Miracle-dz/UniFAR-FTUs huggingface dataset:
EMPLOYEE MOBILITY AND INNOVATION OF SELECTED OIL AND GAS UPSTREAM COMPANIES IN NIGERIA

The study investigates employee mobility and innovation of selected upstream oil and gas companies in Nigeria. The objective was to establish the effect of employee mobility and innovation of selected upstream oil and gas companies in Nigeria using a survey research design. Three upstream oil and gas companies were surveyed using proportionate and stratified random sampling techniques. A total population of 9,437 regular and contract employees were investigated with a sample size of 807. The validity of the instrument was determined using content and construct validity while Cronbach Alpha was used to ascertain the reliability of the instrument. Multiple linear regression Analysis was used to analyse the hypothesis with the aid of Statistical Package for Social Science (V26.0). The study found that employee mobility through knowledge sharing, hedge relationships, and knowledge transfer have positive significant effect on innovation of selected upstream oil and gas companies in Nigeria. Findings further revealed that reward system has a negative significant effect on innovation of selected upstream oil and gas companies in Nigeria. It concluded that employee mobility promotes innovation of selected upstream oil and gas companies in Nigeria. Based on the findings, the study recommends that upstream oil and gas companies in Nigeria should take advantage of knowledge sharing, hedge relationships and knowledge transfer with high reward system to enhance innovation within the companies.
The Gnevyshev gap effect in galactic cosmic rays

During the last three solar cycles and in a wide energy range of galactic cosmic rays both the modulation and the variability of the intensity demonstrate effects related to the Gnevyshev Gap (GG) — a substantial decrease once or twice during the maximum phase of each solar cycle of a parameter that generally varies in phase with the cycle. The GG-effect also manifests itself in the behaviour of both the strength of the average interplanetary magnetic field and the power of its fluctuating component. The energy dependence of the GGeffect in the modulation and in the variability of the cosmic ray intensity was found to be different. The start of the GG-effect in the cosmic ray modulation practically coincides with a change in the energy dependence of the cosmic ray modulation.
Vortex motion on surfaces with constant curvature

Vortex motion on two–dimensional Riemannian surfaces with constant curvature is formulated. By way of the stereographic projection, the relation and difference between the vortex motion on a sphere (S2) and on a hyperbolic plane (H2) can be clearly analysed. The Hamiltonian formalism is presented for the motion of point vortices on S2 and H2. The set of first integrals for each Hamiltonian shows a corresponding algebraic property in terms of the Poisson bracket defined respectively for S2 andH2. As an example of analytic solutions, the motion of a vortex pair (dipole) is considered. It is shown that a dipole draws a geodesic curve as its trajectory on S2 and H2.
Rectangular Slot with a Novel Triangle Ring Microstrip Feed for UWB Applications

This paper presents a study of a rectangular slot antenna for ultrawide-band (UWB) applications. Antenna is fed by a triangle ring microstrip line. The frequency band considered is 3.1–10.6 GHz, which has approved by the Federal Communications Commission as a commercial UWB band. The proposed antenna has a VSWR less than 2, phase linearity, and gain flatness over the above frequency band.
The Influence of Company Size on Profit Information with Profit Management and Earnings Opacity as Intervening Variables

The study aims to know the influence size of the company from informative profit to informative profit with management profit and earnings opacity to the intervening variable. Size company be measured with the natural logarithm of total assets. Informative profit proxied with earnings response coefficient. Management profit proxied with discretionary accruals. Meanwhile, earnings opacity is proxied with income smoothing. Population in the study i.e. company manufacturers listed on the Indonesia Stock Exchange for the 2016-2020 period. The Retrieval technique sample used a purposive sampling technique where 42 companies were selected with a total sample of 210 research data. Data analysis techniques using multiple linear regression with SPSS software version 25 and analysis track use Sobel test online. Research results show that the size company, in a manner, direct have an influence positive to informative profit. However, management profit and earnings opacity have an influence negative to informative profit. Management profit and earnings opacity does not have a role as an intermediate intervening variable influencing the size company to informative gain.
Prediction of Apple Hybrid Offspring Aroma Based on Hyperspectral

