Reduction Mammaplasty Using Nd:YAG Contact Tip Laser

1993 ◽  
Vol 10 (3) ◽  
pp. 201-206 ◽  
Author(s):  
Jung I. Park
Keyword(s):  
Laser Physics ◽  
Blood Vessels ◽  
Tissue Damage ◽  
Nd:Yag Laser ◽  
Reduction Mammaplasty ◽  
The Other ◽  
Other Hand ◽  
Cold Knife ◽  
Back To Work

Nd:YAG laser with contact tip provides unique advantages over a cold knife and electrocautery in a surgical dissection. The Nd:YAG laser places somewhere in the middle between the traditional electrocautery and the CO2 laser. The Nd:YAG laser has much less tissue damage compared to electrocautery. On the other hand, this laser has afar better ability to coagulate the blood vessels and the advantage of easy maneuverability as compared to the CO2 laser. The author presents his experiences in Nd:YAG laser contact tip for reduction mammaplasty. Seventeen reduction mammaplasties using Nd:YAG contact laser tip were presented. Several patients returned to work within a week after surgery. One patient was well enough to volunteer to go back to work on the fourth post-operative day. The Nd:YAG laser physics, equipment, applications, and surgical cases are discussed.

scholarly journals Working Out Your Pain: Why Intense Exercise Is Painful

2021 ◽  
Vol 9 ◽  
Author(s):  
Marcel Berger ◽  
Daniel Henning ◽  
Michael C. Hout
Keyword(s):  
Physical Exercise ◽  
Tissue Damage ◽  
Warning Signal ◽  
The Other ◽  
Intense Exercise ◽  
Intense Pain ◽  
Other Hand ◽  
Working Out

When it comes to experiencing pain, most people will agree that it is an uncomfortable sensation that we would rather avoid. Pain can vary in intensity—ranging from the mild sensation of stubbing your toe to the intense pain of a broken bone—and we generally think of it as a bad thing. But pain can be thought of in two ways: sometimes it is a warning signal that something is wrong with our bodies, but other times it is benign, meaning it is not an indication that something is necessarily wrong. Warning-signal pain occurs when certain areas of your body get hurt or experience tissue damage, like when a sibling accidentally closes the car door on your fingers. Benign pain, on the other hand, is the type of pain you feel during intense physical exercise, and as you will come to see, is not always something you need to avoid!

Irregularities in the formation of the Willis circle, their frequency and significance in the mentally ill

1901 ◽  
Vol 1 (7-8) ◽  
pp. 393-394
Author(s):  
N. A. Vyrubov
Keyword(s):  
Blood Vessels ◽  
Mentally Ill ◽  
The Other ◽  
Other Hand ◽  
The One ◽  
The Brain

Abstracts. Psychiatry.Dr. N.A. Vyrubov. Inaccuracies in the formation of the Willis circle, their frequency and significance in mentally ill patients.Review of psychiatry, neurology and experimental psychology.May, June, 1901.The author sets himself the task, on the one hand, to find out whether deviations in the formation of vessels of the Willis circle are encountered in the mentally ill more often than in the mentally healthy; on the other hand, do not the mentally ill have any or all of the arteries of the base of the brain a special tendency to deviate in education, that is, show with numbers in hand what anomalies in the formation of blood vessels are encountered most often in mentally ill.

Morphology of Haemostatic Plugs Before and After Aspirin

1975 ◽  
Author(s):  
J. Wester ◽  
J. van der Veen ◽  
J. J. Sixma
Keyword(s):  
Blood Vessel ◽  
Blood Vessels ◽  
Bleeding Time ◽  
Blood Platelets ◽  
The Other ◽  
Normal Volunteers ◽  
Other Hand ◽  
Before And After

Punch biopsies of bleeding time wounds according to Mielke were taken at 3 minutes in normal volunteers before and 2.5 hours after 2 gr. of aspirin. Haemostatic plugs were found at the end of blood vessels. No plug was encountered that had no relation to a blood vessel. Fibrin on the other hand was found in the wound but not in the blood vessel. Some vessels were occluded by capsule-like haemostatic plugs. In many others an extension into the blood vessel was observed. The extension into the blood vessel showed little or no degranulation. Blood platelets were more degranulated and showed peripheral ballooning before aspirin intake. After aspirin intake much less degranulation was observed and less peripheral ballooning was found.

scholarly journals Effects of l-NMMA and l-NNA on the Selective ATP-Induced Enhancement of Intratumoral Blood Flow

1992 ◽  
Vol 12 (1) ◽  
pp. 120-127 ◽  
Author(s):  
Y. Natori ◽  
M. Moriguchi ◽  
S. Fujiwara ◽  
I. Takeshita ◽  
M. Fukui ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Blood Flow ◽  
Blood Vessels ◽  
Inhibitory Action ◽  
The Other ◽  
Hydrogen Clearance Method ◽  
Other Hand ◽  
Selective Enhancement ◽  
Hydrogen Clearance

We studied the effects of NG-monomethyl-l-arginine (l-NMMA) and Nω-nitro-l-arginine (l-NNA) on the selective ATP and adenosine-induced enhancement of intratumoral blood flow in rats measured by the hydrogen clearance method. Both adenosine and ATP produced a selective enhancement of the intratumoral blood flow. Neither l-NMMA nor l-NNA had a significant effect on either the CBF or the intratumoral blood flow. Adenosine-induced enhancement was not inhibited by l-NMMA or l-NNA. On the other hand, the ATP-induced enhancement was totally inhibited by both l-NMMA and l-NNA. The inhibitory action of l-NMMA against ATP was blocked by l-arginine, but not by d-arginine. It is suggested that the ATP-induced increase of intratumoral blood flow is evoked by nitric oxide synthesized from the endothelium of the intratumoral blood vessels.

