gebhart/patrepeval huggingface dataset:
Living Copolymerization of Ethylene with Styrene Catalyzed by (Cyclopentadienyl)(ketimide)titanium(IV) Complex−MAO Catalyst System (2005)

The copolymerization of ethylene with styrene by Cp*TiCl2(N=CtBu2) (Cp* = C5Me5) took place in a living manner in the presence of methylaluminoxane (MAO) cocatalyst, although the homopolymerization of neither ethylene nor styrene proceeded in a living manner. Both the cyclopentadienyl fragment (Cp') and the anionic donor ligand (X) in Cp'TiCl2(X) directly affect the copolymerization behavior, the catalytic activities, as well as the styrene incorporation; only the above set showed a living copolymerization. No styrene repeating units were observed in the resultant poly(ethylene-co-styrene)s, suggesting that a certain degree of the styrene insertion inhibited the chain transfer in this catalysis.
Data warehouse maintenance under concurrent schema and data updates (1999)

Summary form only given. Data warehouses (DW) are built by gathering information from several information sources (IS) and integrating it into one repository customized to users' needs. ISs are typically owned by different information providers and hence are independent and autonomous. This implies they will update their data and schemas independently and without any concern for how this may affect the DW defined upon them. Hence, solutions for data warehouse maintenance are needed that can handle such IS updates. We have developed a first comprehensive solution that successfully tackles this problem (X. Zhang et al., 1998). In particular, to guarantee the correctness of concurrent view definition evolution and view extent maintenance of a data warehouse, we introduce a framework called the SDCC (Schema change and Data update Concurrency Control) system. SDCC integrates various algorithms designed to address different individual view maintenance subproblems into one system, such as algorithms for view extent maintenance after IS data updates, for view definition evolution after IS schema changes, and for view extent adaptation after view definition changes.
The Pax6b Homeodomain Is Dispensable for Pancreatic Endocrine Cell Differentiation in Zebrafish (2010)

Pax6 is a well conserved transcription factor that contains two DNA-binding domains, a paired domain and a homeodomain, and plays a key role in the development of eye, brain, and pancreas in vertebrates. The recent identification of the zebrafish sunrise mutant, harboring a mutation in the pax6b homeobox and presenting eye abnormalities but no obvious pancreatic defects, raised a question about the role of pax6b in zebrafish pancreas. We show here that pax6b does play an essential role in pancreatic endocrine cell differentiation, as revealed by the phenotype of a novel zebrafish pax6b null mutant and of embryos injected with pax6b morpholinos. Pax6b-depleted embryos have almost no beta cells, a strongly reduced number of delta cells, and a significant increase of epsilon cells. Through the use of various morpholinos targeting intron-exon junctions, pax6b RNA splicing was perturbed at several sites, leading either to retention of intronic sequences or to deletion of exonic sequences in the pax6b transcript. By this strategy, we show that deletion of the Pax6b homeodomain in zebrafish embryos does not disturb pancreas development, whereas lens formation is strongly affected. These data thus provide the explanation for the lack of pancreatic defects in the sunrise pax6b mutants. In addition, partial reduction of Pax6b function in zebrafish embryos performed by injection of small amounts of pax6b morpholinos caused a clear rise in alpha cell number and in glucagon expression, emphasizing the importance of the fine tuning of the Pax6b level to its biological activity.
Analysis of High Throughput Protein Expression in Escherichia coli (2006)

