Miracle-dz/UniFAR-FTUs huggingface dataset:
Quantify the Contribution of Nature-Based Solutions in Reducing the Impacts of Hydro-Meteorological Hazards in the Urban Environment: A Case Study in Naples, Italy

Urban areas are vulnerable to multiple risks associated with hydro-meteorological hazards (HMHs). The assessment of the climate benefits of implementing nature-based solutions (NBSs) in urban areas, especially in open spaces, is widely recognised and discussed within the scientific literature; however, the quantification of these benefits, in terms of the HMHs reduction, human safety and human well-being, is still a subject of debate. In this context, this contribution proposes a methodological approach that, starting from the analysis of the impacts of coastal flooding and in terms of the potential direct and tangible economic damages, heatwave events and vulnerability of open spaces, proposes the application and assessment of NBSs in terms of the reduction in these impacts. The process was developed in the GIS environment based on the processing of open-source data. The test was conducted in the case study of Naples’ waterfront to identify the potentialities and limitations of the approach. The results showed the contribution of NBSs in reducing the economic damages due to coastal flooding and the improved vulnerability conditions to heatwave events.
In Vitro Anticancer and Antioxidant Potential of Pittosporum dasycaulon Leaves extract Against the Human Liver and Lymphoma Cancer

Cancers are the uncontrolled growth of cells or tumors, and it is one of the leading causes of death all over the world. Currently, available synthetic drugs such as cisplatin, doxorubicin and fluorouracil are reported to have notable side effects in living tissues (skin irritations, dry and cracked skin, and mouth sores). So researchers are scrutinizing for alternative medications to overcome these side effects. Plants are one of the vital sources of alternative medicines with less toxicity and may overcome these side-effects of synthetic drugs. The study evaluated cytotoxicity and antioxidant potential on methanolic and aqueous extract of Pittosporum dasycaulon leaves. In the present study of cytotoxicity, the selected extracts were screened against two cancer cell lines (human liver cancer cells and Lymph cancer cell-Dalton's lymphoma ascites ascites). Two normal cells, intestinal epithelial-6, and Rat spleen were used to test cytotoxicity by using the trypan blue exclusion method and 3-(4, 5-dimethylthiazolyl-2)-2, 5-diphenyltetrazolium bromide assay. The antiradical activity was also evaluated with its half maximal inhibitory concentration. The content of total phenolic, flavonoid and saponins was also estimated. The present study displayed leaves methanolic extract found to have a significant rate of cell death against cancer cell lines (Dalton's lymphoma ascites and human liver cancer cells) with lethal concentration 50 values ranging from 8.21±0.3 to 55.65±0.11 µg/ml. However, the same extract had very less cytotoxicity even in higher doses against non-cancerous intestinal cell lines (intestinal epithelial-6) and rat spleen cell lines ranging from 389.50±0.6 to 1800.00±0.1 μg/ml. The quantitative analysis of leaf methanolic extract showed a high level of saponins and phenolic compounds. Therefore, leaves of Pittosporum dasycaulon Miq are a promising candidate for natural antioxidant as well as anticancer components. Hence, further extensive study urges to evaluate the mechanism as well as to investigate of individual components responsible for cytotoxicity and antiradical potential.
Peran Budaya Organisasi dalam Mempengaruhi Loyalitas Karyawan di Grand Rocky Hotel Kota Bukittinggi

This research was conducted because there are several phenomena in the form of employee displacement at Grand Rocky Hotel in Bukittinggi. Behind the high employee loyalty at Grand Rocky Hotel, there are still several employee complaints such as overtime work, and the high workload received by employees. The purpose of this study is to analyse how organisational culture affects employee loyalty at Grand Rocky Hotel Bukittinggi. The method used is a causal associative approach with a population of 106 employees and a sample determined by proportional sampling technique with a sample of 52 employees. The data collection technique used a questionnaire/questionnaire which was arranged according to a Likert scale. Data analysis uses linear regression analysis to see whether organisational culture has an influence on employee loyalty at Grand Rocky Hotel in bukittinggi.Based on the results of hypothesis testing that has been done, the R Square value is 0.124, meaning that the contribution of organizational culture variables to employee loyalty is 12.4% while 87.6% is influenced by other factors. Organizational culture has a positive effect on employee loyalty with a coeffitient value of 0.352, meaning that organizational culture plays a role or has an effect on increasing employee loyalty.
Adaptive Channel Allocation for Wi-Fi HaLow Networks

