gebhart/patrepeval huggingface dataset:
Gesture based sensor encryption (2012)

In this paper we propose a framework for encryption of data transmitted through mobile computing devices based on gestures using sensors on the device such as the accelerometer or touch sensors. The feature for encoding and decoding data could be implemented as a service, and used for different kind of applications including file transfers, multimedia, and SMS. Such an application would enhance the user experience and lead to increased security for mobile based data transfers. We describe the system architecture, the algorithms used for encryption and decryption using neural nets and XOR, and present the design of an application where the inverted Z gesture is used to encrypt and decrypt text messages with the help of a bitwise XOR function.
Automatic Generation of Communications for Redundant Multi-dimensional Data Parallel Redistributions (2013)

In this paper we concentrate on embedded parallel architectures with heterogeneous memory management systems combining shared and local memories, and more precisely we focus on efficient data communications between the various architecture parts. We formulate explicit data transfers in a polyhedral context and give several strategies for managing efficient communications for redundantly stored/read data. This allows automatic DMA-style code generation for a variety of data mappings onto parallel processing elements. Our approach is validated on a wide series of data redistribution examples linked with a domain-specific parallelisation framework developed in Thales, SpearDE. We give the solution for efficient data transfers mathematically as well as under the form of generated C code.
The development of a tool to predict package level thermal interface material performance (2002)

The characterization of thermal interface materials in electronic applications is necessary to ensure timely product launches. A tester has been developed at Intel to screen grease, phase change, and elastomer type materials, without having to go through the time and expense of completing package level measurements. The tester was designed to test materials at controlled bond line thickness and controlled pressures, while being able to directly measure the bond line thickness. The tester is capable of evaluating an interface material thermal impedance with a reproducibility of 0.03/spl deg/C/sup */cm/sup 2//W at a 95% confidence level. The tester can also be used to evaluate the bulk thermal conductivity and thermal contact impedance of a material. A package level study was completed to illustrate how tester characterization data can be used to effectively rank order interface materials.
Radiotherapy in the Management of Prostate Cancer After Radical Prostatectomy (2013)

The choice of treatment options for prostate cancer patients who have undergone radical prostatectomy depends on their risk profile, which is determined by the tumor node metastasis (TNM) status, histopathologic findings, and the pre- and post-radical prostatectomy PSA characteristics. The results of large clinical studies with a 10-year follow-up or more are the backbone of predictive models for risk estimates that incorporate these criteria and also for guideline recommendations. For low-to-intermediate-risk prostate cancer patients and older patients, observation with--in case of biochemical recurrence--early salvage radiotherapy can be advised after R0 resection, thus, avoiding overtreatment. After R1 resection, adjuvant radiotherapy should be considered. Patients with two or more positive lymph nodes and/or with distant metastasis may benefit from adjuvant hormone deprivation therapy. Beyond this rough outline, detailed analysis of subgroups is still required (and ongoing) to enable individually optimized treatment.
Determination of organic acids in aerosol particles from a coniferous forest by liquid chromatography–mass spectrometry (2005)

LC-MS methods with use of ion-trap and time-of-flight mass spectrometers were developed for the determination of organic acids in aerosol samples collected by a high-volume sampler in a Finnish coniferous forest. Comparison was made of the composition of samples collected during atmospheric formation of new aerosol particles and on days when this formation did not occur. A dynamic sonication-assisted solvent extraction system was developed for fast and quantitative extraction of the filter samples. Several organic acids, including pinonic acid, pinic acid, and homologous series of n-alkanoic acids, n-alkenoic acids, and aliphatic dicarboxylic acids, were identified. In samples collected between 08:00 and 16:00 hours the concentration of pinonic acid ranged from 0.5 ng m(-3) to 3.7 ng m(-3) and that of pinic acid from 0.2 ng m(-3) to 1.5 ng m(-3). For most of the compounds identified, the trends in concentration could be explained by the differences in temperature during collection. However, concentrations of short-chain n-alkanoic acids were clearly higher on the days when new aerosol particle formation occurred.
Loss of stearoyl-CoA desaturase 1 inhibits fatty acid oxidation and increases glucose utilization in the heart (2007)

