Reliability analysis of computing systems using simulations.

The reliability of a computer system depends on the degree of influence on its components and the whole system of factors such as environmental conditions, supply voltage, mode of operation, the schedule of preventive maintenance and others. PKTB ASUZHT investigated the influence of these factors for different types of computers.

Reliability conventionally characterized by the number of failures for a certain period of time (downtime technical failure). Analysis of the impact of external factors on the reliability was performed using a simulation model, which is based on well-known in mathematical statistics regression equations.

As the output of the dependent

Continue reading Reliability analysis of computing systems using simulations.

Analysis and forecast of the market

Company J’son & Partners Consulting presents to your attention the results of the study «Analysis and Forecast of the LTE market in Russia.»

According to GSA in May 2013, in the world there are 175 commercial LTE networks in 70 countries. It is predicted that by the end of 2013 in 87 countries will be deployed 248 such

Commercial LTE-network in Russia:

Estimates J son & Partners Consulting, at the end of 2012 the number of LTE subscribers in Russia has exceeded 850 thousand., Or less than 1% of the world total (100 million). This penetration of 4G in

Continue reading Analysis and forecast of the market

Fecal (scraping) to enterobiasis

Analysis Kal (scraping) to enterobiasis — detection of pinworm eggs (helminths, clinical manifestations of which are itching of the anus and intestinal disorders).

As shown by the analysis of feces?

Investigation of fecal enterobiasis reveals the presence or absence of pinworm eggs.

What are the indications for analysis?

Suspicion of being infected with pinworm (Enterobius vermicularis); "Barrier" analysis (at admission, registration of medical books, references to the pool, etc.)

How to gather material for the study?

In the morning until the toilet stool and holding the genitals with a cotton swab dipped in glycerin to scrape the

Continue reading Fecal (scraping) to enterobiasis

Fecal bacteria overgrowth

Fecal bacteria overgrowth — a study of human intestinal microflora.

As shown by the analysis of fecal bacteria overgrowth?

The analysis evaluated the concentration and the ratio of "useful" (lactobacilli, bifidobacteria, E. coli), opportunistic (Enterobacteriaceae, Staphylococcus, Clostridium, mushrooms) and pathogens (Shigella, Salmonella) microorganisms. Due to various causes of intestinal microflora may disappear "good" bacteria and fungi appear genus Candida, Staphylococcus, Proteus, Pseudomonas aeruginosa.

In some cases, prescribe fecal bacteria overgrowth?

unstable stool (constipation, diarrhea); pain and discomfort in the abdomen, bloating; intolerance of some products; skin rash; · an allergic reaction; intestinal infections; long-term hormone

Continue reading Fecal bacteria overgrowth

Fecal occult blood

Fecal occult blood test — to identify "hidden" blood, invisible under microscopic examination.

What does the fecal occult blood?

The presence of any bleeding from the digestive tract.

What are the indications for analysis?

Suspicion of bleeding from any gastrointestinal tract.

How to prepare for the study?

7-10 days prior to delivery drugs cancel analysis (all laxative preparations bismuth, iron). It is impossible to do on the eve of an enema. After the X-ray examination of the stomach and intestines analysis of feces appointed no earlier than two days.

What is necessary to stick

Continue reading Fecal occult blood

Fecal helminth ova (eggs of worms)

Analysis fecal helminth eggs (eggs of worms) — Detection of eggs of worms (worms) that cause a group of diseases known as worm infections. More often than not cause disease in humans round and flat worms.

What does the fecal helminth eggs?

The study reveals the stool helminth infections — ascariasis, trichinosis, hookworm.

What are the indications for analysis?

Suspicion of being infected with worms; "Barrier" analysis (at admission, registration of medical books, etc.)

How to collect feces for research?

Feces collected in a disposable container with a screw cap and stomach in an amount

Continue reading Fecal helminth ova (eggs of worms)

A blood test for HIV

A blood test for HIV (AIDS, antibodies to HIV) — detection of antibodies occurring in the body in response to infection with the human immunodeficiency virus (HIV). 

When blood tests that the result is reliable?

The standard assay (ELISA) is recommended in 1.5-3 months after exposure, when they begin to detect antibodies to HIV in the blood of an infected person. PCR analysis showing the presence of virus 2-3 weeks after infection.

In some cases, prescribe a blood test for HIV?

A blood test for HIV infection recommend donate at:

planning a pregnancy; preoperative and hospitalization; unclear cause

Continue reading A blood test for HIV

A blood test for tumor markers

A blood test for tumor markers — identification of specific proteins in the blood that are produced by cells of malignant tumors.

Why do I need to do research for tumor markers?

to obtain information about the presence or absence of tumor, along with other methods of investigation; study provides an opportunity to distinguish benign from malignant; determination of tumor markers before and after treatment helps to assess its effectiveness; to control the disease after treatment and early detection of recurrence.

Is it possible to detect tumor markers in the blood of a healthy person?

A

Continue reading A blood test for tumor markers

A blood test for PSA

A blood test for PSA (PSA, prostate specific antigen) — detection in the blood of men of a special substance that is produced by cells of the prostate gland. Oncomarker PSA is prostate cancer.

What are the indications for the analysis of the PSA test?

Monitoring the course of prostate cancer and the effectiveness of the treatment. Suspected prostate tumor after other studies (for example, after a digital rectal exam or ultrasound). Patients who received radical (anti-cancer) treatment for prostate cancer, it is recommended to analyze every 3-4 months. Preventive screening men older than 40 years, the identification of

Continue reading A blood test for PSA

Analysis of blood clotting (coagulation)

Analysis blood coagulability (Coagulation) — a study of blood clotting.

What are the indications for coagulation?

pathology of blood coagulation; · examination during pregnancy; preoperative and postoperative period; varicose veins of the lower extremities; autoimmune diseases; liver disease; cardiovascular disease; · control during long-term treatment of indirect anticoagulants.

What indicators are included in the analysis of blood clotting? What are their normal values?

Prothrombin INR (prothrombin time) — 78-142%, thrombin time — 11-17,8 s (seconds) Fibrinogen — adults — 2.00 — 4.00 g / l; newborns — 1,25-3,00 g / l.

How to prepare for

Continue reading Analysis of blood clotting (coagulation)

SQL - 16 | 5,712 сек. | 7.25 МБ