bluuebunny/crossref_metadata_2025_split huggingface dataset:
Condition-Based Production for Stochastically Deteriorating Systems: Optimal Policies and Learning
Authors: Drent Collin , Drent Melvin , Arts Joachim 
Published: February 2024

Problem definition: Production systems deteriorate stochastically due to use and may eventually break down, resulting in high maintenance costs at scheduled maintenance moments. This deterioration behavior is affected by the system’s production rate. Although producing at a higher rate generates more revenue, the system may also deteriorate faster. Production should thus be controlled dynamically to tradeoff deterioration and revenue accumulation in between maintenance moments. We study systems for which the relation between production and deterioration is known and the same for each system and systems for which this relation differs from system to system and needs to be learned on-the-fly. The decision problem is to find the optimal production policy given planned maintenance moments (operational) and the optimal interval length between such maintenance moments (tactical). Methodology/results: For systems with a known production-deterioration relation, we cast the operational decision problem as a continuous time Markov decision process and prove that the optimal policy has intuitive monotonic properties. We also present sufficient conditions for the optimality of bang-bang policies, and we partially characterize the structure of the optimal interval length, thereby enabling efficient joint optimization of the operational and tactical decision problem. For systems that exhibit variability in their production-deterioration relations, we propose a Bayesian procedure to learn the unknown deterioration rate under any production policy. Numerical studies indicate that on average across a wide range of settings (i) condition-based production increases profits by 50% compared with static production, (ii) integrating condition-based production and maintenance decisions increases profits by 21% compared with the state-of-the-art sequential approach, and (iii) our Bayesian approach performs close, especially in the bang-bang regime, to an Oracle policy that knows each system’s production-deterioration relation. Managerial implications: Production should be adjusted dynamically based on real-time condition monitoring and the tactical maintenance planning should anticipate and integrate these operational decisions. Our proposed framework assists managers to do so optimally. Funding: This work was supported by the Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Grant 439.17.708]. Supplemental Material: The online appendix is available at https://doi.org/10.1287/msom.2022.0473 .
Frontiers in Operations: Battery as a Service: Flexible Electric Vehicle Battery Leasing
Authors: Shi Lingling , Hu Bin 
Published: February 2024

Problem definition: The electric vehicle (EV) manufacturer NIO adopts a swappable-battery design and a battery-leasing business model known as battery as a service (BaaS). It recently introduced flexible battery leasing, which allows customers to temporarily up-/downgrade their primary leased batteries based on the needs for range. We investigate whether this business model innovation is viable, namely whether introducing flexible battery leasing in BaaS could benefit the manufacturer, the customers, and the environment compared with simple battery leasing. Methodology/results: Adopting a game-theoretical model, we find that introducing flexible battery leasing in BaaS can simultaneously improve the manufacturer profit as well as reduce the total customer cost and the total battery capacity. Such win-win-win outcomes generally occur for large high-capacity battery ranges and moderate high-capacity battery costs—both consistent with the ongoing trend in the EV industry and a model-calibration exercise. We further show that this key finding is robust for correlated regular and peak needs for range and when launching BaaS with flexible battery leasing and that if the manufacturer was to choose a high-capacity battery range for flexible battery leasing, it would choose one such that battery reallocation alone can meet all battery up-/downgrade demand without acquiring additional batteries. Managerial implications: Our findings confirm that flexible battery leasing can be a viable BaaS business model innovation and offer insights into when this may be the case. This insight strengthens the strategic support for EV manufacturers’ potential adoption of the swappable-battery design and the BaaS model, and it may inform their operating policies to implement flexible battery leasing. History: This paper has been accepted in the Manufacturing & Service Operations Management Frontiers in Operations Initiative. Supplemental Material: The online appendix is available at https://doi.org/10.1287/msom.2022.0587 .
Optimal Service Time Windows
Authors: Ulmer Marlin W. , Goodson Justin C. , Thomas Barrett W. 
Published: February 2024

