Miracle-dz/UniFAR-FTUs huggingface dataset:
An Algorithm for Constructing a Planar Layout of a Graph with a Regular Polygon as Outer Face

Read’s algorithm for constructing a planar layout of a graph G produces a straight-line embedding of G, by using a sequence of triangulations. Let F denote any face of G. In this paper, Read’s algorithm is modified. A straight-line embedding is constructed in which F forms the outer face, such that its vertices lie on a convex regular polygon. It is proved that the method always works. Usually F is taken as the face of largest degree. The complexity of the algorithm is linear in the number of vertices of G. 1. Read’s Algorithm
Wavelet-based 2 D Multifractal Spectrum with Applications in Analysis of Digital Mammography Images Pepa Ramı́rez and Brani Vidakovic

Breast cancer is the second leading cause of death in women in the United States and at present, mammography is the only proven method that can detect minimal breast cancer. On the other hand, many medical images demonstrate a certain degree of self-similarity over a range of scales. The Multifractal spectrum (MFS) summarizes possibly variable degrees of scaling in one dimensional signals and has been widely used in fractal analysis. In this work, we develop a generalization to two dimensions of MFS and use dynamics of the scaling as discriminatory descriptors to do classification of mammographic images to benign and malignant. Methodology we propose was tested using images from the University of South Florida Digital Database for Screening Mammography (DDSM) (Heat et al. [8]).
Analysis of microstrip leaky wave antenna with FDTD

A new way to calculate the complex propagation constant, /spl gamma/=/spl alpha/+j/spl beta/, of a microstrip leaky wave antenna (MLWA) is presented. The calculated normalized complex propagation constant fits well with the comparison data. The properties of the leaky wave antenna in the first high mode are discussed using the simple cavity theory. It is explained, in principle, why the MLWA has a leaky region and critical frequency. Some simple rules about how to choose the width and permittivity of the MLWA are given.
Modélisation en sémantique

Pour presenter les differents aspects de la modelisation en semantique, nous avons choisi de structurer notre expose par niveaux (lexique, syntagme et phrase, texte ou discours, interpretation et pragmatique) correspondant a une complexite croissante des objets linguistiques a prendre en compte. Les questions que nous nous posons sont les suivantes : Quelles valeurs semantiques peuvent etre associees aux objets linguistiques relevant de ces differents niveaux ? Quelles structures les organisent ? Comment decrire les unes et les autres, c'est-a-dire comment les representer d'un point de vue formel dans une optique de TAL ? Et d'un autre cote, quelles operations permettent de creer ces valeurs et ces structures dans ce que l'on appelle la construction du sens ? C'est cette double problematique representation/operations qui sera le fil conducteur de ce chapitre. Pour chaque niveau, nous presentons d'abord cette double problematique avant de montrer un exemple de modele sur un point particulier, a titre d'illustration.
EFFICIENT PORTFOLIO SELECTION OF SOME ASSETS IN THE NIGERIA MARKET

Abstract: In any financial institution, an optimal portfolio of assets is correctly designed by some methods which include reliable mathematical programs called optimizers. Investors are often faced with the problem of selecting varying choices, as well as optimizing expected returns in the face of a high level of risk. This work therefore employs a quantitative approach to constructing portfolios by using a method of constrained optimization-the Lagrange multiplier method(LMM). The portfolio consisting of three assets namely: Stocks-Nigerian Stock Exchange Indices for a period of 10 years, Cash-Federal Government of Nigeria (FGN) 90 days Treasury Bills and Bonds-Federal Government of Nigeria (FGN) 12 year Bond was constructed. With the aid of a computational soft-package, the LMM was used to obtain an optimal solution for the minimization problem.
Characterization of an aerobic repressor that coordinately regulates bacteriochlorophyll, carotenoid, and light harvesting-II expression in Rhodobacter capsulatus

