bluuebunny/crossref_metadata_2025 huggingface dataset:
High-Fidelity CT-on-Rails-Based Characterization of Delivered Dose Variation in Conformal Head and Neck Treatments
Authors: Dai Haocheng , Sarkar Vikren , Dial Christian , Foote Markus D. , Hitchcock Ying , Joshi Sarang , Salter Bill J.
Published: August 2024

Objective:

This study aims to characterize dose variations from the original plan for a cohort of patients with head and neck cancer (HNC) using high-quality CT on rails (CTOR) datasets and evaluate a predictive model for identifying patients needing replanning.

Materials and Methods:

In total, 74 patients with HNC treated on our CTOR-equipped machine were evaluated in this retrospective study. Patients were treated at our facility using in-room, CTOR image guidance—acquiring CTOR kV fan-beam CT images on a weekly to near-daily basis. For each patient, a particular day’s treatment dose was calculated by applying the approved, planned beam set to the postimage-guided alignment CT image of the day. Total accumulated delivered dose distributions were calculated and compared with the planned dose distribution, and differences were characterized by comparison of dose and biological response statistics.

Results:

The majority of patients in the study saw excellent agreement between planned and delivered dose distribution in targets—the mean deviations of dose received by 95% and 98% of the planning target volumes of the cohort are −0.7% and −1.3%, respectively. In critical organs, we saw a +6.5% mean deviation of mean dose in the parotid glands, −2.3% mean deviation of maximum dose in the brainstem, and +0.7% mean deviation of maximum dose in the spinal cord. Of 74 patients, 10 experienced nontrivial variation of delivered parotid dose, which resulted in a normal tissue complication probability (NTCP) increase compared with the anticipated NTCP in the original plan, ranging from 11% to 44%.

Conclusion:

We determined that a midcourse evaluation of dose deviation was not effective in predicting the need for replanning for our patient cohorts. The observed nontrivial dose difference to the parotid gland delivered dose suggests that even when rigorous, high-quality image guidance is performed, clinically concerning variations to predicted dose delivery can still occur.
PERAN ISTRI DALAM UPAYA MENINGKATKAN PEREKONOMIAN RUMAH TANGGA DITINJAU DARI EKONOMI ISLAM
Authors: Kaltin  , Sri Deti  , Kamil
Published: August 2024

This research departs from the phenomenon due to poverty pressure and further development of the economy and technology, at least in the last decade slowly the participation of women in the public sector seems to be increasing. Women are increasingly visible in economic resources that are no less important than men. Thus, the success of a family in forming a prosperous household cannot be separated from the role of a woman who is so big. The aims of this study were to: 1) Analyze the role of the wife in the household economy in the Tebas People's Market, Tebas District, Sambas Regency. 2) Analyzing the role of the wife in an effort to improve the household economy from the perspective of Islamic economics. This research is classified as a qualitative research and case study type. Data collection techniques through observation, interviews and documentation. Data analysis uses an interactive analysis model which includes data reduction, data display, and verification/drawing of conclusions. Based on the results of the discussion, it can be concluded: 1) The role of the wife in improving the economy can already be seen from the role of a woman (housewife in Tebas People's Market) who helps a lot to advance the family economy by taking part in earning a living as a worker. 2) Regarding the Islamic economic review regarding the role and contribution of women in working and increasing family income, respondents have been able to fulfill the Maslahah Dharuriyat, and Hajiyyah levels, while Maslahah Tahsiniyat has not been able to be fulfilled, the work of the female workforce illustrates that by working the wife/housewife participates. feel the struggle of a husband in earning a living in order to be able to create prosperity in the family, because the income earned is also used to meet basic daily needs and also outside basic affairs such as children's education.
Keywords: economy, household, islamic, wife role
The Influence Of Motivation and Self Efficacy On Students' Interest In Careers In Taxation With Voluntability As Moderation
Authors: Kastanya Mensy Otelyo , Ilham Mohammad , Ipijei Irene , Romdioni Agus Nisfur
Published: August 2024

This study aims to examine the effect of motivation and self-efficacy on student interest in a career in taxation with volunteerism as a moderating variable. The sampling technique in this study used purposive sampling, the samples obtained in this study were 50 students according to the criteria, namely students who took a tax concentration in the accounting department of the Faculty of Economics and Business at Musamus University. Data analysis technique uses Partial Least Square (PLS). The results showed that motivation had a positive effect on student interest in taxation (X1), Self Efficacy had a positive effect on student interest in taxation (X2), Volunteering did not moderate self-efficacy on student interest in taxation.
Penerapan Media Pembelajaran Berbasis ICT (Information Communication Technologi) dalam Meningkatkan Belajar Siswa
Authors: Muchlasin Imam , Ambarwati Risti Uji , Diyan Diyan , Muyasaroh Kun , W Rahma Ayu
Published: August 2024

