Miracle-dz/UniFAR-FTUs huggingface dataset:
Reprints Available Directly from the Publisher Photocopying Permitted by License Only Expression of a Leukocyte-specific Antigen during Ontogeny in Xenopus Laevis

The monoclonal antibody CL21 recognizes a determinant present on the surface of leukocytes, but not on erythrocytes or nonhemopoietic tissue. The CL21 antigen was first expressed at 48 hr of development at 20C (stage 28) on embryonic cells cultured from lateral plate mesoderm. Based on immunofluorescence staining and flow cytometric analysis, the distribution of fluorescence intensity of larval thymocytes and splenocytes was unimodal. Distributions of dull and bright cells were detected in both adult thymocytes and splenocytes. These different subpopulations appeared during the late perimetamorphic period. Adult splenocytes were metabolically activated when cultured in the presence of mAb CL21 bound to a substrate but not in the presence of mAb CL21 in suspension. Immunoprecipitation and SDS-PAGE under nonreducing conditions revealed that a single 180-kD molecule was expressed on thymocytes. Analysis of splenocytes demonstrated the presence of two molecules having similar molecular mass that resolved to a single band under reducing conditions.
Practical rate control for video over WLAN

Transmission Rate control is an important issue for video streaming applications, particularly for mobile consumer devices in wireless network. We propose two rate control algorithms to enhance the performance of 802.11 streaming, where practical problems are taken into account, including the RTT fluctuation and real packet loss events. Extended from our wired TFRC [1], the first scheme, named as congestion differentiated rate control (CDRC), predicts the network status based on RTT and packet loss events feedback from the receiver. The second scheme is based on the cross layer strategy, named as WiQ-X, where the frame error rate in PHY layer helps to estimate the channel status and adapt the sending rate. Practical experiments show that both of our schemes can achieve stable transmission and high quality of video streaming, especially in the bad channel conditions. KeywordsWireless LAN, rate control, congestion control, congestion differentiated, cross-layer structure
Research on Algorithms for Edge Detection and Contour Tracking of Marine Robots

This paper uses video image analysis and preprocessing methods to study and analyze the environmental information collected by the Marine robot vision, and proposes the application of high-order fractional differential equation to the data information processing of the Marine robot vision algorithm. The object recognition algorithm of the Marine robot uses the processed visual images to process the object feature information. To obtain good working environment video image information for robot visual recognition, and provide reference for the next trajectory planning. Aiming at the problem of Marine robots recognizing environmental feature information, corner feature information and edge contour feature information of objects in video images are studied, Moravec corner detection algorithm is studied and analyzed, Harris corner detection algorithm and Canny edge detection algorithm are improved, and the improved corner and edge detection algorithm has very good robustness. Very good corner feature information and edge feature information are obtained for Marine robots.
Network analysis of texts

Different kinds of networks can be generated from already existing electronic sources. Text is a special and frequent form of such data. In the paper an overview of different ways to derive networks from the textual data and to analyse them are presented. The obtained networks can be very large, having some ten or hundred of thousands of vertices. Therefore special algorithms are needed to analyze and visualize them. All the analyses in the paper were done with Pajek, a program (for Windows) for large network analysis and visualization. It is freely available, for noncommercial use, at its site (Batagelj and Mrvar, 1998). We shall assume that the reader is familiar with the basic notions of graph theory (see for example (Wilson and Watkins, 1990)).
5 Gbit/s direct optical DPSK modulation of a 1530-nm DFB laser

5 Gb/s direct optical differential-phase-shift-keying (DPSK) modulation of a 1530-nm distributed feedback (DFB) laser is demonstrated using injection current modulation with a bipolar signal format. Delay demodulation is performed using an interferometer with a delay time T equal to the duration of one bit. The input and differentially encoded nonreturn to zero (NRZ) signals are shown. The bipolar modulation current signal is basically the time derivative of the NRZ signal. There was no degradation of the optical DPSK signal due to thermal frequency modulation of the laser. The direct DPSK modulation technique avoids the insertion loss and systems complexity of external DPSK modulators. <<ETX>>
Crystal structure of 2-methylamino-4-(6-methyl-4-oxo-4H-chromen-3-yl)-3-nitropyrano[3,2-c]chromen-5(4H)-one with an unknown solvate

