gebhart/patrepeval huggingface dataset:
Robust MIMO Detection using Hypernetworks with Learned Regularizers (2021)

Optimal symbol detection in multiple-input multiple-output (MIMO) systems is known to be an NP-hard problem. Recently, there has been a growing interest to get reasonably close to the optimal solution using neural networks while keeping the computational complexity in check. However, existing work based on deep learning shows that it is difficult to design a generic network that works well for a variety of channels. In this work, we propose a method that tries to strike a balance between symbol error rate (SER) performance and generality of channels. Our method is based on hypernetworks that generate the parameters of a neural network-based detector that works well on a specific channel. We propose a general framework by regularizing the training of the hypernetwork with some pre-trained instances of the channel-specific method. Through numerical experiments, we show that our proposed method yields high performance for a set of prespecified channel realizations while generalizing well to all channels drawn from a specific distribution.
Lane Change Intent Analysis Using Robust Operators and Sparse Bayesian Learning (2007)

In this paper, we demonstrate a driver intent inference system that is based on lane positional information, vehicle parameters, and driver head motion. We present robust computer vision methods for identifying and tracking freeway lanes and driver head motion. These algorithms are then applied and evaluated on real-world data that are collected in a modular intelligent vehicle test bed. Analysis of the data for lane change intent is performed using a sparse Bayesian learning methodology. Finally, the system as a whole is evaluated using a novel metric and real-world data of vehicle parameters, lane position, and driver head motion.
Elevated pretreatment interleukin-10 serum level is an International Prognostic Score (IPS)-independent risk factor for early treatment failure in advanced stage Hodgkin lymphoma (2008)

Early treatment failure is still a clinical challenge despite high cure rates in Hodgkin lymphoma (HL) patients. To identify the biological risk factors predicting early treatment failure, we performed a retrospective case-control study. Forty-seven pretherapeutic serum samples were available from 47 advanced stage HL patients with early treatment failure and from 47 matched controls in complete remission. All patients were treated within German Hodgkin Study Group phase 3 trials. Matching was done according to treatment, stage, age, gender, International Prognostic Score (IPS) and histological subtype. Pretreatment serum levels of 30 cytokines, chemokines and soluble receptors were determined using immunoassays and flow cytometer based cytometric bead arrays. Only interleukin-10 serum levels were significantly associated with early treatment failure after statistical correction for multitesting (paired-sign test, p = 0.0008). In summary, pretherapeutic interleukin-10 levels are associated with early treatment failure within 12 months after the end of treatment in advanced stage HL independently from known clinical factors such as age or IPS.
Escalated-Dose BEACOPP in the Treatment of Patients With Advanced-Stage Hodgkin's Lymphoma: 10 Years of Follow-Up of the GHSG HD9 Study (2009)

The 10-year follow-up of the HD9 trial demonstrates a stabilized significant improvement in long-term FFTF and OS for BEACOPP escalated in advanced-stage HL. These results challenge ABVD as standard of care for this patient population.
Chromium Catalysts Supported by a Nonspectator NPN Ligand: Isolation of Single‐Component Chromium Polymerization Catalysts (2008)

Switchable catalytic activity, from nonselective ethylene oligomerization to trimerization and even polymerization, is shown by 1, depending on the alkyl aluminum compound with which it is activated. AlMe3 or iBu2AlCl resulted in highly active single-component polymerization catalysts (see scheme; R=Me, PE=polyethylene), the activity of which can be switched or inhibited by the presence of an additional alkyl aluminum compound. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z800845_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Fiber Bragg gratings in hole-assisted multicore fiber for space division multiplexing (2014)

In this Letter we present, for the first time to our knowledge, the results of fiber Bragg grating (FBG) inscription in a novel microstructured multicore fiber characterized by seven single-mode isolated cores. A clear Bragg reflection peak can be observed in all of the 7 cores after one inscription process with a KrF nanosecond laser in a Talbot interferometer set up. We furthermore perform a numerical analysis of the effective refractive indices of the particular modes and compare it with the FBG inscription results. An experimental analysis of the strain and temperature sensitivities of all of the Bragg peaks is also included.
Implications for the Ligase Chain Reaction in Gastroenterology (1993)

