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**306.043 resultados para test em vídeos**

TV colour bars test card screen. SMPTE Television Color Test Calibration Bars. Test card. SMPTE color bars. Graphic for footage video and 1Khz Sine Wave

00:28

Retro television broadcast test pattern featuring vibrant vertical color bars and a grayscale static section, indicating signal loss or display calibration

00:05

Pipette with liquid inside drop water in test tubes. Close up macro.

00:14

Retro Analog TV Glitch Background. Distorted No Signal Screen Error, White Noise Static, Flickering Color Bars Test Pattern Animation 4k video animation seamless loop

00:10

over shoulder doctor writing on a form for a blood test

00:18

Close-up of the Row of Students Writing in the Notebooks, Taking Exam. Focus of Hands with Pens. Shot on RED EPIC-W 8K Helium Cinema Camera.

00:12

Lab assistant makes urgent blood test for detection of antibodies and infections

00:29

Woman face, blue eyes and vision focus, thinking idea and contact lenses to see, eyesight and awareness. Closeup macro on face, eyeball and optometry test stare with awake perception of human anatomy

00:11

A scientist in his laboratory holds a test tube containing DNA and is able to control the evolution of man thanks to holography. Concept of: DNA, technology, augmented reality.

00:14

Retro TV test pattern please stand by screen suitable for showcasing broadcast standby or vintage television interruptions in presentations, videos, or graphics related to media and technology

00:20

Scientist in blue gloves holds rack of blue liquid filled test tubes amidst vapor

00:08

Drop chemical fluid into laboratory test tube , science biological or chemistry research concept

00:16

Vintage “Please Stand By” test card with radial calibration pattern, sepia tone, and film dust texture

00:20

hand with pencil taking a multiple choice test

00:18

Blood test taking of a young patient man of a young woman doctor in a modern clinic room , assistant are behind of the doctor.

00:24

Lab assistant in gloves putting blood test tubes in rack or holder close up

00:10

An abstract television test pattern displays vibrant color bars with digital glitches and static noise.

00:15

Retro analog television test pattern with color bars and please stand by text featuring static noise.

00:10

Analog capture (intentional heavy distortion fx): a tv test pattern (also called cinescope) made of blocks and shapes of varying dimensions.

00:12

Doctor hand taking a blood sample tube from a rack with machines of analysis in the lab background, Technician holding blood tube test in the research laboratory.

00:17

Inserting the test sample in the sample container into the pre paid envelope ready for sending to the Bowel Cancer Screening Programme for testing.

00:25

Classic television test pattern with 'SIGNAL LOST' message, showing broadcast interruption

00:05

Scientist in lab coat and blue gloves carefully dropping liquid into test tube with pipette with research and experiment and science and medical

00:08

Close-up of the process of taking blood from the vein from man for biochemical blood testing. Preparation for blood test with by phlebotomist technician doctor in medical clinic.

00:56

4K CRT glitch signal diagnostic screen animation, horizontal RGB scanlines and numeric line readouts, analog test interface with heavy noise, chromatic distortion and interference, broken broadcast

00:11

Waist up slowmo of group of multiethnic college students sitting one by one at desk in classroom writing test

00:28

Walking, exam and students talking about results on university campus and share test information or paperwork together. Scholarship, education and group of young people or friends in discussion

00:08

Muscular athlete with mask running on treadmill in gym for monitoring his performance. Sportsman in sports science lab measuring his performance cardio respiratory test professional athlete

00:25

Generic 3d car crash test with crashtest dummy. Car destruction. Realistic 4k animation.

00:10

Female scientist wearing blue protective gloves collecting a water sample from a stream in a test tube to measure pollution levels and water quality, an important part of environmental analysis

00:06

Please stand by screen display featuring a tv test pattern with please stand by message. Suitable for indicating waiting times in presentations. 4k looping

00:10

A beautiful woman takes a pregnancy test and as soon as she reads that she is pregnant, she explodes in a moment of happiness and joy for the future birth of her child. Concept of: birth, life, family

00:12

scientist hand putting test tubes ampoules bottles in pcr machine Spbas. dna test, molecular biology technology. concept examining, diagnostics, pharmaceutical laboratory

00:17

Conceptual 4K video of a doctor holding and looking at a test tube while testing samples for presence of coronavirus (COVID-19).

00:10

automatic hematology analyzer with glass test tubes with blood

00:12

Process of express fast coronavirus covid Antigen AG PCR testing examination at home, COVID-19 swab collection kit, test tube for taking OP NP patient specimen sample, testing carried out

00:06

Doctor in medical PPE suit holds a covid antigen test of care testing. Lab performing rapid diagnostic test for antibodies to detect presence of antigens Coronavirus disease.

00:14

Airbag Deploys Closeup 2

00:29

Older male university student receives alert warning notification for violating academic integrity policies by using AI chatbot for assignment concept

00:26

Lab technician in blue gloves labeling urine sample test tube with barcode in modern medical laboratory for diagnostic analysis and research.

00:13

Scientists wearing lab coats and gloves are analyzing blood test tubes and taking notes in a laboratory

00:19

Senior woman, eyes and focus for eye exam, test or assessment of vision, eyesight and optometry for elderly patient. Eye, closeup and old lady thinking with wrinkles, natural skin and wellness

00:05

Close Up Tracking Of Woman Holding Positive Pregnancy Test In Public Bathroom

00:10

Evaluation or measurement concept. Student testing in exercise taking fill in exam at school or university in test room, writing document exams paper at campus classroom, education back to school idea

00:09

Blood samples in test tubes rotates in a centrifuge to separate blood from plasma for further analysis. Scientists biochemical laboratory manufacturing a vaccine against the covid-19 coronavirus.

