bluuebunny/crossref_metadata_2025 huggingface dataset:
An agent-based persuasion model using emotion-driven concession and multi-objective optimization
Authors: Wang Zhenwu , Shen Jiayin , Tang Xiaosong , Han Mengjie , Feng Zhenhua , Wu Jinghua
Published: July 2024

Multi-attribute negotiation is essentially a multi-objective optimization (MOO) problem, where models of agent-based emotional persuasion (EP) can exhibit characteristics of anthropomorphism. This paper proposes a novel EP model by fusing the strategy of emotion-driven concession with the method of multi-objective optimization (EDC-MOO). Firstly, a comprehensive emotion model is designed to enhance the authenticity of the emotion. A novel concession strategy is then proposed to enable the concession to be dynamically tuned by the emotions of the agents. Finally, a new EP model is constructed by integrating emotion, historical transaction, persuasion behavior, and concession strategy under the framework of MOO. Comprehensive experiments on bilateral negotiation are conducted to illustrate and validate the effectiveness of EDC-MOO. These include an analysis of negotiations under five distinct persuasion styles, a comparison of EDC-MOO with a non-emotion-based MOO negotiation model and classic trade-off strategies, negotiations between emotion-driven and non-emotion-driven agents, and negotiations involving human participants. A detailed analysis of parameter sensitivity is also discussed. Experimental results show that the proposed EDC-MOO model can enhance the diversity of the negotiation process and the anthropomorphism of the bilateral agents, thereby improving the social welfare of both parties.
Minimum magnitude boundaries in probabilistic seismic hazard analysis: an insight from structural engineering
Authors: Azarbakht Alireza
Published: July 2024

In order to systematically advance our understanding of the minimum magnitude limit (Mmin) in the probabilistic seismic hazard analysis (PSHA) calculations, a novel and useful approach utilising a broad range of Single-Degree-of-Freedom oscillators and hazard conditions is being developed and tested. We have determined the most reasonable Mmin value for a variety of structures by examining the impact of Mmin on the mean annual frequency (MAF) of various limit states (LSs) (including the collapse capacity). The originality of the suggested methodology in the current work, known as the MAF saturation strategy, is the recommended Mmin, which is the cut-off value at which lesser magnitude events do add to the hazard but do not significantly change the MAF. The current work is the first to offer the MAF saturation strategy methodology, which searches for the cut-off magnitude at which the MAF value essentially remains constant even when smaller values of this cut-off are utilised as Mmin for hazard assessments. Therefore, given a series of carefully chosen ground motions in each oscillator instance, an incremental dynamic analysis is carried out (by applying the Hunt and Fill algorithm), and the appropriate LS (including the collapse capacity defined as global instability) points are calculated. Thus, the relationship between the distribution of LSs and the Engineering Demand Parameter and intensity measure is found. A simple point source hazard curve is convoluted with this distribution, yielding the structure-specific MAF. In order to find the cut-off lower magnitude (Mmin), this convolution is repeated for several Mmin values. This cut-off is defined as the point at which, when lower values are utilised as Mmin in the PSHA computation, the MAF’s values do not change considerably (with a five per cent threshold). The acquired data were thoroughly discussed in relation to various structural features and seismic input factors. The primary findings showed that each of the structures under consideration requires a Mmin value in the range of 4–4.3. Put otherwise, the suggestions seen in technical literature, which range from 4.5 to 5, are not cautious, at least not when it comes to probabilistic structural limit state frequency. The derived Mmin value is mostly controlled by the natural period of the structure and is largely unaffected by other structural characteristics like ductility, damping ratio and overstrength factor.
Angler knowledge of live bait regulations and invasive species: insights for invasive species prevention
Authors: Gerber Alexis L. , Mulligan Hannah , Kaemingk Mark A. , Coulter Alison A.
Published: July 2024

The prevention of aquatic invasive species is one of the most cost-effective management strategies for reducing negative ecological, economic, and social impacts to freshwater ecosystems. The release of leftover baitfish via the live bait trade has been identified as a high-risk pathway for introducing invasive species beyond physical barriers (e.g., mountains, dams). To assess differences in behavior surrounding live bait use and angler knowledge of invasive species, we conducted in-person angler surveys at waterbody access sites (i.e. boat ramps with available shore fishing and a shore fishing location with no boat ramp) along the Missouri River, above and below Gavins Point Dam (Yankton, South Dakota, USA). We were primarily interested in whether angler behavior and knowledge differed among fishing locations over the course of a year because of potential variation in risk. Gavins Point Dam is impervious to fish passage and prevents the spread of invasive silver carp Hypophthalmichthys molitrix and bighead carp H. nobilis (collectively known as bigheaded carp), but bigheaded carp could be transported above this dam by the use of live baitfish. Regardless of where respondents fished (above the dam/carp absent, below the dam/carp present, or both), 70% ± 11.12 of anglers used live baitfish and 57% ± 3.14 participated in ‘higher risk’ baitfish practices including release. Knowledge of bigheaded carp was limited, as only 2% ± 1.31 of respondents identified both bigheaded carp as invasive in an image collage, 51.82% ± 4.48 could not identify where invasive carp are present/absent, and 40% ± 3.34 of anglers had not received any information regarding bigheaded carp. These findings highlight limitations in angler knowledge, compliance, and identification of native and invasive species. Future implementable actions could include invasive species and baitfish release outreach via electronic media sources or additional signage that address these knowledge gaps.
Stereo-RIVO: Stereo-Robust Indirect Visual Odometry
Authors: Salehi Erfan , Aghagolzadeh Ali , Hosseini Reshad
Published: July 2024

