gebhart/patrepeval huggingface dataset:
Computer vision applications for patients monitoring system (2012)

Patient Monitoring system has been one of the most important devices used in hospitals. It helps to provide a means for caregivers to regularly observe patients in multiple intensive care units from a single remote location. The system may provide an addition layer of care, which includes software tools that support analysis of patients' values, vital signs, trends etc. In addition, from clinical observations, without a proper monitoring system, abnormal activities in wards such as unbalanced walking, bed climbing, and irregular body posing can lead to serious consequences, for instance falling, pains or injuries. In any of these incidents occurring, the only information that the medical staffs may be able to access is the occurrence itself and possibly the degree of the incident. In this project, cameras are utilized together to help in monitoring the activities of the patients. Already, technologies in video surveillance system and computer vision are widely acknowledged to make monitoring tasks easier and more effectively. The technologies can assist in gathering details of the activities and actions for better assessments. With the collaboration and discussion with the nurses, the integrated system will provide alarming features to draw attentions from the nurses for detecting falls, risky movements, and irregular actions of the patients. Furthermore, information of the monitored activities is recorded for further studies.
Observation and Control of Interfacial Defects in ZnO/ZnSe Coaxial Nanowires (2014)

ZnO/ZnSe coaxial nanowires with dierent ZnO core diameters were synthesized by using a two-step chemical vapor deposition. The scanning electron microscopy images demonstrated that the coaxial nanowires with small ZnO core diameter had the smoother surface than that with large ZnO core diameter. A coherent ZnSe layer with wurtzite structure was observed in the nanowire interface between the ZnO core and the ZnSe shell by high resolution transmission electron microscopy. This coherent layer is benecial to reduce the defect density and improve the crystal quality by suppressing the phase transition. It was found that the coherent thickness was signicantly related to the ZnO core diameter. For the nanowire with large ZnO core, a thin critical thickness of 23 nm was obtained. As a result, a layer of zinc blende ZnSe appeared outside the nanowire, and a lot of defects existed in the interface between the ZnSe layers with dierent phase structures. For the nanowire with small ZnO core, however, the critical thickness increased and a coherent coaxial structure was observed with the same lattice spacing in the ZnO core and the ZnSe shell. To obtain defect-free coaxial nanowire, an optimal structure was also proposed by theoretical calculation.
Wearable System-on-a-Chip UWB Radar for Health Care and its Application to the Safety Improvement of Emergency Operators (2007)

A new wearable system-on-a-chip UWB radar for health care systems is presented. The idea and its applications to the safety improvement of emergency operators are discussed. The system consists of a wearable wireless interface including a fully integrated UWB radar for the detection of the heart beat and breath rates, and a IEEE 802.15.4 ZigBee radio interface. The principle of operation of the UWB radar for the monitoring of the heart wall is explained hereinafter. The results obtained by the feasibility study regarding its implementation on a modern standard silicon technology (CMOS 90 nm) are reported, demonstrating (at simulation level) the effectiveness of such an approach and enabling the standard silicon technology for new generations of wireless sensors for heath care and safeguard wearable systems.
Identification of the Major Starch Synthase in the Soluble Fraction of Potato Tubers (1996)

Jacqueline Marshall, Christopher Sidebottom, Martin Debet, Cathie Martin, Alison M. Smith, Anne Edwards, Identification of the Major Starch Synthase in the Soluble Fraction of Potato Tubers, The Plant Cell, Vol. 8, No. 7 (Jul., 1996), pp. 1121-1135
Role of Lung Microbiome in Innate Immune Response Associated With Chronic Lung Diseases (2020)

Respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), lung fibrosis, and lung cancer, pose a huge socio-economic burden on society and are one of the leading causes of death worldwide. In the past, culture-dependent techniques could not detect bacteria in the lungs, therefore the lungs were considered a sterile environment. However, the development of culture-independent techniques, particularly 16S rRNA sequencing, allowed for the detection of commensal microbes in the lung and with further investigation, their roles in disease have since emerged. In healthy individuals, the predominant commensal microbes are of phylum Firmicutes and Bacteroidetes, including those of the genera <i>Veillonella</i> and <i>Prevotella</i>. In contrast, pathogenic microbes (<i>Haemophilus, Streptococcus, Klebsiella, Pseudomonas</i>) are often associated with lung diseases. There is growing evidence that microbial metabolites, structural components, and toxins from pathogenic and opportunistic bacteria have the capacity to stimulate both innate and adaptive immune responses, and therefore can contribute to the pathogenesis of lung diseases. Here we review the multiple mechanisms that are altered by pathogenic microbiomes in asthma, COPD, lung cancer, and lung fibrosis. Furthermore, we focus on the recent exciting advancements in therapies that can be used to restore altered microbiomes in the lungs.
Leaf Petiole Epinasty in Poinsettias1 (1980)

Abstract Endogenous ethylene levels and ethylene production rates increased in excised leaf petioles of plants that were previously bent due to sleeving of potted Euphorbia pulcherrima Wild. cvs. Annette Hegg Dark Red and Improved Rochford. Intact leaf blades were required during the sleeving period for petiole epinasty to occur. Storage of unsleeved plants for 66 or 70 hours under 4% O 2 or 150 mm Hg enhanced epinasty and endogenous ethylene levels. Sleeved plants under these same environmental conditions exhibited an equal proportion of epinastic petioles as sleeved plants under normal conditions but the endogenous ethylene level upon removal from storage was highest in the 150 mm Hg treatment when compared to all other treatments.
Enantioselective Hydrogenation of Enamides Catalyzed by Chiral Rhodium—Monodentate Phosphite Complexes. (2003)

Abstract For Abstract see ChemInform Abstract in Full Text.
Design and application of a novel high precision and low cost electronic tachogenerator for sensor-based brushless direct current motor drivers (2017)

This study presents a precise speed control method for Brushless Direct Current (BLDC) Motors using an electronic tachogenerator (ETg) instead of an electro-mechanical tachogenerator. Most commonly used three-phase BLDC motors have three position sensors for rotor position data to provide commutation among stator windings. Aforementioned position sensors are usually Hall-effect sensors delivering binary-high and binary-low data as long as the motor rotates. These binary sets from three Hall-effect sensors can be used as an analogue rotor speed signal for closed loop applications. Each position sensor signal is apart from 120 electrical degrees. By using an electronic circuitry, a combination of position sensor signals is converted to the analogue signal providing an input to a PI speed controller. To implement this, a frequency to voltage converter has been used in this study. Then, the analogue speed signal has been evaluated as rotor speed data in comparison with the reference speed. So, an ETg system has been successfully achieved in place of an electro-mechanical tachogenerator for BLDC motor speed control. The proposed ETg has been tested under various speed conditions on an experimental setup. Employed tests and obtained results show that the proposed low-cost speed feedback sub-system can be effectively used in BLDC motor drive systems. Through the proved method and designed sub-system, a new motor controller chip with a speed feedback capability has been aimed.
Repair of ventricular septal defect and left ventricular aneurysm following blunt chest trauma (2002)

In children, even minor trauma to the chest can result in cardiac injury. We describe a case of a 13-year-old boy who received blunt chest trauma during a motorcycle accident. He was initially symptom-free but later complained of persistent chest pain and a murmur was noted. An anterior muscular ventricular septal defect was detected one day after the accident, and a left ventricular pseudo-aneurysm developed days later. Both were successfully repaired 3 weeks after the injury.
Effect of antenna separation on the capacity of BLAST in correlated channels (2000)

As the base station is usually placed above local clutter, the angular spectrum incident on the base is narrow, inducing correlation among base antenna signals, which reduces the capacity of a multiple transmit and receive antenna systems. In this work the general expression for link capacity is derived, when there is correlation among receive antennas and among transmit antennas. It is found that an antenna separation of 4 wavelengths between nearest neighbors in a linear base array of dually polarized antennas allows one to achieve 80% of the capacity attainable in the uncorrelated antenna case.
Isolation and identification of the linear and cyclic oligomers of poly(ethylene terephthalate) and the mechanism of cyclic oligomer formation (1969)

