gebhart/patrepeval huggingface dataset:
Detection of Blast-Related Traumatic Brain Injury in U.S. Military Personnel (2011)

DTI findings in U.S. military personnel support the hypothesis that blast-related mild traumatic brain injury can involve axonal injury. However, the contribution of primary blast exposure as compared with that of other types of injury could not be determined directly, since none of the subjects with traumatic brain injury had isolated primary blast injury. Furthermore, many of these subjects did not have abnormalities on DTI. Thus, traumatic brain injury remains a clinical diagnosis. (Funded by the Congressionally Directed Medical Research Program and the National Institutes of Health; ClinicalTrials.gov number, NCT00785304.).
Phenomenon of Drain Current Instability on p-GaN Gate AlGaN/GaN HEMTs (2014)

In this paper, an observation of drain current instability on p-GaN gate AlGaN/GaN HEMTs is reported. Contrary to the Schottky gate AlGaN/GaN HEMTs, which show stable and consistent I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">d</sub> -V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">d</sub> curves under different pulsed conditions, the I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">d</sub> -V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">d</sub> curves for p-GaN gate AlGaN/GaN HEMTs show a dispersion in the saturation region under the same pulse conditions, which cannot be explained by the trapping of electrons in the material. A model considering the trapping of holes in the p-GaN gate under different gate and drain biases is proposed to explain this new phenomenon.
Simultaneous dual molecular contrasts provided by the absorbed photons in photoacoustic microscopy (2010)

We investigated the feasibility of simultaneously imaging two distinctive molecular contrasts provided by the absorbed photons in biological tissues with a single light source. The molecular contrasts are based on two physical effects induced by the absorbed photons: photoacoustics (PA) and autofluorescence (AF). In an integrated multimodal imaging system, the PA and AF signals were detected by a high-sensitivity ultrasonic transducer and an avalanche photodetector, respectively. The system was tested by imaging ocular tissue samples, including the retinal pigment epithelium and the ciliary body. The acquired images provided information on the spatial distributions of melanin and lipofuscin in these samples.
Effects of Sodium Sulfite on Recovery and Composition of Detergent Fiber and Lignin (1996)

Use of sodium sulfite to reduce nitrogenous contamination in fiber analysis was evaluated. The effects of sodium sulfite on analytical accuracy and precision were examined for amylase-treated neutral detergent fiber (aNDF), sequentially determined acid detergent fiber (sADF), and acid detergent lignin (sADL) in animal feeds. In one experiment, 0.5 g sodium sulfite was added per sample during neutral detergent (ND) extraction. The treatment consistently reduced aNDF, sADF, and sADL values of 180 alfalfa samples and improved precision (decreased within-sample variance of replicated analyses). The greatest effect was on precision of sADL analysis, with within-sample variance reduced by more than 50%. In a second experiment, 24 animal feeds were analyzed for a aNDF, sADF, and sADL with and without addition of 0.5 g sodium sulfite per sample during ND extraction. Nitrogen contents of the recovered fiber fractions were determined. Sodium sulfite reduced fiber and lignin values and decreased nitrogen concentration in residues. Within-sample variance was lower in all analyses. In a third experiment, 23 animal feeds were analyzed for aNDF with sodium sulfite at 0, 0.25, 0.5, and 1.0 g per sample. Average aNDF of feeds was reduced by each additional increment of sodium sulfite; however, 1.0 g sodium sulfite resulted in only a slight reduction in aNDF compared with 0.5 g. Therefore, 0.5 g sodium sulfite per sample should be added to samples prior to aNDF analysis.
Comparison of Multiple Cloud Frameworks (2012)

