Miracle-dz/UniFAR-FTUs huggingface dataset:
Development of orientation preference in the mammalian visual cortex.

Recent experiments have studied the development of orientation selectivity in normal animals, visually deprived animals, and animals where patterns of neuronal activity have been altered. Results of these experiments indicate that orientation tuning appears very early in development, and that normal patterns of activity are necessary for its normal development. Visual experience is not needed for early development of orientation, but is crucial for maintaining orientation selectivity. Neuronal activity and vision thus seem to play similar roles in the development of orientation selectivity as they do in the development of eye-specific segregation in the visual system.
a waste of time : How portfolio construction can support student learning from project-based experiences

In this work, we sought to understand ways that students experienced a small-scale portfolio assignment provided to them as an opportunity to reflect on their experiences in a project-based class. This work was motivated by research in various instructional contexts showing that portfolio construction results in important learning outcomes. We wanted to see if such findings would extend to project-based learning situations in engineering. In addition, our research was motivated by the need to better understand specific portfolio assignments in terms of the effort required of students, the extent to which students value such assignments, and the ways in which students’ overall experiences differ in terms of learning, effort, and value. To address these issues, we interviewed thirteen students who completed a portfolio assignment as a culminating activity for a project-based manufacturing class. We selected these students because their individual responses to a screening survey suggested that they had very different experiences with the portfolio assignment. We then conducted open-ended interviews with the students in order to better understand their experiences. In this paper, we show how the themes of epistemically different, manageably effortful, and ultimately valuable can be used to understand three ways of experiencing the assignment (as a significant experience, a muted experience, and a limited experience). This work provides practical information to educators interested in supporting reflection while also contributing to the scholarship on how portfolios support learning from experience.
When Life Gives You Lemons: How rating scales affect user activity and frustration in collaborative evaluation processes

Initiators of open innovation processes involving customers or employees often face vast amounts of idea proposals. These proposals vary greatly in terms of quality, which is why organizers often engage the users themselves in the evaluation process. Building on the concept of information overload, we evaluate the effects of three distinct rating scales on users’ activity and frustration measures. On the basis of an open innovation campaign for employees of a public-private institution in Germany, we systematically compare the novel “bag of lemons” method with conventional Likert scales and up-downvoting schemes. Our results demonstrate that the “bag of lemons”-approach yields higher levels of user activity, but is also perceived as significantly more frustrating. We find this effect to be fully mediated by perceived information overload, which points to potential avenues for the design of stimulating yet tolerably complex Information Systems for open innovation and rating
Real Exchange Rates in the Developing Countries: Concepts and Measure- Ment

This paper deals with three important issues related to real exchange rates. First, it discusses the analytical concept of real exchange rate (RER) placing particular emphasis on providing an operational definition for the equilibrium real exchange rate. Of course, once this concept is defined we can begin to discuss in a meaningful way what we mean by real exchange rate misalignment, or deviations of the actual RER from its equilibrium value. Second, this paper deals with problems associated with measuring real exchange rates. Several proposals are analyzed and the more serious problems encountered when attempting to compute RER's in the developing countries are discussed. And third, I analyze the actual behavior of RER's in a number of developing countries. Here, issues related to the behavior of alternative indexes and to the statistical properties of real exchange rates are emphasized. Additionally, I study the real consequences of increased real exchange rate volatility.
The politics and economics of regional transfers

Which programmes of income redistribution across jurisdictions are likely to be chosen in democratic countries and why? How does the degree of government centralization affect these choices? How does redistribution of income across regions interact with the migration of factors of production? Do these processes reinforce or do they obstruct each other, and why? This book tries to answer these questions and others related to the issue of income redistribution across states and regions.
The effect of financialization on labor's share of income

Numerous studies have analyzed the decline in labor's share of income, but only few have linked it to the increase in financialization. The process of financialization can roughly be described as an increasing importance of the financial sector which had an impact on the distribution between wages and profits on the one hand, and retained earnings and financial income in the form of dividends and interests on the other hand. This paper seeks to explore the relationship between financialization and labor's share of income using a time-series cross-section data set of 13 countries over the time period from 1986 until 2007. The results suggest that there is indeed a relationship between increasing dividend and interest payments of non-financial corporations and the decline of the share of wages in national income. Other factors that can be accounted for the decline relate to globalization and a decrease in the bargaining power of labor.
Performance of Socially Responsible Portfolios - Do Economic Conditions Matter?

