742 research outputs found
Recommended from our members
Statin intensity and postoperative mortality following open repair of intact abdominal aortic aneurysm.
BackgroundThere is a lack of evidence for the association between intensive statin therapy and outcomes following vascular surgery. The aim of this study was to evaluate the association between perioperative statin intensity and in-hospital mortality following open abdominal aortic aneurysm (AAA) repair.MethodsPatients undergoing open AAA repair between 2009 and 2015 were identified from the Premier Healthcare Database. Statin use was classified into low, moderate and high intensity, based on American College of Cardiology/American Heart Association guidelines. Supratherapeutic intensity was defined as doses higher than the recommended guidelines. Multivariable logistic regression analyses were undertaken to assess the association between statin intensity and postoperative major adverse events and in-hospital mortality.ResultsOf 6497 patients undergoing open AAA repair, 3217 (49·5 per cent) received perioperative statin. Statin users were more likely to present with three or more co-morbidities than non-users (26·5 versus 21·8 per cent; P < 0·001). Unadjusted postoperative mortality was significantly lower in statin users (2·6 versus 6·3 per cent; P < 0·001); however, there was no difference in the risk of developing major adverse events. Multivariable analysis showed that statin use was associated with lower odds of death (odds ratio 0·41, 95 per cent c.i. 0·31 to 0·54). Moderate, high and supratherapeutic statin intensities were not associated with lower odds of death or major adverse events compared with low-intensity statin therapy.ConclusionStatin use is associated with lower odds of death in hospital following open AAA repair. High-intensity statins were not associated with lower morbidity or mortality
H∞ control for networked systems with random communication delays
Copyright [2006] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.This note is concerned with a new controller design problem for networked systems with random communication delays. Two kinds of random delays are simultaneously considered: i) from the controller to the plant, and ii) from the sensor to the controller, via a limited bandwidth communication channel. The random delays are modeled as a linear function of the stochastic variable satisfying Bernoulli random binary distribution. The observer-based controller is designed to exponentially stabilize the networked system in the sense of mean square, and also achieve the prescribed H∞ disturbance attenuation level. The addressed controller design problem is transformed to an auxiliary convex optimization problem, which can be solved by a linear matrix inequality (LMI) approach. An illustrative example is provided to show the applicability of the proposed method
Robust H∞ control with missing measurements and time delays
Copyright [2007] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.In this technical note, the robust control problem is investigated for a class of stochastic uncertain discrete time-delay systems with missing measurements. The parameter uncertainties enter into the state matrices, and the missing measurements are described by a binary switching sequence satisfying a conditional probability distribution. The purpose of the problem is to design a full-order dynamic feedback controller such that, for all possible missing observations and admissible parameter uncertainties, the closed-loop system is asymptotically mean-square stable and satisfies the prescribed performance constraint. Delay-dependent conditions are derived under which the desired solution exists, and the controller parameters are designed by solving a linear matrix inequality (LMI). A numerical example is provided to illustrate the usefulness of the proposed design method
The Strategic Adaptation of Chinese-Manadonese in the Reform Era
This article is a further discussion of previous research which is a pilot project to observe patterns of cultural interaction within the Chinese community in Indonesia as a part of a project to understand the phenomenon of the multicultural society during the New Order Era. The specific target of this research is to study the socio-cultural interactions within the Chinese community in Manado during the Reform Era (2000-2014). This research aims to study the strategic adaptation of the Chinese in Manado, by analysing the obstacles and opportunities in their socio-cultural interaction with the locals. Using data from field research and literature studies, this qualitative research applies an ethnographic approach by observing various actions in their socio-cultural interactions
