Miracle-dz/UniFAR-FTUs huggingface dataset:
Predicting consumer adoption of branded subscription services: A prospect theory perspective

Drivers of and barriers to consumer adoption of product-service systems (PSS) deviating strongly from the current consumption paradigm remain unidentified. This study quantitatively investigates purchase intentions of a hypothetical branded fashion subscription service. This service features use- and result-oriented PSS attributes in a lack of ownership, newness, and choice, and is investigated from a Prospect Theory perspective using a mixed method design combining an experiment with a survey (n = 524). Results show that even if the PSS provider is highly trusted by consumers, this only mitigates some of the worries consumers have about wearing used clothing and being held financially liable for product damage. The only driver of adoption is the opportunity to save money. Additional specific product information is also explored and shows that PSS providers have scope to change consumer perceptions. Overall, it appears that fashion ownership and choice are lesser issues than the literature suggests, although financial incentives are important. Furthermore, having a trusted brand allows a potential PSS provider to alleviate only some of the concerns consumers have. The contribution of this paper lies in its empirical findings as well as in its validation of Prospect Theory as a valid approach to enquiring into reasons for or against consumer adoption of complex PSS such as subscription services.
Black holes and deconfinement in gauge theories

June Nahmgoong Department of Physics and Astronomy The Graduate School Seoul National University In this thesis, we study the black holes from the deconfinement of the gauge theories based on the AdS/CFT correspondence. We show that the superconformal index of N = 4 Yang-Mills theory can deconfine, and exhibits macroscopic entropy at large N . In the Cardy limit where the angular momenta are large, the index precisely captures the known supersymmetric AdS5 black holes. We further compute the upper bound of the deconfinement ‘temperature’ which indicates the existence of new black holes. We extend our analysis to 6d SCFTs. In the Cardy limit, we show that the leading free energy, as well as a few subleading corrections, can be computed from the ’t Hooft anomalies. Our large N free energy accounts for the entropy of supersymmetric AdS7 black holes. We also compute the free energy of (2,0) theories on R4 × T 2 and find N3 scaling behavior when various temperature-like parameters are large. For AdS4 and AdS6, we find the entropy functions that reproduce the entropies and the chemical potentials of known black hole solutions.
Bowel Cleansing by Polyethylene Glycol preparation in Acute Pediatric Poisoning: Report Of Two Cases

Whole bowel irrigation is a recently hopeful advancement in detoxification of some special poisons. Polyethylene glycol (PEG), a non-absorbable iso-osmotic laxative preparation, is the substance that can be used with the least rate of complications and causes complete evacuation of gastrointestinal tract in 4-6 hours. PEG preparation has been tolerated well in adults, children and pregnant women, but it seems that its use is mostly disregarded in the management of pediatric poisoning due to poor information about its benefits. Considering several benefits of it and personal experience of the author in regard to the efficacy of this substance in management of pediatric poisoning, here two cases of acute poisoning (swallowing two packets of heroine and a lizard) managed by 40ml/kg/h of PEG are presented. Not only there is no report about any side effect after using this substance in high dozes, but also there are some reports of the excretion of the ingested things in 4-6 hours after the administration of this preparation. The author, based on her own successful experience, suggests polyethylene glycol in the management of acute pediatric poisoning when there seems to be no other way except surgery.
Optimized synthesis of isocyanate microcapsules for self-healing application in epoxy composites

Microcapsules containing isophorone diisocyanate were fabricated in oil-in-water emulsion. The emulsification effect of different emulsifiers during the capsule synthesis was systematically investigated by optical microscope. Three kinds of shell materials were discussed to obtain the high core content, smooth-surfaced, and robust capsule by scanning electronic microscope and Fourier transform infrared spectroscopy. Self-healing performance of corresponding self-healing epoxy composites was fully evaluated by accelerated corrosion test and mechanical test. The results demonstrated that high core content and smooth-surfaced capsules with dense composite shell could be synthesized in polyvinyl alcohol emulsion, and the core content of the optimized capsules was determined as 71.3–84.6 wt% at the capsule size from 35 µm to 154 µm. In addition, the optimized capsules had good processing properties and the corresponding self-healing epoxy composites exhibited excellent core release and self-healing performance.
Computational modelling of TRIANGULAR sub-boundary-layer vortex generators

