gebhart/patrepeval huggingface dataset:
Predictive Control of Autonomous Ground Vehicles With Obstacle Avoidance on Slippery Roads (2010)

Two frameworks based on Model Predictive Control (MPC) for obstacle avoidance with autonomous vehicles are presented. A given trajectory represents the driver intent. An MPC has to safely avoid obstacles on the road while trying to track the desired trajectory by controlling front steering angle and differential braking. We present two different approaches to this problem. The first approach solves a single nonlinear MPC problem. The second approach uses a hierarchical scheme. At the high-level, a trajectory is computed on-line, in a receding horizon fashion, based on a simplified point-mass vehicle model in order to avoid an obstacle. At the low-level an MPC controller computes the vehicle inputs in order to best follow the high level trajectory based on a nonlinear vehicle model. This article presents the design and comparison of both approaches, the method for implementing them, and successful experimental results on icy roads.
Comparative pharmacokinetic investigations with tritium-labeled ergot alkaloids after oral and intravenous administration man. (1977)

Pharmacokinetic studies were carried out with nine tritium-labeled ergot alkaloids (dihydroergotmine, dihydroergotoxine, dihydroergostine, dihydroergocornine, dihydroergovaline, dihydroergonine, ergotamine, 1-methyl-ergotamine, and bromocriptine). Each drug was administered to 6 subjects in a randomized cross-over design as single oral and intravenous doses. Plasma levels and urinary excretion of tritium-labeled material were analyzed on a phenomenological basis by non-linear regression as a sum of exponentials. All substances showed the highest plasma concentration about 2 hours after oral administration (range 1.0-2.7 hours). The mean invasion half-life was 0.5 hours (range 0.32-1.12 hours). The mean elimination half-lives ranged from 1.4-6.2 hours for the alpha-phase and from 13 to 50 hours for the beta-phase, the longest values being observed with bromocriptine. From cumulative urinary excretion data after oral and after intravenous administration, a quotient of absorption was calculated. Values between 25 and 30% were found for most dihydrogenated drugs, namely dihydroergotamine, dihydroergotoxine, dihydroergostine, and dihydroergocornine, the only exceptions being dihydroergovaline and dihydroergonine, which were less well absorbed. Ergotamine and 1-methyl-ergotamine had an absorption quotient of about two-thirds and bromocriptine was nearly completely absorbed.
Improving beampatterns of two-dimensional random arrays using convex optimization (2011)

Sensors are becoming ubiquitous and can be combined in arrays for source localization purposes. If classical conventional beamforming is used, then random arrays have poor beampatterns. By pre-computing sensor weights, these beampatterns can be improved significantly. The problem is formulated in the frequency domain as a desired look direction, a frequency-independent transition region, and the power minimized in a rejection-region. Using this formulation, the frequency-dependent sensor weights can be obtained using convex optimization. Since the weights are data independent they can be pre-computed, the beamforming has similar computational complexity as conventional beamforming. The approach is demonstrated for real 2D arrays.
양의 액정을 사용하는 FFS mode에서 액정의 유전율 이방성에 따른 전기 광학 특성 연구 (2008)

The light efficiency of fringe-field switching (FFS) mode when using a liquid crystal (LC) with positive dielectric anisotropy was found to be dependent on the magnitude of dielectric anisotropy, such that the lower dielectric anisotropy, the higher. We studied out not only light efficiency but also response time according to dependence on the magnitude of dielectric anisotropy. Rising and decay time became fast and slow respectively according to decreasing the magnitude of dielectric anisotropy. This paper investigates electro-optical characteristic of FFS mode using LC with a positive dielectric anisotropy dependent on the magnitude of dielectric anisotropy of the LC.
A Durable Response to Relapsing Clostridium difficile Colitis May Require Combined Therapy with High-dose Oral Vancomycin and Intravenous Immune Globulin (2006)

Background: Recurrent Clostridium difficile antimicrobial-induced diarrhea follows initial successful therapy with metronidazole or oral vancomycin in 5% to 65% of patients. Specific antibody formation to Toxin A of C. difficile has been found in those patients who remain asymptomatic or experience a single episode of diarrhea after their initial infection. Because those individuals who often cannot produce specific antibody develop relapsing colitis, we administered intravenous immune globulin (IVIG) to 20 such hospitalized patients and evaluated their responses. Materials and Methods: C. difficile immunoglobulin G antibody was measured in 18 of 20 patients with recurrent colitis using an enzyme-linked immunosorbent assay. All patients were subsequently placed on oral vancomycin (dosage, 500 mg 3 times a day) and 2 doses of IVIG (dosage, 30 g within 24 to 96 hours after antibody levels were drawn). The time interval between both doses was about 24 hours. Results: Eighteen of 20 patients had a durable response to the previously mentioned therapy, of which 1 case recurred within a 3-month follow-up period. Two patients responded to therapy but died of underlying or associated disease (one of pneumonia and one of congestive heart failure). Ten patients also received oral Saccharomyces boulardii, a nonpathogenic yeast. One of these patients died of heart failure and another had a recurrent disease. Conclusions: IVIG and high-dose oral vancomycin may be an effective regimen in eradicating relapsing C. difficile colitis, probably confirming the suspicion that patients who develop the disease lack the ability to produce adequate quantities of neutralizing immunoglobulin G antibody against Toxin A. Oral S. boulardii may help maintain freedom from relapse, which, however, was not confirmed in this study, and its use could be complicated by fungemia.
Validation of Motif graphical user interface widget set (2002)

