Weightlessness
Aerospace Medicine
Wing
Aircraft
Astronauts
Aerodynamics of hovering flight in the long-eared bat Plecotus auritus. (1/1367)
Steady-state aerodynamic and momentum theories were used for calculations of the lift and drag coefficients of Plecotus auritus in hovering flight. The lift coefficient obtained varies between 3-1 and 6-4, and the drag coefficient between --5-0 and 10-5, for the possible assumptions regarding the effective angles of attack during the upstroke. This demonstrates that hovering flight in Plecotus auritus can not be explained by quasi-steady-state aerodynamics. Thus, non-steady-state aerodynamics must prevail. (+info)Temperature regulation and heat dissipation during flight in birds. (2/1367)
Core and skin temperature were measured by radiotelemetry in starlings (Sturnus vulgaris) during 30 min flights in a wind tunnel. Core temperature was independent of ambient temperature from 0 to 28 degrees C. The temporal mean of the monitored core temperature during flight was 42-7 degrees C in one bird and 44-0 degrees C in another. These temperatures are 2-4 degrees C higher than the resting temperature in starlings, and are among the highest steady-state temperatures observed in any animal. Skin temperature on the breast was within a few degrees of core temperature. In some locations skin temperature was higher at low ambient temperatures than at intermediate ambient temperatures. An analysis of the data shows that a high core temperature does not function as an aid to head dissipation. On the contrary, insulation is adjusted to maintain a high temperature, presumably because it is necessary for flight. The increase in skin temperature at low ambient temperatures is believed to be a result of a decrease in heat flow through the breast feathers brought about by feather adjustments, to compensate for an unavoidable increase in heat flow in unfeathered or poorly feathered parts of the body. (+info)Phase-dependent presynaptic modulation of mechanosensory signals in the locust flight system. (3/1367)
In the locust flight system, afferents of a wing hinge mechanoreceptor, the hindwing tegula, make monosynaptic excitatory connections with motoneurons of the elevator muscles. During flight motor activity, the excitatory postsynaptic potentials (EPSPs) produced by these connections changed in amplitude with the phase of the wingbeat cycle. The largest changes occurred around the phase where elevator motoneurons passed through their minimum membrane potential. This phase-dependent modulation was neither due to flight-related oscillations in motoneuron membrane potential nor to changes in motoneuron input resistance. This indicates that modulation of EPSP amplitude is mediated by presynaptic mechanisms that affect the efficacy of afferent synaptic input. Primary afferent depolarizations (PADs) were recorded in the terminal arborizations of tegula afferents, presynaptic to elevator motoneurons in the same hemiganglion. PADs were attributed to presynaptic inhibitory input because they reduced the input resistance of the afferents and were sensitive to the gamma-aminobutyric acid antagonist picrotoxin. PADs occurred either spontaneously or were elicited by spike activity in the tegula afferents. In summary, afferent signaling in the locust flight system appears to be under presynaptic control, a candidate mechanism of which is presynaptic inhibition. (+info)Assembly of thick filaments and myofibrils occurs in the absence of the myosin head. (4/1367)
We investigated the importance of the myosin head in thick filament formation and myofibrillogenesis by generating transgenic Drosophila lines expressing either an embryonic or an adult isoform of the myosin rod in their indirect flight muscles. The headless myosin molecules retain the regulatory light-chain binding site, the alpha-helical rod and the C-terminal tailpiece. Both isoforms of headless myosin co-assemble with endogenous full-length myosin in wild-type muscle cells. However, rod polypeptides interfere with muscle function and cause a flightless phenotype. Electron microscopy demonstrates that this results from an antimorphic effect upon myofibril assembly. Thick filaments assemble when the myosin rod is expressed in mutant indirect flight muscles where no full-length myosin heavy chain is produced. These filaments show the characteristic hollow cross-section observed in wild type. The headless thick filaments can assemble with thin filaments into hexagonally packed arrays resembling normal myofibrils. However, thick filament length as well as sarcomere length and myofibril shape are abnormal. Therefore, thick filament assembly and many aspects of myofibrillogenesis are independent of the myosin head and these processes are regulated by the myosin rod and tailpiece. However, interaction of the myosin head with other myofibrillar components is necessary for defining filament length and myofibril dimensions. (+info)The role of orientation flights on homing performance in honeybees. (5/1367)
