Miracle-dz/UniFAR-FTUs huggingface dataset:
Detecting if LTE is the Bottleneck with BurstTracker

We present BurstTracker, the first tool that developers can use to detect if the LTE downlink is the bottleneck for their applications. BurstTracker is driven by our discovery that the proprietary LTE downlink schedulers running on LTE base stations allocate resources to users in a way that reveals if a user's downlink queue runs empty during a download. We demonstrate that BurstTracker works across Tier-1 cellular providers and across a variety of network conditions. We also present a case study that shows how application developers can use this tool in practice. Surprisingly, with BurstTracker, we find that the LTE downlink may not be the bottleneck for video streaming on several Tier-1 providers, even during peak hours at busy locations. Rather, transparent TCP middleboxes deployed by these providers lead to downlink underutilization, because they force Slow-Start Restart. With a simple workaround, we improve video streaming bitrate on busy LTE links by 35%.
Herbage intake and animal performance of cattle grazing dwarf elaphant grass with two access times to a forage peanut area

Relatively short grazing periods in a pure legume pasture can be an alternative for increasing animal performance in medium-quality tropical pastures. Thus, the aim was to evaluate the herbage intake and animal performance of steers grazing dwarf elephant grass (Pennisetum purpureum Schum. cv. BRS Kurumi) with two access times [2 h (07:00 - 9:00) and 6 h (07:00 - 13:00)] to an area of forage peanut (Arachis pintoi cv. Amarillo). Twelve steers (219 ± 28.8 kg LW) were divided into four groups and assessed during three consecutive grazing cycles, from January to March 2013. The crude protein and neutral detergent fiber contents were 158 and 577 g/kg dry matter (DM) for dwarf elephant grass and 209 and 435 g/kg DM for forage peanut, respectively. The pre-grazing height and leaf mass of dwarf elephant grass and forage peanut were 94 cm and 2782 kg DM/ha and 15 cm and 1751 kg DM/ha, respectively. The herbage intake (mean = 2.7 ± 0.06% LW) and average daily weight gain (mean = 1.16 ± 0.31 kg/day) were similar for both treatments. However, animals with 2-h access to the legume paddock grazed for 71% of the time, whereas those with 6-h access grazed for 48% of the time. The performance of the steers that were allowed to graze forage peanut pasture for 2 h is similar to that of those that were allowed to graze the legume pasture for 6 h.
Hexacyclododecylamines with Sigma-1 Receptor Affinity and Calcium Channel Modulating Ability

Recent research points to the Sigma Receptor (σR) as a possible neuromodulatory system with multi-functional action and σ1Rs have been suggested as a drug target for a number of CNS conditions. Hexacyclododecylamines have shown σ1R activity and provide an advantageous scaffold for drug design that can improve the blood-brain barrier permeability of privileged structures. A series of oxa- and aza- hexaxcyclododecylamines were synthesised and evaluated for sigma-1 receptor activity and voltage-gated calcium channel blocking ability to determine the effect of inclusion of amine containing heterocycles. The compounds had promising σ1R activities (Ki = 0.067 – 11.86 µM) with the aza-hexacyclododecylamines 12, 24 and 27 showing some of the highest affinities (Ki = 0.067 µM, 0.215 µM and 0.496 µM respectively). This confirms, as observed in previous studies, that the aza compounds are more favourable for σ1R binding than their oxa counterparts. The addition of the amine heterocycle showed affinities similar to that of related structures with only two lipophilic binding regions. This indicates that the inclusion of an amine heterocycle into these structures is a viable option in the design of new σ1R ligands. Significant voltage-gated calcium channel blocking ability was also observed for 12, 24 and 27, suggesting a link between σ1R activity and intracellular calcium levels. The σ1R activity and potential effect on other receptor classes and calcium channels could prove beneficial in pharmacological application.
Trade Balance and Exchange-Rate for a Small Open Economy During the EMS: The Hellinic Case 1983:1-1995:12

