Miracle-dz/UniFAR-FTUs huggingface dataset:
Impact of power level and refill liquid composition on the aerosol output and particle size distribution generated by a new-generation e-cigarette device

ABSTRACT The new high-power Electronic Nicotine Delivery System (ENDS) can generate aerosols with higher nicotine concentrations than older ENDS. Aerosol particle sizes affect deposition patterns and then plasma nicotine levels in vapers. Consequently, understanding the factors influencing particle size distribution of high-power ENDS is relevant to assess their performance in terms of nicotine delivery. The particle size distribution and the aerosol output (aerosol mass) were measured using cascade impactors. The effects of the refill liquid composition (80% PG/20% VG vs. 80% VG/20% PG; PG refers to propylene glycol and VG to vegetable glycerin) and the power level of the battery (from 7 W to 22 W) were investigated. The aerosol output increases significantly with the power level following a logarithmic law. The PG/VG ratio also has an impact on the aerosol output. The higher the VG content in the refill liquid, the higher is the aerosol output. Besides, particle size distribution is positively related to the power level, following linear correlations between the mass median aerodynamic diameter (MMAD) and the power level in the range of 7–22 W. A moderate impact of the PG/VG ratio on size distribution is equally observed. Changes in the power level allow the transition between a dominant mode with MMAD from 613 nm to 949 nm. We demonstrated that the power level can strongly change the aerodynamic properties of high-power ENDS, especially at high voltage. Associated with the aerosol nicotine level assessment, MMAD could be determined as a means for comparing ENDS devices and nicotine delivery. Copyright © 2018 American Association for Aerosol Research
Bounces with O(3) x O(2) symmetry

We study the contribution to the decay of de Sitter vacua from bounces with O(3) x O(2) symmetry. These correspond to the thermal production of a vacuum bubble at the center of a horizon volume with radius r_H and a temperature defined by the horizon. They are analogues of the flat spacetime bounces, independent of Euclidean time, that correspond to thermal production of a critical bubble. If either the strength of gravity or the false vacuum energy are increased, with all other parameters held fixed, the bounces approach, and eventually merge with, the Hawking-Moss solution. Increasing the height of the barrier separating the true and false vacuum, and thus the tension in the bubble wall, causes the center of the bubble wall to approach, but never reach, the horizon. This is in contrast with the prediction of the thin-wall approximation, which inevitably breaks down when the wall is near the horizon. Our numerical results show that the Euclidean action of our solutions is always greater than that of the corresponding O(4)-symmetric Coleman-De Luccia bounce.
La-, Mn- and Fe-Doped Zirconia Washcoats Deposited on Monolithic Reactors via Sol-Gel Method: Characterization and Evaluation of their Mass Transfer Phenomena and Kinetics in Trichloroethylene Combustion

Abstract La-, Mn- and Fe-doped ZrO2 was synthesized using the sol-gel method, washcoated on cordierite monoliths and used in trichloroethylene (TCE) combustion. A sol from sol-gel synthesis method was used to obtain the zirconia washcoatings. The washcoatings deposited on the cordierite monolith materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and N2 physisorption measurements, being the crystalline phase determination the most correlate with the catalytic activity. The washcoat properties were correlated to their performance in trichloroethylene combustion. The catalytic washcoatings contained a mixture of crystalline tetragonal ZrO2 and monoclinic ZrO2, and the monoclinic phase exhibited strong interactions with the α-cordierite crystalline phase. For the kinetic tests, the mass transfer into the washcoated monolith channels was evaluated using a recently developed model for the internal mass transfer coefficients for diffusion and reactions in catalytic monoliths. This model involves three resistances. In a plot of the overall resistance as function of the Thiele modulus was determinate that he reaction occurred in the kinetically controlled regime. The kinetic data were fit to two Langmuir–Hinshelwood (LH) models, and the reaction rate was fitted as a function of the trichloroethylene inlet concentration. The adsorption parameters obtained with both LH models were validated based on thermodynamic criteria for the changes in the standard enthalpy of adsorption(${\Delta}H_{ads}^0$ΔHads0) and standard total entropy of adsorption (${\Delta}S_{ads}^0$ΔSads0). It was found that adsorbed TCE and oxygen atoms should be more mobile over the catalyst, which had a higher proportion of tetragonal phase than monoclinic phase of zirconia. The La, Fe-doped catalyst exhibited the highest activity, mainly due the presence of tetragonal zirconia.
Social and Emotional Development Among Gifted Students: Enhancing Decision Making Skills And Resilience

