gebhart/patrepeval huggingface dataset:
Investigating drone motion as pedestrian guidance (2017)

Flying drones have the potential to act as navigation guides for pedestrians, providing more direct guidance than the use of handheld devices. Rather than equipping a drone with a display or indicators, we explore the potential for the drone's movements to communicate the route to the walker. For example, should the drone maintain a constant distance a few meters in front of the pedestrian, or should it position itself further along the navigation route, acting as a beacon to walk towards? We created a set of flying drone gestures and evaluated them in an online survey (n = 100) and an in-the-wild user test (n = 10) where participants were guided on a walking route by a flying drone. As a result, we propose an initial set of drone gestures for pedestrian navigation and provide further design recommendations.
Fast and robust video clip search using index structure (2004)

Content based retrieval of similar multimedia objects (e.g. images, text, and videos) is an important research issue in the field of multimedia database. In this demo, we present a fast and robust video clip searching system. This system consists of two major modules, namely, robust video representation and fast searching. Different from traditional key frame-based histogram methods, we employ the cumulative histogram to represent the ordinal features and color range features for a video segment. This representation provides a spatio-temporal description of the whole segment. Our experiment has shown it is effective for capturing the patterns of short video clips such as commercial, program lead in/out, flying logo in sports video, etc. In order to improve the performance in searching large video database, we introduce the index structure to deal with video search from the viewpoint of query processing (e.g. <i>K-NN query, Range query</i>, etc.) in high-dimensional spaces. Different query processing support different search tasks. In this demo, we employ the mrkd-tree index structure and the proposed video representation to fulfill fast and robust search of short video clips (i.e. news video lead-in/out, replay logo, commercial) in large video collections with the total length of 15 hours.
Lateritin, a new inhibitor of acyl-CoA: cholesterol acyltransferase produced by Gibberella lateritium IFO 7188. (1993)

A new inhibitor of acyl-CoA:cholesterol acyltransferase (ACAT), designated lateritin, was isolated from the mycelial cake of Gibberella lateritium IFO 7188 by successive purification procedure of solvent extraction, silica gel column chromatography and reverse phase HPLC. Spectroscopic analyses of the compound yielded 4-methyl-6-(1-methylethyl)-3-phenylmethyl-1,4-perhydrooxazine-2,5- dione as the proposed structure. Lateritin inhibited rat liver ACAT activity by 50% at a concentration of 5.7 microM. This inhibition was time-dependent and irreversible.
Liquid-crystalline compounds containing tricyclo(4.4.0.0<sup>3,8</sup>)-decane (twistane) and spiro (3.3) heptane ring systems (1987)

Abstract A new series of liquid-crystalline materials containing the tricycle (4.4.0.03,8)-decane (twistane) and further examples of materials containing the spiro (3,3) heptane system have been prepared and their thermal properties examined. The mesomorphic properties are compared with those of the benzene, trans-cyclohexane and bicycle (2.2.2) octane derivatives. The replacement of the benzene ring in related compounds by the twistane ring results in a lowering of the melting and the clearing points as well as a narrowing of the mesophase interval. The esters of spiro (3, 3) heptane prepared exhibit smectic mesophases with a narrow temperature interval.
Broadband RF front-end based on the six-port network architecture for software defined radio (2010)

This paper presents a Software Defined Radio (SDR) six-port receiver for a novel broadband mobile communications system. The prototype covers the frequency range from 700 MHz to 6 GHz, and operates with up to 100 MHz-wide channels. We have validated the prototype with several types of modulation schemes at different frequency bands. The six-port receiver has been satisfactory proved for data rates up to 75 Mb/s (limited by the available test instruments). The measured results show good performance of the implemented six-port receiver.
Design and implementation of a scalable parallel system for multidimensional analysis and OLAP (2003)