Tahapan Partisipasi Masyarakat Dalam Program Pembangunan Infrastruktur Perdesaan (PPIP) Di Desa Dungaliyo Kecamatan Dungaliyo Kabupaten Gorontalo
Ketidakpekaan pemerintah terhadap aspirasi masyarakat serta minimnya partisipasi masyarakat dalam proses pembangunan tersebut, dapat mengakibatkan masyarakat kurang merasa memiliki (sense of belonging) terhadap hasil-hasil pembangunan, bahkan lebih lanjut menimbulkan akibat yang fatal dalam arti politis, yaitu memunculkan sikap apatis, frustasi, kecemburuan sosial dan ketidakpercayaan kepada pemerintah, dimana pada puncaknya sering menimbulkan ketegangan yang serius antara pemerintah dan rakyat, yang terlihat dari banyaknya contoh kasus yang menunjukkan masyarakat menentang upaya pembangunan yang dilakukan pemerintah, seperti: 1) Program Pembangunan Infrastruktur Perdesaan (PPIP) di Desa Dungaliyo telah memberikan ruang bagi masyarakat untuk berkreasi melalui prinsip PPIP yakni Dari, Oleh dan Untuk Masyarakat, 2) Kehadiran masyarakat dalam tahapan perencanaan lebih berfungsi sebagai pendengar, 3) Kendala yang ditemukan adalah tingkat pendidikan masyarakat penerima, belum terciptanya suasana dan kondisi yang mendukung bagi partisipasi masyarakat, kejenuhan akibat proses yang panjang. Sehingga perlu proses sosialisasi yang lebih mendalam bagi masyarakat, sehingga masyarakat lebih dapat menemukan atau mengenali masalah berdasarkan pada kebutuhan masyarakat, 4) Para elit desa dan pelaku PPIP harus memberikan pemahaman dan bimbingan secara kontinyu dalam setiap kesempatan kepada masyarakat, dan 5) Hendaknya senantiasa memperhatikan kondisi sosial masyarakat setempat misalnya: memilih waktu yang tepat untuk menyelenggarakan forum-forum musyawarah
Gambaran Tingkat Ketersediaan Pangan Keluarga Dan Status Gizi Balita Pada Keluarga Miskin Di Desa Lambaro Skep Kecamatan Kuta Alam Kota Banda Aceh
Pengaruh Fasilitas Belajar terhadap Hasil Belajar Siswa di Sman 1 Teluk Kuantan Kecamatan Kuantan Tengah Kabupaten Kuantan Singingi
Abstrack : The objectives of this research were to know the effect of learning facilities that used by student of class X, dan XI IPS in SMAN 1 Teluk Kuantan Kecamatan Kuantan Tengah Kabupaten Kuantan Singingi. The population of this research was the class X dan XI IPS SMAN 1 Teluk Kuantan amount 209 people and the sample amount 137 people. The collected data used questionnaire and documentation. Data analysis of this research used simle linier regression. Research result based on simple linier regression showed that the using of learning facilities influence on student learning outcomes of class X dan XI IPS in SMAN 1 Teluk Kuantan this can be seen from a constant value (a) of 46,000 and the value coefisien regression (b) of 0,351 with a regresiion equation 46,000 + 0,351. According the calculation of R (R squer change) obtained a value of 0,392. It means that the contribution of the influence of the use learning facilities on learning outcomes by 39,2%
Analisis Efektivitas Pengelolaan Piutang PT Suzuki Finance Indonesia (Sfi) Pekanbaru
Receivables arise because of the system of credit sales. Accounts receivable is an asset that is quite material. Therefore, it is necessary that an effective management of accounts receivable and efficiently so that the amount of funds invested in the accounts in accordance with the level of ability of the company so as not to interrupt the flow of cash. In the end, receivables management implemented the company will look at financial ratios pertaining to receivables acquired. PT Suzuki Finance Indonesia (SFI) Pekanbaru is a leasing company engaged in official financing for the brand Suzuki motorcycle. This study aims to measure how effective the company in managing its resources. The method used is quantitative descriptive analysis method, to get a clearer picture and detailed based on the data and information obtained. The data used is secondary data, sales data of credit, consumer finance data and the data of bad debts of the company. The results showed PT Suzuki Finance Indonesia (SFI) Pekanbaru is still not optimal in managing its accounts receivable. PT SFI Branch Pekanbaru should make improvements or changes to the strategy in collecting accounts receivable in order to collect the receivable is less than the maturity and reduce the amount of bad debts of the company
- …