We are interested on assessing the effectiveness of the Bank of Greece (BoG) exchange rate policy, to achieve the objective of adjusting balance of payments des–equilibrium, during the period 1983:1–1995:12. The traditional theory of the balance of payments adjustment process through exchange rate changes is used for this purpose. We found evidence, first, about the doubtful effectiveness of this policy due to the marginal verification of the critical elasticities condition; second, about the success of the exchange rate policy in the short–run, since the monthly data of bilateral exchange rates (USD, DEM, ITL, FRF, GBP, JPY) of the Hellenic Drachma (GRD) Granger cause the respective trade balances; third, about the significant co–movement in the series which in the long–run, are driven by the same stochastic trend. We are much aware of the tentative nature of these conclusions. However, our findings suggest that the loss of the exchange rate policy was costly in the case of Hellas because an efficient policy sacrificed by the BoG to the European Central Bank (ECB).
Data-driven design for sustainable behavior

Interaction with digital products and interfaces concern more and more of human decision-making and the problems regarding environmental, financial and social sustainability are consequences much due to our behavior. The issues and goals of sustainable development therefore implies how we have to think differently about digital design. In this paper, we examine the adequacy of influencing sustainable behavior with a data-driven design approach, applying a conversational user interface. A case study regarding the United Nation’s goals of technological development and economic distribution was conducted, to see if a hypothetical business with a proof-of-concept digital product could be effective in influencing where companies base their operations. The test results showed a lack of usability and influence, but still suggested a potential with language-based interfaces. Even though the results could not prove anything, we argue that leveraging data analysis to design for sustainable behavior could be a very valuable strategy. A data-driven approach could enable ambitions of profit and user experience to coincide with those of sustainability, within a business organization.
Modularity-based Sparse Soft Graph Clustering

Clustering is a central problem in machine learning for which graph-based approaches have proven their efficiency. In this paper, we study a relaxation of the modularity maxi-mization problem, well-known in the graph partitioning literature. A solution of this relaxation gives to each element of the dataset a probability to belong to a given cluster, whereas a solution of the standard modular-ity problem is a partition. We introduce an efficient optimization algorithm to solve this relaxation, that is both memory efficient and local. Furthermore, we prove that our method includes, as a special case, the Louvain optimization scheme, a state-of-the-art technique to solve the traditional modularity problem. Experiments on both synthetic and real-world data illustrate that our approach provides meaningful information on various types of data.
The Balassa-Samuelson model in general equilibrium with markup variations

This contribution embeds the Balassa-Samuelson hypothesis in a general equilibrium model that combines monopolistic competition and markup variations to examine the determinants of relative prices of nontradables. The model emphasizes the role of markup variations as an important aspect driving relative price movements. Variations in the markup makes fiscal policy non-neutral and provides a strong magnification mechanism for shocks to productivity. The empirical evidence of these predictions are examined by using a panel cointegration framework. On the whole, the econometric findings support theoretical implications, suggesting that our model is more closely in line with data relative to the supply-side Balassa-Samuelson framework that abstracts from variations in the degree of competition.
An Active Secure Group Sharing Structure in Public Cloud Computing

Cloud computing is the absolute vision of computing as a utility, where data owners can remotely store their data. The vital service presents by the Cloud is the Data Storage. On the other hand, it is a difficult task for sharing data in multi-owner mode where group admin and all group members can store and alter the data while preserving data and identity privacy from an untrusted cloud server, due to the regular change of the membership. Hence Secure multi-owner data sharing scheme for dynamic groups in the cloud computing have been projected which absorb addition of group signature and broadcast encryption techniques. However this scheme also accepted some boundaries in terms of competence and security. since multi-owner data storing and sharing in a dynamic surroundings dumps enormous amount of data files in the cloud, which leftovers in cloud for imprecise period of time. The secret information stored may changed by the service providers. To preserve cloud file’s security and privacy, regular removal of unwanted files is required. To resolve this problem we propose new structure which is consistent and Scalable Secure Method to Store and Share Secrete Data for groups in Cloud which named it as MONA which remove unnecessary files mechanically when the predefined time period for sharing specified by data owner has been run out which improve performance of the system in terms of security and efficiency. Also this method decreases the overhead at the time of upload and download file in the cloud. At last proposed method by name Multi Owner Data Sharing Over Cloud (MODOC) declares required efficiency and most importantly security.
Switching LPS to LED Streetlight May Dramatically Reduce Activity and Foraging of Bats

