gebhart/patrepeval huggingface dataset:
Identification of Cloned HF RFID Proximity Cards Based on RF Fingerprinting (2016)

Passively powered high frequency (HF) Radio Frequency Identification (RFID) proximity cards have been widely used in many fields. Meanwhile, a lot of security and privacy threats such as cloning, unauthorized tracking have arisen. Many security protocols have been proposed. However, most of them focused on security implication of the logical layer, little attention was paid to characteristics of the physical layer. In this work, we consider identification of HF RFID proximity cards by investigating electromagnetic characteristics of their physical layers. A new RF fingerprint extraction method is proposed based on normalized power spectral density of envelop of the card response. The most useful features for identification are found within 5 odd harmonics of digital transmission and the subcarrier modulation frequency. After evaluating our technique on a set of 300 RFID cards from 6 manufacturers, we can achieve Equal Error Rate (EER)=0 for all types by selecting appropriate thresholds. As the feature extraction can be implemented under normal working state of cards, it is practical and efficient to realize real-time identification of HF RFID proximity cards.
Association of Variation in Contrast Volume With Acute Kidney Injury in Patients Undergoing Percutaneous Coronary Intervention (2017)

Acute kidney injury rates vary greatly among physicians, who also vary markedly in their use of contrast and do not use substantially less contrast in patients with higher risk for AKI. These findings suggest an important opportunity to reduce AKI by reducing the variation in contrast volumes across physicians and lowering its use in higher-risk patients.
Pouchitis After Restorative Proctocolectomy (2019)

Approximately 30% of patients with ulcerative colitis eventually require colectomy for fulminant or medically refractory disease or because of the development of a complication such as dysplasia. The majority of these patients have a total proctocolectomy with ileal pouch anal anastomosis. Pouchitis is a complex disorder with interplay of genetics, host immunity and dysbiosis. Mucosal barrier dysfunction, with increased intestinal permeability, is also believed to play a role in pouchitis. Pouchitis is suggested by variable clinical symptoms, including increased stool frequency, decreased stool consistency, abdominal cramping, fecal urgency, tenesmus, incontinence, and occasionally rectal bleeding, fever, or extraintestinal manifestations such as arthralgias. In patients with new symptoms suggesting pouchitis, the most useful diagnostic strategy is pouch endoscopy with biopsy, to establish a diagnosis of pouchitis and to exclude other diagnoses. In cases of severe, treatment-refractory pouchitis, anti-tumor necrosis factor alpha treatment, including infliximab and adalimumab, may be of benefit.
Synthetic Development of New 3-(4-Arylmethylamino)butyl-5-arylidene-rhodanines under Microwave Irradiation and Their Effects on Tumor Cell Lines and against Protein Kinases (2015)

A new route to 3-(4-arylmethylamino)butyl-5-arylidene-2-thioxo-1,3-thiazolidine-4-one 9 was developed in six steps from commercial 1,4-diaminobutane 1 as starting material. The key step of this multi-step synthesis involved a solution phase "one-pot two-steps" approach assisted by microwave dielectric from N-(arylmethyl)butane-1,4-diamine hydrochloride 6a-f (as source of the first point diversity) and commercial bis-(carboxymethyl)-trithiocarbonate reagent 7 for construction of the rhodanine platform. This platform was immediately functionalized by Knoevenagel condensation under microwave irradiation with a series of aromatic aldehydes 3 as second point of diversity. These new compounds were prepared in moderate to good yields and the fourteen synthetic products 9a-n have been obtained with a Z-geometry about their exocyclic double bond. These new 5-arylidene rhodanines derivatives 9a-n were tested for their kinase inhibitory potencies against four protein kinases: Human cyclin-dependent kinase 5-p25, HsCDK5-p25; porcine Glycogen Synthase Kinase-3, GSK-3α/β; porcine Casein Kinase 1, SsCK1 and human HsHaspin. They have also been evaluated for their in vitro inhibition of cell proliferation (HuH7 D12, Caco 2, MDA-MB 231, HCT 116, PC3, NCI-H727, HaCat and fibroblasts). Among of all these compounds, 9j presented selective micromolar inhibition activity on SsCK1 and 9i exhibited antitumor activities in the HuH7 D12, MDA-MBD231 cell lines.
Prevention of Dialysis Catheter Malfunction with Recombinant Tissue Plasminogen Activator (2011)

