•The proposed TLS-based criterion includes two dual terms which are only governed by the single row-orthonormal STM.•The rationality of the TLS-based criterion is explained.•We formulate the ...soft-decision making criterion which includes two outlier parameters and the deterministic annealing technology.•We improve the accuracy of correspondence estimation and enhance the suppression of bilateral outliers by using two dual terms.
Point set registration (PSR) is competitive with related techniques because it purposefully captures the overall structure between two point-set patterns. Typically, the point set registration problem can be divided into two sub-problems: (1) search point set correspondence (PSC); (2) estimate spatial transformation matrix (STM). Searching for the best PSC is a classical combinatorial explosion problem, and estimating the STM is a continuous space optimization problem. Also, two feature point sets detected by two low-quality images include point-position errors and often involve bilateral outliers composed of such feature points that cannot form a correspondence relationship. To address the above problems, we propose an efficient PSR algorithm with dual (symmetrical) terms based on the total least squares (DT-TLS), which can correct errors-in-variables and suppress multiple outliers. Meanwhile, the framework of soft decision-making is presented, and a TLS-based criterion is constructed to efficiently exploit the probability and global structures of two-point sets. Such TLS-based criterion with single row-orthonormal STM includes two interesting dual (symmetrical) terms that can be conveniently exploited to suppress bilateral outliers. The experimental results show that DT-TLS achieves better performance than the state-of-the-art algorithms in some multi-view computer vision tasks, indicating that our proposed algorithm is suitable for solving PSR problems.
Unity Elekta is a unique magnetic resonance (MR)-linac that conjugates a 1.5 Tesla MR unit with a 7 MV flattening filter free accelerator.A prospective observational study for the clinical use of ...Elekta Unity is currently ongoing in our department. Herein, we present our preliminary report on the feasibility, quality of life, and patient-reported outcomes measures (PROMs) for localized prostate cancer (PC) treated with stereotactic body radiotherapy (SBRT).
The SBRT protocol consisted of a 35 Gy schedule delivered in 5 fractions within 2 weeks. Toxicity and quality of life (QoL) were assessed at baseline and after treatment using the Common Terminology Criteria for Adverse Events v5.0, International Prostatic Symptoms Score (IPSS), ICIQ-SF, IIEF-5, and EORTC-QLQ-C30 and PR-25 questionnaires.
Between October 2019 and January 2020, 25 patients with localized PC were recruited. The median age was 68 years (range, 54-82); 4 were low risk, 11 favorable intermediate risk (IR) and 10 unfavorable IR. Median iPSA was 6.8 ng/ml (range, 1-19), and 9 of these patients (36%) received concurrent androgen deprivation therapy. Median prostate volume was 36 cc (range, 20-61); median baseline IPSS was 5 (range, 0-10). Median time for fraction was 53 min (range, 34-86); adaptive strategy with daily critical structure and target re-contouring and daily replanning (adapt to shape) was performed in all cases. No grade ≥ 3 adverse event was observed, three patients (12%) reported grade 2 acute genitourinary toxicity (urinary frequency, urinary tract pain and urinary retention), while only one patient reported mild rectal pain. No relevant deteriorations were reported in PROMs.
To the best of our knowledge, this is the first experience reporting feasibility, clinician-reported outcome measurements, and PROMs for 1.5 T MR-guided adaptive SBRT for localized prostate cancer. The preliminary data collected here report optimal safety and excellent tolerability, as also confirmed by PROMs questionnaires. Moreover, the data on technical feasibility and timing of online daily adapted planning and delivery are promising. More mature data are warranted.
Date of approval April 2019 and numbered MRI/LINAC n°23,748.
Effectiveness of Animation in Trend Visualization Robertson, G.; Fernandez, R.; Fisher, D. ...
