Miracle-dz/UniFAR-FTUs huggingface dataset:
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Coliiformes (mousebirds) are represented by just six extant species. These species, restricted to sub-Saharan Africa, are all primarily frugivorous and are among the most sedentary of living birds. Previously described fossil Coliiformes preserving feather traces share the short, rounded wing shape of extant mousebirds. Along with osteological evidence, these observations have been proposed to support poor sustained flight capabilities across the stem mousebird lineage. We report a new species of Coliiformes from the early Eocene (51.66 ± 0.09 Ma) Fossil Butte Member of the Green River Formation, represented by one of the comparatively few fossils from these deposits preserving carbonized traces of the wing and tail feathering. Feather traces indicate an elongate, tapering wing shape similar to that of some extant aerial insectivores, and suggestive of a capacity for sustained and agile open-air flight. Traces of the rectrices reveal the tail accounted for approximately two-thirds of the total length of the bird, a proportion similar to that in living mousebirds. Phylogenetic analysis places the new species as a stem representative of Coliiformes, demonstrating for the first time that the two major clades of Coliiformes – Sandcoleidae and Colii – co-occurred at Fossil Lake. Based on the recovered phylogeny, as well as the osteology and feathering of extant and fossil Coliiformes, the wing shape of the new species is interpreted as apomorphic. In addition to documenting unexpected morphological specialization within stem-lineage Coliiformes, the new species adds yet another taxon to the emerging reconstruction of the diverse Paleogene avifauna from the tightly dated and nearly synchronous fossiliferous deposits of the Fossil Butte Member.
Momentum Strategies in the Portuguese Stock Market

Over the last decades, the Efficient Market Hypothesis (EMH) has been one of the dominant topics in financial research literature. Inspired by cognitive psychology studies, “overreaction” and “underreaction” are one of the most important challenges to the EMH. The main purpose of our study is to explore the existence of return continuation in the Portuguese Stock Market, thus investigating its efficiency at the weak form level (Fama, 1970). We demonstrate that strategies which buy stocks that have performed well in the past and sell stocks that have poor performances previously – momentum strategies – can generate significant positive returns over three to twelve months holding periods. As in Jegadeesh and Titman (1993), we found that the profitability of momentum strategies is not satisfactorily justified by delayed stock price reactions. When comparing the momentum strategy profits with the profitability of the equally weighted market portfolio, we verified that it is possible to obtain higher returns through this relative strength strategy. We also analyze the momentum profits over long horizons. In this matter, our results seem to support the underreaction hypothesis, but our outcomes are not conclusive, since there is no sufficient statistic evidence.
Developing soft skills (also known as pervasive skills): Usefulness of an educational game

Purpose The purpose of this paper is to evaluate the usefulness of an educational game to develop soft skills (also known as pervasive skills), from the perspectives of three groups of role-players (student participants, student committee members and employer companies). The game was designed to provide students with the opportunity to develop soft skills and to determine whether students applied the pervasive skills required by the South African Institute of Chartered Accountants. Design/methodology/approach Action research was conducted according to a parallel convergent mixed-method research design. Both qualitative and quantitative data were gathered using questionnaires and focus group interviews to determine the usefulness of the educational game. Findings All three groups perceived the educational game to be effective in requiring students to apply the full spectrum of soft/pervasive skills. Although all the pervasive skills were perceived to be present in the game, teamwork, communication (listening and verbal) and time management skills were perceived to be most prominent, while written communication, professionalism and ethical awareness were found to be less prominent. Overall, this game can be recommended as an effective and innovative teaching method that can positively contribute to the pervasive skills development of accounting students. Originality/value The need to deliver well-rounded accounting graduates demonstrating core technical and soft skills (or pervasive skills and competencies) calls for new and innovative teaching methods. Accounting educators and programmes are continuously challenged regarding which methods to apply to meet these outcomes and substantiate their usefulness.
Illicit Flirtations: Labor, Migration, and Sex Trafficking in Tokyo

