gebhart/patrepeval huggingface dataset:
Light intensity as mechanical potential: a symmetry-based approach (2019)

Light-induced motion is of increasing importance in materials development. In many situations, modelling the detailed dynamics of light-induced phenomena is not practical, yet a description of the behaviour is needed. We attempt to show here that in some such situations, symmetry arguments can prove useful. We outline a simple scheme where symmetry arguments can be useful in modelling the dynamics, and show, in three examples, that in some instances, light intensity may be regarded as a mechanical potential. Such an approach may help in understanding photoactuations in situations where more detailed analyses are impractical.
DESIGN, FABRICATION AND BENCH TESTING OF A TEXACO INFRARED RATIO PYROMETER SYSTEM FOR THE MEASUREMENT OF GASIFIER REACTION CHAMBER TEMPERATURE (2004)

ChevronTexaco has shipped the pyrometer system to Tampa, Florida. Polk Power is in the process of installing the mechanical, electrical and instrumentation of the pyrometer system as well as integrating the instrumentation to the test site Distributed Control System. The startup and field testing of the system will begin afterwards.
CUTTING EDGE TECHNOLOGIES IN POSTHARVEST RESEARCH: JOURNEY TO THE CENTRE OF THE FRUIT (2012)

Food microstructure is at the base of many food quality properties. The EU project InsideFood focuses on the application of high technological techniques to inspect internal quality of fruit. Tomographic techniques such as magnetic resonance imaging, X-ray computed tomography, optical coherence tomography and confocal microscopy can be used to obtain information about the 3-D microstructure of the fruit which is believed to affect quality attributes such as texture. Optical techniques such as spatially or time resolved reflectance spectroscopy may also be used to obtain information about fruit microstructure. This microstructural information can be incorporated in multiscale simulation models to predict the cellular gas concentrations in fruit. Such models aid towards a better understanding of, for instance, controlled atmosphere storage of apple and postharvest behaviour of fruits and vegetables in general.
Polyphenol rich fruit attenuates genomic instability, modulates inflammation and cell cycle progression of offspring from fatty acid intake maternal (2019)

The aim of this study was to investigate the effect of juçara (Euterpe edulis Mart.) supplementation on the maternal trans fatty acids intake in the livers of 21-day-old offspring. In order for this to happen, histopathological analysis, cytogenetic status, inflammation (COX-2 and TNF-alpha) and cell cycle progression were investigated in this setting. On the first day of pregnancy, female rats were distributed into four groups, as follows: control diet (C), control diet with 0.5 % juçara supplementation (CJ), diet enriched with hydrogenated vegetable fat, rich in TFAs (T), or T diet supplemented with 0.5 % juçara (TJ) during pregnancy and lactation. Juçara pulp induced liver regeneration in newborns exposed to maternal trans fatty acids. A significant decrease in the number of micronucleated hepatocytes was observed in animals exposed to trans fatty acids and treated with juçara. COX-2 and TNF immunoexpression was reduced in animals treated with juçara pulp. Furthermore, a decrease of Ki-67 immunoexpression was detected after treating trans fatty acids intake with juçara. Taken together, our results demonstrate that juçara pulp is able to prevent tissue degeneration and mutagenicity because it decreases inflammation and cell cycle control induced by maternal trans fatty acids in liver cells of rat offspring.
Rank-Adaptive Tensor Methods for High-Dimensional Nonlinear PDEs (2021)

Abstract We present a new rank-adaptive tensor method to compute the numerical solution of high-dimensional nonlinear PDEs. The method combines functional tensor train (FTT) series expansions, operator splitting time integration, and a new rank-adaptive algorithm based on a thresholding criterion that limits the component of the PDE velocity vector normal to the FTT tensor manifold. This yields a scheme that can add or remove tensor modes adaptively from the PDE solution as time integration proceeds. The new method is designed to improve computational efficiency, accuracy and robustness in numerical integration of high-dimensional problems. In particular, it overcomes well-known computational challenges associated with dynamic tensor integration, including low-rank modeling errors and the need to invert covariance matrices of tensor cores at each time step. Numerical applications are presented and discussed for linear and nonlinear advection problems in two dimensions, and for a four-dimensional Fokker–Planck equation.
Conducted EMI Suppression and Stability Issues in Switch-mode DC-DC Converters (2006)

