gebhart/patrepeval huggingface dataset:
Bioactive Alkaloids from the Tropical Marine Sponge Axinella carteri (1995)

Analysis of the tropical marine sponge Axinella carteri afforded six unusual alkaloids, including the new brominated guanidine derivative 3-bromo-hymenialdisine. The structure elucidation of the new alkaloid is described. The alkaloid patterns of sponges collected in Indonesia or in the Philippines were shown to be qualitatively identical suggesting de novo synthesis by the sponge or by endosymbiontic microorganisms rather than uptake by filter feeding. All alkaloids were screened for insecticidal activity as well as for cytotoxicity. The guanidine alkaloids hymenialdisine and debromohymenialdisine exhibited insecticidal activity towards neonate larvae of the polyphagous pest insect Spodoptera littoralis (LD50s of 88 and 125 ppm, respectively), when incorporated into artificial diet and offered to the larvae in a chronic feeding bioassay. The remaining alkaloids, including the new compound were inactive in this bioassay. Cytotoxicity was studied in vitro using L5178y mouse lymphoma cells. Debromohymenialdisine was again the most active compound (ED50 1.8 micrograms/ml) followed by hymenialdisine and 3-bromohymenialdisine, which were essentially equitoxic and exhibited ED50s of 3.9 micrograms/ml in both cases. The remaining alkaloids were inactive against this cell line.
A new medium access protocol for RFID networks with foresight (2011)

In the world where automating jobs is becoming a norm it is no surprise that the interest in RFID networks has grown exponentially. With RFID technology companies around the world can reduce their workforce and grow their business. However, this technology is not at that maturity point yet. In order for a cart full of groceries to go through an unmanned checkout lane, it is crucial that all of the tagged items are read and processed with 100% reliability. Also the process time needs to be short so that customers complete their purchases as fast as possible. In order to achieve time and reliability, several transmission control protocols have been devised. Out of these, the transmission control protocol that is most popular with RFID equipment manufacturers is EPCglobal's Class 1 Gen2. The transmission control in EPC C1G2 is achieved by framed slotted ALOHA where tags pick a random slot from the choices given by the reader and when their turn comes, they backscatter their information. This can lead to many empty slots and many collision slots apart from the successful slot. The time spent on these non-successful slots is studied in [4] and in this paper we extended the concept provided in [4] and propose a new method that scans for the empty and collided slots before attempting to read tags.
Soil-Transmitted Helminthiasis in Laos: A Community-Wide Cross-Sectional Study of Humans and Dogs in a Mass Drug Administration Environment (2012)

We conducted a community cross-sectional survey of soil-transmitted helminthiasis in humans and dogs in four provinces in northern Laos. We collected and tested human and dog fecal samples and analyzed results against sociodemographic data. The prevalence of Ascaris lumbricoides, Trichuris trichiura, hookworm, and Strongyloides stercoralis was 26.1% (95% confidence interval [CI] = 23.7-28.4%), 41.5% (95% CI = 38.8-44.1%), 46.3% (95% CI = 43.3-49.0%), and 8.9% (95% CI = 7.4-10.4%), respectively. We observed strong heterogeneity for helminthiasis by ethnicity, province, and wealth status, which coincided with a risk profile demonstrating that Mon-Khmer persons and the poorest households are highly vulnerable. Necator americanus was the dominant hookworm species infecting humans and Ancylostoma ceylanicum was the only Ancylostoma species detected. Hookworm prevalence in village dogs was 94%, and the dominant species was A. ceylanicum. Necator americanus was also detected in dogs. It appears that dogs have a role in human hookworm transmission and warrant further investigation.
Compact reconfigurable ceramic filter based on combline type 3-D resonators (2014)

In this paper compact ceramic filters, based on the principle of combline filters, are proposed. These filters offer a very good tradeoff between size and performances while offering a wide spurious free region. Two different filters are proposed here: a fixed frequency (X-band) and a tunable 5 pole Chebyshev. The expected frequency coverage is close to 56% f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> .
Dynamics of signature propagation (1996)