Mobile robots and autonomous systems rely on advanced guidance modules which often incorporate cameras to enable key functionalities. These modules are equipped with visual odometry (VO) and visual simultaneous localization and mapping (VSLAM) algorithms that work by analyzing changes between successive frames captured by cameras. VO/VSLAM-based systems are critical backbones for autonomous vehicles, virtual reality, structure from motion, and other robotic operations. VO/VSLAM systems encounter difficulties when implementing real-time applications in outdoor environments with restricted hardware and software platforms. While many VO systems target achieving high accuracy and speed, they often exhibit high degree of complexity and limited robustness. To overcome these challenges, this paper aims to propose a new VO system called Stereo-RIVO that balances accuracy, speed, and computational cost. Furthermore, this algorithm is based on a new data association module which consists of two primary components: a scene-matching process that achieves exceptional precision without feature extraction and a key-frame detection technique based on a model of scene movement. The performance of this proposed VO system has been tested extensively for all sequences of KITTI and UTIAS datasets for analyzing efficiency for outdoor dynamic and indoor static environments, respectively. The results of these tests indicate that the proposed Stereo-RIVO outperforms other state-of-the-art methods in terms of robustness, accuracy, and speed. Our implementation code of stereo-RIVO is available at: https://github.com/salehierfan/Stereo-RIVO.
Teledrive: An Embodied AI Based Telepresence System
Authors: Banerjee Snehasis , Paul Sayan , Roychoudhury Ruddradev , Bhattacharya Abhijan , Sarkar Chayan , Sau Ashis , Pramanick Pradip , Bhowmick Brojeshwar
Published: July 2024

This article presents ‘Teledrive’, a telepresence robotic system with embodied AI features that empowers an operator to navigate the telerobot in any unknown remote place with minimal human intervention. We conceive Teledrive in the context of democratizing remote ‘care-giving’ for elderly citizens as well as for isolated patients, affected by contagious diseases. In particular, this paper focuses on the problem of navigating to a rough target area (like ‘bedroom’ or ‘kitchen’) rather than pre-specified point destinations. This ushers in a unique ‘AreaGoal’ based navigation feature, which has not been explored in depth in the contemporary solutions. Further, we describe an edge computing-based software system built on a WebRTC-based communication framework to realize the aforementioned scheme through an easy-to-use speech-based human-robot interaction. Moreover, to enhance the ease of operation for the remote caregiver, we incorporate a ‘person following’ feature, whereby a robot follows a person on the move in its premises as directed by the operator. Moreover, the system presented is loosely coupled with specific robot hardware, unlike the existing solutions. We have evaluated the efficacy of the proposed system through baseline experiments, user study, and real-life deployment.
Who Am I? Self-concept in Adults with Cystic Fibrosis: Association with Anxiety and Depression
Authors: Harrigan Maggie , Mulrennan Siobhain , Jessup Melanie , Waters Phoebe , Bennett Kellie
Published: July 2024

Cystic Fibrosis (CF) is a progressive condition resulting in reduced lung function and strongly associated with elevated anxiety and depression symptoms. Self-concept refers to an individual’s overarching sense of identity, a positive level of which is widely associated with reduced anxiety and depression. There is a significant lack of self-concept research within CF. This study explores the association between self-concept and anxiety and depression in adults with CF. 64 adults living with CF in Western Australia completed validated online questionnaires (Generalised Anxiety Disorder-7, Patient Health Questionnaire-9, Tennessee Self-Concept Questionnaire 2: Short-Form) and consented to the collection of medical data. Descriptive, t-test, correlation and multiple regression analysis were undertaken. Higher levels of self-concept were associated with lower levels of anxiety and depression symptoms. Lower self-concept levels were a significant predictor of increased anxiety and depression symptoms after accounting for physical health status. Mean self-concept scores for those who required mental health intervention were significantly lower compared to those that did not. This study identifies a significant relationship between self-concept and anxiety and depression in adults with CF. Further research is required to establish causation and test the feasibility of self-concept interventions in reducing anxiety and depression symptoms.
Conformal predictions for probabilistically robust scalable machine learning classification
Authors: Carlevaro Alberto , Alamo Teodoro , Dabbene Fabrizio , Mongelli Maurizio
Published: July 2024

Conformal predictions make it possible to define reliable and robust learning algorithms. But they are essentially a method for evaluating whether an algorithm is good enough to be used in practice. To define a reliable learning framework for classification from the very beginning of its design, the concept of scalable classifier was introduced to generalize the concept of classical classifier by linking it to statistical order theory and probabilistic learning theory. In this paper, we analyze the similarities between scalable classifiers and conformal predictions by introducing a new definition of a score function and defining a special set of input variables, the conformal safety set, which can identify patterns in the input space that satisfy the error coverage guarantee, i.e., that the probability of observing the wrong (possibly unsafe) label for points belonging to this set is bounded by a predefined $$\varepsilon$$
ε
error level. We demonstrate the practical implications of this framework through an application in cybersecurity for identifying DNS tunneling attacks. Our work contributes to the development of probabilistically robust and reliable machine learning models.
Detection Method of Manipulator Grasp Pose Based on RGB-D Image
Authors: Huang Cheng , Pang Zhen , Xu Jiazhong
Published: July 2024

