Miracle-dz/UniFAR-FTUs huggingface dataset:
Al2O3-CO2 Nanofluid Transport Properties: A Molecular Dynamics Study and Machine Learning Predictive Modelling

Abstract Nanofluids are recognized to have significant difference in thermal/transport properties in contrast to the corresponding heat transfer fluids. The viscosity and thermal conductivity of carbon dioxide, which are the transport properties, play the vital role in swiftly growing applications of enhanced oil recovery process and industrial refrigeration. The current study presents different machine learning models to predict the transport properties of alumina-carbon dioxide nanofluid along with the molecular simulation approach. Several machine learning methods with linear regression, K-Nearest Neighbors, and Decision Tree are used to see the accuracy in determining these transport properties. The input variables taken to predict these transport properties are temperature, nanoparticle volume fraction and size. Molecular dynamics simulations using Large-scale Atomic/Molecular Massively Parallel Simulator are executed to determine the properties. Pearson correlation was established between the independent and dependent variables to check the dependency of the input variables on thermal conductivity and µ. Finally, we performed the statistical coefficients of determination to resolute the accuracy of the results obtained. It is concluded from the study that, the decision tree model with an accuracy of 99% is the best suited model for the prediction of transport properties of current nanofluid over the temperature range, volume fractions, and varied nanoparticle sizes.
Effective stagnant thermal conductivity of wire screens

fore, the absorption of radiation by inert particles is found to play an important role in indirectly igniting combustible gases. The change of particle number density at a fixed particle size also exerted a strong influence such that the smaller the particle number density, the longer the ignition delay. As the particle number density decreases, the radiation plays a smaller role, because the absorption coefficient decreases with a fixed particle size and the ignition delay increased.
Dislocations and Fault Surfaces in Synthetic Quartz

Defects in a rather perfect synthetic quartz crystal have been surveyed by x‐ray topography. Etching behavior and stress birefringence were also studied. The crystal, grown from a z‐plate seed, contained Na and Al in concentrations of 50 ppm by weight. The crystal had grown in the c direction with low dislocation density (∼ 3000 lines cm−2). The majority of dislocations made about 10° with the c axis, only 15% had Burgers vectors with a c‐axis component. Cellular growth had developed as growth in the c direction proceeded. The cell walls were identified with fault surfaces made visible by diffraction contrast. These surfaces were inclined at fairly small angles with [0001] and their intersections with (0001) formed an irregular polygonal network. Dislocations congregated in or near the fault surfaces in the later stages of growth. The fault surfaces outcropped at the grooves between protuberances on the rough external crystal surface of mean orientation (0001). The presence of fault fringes indicates impu.
Effect of Common Cooking and Drying Methods on Phytochemical and Antioxidant Properties of Corchorus olitorius Identified Using Liquid Chromatography-Mass Spectrometry (LC-MS)

In this study, Corchorus olitorius leaves were subjected to different thermal treatments (blanching, boiling, drying, frying, and steaming) and analyzed, total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity. Furthermore, Fourier transform infrared spectroscopy (FTIR) was used to identify functional groups, while metabolites were identified with LC-MC. The TPC and antioxidant activity of C. olitorius were significantly (p < 0.05) increased by cooking and drying. The steam-cooked sample had the highest TPC (18.89 mg GAE/g) and TFC (78.42 mg QE/g). With ABTS, FRAP, and DPPH assays, the steam-cooked sample exhibited the highest antioxidant activity of 119.58, 167.31, and 122.23 µM TE/g, respectively. LC-MS identified forty-two (42) metabolites in C. olitorius that included phenolic acid derivatives, flavonoid derivatives, and amino acid derivatives. Overall, steaming appears to be the best cooking method, with respect to the retention of phytochemical compounds and antioxidant activity.
Microcavity-induced modification of the dipole-dipole interaction

