gebhart/patrepeval huggingface dataset:
Atomic Norm Denoising-Based Joint Channel Estimation and Faulty Antenna Detection for Massive MIMO (2017)

We consider joint channel estimation and faulty antenna detection for massive multiple-input multiple-output (MIMO) systems operating in time-division duplexing (TDD) mode. For systems with faulty antennas, we show that the impact of faulty antennas on uplink (UL) data transmission does not vanish even with unlimited number of antennas. However, the signal detection performance can be improved with a priori knowledge on the indices of faulty antennas. This motivates us to propose the approach for simultaneous channel estimation and faulty antenna detection. By exploiting the fact that the degrees of freedom of the physical channel matrix are smaller than the number of free parameters, the channel estimation and faulty antenna detection can be formulated as an extended atomic norm denoising problem and solved efficiently via the alternating direction method of multipliers (ADMM). Furthermore, we improve the computational efficiency by proposing a fast algorithm and show that it is a good approximation of the corresponding extended atomic norm minimization method. Numerical simulations are provided to compare the performances of the proposed algorithms with several existing approaches and demonstrate the performance gains of detecting the indices of faulty antennas.
PD-L1 expression and prognostic impact in glioblastoma (2015)

The incidence of PD-L1 expression in GBM patients is frequent but is confined to a minority subpopulation, similar to other malignancies that have been profiled for PD-L1 expression. Higher expression of PD-L1 is correlated with worse outcome.
The betaA4 amyloid peptide complexes to and enhances the uptake of beta-very low density lipoproteins by the low density lipoprotein receptor-related protein and heparan sulfate proteoglycans pathway. (1999)

We recently suggested that soluble beta-amyloid (betaA4) is a ligand of the low density lipoprotein receptor-related protein and heparan sulfate proteoglycan pathway. In the blood and in the cerebrospinal fluid, betaA4 is bound to apolipoprotein E containing lipoproteins. We examined how binding of betaA4 to beta-very low density lipoproteins (betaVLDL) alters their cellular metabolism. Compared with betaVLDL alone, complexes of betaVLDL and betaA4 were internalized, but not degraded at increased rates in fibroblasts and in rat hippocampal cells. The uptake of complexes of betaVLDL and betaA4 was not mediated by the low density lipoprotein receptor. BetaA4 not complexed to betaVLDL competed with the endocytosis of alpha2-macroglobulin and apolipoprotein E-enriched betaVLDL. The uptake of complexes of betaVLDL and betaA4 was inhibited by heparin, suramin, lactoferrin, the 39-kd receptor-associated protein, and alpha2-macroglobulin. Complexes of betaVLDL and betaA4 were taken up at reduced rates in Chinese hamster ovary cells partially (pgsB-650) or completely lacking (pgsA-745) proteoglycans. BetaA4 in which the positively charged amino acids between positions 13 and 17 (HHQKL) were replaced by glycine (GGQGL) failed to enhance the uptake of betaVLDL. Together, the data suggest that binding of betaA4 to betaVLDL produces particles that are endocytosed by low density lipoprotein receptor-related protein and HSPG. Complexes of betaVLDL and betaA4 had an intracellular half-life 4-fold that of native betaVLDL, did not undergo lysosomal degradation, and were resecreted into the culture medium. These findings represent the first identification of an endocytotic pathway for betaA4 and may be of relevance to the pathobiochemistry of neurodegenerative disorders.
Simulation of the Crystal Field Effect on the Pr<sup>3+</sup> Ion in K<sub>2</sub>La<sub>1‐x</sub>Pr<sub>x</sub>Cl<sub>5</sub> Ternary Chlorides. (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.
Rheology of Fibrin Clots. VI. Stress Relaxation, Creep, and Differential Dynamic Modulus of Fine Clots in Large Shearing Deformations (1983)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Paul A. Janmey, Eric J. Amis, John D. Ferry; Rheology of Fibrin Clots. VI. Stress Relaxation, Creep, and Differential Dynamic Modulus of Fine Clots in Large Shearing Deformations. J. Rheol. 1 April 1983; 27 (2): 135–153. https://doi.org/10.1122/1.549722 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentThe Society of RheologyJournal of Rheology Search Advanced Search |Citation Search
Cyclopropenyliden (1984)