In the title compound, C23H16N2O7, the mean planes of the two chromene units (r.m.s. deviations = 0.031 and 0.064 Å) are almost normal to one another with a dihedral angle of 85.59 (6)°. The central six-membered pyran ring has a distorted envelope conformation, with the methine C atom at the flap. There is an intramolecular N—H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, molecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers with an R 2 2(12) ring motif. The dimers are linked by pairs of C—H⋯O hydrogen bonds, enclosing R 2 2(6) ring motifs, forming zigzag chains along [001]. The chains are linked by a second pair of C—H⋯O hydrogen bonds, forming slabs parallel to (110). Within the slabs there are C—H⋯π interactions present. A region of disordered electron density was treated with the SQUEEZE procedure in PLATON [Spek (2015 ▸). Acta Cryst. C71, 9–18] following unsuccessful attempts to model it as plausible solvent molecule(s). The given chemical formula and other crystal data do not take into account the unknown solvent molecule(s).
A high-throughput chemical screen with FDA approved drugs reveals that the antihypertensive drug Spironolactone impairs cancer cell survival by inhibiting homology directed repair

DNA double-strand breaks (DSBs) are the most severe type of DNA damage. DSBs are repaired by non-homologous end-joining or homology directed repair (HDR). Identifying novel small molecules that affect HDR is of great importance both for research use and therapy. Molecules that elevate HDR may improve gene targeting whereas inhibiting molecules can be used for chemotherapy, since some of the cancers are more sensitive to repair impairment. Here, we performed a high-throughput chemical screen for FDA approved drugs, which affect HDR in cancer cells. We found that HDR frequencies are increased by retinoic acid and Idoxuridine and reduced by the antihypertensive drug Spironolactone. We further revealed that Spironolactone impairs Rad51 foci formation, sensitizes cancer cells to DNA damaging agents, to Poly (ADP-ribose) polymerase (PARP) inhibitors and cross-linking agents and inhibits tumor growth in xenografts, in mice. This study suggests Spironolactone as a new candidate for chemotherapy.
EP6A: Cross Platform Aspects of Simulation Science VR Simulators: Why High Fidelity is Not Always Better

Computer-based training systems offer an elegant solution to the current need for better training in Medicine, since realistic and configurable training environments can be created. However, in spite of the impressive developments in the field of medical simulation, some fundamental problems still hinder the acceptance of this valuable technology in daily clinical practice. In particular, the multidisciplinary aspect of medical simulation requires the integration, within a single environment, of leading-edge solutions in areas as diverse as visualization, biomechanical modeling, haptics, or contact modeling. This diversity of problems makes it challenging for researchers to make progress in specific areas, and leads rather often to duplication of efforts.
Endocytosis of sugars in embryonic skeletal tissues in organ culture. 3. Radioautographic distribution of [14C]sucrose.

Earlier experiments have shown that when limb-bone rudiments from 8½-day embryonic chicks are cultivated in medium containing an indigestible sugar, the perichondrial cells become intensely vacuolated, but this vacuolation does not appear in the chondrocytes, except in the articular region. Appleton9s radioautographic method for demonstrating water-soluble materials was used to study the uptake, distribution and loss of 14 C-labelled sucrose in 8½ limb-bone rudiments cultivated in a chemically defined medium (BGJ 5 ). After 48 h exposure to [ 14 C] sucrose, both perichondrium and cartilage were heavily labelled. When such explants were either washed for 1 h in BGJ 5 or cultivated for a further 24 h in non-radioactive medium, labelling was almost unaffected in the perichondrial cells but was greatly reduced in the cartilage, the cells of which were almost devoid of radioactivity. The presence in the medium of 0.08 M ‘cold’ sucrose did not alter the perichondrial grain counts in the washed explants. This finding supports the view that in the perichondrial cells sucrose is taken up non-specifically by endocytosis, arid that the intense vacuolation of the cytoplasm is due to abnormal persistence of the pinocytotic vesicles in the presence of the sugar. It is concluded that failure of the chondrocytes to take up sucrose is due, not to lack of penetration of the sugar into the cartilage, but to a weak endocytotic activity of the cells.
HLP: a next generation inter-domain routing protocol

