bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimal Design of Antibody Extraction Systems using Protein A Resin with Multicycling
Authors: Ghanem Fred , Kodate Purnima M. , Capellades Gerard M. , Yenkie Kirti M.
Published: August 2024

Antibody therapies are important in treating life-threatening ailments such as cancer and autoimmune diseases. Purity of the antibody is essential for successful applications and Protein A selective resin extraction is the standard step for antibody recovery. Unfortunately, such resins can cost up to 30% of the total cost of antibody production. Hence, the optimal design of this purification step becomes a critical factor in downstream processing to minimize the size of the column needed. An accurate predictive model, as a digital twin representing the purification process, is necessary where changes in the flow rates and the inlet concentrations are modeled via the Method of Moments. The system uncertainties are captured by including the stochastic Ito process model of Brownian motion with drift. Pontryagin�s Maximum Principle under uncertainty is then applied to predict the flowrate control strategy for optimized resin use, column design, and efficient capturing of the antibodies. In this study, the flow rate is controlled to optimize the process efficiency via maximizing the theoretical plate number with time, the objective for efficient resin usage within a fixed-size column. This work successfully achieved optimality, which was also confirmed via experimentation, leading to higher antibody resin loading capacity. When the work was expanded to 200 cycles of Protein A usage, significant improvements in the downstream process productivity were achieved allowing for smaller footprint columns to be used.
Improved Design of Flushing Process for Multi-Product Pipelines
Authors: Gao Barnabas , Jerpoth Swapana , Theuma David , Curtis Sean , Roth Steven , Fracchiolla Michael , Hesketh Robert , Slater C. Stewart , Yenkie Kirti M.
Published: August 2024

Maintaining product integrity in multi-product oil pipelines is crucial for efficiency and profit. This study presents a strategy combining design and process improvement to enhance flushing protocols, addressing the challenge of residual batch contamination. A pilot plant, mirroring industrial operations through dimensionless residence time distribution, was developed to identify and rectify bottlenecks during product transition. The pilot plant�s success in replicating industrial operations paves the way for targeted experiments and modelling to enhance optimized flushing, ensuring product quality and operational excellence.
Learning Hybrid Extraction and Distillation using Phenomena-based String Representation
Authors: Li Jianping
Published: August 2024

We present a string representation for hybrid extraction and distillation using symbols representing phenomena building blocks. Unlike the conventional equipment-based string representation, the proposed representation captures the design details of liquid-liquid extraction and distillation. We generate a set of samples through the procedure of input parameter sampling and superstructure optimization that minimizes separation cost. We convert these generated samples into a set of string representations based on pre-defined rules. We use these string representations as descriptors and connect them with conditional variational encoder. The trained conditional variational encoder shows good prediction accuracy. We further use the trained conditional variational encoder to screen designs of hybrid extraction and distillation with desired cost investment.
Optimization of Solid Oxide Electrolysis Cell Systems Accounting for Long-Term Performance and Health Degradation
Authors: Giridhar Nishant V. , Bhattacharyya Debangsu , Allan Douglas A. , Zitney Stephen E. , Li Mingrui , Biegler Lorenz T.
Published: August 2024

This study focuses on optimizing solid oxide electrolysis cell (SOEC) systems for efficient and durable long-term hydrogen (H2) production. While the elevated operating temperatures of SOECs offer advantages in terms of efficiency, they also lead to chemical degradation, which shortens cell lifespan. To address this challenge, dynamic degradation models are coupled with a steady-state, two-dimensional, non-isothermal SOEC model and steady-state auxiliary balance of plant equipment models, within the IDAES modeling and optimization framework. A quasi-steady state approach is presented to reduce model size and computational complexity. Long-term dynamic simulations at constant H2 production rate illustrate the thermal effects of chemical degradation. Dynamic optimization is used to minimize the lifetime cost of H2 production, accounting for SOEC replacement, operating, and energy expenses. Several optimized operating profiles are compared by calculating the Levelized Cost of Hydrogen (LCOH).
Dimensionality Reduction in Optimal Process Design with Many Uncertain Sustainability Objectives
Authors: Wang Hongxuan , Allman Andrew
Published: August 2024

The study of sustainable design has gained prominence in response to the growing emphasis on environmental and social impacts of critical infrastructure. Addressing the different dimensions inherent in sustainability issues necessitates the application of many-objective optimization techniques. In this work, an illustrative four-objective design system is formulated, wherein uncertainties lie within two different socially-oriented objectives. A stochastic community detection approach is proposed to identify robust groupings of objectives. The findings reveal that the modularity of the optimal solution surpasses that of the average graph, thus demonstrating the efficacy of the proposed approach. Furthermore, a comprehensive exploration of the Pareto frontiers for both the robust and single-scenario best groupings is undertaken, demonstrating that using the robust grouping results in little to no information loss about tradeoffs.
Power System Design and Necessary Changes to Accommodate Future Energy Challenges
Authors: Harjunkoski Iiro , Knezovic Katarina , Oudalov Alexandre
Published: August 2024

The decarbonization of the society has a very high effect on the power grids as especially the energy generation will be almost completely shifted to CO2-neutral sources such as wind and solar. This implies significant design changes to the power grids and power systems, which lie between the electricity producers and consumers. In this paper, we discuss both the generation and consumer side, including the grid changes and required data exchange to support the transition.
Towards Sustainable Supply Chains for Waste Plastics through Closed-Loop Recycling: A case-study for Georgia
Authors: Anglou Elisavet , Bhattacharya Riddhi , Stathatou Patricia , Boukouvala Fani
Published: August 2024

