gebhart/patrepeval huggingface dataset:
Electro Pen Nanolithography (2005)

We introduce Electro Pen Nanolithography (EPN), a nanoscale chemical patterning technique. In a single sweep of an ink-coated, biased conducting Atomic Force Microscope (AFM) probe-tip, an underlying thin organic film is oxidized, and the ink molecules are transferred directly to the oxidized regions. Results using trialkoxysilane inks with functional terminal groups are presented, where the same ink-covered tips are used to image the pattern with zero bias. This technique provides very fast--exceeding 10 microm/s--writing speeds with line-widths as small as 50 nm. Controlled multi-write operations permit the growth of an integer number of molecular layers. Multiple chemical patterns using a single probe-tip are demonstrated.
Marble burying and spontaneous motor activity in mice: interactions over days and the effect of diazepam (1987)

Spontaneous motor activity of mice was studied in the presence or absence of 24 coloured glass marbles with and without treatment with different doses of the anxiolytic compound, diazepam. The three parameters of motor activity, locomotion, rearing and total activity, were measured in automated test cages. All the groups exposed to the marbles exhibited considerable and comparable marble burying, but there was an important interaction between marble burying and locomotor activity over test days. The “marbles” group performed fewer locomotion counts than the “no marbles” group on Day 1 but more counts on Day 3. The “marbles” group performed more rearing and less total activity than the “no marbles” group generally and this relationship was not altered over test days. Diazepam caused a dose‐dependent decrease of both marble burying and the three parameters of motor activity but did not cause further increases in motor activity in the groups exposed to the marbles. These results are discussed with regard to the effects of “coping” behaviours on measures of motor activity. In conclusion, the present motor activity‐marble burying test appears to be a suitable animal model for testing potential anxiolytic compounds.
Thin Films and Solid-Phase Reactions (1975)

Thin films play a dominant role in modern technology. They appear as vital elements in integrated circuits as well as superconducting elements and solar energy conversion structures. Thin films are used both as active structures of precisely controlled thickness and area, and passive structures for connection to, or isolation from, the outside world.
Removal of Bromate (BrO<sup>−</sup><sub>3</sub>) from Water using Cationic Surfactant-Modified Powdered Activated Carbon (SM-PAC) (2012)

Bromate () is the harmful element that could be produced from disinfection of drinking water. In this study, surfactant-modified powdered activated carbon(SM-PAC) was synthesized and used for the removal of bromate () from water. Three cationic surfactants, cetylpyridinium chloride (CPC), hexadecyltrimethyl-ammonium chloride (CTAC), and hexadecyltrimethyl-ammonium bromide (CTAB) were used for modification. The effect of operation parameters, pH, and contact time were obtained. Moreover, adsorption mechanisms on SM-PACs were discussed. Compared with untreated activated carbon, CTAC modified SM-PAC exhibited 3 times higher adsorption capacity. These results indicated that SM-PAC removed effectively and rapidly from water without producing harmful byproducts.
Self-Identification of the Joint Centre of a Cable-Driven Shoulder Rehabilitator (2007)

This paper presents the joint centre self-identification of a novel cable-driven anthropocentric shoulder rehabilitator. For such a wearable rehabilitator, identification of joint centre is critical for kinematic modeling, path planning and motion control. However, the shoulder joint centre location is unknown when a user wears this rehabilitator and it differs among users. These complicate the initial patient preparatory. A joint centre self-identification model is formulated based on the differential change in the cable end-point distance. A computationally effective algorithm is employed to identify the shoulder joint centre. It does not require any external measurement devices because of the redundant actuation scheme in the cable-driven shoulder rehabilitator. In order to verify the effectiveness and robustness of the proposed algorithm, we conducted computer simulation studies. In the simulation example, although large errors (up to plusmn50mm) had been injected into the initial estimates, the joint centre was always accurately identified within four to five iterations.
Electrospun nanostructured chitosan–poly(vinyl alcohol) scaffolds: a biomimetic extracellular matrix as dermal substitute (2012)

Electrospinning is a versatile technique to make biomimetic and nanostructured scaffolds for skin tissue engineering. In this study we have electrospun and characterized chitosan (C)-poly(vinyl alcohol) (PVA) blend nanofibers as dermal substitutes and compared with 2D C-PVA films. The in vitro characterization of the C-PVA nanofibers and 2D films were evaluated using mouse 3T3 fibroblast cells and our results demonstrated that the cells adhered and proliferated on the surface of C-PVA nanofibers. In our animal studies, the implantation of C-PVA nanofibers along with topical administration of growth factor R-Spondin 1 on full thickness wounds created on rats showed 98.6% wound closure after two weeks post-surgery. The catalase and superoxide dismutase activity of the healing tissue was significantly higher in the groups treated with topical administration of growth factor and C-PVA nanofibers (p < 0.05). Thus these C-PVA nanofibers along with novel growth factor are promising new biomaterials that could be used as dermal substitutes for accelerated wound healing.
Indium-111- and yttrium-90-labeled human monoclonal immunoglobulin M targeting of human ovarian cancer in mice. (1998)

