Miracle-dz/UniFAR-FTUs huggingface dataset:
Team entrepreneurial competence: multilevel effects on individual cognitive strategies

Purpose The purpose of this paper is to introduce the concept of team entrepreneurial competence, a team-level construct representing the level of shared abilities toward entrepreneurial activities within a new venture team. A multilevel model of the influence of team entrepreneurial competence and team entrepreneurial experience on the cognitive strategies of team members is developed and tested. Design/methodology/approach Using a sample of 47 early stage entrepreneurial teams (144 individuals), a set of hypotheses regarding the effect of team entrepreneurial competence on team member reliance on effectual and causal reasoning, together with the moderating effect of team entrepreneurial experience, are tested. Findings The results provide support for a positive multilevel association between team entrepreneurial competence and the reliance by team members on both causal and effectual reasoning strategies; members of teams with higher entrepreneurial competence and more entrepreneurial experience are more likely to engage in effectuation. Research limitations/implications Understanding how team-level predictors and moderators have a role in determining individual effectuation and causation strategies offers promise in advancing effectuation theory. Practical implications Teams develop entrepreneurial competencies that transcend those of individual team members; where teams have more collective entrepreneurial experience, the effect on the tendency of individuals to engage in effectual reasoning is enhanced, which can be beneficial in highly uncertain contexts. Originality/value The results of this study are a step forward for effectuation theory, as it demonstrates the role of team-level variables in explaining individual causal and effectual reasoning.
Implications of Application Programming Interfaces for Third‐Party New App Development and Copycatting

Digital platforms can use application programming interfaces (APIs) to support third‐party development of new apps and achieve growth at an unprecedented scale. However, there is also a dilemma between original new development and copycatting by third‐party suppliers. Motivated by this tension, we examined how APIs provided by digital platforms may influence two types of third‐party new app development: original apps and app copycatting. We also investigated how these influences are dependent on app market conditions. We empirically tested our theoretical conjectures using data on a leading web browser platform, and applying analytics techniques on app source code to identify original apps and copycat apps. Based on a difference‐in‐differences identification strategy, our findings suggest that the provision of platform APIs enhance the original new development of apps. While platform APIs may facilitate app copycatting as well, our findings suggest that platform APIs can enhance app suppliers’ relative attractiveness to original new development in comparison to copycatting. The enhancing effect of platform APIs on original new development is strengthened by app market potential and high market‐level app complexity. The enhancing effect of platform APIs on app copycatting is strengthened by app market potential and high market concentration. Our study has important theoretical and practical implications.
Eccentric spheres models of the head

Equations are derived for electric potentials (electroencephalograms) and magnetic fields (magnetoencephalograms) produced by dipolar sources in three eccentric spheres models of the head. In these models, the thickness of the layer representing the skull varies around the model, the thickness of the scalp layer varies, and the electrical conductivity of an eccentric spherical bubble in the brain region varies. Using these equations, it was found that variations in these features of the models have at most only small effects on the general spatial patterns of the electric potentials and the radial component of the magnetic fields. However, some significant effects on the amplitudes were found. The effects of the variations in the skull and scalp layer thicknesses on the field amplitudes were found to be significantly smaller than on the potential amplitudes. The effects on the field amplitudes of the variations in the bubble conductivity were found to be only somewhat smaller than on the potential amplitudes. The effects of variations in these features of the models on source localization accuracy were significantly smaller for inverse solutions using fields than for solutions using potentials. <<ETX>>
Randomized Controlled Trial Comparing Traditional with Two “Mobile” Epidural Techniques: Anesthetic and Analgesic Efficacy

Background The authors recently showed that “mobile” epidural analgesia, using low-dose local anesthetic-opioid mixtures, reduces the impact of epidural analgesia on instrumental vaginal delivery, relative to a traditional technique. The main prespecified assessment of pain relief efficacy, women's postpartum estimates of labor pain after epidural insertion, did not differ. The detailed analgesic efficacy and the anesthetic characteristics of the techniques are reported here. Methods A total of 1,054 nulliparous women were randomized, in labor, to receive boluses of 10 ml 0.25% bupivacaine (traditional), combined spinal-epidural (CSE) analgesia, or low-dose infusion (LDI), the latter groups utilizing 0.1% bupivacaine with 2 &mgr;g/ml fentanyl. Visual analog scale pain assessments were collected throughout labor and delivery and 24 h later. Details of the conduct of epidural analgesia, drug utilization, and requirement for anesthesiologist reattendance were recorded. Results A total of 353 women were randomized to receive traditional epidural analgesia, 351 received CSE, and 350 received LDI. CSE was associated with a more rapid onset of analgesia, lower median visual analog scale pain scores than traditional in the first hour after epidural insertion, and a significant reduction in bupivacaine dose given during labor. Pain scores reported by women receiving LDI were similar to those in the traditional group throughout labor and delivery. Anesthesiologist reattendance was low but greater with each mobile technique. Conclusions Relative to traditional epidural analgesia, LDI is at least as effective and CSE provided better pain relief in the early stages after insertion. The proven efficacy of mobile epidurals and their beneficial impact on delivery mode make them the preferred techniques for epidural pain relief in labor.
Are There Schizophrenia Genetic Markers and Mutations? A Systematic Review and Meta-Analyses

