gebhart/patrepeval huggingface dataset:
Catalytic Cycle for the Asymmetric Hydrogenation of Prochiral Ketones to Chiral Alcohols:  Direct Hydride and Proton Transfer from Chiral Catalysts <i>trans</i>-Ru(H)<sub>2</sub>(diphosphine)(diamine) to Ketones and Direct Addition of Dihydrogen to the Resulting Hydridoamido Complexes (2001)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTCatalytic Cycle for the Asymmetric Hydrogenation of Prochiral Ketones to Chiral Alcohols: Direct Hydride and Proton Transfer from Chiral Catalysts trans-Ru(H)2(diphosphine)(diamine) to Ketones and Direct Addition of Dihydrogen to the Resulting Hydridoamido ComplexesKamaluddin Abdur-Rashid, Michael Faatz, Alan J. Lough, and Robert H. MorrisView Author Information Department of Chemistry, University of Toronto 80 Saint George Street, Toronto Ontario M5S 3H6, Canada Cite this: J. Am. Chem. Soc. 2001, 123, 30, 7473–7474Publication Date (Web):July 7, 2001Publication History Received28 March 2001Revised13 June 2001Published online7 July 2001Published inissue 1 August 2001https://pubs.acs.org/doi/10.1021/ja015902uhttps://doi.org/10.1021/ja015902urapid-communicationACS PublicationsCopyright © 2001 American Chemical SocietyRequest reuse permissionsArticle Views3101Altmetric-Citations267LEARN 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 (2)»Supporting Information Supporting Information SUBJECTS:Alcohols,Anions,Catalysts,Ketones,Precursors Get e-Alerts
Hand Gesture Modeling and Recognition using Geometric Features: A Review (2012)

Abstract — The use of the gesture system in our daily life as a natural human-human interaction has inspired the researchers to simulate and utilize this gift in human-machine interaction which is appealing and can take place the bore interaction ones that existed such as television, radio, and various home appliances as well as virtual reality will worth and deserve its name, this kind of interaction ensures promising and satisfying outcomes if applied in systematic approach, and supports unadorned human hand when transferring the message to these devices which is more easiest, comfort and desired rather than the communication that requires frills to deliver the message to such devices, the gesturing is also important between human-human interaction especially with hearing impaired, deaf and mute peoples, in this study, we have presented different researches that done in this area regarding the geometric features which considered as a live features compared with non-geometric features which considered as blind features, and we have focused on the researches gathered to achieve this important link between human and his made machines, also we have provide our algorithms for overcome some shortcomings existed in some mentioned algorithms in order to provide a robust gesture recognition algorithm that does not have a rotation hinder which most of current algorithms have.
Regulation by exercise of the pool of G4 acetylcholinesterase characterizing fast muscles: opposite effect of running training in antagonist muscles (1990)

Fast muscles of rodents characteristically differ from their slow-twitch counterparts by exhibiting high levels of G4, i.e., the tetrameric acetylcholinesterase (AChE) molecular form. Converging evidence suggests that this additional G4 pool is specifically regulated by the type of activity actually performed by the muscle. This hypothesis was tested by studying the effect of a chronic increase in neuromuscular activity on the AChE content and distribution of molecular forms of functionally antagonist rat hindlimb muscles. They included the fast ankle extensors gastrocnemius (GAST) and plantaris (PL), the fast ankle flexors tibialis anterior (TA) and extensor digitorum longus (EDL), as well as the slow-twitch soleus (SOL). Neuromuscular activity was enhanced by subjecting the rats to a 12-week training program consisting of repeated sessions of prolonged endurance running on a rodent treadmill. This exercise regimen preferentially affected the G4 pool characterizing fast muscles which exhibited marked and opposite changes according to the functional role of the muscles. The amount of G4 was increased by more than 50% in the ankle extensors GAST and PL, which play a dynamic role, and reduced by about 40% in the ankle flexors TA and EDL, which exhibit a predominant tonic activity during running. The asymmetric forms A12 and A8 were slightly elevated in the fast muscles. In the case of the slow-twitch SOL, running training resulted in a small, nonspecific decrease in AChE content which affected most of the molecular forms. These data indicate that the size of the G4 pool characteristic of fast muscles depends on the type, dynamic or tonic, of activity actually performed. The present results support the conclusion that this G4 pool fulfills a specific and essential function, distinct from that of A12.
Kinetic inductance memory cell (1992)

A Josephson memory cell based on kinetic inductance is proposed and analyzed. The size of the cells can be as small as 1/100 that of conventional superconducting memory cells. However, the kinetic inductance memory cell cannot utilize magnetically coupled read and write circuitry. The authors propose a current injected read/write architecture.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
4-Hydroxynonenal regulates mitochondrial function in human small airway epithelial cells (2015)

