The research aims to reconstruct a transnational history of Finn Malmgren’s contribution to the exploration of the Arctic, with a specific focus on the polar air expeditions of Norge (1926) and Italia (1928). The analysis of archive sources consulted in Italy, Norway, and Sweden sheds light on some key aspects of these two expeditions. In particular, the study of numerous unpublished documents – from the correspondence with personalities such as Umberto Nobile and Anna Nordenskjöld to the contemporary testimonies of Adalberto Mariano and Filippo Zappi – offers new insights into issues such as the international meteorological cooperation during the preparation of the Norge expedition and the march on the pack of Malmgren, Mariano and Zappi.

A limitation in fine-tuned tree-ring radiocarbon (14C) data is normally associated with overall data uncertainty. Tree-ring 14C data variance as a result of sample heterogeneity can be reduced by adopting best practices at the time of sample collection and subsequent preparation and analysis. Variance-reduction of 14C data was achieved by meticulous sample handling during increment core or cross-sectional cuttings, in-laboratory wood reductions, and cellulose fiber homogenization of whole rings. To demonstrate the performance of those procedures to final 14C results, we took advantage of the replicated data from assigned calendar years of two Pantropical post-1950 AD tree-ring 14C reconstructions. Two Cedrela fissilis Vell. trees spaced 22.5 km apart, and two trees of this species together with one Peltogyne paniculata Benth tree spaced 0.2 to 5 km apart were sampled in a tropical dry and moist forest, respectively. Replicate 14C data were then obtained from grouped tree-ring samples from each site. A total of 88% of the replicated 14C results fell into a remarkably consistent precision/accuracy range of 0.3% or less, even though multiple tree species were used as pairs/sets. This finding illustrates how adopting a few simple strategies, in tandem with already established chemical extraction procedures and high-precision 14C analysis, can improve 14C data results of tropical trees.

This article examines the unexpected revival of Rodina (Motherland), a nationalist party that had been suppressed in 2006 for its embrace of “orangist,” anti-Putin politics. Five years later, Rodina was relaunched in response to the crisis of the Medvedev–Putin “tandemocracy.” This article shows that Rodina played a central role in the Kremlin’s “managed nationalism,” which sought to direct the energies of Russian nationalists into loyalist channels. In particular, it illuminates three ways that Rodina facilitated collaboration between nationalists and the regime. First, it helped to integrate nationalists into the All-Russia Popular Front, the umbrella structure that was created as a vehicle for Putin’s return to the presidency. Second, it served as a counterrevolutionary force by drawing nationalists from the “white ribbon” protest movement into two Kremlin-supported initiatives: the “conservative turn” and a media campaign against non-Slavic immigration. And third, it acted as a proxy for the Russian state during the annexation of Crimea and the conflict in southeast Ukraine, recruiting nationalists to serve as separatists and cultivating the support of European radical nationalists. In these three ways, Rodina contributed both to Russia’s autocratization and to the growing influence of nationalist ideas in public discourse.

Alexandrov’s estimate states that if $\Omega $ is a bounded open convex domain in $\mathbb {R}^n$ and $u:\bar \Omega \to \mathbb {R}$ is a convex solution of the Monge-Ampère equation $\det D^2 u = f$ that vanishes on $\partial \Omega $, then

$$\begin{align*}|u(x) - u(y)| \le \omega(|x-y|)(\int_\Omega f)^{1/n} \qquad \text{for }\omega(\delta) = C_n\,\text{diam}(\Omega)^{\frac{n-1}n} \delta^{1/n}. \end{align*}$$

