Pulmonary actinomycosis masquerading as aspergilloma.

We report a case of a 34-year-old man who was initially treated as community acquired pneumonia following a three-month-history of productive cough, loss of weight and loss of appetite. However, three months after discharged from the hospital, he presented again with worsening respiratory symptoms and radiological evidence of a lung cavitation with intracavitary lesion resembling an aspergilloma associated with surrounding consolidation. Unfortunately, he remained symptomatic despite on antifungal therapy. The repeat computed-tomography demonstrated persistent cavitating lesion with development of necrotising pneumonia. He underwent lobectomy and the histopathological analysis of the resected specimen however revealed the diagnosis of actinomycosis.

Adsorption of humic acid from aqueous solutions on crosslinked chitosan-epichlorohydrin beads: kinetics and isotherm studies.

The adsorption of humic acid on crosslinked chitosan-epichlorohydrin (chitosan-ECH) beads was investigated. Chitosan-ECH beads were characterized by Fourier transform infrared spectroscopy (FTIR), surface area and pore size analyses, and scanning electron microscopy (SEM). Batch adsorption experiments were carried out and optimum humic acid adsorption on chitosan-ECH beads occurred at pH 6.0, agitation rate of 300 rpm and contact time of 50 min. Adsorption equilibrium isotherms were analyzed by Langmuir and Freundlich models. Freundlich model was found to show the best fit for experimental data while the maximum adsorption capacity determined from Langmuir model was 44.84 mg g(-1). The adsorption of humic acid on chitosan-ECH beads was best described with pseudo-first-order kinetic model. For desorption study, more than 60% of humic acid could be desorbed from the adsorbent using 1.0M HCl for 180 min.

Biosorption of copper ions from dilute aqueous solutions on base treated rubber (Hevea brasiliensis) leaves powder: kinetics, isotherm, and biosorption mechanisms.

The efficiency of sodium hydroxide treated rubber (Hevea brasiliensis) leaves powder (NHBL) for removing copper ions from aqueous solutions has been investigated. The effects of physicochemical parameters on biosorption capacities such as stirring speed, pH, biosorbent dose, initial concentrations of copper, and ionic strength were studied. The biosorption capacities of NHBL increased with increase in pH, stirring speed and copper concentration but decreased with increase in biosorbent dose and ionic strength. The isotherm study indicated that NHBL fitted well with Langmuir model compared to Freundlich and Dubinin-Radushkevich models. The maximum biosorption capacity determined from Langmuir isotherm was 14.97 mg/g at 27 degrees C. The kinetic study revealed that pseudosecond order model fitted well the kinetic data, while Boyd kinetic model indicated that film diffusion was the main rate determining step in biosorption process. Based on surface area analysis, NHBL has low surface area and categorized as macroporous. Fourier transform infrared (FT-IR) analyses revealed that hydroxyl, carboxyl, and amino are the main functional groups involved in the binding of copper ions. Complexation was one of the main mechanisms for the removal of copper ions as indicated by FT-IR spectra. Ion exchange was another possible mechanism since the ratio of adsorbed cations (Cu2+ and H+) to the released cations (Na+, Ca2+, and Mg2+) from NHBL was almost unity. Copper ions bound on NHBL were able to be desorbed at > 99% using 0.05 mol/L HCl, 0.01 mol/L HNO3, and 0.01 mol/L EDTA solutions.

Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents: a review.

The application of low-cost adsorbents obtained from plant wastes as a replacement for costly conventional methods of removing heavy metal ions from wastewater has been reviewed. It is well known that cellulosic waste materials can be obtained and employed as cheap adsorbents and their performance to remove heavy metal ions can be affected upon chemical treatment. In general, chemically modified plant wastes exhibit higher adsorption capacities than unmodified forms. Numerous chemicals have been used for modifications which include mineral and organic acids, bases, oxidizing agent, organic compounds, etc. In this review, an extensive list of plant wastes as adsorbents including rice husks, spent grain, sawdust, sugarcane bagasse, fruit wastes, weeds and others has been compiled. Some of the treated adsorbents show good adsorption capacities for Cd, Cu, Pb, Zn and Ni.