In order to better solve the visual detection problem of manipulator grasping non-cooperative targets, we propose a method of grasp pose detection based on pixel point and feature fusion. By using the improved U2net network as the backbone for feature extraction and feature fusion of the input image, and the grasp prediction layer detects the grasp pose on each pixel. In order to adapt the U2net to grasp pose detection and improve its detection performance, we improve detection speed and control sampling depth by simplifying its network structure, while retaining some shallow features in feature fusion to enhance its feature extraction capability. We introduce depthwise separable convolution in the grasp prediction layer, further fusing the features extracted from the backbone to obtain predictive feature maps with stronger feature expressiveness. FocalLoss is selected as the loss function to solve the problem of unbalanced positive and negative samples in network training. We use the Cornell dataset for training and testing, perform pixel-level labeling on the image, and replace the labels that are not conducive to the actual grasping. This adaptation helps the dataset better suit the network training and testing while meeting the real-world grasping requirements of the manipulator. The evaluation results on image-wise and object-wise are 95.65% and 91.20% respectively, and the detection speed is 0.007 s/frame. We also used the method for actual manipulator grasping experiments. The results show that our method has improved accuracy and speed compared with previous methods, and has strong generalization ability and portability.
High rate of potentially inappropriate medication use in older people: a case–control study
Authors: Érszegi András , Csupor Dezső , Bodó Gabriella , Engi Zsófia , Bahar Muh. Akbar , Matuz Mária , Benkő Ria , Pető Zoltán , Viola Réka
Published: July 2024

Annually, 172 million fall events cause temporary or permanent impairment in older adults, and this number is increasing. Contributing factors that increase the risk for falls include age, polypharmacy, and malnutrition. This study evaluated medications mainly included in the EU(7)-PIM (potentially inappropriate medication) list. From March 21, 2022, to July 6, 2022, 945 patients who experienced a fall and visited the Department of Emergency Medicine at the Albert Szent-Györgyi Health Centre of the University of Szeged in Hungary. Data from 886 patients were collected (study group). The control group included 1364 patient data collected from three general practice in Hungary. The use of ≥ 2 EU(7)-PIM drugs was found to be associated with increased risk for falls (adjusted odds ratio [AOR], 1.38; 95% confidence interval [CI] 1.01–1.88). Piracetam (AOR, 1.81; 95% CI, 1.28–2.57) and trimetazidine (AOR, 1.62; 95% CI, 1.17–2.24) were associated with increased risk for falls. Doxazosin was associated with a low risk for falls (AOR, 0.59; 95% CI, 0.41–0.86). Tiapride (AOR, 3.54; 95% CI, 1.75–7.17), gliclazide (AOR, 1.57; 95% CI, 1.02–2.43), and vinpocetine (AOR, 1.95; 95% CI, 1.29–2.95) are not included in the EU(7)-PIM list; however, they are associated with increased risk for falls. Long-acting benzodiazepines (AOR, 1.79; 95% CI, 1.20–2.68), antidepressants (AOR, 1.89; 95% 95% CI, 1.37–2.61), serotonin–norepinephrine reuptake inhibitor (AOR, 2.82; 95% CI, 1.41–5.67; p < 0.01), and selective serotonin reuptake inhibitor (AOR, 1.88; 95% CI, 1.24–2.85) were also associated with increased risk for falls. However, Z-drugs were associated with a low risk for falls (AOR, 0.57; 95% CI, 0.36–0.92). With the help of this tool, trimetazidine and piracetam are filtered as EU(7)-PIM drugs associated with increased risk for falls.
Association between inflammatory markers, body composition and frailty in home-dwelling elderly: an 8-year follow-up study
Authors: Bålsrud Pia , Ulven Stine M. , Ottestad Inger , Retterstøl Kjetil , Schwab Ursula , Holven Kirsten B.
Published: July 2024

Frailty has been linked to inflammation and changes in body composition, but the findings are inconsistent. To explore this, we used the Frailty Index (FI) definition to (1) investigate the association between levels of inflammatory markers (baseline) and change in FI score after 8 years of follow-up and (2) investigate the longitudinal associations between inflammatory markers, body composition, and frailty. Home-dwelling elderly (≥ 70 years) were invited to participate in the study and re-invited to a follow-up visit 8 years later. This study includes a total of 133 participants. The inflammatory markers included were high-sensitive C-reactive protein (hs-CRP), interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-α), and glycoprotein acetyls (Gp-acetyls). We used the body composition markers fat mass, fat-free mass, and waist circumference. The FI score consisted of 38 variables. Additional clinical assessments such as blood pressure and body mass index (BMI), as well as information about daily medications, were collected at both visits. Linear regression model and Spearman’s rank correlation were used to investigate associations. We showed that the FI score increased after 8 years, and participants with higher hs-CRP levels at baseline had the largest change in the FI score. Changes in fat mass were significantly correlated with changes in hs-CRP and IL-6, and changes in waist circumference were significantly correlated with changes in TNF-α. The use of drugs increased during the 8 years of follow-up, which may have attenuated the associations between inflammation and frailty. However, elevated concentrations of hs-CRP in the elderly may be associated with an increased risk of frailty in subsequent years.
Intratumoral Delivery of Genetically Engineered Anti-IL-6 Trans-signaling Therapeutics
Authors: Bento Raphaela , Scheller Jürgen , Parekkadan Biju
Published: July 2024

