gebhart/patrepeval huggingface dataset:
Dynamic Action Recognition: A convolutional neural network model for temporally organized joint location data (2016)

Motivation: Recognizing human actions in a video is a challenging task which has applications in various fields. Previous works in this area have either used images from a 2D or 3D camera. Few have used the idea that human actions can be easily identified by the movement of the joints in the 3D space and instead used a Recurrent Neural Network (RNN) for modeling. Convolutional neural networks (CNN) have the ability to recognise even the complex patterns in data which makes it suitable for detecting human actions. Thus, we modeled a CNN which can predict the human activity using the joint data. Furthermore, using the joint data representation has the benefit of lower dimensionality than image or video representations. This makes our model simpler and faster than the RNN models. In this study, we have developed a six layer convolutional network, which reduces each input feature vector of the form 15x1961x4 to an one dimensional binary vector which gives us the predicted activity. Results: Our model is able to recognise an activity correctly upto 87% accuracy. Joint data is taken from the Cornell Activity Datasets which have day to day activities like talking, relaxing, eating, cooking etc.
ChemInform Abstract: Cytochalasan Synthesis: Synthesis of (17S,18S)‐17,18‐Dihydroxy‐10‐(prop‐2‐yl)‐14‐methyl‐(11)cytochalasa‐6(7),13Z,19E‐triene‐1,21‐dione, an Isomer of Aspochalasin C. (1989)

Abstract The unstable pyrrolinone (V) (NMR detection, not isolated) is subjected to Diels‐Alder cyclization in order to construct the molecule skeleton of the fungal metabolite aspochalasin C (X).
Complexes du ruthenium comportant un ligand dihydrogene etire. Proprietes spectroscopiques et application a l'activation de liaisons carbone-hydrogene (1998)

Une serie de complexes hydruro(dihydrogene) dont le ligand dihydrogene est etire a ete obtenue a partir du complexe ruh#2(h#2)#2(pcy#3)#2 $$1 ou a partir de ru(cod)(cot). Leurs syntheses et leurs caracterisations, la description de leurs proprietes spectroscopiques ainsi que leur reactivite et leur activite catalytique sont donnes dans ce memoire. Le chapitre i est une mise au point bibliographique sur l'activation de liaisons carbone-hydrogene en milieu homogene. Le chapitre ii est consacre a la synthese et a la caracterisation de complexes hydruro(dihydrogene) du ruthenium (ii), comportant deux ligands phosphine en position trans et un ligand chelatant orthometalle. Le complexe ruh(pyph)(h#2)(p#ipr#3)#2 presente en rmn des couplages d'echange quantique qui n'avaient jusqu'alors jamais ete observes pour un complexe hydruro(dihydrogene). Nous detaillons l'etude de ces couplages d'echange au cours du chapitre iii. La reactivite de ce complexe vis-a-vis de co, n#2 et o#2 est donnee au cours de ce meme chapitre. Nous presentons dans le chapitre iv la reactivite inhabituelle des complexes ruh(pyx)(h#2)(pcy#3)#2 (x = o, nh) et ruh(quo)(h#2)(pcy#3)#2 vis-a-vis du triethylvinylsilane pour donner les complexes hydruro(vinylidene) correspondants. La mise en evidence spectroscopique d'interactions de type liaison hydrogene entre l'hydrure du complexe ruh(pyo)(h#2)(pcy#3)#2 et le proton de differents alcools est egalement discutee ainsi que l'influence de cette liaison sur sa reactivite. Nous decrivons egalement au cours de ce chapitre l'utilisation du complexe $$1 comme catalyseur pour le couplage de liaisons carbone-carbone entre l'ethylene et l'acetophenone ou la benzophenone en position ortho du groupement phenyle. Les conditions experimentales utilisees ainsi que le mecanisme reactionnel sont discutes. Le dernier chapitre est consacre aux essais exploratoires effectues a l'aide des deux complexes bis(dihydrogene) $$1 et tp*ruh(h#2)#2 pour l'activation d'alcanes.
Investigation of wicking phenomenon and tensile properties in three‐layer composite nanofibrous PA/PLLA yarn (2020)

