gebhart/patrepeval huggingface dataset:
Comparative Ultrastructure of Pectoralis Fibers from Electrically Stimulated and Muscle-Tensioned Broiler Carcasses (1995)

Transmission electron microscopy was used to study the ultrastructural changes induced by high voltage post-mortem electrical stimulation (ES) (440 V, 1 A, 5 pulses of 2 s on and 1 s off) and muscle tensioning (MT) (during chilling) in broiler chicken Pectoralis harvested at 1 h post-mortem. Control fibers lacked I-bands and H-zones. Electrical stimulation reduced sarcomere shortening and inhibited Z-line dissolution. Muscle tensioning pulled M-lines apart and allowed the disappearance of Z-line protein during aging. Combining ES and MT inhibited Z-line dissolution and caused wrinkling associated with passive contraction. All ES + MT fields had intact M-lines. The results suggested that there were similarities and differences in the ultrastructural effects of ES in broiler Pectoralis and red meat muscles.
Analyzing energy savings in an FPGA video processing system using dynamic partial reconfiguration (2019)

Dynamic Partial Reconfiguration (DPR) can be a useful tool for maximizing FPGA performance while minimizing power consumption and FPGA size requirements. This work explores the application of the DPR technique in a computer vision application that implements two different edge detection algorithms (FASTX and Sobel). This technique could allow for a similar computer vision system to be realized on a smaller, low-power chipset. Different algorithms can have unique characteristics that yield better performance in certain scenarios; the best algorithm for the current scenario may change during runtime. However, implementing all available algorithms in hardware increases the space and power requirements of the FPGA. We analyze a system that can load an individual edge detection algorithm into the computer vision processing pipeline with negligible interruptions to data processing by using DPR. This application targets the Xilinx UltraScale+ ZCU106 and is able to maintain the same functionality while using an average of 4% less energy when compared to the non-DPR implementation. Additionally, the FPGA utilization for this application is 15% less than that of the traditional implementation that includes both algorithms on the chip at once. These results demonstrate that this technique could allow a similar computer vision system to be realized on a smaller, low-power chipset.
A MODIFIED NINHYDRIN REAGENT FOR THE PHOTOMETRIC DETERMINATION OF AMINO ACIDS AND RELATED COMPOUNDS (1954)

A modified ninhydrin reagent for the photometric determination of amino acids and related compounds , A modified ninhydrin reagent for the photometric determination of amino acids and related compounds , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
Effect of Strength and Thickness on Notch Ductility (1970)

For a number of years, standards and code-writing bodies have been attempting to specify fracture toughness in terms of the Charpy V-notch rather than the Charpy keyhole test because various investigators have shown that V-notch test results correlate much better with service experience. However, the change to V-notch specifications has been deterred by uncertainty concerning the best criterion for establishing transition temperatures and the effect of strength and thickness on transition temperatures. Therefore, five steels covering a wide range of yield and tensile strengths (ABS-C: 39/63, A302-B: 56/88, HY-80: 81/99, A517-F: 121/134, and HY-130: 140/148) were tested as quarter-, half-, single-, and double-width (QW, HW, SW, and DW) Charpy V-notch specimens in the longitudinal and transverse directions and with through-thickness and surface notches. Transition temperatures were determined for various energy-absorption, lateral-expansion, and fracture-appearance criteria. The results showed that energy-absorption criteria for determining transition temperature should increase with strength to ensure a constant notch ductility. Thus the best method for determining transition temperature was the direct measurement of lateral expansion. Of the lateral-expansion criteria evaluated, the 15 mil value agreed best with fracture-mechanics considerations. The average increase in transition temperature was 60 F from QW to HW specimens, 26 F from HW to SW specimens, and 2 F from SW to DW specimens. This indication of maximum constraint for the SW specimen was not consistent with the effects produced when the standard V-notch was replaced with a fatigue crack. Consequently, the size of the Charpy test specimen that should be used for evaluating thick plates has not been established and requires additional study. The effects of strength and thickness on transition temperature were much larger than the effects of testing direction, notch location, or notch acuity. The results indicate that, of the various criteria for evaluating the Charpy V-notch impact-test performance of structural steels, lateral expansion is the best criterion for compensating for the important effects of steel strength and plate thickness. Moreover, its validity is supported by fracture-mechanics concepts.
Deubiquitinating Enzymes are IN(Trinsic to Proteasome Function) (2004)