In a first of its kind, this paper examines the performance of various socially responsible stocks portfolios as compared to general stocks portfolios and market portfolio using return and various risk-adjusted measures over the period January 1996 – December 2013 and over different business economic conditions. Besides the conventional risk-adjusted measures, we have also used modified Sharpe ratio, double Sharpe ratio, M2 measure, alpha based on three factor Fama-French model and Fama’s decomposition measure. Further we have checked for the impact of economic conditions (recession or boom) on the alpha and slope coefficients. We have also examined whether single factor CAPM is sufficient to explain cross sectional variations across portfolios or we need a multi-factor model (like Fama-French three factor model). We find that despite having higher risk, socially responsible stocks portfolios generated significantly higher returns and hence outperformed other portfolios on the basis of all risk-adjusted measures as well as net selectivity returns during both recession and boom periods. The results uphold even with the use of Fama-French three factor model for estimating excess returns. The empirical results, besides augmenting the existing literature on performance evaluation, clearly indicate that investors in India have become more socially conscious as the stock market is rewarding socially responsible companies well in terms of higher returns (on risk adjusted basis). The study supports the view that socially responsible investing is boon for investors in India. Therefore, regulators, policy makers and mutual funds should construct and make available various socially responsible investment products to initiate the movement of socially responsible investing in India.
Traditional Periodization versus Optimum Training Load Applied to Soccer Players: Effects on Neuromuscular Abilities

Abstract It is unknown whether traditional periodization of strength-power training involving accumulation, transformation and realization blocks is superior to other simpler and more practical training schemes. The purpose of this study was thus to investigate changes in strength/power/speed characteristics of elite soccer players in response to either classic strength-power periodization (TSP) or optimum power load (OPL). 23 professional soccer players were randomly assigned to TSP or OPL for 6 weeks in-season regular training (3 times per week). TSP involved half squats or jump squats, depending on the respective training block, while OPL involved only jump squats at the optimum power load. Results revealed that both groups presented similar significant (P<0.05) improvements in squat one repetition maximum, squat and countermovement jump heights and change of direction speed. In addition, although both groups reported significant increases in sprinting speed (P<0.05); delta change scores demonstrated a superior effect of OPL to improve 10- and 20-m speed. Similarly, OPL presented greater delta change in mean propulsive power in the jump squat. Therefore, training continuously at the optimum power zone resulted in superior performance improvements compared to training under classic strength-power periodization.
Information and Price Dispersion on Net

Internet firms charge a wide range of prices for nearly homogeneous products and price dispersion vary significantly across markets. This study is an attempt to explain different levels of price dispersion across online product markets. We found price dispersion vary systematically with the number of firms offering the product and the markets at which consumers are more informed have smaller price dispersion. Moreover prices charged by individual retailers decline as the number of retailers selling the same product rise.
A Prospective Single-Blind Randomized Controlled Study of use of Hyaluronic Acid Nasal Packs in Patients after Endoscopic Sinus Surgery

Background The aim of this study was to determine whether there was any benefit or detrimental consequences of placing a hyaluronic acid pack (Merogel) into the middle meatus after endoscopic sinus surgery (ESS). Methods A randomized controlled blinded study was performed in 42 patients with chronic sinusitis undergoing ESS. The patients were randomized to receive Merogel on one side and no packing on the other side. Patients were assessed at 2, 4, and 6–8 weeks after surgery and the presence of synechia, edema, and infection was noted with the observer blinded to the side that had received the Merogel. Results At 2 weeks the side packed with Merogel had 35% synechiae, 83% edema, and 30% mucopurulent discharge and on the control side the figures were similar with 22.5% synechiae, 83% edema, and 28% mucopurulent discharge. In both groups these figures improved over the observation period but percentages in the groups remained similar. At no time point was the difference between the packed and unpacked sides statistically significant for any of the measures when assessed with Fisher's exact test. Conclusion Merogel nasal packing has no significant beneficial or detrimental effect in terms of synechia, edema, or infection when placed in the middle meatus after ESS.
Transfer of Labour‐Management Partnership in Multinational Companies

There has been a growing interest in how multinational corporations transfer various management practices from one country to another. The positions vary from an extreme where all practices will become globally standardised; to claims that the local context will be a decisive factor. In this article, the research question is why an MNC would want to transfer the partnership practice and what the key elements to success might be. As pointed to, partnership is a part of the company's business system, the way they are used to operating. Also important is that the risk of failing in terms of technological issues was important, and thus commitment and cooperation are crucial. Success can be understood by their effort to reduce the institutional distance as much as possible, including the choice of location, hiring policy emphasis on education and training, the strategy of building strong connections to the senior shop steward.
Barriers to Health Promotion in Community Dwelling Elders