In 2004, the U.S. State Department declared Filipina hostesses in Japan the largest group of sex trafficked persons in the world. Since receiving this global attention, the number of hostesses entering Japan has dropped by nearly 90 percent-from more than 80,000 in 2004 to just over 8,000 today. To some, this might suggest a victory for the global anti-trafficking campaign, but Rhacel Parrenas counters that this drastic decline-which stripped thousands of migrants of their livelihoods-is in truth a setback. Parrenas worked alongside hostesses in a working-class club in Tokyo's red-light district, serving drinks, singing karaoke, and entertaining her customers, including members of the yakuza, the Japanese crime syndicate. While the common assumption has been that these hostess bars are hotbeds of sexual trafficking, Parrenas quickly discovered a different world of working migrant women, there by choice, and, most importantly, where none were coerced into prostitution. But this is not to say that the hostesses were not vulnerable in other ways. Illicit Flirtations challenges our understandings of human trafficking and calls into question the U.S. policy to broadly label these women as sex trafficked. It highlights how in imposing top-down legal constraints to solve the perceived problems-including laws that push dependence on migrant brokers, guest worker policies that bind migrants to an employer, marriage laws that limit the integration of migrants, and measures that criminalize undocumented migrants-many women become more vulnerable to exploitation, not less. It is not the jobs themselves, but the regulation that makes migrants susceptible to trafficking. If we are to end the exploitation of people, we first need to understand the actual experiences of migrants, not rest on global policy statements. This book gives a long overdue look into the real world of those labeled as trafficked.
Induced ER Stress and Enhanced Caspase 12 Cleavage in Human Neuroblastoma SH-SY 5 Y Cells at Low Nonexcitotoxic Concentrations

The cyanobacterial β-N-methylamino-l-alanine (l-BMAA) is described as a low-potency excitotoxin, possibly a factor in the increased incidence of amyotrophic lateral sclerosis (ALS) and Parkinsonism-dementia complex (PDC) in Guam. The latter association is intensively disputed, as l-BMAA concentrations required for toxic effects exceed those assumed to occur via food. The question thus was raised whether l-BMAA leads to neurodegeneration at nonexcitotoxic conditions. Using human SH-SY5Y neuroblastoma cells, l-BMAA-transport, incorporation into proteins, and subsequent impairment of cellular protein homeostasis were investigated. Binding of l-BMAA to intracellular proteins, but no clear protein incorporation was detected in response to 14C-l-BMAA exposures. Nevertheless, low l-BMAA concentrations (≥ 0.1mM, 48 h) increased protein ubiquitination, 20S proteasomal and caspase 12 activity, expression of the endoplasmic reticulum (ER) stress marker CHOP, and enhanced phosphorylation of elf2α in SH-SY5Y cells. In contrast, high l-BMAA concentrations (≥ 1mM, 48 h) increased reactive oxygen species and protein oxidization, which were partially ameliorated by coincubation with vitamin E. l-BMAA-mediated cytotoxicity was observable 48 h following ≥ 2mM l-BMAA treatment. Consequently, the data presented here suggest that low l-BMAA concentrations result in a dysregulation of the cellular protein homeostasis with ensuing ER stress that is independent from high-concentration effects such as excitotoxicity and oxidative stress. Thus, the latter could be a contributing factor in the onset and slow progression of ALS/PDC in Guam.
Seasonal dynamics of threshold friction velocity and dust emission in Central Asia

An improved model representation of mineral dust cycle is critical to reducing the uncertainty of dust‐induced environmental and climatic impact. Here we present a mesoscale model study of the seasonal dust activity in the semiarid drylands of Central Asia, focusing on the effects of wind speed, soil moisture, surface roughness heterogeneity, and vegetation phenology on the threshold friction velocity (u*t) and dust emission during the dust season of 1 March to 31 October 2001. The dust model WRF‐Chem‐DuMo allows us to examine the uncertainties in seasonal dust emissions due to the selection of dust emission scheme and soil grain size distribution data. To account for the vegetation effects on the u*t, we use the Moderate Resolution Imaging Spectroradiometer monthly normalized difference vegetation index to derive the dynamic surface roughness parameters required by the physically based dust schemes of Marticorena and Bergametti (1995, hereinafter MB) and Shao et al. (1996, hereinafter Shao). We find the springtime u*t is strongly enhanced by the roughness effects of temperate steppe and desert ephemeral plants and, to less extent, the binding effects of increased soil moisture. The u*t decreases as the aboveground biomass dies back and soil moisture depletes during summer. The u*t dynamics determines the dust seasonality by causing more summer dust emission, despite a higher frequency of strong winds during spring. Due to the presence of more erodible materials in the saltation diameter range of 60–200 µm, the dry‐sieved soil size distribution data lead to eight times more season‐total dust emission than the soil texture data, but with minor differences in the temporal distribution. On the other hand, the Shao scheme produces almost the same amount of season‐total dust emission as the MB scheme, but with a strong shift toward summer due to the strong sensitivity of the u*t to vegetation. By simply averaging the MB and Shao model experiments, we obtain a mean estimate (Exp_mean) of season‐total dust emission of 255.6 Mt (megaton), of which 26.8%, 50.4%, and 22.8% are produced in spring (March‐April‐May), summer (June‐July‐August), and autumn (September‐October), respectively. The Exp_mean estimate identifies the Ustyurt Plateau, dried seabed of Aral Sea (called Aralkum), Caspian Sea coast, and loess deserts as the strongest dust source areas in Central Asia. The spatial distribution and seasonality of the Exp_mean estimate are in general agreement with ground station dusty weather observations and satellite aerosol optical depth and absorbing aerosol index products. Compared to Cakmur et al. (2006), the Exp_mean estimate suggests Central Asia contributes 10–17% to the global dust emission in 2001.
Periodicity coding in the inferior colliculus of the cat. II. Topographical organization.

