Miracle-dz/UniFAR-FTUs huggingface dataset:
Amniotic mesenchymal stem cells have robust angiogenic properties and are effective in treating hindlimb ischaemia.

AIMS In this study, we aimed to evaluate whether human amniotic mesenchymal stem cells (AMMs) have angio-vasculogenic properties and to determine their therapeutic effects on experimental ischaemia. Although AMMs are a promising source of stem cells, their angio-vasculogenic properties are not fully understood. METHODS AND RESULTS We have characterized AMMs by quantitative real-time polymerase chain reaction, Matrigel tube formation assays, and various in vitro endothelial differentiation assays. AMMs expressed significantly higher levels of representative proangiogenic genes, vascular endothelial growth factor-A, angiopoietin-1, hepatocyte growth factor, and fibroblast growth factor-2 (FGF-2) than adipose-derived mesenchymal stem cells. In addition, the anti-apoptotic factor Akt-1 was highly expressed in the AMMs. Cells were directly transplanted into the ischaemic hindlimbs of mice to evaluate their angio-vasculogenic and therapeutic effects. They spontaneously differentiate into vascular-like structures and exhibit endothelial-specific genes and proteins. In an in vivo study on hindlimb ischaemia, implantation of AMMS augmented blood perfusion and capillary density, indicating AMM-augmented neovascularization. The engraftment rate of AMMs was high, and the transplanted AMMs showed vasulogenic potential. CONCLUSION AMMs are not only markedly angiogenic but also vasculogenic, thus ameliorating hindlimb ischaemia. Our data suggest that AMMs have considerable therapeutic effects on ischaemic hindlimb through high angiogenic and engraftment abilities.
Sequential Michael-Michael-aldol additions for easy, one-pot, 2 + 2 + 2 construction of polyfunctionalized cyclohexanols.

The redox potentials for the Ru(IV)/Ru(III) and the Ru(III)/ Ru(I1) couples of complex 1 display potential shifts of 59 mV per pH unit, consistent with one-electron, one-proton transfers. In further cyclic voltammetric studies, when benzyl alcohol was added to an aqueous solution of the [(bpy)2Ru(IV)(0)(PEt3)]2+ complex, the electrochemical potential for the onset of alcohol oxidation was less positive by 600 mV and appeared at the redox potential of the Ru(IV)/Ru(III) couple of the complex, as evidenced by an enhanced peak current of the anodic wave. This well-behaved, chemically reversible oxidation chemistry of the [(bpy)2Ruwv(0)(PEt3)]+2 complex is significant, for it suggests the possibility of utilizing such complexes as electron-transfer agents in catalytic organic substrate oxidation applications. The reactivity of [(bpy)2Ru1v(0)(PR3)]2+ complexes with organic substrates is very sensitive to the nature of the phosphine ligand. Through spectroscopic monitoring, we have determined that the Ru(IV)-oxo complexes serve as reagents in the oxidation of organic substrates. Upon addition of alcohol to an aqueous solution of a cis-phosphine-ruthenium(IV)-oxo complex, spectral changes are observed in which the spectrum of the Ru(IV)QXO species is converted to the spectrum of the corresponding Ru(11)-aquo species. Notably, there is a marked difference in the rate of alcohol oxidation depending on the phosphine ligand employed. With [(bpy)2Ru1v(0)(PPh3)]2+ as the catalyst, the oxidation of benzyl alcohol has a second-order rate constant of 1.9 X M-' s-', while the reaction involving [(bpy)2Ru1v(0)(PEt3)12+ has a second-order rate constant of 1.1 X M-' s-'. In general, we have determined that [(bpy)2Ru1V(0)(PEt3)]2+ oxidizes a variety of organic and inorganic substrates, including isopropyl alcohol to acetone, propionaldehyde to propionic acid, and triphenylphosphine to triphenylphosphine oxide.
Connecting minds: Computer-mediated communication and scientific work

This article summarizes the preliminary findings from a recent study of scientists in four disciplines with regard to computer‐mediated communication (CMC) use and effects. Based on surveys from 333 scientists, we find that CMC use is central to both professional and research‐related aspects of scientific work, and that this use differs by field. We find that e‐mail use focuses on coordination activities, and its biggest effect is helping to integrate scientists into professional networks. We do not find gender differences in use, but there is some evidence that e‐mail is having a differential, positive effect for women. Furthermore, CMC use is positively associated with scientific productivity and collaboration.
Evaluation of local features for person re-identification in image sequences

