Academic literature on the topic 'Time-lapse biological experiment'

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Journal articles on the topic "Time-lapse biological experiment"

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Štys, Dalibor, Jan Urban, Jan Vaněk, and Petr Císař. "Analysis of biological time-lapse microscopic experiment from the point of view of the information theory." Micron 42, no. 4 (2011): 360–65. http://dx.doi.org/10.1016/j.micron.2010.01.012.

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Štys, Dalibor, Jan Urban, Jan Vaněk, and Petr Císař. "Analysis of biological time-lapse microscopic experiment from the point of view of the information theory [Micron Vol. 41 Issue 5]." Micron 41, no. 5 (2010): 478. http://dx.doi.org/10.1016/s0968-4328(10)00110-1.

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Nebbioso, Giammarco, Robel Yosief, Vasilij Koshkin, et al. "Automated identification and tracking of cells in Cytometry of Reaction Rate Constant (CRRC)." PLOS ONE 18, no. 7 (2023): e0282990. http://dx.doi.org/10.1371/journal.pone.0282990.

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Cytometry of Reaction Rate Constant (CRRC) is a method for studying cell-population heterogeneity using time-lapse fluorescence microscopy, which allows one to follow reaction kinetics in individual cells. The current and only CRRC workflow utilizes a single fluorescence image to manually identify cell contours which are then used to determine fluorescence intensity of individual cells in the entire time-stack of images. This workflow is only reliable if cells maintain their positions during the time-lapse measurements. If the cells move, the original cell contours become unsuitable for evalua
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Yoshioka, Akira, Akira Shimizu, Hiroyuki Oguma, et al. "Development of a camera trap for perching dragonflies: a new tool for freshwater environmental assessment." PeerJ 8 (September 18, 2020): e9681. http://dx.doi.org/10.7717/peerj.9681.

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Although dragonflies are excellent environmental indicators for monitoring terrestrial water ecosystems, automatic monitoring techniques using digital tools are limited. We designed a novel camera trapping system with an original dragonfly detector based on the hypothesis that perching dragonflies can be automatically detected using inexpensive and energy-saving photosensors built in a perch-like structure. A trial version of the camera trap was developed and evaluated in a case study targeting red dragonflies (Sympetrum spp.) in Japan. During an approximately 2-month period, the detector succ
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Zhu, Xueqing, Cristina Alonso, Makram T. Suidan, Hongwen Cao, Byung J. Kim, and Byung R. Kim. "The effect of liquid phase on VOC removal in trickle-bed biofilters." Water Science and Technology 38, no. 3 (1998): 315–22. http://dx.doi.org/10.2166/wst.1998.0226.

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The objective of this work was to analyze the effect of water content on the removal of volatile organic compounds (VOCs) in gas phase trickle-bed biofilters. Previous studies revealed that excessive accumulation of biomass in the reactor had a negative effect on contaminant removal efficiency. To solve this problem, periodic backwash was used to remove excess biomass and maintain an effective operation. Results showed that the ether removal efficiency dropped immediately after backwashing and gradually improved to reach the optimal value within about 24 hours. The initial drop in performance
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Nolan, Peter, James Pinto, Javier González-Rocha, et al. "Coordinated Unmanned Aircraft System (UAS) and Ground-Based Weather Measurements to Predict Lagrangian Coherent Structures (LCSs)." Sensors 18, no. 12 (2018): 4448. http://dx.doi.org/10.3390/s18124448.

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Concentrations of airborne chemical and biological agents from a hazardous release are not spread uniformly. Instead, there are regions of higher concentration, in part due to local atmospheric flow conditions which can attract agents. We equipped a ground station and two rotary-wing unmanned aircraft systems (UASs) with ultrasonic anemometers. Flights reported here were conducted 10 to 15 m above ground level (AGL) at the Leach Airfield in the San Luis Valley, Colorado as part of the Lower Atmospheric Process Studies at Elevation—a Remotely-Piloted Aircraft Team Experiment (LAPSE-RATE) campai
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Hadjidemetriou, Stathis, Rania Hadjisavva, Andri Christodoulou, Ismini Papageorgiou, Ioanna Panayiotou, and Paris Skourides. "Spatiotemporal Identification of Cell Divisions Using Symmetry Properties in Time-Lapse Phase Contrast Microscopy." Symmetry 14, no. 9 (2022): 1802. http://dx.doi.org/10.3390/sym14091802.

