322,876 research outputs found
Sinus infection in intensive care patients.
No full textSinusitis is a complication known to accompany nasotracheal intubation, but its frequency has not been well established. During a two-year-period, 1,126 patients in an intensive care unit have been studied. Twenty-seven of them (2%) developed a bacterial sinusitis. The diagnosis is established on the basis of an unexplained clinical sepsis, imaging evidence of fluid in the maxillary sinus, and antral puncture. Microbiological samples showed Gram-negative micro-organisms, in particular Pseudomonas aeruginosa, and an elevated percentage of Staphylococcus aureus and Escherichia coli. The likely predisposing factors (nasogastric and/or nasotracheal tubes) are discussed. Aetiology, diagnosis and management of the disease are discussed in detail. The importance of prompt removal of nasal instrumentation and of early sinus drainage, in addition to broad-spectrum antibiotic therapy, is emphasized
CHEMICAL INVESTIGATION AND IN VITRO CYTOTOXIC ACTIVITY OF RANDIA DUMETORUM LAMK. BARK
No full textβ-Sitosterol, lupeol and daucosterol have been isolated from ethanolic extract of Randia
dumetorum bark. β-Sitosterol, Lupeol and Daucosterol have been isolated for the first time from the
Randia dumetorum. β Sitosterol and Daucosterol were identified by complete interpretation of 1H NMR
and 13C NMR spectra using 2D NMR (HSQC, HMBC, DQF-COSY) experiments and Lupeol by direct
comparison with authentic sample. The ethanolic extract is subjected to cytotoxic activity against A549
cell (adenocarcinomic human alveolar basal epithelial cells), BE (2) C (Neuroblastonoma Cell Line), Hela,
MDA-MB-231 (breast cancer cell line), SK MEL-2 (Human Skin Melanoma Cell) and U87MG cell
(Human Neuronale Gliblostoma astrozytom Cell Line) which showed most effective cytotoxic activity at
400 μg/mL concentration on MDA-MB-231 (Breast Cancer Cell Line)
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The Effectiveness of Abdominal Lymphangioma Laparoscopic Removal in Children: A Single Center Experience
No full textBackground: Lymphangiomas represent 5% of all benign pediatric tumors. Abdominal lymphangiomas (ALs) are extremely rare. Therapy includes surgery, sclerotherapy, or pharmacological treatment. Laparoscopic resection (LR) has been already described, but mainly as case reports. The aim of this study is to present our series of ALs LR. Materials and Methods: From 2007 to 2020, 10 cases of ALs were electively treated by LR. Patients' age ranged from 4 months to 14 years. Preoperative diagnosis was achieved by ultrasonography and magnetic resonance images. In all cases LR was performed with four trocars: a 10 mm transumbilical trocar for camera and extraction and three 3-5 mm operative trocars. Results: Lymphangiomas arise from mesocolon in 5 giant cases, ileal mesentery in 3 and right adrenal gland in 2. LR was achieved without intraoperative complications and need of conversion in all cases. Two giant cases needed a percutaneous puncture under laparoscopic view to gain working space. A minimal ileal resection by video-assisted procedure was carried out in 2. Median hospital length was 4 days; no recurrence of disease at serial ultrasound examinations was seen at median follow-up of 5.9 years. Discussion: Several approaches have been proposed for AL treatment. The main challenges are the huge dimensions, the difficulty to achieve a complete resection, and the risk of recurrence. In this series, elective LR of ALs resulted as feasible and effective, and we consider it the standard surgical therapy
- …
