gebhart/patrepeval huggingface dataset:
Mapping and ablation of scar-related ventricular tachycardia guided by noncontact endocardial mapping system (2003)

Objective To explore the electrophysiologic mechanisms and methods of mapping and catheter ablation of scar related ventricular tachycardia (VT) using noncontact mapping system(EnSite3000 system) Methods After establishing a closed chest pig model of sustained monomorphic VT, a 64 electrode balloon catheter was posited in to the left ventricle(LV) Another balloon catheter was located in right ventricle (RV) if needed Two patients with ventricular tachycardia accompanied by arrhythmogenic right ventricular cardiomyopathy (ARVC) underwent radiofrequency catheter ablation guided by noncontact mapping system LV and RV geometry were determined, and scar regions, border regions and distant areas were determined with dynamic scar mapping The activation series, key areas and reentry of each VT were analysed Ablation was guided by the navigation system of EnSite3000 system Results (1) The size, location and border of scar determined by the system were correlated to pathological analysis Sustained, monomorphic VTs were induced in 4 pigs (a total of 8 episodes) by ventricular extra stimulation The key sites of all VT were found in RV (2/8) and in LV (6/8) by isopotential mapping of EnSite3000 system These sites were located in the border of scar or inside the scar Two typical figures of 8 shaped VT circuits were determined Three types VT were ablated successfully Ablation failed in 5 types because of ventricular fibrillation induced by delivered radiofrequency current in 4 types (2) Low voltage areas similar to scar tissue were mapped in RVOT of 2 ARVC cases by the system Two types of VT were induced in 1 case of ARVC The isthmus of reentry in RV of the common type located between tricuspid anulus and low voltage area in RVOT Successful ablation was achieved after linear ablation in the isthmus Another VT originating from anterior of RVOT was ablated successfully He was free from VT after 4 months′ follow up ICD was planted in another patient because the ablation failed Conclusions The EnSite3000 system can map the scar or low voltage area related to VT, where as conventional methods can not accurately mapped it It also can identify the key portions of the circuits of scar related VT and safely map and guide ablation of scar related VT This technique has proved to be useful in devising anatomically based strategies for ablation of scar related ventricular tachycardia
Crystal structure solution for the A 6 B 2O17 (A = Zr, Hf; B = Nb, Ta) superstructure (2019)

Zr<sub>6</sub>Ta<sub>2</sub>O<sub>17</sub>, Hf<sub>6</sub>Nb<sub>2</sub>O<sub>17</sub> and Hf<sub>6</sub>Ta<sub>2</sub>O<sub>17</sub> crystal structure solutions have been solved using synchrotron X-ray powder diffraction and neutron powder diffraction in conjunction with simulated annealing, charge flipping and Rietveld refinement. These structures have been shown to be isomorphous with the Zr<sub>6</sub>Nb<sub>2</sub>O<sub>17</sub> superstructure, leading to the classification of the A<sub>6</sub>B<sub>2</sub>O<sub>17</sub> (A = Zr, Hf; B = Nb, Ta) orthorhombic compound family with symmetry Ima2 (No. 46). The asymmetrical structural units of cation-centred oxygen polyhedra used to build the structure are as follows: (i) one set of symmetry-equivalent six-coordinated polyhedra, (ii) three sets of symmetry-equivalent seven-coordinated polyhedra and (iii) one set of symmetry-equivalent eight-coordinated polyhedra. The potential for cation order and disorder was discussed in terms of cation atomic number contrast in X-ray and neutron powder diffraction as well as the bond valence method. In addition, the structural mechanisms for experimentally observed compositional variations within the solid solution range can be attributed to the addition or removal of a set of symmetry-equivalent seven-coordinated polyhedra accompanied by corresponding oxygen tilts within the A<sub>6</sub>B<sub>2</sub>O<sub>17</sub> structure.
Identification of a New Pea Gene, PsNlec1, Encoding a Lectin-like Glycoprotein Isolated from the Symbiosomes of Root Nodules (1996)

