Miracle-dz/UniFAR-FTUs huggingface dataset:
An Open-source Testbed for IoT Systems

: A research team that wants to validate a new IoT solution has to implement a testbed. It is a complex step since it must provide a realistic environment, and this may require skills that are not present in the team. This paper explores the requirements of an IoT testbed and proposes an open-source solution based on low-cost and widely available components and technologies. The testbed implements an architecture consisting of a collector managing several edge devices. Security levels and duty-cycle are tunable depending on the speciﬁc application. After analyzing the testbed requirements, the paper illustrates a template that uses WiFi for the link layer, HTTPS for structured communication, an ESP8266 board for edge units, and a RaspberryPi for the collector.
Strategic planning of transportation infrastructure networks with case studies

This paper discusses necessary qualitative and quantitative improvements in transport infrastructure networks and analyzes travel behavior and origin-destination situations. This paper studies idea about the re-planning of transportation infrastructures theoretically and implements a case study strategy that applies the gravity model and graph technique. Additionally, it has a mathematical model that assists in designing traffic flow in new streets, sidewalks, plazas, and spaces, while suggesting new urban land-use policies and transportation infrastructure-locating techniques. This work considers the planning of ground, railroad, maritime, and air transportation to build a comprehensive system in the urban master planning process. It prioritizes public transportation and suggests necessary geometrical adjustments to upgrade the situation of the infrastructure and prepare Chabahar city for its strategic and oceanic role. The outcome in geometric corrections in sight distance and transverse and longitudinal curves in streets, sidewalks, and squares will assist cities in the Silk Road project environmentally and make the region attractive to tourists and investors' eyes.
Abracadabra

country lying north of this was ruled by some Velirs (petty chieftains), and a little to the east the land was occupied by Kongus. That the Kongus occupied the interior of the land is justified by the Pathikam of Silappadikaram, and the boundaries of the Kongunadu are as follows r In the north Talaimalai (in the Satyamangalam Taluk of the Coimbatore district near the boundary of the Mysore State), in the south Vaikavfir (in Palni Hills), in the east Kulitalai (in the Trichy district), and in the west the Western Ghats. The Kongunadu was governed by a line of kings named K6sar, and they are often mentioned in Tamil classical literature. They are famous for their Sati/a. In Aham they are often mentioned as— Onrumolik kdsar. (196.) (K6sar that always speak the truth.) Vaymoji nilaiiya senvilarigu nallisai Valarighelu Kosar. (205.) (K6sar, whose fame for speaking the truth has reached the heaven), etc. Again, Aham (262) has a reference to a story in which a Kosar excused a man who committed a serious crime because he spoke the truth. Thus we see that they not only speak the truth, but also have a high regard for Satya. The Kosars of Kongu are also of sufficient importance in the history of Tamil.aham to deserve special mention in the inscription of Asdka. Thus I identify the Satyaputra with the Kosars of Kongunadu. T. N . SuBRAMANIAM.
Facile and Quantitative Method for Estimating the Isolation Degree of Cellulose Nanocrystals (CNCs) Suspensions

The isolation degree of cellulose nanocrystals (CNCs) suspensions calculated from the amount of sediments obtained with the centrifugation method can be estimated with turbidimetry, surface charge and dispersion analysis of the CNCs suspension. Three different types of raw cellulosic materials were used and carried out with an acid hydrolysis and mechanical disintegration. As the number of high-pressure homogenizer treatments increased, the isolation degree of CNCs from microcrystalline cellulose (MCC) increased from 2.3 to 99.6%, while the absorbencies from turbidimetric measurement of the CNCs suspension decreased, from 2.6 to 0.1 Abs units. Furthermore, the surface charges based on zeta potential measurements of the CNCs suspensions increased from −34.6 to −98.7 mV, but the heights of sediments from the CNCs suspensions were reduced, from 4.01 to 0.07 mm. Similar results were obtained for CNCs from softwood pulp (SWP) and cotton pulp (CP). These results show a direct correlation between yield, turbidity, surface charge and sedimentation of CNCs suspensions. Their correlation indices (0.9) were close to a maximal value of 1. This approach can be suggested as a facile and rapid estimation method for CNCs manufacturing process.
Post-acquisition CO2 Inhalation Enhances Fear Memory and Depends on ASIC1A

