gebhart/patrepeval huggingface dataset:
Development of mobile RoboVision with stereo camera for automatic crop growth monitoring in plant factory (2019)

Plant Factory is a large-scale vegetable production method with limited, closed, and controlled space. This system is endeavored to support the sustainability of agricultural production system by applying the concept of precision agriculture. This concept is implemented to observe plant growth effectively and efficiently. Currently, in the conventional way monitoring carried out one by one, using the computer vision technology will help accelerate plant growth monitoring in the Plant Factory. However, in the application in a Plant Factory, it requires many cameras to be used for growth monitoring for each crop to support the precise measurement. So, it is necessary to have a system that supports the mobility of the camera module inside the plant factory. The objective of this study was to design the Mobile RoboVision using the stereo camera for automatic Crop Growth Monitoring. The system consists of three modules: stereo camera positioning system using M1 Computer Numerical Control (1000mm x 1000mm of size) equipped with x and y motor for flexible movement; Image acquisition system using Raspberry Pi B+ as microcomputer unit installed Stereo Camera standard with quad IR Illuminator and sensors; Data collection system using Cloud Storage. The camera positioning system manages the position of the camera module to stop in every crop in specified coordinate C1…n = {(x1, y1), (x2, y2), …(xn, yn)} and capture stereo images automatically. The captured image will be managed in a data collection system using Cloud System to provide flexible and convenient access for further analysis.
Rate-distortion optimized bit allocation for wireless video coding (2004)

For two-way video communications over wireless channel using the automatic repeat request (ARQ) retransmission scheme, TMN8 rate control scheme is not effective to minimize the number of frames skipped and guarantee video quality during the retransmissions of error packets. This paper presents a joint source channel rate-distortion optimized bit allocation scheme that allocates target bits according to encoder buffer fullness and estimation of channel condition by retransmission information. The results obtained from implementation our scheme in H.263+ coder over wireless channel model show that our proposed scheme encodes the video sequences with lower and steadier buffer delay, fewer frames skipped and higher average PSNR compared to TMN8.
Laser optics accurately measure running shaft alignment (1990)

A new or unusual skin lesion may be the first sign of an internal malignancy, a primary skin cancer or a cutaneous metastasis of carcinoma in another site. Patients with carcinoma that has metastasized to the skin commonly present with lesions in the area overlying the neoplasm, but the morphology, pattern and distribution of cutaneous metastases may vary. Patients with sarcoma, leukemia or lymphoma may also initially present with cutaneous lesions, or lesions may develop later in the course of the disease. Biopsies of suspicious lesions should always be performed.
Cadmium Sulfide Field Effect Phototransistor (1960)

The experimental evaluation of cadmium sulfide field effect transistors indicates that, although the material does not compete with germanium for general transistor application, useful power gain was achieved and certain advantages exist for CdS in phototransistor applications. Many unique circuit functions can be performed by the device. The active electronic properties vary greatly with the intensity and wavelength of incident light, and with photoconductivity quenching infrared radiation. Voltage gains greater than 500, mutual transconductances up to 20 μmho and input resistances near 100 megohms have been observed. Electron-hole pairs are generated photoelectrically in the highly pure, single crystal CdS. The holes are virtually immobile and form a space charge when an applied electric field removes the mobile electrons from a region. Modulation of the space charge boundary by application of a potential to one terminal of the device produces modulation of the conductance between two other terminals and signal amplification results. Attempts to correlate the illumination sensitivity of the terminal characteristics with theoretical field effect parameters indicates the carrier distribution in the crystal is complex and varies with illumination wavelength and quenching intensity.
Amplification and reshaping of optical solitons in glass fiber—III amplifiers with random gain (1983)

The optical solitons in a glass fiber with dissipation can be reshaped by periodic amplifications and thereby can be stably transmitted for a sufficiently large distance. We show that the solitons retain this basic property even when the amplifiers have gains with random variation.
Alice: a 3-D tool for introductory programming concepts (2000)

In learning to program, many students struggle with developing algorithms, figuring out how to apply problem solving techniques in their programs, and with how to use common programming constructs. In this paper, we present a new tool that provides a possible approach to actively engage students in increasing their knowledge and skills in these areas. The tool is Alice, a 3-D interactive animation environment.
Mucosal Immune System of the Human Genital Tract (1999)