The use of rt-PA instead of heparin once weekly, as compared with the use of heparin three times a week, as a locking solution for central venous catheters significantly reduced the incidence of catheter malfunction and bacteremia. (Current Controlled Trials number, ISRCTN35253449.).
Tailoring the optical and dynamic properties of iminothioindoxyl photoswitches through acidochromism (2021)

Multi-responsive functional molecules are key for obtaining user-defined control of the properties and functions of chemical and biological systems. In this respect, pH-responsive photochromes, whose switching can be directed with light and acid-base equilibria, have emerged as highly attractive molecular units. The challenge in their design comes from the need to accommodate application-defined boundary conditions for both light- and protonation-responsivity. Here we combine time-resolved spectroscopic studies, on time scales ranging from femtoseconds to seconds, with density functional theory (DFT) calculations to elucidate and apply the acidochromism of a recently designed iminothioindoxyl (ITI) photoswitch. We show that protonation of the thermally stable <i>Z</i> isomer leads to a strong batochromically-shifted absorption band, allowing for fast isomerization to the metastable <i>E</i> isomer with light in the 500-600 nm region. Theoretical studies of the reaction mechanism reveal the crucial role of the acid-base equilibrium which controls the populations of the protonated and neutral forms of the <i>E</i> isomer. Since the former is thermally stable, while the latter re-isomerizes on a millisecond time scale, we are able to modulate the half-life of ITIs over three orders of magnitude by shifting this equilibrium. Finally, stable bidirectional switching of protonated ITI with green and red light is demonstrated with a half-life in the range of tens of seconds. Altogether, we designed a new type of multi-responsive molecular switch in which protonation red-shifts the activation wavelength by over 100 nm and enables efficient tuning of the half-life in the millisecond-second range.
Development of an open-loop ground source cooling system for space air conditioning system in hot climate like Indonesia (2018)

Ground source cooling system (GSCS) is promising technology to serve cooling demands of buildings. This study presents a development of an open-loop GSCS for space air conditioning at Hasanuddin University Gowa campus. Experimental study was carried-out by pumping water from well of 57 m depth and flowing the water over a heat exchanger to cool refrigerant of air conditioning (AC) unit. The performance of AC unit was investigated under actual operation with various water flowrates. The temperatures of inlet and outlet water in the heat exchanger were also measured. The system operated from 11:00 until 18:00 o’clock local time with 3 (three) flowrates such as 3.6; 6.5 and 14.3 L/min respectively. In the low flowrate, the temperature of outlet water is approximately 37 °C. However, the compressor power is also increase significantly. The coefficient of performances (COPs) of the system in average are 2.9 in the low flowrate and 3.4 in the high flowrate. Also. the result shows that the utilization of GSCS is appropriated for cooling buildings in the hot climate like Indonesia.
Synthesis of Thiiranes from Oxiranes in the Presence of β‐Cyclodextrin in Water (2004)

Abstract A mild and highly efficient, user‐friendly procedure has been developed for the conversion of oxiranes to thiiranes under supramolecular catalysis in the presence of β‐cyclodextrin in water at ambient temperature in excellent yields. The use of β‐cyclodextrin in this transformation overcomes the use of heavy metal halides as promoters and chlorinated hydrocarbons and other hazardous organic solvents.
Repression of tick microRNA-133 induces organic anion transporting polypeptide expression critical for Anaplasma phagocytophilum survival in the vector and transmission to the vertebrate host (2020)

The microRNAs (miRNAs) are important regulators of gene expression. In this study, we provide evidence for the first time to show that rickettsial pathogen Anaplasma phagocytophilum infection results in the down-regulation of tick microRNA-133 (miR-133), to induce Ixodes scapularis organic anion transporting polypeptide (isoatp4056) gene expression critical for this bacterial survival in the vector and for its transmission to the vertebrate host. Transfection studies with recombinant constructs containing transcriptional fusions confirmed binding of miR-133 to isoatp4056 mRNA. Treatment with miR-133 inhibitor resulted in increased bacterial burden and isoatp4056 expression in ticks and tick cells. In contrast, treatment with miR-133 mimic or pre-mir-133 resulted in dramatic reduction in isoatp4056 expression and bacterial burden in ticks and tick cells. Moreover, treatment of ticks with pre-mir-133 affected vector-mediated A. phagocytophilum infection of murine host. These results provide novel insights to understand impact of modulation of tick miRNAs on pathogen colonization in the vector and their transmission to infect the vertebrate host.
THE OCULAR COMPONENTS IN EMMETROPIC CHILDREN AS A FUNCTION OF ETHNICITY. (2002)

