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Perovskite solar cells are among the most exciting photovoltaic systems as they combine low recombination losses, ease of fabrication, and high spectral tunability. The Achilles heel of this technology is the device stability due to the ionic nature of the perovskite crystal, rendering it highly hygroscopic, and the extensive diffusion of ions especially at increased temperatures. Herein, we demon

This paper deals with the real-time implementation of feedback controllers. In particular, it provides an analysis of the stability property of closed-loop systems that include a controller that can sporadically miss deadlines. In this context, the weakly hard m-K computational model has been widely adopted and researchers used it to design and verify controllers that are robust to deadline misses

The article is a comparative inquiry into the roles of Ilia Chavchavadze (1837-1907) and Taras Shevchenko (1818-1861) as national poets and anti-tsarist intellectuals within the context of their respective national traditions (in Georgia and Ukraine). During the period of their activity (19th and the beginning of 20th century), both Ukraine and Georgia were under tsarist imperial rule (albeit the

Since the Rose Revolution (2003), Georgia has encountered an unprecedented scale of institutional reforms concomitant with the rise of American and European involvement in the “democratization” process. Various scholars have suggested that Georgian nationalism developed from an ethno-cultural basis to a more civic/liberal orientation after the Rose Revolution. This paper analyzes Georgian national

In their natural environments, organisms are unlikely to be distributed randomly but instead they are constantly faced with multiple and variable threats. In order to maximise survival, they need to be able to perceive the present threat level and respond accordingly. In aquatic ecosystems, two common threats for crustacean zooplankton are predation and ultraviolet radiation (UVR). Despite the gro

Purpose of ReviewIt is important to examine what effect sleep has after an emotional experience. More knowledge about this topic could help inform us whether there are any potential sleep interventions that could help make sure that memories of negative emotional experiences are processed in the most adaptive manner possible.Recent FindingsFindings on the role of sleep in altering reactivity to em

The Learning with Errors (LWE) problem is one of the main mathematical foundations of post-quantum cryptography. One of the main groups of algorithms for solving LWE is the Blum-Kalai-Wasserman (BKW) algorithm. This paper presents new improvements for BKW-style algorithms for solving LWE instances. We target minimum concrete complexity and we introduce a new reduction step where we partially reduc

Protein-based drugs often require targeted drug delivery for optimal therapy. A successful strategy to increase the circulation time of the protein in the blood is to link the therapeutic protein with an albumin-binding domain. In this work, we characterized such a proteinbased drug, GA-Z. Using asymmetrical flow field-flow fractionation coupled with multi-angle light scattering (AF4-MALS) we inve

We need to redescribe our critique towards EU and the US by taking also an account of the bigotist white lesbians and gays. The newly-gained rights to be “included” sexually in some legal regimes creates homonationalism, as some people have started to imagine queer whiteness as their “natural” safeguard and are expressing this in the political arenas, both queer and straight. However, their imagin

Microbial diversity and their activity in the rhizosphere and bulk soil areas were measured in a long-term field trial (started in 1956), where maize has been grown for the last 20 years with and without N fertilisation. Various microbial groups and their substrate feeding strategies (i.e. demonstrating activities) were identified through phospholipid fatty acids (PLFAs) analysis and their δ13C va

This study compares taxation trends, volatility and tax effort between sub-Saharan Africa (SSA) and Latin American and the Caribbean (LAC) countries since 1980. It finds that the LAC countries lead on revenue collection and revenue stability, but richer SSA countries outperform their LAC counterparts. Since 2010, there has been a divergence on personal income taxes, which have grown in SSA but dec