gebhart/patrepeval huggingface dataset:
Surface Free Energy Components of Clay-Synthetic Humic Acid Complexes from Contact-Angle Measurements (1991)

Abstract The surface free energy components of clay-organic complexes were determined to assess to what extent an organic adsorbate modified the surface properties of the mineral, insofar as the stability of soil aggregates is concerned. Adsorption isotherms for two synthetic, humic acid-like polymers were determined on a Ca-montmorillonite. From contact-angle measurements performed on dry surfaces, the surface free energy properties of the clay-organic complexes were determined using the two-liquid-phases method (water and hydrocarbons). This method allows both the dispersive and nondispersive components of the solid surface free energy, γ D S and γ P S , to be determined. The results show that a very small amount of polymer (1% by weight) adsorbed on the external surfaces of the montmorillonite decreased markedly the surface free energy components of the clay: γ D S decreased from 75 to 28 mJ/m 2 for polycondensate catechol (PC) and from 75 to 30 mJ/m 2 for polycondensate catechol triglycine (PCT), whereas γ P S ranged from 35 to 16 mJ/m 2 (PC) and from 35 to 17 mJ/m 2 (PCT). Although their chemical compositions were different, both polymers similarly modified γ D S and γ P S . Increasing the amount of polymer adsorbed (from 1% to 3.5% by weight) affected mostly γ P S , which became as low as 5 mJ/m 2 ; meanwhile, γ D S decreased from 30 to 23 mJ/m 2 . Possibly, the molecular orientation of the adsorbate changed in the process of dehydration. Following adsorption of synthetic humic acid-like polymers, dry Ca-montmorillonite complexes displayed γ S values &lt; 50 mJ/m 2 , which were consistent with the solid-water contact angles measured in air.
A semantic event approach to enrich device-free indoor localization data (2018)

Device-free indoor localization technologies can achieve fine-grained localization and have the advantage of being non-intrusive. However, interpreting the low-level data produced by these technologies can be challenging. In this paper, we investigate the application of stream reasoning technologies to enrich and exploit such data. In particular, we are interested in the semantic fusion of events coming from various ambient sensors (door sensors, smart plugs, motion sensors...), including a ceiling-mounted Pyroelectric InfraRed (PIR) sensor array that provides accurate multi-user positioning on a 2D plane. We show how existing stream reasoning technologies can be used to detect complex events, such as the movements and actions of multiple users in a real environment. These events represent useful information which can later be used for human-centered use cases, such as detecting activities or abnormal user behavior.
A New Procedure for Lifetime Prediction of N-Channel MOS-Transistors using the Charge Pumping Technique (1988)

A new procedure is proposed for a reliable lifetime prediction of MOS-transistors under hot-carrier stressing. This procedure is based on the measurement of the charge pumping current increase during the degradation. Unlike procedures based on threshold voltage (or transconductance) shifts, the new method is shown to be a better monitor for the hot-carrier degradation and is applicable for a wider range of stress conditions. It is also demonstrated that the procedure provides a more reliable lifetime prediction, especially under alternating stress conditions or under low-frequency dynamic stress conditions. >
Multimodal Locomotion Control of Needle-Like Microrobots Assembled by Ferromagnetic Nanoparticles (2022)

Microrobots have great potential for multiple applications, such as targeted drug delivery and micromanipulation. Several kinds of microrobots assembled by nanoparticles have been proposed by researchers. However, they are difficult to adapt for complex environments, for example, traversing porous materials or climbing over obstacles. Many such environments require multimodal motion control. In this article, we proposed a needle-like microrobot assembled by ferromagnetic nanoparticles, which enables three types of locomotion, defined as axial motion, lateral motion, and rolling motion. The influence of velocities by input frequencies and the lengths of the microrobots are investigated theoretically and experimentally. Moreover, visual feedback path-following control methods are designed for each motion type, and experimentally verified. The needle-like microrobots enable traversing the nonwoven layer of a clinical mask and a seaweed silk barrier by axial motion, which showed a separation and a reaggregation during the traversing process. The needle-like microrobots with rolling motion are capable of climbing over obstacles, which expands its motion scene from 2-D to 3-D. They can overcome even higher obstacles by assembling themselves to form the longer needle-like microrobots. We further expect that with the proposed multimodal motion control of nanoparticle microrobots, they may achieve complex tasks at the microscale.
Enhancement of catalytic activity through orthometalation. Synthesis, structure, and catalytic activity of a new orthometalated ruthenium complex (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnhancement of catalytic activity through orthometalation. Synthesis, structure, and catalytic activity of a new orthometalated ruthenium complexLarry N. LewisCite this: J. Am. Chem. Soc. 1986, 108, 4, 743–749Publication Date (Print):February 1, 1986Publication History Published online1 May 2002Published inissue 1 February 1986https://pubs.acs.org/doi/10.1021/ja00264a028https://doi.org/10.1021/ja00264a028research-articleACS PublicationsRequest reuse permissionsArticle Views634Altmetric-Citations75LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Simulation of Nonpolar p-GaN/i-N/n-GaN Solar Cells (2012)