Interleukin-6 (IL-6) is a highly pro-inflammatory cytokine involved in the etiopathology of several inflammatory diseases and cancer. As so, the inhibition of IL-6 signaling pathways has emerged as an attractive therapeutic avenue for the treatment of several chronic diseases. Since IL-6 trans-signaling was described as the pathological branch of IL-6, selective inhibitors were developed. Next-generation variants with increased trans-signaling specificity and potency emerged as great candidates for the treatment of several diseases, with reduced off-target effects. The highly time-consuming and costly processes involving recombinant protein production, however, have hampered the progress of anti-cytokine pharmaceuticals in clinic so far. Herein, we developed gene therapeutic modalities of IL-6-trans-signaling inhibitors as alternatives for sustained recombinant protein secretion. By using an IL-6-dependent lymphoma cell line and xenograft tumor model, we demonstrated the superior inhibitory potential of second-generation anti-IL-6 trans-signaling therapeutic. We compared the efficiency of distinct gene delivery modalities using a bioluminescent biomarker probe and observed consistent protein production via cell-based delivery. When delivered intratumorally, genetically engineered sgp130FlyRFc-secreting cells significantly reduced tumor burden and increased animal survival, representing a promising therapeutic avenue to be explored in clinically relevant gene delivery applications.
Reshoring manufacturing: the influence of industry 4.0, Covid-19, and made-in effects
Authors: Stentoft Jan , Mikkelsen Ole Stegmann , Wickstrøm Kent Adsbøll
Published: July 2024

Empirical investigations of how the reshoring of manufacturing is affected by Industry 4.0 technologies, supply chain disruptions, and made-in effects are rare in the extant academic literature. This paper contains an empirical analysis of how these variables affect reshoring and reshoring intentions. Results from a 2022 questionnaire survey including 152 offshoring manufacturing firms show that reshoring and reshoring intentions are associated positively with investments in automation in manufacturing, and with employee made-in. Results also showed that while Covid-19 associated disruptions increased firms’ reshoring intentions equally across firm sizes, smaller and larger firms reacted quite differently towards more well-known disruption types: larger firms decreasing reshoring intentions with higher levels of uncertainty and smaller firms increasing reshoring intentions with higher levels of uncertainty. These results point to the importance of creating consciousness about the dynamics of production localization and how firm-level and situation-specific contingencies may interfere with Industry 4.0 technology-, supply chain disruption-, and made-in effects on strategic reshoring decisions.
Blunt Trauma Neck with Thyroid Cartilage Subluxation with no External Sign
Authors: Ahmad Zeeshan , Singh Kriti
Published: July 2024

Trauma to the neck can produce catastrophic results as neck houses plethora of vital structures and is relatively an unprotected anatomical territory. Blunt trauma to the neck, excluding cervical spine injuries, represents only 5% of all neck trauma, but can be very challenging to assess since its presentation is often delayed. Penetrating injuries, on the other hand, are more common, and even when they seem to be only superficial and minor, always need thorough investigation and observation. Primary stabilization of the patient followed by an extensive evaluation needs to be done in all cases of neck trauma. CECT neck and thorax along with fibreoptic laryngoscopy remain the main modalities of diagnosis following a neck trauma. The initial approach to any kind of neck injury, whether penetrating or blunt, is performed according current Advanced Trauma Life Support (ATLS) or European Trauma Course (ETC) protocols, which both use the structured ‘ABCD’ approach. A motor vehicle accident (MVA) remains the most common cause of blunt neck injury, causing direct pressure to the anterior neck from the dashboard, steering wheel or airbag deployment. Direct pressure to the neck is transduced to the trachea and causes compression of the oesophagus against the cervical spine. Laryngotracheal trauma continues to be a rare entity and is the second most common cause of death in patients with head and neck trauma after intracranial injury. Only 0.5% of multiple trauma patients were reported to have injury to the airway at any level. Stabilize the airway first. Immediate surgical airway procedure can be necessary in less familiar circumstances and environments. If possible, define landmarks before the procedure. Defining anatomical zones is useful in penetrating injuries, although these do not guide diagnostic or therapeutic management completely. In unstable patients, elective surgical exploration is recommended instead of extensive diagnostic work-up. Unstable patients still need immediate exploration, whereas all stable patients will first be assessed with clinical examination and CT angiography and fibreoptic laryngoscopy. Thus the take home message is to consider all neck injuries an emergency and proceed with the diagnosis and management without delay.
Systematic Curiosity as an Integrative Tool for Human Flourishing: A Conceptual Review and Framework
Authors: Le Cunff Anne-Laure
Published: July 2024

