bluuebunny/crossref_metadata_2025 huggingface dataset:
Grounded Meminductor Emulator Using Operational Amplifier-Based Generalized Impedance Converter and Its Application in High Pass Filter
Authors: Gupta Anshul , Rai Shireesh Kumar , Gupta Maneesha
Published: October 2022

This paper exhibits a grounded meminductor emulator designed using an operational amplifier generalized impedance converter (GIC) and a memristor. One of the resistors of GIC has been judiciously replaced by memristor to convert active inductor circuit into meminductor emulator circuits. For the proposed grounded meminductor emulator, pinched hysteresis loops of up to 5kHz have been produced. The simulation findings were obtained using the LTspice simulation tool. The pinched hysteresis loops are shrinking when the frequency is varied from 100 Hz – 5 kHz. A high pass filter has also been constructed and simulated using the proposed meminductor emulator to validate its performance.
Performance Analysis of Renewable Integrated UPQC
Authors: Shahapure Sachin B. , Kulkarni (Deodhar) Vandana A. , Hasabe Ramchandra P.
Published: October 2022

The enhancement in electric power quality using a single-stage solar PV integrated Unified Power Quality Conditioner (UPQC) has been discussed in this paper. The UPQC is the combination of Distributed static compensator (DSTATCOM) and Dynamic Voltage Restorer (DVR) having the common DC voltage supply link. The DSTATCOM compensates for the load current associated problems like load power factor improvement, even and odd current harmonics elimination etc. Also, it performs the additional work of transferring power from the solar PV system to the load of the distribution system. The DVR compensates the voltage-associated power quality problems like source voltage sag, source voltage swell, and voltage distortion. Discussed UPQC with distributed generation system works on modified synchronously rotating reference frame theory. With the help of the discussed system, the two outcomes are achieved such as clean and renewable energy generation and power quality enhancement. The system is designed in MATLAB Simulink environment and then system performance is verified on Real-Time Digital Simulator (OPAL-RT OP4510) in Software in Loop Simulation (SIL) and Hardware in Loop Simulation (HIL) platforms.
The Effect of 2030 Housing Project for Young People on Nearby Housing Prices
Authors:   Korea Real Estate Society, Lee Gi Hun , Ma Kang-Rae
Published: October 2022

It has been proven from the previous research that rising housing prices affect not only timing of the first marriage, but also family planning of young people. In response to housing shortage for young people, the Seoul Metropolitan Government came up with ‘the 2030 Housing Project for young people’ designed to supply social rental housing to young people in areas close to subway station. However, the project had been faced with the opposition from the nearby residents who are concerned with a decline of property value.
The main purpose of this study is to analyze the impact of the 2030 Housing Project for young people on the nearby housing prices using a hedonic-based difference-in-difference analysis. The main finding of this research is that the supply of the 2030 Housing Project for young people has a negative effect on the nearby housing prices at first, and then turned into a positive effect over time. Such a result might be related to the fact that young people have a key role to play in fostering local economies and vitalizing commercial districts in the community.
Forumless: Why Victims of the Uyghur Crisis Should Be Able to Vindicate Their Claims in Federal Court
Authors: Archer Chase
Published: October 2022

U.S. courts can serve as forums for victims of international human rights abuses to litigate claims against foreign defendants. Oftentimes, U.S. courts are the only option for foreign litigants who are unable to seek remedies in their own countries or in international courts. This Comment discusses the difficulties a victim of the Uyghur crisis would face attempting to use U.S. courts to litigate claims against the Chinese government or government officials under existing law. The purpose of this Comment is not to address any potential challenge to a claim but rather to address the claim preclusions common to foreign plaintiffs seeking to litigate international human rights claims in U.S. courts. In light of recent Supreme Court decisions limiting the ability of foreign plaintiffs to do so, this Comment argues that Congress should pass legislation authorizing Uyghur victims to use U.S. courts as forums for claims against perpetrators within the Chinese government.
Protecting Video Game Gameplay Creators: A Two-Pronged Copyright Approach
Authors: Foster Dakota D.
Published: October 2022

The video game industry continues to grow into a behemoth, yet the players fueling its rise lack sufficient copyright protection. While the Copyright Act protects video games’ copyrightability as audiovisual works, it lacks clear protection for the gameplay created by gameplay content creators. These secondary creators increasingly build careers out of their gameplay yet lack clear copyright protection over the videos they create because the video game developer typically owns the video game’s exclusive rights over public performance and derivative works. The status quo relies on a “gentleman’s agreement” where video game copyright holders ignore their rights in the copyright and allow gameplay creators to build careers while the copyright holders reap the benefits from the publicity. However, the copyright holders maintain the power to end a gameplay creator’s career by simply enforcing their rights.