Prolonged exposure to oxidative stress causes Acute Lung Injury (ALI) and significantly impairs pulmonary function. Previously we have demonstrated that mitochondrial dysfunction is a key pathological factor in hyperoxic ALI. While it is known that hyperoxia induces the production of stable, but toxic 4-hydroxynonenal (4-HNE) molecule, it is unknown how the reactive aldehyde disrupts mitochondrial function. Our previous in vivo study indicated that exposure to hyperoxia significantly increases 4-HNE-Protein adducts, as well as levels of MDA in total lung homogenates. Based on the in vivo studies, we explored the effects of 4-HNE in human small airway epithelial cells (SAECs). Human SAECs treated with 25 μM of 4-HNE showed a significant decrease in cellular viability and increased caspase-3 activity. Moreover, 4-HNE treated SAECs showed impaired mitochondrial function and energy production indicated by reduced ATP levels, mitochondrial membrane potential, and aconitase activity. This was followed by a significant decrease in mitochondrial oxygen consumption and depletion of the reserve capacity. The direct effect of 4-HNE on the mitochondrial respiratory chain was confirmed using Rotenone. Furthermore, SAECs treated with 25 μM 4-HNE showed a time-dependent depletion of total Thioredoxin (Trx) proteins and Trx activity. Taken together, our results indicate that 4-HNE induces cellular and mitochondrial dysfunction in human SAECs, leading to an impaired endogenous antioxidant response.
Feline Infectious Peritonitis: Experimental Evidence for Its Multiphasic Nature (1974)

SUMMARY Feline infectious peritonitis ( fip ) was transmitted by the subcutaneous ( sc ) and intraperitoneal ( ip ) routes. Subcutaneous inoculation of infective material resulted in lesions in many tissues, whereas ip inoculation resulted in marked peritonitis. Viral particles appeared in lesions prior to development of necrosis. Lesions also occurred in bone marrow, superficial lymph nodes, and veins in many tissues, indicating a systemic disease. Changes in body weight, rectal temperature, and absolute lymphocyte count were directly related to the course of the disease.
Lab-Grown Organs Begin to Take Shape (1999)

With the need for transplant organs and tissues growing, researchers are making progress toward developing them artificially, using cultured cells and special polymers. Two months ago a team reported in
 Nature Biotechnology that it had used tissue engineering to produce new urinary bladders that appeared to work normally in dogs. And on page
 489, researchers report growing functioning pig arteries. Less advanced, but showing progress, are efforts to engineer tissues to fill in for failing hearts, livers, and kidneys--organs for which the demand for transplants far outstrips supply.
Are IEEE 802 Wireless Technologies Suited for Fire Fighters (2006)

Ad hoc networks are considered to provide flexible and robust communication in emergency scenarios like fire fighting. However, for the time being, it is not clear how existing digital wireless communication technologies perform in environments with fire, smoke and vapour. To investigate this issue, we carried out several experiments at the training facilities of the Paris fire brigade. Our goal was to evaluate the performance of standard wireless communication systems in a real fire fighting scenario. The main result is that wireless communication is not affected much by fire and smoke but is indeed affected by vapour. Technologies operating in the 2.4 GHz frequency achieve a higher communication range than those with 5 GHz in our setup.
Synergistic action of taxol and tiazofurin in human ovarian, pancreatic and lung carcinoma cells. (1993)

Since taxol (NSC 125975) and tiazofurin (NSC 286193) attack at two different sites in microtubular synthetic processes, we tested the rationale that the two drugs might be synergistic in human ovarian (OVCAR-5), pancreatic (PANC-1) and lung carcinoma (H-125) cells and in rat hepatoma 3924A cells. In human OVCAR-5, PANC-1, H-125 and rat 3924A cells, for taxol the anti-proliferative IC50 was 0.05, 0.06, 0.03 and 0.04 microM, respectively; for tiazofurin IC50 = 8.3, 2.3, 1.8 and 6.9 microM. Thus, the concentrations for taxol required for IC50 for inhibiting cell proliferation were 166-, 38-, 60- and 173-fold lower than those for tiazofurin. Taxol and tiazofurin proved synergistic in all four cell lines tested. The synergism of taxol with tiazofurin should have implications in the clinical treatment of human solid tumors with particular relevance to ovarian, pancreatic, lung and hepatocellular carcinomas.
3-D Seismic Benefits From Exploration Through Development: An Exxon Perspective (1993)

