Miracle-dz/UniFAR-FTUs huggingface dataset:
Success Factors Enhancing Brand Awareness: Adopting Social Media in Business Communication Activities

This research examined attitudes of marketing managers in the Dubai’s Architectural Engineering business, towards employing social media for brand awareness. To enhance, not replace, the conventional activities. The Technology Acceptance Model (TAM) was implemented, modified, and validated, as perceived risks and benefits were hypothesized to influence (explain) managerial attitudes. Calculations of a proposed statistical model were based on a PLS-SEM reflective approach. The literature review brought together this business’s values, interests, and concerns that can associate social media usage. Perceived risks and benefits were summarized, categorized, and then mapped into the available extensions of the TAM model. Perceived Risks were categorized into; Operational and Business risks. The first represented the internal concerns such as human resources, time and cost. While the second covered reputational and security concerns that can influence manager’s attitudes directly. Results showed comparable influences from perceived operational risks and benefits on attitude. Firms’ mangers showed high concern regarding their firms’ reputation, while special appreciation was shown for audience’s opinions. The shortage of knowledge among managers regarding implementing social media in business alerted for urgent awareness training. Managers were advised to focus on certain success factors through which social media can be governed, especially staff delegation and training, as their role was deemed to be the most important.
The Penalized Analytic Center Estimator

In a linear regression model, the Dantzig selector (Candès and Tao, 2007) minimizes the L1 norm of the regression coefficients subject to a bound λ on the L∞ norm of the covariances between the predictors and the residuals; the resulting estimator is the solution of a linear program, which may be nonunique or unstable. We propose a regularized alternative to the Dantzig selector. These estimators (which depend on λ and an additional tuning parameter r) minimize objective functions that are the sum of the L1 norm of the regression coefficients plus r times the logarithmic potential function of the Dantzig selector constraints, and can be viewed as penalized analytic centers of the latter constraints. The tuning parameter r controls the smoothness of the estimators as functions of λ and, when λ is sufficiently large, the estimators depend approximately on r and λ via r/λ2.
Temperature-Promoted Giant Unilamellar Vesicle (GUV) Aggregation: A Way of Multicellular Formation

The evolution of unicellular to multicellular life is considered to be an important step in the origin of life, and it is crucial to study the influence of environmental factors on this process through cell models in the laboratory. In this paper, we used giant unilamellar vesicles (GUVs) as a cell model to investigate the relationship between environmental temperature changes and the evolution of unicellular to multicellular life. The zeta potential of GUVs and the conformation of the headgroup of phospholipid molecules at different temperatures were examined using phase analysis light scattering (PALS) and attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), respectively. In addition, the effect of increasing temperature on the aggregation of GUVs was further investigated in ionic solutions, and the possible mechanisms involved were explored. The results showed that increasing temperature reduced the repulsive forces between cells models and promoted their aggregation. This study could effectively contribute to our understanding of the evolution of primitive unicellular to multicellular life.
School-Based Neurofeedback Training for Sustained Attention

Objective: To determine whether in situ neurofeedback training can be used as a tool to build sustained attention in the general student population and whether gains in attention translate to more effective work habits and learning skills. Method: Students participated in attention training game-based neurofeedback in situ for a period of 35 sessions of 25 min each. The study was built as a one-group pretest-posttest quasi-experimental design. Results: This study supports that classroom-based neurofeedback may be an effective tool to build sustained attention and translate these gains into observable work habits and learning behaviors including planning and organization. Conclusion: Neurofeedback has shown specificity in the treatment of Attention Deficit Hyperactivity Disorder. Published research has not, however, focused on its efficacy in developing attentional capacities in the general population. The promising results of this exploratory investigation warrant further applied research.
Different age groups present different clinics in anaphylaxis with children: one size does not fit all children