$\partial \Omega $

$0$

$\omega (\delta )$

$C_\Omega \delta ^{\frac 12 + \frac 1{2n}}$

$C_\Omega $

$n=2$

$n\ge 3$

$\partial \Omega $

$C^2$

$\omega _\Omega (\delta )$

$\delta \to 0$

$\omega _\Omega $

$\partial \Omega $

$\omega _\Omega (\delta ) = o(\delta ^{1/n})$

$\delta \to 0$

$\omega _\Omega (\delta ) \le C \delta ^\alpha $

$\alpha>1/n$

On February 6, 2023, a Mw 7.8 earthquake struck southern and central Turkey and northern and western Syria. Over 50 000 people were confirmed dead, and nearly 130 000 were injured. The Turkish government was leading the response there through coordination by the Disaster and Emergency Management Agency (AFAD). A massive search and rescue operation continued, and humanitarian partners were rapidly ramping up efforts to provide life-saving assistance. Over 53 000 Turkish emergency workers were deployed to the regions affected by the earthquakes. More than 100 nations and international organizations mounted a massive, unprecedented response. Among them, the State of Israel dispatched 2 missions, with the first on the ground the same day as the earthquake. Under guidance of the local health authorities, it was determined that the most effective approach would be to support an existing medical facility rather than establishing a standalone field operation. Teams responding to disaster zones should arrive only after a formal request and deploy after full coordination with the local country. The devastated country understands best what is really needed. Deploying in full collaboration has an advantage of better cultural understanding and long-term effect in restoring the local needs.

In this essay, I explore possibilities for phenomenology beyond Hegel with respect to questions of conscience, guilt, and ethics. In the first section, I briefly introduce Heidegger’s phenomenology. The next section provides an interpretation of conscience in Hegel’s Phenomenology of Spirit. Like Hegel, Heidegger claims that conscience states my guilt prior to any specific wrongdoings; Heidegger’s ideas around the ‘call of conscience’ are thus considered next. Building on differences and connections between Hegel’s and Heidegger’s phenomenologies of conscience, the final section outlines implications for a phenomenologically responsive ethics.

Two contradictory tendencies mark the historiography of Christianity in South Africa. First, the country has been a rich crucible for important scholarship on Christianity. In a country where 80 per cent of the population currently claim Christian affiliation, it is not hard to imagine why this would be the case. The country has a centuries-old Christian presence, spanning the Protestantism of early Dutch settlers in the Cape to the many European and North American missionaries of all persuasions who descended upon South Africa in subsequent centuries (some estimated that the south-eastern region of Natal in the nineteenth century was the most missionised area in the world at that time). An equally great magnet for scholarship was the size and diversity of the independent church movement in South Africa – or those Christians who broke away from missionary oversight to form Black-led congregations, many affiliated with other Black Christian organisations in the Atlantic world. By the mid-century, thousands of churches labelling themselves as Zionist, Apostolic and Ethiopian filled South Africa and attracted a commensurately rich scholarship; many such studies focused on how Christianity was Africanised via the independent church movement. In a darker vein, a further impetus for scholarly interest was the way in which Protestantism was wielded by (some) Afrikaners to justify the apartheid regime. Unsurprisingly, this led to an expansive twentieth-century literature on state power and Christianity, both social scientific as well as theological. Finally, historical studies in general have tended to cluster more densely in South Africa than is the case for many other regions of the African continent – a phenomenon that is due to the country's thriving research scene and its many tertiary education institutions. Viewed from this perspective, the large number of histories of Christianity in South Africa should be seen as a smaller subset of the extensive scholarship on South Africa itself.

The embedding problem of Markov chains examines whether a stochastic matrix$\mathbf{P} $ can arise as the transition matrix from time 0 to time 1 of a continuous-time Markov chain. When the chain is homogeneous, it checks if $ \mathbf{P}=\exp{\mathbf{Q}}$ for a rate matrix $ \mathbf{Q}$ with zero row sums and non-negative off-diagonal elements, called a Markov generator. It is known that a Markov generator may not always exist or be unique. This paper addresses finding $ \mathbf{Q}$, assuming that the process has at most one jump per unit time interval, and focuses on the problem of aligning the conditional one-jump transition matrix from time 0 to time 1 with $ \mathbf{P}$. We derive a formula for this matrix in terms of $ \mathbf{Q}$ and establish that for any $ \mathbf{P}$ with non-zero diagonal entries, a unique $ \mathbf{Q}$, called the ${\unicode{x1D7D9}}$-generator, exists. We compare the ${\unicode{x1D7D9}}$-generator with the one-jump rate matrix from Jarrow, Lando, and Turnbull (1997), showing which is a better approximate Markov generator of $ \mathbf{P}$ in some practical cases.

