cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Secondary aortoenteric fistula after endovascular aortic aneurysm repair – a narrative review
Creators: name: Gueifão, Inês
name: Quintas, Anita
name: Alves, Gonçalo
name: Ribeiro, Tiago
name: Pais, Fábio
name: Henrique, Alberto
name: Ferreira, Maria Emília
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: INTRODUCTION: Endovascular aortic repair (EVAR) has become the technique of choice in most vascular centres for abdominal aortic aneurysms (AAA). However, due to its low incidence, literature regarding secondary aortoenteric fistula (AEF) as an EVAR complication is still scarce. We aim to summarise the latest evidence on the topic through a narrative review. METHODS: We conducted a MEDLINE literature search and included studies on secondary aortoenteric fistula, abdominal aortic aneurysms and endovascular aneurysm repair. Relevant studies were selected by reading of the titles and abstracts. Only English literature was considered. RESULTS: Despite secondary AEF after EVAR first being reported in 1998, its incidence is hard to calculate, but is recognized to be lower (<0.5%) when compared to open aortic repairs (up to 1.6%). Aetiology may be categorised into local infection factors (pre-existent or associated with the procedure), mechanical factors associated with the aneurysm (such as anatomical shape and size) or mechanical factors associated with the stent graft (such as kinking, endoleak or endotension). Most common symptoms include abdominal or back pain, nausea, fever and gastrointestinal bleeding. Haemodynamic instability and shock at presentation is only present in less than a fifth of patients. Patients should be thoroughly submitted to a laboratory work-up, cultures and imaging tests, particularly CT scan and upper endoscopy. There are no guidelines regarding management, but it should include total graft excision along with arterial reconstruction (either in-situ or extra-anatomical), bowel repair and prolonged antibiotic therapy. Nonetheless, AEF is associated with a high mortality rate, even if adequate treatment is performed. CONCLUSION: Secondary AEF is an uncommon life-threatening complication after EVAR. Clinical presentation is non-specific, so a high level of suspicion is necessary to rapidly reach diagnosis. Treatment requires infection source control and prolonged antibiotic therapy. Considering the increasing use of endovascular devices, there is a need for future studies providing more insight on the most adequate treatment for this complication.
description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
A unified minimax result for restricted parameter spaces
Creators: name: Marchand, Éric
name: Strawderman, William E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We provide a development that unifies, simplifies and extends considerably a number of minimax results in the restricted parameter space literature. Various applications follow, such as that of estimating location or scale parameters under a lower (or upper) bound restriction, location parameter vectors restricted to a polyhedral cone, scale parameters subject to restricted ratios or products, linear combinations of restricted location parameters, location parameters bounded to an interval with unknown scale, quantiles for location-scale families with parametric restrictions and restricted covariance matrices.
description: Published in at http://dx.doi.org/10.3150/10-BEJ336 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Design of PID controller based on PSO algorithm and its FPGA synthesization
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Satisfiability and optimisation

