Miracle-dz/UniFAR-FTUs huggingface dataset:
Interpretation of combustion properties of raw-pyrolyzed lignite with kinetic data

ABSTRACT This study investigated the pyrolysis properties and kinetic behavior of Ermenek (Konya, Turkey) lignite. For this purpose, lignite was carbonized at 500°C and different heating rates (5, 10, 15, and 20°C/min). Proximate, elemental, XRF, and TGA-DTA lignite and chars were performed. Thermal analyses were performed at a heating rate of 10°C/min from room temperature to 1000°C and an inert (N2) gas flow of 50 ml/min. Peak temperatures and mass losses were determined from the data obtained from the experiments. By examining the thermogram curves, three different temperature regions depended on moisture loss, the release of volatile matter, and fixed carbon combustion. In addition, from these data, kinetic calculations were performed using Arrhenius and Coats-Redfern approaches, and the apparent activation energies were calculated for each region. The activation energy values calculated according to the Coats-Redfern kinetic model are significantly lower than those calculated according to the Arrhenius kinetic model. The highest activation energies calculated were: for Region 1 and Region 2 at 5°C/min heating rate and for Region 3 at 10°C/min heating rate.
Phytase in diets with different phytate concentrations for broilers

ABSTRACT: This study evaluated the effect of including different doses of phytase in broiler diets with different levels of phytate and reduced levels of calcium (Ca) and available phosphorus (aP), on broilers performance, digestibility (CAID), and bone characteristics. One thousand four hundred and four Cobb®500 broilers were used, distributed in a complete randomized design, and a 2x3 factorial arrangement, with two phytate levels (4.25 kg/ton - MP and 6.0 kg/ton - HP) and three phytase levels (0, 750, and 1500 FTU/kg) totalizing six treatments with nine replicates each. The animals that received phytase in their diet showed higher average feed intake and weight gain, and higher bone weight, % mineral residue, % Ca, and % P, when compared to the treatment without phytase (P < 0.01). Animals that received a diet containing HP with the inclusion of 1500FTU/kg phytase had the best CAID of nutrients (P < 0.0001). Regarding phytate, animals that received the MP diet showed a higher CAID of dry matter, and higher %P in the tibia when compared to animals that received the HP diet. The addition of phytase to diets with reduced Ca and aP levels can improve the CAIDs and bone characteristics in the presence of high phytate levels. However, reducing Ca and aP levels in the diet without adding phytase impairs the performance of broilers and has no effect on their carcass and cuts yield.
Does playful work design ‘lead to’ more creativity? A diary study on the role of flow

ABSTRACT Playful work design refers to the process through which employees proactively create conditions within work activities that foster enjoyment and challenge without changing the design of the job itself. Using flow theory, we propose that employees experience more work-related flow (work enjoyment, work absorption, and intrinsic work motivation) on the days when they playfully design their work – with positive implications for creative performance on these days. In addition, based on trait activation theory, we hypothesize that flow proneness strengthens the relationship of playful work design with work-related flow. A daily diary approach was employed to test the hypotheses. In total, 149 participants completed both baseline and daily questionnaires across five consecutive working days (total N = 552). Alternative Uses Task was used to measure objective creativity at work. Multilevel analysis showed that playful work design was positively associated with work-related flow, and work-related flow was significantly related to creativity – on a daily basis. In addition, employees high (vs. low) in flow proneness reported more flow and creativity when playfully designing their work. We discuss the theoretical and practical implications of these findings.
Electronic defect and trap-related current of (Ba0.4Sr0.6)TiO3 thin films

