gebhart/patrepeval huggingface dataset:
A lossless compression method for internet packet headers (2005)

A critical requirement for performance evaluation and design of network elements is the availability of realistic traffic traces. There are, however, several reasons that makes it difficult to have access to them. Firstly, Internet providers are usually reluctant to make real traces public, secondly, hardware for collecting traces at high speed is usually expensive, and finally, with the increase of link rates, the required storage for packet traces of meaningful duration becomes too large. In this paper we address the problem of compression of these potentially huge packet traces. We propose a novel packet header compression, focused not on the problem of reducing transmission bandwidth or latency, but on the problem of saving storage space. As far as we know, ours is the first method specifically oriented to this goal. With our proposed method, storage size requirements for .tsh packet headers are reduced to 16% of its original size. The compression proposed here is more efficient than any other existing method and simple to implement. Others known methods have their compression ratio bounded to 50% and 32%.
Comparative analysis of 23S ribosomal RNA gene sequences of Bacillus anthracis and emetic Bacillus cereus determined by PCR-direct sequencing (1992)

The primary structures of the 23S ribosomal RNA genes of Bacillus anthracis and an emetic strain of Bacillus cereus were determined by direct sequencing of enzymatically amplified chromosomal DNA. The 23S rRNA gene sequences of B. anthracis and B. cereus were found to be almost identical and showed only two differences (a single nucleotide change, and a single base insertion in B. cereus). The feasibility of using PCR-direct sequencing for the rapid sequence determination of large-subunit rRNA genes is demonstrated.
Genetic algorithms approach to voltage optimization (2002)

The authors consider the use of genetic algorithms as a measure of voltage optimization of electric power system. Genetic algorithms are optimization and learning techniques based on natural selection and natural population genetics. A formation of a power system is encoded to a string of characters called an artificial chromosome the initial population of strings are generated at random, and then they are evolved by a genetic algorithm. The experiments with the prototype implementation are presented. These results verified the feasibility of genetic algorithms approach to power engineering.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Device performance and polymer morphology in polymer light emitting diodes: morphology dependent emission spectra (2000)

Polymer thin films for the light-emitting devices (LEDs) are usually obtained by spin-casting from slightly viscous solutions. The performance of polymer light-emitting diodes is strongly influenced by the thin film morphology. It is known that the polymer thin film morphology (or aggregation) is determined by the solvents used for obtaining polymer solutions. In this manuscript, we demonstrate that the polymer aggregation can also be controlled by the concentration of the polymer solution and the rotational speed used during spin-casting of the films. The correlation between the film morphology and emission spectra for polymer light-emitting diodes fabricated using poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene) (MEH-PPV) has been studied. Our findings indicate that there is a strong correlation between the “vibronic structure” observed in the emission spectra of the MEH-PPV devices and the aggregation of the polymer chains.
The Impact of Internet-Based Technologies on the Procurement Strategy (2002)

The big company may spend millions of dollars of expenditure on indirect goods and services. However, much of them may be carried out locally or divisionally, bypassing central guidelines. From a corporate perspective the fragmented procurement resulted in slow and expensive processes and excessive product costs due to poor leverage of buying power. The greater information processing capability achieved through the use of technology, especially Internet-based procurement systems, will enable significant cost improvements and leverage to be obtained through a more strategic approach to management of the typically routine and repetitive tasks with a low unit value, high variety of goods and services, but relatively high frequency. According to the researches, a 10 percent reduction in purchase costs can easily lead to a 50 percent rise in profit margin. This paper addresses the issue of how the Internet-based technologies will impact on the procurement strategy. I believe that the radical change in the Internet will give rise to new marketspaces, which may have the largest impact on procurement. The benefits to aware impacts come not only through direct cost savings but also through the improved efficiency of companies rethinking how they operate. 1.
Intravascular Placement of Metallic Coils as Lung Tumor Markers for CyberKnife Stereotactic Radiation Therapy (2015)