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if the DOI has never been published anywhere online or in print and never otherwise distributed to or communicated with anyone (authors, readers, reviewers, etc.
Total peroxy nitrates (ΣPNs) in the atmosphere: the thermal dissociation-laser induced fluorescence (TD-LIF) technique and comparisons to speciated PAN measurements (2009)

Abstract. Peroxyacetyl nitrate (PAN) and its chemical analogues are increasingly being quantified in the ambient atmosphere by thermal dissociation (TD) followed by detection of either the peroxyacyl radical or the NO2 product. Here we present details of the technique developed at University of California, Berkeley which detects the sum of all peroxynitrates (ΣPNs) via laser-induced fluorescence (LIF) of the NO2 product. We review the various deployments and compare the Berkeley ΣPNs measurements with the sums of PAN and its homologue species detected individually by other instruments. The observed TD-LIF ΣPNs usually agree to within 10% with the summed individual species, thus arguing against the presence of significant concentrations of unmeasured PAN-type compounds in the atmosphere, as suggested by some photochemical mechanisms. Examples of poorer agreement are attributed to a sampling inlet design that is shown to be inappropriate for high NOx conditions. Interferences to the TD-LIF measurements are described along with strategies to minimize their effects.
Analyzing and searching process of internet username and password stored in Random Access Memory (RAM) (2015)

This paper develops a technique to gather and analyze username and password stored in a physical memory or RAM (Random Access Memory). A live memory forensic investigator is able to use this work in order to find the pattern as the “Searching Criteria” for extending the search to other artifacts. The proposed technique uses a quick search algorithm to find the data in the physical memory. By using a proposed technique to harvest username and password from some popular websites, the experiment has been tested by browsing to social network, webmail, internet banking, and some business online shopping websites. Form the artifacts recovered from the physical memory, we find many useful evidences of username and password that are stored in a plaintext format. Finally, these recover evidences can be linked to other artifact.
U bodies are cytoplasmic structures that contain uridine-rich small nuclear ribonucleoproteins and associate with P bodies (2007)

Uridine-rich small nuclear ribonucleoproteins (U snRNPs) are involved in key steps of pre-mRNA processing in the nucleus of eukaryotic cells. U snRNPs are enriched in the nucleus in discrete organelles that include speckles, Cajal bodies, and histone locus bodies. However, most U snRNPs are assembled in the cytoplasm, not in the nucleus. Despite extensive biochemical information, little is known about the spatial organization of U snRNPs in the cytoplasm. Here we show that U snRNPs in Drosophila are concentrated in discrete cytoplasmic structures, which we call U bodies, because they contain the major U snRNPs. In addition to snRNPs, U bodies contain essential snRNP assembly factors, suggesting that U bodies are sites for assembly or storage of snRNPs before their import into the nucleus. U bodies invariably associate with P bodies, which are involved in RNA surveillance and decay. Genetic disruption of P body components affects the organization of U bodies, suggesting that the two cytoplasmic bodies may cooperate in regulating aspects of snRNP metabolism. The identification of U bodies provides an opportunity to correlate specific biochemical steps of snRNP biogenesis with structural features of the cytoplasm.
Malaysian Administrative Law at the Crossroads: Quo Vadis (2009)

Malaysian Administrative Law was, until 1996, thought to be based solely on common law by concerning itself mainly with challenging the decision-making process of the administrators. In the landmark case of Tan Tek Seng in January 1996, the Court of Appeal began to invoke the doctrine of constitutional review by breathing life and great expectations into the broad and liberal interpretation of fundamental rights in the constitution whenever they are at stake as a result of governmental actions or decisions whether legislative or executive. However, the constitutional euphoria of broad interpretation was short lived as the Federal Court swiftly and decisively struck back with vengeance in Ng Hock Cheng, Sugumar Balakrishnan, and Kekatong thereby throwing constitutional review into grave doubt. Constitutional review, however, made a brief comeback in 2009 in a few Federal Court cases when the judge behind the broad interpretation of the Federal Constitution was elevated to the Federal Court. But with his retirement and departure from the Bench on 16th February 2010, the development of Administrative Law again encountered problems because very few judges have come forward to push the constitutional agenda in our public law. The writer has expounded his view into the root causes of the unsatisfactory growth and development of Malaysian Administrative Law over the last fifty-one years. However, the writer remains upbeat and hopeful over the faith and future of Malaysian Administrative law in the years ahead because of his firm belief in the rule of law and constitutionalism which will eventually triumph over time so long as the struggle to vindicate the rule of law and constitutionalism continues unabated.
A Diffusion Tensor Imaging Tractography Method Based on Navier-Stokes Fluid Mechanics (2006)

