Miracle-dz/UniFAR-FTUs huggingface dataset:
Minimal disconnected cuts in planar graphs

The problem of finding a disconnected cut in a graph is NP‐hard in general but polynomial‐time solvable on planar graphs. The problem of finding a minimal disconnected cut is also NP‐hard but its computational complexity was not known for planar graphs. We show that it is polynomial‐time solvable on 3‐connected planar graphs but NP‐hard for 2‐connected planar graphs. Our technique for the first result is based on a structural characterization of minimal disconnected cuts in 3‐connected K 3 , 3 ‐free‐minor graphs and on solving a topological minor problem in the dual. In addition we show that the problem of finding a minimal connected cut of size at least 3 is NP‐hard for 2‐connected apex graphs. Finally, we relax the notion of minimality and prove that the problem of finding a so‐called semi‐minimal disconnected cut is still polynomial‐time solvable on planar graphs. © 2016 Wiley Periodicals, Inc. NETWORKS, Vol. 68(4), 250–259 2016
KGEval: Estimating Accuracy of Automatically Constructed Knowledge Graphs

Automatic construction of large knowledge graphs (KG) by mining web-scale text datasets has received considerable attention recently. Estimating accuracy of such automatically constructed KGs is a challenging problem due to their size and diversity. This important problem has largely been ignored in prior research we fill this gap and propose KGEval. KGEval binds facts of a KG using coupling constraints and crowdsources the facts that infer correctness of large parts of the KG. We demonstrate that the objective optimized by KGEval is submodular and NP-hard, allowing guarantees for our approximation algorithm. Through extensive experiments on real-world datasets, we demonstrate that KGEval is able to estimate KG accuracy more accurately compared to other competitive baselines, while requiring significantly lesser number of human evaluations.
Seeing Differently, Acting Differently? New Venture Perceptions and Decisions of Managers and Successful Entrepreneurs

An experimental study was conducted in a sample of America’s most successful entrepreneurs and one of comparable large company managers to examine three research questions: Why do some individuals choose riskier ventures than do others? Do managers and successful entrepreneurs perceive new venture risk and potential differently? What accounts for differences, if any, in their decision‐making behavior? The findings are equally interesting for the effects we found and did not find. We found that differences in risk propensity and in situational factors like the market competencies brought to a particular venture influence risky new venture decision‐making; that perceptions of new venture risk and potential differ between managers and successful entrepreneurs, though in a direction opposite to that we hypothesized; and that individual differences, rather than group‐level differences, are primarily responsible for the degree of risk taken by managers and successful entrepreneurs. Taken together, our results call for further research at the marketing/entrepreneurship interface and research into differences between managers and entrepreneurs, using samples of highly successful entrepreneurs and comparable managers in established firms.
How do we engage with activity trackers?: a longitudinal study of Habito

We report on a 10-month in-the-wild study of the adoption, engagement and discontinuation of an activity tracker called Habito, by a sample of 256 users who installed the tracker on their own volition. We found 'readiness' to behavior change to be a strong predictor of adoption (which ranged from 56% to 20%). Among adopters, only a third updated their daily goal, which in turn impacted their physical activity levels. The use of the tracker was dominated by glances -- brief, 5-sec sessions where users called the app to check their current activity levels with no further interaction, while users displayed true lack of interest in historical data. Textual feedback proved highly effective in fueling further engagement with the tracker as well as inducing physical activity. We propose three directions for design: designing for different levels of 'readiness', designing for multilayered and playful goal setting, and designing for sustained engagement.
Blogging as a Social Tool: A Psychosocial Examination of the Effects of Blogging

New MySpace users (N = 58) were surveyed on joining the site and again in 2 months to examine psychosocial differences between bloggers and nonbloggers over time. Bloggers' social integration, reliable alliance, and friendship satisfaction all significantly increased compared to nonbloggers, suggesting that blogging has beneficial effects on well-being, specifically in terms of perceived social support.
The Effect of Prescription Omega-3 Fatty Acids on Body Weight after 8 to 16 Weeks of Treatment for Very High Triglyceride Levels