It is well-known that BGP, the current inter-domain routing protocol, has many deficiencies. This paper describes a hybrid link-state and path-vector protocol called HLP as an alternative to BGP that has vastly better scalability, isolation and convergence properties. Using current BGP routing information, we show that HLP, in comparison to BGP, can reduce the churn-rate of route updates by a factor 400 as well as isolate the effect of routing events to a region 100 times smaller than that of BGP. For a majority of Internet routes, HLP guarantees worst-case linear-time convergence. We also describe a prototype implementation of HLP on top of the XORP router platform. HLP is not intended to be a finished and final proposal for a replacement for BGP, but is instead offered as a starting point for debates about the nature of the next-generation inter-domain routing protocol.
Detection of human T lymphotrophic virus type I (HTLV-I) proviral DNA and analysis of T cell receptor V beta CDR3 sequences in spinal cord lesions of HTLV-I-associated myelopathy/tropical spastic paraparesis

Identification of the localization of human T lymphotrophic virus type I (HTLV-I) proviral DNA in the central nervous system (CNS) is crucial to the understanding of the pathogenesis of HTLV-I-associated myelopathy (HAM)/tropical spastic paraparesis (TSP) pathogenesis. We have developed a sensitive detection method, called two-step polymerase chain reaction (PCR) in situ hybridization, which enabled us to detect the HTLV-I proviral DNA in paraffin-embedded spinal cord tissue sections from HAM/TSP patients. HTLV-I proviral DNA was detected only in the nucleus of lymphocytes that had infiltrated into the spinal cord. However, no proviral DNA was amplified in any neuronal cells, including neurons and glial cells. This indicates that the demyelination of the spinal cord by HTLV-I as a result of viral infection of oligodendrocytes or neuronal cells is unlikely. The T cell receptor V beta gene sequence from lymphocytes in the spinal cord lesions taken from the same HAM/TSP autopsy cases revealed unique and restricted CDR3 motifs, CASSLXG(G) (one-letter amino acid. X is any amino acid), CASSPT(G), and CASSGRL which are similar to those described in T cells from brain lesions of multiple sclerosis (MS) and in a rat T cell clone derived from experimental allergic encephalomyelitis (EAE) lesions. The present results suggest that T cells containing restricted V beta CDR3 motifs, which are also found in MS and EAE, become activated upon HTLV-I infection and infiltrate into the spinal cord lesions of HAM/TSP patients.
Explicit expressions for totally symmetric spherical functions and symmetry-dependent properties of multipoles

Closed expressions for matrix elements ⟨lm'|A(G)|lm⟩, where |lm⟩ are spherical functions and A(G) is the average of all symmetry operators of point group G, are derived for all point groups (PGs) and then used to obtain linear combinations of spherical functions that are totally symmetric under all symmetry operations of G. In the derivation, we exploit the product structure of the groups. The obtained expressions are used to explore properties of multipoles of symmetric charge distributions. We produce complete lists of selection rules for multipoles Ql and their moments Qlm, as well as of numbers of independent moments in a multipole, for any l and m and for all PGs. Periodicities and other trends in these properties are revealed.
Design of a Web-Based Application for Wireless Sensor Networks

Wireless sensor networks (WSNs) are used for various ubiquitous and pervasive environments. A few common applications are security, agriculture, automation, and environmental monitoring. This paper provides the software architecture and design to develop a Web-based application to query a wireless sensor network. A model-view-controller architecture is used to develop a generic Web-based application. This application can act as a template to develop a simple interactive Web-based tools for WSN-based technologies. The architecture is applied to design two monitoring protocols: continuous monitoring (CM) and query-based monitoring (QM). In CM, the application is designed for a specific query; however, in QM, the network is interactive and different queries can be sent
MIMO uplink NOMA with successive bandwidth division