Several proposals provide workable solutions but fall short of meaningful protection. Most proposals argue stretching the Copyright Act’s existing language to meet the video game industry’s needs while recognizing the Act lacks sufficient language for the industry’s distinctive nature. To overcome the ambiguity in interpreting dated law to a nascent industry, this Note proposes an amendment to the Copyright Act that provides a tailored approach to copyright protection for gameplay creators. This Note first proposes a declaration of non-infringement for a gameplay creator’s videos of their own gameplay from nonlinear video games. This Note secondly proposes the use of a sui generis right that recognizes the significant effort by gameplay creators in creating their gameplay videos and rewards the effort with narrow but sufficient copyright protection over their individual audiovisual creative works. Collectively, this approach alleviates the fear of copyright strikes against the gameplay creators while also allowing them to protect their works against potential infringers.
Social Distancing Detection By Drone Exploration
Authors: Ramirez Rejas Ruth de Jesus , Linares Juarez Ricardo , Barraza Vizcarra Hugo Manuel , Taya Acosta Edgar
Published: October 2022

Facing the criticality of the COVID 19 pandemic, we propose an artificial intelligence system with a modern approach detecting people and their social distancing in crowded places using thermal images obtained from the DJI Mavic 2 Enterprise Dual drone. We implement an algorithm that analyzes two types of images: color and thermal, to measure the distance between people. We used the Fast R-CNN neural network; the images with videos were extracted from the DJI Pilot application. The objective is to identify the distance between people. The results obtained show that the proposed algorithm is suitable for monitoring the city.
Hiperpotasemia severa tras realización de ileostomía en un paciente en hemodiálisis crónica
Authors: Cardona-Blasco María Pilar , Aragó-Sorrosal Sergi , Elias-Sanz Eva
Published: October 2022

Descripción del caso: Paciente que ingresa por anemia y deterioro de la función renal. Se diagnostica neoplasia de recto infiltrante tras realización de colonoscopia e inicia tratamiento renal sustitutivo tras colocación de catéter temporal. Previamente a la realización de la ileostomía se somete a radioterapia neoadyuvante. Tres meses después presenta hiperpotasemia severa persistente. Encontramos pocos casos descritos en la literatura al respecto, pero parece estar relacionado con la interrupción del tránsito intestinal. Descripción-evaluación del plan de cuidados: Se hace refuerzo dietético, se modifican los parámetros de la hemodiálisis (HD) y se inicia tratamiento con resinas, pero no se normaliza el potasio hasta el cierre de la ileostomía. Resolver la hiperpotasemia fue el objetivo imperioso del plan de cuidados, además del manejo de la ansiedad y el apoyo al paciente en el autocuidado de su estoma. Parece ser que la alteración de la homeostasia se debió al déficit de secreción intestinal de potasio en el colon. Se aceleró el proceso de restauración de la continuidad intestinal con el cierre de la ileostomía, confirmándose la sospecha. Conclusiones: La hiperpotasemia en los pacientes en tratamiento en hemodiálisis puede estar relacionada con la cirugía de colon. Nuestro caso demuestra la importancia de la secreción de potasio en el tracto intestinal para mantener la homeostasis en los pacientes con insuficiencia renal crónica terminal.
INFLUENCE OF STRUCTURAL PARAMETERS ON OPTICAL CHARACTERISTICS OF PHOTONIC CRYSTAL FIBERS WITH CIRCULAR LATTICE
Authors: Dang Van Trong , Le Tran Bao Tran , Chu Van Lanh , Nguyen Thi Hong Phuong , Trang Nguyen Minh Hang , Hoang Trong Duc , Nguyen Thi Thuy
Published: October 2022

We demonstrate in this study that near-zero, ultra-flattened chromatic dispersion can be achieved over a wide range of wavelengths in photonic crystal fibers (PCFs) by means of slight variations in the geometrical parameters of the cladding. To do that, a new solid-core circular PCF design with various air hole diameters and lattice constants is presented, and the design features are numerically analyzed in detail. After 40 simulations, we determined three structures that possess optimal dispersion with the following lattice constants (Ʌ) and filling factors for the first ring (d1/Ʌ): Ʌ = 0.8 µm, d1/Ʌ = 0.45 for #F1, Ʌ = 0.9 µm, d1/Ʌ = 0.45 for #F2, and Ʌ = 1.0 µm, d1/Ʌ = 0.45 for #F3. High nonlinearity and low attenuation are outstanding features of our model. With these advantages, the proposed fibers are targeted for smooth flat broadband supercontinuum generation for near-infrared applications.
CHANGES IN PLASMA LEVELS OF STEROID HORMONES DURING SEXUAL MATURATION OF MALE HELICOPTER CATFISH (WALLAGO ATTU) IN CAPTIVITY
Authors: Vo Duc Nghia , Le Thi Thu An , Chau Ngoc Phi , Nguyen Van Huy
Published: October 2022

In order to provide reliable indicators of the spawning season of captive helicopter catfish (Wallago attu), this study evaluated the temporal variation in gonadosomatic index (GSI), plasma levels of testosterone (T), and 11-ketotestosterone (11-KT) in male broodstock in captivity. GSI was estimated as the percentage of the relative weight of testis to total body weight. Plasma levels of sex steroids were determined by enzyme-linked immunosorbent assay (EIA). Testis samples were dehydrated and embedded in paraffin, then sectioned at 5 μm thickness. The highest level of T (402.1 ± 16.7 pg/mL) was found in June, followed by a peak in 11-KT level (76.9 ± 4.7 pg/mL) in May. Testes containing the highest concentrations of spermatozoa were observed from June to August. The GSI of males increased significantly from January to June and peaked in July (2.14%). Taken together, we conclude that the spawning season of captive helicopter catfish occurs from June to August. These results will contribute to the basic knowledge of the reproductive biology of helicopter catfish, which can be useful in artificial breeding.
Preparation of an advanced intermediate for the synthesis of leustroducsins and phoslactomycins by heterocycloaddition
Authors: Rousseau Anaïs , Vincent Guillaume , Kouklovsky Cyrille
Published: October 2022