Honeybees have long served as a model organism for investigating insect navigation. Bees, like many other nesting animals, primarily use learned visual features of the environment to guide their movement between the nest and foraging sites. Although much is known about the spatial information encoded in memory by experienced bees, the development of large-scale spatial memory in naive bees is not clearly understood. Past studies suggest that learning occurs during orientation flights taken before the start of foraging. We investigated what honeybees learn during their initial experience in a new landscape by examining the homing of bees displaced after a single orientation flight lasting only 5-10 min. Homing ability was assessed using vanishing bearings and homing speed. At release sites with a view of the landmarks immediately surrounding the hive, 'first-flight' bees, tested after their very first orientation flight, had faster homing rates than 'reorienting foragers', which had previous experience in a different site prior to their orientation flight in the test landscape. First-flight bees also had faster homing rates from these sites than did 'resident' bees with full experience of the terrain. At distant sites, resident bees returned to the hive more rapidly than reorienting or first-flight bees; however, in some cases, the reorienting bees were as successful as the resident bees. Vanishing bearings indicated that all three types of bees were oriented homewards when in the vicinity of landmarks near the hive. When bees were released out of sight of these landmarks, hence forcing them to rely on a route memory, the 'first-flight' bees were confused, the 'reorienting' bees chose the homeward direction except at the most distant site and the 'resident' bees were consistently oriented homewards. (+info)Mechanical versus physiological determinants of swimming speeds in diving Brunnich's guillemots. (6/1367)
For fast flapping flight of birds in air, the maximum power and efficiency of the muscles occur over a limited range of contraction speeds and loads. Thus, contraction frequency and work per stroke tend to stay constant for a given species. In birds such as auks (Alcidae) that fly both in air and under water, wingbeat frequencies in water are far lower than in air, and it is unclear to what extent contraction frequency and work per stroke are conserved. During descent, compression of air spaces dramatically lowers buoyant resistance, so that maintaining a constant contraction frequency and work per stroke should result in an increased swimming speed. However, increasing speed causes exponential increases in drag, thereby reducing mechanical versus muscle efficiency. To investigate these competing factors, we have developed a biomechanical model of diving by guillemots (Uria spp.). The model predicted swimming speeds if stroke rate and work per stroke stay constant despite changing buoyancy. We compared predicted speeds with those of a free-ranging Brunnich's guillemot (U. lomvia) fitted with a time/depth recorder. For descent, the model predicted that speed should gradually increase to an asymptote of 1.5-1.6 m s-1 at approximately 40 m depth. In contrast, the instrumented guillemot typically reached 1.5 m s-1 within 10 m of the water surface and maintained that speed throughout descent to 80 m. During ascent, the model predicted that guillemots should stroke steadily at 1.8 m s-1 below their depth of neutral buoyancy (62 m), should alternate stroking and gliding at low buoyancies from 62 to 15 m, and should ascend passively by buoyancy alone above 15 m depth. However, the instrumented guillemot typically ascended at 1.25 m s-1 when negatively buoyant, at approximately 1.5 m s-1 from 62 m to 25 m, and supplemented buoyancy with stroking above 25 m. Throughout direct descent, and during ascent at negative and low positive buoyancies (82-25 m), the guillemot maintained its speed within a narrow range that minimized the drag coefficient. In films, guillemots descending against high buoyancy at shallow depths increased their stroke frequency over that of horizontal swimming, which had a substantial glide phase. Model simulations also indicated that stroke duration, relative thrust on the downstroke versus the upstroke, and the duration of gliding can be varied to regulate swimming speed with little change in contraction speed or work per stroke. These results, and the potential use of heat from inefficient muscles for thermoregulation, suggest that diving guillemots can optimize their mechanical efficiency (drag) with little change in net physiological efficiency. (+info)Wing rotation and the aerodynamic basis of insect flight. (7/1367)
The enhanced aerodynamic performance of insects results from an interaction of three distinct yet interactive mechanisms: delayed stall, rotational circulation, and wake capture. Delayed stall functions during the translational portions of the stroke, when the wings sweep through the air with a large angle of attack. In contrast, rotational circulation and wake capture generate aerodynamic forces during stroke reversals, when the wings rapidly rotate and change direction. In addition to contributing to the lift required to keep an insect aloft, these two rotational mechanisms provide a potent means by which the animal can modulate the direction and magnitude of flight forces during steering maneuvers. A comprehensive theory incorporating both translational and rotational mechanisms may explain the diverse patterns of wing motion displayed by different species of insects. (+info)Flight speed and body mass of nectar-feeding bats (Glossophaginae) during foraging. (8/1367)
Aerodynamic theory predicts that minimum power (Vmp) and maximum range (Vmr) flight speeds increase when the body mass of an individual animal increases. To evaluate whether foraging bats regulate their flight speed within a fixed speed category relative to Vmp or Vmr, I investigated how the natural daily changes in body mass caused by feeding affected the flight speed of neotropical nectar-feeding bats (Phyllostomidae: Glossophaginae) within a strictly defined, stereotyped behavioural context. Individual bats were maintained in a flight tunnel (lengths of five different types 14-50 m) with a fully automated feeding, weighing (using an electronic balance at the roost) and flight speed measuring system. Flight speeds were measured during normal nocturnal foraging activity by an undisturbed bat while it flew between the two ends of the flight tunnel to obtain food from two computer-controlled nectar-feeders. For a comparison of flight enclosure measurements with field data, flight speeds were also obtained from unrestrained bats foraging in their natural