Miracle-dz/UniFAR-FTUs huggingface dataset:
Proposing a Features Extraction based on Classifier Selection to Face Recognition and Image Processing

feature is a Gabor response of image with a different tuple (x, k, ). We use a pre-processing whereby we can use a fixed point x for all images without missing of the generality. Eight orientation frequency values are selected for  parameter. Five spatial frequency values are also selected for domain of k parameter. So we reach a k Gabor-wavelet based feature space. Also to get rid of the curse of dimensionality problem again without loss of the generality we omit the versatility of values in the k parameter. Indeed we compute the similarity of a pair faces in two images by averaging their similarity defined for all possible values of k parameter for a given  parameter. Then considering the similarities of as a matrix we produce eight matrices for eight different  parameters. By considering each of these matrices as a classifier we finally use an ensmble mechanism to aggregate them into final classification. We turn to a weighted majority average voting classifier ensemble to handle the problem. We show that
Geometric phase for fermionic quasiparticles scattering by disgyration in superfluids

We consider a Volovik's analogue model for the description of topological defects in a superfluid and we investigate the scattering of quasiparticles in this background. The analogue of the gravitational Aharonov-Bohm effect in this system is found. An analysis of this problem employing loop variables is considered and corroborates the existence of the Aharonov-Bohm effect in this system. The results presented here may be used to study the Aharonov-Bohm effect in superconductors.
Number 2 Summer 1996 69 THE EFFECT OF EQUITY-FOR-DEBT SWAPS ON SECURITY RETURNS : SOME NEW EVIDENCE

This study re-examines the effects of equity-for-debt swaps on security returns. Special attention is paid to the effects of the swaps across industries and calendar years. The results indicate that the market reactions to such swaps after 1984 (Deficit Reduction Act) are not significantly different than those before 1984. Moreover, we find that although there is a decrease in alpha and increase in beta of the market model during the announcement period, as expected, beta declines in the post swap period.
Using Technology to Teach Gifted Students in a Heterogeneous Classroom

The answer to educating gifted and talented students in heterogeneous classrooms may lie, at least partially, in using instructional technology to motivate learning and enrich lessons. This case study explores one aspect of effective instruction for gifted second graders during lessons conducted in their general education classrooms. This chapter summarizes the development and delivery, students’ performance and perceptions, and professional implications of an elementary science lesson utilizing interactive whiteboard technology to convey science content and elicit participation. It also emphasizes the importance of teacher educators’ modeling the use of interactive whiteboards for the purpose of differentiating instruction in teacher training programs to better prepare future teachers for the diverse learners who will fill their classrooms.
Combined use of cyclophosphamide and Chalone 19-peptide in experimental breast cancer

Background Cyclophosphamide is a potent anticancer drug, but its clinical utility is limited because of its severe side effects, in particular liver damage. Chalone 19-peptide induces apoptosis of tumor cells and inhibits tumor growth. The present study investigated the antitumor effects of a combination of cyclophosphamide and Chalone 19-peptide in experimental breast cancer. Methods An animal model of breast cancer was developed, consisting of an MDA-MB-231 cell line implanted in the nude mouse. Eight doses of a combination of cyclophosphamide 50 mg/kg or 100 mg/kg and Chalone 19-peptide 6.6 mg/kg were administered, and the mice were euthanized 28 days after the final drug injection. Histopathologic analysis of tumor size, metastasis, and apoptosis of cancer cells was performed. Control mice were injected intraperitoneally with either cyclophosphamide alone or the same volume of solvent. Results Tumor sizes in the treatment groups were smaller than in the controls. No metastasis was found in the groups treated with cyclophosphamide and Chalone 19-peptide, but lung metastasis was found in controls. Liver damage in the groups treated with cyclophosphamide was more serious than in the other groups. Conclusion Addition of Chalone 19-peptide can improve the ability of cyclophosphamide to inhibit tumor growth and also reduces side effects.
Internet as Need or Addiction Amongst Pakistani Youth; Exploring The Use Of Internet At University Level Students

