gebhart/patrepeval huggingface dataset:
Data-hiding in audio using frequency-selective phase alteration (2004)

A novel perception-based data hiding technique for digital audio is proposed. It exploits the lower sensitivity of the human auditory system (HAS) to phase distortion in audio compared with magnitude distortion. Audio is decomposed into subband signals, some of which are selected for embedding data with a controlled alteration of phase using suitable allpass digital filters. The proposed scheme is robust to standard data manipulations yielding less than 2% error probability against compression, re-sampling, re-quantization, random chopping and noise addition. The proposed method is also robust to desynchronization attacks.
Cellulomonas bogoriensis sp. nov., an alkaliphilic cellulomonad (2005)

An alkaliphilic, slightly halotolerant, chemo-organotrophic, Gram-positive, rod-shaped bacterium, strain 69B4(T), was isolated from the sediment of the littoral zone of Lake Bogoria, Kenya. Phylogenetically, it is a member of the genus Cellulomonas, showing less than 97.5 % sequence similarity to the type strains of other Cellulomonas species. The highest level of similarity, albeit moderate, was found with respect to Cellulomonas cellasea DSM 20118(T). Chemotaxonomic properties confirm the 16S rRNA gene-based generic affiliation, i.e. a DNA G+C content of 71.5 mol%, anteiso-C(15:0) and C(16:0) as the major fatty acids, MK-9(H(4)) as the major isoprenoid quinone, a peptidoglycan containing L-ornithine as the diamino acid and D-aspartic acid in the interpeptide bridge and phosphatidylglycerol as the only identified main polar lipid. The strain is aerobic to facultatively anaerobic, being capable of growth under strictly anaerobic conditions. Optimal growth occurs between pH values 9.0 and 10.0. On the basis of its distinct phylogenetic position and metabolic properties, strain 69B4(T) represents a novel species of the genus Cellulomonas, for which the name Cellulomonas bogoriensis sp. nov. is proposed. The type strain is 69B4(T) (=DSM 16987(T)=CIP 108683(T)).
Recognition of D-aspartyl residues in polypeptides by the erythrocyte L-isoaspartyl/D-aspartyl protein methyltransferase. Implications for the repair hypothesis. (1992)

We provide here the first direct evidence that D-aspartyl residues in peptides are substrates for the L-isoaspartyl/D-aspartyl protein carboxyl methyltransferase (EC 2.1.1.77). We do this by showing that D-aspartic acid beta-methyl ester can be isolated from carboxypeptidase Y digests of enzymatically methylated D-aspartyl-containing synthetic peptides. The specificity of this reaction is supported by the lack of methylation of L-aspartyl-containing peptides under similar conditions. Methylation of D-aspartyl residues in synthetic peptides was not observed previously because with Km values ranging from 2.5 to 4.8 mM, these peptides are recognized by the methyltransferase with 700-10,000-fold lower affinity than are their L-isoaspartyl-containing counterparts. The physiological significance of D-aspartyl methylation was investigated in two ways. First, analysis of in situ methylated human erythrocyte proteins showed that at least 22% of the methyl groups associated with the proteins ankyrin and band 4.1 are on D-aspartyl residues, suggesting that D-aspartyl methylation is an important function of the methyltransferase in vivo. Second, mathematical modeling of the protein aging and methylation reactions occurring in intact erythrocytes indicated that the accumulation of D-aspartyl residues can be reduced as much as 2-5-fold by the methyltransferase activity. Although this reduction is much less than that predicted for L-isoaspartyl residues, it may be significant in maintaining functional proteins throughout the 120-day life span of these cells.
The Cripple and His Place in the Community (1918)

