Miracle-dz/UniFAR-FTUs huggingface dataset:
ADJUSTMENT OF THE LINEAR CORRELATION BETWEEN THE SURFACE AREA AND THE VOLUME OF THE LEFT VENTRICLE

Abstract: This work aims to study the linear correlation between the surface area and the left ventricle volume, considering that this cardiac chamber has the truncated prolate spheroid geometry, and also aims to compare it with a correlation between these two parameters, already described in literature. We used mathematical models to determine the surface area and the left ventricle volume. The volumes that were considered for its real terms and for patients with no cardiac abnormalities, obtained in medical literature. The volumes of this chamber were obtained in the same bibliographic reference. They were determined by MRI and were used to find more realistic correlations. Key words: Ventricular volume, ventricular surface area, truncated prolate spheroid, left ventricle, mathematical models.
Participation in voluntary associations: relations with resources, personality, and political values

145 words) Participation in voluntary associations is explained by different theories in sociology, psychology and political science. Sociologists have emphasized the effects of resources such as human and social capital. Psychologists have demonstrated the role of empathy and extraversion as aspects of personality. Political scientists have considered political values and attitudes. This paper investigates the predictive value of personality characteristics, political values and social conditions for civic engagement. Data from the Family Survey of the Dutch Population 2000 (n=1,587) show that active citizens have more human and social capital available to them, they are more interested in politics, have more postmaterialistic value orientations, prefer leftist or Christian political parties, are less conscientious persons and show more empathic concern with other people. Relations of personality characteristics with civic engagement were partly intermediated by church attendance and the level of education, and varied in complex ways with hourly wages. My results show how social, political and psychological characteristics are jointly related to civic engagement. Suggested running head:
Solar origin of heliospheric magnetic field inversions: Evidence for coronal loop opening within pseudostreamers

The orientation of the heliospheric magnetic field (HMF) in near‐Earth space is generally a good indicator of the polarity of HMF foot points at the photosphere. There are times, however, when the HMF folds back on itself (is inverted), as indicated by suprathermal electrons locally moving sunward, even though they must ultimately be carrying the heat flux away from the Sun. Analysis of the near‐Earth solar wind during the period 1998–2011 reveals that inverted HMF is present approximately 5.5% of the time and is generally associated with slow, dense solar wind and relatively weak HMF intensity. Inverted HMF is mapped to the coronal source surface, where a new method is used to estimate coronal structure from the potential‐field source‐surface model. We find a strong association with bipolar streamers containing the heliospheric current sheet, as expected, but also with unipolar or pseudostreamers, which contain no current sheet. Because large‐scale inverted HMF is a widely accepted signature of interchange reconnection at the Sun, this finding provides strong evidence for models of the slow solar wind which involve coronal loop opening by reconnection within pseudostreamer belts as well as the bipolar streamer belt. Occurrence rates of bipolar‐ and pseudostreamers suggest that they are equally likely to result in inverted HMF and, therefore, presumably undergo interchange reconnection at approximately the same rate. Given the different magnetic topologies involved, this suggests the rate of reconnection is set externally, possibly by the differential rotation rate which governs the circulation of open solar flux.
Morphology parameters: substructure identification in X-ray galaxy clusters

In recent years multi-wavelength observations have shown the presence of substructures related to merging events in a high fraction of galaxy clusters. Clusters can be roughly grouped into two categories -- relaxed and non-relaxed -- and a proper characterisation of the dynamical state of these systems is of crucial importance both for astrophysical and cosmological studies. In this paper we investigate the use of a number of morphological parameters (Gini, $M_{20}$, Concentration, Asymmetry, Smoothness, Ellipticity and Gini of the second order moment, $G_{M}$) introduced to automatically classify clusters as relaxed or dynamically disturbed systems. We apply our method to a sample of clusters at different redshifts extracted from the {\it Chandra} archive and we investigate possible correlations between morphological parameters and other X-ray gas properties. We conclude that a combination of the adopted parameters is a very useful tool to properly characterise the X-ray cluster morphology. According to our results three parameters -- Gini, $M_{20}$ and Concentration -- are very promising for identifying cluster mergers. The Gini coefficient is a particularly powerful tool, especially at high redshift, being independent from the choice of the position of the cluster centre. We find that high Gini ($>$ 0.65), high Concentration ($>$ 1.55) and low $M_{20}$ ($ $ -1.4) characterise dynamically perturbed systems. We also estimate the X-ray cluster morphological parameters in the case of {\it radio loud} clusters. In excellent agreement with previous analyses we confirm that diffuse intracluster radio sources are associated with major mergers.
Exponential GARCH Modelling of the Inflation-Inflation Uncertainty Relationship for Ghana

