46 research outputs found

    Evaluasi Dan Peningkatan Kinerja Pelayanan Ruang Tunggu Keberangkatan Bandara Internasional Ahmad Yani Semarang

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    Ahmad Yani International Airport in Semarang is one of the biggest airports in Central Java. Ahmad Yani International Airport in Semarang connecting various cities in Indonesia, especially Jakarta and Surabaya as well as the city to city which is on the island of Borneo. The number of passengers in the year 2010 amounted to 2,017,952 passengers. To get the service aircraft needs to be provided for the passenger waiting area before departure. The problems that arise are less than the requirement for a seat on the airport passenger terminal, in particular the departure lounge during peak hours and the occurrence of delayed. Data processing using queuing theory that the intensity obtained on 24th November 2012, at ρ = 0.9 <1 and 25th November 2012 ρ = 1.09 > 1 and obtained the optimum amount of seating as many as 269 on 24th November 2012 and 322 on 25th November 2012 at a cost of airport tax of analysis is Rp 38,000.00 while the number of seats as many as 315 existing condition with the existing airport tax fee is Rp 35,000.00

    Petrography and Geochemistry of Metasedimentary Rocks from the Taku Schist in Kelantan, North-East Peninsular Malaysia.

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    The Taku Schist, which is located in the north-east Peninsular Malaysia, is characterized by its North-South oriented elongated body. It forms part of the Indonesian orogenic build-up that was generated via the convergence of the Sibumasu continental unit and Sukhothai Arc. Subsequent petrography analyses of the metasedimentary rocks sourced from the Taku Schist revealed that their formation was attributable to the metamorphism of greenschist into amphibolite facies, which could be observed near the Triassic and Cretaceous intrusions of the Kemahang Granite. The evolutionary process of the rocks could be linked with the interactions occurring between contact and regional metamorphisms. The resulting chemical classification upon their assessment disclosed that the metasedimentary rocks of Taku Schist were made up of greywacke and shale, grouped into the quartzose sedimentary provenance, and belonged to the Continental Island Arc (CIA). This information is required for the tectonic setting discrimination purpose. It is a reflection of the episodic contractions underwent by the Taku Schist, wherein they would lead to the Sibumasu sedimentary cover along with both an accretionary wedge and the genetically-correlated Bentong-Raub melange to different greenschist. Otherwise associated with amphibolite facies, the conditions and depths of the facies were determined according to their position in relation to the upper plate of the Sukhothai Arc

    Immunopathogenesis of inflammatory bowel diseases

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    The aim of review. To present analysis of data on immunopathogenesis of inflammatory bowel diseases.Key points. At genetically sensitive animals inflammatory bowel diseases (IBD) develop at various effects on innate and adaptive systems of immune defense (knock-out and transgenic mice), causing changes of expression of significant immunologic factors with distortion of pro- and anti-inflammatory cells and molecules ratio at their contact to microbiota structures. The physiological state of intestine is characterized by balanced interaction of effector (Th1, Th2, Th17) and regulatory (Treg) cells determining presence of immune tolerance to resident microflora antigens. Innate immunity changes revealed in last years, related to mutations of genes of bacterial structures receptors (NOD2, toll-like receptors, autophagy), cause disorder of endocellular signal processes and pathological activation of cells of adaptive immunodefense of intestinal mucosa and conforming profile of cytokines with development of chronic inflammation which will be mediated: at Crohn's disease – by Th1-and Th17-cells, cytokines IL-12, interferon-Îł etc., at ulcerative colitis – by Th2-and NKT-cells, cytokines IL-4 and IL-3 in combination to incompetence of suppressor function of regulatory Đą-cells and their cytokines TGF-ÎČ (transforming growth factor) and IL-10.Conclusion. Investigations of experimental enterocolites and human IBD confirm immunologic hypothesis of pathogenesis: relation of their development to defects of innate and adaptive immune system

    Multi-detector computer tomography as effective method for Crohn's disease diagnostics

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    Aim of investigation. Improvement of diagnostics and efficacy of radiological methods of investigation by technique computer-tomography (CT) enterography at inflammatory bowel diseases.Material and methods. Original investigation was based on the data of comprehensive clinical and instrumental investigation of 111 patients with suspected Crohn's disease (CD). The set of tests included colonoscopy, abdominal US, CT-enterography, X-ray investigation of small intestine. Signs of CD were obtained by CT-enterography in 62 patients (55,9%), in all of these cases it was possible to establish localization of process, to estimate its spread and reveal complications.Results. Data of roentgenological and CT investigation comparative analysis were similar. Thus, CT-enterography technique of can be regarded either as alternative to X-ray investigation of the small intestine at CD diagnostics or important addition to diagnostic algorithm for this group of patients