The ligase chain reaction (LCR) is a new DNA detection method that uses thermostable ligase to discriminate exquisitely and amplify single base changes in genes of medical interest. This enzyme specifically links two adjacent oligonucleotides when hybridized to a complementary target only when the nucleotides are perfectly base-paired at the junction. Oligonucleotide products are exponentially amplified by thermal cycling of the ligation reaction in the presence of a second set of adjacent oligonucleotides, complementary to the first set and the target. A single-base mismatch prevents ligation and amplification, thus distinguishing a single base mutation from the normal allele. The use of a thermostable ligase allows the enzyme to survive thermal cycling in a fashion analogous to Taq polymerase in the polymerase chain reaction. The assay is compatible with nonradioactive detection and has the potential for automation. Although still in its early stages of development, LCR is expected to find many uses in the field of gastroenterology and in medicine in general. In this review we briefly describe how LCR works and discuss potential areas of application in gastroenterology.
ChemInform Abstract: SELEKTIVE ABSPALTUNG VON SCHUTZGRUPPEN MITTELS ELEKTROLYSE BEI KONSTANTEM POTENTIAL (1972)

Abstract Bei der Elektrolyse der Ester (I) an einer Quecksilberelektrode in protonischem oder aprotonischem Medium entsteht Benzoesäure (II).
New Technical Developments in Multislice CT, Part 2: Sub-Millimeter 16-Slice Scanning and Increased Gantry Rotation Speed for Cardiac Imaging (2002)

Despite all promising advances, some challenges remain for ECG-gated multislice CT examinations of the heart and the coronary arteries with current 4-slice detectors: adequate visualization of stents and severely calcified coronary arteries, examination of patients with higher heart rates and patients, who cannot adequately hold their breath for at least 30 sec. The new generation of multislice CT systems offering simultaneous acquisition of up to 16 sub-millimeter slices and gantry rotation times shorter than 0.5 sec has the potential to overcome these limitations. We describe the technical principles of cardiac scanning with a state-of-the-art 16-slice CT equipment (SOMATOM Sensation 16, Siemens AG, Forchheim, Germany). We discuss an extension of the Adaptive Cardio Volume (ACV) reconstruction approach for ECG-gated multislice spiral CT. We show the impact of reduced gantry rotation time (0.42 sec) on temporal resolution, and we demonstrate the influence of slice width on the visualization of stents and plaques. Deviating from general purpose applications a cone-correction is not required for cardiac scanning with 16-slice CT systems. In addition to the absolute improvement, the temporal resolution shows a different dependence on the patient's heart rate for 0.42 sec rotation time, reaching its optimum (105 msec) at 81 BPM. This has the potential to expand the range of heart rates accessible to routine clinical examinations. Owing to sub-millimeter slice width and optimized in-plane resolution characteristics, visualization of stents and severe calcifications in coronary arteries is significantly improved. Clinical experience will be needed to fully evaluate the potential of 16-slice technology for cardiac imaging.
Reduced optical losses in refractory plasmonic titanium nitride thin films deposited with molecular beam epitaxy (2020)

Refractory plasmonic materials that have optical properties close to those of noble-metals and at the same time are environmentally friendly, commercially viable and CMOS-compatible could lead to novel devices for many thermo-photonic applications. Recently developed TiN thin films overcome some of the limitations of noble-metals, as their optical loss is larger than noble metals and conventional methods to deposit TiN films are not compatible for its integration with other semiconductors. In this work, high-quality epitaxial single-crystalline TiN thin films are deposited with plasma-assisted molecular beam epitaxy (MBE) that exhibit optical losses that are less than that of Au in most part of the visible (300 nm – 580 nm) and near-IR spectral ranges (1000 nm - 2500 nm). In addition, a large figure-of-merit for surface plasmon polariton (SPP) propagation length compared to the previously reported TiN films is achieved with the MBE-deposited films.
Kalıcı Mıknatıslı Senkron Motorların Dogrudan Sürüslü Beyaz Esya Uygulamalarında Kullanımı / Permanent Magnet Synchronous Motors Used in Direct-Drive Home Appliance Applications (2012)