Covalent conjugation of the ubiquitin tag to cellular proteins plays a central role in a number of processes, the most notable among them being degradation by the 26S proteasome. A fundamental property of this process is that ubiquitination, in contrast to subsequent degradation, is reversible due to a number of deubiquitinating enzymes that mediate the disassembly of ubiquitin-protein conjugates. The uniqueness of ubiquitin as a reversible tag necessitates mechanisms to guarantee its efficiency. Interestingly, some deubiquitinating enzymes are associated with the 26S proteasome itself. We include a brief overview of the key proteasome-associated deubiquitinating enzymes such as Rpn11/POH1, UCH37/Uch2, Ubp6/Usp14 and Doa4/Ubp4. We go on to discuss how these enzymes may contribute to, or possibly counteract, proteolysis by the proteasome. For example, cumulative evidence points to a partitioning of proteasome action between proteolysis and deubiquitination. On the one hand, inhibition of proteolysis promotes deubiquitination, while on the other hand, inhibition of deubiquitination can promote proteolysis. The plethora of deubiquitinating enzymes may serve as proof reading devices altering the equilibrium between these two processes and allowing for reversal of fortune at various stages of the process. To promote degradation over deubiquitination, certain polyubiquitin conformations could be stabilized or protected from deubiquitinating enzymes in order that they can serve as efficient targeting signals leading to the proteasome. We hypothesize that polvubiquitin chains could also serve as "timers": by slowing down chain disassembly, longer chains allow ample time for unfolding and proteolysis of the substrate.
Heavy Metal Tolerance in Stenotrophomonas maltophilia (2008)

Stenotrophomonas maltophilia is an aerobic, non-fermentative Gram-negative bacterium widespread in the environment. S. maltophilia Sm777 exhibits innate resistance to multiple antimicrobial agents. Furthermore, this bacterium tolerates high levels (0.1 to 50 mM) of various toxic metals, such as Cd, Pb, Co, Zn, Hg, Ag, selenite, tellurite and uranyl. S. maltophilia Sm777 was able to grow in the presence of 50 mM selenite and 25 mM tellurite and to reduce them to elemental selenium (Se(0)) and tellurium (Te(0)) respectively. Transmission electron microscopy and energy dispersive X-ray analysis showed cytoplasmic nanometer-sized electron-dense Se(0) granules and Te(0) crystals. Moreover, this bacterium can withstand up to 2 mM CdCl(2) and accumulate this metal up to 4% of its biomass. The analysis of soluble thiols in response to ten different metals showed eightfold increase of the intracellular pool of cysteine only in response to cadmium. Measurements by Cd K-edge EXAFS spectroscopy indicated the formation of Cd-S clusters in strain Sm777. Cysteine is likely to be involved in Cd tolerance and in CdS-clusters formation. Our data suggest that besides high tolerance to antibiotics by efflux mechanisms, S. maltophilia Sm777 has developed at least two different mechanisms to overcome metal toxicity, reduction of oxyanions to non-toxic elemental ions and detoxification of Cd into CdS.
Linking Brain Connectivity Across Different Time Scales with Electroencephalogram, Functional Magnetic Resonance Imaging, and Diffusion Tensor Imaging (2012)

Structural and functional connectivity are intrinsic properties of the human brain and represent the amount of cognitive capacities of individual subjects. These connections are modulated due to development, learning, and disease. Momentary adaptations in functional connectivity alter the structural connections, which in turn affect the functional connectivity. Thus, structural and functional connectivity interact on a broad timescale. In this study, we aimed to explore distinct measures of connectivity assessed by functional magnetic resonance imaging and diffusion tensor imaging and their association to the dominant electroencephalogram oscillatory property at rest: the individual alpha frequency (IAF). We found that in 21 healthy young subjects, small intraindividual temporal IAF fluctuations were correlated to increased blood oxygenation level-dependent signal in brain areas associated to working memory functions and to the modulation of attention. These areas colocalized with functionally connected networks supporting the respective functions. Furthermore, subjects with higher IAF show increased fractional anisotropy values in fascicles connecting the above-mentioned areas and networks. Hence, due to a multimodal approach a consistent functionally and structurally connected network related to IAF was observed.
Nuclear magnetic resonance study on ligand-metalloporphyrin complexation. Equilibriums and paramagnetism in a ferriprotoporphyrin-cyanide system (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNuclear magnetic resonance study on ligand-metalloporphyrin complexation. Equilibriums and paramagnetism in a ferriprotoporphyrin-cyanide systemJin Tsai Wang, Herman J. C. Yeh, and David F. JohnsonCite this: J. Am. Chem. Soc. 1975, 97, 7, 1968–1970Publication Date (Print):April 1, 1975Publication History Published online1 May 2002Published inissue 1 April 1975https://pubs.acs.org/doi/10.1021/ja00840a069https://doi.org/10.1021/ja00840a069research-articleACS PublicationsRequest reuse permissionsArticle Views46Altmetric-Citations9LEARN 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-Alertsclose Get e-Alerts
Red dialógica: Enseñar y aprender Geografía en América Latina (2016)