environment (Costa Rica). Foraging flight speeds spanned a range of at least a factor 3 within a single species, which demonstrates the wide range of speeds possible to these animals. Significant, positive correlations between flight speed and the natural individual variability in body mass were found in nearly all cases, with body mass exponents ranging between 0.44 and 2.1. Bats flying at normal speeds were therefore not near their upper limit of muscle power. The most reliable measurements of speed increase with mass (with individual mass changes of up to 30%) were close to the increase theoretically predicted for Vmp and Vmr for an individual bat (with constant wing span and area), which should vary as M0.42, where M is mass. This provides evidence that the glossophagine bats attemped to maintain their flight speed within a fixed speed category relative to Vmp or Vmr during foraging. Among differently sized species of glossophagine bat (N=4), flight speeds V varied with V=20M0.23, in agreement with the mass exponent of 0.21 expected from aerodynamic models for interspecific variation. In addition to the mass effect, at least five other variables significantly influenced flight speed. (1) Both mean and maximum flight speeds increased with the length and the cross-sectional area of the flight tunnel. Mean (maximum) flight speeds of 11-12 g Glossophaga soricina bats (in m s-1) were 4.6 (5.3) over a 7 m and 7. 3 (10.5) over a 50 m flight path. (2) The flight speed range adopted by a bat during one night could vary significantly between nights, independently of body mass and the effect of the size of the flight enclosure. (3) Bats flew significantly faster under illumination than in darkness. This effect was shown (i) by bats kept under natural ambient illumination that initiated foraging during the twilight phase of the evening, (ii) when bats continued to feed into the light phase directly after the dark-light transition in the laboratory and (iii) during foraging under constant, artificial illumination. (4) After a period of rest, the initial flight speed during a foraging bout was significantly increased by 25%, but declined to the mean level within 20 s of activity. (5) Flight speed could differ significantly between foraging (flight from feeder to feeder) versus non-foraging (flight from end to end of the enclosure without visiting the feeders) flights. The results of this study demonstrate a clear ability of bats to regulate their flight speed in response to small natural changes in body mass as predicted by aerodynamic theory for Vmp and Vmr. The set point in flight speed regulation, however, was influenced by multiple additional variables. (+info)"Space flight" is not a term that has a specific medical definition. However, in general, it refers to the act of traveling through space, outside of Earth's atmosphere, aboard a spacecraft. This can include trips to the International Space Station (ISS), lunar missions, or travel to other planets and moons within our solar system.
From a medical perspective, space flight presents unique challenges to the human body, including exposure to microgravity, radiation, and isolation from Earth's biosphere. These factors can have significant impacts on various physiological systems, including the cardiovascular, musculoskeletal, sensory, and immune systems. As a result, space medicine has emerged as a distinct field of study focused on understanding and mitigating these risks to ensure the health and safety of astronauts during space flight.
Weightlessness, also known as zero gravity or microgravity, is a condition in which people or objects appear to be weightless. The effects of weightlessness on the human body are similar to those experienced during freefall.
This state can be achieved in various ways:
1. Freefall: This is the natural weightless state that occurs when an object is in free fall and accelerating towards the center of a celestial body such as Earth, but is not being affected by any other forces (like air resistance). During this state, the only force acting upon the object is gravity, which pulls everything towards the center of the planet. This is why astronauts experience weightlessness during space travel.
2. Neutral Buoyancy: In a fluid medium like water, an object can achieve neutral buoyancy when its weight equals the weight of the fluid it displaces. This creates a state where the object neither sinks nor floats, appearing to be weightless.
3. Specialized Equipment: Devices such as aircraft that fly in parabolic arcs can create short periods of weightlessness for training purposes or research. These flights involve climbing steeply, then diving towards the earth, creating a state of freefall and thus weightlessness.
Prolonged exposure to weightlessness can have significant effects on the human body, including muscle atrophy, bone loss, balance disorders, and changes in cardiovascular function.
"Animal Flight" is not a medical term per se, but it is a concept that is studied in the field of comparative physiology and biomechanics, which are disciplines related to medicine. Animal flight refers to the ability of certain animal species to move through the air by flapping their wings or other appendages. This mode of locomotion is most commonly associated with birds, bats, and insects, but some mammals such as flying squirrels and sugar gliders are also capable of gliding through the air.
The study of animal flight involves understanding the biomechanics of how animals generate lift and propulsion, as well as the physiological adaptations that allow them to sustain flight. For example, birds have lightweight skeletons and powerful chest muscles that enable them to flap their wings rapidly and generate lift. Bats, on the other hand, use a more complex system of membranes and joints to manipulate their wings and achieve maneuverability in flight.