Abstract One critical property of a nanofibrous structure is the wicking behavior in contact with liquids. This work's purpose is fabrication and investigation of tensile and wicking properties of a newly designed three‐layer nanofibrous yarn consisting of polyamide 6/poly(L‐lactic acid) (PA/PLLA) with a similar idea to Bobtex spun yarn structure in which adhesion between core (PA) and sheath (PLLA) is provided with a thin layer of polymeric thin film. The tensile strength and strain decreased 32 and 46%, respectively, in a three‐layer yarn compared with two‐layer, that is, yarn without the adhesion film. In addition, the ultimate strength of the three‐layer yarn was higher than a PLLA yarn. The vertical wicking test for three‐layer nanofibrous yarn reveals that at short times, capillary rise kinetics follow the Lucas–Washburn law while increasing the take‐up velocity of the take‐up roller in yarn fabrication leads to increasing the maximum height of water in yarn.
Structures of the Intermediate Complexes in Friedel‐Crafts Acylations (1974)

Abstract Addition compounds of Lewis acids MX n and acyl halides RCOX occur as intermediates in Friedel‐Crafts acylations. IR and NMR studies on these intermediates have indicated the probable existence of structural isomers. In X‐ray structural analysis, it is possible to distinguish two forms, i.e. the molecular form, in which the compounds are present as donor‐acceptor complexes RCXO→MX n , and the ionic form, in which they can be formulated as oxocarbenium salts [RCO] + [MX n +1 ] − . The compounds of the donor‐acceptor type RCXO→MX n are characterized by the formation of a coordinate oxygen‐metal bond; the transfer of electrons from the oxygen to the metal of the acceptor is always due to a weak donor‐acceptor interaction. The positive charge of the aryloxocarbenium ions is partly delocalized over the aromatic nucleus. The positive charge in alkyloxocarbenium ions, on the other hand, is essentially localized on the carbon atom of the carbonyl group, as is confirmed by electron density distribution calculations.
Isolation, biology and chemistry of the disorazoles: new anti-cancer macrodiolides (2009)

Covering: 1994 to 2008. The disorazoles comprise a family of 29 closely related macrocyclic polyketides isolated in 1994 from the fermentation broth of the gliding myxobacterium Sorangium cellulosum. Disorazoles A1, E and C1 have shown exceptional biological activites toward inhibiting the proliferation of human cancer cell lines in picomolar and nanomolar concentrations through the disruption of microtubule polymerization. This review gives a brief introduction describing the biosynthesis and the significance of the disorazoles as a new class of microtubulin disruptors. Another portion of the review focuses on the biology of the disorazoles, specifically disorazole A1 and C1, and their antiproliferative efficacy against animal and human tumor cell lines, as well as the available SAR data. The majority of the discussion addresses synthetic efforts, including partial syntheses of various disorazoles and a summary of the total synthesis of disorazole C1.
Spaced-Antenna Interferometry to Measure Crossbeam Wind, Shear, and Turbulence: Theory and Formulation (2007)

Abstract The theory of measuring crossbeam wind, shear, and turbulence within the radar’s resolution volume V6 is described. Spaced-antenna weather radar interferometry is formulated for such measurements using phased-array weather radar. The formulation for a spaced-antenna interferometer (SAI) includes shear of the mean wind, allows turbulence to be anisotropic, and allows receiving beams to have elliptical cross sections. Auto- and cross-correlation functions are derived based on wave scattering by randomly distributed particles. Antenna separation, mean wind, shear, and turbulence all contribute to signal decorrelation. Crossbeam wind cannot be separated from shear, and thus crossbeam wind measurements are biased by shear. It is shown that SAI measures an apparent crossbeam wind (i.e., the angular shear of the radial wind component). Whereas the apparent crossbeam wind and turbulence within V6 cannot be separated using monostatic Doppler techniques, angular shear and turbulence can be separated using the SAI.
Cochlear Implantation in Chronic Otitis Media: Investigation of Long-term Speech Comprehension and Rate of Complications (2018)

Cochlear implantation in chronic otitis media can be a satisfactory and safe procedure, if the surgery technique and aftercare is appropriate to the altered anatomy.
Poly(divinylsiloxyethylene glycol). Synthesis and Resist Characteristics. (1996)