Background/aim Childhood anaphylaxis presents with a heterogeneous clinic. Elicitors and epidemiologic factors associated with anaphylaxis differ with age, geographic location and lifestyle. This study aimed to determine the clinical features and age-specific patterns of childhood anaphylaxis in a single referral center in Turkey. Materials and methods We conducted a retrospective study of anaphylaxis in children aged between 0 and 18 years of age, attending an allergy department in a children’s hospital. Results A total of 95 children diagnosed with anaphylaxis were analyzed. Among all, 35.8% of the first anaphylaxis episodes occurred in infancy and 57.9% in preschool age. Foods were the most common culprits (57.9%) and followed by drugs (15.8%). Patients with food-induced anaphylaxis were younger in age (p < 0.001). Food-related anaphylaxis was most common with cow’s milk (36.4%) and followed by tree nuts (20%). Cow’s milk played a significant role as a trigger in infancy, and tree nuts as a trigger in preschoolers and school-age children. Mucocutaneous manifestations were almost universally present (94.7%), followed by respiratory compromise (56.8%), with gastrointestinal (55.8%), cardiovascular (9.5%), and neurologic (4.2%) symptoms being less common. Respiratory and cardiovascular system-related symptoms were found more frequently in school-age children (p = 0.02 and p = 0.014, respectively). The severity of anaphylaxis was higher in school-age children (p = 0.015). Conclusion Findings reveal that children diagnosed with anaphylaxis differ in terms of etiological and clinical findings according to age groups. This difference shows the dynamically changing clinic of anaphylaxis over time and the importance of evaluating childhood anaphylaxis according to age groups.
Serum Magnesium in Patients With Acute Myocardial Infarction and Its Effect on Cardiac Complications and Mortality in Myocardial Infarction Patients

Background Magnesium is an essential micronutrient for people and is crucial in maintaining healthy cardiac function. It functions as a cofactor in a number of the body's enzyme systems, and myocardial cells are one of its target tissues. The upkeep of the myocardium's normal functional integrity depends on a lot of things including magnesium ions. Magnesium plays an important role in the pathophysiology of cardiovascular disorders. Aim This study aims to estimate serum magnesium levels and their correlation with cardiac complications and mortality in patients with acute myocardial infarction (AMI). Methods Patients with acute myocardial infarction who visited the Prince Faisal Bin Khalid Cardiac Center within 12 hours of the onset of symptoms were the subjects of this study. On the first and fifth days following admission, the level of serum magnesium was assessed. Statistical Package for Social Sciences (SPSS) version 20 (IBM SPSS Statistics, Armonk, NY) was used to analyze the collected data. Results The current study comprised 160 patients with acute myocardial infarction; there were 84 (52.5%) who experienced a low level of serum magnesium on admission. Significantly higher proportions of patients who experienced low magnesium levels had diabetes mellitus (P=0.0072) and a history of diuretics (P=0.03) and were administrated beta-blockers (P=0.01), calcium channel blockers (P=0.04), and statins (P=0.007) after admission. Significantly higher proportions of patients with low serum magnesium experienced atrial fibrillation (P=0.03), angina (P=0.03), and cardiogenic shock (P=0.003). Conclusion Low magnesium levels are associated with poor outcomes in most patients admitted with acute myocardial infarction.
Angular Regioselective Synthesis of Varied Functionalized Hexahydro-1,2,4-triazolo[4,3-a]quinazolin-9-ones and Their Antiproliferative Action

New 2-thioxopyrimidin-4-ones capable of participating in regioselective reactions with functionally diverse hydrazonoyl chlorides towards angular regioisomers, rather than linear ones, were designed and synthesized to form stereoisomeric cis- and trans-hexahydro [1,2,4]triazolo[4,3-a]quinazolin-9-ones to be tested as antitumor candidates. The angular regiochemistry of the products was verified through crystallographic experiments and NMR studies. In addition, the regioselectivity of the reaction was found to be independent of the stereochemistry of the used 2-thioxopyrimidin-4-one. Only compound 4c demonstrated satisfactory growth inhibition against all the cancer cells used among all the produced drugs.
Research on drag reduction performance of turbulent boundary layer on bionic jet surface

