gebhart/patrepeval huggingface dataset:
4–12 GHz and 25–34 GHz cryogenic MHEMT MMIC Low Noise Amplifiers for radio astronomy (2012)

MMIC Broadband Low Noise Amplifiers (LNA) for radio astronomy applications with 100 nm GaAs metamorphic High Electron Mobility Transistor (mHEMT) process have been developed. Cryogenic performance of a 4–12 GHz and a 25–34 GHz LNAs is presented. The 4–12 GHz LNA cooled at 15 K exhibits an associated gain of 31.5 dB ± 1.8 dB and average noise temperature of 5.3 K with a low power dissipation of 8 mW. Cooled to 15 K the 25–34 GHz amplifier has demonstrated a flat gain of 24.2 dB ± 0.4 dB with 15.2 K average noise temperature, and a very low power dissipation of 2.8 mW on chip. The mHEMT based LNA MMICs have demonstrated excellent noise characteristics at cryogenic temperatures for their use in radio astronomy applications.
Ensemble State Estimation for Nonlinear Systems Using Polynomial Expansions in the Innovation (2011)

Abstract A new framework is presented for understanding how a nonnormal probability density function (pdf) may affect a state estimate and how one might usefully exploit the nonnormal properties of the pdf when constructing a state estimate. A Bayesian framework is constructed that naturally leads to an expansion of the expected forecast error in a polynomial series consisting of powers of the innovation vector. This polynomial expansion in the innovation reveals a new view of the geometric nature of the state estimation problem. It is shown that this expansion in powers of the innovation provides a direct relationship between a nonnormal pdf describing the likely distribution of states and a normal pdf determined by powers of the forecast error. One implication of this perspective is that when state estimation is performed on a nonnormal pdf it leads to state estimates based on the mean to be nonlinear functions of the innovation. A direct relationship is shown between the degree to which the state estimate varies with the innovation and the moments of the distribution. These and other implications of this new view of ensemble state estimation in nonlinear systems are illustrated in simple scalar systems as well as on the Lorenz attractor.
Physical Review Letters Correspondence (2015)

Email discussion with the editor of Review Letters on 2 January 2003 over the mechanism of gravity (see http://vixra.org/abs/1305.0012 for brief summary or http://vixra.org/abs/1111.0111 and related uploads to vixra for more detail). Notice that Stanley G. Brown, editor of PRL, makes a large number of unproved, misleading, speculative and false assertions in failing to publish the paper (which he falsely claims is speculative, suggesting he has not read it or checked the calculations made) and begins with the assertion that I have a doctorate, which is incorrect and proves that even my covering letter letter has not been read. When you exclude all the incorrect statements made by Stanley G. Brown, you are left with merely Physical Review Letters does not, in general, publish papers on alternatives to currently accepted theories ... This tells you a lot about the stagnation of quantum gravity in peer reviewed journals since 2003. These people are proved ignorant by their replies, and do not even read the letters to see whether authors have a PhD or not. So, given that error, why trust their judgement to censor the paper itself? There was a further exchange of emails with the associate editor over a longer period, in which the associate editor correctly called the mechanism an extremely non-standard theory, but it turned out that instead of praising the new idea for its accurate prediction of the amount of dark energy two years before observation, what he really meant was that he only wanted spin-2 superstring theories of the failed Edward Witten variety that did not predict the observed dark energy.
Universally Composable Client-to-Client General Authenticated Key Exchange (2007)

In large-scale networks, users want to be able to communicate securely with each other over a channel that is unreliable. When the existing 2- and 3-party protocols are realized in this situation, there are several problems: a client must hold many passwords and the load on the server concerning password management is heavy. In this paper, we define a new ideal client-to-client general authenticated key exchange functionality, where arbitrary 2-party key exchange protocols are applicable to protocols between the client and server and between servers. We also propose a client-to-client general authenticated key exchange protocol C2C-GAKE as a general form of the client-to-client model, and a client-to-client hybrid authenticated key exchange protocol C2C-HAKE as an example protocol of C2C-GAKE to solve the above problems. In C2C-HAKE, a server shares passwords only with clients in the same realm respectively, public/private keys are used between respective servers, and two clients between different realms share a final session key via the respective servers. Thus, with regard to password management in C2C-HAKE, the load on the server can be distributed to several servers. In addition, we prove that C2C-HAKE securely realizes the above functionality. C2C-HAKE is the first client-to-client hybrid authenticated key exchange protocol that is secure in a universally composable framework with a security-preserving composition property.
The Hemodynamics of Septic Shock: A Historical Perspective (2013)

