gebhart/patrepeval huggingface dataset:
Building an occupancy model from sensor networks in office environments (2011)

The work presented here aims to answer this question: Using just binary occupancy sensors is it possible to build a behaviour occupancy model over long-term logged data? Sensor measurements are grouped to form artificial words (activities) and documents (set of activities). The goal is to infer the latent topics which are assumed to be the common routines from the observed data. An unsupervised probabilistic model, namely the Latent Dirichlet Allocation (LDA), is applied to automatically discover the latent topics (routines) in the data. Experimental results using real logged data of 24 weeks from an office building, with different number of topics, are shown. The results show the power of the LDA model in extracting relevant patterns from sensor network data.
IDC Interference-Aware Resource Allocation for LTE/WLAN Heterogeneous Networks (2015)

When two radio technologies having adjacent bands operate simultaneously in the same device, the out-of-band (OOB) radiations of the transmitting radio leak on the band of the receiving radio due to the filters non-idealities. These OOB radiations are commonly referred to as in-device coexistence (IDC) interference. In this letter, we derive a new model for the IDC interference that captures the filtering characteristics of the transmitter spectrum mask and the receiver filter. Then, we propose a minimum power consumption radio resource allocation algorithm for LTE/WLAN networks that takes into account the mutual IDC interference between LTE and WLAN. Our simulation results show that the proposed algorithm achieves considerable power and data rate gains with respect to an algorithm that overlooks the IDC interference.
Structural and Acid/Base Properties of Supported Europium Oxides (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructural and Acid/Base Properties of Supported Europium OxidesJianyi Shen, M. J. Lochhead, K. L. Bray, Yi Chen, and J. A. DumesicCite this: J. Phys. Chem. 1995, 99, 8, 2384–2392Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 February 1995https://pubs.acs.org/doi/10.1021/j100008a022https://doi.org/10.1021/j100008a022research-articleACS PublicationsRequest reuse permissionsArticle Views355Altmetric-Citations35LEARN 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 options Get e-Alerts
Analyses Based on Analytical Solutions (2006)

No AccessPolymer ProcessingApr 2006Analyses Based on Analytical SolutionsTim A. Osswald, Juan P. Hernández-OrtizTim A. Osswald, Juan P. Hernández-Ortizhttps://doi.org/10.3139/9783446412866.006SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitterEmailLinkedIn previous chapternext chapter FiguresReferencesRelatedDetails 2006Pages: 247-340Print ISBN: 978-3-446-40381-9eISBN: 978-3-446-41286-6 Copyright & Permissions© 2006 Carl Hanser Verlag GmbH & Co. KGPDF downloadLoading ...
IoTData Privacy (2020)

This chapter introduces basic concepts related to Internet of Things (IoT) data privacy, and discusses the approaches to IoT data privacy. It then describes the Privacy Preference Manager (PPM), which is an IoT data platform component that can provide data privacy by registering users’ consent and privacy preferences, providing a way to modify or update them, providing rules for data flow according to users’ preferences, and recording all transactions. Next, the chapter discusses how the emergence of IoT is impacting data privacy, and describes some existing approaches to address both online- and IoT-related privacy. It further provides information on a generalized personal data handling architecture for IoT that fulfills the requirements identified along with a description of how this has been realized by the oneM2M IoT platform standard and in particular its PPM component.
Kidney stone treatment (2017)

Following the first large cohort of percutaneous nephrolithotomy (PCNL) reported by Alken in 1981, PCNL has subsequently become the preferred treatment method for large and/or complex renal and large proximal ureteral calculi. Current guidelines recommend PCNL as first-line therapy for all renal calculi ≥20 mm and for lower pole stones ≥15 mm. In this chapter we review the current indications, techniques, and outcomes of PCNL. Nowadays stone-free rates of approximately 70% overall can be achieved with PCNL, while at experienced high-volume centres, stone-free rates can approach 100%. While generally percutaneous nephrolithotomy has low morbidity, nonetheless significant complications can occur and the diagnosis, treatment, and preventative measures of these complications are presented in this chapter.
Low serum selenium concentrations are associated with poor grip strength among older women living in the community (2007)

