Miracle-dz/UniFAR-FTUs huggingface dataset:
Understanding the Diverging User Trajectories in Highly-related Online Communities during the COVID-19 Pandemic

As the COVID-19 pandemic is disrupting life worldwide, related online communities are popping up. In particular, two “new” communities, /r/China flu and /r/Coronavirus, emerged on Reddit and have been dedicated to COVID- related discussions from the very beginning of this pandemic. With /r/Coronavirus promoted as the official community on Reddit, it remains an open question how users choose between these two highly-related communities. In this paper, we characterize user trajectories in these two communities from the beginning of COVID-19 to the end of September 2020. We show that new users of /r/China flu and /r/Coronavirus were similar from January to March. After that, their differences steadily increase, both in language distance and membership prediction, as the pandemic continues to unfold. Furthermore, users who started at /r/China flu from January to March were more likely to leave, while those who started in later months tend to remain highly “loyal”. To understand this difference, we develop a movement analysis framework to understand membership changes in these two communities and identify a significant proportion of /r/China flu members (around 50%) that moved to /r/Coronavirus in February. This movement turns out to be highly predictable based on other subreddits that users were previously active in. Our work demonstrates how two highly-related communities emerge and develop their own identity in a crisis, and highlights the important role of existing communities in understanding such an emergence.
One (Provider) to Rule Them All: White-Label Platforms in Crowdfunding - An Exploratory Case Study

This study demystifies white-label platforms in crowdfunding and extends recent work on modular service systems. Crowdfunding is based on digital platforms and leverages the resources of an investor crowd to fill equity gaps. Recently, capital seekers have started to source the infrastructure required to manage this "open call" to the public from specialized software providers. Using an exploratory case approach based on a leading European white-label provider of equity crowdfunding platforms, the study analyzes the motives of using white-label platforms and their implications for key stakeholders. The solution can provide a shortcut to capital, allowing pre-selection processes on established platforms to be circumvented. Despite the benefits, the study identifies several risks related to conflicts of interest of providers and platforms. These can negatively impact the quality of investment offerings, data security, and funding transparency. This is one of the first studies to examine crowdfunding platforms from an IS outsourcing perspective.
Smart Service Systems in Mexico: Implications of the Socio-Economic Context on the Willingness to Co-Create

IoT generates an enormous amount of data during their operation, which can be analysed and interpreted to discover useful knowledge and ultimately to support or make decisions. Smart service systems constitute networks of multiple actors that co-create value based on this potential of IoT. The intention to adopt IoT is positively related to the willingness of the actors to co-create. As smart service systems are embedded in an overarching social system, the socio-economic context significantly influences this willingness to co-create. In this article, we argue that this systemic perception of value co-creation is an alternative approach to study IT adoption by broadening the focus to all actors involved and to the macro context. We collected interview and secondary data from six firms that offer or participate in IoT applications in Mexico. We identified several factors that motivate and inhibit the company's willingness to co-create. Our study extends research on smart service systems design and provides empirical data of a specific socio-economic context.
Characterization of a Herrmann-type high-resolution differential mobility analyzer

ABSTRACT Aerosol instrument characterization and verification for nanometer-sized particles requires well-established generation and classification instruments. A precise size selection of sub-3-nm charged aerosol particles requires a differential mobility analyzer (DMA), specially designed for the sub-3-nm size range. In this study, a Herrmann-type high-resolution DMA developed at Yale University was characterized in various operation conditions. A relation between sheath flow rate and tetraheptylammonium ion (C28H60N+, THA+, 1.47 nm, mobility equivalent diameter) was established. The maximum particle size that the DMA was able to classify was 2.9 nm with the highest sheath flow rate of 1427 liters per minute (Lpm), and 6.5 nm with the lowest stable sheath flow rate of 215 Lpm, restricted by the maximum and minimum flow rates provided by our blower. Resolution and transmission of DMA are reported for tetrapropylammonium (C12H28N+, TPA+, 1.16 nm), THA+, and THA2Br+ (1.78 nm) ions measured with two different central electrodes and five different sheath flow rates. The transmission varied between 0.01 and 0.22, and the resolution varied between 10.8 and 51.9, depending on the operation conditions. Copyright © 2016 American Association for Aerosol Research
The effect of baduanjin exercise in rehabilitation for functional ankle instability: A study protocol for a randomized controlled pilot trial