For many generations the cripple has occupied a rather obscure place in the community, and has not had sufficient chance to share equally in all opportunities offered to normal children and adults. It is true that many individuals representing various organizations have been interested in the cripple and have helped in securing proper medical treatment for both crippled children and adults in some communities and limited educational advantages in others. Yet they have been unable, because of very apparent and justifiable reasons, to interpret to the community the real individual behind the handicap. However, through industrial accident boards the needs of the adult cripple have become increasingly more apparent. As a result of recent infantile paralysis epidemics some of the immediate and pressing needs of children have also become apparent, stimulating in the community a deeper interest in both these groups. Although industrial accidents and infantile paralysis,-both serious causes of crippling conditions,-have increased the total cripple population, the community has not been aroused until the present time, to take any active steps in carrying out a constructive program, thus indicating their recognition of the significance of this group in community life. Now, because of the war, the care of the returned crippled soldier forces the community to immediate action. Already, plans for his medical care, for educational, vocational, and industrial opportunities are well organized. Everything is being done to assure him of a permanent place in the normal life of the community. As a prospective idle dependent he is realized to be an undesirable citizen, so every chance for expressing himself in the kind of work he is best fitted for, by education, training, and physical condition, is to be open to him. It has even been said that a plan for some readjustment of the Workmen's Compensation and Liability Act is to be made, thus releasing the employer' from the extra rates of insurance,-an expense incurred by employing handicapped labor. 36
Pore-Shape Effects in Determination of Pore Size of Ordered Mesoporous Silicas by Mercury Intrusion (2008)

MCM-41 and SBA-15 micelle-templated silicas are ideal reference materials to study the effect of surface roughness on pore size measurement by mercury intrusion, as the inner surface of the mesoporous channels is much rougher in the case of SBA-15 than MCM-41. In the case of MCM-41, the pressure of mercury intrusion is related to the pore size by the classical Washburn−Laplace law, while in the case of SBA-15, the pressure of intrusion is much higher than expected and classical models underevaluate the size of the channels. Defects on the pore surface of SBA-15 affect the mercury intrusion in a similar way as the deviation from cylindrical geometry does for the pores of spongelike silica glasses. The results vindicate the models of Wenzel and Kloubek on the effect of surface defects on the mercury contact angle, which is significantly larger for a rough surface than for a plane surface. The surface defects of SBA-15 does not affect the evaluation of the mesopore size by nitrogen adsorption, as they are filled at an early stage of the adsorption and do not interfere with capillary condensation.
Static Azimuth Determination Using a Single Handheld GPS Receiver (2001)

A novel application of a developed GPS-based algorithm 
(time relative positioning) for military gun laying and 
pointing is presented for use in a static azimuth 
determination application. The method takes advantage 
of the lack of selective availability errors within the GPS 
system to make the time-relative algorithm found within 
the gun laying application usable for SPS short-baseline 
azimuth determination. A single GPS receiver is utilized 
in a configuration emulating the use of a 
typical handheld magnetic compass. The user is permitted 
to perform an arm motion but is not allowed to traverse or 
otherwise move their body during the derivation of the 
azimuth. Time-relative GPS positioning is then performed over a very short ~1m baseline (the length of a typical 
users arm) to provide a body-static azimuth oriented in 
the direction of the users hand and referenced to true 
north. 
Several advantages of this method include the ability for 
GPS to additionally correct for magnetic declination 
errors when providing appropriate reference of the 
resolved azimuth to north or any user defined reference. 
The derivation of azimuth within the GPS receiver in 
electronic form additionally allows storage into memory 
(waypoint or distance use) or immediate transmission via 
tactical or other radio. A more operational benefit is that a 
single device (GPS receiver) may be utilized for both 
position and azimuth reference in contrast to todays need 
to use first a compass and then a GPS receiver. The ability 
to derive GPS based usable azimuths eliminates the cost 
of including magnetic or other forms of externally derived 
azimuth circuitry. The detriment is obviously the need for 
acquisition of GPS signals in order to operate although 
this limitation is being countered by the significant 
commercial and military increase in GPS-based 
equipment utilization and resultant desire of need. 
This paper presents a detailed description of the problem 
under solution, the background of the time-relative 
methodology and its adaptation to the body-static azimuth 
application, and results from recent field testing indicating 
its utility for estimating true body-static azimuths of +/- 5 
degrees of accuracy (~36 compass segments) at 95% 
probability levels. This level of accuracy exceeds current 
casual ground navigation desires for eight to sixteen 
compass rose partitions of resolution with minimal 
expense to the receiver's operation and is on par with the 
+/- 1 to 5 degrees of potential error existent in alternative 
methods. It is proposed that a form of this application 
may be of significant interest to commercial and military 
based GPS receiver manufacturers looking to support 
cost-effective means of static azimuth derivation.
Vehicle toll payment system based on Internet of Things concept (2016)

