bluuebunny/crossref_metadata_2025_split huggingface dataset:
Underwater guidance of distributed autonomous underwater vehicles using one leader
Authors: Kim Jonghoek 
Published: October 2022

AbstractConsider the case where autonomous underwater vehicles (AUVs) are deployed to monitor a 3D underwater environment. This paper tackles the problem of guiding all AUVs to the destination while not colliding with a priori unknown 3D obstacles. Suppose that among all AUVs, only the leader AUV has an ability of locating itself, while accessing a destination location. A follower, an AUV that is not a leader, has no sensors for locating itself. Every follower can only measure the relative position of its neighbor AUVs utilizing its sonar sensors. Our paper addresses distributed controls, so that multiple followers track the leader while preserving communication connectivity. We design controls, so that all AUVs reach the destination safely, while maintaining connectivity in cluttered 3D environments. To the best of our knowledge, our article is novel in developing 3D underwater guidance controls, so that all AUVs equipped with sonar sensors are guided to reach a destination in a priori unknown cluttered environments. MATLAB simulations are used to validate the proposed guidance scheme in underwater environments with many obstacles.
Fabrication of IrxTa100−xOy as counter electrodes in saline water
Authors: Lee Na Yeon , Im Han Seo , Lee Sumin , Lee Hyun Joo , Choi Hyun Seung , Lim Sung Yul 
Published: October 2022

AbstractOne of the key challenges to realize electrolysis of seawater is to develop highly active and stable electrocatalysts in oxygen evolution reaction (OER). This is crucial even for the development of electrocatalysts for hydrogen evolution reaction (HER) using three‐electrode configuration because damaged surfaces of counter electrodes (CEs), which exposed to electrochemical oxidative environments often limit the performance of cathodes in working electrodes (WEs) by lowering the electrical conductivity and poisoning the surface of electrocatalysts. Herein, we demonstrate the use of IrxTa100−xOy as a CE in simulated seawater. IrxTa100−xOy‐coated electrodes as CEs with optimized Ir:Ta ratios enable the high‐valence states of Ir for improving activity and selectivity toward the OER. Moreover, the IrxTa100−xOy CEs ensure unhindered electrochemical performance of Pt for HER in contrast to carbon‐based materials, thus highlighting their reliability as a CE.
Phytochemical, Antiplasmodial, and Cytotoxic Investigation of Euclea natalensis A.DC. subsp. natalensis Leaves
Authors: Tajuddeen Nasir , Swart Tarryn , Hoppe Heinrich C. , van Heerden Fanie R. 
Published: October 2022

AbstractPrevious research shows that the root and bark extracts of Euclea natalensis have antiplasmodial activity, but the leaves have not been examined yet. This study investigated the phytochemical, antiplasmodial, and cytotoxic properties of the plant leaves. The activity against 3D7 Plasmodium falciparum was determined using the parasite lactate dehydrogenase assay, and the cytotoxicity against Vero and HeLa cells was evaluated using the MTT and resazurin assays, respectively. The bioactive compounds were isolated by chromatography, and their structures were established with spectroscopic and spectrometric techniques. The extract showed antiplasmodial activity (IC50=25.6 μg/mL) and was not cytotoxic against Vero cells (IC50=403.7 μg/mL). Purification of the extract afforded six flavonoid glycosides, four triterpenoids, and a coumarin. The glycosides showed antiplasmodial and cytotoxic activities, against HeLa cells, at 50 μg/mL, but the activity was reduced at 10 μg/mL. Naphthoquinones, which are among the predominant phytochemicals in the root and root bark of E. natalensis, were not detected in the leaves.
Corncob powder and transglutaminase addition in pasta: Effects on proximate composition, physical and cooking properties, and overall acceptability of the product
Authors: Nguyen Thi Quynh Ngoc , Tran Thi Thu Tra , Mai Van Xuan Hoang , Nguyen Thanh Binh , Ton Nu Minh Nguyet , Le Van Viet Man 
Published: October 2022