Stearoyl-CoA desaturase (SCD) is a lipogenic enzyme that catalyzes the synthesis of monounsaturated fatty acids (FA). SCD1 deficiency activates metabolic pathways that promote FA beta-oxidation and decrease lipogenesis in liver. In the present study, we show that FA transport and oxidation are decreased, whereas glucose uptake and oxidation are increased in the heart of SCD1(-/-) mice. Protein levels of FA transport proteins such as FA translocase/CD36 and FA transport protein as well as activity of carnitine palmitoyltransferase 1, the rate-limiting enzyme for mitochondrial fat oxidation, were significantly lower in the heart of SCD1(-/-) mice compared with SCD1(+/+) mice. Consequently, the rate of palmitoyl-CoA oxidation was decreased significantly in the heart of SCD1(-/-) mice. mRNA levels of peroxisome proliferator-activated receptor-alpha, a key transcription factor controlling genes of FA oxidation, were significantly reduced in SCD1(-/-) mice. Phosphorylation of insulin receptor substrate-1 (IRS-1) and the association of alphap85 subunit of phosphatidylinositol 3-kinase with IRS-1 were significantly higher under both basal and insulin-stimulated conditions in SCD1(-/-) hearts. This increased insulin sensitivity translated to a 1.8-fold greater 2-deoxyglucose uptake and 2-fold higher rate of glucose oxidation in the myocardium compared with SCD1(+/+) counterparts. The results suggest that SCD1 deficiency causes a shift in cardiac substrate utilization from FA to glucose by upregulating insulin signaling, decreasing FA availability, and reducing expression of FA oxidation genes in the heart. This increase in cardiac insulin sensitivity and glucose utilization due to SCD1 deficiency could prove therapeutic in pathological conditions such as obesity that are characterized by skewed cardiac substrate utilization.
Reproducibility of in vivo corneal confocal microscopy as a novel screening test for early diabetic sensorimotor polyneuropathy (2011)

Development of corneal confocal microscopy may need to focus on the measurement of corneal nerve fibre length, as it appears to have superior reliability in comparison with other parameters, and as evidence exists for its potential as a clinical biomarker of early diabetic sensorimotor polyneuropathy.
Transparent, Flexible, and Highly Conductive Thin Films Based on Polymer−Nanotube Composites (2009)

We have prepared flexible, transparent, and very conducting thin composite films from poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), filled with both arc discharge and HIPCO single-walled nanotubes, at high loading level. The films are of high optical uniformity. The arc discharge nanotube-filled composites were significantly more conductive, demonstrating DC conductivities of >10(5) S/m for mass fractions >50 wt %. The ratio of DC to optical conductivity was higher for composites with mass fractions of 55-60 wt % than for nanotube-only films. For an 80 nm thick composite, filled with 60 wt % arc discharge nanotubes, this conductivity ratio was maximized at sigma(DC)/sigma(Op) = 15. This translates into transmittance (550 nm) and sheet resistance of 75 and 80 Omega/square, respectively. These composites were electromechanically very stable, showing <1% resistance change over 130 bend cycles.
The performance evaluation of the multi-carrier CDMA system with frequency domain equalization (1999)

The combination of orthogonal frequency division multiplexing (OFDM) with direct sequence spread spectrum (DS/SS), known as the multi-carrier code division multiple access (MC-CDMA) technique, has been proposed for wireless network applications recently. In this paper, we present a simple channel equalization method (training symbol-based) for the MC-CDMA systems in multipath fading environments, and its performance is analyzed in the downlink case. It is shown that with the aid of guard intervals, the proposed equalizer has an acceptable performance, if the equalizer's parameters are chosen properly. This is also proved by the computer simulation results. It is found that the utilization of guard intervals is a unique advantage for multi-carrier systems, although it reduces the system efficiency in some sense.
Design of fully printable planar chipless RFID transponder with 35-bit data capacity (2009)