Higher tumor uptake was observed after i.p. administration of tumor-reactive IgM than after irrelevant IgM. The in vivo behavior of tumor-reactive IgM was similar when it was radiolabeled with either 111In or 90Y. Therefore, 111In-based imaging studies can be used to predict the biodistribution of subsequently administered 90Y-labeled IgM. Further development of radiolabeled AC6C3-2B12 as a diagnostic and therapeutic agent for patients with advanced ovarian carcinoma is warranted.
Intrusion sensor data fusion in an intelligent intrusion detection system architecture (2004)

Most modern intrusion detection systems employ multiple intrusion sensors to maximize their trustworthiness. The overall security view of the multi-sensor intrusion detection system can serve as an aid to appraise the trustworthiness in the system. This paper presents our research effort in that direction by describing a decision engine for an intelligent intrusion detection system (IIDS) that fuses information from different intrusion detection sensors using an artificial intelligence technique. The decision engine uses fuzzy cognitive maps (FCMs) and fuzzy rule-bases for causal knowledge acquisition and to support the causal knowledge reasoning process. In this paper, we report on the workings of the decision engine that has been successfully embedded into the IIDS architecture being built at the Center for Computer Security Research (CCSR), Mississippi State University.
TCP/IP protocol stack analysis using MENet (2003)

As computing systems grow in complexity, the cluster and gird communities require more sophisticated tools to diagnose, debug and analyze such systems. Current network monitoring tools capture network traffic as it appears on the network. These tools are incapable of capturing traffic as it progresses through a running protocol stack. The monitoring tools cannot lend insight to the modulating behavior of TCP (transmission control protocol) UDP (user datagram protocol) that have been shown to dominant the network traffic and impact network performance. The current generation of tools cannot record true application traffic demands and cannot capture protocol state information with respect to the TCP/IP stack at run time in order to help fine tune network performance. The developed tools focus more on presenting the statistics like IP addresses, higher level protocol, host etc. In this paper we introduce a MENet (monitor for Ethernet network traffic). The toolkit is an extension to the earlier developed utility for traffic monitoring. The toolkit is operational on the platform of Windows NT/2000. The toolkit is developed by programming in Microsoft Visual C++ environment. The MENet decrypts the packets passing through a system. We first present the design of the toolkit and then demonstrate the implementation with screen shots taken on real time traffic. Next we evaluate the working of the toolkit, its performance and its potential use in application such as protocol tuning a traffic characterization. The protocol analysis demonstrates the effectiveness of MENeT for monitoring. The work on presenting the stats to portray the network traffic from every angle is in place.
Higher octanes, less benzene (1988)

In the octenar process, aromatics concentrates are recovered from BTX cuts rich in aromatics (e.g., from pyrolysis gasoline, reformate) using extractive distillation. The new process will: recover a high-octane blending component for motor gasoline, reduce benzene content in the aromatics concentrate, recover pure benzene. The simultaneous recovery of two aromatics as pure products with different boiling points (toluene and xylene) has also been carried out successfully on an industrial scale.
Properties of various sintered rare earth-cobalt permanent magnets between -60° and +200°C (1980)

The temperature dependency of remanence, intrinsic and induction coercivity, energy product and loop squareness of sintered rare earth-cobalt permanent magnets was studied. High-energy magnets having room-temperature energy products of 19-30 MGOe were characterized with view toward their use in air-borne electrical machinery. The temperature variation of the commonly used design parameters is reported for six types of commercial magnets based on SmCo <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> , (Sm, Pr)Co <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> and modified Sm <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> Co <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">17</inf> , which had been fabricated by three common field-pressing methods. Demagnetization curves were measured at four temperatures, from -60°C to +200°C. This paper identifies the magnet types by nominal composition and pressing geometry; it briefly discusses the methods of measurement and it reports detailed magnetic property data of value to the magnet user.
Microwave magnetic thin-film devices (1988)

The author reviews the current status of magnetic film technology and then summarizes the state-of-the-art and remaining unsolved problems of each of the three major application areas: analog signal processing devices, tunable filters and oscillators, and control components. Two major thin-film approaches are covered: magnetostatic-wave (MSW) devices and thin-film implementations of bulk-ferrite devices. Promising research directions are identified.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
<title>Very low bit rate video coding using object-based mesh design and tracking</title> (1996)

