gebhart/patrepeval huggingface dataset:
Using In-Home Power Lines to Extend the Range of Low-Power Wireless Devices (2009)

This work demonstrates the feasibility of using existing&#13;\nin-home electrical wiring to extend the operational range of&#13;\ncertain wireless devices. Specifically, a wireless keyboard&#13;\noperating at 27 MHz, which has an operational range of&#13;\n1.5 – 2 meters on its own, was extended to work throughout&#13;\na 3-story 4,000 square foot / 371 square meter home by&#13;\ncoupling the antenna port on its receiver to the power lines.&#13;\nCoupling between the keyboard and the power lines&#13;\noccurred over the air, and coupling at the receiver was&#13;\naccomplished capacitively by simply wrapping a wire&#13;\nconnected to the receiver’s antenna port several times&#13;\naround a standard electrical device cord plugged into a wall&#13;\nsocket. This phenomenon of the power line as a&#13;\ncommunications infrastructure for inexpensive and lowpower&#13;\nwireless devices has a variety of interesting potential&#13;\navenues of research in the home.
Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting (2013)

Solar water splitting has received increasing attentions in recent years as a very promising strategy to produce clean hydrogen fuels. This paper presents a novel design consisting of a sandwich structure of Fe2O3/Au/Fe2O3 as the photoanode for photoelectrochemical (PEC) water splitting. The tandem layers are constructed by spin-coating of pre-synthesized Fe2O3 nanoparticles and sputtering of the gold intermediate layer. PEC testing shows that the sandwich structure exhibits much higher photocurrent density as compared to the Fe2O3 double-layer anode. Further studies indicate that the Au intermediate layer can contribute in electron transfer as well as light harvesting due to its plasmonic excitation. The mechanism of the photocurrent enhancement is proposed and such sandwich structure may be applied to other semiconductors to improve PEC performance.
Viscoelastic Deformation Of Fluoride Glass Fibers (1986)

Oxide fibers were shown to undergo permanent deformation under a stress of 1.7 G Pa at a temperature 350°C below Tq . Similar experiments were performed on ZBLAN (ZrF4-BaF2-LaF3- AlF3-NaF)glass fibers which have a much lower Tq (268°C) than oxide glasses. These fluorozirconate fibers undergo deformation undeg relatively low stress and at temperatures ranging from room temperature to 100°C. It is suggested that the bending may well be related to the large specific volume of the fibers compared to the bulk glass.
Polydimethylsiloxane-Based Polyurethanes: Phase-Separated Morphology and In Vitro Oxidative Biostability (2009)

Three series of segmented polyurethane block copolymers were synthesized using 4,4'-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BDO) or 1,3-bis(4-hydroxybutyl)tetramethyl disiloxane (BHTD) as the hard segments, and soft segments composed of poly(dimethyl siloxane) (PDMS)-based and poly(hexamethylene oxide) (PHMO) macrodiols. Copolymers synthesized with the PDMS macrodiol and PDMS and PHMO macrodiol mixtures consist of three microphases: a PDMS phase, hard domains, and a mixed phase of PHMO (when present), PDMS ether end-group segments and some dissolved hard segments. Degrees of phase separation were characterized using small-angle X-ray scattering by applying a pseudo two-phase model, and the morphology resulting from unlike segment demixing was found to be closely related to the in vitro oxidative biostability of these segmented polyurethanes.
Stability and dynamics of vortex clusters in nonrotated Bose-Einstein condensates (2006)

We study stationary clusters of vortices and antivortices in dilute pancake-shaped Bose-Einstein condensates confined in nonrotating harmonic traps. Previous theoretical results on the stability properties of these topologically nontrivial excited states are seemingly contradicting. We clarify this situation by a systematic stability analysis. The energetic and dynamic stability of the clusters is determined from the corresponding elementary excitation spectra obtained by solving the Bogoliubov equations. Furthermore, we study the temporal evolution of the dynamically unstable clusters. The stability of the clusters and the characteristics of their destabilizing modes only depend on the effective strength of the interactions between particles and the trap anisotropy. For certain values of these parameters, there exist several dynamical instabilities, but we show that there are also regions in which some of the clusters are dynamically stable. Moreover, we observe that the dynamical instability of the clusters does not always imply their structural instability, and that for some dynamically unstable states annihilation of the vortices is followed by their regeneration, and revival of the cluster.
Imatinib induces hematologic and cytogenetic responses in patients with chronic myelogenous leukemia in myeloid blast crisis: results of a phase II study (2002)

