417 research outputs found

    Model Support Vector Machine Berbasis Particle Swarm Optimization Untuk Prediksi Penyakit Liver

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    Hati adalah organ yang paling besar dan penting bagi tubuh kita. Kita tidak bisa hidup tanpa hati. Penyakit hati merupakan peradangan yang disebabkan oleh infeksi virus, bakteri atau bahan-bahan beracun sehingga hati tidak dapat melakukan fungsinya dengan baik serta tidak mudah ditemukan dalam tahap awal dalam mendiagnosis penyakit hati. Penanganan pasien dengan penyakit hati pada tahap awal akan memperpanjang hidup pasien. Banyak penelitian menggunakan model Support Vector Machine untuk memprediksi penyakit hati tetapi nilai akurasi yang dihasilkan kurang akurat. Dalam penelitian yang dilakukan ini model algoritma support vector machine dan model algoritma support vector machine berbasiskan particle swarm optimization untuk mendapatkan aturan untuk memprediksi penyakit liver dan memberikan nilai yang lebih akurat dari akurasi. Setelah pengujian dengan dua model support vector machine dan support vector machine berbasiskan particle swarm optimization, mendapatkan hasil dari model algoritma support vector machine nilai akurasinya 71,36% dan nilai akurasi dari AUC sebesar 0.500, sedangkan pengujian menggunakan algoritma suppport vector machine berbasiskan particle swarm optimization mendapatkan hasil nilai akurasinya sebesar 77,36% dan nilai AUC 0.661 untuk tingkat diagnosa klasifikasi yang baik. Kedua metode ini memiliki berbagai tingkat akurasi sebanyak 6,00% dan selisih nilai AUC 0.16

    Death rates and causes among admitted neonates in Children Welfare Teaching Hospital – Medical city –Baghdad (2000- 2004)

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    Background: The neonatal deaths account for two-third of all deaths in the first year of life, and 40% of under-five mortality. Extreme prematurity, respiratory distress syndrome , neonatal infections , and congenital malformations are among the common causes of neonatal deaths. Methods: We retrospectively studied 668 neonates who died over 5 years period from first of Jan. 2000 to the end of Dec. 2004 in neonatal care unit of children Welfare Teaching Hospital-medical city, by obtaining data from reviewing their medical records and death certificates. Results: The death rate in neonates admitted to SCBU (special Care baby Unit) during the period of study was (10.7%), male constituted 432 (64.7%) and female 236 (35.3%) with male to female ratio 1.8:1. The major causes of death were congenital malformations (41.6%), neonatal infections (33.4%),and prematurity (10.3%). Conclusions: There was no decline in the neonatal death rate in our hospital especially from sepsis and prematurity and low birth weight. Death due to late onset sepsis was lower than that due to early onset sepsis .There was a significant increase in the death from congenital malformations

    THE POSSIBLE CARDIOPROTECTIVE EFFECTS OF DIFFERENT FRACTIONS OF ARTICHOKE EXTRACTS AGAINST 5-FU INDUCED CARDIOTOXICITY IN ALBINO RATS

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    Objective: The present study aimed to evaluate the cardioprotective effects of ethyl acetate and methanolartichoke extracts(Cynara scolymus L.) against 5-Flurouracil (5-FU) induced cardiotoxicity in rats.Methods: Thirty-six albino rats were divided randomly and equallyin to six groups (each group with 6 rats): I, negative control, received (2 ml/kg/d)of dimethyl sulfoxide (DMSO) orally for 30 successive d; II, positive control, received (2 ml/kg/d) of (DMSO) orally for 30 successive d, and subsequently administered a single dose of 5-FU (150 mg/kg) by intraperitoneal injection on 27thd in assossiation with DSMO; III and V, received (200 mg/kg/d) of oral methanol and ethyl acetate artichoke extracts respectivelyfor 30 successive d; V and VI, received(200 mg/kg/d) of oral methanol and ethyl acetate artichoke extracts respectively for 30 successive d,with a subsequently received single dose of 5-FU (150 mg/kg) by intraperitoneal injection on 27th d of the experiment.Results: Prophylactic treatment of ethyl acetate and methanol artichoke extracts significantly attenuates the increased level of serum cardiac troponin T (CTn-T) and tumor necrosis factor-a(TNF-a)caused by 5-FU-induced cardiotoxicity in experimental albino rats while it increases the serum level of total antioxidant capacity (T-AOC).Conclusion: Results of the present study suggest that methanol and ethyl acetate artichoke extracts may be an effective modulator in mitigating 5-FU induced cardiotoxicity.Ă‚