Bu çalısmada dogrudan sürüs (DS) beyaz esya uygulaması için kalıcı veya sürekli mıknatıslı bir motor tasarımı gerçeklestirilmistir. Farklı oluk sayısı-kutup sayısı seçenekleri incelenmis, uygun kombinasyon belirlenmis, verilen tasarım kriterleri dogrultusunda motor elektromanyetik, termal ve yapısal analizleri gerçeklestirilerek motor tasarımı sonlandırılmıs ve motor prototip asamasına getirilmistir. Abstract This paper talks about a permanent magnet motor design for direct-drive home appliance applications. Within the study, various slot and pole number combinations are investigated and appropriate combination is found. Motor electromagnetic design, thermal and structural analyses are all completed for given design specifications and the motor prototype work is started.
Rhodium(I), a Carbene-Transfer Transition-Metal Ion and a Synthetic Route to Symmetrical and Asymmetrical Substituted trans-RhCl(CO)(NHC)(NHC) Complexes (2009)

Group IX element Rh(I) was shown to be able to transfer N-heterocyclic carbenes. The dimerization process of RhCl(CO)2(NHC) to [RhCl(CO)(NHC)]2, followed by a rearrangement step to trans-RhCl(CO)(NHC)2, is one possible mechanism for the loss of activity of Rh(I) species in various catalytic reactions. Utilizing this methodology symmetrical and asymmetrical trans-RhCl(CO)(NHC)(NHC) complexes were synthesized and characterized.
A reaction-path Hamiltonian described with quasirectilinear vibrational coordinates constructed from a nonlinear combination of curvilinear internal coordinates: Application to examination of the reaction CH4+F→CH3+HF (2000)

The reaction-path Hamiltonian formulation reported in the preceding paper, where the Hamiltonian is described with quasirectilinear vibrational coordinates related nonlinearly to curvilinear internal coordinates, was applied to the examination of the reaction CH4+F→CH3+HF. For this reaction we made ab initio calculations and determined the harmonic vibrational frequencies along the reaction path by each of (1) a method using the new formulation, (2) the method of Miller et al. [J. Chem. Phys. 72, 99 (1980)], and (3) that of Truhlar et al. [J. Chem. Phys. 102, 3188 (1995)]. We found that the harmonic vibrational frequencies determined by the new method differ significantly from those determined by the other two methods in the region away from the stationary states. This difference is attributed to the limitations of the latter two methods. We concluded that the reaction-path Hamiltonian determined by the new method should be used to obtain an accurate picture of the reaction-path dynamics under the zero-angular-momentum assumption.
Simultaneousin vivodynamic contrast-enhanced magnetic resonance and scintigraphic imaging (2011)

In this study, we investigated the in vivo application of an integrated small-animal magnetic resonance (MR) and gamma-ray imaging system that consists of a semiconductor-based radiation detector, a parallel-hole collimator, and a specialized radiofrequency coil. Gadodiamide and (99m)Tc sestimibi agents were injected simultaneously into a mouse, and simultaneous dynamic contrast-enhanced MR and scintigraphic images of the kidneys were acquired. The time curves of both the MR signal intensity and radioactivity indicate a rapid uptake of the agents followed by a more gradual excretion, consistent with the previously reported literature. Our results demonstrate the feasibility of measuring multiple biological processes at the same time using both MR contrast agents and radiotracers.
COSMOLOGICAL PERTURBATIONS: MYTHS AND FACTS (2004)

We discuss (and debunk) ten common myths about cosmological perturbations in inflationary and ekpyrotic/cyclic models and their implications for future observations.
Correlation between the backgating effect of a GaAs MESFET and the compensation mechanism of a semi-insulating substrate (1985)

The backgating effect on FET'S fabricated both on a Cr-doped HB and on an undoped LEC substrate is investigated. The deep impurity compensation is found to influence the backgating effect both through the formation of the electric dipole layer at the interface between the n-channel and i-substrate, and through the voltage drop in the semi-insulating substrate.
Mining the optical bandwidth for a terabit per second (1997)

