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The ability to efficiently complete everyday tasks was evaluated with a novel, performance-based test called the Virtual Kitchen Challenge (VKC) in college athletes. Analyses focused on the effect of practice and associations between the VKC and conventional measures of cognition.
Method:
81 college athletes with and without self-reported concussion completed conventional cognitive tests and the VKC, a nonimmersive virtual-reality task that requires manipulating virtual objects on a touch screen to prepare a breakfast and lunch under two conditions: 1) Training condition with feedback and 2) Test condition without feedback. VKC performance was scored for completion time, percent of time working on-screen, number of interactions with target and distractor objects. Paired t-tests compared VKC Training and Test conditions, correlations examined relations between VKC performance and cognitive tests.
Results:
VKC performance was significantly better after practice, as noted by faster completion time, fewer screen interactions, and a higher proportion of time spent on-screen during Test vs. Training conditions. Interactions with distractors were too infrequent for analyses. Correlations showed VKC Training was associated with episodic memory abilities whereas VKC Test scores were associated with executive function. VKC scores did not differ between participants with versus without concussion.
Conclusions:
The VKC is a promising portable performance-based measure of subtle functional difficulties for young, high-functioning participants. The VKC automated scoring makes it highly efficient for large studies and clinical settings.
This research note presents a new dataset of comparable and consistently defined series on wage inequality in manufacturing in Argentina, Brazil, Chile, Colombia, Mexico, and Venezuela (LA6) from 1920 to 2011. There are also series of unskilled labor with a wider sectoral coverage. This resource provides sufficient data to inform us about trajectories and turning points across distinct developmental epochs. Overall, the evidence shows a steady rise in inter-industry wage inequality since c.1960 in Argentina, Brazil, and Mexico and later in the rest. Additionally, a decline in white-collar premiums across the LA6 during state-led industrialization, followed by rising trends in the decades of export-led growth, and a reversal in the 2010s. Similar contrasting trends are observed in the wage dispersion of unskilled labor.
The 20th biennial conference of the International Planning History Society (IPHS) was held in Hong Kong, China. Through a comprehensive analysis of the keynote speeches, panel presentations, roundtable discussions, excursions and IPHS awards, this report highlights key insights from the conference that are especially relevant to urban historians. It suggests that planning history not only acts as a tool for informing urban strategies but also offers critical perspectives on socio-political, environmental, and cultural dimensions of urban transformation. The report presents three key insights for urban historians: (1) the entangled planning histories of Hong Kong and Shenzhen reflect broader political, ideological and international ambitions of dominant powers; (2) the evolution of environmental histories when rethinking human–natural relations in urban transition; and (3) the emerging attention to marginalized voices and alternative archives to enrich dominant planning narratives. These together demonstrate how planning history offers a critical historiographical lens for interpreting urban transformation.
ASMR (Autonomous Sensory Meridian Response) names a mysteriously relaxing tingling sensation certain people experience in response to a range of stimuli, including the close, careful attention of others. Since 2010, a form of roleplay video has developed in which the performer addresses the camera/viewer in the guise of a medical or service professional. These relaxing enactments evoke fictional workplaces, raising questions about precarious and exploited labor in a globalized digital economy.
The results of a ground-penetrating radar survey and multiproxy studies of the sediment cores collected from two lakes in the Valdai Highlands (East European Plain) provide new insights into the late glacial and Holocene environmental history of the region situated in the marginal zone of the last Scandinavian ice sheet. The cores were analyzed for organic carbon and nitrogen content, as well as for pollen and diatoms. The chronology of the cores is based on radiocarbon dates and pollen-based stratigraphy. The studied records document that vast dead ice masses and associated ice-dammed lakes existed in the Valdai Highlands area until ∼14 cal ka BP. Open tundra-steppe communities dominated the study area during the Oldest Dryas, Bølling, and Older Dryas (between ca. 17 and 14 cal ka BP), but dwarf birch (Betula nana), shrub alder (Alnus fruticosa), and willow (Salix) were also common. Scots pine forest (Pinus sylvestris) became common for a short interval during the Bølling warming (ca. 14.9 and 14.4 cal ka BP). The appearance of spruce (Picea) forest in the landscape occurred in the beginning of the Allerød warming (∼14 cal ka BP), but the open steppe-like plant communities remained common until the onset of the Holocene. The modern lake systems emerged at ∼10 cal ka BP, marked by an onset of organic-type sedimentation and the appearance of modern-type forests. The Mid-Holocene (∼8–4 cal ka BP) was the warmest time, as documented by the maximal distribution of temperate and broadleaved taxa in the region. The onset of agricultural land use and simultaneous trend of increasing lake trophic state and increasing paludification in the area is recorded at ∼2.5 cal ka BP.