We consider the feasibility of controlling the energy transfer between an unexcited and an excited atom using microcavities. The excitation-transfer probability is related to the strength of the dipole-dipole interaction and thus the excitation-transfer rates could be increased by enhancing the dipole-dipole interaction. We demonstrate this enhancement with an explicit three-dimensional calculation for a metallic cavity, which we characterize with a realistic dielectric function. We also demonstrate the shifts in cavity resonances from their ideal positions mλ/2 (m is an integer and λ is the wavelength).
A simple model of the plane gas bubble in a finite liquid

Using a method due to Davies & Taylor (1950), a simple model is employed to derive the velocity of a two-dimensional gas bubble rising in liquid along the axis of a channel of finite width. The asymptotes of the solution agree well with previous results and an experimental investigation confirms the effect of channel width on bubble velocity. Measured values of velocity are, however, approximately 9% higher than theoretical values due to the three-dimensional nature of the real flow.
Assessment of Gnaphalium viscosum (Kunth) Valorization Prospects: Sustainable Recovery of Antioxidants by Different Techniques

This work investigates the prospects for exploitation of Gnaphalium viscosum (Kunth) abundant but with limited applications till present biomass. The feasibility of traditional techniques (two-phase solvent, and the benchmark Soxhlet extraction) and supercritical extraction without/with a cosolvent at T = 40–60 °C and p = 30–50 MPa was examined to explore the possibility of recovering phytochemicals from G. viscosum leaves, flowers and stems. The efficiency of the techniques was assessed and compared based on yield, influence of solvents used, total phenolic content and antioxidant activity of the extracts. Phenolics of different complexities were identified and quantified by applying LC (LC–MS/MS, and LC–HRAM), while the fatty acid profile was determined by GC–FID. The results of this extensive study demonstrated the huge valorization potential and prospects of G. viscosum, since highly potent antioxidants such as kaempferol, kaempferol-3-O-β-d-glucoside (astragalin), and chlorogenic acid were ascertained in considerable amounts. Furthermore, for the first time, the presence of leontopodic acid, a greatly substituted derivative of glucaric acid, was detected in the species.
The impact of Post-Transplant doxycycline in AL amyloidosis – updated results after Long-Term follow up

Abstract Introduction The current treatment paradigm of AL amyloidosis lacks effective fibril-directed therapies. Doxycycline has been shown to have anti-fibril properties in preclinical models. In 2012, we reported that posttransplant prophylaxis with doxycycline was associated with improved survival compared to penicillin in patients with haematologic response. We provide here updated results after long-term follow up. Methods We included 553 patients who underwent transplant between July 24th, 1996, and June 24th, 2014. Doxycycline 100 mg daily was used for prophylaxis in patients with penicillin allergy; since 2013, doxycycline was used as the standard for prophylaxis. Prophylaxis was typically continued for a year after transplant. Results The median follow-up from transplant was 12.7 years. Doxycycline was used for prophylaxis in 33% of patients; the rest received penicillin. The median time to next treatment was 6.0 (95%CI; 4.4–8.8) years and 6.0 (95%CI; 4.9–7.1) years in the doxycycline and penicillin groups, respectively (p = .89). The median overall survival was 12.0 (95%CI: 11.0–19.6) years and 11.0 (95%CI: 9.6–12.7) years in the 2 groups, respectively (p = .17). There was a minimal trend towards improved survival with doxycycline among patients with ≥ very good partial response and among patients with organ response that was not statistically significant. Conclusion After long-term follow-up, there is no clear evidence to support benefit of doxycycline in the post-transplant setting.
Dual regulation of Kv7.2/7.3 channels by long-chain n-alcohols

Jeong et al. reveal that n-alcohols differentially regulate Kv7.2/7.3 channels depending on their carbon chain length. The findings suggest that long-chain n-alcohols regulate Kv7.2/7.3 channels through two separate binding sites and that their net stimulatory effects are associated with their anesthetic activity.
A Meta-analysis of Morphological Awareness Deficits in Developmental Dyslexia

