Accurate radiocarbon (14C) analysis depends on a successful carbon separation relevant to the studied object. The process of 14C dating involves the following steps: characterization and sample choice, sample treatment, measurements, and evaluation of the results. Here, we provide an overview of conventional approaches to macromolecular samples and address specific issues such as detecting and removing contamination with roots, dolomite, and conservation products. We discuss the application of elemental analysis (%N, %C) in the preparation of bones and the infrared analysis in monitoring the contamination of samples. Our observations provide the basis for the discussions of the existing results and for planning the future sampling.

The current Special Issue marks a major milestone in the history of developmental psychopathology; as the final issue edited by Cicchetti, we have an opportunity to reflect on the remarkable progress of the discipline across the last four decades, as well as challenges and future directions for the field. With contemporary issues in mind, including rising rates of psychopathology, health disparities, and international conflict, as well as rapid growth and accessibility of digital and mobile technologies, the discipline of developmental psychopathology is poised to advance multidisciplinary, developmentally- and contextually- informed research, and to make substantial progress in supporting the healthy development of individuals around the world. We highlight key future directions and challenges for the next generation of developmental psychopathology research including further investigation of culture at multiple levels of analysis, incorporation of macro-level influences into developmental psychopathology research, methods advances to address heterogeneity in translational research, precision mental health, and the extension of developmental psychopathology research across the lifespan.

We show that an estimate by de la Peña, Ibragimov, and Jordan for ${\mathbb{E}}(X-c)^+$, with c a constant and X a random variable of which the mean, the variance, and $\mathbb{P}(X \leqslant c)$ are known, implies an estimate by Scarf on the infimum of ${\mathbb{E}}(X \wedge c)$ over the set of positive random variables X with fixed mean and variance. This also shows, as a consequence, that the former estimate implies an estimate by Lo on European option prices.

Gadfly petrels Pterodroma spp. are among the most threatened bird taxa. Conservation interventions have been successfully developed and applied for some gadfly petrel species, but a substantial gap remains in conservation science for this group in the tropical Pacific Ocean. The Vanuatu Petrel Pterodroma [cervicalis] occulta is an ideal exemplar to develop a pipeline for conservation science in tropical Pacific gadfly petrels as it is subject to many of the challenges facing other gadfly petrel taxa in the region. We review over 40 pelagic Vanuatu Petrel records and five research expeditions to the only known colony on the island of Vanua Lava, Vanuatu. These records provide a baseline from which to recommend conservation research actions for the taxon. The population status, taxonomy, distribution, and threat profile of the taxon are all poorly known, and these areas are high priorities for future research.

A recurring conundrum lies at the heart of current anti-trafficking law and policy. Despite enormous efforts by civil society organizations, corporations, and governments to reduce human trafficking in supply chains, and the introduction of legislation in various countries that requires corporations to take active actions in this field, there is wide agreement that, so far, the desired change has not occurred. This article addresses this puzzle through studying the vibrant anti-trafficking activity in the UK construction sector that emerged following the enactment of the UK Modern Slavery Act 2015 (MSA). Applying socio-legal methods, the article unpacks the structural dynamics that shape the implementation of the MSA in the construction sector. We find that the Act exacerbates the imbalanced power relations between firms and anti-trafficking initiatives, positioning the latter as suppliers of modern slavery risk solutions that are dependent on corporate will and funding. The article demonstrates that anti-trafficking initiatives in the construction sector largely follow a “supply chain logic” that significantly limits their capacities to transform corporate behavior. We develop the notion of “anti-trafficking chains” to describe the dynamics of anti-trafficking activities in supply chains and to problematize the entanglement of anti-trafficking actors in supply chain power structure and logic.