description: A Proportional-Integral-Derivative (PID) controller make its appearance in various control mechanism due to its adaptively, applicability and simple structure. The tuning for parameters K P , K D and K I selection for PID is a tedious task. A Particle-Swarm-Optimization (PSO) algorithm is an evolutionary method that simulates the particles to provide best solutions in a given search-space based on fitness value. It provides another design of optimization for PID controller that provides better gain parameters, fast convergence and quick computation, in this paper, an efficient designed PSO based PID controller is then synthesized with the help of Xilinx SYSGEN. To evaluate the effectiveness and usefulness of PSO the DC motor based system response is figured and compared it with conventional method.
Spontaneous isolated celiac and splenic artery dissection
Creators: name: Brandão, Daniel
name: Barreto, Paulo
name: Ferreira, Joana
name: Lopes, José
name: Sousa, Joel
name: Mansilha, Armando
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: INTRODUCTION: Spontaneous isolated visceral artery dissection is a quite rare condition and designates a dissection that originates in the visceral artery itself with no involvement of the aorta. The objective of this revision article is to summarize the current evidence on this rare pathology. METHODS: A non-systematic literature search was performed using the PubMed database. Only English literature was considered. A narrative review was constructed, with the following headings: epidemiology; etiology; diagnosis; treatment; and follow-up. RESULTS: The celiac trunk is very rarely affected by isolated dissection. Simultaneous isolated celiac and splenic artery dissection are even rarer with less than 50 cases described so far. Even if there are associated with several possible risk factors, their definitive etiology remains unknown. The clinical presentation is quite variable ad most of the patients can be handled medically. Nonetheless, careful follow-up appears to be recommended and endovascular or open surgery should be performed in case of complications. CONCLUSIONS: Spontaneous isolated celiac and splenic artery dissection are very rare and definitive etiology remains unknown. Individualized treatment and careful follow-up are recommended.
description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
Descending Thoracic Aorta as inflow for primary revascularization of aorto-iliac occlusive disease – review of the last 30 years
Creators: name: Nunes, Celso
name: Pereira, Ricardo V.
name: O'neil Pedrosa, João
name: Oliveira, Vânia
name: Silva, Eduardo
name: Baldaia, Leonor
name: Silva, Miguel
name: Anacleto, Gabriel
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: INTRODUCTION: The descending thoracic aorta (DTA) has been used as inflow mostly as a secondary option for revascularization after either graft failure/infection or other intra-abdominal pathologies contraindicating a standard abdominal aortic approach. The objective of this review is to summarize current evidence on the use of this inflow site for revascularization procedures. METHODS: A comprehensive electronic literature search was performed, using PubMed and Embase databases. All literature published in English in the last 30 years was considered. The main goal was to assess the feasibility and practicality of implementing this approach in cases of severe and complex aortoiliac lesions. RESULTS: Our review comprised 11 articles. DTA has been used predominately as a secondary option. The 30-day mortality rate was 4% (9/222). Secondary graft patency at 5-years was generally high across all studies. The use of DTA as inflow has been shown to be a safe and effective option for aorto-iliac reconstruction. CONCLUSION: DTA can be used safely as an inflow for lower-limb revascularization and it remains an important tool in the vascular surgeon's armamentarium.
description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
Data Mining Session-Based Patient Reported Outcomes (PROs) in a Mental Health Setting: Toward Data-Driven Clinical Decision Support and Personalized Treatment
Creators: name: Bennett, Casey
name: Doub, Thomas
name: Bragg, April
name: Luellen, Jason
name: Van Regenmorter, Christina
name: Lockman, Jennifer
name: Reiserer, Randall
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: General Literature (cs.GL)
subject: FOS: Computer and information sciences

description: The CDOI outcome measure - a patient-reported outcome (PRO) instrument utilizing direct client feedback - was implemented in a large, real-world behavioral healthcare setting in order to evaluate previous findings from smaller controlled studies. PROs provide an alternative window into treatment effectiveness based on client perception and facilitate detection of problems/symptoms for which there is no discernible measure (e.g. pain). The principal focus of the study was to evaluate the utility of the CDOI for predictive modeling of outcomes in a live clinical setting. Implementation factors were also addressed within the framework of the Theory of Planned Behavior by linking adoption rates to implementation practices and clinician perceptions. The results showed that the CDOI does contain significant capacity to predict outcome delta over time based on baseline and early change scores in a large, real-world clinical setting, as suggested in previous research. The implementation analysis revealed a number of critical factors affecting successful implementation and adoption of the CDOI outcome measure, though there was a notable disconnect between clinician intentions and actual behavior. Most importantly, the predictive capacity of the CDOI underscores the utility of direct client feedback measures such as PROs and their potential use as the basis for next generation clinical decision support tools and personalized treatment approaches.
description: Keywords- Data Mining; Patient-Reported Outcomes; CDOI; Implementation; Electronic Health Records; Decision Support Systems, Clinical; Theory of Planned Behavior
Design and Analysis of Single-Bit Ternary Matched Filter
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Wireless communication systems and technologies (incl. microwave and millimetrewave)

