View allAll Photos Tagged understanding
Understanding the performance penalty: HTTP vs. HTTPS Pete Mastin (Cedexis), Sam Richardson (Microsoft
“Somewhere between understanding and forgiveness there is another wall, too wide to get around.”
- Rick Bragg
If you are reading this article, you are most likely open to exploring alternative ways of treating your skin and hair. Good for you! In fact, it’s good for all of us. The world of natural beauty is full of amazing discoveries that will keep you wondering how you could have used synthetic chemical skin … [Read more…]
Teste deine Fähigkeiten im Prompten und stell dich der Herausforderung an der Prompt Battle-Station! Wie präzise müssen die Anweisungen an eine KI sein, damit sie ein Bild genau nach unseren Vorstellungen erschafft? Gibt es Bilder, die eine KI nicht erstellen darf, und wer trifft diese Entscheidung?
Credit: Ars Electronica / Magdalena Sick-Leitner
Understanding Food Labels
Read the How to Understand Nutritional Food Label link located under the “Nutrition Facts Label Programs and Materials” section heading under “Consumers.” Read the Eating Healthier and Feeling Better Using the Nutrition Facts Label page link located on your student page...
www.uopguide.com/download/sci-241-understanding-food-labels/
Understanding construction contracts is vital for project success. In Arizona, these agreements outline materials, timelines, and costs, helping to prevent disputes over scope and payment. Clear terms lead to smoother projects. Facing construction challenges? Reach out to Denton Peterson Dunn for expert support.
Mania
Understanding City's Complexes
City's Neurosis
Neurotic City Hall
City of Hamilton, Parks, Recreation & Public Health, and Mental Health, and City's Social Disorder
Barriers
Barricades
Exclusion
Division
Public Lands
Public Property
Separation
Walls
Walled-Parks
Barricaded Park Lands
Segregation
Hate
Institutional Hatred
Public Protection
Civil Rights
Civic Rights
Civic Duty
Good Citizenship
Insanity
Psychotic Behaviour and Conduct of City and City Officials
Any Understanding Of God
75/02/16 Mexico City, Bhagavad-gita 2.16
Prabhupada: (translated into Spanish throughout by Hrdayananda)
nasato vidyate bhavo
nabhavo vidyate satah
ubhayor api drsto ‘ntas
tv anayos tattva-darsibhih
[Bg. 2.16]
So we are discussing about the soul and the body for...
Age: 346-344Ma
Viséan
Middle Mississippian Epoch
Carboniferous Period - Giant arthropods and amphibians, early reptiles, most plants fern or lycophyte-like, known for tropical forests and seas
Paleozoic Era - pre-Dinosaurs
Location: Lancashire
Clitheroe
Salthill Quarry
Rock Type: Course grained and coursely crinoidal limestone, with lots of calcite from crinoid structure, park of a knoll-reef from the Clitheroe Limestone Formation.
Specimen:
A large crinoid column about 3.5cm in diameter, 4cm at its widest, with the clear pentastellate axial canal visible. This section is only about 1-1.5cm tall
Species:
Bystrowicrinus westheadi is a newly described species (2013) based on remarkably large crinoid column (stem) fragments from the Lower Carboniferous (Mississippian) deposits at Salthill Quarry, Clitheroe, Lancashire, UK. These columns, long known about but previously not officially described or named, are unusual for their incredibly large size and distinctive pentastellate axial canal. The species name honours Stanley Westhead (1910–1986), a noted collector of fossil crinoids from Clitheroe whose contributions to the understanding of local crinoid fauna are still recognised today.
The columns of Bystrowicrinus westheadi are particularly noteworthy for their diameter, often reaching 3–6+cm, making them among the largest crinoid stems ever recorded. Their gross morphology includes a waisted shape in some pluricolumnals, where there is a sudden increase in diameter distally. This is unlike the gradual tapering beneath the crown seen in other crinoid stems and suggests a unique mesistele-dististele transition in Bystrowicrinus westheadi (that is, the transition between the thicker lower stem around the ‘root’ attachments (dististele), and the more flexible and narrow middle part of the stem (mesistele). This abrupt expansion may have served a stabilising function for the crinoid, facilitating attachment to the substrate by allowing room for the growth of robust, unbranched radices (roots). While the dististele appears inflexible, the distal mesistele shows flexibility at symplectial articulations.
The pentastellate shape of the axial canal is another unusual feature, especially given the column’s large size relative to its relatively small lumen. This structure would have allowed for limited soft tissue presence in the axial canal, predominantly serving nervous functions similar to extant crinoids, with nutrient absorption occurring through the ectoderm rather than much nutrient transport through the internal canal. Comparisons to Silurian crinoids showing radiating intracolumnal canals for nutrient transport, highlight that Bystrowicrinus westheadi likely lacked such extensive internal networks. However, the pentastellate canal and its extensions across the articular facets suggest a functional analog for slow nutrient and gas transport, potentially facilitating root development by branching to near each radix attachment site where the radial canals would occur, providing nutrients to the many radix holdfasts.