A convergent strategy for the synthesis of leustroducsins and phoslactomycins has been designed, relying on the synthesis and the coupling of three main fragments. The central fragment was synthesized via a regio-and stereoselective nitroso Diels–Alder reaction with an enol phosphate, followed by reductive cleavage of the phosphate to the ketone 11b. Coupling studies of this fragment with the lactone fragment was accomplished in a stereoselective fashion through a vinyllithium intermediate. An advanced synthetic intermediate was then obtained after functional group transformation.
Preoperative Lung Ultrasound for Confirmation of Double-lumen Endotracheal Tube for One Lung Ventilation: a Protocol for Systematic Review and Meta-analysis
Authors:   Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan, Chang Ke-Vin
Published: October 2022

Review question / Objective: The meta-analysis aims to investigate the performance of lung ultrasound for assessing the double-lumen tube position for one lung ventilation. Condition being studied: To examine the usefulness of ultrasound in the evaluation of the double-lumen tube position for one lung ventilation. Information sources: PubMed, Scopus and Web of Science databases will be searched for the relevant studies without language restriction. Case reports, case series, conference abstracts, animal studies or those performed in laboratory settings will be excluded from the present meta-analysis.
“A STUDY ON FINANCIAL PERFORMANCE OF SELECTED TELECOM COMPANIES IN INDIA”
Authors: Barot Bhavik , Japee Gurudutta P
Published: October 2022

India stands second-largest telecommunications market in the world. As of January 2021, the total subscriber base in the country was at 1,183.49 million, while Gross revenue of the telecom sector stood at US$ 9.35 billion in the third quarter of financial year 2021. Since last five years there are lot of problems and issues faced by small companies who were brutally crushed by telecom leader. The paper is an attempt to study financial performance of major telecom companies of India after entry of Reliance JIO.
Artificial intelligence and human rights: What is the EU’s approach?
Authors: Marchenko A. Y. , Entin M. L.
Published: October 2022

Threats posed to human rights by the rapid development of artificial intelligence (AI) are considered, along with some potential legal mitigations. The active efforts of the EU in the field of AI regulation seem particularly relevant for research considering its approach centred on citizens’ rights. Thus, the present study aims to describe the key features of the EU approach to regulating AI in the context of human rights protection, as well as identifying both its achievements and deficiencies, and proposing improvements to existing provisions. The presented analysis of the proposed AI Act pays special attention to provisions that set out to eliminate or mitigate the main risks and dangers of AI. The currently intensive development of AI regulation in the EU (the Presidency Compromise Text presented by the Council of the EU, amendments of the European Committee of the Regions, opinions of interested parties and human rights organisations, etc.) makes this study especially timely due to its highlighting of problematic aspects. The analysis shows that, on closer examination, the proposed law leaves many sensitive and controversial issues unsettled. In the context of AI applications, the proposed solution is considered as an emergency measure in order to rapidly integrate purportedly trustworthy AI into human society. As a result of the analysis, the authors propose potential improvements to the AI Act, including the possibility to update the lists of all types of AI, clarify the concept of transparency and eliminate the self-assessment procedure. It is also necessary to consider the potential reclassification of some AI systems currently defined as presenting limited risk as systems presenting considerable risk or prohibited systems.
Towards Audio-Visual Resource Implementation to Enhance Language-Learning Abilities
Authors: Makena Bulelwa
Published: October 2022

For enhanced language learning abilities, the application of diverse teaching and learning resources has been noted to have some positivity towards academic attainment. This paper seeks to examine if audio-visual technologies have any significant influence towards enhancing learner abilities in language learning. Supplementarily, teacher-learner engagement that lacks implementation of the necessary learning gadgets, leads to both teachers and learners being overwhelmed more so in the administration of the English language which is not a home dialect for most learners. Additionally, a vast percentage of courses or subjects reinforcing the curriculum are offered in the English language medium. This investigation is embedded in a qualitative approach entrenched in a case study design, where three university English language teachers from an institution situated in a rural environment were conveniently identified and interviewed using semi-structured interviews as a data collection instrument to examine the problem’s intricate phenomenon. It emerged from the study findings that learning progressions with infused audio-visual resources encourage learner participation. This paper investigates whether teachers in schooling environments give learners access to interrogate audio-visual learning resources on their own, thus catering for learner-centredness. The paper concludes that such technologies are a foundation for effective learning. It becomes essential for learners’ speaking, reading and academic writing skills to advance. The Authors, therefore, recommend re-visiting the consistent use of audio-visual gadgets as means to cater for learners with impairments, thereby closing gaps and learner barriers for diverse cohorts.