description: Matched filtering has found its way in many diverse applications such as communication, signal processing and more. The emphasis of this paper is on the design and analysis of a sigma-delta (ΣΔ) modulated ternary Matched Filter aimed at digital signal processing. The filter coefficients are made ternary {+ 1, − 1, 0} using the Ternary Quantizer. The performance of the new design is measured on the basis of Probability of error versus Signal-to-noise ratio and it was discovered that the performance curve of the single-bit designed Matched Filter is approximately in agreement with the theoretical SNR versus Probability of error curve and works satisfactorily satisfactorily like a multi-bit Matched Filter and as an extension, the functionality of the above mentioned design is also generated on Xilinx System Generator and is successfully synthesized, simulated and verified on FPGA.
Extended Tree-Level Gauge Mediation
Creators: name: Monaco, Maurizio
name: Nardecchia, Marco
name: Romanino, Andrea
name: Ziegler, Robert
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Tree-level gauge mediation (TGM) is a scenario of SUSY breaking in which the tree-level exchange of heavy (possibly GUT) vector fields generates flavor-universal sfermion masses. In this work we extend this framework to the case of E_6 that is the natural extension of the minimal case studied so far. Despite the number of possible E_6 subgroups containing G_SM is large (we list all rank 6 subgroups), there are only three different cases corresponding to the number of vector messengers. As a robust prediction we find that sfermion masses are SU(5) invariant at the GUT scale, even if the gauge group does not contain SU(5). If SUSY breaking is mediated purely by the U(1) generator that commutes with SO(10) we obtain universal sfermion masses and thus can derive the CMSSM boundary conditions in a novel scenario.
description: 22 pages, 2 figures, 3 tables
Correlation of ulcerated plaque image with intraoperative findings
Creators: name: Cunha, Roberto
name: Silva, Manuel
name: Sousa, Pedro
name: Correia, Mafalda
name: Vieira, Isabel
name: Cássio, Isabel
name: Oliveira, Nelson
name: Dias, Emanuel
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
Surgical thrombectomy after large vessel ischaemic stroke – a case report
Creators: name: Peixoto, João
name: Brandão, Pedro
name: Coelho, Andreia
name: Fernandes, Luís
name: Machado, Marta
name: Basílio, Francisco
name: Canedo, Alexandra
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: BACKGROUND: Endovascular mechanical thrombectomy (MT) changed acute ischaemic stroke management and is considered the standard of care for patients with proximal anterior circulation occlusion. MT improves functional independence, without an increase in mortality. Despite its advantages, up to 20% of patients treated with MT do not have successful recanalization, leading to poor clinical outcome. We present a case of an acute ischaemic stroke of the anterior circulation due to occlusion of the common carotid artery successfully submitted to surgical thrombectomy after failed MT. CASE REPORT: A 43-year-old male, with prior history of diabetes, hypertension, dyslipidaemia and heart failure was admitted at the emergency unit with acute bilateral lower limb ischaemia, due to cardioembolic phenomena. He was submitted to bilateral femoral thrombectomy and started endovenous unfractionated heparin. On the fifth postoperative day he developed sudden depression of cognitive status and left side hemiplegia of brachial predominance. Computed tomography angiography revealed an occlusion of brachiocephalic trunk, right subclavian artery and common carotid artery, preserving its branches. MT, performed by interventional neuroradiology, was unsuccessful (no recanalization or clinical improvement). After multidisciplinary discussion, the patient underwent urgent surgical thrombectomy through carotid and transaxillary approaches. Postoperatively, the patient’s mental status and left sided motor function recovered progressively over time. Three months after, patient maintains anticoagulation with warfarin, without neurological sequalae. CONCLUSION: The low rate of recanalization and poor clinical outcome after MT failure underlines the need for alternative rescue approaches. Surgical thrombectomy could represent a lifeline. More studies are needed to corroborate its efficacy in patients with anterior circulation acute ischaemic stroke.
description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
Pseudoaneurysm of the external iliac artery after total hip arthroplasty – a case report
Creators: name: Vaz, Renata
name: Toledo, Timmy
name: Pinheiro, Luís
name: Silva, Anaísa
name: Artur, Fernando
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: BACKGROUND: Delayed arterial injury after total hip arthroplasty is unusual and the consequences of this complication are serious and potentially life threatening. CASE REPORT: We present a case of pseudoaneurysm of the external iliac artery occurring 6 years after total hip replacement revision due to infected acetabular cup protrusion. Due to the presence of prosthetic infection, the patient was managed with urgent ligation of external iliac artery and femoro-femoral bypass. Afterwards, a Girdlestone procedure was performed. This was selected according to patient comorbidities and previous interventions. The patient recovered ambulatory function and no late complications were observed. CONCLUSION: This report suggests that a careful and long-term follow-up of patients who have undergone hip surgery should be considered, as well as patient information regarding possible late complications. Moreover, treatment decision must be made according to patient circumstances, resources available and surgical experience.
description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
A novel method based on UNET for bearing fault diagnosis
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Mobile computing