Despite the incomplete nature of the fossils, the considerable size of these crinoid stems implies they played a role in both anchoring the organism with their weight, and perhaps offering some form of protection. The absence of significant zoobiont infestation, common in other specimens from this site, may indicate a more defensive or protective function for the large columns of Bystrowicrinus westheadi.
Stanley Westhead, after whom this species is named, was an amateur geologist and prolific fossil collector in the Clitheroe area. His collection, now housed in the Natural History Museum, London, contains many rare and important crinoid specimens. While Westhead published little himself, his expertise in the local fossil echinoderm fauna was well respected, with several species described from his collection. His contributions to the field, especially regarding the crinoids of the Clitheroe area, continue to influence paleontological research today.
Bystrowicrinus westheadi is a newly described species (2013) based on remarkably large crinoid column (stem) fragments from the Lower Carboniferous (Mississippian) deposits at Salthill Quarry, Clitheroe, Lancashire, UK. These columns, long known about but previously not officially described or named, are unusual for their incredibly large size and distinctive pentastellate axial canal. The species name honours Stanley Westhead (1910–1986), a noted collector of fossil crinoids from Clitheroe whose contributions to the understanding of local crinoid fauna are still recognised today.
The columns of Bystrowicrinus westheadi are particularly noteworthy for their diameter, often reaching 3–6+cm, making them among the largest crinoid stems ever recorded. Their gross morphology includes a waisted shape in some pluricolumnals, where there is a sudden increase in diameter distally. This is unlike the gradual tapering beneath the crown seen in other crinoid stems and suggests a unique mesistele-dististele transition in Bystrowicrinus westheadi (that is, the transition between the thicker lower stem around the ‘root’ attachments (dististele), and the more flexible and narrow middle part of the stem (mesistele). This abrupt expansion may have served a stabilising function for the crinoid, facilitating attachment to the substrate by allowing room for the growth of robust, unbranched radices (roots). While the dististele appears inflexible, the distal mesistele shows flexibility at symplectial articulations.
The pentastellate shape of the axial canal is another unusual feature, especially given the column’s large size relative to its relatively small lumen. This structure would have allowed for limited soft tissue presence in the axial canal, predominantly serving nervous functions similar to extant crinoids, with nutrient absorption occurring through the ectoderm rather than much nutrient transport through the internal canal. Comparisons to Silurian crinoids showing radiating intracolumnal canals for nutrient transport, highlight that Bystrowicrinus westheadi likely lacked such extensive internal networks. However, the pentastellate canal and its extensions across the articular facets suggest a functional analog for slow nutrient and gas transport, potentially facilitating root development by branching to near each radix attachment site where the radial canals would occur, providing nutrients to the many radix holdfasts.
Despite the incomplete nature of the fossils, the considerable size of these crinoid stems implies they played a role in both anchoring the organism with their weight, and perhaps offering some form of protection. The absence of significant zoobiont infestation, common in other specimens from this site, may indicate a more defensive or protective function for the large columns of Bystrowicrinus westheadi.
Stanley Westhead, after whom this species is named, was an amateur geologist and prolific fossil collector in the Clitheroe area. His collection, now housed in the Natural History Museum, London, contains many rare and important crinoid specimens. While Westhead published little himself, his expertise in the local fossil echinoderm fauna was well respected, with several species described from his collection. His contributions to the field, especially regarding the crinoids of the Clitheroe area, continue to influence paleontological research today.
Echinodermata is a phylum of marine invertebrates that includes well-known groups like starfish, sea urchins, brittle stars, sea cucumbers, and crinoids. Echinoderms are characterised by their radial symmetry, typically arranged in fives, and their unique water vascular system, which aids in locomotion and feeding. This phylum is exclusively marine, and its members are often found on the sea floor, from shallow waters to the deep ocean. Echinoderms exhibit pentameral symmetry as adults, though their larvae are bilaterally symmetrical, reflecting their evolutionary relationship with other deuterostomes, including chordates.
Within this phylum, Class Crinoidea includes marine animals commonly referred to as sea lilies and feather stars. Crinoids are distinguished by their cup-shaped body (the calyx), a set of radiating arms, and a long stalk (in some species) that anchors them to the seabed. The arms are typically branched and covered with feathery extensions that aid in filter feeding, capturing small particles from the water. Though modern crinoids tend to be less prominent in marine ecosystems, they were once much more abundant and diverse, particularly during the Palaeozoic era.