Penelitian ini bertujuan untuk menginvestigasi dampak penerapan media pembelajaran berbasis Teknologi Informasi dan Komunikasi (ICT) terhadap prestasi belajar siswa. Metode penelitian eksperimental digunakan dengan merancang suatu model pembelajaran yang memanfaatkan berbagai media berbasis ICT, seperti komputer, internet, dan aplikasi pembelajaran interaktif. Penelitian ini dilakukan kepada kelompok siswa yang dalam pemebelajaranya menggunakan media pembelajaran berbasis ICT. Data prestasi belajar dikumpulkan melalui metode observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa penerapan media pembelajaran berbasis ICT secara signifikan meningkatkan prestasi belajar siswa. Kelompok siswa atau kelas yang mendapatkan pembelajaran berbasis ICT ini menunjukkan peningkatan yang lebih baik.
Bottom-Up Projection of Regional Carbon Emissions from Passenger Road Vehicles Based on Discrete-Time Markov Chain
Authors:   The Korean Data Analysis Society, Kyumin Yeom Kyumin Yeom , Sanghoon Ha Sanghoon Ha , Kiseong Kim Kiseong Kim , Soohyun Kim Soohyun Kim , Minseok Jeon Minseok Jeon , Young Jin Kim Young Jin Kim
Published: August 2024

Accounting for a significant portion of global carbon emissions, the road transportation sector is unequivocally one of the largest emitter among various sectors and a wide variety of mitigation measures has been developed and adopted. The estimation of carbon emissions is a prerequisite for assessing the effectiveness of individual measures. This study outlines the estimation of carbon emissions from road transport based on a discrete-time Markov chain employed to describe the population of road vehicles by fuel type over time. The procedure outlined in the IPCC Guidelines for National Greenhouse Gas Inventories is adopted to estimate the carbon emissions based on the country-specific parameters, which is then applied to the projection of regional carbon emissions from road transport in the Metropolitan Busan City, Republic of Korea. More specifically, country-specific parameters are derived from publicly available data related to carbon emissions from road transport. It is asserted that publicly available data can be effectively collated and incorporated to develop the discrete-time Markov chain to estimate the population of road vehicles, based on which carbon emissions from road transport can then be estimated.
Peran Serta Masyarakat Dalam Pengelolaan Lahan Sebagai Rumah Sayur Guna Memenuhi Kebutuhan Pangan Keluarga
Authors: Mahardika Leonard Dipra , Afifarkhan Lutfi , Firmansyah Alvian Haris , Sari Lilis Laras , Lestari Reni Wiji , Saraswati Dwi Ayu , Islami Noni Febi , Agasi Ema Nadia , Pujiyanti Dwi Herlina
Published: August 2024

Pemanfaatan lahan di wilayah pedesaan yang belum dimanfaatkan secara optimal merupakan fenomena biasa dan banyak dijumpai. Sebagian warga belum memanfaatkan lahan untuk menunjang kebutuhan sehari-hari maupun perekonomian. Tujuan kegiatan pengabdian yaitu memberikan edukasi kepada warga tentang pengelolaan lahan sebagai rumah sayur. Metode yang digunakan yaitu ceramah dan praktek dalam mengelola laham sebagai rumah sayur. Mitra yang terlibat adalah warga masyarakat di desa Tanjungrejo, kecamatan Bayan, kabupaten Purworejo. Hasil kegiatan menunjukkan peningkatan kesadaran dan peran serta warga masyarakat dalam memanfaatkan lahan dengan ditanami aneka jenis sayur mayur terutama pada lahan pekarangan.
Deployment of the Consolidation System of Donnees Dans Une Admnistration Aeronautique: Application of a La Rva/Ville De Kananga and Republique Democratique Du Congo
Authors: Buambaka Seraphin Buambaka
Published: August 2024

This article examines the technical specifications of the Aeronautique Administration of the Régie des Voies aériennes of the Ville de Kananga and Republic of Democratic Republic of Congo in the gestion and the consolidation of the aeronautique données, as well as the possible solutions for remédier. We present different types of system development processes, including the availability of aspects of techniques, organizations and operations in the context. Finally, the study proposes an analysis of the resulting results after the mise in the donation consolidation system, which is consistent with the lumière of advanced and existing events.
Gestión de residuos industriales, basado en las buenas prácticas de las 3 RS
Authors: Lugo Romero Fabian Antonio , Molinas Garcete Guido Bernardo , Gamarra Zalazar Luisa Del Pilar
Published: August 2024

Conforme se menciona en la Ley 567/1995, se considera como residuos industriales a aquellas sustancias o elementos resultantes de los procesos industriales o productos que han sido adquiridos y/o desechados y que por sus características ya sean explosivas, tóxicas, infecciosas, radioactivas, corrosivas, oxidante, inflamables, pueden causar riesgos presentes y futuros a la calidad de vida de las personas o afectar el suelo, la flora, la fauna, contaminar el aire o las aguas de manera tal que dañen la salud humana o ambiental del país. En ese sentido, el trabajo de investigación se propone como objetivo principal, determinar el manejo de los residuos industriales, en talleres automotrices. Caso Taller Segobia de la Ciudad de San Ignacio Misiones; como objetivos específicos se propone identificar los residuos que se producen, conocer el tratamiento que se da a los residuos y realizar sugerencias en cuanto al manejo de los residuos atendiendo las buenas prácticas basadas en las 3 R. La investigación se corresponde a las líneas de investigación de la carrera Desarrollo sostenible y proceso de residuos y contaminación industrial. Se adecua a un estudio de caso, responde al tipo de estudio  descriptivo, e implementa el método cualitativo. La Población y muestra está conformada por el propietario y empleados del “Taller Segovia”, ubicado en la ciudad de San Ignacio Misiones, donde se llevará a cabo el estudio y responsable del área ambiental de la Municipalidad. Implementará instrumentos de recolección de datos como la entrevista. A fin de realizar sugerencias se tendrá en cuenta los resultados y los aspectos legales en cuanto al tratamiento de los residuos industriales.
Mortality in Patients with Intertrochanteric Fracture Operated Between 2019-2021 in a High Complexity Institution
Authors: Arévalo Vallejo Hanna Maria , Cárdenas Gasca David Cantalicio , Paredes Bravo Ana Maria , Cobo Mejía Elisa Andrea , Suárez María Alejandra , Blanco Rivas Nicolás , Lafaurie Bayter Natalia C , Saez Vargas Jineth Valentina
Published: August 2024