description: Reliability of rotating machines is highly dependent on the smooth rolling of bearings. Thus, it is very essential for reliable operation of rotating machines to monitor the working condition of bearings using suitable fault diagnosis and condition monitoring approach. In the recent past, Deep Learning (DL) has become applicable in condition monitoring of rotating machines owing to its performance. This paper proposes a novel bearing fault diagnosis method based on the processing and analysis of the vibration images. The proposed method is the UNET model that is a recent development in DL models. The model is applied to the 2D vibration images obtained by transforming normalized amplitudes of the time-series vibration data samples into the corresponding vibration images. The UNET model performs pixel-level feature learning using the vibration images owing to its unique architecture. The results demonstrate that the model can perform dense predictions without any loss of label information, generally caused by the sliding window labelling method. The comparative analysis with other DL models confirmed the superiority of the UNET model which has achieved maximum accuracy of 98.91% and F1-Score of 99%.
Link-wise Artificial Compressibility Method
Creators: name: Asinari, Pietro
name: Ohwada, Taku
name: Chiavazzo, Eliodoro
name: Di Rienzo, Antonio Fabio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The Artificial Compressibility Method (ACM) for the incompressible Navier-Stokes equations is (link-wise) reformulated (referred to as LW-ACM) by a finite set of discrete directions (links) on a regular Cartesian mesh, in analogy with the Lattice Boltzmann Method (LBM). The main advantage is the possibility of exploiting well established technologies originally developed for LBM and classical computational fluid dynamics, with special emphasis on finite differences (at least in the present paper), at the cost of minor changes. For instance, wall boundaries not aligned with the background Cartesian mesh can be taken into account by tracing the intersections of each link with the wall (analogously to LBM technology). LW-ACM requires no high-order moments beyond hydrodynamics (often referred to as ghost moments) and no kinetic expansion. Like finite difference schemes, only standard Taylor expansion is needed for analyzing consistency. Preliminary efforts towards optimal implementations have shown that LW-ACM is capable of similar computational speed as optimized (BGK-) LBM. In addition, the memory demand is significantly smaller than (BGK-) LBM. Importantly, with an efficient implementation, this algorithm may be one of the few which is compute-bound and not memory-bound. Two- and three-dimensional benchmarks are investigated, and an extensive comparative study between the present approach and state of the art methods from the literature is carried out. Numerical evidences suggest that LW-ACM represents an excellent alternative in terms of simplicity, stability and accuracy.
description: 62 pages, 20 figures
Asymptotic Analysis of the Boltzmann Equation for Dark Matter Relics
Creators: name: Bender, Carl M.
name: Sarkar, Sarben
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This paper presents an asymptotic analysis of the Boltzmann equations (Riccati differential equations) that describe the physics of thermal dark-matter-relic abundances. Two different asymptotic techniques are used, boundary-layer theory, which makes use of asymptotic matching, and the delta expansion, which is a powerful technique for solving nonlinear differential equations. Two different Boltzmann equations are considered. The first is derived from general relativistic considerations and the second arises in dilatonic string cosmology. The global asymptotic analysis presented here is used to find the long-time behavior of the solutions to these equations. In the first case the nature of the so-called freeze-out region and the post-freeze-out behavior is explored. In the second case the effect of the dilaton on cold dark-matter abundances is calculated and it is shown that there is a large-time power-law fall off of the dark-matter abundance. Corrections to the power-law behavior are also calculated.
description: 15 pages, no figures
Surgical treatment of axillary artery aneurysms through a transaxillary approach
Creators: name: Palma, Francesca
name: Asciutto, Giuseppe
name: Austermann, Martin
name: Usai, Marco Virgilio
Publisher: name: Angiologia e Cirurgia Vascular
Year: 2023

description: BACKGROUND: Axillary artery aneurysms are rare. Due to their anatomical peculiarities, their therapeutic management is individualized. Minimal invasive endovascular treatments are gaining increased popularity. However, surgical solutions are associated with better long-term patency. CASE REPORT: We describe two cases of isolated axillary artery aneurysm, managed with surgical resection and graft interposition. The patients had not experienced any ischemic symptoms, pain or disabling swelling of the upper extremity. One patient underwent in situ reconstruction with a venous graft and the other with a prosthetic graft. The early postoperative recovery was uneventfull. After a follow-up time of 12 months, both reconstructions remain patent and with not upper limb symptoms. CONCLUSION: Surgical repair of axillary artery aneurysms is associated with good results, but larger cohorts are necessary to confirm our experience.
description: Angiologia e Cirurgia Vascular, Vol. 19 No. 3 (2023): September
A new estimation of nonlinear contact forces of railway vehicle
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Transport engineering

description: The core part of any study of rolling stock behavior is the wheel-track interaction patch because the forces produced at the wheel-track interface govern the dynamic behavior of the whole railway vehicle. It is significant to know the nature of the contact force to design more effective vehicle dynamics control systems and condition monitoring systems. However, it is hard to find the status of this adhesion force due to its complexity, highly non-linear nature, and also affected with an unpredictable operation environment. The purpose of this paper is to develop a model-based estimation technique using the Extended Kalman Filter (EKF) with inertial sensors to estimate non-linear wheelset dynamics in variable adhesion conditions. The proposed model results show the robust performance of the EKF algorithm in dry, wet/rain, greasy, and fully contaminated track conditions in traction and braking modes of a railway vehicle. The proposed model is related to the other works in the area of wheel-rail systems and a tradeoff exists in all conditions. This model is very useful in condition monitoring systems for railway asset management to avoid accidents and derailment of a train.
Incomplete quantum state estimation: a comprehensive study
Creators: name: Teo, Yong Siah
name: Stoklasa, Bohumil
name: Englert, Berthold-Georg
name: Rehacek, Jaroslav
name: Hradil, Zdenek
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a detailed account of quantum state estimation by joint maximization of the likelihood and the entropy. After establishing the algorithms for both perfect and imperfect measurements, we apply the procedure to data from simulated and actual experiments. We demonstrate that the realistic situation of incomplete data from imperfect measurements can be handled successfully.
description: 11 pages, 10 figures
Analyzing the Impact of Sigma-Delta Modulation on Performance Parameters of Adaptive Filters
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Wireless communication systems and technologies (incl. microwave and millimetrewave)