The Restricted Access Window (RAW) introduced in IEEE 802.11ah (marketed as Wi-Fi HaLow) is a key feature to address large-scale and dense IoT applications, where stations (STAs) are split into groups and access the channel periodically. In this work, we propose an Adaptive Channel Allocation (ACA) scheme for the RAW mechanism given the assigned STAs, their load, and their locations. Our proposal yields the successful delivery of all STAs’ packets with an improvement in channel usage of up to 80%.
UNIQUENESS OF EXTREMAL KÄHLER METRICS FOR AN INTEGRAL KÄHLER CLASS

For an integral Kahler class on a compact connected complex manifold, an extremal Kahler metric, if any, in the class is unique up to the action of Aut0(M). This generalizes a recent result of Donaldson (see [4] for cases of metrics of constant scalar curvature) and that of Chen [3] for c1(M)≤0.
Generalized coverage models and public facility location

Many public facility location models have been developed using maximum service distance criteria. Most of these models can be classified as covering modes. This paper expands on the notion of service coverage where the value of coverage is not a constant as in previous models. This varying coverage value when coupled with the Maximal Covering Location Problem yields a set of new models which are more complex but still tractable. These new models provide an approach that is sensitive to many of the issues found in public facility location. Both convex and nonconvex covarage functions are discussed along with their potential use in locating noxious activities.
Shil'nikov's theorem-a tutorial

The phenomenon of chaos has been observed in many nonlinear deterministic systems in both experimental and computer-simulation contexts. Given the nature of this phenomenon, however, an analytical tool is needed to ensure that what is observed is not an artifact of the device used to measure or simulate the given system. This paper provides a tutorial look at one of the few and most useful of such tools: Shil'nikov's theorem and its various extensions. This exposition presents the basic terminology and concepts related to Shil'nikov's results, a formal statement and subsequent discussion of its two basic versions for 3D systems, as well as two example applications of Shil'nikov's method to a piecewise-linear system. >
A deep Westerbork survey of areas with multicolor Mayall 4 M plates. III - Photometry and spectroscopy of faint source identifications

Photometrie optique et spectrophotometrie de 171 identifications trouvees dans un echantillon de 302 radiosources faibles observees a Westerbork (avec S 1,4 >0,6 mJy). On donne la morphologie et l'environnement des identifications. Le pourcentage des quasars est de 20%. On distingue les radiogalaxies rouges des radiogalaxies bleues qui, pour V≤18,5 sont exclusivement des elliptiques geantes et des spirales, respectivement. On etudie les diagrammes magnitude-deplacement vers le rouge et les relations couleur-deplacement vers le rouge
Optimization of the Outlet Shape of an Air Circulation System for Reduction of Indoor Temperature Difference

This study proposes an air circulation system that can forcibly circulate the lowest cold air to the top of indoor smart farms, and it has a width, length, and height of 6, 12, and 2.5 m, respectively, to reduce the effect of temperature differences between the upper and lower parts on the growth rate of plants in winter. This study also aimed to reduce the temperature deviation generated between the upper and lower parts of the target indoor space by optimizing the shape of the manufactured outlet of the air circulation system. A table of L9 orthogonal arrays, which is a design of experiment methodology, was used, and it presented three levels of the following design variables: blade angle, blade number, output height, and flow radius. Flow analysis was performed for the experiments on the nine models to minimize the high time and cost requirements. Based on the derived analysis results, an optimized prototype was manufactured by applying the Taguchi method, and experiments were conducted by installing 54 temperature points in an indoor space to identify the temperature difference between the upper and lower parts over time for the performance experiment. Under natural convection, the minimum temperature deviation was 2.2 °C and the temperature difference between the upper and lower parts did not decrease. For a model without an outlet shape, such as a vertical fan, the minimum temperature deviation was 0.8 °C and at least 530 s were required to reach a difference of less than 2 °C. When air was circulated in the air circulation system with the proposed outlet shape, the minimum temperature deviation was 0.6 °C and the time required to reach a difference of less than 2 °C was 440 s. Using the proposed air circulation system, cooling and heating costs are expected to be reduced in summer and winter because the arrival time and temperature difference between the upper and lower parts can be reduced using the outlet shape compared with the case without the outlet shape.
Digital color image processing within the framework of a human visual model