This paper reviews seventy years of theoretical research and proposes systematic curiosity as an integrative tool for human flourishing with a focus on four key aspects: firstly, acknowledge curiosity’s multidimensional nature instead of harmonizing its complex taxonomy; secondly, emphasizing intentional curiosity as opposed to impulsive curiosity; thirdly, prioritizing domain-general curiosity for broader applicability across educational, organizational, and therapeutic settings; and lastly, focusing on curiosity as a developable skill rather than an innate trait. By segmenting systematic curiosity into cognitive, emotional, and behavioral components, and relating these to interactions with the self, others, and the world, the framework aims to apply across the spectrum of human experience. Furthermore, the framework encourages an exploration of various evidence-based activities for flourishing so individuals can discover the most suitable strategies for their specific context. Implications for both theory and practice are examined, limitations are discussed, and avenues for future research are suggested.
The intensive care unit psychosocial care scale: validity and reliability study in cardiac surgery patients
Authors: Yaman Aktaş Yeşim , Karabulut Neziha
Published: July 2024

This study aimed to test the validity and reliability of the ICU Psychosocial Care Scale in Turkish, which was developed to measure the psychosocial care of cardiac critical patients. This study was a methodological design. The study sample consisted of 180 critically ill cardiac patients meeting the inclusion criteria. The study used the ICU-Psychosocial Care (ICU-PC) Scale and The Intensive Care Experiences Scale for data collection. Data were analyzed using SPSS 22.0 and AMOS V 24.0 statistical package programs. Content validity, construct validity, reliability and concurrent validity tests were performed. The sample (n = 180) was predominantly male (66.1%) with a mean age of 65.96 ± 15.46 years. Confirmatory factor analysis was applied to confirm the 3-dimensional and 14-item structure of the scale. The fit indices of the scale were found to be χ2 = 89.24, df = 52, χ2/df = 1.716, goodness of fit index = 0.94, comparative fit index = 0.97, incremental fit index = 0.97, Tucker-Lewis index = 0.95, root mean square error of approximation = 0.05, standardized root mean square residual = 0.05. Cronbach’s alpha coefficient of ICU-PC scale was 0.87. The ICU-PC scale is a valid, reliable and distinctive scale in assessing the psychosocial care of critically ill cardiac patients.
Nucleus Accumbens Corticotropin-Releasing Hormone Neurons Projecting to the Bed Nucleus of the Stria Terminalis Promote Wakefulness and Positive Affective State
Authors: Pan Gaojie , Zhao Bing , Zhang Mutian , Guo Yanan , Yan Yuhua , Dai Dan , Zhang Xiaoxi , Yang Hui , Ni Jinfei , Huang Zhili , Li Xia , Duan Shumin
Published: July 2024

The nucleus accumbens (NAc) plays an important role in various emotional and motivational behaviors that rely on heightened wakefulness. However, the neural mechanisms underlying the relationship between arousal and emotion regulation in NAc remain unclear. Here, we investigated the roles of a specific subset of inhibitory corticotropin-releasing hormone neurons in the NAc (NAcCRH) in regulating arousal and emotional behaviors in mice. We found an increased activity of NAcCRH neurons during wakefulness and rewarding stimulation. Activation of NAcCRH neurons converts NREM or REM sleep to wakefulness, while inhibition of these neurons attenuates wakefulness. Remarkably, activation of NAcCRH neurons induces a place preference response (PPR) and decreased basal anxiety level, whereas their inactivation induces a place aversion response and anxious state. NAcCRH neurons are identified as the major NAc projection neurons to the bed nucleus of the stria terminalis (BNST). Furthermore, activation of the NAcCRH-BNST pathway similarly induced wakefulness and positive emotional behaviors. Taken together, we identified a basal forebrain CRH pathway that promotes the arousal associated with positive affective states.
Advances of Synergistic Electrocatalysis Between Single Atoms and Nanoparticles/Clusters
Authors: Luo Guanyu , Song Min , Zhang Qian , An Lulu , Shen Tao , Wang Shuang , Hu Hanyu , Huang Xiao , Wang Deli
Published: July 2024

Combining single atoms with clusters or nanoparticles is an emerging tactic to design efficient electrocatalysts. Both synergy effect and high atomic utilization of active sites in the composite catalysts result in enhanced electrocatalytic performance, simultaneously provide a radical analysis of the interrelationship between structure and activity. In this review, the recent advances of single-atomic site catalysts coupled with clusters or nanoparticles are emphasized. Firstly, the synthetic strategies, characterization, dynamics and types of single atoms coupled with clusters/nanoparticles are introduced, and then the key factors controlling the structure of the composite catalysts are discussed. Next, several clean energy catalytic reactions performed over the synergistic composite catalysts are illustrated. Eventually, the encountering challenges and recommendations for the future advancement of synergistic structure in energy-transformation electrocatalysis are outlined.
Improvement in battery technologies as panacea for renewable energy crisis
Authors: Ajibade Hafeez , Ujah Chika Oliver , Nnakwo Kingsley C. , Kallon Daramy V. V.
Published: July 2024