ABSTRACT Purpose We performed a meta-analysis to examine if children with dyslexia experience deficits in morphological awareness (MA) and if the effect sizes are influenced by different moderators (age, aspect of MA measured, type of MA task, language, modality input, semantic knowledge, and selection criteria). Method We reviewed 40 studies published in English between January 1990 and August 2021, representing a total of 5,018 participants (age range = 5.1–13.9 years). Studies with adults or English language learners were excluded. There were 49 independent samples in the chronological-age (CA) – dyslexia (DYS) comparison and 18 independent samples in the comparison between DYS and reading–level (RL) controls. Results A random-effects model analysis revealed a large effect size for the CA–DYS comparison (g = 1.11) and a non-significant effect size for the RL–DYS comparison (g = −0.08). Age was the only significant moderator of the effect sizes. Conclusion These findings suggest, first, that individuals with dyslexia experience significant difficulties in MA and second, that the effect sizes are as large as those reported for phonological awareness, rapid automatized naming, and orthographic knowledge. The lack of a significant RL-DYS difference indicates that MA is not a core causal feature of dyslexia.
Neural network analysis of the information content in population responses from human periodontal receptors

Understanding of the information processing in some sensory systems is hampered for several reasons. First, some of these systems may depend on several receptor types with different characteristics, and the crucial features of natural stimuli encoded by the receptors are rarely known with certainty. Second, the functional output of sensory processing is often not well defined. The human tooth is endowed with several types of sensory receptors. Among these, the mechanoreceptors located in the periodontal ligaments have been implicated in force encoding during chewing and biting. Individual receptors cannot, however, code unambiguously either the direction or the magnitude of the applied forces. Neuronal responses recorded in single human nerve fibers from periodontal receptors were fed to multi-layered feed-forward networks. The networks were trained with error back-propagation to identify specific features of the force stimuli that evoked the receptor responses. It was demonstrated that population responses in periodontal receptors contain information about both the point of attack and the direction of applied forces. It is concluded that networks may provide a powerful tool to investigate the information content in responses from biological receptor populations. As such, specific hypotheses with respect to information processing may be tested using neural networks also in sensory systems less well understood than, for instance, the visual system.
Resin Matrix Composition on the Performance of Brake Pads Made from Durian Seeds: From Computational Bibliometric Literature Analysis to Experiment

The purpose of this study was to analyze the effect of a resin composition on the performance of brake pads with durian seeds (BDs) as the base material. Experiments were done by attaching saw-milled BD particles to a polymer matrix. Various resin compositions were used for preparing the brake pad, which was then tested (press test, puncture test, and friction test). Physical properties (i.e., particle size, surface roughness, morphology, and density), as well as mechanical properties (ie: hardness, wear rate, and friction coefficient properties), were investigated. Based on observations, the best mechanical properties were found in the highest resin mixture, reaching a compressive strength value of 2.4 MPa. The impact of the homogeneity of the brake pad filler particles is the main reason. The high resin composition causes more cross-links to be formed. This research demonstrates the prospective environmentally friendly and inexpensive brake pads used to replace current products that use hazardous materials.
Do Homicide Perpetrators Have Higher Rates of Delayed-Suicide Than the Other Offenders? Data from a Sample of the Inmate Population in Italy

Homicide-suicide can be defined as homicide followed by the suicide of the perpetrator shortly afterward. In the so-called “homicide-delayed suicide”, homicide and suicide occur but within a wide and not strictly defined timeframe. This study analyzes data concerning the suicide of 667 inmates in Italy between 2002 and 2015, considering homicide perpetrators compared to all offenders. The analyses revealed that inmates who had committed homicide were more likely to commit suicide (71% versus 45%; χ2 = 10.952, p = 0.001) and the odds of suicide increase concerning 1.58 times among homicide perpetrators. The time-to-suicide interval after homicide ranges between 0 to 9.125 days (mean = 1.687,9; SD = 2.303,1). Moreover, the intimate-homicide offenders who committed suicide had a significantly shorter survival time after the offense than did the other non-intimate offenders who died by suicide (t test, t = −3.56, df = 90, p = 0.001). The link between homicide and higher suicide risk in homicide perpetrators should be highlighted because of all the homicide offenders passing through the criminal justice system. Superior knowledge about the path of homicide-delayed suicide will be of particular use to professionals in evaluating and treating homicide inmates.
Future supply of boreal forest ecosystem services is driven by management rather than by climate change