In the late 19th century, it was already known that severe infections could be associated with cardiovascular collapse, a fact essentially attributed to cardiac failure. A major experimental work in the rabbit, published by Romberg and Pässler in 1899, shifted attention to disturbed peripheral vascular tone as the mechanism of hypotension in these conditions. In the first half of the 20th century, great progresses were made in the pathophysiologic understanding of hemorrhagic and traumatic shocks, while researchers devoted relatively little attention to septic shock. Progress in the hemodynamic understanding of septic shock resumed with the advent of critical care units. The hyperdynamic state was recognized in the late fifties and early sixties. The present short review ends with landmark studies by Max Harry Weil, demonstrating the importance of venous pooling, and John H. Siegel, which introduced the concept of deficient peripheral utilization of oxygen, inspiring later work on the microvascular disturbances of septic shock.
Reactivity of malononitrile towards sulphamide and N-substituted sulphamides: synthesis and hydrolysis reactions of 3,5-diamino-1,2,6-thiadiazine 1,1-dioxides (1988)

The reaction of sulphamide and N-substituted sulphamides with malononitrile under acid catalysis gave respectively 3,5-diamino- 4H- or 2H-1,2,6-thiadiazine 1,1-dioxides (1) and (3a–d). Mild acid hydrolysis of the latter afforded 5-amino-2H-1,2,6-thiadiazin-3(4H)-one 1,1-dioxides (5a–d) in excellent yield. No convenient methods for the preparation of all these compounds had previously been reported.
Visual Servoing of Quadrotor Micro-Air Vehicle Using Color-Based Tracking Algorithm (2010)

This paper describes a vision-based tracking system using an autonomous Quadrotor Unmanned Micro-Aerial Vehicle (MAV). The vision-based control system relies on color target detection and tracking algorithm using integral image, Kalman filters for relative pose estimation, and a nonlinear controller for the MAV stabilization and guidance. The vision algorithm relies on information from a single onboard camera. An arbitrary target can be selected in real-time from the ground control station, thereby outperforming template and learning-based approaches. Experimental results obtained from outdoor flight tests, showed that the vision-control system enabled the MAV to track and hover above the target as long as the battery is available. The target does not need to be pre-learned, or a template for detection. The results from image processing are sent to navigate a non-linear controller designed for the MAV by the researchers in our group.
Phosphate starvation response controls genes required to synthesize the phosphate analog arsenate (2018)

Environmental arsenic poisoning affects roughly 200 million people worldwide. The toxicity and mobility of arsenic in the environment is significantly influenced by microbial redox reactions, with arsenite (As<sup>III</sup> ) being more toxic than arsenate (As<sup>V</sup> ). Microbial oxidation of As<sup>III</sup> to As<sup>V</sup> is known to be regulated by the AioXSR signal transduction system and viewed to function for detoxification or energy generation. Here, we show that As<sup>III</sup> oxidation is ultimately regulated by the phosphate starvation response (PSR), requiring the sensor kinase PhoR for expression of the As<sup>III</sup> oxidase structural genes aioBA. The PhoRB and AioSR signal transduction systems are capable of transphosphorylation cross-talk, closely integrating As<sup>III</sup> oxidation with the PSR. Further, under PSR conditions, As<sup>V</sup> significantly extends bacterial growth and accumulates in the lipid fraction to the apparent exclusion of phosphorus. This could spare phosphorus for nucleic acid synthesis or triphosphate metabolism wherein unstable arsenic esters are not tolerated, thereby enhancing cell survival potential. We conclude that As<sup>III</sup> oxidation is logically part of the bacterial PSR, enabling the synthesis of the phosphate analog As<sup>V</sup> to replace phosphorus in specific biomolecules or to synthesize other molecules capable of a similar function, although not for total replacement of cellular phosphate.
New insights into the mechanisms and importance of the proteasome in intracellular protein degradation. (1997)