The ability to efficiently produce hundreds of proteins in parallel is the most basic requirement of many aspects of proteomics. Overcoming the technical and financial barriers associated with high throughput protein production is essential for the development of an experimental platform to query and browse the protein content of a cell (e.g. protein and antibody arrays). Proteins are inherently different one from another in their physicochemical properties; therefore, no single protocol can be expected to successfully express most of the proteins. Instead of optimizing a protocol to express a specific protein, we used sequence analysis tools to estimate the probability of a specific protein to be expressed successfully using a given protocol, thereby avoiding a priori proteins with a low success probability. A set of 547 proteins, to be used for antibody production and selection, was expressed in Escherichia coli using a high throughput protein production pipeline. Protein properties derived from sequence alone were correlated to successful expression, and general guidelines are given to increase the efficiency of similar pipelines. A second set of 68 proteins was expressed to investigate the link between successful protein expression and inclusion body formation. More proteins were expressed in inclusion bodies; however, the formation of inclusion bodies was not a requirement for successful expression.
Investigation of Low-Stress Silicon Nitride as a Replacement Material for Beryllium X-Ray Windows (2012)

The material properties of low stress silicon nitride make it a possible replacement material for beryllium in X-ray windows. In this study, X-ray windows made of LPCVD deposited low stress silicon nitride are fabricated and characterized. The Young's modulus of the LPCVD low stress silicon nitride are characterized and found to be 226±23 GPa. The residual stress is characterized using two different methods and is found to be 127±25 MPa and 141±0.28 MPa. Two support structure geometries for the low stress silicon nitride X-ray windows are used. X-ray windows with thicknesses of 100 nm and 200 nm are suspended on a silicon rib support structure. A freestanding circular geometry is used for a 600 nm thick X-ray window. The 100 nm and 200 nm thick low stress silicon nitride X-ray windows with a silicon support structure are burst tested, cycling tested and leak rate tested. The average burst pressure for the 100 and 200 nm films on a silicon support structure are 1.4 atm and 2.2 atm respectively. Both 100 nm and 200 nm windows are able to withstand a difference in pressure of 1 atm for over 100 cycles with a leak rate of less than 10-10 mbar-L/s.The low stress silicon nitride with 100 nm and 200 nm thicknesses, the 600 nm freestanding low stress silicon nitride windows and freestanding 8 micron thick beryllium windows are mechanical shock resistance tested. The support structure low stress silicon nitride and beryllium windows are tested with an applied vacuum. The freestanding 600 nm thick low stress silicon nitride windows burst at 0.4 atm and are therefore mechanical shock wave tested without an applied vacuum. The support structure low stress silicon nitride windows fractured when subjected to an acceleration of roughly 5,000 g. The 8 micron thick beryllium windows are subjected to accelerations of over 30,000 g without fracturing. A quasistatic model is used to show that for low stress silicon nitride with a freestanding circular geometry, an acceleration of 106 g is required to have the same order of magnitude of stress caused by a pressure differential of 1 atm. Low stress silicon nitride can act as a replacement for beryllium in X-ray windows, but the support geometry, residual stress, and strength of the material need to be optimized.
AlCl3-mediated regioselective migration of a methoxy group of N-methoxy-N-phenylamides to the ortho position of the phenyl ring (1989)

AlCl3-mediated decomposition of N-methoxy-N-phenylamides in dichloroethane leads to regioselective intramolecular migration of the methoxy group from the nitrogen to the ortho position of the phenyl ring via a tight ion pair intermediate.
EXPERIMENTAL HYBRID SOLAR CONCENTRATOR UNIT SYSTEM FOR SANITARY WATER (2014)