It is well known that nitride-based devices suffer the polarization effects. A promising way to overcome the polarization effects is growth in a direction perpendicular to the c -axis (nonpolar direction). Nonpolar devices do not suffer polarization charge, and then they have a chance to achieve the high solar efficiency. The understanding of the solar performance of non-polar InGaN-based solar cells will be interesting. For a pin non-polar solar cell with GaN p- and n-cladding layers, the conduction band offset (or barrier height, ) between an intrinsic layer and n-GaN layer is an important issue correlating to the efficiency and fill factor. The efficiency and fill factor will be seriously degraded due to sufficiently high barrier height. To reduce a high barrier height, some graded layers with an energy bandgap between the energy bandgap of n-GaN and In x Ga 1−x N intrinsic layer can be inserted to the interface of n-GaN and In x Ga 1-x N layers. From simulation, it indicates that the insertion of graded layer is an effective method to lower energy barrier when there exists a high energy band offset in non-polar nitride devices.
Thyrotropin-Releasing Hormone (TRH) Action in Mouse Thyrotropic Tumor Cells in Culture: Evidence against a Role for Adenosine 3′,5′-Monophosphate as a Mediator of TRH-Stimulated Thyrotropin Release* (1980)

It has been suggested that TRH stimulation of TSH release is mediated by the adenylate cyclase-cAMP system. To determine whether cAMP is a necessary intracellular messenger for TRH stimulation of TSH release, we have performed detailed studies of the TRH effect employing a nearly homogeneous population of mouse thyrotropic tumor cells in culture. Dibutyryl cAMP, methylisobutylxanthine, and cholera toxin caused an increase in TSH release which was additive to that of TRH. TRH stimulated TSH release in a dose-dependent fashion; half-maximal stimulation occurred at approximately 0.6 nM but had no effect on total intracellular cAMP levels measured in the presence or absence of methylisobutylxanthine. There was no correlation between total intracellular cAMP levels and TSH release after 1 h. Moreover, there was no effect of TRH on protein kinase-bound or total intracellular cAMP levels at 1, 5, or 60 min of incubation. Lastly, TRH had no effect on adenylate cyclase activity in homogenates of thyrotropic cells in the presence or absence of guanylylimidodiphosphate. These results suggest that stimulation of TRH release by TRH from these cells does not involve cAMP as an intracellular messenger.
The Role of Human Factors in Older Worker Retention: What do we Know and what will we Need to Know? (2009)

In less than two years the oldest of the baby boom cohort will begin to turn 65 and the projected mass exodus of the older workforce will begin—or will it? With the recent change in the economy and loss of trillions of dollars in retirement savings, many older workers will most likely need to work slightly longer than expected. Additionally, companies will be in need of retaining their most experienced employees or they will need to recruit experienced workers from other places. The goal of this discussion panel is to provide the latest data on ways we can utilize human factors and ergonomics interventions to retain older workers. Panel discussants are divided between industry and academia, and they will address: 1) issues related to common injuries of the older worker and ways to reduce them, 2) work factors significant to the retention of older workers, and 3) retaining older workers who have disabilities.
Equational unification and its application in formal verification of cryptographic protocols (2004)

The goal of cryptographic protocols is to provide secure communication, and after one time running of a protocol is finished, some accomplishments should be achieved. These accomplishments may include: a key is shared secretly between two authentic users; a user is successfully convinced of the identity of another user; etc. However, if a cryptographic protocol is not designed correctly, it may fail to accomplish the goal it is designed to accomplish. Security flaws can be subtle and hard to find. 
Formal verification of cryptographic protocols intends to give rigorous and thorough means of protocol analysis so that even the subtlest error of a protocol can be found. Most versions of the state-based approach towards formal cryptographic protocol analysis is based on Dolev and Yao model. Their model of intruder activity does not consider any algebraic property of cryptographic primitives, making the perfect encryption assumption: that is, the cryptosystems are free of any properties except that encryption and decryption with the same key cancel each other out. The NRL Protocol Analyzer (NPA) by Catherine Meadows that this thesis is inspired by is also based on the Dolev-Yao model, but it extends it in many ways, and in particular, relaxes the perfect encryption assumption. Currently, the NPA exploits the state exploration facility by simple unification in combination with equational unification using a narrowing procedure (Narrowing is a procedure that is used to find solutions with respect to a set of terminating rewrite rules). 
We study equational unification problems with respect to five theories capturing properties of modular multiplication and exponentiation operations that are used in many modern cryptographic algorithms and could not be represented using terminating rewrite systems. For two of these theories, algorithms of equational unification are given, whereas for the remaining three theories, equational unification problems are proved to be undecidable. 
As a byproduct, we develop a new algorithm for computing strong Grobner bases for right ideals in Z , an algebraic structure similar to a polynomial ring over the integers, except that the indeterminates do not commute.
Optical Structure Recognition Software To Recover Chemical Information: OSRA, An Open Source Solution (2009)