Electronic power converters are sources of electromagnetic interference at their input power source as well as in other neighbouring electronic equipment, and suppression of EMI is a major issue in switch-mode power converter design. By their very nature, switching converters have fast voltage and current changes that generate conducted noise due to reflected ripples in the input current. Fast switching logic loads also produce conducted noise that reflects back onto the input of the converter. In order to meet conducted emission and susceptibility standards, an LC input filter is often employed between a dc-dc converter and its power source. However, its presence, in turn, often results in degradation of dynamic performance and instability of the system even if the filter attenuation is brilliantly designed. The detrimental interaction between an input filter and a switched mode converter is a function of input filter parameters as well as supply voltage. In this paper, some design practices for EMI noise suppression are discussed for dc-dc converter applications. Then the instability problem is addressed that results from the complex interaction of dc-dc power converter with its input EMI filter. Its causes are discussed and a design procedure is suggested for its treatment by damping the input filter without over sizing or under sizing. Results corresponding to boost converter are presented to illustrate the procedure.
Verbesina helianthoides Michx. (2002)

https://thekeep.eiu.edu/herbarium_specimens_byname/13801/thumbnail.jpg
Bioorganic Models for Protein Ion Channels (1991)

Biophysical characterization of ion channels peptides. We are using single-channel voltage clamp methods to study the model ion channel peptide, Ac- (LSSLLSL)3-CONH2 in an attempt to determine how selective it is for the conductance of cations versus anions. Both ends of the peptide are masked with neutral blocking, groups, allowing us to eliminate effects that are due to formal charges. Because the peptides can reorient upon a voltage change, we must use voltage pulses or fast ramps (approximately 100 msec) to measure full current-voltage relations on single open channels; the longer lifetime of the acetylated peptide facilitates this measurement. The open channel I-V relation rectifies in symmetrical 1 M KC1, with larger currents at the holding potential than at the opposite potential. (According to our gating model, the larger currents flow from C-terminus to N-terminus)
Comparison of Stage and Lymph Node Ratio in Young and Older Patients with Colorectal Cancer Operated in a Tertiary Hospital in Nepal (2018)

Background: Colorectal cancer is being diagnosed more frequently in the young and it presents in an advanced stage. In TNM staging, stage depends on tumor size and number of positive nodes, which depend on location of tumor as well as the extent of dissection.The lymph node ratio is regarded as a more reliable marker for prognosis. In this study, we compare epidemiology of colorectal cancer in the young (<40 years) and older patients as well as the LNR. Methods: Patients with colorectal cancer operated at the Tribhuvan University Teaching Hospital, Kathmandu, Nepal for a period of 4 years (2012 – 2016) were included in the study. Patients were grouped into young (? 40 years) and older (> 40 years) and clinic-pathological data such as site of lesion, clinical stage, and lymph node ratio were compared. Results: Of the 95 patients of colorectal cancer, 25 patients were of age ? 40 years (26%) and they had a higher median stage at diagnosis. In patients above 40 years, it was diagnosed at a relatively earlier stage. The mean number of positive nodes was 11.64 in younger patients whereas it was 18.34in those more than 40 years of age,but younger patients had higher lymph node ratio than elderly (0.31 vs 0.13) (P-value ? 0.005). Conclusions: Young patients with colorectal cancer tend to have more advanced disease. The lymph node metastasis and lymph node ratio tend to be higher in young patients.
Spatially and angle-multiplexed holographic random access memory (1993)

A 3-D holographic optical memory is described that combines spatially and angularly multiplexed storage to yield a storage capacity of approximately 10<sup>12</sup> bits in a crystal with volume less than 100 cm<sup>3</sup>. A non-mechanical scanning mechanism, consisting of acoustooptic deflectors and a segmented mirror, retrieves any stored hologram in a time equal to the acoustic delay through the aperture of the acoustooptic deflector
Efficient power supply for telemetry sensor nodes (2014)