Based on the fact that jet formed in outer gill of sharks can reduce the wall friction during the breath process, a bionic jet surface model was established. The numerical simulations were carried out using shear stress transport k−ω model, and the simulation results accorded with that of experiments. First, in the case of fixed flow-velocity ratio, the drag reduction performance would be better with the smaller jet’s angle, and the impact that the angle has on the drag reduction would be greater with the increase in jet hole’s aperture. Second, in the case of fixed jet’s angle, the drag reduction had a nearly linear relationship with flow–velocity ratio. Namely, the drag reduction would be better as the flow–velocity ratio increased, and the larger the jet hole’s aperture, the better the drag reduction. In addition, compared with the case of smoothing surface, the flow structure in turbulent boundary layer was changed by jet, increasing the thickness of viscous bottom layer and decreasing the gradient of normal velocity perpendicular to wall. Finally, the drag reduction mechanism was proposed based on the increased velocity effect of turbulent core, isolation effect of wall and the increased turbulent damping effect.
The Liquidity Effect of the U.S. QE on Sovereign Yield Spreads of Commodity-Exporting Countries

This paper investigates the liquidity effect of the U.S. QE on the sovereign yield spreads of commodity-exporting countries by employing the two-stage least squares approach. The key contributions of the paper are in terms of our empirical findings. First, our results show that the U.S. QE has an economically and statistically significant liquidity effect in terms of both the HPW illiquidity measure and the TIPS liquidity premium. This is of policy importance because adjusting for the liquidity premium is a key stage in modeling inflationary expectations. Second, our results show that the U.S. QE reduced the liquidity premium with improved market liquidity and hence reduce sovereign yield spreads of most commodity-exporting countries. This finding is of macroeconomic importance as reduced sovereign yield spreads have been shown to lead to higher real activity and higher credit activity.
Certain Integral Equalities which Imply Equimeasurability of Functions

1.1. Two complex measurable functions/ and g on complex measure spaces (X, η) and (Y, v) are equimeasurable, abbreviated ƒ ∼ g, if for every Borel set E ⊆ C. If Φ is a continuous complex function on C, then we make the following standing hypothesis (HI) which relates Φ, f, and g: (HI) For all α, β ∊ C, we have
Sleep Problems After Concussion Are Associated With Poor Balance and Persistent Postconcussion Symptoms

We examined the association of self-reported sleep problems with clinical measures of postural stability, memory performance, symptom burden, and symptom duration following youth concussion. Patients 6-18 years of age presenting ≤21 days postconcussion underwent a clinical evaluation including modified Balance Error Scoring System, single- and dual-task tandem gait, immediate and delayed recall, and symptom severity. We calculated time from injury until symptom resolution and determined the proportion of patients who developed persistent postconcussion symptoms, defined as a symptom duration >28 days postconcussion. We grouped patients based on whether they reported sleep problems at their postconcussion clinical evaluation and compared symptom-based and functional outcomes between groups. Of the 207 patients included, n = 97 (14.3 ± 2.9 years; 49% female; initial visit 10.2 ± 5.8 days postconcussion) reported sleep problems postconcussion and n = 110 (14.3 ± 2.4 years; 46% female; initial visit 9.3 ± 5.4 days postinjury) did not. Those reporting sleep problems postconcussion had significantly more modified Balance Error Scoring System errors than those without (8.4 ± 5.5 vs 6.7 ± 4.7; P = .01), but similar tandem gait and memory performance. A significantly greater proportion of those who reported sleep problems postconcussion experienced persistent postconcussion symptoms than those who did not (53% vs 31%; P = .004). After adjusting for time from concussion to clinical visit and preconcussion sleep problems, postconcussion sleep problems were associated with a 2 times greater odds of developing persistent postconcussion symptoms (adjusted odds ratio = 2.02, 95% CI = 1.01, 4.06; P = .049). Identifying sleep problems early following concussion may allow clinicians to implement targeted treatment recommendations to improve sleep and provide an optimal recovery environment.
Do bone geometric properties of the proximal femoral diaphysis reflect loading history, muscle properties, or body dimensions?