Recent studies of the 20S proteasome from Thermoplasma acidophilum have uncovered some fundamental new properties of its catalytic mechanism. Unlike conventional proteases, 20S and 26S proteasomes degrade protein substrates in a highly processive fashion. They cleave a protein substrate to small peptides before attacking another substrate molecule. This processive behavior is an inherent feature of the 20S particle not requiring cofactors or ATP hydrolysis. Recently, we have described a proteasome-like particle, HslVU, in Escherichia coli. HslVU is a two-component ATP-dependent protease composed of the proteasome-related peptidase HslV (beta-subunit) and the ATPase HslU. In active HslVU complex, cleavage of small peptides and proteins requires the presence of ATP. EM analysis revealed that HslV and HslU are both ring-shaped particles and that the active HslVU complex is a cylindrical four-ring structure, composed of HslV, a two-ring dodecamer, sandwiched between HslU rings. Elucidation of its mode of action may help us understand the role of ATP in function of the 26S proteasome. Several proteasome-specific inhibitors have been recently identified which block the function of proteasome in vivo. These agents have proven very useful to clarify the intracellular function of the proteasome. In mammalian cells, both the rapid degradation of short-lived regulatory proteins and of abnormal polypeptides and the slower degradation of long-lived proteins are blocked by these agents. Thus, in mammalian cells, the proteasome is the site for the degradation of most cell proteins. In contrast, in budding yeast, proteasome inhibitors block the degradation of short-lived proteins but not the breakdown of long-lived proteins, which can be blocked by inhibitors of vacuolar proteases. The inhibition of proteasome function in yeast and mammalian cells, presumably by causing an accumulation of unfolded proteins, triggers the expression of heat shock proteins and concomitantly increases cell resistance to high temperature and various toxic insults.
hPSC‐derived Midbrain Dopaminergic Neurons Generated in a Scalable 3‐D Biomaterial (2018)

Human pluripotent stem cell (hPSC)-derived midbrain dopaminergic (mDA) neurons may facilitate the development of therapies for Parkinson's disease via disease modeling, drug screening, and cell replacement therapy. However, large numbers of cells are typically needed for these applications, and 2-D culture-based approaches typically used for mDA differentiation are difficult to scale up and require a long time for mDA maturation. Here we present a protocol to rapidly generate functional mDA neurons in a fully defined, scalable, thermoresponsive 3-D biomaterial. Resource-efficient and accelerated differentiation of large numbers of mDA neurons may thus facilitate studying and treating PD. © 2018 by John Wiley & Sons, Inc.
The Use of Genetic Markers to Determine Risk for Prostate Cancer at Prostate Biopsy (2005)

Of the 13 polymorphisms, two were found to be positively associated with prostate cancer (TNF308 and KLK2) and two were negatively associated with prostate cancer (GSTT1 and HOGG1-326). Future studies are required to confirm these results.
[Application of antiseptic decasan in purulent infections of pararectal region]. (2011)

The results of studying of antiseptic preparation Decasan for the treatment of patients, suffering purulent infections of pararectal region, are adduced. Efficacy of Decasan was analyzed in 102 patients. The results of investigation obtained are trusting hig antiseptic efficacy of preparation, witnessing possibility of its application as a preparation of choice for the treatment of patients, suffering purulent infections of pararectal region.
Trifluoromethylthiolation of Allylsilanes and Silyl Enol Ethers with Trifluoromethanesulfonyl Hypervalent Iodonium Ylide under Copper Catalysis (2015)

Electrophilic trifluoromethylthiolation of allylsilanes and silyl enol ethers with trifluoromethanesulfonyl hypervalent iodonium ylide has been conducted. In the presence of a catalytic amount of CuF2, the reaction proceeded in modest to high yields under mild conditions.
Integrated Optics: a Report on the 2nd OSA Topical Meeting (1975)