Artificial light at night is considered a major threat to biodiversity, especially for nocturnal species, as it reduces habitat availability, quality, and functionality. Since the recent evolution in light technologies in improving luminous efficacy, developed countries are experiencing a renewal of their lighting equipment that reaches its end-of-life, from conventional lighting technologies to light emitting diodes (LEDs). Despite potential cascading impacts of such a shift on nocturnal fauna, few studies have so far dealt with the impact of the renewal of street lighting by new technologies. Specifically, only one study, by Rowse et al.2016, examined the effects of switching from widely used low pressure sodium (LPS) lamps to LEDs, using bats as biological models. This study was based on a before-after-control-impact paired design (BACIP) at 12 pairs in the UK, each including one control and one experimental streetlight. If Rowse et al. 2016 showed no effect of switching to LEDs streetlights on bat activity, the effects of respective changes in light intensity and spectrum were not disentangled when testing switch effects. Here, we conduct a retrospective analysis of their data to include these covariates in statistical models with the aim of disentangling the relative effects of these light characteristics. Our re-analysis clearly indicates that the switches in spectrum and in intensity with replacement of LPS with LED lamps have significant additive and interactive effects, on bat activity. We also show that bat activity and buzz ratio decrease with increasing LED intensity while an opposite effect is observed with LPS lamps. Hence, the loss or the gain in bat activity when lamp types, i.e., spectrum, are switched strongly depends on the initial and new lamp intensities. Our results stress the need to consider simultaneously the effects of changes in the different lights characteristics when street lighting changes. Because switches from LPS to LED lamps can lead to an increase in light intensity, such technological changes may involve a reduction of bat activity in numerous cases, especially at high LED intensities. Since we are currently at an important crossroad in lighting management, we recommend to limit LED intensity and improve its spectral composition toward warmer colors to limit potential deleterious impacts on bat activity.
A Flat Mobile Core Network for Evolved Packet Core Based SAE Mobile Networks

In the current mobile IPv6 (MIPv6) systems for the System architecture evaluation (SAE) networks, such as 4th generation (4G) mobile network, the data delivery is performed basing on a centralized mobility network anchor between Evolved Node B (eNB) and Serving Gateways (S-GW), and also between S-GW and Packet Data Network Gateway (P-GW). However, the existing network has many obstacles, including suboptimal data routing, injection of unwanted data traffic into mobile core network and the requirement of capital expenditure. To handle these challenges, here we describe a flat mobile core network scheme donated by F-EPC, based SAE mobile network. In the proposed scheme, the P-GW and S-GW gateways are features as one node named Cellular Gateway (C-GW). Further, we proposed to distribute and increase the number of C-GW in mobile core network, the Mobility Management Entity (MME) functioned as centralizing mobility anchor and allocating the IP address for the User Entity (UE). In this paper, the explained results of a simulation analysis showed that the proposed scheme provides a superior performance compared with the current 4G architecture in terms of total transmission delay, handover delay and initial attach procedure.
A Geospatial Analysis and Kernel Density Estimation of River Quality Parameter in Bulacan, Philippines

