Miracle-dz/UniFAR-FTUs huggingface dataset:
Finding the Tipping Point: When Heterogeneous Evaluations in Social Media Converge and Influence Organizational Legitimacy

Can citizens impact the broader discourse about an organization and its legitimacy? While social media have empowered citizens to publicly question firms through large volumes of online evaluations, the high heterogeneity of their evaluations dilutes their impact. Our empirical study applying a threshold vector autoregressive model (TVAR) analysis of 2.5 million tweets and 1,786 news media articles tests the condition by which the heterogeneity of online evaluations converges and influences the broader media discourse. Although social media evaluations do not initially influence media legitimacy, they become influential after reaching a tipping point of refracted attention, which is created by high volume and convergence of individual evaluations around few aggregative frames. Thus, social media storms may influence the broader discourse about an organization when this discourse converges and reaches a tipping point, rather than merely through the massive participation of citizens.
Extraction of Ln(III) and An(III) by N,N-di(2-ethylhexyl)- thio-diglycolamic Acid

ABSTRACT The extraction of Nd(III), Eu(III), Am(III), and Cm(III), trivalent lanthanides and actinides in high level nuclear waste, by the extractant N,N-di(2-ethylhexyl)-thio-diglycolamic acid (HDEHSDGA, HA) is investigated via thermochemical and spectroscopic methods. In this study, HDEHSDGA behaves as a conventional mono-basic cation-exchanging ligand extracting Ln(III) and An(III) from nitrate solutions of pH region. The information obtained from the extraction experiments and the spectroscopic analyses indicate that the primary extracted complex species may be MA3 · 2H2O for these four cations and likely for the other trivalent f-elements. In the extracted complexes, the anionic monomer extractant A− coordinates to the metal ions presumably forming bidentate coordination via the carbonyl oxygen atom and one of the oxygen atoms of the carboxylate; it appears that the thio-ether does not directly participate in the complexation reaction. The results ultimately demonstrate that HDEHSDGA does not exhibit significant selectivity for An(III) over Ln(III), in contrast to results reported in a previous study conducted with unpurified extractant.
Assessing Coagulation Parameters in Healthy Asian Elephants (Elephas maximus) from European and Thai Populations

Simple Summary Asian elephants (Elephas maximus) are considered endangered and their population is in continuous decline. Understanding their social interactions, health, and welfare status has been a topic of intense research in recent decades. Coagulation assessments have been underutilized in wildlife but can give valuable information on individual health. This study aims to increase the knowledge of the coagulation status in healthy Asian elephants from different backgrounds and age groups, using a fast point-of-care analyzer. This tool can be further used in either routine health check-ups performed by caretakers or in a clinical emergency, such as in cases of elephant endotheliotropic herpesvirus hemorrhagic disease outbreaks. We have also investigated the presence of genomic mutations in one coagulation factor—factor VII—where a disorder was previously reported in an Asian elephant. Hereby, we report new reference values for coagulation parameters, such as coagulation times and fibrinogen concentration of Asian elephants assessed in Thailand and in Europe, as well as several single point mutations found in the exons of Elephas maximus coagulation F7 gene. We found the point-of-care analyzer used in this study to be very practical and user friendly for a zoo and field environment and hope that this project will incentivize further coagulation studies in Asian elephants and in other wildlife species. Abstract The Asian elephant population is continuously declining due to several extrinsic reasons in their range countries, but also due to diseases in captive populations worldwide. One of these diseases, the elephant endotheliotropic herpesvirus (EEHV) hemorrhagic disease, is very impactful because it particularly affects Asian elephant calves. It is commonly fatal and presents as an acute and generalized hemorrhagic syndrome. Therefore, having reference values of coagulation parameters, and obtaining such values for diseased animals in a very short time, is of great importance. We analyzed prothrombin time (PT), activated partial thromboplastin time (aPTT), and fibrinogen concentrations using a portable and fast point-of-care analyzer (VetScan Pro) in 127 Asian elephants from Thai camps and European captive herds. We found significantly different PT and aPTT coagulation times between elephants from the two regions, as well as clear differences in fibrinogen concentration. Nevertheless, these alterations were not expected to have biological or clinical implications. We have also sequenced the coagulation factor VII gene of 141 animals to assess the presence of a previously reported hereditary coagulation disorder in Asian elephants and to investigate the presence of other mutations. We did not find the previously reported mutation in our study population. Instead, we discovered the presence of several new single nucleotide polymorphisms, two of them being considered as deleterious by effect prediction software.
The Facilitative Effect of Impulsiveness on the Dark Triad and Social Network Sites Addiction: The Dark Triad, Impulsiveness, SNS Addiction