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A variety of biological and pharmaceutical studies, such as for anti-cancer drugs, require the quantification of cell responses over long periods of time. This is performed with time-lapse video microscopy that gives a long sequence of frames. For this purpose, phase contrast imaging is commonly used since it is minimally invasive. The cell responses of interest in this study are the mitotic cell divisions. Their manual measurements are tedious, subjective, and restrictive. This study introduces an automated method for these measurements. The method starts with preprocessing for restoration an
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Ghafari, Mehran, Justin Clark, Hao-Bo Guo, et al. "Complementary performances of convolutional and capsule neural networks on classifying microfluidic images of dividing yeast cells." PLOS ONE 16, no. 3 (2021): e0246988. http://dx.doi.org/10.1371/journal.pone.0246988.

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Microfluidic-based assays have become effective high-throughput approaches to examining replicative aging of budding yeast cells. Deep learning may offer an efficient way to analyze a large number of images collected from microfluidic experiments. Here, we compare three deep learning architectures to classify microfluidic time-lapse images of dividing yeast cells into categories that represent different stages in the yeast replicative aging process. We found that convolutional neural networks outperformed capsule networks in terms of accuracy, precision, and recall. The capsule networks had th
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Yoo, Woo Sik, Jung Gon Kim, Kitaek Kang, and Yeongsik Yoo. "Development of Static and Dynamic Colorimetric Analysis Techniques Using Image Sensors and Novel Image Processing Software for Chemical, Biological and Medical Applications." Technologies 11, no. 1 (2023): 23. http://dx.doi.org/10.3390/technologies11010023.

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Colorimetric sensing techniques for point(s), linear and areal array(s) were developed using image sensors and novel image processing software for chemical, biological and medical applications. Monitoring and recording of colorimetric information on one or more specimens can be carried out by specially designed image processing software. The colorimetric information on real-time monitoring and recorded images or video clips can be analyzed for point(s), line(s) and area(s) of interest for manual and automatic data collection. Ex situ and in situ colorimetric data can be used as signals for pro
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Laketa, Vibor, Jeremy C. Simpson, Stephanie Bechtel, Stefan Wiemann, and Rainer Pepperkok. "High-Content Microscopy Identifies New Neurite Outgrowth Regulators." Molecular Biology of the Cell 18, no. 1 (2007): 242–52. http://dx.doi.org/10.1091/mbc.e06-08-0666.

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Neurons, with their long axons and elaborate dendritic arbour, establish the complex circuitry that is essential for the proper functioning of the nervous system. Whereas a catalogue of structural, molecular, and functional differences between axons and dendrites is accumulating, the mechanisms involved in early events of neuronal differentiation, such as neurite initiation and elongation, are less well understood, mainly because the key molecules involved remain elusive. Here we describe the establishment and application of a microscopy-based approach designed to identify novel proteins invol
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Dissertations / Theses on the topic "Time-lapse biological experiment"

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MORTATI, LEONARDO MICHAEL. "Coherent Anti-Stokes Raman Scattering, Second Harmonic Generation and Two-Photon Excitation Fluorescence Multimodal Microscope: Realization, Metrological Characterization and Applications in Regenerative Medicine." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2509905.

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In the frame of the research in biology and in particular in regenerative medicine, it is widely requested the ability to perform measurements that have a low impact on the observed biological systems. Many measurements imply sample modifications and also sample fixation avoiding living samples measurements. In this doctoral thesis it is presented the realization of an advanced optical multimodal microscope that integrates coherent anti-Stokes Raman scattering, second harmonic generation and two-photon excitation fluorescence techniques in a single powerful tool. The combination of all these m
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Berry, Christopher J. J. "Post-dispersal seed predation in a conifer-broadleaf forest remnant : the importance of exotic mammals." Lincoln University, 2006. http://hdl.handle.net/10182/666.

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Despite extensive international acceptance of the critical role of mammalian post-dispersal seed predation in many plant communities, in New Zealand we have limited knowledge of these predators’ influence on plant recruitment in our forests. The principle objective of my thesis was to determine the importance of exotic mammals as post-dispersal seed predators in a New Zealand conifer-broadleaf forest remnant. To address this goal, I used a series of field-based experiments where the actions of different post-dispersal seed predators were separated by wire-mesh exclosures. My study was conduct
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