Miracle-dz/UniFAR-FTUs huggingface dataset:
Marketing on Social Networks: Content Analysis of Facebook Profiles of Selected Czech E-shops

Purpose of the article: The research focused on the identification of types and frequencies of posts added by e-shops and the reactions of fans to the posts. Three e-shops were analysed: Alza.cz, Czc.cz and Mironet.cz. Several categories were selected as qualitative units of analysis of communication between e-shops and fans, the frequencies of all the selected categories were measured and correlations between selected variables were calculated. Methodology/methods: The main research method was quantitative content analysis, which allows the gathering of large numbers of qualitative data and transforming them into data of quantitative nature that can be the subject of further statistical analysis. In case of interesting quantitative findings, a qualitative explanation was used. Both communication from e-shops to fans and communication from fans to e-shops (and among fans) in the years 2011–2015 were analysed. Scientific aim: The objective of the research presented in this article is based on content analysis to evaluate the level of the Facebook communication of selected Czech e-shops with consumer electronics within 2011–2015 using a quantitative content analysis method. Findings: The results show that the posting frequency of all the analysed e-shops is between 1.5–4 days. The e-shops vary in the most frequent types of posts. Posts that elicited the highest numbers of reactions were characteristic with their viral nature. A strong, statistically significant correlation between the number of fans of the fan page and the frequency of their reactions to the posts was found. Conclusions: All of the analysed e-shops should increase the frequency of contact with their fans through more frequent posting and modification in the content of the posts. Based on findings, the several suggestions for effective and successful managing the Facebook activities are served.
Intellectual Capital, Financial Performance and Market Valuation: An Empirical Investigation of Information Technology Industry in India

The purpose of this article is to investigate the impact of intellectual capital (IC) and its components on the financial performance and market valuation of Information Technology industry in India over the period of 2003–2011. The Value Added Intellectual Coefficient (VAIC) method is used for evaluation of intellectual capital of 22 Information Technology (IT) companies listed in BSE 500. The required data are obtained from the Prowess, a Centre for Monitoring Indian Economy (CMIE) database, empirical analysis is conducted using correlation and regression models are constructed to test the hypotheses. The results showed that the relationships between the performance of a company IC’s and conventional performance indicators are varied and indicate that profitability and intellectual capital are positively associated, whereas no significant relationship is observed between intellectual capital with productivity and market valuation but capital employed efficiency (CEE) which is one of the component of VAIC found significant positive association with productivity and market valuation. The study may serve as a useful input for academician and managers, so that they make proper utilisation of the IC resources in enhancing the value creation capabilities of the companies.
A urokinase‐sensitive region of the human urokinase receptor is responsible for its chemotactic activity

The role of urokinase‐type plasminogen activator (uPA) and its receptor (uPAR/CD87) in cell migration and invasion is well substantiated. Recently, uPA has been shown to be essential in cell migration, since uPA−/− mice are greatly impaired in inflammatory cell recruitment. We have shown previously that the uPA‐induced chemotaxis requires interaction with and modification of uPAR/CD87, which is the true chemoattracting molecule acting through an unidentified cell surface component which mediates this cell surface chemokine activity. By expressing and testing several uPAR/CD87 variants, we have located and functionally characterized a potent uPAR/CD87 epitope that mimics the effects of the uPA–uPAR interaction. The chemotactic activity lies in the region linking domains 1 and 2, the only protease‐sensitive region of uPAR/CD87, efficiently cleaved by uPA at physiological concentrations. Synthetic peptides carrying this epitope promote chemotaxis and activate p56/p59hck tyrosine kinase. Both chemotaxis and kinase activation are pertussis toxin sensitive, involving a Gi/o protein in the pathway.
Influence of modeling structure in probabilistic sequential decision problems