Endovascular placement of coil as a fiducial marker is safe and feasible during CyberKnife therapy, and might be an option for the patients in which percutaneous transthoracic fiducial placement might be risky.
Spectrofluorometric studies of the lipid probe, nile red. (1985)

We found that the dye nile red, 9-diethylamino-5H-benzo[alpha]phenoxazine-5-one, can be applied as a fluorescent vital stain for the detection of intracellular lipid droplets by fluorescence microscopy and flow cytofluorometry (J. Cell. Biol. 1985. 100: 965-973). To understand the selectivity of the staining, we examined the fluorescence properties of nile red in the presence of organic solvents and model lipid systems. Nile red was found to be both very soluble and strongly fluorescent in organic solvents. The excitation and emission spectra of nile red shifted to shorter wavelengths with decreasing solvent polarity. However, the fluorescence of nile red was quenched in aqueous medium. Nile red was observed to fluoresce intensely in the presence of aqueous suspensions of phosphatidylcholine vesicles (excitation maximum: 549 nm; emission maximum: 628 nm). When neutral lipids such as triacylglycerols or cholesteryl esters were incorporated with phosphatidylcholine to form microemulsions, nile red fluorescence emission maxima shifted to shorter wavelengths. Serum lipoproteins also induced nile red fluorescence and produced spectral blue shifts. Nile red fluorescence was not observed in the presence of either immunoglobulin G or gelatin. These results demonstrate that nile red fluorescence accompanied by a spectral blue shift reflects the presence of nile red in a hydrophobic lipid environment and account for the selective detection of neutral lipid by the dye. Nile red thus serves as an excellent fluorescent lipid probe.
Analytical modeling and numerical simulation of novel double-gate InGaAs vertical nanowire transistor device for threshold voltage tuning and improved performance (2016)

This paper proposes a novel cylindrical double gate In0.53Ga0.47As vertical Nanowire n type device, which offers a higher drive current, better channel potential controllability and reduced short channel effects at ultra-short channel length 14 nm through numerical simulation approach. An independent inner gate control is used for threshold voltage tuning. Improvement of drive current in the Double-Gate Vertical Nanowire Transistor (DG-VNWT) structure is achieved by growing the In0.53Ga0.47As Nanowire vertically on silicon substrate. Further to reduce the leakage current of the structure, we propose high-k LaAlO3 outer gate stack in integration with Al2O3 passivation layer and WN metal gate for the first time. Variable threshold voltage tuning is also achieved by inner gate control of the proposed device. An analytical model is built for validating threshold voltage dependence on inner gate voltage. Our results of the analytical model are observed to be at par with TCAD simulations. The proposed DG-VNWT device is compatible with silicon and high-k/metal gate CMOS technology with the unique capability of inner and outer gate control, the most promising scalable candidate for low power applications.
R/2R/sup +/ digital-analog converter (DAC) (2002)

The most commonly used converter in digital-analog conversion is the one with an R/2R ladder circuit. Accurate digital-analog converters (DAC) require extremely precise resistors. Although the trimming procedure is used to adjust the desired resistors' ratio, aging and environmental factors affect the accuracy and linearity of a converter, thus introducing random conversion errors and reducing the converter's applicability. With low precision resistors available, a new DAC design is proposed, based on a R/2R/sup +/ ladder circuit, where high converter precision is achieved due to better coverage of the analog range.
Noninvasive Diagnosis of NAFLD and NASH (2020)

