Vibration Mitigation of Railway Bridge Using Magnetorheological Damper

The purpose of this study is to analyze the railway bridge vibrations and control their negative effects through semi-active magnetorheological (MR) damper. Dynamic analysis of a railway bridge subjected to the moving load is performed. The real structural parameters are used, and the six-axle train is simulated as moving loads. The railway bridge is modeled as Euler-Bernoulli beam theory, and it is discretized through Galerkin method. To mitigate the bridge vibrations, MR damper with a fuzzy logic-based controller (FLC) is positioned at the ends of the bridge. The simulations of the system are performed by MatLab software. Finally, the results are examined both in the time and frequency domains

The negative prognostic impact of bone metastasis with a tumor mass

OBJECTIVE: Typically, bone metastasis causes osteolytic and osteoblastic lesions resulting from the interactions of tumor cells with osteoclasts and osteoblasts. In addition to these interactions, tumor tissues may grow inside bones and cause mass lesions. In the present study, we aimed to demonstrate the negative impact of a tumor mass in a large cohort of patients with bone metastatic cancer. METHODS: Data from 335 patients with bone metastases were retrospectively reviewed. For the analysis, all patients were divided into three subgroups with respect to the type of bone metastasis: osteolytic, osteoblastic, or mixed. The patients were subsequently categorized as having bone metastasis with or without a tumor mass, and statistically significant differences in median survival and 2-year overall survival were observed between these patients (the median survival and 2-year overall survival were respectively 3 months and 16% in patients with a tumor mass and 11 months and 26% in patients without a tumor mass;

Evaulation of the atlantoaxial subluxations ın rheumatoid arthritis by clinical and radiological methods ın our department

Amaç: Çalışmamızda romatoid artritli 30 hastada direkt grafi, bilgisayarlı tomografi ve magnetik rezonans görüntüleme yöntemlerinden yararlanılarak atlantoaksiyel eklem sublüksasyonun laboratuvar ve klinik bulgularla olan ilişkisi araştırıldı. Yöntem ve Bulgular Gerek laboratuvar gerekse de muayene bulgularının atlantoaksiyel eklem sublüksasyon risk tespitinde yada varlığında anlamlı farklılık ortaya koymadığı saptandı. Sonuç: Atlantoaksiyel eklem sublüksasyonun radyolojik olarak tespitinde direkt grafi, bilgisayarlı tomografi ve manyetik rezonans görüntüleme yöntemleri arasında istatistiksel olarak anlamlı fark saptanmamış olsa da koronal planda kesitlerin de alındığı manyetik rezonans görüntüleme, multiplanar özelliği nedeniyle atlantoaksiyel eklem sublüksasyon tespitinde öncelikli bir yer tutmaktadır.Objectiveand Methods: In this study, atlantoaxial subluxations and their relationship with laboratory and clinical signs of rheumatoid arthritis were investigated by plain radiography, computed tomography, and magnetic resonance imaging. Results: We found that neither immulogical data nor clinical findings were predictive factors in the assessment of atlantoaxial subluxations. Conclusions: Magnetic resonance imaging including coronal plane sections appears to be the modality of choice for the diagnosis of atlantoaxial subluxations because of its ability to acquire direct multiplanar images

Penetrating anterior abdominal stab injury

AMAÇ: Acil cerrahi servislerinde sık karşılaşılan karına penetre delici kesici alet yaralanmalarında (DKAY) tedavi yaklaşımı, zaman içinde rutin eksploratis laparotomiden selektif konservatif yaklaşıma doğru değişim göstermiştir. Konservatif yaklaşımda fizik muayene, laboratuar ve görüntüleme sonuçlarına göre laparotomi kararı verilir. Çalışmamızın amacı karın anterior bölgesine penetre DKAY'lı hastalarımızın takip ve tedavi sonuçlarının irdelenmesidir. YÖNTEMLER: Nisan 2009 - Kasım 2011 tarihleri arasında karın anterior bölgesine penetre DKAY' sı olan ve acil cerrahi ünitesine başvuran hastalar prospektif olarak incelendi. Hemodinamisi stabil, akut karın bulguları olmayan hastalar konservatif tedaviye alınırken, hemodinamisi instabil ve/veya akut karın bulguları olan hastalara acil laparotomi yapıldı. Yaralanmanın lokalizasyonu, zamanlaması (acil,erken,geç), laparotomi bulguları (terapötik,nonterapötik,negatif) ve tedavi sonuçları değerlendirildi. BULGULAR: Toplam 85 hasta çalışmaya dahil edildi. İlk değerlendirme sonucunda hemodinamisi stabil olan ve peritonit bulguları olmayan 80 hasta konservatif tedaviye (grup 1) alınırken, 5 hastaya acil laparotomi (grup 2) uygulandı. Grup 1'de 11 hastaya erken, 5 hastaya geç dönemde laparotomi yapıldı. Bu grupda ki hastaların 13'ünde laparotomi terapötik, 2'sinde nonterapötik ve 1'inde negatif idi. Grup 2'de laparotomi endikasyonları; 3 hastada akut batın, 1 hastada hemodinamik instabilite ve 1 hastada organ eviserasyonu idi. Bu grup da 4 terapötik, 1 negatif laparotomi yapılırken bir hasta peroperatif exitus oldu. SONUÇ: Bu çalışmada 64 hastaya (% 75) konservatif tedavi, 21 hastaya (% 25) laparotomi uygulandı. Laparotomilerin; 17'si (% 80) terapötik, 2'si (%10) nonterapötik ve 2'si (%10) negatif idi. Klinik takip ve tanı metodlarının birlikte kullanımı gereksiz laparotomi oranlarını azaltmaktadır. OBJECTIVE: Penetrating anterior abdominal stab injuries (PAASI), frequently encountered in Emergency Unit and traditionally managed with mandatory laparotomy, are nowadays managed conservatively. The decision of laparotomy is based on physical examination, laboratory and imaging results during follow-up. The purpose of this study was to analyze the outcome of patients with PAASI. METHODS: From April 2009 to November 2011, patients with diagnosis of PAASI admitted in Emergency Unit were prospectively included in the study. While hemodinamically stable patients without signs of peritonitis were managed conservatively, unstable and/or patients with signs of peritonitis underwent emergency laparotomy. Location of the injury, type of management (emergency, early, late), laparotomy findings (therapeutic, non-therapeutic, negative), and treatment results were analyzed. RESULTS: Totally 85 patients were included in the study. Hemodynamically stable 80 patients without signs of peritonitis were treated conservatively (group 1), while emergency laparotomy was performed in 5 patients (group 2). In group 1, early laparotomy was performed in 11 patients and late laparotomy in 5 patients. Totally 13 therapeutic, 2 nontherapeutic and 1 negative laparotomy were performed. In Group 2, the indications for laparotomy were acute abdomen (n=3), hemodynamic instability (n=1), and organ evisceration (n=1). Group 2 included 4 therapeutic, 1 negative laparotomy and in this group 1 patient died intraoperatively. CONCLUSION: In this study, 64 patients (75%) were managed conservatively, whereas 21 patients (25%) underwent laparotomy, including 17 therapeutic (80%), 2 nontherapeutic (% 10) and 2 negative (10%). Clinical follow-up and use of diagnostic methods decrease the rate of unnecessary laparotomy