A growing body of evidence suggests that memories of fearful events may be altered after initial acquisition or learning. Although much of this work has been done in rodents using Pavlovian fear conditioning, it may have important implications for fear memories in humans such as in post-traumatic stress disorder (PTSD). A recent study suggested that cued fear memories, made labile by memory retrieval, were made additionally labile and thus more vulnerable to subsequent modification when mice inhaled 10% carbon dioxide (CO2) during retrieval. In light of this finding, we hypothesized that 10% CO2 inhalation soon after fear acquisition might affect memory recall 24 h later. We found that both cue and context fear memory were increased by CO2 exposure after fear acquisition. The effect of CO2 was time-dependent, as CO2 inhalation administered 1 or 4 h after cued fear acquisition increased fear memory, whereas CO2 inhalation 4 h before or 24 h after cued fear acquisition did not increase fear memory. The ability of CO2 exposure following acquisition to enhance fear memory was not a general consequence of stress, as restraining mice after acquisition did not alter cued fear memory. The memory-enhancing action of CO2 may be relatively specific to fear conditioning as novel object recognition was impaired by post-training CO2 inhalation. To explore the molecular underpinnings of these effects, we tested if they depended on the acid-sensing ion channel-1a (ASIC1A), a proton-gated cation channel that mediates other effects of CO2, likely via its ability to sense acidosis induced during CO2 inhalation. We found that CO2 inhalation did not alter cued or context fear memory in Asic1a–/– mice, suggesting that this phenomenon critically depends on ASIC1A. These results suggest that brain acidosis around the time of a traumatic event may enhance memory of the trauma, and may thus constitute an important risk factor for developing PTSD. Moreover, preventing peritraumatic acidosis might reduce risk of PTSD.
Marine Polymer-Gels’ Relevance in the Atmosphere as Aerosols and CCN

Marine polymer gels play a critical role in regulating ocean basin scale biogeochemical dynamics. This brief review introduces the crucial role of marine gels as a source of aerosol particles and cloud condensation nuclei (CCN) in cloud formation processes, emphasizing Arctic marine microgels. We review the gel’s composition and relation to aerosols, their emergent properties, and physico-chemical processes that explain their change in size spectra, specifically in relation to aerosols and CCN. Understanding organic aerosols and CCN in this context provides clear benefits to quantifying the role of marine nanogel/microgel in microphysical processes leading to cloud formation. This review emphasizes the DOC-marine gel/aerosolized gel-cloud link, critical to developing accurate climate models.
Gentiana straminea supplementation improves feed intake, nitrogen and energy utilization, and methane emission of Simmental calves in northwest China

Objective Native plants can be used as additives to replace antibiotics to improve ruminant feed utilization and animal health. An experiment was conducted to evaluate the effects of Gentiana straminea (GS) on nutrient digestibility, methane emissions, and energy metabolism of Simmental calves. Methods Thirty-two (5-week-old) male Simmental clves, with initial body weight (BW) of 155±12 kg were fed the same basal diet of concentrates (26%), alfalfa hay (37%), and oat hay (37%) and were randomly separated into four treatment groups according to the amount of GS that was added to their basal diet. The four different groups received different amounts of GS as a supplement to their basal diet during whole experiment: (0 GS) 0 mg/kg BW, the control; (100 GS) 100 mg/kg BW; (200 GS) 200 mg/kg BW; and (300 GS) 300 mg/kg BW. Results For calves in the 200 GS and 300 GS treatment groups, there was a significant increase in dry matter (DM) intake (p<0.01), average daily gain (ADG) (p<0.05), organic matter intake (p<0.05), DM digestibility (p<0.05), neutral detergent fibre (NDF) digestibility (p<0.05), and acid detergent fibre (ADF) digestibility (p<0.05). Dietary GS supplementation result in quadratic increases of DM intake (p<0.01), ADG (p<0.05), NDF intake (p<0.05), and ADF intake (p<0.05). Supplementing the basal diet with GS significantly increased nitrogen (N) retention (p<0.001) and the ratio of retention N to N intake (p<0.001). Supplementing the basal diet with GS significantly decreased methane (CH4) emissions (p<0.01), CH4/BW0.75 (p<0.05) and CH4 energy (CH4-E) (p<0.05). Dietary GS supplementation result in quadratic increases of CH4 (p<0.01) and CH4/DM intake (p<0.01). Compared with 0 GS, GS-supplemented diets significantly improved their gross energy intake (p<0.05). The metabolizable energy and digestive energy intake were significantly greater for calves in the 100 GS and 200 GS calves than for 0 GS calves (p<0.05). Conclusion From this study, we conclude that supplementing calf diets with GS could improve utilization of feed, energy, and N, and may reduce CH4 emissions without having any negative effects on animal health.
Six-Minute Walk Test in Individuals With Unilateral Lower Limb Amputations