Blast crisis is the most advanced stage of chronic myelogenous leukemia (CML) and is highly refractory to therapy. CML is caused by expression of the chimeric BCR-ABL tyrosine kinase oncogene, the product of the t(9;22) Philadelphia translocation. Imatinib (Glivec, formerly STI571) is a rationally developed, orally administered inhibitor of the Bcr-Abl tyrosine kinase. A total of 260 patients with CML were enrolled in a phase II trial, of whom 229 had a confirmed diagnosis of CML in blast crisis. Patients were treated with imatinib in daily oral doses of 400 mg or 600 mg. Imatinib induced hematologic responses in 52% of patients and sustained hematologic responses lasting at least 4 weeks in 31% of patients, including complete hematologic responses in 8%. For patients with a sustained response, the estimated median response duration was 10 months. Imatinib induced major cytogenetic responses in 16% of patients, with 7% of the responses being complete. Median survival time was 6.9 months. Nonhematologic adverse reactions were frequent but generally mild or moderate. Episodes of severe cytopenia were also frequent and were attributable to the underlying condition and treatment with imatinib. Drug-related adverse events led to discontinuation of therapy in 5% of patients, most often because of cytopenia, skin disorders, or gastrointestinal reactions. These results demonstrate that imatinib has substantial activity and a favorable safety profile when used as a single agent in patients with CML in blast crisis. Additional clinical studies are warranted to explore the efficacy and feasibility of imatinib used in combination with other antileukemic drugs.
The Crystal structure of Li2 Mn O2 (1983)

Structure type Li 2 VSe 2 avec un empilement hexagonal compact d'anions avec les ions Mn 2+ dans des sites octaedriques d'un plan de base sur deux, les ions Li + occupent les sites tetraedriques dans les autres plans
ChemInform Abstract: A Practical Procedure for the Synthesis of Alkyl Azides at Ambient Temperature in Dimethyl Sulfoxide in High Purity and Yield. (1997)

Abstract 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.
Genomic characterization of meningiomas. (2012)

2020 Background: Understanding the genetic alterations in cancer has lead to groundbreaking discoveries in targeted therapies. Meningiomas are among the most common primary brain tumors, with approximately 18,000 new cases diagnosed annually. Though certain genes have been associated with the development of meningiomas, most notably the tumor suppressor gene neurofibromatosis 2 (NF2), the genetic changes that drive meningiomas remain poorly understood. Our objective was to comprehensively characterize the somatic genetic alterations of meningiomas to gain insight into the molecular pathways that drive this disease. Methods: Fresh frozen specimens and paired blood were collected from 16 consented patients. DNA was extracted from regions of high tumor purity determined by evaluation of H&amp;E slides. Whole-genome sequencing from 10 tumor-normal pairs and whole-exome sequencing from 6 tumor-normal pairs was carried out. We performed an unbiased screen for point mutations, insertions-deletions, rearrangements and copy-number changes across the exomes and genomes. Recurrent (potential driver) events were then analyzed with additional algorithms for statistical significance. Results: Alterations in the NF2 gene were present in 9 of 16 patients. Multiple novel rearrangements and recurrent non-NF2 mutations were also identified in the cohort. Massive genomic rearrangement termed chromothripsis was observed in chromosome 1 in one sample, which has never previously been described in meningiomas, and represents a potentially new mechanism of malignant transformation in this tumor type. Conclusions: While NF2 mutations appear to drive a majority of these tumors, our analysis has uncovered additional potential driver genes in meningiomas, particularly in those tumors negative for NF2 alterations. To our knowledge, this is the first study to comprehensively characterize the totality of somatic genetic alterations in meningiomas, and brings us closer to the development of new therapeutic targets for this disease.
Enantioselective, Potentiometric Membrane Electrode, Based on Vancomycin as Chiral Selector, for the Assay ofS‐Perindopril (2004)

