gebhart/patrepeval huggingface dataset:
Social network analysis for routing in disconnected delay-tolerant MANETs (2007)

Message delivery in sparse Mobile Ad hoc Networks (MANETs) is difficult due to the fact that the network graph is rarely (if ever) connected. A key challenge is to find a route that can provide good delivery performance and low end-to-end delay in a disconnected network graph where nodes may move freely. This paper presents a multidisciplinary solution based on the consideration of the so-called small world dynamics which have been proposed for economy and social studies and have recently revealed to be a successful approach to be exploited for characterising information propagation in wireless networks. To this purpose, some bridge nodes are identified based on their centrality characteristics, i.e., on their capability to broker information exchange among otherwise disconnected nodes. Due to the complexity of the centrality metrics in populated networks the concept of ego networks is exploited where nodes are not required to exchange information about the entire network topology, but only locally available information is considered. Then SimBet Routing is proposed which exploits the exchange of pre-estimated "betweenness' centrality metrics and locally determined social "similarity' to the destination node. We present simulations using real trace data to demonstrate that SimBet Routing results in delivery performance close to Epidemic Routing but with significantly reduced overhead. Additionally, we show that SimBet Routing outperforms PRoPHET Routing, particularly when the sending and receiving nodes have low connectivity.
PROSTATE‐SPECIFIC ANTIGEN AND PROSTATE CANCER (2000)

SUMMARY Serum prostate‐specific antigen (PSA) measurement is used to investigate patients with lower urinary tract symptoms and to screen for prostatic malignancy in symptom‐free males over 50 years of age. Approximately 60% of patients with early (prostate‐confined) occult malignancy show increased serum PSA levels, as do some 20% of patients with prostatic symptoms from benign prostatic disease. When PSA is only slightly raised, serial PSA measurements, correction for prostatic volume and especially measurement of free (unbound) PSA (which is reduced in prostatic malignancy) may assist the differentiation of prostatic cancer from benign hypertrophy. Serial measurements are also of value for monitoring treatment of prostate cancer and for post‐treatment surveillance.
Unsupervised Feature Selection for Relation Extraction (2005)

This paper presents an unsupervised relation extraction algorithm, which induces relations between entity pairs by grouping them into a “natural” number of clusters based on the similarity of their contexts. Stability-based criterion is used to automatically estimate the number of clusters. For removing noisy feature words in clustering procedure, feature selection is conducted by optimizing a trace based criterion subject to some constraint in an unsupervised manner. After relation clustering procedure, we employ a discriminative category matching (DCM) to find typical and discriminative words to represent different relations. Experimental results show the effectiveness of our algorithm.
Viscous instabilities in trailing vortices at large swirl numbers (2004)

This paper deals with the temporal stability of the $q$ -vortex trailing line vortex model. We describe a family of viscous instabilities existing in a range of parameters which is usually assumed to be stable, namely large swirl parameters ( $q\,{&gt;}\,1.5$ ) and large Reynolds numbers. These instabilities affect negative azimuthal wavenumbers ( $m\,{&lt;}\,0$ ) and take the form of centre-modes (i.e. with a structure concentrated along the vortex centreline). They are related to a family of viscous modes described by Stewartson, Ng &amp; Brown (1988) in swirling Poiseuille flow, and are the temporal counterparts of weakly amplified spatial modes recently computed by Olendraru &amp; Sellier (2002). These instabilities are studied numerically using an original and highly accurate Chebyshev collocation method, which allows a mapping of the unstable regions up to $\hbox{\it Re}\,{\approx}\,10^6$ and $q\,{\approx}\,7$ . Our results indicate that in the limit of very large Reynolds numbers, trailing vortices are affected by this kind of instability whatever the value of the swirl number.
ChemInform Abstract: Carbon Dioxide and Metal Centres: From Reactions Inspired by Nature to Reactions in Compressed Carbon Dioxide as Solvent (2010)