Markov Decision Processes (MDPs) are a classical framework for stochastic sequential decision problems, based on an enumerated state space representation. More compact and structured representations have been proposed: factorization techniques use state variables representations, while decomposition techniques are based on a partition of the state space into sub-regions and take advantage of the resulting structure of the state transition graph. We use a family of probabilistic exploration-like planning problems in order to study the influence of the modeling structure on the MDP solution. We first discuss the advantages and drawbacks of a graph based representation of the state space, then present our comparisons of two decomposition techniques, and propose to use a global approach combining both state space factorization and decomposition techniques. On the exploration problem instance, it is proposed to take advantage of the natural topological structure of the navigation space, which is partitioned into regions. A number of local policies are optimized within each region, that become the macro-actions of the global abstract MDP resulting from the decomposition. The regions are the corresponding macro-states in the abstract MDP. The global abstract MDP is obtained in a factored form, combining all the initial MDP state variables and one macro-state "region" variable standing for the different possible macro-states corresponding to the regions. Further research is presently conducted on efficient solution algorithms implementing the same hybrid approach for tackling large size MDPs.
Proline Accumulation Is Inhibitory to Arabidopsis Seedlings during Heat Stress1[W]

The effect of proline (Pro) accumulation on heat sensitivity was investigated using transgenic Arabidopsis (Arabidopsis thaliana) plants ectopically expressing the Δ(1)-pyrroline-5-carboxylate synthetase 1 gene (AtP5CS1) under the control of a heat shock protein 17.6II gene promoter. During heat stress, the heat-inducible expression of the AtP5CS1 transgene was capable of enhancing Pro biosynthesis. Twelve-day-old seedlings were first treated with heat at 37°C for 24 h to induce Pro and then were stressed at 50°C for 4 h. After recovery at 22°C for 96 h, the growth of Pro-overproducing plants was significantly more inhibited than that of control plants that do not accumulate Pro, manifested by lower survival rate, higher ion leakage, higher reactive oxygen species (ROS) and malondialdehyde levels, and increased activity of the Pro/P5C cycle. The activities of antioxidant enzymes superoxide dismutase, guaiacol peroxidase, and catalase, but not those of glutathione reductase and ascorbate peroxidase, increased in all lines after heat treatment, but the increase was more significant in Pro-overproducing seedlings. Staining with MitoSox-Red, reported for being able to specifically detect superoxide formed in mitochondria, showed that Pro accumulation during heat stress resulted in elevated levels of ROS in mitochondria. Interestingly, exogenous abscisic acid (ABA) and ethylene were found to partially rescue the heat-sensitive phenotype of Pro-overproducing seedlings. Measurement of ethylene and ABA levels further confirmed that these two hormones are negatively affected in Pro-overproducing seedlings during heat stress. Our results indicated that Pro accumulation under heat stress decreases the thermotolerance, probably by increased ROS production via the Pro/P5C cycle and inhibition of ABA and ethylene biosynthesis.
Non-calibrated and real-time human view estimation using a mobile corneal imaging camera

We present a mobile human view estimation system using a corneal imaging technique. Compared to the current eye gaze tracking (EGT) systems, our system does not require per-session calibrations and a frontal view (scene) camera, making it suitable for wearable glass systems because it is easier to use and more socially acceptable due to the lack of a frontal scene camera. Our glasses system consists of a glass frame and a micro eye camera that captures the eye (corneal) reflections of a user. 3D corneal pose tracking is performed for the captured images by using a particle filter-based real-time tracking method leveraged by a 3D eye model and weak perspective projection. We then compute the gaze reflection point (GRP) where the light from the point of gaze (PoG) is reflected, enabling us to identify where a user is looking in a scene image reflected on the corneal surface. We conducted experiments using a standard computer display setup and several real-world scenes, and found that the proposed method performs with considerable accuracy under non-calibrated setups. This demonstrates its potential for various purposes such as the user interface of a glasses systems and the analysis of human perceptions in actual scenes for marketing, environmental design, and quality-of-life applications.
Enterprise Architecture Institutionalization: a Tale of two Cases