Abstract Background: Prescription omega-3-acid ethyl ester (P-OM3; Lovaza®) therapy is indicated for treating very high triglyceride levels (≥ 500 mg/dL) at a dose of 4 g/day. The caloric content associated with each 1-g capsule of P-OM3 is ∼11 Cal (Cal = kilocalories) — ∼9 Cal from the oil in the capsule that contains omega-3 fat and ∼2 Cal attributed to the components of the capsule shell. Thus, the 4-g/day dose contributes ∼44 Cal/day, with ∼36 Cal/day derived from the oil. Methods: This analysis evaluated 167 dyslipidemic (triglycerides: ≥ 500 mg/dL and < 1300 mg/dL), overweight/obese (body mass index [BMI] ≥ 25 kg/m2 and ≤ 43 kg/m2) patients aged 18 to 79 years. Data were derived from an 8-week, randomized, double-blinded, placebo-controlled, parallel-group trial comparing P-OM3 4 g/day + fenofibrate 130 mg/day (n = 84) versus placebo (4 g/day of corn oil) + fenofibrate 130 mg/day (n = 83), and an 8-week open-label extension (n = 117), during which all subjects received P-OM3 + fenofibrate. Subjects who received P-OM3 + fenofibrate continued the same treatment in the extension phase (non-switchers; n = 59). Those who initially received corn oil placebo + fenofibrate received P-OM3 + fenofibrate in the extension phase (switchers; n = 58). Results: During the 8-week double-blind phase in subjects receiving fenofibrate, the addition of P-OM3 (versus placebo) did not significantly change median (minimum, maximum) body weight (P-OM3 = 0 [−4.6, +4.2] kg, placebo = 0 [−3.6, +5.5] kg; P = 0.088) or waist circumference (P-OM3 = +0.1 [−12.1, +17.5] cm, placebo = +0.5 [−9.9, +12.2] cm; P = 0.162). In the 8-week extension phase, non-switchers and switchers did not differ in median change from the end of the double-blind phase in body weight (non-switchers = +0.2 [−3.2, +5.6] kg, switchers = +0.1 [−6.9, +7.9] kg; P = 0.982), or waist circumference (non-switchers = +0.1 [−9.8, +41.8] cm, switchers = +0.2 [−12.0, +7.0] cm; P = 0.685). Conclusion: When coadministered with fenofibrate for up to 16 weeks, the modest daily caloric contribution of P-OM3 (4 g/day) did not alter body weight or waist circumference compared with baseline or compared with fenofibrate plus placebo in patients with very high triglyceride levels.
INVESTOR ’ S PSYCHOLOGY IN INVESTMENT DECISION MAKING : A BEHAVIORAL FINANCE APPROACH

Worldwide the financial markets are influenced by several factors such as the changes in economic and political processes that occur in the country and the globe, information diffusion and approachability and so on. Yet, the foremost important factor is the investor’s reaction and perception. For an individual investor, decision making process can be perceived as a continuous process that have significant impact of their psychology while making investment decisions. Behavioral finance relies on research of human and social recognition and emotional tolerance studies to identify and understand the investment decisions. This article aims to report the research of individual investor’s financial behavior in a historical perspective. This article uncovers the investor’s psychology in investment decision making focusing on the investor’s rationality by explaining psychological and emotional factors that affect investing. The results of the study are revealed by means of Graphical visualization. Keywords—Behavioral Finance, Decision Making, Investor’s Behavior, Psychology, psychological and Emotional Factors
Development of an Enhanced Thermodynamic Database for the Pitzer Model in ESP : The Fluoride and Phosphate Components

iii Figures. v Tables. vi 1.0 Introduction. 1 2.0 Thermodynamic Model Development . 5 2.1 Model Parameterization. 6 2.1. 1 NaNO3-Na2CO3-H2O . 10 2.1. 2 NaNO3-Na2SO4-H2O. 11 2.1. 3 NaNO2-Na2CO3-H2O . 12 2.1. 4 NaF-NaOH-H2O . 13 2.1. 5 NaF-Na2SO4-H2O . 14 2.1. 6 NaF-NaNO3-H2O . 15 2.1. 7 NaF-Na2CO3-H2O. 15 2.1. 8 Na3PO4-Na2CO3-H2O . 16 2.1. 9 Na3PO4-NaNO2-H2O. 20 2.1. 10 Na3PO4-NaOH-H2O. 21 2.1. 11 Na3PO4-NaF-H2O . 22 3.0 Impact of New Model Parameters . 25 4.0 Model Limitations. 26 5.0 References. 28
Environmental and silvicultural characteristics influencing the extent of ash dieback in forest stands.