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Improving Temporal Stability and Accuracy for Endoscopic Video Tissue Classification Using Recurrent Neural Networks (2020)

Early Barrett's neoplasia are often missed due to subtle visual features and inexperience of the non-expert endoscopist with such lesions. While promising results have been reported on the automated detection of this type of early cancer in still endoscopic images, video-based detection using the temporal domain is still open. The temporally stable nature of video data in endoscopic examinations enables to develop a framework that can diagnose the imaged tissue class over time, thereby yielding a more robust and improved model for spatial predictions. We show that the introduction of Recurrent Neural Network nodes offers a more stable and accurate model for tissue classification, compared to classification on individual images. We have developed a customized Resnet18 feature extractor with four types of classifiers: Fully Connected (FC), Fully Connected with an averaging filter (FC Avg(n = 5)), Long Short Term Memory (LSTM) and a Gated Recurrent Unit (GRU). Experimental results are based on 82 pullback videos of the esophagus with 46 high-grade dysplasia patients. Our results demonstrate that the LSTM classifier outperforms the FC, FC Avg(n = 5) and GRU classifier with an average accuracy of 85.9% compared to 82.2%, 83.0% and 85.6%, respectively. The benefit of our novel implementation for endoscopic tissue classification is the inclusion of spatio-temporal information for improved and robust decision making, and it is the first step towards full temporal learning of esophageal cancer detection in endoscopic video.
Faculty Opinions recommendation of Reduced cytosolic protein synthesis suppresses mitochondrial degeneration. (2008)

Mitochondrial function degenerates during aging and in aging-related neuromuscular degenerative diseases, which leads to the physiological decline of the cell 1 . Factors that can delay the degenerative process are actively sought after. Here, we show that reduced cytosolic protein synthesis is a robust cellular strategy that suppresses aging-related mitochondrial degeneration. We modelled the adultor later-onset degenerative disease, autosomal dominant Progressive External Ophthalmoplegia (adPEO), by introducing the A128P mutation into the yeast adenine nucleotide translocase, Aac2p. The aac2 A128P allele dominantly induces aging-dependent mitochondrial degeneration and phenotypically tractable degenerative cell death independent of its ADP/ATP exchange activity. Mitochondrial degeneration is suppressed by lifespan-extending nutritional interventions and by 8 longevity mutations, which are all known to reduce cytosolic protein synthesis. These longevity interventions also independently suppress aging-related mitochondrial degeneration in the pro-aging prohibitin mutants. The aac2 A128P mutant has reduced mitochondrial membrane potential ( m ) and is synthetically lethal to low m conditions, including the loss of prohibitin. Mitochondrial degeneration is accelerated by defects in protein turnover on the inner membrane and is suppressed by cycloheximide, a specific inhibitor of cytosolic ribosomes. Reduced cytosolic protein synthesis suppresses membrane depolarization and defects in mitochondrial gene expression in aac2 A128P cells. Our finding thus provides a link between protein homeostasis (proteostasis), cellular bioenergetics and mitochondrial maintenance during aging.
Robust Perfect Revenue From Perfectly Informed Players (2010)

Bisphosphonates have been associated with a serious adverse reaction known as bisphosphonate-related osteonecrosis of the jaws (BRONJ). The aim of this study was to describe its clinical characteristics in patients with dental implants who were taking bisphosphonates orally. We made a retrospective multicentre study in 3 hospitals in Galicia, Spain. The medical records and clinical and radiological follow-up of the oral cavity were reviewed for those patients given bisphosphonates and diagnosed with BRONJ after the placement of dental implants within the previous 3 years. The series comprised 9 white patients (mean age 66 years). The bisphosphonates were alendronate (n=6), ibandronate (n=2), and risedronate (n=1), and the most common indication was osteoporosis (n=7). The mean interval between the initiation of treatment and the onset of BRONJ lesions was 60 months. Most of the lesions were located around the mandibular implants (n=8). The mean interval between placement of dental implants and the onset of BRONJ was 34 (range 1-96) months. After treatment 7/9 patients recovered completely. The prevalence of BRONJ secondary to treatment with bisphosphonates taken orally after placement of dental implants may be higher than expected in a particular geographical region, but to date specific risk factors have not been identified. Clinical characteristics and the outcomes of treatment of lesions are similar to those seen in patients with BRONJ that is unrelated to placement of dental implants.
Mechanical responses of rat vibrissae to airflow (2016)

