gebhart/patrepeval huggingface dataset:
Oxidative addition of halogens to the quadruple bond of bis[bis(diphenylphosphino)methane]tetrahalodimolybdenum (halo = chloro, iodo, bromo): synthesis, structural characterization, and magnetic properties of Mo2Cl4I2(dppm)2, Mo2Br6(dppm)2, and Mo2I6(dppm)2 (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidative addition of halogens to the quadruple bond of bis[bis(diphenylphosphino)methane]tetrahalodimolybdenum (halo = chloro, iodo, bromo): synthesis, structural characterization, and magnetic properties of Mo2Cl4I2(dppm)2, Mo2Br6(dppm)2, and Mo2I6(dppm)2F. Albert Cotton, Lee M. Daniels, Kim R. Dunbar, Larry R. Falvello, Charles J. O'Connor, and Andrew C. PriceCite this: Inorg. Chem. 1991, 30, 11, 2509–2514Publication Date (Print):May 1, 1991Publication History Published online1 May 2002Published inissue 1 May 1991https://pubs.acs.org/doi/10.1021/ic00011a010https://doi.org/10.1021/ic00011a010research-articleACS PublicationsRequest reuse permissionsArticle Views82Altmetric-Citations16LEARN 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
Two-dimensional surface-emitting arrays of GaAs/AlGaAs diode lasers (1990)

• Hybrid and monolithic two-dimensional surface-emitting arrays of GaAs/AlGaAs diode lasers have been designed and fabricated. The hybrid devices consist oflinear arrays ofedge-emitting graded-index: separateconfinement-heterostructure singIe-quantum-well (GRIN-SCH-SQW) lasers mounted on a Si substrate containing integral 45 ° deflecting mirrors and microchanneIs for the flow ofcooling fluid. With this design, CWoutput powers ~120 W/cm 2 have been achieved. For quasi-CWoperation (150-j.lSec. 2 pulses), peak output powers greater than 400W/cm appear to be achievable. Two types ofmonolithic arrays-the first ofedge-emitting lasers with ex:ternalcavity deflecting mirrors adjacent to the laser facets and the second with intracavity 45 ° deflecting mirrors-have also been fabricated and tested. ARRAYS OF SEMICONDUCTOR diode lasers are of. great interest for applications that require power levels higher than single devices can attain. Development efforts to date have concentrated mainly on linear arrays of edge-emitting GaAs/AlGaAs lasers
Software change impacts-an evolving perspective (2003)

As software engineering practice evolves to respond to demands for distributed applications on heterogeneous platforms, software change is increasingly influenced by middleware and components. Interoperability dependency relationships now point to more relevant impacts of software change and necessarily drive the analysis. Software changes to software systems that incorporate middleware components like Web services expose these systems and the organizations they serve to unforeseen ripple effects that frequently result in failures. Current software change impact analysis models have not adequately addressed this trend. Moreover, as software systems grow in size and complexity, the dependency webs of information extend beyond most software engineers ability to comprehend them. This paper examines preliminary research for extending current software change impact analysis to incorporate interoperability dependency relationships for addressing distributed applications and explores three dimensional (3D) visualization techniques for more effective navigation of software changes.
Mutations in the <i>FIE</i> and <i>MEA</i> Genes That Encode Interacting Polycomb Proteins Cause Parent-of-Origin Effects on Seed Development by Distinct Mechanisms (2000)

In flowering plants, two cells are fertilized in the haploid female gametophyte. Egg and sperm nuclei fuse to form the embryo. A second sperm nucleus fuses with the central cell nucleus, which replicates to generate the endosperm, a tissue that supports embryo development. The FERTILIZATION-INDEPENDENT ENDOSPERM (FIE) and MEDEA (MEA) genes encode WD and SET domain polycomb proteins, respectively. In the absence of fertilization, a female gametophyte with a loss-of-function fie or mea allele initiates endosperm development without fertilization. fie and mea mutations also cause parent-of-origin effects, in which the wild-type maternal allele is essential and the paternal allele is dispensable for seed viability. Here, we show that FIE and MEA polycomb proteins interact physically, suggesting that the molecular partnership of WD and SET domain polycomb proteins has been conserved during the evolution of flowering plants. The overlapping expression patterns of FIE and MEA are consistent with their suppression of gene transcription and endosperm development in the central cell as well as their control of seed development after fertilization. Although FIE and MEA interact, differences in maternal versus paternal patterns of expression, as well as the effect of a recessive mutation in the DECREASE IN DNA METHYLATION1 (DDM1) gene on mutant allele transmission, indicate that fie and mea mutations cause parent-of-origin effects on seed development by distinct mechanisms.
Fabricating magnetic Co-Ni-C thin-film alloys by organometallic chemical vapor deposition (1991)

