poniedziałek, 11 grudnia 2017
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Biologia (bakteria, wirus) (389)

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! EN_90261625_0006 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of an H1N1 influenza A (flu) virus particle (virion) on the surface of a red blood cell. In the particle's lipid envelope (red) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
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! EN_90261625_0007 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of part of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (orange) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90261625_0008 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of part of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (orange) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90261625_0009 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (orange) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90258661_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Flu virus particle. Computer artwork of an influenza (flu) A virus particle (virion). In the particle's lipid envelope are two types of protein spike, haemagglutinin (H, red) and neuraminidase (N, yellow), which determine the strain of virus. These are used for recognising and binding to the host cell. At the core of the virus is the RNA (ribonucleic acid) genetic material (green coil).
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! EN_90264163_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Intestinal parasites, computer artwork. Parasitic worms embedded in the lining of the intestine. A number of worms, including threadworm, hookworm and tapeworm, are parasitic on the human gut.
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! EN_90280355_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Stem cell research, conceptual computer artwork. The glowing light behind the stem cell represents the dawning of a new era of medicine involving stem cells. A stem cell is an undifferentiated cell that can produce other types of cell when it divides. Medical researchers believe that eventually it will be possible to manufacture new tissues and organs from stem cells. There are three main types of mammalian stem cell: embryonic stem cells, derived from blastocysts; adult stem cells, which are found in adult tissues; and cord blood stem cells, which are found in the umbilical cord.
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! EN_90280356_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Stem cell with a glowing nucleus, computer artwork. A stem cell is an undifferentiated cell that can produce other types of cell when it divides. Medical researchers believe that eventually it will be possible to manufacture new tissues and organs from stem cells. There are three main types of mammalian stem cell: embryonic stem cells, derived from blastocysts; adult stem cells, which are found in adult tissues; and cord blood stem cells, which are found in the umbilical cord.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90280357_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Stem cells with glowing nuclei, computer artwork. Stem cells are undifferentiated cells that can produce other types of cell when they divide. Medical researchers believe that eventually it will be possible to manufacture new tissues and organs from stem cells. There are three main types of mammalian stem cell: embryonic stem cells, derived from blastocysts; adult stem cells, which are found in adult tissues; and cord blood stem cells, which are found in the umbilical cord.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90280357_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Stem cells with glowing nuclei, computer artwork. Stem cells are undifferentiated cells that can produce other types of cell when they divide. Medical researchers believe that eventually it will be possible to manufacture new tissues and organs from stem cells. There are three main types of mammalian stem cell: embryonic stem cells, derived from blastocysts; adult stem cells, which are found in adult tissues; and cord blood stem cells, which are found in the umbilical cord.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90280357_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Stem cells, computer artwork. Stem cells are undifferentiated cells that can produce other types of cell when they divide. Medical researchers believe that eventually it will be possible to manufacture new tissues and organs from stem cells. There are three main types of mammalian stem cell: embryonic stem cells, derived from blastocysts; adult stem cells, which are found in adult tissues; and cord blood stem cells, which are found in the umbilical cord.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90281253_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Swine flu virus particle. Computer artwork of a swine influenza (flu) virus particle. At the core of the virus is RNA (ribonucleic acid, orange) genetic material. This is surrounded by a nucleocapsid and a lipid envelope. In the envelope are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90261625_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (purple) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90261625_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (purple) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90261625_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (purple) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90261625_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY H1N1 flu virus particle. Computer artwork of an H1N1 influenza A (flu) virus particle (virion). In the particle's lipid envelope (purple) are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90281253_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Swine flu virus particle. Computer artwork of a swine influenza (flu) virus particle. At the core of the virus is RNA (ribonucleic acid, blue) genetic material. This is surrounded by a nucleocapsid (brown) and a lipid envelope (red and orange). In the envelope are two types of protein spike, haemagglutinin (H, green) and neuraminidase (N, purple), which determine the strain of virus. These are used for recognising and binding to the host cell.
Wysoka rozdzielczosc dostepna na zamowienie
! EN_90253004_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Computer viruses, conceptual computer artwork. The viruses (green) are shown against a background of a skull (representing the harm done by the computer viruses) and rows of binary code (zeros and ones). Binary code is used to program and operate computers. A computer virus is a malicious computer program that is often able to spread itself to other computers.
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! EN_90276046_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Rod-shaped bacteria, computer artwork. Typical rod-shaped bacteria (bacilli) include Escherichia coli and Salmonella bacteria, but there are many others.
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! EN_90276046_0005 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Rod-shaped bacteria. Computer artwork of bacteria in a petri dish. Typical rod-shaped bacteria (bacilli) include Escherichia coli and Salmonella bacteria, but there are many others.
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