gebhart/patrepeval huggingface dataset:
Structural, spectral and biological studies of (E)-2-((2-(benzo[d]thiazol-2-yl)hydrazineylidene)methyl)-4,6-dibromophenol (HL) and its metal complexes of Mn(II), Cu(II), Co(II), Ni(II), and Zn(II) (2023)

In this article there are five mononuclear complexes were discovered, 1. [Mn(II)(2-BHMBP)2], 2. [Cu(II)(2-BHMBP)2], 3. [Co(II)(2-BHMBP)2], 4. [Ni(II)(2-BHMBP)2] and 5. [Zn(II)(2-BHMBP)2] utilising a Imine base ligand, HL C14H9Br2N3OS (E)-2-((2-(benzo[d]thiazol-2-yl)hydrazineylidene)methyl)-4,6-dibromophenol were prepared and structurally characterised by the FT-IR spectra (vibrational spectroscopy), Proton NMR (1H NMR) spectroscopy, Carbon NMR (13C NMR) spectroscopy, ESI- Mass, SEM, EDX, powder XRD, TGA and ESR/EPR strategies. The complexes preliminary Deoxyribonucleic acid (DNA) binding activity was investigated by electronic absorption, fluorescence and viscosity spectroscopy in the presence of Calf thymus-DNA (CT-DNA). Using the agarose gel electrophoresis method in the presence of H2O2, DNA photo cleavage studies were performed on all metal complexes. The MTT assay was utilized to assess the cytotoxicity of all the compounds against two human cancer cell lines: HeLa and MCF-7. The compounds along with ligand have been screened for antifungal activity against fungal species Candida albicans and it is found that all Complexes are more potent than free ligand.
Influence of oscillator phase noise and clipping on OFDM for terrestrial broadcasting of digital HDTV (2002)

Phase noise causes significant degradation of the performance of a high order quadrature amplitude modulation (QAM) system in conjunction with an orthogonal frequency division multiplexing (OFDM) procedure. Moreover, an OFDM signal has a non-constant envelope with large instantaneous amplitude peaks and there will be a need to limit these large variations of the signal. This paper describes a model for oscillator phase noise distortion due to the receiver tuner and presents some expressions for amplitude clipping introduced by the nonlinear high power amplifier in the transmitter and by the automatic gain control in the receiver. Our simulations show the influences on an uncoded and on a trellis-coded system for transmitting digital high-definition television (HDTV) signals.
Neural-hybrid control of systems with sandwiched dead-zones (2001)

An adaptive inverse control scheme using a hybrid controller structure and a neural network based inverse compensator, is proposed for systems with unknown sandwiched dead-zone. This neural-hybrid controller consists of an inner loop discrete-time feedback structure incorporated with an adaptive inverse using a neural network for the unknown dead-zone, and an outer-loop continuous-time feedback control law for achieving the desired output tracking. The dead-zone compensator consists of two neural networks, one used as an estimator of the sandwiched dead-zone function and the other for the compensation itself. The weights of the two neural networks are tuned using a modified gradient algorithm. Simulation results are given to illustrate the performance of the proposed neural-hybrid controller.
EOSC and SSHOC - the Belgian Link (2020)

This dataset contains a presentation with a state of play regarding the involvement of Belgian projects in the social and human sciences with the European projects SSHOC and EOSC. The presentation was prepared for an event organized by Department of Economy, Science and Innovation (EWI) of the Flemish government, Belgian Science Policy (Belspo) and the Directorate General of Higher Education, Lifelong Learning and Scientific Research (DGENORS) of the Fédération Wallonie-Bruxelles.
Regioselective Borylation of the C–H Bonds in Alkylamines and Alkyl Ethers. Observation and Origin of High Reactivity of Primary C–H Bonds Beta to Nitrogen and Oxygen (2014)