Background: Schizophrenia is a severe psychiatric disorder with a complex genetic factor determining its disease onset. Nevertheless, it is not clear in this mental disorder. Objective: To conduct a systematic review of articles regarding the genetic markers and mutations in schizophrenia. Methods: A systematic review of articles on genetic markers and mutations in schizophrenia, published from January 1, 2011, to September 7, 2015, on SCOPUS database was carried out. Search terms were “Genetic markers”, “Mutation”, and “Schizophrenia”. Results: Of the 527 retrieved studies, 31 met the eligibility criteria. Genetic polymorphism, Immune-associated genes, TCF4 and ZNF804A association with microRNA, Neuregulin gene, Chromosome 13q32 and 11p15.4, genes involved in glutamatergic via schizophrenia and brain structure, appeared to be associated with the origin of schizophrenia. Conclusion: Some studies show genes involved in several pathways leading to the disease pathogenesis such as that one related with the dopaminergic and immune system, or rare alleles. Some genes present no involvement in the etiology of this mental disorder. These findings clarify the genetic complexity of schizophrenia and affirm that together, the genes have an overall effect greater than the sum of the individual effect of each gene.
Accounting for the distributional effects of the 2007-2008 crisis and the Economic Adjustment Program in Portugal

This paper develops a new method to model the household disposable income distribution and decompose changes in this distribution (or functionals such as inequality measures) over time. It integrates both a micro-econometric and microsimulation approaches, combining a flexible parametric modelling of the distribution of market income with the EUROMOD microsimulation model to simulate the value of taxes and benefits. The method allows for the quantification of the contributions of four main factors to changes in the disposable income distribution between any two years: (i) labour market structure; (ii) returns; (iii) demographic composition; and (iv) tax-benefit system. We apply this new framework to the study of changes in the income distribution in Portugal between 2007 and 2013, accounting for the distributional effects of the 2007-2008 crisis and aftermath policies, in particular the Economic Adjustment Program (EAP). Results show that these effects were substantial and reflected markedly different developments over two periods: 2007-2009, when stimulus packages determined important income gains for the bottom of the distribution and a decrease in income inequality; 2010-2013, when the crisis and austerity measures took a toll on the incomes of Portuguese households, particularly those at the bottom and top of the distribution, leading to an increase in income inequality.
Large size, lightweight, Luneburg Lenses for multi-beam antenna applications

Using newly developed meta-materials, multilayer Luneburg Lenses were fabricated with diameters 0.6m and 1.0m. The meta-materials used are broad-band, have low losses, have controllable permittivity and average density of 40kg/m3. This allows for a construction of large diameter broadband Luneburg Lenses with multilayer structure and low weight, the 0.6m and 1.0m Lenses weighing less then 5kg and 21kg respectively. The measurement results of the light weight, large size, broadband Luneburg Lenses are presented.
A Brief Review of Load Balancing Issue in Cloud Computing Environment

The management of resources and request in cloud environment is big challenging task. The unbalanced scenario of resources and request raised situation of overloading and degraded the performance of cloud environment. Now a day’s various authors used load balancing technique for the improvement of the cloud environment. For the balancing of load used load policy on the basis of static and dynamic nature. The static load balancing technique used CPU scheduling algorithm such as a round robin, first come first serve and shortest job first. All these technique is not schedule job in proper manner and the performance of cloud is degraded. Instead of these technique dynamic balancing used heuristic based technique such as ant colony optimization, particle swarm optimization and many more swarm based algorithm. now a day some authors used probability and time quantum based scheduling technique for cloud environment. In this paper present the review of load balancing technique for cloud environment.
User cooperative mobility for QoS improvement in ad-hoc networks