Sustainable and economically viable plastic recycling methodologies are vital for addressing the increasing environmental consequences of single-use plastics. In this study, we evaluate the plastic waste management value for the state of Georgia, US and investigate the potential of introducing novel depolymerization methods within the network. An equation-based formulation is developed to identify the optimum supply-chain design given the geographic location of existing facilities. Chemical recycling technologies that have received increasing attention are evaluated as candidate technologies to be integrated within the network. The optimum supply-chain design is selected based on environmental and economic objectives. The designed network of pathways uses a mix of different technologies (chemical and mechanical recycling) in a way that are both economically environmentally sound.
Design Education Across the Curriculum for the Future of Design
Authors: Ford Versypt Ashlee N.
Published: August 2024

The future of computer-aided process design hinges on continued recruitment, training, and retention of the next generations of engineers. Many elementary and secondary school programs focused on engineering have made substantial impacts in informing children about careers in science, technology, engineering, and mathematics (STEM). A report by the National Academies established three general principles for pre-college engineering education, the first of which is that elementary and secondary engineering education should emphasize engineering design. Curricula focused on teaching the engineering design process have been developed for K-12 students and educators... (ABSTRACT ABBREVIATED)
Computer-Aided Mixture Design Using Molecule Superstructures
Authors: Rehner Philipp , Schilling Johannes , Bardow Andr�
Published: August 2024

Computer-aided molecular and process design (CAMPD) tries to find the best molecules together with their optimal process. If the optimization problem considers two or more components as degrees of freedom, the resulting mixture design is challenging for optimization. The quality of the solution strongly depends on the accuracy of the thermodynamic model used to predict the thermophysical properties required to determine the objective function and process constraints. Today, most molecular design methods employ thermodynamic models based on group counts, resulting in a loss of structural information of the molecule during the optimization. Here, we unlock CAMPD based on property prediction methods beyond first-order group-contribution methods by using molecule superstructures, a graph-based molecular representation of chemical families that preserves the full adjacency graph. Disjunctive programming is applied to optimize molecules from different chemical families simultaneously. The description of mixtures is enhanced with a recent parametrization of binary group/group interaction parameters. The design method is applied to determine the optimal working fluid mixture for an Organic Rankine cycle.
Design and Optimization of Methanol Production using PyBOUND
Authors: Borisut Prapatsorn , Williams Bianca , Nuchitprasittichai Aroonsri , Cremaschi Selen
Published: August 2024

In this paper, we study the design optimization of methanol production with the goal of minimizing methanol production cost. One challenge of methanol production via carbon dioxide (CO2) hydrogenation is the reduction of operating costs. The simulation of methanol production is implemented within the Aspen HYSYS simulator. The feeds are pure hydrogen and captured CO2. The process simulation involves a single reactor and incorporates recycling at a ratio of 0.995. The methanol production cost is determined using an economic analysis. The cost includes capital and operating costs, which are determined through the equations and data from the capital equipment-costing program. The decision variables are the pressure and temperature of the reactor contents. The optimization problem is solved using a derivative-free algorithm, pyBOUND, a Python-based black-box model optimization algorithm that uses random forests (RFs) and multivariate adaptive regression splines (MARS). The predicted minimum methanol production cost by pyBOUND is $1396.56 per tonne of methanol, which corresponds to the pressure of 68.82 bar and temperature of 192.23�C while the actual cost is $1393.95 per tonne of methanol at these conditions. The cost breakdown of methanol production is 75% hydrogen price, 11% utility cost, 8% capital cost, 5% carbon dioxide price, and 1% operating cost.
Integrating the Design of Desalination Technologies into Produced Water Network Optimization
Authors: Naik Sakshi , Zamarripa Miguel , Drouven Markus , Biegler Lorenz T.
Published: August 2024

The oil and gas energy sector uses billions of gallons of water for hydraulic fracturing each year to extract oil and gas. The water injected into the ground for fracturing along with naturally occurring formation water from the oil wells surfaces back in the form of produced water. Produced water can contain high concentrations of total dissolved solids and is unfit for reuse outside the oil and gas industry without desalination. In semi-arid shale plays, produced water desalination for beneficial reuse could play a crucial role in alleviating water shortages and addressing extreme drought conditions. In this paper we co-optimize the design and operation of desalination technologies along with operational decisions across produced water networks. A multi-period produced water network model with simplified split-fraction-based desalination nodes is developed. Rigorous steady-state desalination mathematical models based on mechanical vapor recompression are developed and embedded at the desalination sites in the network model. An optimal common design is ensured across all periods using global capacity constraints. The solution approach is demonstrated for multi-period planning problems on networks from the PARETO open-source library. Model formulation and challenges associated with scalability are discussed.
PERAN KULINER DALAM MENINGKATKAN DAYA TARIK WISATAWAN DI GROJOGAN SEWU TAWANGMANGU
Authors: Sulistijo Surjo , Pratama Mulya Fredy
Published: August 2024