Aging is associated with a loss of muscle strength, and, in turn, loss of muscle strength has been associated with increased risk of frailty, disability and mortality. The factors that contribute to loss of muscle strength with aging have not been well characterized. Selenium is important in normal muscle function because of its role in selenoenzymes that protect muscle against oxidative damage. We hypothesized that low serum selenium concentrations were associated with poor grip strength. We examined the association between serum selenium and hand grip strength among 676 moderately to severely disabled community-dwelling women in the Women's Health and Aging Study I in Baltimore, Maryland. After adjusting for age, race, body mass index, Mini-Mental Status Examination score, current smoking, hypertension, congestive heart failure and depression, serum selenium was associated with grip strength (P=0.04). This study supports the idea that selenium is important to muscle strength in older women.
IFT Reduction Negatively Impacts Oil Recovery When Wettability Alteration Happens (2023)

Abstract Interfacial tension (IFT) reduction and wettability alteration (WA) are the two most important mechanisms for chemical EOR. When two mechanisms are combined, however, the relative contribution of each mechanism is hard to determine. Researchers have obtained different, sometimes conflicting, conclusions. Numerical simulation studies usually suggest that, when WA happens, IFT should not be reduced. In this work, we investigated experimentally how IFT reduction impacts oil recovery when wettability alteration happens. To answer this question, this study tests the oil recovery potential of novel zwitterionic surfactants (ZS) and Gemini surfactants (GS) for oil-wet carbonate rock. A chelating agent was added to alter the properties of the surfactants to get comparable WA performance but different IFT. The surfactants used in this study were a zwitterionic surfactant Erucamidopropyl Sulfobetaine, and a locally synthesized amino-amine-based cationic Gemini surfactant. Diethylenetriamene pentaacetate (DTPA) chelating agent was used. Indiana limestone was selected to represent carbonate rocks. The spinning drop method was applied in IFT measurements. Static contact angle under room conditions and reservoir conditions was conducted to evaluate the WA performance of studied materials. Spontaneous imbibition tests were conducted using oil-aged limestone core plugs. By comparing the IFT reduction, WA, and oil recovery, the relative importance of the mechanism was reflected. Results show that investigated zwitterionic surfactant reduces IFT more than Gemini surfactant. However, Gemini surfactant showed much better WA performance than zwitterionic surfactant. When DTPA was added to zwitterionic surfactant, the wettability alteration performance of zwitterionic surfactant was improved. The mixture of DTPA and zwitterionic surfactant (DTPA/ZS) showed comparable wettability performance compared to DTPA and Gemini surfactant (DTPA/GS). However, the IFT value of DTPA/ZS is much lower compared to DTPA/GS. In spontaneous imbibition tests, the mixture of DTPA/ZS recovered oil much slower than the mixture of DTPA/GS. This shows that when wettability alteration happens, reducing IFT to the ultralow condition has a negative effect on oil recovery. This is because when wettability is altered to water-wet conditions, the capillary force becomes a driving force that helps oil production. Reducing IFT will reduce the magnitude of capillary force, thus negatively impacting the oil recovery rate. This study shows that for the spontaneous imbibition process in low permeability carbonate rock, IFT reduction negatively impacts the oil recovery when the rock wettability is altered from oil-wet to water-wet.
Graft-Matched Pregnancy Imparts Profound Epigenetic Changes onto Alloreactive Memory T Cells to Enforce a Phenotypic and Transcriptional State of Tolerance (2022)