Background: The 6-minute walk test (6MWT) is one of the common clinical tests to assess rehabilitation progress and needs in individuals with lower-limb amputation (iLLAs). However, the analysis of this test is mostly limited to the distance parameter. The first aim was to investigate effort intensity and spatiotemporal parameters of 6MWT in iLLAs using inertial measurement units (IMUs) and heart rate (HR) monitor, and second, to assess physical, physiological, and pain-related aspects of fatigue over 6MWT. Methods: Eleven unilateral iLLAs (57.91±15.63 years old) participated in this study. To evaluate HR and spatiotemporal parameters over 6MWT, data were classified using 6 intervals of 1 minute each (I1-I6). The pain level of participants was estimated using the visual analog scale (VAS). Results: Our results showed that the means of normalized HR gradually increased over 6MWT (I1: 61.59±10.73 HRmax%, I6: 70.15±12.26 HRmax%, P = .003). Variability of HR during the first interval of 6MWT was higher than the others (P < .05). The stance ratio of the gait cycle increased over 6MWT (P < .05). Cadence and speed decreased over 6MWT (P < .05). VAS score after 6MWT was significantly higher than before 6MWT (P = .016). Conclusion: In this preliminary study, effort intensity over 6MWT gradually increased because of enhancement of HR. Deterioration of speed and cadence and enhancement of stance ratio over 6MWT imply potential physical aspects of fatigue and instability. Level of Evidence: Level III, retrospective comparative study.
System-of-Systems Architecture Selection: A Survey of Issues, Methods, and Opportunities

System-of-systems (SoSs) architecture concerns the structure of components, their relationships, and their principles and guidelines governing their design and evolution over time. Well-designed architecture is key to manage the SoS complexity, and thus plays a considerable role in the SoS development and evolution. Architecture selection that aims to identify the desired architectures from a large alternative design space is an initial but critical step toward successful architecture design. Decision-makers need scientific methods to identify those better, more informed but perhaps unexpected architecture solutions. However, the unique SoS characteristics such as interdependency and autonomy bring significant challenges to the architecture selection studies. This article identifies seven critical perspectives in SoS architecture selection, including the conceptual framework, evaluation criteria, interdependency, uncertainty, autonomy, dynamic evolution, and computational methods. The available methods, tools, and processes in the SoS and associated domains are reviewed thoroughly regarding each perspective. This review provides a comprehensive understanding of the current research status of SoS architecture selection. It builds a holistic picture that brings the fragmented pieces of the puzzle together. Towards the end, this article presents a series of research directions for future SoS architecture selection studies.
Additive techniques of manufacturing functional products from metal materials

3D processes are one of the most innovative and perspective technologies for the production of machine parts. Currently, this technology is developing very quickly and is becoming more and more competitive for traditional methods of making prototypes and models, as well as for the production of functional products - semi-finished products or finished machine parts. It is used in many areas of life - from medicine and biomechanics, through such industries as: automotive, aviation, film production, to art, jewellery, furniture production and fashion. The paper presents the characteristics of 3D techniques focused on the production of machine parts from metal materials. Selected Laser Sintering (SLS), DMLS - Direct Metal Laser Sintering, SLM - Selective Laser Melting, Laser Cusing, Laser Engineering Net Shaping (LENS), Fused Deposition Modelling (FDM) and Electron Beam Melting (EBM) have been characterized. Metal materials used in the manufacture of products using additive techniques have been presented. The advantages and disadvantages of the presented technologies were highlighted and attention was paid to economic aspects.
Private Interdependent Valuations

