Miracle-dz/UniFAR-FTUs huggingface dataset:
Strength-based parenting and adolescents’ psychological outcomes: The role of mental toughness

Abstract The aim of this study was to examine the direct and indirect effects (via mental toughness) of strength-based parenting on adolescents’ psychological distress and subjective happiness. Participants included 370 adolescents (M = 15.86 years, SD = 0.50, range = 14–18 years, 51.6% girls) attending public high schools in Turkey. Participants completed a battery of questionnaires that included measures of strength-based parenting, mental toughness, psychological distress, and subjective happiness. Findings provided evidence of both direct as well as indirect effects (via mental toughness) of strength-based parenting on adolescents’ psychological outcomes. Specifically, results showed that strength-based parenting was negatively and directly related to psychological distress, and positively and directly related to subjective happiness. In addition, strength-based parenting was indirectly related to psychological distress and subjective happiness through mental toughness. The findings highlight the importance of strength-based parenting and mental toughness on psychological outcomes in adolescents.
Are Attitudes Towards Economic Risk Heritable? Analyses Using the Australian Twin Study of Gambling

Abstract This study employs multiple regression models based on DeFries and Fulker (1985), and a large sample of twins, to assess heritability in attitudes towards economic risk, and the extent to which this heritability differs between males and females. Consistent with Cesarini et al. (2009), it is found that attitudes towards risk are moderately heritable, with about 20 percent of the variation in these attitudes across individuals being linked to genetic differences. This value is less than one-half the estimates reported by Zyphur et al. (2009) and Zhong et al. (2009). While females are more risk averse than males, there is no evidence that heritability in attitudes towards risk differs between males and females. Even though heritability is shown to be important to economic risk-taking, the analyses suggest that multivariate studies of the determinants of attitudes towards risk which to not take heritability into consideration still provide reliable estimates of the partial effects of other key variables, such as gender and educational attainment.
Stretchable and Flexible High-Strain Sensors Made Using Carbon Nanotubes and Graphite Films on Natural Rubber

Conventional metallic strain sensors are flexible, but they can sustain maximum strains of only ∼5%, so there is a need for sensors that can bear high strains for multifunctional applications. In this study, we report stretchable and flexible high-strain sensors that consist of entangled and randomly distributed multiwall carbon nanotubes or graphite flakes on a natural rubber substrate. Carbon nanotubes/graphite flakes were sandwiched in natural rubber to produce these high-strain sensors. Using field emission scanning electron microscopy, the morphology of the films for both the carbon nanotube and graphite sensors were assessed under different strain conditions (0% and 400% strain). As the strain was increased, the films fractured, resulting in an increase in the electrical resistance of the sensor; this change was reversible. Strains of up to 246% (graphite sensor) and 620% (carbon nanotube sensor) were measured; these values are respectively ∼50 and ∼120 times greater than those of conventional metallic strain sensors.
Lu Qi-keng Conjectue and Hua Domain