In contrast to the pronounced dominance of secretory IgA over other immunoglobulin isotypes in human saliva, tears, milk, and gastrointestinal fluids, secretions of both female and male genital tracts contain more IgG than secretory IgA. Both IgG and IgA are derived, to a variable degree, from the systemic immunoglobulin pool as well as from local synthesis. The origin of IgG- and IgA-plasma cell precursors destined for the genital tract is unknown, but indirect evidence suggests that mucosal inductive sites localized in the rectum, small intestine, and especially in the nasal cavity contribute such precursors to the female genital tract. Several studies indicated that intranasal immunization of various species, including humans, was efficient at inducing antigen-specific antibody responses in the female genital tract; however, whether this route is also effective in males has not been explored.
Clinical Significance of the Colonoscopic Allergen Provocation Test (1997)

The data suggest that the COLAP test may be a useful diagnostic means in patients with suspected intestinal food allergy and a new tool for the study of underlying mechanisms.
Integration of accelerometer data: Filter analysis and design using Riccati solutions (1987)

The adjustment and integration of noisy accelerometer data is formulated as a discrete-time optimal control problem which requires the minimization of a quadratic performance measure subject to linear dynamics. The algebraic Riccati equation associated with this problem is solved by expressing the entries of the Riccati matrix explicitly in terms of the weights in the quadratic performance criterion. Steady-state feedback gains are thus easily computed as functions of the weights. The frequency domain analysis of the adjustment procedure provides the basis for selecting appropriate weights.
The role of an invariant tryptophan residue in α‐bungarotoxin and cobrotoxin (1990)

Ozone oxidation converted the single, invariant, tryptophan residue to N2-formylkynurenine in alpha-bungarotoxin and cobrotoxin. Upon this modification, the lethal toxicity was significantly reduced in cobrotoxin but mostly retained in alpha-bungarotoxin. Each neurotoxin containing kynurenine instead of tryptophan retained the same antigenicity as the native toxin. Fluorescence and CD spectroscopy revealed that, although the environment and state of the kynurenine residue were similar, [Kyn29]cobrotoxin was much more sensitive to pH change than alpha-[Kyn28]bungarotoxin. In terms of lethal toxicity and conformational stability, the invariant tryptophan residue appears to play a more important role in cobrotoxin, imparting a higher lethal toxicity than that in alpha-bungarotoxin, which has a disulfide bond at Cys29-Cys33.
Dynamics of glass-forming liquids. VII. Dielectric relaxation of supercooled <i>tris</i>-naphthylbenzene, squalane, and decahydroisoquinoline (2003)

We have measured the dielectric relaxation of several molecular organic supercooled liquids, ααβ-tris-naphthylbenzene (C36H24 and C36H10D14), squalane, and decahydroisoquinoline. The dynamics is studied in the frequency range 10−2–107 Hz, equivalent to temperatures between Tg and approximately 1.2×Tg. For the very low dielectric loss materials, a resolution of tan δ≈3×10−5 is required in order to observe the details of the relaxation behavior. Characteristic quantities like fragility, relaxation time dispersion, time–temperature superposition, and the slow Johari–Goldstein type β relaxation are among the properties discussed.
Bioética: ¿crisis de la bioética o bioética de la crisis? (2016)