Used Random forest algorithm to construct a prediction model of aroma components based on the hybrid offspring of ‘Honeycrisp’ × ‘Maodi’, and different preprocessing methods were tried (Standardization (SS), First-order Derivative (D1) and Standard normal variate (SNV)). The aroma composition and content were determined by gas chromatography-mass spectrometry (GC-MS), and the main aroma components of apples were classified according to compound categories, including ester, aldehyde, ketone, alcohol. Taking the chemical groups as the research objects, the characteristic wavelengths were selected by grid search algorithm, and the characteristic wavelength-aroma chemical group model was established, and the same method was used to construct the model for single aroma components. The results show: SNV has the best noise removal effect among the five preprocessing methods. Under the SNV treatment, aroma chemical groups of apples showed a good correlation with the spectrum. The number of characteristic spectra of ester are 413, 493, 512, 551, 592, 600, 721, 727, 729, 733 nm, all in the visible light range. The determination coefficient (R2), the root mean square error (RMSE) and the ratio of the standard deviation values (RPD) of validation were 0.90, 4936.16 and 1.13. The characteristic spectrum of alcohols is 519, 562, 570, 571, 660, 676, 737, 738 nm, the range is close to that of ester. The R2 and RMSE of alcohol validation are 0.92 and 83.21, and RPD is 1.30. The number of characteristic spectra of aldehyde is 20, and the most important band is 1000 nm, which is outside the visible light range. The number of characteristic spectra of ketone is 15, and also has some distribution outside the visible light range. The R2 of aldehyde and ketone validation are 0.84 and 0.86. Except for cyclooctanol, the R2 of single aroma compound prediction model performed poorly. Based on the models, we tried to visualize alcohol, which can roughly represent their distribution on apple. Their distributions all show significant differences in the center and edge of apple, but the results are still rough due to the accuracy of models. In conclusion, the study can preliminarily prove that hyperspectral imaging technology (HSI) can perform non-destructive detection of aroma in apple hybrid offspring.
How do social network ties influence purchases in social commerce communities? A lens of attachment theory

PurposeThis study aims to address how to facilitate more community members making purchases in social commerce communities. The research is expected to shed new light on the underlying process by which individuals’ social networks influence their purchases in social commerce communities.Design/methodology/approachAn online survey and secondary archive data are presented to confirm all the hypotheses.FindingsCommunity members’ out-degree ties show a positive effect on their attachment to other members, as well as to the community. Community members’ attachment to the community has a positive influence on their purchases made in the e-commerce modules of social commerce communities and mediates the effect of their attachment to community members. The study establishes a theoretical framework to reveal how community members’ social networks influence their purchases in social commerce communities.Practical implicationsThe findings of this study provide new insights for managers and designers of new social commerce communities to inspire them to achieve their goal of keeping consumers making purchases in the e-commerce modules of social commerce communities.Originality/valueFirstly, this study draws on attachment theory to explain why community members make purchases in a social commerce community. Then, the study enriches the research on social network ties and attachment theory by initially integrating the social network perspective with attachment theory to examine the effects of social network ties on different types of attachment.
On the elastic equilibrium of circular cylinders under certain practical systems of load

The paper investigates solutions of the equations of elasticity in cases of circular symmetry, and it applies them to discuss the elastic equilibrium of the circular cylinder under systems of surface loading which do not lead to the simple distributions of stress usually assumed in practice. The analytical method employed has been to solve the equations of elasticity in cylindrical co-ordinates, obtaining solutions in the typical form cos sin { kz} x (function of r), r being the distance from the axis and z the distance measured along the axis.
Increased insulin resistance due to long COVID is associated with depressive symptoms and partly predicted by the inflammatory response during acute infection