As the number of elders who live in the community increases, promoting their health and independence is a priority of nursing care. As suggested in the Health Promotion Model, barriers can impede the practice of health promotionn. In this descriptive correlational study, community-dwelling elders 65 and older were recruited (N=141) to examine the relationship between attentional demands as measured by the Attentional Demands Survey and health promotion. The results indicate that attentional demands may act as barriers, reducing elders' ability to engage in health promotion. Community health nurses can focus care toward reducing attentional demands and improving health promotion.
Understanding differences in alcohol consumption and depressed mood between U.S.- and foreign-born Asian and Caucasian college students

ABSTRACT The number and proportion of foreign-born individuals in the U.S. population has increased in recent decades. From 1970 to 2007, the foreign-born population more than tripled to approximately 37 million (U.S. Census Bureau, 1997, 2008). Foreign-born students are a key subpopulation of college students. About 23% of U.S. undergraduate college students in 2007–2008 were either born outside of the United States (10%) or were children of at least one first-generation immigrant parent (13%; National Center for Education Statistics, U.S. Department of Education [NCES], 2012). Asian students constitute the majority (30%) of foreign-born undergraduates. Although foreign-born Asian students compose nearly one-quarter of the college population, limited research has examined how rates of alcohol use and depression differ between foreign-born and U.S.-born Asian college students (Gonzalez, Reynolds, & Skewes, 2011; Ralston & Palfai, 2012). The limited research is worrisome given their increasing rates of college enrollment (U.S. Census Bureau, 2011), alcohol consumption (Aud, Fox, & KewalRamani, 2010), alcohol abuse and dependence (Grant et al., 2004), and underutilization of mental health services (U.S. Department of Health and Human Services, 2001). Collectively, these factors point to the need for further research tailored to Asian college drinkers.
Recollection rejection: false-memory editing in children and adults.

Mechanisms for editing false events out of memory reports have fundamental implications for theories of false memory and for best practice in applied domains in which false reports must be minimized (e.g., forensic psychological interviews, sworn testimony). A mechanism posited in fuzzy-trace theory, recollection rejection, is considered. A process analysis of false-memory editing is presented, which assumes that false-but-gist-consistent events (e.g., the word SOFA, when the word COUCH was experienced) sometimes cue the retrieval of verbatim traces of the corresponding true events (COUCH), generating mismatches that counteract the high familiarity of false-but-gist-consistent events. Empirical support comes from 2 qualitative phenomena: recollective suppression of semantic false memory and inverted-U relations between retrieval time and semantic false memory. Further support comes from 2 quantitative methodologies: conjoint recognition and receiver operating characteristics. The analysis also predicts a novel false-memory phenomenon (erroneous recollection rejection), in which true events are inappropriately edited out of memory reports.
International Transmission Via Trade Links: Theoretically Consistent Indicators of Interdependence for Latin America and South-East Asia

The empirical work on the role of trade linkages in the transmission of economic disturbances has been limited to tests on the significance of variables of simple trade shares of partners, both bilateral and in common markets. This approach ignores additional elements deriving from the new open economy macroeconomics, such as country size, the pricing policy of exporters and the substitutability of exports. It also only considers the i? ½first victimi? ½ country as the one transmitting the crisis to the others, leaving out the action of all other intra-regional links. This paper bridges this gap by producing theoretically-backed indicators of vulnerability due to trade linkages in a multilateral setting. These indicators are then used to compare the size of trade linkages in Latin America and in South-east Asia, two regions that were affected by financial crises in the 1990s. The proposed indexes show that Latin America is much less vulnerable than Asia to an international transmission of economic disturbances from a country in the same region. This is due to the relatively smaller size of Latin American countries, to the higher share of raw materials in their exports and the lower degree of similarity both of the manufactures exported inside their region and of those exported to their common industrial markets. Moreover, South-east Asian countries are more likely than Latin American ones to transmit economic disturbances to industrial countries due to the higher substitutability of their manufactured exports with those of more advanced economies.
Performance Analysis of Vertical Handover Algorithm Based on Expected WLAN Lifetime

The widespread deployment of Wireless Local Area Networks (WLAN) over the last decade, and advances in wireless access technologies, have endowed handheld mobile terminals (MT) with multimodal connectivity features. Multimodal MTs can now switch interfaces between the WLAN and the cellular network, and select their network of choice in real-time. In order to exploit the heterogeneity of the wireless environment, MTs require efficient vertical handover (VH) algorithms. In this paper, we present an analytical method of evaluating VH algorithm performance for mobile voice users over heterogeneous environments. An algorithm that computes the expected WLAN-lifetime of an MT, and uses it along with the Received Signal Strength Indicator (RSSI) in determining the appropriate handover instance, is analyzed. The average number of handovers per crossover of the WLAN border region, and the average bandwidth available to the MT, are analytically derived and compared to simulation results.
One Market, One Money, One Price? Price Dispersion in the European Union