This review article explores the critical role of efficient energy storage solutions in off-grid renewable energy systems and discussed the inherent variability and intermittency of sources like solar and wind. The review discussed the significance of battery storage technologies within the energy landscape, emphasizing the importance of financial considerations. The review highlighted the necessity of integrating energy storage to balance supply and demand while maintaining grid system stability. The review thoroughly explored the characteristics and applications of lead-acid and lithium batteries. It drew distinctions and emphasized their safety and application advantages. The comparative review covered key factors, including cycle life, power density, energy density, efficiency, and cost considerations. Additionally, the article explored future trends, emerging technologies, and research directions. The findings of the review revealed that each battery technology offers unique advantages, presenting a challenge in selecting a preferred option for diverse applications. Furthermore, the review discussed the Total Cost of Ownership (TCO) of batteries, considering factors beyond the initial investment, with a specific emphasis on economic viability. This comprehensive approach provided a valuable tool for making informed decisions regarding the adoption of battery storage solutions in the pursuit of a sustainable energy future.
Federated quantum long short-term memory (FedQLSTM)
Authors: Chehimi Mahdi , Chen Samuel Yen-Chi , Saad Walid , Yoo Shinjae
Published: July 2024

Quantum federated learning (QFL) can facilitate collaborative learning across multiple clients using quantum machine learning (QML) models, while preserving data privacy. Although recent advances in QFL span different tasks like classification while leveraging several data types, no prior work has focused on developing a QFL framework that utilizes temporal data to approximate functions useful to analyze the performance of distributed quantum sensing networks. In this paper, a novel QFL framework that is the first to integrate quantum long short-term memory (QLSTM) models with temporal data is proposed. The proposed federated QLSTM (FedQLSTM) framework is exploited for performing the task of function approximation. In this regard, three key use cases are presented: Bessel function approximation, sinusoidal delayed quantum feedback control function approximation, and Struve function approximation. Simulation results confirm that, for all considered use cases, the proposed FedQLSTM framework achieves a faster convergence rate under one local training epoch, minimizing the overall computations, and saving 25–33% of the number of communication rounds needed until convergence compared to an FL framework with classical LSTM models.
Out of school children in the context of new policy trajectories and interlocking crises in Zimbabwe: a transformative social policy perspective
Authors: Chipenda Clement , Cochrane Logan
Published: July 2024

In the past two decades, Zimbabwe has been confronted with a concerning increase in the number of out-of-school children and youth (OOSC). Emerging evidence suggests that nearly a million children fall into this category, representing approximately half of the country’s adolescent population. This phenomenon has significantly impacted on Zimbabwe’s educational landscape and socio-economic fabric. Despite its gravity, research on OOSC remains limited. To address this gap, our study triangulates data from various sources to explore OOSC prevalence, examining geographical disparities and underlying causes. In addition, we investigate the nexus between OOSC and the prevailing socio-economic crises in the country. Our analysis reveals that, despite Zimbabwe’s robust education policies and legislative framework, OOSC prevalence rates remain high. Implementation gaps persist, hindering effective solutions. The challenge of OOSC is seen being intertwined with the multifaceted crises and socio-economic dynamics affecting the nation. Geographical, wealth-based, social, religious, cultural, and economic disparities all contribute to the persistence of OOSC. To combat this challenge, we propose several recommendations rooted in the political economy-oriented concept of transformative social policy. These are crystallised around the need to develop a social contract prioritising the fulfilment of rights, social justice, human capacity, and agency. Emphasis is on the importance of a holistic approach, aligning economic policies with social goals to foster an environment conducive to education. By transforming social institutions and structures, we argue that the scourge of OOSC can be addressed and pave way for a more equitable and inclusive education system.
Comparative assessment of the effect of storage vessels, thatched roof and industrial activity on harvested rainwater quality in south eastern, Nigeria using water quality index
Authors: Nicholas Eno-obong Sunday , Ukoha Pius Onyeoziri , Ihedioha Janefrances Ngozi
Published: July 2024