Abstract Chromatographic techniques are described which can be used to isolate and identify the linear and the cyclic oligomers of poly(ethylene terephthalate). Extraction of the oligomers from high molecular weight polymer produces at least eight different cyclic species, some of which are isolated and identified. The cyclic dimer, the cyclic trimer, and the cyclic tetramer of poly(ethylene terephthalate) have also been prepared by acid chloride esterification and transesterification. Similar materials can be isolated from the ethylene glycol distillate obtained from the polymer melt. The mechanism of cyclic oligomer formation has been studied by determining the rate of formation of the cyclic oligomers during polymerization and during melt extrusion of polyesters which did not initially contain cyclic oligomers. The rate of formation depends upon the concentration of hydroxyl groups; hence, the cyclic oligomers are formed by transesterification from the chain ends or cyclodepolymerization. Therefore oligomers are inevitably produced during polymerization.
Assessment of Stimulated Single-Fiber Electromyography in Paralytic Muscles of Patients with Spinal Cord Injury (1993)

Neuronal dropout accompanied with axonal degeneration may occur below the level of cord lesion after spinal cord injury (SCI). By using a sensitive electrodiagnostic method of stimulated single fiber electromyography (SFEMG), it is possible to assess the functional integrity of neuromuscular transmission in paralytic muscles of SCI. Neuromuscular jitter and fiber density were measured in 21 anterior tibial muscles of 18 patients with SCI and 11 muscles in 11 normal controls. The results showed an increased mean jitter value but without increased fiber density in SCI patients. There is a positive correlation between the increased jitter and the disease duration from the onset of cord lesion to the time of SFHMG test. This provides an electrophysiological evidence of axonal degeneration and dysfunction of neuromuscular transmission below the level of cord lesion in SCI. Also the neural degeneration may become prominent in the later course of the disease.
Lead Immobilization and Hydroxamate Ligand Promoted Chloropyromorphite Dissolution (2014)

The immobilization of lead, a major environmental contaminant, through phosphate amendments to form the sparingly soluble lead phosphate mineral chloropyromorphite [Pb 5 (PO 4 ) 3 ] (CPY) is an effective in situ strategy for soil remediation. An important question is the effect of microbial processes on this remediation. Here, we investigate the role of the microbial siderophore ligand desferrioxamine-D 1 (DFO-D 1 ) and its analog acetohydroxamic acid (aHA) in CPY lability using pH-dependent batch dissolution kinetics and model calculations. Both (0.01) M aHA and (0.00024) M DFO-D 1 are similarly effective and enhance lead release from CPY by more than two orders of magnitude at pH &gt; 6 compared to in the absence of ligands. This is consistent with model calculations of pH-dependent (aqueous) complexation of lead with hydroxamate ligands. More importantly, pH-dependent ligand sorption is predictive of its ligand promoted dissolution behavior. Our results suggest that organic ligands can significantly increase CPY lability at alkaline pHs in soils and sediments and that addition of P amendments to immobilize Pb as CPY may only be successful at acid pHs.
A Face Based Fuzzy Vault Scheme for Secure Online Authentication (2010)

Biometric template protection is becoming a hot research recently. Fuzzy vault is a key binding biometric cryptosystem scheme. It binds a key with the biometric template and obtains the helper data. The main problem of fuzzy vault is that it can not provide the diversity and revocability. In this paper we propose a face based fuzzy vault scheme for online authentication. At the user side, the user's identity, the transformed template and key generated from user's password are always provided to the server. At the registration stage, fuzzy vault encoding is implemented using both key and transformed template. And then the fuzzy vault is encrypted using digital signature. At the authentication stage, by the identity claimed by user, the corresponding fuzzy vault will be checked, If it has been changed, the authentication will be failed. Otherwise, the key is recovered from the transformed template using fuzzy vault decoding, in which the nearest distance is computed for point matching. If the recovered key is same as that provided by user, the authentication will be successful. Otherwise it will be failed. The contribution of this paper include: the transformed template instead of face template is used, which will enable the system to provide diversity and revocability. The nearest distance based matching algorithm tolerates the much intra-class variation. The digital signature can be used to check if the fuzzy vault has been changed. The experimental results show that the proposed scheme achieves promising results.
Blue light-emitting diode built-in contact lens electrode can record human S-cone electroretinogram. (1995)

