Miracle-dz/UniFAR-FTUs huggingface dataset:
A Learning and RSRP-Based Interference Topology Management Scheme for Ultra-Dense Networks

We consider an ultra-dense network (UDN), where serious interference may exist due to the densely deployed base stations (BSs) and user equipment (UE). Noting that the conventional interference management (IM) scheme is not readily applicable, in this paper, we propose a novel interference topology management (ITM) scheme to achieve low-complexity IM in UDNs. The proposed ITM scheme consists of two stages, namely, the optimized BS clustering stage and the decentralized UE-cluster association stage. In the first stage, a novel unsupervised learning-based BS clustering algorithm is proposed, which outperforms the conventional clustering method. Then, a decentralized UE-cluster association algorithm is proposed, which doesn't need to exchange the channel information among clusters, and significantly save system overheads as compared to the centralized solutions. The results show that our ITM scheme can improve the system throughput at lower complexity as compared to other related schemes.
The syn‐rift tectono‐stratigraphic record of rifted margins (Part I): Insights from the Alpine Tethys

The tectono‐stratigraphic evolution of rift systems is at present poorly understood, especially the one preceding the onset of oceanic seafloor spreading. Improving our understanding of the complex, polyphase tectonic evolution of the fossil Alpine Tethys, one of the best calibrated magma‐poor rift systems worldwide, offers great potential for the interpretation of the distal part of global rifted margins, which notoriously lack data. In this paper, we propose a tectono‐stratigraphic model for the former Alpine Tethys, whose remnants are exposed in the Alps of Western Europe. We first review the historical evolution of some concepts grounding present knowledge on the Alpine‐ and global magma‐poor rifted margins. Then we present a spatial and temporal template for the Alpine Tethys rift system using a ‘building block (BB)’ approach. This new approach is powerful in that it can integrate high‐resolution, structural, stratigraphic, thermochronological, and petrological observations from dismembered outcrops into a margin‐scale template compatible with the first‐order seismic architecture defined at present‐day, magma‐poor rifted margins. The detailed analysis of the syn‐rift sequence of the Alpine Tethys margins demonstrates that extension migrated and localised while evolving from the stretching to the necking phase. During hyperextension, rifting was asymmetric and controlled by in‐sequence detachment faulting. Then, the rift system evolved back into a more symmetric, embryonic spreading system. With this contribution, we aim to allow readers without knowledge of the Alps to access this unique ‘archive’ preserving some of the world's best‐exposed rift structures. Recognising these structures is critical to understand the origin of some new concepts used to explain present‐day, deep‐water rifted margins, and to interpret and predict the tectono‐stratigraphic evolution during advanced stages of rifting.
Molecular simulation of the preferential adsorption of CH4 and CO2 in middle-rank coal

ABSTRACT The adsorption of the CO2/CH4 mixture in coal affects the CO2-enhanced coalbed methane recovery project. To gain a better understanding of CH4 and CO2 interaction with middle-rank coal, we developed a molecular concept with support for the sorption of CH4 and CO2 on Ximing-8 coal (XM-8) (1.8% vitrinite reflectance). A XM-8 coal model was built by using molecular dynamic (MD) simulations. The molecular simulations were established by the Grand Canonical Monte Carlo and MD methods to study the effects of the temperature, pressure, and species bulk mole fraction on the pure component adsorption isotherms, isosteric heat and adsorption selectivity. It turns out that the CO2 selectivity decreases as the pressure and its own bulk mole fraction increases, but it increases as temperature increases, and the selectivity values are not always greater than 1. The interactions between the small molecules and XM-8 were determined by using density functional theory. It was found that the interactions between the CO2 and XM-8 surface is greater, particularly for the heteroatoms than CH4. The adsorption selectivity and interaction were simultaneously used to reveal that the advantageously substituted range is high temperature, low pressure and a high content of heteroatoms.
Climatology of Asian dust activation and transport potential based on MISR satellite observations and trajectory analysis

