gebhart/patrepeval huggingface dataset:
Binding Semantic to a Sketch Based Query Specification Tool (2006)

Abstract: In image retrieval systems, user information needs is expressed using multiple types of query. Unfortunately, due to user subjectivity perception to visual features and semantic depths of images, the conventional query submitted to the system encounter difficulties to identify user information need. The blooming of interest in semantic image retrieval requires current research direction to be more concerned into semantics. This paper describes our on-going research work in formulating a new query approach for image databases. The enabling technologies of the semantic web formed the building blocks of our query specification. Using the MRML as the communication protocol, XML in the form of SVG as the visual content description (sketch based) and RDF for binding the semantic meanings of images, this research provides an initial framework towards semantic based query formulation framework.
Regenerative braking of battery powered converter controlled PM synchronous machines (2013)

The powertrains of hybrid electric vehicles incorporate motor-generator units that can contribute propulsion torque or braking torque in response to driver demands and power management logic. A key feature of these motor-generator units is their ability to recover kinetic energy, through regenerative braking, that would otherwise be dissipated as heat. This paper clarifies and resolves several critical issues relating to regenerative braking of battery powered converter controlled permanent-magnet synchronous machines, including the determination of boundaries in the torque-speed plane defining the regenerative braking capability region and the determination of feasible operating points within that capability region that lead to maximum battery-pack recharge current.
Crystal Phases of Nonohmic Zinc Oxide Ceramics (1978)

The crystal phases of nonohmic ZnO ceramics, having Bi2O3, Sb2O3, Co2O3, MnO2 and Cr2O3 as additives, have been investigated by classifying and clarifying them as a function of the amounts of the additives and sintering temperature, and synthesizing their single phases. These ceramics consist of ZnO phase dissolving Co and Mn components, spinel phase of Zn7Sb2O12 dissolving Co, Mn and Cr components, and Bi-rich phases (B, C, D or B'). The B-phase is a δ-Bi2O3 type phase (a=5.59 Å) having a fundamental composition of 12Bi2O3·Cr2O3. The C-phase is a tetragonal phase (a=7.76 Å, c=5.75 Å) having a fundamental composition of 14Bi2O3·Cr2O3. The D-phase is a β-Bi2O3 type tetragonal phase (a=10.93 Å, c=5.62 Å) dissolving a large amount of Zn component and a small amount of Sb component. The B'-phase is also a δ-Bi2O3 type phase (a=5.48 Å) formed in the system Bi2O3–ZnO–Sb2O3. A solid solution between B and B'-is formed. The nonohmic property of ZnO ceramics is improved with the changes of phases, B→C→D or D+B', by raising the sintering temperature. The extinction of the nonohmic property caused by the change in the amounts of additives and sintering temperature corresponds to that of ZnO or Bi-rich phases in the ceramics.
Hierarchical Graphene–Carbon Fiber Composite Paper as a Flexible Lateral Heat Spreader (2014)

As a low dimensional crystal, graphene attracts great attention as heat dissipation material due to its unique thermal transfer property exceeding the limit of bulk graphite. In this contribution, flexible graphene–carbon fiber composite paper is fabricated by depositing graphene oxide into the carbon fiber precursor followed by carbonization. In this full‐carbon architecture, scaffold of one‐dimensional carbon fiber is employed as the structural component to reinforce the mechanical strength, while the hierarchically arranged two‐dimensional graphene in the framework provides a convenient pathway for in‐plane acoustic phonon transmission. The as‐obtained hierarchical carbon/carbon composite paper possesses ultra‐high in‐plane thermal conductivity of 977 W m −1 K −1 and favorable tensile strength of 15.3 MPa. The combined mechanical and thermal performances make the material highly desirable as lateral heat spreader for next‐generation commercial portable electronics.
Prospective Study of Union Rate of Open Tibial Fractures Treated with Locked, Unreamed Intramedullary Nails (1994)