The availability of solar energy and its use for heating sanitary water is a resource that has been used since ancient times. However, current technologies allow optimization and its widespread use. In the project carried out by the National University of General Sarmiento (UNGS), it has designed an experimental system hybrid solar concentrator unit for heating water for sanitary use. This project was intended as a complement to traditional water heating for domestic use , based on a parabolic concentrator . The system was designed so that it can be used in existing conventional facilities or be installed as the primary system for heating water.All components are within the structure of the base parabolic concentrator, which allows transport and fixation. The proposed project conserves the energy consumption of a traditional water heater, develop applications and combine existing technologies in a solar tracking parabolic concentrator, so to optimize its operation. Not used the traditional flat panel, but experimented with a heat exchanger mounted in the focal zone of the concentrator. One of the main objectives of this project was to arrive at a design of an integrated product that contains all the necessary elements for operation in a single platform. This adjusted the designs and location of components achieving optimal layout of the facility, giving greater freedom in the design development and implementation of design concepts. This system will allow conventional energy saving which is normally used for purposes of domestic water heating, but plans to integrate these conventional systems. That is why we speak of a hybrid system, which uses solar energy and conventional energy (electricity or gas). Considering the average consumption that occur in a house with four people, this system can replace between 45% and 91% of the energy used for water heating use , depending on time of year and considering its application in the Argentina northwestern area. The components were sized according to the proposed operating conditions. In the case of solar energy utilization, the analysis was extended to different geographic locations of the country, analyzing performance and selecting different areas favorable for the implementation of the system. This project will lay the foundation for the future development of associated projects conducted by researchers and students of the university, such as the study of the control loops, the solar tracker system development and the possible construction of a prototype, for academic use.
Feasibility of novel four degrees of freedom capacitive force sensor for skin interface force (2012)

In this study, we developed a new four DOF force sensor for measurement of force/torque that occur between the skin and a mattress. In measurement of capacitance, the repeatability was good and it was confirmed that the sensor had characteristics that enabled the correction by linear approximation for adjustment of gain and offset. In estimation of forces/torque, we considered accuracy to be within an acceptable range.
PCR Detection of Toxoplasma gondii in Human Fetal Tissues (2003)

Primary acquisition of Toxoplasma gondii (T. gondii) in healthy male and female adults is usually an asymptomatic infection (toxoplasma infection) or results in a harmless disease (toxoplasmosis) with nonspecific symptoms including headache, myalgia, fatigue, or a flu-like condition. In some cases, enlargement of lymph nodes in different body regions because of lymphatic spread of parasites together with slight fever might mimic infectious mononucleosis.
Steal this movie - automatically bypassing DRM protection in streaming media services (2013)

Streaming movies online is quickly becoming the way in which users access video entertainment. This has been powered by the ubiquitous presence of the Internet and the availability of a number of hardware platforms that make access to movies convenient. Often, video-on-demand services use a digital rights management system to prevent the user from duplicating videos because much of the economic model of video stream services relies on the fact that the videos cannot easily be saved to permanent storage and (illegally) shared with other customers. In this paper, we introduce a general memory-based approach that circumvents the protections deployed by popular video-ondemand providers. We apply our approach to four different examples of streaming services: Amazon Instant Video, Hulu, Spotify, and Netflix and we demonstrate that, by using our technique, it is possible to break DRM protection in a semi-automated way. 1
Receptive Fields in Human Visual Cortex Mapped with Surface Electrodes (2006)

Most of our understanding of the functional organization of human visual cortex comes from lesion and functional imaging studies and by extrapolation from results obtained by neuroanatomical and neurophysiological studies in nonhuman primates. Although some single-unit and field potential recordings have been made in human visual cortex, none has provided quantitative characterization of spatial receptive fields (RFs) of individual sites. Here we use subdural electrodes implanted for clinical purposes to quantitatively measure response properties in different regions of human visual cortex. We find significant differences in RF size, response latency, and response magnitude for sites in early visual areas, versus sites in later stages of both the dorsal and ventral streams. In addition, we use this technique to estimate the cortical magnification factor in early human visual cortex. The spatial and temporal resolution of cortical surface recordings suggest that this technique is well suited to examine further issues in visual processing in humans.
Heat Transfer Organic Materials: Robust Polymer Films with the Outstanding Thermal Conductivity Fabricated by the Photopolymerization of Uniaxially Oriented Reactive Discogens (2016)