Abstract The construction of an enantioselective, potentiometric membrane electrode (EPME) based on carbon paste impregnated with macrocyclic antibiotic vancomycin (VCM) as chiral selector is described. The proposed electrode was applied for the assay of S‐perindopril (S‐Pdp) raw material and from its pharmaceutical formulation (Coversyl® tablets) by use of a direct potentiometric method. The surfaces of the electrode can easily be renewed by simply polishing on an alumina paper.
A multicenter evaluation of a new periostin detection kit for idiopathic pulmonary fibrosis (2015)

<b>Background:</b> Idiopathic pulmonary fibrosis (IPF) is a heterogeneous disease in pathology, clinical course, and responsiveness to treatment. We previously showed that serum periostin is elevated in IPF patients and inversely associated with pulmonary function (<i>Eur Respir J</i>, <b>37</b> , 1119, 2011). However, serum periostin is high also in various fibrotic diseases. Therefore, it has been awaited to develop a periostin detection kit with a specificity for pulmonary fibrosis. <b>Aims and objectives:</b> We developed a periostin detection ELISA kit, specific for pulmonary fibrosis, and we evaluated the usefulness of a new periostin detection ELISA kit in IPF patients. <b>Methods:</b> We used a new periostin detection kit specific for pulmonary fibrosis (SS20A × SS19D), enrolling 84 IPF patients from seven facilities in Japan. <b>Results:</b> The detection kit showed higher serum periostin than normal donors in IPF patients. Serum periostin showed an inverse association with decline of %VC or %D<sub>LCO</sub> six months later and a positive association with the extent of honeycombing on high-resolution CT. The sensitivities and the specificities between poor and good prognosis patients were significantly higher with the new kit. These abilities of the new kit were better than the old kit, KL-6, or SP-D. Furthermore, the new kit demonstrated its specificity for IPF patients against patients with bronchial asthma, scleroderma, and atopic dermatitis. <b>Conclusions:</b> We have established a new periostin detection kit specific for pulmonary fibrosis. The new periostin kit shows excellent abilities to diagnose IPF and to predict prognosis of lung function in IPF patients. This kit would be of great use in the care or treatment of IPF patients.
A Survey and Perspective on NVoD Systems for Satellite Networks (2007)

In this paper, we review different architectures for near video-on-demand (NVoD) systems on satellite networks. In many scenarios, satellites are the only available option for content distribution. On the other hand, video-on-demand (VoD) has been a topic of intense research in the past. The main problem of VoD systems is that their bandwidth requirements do not scale well with user requests. For this reason, VoD is only feasible under some constraints. In general, NVoD systems are an approximation of VoD ones. In them, downloads do not necessarily start when the request arrives, but some time later. By doing so, it is possible to bound the total required bandwidth at the cost of introducing some delay in content download.
Whole Brain and Regional Hyperintense White Matter Volume and Blood Pressure (2010)

This study confirms several previously observed quantitative trait loci influencing BP and cerebral integrity and identifies a novel significant quantitative trait locus at chromosome 1q24. The genetic results strongly support a role for pleiotropically acting genes jointly influencing BP and cerebral white matter integrity.
Recent developments in biodegradable block copolymers (2021)

Abstract Block copolymers consist of two or more segments of polymer chains in a typical arrangement through connected covalent bonds. Biodegradable block copolymers have emerged as useful carriers for controlled drug release, tissue engineering, and other biomedical applications due to their ability to form colloidal systems and tunable properties. This review focuses on recent advancements in the synthesis, characterization, and biomedical applications of biodegradable block copolymers.
A 128-element Dual-Polarized Software-Defined Phased Array Radio for mm-wave 5G Experimentation (2018)

