gebhart/patrepeval huggingface dataset:
A Benchmark for Channel Assignment Algorithms in Wireless Testbeds (2013)

Abstract—Channel assignment for multi-radio wireless mesh networks has been proven efficient to increase the network performance by decreasing the interference of simultaneous transmissions. Many algorithms have already been proposed, however, a meaningful comparison of their performance is difficult. The main reasons are that different experimentation environments and performance metrics are used for their evaluation. Thus, finding a universal methodology for the performance evaluation that ensures comparability is complicated. In this paper, we close this gap with a methodology for the performance evaluation of channel assignment algorithms in wireless testbeds. We developed domain-specific performance metrics that express the decrease of network-wide interference. Using these metrics, we developed benchmarking scenarios for performance measurements in wireless testbeds. We present the benchmarking results of a distributed link-based channel assignment algorithm and compare the results to a random-based algorithm and a single channel network. The evaluation was run on the DES-Testbed, a 128 node multi-radio testbed at the Freie Universität Berlin. Keywords-channel assignment; performance evaluation; benchmarking; multi-hop testbed; wireless mesh network; I.
The electrophilic reactivity of alkoxyalkylidene derivatives of heterocyclic keto-methylene compounds (1954)

E. B. Knott, J. Chem. Soc., 1954, 1482 DOI: 10.1039/JR9540001482
A nonlinear rotation-free shell formulation with prestressing for vascular biomechanics (2020)

We implement a nonlinear rotation-free shell formulation capable of handling large deformations for applications in vascular biomechanics. The formulation employs a previously reported shell element that calculates both the membrane and bending behavior via displacement degrees of freedom for a triangular element. The thickness stretch is statically condensed to enforce vessel wall incompressibility via a plane stress condition. Consequently, the formulation allows incorporation of appropriate 3D constitutive material models. We also incorporate external tissue support conditions to model the effect of surrounding tissue. We present theoretical and variational details of the formulation and verify our implementation against axisymmetric results and literature data. We also adapt a previously reported prestress methodology to identify the unloaded configuration corresponding to the medically imaged in vivo vessel geometry. We verify the prestress methodology in an idealized bifurcation model and demonstrate the significance of including prestress. Lastly, we demonstrate the robustness of our formulation via its application to mouse-specific models of arterial mechanics using an experimentally informed four-fiber constitutive model.
156-LB: New Gestational Diabetes Mellitus Risk Algorithm (2022)

Background and Objective: GDM is associated with life-long adverse outcomes for mother and baby, and its incidence is increasing. Markers beyond clinical factors are needed to identify women at high risk and catalyze early preventive interventions. Our aim was to develop a risk assessment algorithm that integrates genetic and clinical variables. Methods: We analyzed a retrospective cohort of 711 women from Hospital Clínico San Carlos (HCSC, Madrid, Spain) , with 425 control pregnancies and 286 GDM cases diagnosed per IADPSG criteria. The HCSC cohort was randomly divided into a training/development dataset (70% of cohort) for algorithm development and a test dataset (30% of cohort) for validation. In addition, we tested the model in a cohort of 157 women (89 controls, 68 cases diagnosed per NDDG criteria from Hospital Cruces (Bilbao, Spain) and in a cohort of 416 women (346 controls, 70 cases per IADPSG criteria from HMPMPS, México) . A total of 114 SNPs were selected for this analysis after exhaustive exploration of the databases published to date of SNPs associated with GDM. The SNPs were selected based on their predictive power and population frequency, with the following criteria: OR&amp;gt;1.2, RAF&amp;gt;0.20, p&amp;lt;1×10-5. Discrimination and calibration of risk scores were assessed using the receiver operating characteristic (ROC) curve in the internal and the external validation groups. Results: The algorithm provided a risk score for GDM, integrating 10 SNPs, maternal age, and pregestational BMI. In the training dataset the AUC was 0.74, sensitivity of 77% and specificity of 64%. AUCs in the HCSC, UAEM and Cruces validation sets were 0.71, 0.70 and 0.62 respectively. Conclusions: This new tool for GDM risk assessment suggests that the utilization of genetic markers in combination with clinical characteristics may improve GDM risk evaluation and accelerate adoption of prevention interventions. Our study also highlights the importance of applying consensus criteria for the diagnosis of GDM. Disclosure L. Mendizabal: Employee; Patia Biopharma S. A. L. Castano: None. M. M. Martínez: None. E. Camarillo-romero: None. H. Mendieta zerón: None. J. Garduno-garcia: Speaker's Bureau; Boehringer Ingelheim International GmbH. R. Corcoy: None. L. Simon: Board Member; Nelum Corp., Oncomatryx Biopharma SL, Patia Biopharma S. A., Quimatryx, SunRock Biopharma S. L., Other Relationship; Precsion Diabetes, Inc. M. Zulueta: None. A. L. Calle: None. M. Arregi: Employee; Patia Biopharma S. A. J. Valerio deogracia: None. A. M. Ramos levi: None. A. Barabash: None. N. García de la torre: Other Relationship; Ferrer. E. Arana: None. I. Urrutia: None. S. Gaztambide: None.
Exceptional Points of Degeneracy in a Transmission Line Periodically Loaded with Gain and Radiation Loss (2021)