Keywords: Diversity, Academic attainment, Participation, Learning barriers, Technology Learning
An Analytical Study of the Translations of Genesis 1:26-27 in the Akuapem-Twi Bible
Authors: Twumasi-Ankrah Emmanuel , Antwi Emmanuel Kojo Ennin , Wiafe Frimpong , Boaheng Isaac
Published: October 2022

In Ghana, the Western missionaries who introduced Christianity into the country reduced some Ghanaian languages into written form and then translated the Bible into these languages. After the missionaries left the country, the task of Bible translation was continued by Ghanaians to make the Bible accessible to various linguistic groups in the country. Out of the numerous problems that Bible translators encounter in their work is the non-availability of a word in the receptor languages to carry the exact meaning of a word in the source language. This and other challenges sometimes lead to obscurity in the translated text and the resulting theology. Of interest to the present paper, is the translation of Genesis 1:26-27 into Akuapem-Twi mother- tongue. As an exegetical study, the source texts were semantically and morpho-syntactically analysed and their renderings in the Akuapem-Twi Bible were compared. The philosophy behind the texts under study in the Akan/Twi Bibles could be largely, formal or literal equivalence (word-for-word). Though in some instances in all the Twi dialects and some other instances, in one or two dialects, the translators employed the dynamic equivalence (thought-for- thought) approach. In each of the instances, the approach adopted has either aided or distorted the interpretation of the target text. The rendering of the text (Gen.1:26-27) in the Akuapem-Twi Bible presents deviations from the source text and should consequently be revised and reread. For instance, after a careful study of ancient (source) texts such as the Masoretic Text, Septuagint and Targum Pseudo-Jonathan and their comparison with the Akuapem-Twi Bible translation concerning Genesis 1:26-27, this paper argues that the Hebrew verb āsāh (v. 26), translated as bcc, “created” could be rendered as yɔɔ/yjj, “made” and the pronoun, ‘ōṯo (v. 27), presented as wɔn, “them” should be interpreted as no, “him,” in order to establish literary consistency with the source texts.

Keywords: Bible Translations, Akan Bibles, Akuapem-Twi, Genesis 1:26-27
MENTORING MODEL AINUL YAKIN THERAPY ISLAMIC BOARDING SCHOOL IN IMPLEMENTING ISLAMIC VALUES IN THE COMMUNITIES OF KARANGTENGAH, TEPUS, GUNUNGKIDUL
Authors: Alfarisi Salman , KHONSA ROFIDAH
Published: October 2022

Research purposes:To find out how the mentoring model carried out by the Ainul Yakin Islamic boarding school in instilling Islamic values ​​into the people of Krangtengah Hamlet, Tepus, Gunungkidul. Research Methods: Qualitative. The results of the study: The mentoring model carried out was categorized into four stages, namely First, Assistance by providing facilities to the community, in the form of providing a place, providing study materials through recitations held by the Islamic boarding school, activities for managing corpses and fostering ta'mir mosques. in Karangtengah Hamlet. Second, assistance through strengthening, namely by providing religious guidance to the community, involving the community to become employees of Islamic boarding schools, mutual cooperation and training. Third, assistance on the aspect of protection, Islamic boarding schools protect the community from the threat of the Plecit bank that ensnares residents. Fourth, the stage of support, implemented in the form of support for Islamic boarding schools in providing facilities and infrastructure for the community da'wah process.
YOUTH EMPOWERMENT THROUGH THE BASIC MECHANICAL ENGINEERING EDUCATION AND TRAINING PROGRAM (DIKLAT) AT THE HADAIDA TECHNICAL CENTER BEKASI JOB TRAINING CENTER
Authors: Hanif Muhammad , Hakim Samsir
Published: October 2022

Research Objectives: To find out and obtain an overview of the stages and results of Youth Empowerment through the Basic Mechanical Engineering Education and Training Program by the Hadaida Technical Center for Job Training. Research method: Qualitative. Results: The empowerment stages carried out by the Hadaida Technical Center were considered successful, because they were directly proportional to the results obtained by empowered education and training alumni, not only in terms of mechanical engineering, but also in the religious field. So that the alumni become better than before. The composition of education and training at the Ahadaida Center is 75% practical and 25% theory. The stages used are the awareness stage, the ability transformation stage, and the intellectual ability improvement stage
PATTERNS OF EMPOWERMENT OF SALIMAH DAKWAH INSTITUTIONS IN IMPROVING THE QUALITY OF WOMEN IN SELATPANJANG REGENCY OF MERANTI ISLANDS, RIAU PROVINCE
Authors: Anam Ahmad Misbahul , NIFTAHUL JANNAH
Published: October 2022

Empowerment of women requires serious efforts, because of its strategic position in the natural life of Indonesia. Although the economic responsibility rests on the shoulders of men, family life always places women in almost the same position. Especially for underprivileged families or when women are left by their husbands. Women are forced to be the support of the family in various sectors. The Salimah Institute, which focuses on dealing with women, tries to provide empowerment assistance in the Selatpanjang area of ​​the Meranti Archipelago, Riau. The process is carried out through awareness, training and building opportunities for development.
Orbital Dynamics Landscape near the Most Distant Known Trans-Neptunian Objects
Authors: Volk Kathryn , Malhotra Renu
Published: October 2022