The survival of many animals depends in part on their ability to sense the flow of the surrounding fluid medium. To date, however, little is known about how terrestrial mammals sense airflow direction or speed. The present work analyzes the mechanical response of isolated rat macrovibrissae (whiskers) to airflow to assess their viability as flow sensors. Results show that the whisker bends primarily in the direction of airflow and vibrates around a new average position at frequencies related to its resonant modes. The bending direction is not affected by airflow speed or by geometric properties of the whisker. In contrast, the bending magnitude increases strongly with airflow speed and with the ratio of the whisker's arc length to base diameter. To a much smaller degree, the bending magnitude also varies with the orientation of the whisker's intrinsic curvature relative to the direction of airflow. These results are used to predict the mechanical responses of vibrissae to airflow across the entire array, and to show that the rat could actively adjust the airflow data that the vibrissae acquire by changing the orientation of its whiskers. We suggest that, like the whiskers of pinnipeds, the macrovibrissae of terrestrial mammals are multimodal sensors - able to sense both airflow and touch - and that they may play a particularly important role in anemotaxis.
The role of lateral cephalometric radiography and fluoroscopy in assessing mandibular advancement in sleep-related disorders (1998)

Mandibular advancement splints are successful in managing obstructive sleep apnoea (OSA) in selected subjects. For these to be effective, some improvement in the dimensions of the oropharyngeal airway must occur. Twenty subjects with proven obstructive sleep apnoea were examined using lateral cephalometric radiography and a fluoroscopic technique. Cephalograms were analysed, and assessed for both skeletal and soft tissue abnormalities known to be present in OSA subjects. On the basis of these, a prediction was made as to whether the subject's oropharyngeal airway would increase during mandibular protrusion. From the fluoroscopic sequences, the narrowest antero-posterior dimensions of the post-palatal and post-lingual airways were recorded as the mandible moved from the intercuspal position into maximal protrusion. The changes in airway size were noted and these were compared with the predictions made from the static films. In nine subjects, fluoroscopy indicated that the airway opened well during mandibular protrusion, seven did not improve and in four the changes were minimal. Post-palatally the mean airway increase was 2.6 mm, whilst behind the tongue a mean improvement of 3.1 mm was seen. In all but two instances, the cephalometric prediction agreed exactly with the outcome demonstrated by fluoroscopy. All subjects whose airways clearly increased were correctly identified by the cephalogram alone. Cephalometric features associated with a good airway response to protrusion were a reduced lower facial height, low maxillomandibular planes angle and a high hyoid position, accompanied by a normal anteroposterior relationship of the jaws, relatively normal mandibular body length and soft palate area. The more abnormal the skeletal and soft tissue dimensions, the poorer the prognosis. Thus, whilst a single radiograph could indicate whether a positive mandibular response to protrusion could be expected, where doubt existed, a fluoroscopic analysis could provide a useful adjunct to diagnosis.
AID Enzyme-Induced Hypermutation in an Actively Transcribed Gene in Fibroblasts (2002)

Activation-induced cytidine deaminase (AID), a putative RNA-editing enzyme, is indispensable for somatic hypermutation (SHM), class switch recombination, and gene conversion of immunoglobulin genes, which indicates a common molecular mechanism for these phenomena. Here we show that ectopic expression of AID alone can induce hypermutation in an artificial GFP substrate in NIH 3T3 murine fibroblast cells. The frequency of mutations was closely correlated with the level of transcription of the target gene, and the distribution of mutations in NIH 3T3 cells was similar to those of SHM in B lymphocytes. These results indicate that AID is sufficient for the generation of SHM in an actively transcribed gene in fibroblasts, as well as B cells, and that any of the required cofactors must be present in these fibroblasts.
Model for Some Nonthermal Effects of Radio and Microwave Fields on Biological Membranes (1977)

