Miracle-dz/UniFAR-FTUs huggingface dataset:
Synergistic Enhancement of Near-Infrared Emission in CsPbCl3 Host via Co-Doping with Yb3+ and Nd3+ for Perovskite Light Emitting Diodes

Perovskite nanocrystals (PeNCs) have emerged as a promising class of luminescent materials offering size and composition-tunable luminescence with high efficiency and color purity in the visible range. PeNCs doped with Yb3+ ions, known for their near-infrared (NIR) emission properties, have gained significant attention due to their potential applications. However, these materials still face challenges with weak NIR electroluminescence (EL) emission and low external quantum efficiency (EQE), primarily due to undesired resonance energy transfer (RET) occurring between the host and Yb3+ ions, which adversely affects their emission efficiency and device performance. Herein, we report the synergistic enhancement of NIR emission in a CsPbCl3 host through co-doping with Yb3+/Nd3+ ions for perovskite LEDs (PeLEDs). The co-doping of Yb3+/Nd3+ ions in a CsPbCl3 host resulted in enhanced NIR emission above 1000 nm, which is highly desirable for NIR optoelectronic applications. This cooperative energy transfer between Yb3+ and Nd3+ can enhance the overall efficiency of energy conversion. Furthermore, the PeLEDs incorporating the co-doped CsPbCl3/Yb3+/Nd3+ PeNCs as an emitting layer exhibited significantly enhanced NIR EL compared to the single doped PeLEDs. The optimized co-doped PeLEDs showed improved device performance, including increased EQE of 6.2% at 1035 nm wavelength and low turn-on voltage. Our findings highlight the potential of co-doping with Yb3+ and Nd3+ ions as a strategy for achieving synergistic enhancement of NIR emission in CsPbCl3 perovskite materials, which could pave the way for the development of highly efficient perovskite LEDs for NIR optoelectronic applications.
Monoterpene emission from ponderosa pine

We explore the variability in monoterpene emissions from ponderosa pine beyond that which can be explained by temperature alone. Specifically, we examine the roles that photosynthesis and needle monoterpene concentrations play in controlling emissions. We measure monoterpene concentrations and emissions, photosynthesis, temperature, and light availability in the late spring and late summer in a ponderosa pine forest in central Oregon. We use a combination of measurements from cuvettes and Teflon bag enclosures to show that photosynthesis is not correlated with emissions in the short term. We also show that needle monoterpene concentrations are highly correlated with emissions for two compounds, α-pinene and β-pinene, but that Δ-carene concentrations are not correlated with emissions. We suggest that direct effects of light and photosynthesis do not need to be included in emission algorithms. Our results indicate that the role of needle concentration bears further investigation; our results for α-pinene and β-pinene are explainable by a Raoult's law relationship, but we cannot yet explain the cause of our results with Δ-carene.
A portable earth‐drill system for permafrost studies

This technical note presents a light drill specially designed for coring in permafrost. The drill was improved over several years at Université Laval's Centre d'études nordiques. More efficient than the conventional CRREL coring kit, the equipment allows total‐length recovery of cores 10 cm in diameter nearly without alteration, and works in most kinds of frozen soils. Drilling is possible to 7 m using a two to three‐person operating crew. Copyright © 2005 John Wiley & Sons, Ltd.
Can you do all in one professional label? Complementarity, substitution and independence effects in academic life