Kuliner wisata merupakan ciri khas di Grojogan Sewu Tawangmangu dimana ini sebuah unggulan dan sebagai modal dalam menarik minat berkunjung bagi wisatawan. Terdapatnya sebuah ciri khas kuliner di Tawangmangu merupakan ketertarikan masyarakat sekitar untuk turut serta membuktikan bahwa kuliner sate kelinci dapat menjadi sebuah incaran bagi wisatawan yang berkunjung di Grojogan Sewu. Tujuan Penelitian ini untuk mengetahui peran kuliner dalam meningkatkan daya tarik wisatawan di Grojogan Sewu Tawangmangu, untuk mengetahui apakah kuliner khas Tawangmangu mampu menarik wisatawan untuk berkunjung di Grojogan Sewu Tawangmangu dan kendala yang dihadapi oleh pemilik kuliner maupun wisatawan di Grojogan Sewu Tawangmangu. Jenis penelitian yang digunakan adalah pendekatan kualitatif memberikan gambaran dan uraian tentang peran kuliner dalam meningkatkan daya tarik wisatawan di Grojogan Sewu Tawangmangu. Dengan menggunakan metode wawancara, observasi, dan dokumentasi dalam pengumpulan datanya, serta wawancara dengan sepuluh responden.
Hasil dari penelitian tersebut adalah peran kuliner dalam meningkatkan daya tarik wisatawan di Grojogan Sewu Tawangmangu, terhadap pelaku kuliner penjual dan pengunjung masih terdapat kendala yang dihadapi: (1) minimnya rambu – rambu untuk pengunjung dari pengelola, (2) kurangnya fasilitas untuk berteduh pada saat hujan di sekitar area Grojogan.
Momentum in Tennis Echoes in each Bounce
Authors: Cheng Yifei , Zhao Linhui , Lian Jiexi
Published: August 2024

The 2023 Wimbledon Gentlemen’s final unfolded as a remarkable battle, characterized
by momentum shifts. However, it is challenging to measure momentum and its effect on the events
during the match. This article primarily focuses on how to quantify and evaluate momentum, predict
the swings of the match, test the generality and provide useful advice to players and coaches.
Firstly, we conduct data pre-processing by removing outliers on the given data according to the
tennis rules. Next, in order to identify which player is performing better, we select 10 secondary
indicators based on Spearman Correlation Coefficients, such as distance and rally_count from two
aspects: technique and physiology. Then, we combine CRITIC method to calculate the weights of
related indicators and TOPSIS method to evaluate the performance. The result indicates that the
model can capture the flow of the match and Carlos Alcaraz performs better by a higher momentum
of 0.06 in the given data with match_id of 2023-wimbledon-1301. Then, to assess the coach’s claim
regarding the role of momentum in the match, we establish a model for on-court situation changes
using statistical methods and compare it with CRITICTOPSIS model. By comparison, we conclude
that the change in momentum trend shows a 59% correlation with the outcome of the next point and
there is a clear correlation between the changes in Momentum and on-court situation. That is to say,
momentum do play a role in the match.
The Ineffectiveness of Forced Return-to-Office Mandates: How Successful Leaders are Adapting to New Ways of Working
Authors:   Utah Valley University, Westover Jonathan
Published: August 2024

This article examines how some return-to-office mandates reflect inadequate leadership rather than real business needs, and contrasts this with how progressive organizations are effectively supporting new hybrid and remote work arrangements. Research suggests mandated returns often stem from leaders' discomfort with lack of direct oversight and preference for traditional command-and-control styles over newer empowering approaches. However, studies also show remote work can maintain or boost productivity, satisfaction and retention when implemented properly through communication, trust-building and community support. Cutting-edge firms are reaping cost savings while fostering well-being and innovation through flexible policies, leadership training, virtual collaboration tools and redesigned hybrid office spaces. Rather than control, the most effective leaders highlighted empower employees, adapt management styles and leverage technology to facilitate new ways of working aligned with changing realities.
Comprehensive evaluation of agronomic and qualitative characteristics in selected wheat cultivars in Kosovo
Authors: Gashi Njomza
Published: August 2024

Cereals, such as wheat, hold significant nutritional and economic value globally, particularly in regions like Kosovo, where wheat cultivation plays a vital role in the production of staple foods. This study examines three predominant wheat cultivars in Kosovo, namely “Pobeda,” “Euclide,” and “Europe,” focusing on agronomic traits and end product quality to ascertain their suitability for cultivation and subsequent product applications. Through a comprehensive evaluation encompassing agronomic, qualitative, and baking parameters, the study aims to provide insights into cultivar-specific characteristics that influence both cultivation practices and end product quality. Key findings reveal notable disparities among cultivars in agronomic parameters, with “Euclide” demonstrating superior flour extraction rates (42.97%) and exemplary performance in baking evaluations. Noteworthy variations in chemical composition, particularly in fat and fiber content, were observed, with “Pobeda” exhibiting the highest values (2.54% fat content and 3.21% fiber). Despite nonsignificant differences in certain agronomic parameters according to ANOVA results, individual cultivar performance underscored unique traits, highlighting the cultivar-specific influence on overall quality. This research fills a crucial gap by providing a nuanced understanding of wheat cultivars in Kosovo, offering valuable insights for farmers and the baking industry to optimize cultivation techniques and enhance end product quality. The findings advocate for the adoption of cultivar-specific approaches in wheat cultivation and processing, ultimately contributing to sustainable agricultural practices and improved product standards. Overall, this study contributes to the advancement of knowledge in wheat agronomy and quality assessment, facilitating informed decision-making for stakeholders involved in wheat production and processing in Kosovo and beyond.
Navigating Asylum Seekers' Mobility Restrictions in Emergency Situations – Insights from the Supreme Administrative Court of Lithuania
Authors: Nasutaviien Justina
Published: August 2024