Multi-antenna millimeter wave communications is on the verge of mainstream commercial deployment. In a not-too-distant 5G-powered future, we expect a dynamic, congested and interference-limited millimeter wave channel that will require us to exploit the large range of spatial diversity afforded by millimeter wave antenna arrays. In prior cellular generations, the development of communications and networking algorithms was significantly aided by software defined radio based experimentation. Similarly, we believe that the challenges of this new era will require the development of algorithms based on experimentation using software defined millimeter wave multi-antenna systems. In this talk, we will present a portable, user-friendly and yet, extremely capable and highly reconfigurable software-defined phased array transceiver platform for experimentation and algorithms development in the 5G era. The platform features 128 independent phase and gain control elements feeding 64 dual-polarized antennas, and supports dual-polarized transmit and receive at 28 GHz. Phase and gain of each element can be controlled, with support for up to 8 simultaneous beams. Key circuit and antenna technology innovations enable calibration-free operation. Moreover, all communications and phased array beam configuration functions are controlled from a single python-based API thereby allowing full beamforming control alongside other software defined radio communications parameters from a simple software interface. Initial 5G related experiments using the software defined phased array is presented.
Keratinocyte growth factor (KGF) enhances postnatal T-cell development via enhancements in proliferation and function of thymic epithelial cells (2007)

The systemic administration of keratinocyte growth factor (KGF) enhances T-cell lymphopoiesis in normal mice and mice that received a bone marrow transplant. KGF exerts protection to thymic stromal cells from cytoablative conditioning and graft-versus-host disease-induced injury. However, little is known regarding KGF's molecular and cellular mechanisms of action on thymic stromal cells. Here, we report that KGF induces in vivo a transient expansion of both mature and immature thymic epithelial cells (TECs) and promotes the differentiation of the latter type of cells. The increased TEC numbers return within 2 weeks to normal values and the microenvironment displays a normal architectural organization. Stromal changes initiate an expansion of immature thymocytes and permit regular T-cell development at an increased rate and for an extended period of time. KGF signaling in TECs activates both the p53 and NF-kappaB pathways and results in the transcription of several target genes necessary for TEC function and T-cell development, including bone morphogenetic protein 2 (BMP2), BMP4, Wnt5b, and Wnt10b. Signaling via the canonical BMP pathway is critical for the KGF effects. Taken together, these data provide new insights into the mechanism(s) of action of exogenous KGF on TEC function and thymopoiesis.
Continuous-Flow Chemistry in Undergraduate Education: Sustainable Conversion of Reclaimed Vegetable Oil into Biodiesel (2018)

This laboratory experiment leverages the pedagogical value and multidisciplinary nature of biodiesel production from vegetable oil to introduce students to continuous-flow chemistry, a modern and rapidly growing approach to chemical synthesis. An interdisciplinary approach exposes students to the practical and conceptual aspects of modern continuous-flow chemistry while simultaneously reinforcing core organic chemistry techniques and investing students in issues of sustainability. Students screen reaction conditions in flow through an inquiry-guided approach and make evidence-based decisions to accomplish the sustainable conversion of waste cooking oil into biofuel. The laboratory experiment is designed to be highly modular and can be completed in two, three, five, or eight laboratory periods. By incorporating the burgeoning field of continuous-flow chemistry into the educational infrastructure, the experiments allow students to develop skills that are highly valued in the modern chemical workforce.
Semantic Segmentation with Active Semi-Supervised Representation Learning (2022)

Obtaining human per-pixel labels for semantic segmentation is incredibly laborious, often making labeled dataset construction prohibitively expensive. Here, we endeavor to overcome this problem with a novel algorithm that combines semi-supervised and active learning, resulting in the ability to train an effective semantic segmentation algorithm with significantly lesser labeled data. To do this, we extend the prior state-of-the-art S4AL algorithm by replacing its mean teacher approach for semi-supervised learning with a self-training approach that improves learning with noisy labels. We further boost the neural network's ability to query useful data by adding a contrastive learning head, which leads to better understanding of the objects in the scene, and hence, better queries for active learning. We evaluate our method on CamVid and CityScapes datasets, the de-facto standards for active learning for semantic segmentation. We achieve more than 95% of the network's performance on CamVid and CityScapes datasets, utilizing only 12.1% and 15.1% of the labeled data, respectively. We also benchmark our method across existing stand-alone semi-supervised learning methods on the CityScapes dataset and achieve superior performance without any bells or whistles.
Sliding-mode control to compensate PVT variations in dual core systems (2012)