We have deposited CoxNiy-C films with a variety of compositions to verify dependence of the saturation magnetization on the composition. These experiments suggest that we can produce CoxNiy-C films with a variety of magnetic properties. The CoxNiy-C films were fabricated by ultraviolet decomposition of cobaltocene and nickelocene. We demonstrated that the photolytic decomposition of these metallocenes produces cyclopentadienyl (C5H5) species, consistent with recent studies of the energetics of the ligand metal bonds.
A 13-ENOB Second-Order Noise-Shaping SAR ADC Realizing Optimized NTF Zeros Using the Error-Feedback Structure (2018)

The noise-shaping successive approximation register (NS-SAR) analog-to-digital converter (ADC) is an emerging hybrid architecture that achieves high resolution and power efficiency simultaneously by combining the merits of the SAR ADC and the <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\Delta \Sigma $ </tex-math></inline-formula> ADC. Most prior works adopting the cascaded integrator feed-forward (CIFF) structure demonstrate inefficiency in realizing optimized noise transfer function (NTF). This paper presents a second-order NS-SAR ADC employing the error-feedback (EF) structure to realize complex NTF zeros for noise-shaping enhancement with the minimum modification to a standard SAR. It implements a low-power scaling-friendly EF path by using a passive finite impulse response (FIR) and a comparator-reused dynamic amplifier with process-voltage-temperature (PVT) tracking background calibration. Fabricated in 40-nm CMOS, the prototype chip consumes <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$84~\mu \text{W}$ </tex-math></inline-formula> when operating at 10 MS/s. The NS-SAR achieves peak Schreier FoM of 178 dB with 79-dB signal to noise and distortion ratio (SNDR) at an oversampling ratio (OSR) of 8.
Observation of radiative surface states on InP (1987)

We have observed radiative surface recombination centers on InP by low-temperature photoluminescence. The luminescence band is observed only after etched or annealed surfaces are treated with hydrofluoric acid (HF), and is not found after rinsing in deionized water. These observations and x-ray photoemission studies of the treated surfaces indicate that the recombination centers are related to the near-surface stoichiometry or to the composition of native oxide layers. The peak energy of the transition has been studied as a function of excitation power and is found to increase from 1.392 eV at low power densities to 1.404 eV and higher power densities.
Aqueous Transport of Settling Slurries (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAqueous Transport of Settling SlurriesGordon HughmarkCite this: Ind. Eng. Chem. 1961, 53, 5, 389–390Publication Date (Print):May 1, 1961Publication History Published online1 May 2002Published inissue 1 May 1961https://pubs.acs.org/doi/10.1021/ie50617a029https://doi.org/10.1021/ie50617a029research-articleACS PublicationsRequest reuse permissionsArticle Views126Altmetric-Citations14LEARN 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 options Get e-Alerts
Alterations in the p53 gene and the clonal evolution of the blast crisis of chronic myelocytic leukemia. (1989)

Molecular mechanisms responsible for the clinical progression of chronic myelocytic leukemia to its accelerated phase or to blast crisis have not been defined. We found alterations of the p53 gene (p53 is a 53-kDa nuclear protein) including deletions and rearrangements in 8 of 34 patients in blast crisis and 1 of 4 patients in the accelerated phase, but in only 1 of 38 patients in the chronic phase of chronic myelocytic leukemia. Only two other examples of p53 gene alterations were found among 203 patients with hematologic malignancies and solid tumors. Transcripts of the p53 gene were uniformly found in chronic-phase cells, but gene expression was variable in blast crisis, and transcripts were reduced or undetectable in 10 of 16 patients. Heterogeneous alterations in the structure and expression of the p53 gene appear to be relatively frequent in blast crisis and may be involved in the evolution of disease.
Intestinal Enzyme Activities in Germfree, Conventional, and Gnotobiotic Rats Associated with Indigenous Microorganisms (1978)

