gebhart/patrepeval huggingface dataset:
Multi-Resolution Codebook Based Beamforming Sequence Design in Millimeter-Wave Systems (2015)

There is growing interest in using millimeter wave (mmWave) communication for fifth generation (5G) wireless systems because of the large bandwidth available in these frequencies. To overcome the higher path loss at mmWave bands, highly directional beamforming using large-scale, or massive, multiple-input multiple-output (MIMO) systems is critical. In this scenario, the problem of channel estimation becomes challenging due to the substantial training overhead needed to sound all possible beam directions using a high-resolution narrow beam. To tackle the issue of beam search in a mmWave system, we consider the use and design of multi-resolution beamforming sequences, which can quickly search out the dominant channel direction in a bisection manner. Given the multi-resolution codebook, the proposed multi-resolution beamforming sequence is designed to strike a balance between minimizing the training overhead and maximizing beamforming gain. We discuss how the multi-resolution codebook can be designed using a phase-shifted version of a {\em discrete Fourier transform} (DFT) matrix. Numerical results show the effectiveness of the proposed algorithm.
Puppeteer: De-centralized platform for connected-yet-autonomous educational toys (2018)

The ubiquity of toys viz-a-viz children and their close relationship have been leveraged by academics and industry alike to provide applications and services through these toys. Many domains such as healthcare, medical intervention, entertainment, education have all benefited from smart toys which could sense their context and/or perform actuation tasks such as conversations, support etc. However, state-of-the-art toy systems lack connected-yet-autonomous behavior and hence are unable to perform coordinated tasks which could facilitate complex interactions especially in education. Few such activities that require complex multi-toy coordination and interaction are teaching social skills such as social etiquettes, morals and group conversations; as well as cognitive skills such as counting, pattern identification, grouping etc. This paper is a first effort towards generating interest and discussion around this interesting area of using multiple connected toys for learning. In this paper, we propose Puppeteer, a decentralized orchestrator platform to enable coordinated yet autonomous multi-toy behavior which provides seamless coordination between toys, and a declarative mechanism to author and adapt learning scenarios for enactment. We evaluate this system through simulations and real-world prototype experiments, and report its performance.
Random access techniques for data transmission over packet-switched radio channels (1975)

On the other hand, digital (pulse) systems using radio propagation are not new-e.g., telegraphy, radar, etc.Here we restrict our comments to addressed packets.The most well known example of a packet switched wire network is the ARPANET."* See References 14 and 15 for proof and for the definition of m(0, T m ), B and /. * The bandwidth is assumed to be modulated a 1 bit/Hz-sec.t This corresponds to a maximum distance of about 20 miles.The ratio of propagation delay to transmission time of a packet, denoted by a, is, in all cases less than (but very close to) or equal to 0.01.
Self‐Supported Construction of Uniform Fe<sub>3</sub>O<sub>4</sub> Hollow Microspheres from Nanoplate Building Blocks (2013)

As alike as two peas in a pod: Hollow iron-containing microspheres composed of nanoplate-like building blocks were synthesized by a straightforward strategy and readily converted into magnetic Fe3O4 hollow microspheres (see images) without noticeable structural deformation. These Fe3O4 microspheres exhibited high reversible capacity and excellent cycling performance when evaluated as an anode material for lithium-ion batteries. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
ACIGA's high optical power test facility (2004)

Advanced laser interferometer detectors utilizing more than 100 W of laser power and with ∼106 W circulating laser power present many technological problems. The Australian Consortium for Interferometric Gravitational Astronomy (ACIGA) is developing a h
Different interactions of human and bovine serum albumin with Cibacron Blue and Blue Dextran. (1982)

The interaction of human and bovine serum albumin with Cibacron Blue and Blue Dextran in aqueous solution was studied by means of difference spectroscopy. Both human and bovine albumin interact strongly with underivatized Cibacron Blue in three independent binding sites (K = 105). On the contrary, Blue Dextran interacts strongly only with human albumin, but does not bind appreciably to bovine albumin. These results suggest that the binding sites are exposed and easily accessible in human albumin, while in bovine albumin they are sterically hindered and therefore not accessible to the bulky Blue Dextran.
Caffeine induces uncoordinated expression of cell cycle functions after ultraviolet irradiation: Accelerated cycle transit, sister chromatid exchanges and premature chromosome condensation in a transformed indian muntjac cell line (1988)