We demonstrate that a periodic transmission line consisting of uniform lossless segments together with discrete gain and radiation-loss elements supports exceptional points of degeneracy (EPDs). We provide analytical expressions for the conditions that guarantee the coalescence of eigenvalues and eigenvectors. We show the dispersion diagram and discuss the tunability of the EPD frequency. Additionally, a special case is shown where the eigenvectors coalesce for all frequencies when a specific relationship between transmission line characteristic impedance, and gain/loss elements holds; in other words, in this situation, exceptional points merge to a line of frequency. The class of EPDs proposed in this work is very promising in many of applications that incorporate radiation losses.
A Method of Evaluating the Performance of a Stand-Alone Photovoltaic System in Consideration of Its Probabilistic Characteristics (1997)

A probabilistic approach to evaluating the performance of a stand-alone photovoltaic system with a storage battery is proposed. In consideration of probabilistic characteristics of insolation and electricity demand, the loss-of-load probability as well as the expected values of electric power generated by an auxiliary diesel generator and electric power disposed of are evaluated in relation to the surface area of the photovoltaic array, the capacity of the storage battery, and the capacity of the diesel generator. The probability density function of insolation for each hour is expressed using beta distributions. Instead of considering the hourly change in insolation as a stochastic process, we adopted two simplified models : in one the hourly insolation changes randomly, and in the other it changes deterministically. These models give extreme cases for the hourly change in insolation, from which the system performance for an actual change in insolation can be estimated by interpolation. A case study is carried out using measured data on insolation. The results obtained using this probabilistic approach are compared with those obtained using a deterministic approach, and the usefulness of the proposed approach is ascertained.
Spin amplification by controlled symmetry breaking for spin-based logic (2015)

Spin amplification is one of the most critical challenges for spintronics and spin-based logic in order to achieve spintronic circuits with fan-out. We propose a new concept for spin amplification that will allow a small spin current in a non-magnetic spin channel to control the magnetization of an attached ferromagnet. The key step is to bring the ferromagnet into an unstable symmetric state (USS), so that a small spin transfer torque from a small spin current can provide a magnetic bias to control the spontaneous symmetry breaking and select the final magnetization direction of the ferromagnet. Two proposed methods for achieving the USS configuration are voltage-controlled Curie temperature (VC-TC) and voltage-controlled magnetic anisotropy (VC-MA). We believe the development of new 2D magnetic materials with greater tunability of VC-TC and VC-MA will be needed for practical applications. A successful realization of spin amplification by controlled symmetry breaking will be important for the implementation of existing spin-logic proposals (e.g. "All Spin Logic") and could inspire alternative ideas for spintronic circuits and devices.
Parallel Production of Oligonucleotide Arrays Using Membranes and Reagent Jet Printing (1998)