IEEE transactions on visualization and computer graphics,
11/2008, Volume:
14, Issue:
6
Journal Article
Peer reviewed
Open access
Animation has been used to show trends in multi-dimensional data. This technique has recently gained new prominence for presentations, most notably with Gapminder Trendalyzer. In Trendalyzer, ...animation together with interesting data and an engaging presenter helps the audience understand the results of an analysis of the data. It is less clear whether trend animation is effective for analysis. This paper proposes two alternative trend visualizations that use static depictions of trends: one which shows traces of all trends overlaid simultaneously in one display and a second that uses a small multiples display to show the trend traces side-by-side. The paper evaluates the three visualizations for both analysis and presentation. Results indicate that trend animation can be challenging to use even for presentations; while it is the fastest technique for presentation and participants find it enjoyable and exciting, it does lead to many participant errors. Animation is the least effective form for analysis; both static depictions of trends are significantly faster than animation, and the small multiples display is more accurate.
In this paper we study the existence of a positive solution for a nonlinear Dirichlet problem driven by the p-Laplacian and a reaction which has the competing effects of a singular term and of a ...convection (gradient dependent) term. Using the “frozen” variable method and eventually the Leray-Schauder Alternative Theorem, we show that the problem has a positive smooth solution. We mention that on the gradient dependent perturbation x↦f(z,x,y), we do not impose any bilateral growth condition.
Verbal derogation is not only a linguistic but also, and perhaps more importantly, a political phenomenon. In this paper, I argue that to do justice to the political relevance of derogatory terms, we ...must not neglect the social practices and structures in which the use of these terms is embedded. I aim to show that inferentialist semantics is especially helpful to account for this social embeddedness and, consequently, the political relevance of derogatory terms. I am concerned with specifying the linguistic and political aspects of terms that are at the core of derogatory language use. I explain them with the help of Brandomian inferentialism, which tends to be quickly dismissed or ignored in discussions about the meaning of derogatory terms. My inferentialist account is in line with Lynne Tirrell's broader inferentialist framework for understanding derogatory communicative practices. I provide the semantic details of her broader inferentialist view and thereby aim to show that inferentialist semantics is a promising theory which cannot be neglected in further discussion of meaning and politics in derogatory language use.
This study considers the blow-up in finite time and large-time behavioral properties of solutions to the initial-boundary value problem for generalized Kelvin–Voigt equations with p-Laplacian and ...source/absorption terms:v→t+(v→⋅∇)v→+∇P=div(ϰ|D(v→)|q−2D(v→)t+ν|D(v→)|p−2D(v→))+γ|v→|m−2v→,divv→(x,t)=0,(x,t)∈QT, where D(v→)=12(∇v→+∇v→T) is the rate of the strain tensor, v→(x,t) is the velocity field, P(x,t) is the pressure, ν is the viscosity kinematic coefficient, and ϰ is the viscosity relaxation coefficient. The coefficient γ and the exponents p, m are given constants.
Two different cases are considered. In the case where γ<0 (with an absorption term), we prove that the solutions of the associated problem exhibit exponential and power decay, and, in the case where γ>0 (with nonlinear source term), the solutions blow up in a finite time under suitable assumptions on the exponents p, q, m and the coefficients ν, ϰ, γ, with certain initial data.
The specifics of the contract of carriage of goods and its difference from other types of contracts used in the sale of goods and services are considered. Application of the contract of carriage of ...goods for the regulation of large-scale and long-term relations, and also relations between the branches of the economy and the regions of the country are considered. This is of practical importance and is necessary due to the fact that the specifically dedicated norms are applied to each contract along with the norms common to all sales contracts. At the same time, the legal characteristic of economic contract depends not only on the name assigned to it by the parties but also on those rights and obligations that the parties have determined in the contract. However, the functions performed and the role of each of the types of transport contracts cannot be unambiguous. In the article, the factors affecting the transport service of international business transactions are considered.
In Islamic culture, the titles of what is later called the "evolution of the mystic personality" have been raised as religious, moral and spiritual concepts in the Holy Qur'an and the Sunnah of the ...Prophet (pbuh), and gradually and in varying degrees in the practice of the Companions and the followers and other Muslims Then, with regard to the inner and spiritual aspect of the states and authorities, and due to changes that are created in the human soul, moral and religious concepts have been promoted to the inner paths of conduct and have covered the gospel of "mystical terms". This article aims to investigate the evolution of the mystic personality according to the narrations of prose books of Sufi from the second to the eighth century through the library method and in a historical way
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