Objective: It was defined to determine mortality in adult patients with this type of fracture who underwent surgery between 2019 and 2021 in a first-level complexity institution. Method: An analytical, cross-sectional, retrospective study was carried out. Results: Finding a significant association between the origin, the classification of the fracture, and the associated injuries concerning mortality, but these variables did not behave as predictors of it. The Kaplan-Meier analysis showed that survival decreases concerning the time of the intervention from 20 hours post-surgery, with an average of 44.3 hours (95% CI: 736-909), but with no statistically significant difference (p=0.388). Conclusion: Mortality in adult patients with intertrochanteric fractures taken to surgical management may be associated with age, gender, delay in the time of care, delay in the time of surgical intervention, and ethnicity. However, a greater number of studies are required to assess with higher accuracy the behaviour of mortality in adult patients with intertrochanteric fractures taken to surgical management. Consequently, acquiring an enrich understanding in terms of evidence and favouring even deeper data of the outcome of surgical management in these cases.
Production, Marketing and Future Prospects of Mandarin in Nepal
Authors: Regmi Anmol , Dhungana Surya Mani
Published: August 2024

Mandarin (Citrus reticulata) is a vital fruit crop in Nepal, where its demand is very high and has been produced as the main source of income in the hilly region. Nepal offers suitable topography, climate and soil for the profitable production of mandarins with great taste, precocity and high nutritive values. This study attempts to analyze the production trend, export and import, current scenario and future prospects of mandarin in Nepal. The findings of the study shows that the production of mandarin is in increasing trend with an average annual growth rate of 7.04% from fiscal year 2019/20 to 2020/21 and cultivating area by 33.84 % from fiscal year 2019/20 to 2021/22. The study emphasizes the economic value of mandarins, especially in the mid-hill’s region, as well as their health advantages because of their fiber and antioxidant content. The yield of mandarin has decreased as a result of several issues, such as high investment costs, lack of adoption of improved technology, poor orchard management, diseases and pests, unstable prices and profit margins along with inappropriate market channels. Therefore, in order to strengthen this subsector, it is advised to focus on developing mandarin productivity through conventional mechanization, better adoption of technology, price intervention, market recognition, HLB management, establishment of storage and processing centers, and diplomatic relations for easy international marketing.
Relationship Of Inflammatory Biomarkers and Glycemic Control In Pre And Postmenopausal Women With Type 2 Diabetes Mellitus
Authors: Ayub Saddaf , Zainub Abeerah , Khan Wajahat Ullah , Jahan Saira , Ghulam Bushra , Rehman Bushra
Published: August 2024

Objective: To determine whether postmenopausal status is associated with elevated plasma inflammatory markers ferritin, neutrophil to lymphocyte ratio NLR, platelet to lymphocyte ratio PLR) compared to premenopausal status in women with type 2 diabetes mellitus and to establish a correlation between inflammatory markers and glycemic status in pre-and post-menopausal diabetic women.
Methods: A total of 80 participants aged 25-75 were recruited, from January 2024 to April 2024 and were divided into pre- and postmenopausal groups (Group I and II respectively) based on history using convenient sampling. Clinical assessments included general physical exams and BMI calculations. The biochemical analysis involved measuring Glycosylated haemoglobin (HbA1c), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and ferritin levels. The study examined the inflammatory profiles linked to menopausal status in diabetic patients.
Results: HBA1c levels were significantly higher (P < 0.05)in Group I  than in Group 2 (median 9.35 [interquartile range: 8.0 – 10.4] versus 7.10 [interquartile range: 6.42 – 8.37]  Also serum ferritin levels in Group I were significantly higher (P < 0.05) as compared to Group II (median 173 [interquartile range: 100-190] versus 35.14 [interquartile range: 8.12 – 52.75]. PLR showed significant differences (P < 0.05)  between the two groups, the ratio being higher in Group II as compared to Group I (median 108 [interquartile range: 85.38-132.77] versus 74.10 [interquartile range: 69.88-85.12]There was significant negative association between HbA1C and ferritin in both premenopausal and postmenopausal diabetic patients. However, there is no significant correlation between HbA1C and NLR or PLR in either group.
Conclusion: The interaction between menopause and T2DM affected the platelet-to-lymphocyte ratio but not the neutrophil-to-lymphocyte ratio. Also, ferritin levels are decreased in postmenopausal diabetic women. Further, glycemic status is not the only risk factor for predicting inflammation in diabetics, other risk factors have to be catered to evaluate the inflammation status of diabetic pre and postmenopausal females.
Keywords: Inflammation, neutrophil to lymphocyte ratio, Platelet to lymphocyte ratio, Ferritin, HbA1c, premenopausal women, postmenopausal women, Diabetes Mellitus.
Texto para Discussão 3034
Authors: Passos Luana , Barbosa Ana Luiza Neves de Holanda , Machado Danielle Carusi , Santos Luciana Alves dos
Published: August 2024