The first part I talk about the motivation for Lu Qi-Keng conjecture and the results about the presence or absence of zeroes of the Bergman kernel function of a bounded in C. The second part I summarize the main results on Hua domains, such as the explicit Bergman kernel function, comparison theorem for the invariant metrics, complete Einstein-Kähler metric is equivalent to the Bergman metric, the equivalence between the Einstein-Kähler metric and the Bergman metric etc. I. Lu Qi-Keng Conjecture Lu Qi-Keng conjecture comes a problem in Lu’s paper ”The Kähler manifolds with constant curvature”[1]. That paper is written by Chinese and published in Acta Mathematica Sinica, 1966,16:269-281. Which was the last one before the culture revolution. Fortunately that paper was chosen to be translated in English and published in ”Chinese Mathematics”. Therefore that paper was known in the world. That problem is called Lu Qi-Keng conjecture firstly in 1969 by M.Skwarczynski in his paper ”The invariant distance in the theory of pseudoconformal transformations and the Lu Qi-Keng conjecture”[2]. Since then, there are many mathematicians to research the Lu Qi-Keng conjecture, for example, Harold P.Boas, Emil J. Straube. In 1979, R.E. Greene and H.Wu expatiated the Lu Qi-Keng conjecture in their monograph ”Function theory on manifolds which posses a pole”(published by Springer Verlag, Lecture Notes in Mathematics 699). 1982 S.G. Krantz expatiated the Lu QiKeng conjecture in his monograph ”Function Theory of Complex Variables”(John Wiley Sons,P.53). In 1993, M.Jarnicki and P.Pflug expatiated the Lu Qi-Keng conjecture in their monograph ”Invariant Distances and Metrics in Complex Analysis” (Walter de Gruyter, P.184). H.P.Boas gave a lecture titled ”Lu Qi-keng’s Problem” in International Conference KSCV3 in 1998, which is published in 2000[3]. In his excellent survey summarizes the various results and methods on the Lu Qi-Keng conjecture since 1969 and six open problems are stated. He said: ”It is a difficult to determine whether the Bergman kernel function of a specific domain has zeroes or not. If the kernel function is presented as an infinite series, then locating the zeroes may be of the same order of difficulty as proving the Riemann hypothesis; and even if the series can be summed in closed form, determining whether or not 0 is in the range may be hard. ” Lu Qi-Keng agrees to organize an International Workshop on ”Zeroes of the Bergman kernel function” in the next year, which will be sponsored by the Academy 2000 Mathematics Subject Classification. 32H15, 32F07, 32F15.
Comparison of confidence measures for face recognition

This paper compares different confidence measures for the results of statistical face recognition systems. The main applications of a confidence measure are rejection of unknown people and the detection of recognition errors. Some of the confidence measures are based on the posterior probability and some on the ranking of the recognition results. The posterior probability is calculated by applying Bayes' rule with different ways to approximate the unconditional likelihood. The confidence measure based on the ranking is a new method. Experiments to evaluate the confidence measures are carried out on a pseudo 2D hidden Markov model-based face recognition system and the Bochum face database.
Abnormal basal-body number, location, and orientation in a striated fiber-defective mutant of Chlamydomonas reinhardtii

We describe a mutant of Chlamydomonas reinhardtii in which basal body associated striated fibers are absent or incomplete. Basal body spacing, angle, and relative rotational orientation are abnormal and extremely variable. Abnormal partitioning of cellular contents at cytokinesis is also evident. Mating, maintenance of flagellar length equality, and backward swimming response are normal. Genetic analysis indicates mutation of a new Mendelian gene--vfl-3--linked to the centromere of Chromosome VI.
Increased Expression of Gp96 by HBx-Induced NF-κB Activation Feedback Enhances Hepatitis B Virus Production

Elevated expression of heat shock protein gp96 in hepatitis B virus (HBV)-infected patients is positively correlated with the progress of HBV-induced diseases, but little is known regarding the molecular mechanism of virus-induced gp96 expression and its impact on HBV infection. In this study, up-regulation of gp96 by HBV replication was confirmed both in vitro and in vivo. Among HBV components, HBV x protein (HBx) was found to increase gp96 promoter activity and enhance gp96 expression by using a luciferase reporter system, and western blot analysis. Further, we found that HBx-mediated regulation of gp96 expression requires a NF-κB cis-regulatory element on the gp96 promoter, and chromatin immunoprecipitation results demonstrated that HBx promotes the binding of NF-κB to the gp96 promoter. Significantly, both gain- and loss-of-function studies showed that gp96 enhances HBV production in HBV-transfected cells and a mouse model based on hydrodynamic transfection. Moreover, up-regulated gp96 expression was observed in HBV-infected patients, and gp96 levels were correlated with serum viral loads. Thus, our work demonstrates a positive feedback regulatory pathway involving gp96 and HBV, which may contribute to persistent HBV infection. Our data also indicate that modulation of gp96 function may represent a novel strategy for the intervention of HBV infection.
Are drug-eluting stents superior to bare-metal stents in patients with unprotected non-bifurcational left main disease? Insights from a multicentre registry.