Con el objetivo de reflexionar sobre los desafios de la ensenanza y aprendizaje de la Geografia en America Latina, ofrecemos una nocion de red que proponemos como posibilidad dialogica. Convencidos que la reflexion sobre los procesos educativos se puede enriquecer si el debate involucra un enfoque comun y una discusion que da la bienvenida a la diversidad, en este articulo, hacemos una analisis de la Red Latinoamericana de Investigadores de la Didactica de la Geografia (Redladgeo) y resenamos la publicacion del libro Didactica de la geografia: practicas escolares y formacion de los profesores . Metodologicamente este estudio teorico resulta de nuestras experiencias como profesores-investigadores participantes en el grupo, y de la investigacion de teoricos de la educacion, la geografia, la historia, las ciencias sociales y la filosofia, entre otros. Organizamos el texto en partes en las que se analizan la tesitura de una red, y defendemos la escritura como la mejor manera de pensar, como se ejemplifica a traves de la publicacion del libro de la red. Estas proposiciones permiten afirmar el poder de la dialectica-dialogica de la red como una oportunidad pedagogica, en los procesos de ensenanza y aprendizaje de la Geografia.
Thrombomodulin Regulation of Mitogen-Activated Protein Kinases (2019)

The multifaceted role of mitogen-activated protein kinases (MAPKs) in modulating signal transduction pathways in inflammatory conditions such as infection, cardiovascular disease, and cancer has been well established. Recently, coagulation factors have also emerged as key players in regulating intracellular signaling pathways during inflammation. Among coagulation factors, thrombomodulin, as a high affinity receptor for thrombin on vascular endothelial cells, has been discovered to be a potent anti-inflammatory and anti-tumorigenic signaling molecule. The protective signaling function of thrombomodulin is separate from its well-recognized role in the clotting cascade, which is to function as an anti-coagulant receptor in order to switch the specificity of thrombin from a procoagulant to an anti-coagulant protease. The underlying protective signaling mechanism of thrombomodulin remains largely unknown, though a few published reports link the receptor to the regulation of MAPKs under different (patho)physiological conditions. The goal of this review is to summarize what is known about the regulatory relationship between thrombomodulin and MAPKs.
High-pressure, high-temperature synthesis of SiC–diamond nanocrystalline ceramics (2000)

Dense and entirely nanocrystalline diamond–SiC ceramics were synthesized by the infiltration of liquid Si into the nanodiamond body under high-pressure (77 kbar) and high-temperature (1400–2000 °C) conditions. Based on x-ray diffraction and transmission electron microscopy observations, a model of as-synthesized material is proposed, where individual polycrystalline diamond particles are bonded via SiC–diamond nanolayers. The nanolayers provide a very high hardness of the entire specimen up to 51 GPa. The phenomenon of self-stop Si infiltration was detected in this system. This phenomenon can be explained by the closure of pores near the boundary between molten Si and diamond nanopowder due to the formation of SiC inside the pores.
Making dentistry effective at the state level: South Carolina. (2006)

State dental associations must be responsive to the unique needs of the public and dentists in each state. The South Carolina Dental Association has a tradition of proactively partnering with the legislature and others to promote the long-range oral health of the state. Issues of access, licensure, and fair reimbursement are important concerns. SCDA has taken the lead in these areas, as well as in understanding the needs of new dentists, providing services for dentists as part of a non-dues financial structure, and advocating for the interests of individual practitioners.
Preparation for Ultrafine Particles of Fe-Ni, Fe-Cu and Fe-Si Alloys by &ldquo;Hydrogen Plasma-Metal&rdquo; Reaction (1989)

Ultrafine particles (UFP) of Fe-Ni, Fe-Cu and Fe-Si alloys were produced by arc melting, vaporization and deposition of iron alloys in 50%H2-50%Ar atmosphere (“hydrogen plasma-metal” reaction) at 0.1 MPa pressure. The morphology, chemical composition and crystal structure of particles obtained were determined by TEM observation, energy dispersion analysis for X-ray and X-ray powder diffraction.It was recognized that the chemical composition of Fe-Ni UFP was nearly identical with bulk composition. The composition of Cu in Fe-Cu UFP and Si in Fe-Si UFP remarkably deviated positively and negatively from the bulk composition, respectively. It was found that the deviation tendency of composition between UFP and bulk of alloys can be assessed by using an activity curve of alloys at the high temperature range of above 2000-2500 K.
The new wave of hospital consolidation. (2012)

Reimbursement challenges, spiraling healthcare costs, and a slow economic recovery are driving the latest wave of hospital consolidation. Health insurance companies and provider systems are forming partnerships in the consolidation field with the goal of reducing healthcare costs and improving quality. The "cost" of the acquisition may include debt and other obligations of the acquired hospital, such as pension liabilities, along with a multiyear capital commitment.
MONet: Unsupervised Scene Decomposition and Representation (2019)