The purpose of this research is to examine why organizations with similar objectives and environments at the beginning obtain different outcomes when implementing enterprise architecture (EA) projects and how EA institutionalization process occurs. We conduct a qualitative multiple-case study using the lens of institutional theory through the analysis of intra-organization relations. The results show that the institutional logic of stakeholders can drive EA projects in different directions during the process of EA institutionalization, and thus organizations obtain different project outcomes ultimately. We contribute by extending the knowledge on EA institutionalization from a micro-level perspective, understanding and explaining how the organizational structure was shaped and influenced by stakeholders’ relations, as well as providing insight into stakeholders’ behaviors and activities during the process of EA institutionalization so that practitioners may improve the success rate of EA projects, particularly in the public sector.
Agglomeration Economies, Productivity, and Quality Upgrading

Empirical studies on agglomeration have focused on the identification of its productivity-enhancement effects. A reduction in marginal costs due to agglomeration economies increases the operating profit of firms, which enables them to employ more inputs to produce higher-quality products. This study examines such effects of agglomeration on product quality by using plant-product-level data for Japanese manufacturing. Empirical findings confirm that product quality increases with the market size of regions, suggesting that agglomeration-inducing polices are effective for increasing firms' profits by improving both productivity and product quality. Stated differently, our results indicate that the benefits of agglomeration on profits are underestimated in previous studies by ignoring its contribution to quality upgrading.
Population-based norms for the Mini-Mental State Examination by age and educational level.

OBJECTIVE To report the distribution of Mini-Mental State Examination (MMSE) scores by age and educational level. DESIGN National Institute of Mental Health Epidemiologic Catchment Area Program surveys conducted between 1980 and 1984. SETTING Community populations in New Haven, Conn; Baltimore, Md; St Louis, Mo; Durham, NC; and Los Angeles, Calif. PARTICIPANTS A total of 18,056 adult participants selected by probability sampling within census tracts and households. MAIN OUTCOME MEASURES Summary scores for the MMSE are given in the form of mean, median, and percentile distributions specific for age and educational level. RESULTS The MMSE scores were related to both age and educational level. There was an inverse relationship between MMSE scores and age, ranging from a median of 29 for those 18 to 24 years of age, to 25 for individuals 80 years of age and older. The median MMSE score was 29 for individuals with at least 9 years of schooling, 26 for those with 5 to 8 years of schooling, and 22 for those with 0 to 4 years of schooling. CONCLUSIONS Cognitive performance as measured by the MMSE varies within the population by age and education. The cause of this variation has yet to be determined. Mini-Mental State Examination scores should be used to identify current cognitive difficulties and not to make formal diagnoses. The results presented should prove to be useful to clinicians who wish to compare an individual patient's MMSE scores with a population reference group and to researchers making plans for new studies in which cognitive status is a variable of interest.
Neuropsychological and psychiatric functioning pre- and posthematopoietic stem cell transplantation in adult cancer patients: A preliminary study

The current study characterizes cognitive and psychiatric status in hematopoietic stem cell transplantation (HSCT) patients shortly before and after transplant. Thirty adult patients were assessed prospectively 1–2 weeks before transplantation and 100 days posttransplantation on neuropsychological and psychiatric measures. Before transplant, participants showed mild impairments on several neuropsychological measures, with the poorest performances occurring on learning and attention. Psychiatric functioning was significantly elevated compared with normative data. Significant improvements, however, were observed on neuropsychological measures by 100 days after transplant. Depression and anxiety scores also improved. Candidates for HSCT experienced mild diffuse cognitive dysfunction and psychiatric morbidity before the procedure, but these symptoms significantly improved by 3 months following their transplant in this small sample. Education about these possible pretransplant sequelae and the potential for rebound may be helpful to patients and families as they prepare for this treatment and the recovery period (JINS, 2007, 13, 172–177.)
Plasminogen activator inhibitor‐1 is induced in migrating endothelial cells

