A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.
A phylum of radially symmetrical invertebrates characterized by possession of stinging cells called nematocysts. It includes the classes ANTHOZOA; CUBOZOA; HYDROZOA, and SCYPHOZOA. Members carry CNIDARIAN VENOMS.
Nonmotile unicellular green algae potentially valuable as a source of high-grade protein and B-complex vitamins.
The upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the body by a neck, and containing the brain, mouth, and sense organs.

Expression and developmental regulation of the Hydra-RFamide and Hydra-LWamide preprohormone genes in Hydra: evidence for transient phases of head formation. (1/355)

Hydra magnipapillata has three distinct genes coding for preprohormones A, B, and C, each yielding a characteristic set of Hydra-RFamide (Arg-Phe-NH2) neuropeptides, and a fourth gene coding for a preprohormone that yields various Hydra-LWamide (Leu-Trp-NH2) neuropeptides. Using a whole-mount double-labeling in situ hybridization technique, we found that each of the four genes is specifically expressed in a different subset of neurons in the ectoderm of adult Hydra. The preprohormone A gene is expressed in neurons of the tentacles, hypostome (a region between tentacles and mouth opening), upper gastric region, and peduncle (an area just above the foot). The preprohormone B gene is exclusively expressed in neurons of the hypostome, whereas the preprohormone C gene is exclusively expressed in neurons of the tentacles. The Hydra-LWamide preprohormone gene is expressed in neurons located in all parts of Hydra with maxima in tentacles, hypostome, and basal disk (foot). Studies on animals regenerating a head showed that the prepro-Hydra-LWamide gene is expressed first, followed by the preprohormone A and subsequently the preprohormone C and the preprohormone B genes. This sequence of events could be explained by a model based on positional values in a morphogen gradient. Our head-regeneration experiments also give support for transient phases of head formation: first tentacle-specific preprohormone C neurons (frequently associated with a small tentacle bud) appear at the center of the regenerating tip, which they are then replaced by hypostome-specific preprohormone B neurons. Thus, the regenerating tip first attains a tentacle-like appearance and only later this tip develops into a hypostome. In a developing bud of Hydra, tentacle-specific preprohormone C neurons and hypostome-specific preprohormone B neurons appear about simultaneously in their correct positions, but during a later phase of head development, additional tentacle-specific preprohormone C neurons appear as a ring at the center of the hypostome and then disappear again. Nerve-free Hydra consisting of only epithelial cells do not express the preprohormone A, B, or C or the LWamide preprohormone genes. These animals, however, have a normal phenotype, showing that the preprohormone A, B, and C and the LWamide genes are not essential for the basic pattern formation of Hydra.  (+info)

Expression of a Hox gene, Cnox-2, and the division of labor in a colonial hydroid. (2/355)

We report the isolation and expression of the Hox gene, Cnox-2, in Hydractinia symbiolongicarpus, a hydrozoan displaying division of labor. We found different patterns of aboral-to-oral Cnox-2 expression among polyp polymorphs, and we show that experimental conversion of one polyp type to another is accompanied by concordant alteration in Cnox-2 expression. Our results are consistent with the suggestion that polyp polymorphism, characteristic of hydractiniid hydroids, arose via evolutionary modification of proportioning of head to body column.  (+info)

Modulation of Hydra attenuata rhythmic activity: phase response curve. (3/355)

We investigated the effect of photic stimulation on the frequency of Hydra attenuata column contractions. We used positive or negative abrupt light transitions, single or repetitive light or darkness pulses, and alternation of light and darkness periods. The main results are: (a) The frequency of the contraction pulse trains (CPTs) varies transiently in response to an abrupt variation of the light intensity. (b) CPTs in progress can be inhibited by different types of photic stimuli. (c) The response time to a single photic stimulus varies during the inter-CPT interval and depends also on the polarity of the stimulus. (d) The CPTs are entrainable with repetitive light stimulation of various frequencies. (e) Long-lasting variations of the frequency of CPTs occur after the end of a repetitive light stimulation. We suggest that the mechanism responsible for the rhythym of column contractions is quite similar to that on which other biological rhythmic phenomena are based.  (+info)

Interactions between the foot and bud patterning systems in Hydra vulgaris. (4/355)

In the freshwater coelenterate, hydra, asexual reproduction via budding occurs at the base of the gastric region about two-thirds of the distance from the head to the foot. Developmental gradients of head and foot activation and inhibition originating from these organizing centers have long been assumed to control budding in hydra. Much has been learned over the years about these developmental gradients and axial pattern formation, and in particular, the inhibitory influence of the head on budding is well documented. However, understanding of the role of the foot and potential interactions between the foot, bud, and head patterning systems is lacking. The purpose of this study was to investigate the role of the foot in the initiation of new axis formation during budding by manipulating the foot and monitoring effects on the onset of first bud evagination and the time necessary to reach the 50% budding point. Several experimental situations were examined: the lower peduncle and foot (PF) were injured or removed, a second PF was laterally grafted onto animals either basally (below the budding zone) or apically (above the budding zone), or both the head and PF were removed simultaneously. When the PF was injured or removed, the onset of first bud evagination was delayed and/or the time until the 50% budding point was reached was longer. The effects were more pronounced when the manipulation was performed closer to the anticipated onset of budding. When PF tissue was doubled, precocious bud evagination was induced, regardless of graft location. Removal of the PF at the same time as decapitation reduced the inductive effect of decapitation on bud evagination. These results are discussed in light of potential signals from the foot or interactions between the foot and head patterning systems that might influence bud axis initiation.  (+info)