Today, many cloud Infrastructure as a Service(IaaS) frameworks exist. Users, developers, and administrators have to make a decision about which environment is best suited for them. Unfortunately, the comparison of such frameworks is difficult because either users do not have access to all of them or they are comparing the performance of such systems on different resources, which make it difficult to obtain objective comparisons. Hence, the community benefits from the availability of a testbed on which comparisons between the IaaS frameworks can be conducted. FutureGrid aims to offer a number of IaaS including Nimbus, Eucalyptus, OpenStack, and OpenNebula. One of the important features that FutureGrid provides is not only the ability to compare between IaaS frameworks, but also to compare them in regards to bare-metal and traditional high performance computing services. In this paper, we outline some of our initial findings by providing such a testbed. As one of our conclusions, we also present our work on making access to the various infrastructures on FutureGrid easier.
Immunity and vaccines against sexually transmitted Chlamydia trachomatis infection (2010)

C. trachomatis, an obligate intracellular bacterium, is the commonest sexually transmitted infection worldwide and is associated with reproductive pathology. To develop rational vaccines it is necessary to understand the complex lifecycle of the organism, the host immune response to infection and how these relate to disease. Infection does not prevent re-infection and antibiotic treatment prevents antibody production at a population level. It remains unclear what type of immune response would be sufficient to prevent infection and/or re-infection. Although the prevalence and demographics of infection and the severity of disease associations suggest that it would be desirable, there is no vaccine currently available. A number of studies have identified novel vaccine candidates.
The Feasibility of Fully Automated Pacemaker Advise in Treating Atrial Tachyarrhythmias (2010)

This study demonstrates that experienced cardiologists agree with 95% of the observations and programming suggestions that the TA automatically generates.
IP over Optical Networks: A Framework (2004)

The Internet transport infrastructure is moving towards a model of high-speed routers interconnected by optical core networks. The architectural choices for the interaction between and optical network layers, specifically, the routing and signaling aspects, are maturing. At the same time, a consensus has emerged in the industry on utilizing IP-based protocols for the optical control plane. This document defines a framework for over Optical networks, considering both the IP-based control plane for optical networks as well as IP-optical network interactions (together referred to as IP over optical networks).
Schaum's Outline of Theory and Problems of Finite Element Analysis (1995)

ematical Background One-Dimensional Finite Elements Two- Dimensional Finite Elements Variational Principles, Galerkin Approximation, and Partial Differential Equations Isoparametric Finite Elements Selected Topics in Finite Element Analysis References Appendix: Computer Code for Coupled Steady-State Thermoelasticity
Purification and Characterization of N-β-Alanyl-5-S-glutathionyl-3,4-dihydroxyphenylalanine, a Novel Antibacterial Substance of Sarcophaga peregrina (Flesh Fly) (1996)

We purified a novel antibacterial substance from immunized adult Sarcophaga and determined its molecular structure to be N-beta-alanyl-5-S-glutathionyl-3,4-dihydroxyphenylalanine (5-S-GAD). We synthesized 5-S-GAD enzymatically from N-beta-alanyl-3, 4-dihydroxyphenylalanine (beta-Ala-Dopa) and reduced glutathione (GSH). The antibacterial activity of 5-S-GAD was found to be due to its production of H2O2. This is a novel antibacterial mechanism as it differs from the mechanisms of known antibacterial peptides. Two possible roles of 5-S-GAD in insect immunity, suppression of bacterial growth and activation of a Rel family transcription factor, are proposed.
Antimicrobial activity of a nisin-activated plastic film for food packaging (2005)

Nisin-activated film may control bacterial growth, maintaining food quality, safety and extending the shelf-life of food products.
서정적 감성의 현재적 의미 연구 -박봉우의「소묘(素描)」 시편을 중심으로 (2011)

본고는 박봉우의 「素描」시편을 중심으로 하여 서정적 감성/서정성의 현재적 의미를 탐구한 시론이다. 서정적 감성의 한 가지 특성은 시간의 제약을 받지 않는다는 점이다. 박봉우의 서정시에 대한 기존의 연구는 그런 특성에 집중하지 않았다. 다른 서정시의 경우에도 사정은 비슷하다. 그러나 그와 같은 서정적 감성의 본유적 특성은 텍스트의 현재적 의미에 중요한 의미 하나를 덧붙일 수 있다. 본고는 그 점에 착안하여, 박봉우의 「素描」시편들을 고찰하였다. 그 결과 「素描」시 편들은 현재적 의미의 층위에서 독자의 역할로 전이되는 서정적 감성의 혁명적 측면을 지니고 있다는 것을 발견할 수 있었다.
Contribution of Herpesvirus Specific CD8 T Cells to Anti-Viral T Cell Response in Humans (2010)

