Miracle-dz/UniFAR-FTUs huggingface dataset:
Hybrid Mixed-Membership Blockmodel for Inference on Realistic Network Interactions

This work proposes a novel hybrid mixed-membership blockmodel (HMMB) that integrates three canonical network models to capture the characteristics of real-world interactions: community structure with mixed-membership, power-law-distributed node degrees, and sparsity. This hybrid model provides the capacity needed for realism, enabling control and inference on individual attributes of interest such as mixed-membership and popularity. A rigorous inference procedure is developed for estimating the parameters of this model through iterative Bayesian updates, with targeted initialization to improve identifiability. For the estimation of mixed-membership parameters, the Cramér-Rao bound is derived by quantifying the information content in terms of the Fisher information matrix. The effectiveness of the proposed inference is demonstrated in simulations where the estimates achieve covariances close to the Cramér-Rao bound while maintaining good truth coverage. We illustrate the utility of the proposed model and inference procedure in the application of detecting a community from a few cue nodes, where success depends on accurately estimating the mixed-memberships. Performance evaluations on both simulated and real-world data show that inference with HMMB is able to recover mixed-memberships in the presence of challenging community overlap, leading to significantly improved detection performance over algorithms based on network modularity and simpler models.
Endophthalmitis: Experience from a Tertiary Eye Care Center

Endophthalmitis is a devastating ocular inflammatory process that can lead to blindness. In endophthalmitis, there is inflammation of the vitreous cavity along with the retinal and uveal components of the eye. [1] In the vast majority of cases of endophthalmitis, inflamma‐ tion is triggered by an infectious agent. [1, 2] The source of such infectious agent could be an exogenous such as following trauma or after an eye surgery (Figures 1 & 2). Eye surgeries may be either intraocular (such as cataract, glaucoma, retina) or extra-ocular such as refrac‐ tive or muscle surgery. Post-operative endophthalmitis could be either sterile or infectious. The infectious agent encountered following the eye surgery or trauma is usually the organ‐ isms harboring the outer surface of the eye. [2, 3] Bacterial infections are the most common cause of post-operative endophthalmitis, and Gram-positive isolates account for the majori‐ ty of these cases. [2] Fungal infections may occur, particularly in association with the use of contaminated ocular irrigation fluids. [4, 5] Patients having previous history of glaucoma surgery with thin blebs and penetrating keratoplasty may also be vulnerable to risks of de‐ veloping endophthalmitis. Endogenous endophthalmitis is less common and occur secon‐ dary to hematogenous dissemination and spread from a distant infective source in the body. [2, 3, 6, 7] In patients with endogenous endophthalmitis, some of the predisposing risk fac‐ tors may include diabetes, cardiac disease, and malignancy. [2, 3] The common foci of infec‐ tion may be urinary tract infection, septic arthritis, pneumonia, and endocarditis. Less common causes of endogenous endophthalmitis include orbital and periorbital cellulitis and in rare cases facial cellulitis. [8] Recently, endophthalmitis was a major reason for eviscera‐ tion among the 187 cases reported from a tertiary eye care center. [9]
Simulating the Impact of Wind Production on Locational Marginal Prices

This paper analyzes the impact of wind production on the locational marginal prices of a fully competitive pool-based electricity market. Wind productions are modeled as negative loads and characterized by historical data records. The analysis pertains to the structural relationship between wind production and locational marginal prices, and disregards the collateral effect of strategic offering. The study presented allows a statistical characterization of locational marginal prices as a function of the statistical data of the wind plants and the structure of the considered electric energy system.
骨科教程 成人创伤：在夜间也获得成功

在过去十多年中对肌肉骨骼急性损伤的治疗，出现了一个戏剧性的变化。 以前强调所谓的“早期全面治疗”，主张立即彻底修复所有的损伤，而现在转为提倡在多发性创伤时进行“控制损害的骨科”。 在这种新的治疗模式中，骨折的最终修复可延迟至患者的生理状态稳定；
Rapid visual grouping and figure – ground processing using temporally displays