description: Sigma-delta modulation (SDM), initially introduced for ADCs and DACs is now well known in an alternative domain of short word-length (SWL) algorithm based digital system design. Its applications start from simple arithmetic operations to very complex circuits, like the adaptive filters. The conventional multi-bit processing systems consume more resources in their implementation on ASICs and FPGAs, whereas, SDM based systems being processing the data in a single-bit result a compact design. This paper is an effort towards SDM based single-bit, design of adaptive filter using Wiener–Hopf equation on FPGA, along with analyzing the impact of SDM on performance parameters, like, Signal to Noise Ratio (SNR), Probability of Error (PE), and Mean Square Error (MSE). Besides, the error graph, showing the difference between the filtered signal in multi-bit and SDM based is also shown and analyzed using Matlab. As, the mobile phone operates in a continuous varying environment (for example, during the travel), and hence the statistical parameters (SNR, MSE, and PE) due to varying channel also vary accordingly in its conventional operations and architectures, but results show that instead if SDM is used, those statistical parameters remain constant, and in comparison to the multi-bit approach the SDM based system outdoes in all means of functionality as well as performance. Hence, it may be concluded that for continuous varying environments of wireless communication, especially the mobile communication systems, the SDM based approach may be adopted for reasons of good performance as well as compact system design.
Combination of searches for anomalous top quark couplings with 5.4 fb^-1 of ppbar collisions
Creators: name: D0 Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present measurements of the tWb coupling form factors using information from electroweak single top quark production and from the helicity of W bosons from top quark decays in ttbar events. We set upper limits on anomalous tWb coupling form factors using data collected with the D0 detector at the Tevatron ppbar collider corresponding to an integrated luminosity of 5.4 fb^-1.
description: 8 pages, submitted to Phys. Lett. B
Conflicting outlooks: the background to the 1924 deposing of the six nations hereditary council
Creators: name: Trevithick, Scott Richard
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: E99 .I7 T74 1998
subject: Iroquois Indians--Ontario--Politics and government.
subject: Iroquois Indians--Ontario--Government relations.
subject: Iroquois Indians--Ontario--History.
subject: Indians of North America--Canada--Government relations--1860-1951.
subject: Six Nation Indian Reservation (Ont.)

description: Bibliography: p. 116-124
Classical fairy tales: portals to our identities
Creators: name: Valckx, Leela Vati
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: LB1140.35 .S76 V35 1998
subject: Additional copy: 370 EDC 1998 VAL in the Doucette Education Library.
subject: Storytelling--Education--Canada.
subject: Cognition in children
subject: Folklore and children.
subject: Fantasy in children
subject: Fairy tales--Psychological aspects.

description: Bibliography: p. 135-145
Analysis of Existing and Proposed 3-Bit and Multi-Bit Multiplier Algorithms for FIR Filters and Adaptive Channel Equalizers on FPGA
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Automated software engineering