AIMS To compare long-term clinical outcome following drug-eluting stents (DES) or bare-metal stents (BMS) implantation on lesions located at the ostium or the shaft of the left main in a large real-world population. The advent of DES decreased the risk of unprotected left main coronary artery (ULMCA) restenosis when compared with BMS, but it is unclear if this advantage continues when non-bifurcational lesions are considered. METHODS AND RESULTS The GISE-SICI registry is a retrospective, observational multicentre registry promoted by the Italian Society of Invasive Cardiology in which 19 high-volume participating centres enrolled 1453 consecutive patients who underwent percutaneous coronary intervention on ULMCA between January 2002 and December 2006. From the registry, a total of 479 consecutive patients with ostial and shaft lesions who underwent DES (n = 334) or BMS (n = 145) implantation were analysed with extensive multivariable and propensity score adjustments. At 3-year follow-up, risk-adjusted survival rates were higher in patients treated with DES than in those treated with BMS. The adjusted hazard ratio (HR) for the risk of mortality after DES implantation relative to BMS implantation was 0.37 (95% CI: 0.15-0.96, P = 0.04). The adjusted HR for the risk of cardiac mortality was 0.31 (95% CI: 0.09-1.04, P = 0.06). The adjusted 3-year rates of target lesion revascularization (TLR) were not significantly lower in the DES group than in the BMS group (P = 0.60). CONCLUSION In a large population of patients with lesions located at the ostium or the shaft of the left main in a real-world setting, DES were associated with favourable clinical outcomes when compared with BMS, although there was no evidence of a significant reduction in TLR with DES vs. BMS.
Heterotypic interactions regulate cell shape and density during color pattern formation in zebrafish

ABSTRACT The conspicuous striped coloration of zebrafish is produced by cell-cell interactions among three different types of chromatophores: black melanophores, orange/yellow xanthophores and silvery/blue iridophores. During color pattern formation xanthophores undergo dramatic cell shape transitions and acquire different densities, leading to compact and orange xanthophores at high density in the light stripes, and stellate, faintly pigmented xanthophores at low density in the dark stripes. Here, we investigate the mechanistic basis of these cell behaviors in vivo, and show that local, heterotypic interactions with dense iridophores regulate xanthophore cell shape transition and density. Genetic analysis reveals a cell-autonomous requirement of gap junctions composed of Cx41.8 and Cx39.4 in xanthophores for their iridophore-dependent cell shape transition and increase in density in light-stripe regions. Initial melanophore-xanthophore interactions are independent of these gap junctions; however, subsequently they are also required to induce the acquisition of stellate shapes in xanthophores of the dark stripes. In summary, we conclude that, whereas homotypic interactions regulate xanthophore coverage in the skin, their cell shape transitions and density is regulated by gap junction-mediated, heterotypic interactions with iridophores and melanophores. Summary: The conspicuous pigmentation pattern of zebrafish is produced by three kinds of interacting pigment cells. Here we address the cellular consequences of these interactions in wild-type fish and mutants with altered pigment patterns.
New Zealand Joint Registry data underestimates the rate of prosthetic joint infection

Background and purpose — Recent studies have revealed deficiencies in the accuracy of data from joint registries when reoperations for prosthetic joint infections (PJIs) are reported, particularly when no components are changed. We compared the accuracy of data from the New Zealand Joint Registry (NZJR) to a multicenter audit of hospital records to establish the rate of capture for PJI reoperations. Methods — 4,009 cases undergoing total knee or hip arthroplasty performed at 3 tertiary referral hospitals over a 3-year period were audited using multiple hospital datasets and the NZJR. The number of reoperations for PJI that were performed within 2 years of the primary arthroplasty was obtained using both methods and the data were compared. Results — The NZJR reported a 2-year reoperation rate for PJI of 0.67%, as compared to 1.1% from the audit of hospital records, giving the NZJR a sensitivity of 63%. Only 4 of 11 debridement-in-situ-only procedures and 7 of 12 modular exchange procedures were captured in the NZJR. Interpretation — The national joint registry underestimated the rate of reoperation for PJI by one third. Strategies for improving the accuracy of data might include revising and clarifying the registry forms to include all reoperations for PJI and frequent validation of the registry data against other databases.
Cores and Connectivity in Sparse Random Graphs

