gebhart/patrepeval huggingface dataset:
A robust high-throughput tree algorithm using successive interference cancellation (2005)

A novel random access protocol combining a tree algorithm (TA) with successive interference cancellation (SIC) has been introduced recently. By migrating physical layer benefits to the medium access control (MAC) through a cross-layer approach, SICTA can afford stable throughput as high as 0.693. However, SICTA may lead to deadlocks caused by channel fading and error propagation in error-prone wireless networks. To mitigate such effects, we put forth a truncated version of SICTA that we term SICTA/FS (SICTA with first success). We establish using analysis and simulations that while providing high throughput, SICTA/FS is robust to errors, it is easy to implement, and can be readily incorporated to existing standards.
Evolutionary thinking in environmental economics (2007)

Evolutionary and environmental economics have a potentially close relationship. This paper reviews past and identifies potential applications of evolutionary concepts and methods to environmental economics. This covers a number of themes: resource use and ecosystem management; growth and environmental resources; economic and evolutionary progress; and individual behavior and environmental policy. The treatment will address both biological and economic—including institutional, organizational and technological-evolutionary phenomena. Attention will be drawn to the fact that evolutionary economics shows a surprising neglect of environmental and natural resource factors.
PLAG enhances macrophage mobility for efferocytosis of apoptotic neutrophils via membrane redistribution of P2Y2 (2019)

Neutrophil activity, including trapping of damage-associated molecular patterns by neutrophil extracellular traps (NETs), is an important response to microbial infection. Most activated neutrophils commit to apoptosis and are removed by activated macrophages in the process of efferocytosis. Improper clearance of apoptotic neutrophils often causes an unnecessary and exaggerated immune response and subsequent chronic inflammation. Effective macrophage mobility toward activated neutrophils, which is triggered by binding of 'find-me' signals to receptors such as P2Y2, is a crucial step for the timely clearance of apoptotic neutrophils. In this paper, we investigated the effect of 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG) on efferocytosis and the underlying molecular mechanisms. In a coculture of apoptotic neutrophils with macrophages, PLAG treatment increased levels of efferocytosis of apoptotic neutrophils. PLAG induced faster translocation of P2Y2 from lipid rafts to nonlipid raft plasma membrane domains in macrophages. This repositioning of P2Y2 enables the polarization of the cytoskeleton by association of the receptor with cytoskeletal proteins such as α-tubulin and actin to improve the mobility of macrophages. The formation of vesicular, chylomicron-like structures by PLAG was a prerequisite for the induction of this macrophage activity, as none of these effects was seen when the vesicle receptor GPIHBP1 was absent. Taken together, these data showed that PLAG is a powerful immune resolvent that triggers the prompt clearance of apoptotic neutrophils by enhanced efferocytosis activity. PLAG could therefore be an effective lipid-based efferocytosis enhancer for use as a therapeutic drug to prevent inflammatory disease caused by uncontrolled immune responses.
Nondestructive analysis of Si3N4/SiO2/Si structures using spectroscopic ellipsometry (1981)

The electrical properties of Si3N4/SiO2/Si structures, which are currently used in integrated circuits technology, are largely dependent upon the structure and the chemical composition of the interface regions which may be a few Å thick. Such locked-in regions are difficult to analyze by destructive techniques like secondary ion mass spectroscopy (SIMS) or Auger electron spectroscopy (AES) with ion milling. We show that spectroscopic ellipsometry, operating in the 1.5–6 eV range, is capable of nondestructively analyzing the interface region. The method is demonstrated on standard atmospheric pressure chemical vapor deposition (CVD) nitride layers and the results are compared with ion-milling AES data. The effects of O2 annealing and NH3:SiH4 ratios are also investigated.
Farnesyltransferase Inhibitor Induces Rapid Growth Arrest and Blocks p70s6k Activation by Multiple Stimuli (2000)