Friday, December 13, 2002: San Diego Convention Center: Room 11 B: Optics and Refraction Lectures: PDF Only
Evaluating the impact of planning long-term contracts on the management of a hybrid IT infrastructure (2011)

The cloud computing market has emerged as an alternative for the provisioning of resources on a pay-as-you-go basis. This flexibility potentially allows clients of cloud computing solutions to reduce the total cost of ownership of their Information Technology infrastructures. On the other hand, this market-based model is not the only way to reduce costs. Among other solutions proposed, peer-to-peer (P2P) grid computing has been suggested as a way to enable a simpler economy for the trading of idle resources. In this paper, we consider an IT infrastructure which benefits from both of these strategies. In such a hybrid infrastructure, computing power can be obtained from in-house dedicated resources, from resources acquired from cloud computing providers, and from resources received as donations from a P2P grid. We take a business-driven approach to the problem and try to maximise the profit that can be achieved by running applications in this hybrid infrastructure. The execution of applications yields utility, while costs may be incurred when resources are used to run the applications, or even when they sit idle. We assume that resources made available from cloud computing providers can be either reserved in advance, or bought on-demand. We study the impact that long-term contracts established with the cloud computing providers have on the profit achieved. Anticipating the optimal contracts is not possible due to the many uncertainties in the system, which stem from the prediction error on the workload demand, the lack of guarantees on the quality of service of the P2P grid, and fluctuations in the future prices of on-demand resources. However, we show that the judicious planning of long term contracts can lead to profits close to those given by an optimal contract set. In particular, we model the planning problem as an optimisation problem and show that the planning performed by solving this optimization problem is robust to the inherent uncertainties of the system, producing profits that for some scenarios can be more than double those achieved by following some common rule-of-thumb approaches to choosing reservation contracts.
Preparation and characterization of copper/silver bimetallic nanowires with core‐shell structure (2015)

Core‐shell copper/silver bimetallic nanowires were prepared by replacement reaction with citric acid and polyvinylpyrollidone at room temperature. A uniform silver coating was obtained by strictly controlling the molar ratio of Ag/Cu. The copper/silver composite was characterized by X‐ray diffraction, scanning electron microscopy, electron probe microanalysis and X‐ray photoelectron spectroscopy. Microscopic analysis shows that a well‐copper/silver core‐shell structure was formed. Thermo‐gravimetry and differential thermal analysis to the composite nanowires show that the silver coatings efficiently inhibit the oxidation of Cu. Copyright © 2015 John Wiley &amp; Sons, Ltd.
Hamiltonian Simulation Using Linear Combinations of Unitary Operations (2012)

We present a new approach to simulating Hamiltonian dynamics based on implementing linear combinations of unitary operations rather than products of unitary operations. The resulting algorithm has superior performance to existing simulation algorithms based on product formulas and, most notably, scales better with the simulation error than any known Hamiltonian simulation technique. Our main tool is a general method to nearly deterministically implement linear combinations of nearby unitary operations, which we show is optimal among a large class of methods.
A new experimental application of least-squares techniques for the estimation of the induction motor parameters (2003)

This paper deals with a new experimental approach to the parameter estimation of induction motors with least-squares techniques. In particular, it exploits the robustness of total least-squares (TLS) techniques in noisy environments by using a new neuron, the TLS EXIN, which is easily implemented online. After showing that ordinary least-squares (OLS) algorithms, classically employed in the literature, are quite unreliable in the presence of noisy measurements, which is not the case for TLS, the TLS EXIN neuron is applied numerically and experimentally for retrieving the parameters of an induction motor by means of a test bench. Additionally, for the case of very noisy data, a refinement of the TLS estimation has been obtained by the application of a constrained optimization algorithm which explicitly takes into account the relationships among the K-parameters. The strength of this approach and the enhancement obtained is fully demonstrated first numerically and then verified experimentally.
Dialkyl furan‐2,5‐dicarboxylates, epoxidized fatty acid esters and their mixtures as bio‐based plasticizers for poly(VInylchloride) (2015)