In 2021, the Republic of Lithuania declared a state-level emergency across the country due to an unprecedented influx of foreigners, posing a multifaceted challenge to numerous institutions in this domain. In response, amendments to the Law 'On the Legal Status of Foreigners' emerged,
introducing, inter alia, various mobility restrictions applicable to irregular migrants (including asylum seekers). These changes faced criticism both at home and abroad until the Constitutional Court of the Republic of Lithuania eventually put an end to it. Nevertheless, when dealing with
appeals regarding the movement restrictions of asylum seekers, the Supreme Administrative Court of Lithuania interpreted and applied this regulation for about two years, and the jurisprudence that was formed influenced national legal framework in one way or another. This article aims to highlight
key cases handled by the Court regarding the movement restriction of asylum seekers, which laid the groundwork for not deviating from respect for human rights and the country's international obligations in this area during the emergency situation in the country. Therefore, this article addresses
various jurisprudential aspects, including the right to judicial review of movement restrictions, the calculation of deadlines for alternative measures to detention and the role of deportation prospects. Moreover, it highlights the Court's referral to the Court of Justice of the European Union,
impacting the national regulation of asylum seekers' detention.
Approach to Usage of Renewable Energy Sources in European University Campuses—Case Study
Authors: Krawczyk Dorota Anna , Rey-Hernández Javier M. , Rey-Martínez Francisco J. , Psomopoulos Constantinos S. , Sadowska Beata , Šadauskienė Jolanta
Published: August 2024

Nowadays, we can observe various scenarios aiming to promote the decarbonization of the university campuses. Higher education institutions are expected to be pioneers in development and application of sustainable solutions. This paper presents innovative solutions as well as education of society. As many approaches to decarbonization of university campuses are tested and applied it is necessary to study the effects in context to possible application in different climate conditions. In this paper, real solutions applied in Bialystok (Poland), Valladolid and Malaga (Spain), Kaunas (Lithuania) and Athens (Greece) are described as well as future plans for technical solutions to make campuses energy efficient and eco-friendly. As shown, it is hard to find a consistent and one-size-fits-all approach to this issue. Unique needs with the perspective of changes in the heat and cool demand, national rules on development of renewable energy sources, energy price volatility as well as technical possibilities of application of individual solutions on campuses affect the choice of the applied realization.
Construcción discursiva interpersonal de la imagen social a través del empleo de recursos de atenuación en conversaciones coloquiales entre hablantes de Santiago de Chile
Authors:   , González Riffo Javier Andrés
Published: August 2024

La imagen social, imagen, face, o imagen pública constituye, de acuerdo con Goffman (1967), la representación que realizan los hablantes sobre sí mismos y sobre otros a partir de la ponderación que tienen sobre los valores sociales que son parte de su comunidad. Se trata, entonces, de un fenómeno que, sin ser estrictamente lingüístico, motiva parte del comportamiento comunicativo de los hablantes al expresar sus deseos de filiación grupal y autonomía. En la actualidad, existe consenso en la literatura de que se trata de un fenómeno independiente de la (des)cortesía verbal, marco conceptual desde el cual ha alcanzado un desarrollo notable; sin embargo, los aspectos metodológicos para su estudio siguen en desarrollo (Haugh, 2010). En este contexto, esta investigación asume el desafío de explorar las formas en que se co-construye en la interacción la imagen social a partir de su emergencia por medio de los juicios de valor haciendo uso de los fundamentos teórico-metodológicos ofrecidos por el sistema de VALORACIÓN (Martin y White, 2005), que se enmarca en la teorización de la Lingüística Sistémico Funcional. Desde una aproximación discursiva, esta investigación, de carácter cualitativo, alcance descriptivo y enfoque sociocultural, indaga en la relación entre imagen social, VALORACIÓN y atenuación para (i) describir la construcción discursiva interpersonal de la imagen social a partir de significados de valoración desplegados en conversaciones coloquiales y (ii) describir la relación entre los recursos de atenuación y la construcción discursiva interpersonal de la imagen. Para esto, se analizan nueve conversaciones coloquiales libres y con fin interpersonal del corpus AMERESCOS-CL (Guerrero y González Riffo, en línea) en que participan dos interlocutores santiaguinos cuya relación es de alta proximidad vivencial. Los principales resultados de este trabajo relevan, por una parte, la aplicabilidad de los principios teóricos y metodológicos que fundamentan el sistema de VALORACIÓN para dar cuenta de los valores sociales que cimentan las imágenes sociales reclamadas por los interlocutores y, por otra parte, el carácter dialógico de la atenuación y su alcance a la luz de la gestión de la armonía interpersonal como producto de los significados valorativos intersubjetivos que son mitigados en beneficio de las imágenes sociales construidas.
Análise dos fatores críticos de sucesso na exportação: um estudo de empresas do setor metal-mecânico da Serra Gaúcha
Authors: Lima Felipe da Silva , Vieira Guilherme Bergmann Borges , Lazzari Fernanda , Salvador Christian Kleiton , Santos Carlos Honorato Schuch
Published: August 2024