Non-orthogonal multiple access (NOMA) is a key enabling technology for fifth generation (5G) wireless networks because of its ability to provide greater spectral efficiency. However, a conventional NOMA scheme offers significant interference and higher outage probability especially when the number of users in the network is large. Therefore, in this paper, we propose a suboptimal algorithm which uses the concept of successive bandwidth division (SBD) in NOMA system, which not only reduces the complexity of the receiver side to a great extent, but also enhances the overall signal-to-interference plus noise ratio (SINR) of the uplink NOMA by supporting 2N users with just N base station (BS) antennas. The BS is assumed to have perfect channel state information (CSI) and uses a zero-forcing (ZF) postcoding matrix to recover the signals of different users. Numerical results show that the performance of the proposed scheme outperforms the conventional NOMA techniques in terms of receiver complexity and outage probability.
A New Decentralized Fuzzy Model Reference Adaptive Controller for a Class of Large-scale Nonaffine Nonlinear Systems

This paper proposes a new method to design a decentralized fuzzy adaptive controller (FAC) for a class of large-scale nonaffine nonlinear systems in which functions of the systems and interactions are unknown. Comparing to previous paper which mainly concentrates on affine large-scale system (LSS), the proposed method is on nonaffine nonlinear LSS. The stability of the closedloop system is guaranteed based on Lyapunov theory. The proposed controller is robust against uncertainty and external disturbance. To show the effectiveness of the proposed method, an illustrative example is given. The simulation results are very promising.
Generative Models for Statistical Parsing with Combinatory Categorial Grammar

This paper compares a number of generative probability models for a wide-coverage Combinatory Categorial Grammar (CCG) parser. These models are trained and tested on a corpus obtained by translating the Penn Treebank trees into CCG normal-form derivations. According to an evaluation of unlabeled word-word dependencies, our best model achieves a performance of 89.9%, comparable to the figures given by Collins (1999) for a linguistically less expressive grammar. In contrast to Gildea (2001), we find a significant improvement from modeling word-word dependencies.
Structure-Constrained Low-Rank Representation

Benefiting from its effectiveness in subspace segmentation, low-rank representation (LRR) and its variations have many applications in computer vision and pattern recognition, such as motion segmentation, image segmentation, saliency detection, and semisupervised learning. It is known that the standard LRR can only work well under the assumption that all the subspaces are independent. However, this assumption cannot be guaranteed in real-world problems. This paper addresses this problem and provides an extension of LRR, named structure-constrained LRR (SC-LRR), to analyze the structure of multiple disjoint subspaces, which is more general for real vision data. We prove that the relationship of multiple linear disjoint subspaces can be exactly revealed by SC-LRR, with a predefined weight matrix. As a nontrivial byproduct, we also illustrate that SC-LRR can be applied for semisupervised learning. The experimental results on different types of vision problems demonstrate the effectiveness of our proposed method.
BalloonSat: Design, Implementation, and Application of a Low-cost Tethered Weather Balloon Remote Sensing Station

Design, implementation, and applications of a low-cost tethered helium-filled weather balloon remote sensing station called BalloonSat is discussed. BalloonSat remote sensing station has been designed, implemented, and continuously upgraded and improved by Cal Poly students in the remote sensing course taught by Dr. John Saghri over the past few years. BalloonSat provides the raw multi­
A Control Strategy with Tactile Perception Feedback for EMG Prosthetic Hand