Interactions between the foot and the head patterning systems in Hydra vulgaris. (5/355)

The Cnidarian, hydra, is an appealing model system for studying the basic processes underlying pattern formation. Classical studies have elucidated much basic information regarding the role of development gradients, and theoretical models have been quite successful at describing experimental results. However, most experiments and computer simulations have dealt with isolated patterning events such as the dynamics of head regeneration. More global events such as interactions among the head, bud, and foot patterning systems have not been extensively addressed. The characterization of monoclonal antibodies with position-specific labeling patterns and the recent cloning and characterization of genes expressed in position-specific manners now provide the tools for investigating global interactions between patterning systems. In particular, changes in the axial positional value gradient may be monitored in response to experimental perturbation. Rather than studying isolated patterning events, this approach allows us to study patterning over the entire animal. The studies reported here focus on interactions between the foot and the head patterning systems in Hydra vulgaris following induction of a foot in close proximity to a head, axial grafting of a foot closer to the head, or doubling the amount of basal tissue by lateral grafting of an additional peduncle-foot onto host animals. Resulting positional value changes as monitored by antigen (TS19) and gene (ks1 and CnNK-2) expression were assessed in the foot, head, and intervening tissue. The results of the experiments indicate that positional values changed rapidly, in a matter of hours, and that there were reciprocal interactions between the foot and the head patterning systems. Theoretical interpretations of the results in the form of computer simulations based on the reaction-diffusion model are presented and predict many, but not all, of the experimental observations. Since the lateral grafting experiment cannot, at present, be simulated, it is discussed in light of what has been learned from the axial grafting experiments and their simulations.  (+info)

CnOtx, a member of the Otx gene family, has a role in cell movement in hydra. (6/355)

Otx genes have been identified in a variety of organisms and are commonly associated with the patterning of anterior structures. In some vertebrates, Otx genes are also expressed in the prechordal mesoderm, where they may have a role in cell movement. Here we report the characterization of CnOtx, an Otx gene in hydra, thereby providing evidence that Otx genes appeared early in metazoan evolution. CnOtx is expressed at high levels in developing buds and aggregates, where it appears to have a role in the cell movements that are involved in the formation of new axes. Further, the gene is expressed at a low level throughout the body column of hydra. This latter pattern may reflect a role for CnOtx in specifying tissue as competent to be anterior, although the gene does not have a direct role in the formation of the head.  (+info)

A head-activator binding protein is present in hydra in a soluble and a membrane-anchored form. (7/355)

The neuropeptide head activator plays an important role for proliferation and determination of stem cells in hydra. By affinity chromatography a 200 kDa head-activator binding protein, HAB, was isolated from the multiheaded mutant of Chlorohydra viridissima. Partial amino acid sequences were used to clone the HAB cDNA which coded for a receptor with a unique alignment of extracellular modules, a transmembrane domain, and a short carboxy-terminal cytoplasmic tail. A mammalian HAB homologue with identical alignment of these modules is expressed early in brain development. Specific antibodies revealed the presence of HAB in hydra as a transmembrane receptor, but also as secreted protein, both capable of binding head activator. Secretion of HAB during regeneration and expression in regions of high determination potential hint at a role for HAB in regulating the concentration and range of action of head activator.  (+info)

Circularly permuted variants of the green fluorescent protein. (8/355)

Folding of the green fluorescent protein (GFP) from Aequorea victoria is characterized by autocatalytic formation of its p-hydroxybenzylideneimidazolidone chromophore, which is located in the center of an 11-stranded beta-barrel. We have analyzed the in vivo folding of 20 circularly permuted variants of GFP and find a relatively low tolerance towards disruption of the polypeptide chain by introduction of new termini. All permuted variants with termini in strands of the beta-barrel and about half of the variants with termini in loops lost the ability to form the chromophore. The thermal stability of the permuted GFPs with intact chromophore is very similar to that of the wild-type, indicating that chromophore-side chain interactions strongly contribute to the extraordinary stability of GFP.  (+info)

I'm sorry for any confusion, but "Hydra" is not a term commonly used in medical definitions. Hydra is a genus of small, simple aquatic animals, belonging to the class Hydrozoa in the phylum Cnidaria. They are named after the multi-headed creature from Greek mythology due to their ability to regenerate lost body parts.

If you're looking for a medical term related to hydra, one possibility could be "Hydralazine," which is a medication used to treat high blood pressure. It works by relaxing the muscle in the walls of blood vessels, causing them to widen and the blood to flow more easily.

I hope this information is helpful! If you have any other questions or need clarification on a different topic, please let me know.

Cnidaria is a phylum of aquatic animals that includes jellyfish, sea anemones, hydra, and corals. They are characterized by the presence of specialized stinging cells called cnidocytes, which they use for defense and capturing prey. Cnidarians have a simple body organization with two basic forms: polyps, which are typically cylindrical and attached to a substrate; and medusae, which are free-swimming and bell-shaped. Some species can exist in both forms during their life cycle.