AbstractBackground and ObjectivesDietary fiber is important to human health and fiber‐rich foods are highly desired. Pasta is a common staple and widely consumed in the world. However, the main material to produce conventional pasta is durum wheat semolina which is poor in fiber. The objective of this study is to investigate the effect of adding different levels of corncob powder in the pasta formulation on the proximate composition, physical and cooking properties, and overall acceptability of the product. In addition, this study also evaluated the effect of transglutaminase treatment condition including enzyme doses and incubation times on the physical and cooking properties as well as sensory acceptance of corncob‐incorporated pasta.FindingsCorncob powder at 5%, 10%, 15%, 20% (w/w) of durum wheat semolina was added to make corncob‐incorporated pasta. The fiber content and antioxidant activities of pasta increased with the increase of corncob addition level. At 20% addition level, the fiber and total phenolic content of the corncob‐incorporated pasta increased by two times and four times, respectively, compared to those of the control pasta. However, the cooking loss was increased while optimal cooking time, elongation rate, tensile strength and overall acceptability were decreased with the increase of corncob addition level. Transglutaminase (TG) treatment of the blended dough from 90% semolina and 10% corncob powder was successfully applied to improve the cooking loss, elongation rate, tensile strength as well as the overall acceptability of the incorporated pasta. At the TG dose of 0.75 U/g protein and incubation time of 10 min, the cooking and physical quality as well as overall acceptability of corncob‐incorporated pasta were comparable to those of the control pasta.ConclusionThe incorporation of corncob powder increased the fiber content and antioxidant activities of pasta but negatively affected the cooking and physical properties as well as the overall acceptability. These negative effects of corncob powder incorporation can be overcome by treatment of the blended dough with TG at appropriate dose and incubation time.Significance and NoveltyCorncob, an abundant agriculture by‐product, can be utilized to enhance fiber content and antioxidant activities of pasta. A combination of corncob and TG addition can be used to produce fiber‐rich pasta with acceptable cooking and physical quality as well as overall acceptability.
Effects of Particle Size Distribution of Low‐Density Particles on Gas‐Solid Behavior in Fluidized Beds
Authors: Goshima Takashi , Nishida Yuki , Mizuta Kei , Nii Susumu 
Published: October 2022

AbstractThree hollow borosilicate glass particles 7040S‐R, 7040S‐F1, and 7040S‐F2 with different particle size distributions were prepared. The size of fluidized particles of 7040S‐F2 was similar with that of the primary particles such as fluid catalytic cracking (FCC), while the bed height was more than twice the static bed height. The small bubbles were uniformly dispersed in the bed, and the high magnitude of the particle velocity different from that of the FCC was observed. The Geldart A particle 7040S‐F2 could help solve the unavoidable problems with superfine particles 5070S, leading to poor fluidization through repeated and/or long‐term operations. 7040S‐F2 would serve as guidance for designing new particles to provide the favorable fluidization expected from catalytic fluidized‐bed reactors with high contact efficiency.
Circular economy business models: Towards achieving sustainable development goals in the waste management sector—Empirical evidence and theoretical implications
Authors: Puntillo Pina 
Published: October 2022

AbstractThis paper investigates how and whether circular economy (CE) business models affect the implementation of sustainable development goals (SDGs) in the waste management sector. A case study is used to determine the relationship between CE business models and SDGs. It shows that CE business models, potentially, can contribute directly to achieving a significant number of SDGs. The strongest relationships are between the CE business model and the targets of SDG4 (Quality education); SDG 5 (Gender equality); SDG 7 (Affordable and Clean Energy), SDG 8 (Decent working and economic growth); SDG 9 (Industry, innovation and infrastructure), SDG 11 (Sustainable cities and communities) SDG 12 (Responsible consumption and production). After a narrative literature review on the intersection between CE and SDGs, the paper performed a case study on Contarina SpA, a firm that developed a business model to recycle wastes into recyclable materials under a CE approach. The case findings could stimulate further research into how this and similar types of business models will help societies to change from the ‘use‐it‐once‐and‐throw‐it away’ mentality of linear business models to the integrated, holistic, CE model that seeks to emulate nature's cyclical systems, and achieve the implementation of sustainable development goals (SDGs).
An energy‐efficient power allocation scheme for millimeter‐wave MIMO‐NOMA systems
Authors: Sakhaei Gharagezlou Abdolrasoul , Nangir Mahdi , Poorfaraj Liqvan Amir , Abedi Jirdehi Azadeh 
Published: October 2022

