Protozoan
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This document summarizes characteristics of animal-like protists. It describes that they are single-celled microscopic organisms that move using cilia, flagella, pseudopodia, or are sessile. They can be free-living, commensal, parasitic, or mutualistic. Locomotion methods include cilia, flagella, pseudopodia projections, or being sessile without movement. Nutrition is heterotrophic or parasitic and reproduction can be asexual through binary fission or budding, or sexual through conjugation. Examples mentioned include Amoeba, Arcella, Trypanosoma, Paramecium, Vorticella, and Stentor.
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s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
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spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
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https://ashpc.eu/
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With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
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The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
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Protozoan
- 2. General Characteristics • Single-celled or unicellular organisms; • Size = microscopic (3 to 1,000 microns). • No germ layers, tissues, or organs; • However, specialized intracellular "organelles" are present
- 3. General Characteristics • Locomotion by pseudopodia, flagella, or cilia. • Symmetry = all types (bilateral, radial, or asymmetrical) • Free living, commensal, parasitic, or mutualistic • Mostly naked, but few have simple protective exoskeletons (tests). Ex. = Arcella
- 4. 4 Animal-like protists •classified by the structure used for movement: 1) Cilia - 2) Flagellum(a) - •Coordinated movement between individual cilia •Back and forth wave motion tiny beating hair-like structures whip-like tail(s) •All heterotrophs
- 5. 5 3) Pseudopodia - Animal-like protists projection of cytoplasm that sticks out like a foot (“false foot”) 4) Sessile - No locomotion (_________)movement
- 6. General Characteristics • Nutrition = heterotrophic, parasitic • Reproduction: asexual = longitudinal and transverse binary fission, budding, • Reproduction: sexual - conjugation
- 10. Left: live Amoeba proteus (100 x). Right: fixed, stained Amoeba with diatoms, nucleus (stained dark pink).
- 20. Paramecium
- 21. Binary Fission – Asexual Reproduction
- 22. Conjugation – sexual reproduction
- 23. Vorticella
- 24. Stentor