The surface is  :

 ,  ,  ,    

and its spherical parametrisation can be :

A student is reviewing formed blood elements before her exam. She has pictures of the following ones. Picture of which leukocyte does she need to get to learn a complete set of leukocytes?

The family is at home on a Saturday afternoon

playing board games together. Already during the afternoon, two family members

have a headache and feel slightly dizzy. In the evening, the situation worsens

and the younger daughter starts vomiting and is noticeably sleepy. The parents

take her and her older sister, who is also unwell, to the emergency. There, it

is discovered that the cause is carbon monoxide poisoning, which the whole family

has poisoned during the afternoon and evening thanks to the broken tankless gas

water heater in the bathroom. Carbon monoxide binds to hemoglobin about 210

times more strongly than oxygen, forming carboxyhemoglobin and occupying oxygen-binding sites. The result is tissue anoxia. Which of these parameters will be

reduced as a result of carbon monoxide poisoning?

A 24-year-old female patient is brought to the hospital by ambulance

after being stung by bees for a severe allergic reaction. As part of an

allergic reaction, many mediators are released. Among the most abundant are

heparin and histamine. Their largest amount is stored and subsequently released

after contact with the allergen from the granules of two cell types - mast

cells and…. (fill in the second cell type).

55-year-old wo

man

with a history of chronic kidney disease comes

to the physician for a 2-month history of easy

fatigability. Physical examination shows subconjunctival pallor. Her hemoglobin

concentration is 80 g/l. Treatment with erythropoietin has been administered. A

peripheral blood smear is obtained one week after treatment. A photomicrograph

of the smear after specialized staining is shown. The prominent color of the intracellular structure in

some of the cells is most likely the result of staining which of the following?

A 31-year-old female patient presents to her GP

suffering from increasing fatigue, shortness of breath on exertion, and

weakness. During the physical examination, the physician notes marked pallor of

the skin and mucous membranes as well as tachycardia. From these symptoms, the

physician suspects anemia, so he takes the patient's blood and has a basic

blood count, among other things, done. The results are particularly

interesting: erythrocytes 2.9*10

Dans un référentiel galiléen , soit un système S, considéré comme matériel, soumis à un ensemble de forces dont la résultante passe par son centre d'inertie G de coordonnées x, y, z dans R. Calculez avec x=3, y=2, z=3 et , , .

Dans un repère , soient (1,3,2) les composantes d'une force , A le point d'application de cette force, B un point quelconque  et (4,5,6) les composantes du vecteur , calculer le moment