This research investigated the relationships of the Dark Triad, impulsiveness, and social network sites (SNS) addiction with adolescents. In particular, this research examined the indirect effects of the measured motor, attentional, and nonplanning impulsiveness on the relationship of the Dark Triad and SNS addiction. To examine the possible antecedents of SNS addiction, 169 adolescents aged 14-17 were recruited for this research. After obtaining informed consents from their legal guardians, these adolescents completed the Dirty Dozen, the modified Bergen Facebook Addiction Scale, and the Barratt Impulsiveness Scale – version 11. Results showed that the Dark Triad composite score was positively correlated with SNS addiction and the different aspects of impulsiveness, while SNS addiction was positively correlated with motor impulsiveness. The indirect effect of motor impulsiveness on the relationship of the Dark Triad and SNS addiction was significant. The present findings provide theoretical insights to the development of SNS addiction.
An Improved D8‐LTD for the Extraction of Total Contributing Area (TCA) by Adopting the Strategies of Path Independency and Local Dispersion

D8‐LTD is a path‐based flow direction algorithm for estimating total contributing area (TCA). However, the precision of D8‐LTD TCA is seriously challenged by the incorporation of flow paths and basic hypothesis of allowing only one receiving pixel. To solve above problems, this work proposes an improved D8‐LTD by adopting the strategies of path independency and local dispersion (i.e., LTD‐PI‐LD). Two indicators are adopted to quantify size and extent precisions of estimated TCAs relative to theoretical TCA. Then, LTD‐PI‐LD is compared with several typical single‐flow‐direction (SFD) algorithms (i.e., D8, D8‐LTD, LTD‐PI) and multiple‐flow‐direction (MFD) algorithms (i.e., MFD‐Quinn, D∞) on synthetic surfaces. Results indicate that (1) TCA maps of D8 and D8‐LTD contain too many singular high‐TCA tubes and source pixels, which are caused by the incorporation of flow paths and converging characteristics of SFD algorithms. (2) In MFD algorithms, the problem of artificial dispersion triggers the mechanisms of cross compensation and mutual amplification, leading to high size precision but low extent precision in estimated TCAs. (3) Strategy of path independency prevents the occurrence of high‐TCA tubes and effectively reduces the number of source pixels. (4) Both size and extent precisions of D8‐LTD TCAs are largely improved by introducing the strategies of path independency and local dispersion. Of all algorithms, LTD‐PI‐LD obtains the highest/second‐highest size precision and the highest extent precision in estimated TCAs. As a whole, LTD‐PI‐LD shows advantages of high precision in estimated TCAs, low computation cost, high efficiency and robustness to DEM (Digital elevation model) resolution and terrain type.
THE USE OF Senecio cineraria PLANTS SPRAYED WITH CITRIC ACID FOR LEAD POLLUTION PHYTOREMEDIATION