This study examines whether Americans are more supportive of immigration when migrants share their partisan preferences. To address this question, we embedded a preregistered experiment in a nationally representative survey that was fielded the week before the 2024 US Presidential Election. The main experimental treatment provided information that some immigrant groups tend to favor Donald Trump and the Republican Party. This information reduced support for immigration among Democrats and increased support for immigration among Republicans. Our findings suggest that immigrants’ political identities impact public support for immigration. They also suggest that Trump’s apparent gains among immigrant voters in the 2024 election have the potential to reduce partisan polarization over immigration in the future.
It was found that a significant number of patients with major depressive disorder (MDD) did not respond to the treatment, leading to high ongoing costs and disease burden. The main objective of this study was to find neurobiological indicators that can predict the effectiveness of antidepressant treatment using diffusion tensor imaging (DTI). A group of 103 patients who were experiencing their first episode of MDD were included in the study. After 2 weeks of SSRI treatment, the group of patients was split into two categories: ineffectiveand effective. The FMRIB Software Library (FSL) was used for diffusion data preprocessing to obtain tensor-based parameters such as FA, MD, AD, and RD. Tract-Based Spatial Statistical (TBSS) voxel-wise statistical analysis of the tensor-based parameters was carried out using the TBSS procedure in FSL. We conducted an investigation to determine if there were notable variations in neuroimaging attributes among the three groups. Compared to HC, the effective group showed significantly higher AD and MD values in the left CgH. Correlating neuroimaging characteristics and clinical manifestations revealed a significant positive correlation between CgH-l FA and clinical 2-week HAMD-17 total scores and a significant positive correlation between CgH-r FA and clinical 2-week HAMD-17 total scores. Functional damage to the cingulum bundle in the hippocampal region may predispose patients to MDD and predict antidepressant treatment outcomes. More extensive multicenter investigations are necessary to validate these MRI findings that indicate treatment effectiveness and assess their potential significance in practical therapeutic decision-making.
This article considers the common law offences of blasphemy and blasphemous libel; the development of the Law Commission’s recommendations on offences against religion and public worship in 1985 (which ultimately led to the abolition of the offences of blasphemy and blasphemous libel in England and Wales in 2008); and proposals from various international bodies which now argue for similar reform.
This paper studies a long-standing problem of risk exchange and optimal resource allocation among multiple entities in a continuous-time pure risk-exchange economy. We establish a novel risk exchange mechanism that allows entities to share and transfer risks dynamically over time. To achieve Pareto optimality, we formulate the problem as a stochastic control problem and derive explicit solutions for the optimal investment, consumption, and risk exchange strategies using a martingale method. To highlight practical applications of the solution to the proposed problem, we apply our results to a target benefit pension plan, featuring the potential benefits of risk sharing within this pension system. Numerical examples show the sensitivity of investment portfolios, the adjustment item, and allocation ratios to specific parameters. It is observed that an increase in the aggregate endowment process results in a rise in the adjustment item. Furthermore, the allocation ratios exhibit a positive correlation with the weights of the agents.
An archaeological investigation at the western margin of the Cordillera de la Sal Formation in Catarpe (San Pedro de Atacama, northern Chile), revealed a series of pyrometallurgical furnaces from the Late period (AD 1400–1536). The furnaces, found at the Catarpe Túnel archaeological site, were used to reduce atacamite, clinoatacamite, brochantite, chrysocolla, and azurite to obtain unalloyed copper prills. Exceptional for the Atacama oasis and salt flats, Catarpe Túnel represents the only major archaeometallurgical site recorded in the area. Archaeometric analysis has determined the type of ore smelted, the composition of the metallic copper produced, and the characteristics of the fuel used by the operations. Although these operations are typical of the local metallurgical tradition, their proximity to a documented section of the Qhapaq Ñan and the Inka administrative center of Catarpe Este led us to wonder about the possible Tawantinsuyu influence in the region.