ABSTRACT Dialkyl furan‐2,5‐dicarboxylates and epoxidized fatty acid esters (EFAE) of varying molecular weights and volatilities, as well as their mixtures, were investigated as alternative plasticizers for poly(vinylchloride) (PVC). The EFAE utilized were epoxidized soybean oil (ESO) and epoxidized fatty acid methyl ester (e‐FAME). All plasticizers were compatible with PVC, with plasticization efficiencies usually increasing with decreasing molecular weights of the plasticizers (except in the case of ESO, which was remarkably effective at plasticizing PVC, in spite of its relatively high molecular weight). In comparison with phthalate and trimellitate plasticizers, the alternatives generally yielded improved balance of flexibility and retention of mechanical properties after heat aging, with particularly outstanding results obtained using 30−50 wt % e‐FAME in mixtures with diisotridecyl 2,5‐furandicarboxylate. Although heat aging characteristics of the plasticized polymer were often related to plasticizer volatilities, e‐FAME performed better than bis(2‐ethylhexyl) 2,5‐furandicarboxylate, and bis(2‐ethylhexyl) phthalate of comparatively higher molecular weights. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42382.
Mouse Hepatoblastomas: A Histologic, Ultrastructural, and Immunohistochemical Study (1988)

Hepatoblastomas from B6C3F1 and BALB/c mice were examined by light and electron microscopy and by immunohistochemical reactions for alpha-fetoprotein, keratin, and vimentin. Tumors occurred in one group of a chronic bioassay for the interaction of diet, genetic strain, and the carcinogen, 2-acetylaminofluorene. Tumors had several populations (including epithelial and mesenchymal cells) in various stages of differentiation. Neoplastic epithelial cells had features of embryonal hepatocytes, such as sparse cytoplasmic organelles, absence of glycogen, abundant free ribosomes, occasional bile canaliculi, and peroxisome-like dense bodies. Embryonal fibroblast-like cells had pleomorphic and folded nuclei with prominent perinuclear chromatin and dispersed cytoplasmic organelles. Fibroblast-like cells were surrounded by bundles of collagen fibrils. Intermediate or transitional types of cells were seen. No tumor cells were immunoreactive for mouse alpha-fetoprotein (AFP) antibody, unlike those in hepatocellular adenomas or carcinomas. Epithelial and mesenchymal tumor cells contained intermediate filaments throughout the cytoplasm; some of these cells stained for keratin but not for vimentin. These findings suggest that mouse hepatoblastomas are derived from bipotential liver blastema cells and are composed of a mixture of several cell populations.
Binder-free preparation of ZSM-5@silica beads and their use for organic pollutant removal (2020)

Organic structure directing agent (OSDA)- and binder-free preparation of ZSM-5@silica beads and their use for aniline removal.
Structure of the HNK-1 Carbohydrate Epitope on Bovine Peripheral Myelin Glycoprotein P0 (1996)

The HNK-1 carbohydrate epitope, expressed by many neural recognition molecules, is involved in cell interactions that control cell type-specific neurite outgrowth and regeneration. It is also the target for autoimmune IgM antibodies in demyelinating neuropathies of the peripheral nervous system in humans. Despite its acknowledged importance in cell interactions, the HNK-1 carbohydrate structure, when expressed on glycoproteins, is still unknown. Here, we describe the structure of one of the predominant HNK-1-bearing glycans of bovine P0. The epitope consists of the sulfated trisaccharide SO4-3GlcAbeta1-3Galbeta1-4GlcNAc, attached to the alpha1-6 arm of a diantennary core with a bisecting N-acetylglucosamine. It is the first example of a terminal 3-sulfated glucuronic acid on an asparagine-linked carbohydrate. Because the similarity between the glycoprotein-derived structure and the glycosphingolipids carrying HNK-1 is restricted to the terminal sulfated trisaccharide, we conclude that this element is sufficient for HNK-1 immunoreactivity. Knowledge of the HNK-1 structure on proteins is an important prerequisite for the elucidation of its functional role in development and disease.
Histamine H4 receptor as a new therapeutic target for choroidal neovascularization in age‐related macular degeneration (2014)