Evidence that the way brightness and chromatic information are processed by the human visual system is relevant to the field of image processing is presented. A three-dimensional homomorphic model for human color vision is outlined. Applications of this model to color image enhancement, transmission, coding, and to the definition of a distortion measure between such images are shown.
Classification of Students’ Attentional States Using Attention Mechanism and BiLSTM Fusion

At present, most deep learning-based analysis of student’s attentional states in class has been studied only for a single model structure, and there is not enough recognition accuracy. To address this issue, an attention classification model FF-BiALSTM is proposed, which integrates an Attention Mechanism and a bi-directional long short-term memory neural network (Bi-LSTM). The Attention Mechanism is used to capture global features better and two Bi-LSTM layers are employed to capture time-domain features more effectively. This study defined two attention states to identify whether students are focused or not. Experiments on the Student EEG and Student Reading datasets show that this algorithm can effectively improve student attention classification performance. This experiment obtained 97.77% accuracy on the Student EEG training set and 91.35% on the Student EEG testing set.
Multichannel seismic impedance inversion based on Attention U-Net

Recently, seismic inversion has made extensive use of supervised learning methods. The traditional deep learning inversion network can utilize the temporal correlation in the vertical direction. Still, it does not consider the spatial correlation in the horizontal direction of seismic data. Each seismic trace is inverted independently, which leads to noise and large geological variations in seismic data, thus leading to lateral discontinuity. Given this, the proposed method uses the spatial correlation of the seismic data in the horizontal direction. In the network training stage, several seismic traces centered on the well-side trace and the corresponding logging curve form a set of training sample pairs for training, to enhance the lateral continuity and anti-noise performance. Additionally, Attention U-Net is introduced in acoustic impedance inversion. Attention U-Net adds attention gate (AG) model to the skip connection between the encoding and decoding layers of the U-Net network, which can give different weights to different features, so the model can focus on the features related to the inversion task and avoid the influence of irrelevant data and noise during the inversion process. The performance of the proposed method is evaluated using the Marmousi2 model and the SEAM model and compared with other methods. The experimental results show that the proposed method has the advantages of high accuracy of acoustic impedance value inversion, good transverse continuity of inversion results, and strong anti-noise performance.
Chaotic Maps on a Measure Space and the Behavior of the Orbit of a State

This paper is a continuation of [5]. As well known, a continuous map $\varphi$ on a metric space is considered as a chaotic map if $\varphi$ has the following properties. (1) The set of all periodic points for $\varphi$ is dense. (2) $\varphi$ is one-sided topologically transitive. (3) $\varphi$ depends sensitively on initial conditions. These properties are concemed with the orbit of a given initial point and the interesting relation among these three conditions was shown in [1]. Moreover, the chaotic property of the orbit of a point for the logistic map $\lambda(x)=4x(1-x)$ has been pointed out since old times
Treatment with PCSK9 Inhibitor Evolocumab Improves Vascular Oxidative Stress and Arterial Stiffness in Hypercholesterolemic Patients with High Cardiovascular Risk