Abstract Pregnancy is an immunological paradox, where the maternal immune system develops tolerance to a semi-allogeneic fetus, yet pregnancy is a major sensitizing event in clinical transplantation. We previously reported that pregnancy robustly tolerizes fetus-specific T cells, allowing for the spontaneous acceptance of fetus-matched allografts when B cells and alloantibodies are absent at the time of transplantation(1). In this study, we report that mice sensitized to 2WOVA.B/c allogeneic skin grafts (Memory) underwent successful pregnancies comparable to Naïve mice when mated with 2WOVA.B/c males. We utilized a high-dimensional multi-omics approach to characterize post-partum (PP) fetus-specific T cells from Naïve or Memory mice after semi-allogeneic pregnancies. Strikingly, pregnancy induced fetus-specific naïve and memory T cells to achieve a nearly identical phenotype, characterized by upregulation of co-inhibitory molecules FR4, CD73, PD1, and CTLA4 in CD4+FoxP3- Tconvs and upregulated PD-1, FR4 and Lag3 in CD8+ T cells. We confirmed that naïve and memory PP CD8+ T cells acquired similar transcriptional profiles via RNA-Seq; unexpectedly, pregnancy induced profound epigenetic modifications in memory, but not naïve, CD8+ T cells. In vitro studies indicated reduced TNF aproduction by memory PP CD4+ and CD8+ T cells, and experiments examining their response to fetus-matched allografts are ongoing. Our studies suggest that significant epigenetic imprinting is necessary to constrain memory T cells to preserve fetal viability during semi-allogeneic pregnancy. These findings may provide insights into controlling antigen-specific memory T cells, a major barrier to clinical transplant success
Missing the Mark: Is ICS Training Achieving Its Goal (2016)

The Incident Command System (ICS) was originally adopted in the 1970s as a fire service emergency management system. Following the events on September 11, 2001, the National Response Plan adopted ICS across all hazards and disciplines in order to unite responders under the same management system during emergencies. However, creating one system to service so many disparate agencies and response types was a massive undertaking, and the system's effectiveness has since been questioned. To operate in ICS, responders must engage in the adult learning process, which requires social interaction with an engaged instructor and active peers. Before the system can be judged properly, we must ensure personnel have been trained and are implementing the system adequately. This thesis examines the adult learning process and the keys to ensuring that learning and behavior change actually occur. It further examines ICS courses' current online delivery system and recommends evaluating this system to engage the social learning required for successful cultural change. The thesis also critiques the ICS training measurement method and recommends changes to better measure system learning and utilization.
Pseudomonas fluorescens NZI7 repels grazing by C. elegans , a natural predator (2013)

The bacteriovorous nematode Caenorhabditis elegans has been used to investigate many aspects of animal biology, including interactions with pathogenic bacteria. However, studies examining C. elegans interactions with bacteria isolated from environments in which it is found naturally are relatively scarce. C. elegans is frequently associated with cultivation of the edible mushroom Agaricus bisporus, and has been reported to increase the severity of bacterial blotch of mushrooms, a disease caused by bacteria from the Pseudomonas fluorescens complex. We observed that pseudomonads isolated from mushroom farms showed differential resistance to nematode predation. Under nutrient poor conditions, in which most pseudomonads were consumed, the mushroom pathogenic isolate P. fluorescens NZI7 was able to repel C. elegans without causing nematode death. A draft genome sequence of NZI7 showed it to be related to the biocontrol strain P. protegens Pf-5. To identify the genetic basis of nematode repellence in NZI7, we developed a grid-based screen for mutants that lacked the ability to repel C. elegans. The mutants isolated in this screen included strains with insertions in the global regulator GacS and in a previously undescribed GacS-regulated gene cluster, 'EDB' ('edible'). Our results suggest that the product of the EDB cluster is a poorly diffusible or cell-associated factor that acts together with other features of NZI7 to provide a novel mechanism to deter nematode grazing. As nematodes interact with NZI7 colonies before being repelled, the EDB factor may enable NZI7 to come into contact with and be disseminated by C. elegans without being subject to intensive predation.
Transcriptomics-based drug repositioning pipeline identifies therapeutic candidates for COVID-19 (2021)