Borylation of aliphatic C-H bonds in alkylamines and alkyl ethers to form primary aminoalkyl and alkoxyalkyl boronate esters and studies on the origin of the regioselectivity of these reactions are reported. The products of these reactions can be used directly in Suzuki-Miyaura cross-coupling reactions or isolated as air-stable potassium trifluoroborate salts. Selective borylation of the terminal C-H bond at the positions β to oxygen and nitrogen occurs in preference to borylation of the other terminal C-H bonds. Experimental studies and computational results show that C-H bond cleavage is the rate-determining step of the current borylation reactions. The observed higher reactivity of C-H bonds at the terminal position of ethylamines and ethers results from a combination of attractive Lewis acid-base and hydrogen-bonding interactions, as well as typical repulsive steric interactions, in the transition state. In this transition state, the heteroatom lies directly above the boron atom of one boryl ligand, creating a stabilizing interaction between the weak Lewis acid and Lewis base, and a series of C-H bonds of the substrate lie near the oxygen atoms of the boryl ligands, participating in a set of weak C-H···O interactions that lead to significant stabilization of the transition state forming the major product.
Wideband DS-CDMA for next-generation mobile communications systems (1998)

Wideband wireless access based on direct sequence code division multiple access aimed at third-generation mobile communications systems is reviewed. W-CDMA is designed to flexibly offer wideband services which cannot be provided by present cellular systems, with various data rates as high as 2 Mb/s. The important concept of W-CDMA is the introduction of intercell asynchronous operation and the pilot channel associated with individual data channels. Intercell asynchronous operation facilitates continuous system deployment from outdoors to indoors. Other technical features of W-CDMA include fast cell search under intercell asynchronous operation, fast transmit power control, coherent spreading code tracking, a coherent RAKE receiver, orthogonal multispreading factor forward link, and variable-rate transmission with blind rate detection. The introduction of the data-channel-associated pilot channel allows W-CDMA to support interference cancellation and adaptive antenna array techniques that can significantly increase the link capacity and coverage. This article presents the radio link performance evaluated by computer simulation. Field experiment radio link performance results are also presented.
Adjunctive Corticosteroid Therapy in the Treatment of Coccidioidal Meningitis (2017)

Coccidioidal meningitis (CM) has high morbidity, and adjunctive measures to improve outcomes are needed. Using an established multicenter retrospective cohort study of CM (N = 221), we found that patients receiving adjunctive corticosteroids had a significant reduction in secondary cerebrovascular events (P = .0049). Those with CM-associated cerebrovascular events (8%) may benefit from short-term corticosteroids.
A framework of an ultra-precision roller machining equipment for the fabrication of patterned microstructured optics (2012)

Patterned microstructured surfaces are widely adopted in advanced optics applications such as LED backlight guide, which can be fabricated by precision roller embossing. Ultra-precision rollers with microstructured patterns are key components for the precision roller embossing process. However, ultra-precision roller is not only difficult to be fabricated due to the heavy load and high precision requirements, but is also expensive in terms of its manufacturing cost. This paper presents a framework for research and development of an ultra-precision roller machining equipment for the fabrication of ultra-precision rollers for the precision embossing of microstructured optics applications. The framework includes the machine design concepts and key technologies, such as the machine mechanical configuration, development breakdown, and some key technologies including roller cutting mechanism, tool path planning and generation, pattern mapping from plane to roller, cutting tool position setup and error analysis, etc. Compared with the existing equipments for ultra-precision roller machining, the designed machine equipment aims to be high precision which can be produced in a low cost. This allows the equipment can be potentially used in mass production to support optical-electro-mechanical industries in Mainland China.
Proteus: a reconfigurable computational network for computer vision (2003)

The Proteus architecture is a highly parallel MIMD, multiple instruction, multiple-data machine, optimized for large granularity tasks such as machine vision and image processing. The system can achieve 20 Giga-flops (80 Giga-flops peak). It accepts data via multiple serial links at a rate of up to 640 megabytes/second. The system employs a hierarchical reconfigurable interconnection network with the highest level being a circuit switched Enhanced Hypercube serial interconnection network for internal data transfers. The system is designed to use 256 to 1024 RISC processors. The processors use one megabyte external Read/Write Allocating Caches for reduced multiprocessor contention. The system detects, locates, and replaces faulty subsystems using redundant hardware to facilitate fault tolerance.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
A single gold particle as a probe for apertureless scanning near‐field optical microscopy (2001)