Vortex generators (VGs) are used increasingly more by the wind turbine manufacture industry as flow control devices to improve rotor blade aerodynamic performance. The VG height is usually designed with equal thickness of the local boundary layer at the VG position. Nevertheless, these conventional VGs may produce excess residual drag in some applications. The so-called sub boundary layer VGs can provide enough momentum transfer over a region several times their own height for effective flow-separation control with much lower drag. The main objective is to investigate how well the simulations can reproduce the physics of the flow of the primary vortex generated by a triangular VG mounted on a flat plate with negligible pressure gradient with the angle of attack of the vane to the oncoming flow β= 18. Three different device heights H= 5mm, H1= 6,25mm, H2= 4,16mm have been studied and compared both qualitatively and quantitatively. To that end, computational simulations have been carried out using RANS method and at Reynolds number Re = 2600 based on the boundary layer momentum thickness θ= 2.4 mm at the VG position. The computational results show good agreement with the experimental data available in AVATAR project.
Synthesis of 5,8-Diaryl-5,7,8,9-Tetrahydropyrimido[5,4-e]Tetrazolo[1,5-a]Pyrimidin-6(4H)-One Derivatives Catalyzed by MNPs@SiO2-Pr-AP as a New Efficient Reusable Nanomagnetic Catalyst

Abstract Some novel 5,8-diaryl-5,7,8,9-tetrahydropyrimido[5,4-e]tetrazolo[1,5-a]pyrimidin-6(4H)-one derivatives are prepared via one-pot reaction of aromatic aldehydes, 2-aminotetrazole and cyanoacetamide using two different types of catalytic systems including nano-magnetic catalyst supported with functionalized 4-amino-pyridine silica (MNPs@SiO2-Pr-AP) and NEt3. The highlighting points of using MNPs@SiO2-Pr-AP are easy purification, reusability of the catalyst, good yields of products with short time reactions compared with NEt3.
The Influence of Classroom Flipped Model and Heuristic Vee on Students' Understanding of Mathematical Concepts

We already know that, there are many learning models that are used to improve the ability to understand mathematical concepts. In this study, researchers will use two learning models that have been previously studied. But this study is different from previous studies, this study aims to find a better model in improving the ability to understand students' mathematical concepts through test results by applying the flipped classroom and heuristic vee models. The method used in this study is quasi-experimental (quasi-experimental) and testing using the T and N-Gain test. Based on the results of the data analysis conducted, it can be concluded that increasing the ability to understand mathematical concepts of students who use the flipped classroom learning model is far better than vee heuristics.
Mechanistic Studies of Nickel(II)-Catalyzed Direct Alcoholysis of 8-Aminoquinoline Amides

Abstract – This paper describes the mechanistic aspects of nickel(II)-catalyzed direct alcoholysis of 8-aminoquinoline amides. Kinetic experiments suggested that the nickel(II) catalyst existed in an oligomeric form in the resting state, and the 8-aminoquinoline generated after cleavage coordinated to the nickel(II) catalyst to decelerate the reaction. In addition, density functional theory calculations revealed that the reactions proceeded via the intermediate with N,N,O-tridentate coordination of 8-aminoquinoline amides to the nickel(II) metal center, and that the alcoholysis reaction did not involve deprotonation of the N–H bond of 8-aminoquinoline amides, in contrast to the proposed mechanism for C–H bond functionalization reactions of 8-aminoquinoline amides.
A bacteriological study of septicemia in Hilla city

Septicemia is a serious bloodstream infection; it can quickly become lifethreatening. The current study aimed to isolate and identify the causative agents of septicemia cases with reference to the antibiogram test. 52 blood samples were collected from a number of incomings and thosewho lie in Hilla general hospital. After incubation and culturing on suitablemedia, 30 samples gave growth of one or two species of bacteria. A total of 33 bacterial isolates were obtained, most of them (16 isolates) were belong to coagulase-negative Staphylococcus spp. , followed by E. coli (6 isolates), Pseudomonas sp. (5 isolates), Streptococcus sp. (2 isolates), and one isolate for each of Staphylococcus aureus, Streptococcus pneumonia, Acinetobacter sp. , and Listeria monocytogenes. When antibiotics sensitivity test was accomplished, most Staphylococcus spp. were sensitive for daptomycin and had high resistance to both of vancomycin and clindamycin, whereas Staphylococcus aureus was sensitive for most the used antibiotics. Half of E. coli isolates were sensitive, while the second half were resistant to the used antibiotics. Imipenem inhibited the growth of all Pseudomonas isolates, whereas 80% of them were resistant to amikacin. The epidemiology of bacteremia is altering with the aging of the population, shifts in healthcare, and progress in medicine, such as increased use of immunosuppressive treatment, intravascular devices, and invasive procedures.
Understanding and Optimizing Conjunctive Predicates Under Memory-Efficient Storage Layouts