The present study was carried out at Antoniadis Research Branch, Horticulture Research Institute A.R. C. Alexandria, Egypt during 2017 and 2018 seasons. This study aim to investigate the effect of for levels of lead 0,100, 200 and 300 ppm) in water irrigation and three different concentrations of citric acid (0,250 and 500 ppm) as foliar application on the vegetative growth and chemical composition of Senecio cineraria. Moreover, this investigation aim to study the ability of using Senecio cineraria as lead phytoremediation. The results exhibited significant reduction in all vegetative parameters as affected by lead concentration treatments. On the other hand, significant increment in vegetative growth parameters was detected by using 500 ppm citric acid. Concerning chlorophyll and carbohydrates contents, the highest significant values were obtained under tap water irrigation (0 and 0 levels of lead and citric acid). Moreover,the results showed no significant effect of the combinations (interaction) between lead and citric acid concentrations on vegetative growth parameters. Meanwhile, the results showed, the highest amount of lead sentient in leaves and roots was detected under the treatments combination (300 ppm load 0 citric acid). Finally, the results also showed, it is possible to use Senecio cineraria hands as lead phytoremediation by using citric acid (300 ppm) as foliar application.
Cutoff Value of the Numbers of Anaplastic Cytological Features Present in Fine-Needle Aspiration Biopsy of Bone Tumors to Predict Malignancy

Bone neoplasms are rarely found; however, they usually occur in young patients. It is imperative to diagnose these conditions promptly and accurately, as patient’s outcomes also depend on timely and appropriate treatments. Fine Needle Aspiration Biopsy (FNAB) is increasingly utilized as a method of establishing preoperative diagnosis of bone tumors because it is less invasive, rapid, and cost-effective. This study aims to determine the diagnostic value of the presence of certain cytological features in FNAB for bone tumors, evaluate cytological features to differentiate between benign and malignant bone tumors, and determine the cut-off point of the presence of certain cytological features of FNAB in bone tumors. This study is an analytical cross-sectional study to 35 bone tumor cases which underwent FNAB and subsequent histopathological examination from January 2014 – December 2017 in the Department of Anatomic Pathology of Saiful Anwar General Hospital. Diagnostic value testing was performed using 2x2 table and Receiver Operating Characteristic (ROC) curve to determine the sensitivity, specificity, and accuracy of FNAB by evaluating cytological features of anaplasia in differentiating between benign and malignant bone tumors in comparation to histopathological examination. The result revealed that the presence of >4 cytological features of anaplasia without the presence of clinicoradiological data yield 81.82% sensitivity, 100% specificity, 100% positive predictive value, 76.47% negative predictive value, and 88.57% accuracy. In conclusion, cytological features of anaplasia could become a reliable predictor in determining benignity and malignancy of bone tumors especially in cases where clinicoradiological data are insufficient.
A Statistical Study on Wide‐Amplitude Kinetic Alfvénic Pulse at 8–12RE in the Magnetotail by THEMIS Spacecraft From 2008 to 2010

Using THEMIS spacecraft observations from 2008 to 2010, we perform statistical study on the wide‐amplitude kinetic Hall‐like Alfvénic wave (KAW) pulse in the near‐Earth tail region of 8–12 RE. The KAW pulse is identified by Ez‐By pulse with parallel‐predominantly Poynting flux (|P///PT| > 0.7) and large Ez/By ratio (|∆Ez/∆By | > VA, VA is Alfvénic velocity). Three typical events are presented. Therein, the KAW pulse on 24 March 2009 at the magnetic dipolarization is accompanied by the ion/electron dispersed structure (IDS/EDS; time of flight effect from reconnection source). Statistical study shows that the near‐Earth KAW pulse has a typical temporal scale of ∼15–25 s. The KAW pulses are mainly distributed in the plasma sheet boundary layer (PSBL) and tail lobe regions of β < 0.1 (β is the ratio of thermal pressure to magnetic pressure). The KAW pule at the PSBL/lobe has a wide distribution in the dawn‐dusk direction (−10 RE < |Y| < 10 RE), with the maximum occurrence at the midnight (|Y| < 4 RE). The KAW pulses at the PSBL/lobe are predominantly earthward‐propagating. Only a small number of the KAW pulses are tailward‐propagating. The earthward‐propagating pulse has a higher Poynting flux (PT) than tailward‐propagating pulse. The KAW pulse occurs during quiet time (AE < 200 nT) as well as substorm interval (AE > 200 nT). The substorm‐interval pulse has a higher Poynting flux than the quiet‐time pulse. Finally, tail reconnection is likely the significant source of the near‐Earth KAW pulses at 8–12 RE.
Generation of Test Strategy for Sequential Fault Diagnosis Based on Genetic Algorithms