Comparison of three types of tubal sterilisation: the medan experience.

Three methods of tubal sterilisation, viz. laparoscopy, culdoscopy and minilaparotomy, were evaluated in a trial involving 300 voluntary acceptors at the University Hospital in Medan, Indonesia. Equal numbers of women were randomly assigned to the three surgical groups. The results showed little differences among patients in the three groups for age, number of living children, contraceptive and abortion histories and pre-existing medical conditions. As expected, average surgical time for minilaparotomy was significantly higher than the times reported for the endoscopic techniques. Minilaparotomy also produced the highest incidence of operative complications while culdoscopy accounted for the highest rate of hospitalisation following operation. Four-year follow-up of the patients revealed only one case of pregnancy in the culdoscopy group, three years after tubectomy .

PIP: 3 methods of tubal sterilization, laparoscopy, culdoscopy, and minilaparotomy, were evaluated in a trial involving 300 volunteer acceptors at the University Hospital in Medan, Indonesia. Equal numbers of women were randomly assigned to the 3 surgical groups. The results showed little differences among patients in the 3 groups for age, number of living children, contraceptive and abortion histories, and preexisting medical conditions. As expected, average surgical time for minilaparotomy was significantly higher than the times reported for endoscopic techniques. Minilaparotomy also produced the highest incidence of operative complications while culdoscopy accounted for the highest rate of hospitalization following the operation. 4-year follow-up of the patients revealed only 1 case of pregnancy in the culdoscopy group, 3 years following tubectomy.

The acceptability of the Copper 7, Multiload 250 and Copper T 220C intrauterine devices.

PIP: 1725 patients were recruited for a prospective, randomized, comparative study of 3 IUDs: the Gravigard (Cu 7), Copper T 220C (T Cu 220C), and the Multiload 250 (ML Cu 250). All 3 devices were acceptable to patients with a continuation rate of over 60% at 2 years. The rates for accidental pregnancy and expulsion at 2 years were significantly higher for the Cu 7 when compared with the ML Cu 250 (P0.05) and the T Cu 220C (P0.01). Use-related terminations were more common with the Cu 7 than the ML Cu 250 (P0.05). All but 1 of the physicians questioned felt that the ML Cu 250 gave the least problems at insertion.^ieng

A randomised comparative evaluation of the copper 7, multiload copper 250 and T copper-22OC IUDs.

Two new Cu-IUDs, the TCu-22OC and Multiload Cu250, were evaluated against the Cu7 in 1,199 subjects in a randomised, multicentric trial using a common study protocol. During the 2 years following insertion, cumulative first-segment rates for total use-related terminations showed no significant differences between the 3 devices; however, the Cu7 had a significantly higher termination rate for accidental pregnancy compared to the TCu-22OC and its expulsion rate was significantly higher than the ML Cu250. The rate of accidental pregnancy was higher and the expulsion rate lower with the ML Cu250 compared to the TCu-22OC but these differences were not significant. The results are discussed in relation to IUD design and their application in family planning.

Sperm-agglutinating antibodies in 236 infertile couples.

PIP: 19 wives of 236 couples had positive sperm agglutination tests. (SPAT) 6 of the 19 belonged to the 70 couples (9.4%) with no no known cause for infertility; 11 belonged to the group of 154 couples (7.1%) with a known cause; and 2 to the 12 couples inadequately investigated (15.7%). 6 of these 19 women (31.6%) became pregnant without condon therapy; of these 6, 3 had no known cause for infertility and 3 had a known cause. 11 husbands had positive sperm aggluatination tests. 4 of these 11 were among the 70 couples (5.6%) with no known cause for infertility, while the other 7 were among the 154 couples (4.5%) with a known cause. 5 of their wives (45.5%) became pregnant without any treatment. Outcomes of 8 of 11 pregnancies were normal deliveries and no abortioons, which showed that positive SPAT had no apparent effect on the pregnancies. There was no relationship between postitive SPAT and history of venereal disease, allergy, autoimmune disease, abortioon, postcoital tests, or ABO imcompatability.^ieng