description: Different multiplication algorithms have different performance characteristics. Some are good at speed while others consume less area when implemented on hardware, like Field Programmable Gate Array (FPGA)-the advanced implementation technology for DSP systems. The eminent parallel and sequential multiplication algorithms include Shift and Add, Wallace Tree, Booth, and Array. The multiplier optimization attempts have also been reported in adders used for partial product addition. In this paper, analogous to conventional multipliers, two new multiplication algorithms implemented on FPGA are shown and compared with conventional algorithms as stand-alone and by using them in the implementation of FIR filters and adaptive channel equalizer using the LMS algorithm. The work is carried out on Spartan-6 FPG that may be extended for any type of FPGA. Results are compared in terms of resource utilization, power consumption, and maximum achieved frequency. The results show that for a small length of coefficients like 3-bit, the proposed algorithms work very well in terms of achieved frequency, consumed power, and even resource utilization. Whilst for the length greater than 3-bit, the Pipelined multiplier is much better in frequency than the proposed and conventional ones, and the Booth multiplier consumes fewer resources in terms of lookup tables.
NGC454: unveiling a new "changing look" AGN
Creators: name: Marchese, Elena
name: Braito, Valentina
name: Della Ceca, Roberto
name: Caccianiga, Alessandro
name: Severgnini, Paola
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a detailed analysis of the X-ray spectrum of the Seyfert 2 galaxy NGC454E, belonging to the interacting system NGC454. Observations performed with Suzaku, XMM-Newton and Swift allowed us to detect a dramatic change in the curvature of the 2-10 keV spectrum, revealing a significant variation of the absorbing column density along the line of sight (from ~ 1 x10^{24}cm^{-2} to ~ 1x10^{23}cm^{-2}). Consequently, we propose this source as a new member of the class of "changing look" AGN, i.e. AGN that have been observed both in Compton-thin (NH =10^{23 cm^{-2}) and reflection dominated states (Compton-thick, NH >10^{24} cm^{-2}). Due to the quite long time lag (6 months) between the Suzaku and XMM-Newton observations we cannot infer the possible location of the obscuring material causing the observed variability. In the 6-7 keV range the XMM-Newton observation also shows a clear signature of the presence of an ionized absorber. Since this feature is not detected during the Suzaku observation (despite its detectability), the simplest interpretation is that the ionized absorber is also variable; its location is estimated to be within ~10^{-3} pc from the central black hole, probably much closer in than the rather neutral absorber.
description: 10 pages
Monasticism and medicine: gendered activities in healing practices, 500-1100
Creators: name: Woods, Lori Ann
Publisher: name: University of Calgary
Year: 1998
Subjects: subject: R141 .W66 1998
subject: Medicine, Medieval--History.
subject: Healing--Europe--History.
subject: Women--History---Middle Ages, 500-1500.
subject: Sex role--Europe--History.
subject: Monasticism and religious orders--History--Middle Ages, 600-1500.

description: Bibliography: p. 114-123
Optimal multiple stopping with random waiting times
Creators: name: Christensen, Sören
name: Irle, Albrecht
name: Jürgens, Stephan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Pricing of Securities (q-fin.PR)
subject: Probability (math.PR)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: 60G40, 91B28

description: In the standard models for optimal multiple stopping problems it is assumed that between two exercises there is always a time period of deterministic length $δ$, the so called refraction period. This prevents the optimal exercise times from bunching up together on top of the optimal stopping time for the one-exercise case. In this article we generalize the standard model by considering random refraction times. We develop the theory and reduce the problem to a sequence of ordinary stopping problems thus extending the results for deterministic times. This requires an extension of the underlying filtrations in general. Furthermore we consider the Markovian case and treat an example explicitly.
Quenching and Tomography from RHIC to LHC
Creators: name: Horowitz, W. A.
name: Gyulassy, Miklos
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare fully perturbative and fully nonperturbative pictures of high-pT energy loss calculations to the first results from LHC. While over-suppressed compared to published ALICE data, parameter-free pQCD predictions based on the WHDG energy loss model constrained to RHIC data simultaneously describe well the preliminary CMS hadron suppression, ATLAS charged hadron v2, and ALICE D meson suppression; we also provide for future reference WHDG predictions for B meson RAA. However, energy loss calculations based on AdS/CFT also qualitatively describe well the RHIC pion and non-photonic electron suppression and LHC charged hadron suppression. We propose the double ratio of charm to bottom quark RAA will qualitatively distinguish between these two energy loss pictures.
description: 4 pages, 3 figures. Proceedings for Quark Matter 2011
A Correlation-Less Approach Towards Adaptive Channel Equalizer Based on Wiener–Hopf Equation
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Wireless communication systems and technologies (incl. microwave and millimetrewave)

description: Wiener, the well-known adaptive filter is seen in almost all the applications of adaptive signal processing. It gets the weight updating by solving the Wiener –Hopf equation (ωopt = R−1P). When implemented on the state of the art hardware, like ACIS or FPGA, this filter results in substantial resource consumption. This paper proposes updating the filter weights by reducing the need for an auto-correlation matrix (R) and calculating the filter weights based on cross-correlation vector (P) only. This approach would result in a noticeable resource reduction by compromising some of the performance that may be acceptable in voice or video being less sensitive. The proposed correlation-less approach and the conventional method are first simulated in Matlab and then is implemented in Xilinx Vertex 7 FPGA for one to one comparison. The results indicate that the proposed approach reduces a significant amount of resources along with acceptable performance characteristics. Therefore, it may be incorporated in various applications of mobile communication, especially the adaptive channel equalizer.
A carry-look ahead adder based floating-point multiplier for adaptive filter applications
Creators: name: Memon, Tayab Din
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Human-computer interaction