Socialemotional issues and gifted and talented students (GTS) are inseparable. Guidance for managing social and emotional issues among GTS is crucial to optimally promote student progress and stimulate excellence in the country. This study aims to reveal the need to improve decision making skills and resilience among GTS which is also a strategic approach to helping these groups managing their social and emotional issues. In the meantime, counselors are the best profesional helper and they have to play an important role in helping the GTS for improving their skills and abilities thus helping them deal with social and emotional issues.
Comparative Study between Cardioplegic Solution (Custodiol) versus Conventional Cardioplegic Solutions in CABG Patients

Custodiol cardioplegia is appealing for insignificantly intrusive heart medical procedure, as a solitary portion gives a significant stretch of myocardial insurance. In spite of far and wide use in Europe, there is little information affirming its viability contrasted and regular (blood or crystalloid) cardioplegia. We pointed in this examination to set up a correlation among old and most recent methods of cardioplegia with respect to preferences and burdens of both. An imminent accomplice study directed in Cardiothoracic Department, Benha University Hospital during the time frame from March 2018 to May 2020 and included 120 patients of cardiovascular medical procedure which requires cardioplegia and cardiopulmonary detour partitioned into two gatherings: bunch An included 60 patients who got custodial while bunch B included 60 patients who got customary cardioplegia.Our result demonstrated that in gathering the mean EF inside 3 and a half year post-employable (58.8 and 57.9 separately) while in gathering B (58.1 and 57.6 individually) with no measurably distinction. Left ventricular end systolic pressing factor in gathering B post-employable 6 m (2.7) was lower than that of gathering A (3.5) and there was critical factual distinction (P esteem =0.006 post 6 m). While postoperative discharge portion in the two gatherings indicated unimportant measurable distinction. The utilization of Custodiol is helpful, straightforward, protected and more compelling than monotonous intentionally and without hesitation cardioplegia in ensuring the myocardium in complex cardiovascular tasks particularly postoperative inotropic underpins, ICU stay and emergency clinic stay periods.
The Influence of Parental Alcoholism on Parent–Adolescent Relationships From Adolescence Into Emerging Adulthood: A Qualitative Inquiry

Exposure to parental alcoholism can inhibit a child’s ability to become a successfully functioning young adult. Based on qualitative interviews, this study provides a deeper understanding of how those parent–adolescent relationships are associated with risky internalizing and externalizing behaviors. This qualitative study explores the lives of 13 young adult children of alcoholics (ACOAs) and provides a unique perspective through an adaptive developmental approach by evaluating emerging adults who were ACOAs and successfully functioning. Compelling findings emerged with respect to how young adults define alcoholism and being a child of alcoholism and how the parent–adolescent relationship adapts in the unstable environment associated with family alcoholism. Salient findings revealed that when emotional and physical detachment from a parent’s alcoholic behaviors in addition to an acceptance that those behaviors are not the adolescent’s responsibility, individuals gained better control of their environment aiding them in becoming healthy, functioning young adults.
Long-Term Study of Borrelia and Babesia Species Distribution in Ixodes Ricinus and Dermacentor Recticulatus Ticks Removed From Humans in Poland, 2016-2019