Abstract. Asian dust, primarily emitted from the Taklamakan and Gobi deserts, has been reported to reach remote destinations, such as North America. However, the relative contribution of the Taklamakan and Gobi deserts to dust loadings through long-range transport remains unaddressed in any observational study. Here, the climatology of Asian dust activation and potential for transport is investigated using stereo observations of dust sources from the Multi-angle Imaging SpectroRadiometer (MISR) instrument combined with observation-initiated trajectory modeling. MISR-derived dust plume top height and dust plume motion vectors confirm the peak of dust activation and transport potential in spring over the Gobi Desert and in both spring and summer over the Taklamakan Desert. The long-range trajectory patterns of Asian dust, including the influence on North America through trans-Pacific transport, are assessed using extensive forward trajectories initiated by MISR dust plume observations. The trajectory analysis reveals latitude-dependent spread of dust trajectories from the Taklamakan and Gobi deserts, with Taklamakan dust dominantly affecting to the south of 50∘ N and Gobi dust primarily affecting to the north of 50∘ N in North America. The Asian dust activation and transport potential exhibit substantial seasonal and interannual variability, motivating future studies on the potential drivers.
Frame-theoretic Precoding and Beamforming Design for Robust mmWave Channel Estimation

We propose a new method for the design of TX-precoders and RX-beamformers to improve the robustness of millimeter wave (mmWave) channel estimation, focusing on a frame-theoretic approach and a sparse formulation of the mmWave channel estimation problem. Concretely, the high-level design criteria of the transmit precoders and receive beamformers are modeled through a single frame, while their practical realization is achieved by distributed frames, related to the latter by the Kronecker product. We prove that the desirable frame properties are invariant to the derived Kronecker decomposition allowing for the same strategy to be applicable both in the design of a joint measurement matrix – leading to optimal but theoretical-only performance – as well as in the design of practical TX/RX precoding/beamforming matrices. Simulations outline both the improvement achieved by the proposed scheme against the state-of-the-art, as well as its trend towards optimality for systems with large number of antennas and/or subjected to high noise variances.
Recovery of By-Products from the olive oil production and the vegetable oil refining for biodiesel production

The by-products acid oil from soapstock of vegetable oil refining and olive pomace oil were evaluated for biodiesel production. Enzymatic hydroesterification was studied to convert the acid oil ( 34 wt.% free fatty acids) into methyl esters; due to the low free fatty acid content of the fresh olive pomace oil ( 2 wt.%), alkaline transesterification was conducted. The results from the enzymatic hydrolysis (35˚C, 24 h, 200 rpm) showed a clear influence of enzyme concentration (0.1 – 5 wt.%, relative to oil) and water:oil ratio (1:0.25 and 1:0.5 w:w) towards free fatty acid production. After applying the best established conditions (3 wt.% of enzyme and 1:0.5 water: oil ratio, w:w), enzymatic esterification was performed (35˚C, 7 h, 200 rpm, 2 wt.% of enzyme and 2:1 molar ratio of methanol to acid). Hydroesterification led to a product with a methyl esters content of about 84 wt. % whereas the esterification alone allowed reaching only around 65 wt. %. The olive pomace oil was obtained from chemical extraction of fresh olive pomace ( 18 wt.% of oil). By performing direct alkaline transesterification (65˚C, 1 wt.% NaOH, 1 h and 6:1 molar ratio of methanol to oil) a product with a purity of 90 wt. % was obtained. The olive pomace storage in the air during 2 weeks led to an increase in the oil free fatty acid content of almost 2 fold showing the relevance of developing storage and conservation strategies to ensure a sustainable recovery of this by-product. Both by-products showed potential for biodiesel production.
Physiology and Inflammation Driven Pathophysiology of Iron Homeostasis—Mechanistic Insights into Anemia of Inflammation and Its Treatment

Anemia is very common in patients with inflammatory disorders. Its prevalence is associated with severity of the underlying disease, and it negatively affects quality of life and cardio-vascular performance of patients. Anemia of inflammation (AI) is caused by disturbances of iron metabolism resulting in iron retention within macrophages, a reduced erythrocyte half-life, and cytokine mediated inhibition of erythropoietin function and erythroid progenitor cell differentiation. AI is mostly mild to moderate, normochromic and normocytic, and characterized by low circulating iron, but normal and increased levels of the storage protein ferritin and the iron hormone hepcidin. The primary therapeutic approach for AI is treatment of the underlying inflammatory disease which mostly results in normalization of hemoglobin levels over time unless other pathologies such as vitamin deficiencies, true iron deficiency on the basis of bleeding episodes, or renal insufficiency are present. If the underlying disease and/or anemia are not resolved, iron supplementation therapy and/or treatment with erythropoietin stimulating agents may be considered whereas blood transfusions are an emergency treatment for life-threatening anemia. New treatments with hepcidin-modifying strategies and stabilizers of hypoxia inducible factors emerge but their therapeutic efficacy for treatment of AI in ill patients needs to be evaluated in clinical trials.
Capacity Analysis and Structured Sparse Detection of Generalized Media-based Modulation