This study intends to visualize the water quality using different parameters in determining the river pollution in the province of Bulacan with the use of Geographic Information System (GIS) together with Kernel Density Estimation (KDE). Utilizing the different water quality parameters like Dissolved Oxygen (DO), Potential of Hydrogen (pH), Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS), Nitrate, Phosphate, and Coliform is the premise in deciding the water quality level. The information considered reliably based on the given historical data gathered from January 2013 to May 2018. In this regard, the GIS model shows the hotspot area of the diverse water quality parameters and Water Quality Index (WQI). By employing the Predictive Accuracy Index (PAI) also helps to measure how accurate the spatial distribution produced by the GIS model. As a result, the majority of the sampling station is polluted, provided that they have ‘Poor’ and ’Very Poor’ condition.
Simultaneous Optimisation of Cable Connection Schemes and Capacity for Offshore Wind Farms via a Modified Bat Algorithm

Offshore wind energy has attracted worldwide attention and investments in the last decade due to the stability and abundance of wind resources. As one of the main components of this, internal array cables have a great impact on the levelised cost of energy of offshore wind farms, and thus their connection layout is a matter of concern. In this paper, a classical mathematical problem—the traveling salesman problem, which belongs to the field of graph theory—is applied to solve the offshore wind farm cable connection layout optimization problem. Both the capital investment on cables, cable laying, and the cost of power losses associated with array cables are considered in the proposed model. A modified bat algorithm is presented to resolve the problem. Furthermore, a cable crossing detection method is also adopted to avoid obtaining crossed cable connection layouts. The effectiveness was verified through a case study.
A topology model for glutamate receptor subunit, GluR6

The topology of GluR6, a glutarnate receptor subunit, was determined using mutagenesis, expression in HEK293 cells, and in vitro proteolysis. The amino acid sequence I-E/D-G-R, which is foreign to the native protein and recognized by factor Xa protease, was inserted into hydrophiiic loops of GluR6. Mutants showed that three fXa protease sites in tandem are required for successful proteolysis. Exposure of intact and lysed HEK293 cells expressing GluR6 mutants, and subsequent immunodetection of GluR6 suggested the sidedness of the mutation site with respect to the plasma membrane. A three tandem m a site at valine 570 was intracellular, since the mutant protein was cleaved only when cells were ! ysed but not intact. On the other hand, an insertion at alanine 644 was extracellular, since the mutant protein was also cleaved when the cells were intact. These results support a three transmembrane domain model that has been proposed for ionotropic glutarnate receptors.
Anion Photoelectron Spectroscopy and Ab Initio Calculations of Asymmetric Halogen Dioxides

Ab initio calculations have been conducted of halogen-oxygen neutral and anion complexes for bromine and iodine. The purpose of these calculations is to determine their geometric and electronic structure. To support these calculations, anion photoelectron spectroscopy has been conducted on the halide-oxygen complexes with good agreement between experiment and calculation. The classification of these complexes could have implications to current atmospheric models and results suggest that these complexes are stable in both forms, however their stability is low and would hence exist in low concentrations in atmospheric conditions.
Boundary regularity in the Dirichlet problem for the invariant Laplacians Δᵧ on the unit real ball

We study the boundary regularity in the Dirichlet problem of the differential operators formula math. Our main result is: if γ > -1/2 is neither an integer nor a half-integer not less than n/2 - 1, one cannot expect global smooth solutions of Δ γ u = 0; if u ∈ C∞(B n ) satisfies Δ γ u = 0, then u must be either a polynomial of degree at most 2γ + 2 - n or a polyharmonic function of degree γ + 1.
Single Stage Autonomous Solar Water Pumping System Using PMSM Drive

This article presents a single stage standalone solar photovoltaic (SPV) array fed water pumping system using a permanent magnet synchronous motor (PMSM). The vital contribution of this work includes: 1) development of the novel modified vector control, which improves the torque response of the system, 2) development of a novel single stage variable step size incremental conductance technique, which provides a fast maximum power point tracking and eliminates the need of intermediate stage dc–dc converter, and 3) introduction of SPV power feed-forward term, which accelerates the overall response of the system under dynamic conditions. This system includes a SPV array, a three-phase voltage source inverter (VSI), a PMSM and a pump. The SPV array converts solar energy into electrical energy. The VSI acts as power processing unit, which supplies desired currents to drive the PMSM. As the PMSM rotates, the pump coupled to the motor accomplishes the objective of water pumping. This system is modeled and simulated using MATLAB/Simulink with available simpower system toolbox and the behavior of the system under varying atmospheric conditions are validated experimentally on a developed prototype in the laboratory.
Synthesis and antimicrobial activity of some novel pyrazoles

