gebhart/patrepeval huggingface dataset:
Joint Visual-Temporal Embedding for Unsupervised Learning of Actions in Untrimmed Sequences (2021)

Understanding the structure of complex activities in untrimmed videos is a challenging task in the area of action recognition. One problem here is that this task usually requires a large amount of hand-annotated minute- or even hour-long video data, but annotating such data is very time consuming and can not easily be automated or scaled. To address this problem, this paper proposes an approach for the unsupervised learning of actions in untrimmed video sequences based on a joint visual-temporal embedding space. To this end, we combine a visual embedding based on a predictive U-Net architecture with a temporal continuous function. The resulting representation space allows detecting relevant action clusters based on their visual as well as their temporal appearance. The proposed method is evaluated on three standard benchmark datasets, Breakfast Actions, INRIA YouTube Instructional Videos, and 50 Salads. We show that the proposed approach is able to provide a meaningful visual and temporal embedding out of the visual cues present in contiguous video frames and is suitable for the task of unsupervised temporal segmentation of actions.
The complete mitochondrial genome of the pentastomid Armillifer grandis (Pentastomida) from the Democratic Republic of Congo (2017)

We present the first complete mitochondrial genome of the pentastomid <i>Armillifer grandis</i> (Arthropoda: Pentastomida) collected from the lungs of a rhinoceros viper (<i>Bitis nasicornis</i>) in the Democratic Republic of Congo. The full length mitochondrial genome of <i>Armillifer grandis</i>, which measures 16,073 bp in length, contains 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes. A clear A + T bias is observed in the mitogenome of <i>Armillifer grandis</i> with an overall base composition of 34.6% A, 29.4% T, 29% C, and 6.9% G, and a GC content of 35.9%. The gene arrangement is identical to that of previously described pentastomid mitogenomes.
Kinescope Spot Size as it Relates to Picture Quality (1977)

The degradation of kinescope spot size (spot blooming) with increasing beam current is a well known phenomenon that has significant bearing on kinescope resolution. For purposes of improving kinescope design evaluation and production lot monitoring, it is desirable to quantify the effects of beam current on picture quality. The basis for this paper is the assumption that kinescope performance can be defined in terms of its spatial frequency response. Computer oriented techniques which are employed to analyze a light output profile of the spot and calculate the associated spatial frequency response of the kinescope are discussed. In addition, the non-linear effects of the human eye are considered. Advantages and disadvantages of both techniques are examined and some typical measurements are shown.
Simple regioselective synthesis of spiro[2H-indene-2,3′-[3H]pyrazoles] (2000)

1,3-Dipolar cycloaddition of nitrilimines to a variety of 2-arylmethylidene-1-indanones 1 or 2-arylmethylidene-1,3-indandiones 5 gave the corresponding spiro[2H-indene-2,3′-[3H]pyrazol]-1(3H)-one 3 and their 1,3-dione derivatives 6 in high regioselectivity. The stereo-configuration of 3 (3'R, 4'S or its enantiomeric form) was established by nOe-difference technique as well as single crystal X-ray diffraction analysis.
Fiberoptic Angioscopy: Role in the Diagnosis of Chronic Pulmonary Arterial Obstruction (1985)

We evaluated the role of fiberoptic angioscopy in eight patients with suspected chronic pulmonary embolic obstruction of the pulmonary arteries. Angioscopy, preceded by ventilation-perfusion lung scans, right-heart catheterization, and pulmonary angiography, resulted in diagnostic changes in four patients: from pulmonary artery agenesis to chronic emboli; from chronic emboli to normal pulmonary arterial intima (primary pulmonary hypertension); from chronic pulmonary emboli to extrinsic compression of a major pulmonary artery (fibrosing mediastinitis); and from suspected agenesis or chronic emboli to a tumor (fibrosarcoma) of the pulmonary artery. Angioscopy also more accurately determined the extent and surgical accessibility of chronic embolic obstruction in the five patients with that disorder; as a result, we decided that the obstruction in one patient was inoperable. No significant complications occurred with angioscopy and we conclude that its direct visualization capability can contribute significantly to the diagnostic evaluation of suspected chronic pulmonary arterial obstruction.
Critical steps in the isolation and expansion of adipose-derived stem cells for translational therapy (2015)