We introduce a method for estimating regional connectivity in diffusion tensor magnetic resonance imaging (DT-MRI) based on a fluid mechanics model. We customize the Navier-Stokes equations to include information from the diffusion tensor and simulate an artificial fluid flow. The velocity vector field of this fluid construct is then used as a connectivity metric. We generate probable connection paths by maximizing the fluid velocity along a path between two regions of interest while constraining its bending energy. Our method is based on a second-order nonlinear partial differential equation (PDE) and incorporates local anisotropy and similarity measurements into a viscosity term, which extends previous linear first-order methods. We tested our algorithm on a digital DTI phantom. Our method was able to correctly segment the structure of the phantom with various levels of noise, despite local distortion of the image pattern. We applied our method to DTI volumes from a normal human subject. Seed points were chosen along the corticospinal tracts, white matter regions with well-known connectivity. Our method produced paths that were consistent with both known anatomy and directionally encoded color (DEC) images of the DTI volumes. Applying our method to a digital phantom that simulates discrete white matter lesions, we also demonstrate that the fluid velocity field around areas of simulated localized white matter disruption becomes dampened and turbulent compared to the heat flow field from a first order PDE method. This provides a means for identifying lesion position from the fluid velocity field
Early experience with object-oriented message driven computing (2002)

A model of parallel computation, message-driven computing (MDC), is presented, along with a language OOMDC/C that implements it. OOMDC/C is an object-oriented version of MDC that has been implemented in a sequential version and in two parallel versions on the Encore multiprocessor, one holding the messages in shared memory and the other copying the messages between processes. It is shown that the model facilitates the use of a variety of parallel data and control structures, including Actors, distributed arrays, communicating processes, remote procedure calls, broadcast and accumulation, data flow graphs, l-structures, streams, active messages, and demand-driven dynamic programming.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Protein Kinase Cδ Deficiency Causes Mendelian Systemic Lupus Erythematosus With B Cell‐Defective Apoptosis and Hyperproliferation (2013)

Our findings indicate that PKCδ is crucial in regulating B cell tolerance and preventing self-reactivity in humans, and that PKCδ deficiency represents a novel genetic defect of apoptosis leading to SLE.
Speckle interferometry experiments with a digital photocamera (2004)

We discuss a simple experiment for detecting small deformations by speckle interferometry. The optical setup uses a laser diode for the source together with a lens to expand the laser beam and a beam splitter dividing the beam and illuminating two scattering surfaces. A low-cost, commercial charge coupled device (CCD) photocamera provides images of the two superimposed speckle fields through the beam splitter. We first take a picture with the system at rest, and then take a second one after a deformation is made in a surface. By simple subtraction of the digital pictures, we obtain a fringe pattern that gives us information about the deformation.
An integrated approach to lithologic inversion; Part I, Theory (1992)

Abstract For the complex problem of lithologic inversion a new formalism is proposed, using a spatial distribution of seismic velocities (c p , c s ) and densities (rho ) as input. At each subsurface grid point, the inversion result consists of the most likely lithotype (gas, sand, shale, etc.) together with its related litho parameters (frame strength, porosity, etc.).The inversion method is based on the Bayesian theory of parameter estimation, allowing specification of inaccuracies in the input and the incorporation of geological knowledge.An important advantage of the proposed inversion method is that for each practical situation the necessary accuracy of c p , c s and rho can be predetermined to distinguish between specific lithotypes or to estimate a specific litho parameter with a prespecified accuracy. For instance, inversion results show that water saturation can only be estimated for an unrealistic accurate input. On the other hand, for the estimation of porosities it is generally sufficient to have compressional velocities available with a realistic accuracy.
Attraction of Glischrochilus quadrisignatus (Coleoptera: Nitidulidae) to Semiochemicals: Butyl Acetate and Propyl Propionate (1986)

Journal Article Attraction of Glischrochilus quadrisignatus (Coleoptera: Nitidulidae) to Semiochemicals: Butyl Acetate and Propyl Propionate Get access Steven R. Alm, Steven R. Alm Department of Entomology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, Ohio 44691 Search for other works by this author on: Oxford Academic PubMed Google Scholar Franklin R. Hall, Franklin R. Hall Department of Entomology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, Ohio 44691 Search for other works by this author on: Oxford Academic PubMed Google Scholar Terrence P. McGovern, Terrence P. McGovern Department of Entomology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, Ohio 44691 Search for other works by this author on: Oxford Academic PubMed Google Scholar Roger N. Williams Roger N. Williams Department of Entomology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, Ohio 44691 Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 79, Issue 3, 1 June 1986, Pages 654–658, https://doi.org/10.1093/jee/79.3.654 Published: 01 June 1986 Article history Received: 12 November 1985 Accepted: 03 February 1986 Published: 01 June 1986