By employing a deep level transient spectroscopy (DLTS) technique, this work investigates the deep trap levels of rf-sputtered (Ba0.4Sr0.6)TiO3 (BST) thin films deposited at various temperatures. Arrhenius plots of DLTS spectra detect a single trap located at 0.45 eV in 450 °C deposited films, whereas two traps located at 0.2 and 0.40 eV appear in 550 °C deposited films. On the other hand, examining the I–V characteristics of the films at the temperature range of 298–403 K reveals the presence of two conduction regions in the BST film capacitors, having ohmic behavior at low voltage ( 6 V). The barrier height and trapped level are, respectively, estimated to be 0.46 and 0.51 eV, corresponding to the trap activation energy 0.4–0.45 eV obtained from our DLTS measurements. Compared with previous published reports, the trap distributed at 0.4–0.5 eV should be an intrinsic defect of BST and possibly ascribed to be oxygen vacancies. Meanwhi.
Propagation of Ultra-High Energy Cosmic Rays from Sources in the Super-Galactic Plane

We have performed detailed numerical simulations on the propagation of UHE protons in the energy range E = (1019.5–1022.0) eV in a relatively strong extragalactic magnetic field with a strength of B = (10–100)nG within about 40Mpc. In this case, the deflection angles of UHECRs become so large that the no counterparts problem can be simply solved. As for the source distribution, we assumed that it is proportional to the number distribution of galaxies within the Greisen–Zatsepin–Kuzmin sphere. We found many clusters, meaning small-scale anisotropy, in our simulations. It has also been shown that the observed energy spectrum is well reproduced in our models without any fine-tuned parameter. We used the correlation value in order to investigate statistically the similarity between the distribution of arrival directions of UHECRs and that of galaxies. We found that each correlation value for each parameter set begins to converge when the number of detected events becomes O(103). Since the expected number counts by the experiment of the next generation, such as TA, HiRes, Auger, and EUSO, are thought to be on the order of 103, we will be able to check in the very near future whether the source distribution of UHECRs is correlated with the Super-Galactic Plane or not. Compared with the AGASA data, a significant anisotropy on the arrival directions of UHECRs is found in the analyses of the first and second harmonics. This may originate from an incompleteness of the ORS database. This problem may also be solved if the source distribution is slightly changed. For example, this problem may be solved if we assume that UHECRs come from some galaxies, such as AGNs and radio galaxies.
Equations of Mathematical Diffraction Theory

Some Preliminaries from Analysis and the Theory of Wave Processes. Integral Equations of Diffraction Theory for Obstacles in Unbounded Medium. Wave Fields in a Layer of Constant Thickness. Analytical Methods for Simply Connected Bounded Domains. Integral Equations in Diffraction by Linear Obstacles. Short-Wave Asymptotic Methods on the Basis of Multiple Integrals. Inverse Problems of the Short-Wave Diffraction. Ill-Posed Equations of Inverse Diffraction Problems for Arbitrary Boundary. Numerical Methods for Irregular Operator Equations.
Effects of lime, NPK fertilizer and intercropping on selected properties of an acid mollic andosol in potato (solanum tuberosum) production systems

This study investigated the effects of intercropping, liming, and NPK fertilizer application on soil pH, available soil phosphorus (P), and total soil nitrogen (N) in potato production system during a two season’s field experiment in Molo sub-county, Kenya. A randomized complete block design with a split-split plot arrangement of treatments and three replicates was used. Main plot factors were NPK fertilizer levels (0 and 0.2 t ha -1 ). Lime rates (0 and 2 t ha -1 ) formed the sub-plots and cropping system (sole potato and Potato-Dolichos intercrop) the sub-sub plots. Application of lime increased the soil pH by 0.34 over the control. Sole NPK fertilizer application reduced the soil pH by 2% when compared to the control. Combined application of NPK fertilizer with lime increased soil available P by 6.5, 8 and 6 mg kg -1 , and 20.41, 3.91 and 3.58 mg kg -1 in the first and second season over the control, sole lime and sole fertilizer application, respectively. Application of NPK fertilizer under the Potato-Dolichos intercrop increased the total soil N by 0.08% over the control. The study concluded that intercropping, application of lime and NPK fertilizer to mollic Andosols of Molo Kenya is important in increasing soil pH, available P and total N.
Tectono‐sedimentary development of early synrift half‐graben subbasins in the Miocene Pohang Basin, southeastern Korea