Herpesviruses infect most humans. Their infections can be associated with pathological conditions and significant changes in T cell repertoire but evidences of symbiotic effects of herpesvirus latency have never been demonstrated. We tested the hypothesis that HCMV and EBV-specific CD8 T cells contribute to the heterologous anti-viral immune response. Volume of activated/proliferating virus-specific and total CD8 T cells was evaluated in 50 patients with acute viral infections: 20 with HBV, 12 with Dengue, 12 with Influenza, 3 with Adenovirus infection and 3 with fevers of unknown etiology. Virus-specific (EBV, HCMV, Influenza) pentamer+ and total CD8 T cells were analyzed for activation (CD38/HLA-DR), proliferation (Ki-67/Bcl-2(low)) and cytokine production. We observed that all acute viral infections trigger an expansion of activated/proliferating CD8 T cells, which differs in size depending on the infection but is invariably inflated by CD8 T cells specific for persistent herpesviruses (HCMV/EBV). CD8 T cells specific for other non-related non persistent viral infection (i.e. Influenza) were not activated. IL-15, which is produced during acute viral infections, is the likely contributing mechanism driving the selective activation of herpesvirus specific CD8 T cells. In addition we were able to show that herpesvirus specific CD8 T cells displayed an increased ability to produce the anti-viral cytokine interferon-gamma during the acute phase of heterologous viral infection. Taken together, these data demonstrated that activated herpesvirus specific CD8 T cells inflate the activated/proliferating CD8 T cells population present during acute viral infections in human and can contribute to the heterologous anti-viral T cell response.
Direct stator flux linkage control technique for a permanent magnet synchronous machine (2004)

A direct stator flux linkage control for permanent magnet synchronous motor is presented. Contrary to conventional direct torque control (DTC), the proposed control, which works with fixed switching frequency, can reduce torque ripple and current distortion. The implementation in a test bench shows the effectiveness of this control.
[Clinical experiences with the analgesic effects of citalopram]. (1997)

Antidepressive drugs influencing the serotonin metabolism have shown some efficacy in treatment of generalised pain syndrome. The aim of the present study was to observe the analgesic effect of citalopram < 1-[3-(dimetilamino)propil]-1-(p-florofenil)-5-ftal+ ++ánkarbonitin > in 20 non depressive patients with chronic pain syndrome (fibromyalgy and/or radicular pain). On the base of a short time (6 weeks) observation a limited clinical effect was observed, however, the Seropram seems to have some benefits in the treatment of chronic pain.
Two nuclear factor binding domains activate expression from the human amyloid beta-protein precursor promoter. (1994)

Amyloid beta-protein is derived from the amyloid beta-protein precursor (APP), and it is a major component of brain amyloid depositions in Alzheimer's disease and Down's syndrome. Overexpression of APP may be one of several factors contributing to amyloid formation. The APP promoter was therefore analyzed to determine the mechanism by which APP gene expression is regulated. Cell type-specific expression from the human APP promoter is accomplished with 94 base pairs upstream from the main transcriptional start site. This promoter region contains two nuclear factor binding domains, designated APB alpha and APB beta. The contribution of these binding domains to promoter activity was analyzed by transient transfection in HeLa and PC-12 cells. Under standard culture conditions, at least 70-90% of the total activity from the APP promoter can be attributed to binding domain APB beta. The recognition domain for this nuclear factor binding site is defined by the sequence GCCGCTAGGGGT (position -93 to -82). The contribution of binding site APB alpha to APP promoter activity is considerably lower and represents 10-30% of the total activity. The recognition site for the nuclear factor that binds to APB alpha is delineated by the sequence GGATCAGCTGAC (position -53 to -42). Elimination of both binding sites causes APP promoter activity in vivo to decline to near background levels.
Multiple metal-metal bonds (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMultiple metal-metal bondsF. A. Cotton Cite this: J. Chem. Educ. 1983, 60, 9, 713Publication Date (Print):September 1, 1983Publication History Received3 August 2009Published online1 September 1983Published inissue 1 September 1983https://pubs.acs.org/doi/10.1021/ed060p713https://doi.org/10.1021/ed060p713research-articleACS PublicationsRequest reuse permissionsArticle Views3022Altmetric-Citations38LEARN 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
Incorporation mechanism of N, Al, and B impurities in chemical vapor deposition of SiC (1995)