Crinoids first appeared in the Ordovician period, about 480 million years ago, and quickly diversified. They were especially abundant during the Palaeozoic, with their greatest diversity occurring during the Carboniferous period, when extensive shallow seas created ideal conditions for large crinoid populations. Fossil crinoids are especially common in limestone deposits from this time, with entire beds of rock often composed almost entirely of disarticulated crinoid fragments, particularly their stems. These fossils are widespread in regions like the UK, where crinoid-rich limestone formations are frequently found.
Crinoids come in two main forms: stalked crinoids, or sea lilies, which attach to the sea floor via a flexible stalk, and unstalked crinoids, or feather stars, which are mobile and can swim or crawl along the substrate using their arms. In the fossil record, stalked crinoids were much more abundant, with long, segmented stalks that could grow several meters in length. The stalks are composed of individual ossicles, small calcareous plates that are commonly found as fossils, especially in Carboniferous limestone beds. The most well-known fossil remains of crinoids are these stem ossicles, which are often referred to as "Indian beads" due to their cylindrical shape.
Crinoids reached their peak during the Palaeozoic, forming extensive colonies in shallow seas, often in association with coral reefs. Their filter-feeding mechanism allowed them to occupy a specialised ecological niche, and they played an important role in marine ecosystems as suspension feeders. However, crinoids were significantly affected by the Permian-Triassic mass extinction about 252 million years ago, which wiped out many marine species. Although crinoids survived this event, their diversity and abundance were greatly reduced.
In the Mesozoic era, crinoids experienced a resurgence, though not to the same levels of diversity as in the Palaeozoic. Feather stars (unstalked crinoids) became more prominent during the Jurassic and Cretaceous periods, adapting to more mobile lifestyles compared to their sessile ancestors. Today, feather stars are found in a variety of marine environments, from shallow reefs to deep-sea habitats, while stalked crinoids are largely restricted to deep water.
Crinoids are unique among echinoderms in that they are suspension feeders, using their feathery arms to catch plankton and other small particles from the water. Their arms are lined with cilia that move captured food towards their central mouth, which is located on the upper surface of the calyx. This feeding strategy differs from other echinoderms, such as sea urchins, which graze on algae, or starfish, which are typically predatory.
Despite their decline in modern oceans, crinoids remain important in the fossil record due to their abundant and well-preserved remains, particularly in Palaeozoic and Mesozoic sedimentary rocks. The characteristic segmented stalks and calyx plates of crinoids make them highly recognisable fossils, and they provide key insights into the structure and biodiversity of ancient marine ecosystems. In particular, Carboniferous limestone deposits, such as those found in the UK, are often rich in crinoid remains, offering palaeontologists a detailed record of these once-dominant marine invertebrates.
06-1204-0166
1 of 6 -- follow my photostream. I recommend using the Slide Show function.
View large. Note a very narrow band of focus, which in part runs up and around my brow ridge. This is not a crop; this is a 24mm macro @ f/1.8, so DoF is a very slim disc parallel to the lens, the front of which is about 4.5 in. (11.5 cm) distant from the center of DoF.
Food Fest 2015, An International Understanding project for the year 2015 organized by the Interact District 3220 was held on 31st of May 2015 from 9.00am onwards at Kandy City Centre premises.
©KandyZone | Isuru Gimhana | Ushan Malshika |Editing, reproducing and re-using the images for commercial purpose or otherwise, without permission of KandyZone, are strictly prohibited and considered as intended copyright infringement
"Understanding Complexity - Offering Solutions to Problems of the 21st Century" Conference February 9th - 10th Vienna TUtheSky
Video credit: B and H
In photography, playing with light trails or creating light paintings always has a certain appeal to it. To this day, it remains to be one of the most popular subjects to master in Photography. Besides that, capturing stunning light photographs is such a fun ...
epfilms.tv/understanding-basics-capturing-light-painting-...
The organization working behind the scenes to improve Dash (the Dash Core Group), continues its usual tradition of releasing updates with new functionalities every six weeks with the upcoming release of v0.15 on Evonet at the start of this year’s 4th quarter (between Oct. 6th and Oct. 20). In order to prepare this update, it was necessary to wipe the entire Evonet blockchain and start fresh with the new parameters. As such, decentralized application developers had to back up and remove their data from the network and will reinstate it after the update.
In a statement issued by the company concerning this process, DCG stated that “while the approach is fine for early testing, it is not appropriate for testnet and mainnet. To handle different versions of data, nodes, and clients all working in coordination, Dash Core Group developers introduced versioning that allows for the smooth roll-out of breaking changes without affecting user experience”...
Read more: www.dashnation.com/media/news/understanding-the-improveme...
Thanks for reading!