A collection of different interconnected small or large networks is called an Internet. It is a speedy high way that connects multiple regions. Each region can have one or more than one networks. Internet has become more influential tool to minimize the communication gap all over the world. Internet service providers (ISPs) are providing cheap, fast and good communication services. Technology is playing important role in the growth of Internet users. The easy and cheap availability of computers, laptops, mobiles and Internet services may cause Internet addiction. Internet addiction refers to extreme use of Internet which seems unmanageable in routine life matters, health, attitude, and relationships. Too much use of Internet affects the students spiritually, emotionally, morally and educationally. We have investigated the relationship between problems and measures of Internet addiction among 1000 university level students in the current study. Data was collected through questionnaires filled individually by every student. Results indicate that a large number of students waste their time on chatting and visiting useless sites. Moreover, interpersonal, academic and health problems were found. The reasons of positive and negative impacts of Internet addiction are also found. Survey shows that a number of students are unaware to use the Internet properly. It has been observed that the male students are
Nonlinear transmission and phase noise tolerance of different 8-ary constellations using Viterbi-Viterbi carrier phase estimation

The nonlinear transmission and phase noise tolerance performance of three different 8-ary constellations (8PSK, star-shaped 8QAM and circular 8QAM) in coherent optical communication systems are investigated with the improved Viterbi-Viterbi algorithms for carrier phase estimation and radius-directed linear Kalman filter for polarization de-multiplexing.
Identification of Plastoglobules as a Site of Carotenoid Cleavage

Carotenoids play an essential role in light harvesting and protection from excess light. During chloroplast senescence carotenoids are released from their binding proteins and are eventually metabolized. Carotenoid cleavage dioxygenase 4 (CCD4) is involved in carotenoid breakdown in senescing leaf and desiccating seed, and is part of the proteome of plastoglobules (PG), which are thylakoid-associated lipid droplets. Here, we demonstrate that CCD4 is functionally active in PG. Leaves of Arabidopsis thaliana ccd4 mutants constitutively expressing CCD4 fused to yellow fluorescent protein showed strong fluorescence in PG and reduced carotenoid levels upon dark-induced senescence. Lipidome-wide analysis indicated that β-carotene, lutein, and violaxanthin were the principle substrates of CCD4 in vivo and were cleaved in senescing chloroplasts. Moreover, carotenoids were shown to accumulate in PG of ccd4 mutant plants during senescence, indicating translocation of carotenoids to PG prior to degradation.
Improving the customer configuration update process by explicitly managing software knowledge

The implementation and continuous support of a software product at a customer with evolving requirements is a complex task for a product software vendor. There are many customers for the vendor to serve, all of whom might require their own version or variant of the application. Furthermore, the software application itself will consist of many (software) components that depend on each other to function correctly. On top of that, these components will evolve over time to meet the changing needs of customers. To alleviate this problem we propose to alleviate the software release and deployment effort and reduce risks associated with it. This will be achieved by explicitly managing typical knowledge about the software product, such as configuration and dependency information, thereby allowing software vendors to improve the customer configuration updating process. The proposed solution of knowledge management at both the customer and vendor site, is validated through industrial case studies.
Challenges for Provenance in Cloud Computing

Many applications which require provenance are now moving to cloud infrastructures. However, it is not widely realised that clouds have their own need for provenance due to their dynamic nature and the burden this places on their administrators. We analyse the structure of cloud computing to identify the unique challenges facing provenance collection and the scenarios in which additional provenance data could be useful.
Minimum k-way cuts via deterministic greedy tree packing