Multidimensional Analysis and On-Line Analytical Processing (OLAP) uses summary information that requires aggregate operations along one or more dimensions of numerical data values. Query processing for these applications require different views of data for decision support. The Data Cube operator provides multi-dimensional aggregates, used to calculate and store summary information on a number of dimensions. The multi-dimensionality of the underlying problem can be represented both in relational and multi-dimensional databases, the latter being a better fit when query performance is the criteria for judgment. Relational databases are scalable in size and efforts are on to make their performance acceptable. On the other hand multi-dimensional databases perform well for such queries, although they are nor very scalable. Parallel computing is necessary to address the scalability and performance issues for these data sets. In this paper we present a parallel and scalable infrastructure for OLAP and multidimensional analysis. We use chunking to store data either as a dense block using multidimensional arrays (md-arrays) or a sparse set using a Bit encoded sparse structure (BESS). Chunks provide a multidimensional index structure for efficient dimension oriented data accesses much the same as md-arrays do. Operations within chunks and between chunks are a combination of relational and multi-dimensional operations depending on whether the chunk is sparse or dense. We present performance results for data sets with 3, 5 and 10 dimensions for our implementation on the IBM SP-2 which show good speedup and scalability.
The Anti-Inflammatory and Proresolving Mediator Resolvin E1 Protects Mice from Bacterial Pneumonia and Acute Lung Injury (2009)

Whereas pneumonia is the most common cause of death and disability worldwide, most cases of pneumonia spontaneously resolve. Mechanisms that promote pneumonia resolution remain to be determined. Resolvin E1 (RvE1) is an endogenous mediator that displays proresolving actions in sterile inflammation. In this study, we developed a new model of aspiration pneumonia to evaluate the effect of RvE1 on acute lung injury caused by acid aspiration and subsequent bacterial challenge. Mice received hydrochloric acid into the left lung followed by the enteric pathogen Escherichia coli. I.v. administration of RvE1 (approximately 0.005 mg/kg) prior to acid injury selectively decreased lung neutrophil accumulation by 55% and enhanced clearance of E. coli. RvE1 significantly decreased lung tissue levels of several proinflammatory chemokines and cytokines, including IL-1beta, IL-6, HMGB-1, MIP-1alpha, MIP-1beta, keratinocyte-derived chemokine, and MCP-1, in a manner independent of the anti-inflammatory mediators IL-10 and lipoxin A4. In addition, animals treated with RvE1 had a marked improvement in survival. These findings in experimental aspiration pneumonia have uncovered protective roles for RvE1 in pathogen-mediated inflammation that are both anti-inflammatory for neutrophils and protective for host defense, suggesting that RvE1 represents the first candidate for a novel therapeutic strategy for acute lung injury and pneumonia that harnesses natural resolution mechanisms.
Fermentation-Derived Insect Control Agents: The Spinosyns (2003)

Many insect pests present an ongoing battle between the grower’s ability to control the pest and the pest’s ability to resist the available control methods Several well-known examples include the Colorado potato beetle on potatoes, the diamondback moth on vegetable crops, and the Hehothis complex on cotton. The discovery of new, novel insect control agents for use against these and other insect pests has served as a focal point for insecticide research for more than four decades
Potential New Anti-Human Immunodeficiency Virus Type 1 Compounds Depress Virus Replication in Cultured Human Macrophages (2004)

We report that the amiloride analogues 5-(N,N-hexamethylene)amiloride and 5-(N,N-dimethyl)amiloride inhibit, at micromolar concentrations, the replication of human immunodeficiency virus type 1 (HIV-1) in cultured human blood monocyte-derived macrophages. These compounds also inhibit the in vitro activities of the HIV-1 Vpu protein and might represent lead compounds for a new class of anti-HIV-1 drugs.
ApproxLP (2019)