Cnidarians have no true organs or organ systems, but they do have a unique tissue arrangement with two main layers: an outer epidermis and an inner gastrodermis, separated by a jelly-like mesoglea. They have a digestive cavity called the coelenteron, where they absorb nutrients after capturing and digesting prey. Cnidarians reproduce both sexually and asexually, with some species exhibiting complex life cycles involving multiple forms and reproductive strategies.

Chlorella is a type of single-celled, green freshwater microalgae that is rich in nutrients, including proteins, vitamins, minerals, and chlorophyll. It is often marketed as a dietary supplement or health food because of its high nutritional content. Chlorella contains all the essential amino acids, making it a complete protein source, and is also rich in antioxidants, such as vitamin C, beta-carotene, and various phytochemicals.

Chlorella has been studied for its potential health benefits, including its ability to support immune function, detoxify heavy metals from the body, improve digestion, and reduce chronic inflammation. However, more research is needed to confirm these potential benefits and determine safe and effective dosages. It's important to note that chlorella supplements are not regulated by the FDA, so it's crucial to choose reputable brands and consult with a healthcare provider before taking any new supplements.

In medical terms, the "head" is the uppermost part of the human body that contains the brain, skull, face, eyes, nose, mouth, and ears. It is connected to the rest of the body by the neck and is responsible for many vital functions such as sight, hearing, smell, taste, touch, and thought processing. The head also plays a crucial role in maintaining balance, speech, and eating.