Understanding animal flight has important implications for the design of aircraft and other engineering systems, as well as for our broader understanding of how animals have evolved to adapt to their environments.
Aerospace medicine is a branch of medicine that deals with the health and safety of pilots, astronauts, and passengers during space travel or aircraft flight. It involves studying the effects of various factors such as altitude, weightlessness, radiation, noise, vibration, and temperature extremes on the human body, and developing measures to prevent or mitigate any adverse effects.
Aerospace medicine also encompasses the diagnosis and treatment of medical conditions that occur during space travel or aircraft flight, as well as the development of medical standards and guidelines for pilot and astronaut selection, training, and fitness for duty. Additionally, it includes research into the physiological and psychological challenges of long-duration space missions and the development of countermeasures to maintain crew health and performance during such missions.
In medical terms, "wing" is not a term that is used as a standalone definition. However, it can be found in the context of certain anatomical structures or medical conditions. For instance, the "wings" of the lungs refer to the upper and lower portions of the lungs that extend from the main body of the organ. Similarly, in dermatology, "winging" is used to describe the spreading out or flaring of the wings of the nose, which can be a characteristic feature of certain skin conditions like lupus.
It's important to note that medical terminology can be highly specific and context-dependent, so it's always best to consult with a healthcare professional for accurate information related to medical definitions or diagnoses.
An "aircraft" is not a medical term, but rather a general term used to describe any vehicle or machine designed to be powered and operated in the air. This includes fixed-wing aircraft such as airplanes and gliders, as well as rotary-wing aircraft such as helicopters and autogyros.
However, there are some medical conditions that can affect a person's ability to safely operate an aircraft, such as certain cardiovascular or neurological disorders. In these cases, the individual may be required to undergo medical evaluation and obtain clearance from aviation medical examiners before they are allowed to fly.
Additionally, there are some medical devices and equipment that are used in aircraft, such as oxygen systems and medical evacuation equipment. These may be used to provide medical care to passengers or crew members during flight.
An astronaut is a professional who is trained and competent to travel in space outside of the Earth's atmosphere. The term "astronaut" is commonly used to refer to individuals from the United States, while the terms "cosmonaut" and "taikonaut" are used for those from Russia and China, respectively.
Astronauts undergo rigorous training and physical examinations to ensure they are in good health and can handle the demanding conditions of space travel. They may perform various tasks during their missions, including scientific research, operating equipment, maintaining the spacecraft, and communicating with mission control on Earth.
The first human astronaut was Yuri Gagarin, a Russian cosmonaut who became the first person to orbit the Earth in 1961. Since then, thousands of people from various countries have become astronauts and have contributed to our understanding of space and the universe.
The branch of transportation concerned with flying aircraft, including the design, development, production, and operation of airplanes, helicopters, and other flying machines. In a medical context, aviation may refer to the study of the effects of flight on the human body, particularly in relation to pilot health and safety, or to the medical aspects of aviation, such as aeromedical evacuation and transportation of patients by air.
In medical terms, "wind" is not a widely used or recognized term. It might be used informally to describe symptoms such as abdominal bloating, rumbling, or the sensation of gas moving within the intestines. However, these sensations are more accurately described as related to bowel function and gas in the digestive tract. If you're experiencing persistent or severe symptoms that you're describing as "wind," it would be best to consult with a healthcare professional for a proper evaluation.
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The Latest: Colombia ban flights from Brazil due to variant - McKinnon Broadcasting
Disney's Animal1
- According to numerous reports on social media, it appears that the Flight of Passage attraction at Pandora - The World of AVATAR in Disney's Animal Kingdom has been fully evacuated and is currently experiencing downtime. (coaster-net.com)
Attendant11
- NEW YORK -- A woman who claims her family was escorted off a JetBlue flight on Tuesday says a flight attendant 'antagonized' her family prior to the confrontations that she says led all nine family members to being detained, ABC News reports . (abc7chicago.com)
- Kimchy said the flight attendant had referred to her family as 'animals' over the loud speaker. (abc7chicago.com)
- BOSTON (AP) - A man charged with attacking a flight attendant and attempting to open an airliner's emergency door on a cross-country flight over the weekend remained in custody Thursday after a federal court ordered him to undergo a mental health evaluation. (woodtv.com)
- One flight attendant noticed the door's locking handle had been moved. (woodtv.com)