A fully printable, passive and planar chipless RFID transponder is presented. The chipless tag encodes data into the spectral signature using a multiresonator. Both amplitude and phase components of the spectral signature are used for data encoding. The tag comprises of a microstrip multiresonating circuit with 35 spiral resonators and two cross-polarized transmitting and receiving circular UWB monopol antennas. The chipless tag has potentials for low cost item tagging such as banknotes and secured documents.
Extended Differential GPS (1989)

The Radio Technical Commission for Maritime Services (RTCM) Special Committee (SC)-104 on Differential GPS has established a standard data format for providing differential GPS services. The satellite pseudorange corrections that are broadcast in the RTCM SC-104 differential GPS navigation message lump together the errors from a number of different sources. This results in a degradation of the differential navigation accuracy if the user is operating at a distance from the differential reference station. Generally, the user must be within 100 nmi of the reference station to benefit fully from the differential GPS corrections. This paper presents an Extended Differential GPS concept that extends the range of operation of the differential GPS message. By using a network of differential GPS stations, one can compute a differential GPS message that provides corrections for the different components of the pseudorange error. This allows the differential GPS navigation accuracy to be extended to a range of 1000 nmi from the master differential station.
An Approach for Evaluating Cloud Application Topologies Based on TOSCA (2016)

Provisioning cloud applications usually is a complex task as it involves the deployment and configuration of several components (e.g., load balancer, application server, database) and cloud services (computing, storage, CDN, etc.) also known as application blueprints or topologies. The Topology and Orchestration Specification for Cloud Applications (TOSCA) is a recent standard that has focused on standardizing the way cloud applications are structured and managed to favor interoperability. In this paper we describe an approach that facilitates the evaluation of different application topologies by enabling cloud users to easily provision and evaluate different TOSCA topology options based on performance and cost metrics. We show the technical feasibility of the approach based on a case study with the WordPress blogging application where various topologies were automatically provisioned and evaluated in order to gain insights into the best (w.r.t. performance) options.
Spectral perturbations in a semiconductor laser: II. Nonlinear interaction of modes (2005)

The spectral perturbation is considered in a semiconductor active medium in the vicinity of the frequency of a strong electromagnetic wave. The nonlinear interaction of waves via the dynamic interference grating, or nonlinear scattering by population waves leads to the shift of resonance frequencies, which is manifested, in particular, in a change of the mode-beating spectrum of the laser. The spectral profile of this perturbation depends on the amplitude—phase coupling factor α. For large α, the profile becomes symmetrical in detuning from the strong-mode frequency. A change in the group refractive index corresponding to the 'slowing' of light is also calculated.
Risk Factors of Arterial Damage Assessed by ABI and baPWV among Hemodialysis Patients in Macau (2014)

Cardiovascular disease (CVD) is the leading cause of mortality and morbidity among patients with ESRD on chronic dialysis. Arterial damage is one of the characteristics of CVD. But the association between arterial damage and conventional risk factors for CVD has not yet been fully highlighted in chronic hemodialysis patients. Here we validate the clinical value of assessment of arterial damage by ABI and PWV in chronic hemodialysis patients in Macau.
Protein Engineering of Toluene- <i>o</i> -Xylene Monooxygenase from <i>Pseudomonas stutzeri</i> OX1 for Synthesizing 4-Methylresorcinol, Methylhydroquinone, and Pyrogallol (2004)