Diante do cenário atual e considerando a importância das exportações para a economia, cada vez mais é necessário investigar aspectos gerenciais que influenciem positivamente essa atividade. Nesse contexto, emergem os Fatores Críticos de Sucesso como elementos-chave a serem considerados para alcançar o êxito nas exportações. Em vista disso, o presente trabalho teve como objetivo geral analisar a influência dos fatores críticos de sucesso no desempenho internacional de empresas exportadoras do setor metal mecânico da Serra Gaúcha. Para alcançar esse objetivo, foi realizada uma pesquisa qualitativa exploratória, sendo selecionados e entrevistados cinco responsáveis pela aérea de exportação de diferentes empresas do setor metal mecânico de Caxias do Sul, sendo eles gerentes, coordenadores e supervisores da área de exportação. As entrevistas foram gravadas, transcritas e submetidas a procedimentos de análise de conteúdo. Os resultados evidenciaram convergência com a literatura, reforçando importância de considerar e desenvolver esses fatores em estratégias de exportação, visando aumentar a probabilidade de sucesso e aproveitar as oportunidades no mercado internacional. Adicionalmente, as análises forneceram insights valiosos para a formulação de estratégias eficazes e o aprimoramento do desempenho das operações de exportação.
Mensurando a sustentabilidade: uma revisão sistemática da literatura recente dos indicadores ESG na gestão de empresas, cidades e universidades
Authors: Belizário Ana Paula , Ávila Lucas Veiga
Published: August 2024

Esse artigo tem como objetivo analisar os estudos recentes sobre indicadores ESG em empresas, cidades e universidades, discutir a eficácia desses em apresentar resultados nos pilares ambiental, social e de governança e possível padronização de indicadores. Foi utilizada uma abordagem de Revisão Sistemática da Literatura (RSL) e para a coleta de dados foi utilizada a bases de dados Web of Science, com base em um conjunto de palavras-chave e operadores booleanos. Utilizando o software Zotero, 32 artigos foram classificados e organizados de acordo com conteúdo (empresas, cidades e universidades). As análises bibliométricas foram feitas com auxílio dos softwares VOSviewer e Excel. O presente estudo vai atuar em uma lacuna de conhecimento sobre o tema indicadores ESG que ainda é pouco explorado, porém de suma importância para a materialidade do assunto. Como resultados tem-se o país que mais produz pesquisas é a China e os estudos sobre ESG que ocupam a maior parte da literatura ainda não se debruçam sobre a importância dos indicadores que contemplam os pilares social, ambiental e governança. A maior parte das pesquisas foca no contexto empresarial relacionando divulgação ESG e desempenho financeiro e impacto da divulgação de resultados ESG no valor da empresa no mercado. Os estudos conectando os princípios ESG a cidades e universidades ainda são escassos na literatura. Como contribuição, tem-se a ampliação das discussões sobre o tema ESG em empresas, cidades e universidades e esclarecer sobre campos de estudos que ainda não são priorizados, mas que possuem grande impacto social.
Otizm Spektrum Bozukluğu Olan Bireylere Serbest Zaman Becerisinin Öğretiminde Kendini Yönetme Stratejilerinin Etkililiği
Authors: Gönen Akın , Uslucan Gökhan
Published: August 2024

Tipik gelişim gösteren bireylerin çoğu serbest zamanlarını dinlenerek, başkalarıyla arkadaş olarak, ilgi alanlarını keşfederek ve yeni beceriler öğrenerek geçirmektedir. Otizm spektrum bozukluğu (OSB) olan bireylerin ise serbest zamanla ilgili etkinlik repertuvarının sınırlı olması uygun olmayan davranışların gözlenmesine veya farklı ortamlarda becerilerin kolayca gösterilmemesine neden olabilmektedir. Bu bakımdan çalışmada, kendini yönetme öğretiminin OSB olan katılımcıların kendini yönetme stratejilerini kazanması ve sürdürmesi üzerine olan etkisi incelenmiştir. Bununla birlikte katılımcıların stratejileri kullanarak serbest zaman becerilerinden biri olan bulmaca çözmeyi kazanması ve sürdürmeleri, kullanılan stratejileri ve bulmaca çözmeyi ne düzeyde genelleyebildiği amaçlanmıştır. Sosyal geçerlik verilerinin toplanması amacıyla ise annelerin ve öğretmenlerin görüşleri incelenmiştir. Araştırma, tek denekli araştırma modellerinden katılımcılar arası yoklama evreli çoklu yoklama modeli kullanılarak gerçekleştirilmiştir. Araştırmanın katılımcı grubu, OSB tanısı alan ve 11-12 yaşları arasında olan üç kişiden oluşmaktadır. Araştırma bulguları, kendini yönetme öğretiminin OSB olan bireylerin stratejileri kazanmasında etkili olduğunu ve uygulamadan sonra da stratejileri kullanmaya devam ettiklerini göstermiştir. Kendini izleme, kendini değerlendirme ve kendini pekiştirmeden oluşan kendini yönetme stratejilerini kullanan katılımcıların bulmaca çözme düzeylerinde artış olduğu, uygulamadan sonraki 2., 4. ve 6. haftalarda kazanımları sürdürdüğü, farklı kişi ve ortamlara genellediği tespit edilmiştir. Sosyal geçerlik bulgularıyla ilgili, kendini yönetme stratejileri ve serbest zaman becerisi hakkında anne ve öğretmen görüşlerinin olumlu olduğu görülmüştür. Ortaya çıkan sınırlılıklar ve bulgular doğrultusunda ileri araştırmalar için önerilerde bulunulmuştur.
Can Artificial Intelligence Forge the Future of Business Management, E-commerce, and Finance? A Comprehensive Exploration of Transformative Trends after COVID-19
Authors: Ogirri Kenneth O. , Ogedengbe O.G.
Published: August 2024