Caffeine enhances the lethal effect of DNA-damaging agents. It also affects the timing of events in the cell cycle; the enhanced cytotoxicity may be partly due to caffeine's ability to overcome the protective damage-induced delay in S or G2 phase. When the effects of caffeine are compared in a normal Indian muntjac cell line and a simian virus 40 (SV40)-transformed, ultraviolet light (u.v.)-sensitive line in which u.v. induces many sister chromatid exchanges, different cell cycle sensitivities are seen. In the SV40-transformed line, caffeine over-rides the delay in DNA synthesis imposed by DNA damage; it initiates late cycle events after u.v. irradiation, and in some cases it induces S-phase premature chromosome condensation, apparently by inducing mitotic factors in cells where the chromatin is still replicating. Caffeine has been reported to induce similar premature chromosome condensation in cells arrested with DNA polymerase inhibitors; this is the first recognition that such events occur in response to caffeine treatment after DNA damage. Some apparent paradoxes of caffeine's action on irradiated cells can be thus explained. In the normal line, caffeine neither affects progression through the cycle nor induces premature chromosome condensation after irradiation. In both lines, caffeine increases killing and sister chromatid exchanges after u.v. irradiation; but these effects are more pronounced when exerted through the cell cycle-related mechanism.
The Cell and Molecular Basis of Mechanical, Cold, and Inflammatory Pain (2008)

Peripheral pain pathways are activated by a range of stimuli. We used diphtheria toxin to kill all mouse postmitotic sensory neurons expressing the sodium channel Nav1.8. Mice showed normal motor activity and low-threshold mechanical and acute noxious heat responses but did not respond to noxious mechanical pressure or cold. They also showed a loss of enhanced pain responses and spontaneous pain behavior upon treatment with inflammatory insults. In contrast, nerve injury led to heightened pain sensitivity to thermal and mechanical stimuli indistinguishable from that seen with normal littermates. Pain behavior correlates well with central input from sensory neurons measured electrophysiologically in vivo. These data demonstrate that Na(v)1.8-expressing neurons are essential for mechanical, cold, and inflammatory pain but not for neuropathic pain or heat sensing.
Efficient methods for encoding regions of interest in the upcoming JPEG2000 still image coding standard (2000)

The general method for generating the regions of interest (ROI) mask needed for encoding ROI in the upcoming JPEG2000 still image coding standard is presented. A simple method for the generation of the ROI mask for rectangular-shaped ROI is then proposed. Finally, to simplify the decoder when dealing with arbitrary shaped ROIs, a method for ROI coding that does not require any shape information to be transmitted to the decoder is described. A small coding penalty is associated with this method, while it makes it possible to have arbitrarily shaped ROI without the need of shape information and ROI mask generation at the decoder. The proposed methods have been included in the Final Committee Draft of JPEG2000 Part 1.
Acid stress response in enteropathogenic gammaproteobacteria: an aptitude for survivalThis paper is one of a selection of papers published in this special issue entitled “Canadian Society of Biochemistry, Molecular & Cellular Biology 52nd Annual Meeting — Protein Folding: Principles and Diseases” and has undergone the Journal's usual peer review process. (2010)

Enteric bacteria such as Escherichia coli have acquired a wide array of acid stress response systems to counteract the extreme acidity encountered when invading the host's digestive or urinary tracts. These acid stress response systems are both enzyme and chaperone based. The 3 main enzyme-based acid resistance pathways are glutamate-, arginine-, and lysine-decarboxylase pathways. They are under a complex regulatory network allowing the bacteria to fine tune its response to the external environment. HdeA and HdeB are the main chaperones involved in acid stress response. The decarboxylase systems are also found in Vibrio cholera, Vibrio vulnifus, Shigella flexneri, and Salmonella typhimurium, although some differences exist in their functional mechanism and regulation.
Polycarbazoles: 25 Years of Progress (2005)

Abstract Summary: Carbazole‐based oligomeric and polymeric materials have been studied for almost 25 years for their unique electrical, electrochemical and optical properties. Interestingly, carbazole units can be linked in two different ways leading to either poly( 3,6 ‐carbazole) or poly( 2,7 ‐carbazole) derivatives. While the former class seems to be very interesting for electrochemical and phosphorescence applications, the latter shows very promising optical properties in the visible range for light emitting diodes (LED). The major intrinsic difference between these two classes is the effective conjugation length: poly(2,7‐carbazole) materials having the longer one, due to their poly( p ‐phenylene)‐like structure. Using different synthetic strategies and substitution patterns, the physico‐chemical properties of both classes can be fine‐tuned, leading to high performance materials for a large number electronic applications. Chemical structures for poly(3,6‐carbazole) and poly(2,7‐carbazole) and the materials used as the starting points for their respective syntheses. magnified image Chemical structures for poly(3,6‐carbazole) and poly(2,7‐carbazole) and the materials used as the starting points for their respective syntheses.
Challenges & Opportunities for Blockchain Powered Healthcare Systems: A Review (2017)