The most distant known trans-Neptunian objects (TNOs), those with perihelion distance above 38 au and semimajor axis above 150 au, are of interest for their potential to reveal past, external, or present but unseen perturbers. Realizing this potential requires understanding how the known planets influence their orbital dynamics. We use a recently developed Poincaré mapping approach for orbital phase space studies of the circular planar restricted three-body problem, which we have extended to the case of the 3D restricted problem with N planetary perturbers. With this approach, we explore the dynamical landscape of the 23 most distant TNOs under the perturbations of the known giant planets. We find that, counter to common expectations, almost none of these TNOs are far removed from Neptune’s resonances. Nearly half (11) of these TNOs have orbits consistent with stable libration in Neptune’s resonances; in particular, the orbits of TNOs 148209 and 474640 overlap with Neptune’s 20:1 and 36:1 resonances, respectively. Five objects can be ruled currently nonresonant, despite their large orbital uncertainties, because our mapping approach determines the resonance boundaries in angular phase space in addition to semimajor axis. Only three objects are in orbital regions not appreciably affected by resonances: Sedna, 2012 VP113 and 2015 KG163. Our analysis also demonstrates that Neptune’s resonances impart a modest (few percent) nonuniformity in the longitude of perihelion distribution of the currently observable distant TNOs. While not large enough to explain the observed clustering, this small dynamical sculpting of the perihelion longitudes could become relevant for future, larger TNO data sets.
Learning Cosmology and Clustering with Cosmic Graphs
Authors: Villanueva-Domingo Pablo , Villaescusa-Navarro Francisco
Published: October 2022

We train deep-learning models on thousands of galaxy catalogs from the state-of-the-art hydrodynamic simulations of the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project to perform regression and inference. We employ Graph Neural Networks (GNNs), architectures designed to work with irregular and sparse data, like the distribution of galaxies in the universe. We first show that GNNs can learn to compute the power spectrum of galaxy catalogs with a few percent accuracy. We then train GNNs to perform likelihood-free inference at the galaxy-field level. Our models are able to infer the value of Ωm with a ∼12%–13% accuracy just from the positions of ∼1000 galaxies in a volume of

(
25

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Mpc
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3

at z = 0 while accounting for astrophysical uncertainties as modeled in CAMELS. Incorporating information from galaxy properties, such as the stellar mass, stellar metallicity, and stellar radius, increases the accuracy to 4%–8%. Our models are built to be translation and rotation invariant, and they can extract information from any scale larger than the minimum distance between two galaxies. However, our models are not completely robust: testing on simulations run with a different subgrid physics than the ones used for training does not yield accurate results.
Evaluating the Plausible Range of N2O Biosignatures on Exo-Earths: An Integrated Biogeochemical, Photochemical, and Spectral Modeling Approach
Authors: Schwieterman Edward W. , Olson Stephanie L. , Pidhorodetska Daria , Reinhard Christopher T. , Ganti Ainsley , Fauchez Thomas J. , Bastelberger Sandra T. , Crouse Jaime S. , Ridgwell Andy , Lyons Timothy W.
Published: October 2022

Nitrous oxide (N2O)—a product of microbial nitrogen metabolism—is a compelling exoplanet biosignature gas with distinctive spectral features in the near- and mid-infrared, and only minor abiotic sources on Earth. Previous investigations of N2O as a biosignature have examined scenarios using Earthlike N2O mixing ratios or surface fluxes, or those inferred from Earth’s geologic record. However, biological fluxes of N2O could be substantially higher, due to a lack of metal catalysts or if the last step of the denitrification metabolism that yields N2 from N2O had never evolved. Here, we use a global biogeochemical model coupled with photochemical and spectral models to systematically quantify the limits of plausible N2O abundances and spectral detectability for Earth analogs orbiting main-sequence (FGKM) stars. We examine N2O buildup over a range of oxygen conditions (1%–100% present atmospheric level) and N2O fluxes (0.01–100 teramole per year; Tmol = 1012 mole) that are compatible with Earth’s history. We find that N2O fluxes of 10 [100] Tmol yr−1 would lead to maximum N2O abundances of ∼5 [50] ppm for Earth–Sun analogs, 90 [1600] ppm for Earths around late K dwarfs, and 30 [300] ppm for an Earthlike TRAPPIST-1e. We simulate emission and transmission spectra for intermediate and maximum N2O concentrations that are relevant to current and future space-based telescopes. We calculate the detectability of N2O spectral features for high-flux scenarios for TRAPPIST-1e with JWST. We review potential false positives, including chemodenitrification and abiotic production via stellar activity, and identify key spectral and contextual discriminants to confirm or refute the biogenicity of the observed N2O.
Immediate Origin of the Moon as a Post-impact Satellite
Authors: Kegerreis J. A. , Ruiz-Bonilla S. , Eke V. R. , Massey R. J. , Sandnes T. D. , Teodoro L. F. A.
Published: October 2022

The Moon is traditionally thought to have coalesced from the debris ejected by a giant impact onto the early Earth. However, such models struggle to explain the similar isotopic compositions of Earth and lunar rocks at the same time as the system’s angular momentum, and the details of potential impact scenarios are hotly debated. Above a high resolution threshold for simulations, we find that giant impacts can immediately place a satellite with similar mass and iron content to the Moon into orbit far outside Earth’s Roche limit. Even satellites that initially pass within the Roche limit can reliably and predictably survive, by being partially stripped and then torqued onto wider, stable orbits. Furthermore, the outer layers of these directly formed satellites are molten over cooler interiors and are composed of around 60% proto-Earth material. This could alleviate the tension between the Moon’s Earth-like isotopic composition and the different signature expected for the impactor. Immediate formation opens up new options for the Moon’s early orbit and evolution, including the possibility of a highly tilted orbit to explain the lunar inclination, and offers a simpler, single-stage scenario for the origin of the Moon.
Life on Exoplanets in the Habitable Zone of M Dwarfs?
Authors: Childs Anna C. , Martin Rebecca G. , Livio Mario
Published: October 2022