We present a simple and fast deterministic algorithm for the minimum k-way cut problem in a capacitated graph, that is, finding a set of edges with minimum total capacity whose removal splits the graph into at least k components. The algorithm packs O(mk3 log n) trees. Each new tree is a minimal spanning tree with respect to the edge utilizations, and the utilization of an edge is the number of times it has been used in previous spanning trees divided by its capacity. We prove that each minimum k-way cut is crossed at most 2k-2 times by one of the trees. We can enumerate all such cuts in ~O(n2k) time, which is hence the running time of our algorithm producing all minimum k-way cuts. The previous fastest deterministic algorithm of Kamidoi et al. [SICOMP'06] took O(n(4+o(1))k) time, so this is a near-quadratic improvement. Moreover, we essentially match the O(n(2-o(1))k) running time of the Monto Carlo (no correctness guarantee) randomized algorithm of Karger and Stein [JACM'96].
Correlation of Unilateral Sporadic Vestibular Schwannoma Growth Rates with Genetic and Immunohistochemical Abnormalities

Background: Unilateral sporadic vestibular schwannomas (USVS) are caused by inactivating somatic mutations of both alleles of the neurofibromatosis 2 (NF2) tumor suppressor gene. Unilateral sporadic vestibular schwannomas have a widely-varying growth patterns whose causes are poorly understood. Objective: We examined the relationships between an index of USVS growth, and genetic abnormalities and pathological growth indices. Subjects and Methods: Single-strand conformational polymorphism analysis and heteroduplex methods were used to screen for mutations in all 17 exons of the NF2 gene in USVS from 63 patients. Loss of heterozygosity (LOH) analyses were also carried out. An index of USVS growth (clinical growth index, CGI) was calculated as maximum tumor diameter divided by duration of symptoms. The immunohistochemical growthindices were based on monoclonal antibodies to Ki-67 and another tumor cell proliferation marker (platelet-derived growth factor (PDGF)). Results: CGI was highly variable and did not significantly decrease with increasing age at diagnosis. Either somatic NF2 mutations or LOH was found in 88% of tumors. PDGF and Ki-67 increased significantly with increasing age at diagnosis, and PDGF was lower in tumors with LOH than in those without LOH. In multiple linear regression analysis, CGI was significantly higher in people with higher PDGF, after accounting for age at diagnosis and LOH. Conclusion: An index of USVS growth increases with increasing PDGF, after accounting for age and LOH.
Crosstalk-driven placement based on genetic algorithms

Deep-Sub-Micron (DSM) technologies of 0.18 micron and below enable the integration of logical circuits having more than 10 million gates. In such a DSM technology, it's important to consider improving crosstalk noise at initial phase of layout design. In this paper, we proposed a novel crosstalk-driven placement algorithm. The proposed algorithm based on genetic algorithm (GA) has a two-level hierarchical structure. For selection control, new objective functions are introduced for improving crosstalk noise, reducing power consumption, improving interconnection delay and dispersing wire congestion. Studies on floor planning and cell placement have been reported as being applications of GA to the LSI layout problem. However, no studies have ever seen the effect of applying GA in consideration of power, delay and congestion. Results show improvement of 6.7% for crosstalk noise on average.
The Dutch background of Bernard Mandeville's thought: escaping the Procrustean bed of neo-Augustinianism

This paper argues that the neo-Augustinian outlook of the French moral tradition has been used for too long as a Procrustean bed, thereby depreciating the Dutch background of Mandeville's thought. In particular, Johan and Pieter de la Court were an important source of inspiration for Mandeville. In trying to come to terms with commercial society, the brothers developed a positive theory of interest and the passions, emphasizing the social utility of self-interest and honour in securing the health and wealth of the commonwealth. By combining elements from neo-Augustinian and Dutch commercial republican discourses, Mandeville devised a new logic for interpreting the nature and growth of commercial society, which was to inspire intense debate.
Eye Movements Converge on Vanishing Points during Visual Search