The aim of this study was to investigate activity‐induced effects from bone geometric properties of the proximal femur in athletic vs nonathletic healthy females by statistically controlling for variation in body size, lower limb isometric, and dynamic muscle strength, and cross‐sectional area of Musculus gluteus maximus.
Remarks on the relationship between Lp stability and internal stability of nonlinear systems

In this paper, we investigate the relationship between Lp stability and internal stability of nonlinear systems. It is shown that under certain conditions, Lp stability implies attractivity of the equilibrium and that local Lp stability with finite gain implies local asymptotic stability of the origin. Copyright © 2012 John Wiley & Sons, Ltd.
Effect of demographic transition on economic growth: does economic freedom matter? Evidence from ECOWAS countries

Abstract According to the economic literature, for a country to benefit from the demographic dividend, it must first undergo a demographic transition, which describes the shift of a population from a stage of high fertility and mortality to one of low fertility and mortality. This transition, which results in a temporary increase in the share of the working age population, opens up a huge window of opportunity if the sound policies are implemented. Indeed, the literature indicates that local conditions can limit the expected effects of the change in age structure on economic growth. In this study, we focus on the role of economic freedom institutions in ECOWAS region by analysing the consequences of the interaction between economic freedom indicators and the growth rate in the share of the working age population on economic growth over the period 1996–2018. To do so, the study uses a robust technique, namely the Augmented Mean Group (AMG) method, which takes into account both the dependence and the heterogeneity of the individuals in the panel. The estimation shows that an increase in the share of the working age population only has a positive effect on economic growth when countries have better economic freedom institutions. This contribution is made in particular through improvements in indicators of investment freedom, financial freedom and government integrity. These results call on policy makers in the region to improve these dimensions in particular to enable their economies to benefit from the demographic transition dividend.
Completely Regular Mappings and Homogeneous, Aposyndetic Continua

The purpose of this note is to prove an improved version of Jones' Aposyndetic Decomposition Theorem. Corollaries to the new theorem re-emphasize the importance of understanding aposyndetic, homogeneous continua. The proof is a synthesis of results about homogeneous continua with results from an unexpected source: completely regular mappings. Completely regular mappings occur naturally and often in the study of homogeneous continua, which is a surprising and pleasing phenomenon, since these mappings were invented for quite another purpose [1]. The author believes that these maps are likely to provide even more new information about homogeneous continua. A continuum is a compact, connected, nonvoid metric space. A curve is a one-dimensional continuum. A continuum M is homogeneous if for each pair of points p and q belonging to M, there exists a homeomorphism h: M → M such that h(p) = q.
Aspects of supergroup Chern-Simons theories

The three-dimensional Chern-Simons gauge theory is a top ological quantum eld theory, whose correlation functions give metric-indep endent invariants of knots and three-manifolds. In this thesis, we consider a version of this theory, in which the gauge group is taken to b e a Lie sup ergroup. We show that the analytically-continued ver- sion of the sup ergroup Chern-Simons theory can b e obtained by top ological twisting from the low energy eective theory of the intersection of D3- and NS5-branes in the typ e I IB string theory. By S -duality, we deduce a dual magnetic description; and a slightly dierent duality, in the case of orthosymplectic gauge group, leads to a strong-weak coupling duality b etween certain sup ergroup Chern-Simons theories on R 3 . Some cases of these statements are known in the literature. We analyze how these dualities act on line and surface op erators. We also consider the purely three-dimensional version of the psl (1 j 1) and the U (1 j 1) sup ergroup Chern-Simons, coupled to a background complex at gauge eld. These theories compute the Reidemeister-Milnor-Turaev torsion in three dimensions. We use the 3d mirror symmetry to derive the Meng-Taub es theorem, which relates the torsion and the Seib erg-Witten invariants, for a three-manifold with arbitrary rst Betti numb er. We also present the Hamiltonian quantization of our theories, nd the mo dular transformations of states, and various prop erties of lo op op erators. Our results for the U(1|1) theory are in general consistent with the results, found for the GL(1|1) WZW mo del. We exp ect our ndings to b e useful for the construc- tion of Chern-Simons invariants of knots and three-manifolds for more general Lie sup ergroups.
A New Assessment of Robust Capuchin Monkey (Sapajus) Evolutionary History Using Genome-Wide SNP Marker Data and a Bayesian Approach to Species Delimitation

