Search results for "blood circulation"

Blasen-Stromuhr (bubble flow meter) mit Rohrelektroden und einem Me�wertumformer zur linearen Registrierung auf Direktschreibern

1961

Es wird eine Blasen-Stromuhr beschrieben, die an Stelle einer Photozelle ein Elektrodenpaar zur Anzeige des Blasendurchganges aufweist. Damit lassen sich auch optisch leichtdurchlassige Flussigkeiten messen. Die Impulse brauchen nur einstufig verstarkt zu werden, eine zweite Rohre erzeugt fur hohe Durchflusgeschwindigkeiten eine Wechselspannung zum Anlegen an die Meselektroden.

The active venous pulse in the wing circulation of bats (Chiroptera). A contribution to comparative angiology.

1978

Designing of microcontroller based Syringe Pump with variable and low delivery rates for the administration of small volumes

2015

Delivering medications and fluids intravenously is a common practice in modern medical procedures. Administering medications or fluids directly into a patient's blood circulation results in a predictable and immediate absorption of the drug or fluid administered, this may play a vital role in the treatment of certain acute conditions which require immediate action by drugs or fluids. Syringe Pumps are highly useful in delivering a precise quantity of the substance at specific periods of time as required. This research presents a proposal to create a cost effective working prototype of syringe pump for variable and low delivery rates for the administration of small volumes. The presented Syr…

Peripheral Changes in Blood Circulation during Autogenic Training and Hypnosis (Results of Experimental Research)

1969

In addition to the immobilization of the limbs and the associated sensation of heaviness, most patients in a hypnotic trance also experience a sensation of warmth. This subjective feeling is probably accompanied by increased skin temperature. Attempts have been made in the past to record skin temperature objectively. Most methods of measurement, however, are so defective that they have only rarely proved at all reliable. Hensel (1955, 1964) and his colleagues have described seven variables whose range is so great that the statistical evaluation of such measurements becomes impossible, even though the data may be valid in individual cases. Furthermore, graphic recording is also impracticable…

Time Courses of Erythrocytic Oxygenation in Capillaries of the Lung: Lower and Upper Bounds on Red Cell Transit Times

1987

With the aid of a 2-dimensional computer simulation (Groebe and Thews, 1986), time courses of erythrocytic oxygen uptake in the lung were calculated.

Precapillary Servo Control of Blood Pressure and Postcapillary Adjustment of Flow to Tissue Metabolic Status

1996

Background There are several shortcomings in current understanding of how the microvasculature maintains tissue homeostasis. Presently unresolved issues include (1) integration of the potentially conflicting needs for capillary perfusion and hydrostatic pressure regulation, (2) an understanding of signal transmission pathways for conveying information about tissue energetic status from undersupplied tissue sites to the arterioles, (3) accounting for the experimentally observed interrelations between precapillary and postcapillary resistances, and (4) an explanation of how precise local adjustment of perfusion to metabolic demands is achieved. Methods and Results A novel conceptualization o…

Datortomogrāfijas protokola pielietošana smadzeņu nāves apstiprināšanai

2020

Bakalaura darba tēma ir “Datortomogrāfijas protokola pielietošana smadzeņu nāves apstiprināšanā”. Attīstoties intensīvās terapijas un transplantoloģijas nozarēm, smadzeņu nāves diagnostikā nepieciešams papildus veikt izmeklējumus, kas nodrošina ātru un efektīvu rezultātu, veicot apstiprinājumu smadzeņu nāves diagnozei. Datortomogrāfijas angiogrāfija ir viens no tiem. Bakalaura darba izvirzītā hipotēze ir: datortomogrāfijas protokols smadzeņu nāves apstiprināšanai katrā slimnīcā ir atšķirīgs. Darba mērķis ir noskaidrot datortomogrāfijas protokola pielietošanu smadzeņu nāves apstiprināšanai 3 Latvijas slimnīcās. Pētniecības uzdevumi ir apkopot un analizēt literatūru par galvas smadzeņu anatom…