The vanishing point seems to be a useful cue for understanding scenes at a glance. The closer the objects are, the smaller their sizes become. Because the resolution of central vision is higher than that of peripheral vision, seeing a vanishing point enables individuals to perceive the whole scene. Here, we examined whether vanishing points attract eye movements during visual search. In Experiment 1, we conducted a free-viewing task to examine whether vanishing points play a significant role. In Experiment 2, the participants searched for a Gabor patch that was embedded in manmade or natural scenes. In Experiment 3, to investigate the robustness of the vanishing point effect, visual search was conducted using simpler geometric backgrounds. We observed that eye movements converged around vanishing points, and that the first fixations are also located around them. These results suggest that vanishing points as well as salient locations can capture eye movements, and eye movements are guided by such environmental structures.
Toward understanding understanding : The importance of feeling understood in relationships

People want to be understood by others, yet their perceptions of being understood are only modestly related to actually being understood by others. In this article, we provide an integrative theoretical model and review of research on the processes that contribute to feeling understood and misunderstood by others. The model highlights situational, dispositional, and relational factors that influence feeling understood and underscores the importance of feeling understood for relationship and personal well-being. We also clarify definitional and measurement issues that have impeded progress in prior research.
Comprensión de las hipótesis del análisis de varianza por estudiantes de psicología Understanding the hypotheses in variance analysis by psychology students

Resumen En este trabajo analizamos la forma en que los estudiantes universitarios establecen las hipotesis el analisis de varianza. Para ello realizamos un analisis semiotico de las respuestas dadas por un grupo de 224 estudiantes de Psicologia de la Universidad de Huelva, Espana, en un problema abierto, usando como marco teorico el enfoque ontosemiotico de la cognicion matematica. Este analisis nos permite identificar los objetos y procesos matematicos utilizado s , y los conflictos semioticos relacionados con los objetos que intervienen en el planteamiento de las hipotesis estadisticas. Abstract In this paper we analyse how undergraduate students establish the hypotheses in analysis of variance. We carry out a semiotic analysis of the answers given by 224 psychology students at the University of Huelva, Spain to an open problem, using as theoretical framework the ontosemiotic approach to mathematical cognition. This analysis allows us to identify the mathematical objects and processes used, and the semiotic conflicts related to the objects involved in the setting of statistical hypothesis.
Unified Multilevel Adaptive Finite Element Methods for Elliptic Problems

Many elliptic partial differential equations can be solved numerically with near optimal efficiency through the uses of adaptive refinement and multigrid solution techniques. It is our goal to develop a more unified approach to the combined process of adaptive refinement and multigrid solution which can be used with high order finite elements. The basic step of the refinement process is the bisection of a pair of triangles, which corresponds to the addition of one or more basis functions to the approximation space. An approximation of the resulting change in the solution is used as an error indicator to determine which triangles to divide. The multigrid iteration uses a red-black Gauss-Seidel relaxation in which the black relaxations are used only locally. The grid transfers use the change between the nodal and hierarchical bases. This multigrid iteration requires only O(N) operations, even for highly nonuniform grids, and is defined for any finite element space. The full multigrid method is an optimal blending of the processes of adaptive refinement and multigrid iteration. So as to minimize the number of operations required, the duration of the refinement phase is based on increasing the dimension of the approximation space by some fixed factor which is determined to be the largest possible for the given error-reducing power of the multigrid iteration. The result is an algorithm which (i) uses only O(N) operations with a reasonable constant of proportionality, (ii) solves the discrete system to the accuracy of the discretization error, (iii) is able to achieve the optimal order of convergence of the discretization error in the presence of singularities. Numerical experiments confirm this for linear, quadratic and cubic elements. It is believed that the method can also be applied to more practical problems involving systems of PDE's, time dependence, and three spatial dimensions.
Formation and Biopharmaceutical Characterization of Electrospun PVP Mats with Propolis and Silver Nanoparticles for Fast Releasing Wound Dressing