We have previously shown that the peptidomimetic farnesyltransferase inhibitor L-744,832 (FTI) inhibits p70s6k activation and cell growth in a mouse keratinocyte cell line but only at concentrations of FTI significantly higher than those required for the inhibition of Ras farnesylation. Here we show that the rapid kinetics of FTI inhibition of DNA synthesis (within 1.5 h) in both normal and v-K-Ras transformed keratinocytes matches the rapid kinetics of p70s6k inhibition observed previously. It is further shown that FTI inhibits p70s6k activation in response to serum, phorbol myristate acetate, and increased amino acid levels. The phosphatase inhibitor calyculin A partially reverses the FTI-induced dephosphorylation of p70s6k, suggesting that FTI may act upstream of a protein phosphatase. A rapamycin-resistant mutant of p70s6k is shown to be resistant to FTI-induced dephosphorylation of the major rapamycin-sensitive phosphorylation site of p70s6k, Thr(389). Together, these data demonstrate that FTI rapidly inhibits DNA synthesis irrespective of the presence of v-K-Ras and that FTI inhibits p70s6k activation in response to multiple stimuli. Because the FTI L-744,832 mimics many of the effects of rapamycin, this FTI may prove effective against tumors that exhibit inappropriate activation of the mTOR/p70s6k pathway.
Pulmonary Functional Imaging: Qualitative Comparison of Fourier Decomposition MR Imaging with SPECT/CT in Porcine Lung (2011)

This animal experiment demonstrated qualitative agreement in the assessment of regional lung ventilation and perfusion between contrast media-free and radiation-free FD MR imaging and conventional SPECT/CT.
DUAL ENERGY COMPUTED TOMOGRAPHY WITH SPECTRAL FILTERING ON A GE CT/T 9800 SYSTEM (1985)

Fourth International Workshop on Bone and Soft Tissue Densitometry Using Computed Tomography: PROCEEDINGS: PDF Only
Formation of Titanium Compounds, So-called Titanium Bear, in the Blast Furnace Hearth (1977)

Titanium compounds, so -called titanium bear, are generally formed in the blast furnace hearth, because iron are contains more or less titanium oxide. Physico-chemical examinations were carried out on the titanium com. bowzds picked u}) from the blown-ollt blast furnance hearth.
Augmentation of demineralized bone matrix (DBM) mineralization by a synthetic growth factor mimetic (2006)

Abstract These studies evaluated whether F2A4‐K‐NS, a peptide mimetic of FGF‐2, could augment ectopic bone production following the subcutaneous implant of human demineralized bone matrix (DBM). DBM was formulated into a gel with and without F2A4‐K‐NS, and injected subcutaneously into athymic rats. After 28 days the resultant tissue was excised and fixed. The tissue was examined with soft X‐rays and microcomputerized tomography (micro‐CT), and by histological methods. Inclusion of F2A4‐K‐NS with DBM resulted in an increased mineral deposition as determined by soft X‐ray and micro‐CT analysis and von Kossa staining. DBM‐containing tissues showed extensive mineralization compared to the carrier alone, which was poorly mineralized. The mineralization was qualitatively and quantitatively the most extensive in the samples containing F2A4‐K‐NS plus DBM. Additionally, the highest amount of von Kossa staining for calcium was observed in tissues from animals that had received DBM plus F2A4‐K‐NS. In these studies, 100 ng of peptide per 0.2 mL of injectable DBM gel generated the most optimal results. The synthetic peptide F2A4‐K‐NS augmented DBM‐induced ectopic mineralization in athymic animals. © 2006 Orthopaedic Research Society. © 2006 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 24:2051–2058, 2006
Exploration of wound physiology using THz imaging (2014)

A pulsed THz imaging system was used to image wound physiology in in vivo rat models. Histamines were injected subcutaneously in varying concentration and the buildup, organization, and dissipation of edema was observed in THz imagery acquired once every hour over the course of three hours. Significant shifts in edema were observed initially and then with less significant shifts noted towards the end of the experiment. The results may help elucidate the molecular and mechanisms behind wound physiology.
Terrestrial orchid conservation in the age of extinction (2009)

In response to threats to orchid species, integrated conservation approaches have been adopted (including ex situ and translocation principles) in the SWAFR with the result that a significant, multidisciplinary approach is under development to facilitate conservation of some of the most threatened taxa and build expertise to carry out assisted migration to new sites. Here the past two decades of orchid conservation research in the SWAFR and the role of research-based approaches for managing effective orchid conservation in a global biodiversity hotspot are reviewed.
Synthesis of 5-amino-pyrazol-4-Ní-(bis(metylthio)- methylene)carbohydrazide (2002)