Here, we present a low-cost method to produce compact arrays using microporous materials and reagent jetting. Oligonucleotides are immobilized on membrane sheets as a series of lines. The membrane sheet is then rolled and bound, and the spiral structure is cut like a "jelly roll" to produce identical arrays. The spiral arrays behave much like larger formats using membranes, and hybridization detection can be accomplished using standard signal-generation mechanisms. The method is particularly useful for producing identical arrays from pre-synthesized oligonucleotides.
Plasma Prolactin Levels and Subsequent Risk of Breast Cancer in Postmenopausal Women (1999)

These prospective data suggest that higher plasma prolactin levels are associated with an increased risk of breast cancer in postmenopausal women.
Characterization of a parallel-beam CCD optical-CT apparatus for 3D radiation dosimetry (2007)

3D measurement of optical attenuation is of interest in a variety of fields of biomedical importance, including spectrophotometry, optical projection tomography (OPT) and analysis of 3D radiation dosimeters. Accurate, precise and economical 3D measurements of optical density (OD) are a crucial step in enabling 3D radiation dosimeters to enter wider use in clinics. Polymer gels and Fricke gels, as well as dosimeters not based around gels, have been characterized for 3D dosimetry over the last two decades. A separate problem is the verification of the best readout method. A number of different imaging modalities (magnetic resonance imaging (MRI), optical CT, x-ray CT and ultrasound) have been suggested for the readout of information from 3D dosimeters. To date only MRI and laser-based optical CT have been characterized in detail. This paper describes some initial steps we have taken in establishing charge coupled device (CCD)-based optical CT as a viable alternative to MRI for readout of 3D radiation dosimeters. The main advantage of CCD-based optical CT over traditional laser-based optical CT is a speed increase of at least an order of magnitude, while the simplicity of its architecture would lend itself to cheaper implementation than both MRI and laser-based optical CT if the camera itself were inexpensive enough. Specifically, we study the following aspects of optical metrology, using high quality test targets: (i) calibration and quality of absorbance measurements and the camera requirements for 3D dosimetry; (ii) the modulation transfer function (MTF) of individual projections; (iii) signal-to-noise ratio (SNR) in the projection and reconstruction domains; (iv) distortion in the projection domain, depth-of-field (DOF) and telecentricity. The principal results for our current apparatus are as follows: (i) SNR of optical absorbance in projections is better than 120:1 for uniform phantoms in absorbance range 0.3 to 1.6 (and better than 200:1 for absorbances 1.0 to 3.5 with the test target and a novel absorbance range extension method), (ii) the spatial resolution is shown to be at worst 0.5 mm (and often better than this) with an associated DOF of 8 cm, (iii) the SNR of uniform phantoms in reconstruction domain is above 80:1 (one standard deviation) over an absorbance dynamic range of 0.3 to 1.6, (iv) the apparatus is telecentric and without distortion. Finally, a sample scan and reconstruction of a scan of a PRESAGE dosimeter are shown, demonstrating the capabilities of the apparatus.
Polypores of a North Carolina Piedmont forest (2000)

On September 6, 1996 winds from Hurricane Fran downed trees throughout the Piedmont region of North Carolina and thereby provided abundant substrate for the development of polypore fungi.Two forested tracts in Wake Co., NC, totaling 115 hectares, were surveyed for polypore fungi.A 100% sampling of these tracts was completed during the first year after the hurricane.Fifty-eight polypore species representing 37 genera in five families were recorded on 24 taxa of woody plants.Five of these fungi are reported for the first time in North Carolina.Fourteen of the hostfungus associations are new reports for the United States.
Equilibrium Selection in Interference Management Non-Cooperative Games in Femtocell Networks (2012)

In this paper we apply a special class of n-person non-cooperative games, which we call Weakly Coupled Constrained Games (WCCG), in femtocell systems to manage the aggregated interference they may generate at macrocell associated users. WCCG have the following structure: the utility of a player de
Bayesian Inference and Maximum Entropy Methods in Science and Engineering (MaxEnt2014) (2015)

International audience
Fusion of mouse alveolar macrophages induced by 1α,25‐dihydroxyvitamin D3 involves extracellular, but not intracellular, calcium (1990)

