Miracle-dz/UniFAR-FTUs huggingface dataset:
Secure and Stable Wireless Communication for an Ingestible Device

Wireless communication enables an ingestible device to send sensor information and support external on-demand operation while in the gastrointestinal (GI) tract. However, it is challenging to maintain stable wireless communication with an ingestible device that travels inside the dynamic GI environment as this environment easily detunes the antenna and decreases the antenna gain. In this paper, we propose an air-gap based antenna solution to stabilize the antenna gain inside this dynamic environment. By surrounding a chip antenna with 1 ~ 2 mms of air, the antenna is isolated from the environment, recovering its antenna gain and the received signal strength by 12 dB or more according to our in vitro and in vivo evaluation in swine. The air gap makes margin for the high path loss, enabling stable wireless communication at 2.4 GHz that allows users to easily access their ingestible devices by using mobile devices with Bluetooth Low Energy (BLE). On the other hand, the data sent or received over the wireless medium is vulnerable to being eavesdropped on by nearby devices other than authorized users. Therefore, we also propose a lightweight security protocol. The proposed protocol is implemented in low energy without compromising the security level thanks to the base protocol of symmetric challenge-response and Speck, the cipher that is optimized for software implementation.
Neurophysiological Bases of Exponential Sensory Decay and Top-Down Memory Retrieval: A Model

Behavioral observations suggest that multiple sensory elements can be maintained for a short time, forming a perceptual buffer which fades after a few hundred milliseconds. Only a subset of this perceptual buffer can be accessed under top-down control and broadcasted to working memory and consciousness. In turn, single-cell studies in awake-behaving monkeys have identified two distinct waves of response to a sensory stimulus: a first transient response largely determined by stimulus properties and a second wave dependent on behavioral relevance, context and learning. Here we propose a simple biophysical scheme which bridges these observations and establishes concrete predictions for neurophsyiological experiments in which the temporal interval between stimulus presentation and top-down allocation is controlled experimentally. Inspired in single-cell observations, the model involves a first transient response and a second stage of amplification and retrieval, which are implemented biophysically by distinct operational modes of the same circuit, regulated by external currents. We explicitly investigated the neuronal dynamics, the memory trace of a presented stimulus and the probability of correct retrieval, when these two stages were bracketed by a temporal gap. The model predicts correctly the dependence of performance with response times in interference experiments suggesting that sensory buffering does not require a specific dedicated mechanism and establishing a direct link between biophysical manipulations and behavioral observations leading to concrete predictions.
A Learning and Control Perspective for Microfinance

Microfinance, despite its significant potential for poverty reduction, is facing sustainability hardships due to high default rates. Although many methods in regular finance can estimate credit scores and default probabilities, these methods are not directly applicable to microfinance due to the following unique characteristics: a) under-explored (developing) areas such as rural Africa do not have sufficient prior loan data for microfinance institutions (MFIs) to establish a credit scoring system; b) microfinance applicants may have difficulty providing sufficient information for MFIs to accurately predict default probabilities; and c) many MFIs use group liability (instead of collateral) to secure repayment. Here, we present a novel control-theoretic model of microfinance that accounts for these characteristics. We construct an algorithm to learn microfinance decision policies that achieve financial inclusion, fairness, social welfare, and sustainability. We characterize the convergence conditions to Pareto-optimum and the convergence speeds. We demonstrate, in numerous real and synthetic datasets, that the proposed method accounts for the complexities induced by group liability to produce robust decisions before sufficient loans are given to establish credit scoring systems and for applicants whose default probability cannot be accurately estimated due to missing information. To the best of our knowledge, this paper is the first to connect microfinance and control theory. We envision that the connection will enable safe learning and control techniques to help modernize microfinance and alleviate poverty.
Experimental observation of bound solitons with a nonlinear multimode interference-based saturable absorber