Rainwater is usually harvested through catchment systems such as roofs or directly from the sky for storage in different vessels for eventual use due to water scarcity which is as a result of increased in water demand, rapid industrialization, increasing pollution, global warming and climate change. This study was carried out to assess the effects of galvanized iron and PVC tanks, thatched roof and industrial activity on harvested rainwater quality by investigating physico-chemical properties, heavy metals, coliform level and metal composition of the storage vessels. Seven-two harvested rainwater samples were collected from four locations in the urban and rural areas of Delta and Enugu States, Nigeria between the months of April-July, 2018. Rainwater samples stored for 1 month to a year in storage vessels were considered. The results were compared with water quality standards (USEPA, WHO, NAFDAC and NSDWQ) and Water Quality Index ratings. Heavy metals (Pb, Fe, Cr, Zn and Al) were analyzed using Flame-AAS; other parameters were determined using standard methods. The WQI ratings were calculated using the weighted arithmetic method. The results were analysed using descriptive and two-way ANOVA statistical analysis. Results obtained in both areas of the States showed mean values ranging from 5.60 ± 0.28 to 7.60 ± 0.20 for pH, E.coli (0.00 ± 0.00–1.00 ± 0.00 cfu/mL), EC (7.00 ± 1.41–108.70 ± 8.62 µs/cm), colour (0.44 ± 0.01–12.86 ± 0.17 TCU) and heavy metals (mg/L) gave 0.00 ± 0.00–1.52 ± 0.13 for Fe, Pb (0.00 ± 0.00–0.29 ± 0.02), Cr (0.00 ± 0.00–0.30 ± 0.05), Zn (0.00 ± 0.00–0.05 ± 0.02) and Al (0.00 ± 0.00–4.65 ± 2.24). The results of the harvested rainwater samples analyzed showed that, the mean values of all the parameters analyzed were below and within the water quality set standard with the exception of a few in both areas in each of the States and were significantly different at (p < 0.05). The results of WQI ratings showed that, harvested rainwater qualities in both States were rated from excellent to unfit for drinking water quality. Generally, harvested rainwater stored in PVC tanks rated better than rainwater stored in galvanized iron tanks though not free of contamination. The storage duration for harvested rainwater is very important for its water quality, hence, harvested rainwater whether it is stored or not should be subjected to treatment before being use for potable usages.
Hydropower in Authoritarian Brazil
Authors: Johnson Matthew P.
Published: July 2024

During the later twentieth century, Brazil's right-wing military dictatorship built a vast network of hydropower dams that became one of the world's biggest low-carbon electricity grids. Weighed against these carbon savings, what were the costs? Johnson unpacks the social and environmental implications of this project, from the displacement of Indigenous and farming communities to the destruction of Amazonian biodiversity. Drawing on rich archival material from forty sites across Brazil, Paraguay, and the United States, including rarely accessed personal collections, Johnson explores the story of the military ofﬁcers and engineers who created the dams and the protestors who fought them. Brazilian examples are analyzed within their global context, highlighting national issues with broad consequences for both social and environmental justice. In our race to halt global warming, it is vital that we learn from past experiences and draw clear distinctions between true environmentalism and greenwashed political expedience.
Factors Contributing to Slab Locations and Geometries in Reconstructions of Past Mantle Flow
Authors: Weber Joshua , Flament Nicolas
Published: July 2024

Individual sinking slabs present markedly different geometries between 410 and 660 km depths, from vertical slabs penetrating the lower mantle to slabs stagnating above the lower mantle. The proposed factors determining these contrasted geometries include mantle viscosity and the magnitude and evolution of trench retreat. Here, we assess the success of paleo‐geographically driven global mantle flow models in matching slabs in tomographic models between 400 km and 1,000 km depth. We quantify the spatial match between predicted present‐day mantle temperature anomalies and vote maps of tomographic models. We investigate the sensitivity of the spatial match to input parameters of the mantle flow model: imposed tectonic reconstruction, model start age, and viscosity contrast between the upper and lower mantle. We evaluate the visual match between model slabs and tomographic vote maps for three circum‐Pacific regions with contrasted slab dip angles between 400 km and 1,000 km depth. Predicted model slabs better match slabs inferred from tomography when there is an increase in viscosity at 660 km depth. The temporal evolution of the models and the global match at present day suggest that the subduction history could be refined in the global tectonic reconstructions that we considered. For example, we suggest that the subduction to the east of Japan should be offset by approximately 100 km to the west at ∼80 Ma to match the anchoring of a continuous slab into the lower mantle suggested by tomography.
Seamless Map of Depth to the Moho Interface in the Afro‐Arabian Region Using Gravity Data Derived From EGM2008
Authors: Lewi Elias
Published: July 2024

The Afro‐Arabian region is one of the few places on land, where rifting processes at divergent plate boundaries can be thoroughly investigated. One of the crucial factors in understanding rifting processes involves assessing the crustal thickness. In this study, gravity data from the Earth Gravitational Model 2008 is used to create a seamless map of the depth to the Moho interface. Unlike many previous investigations that focused on specific localized areas, within the region, results from the current study provide a comprehensive view. The depth obtained from the current investigation aligns well with findings from earlier studies, exhibiting a bias of 0.69 km and a standard deviation of 3.89 km. Within the region, maximum and minimum depths to the Moho interface are observed beneath the northwest Ethiopian Plateau and the Gulf of Aden Rift (GAR), respectively. Analyzing profiles across the Red Sea, Main Ethiopian, and GARs, the study concluded that the Southern Main Ethiopian Rift is in an earlier stage of the rifting process, while the GAR is at an advanced stage. Furthermore, the interpretation of the current findings led to the inference that there might exist two potential plume tails driving the rifting process in the East Africa Rift—one originating from the Afar region and the other from South Kenya. This inference primarily relies on the isostatic compensation stages observed in the various rift systems throughout the region.
Vertical Variations of Photosystem Energy Partitioning in the Canopy of the Subtropical Cropland
Authors: Zhong Duwei , Chi Yonggang , Huang Zhi , Liu Pai , Zhang Guoping , Zhou Lei
Published: July 2024