For the development of advanced heat transfer organic materials (HTOMs) with excellent thermal conductivities, triphenylene-based reactive discogens, 2,3,6,7,10,11-hexakis(but-3-enyloxy)triphenylene (HABET) and 4,4',4″,4‴,4'''',4'''''-(triphenylene-2,3,6,7,10,11-hexaylhexakis(oxy))hexakis(butane-1-thiol) (THBT), were synthesized as discotic liquid crystal (DLC) monomers and cross-linkers, respectively. A temperature-composition phase diagram of HABET-THBT mixtures was first established based on their thermal and microscopic analyses. From the experimental results, it was realized that the thermal conductivity of DLC HTOM was strongly affected by the molecular organizations on a macroscopic length scale. Macroscopic orientation of self-assembled columns in DLC HTOMs was effectively achieved under the rotating magnetic fields and successfully stabilized by the photopolymerization. The DLC HTOM polymer-stabilized at the LC phase exhibited the remarkable thermal conductivity above 1 W/mK. When the DLC HTOM was macroscopically oriented, the thermal conductivity was estimated to be 3 W/mK along the in-plane direction of DLC molecule. The outstanding thermal conductivity of DLC HTOM should be originated not only from the high content of two-dimensional aromatic discogens but also from the macroscopically oriented and self-assembled DLC. The newly developed DLC HTOM with an outstanding thermal conductivity as well as with an excellent mechanical sustainability can be applied as directional heat dissipating materials in electronic and display devices.
Obfuscation Algorithm Design Based on Fully Homomorphism (2018)

Protecting effectively integrated circuit (IC) intellectual property (IP) cores has become an urgent problem. Obfuscation is an effective measure to protect IP cores of IC design. After studying the full homomorphism algorithm and the hardware obfuscation theory, a obfuscation algorithm design scheme is proposed based on the full homomorphism. In this scheme, the feasibility of the full homomorphism method in the hardware circuit is analyzed. Then, obfuscated data selector and multiplier are implemented based on full homomorphic algorithm. Finally, the proposed hardware circuit of obfuscation algorithm are designed in the TSMC 65nm process. Experimental results show that the full homomorphism algorithm based on hardware obfuscation has the correct logic function and the encrypted output data has the better randomness.
Authority and Tenure of Elders (1975)

Ferguson, Everett (1975) "Authority and Tenure of Elders," Restoration Quarterly: Vol. 81, No. 3. This repository hosts selected Restoration Quarterly articles in downloadable PDF format. For the benefit of users who would like to browse the contents of RQ, we have included all issue covers even when full-text articles from that issue are unavailable. All Restoration Quarterly articles are available in full text in the ATLA Religion Database, available through most university and theological libraries or through your local library’s inter-library loan service.
Necrosis of the femoral head after kidney transplantation (1998)

We reviewed the medical records of 750 patients (445 men, 305 women), who had received a kidney transplant during the period 1968-1995, for any sign of necrosis of the femoral head. For post-operative immunosuppression, 374 patients had received high-dose corticosteroids (average 12.5 g during the first year post-operatively), while 376 patients had received low-dose corticosteroids (average 6.5 g during the first year post-operatively) and cyclosporin A. Survival curves according to Kaplan and Meier (J Am Stat Ass 1958: 53: 457-481) were constructed. In the high-dose steroid group, 42/374 patients (11.2%) developed femoral head necrosis, at an average of 26.2 months post-transplantation. In the low-dose steroid group, only 19/376 (5.1%) patients developed this complication, at an average of 20.5 months post-transplantation. This difference in numbers of femoral head necroses was highly significant (p < 0.005). We conclude that steroid doses should be minimized whenever feasible in post-transplant immunosuppression therapy.
Involvement of Immune Regulation in Multiple Sclerosis (2017)