O objetivo deste trabalho é investigar o padrão de consumo das famílias brasileiras com ênfase no gênero e na raça do responsável (ou chefe) da família. Para tanto, foi estimado um sistema de demanda de forma simultânea para seis categorias agregadas de consumo: habitação, transporte, alimentação, saúde, educação e outras despesas. A análise foi feita utilizando-se dos dados da Pesquisa de Orçamentos Familiares 2017-2018 do Instituto Brasileiro de Geografia e Estatística (IBGE). Os resultados mostram que as mulheres gastam mais em habitação do que os homens, enquanto estes investem seus recursos mais nas despesas de transporte. Os gastos com alimentação são maiores entre negros do que brancos, independentemente do sexo da pessoa de referência. Nas despesas com saúde e educação, brancos gastam mais do que negros, sendo que, com relação à saúde, mulheres brancas tendem a gastar mais do que homens. Renda, educação, idade e filhos são importantes fatores que podem explicar as diferenças entre os resultados.
Smart Virtual Assistant Academic Model for a University Website
Authors: A.M Sowmya , Islam Sarkar Rakibul , Singh Sailesh , Sinha Shan , Manjunath R.V.
Published: August 2024

This paper presents the query chatbot system implemented by an institution, which is designed to deliver prompt and efficient responses to inquiries from both students and faculty members. Machine learning algorithms and natural language processing techniques were used in the creation of the chatbot. Using a dataset of commonly asked questions by students, we evaluated the system's functionality. The outcomes showed that the chatbot could deliver precise answers on schedule. The system's ability to provide prompt responses to often- asked questions might potentially save time for both teachers and pupils. Our study demonstrates the value of chatbots in educational environments and suggests avenues for further investigation into this area. A conversational buddy is a piece of software that facilitates online text or voice messaging conversations. They can contextualize human participation, making dialogue more interesting. A powerful tool for building chatbots that can serve as a college inquiry system is the Python framework Rasa X The goal of this research project is to establish guidelines for building a dynamic chatbot that can communicate with users via text and speech.
The Influence of Blockchain Technology on Digital Advertising Practices
Authors: Nafeza E. , Gayathri A.
Published: August 2024

Blockchain technology, widely recognized for its impact on the financial industry, is now revolutionising digital advertising practices. This paper delves into the ways blockchain technology improves transparency, reduces fraud, and enhances data security in digital advertising. By conducting a thorough analysis of existing research and real-life examples, we evaluate the influence of blockchain technology on different parties involved, such as advertisers, publishers, and consumers. Blockchain technology in advertising and marketing could provide a straightforward solution to the issue of high costs and lack of transparency, thanks to its decentralised ledger system that allows for cost-saving and real-time data aggregation. The results indicate that blockchain has the potential to bring about substantial advantages, but it also encounters obstacles that need to be overcome in order to fully harness its capabilities within the digital advertising landscape.
Understanding Racism and the Role of Identity Politics in Anti-Racism Movements in America
Authors: Thuy Anh Nguyen
Published: August 2024

The matter of racism is a complex issue concerning various humanities problems such as inequality in human rights, unfair treatment and unequal access to material resources. This dilemma has existed in various multicultural communities, for example America, where racial diversity is directly proportional to racist crime, which is among the highest in the world. According to The FBI's Uniform Crime Reporting (UCR) Program, the number of hate crimes with racial or ethnic-related motivation accounts for 60 percent of incidents occured in 2020 in Ameria. The fight against racial injustice is a challenging battle that demands long-term involvement and systematic change, starting from both the advocates and the community. Therefore, strategic goals and methods are essential to providing effective campaigns against racial discrimination. In this case, advocates and leaders must be aware of the challenges that lead to the ineffectiveness of current anti-racism movements and increase the quality of those advocating campaigns. Using qualitative methods, this research study seeks to answer that problem through the investigation of the origin and definition of racism with the aim of further understanding the issue and defining the cause of ethnic inequality. Moreover, analysis of different types of racism and colour-blind theories is also provided, which helps determine the outcome and long-term strategy for improved campaign organization. Combating against racism is a complex process that can only be influential if campaign leaders, politicians and activists come up with a productive and sustainable strategy that can oversee the ultimate goal of promoting race equality.
ANTIMONOPOLY REGULATION OF THE AGRICULTURAL SECTOR IN THE CONTEXT OF TRANSFORMATION OF ECONOMIC AND LEGAL REALITY
Authors:   Ural State University of Economics, KURDYUMOV ALEXANDER , GROMOVA NATALYA ,   Ural State University of Economics
Published: August 2024

The article examines the problems of freedom, protection and development of competition in agricultural commodity markets, including the level of support for agricultural producers through government support and government interventions. An analysis of the antimonopoly regulation of the agricultural sector from the beginning of the formation of the antimonopoly system from 1994 to the present was carried out. Conclusions are formulated in the framework of ensuring the protection of competition and the formation of a competitive policy in the agricultural sector of the economy.
PERIODIZATION OF EVOLUTIONARY CHANGES IN THE WORLD ECONOMY: CHALLENGES, TRENDS AND PRIORITIES OF NATIONAL DEVELOPMENT
Authors:   Kurgan branch of the Institute of Economics of the Ural Branch of the Russian Academy of Sciences, ORLOV SERGEY
Published: August 2024