Atherosclerosis and atherosclerotic-related cardiovascular diseases (ASCVD) are characterized by high serum levels of low-density lipoprotein cholesterol (LDL-C) that can promote the generation of reactive oxygen species (ROS). To answer the need for better LDL-C control in individuals at high and very high risk for CVD, a new injectable innovative family of lipid-lowering (LL) monoclonal antibodies against the protein convertase subtilisin/kexin type 9 (PCSK9) has been approved. However, the effect of these drugs on vascular function, such as ROS generation and arterial stiffness, has not already been extensively described. In this report, we present data from 18 males with high to very high CV risk undergoing LL treatment (LLT) with either statin and ezetimibe or ezetimibe monotherapy, who experienced, after a 2-month treatment with Evolocumab, a significant improvement in blood pressure (BP)-adjusted carotid–femoral pulse wave velocity (cfPWV) (p-value = 0.0005 in the whole cohort, p-value = 0.0046 in the sub-cohort undergoing background LLT with statin and ezetimibe, p-value = 0.015 in the sub-cohort undergoing background LLT with ezetimibe monotherapy), which was significantly associated with a decrease in freshly isolated leukocytes (PBMCS)-derived H2O2 production (p-value = 0.004, p-value = 0.02 and p-value = 0.05, respectively, in the whole cohort, in the statin + ezetimibe sub-cohort, and the ezetimibe sub-cohort). Our observations support the role of systemic oxidative stress in atherosclerosis and give a further rationale for using Evolocumab also for its effect in vascular disorders linked to oxidative processes.
Convergent Validity of the Edinburgh Postnatal Depression Scale and the Patient Health Questionnaire (PHQ-9) in Pregnant and Postpartum Women: Their Construct Correlations with Functional Disability

This study aimed to evaluate the convergent validity of the Edinburgh Postnatal Depression Scale (EPDS) and the Patient Health Questionnaire (PHQ-9) in Thai pregnant and postpartum women, using the 12-item WHO Disability Assessment Schedule (WHODAS) as the reference standard. Participants completed the EPDS, PHQ-9, and WHODAS during the third trimester of pregnancy (over 28 weeks in gestational age) and six weeks postpartum. The sample included 186 and 136 participants for the antenatal and postpartum data analyses, respectively. The antenatal and postpartum data showed moderate correlations between both the EPDS and the PHQ-9 scores and the WHODAS scores (Spearman’s correlation coefficients = 0.53–0.66, p < 0.001). The EPDS and PHQ-9 were moderately accurate in distinguishing disability (WHODAS score ≥ 10) from non-disability (WHODAS score < 10) in pregnant and postpartum participants, but the area under the curve of the PHQ-9 receiver operating characteristic curves in postpartum participants was significantly larger than that of the EPDS, with a difference (95% CI; p-value) of 0.08 (0.16, 0.01; p = 0.044). In conclusion, the EPDS and PHQ-9 are valid for assessing PND-related disability in pregnant and postpartum women. The PHQ-9 may perform better than the EPDS in distinguishing disability from non-disability in postpartum women.
Characterization of domain wall–based traps for magnetic beads separation

We characterize the magnetic behavior of an array of magnetic bead traps based on domain walls (DWs) formed in zig-zag permalloy wires patterned on a Si substrate. Using magnetic force and magneto-optical Kerr effect microscopy, we study the nucleation and annihilation of DWs for two different wire widths. Through scanning electron microscopy with polarization analysis, we analyze in detail the magnetization configuration of the DWs in the presence of a magnetic bead previously trapped by the DW stray field. Finally, we patterned the magnetic nanostructures directly on a polydimethylsiloxane (PDMS) substrate, and we show that the functionality of the device is completely maintained. These results pave the way to the integration of DW-based devices in a PDMS lab-on-a-chip system for magnetic bead separation.
A Preliminary Morphology of Precipitation Systems In Tropical Northern Australia