We consider the single-item interdependent value setting, where there is a monopolist, $n$ buyers, and each buyer has a private signal $s_i$ describing a piece of information about the item. Each bidder $i$ also has a valuation function $v_i(s_1,\ldots,s_n)$ mapping the (private) signals of all buyers to a positive real number representing their value for the item. This setting captures scenarios where the item's information is asymmetric or dispersed among agents, such as in competitions for oil drilling rights, or in auctions for art pieces. Due to the increased complexity of this model compared to standard private values, it is generally assumed that each bidder's valuation function $v_i$ is public knowledge. But in many situations, the seller may not know how a bidder aggregates signals into a valuation. In this paper, we design mechanisms that guarantee approximately-optimal social welfare while satisfying ex-post incentive compatibility and individual rationality for the case where the valuation functions are private to the bidders. When the valuations are public, it is possible for optimal social welfare to be attained by a deterministic mechanism under a single-crossing condition. In contrast, when the valuations are the bidders' private information, we show that no finite bound can be achieved by any deterministic mechanism even under single-crossing. Moreover, no randomized mechanism can guarantee better than an $n$-approximation. We thus consider valuation functions that are submodular over signals (SOS), introduced in the context of combinatorial auctions in a recent breakthrough paper by Eden et al. [EC'19]. Our main result is an $O(\log^2 n)$-approximation for buyers with private signals and valuations under the SOS condition. We also give a tight $\Theta(k)$-approximation for the case each agent's valuation depends on at most $k$ other signals even for unknown $k$.
Chemical Components of Aqueous Extracts of Melia azedarach Fruits and Their Effects on The Transcriptome of Staphylococcus aureus

Abstract Staphylococcus aureus is the causative agent of numerous and varied clinical infections. Crude aqueous extracts of Melia azedarach fruits inhibit the planktonic growth and initial biofilm formation of S. aureus in a dose-dependent manner. Moreover, the biofilm topologies became sparse and decreased as the concentration of the aqueous extracts increased. RNA-Seq analyses revealed 532 differentially expressed genes (DEGs) after S. aureus exposure to 0.25 g/ml extracts; 319 of them were upregulated, and 213 were downregulated. The majority of DEGs were categorized into abundant sub-groups in the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Finally, untargeted UHPLC-MS/MS analyses of the aqueous extracts of M. azedarach fruits demonstrated a highly complex profile in positive and negative electrospray ionization modes. The extracts primarily consisted of lipids and lipid-like molecules, organic acids and their derivatives, phenylpropanoids, polyketides, organoheterocyclic compounds, and benzenoids annotated by abundant lipid maps and KEGG pathways. Overall, this study provides evidences that the aqueous extracts of M. azedarach fruits can control S. aureus infections and sought to understand the mode of action of these extracts on S. aureus.
Molecular Simulations of Binary Gas Mixture Transport and Separation in Slit Nanopores

We propose a new method to simulate the gas mixture transport and separation in slit nanopores. The method is based on the random removal of molecules from the permeate side in the dual control volume–grand canonical molecular dynamics (DCV-GCMD) method. Each step in the random removal is independent of the previous steps. The conventional method, DCV-GCMD, simulates the gas mixture in control volumes based on the chemical potential of each component, in which the gas compositions have to be known in advance and kept constant. However, the transport process affects the composition of the produced gas mixture due to selective adsorption in the nanopores. This process has been modeled iteratively in the literature. We propose an alternative method to calculate the composition in the permeate side directly; in our approach, the computational efficiency is improved by an order of magnitude compared to the iterative method. Transport of gas mixtures of CH4/He and CO2/CH4 is investigated in graphene, graphite, .
Catastrophic antiphospholipid syndrome (Asherson’s syndrome) caused by a suspected intestinal neuroendocrine tumor: a case report