Both in-phase and anti-phase two-soliton bound states are observed using the structure of step-index multimode fiber and graded-index fiber as a new saturable absorber (SA) based on nonlinear multimode interference. To our knowledge, this is the first time that results are being reported of stable bound states with a multimode fiber laser as an SA in a passively mode-locked fiber laser. The bound solitons are verified to be stable for several hours in the laser cavity when keeping the experimental environment unchanged.
ON PASSIVITY OF FRACTIONAL ORDER SYSTEMS∗

Passivity and dissipativity have proven to be useful analysis and design tools in nonlinear systems. We generalize notions of passivity and dissipativity to fractional order systems. Besides reducing to existing concepts when the order of the system is an integer, our proposed definitions guarantee two additional properties that passive integer order systems have. First, we show that similar to dissipative integer order systems, a QSR dissipative fractional order system is also L2 stable. Second, under fairly weak conditions, we show that passive and strictly passive fractional order systems are also stable in the sense of Lyapunov and Mittag-Leffler, respectively. Third, we show that passive fractional order systems satisfy compositionality properties; specifically, parallel and feedback interconnection of passive fractional order systems are also passive. Having provided these definitions and analyzed their properties, we study the problem of passivating a fractional order system by designing a feedback controller such that the closed-loop system is passive. Finally, we illustrate the proposed concepts through numerical examples.
Single-port versus conventional multiport access prophylactic laparoscopic bilateral salpingo-oophorectomy in high-risk patients for ovarian cancer: a comparison of surgical outcomes

: Bilateral salpingo-oophorectomy (BSO) in carriers of BRCA1 and BRCA2 mutations is widely recommended as part of a risk-reduction strategy for ovarian or breast cancer due to an underlying genetic predisposition. BSO is also performed as a therapeutic intervention for patients with hormone-positive premenopausal breast cancer. BSO may be performed via a minimally invasive approach with the use of three to four 5 mm and/or 12 mm ports inserted through a skin incision. To further reduce the morbidity associated with the placement of multiple port sites and to improve cosmetic outcomes, single-port laparoscopy has been developed with a single access point from the umbilicus. The purpose of this study was to evaluate the surgical outcomes associated with reducing the risks of salpingo-oophorectomy performed in a single port, while comparing multiport laparoscopy in women with a high risk for ovarian cancer. Single-port laparoscopy–BSO is feasible and safe, with favorable surgical and cosmetic outcomes when compared to conventional laparoscopy.
Dipyridamole potentiates the in vitro activity of MTA (LY231514) by inhibition of thymidine transport

The novel pyrrolopyrimidine-based antifolate LY231514 (MTA), inhibits multiple folate-requiring enzymes including thymidylate synthase, glycinamide ribonucleotide formyltransferase and dihydrofolate reductase. Both thymidine and hypoxanthine are required to reverse MTA growth inhibition in leukaemia and colon cancer cells. Prevention of MTA growth inhibition by thymidine and/or hypoxanthine was investigated in two human lung (A549, COR L23) and two breast (MCF7, T47D) tumour cell lines, and the effect of the nucleoside/base transport inhibitor dipyridamole (DP) on thymidine and hypoxanthine rescue defined. MTA IC50values (continuous exposure three population doublings) were: A549–640 n M, COR L23–28 n M, MCF7–52 n M and T47D–46 n M. Thymidine (1 μM) completely prevented growth inhibition at the MTA IC50in all cell lines. At 10 × IC50, growth inhibition was only partially reversed by thymidine (≤ 10 μM); both thymidine and hypoxanthine (30 μM) being required for complete reversal, reflecting the multi-targeted nature of MTA. Growth inhibition by MTA was not affected by hypoxanthine alone. A non-toxic concentration (1 μM) of DP prevented thymidine/hypoxanthine rescue of MTA indicating that DP may potentiate MTA activity by preventing nucleoside and/or base salvage. Thymidine transport was inhibited by ≥ 89% by 1 μM DP in all cell lines, whereas hypoxanthine transport was inhibited only in A549 and MCF7 cells. Therefore, prevention of end-product reversal of MTA-induced growth inhibition by DP can be explained by inhibition of thymidine transport alone. © 2000 Cancer Research Campaign
Isolation and Characterization of Actin from Myxoamoebae of Physarum polycephalum