This paper presents an object-based, object-scalable mesh design and tracking algorithm for very low bitrate video coding, which consists of three stages: object segmentation, object boundary coding, and 2D mesh design and tracking within each object. Here, we use pre- segmented test sequences; hence, object/motion segmentation is not treated. The boundary of each individual object is approximated by a polygon. Next, a node point selection algorithm followed by constrained Delauney triangulation is employed, where line segments representing the boundary of the object polygons from the constraints.
Crystal structures of a group II intron lariat primed for reverse splicing (2016)

The 2'-5' branch of nuclear premessenger introns is believed to have been inherited from self-splicing group II introns, which are retrotransposons of bacterial origin. Our crystal structures at 3.4 and 3.5 angstrom of an excised group II intron in branched ("lariat") form show that the 2'-5' branch organizes a network of active-site tertiary interactions that position the intron terminal 3'-hydroxyl group into a configuration poised to initiate reverse splicing, the first step in retrotransposition. Moreover, the branchpoint and flanking helices must undergo a base-pairing switch after branch formation. A group II-based model of the active site of the nuclear splicing machinery (the spliceosome) is proposed. The crucial role of the lariat conformation in active-site assembly and catalysis explains its prevalence in modern splicing.
Decreased Hepatic Triglyceride Accumulation and Altered Fatty Acid Uptake in Mice with Deletion of the Liver Fatty Acid-binding Protein Gene (2003)

Liver fatty acid-binding protein (L-Fabp) is an abundant cytosolic lipid-binding protein with broad substrate specificity, expressed in mammalian enterocytes and hepatocytes. We have generated mice with a targeted deletion of the endogenous L-Fabp gene and have characterized their response to alterations in hepatic fatty acid flux following prolonged fasting. Chow-fed L-Fabp-/- mice were indistinguishable from wild-type littermates with regard to growth, serum and tissue lipid profiles, and fatty acid distribution within hepatic complex lipid species. In response to 48-h fasting, however, wild-type mice demonstrated a approximately 10-fold increase in hepatic triglyceride content while L-Fabp-/- mice demonstrated only a 2-fold increase. Hepatic VLDL secretion was decreased in L-Fabp-/- mice suggesting that the decreased accumulation of hepatic triglyceride was not the result of increased secretion. Fatty acid oxidation, as inferred from serum beta-hydroxybutyrate levels, was increased in response to fasting, although the increase in L-Fabp-/- mice was significantly reduced in comparison to wild-type controls, despite comparable induction of PPAR alpha target genes. Studies in primary hepatocytes revealed indistinguishable initial rates of oleate uptake, but longer intervals revealed reduced rates of uptake in fasted L-Fabp-/- mice. Oleate incorporation into cellular triglyceride and diacylglycerol was reduced in L-Fabp-/- mice although incorporation into phospholipid and cholesterol ester was no different than wild-type controls. These data point to an inducible defect in fatty acid utilization in fasted L-Fabp-/- mice that involves targeting of substrate for use in triglyceride metabolism.
Non-Kasha Behavior in Quadrupolar Dye Aggregates: The Red-Shifted H-Aggregate (2019)

Aggregates of quadrupolar DAD-type chromophores are investigated theoretically using the essential states model (ESM) enhanced to include vibronic coupling. On the basis of vibronic signatures in the absorption and photoluminescence spectra, important connections are made to the Frenkel exciton model, which is the basis for defining conventional H- and J-aggregates. In contrast to the exciton theory, the ESM allows for an unusual type of the red-shifted H-aggregate, driven by the large quadrupole–quadrupole interaction. Except for the red shift of the main absorption peak, such aggregates display all of the characteristics of conventional H-aggregates, including suppressed radiative decay rates and all of the vibronic signatures in the absorption and photoluminescence spectra consistent with Frenkel exciton models. Red-shifted H-dimers occur for a range of slip angles, which separate conventional H- and J-aggregate behavior, with the slip range diminishing with increasing intermolecular separation. Davydov splitting and vibronic signatures for dimers with nonparallel transition dipole moments are also investigated. The theoretical insight provided herein may be exploited for optimizing optoelectronic device applications for growing families of quadrupolar molecules.
Geometrical vector flux and some new nonimaging concentrators (1979)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text R. Winston and W. T. Welford, "Geometrical vector flux and some new nonimaging concentrators," J. Opt. Soc. Am. 69, 532-536 (1979) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
A polymer-based microfluidic controller (2004)