A significant part of optical-fiber capacity can be tapped now that optical amplifiers can boost many high-speed channels simultaneously. The erbium-doped optical fiber amplifier opened the floodgates to wide-bandwidth, all-optical schemes for multiplexing many wavelengths. Until the advent of the erbium-doped fiber amplifier, no practical all-optical amplifier existed. Optical signals were instead regenerated electronically to overcome the attenuation inherent in the silica fiber as well as other losses due to optical components along the line.
A combination of experimental and computational methods to study the reactions during a Lignin-First approach (2020)

Abstract Current pulping technologies only valorize the cellulosic fiber giving total yields from biomass below 50 %. Catalytic fractionation enables valorization of both cellulose, lignin, and, optionally, also the hemicellulose. The process consists of two operations occurring in one pot: (1) solvolysis to separate lignin and hemicellulose from cellulose, and (2) transition metal catalyzed reactions to depolymerize lignin and to stabilized monophenolic products. In this article, new insights into the roles of the solvolysis step as well as the operation of the transition metal catalyst are given. By separating the solvolysis and transition metal catalyzed hydrogen transfer reactions in space and time by applying a flow-through set-up, we have been able to study the solvolysis and transition metal catalyzed reactions separately. Interestingly, the solvolysis generates a high amount of monophenolic compounds by pealing off the end groups from the lignin polymer and the main role of the transition metal catalyst is to stabilize these monomers by transfer hydrogenation/hydrogenolysis reactions. The experimental data from the transition metal catalyzed transfer hydrogenation/hydrogenolysis reactions was supported by molecular dynamics simulations using ReaXFF.
Stationary grid pattern removal using 2D technique for moire-free radiographic image display (2003)

The striped patterns are superimposed in the radiographic images exposed with the stationary grid. When those images are displayed on a monitor, the scaling process causes the low frequency moire patterns overlapped over the object shadow. To prevent these moire patterns, it is necessary to remove the grid patterns before scaling process. The 1-dimenstional filtering can remove the grid pattern, on the other hand it removes some diagnostic information too. We developed two different grid pattern removal processes using 2-dimensional technique. The 2-dimensional technique can localize the information 2-dimensionally in frequency domain, so that the localized information includes the grid information. So the 2-dimensional method can remove the grid pattern with minimum loss of diagnostic information. Quality of images processed by the two 2-dimensional methods and the conventional 1-dimensional filtering method were evaluated. No grid patterns were observed in the images processed by three methods. However, as compared with the 1-dimensional filtered image, the images processed by the 2-dimensional methods were much sharper and have more detail information.
Sequence dependence of secondary‐structure formation part IV Helix‐forming potential of amphiphilic oligopeptides containing aib residues (1986)

Abstract The conformational properties of Aib‐containing oligopeptides having the propensity to adopt amphiphilic helical conformations were investigated by CD spectroscopy in solution. The peptides CF 3 COOH.H‐Pro‐Glu‐[Ala‐Aib‐Glu‐Aib‐] 4 Gly‐OH ( I ), HCl.H‐Pro‐Ala‐Aib‐[Gul‐Ala‐Ala‐Aib‐] 2 Glu‐Ala‐Aib‐Gly‐PEGM ( II ), and CF 3 COOH.H‐Ala‐Aib‐[Glu‐Glu‐Ala‐Aib‐] 3 PEGM ( III ) were synthesized according to the general principles of the liquid‐phase method for peptide synthesis. Peptides I‐III exhibit helical conformations in CF 3 CH 2 OH, MeOH, and in H 2 O at acidic pH; however, at pH 7, only II forms a stable helix, whereas I and III are predominantly in an unordered conformation. Some general features for the construction of amphiphilic helices are discussed in the light of the experimental data.
Lymphotoxin β Receptor Regulates the Development of CCL21-Expressing Subset of Postnatal Medullary Thymic Epithelial Cells (2013)