This paper discusses the dynamics of signature propagation associated with imaging and lidar operation through a realistic turbulent atmosphere in the vicinity of chemical plumes. Traditional phase screen models represent the propagation through artificial turbulence without dynamic compatibility. In contrast, three new models, AIRFLOS, CHAFFSIM, and SIMLIGHT have been developed to provide a first principles physics approach to modeling signature propagation through a dynamically consistent atmosphere. Solving the Navier Stokes equations the AIRFLOS model computes the turbulence and index of refraction over complex terrain and structures as a function of space and time, CHAFFSIM computes the chemical concentration motion, and SIMLIGHT models the electromagnetic energy propagation. Together these models allow simulation of imaging systems and lidar propagation through a realistic atmospheric environment. Included also is the ability to capture the dynamics of signature variability through environmental heating and cooling.
Alkylidenation of ester carbonyl groups by means of a reagent derived from RCHBr2, Zn, TiCl4, and TMEDA. Stereoselective preparation of (Z)-alkenyl ethers (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlkylidenation of ester carbonyl groups by means of a reagent derived from RCHBr2, Zn, TiCl4, and TMEDA. Stereoselective preparation of (Z)-alkenyl ethersTakashi Okazoe, Kazuhiko Takai, Koichiro Oshima, and Kiitiro UtimotoCite this: J. Org. Chem. 1987, 52, 19, 4410–4412Publication Date (Print):September 1, 1987Publication History Published online1 May 2002Published inissue 1 September 1987https://doi.org/10.1021/jo00228a055RIGHTS & PERMISSIONSArticle Views2260Altmetric-Citations125LEARN 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 InReddit PDF (427 KB) Get e-Alertsclose Get e-Alerts
An Anycast Prefix for 6to4 Relay Routers (2001)

This memo introduces a anycast in order to simplify the configuration of 6to4 routers. It also defines how this address will be used by 6to4 relay routers, how the corresponding anycast prefix will be advertised in the IGP and in the EGP. The memo documents the reservation by IANA (Internet Assigned Numbers Authority) of the relay anycast prefix.
Exercises for Chronic Low Back Pain: A Clinical Trial (1995)

Different training models are effective for the treatment of chronic low back pain, but no consensus has been found. Earlier studies have emphasized training of spinal mobility and back strength. To evaluate if other physiological parameters, such as coordination, are of equal importance, we performed a randomized trial on 40 consecutive patients with chronic low back pain. Two training models were compared: 1) intensive training of muscle endurance and 2) muscle training, including coordination. In both groups, training was performed 1 hour twice a week for 3 months. Pain score, disability score, and spinal mobility improved in both training groups without differences between the two groups. Only intensive training of muscle endurance improved isokinetic back muscle strength. At study entry, we found a significant correlation between spinal mobility and dysfunction, but after the training, no correlation was found between improvement of spinal mobility or isokinetic back extension strength and improvement of function or pain level. We conclude that coordination training for patients with chronic low back pain is as equally effective as endurance training.
Sewage Grid: Drifting Sensors that Monitor the Wastewater Collection System (2008)

Over the past decades, the aging infrastructure of wastewater collection system (WCS) has endangered the public health by contaminating the sources of drinking water and by polluting the natural environment. The dangers caused by discharging untreated wastewater have been repeatedly proclaimed by academia, industries, and public sectors. As numerous studies have pointed out, wastewater escaped from the wastewater collection system (WCS) has been a major source of impairment of water quality. In order to identify untreated wastewater escaping from WCS, various schemes have been designed and developed. However, only a small fraction of the WCS is inspected each year due to the cost and complications associated with the current inspection techniques. In an effort to solve this environmental problem, we designed and developed a new methodology for detecting functional deficiencies in WCS. The new methodology, which is utilizing the wireless floating sensors as well as interdisciplinary researches, is not only by far simpler than any current industry methods, but also significantly more efficient. Moreover, this is the first known WCS monitoring methodology utilizing a wireless mobile sensing system.
A novel type induction-heating single-ended resonant inverter using new bipolar Darlington-Transistor (1985)

Demonstrated is a novel type of single-ended resonant inverter using a new Bipolar Darlington-Transistor that operates efficiently in the frequency range of 20kHz to about 50kHz. The inverter implementation for an induction-heating range includes a unique power control strategy. The analysis and performance evaluations for circuit design are carried out herein.
The Effect of Different Suturing Techniques on Astigmatism after Penetrating Keratoplasty (2008)

The purpose of this study was to compare the effects on astigmatism after penetrating keratoplasty with three different suture techniques. In this prospective study, 38 eyes of 38 patients underwent penetrating keratoplasty with three suturing techniques: interrupted, single running, and double running. Topographic astigmatism was measured at 2, 6, 12, and 18 months after keratoplasty. During 18 months after surgery, the interrupted suture group had higher astigmatism than the double running suture group. There was no significant difference in the amounts of astigmatism during the first year after keratoplasty between the single running and the double running suture group. However, at 18 months after surgery, when all sutures were out, the double running suture group (3.60+/-1.58 diopters) showed significantly less astigmatism than the single running group (5.65+/-1.61 diopters). In conclusion, post-keratoplasty astigmatism was the least in the double running suture group of the three suturing techniques at 18 months after penetrating keratoplasty.
Deleterious Effect of RAS and Evolutionary High-risk TP53 Double Mutation in Colorectal Liver Metastases (2017)