Actin was isolated from myxoamoebae (the haploid vegetativephase) of Physarum polycephalum by a simple method, employing gel filtration on Sephadex G-100. This procedure will be useful for isolating both actin and myosin from the same myosin B fraction.The purified myxoamoeba actin was homogeneous electrophoretically and contained no β-actinin-like protein. In addition, myxoamoeba actin showedproperties similar to other actins; the polymerization of G-actin with 0.1 MKC1, the reduced viscosity of F-actin, the activation of myosin ATPase by actin, and the forming of long helical filaments with 0.1 M KC1 and arro-whead-like structures with heavy meromyosin.The amino acid composition of myxoamoeba actin resembled that of theplasmodium (the diploid vegetative phase) of Physarum, except that its glycine content was higher.
Isolation and Characterization of Actinomycete Strain BK185 Possessing Antifungal Activity against Ginseng Root Rot Pathogens

Abstract Ginseng (Panax ginseng C. A. Meyer) is an economically valuable pharmaceutical crop in Korea.In order to find promising biocontrol agents for soil-borne fungal pathogens which infect ginseng roots, wehave isolated actinomycete, BK185 from soil. The isolate was investigated for the antifungal activity againstto ginseng rot pathogens prior to testing genetic and chemical properties. The strain was identified asStreptomyces sp. using phylogenetic analysis based on 16S rRNA gene sequence. The most closely relatedspecies was S. sporoclivatus and S. geldanamycininus with high similarities (>99%). The isolate, BK185showed positive reaction for PCR detection targeting biosynthetic gene clusters of PKS (Type-I polyketidesynthase) and NRPS (Non-ribosomal polypeptide synthetase) genes. Major metabolite from the BK185 wasanalyzed by The LC/MS and identified to geldamycin, which was known to contained broad antibacterial,antifungal or anticancer activities. The results provide evidences that the strain, BK185 can be promisingbiocontrol agent for ginseng organic farming.Key words ginseng rot, antifungal activity, Streptomyces, BK185
Induction with Rabbit Antithymocyte Globulin versus Induction with Corticosteroids in Liver Transplantation: Impact on Recurrent Hepatitis C Virus Infection

This study compares the clinical course of recurrent hepatitis C virus (HCV) infection between 64 patients, who were randomized to receive either rabbit antithymocyte globulin (RATG) or steroids as induction therapy with tacrolimus for maintenance. The HCV recurrence was assessed by HCV RNA levels, peak ALT at 3–6 months, the grade of inflammation at biopsy at 3–6 months posttransplant, progression of fibrosis, and survival. All patients had also received antiviral therapy with interferon alpha 2b and ribavirin, if there were no contraindications. There was no statistically significant difference between the two groups in terms of inflammation at 3 months, peak ALT, or HCV RNA. The survival between the two groups of patients was similar. It appears that steroid-free liver transplantation with RATG induction does not have any negative influence on HCV recurrence in hepatitis C patients after liver transplantation.
Fuzzy fractional canonical correlation analysis

Feature learning has been widely used for image recognition. However, limited training samples and much noise usually make it challenging in practical classification applications. Specifically, it makes sample covariance matrix usually deviate from true ones. To alleviate this bias, we utilize a fractional-order strategy to re-model sample spectra of covariance matrix. On the other hand, as the object classes’ boundary is not very clear in practice, it is necessary to incorporate fuzzy relationship into feature learning. In this paper, we propose a fuzzy fractional canonical correlation analysis (FFCCA), where sample spectra are reconstructed by fractional modeling and at the same time, fuzzy label information is considered. Experimental results on visual recognition have shown that FFCCA can learn more discriminative low-dimensional features, in contrast with existing feature learning methods.
Global and regional climate in 2017

