Box jellyfish: I'm about 95 percent water and I can kill you
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This is a short presentation of one of the most (probably the most) venomous animal in the world: box jellyfish. Our group of students at Telecom Academy works on poisonous and venomous animal. Go on the page: telecomacademy.pbworks.com/w/page/91790382/FrontPage
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Jellyfish have an umbrella-shaped bell and trailing tentacles. They use their pulsating bell for locomotion and stinging tentacles to capture prey. Jellyfish eat smaller fish, eggs, larvae, zooplankton, and other jellyfish that become trapped in their tentacles. They have a simple digestive system with one opening that serves as both a mouth and anus.
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This document provides an overview of jellyfish. It describes jellyfish as invertebrate ocean animals with gel-like bodies and tentacles. They move using water expelled from their bell-shaped bodies and waves. Jellyfish eat smaller fish and plankton, catching prey with their stinging tentacles. They can live in hot or cold ocean waters around the world. The document also includes a poem about jellyfish and their features.
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Box jellyfish contain a potent venom that has caused over 5,000 deaths in Australia. Their venom attacks the heart, nervous system and skin cells, and a sting can cause death within minutes from cardiac arrest. Box jellyfish have 24 eyes, 15-foot long tentacles containing millions of venom capsules that can fire upon contact with chemicals on surfaces. Their venom is so toxic that 1 microgram per kilogram of body weight can be lethal in humans.
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Direct Seeded Rice - Climate Smart Agriculture
Direct Seeded Rice - Climate Smart AgricultureInternational Food Policy Research Institute- South Asia Office
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
Summary Of transcription and Translation.pdf
Hello Everyone Here We are Sharing You with The process of protien Synthesis in very short points you will be Able to understand It Very well
JAMES WEBB STUDY THE MASSIVE BLACK HOLE SEEDS
The pathway(s) to seeding the massive black holes (MBHs) that exist at the heart of galaxies in the present and distant Universe remains an unsolved problem. Here we categorise, describe and quantitatively discuss the formation pathways of both light and heavy seeds. We emphasise that the most recent computational models suggest that rather than a bimodal-like mass spectrum between light and heavy seeds with light at one end and heavy at the other that instead a continuum exists. Light seeds being more ubiquitous and the heavier seeds becoming less and less abundant due the rarer environmental conditions required for their formation. We therefore examine the different mechanisms that give rise to different seed mass spectrums. We show how and why the mechanisms that produce the heaviest seeds are also among the rarest events in the Universe and are hence extremely unlikely to be the seeds for the vast majority of the MBH population. We quantify, within the limits of the current large uncertainties in the seeding processes, the expected number densities of the seed mass spectrum. We argue that light seeds must be at least 103 to 105 times more numerous than heavy seeds to explain the MBH population as a whole. Based on our current understanding of the seed population this makes heavy seeds (Mseed > 103 M⊙) a significantly more likely pathway given that heavy seeds have an abundance pattern than is close to and likely in excess of 10−4 compared to light seeds. Finally, we examine the current state-of-the-art in numerical calculations and recent observations and plot a path forward for near-future advances in both domains.
Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Candidate young stellar objects in the S-cluster: Kinematic analysis of a sub...
Context. The observation of several L-band emission sources in the S cluster has led to a rich discussion of their nature. However, a definitive answer to the classification of the dusty objects requires an explanation for the detection of compact Doppler-shifted Brγ emission. The ionized hydrogen in combination with the observation of mid-infrared L-band continuum emission suggests that most of these sources are embedded in a dusty envelope. These embedded sources are part of the S-cluster, and their relationship to the S-stars is still under debate. To date, the question of the origin of these two populations has been vague, although all explanations favor migration processes for the individual cluster members. Aims. This work revisits the S-cluster and its dusty members orbiting the supermassive black hole SgrA* on bound Keplerian orbits from a kinematic perspective. The aim is to explore the Keplerian parameters for patterns that might imply a nonrandom distribution of the sample. Additionally, various analytical aspects are considered to address the nature of the dusty sources. Methods. Based on the photometric analysis, we estimated the individual H−K and K−L colors for the source sample and compared the results to known cluster members. The classification revealed a noticeable contrast between the S-stars and the dusty sources. To fit the flux-density distribution, we utilized the radiative transfer code HYPERION and implemented a young stellar object Class I model. We obtained the position angle from the Keplerian fit results; additionally, we analyzed the distribution of the inclinations and the longitudes of the ascending node. Results. The colors of the dusty sources suggest a stellar nature consistent with the spectral energy distribution in the near and midinfrared domains. Furthermore, the evaporation timescales of dusty and gaseous clumps in the vicinity of SgrA* are much shorter ( 2yr) than the epochs covered by the observations (≈15yr). In addition to the strong evidence for the stellar classification of the D-sources, we also find a clear disk-like pattern following the arrangements of S-stars proposed in the literature. Furthermore, we find a global intrinsic inclination for all dusty sources of 60 ± 20◦, implying a common formation process. Conclusions. The pattern of the dusty sources manifested in the distribution of the position angles, inclinations, and longitudes of the ascending node strongly suggests two different scenarios: the main-sequence stars and the dusty stellar S-cluster sources share a common formation history or migrated with a similar formation channel in the vicinity of SgrA*. Alternatively, the gravitational influence of SgrA* in combination with a massive perturber, such as a putative intermediate mass black hole in the IRS 13 cluster, forces the dusty objects and S-stars to follow a particular orbital arrangement. Key words. stars: black holes– stars: formation– Galaxy: center– galaxies: star formation
Sexuality - Issues, Attitude and Behaviour - Applied Social Psychology - Psyc...
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Box jellyfish: I'm about 95 percent water and I can kill you
- 2. Created with Haiku Deck 2
- 3. Name: Box Jellyfish / Box Jelly DANGEROUSANIMAL Weight: 4.4 lbs (2 kg) Height: 10 feet-long (3m) Number of species: 50 Nickname: “Sea Wasp”;“Marine Stinger” 3 Origin: Australia, Pacific Ocean Distinctive signs: ❏ box-shaped ❏ about 15 tentacles of about 10 feet- long ❏ 24 eyes
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- 5. Video of process of stinging 5
- 6. 6 Source 1 Source 2
- 7. 7 Source
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- 9. Friends - Monica gets stung 10
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- 12. ● Jamie Seymour, toxinologist ● Paradox of jellyfish Some references 12 ● Nematocysts ● Pacific Cnidoria Research Lab ● Description of BJ
- 13. Our group of great students 13