In this paper we present a comparative study of local features for the task of person (re) identification. A combination of state of the art interest point detectors and descriptors is evaluated. The experiments are performed on a novel dataset which we make publicly available for future research in this area. The results indicate that there are significant differences between the evaluated descriptors, with GLOH and SIFT outperforming both Shape Context and SURF descriptors. The evaluated interest point descriptors perform equally well, with a slight advantage for the Hessian-Laplace detector. The Harris-Affine and Hessian-Affine affine invariant region detectors do not provide any performance advantage and therefore do not justify their additional computational expense.
Psychometric evaluation of the Serbian dictionary for automatic text analysis - LIWCser

LIWC (Linguistic Inquiry and Word Count) is widely used word-level content analysis software. It was used in large number of studies in the fields of clinical, social and personality psychology, and it is adapted for text analysis in 11 world languages. The aim of this research was to validate empirically newly constructed adaptation of LIWC software for Serbian language (LIWCser). The sample of the texts consisted of 384 texts in Serbian and 141 texts in English. It included scientific paper abstracts, newspaper articles, movie subtitles, short stories and essays. Comparative analysis of Serbian and English version of the software demonstrated acceptable level of equivalence (ICCM=.70). Average coverage of the texts with LIWCser dictionary was 69.93%, and variability of this measure in different types of texts is in line with expected. Adaptation of LIWC software for Serbian opens entirely new possibilities of assessment of spontaneous verbal behaviour that is highly relevant for different fields of psychology.
Principal Leadership for School, Family, and Community Partnerships: The Role of a Systems Approach to Reform Implementation

Based on data from a longitudinal multiple case study, this article describes how district-level expectations, policies, and practices affected principals’ responses to an external reform in two school districts, one urban and one suburban. The specific reform highlighted is a comprehensive family and community engagement approach developed by researchers at the National Network of Partnership Schools (NNPS). The study’s findings suggest that district leaders facilitated principals’ effective implementation of the NNPS reform by creating clear expectations, establishing coherent contexts, and providing tangible supports and rewards. Over time, these actions reduced resistance and increased buy-in among school leaders. Implications of these findings for education research and reform development are discussed.
Recidivism Among People Sentenced to Community Service in Finland

The influence of community service on recidivism is studied by comparing the subsequent recidivism of people sentenced to community service with the recidivism of people sentenced to prison for a maximum of 8 months. The distributon of sex, age, principal offence, times in prison and length of sentence in the prison group was analogous to that of the community service group. The follow-up period was 5 years. The analysis shows, compared to recidivism after prison sentences, was slightly lower. In the light of this, community service seems to be a suitable sanction in particular for sentenced people lacking previous prison experience.
Fiscal Stimulus to the Rescue? Short-Run Benefits and Potential Long-Run Costs of Fiscal Deficits

This paper uses the IMF's Global Integrated Monetary and Fiscal Model to compute shortrun multipliers of fiscal stimulus measures and long-run crowding-out effects of higher debt. Multipliers of two-year stimulus range from 0.2 to 2.2 depending on the fiscal instrument, the extent of monetary accommodation and the presence of a financial accelerator mechanism. A permanent 0.5 percentage point increase in the U.S. deficit to GDP ratio raises the U.S. tax burden and world real interest rates in the long run, thereby reducing U.S. and rest of the world output by 0.3-0.6 and 0.2 percent, respectively.
Skin suture marks.