Das einfachste cyclisch konjugierte Carben ist die Titelverbindung 2a ⟷ 2b, die durch Pyrolyse des Polycyclus 1 erzeugt wurde. 2 ist in einer Argon-Matrix bei 10 K stabil und hat einen Singulett-Grundzustand. Der „aromatischen Ylidstruktur”︁ 2b kommt besonderes Gewicht zu.
IoT based data processing for automated industrial meter reader using Raspberry Pi (2016)

With the increasing importance of information processing in industries arises the need for efficient data logging systems that are compatible with existing measuring devices such as LCD and LED meters. This paper presents the framework for an Internet of Things (IoT) device as an automated industrial meter reader that uploads the collected numeral data to a cloud storage for centralized data processing. The implementation of the device is done using Raspberry Pi as the platform. The device follows a four-step process-Image Acquisition using Raspberry Pi camera module, Optical Character Recognition using feature extraction technique, Internet Upload Mechanism using Google Forms and Online Data Processing using Google Spreadsheet. The performance of the device and techniques for debugging are also discussed.
Synthesis of the Mutagenic 2-Amino-1,6-dimethylimidazo[4,5-b]pyridine (1,6-DMIP) and Five of Its Isomers (1994)

Synthetic routes to 2-amino-1,6-dimethylimidazo[4,5-blpyridie and its 1 5 , 1,7-, 3 5 , 3.6-and 3.7dimethyl isomers from methyl derivatives of 3-hydroxy-or 2-amino-pyridine and 2-chloronicotinic acid are described.Pyridine and imidazopyridine derivatives show various biological activities: analgesic, sedative, antiinflammatory, herbicidal, etc., and thus are widely used in the pharmaceutical and agrochemical industry.'2-Amino-l-methyl-6-phenylimidazo[4,5-b]pie (PhIP) belongs to a group of genotoxic heterocyclic amines (HA) to which we are continuously exposed since they are present in diesel-exhaust particles, in rain water, in soil, in cigarette smoke condensate, and in cooked foods.2A great deal of effort has been devoted to developing analytical methods for the detection and efficient extraction of these environmental pollutants from complex mixtures.3Synthetic samples of the HA are required for reference purposes in analytical studies, for animal experiments, for biological assays, and often for their unequivocal identifications.For instance, the identity of PhIP could not be determined unambiguously by spcctroscopic methods because of the Limited amount available.Thus, PhIP and its much less mutagenic 3-methyl isomer were synthesized and compared with the sample isolated.4Similarly, the 6-methyl analogue of PhIP (2-amino-1,6-dimethylimidazo[4.5-b]pyridine, 1,CDMIP) (lb) was suspected to be among the mutagenic HA found in cooked foods.5Its structure was later confumed by comparison with a synthetic sample.6As part of a programme dealing with the synthesis of the HA,'-^ with studies on their binding to hiomolecules as well as their structure-activity relationships,10 we now wish to report the synthesis of the six dimethyl 2-aminoimidazopyridines (1) and (2).
Neutral Ti Complexes as Catalysts for the Hydroamination of Alkynes and Alkenes: Do the Labile Ligands Change the Catalytic Activity? (2008)

Abstract A detailed comparison between three four‐coordinate Ti complexes featuring the general bidentate ligand [ η 5 ‐(C 5 H 4 )‐SiMe 2 ‐N t Bu] 2– and two ligands X (NMe 2 , Me, Cl) as catalyst precursors ( I – III ) for the intermolecular hydroamination of alkynes and the intramolecular hydroamination of alkenes is presented. The results strongly suggest that the catalytically active species are only identical for reactions performed with the bis(dimethylamido) complex I or the dimethyl complex II . Under the reaction conditions, the labile ligands X are proteolytically removed by the reacting amine to form catalytically active imido or amido complexes, together with dimethylamine or methane. Although both catalyst precursors can be used successfully for many substrate combinations, the preparative and kinetic studies clearly indicate that dimethylamine, which is formed from the bis(dimethylamido) catalyst precursor I and the reacting amine, is able to convert the catalytically active imido or amido complexes back into the catalyst precursor and therefore inhibits the reactions. As a consequence, the bis(dimethylamido) catalyst precursor I shows a poorer catalytic performance than the corresponding dimethyl complex II . Additionally, it is shown that the dichloro complex III is only a suitable catalyst precursor for selected hydroamination reactions. Corresponding reactions that are more difficult to achieve – such as reactions of diarylalkynes or amino alkenes – do not work efficiently with this complex. A possible explanation for this observation is the finding that the dichloro catalyst precursor III is obviously converted into a different catalytically active species. This can happen if the [η 5 ‐(C 5 H 4 )‐SiMe 2 ‐N t Bu]‐ligand system of the catalyst precursor is being destroyed and removed from the Ti center under the reaction conditions.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Methyl Pyropheophorbide-<i>a</i>Analogues:  Potential Fluorescent Probes for the Peripheral-Type Benzodiazepine Receptor. Effect of Central Metal in Photosensitizing Efficacy (2005)