Discusses Motif Validation Environment (MVE), a set of tools to produce test suites to validate the conformance of Motif implementation to its specification. The complexity of graphical user interfaces makes validation a task which requires significant time and effort. By automating the process of test generation and test runs, MVE provides a solution to the problem of manual testing. MVE consists of a language to describe the behavior of Motif widgets and default characteristics, a parser for parsing the syntax of the language, a test generator, and a controlled environment for automatically and consistently validating the conformance of Motif implementations to Motif Widget Set specifications. The test runs produce a profile of known and detected discrepancies which may be used to identify and resolve the implementation issues. MVE also provides a set of support libraries for input synthesis (synthesis of events) and checking the correctness of the visuals.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Variation in USF1 shows haplotype effects, gene : gene and gene : environment associations with glucose and lipid parameters in the European Atherosclerosis Research Study II (2004)

Upstream stimulatory factor 1 (USF 1), is a transcription factor controlling expression of several genes involved in lipid and glucose homeostasis and co-localizes with familial combined hyperlipidemia (FCHL) and type 2 diabetes on chromosome 1q22-23. We sequenced USF1 in 24 UK FCHL probands, but found no rare or common cSNPs. Three common intronic single nucleotide ploymorphisms (SNP), 306A>G, 475C>T and 1748C>T, were identified and their association was examined with fasting and postprandial lipids and after an oral glucose tolerance test (OGTT) in the European Atherosclerosis Research Study II offspring study. There were no significant differences in allelic frequencies of the SNPs between cases and controls. Individually none of the SNPs showed significant associations with any parameter. In haplotype analysis, compared with other haplotypes, 475C/1748T showed significantly higher and 475T/1748T showed lower peak glucose (P=0.004 and 0.07, respectively) during the OGTT. There was significant case-control heterogeneity in the interaction of genotype with body mass index, on fasting low density lipoprotein with 306A>G and 1748C>T, and on borderline significance with fasting glucose with 475C>T (P=0.002, 0.0007 and 0.015, respectively). Furthermore, 475C>T showed interaction with both HSL-60C>G (case-control heterogeneity P=0.0002) on AUC TG and APOC3 -482C>T on plasma apoE levels (P=0.0012). Thus, in these healthy young men, variation in USF1 was the influencing feature of both glucose and lipid homeostasis showing case-control heterogeneity.
Effects of subinhibitory concentrations of antibiotics on Staphylococcus aureus interactions with fibronectin (1983)

Bacterial adherence to host tissues relies on interactions between tissue macromolecules and bacterial surface molecules. One of the major predisposing factors to infection with Staphylococcus aureus is trauma to tissues. A common element in traumatized tissues is fibronectin. In previous studies, we have shown that fibronectin binds to Staph. aureus. In this paper, we have investigated the effects of subinhibitory concentrations of antibiotics on fibronectin interactions with Staph. aureus. Exposure of Staph. aureus to 1/4 MIC of penicillin increases the number of binding sites and enhances adherence of Staph. aureus to a collagen-fibronectin matrix. Chloramphenicol, erythromycin, clindamycin, and U57,930E all decreased the number of binding sites. Also, U57,930E reduced Staph. aureus adherence to a collagen-fibronectin matrix. Taken together, these data suggest that penicillin may enhance Staph. aureus adherence to tissue fibronectin whereas U57,930E might reduce such binding.
Alterations of Alkaline Phosphatase in Mouse Tissues after Experimental Infection (1967)

SummaryThe alkaline phosphomonoes-terase activity of several mouse tissues and serum has been investigated in uninfected controls and animals infected with Diplo-coccus pneumoniae. No significant change of enzymatic activity was found in kidney, lung, sternum, femur, and spleen. As the infection progressed a decrease in activity was observed in the liver enzyme, while a marked increase occurred in small intestine. The enzymatic activity of the serum also increased during infection, but less strikingly. In organ-specific inhibition experiments it was shown that serum and intestinal enzyme behaved identically. The data support the concept that a major portion of serum AP may originate in the small intestine. Neither the infection-related increase in intestinal AP nor the fall in hepatic AP was dependent upon an intact adrenal gland in the presence of circulating glucocorticoid hormones.
Implementation of wideband integer and fractionaldelay element (1994)