Internet of Things concept as a possibility to combine different devices from different areas results in exchange of different data types through different networks. Possibilities and major features of different data exchange and services binding using Internet of Things are described in this paper. An implementation of Internet of Things device and system for vehicle toll payment through the Internet is presented and described. Major advantages of using such a system for beforehand vehicle toll payment are considered and described in this paper. Technologies used to realize such a system as well as embedded application of such solution is described in this paper. Results of vehicle toll payment system using Internet of Things application are presented and described. Performance impact results of the device embedded application for vehicle toll payment system on Internet of Things device is presented and shown.
Individual Differences in the Benefits of Feedback for Learning (2011)

We suggest the following considerations for feedback design: Incorporate learner characteristics and task demands when designing learning support via feedback.
Composition and Antimicrobial Activity of the Essential Oils of Two <i>Origanum</i> Species (2001)

The essential oils obtained from the aerial parts of Origanum scabrum and Origaum microphyllum, both endemic species in Greece, were analyzed by means of GC and GC-MS. Forty-eight constituents were identified, representing 98.59 and 98.66% of the oils, respectively. Carvacrol, terpinen-4-ol, linalool, sabinene, alpha-terpinene, and gamma-terpinene were found as the major components. Furthermore, both samples exhibited a very interesting antimicrobial profile after they were tested against six Gram-negative and -positive bacteria and three pathogenic fungi.
The flow past a rapidly rotating circular cylinder in a uniform stream (1957)

A circular cylinder is rotating in a uniform stream of viscous liquid, the circumferential velocity of the cylinder being much greater than that of the uniform stream. It is shown that the effect of the uniform stream can be regarded as a small perturbation of the rotary flow due to the cylinder, and that a uniformly valid first approximation to the flow field can be obtained in this way. This approximate solution has the interesting property that the circulation about any circular contour concentric with the cylinder is the same. The lift on the cylinder is shown to be that given by the classical formula, and the drag force is zero to the order of the approximation considered.
A 5.4 kbps speech coder based on multi-band excitation and linear predictive coding (2002)

Recent work has shown that multi-band excitation (MBE) is capable of synthesizing high quality speech in the range of 4.8-8.0 kbps. In this paper, the multi-band excitation and linear predictive coding (MBE-LPC) model, which used the LPC analysis to obtain the prediction residual, and uses the MBE model to estimate the residual spectrum is presented. Our motivation is to improve the excitation model of LPC vocoders in the frequency domain. Based on the MBE-LPC model, a 5.4 kbps speech coding is presented. An adaptive postfilter is used to improve the perceptual quality of the decoded speech. Informal listening tests show that the perceptual quality of the decoded speech of the proposed coder is better than that of the 4.15 kbps improved (IMBE) coder.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Amino-terminal sequence, synthesis, and membrane insertion of glycoprotein B of herpes simplex virus type 1 (1987)

Glycoprotein B (gB) was purified from cells infected with two strains (KOS and F) of herpes simplex virus type 1. Determination of amino acid sequence at the NH2 termini revealed, by comparison with amino acid sequence deduced from previously published nucleotide sequence, that gB is made with a cleavable signal sequence of 29 or 30 amino acids, depending on the virus strain. Analysis of gB translated in vitro in the presence and absence of membranes showed that gB is inserted into membranes and glycosylated cotranslationally; a large portion of the gB polypeptide made in vitro is protected from proteolysis by membranes; the large protected fragment carries N-linked carbohydrate and is probably the NH2 terminus based on locations of signals for the addition of N-linked carbohydrate; and the size of the protected fragment is 93 kilodaltons (kDa) for gB made in vitro and associated with dog pancreas membranes, whereas both 93- and 98-kDa protected fragments can be detected for gB made in vivo. These last results are consistent with a previous proposal that gB may traverse the membrane three times.
Ultra-high-<i>Q</i>phononic resonators on-chip at cryogenic temperatures (2018)