Antibacterial, antiviral, antifungal, antioxidant, anti-inflammatory, and anticancer activities of propolis and its ability to stimulate the immune system and promote wound healing make it a proper component for wound dressing materials. Silver nanoparticles are recognized to demonstrate strong antiseptic and antimicrobial activity; thus, it also could be considered in the development of products for wound healing. Combining propolis and silver nanoparticles can result in improved characteristics of products designed for wound healing and care. The aim of this study was to formulate electrospun fast dissolving mats for wound dressing containing propolis ethanolic extract and silver nanoparticles. Produced electrospun nano/microfiber mats were evaluated studying their structure, dissolution rate, release of propolis phenolic compounds and silver nanoparticles, and antimicrobial activity. Biopharmaceutical characterization of electrospun mats demonstrated fast release of propolis phenolic compounds and silver nanoparticles. Evaluation of antimicrobial activity on Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Bacillus subtilis, Bacillus cereus, and Candida albicans strains confirmed the ability of electrospun mats to inhibit the growth of the tested microorganisms.
Potential benefits and hazards of physical activity and exercise on the gastrointestinal tract

This review describes the current state of knowledge on the hazards of exercise and the potential benefits of physical activity on the gastrointestinal tract. In particular, acute strenuous exercise may provoke gastrointestinal symptoms such as heartburn or diarrhoea. A substantial part (20–50%) of endurance athletes are hampered by these symptoms which may deter them from participation in training and competitive events. Nevertheless, these acute symptoms are transient and do not hamper the athlete's health in the long term. The only exception is repeated gastrointestinal bleeding during training and competition, which in the long term may occasionally lead to iron deficiency and anaemia. In contrast, repetitive exercise periods at a relatively low intensity may have protective effects on the gastrointestinal tract. There is strong evidence that physical activity reduces the risk of colon cancer by up to 50%. Less convincing evidence exists for cholelithiasis and constipation. Physical activity may reduce the risk of diverticulosis, gastrointestinal haemorrhage, and inflammatory bowel disease although this cannot be substantiated firmly. Up to now, underlying mechanisms are poorly understood although decreased gastrointestinal blood flow, neuro-immuno-endocrine alterations, increased gastrointestinal motility, and mechanical bouncing during exercise are postulated. Future research on exercise associated digestive processes should give more insight into the relationship between physical activity and the function of the gastrointestinal tract.
Plasminogen activator inhibitor 1 may promote tumour growth through inhibition of apoptosis

Plasminogen activator inhibitor 1 (PAI-1) has been found to be a bad prognostic factor in a number of tumours but the reason has not been fully explained. The human prostate cancer cell line PC-3 and the human promyelocytic leukaemia cell line HL-60 were used in this study to determine the effect of PAI-1 on spontaneous and induced apoptosis in culture. Apoptosis was induced with camptothecin or etoposide. Addition of a stable variant of PAI-1 or wild-type PAI-1 to these cells resulted in a significant inhibition of apoptosis. In contrast, both the latent form of PAI-1 and the stable variant of PAI-1 inactivated by a specific neutralizing monoclonal antibody, or the stable variant of PAI-1 in a complex with recombinant urokinase did not inhibit apoptosis. This indicated that the inhibitory activity of PAI-1 was required for its anti-apoptotic effect but the urokinase-type plasminogen activator receptor was not involved. These findings provide an explanation for the bad prognostic correlation of high PAI-1 levels in tumours. The anti-apoptotic effect was also found in non-tumoural cells including human umbilical vein endothelial cells and the benign human breast epithelial cell line MCF-10A, suggesting that this is a novel physiologic function of PAI-1. © 2000 Cancer Research Campaign
Design of sparse constrained FIR filter using orthogonal matching pursuit method

In this paper, the design of sparse constrained linear phase FIR filter is investigated. First, the design problem of sparse constrained FIR filter is described. Then, the orthogonal matching pursuit (OMP) method is presented to design sparse constrained FIR filter. Next, two kinds of filters are studied. One is the sparse FIR notch filter with controlled null width, the other is the sparse low-pass filter with derivative constraints. Finally, some numerical examples are demonstrated to show the effectiveness of the proposed design methods.