ACE-I und ARB bei chronischen Nierenerkrankungen: Was muss ich berücksichtigen?

2018 ◽  
Vol 143 (12) ◽  
pp. 880-885
Author(s):  
Martin Zeier
Keyword(s):  
Renal Function ◽  
Kidney Disease ◽  
Renal Insufficiency ◽  
Protective Effect ◽  
Blood Vessels ◽  
Chronic Renal Insufficiency ◽  
The Other ◽  
Advanced Stage ◽  
Cardiac Protection ◽  
Other Hand

AbstractProteinuric kidney disease, especially in the early and middle stages of renal insufficiency, may be favorably affected by ACE-I/ARB. The progression of renal insufficiency is thereby slowed down and dialysis obligation occurs later or can even be avoided. This effect is independent of the underlying glomerular kidney disease. In the advanced stage of renal insufficiency, the benefit of ACE-I/ARB cannot yet be conclusively assessed. The interruption of ACE-I/ARB therapy may possibly contribute to a certain recovery of renal function and delay the onset of dialysis a little. However, studies are still pending and the benefits of ACE-I/ARB for the heart and blood vessels, especially at this stage of renal insufficiency, should not be overlooked.Patients with proteinuria benefit from ACE-I/ARB not only in terms of renal stabilization. A cardio-protective effect by reduction of proteinuria and a delay of progression is proven. On the other hand, the protective effect of ACE-I/ARB that can be detected directly on the heart and blood vessels should not be disregarded. Thus, even if chronic renal insufficiency no longer benefits directly from ACE-I/ARB therapy, cardiac protection may still be of great importance to the chronic kidney patient.

Nd-Yag Laser Use in Face-Lift Surgery

1996 ◽  
Vol 13 (3) ◽  
pp. 239-244
Author(s):  
Jung I. Park
Keyword(s):  
Laser Physics ◽  
Blood Vessels ◽  
Tissue Damage ◽  
Clinical Applications ◽  
Social Activities ◽  
Face Lift ◽  
Yag Laser

The use of the Nd-Yag laser with contact tip for face-lift surgery has significantly reduced postoperative ecchymosis. The Nd-Yag laser causes less tissue damage than electrocautery, and has a better ability to coagulate blood vessels than the CO2 laser. This paper describes laser physics and the mechanics of the Nd-Yag laser contact tip and the clinical applications, and shows results of patients who have had the procedure done with the Nd-Yag laser contact tip. There was very little evidence of ecchymosis postoperatively, which enables patients to return to social activities and/or work rapidly.

A study of cometary eruptions through OH radio-lines

1999 ◽  
Vol 173 ◽  
pp. 249-254
Author(s):  
A.M. Silva ◽  
R.D. Miró
Keyword(s):  
Short Duration ◽  
Growth Curves ◽  
The Other ◽  
Initial Mass ◽  
Radio Lines ◽  
Other Hand ◽  
Sudden Rise

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

Life Beyond 1MeV

1980 ◽  
Vol 38 ◽  
pp. 30-33
Author(s):  
K.H. Westmacott
Keyword(s):  
Electron Microscopy ◽  
Past Experience ◽  
The Other ◽  
Good Case ◽  
Other Hand ◽  
The U.S

Life beyond 1MeV – like life after 40 – is not too different unless one takes advantage of past experience and is receptive to new opportunities. At first glance, the returns on performing electron microscopy at voltages greater than 1MeV diminish rather rapidly as the curves which describe the well-known advantages of HVEM often tend towards saturation. However, in a country with a significant HVEM capability, a good case can be made for investing in instruments with a range of maximum accelerating voltages. In this regard, the 1.5MeV KRATOS HVEM being installed in Berkeley will complement the other 650KeV, 1MeV, and 1.2MeV instruments currently operating in the U.S. One other consideration suggests that 1.5MeV is an optimum voltage machine – Its additional advantages may be purchased for not much more than a 1MeV instrument. On the other hand, the 3MeV HVEM's which seem to be operated at 2MeV maximum, are much more expensive.

Can the Academic Self-Concept be Positive and Realistic?

2005 ◽  
Vol 19 (3) ◽  
pp. 129-132 ◽  
Author(s):  
Reimer Kornmann
Keyword(s):  
Academic Performance ◽  
Opposite Effect ◽  
Self Esteem ◽  
Point Of View ◽  
The Other ◽  
Self Concept ◽  
High Ability ◽  
Self Image ◽  
Other Hand

Summary: My comment is basically restricted to the situation in which less-able students find themselves and refers only to literature in German. From this point of view I am basically able to confirm Marsh's results. It must, however, be said that with less-able pupils the opposite effect can be found: Levels of self-esteem in these pupils are raised, at least temporarily, by separate instruction, academic performance however drops; combined instruction, on the other hand, leads to improved academic performance, while levels of self-esteem drop. Apparently, the positive self-image of less-able pupils who receive separate instruction does not bring about the potential enhancement of academic performance one might expect from high-ability pupils receiving separate instruction. To resolve the dilemma, it is proposed that individual progress in learning be accentuated, and that comparisons with others be dispensed with. This fosters a self-image that can in equal measure be realistic and optimistic.

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