The synthesis of pyrazolic ring systems has been widely studied in the last years with the purpose of finding new molecules with potential biological activity. It has been certainly achieved since now a days, several medications con- tain this kind of structures as active principle. Between them, analgesics, anti- inflammatories, and sedatives are to be emphasized. In this work, the synthesis of new compounds of 5-aminopyrazolic structure by means of the reaction between the alkene and dithiethane push pull derived from N'-(bis(methylthio)methylene)- cyanoacethydrazide and appropriate dinucleophiles is reported. The best results were achieved by reaction of the alkene push pull N'-(bis(methylthio)methylene)-2- cyano-3,3-(bis(methylthio))acrylhydrazide with hydrazine and hydrazide when an excess of the dinucleophiles was used (1:2.5). The intramolecular cyclization occur- ring in the reaction intermediate takes place without participation of the amidic carbonyl, which shows the greater reactivity of the cyano group regarding the NH attack. The results allow to verify the greater push pull character of the ethylene bond than the azometinic one for the reason that in the former the polarized bond will be more stabilized. It could be demonstrated in general, that the better yields were achieved by using the keten-S,S-acetals as electrophilic agents. The goal compounds could be obtained in just one step with higher yields than the reported for similar ring systems. The characterization of the products was carried out by means of elemental quantitative analysis and several spectroscopic methods: Infra Red and Nuclear Mag- netic Resonance Spectroscopies and Mass Spectrometry.
Vertex-To-Vertex Parallel Radiosity on Clusters of PCs. (1997)

In this paper we describe the parallel implementation of the Vertex-To-Vertex Radiosity method on a cluster of PC hosts. We first explain the evaluation of the Form-Factor by casting stochastic rays between pairs of vertices for establishing the visibility ratio between them. We then describe an implementation of the Radiosity computation on top of the millipede system, a strong virtual parallel machine that runs (in user mode) on top of standard distributed environments of PC/NT, interconnected by slow communication media such as the Ethernet. The initial result of this distributed implementation is a large slowdown. Using millipede optimization tools we then work step-by-step on improving the locality of the memory references, until eventually we get good speedups. 1. Introduction Fast generation of a photorealistic rendering of a scene using computer graphic techniques is one of the most challenging tasks today. The involved computational complexity is due to complex interactions o...
Case 19-1992 (1992)

Presentation of CaseA 56-year-old man with Waldenström's macroglobulinemia and severe immunodeficiency was admitted to the hospital because of multiple cutaneous vesicles and oral ulcers.There was a two-year history of Waldenström's macroglobulinemia, with a low-grade B-cell lymphoma. Chlorambucil, cyclophosphamide, vincristine, and prednisone were administered, with little improvement. One year before admission the concentration of IgG was 278 mg, IgA 26 mg, and IgM 5710 mg per 100 ml. Fludarabine monophosphate was administered for nine cycles. The IgM fell to 2.1 g per 100 ml, with a rise in the hematocrit and symptomatic improvement; the concentrations of IgG and IgA . . .
20-fs 1.6-mJ Pulses from a cw-Diode-Pumped Single-Stage 1-kHz Yb Amplifier (2010)

200-fs 2.5-mJ pulses from a fiber-oscillator-seeded DPSS Yb:CaF 2 MOPA are spectrally broadened in Ar and recompressed to 20 fs using a pair of LAK14 prisms. Multi millijoule 12-fs pulses are feasible upon higher-order spectral phase correction.
Mars 96 Aerostat - An overview of technology developments and testing (1997)

The Russian/French Mars Aerostat project was cancelled at the end of 1995. It was foreseen to inject a balloon system (Aerostat), into the Mars atmosphere and to fly 10 days over the Mars surface for in-situ scientific exploration. The Aerostat is packed into a Mars entry module with inflation and deceleration systems. After entry module injection in Mars atmosphere and stabilization by main parachute, the Aerostat is deployed and balloon is inflated in less than 300 seconds to be in flight configuration. The main challenges of the project were to develop a 55003 m cylindrical overpressure balloon made of polyester Mylar film (6 urn thick) and to qualify Aerostat deployment and inflation sequence when hanged from the main parachute. Since the beginning of Aerostat project in 1987, Technical Center of CNES Toulouse was in charge of developing Aerostat system in terms of:
Management of blunt traumatic abdominal wall hernias: A Western Trauma Association multicenter study (2021)