Toluene-o-xylene monooxygenase (ToMO) from Pseudomonas stutzeri OX1 oxidizes toluene to 3- and 4-methylcatechol and oxidizes benzene to form phenol; in this study ToMO was found to also form catechol and 1,2,3-trihydroxybenzene (1,2,3-THB) from phenol. To synthesize novel dihydroxy and trihydroxy derivatives of benzene and toluene, DNA shuffling of the alpha-hydroxylase fragment of ToMO (TouA) and saturation mutagenesis of the TouA active site residues I100, Q141, T201, and F205 were used to generate random mutants. The mutants were initially identified by screening with a rapid agar plate assay and then were examined further by high-performance liquid chromatography and gas chromatography. Several regiospecific mutants with high rates of activity were identified; for example, Escherichia coli TG1/pBS(Kan)ToMO expressing the F205G TouA saturation mutagenesis variant formed 4-methylresorcinol (0.78 nmol/min/mg of protein), 3-methylcatechol (0.25 nmol/min/mg of protein), and methylhydroquinone (0.088 nmol/min/mg of protein) from o-cresol, whereas wild-type ToMO formed only 3-methylcatechol (1.1 nmol/min/mg of protein). From o-cresol, the I100Q saturation mutagenesis mutant and the M180T/E284G DNA shuffling mutant formed methylhydroquinone (0.50 and 0.19 nmol/min/mg of protein, respectively) and 3-methylcatechol (0.49 and 1.5 nmol/min/mg of protein, respectively). The F205G mutant formed catechol (0.52 nmol/min/mg of protein), resorcinol (0.090 nmol/min/mg of protein), and hydroquinone (0.070 nmol/min/mg of protein) from phenol, whereas wild-type ToMO formed only catechol (1.5 nmol/min/mg of protein). Both the I100Q mutant and the M180T/E284G mutant formed hydroquinone (1.2 and 0.040 nmol/min/mg of protein, respectively) and catechol (0.28 and 2.0 nmol/min/mg of protein, respectively) from phenol. Dihydroxybenzenes were further oxidized to trihydroxybenzenes with different regiospecificities; for example, the I100Q mutant formed 1,2,4-THB from catechol, whereas wild-type ToMO formed 1,2,3-THB (pyrogallol). Regiospecific oxidation of the natural substrate toluene was also checked; for example, the I100Q mutant formed 22% o-cresol, 44% m-cresol, and 34% p-cresol, whereas wild-type ToMO formed 32% o-cresol, 21% m-cresol, and 47% p-cresol.
A Study of Mineral/Alkali Reactions (1987)

Summary A study of the reaction of alkaline chemicals with minerals constituting reservoir rock is presented. Static tests were conducted with high concentrations of NaOH and orthosilicate solutions and minerals (montmorillonite, kaolinite, illite, and quartz sand). The reaction time varied from 10 minutes to 2 months. Solutions were analyzed for hydroxide, Si, and Al, and solids were analyzed by X-ray diffraction (XRD) and other spectroscopic techniques. The loss of useful alkalinity was the highest with kaolinite and the least with quartz sand for high alkali concentration (5 wt%) or temperature (180°F [82 °C]). A detailed study of kaolinite/alkali reaction kinetics and quartz/alkali equilibrium is presented.
Interfield Hybrid Coding of Component Color Television Signals (1981)

Hybrid coding of color television images at broadcast standards is investigated. This involves two-dimensional discrete cosine transform (2-D DCT) of each field, followed by the differential pulse code modulation (DPCM) between successive fields. Two 22frame sequences of "Water Skier" and "Wheel of Fortune" in component form, i.e., luminance <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Y</tex> and chrominance <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">I</tex> and <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</tex> , were utilized as the database. A statistical study of the prediction error in the 2-D DCT domain is carried out. Three different algorithms for the 2-D DCT system are simulated and analyzed. In the first algorithm, optimum (nonuniform) quantizers are used in DPCM loops followed by fixed-wordlength coders. Uniform quantizers along with variablewordlength coders are implemented in the second system. The performances of different deterministic coders are investigated and compared with Huffman coders. The third scheme is an adaptive system. In this system each 8 × 8 block is divided into four subblocks. The activity of each subblock is monitored and when it exceeds some threshold, the subblock is considered to be spatially active. More bits are assigned to active subblocks and the ranges of corresponding quantizers are expanded. The prediction error of the dc coefficient is monitored to determine the temporal activity of a block. For a temporally active block, the number of bits assigned to the two lower frequency subblocks is increased. Performance of these three systems for unmatched statistics and in the case of a scene change are studied. Mean square error (MSE) between the original and reconstructed images, bit rate, entropy, essential maximum, and other parameters are utilized as the performance criteria. Also, a subjective evaluation of the processed images is carried out. It is shown that the interfield adaptive hybrid coding of color TV signals in component form results in significant savings in bit rates for transmission over a digital link.
A computer communication technique using content-induced transaction overlap (1984)