<p>El proceso editorial de la Revista Latinoamericana de Bioética ha sido un trabajo dinámico, caracterizado por el flujo de artículos que versan sobre la vida y sus avatares matizados con lo bio<a title="" href="file:///C:/Users/Juanma/Downloads/CRISIS%20DE%20LA%20BIO%C3%89TICA%20O%20BIO%C3%89TICA%20DE%20LA%20CRISIS.docx#_ftn1">[1]</a>-médico, bio-jurídico, bio-filosófico, entre otros temas que han preocupado a bioeticistas, académicos e intelectuales interesados en divulgar lo importante que es resignificar el sentido de la vida, pero matizado el discurso desde dos polos: uno moralista, eticista especulativo y dogmático que se olvida de la realidad; otro, escéptico, relativista (que también cae en un dogmatismo disciplinar, epistemológico y “ético”), pragmático e inmediatista. Dos polos que en las discusiones bioéticas no han permitido a este campo inter y transdisciplinar hacer ver su verdadero valor y sentido dentro de los campos antropológicos, sociológicos, ecológicos, medio-ambientales, políticos y económicos gestores e impulsores de procesos dinámicos en la constitución de la humanidad, la subjetividad e intersubjetividad contemporánea.</p>En este contexto característico del discurso bioético, cabe preguntarse ¿crisis de la bioética o bioética de la crisis?<div><br clear="all" /><hr align="left" size="1" width="33%" /><div><p><a title="" href="file:///C:/Users/Juanma/Downloads/CRISIS%20DE%20LA%20BIO%C3%89TICA%20O%20BIO%C3%89TICA%20DE%20LA%20CRISIS.docx#_ftnref1">[1]</a> El prefijo “bio” se comprende como la tarea de juez ético-moralista que realiza la bioética, dejando de lado su origen etimológico “vida”. </p></div></div>
International University Week 2015 (2015)

Supported education.
Presentatie in het kader van de University week in Jena, 21 april 2015.
CoLLIDE: CLoud Latency-based IDEntification (2017)

As services steadily migrate to the Cloud, the availability of an overarching identity framework has become a stringent need. Moreover, such an identity framework is now critical in the Internet of Things. To address this problem, identification solutions have been proposed in the past leveraging software or hardware properties of devices. While those solutions proved feasible, their root of trust was based either within the device or in a remote server. In this paper, we overcome the above paradigm and star investigating novel perspectives offered by an overarching identity framework that is not based on client/server properties, but on the network latency of their communications. The core idea behind our approach is to leverage cloud client/server interactions’ latency patterns over the network to derive unique and unpredictable identity factors. Such factors can be used to design and implement effective identification schemes especially suitable for cloud-based services. To the best of our knowledge, our approach is the first one ensuring unclonability and unpredictability properties, relying on neither trusted computing bases (TCBs) nor on classical pseudo-random number generators (PRNGs). The experimental tests presented in this paper, conducted on worst case conditions, show that the network latency (generated between two interacting devices) can produce random values with properties close to the ones generated by most of the well-known PRNGs, that are an ideal fit for providing unique identifiers.
The aerodynamic effects of wing rotation and a revised quasi-steady model of flapping flight (2002)

We used a dynamically scaled model insect to measure the rotational forces produced by a flapping insect wing. A steadily translating wing was rotated at a range of constant angular velocities, and the resulting aerodynamic forces were measured using a sensor attached to the base of the wing. These instantaneous forces were compared with quasi-steady estimates based on translational force coefficients. Because translational and rotational velocities were constant, the wing inertia was negligible, and any difference between measured forces and estimates based on translational force coefficients could be attributed to the aerodynamic effects of wing rotation. By factoring out the geometry and kinematics of the wings from the rotational forces, we determined rotational force coefficients for a range of angular velocities and different axes of rotation. The measured coefficients were compared with a mathematical model developed for two-dimensional motions in inviscid fluids, which we adapted to the three-dimensional case using blade element theory. As predicted by theory, the rotational coefficient varied linearly with the position of the rotational axis for all angular velocities measured. The coefficient also, however, varied with angular velocity, in contrast to theoretical predictions. Using the measured rotational coefficients, we modified a standard quasi-steady model of insect flight to include rotational forces, translational forces and the added mass inertia. The revised model predicts the time course of force generation for several different patterns of flapping kinematics more accurately than a model based solely on translational force coefficients. By subtracting the improved quasi-steady estimates from the measured forces, we isolated the aerodynamic forces due to wake capture.
The role of eicosanoids in the brain. (2008)