- Lisa Olsen, who was sitting a few rows in front of Torres with her husband and daughter, recalled how he grew defensive when confronted by a flight attendant about the door. (woodtv.com)
- After the flight attendant left him, Torres started loudly rambling that his father was Dracula, which prompted a male and female passengers to try and calm him down. (woodtv.com)
- Jodi Harskamp, an Alaska Airlines pilot, insisted on seeing if she was a match after flight attendant Jenny Stansel was diagnosed with a kidney disease. (insideedition.com)
- A captain is expected to take care of her crew, which is why this Alaska Airlines pilot decided to donate her kidney to a flight attendant undergoing a turbulent battle against kidney disease. (insideedition.com)
- Alaska Airlines flight attendant Jenny Stansel, 38, has been battling chronic kidney disease for more than 15 years. (insideedition.com)
- Ever the world traveler and aviation enthusiast, Barbie also worked as a flight attendant and a pilot. (cdc.gov)
- A 26-year-old female airline flight attendant exposed to lime while serving drinks en route to the Caribbean. (medscape.com)
Lund University2
- By measuring the performance of the wing in our wind tunnel, we have studied how different ways of achieving the wing upstroke affect force and energy in flight", says Christoffer Johansson, biology researcher at Lund University. (lu.se)
- The sound recordings of butterfly wings were recorded in Lund in collaboration with Associate Professor Per Henningsson at Animal Flight Lab, Lund University. (lu.se)
Avatar Flight of Passage2
- Avatar Flight of Passage will transport you on a sweeping, simulated flight over Pandora's colorful landscape. (wdwinfo.com)
- In Avatar Flight of Passage guests are invited to the world of Pandora, featured in the Avatar film. (darkridedatabase.com)
Passengers12
- The open-air flight literally puts passengers in touch with nature when the basket skirts the crowns of ponderosa pines, skims over a rolling river, or lightly touches the rippling surface of a lake. (nationalgeographic.com)
- Passengers await their flights at Pudong International Airport in Shanghai in July. (latimes.com)
- The Delta flight that turned back to Seattle last week left passengers with expired COVID-19 test results and U.S. visas, according to Chinese media reports. (latimes.com)
- United Airlines requires its passengers to comply with the Transportation and Security Administration's rule for carry-on bags on international flights. (usatoday.com)
- United passengers for flights originating in Canada are forbidden to carry on any sort of protective spray, such as pepper spray. (usatoday.com)
- For example, for a flight originating in Atlanta, Georgia, and going to to Kiev, Ukraine, passengers may check one bag free of charge, but pay $100 for each additional bag. (usatoday.com)
- For example, passengers traveling from Russia who desire a kosher meal need to notify the airline 48 hours before the flight. (usatoday.com)
- Singapore Airlines (SIA) has stopped serving peanuts as snacks to passengers on its flights, the carrier said. (yahoo.com)
- In an incident on a Southwest Airlines flight that occurred in March this year, a nine-year-old boy from Texas suffered a reaction after peanuts were served to passengers. (yahoo.com)
- On a flight last night in Orlando, headed to Cleveland, all passengers had to deplane before takeoff because a woman brought on board - an emotional support animal - however, she didn't tell anyone that it was a squirrel! (iheart.com)
- CDC has disease-specific instructions (protocols) to identify passengers who may have been exposed during a flight. (cdc.gov)
- Are you aware of any condition or possible source of contamination or infection on board that may lead to the spread of disease (for example, other ill or dead passengers, food and water quality, cabin environment, baggage, ill animals, etc. (who.int)
Airlines14
- Two Taiwan-based airlines, China Airlines and EVA Air, have both cut down on the number of flights heading to Pudong International Airport in recent days, citing new disinfection procedures that will take longer to complete, according to Taiwan's semi-official Central News Agency. (latimes.com)
- Airlines canceled hundreds of flights Saturday as staffing issues disrupted holiday celebrations during one of the busiest travel times of the year. (latimes.com)
- China Airlines is suspending flights from one city to Shanghai until the end of January, and reducing the number of flights on another route. (latimes.com)
- Beijing: China Southern Airlines Co. cancelled two scheduled flights that would have used Boeing Co.'s 737 Max, further postponing the return of the aircraft in the country since it was grounded in March 2019. (gulfnews.com)
- Additional regulations may apply if you fly on airlines other than Condor, e.g. if feeder or connecting flights are operated by other airlines . (condor.com)
- Most vets do not recommend sedating your pet prior to travel and airlines may not accept a sedated animal. (flightcentre.com.au)
- TAMPA, Fla. ( WFLA ) - A pilot with LATAM Airlines pilot died Monday after suffering a medical emergency during a flight from Florida to Chile, according to the airline. (wkrg.com)
- While United's rules and regulations for international flights are similar to that of other major airlines, if you plan to fly United in the future, it's worth familiarizing yourself with its particular policies. (usatoday.com)
- United Airlines does not accept unaccompanied minors under 5 years of age for any flight. (usatoday.com)