To improve the control effectiveness and make the prosthetic hand not only controllable but also perceivable, an EMG prosthetic hand control strategy was proposed in this paper. The control strategy consists of EMG self-learning motion recognition, backstepping controller with stiffness fuzzy observation, and force tactile representation. EMG self-learning motion recognition is used to reduce the influence on EMG signals caused by the uncertainty of the contacting position of the EMG sensors. Backstepping controller with stiffness fuzzy observation is used to realize the position control and grasp force control. Velocity proportional control in free space and grasp force tracking control in restricted space can be realized by the same controller. The force tactile representation helps the user perceive the states of the prosthetic hand. Several experiments were implemented to verify the effect of the proposed control strategy. The results indicate that the proposed strategy has effectiveness. During the experiments, the comments of the participants show that the proposed strategy is a better choice for amputees because of the improved controllability and perceptibility.
Material and Elastic Properties of Al-Tobermorite in Ancient Roman Seawater Concrete

This research was supported by Award No. KUS-l1-004021, from King Abdullah University of Science and Technology (KAUST). Data were acquired at beamlines 12.2. 2 and 12.3. 2 at the Advanced Light Source at the Lawrence Berkeley Laboratories, supported by the Director of the Office of Science, Department of Energy, under Contract No. DE-AC02-05CH11231, and the Advanced Nanofabrication Imaging and Characterization Laboratories at King Abdullah University of Science and Technology. We thank CTG Italcementi researchers and staff, especially B. Zanga, in Bergamo, Italy; G. Vola at Cimprogetti S.p.A. , Dalmine, Italy; S. Clark at the 12.2. 2 beamline; and N. Tamura at the 12.3. 2 beamline; and the ROMACONS drilling program: J. P. Oleson, C. Brandon, R. Hohlfelder. T. Teague, D. Hernandez, C. Hargis, I. A. Delaney, and B. Black provided research support. We thank J. G. Moore, M. Sintubin, G. Sposito, P.-A. Itty, and J. Kirz for critical discussions, and three anonymous reviewers whose comments improved the manuscript.
Mechanical Properties of Ternary Blends of ABS + HIPS + PETG

The effect of a commercial styrene/butadiene/styrene-based compatibilizer (Styroflex) on the tensile and impact properties of ternary blends of poly(acrylonitrile-co-butadiene-co-styrene) (ABS), high impact poly(styrene) (HIPS) and poly(ethylene terephthalate-co-cyclohexanedimethanol terephthalate) (PETG) was investigated. The tensile yield strengths and the moduli of the blends were of similar magnitude as the parent polymers. However, notched Charpy impact properties showed significant deviations with high synergy in ABS/PETG blends and strong antagonism in HIPS/PETG blends. Addition of Styroflex improved the impact properties of all blends containing HIPS and ABS. Dynamic mechanical analysis studies confirm the phase separated nature of ABS/PETG binary blends.
Effects of Interfacial Friction on Composites Containing Nanotube Ropes

The present paper develops a constitutive model for the elastic modulus and energy loss of CNT-based polymeric composites. In this study, a close-packed lattice consisting of seven nanotubes in hexagonal arrangement is used to model single-walled carbon nanotubes often found in rope-like bundles in polymers. The composite is described using a multi-phase system composed of a resin and bonded and debonded nanotube ropes. The concept of "stick-slip" motion caused by frictional contacts is proposed to describe the load transfer behavior among the nanotubes and between the nanotube ropes and resin. A micromechanical model is developed to describe inter-tube and tube/resin frictional motions. Modulus change and energy dissipation due to the "stick-slip" interfacial load transfer are determined. The developed method is used to analyze composites with aligned nanotube ropes. The analytical study shows that mechanical properties can be significantly affected by adding small fractions of carbon nanotubes in polymers. The elastic modulus and loss factor are both strain-dependent. Also, to show the inter-tube sliding effects due to nanotube aggregation, results obtained for the composites filled with well-dispersed nanotubes and nanotube ropes are compared.
Using Ensemble Models in the Histological Examination of Tissue Abnormalities

Classification models for the automatic detection of abnormalities on histological samples do exists, with an active debate on the cost associated with false negative diagnosis (underdiagnosis) and false positive diagnosis (overdiagnosis). Current models tend to underdiagnose, failing to recognize a potentially fatal disease. The objective of this study is to investigate the possibility of automatically identifying abnormalities in tissue samples through the use of an ensemble model on data generated by histological examination and to minimize the number of false negative cases.