Various enzyme activities involved in the active transport system, glycolysis, and digestion were assayed in various parts of the gastrointestinal tracts of germfree, conventional, and gnotobiotic rats associated with indigenous bacteria. The activity levels of alkaline phosphatase, glucose 6-phosphatase, adenosine triphosphatase, and disaccharidases in the upper small intestine were highest in all parts of the gastrointestinal tracts of various kinds of gnotobiotic, conventional, and germfree rats. Alkaline phosphatase, glucose 6-phosphatase, and adenosine triphosphatase activities in the upper small intestine of germfree rats were, respectively, 2.3-, 2.9-, and 1.7-fold higher than those in conventional rats. Similar to the results of these enzymes, sucrase, maltase, trehalase, and lactase activities in the upper small intestine of germfree rats were, respectively, 1.6-, 1.5-, 2.3-, and 1.8-fold higher than those in conventional rats. In various gnotobiotic rats, enzyme activity levels were intermediate between those in germfree and conventional rats. These findings suggest that those enzymatic activities are strongly depressed by the association with the indigenous microorganisms in the epithelial mucosa of the upper small intestine of rats. The levels of pyruvate kinase, hexokinase, and lactate dehydrogenase activities were highest, respectively, in the stomach, cecum, and the upper small intestine and cecum in all parts of the gastrointestinal tracts in various kinds of gnotobiotic, conventional, and germfree rats. It was also shown that six kinds of gastrointestinal bacteria, including lactobacilli, significantly depressed the enzyme activity levels to levels between those of the germfree and conventional rats in the upper small intestine of gnotobiotic rats.
ChemInform Abstract: (PPh3)3RhCl‐Catalyzed Hydrosilylation of Unsaturated Molecules by 1,2‐Bis(dimethylsilyl)ethane: Unprecedented Rate Difference Between Two Si‐H Bonds. (1990)

Abstract RhCl(PPh 3 ) 3 catalyzes rapid hydrosilylation of ketones, olefins, and acetylenes with (I) to form monohydrosilylation products such as (III), (V) and (VII), selectively.
Performance evaluation of reliability aware photonic Network-on-Chip architectures (2012)

Network-on-Chip (NoC) is the preferred communication backbone for modern multicore chips. However, the multi-hop data transmission using wireline interconnects result in high energy dissipation and latency. Photonic interconnects have emerged as a promising alternative to the conventional metal/dielectric based on-chip wireline interconnects. Several novel architectures have been proposed using photonic waveguides as interconnects, which are capable of reducing the energy dissipation in data transfer significantly. However, the issues of reliability arising due to waveguide losses and adjacent channel crosstalk in photonic waveguides have not received much attention till date. In this paper we evaluate the performance of a photonic NoC architecture designed by segmenting the waveguides into smaller parts to limit the waveguide losses. This multi-segmented bus based photonic NoC (MSB-PNoC) architecture has been shown to provide higher levels of reliability than state-of-the-art photonic NoCs. Through detailed system level simulations in this work we demonstrate that the MSB-PNoC has a better performance and lower energy dissipation compared to the conventional mesh NoC while also providing better reliability in data transfer than other photonic NoCs.
Autonomous trajectory generation of a biped locomotive robot (1991)

Introduces a hierarchical structure for motion planning and learning control of a biped locomotive robot. In this system, trajectories are obtained for a robot's joints on a flat surface by an inverted pendulum equation and a Hopfield type neural network. The former equation is simulated for the motion of the center of gravity of the robot and the network is used for solving the inverse kinematics. A multi-layered neural networks is also used for training, walking modes by compensating for the difference between the inverted pendulum model and the robot. Simulation results show the effectiveness of the proposed method to generate various walking patterns. Next, the authors improved the system to let the robot walk on stairs. They set up two phases as a walking mode; a single-support phase and a double-support phase. Combination of these two phases yields a successful trajectory generation for the robot's walking on a rough surface such as stairs.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Symptomatic Dry Eye Treatment with Autologous Platelet-Rich Plasma (2007)

Treatment of patients suffering from significant dry eye symptoms with autologous RPR proved to be very effective, improving both patient symptoms and major clinical signs.
The primary structure and structural characteristics of Achromobacter lyticus protease I, a lysine-specific serine protease (1989)