Two design concepts are presented for realization of a microfluidic controller consisting of a microvalve and a flow sensor. One concept relies on a modular system design, which allows a maximum degree of flexibility in combining different microfluidic components on a microfluidic chip. In the second concept, the microfluidic components are fully integrated in order to minimize system size and dead volumes. The design concepts are implemented using a polymer-based fabrication technology. By using a proportional-integral control scheme, the microfluidic controller with integrated design shows the better performance. In this case, a minimum control tolerance of 1% and a time constant of 70 ms are achieved.
Grayscale area openings and closings, their efficient implementation and applications (1993)

The filter that removes from a binary image its connected components with area smaller than a parameter is called area opening. From a morphological perspective, this filter is an algebraic opening, and it can be extended to grayscale images. The properties of area openings and their dual area closings are recalled. In particular, it was proved in [13] that the area opening of parameter of an image is the supremum of the grayscale images that are smaller than and whose regional maxima are of area greater than or equal to . This theorem is at the basis of an efficient algorithm for computing grayscale area openings and closings. Its implementation involves scanning pixels in an order that depends both on their location and value. For this purpose, the use of pixel heaps is proposed. This data structure is shown to be both efficient and low in memory requirements. In addition, it can be used in the computation of various other complex morphological transforms. The use of these area openings and closings is illustrated on image filtering and segmentation tasks
Mixed-linker UiO-66: structure–property relationships revealed by a combination of high-resolution powder X-ray diffraction and density functional theory calculations (2016)

The use of mixed-linker metal-organic frameworks (MIXMOFs) is one of the most effective strategies to modulate the physical-chemical properties of MOFs without affecting the overall crystal structure. In many instances, MIXMOFs have been recognized as solid solutions, with random distribution of ligands, in agreement with the empirical rule known as Vegard's law. In this work, we have undertaken a study combining high-resolution powder X-ray diffraction (HR-PXRD) and density functional theory (DFT) calculations with the aim of understanding the reasons why UiO-66-based amino- and bromo-functionalized MIXMOFs (MIXUiO-66) undergo cell expansion obeying Vegard's law and how this behaviour is related to their physical-chemical properties. DFT calculations predict that the unit cell in amino-functionalized UiO-66 experiences only minor expansion as a result of steric effects, whereas major modification to the electronic features of the framework leads to weaker metal-linker interaction and consequently to the loss of stability at higher degrees of functionalization. For bromo-functionalized UiO-66, steric repulsion due to the size of bromine yields a large cell expansion, but the electronic features remain very similar to pristine UiO-66, preserving the stability of the framework upon functionalization. MIXUiO-66 obtained by either direct synthesis or by post-synthetic exchange shows Vegard-like behaviour, suggesting that both preparation methods yield solid solutions, but the thermal stability and the textural properties of the post-synthetic exchanged materials do not display a clear dependence on the chemical composition, as observed for the MOFs obtained by direct synthesis.
Auralization of spaces (2009)

Being able to determine and re-create what a room sounds like is useful not only in concert halls and opera houses but also in classrooms, houses, and virtual reality.
Detection and characterization of the tumor change between two FDG PET scans using parametric imaging (2008)

Patient follow-up based on PET scans is a promising approach for early assessment of tumor response and for detection of tumor recurrence. In this work, we introduce a parametric imaging method to detect and analyze the tumor changes between 2 consecutive PET scans. Fifteen pairs of consecutives PET/CT images obtained during the course of lung cancer patient monitoring were considered. For each pair, after CT- based registration of the PET images, the two PET datasets were subtracted. A biparametric graph of subtracted voxel values versus voxel values in the first scan was obtained. A model- based analysis of this graph was used to identify the tumor voxels in which significant changes occurred between the 2 scans, and yielded indices characterizing the changes. In our patients, the proposed approach correctly identified all tumor changes as confirmed using a conventional analysis. In addition, the parametric imaging approach can reveal heterogeneities in tumor response and does not require the preliminary identification of the tumors.
Russia After Stalin (1956)

Essay| January 01 1956 Russia After Stalin Alfred G. Meyer Alfred G. Meyer Director, Research Program on the History of the Communist Party of the Soviet Union, Columbia University ALFRED G. MEYER has taught at Harvard University and the University of Washington, and was Assistant Director of the Russian Research Center at Harvard. He is the author of Marxism: The Unity of Theory and Practice, and is working on a new hook, Leninism, to be published soon. Search for other works by this author on: This Site PubMed Google Scholar Current History (1956) 30 (173): 1–7. https://doi.org/10.1525/curh.1956.30.173.1 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Alfred G. Meyer; Russia After Stalin. Current History 1 January 1956; 30 (173): 1–7. doi: https://doi.org/10.1525/curh.1956.30.173.1 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 ContentCurrent History Search This content is only available via PDF. © 1956 by The Regents of the University of California1956 Article PDF first page preview Close Modal You do not currently have access to this content.