Extensive investigation of the impact of ash dieback in forest stands in the Czech Republic was conducted in 2013. Data on the defoliation of ash trees were collected from 1169 forest stands within the entire area of the Czech Republic. A set of 37 variables acquired from different databases (State Forests, GIS, Digital Terrain Model) describing silvicultural, environmental and landscape characteristics were used as explanatory variables.A generalized linear model (GLM) explained nearly 26% of the disease data variability. In the model, the extent of the disease was positively affected by the density of stocking, site class, vertical terrain heterogeneity, temperature and the presence and width of watercourse and negatively affected by mean tree height, the altitudinal zone of the forest, and the distance to the nearest ash stand. The model confirmed an important role of tree species composition of stands with ash. The disease extent was the highest in the presence of Quercus robur and the lowest in presence of Acer spp. and Abies spp. This finding is probably due to the different chemical composition of mixed litter and the leaching and translocation of nutrients from maple litter into ash petioles, which could accelerate decomposition, whereas fungistatic tannins and secondary metabolites from fir litter could inhibit microbial growth. The extent of the disease also significantly differed according to edaphic series of forests, and GLM models were successfully developed for them. These models differed from each other and explained 23–37% of disease variability; other factors influencing disease extent were also determined: distance to water, SD of slope, ash area, standing volume, aspect, TPI, landforms and the presence of other tree taxa such as Pinus spp. , Quercus petraea, Fagus sylvatica and Betula pendula.The results indicated that the disease extent is substantially affected by environmental and stand characteristics and that the development of effective forest management strategies to address the epidemic in European forests (at least in central Europe) is possible.
Relationship between mechanical dyssynchrony and intraoperative electrical delay times in patients undergoing cardiac resynchronization therapy

Background: It is important to understand the relationship between electrical and mechanical ventricular activation in CRT patients. By measuring local electrical activation at multiple locations within the coronary veins and myocardial contraction at the same locations in the left ventricle, we determined the relationship between electrical and mechanical activation at potential left ventricular pacing locations. Methods: In this study, mechanical contraction times were computed using high temporal resolution cine cardiovascular magnetic resonance (CMR) data, while electrical activation times were derived from intra-procedural local electrograms. Results: In our cohort, there was a strong correlation between electrical and mechanical delay times within each patient (R = 0.78 ± 0.23). Additionally, the latest electrically activated location corresponded with the latest mechanically contracting location in 91% of patients. Conclusions: This study provides initial evidence that our method of obtaining non-invasive mechanical activation patterns accurately reflects the underlying electromechanical substrate of intraventricular dyssynchrony.
Alcohol as a risk factor for pancreatitis. A systematic review and meta-analysis.

CONTEXT Epidemiologic studies have suggested an association between alcohol consumption and pancreatitis, although the exact dose-response relationship is unknown. It also remains uncertain whether a threshold effect exists. OBJECTIVE To conduct a systematic review and meta-analysis of epidemiologic studies on the association between alcohol consumption and the risk of pancreatitis. METHODS We searched Ovid MEDLINE, EMBASE, CINAHL, Web of Science, ETOH and AIM. Studies were included if they reported quantifiable information on risk and related confidence intervals with respect to at least three different levels of alcohol intake. RESULTS Six studies, including 146,517 individuals with 1,671 cases of pancreatitis, met the inclusion criteria. We found a monotonic and approximately exponential dose-response relationship between average volume of alcohol consumption and pancreatitis. However, in a categorical analysis the lower drinking categories were not significantly elevated, with an apparent threshold of 4 drinks daily. CONCLUSIONS As the available evidence also indicates that the relationship is biologically plausible, these results support the existence of a link between alcohol consumption and the risk of pancreatitis.
RELATIONSHIP BETWEEN SELF-ESTEEM WITH PROCRASTINATION AND SELF-EFFICACY AMONG EMPLOYERS OF PROFESSIONAL AND TECHNICAL ORGANIZATION OF ZAHEDAN