The tendency to grow smaller patterns for electronic devices has required the need to explore high performance for submicron lithography. To obtain high resolution patterns, a very thin resist film must be used. For this purpose, however, organic polymers do not have enough resistance to 02
ChemInform Abstract: Elementary Steps of Ziegler—Natta Catalyst Intermediate Formation: Incorporation of Magnesium Alkoxides with [Ti(dipp)4], Ph3Si‐OH, [AlMe3], and MCl(3)4 (M = V, Zr) (2002)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
2010 Guidelines for Antiretroviral Treatment of HIV From the International AIDS Society–USA Panel—Reply (2010)

Our website uses cookies to enhance your experience. By continuing to use our site, or clicking "Continue," you are agreeing to our Cookie Policy | Continue JAMA HomeNew OnlineCurrent IssueFor Authors Publications JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry (1919-1959) Podcasts Clinical Reviews Editors' Summary Medical News Author Interviews More JN Learning / CMESubscribeJobsInstitutions / LibrariansReprints & Permissions Terms of Use | Privacy Policy | Accessibility Statement 2023 American Medical Association. All Rights Reserved Search All JAMA JAMA Network Open JAMA Cardiology JAMA Dermatology JAMA Forum Archive JAMA Health Forum JAMA Internal Medicine JAMA Neurology JAMA Oncology JAMA Ophthalmology JAMA Otolaryngology–Head & Neck Surgery JAMA Pediatrics JAMA Psychiatry JAMA Surgery Archives of Neurology & Psychiatry Input Search Term Sign In Individual Sign In Sign inCreate an Account Access through your institution Sign In Purchase Options: Buy this article Rent this article Subscribe to the JAMA journal
Prognostic significance of dna measurements in 409 consecutive breast cancer patients (1988)

Four hundred nine consecutive breast cancer patients were studied retrospectively. Microspectrophotometric DNA measurements were performed using archival, fine-needle slide preparations upon which the primary diagnoses had been based 8 to 13 years earlier. The DNA distribution patterns of the tumor cell populations were analyzed according to various criteria and the cytochemical data were correlated to the clinical course, defined as distant recurrence-free survival. The results demonstrated a strong relationship between nuclear DNA content of the breast cancer cells and prognosis. Tumors exhibiting DNA values within the limits of normal tissues (DNA euploidy) were found to be correlated with a favorable prognosis. In contrast, tumors with increased and scattered DNA values (DNA aneuploidy) were found indicative of poor prognosis. This was found to be the case regardless whether the percentage of cells above 2.5c or 5c, DNA index/modal value, or the histogram typing according to Auer et al were utilized to discriminate low-grade from high-grade malignant cases. All of these DNA variables were also shown to be significantly correlated. With the aid of the Cox regression method, the additional prognostic value of any given variable was tested against the others. The statistical analyses showed that the histogram typing gives significant prognostic information in addition to that provided by any other variable. In conclusion, the current study demonstrates that tumor nuclear DNA content is a strong indicator of prognosis in patients suffering from invasive breast adenocarcinoma. However, the results also show that simple determination of the stemline position is not the optimal DNA measure of intrinsic tumor malignancy potential. The fraction of cells scattered outside the modal peaks of the histograms are of utmost importance for adequate cytochemical malignancy grading in breast carcinomas.
Investigation of S → T and S → S Transitions by Phosphorescence Excitation Spectroscopy VII. 1-Indanone and Other Aromatic Ketones (1970)