A 27-kD glycoprotein antigen recognized by monoclonal antibody MAC266 was purified from isolated symbiosomes derived from pea (Pisum sativum) root nodules containing Rhizobium. The N-terminal amino acid sequence was obtained, and the corresponding cDNA clone was isolated by a polymerase chain reaction-based strategy. The clone contained a single open reading frame, and the gene was termed PsNlec1. Phylogenetic analysis of 31 legume sequences showed that the PsNlec1 protein is related to the legume lectin family but belongs to a subgroup that is very different from pea seed lectin. Expression of the PsNlec1 transcript was much stronger in nodules than in other parts of the plant. It was found in both infected and uninfected cells in the central tissue of the nodule and in the stele of the root near the attachment point of the nodule. When uninfected pea seedlings were grown on medium containing nitrate, weak transcription of PsNlec1 was observed in the root system. The identification of PsNlec1 inside the symbiosome is consistent with the observation that legume lectins are generally vacuolar proteins that may serve as transient storage components.
Wind Power Curtailment and Energy Storage in Transmission Congestion Management Considering Power Plants Ramp Rates (2014)

The integration of intermittent generation in power grids, such as wind energy, imposes new challenges for transmission congestion management. In order to solve this problem, energy storage systems (ESS) have been proposed in the literature, as they provide an efficient mechanism for balancing variability while reducing operational costs. This paper presents a comprehensive analysis of the dynamic interactions between wind energy curtailment and an energy storage system (ESS) when the ramping rates of power plants are considered. An analytical framework is developed to study different mitigation measures in terms of total energy curtailed, total congestion costs, line load factor and congestion probability. This framework is tested in a real case study and a sensitivity analysis is performed to identify the influence of the main ESS design parameters in congestion mitigation performance.
Collagen-stimulated induction of keratinocyte collagenase is mediated via tyrosine kinase and protein kinase C activities. (1994)

We have previously shown that during wound healing migrating keratinocytes, which are in contact with the dermal matrix, express interstitial collagenase, whereas basal epidermal cells, which reside on an intact basement membrane, do not. Duplicating this in vivo pattern, collagenase production was induced in primary human keratinocytes grown on native type I collagen, but only background levels of enzyme were detected in cells cultured on denatured type I collagen or on Matrigel. Using genistein, herbimycin A, and sodium orthovanadate, we show that tyrosine kinase activity was required for collagen-mediated induction of keratinocyte collagenase. Similarly, collagenase steady-state mRNA levels and the activity of a transfected human collagenase-promoter CAT construct were inhibited by genistein and enhanced by orthovanadate. Staurosporine and H-7 also blocked collagenase production, indicating that protein kinase C activity was also required for collagen-mediated induction of keratinocyte collagenase. All inhibitory effects were dose-dependent, and no compound significantly affected total protein synthesis. Furthermore, both tyrosine kinase and protein kinase C inhibitors blocked phorbol ester-mediated induction of collagenase, but only protein kinase C antagonists abrogated phorbol ester-mediated induction of c-fos mRNA. These data suggest that similar signal transduction pathways are used by various agonists to mediate the stimulation of interstitial collagenase production.
Molecular basis and genetic predisposition to intracranial aneurysm (2014)

Intracranial aneurysms, also called cerebral aneurysms, are dilatations in the arteries that supply blood to the brain. Rupture of an intracranial aneurysm leads to a subarachnoid hemorrhage, which is fatal in about 50% of the cases. Intracranial aneurysms can be repaired surgically or endovascularly, or by combining these two treatment modalities. They are relatively common with an estimated prevalence of unruptured aneurysms of 2%-6% in the adult population, and are considered a complex disease with both genetic and environmental risk factors. Known risk factors include smoking, hypertension, increasing age, and positive family history for intracranial aneurysms. Identifying the molecular mechanisms underlying the pathogenesis of intracranial aneurysms is complex. Genome-wide approaches such as DNA linkage and genetic association studies, as well as microarray-based mRNA expression studies, provide unbiased approaches to identify genetic risk factors and dissecting the molecular pathobiology of intracranial aneurysms. The ultimate goal of these studies is to use the information in clinical practice to predict an individual's risk for developing an aneurysm or monitor its growth or rupture risk. Another important goal is to design new therapies based on the information on mechanisms of disease processes to prevent the development or halt the progression of intracranial aneurysms.
ASCIA guidelines for prevention of food anaphylactic reactions in schools, preschools and child‐care centres (2004)