Exoplanets orbiting in the habitable zone around M dwarf stars have been prime targets in the search for life due to the long lifetimes of the host star, the prominence of such stars in the galaxy, and the apparent excess of terrestrial planets found around M dwarfs. However, the heightened stellar activity of M dwarfs and the often tidally locked planets in these systems have raised questions about the habitability of these planets. In this Letter we examine another significant challenge that may exist: these systems seem to lack the architecture necessary to deliver asteroids to the habitable terrestrial planets, and asteroid impacts may play a crucial role in the origin of life. The most widely accepted mechanism for producing a stable asteroid belt and the late-stage delivery of asteroids after gas disk dissipation requires a giant planet exterior to the snow-line radius. We show that none of the observed systems with planets in the habitable zone of their star also contain a giant planet and therefore are unlikely to have stable asteroid belts. We consider the locations of observed giant planets relative to the snow-line radius as a function of stellar mass and find that there is a population of giant planets outside of the snow-line radius around M dwarfs. Therefore, asteroid belt formation around M dwarfs is generally possible. However, we find that multiplanetary system architectures around M dwarfs can be quite different from those around more massive stars.
The Formal Model article format: justifying modelling intent and a critical review of data foundations through publication
Authors: Topping Christopher John , Kondrup Marcussen Luna , Thomsen Peet , Chetcuti Jordan
Published: October 2022

Documenting complex models has long been a problem. Models are currently developed, implemented, and applied before review. Combined this leads to details hidden in the appendices or too little detail in the methods section to be reproducible. Modellers involve reviewers too late in the process. This does not allow them to flag issues, suggesting redesigns and reruns only after the analysis is complete. We propose splitting the model documentation, before analysis, into three steps: the Formal Model, Implementation Documentation, and Evaluation and Testing. Researchers can then use the well-built model for analysis. We introduce the first of these, the Formal Model as a peer-reviewed paper format that lays out the intentions for the model. The Formal Model includes reviewed literature that identifies the components of the model. Lays out the theoretical framework, modelling approaches and externalities. Plans to implement each process, with equations, descriptions, state variables and scales. Finally, the Formal Model gives the model’s strengths, weaknesses, exclusions, and place in the literature. We provide a flexible template for a Formal Model to aid in establishing a new common format.

The Formal Model aims to improve transparency and provide a formal approach to documentation. Reviewers can help improve the model by identifying problems early. The Formal model contains the details needed to allow for reproducibility. It also encourages modellers to think about the consequences of what is and is not included within the model. And finally, it gives the credit that modellers deserve for the involved process of creating a model.
Revision of the genus Urvaschia Hopp (Hemiptera, Lygaeoidea, Oxycarenidae), with descriptions of two new species from China and Nepal
Authors: Gao Cuiqing , Xiao Shiya , Kondorosy Előd
Published: October 2022

The species of Urvaschia Hopp, 1987 are reviewed. The following taxonomic change is proposed: Urvaschia obscuripennis (Kiritshenko, 1914), comb. nov. (transferred from Microplax Fieber, 1860). The genus Urvaschia Hopp is newly recorded from Afghanistan, China, Iran, and Tadzhikistan. Two new species of Urvaschia, Urvaschia convexasp. nov. and U. rectasp. nov. are described from China and Nepal. A diagnosis of the genus, a key to all of the included species, habitus photographs, and male genitalia illustrations of selected species are presented.
Du don des objets de luxe à la dette sacrée de la société envers les siens. La question du luxe pendant la période révolutionnaire (1789-1794)
Authors: Wahnich Sophie
Published: October 2022

Les patriotes révolutionnaires, dès 1789, considèrent comme Rousseau qu’« on a de tout avec de l’argent, hormis des mœurs et des citoyens ». Mais, pour Helvétius, la convoitise des objets de luxe éloigne la paresse et récompense le travail. Trois types d’objets matériels sont considérés dans cet article pour saisir comment ces deux visions organisent le rapport au luxe chez les révolutionnaires : la parure, les sucreries, l’habitat. Mais le véritable luxe révolutionnaire n’a pas de prix, la vertu et la liberté supposent un luxe égalitaire, celui d’une dette sacrée de la société à l’égard de chacun des citoyens quant à l’assistance et à l’éducation, la contemplation du beau dans des musées ouverts à tous.
Manières de faire des modes
Authors: Simmenauer Benjamin
Published: October 2022

La distinction entre vêtements ordinaires et vêtements de créateur est essentielle à la constitution d’une mode de luxe. On montre que cette différence dépend de propriétés sémantiques des objets considérés, et non de propriétés matérielles ou de mécanismes institutionnels.
La Première dame et la princesse. Usages du luxe chez Eva Perón et Diana Spencer, entre style et politique
Authors: Coladonato Valerio
Published: October 2022