To mitigate performance anomalies due to different transmission rates and improve throughput performance in ad-hoc networks, we propose a method called user cooperative mobility in which a node, i.e., a user of an ad-hoc network, moves (changes its geometrical position) for communication. Unlike previous research regarding user cooperative mobility, it is not easy to decide to where the user should move to obtain the best result because the move may change multiple transmission rates in multiple links. Thus, we show that the best position to move to is quite different from the intuitively best position on the way to the next hop. We first evaluate throughput characteristics at every position within a movable distance from the original position of the cooperative mobility user. Then, we compare differences in throughput and direction of movement between the following three movement strategies: the best move, the intuitive move and no move. In terms of throughput improvement, which is normalized by the throughput of no move, the best move results were 40% better than those of no move and 24% better than those of the intuitive move. The direction of movement significantly differed from the intuitive move, by 92 degrees at the maximum. We conclude that cooperative user mobility with the best move is beneficial for both cooperative mobility users and ad-hoc networks.
Annual Summary of Vital Statistics: 2004

The crude birth rate in 2004 was 14.0 births per 1000 population, the second lowest ever reported for the United States. The number of births and the fertility rate (66.3) increased slightly (by <1%) from 2003 to 2004. Fertility rates were highest for Hispanic women (97.7), followed by Asian or Pacific Islander (67.2), non-Hispanic black (66.7), Native American (58.9), and non-Hispanic white (58.5) women. The birth rate for teen mothers continued to fall, dropping 1% from 2003 to 2004 to 41.2 births per 1000 women aged 15 to 19 years, which is another record low. The teen birth rate has fallen 33% since 1991; declines were more rapid for younger teens aged 15 to 17 (43%) than for older teens aged 18 to 19 (26%). The proportion of all births to unmarried women is now slightly higher than one third. Smoking during pregnancy declined slightly from 2003 to 2004. In 2004, 29.1% of births were delivered by cesarean delivery, up 6% since 2003 and 41% since 1996 (20.7%). The primary cesarean delivery rate has risen 41% since 1996, whereas the rate of vaginal birth after a previous cesarean delivery has fallen 67%. The use of timely prenatal care was 84.0% in both 2003 and 2004. The percentage of preterm births rose to 12.5% in 2004 from 10.6% in 1990 and 9.4% in 1981. The percentage of low birth weight births also increased to 8.1% in 2004, up from 6.7% in 1984. Twin birth rate and triplet/+ birth rates increased by 1% and <1%, respectively, from 2002 to 2003. Multiple births accounted for 3.3% of all births in 2003. The infant mortality rate was 7.0 per 1000 live births in 2002 compared with 6.8 in 2001. The ratio of the infant mortality rate among non-Hispanic black infants to that for non-Hispanic white infants was 2.4 in 2002, the same as in 2001. The United States continues to rank poorly in international comparisons of infant mortality. Expectation of life at birth reached a record high of 77.6 years for all gender and race groups combined. Death rates in the United States continue to decline, with death rates decreasing for 8 of the 15 leading causes. Death rates for children ≤19 years of age declined for 7 of the 10 leading causes in 2003. The death rates did not increase for any cause, and rates for heart disease, influenza, and pneumonia and septicemia did not change significantly for children as a group. A large proportion of childhood deaths, however, continue to occur as a result of preventable injuries.
Accounting Comparability, Financial Reporting Quality, and the Pricing of Accruals

Abstract This study examines the impact of accounting comparability on financial reporting quality and the extent to which financial statement users understand the implications of firms' accruals. We predict that comparability improves the information environment, which not only enhances the ability of managers to estimate accruals more accurately and signal their private information, but also improves investors' comprehension of accruals. Utilizing restatements, the mapping of accruals into cash flows, earnings persistence, and audit fees as measures of financial reporting quality, we find that prior-period comparability is associated with higher financial reporting quality. We also provide evidence that comparability is positively associated with managerial forecast accuracy and precision, consistent with comparability improving the ability of managers to predict future firm performance. Furthermore, we find that when prior-period comparability is higher, current period discretionary accruals are less positively correlated with contemporaneous returns and less negatively correlated with future returns, consistent with our prediction that comparability improves the pricing efficiency of accruals. Our results are robust to controlling for the endogeneity of accounting comparability and several different empirical model specifications. Overall, our findings suggest that enhanced accounting comparability is beneficial to both preparers and users of financial statements.
Tyrosinase inhibitory effects and inhibition mechanisms of nobiletin and hesperidin from citrus peel crude extracts