1. The topographical distributions of single-unit and multiple-unit responses to amplitude-modulated tones--and to other relevant parameters of simple tonal stimuli--were defined across the main frequency representational gradient and within narrow frequency ranges represented in "frequency band laminae" in the principal midbrain auditory nucleus, the central nucleus of the inferior colliculus (ICC), in adult, barbiturate-anesthetized cats. 2. Responses to amplitude-modulated tones with the carrier set at the characteristic frequency (CF) of recorded neurons were obtained at many ICC locations in each experiment. The best modulation frequency (BMF) of neurons was defined at each site as that modulation frequency producing the highest neural discharge rate. Encountered BMFs ranged from approximately 10 to 1,000 Hz. A significant range of BMFs were recorded for neurons with any given characteristic frequency. BMF ranges varied as a systematic function of CF and of ICC recording depth. 3. Recorded BMFs were distributed topographically within functionally defined ICC frequency band laminae. Highest BMFs were found clustered in an ICC sector roughly between the middle and lateral third of its frequency band laminae. Progressively lower BMFs were recorded with increasing distance across the laminae in any direction away from the highest-BMF cluster. That is, "iso-BMF contours" were arrayed concentrically around the highest-BMF region. 4. Within frequency band laminae centered at approximately 3 and 12 kHz, quality factors (Q10 dBS) of frequency tuning curves were found to be between 0.8 and 8. Q10 dB values were distributed topographically within given frequency band laminae. Responses with narrow tuning curves (high Q10 dB values) were clustered in the middle third of the mediolateral extent of laminae; sharpness of tuning declined systematically away from this focus of highest Q10 dB values. The center of this distribution did not coincide with the center of the BMF distribution within the same lamina. 5. For neurons at greater than 90% of the ICC loci studied in these experiments, onset latencies to CF tones defined approximately 60 dB above response threshold fell within a range between 5 and 18 ms. Across a given frequency band lamina, onset latencies varied systematically, with longest response latencies recorded medially, and progressively shorter latencies recorded progressively more laterally. 6. Binaural interaction types were systematically distributed within frequency-band laminae. A cluster of excitatory-excitatory (EE) was seen, covering approximately one-third of the mapped area. (ABSTRACT TRUNCATED AT 400 WORDS)
Trade Secrets and Innovation: Evidence from the 'Inevitable Disclosure' Doctrine

Research Summary: Does heightened employer‐friendly trade secrecy protection help or hinder innovation? By examining U.S. state‐level legal adoption of a doctrine allowing employers to curtail inventor mobility if the employee would “inevitably disclose” trade secrets, we investigate the impact of a shifting trade secrecy regime on individual‐level patenting outcomes. Using a difference‐in‐differences design taking unaffected U.S. inventors as the comparison group, we find strengthening employer‐friendly trade secrecy adversely affects innovation. We then investigate why. We do not find empirical support for diminished idea recombination from suppressed inventor mobility as the operative mechanism. While shifting intellectual property protection away from patenting into trade secrecy has some explanatory power, our results are consistent with reduced individual‐level incentives to signaling quality to the external labor market. Managerial Summary: While managers often list trade secrecy protection as their most important appropriation mechanism form and basis of competitive advantage (even more often than formal intellectual property protection), researchers have a hard time studying the effect of such secrets. We use a changing trade secrecy legal environment in some U.S. states (the introduction of the inevitable disclosure doctrine [IDD]) to study its effect on inventor‐level innovation. We find that a strengthened employer‐friendly trade secrecy regime adversely affects inventor‐level innovation. While part of the effect is due to substituting trade secrecy protection for patents, we also find that inventors’ diminished external labor market prospects may dampen their innovation output. Consequently, while employers may wish for strengthened trade secrecy protections, the results may paradoxically be against their innovation interests.
Decentralization in education : an economic perspective

Evaluating decentralization in terms of three economic criteria - social efficiency, technical efficiency, and equity - the paper argues that some decisionmaking (about finance and teacher recruitment) should be provided for at the local level, and some (about school organization and curriculum) at the regional level. A system of central government grants should be used to correct problems of equity and inefficiency inherent in a decentralized system. Little is known about the economic and educational consequences of decentralization, despite a wide variety of country experiences. The effects of decentralization are difficult to isolate, so scholars have focused instead on issues of implementation.
Heliconius butterflies Genome-wide evidence for speciation with gene flow in Material Supplemental