Forests provide a wide variety of ecosystem services (ES) to society. The boreal biome is experiencing the highest rates of warming on the planet and increasing demand for forest products. To foresee how to maximize the adaptation of boreal forests to future warmer conditions and growing demands of forest products, we need a better understanding of the relative importance of forest management and climate change on the supply of ecosystem services. Here, using Finland as a boreal forest case study, we assessed the potential supply of a wide range of ES (timber, bilberry, cowberry, mushrooms, carbon storage, scenic beauty, species habitat availability and deadwood) given seven management regimes and four climate change scenarios. We used the forest simulator SIMO to project forest dynamics for 100 years into the future (2016–2116) and estimate the potential supply of each service using published models. Then, we tested the relative importance of management and climate change as drivers of the future supply of these services using generalized linear mixed models. Our results show that the effects of management on the future supply of these ES were, on average, 11 times higher than the effects of climate change across all services, but greatly differed among them (from 0.53 to 24 times higher for timber and cowberry, respectively). Notably, the importance of these drivers substantially differed among biogeographical zones within the boreal biome. The effects of climate change were 1.6 times higher in northern Finland than in southern Finland, whereas the effects of management were the opposite—they were three times higher in the south compared to the north. We conclude that new guidelines for adapting forests to global change should account for regional differences and the variation in the effects of climate change and management on different forest ES.
THE RELATIONSHIP OF LEADERSHIP STYLE, PSYCHOLOGICAL CAPITAL, AND STAFF PERFORMANCE AMONG ACADEMICS HOLDING ADMINISTRATIVE POST IN PUBLIC HIGHER EDUCATION INSTITUTION IN MALAYSIA: BRIEF REVIEW

Staff leadership especially among academics holding administrative post has long been debated in relation to level of performance. Notably, past studied rarely talked about the relationship of leadership styles and psychological capital in boosting the performance in which this study investigated. Through literature review, the leadership style of academic leaders predicts the performance while their psychological capital determines the impact further. Some insights were excavated from articles in various journal related to variables of study particularly among academia which become the context of this study. Full-Range Leadership theory drove the study to further entice the relationship of the variables. In the end, the study manages to gauge explanation why academic leaders’ performance is differently affected by transformational leadership style as compared to transactional leadership style. The effect, however, can be regulated by the psychological capital of the academic leaders while performing their tasks.
A comparative study of flamelet and finite rate chemistry LES for an axisymmetric dump combustor

Present-day demands on combustion equipment are increasing the need for improved understanding and prediction of turbulent combustion. Large eddy simulation (LES), in which the large-scale flow is resolved on the grid, leaving only the small-scale flow to be modeled, provides a natural framework for combustion simulations, as the transient nature of the flow is resolved. In most situations, however, the flame is thinner than the LES grid, and subgrid modeling is required to also handle the turbulence-chemistry interactions. Here, we examine the predictive capabilities of the flamelet LES models, such as the Flamelet Progress Variable LES (LES-FPV) models, and the finite rate chemistry LES models, such as the LES-Thickened Flame Model (LES-TFM), the partially stirred reactor model (LES-PaSR) and the Eddy Dissipation Concept (LES-EDC) model. These different combustion LES models are used here to study the reacting flow in an axisymmetric dump combustor at a Reynolds number of 55,800, the Damköhler number of 167 and a Karlowitz number of 0.15, placing the flame in the corrugated flame regime. The computational results are compared to experimental data of velocity and temperature to examine predictive capabilities of the different models.
Exploring engagement in value creation – a multi-stakeholder perspective in the museum context

ABSTRACT This study builds on the multi-stakeholder perspective to explore the nature of stakeholder engagement across key areas of value creation in the museum context. The empirical research followed a multiple case study design, based on three cases selected in accordance with a maximum variation strategy. The investigation involved a qualitative content analysis of primary and secondary sources. The findings reveal a context-bound perception of stakeholders and varying conditions for their engagement in the value-creation process. The study provides a strategic perspective for a comprehensive, multi-layered review of the stakeholder engagement across different activity areas, and thus informs the formulation of strategies to improve the task-evidenced multi-voice narration within the scope of museum activities.
Characterization of Acinetobacter baumannii Isolated from Raw Milk