In a data hungry world, approximate computing has emerged as one of the solutions to create higher energy efficiency and faster systems, while providing application tailored quality. In this paper, we propose ApproxLP, an Approximate Multiplier based on Linear Planes. We introduce an iterative method for approximating the product of two operands using fitted linear functions with two inputs, referred to as linear planes. The linearization of multiplication allows multiplication operations to be completely replaced with weighted addition. The proposed technique is used to find the significand of the product of two floating point numbers, decreasing the high energy cost of floating point arithmetic. Our method fully exploits the trade-off between accuracy and energy consumption by offering various degrees of approximation at different energy costs. As the level of approximation increases, the approximated product asymptotically approaches the exact product in an iterative manner. The performance of ApproxLP is evaluated over a range of multimedia and machine learning applications. A GPU enhanced by ApproxLP yields significant energy-delay product (EDP) improvement. For multimedia, neural network, and hyperdimensional computing applications, ApproxLP offers on average 2.4×, 2.7×, and 4.3× EDP improvement respectively with sufficient computational quality for the application. ApproxLP also provides up to 4.5× EDP improvement and has 2.3× lower chip area than other state-of-the-art approximate multipliers.
Campo de visión: una mejor forma para enfocar los mercados de China (2010)

La mayoria de las empresas ingresa a los mercados chinos usando una estrategia de segmentacion por niveles, categorizando a las ciudades por su tamano y riqueza. Eso es un error. Las mas de 800 ciudades de China, de las cuales 200 superan el millon de habitantes, estan creciendo a ritmos
distintos y cambiando de maneras diferentes. Ciudades que tienen la misma cantidad de gente pueden ser tan diferentes entre si como Francia y Alemania en sus perfiles demograficos y en las actitudes de sus consumidores.
Development Status of Microchannel Plate Photomultipliers (1977)

A microchannel plate (MCP) has several hundred thousand channels, each of which functions as an electron multiplier. A photomultiplier can be constructed by using a photocathode, MCP and an anode. The overall performance is expected to be superior to the best available photomultipliers. Gains of 103 - 107 can be obtained with timing and spatial resolutions of 100 psec and 25 μm respectively. Two dimentional readouts are possible. A review of the applications and development status of this device is presented.
DBFT: Efficient Leaderless Byzantine Consensus and its Application to Blockchains (2018)

This paper introduces a new leaderless Byzantine consensus called the Democratic Byzantine Fault Tolerance (DBFT) for blockchains. While most blockchain consensus protocols rely on a correct leader or coordinator to terminate, our algorithm can terminate even when its coordinator is faulty. The key idea is to allow processes to complete asynchronous rounds as soon as they receive a threshold of messages, instead of having to wait for a message from a coordinator that may be slow. The resulting decentralization is particularly appealing for blockchains for two reasons: (i) each node plays a similar role in the execution of the consensus, hence making the decision inherently “democratic” (ii) decentralization avoids bottlenecks by balancing the load, making the solution scalable. DBFT is deterministic, assumes partial synchrony, is resilience optimal, time optimal and does not need signatures. We first present a simple safe binary Byzantine consensus algorithm, modify it to ensure termination, and finally present an optimized reduction from multivalue consensus to binary consensus whose fast path terminates in 4 message delays.
Characteristic Sliding Frictional Behavior on the Surface of Nanocomposite Hydrogels Consisting of Organic‐Inorganic Network Structure (2005)

Abstract Summary: Sliding frictional behavior on the surface of novel nanocomposite hydrogels (NC gels), composed of poly( N ‐isopropylacrylamide) and exfoliated clay, was investigated and compared with that of conventional chemically‐crosslinked hydrogels (OR gels). Since OR gels are so weak, the sliding test, in general, could not be carried out on their surfaces except when wet. On the contrary, NC gels can withstand sliding friction under high loading and it was found that the frictional forces are sensitive to the environmental surroundings (wet or in‐air), the gel composition (water, clay contents), and loading. In air, NC gels exhibit a characteristic force profile with a maximum static frictional force (max‐SFF) and subsequent constant dynamic frictional force. In contrast, NC gels exhibit very low frictional forces under wet conditions. The change in frictional force with surroundings was very distinctive for NC gels, particularly for those with low clay contents. Max‐SFF for NC1 gel decreased more than 100‐fold by changing the environment from in‐air to wet. The characteristic sliding frictional behaviors are explained on the basis of a unique organic/inorganic network structure of NC gels. The model of sliding process on NC gel and effects of clay content of NC gels on the sliding frictional behavior. magnified image The model of sliding process on NC gel and effects of clay content of NC gels on the sliding frictional behavior.
Mutational mapping of RAS-responsive domains of the Saccharomyces cerevisiae adenylyl cyclase. (1990)