A novel approach based on genetic algorithms is proposed to generate the effective and efficient test strategy for sequential fault diagnosis. The effective test strategy is presented by an unfixed length chromosome, the fitness assignment of which is based on its rank of test costs among the whole population. Some new genetic operators suited for sequencing coding are also designed. Finally, the test strategy with minimization of test costs is obtained through evolutionary computation. The results of numerical simulations on the test case of airship pre-launch checkout show that the proposed approach significantly decreases test costs and is more adaptable to solve large-scale test sequencing problems for diagnosis when compared with that based on the information gain maximization.
Identification of Potential Antiviral Inhibitors from Hydroxychloroquine and 1,2,4,5-Tetraoxanes Analogues and Investigation of the Mechanism of Action in SARS-CoV-2

This study aimed to identify potential inhibitors and investigate the mechanism of action on SARS-CoV-2 ACE2 receptors using a molecular modeling study and theoretical determination of biological activity. Hydroxychloroquine was used as a pivot structure and antimalarial analogues of 1,2,4,5 tetraoxanes were used for the construction and evaluation of pharmacophoric models. The pharmacophore-based virtual screening was performed on the Molport® database (~7.9 million compounds) and obtained 313 structures. Additionally, a pharmacokinetic study was developed, obtaining 174 structures with 99% confidence for human intestinal absorption and penetration into the blood–brain barrier (BBB); posteriorly, a study of toxicological properties was realized. Toxicological predictions showed that the selected molecules do not present a risk of hepatotoxicity, carcinogenicity, mutagenicity, and skin irritation. Only 54 structures were selected for molecular docking studies, and five structures showed binding affinity (ΔG) values satisfactory for ACE2 receptors (PDB 6M0J), in which the molecule MolPort-007-913-111 had the best ΔG value of −8.540 Kcal/mol, followed by MolPort-002-693-933 with ΔG = −8.440 Kcal/mol. Theoretical determination of biological activity was realized for 54 structures, and five molecules showed potential protease inhibitors. Additionally, we investigated the Mpro receptor (6M0K) for the five structures via molecular docking, and we confirmed the possible interaction with the target. In parallel, we selected the TopsHits 9 with antiviral potential that evaluated synthetic accessibility for future synthesis studies and in vivo and in vitro tests.
Exploring the Three Phases of Motivation in The Learning of Japanese as A Foreign Language

Motivation is one of the prerequisites in Japanese learning. A student who excels, but does not have enough motivation, will definitely not achieve the results as expected. This study is conducted to explore the three phases of motivation in the learning of Japanese language as a foreign language using the Model of Second Language Motivations (Dörnyei & Ottó, 1998). A quantitative survey consisting of 4 sections with items on the demographic profile and 39 items via Google Form using 5-Likert scales were used as the instruments. Questionnaires were answered by 255 students from three clusters; namely the clusters of Science and Technology, Arts and Humanities, and Business and Administration in a public university in Malaysia. Findings revealed that learners have the highest motivation during the actional stage as curiosity-driven has intrinsically motivated them to learn. Learners’ initial motivation has reversed when they reached the actional stage due to their stress about the tests or examinations. However, learners’ motivation bounce back during the post-actional stage and they are confident they will perform an excellent job on their assessments or assignments. This study reveals that instructors have a role to play to keep students motivated throughout the process of Japanese language learning. Further research can be done on preactional, actional and post actional stages by looking at the influence of external motivation by associating it with cognitive, affective, situational or circumstantial factors that will support and complement this study.
A Solution Approach to Distributionally Robust Chance-Constrained Assignment Problems