Globally, 2017 was one of the three warmest years on record at the surface of the Earth, despite neutral or weak La Niña conditions. Warmth was widespread in the climate system, with ocean heat and atmospheric temperatures also among the top three years. Arctic and Antarctic sea ice extents were below the long‐term average, and a number of months had record low extents. In the UK and Europe there were a number of unusual weather events, and high spring and summer temperatures affected areas of Europe, North Africa and the Middle East.
Impedance of accelerator components

As demands for high luminosity and low emittance particle beams increase, an understanding of the electromagnetic interaction of these beams with their vacuum chamber environment becomes more important in order to maintain the quality of the beam. This interaction is described in terms of the wake field in time domain, and the beam impedance in frequency domain. These concepts are introduced, and related quantities such as the loss factor are presented. The broadband Q=1 resonator impedance model is discussed. Perturbation and coaxial wire methods of measurement of real components are reviewed.
Arabidopsis thaliana : MYB 26 Interacting Proteins and Direct Targets

Secondary thickening deposition is an important process during anther development, as it produces mechanical forces required for anther opening and pollen release. The understanding of this process may allow generating new strategies to control male fertility, a new tool to improve yields. MYB26 is a transcription factor which plays an important role into the regulatory network of the secondary thickening deposition. Previous studies have identified two putative MYB26 interacting proteins At5g25560 (CHYR), At1g08320 (TGA9) and one direct target At2g39110 (PKSP). However, the interaction between them and its relation to secondary thickening remains unclear. For clarifying the role of this interacting protein and direct targets, phenotypic analysis of double mutants were performed. A PKSP overexpression construct was also developed. Furthermore, 560 and 320 overexpression lines were investigated. This study showed that the double mutant of tga9tga10 produced a phenotype affected in its reproductive development, displaying flowers with lack of pollen in the anther and carpels surface, suggesting that tga9 and tga10 are probably related with the regulation of the secondary thickening deposition. The other pksppksp2 and pksppcrk1 double mutants showed a normal vegetative and reproductive development, proposing that they may not be ligated with the thickening regulation or there may be another redundant gene restoring the function. qPCR expression analysis revealed a complex interaction between putative interacting proteins, direct target and MYB26. Future work is necessary for further investigation of these interesting interactions. PKSP overexpression construct can be used in plants to observe the effects produced by the overexpression of this gene.
Testing for Sphericity in a Fixed Effects Panel Data Model

This paper proposes a test for the null of sphericity in a fixed effects panel data model. It uses the Random Matrix Theory based approach of Ledoit and Wolf to test for the null of sphericity of the error terms in a fixed effects panel model with a large number of cross‐sectional units and time series observations. Because the errors are unobservable, the residuals from the fixed effects regression are used. The limiting distribution of the proposed test statistic is derived. In addition, its finite sample properties are examined using Monte Carlo simulations.
Treewidth: Computations and Approximations

and basic terminology. - Preliminaries. - Testing superperfection of k-trees. - Triangulating 3-colored graphs. - Only few graphs have bounded treewidth. - Approximating treewidth and pathwidth of a graph. - Approximating treewidth and pathwidth for some classes of perfect graphs. - Treewidth of chordal bipartite graphs. - Treewidth and pathwidth of permutation graphs. - Treewidth of circle graphs. - Finding all minimal separators of a graph. - Treewidth and pathwidth of cocomparability graphs of bounded dimension. - Pathwidth of pathwidth-bounded graphs. - Treewidth of treewidth-bounded graphs. - Recognizing treewidth-bounded graphs.
P‐2.11: Research on Scene 3d Reconstruction Technology Based on Multi‐sensor Fusion