Since the discovery of adipose-derived stem cells (ASCs), there have been high expectations of their putative clinical use. Recent advances support these expectations, and it is expected that the transition from pre-clinical and clinical studies to implementation as a standard treatment modality is imminent. However ASCs must be isolated and expanded according to good manufacturing practice guidelines and a basic assurance of quality, safety, and medical effectiveness is needed for authorisation by regulatory agencies, such as European Medicines Agency and US Food and Drug Administration. In this review, a collection of studies investigating the influence of different steps of the isolation and expansion protocol on the yield and functionality of ASCs has been presented in an attempt to come up with best recommendations that ensure potential beneficial clinical outcome of using ASCs in any therapeutic setting. If the findings confirm the initial observations of beneficial effects of ASCs, the path is paved for implementing these ASC-based therapies as standard treatment options.
Transformation of Raman Spectra of 6-azacytidine and Related Compounds Under Deuteration (2010)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation S. Garasevych, M. Iakhnenko, O. Slobodyanyuk, I. Vaskivskyi; Transformation of Raman Spectra of 6‐azacytidine and Related Compounds Under Deuteration. AIP Conf. Proc. 6 August 2010; 1267 (1): 664–665. https://doi.org/10.1063/1.3482738 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
[Investigation of intracavernous injection of papaverine for erectile impotence]. (1989)

Forty milligrams papaverine HCl was intracavernously injected to 28 patients with erectile dysfunction for diagnosis and treatment in 14 cases in which it was injected a few times. We designed a brief manual method for measurement of penile hardness by artificial erection. Twenty of the patients corresponding to 71.4%, reacted, but only 16 (57.1%) had efficient erection for possibility of coitus. It was useful for the diagnosis of vascular dysfunction with dorsal penile arterial pulse sound examination in impotence. It was useful for the cases of small vascular impediment with preservation of nerve supply after the operation of intrapelvic malignancies, and self injection might be possible, but on the other hand, it had no effect for the patients of advanced age with vascular impediment and diabetes mellitus neuropathy, and with arteriosclerosis.
Functionally intact glutamate-mediated signaling in bipolar cells of the TRKB knockout mouse retina (2004)

In the juvenile trkB knockout (trkB-/-) mouse, retina synaptic communication from rods to bipolar cells is severely compromised as evidenced by a complete absence of electroretinogram (ERG) b-wave, even though the inner retina appears anatomically normal (Rohrer et al., 1999). Since it is well known that the b-wave reflects light-dependent synaptic activation of ON bipolar cells via their metabotropic glutamate receptor, mGluR6, we sought to analyze the anatomical and functional integrity of the glutamatergic synapses at these and other bipolar cells in the trkB(-/-) mouse. Although rod bipolar cells from wild-type juvenile mice were determined to be immunopositive for trkB, postsynaptic metabotropic and ionotropic glutamate receptor-mediated pathways in ON and OFF bipolar cells were found to be functionally intact, based on patch electrode recordings, using brief applications ("puffs") of glutamate or its analog, 2-amino-4-phosphonobutyric acid (APB), a selective agonist for mGluR6 receptors. Ionotropic glutamate receptor function was assayed in OFF-cone bipolar and horizontal cells by applying exogenous glutamatergic agonists in the presence of the channel-permeant guanidinium analogue, 1-amino-4-guanidobutane (AGB). Electron-microscopic analysis revealed that the ribbon synapses between rods and postsynaptic rod bipolar and horizontal cells were formed at the appropriate age and appear to be structurally intact, and immunohistochemical analysis did not detect profound defects in the expression of excitatory amino acid transporters involved in glutamate clearance from the synaptic cleft. These data indicate that there does not appear to be evidence for postsynaptic deficits in glutamatergic signaling in the ON and OFF bipolar cells of mice lacking trkB.
Linkage Relationship of C2 Deficiency, HLA and Glyoxalase I Loci1 (1979)