Medullary thymic epithelial cells (mTECs) play a pivotal role in the establishment of self-tolerance in T cells by ectopically expressing various tissue-restricted self-Ags and by chemoattracting developing thymocytes. The nuclear protein Aire expressed by mTECs contributes to the promiscuous expression of self-Ags, whereas CCR7-ligand (CCR7L) chemokines expressed by mTECs are responsible for the attraction of positively selected thymocytes. It is known that lymphotoxin signals from the positively selected thymocytes preferentially promote the expression of CCR7L rather than Aire in postnatal mTECs. However, it is unknown how lymphotoxin signals differentially regulate the expression of CCR7L and Aire in mTECs and whether CCR7L-expressing mTECs and Aire-expressing mTECs are distinct populations. In this study, we show that the majority of postnatal mTECs that express CCL21, a CCR7L chemokine, represent an mTEC subpopulation distinct from the Aire-expressing mTEC subpopulation. Interestingly, the development of CCL21-expressing mTECs, but not Aire-expressing mTECs, is impaired in mice deficient in the lymphotoxin β receptor. These results indicate that postnatal mTECs consist of heterogeneous subsets that differ in the expression of CCL21 and Aire, and that lymphotoxin β receptor regulates the development of the CCL21-expressing subset rather than the Aire-expressing subset of postnatal mTECs.
ChemInform Abstract: Tautomerism and Physical Properties of Pyrido[1,2‐a]benzimidazole (PBI) GABA‐A Receptor Ligands. (2001)

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.
Cross Layer Hardware Demonstrator for Wireless Communication Based on a FPGA (2009)

This paper describes a hardware demonstrator for wireless communication applications which is integrated into a single FPGA. The physical layer (PHY) is based on the Orthogonal Frequency Division Multiplexing (OFDM) transmission technique and is implemented with dedicated logic. The data link layer is defined by program code which is executed on the LEON3, a RISC processor module which is based on the SPARC architecture.
Biological Activity of Mineral Fibers and Carbon Particulates: Implications for Nanoparticle Toxicity and the Role of Surface Chemistry (2008)

This chapter contains sections titled: Correlation of Biological Properties of Natural Minerals with Structure Correlations of Structure with Biological Response of Particulates Acknowledgments References
The Effect of Phase Cancellation on Estimates of Calcaneal Broadband Ultrasound Attenuation in Vivo (2007)

Broadband ultrasonic attenuation (BUA) is a clinically-accepted measurement for prediction of osteoporotic fracture risk. Typical clinical BUA measurements are performed with phase-sensitive receivers and, therefore, can be affected by phase cancellation. In order to separate the effects of conventional attenuation (absorption plus scattering) from phase cancellation, BUA was measured on phantoms with acrylic wedge phase aberrators and on 73 women using both phase sensitive (PS) and phase insensitive (PI) reception. A clinical bone sonometer with a two-dimensional (2-D) receiver array was used. PI BUA measurements on phantoms with acrylic wedge phase aberrators were found to be far more resistant to phase cancellation than PS BUA measurements. In data from 73 women, means and standard deviations for BUA measurements were 81.4 +/- 21.4 dB/MHz (PS) and 67.2 +/- 9.7 dB/MHz (PI). The magnitude of the discrepancy between PS BUA and PI BUA tended to increase with bone mineral density (BMD).
ChemInform Abstract: Synthesis of Highly Magnetic, Air‐Stable Iron—Iron Carbide Nanocrystalline Particles by Using Power Ultrasound. (2002)

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.
Development of ultralow energy (1–10 eV) ion scattering spectrometry coupled with reflection absorption infrared spectroscopy and temperature programmed desorption for the investigation of molecular solids (2014)

Extremely surface specific information, limited to the first atomic layer of molecular surfaces, is essential to understand the chemistry and physics in upper atmospheric and interstellar environments. Ultra low energy ion scattering in the 1-10 eV window with mass selected ions can reveal extremely surface specific information which when coupled with reflection absorption infrared (RAIR) and temperature programmed desorption (TPD) spectroscopies, diverse chemical and physical properties of molecular species at surfaces could be derived. These experiments have to be performed at cryogenic temperatures and at ultra high vacuum conditions without the possibility of collisions of neutrals and background deposition in view of the poor ion intensities and consequent need for longer exposure times. Here we combine a highly optimized low energy ion optical system designed for such studies coupled with RAIR and TPD and its initial characterization. Despite the ultralow collision energies and long ion path lengths employed, the ion intensities at 1 eV have been significant to collect a scattered ion spectrum of 1000 counts/s for mass selected CH2(+).