H4 receptors are expressed in macrophages that accumulate around CNVs. Suppressing H4 receptor expression prevented the pathological vessel leakage without showing retinal toxicity, indicating that the H4 receptor has potential as a novel therapeutic target in AMD.
Freeform fabrication of polymer-matrix composite structures (2002)

We have developed, prototyped, and demonstrated the feasibility of a novel robotic technique for rapid fabrication of composite structures. Its chief innovation is that, unlike all other available fabrication methods, it does not require a mold. Instead, the structure is built patch by patch, using a rapidly reconfigurable forming surface, and a robot to position the evolving part. Both of these components are programmable, so only the control software needs to be changed to produce a new shape. Hence it should be possible to automatically program the system to produce a shape directly from an electronic model of it. It is therefore likely that the method will enable faster and less expensive fabrication of composites.
Remanence and coercivity in exchange coupled amorphous R-TM/Fe bilayers and multilayers (abstract) (1994)

We have investigated the hysteresis behavior of rare-earth (R)-transition metal (TM) bilayers and multilayers consisting of a fine mixture of hard and soft phases. The films with bilayer thickness in the range of 5–100 Å were fabricated using a dc sputtering system. X-ray diffraction was used to check the crystal structure and multilayer structure. The magnetic properties were measured with a SQUID magnetometer in the temperature range of 10–300 K with fields up to 55 kOe. A strong exchange coupling between the hard magnetic phase (R-TM) and the soft phase (Fe) leads to a smooth hysteresis loop in samples with a certain thickness range. The remanent magnetization is enhanced significantly at the expense of a reduced coercivity. For example, in NdFe/Fe multilayer films, the reduced remanence increases from 0.63 to 0.92 at 10 K while the coercivity decreases from 9.3 to 1 kOe as the Fe layer thickness is varied from 0 to 10 nm. The effect of interface roughness on the exchange coupling has been investigated via different sputtering pressures and rates. The dependence of magnetic hysteresis on the layer thickness and temperature has been examined and the results will be reported.
Anin vitrostudy of the dynamic features of the major histocompatibility complex class I complex relevant to its role as a versatile peptide-receptive molecule (1997)

The major histocompatibility complex class I complex consists of a heavy chain and a light chain (beta2-microglobulin, beta2m), which assemble with a short endogenously derived peptide in the endoplasmic reticulum. The class I peptide can be directly exchanged, either at the cell surface or, as recently described, in vesicles of the endocytic compartments, thus allowing exogenous peptides to enter the class I presentation pathway. To probe the interactions between the components of the class I molecule, we analyzed the exchange of peptide and beta2m by using purified, recombinant H2-Kb/peptide complexes in a cell-free in vitro system. The exchange of competitor peptide was primarily dependent on the off-rate of the original peptide in the class I binding groove. Peptide exchange was not enhanced by the presence of exogenous beta2m, as exchange occurred to the same extent in its absence. Thus, the exchange of peptide and beta2m are independent events. The exchange rate of beta2m also was not affected by the dissociation rates of the original peptides. Furthermore, peptides could substantially exchange into class I molecules over a pH range of 5.5 to 7.5, conditions prevalent in certain endocytic compartments. We conclude that the dynamic properties of the components of class I molecules explain its function as a highly peptide-receptive molecule. The major histocompatibility complex class I can readily receive peptides independent of the presence of exogenous beta2m, even at a low pH. Such properties are relevant to class I peptide acquisition, which can occur at the cell surface, as well as in specialized endosomes.
Colorant Formulation and Color Control in the Textile Industry (1972)

The development of instrumental color measurement and its application to color problems in the textile industry are reviewed. The areas considered are: color formulation, color control, color tolerances, standards, and color faults and their evaluation. In each of these areas a fairly detailed account is given of the capabilities of modern instrumentation and theory to deal with the problems. Many practical problems in the coloring of textiles lend themselves to instrumental solution. To realize the potential of these methods, we do not need an abundance of new theories but rather more precise and reliable instrumentation. Perhaps, more importantly, we need colorists thoroughly trained in the theory and practice of spectrophotometry, color measurement, and color science.