description: Floating-point arithmetic has various applications in the field of Science and Engineering. Specially, need of high precision floating-point multipliers is observed in Digital Signal Processing- like in filtering and transformations . High speed signal processing demands for high speed hardware. Though, various high level languages based implementations of floating-point multiplier are observed so far, but the hardware based implementation has still remained a bottleneck. With the development of Very Large Scale Integration (VLSI) technology, Field Programmable Gate Array (FPGA) has become the best candidate for implementing floating-point multipliers (due to their high integration density, low price, high performance and flexible applications). In this work, we have shown the implementation of IEEE-754 single precision floating-point multiplier on FPGA using carry-look ahead adder (for exponent addition). The multiplier may be used in adaptive filters for multiplying the fractional step size (mue) to update the filter weights. This paper also presents the comparative analysis of proposed design with Spartan 6 FPGA's built-in IPcore for floating-point multiplier. The results are compared in terms of recourse utilization, power consumption, observed delay, logic levels and maximum achieved frequency. It is shown that our design is better in terms of achieved frequency with a small increase in resource utilization.
The angiotensin-converting enzyme 2 (ACE2) receptor in the prevention and treatment of COVID-19 are distinctly different paradigms.
Creators: name: McLachlan, Craig
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Pharmacology and pharmaceutical sciences not elsewhere classified

description: There is current debate concerning the use of angiotensin-converting enzyme (ACE) inhibitors or angiotensin II type 1 receptor blockers (ARBs), for hypertension management, during COVID-19 infection. Specifically, the suggestion has been made that ACE inhibitors or ARBs could theoretically contribute to infection via increasing ACE2 receptor expression and hence increase viral load. The ACE2 receptor is responsible for binding the SAR-CoV2 viral spike and causing COVID-19 infection. What makes the argument somewhat obtuse for ACE inhibitors or ARBs is that ACE2 receptor expression can be increased by compounds that activate or increase the expression of SIRT1. Henceforth common dietary interventions, vitamins and nutrients may directly or indirectly influence the cellular expression of the ACE2 receptor. There are many common compounds that can increase the expression of the ACE2 receptor including Vitamin C, Metformin, Resveratrol, Vitamin B3 and Vitamin D. It is important to acknowledge that down-regulation or blocking the cellular ACE2 receptor will likely be pro-inflammatory and may contribute to end organ pathology and mortality in COVID-19. In conclusion from the perspective of the ACE2 receptor, COVID-19 prevention and treatment are distinctly different. This letter reflects on this current debate and suggests angiotensin-converting enzyme inhibitors and ARBs are likely beneficial during COVID-19 infection for hypertensive and normotensive patients.
Deterministic ants in labirynth -- information gained by map sharing
Creators: name: Malinowski, Janusz
name: Kułakowski, Krzysztof
Publisher: name: arXiv
Year: 2012
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: A few of ant robots are dropped to a labirynth, formed by a square lattice with a small number of nodes removed. Ants move according to a deterministic algorithm designed to explore all corridors. Each ant remembers the shape of corridors which she has visited. Once two ants met, they share the information acquired. We evaluate how the time of getting a complete information by an ant depends on the number of ants, and how the length known by an ant depends on time. Numerical results are presented in the form of scaling relations.
description: 10 pages, 4 figures
Resonances formed by pbar-p and decaying into pizero-pizero-eta for masses 1960 to 2410 MeV
Creators: name: Anisovich, A. V.
name: Baker, C. A.
name: Batty, C. J.
name: Bugg, D. V.
name: Hodd, C.
name: Kisiel, J.
name: Nikonov, V. A.
name: Sarantsev, A. V.
name: Sarantsev, V. V.
name: Scott, I.
name: Zou, B. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Data on pbar-b annihilation in flight into pizero-pizero-eta are presented for nine beam momenta 600 to 1940 MeV/c. The strongest four intermediate states are found to be f_2(1270)-eta, a_2(1320)-pi, sigma-eta and a_0(980)-pi. Partial wave analysis is performed mainly to look for resonances formed by pbar-p and decaying into pizero-pizero-eta through these intermediate states. There is evidence for the following s-channel I = 0 resonances : two 4^{++} resonances with mass and width (M,Gamma) at (2044, 208) MeV and (2320+-30, 220+-30) MeV; three 2^{++} resonances at (2020+-50, 200+-70) MeV, (2240+-40, 170+-50) MeV and (2370+-50, 320+-50) MeV; two 3^{++} resonances at (2000+-40, 250+-40) MeV and (2280+-30, 210+-30) MeV; a 1^{++} resonance at (2340+-40, 340+-40) MeV; and two 2^{-+} resonances at (2040+-40, 190+-40) MeV and (2300+-40, 270+-40) MeV.
description: One of 10 sets of data fitted to pbar-p I=0, C=+1, 21 pages, 16 figures
Sex-specific educational attainment is associated with telomere length in an Australian rural population
Creators: name: McLachlan, Craig
Publisher: name: Torrens University Australia
Year: 2022
Subjects: Other biological sciences not elsewhere classified