The article presents current trends in the development of the world economy, as well as trajectories of scientific research devoted to finding adequate answers to current challenges. Conceptual approaches to modeling the directions of evolution of nature, society and factors that determine the feasibility and content of structural reforms carried out in the country are systematized. Methodological recommendations are proposed to justify measures for inclusion in economic programs and projects focused on pre-crisis, anti-crisis, post-crisis regulation in order to achieve dynamic socio-economic development of the national economy.
A Brown Dwarf Orbiting around the Planetary-nebula Central Binary KV Vel
Authors: Qian S.-B. , Zhu L.-Y. , Li F.-X. , Li L.-J. , Han Z.-T. , He J.-J. , Zang L. , Chang L.-F. , Sun Q.-B. , Li M.-Y. , Zhang H.-T. , Yan F.-Z.
Published: August 2024

KV Vel is a noneclipsing short-period (P = 0.3571 days) close binary containing a very hot subdwarf primary (77,000 K) and a cool low-mass secondary star (3400 K) that is located at the center of the planetary nebula DS 1. The changes in the orbital period of the close binary were analyzed based on 262 new times of light maximum together with those compiled from the literature. It is discovered that the O − C curve shows a small-amplitude (0.ͩ0034) cyclic period variation with a period of 29.55 yr. The explanation by the solar-type magnetic activity cycles of the cool component is ruled out because the required energies are much larger than the total radiant energy of this component in a whole cycle. Therefore, the cyclic variation was plausibly explained as the light-travel time effect via the presence of a tertiary component, which is supported by the periodic changes of the O − C curve and the rather symmetric and stable light curves obtained by the Transiting Exoplanet Survey Satellite. The mass of the tertiary companion is determined to be

M

3

sin
i
′
=
0.060
(
±
0.007
)

M
⊙. If the third body is coplanar with the central binary (i.e.,

i
′
=
62

.°

5

), the mass of the tertiary component is computed as M
3 ∼ 0.068 M
⊙, and thus it would be below the stable hydrogen-burning limit and is a brown dwarf. The orbital separation is shorter than 9.35 au. KV Vel together with its surrounding planetary nebula and the brown-dwarf companion may be formed through the common-envelope evolution after the primary filled its Roche lobe during the early asymptotic giant branch stage.
Mental Health Disorders and Surgical Outcomes in Patients With Bone and Soft Tissue Sarcoma
Authors: Chambers MaKenzie M. , Gutowski Caroline T. , Gentile Pietro , Hunter Krystal , Kim Tae Won B. , Gutowski Christina J.
Published: August 2024

Background

We conducted a study to investigate the relationship between a mental health diagnosis (MHD) and postoperative outcomes in orthopedic patients with bone and soft tissue sarcoma. We hypothesized that patients with sarcoma with a preoperative MHD would have worse outcomes and more postoperative complications.

Materials and Methods

A retrospective review was performed of 356 patients who underwent surgical treatment for bone or soft tissue sarcoma. Patients were divided into two groups: those with a diagnosis of depression, anxiety, bipolar disorder, and/or schizophrenia and those with no previous MHD. Statistical analysis was performed using independent
t
, Mann–Whitney
U
, and chi-square tests.

Results

Statistical analysis demonstrated significant differences between the MHD group and the control group in three outcomes: length of stay, 90-day readmission rate, and incidence of surgical site infections. Subgroup analysis of the MHD group yielded significantly higher 90-day readmission rates for patients who were diagnosed during sarcoma treatment.

Conclusion

Patients with sarcoma and an MHD had a longer postoperative hospital stay, an increased 90-day readmission rate, and a greater risk of surgical site infection. Given the rising prevalence of mental health disorders nationwide, orthopedic surgeons should be aware of differences in postoperative outcomes between patients with sarcoma with and without mental illness. [
Orthopedics.
2024;47(6):337–342.]
Serous-Exudative Detachment and Progressive Macular Degeneration in a Patient With Kabuki and Marfan Syndrome
Authors: Bouaziz Michael , Ferrone Philip J.
Published: August 2024

To our knowledge, this is the first report of a patient with both genetically confirmed Kabuki and Marfan syndrome demonstrating a perifoveal macular degeneration in one eye. Progressive loss of the outer retinal layers was captured and demonstrated with spectral-domain optical coherence tomography imaging. Fundus autofluorescence imaging revealed perifoveal hypoautofluorescence. The patient had initially presented with a spontaneously resolved serous-exudative retinal detachment associated with tortuous retinal vasculature and preretinal proliferative vitreoretinopathy in the other eye. Prior to presentation, the patient had an ocular history of bilateral ectopia lentis treated with crystalline lens removal and placement of iris-claw intraocular lenses.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:541–544.]
South Asian Experiences in Interdisciplinary Field Research in Water Management
Authors: Dayawansa Nandani Dhammika Kumari , Mondal M. Shahjahan
Published: August 2024