Unidirectional telemetry systems for long range wireless data transmission are becoming more and more important for localization and sensor applications. A small size of the transmitter nodes, required for mobility, can only be reached by the use of tiny batteries. This paper explains, how an energy storage device like a capacitor can help to handle the current limitation of such batteries, e.g. coin cell batteries. Different circuits for the charge of the capacitor and for the power supply of sensor nodes are discussed. The efficiencies of the supply concepts are calculated and compared. The realizable number of transmissions for the different power concepts and a given type of battery is estimated. As a consequence of our calculations the optimal power concept could be implemented into our 1 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> cubic transmitter demonstrator, which is introduced in this paper.
VeSense: High-performance and energy-efficient vehicular sensing platform (2013)

Although vehicular sensing where mobile users in vehicles continuously gather, process, and share location-sensitive and context-sensitive sensor data (e.g., street images, road condition, traffic flow) is emerging, little effort has been investigated in a model-based energy-efficient network paradigm of sensor information sharing in vehicular environments. Upon these optimization frameworks, a suite of optimization subproblems: a program partitioning and network resource allocation problem, we propose a distributed vehicular sensing platform, called VeSense where mobile users in vehicles publish/access sensor data via a cloud computing-based distributed P2P overlay network. The key objective is to satisfy the vehicular sensing application’s quality of service requirements by modeling each subsystem: mobile clients, wireless network medium, and distributed cloud services. By simulations based on experimental data, we present the proposed system can achieve up to 37 times more energy-efficient and 73 times faster compared to a standalone mobile application, in various vehicular sensing scenarios applying a realistic mobility model.
Determining the maximum diameter for holes in the shoe without compromising shoe integrity when using a multi-segment foot model (2011)

Measuring individual foot joint motions requires a multi-segment foot model, even when the subject is wearing a shoe. Each foot segment must be tracked with at least three skin-mounted markers, but for these markers to be visible to an optical motion capture system holes or 'windows' must be cut into the structure of the shoe. The holes must be sufficiently large avoiding interfering with the markers, but small enough that they do not compromise the shoe's structural integrity. The objective of this study was to determine the maximum size of hole that could be cut into a running shoe upper without significantly compromising its structural integrity or changing the kinematics of the foot within the shoe. Three shoe designs were tested: (1) neutral cushioning, (2) motion control and (3) stability shoes. Holes were cut progressively larger, with four sizes tested in all. Foot joint motions were measured: (1) hindfoot with respect to midfoot in the frontal plane, (2) forefoot twist with respect to midfoot in the frontal plane, (3) the height-to-length ratio of the medial longitudinal arch and (4) the hallux angle with respect to first metatarsal in the sagittal plane. A single subject performed level walking at her preferred pace in each of the three shoes with ten repetitions for each hole size. The largest hole that did not disrupt shoe integrity was an oval of 1.7cm×2.5cm. The smallest shoe deformations were seen with the motion control shoe. The least change in foot joint motion was forefoot twist in both the neutral shoe and stability shoe for any size hole. This study demonstrates that for a hole smaller than this size, optical motion capture with a cluster-based multi-segment foot model is feasible for measure foot in shoe kinematics in vivo.
Inhibition of growth but not differentiation of normal and leukemic myeloid cells by methylthioadenosine. (1987)

Methylthioadenosine (MTA), a coproduct of polyamine biosynthesis, is known to inhibit proliferation in a variety of cell culture systems. In this paper, we show that while MTA inhibits the growth of the human promyelocytic cell line HL-60, it does not interfere with retinoic acid-induced granulocytic or phorbol ester-induced monocytic differentiation of these cells. MTA also inhibits proliferation induced by colony stimulating activity of normal human granulocytic precursor cells grown in suspension culture but does not suppress terminal differentiation of these cells. In contrast to the lack of effect of MTA on granulocytic differentiation which we report here, others have shown that MTA prevents terminal differentiation of murine erythroleukemia cells. That MTA is a normal cellular constituent which inhibits proliferation but not differentiation of normal granulopoietic cells and may have opposing effects on immature cells of erythroid lineage suggests a possible role for this compound in the regulation of hematopoiesis. In addition, MTA may be useful for studying the process of differentiation in the absence of cell proliferation in granulopoietic cells.
Next-generation large-scale binary protein interaction network for Drosophila melanogaster (2023)