These guidelines have been developed by the anaphylaxis working party of the Australasian Society of Clinical Immunology and Allergy to provide advice for minimizing the risk of food-induced anaphylaxis in schools, preschools and child-care centres. The guidelines outline four steps for the prevention of food anaphylactic reactions in children at risk and food policy measures specific to school age and preschool age children.
Indoles and auxins. X. 2,4-Dinitrophenylsulfenyl chloride, a reagent for separation and identification of naturally occurring indoles (1970)

3-Substituted indoles react with 2,4-dinitrophenylsulfenyl chloride to give 2-(2′,4′-dinitrophenylthio)-3-indolyl derivatives. Compounds of this type were prepared from 13 naturally occurring indoles and it was shown that these derivatives are useful, in many cases, as an aid in the isolation, chromatographic separation, and identification by infrared and mass spectroscopy and melting points. The indoles can be regenerated from most derivatives by desulfuration with Raney nickel.
Process for remediation of plastic waste (2023)

A single step process for degrading plastic waste by converting the plastic waste into carbonaceous products via thermal decomposition of the plastic waste by placing the plastic waste into a reactor, heating the plastic waste under an inert or air atmosphere until the temperature of 700.degree. C. is achieved, allowing the reactor to cool down, and recovering the resulting decomposition products therefrom. The decomposition products that this process yields are carbonaceous materials, and more specifically egg-shaped and spherical-shaped solid carbons. Additionally, in the presence of a transition metal compound, this thermal decomposition process produces multi-walled carbon nanotubes.
Quaternary semiconductor Cu2FeSnS4 nanoparticles as an alternative to Pt catalysts (2013)

We demonstrate an N719 dye sensitized solar cell based on Cu2FeSnS4 (CFTS) as a counter electrode. The elements for the material are all earth abundant and environmentally benign. The power conversion efficiency of a DSSC using CFTS was comparable to that of a DSSC using Pt under A.M. 1.5G (100 mW cm−2).
Solvent Additives: Key Morphology‐Directing Agents for Solution‐Processed Organic Solar Cells (2018)

Organic photovoltaics (OPV) have the advantage of possible fabrication by energy-efficient and cost-effective deposition methods, such as solution processing. Solvent additives can provide fine control of the active layer morphology of OPVs by influencing film formation during solution processing. As such, solvent additives form a versatile method of experimental control for improving organic solar cell device performance. This review provides a brief history of solution-processed bulk heterojunction OPVs and the advent of solvent additives, putting them into context with other methods available for morphology control. It presents the current understanding of how solvent additives impact various mechanisms of phase separation, enabled by recent advances in in situ morphology characterization. Indeed, understanding solvent additives' effects on film formation has allowed them to be applied and combined effectively and synergistically to boost OPV performance. Their success as a morphology control strategy has also prompted the use of solvent additives in related organic semiconductor technologies. Finally, the role of solvent additives in the development of next-generation OPV active layers is discussed. Despite concerns over their environmental toxicity and role in device instability, solvent additives remain relevant morphological directing agents as research interests evolve toward nonfullerene acceptors, ternary blends, and environmentally sustainable solvents.
Gender recognition and biometric identification using a large dataset of hand images. (2017)

The human hand possesses distinctive features which can reveal gender information. In addition, the hand is considered one of the primary biometric traits used to identify a person. In this work, we propose a large dataset of human hand images with detailed ground-truth information for gender recognition and biometric identification. The proposed dataset comprises of 11,076 hand images (dorsal and palmar sides), from 190 subjects of different ages under the same lighting conditions. Using this dataset, a convolutional neural network (CNN) can be trained effectively for the gender recognition task. Based on this, we design a two-stream CNN to tackle the gender recognition problem. This trained model is then used as a feature extractor to feed a set of support vector machine classifiers for the biometric identification task. To facilitate access to the proposed dataset and replication of our experiments, the dataset, trained CNN models, and Matlab source code are available at (this https URL).
Multimodal One-shot Learning of Speech and Images (2019)