This study examines the asymmetric effects of inflation on inflation uncertainty in Ghana for the period 1963:4 to 2014:2. Exponential Generalized Autoregressive Heteroscedasticity (EGARCH) model is employed on monthly inflation rates to estimate inflation uncertainty. Two complementary approaches are used to determine the empirical relationship between inflation and its uncertainty. In the first approach, inflation dummy is included in the variance equation and in the second, we employ the two-step procedure in which Granger causality test is performed on the monthly inflation rates and the conditional variance generated from the EGARCH model. We find strong support for both Friedman-Ball and Cukierman-Meltzer hypotheses for the full sample as well as the inflation targeting period. Given the current build-up in inflationary pressures in Ghana, our results warn of possible costs of not keeping inflation in check. The major policy implication that follows from this study is that the Bank of Ghana should strive to minimize the gap between actual and target inflation levels so the public will have consistent belief in all announced policy targets.
A Kohutian approach to indecisiveness

Career indecision is a classic topic in vocational psychology and presently it is regarded as a multidimensional construct. Career undecided individuals have been classified into two main categories. The first corresponds to a normal phase, in development terms, of career exploration of alternatives that precedes investment in a specific career option. The second, normally called indecisiveness, is of more structural nature. For indecisive individuals, and not simply undecided, the decision making process, including career choice, tends to be a difficulty task. The identification of the determinants of indecisiveness has important implications for career counseling. Based on the self-psychology of Heinz Kohut, the primary purpose of this study was to analyze the role of goal instability and self-esteem, two markers of the self's maturity according to this psychological framework of psychoanalytical orientation, in the prediction of indecisiveness. A regression analysis was applied to a Portuguese high-school sample of 314 secondary school students. Overall, the regression equation accounted for 35% of indecisiveness scores. Implications for career theory and counseling are discussed.
An analytical study of seismoelectric signals produced by 1-D mesoscopic heterogeneities

The presence of mesoscopic heterogeneities in fluid-saturated porous rocks can produce measurable seismoelectric signals due to wave-induced fluid flow between regions of differing compressibility. The dependence of these signals on the petrophysical and structural characteristics of the probed rock mass remains largely unexplored. In this work, we derive an analytical solution to describe the seismoelectric response of a rock sample, containing a horizontal layer at its center, that is subjected to an oscillatory compressibility test. We then adapt this general solution to compute the seismoelectric signature of a particular case related to a sample that is permeated by a horizontal fracture located at its center. Analyses of the general and particular solutions are performed to study the impact of different petrophysical and structural parameters on the seismoelectric response. We find that the amplitude of the seismoelectric signal is directly proportional to the applied stress, to the Skempton coefficient contrast between the host rock and the layer, and to a weighted average of the effective excess charge of the two materials. Our results also demonstrate that the frequency at which the maximum electrical potential amplitude prevails does not depend on the applied stress or the Skempton coefficient contrast. In presence of strong permeability variations, this frequency is rather controlled by the permeability and thickness of the less permeable material. The results of this study thus indicate that seismoelectric measurements can potentially be used to estimate key mechanical and hydraulic rock properties of mesoscopic heterogeneities, such as compressibility, permeability, and fracture compliance.
Genome-Wide Sequencing of Cell-Free DNA Identifies Copy-Number Alterations That Can Be Used for Monitoring Response to Immunotherapy in Cancer Patients

Inhibitors of the PD-1/PD-L1/CTLA-4 immune checkpoint pathway have revolutionized cancer treatment. Indeed, some patients with advanced, refractory malignancies achieve durable responses; however, only a subset of patients benefit, necessitating new biomarkers to predict outcome. Interrogating cell-free DNA (cfDNA) isolated from plasma (liquid biopsy) provides a promising method for monitoring response. We describe the use of low-coverage, genome-wide sequencing of cfDNA, validated extensively for noninvasive prenatal testing, to detect tumor-specific copy-number alterations, and the development of a new metric—the genome instability number (GIN)—to monitor response to these drugs. We demonstrate how the GIN can be used to discriminate clinical response from progression, differentiate progression from pseudoprogression, and identify hyperprogressive disease. Finally, we provide evidence for delayed kinetics in responses to checkpoint inhibitors relative to molecularly targeted therapies. Overall, these data demonstrate a proof of concept for using this method for monitoring treatment outcome in patients with cancer receiving immunotherapy.
Potential for inoculation of common bean by effective rhizobia in Tunisian soils