Long-lived, high-frequency phonons are valuable for applications ranging from optomechanics to emerging quantum systems. For scientific as well as technological impact, we seek high-performance oscillators that offer a path toward chip-scale integration. Confocal bulk acoustic wave resonators have demonstrated an immense potential to support long-lived phonon modes in crystalline media at cryogenic temperatures. So far, these devices have been macroscopic with cm-scale dimensions. However, as we push these oscillators to high frequencies, we have an opportunity to radically reduce the footprint as a basis for classical and emerging quantum technologies. In this paper, we present novel design principles and simple microfabrication techniques to create high performance chip-scale confocal bulk acoustic wave resonators in a wide array of crystalline materials. We tailor the acoustic modes of such resonators to efficiently couple to light, permitting us to perform a non-invasive laser-based phonon spectroscopy. Using this technique, we demonstrate an acoustic Q-factor of 2.8 × 107 (6.5 × 106) for chip-scale resonators operating at 12.7 GHz (37.8 GHz) in crystalline z-cut quartz (x-cut silicon) at cryogenic temperatures.
Metalorganic chemical vapor deposition of [100] textured MgO thin films (1989)

We report on the results of a recent study on the deposition of [100] textured MgO films on fused quartz substrates by using the metalorganic chemical vapor deposition technique. Magnesium β-diketonate was used as the metal source and the growth rate of the film was about 0.4 μm/h at 740 °C in a horizontal warm wall reactor. X-ray diffraction experiments provided evidence that the MgO films on fused quartz were fully textured with [100] orientation perpendicular to the substrate surface. The films had a very smooth surface morphology and optical transparency with an index of refraction of 1.71.
Evaluation of DIGAS cooling for utility fuel cell power plants. Final report (1980)

This project assesses the technical and economic feasibility of pressurized gas-cooled fuel cell stacks for dispersed electric utility power plants. The gas-cooling concept, termed DIGAS, recirculates cathode vent gas through the fuel stack to cool the cells. The heat extracted by the cooling gas is then used to generate steam for the fuel processor and other uses. The efficient recovery of the heat at high temperature requires recirculation of most of the gas exhausted from the fuel cell through an external heat exchanger with ratios of the recirculating-gas-to-makeup-air of between 15:1 to 60:1. The evaluation developed is aimed at determining conceptual sizes and ratings and preliminary costs of the heat exchangers and recirculating fan in the recirculating gas loop, and at evaluating performance of 5 MW fuel cell power plants utilizing the DIGAS concept. Several conceptual designs of 5 MW DIGAS-cooled phosphoric-acid fuel-cell power plants operating on a naphta-type hydrocarbon are developed that yielded heat rates between 8700 and 9100 Btu per kWh. The conceptual design of a 10 kW proof-of-concept demonstration subsystem is also prepared. The operating characteristics of the fuel cell and fuel processor which greatly affect the recirculating loop operation and, in turn, the plant heat rate and piping configuration are: average temperature and pressure in the fuel cell; saturation pressure and temperature of the steam for the reformer; and the molar ratio of reformer steam-to-carbon in the fuel to the fuel processor. Conceptual plant designs show that naphtha-fueled phosphoric-acid fuel-cell power plants that are DIGAS-cooled should attain good heat rate performance with economically acceptable recirculation loop piping configurations.
More Than Meets the Eye: Associations of Vaginal Bacteria with Gram Stain Morphotypes Using Molecular Phylogenetic Analysis (2013)