Banking supervisors rely on a set of indicators, such as the credit-to-Gross Domestic Product (GDP) gap, to evaluate the macro-financial environment and implement the countercyclical capital buffer. This paper proposes two supplementary indicators, based on forecast-based measures of the credit-to-GDP gap: forecast-augmented credit-to-GDP gaps and predicted credit-to-GDP gaps. While the former has already attracted attention from some banking supervisors, the latter represents a novel metric introduced here. These gaps are generated using singular spectrum analysis. We show that forecasting performance varies between countries and depends on credit market conditions. Furthermore, our results indicate that forecast-based credit-to-GDP gaps are effective in predicting the early stages of a credit boom.
Abdel-Hakim Ourghi's Reform of Islam is an open indictment of prevailing conservative Islam which insists on the absolute subjugation of the body and mind of all Muslims.
The author seeks a humanist understanding of Islam and aims to interpret Islam in today's terms. He argues against the historical alienation and transfiguration that still shape the collective consciousness of Muslims in the twenty-first Century. Using critical analysis and logic, the author aims to reveal the true core of Islam.
Ourghi's 40 Theses include: (i) The freedom of the individual to interpret the Qur'an; (ii) No scholars as mediators between God and man; (iii) Islam does not claim to possess the absolute truth; (iv) The women of Islam must rise up since their tormentors will not liberate them; (v) Only a reformed and open Islam is a religion of peace; (vi) The Qur'an as the basis of a contemporary humanist ethics.
The notion of 'rentier mentality' has haunted the literature on the Gulf States for almost 40 years now. However, few studies have actually provided insight into how the nationals themselves perceive their career motivators, employability and productivity. The eleven studies of this book present both empirical findings and case studies that reveal what nationals expect from their workplace and what hinders them from a personal, meaningful contribution. While it seems that an initially high work motivation is often annihilated by structural impediments such as a strong hierarchy or widespread wasta, it also seems that many nationals fail to understand the urgent requirements of the GCC labour markets.
A long-standing economic policy goal of the oil-dependent states of the Gulf Cooperation Council is to increase economic diversification. Over the last decades, GCC governments fostered the development of non-oil economies through large-scale public investments in the stocks of human and physical capital.
This book takes a new look at economic diversification efforts by examining the impact of different public expenditure categories (capital, education, health) on non-oil GDP and labour productivity developments in the three GCC countries Bahrain, Oman and Qatar since the 1970s. Building both on an econometric analysis and detailed country studies, this book analyses not only whether public expenditure has been an important driver of overall non-oil economic growth but also how public expenditure impacted different potential sources of non-oil economic growth such as economy-wide investment or productivity levels.
By elaborating the channels through which public expenditure tends to impact non-oil economic growth in Bahrain, Oman and Qatar, this book contributes to the academic and public debate about the effectiveness of ongoing diversification strategies in the GCC countries.
This volume provides a discussion of the works of Muhammad ibn Jarir al-?abari (d. 932 CE), the greatest historian of the early Islamic world. An international team of well-known scholars examine the life of the man, his work, the sources he used and his intellectual legacy.
Grouped around four major themes - Caliphate and power, economy and society, Abbasids, and frontiers and the others - the contributions deal with the history, archaeology, architecture and literature of the Middle East, North Africa and beyond, from the time of the Prophet until the fifteenth century.
It is difficult to say whether we should treat him as an author or as an editor, repackaging earlier works, all fully acknowledged. What were his biases and prejudices? Was he a propagandist for the reigning Abbasid dynasty or simply a passer on of the traditions he found? This volume, bringing together some of the most eminent scholars of early Arabic historiography, is the first attempt to answer some of these questions and it will be of fundamental importance to anyone interested in the early Islamic world or in comparative historiography.
A detailed examination of traditions about Muhammad which illustrate particular themes thought to be part of the biblical prophetic paradigm: attestation, preparation, the experience of revelation, persecution, and 'salvation,' this last meaning the hijra. The author analyzes the ways in which Muhammad's early biographers sought to shape the Prophet's biography through biblically based, and later Qur'anic, modes of authentication.
The author has abandoned the quest for the historical Muhammad because of the impossibility of separating the 'real' Muhammad from legends about him. He challenges the notion that earlier traditions about Muhammad are more authentic than later ones, arguing that the molding of accounts of Muhammad's life according to what were perceived as standard criteria of prophethood began at the outset, as Muslims sought to prove themselves worthy successors to the civilizations of the Jews and the Christians.