Abstract 1. 1. The medical literature has been surveyed to find the causes of suture marks. 2. 2. The several causes of suture marks are listed and discussed. 3. 3. Clinical experimental work relating to the suture size, needle size and the number of days the sutures are in place are reported. 4. 4. Animal experimentation was done on pigs to investigate suture marks, with negative results. 5. 5. A survey of wound healing and wound tensile strength is included.
Latent Dependency Forest Models

Probabilistic modeling is one of the foundations of modern machine learning and artificial intelligence. In this paper, we propose a novel type of probabilistic models named latent dependency forest models (LDFMs). A LDFM models the dependencies between random variables with a forest structure that can change dynamically based on the variable values. It is therefore capable of modeling context-specific independence. We parameterize a LDFM using a first-order non-projective dependency grammar. Learning LDFMs from data can be formulated purely as a parameter learning problem, and hence the difficult problem of model structure learning is circumvented. Our experimental results show that LDFMs are competitive with existing probabilistic models.
Extension of Stochastic Volatility Equity Models with Hull-White Interest Rate Process

We present an extension of stochastic volatility equity models by a stochastic Hull--White interest rate component while assuming non-zero correlations between the underlying processes. We place these systems of stochastic differential equations in the class of affine jump-diffusion--linear quadratic jump-diffusion processes so that the pricing of European products can be efficiently performed within the Fourier cosine expansion pricing framework. We compare the new stochastic volatility Schobel--Zhu--Hull--White hybrid model with a Heston--Hull--White model, and also apply the models to price hybrid structured derivatives that combine the equity and interest rate asset classes.
Relations among personality scales of aggression, violence, and empathy: Validational evidence bearing on the risk of eruptive violence scale

This study was designed to explore relations of emotional empathy (two scales) with aggression and violence (three scales). An initial study investigated validity of one of the violence scales, the Risk of Eruptive Violence Scale (REV), by comparing individual REV scores with individual histories of criminal violence for a sample of incarcerated juveniles. Validity of the REV was supported by a very strong correlation of . 71 between REV scores and the amount of criminal violence in this homogeneous sample. The second study yielded positive intercorrelations among measures of aggression and violence, positive intercorrelations among measures of emotional empathy, and negative correlations (ranging from –.22 to –.50, P < .05) of measures of aggression and violence with measures of emotional empathy. Analyses of the five scales in terms of the Pleasure-Arousability-Dominance (PAD) Temperament Model helped explain similarities of the emotional empathy scales with other individual difference measures of prosocial orientation (e.g., affiliation). PAD analyses also explained some paradoxical effects of experimental "empathy arousal" on aggression toward victims. Aggr. Behav. 23:433–445, 1997. © 1997 Wiley-Liss, Inc.
Longitudinal analysis of ability–job complexity fit and job change.

The study examines job mobility as a function of congruence between individuals' abilities and their job's complexity. The gravitational hypothesis (McCormick, DeNisi, & Staw, 1979; McCormick, Jeanneret, & Mecham, 1972), a keystone of this objective, posits that individuals will sort into jobs that are commensurate with their ability level. This study used various analytical techniques to examine the relationship between ability, person-job fit, and occupational mobility. First, the gravitational hypothesis was tested. Second, the direction of mismatch between ability and job complexity was hypothesized to predict direction of change in job complexity over time. Two national, longitudinal databases, the National Longitudinal Study of the Class of 1972 (NLS-72) and the National Longitudinal Survey of Labor Market Experience-Youth Cohort (NLSY), were used to test these relationships. Results were supportive in both the NLS-72 and the NLSY. Additional analyses examined the difference between measures of objective job complexity and subjective job complexity (Gerhart, 1988) for the gravitational process and the difference in employer- and employee-initiated job changes. These results have implications for employers, vocational counselors and job applicants. Suggestions for improving the ability-job complexity match are provided.
Determination of polymerization shrinkage of different composites using a photoelastic method.