Researching about water is essentially an interdisciplinary subject as water cuts across natural and manmade boundaries. Irrespective of studying on the irrigation performance in a village tank irrigation system in the Dry Zone of Sri Lanka, or livelihood adaptation to climate change led hazards in a coastal polder of Bangladesh, or flooding in Malamchi River Basin of Nepal or drinking water issues in Sundarbans, West Bengal, India, it definitely needs to focus on technical, social, environmental, economic and many other perspectives to understand the research questions. Research issues are always unique and the balance between above perspectives of each research issue may vary. This chapter will provide insights on how to understand an interdisciplinary research question, development of the conceptual framework for the study and field activities during the data collection process, data analysis and presentation. Examples were compiled considering similarities and differences exist among the South Asian communities with respect to water resources management.
Research on the Management of Water Quality and Quantity
Authors: Mowjood M .I. M. , Gajanayake Pradeep , Galagedara Lakshman W.
Published: August 2024

Research on Water is a fascinating exercise due to its fluidity. Its connectivity is beyond our intelligence result in panic and clueless in most cases. My experience on both water quantity and quality, is never ending endeavor. I have more questions than answers and more black boxes around. Constructed wetlands is such a black box used to control water pollution. Plants, microorganisms, substrate and water work together without greedy. Tank Cascade System is another intervention. Stay in a farmer's house to study his behavior towards climate change is a good example for diving for data. System performance is not a mathematical summation of the response of different units it comprised of. My research notes on “to be done” is ever lasting as a branching tree. Research issues and challenges are wicked and require adaptive management strategies. The pains disappear all of the sudden when receiving the acceptance letter from the journal similar to child birth. This chapter tries to elaborate this charitable work on water using several illustrations.
Social Network Public Opinion Analysis Using BERT-BMA in Big Data Environment
Authors: Sun Hanqing , Liu Zheng , Lian Weimin , Wang Guizhi
Published: August 2024

The existing social network public opinion analysis methods have problems such as poor semantic expression quality and weak detection ability in short texts. Therefore, a social network public opinion analysis method based on BERT-BMA is proposed. To normalize the comment text, the rumor text is initially transferred to a word vector matrix using the BERT (Bidirectional Encoder Representations from Transformer) model. The BiLSTM-based network architecture is subsequently employed to acquire the trace features of data transmission. Ultimately, this study employs the multi-head attention mechanism to extract feature information that is more significant in the analysis of online public opinion by mining the dependency relationships between users, resulting in increasing ability to detect public opinion emergencies. The experimental outcomes indicate that the results on the Twitter data set and Weibo dataset are superior to other comparative models.
Organized sports and recreation activities for persons deprived of liberty (PDL): A comprehensive survey-analysis for continuous extension program provision and reintegration
Authors: Lobo Joseph , Antonio Anthony , Celso Rafael , Pasno Aries , Valenzuela Ruzzel , Reyes Gilda Joy , Masagca Ramon Carlo , Serrano John Mathew
Published: August 2024

The present study examined the feedback provided by a total of 436 parolees who participated in the 2024 2nd Inter-Color Sport Fest. This event was jointly organized by the Bulacan Parole and Probation Office No. 1 of Region III and the College of Sports, Exercise, and Recreation of Bulacan State University in the Philippines. Its primary objective was to cater to individuals who are incarcerated. The event centered around providing structured sporting activities aimed at improving physical health, well-being, and rehabilitation results for persons deprived of liberty (PDL). By means of a comprehensive survey analysis, the participants provided ratings for multiple facets of the program, encompassing the caliber and pertinence of training and instruction, the allocation of time for activities, and the overall efficacy of the sport fest in satisfying their requirements and anticipations. The findings revealed a notable degree of contentment among the participants, as evidenced by the persistent average scores above 4.48 on a 5-point scale, which corresponds to the range of “very satisfactory” to “excellent.” High commendations were received in specific areas, including teaching quality, adequacy of time for discussion, participation, and the perceived relevance and applicability of the training. The aforementioned results emphasize the notable beneficial effects of organized sports activities on the physical and psychological welfare of PDLs, hence emphasizing the essential function of structured sports and recreational programs within correctional environments. Moreover, this present study underscores the significance of appropriate time allocation and the facilitation of unrestricted conversation and engagement, hence fostering a learning and rehabilitation-friendly atmosphere. The respondents’ favorable response indicates that this kind of extension service plays a crucial role in the comprehensive development and rehabilitation of PDLs, thereby supporting their implementation and continuance.
Trajetórias de carreira dos atletas internacionais nos campeonatos de Portugal de atletismo realizados de 1990 a 2019
Authors: Pinto Virgílio Pedro , Lopes João , Massuça Luís Miguel
Published: August 2024