The novel SARS-CoV-2 virus emerged in December 2019 and has few effective treatments. We applied a computational drug repositioning pipeline to SARS-CoV-2 differential gene expression signatures derived from publicly available data. We utilized three independent published studies to acquire or generate lists of differentially expressed genes between control and SARS-CoV-2-infected samples. Using a rank-based pattern matching strategy based on the Kolmogorov-Smirnov Statistic, the signatures were queried against drug profiles from Connectivity Map (CMap). We validated 16 of our top predicted hits in live SARS-CoV-2 antiviral assays in either Calu-3 or 293T-ACE2 cells. Validation experiments in human cell lines showed that 11 of the 16 compounds tested to date (including clofazimine, haloperidol and others) had measurable antiviral activity against SARS-CoV-2. These initial results are encouraging as we continue to work towards a further analysis of these predicted drugs as potential therapeutics for the treatment of COVID-19.
Hydrothermally altered deposits of 2014 Askja landslide, Iceland, identified by remote sensing imaging (2023)

Volcanic flanks subject to hydrothermal alteration become mechanically weak and gravitationally unstable, which may collapse and develop far-reaching landslides. The dynamics and trajectories of volcanic landslides are hardly preserved and challenging to determine, which is due to the steep slopes and the inherent instability. Here we analyze the proximal deposits of the 21 July 2014, landslide at Askja (Iceland), by combining high-resolution imagery from satellites and Unoccupied Aircraft Systems. We performed a Principal Component Analysis in combination with supervised classification to identify different material classes and altered rocks. We trained a maximum-likelihood classifier and were able to distinguish 7 different material classes and compare these to ground-based hyperspectral measurements that we conducted on different rock types found in the field. Results underline that the Northern part of the landslide source region is a hydrothermally altered material class, which bifurcates halfway downslope and then extends to the lake. We find that a large portion of this material is originating from a lava body at the landslide headwall, which is the persistent site of intense hydrothermal activity. By comparing the classification result to in-situ hyperspectral measurements, we were able to further identify the involved types of rocks and the degree of hydrothermal alteration. We further discuss associated effects of mechanical weakening and the relevance of the heterogeneous materials for the dynamics and processes of the landslide. As the study demonstrates the success of our approach for identification of altered and less altered materials, important implications for hazard assessment in the Askja caldera and elsewhere can be drawn.
Fine-Scale Turbulent Noise Predictions from Non-Axisymmetric Jets (2015)

In this work a model for fine-scale turbulent noise predictions from non-axisymmetric, heated and unheated jets is developed. This model, called GENO, improves upon the previous noise prediction methods JeNo and MGBK by including the effects of mean flow refraction from non-circular geometry, as well as a more complete model for the self, shear, and enthalpy noise sources. The Green's function for non-axisymmetric flows is determined by solving the Lilley-Goldstein equation in terms of coupled azimuthal modes. Additionally, the noise source model evaluates the fourth order velocity correlation tensor I ijkl for the general case and the relationship between non-zero components is found. This is combined with an empirical noise source model for heated jets. Acoustic results using GENO are shown for aspect ratio 2:1 and 4:1 rectangular jets, under unheated (SP7) and heated (SP46) conditions, and the comparisons agree favorably with experimental data.
Effects of Dapagliflozin on Heart Failure Hospitalizations According to Severity of Inpatient Course: Insights from DELIVER and DAPA-HF (2023)

ClinicalTrials.gov, DELIVER (NCT03619213) and DAPA-HF (NCT03036124).
Endotoxemia alters tight junction gene and protein expression in the kidney (2012)