Results indicate that the b-wave recorded with 3-Hz blue stimuli is elicited from the S-cone system. This simple technique is useful for testing the human blue cone system.
Application of positron annihilation lifetime spectroscopy in studies of crystallization processes (2003)

This study concerns the crystallization process observed in three-component Vycor glass heated in the temperature range from 875 to 975 K. PALS and X-ray diffraction results confirmed partial crystallization of silica in the studied material depending on the time and temperature of thermal treatment. It is shown that PALS can be treated as a new method for investigation of the crystallinity degree. Increased crystallization degree obtained from X-ray diffraction data is perfectly correlated with o-Ps intensity decrease determined from PALS spectra for each temperature.
Manufacturing Aspects Relating to the Effects of Direct Current on the Tensile Properties of Metals (2007)

For metals, deformation is commonly conducted at elevated temperatures, reducing the overall process energy and cost. However, elevating the temperature has many drawbacks, including high tool/die adhesions, environmental reactivity, etc. Therefore, this study examines using an electrical current to reduce the deformation energy and presents electricity’s effects on the tensile properties of various materials. The influences of strain rate and cold work are also investigated. The results demonstrate that, when current flows through a metallic specimen, the material’s yield strength, flow stress, and elastic modulus are decreased; strain weakening occurs; and the total energy of deformation is decreased. These changes in the engineering stress-strain behavior occurred in all of the materials tested and are much greater than can be accounted for by resistive heating. However, the effects diminish with increasing strain rate. The analysis shows that applying electricity during deformation provides a viable alternative to increasing the workpiece temperature for deformation-based manufacturing processes.
Phosphine-stabilised Au9 clusters interacting with titania and silica surfaces: The first evidence for the density of states signature of the support-immobilised cluster (2014)

Chemically made, atomically precise phosphine-stabilized clusters Au9(PPh3)8(NO3)3 were deposited on titania and silica from solutions at various concentrations and the samples heated under vacuum to remove the ligands. Metastable induced electron spectroscopy was used to determine the density of states at the surface, and X-ray photoelectron spectroscopy for analysing the composition of the surface. It was found for the Au9 cluster deposited on titania that the ligands react with the titania substrate. Based on analysis using the singular value decomposition algorithm, the series of MIE spectra can be described as a linear combination of 3 base spectra that are assigned to the spectra of the substrate, the phosphine ligands on the substrate, and the Au clusters anchored to titania after removal of the ligands. On silica, the Au clusters show significant agglomeration after heat treatment and no interaction of the ligands with the substrate can be identified.
Sensitivity profiles from an array of coils for encoding and reconstruction in parallel (SPACE RIP) (2000)

A new parallel imaging technique was implemented which can result in reduced image acquisition times in MRI. MR data is acquired in parallel using an array of receiver coils and then reconstructed simultaneously with multiple processors. The method requires the initial estimation of the 2D sensitivity profile of each coil used in the receiver array. These sensitivity profiles are then used to partially encode the images of interest. A fraction of the total number of k-space lines is consequently acquired and used in a parallel reconstruction scheme, allowing for a substantial reduction in scanning and display times. This technique is in the family of parallel acquisition schemes such as simultaneous acquisition of spatial harmonics (SMASH) and sensitivity encoding (SENSE). It extends the use of the SMASH method to allow the placement of the receiver coil array around the object of interest, enabling imaging of any plane within the volume of interest. In addition, this technique permits the arbitrary choice of the set of k-space lines used in the reconstruction and lends itself to parallel reconstruction, hence allowing for real-time rendering. Simulated results with a 16-fold increase in temporal resolution are shown, as are experimental results with a 4-fold increase in temporal resolution. Magn Reson Med 44:301-308, 2000.
Profile and Flight Time Analysis of Bovine Insulin Clusters as a Probe of Matrixassisted Laser DesorptionIonization Ion Formation Dynamics (1997)