Introduction: Patients with functional ankle instability (FAI) have problems with joint control, balance, gait, and postural symmetry. Baduanjin is a type of traditional Chinese exercise that has been shown to be effective in treating many diseases and symptoms. However, to date, the effect of Baduanjin in patients with FAI has not been proved. This pilot trial is an assessor-blinded randomized controlled trial, and its objective is to study the efficacy and safety of Baduanjin on the rehabilitation of patients with FAI. Methods: Seventy-two participants, who are eligible according to specified inclusion and exclusion criteria, will be randomized (in a 1:1 ratio), using a random number table, into two groups: a Baduanjin group and a conventional treatment group. The Baduanjin group will be subjected to the Baduanjin exercise in addition to the conventional treatment therapy. Participants' exercise programs will be implemented for 4 weeks (5 days a week). All participants will be assessed at baseline, and after two and 4 weeks of treatment. The surface electromyography results of the bilateral erector spinae, tibialis anterior, and peroneus longus will be the primary outcomes, while the balance function under different conditions and the level of FAI in daily life measured using the Cumberland Ankle Instability Tool will be the secondary outcomes. Ethics and Dissemination: The trial has been approved by the Research Ethical Committee of Dongzhimen Hospital, the First Affiliated Hospital of Beijing University of Chinese Medicine (no. DZMEC-KY-2019-18), and it will follow the principles of the Consolidated Standards of Reporting Trials statements as well as the Declaration of Helsinki. The findings of this study will be submitted for publication in peer-reviewed journals. The results will also be disseminated to the participants via phone calls or e-mail. Trial registration: Chinese Clinical Trial Register ID: ChiCTR1900021939 (March 17, 2019). http://www.chictr. org.cn/.
Future Challenges of Covid-19 and Oral Manifestations in Daily Dental Practice: A Literature Review

Objective: Some patients reportedly present with oral manifestations of coronavirus disease 2019 (Covid-19). It is unknown if this is due to the virus itself or a side effect of treatment; however, severe acute respiratory syndrome coronavirus 2 has been shown to have a predilection for angiotensin-converting enzyme receptors that are present in the respiratory tract, oral mucosa, tongue, and salivary glands, causing alterations in taste and smell. Therefore, the objective of this review was to present the future challenges of Covid-19 and oral manifestations in daily dental practice through a literature review. Materials and Methods: Scientific evidence in the databases Scopus and PubMed was searched using the Boolean operators. Articles published in Spanish and English between January and December 2020 were included. Results: Of the 89 articles found in Scopus, 69 were of the open access type and 20 were in the “others” category; only 22 scientific articles were found in PubMed. Conclusion: It is important to take into account these clinical manifestations such as loss of taste and smell in order to detect the disease. Good oral hygiene is also recommended as a preventive measure to reduce viral load, which considerably reduces the probability of infecting other people who are in contact with the infected patient.
Dental-craniofacial Characteristics of Southern Vietnamese People with Well-balanced Face on Cephalometric Films and Its Comparison with Caucasians and Northern Vietnamese Population