In situ doping characteristics of N, Al, and B in step-controlled epitaxy of SiC have been investigated. Clear C/Si ratio dependence was observed in the growth on (0001)Si faces. Doping efficiency of N decreased and those of Al and B increased under the C-rich condition, which agrees with a model proposed as ‘‘site-competition epitaxy.’’ However, doping efficiencies were almost independent of the C/Si ratio on (0001̄)C faces. Based on the results, the incorporation mechanism is discussed.
Conditional Knockout Mice Reveal Distinct Functions for the Global Transcriptional Coactivators CBP and p300 in T-Cell Development (2006)

The global transcriptional coactivators CREB-binding protein (CBP) and the closely related p300 interact with over 312 proteins, making them among the most heavily connected hubs in the known mammalian protein-protein interactome. It is largely uncertain, however, if these interactions are important in specific cell lineages of adult animals, as homozygous null mutations in either CBP or p300 result in early embryonic lethality in mice. Here we describe a Cre/LoxP conditional p300 null allele (p300flox) that allows for the temporal and tissue-specific inactivation of p300. We used mice carrying p300flox and a CBP conditional knockout allele (CBPflox) in conjunction with an Lck-Cre transgene to delete CBP and p300 starting at the CD4- CD8- double-negative thymocyte stage of T-cell development. Loss of either p300 or CBP led to a decrease in CD4+ CD8+ double-positive thymocytes, but an increase in the percentage of CD8+ single-positive thymocytes seen in CBP mutant mice was not observed in p300 mutants. T cells completely lacking both CBP and p300 did not develop normally and were nonexistent or very rare in the periphery, however. T cells lacking CBP or p300 had reduced tumor necrosis factor alpha gene expression in response to phorbol ester and ionophore, while signal-responsive gene expression in CBP- or p300-deficient macrophages was largely intact. Thus, CBP and p300 each supply a surprising degree of redundant coactivation capacity in T cells and macrophages, although each gene has also unique properties in thymocyte development.
Ultrasonic Phased Array Device for Acoustic Imaging in Air (2008)

An ultrasonic phased array device is developed to provide mobility aid for visually impaired people. To perform acoustic imaging, two different linear transducer arrays are constructed using commercially available transducers. The transmitter and receiver arrays are formed with six and four transducer elements, respectively. Individual transducer elements are discrete components with a radius of 1.9 wavelengths and a half-power beamwidth of 43deg at 40.8 kHz center frequency. The transmitter array is formed by aligning the transducers with minimum spacing between the elements. Even this placement leads to the occurrence of unwanted grating lobes in the array response and decreases the field-of-view to 30deg . To eliminate these grating lobes, the elements of the receiver array are placed with a different spacing. Forming the receiver and transmitter arrays with nonidentical element spacing makes the grating lobes to appear at different places. Since the response of the overall system is the product of the directivity patterns of receiver and transmitter arrays, the grating lobes diminish for the overall system and the field-of-view increases.
Evaluation of the memory page migration influence in the system performance (2003)