It has been proposed that a finely tuned protease‐anti‐protease equilibrium must be mainted during process of cell migration in order to limit extracellular proteolysis to the close proxmity of the cell surface, and therby to prevent excessive extracellular matrix degradation. We have previously shown that urokinase‐type plasminogen activator (u‐PA) activity is induced in microvascular endothelial cells migrating from the edges of a wounded monolayer in vitro (Pepper et al., J. Cell Biol., 105:2535–2541, 1987). By Northern analysis, we now demonstrate that plasminogen activator inhibitor 1 (Pal‐1) mRNA is increased in multiple‐wounded monolayers of bovine microvascular (BME) or aortic (BAE) endothelial cells, with a maximal 7‐ and 9‐fold increase 4 h after wounding, respectively. By in situ hybridization, we demonstrate that the increase in PAI‐1 mRNA in localized to cells at the edge of a wounded BME or BAE cell monolayer. The increase in PAI‐1 mRNA observe in BME cells is independent of cell division and is inhibited by antibodies to basic fibroblast growth factor (bFGF), suggesting that PAI‐1 induction in migrating cells is mediated by the autocrine activity of bFGF. Taken together with our previous observations on the induction of u‐PA, these results support the hypothesis that the proteolytic balance in the pericellular environment of migrating cells is regulated through the concomitant production of proteases and protease inhibitors. © 1992 Wiley‐Liss, Inc.
Monitoring and Inspection of RPKI repositories

iii I hereby declare to have written this thesis on my own. I have used no other literature and resources than the ones referenced. All text passages that are literal or logical copies from other publications have been marked accordingly. All figures and pictures have been created by me or their sources are referenced accordingly. This thesis has not been submitted in the same or a similar version to any other examination board. Abstract Abstract The Internet routing infrastructure is vulnerable to various BGP attacks. To secure inter-domain routing against these threats the IETF working group SIDR has designed the RPKI. The RPKI is a public key infrastructure that provides a trusted mapping from IP prefixes to Autonomous Systems authorized to originate them. This mapping is published in distributed repositories. Relying parties lack an easy way of monitoring a RPKI repository and inspecting its content in detail. This thesis presents the design and implementation of (i) a distributed monitoring system for RPKI repositories and (ii) a web application for inspection of RPKI objects. It also explains the purpose and workings of the RPKI and discusses the structure of RPKI repositories.
Chi-square QQ plot technique for detecting multivariate anomalies in centralized wideband cooperative compressive sensing in the presence of malicious users

This paper presents a novel centralized cooperative scheme which combines compressed sensing (CS) method based on the analog-to-information converter (AIC) with statistical and graphical chi-square Quantile-Quantile (QQ) plot detector. The received signal at every cognitive radio (CR) user in the presence of Additive-White-Gaussian-Noise (AWGN) and intentional interference attack signal (jamming) is transformed in to a digital signal using an Analog-to-Information Converter (AIC). This new scheme consists for detecting anomalies problem using a new method of detection so-called chi-square QQ plot by compressed observations of every cognitive radio (CR) receiver collected in sampling matrix. Cooperative via CR sensing receivers enables the CRs to detect attacks in the presence of AWGN and jamming attack signals. Furthermore, as an interest key point, collaboration between all CR users makes match possible to sample more compressively at every CR receiver. Two hypotheses H0 and H1 are proposed in this paper to know if there is problem of anomalies in the spectrum. Finally, the results obtained show better performance.
Biochemical and immunochemical analysis of Rickettsia rickettsii strains of various degrees of virulence