Generating reference maps of interactome networks illuminates genetic studies by providing a protein-centric approach to finding new components of existing pathways, complexes, and processes. We apply state-of-the-art methods to identify binary protein-protein interactions (PPIs) for Drosophila melanogaster. Four all-by-all yeast two-hybrid (Y2H) screens of > 10,000 Drosophila proteins result in the 'FlyBi' dataset of 8723 PPIs among 2939 proteins. Testing subsets of data from FlyBi and previous PPI studies using an orthogonal assay allows for normalization of data quality; subsequent integration of FlyBi and previous data results in an expanded binary Drosophila reference interaction network, DroRI, comprising 17,232 interactions among 6511 proteins. We use FlyBi data to generate an autophagy network, then validate in vivo using autophagy-related assays. The deformed wings (dwg) gene encodes a protein that is both a regulator and a target of autophagy. Altogether, these resources provide a foundation for building new hypotheses regarding protein networks and function.
Role of tissue factor in the procoagulant and antibacterial effects of human adipose-derived mesenchymal stem cells during pneumosepsis in mice (2019)

These data indicate that ASC-associated tissue factor is responsible for systemic activation of coagulation after infusion of ASCs but not for the formation of microthrombi in the lungs or antibacterial effects.
&lt;title&gt;Deconvolution Technique For The Improvement Of Contrast Of Image Intensifiers&lt;/title&gt; (1981)

A mathematical filter which improves the contrast response of image intensifiers is derived. The filter is obtained by inverting the point spread function (PSF) of the system. A point spread function which takes into account the spread of light in the image intensi-fier system is proposed using physical arguments. The PSF has two parameters which are the range and the fraction of light which spreads. These two parameters are determined by a least squares fit to the experimentally measured data. The inverse filter is used in the deconvolution of video images. The results indicate that a substantial improvement in the contrast ratio of the system can be achieved by this technique.*
The Investigation of Water Diffusion into Teflon Copolymer Revealed by Fiber-optic Evanescent Wave Spectroscopy (2007)

Fiber-optic evanescent wave infrared spectroscopy was used for the study of water diffusion in Teflon and has provided valuable information about the structure of water in amorphous hydrophobic polymers. Time-dependent absorption measurements were carried out in two spectral ranges: 3000-3800 cm(-1), associated with the O-H stretching mode, and 1620-1670 cm(-1), associated with the H-O-H bending mode of water. The results indicate that the IR spectra could be expressed as a superposition of spectra due to two species of water molecules: strongly and weakly hydrogen-bonded. We suggest that water molecules form clusters with strongly hydrogen-bonded molecules at the cores and with weakly hydrogen-bonded molecules at the external parts of the clusters. A mathematical model, based on a linear diffusion equation with a moving boundary, gave a ratio of 3.5 between the total number of molecules in a cluster and the number of water molecules at the core of the cluster.
Aptamer-Decorated Self-Assembled Aggregation-Induced Emission Organic Dots for Cancer Cell Targeting and Imaging (2017)

A facile and simple one-step method was developed to fabricate aptamer-decorated self-assembled organic dots with aggregation-induced emission (AIE) characteristics. With integration of the advantages of AIE aggregates with strong emission and the cell-targeting capability of aptamers, the as-prepared Apt-AIE organic nanodots can specifically target to cancer cells with good biocompatibility, high image constrast, and photostability. On the basis of this universal method, a variety of versatile organic fluorescent nanoprobes with high brightness, specific recognition, and clinical-transitional potential could be facilely constructed for biological sensing and imaging applications.
A Novel Approach for Laboratory Activities in E-Learning Courses (2007)