Objectives: The objective of this study was to evaluate the dental-craniofacial measurements of the Southern Vietnamese people aged 18 to 25 with well-balanced face on cephalometric films. Materials and Methods: This cross-sectional study included 60 cephalometric tracings of students (30 males, 30 females). The cephalometric measurements were made on 34 angles, 26 distances, and 4 ratios of skeletal, dental, and soft tissue cephalometric analysis. The mean and standard deviation (SD) of the dental-craniofacial measurements were calculated and compared among male and female subjects and with Caucasian and the Northern Vietnamese population. Results: Among the Southern Vietnamese cephalometric tracing samples, the majority of the linear measurements were smaller in female than in male, while the angular and ratio measurements showed no significant difference. When compared with Caucasians, the cranial fossa lengths, the vertical facial heights, the lengths of maxilla and mandible, and the facial convexity of the Southern Vietnamese people were significantly smaller (P < 0.01), while the upper and lower incisors protrusion, and lip protrusion were larger (P < 0.01). The maxillary and mandibular protrusions, and mandibular rotational patterns were similar between these two groups. When compared with the Northern Vietnamese population, the mandibular plane angle and the upper and lower incisor protrusion of the Southern Vietnamese people were significantly larger (P < 0.05). Conclusions: The dental-craniofacial measurements of the Southern Vietnamese people were different among male and female, and different than those of Caucasians and Northern Vietnamese population. Such differences should be taken into account when considering orthodontic and orthognathic treatment strategies.
The Effect of Locus of Control, Professionalism and the Seriousness Level of Violation on the Intention of Whistleblowing at Office for Management of Regional Revenue, Finance and Assets of Bali Province

Whistleblowing is a disclosure by organizational members about illegal, immoral, or illegal practices that can influence an action. This action is very important for everyone in the organization. The purpose of this study was to obtain empirical evidence regarding the influence of locus of control, professionalism, and the level of seriousness towards the intention to do whistleblowing at the Office for Management of Regional Revenue, Finance and Assets (BPKAD) Bali Province. The sample was determined using a non-probability sampling method using purposive sampling technique, obtained 135 samples at the BPKAD office of Bali Province. The data analysis technique used is multiple linear regression. Based on the research results, it can be ignored that locus of control, professionalism, and seriousness have a positive effect on the intention to do whistleblowing. This research provides benefits to all Civil Servants (PNS) at BPKAD Bali Province in terms of increasing the intensity of whistleblowing.
Application of SWAT in Hydrological Simulation of Complex Mountainous River Basin (Part II: Climate Change Impact Assessment)

This study aims at analysing the impact of climate change (CC) on the river hydrology of a complex mountainous river basin—the Budhigandaki River Basin (BRB)—using the Soil and Water Assessment Tool (SWAT) hydrological model that was calibrated and validated in Part I of this research. A relatively new approach of selecting global climate models (GCMs) for each of the two selected RCPs, 4.5 (stabilization scenario) and 8.5 (high emission scenario), representing four extreme cases (warm-wet, cold-wet, warm-dry, and cold-dry conditions), was applied. Future climate data was bias corrected using a quantile mapping method. The bias-corrected GCM data were forced into the SWAT model one at a time to simulate the future flows of BRB for three 30-year time windows: Immediate Future (2021–2050), Mid Future (2046–2075), and Far Future (2070–2099). The projected flows were compared with the corresponding monthly, seasonal, annual, and fractional differences of extreme flows of the simulated baseline period (1983–2012). The results showed that future long-term average annual flows are expected to increase in all climatic conditions for both RCPs compared to the baseline. The range of predicted changes in future monthly, seasonal, and annual flows shows high uncertainty. The comparative frequency analysis of the annual one-day-maximum and -minimum flows shows increased high flows and decreased low flows in the future. These results imply the necessity for design modifications in hydraulic structures as well as the preference of storage over run-of-river water resources development projects in the study basin from the perspective of climate resilience.
Probiotic Supplementation Improved Acute Anterior Uveitis of 3-Year Duration: A Case Report