Media-based modulation (MBM) is an attractive channel modulation scheme with rate, performance, and hardware advantages. In this paper, we are concerned with two important aspects of MBM. The first one is on the capacity of MBM and the other is on low-complexity detection of high-rate MBM signals using structured spare recovery techniques. We derive closed-form expression for the capacity of generalized MBM (GMBM). The main idea in the capacity analysis is to recognize that MBM uses two alphabets to convey information, namely, the source alphabet (e.g., QAM/PSK) and the channel alphabet (fade coefficients). This observation allows us to show that the capacity is achieved when the mutual information is maximized over the source-channel product alphabet. We then propose a greedy structured sparse recovery algorithm for the detection of GMBM signal vectors. The proposed algorithm is a two-stage algorithm in which support recovery is done in greedy manner first, followed by data detection in the nonzero positions. Simulation results show that the proposed algorithm achieves good performance at low complexity even when the system is highly underdetermined.
Phenolic and volatile compounds, antioxidant activity, and sensory properties of virgin coconut oil: Occurrence and their relationship with quality

Virgin coconut oil (VCO) is a vegetable oil extracted from fresh coconut meat and processed using only physical without contamination by chemicals usage. Some phenolic acids identified in VCO include: protocatechuic, vanillic, caffeic, syringic, ferulic, and p-coumaric acids. Some study suggested that the contribution of antioxidant activity in VCO could be due to phenolic compounds. Volatile compounds identified included ethyl acetate, acetic acid, 2-pentanone, hexanal, n-octane, 2-heptanone, limonene, nonanal, octanoic acid, ethyl octanoate, δ-octalactone, ethyl decanoate, δ-decalactone, and dodecanoic acid. The sensory properties identified and quantified in VCO had slightly detectable acid aroma, sweet and salty tastes, and perceptible nutty aroma and flavor. This paper primarily discusses the findings associated with phenolic compounds, volatile compounds, antioxidant activity, and the sensory properties of VCO.Virgin coconut oil (VCO) is a vegetable oil extracted from fresh coconut meat and processed using only physical without contamination by chemicals usage. Some phenolic acids identified in VCO include: protocatechuic, vanillic, caffeic, syringic, ferulic, and p-coumaric acids. Some study suggested that the contribution of antioxidant activity in VCO could be due to phenolic compounds. Volatile compounds identified included ethyl acetate, acetic acid, 2-pentanone, hexanal, n-octane, 2-heptanone, limonene, nonanal, octanoic acid, ethyl octanoate, δ-octalactone, ethyl decanoate, δ-decalactone, and dodecanoic acid. The sensory properties identified and quantified in VCO had slightly detectable acid aroma, sweet and salty tastes, and perceptible nutty aroma and flavor. This paper primarily discusses the findings associated with phenolic compounds, volatile compounds, antioxidant activity, and the sensory properties of VCO.
Controllability properties from the exterior under positivity constraints for a 1-D fractional heat equation

We study the controllability to trajectories, under positivity constraints on the control or the state, of a one-dimensional heat equation involving the fractional Laplace operator $ (-\partial_x^2)^s$ (with $0<s<1$) on the interval $(-1,1)$. Our control function is localized in an open set $\mathcal O$ in the exterior of $(-1,1)$, that is, $\mathcal O\subset (\mathbb{R} \setminus (-1,1))$. We show that there exists a minimal (strictly positive) time $T_{\rm min}$ such that the fractional heat dynamics can be controlled from any initial datum in $L^2(-1,1)$ to a positive trajectory through the action of an exterior positive control, if and only if $\frac 12<s<1$. In addition, we prove that at this minimal controllability time, the constrained controllability is achieved by means of a control that belongs to a certain space of Radon measures. Finally, we provide several numerical illustrations that confirm our theoretical results.
ASSESSMENT OF CURATIVE EFFECT OF USING STEM CELLS ON THE CONTROL OF PESTICIDE DAMAGING EFFECT ON LIVER