New substituted pyrazoles were prepared from o-hydroxyacetophenone and cinnamic acids as starting materials through1,3-diketones as intermediates. These intermediates on reaction with hydrazines in alkaline media, finally converted into corresponding pyrazoles. The synthesized compounds were characterized by their physical properties, IR, NMR and LC Mass spectroscopic studies. The antimicrobial activity of synthesized pyrazoles was assessed by agar cup method and filter paper disc method. In the most cases pyrazole having Chloro substitution on the styryl ring was found to be more efficient than the remaining against Xanthomonas Campestris and Aspergillus Niger species.
Phylogenetic relationships and distribution of New World Melastomeae (Melastomataceae)

In this study we present a phylogenetic analysis of Melastomeae, focusing on the Neotropical members of the tribe, a group of c. 70 species in 30 genera. In total, 236 species, including outgroups (Miconieae and Merianieae) and representatives of the Microlicieae and Rhexieae, were sequenced for the nuclear ribosomal internal transcribed spacer (nrITS), and the plastid spacers accD-psaI and psbK-psbL. Melastomeae are not resolved as monophyletic because a group of mostly herbs and small trees with mostly tetramerous flowers (Acanthella, Aciotis, Acisanthera, Appendicularia, Comolia, Ernestia, Fritzschia, Marcetia, Macairea, Nepsera, Sandemania and Siphanthera) is nested between Rhexieae and Microlicieae. The remaining New World Melastomeae are not resolved as monophyletic, because a group of Old World genera (Osbeckia, Melastoma, Tristemma and allied genera) are nested in the tribe. The large genus Tibouchina is not monophyletic because Brachyotum, Bucquetia, Castratella, Centradenia, Chaetolepis, Heterocentron, Itatiaia, Microlepis, Monochaetum, Pilocosta, Svitramia, and Tibouchinopsis are nested in it, even although all of these genera are recovered as monophyletic. Each major clade has remarkable habitat and geographical integrity. The clade formed by Tibouchina and allies appears to have arisen in savannas in lowland South America and later expanded to forest, campo and high Andean biomes. At least two groups have radiated in eastern Brazil, and two other groups in the Andes and mountains of Central America. Niche conservatism and colonization of adjacent environments seem to have driven speciation in Neotropical Melastomeae. © 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, ●●, ●●–●●.
Strengthening of Slab-Column Connections with CFRP Strips / Wzmacnianie Połaczen Płyta-Słup Za Pomoca Tasm CFRP

Abstract The paper describes experimental research of slab-column connections examined on specimen designed as a part of reinforced concrete structure with flat slabs. The aim of the research was to verify the efficiency of slab reinforcement concept against punching shear by increasing slab’s mechanical reinforcement ratio by applying additional external reinforcement in the form of carbon fiber reinforced polymer (CFRP) strips. The capacity enhancement in comparison to unstrengthened slab obtained 36%. Streszczenie Artykuł przedstawia badania doswiadczalne płyt zelbetowych, przyjetych jako fragment realnej konstrukcji zelbetowej z płaskimi stropami. Celem badan była weryfikacja efektywnosci wzmocnienia połaczenia płyty ze słupem na przebicie poprzez zwiekszenie mechanicznego stopnia zbrojenia (mocy zbrojenia) za pomoca dodatkowych zewnetrznych tasm karbodurowych (CFRP). Uzyskano wzrost nosnosci na przebicie do 36% wzgledem modelu odniesienia