Large deletion and small insertion mutations in the adenylyl cyclase gene of Saccharomyces cerevisiae were used to map regions required for activation by RAS protein in vitro. The amino-terminal 605 amino acids were found to be dispensable for responsiveness to RAS protein. All other deletions in adenylyl cyclase destroyed its ability to respond to RAS. Small insertion mutations within the leucine-rich repeat region also prevented RAS responsiveness, while other insertions did not.
Adsorptive Distillation Using Molecular Sieves and Low-Cost Biobased Adsorbents for the Break-up of the Isopropanol–Water Azeotrope (2003)

The separation of isopropanol from aqueous vapours near the azeotropic composition was investigated using fixed beds packed with type A molecular sieves and biobased adsorbents. Natural palm stones, oak and corncobs were used as new biobased adsorbents. It was possible to break the azeotrope up using any of the afore-mentioned adsorbents. However, in terms of the breakthrough time and the purity of isopropanol in the condensate, the 3 Å molecular sieve was the best followed by 4 Å, palm stones, natural corncobs, natural oak and 5 Å molecular sieves. Activated carbons prepared from the biobased adsorbents showed a lower performance than their natural precursors.
Targeting acute myeloid leukemia stem cell signaling by natural products (2017)

Acute myeloid leukemia (AML) is the most commonly diagnosed leukemia in adults (25%) and comprises 15-20% in children. It is a genetically heterogeneous aggressive disease characterized by the accumulation of somatically acquired genetic changes, altering self-renewal, proliferation, and differentiation of hematopoietic progenitor cells, resulting in uncontrolled clonal proliferation of malignant progenitor myeloid cells in the bone marrow, peripheral blood, and occasionally in other body tissues. Treatment with modern chemotherapy regimen (cytarabine and daunorubicin) usually achieves high remission rates, still majority of patients are found to relapse, resulting in only 40-45% overall 5 year survival in young patients and less than 10% in the elderly AML patients. The leukemia stem cells (LSCs) are characterized by their unlimited self-renewal, repopulating potential and long residence in a quiescent state of G<sub>0</sub>/G<sub>1</sub> phase. LSCs are considered to have a pivotal role in the relapse and refractory of AML. Therefore, new therapeutic strategies to target LSCs with limited toxicity towards the normal hematopoietic population is critical for the ultimate curing of AML. Ongoing research works with natural products like parthenolide (a natural plant extract derived compound) and its derivatives, that have the ability to target multiple pathways that regulate the self-renewal, growth and survival of LSCs point to ways for a possible complete remission in AML. In this review article, we will update and discuss various natural products that can target LSCs in AML.
Plasmon Resonance of Finite One-Dimensional Au Nanoparticle Chains (2004)

We report experimental and theoretical studies on the plasmon resonances of finite one-dimensional chains of Au nanoparticles excited by evanescent light waves with polarization parallel to the chains. The experimental results show that the plasmon resonance peak wavelengths of these finite 1D chains are significantly red-shifted in comparison to that of single Au nanoparticle. Contrary to previous findings, the peak wavelengths are observed to be a nonmonotonic function of particle numbers in the chain. This phenomenon is reproduced in the theoretical results obtained by using the transfer-matrix method and is shown to occur only for larger particles where phase retardation effects are important in plasmon coupling.
Sentence-level Rewriting Detection (2014)