An implementation of a fractional delay filter in combination with an integer delay-line that delivers both wide bandwidth and high resolution is presented. Another advantage of the proposed implementation is that it can have its delay adaptively changed at every sampling instant.
[Laser Doppler vibrometry of the tympanic membrane. Possibilities for objective middle ear diagnosis]. (1993)

In the diagnosis of hearing disorders, the laser velocimeter can be used to advantage. In contrast to previously published studies on measurements at exposed middle and inner ear structures of the human temporal bone, we used a clinically more practical method to obtain results through the intact auditory meatus. We used a laser intensity of less than 1 mW. The measurements were performed in a room with unlimited sound transmission of frequencies between 0.5 and 8 kHz. The signals from the vibration of the tympanic membrane, obtained by this touch-free method, were analyzed by Fourier transform, showing only the fundamental oscillation but not the higher harmonics. Experimental data on middle ear effusions, obtained by fixation of the malleus head and by drilling the temporal bone, are presented.
Pulse-code modulation of video signals: codes specifically designed for PAL (1978)

The paper discusses the application of pulse-code modulation (p.c.m.) techniques to PAL video signals. The choice of sampling frequency is considered, and particular emphasis is laid on simple multiples of the subcarrier frequency. An account is given of factors determining the bit rate required for simple p.c.m. and for when differential-p.c.m. and transform-coding methods are employed. Finally, a possible method for interfacing between composite and component coding systems is described.
A system for cursive handwritten address recognition (2002)

This paper presents a cursive handwritten address recognition system, which consists of four main modules; 1) over-segmentor, 2) dynamic zip locator, 3) zip candidates generator, and 4) city-state-zip verifier. The dynamic zip locator and city-state-zip verifier are based on a flexible matcher for matching a sequence of graphemes with a list of generalized strings. The dynamic zip locator is able to locate zip without knowing exactly where the zip starts. The zip candidates generator uses a hidden Markov model with position-dependent state transition probabilities. A scheme for utilizing prefixes is designed to reduce computation and memory requirement. Finally, the system employs a mechanism for rejection based on rank features extracted from the matching. The overall system achieves an acceptance rate of 83.5% with 3.6% error for 5-digit encoding on 805 USPS cursive address images.
Deep UV to mid-IR generation with laser diodes and nonlinear frequency conversion (2002)

Summary form only given. In conclusion, nonlinear frequency conversion of high power laser diodes has been used to generate radiation over a large wavelength range from deep-uv to mid-IR. Further improvements in output power and available wavelengths of high power laser diodes, as well as improvements in quasi phase matched (QPM) nonlinear materials, can be expected to increase the versatility and range of applications for this technique.
Enabling optoelectronic technologies for optical networking (2002)

In this talk, we will discuss in detail the multiwavelength DFB laser array technologies, and the all-optical wavelength converter technologies. Two types of DFB laser arrays have been developed for the MONET wavelength add-drop multiplexers (WADM) and wavelength terminal multiplexers (WTM). Laser arrays are to be incorporated in the MONET WADM network and WTM networks. Amongst various proposed wavelength conversion techniques, we have investigated the parametric wavelength converter for difference frequency generation in a nonlinear waveguide. The unique feature of the parametric wavelength converter is that it can convert all wavelength simultaneously as it has been demonstrated recently.
Prescribed fenoterol and death from asthma in New Zealand, 1981-7: a further case-control study. (1991)

The association between inhaled fenoterol and death from asthma has been investigated further by studying 112 asthma deaths (cases) during 1981-7 in patients aged 5-45 years who had been admitted to a major hospital for asthma during the 12 months before death. Two age matched control groups were chosen. Control group A comprised 427 patients who had been admitted to hospital for asthma during the calendar year that the corresponding death occurred and who had also had a previous admission for asthma in the previous 12 months. Control group B comprised 448 patients admitted to hospital for asthma during the calendar year in which the admission of the corresponding case occurred. The inhaled fenoterol odds ratio was 2.11 (95% confidence interval (CI) 1.37-3.23, p less than 0.01) when group A was used as the control (the approach used in previous studies), and 2.66 (95% CI 1.74-4.06, p less than 0.01) with group B as the control (the approach recommended by critics of previous studies). Markers of chronic asthma severity were associated with asthma death when control group B was used, but not when control group A was used (which indicates that these markers were indirectly matched for when control group A was used). Information was also collected on various markers of acute asthma severity and prescription of psychotropic drugs, but it was found that these were not important confounders. These findings address the major criticisms of previous case-control studies of this issue, and add support to the hypothesis that inhaled fenoterol increases the risk of death in patients with severe asthma.
Depositories for archives: proposal of 1547 (1939)

