Rear view of man against chalkboard with math formula equations. He think about solution and try to understand high university task.
Male doctor thinking in lab. Close up of lab doctor portrait. Portrait of scientist man in lab. Lab worker portrait. Thoughtful man scientist. Chemist thinking. Scientist thinking in laboratory
Confident proud smart man in his 30s or 40s pointing at himself acknowledging his achievement at a job well done solving a complex problem
Scientist pondering in science lab. Scientist in lab. Scientist observing lab equipment. Young scientist awaiting research outcomes.
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Serious computer scientist working in data center closeup. Pensive system administrator man holding ball creating ideas at late workplace
Pensive scientists thinking over bad results
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Serious chemist thinking on research cure wearing safety in lab close up. Thoughtful scientist looking test tube exploring medicines
Doctor or scientist thinks about a problem and finds a solution, close-up
Scientist at work in laboratory. Young researcher deep in thought. Portrait of lab worker in safety glasses. Chemist conducting experiments. Closeup of lab professional in white coat.
scientist reading and thinking about notes he has on a pad
cancer research scientist thinking about a solution
Scientist working with microscope and thinking about the following steps to improve the results of research
Portrait of a Thoughtful Expert Examining Vaccine Ampoules
Young student solving a complex math problem on a blackboard in slow motion
Intelligent young person solving problems in front of a chalkboard
The face of the thinking person in glasses. evening night time
The person in glasses thinking. evening night time
Research Scientist Analyzing Data Indoors
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Pensive lab specialist working in genetics clinic closeup. Thoughtful man scientist looking in microscope thinking on scientific solutions.
vintage scientist looking and studying a bottle of radium glow
A young African American student is sitting at his laptop and studying. Black man Freelancer works at home
Woman scientist portrait. Female scientist face close up. Serious scientist woman working. Medical scientist thinking. Lab woman face in safety glasses. Female lab technician working
The serious man in glasses thinking. evening night time
Doctor or scientist thinks and gives birth to an idea, close-up
Victorian era scientist thinks about what he sees in the microscope
Young Latin woman scientist ponders problem at library
Curious student pondering chemical formula and seeking solutions
vintage scientist looking and studying a bottle of radium
Scientist using digital tablet in office 4k
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Medical researcher developing project in modern clinical laboratory closeup. Serious woman scientist making notes biochemistry research.
College student solves complex math problem at blackboard in slow motion
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Closeup skilled scientist looking at test tube with medical preparation in lab. Young thoughtful researcher in safety checking drugs
Zoom out, crane shoot of Black African American student with glasses sitting at his laptop and studying or working. A Black man freelancer
Portrait of thoughtful young man writing on flipchart in hospital office. Smart doctor thinking on illness treatment.
Professional Doctor Analyzing Ampoules with Magnifying Glass. Close-Up Portrait of Young Woman Examining Drug Samples. Health Care and Medicine.
Young scientist working at home, discovering mistakes and realizing work needs to be redone
Curious student pondering chemical formula and solution
Scientist hands typing on laptop keyboard. Female doctor hand typing laptop. Laboratory woman typing on computer keyboard. Close up of female hands using laptop in lab. Female hands typing on laptop
Thoughtful man in laboratory contemplating on promotion of 3-D technologies into medical researches and practices.
Young college student studying a complex math problem on a chalkboard in slow motion
Portrait of a confident young professional solving a challenging problem
College student solving a challenging math problem on a chalkboard in slow motion
Restless African American man sitting in hospital analyzing diagnosis. Medium shot portrait of serious concentrated professional doctor thinking sitting at table indoors. Medicine concept.
Young doctor analyzing medical results at computer and taking notes
A young Black African American guy is sitting at a table and working on a laptop, looking at pieces of paper with information. The student
Smart scientist conducting research in hospital office.