Immunogenetic analysis of a homozygous C2-deficient individual and family members demonstrated linkage of HLA-A25, B18 and C2o. HLA-D typing showed that 5 members typed with homozygous Dw2 typing cells from an individual with C2 deficiency but not with Dw2 typing cells from 2 individuals with normal C2. The homozygous C2-deficient propositus and brother were HLA-A and B homozygous but heterozygous at the HLA-D and glyoxalase I loci. Therefore, in this family, the C2o gene is linked with two distinct haplotypes: HLA-A25, B18, Dw2, GLO1 and HLA-A25, B18, D unknown, GL02. These results could be explained by an ancestral recombinant event, which occurred between the C2o locus and HLA-D locus in which C2o segregated with HLA-B. This would suggest that the locus for the C2o gene maps between HLA-B and HLA-D on the sixth chromosome.
ACROMEGALY: INSENSITIVITY OF THE PANCREATIC ALPHA CELL TO HYPERGLYCAEMIA* (1978)

Plasma glucagon levels were determined after 50 g of oral glucose loading in eleven acromegalics and fourteen normal subjects. Basal plasma glucagon levels were significantly elevated in patients with acromegaly, as compared with those in normal subjects. Oral glucose loading caused a decrease in plasma glucagon in normal subjects but not in acromegalics. Since this non-suppressibility of plasma glucagon by orally administered glucose was observed even in acromegalics without diabetes, it is concluded that insensitivity of the pancreatic alpha cell to hyperglycaemia exists in patients with acromegaly as well as in diabetics.
Chronic aerobic exercise opposes age‐ and high fat diet‐associated vascular endothelial dysfunction: relation to IKKβ and AMPK (2009)

Age and high fat, ie. Western, diet (WD) are associated with inflammation and impaired endothelium‐dependent dilation (EDD), whereas aerobic exercise has opposite effects. Activation of the pro‐inflammatory signaling molecule inhibitor of kappa B kinase beta (IKKβ), as modulated by adenosine monophosphate activated protein kinase (AMPK), may contribute to these differential effects. Old (O: 29‐31 mo) B6D2F1 mice fed either normal chow (NC) or WD (40% fat, 8 weeks) either were sedentary (SED) or performed voluntary wheel running (VR). In SED, carotid artery EDD to acetylcholine was reduced after WD (max dilation: 62 ± 8 vs. NC: 76 ± 2%, P &lt; 0.05) and this was associated with increased aortic IKKβ activation (phosphorylated (pSer 177/181 ):total IKKβ: 2.1 ± 0.8 vs. 0.5 ± 0.1 AUs, P = 0.01) and reduced AMPK activation (pThr 172 :total AMPKα: 0.7 ± 0.1 vs. 1.0 ± 0.1 AUs, P = 0.05). VR improved EDD in both NC (96 ± 2%, P &lt; 0.01) and WD (91 ± 7%, P &lt; 0.05) fed mice, while reducing IKKβ activation by ~60% (P &lt; 0.01 in NC, P = 0.1 in WD) and increasing AMPK activity by 30‐40% (P = 0.1 in NC, P &lt; 0.05 in WD). Here we demonstrate that habitual voluntary aerobic exercise may reverse age‐ and WD‐associated vascular endothelial dysfunction by increasing AMPK activity and inhibiting IKKβ‐linked pro‐inflammatory signaling. NIH AG013038 , AG006537 , AG015897 , AG022241 , AG000279
Vasoactive intestinal polypeptide and substance P in primary afferent pathways to the sacral spinal cord of the cat (1985)