00:10

TU, MS, Side View shot of the head and shoulders of a crash test dummy

00:18

Lab technician holding blood tube sample for study. Medical technologist dropping blood into test tube in hospital laboratory

00:10

Unrecognizable man walking on treadmill during cardiac stress test

00:14

Closeup, hands and a couple with pregnancy test results, comfort and reading together. Family, support and a man and woman with information on a baby, pregnant and care on the sofa for infertility

00:06

A person brings vision glasses to his eyes. Moving from out of focus to focus. View of the First person view on the vision test table.

00:06

Lab Research Test Tubes

00:08

The blood analysis. Analysis to identify the HIV virus.

00:13

Taking a blood sample for testing in the tube and putting it on the stand

00:12

Asian female virologist in protective suit, mask, glasses and gloves dripping blue liquid from pipette into test tubes while working on antiviral vaccine at desk with microscope on it in laboratory

00:23

Blood samples in a test-tube centrifuge. Lab environment. Looping animation 4KHD

00:10

doctor writing blood test results on the patients form

00:17

Technical Difficulties

00:05

Biologists are collaborating to examine impurities in water from natural wells.

00:14

Happy couple discover the pregnancy test in the restroom

00:15

Stunt driver performing car crash test safety experiment

00:05

Woman holding a pregnancy test in her hands. The result is positive.

00:12

Lab work, Doctor holds a test tube takes the test from a test tube in analysis, blood, DNA, test tube stand.

00:21

Young adult female doctor explaining medical test results or diagnosis to senior 70s couple, handing over prescription, discussing together insurance terms during home visit consultation. Health care

00:09

Please stand by screen with color bars pattern background with static noise

00:05

Completing blood draw.

00:20

Woman fingers pregnancy test making indoor closeup. Lady looking negative result Generative AI

00:09

Male engineer simulates and watches process of traffic accident using digital tablet with modern system to change the safety parameters. 3D animation of electric car experimental crash test in lab.

00:14

Hands holding pregnancy test, turning to show one line negative test, problem family planning.

00:10

Athlete Performs Cardiopulmonary Exercise Test on Treadmill Under Physician Supervision in a Modern Medical Lab, Monitoring Heart Rate and Respiratory Function for Sport Training and Health Research.

00:07

Please stand by test screen with countdown from 59 seconds, retro style.

01:00

Lab Research Test Tubes

00:06

sad girl sitting on the bathroom floor with a pregnancy test. the concept of a positive or negative pregnancy test or other problems related to the position and health of women

00:13

Please stand by tv test pattern retro vintage broadcast. 4k animation video

00:10

Selective focus shot of female scientist in protective mask and glasses pouring blue liquid in test tubes with pipette during microbiology experiment in laboratory

00:18

Smile, pregnancy test and happy couple with positive result excited for their family together. Happiness, joyful and pregnant woman celebrating with love and support from her husband with future baby

00:06

extreme closeup of test tube of blood taken for a blood test

00:21

close up view of Lab Worker hands Extracts blood from vein. a stream of blood flows into the test tube

00:09

4K Close up of pencil being used on a multiple choice test paper

00:33

Generic 3d car crash test with crashtest dummy. Car destruction. Realistic 4k animation.

00:10

Abnormal heart rhythm line showing an ekg style medical waveform animation

00:12

Closeup of microscope with lens and laboratory glass setup

00:14

Doctor hand taking a blood sample tube from a rack with machines of analysis in the lab background, Technician holding blood tube test in the research laboratory.

00:19

after the test, the doctor puts the blood tests in a pallet

00:06

Scantron Test Paper

00:16

Tv screen with Indian Head Test Pattern

00:14

Glass test tubes with liquid on white background.

00:12

Please Stand By - Retro Television Test Pattern with Static and Glitch Effect.

00:10

Test results, working mom Unexpectedly Reading a pregnancy test Sitting in the bathroom, Slow motion Pregnant woman Analyzing test strips Women's health centers, Test

00:08

4k stock| . Static color simple noise. Error video glitch. Bad damage interface. No signal stock animation. Video no signal test pattern on TV screen; colorful flickering.

00:10

Dynamic digital speed test interface displaying fluctuating download and upload speeds, showcasing real-time data metrics and vibrant graphical elements

00:10

16:9 TV color bar damage glitch distortion background, abstract noise effect. (4K UHD seamless looping, computer digitally generated animation.)

00:10

Thyroid hormone t3 and t4 molecules circulate blood vessels representing endocrine health with detailed blood test concept showing molecular structure and red blood cells supporting thyroid function

00:08

Scientist with gloves injecting liquid sample into a plastic gradient lab for test

00:09

Distorted Television bars signal. Error on the test signal

00:16

Optometry, eyesight and eye test for senior woman, optometrist and slit lamp. Doctor, specialist and healthcare professional for ophthalmology, prescription and optician for eyecare appointment exam

00:06

Laboratory technician writing notes on a clipboard while holding a test tube with blue liquid, with test tubes rack and microscope in background, in a medical research laboratory

00:15

Nurse puts a bar code on a test tube with a blood test

00:11

A confident mature woman scientist stands with arms crossed in a well-equipped laboratory, surrounded by scientific equipment.

00:09

Medical laboratory assistant taking test tube with liquids, test with urine, Scientist doctor looking at sample in test tube. Laboratory analysis.

00:16

Positive pregnancy test in the hands of a teenage girl.

00:19