The variability of adverbial placement in the modified infinitive construction (i.e. split infinitives vs. full infinitives with adverbial pre- and post-modification) has been widely discussed in the (American English) literature. Yet a convincing generalized explanation for the variation that simultaneously incorporates language-internal and language-external factors has yet to be found, particularly in English varieties that have not received as much scholarly attention as standardized varieties. This article investigates modified infinitive syntactic variation in Twitter-style Philippine English (PhE) using a 135-million-word Twitter corpus. It adopts a Bayesian approach in conducting a multiple multinomial regression analysis of the said variation, with the help of Deep-Learning-based demographic inference tools. Although the conditioning effects of some factors diverge from patterns discussed in prior work, the results generally show that language-internal (e.g. stress and rhythm, adverb type, adverb length) and language-external factors (i.e. time, age, sex, geography) jointly shape the choice to split the infinitive in this linguistic style of PhE.

Flexible work arrangements, such as teleworking, have gained massive and unprecedented usage for creating work environments that foster well-being and productivity. Yet empirical evidence is still scant and not much is known about the role of organizational climate(s) in this process. Accordingly, the present study was set out to investigate the mediating mechanisms linking flexible teleworking to scientific productivity by considering climate for well-being dimensions, the climates for excellence and for innovation, and eudaemonic well-being as mediating constructs. Data were collected from 358 members of 48 Spanish European Research Council (ERC) granted teams and analyses were conducted both at the individual and team level, after checking for the relevant aggregation indexes. Relevant and significant relations were found within the hypothesized statistical model both at the individual and team level of analysis. The climate dimension of team support and the climate for innovation, together with eudaimonic well-being, resulted to be linked by significant relationships suggesting a potential mediating path. Also, empirical evidence supported considering gender as a control variable for the relationship between flexible teleworking and the climate dimension of work-life balance. In conclusion, climate variables and eudaimonic well-being represent relevant variables for the explanation of the relationship between flexible teleworking and scientific productivity. Practical and theoretical implications, and limitations are further discussed in the article.

What role did urban machines play in national politics during the New Deal? To what extent did they serve as facilitators in a local-national patronage system, converting the flow of federal funds into their cities into votes for federal Democratic candidates? To answer these questions, we bring together data on urban machines and work relief spending, the New Deal programs that received the most public and political scorn for their supposed patronage uses. Despite long-standing claims that Franklin D. Roosevelt and other New Dealers funneled extra work relief funds to urban machines, and that machines converted those funds into votes for the national Democratic Party, we find little evidence of this exchange relationship. Machines did not receive a disproportionate share of work relief funds, but they did see large influxes of federal funds, just like other cities with high levels of economic need. And yet, based on two-way fixed effects models and synthetic control analyses, we find no evidence that they succeeded at using those funds to turn out votes for President Roosevelt. We find evidence for just one dimension of a local-national patronage system: Democratic Senate candidates did see larger increases in vote share in machine counties versus non-machine counties with similar increases in work relief expenditures.

We estimated the extent of respiratory virus transmission over three pre-COVID-19 seasons. Of 16,273 assays, 22.9% (3,726) detected ≥1 respiratory virus. The frequency of putatively hospital-acquired infection ranged from 6.9% (influenza A/B) to 24.7% (adenovirus). The 176 clusters were most commonly associated with rhinovirus/enterovirus (70) and influenza A/B (62).

We investigate whether chief financial officers (CFOs) serving on U.S. corporate boards benefit shareholders in M&A transactions. We find that acquisitions made by firms with CFOs on boards have significantly better acquirer announcement returns. This is due to the CFO director’s ability to select targets with better strategic and financial fit. CFO board membership can create shareholder value if there are effective governance regimes restraining managerial entrenchment and CFOs’ interests are closely aligned with those of shareholders through equity ownership. Furthermore, sitting on boards enables CFOs to secure more and cheaper financing for their acquisitions.

Attending the annual HES conferences is a fantastic learning experience. In this personal testimony I try to explain the reasons for this enthusiasm, around three fundamental aspects: the innovations and changes in the historiographical field of the history of economics, the informal governance of a dynamic community, and the relevance of methodological pluralism as a guide for research development.