Monitoring changes in the prevalence of different Borrelia genospecies/ species in ticks might be an important indicator of risk assessment and of differences in pathogenicity in humans. Furthermore, the evaluation of pathogens in feeding ticks represents the risk of human exposure better than studies on questing ticks. The objective of our study was to assess the prevalence and distribution of Borrelia and Babesia species in ticks removed from humans, in a larger sample collected for several months during four years of studies. We confirmed high Borrelia prevalence, including B. miyamotoi, in ticks removed from humans as well as the shift in Borrelia genospecies/ species frequency of occurrence during the four-year study. Despite the fact that Babesia prevalence was relatively low, the majority of tested isolates are considered to be pathogenic for humans. The results of our study have also shown that Borrelia and Babesia coinfections in ticks are more common in Borrelia-infected ticks. Even if the overall risk of developing Lyme borreliosis after a tick bite in Europe is rather low, the knowledge of prevalence and distribution of Borrelia and Babesia species in ticks might be an important indicator of both tick-borne disease risk and pathogenicity assessment.
Hydrogen and Metal Line Absorption Around Low-Redshift Galaxies in Cosmological Hydrodynamic Simulations

We study the physical conditions of the circum-galactic medium (CGM) around z = 0.25 galaxies as traced by Hi and metal line absorption, using cosmological hydrodynamic simulations that include galactic outflows. Using lines of sight targeted at impact parameters from 10 kpc to 1 Mpc around galaxies with halo masses from 10 11 10 13 M⊙, we study the physical conditions and their variation with impact pa- rameter b and line-of-sight velocityv in the CGM as traced by Hi, Mgii, Siiv, Civ, Ovi, and Neviii absorbers. All ions show a strong excess of absorption near galaxies compared to random lines of sight. The excess continues beyond 1 Mpc, re- flecting the correlation of metal absorption with large-scale structure. Absorption is particularly enhanced within aboutv < 300 kms −1 and roughly 300 kpc of galaxies (with distances somewhat larger for the highest ion), approximately delineating the CGM; this range contains the majority of global metal absorption. Low ions like Mgii and Siiv predominantly arise in denser gas closer to galaxies and drop more rapidly with b, while high ions Ovi and Neviii trace more diffusely distributed gas with a comparatively flat radial profile; Civ is intermediate. All ions predominantly trace T � 10 4−4.5 K photo-ionised gas at all b, but when hot CGM gas is present (mostly in larger halos), we see strong collisionally-ionised Ovi and Neviii at b 6 100 kpc. Larger halo masses generally produce more absorption, though overall the trends are not as strong as that with impact parameter. These findings arise using our favoured outflow scalings as expected for momentum-driven winds; with no winds, the CGM gas remains mostly unenriched, while our outflow model with a constant velocity and mass loading factor produce hotter, more widely dispersed metals.
Impact of Cu(II) and Zn(II) ions on the functional properties of new PAMAM metallodendrimers

In this study, the synthesis, spectral characterization and in vitro antimicrobial activity of two new metallodendrimers based on the PAMAM dendrimer modified with four 1,8-naphthalimide units are described. The chemical structure of metallodendrimers has been analyzed by FT-IR, UV-Vis, fluorescence, NMR spectroscopy, MS and SEM analysis. The antimicrobial activity of the new compounds has been tested in vitro against different model pathogenic microorganisms. The results showed good inhibitory activity of the compounds better expressed against the tested Gram-positive bacteria and yeasts. Cotton fabrics were treated with each of the dendrimers, and their morphology, antimicrobial activity and biofilm inhibiting potential were investigated. Both metallodendrimers showed stronger antimicrobial and biofilm inhibiting abilities compared to the initial dendrimer ligand.
Technology-Enhanced Language Learning (Tell) Tools: A Survey on Attitude of a Private Secondary School ESL Teachers

The use of Technology-Enhanced Language Learning (TELL) has become a significant part of the learning process in and out of the class. TELL tools use in the classroom is vital for giving teachers opportunities to teach and apply based on the advancement of 21st century. However, studying the attitude of ESL teachers related to TELL tools used in teaching and learning can assist teachers in becoming successful technology users from the context of an Independent Chinese Secondary School. This study aims to determine ESL teachers’ attitudes towards the use of TELL tools. A survey research design with a quantitative method was conducted on 30 private secondary school teachers using convenience sampling. The data was collected from a set of five-point Likert scale survey questionnaire and analyzed using descriptive statistics that derived mean and standard deviation through SPSS Version 26. The results discovered that ESL teachers’ attitudes in the use of TELL tools based on the four constructs from Technology Acceptance Model (TAM); Perceived Usefulness (PU), Perceived Ease of Use (PE), Behavioural Intention (BI), and Attitude (A) received the highest mean and standard deviation compared to the other statements in the constructs. It is hoped to provide the policymakers with a better picture of the ESL teachers' attitude of using TELL tools from a private secondary school background. Future research can focus on students’ attitudes towards the use of TELL tools to further guide in ideal language learning and teaching among teachers and students.
Physiological Responses and Antioxidant of Wheat Cultivars in PGR -Mediated Alleviation of Drought Stress