In this paper, we present a novel robust sliding-mode controller for stabilizing supply voltage and clock frequency of dual core processors determined by dynamic voltage and frequency scaling (DVFS) methods in the presence of systematic and random variations. We show that maximum rejection for process, voltage and temperature (PVT) variations can be achieved by using the proposed sliding-mode controller. The stabilization of the presented controller is confirmed by the Lyapanov method. Experimental results demonstrate maximum 20% robustness against 20% parameter variations for a hardware of two core processors executing a JPEG decoding application.
LTCCsystem with new high- and high-Q material co-fired with conventional low- base material for wireless communications (2007)

A new LTCC material with characteristics of high , high Q and low TCC have been developed. This material can be co-fired with a conventional base LTCC material and buried resistors with low temperature coefficients of resistance (TCR).The constrained sintering could be applied to this LTCC system and so the dimensions of substrates could be controlled with quite high accuracy.
Bayesian Probabilistic Matrix Factorization: A User Frequency Analysis (2014)

Matrix factorization (MF) has become a common approach to collaborative filtering, due to ease of implementation and scalability to large data sets. Two existing drawbacks of the basic model is that it does not incorporate side information on either users or items, and assumes a common variance for all users. We extend the work of constrained probabilistic matrix factorization by deriving the Gibbs updates for the side feature vectors for items (Salakhutdinov and Minh, 2008). We show that this Bayesian treatment to the constrained PMF model outperforms simple MAP estimation. We also consider extensions to heteroskedastic precision introduced in the literature (Lakshminarayanan, Bouchard, and Archambeau, 2011). We show that this tends result in overfitting for deterministic approximation algorithms (ex: Variational inference) when the observed entries in the user / item matrix are distributed in an non-uniform manner. In light of this, we propose a truncated precision model. Our experimental results suggest that this model tends to delay overfitting.
A New Positioning System Using DVB-T2 Transmitter Signature Waveforms in Single Frequency Networks (2012)

A new positioning system using transmitter signature waveforms of DVB-T2 in Single Frequency Networks (SFNs) is proposed in this paper. Due to the wide coverage of the SFN and extremely high transmission power of digital television (DTV) transmitting stations, positioning based on DTV SFN can be considered as a promising complementary to remedy the poor coverage of the Global Positioning System (GPS) in dense multipath propagation environments. Based on the newly proposed transmitter signature waveform in DVB-T2 systems, transmitter identification and timing estimation using threshold-based first path detection method are jointly achieved, and subsequently utilized for Time-Difference-of-Arrival (TDOA)-based positioning approach. The proposed positioning system is fully compatible with the current DVB-T2 standard and therefore, no dedicated hardware modification is required. The performance of the proposed positioning system is evaluated through computer simulations under different signal propagation scenarios and compared with existing methods. Simulation results show that very high accuracy can be obtained with the proposed positioning system.
Human embryos developing in vitro are susceptible to impaired epithelial junction biogenesis correlating with abnormal metabolic activity (2007)

Our data identify that amino acid turnover can predict TE differentiation. These findings are the first to link two mechanisms, metabolism and junction membrane assembly, which contribute to early embryo development.
Structural Correlates of Ionotropic Glutamate Receptor Function (2008)

Recent structural and functional studies of ionotropic glutamate receptors (iGluRs) have begun to offer rare insight into the structure–function relationship for an integral membrane protein. In particular, advances in our understanding of iGluR structure are providing an opportunity to interpret functional work in terms of potential conformational changes. Moreover, working hypotheses derived from structural insight offer an opportunity to enrich and guide functional studies. This chapter summarizes knowledge of glutamate receptor structure, with an emphasis on how it has shaped our functional understanding of these receptors.