127 research outputs found
Analisis Kapasitas Air Side Rencana Pengembangan Bandar Udara Internasional Ahmad Yani Semarang
Ahmad Yani Airport in Semarang is one of the International airport in the Province of Central Java . International airport status is used because there is a flight plan to foreign country and Ahmad Yani Airport worthy to serve the airlines. However, the facilities and services that exist not suitable for International-class airport. Therefore, these airports continue to be developed in order to serve the demand for overseas flight, both domestic and International flights increased from year to year. It can be from Semarang and head to Semarang. The development includes the development of the infrastructure of the airport land and air sides which are divided into two phases. With the completion of the first phase of development, Ahmad Yani Airport will have a wider terminal in the North of runway, ample parking space, covering an area of 61.344 m2 apron and two taxiways. Development of second phase will make Ahmad Yani Airport has an area of 78.313 m2 apron that can accommodate 12 Boeing 737-900 aircraft class and 8 pieces taxiways, 2 pieces exit taxiways and 1 piece parallel taxiway. This Final Thesis will analyze the air side of the Ahmad Yani airport that has runway formed, taxiway and apron at the existing condition, the development of the first phase and the second phase of development. This analysis will have predicted number of passengers in the plan of year which will then be converted into the number of aircraft at busy times. Results of the predicted number of aircraft will be on an analysis for the air side capacity of the Ahmad Yani Airport in the development plan that has been done by Ahmad Yani airport, so that it will be known the air side ability of the Ahmad Yani Airport to the demand in the plan year. This analysis refers to the rules that set up by FAA. Results of the analysis showed that when the condition of existing air side in the form of runway, taxiways are still able to serve the demand of flight but the capacity of the apron are not able to serve so for prediction of the next 5 years in the first phase of development there will be over capacity. However, with the development at the Ahmad Yani Airport, aircraft servicing predictions for the next 5 to 10 years can already be served by a taxiway and apron but rapid exit taxiway should be built for runway's component, so that it can increase runway capacity at peak hours
Pengembangan Inovasi Produksi Pakan Alternative Melalui Teknik Fermentasi di Aceh Jaya
Sebanyak 65% penduduk Desa Jambo Masi, Aceh Jaya bermata pencaharian sebagai petani tambak dan peternak. Namun, petani tambak dan peternak masih terkendala dengan mahalnya harga pakan yang mempengaruhi keuntungan hasil panen masyarakat. Berdasarkan permasalahan tersebut, peneliti yang terdiri dari mahasiswa/i KKN Melayu Serumpun di Desa Jambo Masi, Aceh Jaya melakukan upaya produksi pakan alternative dari sumber daya alam yang ada di desa tersebut. Pakan alternative ini dapat diproduksi dengan harga murah dan diharapkan nantinya dapat menjadi salah satu produk unggulan Desa Jambo Masi. Sebagai bagian dari kegiatan Kuliah Kerja Nyata, metode yang digunakan dalam kegiatan ini adalah parcipatory action research. Upaya pengumpulan data dilakukan melalui transect mapping, diskusi dengan pihak terkait dan masyarakat serta studi literatur. Hasil kegiatan menunjukkan bahwa pembuatan pakan alternative terhadap usaha tambak dan ternak sangat membantu perekonomian masyarakat. Masyarakat juga mendukung kegiatan ini karena pembuatan pakan alternative ini menggunakan bahan yang ada di alam dan tidak menggunakan campuran bahan kimia
Cardiovascular magnetic resonance parameters of atherosclerotic plaque burden improve discrimination of prior major adverse cardiovascular events