Drought is one of the most important abiotic stresses and factors limiting the successful production of plant products worldwide and has adverse effects on plant growth and other metabolic processes. The role of exogenous individual or combined application of Silicon (Si) and Cycocel (CCC) (control, 3.6gL-1 Si, 210mgL-1 CCC, and 3.6gL-1 Si + 210mgL-1 CCC) on grain yield and some key physiological characteristics of wheat (Triticum aestivum L.) cv. Gascogen (drought-sensitive) and Aflak (drought-tolerant) was investigated under field water-stress conditions (100% and 40% field capacity). Drought stress caused a considerable reduction in biological yield, yield and yield components, relative water content and leaf water potential of both cultivars. Application of Si and CCC effectively improved these parameters in water-deficit treatments. Moreover, water-limited conditions markedly promoted the activities of key antioxidant enzymes including peroxidase, ascorbate peroxidase, catalase and superoxide dismutase as well as the levels of Malondialdehyde (MDA) and hydrogen peroxide (H2O2), while enhancing the accumulation of soluble sugars, potassium, magnesium and calcium in leaf tissues. Application of Si and CCC further enhanced the activities of the key antioxidant enzymes and accumulation of osmolytes, and decreased the levels of H2O2 and MDA in drought stressed plants; the positive effects of Si were greatest when it was applied with CCC. Synergistic effects of Si + CCC application on yield and physiological parameters were apparent compared with Si or CCC applied separately water-stress alleviation and yield improvement in the wheat cultivars by Si and CCC application was attributable to partly improved osmotic adjustment and antioxidant activity as well as to more favorable water status under stress conditions. Overall, Si and CCC application proved to have great potential in promoting grain yield of wheat in drought-prone areas.
Calixarene based nanocomposite materials for high-performance supercapacitor electrode

A functionalised calixarene {4-sulphatocalix[6]arene hydrate (SC6)} stabilises MoS2/partially reduced graphene oxide (rGO) nanosheet. Such stabilised SC6–rGO/SC6–MoS2 and SC6 doped polyaniline (PANI) together form a nanocomposite hybrid material for supercapacitor electrodes. The nanocomposite is fabricated by an in situ polymerization method. Transmission electron microscopy (TEM) results suggest that PANI nanostructures grow homogeneously on the surfaces of SC6 functionalised MoS2. Calixarene acts as a dopant for PANI as well as a stabiliser for the 2D nanosheets of rGO/MoS2. The characterisation of composites and the basic components is done using various techniques, namely, solid-state FT-IR spectroscopy, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The electrochemical performance is analysed by cyclic voltammetry (CV), galvanostatic charge/discharge and electrochemical impedance spectrometry (EIS). It is found that the SC6 functionalised MoS2 and SC6 doped PANI form a uniform nanocomposite. The synthesised composites show high specific capacitance (691 F g−1) and good cycling stability during charge–discharge process when used as supercapacitor electrodes. The improvement in electrochemical performance of composites is assigned to synergistic effect of SC6 stabilised MoS2 and doped PANI. Our investigation highlights the importance of use of calixarene in composites for improved supercapacitor performance. The role of calixarene in the present study paves the way for the application of alike materials in composite supercapacitors for energy storage applications.
The power of 'executional greenwashing'. Evidence from the automotive sector