This article had been done by the purpose of investigating the relationship between self-esteem with procrastination and self-efficacy among employers of Professional and technical Organization of Zahedan. This study is a description of correlation which statistical society of this research include all the employers of Professional and technical Organization of Zahedan and the Sample volume was selected to be 217 persons on the basis of Morgan table by the method of random sampling for collecting data, the self-esteem, procrastination, selfefficacy beliefs were used. For analyzing data, the pearson correlation factor, step by step regression test used. The result of Pearson correlation factor showed that there is a negative and meaningful correlation between total grades of self-esteem and self-control, organization, advance motivations and total grades of procrastination, but there was a positive and meaningful correlation between self-esteem grades and distraction. But there was not meaningful correlation between impulsivity and self-esteem. Also the correlation between self-esteem and self – efficacy was positive and meaningful. The result of step by step regression showed that self-control subscale amounts to 20.1%, distraction subscale amounting to 3.8% and total grades of procrastination amounting to 2.2% distinguished the variances for self-esteem grades. If the rest of subscales of procrastination do not have conditions for entering the regression equation and de leted from equation. The result of simple linear regression showed that self-efficacy grades amounting to 34.7% distinguished the variance for selfesteem.
A retrospective analysis of the impact of diastolic dysfunction on one-year mortality after transjugular intrahepatic porto-systemic shunt, liver transplantation and non-transplant abdominal surgery in patients with cirrhosis

Background The incidence of diastolic dysfunction (DD) approaches 40% in patients with cirrhosis. However, the clinical impact of DD remains a subject of considerable debate. Surgery in patients with cirrhosis is innately hazardous. Diastolic heart failure has been linked to increased mortality after transjugular intrahepatic porto-systemic shunt surgery (TIPSS). To date, none of the commonly accepted preoperative risk assessment models applied to patients with liver disease incorporates DD. We aimed to examine the relationship between DD and postoperative outcomes in patients with cirrhosis undergoing abdominal surgery. Methods Patients with cirrhosis who underwent abdominal surgery between January 2000 and December 2011 were included if they had preoperative echocardiography done within 3 months of surgery. The echocardiographic images were reviewed using flow and tissue Doppler techniques to identify the presence of DD. Outcomes analyzed included one-year mortality and postoperative complications. Results A total of 140 patients were included in the study of which 63 patients (45%) met pre-established criteria for DD. Those with DD were older (P < 0.005) and less likely to have an isolated viral etiology of cirrhosis (P<0.05). The one-year mortality rate was 22.2% (14/63) in patients with DD and 20.8% (16/77) in those without DD (P=0.42). Postoperative complications were not statistically different in the two groups. Conclusion DD is common in patients with cirrhosis. In patients with cirrhosis undergoing TIPS and/or abdominal surgery, the presence of DD does not increase post-procedure complications or one-year mortality.
Laminar Natural Convection Study in a Horizontal Half-Elliptical Enclosure Using Heater on Horizontal Wall

Article history: Received 12 October 2018 Received in revised form 29 December 2018 Accepted 2 January 2019 Available online 11 January 2019 A numerical analysis of laminar natural convection in a horizontal annulus between an internal heated plane and an external cold half-elliptical was investigated using approximation of Boussinesq. Both internal and external walls are maintained at the constant temperature and air is the working fluid. Numerical solutions are obtained using a commercial computational fluid dynamics package, FLUENT, using the finite volume method. Effects of the Rayleigh number, Rat, on the Nusselt number, Nu, as well as velocity and temperature fields are investigated for the range of Rat from 1.0 103 to 5.0 105. The results show that for a small thermal Rayleigh number, the heat transfer within the annulus is essentially controlled by the conduction process. As the thermal Rayleigh number increases (Rat ≥ 104), the role of convection becomes predominant. Also the heat transfer rate increases. The aim of this study is to observe the effects of thermal Rayleigh numberon the structure of the flow and the distribution of the temperature.
GSK3β-Dependent Phosphorylation Alters DNA Binding, Transactivity and Half-Life of the Transcription Factor USF2