We consider k-connectivity in a sparse random graph with a specified degree sequence. When dealing with sparse random graphs, properties that require connectivity are most appropriately phrased in terms of a giant subgraph that satisfies that property since a sparse random graph is generally not connected. Here a giant subgraph is one that contains a constant fraction of the vertices in the original graph. We obtain a tight threshold on the existence of a giant k-vertex or k-edge connected subgraph for k ≥ 3 in a sparse random graph drawn from Gn,p. Although k-connectivity in Gn,p has been widely studied in the literature, results for higher connectivity have applied mainly to the case when p ≥ lnn/n, which makes it likely that the graph is connected, and very little is known about higher connectivity in sparse Gn,p. The k-core of a graph is the maximal induced subgraph with minimum degree k. The key tool in the derivation of our connectivity results is our recent theorem and proof strategy for the giant k-core threshold in sparse random graphs with a specified degree sequence. A degree sequence exhibits a power law if the number of vertices of degree i is proportional to 1 iβ , for a suitable constant β. We establish that for every k ≥ 3, a random power-law graph has a giant k-core if 2 < β < 3, and it has no giant 3-core if β ≥ 3. Thus for β ≥ 3 our results establish that a random power-law graph has no giant 3-connected subgraph. For 2 < β < 3 we derive a weaker result, that any (k − 1)-separator in the k-core, must separate a set of size at most n where c < 1 depends on β. Finally, the existence of a giant k-core in a random graph is related in an informal way to the probability that the genealogy tree of a certain branching process contains a perfect infinite (k− 1)-ary tree. We provide a solution to this latter problem in terms of probability generating functions. This result is tangential to the rest of our paper, but may be of independent interest.
Transnationality and Social Inequalities of Migrants in Germany

The relationship between people’s transnational ties and practices and their social position is subject to a controversial debate that suggests a dualistic picture. While there seems to exist a group of highly educated people who benefit from transnational mobility and networks, for migrants the maintenance of transnational ties to their ‘old homes’ appears to lead to a social mobility trap, and thus to further marginalisation. Yet, the relationship between transnationality and social inequality has so far attracted little systematic exploration. This paper traces the association of transnationality with social inequalities among migrants in Germany. The discussion is led by results from US studies while these, and the few available European studies, have investigated particular groups and used selected indicators in relation to both transnationality and social inequalities. In order to contribute to a better understanding of the relationship, this paper proposes a concept of transnationality as heterogeneity that distinguishes various dimensions of transnationality. In this respect, the analysis concentrates on financial, personal, identity-based and cultural practices. As a marker of heterogeneity, transnationality may be related to the production of social inequalities, understood as differential opportunities to participate in society. These, in turn, are based on the availability of economic, cultural and social capital. Using these concepts, the association between transnationality and social inequalities will be analysed by employing data from the German Socio-Economic Panel Study (SOEP) which contains a relevant sub-sample of migrants as well as a number of transnational items. The analysis focuses on the question whether or not this association is marked by a dualistic pattern as suggested in the current debate. To this end, it investigates how the different dimensions of transnationality are related to the various forms of capital relevant for social inequalities. As it turns out, the analysis identifies no uniform pattern. To the contrary, different dimensions of transnationality are differently associated with the various forms of capital. More often than not, those persons who engage in transnational practices in the various dimensions are those who have higher levels of capital at their disposal. Frequently, however, the relationship is by no means clear-cut.
human fear conditioning Effects of stress and sex on acquisition and consolidation of

