender environment on inequality in the labor market. To this end, we link primary school data to occupations and earnings. We find that women exposed to more girls at critical ages earn more later on: A 10 percent increase in the share of girls leads to a gender wage gap reduction of 2.7 percent. We explore mechanisms and find a strong selection of women into less

Although communism was a Western creation, its last consequences were implemented in southeastern Europe. In addition to the imposed aspects, there were local enthusiasms and excesses of zeal (euphemistically speaking), which attest to the existence of an identity matrix and a common mentality. Countries with an authoritarian tradition have absorbed this ideology of simultaneous denationalization

We report on a single-shot longitudinal phase-space reconstruction diagnostic for electron beams in a laser wakefield accelerator via the experimental observation of distinct periodic modulations in the angularly resolved spectra. Such modulated angular spectra arise as a result of the direct interaction between the ultrarelativistic electron beam and the laser driver in the presence of the wakefi

Starting with the lead compound roquinimex, a selection of 3-quinolinecarboxamide derivatives were synthesized and evaluated for the treatment of the autoimmune disease multiple sclerosis. Structure-activity relationships were established in animal studies and from these, laquinimod was chosen as the drug candidate due to its superior potency and toxicological profile as compared to roquinimex. Ho

Den nationalekonomiska forskningen har genomgått en snabb utveckling under de senaste 10–20 åren. Nya teorier och nya forskningsfält har tillkommit. Traditionellt har man föreställt sig att ekonomisk teori bara är av värde för förståelsen av hur marknaden fungerar. Nu hävdar ekonomer att deras teori med fördel kan användas på alla sidor av det svenska samhället, även dem som vi betraktar som tillh

A concept of germ graphs and the M-function formalism are employed to construct large families of isospectral and isoscattering graphs. This approach represents a complete departure from the original approach pioneered by Sunada, where isospectral graphs are obtained as quotients of a certain large symmetric graph. Using the M-function formalism and the symmetries of the graph itself we construct

The labour market has become increasingly dynamic, characterised by technological change, greater job mobility and shifting employee expectations. As employees place growing importance on development, work environment and work-life balance, organisations face new challenges in retaining talent. One strategy to retain employees is internal employer branding. As engineers have good opportunities to

Meningiomas are the most common primary tumors of the central nervous system and show clinical heterogeneity across WHO grades. While grade 1 meningiomas are typically benign, grade 3 (anaplastic) meningiomas are rare, highly aggressive, and associated with poor prognosis. Current histopathological grading does not fully capture tumor biology, therefore molecular approaches are needed to better re

When an account of promising is too cognitively demanding, it cannot apply to persons who can receive promises but cannot ascribe higher-order mental states to others. Scanlon’s account of promises is such an account. This thesis argues that Scanlon can make his account less cognitively demanding by revising his theory of speech acts. Instead of being an intentionalist, Scanlon should be an expres

This thesis explores the difference between how moral realists and moral error theorists relate to moral intuitions in metaethical theory building. While moral realists claim Moorean arguments in their favour, arguments based around a highly intuitive Moorean premise, error theorists claim that a moral premise being intuitive is not the same as it being true. Error theorists use debunking argument

The inefficacy problem refers to the paradox in collective harm problems where effects of individual actions appear too small to make a moral difference, albeit aggregated they cause great harm. This thesis will argue that the inefficacy problem derives its strength from the thought experiments commonly used to theorize, structure and understand the collective harm problem of climate change. By re