Look up Hydra or hydra in Wiktionary, the free dictionary. Hydra generally refers to: Lernaean Hydra, a many-headed serpent in ... 2005 Hydra (Toto album), or the title song, 1979 Hydra (Within Temptation album), 2014 Hydra, an album by Iris, 2008 "Hydra", a ... Hydra (constellation) Hydra (moon), a satellite of Pluto Hydra (chess), a chess computer Hydra (digital repository), an open- ... lead ship of the Hydra class frigate HMS Hydra (1797), a 38-gun fifth rate HMS Hydra (1838), a wooden steam paddle sloop Hydra- ...
Wright, Jonathan (1997). "Hydra". Hydra: Facts Sheet. Quinn, Brian; Gagne, Francois; Blaise, Christian (2012). "Hydra, a model ... Hydra viridissima is commonly called green hydra due to its coloration, which is due to the symbiotic green algae Chlorella ... The Hydra regulates the population of the Chlorella algae by digesting excess algae or controlling algal cell division. Hydra ... Hydra are typically hermaphroditic or gonochoric. Uniquely to Hydra, the medusa stage is absent and only the polyps will ...
... (Heroes Reborn) at Marvel Wiki Madame Hydra (Elisa Sinclair) at Marvel Wiki Madame Hydra VI at Marvel Appendix ... Madame Hydra appears in Marvel Universe: LIVE!. An action figure of the Viper incarnation of Madame Hydra was released in ... It is a name given to a top female operative of HYDRA. This operative of HYDRA may have impressed her superiors enough that, ... In the Heroes Reborn reality, Madame Hydra is a terrorist leader. She answers to HYDRA's leader the Mandarin, who is actually a ...
The Hydra Spyder is an open-top amphibious sportscar which began production in 2006. It is produced and marketed by Cool ... Official Hydra Spyder page [1] (Wheeled amphibious vehicles). ...
The Hydra 70 family of folding-fin aerial rockets also includes smoke screening, illumination, and training warheads. Hydra 70 ... "Hydra 70", Munitions, Military, Global Security. Hydra 70 (PDF), GDATP, archived from the original (PDF) on 4 July 2010, ... carry the Hydra rocket launcher standard on its weapon pylons. The family of Hydra 70 (70 mm) 2.75 inch rockets perform a ... The Hydra 70 rocket system is also used by the U.S. Navy, and the U.S. Air Force. In 2019, a 72-year-old Taiwanese man was ...
Hydra polyps are small and transparent which makes it possible to trace single cells in vivo. In addition, transgenic Hydra ... Since transgenic Hydra lines have become an important tool to dissect molecular mechanisms of development, a "Hydra Transgenic ... Cnidarians such as Hydra have become attractive model organisms to study the evolution of immunity. However, despite long-term ... 10(1):R8 Transgenic Hydra facility at the University of Kiel (Germany) (Articles with short description, Short description is ...
The Hydra team originally planned to have Hydra appear in four versions: Orthus, Chimera, Scylla and then the final Hydra ... Two versions of Hydra participated in the tournament- Hydra Chimera (without human intervention) scored 3½/8, and Hydra Scylla ... Hydra defeated Adams by a score of 5½ to ½; Adams lost each game except for game 2 which he drew. This version of Hydra was ... Hydra was under the patronage of the PAL Group and Sheikh Tahnoon Bin Zayed Al Nahyan of Abu Dhabi. The goal of the Hydra ...
After leaving, the Hydra Supreme is chained up as one of the guards whispered "Hail Hydra" into his ear. Due to the Hydra ... As Hydra began to fall, most of Hydra's Avengers members, Odinson, the Taskmaster, and the Black Ant, began to betray Hydra, ... Recognizing them as Hydra sleeper agents, he feigns allegiance with Hydra to trick them into giving him the scepter. Hydra ... Hydra agents appear in Lego Marvel Super Heroes. Known members include Red Skull, Armin Zola and Hydra Agent. Hydra agents ...
The Razer Hydra comes bundled with an enhanced version of Portal 2. It features a more advanced portal gun with new gameplay ... The Razer Hydra (previously known as Sixense TrueMotion) is a motion and orientation detection game controller developed by ... "Razer Hydra Gets Own Portal 2 Version". Rockpapershotgun.com. Retrieved 2011-02-10. "The Most Versatile Musical Instrument". ... "Razer Hydra Review". Maximumpc.com. Retrieved 2011-09-12. (Articles with short description, Short description is different from ...
... , also known as the brown hydra, is a species of hydra found widely dispersed in the northern temperate zone. It ... Hydra oligactis is preyed upon by the flatworm Microstomum lineare, which incorporates Hydra stenoteles into its own epidermis ... Wikimedia Commons has media related to Hydra oligactis. Schuchert, P. (2015). Schuchert P (ed.). "Hydra oligactis Pallas, 1766 ... Krohne, Georg (2020). "Hydra nematocysts in the flatworm Microstomum lineare: in search for alterations preceding their ...
Davis remained with Hydra on their first two LP's, before leaving the group to join the hard rock outfit Rex, and then briefly ... Hydra's reputation as a solid live act in the Atlanta, Georgia area began to spread and the band expanded their territory.[ ... Hydra is an American Southern rock band founded in 1970 by Spencer Kirkpatrick (guitar), Wayne Bruce (vocals and guitar), Steve ... In 1977, as a three-piece band (with Wayne Bruce now on bass), Hydra released Rock the World. Some reviewers,[who?] including ...
... (Afrikaans: Hydrabaai), also known as Romansbaai, is a bay in South Africa near the settlement of Van Dyks Bay. Hydra ...
The Hydra Cluster (or Abell 1060) is a galaxy cluster that contains 157 bright galaxies, appearing in the constellation Hydra. ... The Hydra Supercluster An Atlas of the Universe.com Fitchett, Michael; Merritt, David (December 1988). "Dynamics of the Hydra I ... Hydra Cluster, Galaxy clusters, Abell objects, Abell richness class 1, Hydra-Centaurus Supercluster, All stub articles, Galaxy ... ApL Letters The Hydra Cluster on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images ...
The species name hydra comes from the name of the fictional deity Hydra created by H.P. Lovecraft. "Fujuriphyes hydra Cepeda, ... Fujuriphyes hydra is a species of mud dragon within the family Pycnophyidae. It was described from the Mozanbique Channel after ... cite journal}}: Cite journal requires ,journal= (help) "WoRMS - World Register of Marine Species - Fujuriphyes hydra Cepeda, ...