Leaf‐level photosynthetic capacity exhibits vertical variations along the canopy profile. The dynamics of photosystem energy partitioning involved in dissipating absorbed light energy, namely photochemical yield (ΦP), fluorescence yield (ΦF), and the efficiency of non‐photochemical quenching yield (ΦN) in dissipating excess light energy as heat, along the vertical canopy profile remain unclear. Here, vertical variations in photosystem energy partitioning and photosynthetic nitrogen allocation were measured at different canopy positions of rice using active fluorescence detection and photosynthetic gas exchange measurement in subtropical southern China. We observed the decline in leaf nitrogen per leaf mass (Nmass) from the top to the bottom of the canopy. ΦP significantly decreased from vegetative growth stage to ripening stage, while ΦN showed an opposite trend. The top and bottom leaves had consistent relationships between photosynthetic nitrogen allocation and photosystem energy partitioning. Our findings reveal the vertical variations in physiological traits of subtropical rice.
Modeling cellular responses to serum and vitamin D in microgravity using a human kidney microphysiological system
Authors: Lidberg Kevin A. , Jones-Isaac Kendan , Yang Jade , Bain Jacelyn , Wang Lu , MacDonald James W. , Bammler Theo K. , Calamia Justina , Thummel Kenneth E. , Yeung Catherine K. , Countryman Stefanie , Koenig Paul , Himmelfarb Jonathan , Kelly Edward J.
Published: July 2024

The microgravity environment aboard the International Space Station (ISS) provides a unique stressor that can help understand underlying cellular and molecular drivers of pathological changes observed in astronauts with the ultimate goals of developing strategies to enable long- term spaceflight and better treatment of diseases on Earth. We used this unique environment to evaluate the effects of microgravity on kidney proximal tubule epithelial cell (PTEC) response to serum exposure and vitamin D biotransformation capacity. To test if microgravity alters the pathologic response of the proximal tubule to serum exposure, we treated PTECs cultured in a microphysiological system (PT-MPS) with human serum and measured biomarkers of toxicity and inflammation (KIM-1 and IL-6) and conducted global transcriptomics via RNAseq on cells undergoing flight (microgravity) and respective controls (ground). Given the profound bone loss observed in microgravity and PTECs produce the active form of vitamin D, we treated 3D cultured PTECs with 25(OH)D3 (vitamin D) and monitored vitamin D metabolite formation, conducted global transcriptomics via RNAseq, and evaluated transcript expression of CYP27B1, CYP24A1, or CYP3A5 in PTECs undergoing flight (microgravity) and respective ground controls. We demonstrated that microgravity neither altered PTEC metabolism of vitamin D nor did it induce a unique response of PTECs to human serum, suggesting that these fundamental biochemical pathways in the kidney proximal tubule are not significantly altered by short-term exposure to microgravity. Given the prospect of extended spaceflight, more study is needed to determine if these responses are consistent with extended (>6 months) exposure to microgravity.
A dataset of hidden small non-coding RNA in the testis of heat-stressed models revealed by Pandora-seq
Authors: Gan Mailin , Lei Yuhang , Wang Kai , Wang Yan , Liao Tianci , Ma Jianfeng , Zhu Li , Shen Linyuan
Published: July 2024

Infertility, a worldwide reproductive health concern, impacts approximately one in five couples. Male infertility, stemming from spermatogenic dysfunction and reduced sperm quality, stands as a primary factor contributing to infertility. Given the global decrease in male fertility linked to environmental factors like the greenhouse effect, it is crucial to develop a comprehensive understanding of how increased temperatures impact both the quantity and quality of sperm. In this study, we utilized Pandora-seq technology to detect the small non-coding RNAs (sncRNAs) expression profile in the testicular tissue of heat-stressed mice. The investigation explores the dynamic shifts in sncRNAs within the mouse testis under heat stress, including miRNAs, tsRNAs, piRNAs, rsRNAs and other sncRNAs. Furthermore, we successfully identified differentially expressed sncRNAs in testicular tissues before and after heat stress. Subsequently, we conducted functional enrichment analysis on the potential predicted target genes of differentially expressed miRNAs and tsRNAs. These datasets will constitute a valuable foundational resource for further investigations into the decline in male reproductive capacity triggered by heat stress.
Design of 3D printing osteotomy block for foot based on triply periodic minimal surface
Authors: Xie Hai-qiong , Xie Hai-tao , Luo Tao , Yang Bai-yin , Gan Dao-qi , Liao Dong-fa , Cui Lin , Song Lei , Xie Mei-ming
Published: July 2024

The ankle joint, which connects the lower limbs and the sole of the foot, is prone to sprain during walking and sports, which leads to ankle arthritis. Supratroleolar osteotomy is an ankle preserving operation for the treatment of ankle arthritis, in which the osteotomy is an important fixing and supporting part. In order to avoid stress shielding effect as much as possible, the osteotomy block is designed as a porous structure. In this study, the osteotomy block was designed based on three-period minimal surface, and the designed structure was manufactured by 3D printing. The mechanical properties of different structures were studied by mechanical test and finite element simulation. In mechanical tests, the Gyroid structure showed a progressive failure mechanism from bottom to bottom, while the Diamond structure showed a shear failure zone at 45° Angle, which was not conducive to energy absorption and was more prone to brittle fracture than the Gyroid structure. Therefore, the Gyroid structure is valuable for further research in the development of porous osteotomy.