Therapeutic/care management, Level IV.
Costs of Deficient Infrastructure: The Case of Nigerian Manufacturing (1992)

As cities in developing countries continue to grow rapidly, the need to meet the increasing demand for urban infrastructure services has become an important policy problem, since failures to respond adequately to such demand affect productivity and the quality of life in those cities. Based on a survey of manufacturing establishments in Nigerian cities, this paper shows manufacturers' responses to the deficiencies of various public infrastructure services and the extent of the costs of private provisions which serve as the alternatives to the firms. From the empirical observations, the authors develop several policy options: (1) regulatory changes to enable fuller utilisation of existing private provision capacities, such as allowing the sale of excess private power supply; (2) private sector participation in the supply of infrastructure services to make such markets contestable; and (3) pricing policies which will be more efficient in the presence of congestion, systems failures and variations in private provisions by firm size and location.
Antiproliferative <i>ent</i>-Kauranoids from <i>Isodon parvifolius</i> (2006)

Nine new 7alpha,20-epoxy- ENT-kaurane diterpenoids, parvifolines O - W (1 - 9), together with five known analogues, lasiocarpanin (10), rosthorin A (11), longikaurin E (12), adenolin D (13) and longikaurin B (14), were isolated from the leaves of Isodon parvifolius. Their structures were determined by means of spectroscopic analysis. Selected diterpenoids (1 - 10) were tested for their antiproliferative activity against A549, HT-29 and K562 cells. Compounds 3, 7, 8 and 10 showed moderate inhibitory activity against all three cell lines.
Modelling of the Flue Gas Path Control System in a Coal-Fired Power Plant (2008)

The paper presents the model of the dynamic behaviour of the flue gas path in a coal-fired plant, including the relative automation and control system. The model was written in the object-oriented Modelica language, and makes extensive use of the ThermoPower library. The simulation activity has\nprovided very useful clues for the engineering, configuration and tuning of the control, therefore reducing the on-site commissioning time. In particular, simulations allowed to spot some potentially critical flaws in the control system during the engineering phase; also, the simulator was used on the field, during the plant start-up, in order to test potentially critical manoeuvres.\nSome experimental data are reported in this work, to give an overall picture\nof the performed activity.
The role of plasminogen activator in ovulation. (1983)

The role of plasminogen activator in ovulation was investigated using the inhibitor, trans-aminomethylcyclohexane carboxylic acid (t-AMCHA). In the regular cycle rat, the plasminogen activator activity of the follicles increased from the diestrus to the estrus phase. In the latter phase, a proteolytic enzyme which was not inhibited by t-AMCHA appeared. After ovulation, the plasminogen activator activity decreased. When ovulation was induced in immature rats by pregnant mare serum gonadotrophin and human chorionic gonadotrophin, remarkable fibrinolytic activity appeared in the ovaries immediately before ovulation. When t-AMCHA was given in the ovulation-induced rats, the fibrinolytic activity of the ovaries was suppressed, the number of ovulated ova decreased and the timing of ovulation was delayed. When t-AMCHA solution was given to rats in the proestrus phase, ovulation was almost completely suppressed, but aprotinin solution exerted no effect on ovulation. These results suggest that plasminogen activator is a key enzyme in ovulation, and that the chain reaction from plasminogen activator to proteolytic enzyme (including collagenase) is of greater importance than that of plasminogen activator to plasmin.
Advances in Laser Sclerectomy (1992)

LAUCOMA SURGERY has undergone a G continuous process of evolution. There has been significant impetus to search for more successful surgical techniques because of the risk of surgical failure after conventional filtration procedures. These include trephination, thermal sclerostomy, posterior lip sclerectomy, and trabeculectomy. Failure to control the intraocular pressure may occur because of preoperative characteristics, such as aphakia,lP2 young age,3 and race.4 African Americans respond less well to filtration surgery. Previous filter failures decrease chances of success following subsequent filtration attempt^.^ Perioperative factors contributing to failure include incarceration of iris, vitreous, or ciliary processes into the internal ostium.6 Blood or fibrin may also occlude the ostium. Excessive conjunctival and episcleral inflammation and hemorrhage, tissue manipulation, subconjunctival fibrosis, tight scleral sutures, and uveitis can lead to closure of the sclerectomy opening and bleb Trabeculectomy is a guarded filtration procedure distinct from the other available procedures. Postoperative complications associated with fullthickness surgery are higher, leading to trabeculectomy as the preferred procedure of most surgeon^.^ Patients who have had repeated surgical failures following conventional filtration procedures and patients with neovascular glaucoma that does not respond to routine glaucoma surgery may do better with drainage shunts and implants.lOJ1 The recognition of the importance of wound healing as a cause of surgical failure has led to the widespread use of wound modulating agents, such as 5-flU01-0uracil, and recently mitomycin-C, with improved suc~ess.~~J~
The Role of Social Networking Sites in Medical Genetics Research (2013)