    Genome analysis of E. coli isolated from Crohn's disease patients

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    © 2017 The Author(s). Background: Escherichia coli (E. coli) has been increasingly implicated in the pathogenesis of Crohn's disease (CD). The phylogeny of E. coli isolated from Crohn's disease patients (CDEC) was controversial, and while genotyping results suggested heterogeneity, the sequenced strains of E. coli from CD patients were closely related. Results: We performed the shotgun genome sequencing of 28 E. coli isolates from ten CD patients and compared genomes from these isolates with already published genomes of CD strains and other pathogenic and non-pathogenic strains. CDEC was shown to belong to A, B1, B2 and D phylogenetic groups. The plasmid and several operons from the reference CD-associated E. coli strain LF82 were demonstrated to be more often present in CDEC genomes belonging to different phylogenetic groups than in genomes of commensal strains. The operons include carbon-source induced invasion GimA island, prophage I, iron uptake operons I and II, capsular assembly pathogenetic island IV and propanediol and galactitol utilization operons. Conclusions: Our findings suggest that CDEC are phylogenetically diverse. However, some strains isolated from independent sources possess highly similar chromosome or plasmids. Though no CD-specific genes or functional domains were present in all CD-associated strains, some genes and operons are more often found in the genomes of CDEC than in commensal E. coli. They are principally linked to gut colonization and utilization of propanediol and other sugar alcohols

    Genetic diversity of Escherichia coli in gut microbiota of patients with Crohn's disease discovered using metagenomic and genomic analyses

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    © 2018 The Author(s). Background: Crohn's disease is associated with gut dysbiosis. Independent studies have shown an increase in the abundance of certain bacterial species, particularly Escherichia coli with the adherent-invasive pathotype, in the gut. The role of these species in this disease needs to be elucidated. Methods: We performed a metagenomic study investigating the gut microbiota of patients with Crohn's disease. A metagenomic reconstruction of the consensus genome content of the species was used to assess the genetic variability. Results: The abnormal shifts in the microbial community structures in Crohn's disease were heterogeneous among the patients. The metagenomic data suggested the existence of multiple E. coli strains within individual patients. We discovered that the genetic diversity of the species was high and that only a few samples manifested similarity to the adherent-invasive varieties. The other species demonstrated genetic diversity comparable to that observed in the healthy subjects. Our results were supported by a comparison of the sequenced genomes of isolates from the same microbiota samples and a meta-analysis of published gut metagenomes. Conclusions: The genomic diversity of Crohn's disease-associated E. coli within and among the patients paves the way towards an understanding of the microbial mechanisms underlying the onset and progression of the Crohn's disease and the development of new strategies for the prevention and treatment of this disease

    Ustekinumab as Induction and Maintenance Therapy for Crohn’s Disease

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    BACKGROUND Ustekinumab, a monoclonal antibody to the p40 subunit of interleukin-12 and inter-leukin-23, was evaluated as an intravenous induction therapy in two populations with moderately to severely active Crohn’s disease. Ustekinumab was also evaluated as subcutaneous maintenance therapy. METHODS We randomly assigned patients to receive a single intravenous dose of ustekinumab (either 130 mg or approximately 6 mg per kilogram of body weight) or placebo in two induction trials. The UNITI-1 trial included 741 patients who met the criteria for primary or secondary nonresponse to tumor necrosis factor (TNF) antagonists or had unacceptable side effects. The UNITI-2 trial included 628 patients in whom conventional therapy failed or unacceptable side effects occurred. Patients who completed these induction trials then participated in IM-UNITI, in which the 397 patients who had a response to ustekinumab were randomly assigned to receive subcutaneous maintenance injections of 90 mg of ustekinumab (either every 8 weeks or every 12 weeks) or placebo. The primary end point for the induction trials was a clinical response at week 6 (defined as a decrease from baseline in the Crohn’s Disease Activity Index [CDAI] score of ≄100 points or a CDAI score <150). The primary end point for the maintenance trial was remission at week 44 (CDAI score <150). RESULTS The rates of response at week 6 among patients receiving intravenous ustekinumab at a dose of either 130 mg or approximately 6 mg per kilogram were significantly higher than the rates among patients receiving placebo (in UNITI-1, 34.3%, 33.7%, and 21.5%, respectively, with P≀0.003 for both comparisons with placebo; in UNITI-2, 51.7%, 55.5%, and 28.7%, respectively, with P<0.001 for both doses). In the groups receiving maintenance doses of ustekinumab every 8 weeks or every 12 weeks, 53.1% and 48.8%, respectively, were in remission at week 44, as compared with 35.9% of those receiving placebo (P = 0.005 and P = 0.04, respectively). Within each trial, adverse-event rates were similar among treatment groups. CONCLUSIONS Among patients with moderately to severely active Crohn’s disease, those receiving intravenous ustekinumab had a significantly higher rate of response than did those receiving placebo. Subcutaneous ustekinumab maintained remission in patients who had a clinical response to induction therapy. (Funded by Janssen Research and Development; ClinicalTrials.gov numbers, NCT01369329, NCT01369342, and NCT01369355.
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