PURPOSE To investigate the polymerization shrinkage stress of different low viscous bulk composites (SDR, Venus Bulk Fill, X-tra Base, Filtek Bulk Fill) in comparison to a conventional flowable composite (Filtek Supreme XTE Flow) and to high viscous bulk and conventional composites (Filtek Supreme XTE, GrandioSO, Tetric EvoCeram, Tetric EvoCeram BulkFill, Venus Diamond, Venus Pearl), as well as to an experimental composite (Ormocer) and a sonic-activated bulk fill composite (Sonicfill), by means of photoelastic investigation. METHODS To ensure bonding of the resin composite, cylindrical cavities (Ø 4mm) in araldite B epoxide resin plates (40 × 40 × 4 mm3) were pre-treated with the Rocatec system. Embedded in araldite plates, six resin composite specimens of each material were exposed for 60 seconds from one side (Translux Power Blue, 1,000 mW/cm2). The samples were stored, light-protected and dry (23°C). Polymerization shrinkage stress data (MPa) were calculated 15 minutes, 1 and 24 hours after light exposure, based on the diameter of the isochromatic curves of first order, obtained from araldite plates. Statistical analysis was performed with the Wilcoxon-test and Bonferroni correction (P< 0.0006). RESULTS After 15 minutes/1 hour, the mean polymerization stress values calculated were:for SDR 4.4 ± 0.1/4.4 ± 0.2 MPa; Venus Bulk Fill 4.8 ± 0.3/4.9 ± 0.3 MPa; X-tra Base 6.5 ± 0.3/6.7 ± 0.3 MPa; Filtek Bulk Fill 4.9 ± 0.3/4.9 ± 0.3 MPa; Filtek Supreme XTE Flow 8.0 ± 0.3/8.2 ± 0.2 MPa; Filtek Supreme XTE 7.1 ± 0.1/7.4 ± 0.2 MPa; GrandioSO 6.3 ± 0.4/6.3 ± 0.3 MPa; Tetric EvoCeram 4.5 ± 0.1/4.6 ± 0.1 MPa; Tetric EvoCeram BulkFill 4.9 ± 0.2/5.0 ± 0.3 MPa; Venus Diamond 3.7 ± 0.3/3.8 ± 0.3 MPa; Venus Pearl 3.9 ± 0.2/4.0 ± 0.2 MPa, Sonicfill 5.4 ± 0.2/5.6 ± 0.3 MPa; and Ormocer (experimental) 4.1 ± 0.2/4.3 ± 0.2 MPa. After 24 hours, the following mean stress values were obtained:SDR 4.7 ± 0.2 MPa; Venus Bulk Fill 5.1 ± 0.2 MPa; X-tra Base 7.2 ± 0.4 MPa; Filtek Bulk Fill 5.3 ± 0.3 MPa; Filtek Supreme XTE Flow 8.7 ± 0.3 MPa; Filtek Supreme XTE 7.9 ± 0.2 MPa; GrandioSO 7.0 ± 0.4 MPa; Tetric EvoCeram 4.9 ± 0.1 MPa; Tetric EvoCeram BulkFill 5.4 ± 0.3 MPa; Venus Diamond 4.5 ± 0.3 MPa; Venus Pearl 4.5 ± 0.3 MPa, Sonicfill 5.8 ± 0.2 MPa and Ormocer (experimental) 4.5 ± 0.2 MPa. The new and experimental resin composites showed significantly less polymerization shrinkage stress than the conventional resin composite (Filtek Supreme XTE). CLINICAL SIGNIFICANCE Resin composite restoratives differ in their polymerization shrinkage stress development, independent of their viscosity. Some low viscosity bulkfill-restoratives generate less shrinkage stress compared to other conventional or bulk-restoratives. Practitioners should yield to the potential effect of shrinkage stress development, because this might affect marginal integrity in the clinical performance.
SEAP: Secure and efficient authentication protocol for NFC applications using pseudonyms

Authentication protocol plays an important role in the short-range wireless communications for the Near Field Communication (NFC) technology. Due to the shared nature of wireless communication networks, there are several kinds of security vulnerabilities. Recently, a pseudonym-based NFC protocol (PBNFCP) has been proposed to withstand the security pitfalls found in the existing conditional privacy preserving security protocol (CPPNFC). However, this paper further analyzes PBNFCP and shows that it still fails to prevent the claimed security properties, such as impersonation attacks against an adversary, who is a malicious registered user having a valid pseudonym and corresponding private key. In order to overcome these security drawbacks, this paper proposes a secure and efficient authentication protocol (SEAP) for NFC applications using lifetime-based pseudonyms. The proposed SEAP is simulated for the formal security verification using the widely-accepted AVISPA (Automated Validation of Internet Security Protocols and Applications) tool. The simulation results show that SEAP is secure. The rigorous security and performance analysis shows that the proposed SEAP is secure and efficient as compared to the related existing authentication protocols for NFC applications.
Learning to Teach for Social Justice: Measuring Change in the Beliefs of Teacher Candidates