We have reported that the active form of vitamin D3, 1 alpha, 25-dihydroxy-vitamin D3 [1 alpha, 25(OH)2D3], directly induces the fusion of mouse alveolar macrophages (Abe et al: Proc. Natl. Acad. Sci. USA 80:5583-5587, 1983). The fusion process can be divided into two phases: the 1 alpha,25(OH)2D3-dependent priming phase (0-18 hr) and the calcium-dependent progression phase (18-72 hr) (Jin et al: J. Cell. Physiol. 137:110-116, 1988). In the present study, we examined the role of calcium in the progression phase of macrophage fusion induced by 1 alpha,25(OH)2D3. Macrophages pretreated with 1 alpha,25(OH)2D3 for 48 hr in a low-calcium (0.13 mM) medium began to fuse quickly 30 min after the culture medium was switched to a normal calcium (1.85 mM) medium. Of various cations tested, calcium was the most effective in inducing fusion, followed by strontium and manganese. Magnesium, potassium, and sodium had no effect. Calcium ionophores such as A23187 and ionomycin did not induce fusion in the low-calcium medium, nor did they potentiate fusion in the media containing higher concentrations of calcium. The intracellular concentration of free Ca2+, measured by a fluorescent method using fura-2 AM, was 116 +/- 1 nM in the macrophages pretreated with 1 alpha,25(OH)2D3 for 48 hr in the low-calcium medium. When calcium chloride was added to the assay system at a final concentration of 1.85 mM, the cytosolic free Ca2+ concentration did not increase appreciably (from 116 to 144 nM). But the macrophages began to fuse quickly when CaCl2 was added. In contrast, adding ionomycin increased cytosolic free Ca2+ from 116 to 440 nM, but no fusion occurred. These results clearly indicate that the extracellular, but not the intracellular, calcium is involved in the progression phase of the fusion of mouse alveolar macrophages primed by 1 alpha,25(OH)2D3.
Improving Raman spectroscopy using diode lasers at 785 nm for shifted excitation Raman difference spectroscopy (2020)

Shifted excitation Raman difference spectroscopy (SERDS) has been successfully demonstrated for separating Raman signals from background interferences. This powerful tool has been applied for in situ applications such as in vivo diagnostics and outdoor investigations. Here, diode lasers are well suited excitation light sources and their compact size and electro-optical efficiency allows integrating them into portable devices such as handheld sensor systems. In the last decade our institute has developed and applied diode lasers for Raman spectroscopy and SERDS at 785 nm. Here, wavelength stabilization is realized using internal frequency selective elements such as distributed feedback (DFB) or distributed Bragg reflector (DBR) gratings. In this contribution, an overview of Raman spectroscopy and SERDS using our diode lasers and diode laser systems emitting at 785 nm will be given. DFB ridge waveguide (RW) lasers providing 0.2 W and wavelength tuning for SERDS via injection current will be discussed. DFB broad area devices with 1 W optical output power suitable for Raman spectroscopy are realized. Dual-wavelength Y-branch DBR-RW diode lasers are developed and show optical powers up to 0.2 W. The devices provide a flexible spectral distance between the two excitation lines via implemented heater elements. Recently, a micro-integrated diode laser based dual-wavelength MOPA at 785 nm with 0.5 W optical power suitable for SERDS has been developed. Laser characteristics and Raman experiments will be presented. The results demonstrate the suitability of these devices for SERDS improving Raman spectroscopy for various applications e.g. under in situ conditions.
Globally distributed content delivery (2002)

When we launched the Akamai system in early 1999, it initially delivered only Web objects (images and documents). It has since evolved to distribute dynamically generated pages and even applications to the network's edge, providing customers with on-demand bandwidth and computing capacity. This reduces content providers' infrastructure requirements, and lets them deploy or expand services more quickly and easily. Our current system has more than 12,000 servers in over 1,000 networks. Operating servers in many locations poses many technical challenges, including how to direct user requests to appropriate servers, how to handle failures, how to monitor and control the servers, and how to update software across the system. We describe our system and how we've managed these challenges.
Spoken and non-verbal interaction experiments with a social robot (2016)