This report surveys the papers presented at the 2nd OSA Topical Meeting on Integrated Optics, which was held 21-24 January 1974 in New Orleans, La.
SEASONAL DIVERSITY AND POPULATION DYNAMICS OF OPHIDIAN FAUNA IN BULDHANA DISTRICT MAHARASTRA INDIA (2015)

The present paper provides the information about the seasonal diversity and population dynamics of ophidian fauna from Buldhana District Maharashtra, India. The study conducted during February 2012 to January 2014. During study the effective protocol was adopted. Study reveals the presence of thirty three varieties of snakes belonging to six families of which ten species were Abundant, four species were Common, eight species were Occasional, and six species Frequent while five were Rare. A general trend of increased population was reported in monsoon while decreased reported during winter to early monsoon.
Vascular Aging: Molecular Modulation of the Prostanoid Cascade by Calorie Restriction (2004)

The relevance of prostanoids to inflammation, thrombosis, and cardiovascular diseases is well known. The present study attempts to explore age effects on prostanoids and their biosynthesis cascade. Results from comparing prostanoid levels between young (6 months) and old (24 months) Fischer 344 rats showed rises of prostaglandin E2 (PGE2), PGI2, and thromboxane A2 (TXA2) levels in the old rats. Correlating evidence showed gene expression up-regulation of several prostanoid synthase enzymes in old rat aorta. Further, we found that expression of the antioxidant enzyme glutathione peroxidase was raised by age in the aorta, while superoxide dismutase and catalase expression showed no significant change during aging in the aorta. Moreover, calorie restriction (CR) was found to attenuate age-related prostanoid changes by suppressing inflammatory activities. In conclusion, the data from this study indicated that age-related increases in prostanoids and their biosynthesis might be closely associated with a weakened antioxidant capacity.
Effect of SiC Powder Additive on Mechanical Properties of Al-Pb Alloy Produced by Mechanical Alloying (2018)

One of the major usages for Al–Pb alloy are bearing alloys because of its lubricant behavior of Pb phase component. Applications of these alloys are in heavy duty, such as boring mills, presses, lathes, milling machines and hydraulic pump bushings. In present work, SiC powder was selected as additive for improving the mechanical properties of Al-Pb alloy that produced by mechanical alloying method. The percentage weight of SiC powder are (2.5, 5,10, 15 %) which mixing together with Al- Pb alloy for two hours in ball milling device, then compacted and sintering to obtain the improved alloy, and examine the mechanical properties (compressive strength and microhardness) of produced alloy. Results show that the additive of SiC powder on the Al-Pb alloy lead to improve the microhardness which increased with increased the percentage of additive, in the other hand, the compressive strength had a reverse effective with increased the percentage of SiC powder.
Usage Control Enforcement with Data Flow Tracking for X11 (2009)

Usage control requirements specify restrictions and compulsory actions that relate to the future handling of data. The enforcement of such requirements can and must happen at dierent
Evaluation of API NH, a new 2-hour system for identification of Neisseria and Haemophilus species and Moraxella catarrhalis in a routine clinical laboratory (1994)

API NH is a new 2-h system (bioMérieux, La Balme-les-Grottes, France) for the identification of most Neisseria and Haemophilus spp. of clinical significance and of Moraxella catarrhalis and for the detection of penicillinase production. Furthermore, this system allows the biotyping of Haemophilus influenzae and Haemophilus parainfluenzae. Three hundred eighteen strains belonging to these species, previously identified by conventional methods, were tested. Among the 305 strains belonging to species included in the data base, 225 (73.8%) were identified without additional tests, 79 (25.9%) were correctly identified after extra tests, and 1 strain (0.3%) was misidentified. For 131 (90.3%) of the 145 H. influenzae and H. parainfluenzae strains, results of biotyping were in agreement with results of standard methods. API NH is an accurate and reliable method for the routine identification of these bacteria in a clinical laboratory, for biotyping of Haemophilus spp., and for the detection of penicillinase-producing strains. The system is ready to use and time saving; inoculation of the system and reading of results are easy.
Music Sharing as a Computer Supported Collaborative Application (2005)