Six strains of Rickettsia rickettsii from Montana and North Carolina were examined in an effort to identify rickettsial constituents associated with virulence. Fever responses, scrotal reactions, and mortalities of male guinea pigs inoculated intraperitoneally with 1,000 PFU of rickettsial strains revealed that the two Montana patient strains ( Sheila Smith and Norgaard ) and one Montana strain ( Sawtooth female 2) from the wood tick, Dermacentor andersoni, could be placed in the group of highest virulence, the two North Carolina strains (Morgan and Simpson) in the group of lesser virulence, and the Montana strain (HLP) from the rabbit tick, Haemaphysalis leporispalustris , in the group of lowest virulence. The HLP strain was differentiated from the other strains by sodium dodecyl sulfate-polyacrylamide gel electrophoresis followed by staining with Coomassie brilliant blue or with silver. The patient strains could not be differentiated from each other by these procedures. All of the strains apparently had three heat-modifiable proteins. Analysis of proteinase K-digested rickettsial lysates by sodium dodecyl sulfate-polyacrylamide gel electrophoresis suggested that the strains had a complex mixture of polysaccharides. These putative polysaccharides probably were not related to the differences in virulence of the strains, since the patterns for all of the strains were identical. At least five antigens (molecular weights of 128,000, 105,000, 84,000, 30,500, and 20,500) were demonstrated by radioimmune precipitation tests employing extracts from radioiodine-labeled rickettsiae and antibodies from infected guinea pigs. With these same sera a minimum of 14 antigens was detected in these strains by an immunoblotting procedure. The apparent molecular weights of several of the HLP antigens differed from those of the presumed corresponding antigens of the other strains. The electrophoretic techniques utilized in this study were not sufficiently sensitive to demonstrate compositional differences in the patient strains which differed in their virulence for guinea pigs.
Differential involvement of the Mu and Kappa opioid receptors in spatial learning

In order to test the role of mu and kappa opioid receptors (Mu opioid receptor (MOR) and Kappa opioid receptor (KOR)) in hippocampal‐dependent spatial learning, we analyzed genetically engineered null mutant mice missing the functional MOR or KOR gene. Compared to wild‐type mice, the homozygous MOR null mutants exhibited an impairment in the ultimate level of spatial learning as shown in two distinct tasks, the 8‐arm radial‐maze and the Morris water‐maze. Control behaviors were normal. The learning impairment could be associated with the impairment we found in the maintenance of long‐term potentiation in mossy fibers in CA3. In comparison, there was no impairment in spatial learning in our KOR mutants or in mossy fibers (mf) in CA3 region long‐term potentiation (LTP). Our work suggests that the MOR may play a positive role in learning and memory by increasing LTP in CA3 neurons.
Molecularly imprinted composite cryogel for albumin depletion from human serum

A new composite protein‐imprinted macroporous cryogel was prepared for depletion of albumin from human serum prior to use in proteom applications. Polyhydroxyethyl‐methacylate‐based molecularly ımprinted polymer (MIP) composite cryogel was prepared with high gel fraction yields up to 83%, and its morphology and porosity were characterized by Fourier transform ınfrared, scanning electron microscopy, swelling studies, flow dynamics, and surface area measurements. Selective binding experiments were performed in the presence of competitive proteins human transferrin (HTR) and myoglobin (MYB). MIP composite cryogel exhibited a high binding capacity and selectivity for human serum albumin (HSA) in the presence of HTR and MYB. The competitive adsorption amount for HSA in MIP composite cryogel is 722.1 mg/dL in the presence of competitive proteins (HTR and MYB). MIP composite cryogel column was successfully applied in the fast protein liquid chromatography system for selective depletion of albumin in human serum. The depletion ratio was highly increased by embedding beads into cryogel (85%). Finally, MIP composite cryogel can be reused many times with no apparent decrease in HSA adsorption capacity. Copyright © 2012 John Wiley & Sons, Ltd.
Modularity-based Dynamic Community Detection

In this project, we designed a modularity-based dynamic community detection method, which keeps tracking the community structure of a dynamic network with very low computing complexity in updating the community structure while the network changing dynamically, and we implemented our algorithm using Java. Furthermore, we generated random dynamic networks that have the community structures with different parameters as our experiment dataset. Extensive experiments have been taken to evaluate our method in terms of accuracy and efficiency. The experiment result shows that, comparing with Louvain algorithm, our method could greatly enhance the efficiency without jeopardizing much of the accuracy. Although we got a pretty good results from our experiments, we only implemented our method on our own generated dataset. For future work, we might want to test our method on real public dataset. In the real public dynamic networks, there might be more specific dynamic change cases other than the cases covered by our method, so that we might need to dig into more specific other dynamic cases and find out the solutions.