Bacterial vaginosis (BV) is a highly prevalent condition associated with adverse health outcomes. Gram stain analysis of vaginal fluid is the standard for confirming the diagnosis of BV, wherein abundances of key bacterial morphotypes are assessed. These Lactobacillus, Gardnerella, Bacteroides, and Mobiluncus morphotypes were originally linked to particular bacterial species through cultivation studies, but no studies have systematically investigated associations between uncultivated bacteria detected by molecular methods and Gram stain findings. In this study, 16S-rRNA PCR/pyrosequencing was used to examine associations between vaginal bacteria and bacterial morphotypes in 220 women with and without BV. Species-specific quantitative PCR (qPCR) and fluorescence in Situ hybridization (FISH) methods were used to document concentrations of two bacteria with curved rod morphologies: Mobiluncus and the fastidious BV-associated bacterium-1 (BVAB1). Rank abundance of vaginal bacteria in samples with evidence of curved gram-negative rods showed that BVAB1 was dominant (26.1%), while Mobiluncus was rare (0.2% of sequence reads). BVAB1 sequence reads were associated with Mobiluncus morphotypes (p<0.001). Among women with curved rods, mean concentration of BVAB1 DNA was 2 log units greater than Mobiluncus (p<0.001) using species-specific quantitative PCR. FISH analyses revealed that mean number of BVAB1 cells was 2 log units greater than Mobiluncus cells in women with highest Nugent score (p<0.001). Prevotella and Porphyromonas spp. were significantly associated with the "Bacteroides morphotype," whereas Bacteroides species were rare. Gram-negative rods designated Mobiluncus morphotypes on Gram stain are more likely BVAB1. These findings provide a clearer picture of the bacteria associated with morphotypes on vaginal Gram stain.
Process Introspection: A Heterogeneous Checkpoint/Restart Mechanism Based on Automatic Code Modification (1997)

Process Introspection is a fundamentally new solution to the process checkpoint/restart problem suitable for use in high-performance heterogeneous distributed systems. A process checkpoint/restart mechanism for such an environment has the primary requirement that it must be platform-independent: process checkpoints produced on a computer system of one architecture or operating system platform must be restartable on a computer system of a different architecture or operating system platform. The central feature of the Process Introspection approach is automatic augmentation of program code to incorporate checkpoint and restart functionality. This program modification is performed at a platform-independent intermediate level of code representation, and preserves the original program semantics. This approach has attractive properties including portability, ease of use, customizability to application-specific requirements, and flexibility with respect to basic performance trade-offs. Our solution is novel in its true platform- and run-time system independence - no system support or non-portable code is required by our core mechanisms. Recent experimental results obtained using a prototype implementation of the Process Introspection system indicate the overheads introduced by the mechanisms are acceptable for computationally demanding applications.
Growth and productivity of wheat varieties in open and under poplar (Populus deltoides Bartr. Ex. Marsh) agrisilviculture system (2005)

A field experiment was conducted during the Rabi seasons of 1996–97 and 1997–98 at G.B. Pant University of Agriculture & Technology, Pantnagar to find out the response of twelve wheat (Triticum aestivum L.) varities under two different systems of sowing, i.e. in open field (without trees) and under poplar trees (as intercrop). It was found that poplar trees had adverse effect on almost all the growth parameters i.e. number of shoots per meter row length, plant height, dry matter accumulation and leaf area index of intercropped wheat resulting 6.89 to 24.40 per cent decrease in total biological yield of wheat as compared to control (without trees) fields. Among the wheat varities, UP 2338 and Raj. 3077 showed greater tolerance to sub-optimal condition (shade) and their yield did not differ significantly under both the systems i.e. in open field as well as under poplar tres.
Optic Nerve Head Circulation After Topical Calcium Channel Blocker (1996)

These results indicate that topical administration of verapamil lowers the intraocular pressure and increases the capillary blood speed in the optic nerve head in normal subjects. Changes measured in verapamil-treated eyes were also observed in placebo-treated eyes, indicating a crossover effect.
Resistive Transition of High-Temperature Superconductors (1988)

The model proposed recently by Yeshurun and Malozemoff to explain the "irreversibility line" in high-temperature superconductors is extended to account for the experimentally measured width and shape of the resistive transition in a magnetic field, without invoking material inhomogeneity. It is argues that high ${T}_{c}$ and ${H}_{c2}$ are necessary, but not sufficient, conditions for such materials to show zero resistance at room temperature in substantial magnetic fields.