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This international curricular review provides a structured overview of the particle physics content in 27 state, national, and international high-school physics curricula. The review was based on a coding manual that included 60 concepts that were identified as relevant for high-school particle physics education.
Two types of curricula were reviewed, namely curricula with a dedicated particle physics chapter and curricula without a dedicated particle physics chapter.
The results of the curricular review show that particle physics concepts are explicitly or implicitly present in all reviewed curricula.
However, the number of particle physics concepts that are featured in a curriculum varies greatly across the reviewed curricula. We identified core particle physics concepts that can be found in most curricula. Here, elementary particles, fundamental interactions, and charges were identified as explicit particle physics concepts that are featured in more than half of the reviewed curricula either as content or context. Indeed, theoretical particle physics concepts are more prominent in high-school physics curricula than experimental particle physics concepts.
Overall, this international curricular review provides the basis for future curricular development with respect to particle physics and suggests an increased inclusion of experimental particle physics concepts in high-school physics curricula.
Fischer Strafgesetzbuch
(2024)
On his journey to the 'Orient' in 1856, the cultural entrepreneur from Vienna Ludwig August Frankl (1810–94) discussed the recent Hatt-ı-Hümayun, the new constitution promulgated by Sultan Abdülmecid I for the Ottoman Empire, with a Turkish state official. Frankl said that the European nations wondered whether the Ottoman Empire would be able to enact this revolutionary legislation, especially given the fact that they themselves had not yet implemented the full emancipation of religious minorities in their countries. 'Equal rights for all religions,' he exclaimed. 'While England orders this legislation for an, Your Mightiness will excuse the common expression, uncivilized nation, they do not comply with it in their own Parliament' (Ludwig August Frankl, Nach Jerusalem! (1858), i, 191). While criticizing England's hypocritical policy, Frankl, as an Austrian Jew, was actually referring to the discriminatory legislation against Jews in his own country, the Habsburg Monarchy. European Jews, whose legal emancipation had been postponed since the eighteenth century, were in awe of the Ottoman reforms that fundamentally reversed the relationship between Muslims and non-Muslims with the stroke of a pen. The chequered relationship between the Ottoman Empire and the European powers, or more precisely, the Habsburg Monarchy, from the nineteenth century until the First World War, is the topic of Barbara Haider-Wilson's comprehensive study Österreichs friedlicher Kreuzzug 1839–1917.
The simultaneous detection of gravitational waves and light from the binary neutron star merger GW170817 led to independent measurements of distance and redshift, providing a direct estimate of the Hubble constant H-0 that does not rely on a cosmic distance ladder, nor assumes a specific cosmological model.
By using gravitational waves as "standard sirens", this approach holds promise to arbitrate the existing tension between the H-0 value inferred from the cosmic microwave background and those obtained from local measurements.
However, the known degeneracy in the gravitational-wave analysis between distance and inclination of the source led to a H-0 value from GW170817 that was not precise enough to resolve the existing tension.
In this review, we summarize recent works exploiting the viewing-angle dependence of the electromagnetic signal, namely the associated short gamma-ray burst and kilonova, to constrain the system inclination and improve on H-0.
We outline the key ingredients of the different methods, summarize the results obtained in the aftermath of GW170817 and discuss the possible systematics introduced by each of these methods.
Western-style obesity-promoting diets are associated with increased inflammation, higher disease incidence and mortality.
In contrast, plant-based diets (PBDs), which incorporate large amounts of vegetables and fruit, legumes, whole grains and only a small amount of meat, are generally associated with better health and lower mortality.
This narrative review summarizes the evidence on health and life span in adults adhering to PBDs and discusses the potentially longevity-promoting mechanism of PBDs as well as limitations due to nutrient deficiencies.
Epidemiologic studies consistently report lower mortality rates in adults who adhering to PBDs when compared with people whose diet regularly includes meat.
PBDs are associated with many health benefits, such as improved metabolic and inflammatory profile.
In turn, the incidence of cardiovascular disease is lower in adults consuming PBDs, which contributes to their better health. The health-promoting effects of PBDs are still not entirely clear but most likely multifactorial and include modulation of the gut microbiome. The interest in possible longevity-promoting mechanisms of PBDs has increased in recent years, as many characteristics of PBDs such as protein restriction and restriction of certain amino acids are known to extend the life span.
While there is ample evidence from animal studies, large-scale human studies, which also provide insight into the specific mechanisms of the effect of PBDs on longevity, are missing.
However, due to the lower protein content of PBDs, there appears to be an age limit for the anticipated health effects, as adults over 65 require larger amounts of protein.