3D scene provides reliable prior information for autonomous decision-making of mobile robot, which is the premise of intelligent mobile robot. 3D reconstruction technology realizes data fusion by sensing the environment and registering sensor data multiple times to the same coordinate system to generate offline 3D scene. 3D reconstruction is widely used in cultural relics reconstruction, AR tourism, automatic driving, smart home and video entertainment. This paper mainly uses lidar to fuse IMU data to realize 3D reconstruction of scene. The front-end odometer based on the fusion of lidar and IMU and the global pose optimization and mapping system based on loopback detection are designed. It improves the accuracy of the simultaneous positioning and mapping system and ensures the real-time performance
Pemodelan Menggunakan Metode Spasial Durbin Model untuk Data Angka Putus Sekolah Usia Pendidikan Dasar

Masalah anak yang putus sekolah perlu mendapatkan perhatian karena salah satu indikator yang berguna untuk mengukur kemajuan sumber daya manusia pada bidang pendidikan. Untuk menekan laju pertambahan jumlah anak putus sekolah tersebut dapat dilakukan dengan cara mengetahui faktor-faktor yang berpengaruh terhadap jumlah anak putus sekolah dan berpotensi dalam meningkatkan laju pertumbuhan anak yang putus sekolah. Pemodelan yang menggunakan pengaruh daerah (area) disebut pemodelan spasial. Ciri dari pemodelan spasial adalah adanya matriks pembobot yang merupakan penanda adanya hubungan antara suatu wilayah dengan wilayah lain. Salah satu model spasial yaitu Spasial Durbin Model (SDM). Penelitian ini bertujuan untuk mengetahui jumlah anak putus sekolah di wilayah Bali dengan menggunakan metode SDM dan ingin menetahui faktor-faktor yang mempengaruhi anak putus sekolah di wilayah Bali. Model yang didapat ialah pemodelan SDM menghasilkan nilai AICc yang lebih kecil dibandingkan pemodelan dengan OLS. Tidak adanya lag variabel independen yang signifikan menyebabkan hasil estimasi parameter menggunakan SDM menjadi tidak signifikan akan tetapi pada identifikasi nilai Moran’s I mengidentifikasikan adanya dependensi spasial pada variabel independen yang artinya ada kemiripan sifat untuk lokasi yang saling berdekatan.
Alternating Group Lasso for Block-Term Tensor Decomposition and Application to ECG Source Separation

In some applications, blind source separation can be performed by computing an approximate block-term tensor decomposition (BTD), under much milder constraints than matrix-based techniques. However, choosing the BTD model structure (i.e., the number of blocks and their ranks) is a difficult problem, and the standard least-squares formulation can be ill-posed. This paper proposes an alternating group lasso algorithm to compute approximate low-rank BTDs. It solves, in a provably convergent manner, a well-posed mixed-norm regularized tensor approximation problem that allows estimating the model parameters and its structure jointly. A variant is also put forward for dealing with linearly constrained blocks, motivated by the problem of blind separation of sums of complex exponentials, which can be cast as a low-rank Hankel-structured block-term tensor approximation problem. An experimental comparison with a standard nonlinear least-squares algorithm on synthetic tensor data indicates that the proposed algorithm is much more robust with respect to initialization. We also apply the constrained variant to the extraction of atrial activity from semi-synthetic and real-world electrocardiogram recordings during atrial fibrillation episodes. Our results show its ability to consistently select an adequate structure and to extract multiple signals which can be physiologically interpreted as atrial fibrillation patterns.
P‐1.10: Robust Amorphous IGZO Integrated Gate Driver Circuit for Ultra Large TFT‐LCD Applications

Recently, a‐IGZO TFTs have attracted considerable attention for ultra large‐sized and ultra high‐resolution display due to high mobility and good uniformity. The life‐time of integrated gate driver is mainly determined by the stability of low‐level maintaining and pull‐up TFTs, which always experience severe performance degradation after a long time operation. In this paper, a robust a‐IGZO integrated gate driver with dual lowlevel maintaining units is proposed and fabricated for ultra large‐sized and high resolution TFT‐LCD applications. The simulation and BTS measurement results demonstrate that proposed a‐IGZO gate driver has a large VTH shift margin, which contributes to extended life‐time of circuit operation.