Database queries can contain multiple predicates. The optimization of conjunctive predicates is still vital to the overall performance of analytic data processing tasks. Prior work proposes several memory-efficient storage layouts, e.g., BitWeaving and ByteSlice, to significantly accelerate predicate evaluation, as circuit-level intra-cycle parallelism available in modern CPUs can be exploited such that the total number of instructions can be dramatically reduced. However, the performance potential of conjunctive predicates has not been harvested yet under such storage layouts as there is no accurate cost model to provide necessary insights that guide the optimization process. In this paper, we propose a hybrid empirical/analytical cost model (Understanding) to unveil the performance characteristics of such storage layouts when applying to predicate evaluation. Our cost model takes into account effect of non-linear factors, e.g., cache miss and branch misprediction, and easily applies to different CPUs. The main finding from our cost model is to distinguish high-cost instruction (which suffers from cache miss and/or branch misprediction) from low-cost instruction (which enjoys cache hit and correct branch prediction) in the context of predicate evaluation under these storage layouts. Guided by such a finding, we propose a simple execution scheme Hebe (Optimizing), which is order-oblivious while maintaining high performance. Hebe is attractive to the query optimizer (QO), as the QO does not need to go through a sampling process to decide the optimal evaluation order in advance. The intuition behind Hebe is to significantly reduce the number of high-cost instructions while keeping low-cost instructions unchanged. Our finding from Hebe sheds light on the importance of accurate cost model that guide us to derive an efficient execution scheme for query processing on modern CPUs.
Virtual Role-play: Middle School Educators Addressing Student Mental Health

Objectives: In this study, we examined the impact of a virtual training program, Kognito At-Risk role-play simulation, on the mental health and suicide prevention gatekeeping skills of middle school educators. Methods: The validated Gatekeeper Behavior Scale was administered to 33,703 participants at baseline, post-training and follow-up. Helping behaviors were measured at baseline and follow-up. We also assessed preparedness, likelihood, and self-efficacy concerning leading conversations with youth about bullying and suicide. Results: Participants showed positive change from pre-test to 3-month follow-up on variables of interest. Hotelling's T2 test indicated that, as a set, gatekeeper attitudes of preparedness, likelihood, and self-efficacy differed between pre-test and post-test, F (3, 33,512) = 16,283, p < . 001, η2 partial = . 59. Number of students about whom gatekeepers were concerned (p < .05), number of students approached to discuss concerns (p < .001), and number of students referred to support services (p <.001) increased significantly with training. Conclusions: The At-Risk simulation shows promise in detecting and referring students in psychological distress, including risk of suicide. Fidelity is maintained because the program cannot be altered. At-Risk can be an effective and affordable way to provide suicide prevention training for those working in schools.
A Non-invasive, Easy to Use Medical Device for Arterial Stiffness

Arterial stiffness is classified as a useful marker of early vascular damaging and a predictor of cardiovascular events in young people. We aimed to present the efficacy of a non invasive device in cardiovascular diseases prevention. Using the Arteriograph device, it was performed a cross sectional, non-invasive study in 313 healthy students. Non-invasive screening of apparently healthy young subjects with high WTH ratio values may be beneficial for detecting early, asymptomatic arterial atherosclerosis.
Electrically small circularly polarized antenna using vialess CRLH‐TL and fractals for L‐band mobile satellite applications

This paper explains the design and development of an electrically small (ka = 0.59) circularly polarized (CP) antenna based on vialess composite right/left‐handed (CRLH) transmission line (TL) and third‐iterative fractals (TIF) applicable for 1.637 GHz L‐band mobile satellite applications. The idea behind the CP antenna originates from the combination of curved meander line inductor on the top side of the substrate back coupled with TIF in backside of the substrate. The loading of TIF provides an increased level of cross polarization by adjusting the dimensions of TIF which is almost equal to the main polarization level of original CRLH‐TL loaded antenna on the top side of the substrate. Due to this, the antenna can generate two orthogonally polarized modes for supporting CP radiation with excellent miniaturization and improved gain. The overall dimensions of the proposed antenna are 22 × 27 × 1.27 mm with radiating element size including the ground plane are 0. 11λ0 × 0. 14λ0 × 0.006λ0 at 1.635 GHz. The proposed antenna can provide excellent miniaturization of 68.51% compared with the conventional monopole antenna with improved radiation performance. The antenna provides an acceptable impedance bandwidth of 0.73%, improved gain of 1.79 dBi without using complex vias, excellent miniaturization, and low profile (0.006 λ0) compared to existing similar type of antennas in the literature.
Mobility Screening for the Core, Part 3: Implications for Athletic Low Back Pain