Early synrift half‐grabens, herein named the Chilpo and Sinheung subbasins, have been newly recognised in the north‐central area of the Miocene Pohang Basin, Korea. The subbasins are closely aligned along an array of NNW‐trending strike‐slip faults and are bounded by ENE‐striking normal faults. The sediment infill of the subbasins consists of a deepening‐ and fining‐upward sequence of alluvial cobble to boulder conglomerate (FA1), alluvial to nearshore granule to pebble conglomerate and sandstone (FA2) and hemipelagic mudstone (FA3). The younger strata sequentially onlap the older strata in the hangingwall basement or transfer zones, whereas the footwall basement is directly onlapped by the younger hemipelagic mudstone. These patterns may have resulted from a series of domino‐style block rotations, in which subsidence along normal faults caused the differential creation of accommodation space, whilst simultaneous uplift in the upslope of rotated hangingwall blocks controlled denudation, the shedding of sediments to downslope areas and asymmetric stacking of sediments in both subbasins. In contrast to the western margin of the Pohang Basin, where large footwall‐derived fan‐delta systems developed along the bounding faults, in the Chilpo and Sinheung subbasins, small hangingwall‐derived alluvial‐fan deltas formed during rifting. The development of these domino‐style half‐grabens would have resulted from the detachment and simultaneous transrotation of the crustal block away from the northwest during accelerated extension in the Pohang Basin. Recent geophysical studies have detected very thin basin‐fill sediments in the north‐central Pohang Basin and faults that are similar in orientation to those identified in this study, thereby supporting our observations. These findings confirm the early opening of the Pohang Basin, supporting the hypothesis that all of the Miocene basins in southeastern Korea formed in a setting of NW–SE extension, and further suggest the development of the wedge‐shaped transtensional basin, in response to the opening of the East Sea (Sea of Japan) after 17 Ma.
Aeromonas from farmed tambaqui from North Brazil: molecular identification and pathogenic potential

ABSTRACT: The aim of this study was to molecularly identify different species of Aeromonas isolated from farmed tambaqui (Colossoma macropomum) from North Brazil, and evaluate their pathogenic potential by the presence of virulence genes. From the extraction of bacterial DNA, PCR (polymerase chain reaction) of the primers 16S rDNA, aerA (cytolytic enterotoxin), ast (cytotoxic enterotoxin) and act (cytotoxic enterotoxin) were performed. Of 24 isolates evaluated, eight amplified the ast gene, one amplified the act gene, but the areA gene was not amplified in any isolate. Sequencing of the 16S rRNA primer revealed a predominance of Aeromonas jandaei specie (92%). Aeromonas taiwanensis (4%), for the first time isolated from fish in Brazil, and Aeromonas hydrophila (4%) each appeared as just one isolate. Results showed that 32% of Aeromonas isolated from farmed tambaqui have considerable pathogenic potential for systemic damage, since the selected PCR primers are encoding the most common virulence genes in Aeromonas with high pathogenic intensity.
Surviving adversity: personal and career resilience in the AEC industry during the COVID-19 pandemic

Abstract This study aimed to explore the personal and career resilience of project management practitioners working in the Architectural, Engineering, and Construction (AEC) industries and their organizational support in the context of the COVID-19 pandemic. The global pandemic offered a unique opportunity to explore resilience both as a state (using quantitative scales) and as a process (using qualitative responses) in the context of a shared transboundary disturbance in normal routines. A mixed methods approach was used to triangulate quantitative and qualitative data from an online survey which included established scales and open-ended questions. Informed by a total of 121 valid survey responses, hierarchical regression analysis of the scales provided insights into the relationship between career and personal resilience and how personal resilience contributed to greater career resilience and the ability to positively adapt to the pandemic’s consequences. The quantitative analysis was complemented by a thematic analysis of the open-ended responses to identify the forms of organizational support that were important for resilience building during the pandemic. Organizational resources, such as training, mentoring, increased communication, and greater management support fostered employee adaptation to the pandemic shock. Evidence-based recommendations are made for AEC organizations to facilitate better workforce preparation for future adversities through providing effective resilience-promoting support mechanisms. The findings add to the body of knowledge by providing a better understanding of the importance of personal and career resilience and the role of organizational support in the process of resilience-building during adversities.
Salivary Proteomics Reveals Significant Changes in Relation to Alzheimer's Disease and Aging.