Using classical models of information processing and persuasion, this study examines two interdependent issues regarding 'executional greenwashing'. First, it questions the efficiency of executional elements evoking nature to artificially enhance the brand's ecological image. Second, it studies the potential efficiency of environmental performance labels to help consumers form an accurate evaluation of the brand's ecological image and counterbalance this specific type of greenwashing. An experiment conducted with a representative sample of French consumers reveals the efficiency of greenwashing to mislead consumers in their evaluation of brand ecological image, whatever their degree of environmental expertise. Furthermore, the display of environmental performance labels is not enough to help consumers to revise their judgment, even expert ones. Precisely, environmental performance labels are efficient to guide brands' perceptions but only among expert consumers, and only in neutral advertising setting: they are not sufficient to counterbalance greenwashing. The authors discuss theoretical and regulatory implications.
Exponential stability of the Kirchhoff plate with thermal or viscoelastic damping

The exponential stability of the semigroup associated with the Kirchhoff plate with thermal or viscoelastic damping and various boundary conditions is proved. This improves the corresponding results by Lagnese by showing that the semigroup is still exponentially stable even without feedback control on the boundary. The proof is essentially based on PDE techniques and the method is remarkable in the sense that it also throws light on applications to other higher-dimensional problems.
Mechanism of hydrolyzable metal ions effect on the zeta potential of fine quartz particles

ABSTRACT The effects of ion species, cation valence, ionic strength, and hydrated ionic radius on the zeta potential of quartz have been systematically studied through the measurement of zeta potential, sedimentation rate, and aggregation observation. The results show that the interaction between hydrolysis components and quartz particles results in three critical points – CR1, CR2, and CR3. The results of sedimentation and aggregation observation are in good agreement with the changes of the zeta potential in 0.1 M MgCl2, the maximum sedimentation rate being 99.26% at pH 10.85. When the pH is around 6.25 or 10.00, the sedimentation rate is relatively lower and the size of aggregation smaller. The adsorption of hydrolyzable multivalent metal ions on the quartz surface is a combination of three adsorption forms, namely electrostatic adsorption, hydroxyl complex adsorption, and hydroxide precipitation adsorption. Then the hydrolysis properties of metal ions and the surrounding environment determine the action of the hydrolysis components and the main form of adsorption. GRAPHICAL ABSTRACT
Sulfate‐Assisted Interfacial Engineering for High Yield and Efficiency of Triple Cation Perovskite Solar Cells with Alkali‐Doped TiO2 Electron‐Transporting Layers

Facile electron injection and extraction are two key attributes desired in electron transporting layers to enhance the efficiency of planar perovskite solar cells. Herein it is demonstrated that the incorporation of alkali metal dopants in mesoporous TiO2 can effectively modulate electronic conductivity and improve the charge extraction process by counterbalancing oxygen vacancies acting as nonradiative recombination centers. Moreover, sulfate bridges (SO42−) grafted on the surface of K‐doped mesoporous titania provide a seamless integration of absorber and electron‐transporting layers that accelerate overall transport kinetics. Potassium doping markedly influences the nucleation of the perovskite layer to produce highly dense films with facetted crystallites. Solar cells made from K:TiO2 electrodes exhibit power conversion efficiencies up to 21.1% with small hysteresis despite all solution coating processes conducted under ambient air conditions (controlled humidity: 25–35%). The higher device efficiencies are attributed to intrinsically tuned electronic conductivity and chemical modification of grain boundaries enabling uniform coverage of perovskite films with large grain size.
Finite degrees of freedom for the refined blow-up profile of the semilinear heat equation

We refine the asymptotic behavior of solutions to the semilinear heat equation with Sobolev subcritical power nonlinearity which blow up in some finite time at a blow-up point where the (supposed to be generic) profile holds. In order to obtain this refinement, we have to abandon the explicit profile function as a first order approximation, and take a non explicit function as a first order description of the singular behavior. This non explicit function is in fact a special solution which we construct, obeying some refined prescribed behavior. The construction relies on the reduction of the problem to a finite dimensional one and the use of a topological argument based on index theory to conclude. Surprisingly, the new non explicit profiles which we construct make a family with finite degrees of freedom, namely $\frac{(N+1)N}{2}$ if $N$ is the dimension of the space.