This article speaks to two current trends in teacher education—the press to assess teacher education in terms of measurable outcomes, on one hand, and the growing emphasis on social justice as a theme of teacher education, on the other. The article begins with a discussion of the concept of teacher education for social justice. Then, using Rasch Item Response Theory techniques and analyses, the article shows that certain aspects of the complex construct, “learning to teach for social justice,” can be measured reliably and validly across multiple groups of teacher candidates and graduates using a “Learning to Teach for Social Justice-Beliefs” (LTSJ-B) scale. This scale is part of a suite of teacher preparation surveys, which are in turn, part of a larger portfolio of qualitative, quantitative, and mixed methods studies designed to explore the effects of teacher education and the process of learning to teach. The analyses presented here show that the LTSJ-B scale can detect changes in beliefs related to teaching for social justice over time and across cohorts of teacher candidates. Specifically, we show that the scores of cohorts of exiting teacher candidates far exceeded the scores of entering candidates. We also show that after one year of teaching, graduates of the program maintained these higher scores. The analyses in this article contribute to the argument that although “learning to teach for social justice” is a complex matter that requires complex measures, it can indeed be constructed as a legitimate outcome of teacher education and thus expand the larger agenda to make teacher education accountable for the quality of teachers it prepares.
The interactive effect of attention control and the perceptions of others' entitlement behavior on job and health outcomes

Purpose – The purpose of this research is to examine how attention control moderates the relationship between perceptions of others' entitlement behavior and employee attitudinal, behavioral, and health outcomes.Design/methodology/approach – In study 1, data were collected from 309 employees of a municipality. In the second study, the independent and dependent variables were collected two months apart (and matched) from 584 individuals working in a range of occupations and organizations.Findings – Perceived entitlement behavior was associated with increased tension and depressed mood at work and decreased satisfaction and citizenship for employees low in attention control.Research limitations/implications – The exclusive use of data collected via a survey methodology is a limitation. However, tests of multicollinearity offered no evidence of method inflation. Future research should expand the scope of conceptualization to consider both individual difference (i.e. mood, affect) and contextual (i.e. justice.
Perspectives on cancer therapy: cell cycle blockers and perturbators.

Over the past few decades, remarkable advances have been achieved in cancer therapy, including chemotherapeutic agents, their mode of application and more broader therapeutic strategies. Promising new therapeutic targets have emerged in the past ten years as a result of recent advances in our understanding of the pathobiology of malignant cells, in particular, regarding functions of suppressor oncogene products. Among them, the agents that alter the cell cycle have recently been of particular interest, since cell cycle regulation is basic mechanism underlying cell fate, i.e., proliferation, differentiation or death. Furthermore, the human genome project has made possible the future development of so-called "tailor-made medicine", i.e. the design of appropriate drugs for specific genetic profiles and application of drugs that are tailored to each tumor and patient. In this article, we will introduce and discuss recent progress in the development of agents that influence the cell cycle and their future potential in cancer therapy from three standpoints with our own experimental works; i) the inhibition of cell proliferation and/or induction of differentiation by cyclin-dependent kinase (cdk)-inhibitor, e.g. olomoucin, butyrolactone-I, ii) induction of apoptosis by directing "abortive cell cycle", or the transient upregulation of cdk activity, e.g. flavopiridol, and iii) countering the development of drug resistance by adjunctive administration of cdk-inhibitors with conventional anti-cancer drug, e.g., p21-gene transfer with cisplatin. Conclusively none of these three approaches by itself is satisfactory, and that the effective cancer therapies will require the administration of several agents and/or methods under the design of their synergistic effects.
Exploring the antecedents and consumer behavior consequences of the trait of superstition

In two exploratory studies, a hierarchical model of personality was employed to investigate a number of possible trait antecedents and consumer-behavior–related consequences of superstition. One of the interesting findings was that the antecedents of superstition include a lower need for learning among older adults, higher levels of sports interest, a belief in fate, and a decreased belief in heaven and hell. In addition, the results suggested that the consequences of superstition might include beliefs in astrology, magic, psychokinesis, and the existence of fictitious creatures (e.g., the Loch Ness monster). Evidence suggesting a negative association between superstitious beliefs and attitudes concerning the genetic engineering of food products was also obtained. © 2003 Wiley Periodicals, Inc.