Code Authors Research Articles

Radiomic-Based Approaches in the Multi-metastatic Setting: A Quantitative Review.

Radiomics traditionally focuses on analyzing a single lesion within a patient to extract tumor characteristics, yet this process may overlook inter-lesion heterogeneity, particularly in the multi-metastatic setting. There is currently no established method for combining radiomic features in such settings, leading to diverse approaches with varying strengths and limitations. Our quantitative review aims to illuminate these methodologies, assess their replicability, and guide future research toward establishing best practices, offering insights into the challenges of multi-lesion radiomic analysis across diverse datasets. We conducted a comprehensive literature search to identify methods for integrating data from multiple lesions in radiomic analyses. We replicated these methods using either the author's code or by reconstructing them based on the information provided in the papers. Subsequently, we applied these identified methods to three distinct datasets, each depicting a different metastatic scenario. We compared ten mathematical methods for combining radiomic features across three distinct datasets, encompassing a total of 16,850 lesions in 3,930 patients. Performance of these methods was evaluated using the Cox proportional hazards model and benchmarked against univariable analysis of total tumor volume. We observed variable performance in methods across datasets. However, no single method consistently outperformed others across all datasets. Notably, while some methods surpassed total tumor volume analysis in certain datasets, others did not. Averaging methods showed higher median performance in patients with colorectal liver metastases, and in soft tissue sarcoma, concatenation of radiomic features from different lesions exhibited the highest median performance among tested methods. Radiomic features can be effectively selected or combined to estimate patient-level outcomes in multi-metastatic patients, though the approach varies by metastatic setting. Our study fills a critical gap in radiomics research by examining the challenges of radiomic-based analysis in this setting. Through a comprehensive review and rigorous testing of different methods across diverse datasets representing unique metastatic scenarios, we provide valuable insights into effective radiomic analysis strategies.

System for automated design of resonant inverters

In the MATLAB environment, with the help of author's code, a programming environment is developed in which the input parameters are entered, the type and structure of the inverter is selected, and the values of the circuit elements are automatically calculated. Finally, for the purpose of verification, the operation of the designed inverter is simulated. From the resulting simulation, the overall behavior of the state space variables is seen.

The Effect of Publication Experience on Kompas.com for Writer’s Codes Ethics Analysis Ability and Reader’s Psychology

The ease of access offered by the internet makes many people choose to turn to online media as a source of information and news. One of the notable news media portals in Indonesia is Kompas.com. In conveying online news, Kompas.com journalists must, of course, pay attention to the journalistic ethical codes that have been regulated in the Press Law Number 40 of 1999. This research uses a qualitative approach with document analysis and note-taking methods. This study aims to answer whether the publication experience on Kompas.com affects the ability to analyze the author's code of ethics, what forms of violation of the journalistic code of ethics are found in Kompas.com's reporting and whether violations of the journalistic code of ethics can affect readers psychologically. The results of this study found that publication experience on Kompas.com did not affect the ability to understand the journalistic code of ethics. There are five forms of violations of the journalistic code of ethics that researchers found in Kompas.com news, and violations of the journalistic code of ethics can affect readers psychologically.

Systemic Gender Inequities in Who Reviews Code

Code review is an essential task for modern software engineers, where the author of a code change assigns other engineers the task of providing feedback on the author's code. In this paper, we investigate the task of code review through the lens of equity, the proposition that engineers should share reviewing responsibilities fairly. Through this lens, we quantitatively examine gender inequities in code review load at Google. We found that, on average, women perform about 25% fewer reviews than men, an inequity with multiple systemic antecedents, including authors' tendency to choose men as reviewers, a recommender system's amplification of human biases, and gender differences in how reviewer credentials are assigned and earned. Although substantial work remains to close the review load gap, we show how one small change has begun to do so.

Three-dimensional numerical modeling of a rocket engine with solid fuel

This paper presents three-dimensional numerical modeling of the processes occurring in the combustion chamber of a hybrid engine. Numerical simulation using verified author's code was carried out. The distributions of temperature, pressure, longitudinal and transverse velocities were analyzed. The characteristic features of the regression rate were studied. The influence of the reaction kinetics on the nature of the processes in the combustion chamber was determined. The obtained numerical results were compared with experimental data.