Introduction: Liver failure is a growing health problem and one of the main causes of death worldwide. Regenerative medicine as stem cells therapy is a newly rapidly developing field in which diseased tissues are regenerated. Aim: To evaluate the effectiveness of stem cell on liver degeneration induced by Chlorpyrifos as an organophosphorus insecticide widely used in agriculture in Egypt, and Comparing its efficacy with silymarin and colchicine as antifibrotic agents used in liver fibrosis. Methods: Induction of liver degeneration and fibrosis by Chlorpyrifos (CPF) for 8 weeks to Swiss albino mice in randomly divided groups (B, C and D) and a control healthy group (A), each group composed of 15 mice. Group (C) was treated with oral silymarin and colchicine and group (D) was treated with intra-peritoneal injection of Mesenchymal stem cells (MSC) (10 6 cells / mouse) after induction of liver fibrosis. After 4 weeks of treatment, all mice were sacrificed, blood was collected for chemical analysis (liver functions tests: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), Albumin, Bilirubin). Histopathological evaluation and grading were assessed by H& E stain. Results: ALT, AST and Albumin were significantly improved in groups C and D. Bilirubin and liver tissue grading were significantly reduced in group D, with insignificant reduction in group C. Conclusion: Treatment with MSCs may improve liver functions tests (ALT, AST, Albumin, and Bilirubin) and liver fibrosis. While, treatment with J. Environ. Sci. Institute of Environmental Studies and Research – Ain Shams University Vol. 39, No.1, Spt. , 2017 24 colchicine and silymarin does not improve the liver fibrosis, nor improves total serum bilirubin, but may improve ALT, AST and Albumin.
ADC Quantization with Overlapping Metastability Zones and Dual Reference Calibration

This paper presents a new ADC quantization method using overlapping metastability zones with dual reference metastability zone detectors. Dual reference calibration is proposed to define both the upper bound and the lower bound of each metastability zone. Therefore, the metastability zones are defined with higher precision, and the ADC can resolve finer input voltage differences for a smaller input LSB voltage. A 2GS/s, 6 bit flash ADC in 0. 13μm BiCMOS technology was designed using the proposed quantization method. Simulation results show that the ADC can achieve 5mV input LSB, 35.16 dB SNDR at low frequency, and 34.8 dB SNDR at Nyquist rate, while consuming 62mW.
Graphene-based Chemiresistive Gas Sensors

Gas sensors are an indispensable ingredient of the modern society, finding their use across a range of industries that include manufacturing, environmental protection and control, automotive and others. Novel applications have been arising, requiring new materials. Here we outline the principles of gas sensing with a focus on chemiresistive-type devices. We follow up with a summary of the advantages and use of graphene as a gas sensing material, discussing the properties of different graphene production methods. Finally, we showcase some recent results that point to novel applications of graphene-based gas sensors, including respiration monitoring and finger proximity detection.
Impact of Myrciaria Dubia Peel and Seed Extracts on Oxidation Process and Colour Stability of Ground Lamb

ABSTRACT The present study investigated the influence of Myrciaria dubia peel and seed extracts (PE and SE) on colour and oxidation stability of ground lamb. Instrumental colour (L*, a*, and b* values), pH, lipid oxidation (TBARS), and protein oxidation (carbonyls) were determined during 9 days of storage at 4 °C. Although the L* value was not affected by any enhancement type (BHT, PE, or SE), all samples exhibited a decrease on the a* values (P < 0.05) during refrigerated storage. M. dubia extracts increased the lipid stability in ground lamb, however no positive effect on protein oxidation was observed. PE and SE samples had lower (P < 0.05) TBARS values compared with control and BHT counterparts. Due to its antioxidant effect on lipids, peel and seed extracts of M. dubia can be considered a viable strategy to improve the oxidative stability of ground lamb during storage.
Dielectrically Modulated Single and Double Gate Tunnel FET Based Biosensors for Enhanced Sensitivity