Pyropheophorbides and their metal complexes were synthesized to investigate their applications as nonradioactive peripheral benzodiazepine receptor (PBR) binding probes and photosensitizers for use in photodynamic therapy. They were found to be localized in mitochondria and showed significant binding to PBR. In some cases, the PBR binding values were similar to that for 17 (PK11195, 1-(2-chlorophenyl)-N-methyl-N-(1-methylpropyl)isoquinoline-3-carboxamide). However, no direct correlation between 17 displacement ability and photosensitizing efficacy of photosensitizers was observed.
Attenuation of aliased coherent noise: modelbased attenuation for complex dispersive waves (2011)

To achieve an improved understanding of near surface seismic data, Claudio Strobbia, Alexander Zarkhidze, Roger May, John Quigley and Phil Bilsby of WesternGeco present a model-based approach to source-generated coherent noise attenuation.
Therapeutic strategies to prevent hypoglycemia using pharmacologic interventions (2012)

On average, a person with type 1 diabetes has at least two symptomatic hypoglycemia episodes per week and therefore, hypoglycemia poses a significant psychologic and pathologic barrier to achieving optimal glucose control. Recurrent hypoglycemia can diminish the symptomatic, hormonal and cognitive responses during further hypoglycemia, by causing the normal glycemic thresholds for these responses to hypoglycemia to be shifted to lower glucose levels and so leading to impaired hypoglycemia awareness (IHA). Intact awareness is crucial to both recognizing and treating hypoglycemia before it becomes sufficiently severe to affect cognition and threaten consciousness. One of the main strategies for improving this response clinically is through strict avoidance of hypoglycemia. The pharmacologic approaches that may improve counter-regulatory responses and symptomatic responses are reviewed, through modulation of the responses either by addressing a cell defects in the pancreas or by approaching central defects of counter-regulation and the various glucose-sensing mechanisms that operate during hypoglycemia.
Congestion control strategies in ATM networks (1992)

Abstract Asynchronous Transfer Mode (ATM) is a promising technique to implement the Broad‐band ISDN. When bursty sources are considered, high network efficiency can be obtained by taking advantage of statistical multiplexing. This technique requires to monitor the user behavior, in order to guarantee that the actual traffic parameters do not exceed the maximum values compatible with the required Grade of Service. The paper reviews the major results on the analysis of the control mechanisms. In particular, the three following issues are considered. The Connection Admission Control for both homogeneous and heterogeneous traffic sources is analyzed and the performance of different approaches are compared. The Leaky Bucket mechanism is studied for the Usage Parameter Control and its performance, such as reaction and recovery time, are analyzed. The traffic shaping function is considered in both cases of availability and non availability of a feedback on the traffic sources. The effectiveness of this functionality is investigated.
Detecting and predicting of abnormal behavior using hierarchical Markov model in smart home network (2010)

In this paper, we present an application of the hierarchical hidden Markov model (HHMM) for the problem of predicting the state of human behavior in a smart home network. We argue that to robustly model and recognize sequential human activities, it is crucial to exploit both the natural hierarchical decomposition and shared semantics embedded in a ubiquitous environment. To this end, we propose the use of the HHMM, a rich stochastic model that has recently been extended to handle shared structures, for representing and recognizing a set of complex indoor activities. The main contributions of this paper lie in the application of the shared structure HHMM, the estimation of the state of a user's behavior, and the detection of abnormal behavior. The user behavior data from an experiment show that directly modeling shared structures improves the recognition efficiency and prediction accuracy for the state of a human's behavior when compared with a flat HMM.
Properties of Chemical Vapor Deposited Tungsten Silicide Films Using Reaction of  WF 6 and Si2 H 6 (1987)