Until recently most scientific and patent documents dealing with chemistry have described molecular structures either with systematic names or with graphical images of Kekulé structures. The latter method poses inherent problems in the automated processing that is needed when the number of documents ranges in the hundreds of thousands or even millions since graphical representations cannot be directly interpreted by a computer. To recover this structural information, which is otherwise all but lost, we have built an optical structure recognition application based on modern advances in image processing implemented in open source tools, OSRA. OSRA can read documents in over 90 graphical formats including GIF, JPEG, PNG, TIFF, PDF, and PS, automatically recognizes and extracts the graphical information representing chemical structures in such documents, and generates the SMILES or SD representation of the encountered molecular structure images.
A fair cognitive Channel Allocation method for cellular networks (2009)

Rapid growth in the consumer base for mobile services against the backdrop of limited spectrum demands intelligent networks for optimum utilization of the allocated spectrum with minimal changes in the existing infrastructure. This paper introduces a novel three stage predictive channel allocation scheme called Intelligent Channel Allocation (ICA) based on long term call statistics, instantaneous call statistics and event driven decisions supported by cognitive radio techniques for an opportunistic but fair usage of spectrum. The scheme realizes a trade-off between enhanced spectrum utilization in moderate call traffic conditions and fast response to emergency situations modeled by a step input in call attempts. Experimental simulations show that the proposed scheme is superior to the existing schemes in emergency situations while providing a comparable performance with the existing hybrid channel allocation schemes at moderate call traffic levels making it very relevant for unforeseen situations.
Distributed Model Predictive Control of satellite attitude using hybrid reaction wheels and magnetic actuators (2012)

Reaction wheels are used by satellite attitude control system to deliver precise torque to orientate the satellite. Mechanical failure of reaction wheel(s) will result in reconfiguration to hybrid control system to employ the magnetic actuators in place of the faulty reaction wheel(s). A Distributed Model Predictive Control (DMPC) scheme is proposed in this paper. The proposed approach updates the reactive torque and magnetic torque at different sampling time, allowing the system to react to disturbances sooner which takes into account the toggling of magnetic actuators to prevent interference with the magnetic sensors onboard a satellite. Simulation results based on an experimental satellite have validated the performance of the proposed method.
Connexin-43 gap junctions are involved in multiconnexin-expressing stromal support of hemopoietic progenitors and stem cells (2000)

Gap junctions (GJs) provide for a unique system of intercellular communication (IC) allowing rapid transport of small molecules from cell to cell. GJs are formed by a large family of proteins named connexins (Cxs). Cx43 has been considered as the predominantly expressed Cx by hematopoietic-supporting stroma. To investigate the role of the Cx family in hemopoiesis, we analyzed the expression of 11 different Cx species in different stromal cell lines derived from murine bone marrow (BM) or fetal liver (FL). We found that up to 5 Cxs are expressed in FL stromal cells (Cx43, Cx45, Cx30.3, Cx31, and Cx31.1), whereas only Cx43, Cx45, and Cx31 were clearly detectable in BM stromal cells. In vivo, the Cx43-deficient 14.5- to 15-day FL cobblestone area-forming cells (CAFC)-week 1-4 and colony-forming unit contents were 26%-38% and 39%-47% lower than in their wild-type counterparts, respectively. The reintroduction of the Cx43 gene into Cx43-deficient FL stromal cells was able to restore their diminished IC to the level of the wild-type FL stromal cells. In addition, these Cx43-reintroduced stromal cells showed an increased support ability (3.7-fold) for CAFC-week 1 in normal mouse BM and 5-fold higher supportive ability for CAFC-week 4 in 5-fluorouracil-treated BM cells as compared with Cx43-deficient FL stromal cells. These findings suggest that stromal Cx43-mediated IC, although not responsible for all GJ-mediated IC of stromal cells, plays a role in the supportive ability for hemopoietic progenitors and stem cells. (Blood. 2000;96:498-505)
Parents’ experiences caring for children with acute otitis media: a qualitative analysis (2022)

Our findings provide insight into symptoms of AOM that cause parents concern and motivate the use of healthcare services. Parents differed in their abilities to observe and report symptoms of AOM. Thus, when interviewing parents who are concerned their preverbal child has AOM, rather than focusing on ear tugging and fever alone, providers should ascertain all unusual behaviors observed by the parent.
Nitrous oxide emissions associated with ammonia‐oxidizing bacteria abundance in fields of switchgrass with and without intercropped alfalfa (2019)