We examine the time course of visual grouping and figure–ground processing. Figure (contour) and ground (random-texture) elements were flickered with different phases (i.e., contour and background are alternated), requiring the observer to group information within a pre-specified time window. It was found this grouping has a high temporal resolution: less than 20 ms for smooth contours, and less than 50 ms for line conjunctions with sharp angles. Furthermore, the grouping process takes place without an explicit knowledge of the phase of the elements, and it requires a cumulative build-up of information. The results are discussed in relation to the neural mechanism for visual grouping and figure–ground segregation. 2010 Published by Elsevier Ltd.
Concordance Among Holdouts

Holdout problems prevent decentralized aggregation of complementary goods, but the coercion required to overcome holdout may encourage abuse and violate fairness standards. We propose second-best efficiency, abuse-prevention, and fairness criteria for procedures intended to reduce holdout. Our criteria are jointly satisfied by a class of “Concordance” procedures. In these procedures, the prospective buyer makes a take-it-or-leave-it offer to the group of sellers, and the sellers use an efficient collective choice mechanism to decide as a group whether to accept the buyer’s offer. In the case of sale, the buyer’s offer is divided among the sellers in a fashion independent of individual sellers’ actions. Each seller retains the option to receive, in the event of sale, her share of the offer (without making any additional payments) in exchange for not influencing the collective decision. Our approach is applicable in a range of contexts including land assembly, spectrum aggregation, corporate acquisitions, and patent pool formation.
Endothelial-Podocyte Crosstalk: The Missing Link Between Endothelial Dysfunction and Albuminuria in Diabetes

Although diabetes is the most common cause of end-stage renal disease (ESRD) worldwide, most people with diabetic nephropathy will never develop ESRD but will instead die of cardiovascular (CV) disease (CVD). The first evidence of kidney injury in diabetes is often microalbuminuria, itself also an independent risk marker for CVD. Although the two processes are closely associated, the recent failure of antialbuminuric therapies to affect CV outcomes has encouraged a reconsideration of how albuminuria may occur in diabetes and how increased urinary albumin excretion may be indicative of CV risk. The relationship between CVD and urinary albumin content (even within the normal range) is widely considered to reflect the common underlying pathology of endothelial dysfunction. At the same time, recent years have witnessed a growing appreciation that diabetic albuminuria commonly arises from damage to glomerular podocytes, specialized epithelial cells acting as the final barrier to macromolecular flow into the urinary filtrate. These superficially discordant paradigms can be assimilated by the emerging concept of endothelial-podocyte crosstalk across the glomerular filtration barrier, whereby the actions of one type of cell may profoundly influence the function of the other. The bidirectional nature of this paracrine network is illustrated by the actions of the vascular endothelial growth factor-A (VEGF-A)/VEGF receptor-2 and activated protein C systems, among others. Identification of novel mediators of endothelial-podocyte crosstalk may lead to the development of more effective treatments for diabetic nephropathy and its sequelae.
Behaviour of roach (Rutilus rutilus L.) altered by Ligula intestinalis (Cestoda: Pseudophyllidea): a field demonstration

SUMMARY 1. We studied the influence of a cestode parasite, the tapeworm Ligula intestinalis (L.) on roach (Rutilus rutilus L.) spatial occupancy in a French reservoir (Lake Pareloup, Southwest of France). 2. Fish host age, habitat use and parasite occurrence and abundance were determined during a 1 year cycle using monthly gill-net catches. Multivariate analysis [generalized linear models (GLIM)], revealed significant relationships (P < 0.05) between roach age, its spatial occupancy and parasite occurrence and abundance. 3. Three-year-old roach were found to be heavily parasitized and their location toward the bank was significantly linked to parasite occurrence and abundance. Parasitized fish, considering both parasite occurrence and abundance, tended to occur close to the bank between July and December. On the contrary, between January and June no significant relationship was found. 4. These behavioural changes induced by the parasite may increase piscivorous bird encounter rate and predation efficiency on parasitized roach and therefore facilitate completion of the parasite’s life cycle.
Visual Analytics for Root DNS Data