- Airlines such as Qantas Airways, Air New Zealand and British Airways have already banned peanuts from all their flights. (yahoo.com)
- Bidany was named last month in a misdemeanor information charging him with molesting the woman on a March 27 Delta Airlines flight bound for John F. Kennedy International Airport. (thesmokinggun.com)
- Of the 14 flights, two were Lufthansa, six were Southwest Airlines and another six were United. (abc4.com)
- Airlines tried to stop fake service animals. (boston.com)
- NEXSTAR) - United Airlines flights were briefly stuck on the tarmac Tuesday due to a "systemwide technology issue," the company said on social media. (ktsm.com)
Bats6
- Birds, bats and insects are some of the animals we study there. (lu.se)
- We hypothesize that flight, a factor common to all bats but to no other mammals, provides an intensive selective force for coexistence with viral parasites through a daily cycle that elevates metabolism and body temperature analogous to the febrile response in other mammals. (cdc.gov)
- However, low virulence coupled with high diversity has led to the suggestion that bats might have evolved mechanisms to control viral replication more effectively than have most other mammals ( 10 , 13 ) and that some attribute common to all bats (a very widely distributed and diverse group) also might explain the apparent low virulence of viral infections in these animals ( 1 , 2 ). (cdc.gov)
- We hypothesize that the increased metabolism and higher body temperatures of bats during flight might serve as an evolutionary adjuvant to their immune systems, providing a powerful selective force against virulence and promoting the diversity of viruses that infect bat populations. (cdc.gov)
- Low virulence coupled with high diversity has led to the suggestion that bats have evolved mechanisms to control viral replication more effectively than have most mammals and that some attribute common to all bats might also explain the apparent low virulence of viral infections in these animals. (cdc.gov)
- During flight, bats exhibit a high increase in metabolic rate over the resting metabolic rate of normeothermic, otherwise active bats. (cdc.gov)
Birds6
- With sights set on unlocking the secrets of birds' smooth sailing, researchers at Stanford University have developed a new method for recording the shape of birds' wings during flight. (stanford.edu)
- We study how birds and other animals have adapted to migrate and navigate across long distances. (lu.se)
- Even the precursors to birds - extinct bird-like dinosaurs - benefited from folding their wings during the upstroke, as they developed active flight. (lu.se)
- Among flying animals alive today, birds are the largest and most efficient. (lu.se)
- The new robotic wing can be used to answer questions about bird flight that would be impossible simply by observing flying birds. (lu.se)
- Research into the flight ability of living birds is limited to the flapping movement that the bird actually uses", explains Christoffer Johansson. (lu.se)
Cruelty2
- Seeking to right a wrong and improve the life of this helpless bird after half of his beak was torn from his face, animal rescuers and veterinarians enlist a team of volunteer experts tasked with replacing Grecia's beak as Costa Ricans rally to implement penalties for animal cruelty. (rapidtvnews.com)
- Motivated by the notion that every life-- whether animal or human - is inherently valuable and must be protected, school children and a committed group of animal rights activists wage a battle to highlight animal cruelty in their country and transform the penal code. (rapidtvnews.com)
Cabin2
- Cabin pressure during flight prevents airplane doors from opening. (woodtv.com)
- The cabin crew do not access the hold during the flight, but the ground staff will ensure your pet is securely loaded on board and are unloaded as soon as possible after landing. (flightcentre.com.au)
Shelters3
- We are excited to announce that 145 shelter dogs, cats and kittens took flight on Thursday during a large-scale animal transport, and will now be available for adoption at partner shelters in Oregon and Washington state. (aspca.org)
- The ASPCA teamed up with the County of Los Angeles Department of Animal Care and Control, along with Wings of Rescue, to transport these animals from LA County shelters by plane in the hopes of giving them a second chance to find loving homes. (aspca.org)
- Since the ASPCA launched its multi-year, $25 million LA initiative in June 2014 , our Animal Relocation team has transported more than 2,000 pets from overcrowded LA County shelters to shelters and rescue groups in other areas of the country where the demand for adoptable pets is high. (aspca.org)
Passage1
- Flight of Passage is a next step in the development of the flying theater. (darkridedatabase.com)
Biotelemetry1
- Animal Biotelemetry. (lu.se)
20162
- Another Australian woman experienced a similar allergic reaction on an SIA flight in 2016 due to " peanut fumes " on the plane. (yahoo.com)
- December 22, 2016 - An outbreak of avian lineage influenza A H7N2 ("H7N2") virus infection among cats in an animal shelter in New York City was first reported on December 9, 2016. (cdc.gov)
World's2
- The world's first Starlight Tourism Destination, Portugal's Alqueva region offers round-the-clock adventure - from dawn flights by hot air balloon to a kayaking tour under a dazzling night sky. (nationalgeographic.com)
- in fact, some of the world's most widespread animal migrations take place among very small animals, for example the huge daily migrations of zooplankton in oceans and lakes. (lu.se)