This study was designed to verify whether open tibial fractures treated with an unreamed tibial nail would heal without the placement of a bone graft. Twenty-nine consecutive patients treated with unreamed tibial nails were prospectively followed to study fracture healing patterns. Monthly radiographs were studied for signs of healing without additional surgical intervention until it appeared that the fracture was a delayed union or nonunion. The average patient age was 31 years (range 16-80). Twenty-seven of the fractures were open (16 grade I, 8 grade II, 3 grade IIIA), with two additional fractures with compartment syndrome open by surgical intent. All fractures resulted from high-energy trauma. Twenty-two fractures were comminuted or segmental. Fifteen fractures healed without secondary intervention at an average of 148 days (range 98-243). Fourteen fractures needed additional intervention from between 3 and 7 months postinjury, with an average intervention of 1.9 per fracture. The two groups (primary healing and delayed union) were similar in fracture location, mechanism, and grade of injury. However, 13 of 14 delayed unions had comminuted or segmental fractures and required statically locked nails in 13 of the 14 fractures. Our experience suggests that the union rate is not improved with unreamed nails over that in the historical external fixator literature unless secondary surgical procedures are performed to change the local biology and enhance healing. We suggest early nail dynamization and bone grafting at 6 weeks to enhance and shorten healing time.
Identification of Risk Factors in Patients Treated for First Relapse of Hodgkin's Disease (1994)

This review focuses on potential risk factors in patients relapsing with Hodgkin's disease after a first chemotherapy/radiation therapy induced complete remission. This patient group usually presents with highly treatment responsive disease and has become one of the target groups for consideration of salvage high dose chemotherapy with stem cell/autologous marrow support (HDC/ABMT). It is currently not clear to which patients in first relapse this treatment should be offered. The knowledge of certain risk factors could be of great help in assessing such patients. A first group of risk factors are those assessable at initial diagnosis: sex, age, histology, Ann Arbor stage, tumour bulk and some laboratory parameters. A second group of risk factors are those present at the time of relapse: time to relapse, extent of disease at relapse, B-symptoms and performance status, extra nodal lesions at relapse or a relapse within an irradiated field. Age below 50 years seems to exert a small influence on outcome but becomes a major problem above that. There is a small number of characteristics such as the time from the end of initial treatment to relapse or B-symptoms at relapse which seem to be the most prominent factors predicting for freedom from second failure (FF2F). Patients who relapse more than one year after finishing primary chemotherapy and who are free of B symptoms at relapse have a quite favourable outcome after salvage treatment. If their disease is not bulky and is confined entirely to a modest number of previously unirradiated lymph node sites, wide field irradiation offers a reasonable chance of disease control. If their recurrence is bulky, extra-nodal or in a previously irradiated site, the patient's prognosis after HDC/ABMT is excellent. Patients who relapse less than one year after primary chemotherapy or with B symptoms at the time of relapse have a less satisfactory outcome after any available salvage treatment. Trials comparing various HDC/ABMT regimens or novel approaches built on standard dose chemotherapy and irradiation are needed to find better treatments for such patients. Such patients with early or symptomatic relapses who cannot be enrolled in prospective comparative trials should be offered HDC/ABMT while we search for better treatments. Larger trials with a prospective analysis of the risk factors are needed for us to be able to decide which treatment will be the optimal choice for our patients.
ECG compression and labview implementation (2009)

It is often very difficult for the patient to tell the difference between angina symptoms and heart attack symptoms, so it is very important to recognize the signs of heart attack and immediately seek medical attention. A practical case of this type of remote consultation is examined in this paper. To deal with the huge amount of electrocardiogram (ECG) data for analysis, storage and transmission; an efficient ECG compression technique is needed to reduce the amount of data as much as possible while preserving the clinical significant signal for cardiac diagnosis. Here the ECG signal is analyzed for various parameters such as heart rate, QRS-width, etc. Then the various parameters and the compressed signal can be transmitted with less channel capacity. Comparison of various ECG compression techniques like TURNING POINT, AZTEC, CORTES, FFT and DCT it was found that DCT is the best suitable compression technique with compression ratio of about 100:1. In addition, different techniques are available for implementation of hardware components for signal pickup the virtual implementation with labview is also used for analysis of various cardiac parameters and to identify the abnormalities like Tachycardia, Bradycardia, AV Block, etc. Both hardware and virtual implementation are also detailed in this context.
Maize LAZY1 Mediates Shoot Gravitropism and Inflorescence Development through Regulating Auxin Transport, Auxin Signaling, and Light Response (2013)