Because customers must usually arrange their schedules to be present for home services, they desire an accurate estimate of when the service will take place. However, even when firms quote large service time windows, they are often missed, leading to customer dissatisfaction. Wide time windows and frequent failures occur because time windows must be communicated to customers in the face of several uncertainties: future customer requests are unknown, final service plans are not yet determined, and when fulfillment is outsourced to a third party, the firm has limited control over routing procedures and eventual fulfillment times. Even when routing is performed in-house, time windows often do not receive explicit consideration. In this paper, we show how companies can communicate reliable and narrow time windows to customers in the face of arrival time uncertainty when time window decisions are decoupled from routing procedures. Under assumptions on the shape of arrival time distributions, our main result characterizes the optimal policy, identifying structure that reduces a high-dimensional stochastic nonlinear optimization problem to a root-finding problem in one dimension. The result inspires a practice-ready heuristic for the more general case. Relative to the industry standard of communicating uniform time windows to all customers, and to other policies applied in practice, our method of quoting customer-specific time windows yields a substantial increase in customer convenience without sacrificing reliability of service. Our results show that time windows should be tailored to individual customers, time window sizes should be proportional to the service level, larger time windows should be assigned to earlier requests and smaller time windows to later requests, larger time windows should be assigned to customers further from the depot of operation and smaller time windows to closer customers, high quality time windows can be identified even with limited data, and cost savings afforded by routing efficiency should be measured against potential losses to customer convenience. Funding: M. W. Ulmer’s work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) Emmy Noether Programme, [project 444657906]. Supplemental Material: The e-companion is available at https://doi.org/10.1287/trsc.2023.0004 .
Martha's rule: applying a behaviour change framework to understand the potential of complementary roles of clinicians and patients in improving safety of patients deteriorating in hospital
Authors: Subbe Christian P , Steinmo Siri H , Haskell Helen , Barach Paul 
Published: February 2024

Aims/Background Martha's rule stipulates the right of patients and their families to escalate care as a way to improve safety while in hospital. This article analyses the possible impact of the proposed policy through the lens of a behaviour change framework and explores new opportunities presented by the implementation of Martha's rule.. Methods A descriptive analysis was undertaken of interactions between patients, family, friends and clinicians during clinical deterioration in hospital. The capability–opportunity–motivation behaviour change framework was applied to understand reasons for failure to respond to deterioration. Results Care of deteriorating patients requires recording of vital signs, recognition of abnormalities, reporting through escalation and response by a competent clinician. Regarding the care of patients who deteriorate in hospital, healthcare professionals have capability and motivation to provide safe, high-quality care, but often lack the physical and social opportunity to report or respond through lack of time and peer pressure. Patients and family members have motivation and might have time to support safety systems. Martha's rule or similar arrangements allow healthcare organisations to create opportunities for patients and families to report and escalate care to experts in critical care when they recognise deterioration. Conclusions The capability–opportunity–motivation behaviour change framework provides insights into the causes of failure to rescue in deteriorating patients and an argument for opportunities through escalation by patients and families through Martha's rule. This might reduce the number of system failures and enable safer care.
Family Caregivers’ Attitudes and Perspectives About the Sexual and Reproductive Health of Women With Intellectual and Developmental Disabilities: An Online Survey
Authors: Powell Robyn M. , Albert Sasha M. , Nthenge Serah , Mitra Monika 
Published: February 2024

Abstract
Although sexual and reproductive health is critically important for women with intellectual and developmental disabilities (IDD), there is limited research elucidating the role of family caregivers in assisting women with IDD access sexual and reproductive health services and information. Understanding the family caregivers’ attitudes and perspectives is essential to improving access to sexual and reproductive health services and information for women with IDD. A cross-sectional online survey of family caregivers of women with IDD was administered between June and October 2018. Quantitative analysis was conducted for closed-ended responses, and qualitative analysis was conducted for open-ended responses. The analytic sample included 132 family caregivers. Most participants were parents and reported being closely involved in their family member’s access to sexual and reproductive health services and information. Although most participants expressed that sexual and reproductive health services and information are essential for women with IDD, qualitative analysis of participants’ open-ended responses revealed both supportive and restrictive attitudes and perspectives on sexual and reproductive health services and information for women with IDD. Supportive attitudes and perspectives included (1) “knowledge is power;” (2) supported decision-making; and (3) protection against sexual abuse. Restrictive attitudes and perspectives included (1) dependent on the individual; (2) lack of autonomy; and (3) placing responsibility on disability. Greater attention from policymakers and practitioners to systems-level changes, including universal and accessible sexual education for women with IDD, supported decision-making, and sexual abuse prevention measures, are urgently needed.
Failure recovery in the MANTRA architecture with an IPoWDM SONiC node and 400ZR/ZR+ pluggables
Authors: Sgambelluri Andrea , Scano Davide , Morro Roberto , Cugini Filippo , Ortiz Jordi , Martinez José Manuel , Riccardi Emilio , Castoldi Piero , Pavon Pablo , Giorgetti Alessio 
Published: February 2024