Blockchain, the technology that began with Bitcoin in 2009, today promises to provide the safe, interoperable sharing of real-time data between providers, payers and patients in the healthcare industry. Majorly, blockchain's automated data verification capabilities, in particular, are able to resolve many of the trust issues regarding pulling data from disparate sources. Applications of the technology in healthcare shows promise for solving issues such as its used in EHR distribution of data and nationwide interoperability. The use of blockchain in healthcare is expected to reinvent the ecosystem in limitless ways to benefit the patient and advancements in treatments, outcomes, security and costs. In effect, blockchain technology has the potential to transform healthcare delivery, placing patient at the center of the healthcare ecosystems and the capability to increase the security, privacy, and interoperability of healthcare data. It’s envisaged that this technology is expected to provide a new model for health information exchanges (HIE) by making electronic medical records more efficient, disintermediated, and secure. One of blockchain technology’s core offerings that make it a no-brainer for supply chains across industries is its immutable, time-stamped, tamper-proof ledger, accessible by its all or pre-approved participants. In this review paper we’re to step through how blockchain aid in the providing efficiency, security and privacy to management of patient care.
Surface Treatments to Reduce Friction: Rubber Glove Applications (1990)

Abstract The frictional properties of rubber surfaces modified by various treatments have been investigated in order to understand the factors which reduce the friction and give the surface appropriate qualities for practical use. The study was in two stages. Initial measurements were made on thin sheets of hot-vulcanized natural rubber; then followed tests on latex glove material to see how the initial results and understanding related to the application. Measurements of friction coefficient were made against a wavy glass plate, giving reproducible results, and against finger skin. Supplementary measurements were made of surface roughness and hardness, liquid contact angle, and water absorption. Factors of importance in the reduction of dry friction were found to be an increased surface roughness and hardness. In practice, difficulties may be experienced under slightly wet or damp conditions, which can increase the friction above the dry value. Here it was found to help if the surface treatment could absorb water. For surgeons' gloves in contact with moist skin, one particular treatment, a hydrogel polymer coating, gave the necessary surface roughness, hardness, and water absorptivity, making the gloves easy to don and pleasant to wear.
Effects of Amplitude Distortion upon the Intelligibility of Speech (1946)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation J. C. R. Licklider; Effects of Amplitude Distortion upon the Intelligibility of Speech. J Acoust Soc Am 1 October 1946; 18 (2): 429–434. https://doi.org/10.1121/1.1916383 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
Physiology of Blood Coagulation (1990)

Blood coagulation forms part of an integrated series of haemostatic reactions, involving plasma, platelet, and vascular components. Platelets adhere to damaged endothelium or to subendothelium under the influence of adhesive proteins, and when activated they aggregate and expose binding sites for coagulation factors. Platelets, therefore, act as vehicles to concentrate and potentiate coagulation reactions on the damaged vessels. Following interaction of the 'contact' factors XII and XI, the coagulation protease zymogens undergo sequential activation, resulting in the generation of thrombin, the conversion of fibrinogen to fibrin, and the formation of a platelet-fibrin haemostatic plug. The fibrinolytic system interacts to regulate fibrin deposition and removal during healing. Central to coagulation is the generation of thrombin. It is involved in promoting haemostatic reactions as well as a number of protective functions. The activities of thrombin and other serine proteases are modulated by the serine protease inhibitors (serpins), including antithrombin III and heparin cofactor II which are important in regulating the physiological anticoagulant action of glycosaminoglycans at the endothelium and the pharmacological action of heparin. Reduction of the formation or function of thrombin and other serine proteases is one of the primary aims of anticoagulant therapy.
CD146 is a novel marker for highly tumorigenic cells and a potential therapeutic target in malignant rhabdoid tumor (2016)

Malignant rhabdoid tumor (MRT) is a rare, highly aggressive pediatric malignancy that primarily develops during infancy and early childhood. Despite the existing standard of intensive multimodal therapy, the prognosis of patients with MRT is dismal; therefore, a greater understanding of the biology of this disease is required to establish novel therapies. In this study, we identified a highly tumorigenic sub-population in MRT, based on the expression of CD146 (also known as melanoma cell adhesion molecule), a cell adhesion molecule expressed by neural crest cells and various derivatives. CD146<sup>+</sup> cells isolated from four MRT cell lines by cell sorting exhibited enhanced self-renewal and invasive potential in vitro. In a xenograft model using immunodeficient NOD/Shi-scid IL-2Rγ-null mice, purified CD146<sup>+</sup> cells obtained from MRT cell lines or a primary tumor exhibited the exclusive ability to form tumors in vivo. Blocking of CD146-related mechanisms, either by short hairpin RNA knockdown or treatment with a polyclonal antibody against CD146, effectively suppressed tumor growth of MRT cells both in vitro and in vivo via induction of apoptosis by inactivating Akt. Furthermore, CD146 positivity in immunohistological analysis of 11 MRT patient samples was associated with poor patient outcomes. These results suggest that CD146 defines a distinct sub-population in MRT with high tumorigenic capacity and that this marker represents a promising therapeutic target.
Procedure to reduce sulphite in wine with anion-exchange resin (2013)