Background. Some months after the remission of acute COVID-19 infection, some people show depressive symptoms, which are predicted by increased peak body temperature (PBT) and lowered blood oxygen saturation (SpO2). Nevertheless, no data indicate whether Long COVID is associated with increased insulin resistance (IR) in association with depressive symptoms and immune, oxidative, and nitrosative (IO&NS) processes. Methods. We used the homeostasis Model Assessment 2 (HOMA2) calculator to compute beta-cell function, insulin sensitivity and resistance (HOMA2-IR) and measured the Beck Depression Inventory (BDI) and the Hamilton Depression Rating Scale (HAMD) in 86 Long COVID patients and 39 controls. We examined the associations between the HOMA2 indices and PBT and SpO2 during acute infection, and depression, IO&NS biomarkers (C-reactive protein, NLRP3 activation, myeloperoxidase, and advanced oxidation protein products) 3-4 months after the acute infection. Results. Long COVID is accompanied by increased HOMA2-IR, fasting blood glucose, and insulin levels. We found that 33.7% of the patients versus 0% of the controls had HOMA2-IR values >1.8, suggesting IR. PBT, but not SpO2, during acute infection significantly predicted IR, albeit with a small effect size. Increased IR was significantly associated with depressive symptoms as assessed with the BDI and HAMD above and beyond the effects of IO&NS pathways. There were no significant associations between increased IR and the activated IO&NS pathways during Long COVID. Conclusion. Long COVID is associated with new-onset IR in a subset of patients. Increased IR may contribute to the onset of depressive symptoms due to Long COVID by enhancing overall neurotoxicity.
The Absorption of Sound in Suspensions of Irregular Particles

The greater part of the absorption of sound in aqueous suspensions of small spherical particles can be attributed to the viscous drag between the fluid and the particles in the sound field. The absorption resulting from this process is found to agree with that obtained by Lamb in another manner. The applicability of the theoretical result to suspensions of irregular particles is examined by means of measurements on sand and kaolin suspensions, using a pulse‐reflection method at megacycle frequencies. Approximate agreement with the idealized theory is found as the particle size, viscosity, and frequency are varied.
Higgs Inflation and its Self-Consistency

Keywords: Inflation ; Higgs boson ; Standard Model ; Non-minimal coupling ; Effective field theory ; Non-polynomial theory These Ecole polytechnique federale de Lausanne EPFL, n° 5890 (2013)Programme doctoral PhysiqueFaculte des sciences de baseInstitut de theories des phenomenes physiquesLaboratoire de physique des particules et de cosmologieJury: O. Schneider (president), J.R. Espinosa Sedano, P. Lodone, A.W. Riotto Public defense: 2013-8-16 Reference doi:10.5075/epfl-thesis-5890Print copy in library catalog Record created on 2013-07-31, modified on 2017-05-12
Vanishing and Finiteness Results in Geometric Analysis: A Generalization of the Bochner Technique

Harmonic, pluriharmonic, holomorphic maps and basic Hermitian and Kahlerian geometry. - Comparison Results. - Review of spectral theory. - Vanishing results. - A finite-dimensionality result. - Applications to harmonic maps. - Some topological applications. - Constancy of holomorphic maps and the structure of complete Kahler manifolds. - Splitting and gap theorems in the presence of a Poincare-Sobolev inequality.
Lonely cores : molecular line observations of isolated star formation