<p>Abstract</p> <p>Aims</p> <p>Patients with prior major cardiovascular or cerebrovascular events (MACE) are more likely to have future recurrent events independent of traditional cardiovascular disease risk factors. The purpose of this study was to determine if patients with traditional risk factors and prior MACE had increased cardiovascular magnetic resonance (CMR) plaque burden measures compared to patients with risk factors but no prior events.</p> <p>Methods and Results</p> <p>Black blood carotid and thoracic aorta images were obtained from 195 patients using a rapid extended coverage turbo spin echo sequence. CMR measures of plaque burden were obtained by tracing lumen and outer vessel wall contours. Patients with prior MACE had significantly higher MR plaque burden (wall thickness, wall area and normalized wall index) in carotids and thoracic aorta compared to those without prior MACE (Wall thickness carotids: 1.03 ± 0.03 vs. 0.93± 0.03, p = 0.001; SD wall thickness carotids: 0.137 ± 0.0008 vs. 0.102 ± 0.0004, p < 0.001; wall thickness aorta: 1.63 ± 0.10 vs. 1.50 ± 0.04, p = 0.009; SD wall thickness aorta: 0.186 ± 0.035 vs. 0.139 ± 0.012, p = 0.009 respectively). Plaque burden (wall thickness) and plaque eccentricity (standard deviation of wall thickness) of carotid arteries were associated with prior MACE after adjustment for age, sex, and traditional risk factors. Area under ROC curve (AUC) for discriminating prior MACE improved by adding plaque eccentricity to models incorporating age, sex, and traditional CVD risk factors as model inputs (AUC = 0.79, p = 0.05).</p> <p>Conclusion</p> <p>A greater plaque burden and plaque eccentricity is prevalent among patients with prior MACE.</p
Symptomatic Acute Hepatitis C in Egypt: Diagnosis, Spontaneous Viral Clearance, and Delayed Treatment with 12 Weeks of Pegylated Interferon Alfa-2a
The aim of this study was to estimate the proportion of spontaneous viral clearance (SVC) after symptomatic acute hepatitis C and to evaluate the efficacy of 12 weeks of pegylated interferon alfa-2a in patients who did not clear the virus spontaneously.Patients with symptomatic acute hepatitis C were recruited from two "fever hospitals" in Cairo, Egypt. Patients still viremic three months after the onset of symptoms were considered for treatment with 12 weeks of pegylated interferon alfa-2a (180 microg/week).Between May 2002 and February 2006, 2243 adult patients with acute hepatitis were enrolled in the study. The SVC rate among 117 patients with acute hepatitis C was 33.8% (95%CI [25.9%-43.2%]) at three months and 41.5% (95%CI [33.0%-51.2%]) at six months. The sustained virological response (SVR) rate among the 17 patients who started treatment 4-6 months after onset of symptoms was 15/17 = 88.2% (95%CI [63.6%-98.5%]).Spontaneous viral clearance was high (41.5% six months after the onset of symptoms) in this population with symptomatic acute hepatitis C. Allowing time for spontaneous clearance should be considered before treatment is initiated for symptomatic acute hepatitis C
Dental erosive wear and salivary flow rate in physically active young adults
Background
Little attention has been directed towards identifying the relationship between physical exercise, dental erosive wear and salivary secretion. The study aimed i) to describe the prevalence and severity of dental erosive wear among a group of physically active young adults, ii) to describe the patterns of dietary consumption and lifestyle among these individuals and iii) to study possible effect of exercise on salivary flow rate.
Methods
Young members (age range 18-32 years) of a fitness-centre were invited to participate in the study. Inclusion criteria were healthy young adults training hard at least twice a week. A non-exercising comparison group was selected from an ongoing study among 18-year-olds. Two hundred and twenty participants accepted an intraoral examination and completed a questionnaire. Seventy of the exercising participants provided saliva samples. The examination was performed at the fitness-centre or at a dental clinic (comparison group), using tested erosive wear system (VEDE). Saliva sampling (unstimulated and stimulated) was performed before and after exercise. Occlusal surfaces of the first molars in both jaws and the labial and palatal surfaces of the upper incisors and canines were selected as index teeth.
Results
Dental erosive wear was registered in 64% of the exercising participants, more often in the older age group, and in 20% of the comparison group. Enamel lesions were most observed in the upper central incisors (33%); dentine lesions in lower first molar (27%). One fourth of the participants had erosive wear into dentine, significantly more in males than in females (p = 0.047). More participants with erosive wear had decreased salivary flow during exercise compared with the non-erosion group (p < 0.01). The stimulated salivary flow rate was in the lower rage (≤ 1 ml/min) among more than one third of the participants, and more erosive lesions were registered than in subjects with higher flow rates (p < 0.01).