The diffusion of evaluation systems based on research excellence has been confronting scholars with the dilemma of how to combine the different activities and roles characterizing the academic profession. Besides research, other types of knowledge transfer and academic citizenship, i.e., the service activities and roles carried out on behalf of the university within and outside organizational boundaries, are in fact cornerstones of universities’ functioning that allow for their thriving and need to be valued. This study investigates the complementarity, substitution, and independence effects between the various types of knowledge transfer and academic citizenship in a sample of 752 Italian academics working in business schools. We collected data combining different sources including CVs, publication records, and national datasets. Multivariate path analysis was employed to measure covariances between knowledge transfer and academic citizenship. We contribute to the debate on academic citizenship by showing that public and discipline-based service are complementary to knowledge transfer activities, while institutional service is independent from knowledge transfer. Remarkably, journal papers are research outcomes complementary to most academic activities, and the same holds true for dissemination at workshops and conferences. Running counter dominant rhetoric, this study testifies to the likelihood of faculty being “all-round” professionals. We disclose that activities and roles are influenced by academics’ previous pathways and research grants and discuss the need to value academic citizenship in performance measurement systems.
A study of a CASP storm: Analysis of radar data

Abstract The morphology and time evolution of a winter storm is studied using radar data taken during the Canadian Atlantic Storms Program (CASP). The vertical motions that generate the snow are derived from reflectivity measurements. The study reveals a banded structure in the precipitation pattern with ascending and descending air associated with the bands. Vertical velocities averaged over the radar‐covered area reach values close to 1 m s‐1 . The region of large‐scale uplifting moves horizontally at about half the horizontal air velocity. A persistent precipitation pattern results from the continuously renewed air within the uplifting region.
Tectono‐stratigraphic history of the southern Junggar basin: seismic profiling evidences

The modern Tianshan is an active intracontinental range in central Asia. Its initial timing is poorly known and still hotly debated. As the subsidence of foreland basins is intrinsically coupled with the uplift of orogenic wedges, the foreland sedimentary records may accurately constrain the Tianshan uplifting history. To better address the question, we analyse a seismic profile across the southern Junggar foreland basin to decipher its tectonic and stratigraphic history. Four structural layers can be identified in an ascending order: the Permian – Lower Jurassic transtension‐related layer, the Jurassic – Cretaceous thermal‐subsistence layer, the Palaeogene layer and the Miocene – Quaternary foreland sedimentary layer. The oldest sedimentary sequence in the foreland succession is of the Shawan Formation deposited at ~24 Ma based on magnetostratigraphic constraints. This indicates that foreland deformation in the northern Tianshan and uplifting of the modern Tianshan probably initiated at the beginning of the Miocene.
Diapycnal Transport and Mixing Efficiency in Stratified Boundary Layers near Sloping Topography

Abstract The interaction of shear, stratification, and turbulence in boundary layers on sloping topography is investigated with the help of an idealized theoretical model, assuming uniform bottom slope and homogeneity in the upslope direction. It is shown theoretically that the irreversible vertical buoyancy flux generated in the boundary layer is directly proportional to the molecular destruction rate of small-scale buoyancy variance, which can be inferred, for example, from microstructure observations. Dimensional analysis of the equations shows that, for harmonic boundary layer forcing and no rotation, the problem is governed by three nondimensional parameters (slope angle, roughness number, and ratio of forcing and buoyancy frequencies). Solution of the equations with a second-moment closure model for the turbulent fluxes reveals the periodic generation of gravitationally unstable boundary layers during upslope flow, consistent with available observations. Investigation of the nondimensional parameter.
The Sisyphean Climb Quantifying Robotic Process Automation with Agile Methodologies