In this thesis, I present molecular line & continuum data of a sample of small, southern, isolated cores. I present a multi-wavelength view of the cores, by utilising optical images, 2MASS extinction maps, CO integrated intensity maps and 1.2mm continuum images of each of the cores. Spitzer data are used to identify young stellar objects local to each core, which may influence the evolution of the core. Column densities and masses are calculated for each core. The column densities calculated from the CO and 1.2mm continuum tracers are shown to be in excellent agreement with each other, and with the peak extinction, as seen on the 2MASS extinction maps. A comparison of column density derived from 1.2mm continuum and C18O observations suggest that a fraction of the gas has frozen out onto the dust grains in the densest parts of the core. The masses derived from 13CO, C18O and 1.2mm continuum observations are compared with the virial mass calculated from the observed linewidths. The cores are found to be within 3� of virial equilibrium in all cases, which suggests that all cores may be gravitationally bound. I find that the observed linewidths of the isolated cores are consistent with models of star formation by turbulent dissipation. The C18O linewidth is observed to be narrower than the 13CO linewidth, which is narrower than the 12CO linewidth in all cases. This suggests that as the density of the tracer increases, the linewidth decreases. Therefore, turbulent support against collapse is removed from the inside out, resulting in stars forming in the densest parts of the cores. I also present a proposed evolutionary diagram, based on the observed 12CO and ratio of 12CO/C18O linewidths. I hypothesise that a young core will have large 12CO and C18O linewidths. In an older core, the turbulence will have had time to dissipate in the core centre, and so the C18O linewidth will be narrower. For the oldest cores, the dissipation of turbulence will have occurred in the outer parts of the core and so the 12CO/C18O ratio will be small, indicating a more evolved core.
Adsorption site determination of light elements on heavy substrates by low-energy ion channeling

Ion channeling in the low-keV energy range is demonstrated by means of the technique of time-of-flight scattering and recoiling spectrometry. The predictions of the Lindhard string model of ion channeling are compared with the experimental findings. Qualitative agreement was obtained between the experimentally measured critical angles and the predictions of the model. The technique of low-energy ion channeling is shown to be capable of quantitatively probing the positions of light elements on heavy substrates with analysis by simple geometrical constructs. Classical ion trajectory simulations using the scattering and recoiling imaging code were used to observe the details of the ion trajectories. Quantitative analysis of the Pt(111)-(1×1)-H surface using 5 keV Ne+ shows that the hydrogen atoms preferentially populate the threefold fcc sites with a height of 0.9±0.1 A above the first-layer Pt atoms and a corresponding Pt–H bond length of 1.9±0.1 A.
Long-Term Efficacy and Clinical Remission After Benralizumab Treatment in Patients with Severe Eosinophilic Asthma: A Retrospective Study

Background Few studies on the long-term efficacy of benralizumab, an anti-interleukin-5 receptor α monoclonal antibody, have been conducted for patients with severe eosinophilic asthma (SEA), especially regarding the improvement of pulmonary function and clinical remission in a real-world setting. Objective To elucidate the long-term efficacy and clinical remission rate (CRR) in patients with SEA. Methods From July 2018 to July 2022, 23 Japanese patients with SEA received benralizumab for two years or more at Jikei University Hospital. We retrospectively evaluated the patients’ characteristics, biomarkers, number of exacerbations, pulmonary function, asthma symptoms, maintenance oral corticosteroid (OCS) dose and CRR. Results The mean observation period was 38.3 (24–49) months. Among the 23 patients, 10 patients switched from mepolizumab to benralizumab. After administration of benralizumab, the forced expiratory volume in one second (FEV1) increased and was maintained for two years in the biologic-naïve group and in the switching group (177 ± 404 and 151 ± 236 [mL], respectively, P = 0.80). In all patients, the %FEV1 improved from 76.7 ± 22.9% to 84.3 ± 18.4% (P = 0.016), and the number of annual exacerbations decreased from 2.5 ± 3.3 to 0.74 ± 1.7 (P = 0.014). Furthermore, the Asthma Control Test score significantly improved, and the reduction in OCS dose was maintained for three years. Ultimately, five patients met the clinical remission criteria and exhibited stabilization of pulmonary function, no exacerbation, no OCS use and well-controlled symptoms. The CRR was significantly higher in patients with a blood basophil count (BBC) ≥ 22 than in those with a BBC < 22 (/µL) (38.5% vs 0%, respectively, P = 0.046). Conclusion Long-term treatment with benralizumab significantly improved pulmonary function, alleviated asthma symptoms and decreased the number of exacerbations at two years in a real-world setting. The CRR may be associated with the BBC at baseline.
Rett Syndrome and MECP2 Duplication Syndrome: Disorders of MeCP2 Dosage