We examined the relationship between stress hormone (cortisol) release and acquisition and consolidation ofconditioned fear learning in healthy adults. Participants underwent acquisition of differential fear conditioning, andconsolidation was assessed in a 24-h delayed extinction test. The acquisition phase was immediately followed by an11-min psychosocial stress period (arithmetic test combined with a public speech). Salivary cortisol was sampled atvarious time points before and after acquisition and retention of fear conditioning. Results showed two effects ofendogenous cortisol. Post-acquisition cortisol correlated with fear acquisition in male but not female participants. Inaddition, post-acquisition cortisol correlated with consolidation of fear but only in those participants with highcortisol levels. We conclude that in the short term, a robust and sexually dimorphic relationship exists between fearlearning and stress hormone levels. For those participants whose fear learning is accompanied by high stresshormone levels, a long-term relationship exists between cortisol release and memory consolidation. These short-termand long-term effects may relate to the differential involvement of mineralocorticoid and glucocorticoid receptorsubtypes, respectively. The findings have implications for understanding the role of stress, sex, and hormones indifferent stages of fear learning and memory.
21st CENTURY LEARNING SKILLS AND AUTONOMY: STUDENTS’ PERCEPTIONS OF MOBILE DEVICES IN THE THAI EFL CONTEXT

This study examined the extent to which English as a Foreign Language (EFL) high-school students believed mobile devices increase learning a d learner satisfaction in the Thai school/classroom context, and whether they are prep ared for autonomous learning using these devices. The participants were 277 students in eigh t high-schools in Southern Thailand who completed a questionnaire constructed around the co re competencies of 21 st century learning skills and autonomous traits in relation to mobile device us . The findings indicated that students had access/ability to use mobile devices, and either ag reed/strongly agreed that mobile devices increase their learning potential and satisfaction, suggesti ng hey are ready for autonomous learning using mobile devices in partnership with their 21st centu ry learning skills. Recommendations are made for teachers and policy-makers to allow students to complement their learning using mobile devices.
Selenoperoxidase-mediated cytoprotection against merocyanine 540-sensitized photoperoxidation and photokilling of leukemia cells.

Photodynamic therapy with the lipophilic sensitizing dye merocyanine 540 (MC540) is a promising new approach for extracorporeal purging of neoplastic cells from autologous remission bone marrow grafts. Resistance-conferring cellular defenses against the cytotoxic effects of MC540/photodynamic therapy have not been well characterized. This study focuses on the cytoprotective effects of the glutathione-dependent selenoperoxidases GPX and PHGPX, which can detoxify a wide variety of hydroperoxides, including lipid-derived species (LOOHs). Murine leukemia L1210 cells were grown in 1% serum media without [L.Se(-)] and with [L.Se(+)] selenium supplementation. L.Se(-) cells expressed 10- to 20-fold lower GPX and PHGPX activities than L.Se(+) controls and were markedly more sensitive to MC540-mediated photoperoxidation (LOOH formation) and clonally assessed photokilling. Susceptibility of L.Se(-) cells to photoperoxidation and photokilling could be fully reversed to L.Se(+) levels by replenishing Se, and partially reversed by treating with Ebselen, a selenoperoxidase mimetic. Altered lipid composition, greater uptake of MC540, and defective catabolism of H2O2 were all ruled out as possible factors in the elevated photosensitivity of L.Se(-) cells. Human leukemia K562 cells (capable of expressing PHGPX but not GPX) exhibited 5- to 10-fold lower PHGPX activity under Se-deficient relative to Se-sufficient conditions. Although MC540 uptake (nmol/mg lipid) by K562 and L1210 cells was essentially the same, the former were more resistant to photoinactivation. However, like murine counterparts, Se-deficient cells were more susceptible to photoperoxidation and photokilling than Se-sufficient controls. These results clearly demonstrate that GPX and/or PHGPX in L1210 cells and PHGPX in K562 cells play an important cytoprotective role during photooxidative stress. Whether membrane damage due to lipid photoperoxidation is causally related to cell death is not certain; however, the parallel effects of Se deficiency on LOOH formation and cell killing are at least consistent with this possibility.
Securing body sensor networks: Sensor association and key management

Body Sensor Networks can be used to continuously monitor patients' health. However, secure association of sensors with the patient and key management for providing integrity and confidentiality to the sensor readings are essential. We propose a secure discovery protocol based on the synchronised LED blinking pattern, to enable healthcare workers to authorise the sensor-to-patient association. We also propose a novel key distribution and management scheme that uses keychains to establish group keys for body sensor networks and caters for group key update and re-keying to adapt to membership changes. These protocols have been implemented to demonstrate their feasibility and an initial performance evaluation is presented.