This article investigates how artificial intelligence (AI) has transformed finance, e-commerce, and business after COVID-19. Starting with a basic explanation of artificial intelligence (AI), it explores the main fields of AI and explores revolutionary trends, highlighting how AI may improve productivity, customize user experiences, and disrupt conventional processes. With a focus on ethical issues and legal frameworks, insightful evaluations address how AI affects e-commerce strategies, financial forecasts, portfolio allocation, and project management. The results underline the critical role AI will play in determining how businesses operate in the future and draw attention to the fine line that separates innovation from ethical duty. The insights from this article predict a paradigm shift in project management functions in favour of AI in the future, indicating the necessity for organizations to adjust and proactively handle novel challenges. Future directions involve standardizing legislation, developing novel applications that are in line with cultural standards, and improving ethical AI methods.
Modelling Fluid Flow in Zone 2 of an Open Horseshoe Channel with Lateral Inflow Channels
Authors: Jason Jomba , Okongo Mark , Kirimi Jacob , Onyango Jimrise
Published: August 2024

Flooding has been a problem for a long time, especially after heavy rains. Channels constructed to lessen floods are used to move water into rivers, lakes, and the ocean. Engineers have been faced with the challenge of designing drainage ditches, irrigation canals, and navigation channels while making use of hydraulic efficiency to move as much water as possible in order to generate energy. The bulk of studies on open channels have focused on rectangular, parabolic, trapezoidal, and circular channels, leaving a knowledge gap that has to be filled. Less research has been done on channels that resemble horseshoes and have lateral inflows.
Modeling a homogeneous flow in Zone 2 with a horseshoe-shaped cross-section and lateral inflows is the goal of this study. The study's goal was to ascertain how changes in the lateral inflow channels' area and an increase in the lateral inflows' length in zone 2 impact the main channel flow velocity.
The physical circumstances of the flow issue were applied to the conservation equations in order to get the governing equations. These equations were solved using the finite difference approximation method because of its accuracy, stability, and convergence. The investigation's results were displayed graphically.
The investigation found that when the cross sectional area reduces, the main channel's velocity increases. In the end, as the area of the lateral inputs reduces, so does the main channel's velocity. Flood mitigation and water collection for irrigation push the boundaries of science, technology, and engineering by requiring innovative solutions and climate change-tolerant infrastructure that increase crop yield and resilience.
Strategi Komunikasi Kementerian Kelautan dan Perikanan dalam Mensosialisasikan Kebijakan Penangkapan Ikan Terukur (Studi Kasus Nelayan Kota Tegal)
Authors: Gerungan Kirsten Kimberly Injily , Darmastuti Rini , Kristiyani Dian Novita
Published: August 2024

Kebijakan Penangkapan Ikan Terukur (PIT) merupakan suatu kebijakan yang dilakukan dengan menerapkan sistem kuota dan pembagian zona atau wilayah penangkapan ikan yang diatur dalam PP 85 Tahun 2021. Sekalipun sudah ada sudah ada sosialisasi dari Kementerian Kelautan dan Perikanan (KKP), nelayan di wilayah Pantai Utara (Pantura) Jawa termasuk nelayan Kota Tegal bergejolak memberikan respon negatif terhadap kebijakan ini. Strategi komunikasi yang kurang tepat dan perbedaan persepsi menjadi permasalahannya. Tujuan dari tulisan ini pertama, memetakan strategi komunikasi Kementerian Kelautan dan Perikanan kepada nelayan dalam membangun pemahaman tentang kebijakan penangkapan ikan terukur. Kedua, memahami persepsi nelayan terkait kebijakan ini dan memberikan masukan untuk membangun persepsi yang sama. Tulisan ini didasarkan dari hasil penelitian yang dilakukan dengan menggunakan pendekatan kualitatif dan desain penelitian studi kasus. Hasil dari penelitian ini adalah: Pertama, ada beberapa strategi komunikasi yang digunakan oleh Kementerian Kelautan dan Perikanan (KKP) dalam mensosialisasikan kebijakan penangkapan ikan terukur ini. Strategi tersebut adalah Word of Mouth (WOM), konsultasi publik dan publikasi melalui media. Kedua, strategi yang digunakan KPP belum berhasil, karena ada perbedaan persepsi antara pemerintah, dalam hal ini KPP dengan nelayan. Nelayan di Pantura beranggapan kebijakan PIT ini sangat merugikan nelayan. Karena itu, strategi komunikasi KPP seharusnya didasarkan dari persepsi nelayan.
Jogja Walking Tour Sebagai Alternatif Berwisata Kaum Muda (Analisis Interaksi Sosial Berdasarkan Perspektif Herbert Blumer)
Authors: Ningrum Dyaloka Puspita
Published: August 2024

Tren walking tour telah menjadi bisnis kreatif dengan minat khusus di beberapa kawasan tujuan untuk mengajak para pelakunya kembali memahami dinamika di masa lampau. Tulisan ini bertujuan menganalisis interaksi sosial dalam kegiatan Jogja Walking Tour sebagai alternatif berwisatanya kaum muda berdasarkan teori Interaksional Simbolik-nya Herbert Blumer dengan 3 premis pemikiran. Menggunakan metode penelitian kualitatif pada pendekatan fenomenologi, hasil penelitian menunjukkan bahwa Jogja Walking Tour tidak lepas dari daya tarik seorang story teller yang cukup informatif. Semangat walking tour dapat dijadikan model pembelajaran bagi wisatawan untuk kian mengenal lokalitas dan keanekaragaman kebudayaan tertentu di suatu masyarakat. Menelusuri aktivitas Jogja Walking Tour sebagai salah satu cara baru berwisata publik, nampaknya terus mewarnai media digital dengan sejumlah interaksi sosial para pelakunya yang sudah saling terkoneksi. Hal tersebut tentu saja sejalan dengan Perspektif-nya Herbert Blumer terkait analisis perilaku individu dengan individu yang lain dalam kelompok kecil yang bahkan dalam aktivitas walking tour interaksi itu sendiri dapat digambarkan antara “wisatawan” dengan sesamanya ataupun antara “wisatawan” dengan “penduduk setempat” yang proses komunikasinya pun terus dikembangkan selama perjalanan berlangsung. Sehingga diharapkan adanya sumbangsi dari pemerintah yang tidak hanya berfokus pada kemajuan infrastruktur pariwisatanya saja, juga dapat memfasilitasi hadirnya berbagai komunitas lokal yang dapat menggerakan industri wisata kedaerahan.
Budaya Anak Muda, Globalisasi, dan Hiburan Populer
Authors: Pramana M. Agung , Triantoro Dony Arung
Published: August 2024