The analysis of vast amounts of network data for monitoring and safeguarding a core pillar of the internet, the root DNS, is an enormous challenge. Understanding the distribution of the queries received by the root DNS, and how those queries change over time, in an intuitive manner is sought. Traditional query analysis is performed packet by packet, lacking global, temporal, and visual coherence, obscuring latent trends and clusters. Our approach leverages the pattern recognition and computational power of deep learning with 2D and 3D rendering techniques for quick and easy interpretation and interaction with vast amount of root DNS network traffic. Working with real-world DNS experts, our visualization reveals several surprising latent clusters of queries, potentially malicious and benign, discovers previously unknown characteristics of a real-world root DNS DDOS attack, and uncovers unforeseen changes in the distribution of queries received over time. These discoveries will provide DNS analysts with a deeper understanding of the nature of the DNS traffic under their charge, which will help them safeguard the root DNS against future attack.
A coset weight count that proves that the simplex codes are not optimal for error correction

The number of cosets of weight 2/sup k-2/ or less are determined for the [2/sup k/-1, k, 2/sup k-1/] simplex code and a [2/sup k/-1, k, 2/sup k-1/-1] code obtained by a simple modification of the simplex code. The result proves that the [2/sup k/-1, k] simplex codes are not optimal for error correction on the binary symmetric channel with small bit error probability, p, (for k/spl ges/3). A proof that the modified code is better for all p, 0
Improve Building Façades in Open Lidar Data Using Ground Imagery

Recent advances in open data initiatives allow us to free access to a vast amount of open LiDAR data in many cities. However, most of these open LiDAR data over cities are acquired by airborne scanning, where the points on façades are sparse or even completely missing due to the viewpoint and object occlusions in the urban environment. Integrating other sources of data, such as ground images, to complete the missing parts is an effective and practical solution. This paper presents an approach for improving open LiDAR data coverage on building façades by using point cloud generated from ground images. A coarse-to-fine strategy is proposed to fuse these two different sources of data. Firstly, the façade point cloud generated from terrestrial images is initially geolocated by matching the SFM camera positions to their GPS meta-information. Next, an improved Coherent Point Drift algorithm with normal consistency is proposed to accurately align building façades to open LiDAR data. The significance of the work resides in the use of 2D overlapping points on the outline of buildings instead of limited 3D overlap between the two point clouds and the achievement to a reliable and precise registration under possible incomplete coverage and ambiguous correspondence. Experiments show that the proposed approach can significantly improve the façades details of buildings in open LiDAR data and improving registration accuracy from up to 10 meters to less than half a meter compared to classic registration methods.
Product Engagement and Identity Signaling: The Role of Likes in Social Commerce for Fashion Products

Abstract Motivated by a lack of understanding of user engagement with identity-relevant products, we distinguish between two mechanisms by which existing likes affect subsequent engagement: observational learning (OL) by observing the number of existing likes, and social influence (SI) by observing the likes of one’s social connections. Using a novel panel dataset of 930 handbags, we find that, contrary to most OL studies, OL has a negative effect on subsequent likes, and the effect is mitigated by SI. By contrast, OL has a positive effect on clicks, and the effect diminishes as SI increases. We attribute our findings to identity signaling.
A reconfigurable test platform to experiment with wireless heterogeneous networks in a laboratory

A large number of wireless technologies and networks have been introduced in the telecommunication world during the last few years. Many protocols and applications (e.g., TCP, VoIP) are not specifically designed for such a variety of wireless protocols; therefore they require a deeper analysis to understand their behaviour over those radio protocols. Performance analysis in close-to-real environment represents a valid method to evaluate and model the behaviour of such protocols and applications for their improvement. This paper presents a wireless heterogeneous testbed that allows experimentation of WLANs and cellular networks in a laboratory. The paper describes also the assessment and the calibration of the testbed. It presents an extensive comparison with a commercial 3G network. Finally, the paper also presents two case studies in order to highlight the benefits of conducting experimental research in an in-lab fully controlled platform.
THE EFFECT OF NIMODIPINE ON A RAT MODEL OF PACLITAXEL – INDUCED PERIPHERAL NEUROPATHY IONU