SummaryThere are many challenges in fifth generation (5G) telecommunication systems, due to the increasing demands and applications. The most important of which are need to have higher energy efficiency (EE) and spectral efficiency (SE). They are critical in the practical multiple‐input multiple‐output (MIMO) telecommunication systems. Non‐orthogonal multiple access (NOMA) methods and millimeter‐waves can be used in conjunction with MIMO systems to improve their EE and SE performance. In this paper, we investigate the application of NOMA and mm‐Wave transmission in the downlink of MIMO systems. Then, we formulate the optimization problem for users in MIMO‐NOMA systems to maximize the EE that is subject to minimum data rate to satisfy required quality of service (QoS) and maximum transmission power. To achieve the optimal power allocation for users, we reach a problem for the EE maximization that is non‐convex and solution of the optimization problem is not trivial. We exploit a lower bound of the data rate and the Lagrange dual function to convert it to a convex and unconstrained problem, which is easy to solve. In the next step, we derive a relation for determining the optimal power allocation of users. In addition, a numerical algorithm is presented that can be used to solve the problem. According to the simulation results of the proposed algorithm, our method performs better and provides higher EE than both orthogonal multiple access and equal power allocation schemes.
Multinational data show that conspiracy beliefs are associated with the perception (and reality) of poor national economic performance
Authors: Hornsey Matthew J. , Pearson Samuel , Kang Jemima , Sassenberg Kai , Jetten Jolanda , Van Lange Paul A. M. , Medina Lucia G. , Amiot Catherine E. , Ausmees Liisi , Baguma Peter , Barry Oumar , Becker Maja , Bilewicz Michal , Castelain Thomas , Costantini Giulio , Dimdins Girts , Espinosa Agustín , Finchilescu Gillian , Friese Malte , González Roberto , Goto Nobuhiko , Gómez Ángel , Halama Peter , Ilustrisimo Ruby , Jiga‐Boy Gabriela M. , Karl Johannes , Kuppens Peter , Loughnan Steve , Markovikj Marijana , Mastor Khairul A. , McLatchie Neil , Novak Lindsay M. , Onyekachi Blessing N. , Peker Müjde , Rizwan Muhammad , Schaller Mark , Suh Eunkook M. , Talaifar Sanaz , Tong Eddie M. W. , Torres Ana , Turner Rhiannon N. , Vauclair Christin‐Melanie , Vinogradov Alexander , Wang Zhechen , Yeung Victoria Wai Lan , Bastian Brock 
Published: October 2022

AbstractWhile a great deal is known about the individual difference factors associated with conspiracy beliefs, much less is known about the country‐level factors that shape people's willingness to believe conspiracy theories. In the current article we discuss the possibility that willingness to believe conspiracy theories might be shaped by the perception (and reality) of poor economic performance at the national level. To test this notion, we surveyed 6723 participants from 36 countries. In line with predictions, propensity to believe conspiracy theories was negatively associated with perceptions of current and future national economic vitality. Furthermore, countries with higher GDP per capita tended to have lower belief in conspiracy theories. The data suggest that conspiracy beliefs are not just caused by intrapsychic factors but are also shaped by difficult economic circumstances for which distrust might have a rational basis.
Observer‐bias and sampling uncertainties in riverine wood flux and volume estimation from video monitoring technique
Authors: Ghaffarian Hossein , MacVicar Bruce , Hortobagyi Borbala , Zhang Zhi , Robert Florian , Vaudor Lise , Petit Stéphane , Piégay Hervé 
Published: October 2022

AbstractWood is an integral part of rivers that can have both positive and negative impacts on natural systems and infrastructures. Different techniques have been developed to quantify wood flux or discharge in rivers. Among them, the stream‐side video monitoring technique has proven effective for at‐a‐station wood monitoring with a high temporal and spatial resolution over an indefinite time period. However, the visual annotation of wood pieces in the videos is subject to uncertainties due to observer bias or ‘vision limitations’, and video sampling or ‘time limitations. Vision limitations mean that there are patches in the recorded image that may or may not be considered as wood pieces depending on the judgement of the observer. Time limitations mean that the video record may be sampled to estimate the wood flux rather than completing a census of the full record due to the time‐consuming nature of continuous visual annotation. To assess these uncertainties, six flood events and 13 video segments corresponding to more than 37 days and 64,000 pieces of wood were analysed on two different rivers (Ain and Allier Rivers in France). The results show that while there is a significant difference between observers for the detection of small wood pieces (< 1 m in length), no significant difference exists for the detection of large wood pieces (> 1 m in length). The application of a truncation length (i.e., considering only wood pieces with a size higher than a certain threshold) reduces the piece number uncertainty significantly without resulting in a meaningful change in the total volume of wood. For the time limitation, it is shown that sampling uncertainty depends on wood flux related to water discharge and flood stages (rising versus falling), so a dynamic sampling strategy that depends on flood stage is recommended.
X‐Linked Hypophosphatemia Caused by the Prevailing North American PHEX Variant c.*231A>G; Exon 13–15 Duplication Is Often Misdiagnosed as Ankylosing Spondylitis and Manifests in Both Men and Women
Authors: Dahir Kathryn McCrystal , Black Margo , Gottesman Gary S , Imel Erik A , Mumm Steven , Nichols Cindy M , Whyte Michael P 
Published: October 2022