Imagine a robot is shown new concepts visually together with spoken tags, e.g. "milk", "eggs", "butter". After seeing one paired audiovisual example per class, it is shown a new set of unseen instances of these objects, and asked to pick the "milk". Without receiving any hard labels, could it learn to match the new continuous speech input to the correct visual instance? Although unimodal one-shot learning has been studied, where one labelled example in a single modality is given per class, this example motivates multimodal one-shot learning. Our main contribution is to formally define this task, and to propose several baseline and advanced models. We use a dataset of paired spoken and visual digits to specifically investigate recent advances in Siamese convolutional neural networks. Our best Siamese model achieves twice the accuracy of a nearest neighbour model using pixel-distance over images and dynamic time warping over speech in 11-way cross-modal matching.
Oligoclonal CD8 + T Cells Play a Critical Role in the Development of Hypertension (2014)

Recent studies have emphasized a role of adaptive immunity, and particularly T cells, in the genesis of hypertension. We sought to determine the T-cell subtypes that contribute to hypertension and renal inflammation in angiotensin II-induced hypertension. Using T-cell receptor spectratyping to examine T-cell receptor usage, we demonstrated that CD8(+) cells, but not CD4(+) cells, in the kidney exhibited altered T-cell receptor transcript lengths in Vβ3, 8.1, and 17 families in response to angiotensin II-induced hypertension. Clonality was not observed in other organs. The hypertension caused by angiotensin II in CD4(-/-) and MHCII(-/-) mice was similar to that observed in wild-type mice, whereas CD8(-/-) mice and OT1xRAG-1(-/-) mice, which have only 1 T-cell receptor, exhibited a blunted hypertensive response to angiotensin II. Adoptive transfer of pan T cells and CD8(+) T cells but not CD4(+)/CD25(-) cells conferred hypertension to RAG-1(-/-) mice. In contrast, transfer of CD4(+)/CD25(+) cells to wild-type mice receiving angiotensin II decreased blood pressure. Mice treated with angiotensin II exhibited increased numbers of kidney CD4(+) and CD8(+) T cells. In response to a sodium/volume challenge, wild-type and CD4(-/-) mice infused with angiotensin II retained water and sodium, whereas CD8(-/-) mice did not. CD8(-/-) mice were also protected against angiotensin-induced endothelial dysfunction and vascular remodeling in the kidney. These data suggest that in the development of hypertension, an oligoclonal population of CD8(+) cells accumulates in the kidney and likely contributes to hypertension by contributing to sodium and volume retention and vascular rarefaction.
Induction of autoantibodies in refractory rheumatoid arthritis treated by infliximab. (2005)

Infliximab therapy lead to the selective and delayed induction of autoantibodies. This induction was not associated with clinical symptoms until week 30 and did not differ between responders and non-responders.
A Threshold-Based Adaptive Encoding for Achieving the Diversity-Multiplexing Tradeoff (2005)

Recent work has established the diversity-multiplexing tradeoff at high SNR in multiple input multiple output (MIMO) communication systems having N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">t</sub> and N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</sub> transmit and receive antennas respectively. We introduce a new adaptive encoding (AE) scheme which can switch efficiently between suboptimal encoding schemes, given a very limited non-systematic feedback information to the transmitter side to achieve the optimal tradeoff. When a 2 times 2 MIMO system is considered, the adaptive encoding scheme is presented and shown to achieve the optimal diversity-multiplexing tradeoff. The adaptive-encoding scheme is comprised of two suboptimal encoding achieving respectively the high rate and the low rate optimal segments
IEEE 802.11ac: Dynamic Bandwidth Channel Access (2011)

IEEE 802.11ac is enhancing the throughput beyond IEEE 802.11n using the 80 MHz channel bonding technique. In this paper, we first overview the static 40 MHz and the dynamic 20/40 MHz bandwidth channel access schemes defined in 802.11n. We then extend the schemes to the IEEE 802.11ac for the 80 MHz wide channel and study the static and dynamic channel access schemes. The simulation results show that dynamically switching between 20, 40, and 80 MHz bandwidths based on the clear channel assessment (CCA) result of each 20 MHz channel outperforms the static 80 MHz scheme by 85 % in terms throughput when the secondary channels are occupied by the 802.11a stations with moderate traffic loads. The paper also investigates the effects of the secondary channel CCA sensitivity and the primary channel selection on the 802.11ac throughput.
Preparation of Silica based C8 Packing Material from Non-Toxic Water Glass (2020)