    Penerapan Metode Waterfall Pada Sistem Informasi Wedding Organizer Lili Vicky Decoration

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    Penelitian ini merancang suatu sistem pemesanan wedding organizer berbasis web yang digunakan untukmenawarkan dan memberikan informasi dengan cepat dan mudah. Tujuan dari pembuatan sistem informasiberbasis web wedding organizer adalah untuk memperkenalkan kepada masyarakat tentang profil dariwedding organizer yaitu Lili Vicky Decoration sehingga cakupan pasar akan semakin luas, pembeli akanlebih mudah mengakses web dan berbelanja tanpa terbatas ruang dan waktu. Metode pembuatan Penelitianini yaitu menggunanakan pengembangan perangkat lunak waterfall dan pemodelan UML yangmenggunakan bahasa pemprograman php dan databasenya memakai mysql. Teknik pengumpulan datadengan observasi dan study pustaka ( Library Research ).sistem informasi wedding organizer yang barudiharapkan membuat Perusahaan mampu berkembang dengan baik dari sisi pemasaran

    3-Dimensional Nonlinear Finite Element Analysis of both Thermal and Mechanical Response of Friction Stir Welded 2024-T3 Aluminum Plates

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    This paper attempt to predict numerically both the temperature distribution during friction stir welding process of 2024-T3 aluminium plates and the resulting thermal residual stress by sequentially coupling the thermal histories into the mechanical model assuming elastic-perfectly plastic metal behaviour in accordance with the classical metal plasticity theory. The commercial code ANSYS 14 is used in Thermomechanical modelling of friction stir welding of aluminium 2024-T3.  Heat input from the tool shoulder and the tool pin are considered in the finite element analysis model. A moving heat source with a heat distribution simulating the heat generated from the friction between the tool shoulder and the work piece is used in the heat transfer analysis The longitudinal stress components are found to be the highest tensile stress components and correspond to the temperature profiles within the heat affected zone of the weld. The through-thickness (normal) stresses are found to be negligible compared with the longitudinal and transverse stress components. To facilitate simulation runs of the proposed model an APDL (ANSYS Parametric Design Language) code is developed to extract the thermal history and the subsequent thermal stresses. The effects of various heat transfer conditions at the bottom surface of the workpiece, thermal contact conductances at the work-piece and the backing plate interface on the thermal profile in the weld material are taken into considerations. The results of the simulation are compared to other published experimental results and the agreement was good. Keywords: Friction stir welding, Finite element, Three dimensional modeling, Thermal stresses

    Neonatal Birth Traumas: Risk factors and types

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    Background: Birth trauma is defined as injury to neonates resulting from mechanical forces (such as compression or traction) during the process of birth. Birth injury is used to denote avoidable and unavoidable mechanical and hypoxic- ischemic injury incurred by neonates during labor and delivery. Maternal, labor and infant factors can predispose to birth traumas. Many types of birth traumas can be found including intra and extra cranial, spinal, peripheral nerves, fractures and visceral. Patients and methods: A cross sectional study was done on 200 babies (100 babies for the study group and 100 babies for the control group), admitted to special care baby unit of Baghdad Teaching Hospital, during the period between 1st of October 2007 to the 30th of March 2008. Results: There was an increased percentage of birth trauma in preterm babies, large birth weight, mothers who were primigravida, had history of contracted pelvis, diabetes mellitus, prolong second stage of labor, abnormal fetal presentation, and shoulder dystocia. Trauma of cranium was the most common type of birth trauma, of which caput succedaneum (68%) was the most common one. Conclusions: Birth trauma is still a significant problem in this maternity ward causing some morbidity. The significant risk factors were macrosomia, prematurity and multiple pregnancies, primigravida, chronic maternal illness like diabetes mellitus, history of pelvic anomalies or contracted pelvis, prolonged labor especially the second stage, abnormal fetal presentation and shoulder dystocia. So we recommend assessment of the fetal weight, mother pelvis capacity and presentation before delivery, so that macrosomic fetus might be delivered by cesarean section, and prevent premature delivery, and better use of investigations like ultrasound,x-ray,CT scan for early diagnosis and further management of birth trauma