Studi ini mengkaji tentang representasi budaya anak muda di dalam hiburan stand up comedy. Studi-studi sebelumnya hanya berfokus pada budaya lokal masyarakat saja, namun pada saat sekarang terjadi pembaruan dari budaya lokal ke budaya anak muda tanpa melupakan budaya lokal masyarakat. Berfokus pada komunitas standupindo Kota Dumai, artikel ini menjawab pertanyaan utama yaitu bagaimana representasi budaya anak muda yang sejalan dengan hiburan stand up comedy? Pertanyaan lanjutan yang akan penulis eksplorasi yaitu bagaimana kemunculan komunitas standupindo di Indonesia? Untuk menjawab pertanyaan-pertanyaan tersebut, penulis menggunakan data yang dihasilkan dari wawancara dan observasi, serta netnografi melalui akun instagram @standupindo_dumai dan spotify SUID Podcast. Hasil penelitian ini menunjukkan bahwa budaya lokal dan anak muda turut serta dalam mengemas hiburan stand up comedy. Contohnya membuat agenda-agenda dengan tema masyarakat Dumai, mengonsep pertunjukan stand up comedy di kafe. Hal ini menandakan bahwa antara budaya anak muda dan hiburan populer itu saling berkelindan satu dengan yang lainnya. Studi ini juga menggarisbawahi perlunya penelitian di komunitas standupindo di daerah-daerah lain untuk mengeksplorasi konsep budaya anak muda, dan untuk memperkaya pemahaman tentang budaya dan stand up comedy di Indonesia.
Literasi Digital, Lansia, dan Konstruktivisme
Authors: Sarbani Yohanes Adven , Mulyati Heni , Astuti Santi Indra
Published: August 2024

Di era digital ini, lansia dapat masuk dalam kategori imigran digital menurut klasifikasi Mark Prensky (2001). Lansia yang terbiasa menggunakan teknologi analog, kini harus berhadapan dengan perkembangan teknologi digital, internet, teknologi mobile, bahkan serta aplikasi berbasis kecerdasaan buatan (Artificial Intelligence) yang begitu canggih dan pesat perkembangannya. Akibatnya, lansia seringkali membutuhkan upaya lebih keras dalam mempelajari dan menguasai teknologi digital. Penulis dalam penelitian ini tertarik untuk menjawab pertanyaan: Pendekatan pembelajaran apa yang sesuai untuk mengajari literasi digital para lansia sehingga mereka memiliki resiliensi di era digital ini? Tujuan dari artikel ini untuk melakukan studi pustaka mengenai pendekatan pembelajaran literasi digital bagi lansia. Penulis tertarik meng­kaji pendekatan konstruktivisme sebagai metode pembelajaran literasi digital bagi lansia. Konstruktivisme beranggapan bahwa pengetahuan merupakan buah dari konstruksi pemikiran manusia. Sebagai pendekatan dalam pembelajaran, konstruktivisme meletakkan peserta didik sebagai pusat pembelajaran. Peserta didik difasilitasi untuk aktif meng­konstruksi pengetahuan serta keterampilannya. Dengan paradigma dan karakteristiknya, pendekatan pembelajaran konstruktivisme dapat digunakan dalam pelatihan literasi digital bagi lansia. Terdapat lima tahapan rekonstruksi pemikiran dalam pendekatan konstruktivisme yaitu pendahuluan, eksplorasi, restrukturisasi, aplikasi, review dan evaluasi. Pembelajaran kelima tahapan ini akan mampu mendorong lansia untuk merekonstruksi pemikirannya serta meningkatkan pengetahuan dan keterampilan terkait literasi digital sehingga meningkatkan resilensinya. Pendekatan konstruktivisme dapat digunakan program-program pendampingan lansia dalam mempelajari literasi digital, seperti Program Tular Nalar - Akademi Digital Lansia (ADL) yang digagas MAFINDO. Penelitian ini tidak menjabarkan teknik pembelajaran literasi digital berdasarkan tiga penggolongan lansia, melainkan melihat lansia secara umumnya.
Lifting the cover of the cauldron: Convection in hot planets
Authors: Ricard Yanick , Labrosse Stéphane , Dubuffet Fabien
Published: November 2014