The complete amino acid sequence of Achromobacter lyticus protease I (EC 3.4.21.50), which specifically hydrolyzes lysyl peptide bonds, has been established. This has been achieved by sequence analysis of the reduced and S-carboxymethylated protease and of peptides obtained by enzymatic digestion with Achromobacter protease I itself and Staphylococcus aureus V8 protease and by chemical cleavage with cyanogen bromide. The protease consists of 268 residues with three disulfide bonds, which have been assigned to Cys6-Cys216, Cys12-Cys80, and Cys36-Cys58. Comparison of the amino acid sequence of Achromobacter protease and other serine proteases of bacterial and mammalian origins has revealed that Achromobacter protease I is a mammalian-type serine protease of which the catalytic triad comprises His57, Asp113, and Ser194. It has also been shown that the protease has 9- and 26-residue extensions of the peptide chain at the N and C termini, respectively, and overall sequence homology is as low as 20% with bovine trypsin. The presence of a disulfide bridge between the N-terminal extension Cys6 and Cys216 close to the putative active site in the C-terminal region is thought to be responsible for the generation of maximal proteolytic function in the pH range 8.5-10.7 and enhanced stability to denaturation.
Surface Property of Polymer Films with Fluoroalkyl Side Chains (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface Property of Polymer Films with Fluoroalkyl Side ChainsY. Katano, H. Tomono, and T. NakajimaCite this: Macromolecules 1994, 27, 8, 2342–2344Publication Date (Print):April 1, 1994Publication History Published online1 May 2002Published inissue 1 April 1994https://pubs.acs.org/doi/10.1021/ma00086a060https://doi.org/10.1021/ma00086a060research-articleACS PublicationsRequest reuse permissionsArticle Views666Altmetric-Citations143LEARN 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
Ultrastructural Observations of Spermatogenesis Following Transplantation of Rat Testis Cells Into Mouse Seminiferous Tubules (1996)

The testes of busulfan-treated immunodeficient mice receiving seminiferous tubule injections of testis cells from rats were examined by light and electron microscopy. The presence of active rat spermatogenesis was verified by criteria that are known to characterize spermatogenic cells of this species. In addition, spermatogenesis from the mouse was identified as taking place in some seminiferous tubules as the result of reinitiation of spermatogenesis after busulfan treatment. Rat spermatogenesis in mouse seminiferous tubules showed the generally recognized associations of cells known to characterize stages of spermatogenesis of the rat. The Sertoli cells associated with rat spermatogenesis were identified ultrastructurally as being of mouse origin. Thus, rat spermatogenesis, which has a cycle length that is 50% longer than mouse spermatogenesis, can proceed among mouse Sertoli cells, which supposedly exert much shorter cyclic influences in concert with mouse germ cell development. Studies are needed to determine if the timing of rat spermatogenesis is controlled by the germ cells or the Sertoli cells. These observations are considered preliminary since a thorough study of somatic-germ cell relationships was not undertaken. It is concluded that a mouse Sertoli cell in the environment provided by the mouse testis can produce both mouse and rat gametes.
Design and freeform fabrication of deployable structures with lattice skins (2007)

Purpose Frontier environments – such as battlefields, hostile territories, remote locations, or outer space – drive the need for lightweight, deployable structures that can be stored in a compact configuration and deployed quickly and easily in the field. This paper seeks to introduce the concept of lattice skins is introduced to enable the design, solid freeform fabrication (SFF), and deployment of customizable structures with nearly arbitrary surface profile and lightweight multi‐functionality. Design/methodology/approach Using Duraform ® FLEX material in a selective laser sintering machine, large deployable structures are fabricated in a nominal build chamber by decomposing them into smaller parts. Before fabrication, lattice sub‐skins are added strategically beneath the surface of the part. The lattices provide elastic energy for folding and deploying the structure or constrain expansion upon application of internal air pressure. Nearly, arbitrary surface profiles are achievable and internal space is preserved for subsequent usage. Findings A set of virtual and physical prototypes are presented, along with the computational modeling approach used to design them. The prototypes provide proof of concept for lattice skins as a deployment mechanism in SFF and demonstrate the effect of lattice structures on deployed shape. Research limitations/implications The research findings demonstrate not only the feasibility of a new deployment mechanism‐based on lattice skins – for deploying freeform structures, but also the potential utility of SFF techniques for fabricating customized deployable structures. Originality/value A new lattice skin mechanism is introduced for deploying structures with nearly arbitrary surface profiles and open, usable, internal space. Virtual and physical prototypes are introduced for proof of concept, along with an optimization approach for automated design of these structures.
Defective Glucose Transport across the Blood-Brain Barrier as a Cause of Persistent Hypoglycorrhachia, Seizures, and Developmental Delay (1991)

GLUCOSE (D-glucose) is an essential fuel for the brain and many other tissues. Five glucose-transporter proteins facilitate the diffusion of glucose across lipophilic plasma membranes.1 2 3 This pr...