Auxin is a plant hormone that plays key roles in both shoot gravitropism and inflorescence development. However, these two processes appear to be parallel and to be regulated by distinct players. Here, we report that the maize (Zea mays) prostrate stem1 mutant, which is allelic to the classic mutant lazy plant1 (la1), displays prostrate growth with reduced shoot gravitropism and defective inflorescence development. Map-based cloning identified maize ZmLA1 as the functional ortholog of LAZY1 in rice (Oryza sativa) and Arabidopsis (Arabidopsis thaliana). It has a unique role in inflorescence development and displays enriched expression in reproductive organs such as tassels and ears. Transcription of ZmLA1 responds to auxin and is repressed by light. Furthermore, ZmLA1 physically interacts with a putative auxin transport regulator in the plasma membrane and a putative auxin signaling protein in the nucleus. RNA-SEQ data showed that dozens of auxin transport, auxin response, and light signaling genes were differentially expressed in la1 mutant stems. Therefore, ZmLA1 might mediate the cross talk between shoot gravitropism and inflorescence development by regulating auxin transport, auxin signaling, and probably light response in maize.
Supplementary Figure 4 from Oncolytic Vaccinia Virus Disrupts Tumor-Associated Vasculature in Humans (2023)

&lt;p&gt;Supplementary Figure 4 PDF file - 69K, Day 5 enhancement waterfall plot&lt;/p&gt;
Faculty Opinions recommendation of Structure-Based Design of Non-natural Macrocyclic Peptides That Inhibit Protein-Protein Interactions. (2017)

Macrocyclic peptides can interfere with challenging biomolecular targets including protein-protein interactions.Whereas there are various approaches that facilitate the identification of peptide-derived ligands, their evolution into higher affinity binders remains a major hurdle.We report a virtual screen based on molecular docking that allows the affinity maturation of macrocyclic peptides taking non-natural amino acids into consideration.These macrocycles bear large and flexible substituents that usually complicate the use of docking approaches.A virtual library containing more than 1400 structures was screened against the target focusing on docking poses with the core structure resembling a known bioactive conformation.Based on this screen, a macrocyclic peptide 22 involving two non-natural amino acids was evolved showing increased target affinity and biological activity.Predicted binding modes were verified by X-ray crystallography.The presented workflow allows the screening of large macrocyclic peptides with diverse modifications thereby expanding the accessible chemical space and reducing synthetic efforts.
Cirurgia de Bentall - De Bono associada a revascularização direta do miocárdio: relato de caso (1997)

A cirurgia preconizada para correção de ectasia ânulo âortica é a operação de Bentall e De Bono. A associação desta doença com aterosclerose coronária é infreqüente. Os autores relatam o caso de uma paciente de 57 anos portadora dessa associação, que foi submetida à cirurgia de Bentall e De Bono com concomitante revascularização do miocárdio. Com auxílio de circulação extracorpôrea e proteção miocárdica com retroplegia sangüínea gelada, realizaram a troca valvar aórtica e a porção ascendente da aorta por tubo valvulado de pericárdio bovino e a revascularização do miocárdio utilizando a anastomose da artéria torácica interna com a artéria interventricular anterior e de um segmento de veia safena saindo em ipsilon da artéria torácica interna para o ramo marginal da circunflexa. Tanto a operação como o pós-operatório transcorreram sem intercorrências.
Multi-Rate Geographic Opportunistic Routing in Wireless Ad Hoc Networks (2007)

Routing in wireless ad hoc networks is challenging mainly due to unreliable wireless links/channels. Geographic opportunistic routing (GOR) was proposed to cope with the unreliable transmissions by exploiting the broadcast nature and spatial diversity of the wireless medium. Previous studies on GOR has focused on networks with a single channel rate. The capability of supporting multiple channel rates, which is common in wireless systems, has not been carefully studied for GOR. In this paper, we carry out a study on the impacts of multiple rates, as well as candidate selection, prioritization and coordination, on the throughput of GOR. We propose a new local metric, expected one-hop throughput (EOT), to characterize the trade-off between the packet advancement and medium time cost. We further propose a local rate adaptation and candidate selection algorithm to maximize this metric. Simulation results show that the multi-rate GOR (MGOR) incorporating the rate adaptation and candidate selection algorithm efficiently forwards the packet to the destination with higher throughput than the corresponding geographic routing and pure opportunistic routing operating at any single rate. EOT is shown to be a good local metric to achieve high path throughput for MGOR.
Thermal flow measurements at Gr/Re/sup 2/≫1 by silicon anemometry (1999)