The aim of this review is to outline emerging biomarkers that can serve as early diagnostic tools to identify patients with nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) and, among them, the subgroup of best candidates for clinical trials on emerging compounds. Regarding possible predictors of NAFLD, a number of studies evaluated a combination of serum biomarkers either available in routine practice (or investigational) or proprietary and expensive. So far, magnetic resonance imaging-derived proton density fat fraction (MRI-PDFF) appears to be the most accurate for fatty liver diagnosis. In clinical practice, the main question is how to diagnose NASH early. There are new promising biomarkers that can help in diagnosing early stages of NASH, yet they include variables not routinely tested. In the setting of NASH, most studies confirm that, in spite of several well-known limitations, transient elastography or point shear wave elastography can help in enriching the pool of patients that should be screened for investigational treatments. Newer multiomics biomarkers including those focusing on microbiota can be useful but require methods to be standardized and implemented. To date, one biomarker alone is not able to non- or minimally invasively identify patients with NASH and mild to moderate fibrosis.
TETRAMETHYLENEDISULPHOTETRAMINE: AN INHIBITOR OF γ‐AMINOBUTYRIC ACID INDUCED DEPOLARIZATION OF THE ISOLATED SUPERIOR CERVICAL GANGLION OF THE RAT (1975)

Tetramethylenedisulphotetramine (TETS), a potent convulsant, antagonized the depolarizing action gamma-aminobutyric acid (GABA) in the isolated superior cervical ganglion of the rat. No antagonism of responses to the cholinomimetic agent carbachol was observed. TETS appeared to act in a non-competitive manner and was reversible. Its activity profile was comparable to that of bicuculline in the same tissue except that the latter appears to act in a competitive manner.
Low level laser therapy in primary Raynaud's phenomenon--results of a placebo controlled, double blind intervention study. (2004)

Low level laser therapy reduces frequency and severity of Raynaud attacks. The effect is most pronounced in patients with signs of decreased threshold for vasospasm and less effective in patients with delayed hyperemia.
Natural products as starting points for future anti-malarial therapies: going back to our roots? (2011)

The relative paucity of new herbal medicinal product scaffolds active against malaria results discovered in recent years suggest it is time to re-evaluate the 'smash and grab' approach of randomly testing purified natural products and replace it with a patient-data led approach. This will require a change of perspective form many in the field. It will require an investment in standardisation in several areas, including: the ethnopharmacology and design and reporting of clinical observation studies, systems for characterizing anti-malarial activity of patient plasma samples ex vivo followed by chemical and pharmacological characterisation of extracts from promising sources. Such work falls outside of the core mandate of the product development partnerships, such as MMV, and so will require additional support. This call is timely, given the strong interest from researchers in disease endemic countries to support the research arm of a malaria eradication agenda. Para-national institutions such as the African Network for Drugs and Diagnostics Innovation (ANDi) will play a major role in facilitating the development of their natural products patrimony and possibly clinical best practice to bring forward new therapeutics. As in the past, with quinine, lapinone and artemisinin, once the activity of herbal medicinal products in humans is characterised, it can be used to identify new molecular scaffolds which will form the basis of the next generation of anti-malarial therapies.
Integrated-circuit digital logic families IIIߞECL and MOS devices (1970)

This final installment of a three-part article is devoted to emitter-coupled logic (ECL) devices as well as to metal oxide semiconductor (MOS) logic devices of the p-channel (P-MOS) and complementary (CMOS) types. The concluding portion presents a summary chart comparing the major parameters of the various IC digital families discussed in the three installments, plus a useful check list of available functions.
Dendroamide A, Nostocyclamide and Related Cyclopeptides from Cyano- bacteria. Total Synthesis, together with Organised and Metal-templated Assembly from Oxazole and Thiazole- based Amino Acids (2002)