Le haricot (Phaseolus vulgaris (L)) est faiblement nodule dans toutes les regions de la Tunisie ou il est cultive. Pour selectionner des souches efficientes un essai a ete mene en systeme aseptique de culture hydroponique. Une interaction significative souche x cultivar a ete observee. Contrairement aux isolats locaux la plupart des souches de reference sont tres efficientes. La methode Elisa avec des anticorps polyclonaux a ete utilisee pour evaluer l'occupation nodulaire des Rhizobium specifiques du haricot inocules dans les sols tunisiens. Des antiserums de lapin ont ete prepares contre un isolat local (HB) et cinq souches de reference (CIAT899, USDA2667, USDA2669, USDA2676, and IRATYHI12). L'analyse de l'apparentement entre 44 souches et isolats montre que 77 % des isolats locaux ne reagissent pas avec ces serums alors que les bacteries restantes forment trois serogroupes. Une experience d'inoculation avec les souches de reference selectionnees CIAT899, USDA2667 et IRATYH112 distinguables serologiquement des Rhizobium natifs, a ete conduite en serre sur les cultivars Royalnel et Coco cultives sur des carottes de sols provenant de deux sites differents (Boucharai et Chrifet). Le pourcentage de nodosites formes par les souches inoculees a ete estime et l'effet de l'inoculation sur le nombre de nodules et l'azote dans les parties aeriennes ont ete analyses. Une interaction hautement significative traitement × cultivar × site a ete observee pour les parametres etudies. alors que sur le sol de Boucharrai l'inoculation conduit a une amelioration significative du contenu en azote des parties aeriennes pour le cultivar Royalnel, l'inoculation du meme cultivar sur le sol de Chrifet conduit plutot a une stimulation de la nodulation par les bacteries natives sans amelioration de la croissance vegetale. L'application d'engrais azote conduit pour les deux cultivars a une diminution de la nodulation particulierement sur le sol de Chrifet. En vue de favoriser l'etablissement du processus symbiotique, l'utilisation de ce compose doit etre rationalisee.
Contract Farming in Tobacco Production: Opportunity for Small-Holders? Comparitive Study from North Sumatra

This paper presents results of the field research w hich was carried out in the North Sumatra province in Indonesia in May 2006. Three villages w ere investigated and two tobacco production systems were compared: traditional marke t chain and contract farming. Due to the worse natural and social conditions and low negotia ting power, farmers under contract in villages Lobu Tua and Sosorgonting are facing the p roblems with lack of cash, credit, and uncertainty with their sales have a negative impact on heir living standard conditions. Long distance from local large markets and weak transpor tati n possibilities put the farmers under contract into isolation. Children are involved in t he field works or any off-farm job. Shorttime contracts causes uncertainty for future sales. On the other hand, traditional market chain system, based on traditional norms and manners, ens ures for local farmers better living conditions and higher economic efficiency, despite of low level of mechanization, farm inputs (e.g. fertilizers) and low educational status. High demand for tobacco and proximity to the market ensures those farmers high sales. Among thes e farmers occurs higher social capital what is mainly seen family planning and higher inte rest in education of their children and healthcare of family members.
HIGHER-ORDER NORMAL FORMS ANALYSIS OF STRESSED POWER SYSTEMS: A NON-RECURSIVE APPROACH

In this paper, a new procedure based on a modified normal form (NF) approach is proposed for determining the effects of the higher-order nonlinear terms of the power system representation on system dy- namic performance. A general nonlinear analysis technique which avoids the use of center manifold reduction is first developed for calculating the NF representation and the associated nonlinear transformations for resonant systems. Using this representation, analytical expressions are obtained that provide approximate solutions to system perform- ances and indices for interpreting nonlinearity in terms of modal interaction are given. The derived formulations are suitable for the analysis of practical systems and result in more accurate solutions than existing procedures. The application of these procedures is illustrated on a 68-bus, 16-machine model of the NPCC system. The effi- ciency and accuracy of this approach is demonstrated by comparisons to fully nonlinear computations.
Hydrometeorological Modeling Study of Tropical Cyclone Phet in the Arabian Sea in 2010