Patients undergoing chemotherapy often exhibit painful peripheral neuropathy as a side effect. Most neurons, including sensory neurons [6] express multiple types of voltage-gated calcium channels (VGCC), thus suggesting a modulatory role of VGCC in pain transmission. We evaluated the effect of nimodipine, a L-type calcium channel blocker, on a paclitaxelinduced peripheral neuropathy model in rats. We used male Wistar rats (N = 60), divided into 6 equal groups: control (C), paclitaxel (P), paclitaxel and nimodipine 30, 45 and 60 mg/kgbw (N30, N45 and N60), and paclitaxel and gabapentine (G). We assessed the mechanical sensitivity for hyperalgesia and allodynia conditions, and also recorded the motor activity. Starting from day 10 of the treatment, paclitaxel induced statistically different decreases in sensitivity to mechanical stimuli, effect neutralized in the nimodipine and gabapentine groups. The registered results indicate nimodipine’s effectiveness in reversing neuropathic hyperalgesia and allodynia produced by paclitaxel.
SWINDELLS in protein structures A procedure for the automatic determination of hydrophobic cores

An algorithm is described for automatically detecting hydrophobic cores in proteins of known structure. Three pieces of information are considered in order to achieve this goal. These are: secondary structure, side-chain accessibility, and side-chain-side-chain contacts. Residues are considered to contribute to a core when they occur in regular secondary structure and have buried side chains that form predominantly nonpolar contacts with one another. This paper describes the algorithm's application to families of proteins with conserved topologies but low sequence similarities. The aim of this investigation is to determine the efficacy of the algorithm as well as to study the extent to which similar cores are identified within a common topology.
Anti-fatigue-fracture hydrogels

Nanocrystalline domains can be used to create robust anti-fatigue-fracture hydrogels for artificial cartilages and soft robots. The emerging applications of hydrogels in devices and machines require hydrogels to maintain robustness under cyclic mechanical loads. Whereas hydrogels have been made tough to resist fracture under a single cycle of mechanical load, these toughened gels still suffer from fatigue fracture under multiple cycles of loads. The reported fatigue threshold for synthetic hydrogels is on the order of 1 to 100 J/m2. We propose that designing anti-fatigue-fracture hydrogels requires making the fatigue crack encounter and fracture objects with energies per unit area much higher than that for fracturing a single layer of polymer chains. We demonstrate that the controlled introduction of crystallinity in hydrogels can substantially enhance their anti-fatigue-fracture properties. The fatigue threshold of polyvinyl alcohol (PVA) with a crystallinity of 18.9 weight % in the swollen state can exceed 1000 J/m2.
Comparative efficacy of baclofen and lorazepam in the treatment of alcohol withdrawal syndrome

Background: Benzodiazepines (BDZs) have been the treatment of choice for alcohol withdrawal syndrome (AWS); however, they are associated with several side effects and also have abuse potential. In some studies, the use of baclofen has been effective in reducing symptoms of alcohol withdrawal symptoms. Aim: The objective of this study was to compare the efficacy of baclofen and benzodiazepine (lorazepam) in reducing symptoms of AWS. Materials and Methods: It was a single-center, randomized, open-label study. Patients with alcohol dependence syndrome were enrolled in the study and randomized into two groups using computer-generated random table number. Baclofen (experimental group, 10 mg three times a day) and BZDs (control group, lorazepam, 8–12 mg/day in divided doses) were orally administered for reducing symptoms of alcohol withdrawal. Both groups received Vitamin B1 (100 mg/day through intramuscular route) and psychotherapeutic interventions. The severity of alcohol dependence was assessed by using the Severity of Alcohol Dependence Questionnaire, and alcohol withdrawal was assessed with the Clinical Institute Withdrawal Assessment for Alcohol, revised (CIWA-Ar). Results: Sixty-six patients were randomized (baclofen n = 34, benzodiazepine (BZD) group n = 32). Two patients (one patient in each group) had complicated withdrawal symptoms and were dropped from the final analysis. There was a significant reduction in alcohol withdrawal symptoms in both groups. There were no significant differences in CIWA-Ar scores between the two groups. Both the drugs were well-tolerated. Conclusion: Baclofen and lorazepam are comparable in efficacy and tolerability in reducing symptoms of AWS.
Interaction of Te and Se interlayers with Ag or Au nanofilms in sandwich structures

