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The terms ‘informal sector’ and ‘shadow economy’ are in vogue but remain conceptually fuzzy in what they measure or mean. They are used in tax research and policy but with many assumptions, leading to poorly designed policies that lead to further immiseration of those who derive their livelihoods informally. Focusing on Sub-Saharan Africa, I critically interrogate the current conceptualisation of
Uridine residues present at the wobble position of eukaryotic cytosolic tRNAs often carry a 5-carbamoylmethyl (ncm5), 5-methoxycarbonylmethyl (mcm5), or 5-methoxycarbonylhydroxymethyl (mchm5) side-chain. The presence of these side-chains allows proper pairing with cognate codons and they are particularly important in tRNA species where the U34 residue is also modified with a 2-thio (s2) group. The
Purpose: The aim of the study is to investigate the association between serum levels of cortisol and erectile function in healthy men aged 45-60 years.Material and methods: The serum level of cortisol was measured. The international index of erectile function-5 items (IIEF-5) was used to assess the erectile function.Data were gathered on the age of participants, Body Mass Index (BMI), waist circum
We present data on molluscan fauna within the L3 loess unit (and partially within the S3 paleosol) from the key loess section of Veliki Surduk in Serbia. The section correlates to Marine Isotope Stage (MIS) 8 and late MIS 9 and, thus, spans the time frame from ~350 to 250 ka. The Veliki Surduk loess–paleosol sequence (LPS) is located on the northwestern margin of the Titel loess plateau and compri
Common wall lizards (Podarcis muralis) in Italy show a striking variation in body coloration across the landscape, with highly exaggerated black and green colors in hot and dry climates and brown and white colors in cool and wet climates. Males are more intensely colored than females, and previous work has suggested that the maintenance of variation in coloration across the landscape reflects clim
Smallholder farmers are widely touted as essential to sustainable agricultural development in sub-Saharan Africa and beyond. But what exactly is meant by sustainable development, and how are smallholder farmers expected to contribute to it? In this perspective, we describe and assess two competing visions of sustainable development, namely Capital Theory and the Capabilities approach, paying speci
The aerobic oxidation of carbon monoxide to carbon dioxide is catalysed by the Mo/Cu-containing CO-dehydrogenase enzyme in the soil bacterium Oligotropha carboxidovorans, enabling the organism to grow on the small gas molecule as carbon and energy source. It was shown experimentally that silver can be substituted for copper in the active site of Mo/Cu CODH to yield a functional enzyme. In this stu
This open access book brings together experts from both EU competition law as well fundamental rights backgrounds, discussing the most recent developments in EU legislation on digitalisation. Most prominently, it explores the recently introduced Digital Markets Act (DMA), including a discussion on other related legislative acts and the respective case law. It is aimed mostly at academics and resea
Background: There is a long-standing debate about the role of spacing and stopping in the fertility transition, fueled by a lack of methods to appropriately model spacing and stopping. Traditional event-history analysis cannot distinguish between the two processes in analyzing the determinants of birth risks, and attempts to separately model spacing and stopping have been criticized from a methodo
From an early age, humans intuitively expect physical objects to obey core principles, includingcontinuity (objects follow spatiotemporally continuous paths) and solidity (two solid objects cannotoccupy the same space at the same time). These 2 principles are sometimes viewed as deriving from asingle overarching “persistence” principle. Indeed, violations of solidity where one solid object seem-in
Perceiving object motion during self-movement is an essential ability of humans. Previous studies have reported that the visual system can use both visual information (such as optic flow) and non-visual information (such as vestibular, somatosensory, and proprioceptive information) to identify and globally subtract the retinal motion component due to self-movement to recover scene-relative object
Vibrational structures of the C1s and N1s photoelectron spectra of gas-phase HCN have been investigated using monochromated third-generation synchrotron radiation. Both spectra exhibit resolved fine structure associated with several vibrationally excited states. In the C1s spectrum a single vibrational progression is observed, while the N1s spectrum is more complex. High-level ab initio calculatio
This thesis addresses drinking water quality and microbiology in full-scale drinking water distribution systems (DWDSs). It examines how UV irradiation and slow sand filters (SSFs) alter the water bacteriome, and how the biofilm in the DWDS affects the drinking water quality.In addition, the effects of installing a combined ultrafiltration and coagulation treatment stage on the pipe biofilm comm
The current pandemic SARS-CoV-2 has required an unusual allocation of resources that can negatively impact chronically ill patients and high-complexity procedures. Across the European Reference Network on Pediatric Transplantation (ERN TransplantChild), we conducted a survey to investigate the impact of the COVID-19 outbreak on pediatric transplant activity and healthcare practices in both solid o
A method is proposed for realistic simulation of the breast ductal network as part of a computer three-dimensional (3-D) breast phantom. The ductal network is simulated using tree models. Synthetic trees are generated based upon a description of ductal branching by ramification matrices (R matrices), whose elements represent the probabilities of branching at various levels of a tree. We simulated
We propose a low-scale renormalizable trinification theory that successfully explains the flavor hierarchies and neutrino puzzle in the Standard Model (SM), as well as provides a dark matter candidate and also contains the necessary means for efficient leptogenesis. The proposed theory is based on the trinification SU(3)C×SU(3)L×SU(3)R gauge symmetry, which is supplemented with an additional flavo
The β decay of Hg208 into the one-proton hole, one neutron-particle Tl81208127 nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z
The notion of “contextual theology” has a long history, beginning with its gradual introduction in the “Fund for Theological Education”. Theology takes place as doing theology within contexts. A significant criterion for differentiating between, for example, contextual and constructive theology seems to lie in the valuation of how suffering, violence, and the struggle for social and environmental