We present the first characteristics of air flow measurements in the mixed convective region with strong buoyancy effects (Gr/Re/sup 2//spl Gt/1), using a thermal silicon double-Wheatstone-bridge vector sensor. The alternating direction method is applied to eliminate additive drift influences. The upper limit on the mixed convective region is experimentally defined to be given by Gr/Re/sup 2/=[0.3-0.8]. Flow velocity measurements of down to 1 mm/s (Reynolds /spl ap/ 0.3) are realized with an accuracy better than 98%.
VIRTUAL GRAPHIC REPRESENTATION OF CONSTRUCTION EQUIPMENT FOR DEVELOPING A 3D EARTHWORK BIM (2017)

BIM provides a visualization of the construction design that allows a construction manager to review the construction process and the information that is associated with the progress. BIM is usually applied to modeling struc­tural objects with parametric geometry where the sequence of process can be predefined. However, BIM technology can also be applied to objects with irregular shape where parametric modeling is not possible such as earthwork topography based on TIN (Triangular Irregular Network).The objective of this research is to develop a 3D earthwork BIM method­ology and provide a graphic simulation that is capable of assisting construction equipment operators during excavation work. The 3D earthwork BIM presents a modeling technique that involves integrating hardware and software technolo­gies. This combination of technologies is used to represent the actual excavator configuration in a 3D virtual environ­ment. When it is applied to actual excavation work, it was proved that the 3D earthwork BIM could synchronize the virtual excavator configuration with the actual excavator configuration during excavation work in real time.
Elevated neurofibrillary tau levels emerge with subthreshold Aβ accumulation in Down syndrome (2021)

Abstract Background Adults with Down syndrome (DS) are genetically predisposed to Alzheimer’s disease (AD) and accumulate beta‐amyloid plaques (Aβ) early in life. The aim of this study was to evaluate neurofibrillary tau deposition in DS between groups of Aβ negative (A‐) and subthreshold Aβ accumulators (subthreshold A+). Method A total of 130 adults with DS (age=36.5 [6.77] years) and 40 healthy, non‐DS sibling controls (43.2 [12.6] years) underwent T1w‐MRI, [C‐11]PiB and [F‐18]AV‐1451 PET scans. MRI images were processed using FreeSurfer v5.3.0 to generate ROI masks encompassing the Braak staging of tau pathology. PiB and AV‐1451 SUVr images were generated using a cerebellar gray matter reference region. Global Aβ burden was calculated using the amyloid load metric (Aβ L ). Of the 130 DS adults, N=26 were classified as subthreshold A+ (13.3 &lt; Aβ L &lt; 20), and the remaining 104 were classified as A‐ (Aβ L &lt; 13.3). AV‐1451 images were averaged for each group, and the difference was taken to generate a ΔSUVr image. Regional tau was assessed using AV‐1451 SUVr Z‐scores relative to the sibling control group. Partial volume correction was performed on AV‐1451 SUVrs in the Braak I‐II regions using the geometric transfer matrix method. Braak regional SUVr Z‐scores were then compared across the two groups using Student’s t‐tests while adjusting for imaging site. The analysis was then repeated using an age‐matched sample of A‐ (N=68) and subthreshold A+ (N=26) DS. Result The SUVr difference image revealed higher AV‐1451 uptake in Braak regions I‐III for the subthreshold A+ group (Figure 1). Student’s t‐tests revealed significantly higher AV‐1451 uptake in Braak regions I‐III for the subthreshold A+ group (Table 1). No difference in AV‐1451 uptake was observed between groups in Braak regions IV‐VI (Table 1). Higher AV‐1451 uptake in Braak regions I‐III was also observed in the subthreshold A+ group when compared to the age‐matched A‐ group (Table 2). Conclusion These results show that subthreshold Aβ in DS is accompanied by elevated tau in the early Braak stage regions. These findings indicate that there is a short latency between the onset of Aβ and the spread of neurofibrillary tau in DS.
Turmeric Herb Extract-Incorporated Biopolymer Dressings with Beneficial Antibacterial, Antioxidant and Anti-Inflammatory Properties for Wound Healing (2023)