ABSTRACTInactivating mutations of the gene coding for phosphate‐regulating endopeptidase homolog X‐linked (PHEX) cause X‐linked hypophosphatemia (XLH). A novel PHEX variant, c.*231A>G; exon 13–15 duplication, has emerged as a common cause of XLH in North America, emphasizing the importance of delineating its clinical presentation. Here, a comprehensive description of a five‐generation American kindred of 22 treatment‐naïve individuals harboring the c.*231A>G; exon 13–15 duplication is provided. After XLH was diagnosed in the proposita, pro‐active family members used social media to facilitate a timely assessment of their medical history. Most had normal height and 50% were normophosphatemic. Thirteen had been given a diagnosis other than XLH, most commonly ankylosing spondylitis, and XLH was only established after genetic testing. The prevalent phenotypic characteristics of c.*231A>G; exon 13–15 duplication were disorders of dentition (68.2%), enthesopathies (54.5%), fractures/bone and joint conditions (50%), lower‐limb deformities (40.9%), hearing loss/tinnitus (40.9%), gait abnormalities (22.7%), kidney stones/nephrocalcinosis (18.2%), chest wall disorders (9.1%), and Chiari/skull malformation (4.5%). More affected males than females, respectively, had gait abnormalities (42.9% versus 13.3%), lower‐limb deformities (71.4% versus 26.7%), and enthesopathies (85.7% versus 40%). Single phenotypes, observed exclusively in females, occurred in 22.7% and multiple phenotypes in 77.3% of the cohort. However, as many as six characteristics could develop in either affected males or females. Our findings will improve diagnostic and monitoring protocols for XLH. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
Perceived discrimination and depressive symptoms: What role does the cognitive triad play?
Authors: Sacco Abbi , Pössel Patrick , Roane Sarah J. 
Published: October 2022

AbstractObjectiveThe present study was designed to integrate perceived everyday discrimination (PED) as stressor in Beck's cognitive theory of depression. We focused on the relationships between PED, the individual components of the cognitive triad, and depressive symptoms and the role of gender and race in these relationships.MethodParticipants included 243 technical and community college students (women: 59%; men: 41%; Black: 30%; White: 51%). They completed measures examined PED, the cognitive triad, and depressive symptoms.ResultsConducting mediation analyses using PROCESS 4.1.1, we found significant indirect effects from PED on depressive symptoms through negative views of the self and world. The indirect effect through negative views of the future was not significant. The indirect effects of negative views of the world and future were significantly stronger in women participants than men participants and the indirect effect of negative views of the world was significantly stronger in White students than Black students.ConclusionsOur findings generally support the integration of PED as stressor into Beck's cognitive theory independent of gender and race. This highlights the responsibility of therapists to assist clients in coping with PED and to advocate for equality within organizations, communities, and society in general.
Engineered skeletal muscle recapitulates human muscle development, regeneration and dystrophy
Authors: Shahriyari Mina , Islam Md Rezaul , Sakib Sadman M. , Rinn Malte , Rika Anastasia , Krüger Dennis , Kaurani Lalit , Gisa Verena , Winterhoff Mandy , Anandakumar Harithaa , Shomroni Orr , Schmidt Matthias , Salinas Gabriela , Unger Andreas , Linke Wolfgang A. , Zschüntzsch Jana , Schmidt Jens , Bassel‐Duby Rhonda , Olson Eric N. , Fischer André , Zimmermann Wolfram‐Hubertus , Tiburcy Malte 
Published: October 2022

