Die Struktur von Tadalafil erlaubt eine selektive Bindung an die Bindungsstelle der PDE5 und minimiert gleichzeitig die Interaktion mit PDE6, was visuelle Nebenwirkungen einschränkt. Seine Verteilung im Organismus erfolgt breit, wobei das Verteilungsvolumen etwa 63 Liter beträgt. Über 90 % des Wirkstoffs sind an Plasmaproteine gebunden. Die Wirkung bleibt unabhängig von der Nahrungsaufnahme konstant. Der Abbauweg über CYP3A4 kann durch Hemmer wie Ritonavir oder Ketoconazol verlangsamt werden, was die Plasmakonzentrationen deutlich erhöht. In diesem Kontext wird cialis 20mg preis häufig in Bezug auf pharmakokinetische Wechselwirkungen erwähnt.
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INTERNATIONL MATHENATICS AND SCIENCE OLYMPIAD FOR PRIMARY SCHOOLS (IMSO) 2004 Science Contest in Taiwan Name:1 1 School: 11 1 1 11 Grade: 11 1 1 ID number: 11 11 111
_____1. It is a process whereby a fluid spreads from a more concentrated area to a less
Answer: A. diffusion
_____2. When masses of cold and warm air meet, they form a/ an ________.
Answer: A. front
_____3. The transfer of pollen grains from one flower to the stigma of another flower of the same
A. cross-pollination B. self-pollination
Answer: A. cross-pollination
_____4. A neutral atom consists of charged particles. The negatively-charged particle surrounding
Answer: A. electron
_____5. Lymphocytes are one of the major types of white blood cells. Which endocrine gland
stimulates the production of lymphocytes?
Answer: B. thymus
_____6. A person gets infected by hepatitis A – causing bacteria. Which part of the body does
Answer: B. liver
_____7. A blood vessel that carries mostly deoxygenated blood towards the heart is the ________.
Answer: D. vein
_____8. What do you call the position of the moon farthest from the Earth?
Answer: A. apogee
_____9. In plants, fertilization takes place when ________.
A. the sperm nucleus unites with the egg cell of the volume. B. seeds begin to germinate. C. pollen grains fall from the petals D. fruit begins to form
Answer: A. the sperm nucleus unites with the egg cell of the ovule.
_____10.If sound waves were to travel from one end to the other of each block at the same starting
time, where will the sound reach the other end first?
Answer: B. railroad track
_____11.Atoms of the same elements have the same atomic numbers but may have different mass
numbers. This species is called ________.
Answer: C. isotopes
_____12.It is the imaginary line that divides the earth into two halves: the northern and the southern
Answer: D. equator
_____13.All planets revolve around the sun in a certain path called ‘orbit’. The sphere of the earth’s
Answer: B. elliptical
_____14.A waling-waling is attached to a tree. It is example of a relationship known as ________.
Answer: D. commensalism
_____15. The attraction of the molecules of a substance to the molecules of the same substance is
Answer: C. cohesion
_____16.More than 300 years ago, Robert Hooke used a primitive microscope to observe the box-
like cavities in slices of cork. These compartments are found to be the structural and functional unit of life. They are now called ________.
Answer: B. cells
_____17.Scientists have found that the amount of carbon dioxide in the atmosphere has increased
significantly in the past years causing a rise in the global temperature. The trapping of heat radiation in the earth’s atmosphere is known as the ________.
Answer: C. greenhouse effect
_____18.It is a state of matter that is composed of electrically charged atomic particles.
Answer: plasma
_____19.The rhythmic expansion and contraction of blood vessels caused by the pressure of the
Answer: D. pulse
_____20.The moon and the sun exert a gravitational pull on earth causing a change in the water
level of the oceans. What do you call this rise and fall in water level?
Answer: D. tide
_____21. In females, what do you call the hormone whose function is important for the occurrence
Answer: C. progesterone
_____22. The hormone responsible for the development of secondary male characteristics is
Answer: C. testosterone
_____23. It states that the Earth’s crust is broken into small pieces. This theory is ________.
Answer: C. Plate Tectonic Theory
_____24. It is the ability of a substance to scratch another substance.
Answer: C. hardness
_____25.When food is swallowed, it is involuntarily pushed along the esophagus. What do you call
the ‘wavelike’ motion of the muscles in this tube?
Answer: A. peristalsis
_____26. Liza fills a drum with water. If she makes three equal holes on the side of it at different
heights, which of following best represents the situation?
Answer: A.
_____27. If after the first heating the substance is said to exhibit the same chemical properties as the
original one, what could have been the cause of the decrease in mass?
Answer: C. it gives off water vapor
_____28. What kind of change occurred after the second heating?
_____29. A positively charged atom is called a (an) ________
Answer: B. cation
_____30. Which of the following is NOT an example of matter?
Answer: C. light
Complete Summary GUIDELINE TITLE BIBLIOGRAPHIC SOURCE(S) Finnish Medical Society Duodecim. Sore throat and tonsillitis. In: EBM Guidelines. Evidence-Based Medicine [CD-ROM]. Helsinki, Finland: Duodecim Medical Publications Ltd.; 2005 Dec 28 [Various]. [3 references] GUIDELINE STATUS This is the current release of the guideline. This guideline updates a previous version: Finnish
TP de Physiologie Animale :Hémolyse Introduction Les cellules des êtres vivants sont le siège d’échange incessant d’eau ou de substancesdissoutes, ces échanges se font grâce à la perméabilité membranaire. Ces échanges se font du milieu le moins concentré vers le plus concentré grâce à une force detraction appelée osmose ou pression osmotique. Le but du TP d’hémolyse es