Numerical analysis and performance assessment of the Thermal Energy Storage unit aimed to be utilized in Smart Electric Thermal Storage (SETS)

Used on a wide scale Electric Thermal Storage (ETS) is one of load balancing method for the electrical power system. ETS is the technology of converting off-peak electricity into heat and using it in household heating 24 h a day. Since the thermal energy is stored in the bed during off-peak hours, and while discharged during peak hours, it results in significant savings in the household heating cost. In the study, the principles of ETS central heating system operation are presented. The proposed ETS central heating system is suitable for Smart Electric Thermal Storage (SETS) when connected with an appropriate charging control system. As the central part of the study, a numerical model of the ETS discharge is presented. The proposed two–dimensional model takes into account the transient temperature distribution within the considered geometry. The governing system of differential equations along with boundary and initial conditions are solved using a Finite Volume Method. The accuracy of the author's code is assessed along with the analytical solution, as well as Ansys Transient Thermal. Furthermore, numerical results are compared with experimental data of the ETS central heating system operation. After the numerical model validation, calculations of the ETS unit performance are carried out including flow distribution, heat transfer coefficients, and heat flow within the system. A preliminary analysis of the operating parameters, the initial air temperature and the air velocity, as well as construction of the ETS unit, on the system performance is also presented.

Текст, контекст и культурологические лакуны: время и смыслы

A literary text is the reflection of dominant values existing in the society. Within the semantic space of the text, readers are trying to find their self-determination. Translation is considered as a bilingual text communication. The translating process is guided by the set of interpreters' value orientations and their vision of the text with reference to the current (actual) and / or modern communicative situation. The translated text as a target secondary text is to replace the original source text in the host language and culture system. There are special relationships between the translation and the original as they are (quasi-)identical. Their adequacy or equivalence depends on the amount and quality of the information transmitted in the secondary text in comparison with the source text. In addition to purely linguistic barriers (different language systems and rules), the author, the translator and the secondary reader are divided by textual gaps (lacunae) caused by text peculiarities. Text peculiarities are influenced by its content, form, poetics and techniques, genre and readers for which the text is intended. Temporal parameters of the author's code can make the text for the next generation of readers either a closed text in the form of a-text-not-for-all, or a semi-closed text that requires proper comments. The article deals with complexities of bilingual cross-cultural text communication arising because of discrepancies in behavioural norms, non-verbal means of communication, artistic perception of the world and national characters. Such discrepancies turn out a source of cultural lacunae not only for interpreters who act as primary readers, but also for secondary readers from the host language and culture system. The article is based on six English translations of M.A. Bulgakov's novel "The Master and Margarita".

СИНТЕЗ БИНАРНЫХ R-КОДОВ

Purpose: The increase in efficiency of modern systems is impossible without improving binary codes and signals on their basis. Widely used N-element binary codes do not provide the desirable low level of the lateral peaks of the autocorrelated function if N varies in a rather wide range. Additional requirements can be imposed on binary codes for various systems, concerning alternation of the coefficient signs and the existence of an analytical numbering system. It is important for constructing and generating a set of volume ensemble codes, storing not the code coefficients but their numbers in a certain numeral system. The purpose of this work is analytical synthesis of N-element binary codes with a preset level R of lateral peaks of the autocorrelation function (R-codes) under certain requirements to the alternation of the code coefficients, as well as the development of a system for their accounting. Results: A technique for the restricted synthesis problem solution is outlined, and its features are specified (for example, the possibility to transform a set of inequalities into a system of equations, its first half used for finding possibly appropriate codes, and its second half for choosing truly appropriate ones). Ratios are given which help to find the values of the code sequences. A way of numbering the synthesized codes based on a system of full codes is proposed. The concept of an author's code is introduced, to determine the rule of sign alternation for some R-code coefficients. A technique is given for finding lists of codes with these properties in the offered numbering system. Examples are given of synthesizing author's codes with R = 3, N = 32, 33. Practical relevance: The proposed technique and the results of the synthesis can find a use in building binary codes and signals on their basis for control systems, communication systems, radiolocation, computer systems and networks.