Scuola Italiana Roma di Algeri, a private Italian international school, is in Hydra. It was formerly in another campus in Hydra ... Hydra (Arabic: حيدرة, ḥaydarat) is a commune in Algiers province, Algeria. It is located in Bir Mourad Raïs district, in the ... "rue Icosium, 1, Hydra-Algeri" Kobori, Iwao (Conseiller aupres del'Universite des Nations Unies). "L'Algerie et moi" (Archive). ... "Address : 62, Djenane El-Malik Paradou - Hydra - Alger" "Home page" (Archive). Scuola Italiana Roma di Algeri. Retrieved on 19 ...
... (2007) Hydra Technologies (2007). Official website (CS1 Spanish-language sources (es), All articles with ... Development of the Hydra Technologies Ehécatl began in 2002 as a joint effort between the Government of Mexico, the Financial ... Hydra Technologies is a Mexican firm dedicated to the design and development of unmanned aerial vehicles for surveillance ... The Hydra Technologies Gavilán is a miniature UAV with ninety minutes of flight autonomy, controlled by a single user through a ...
Named in honor of Hydra, founding member of the WFTDA and first president of the association, the Hydra Trophy was first ... The Hydra Trophy is the trophy awarded to the Women's Flat Track Derby Association (WFTDA) team that wins the WFTDA ... Before the Hydra Trophy: WFTDA Archived 2010-11-14 at the Wayback Machine 2010 WFTDA Championship (Webarchive template wayback ... Since its creation, the Hydra Trophy has been awarded eight times, with the Gotham Girls Roller Derby All-Stars winning five ...
Like other hydras, Hydra vulgaris cling to a base object with a "foot" pad, shaped like a disk. The Hydra moves by releasing ... A miniature adult hydra will grow out of the body of the parent hydra. Once fully developed, it will separate from the parent ... When a hydra is cut into segments, each segment, if large enough, will grow into an individual hydra sized relative to the size ... Hydras use this kind of reproduction more often because it is easier and will create more hydras than other methods. The third ...
Only two Hydras were built, the type never entered production. It appears the Hydra was built as a "backup" design in case the ... so given the possibility of using four valves on the Hydra, it seems odd this was not attempted. Only two Hydras were built. ... Design of the Hydra was led by Frank Owner, who built an experimental V-4 design to test a new twin overhead cam design, a ... The Bristol Hydra (also known as the Double Octagon) was an experimental 16-cylinder, twin-row radial aircraft engine built by ...
"Hydra". Film Critics United. Retrieved May 1, 2012. Hydra at IMDb Hydra at AllMovie Hydra (film) at Rotten Tomatoes (Articles ... Hydra (also known as Hydra: The Lost Island) is a 2009 low-budget monster movie by Andrew Prendergast and Peter Sullivan, which ... The Hydra kills Camden from behind, then devours Dixie. Tim grabs the magic sword again and this time, he really kills the ... Cammon is torn apart and eaten by the Hydra. Tim manages to cut off its heads for good, but fails to cut the last head ...
... is a moth of the family Erebidae. It was described by Arthur Gardiner Butler in 1871. It is found in Ecuador and ...
... can be integrated with third-party software. Hydra OMS internally consists of: PostgreSQL for data keeping Activiti ... 2016/06/04 Hydra OMS on Product Hunt Hydra OMS - First open-source order management system, 2016/07/14 (Articles with topics of ... Hydra OMS is an open-source order management system and workflow suite for managing service/job orders and business processes. ... Hydra OMS allows companies to automate their order execution, build business process models with ISO standardized BPMN 2.0 and ...
The Lernaean Hydra or Hydra of Lerna (Greek: Λερναῖα Ὕδρα, Lernaîa Hýdra), more often known simply as the Hydra, is a ... The Hydra possessed many heads, the exact number of which varies according to the source. Later versions of the Hydra story add ... "Hydra" . Encyclopædia Britannica. Vol. 14 (11th ed.). 1911. pp. 33-34. "Statue of Heracles battling the Lernaean Hydra at the ... The Hydra's one immortal head was cut off with a golden sword given to Heracles by Athena. Heracles placed the head-still alive ...
This gives Hydra the measured dimensions of 50.9 km × 36.1 km × 30.9 km (31.6 mi × 22.4 mi × 19.2 mi). The surface of Hydra is ... Hydra has an orbital period of approximately 38.2 days and is resonant with other moons of Pluto. Hydra is in a 2:3 orbital ... Explanations for Hydra's bluish color suggest that the surface of Hydra has a higher amount of water ice compared to Nix, which ... By distance, Hydra is the fifth and outermost moon of Pluto, orbiting beyond Pluto's fourth moon Kerberos. Hydra has a highly ...
Hydra Athletic Club (Arabic: أمل حيدرة), known as Hydra AC or HAC for short, is an Algerian football club based in the Hydra ... Hydra Le club fête ses 70 ans cette année, Le HAC veut renaître de ses cendres; InfoSoir, May 5, 2006. Inter-région (4e div) : ... In 1962, after the independence of Algeria, the name of the club was changed to Hydra AC by Ali Benfadah, a player at the club ... Their home stadium, Stade de Hydra, has a capacity of 4,000 spectators. The club is currently playing in the Inter-Régions ...
The hydra effect or hydra paradox owes its name to the Greek legend of the Lernaean Hydra which grew two heads for each one cut ... The hydra effect has also been used about negative outcomes when shutting down torrent sites which come back in more ... Most notably, scientists have proposed that ecological systems can exhibit a hydra effect when "a higher death rate in a ... Elias Garcia (4 September 2014). "The Hydra Effect and the War on Drugs". Archived from the original on 24 May 2015. Retrieved ...
... was a magazine produced by the patients of the Craiglockhart War Hospital, noteworthy for having been edited at one ... Scanned copies of The Hydra at the First World War Poetry Digital Archive v t e v t e (Use dmy dates from October 2017, Use ... The Hydra is mentioned in Pat Barker's novel Regeneration about the experiences of patients at Craiglockhart War Hospital ... "Recovering Hydra". Oxford Today. 6 October 2014. Retrieved 31 October 2015. "MS 2 Lieutenant Patrick Wright Anderson, Black ...