For most species of purple photosynthetic bacteria, the presence of molecular oxygen represses synthesis of carotenoids and bacteriochlorophyll. In this study we characterize a strain of Rhodobacter capsulatus, DB469, which contains a genomic disruption of an open reading frame in the photosynthesis gene cluster termed ORF469. Characterization of the steady-state level of bacteriochlorophyll synthesis demonstrates that disruption of ORF469 results in a 2.5-fold increase in aerobic synthesis of bacteriochlorophyll over that observed with the parent strain. Utilizing reporter plasmids that contain transcriptional fusions of lacZ to various carotenoid and bacteriochlorophyll biosynthesis genes, we also demonstrate that disruption of ORF469 leads to an approximate twofold increase in bacteriochlorophyll and carotenoid gene expression under anaerobic growth conditions. Similar analysis with reporter plasmids that contain translational fusions of lacZ to the puf, puh, and puc operons demonstrates that disruption of ORF469 leads to elevated levels of aerobic transcription of light harvesting-II genes (puc), without affecting light harvesting-I or reaction center gene expression (puf and puh, respectively). Gel mobility analysis demonstrates that DB469 cells lack a DNA-binding protein that interacts with a palindromic sequence in the bchC promoter region. The results of this study indicate that ORF469 codes for a DNA-binding protein that acts as an aerobic repressor of promoters for bacteriochlorophyll, carotenoid, and light harvesting-II gene expression.
WHO identifies 16 countries struggling to control tuberculosis

The World Health Organization's (WHO) directly observed treatment short course (DOTS) strategy consists of health care or community workers who directly observe tuberculosis (TB) patients ingest their anti-TB treatment. Treatment, usually with 5 drugs, lasts for 6 months and costs about $11 per patient for the course. DOTS also involves the establishment of case detection and monitoring systems. DOTS is ranked by the World Bank as one of the most cost effective of all health interventions. The treatment success rate of TB cases in areas where DOTS is operating was 78% compared with 45% in areas which do not use the strategy. 22 countries account for 80% of TB cases worldwide. However, only 3 of the countries, Peru, Tanzania, and Vietnam, have made good progress in controlling TB by using DOTS, while Bangladesh, China, and Congo are making some progress. Brazil, Indonesia, Iran, Mexico, Philippines, Russia, South Africa, Thailand, Afghanistan, Ethiopia, India, Myanmar, Nigeria, Pakistan, Sudan, and Uganda have moved too slowly to implement the DOTS strategy and are making no progress against TB. These latter countries will play a major role in the world's failure to control TB by 2000. The failure to control TB is due not so much to a lack of finances as it is to a lack of political will and commitment.
Planned Obsolescence, Total Quality, Zero Defects and Global Competition

A global firm's success is conditioned by its ability to manage the system of intangible corporate assets (corporate culture, corporate identity, and information system) and intangible product assets (product design, brand equity and pre/after-sales services). Corporate imitation and innovation processes are a primary condition to compete in global markets and entail identifying and proposing design management products with 'new' features that change over time and space. Product design defines the functions that qualify a product or service to identify and organise the distinctive specifications of the firm’s offer, and develop goods and services based on the analysis of competition and demand needs (customer satisfaction). Competitive design management can be oriented towards different forms of flexible production (The Fourth Industrial Revolution), specifically related to products based on planned obsolescence, total quality, or a rigid competitive philosophy of zero defects.
A Stata Package for the Application of Semiparametric Estimators of Dose–Response Functions

In many observational studies, the treatment may not be binary or categorical but rather continuous, so the focus is on estimating a continuous dose– response function. In this article, we propose a set of programs that semiparametrically estimate the dose–response function of a continuous treatment under the unconfoundedness assumption. We focus on kernel methods and penalized spline models and use generalized propensity-score methods under continuous treatment regimes for covariate adjustment. Our programs use generalized linear models to estimate the generalized propensity score, allowing users to choose between alternative parametric assumptions. They also allow users to impose a common support condition and evaluate the balance of the covariates using various approaches. We illustrate our routines by estimating the effect of the prize amount on subsequent labor earnings for Massachusetts lottery winners, using data collected by Imbens, Rubin, and Sacerdote (2001, American Economic Review, 778–794).
Temperature coefficient of elastic constants of sputtered TeO/sub 2/ thin film for zero TCD SAW devices