We report on the fabrication, characterization and application of a probe consisting of a single gold nanoparticle for apertureless scanning near-field optical microscopy. Particles with diameters of 100 nm have been successfully and reproducibly mounted at the end of sharp glass fibre tips. We present the first optical images taken with such a probe. We have also recorded plasmon resonances of gold particles and discuss schemes for exploiting the wavelength dependence of their scattering cross-section for a novel form of apertureless scanning near-field optical microscopy.
Sustainable Graphene Aerogel as an Ecofriendly Cell Growth Promoter and Highly Efficient Adsorbent for Histamine from Red Wine (2019)

The utilization of a sustainable and lightweight graphene aerogel (GA), synthesized from crude biomass, as a cell growth promoter and an adsorbent for the efficient removal of histamine (HIS), a food toxicant, from the real food matrix has been explored. Due to the self-supported three-dimensional nanoporous honeycomb-like structure of the graphene framework and the high surface area, the synthesized GA achieved an 80.69 ± 0.89% removal of HIS from red wine (spiked with HIS) after just 60 min under both acidic (3.0) and neutral (7.4) pH conditions. Furthermore, simple cleaning with 50% ethanol and deionized water, without any change in weight, allowed them to be reused more than 10 times with a still significant HIS removal ability (more than 71.6 ± 2.57%). In vitro cell culture experiments demonstrated that the synthesized GA had nontoxic effects on the cell viability (up to 80.35%) even at higher concentrations (10 mg mL–1), as determined via the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase assays using human lung bronchial epithelial cells. Interestingly, GA promotes the wound-healing ability on the scratched epithelial cell surfaces via enhancing the cell migrations as also validated by the western blot analysis via expression levels of epithelial β-catenin and E-cadherin proteins. The distinct structural advantage along with the nontoxicity of the green synthesized GA will not only facilitate the economic feasibility of the synthesized GA for its practical real-life applications in liquid toxin and pollutant removal from the food and environment but also broaden its applicability as a promising biomaterial of choice for biomedical applications.
Rare Nivolumab-associated Super Hyper Progressive Disease in Patients With Advanced Gastric Cancer (2021)

Our proposed super HPD was likely to represent a true HPD, with a frequency of 7.7%.
Active Sites in Sn-Beta for Glucose Isomerization to Fructose and Epimerization to Mannose (2014)

Framework Lewis acidic tin sites in hydrophobic, pure-silica molecular sieves with the zeolite beta topology (Sn-Beta) have been reported previously to predominantly catalyze glucose−fructose isomerization via 1,2 intramolecular hydride shift in water and glucose–mannose epimerization via 1,2 intramolecular carbon shift in methanol. Here, we show that alkali-free Sn-Beta predominantly isomerizes glucose to fructose via 1,2 intramolecular hydride shift in both water and methanol. Increasing extents of postsynthetic Na+ exchange onto Sn-Beta, however, progressively shifts the reaction pathway toward glucose–mannose epimerization via 1,2 intramolecular carbon shift. Na+ remains exchanged onto silanol groups proximal to Sn centers during reaction in methanol solvent, leading to nearly exclusive selectivity toward epimerization. In contrast, decationation occurs with increasing reaction time in aqueous solvent and gradually shifts the reaction selectivity to isomerization at the expense of epimerization. Decationation and the concomitant selectivity changes are mitigated by the addition of NaCl to the aqueous reaction solution. Preadsorption of ammonia onto Sn-Beta leads to near complete suppression of infrared and 119Sn nuclear magnetic resonance spectroscopic signatures attributed to open Sn sites and of glucose−fructose isomerization pathways in water and methanol. These data provide evidence that Lewis acidic open Sn sites with either proximal silanol groups or Na-exchanged silanol groups are respectively the active sites for glucose–fructose isomerization and glucose–mannose epimerization.
Overlapping High-Resolution Copy Number Alterations in Cancer Genomes Identified Putative Cancer Genes in Hepatocellular Carcinoma (2010)

A standardized genome-wide CNA analysis protocol using data from user-generated or public domains normalized with unpaired reference genomes has been established to facilitate high-throughput detection of cancer genes as significant target genes and biomarkers for cancer diagnosis and therapy.
Invited research overview (2006)