The ability to decompose scenes in terms of abstract building blocks is crucial for general intelligence. Where those basic building blocks share meaningful properties, interactions and other regularities across scenes, such decompositions can simplify reasoning and facilitate imagination of novel scenarios. In particular, representing perceptual observations in terms of entities should improve data efficiency and transfer performance on a wide range of tasks. Thus we need models capable of discovering useful decompositions of scenes by identifying units with such regularities and representing them in a common format. To address this problem, we have developed the Multi-Object Network (MONet). In this model, a VAE is trained end-to-end together with a recurrent attention network -- in a purely unsupervised manner -- to provide attention masks around, and reconstructions of, regions of images. We show that this model is capable of learning to decompose and represent challenging 3D scenes into semantically meaningful components, such as objects and background elements.
Laser utilizing an Ar–Xe–NF<sub>3</sub>mixture with a discharge stabilized by a short-pulse electron beam (1979)

A study was made of an XeF laser excited with a discharge controlled by a 50-nsec pulsed electron beam. It was found that, for an appropriate choice of the discharge circuit inductance and of the shape of the electron beam current pulse, the maximum discharge power was reached while the beam current was decreasing and values of ∼106 W/cm3 or more were obtained. A high-power pump pulse was thus combined with a high plasma voltage (of the order of the charging voltage), suitable for obtaining shortduration radiation pulses. The output energy and the energy fed into the gas were determined as a function of the composition of the gas mixture, charging voltage, storage capacitance, and pressure. A specific output energy of 2.5 J/liter was obtained.
The Heterogeneity of Early Parkinson’s Disease: A Cluster Analysis on Newly Diagnosed Untreated Patients (2013)

Our results confirmed the existence of different subgroups of early PD patients. Cluster analysis revealed the presence of distinct subtypes of patients profiled according to the relevance of both motor and non-motor symptoms. Identification of such subtypes may have important implications for generating pathogenetic hypotheses and therapeutic strategies.
A Readily Available Chiral Ag-Based N-Heterocyclic Carbene Complex for Use in Efficient and Highly Enantioselective Ru-Catalyzed Olefin Metathesis and Cu-Catalyzed Allylic Alkylation Reactions (2005)

A new chiral bidentate N-heterocyclic carbene (NHC) ligand has been designed and synthesized. The NHC ligand bears a chiral diamine backbone and an achiral biphenol group; upon metal complexation (derived from Ag(I), Ru(II), or Cu(II)), the diamine moiety induces >98% diastereoselectivity such that the biaryl unit coordinates to the metal center to afford the desired complex as a single atropisomer. Because the ligand does not require optically pure biaryl amino alcohols, its synthesis is significantly shorter and simpler than the related first generation ligands bearing a chiral binaphthyl-based amino alcohol. The chiral NHC ligand can be used in the preparation of highly effective Ru- and Cu-based complexes (prepared and used in situ from the Ag(I) carbene) that promote enantioselective olefin metathesis and allylic alkylations with scope that is improved from previously reported protocols. In many cases, transformations promoted by the chiral NHC-based complexes proceed with higher enantioselectivity and reactivity than was observed with previously reported complexes.
Design of an agile manufacturing workcell for light mechanical applications (2002)

This paper introduces a design for agile manufacturing workcells intended for light mechanical assembly of products made from similar components (i.e. parts families). We define agile manufacturing as the ability to accomplish rapid changeover from the assembly of one product to the assembly of another product. Rapid hardware changeover is made possible through the use of robots, flexible part feeders, modular grippers and modular assembly hardware. The flexible feeders rely on belt feeding and binary computer vision for Dose estimation. This has a distinct advantage over non-flexible feeding schemes such as bowl feeders which require considerable adjustment to changeover from one part to another. Rapid software changeover is being facilitated by the use of a real-time, object-oriented software environment, modular software, graphical simulations for off-line software development, and an innovative dual VMEbus controller architecture. These agile features permit new products to be introduced with minimal downtime and system reconfiguration.
Biocidal Aramide Fabrics for Emergency Responders: Formation and Properties of Aramide Halamine (2007)

Poly- m-phenyleneisophthalamide fibers are widely used in production of inherently flame-retardant fabrics for firefighters' uniforms. These meta-aromatic polyamide fibers can be directly converted to biocidal halamine structures, which provide durable and rechargeable antimicrobial functions. Such a treatment on the fabrics was carefully evaluated to ensure no deleterious effects of bleaching on fabric performance. Results indicated that low crystallinity meta-aramids can undergo chlorination in high concentrations of sodium hypochlorite solutions without showing significant change in tensile strength, flammability, electrical static resisitivity, or radiant heat exposure values. These findings suggest that antimicrobial functions can be easily incorporated into fabrics containing this fiber without altering the expected short-term performance properties of the material.