The inhibitory effects of nobiletin and hesperidin from citrus peel crude extracts on tyrosinase diphenolase activity are evaluated. IC50 of nobiletin and hesperidin is 1.49 mM and 16.08 mM, respectively and their inhibition mechanism is competitive type with Ki = 2.82 mM and noncompetitive with Ki = 9.16 mM, respectively. Crude extracts from citrus peel (C. unshiu Marc.) were extracted with 95% ethanol and fractionated by petroleum ether (PCPE). The ethanol phase (ECPE) was further desorbed from macroporous adsorption resin (FGRE). Their IC50 values were 8.09 mg/mL, 7.53 mg/mL and 4.80 mg/mL, respectively. Their inhibition on melanogenesis in B16 mouse melanoma cells was also evaluated. FGRE showed a significant inhibition (42.5% at 31.25 μg/mL, p < 0.01) while hesperidin showed almost no inhibition. Nobiletin and PCPE give efficacious antiproliferation effects on B16 mouse melanoma cell with IC50 values 88.6 μM and 62.96 μg/mL, respectively, by the MTT test. Hesperidin and other crude extracts showed very low cytotoxity to the B16 cell.
Evolutionary algorithms based analog filter approximation

In this work, considering the solution of analog filter approximation problem, evolutionary algorithms are used to obtain nth order transfer functions. Coefficients of denominator polynomial of low pass analog filter are optimized and this process is carried out for three different orders of transfer functions. Simulation results show that error values obtained with evolutionary algorithms are less than that of traditional methods. The feasibility of the proposed method on circuit realization is investigated by designing passive and active analog filter circuits which realize 3rd order transfer function.
Benzodiazepines for PTSD: A Systematic Review and Meta-Analysis

Objective: Although benzodiazepines (BZDs) are commonly used in the treatment of posttraumatic stress disorder (PTSD), no systematic review or meta-analysis has specifically examined this treatment. The goal of this study was to analyze and summarize evidence concerning the efficacy of BZDs in treating PTSD. Methods: The review protocol was undertaken according to the principles recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and is registered with the PROSPERO international prospective register of systematic reviews (http://www.crd.york.ac.uk/PROSPERO, registration number CRD42014009318). Two authors independently conducted a search of all relevant articles using multiple electronic databases and independently abstracted information from studies measuring PTSD outcomes in patients using BZDs. Eighteen clinical trials and observational studies were identified, with a total of 5236 participants. Outcomes were assessed using qualitative and quantitative syntheses, including meta-analysis. Results: BZDs are ineffective for PTSD treatment and prevention, and risks associated with their use tend to outweigh potential short-term benefits. In addition to adverse effects in general populations, BZDs are associated with specific problems in patients with PTSD: worse overall severity, significantly increased risk of developing PTSD with use after recent trauma, worse psychotherapy outcomes, aggression, depression, and substance use. Potential biopsychosocial explanations for these results are proposed based on studies that have investigated BZDs, PTSD, and relevant animal models. Conclusions: The results of this systematic review suggest that BZDs should be considered relatively contraindicated for patients with PTSD or recent trauma. Evidence-based treatments for PTSD should be favored over BZDs.
Integrons: Past, Present, and Future

SUMMARY Integrons are versatile gene acquisition systems commonly found in bacterial genomes. They are ancient elements that are a hot spot for genomic complexity, generating phenotypic diversity and shaping adaptive responses. In recent times, they have had a major role in the acquisition, expression, and dissemination of antibiotic resistance genes. Assessing the ongoing threats posed by integrons requires an understanding of their origins and evolutionary history. This review examines the functions and activities of integrons before the antibiotic era. It shows how antibiotic use selected particular integrons from among the environmental pool of these elements, such that integrons carrying resistance genes are now present in the majority of Gram-negative pathogens. Finally, it examines the potential consequences of widespread pollution with the novel integrons that have been assembled via the agency of human antibiotic use and speculates on the potential uses of integrons as platforms for biotechnology.
Determining the angle and depth of puncture for fluoroscopy-guided percutaneous renal access in the prone position

Introduction: Optimal renal access is necessary for ensuring a successful and complication-free percutaneous nephrolithotomy. We describe a technique to determine the angle and depth of puncture for fluoroscopy-guided percutaneous renal access in the prone position. Materials and Methods: Forty-two consecutive patients undergoing percutaneous nephrolithotomy from January 2014 had a fluoroscopy-guided access in the prone position. Using the bull′s eye technique, the site of skin puncture and the angle of puncture were determined. These parameters were utilized to calculate, mathematically, the depth of the targeted calyx. These measurements were then utilized for puncture. The actual depth of puncture was then calculated. The number of attempts, time of fluoroscopy and difference between estimated and actual depth were noted and analyzed. Results and Limitations: There was a difference of 0-3 mm between the estimated and the actual depth at which puncture was made. Single-attempt puncture was possible in >95% cases. No complications related to access were observed. Conclusion: By estimating the angle and depth of puncture, the percutaneous renal access becomes technically less challenging.