In the past few decades there has been considerable work on empowering end users to be able to write their own programs, and as a result, users are indeed doing so. In fact, we estimate that over 12 million people in American workplaces would say that they "do programming" at work, and almost 50 million people use spreadsheets or databases (and therefore may potentially program), compared to only 3 million professional programmers. The "programming" systems used by these end users include spreadsheet systems, web authoring tools, business process authoring tools such as Visual Basic, graphical languages for demonstrating the desired behavior of educational simulations, and even professional languages such as Java. The motivation for end-user programming is to have the computer be useful for each person's specific individual needs. While the empirical study of programming has been an HCI topic since the beginning the field, it is only recently that there has been a focus on the End-User Programmer as a separate class from novices who are assumed to be studying to be professional programmers. Another recent focus is on making end-user programming more reliable, using "End-User Software Engineering." This paper gives a brief summary of some current and past research in the area of End-User Programming.
Sudden Onset of Pitting Corrosion on Stainless Steel as a Critical Phenomenon. (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.
A simple proof of a theorem of Karrass and Solitar (2005)

In this note we give a particularly short and simple proof of the following theorem of Karrass and Solitar. Let $H$ be a finitely generated subgroup of a free group $F$ with infinite index $[F:H]$. Then there is a nontrivial normal subgroup $N$ of $F$ such that $N\cap H = \{1\}$.
Investigating Self-Homodyne Coherent Detection in a 19-core Spatial-Division-Multiplexed Transmission Link (2012)

We investigate the performance of self-homodyne coherent system based on 19*SDM and 16*WDM channels. We show that self-homodyne detection, with pilot-tone transmitted on 1 MCF core, is compatible with SDM transmission systems but inter-core crosstalk can limit potential advantages.
Automatic implantable defibrillator for the patient with recurrent refractory malignant ventricular arrhythmias: case report. (1982)

Clinically, the first line of treatment for patients experiencing potentially lethal arrhythmias includes antiarrhythmic medications and/or treatment of underlying causes such as ischemia or congestive heart failure. However, if the treatment is not successful in controlling the arrhythmia, the automatic implantable defibrillator is a viable alternative for the prevention of sudden death in these patients. The case report presents one example of how the automatic implantable defibrillator can supplement conventional medical therapy when success in suppressing recurrent arrhythmias cannot be obtained. This concept has been demonstrated in this 59-year-old woman who underwent several medication trials in an attempt to control her life-threatening arrhythmias.
Patch antenna array configuration for application in FD-MIMO systems (2013)

In this paper we present a practical 2-Dimensional (2D) active antenna array configuration for Full Dimension MIMO (FD-MIMO) systems. The basic antenna element is a 1H × 4V (i.e. 1 element in the horizontal and 4 in the vertical direction), patch antenna array referred to as sub-array, fed with a single port. The MIMO array is comprised of 8H × 4V such sub-arrays spaced at 0.5λH x 2λV, with a total of 32 ports. The antenna covers the 2.496–2.69GHz band with return loss > 12dB. The sub-array element has a gain of about 11.7dBi (including the 1.5dB feed network loss). To this end, with this particular configuration our calculations carried out by 3-Dimensional Spatial Channel Model (3D SCM) show that we can achieve about 3.1 times cell average throughput gain and 4.3 times cell edge throughput gain compared to the 4G LTE system of 2 antenna ports at the base station.
278 EFFECTS OF LEPTIN ON IN VITRO DEVELOPMENT AND GENE EXPRESSION IN PORCINE EMBRYOS (2005)

