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Copyright of La Revista Latinoamericana de Metalurgia y Materiales, RLMM is the property of Universidad Simon Bolivar, Departmento de Ciencia de los Materiales and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Agro Productividad is the property of Colegio de Postgraduados and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To identify and describe the barriers and opportunities to participate in the General System of Social Security in Health, perceived by User Associations of Valle del Cauca and to reveal the tactics they build to ensure their participation. Materials and Methods: Exploratory qualitative study in the Municipalities of Cali, Jamundí, La Cumbre, Riofrío and Tuluá through focus groups to members (86) of 11 Users' Associations from the public and private sector. A content analysis with mixed categories and data segmentation by municipality, sector and themes was made. The study ended in January 2013. Results: Members of the User Associations identified more obstacles than opportunities to participate because of the following factors: lack of knowledge, apathy, lack of organization, fear of reprisals, absence of institutional support, lack of recognition to their efforts, political manipulation, and restricted access to information, among others. They perceived as opportunities: self-recognition, the need to help others and the support of some institutions, especially public ones. The tactics constructed to guarantee their participation are to strengthen social networking and persistent work. Conclusions:The results reveal that Users' Associations are self-critical solidary actors that in addition to a perception of achievement and persistent work, place them as decisive actors in the construction of interaction and dialogue scenarios with health institutions and the Government, leading to a social construction of better health services. Only changes in the same direction from health institutions would be urgent and necessary. [ABSTRACT FROM AUTHOR]

Copyright of Ciencia en su PC is the property of Instituto de Informacion Cientifica y Tecnologica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Biomedical Engineering Journal / Revista Ingeniería Biomédica is the property of Biomedical Engineering Journal / Revista Ingenieria Biomedica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Chilena de Obstetricia y Ginecología is the property of Revista Chilena de Obstetricia y Ginecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Chilena de Obstetricia y Ginecología is the property of Revista Chilena de Obstetricia y Ginecologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Information is given on the distribution and abundance of G. toxicus in an artificial bay and coral reef at NW of Havana City. In general, no preference was observed in the species for a given substratum, while the biggest abundance was detected during the months between May to August (3077, 3257 y 3598 cel.g-1). Densities in the artificial bay (3077, 3257, 307 cel.g-1) were higher than in the coral reef (273, 294, 204 cel.g-1), coinciding with moments of calm and total transparency. [ABSTRACT FROM AUTHOR]

Copyright of Revista Argentina de Anatomia Online is the property of Asociacion Argentina de Anatomia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A first phytoplankton species checklist of an eutrophic coastal lagoon (Bojorquez) in the Mexican Caribbean Sea is reported. Sampling was carried out from April 1998 to November 1999. A total of 122 species were recorded, representing the main phytoplankton groups. Bacillarophycea (69), Dinophyceae (35), Cianobacteria (12), Chlorophyceae (4) y Dictyochophyceaea (2). Navicula sp. was recorded as the most frequently taxon, while higher number of species registered (93) was a the station with marine conditions. All the taxa reported are new records for this area of the Caribbean Sea. [ABSTRACT FROM AUTHOR]

The structural study and phase diagram of the alloy system Cu2Zn1-zMnzSnSe4 are reported. Polycrystalline samples were synthesized using the direct fusion and annealing technique from the constituent elements. X-ray diffraction analysis indicates that system crystallizes in the tetragonal stannite structure with a possible space group. From differential thermic analysis (DTA) experiment the phase diagram was constructed for alloy system, which suggests that the region between 600 and 700 °C is biphasic coexisting stannite and wurtz-stannite phases (+). The peritectic decomposition of the system   (L+ZnSe) in the region between z = 0 and z  0.80 occurs at  800 ºC, for z > 0.80 the peritectic temperature decreases to 700 ºC with z = 1.0. The transition of liquid L to (L+ZnSe) is given by the boundary line between 1075 ºC with z = 0 and 770 ºC with z  0.80. The region of the diagram below 600 ºC corresponds to the appearance of the tetragonal stannite phase, as it indicated by the X-ray diffraction study at room temperature. [ABSTRACT FROM AUTHOR]

High Resolution Transmission Microscopy (HRTEM) and powder X-ray diffraction are used to investigate the disorder observed in crystalline benzilic acid. Powder synchrotron X-ray diffraction are used to solve the crystal structure of benzilic acid, (C6H5)2C(OH)CO2H, a compound which exhibits diffuse scattering due to disorder in the crystalline state. The structure was initially obtained in an orthorhombic sub-cell which could be transformed into a monoclinic cell, P21/a (No. 14) of dimensions a = 11.2535 (2) Å, b = 8.5387(2) Å, c = 24.7691 (4) β = 103.078 (1) °, V = 2318.35(9) A³, with Z = 8. The micrographs obtained from High Resolution Electron Microscopy (HRTEM), Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) showed the form of crystals, crystal defects and disorder that account for the diffuse scattering. [ABSTRACT FROM AUTHOR]

Aim: The objetive of this study was to determine the effect of TPN after surgery in patients with colon carcinoma and preoperative chemotherapy. Material and method: The study included 27 patients, 16 men and 11 women, with a mean age of 62.1 ± 11.2 years. The patients were divided into two groups according to whether they had undergone chemotherapy (Group A; n = 11) or not (Group B, control; n = 16) prior to surgery. Almost two thirds of the patients were in stage III of the disease. Among those receiving this treatment, 60% were given 5-fluorouracil plus leucovorin at a dose of 5.5 ± 2.7 cycles/patient and the others received different regimens. TPN was established early with a mean of 11.7 ± 9.2 days. The clinical and nutritional assessment was performed before surgery and at the end of TPN administration. Results: The mean body mass index (BMI) was 24.1 ± 2.2 kg/m². Comparison between the groups before the start of TPN showed statistically significant differences in red blood cell and platelet counts (P = .013 and P = .02, respectively). These differences had disappeared at completion of TPN, suggesting that this treatment can reverse the hematological changes induced by chemotherapy. Conclusion: In patients who receive chemotherapy before surgery and in whom TPN it was indicated the combination of these two treatments could be beneficial. [ABSTRACT FROM AUTHOR]