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

Search for stop and higgsino production using diphoton Higgs boson decays

Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass

Severe early onset preeclampsia: short and long term clinical, psychosocial and biochemical aspects

Preeclampsia is a pregnancy specific disorder commonly defined as de novo hypertension and proteinuria after 20 weeks gestational age. It occurs in approximately 3-5% of pregnancies and it is still a major cause of both foetal and maternal morbidity and mortality worldwide1. As extensive research has not yet elucidated the aetiology of preeclampsia, there are no rational preventive or therapeutic interventions available. The only rational treatment is delivery, which benefits the mother but is not in the interest of the foetus, if remote from term. Early onset preeclampsia (<32 weeks’ gestational age) occurs in less than 1% of pregnancies. It is, however often associated with maternal morbidity as the risk of progression to severe maternal disease is inversely related with gestational age at onset2. Resulting prematurity is therefore the main cause of neonatal mortality and morbidity in patients with severe preeclampsia3. Although the discussion is ongoing, perinatal survival is suggested to be increased in patients with preterm preeclampsia by expectant, non-interventional management. This temporising treatment option to lengthen pregnancy includes the use of antihypertensive medication to control hypertension, magnesium sulphate to prevent eclampsia and corticosteroids to enhance foetal lung maturity4. With optimal maternal haemodynamic status and reassuring foetal condition this results on average in an extension of 2 weeks. Prolongation of these pregnancies is a great challenge for clinicians to balance between potential maternal risks on one the eve hand and possible foetal benefits on the other. Clinical controversies regarding prolongation of preterm preeclamptic pregnancies still exist – also taking into account that preeclampsia is the leading cause of maternal mortality in the Netherlands5 - a debate which is even more pronounced in very preterm pregnancies with questionable foetal viability6-9. Do maternal risks of prolongation of these very early pregnancies outweigh the chances of neonatal survival? Counselling of women with very early onset preeclampsia not only comprises of knowledge of the outcome of those particular pregnancies, but also knowledge of outcomes of future pregnancies of these women is of major clinical importance. This thesis opens with a review of the literature on identifiable risk factors of preeclampsia

Search for anomalous production of events with three or more leptons in pp collisions at √s = 8TeV

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.A search for physics beyond the standard model in events with at least three leptons is presented. The data sample, corresponding to an integrated luminosity of 19.5fb-1 of proton-proton collisions with center-of-mass energy s=8TeV, was collected by the CMS experiment at the LHC during 2012. The data are divided into exclusive categories based on the number of leptons and their flavor, the presence or absence of an opposite-sign, same-flavor lepton pair (OSSF), the invariant mass of the OSSF pair, the presence or absence of a tagged bottom-quark jet, the number of identified hadronically decaying τ leptons, and the magnitude of the missing transverse energy and of the scalar sum of jet transverse momenta. The numbers of observed events are found to be consistent with the expected numbers from standard model processes, and limits are placed on new-physics scenarios that yield multilepton final states. In particular, scenarios that predict Higgs boson production in the context of supersymmetric decay chains are examined. We also place a 95% confidence level upper limit of 1.3% on the branching fraction for the decay of a top quark to a charm quark and a Higgs boson (t→cH), which translates to a bound on the left- and right-handed top-charm flavor-violating Higgs Yukawa couplings, λtcH and λctH, respectively, of |λtcH|2+|λctH|2<0.21