A new technique for multiaccess computer communication is presented. Data is sent as the decentralized preorder traversal of its binary tree representation using Content-Induced Transaction Overlap (CITO). This communication protocol is analogous to an algorithm of ordered retrieval in associative memory. The CITO technique eliminates the inherent redundancy of sequenced transmission which may result in data compression and exhibits simultaneous good performance in throughput, delay, and stability. Several enhancements unique to this technique make it particularly suitable for computer communication systems which are in close proximity. CITO utilizes synchronization at the bit level. Hence, propagation delay and bit transmission rate are to be considered as complementary constraints for applications.
Periodontal disease in diabetic patients - clinical and histopathological aspects. (2016)

Periodontal disease is one of the most frequent diseases affecting people all over the world. The relation between periodontal disease and diabetes mellitus raised the interest both of dentists and doctors treating metabolic diseases, as the two conditions influence one another. In our study, we analyzed a number of 75 patients with diabetes mellitus and periodontal disease that presented to the medical consultory for conditions of the dental maxillary system. The clinical study showed that periodontal disease and diabetes may affect young adults as well, still this pathological association more frequently appears after the age of 50. The disease was identified especially in the women living in urban area. The clinical examination of the dental maxillary system identified the presence of gingival ulcerations, dental calculus, gingival bleeding, radicular leftovers with anfractuous margins, fixed prostheses with an inappropriate cervical adjustment. Of the systemic diseases associated to periodontal disease and diabetes mellitus, there was observed that 66.66% of the patients also suffered from cardiovascular diseases (high blood pressure, ischemic cardiopathy, heart failure), and 37.33% suffered from obesity. The histopathological and immunohistochemical tests highlighted the presence of an inflammatory chronic, intense reaction, mainly formed of lymphocytes, plasmocytes, macrophages and granulocytes, heterogeneously disseminated and alteration of the structure of marginal and superficial periodontium. The inflammatory reaction in the patients with periodontal disease and diabetes was more intense than in the patients with periodontal disease without diabetes.
Bile salts of vertebrates: structural variation and possible evolutionary significance (2009)

Biliary bile salt composition of 677 vertebrate species (103 fish, 130 reptiles, 271 birds, 173 mammals) was determined. Bile salts were of three types: C(27) bile alcohols, C(27) bile acids, or C(24) bile acids, with default hydroxylation at C-3 and C-7. C(27) bile alcohols dominated in early evolving fish and amphibians; C(27) bile acids, in reptiles and early evolving birds. C(24) bile acids were present in all vertebrate classes, often with C(27) alcohols or with C(27) acids, indicating two evolutionary pathways from C(27) bile alcohols to C(24) bile acids: a) a 'direct' pathway and b) an 'indirect' pathway with C(27) bile acids as intermediates. Hydroxylation at C-12 occurred in all orders and at C-16 in snakes and birds. Minor hydroxylation sites were C-1, C-2, C-5, C-6, and C-15. Side chain hydroxylation in C(27) bile salts occurred at C-22, C-24, C-25, and C-26, and in C(24) bile acids, at C-23 (snakes, birds, and pinnipeds). Unexpected was the presence of C(27) bile alcohols in four early evolving mammals. Bile salt composition showed significant variation between orders but not between families, genera, or species. Bile salt composition is a biochemical trait providing clues to evolutionary relationships, complementing anatomical and genetic analyses.
Plasmonics: visit the past to know the future (2012)

Abstract Surface plasmons are collective oscillations of free electrons localized at surfaces of structures made of metals. Since the surface plasmons induce fluctuations of electric charge at surfaces, they are accompanied by electromagnetic oscillations. Electromagnetic fields associated with surface plasmons are localized at surfaces of metallic structures and significantly enhanced compared with the excitation field. These two characteristics are ingredients for making good use of surface plasmons in plasmonics . Plasmonics is a rapidly growing and well-established research field, which covers various aspects of surface plasmons towards realization of a variety of surface-plasmon-based devices. In this paper, after summarizing the fundamental aspects of surface plasmons propagating on planar metallic surfaces and localized at metallic nanoparticles, recent progress in plasmonic waveguides, plasmonic light-emitting devices and plasmonic solar cells is reviewed.