Tropical cyclone Phet is the second strongest tropical cyclone ever recorded in the Arabian Sea. Phet made landfall in the northeast mountainous area of Oman in early morning on 4 June in 2010, causing a breaking record rainfall in this arid region of 488 mm/48 h. The cyclone heavy rainfall triggered flash floods causing enormous losses in lives and infrastructure in northeast Oman. The state of the art Advanced Research WRF model is used to study the atmospheric circulation and to reproduce the heavy rainfall over Oman. Three one-way nested domains with 32 vertical layers with terrain following sigma coordinate are used to setup eight numerical experiments aiming to investigate the effect of initialization time, horizontal grid resolution and terrain elevations on reproducing the cyclone track, intensity and heavy rainfall. Simulation results show negligible effect of model initialization time on cyclone track, intensity and rainfall. In contrast, the orographic effect played a substantial role in rainfall simulation over northeast Oman. The heavy rainfall was a combination of the cyclone circulation effect and the orographic lifting in the mountains. The northeasterly cyclone moist-warm wind was lifted in the Omani mountains releasing its potential energy and enhancing further thermal convection. The numerical experiment with the highest terrain elevation (RUN3.3-C) resulted in overestimation of observed rainfall due to the enhanced topographic lifting of the saturated cyclone wind. Experiment with similar horizontal grid resolution but smoother terrain elevation (RUN3.3-TER) resulted in much less rainfall amount comparable to the observed values. The increased precipitation in RUN3.3-C is due to the increase in the rain- water and cloud water and graupel of the explicit moisture scheme.
The Moist Static Energy Budget of a Composite Tropical Intraseasonal Oscillation in a Climate Model

Abstract The intraseasonal moist static energy (MSE) budget is analyzed in a climate model that produces realistic eastward-propagating tropical intraseasonal wind and precipitation variability. Consistent with the recharge–discharge paradigm for tropical intraseasonal variability, a buildup of column-integrated MSE occurs within low-level easterly anomalies in advance of intraseasonal precipitation, and a discharge of MSE occurs during and after precipitation when westerly anomalies occur. The strongest MSE anomalies peak in the lower troposphere and are, primarily, regulated by specific humidity anomalies. The leading terms in the column-integrated intraseasonal MSE budget are horizontal advection and surface latent heat flux, where latent heat flux is dominated by the wind-driven component. Horizontal advection causes recharge (discharge) of MSE within regions of anomalous equatorial lower-tropospheric easterly (westerly) anomalies, with the meridional component of the moisture advection dominating the.
Strengthening teamwork to improve student engagement in managerial economics and strategy

A series of tests and a major project, designed to be undertaken in teams of two students, and with ongoing feedback as an integral component, was introduced into scheduled tutorial classes, in an attempt to improve flagging student attendance and low student motivation. After a single semester of implementation, attendance at tutorials has improved (to nearly double the previous year), students are actively engaging in their work with their colleagues, and average assessment marks are a full grade higher compared to the previous student cohort.
Changes in some of the motor abilities of preschool children (age four).

On a sample of 96 children (57 children in the experimental group and 39 children in the control group), all at the age of four, initial and final measurements were carried out with the aim out of determining their motor abilities. On the basis of the participation of the experimental group in the realization of the sport program assigned to the preschool children, at a rate of four days per week for 50 - 60 minutes, all of the possible differences in motor abilities between the experimental and control group during the initial and final check-up over a period of nine months were observed. The tests used to check the motor abilities were: the "shuttle run" (agility test), walking backwards, "school-hops", sit-ups, long jump, holding pull-ups, V-sit and reach, the lateral split and lying extension. All the tests used to check motor abilities were evaluated for discrimination, reliability and validity. The obtained results pointed to valid metric test characteristics. Changes in the area of motor abilities were evaluated by a T-test for independent samples between the experimental and control group as part of an initial and final check. The obtained results show that there is no difference between the groups in the initial check, while in the final check there was a statistically significant difference showing the advantage of the experimental group, which points out that the children who participated in the sport program improved their motor abilities.
Evolutionary patterns in e‐business strategy

In 2003 we investigated the level of adoption of e-business by manufacturing firms in Europe, identifying four strategies and analyzing them in terms of contingent factors and supply chain integration mechanisms. In this paper we replicate those analyses using the new release of the International Manufacturing Strategy Survey (IMSS IV), comparing new results with old ones. Data collected in Europe within IMSS III and IMSS IV are used. In particular, we cluster companies according to e-business practices adopted in supply chain management and compare the degree of adoption of e-business in the two samples. A longitudinal analysis using data from companies participating to both editions of the survey is also conducted. We show that the main underlying constructs remain valid, with a higher average level of adoption of e-business tools, but the four cluster model is no more valid, while three clusters emerge, characterized by different levels of adoption of e-business, but balanced between e- commerce and e-procurement. The paper shows that also small and medium firms in various industries today are starting adopting e-business. Results show that a balanced, cautious approach is preferred to radical adoptions, since some firms have even reduced their initial efforts.