Most speciation events probably occur gradually, without complete and immediate reproductive isolation, but the full extent of gene flow between diverging species has rarely been characterized on a genome-wide scale. Documenting the extent and timing of admixture between diverging species can clarify the role of geographic isolation in speciation. Here we use new methodology to quantify admixture at different stages of divergence in Heliconius butterflies, based on whole genome sequences of 31 individuals. Comparisons between sympatric and allopatric populations of H. melpomene, H. cydno and H. timareta revealed a genome-wide trend of increased shared variation in sympatry, indicative of pervasive interspecific gene flow. Up to 40% of 100 kb genomic windows clustered by geography rather than by species, demonstrating that a very substantial fraction of the genome has been shared between sympatric species. Analyses of genetic variation shared over different time intervals suggested that admixture between these species has continued since early in speciation. Alleles shared between species during recent time intervals displayed higher levels of linkage disequilibrium than those shared over longer time intervals, suggesting that this admixture took place at multiple points during divergence and is probably ongoing. The signal of admixture was significantly reduced around loci controlling divergent wing patterns, as well as throughout the Z chromosome, consistent with strong selection for Müllerian mimicry and with known Z-linked hybrid incompatibility. Overall these results show that species divergence can occur in the face of persistent and genome-wide admixture over long periods of time.
The Role of Alignment and IS Usage for Business Process Performance: An Empirical Survey among German Banks

There is still a lack of coherent theoretical explanations for why and how IT Business alignment (ITBA) influences process outcomes. This study draws on the knowledge-based theory to develop and test a process-level model that links different types of alignment and IS usage to process outcomes. While prior research has mostly focused on strategic alignment, we posit that the implementation of strategies into an operational process also is important to achieve beneficial outcomes. Therefore, we investigate the impact of ITBA on performance at a process-level of analysis. Additionally, we propose that business-internal alignment is an important construct contributing to the explanation of performance. Furthermore, we include IS usage and business skills to encompass further essential resources of the business process. Testing the model using data from 136 banks shows that ITBA and business-internal alignment have direct and positive effects on performance at the process level. Furthermore, IS usage and business skills proved to have significant effects on process performance. Overall, the result contribute to the IT value creation debate by empirically showing the effect of alignment and IS usage on a process level and by revealing the role of businessinternal alignment.
Has the Wage Phillips Curve Gone Dormant

Although the labor market has steadily strengthened, wage growth has remained slow in recent years. This raises the question of whether the wage Phillips curve? the traditional relationship between labor market slack and wage growth? has weakened. Estimating a causal link from slack to wage growth using national data is difficult. However, using city-level data over the past 25 years shows that the cross-city relationship has weakened since the Great Recession. Explanations consistent with this timing suggest that the Phillips curve may return to a steeper curve in the future.
Influence of passion on innovative behavior: An empirical examination in Peoples Republic of China

Passion plays an important role in innovation, but theoretical understanding of what it does is lacking. The study proposes a model of two types of job passion, harmonious and obsessive passion, to employees’ innovative behavior, via the mediating mechanism of cognitive absorption and organization-based self-esteem (OBSE). Results from a survey conducted with 228 employees from 19 firms of China indicate that employees with harmonious passion have more innovative behavior at work, and that this relationship was mediated primarily by cognitive absorption and OBSE. However, even though obsessive passion was negatively related to OBSE, it did not have a significant relationship to cognitive absorption overall. The author identified and discussed research and practical implications for job passion and employees’ innovative behavior. Key words: Harmonious passion, obsessive passion, organization-based self-esteem, cognitive absorption, innovative behavior.
EVALUATING BODY IMAGE, PHYSICAL ACTIVITY AND TIME SINCE DISABILITY ONSET AS PREDICTORS OF PSYCHOLOGICAL ADJUSTMENT TO DISABILI

of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Arts in Education EVALUATING BODY IMAGE, PHYSICAL ACTIVITY AND TIME SINCE DISABILITY ONSET AS PREDICTORS OF PSYCHOLOGICAL ADJUSTMENT TO MOBILITY IMPAIRMENTS By Erica L. Byrnes December 2005 Chair: Sondra Smith-Adcock Major Department: Counselor Education Americans with disabilities are up to three times more likely to experience mental health illness than their able-bodied counterparts. This increased risk is additionally weighted with the dangers of comorbidity of mental health and disability. The relationship between disability and mental illness is dangerously cyclical; symptoms related to each illness are multiplied in the presence of symptoms of the opposing illness. In order to appropriately understand psychological adjustment to mobility impairments, this construct was examined through the lens of Wallander and Varni’s multivariate theoretical model of adjustment to disability. The primary goal of this research was to evaluate type of disability, self-esteem, body image, physical activity and time since disability onset as predictors of adjustment to disability using the multivariate framework established by Wallander and Varni. The relationship between each predictor variable and psychological adjustment outcome measures (depression and anxiety) was assessed. A regression model including all of the