Generalised array low‐density parity‐check codes

In this study, using Group Permutation Low-Density Parity-Check (GP-LDPC) codes, the authors generalise the concept of array Low-Density Parity-Check (LDPC) codes from fields of prime order to those of prime power order. In fact, they consider the additive group of the finite field GF( q ), q a prime power, as the underlying group for the GP-LDPC code construction and since when q is a prime, the author's code construction method coincides with that of quasi-cyclic array LDPC codes, they call their codes, generalised array LDPC (GA-LDPC) codes. First, they prove that, like array LDPC codes, GA-LDPC codes are quasi-cyclic codes. Then, they analyse the girth of GA-LDPC codes in a way similar to that for array LDPC codes and introduce some shortened GA-LDPC codes with girths 8, 10 and 12. For many values of g , J and L , the lengths of ( J , L )-regular shortened GA-LDPC codes of girth g and rate at least 1 - J / L , constructed in this study, are smaller than the lengths of ( J , L )-regular LDPC codes of girth g and rate at least 1 - J / L , constructed in the literature. Also, simulation results show that GA-LDPC codes perform well with the iterative message-passing decoding.

On reconstruction formulas for the ray transform acting on symmetric differentials on surfaces

This paper proposes a partial answer to the explicit inversion of the tensor tomography problem in two dimensions, by proving injectivity over certain kinds of tensors and providing reconstruction formulas for them. These tensors are symmetric differentials of any order as well as other types obtained after taking their transverse covariant derivative once. Such reconstruction formulas require introducing additional types of fiberwise Hilbert transforms, which satisfy a convenient generalization of the Pestov–Uhlmann commutator formula (Pestov and Uhlmann 2005 Ann. Math. 161 1093–110). Numerical simulations in MatLab are provided using the author's code presented in Monard (2014 SIAM J. Imaging Sci.), justifying the exactness of the formulas in some cases of simple and near-simple metrics, and displaying issues encountered as one increases either curvature, lack of simplicity or tensor order, in all of which cases the formulas derived in the first part become theoretically insufficient.

A new Green's function for the wake potential calculation of the SLAC S-band constant gradient accelerating section

The behavior of the longitudinal wake fields excited by a very short bunch in the SLAC S-band constant gradient accelerating structures has been studied. Wake potential calculations were performed for a bunch length of 10μm using the author's code to obtain a numerical solution of Maxwell's equations in the time domain. We have calculated six accelerating sections in the series (60-ft) to find the stationary solution. While analyzing the computational results we have found a new formula for Green's function. Wake potentials, which are calculated using this Green's function are in amazingly good agreement with numerical results over a wide range of bunch lengths. Green's function simplifies the wake potential calculations and can be easily incorporated into the tracking codes. This is very useful for beam dynamics studies of the linear accelerators of LCLS [1] and FACET [2].

Holiness, Purity, the Body, and Society: the Evidence for Theological Conflict in Leviticus

Israel Knohl's recently advanced hypothesis that the Holiness Code answers and mildly corrects the Priestly Work receives qualified support in a study of the use of words related to the roots ? and ? in Leviticus 1-16 and 17-26. But contrary to Knohl's view that the Holiness Codes still reflects priestly interests, this study shows that the different uses of the roots in the two parts of Leviticus suggest a democratization and laicization of holiness in Leviticus 17-26 and may imply a pol emic on the part of the Holiness Code's authors against the authors of Leviticus 1-16.

Automatic solution of regular and singular vector Sturm-Liouville problems

This paper describes the algorithms and theory behind a new code for vector Sturm-Liouville problems. A new spectral function is defined for vector Sturm-Liouville problems; this is an integer valued function of the eigenparameter λ which has discontinuities precisely at the eigenvalues. We describe numerical algorithms which may be used to compute the new spectral function, and its use as amiss-distance function in a new code which solves automatically a large class of regular and singular vector Sturm-Liouville problems. Vector Sturm-Liouville problems arise naturally in quantum mechanical applications. Usually they are singular. The advantages of the author's code lie in its ability to solve singular problems automatically, and in the fact that the user may specify the required eigenvalue by its index.