BACKGROUND Aging is a risk factor for several pathologies as Alzheimer's disease (AD). Great interest exists, therefore, in discovering diagnostic biomarkers and indicators discriminating biological aging and health status. To this aim, omic investigations of biological matrices, as saliva, whose sampling is easy and non-invasive, offer great potential. OBJECTIVE Investigate the salivary proteome through a statistical comparison of the proteomic data by several approaches to highlight quali-/quantitative variations associated specifically either to aging or to AD occurrence, and, thus, able to classify the subjects. METHODS Salivary proteomic data of healthy controls under-70 (adults) and over-70 (elderly) years old, and over-70 AD patients, obtained by liquid chromatography/mass spectrometry, were analyzed by multiple Mann-Whitney test, Kendall correlation, and Random-Forest (RF) analysis. RESULTS Almost all the investigated proteins/peptides significantly decreased in relation to aging in elderly subjects, with or without AD, in comparison with adults. AD subjects exhibited the highest levels of α-defensins, thymosin β4, cystatin B, S100A8 and A9. Correlation tests also highlighted age/disease associated differences. RF analysis individuated quali-/quantitative variations in 20 components, as oxidized S100A8 and S100A9, α-defensin 3, P-B peptide, able to classify with great accuracy the subjects into the three groups. CONCLUSION The findings demonstrated a strong change of the salivary protein profile in relation to the aging. Potential biomarkers candidates of AD were individuated in peptides/proteins involved in antimicrobial defense, innate immune system, inflammation, and in oxidative stress. RF analysis revealed the feasibility of the salivary proteome to discriminate groups of subjects based on age and health status.
THE BLOB CRASHES INTO THE MIRROR: MODELING THE EXCEPTIONAL γ-RAY FLARING ACTIVITY OF 3C 454.3 IN 2010 NOVEMBER

3C 454.3 is a prominent flat-spectrum radio quasar that in recent years attracted considerable attention because of its variable high-energy emissions. In this paper, we focus on the exceptional flaring activity of 3C 454.3 that was detected by AGILE and by Fermi-LAT in 2010 November. In the light of the time-varying data ranging from the radio, optical, and X-ray up to GeV γ-ray bands, we discuss a theoretical framework addressing all data in their overall evolution. For two weeks, the source has shown a plateau of enhanced GeV emission preceding a sudden major flare lasting about three days before decaying. The γ-ray flare onset is abrupt (about six hours), and is characterized by a prominent “Compton dominance” with the GeV flux exceeding the pre-flare values by a factor of four to five. During this episode, the optical and X-ray fluxes increased by a factor of around two. Within the standard framework of a jet launched with a Lorentz bulk factor Γ ∼ 10 from a central black hole, we explore the yields of two alternatives. Case 1, with high-energy emission originating within the broad line region (BLR); and Case 2, with most of it produced outside at larger distances of a few parsecs. We show that Case 1 has considerable problems in explaining the whole set of multifrequency data. Case 2, instead, leads to a consistent and interesting interpretation based on the enhanced inverse Compton radiation that is produced as the jet crashes onto a mirror cloud positioned at parsec scales. This model explains the γ-ray versus optical/X-ray behavior of 3C 454.3, including the otherwise puzzling phenomena such as the prominent “orphan” optical flare, and the enhanced line emission with no appreciable γ-ray counterpart that preceded the GeV γ-ray flare. It also accounts for the delayed onset of the latter on top of the long plateau. Our modeling of the exceptional 3C 454.3 γ-ray flare shows that while emission inside the canonical BLR is problematic, major and rapid variations can be produced at parsec scales with moderate bulk Lorentz factors Γ ≈ 15. Our “crashed mirror” model is also applicable to other blazar flares marked by large Compton dominance of the emitted radiation such as the flare of PKS 1830−211 in 2010 October.
Special metrics and stability for holomorphic bundles with global sections