description: There is limited understanding on whether and how socioeconomic status (SES), particularly educational attainment and household income, impacts on telomere length in an Australian rural context. Additionally, it is unknown whether access to health services via the Australian public or private health system influences telomere length. AIM: This study investigates whether there is a relationship between telomere length and SES indicators (income, education) as well as health insurance status in a rural Australian population. METHODS: Samples were drawn from the Australian Rural Victoria cross-sectional Crossroads Study. Leucocyte telomere length (LTL) was measured using a multiplex quantitative polymerase chain reaction method. RESULTS: Among 1424 participants, we did not find a significant main effect association with LTL across education, income level and health insurance. An exploratory finding was sex may influence the relationship between educational attainment and LTL (P = 0.021). In males, but not females, higher education was associated with longer LTL by 0.033 [95% confidence interval (CI) 0.002-0.063, P = 0.035]; in those with low education attainment, male participants had shorter LTL by 0.058 (95% CI -0.086 to -0.029) than female participants (P < 0.0001). CONCLUSION: Being male and having lower education attainment was associated with shorter telomere length in our rural population. Evidence from our study supports the importance of education on LTL in males in rural Australia. Our studies also support previous findings that LTL in later life may not be closely associated with indicators of SES.
Challenging packaging limits and infectivity of phage λ
Creators: name: Nurmemmedov, Elmar
name: Castelnovo, Martin
name: Medina, Elizabeth
name: Catalano, Carlos Enrique
name: Evilevitch, Alex
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The terminase motors of bacteriophages have been shown to be among the strongest active machines in the biomolecular world, being able to package several tens of kilobase pairs of viral genome into a capsid within minutes. Yet these motors are hindered at the end of the packaging process by the progressive build-up of a force resisting packaging associated with already packaged DNA. In this experimental work, we raise the issue of what sets the upper limit on the length of the genome that can be packaged by the terminase motor of phage λ and still yield infectious virions, and the conditions under which this can be efficiently performed. Using a packaging strategy developed in our laboratory of building phage λ from scratch, together with plaque assay monitoring, we have been able to show that the terminase motor of phage λ is able to produce infectious particles with up to 110% of the wild-type (WT) λ-DNA length. However, the phage production rate, and thus the infectivity, decreased exponentially with increasing DNA length, and was a factor of 103 lower for the 110% λ-DNA phage. Interestingly, our in vitro strategy was still efficient in fully packaging phages with DNA lengths as high as 114% of the WT length, but these viruses were unable to infect bacterial cells efficiently. Further, we demonstrated that the phage production rate is modulated by the presence of multivalent ionic species. The biological consequences of these finding are discussed.
Mitigating Advanced Persistent Threats (APTs) in Cybersecurity Through the Implementation of Distributed Ledger Technology: A Detailed Study and Practical Approach to Enhancing Intrusion Resilience.pdf
Creators: name: Sidhu, Armaan
Publisher: name: figshare
Year: 2023
Subjects: Cybersecurity and privacy not elsewhere classified

description: This research paper addresses the escalating issue of APTs in the realm of cybersecurity. The paper explores the potential of Distributed Ledger Technology (DLT) as a novel solution to enhance intrusion resilience and mitigate the risks associated with APTs. The methodology adopted in this study involves a detailed analysis and practical implementation of DLT in a simulated cybersecurity environment, focusing on its ability to detect, prevent, and respond to APTs. The paper delves into the technical aspects of DLT, elucidating its unique features that contribute to its effectiveness in combating APTs. The results of the study demonstrate that the implementation of DLT significantly enhances the resilience of cybersecurity systems against APTs. The implementation of DLT resulted in improved detection rates of APTs, reduced response times, and increased overall system resilience. The study concludes that DLT holds substantial promise as a robust solution for mitigating APTs, thereby contributing to the advancement of cybersecurity measures. This paper serves as a comprehensive guide to understanding the potential of DLT in mitigating APTs, providing valuable insights for cybersecurity professionals and researchers. The findings underscore the need for further exploration and adoption of DLT in the field of cybersecurity to combat the growing threat of APTs.
SuppMaterial_v2.pdf from Correction to ‘Bayesian inference on a microstructural, hyperelastic model of tendon deformation’ (2022) by Forsyth et al.
Creators: name: Forsyth, Jessica E.
name: Casey, James
name: Cotter, Simon L.
name: Parnell, William J.
name: Shearer, Tom
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 320203
subject: Clinical microbiology

description: SEF derivation