The utilization of IP over wavelength division multiplexing (IPoWDM) boxes in optical networks introduces coordination issues at the control plane level between the optical and packet domains. Indeed, IPoWDM boxes are technically packet devices, but the configuration of coherent optical pluggables requires knowledge of optical network state information (e.g., wavelength availability). MANTRA (metaverse ready architectures for open transport) aims to define a new SDN control architecture for managing IPoWDM, enhancing coordination between the packet and optical controllers. Within MANTRA, two distinct architectures were presented:DualandSingle. However, only the roles related to controller management are defined, while clear procedures are not specified for dealing with resource provisioning and failure recovery. This leads to the need for the definition and implementation of tailored procedures. Besides the characterization of the coherent optical pluggables performance, this paper presents and compares three procedures based on MANTRA to coordinate and control IPoWDM nodes in a multi-layer network performing failure recovery. The considered solutions have been designed and experimentally validated with a focus on the achievable traffic recovery performance considering IPoWDM configuration and communication within the SDN control architecture. An experimental testbed, comprising a sliced IPoWDM node running an extended version of the open-source SONiC network operating system, has been deployed to validate these solutions, with a comprehensive analysis of the time required to recover a real traffic flow that spans both the packet and optical domains.
Prevalence, treatment, and factors associated with cryptococcal meningitis post introduction of integrase inhibitors antiretroviral based regimens among People Living with HIV in Tanzania
Authors: Minja Makyao , Mbilinyi Tusaligwe , Mkinga Bryceson , Philipo Erick G. , Owenya Joyce , Kilonzi Manase 
Published: February 2024

Objective
This study aimed to assess the prevalence of Cryptococcal Meningitis (CM), treatment practice, and the associated factors post-introduction of Tenofovir Lamivudine and Dolutegravir (TLD) regimen among People Living with HIV (PLHIV) in Tanzania.

Methods
This was an analytical cross-sectional study, and the data was collected retrospectively in three public regional referral hospitals (RRHs) in Dar es Salaam, Tanzania. A total of 405 files of the PLHIV admitted in the medical wards on the TLD regimen from January 2019 to December 2022 were reviewed. The collected information includes the patient’s demographic characteristics, Cryptococcal status, CD4 level at the time of CM diagnosis, status of using ART, CM treatment approach, and outcome. Data was analyzed using SPSS software version 23.

Results
Out of 405 patients, the majority 267(65.9%) were female, 224(55.3%) were aged between 36–55 years, and 293(72.3%) were married. ART defaulters were found to be 37(9.1%). The prevalence of CM was found to be 48(11.9%), out of which 42(87.5%) received fluconazole alone. ART defaulter and marital status significantly (p-value < 0.05) were associated with those who tested CM positive.

Conclusion
The study found the prevalence of CM among PLHIV to be significantly high and the majority were treated with fluconazole alone. ART defaulters and marital status were significantly associated with one being CM positive. Responsible authorities and stakeholders should enforce guideline adherence and PLHIV should be encouraged on medication adherence.
Sediment transport modelling upstream of Al Kufa Barrage
Authors: Omran Zainab Ali , Al-mansori Nassrin Jassim Hussien 
Published: February 2024

Abstract
This study estimated the amount of bed sediment load upstream of Kufa Barrage mainly depending on the hydrodynamic conditions, sediment concentration, and hydraulic parameters. Ten cross-sections approximately over 2 km in length in front of the barrage were selected. Velocities and suspended sediment concentrations at 0.2, 0.6, and 0.8 of the water depth at each section were recorded using an ADCP device. A depth-integrated sampling was utilized to examine the collected data from 6th January to 15th October 2022. It was noted that the effective depth-to-width computation methods and the Toffaleti sediment transport function with the Van Rijn fall velocity were the most compatible and appropriate approaches for determining the sediment transport potential in the selected reach. It was also noted that such techniques were better than the previous formulae to predict the total sediment load. The results revealed excellent agreement between the mean sediment discharge obtained using HEC-RAS 6.2, equal to 6.214 kg/s, and the mean sediment discharge obtained from the field measurements, equivalent to 7.142 kg/s.
Win-Loss-Win in the US–China Game: A Cross-cultural Analysis of a TV Anchor Debate Between Trish Regan and Liu Xin
Authors: Yuan Lingyu , Tian Dexin 
Published: February 2024

Abstract
Guided by the cultural game theory, WGTICC and cultural analysis model, this study has found such game intentions and communication strategies as shaming the invited counterpart versus correcting the host calmly, turning a debate into a Q&A versus using the Q&A as a meaningful presentation, and getting ready to listen versus demonstrating courage, sincerity, and cogency have been adopted during the 3 rounds of debate, thus illustrating and expanding the third assumption in the water and game theory from a win-loss to a win-loss-win result. In terms of cultural roots, Fox Business News, as an example of Western media, has been shifting from objective, accurate, and fair journalism ethics to unilateralism, catalyzed by prioritizing the US interests. In contrast, the Chinese media, like CGTN, have been reshaping themselves for survival and performance employing and developing multiple online platforms while converging with social media.
The sound of the Italian comic book: Representing noises, senses, and emotions across 80 years
Authors: Pischedda Pier Simone 
Published: February 2024