Recently, we reported that amorphous TeO2 thin films possess a high negative temperature coefficient of delay (TCD) contrary to its bulk counterpart, and are useful for the temperature stability of LiNbO3 based surface acoustic wave (SAW) devices possessing a positive TCD. In the present work TeO2 thin film deposited under 60% O2 and 40% Ar gas environment, is found to be most suitable as an over layer to yield a temperature stable device at reasonably low thickness. The SAW propagation and TCD characteristics of the TeO2/IDTs/128° Y-X LiNbO3 layered structure have been studied. It is found that ~ 0.01 thick TeO2 over-layer reduces the TCD of the device from 76 ppm °C -1 to almost zero (~ 2 ppm °C -1 ) without deteriorating its efficiency. Material parameters of the deposited TeO2 thin film are also determined. Metallic cap of the packaged device was removed and amorphous TeO2 film of increasing thickness (0.3 - 4.5 µm) was sputtered onto the SAW filters containing IDT electrodes and the SAW propagation and TCD characteristics were measured for each thickness. To protect the aluminium IDT electrodes on the SAW device, TeO2 over layer was deposited intentionally at room temperature. Thickness of the films was measured every time separately using a surface profiler (Dektak IIA) by depositing the films on quartz substrates simultaneously. TeO2 over layer was deposited under different sputtering gas composition (25%, 40% and 60% O2 in the Ar + O2 gas mixture). The typical film deposition parameters are presented in table I. Deposition rate of TeO2 thin film was found to be decreasing from 0.35 µm h -1 to 0.2 µm h -1 with increase in the O2 content in sputtering gas mixture from 25% to 60%.
A Drosophila metallothionein promoter is inducible in mosquito cells

Expression from a Drosophila metallothionein promoter (Mtn) was investigated in mosquito cells. Recombinant plasmids carrying a transcription unit comprised of the Escherichia coliβ‐galactosidase gene (lacZ) fused to the metallothionein promoter were stably introduced into Aedes albopictus C6/36 cells. A low copy transformant containing approximately 60 copies of plasmid per cell, and a high copy transformant (1–2 times 104 copies/cell) were characterized. The expression of β‐galactosidase from the metallothionein promoter could be induced and controlled in this heterologous system, even when the copy number of introduced plasmid was several thousand.
The Common Agricultural Policy and the French, European and World Economies

The Common Agricultural Policy (CAP) has undergone significant changes under the 2003 reform. This study provides estimates of the contributions of the CAP to the farm and food sectors and of some of the costs associates with reallocating resources to these sectors. The study concentrates on the effects of some of the most distorting tools: direct payments, border protection and export subsidies (components of Pillar I funding) in 2007. Despite attempts to cut the link between support and production, the CAP contributes to maintaining farm and food sectors up to 8 per cent larger in the EU than if the CAP did not exist. The economic efficiency costs of allocating additional resources to the farm and food sectors amount to some €38 billion, with the EU15 supporting more than €34 billion in allocative efficiency costs. Although the cost of distortions in the new member states (NMS) is smaller, they are expected to increase as direct payments are phased in. Parts of the costs suffered by the EU are compensated by an improvement in its terms of trade in the order of €17 billion, at the expense of the EU’s trading partners. The benefits of the CAP are allocated very unevenly across the farm and food sectors, depending on the effective rate of protection that affects each operation. In France, allocative losses are estimated to exceed €3.5 billion. The estimates are static and do not account for any dynamic effect such as the lack of research into activities whose returns are lowered by the CAP. The estimates also abstract from the fact that the CAP maintains marginal farms in production, thus reducing the productivity of the sector as a whole. An alternative way of interpreting the results is that eliminating the parts of the CAP modelled is likely to increase the production potential of the EU by at least €38 billion. Further gains could be possible if liberalisation in the EU prompted other economies to liberalise their farm and food sectors.
The stability region of the finite-user slotted ALOHA protocol