Intact tight junctional (TJ) proteins are required for tubular ion transport and waste excretion. Disruption of TJs may contribute to a decreased glomerular filtration rate in acute kidney injury (AKI) via tubular backleak. The effect of LPS-mediated AKI on murine TJs has not been studied extensively. We hypothesized LPS endotoxin administration to mice would disrupt tubular TJ proteins including zonula occludens-1 (ZO-1), occludin, and claudins. ZO-1 and occludin immunofluorescence 24 h post-LPS revealed a marked change in localization from the usual circumferential fencework pattern to one with substantial fragmentation. Renal ZO-1 expression was significantly reduced 24 h after LPS (decrease of 56.1 ± 7.4%, P < 0.001), with subsequent recovery. ZO-1 mRNA expression was increased 24 h post-LPS (4.34 ± 0.87-fold, P = 0.0019), suggesting disruption of ZO-1 protein is not mediated by transcriptional regulation, but rather by degradation or changes in translation. Similarly, claudin-4 protein expression was decreased despite elevated mRNA. LPS administration resulted in dephosphorylation of occludin and fragmented tubular redistribution. Protein expression of claudin-1, and -3 was increased after LPS. ZO-1, occludin, and claudin-1, -3, and -4 gene expression were increased 48 h after LPS, suggesting a renal response to strengthen TJs following injury. Interestingly, reduced mRNA expression was found only for claudin-8. This study provides further support that LPS-induced AKI is associated with structural injury and is not merely due to hemodynamic changes.
LiveJack (2017)

Emerging commercial live content broadcasting platforms are facing great challenges to accommodate large scale dynamic viewer populations. Existing solutions constantly suffer from balancing the cost of deploying at the edge close to the viewers and the quality of content delivery. We propose LiveJack, a novel network service to allow CDN servers to seamlessly leverage ISP edge cloud resources. LiveJack can elastically scale the serving capacity of CDN servers by integrating Virtual Media Functions (VMF) in the edge cloud to accommodate flash crowds for very popular contents. LiveJack introduces minor application layer changes for streaming service providers and is completely transparent to end users. We have prototyped LiveJack in both LAN and WAN environments. Evaluations demonstrate that LiveJack can increase CDN server capacity by more than six times, and can effectively accommodate highly dynamic workloads with an improved service quality.
Neural origin of evoked potentials during thalamic deep brain stimulation (2013)

Closed-loop deep brain stimulation (DBS) systems could provide automatic adjustment of stimulation parameters and improve outcomes in the treatment of Parkinson's disease and essential tremor. The evoked compound action potential (ECAP), generated by activated neurons near the DBS electrode, may provide a suitable feedback control signal for closed-loop DBS. The objectives of this work were to characterize the ECAP across stimulation parameters and determine the neural elements contributing to the signal. We recorded ECAPs during thalamic DBS in anesthetized cats and conducted computer simulations to calculate the ECAP of a population of thalamic neurons. The experimental and computational ECAPs were similar in shape and had characteristics that were correlated across stimulation parameters (R(2) = 0.80-0.95, P < 0.002). The ECAP signal energy increased with larger DBS amplitudes (P < 0.0001) and pulse widths (P < 0.002), and the signal energy of secondary ECAP phases was larger at 10-Hz than at 100-Hz DBS (P < 0.002). The computational model indicated that these changes resulted from a greater extent of neural activation and an increased synchronization of postsynaptic thalamocortical activity, respectively. Administration of tetrodotoxin, lidocaine, or isoflurane abolished or reduced the magnitude of the experimental and computational ECAPs, glutamate receptor antagonists 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX) and D(-)-2-amino-5-phosphonopentanoic acid (APV) reduced secondary ECAP phases by decreasing postsynaptic excitation, and the GABAA receptor agonist muscimol increased the latency of the secondary phases by augmenting postsynaptic hyperpolarization. This study demonstrates that the ECAP provides information about the type and extent of neural activation generated during DBS, and the ECAP may serve as a feedback control signal for closed-loop DBS.
Modeling technique for DC to DC converters using Weinberg topology (2002)

In this paper, the authors present a simplified analysis and design of a DC-to-DC power converter unit (DDCU) using the improved Weinberg topology. The DDCU has the added complication that the turns ratio of the power transformer N/sub s//N/sub p/=m is different than the turns ratio of the inductor transformer N/sub LS//N/sub L/=n. The state-space averaging approach is used for modeling the reduced order Weinberg power converter. This model can be used to drive frequency domain, transient and steady state responses for current mode and voltage mode control power converters. Through state-space averaging, the DDCU equivalent circuit can be used to obtain all the relevant power stage transfer functions. To verify the steady state and dynamic models results, a PSPICE simulation for a given design example is presented.