This study explores the integral stages involved in the implementation of Robotic Process Au-tomation within organizations, drawing parallels with established practices in software engineering, particularly the Agile methodology. Much like Sisyphus eternally pushing his boulder uphill, the continuous nature of business development requires ongoing effort and constant adaptation. However, unlike Sisyphus, businesses have the opportunity to strategically leverage tools like Robotic Process Automation to make the climb more manageable. This study looks at a handful of organisations in the Uppsala region, using interviews, alongside a literature review on related topics such as Robotic Process Automation, Software engineering methodology’s, particularly Agile, aswell as classically used evaluation strategies, such as Return of investment, Cost benefit analysis, and Multi-criteria analysis, to identify three instrumental stages, Identification, Prioritization, and Evaluation, in the development process of Robotic process automation. The report also highlights the significant influence of an organization’s maturity in the usage of Robotic Process Automation on the success of its automation projects. These findings underlines the need for comprehensive awareness and understanding of Robotic Process Automation across various organizational departments, similar to the principle of stakeholder engagement in Agile development. The prioritization of processes for automation is shown to be guided by factors such as the potential business impact, feasibility, and expected long-term benefits. This observation aligns with Agile’s emphasis on efficient resource allocation and alignment with broader business objectives. However, in the later stage of RPA development referred to in this report as the ”evaluation stage”, the study uncovered a low level of quantitative data collection following implementation, with a greater focus on qualitative benefits. These findings suggest potential areas for future research, including the development of structured prioritization frameworks and methods for collecting qualitative data. The study concludes by suggesting that methodologies from software development, such as Agile, could be effectively applied to improve the implementation of Robotic Process Automation.
[2.6] Information Visualization: Designing for Usability, User Experience, Sustainability and Inclusion

This book chapter focuses on designing eﬀective and user-friendly information visualizations that enhance usability, user experience, and inclusivity. It examines core design concepts, including taking into account the intended audience, the complexity of the data, and the application environment. The chapter addresses how interaction can improve user experience and places a strong emphasis on the value of user testing and feedback methods in the design process. Ad-ditionally, it emphasizes the diﬃculties and possibilities of designing for inclusion, taking into account issues like accessibility, diversity, and cultural sensitivity. In summary, this chapter oﬀers helpful advice and insights for information visualization designers, researchers, and practitioners who want to produce attractive, eﬃcient designs that satisfy the requirements and expectations of a wide range of users
Design and Deployment of a Remote Robust Sensor Network: Experiences from an Outdoor Water Quality Monitoring Network

This paper investigates a wireless sensor network deployment - monitoring water quality, e.g. salinity and the level of the underground water table - in a remote tropical area of northern Australia. Our goal is to collect real time water quality measurements together with the amount of water being pumped out in the area, and investigate the impacts of current irrigation practice on the environments, in particular underground water salination. This is a challenging task featuring wide geographic area coverage (mean transmission range between nodes is more than 800 meters), highly variable radio propagations, high end-to-end packet delivery rate requirements, and hostile deployment environments. We have designed, implemented and deployed a sensor network system, which has been collecting water quality and flow measurements, e.g., water flow rate and water flow ticks for over one month. The preliminary results show that sensor networks are a promising solution to deploying a sustainable irrigation system, e.g., maximizing the amount of water pumped out from an area with minimum impact on water quality.
What to Study and When: A Dynamic Roy Model of Specialization

This paper generalizes the canonical model of human capital accumulation through schooling to endogenize the process of academic specialization. It provides the solu-tion to a class of dynamic investment problems with switching and stopping under sequential uncertainty. Under mild assumptions, we show that the model’s optimal policy has a particularly simple form that can be reduced to the comparison of independent indices. The optimal policy implies that schooling should begin with a period of general education, common to all students, followed by a period of gradual academic specialization before graduation. At the microeconomic level, it is consistent with the dynamics of student course taking observed in the data and the outcomes of educational interventions studied in the literature. At the macroeconomic level, its predictions are consistent with models of how education should adapt to changes in the speed and scope of technological change in labor markets
The ABCs (and Ds) of Class I Terpene Cyclase (  C), Trans-Head-to-Tail (  HT) and Head-to-Head (  HH) Prenyltransferase Structures and Mechanisms of Action