L’article retrace et compare les usages du luxe dans l’image publique d’Eva Perón et de Diana Spencer. L’intensité affective générée par ces deux personnages historiques dans leur interpellation du « peuple » est interprétée à la lumière de l’« excès » du luxe, et de sa capacité à faire imaginer une rupture des hiérarchies sociales (qu’elle soit réalisée ou pas). Le charisme d’Evita est relu non pas comme un phénomène individuel, mais comme résultat de la convergence entre l’État péroniste, le système médiatique et la « mélodramatisation » de la politique. Il est également suggéré que ses usages du luxe doivent être considérés dans le contexte d’un programme de « justice esthétique », comme forme de redistribution au peuple argentin. On retrace la « trajectoire d’autonomisation » de Diana à travers l’évolution de la rhétorique visuelle dans les photographies de presse à scandale et de mode. Prise entre l’institution royale et le star-système, elle développe un style vestimentaire pour ses activités humanitaires. Le deuil qui suit sa disparition est mis en relation avec la persistance d’un imaginaire postcolonial dans son iconographie. La Première dame et la princesse. Usages du luxe chez Eva Perón et Diana Spencer, entre style et politique
« Je n’ai peur de rien »
Authors: Chapin Angelina , Hervieu-Léger Benoît , Dubosq Clémence
Published: October 2022

La Protection judiciaire de la jeunesse a pour charge d’accompagner les mineurs délinquants. Comment parvient-elle à les arracher à la violence ? Entretien avec une directrice de service.
Un procès pacificateur
Authors: Salas Denis
Published: October 2022

Le procès des attentats du 13 Novembre a traduit l’effort de reconstitution d’une société éprouvée par la violence extrême. Le regard d’un ancien juge, historien de la justice, sur ces 148 jours d’audience.
Un lien consubstantiel
Authors: Kirch Noé
Published: October 2022

Démocratie et écologie ne sont pas seulement conciliables. La philosophe Joëlle Zask les tient pour indissociables dans l’expérience d’être au monde en pleine responsabilité.
REGULATING AUTONOMOUS SHIPPING- A CASE STUDY
Authors: Soyer B
Published: October 2022

This paper intends to elaborate regulatory and legal challenges that need to be addressed to make autonomous shipping a reality in UK waters. It concludes that it will be within the remit of different regulatory bodies to deal with the legal and regulatory challenges ahead. For example, the Marine and Coastguard Agency (MCA) is expected to provide regulatory
solutions to issues concerning safety and technological requirements of MASSs. Port and harbour authorities need to specify the conditions that a MASS should comply with to gain access into areas that come under their jurisdiction. There is also a requirement to deal with issues concerning pilotage by competent harbour authorities. It is also concluded that legislative changes are needed to clarify matters concerning liability (collision liability and product liability), limitation of liability and salvage that might emerge.
AUTONOMOUS SHIP CONTROL IN SHALLOW AND CONFINED WATER
Authors: Van Zwijnsvoorde T , Lataire E He H , Delefortrie, G
Published: October 2022

The paper describes the definition and usage of autonomous ship control systems in shallow and confined water. The application of such control system is shown in a case study : a systematic analysis of ship transits in the approach channel to the Port of Antwerp (Western Scheldt) .The control algorithm not only is capable of correctly navigating the ship through the fairway, it also delivers insight in rudder and propeller usage in function of the tidal conditions. Such control systems are validated based on model tests carried out in towing tanks. Flanders Hydraulics Research (FHR) has recently inaugurated their second towing tank, the Towing Tank for Manoeuvres in Shallow Water. One of the functionalities of this facility is the role it can play as test basin for autonomous shipping. Next to the further validation and expansion of existing control scenarios, it will be used to model interaction events between multiple ships. A numerical effort to model interaction events is presented, which will be validated in the model test basin.
THE RELEVANCE OF THE LAW OF TREATIES IN THE INTRODUCTION OF MASS OPERATIONS – UNCLOS & SOLAS
Authors: Sumer M
Published: October 2022

This paper seeks to analyse the relevance of the law of treaties in general, and the importance of the evolutionary treaty interpretation in particular for the realisation of MASS operations. The exploration of the UNCLOS reveals its framework character which has the required flexibility to adjust to changing circumstances for the progressive development of the law of the sea regime. Based on the UNCLOS system, IMO as the “competent international organization” lays out the detailed technical regulations and standards. Indeed, with its norm setting charachter in shipping IMO has the competence and required tools to address and respond to possible disruptive effects of emerging technology. For the introduction of remotely controlled MASS operations, such ships can be regarded as ships without formally amending UNCLOS by means of evolutionary treaty interpretation. Furthermore, amending SOLAS regulations by means of tacit acceptance and/or adopting a new Code under SOLAS, in particular to designate a Senior Remote Operator (SRO) to assume the safety obligations of Master is crucial for the integration of MASS into shipping.
STREAMLINING THE SHIP STRUCTURAL OPTIMIZATION PROCESS BY USING AN EARLY 3D PRODUCT MODEL
Authors: Amano M , Tanaka Y , Masui T , Hulkkonen T
Published: October 2022

Optimization of ship structure has been a target for ship designers ever since the beginning of modern shipbuilding. At the same time, class society rules and regulations have been continuously evolving and guiding shipbuilders in their use of more advanced methods and tools, which will further facilitate the optimization of structures against the latest knowledge. This paper presents the results of a project in which the whole rule-based structural optimization process is built inside one technology platform.