AbstractBackgroundHuman pluripotent stem cell‐derived muscle models show great potential for translational research. Here, we describe developmentally inspired methods for the derivation of skeletal muscle cells and their utility in skeletal muscle tissue engineering with the aim to model skeletal muscle regeneration and dystrophy in vitro.MethodsKey steps include the directed differentiation of human pluripotent stem cells to embryonic muscle progenitors followed by primary and secondary foetal myogenesis into three‐dimensional muscle. To simulate Duchenne muscular dystrophy (DMD), a patient‐specific induced pluripotent stem cell line was compared to a CRISPR/Cas9‐edited isogenic control line.ResultsThe established skeletal muscle differentiation protocol robustly and faithfully recapitulates critical steps of embryonic myogenesis in two‐dimensional and three‐dimensional cultures, resulting in functional human skeletal muscle organoids (SMOs) and engineered skeletal muscles (ESMs) with a regeneration‐competent satellite‐like cell pool. Tissue‐engineered muscle exhibits organotypic maturation and function (up to 5.7 ± 0.5 mN tetanic twitch tension at 100 Hz in ESM). Contractile performance could be further enhanced by timed thyroid hormone treatment, increasing the speed of contraction (time to peak contraction) as well as relaxation (time to 50% relaxation) of single twitches from 107 ± 2 to 75 ± 4 ms (P < 0.05) and from 146 ± 6 to 100 ± 6 ms (P < 0.05), respectively. Satellite‐like cells could be documented as largely quiescent PAX7+ cells (75 ± 6% Ki67−) located adjacent to muscle fibres confined under a laminin‐containing basal membrane. Activation of the engineered satellite‐like cell niche was documented in a cardiotoxin injury model with marked recovery of contractility to 57 ± 8% of the pre‐injury force 21 days post‐injury (P < 0.05 compared to Day 2 post‐injury), which was completely blocked by preceding irradiation. Absence of dystrophin in DMD ESM caused a marked reduction of contractile force (−35 ± 7%, P < 0.05) and impaired expression of fast myosin isoforms resulting in prolonged contraction (175 ± 14 ms, P < 0.05 vs. gene‐edited control) and relaxation (238 ± 22 ms, P < 0.05 vs. gene‐edited control) times. Restoration of dystrophin levels by gene editing rescued the DMD phenotype in ESM.ConclusionsWe introduce human muscle models with canonical properties of bona fide skeletal muscle in vivo to study muscle development, maturation, disease and repair.
Quantifying the impact of symptomatic acute hepatic porphyria on well‐being via patient‐reported outcomes: Results from the Porphyria Worldwide Patient Experience Research (POWER) study
Authors: Dickey Amy , Wheeden Kristen , Lyon Desiree , Burrell Sue , Hegarty Sean , Falchetto Rocco , Williams Edrin R. , Barman‐Aksözen Jasmin , DeCongelio Marc , Bulkley Alison , Matos Joana E. , Mnif Tarek , Mora Jordanna , Ko John J. , Meninger Stephen , Lombardelli Stephen , Nance Danielle 
Published: October 2022

AbstractAcute hepatic porphyria (AHP) is a group of rare genetic diseases of heme biosynthesis resulting in severe neurovisceral attacks and chronic complications that negatively impact patients' well‐being. This study evaluated the impacts of AHP on patients' physical and emotional health from a global perspective. Adult patients from the United States, Italy, Spain, Australia, Mexico, and Brazil with AHP with >1 porphyria attack within the past 2 years or receiving intravenous hemin and/or glucose for attack prevention completed an online survey assessing demographics, health characteristics, and patient‐reported outcomes. Results were analyzed collectively and by patient subgroups. Ninety‐two patients with AHP across the six countries completed the survey. More than 70% of patients reported that their physical, emotional, and financial health was fair or poor. Among patients who reported pain, fatigue, and muscle weakness, 94.3%, 95.6%, and 91.4%, respectively, reported that these symptoms limited daily activities. Moderate to severe depression was present in 58.7% of patients, and moderate to severe anxiety in 48.9% of patients. Of the 47% of patients who were employed, 36.8% reported loss in productivity while at work. Among patients, 85.9% reported that they had to change or modify goals that were important to them because of AHP. Aside from differences in healthcare utilization and pain severity, scores did not significantly vary with attack rate or use of hemin or glucose prophylactic treatments. AHP substantially impacts patients' physical and emotional well‐being, regardless of hemin or glucose prophylactic treatment or frequency of attacks. This multinational study demonstrates that there is substantial disease burden for patients with AHP, even among those experiencing sporadic attacks or using prophylactic treatment.