: We report the structures of the terpene cyclases Santalum album L. sesquisabinene synthases 1 and 2 and of san-talene synthase, in apo forms, and with the sesquisabinene synthases, bound to either farnesyl diphosphate (FPP), farnesyl S-thiolo-diphosphate, FPP containing a POP bridging O-to-CCl 2 substitution, or to sabinene, leading to a sequential mechanism for substrate binding and catalysis. We trapped early pre-catalytic inactive open forms that show how ligands initially bind to the apo-proteins, then when the pocket closes, catalysis can proceed. We also show that there are strong structural similarities between the most highly conserved residues in class I cyclases and those in head-to-tail (  HT) trans-prenyl transferases—outside the well-known DDXXD-like and NSE/DTE-like domains. In the  HT prenyltransferases there is a highly conserved Thr>Gln>Asp>Tyr motif and in the cyclases, a similar Thr>Arg>Asp>Tyr domain, these residues forming very similar, extended H-bond networks (rmsd ~1.4 Å) that are involved in catalysis, leading to the proposal that there are 3 key domains in both the cyclases and the  HT prenyltrans-ferases: The AC-domain that binds MgA and MgC; the B domain that binds MgB and leads to pocket closure, ionization, and condensation or cyclization; and the D-domain H-bond network, involved in H + elimination. In  HH prenyltransferases the overall folds and MgABC motifs are similar to those found in the cyclase and  HT proteins, but the full Thr>Arg/Gln>Asp>Tyr domain is absent and instead there are Tyr/Asp or Tyr/Glu residues that bind to MgC and are highly conserved. Overall, the results are of general interest since they show unexpected similarities between the enzymes that produce the most diverse molecules on Earth:  HT and  HH prenyltransferases, and terpenoid cyclases.
Estimation of Gaussian Mixture Networks

Clustering is one of the most important topics in unsupervised learning. Generative models solve the problem of clustering by fitting to the distribution of the data. More flexible models allow better fitting to distributions, thus estimating better clusters. At the same time, overly unconstrained models often are prone to overfitting and require to be restricted with certain assumptions. In this work we propose a highly flexible Gaussian Mixture Network model and discuss fitting strategies to avoid overfitting of the model. We show improved performance compared to other mixture models on several real-world datasets. We provide the implementation in Python 1 , 2 .
Imaging of Hyperacute Ischemic Stroke at High-b-Value Diffusion-Weighted MR

BACKGROUND AND PURPOSE: Diffusion-weighted (DW) imaging at b (cid:1) 2000 s/mm 2 offers theoretical advantages over DW imaging at b (cid:1) 1000 s/mm 2 for detection of hyperacute ischemic stroke. The purpose of this study was to determine whether b (cid:1) 2000 images are better than b (cid:1) 1000 images for detecting and estimating the extent of diffusion change within 6 hours after stroke onset. METHODS: We compared DW images obtained with a b value of 1000 s/mm 2 (TR/TE/NEX, 7500/71/1) with those obtained with a b value of 2000 s/mm 2 (TR/TE/NEX, 7500/83/2) in 94 patients examined within 6 hours of clinically suspicious hyperacute ischemic stroke (57 men, 37 women; mean age (cid:2) SD, 62 years (cid:2) 8; age range, 47–80 years; mean time interval (cid:2) SD, 206 (cid:2) 90 min). Three observers performed qualitative analysis of DW images and reached a consensus about lesion conspicuity, lesion extent, and image artifact. In the quantitative analysis of 34 patients with lesions in the territory of the middle cerebral artery, the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and volume of ischemic lesion were measured and findings of the b (cid:1) 1000 and b (cid:1) 2000 images were compared. RESULTS: The sensitivity and specificity of b (cid:1) 1000 and b (cid:1) 2000 images were calculated as 94% (80/85)/ 100% (9/9) and 98% (83/85)/ 100% (9/9), respectively, relative to the presence or absence of infarction on the follow-up T2-weighted images. In three patients, hyperintense lesions were depicted only on b (cid:1)
Lightning at "The Master's": An Evaluation of April Thunderstorms in and Near the Augusta National Golf Club