This platform combines the necessary modelling work, prescriptive rule check, FEM-based rule check and further weight and other calculations in one automated and streamlined process. This will have a tremendous effect on the throughput time of iteration cycles. The paper will present the process and technologies used for integrating the different components into the common design platform. It will also show some results achieved in a commercial cargo ship design.
WIND ASSISTED PROPULSION: INVESTIGATIONS ON THE USE OF SHIP HOLISTIC MODELS FOR PERFORMANCE ANALYSIS
Authors: Bellot A , Ölçer A I , Baumler R , Bouallou C , Nemer M
Published: October 2022

Wind propulsion is one of the most promising technologies to reduce carbon intensity of ships. However, with variable thrust production and induced drift action, sail’s contribution to propulsion is to be evaluated in different ways from traditional propulsors. For sail retrofit projects, where vessels are initially designed to be optimal at single transit speeds with propulsion engine, wind assistance may also induce a degradation of operational efficiency and limit the extend of energy savings. For these reasons, performance analysis should evolve to account for complex energy transfers between propulsion domain and energy systems. A novel Modelica based model is presented in this article, where manoeuvres and energy modelling are used jointly to predict overall efficiency of wind assisted ship concepts. The model is used to evaluate
the impact of retrofitting 4 Flettner rotors on the Duisburg test case (DTC) equipped with diesel engines mechanical propulsion system, with oil fired and exhaust gases steam plants and electricity generation from gensets and turbogenerator. Finally, from the analysis of DTC performance in a sweep of wind conditions, potential solutions to
increase sailing efficiency are presented, offering new research directions in vessel design adaptation to natural propulsion.
SIMULATION TECHNIQUES IN THE DEVELOPMENT OF THE QUIESCENT PERIOD PREDICTION (QPP) FLIGHT DECK MOTION FORECASTING TOOL
Authors: Ferrier B , Taylor R J , Belmont M R , Christmas J , Fedrick L
Published: October 2022

Quiescent Period Prediction (QPP) purpose is to provide ship motion conditions and motion predictions with sufficient forecasted time to launch, recover, and complete other motion sensitive tasks regardless of the seaway. QPP operates
within a federated architecture system containing measurement instruments such as a Wave Radar system used to map remote sea surfaces several hundred meters in advance of the ship. This enables the computation of future wave forces
acting on the virtual vessel. Quiescent Period Prediction (QPP) system achieves this from the measured sea surface, a short-term deterministic wave model can be constructed allowing the wave system to be propagated to the ship's location.
The ability to fully define a ship’s motion as a function of a recovery device, greatly enhances the overall system operational capability whilst fundamentally reducing the inherent risks associated with platform manipulation in high sea conditions. This article describes launch and recovery simulation model and the corresponding verification and validation of the QPP data program testing the accuracy of the simulation modeling. Verification information is discussed regarding the sensor operation and interfaces collected during this trial; a QPP simulation design specification is being produced based on High Level Architecture (HLA) technics. From initial simulation and trial results, QPP has been shown to offer the ability for operators to identify the most favourable deck motion periods to recover an approaching vehicle. The next challenge being studied from the data results is a notional navigational guidance system tool and visual landing aid to be trialled by simulation.
A ROUTE PLANNING METHOD FOR COASTAL NAVIGATION OF SMALL SHIPS
Authors: Jeong D G , Roh M I , Kim K S , Lee J S , Kim D H , Jang W S
Published: October 2022

This study proposes route planning considering the characteristics of small ships sailing on coasts. An electronic chart based on the S-57 standard object and attributes catalogue was used. A Quadtree data structure was used for modelling an environment for route planning. The main idea of Hierarchical Pathfinding A* (HPA*) was adapted to our route planning algorithm. The route planning method proposed in this study can find route for small ships within a short time that the users can understand. In addition, it consumes little computer resources so that there is no difficulty in operating it on the computer of the small ships. In addition, the program was verified by conducting route planning tests in various areas along the coastal areas of Korea.
ACCELERATING JAPANESE SHIPBUILDING DX ADOPTION
Authors: Larkins D , Crook S , Goulanian G
Published: October 2022

Japanese shipbuilding has long been recognized for the production and on-time delivery of high-quality, innovative ships. Japanese shipyards will continue to remain competitive in an ideal future because of these factors. However, shipbuilding in Japan faces several internal and external challenges that put this future at risk: a generation of highly skilled experts retiring from the workforce, a reliance on institutional knowledge, more competition from abroad, and a demand for new innovative ship types. In addition, Japanese shipbuilders have not evolved their businesses to take advantage of the process enhancements digital technologies support, further adding to the risk of falling behind.

This paper defines DX in the context of shipbuilding and examines how Japanese shipbuilders can accelerate DX within their organizations to stay globally competitive for the long term and overcome industry-wide risks. This paper will also offer a starting point for a DX framework that will help the Japanese shipbuilding industry avoid the digital cliff.