Noble metal nanolayers on flat substrates are often deposited with the use of semiconductor interlayers, which may strongly interact with the noble metal overlayer. We investigated the crystallinity, atomic concentration profile and optical parameters of ≈35 nm-thick silver and gold layers deposited on glass substrates with 2 nm-thick tellurium or selenium interlayers. Our study, based on X-ray reflectometry (XRR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and ellipsometric measurements, showed that using either of these interlayers introduces strain in nanocrystals of both plasmonic films. This, in turn, influences the migration of Se and Te into the metal layers. Selenium atoms migrate both in the silver and gold nanolayers, while tellurium atoms migrate only in silver. The Te concentration curve clearly suggests that this migration is an effect of the segregation of Te atoms in the silver structure. The differences in crystallinity, as well as the migration process, strongly influence the optical parameters of Ag and Au. In the permittivity of Ag deposited on either Te or Se, additional plasmonic bands originating from grain boundary segregation or diffusion occur, while for the Au layer, such resonances were not pronounced. In the permittivity of both materials, the intensity of the interband transition peaks is strongly altered, possibly due to the nano-alloy formation, but more likely due to the microstrain on metal grains.
Li substituent tuning of LED phosphors with enhanced efficiency, tunable photoluminescence, and improved thermal stability

A codoping strategy is advanced to improve luminescence efficiency, emission color tuning, and thermal stability of LED phosphors. Solid-state phosphor-converted white light-emitting diodes (pc-WLEDs) are currently revolutionizing the lighting industry. To advance the technology, phosphors with high efficiency, tunable photoluminescence, and high thermal stability are required. Here, we demonstrate that a simple lithium incorporation in NaAlSiO4:Eu system enables the simultaneous fulfillment of the three criteria. The Li substitution at Al sites beside Na sites in NaAlSiO4:Eu leads to an enhanced emission intensity/efficiency owing to an effective Eu3+ to Eu2+ reduction, an emission color tuning from yellow to green by tuning the occupation of different Eu sites, and an improvement of luminescence thermal stability as a result of the interplay with Li-related defects. A pc-WLED using the Li-codoped NaAlSiO4:Eu as a green component exhibits improved performance. The phosphors with multiple activator sites can facilitate the positive synergistic effect on luminescence properties.
Conjoined-network rendered stiff and tough hydrogels from biogenic molecules

By constructing a conjoined-network, we tackled the challenge in developing stiff and tough hydrogels of biogenic molecules. Hydrogels from biological sources are expected as potential structural biomaterials, but most of them are either soft or fragile. Here, a new strategy was developed to construct hydrogels that were both stiff and tough via the formation of the conjoined-network, which was distinct from improving homogeneity or incorporating energy dissipation mechanisms (double-network) approaches. Conjoined-network hydrogels stand for a class of hydrogels consisting of two or more networks that are connected by sharing interconnection points to collaborate and featured as follows: (i) All the composed networks had a similar or equal energy dissipation mechanism, and (ii) these networks were intertwined to effectively distribute stress in the whole system. As a specific example, a biogenic conjoined-network hydrogel was prepared by electrostatically cross-linking the chitosan-gelatin composite with multivalent sodium phytate. The combination of high compressive modulus and toughness was realized at the same time in the chitosan-gelatin-phytate system. Moreover, these physical hydrogels exhibited extraordinary self-recovery and fatigue resistance ability. Our results provide a general strategy for the design of biocompatible stiff and tough conjoined-network hydrogels due to a variety of potential cross-linking mechanisms available (e.g., electrostatic attraction, host-guest interaction, and hydrogen bonding).