are shown to undergo organised and metal-templated assemblies leading to novel cyclic peptides.Thus, a 1:1:1 mixture of the amino acids (15, 16 and 17) undergo cyclisation in the presence of FDPP producing the natural hexapeptide dendroamide A (4), together with its positional isomer (33) and other cyclic trimers in a combined yield of 75%.Likewise, a mixture of 15, 16 and 18 cyclised to nostocyclamide (6), isolated from a cyanobacterium, and equal amounts of the analogues (36, 37 and 38) in a combined yield of 65%.The proportions of the cyclopeptide products produced in these novel cyclooligomerisations varied when the cyclisations were carried out in the presence of various metal ions, e.g.Cu 2+ , Ca 2+ , Na + , K + , Ag + .A brief discussion of the influence of metals in controlling the outcome of some of these reactions is given.Nature has presented us with a prodigious variety of oxazole/oxazoline and thiazole/thiazoline-based secondary metabolites in recent years, many of which are based on macrocyclic structures, and include lissoclinamide 4 (1), 1 mollamide (2) 2 and ascidiacyclamide (3) 3 from ascidians (sea squirts), 4 and dendroamide A (4), 5 raocyclamide (5) 6 and nostocyclamide (6) 7 from cyanobacteria.The characteristic sequence of alternating cysteine/serine-derived heterocycles and amino acids in these compounds is highly reminiscent of macrocyclic ligands such as porphyrins and aza crown ethers, which seems to suggest that they are tailor-made for metal complexation and ion transport in vivo. 8Indeed, metal binding data have now been determined for a variety of marine cyclopeptides and they seem particularly prone to † This paper is dedicated to A.I. Meyers on the occasion of his 70 th birthday.Professor Meyers carried out distinguished research in the area of oxazole-based natural products over several decades, including the synthesis of the cyclopeptide bistratamide D, (-)-madumycin II, and griseoviridin.binding to Cu 2+ , Zn 2+ and Ca 2+ . 9Furthermore, Fairlie et al. 10 have described crystal structures for novel bridged Cu 2+ complexes of patellamide D and ascidiacyclamide (7 and 8).
EXPOSICION DE PINTORES HOLANDESES (1964)

EL DIRECTOR DE LA ESCUELA NACIONAL DE ARTES PLASTICAS, PROFESOR JOSE ARELLANO FISHER, INAUGURO LA EXPOSICION PINTORES HOLANDESES QUE CONSTA DE 184 REPRODUCCIONES DE CUADROS FAMOSOS. ACOMPANARON AL PROFESOR ARELLANO, EL DIRECTOR DE LA ESCUELA DE CIENCIAS QUIMICAS, INGENIERO FRANCISCO DIAZ LOMBARDO; EL AGREGADO CULTURAL DE LA EMBAJADA DE LOS PAISES BAJOS, ALEXANDRE STOLS, Y OTRAS AUTORIDADES UNIVERSITARIAS.
SCID-hu mice as a model to study tolerance after fetal stem cell transplantation. (1992)

SCID-hu mice were constructed with human fetal liver and human fetal thymus, obtained from the same or from different donors. Hematopoietic cells originating from the fetal liver migrate to the fetal thymus and give rise to medullary and cortico-medullary macrophages and dendritic cells. Thymic epithelial cells remain of thymic donor origin. The fetal liver donor derived stem cells differentiate in this environment into double positive and finally single positive CD4 or CD8 expressing T cells. The TCR V beta repertoire generated at the double positive stage is identical to that generated in the thymus of the donor. Thymic selection induces changes in V beta usage comparable to those previously reported for normal human thymus. Single-positive, functionally mature, and mainly TCR alpha beta+ T cells reach the peripheral blood compartment of the SCID-hu mice. These T cells are able of specific proliferative and cytotoxic alloresponses. No autoreactivity is observed. Single positive T cells which differentiated in the thymus of SCID-hu mice transplanted with liver and thymus of two different donors are tolerant to the HLA antigens of both donors. By limiting dilution analysis, it could be demonstrated that tolerance to the fetal liver donor is due to clonal deletion whereas tolerance to the fetal thymus donor is not. These data show that human T cell development is progressing normally in these mice and gives rise to a mature, functional and polyclonal T cell repertoire which is comparable to that observed in normal individuals.(ABSTRACT TRUNCATED AT 250 WORDS)
Self-propelled weight-relieving walker for gait rehabilitation (1992)