Recent evidence suggests that leptin is an important signal in female reproduction, including control of ovarian function (Brann et al . 2002 Steroids 67, 95-104). Leptin receptor transcripts are presented in various cell types of humans, rats, and pigs. However, the results have been contradictory on the role of leptin in embryo development. The objective of this study was to determine the effects of different concentrations of leptin during porcine oocyte maturation on subsequent embryo development and expression of genes related to leptin signal transduction or apoptosis. Porcine oocytes were matured for 44 h in TCM-199 with the addition of leptin at 0 (control), 10, 50, 100, and 200 ng/mL (leptin 10, 50, 100, and 200 groups, respectively), and subsequently fertilized with frozen thawed semen (1 × 105 sperm/mL) in mTBM. Presumptive zygotes were then cultured in NCSU-23 medium. Cleavage and blastocyst rates (in seven replicates) were assessed on Days 2 and 7 (the day of IVF was defined as Day 0), respectively. The total cell number in blastocysts was counted and the number of apoptotic cells was determined by TUNEL. Expression of genes encoding leptin receptor (LEPR), cytoplasmic transcription factor (STAT3), pro-apoptotic (Bax), and anti-apoptotic (Bcl2) regulators in blastocysts were determined by quantitative reverse transcription-polymerase chain reaction (RT-PCR). The percentage of MII oocytes (in four replicates) was significantly ( P &amp;lt; 0.05) higher in 50 and 100 groups than in the others [80 (216/270) and 84% (236/280) vs. 70 (158/224), 74 (172/230), and 75% (186/248) in the 0, 10, and 200 groups, respectively]. Oocytes matured in the 50 and 100 groups showed a significantly ( P &amp;lt; 0.05) greater proportion of cleaved embryos than those in the other groups [82 (368/448) and 84% (380/451) vs. 71 (339/476), 76 (358/470), and 74% (327/441) in 0, 10, and 200 groups, respectively]. Furthermore, the rate of blastocyst formation at Day 7 was significantly ( P &amp;lt; 0.05) higher in the leptin 100 group than in the other groups [29% (131/451) vs. 18 (86/476), 23 (109/470), 20 (90/448), and 22% (98/441) in control and leptin 10, 50, and 200 groups, respectively]. Increased cell number and reduced proportion of apoptotic cells were observed in blastocysts originating from the oocytes matured in the presence of 100 ng/mL leptin. Depending on the concentrations used in the maturation medium, leptin increased LEPR, STAT3, and Bcl2 mRNA levels and reduced the Bax mRNA level in blastocysts. The results indicate that addition of leptin at 100 ng/mL during oocyte maturation improved embryonic development with up-regulation of LEPR, STAT3, and Bcl2 genes and suppression of the Bax gene, and thus optimizes the in vitro culture systems for porcine embryos. This work was supported by Grant No. 1000520040020000 from Biogreen 21, Republic of Korea.
Ocular Coherence Tomography and Diabetic Eye Disease (2010)

Optical Coherence Tomography (OCT) is a high-resolution, cross-sectional imaging technique that allows detailed assessment of retinal thickness and morphologic evaluation of the neurosensory retinal layers. OCT imaging has rapidly been integrated into diagnosis and management of diabetic macular edema (DME) in routine clinical practice and clinical trials. OCT findings correlate well with other evaluation techniques for DME. Although there is a moderate correlation between OCT measured retinal thickness and visual acuity, OCT cannot replace visual acuity because there is a high degree of variability. Recent improvements in OCT technology have led to widespread interest in the use of spectral domain OCT, which is faster and has higher resolution than time domain OCT. Future research in OCT imaging will likely result in improvements in image quality. The ability to combine OCT with other various diagnostic modalities will further improve the evaluation of DME in both clinical practice and trials.
Tandem Catalysis by Lipase in a Vinyl Acetate‐Mediated Cross‐Aldol Reaction (2011)

Abstract The lipase Novozym435 (0.6% w/w) was used in tandem with organocatalysts in a first vinyl/isopropenyl acetate‐mediated aldol reaction. The reaction was facilitated through the lipase‐catalyzed in situ generation of acetaldehyde/acetone. The important features of the present methodology include the mild and facile reaction conditions, regenerability of the lipase, comparatively high yields and minimal side product formation.
Application of High Pressure Torsion to Bulk Samples (2006)

High pressure torsion (HPT) is a well-known procedure to impart severe plastic deformation (SPD) into metallic materials. It was reported that HPT produces grain sizes finer than those using other SPD processes such as equal-channel angular pressing (ECAP). However, the application of HPT has been restricted to thin disk samples. In this study, an HPT process was developed for use with bulk samples. This process is designated as Bulk-HPT for comparison with conventional Disk-HPT. Cylindrical samples of an Al-3%Mg-0.2%Sc alloy having dimensions of 10 mm in diameter and 8.6 mm in height were prepared for Bulk-HPT. The samples were strained under a pressure of 1 GPa for 2 turns at room temperature. Microstructural observations revealed that the samples contained regions having a grain size of ~130 nm. Tensile testing showed a superplastic ductility ~480 % at 673 K with an initial strain rate of 3.3x10-2 s-1.