Abstract
This article will describe the long-time use of sound symbolic forms (including ideophones and interjections) in Italian Disney comic book publications, from the 1930s until recent times. This is achieved through the diachronic analysis of ∼4,700 entries coming from a corpus of sound symbolic forms as compiled by the author, taken from 210 Disney stories. Each of the entries was classified according to five different sound symbolic types based on the event, scenario, or situation they referred to. This analysis will provide an ideal chance to comment on several features exploited in the creation and use of sound symbolic forms and will be offered together with elucidations on a few under-researched areas within the linguistic study of sound symbolism. Quantitative data will be provided on (1) the lexical status of these forms, (2) their language of origin, and (3) the frequency of the five sound symbolic types. Additional commentary will also be offered on the various lexical and phonaesthetic experimentations featured in the comic strips. The results will be based on the comparison of the data coming from the corpus with existing research on these topics.
Unveiling the role of rare earth dopant in metal molybdate nanocomposites via facile microwave-combustion strategy and their effect on antibacterial activity
Authors: Shameem Abdul Samad , Uma Priya Mohan , Siva Vadivel , Murugan Anbazhagan , Padmavathi Krishnasamy , Al-Sehemi Abdullah G. 
Published: February 2024

Abstract
Developing a robust material holding antimicrobial assets has been an efficient strategy for reducing the risk of infections related to healthcare, significantly with medical devices and touch surfaces. Molybdenum-based compounds have drawn momentous attraction because of their unique characteristics. A series of undoped and 5 % rare earth (Ce & La) doped metal (Ni, Co & Bi) molybdate nanocomposites have been prepared by facile microwave combustion method and characterized. The present study investigates the effect of dopants on crystal structure and morphology, and their impact on anti-bacterial properties is noticed. The UV–Vis. absorption spectra of all samples show a broad absorption band between 280 and 430 nm. The antibacterial properties of the prepared nanocomposites have been examined by the agar diffusion method against three Gram-positive and two Gram-negative bacteria, showing good bactericidal efficiency for all samples, except 5 % Ce–NiMoO4 (antibacterial activity exclusively against Gram-positive bacteria) and 5 % La–NiMoO4 (no antibacterial activity) nanocomposites. This work provided a novel pathway in the biomaterial field.
Molecular level interaction, molecular structure, chemical reactivity, electronic and topological exploration and docking studies of 1-acetyl-4-piperidinecarboxylic acid
Authors: Selvaraj Selvakumari , Sambantham Muthu , Ayyar Manikandan , Kadaikunnan Shine , Alharbi Naiyf S. 
Published: February 2024

Abstract
The current study deals with the theoretical enquiries of 1-acetyl-4-piperidinecarboxylic acid, a derivative of piperidine. The moiety of piperidine has extensive spread of usages in the field of pharmacology. Employing DFT techniques, theoretical analysis on the caption compound was performed and optimised molecular structure was obtained. Energy gap between HOMO and LUMO along with global reactivity parameters, NLO behaviour, molecular electrostatic potential studies were computed and analysed for the heading compound in gaseous & solvent phases (methanol, ethanol and acetone). On the chemical in the title, topology research such as ELF, LOL and RDG were conducted in different phases. Electron2013hole analysis on excited states was executed. The TD-DFT methodology has been used to assist in the scrutiny of the UV–visible spectra in dissimilar solvents. The energy of interaction and densities of electron of acceptor and donor bonds were computed using NBO research. To confirm the reactive sites in the molecule, Fukui functions were accomplished. Additionally, docking studies against antithrombotic targets were achieved employing autodock tools and drug-like characteristics were also discovered. The steadiness of the targeted proteins has also been projected using Ramachandran plots.
لترقيةمهارة الاستماع STAD استخدام نموذج التعلم التعاوني
Authors: Harahap Fadhilah el-Wahdah , , Ritonga , Mahyudin , Yasmadi Yasmadi 
Published: February 2024

Purpose- This research aims to know the effects of listening skills by using the Student Team Achievement Division (STAD) type cooperative learning models in Islamic Senior High School 2 Padang.
Design/Methodology/Approach- This research is a quantitative experimental research where the object is students of Islamic Senior High School 2 Padang. The data in this research was obtained through observation, interview, and test.
Findings- The results of this research indicate that there is an effect of listening skills by using the STAD type cooperative learning models because there is an increase in student learning outcomes. This can be seen from the average value of the student before using the model is 60 while the average value of the student after is 83.
Research Limitation/ Implications- Due to the time limits, this research couldn’t go any further. However, it obtained satisfactory results and can be expected to help develop innovative learning models for listening skill in Islamic Senior High School 2 Padang.