Detailed ion signal profile and flight time analyses were performed on the time-of-flight signals obtained for bovine insulin cluster ions produced by matrix-assisted laser desorption/ionization (MALDI). Profile analyses of the ion signals strongly suggest that the signals are made up of a composite of two separate components and analysis of the flight times of the two components suggests that the ions are formed with different dynamics. The formation dynamics of one component of the ions is best described as prompt ionization to yield ions with essentially mass-independent total energies. The formation dynamics of the second component of the ions is best described as delayed gas-phase ionization of entrained material moving at a constant velocity. This model is supported by several ancillary experiments and suggests new insights into the mechanism of MALDI ion formation. © 1997 by John Wiley & Sons, Ltd.
Allergic reaction to intranasal midazolam HCl: a case report. (2004)

An acute allergic reaction in a 5-year-old healthy male, after receiving midazolam by intranasal atomizer for sedation purposes in the dental clinic, was reported. Shortly after the midazolam was provided, the child developed urticaria in both ankles, which rapidly progressed to the lower extremities, stomach, back, arms, neck, and face. The periorbital skin also became edematous. In the emergency room, the diagnosis of an urticaria allergic reaction was confirmed. The child was treated with intramuscular diphenylhydramine, discharged from the emergency room after 5 hours, and prescribed oral diphenylhydramine (Benadryl) and prednisolone (Orapred). Children who receive sedatives such as midazolam in the dental clinic should be carefully monitored from the moment they receive the sedative, in order to disclose and treat undesirable side effects of the sedative agents as early as possible. The implications of allergic reactions to sedative agents in the dental clinic are reviewed.
Mechanical Properties of Fibre Laser Welded AZ31B Sheets and their Dependence on the Spot-Size (2015)

In the present work the mechanical behaviour of laser beam welded AZ31B alloy was studied, by changing systematically the spot size of the used fibre laser system between 200 µm and 1000 µm at different power levels between 2 kW and 8 kW. Maximum welding velocities with respect to imperfections were determined. The characterization of the obtained welds - in terms of Vickers hardness, UTS, A f and weld width, resp. weld area - was correlated with the micro-texture in dependence of the different Focus Spot Diameters and Laser Beam Power levels as well as the resulting cooling rates. Highest UTS of 94% of the base material was achieved with 200 µm Focus Spot Diameter and Laser Beam Power of 4 kW at welding velocity of 100 mm/s. By increasing the Focus Spot Diameter to 600 µm, the tensile strength was reduced to 86 % of the actual strength of the base material.
The Immunobiology of Eosinophils (1991)

EOSINOPHILS, like neutrophils and basophils, are a type of granulocyte derived from bone marrow, distinguished by their morphologic features, constituents, products, and associations with specific diseases. The original denominating property of eosinophils was the cardinal affinity of their cytoplasmic granules for acid aniline dyes, such as eosin. Eosinophils contain several eosinophil-specific proteins in their cytoplasmic granules, yet to date no cell-surface proteins unique to eosinophils have been recognized. Thus, tinctorial properties remain the routine basis for identifying and enumerating these leukocytes in blood and tissues. Eosinophilia, characterized by both heightened production of eosinophils in bone marrow and the accumulation of . . .
Maximum likelihood motion estimation in ultrasound image sequences (1997)

Maximum likelihood (ML) techniques are defined for optimum block matching to enable motion estimation sequences of ultrasound B-mode images. Such motion estimation is needed as a diagnostic tool in medical use of ultrasound imagery. It is also needed for the efficient compression of sequences of ultrasound images. The novel ML block matching techniques correspond to accurate statistical descriptions of ultrasound images, and are evaluated experimentally using sequences of transesophageal ultrasound images of the heart.