Writers usually need iterations of revisions and edits during their writings. To better understand the process of rewriting, we need to know what has changed between the revisions. Prior work mainly focuses on detecting corrections within sentences, which is at the level of words or phrases. This paper proposes to detect revision changes at the sentence level. Looking at revisions at a higher level allows us to have a different understanding of the revision process. This paper also proposes an approach to automatically detect sentence revision changes. The proposed approach shows high accuracy in an evaluation using first and final draft essays from an undergraduate writing class.
Calcium Sulfate Spinal Cord Scaffold: A Study on Degradation and Fibroblast Growth Factor 1 Loading and Release (2010)

Currently, there is no regenerative strategy for the spinal cord that is part of clinical standard of core. Current paths usually include combinations of scaffold materials and active molecules. In a recent study, a permanent dental resin scaffold for treatment of spinal cord injury was designed. The results from studies on rats were promising. However, for potential clinical use, a biodegradable scaffold material that facilitates drug delivery and the regeneration of the spinal cord needs to be developed. Also a biodegradable material is expected to allow a better evaluation of the efficacy of the surgical method. In this article, the suitability of hardened calcium sulfate cement (CSC) for use as degradable spinal cord scaffolds is investigated in bench studies and in vitro studies. Compressive strength, degradation and microstructure, and the loading capability of heparin-activated fibroblast growth factor 1 (FGF1) via soaking were evaluated. The CSC could easily be injected into the scaffold mold and the obtained scaffolds had sufficient strength to endure the loads applied during surgery. When hardened, the CSC formed a porous microstructure suitable for loading of active substances. It was shown that 10 min of FGF1 soaking was enough to obtain a sustained active FGF1 release for 20-35 days. The results showed that CSC is a promising material for spinal cord scaffold fabrication, since it is biodegradable, has sufficient strength, and allows loading and controlled release of active FGF1.
Printing the Impossible Triangle: The Copyright Implications of Three-Dimensional Printing (2011)

Three-dimensional printing (3D printing), which allows users to digitize and replicate objects, is emerging as the next potentially disruptive technology. It is now possible to “print” intricate objects from furniture to food to human organs. Because 3D printing relies on computer-based blueprints in order to create physical objects, digital copyright infringement can now impact the physical world. The first example occurred in February 2011, when the world's first Digital Millennium Copyright Act (DMCA) takedown notice for a 3D printed object was sent. This article describes how 3D printing works in relation to copyright law, first by discussing this DMCA takedown request, and then discussing the validity of the copyright complaint. This article then discusses future copyright concerns for the open source 3D printing community in light of how the 3D printing community handled its first copyright complaint.
The security of cloud computing system enabled by trusted computing technology (2010)

Cloud computing provides people the way to share distributed resources and services that belong to different organizations or sites. Since cloud computing share distributed resources via the network in the open environment, thus it makes security problems important for us to develop the cloud computing application. In this paper, we pay attention to the security requirements in cloud computing environment. We proposed a method to build a trusted computing environment for cloud computing system by integrating the trusted computing platform into cloud computing system. We propose a model system in which cloud computing system is combined with trusted computing platform with trusted platform module. In this model, some important security services, including authentication, confidentiality and integrity, are provided in cloud computing system.
Cardiac Autonomic Nervous System in Heart Failure: Imaging Technique and Clinical Implications (2011)

The autonomic nervous system interacts in the pathophysiology of heart failure. Dysfunction of the sympathetic nervous system has been identified as an important prognostic marker in patients with chronic heart failure. At present, cardiac sympathetic nerve imaging with 123-iodine metaiodobenzylguanidine [123-I MIBG] has been employed most frequently for the assessment of cardiac sympathetic innervation and activation pattern. The majority of studies have shown that cardiac sympathetic dysfunction as assessed with 123-I MIBG imaging is a powerful predictor for heart failure mortality and morbidity. Additionally, 123-I MIBG imaging can be used for prediction of potentially lethal ventricular tachyarrhythmias in heart failure patients. At present however, the lack of standardization of 123-I MIBG imaging procedures represents an evident issue. Standardized criteria on the use of 123-I MIBG imaging will further strengthen the clinical use of 123-I MIBG imaging in heart failure patients.