The effect of diminished ovarian reserves after undergoing hysterectomies with bilateral salpingectomies is one of the health concerns among reproductive-age women with benign gynecological diseases. Coenzyme Q10 (CoQ10), an antioxidant, is crucial in mitochondrial energy production, improving oocyte quality and quantity. This study compares the benefit of a 14-d preoperative (CoQ10) v. placebo on ovarian reserve by measuring anti-Müllerian hormone (AMH) in women undergoing hysterectomy with bilateral salpingectomy. A double-blinded, randomised, placebo-controlled trial was conducted. Forty-four women with benign gynecological diseases were randomised to receive either oral CoQ10 300 mg per d or placebo for 14 d before undergoing hysterectomy with bilateral salpingectomy. Serum AMH levels were collected for analysis before taking CoQ10 and 6 weeks postoperatively in each group. The baseline demographic, clinical characteristics and baseline AMH levels were comparable between the groups (1·47 (0·45, 2·49) v. 1·29 (0·47, 2·11), P = 0·763). The serum AMH levels after the surgery were significantly decreased from preoperative levels (median 0·99 (0·37, 1·63) v. 1·34 (0·57, 2·30)), P = 0·001. However, there was no significant difference in the AMH change between the CoQ10 group and the placebo group (AMH per cent change −28·2 % (64·09, −4·81) v. −20·07 % (–61·51, −2·92)), P = 0·99, respectively. Age, gynecological disease, operative time and blood loss were not significantly associated with the AMH change. There were no significant side effects or adverse operative outcomes among CoQ10 users. In conclusion, hysterectomy with bilateral salpingectomy led to a significantly decreased AMH level. However, pretreatment with CoQ10 for 2 weeks was ineffective in protecting an ovarian reserve.

In December 2017 the Venetian Region (local Authority), financed the creation of the Operational Group (OG) ‘Serinnovation’, within the framework of the Rural Development Plan supported by the European Community. The OG aims at coordinating and spreading innovation in sericulture through mechanisation of processes and centralisation of some rearing steps, the use of waste as by-products and traceability to promote local productions. The project acts on perceived quality by increasing the added value, through production cost efficiency, and on the recovery of the waste material for further applications (circular economy). The final target was to develop a niche-process to obtain traceable ‘Made-in-Italy’ silk for the luxury market and non-textile applications. A first strategy to increase the efficiency of the process was to build an automatic leaf cutting machine to prepare the feed for the first three instars of the silkworm (Bombyx mori Linnaeus). This new machine – based on a patent – was validated through several tests and compared with the cutting system previously used. The study was completed by a bioassay of production and survival rate associated with the introduction of this innovation. The results showed that labour saving is in the order of 10% compared to a semi-manual process, the leaf quality is not affected, survival of larvae and silk production are not significantly different from the control. This methodology is proposed as a study case for other similar mechanisation processes in entomological production, as the impact of innovations on insect physiology should be carefully considered.

In this article, we calculate the Birkhoff spectrum in terms of the Hausdorff dimension of level sets for Birkhoff averages of continuous potentials for a certain family of diagonally affine iterated function systems. Also, we study Besicovitch–Eggleston sets for finite generalized Lüroth series number systems with redundancy. The redundancy refers to the fact that each number $x \in [0,1]$ has uncountably many expansions in the system. We determine the Hausdorff dimension of digit frequency sets for such expansions along fibres.

This paper critically addresses the logics of exceptionality inherent to emerging regulations of the gender field, with a focus on Spain’s recent self-determination-based regulation of gender. To achieve this, it offers a biopolitical analysis of the concept of “public order” and its influence on gender governance, drawing parallels to Agamben’s concept of the state of exception and exploring the connections between contemporary regulations and the gendered public order of nineteenth-century France. Finally, it analyzes the exclusions and restrictions that the Spanish trans law reserves for migrants, non-binary people, and minors, contributing to the ongoing discourse on the limitations to gender autonomy in contemporary Western societies.