A model is presented for mechanisms by which non-thermal effects could take place in biological materials as a result of microwave, radio-frequency fields. Both shifts in ion concentrations across a membrane and the orientation of long chain molecules are shown to be possible.
First-line gefitinib for elderly patients with advanced NSCLC harboring EGFR mutations. A combined analysis of North-East Japan Study Group studies (2015)

First-line gefitinib is efficacious with acceptable toxicity in relatively fit elderly patients with advanced NSCLC harboring an EGFR mutation.
Energy Transition Planning with High Penetration of Variable Renewable Energy in Developing Countries: The Case of the Bolivian Interconnected Power System (2022)

The transition to a more environmentally friendly energy matrix by reducing fossil fuel usage has become one of the most important goals to control climate change. Variable renewable energy sources (VRES) are a central low-carbon alternative. Nevertheless, their variability and low predictability can negatively affect the operation of power systems. On this issue, energy-system-modeling tools have played a fundamental role. When exploring the behavior of the power system against different levels of VRES penetration through them, it is possible to determine certain operational and planning strategies to balance the variations, reduce the operational uncertainty, and increase the supply reliability. In many developing countries, the lack of such proper tools accounting for these effects hinders the deployment potential of VRES. This paper presents a particular energy system model focused on the case of Bolivia. The model manages a database gathered with the relevant parameters of the Bolivian power system currently in operation and those in a portfolio scheduled until 2025. From this database, what-if scenarios are constructed allowing us to expose the Bolivian power system to a set of alternatives regarding VRES penetration and Hydro storage for that same year. The scope is to quantify the VRES integration potential and therefore the capacity of the country to leapfrog to a cleaner and more cost-effective energy system. To that aim, the unit-commitment and dispatch optimization problem are tackled through a Mixed Integer Linear Program (MILP) that solves the cost objective function within its constraints through the branch-and-cut method for each scenario. The results are evaluated and compared in terms of energy balancing, transmission grid capability, curtailment, thermal generation displacement, hydro storage contribution, and energy generation cost. In the results, it was found that the proposed system can reduce the average electricity cost down to 0.22 EUR/MWh and also reduce up to 2.22 × 106 t (96%) of the CO2 emissions by 2025 with very high penetration of VRES but at the expense of significant amount of curtailment. This is achieved by increasing the VRES installed capacity to 10,142 MW. As a consequence, up to 7.07 TWh (97%) of thermal generation is displaced with up to 8.84 TWh (75%) of load covered by VRES.
The choice of atypical employment by Chinese enterprises: status and determination (2014)

Labor employment has been changing with the reform of the economic system. As a flexible and elastic mode of employment, atypical employment has been widely used all over the world. Based on the data from the World Bank surveying 12,400 Chinese enterprises in 2005, we find that atypical employees have a big gap with typical employees in wages and benefits but higher mobility. By exploring the causes of enterprises hiring atypical employees, we find that labor cost, overtime, labor supply, and the form of corporate ownership all have an influence on the option of corporate employment.
A review of liquid crystal display technologies, electronic interconnection and failure analysis (2008)

Purpose The purpose of this paper is to discuss the chemistry of organic compounds with a liquid crystal phase and their application in flat panel electronic displays. Design/methodology/approach The paper is a review of liquid crystal display (LCD) technology. It provides an introduction to liquid crystals and LCDs, with an emphasis on their historical development, various LCD technologies employed, their electronic interconnection to driver circuitry and failure analysis. Findings The current world market for LCDs is being driven by flat panel television sales. As well as their use in television sets, they are to be found in aircraft cockpit instrumentation, computer monitors, mobile phones and digital cameras, all of which would not exist in their present form without liquid crystals. Originality/value The paper provides an introduction to LCDs for electronic engineers working in this area, who may be unfamiliar with the chemistry of liquid crystals, LCD technology, electronic interconnection and failure analysis.
Multimodal interaction in an augmented reality scenario (2004)