Abstract Rett syndrome (RTT) is a neurodevelopmental disorder caused predominantly by loss-of-function mutations in the gene Methyl-CpG-binding protein 2 (MECP2), which encodes the MeCP2 protein. RTT is a MECP2-related disorder, along with MECP2 duplication syndrome (MDS), caused by gain-of-function duplications of MECP2. Nearly two decades of research have advanced our knowledge of MeCP2 function in health and disease. The following review will discuss MeCP2 protein function and its dysregulation in the MECP2-related disorders RTT and MDS. This will include a discussion of the genetic underpinnings of these disorders, specifically how sporadic X-chromosome mutations arise and manifest in specific populations. We will then review current diagnostic guidelines and clinical manifestations of RTT and MDS. Next, we will delve into MeCP2 biology, describing the dual landscapes of methylated DNA and its reader MeCP2 across the neuronal genome as well as the function of MeCP2 as a transcriptional modulator. Following this, we will outline common MECP2 mutations and genotype–phenotype correlations in both diseases, with particular focus on mutations associated with relatively mild disease in RTT. We will also summarize decades of disease modeling and resulting molecular, synaptic, and behavioral phenotypes associated with RTT and MDS. Finally, we list several therapeutics in the development pipeline for RTT and MDS and available evidence of their safety and efficacy.
Mathematical Modeling of Metal Leaves

Fractal geometry, a mathematical subject, has nonetheless become useful in many branches of science. This note introduces a graduation project on fractal geometry that combines the areas of mathematics, computer science, and physical chemistry [1]. With a microscope, we can observe that particles suspended on the surface of water have a highly irregular motion. We describe this as Brownian motion. Molecular diffusion, which is extensively simulated in physical chemistry, is based on Brownian motion. If we assume irreversible aggregation (that is, once something gets stuck, it can not get un-stuck), then we can study particle motion with an experimental laboratory method called electrodeposition. Our paper compares this experimental method with a simulation method called diffusion-limited aggregation (DLA). DLA is a simulation method that models various physicochemical phenomena: it is a simple randomgrowth process generated by Brownian motion [2]. We use the mathematics of fractal geometry to compare the two methods.
THE HST QUASAR ABSORPTION LINE KEY PROJECT VIII. CCD IMAGING OF HUBBLE SPACE TELESCOPE QUASAR FIELDS

We present an analysis of CCD images of more than 100 quasars; many of the objects have been or will be observed in the HST Key Project Quasar Absorption Line Survey. The data set consists of B, g, and i photometry of 117 quasars and deeper g (limiting magnitude of ~22) images of 101 quasar fields. Positions accurate to ~1", measured with the Space Telescope Science Institute's Astrometric Support Program, are listed for all of the quasars in this study. Positions, magnitudes, and classifications of stars and galaxies located within ~100" of the quasars are given for all of the dep g data. The positions of the stars and galaxies relative to the quasar are accurate to ~0.5". The results presented here can be used to prepare spectroscopic programs designed to obtain redshifts of galaxies in the fields of these quasars.
Implementing Palliative Care Teams Specialized in Dementia in Two Countries: Experiences of Failure and Success

Much is known about palliative care needs of persons with dementia and their family. Less is known about how to successfully implement models that address those needs. We present specialist models in the Netherlands (2017-2018) and Northern Ireland (2016-2017) contrasting its evaluations. From implementation failure in the Netherlands compared with successful implementation in Northern Ireland, we learn that recognizing roles and competencies among all involved is essential in developing effective partnership relationships. All of this is facilitated by referral before the end of life and offering various training programs and in-patient and out-patient services and therapies to show benefits early.