Concomitant RAS and TP53 mutations are associated with decreased survival after CLM resection. A high EAp53 predicts a subset of patients with worse prognosis. These preliminary analyses suggest that surgical resection of liver metastases should be carefully considered in this subset of patients.
Chandra X-Ray Detection of the Radio Hotspots of 3C295 (1999)

An observation of the radio galaxy 3C295 during the calibration phase of the Chandra X-ray Observatory reveals X-ray emission from the core of the galaxy, from each of the two prominent radio hotspots, and from the previously known cluster gas. We discuss the possible emission processes for the hotspots and argue that a synchrotron self-Compton model is preferred for most or all of the observed X-ray emission. SSC models with near equipartition fields thus explain the X-ray emission from the hotspots in the two highest surface brightness FRII radio galaxies, Cygnus A and 3C295. This lends weight to the assumption of equipartition and suggests that relativistic protons do not dominate the particle energy density.
Fast and Localized Event-Related Optical Signals (EROS) in the Human Occipital Cortex: Comparisons with the Visual Evoked Potential and fMRI (1997)

Localized evoked activity of the human cortex produces fast changes in optical properties that can be detected noninvasively (event-related optical signal, or EROS). In the present study a fast EROS response (latency approximately 100 ms) elicited in the occipital cortex by visual stimuli showed spatial congruence with fMRI signals and temporal correspondence with VEPs, thus combining subcentimeter spatial localization with subsecond temporal resolution. fMRI signals were recorded from striate and extrastriate cortex. Both areas showed EROS peaks, but at different latencies after stimulation (100 and 200-300 ms, respectively). These results suggest that EROS manifests localized neuronal activity associated with information processing. The temporal resolution and spatial localization of this signal make it a promising tool for studying the time course of activity in localized brain areas and for bridging the gap between electrical and hemodynamic imaging methods.
Factors affecting progression of knee cartilage defects in normal subjects over 2 years (2005)

Although knee cartilage defects progressed over time in the majority of normal subjects, those of the highest severity tended to regress. Male gender and baseline cartilage defect score were the main factors associated with the progression of cartilage defects. Larger studies will be required to identify factors associated with the progression and regression of lesions.
Type II Error in the Spine Surgical Literature (2004)

The spine surgical literature is plagued with a high potential for type II error. A trial's methodology should be scrutinized to prevent misinterpretation of the results.
Experimental evaluation of the effectiveness of vibration protection of the wire rope coupling of the diesel generator set DGA-8.83 (2021)

The object of experimental research is a prototype of the patented wire rope coupling (KSM) “MAMSAR+A” as a drive of the diesel-generator unit DGA-8.83 with a power of 9.56 kW with the rotating speed of 1500 min–1 with a diesel 2CH 8.5/11 and a generator “KG-5.6”. Based on the purpose of the experimental study, the average coefficient of efficiency of vibration isolation of KSM is from 3 to 8 dB.
Some Special Photographic Effects Used in Motion-Picture Production (1955)

This paper describes four types of special photographic effects used in motion-picture production: (a) the matte shot combines live action and a painting into one scene; (b) the composite matte shot employs the matte shot plus the combination of two or more action scenes; (c) the glass shot is a method of photographing the live action and the painting simultaneously; (d) the traveling matte shot combines foreground action, which has been photographed against a monochromatic backing, with any desired background.
Estimating Average Growth Trajectories in Shape-Space using Kernel Smoothing (2002)

Abstract — We show how a dense surface point distribution model of the human face can be computed and demonstrate the usefulness of the high-dimensional shape-space for expressing the shape changes associated with growth and aging. We show how average growth trajectories for the human face can be computed in the absence of longitudinal data by using kernel smoothing across a population. A training set of 3D surface scans of 199 male and 201 female subjects with ages between 0 and 50 is used to build the model. Index Terms — medical image registration, facial growth, de-formable models, morphometrics I.
MCQ paper two (2008)

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Monochromosomal rodent-human hybrids from microcell fusion of human lymphoblastoid cells containing an inserted dominant selectable marker (1990)