The introduction of the euro was intended to integrate markets within Europe further, after the implementation of the 1992 Single Market Project. We examine the extent to which this objective has been achieved, by examining the degree of price dispersion between countries in the eurozone, compared to a control group of EU countries outside the eurozone. We also establish the role of exchange rate risk in hampering arbitrage by estimating the euro-effect for sub-groups within eurozone, utilising differences among EU countries in participating in the Exchange Rate Mechanism. Our results, in contrast with previous empirical research, suggest robustly that the euro has had a significant integrating effect.
Number detectors spontaneously emerge in a deep neural network designed for visual object recognition

A deep neural network trained only on visual object recognition develops tuned number detectors reminiscent of real neurons. Humans and animals have a “number sense,” an innate capability to intuitively assess the number of visual items in a set, its numerosity. This capability implies that mechanisms to extract numerosity indwell the brain’s visual system, which is primarily concerned with visual object recognition. Here, we show that network units tuned to abstract numerosity, and therefore reminiscent of real number neurons, spontaneously emerge in a biologically inspired deep neural network that was merely trained on visual object recognition. These numerosity-tuned units underlay the network’s number discrimination performance that showed all the characteristics of human and animal number discriminations as predicted by the Weber-Fechner law. These findings explain the spontaneous emergence of the number sense based on mechanisms inherent to the visual system.
Patient and caregiver experiences on care transitions for adults with a hip fracture: a scoping review

Abstract Purpose: The purpose of this scoping review was to explore the literature on experiences and perspectives of patients with hip fractures and their caregivers during transitions in care. Methods: Seven databases were searched for studies published between 1 January 2000 and 3 July 2018. Grey literature was also searched. Results: Eleven articles met the inclusion criteria. The scoping review found that patients and caregivers encounter several challenges during care transitions including the following: lack of information sharing, role confusion and disorganized discharge planning. Common suggestions reported in the literature for improving care transitions were: increasing written communication, offering a patient representative role, using technology for knowledge dissemination and increasing geriatrician involvement. Conclusions: The results of this scoping review provide a useful foundation from which to build strategies to address challenges such as lack of information sharing, role confusion and disorganized discharge planning experienced by patients and caregivers during care transitions. Further research needs to explore the development of strategies to promote patient-centered care especially during discharge from an acute care facility. Implications for rehabilitation Encourage health care providers to collaborate with patients with hip fracture and caregivers on decision-making about rehabilitation and recovery goals, discharge planning and safe patient transfer. Assess the needs of patients with hip fracture and caregivers before, during and after a care transition to deliver patient and family-centered care across multiple care settings. Provide patients with hip fracture and caregivers standardized information-exchange tools to increase timely, accurate exchange of information during care transitions. Encourage formal discussions about roles and responsibilities in the transitions in care process among patients with hip fracture, caregivers and health care providers.
Effects of drop set resistance training on acute stress indicators and long-term muscle hypertrophy and strength.

BACKGROUND We investigated the effects of 2 different resistance training (RT) protocols on muscle hypertrophy and strength. The first group (N.=8) performed a single drop set (DS) and the second group (N.=8) performed 3 sets of conventional RT (normal set, NS). METHODS Eight young men in each group completed 6 weeks of RT. Muscle hypertrophy was assessed via magnetic resonance imaging (MRI) and strength via 12 repetition maximum tests before and after the 6 weeks. Acute stress markers such as muscle thickness (MT), blood lactate (BL), maximal voluntary contraction (MVC), heart rate (HR) and rating of perceived exertion (RPE) have been measured before and after one bout of RT. RESULTS Both groups showed significant increases in triceps muscle cross-sectional area (CSA) (10.0±3.7%, effect size (ES) =0.47 for DS and 5.1±2.1%, ES=0.25 for NS). Strength increased in both groups (16.1±12.1%, ES=0.88 for DS and 25.2±17.5%, ES=1.34 for NS). Acute pre/post measurements for one bout of RT showed significant changes in MT (18.3±5.8%, P<0.001) and MVC (-13.3±7.1, P<0.05) in the DS group only and a significant difference (P<0.01) in RPE was observed between groups (7.7±1.5 for DS and 5.3±1.4 for NS). CONCLUSIONS Superior muscle gains might be achieved with a single set of DS compared to 3 sets of conventional RT, probably due to higher stress experienced in the DS protocol.