An analysis of vasoactive intestinal polypeptide immunoreactivity (VIP-IR) and substance P-IR in the cat spinal cord has revealed marked differences in the distribution of the two peptides. While substance P-IR was located at all levels of the cord, VIP-IR was most prominent in the sacral segments in Lissauer's tract and lamina I on the lateral edge of the dorsal horn. VIP-IR was also present in the sacral cord in (1) laminae V, VII, and X, (2) a thin band on the medial side of the dorsal horn, (3) the dorsal commissure, (4) the lateral band of the sacral parasympathetic nucleus, and (5) in a few animals in Onuf's nucleus. In other segments of the spinal cord VIP-IR was much less prominent but was present in Lissauer's tract and laminae I, II, and X. Substance P-IR was more uniformly distributed at all segmental levels in laminae I-III, V, VII, and X and in the dorsal commissure. In ventrolateral lamina I of the sacral spinal cord both VIP-IR and substance P-IR exhibited a distinctive periodic pattern in the rostrocaudal axis. The peptides were associated with bundles of dorsoventrally oriented axons and varicosities spaced at approximately 210-micron intervals center to center along the length of the spinal cord. The bundles in lamina I continued into lamina V where they further divided into smaller bundles that extended medially through laminae V and VII. The most prominent bundles of VIP axons passed ventrally from lateral laminae V and VII to enter lamina X and the ventral part of the dorsal gray commissure. On the other hand the majority of substance P axons in lamina V turned dorsally to join with axons on the medial side of the dorsal horn and to pass into the dorsal part of the dorsal gray commissure. Rostrocaudal VIP axons were present not only in Lissauer's tract but also in dorsolateral lamina I, in the lateral funiculus and in the ependymal cell layer of the central canal. Following unilateral transection of the sacral dorsal roots (2 weeks-22 months) the density of VIP axons and terminals was markedly reduced in ipsilateral Lissauer's tract and lateral laminae I and V; however, no change was detected in lamina X. Sacral deafferentation reduced substance P-IR in the dorsal gray commissure and in lateral laminae I and V.(ABSTRACT TRUNCATED AT 400 WORDS)
A New Approach to Counteracting Chromatographic Electrophoresis (1998)

ABSTRACT A newly designed apparatus, the J-column, was used to implement the concept of counteracting chromatographic electrophoresis (CACE). The process of separation and focusing was visualized by a model mixture of hemoglobin and ferritin. According to isoelectric focusing analysis, hemoglobin can be purified from the hemolysate mixture by CACE on a J-column.
Thiophosgene in Organic Synthesis (1978)

The synthetic utility of thiophosgene has recently been widely explored. Besides use in the classical preparations of isothiocyanates, thiocarbamates,thiocarbonates, and thioureas, it can also be successfully used in the synthesis of nitriles, alkenes, thietanes, a wide variety of thioxo-substituted heterocyclic compounds, and inorganic complexes. Thiophosgene is a readily available chemical but can also be conveniently prepared in the laboratory by reductive dechlorination of trichloromethanesulfenyl chloride. The present survey of the literature on thiophosgene is intended to encourage better use of the reagent in future organic syntheses. 1. Introduction 2. Synthesis of Thiophosgene 3. Reactions at a Nitrogen Centre 3.1. Reactions with Primary Amines 3.2. Reactions with Amides 3.3. Reactions with Secondary Amines 3.4. Reactions with Tertiary Amines 3.5. Reactions with Imines 3.6. Reactions with Hydrazines 3.7. Reactions with Diazo Compounds and Azides 4. Reactions at an Oxygen Centre 4.1. Reactions with Alcohols 4.2. Reactions with Phenols 4.3. Reactions with Thiolactones 4.4. Reactions with Oximes 5. Reactions at a Sulfur Centre 5.1. Reactions with Thiols 5.2. Reactions with Dithiolactone Derivatives 6. Reactions at a Carbon Centre 7. Reactions with Organometallic and Inorganic Compounds 8. Miscellaneous Reactions 9. Conclusions
Isolation and Characterization of Multipotential Mesenchymal Cells from the Mouse Synovium (2012)

The human synovium contains mesenchymal stem cells (MSCs), which are multipotential non-hematopoietic progenitor cells that can differentiate into a variety of mesenchymal lineages and they may therefore be a candidate cell source for tissue repair. However, the molecular mechanisms by which this can occur are still largely unknown. Mouse primary cell culture enables us to investigate the molecular mechanisms underlying various phenomena because it allows for relatively easy gene manipulation, which is indispensable for the molecular analysis. However, mouse synovial mesenchymal cells (SMCs) have not been established, although rabbit, cow, and rat SMCs are available, in addition to human MSCs. The aim of this study was to establish methods to harvest the synovium and to isolate and culture primary SMCs from mice. As the mouse SMCs were not able to be harvested and isolated using the same protocol for human, rat and rabbit SMCs, the protocol for humans was modified for SMCs from the Balb/c mouse knee joint. The mouse SMCs obtained showed superior proliferative potential, growth kinetics and colony formation compared to cells derived from muscle and bone marrow. They expressed PDGFRá and Sca-1 detected by flow cytometry, and showed an osteogenic, adipogenic and chondrogenic potential similar or superior to the cells derived from muscle and bone marrow by demonstrating in vitro osteogenesis, adipogenesis and chondrogenesis. In conclusion, we established a primary mouse synovial cell culture method. The cells derived from the mouse synovium demonstrated both the ability to proliferate and multipotentiality similar or superior to the cells derived from muscle and bone marrow.
Toward highly efficient and stable Sn2+ and mixed Pb2+/Sn2+ based halide perovskite solar cells through device engineering (2021)