April lightning production in Richmond County, Georgia, from 1995 to 2003 is considered with regard to the associated risk to golfers and spectators at the Master's Golf Tournament and courses throughout the county. An examination of the April lightning climatology of Georgia, focusing on Richmond County, reveals a minimum in lightning activity during the time of the tournament (the first full week of April). A discriminant analysis of Richmond County lightning production utilizes several meteorological variables in order to discern between three categories of April lightning days: little or no lightning activity, minimal lightning activity, and high lightning activity. The analysis distinguishes relatively well between the categories with only 13.5% of the events misclassified. A composite regional analysis of the three lightning categories illustrates the environmental differences between these events. Although the little or no lightning and high lightning categories are somewhat similar environmentally, the intensity of features separates these events and allows for interpretation. The statistical and synoptic analyses together emphasize the importance of low-level instability and frontal proximity and intensity in enhancing lightning production in thunderstorms during April in and surrounding Richmond County. A multitude of meteorological conditions can lead to thunderstorm development. Localized studies of these environments, especially during times of major outdoor sporting events, are needed to help mitigate the risk associated with lightning.
Off-shelf sedimentary record of recurring global sea-level changes during the Plio-Pleistocene: evidence from the cyclic fills of exhumed slope systems in central Italy

The markedly cyclic sedimentary successions of four late Pliocene to early Pleistocene slope turbidite systems exposed in eastern central Italy have been resolved into 31 high-frequency sequences. Chronological constraints from biostratigraphy and magnetostratigraphy indicate that these successions form a composite, partially overlapping stratigraphic record and sequence-bounding surfaces can be convincingly correlated with glacial oxygen isotope stages G2–60 (c. 2.65–1.7 Ma) inclusive. The studied successions, therefore, preserve an extraordinary and legible record of recurring, orbitally dictated glacio-eustatic sea-level fluctuations and provide an unprecedented opportunity to examine the deep-water sedimentary response to such high-frequency changes from an outcrop perspective. Supplementary material: Sedimentological attributes of lithofacies identified in the studied successions are available at www.geolsoc. org.uk/SUP18549.
Electrification of rock drills

The world is looking for greener solutions and so is the mining industry. This quest has led to the question whether it is possible to have a completely electric rock drill. This work carries out an initial exploration of completely electrified percussion. Furthermore, it compares the preliminary performance of an electrified rock drill against a hydraulic counterpart. A mathematical model for an electromagnetic linear motor was developed and simulated as a component in the simulation software Hopsan. This component was then incorporated into a electromagnetic rock drill model which uses components from Epiroc’s in-house developed library. The electromagnetic rock drill model was then optimised and used to obtain the performance characteristics such as impact energy and frequency which were compared against one of the hydraulic rock drill models, COP 1838. The results show that it is possible to reach the same performance as the COP 1838 with enough input current. The characteristics were then studied with respect to variation of physical parameters of the electromagnetic linear motor and input current. Finally some limitations and strengths of the electromagnetic rock drill concept are discussed and some conclusions are presented.
WAVE INDUCED FLOW AND TRANSPORT IN SEDIMENT BEDS 1

ABSTRACT: The fate of contaminants in large water bodies is highly influenced by the transfer of flow and solutes across the water sediment interface. In this paper, an analytical model is presented where flow in both sediment bed and open channel is coupled at the interface through a boundary layer occupying the upper part of the sediment bed. The presence of this layer allows not only the capture of the inertia effects through a drag term in the generalized Darcy's equation, but also the specification of different soil parameters for the two porous zones. The flow is advective and driven by wave action along the water surface. The resulting system is solved for the pressure and flux in each sediment layer. The generated transport velocity fields are linked to a random walk simulation that is used to examine the trajectories of solute particles. Comparison of these trajectories against experimental tracer tests suggests a pattern very similar to the one attributed to the presence of surface mounds. The results clearly show the significance of the boundary layer and the drag term for soil with high permeability and the impact of both the thickness of the boundary layer and the length of the gravity wave relative to the depth of the water channel on the transport and exchange across the interface. The paper also examines the sensitivity of the mass exchange to the permeability of the two porous zones.