A detailed examination of the phosphorescence excitation spectra of three aromatic ketones, acetophenone, p-bromoacetophenone and 1-indanone, has been carried out at both 77 and 4°K. The studies of 1-indanone demonstrate the following: (1) The 0–0 band of the S0 → S(n, π*) transition is allowed and polarized perpendicular to the plane of the molecule, indicating substantial delocalization of the oxygen long-pair orbital into the aromatic ring system. (2) Most of the intensity (80%–90%) in the S0 → S(n, π*) transition is vibronically induced. (3) A strong carbonyl progression appears to be absent in the S0 → S(n, π*) absorption spectrum, and this is attributed to mixing of the carbonyl stretching mode with other vibrational modes in the excited state. (4) The S0 → T(n, π*) transition has allowed character as a result of spin–orbit interaction between the T(n, π*) state and the La1(π, π*) state. (5) The intensification of the S0 → 1Lb transition in indanone relative to acetophenone is attributed to mixing of the Lb1 state with the La1 state induced by orthosubstitution. The introduction of La1 character into the Lb1 state is also responsible for the intensification of the S0 → T(n, π*) transition in indanone relative to acetophenone. (6) The 0–0 band of the S0 → T(π, π*) transition is allowed by spin–orbit coupling with the allowed, out-of-plane polarized component of the S0 → S(π, π*) transition. (7) Vibronic coupling between the T(π, π*) state and a nearby T(n, π*) state introduces significant in-plane polarized intensity into the S0 → T(π, π*) transition. Essentially similar results were obtained with acetophenone and p-bromoacetophenone, with the exception that the strong S0 → T(π, π*) transition in p-bromoacetophenone was found to be in-plane polarized parallel to the long-axis polarized transition to the La1(π, π*) state. Diffuseness observed in the 4°K single-crystal S0 → T spectra of each of the three compounds is attributed to vibronic interaction of the T(n, π*) with nearly degenerate vibronic levels associated with a lower-lying T(π, π*) state.
Flat panel 3D display for unmanned ground vehicles (2009)

A flat panel stereoscopic display has been developed and tested for application in unmanned ground systems. The flat panel display has a footprint that is only slightly thicker than the same size LCD display and has been installed in the lid of a TALON OCU. The approach uses stacked LCD displays and produces live stereo video with passive polarized glasses but no spatial or temporal multiplexing. The analog display, which is available in sizes from 6.4" diagonal to 17" diagonal, produces 640 &times; 480 stereo imagery. A comparison of soldiers' performance using 3D vs. 2D using live stereo video will be given. A description of the display will be given along with discussion of the testing.
Predatory fish sounds can alter crab foraging behaviour and influence bivalve abundance (2014)

The risk of predation can have large effects on ecological communities via changes in prey behaviour, morphology and reproduction. Although prey can use a variety of sensory signals to detect predation risk, relatively little is known regarding the effects of predator acoustic cues on prey foraging behaviour. Here we show that an ecologically important marine crab species can detect sound across a range of frequencies, probably in response to particle acceleration. Further, crabs suppress their resource consumption in the presence of experimental acoustic stimuli from multiple predatory fish species, and the sign and strength of this response is similar to that elicited by water-borne chemical cues. When acoustic and chemical cues were combined, consumption differed from expectations based on independent cue effects, suggesting redundancies among cue types. These results highlight that predator acoustic cues may influence prey behaviour across a range of vertebrate and invertebrate taxa, with the potential for cascading effects on resource abundance.
Rational Synthesis and Characterization of a New Family of Low Thermal Conductivity Misfit Layer Compounds [(PbSe)0.99]m(WSe2)n (2009)

We describe here a general synthesis approach for the preparation of new families of misfit layer compounds and demonstrate its effectiveness through the preparation of the first 64 members of the [(PbSe)0.99]m(WSe2)n family of compounds, where m and n are integers that were systematically varied from 1 to 8. The new compounds [(PbSe)1+y]m(WSe2)n were synthesized by annealing reactant precursors containing m layers of alternating elemental Pb and Se followed by n layers of alternating elemental W and Se, in which the thickness of each pair of elemental layers was calibrated to yield a structural bilayer of rock salt structured PbSe and a trilayer of hexagonal WSe2. The compounds are kinetically trapped by the similarity of the composition profiles and modulation lengths in the precursor and the targeted compounds. The structural evolution from initial reactant of layer elements to crystalline misfit layer compounds was tracked using X-ray diffraction. The crystal structures of new compounds were probed using both analytical electron microscopy and X-ray diffraction. The c-axis of the misfit layer compound is perpendicular to the substrate, with a c-axis lattice parameter that changes linearly with a slope of 0.612−0.615 nm as m is changed and n is held constant and with a slope of 0.654−0.656 nm as n is varied and m is held constant. The in-plane lattice parameters did not change as the individual layer thicknesses were increased and a misfit parameter of y = −0.01 was calculated, the first negative misfit parameter among known misfit layer compounds. Analytical electron microscopy images and X-ray diffraction data collected on mixed hkl reflections revealed rotational (turbostratic) disorder of the a−b planes.
An integrated associative processing system (1994)

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
[Meningococcal W135 infection epidemics associated with pilgrimage to Mecca in 2000]. (2001)