The upstream stimulatory factor 2 (USF2) is a regulator of important cellular processes and is supposed to have also a role during tumor development. However, the knowledge about the mechanisms that control the function of USF2 is limited. The data of the current study show that USF2 function is regulated by phosphorylation and identified GSK3β as an USF2-phosphorylating kinase. The phosphorylation sites within USF2 could be mapped to serine 155 and threonine 230. In silico analyses of the 3-dimensional structure revealed that phosphorylation of USF2 by GSK3β converts it to a more open conformation which may influence transactivity, DNA binding and target gene expression. Indeed, experiments with GSK-3β-deficient cells revealed that USF2 transactivity, DNA binding and target gene expression were reduced upon lack of GSK3β. Further, experiments with USF2 variants mimicking GSK3β phosphorylated USF2 in GSK3β-deficient cells showed that phosphorylation of USF2 by GSK3β did not affect cell proliferation but increased cell migration. Together, this study reports a new mechanism by which USF2 may contribute to cancerogenesis.
Does participation in innovation networks improve firms' relational abilities? Evidence from a regional policy framework

We contribute to the debate on the assessment of the behavioural effects of policies by investigating which features of policy interventions in support of innovation networks, if any, improve the firms’ ability to form subsequent relationships. In order to do so, we analyse the evolution of dyadic relationships within a set of policy interventions implemented by the Italian region of Tuscany between 2002 and 2008, aimed at supporting innovation projects performed by networks of heterogeneous agents. Our analysis shows that the observed policies have changed the relational pattern of the firms, pushing them to collaborate – often in a stable way – with a number of agents. We find that a large sectoral heterogeneity among agents is generally associated with a lower probability of networking; and that the presence of specialized intermediaries increases the firms’ ability to network with universities.
A study of first-year students’ adaptation difficulties as the basis to promote their personal development in university education

A study of first-year students’ adaptation difficulties as the basis to promote their personal development in university education Aleksandr A. Orlova, Svetlana V. Pazukhinab*, Aleksey V. Yakushinc, Tat’yana M. Ponomarevaa a Chair of Pedagogy, Tula State Lev Tolstoy Pedagogical University, Tula, Russia b Department of Psychology, Tula State Lev Tolstoy Pedagogical University, Tula, Russia c Department of Mathematics, Physics and IT Technologies, Tula State Lev Tolstoy Pedagogical University, Tula, Russia
Involvement of MyD88 in Host Defense and the Down-Regulation of Anti–Heat Shock Protein 70 Autoantibody Formation by MyD88 in Toxoplasma gondii–Infected Mice

This study investigated the influence of TLR (toll-like receptor)4, TLR2, and MyD88 in Toxoplasma gondii–infected wild-type (WT) mice and TLR4-, TLR2-, and MyD88-deficient mice. Ninety-five percent of MyD88-deficient mice died 10–16 days after intraperitoneal infection with 100 cysts of T. gondii Fukaya strain, whereas 95–100% of TLR4- and TLR2-deficient mice and WT C57BL/6 (B6) mice survived for more than 7 wk after T. gondii infection. The distribution of T. gondii in various organs of TLR4-, TLR2-, and MyD88-deficient mice and WT B6 mice was assessed 2 wk after T. gondii intraperitoneal infection using quantitative competitive polymerase chain reaction. In MyD88-deficient mice, high levels of T. gondii load were observed in the brain, tongue, heart, lungs, spleen, liver, mesenteric lymph node, and kidneys after infection. The T. gondii load was significantly increased in the lungs in both TLR4- and TLR2-deficient mice compared with WT B6 mice. High levels of anti–mouse heat shock protein (mHSP)70 autoantibody and anti-T. gondii HSP70 antibody production were detected in the sera from MyD88-deficient mice.