Depositories for archives: proposal of 1547 Get access Mary Brown Mary Brown Search for other works by this author on: Oxford Academic Google Scholar Notes and Queries, Volume 176, Issue 7, 18 February 1939, Page 120, https://doi.org/10.1093/nq/176.7.120a Published: 18 February 1939
Throughput maximization for periodic real-time systems under the maximal temperature constraint (2014)

In this article, we study the problem of how to maximize the throughput of a periodic real-time system under a given peak temperature constraint. We assume that different tasks in our system may have different power and thermal characteristics. Two scheduling approaches are presented. The first is built upon processors that can be in either active or sleep mode. By judiciously selecting tasks with different thermal characteristics as well as alternating the processor's active / sleep mode, the sleep period required to cool down the processor is kept at a minimum level, and, as the result, the throughput is maximized. We further extend this approach for processors with dynamic voltage/frequency scaling (DVFS) capability. Our experiments on a large number of synthetic test cases as well as real benchmark programs show that the proposed methods not only consistently outperform the existing approaches in terms of throughput maximization, but also significantly improve the feasibility of tasks when a more stringent temperature constraint is imposed.
A design for high noise rejection in a pseudodifferential preamplifier for hard disk drives (2000)

A study of supply and system noise rejection for a pseudodifferential amplifier is presented in this paper. This pseudodifferential amplifier is aimed at high data-rate disk drive signal sensing and preamplification applications. This high rejection was achieved by improving the rejection of the pseudodifferential amplifier and also by carefully designing the interconnect flex circuit where the preamplifier is mounted. The measured rejection to power supply, ground and system noise is above 50 dB over a 300 MHz bandwidth. This is significant for a pseudodifferential amplification system. The gain of the preamplifier is 47 dB and write mode to read mode switching time is 210 ns. This preamplifier currently supports disk drive data rates over 270 Mb/s.
Malignant mixed müllerian tumor of primary mesenteric origin associated with a synchronous ovarian cancer: case report and literature review. (2008)

Malignant mixed müllerian tumor (MMMT) is a rare tumor in females and extragenital MMMT is even more so. We report a patient with MMMT primarily in the mesentery with synchronous ovarian cancer. In the English literature, 42 cases of extragenital MMMT have been reported other than the presented case, and this is only the second MMMT arising from the mesentery. Furthermore, among the cases reviewed, MMMTs tend to be associated with synchronous or metachronous colonic cancer or gynecologic tumors originating from the müllerian duct, including ovarian tumors, fallopian tube cancer, endometrial cancer, cervical cancer, and serous carcinoma of the peritoneum (14 out of 43 patients; 32.6%). The risk factors for MMMT include obesity, nulliparity, exogenous estrogen, and long-term tamoxifen use. The prognosis of MMMT is catastrophic and the treatment is based on the experience of those of uterine sarcomas, which is composed of operation, radiotherapy and chemotherapy.
Spinodal decomposition of polymer mixtures with a thermotropic liquid-crystalline polymer as one component (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpinodal decomposition of polymer mixtures with a thermotropic liquid-crystalline polymer as one componentAkemi Nakai, Toshio Shiwaku, Hirokazu Hasegawa, and Takeji HashimotoCite this: Macromolecules 1986, 19, 12, 3010–3011Publication Date (Print):December 1, 1986Publication History Published online1 May 2002Published inissue 1 December 1986https://pubs.acs.org/doi/10.1021/ma00166a027https://doi.org/10.1021/ma00166a027research-articleACS PublicationsRequest reuse permissionsArticle Views157Altmetric-Citations61LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Adaptive array processing for multiple microphone hearing aids (1989)

Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1989.
A 60-dB Gain OTA Operating at 0.25-V Power Supply in 130-nm Digital CMOS Process (2014)

This paper presents a 60-dB gain bulk-driven Miller OTA operating at 0.25-V power supply in the 130-nm digital CMOS process. The amplifier operates in the weak-inversion region with input bulk-driven differential pair sporting positive feedback source degeneration for transconductance enhancement. In addition, the distributed layout configuration is used for all the transistors to mitigate the effect of halo implants for higher output impedance. Combining these two approaches, we experimentally demonstrate a high gain of over 60-dB with just 18-nW power consumption from 0.25-V power supply. The use of enhanced bulk-driven differential pair and distributed layout can help overcome some of the constraints imposed by nanometer CMOS process for high performance analog circuits in weak inversion region.