Tungsten silicide films were formed by the chemical vapor deposition method using the reaction and . The deposition rate, resistivity, composition, stress, crystal structure, and content of impurities were studied and compared with tungsten silicide films deposited by reaction of and . The tungsten silicide films made using have a higher deposition rate and higher Si concentration than those made by using at the same substrate temperature. For these reasons, the tungsten silicide films made by using were found to have a resistivity that is a little higher and, after annealing, a stress that is smaller than that made by . Also, the resistance of tungsten silicide to peeling is larger than that of the film made by using . The crystal structure of the films made by is almost the same as that made by ; however, a tetragonal structure easily forms even in Si‐rich films of . Content of fluorine in films made by is smaller than that in films made by .
Neutralization of Endotoxin by a Phospholipid Emulsion in Healthy Volunteers (2005)

Phospholipid emulsion attenuates the clinical and laboratory effects associated with the administration of LPS in humans, suggesting a novel approach to the treatment of endotoxemia.
Progesterone and estrogen are potential mediators of gastric slow-wave dysrhythmias in nausea of pregnancy (1996)

Women in pregnancy experience nausea, which correlates with gastric slow-wave rhythm disruption. Mediators of these dysrhythmias were explored. To quantitate slow-wave disruption, eight pregnant women with first-trimester nausea underwent electrogastrography after a 250-kcal meal. Results were compared with nonpregnant women with nausea during a prior pregnancy who received estradiol and/or progesterone to levels of the first trimester of pregnancy. Five pregnant women exhibited dysrhythmias, with increases in combined recording time in tachygastria plus bradygastria, as well as decreases in the percentage of electrogastrography signal power in the normal 3 cycle/min range (cpm), compared with nonpregnant women (P<0.05). Estradiol did not evoke dysrhythmias in nonpregnant women; however, progesterone induced increases in recording time in bradygastria plus tachygastria and increases in bradygastric signal power with corresponding decreases in signal power in the 3-cpm range (P<0.05). With estradiol and progesterone coadministration, an additive effect was observed at 3.3 +/- 0.8 h, with increased recording time in bradygastria alone and in bradygastria plus tachygastria with corresponding increases in bradygastric signal power and decreases in power in the 3-cpm range (P<0.05). In conclusion, women with nausea of pregnancy exhibit slow-wave rhythm disruption. Similar dysrhythmias are evoked in nonpregnant women by progesterone alone or in combination with estradiol in doses that reproduce levels in pregnancy. Thus gastric dysrhythmias in pregnancy may be due to a combination of elevated progesterone and estrogen levels.
Systematic investigation of amorphous transition-metal-silicon-nitride electrodes for metal gate CMOS applications (2005)

Select amorphous metals (transition-metal-silicon-nitride: TaSiN, MoSiN, HfSiN, TiSiN), were systematically evaluated for their electrical (effective work function) and physical (XRD, HRTEM, HAADF-STEM, EELS) properties. Effective work function values spanning 4.16 to 4.8 eV were observed for these materials after a 1000/spl deg/C anneal and on both SiO/sub 2/ and Hf based high-k dielectrics, making them attractive candidates for future generation CMOS metal gates.
Loss of IL-7 Receptor α on CD4+ T Cells Defines Terminally Differentiated B Cell-Helping Effector T Cells in a B Cell-Rich Lymphoid Tissue (2007)

IL-7 plays important roles in development and homeostatic proliferation of lymphocytes. IL-7 uses a receptor composed of IL-7Ralpha (CD127) and the common gamma-chain (CD132) to transmit its signal. It has been unknown how CD127 is regulated during Th cell differentiation to the B cell-helping T cell lineage. In this study, we report that loss of CD127 defines terminally differentiated B cell-helping effector T cells in human tonsils. Although naive CD4(+) T cells uniformly express CD127, the memory/effector (non-FOXP3(+)) CD4(+) T cells are divided into CD127(+) and CD127(-) cells. The CD127(-) T cells are exclusively localized within the germinal centers where B cells become plasma and memory B cells, whereas CD127(+) T cells are found in T cell areas and the area surrounding B cell follicles. Consistently, the CD127(-) T cells highly express the B cell zone homing receptor CXCR5 with concomitant loss of CCR7. Compared with CD127(+) memory T cells, CD127(-) T cells have considerably shorter telomeres, do not proliferate in response to IL-7, and are prone to cell death. The CD127(-) T cells produce a large amount of the B cell follicle-forming chemokine CXCL13 upon stimulation with B cells and Ags. Most importantly, they are highly efficient in helping B cells produce Igs of all isotypes in a manner dependent on CD40L and ICOS and inducing activation-induced cytidine deaminase and Ig class switch recombination. The selective loss of CD127 on the B cell-helping effector T cells would have implications in regulation and termination of Ig responses.
Bank Lending Policy, Credit Scoring, and the Survival of Loans (2004)