The brain contains two main polyunsaturated fatty acids (PUFA), arachidonic acid (AA) and docosahexaenoic acid (DHA). These PUFA are located almost exclusively in the sn2-position of phosphoglycerides which are found in the neural cell membranes. Liberation of these PUFA from the phosphoglycerides occurs via the action of specific phospholipases (PLA2). Free AA can be metabolised by cyclooxygenases to prostaglandins and thromboxane, while both AA and DHA can be metabolised by lipoxygenases to form hydroxy derivatives and leukotrienes. AA is also metabolised to lipoxins via the 5-lipoxygenase pathway. The eicosanoids formed play important roles in neural function including sleep induction (PGD2), long term potentiation, spatial learning and synaptic plasticity (PGE2), resolution of inflammation (lipoxins) and anti-inflammatory and neuroprotective bioactivity (dihydroxy-docosatriene, neuroprotectin D1, formed from DHA). COX-inhibitors have been shown to reduce oxidative stress and cognitive impairment. Additionally, drugs which are used to treat depression have been shown to reduce the turnover of AA to PGE2 in the brain. Diets deficient in omega 3 PUFA lead to reduced DHA in the brain and increased turnover of AA to eicosanoids, an effect which is overcome by restoring the omega 3 PUFA to the diet. In neural trauma and neurodegenerative diseases, there is a dramatic rise in the levels of AA-derived eicosanoids. In contrast, DHA-derived compounds can prevent neuroinflammation. Clearly, the eicosanoids are very important for the normal functioning of the brain, while the PUFA themselves are important in membrane structure and function.
Alpha‐fetoprotein‐mediated uptake of fatty acids by human T lymphocytes (1992)

The binding to resting and activated T lymphocytes of two radiolabelled fatty acids (oleic and arachidonic) was studied in the presence or in the absence of alpha-fetoprotein (AFP) as carrier protein. Fatty acid binding by resting and activated T lymphocytes was determined at 4 degrees C as a function of the concentration of fatty acid and AFP. Under the conditions employed, the following observations were made: (1) in the presence of AFP, fatty acids (oleic and arachidonic acid) are bound to cells by a two-component pathway; one is a saturable process, evidenced when the fatty acid to AFP (FA/AFP) molar ratio was fixed at 1 and the concentration of the fatty acid and the protein varied from 0.1 to 3.2 microM, and the second is a nonsaturable function of FA/AFP molar ratio and was linearly related to the unbound fatty acid concentration in the medium over the entire range studied; (2) in the absence of AFP, the nonsaturable process appears to be the only component of fatty acid binding; 3) at all tested concentrations of free (unbound) fatty acid in the medium, net fatty acid binding by either resting or activated T cells was considerably greater in the presence than in the absence of AFP; (4) in the presence of AFP, fatty acid binding was much higher in activated T cells than in resting T cells, whereas in the absence of AFP, nonsignificant differences were observed between activated and resting T cells; and (5) the time course of fatty acid and AFP binding at 4 degrees C revealed that, at equilibrium, the number of fatty acid molecules bound to the cell was much greater than that of AFP suggesting an accelerated dissociation of the fatty acid upon interaction of the AFP-fatty acid complex with putative cell receptors. It is concluded to the existence of an AFP/AFP-receptor pathway that facilitates the binding of fatty acids to T lymphocytes, particularly upon their blast transformation. This pathway may fulfill the increased requirement for fatty acids characteristic of proliferating cells and may serve to regulate the endocytosis of fatty acids with modulatory effects on lymphocyte function and to protect cells from their cytotoxic potential when internalized in excess.
Correlation between cell‐adherent activity and surface structure in <i>Porphyromonas gingivalis</i> (1992)

The cell-adherent ability of 6 strains of Porphyromonas gingivalis (381, ATCC 33277, SU63, KD1, W50 and W83) was compared by using radiolabeled bacterial cells and human gingival fibroblasts (Gin 1), human periodontal ligament fibroblasts (HPLF) and human epithelial cells (Ca9-22) that had been grown on collagen beads. The cell-adherent activity of these organisms varied among strains; P. gingivalis strains 381, ATCC 33277 and SU63 bound to the target cells at a range of 14% to 72%, but the other 3 strains (KD1, W50 and W83) were scarcely bound (0.6% to 3.5%). On the other hand, whole bacterial cells and culture supernatants of all strains showed distinct hemagglutinating activity. The 3 strains showing high cell-adherent activity were hydrophobic and the other strains showing less activity were relatively hydrophilic. Furthermore, a number of peritrichous fimbriae were found on the surface of P. gingivalis strains 381, ATCC 33277 and SU63, which showed high adherent activity, whereas, fimbriae on the other 3 strains showing low adherent ability were barely apparent. Therefore, it was assumed that the cell-adherent activity of P. gingivalis was related to the hydrophobicity of the cell surface, which was related to the number of fimbriae.
ILP-based Scheduling for Asynchronous Circuits in Bundled-Data Implementation (2006)