We study assignment problem with chance constraints (CAP) and its distributionally robust counterpart (DR-CAP). We present a technique for estimating big-M in such a formulation that takes advantage of the ambiguity set. We consider a 0-1 bilinear knapsack set to develop valid inequalities for CAP and DR-CAP. This is used within a probability cut framework to solve DR-CAP. A computational study on problem instances obtained from using real hospital surgery data shows that the developed techniques allow us to solve certain model instances, and reduce the computational time for others. The use of Wasserstein ambiguity set in the DR-CAP model improves the out-of-sample performance of satisfying the chance constraints more significantly than the one possible by increasing the sample size in the sample average approximation technique. The solution time for DR-CAP model instances is of the same order as that for solving the CAP instances. This finding is important because chance constrained optimization models are very difficult to solve when the coefficients in the constraints are random.
SEED MORPHOLOGY OF SOME TAXA OF CARYOPHYLLACEAE

Seed morphology of 28 taxa belonging to 14 genera of Caryophyllaceae was studied utilizing stereoscopic and scanning electron microscopes, to determine the significance of seed coat features as taxonomic characters. Results of the present study concluded that there are significant variations in particular surface features within all the studied members of the Caryophyllaceae. The superficial ridges and tubercules exhibit patterns that could be helpful in determining relationships among the studied species. Seed shapes were orbicular, ovate, reniform, triangular, pyriform and asymmetrical shield-shaped. Seed colours were pale brown, brown, pinkish-brown, reddish-brown, dark brown and black. Seed length varied from 0.4-3.1 mm long. The dorsal surfaces were grooved, winged or flat. The periclinal walls were convex, granulate; convex, granulate with tubercle in the central area; convex, granulate with long papillae in the central area; convex, granulate with minute tubercle in the anterior area; flat, granulate or flat, smooth. The anticlinal walls were entire or sinuate with different shapes namely: Ssinuate, Usinuate, Vsinuate and irregular sinuate. The great number of seed characters observed indicated that there is a large diversity among seeds which can provide good criteria for the identification and classification of the studied taxa.
THE CRITERIA FRAMEWORK FOR SUSTAINABLE MUSEUM DEVELOPMENT

Purpose –The purpose of this study is to identify the criteria for sustainable museums found in reference literature and specified in our research, and to suggest guidelines for museums to follow. Methodology –In our primary research, the criteria for a sustainable museum were interpreted along four pillars, for which in-depth expert interviews were conducted with Hungarian museum professionals. Semi-structured interviews were used to explore the viewpoints, expectations, and perceptions of museum staff. Findings – In terms of environmental sustainability, Hungarian contemporary museums place less emphasis on making the museum building itself more sustainable. However, it is worthwhile for institutions that have long-term plans to become more and more eco-friendly. The issue of economic sustainability is the most problematic for Hungarian museums, which can be greatly improved with an active support community that helps museums either through volunteer work or financially. From a social point of view, one of the most important tasks of museums is to ensure equal opportunities, to reach the widest possible range of people, which is facilitated if the museum can function as a community space that adequately involves museum visitors and if it continuously strengthens its role in education. In terms of cultural sustainability, the responsibilities of museums are collection management, maintaining quality, and artistic vitality. Contribution – We conceptualize and provide a framework for sustainable museums. Through our research, we have contributed to broadening the theoretical background of sustainable museums from the perspective of contemporary art museums.
Group Testing with Consideration of the Dilution Effect

We propose a method of group testing by taking dilution effects into consideration. We estimate the dilution effect based on massively collected RT-PCR threshold cycle data and incorporate them into optimizing group tests. The new constraint helps find a robust solution of a nonlinear equation. The proposed framework has the flexibility to incorporate geographic and demographic information. We conduct a Monte Carlo simulation to compare different group testing approaches under the estimated dilution effect. This study suggests that increased group size adversely impacts the false negative rate significantly when the infection rate is relatively low. Group tests with optimal pool sizes improve the sensitivity over group tests with a fixed pool size. Based on our simulation study, we recommend single group testing with optimal group sizes.