Baggage1
- If your furry friend is accepted as cargo or checked baggage, they will be travelling securely in the aircraft hold - a climate controlled space perfectly safe for animals. (flightcentre.com.au)
Travelling1
- For domestic and short-haul journeys, plastic and steel mesh containers are the norm within Australia, while metal or wooden crates may be more suitable for animals such as large dogs if they are travelling long-haul. (flightcentre.com.au)
Wings1
- High-speed cameras allow us to film the movements of the wings, tail and body of the animal simultaneously as we make our aerodynamic measurements. (lu.se)
Search1
- However, flight distance is a much easier and more practical parameter to deal with than duration and therefore it makes sense to search for a link between these two parameters. (nature.com)
Passenger3
- China's largest airline originally planned to deploy the Max from Sunday on at least one daily round trip on both routes, marking the model's first commercial passenger flight in China since the grounding. (gulfnews.com)
- MAY 5--An Israeli rabbi was convicted today of fondling a female passenger on a recent flight from Tel Aviv to New York. (thesmokinggun.com)
- transportation of animal is allowed provided the passenger assumes full responsibility for animal and arranges all necessary health and/or vaccination certificates, export, import or transit permits etc. required by the laws and rules of departure, transit and arrival countries. (flyuia.com)
Welfare8
- To date, however, there has been few quantitative methods available enabling assessment of the animal welfare outcomes of rifle hunting. (nature.com)
- Our model is a universally applicable tool for measuring animal welfare outcomes of shooting regimes both within and among species. (nature.com)
- For management agencies the model should be a practical tool for monitoring and evaluating animal welfare outcomes regarding shooting of mammalian populations. (nature.com)
- Ideally, shooting of mammals should cause "the least animal welfare harms to the least number of animals" 5 . (nature.com)
- This model enables us to define animal welfare outcomes for shooting and wounding of game mammals. (nature.com)
- Animal Planet Presents will premiere documentary Toucan Nation in August, telling the story of Grecia, the toucan in Costa Rica whose abuse sparked international outrage and inspired a national animal welfare campaign. (rapidtvnews.com)
- We are proud to present this moving story and hope it sparks a larger conversation about animal welfare. (rapidtvnews.com)
- Toucan Nation showcases both the children and the activists as they create a petition for Costa Rica's president Luis Guillermo SolĂs to bring the Animal Welfare bill in front of Congress. (rapidtvnews.com)
Wind tunnel3
Increases1
- Increases when an animal is excited or approached from the front. (cdc.gov)
Incident1
- She then reported the incident to Delta flight crew members, who later told FBI agents that the woman was "visibly shaken and frantic. (thesmokinggun.com)
Banshee3
- You will experience the swift and graceful movements of flight and even feel the banshee breathing beneath you! (wdwinfo.com)
- Following the story of the film, the human riders are linked to an avatar which enables them to fly on a Banshee, a large dragon-like animal. (darkridedatabase.com)
- These seats generate motion as if the rider is sitting on the back of animal, enhancing the experience of flying on a Banshee. (darkridedatabase.com)
Delta2
- Delta Air Lines said Monday that new pandemic-related cleaning requirements at a Shanghai airport were behind the turning back in midair of a recent flight from Seattle, a move that prompted a protest from the Chinese Consulate in San Francisco. (latimes.com)
- The Chinese Consulate in San Francisco did not name Delta but said in a short statement Sunday that many flights from the U.S. to China had been delayed or canceled in recent days, including a flight that turned back more than halfway to its destination. (latimes.com)
Meals2
- United offers special meals on select flights in select markets, and often requires advance notice of your dietary needs. (usatoday.com)
- SIA said, however, that nut products would still be served in in-flight meals. (yahoo.com)
Restrictions2
- Check with United before packing to determine fees, size and weight restrictions for your flight. (usatoday.com)
- prior the completion of the online form below, please get acquainted with restrictions on transportation of animals imposed by some countries following the link "RESTRICTIONS ON THE TRANSPORTATION OF ANIMALS" . (flyuia.com)
Preparation1
- Your next stop is the genetic matching room where you'll be scanned and genetic material is sampled to connect you to personal avatars in preparation for the flight experience. (wdwinfo.com)
Shanghai2
- EVA is suspending flights from two cities to Shanghai until Feb. 3. (latimes.com)
- Someone on a flight of the same origin but going to Shanghai, on the other hand, pays $70 for the second checked bag. (usatoday.com)
Potentially2
Lands2
Time4
- This approach provides for the first time a method for quantifying and grading the quality of shooting processes by examining only body mass and flight distance. (nature.com)
- In this paper we describe a model based on body mass as a determinant of the time to incapacitation and the flight distance after an animal is struck by a bullet. (nature.com)
- taxes and charges when booking a return flight at the same time. (condor.com)