Social networking sites (SNS) have potential value in the field of medical genetics as a means of research subject recruitment and source of data. This article examines the current role of SNS in medical genetics research and potential applications for these sites in future studies. Facebook is the primary SNS considered, given the prevalence of its use in the United States and role in a small but growing number of studies. To date, utilization of SNS in medical genetics research has been primarily limited to three studies that recruited subjects from populations of Facebook users [McGuire et al. (2009); Am J Bioeth 9: 3-10; Janvier et al. (2012); Pediatrics 130: 293-298; Leighton et al. (2012); Public Health Genomics 15: 11-21]. These studies and a number of other medical and public health studies that have used Facebook as a context for recruiting research subjects are discussed. Approaches for Facebook-based subject recruitment are identified, including paid Facebook advertising, snowball sampling, targeted searching and posting. The use of these methods in medical genetics research has the potential to facilitate cost-effective research on both large, heterogeneous populations and small, hard-to-access sub-populations.
Effect of Age on the Febrile Response of Rats to Endogenous Pyrogen (1985)

Mechanisms underlying the decreased febrile response in the elderly have not been elucidated. One hypothesis is that elderly persons have a decreased response at the hypothalamic or peripheral effector level to endogenous pyrogen (EP). We studied the response to human monocyte-derived EP in young adult and aged Fischer 344 rats, a strain known to have an age-dependent decrease in the febrile response to endotoxin. EP was given intraperitoneally to aged and young adult rats kept at 26 degrees C (thermoneutral zone) or at 15 degrees C (a mild cold stress), in order to accentuate possible peripheral thermoeffector defects. At 26 degrees C, the febrile response in aged rats was similar to that in young adult rats. At 15 degrees C, the febrile response was lower in both groups, but the aged rats did not differ from the young adult rats. When EP was given by intracerebroventricular injection to aged and young adult rats, at 26 or at 15 degrees C, no differences in the febrile responses were noted. Thus, it appears that in aged Fischer rats the hypothalamic response and the peripheral effector response to EP are intact. Further studies on the production and release of EP by rat monocytes are needed to explain the diminished febrile response to endotoxin in the aged rat.
THz time-domain spectrometer based on asynchronous optical sampling with a femtosecond semiconductor disk laser (2010)

We combine high-speed asynchronous optical sampling with semiconductor disk femtosecond laser technology and realize a high-resolution THz time-domain spectrometer without mechanical delay. The system has great potential for size and cost reduction of existing systems.
Leukemia Risk Associated with Benzene Exposure in the Pliofilm Cohort. II. Risk Estimates (1994)

The detailed work histories of the individual workers composing the Pliofilm cohort represent a unique resource for estimating the dose-response for leukemia that may follow occupational exposure to benzene. In this paper, we report the results of analyzing the updated Pliofilm cohort using the proportional hazards model, a more sophisticated technique that uses more of the available exposure data than the conditional logistic model used by Rinsky et al. The more rigorously defined exposure estimates derived by Paustenbach et al. are consistent with those of Crump and Allen in giving estimates of the slope of the leukemogenic dose-response that are not as steep as the slope resulting from the exposure estimates of Rinsky et al. We consider estimates of 0.3-0.5 additional leukemia deaths per thousand workers with 45 ppm-years of cumulative benzene exposure to be the best estimates currently available of leukemia risk from occupational exposure to benzene. These risks were estimated in the proportional hazards model when the exposure estimates of Crump and Allen or of Paustenbach et al. were used to derive a cumulative concentration-by-time metric.