ATHLETIC THERAPY TODAY ATHLETIC THERAPY TODAY JANUARY 2005  37 N PARTS 1 AND 2 of this series we discussed the importance of assessing and treating mobility deficits of the core. The emphasis was on normalizing functional movements before prescribing a traditional corestrengthening program. Recent research that has focused on neuromuscular impairments and movement dysfunction in those with low back pain has exposed links between low back pain and impairments in the muscles of the local system, namely the lumbar multifidus and transversus abdominis, as well as movement deficits shown to be associated with lumbosacral pain. The aim of this column is to introduce the concept of local stabilization, its role in low back pain, and the integration of core-mobility testing and training into the treatment and prevention of nonspecific low back pain in athletes.
Towards Real Time Characterization of Grain Growth from the Melt

Towards Real Time Characterization of Grain Growth from the Melt Christopher James Wright Single crystal materials have unique properties which are endowed by their long ranging atomic order. Growing these crystalline materials can be difficult, as entropy favors disordered grains. The optical floating zone furnace provides an efficient way to make novel single crystal materials, enabling the study of crystals with complex chemical makeup which other techniques would not be able to provide. However, the growth mechanisms of these crystals is poorly understood, leaving the process of making them prone to trial and error and limiting its application in the broader research community. This work aims to understand the microstructural dynamics of floating zone growth using x-ray scattering techniques. These techniques include x-ray diffraction tomography and two dimensional crystal mapping. One focus of this work is building the computational infrastructure to process the large stream of heterogeneous data which results from these techniques. Additionally, this work includes computational and experimental commissioning of the x-ray diffraction tomography technique, helping to understand the advantages and limitations of the current approaches. These pieces of infrastructure are then used to characterize the growth of Rutile crystals via a float zone furnace. Particular attention is paid to the competition amongst the grains, and how certain grains are selected from the plethora which are created at the beginning of the growth.
Removal of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) from water by carbonaceous nanomaterials: A review

Abstract Per- and polyfluoroalkyl substances (PFASs) are commonly used in many consumer and industrial products. However, their resulting widespread release into aqueous environments and their potential toxicities to organisms have raised significant environmental concern. Among the various approaches to the removal of PFAS contaminants, adsorption has proven to be highly effective, especially when carbonaceous nanomaterials (CNMs) are used as the adsorbent. Nonetheless, the interfacial adsorption of PFASs on CNMs is affected by many factors. In this work, the adsorption behaviors of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), two highly representative PFASs, on different CNMs are reviewed. We also examine the mechanisms of PFOA and PFOS adsorption on CNMs, including electrostatic and hydrophobic interactions, ligand exchange and hydrogen bonding. Due to the significant influence of hydrophobic interactions on adsorption, CNMs rich in oxygen-containing functional groups will result in weaker PFAS adsorption than achieved using pristine materials. The important contribution of nanobubbles to hydrophobic interactions is considered herein. Overall, this work contributes to a better understanding of the adsorption affinity of PFASs on CNMs in water environments. Moreover, it provides the systematic theoretical support that is needed for the more effective use of CNMs in the removal of PFASs from aqueous systems. Graphical Abstract
Seismic Evidence of Magmatic Rifting in the Offshore Taupo Volcanic Zone, New Zealand

Relationships between extensional tectonics and magmatism are ubiquitous in continental rifts and oceanic spreading centers. Yet few studies document interactions between extensional faults and mantle melts in volcanic arcs. We constrain the crustal structure of the extensional offshore Taupo Volcanic Zone (TVZ) from a marine multichannel and wide‐angle seismic experiment. The TVZ crust thins from >26 km to ∼18–19 km across ∼50 km in the Bay of Plenty. Elevated P wave velocities in the lower crust indicate mafic additions. Magmatic sills between 4‐ and 15‐km depth lie beneath listric normal faults in a ∼40‐km‐wide active rift zone. P wave velocities in the middle and upper crust along the arc front are ∼0.3–0.5 km/s slower than in the adjacent crust, indicating a possible thermal anomaly imparted by heat from magmatic intrusions. We propose that rifting in the offshore TVZ is partially compensated by intrusions and assisted by thermal weakening of the lithosphere.
Highlighting action and environmental component interactions using a network theory approach

ABSTRACT In Environmental Impact Assessment (EIA), the either positive or negative impacts that specific N project actions might generate on a number M of environmental components are typically summarized in the form of Interaction Matrix (IM). This is an NxM tabular array containing numbers whose sign and magnitude represent the type and severity of impacts. Current approaches to interpret the IM mainly remain on a qualitative level which are limiting its practical usage. In this work, we build on previous works and adopt network theory as a methodology to represent the IM in a graphical form, and to obtain quantitative information that can be inserted in the EIA. The IM corresponds to a bipartite network linking actions and environmental components. The associated network is useful to perform quantitative statistical analyses, which summarise the complexity of cross and mutual interconnections between actions and environmental components under simple and understandable metrics. We show some results from EIAs related to water projects and other case studies, whose different complexity helps to appreciate the general applicability of the method.