- Two full-time technicians help biology researchers to realise new ingenious ways of gathering data on how animals move. (lu.se)
World1
- This is a list of the fastest animals in the world, by types of animal. (wikipedia.org)
Aviation1
- Flights were allowed to resume taking off around 12:50 p.m., the Federal Aviation Administration said on X , the social media platform formally known as Twitter. (ktsm.com)
Immune2
- found that flight evolved in tandem with concomitant genetic changes to their innate immune systems. (cdc.gov)
- When a bat is confronted by a viral antigen, the proportional increase in metabolism for raising an immune response may be trivial compared to the very large increase in the metabolic costs of flight. (cdc.gov)
Anxiety1
- When someone is faced with a dangerous situation, anxiety triggers the fight-or-flight response. (msdmanuals.com)
International flights1
- It offers both domestic and international flights, and operates hubs in 10 major cities. (usatoday.com)
Rely2
- Current techniques for recording animals in motion often rely on tracking markers attached to the animal or features of the animal like stripes or spots, an approach that can't directly or automatically reconstruct an entire wing surface at high resolution. (stanford.edu)
- The flight system does not always need to rely on rotors and lots of startups have tried to expand the definition. (designlisticle.com)
Airline1
- Flight LA505, from Miami to Santiago, was diverted to Tocumen International Airport in Panama City, Panama, after one of the Boeing 787's three pilots became ill, according to the airline. (wkrg.com)
Back1
- If you have any query regarding NCERT Solutions for Class 10 English First Flight Poem Chapter 7 Animals drop a comment below and we will get back to you at the earliest. (mentorway.in)
AGES1
- those ages 8 to 11 are allowed on connecting flights, but not when the connection would require an overnight stay. (usatoday.com)
Large2
Bird4
- What happened to this beautiful bird was horrific," says John Hoffman, EVP, documentaries and specials for Discovery Channel, Animal Planet and Science Channel. (rapidtvnews.com)
- Researchers in the Lentink lab developed a new way to record wing shape during bird flight in 3D. (stanford.edu)
- Other methods, which use patterned light, are more easily automated but are too slow to record bird flight. (stanford.edu)
- The peregrine falcon is the fastest bird, and the fastest member of the animal kingdom, with a diving speed of over 300 km/h (190 mph). (wikipedia.org)
Check3
- File - Pilots conduct a pre-flight check in the cockpit of a jet before taking off from Dallas Fort Worth airport in Grapevine, Texas, on Dec. 2, 2020. (wboy.com)
- Check with your Flight Centre consultant to find out where you can collect your four-legged traveller after their sky-high journey. (flightcentre.com.au)
- If you require in-flight oxygen, check with United before booking your flight. (usatoday.com)
Hint1
- Safety always comes first, so Rees will scrub flights or land early at any hint of danger. (nationalgeographic.com)
City3
- A total of 14 flights have been diverted to Salt Lake City, according to Volmer. (abc4.com)
- CDC has confirmed one associated human infection in a person who had close, prolonged unprotected exposure to the respiratory secretions of infected, sick cats at an affected New York City animal shelter. (cdc.gov)
- CDC is in close communication with human and animal health partners regarding this situation, providing situation-specific guidance related to testing, clinical management, antiviral treatment and chemoprophylaxis, and infection control to support the on-the-ground response, which is being led by public health and animal health experts in New York City. (cdc.gov)
Made2
- Francisco Severo Torres, 33, of Leominster, Massachusetts was arrested Sunday when United Flight 2609 from Los Angeles landed in Boston, and made his first court appearance for a bail hearing. (woodtv.com)
- BAKERSFIELD, Calif. (KGET) - Honor Flight 48 - a Native American veteran flight - made its arrival in Washington D.C. on Wednesday. (kget.com)
Research1
- Our research is primary focused on the ecology and evolution of animal flight. (lu.se)
Space3
- Most people likely don't know that a massive space flight company, besides SpaceX, is based in Central Texas. (kxan.com)
- Of course, the mission wouldn't be possible without the contributions from NASA scientists at Marshall Space Flight Center. (whnt.com)
- Brad Zavodsky is a Mission Manager for the Psyche Mission at Marshall Space Flight Center. (whnt.com)
Distance2
- We apply a variety of factors to model flight distance (distance travelled by an animal after bullet impact) and incapacitation from the moment of bullet impact. (nature.com)
- Rees' specialty is long-distance, high-altitude flights over mountain ranges-not common fare in Montana. (nationalgeographic.com)
Domestic2
Year1
- As she initially told FBI agents , the molestation victim, a 23-year-old Israeli Army officer, testified yesterday that Bidany twice fondled her on the trans-Atlantic flight. (thesmokinggun.com)
Body2
- When drawing comparisons between different classes of animals, an alternative unit is sometimes used for organisms: body length per second. (wikipedia.org)
- With this response, a variety of physical changes, such as increased blood flow to the heart and muscles, provide the body with the necessary energy and strength to deal with life-threatening situations, such as running from an aggressive animal or fighting off an attacker. (msdmanuals.com)