During recent years, we have witnessed the start of a revolution in personal robotics. Once associated with highly specialized manufacturing tasks, robots are rapidly starting to become part of our everyday lives. The potential of these systems is far-reaching; from co-worker robots that operate and collaborate with humans side-by-side to robotic tutors in schools that interact with humans in a shared environment. All of these scenarios require systems that are able to act and react in a social way. Evidence suggests that robots should leverage channels of communication that humans understand—despite differences in physical form and capabilities. We have developed Furhat—a social robot that is able to convey several important aspects of human face-to-face interaction such as visual speech, facial expression, and eye gaze by means of facial animation that is retro-projected on a physical mask. In this presentation, we cover a series of experiments attempting to quantize the effect of our social robot and how it compares to other interaction modalities. It is shown that a number of functions ranging from low-level audio-visual speech perception to vocabulary learning improve when compared to unimodal (e.g., audio-only) settings or 2D virtual avatars.
Preischemic Administration of Flunarizine or Phencyclidine Reduces Local Cerebral Glucose Utilization in Rat Hippocampus Seven Days after Ischemia (1991)

The purpose of the present study was to investigate the influence of ischemia on postischemic metabolic activity of the brain. Furthermore, the effect of preischemic application of neuroprotective agents such as flunarizine or phencyclidine on postischemic local cerebral glucose utilization (LCGU) was examined. Forebrain ischemia in the rat was performed for 10 min with bilateral carotid clamping, administration of trimethaphan and blood withdrawal to obtain a mean arterial blood pressure of 40 mm Hg. LCGU was determined 7 days after ischemia by injecting 14C-deoxy-D-glucose in saline solution. A significant increase in LCGU in the CA1 subfield of the hippocampus was found 7 days after ischemia, whereas preischemic administration of flunarizine or phencyclidine inhibited this increase. Alterations in LCGU of other brain regions were insignificant.
Producer Services and Economic Development (2017)

Over the past decades, producer services have undergone rapid growth and become a leading sector in shaping urban and regional economies in the Western world. Due to their importance, numerous efforts have been made to understand the spatial development of producer services and how this is related to the recent change in the urban system and within cities. The phenomenon of producer service growth also occurs in developing economies, although development still lags far behind that in the West. Western experiences have shed much important light on producer services and economic development in developing countries. But, embedded in a different economic and political context, how the growth trajectory of producer services in these countries conforms to that in advanced economies has raised important theoretical questions that require further research.
Structure and origin of defective genomes contained in serially passaged herpes simplex virus type 1 (Justin) (1979)

Restriction enzyme and hybridization analyses have revealed that high-density DNA prepared from passage 15 of serially passaged herpes simplex virus type 1 (Justin) contains three major classes of modified viral DNA molecules, each composed of distinct but closely related types of repeate units. The DNA sequences within the three types of repeat units are colinear with the DNA sequences located at the right end (between coordinates 0.94 and 1.0) of the parental herpes simplex virus type 1 genome. Thus, the three types of repeat units each contain the entire repeat sequence (ac) (which brackets the unique sequences of the small [S] component of herpes simplex virus type 1 DNA) and differ only with respect to the amount of unique S sequences which they contain. The three classes of high-density DNA molecules were found to be stably propagated between passages 6 and 15 of this series.
Quantifying information transfer by globular proteins (2007)

info:eu-repo/semantics/published
Construction of the measurement system and its experimental study for diagnosing cerebral functional disorders using eye-sensing HMD (2003)

Ocular information such as pupil size, eyeblink or eye gaze point can be utilized for diagnosis of cerebral function disorders. In this paper, the relationship between ocular information and cerebral function disorders is described first, followed by a review of methods of measuring ocular information. A system configuration is described for an eye-sensing HMD which can not only provide three-dimensional images but also measure ocular information. Then, a measurement system to measure ocular information by using the eye-sensing HMD and its experimental study for diagnosing cerebral function disorders are described.
Swelling of the floor of the mouth: a clinical dilemma. (1996)

Swelling of the floor of the mouth is sometime difficult to diagnose clinically. Lithiasis and neoplasm are the most frequent causes of intraoral swelling. Also after plain radiology and computed tomography the diagnosis is often dubious. A case of swelling of the floor of the mouth due to an adenoid cystic carcinoma of the sublingual gland is reported.