Convection models of planetary mantles do not usually include a specific treatment of near‐surface dynamics. In all situations where surface dynamics is faster than internal dynamics, the lateral transport of material at the surface forbids the construction of a topography that could balance the internal convective stresses. This is the case if intense erosion erases the topography highs and fills in the depressions or if magma is transported through the lithosphere and spreads at the surface at large distances. In these cases, the usual boundary condition of numerical simulations, that the vertical velocity cancels at the surface should be replaced by a condition where the vertical flux on top of the convective mantle equilibrates that allowed by the surface dynamics. We show that this new boundary condition leads to the direct transport of heat to the surface and changes the internal convection that evolves toward a heat‐pipe pattern. We discuss the transition between this extreme situation where heat is transported to the surface to the usual situation where heat diffuses through the lithosphere. This mechanism is much more efficient to cool a planet and might be the major cooling mechanism of young planets. Even the modest effect of material transport by erosion on Earth is not without effect on mantle convection and should affect the heat flow budget of our planet.
Influence of ENSO on formation of tropical cloud clusters and their development into tropical cyclones in the western North Pacific
Authors: Teng Hsu‐Feng , Lee Cheng‐Shang , Hsu Huang‐Hsiung
Published: November 2014

This study analyzes the influence of El Niño–Southern Oscillation (ENSO) on the activity of tropical cloud clusters (TCCs) in the western North Pacific (WNP). A TCC must have at least one embedded mesoscale convective system and it must persist for more than 24 hours. In all, 2,248 TCCs were identified during July–October 1981–2009. While more (less) TCCs form in the eastern (western) part of the WNP during El Niño years than during normal years, the converse is true during La Niña years. The ratio of tropical cyclone (TC) numbers to TCC numbers (genesis productivity) was 27.3%, higher than found in previous study. TC genesis productivity does not correlate with the Oceanic Niño Index even in subregions of the WNP. The influence of ENSO on TC numbers in each subregion of the WNP was mainly due to changes in TCC number, not changes in TC genesis productivity.
Retrieval of river discharge solely from satellite imagery and at‐many‐stations hydraulic geometry: Sensitivity to river form and optimization parameters
Authors: Gleason Colin J. , Smith Laurence C. , Lee Jinny
Published: November 2014

Knowledge of river discharge is critically important for water resource management, climate modeling, and improved understanding of the global water cycle, yet discharge is poorly known in much of the world. Remote sensing holds promise to mitigate this gap, yet current approaches for quantitative retrievals of river discharge require in situ calibration or a priori knowledge of river hydraulics, limiting their utility in unmonitored regions. Recently, Gleason and Smith (2014) demonstrated discharge retrievals within 20–30% of in situ observations solely from Landsat TM satellite images through discovery of a river‐specific geomorphic scaling phenomenon termed at‐many‐stations hydraulic geometry (AMHG). This paper advances the AMHG discharge retrieval approach via additional parameter optimizations and validation on 34 gauged rivers spanning a diverse range of geomorphic and climatic settings. Sensitivity experiments reveal that discharge retrieval accuracy varies with river morphology, reach averaging procedure, and optimization parameters. Quality of remotely sensed river flow widths is also important. Recommended best practices include a proposed global parameter set for use when a priori information is unavailable. Using this global parameterization, AMHG discharge retrievals are successful for most investigated river morphologies (median RRMSE 33% of in situ gauge observations), except braided rivers (median RRMSE 74%), rivers having low at‐a‐station hydraulic geometry b exponents (reach‐averaged b < 0.1, median RRMSE 86%), and arid rivers having extreme discharge variability (median RRMSE > 1000%). Excluding such environments, 26–41% RRMSE agreement between AMHG discharge retrievals and in situ gauge observations suggests AMHG can meaningfully address global discharge knowledge gaps solely from repeat satellite imagery.
The first familial case of inherited 2q37.3 interstitial deletion with isolated skeletal abnormalities including brachydactyly type E and short stature
Authors: Jean‐Marçais Nolwenn , Decamp Matthieu , Gérard Marion , Ribault Virginie , Andrieux Joris , Kottler Marie‐Laure , Plessis Ghislaine
Published: November 2014

Albright hereditary osteodystrophy (AHO)‐like syndrome is also known as brachydactyly‐mental retardation syndrome (BDMR; OMIM 60040). This disorder includes intellectual disability in all patients, skeletal abnormalities, including brachydactyly E (BDE) in approximately half, obesity, and facial dysmorphism. Patients with 2q37 microdeletion or HDAC4 mutation are defined as having an AHO‐like phenotype with normal stimulatory G (Gs) function. HDAC4 is involved in neurological, cardiac, and skeletal function. This paper reports the first familial case of 2q37.3 interstitial deletion affecting two genes, HDAC4 and TWIST2. Patients presented with BDE and short stature without intellectual disability, showing that haploinsufficiency of the HDAC4 critical region may lead to a spectrum of phenotypes, ranging from isolated brachydactyly type E to BDMR. © 2014 Wiley Periodicals, Inc.
Decreasing the Energy Consumption of Memory Devices by Enhancing the Conjugation Extent of the Terminal Electron‐Donating Moieties within Molecules
Authors: Bo Rongcheng , Liu Hongzhang , Zhou Qianhao , Chen Dongyun , Xu Qingfeng , Li Najun , Li Hua , Lu Jianmei
Published: November 2014

Three small organic molecules that contained a phenothiazine backbone and triphenylamine (TPA), carbazole (CZ), or anthracene (AN) as a terminal electron donor were synthesized and fabricated in ITO/organic film/Al sandwiched memory devices. The influence of the extent of conjugation in the three molecules on the performance of their corresponding devices was investigated and the results showed that all of the fabricated devices exhibited nonvolatile ternary WORM character, whilst the switch threshold voltages decreased on moving from TPA to CZ and AN, which is promising for low‐power‐consumption data storage. These results revealed that tailoring the extent of conjugation in the terminal electron donor in the D–A molecules could effectively optimize the device performance, in particular the switch‐threshold voltage, which could be instructive for the design of low‐energy‐consumption memory materials.