These data suggest that the epidemic strain is not different from other strains in terms of virulence and transmissibility. Eight months after the Raj, the number of cases related to the epidemic remained limited in France. The characteristics of the most recent cases do however suggest an epidemic clone persists in the general population. The Direction of Health recommends vaccination using the quadrivalent A,C,W135,Y vaccine for the 2001 Raj.
Serum Levels of TGF-b and Fibronectin in Autosomal Dominant Osteopetrosis in Relation to Underlying Mutations and Well-Described Murine Counterparts (2003)

The study gives a further biochemical description of two different forms of autosomal dominant osteopetrosis (ADO) in relation to murine counterparts, with special attention to osteoblast function and the recent discovery of LRP5 gene mutations in ADO I. Patients and controls were investigated for markers of bone formation and resorption at baseline and following stimulation with thyroid hormone. Moreover, four different well-described murine models of osteopetrosis were investigated. Concerning the human forms, serum TSH levels decreased in all subjects, indicating effects on the target tissue. Osteocalcin and cross-linked collagen (NTx) were without significant differences among the groups. Significant increases in both markers were seen following stimulation. Baseline active TGF-beta1 levels were increased in both types of ADO (60% in ADO I [P = 0.006]; 46% in ADO II [P = 0.001], respectively), whereas fibronectin levels were decreased in both (ADO I 58% and ADO II 63% of normal, respectively [P = 0.012 and P = 0.001]). Following treatment, levels increased temporarily in all groups. In the murine models, active TGF-beta1 was significantly decreased in the tl- and ia-rat, whereas fibronectin levels were decreased in the mi-mouse, however, increased in the ia-rat. In conclusion, both types of ADO showed the same qualitative biochemical differences compared to controls, except that OPG levels were higher in ADO I. The decreased fibronectin levels in both types and in murine models reflect decreased bone resorption; however, this may also indicate hitherto unrecognized alterations in bone formation. Biochemical differences among known syndromes related to mutations in the LRP5 gene indicate different underlying pathogenetic mechanisms.
Computer Aided Analysis of Nonlinear Consolidation (1993)

Abstract Consolidation is one of the major problems in clayey foundation settlements. This paper presents a user-friendly software developed by the authors, based on finite element (FE) method including the concept of infinite elements. The software is found to be very efficient tool for the analysis of consolidation settlement potentials of bridge approaches founded on clayey soils.
Using anisotropic heat flux sensors in aerodynamic experiments (2009)

We present the results of comparative measurements of the heat flux to a flat plate in a supersonic flow at a Mach number of M = 6, which were performed using the two following anisotropic heat sensors with different thicknesses of sensor elements: (i) Atomic Layer Thermo Pile (ALTP, Fortech GmbH, Germany) with a thickness of ∼0.5 × 10−6 m and (ii) gradient heat flux sensor (GHFS, St. Petersburg State Polytechnic University, Russia) with a thickness of ∼2 × 10−4 m. The ALTP sensor can be used for directly measuring heat fluxes in processes with a characteristic time above 10−6 s. A method for mathematically processing the GHFS response signal is proposed that allows heat flux oscillations to be revealed in gasdynamic process with a characteristic time on the order of 10−4 s.
Guidelines for monitoring autophagy in Caenorhabditis elegans. (2015)

The cellular recycling process of autophagy has been extensively characterized with standard assays in yeast and mammalian cell lines. In multicellular organisms, numerous external and internal factors differentially affect autophagy activity in specific cell types throughout the stages of organismal ontogeny, adding complexity to the analysis of autophagy in these metazoans. Here we summarize currently available assays for monitoring the autophagic process in the nematode C. elegans. A combination of measuring levels of the lipidated Atg8 ortholog LGG-1, degradation of well-characterized autophagic substrates such as germline P granule components and the SQSTM1/p62 ortholog SQST-1, expression of autophagic genes and electron microscopy analysis of autophagic structures are presently the most informative, yet steady-state, approaches available to assess autophagy levels in C. elegans. We also review how altered autophagy activity affects a variety of biological processes in C. elegans such as L1 survival under starvation conditions, dauer formation, aging, and cell death, as well as neuronal cell specification. Taken together, C. elegans is emerging as a powerful model organism to monitor autophagy while evaluating important physiological roles for autophagy in key developmental events as well as during adulthood.