Consideration is given to a version of the discrete-time slotted ALOHA protocol operating with finitely many buffered terminals. The stability region is defined to be the set of vectors of arrival rates lambda =( lambda /sub 1/, . . ., lambda /sub M/) for which there exists a vector of transmission probabilities such that the system is stable. It is assumed that arrivals are independent from slot to slot and that the total number or arrivals in any slot is geometrically distributed, with the probability that such an arrival is at node i being lambda /sub i// Sigma lambda /sub k/, over all k, independent of others. With this arrival model it is proved that the closure of the stability region of the protocol is the same as the Shannon capacity region of the collision channel without feedback. The basic probabilistic observation is that the stationary distribution and certain conditional distributions derived from it have positive correlations for bounded increasing functions. Similar techniques may be of use in studying other interacting system of queues. At present it is not clear if the result depends on the choice of arrival distribution. <<ETX>>
TCB: A feature transformation method based central behavior for user interest prediction on mobile big data

Although traditional spatial-temporal features, such as gyration, probability, and the intervals between consecutive records, have contributed to model human dynamics, the importance of these basic spatial-temporal features in predicting mobile user interest is not fully investigated. Moreover, these typical features ignore the fact that human behaviors are highly predictable and centralized. Specifically, human mobility is constrained in a small area depicted by several hotspots, and users tend to access mobile Internet intensively on several particular timeslots, which are defined as hot-times in this article. Thus, this article proposes a feature transformation method based central behavior to construct informative feature sets. Transformation method based central behavior only requires small amount of records to extract hotspots/hot-times information for every user, and projects original records into a relative vector space, of which coordinates represent the effects suffered from corresponding centralities (hotspots/hot-times). Then, the new space is further enriched by statistical summaries related to hotspots/hot-times. Based on the state-of-the-art classification algorithms, the proposed transformation method based central behavior is validated on a large Usage Detail Records dataset generated in real physical world. Results show that features generated by transformation method based central behavior surpass traditional spatial-temporal features and preference in the terms of precision, recall, and f1-score.
Gender Differences in Rotation of the Shank during Single-Legged Drop Landing and its Relation to Rotational Muscle Strength of the Knee

Background Increased shank rotation during landing has been considered to be one of the factors for noncontact anterior cruciate ligament injuries in female athletes. There have been no known gender differences in rotational knee muscle strength, which is expected to inhibit exaggerated shank rotation. Hypothesis Women have less knee external rotator strength than do men. Lower external rotator strength is associated with increased internal shank rotation at the time of landing. Study Design Controlled laboratory study. Methods One hundred sixty-nine healthy young subjects (81 female and 88 male; age, 17.0 ± 1.0 years) volunteered to participate in this study. The subjects performed single-legged drop landings from a 20-cm height. Femoral and shank kinematics were measured using a 3D optoelectronic tracking system during the drop landings, and then the joint angles around the knee (flexion/extension, valgus/varus, and internal/external rotation) were calculated. The maximal isometric rotational muscle strength of the knee was measured at 30° of knee flexion in a supine position using a dynamometer. Results The female subjects had significantly less external shank rotation strength than did the male subjects (P < .001). Female subjects also exhibited significantly greater peak shank internal rotation angles than did males during landing (P < .05). Moderate but significant association was found between the maximum shank external rotation strength and the peak shank internal rotation angle during landing (r = —0.322, P < .01). Conclusion Female subjects tended to have poor shank external rotator strength. This may lead to large shank internal rotation movement during the single-legged drop landing. Clinical Relevance Improving strength training of the external rotator muscle may help decrease the rates of anterior cruciate ligament injury in female athletes.
Insect Sperm Motility