    Investigation of water sorption and aluminum releases from high viscosity and resin modified glass ionomer

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    High viscosity glass ionomer cement (HVGIC) and resin-modified glass ionomer cement (RMGIC) have recently been clinically preferred thanks to their numerous advantages. However, initial moisture contamination has a negative effect on the mechanical and physical properties of these cements. The aim of this study was in vitro of HVGICs and RMGICs, with and without surface protection, on water sorption, solubility and release of aluminum. In this study, as HVGICs; Equia Forte, IonoStar Plus, Riva Self Cure; as RMCIS, Ionolux and Riva Light Cure; and as control, Z250 universal composite was used. Equia coat, Voco varnish and Riva coat were chosen as surface protective. Water sorption and solubility levels of the samples were measured according to ISO 4049:2009. Al levels released from samples were determined by graphite furnace atomic absorption spectroscopy (GFAAS) for 7, 14 and 21 days. Statistical evaluation of the results was made using one-way variance analysis (ANOVA) and Tukey post-hoc test (p<0.05). RMGICs from restorative materials showed more water absorption than HVGICs, but no differences in solubility. Among the materials tested, the water absorption values of the HVGIC and RMGIC materials without surface protection were higher than those with the surface protection (p<0.001). It was determined that the Al release of HVGIC and RMGIC groups with the surface protection were lower in all time periods than the groups without surface protection (p<0.001). The application of surface protection effectively reduced water sorption and Al release from HVGICs and RMGICs

    Immersive competence and immersive literacy: Exploring how users learn about immersive experiences

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    While immersive experiences mediated through near-eye displays are still a relatively immature medium, there are millions of consumer devices in use. The level of awareness of the forms of the interface and media will vary enormously across the potential audience. Users might own personal devices or might encounter immersive systems in various venues. We introduce the term immersive competence to refer to the general practical knowledge and skills that users accumulate about how typical immersive interfaces work—the ways in which buttons are used, main locomotion techniques, etc. We then introduce the term immersive literacy to refer to awareness of how immersive interfaces are unique, when they might be appropriate, typical forms of media, etc. We sketch out how users develop competence and literacy with immersive media, and then highlight various open questions that are raised

    Incidence and risk factors of late right heart failure in chronic mechanical circulatory support

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    BACKGROUND: Late right heart failure (LRHF) is a common complication during long-term left ventricular assist device (LVAD) support. We aimed to identify risk factors for LRHF after LVAD implantation. METHODS: Patients undergoing primary LVAD implantation between 2006 and 2019 and surviving the perioperative period were included for this study (n = 261). Univariate Cox proportional hazards analysis was used to assess the association of clinical covariates and LRHF, stratified for device type. Variables with p < 0.10 entered the multivariable model. In a subset of patients with complete echocardiography or right catheterization data, this multivariable model was extended. Postoperative cardiopulmonary exercise test data were compared in patients with and without LRHF. RESULTS: Nineteen percentage of patients suffered from LRHF after a median of 12 months, of which 67% required hospitalization. A history of atrial fibrillation (AF) (HR: 2.06 [1.08–3.93], p = 0.029), a higher preoperative body mass index (BMI) (HR: 1.07 [1.01–1.13], p = 0.023), and intensive care unit (ICU) duration (HR: 1.03 [1.00–1.06], p = 0.025) were independent predictors of LHRF in the multivariable model. A significant relation between the severity of tricuspid regurgitation (TR) and LRHF (HR: 1.91 [1.13–3.21], p = 0.016) was found in patients with echocardiographic data. Patients with LRHF demonstrated a lower maximal workload and peak VO2 at 6 months postoperatively. CONCLUSION: A history of AF, BMI, and longer ICU stay may help identify patients at high risk for LRHF. Severity of TR was significantly related to LRHF in a subset of patient
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