An improved system for the production of a series of rodent-human hybrids selectively retaining single human chromosomes marked in known locations is described. Such hybrids have significant applications in gene mapping and other genetic studies. Human lymphoblastoid lines were infected with the retroviral vector SP-1, which contains the bacterial his-D gene allowing mammalian cells to grow in the presence of histidinol. Microcell fusion of the infected lymphoblastoid cells with CHO cells was used to produce hybrids containing single human chromosomes retained by histidinol selection. Hybrids containing a single human chromosome 9 and a single human chromosome 19 are described. These have been characterized cytogenetically by G-banding, in situ hybridization, and Southern blot analysis.
Human embryonic stem cell cultivation: historical perspective and evolution of xeno-free culture systems (2015)

Human embryonic stem cells (hESC) have emerged as attractive candidates for cell-based therapies that are capable of restoring lost cell and tissue function. These unique cells are able to self-renew indefinitely and have the capacity to differentiate in to all three germ layers (ectoderm, endoderm and mesoderm). Harnessing the power of these pluripotent stem cells could potentially offer new therapeutic treatment options for a variety of medical conditions. Since the initial derivation of hESC lines in 1998, tremendous headway has been made in better understanding stem cell biology and culture requirements for maintenance of pluripotency. The approval of the first clinical trials of hESC cells for treatment of spinal cord injury and macular degeneration in 2010 marked the beginning of a new era in regenerative medicine. Yet it was clearly recognized that the clinical utility of hESC transplantation was still limited by several challenges. One of the most immediate issues has been the exposure of stem cells to animal pathogens, during hESC derivation and during in vitro propagation. Initial culture protocols used co-culture with inactivated mouse fibroblast feeder (MEF) or human feeder layers with fetal bovine serum or alternatively serum replacement proteins to support stem cell proliferation. Most hESC lines currently in use have been exposed to animal products, thus carrying the risk of xeno-transmitted infections and immune reaction. This mini review provides a historic perspective on human embryonic stem cell culture and the evolution of new culture models. We highlight the challenges and advances being made towards the development of xeno-free culture systems suitable for therapeutic applications.
Network-based prediction of metabolic enzymes' subcellular localization (2009)

This study presents a novel constraint-based method for predicting subcellular localization of enzymes based on their embedding metabolic network, relying on a parsimony principle of a minimal number of cross-membrane metabolite transporters. In a cross-validation test of predicting known subcellular localization of yeast enzymes, the method is shown to be markedly robust, providing accurate localization predictions even when only 20% of the known enzyme localizations are given as input. It is shown to outperform pathway enrichment-based methods both in terms of prediction accuracy and in its ability to predict the subcellular localization of entire metabolic pathways when no a-priori pathway-specific localization data is available (and hence enrichment methods are bound to fail). With the number of available metabolic networks already reaching more than 600 and growing fast, the new method may significantly contribute to the identification of enzyme localizations in many different organisms.
Face Perception (2009)

43.1 Specialized Mechanisms for Face Perception: Evidence from Neuropsychology, Behavior, Electrophysiology, and Neuroimaging 43.2 The Nature of the Face Representations in the Fusiform Face Area 43.3 Function of the Face-Selective Occipital Face Area 43.4 Function of the Face-Selective Region in the Superior Temporal Sulcus 43.5 Origins of Face Processing 43.6 Summary
Effects of Regioregularity and Molecular Weight on the Growth of Polythiophene Nanofibrils and Mixes of Short and Long Nanofibrils To Enhance the Hole Transport (2015)

Morphological control over polythiophenes has been widely studied; however the impacts of regioregularity (RR) and molecular weight (MW) on their structural development have not been investigated systematically. This study examined a representative polythiophene, poly(3-hexylthiophene) (P3HT), to reveal that small differences in the RR can produce a large difference in the growth of nanofibrils. Low-RR P3HTs generated neat long nanofibrils (LNFs), whereas high-RR P3HTs formed short nanofibrils (SNFs). This study identified a critical RR (96-98%) depending on their MW, below which P3HT grew into LNFs and above which P3HT grew into SNFs. This study also found that the mixing ratio between high-RR P3HT and a low-RR P3HT in the solution phase is strongly correlated with the relative populations of SNF and LNF in the coated film. This study suggested that mixing high-RR and low-RR polymers may be a good strategy to optimize the electrical properties of polythiophenes for target applications. As an example, a mixture of high-RR (75%) P3HT and low-RR P3HT (25%) improved considerably the power conversion efficiency of bulk heterojunction polymer solar cells compared with the values obtained from the pure high-RR P3HT and the pure low-RR P3HT.