Background. Every year, the number of people with rare forms of the disease is increasing worldwide. One of these is the catastrophic antiphospholipid syndrome — Asherson’s syndrome. To date, it is being actively studied, but the pathophysiological mechanisms of its development have not yet been fully investigated. Our work is the first attempt to describe Asherson’s syndrome on the example of a clinical case in Ukraine. Objective: to determine the factors and mechanisms that led to the death of a patient with Asherson’s syndrome in Ukraine. Materials and methods. The structural-logical analysis and the clinical-statistical method were used. Results. Based on clinical and laboratory criteria, our medical team established a clinical diagnosis of systemic lupus erythematosus complicated by a catastrophic antiphospholipid syndrome (CAPS). Despite treatment with glucocorticoids and anticoagulants according to international guidelines, the patient died. The autopsy results showed that the immediate cause of death was a large blood clot that blocked the pulmonary artery and its main branches. Histological examination revealed thrombosis of small vessels of the kidneys and brain; a neuroendocrine tumor (G2; pT3pNxpM1b) of the small intestine with metastases to the liver, brain, myocardium and kidneys was suspected. An additional immunohistochemical study was performed to clarify the histological diagnosis. The morphological picture and results of immunohistochemical study mostly correspond to the moderately differentiated (G2) non-keratinizing squamous cell carcinoma (ICD-O code: 8070/3) with damage to the walls of the small intestine, liver, lungs, kidneys, myocardium and brain. Conclusions. These data emphasize that despite the rarity of Asherson’s syndrome, it is always necessary to consider its probability in the presence of signs of multiple thrombosis and multiple organ failure. Because its development is the result of serious diseases, including connective tissue diseases, malignancies, infections, the etiotropic and pathogenetic treatment can prevent the development of CAPS and death.
Impact of Tailored Network Splitting and Community Features' Change Rates on Prediction Accuracy in Dynamic Social Networks

: With its various real-life applications, predicting community evolution is a challenging task in the ﬁeld of social network analysis. In this paper, we analyze communities’ evolution prediction accuracy in dynamic social networks. The proposed approach combines two key concepts of the process, aiming to enrich the prediction model by additional information that could improve the results: (1) a tailored network splitting that results in snapshots of different periods rather than a static one, and (2) the change rates of communities’ features that characterize them over time instead of absolute values of features. Our experiments on four real-world social networks conﬁrm that community evolution prediction can be achieved with a very high accuracy by using both tailored network splitting as a ﬁrst step of prediction process and change rates of features.
Stress Analysis on Tubesheet Referring to TEMA Standard

A heat exchanger is a device used to transfer heat without mass transfer. The equipment must be designed according to established standards. The standard that is widely used is the standardissued by TEMA (Tubular Exchanger Manufacturer Association). The results of the design of theheat exchanger with these standards are considered less efficient in terms of the material. Theefficiency of the material used can be analyzed by stress analysis on the components that withstand the force, and one of these components is the tube sheet. Stress analysis on tube sheets can use finite element-based software. The results of the research show that the tube sheet design that refers to the TEMA standard is relatively safe because the maximum von Mises stress is below the yield strength of the material used, while the overdesign value is rather significant because the average von Mises stress is also far below the yield strength of the material used.
One-pot synthesis of polyoxomolybdate anion intercalated layered double hydroxides and their application in ultra-deep desulfurization of fuels under mild conditions

The Lindqvist anion [Mo6O19]2− was in situ intercalated into layered double hydroxides (LDHs) via a one-pot hydrothermal method. The heterogeneous catalyst was applied in ultra-deep desulfurization of fuels under mild conditions, and exhibited high activity for dibenzothiophene (DBT), benzothiophene (BT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT). The above sulfur-containing compounds could be completely transformed into their corresponding sulfones under the stoichiometric O/S molar ratio (O/S molar ratio = 2). Furthermore, the catalyst could be easily recovered and reused at least 7 times without an obvious decrease in performance. The possible desulfurization mechanism was also studied in detail.