About the Hydra Club by Frederik Pohl Key to the Hydra Club by Mike Glyer in File 770 (Science fiction fandom). ... "The Legendary Hydra Club". Mimosa 25. Rich and Nikki Lynch. Retrieved 7 August 2014. Judith Merril. "The Hydra Club". Marvel ... The Hydra Club was a social organization of science fiction professionals and fans. It met in New York City during the 1940s ... As nine founders were present, the club took its name from the legendary nine-headed monster, the Hydra. Among its members were ...
The Hydra is a 22-person hydrogen boat, power-assisted by an electric motor that gets its electricity from a fuel cell. Its ... The idea for this project came from Christian Machens in 1999 for designing and building the fuel cell system for the Hydra in ... Rules for classification and construction Specification The passenger boat Archived 2008-09-30 at the Wayback Machine Hydra v t ...
In mathematics, especially mathematical logic, graph theory and number theory, the Buchholz hydra game is a type of hydra game ... The hydra game can be used to generate a rapidly growing function, B H ( n ) {\displaystyle BH(n)} , which eventually dominates ... the hydra will then choose an arbitrary n ∈ N {\displaystyle n\in \mathbb {N} } , where n {\displaystyle n} is a current turn ... The game is played on a hydra, a finite, rooted connected tree A {\displaystyle A} , with the following properties: The root of ...
  • Greek ship Hydra, a list of Hellenic Navy vessels HMS Hydra, a list of British Navy vessels Hydro (disambiguation) Hydrus, a small constellation in the deep southern sky Ghidra, reverse engineering software All pages with titles beginning with Hydra All pages with titles containing Hydra This disambiguation page lists articles associated with the title Hydra. (wikipedia.org)
  • For more information on the constellation of Hydra, click here . (universetoday.com)
  • The Hydra constellation is located about 15 million light-years away and the Southern Pinwheel Galaxy has a spiral with a classic grand design. (lu.se)
  • The name Hydra, which is derived from the nine-headed serpent of Greek mythology, was selected for two reasons. (universetoday.com)
  • The mansion was recently acquired by the Greek Ministry of Culture and was renovated to house the Kountouriotis family Museum and the Post Byzantine Art and History Museum of Hydra. (greeka.com)
  • Departing from two metaphors that represent groupality, the Greek myth of Lerna s Hydra and the ice-cream cup , we propose representations for groups that allow the identification of intersubjectivity and transubjectivity. (bvsalud.org)
  • The Hydra create a three room extravaganza at Drumsheds, London on Friday 8th December 2023. (skiddle.com)
  • The Tombazis Mansion is a massive four-storied building on the west side of Hydra harbor near the statue of Kountouriotis. (greeka.com)
  • When you disembark at the picture-perfect, crescent-shaped harbor on your Hydra cruise, the first thing you'll notice is the serenity and intense quiet. (celebritycruises.com)
  • Twice each year, the Hydra Nautical Club hosts regattas that bring sailboats and yachts to the harbor and add an extra touch of glamour to the island. (celebritycruises.com)
  • The mansion now houses the School of Mercantile Marine Officers of Hydra, the oldest school of its kind in Greece. (greeka.com)
  • Most beaches in Hydra Greece are pebbled and have picturesque, green surroundings. (greeka.com)
  • Hydra was first discovered in June 2005 by the Hubble Space Telescope 's "Pluto Companion Search Team", using images that were taken on May 15th and 18th of that year. (universetoday.com)
  • Hydra Figue pays tribute to Miller Harris's ethos of rich storytelling and search for beauty in the everyday. (millerharris.com)
  • For skin that is ideally repaired and plumped up in the morning, apply a thick layer of HYDRA BEAUTY NUTRITION Nourishing and Protective Cream for Dry Skin in the evening. (chanel.com)
  • Although it is extremely difficult to obtain and study live coral polyps in the classroom, hydras, freshwater cousins of corals, are readily available. (carleton.edu)
  • We are moving content from our Hydra repository ( hydra.hull.ac.uk ) to new repositories. (hull.ac.uk)
  • All journal articles on Hydra have now been moved to the University of Hull Research Repository . (hull.ac.uk)
  • Hydra is developing an "end-to-end, flexible, extensible, workflow-driven application kit" for the Fedora repository software in short, a configurable scholar's workbench. (dlib.org)
  • The star-spangled Avenger is getting ready to kick some major butt with the Captain America Allied Charge on Hydra Premium Format Figure, offering a unique look that blends his comic book look with what he'd look like in real life. (geekalerts.com)
  • Because of the uncertainty in these measurements, Hydra is either comparable in size to either the main moons of Saturn and Neptune, or the inner and irregular moons of Jupiter, Saturn and Uranus. (universetoday.com)
  • Observations made with the Hubble Telescope in 2005-06, which specifically targeting the two moons, once again confirmed that Hydra is the brighter of the two. (universetoday.com)
  • For active and lasting hydration, start your routine with Hydra-Sérum. (dermstore.com)
  • Bees Brilliance Instant Hydra Firming Shot is a daily hydrating and cooling moisturiser helping to encourage optimal hydration levels throughout the day. (hollandandbarrett.com)
  • Hydra Figue is a fragrance that explores these references with honesty. (millerharris.com)
  • The Mansions of Hydra are the island's most distinctive and striking feature. (greeka.com)
  • The Goroyannis Mansion was built in 1780 and remains one of the oldest mansions in Hydra. (greeka.com)
  • Other well-known mansions on Hydra include the mansions of Votsis and Oikonomou, as well as Boudouris and Miaoulis Mansion on the western side of the city. (greeka.com)