This paper describes a novel walking aid, the weight relieving walker (WRW), which partially relieves the body weight of an ambulating patient. The device incorporates a pneumatic weight relief mechanism, a restraint mechanism and a forward propulsion mechanism. Weight relief facilitates stance on an affected lower limb as well as the swing of that same limb. Restraint of the patient by the walker adds to trunk stability thereby facilitating walking movements of the lower extremities. A motorized, self-propelled walker neutralizes the effect of the walker's own weight on patient's locomotion. Additionally, it contributes to step symmetry. Data gathered from 26 patients with severe locomotion problems, point to a substantial contribution of the device to ambulation.
STACKS (III) (1972)

Journal Article STACKS (III) Get access E. M. WRIGHT E. M. WRIGHT University of Aberdeen Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Mathematics, Volume 23, Issue 2, June 1972, Pages 153–158, https://doi.org/10.1093/qmath/23.2.153 Published: 01 June 1972 Article history Received: 17 June 1971 Published: 01 June 1972
Ammonium toxicity in different cell lines (1997)

The toxic effect of ammonium upon a variety of cell lines of lymphoid (Jurkat), pituitary (GH(4)), and renal (LLC-PK(1)) origin was studied. Millimolar concentrations of the ion mildly affected the growth of GH(4) cells and prevented the growth of LLC-PK(1) cells. The ion did not lead to the death of LLC-PK(1) cells but it produced morphologic changes in these cells. The effects of ammonium upon Jurkat cells were different because cells died after accumulating at S phase. Cell death was due to apoptosis and might be related to ammonium-induced calcium mobilization from intracellular stores. These results indicate that the toxic effects caused by ammonium accumulation are different depending upon the cell type. (c) 1997 John Wiley & Sons, Inc. Biotechnol Bioeng 56: 530-537, 1997.
Dimension Theory in Dynamical Systems: Contemporary Views and Applications (1997)

The principles of symmetry and self-similarity structure nature's most beautiful creations. For example, they are expressed in fractals, famous for their beautiful but complicated geometric structure, which is the subject of study in dimension theory. And in dynamics the presence of invariant fractals often results in unstable turbulent-like motions and is associated with chaotic behaviour. In this book, Yakov Pesin introduces an area of research that has recently appeared in the interface between dimension theory and the theory of dynamical systems. Focusing on invariant fractals and their influence on stochastic properties of systems, Pesin provides a comprehensive and systematic treatment of modern dimension theory in dynamical systems, summarizes the current state of research, and describes the most important accomplishments of this field.
Autosomal Recessive Polycystic Kidney Disease: The Clinical Experience in North America (2003)

The ARPKD Clinical Database represents the largest single cohort of ARPKD patients collected to date. Our initial data analysis provides several new clinical insights. First, in our subset of long-term survivors, ARPKD has a slower rate of disease progression, as assessed by age of ARPKD diagnosis, as well as age of diagnosis of clinical morbidities. Second, neonatal ventilation was strongly predictive of mortality as well as an earlier age of diagnosis in those who developed hypertension or chronic renal insufficiency. However, for infants who survive the perinatal period, the long-term prognosis for patient survival is much better than generally perceived. Third, although systemic hypertension and CRI were significantly correlated with respect to age of diagnosis, similar relationships with portal hypertension were not evident, suggesting that disease progression may have organ-specific patterns. Fourth, only a subset of patients may be at risk for developing clinically significant manifestations of periportal fibrosis. Based on these observations, the next challenges will be to determine how various factors, such as specific mutations in the ARPKD gene, PKHD1(polycystic kidney and hepatic disease 1), variations in modifying gene loci, modulation by as yet unspecified environmental factors, and/or gene-environment interactions contribute to the marked variability in survival and disease expression observed among ARPKD patients.
Application of SCM level control system in separation plant (2010)

The automatic control process of single capacity level control system is expounded in this paper.As a level control unit,single level control system can implement control to first order object,and in the same time can implement level control computation.This level control system takes level/pressure as control objects and uses AT89C51 as main control chip,equipped with pressure transmitter,A/D0809 and relay;the working processes of AT89C51 SCM-based data acquisition and processing system and C Language-based data transferring program module are introduced.