Multiple sclerosis (MS) is a neurodegenerative disease characterized by neuroinflammation and demyelination that results in axon loss. Multiple sclerosis has been shown to be the result of an autoimmune response caused by a mixture of genetic and environmental factors. Dendritic cells are prominent antigen-presenting cells that interact with various molecules to regulate the immune system. The dysfunction of various features of immune regulation, including interleukins (ILs), CD4 + T cells, and suppressor of cytokine signaling (SOCS1), has been implicated in the pathogenesis of MS. T cells, particularly through the malfunction of B7-costimulatory pathways, have been shown to affect the progression of the disease. SOCS1 is important in regulating the function of T cells through its interactions with other nearby genes, especially CLEC16A, with abnormal decreases in SOCS1 expression leading to the exhibition of MS symptoms. The activation of IL-23 receptors on CD4 + T cells is pivotal to their differentiation into pathogenic T H 17 cells. Several promising compounds that downregulate gene expression of IL-23 and IL-23R have been discovered but require further investigation for efficacy and safety. Given their role in the severity and progression of MS, therapies that decrease these dysregulations may ultimately decrease symptoms and in turn improve patients’ quality of life.
A porphyrin covalent organic framework cathode for flexible Zn–air batteries (2018)

A porphyrin covalent organic framework cathode is fabricated under multiscale materials regulation for flexible Zn–air batteries.
Growth of embryonal carcinoma cells in serum-free medium. (1978)

Two mouse embryonal carcinoma cell lines, PCC.4 aza-1 and F9, have been grown in serum-free F-12 medium supplemented with Pedersen fetuin, insulin, transferrin, and 2-mercaptoethanol. This medium supports long-term growth of both cell lines. When these cells are transferred from medium containing serum to this serum-free medium, growth continues without any detectable lag. PCC.4 aza-1 grown in this medium for over 20 generations retains the capacity to differentiate in vivo. This medium appears to be a general serum-free medium for the growth of embryonal carcinoma cells.
Designing operational transconductance amplifiers for low voltage operation (2002)

To design operational transconductance amplifiers (OTAs) for high-performance applications it is necessary to use cascoded current mirrors. In low-voltage applications the standard cascoded current mirror cannot be used. The solution is to use the generalized high-swing cascoded current mirror. With these newer OTA designs it is possible to have cascoding in the design without significantly reducing the linear output voltage range. High-swing OTAs already exist. With the authors' generalized scheme, multiple cascoded OTAs can be built. They have significantly larger bandwidth for the same low-frequency gain than single cascoded OTAs, and do not sacrifice any of the linear output voltage range.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Superstrate loading effects on the circular polarization and crosspolarization characteristics of a rectangular microstrip patch antenna (1994)

The authors present the superstrate loading effect on a circularly polarized rectangular microstrip antenna. The design parameters of the superstrate-loading microstrip antenna for achieving circular polarization at the main-beam direction are discussed. The circular polarization property in the entire main-beam region is also analyzed. Next, the crosspolarization characteristics of a rectangular patch antenna due to the superstrate loading are studied. A great dependence of the copolarized and crosspolarized radiations on the superstrate permittivity and thickness is observed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Expert identification in community question answering (2010)

Community Question Answering (CQA) services enables users to ask and answer questions. In these communities, there are typically a small number of experts amongst the large population of users. We study which questions a user select for answering and show that experts prefer answering questions where they have a higher chance of making a valuable contribution. We term this preferential selection as question selection bias and propose a mathematical model to estimate it. Our results show that using Gaussian classification models we can effectively distinguish experts from ordinary users over their selection biases. In order to estimate these biases, only a small amount of data per user is required, which makes an early identification of expertise a possibility. Further, our study of bias evolution reveals that they do not show significant changes over time indicating that they emanates from the intrinsic characteristics of users.
내장 필터를 갖는 15b 고해상도 혼합형 A/D 변환기 (2017)

In this paper, we propose a high resolution A/D converter for a sensor interface that processes low frequency AC signals. A 6b SAR ADC with low power consumption and a 11b incremental ADC with high resolution are combined together to perform 15b resolution. Conventional hybrid ADC has a disadvantage that it can convert t only DC signal, but in this paper, it is possible to convert data to AC signal by increasing input range of incremental ADC. The decimation filter is implemented on-chip. The designed Hybrid ADC operates at supply voltage of 1.8V and consumes the current of 6.98uA. The OSR (oversampling ratio) is 90. And SFDR, SNDR, ENOB and FoMs are 96.59dB, 88.47dB, 14.4-bit and 139.5dB, respectively