We describe an augmented reality system designed for online acquisition of visual knowledge and retrieval of memorized objects. The system relies on a head mounted camera and display, which allow the user to view the environment together with overlaid augmentations by the system. In this setup, communication by hand gestures and speech is mandatory as common input devices like mouse and keyboard are not available. Using gesture and speech, basically three types of tasks must be handled: (i) Communication with the system about the environment, in particular, directing attention towards objects and commanding the memorization of sample views; (ii) control of system operation, e.g. switching between display modes; and (iii) re-adaptation of the interface itself in case communication becomes unreliable due to changes in external factors, such as illumination conditions. We present an architecture to manage these tasks and describe and evaluate several of its key elements, including modules for pointing gesture recognition, menu control based on gesture and speech, and control strategies to cope with situations when vision becomes unreliable and has to be re-adapted by speech.
Predicting Visual Focus of Attention From Intention in Remote Collaborative Tasks (2008)

While shared visual space plays a very important role in remote collaboration on physical tasks, it is challenging and expensive to track users' focus of attention (FOA) during these tasks. In this paper, we propose to identify a user's FOA from his/her intention based on task properties, people's actions in the workspace, and conversational content. We employ a conditional Markov model to characterize a subject's FOA. We demonstrate the feasibility of the proposed method using a collaborative laboratory task in which one partner (the helper) instructs another (the worker) on how to assemble online puzzles. We model a helper's FOA using task properties, workers' actions, and conversational content. The accuracy of the model ranged from 65.40% for puzzles with easy-to-name pieces to 74.25% for puzzles with more difficult-to-name pieces. The proposed model can be used to predicate a user's FOA in a remote collaborative task without tracking the user's eye gaze.
An Efficient Method for Enhanced Oil Production Providing an Increase in Oil Recovery Index (1998)

An Efficient Method for Enhanced Oil Production Providing an Increase in Oil Recovery Index V.M. Shaposhnikov; V.M. Shaposhnikov Search for other works by this author on: This Site Google Scholar L.B. Listengarten; L.B. Listengarten Search for other works by this author on: This Site Google Scholar S.D. Tseytlin; S.D. Tseytlin Search for other works by this author on: This Site Google Scholar L.M. Mendelevich L.M. Mendelevich Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Eastern Regional Meeting, Pittsburgh, Pennsylvania, November 1998. Paper Number: SPE-51097-MS https://doi.org/10.2118/51097-MS Published: November 09 1998 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Shaposhnikov, V.M., Listengarten, L.B., Tseytlin, S.D., and L.M. Mendelevich. "An Efficient Method for Enhanced Oil Production Providing an Increase in Oil Recovery Index." Paper presented at the SPE Eastern Regional Meeting, Pittsburgh, Pennsylvania, November 1998. doi: https://doi.org/10.2118/51097-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Eastern Regional Meeting Search Advanced Search V.M. Shaposhnikov, SPE, and L.B. Listengarten, and S.D. Tseytlin, SPE, and L.M. MendelevichAbstractPEn Technology was developed for high-GOR oil fields. The target was the optimization of well-formation system by means of maintenance of bottomhole pressure and supporting fluid lift. The technology applies an individual approach to each well, based on analysis of numerous parameters and data, computer simulation of well-formation system and sizing calculation for the technology's bottomhole tools.P. 371 Keywords: production monitoring, bopd, permeability, drillstem/well testing, pentechnology, efficient method, gor, water cut, enhanced oil production, installation Subjects: Well & Reservoir Surveillance and Monitoring, Formation Evaluation & Management, Drillstem/well testing This content is only available via PDF. 1998. Society of Petroleum Engineers You can access this article if you purchase or spend a download.