O estudo teve como objetivos: (i) identificar as trajetórias de carreira dos atletas internacionais nos campeonatos de Portugal de atletismo realizados de 1990 a 2019, e (ii) modelar o sucesso desportivo desses atletas em competições internacionais de atletismo. Foram analisadas todas as participações de atletas internacionais nos campeonatos de Portugal de atletismo realizados de 1990 a 2019 (n = 2389; Pista coberta - PC, n = 947; Ar livre - AL, n = 1442). O sucesso desportivo, medido pela obtenção de medalha em competições internacionais de atletismo, foi analisado com recurso à regressão não paramétrica local (locally estimated scatterplot smoothing, LOESS) para as curvas obtidas a partir de mais de 10 observações, e o ajustamento de modelos de regressão logística foi utilizado para explicar a probabilidade de ser medalhado em campeonatos internacionais (modelos: Idade, Escalão e Classificação). Observou-se que ~11% das atletas do sexo feminino (PC, 10.8%; AL, 11.3%) e ~7% dos atletas do sexo masculino (PC, 8.5%; AL, 5.8%) que participaram em idades jovens nos campeonatos de Portugal foram internacionais medalhados. Numa análise comparativa entre os atletas internacionais medalhados e não-medalhados, observou-se que os atletas medalhados (i) participam nos campeonatos de Portugal com idades mais altas (consequentemente, com escalões menos jovens); e (ii) obtém classificações e marcas melhores. A análise de modelação do sucesso desportivo dos atletas internacionais confirma os resultados obtidos a partir das análises visuais, observando-se que: (i) quanto maior for a média das idades nas participações nos campeonatos de Portugal, maior é a probabilidade de ser medalhado internacionalmente; (ii) ter uma trajetória de carreira com participação em idades jovens nos campeonatos de Portugal não altera a probabilidade de ser medalhado internacionalmente; e (iii) quanto menor (melhor) for a média das classificações, maior é a probabilidade de ser medalhado internacionalmente.
A Comprehensive Aeroservoelastic Approach to Detect and Prevent Rotorcraft-Pilot Coupling Phenomena in Tiltrotors
Authors:   Politecnico di Milano, Colombo Francesca , Muscarello Vincenzo , Quaranta Giuseppe , Masarati Pierangelo
Published: August 2024

This work investigates rotorcraft-pilot coupling phenomena in tiltrotors. A detailed tiltrotor model, representative of the Bell-Boeing XV-15, has been built. Biomechanical models of the pilot, acting on the power lever and on the centre stick, are included in feedback loop to define the Pilot-Vehicle System. Pilot-Assisted Oscillation phenomena are investigated on the overall conversion corridor using Nyquist's criterion. Pilot-in-the-loop analyses demonstrate that a critical parameter is detected in the vertical fins geometry. Due to an asymmetric flaperons deflection the wing's wake impacts on the vertical fins, producing a side force. The pulsating tail-side-force makes the fuselage to yaw and excites the asymmetric wing chord mode coupled with the lateral pilot's biomechanics, leading to a reduction, or even a loss, of stability. No unstable event is detected about the longitudinal direction. Conversely, a resonance between the pilot's biomechanics and the aircraft poorly damped symmetric wing bending mode is predicted about the vertical axis. The instability is found on the whole conversion corridor, although the source of excitation changes with reference to the nacelle angle. Means of prevention are implemented and discussed.
Multi-Axis Voxel-Based CNC Machining of Centrifugal Compressor Assemblies
Authors:   Georgia Institute of Technology, Kurfess Thomas ,   Tucker Innovations Inc., Tucker Tommy , Silberglied Chelsea , Lynn Roby , Saleeby Kyle , Saldana Christopher
Published: August 2024

The use of computer-aided manufacturing (CAM) software is essential in the rapid production of high-quality computer numerical control (CNC) machining toolpaths for complex parts. Typical CAM software relies on analytical representations of part geometry, where curves and surfaces are described by parametric functions. This paper proposes the use of a novel way to represent part geometry known as a voxel model. A voxel model uses a three-dimensional array of small cubes to represent a part volume; these cubes, or voxels, are the three-dimensional analog of two-dimensional pixels in an image. The use of voxels for a CAM application enables higher surface complexity, simplified collision checking, and more robust analysis of material removal than would be possible with typical parametric CAM. The unique capabilities of the voxel-based CAM approach described in this paper enable rapid production of high-quality 5-axis toolpaths for machining complex parts, such as the centrifugal compressor assembly that is presented in this work.
Cheeseman Award Paper: Aeroelastic Simulation of the Tail Shake Phenomenon
Authors:   University of Stuttgart, Schäferlein Ulrich , Keßler Manuel , Krämer Ewald
Published: August 2024

Rotor-fuselage interactions continue to pose a challenge during the design phase of a new helicopter. Quite often, the prototype phase is faced with problems in fast-forward flight caused by strong interactions at the tail, the so-called tail shake phenomenon. The wake of the main rotor, the rotor hub and the airframe impinges on the tail boom causing an excitation of low-frequency eigenmodes of the entire helicopter airframe. The resulting vibrations reduce flight comfort and flight stability in some critical cases. Previous approaches to solve the problem were restricted to wind tunnel tests due to the lack of predictability in terms of numerical methods. A high-fidelity simulation presented in this study by means of a time-resolved coupling between the flow and structural behavior of the helicopter shows significant progress in the prediction potential of the investigated phenomenon. Utilizing higher order methods for the CFD simulation, tightly coupled with a modal-based CSD simulation of the airframe, very good agreement with flight test data of the relevant low-frequency eigenmodes could be achieved.
Experimental Evaluation of Transmission Loss-of-Lubrication Technologies
Authors:   US Army Research Laboratory, Berkebile Stephen ,   Naval Air Station, Colon-Rivera Radames ,   US Army - Aviation Development Directorate, Fetty Jason , Murthy Nikhil , Radil Kevin , Dykas Brian
Published: August 2024