Patient: Female, 18-year-old Final Diagnosis: Autoimmune uveitis Symptoms: Anterior phlogosis • recurrent eye redness Medication: — Clinical Procedure: Best-corrected visual acuity • fundus examination • intraocular pressure measurment • slit lamp examination • spectral domain OCT (SD-OCT) Specialty: Ophthalmology Objective: Unusual setting of medical care Background: Uveitis is a clinical condition characterized by acute blurry vision related to an inflammation of the uvea. Gut microbiome dysbiosis can influence the prognosis of uveitis by inducing a loss of intestinal immune homeostasis leading to a lower activation threshold of the immune cells. This promotes a pro-inflammatory response resulting in reactivation of the disease. This is the case report of a 21-year-old woman with a 3-year history of acute anterior uveitis (AAU) of the right eye, who responded favorably to probiotic dietary supplementation. Case Report: A 21-year-old woman, previously unknown to our Ophthalmology Unit, presented with ocular pain and redness. Three years ago, she had been diagnosed with monolateral AAU in the right eye. Her medical and family histories were unremarkable. After a complete clinical evaluation, we decided to start a combination treatment protocol with continuous use of probiotics and the use of ocular steroids only during an exacerbation of the condition. To monitor the trend of the disease, she underwent a monthly clinical examination for the following year. During this period, we observed a decrease in ocular inflammation with a gain in the primary outcome (best-corrected visual acuity), and the steroids and atropine were discontinued for the following months. Conclusions: This case report describes a patient with a 3-year history of AAU, who responded well to a combination treatment of dietary probiotic supplementation and steroids, demonstrating that probiotics can reduce recurrences of AAU.
Polynomial-Time in PDDL Input Size: Making the Delete Relaxation Feasible for Lifted Planning

Polynomial-time heuristic functions for planning are commonplace since 20 years. But polynomial-time in which input? Almost all existing approaches are based on a grounded task representation, not on the actual PDDL input which is exponentially smaller. This limits practical applicability to cases where the grounded representation is "small enough". Previous attempts to tackle this problem for the delete relaxation leveraged symmetries to reduce the blow-up. Here we take a more radical approach, applying an additional relaxation to obtain a heuristic function that runs in time polynomial in the size of the PDDL input. Our relaxation splits the predicates into smaller predicates of fixed arity K. We show that computing a relaxed plan is still NP-hard (in PDDL input size) for K>=2, but is polynomial-time for K=1. We implement a heuristic function for K=1 and show that it can improve the state of the art on benchmarks whose grounded representation is large.
Stargazing: The Effect of Superstar CEOs on Competitors’ Behavior

U.S. corporate CEOs are rewarded by the media through a superstar system, whereby few CEOs reap the majority of media awards and attention. Prior literature documents that the corporate superstar system has a negative impact on the shareholders of superstar CEO firms, as superstar CEOs tend to shift their focus toward lucrative personal interests after winning awards. This study examines the effects of the corporate superstar system on competitors of superstar CEOs. Consistent with social psychology’s upward social comparison theory, we document that competing CEOs exhibit a more optimistic tone in conference calls and are more likely to overinvest after superstar CEOs win awards. In addition, after superstar CEOs win awards, competing CEOs engage in behaviors likely to attract media attention and/or temporarily boost stock prices, to the detriment of long-term shareholder value. The results are strongest for CEOs who share the most connections with superstar CEOs, and are weakest for firms with strong corporate governance. Our findings provide new evidence of the costs to shareholders of a competitive media-driven system of rewarding CEOs.
Reinforced Learning for History Selection in Machine Reading Comprehension

Multi-turn interactions have frequently occurred in the dialogue and question answering systems, where the current query often refers to the conversation context. Thus modeling the context becomes a critical step for the task of multi-turn machine reading comprehension (MRC). To utilize the context, traditional methods rely on modeling the whole context as input, which may be confused by the irrelevant parts that appeared in the dialogue history. To alleviate the problem, in this paper, we employ a reinforcement learning based method to select the related conversation history to maximize the MRC model performance. We conduct extensive experiments on QuAC dataset, a large multi-turn MRC dataset, to examine the efﬁciency and effectiveness of our method.
Ice storage characteristics of cultured silver carp