Nowadays the challenge for engineering education is about the online education: the role of laboratory is very important in engineering studies. In the past two decades great efforts have been made in this direction and many proposals of virtual and remote labs have been presented. The strong point of a local laboratory is to permit the student to acquire good practical skills, but in the systems proposed in literature there is a lack of interaction with the real equipment. In this paper an approach aimed at conciliating the most important features of local laboratory with the ones of remote laboratory is presented. The attention is focused on the client-unit: the student has to setup a copy of the real circuit located in a laboratory by using real components and low-cost devices emulating the real instrumentations. An automatic procedure tests the correctness of the mounted circuit and, if the check passes, the trainee uses virtual instrumentation techniques to control the real measurement bench, as in a classic remote lab.
Oversensing of transthoracic excitation stimuli in contemporary pacemakers (2018)

Oversensing with pacing inhibition is apparent with the potential of adverse effects to patients.
Parallel current-steering D/A Converters for Flexibility and Smartness (2007)

This paper presents a DAC architecture built on parallel current-steering sub-DAC entities. Two main novelties are explored: flexibility and smartness. Firstly, a number of available operating modes (op-modes) can set the overall DAC performance and functionality. These op-modes transfer some of the important design trade-offs to the end-user and constitute the DAC flexibility. The main examples include: resolution-power-number of DACs, static-dynamic performance, etc. Secondly, specific signal processing techniques become possible. The main examples of such techniques include: full self-calibration, cancellation of harmonic distortion (HD) components, and linearity improvement through redundancy. This paper concentrates on a method to suppress undesired HD components through DA processing of phase shifted replicas of the main input signal. The presented theoretical concepts are realized in a 14-bit DAC built from 4 parallel 12-bit sub-DACs. Transistor simulations and a layout design are also presented. The demonstrated flexibility characteristics of the new DAC architecture make the discussed concepts particularly suitable for FPGA integration.
Differential activation of c-Fos and Egr1 during development of the mouse visual cortex (2021)

<ns3:p> <ns3:bold>Background:</ns3:bold> Critical periods (CP) in brain development are characterized by heightened neural plasticity in the relevant brain regions. They are associated with changes in gene expression cascades, in particular with altered expression of genes involved in plasticity regulation, such as immediate early genes. Here we examine the expression of the immediate early genes <ns3:italic>c-Fos</ns3:italic> and <ns3:italic>Egr1</ns3:italic> at different stages of mouse visual cortex (VC) development. </ns3:p> <ns3:p> <ns3:bold>Methods:</ns3:bold> Mice 11, 25, and 50 days of age were maintained under standard light-dark conditions, deprived of light for 5 days, or deprived of light for 5 days and then exposed to light for 90 min. Their brains were analyzed at PND16 (before the onset of the CP), PND30 (during the CP) and PND55 (after the CP) to determine the changes in the number of cells expressing <ns3:italic>c-Fos</ns3:italic> and <ns3:italic>Egr1</ns3:italic> in the binocular primary visual and primary somatosensory cortices. </ns3:p> <ns3:p> <ns3:bold>Results:</ns3:bold> We found highly specific induction of <ns3:italic>c-Fos</ns3:italic> expression in the primary VC in response to light. We also observed transient cross-modal activation of <ns3:italic>c-Fos</ns3:italic> in the barrel field of the primary somatosensory cortex in response to light before and during the CP; such activation disappeared after the CP. Expression of <ns3:italic>Egr1</ns3:italic> was not induced by light in the VC before the CP, but was evident during and after the CP, although the induction was much less pronounced than that of <ns3:italic>c-Fos</ns3:italic> . </ns3:p> <ns3:p> <ns3:bold>Conclusions:</ns3:bold> Dynamic changes in <ns3:italic>c-Fos</ns3:italic> and <ns3:italic>Egr1</ns3:italic> expression may reflect their contribution to the VC plasticity during the CPs of postnatal brain development. </ns3:p>