Robust capuchin monkeys, Sapajus genus, are among the most phenotypically diverse and widespread groups of primates in South America, with one of the most confusing and often shifting taxonomies. We used a ddRADseq approach to generate genome-wide SNP markers for 171 individuals from all putative extant species of Sapajus to access their evolutionary history. Using maximum likelihood, multispecies coalescent phylogenetic inference, and a Bayes Factor method to test for alternative hypotheses of species delimitation, we inferred the phylogenetic history of the Sapajus radiation, evaluating the number of discrete species supported. Our results support the recognition of three species from the Atlantic Forest south of the São Francisco River, with these species being the first splits in the robust capuchin radiation. Our results were congruent in recovering the Pantanal and Amazonian Sapajus as structured into three monophyletic clades, though new morphological assessments are necessary, as the Amazonian clades do not agree with previous morphology-based taxonomic distributions. Phylogenetic reconstructions for Sapajus occurring in the Cerrado, Caatinga, and northeastern Atlantic Forest were less congruent with morphology-based phylogenetic reconstructions, as the bearded capuchin was recovered as a paraphyletic clade, with samples from the Caatinga biome being either a monophyletic clade or nested with the blond capuchin monkey.
Venetoclax resistance and acquired BCL2 mutations in chronic lymphocytic leukemia

Venetoclax is a first in class, highly specific antagonist of BCL2 and supersedes current standard treatments in haematologic malignancies as recently demonstrated in the MURANO trial. Remarkable efficacy has been shown particularly in chronic lymphocytic leukemia (CLL) with a significant clearance of minimal residual disease (MRD). In contrast to combination therapy, continuous treatment with venetoclax as a single agent results in up to 50% of patients becoming refractory after 2-3 years as reported in trials with heavily pretreated CLL patients. Very recently a potential resistance mechanism to venetoclax has been identified as an acquired mutation in BCL2. Here we independently demonstrate the appearance of the BCL2mutation G101V in three out of four patients that became refractory to venetoclax. Moreover, we have also identified a second unreported BCL2 mutation D103Y in one of these patients with venetoclax resistance. From 10/2013 to 04/2015 15 heavily pretreated, highrisk CLL patients with a deletion of chromosome 17p were enrolled in our center in the pivotal phase 2 trial M13-982 with continuous venetoclax treatment. Over time most patients stopped treatment due to various reasons, however four out of six patients treated with venetoclax for a duration longer than 3 years developed progressive CLL. One of these patients was a 78 year-old woman diagnosed with CLL in 2004. She presented with a second relapse in February 2013 after two different chemo (immuno) therapy regimens (Figure 1A). Genetic analyses showed unmutated IGHV (V2-05) and a deletion of chromosome 17p. A partial response was achieved on a single agent venetoclax treatment with shrinking mediastinal lymph nodes and a normalization of blood counts. However, a routine Computed Tomography (CT) scan in March 2016 (week 120 on treatment) showed increasing lymphadenopathy with histologic confirmation of CLL in lymph node and bone marrow biopsies. As progression was asymptomatic, the patient opted to remain on venetoclax under close monitoring according to the protocol. In February 2017, night sweats and fatigue developed, accompanied by neutropenia and thrombocytopenia. Positron Emission Tomography (PET) -CT scan confirmed splenomegaly and generalized lymphadenopathy with moderate fludeoxyglucose uptake. Cutting needle biopsy of a spleen and bone marrow biopsy confirmed infiltration by CLL and no evidence of Richter transformation. Flow cytometry, fluorescence in situ hybridization and IGHV sequencing from peripheral blood confirmed CLL with baseline features (CD19CD5CD23, deletion 17p), although the lymphocyte count remained low (1.2 g/L). The patient was switched to ibrutinib treatment, but died only a few days later of pneumonia during neutropenia. In order to identify genomic variants underlying the development of venetoclax resistance, we performed