Simple Summary Although milk is a significant nutrient source for humans, it can be associated with various bacterial infections. Acinetobacter species can be found in milk due to residual water in milking machines, milk pipelines or coolers, the inadequate cleaning of dairy equipment, tainted udders and teats, the improper transport and storage of milk and the inadequate cleaning of dairy equipment, causing diseases. Most members of the genus Acinetobacter are opportunistic commensals with limited virulence and are clinically insignificant. However, Acinetobacter infections have recently increased in severity due to the frequent use of mechanical breathing devices, venous catheters and antibiotics, and they pose significant public health concerns. Acinetobacter baumannii (A. baumannii) is an opportunistic pathogen that causes various nosocomial infections. Studies using animal models and clinical data demonstrated that A. baumannii is a highly virulent species. It is a significant pathogen, especially due to the emergence of multidrug-resistant (MDR) strains and their association with many nosocomial infections and community-acquired infections. Abstract Acinetobacter baumannii (A. baumannii) is an opportunistic pathogen associated with nosocomial infections. In this study, 100 raw milk samples were collected from Qena, Egypt, and subjected to conventional and molecular assays to determine the presence of A. baumannii and investigate their antimicrobial resistance and biofilm formation. Our findings revealed that, among the 100 samples, Acinetobacter spp. were found in 13 samples based on CHROM agar results. We further characterized them using rpoB and 16S-23SrRNA sequencing and gyrB multiplex PCR analysis and confirmed that 9 out of the 13 Acinetobacter spp. isolates were A. baumannii and 4 were other species. The A. baumannii isolates were resistant to β-lactam drugs, including cefotaxime (44%), ampicillin-sulbactam and levofloxacin (33.3% for each), imipenem, meropenem and aztreonam (22.2% for each). We observed different antimicrobial resistance patterns, with a multi-antibiotic resistant (MAR) index ranging from 0.2 to 0.3. According to the PCR results, blaOXA-51 and blaOXA-23 genes were amplified in 100% and 55.5% of the A. baumannii isolates, respectively, while the blaOXA-58 gene was not amplified. Furthermore, the metallo-β-lactamases (MBL) genes blaIMP and blaNDM were found in 11.1% and 22.2% of isolates, respectively, while blaVIM was not amplified. Additionally, eight A. baumannii isolates (88.8%) produced black-colored colonies on Congo red agar, demonstrating their biofilm production capacity. These results showed that, besides other foodborne pathogens, raw milk should also be examined for A. baumannii, which could be a public health concern.
Corneal Endothelial Cell Loss after Ciliary Sulcus Placement of Ahmed Glaucoma Valve in Patients with Noninfectious Uveitic Glaucoma

This study was performed to investigate the corneal endothelial cell density (CECD) reduction and treatment efficacy in patients with uveitic glaucoma treated by the ciliary sulcus placement of the Ahmed glaucoma valve (AGV). This retrospective study included 27 eyes of 27 patients with noninfectious uveitis who underwent the sulcus placement of the AGV. Each patient underwent a clinical assessment including a CECD measurement before surgery and at 3, 6, 9, and 12 months after surgery. The mean CECD was 2431.4 ± 367.5 cells/mm2 at preoperative baseline and 2360.5 ± 391.3 cells/mm2 at 12 months (p = 0.074), with a reduction rate of 2.73 ± 9.29%. The CECD reduction was significantly greater in patients with unilateral uveitis than that with bilateral uveitis. The rate of successful intraocular pressure control was 88% at 12 months, and the number of intraocular pressure-lowering medications was significantly reduced (p < 0.001). The current study showed that the implantation of an Ahmed tube into the ciliary sulcus provided stable intraocular pressure control in patients with glaucoma secondary to noninfectious uveitis, and CECD reduction was moderate in most patients at 12 months.