The flagellosperm of insects, although following a general ground plan, exhibit considerable variation in morphology and ultrastructure across taxa, consistent with a history of rapid and divergent evolution. Sperm competition, which occurs when sperm of two or more males compete for the fertilization of a female’s ova, has been recognized as a significant driving force in the evolution of insect sperm structure. Despite a considerable volume of data on sperm morphology, little is known about the motility of insect sperm. Understanding insect sperm motility would help to refine models of sexual selection on insect sperm, and would throw light on the selective mechanisms that shape insect sperm structure and function. This review updates our present knowledge of the proximate and ultimate aspects of insect sperm motility.
Regulation of the Rho Family Small GTPase Wrch-1/RhoU by C-Terminal Tyrosine Phosphorylation Requires Src

ABSTRACT Wrch-1 is an atypical Rho family small GTPase with roles in migration, epithelial cell morphogenesis, osteoclastogenesis, and oncogenic transformation. Here, we observed rapid relocalization of Wrch-1 from the plasma membrane upon serum stimulation. Studies revealed a requirement for serum-stimulated tyrosine phosphorylation of Wrch-1 at residue Y254 within its C-terminal membrane targeting domain, mediated by the nonreceptor tyrosine kinase Src. Genetic or pharmacological loss of Src kinase activity blocked both phosphorylation and relocalization of Wrch-1. Functionally, Y254 was required for proper Wrch-1 modulation of cystogenesis in three-dimensional culture, and the phospho-deficient mutant, Y254F, was enhanced in Wrch-1-mediated anchorage-independent growth. Mechanistically, C-terminal tyrosine phosphorylation and subsequent relocalization of Wrch-1 downregulated its ability to interact with and activate its effectors by decreasing active Wrch-1-GTP, perhaps by altering proximity to a GEF or GAP. Phospho-deficient Wrch-1(Y254F) remained at the plasma membrane and GTP bound and continued to recruit and activate its effector PAK, even upon serum stimulation. In contrast, a phospho-mimetic mutant, Y254E, was constitutively endosomally localized and GDP bound and failed to recruit PAK unless mutated to be constitutively active/GAP insensitive. C-terminal tyrosine phosphorylation thus represents a new paradigm in posttranslational control of small GTPase localization, activation, and biological function.
Workplace Bullying as a Predictor of Intention to Leave among Workers at the Industrial Organizations in Jordan

The major purpose of this study is to find out if workplace bullying can be a predictor to the intention to leave at industrial companies in one of the most important industrial estates in Jordan, which is the Alhasan industrial Estate. The study employed the descriptive and analytical methodologies in order to arrive at sufficient answers for its main problem. Primary data of the study came from a questionnaire which was designed for said purpose, and workplace bullying was measured using two sub-scales, namely work-related bullying and person-related bullying. The Negative Acts Questionnaire (NAQ) of Einarsen et al. (2001) and Einarsen and Raknes (1997) was adopted. With regard to the intention to leave items, researchers utilized the studies of Glambek et al. (2014) and Djurkovic et al. (2008). Questionnaires were distributed to 34 industrial companies. The major findings of this study are as follows: The level of presence of work-related bullying at the industrial organization in Jordan is high, while person-related bullying is medium and workplace bullying predicts only 6.7% of the intention to leave among the respondents of the study.
Left handed behavior of SRR filled waveguides

This paper reports the left handed behavior of a novel transmission structure in waveguide technology taking benefit of a negative permeability synthesized via split ring resonators (SRRs). To overcome the existing limitations in terms of matching of previously reported sub-wavelength SRR-loaded metallic waveguides, we propose a structure based on its combination with inductively coupled cavities modeling a double negative media. Numerical evidence of the left handed behavior of this new guiding system is achieved by: (i) effective permittivity and permeability extraction and analysis; (ii) analysis of the frequency dependence of the phase offset between two different length transmission lines; and (iii) analysis of the composite media in terms of equivalent circuit parameters. A parametric study on the geometry of such structures demonstrates the possibility of tuning different electrical parameters as well as the composite effective media engineering.