Device engineering with various strategies is discussed in detail to improve the performance and stability of Sn<sup>2+</sup>-based perovskite solar cells.
A selection method of Acoustic Emission characteristic parameters based on mutual information and distance measurement (2012)

It is important to select an effective subset of Acoustic Emission signal parameters to achieve the real-time requirements in wireless transmits. Currently, the parameters distance is wildly used in the subset abstraction. This method is easily disturbed by noise and impacting the resolution effect. In this paper, a new characteristic parameters selection method is proposed which combined the mutual information theory and distance measurement. The new approach not only considers the parameters distance, but also highlights the relevance between characteristic parameters and fault classes. At the same time, the redundancy of characteristic parameters is highly focused on. Experiments illustrated in this paper confirmed the improvement in parameters subset resolution and effectiveness using the new strategy.
Chemistry of polynuclear metal halides. V. Reactions and characterization of compounds containing tungsten halide cluster species (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry of polynuclear metal halides. V. Reactions and characterization of compounds containing tungsten halide cluster speciesRonald D. Hogue and Robert E. McCarleyCite this: Inorg. Chem. 1970, 9, 6, 1354–1360Publication Date (Print):June 1, 1970Publication History Published online1 May 2002Published inissue 1 June 1970https://pubs.acs.org/doi/10.1021/ic50088a012https://doi.org/10.1021/ic50088a012research-articleACS PublicationsRequest reuse permissionsArticle Views348Altmetric-Citations41LEARN 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
Major histocompatibility complex antigen expression on rat microglia following epidural kainic acid lesions (1988)

Vigorous expression of major histocompatibility complex (MHC) class I and class I surface glycoproteins was observed on reactive microglia but not on astrocytes in the rat brain following lesions induced by epidural kainic acid (KA) on the cerebral cortex. The monoclonal antibodies used were OX18 against MHC class I, OX6 against MHC class II, OX1 against leukocyte common antigen (LCA), and W3/13 against pan-T lymphocytes. Astrocytes were marked by antibodies to glial fibrillary acidic protein (GFA) and S100b protein. The lesion differentially affected four zones: the central area of the lesion where most cells died; the peripheral zone surrounding the lesion where selective damage occurred; projection tracts from the lesioned area; and terminal fields of damaged neurons. In nonlesioned animals, class I expression was confined to vascular endothelial cells and some small glial cells. Following KA treatment, class I-positive round cells appeared in the central zone at day 1, peaked about day 5, and then slowly declined. In the peripheral zone, class I-positive microglia were present fron day 2 on. They demonstrated classical morphology for such cells, and in some cases arranged themselves in pyramidal profiles surrounding neurons. Reactive microglia were also class I positive along tracts of damaged neurons and in the terminal areas. The reaction was reduced to control levels 16-20 weeks after lesioning although some vascular endothelial cells and a few round cells still stained positively in the cystic area, which was the remnant of the central zone. Class II antigen expression first appeared in the form of round cells in the central zone of the lesion on day 1. These peaked at 5-7 days and declined thereafter. In the peripheral zone on day 5, some positive round or ameboid cells were found intermingled with typical reactive microglia. This reaction peaked at about 1-2 weeks and decreased thereafter. Class II-positive microglia appeared in fiber tracts and in the terminal areas on day 5, peaked after 2-3 weeks, and declined thereafter. Double immunostaining for class I and II antigens showed that there were significantly fewer class II- than class I-positive cells, but the morphology of the two groups was similar. No astrocytes stained positively for either group I or group II antigen. In both the primary and secondary lesioned areas, LCA staining was observed on the surface of reactive microglia. In the primary lesions there were also LCA-positive round cells in the central zone, but these were rare in the peripheral zone and the secondary lesioned areas.(ABSTRACT TRUNCATED AT 400 WORDS)