The nitrogen (N) fertilizer required to supply a bioenergy industry with sufficient feedstocks is associated with adverse environmental impacts, including loss of oxidized reactive nitrogen through leaching and the production of the greenhouse gas nitrous oxide (N<sub>2</sub> O). We examined effects on crop yield, N fate and the response of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) to conventional fertilizer application or intercropping with N-fixing alfalfa, for N delivery to switchgrass (Panicum virgatum), a potential bioenergy crop. Replicated field plots in Prosser, WA, were sampled over two seasons for reactive nitrogen, N<sub>2</sub> O gas emissions, and bacterial and archaeal ammonia monooxygenase gene (amoA) counts. Intercropping with alfalfa (70:30, switchgrass:alfalfa) resulted in reduced dry matter yields compared to fertilized plots, but three times lower N<sub>2</sub> O fluxes (≤ 4 g N<sub>2</sub> O-N ha<sup>-1</sup> d<sup>-1</sup> ) than fertilized plots (12.5 g N<sub>2</sub> O-N ha<sup>-1</sup> d<sup>-1</sup> ). In the fertilized switchgrass plots, AOA abundance was greater than AOB abundance, but only AOB abundance was positively correlated with N<sub>2</sub> O emissions, implicating AOB as the major producer of N<sub>2</sub> O emissions. A life cycle analysis of N<sub>2</sub> O emissions suggested the greenhouse gas emissions from cellulosic ethanol produced from switchgrass intercropped with alfalfa cultivation would be 94% lower than emissions from equivalent gasoline usage.
Drug Target Identification and Prioritization for Treatment of Ovine Foot Rot: AnIn SilicoApproach (2016)

Ovine foot rot is an infection of the feet of sheep, mainly caused by Dichelobacter nodosus. In its virulent form, it is highly contagious and debilitating, causing significant losses in the form of decline in wool growth and quality and poor fertility. Current methods of treatment are ineffective in complete eradication. Effective antibiotic treatment of foot rot is hence necessary to ensure better outcomes during control phases by reduction in culling count and the possibility of carriers of the infection. Using computational approaches, we have identified a set of 297 proteins that are essential to the D. nodosus and nonhomologous with sheep proteins. These proteins may be considered as potential vaccine candidates or drug targets for designing antibiotics against the bacterium. This core set of drug targets have been analyzed for pathway annotation to identify 67 proteins involved in unique bacterial pathways. Choke-point analysis on the drug targets identified 138 choke-point proteins, 29 involved in unique bacterial pathways. Subcellular localization was also predicted for each target to identify the ones that are membrane associated or secreted extracellularly. In addition, a total of 13 targets were identified that are common in at least 10 pathogenic bacterial species.
In situgrazing incidence small-angle x-ray scattering real-time monitoring of the role of humidity during the structural formation of templated silica thin films (2004)

The role of RH (relative humidity) during the formation of templated silica thin films has been investigated using real-time grazing incidence small-angle x-ray scattering. A detailed analysis of the evolution of the lattice parameters as a function of RH is presented. It is shown that in the modulable steady state, the lattice parameter parallel to the surface is pinned after a transient regime is reached while the parameter normal to the surface can still vary. In the initial stage we find that the film can take up to one layer of water per micelle. Interferometric measurements confirm that swelling occurs in the entire film. An explanation of the pinning effect is presented.
Investigation of matrix metalloproteinase‐1 −1607 1G/2G polymorphism in a Turkish population with periodontitis (2008)

On the basis of the results, no significant association is found for the MMP-1 -1607 1G/2G polymorphism with susceptibility to periodontitis. Moreover, smoking status did not seem to affect this result.
Influence of Nitrogen Ion-Implantation Energy on the Wear Resistance of Silicon Nitride Ceramics with Different Microstructures (2005)

Silicon nitride ceramics with different microstructures were N+ ion-implanted at energies ranging from 50 to 400keV. Wear tests of these ion-implanted materials were carried out using a Block-on-Ring wear tester under non-lubricated conditions. Specific wear rates varied according to ion energy and these results were explained by the fact that the amorphized region varied dependent on ion energy.
Diversity and Relevance in Social Search. (2011)

We propose the use of social features in studying diversity. The surge of social network engagements has led to growing insights on how an individual’s connections view the world via opinions, likes, status updates, and their own connections. In information seeking scenarios that require sensemaking, these social signals can be leveraged to increase the diversity of search results and summarize one’s network view on the query topic by pivoting on various social cues such as friend circle, expertise, and affinity. This position paper makes the case for incorporating social cues as a diversification tool and through user scenarios discusses the interplay between social cues and the sensemaking process.