In this paper we describe canonical metrics on holomorphic bundles in which there are global holomorphic sections. Such metrics are defined by a constraint on the curvature of the corresponding metric connec- tion. The constraint is in the form of a P.D. E which looks like the Hermitian-Yang-Mills equation with an extra zeroth order term. We identify the necessary and sufficient condition for the existence of solutions to this equation. This condition is given in terms of the slopes of subsheaves of the bundle and defines a property similar to stability. We show that if a holomorphic bundle meets this stability-like criterion, then its Chern classes are constrained by an inequality similar to the Bogomolov-Gieseker inequality for stable bundles.
What Affects the Economic Resilience of China’s Yellow River Basin Amid Economic Crisis—From the Perspective of Spatial Heterogeneity

This paper contributes to the study of regional economic resilience by analyzing the dynamic characteristics and influence mechanisms of resilience from the perspective of spatial heterogeneity. This paper focuses on the resistance and recoverability dimensions of resilience and analyzed the dynamic changes in economic resilience in China’s Yellow River Basin in response to the 2008 economic crisis. The multi-scale geographical weighted regression model was utilized to examine the effect of key factors on regional economic resilience. Our findings show the following: (1) The resistance of the Yellow River Basin to the financial crisis was high; however, the recoverability decreased significantly over time. (2) The spatial heterogeneity of driving factors was significant, and they had different effect scales on economic resilience. Related variety, government agency, environment, and opening to the global economy had a significant effect on economic resilience only in a specific small range. Specialization, unrelated variety, and location had opposite effects in different regions of the Yellow River Basin. (3) Specialization limited the area’s resistance to shock but enhanced the recoverability. Related variety improved regional economic resilience. Unrelated variety was not conducive to regional resistance to shock and had opposite effects on the recoverability in different regions. (4) Government agency and financial market promoted regional economic resilience. Environment pollution and resource-based economic structure limited regional economic resilience. Opening to the global economy and urban hierarchy limited regional resistance to shock, but strong economic development had the opposite effect of improved regional resistance. The location in the east of the Yellow River Basin enhanced the recoverability; however, the location in the west limited the recoverability.
Assessment of Treatment Outcomes of Skeletal Class II Malocclusion Using Forsus Fatigue Resistant Device

Purpose: This study was carried out to assess treatment outcomes of Forsus Fatigue Resistant Device (FFRD) used in correction of skeletal Class II malocclusion through lateral cephalometric analysis. Subjects and methods: The study was conducted on ten Class II male patients. Treatment was followed through leveling and alignment till heavy 0.019 x 0.025-inch stainless steel archwires reached, then FFRD was inserted. The FFRD protocol ended when an overcorrected edge to edge incisal relation was obtained. Lateral cephalometric radiographs were taken before therapy and after completion of FRD therapy. The following skeletal parameters were measured from lateral cephalograms: SNA, SNB and ANB angles and linear measurement of total mandibular length, ramus height and corpus length. Measured dental parameters were maxillary and mandibular incisors inclination, amount of mesial movement of mandibular first molar, overjet and overbite. Results: The FFRD had a combined skeletal and dentoalveolar effect. It enhanced the sagittal skeletal relationships through maxillary restriction and mandibular forward repositioning. Dentoalveolar effects were significant in both arches and significant enhancement in overjet and overbite were found. Conclusions: The FFRD is effective in correcting Class II malocclusion through skeletal and dentoalveolar changes.