Polymeric resins containing modified starch as environmentally friendly adsorbents for dyes and metal ions removal from wastewater.

Effective removal of organic and inorganic impurities by adsorption technique requires the preparation of new materials characterized by low production costs, significant sorption capacity, and reduced toxicity, derived from natural and renewable sources. To address these challenges, new adsorbents have been developed in the form of polymer microspheres based on ethylene glycol dimethacrylate (EGDMA) and vinyl acetate (VA) (EGDMA/VA) containing starch (St) modified with boric acid (B) and dodecyl-S-thiuronium dodecylthioacetate (DiTDTA) for the removal of dyes: C.I.

Phenoxyacid pesticide adsorption on activated carbon - Equilibrium and kinetics.

The adsorption of herbicides belonging to the group of halogenated phenoxyacids on the activated carbon was studied. They are differentiated in terms of quantity and type of functional groups (such as chloride, bromide, fluoride) and their position on an aromatic ring. The experimental equilibrium data were analyzed using adsorption isotherm equations taking into account energetic heterogeneity of the adsorption systems.

The use of halloysite functionalized with isothiouronium salts as an organic/inorganic hybrid adsorbent for uranium(VI) ions removal.

Elimination of U(VI) from nuclear wastes and from the underground water near the uranium mines is the serious problem. Therefore search for new sorbents for U(VI) is still a big challenge for the scientists. This paper investigates of U(VI) ions sorption on halloysite modified with the isothiouronium salts: S-dodecaneisothiouronium bromide (ligand 1), S,S'-dodecane-1,12-diylbis(isothiouronium bromide) (ligand 2), S-hexadecaneisothiouronium chloride (ligand 3), S,S'-naphthalene-1,4-diylbis(methylisothiouronium) dichloride (ligand 4), and S,S'-2,5-dimethylbenzene-1,4-diylbis(methylisothiouronium) dichloride (ligand 5).

[The potential of ultrasonographic detection of vascular pathology of the bowel in children with portal hypertension syndrome].

Complex ultrasonography gives the objective information about the structure of liver and spleen, as well as about the blood flow in the bowel vessels. Color flow mapping makes it possible to determine the grade of the blood filling of the bowel wall in children with portal hypertension syndrome (PHS). We have provided the qualitative indices of intestinal blood flow in healthy children and in children with PHS.

[Echographic signs of biliary atresia].

The assessment of echographic features of biliary atresia was conducted in 65 newborn children ageing up to 3 mo. Their characteristic variants were revealed: the absence or reduction in size of gall-bladder, the presence of hyperechogenic triangular formation in V. portae bifurcation (the symptom of "triangular cicatrix"); the thickening of anterior wall of V.

[The methods and principles for ultrasonic study of the digestive tract].

The paper addresses issues of preparation of patients for ultrasound investigation of the stomach and bowels. Echographic structure of hollow organs in the norm is presented. Approaches to examining different portions of the stomach and intestine are outlined.

[The potentials of echography in the diagnosis of chronic colitis].

Ultrasonic signs of colitis were studied in 24 adults aged 20 to 53 yr and 38 children aged 3-16 yr in whom chronic colitis was diagnosed. 2 adults and three children had ulcerative colitis. The results obtained showed that with the aid of echography it is possible to detect inflammatory lesions in the large intestine as well as to observe the time course of changes in its wall during the course of treatment.

[The correlation of the clinical and the computed tomographic changes in patients with atherosclerotic circulatory encephalopathy].

Correlation has been carried out between hemodynamic, structural and clinical changes in stenotic lesions of major brain arteries in 175 patients with atherosclerotic dyscirculatory encephalopathy. The paper analyses the results of ultrasonic and radioopaque diagnosis of vascular lesions of the head and neck, those of clinical, neurological observations and data from computerized tomography scans of the brain. Topographic connections have been established between hemodynamic, structural and neurological manifestations of the disease.

[Antiviral action of the macromolecular derivative of the platinum with deoxyribonucleic acid in the treatment of patient with malignant liver neoplasm].

Results of the action of a preparation consisting of cis-dichlorodiammineplatinum and deoxyribonucleic acid combined in the saline balanced solution by means of the original technique on cytomegalovirus infection of patients with cancer of the liver are presented. Clearly pronounced antivirus activity of the preparation developed is noted.

[Diagnosis of cancer of the pancreatic body and tail].

Results of 194 patients observation with cancer of corpus et cauda pancreatis are adduced. Clinical forms of the disease are distinguished. Rational algorithm for the examination of patients with probable cancer of corpus et cauda pancreatis diagnosis was elaborated grounded on the efficacy analysis of various methods of examination (ultrasonic investigation, computed tomography, endoscopic retrograde cholangiopancreatography, selective, angiography and so on).

[Computerized tomographic semiotics of acute pancreatitis].

In the article, the expediency of the use of computerized tomography in the diagnosis of the different forms of acute pancreatitis in 49 patients is substantiated and results are analysed.

[Tactics for treating multiple liver abscesses formed after creation of a biliodigestive anastomosis].

The authors treated 18 patients with multiple cholangiogenic hepatic abscesses, which developed after creation of the biliodigestive anastomoses due to digestive-biliary reflux with prolonged retention of food masses in the bile ducts, duodenostasis and stenosing of the anastomosis. Puncture of the abscesses under guidance of sonography in combination with complex antibacterial therapy, timely correction of digestive-biliary reflux contributed to achieving the satisfactory result of treatment.

[Clinical and ultrasonic diagnosis of diseases of the hepatobiliary system in chronic alcoholics].

Functional and structural changes of the hepato-biliary system were assessed in 56 persons with different forms of chronic alcoholism. In patients with prenosological forms of chronic alcoholism despite the absence of clinical manifestations and functional disorders of the liver, phenomena of fatty infiltration of the liver were revealed by means of ultrasound examination. Patients with chronic alcoholism of grade II and III showed an increase of the activity of aminotransferases, increased values of the thymol test, hypoalbuminemia, disorders of lipid metabolism.

[Potentialities of ultrasonic diagnosis of tumors of the stomach].

On the basis of examination of 15 patients, the possibilities of ultrasound diagnosis of gastric cancer are shown.

[Echography in the differential diagnosis of mechanical and parenchymatous jaundice].

The authors have examined 280 patients with the syndrome of jaundice and bilirubinemia of more than 21 mumol/l in order to establish echographic differential diagnostic criteria of mechanical and parenchymatous jaundice. The method of echography enabled the correct type of jaundice to be established in 97% of cases, in 73.8%--the level, length and origin of obstruction.