New computer applications, such as the infamous “Napster” system enable the sharing of music over the Internet, with limited communication around this sharing activity. This paper discusses the use and opportunities for these music sharing technologies using interviews with users of both conventional and new music sharing technologies. The data show that music sharing is a practice that is richly linked with other social activities. New music is often discovered through friends, by listening to music together, or in the form of compilation tapes. In these environments, sharing music is a natural activity. With music sharing over the Internet, however, much of this social context is removed. This suggests opportunities to turn music sharing into a more collaborative and community-related activity. These opportunities are explored with the “Music Buddy”, a system for browsing others’ music collections without infringing the copyright of artists.
PERFORMANCE ASSESSMENT OF THE SAGE ALGORITHM IN UNKNOWN NOISE FIELDS (2009)

In this paper, we explore the performance of the Space Alternating&#13;\nGeneralized Expectation-Maximization (SAGE) algorithm&#13;\nin estimating the parameters of multipath components&#13;\nin wireless propagation channels. The main goal of this contribution&#13;\nis to extend the theoretical framework of the algorithm&#13;\nto account for the general case of an arbitrary unknown&#13;\nnoise field with non-uniform structure. This scenario is of&#13;\nhigh practical importance since it encounters in several modern&#13;\napplications and, more importantly, inherently encompasses&#13;\nthe common case of white uniform additive noise. In&#13;\nthe sequel, it is thoroughly demonstrated how the accuracy&#13;\nand convergence rate of the estimators are affected by the&#13;\nspatio-temporal parameters of the incoming wavefronts.
The Influence of Pelvis Design on the Lateral Pelvic Impact Response of the Polar-II Pedestrian Dummy (2006)

&lt;div class="htmlview paragraph"&gt;Previous studies utilizing the Polar-II pedestrian dummy have suggested the need for a more biofidelic pelvis design in order to improve the overall dummy response kinematics. The current Polar-II dummy pelvis is a rigid steel structure. A preliminary version of a modified deformable pelvis equipped with sensors for measuring internal deflection and load has been designed. The goal of this study was to assess the biofidelity of these two pelves in full-scale tests with the Polar-II dummy that mimic lateral pelvic impact tests on PMHS (post-mortem human subjects) reported in the literature. The force - time, deflection - time, and force - deflection histories were compared to new PMHS response corridors determined using a normalization technique. In all tests with both pelves, the initial response (i.e., the first 3 ms to 5 ms following initial dummy - impactor contact) appeared to be totally determined by the mechanical behavior of the flesh. The response beyond the first 3 ms to 5 ms was instead influenced by the characteristics of both the flesh and the underlying pelvic structure. Overall, the modified pelvis demonstrated a more biofidelic impact response than its predecessor.&lt;/div&gt;
Growth of crystallites consisting of C60 molecules on heated (100)Mo (1998)

The initial stages of growth of films of C60 molecules on a (100)Mo surface are studied by high-resolution Auger spectroscopy and atomic force microscopy under ultrahigh vacuum conditions. It is shown that at T<750 K, after a specific coating with molecular density 1.5×31014 cm−2, which the authors term a high-temperature (HT) monolayer, has formed on the surface, crystallites in the form of “towers” with flat tops grow on the surface. The fraction of the area occupied by towers depends strongly on the substrate temperature and the flux density of the molecules on the surface but is virtually independent of the exposure time. At temperatures T>760 K the C60 molecules making up the crystallites desorb, while the molecules making up the HT monolayer decompose, and the carbon released is dissolved in the interior of the substrate.
Efficient Synthesis of Ningalin C (2002)

[reaction: see text] A concise and efficient synthesis of the permethyl derivative of the marine alkaloid ningalin C (2) has been accomplished. The key step involves the formation of a pyrrolinone from an aminoquinone in one pot. An efficient route for the synthesis of the key aminoquinone has also been developed.