Conclusion
The study showed that a high proportion of physically active young adults have erosive lesions and indicate that hard exercise and decreased stimulated salivary flow rate may be associated with such wear
Carotid plaque regression following 6-month statin therapy assessed by 3T cardiovascular magnetic resonance: comparison with ultrasound intima media thickness
<p>Abstract</p> <p>Background</p> <p>Cardiovascular magnetic resonance (CMR) allows volumetric carotid plaque measurement that has advantage over 2-dimensional ultrasound (US) intima-media thickness (IMT) in evaluating treatment response. We tested the hypothesis that 6-month statin treatment in patients with carotid plaque will lead to plaque regression when measured by 3 Tesla CMR but not by IMT.</p> <p>Methods</p> <p>Twenty-six subjects (67 ± 2 years, 7 females) with known carotid plaque (> 1.1 mm) and coronary or cerebrovascular atherosclerotic disease underwent 3T CMR (T1, T2, proton density and time of flight sequences) and US at baseline and following 6 months of statin therapy (6 had initiation, 7 had increase and 13 had maintenance of statin dosing). CMR plaque volume (PV) was measured in the region 12 mm below and up to 12 mm above carotid flow divider using software. Mean posterior IMT in the same region was measured. Baseline and 6-month CMR PV and US IMT were compared. Change in lipid rich/necrotic core (LR/NC) and calcification plaque components from CMR were related to change in PV.</p> <p>Results</p> <p>Low-density lipoprotein cholesterol decreased (86 ± 6 to 74 ± 4 mg/dL, p = 0.046). CMR PV decreased 5.8 ± 2% (1036 ± 59 to 976 ± 65 mm<sup>3</sup>, p = 0.018). Mean IMT was unchanged (1.12 ± 0.06 vs. 1.14 ± 0.06 mm, p = NS). Patients with initiation or increase of statins had -8.8 ± 2.8% PV change (p = 0.001) while patients with maintenance of statin dosing had -2.7 ± 3% change in PV (p = NS). There was circumferential heterogeneity in CMR plaque thickness with greatest thickness in the posterior carotid artery, in the region opposite the flow divider. Similarly there was circumferential regional difference in <it>change </it>of plaque thickness with significant plaque regression in the anterior carotid region in region of the flow divider. Change in LR/NC (R = 0.62, p = 0.006) and calcification (R = 0.45, p = 0.03) correlated with PV change.</p> <p>Conclusions</p> <p>Six month statin therapy in patients with carotid plaque led to reduced plaque volume by 3T CMR, but ultrasound posterior IMT did not show any change. The heterogeneous spatial distribution of plaque and regional differences in magnitude of plaque regression may explain the difference in findings and support volumetric measurement of plaque. 3T CMR has potential advantage over ultrasound IMT to assess treatment response in individuals and may allow reduced sample size, duration and cost of clinical trials of plaque regression.</p
Awareness and knowledge of dental erosion among Yemeni dental professionals and students
Injection Drug Use Is a Risk Factor for HCV Infection in Urban Egypt
OBJECTIVE: To identify current risk factors for hepatitis C virus (HCV) transmission in Greater Cairo. DESIGN AND SETTING: A 1:1 matched case-control study was conducted comparing incident acute symptomatic hepatitis C patients in two "fever" hospitals of Greater Cairo with two control groups: household members of the cases and acute hepatitis A patients diagnosed at the same hospitals. Controls were matched on the same age and sex to cases and were all anti-HCV antibody negative. Iatrogenic, community and household exposures to HCV in the one to six months before symptoms onset for cases, and date of interview for controls, were exhaustively assessed. RESULTS: From 2002 to 2007, 94 definite acute symptomatic HCV cases and 188 controls were enrolled in the study. In multivariate analysis, intravenous injections (OR = 5.0; 95% CI = 1.2-20.2), medical stitches (OR = 4.2; 95% CI = 1.6-11.3), injection drug use (IDU) (OR = 7.9; 95% CI = 1.4-43.5), recent marriage (OR = 3.3; 95% CI = 1.1-9.9) and illiteracy (OR = 3.9; 95% CI = 1.8-8.5) were independently associated with an increased HCV risk. CONCLUSION: In urban Cairo, invasive health care procedures remain a source of HCV transmission and IDU is an emerging risk factor. Strict application of standard precautions during health care is a priority. Implementation of comprehensive infection prevention programs for IDU should be considered
Observation of weak neutral current neutrino production of
Observation of \jpsi production by neutrinos in the calorimeter of the CHORUS detector exposed to the CERN SPS wide-band \numu beam is reported. A spectrum-averaged cross-section = (6.3 3.0) is obtained for 20 GeV 200 GeV. The data are compared with the theoretical model based on the QCD Z-gluon fusion mechanism
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