  • As you walk Hydra Town, you'll be charmed by streets lined with bougainvillea, the neoclassical architecture of old manor houses and mansions, and churches both humble and ornate. (celebritycruises.com)
  • Hydra is the nine-headed serpent that guarded the underworld. (nysun.com)
  • Razer worked closely with Valve and Sixense to create exclusive Portal 2 content to showcase the power of the Razer Hydra in enhancing game immersion. (engadget.com)
  • The Razer Hydra is a significant step forward for the PC gaming industry because it not only affords an almost-physical experience for gamers, but also presents developers an opportunity to innovate and significantly push the boundaries on new forms of gameplay and entertainment,' said Gabe Newell, co-founder and president of Valve. (engadget.com)
  • Hydra-Stop, based in Burr Ridge, IL, is the largest insertion valve and line stop fitting manufacturer in the world. (wateronline.com)
  • As the latest addition to Hydra-Stop's award-winning Insta-Valve family of solutions, customers with 20- and 24-inch pipes can now benefit from the only insertable gate valve with the superior performance and reliability you would expect from the Insta-Valve name. (wateronline.com)
  • The 14"- 16" Insta-Valve Plus 250 from Hydra-Stop is the next generation of permanent, insertable gate valves offering increased strength, improved performance, and simplified installation and operation. (wateronline.com)
  • In this segment from Virtual Water Expo, Steve Roehrig from Hydra-Stop presents about the benefits of valve insertion. (wateronline.com)
  • Simplify distribution maintenance using the Insta-Valve 250 insertion valve from Hydra-Stop. (wateronline.com)
  • On a cruise to Hydra, you can't help but be captivated by its natural beauty, like its stunning beaches, crystal-clear waters quietly lapping at the shores, and the Peloponnese Mountains as a constant backdrop. (celebritycruises.com)
  • Excursion boats depart from the port and make the tour of the island, stopping at many Hydra beaches along the way. (greeka.com)
  • The most popular Hydra beaches are Vlichos, Kaminia, Bisti and Agios Nikolaos. (greeka.com)
  • You will find below a list of the best beaches in Hydra island. (greeka.com)
  • Discover our guide to 10 beautiful Hydra beaches. (greeka.com)
  • The Pluto system seen from the surface of Hydra. (universetoday.com)
  • By June 21st, 2006, the name Hydra was assigned by the IAU (along with the formal designation Pluto III). (universetoday.com)
  • Hydra appears to be spectrally neutral like Charon and Nix (i.e. greyish), whereas Pluto is reddish. (universetoday.com)
  • As with the rest of the Pluto system, Hydra was imaged by NASA's New Horizons spacecraft in February of 2015. (universetoday.com)
  • EDT, July 14, 2015, it will provide the most detailed images of Hydra and the Pluto system to date. (universetoday.com)
  • Kaminia is a small pebbled beach close to Hydra Town. (greeka.com)
  • Mandraki is a lovely beach in close distance from Hydra Town. (greeka.com)
  • BURBANK, Calif. , Jan. 16, 2015 /PRNewswire/ -- Hydra-Electric Company, a provider of breakthrough technology in sensors and switches for the aerospace industry, announces the launch of its redesigned website www.hydraelectric.com , showcasing industry relevant content, crisp design and a vibrant presentation. (prnewswire.com)
  • You can request the remaining content from Hydra by filling out the form below. (hull.ac.uk)
  • The full version of the game plus the exclusive Portal 2 content will be available in a special edition bundle with the Razer Hydra. (engadget.com)
  • They'll also enjoy the exclusive new Portal 2 content created specifically for the Razer Hydra, giving them more bang for their buck. (engadget.com)
  • 2. Apply Dior Hydra Life Sorbet Water Essence to visibly plump your skin. (fenwick.co.uk)
  • Hydra is basically the equivalent of raids in Destiny 2 or in World of Warcraft, hard mode or otherwise. (reddit.com)
  • The objective of this mission is to stop the Hydra helicopter from flying away-you basically need to beat up the helicopter. (ign.com)
  • Do NOT exceed 100x magnification to avoid dipping the objective lens into the water and potentially damaging the hydra. (carleton.edu)
  • The last line in the quotes '' tells hydra where the parameters/fields are on the site. (unix.com)
  • Embryolisse Hydra-Serum (1 fl. (dermstore.com)
  • Enriched in white nymphaea and hyaluronic acid active complex, Hydra-Serum from Embryolisse instantly revitalizes the skin. (dermstore.com)
  • They are all presented with a detailed description, photos and their location on a map of Hydra. (greeka.com)
  • Industry Nine Enduro S Hydra wheelset elevates your ride with 28 straight-pull spokes, a proven rim profile and Hydra-equipped hubs. (rei.com)
  • York created the Hydra Mission Series because "we've got this flight proven spacecraft bus and this very adaptable architecture that can accommodate lots of different payloads," Preisser said. (spacenews.com)
  • When i execute it with these settings, the commandprompt just reruns the hydra.exe file(wich prints the list of commands for hydra) and ignores these settings. (unix.com)
  • HYDRA BEAUTY NUTRITION soothes, repairs and protects to delight weakened and dry skin. (chanel.com)
  • Beauty Bakerie's The Butter Hydra Silk Primer is a lightweight, hydrating primer that provides your skin a smooth canvas and extends the wear of makeup. (ulta.com)
  • We travelled to Hydra with London based photographer Louis Sheridan to explore how the slow living pace and rich natural habitat of the island can cultivate creativity. (millerharris.com)
  • This page of IGN's Midnight Suns wiki guide contains a walkthrough of the Stop the Hydra Helicopter Story Mission. (ign.com)
  • The first Hydra mission, scheduled to launch in December, is "fully subscribed with multiple customers," according to the Jan. 7 news release. (spacenews.com)
  • Customers "will receive completely confidential encrypted data from the Hydra series satellites on-orbit automatically," the news release said. (spacenews.com)
  • To get the latest news and videos, connect with Hydra-Stop on LinkedIn , Twitter , and YouTube . (wateronline.com)