To evaluate loan applicants, banks increasingly use credit scoring models. The objective of such models typically is to minimize default rates or the number of incorrectly classified loans. Thereby they fail to take into account that loans are multiperiod contracts, for which reason it is important for banks not only to know if but also when a loan will default. In this paper a bivariate tobit model with a variable censoring threshold and sample selection effects is estimated for (1) the decision to provide a loan or not and (2) the survival time of granted loans. The model proves to be an effective tool to separate applicants with short and with long survival times. The bank's loan provision process is shown to be inefficient: loans are granted in a way that conflicts with both default risk minimization and survival time maximization. There is thus no trade-off between higher default risk and higher return in the lending policy.
Evidence of increased levels of substance P in obese children. (1989)

The authors report plasma substance P levels in obese children and healthy controls. Obese children showed significantly higher substance P values in comparison with controls. A positive correlation was found between substance P levels and percentage of weight increment.
Preventing Cardiovascular Disease and Diabetes (2006)

Excess body weight has become a major public health problem in the U.S., with nearly two-thirds of adults either overweight or obese (1). The steady gain in the prevalence of obesity over the last 25 years has affected our entire population—no racial or ethnic group, no region of the country, and no socioeconomic group has been spared (2). Perhaps most worrisome is the observation that the rise in the rate of obesity has been greatest in children and minorities, which suggests that future generations of Americans, and our fastest growing populations, may bear the ultimate burden of this condition (3).

Overweight or obesity results in a wide range of elevated risk factors and many fatal and nonfatal conditions (4). Paradoxically, although we have witnessed decades in which heart disease and stroke have steadily declined and cancer mortality has at worse remained stable (5), the prevalence of diabetes has soared (6). The increase in diabetes can largely be attributed to weight gain (7,8), and it threatens the enormous advances in disease prevention we have seen (3,9,10).

Among individuals with diabetes, cardiovascular disease (CVD) is the leading cause of morbidity and mortality (9,11); adults with diabetes have a two- to fourfold higher risk of CVD compared with those without diabetes (12,13). Diabetes is also accompanied by a significantly increased prevalence of hypertension and dyslipidemia (14).

It …
Double-sided cooling for high power IGBT modules using flip chip technology (2002)

A new technique for the packaging of IGBT modules has been developed. The components are sandwiched between two DBC (direct bond copper) substrates with aluminum nitride. Wire bonds are replaced with flip chip solder bumps, which allows to cool components on both sides. Microchannel heat sinks are directly integrated in the package to decrease the thermal resistance of the module. Thus, a very compact module with high thermal performance is obtained. A prototype with two IGBTs (insulated gate bipolar transistor) and four diodes associated in parallel was realised and tested. In this paper, the innovative packaging technique is described, and results of thermal tests are presented.
Mittlere Ringe, XVIII. Die Synthese von ω‐[2‐Carboxy‐phenyl]‐fettsäuren durch nitrosierende Spaltung von Derivaten des α‐Tetralons (1961)

Abstract Die Alkylierungsprodukte des α‐Tetralon‐β‐carbonsäureesters mit ω‐Brom‐fettsäureestern werden nach Verseifung, Decarboxylierung und erneuter Veresterung mit Äthylnitrit und Natriumäthylat gespalten. Die primären Oximino‐Verbindungen gehen mit salpetriger Säure in Ketodicarbonsäureester über, die nach Wolff ‐ Kishner zu ω‐[2‐Carboxy‐phenyl]‐fettsäuren (I, n = 5, 6, 7, 8, 10, 11, 13) reduziert werden.