Current shared-memory multiprocessor CC-NUMA architectures provide a global address space to applications by hardware. However, even though the memory is virtually shared, it is actually physically distributed. Since memory nodes are distributed across the system, the cost of the memory accesses depends on the distance between the node that accesses the data and the node that physically contains the data. To reduce the impact of a bad initial memory placement, some operating systems offer a dynamic memory migration mechanism.In this paper, we want to demonstrate that memory migration mechanisms are a useful approach, but that their performance depends more on related issues, such as the processor scheduling, than on the mechanism itself. To show that, we evaluate the case of the automatic memory migration mechanism provided by IRIX, in Origin systems.We have evaluated several workloads of OpenMP applications under different system conditions such as the processor scheduling policy or the system load. In particular, we have focused on the effects of the page migration mechanism on the CPU time consumed by each application, the processor allocation received, and the speedup, when applying performance-driven scheduling policies.Results show that, if the scheduler is memory conscious, that is, it maintains as much as possible the system stable, the automatic memory page migration mechanism provided by IRIX will improve the execution time of OpenMPapplications. Experiments also show that the combination of performance-driven policies and the memory migration mechanism results in a system that can be automatically self-evaluated and self-configured.
Dithienylbenzobis(thiadiazole) based organic semiconductors with low LUMO levels and narrow energy gaps (2010)

Novel OFET materials showing high mobility (0.77 cm2 V(-1) s(-1)) and good air-stability were developed using a benzobis(thiadiazole) (BBT) unit and the high FET performance was attributed to the low LUMO level and the film morphology.
Performance analysis of an efficient AIFIR echo-tail canceller (2002)

A computationally efficient two-stage echo canceller is proposed. The first stage is a direct form adaptive FIR filter to cancel the main part of the echo response. The second stage cancels the 'tail' part of the echo response. The proposed tail canceller is an adaptive version of the interpolated FIR (IFIR) filter. It is shown that the two-stage canceller meets the 60 dB echo cancellation accuracy for various Bellcore loops. Extensive simulations were carried out to study the effects of the main canceller length as well as the interpolator parameters on the performance of the two-stage echo canceller in the U-interface transceiver for basic rate ISDN. It is shown that the proposed structure compares very favorably with other proposed two stage cancellers.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A synchronous driving approach based on adaptive delay phase-locked loop for stitching CMOS image sensor (2019)

A synchronous driving approach for stitching CMOS image sensor is proposed. Dual terminal signal line driver structure must be considered in the design of row control for high definition CMOS image sensor pixel array. However, as the size of the array increases further, the traditional synchronization technologies such as clock tree cannot be applied because of the stitching technology. Furthermore, this invalidity will cause DC shoot through and dead line. Based on the adaptive delay phase-locked loop, dual terminal signal line driver with highly efficient synchronization for pixel array is realized in a single die CMOS image sensor with 225M pixels and large area of 120 × 120 mm2. The comparison results show that the timing matching improves by two orders of magnitude, and the consistency reaches 99.95%.
Dynamics of Parathyroid Hormone Secretion in Health and Secondary Hyperparathyroidism (2007)

This review examines the dynamics of parathyroid hormone secretion in health and in various causes of secondary hyperparathyroidism. Although most studies of parathyroid hormone and calcium have focused on the modification of parathyroid hormone secretion by serum calcium, the relationship between parathyroid hormone and serum calcium is bifunctional because parathyroid hormone also modifies serum calcium. In normal animals and humans, factors such as phosphorus and vitamin D modify the basal parathyroid hormone level and the maximal parathyroid hormone response to hypocalcemia. Certain medications, such as lithium and estrogen, in normal individuals and sustained changes in the serum calcium concentration in hemodialysis patients change the set point of calcium, which reflects the serum calcium concentration at which parathyroid hormone secretion responds. Hypocalcemia increases the basal/maximal parathyroid hormone ratio, a measure of the relative degree of parathyroid hormone stimulation. The phenomenon of hysteresis, defined as a different parathyroid hormone value for the same serum calcium concentration during the induction of and recovery from hypo- and hypercalcemia, is discussed because it provides important insights into factors that affect parathyroid hormone secretion. In three causes of secondary hyperparathyroidism--chronic kidney disease, vitamin D deficiency, and aging--factors that affect the dynamics of parathyroid hormone secretion are evaluated in detail. During recovery from vitamin D deficiency, the maximal parathyroid hormone remains elevated while the basal parathyroid hormone value rapidly becomes normal because of a shift in the set point of calcium. Much remains to be learned about the dynamics of parathyroid hormone secretion in health and secondary hyperparathyroidism.