A preliminary morphology of convective systems observed in the vicinity of Darwin, Australia is presented. Several types of tropical convection during monsoonal and break-season flow are identified using specific examples and compared with a range of systems observed worldwide in the general context of the bulk Richardson number. A significant spectrum of convective activity ranging from low shear and low Convective Available Potential Energy (CAPE), to high shear and moderate to high CAPE, typical of mid-latitude severe storms, is identified. Significant differences between monsoonal flow and break-season systems are apparent. the formation of convective lines perpendicular to the low-level shear and the apparent balance between advancing shallow cold pools and the shear are ubiquitous features. Convective-scale downdraughts and mesoscale descent appear to be responsible for redistribution of 700 mb momentum to the planetary boundary layer (PEL). The motion of the break-season squall lines appears to result from an equilibrium between the cold pool and the undisturbed environmental PEL flow. Deviations from this balance are hypothesized, to result in the observed ‘propagating’ and ‘non-propagating’ or slow-moving modes. Examples of these modes are given, showing the classical continuous development of new cells in a balanced state along the leading edge of long-lived squalls and, in the propagating case, the discontinuous development of new cells on the cold pool ahead of the squall.
A ranching economic analysis of ventenata (Ventenata dubia) control in northeast Wyoming

Abstract Invasive species pose a threat to the livelihoods of many people living on rangelands of the western United States. Invasive species impact many ecosystem goods and services of the areas they invade and represent one of the largest causes of habitat degradation. On private ranches, economic analyses often find that conservation practices, such as invasive species control, are not economically viable, in contrast to what is found at the landscape scale. In northeast Wyoming, ventenata [Ventenata dubia (Leers) Coss. ] is a relatively new invader in the Great Plains ecoregion that threatens forage production on ranches. Our objective was to explore the economic costs of V. dubia for two options available to a ranch operation: purchasing extra hay to offset losses in forage and controlling V. dubia with herbicide. Using a partial budget analysis, we compare these two options in three invasion scenarios using a range of forage utilization rates and discount rates. Controlling V. dubia with herbicide was a cheaper option compared with purchasing additional hay in many cases. In fact, at 50% utilization, it is cheaper to control V. dubia in all of our scenarios at all discount rates given our assumptions. For lower grazing utilization rates, it becomes cheaper to purchase hay in some cases other than in our worst-case invasion scenario. In these cases, coordination among ranchers is needed to effectively control V. dubia. There are many ranch-specific differences that may make a different option more feasible, and we did not explore options of reducing herd sizes. However, our results suggest that controlling V. dubia can be an economically viable option under certain circumstances. Additional assistance in the form of a cost-share program, and facilitation of coordination is needed to overcome the difficulties of private management of invasive species.
Ground to satellite secure key exchange using quantum cryptography

We examine the possibility of secure key exchange between a ground station and a low earth orbit satellite using the technique of quantum cryptography. The study suggests there are no technical obstacles to building a system that could exchange keys at kilobaud rates between a metre diameter telescope on the ground and a satellite with a 10 cm diameter lightweight telescope.
An investigation of distributed computing for combinatorial testing

Combinatorial test generation, also called t ‐way testing, is the process of generating sets of input parameters for a system under test, by considering interactions between values of multiple parameters. In order to decrease total testing time, there is an interest in techniques that generate smaller test suites. In our previous work, we used graph techniques to produce high‐quality test suites. However, these techniques require a lot of computing power and memory, which is why this paper investigates distributed computing for t ‐way testing. We first introduce our distributed graph colouring method, with new algorithms for building the graph and for colouring it. Second, we present our distributed hypergraph vertex covering method and a new heuristic. Third, we show how to build a distributed IPOG algorithm by leveraging either graph colouring or hypergraph vertex covering as vertical growth algorithms. Finally, we test these new methods on a computer cluster and compare them to existing t ‐way testing tools.
Resonance, Chaos and Stability in the General Three-Body Problem

Abstract Three-body stability is fundamental to astrophysical processes on all length and mass scales from planetary systems to clusters of galaxies, so it is vital we have a deep and thorough understanding of this centuries-old problem. Here we summarize an analytical method for determining the stability of arbitrary three-body hierarchies which makes use of the chaos theory concept of resonance overlap. For the first time the dependence on all orbital elements and masses can be given explicitly via simple analytical expressions which contain no empirical parameters. For clarity and brevity, analysis in this paper is restricted to coplanar systems including a description of a practical algorithm for use in N-body and other applications. A Fortran routine for arbitrarily inclined systems is available from the author, and animations of stable and unstable systems are available at www.maths. monash.edu. au/~ro/Capri.