A Joint Aircraft Survivability Program (JASP) project was awarded in 2014 in order to accelerate the research and development on military helicopter transmission loss of lubrication survivability. This JASP project, "Helicopter Transmission Loss-of-Lubrication" was a collaboration between the US Army, US Navy, and NASA and completed in 2018. The approach for the effort was to first screen emerging technologies using coupon-level methods, then test those showing the most promise at the component level, and finally to downselect and evaluate these technologies at the system level. Several concepts to reduce heat generation, increase heat rejection, increase material tolerance to higher temperatures, and increase material resistance to damage were evaluated for this effort. Included in this evaluation were: a ceramic material for bearings, four different gear steels, various levels of gear surface roughness, six gear coatings, five lubricant and lubricant additive variations, and gearbox noble gas injection. After gear testing at the component level, isotropic superfinishing and ionic liquid lubricant additive were down selected as the two most suitable technologies for the system level testing. These technologies underwent loss of lubrication testing to failure in an intermediate gearbox from a standard configuration medium lift helicopter. A baseline loss of lubrication test, without these technologies, was also performed for comparison.
Heat Transfer Measurements on the Endwall of a Variable Speed Power Turbine Blade Cascade
Authors:   US Army Research Laboratory, Thurman Douglas ,   NASA Glenn Research Center, Poinsatte Philip ,   Vantage Partners LLC, Giel Paul , Lucci Barbara
Published: August 2024

Heat transfer measurements were obtained on the planar endwall of a 2-D section of a variable speed power turbine (VSPT) rotor blade in a linear cascade. Infrared thermography was used to determine the endwall heat transfer distribution. Changes in the local heat transfer rates with Reynolds number were used to identify the laminar, turbulent, and transitional flow regimes, as well as to determine regions of flow separation. Steady state data were obtained for six incidence angles ranging from +15.8° to –51.0°, and at five flow conditions for each angle. Reynolds numbers were varied over an order of magnitude while two exit Mach number conditions were examined in order to accommodate the facility operating envelope.
Design, Analysis and Flight Testing of a High Altitude Synchropter UAV
Authors:   Technical University of Munich, Barth Aaron ,   German Aerospace Center, Kondak Konstantin , Spieß Christian , Hajek Manfred
Published: August 2024

This paper describes the architecture and performance of a 36 kg to 56 kg synchropter (intermeshing rotors) with 3.3 m rotor diameter that was specifically designed for high altitudes. The design mission of this prototype is to climb from 5000 m to 9000 m above mean sea level, descend back to 5000 m with autorotation, and cruise back to the departure point. The design is intended to be a compromise between controllability in gusty winds and low overall system power consumption through low disc loading and tip speed. The prototype features variable tip speeds from 100 m/s to 135 m/s and is able to hover with an overall system power of 80 W/kg. This paper presents flight test data of this prototype at low altitude with a special focus on rotor performance and rotor blade root flap moments in hover, forward flight, and vertical climb. The flight test data is compared to a lower order aeromechanics model using the comprehensive helicopter analysis CAMRAD II that was previously used to design the rotorcraft. The couplings between the control inputs and their corresponding axis motion are discussed. Finally, the design mission was simulated by the performance validated model to bridge the design and the real prototype.
An IPPD Method Conceptual Design for an Unmanned Autonomous Vehicle with a Ring-Shaped Configuration for Facilitated Docking and Inducted Charging
Authors:   Georgia Institute of Technology, Lacerda Michel , Park Dongjin , Patel Srujal , Schrage Daniel
Published: August 2024

The Integrated Product and Process Development (IPPD) method is known for its use in multidisciplinary development of highly complex engineering products and concepts. In this study, the IPPD method and its steps are utilized for a conceptual design of an unmanned autonomous vehicle with a ring-shaped configuration for facilitated docking and inducted charging. A concept that can have different applications is primarily based on the conceptual project being developed at the Georgia Institute of Technology that aims to create a Unmanned Aerial Vehicle for Mars Exploration that features a hands-free docking and charging capability. For that capability to exist, it is important to include the IPPD method in its design phase and follow its steps for multidisciplinary development. The work was developed in the Systems Engineering level of conceptualization and Design phase.
Examining Age and Food Irradiation Knowledge as Influential Factors on the Purchase of Irradiated Foods: United States, August 2022
Authors: Crawford Tamara N. , Ablan Michael , Canning Michelle , Marshall Katherine E. , Robyn Misha
Published: August 2024

Foodborne illness affects approximately 48 million Americans annually. Food irradiation is a safe and effective way to kill bacteria and extend a product’s shelf life. However, challenges to wider implementation of this technology include consumer hesitancy stemming from misconceptions about safety and lack of knowledge of irradiation’s benefits. Research has shown that consumers are more willing to accept irradiation if informed about its safety. Because of increases in multistate foodborne outbreaks and consumers’ growing concern about and expectation of food safety, it is an opportune time to reconsider irradiation as a food safety tool. Consumer attitudes toward food safety differ by demographic characteristics; however, research on the association of demographic factors with attitudes on food irradiation are limited. Data collected from a survey (n = 1,009) conducted in August 2022 were analyzed to describe the relationship between age and food irradiation knowledge as influential factors to purchase irradiated foods. More than half (56%) of respondents reported that learning more about irradiation would likely influence purchasing decisions, and older adults were more knowledgeable about food irradiation. These findings suggest that age could be an important factor to consider when tailoring messaging as a prevention strategy around the benefits of food irradiation.