The aim of this experiment was to eliminate SO2 ions present in wine using the anion-exchanger resins. To compare the effectiveness, 2 following strongly basic anion-exchange resin were used. When activated, the sodium bicarbonate solution (activation solution I) is used to prevent parallel reduction of sulphites, tartates and malates, so the anion-exchange resins were activated in two-step activation. In the second step, it was immersed into a mixture of malic acid and tartaric acid (1:1). After the application of anex into wine, the content of total SO2 was reduced to 97-201 mg.L-1 (depending on the amount of anex added into the wine sample). According to our expectations, the variants with anion-exchange resin activated only with bicarbonate solution, the tartrates and malates were significantly reduced. If the anion-exchange resin was activated with a two-steps activation, the tartaric acid and malic acid were reduced in the range of ± 0.13 g.L-1. This phenomenon was strongly reflected at the anion-exchanger Aqua Osmotic 02. The changes in antioxidant content were not affected by the type of anion-exchange resin, the method of activation, or an amount of used anion-exchanger. The color parameters of wine, expressed by the L * a * b *, were not significantly affected by the effects of anion-exchange resin use.
Rubinstein-Taybi syndrome (1993)

The Rubinstein-Taybi syndrome is a classical multiple congenial anomaly syndrome. The classical gestalt is striking and poses few diagnostic problems, but sometimes diagnosis is extremely difficult. In this paper the change in facial appearance on affected individuals is demonstrated, to improve insight into the evolution of the phenotype and to increase its diagnositc potential.
Interplay between Virus-Specific Effector Response and Foxp3+ Regulatory T Cells in Measles Virus Immunopathogenesis (2009)

Measles is a highly contagious childhood disease associated with an immunological paradox: although a strong virus-specific immune response results in virus clearance and the establishment of a life-long immunity, measles infection is followed by an acute and profound immunosuppression leading to an increased susceptibility to secondary infections and high infant mortality. In certain cases, measles is followed by fatal neurological complications. To elucidate measles immunopathology, we have analyzed the immune response to measles virus in mice transgenic for the measles virus receptor, human CD150. These animals are highly susceptible to intranasal infection with wild-type measles strains. Similarly to what has been observed in children with measles, infection of suckling transgenic mice leads to a robust activation of both T and B lymphocytes, generation of virus-specific cytotoxic T cells and antibody responses. Interestingly, Foxp3(+)CD25(+)CD4(+) regulatory T cells are highly enriched following infection, both in the periphery and in the brain, where the virus intensively replicates. Although specific anti-viral responses develop in spite of increased frequency of regulatory T cells, the capability of T lymphocytes to respond to virus-unrelated antigens was strongly suppressed. Infected adult CD150 transgenic mice crossed in an interferon receptor type I-deficient background develop generalized immunosuppression with an increased frequency of CD4(+)CD25(+)Foxp3(+) T cells and strong reduction of the hypersensitivity response. These results show that measles virus affects regulatory T-cell homeostasis and suggest that an interplay between virus-specific effector responses and regulatory T cells plays an important role in measles immunopathogenesis. A better understanding of the balance between measles-induced effector and regulatory T cells, both in the periphery and in the brain, may be of critical importance in the design of novel approaches for the prevention and treatment of measles pathology.
Cell type-specific expression of JC virus early promoter is determined by positive and negative regulation (1989)

We analyzed control sequences of the human papovavirus JC virus (JCV) to define the cis-acting elements that regulate specific expression of the viral early region genes in glial cells. Nuclear run-on transcription, S1 analysis, and chloramphenicol acetyltransferase enzyme activity in a transient transfection assay established that the cell type-specific expression of JCV early genes is determined at the transcriptional level. Using DNase footprinting analysis of nuclear proteins prepared from glial and nonglial cells, we located four regions within the JCV control sequences that specifically interacted with the proteins. In glial cells, all four domains contributed to the specific expression of a heterologous promoter, whereas in nonglial cells, two protein-binding regions showed no effect on basal transcriptional activity and the other two domains significantly downregulated transcription of the promoter. We conclude that cell type-specific transcription of the JCV early promoter is under both positive and negative regulation in eucaryotic cells.
Error Auto-Compensation Methods of Improved Single-Axial Rotation INS (2013)

An Auto-Compensation of inertial navigation system (INS) based on improved single-axis rotation has been proposed in the paper. Inertial Measurement Unit (IMU) is tilt mounted, e.g. neither perpendicularly, nor coaxially, with the rotation axis. Analysis and derivation show that this angle arrangement of IMU can restrain the expansion of the system errors caused by IMU. Simulations demonstrated the coincidence of the theoretical analysis and the system performances