In this paper, we propose a new scheduling method for asynchronous circuits in bundled-data implementation. The method is based on integer linear programming (ILP) which explores an optimum schedule under resource or time constraints. To schedule descriptions with many operations, our method approximate start times of operations and formulate an ILP based on the approximated start times. Because less numbers of variables and constraints are required compared to the traditional ILP formulation, the schedule of operations is determined in short time preserving the quality of resulting circuit.
Integrating recommender information in social ecosystems decisions (2010)

The exploration of online social ecosystems whose members share mutual recommendations and interactions is a time-dependent and contextual-based process which aims to predict the social status among them. To address the difficulties associated with the process, this article presents the integration of the predictive recommender, social networks, and interaction components into a single methodology. The originality of the proposed framework stems from developing each model based on: (1) a time history and decay algorithm to consider temporal recommendations and interactions; (2) a predictive-aggregating function for different types of social contexts; and, (3) a homophily algorithm to evaluate people's interconnections proximity. Details of the framework are described, a recommender search strategy methodology integrating all of the above is devised, and a case study is used to demonstrate its capabilities. Possible extensions are then outlined.
Present technologies for hydrogen sulfide removal from gaseous mixtures (2013)

Natural gas, refinery gas, and coal gas contain acid gases such as hydrogen sulfide (H2S) and carbon dioxide that must be removed from the gas stream due to the toxicity of H2S and to prevent corrosion to piping and production facility caused by the acid gases. In this article, current technologies for the acid gas removal are selected and reviewed. The review includes absorption, adsorption, conversion of H2S into elemental sulfur, and membrane reactor for H2S decomposition and desulfurization. Recently, hollow fiber membrane contactor has been in the limelight of research in H2S absorption from gaseous mixture due to its potential to overcome problems such as foaming and loading. Recent trends on Claus tail gas cleanup technologies are highlighted due to the recent progress in membrane technology. The article also suggests current research on the acid gas removal technology using catalytic membrane reactor. The interest on finding suitable active component and support and studying the membrane structure for enhanced removal of acid gases is likely to be rekindled in the near future.
Helicobacter pylori Eradication: A Randomized Prospective Study of Triple Therapy Versus Triple Therapy Plus Lactoferrin and Probiotics (2007)

The results of our study suggest that the addition of bLf and Pbs could improve the standard eradication therapy for H. pylori infection--bLf serving to increase the eradication rate and Pbs to reduce the side effects of antibiotic therapy.
Shear Wave Elastographic Characterization of Normal and Torn Achilles Tendons (2013)

Our results suggest that shear wave elastography is a valuable tool that can provide complementary biomechanical information for evaluating the function of the Achilles tendon.
Effect of dispersant on the rheological properties of gelcast fused silica ceramics (2016)

Fused silica ceramics with high flexural strength, low porosity, low dielectric constant and loss tangent were fabricated by gelcasting, a near-net shape fabrication technique. Fused silica suspensions with solid loading as high as 73 vol.% with low viscosity has been prepared using various dispersants in acidic and alkaline regions/medium. Commercially available Darvan 821A, Darvan C-N, Dolapix A88 and Dolapix CE64 were used as dispersants. Investigations were carried out to determine the suitable dispersant and effects of dispersant percentage, pH value, zeta potential, and solid loading on the rheological properties of the suspension. Darvan 821A showed better results in the suspension of fused silica particles in aqueous gelcast system. At 1250°C the flexural strength of fused silica bodies is as high as 52.3 MPa, and the dielectric constant and loss tangent (1 MHz) were as low as 3.25 and 1 X L52M0-3 for solid loading of 70 vol.% respectively. Such properties are highly desirable for ceramic radomes used in lower range missiles.