Synthesize of low price stationary phases with permanent groups for reversed-phase liquid chromatography (RP-HPLC) has gained great importance in the past several years. In chromatographic analyses, silica gels are commonly used as a supporting material as they give high mechanical strength and swelling resistance. Additionally, different particle and pore size availability and low cost makes these materials one of the most suitable stationary phase. In this work, chemically bonded C8 phase was synthesized by sol-gel route and instead of toxic silicone alkoxides, non-toxic water glass was chosen as a precursor. Linking process of C8 groups to silica gel was carried out by trimethoxy(octyl)silane. The end-capping and C8 binding procedure was analyzed by Fourier transform infrared (FTIR) spectroscopy and morphology of C8 particles were characterized by scanning electron microscope (SEM).
Deformation transfer for triangle meshes (2004)

Deformation transfer applies the deformation exhibited by a source triangle mesh onto a different target triangle mesh. Our approach is general and does not require the source and target to share the same number of vertices or triangles, or to have identical connectivity. The user builds a correspondence map between the triangles of the source and those of the target by specifying a small set of vertex markers. Deformation transfer computes the set of transformations induced by the deformation of the source mesh, maps the transformations through the correspondence from the source to the target, and solves an optimization problem to consistently apply the transformations to the target shape. The resulting system of linear equations can be factored once, after which transferring a new deformation to the target mesh requires only a backsubstitution step. Global properties such as foot placement can be achieved by constraining vertex positions. We demonstrate our method by retargeting full body key poses, applying scanned facial deformations onto a digital character, and remapping rigid and non-rigid animation sequences from one mesh onto another.
Estudio de resonancias parásitas en antenas corrugadas (2001)

Trabajo presentado al XVI Symposium de la Union Cientifica Internacional de Radio (URSI’01). Madrid, 2001.
A PROSPECTIVE CONTROLLED TRIAL OF COLD-STORAGE VERSUS MACHINE-PERFUSION PRESERVATION IN CADAVERIC RENAL TRANSPLANTATION (1990)

A prospective controlled study was carried out in 60 consecutive cadaver renal donors comparing cold storage to pulsatile machine-perfusion preservation. Each donor served as its own control, by allocating one of the kidneys to each of the two preservation methods. There were 51 evaluable pairs of kidneys. Recipient age, panel-reactive antibody level, history of prior renal transplant, and immunosuppressive regimen were similar in the two preservation groups. Almost all recipients were treated with cyclosporine, and over 50% received antilymphoblast globulin. Total cold ischemic time was 1262 +/- 387 min in the machine-perfused group and 1309 +/- 426 min in the cold-storage group (P = NS). Prolonged ischemia (greater than 24 hr) occurred in 31% of machine-perfused and 22% of cold-stored kidneys (P = NS). Post-operative serum creatinine levels at 1, 7, and 30 days posttransplant were similar in both groups. Dialysis requirements were also similar, with 21 recipients of machine-perfused kidneys (41%) requiring at least one dialysis treatment compared to 16 patients (31%) in the cold-stored group (P = NS); the mean number of dialysis treatments required was 3.14 +/- 1.46 and 3.06 +/- 1.29, respectively (P = NS). Long ischemic time (greater than 24 hr) was associated with a higher rate of dialysis requirement in both groups, but in neither case did this achieve statistical significance. The distribution of graft losses within the first 30 days was similar in both groups, and the incidence of preservation-related graft failure was not significantly different. These results demonstrate that, in the cyclosporine era, machine perfusion offers no significant advantages over cold storage for cadaver renal preservation. Because machine perfusion is considerably more expensive and cold storage is simpler and facilitates the logistics of organ sharing, we recommend simple hypothermic storage of renal allografts as the preservation method of choice.