  • Our new website is already helping customers access pertinent information about our products," said Tim Burmood , Director of Sales at Hydra-Electric. (prnewswire.com)
  • The redesign reflects our continual focus at Hydra to improve the service and products we deliver to the aerospace industry. (prnewswire.com)
  • The Sensors and Switches sections explain how Hydra-Electric's sensing technology is differentiated, offering detailed product characteristics, and a summary of programs and applications where the products have been used. (prnewswire.com)
  • Hydra-Electric's products have been used across hundreds of military and commercial applications, including fixed wing and rotary aircraft, missiles, rockets, ships, submarines, tanks and UCAVs. (prnewswire.com)
  • Since 1977 Hydra-tech Pumps has pioneered the development of Hydraulic Drive Submersible Pumps and continues to produce new and innovative products to keep pace with today`s changing world. (environmental-expert.com)
  • Smith sees Hydra-Slide's acquisition as a crucial step necessitated by the uptick in demand for Hydra-Slide's products, as well as the growing awareness of its brand. (khl.com)
  • Spilia is a lovely place within walking distance from Hydra Town. (greeka.com)
  • Multiple language options serve Hydra-Electric's international aerospace community. (prnewswire.com)
  • LOS ANGELES - Meet the newest kids in the solar system: Nix and Hydra. (nysun.com)
  • Mark Cleland, a former management consultant and General Electric (GE) business leader, has acquired Canada-based skidding system manufacturer Hydra-Slide. (khl.com)
  • Body parts of hydra. (carleton.edu)
  • The Razer Hydra lets you extend your natural body motion directly into your PC games. (engadget.com)
  • Luckily, there are many similarities between these two animals, so studying hydras can help us understand more about corals. (carleton.edu)
  • If so, you understand the significance of the Hydra Takeover Glow Tank Top. (geekalerts.com)
  • Researchers show how an algorithm for filtering spam can learn to pick out, from hours of video footage, the full behavioral repertoire of tiny, pond-dwelling Hydra. (eurekalert.org)
  • Show your true allegiance - and your other true allegiance - with the Marvel's Agents of S.H.I.E.L.D. HYDRA Ring. (geekalerts.com)
  • Using a medicine dropper, carefully place a live hydra culture and a few drops of water into the indentation of a well or depression slide. (carleton.edu)
  • As Hydra the Water Snake slinks along our southern horizon this month, it brings with it several interesting binocular targets. (astronomy.com)
  • 1. Prime your skin with Dior Hydra Life 2 in 1 Sorbet Water for a hydrating and rebalancing action. (fenwick.co.uk)
  • For over 35 years, Hydra-Stop has provided solutions for water control to thousands of municipalities and contractors around the world. (wateronline.com)
  • Hydra-Stop assists municipalities, water utilities, contractors and engineers manage and maintain aging water systems while minimizing the disruption of the most basic human need. (wateronline.com)
  • An added benefit to the program is the Hydra Flat-Sat software, a development tool that further streamlines payload integration and responsive access to space. (spacenews.com)
  • It's in the center of a large galaxy cluster named the Hydra A Cluster that's 840 million light years away. (bellaonline.com)
  • There is also a Hydra Cluster (Abell 1060) 158 million light years away and containing 157 galaxies. (bellaonline.com)
  • I hate Hydra, and my best team including Tatura can only pull 2 mil on Easy. (reddit.com)
  • The members of the team that developed RepoMMan and REMAP are now part of an international collaboration, the Hydra Project, which brings them together with teams from Stanford University, the University of Virginia and Fedora Commons. (dlib.org)
  • Founded in 2011 by father/daughter team Don Mahnke and current-CEO Janine Smith, Hydra-Slide has grown steadily over the last 12 years. (khl.com)
  • Mark Cleland and family pose with the entire Hydra-Slide team on his first day as president of the organization. (khl.com)
  • Don Mahnke will continue to serve in an advisory capacity while the rest of the Hydra-Slide team will remain in place. (khl.com)
  • Hydra missions are designed for rapid turnaround times. (spacenews.com)
  • 18 months ago, The Hydra closed out the first iteration of The Drumsheds with two of their most iconic shows to date (To Be & Not To Be). (skiddle.com)
  • The DESTE Foundation for Contemporary Art on Hydra, housed in a former slaughterhouse, showcases artists in exhibitions throughout the summer months. (celebritycruises.com)
  • Demand is likely to be strong enough to launch a second Hydra mission approximately three months later, Preisser said. (spacenews.com)
  • For more information on New Horizons mission to Hydra, click here . (universetoday.com)
  • York's first flight in the new Hydra Mission Series is scheduled to launch in December 2020. (spacenews.com)
  • The Hydra Book Light takes the hassle out of reading in the dark. (geekalerts.com)
  • It is reached by taxi boat or on foot from Hydra Town. (greeka.com)
  • Hydronetta is a rocky coast within distance from Hydra Town. (greeka.com)
  • Agios Nikolaos is a remote, pebbled beach that can be reached either on foot or by boat from Hydra Town. (greeka.com)
  • The helicopter itself doesn't attack you-all the Hydra units will do that instead, and new reinforcements will arrive each turn. (ign.com)
  • Hydrate, nourish your skin and sooth feelings of discomfort with Dior Hydra Life Intense Sorbet Creme. (fenwick.co.uk)
  • Discover the best things to see in Hydra . (greeka.com)
  • The Hydra Project will incorporate many of the ideas developed in Hull over the last four years. (dlib.org)
  • York customers have expressed strong interest in the Hydra series. (spacenews.com)
  • York's Hydra series is designed to strengthen the U.S. space infrastructure, said Preisser, a former U.S. Air Force officer who oversaw various space and intelligence programs at the Pentagon and Air Force Space and Missile Systems Center. (spacenews.com)