Bacterial infection and inflammation caused by excess oxidative stress are serious challenges in chronic wound healing. The aim of this work is to investigate a wound dressing based on natural- and biowaste-derived biopolymers loaded with an herb extract that demonstrates antibacterial, antioxidant, and anti-inflammatory activities without using additional synthetic drugs. Turmeric extract-loaded carboxymethyl cellulose/silk sericin dressings were produced by esterification crosslinking with citric acid followed by freeze-drying to achieve an interconnected porous structure, sufficient mechanical properties, and hydrogel formation in situ in contact with an aqueous solution. The dressings exhibited inhibitory effects on the growth of bacterial strains that were related to the controlled release of the turmeric extract. The dressings provided antioxidant activity as a result of the radical scavenging effect on DPPH, ABTS, and FRAP radicals. To confirm their anti-inflammatory effects, the inhibition of nitric oxide production in activated RAW 264.7 macrophages was investigated. The findings suggested that the dressings could be a potential candidate for wound healing.
Porcine Lactic Dehydrogenase in the Serum of Patients Treated by Extracorporeal Porcine Liver Perfusion (1969)

Porcine lactic dehydrogenase (L.D.H.) has been found in the serum of four patients in hepatic coma treated by extracorporeal porcine liver perfusion. A comparison between the porcine L.D.H. isoenzyme pattern in the patients' serum and that in porcine serum and liver extract indicates that the porcine L.D.H. is derived from the pig liver. This finding reflects damage to the pig liver cells sustained during porcine hepatectomy and subsequent perfusion. Possibly patients might develop immune reactions against porcine substances when these entered the circulation, especially if perfusion was repeated after an interval of some time.
Molecularly dispersed nickel complexes on N-doped graphene for electrochemical CO2reduction (2023)

In this work, new hybrid catalysts based on molecularly dispersed nickel complexes on N-doped graphene were developed for electrochemical CO<sub>2</sub> reduction (ECR). Nickel(II) complexes (1-Ni, 2-Ni), and a new crystal structure ([2-Ni]Me), featuring N<sub>4</sub>-Schiff base macrocycles, were synthesized and investigated for their potential in ECR. Cyclic voltammetry (CV) in NBu<sub>4</sub>PF<sub>6</sub>/CH<sub>3</sub>CN solution demonstrated that the nickel complexes bearing N-H groups (1-Ni and 2-Ni) showed a substantial current enhancement in the presence of CO<sub>2</sub>, while the absence of N-H groups ([2-Ni]Me) resulted in an almost unchanged voltammogram. This indicated the necessity of the N-H functionality towards ECR in aprotic media. All three nickel complexes were successfully immobilized on nitrogen-doped graphene (NG) <i>via</i> non-covalent interactions. All three Ni@NG catalysts exhibited satisfactory CO<sub>2</sub>-to-CO reduction in aqueous NaHCO<sub>3</sub> solution with the faradaic efficiency (FE) of 60-80% at the overpotential of 0.56 V <i>vs.</i> RHE. The ECR activity of [2-Ni]Me@NG also suggested that the N-H moiety from the ligand is less important in the heterogeneous aqueous system owing to viable hydrogen-bond formation and proton donors from water and bicarbonate ions. This finding could pave the way for understanding the effects of modifying the ligand framework at the N-H position toward fine tuning the reactivity of hybrid catalysts through molecular-level modulation.
Intersection Prediction for Accelerated GPU Ray Tracing (2021)

Ray tracing has been used for years in motion picture to generate photorealistic images while faster raster-based shading techniques have been preferred for video games to meet real-time requirements. However, recent Graphics Processing Units (GPUs) incorporate hardware accelerator units designed for ray tracing. These accelerator units target the process of traversing hierarchical tree data structures used to test for ray-object intersections. Distinct rays following similar paths through these structures execute many redundant ray-box intersection tests. We propose a ray intersection predictor that speculatively elides redundant operations during this process and proceeds directly to test primitives that the ray is likely to intersect. A key aspect of our predictor strategy involves identifying hash functions that preserve enough spatial information to identify redundant traversals. We explore how to integrate our ray prediction strategy into existing GPU pipelines along with improving the predictor effectiveness by predicting nodes higher in the tree as well as regrouping and scheduling traversal operations in a low cost, judicious manner. On a mobile class GPU with a ray tracing accelerator unit, we find the addition of a 5.5KB predictor per streaming multiprocessor improves performance for ambient occlusion workloads by a geometric mean of 26%.