Cultured silver carp (Hypopthalmichthys molitrix 800-1000 g) was stored in ice (fish to ice ratio 1:1) in a plywood box insulated with one inch thick expanded polystyrene and subjected to detailed examination of quality by chemical, microbiological and organoleptic evaluation at regular intervals to assess the storage life in good acceptable form. Alpha-amino nitrogen, non-protein nitrogen and pH values showed no positive correlation as spoilage index. Total volatile base nitrogen was not high at the end of the storage period although the fish became unacceptable during the period. There was steep decrease in total bacterial count during initial stages of storage and then increased steadily on further storage. Organoleptic evaluation of raw and cooked meat revealed that fish was in good acceptable form up to 14 days in ice.
SUSTAINABILITY INDICATORS FOR HOSPITALITY SMES : APPLICATION TO PORTUGUESE CONTEXT

Tourism has been a fundamental pillar for the development of the Portuguese economy and has supported and stimulated new opportunities. However, for small and medium enterprises (SMEs) in the hospitality sector, and given their specific characteristics, there are no specific indicators to monitor sustainability, and they are only based on existing generic models such as ETIS, WTO, and Green Globe. Given the complexity of the indicators in these models and their comprehensive vision, it makes it difficult for hospitality SMEs that have limited resources S. Silveira; J. Ramos; O. Silva; F. Almeida
ASSESSMENT OF ENVIRONMENTAL AND CULTURAL VALUES OF JARMUTA HILL IN SZCZAWNICA (POLISH CARPATHIANS)

The aim of this article is to present the history and the current condition of Jarmuta Hill, situated in Szczawnica (Małe Pieniny Range, Western Carpathians in southern Poland) in relation to its environmental and cultural values. Authors have presented the hill on the background of Pieniny region as an intricate object where cultural heritage intertwines with natural values. It is also an important testimony to the biological and geological structure, where cultural values are of great significance, as traces of human activity date back to medieval times.
Dynamics near Free Surfaces and the Glass Transition in Thin Polymer Films: A View to the Future

The past 20 years have seen a substantial effort to understand dynamics and the glass transition in thin polymer films. In this Perspective, we consider developments in this field and offer a consistent interpretation of some major findings. We discuss recent experiments that directly measure mobility at or near the surface of glassy polymers. These experiments indicate that enhanced mobility near the free surface can exceed bulk mobility by several orders of magnitude and extend for several nanometers into the bulk polymer. Enhanced mobility near the free surface allows a qualitative understanding of many of the observations of a reduced glass transition temperature Tg in thin films. For thin films, knowledge of Tg by itself is less useful than for bulk materials. Because of this, new experimental methods that directly measure important material properties are being developed.
Uncertainty Principles of Encoding GANs

The compelling synthesis results of Generative Adversarial Networks (GANs) demonstrate rich semantic knowledge in their latent codes. To ob-tain this knowledge for downstream applications, encoding GANs has been proposed to learn encoders, such that real world data can be encoded to latent codes, which can be fed to generators to reconstruct those data. However, despite the theoretical guarantees of precise reconstruction in previous works, current algorithms generally reconstruct inputs with non-negligible deviations from inputs. In this paper we study this predica-ment of encoding GANs, which is indispensable research for the GAN community. We prove three uncertainty principles of encoding GANs in practice: a) the ‘perfect’ encoder and generator cannot be continuous at the same time, which implies that current framework of encoding GANs is ill-posed and needs rethinking; b) neural networks cannot approximate the underlying encoder and generator precisely at the same time, which explains why we cannot get ‘perfect’ encoders and generators as promised in previous theories; c) neural networks cannot be stable and accurate at the same time, which demonstrates the difﬁculty of training and trade-off between ﬁdelity and disentanglement encountered in previous works. Our work may eliminate gaps between previous theories and empirical results, promote the understanding of GANs, and guide network designs for follow-up works.