The paper explores the comparative biosensing analysis of single Gate (SG) and double Gate (DG) Extended Source Tunnel FET (ESTFET). The dielectric modulation technique has been incorporated for both the proposed biosensors with increased capture area by introducing nano-cavities near the source and drain region. The biosensing performance parameters like Threshold Voltage Sensitivity (<inline-formula> <tex-math notation="LaTeX">$\Delta\text{V}_{th}$ </tex-math></inline-formula>), ON-OFF Current Ratio Sensitivity (<inline-formula> <tex-math notation="LaTeX">$\Delta\text{I}_{\text{ON}}/\text{I}_{\text{OFF}}$ </tex-math></inline-formula>), and Drain Current Sensitivity (<inline-formula> <tex-math notation="LaTeX">$\Delta \text{S}_{Id}$ </tex-math></inline-formula>) are calculated and compared for both the SG-ES and DG-ESTFET based biosensors. Sentaurus TCAD simulator is used for the investigation reported in this paper. The analysis includes neutral, positively and negatively charged biomolecules for various dielectric constants at immobilization layer and biomolecule analogous insulator interface. Further, a comprehensive analysis of partly filled nano-cavity originated from steric hindrance has been conferred to engulf the real time scenario. Different cases of partly filled nano-cavity have been considered to investigate the sensitivity parameters such as convex, concave, increasing and decreasing step profile along with asymmetric probe placement. It is observed that SG-ESTFET based label free biosensor outperform the DG-ESTFET due to the impact of back gate on the drain side nano-cavity. Some important bio-sensing parameters are estimated to have the subsequent values for SG-ESTFET (DG-ESTFET) as 80 mV (74 mV) for threshold voltage sensitivity, <inline-formula> <tex-math notation="LaTeX">$23\,\,\times10$ </tex-math></inline-formula><sup>3</sup> (<inline-formula> <tex-math notation="LaTeX">$15\,\,\times10$ </tex-math></inline-formula><sup>3</sup>) for ON-OFF current ratio sensitivity and <inline-formula> <tex-math notation="LaTeX">$60\,\,\times10$ </tex-math></inline-formula><sup>2</sup> (<inline-formula> <tex-math notation="LaTeX">$45\,\,\times10$ </tex-math></inline-formula><sup>2</sup>) for drain current sensitivity, respectively. Lastly, different sensitivity parameters of SG-ES and DG-ESTFET are gauged against sensitivities of state of the art biosensors to set out the high sensitivity of our proposed biosensors.
“This is a mailbox, right?”: Associations of play materials with siblings’ and friends’ shared meanings during pretend play

Play materials designed to enhance children’s pretense were investigated; namely, how the specific characteristics of the play sets (thematically open-ended village set vs thematically closed-ended train set) influenced children’s play communication regarding their co-construction of shared meanings. Participants included 44 7-year-old focal children playing with both play sets with an older or younger sibling and a same-age friend. Play set differentially impacted the type of shared meanings children co-constructed; specifically, the village set promoted more simple strategies (e.g. descriptions) and clarifications (e.g. questions), and the train set facilitated more prosocial behavior (e.g. helping), regardless of play partner. Friends were more likely to initiate play ideas and engage in disruptive behavior (e.g. control, aggression) with the train versus the village. The pattern of findings indicated that children’s play communications may be associated with the specific type of props and that all materials designed for pretense do not enhance it in the same way.
Impact of Overlapped AoAs on the Multi-user Hybrid D-A Beamforming for mm-Wave Systems

In this paper, we develop novel precoders and combiners for multi-user hybrid digital to analog (D-A) beamforming for uplink massive multiple-input multiple-output millimeter wave systems. Considering the possibility that uplink transmissions from different users can go through the paths sharing the same physical scatters, some transmission paths of different users may have overlapped angle of arrivals (AoAs) at the base station. Therefore, the intrinsic focus is on substantially maximizing the desired signal while reducing the system interference. The analog precoders and combiners are designed by using the eigenvalue decomposition and the Riemannian optimization method based on Stiefel manifold algorithms respectively. The digital combiner adapts the minimum mean-square error by judiciously exploiting the effective uplink analog channel gains. Ultimately, simulation results show that the proposed algorithms outperform the existing algorithms in hybrid D-A paradigms in terms of the achievable uplink rate.