bluuebunny/crossref_metadata_2025 huggingface dataset:
3D exoscopic versus microscopic superficial temporal artery to middle cerebral artery bypass surgery for moyamoya disease – a comparative series
Authors: Veldeman Michael , Rossmann Tobias , Nurminen Ville , Huhtakangas Justiina , Haeren Roel Hubert Louis , Hafez Ahmad , Niemela Mika , Lehecka Martin
Published: June 2024

Purpose

Superficial temporal artery to middle cerebral artery (STA-MCA) direct bypass surgery is the most common surgical procedure to treat moyamoya disease (MMD). Here, we aim to compare the performance of the 3D exoscope in bypass surgery with the gold standard operative microscope.

Methods

All direct STA-MCA bypass procedures performed at a single university hospital for MMD between 2015 and 2023 were considered for inclusion. Data were retrospectively collected from patient files and surgical video material. From 2020 onwards, bypass procedures were exclusively performed using a digital three-dimensional exoscope as visualization device. Results were compared with a microsurgical bypass control group (2015–2019). The primary endpoint was defined as total duration of surgery, duration of completing the vascular anastomosis (ischemia time), bypass patency, number of stiches to perform the anastomosis, added stiches after leakage testing of the anastomosis and the Glasgow outcome scale (GOS) at last follow-up as secondary outcome parameter.

Results

A total of 16 consecutive moyamoya patients underwent 21 STA-MCA bypass procedures. Thereof, six patients were operated using a microscope and ten patients using an exoscope (ORBEYE® n = 1; AEOS® n = 9).

Total duration of surgery was comparable between devices (microscope: 313 min. ± 116 vs. exoscope: 279 min. ± 42; p = 0.647). Ischemia time also proved similar between groups (microscope: 43 min. ± 19 vs. exoscope: 41 min. ± 7; p = 0.701). No differences were noted in bypass patency rates. The number of stiches per anastomosis was similar between visualization devices (microscope: 17 ± 4 vs. exoscope: 17 ± 2; p = 0.887). In contrast, more additional stiches were needed in microscopic anastomoses after leakage testing the bypass (p = 0.035).

Conclusion

Taking into account the small sample size, end-to-side bypass surgery for moyamoya disease using a foot switch-operated 3D exoscope was not associated with more complications and led to comparable clinical and radiological results as microscopic bypass surgery.
Improved rates of postoperative ischemia, completeness of aneurysm occlusion and neurological deficits in elective clipping of anterior circulation aneurysms over the past 20 years – association with technical improvements
Authors: Siller Sebastian , Briegel Josef , Kunz Mathias , Liebig Thomas , Forbrig Robert , Tonn Joerg-Christian , Schichor Christian , Thorsteinsdottir Jun
Published: June 2024

Background/Purpose

Several periprocedural adjuncts for elective surgical aneurysm treatment have been introduced over the last 20 years to increase safety and efficacy. Besides the introduction of IONM in the late-1990s, ICG-videoangiography (ICG-VAG) since the mid-2000s and intraoperative CT-angiography/-perfusion (iCT-A/-P) since the mid-2010s are available. We aimed to clarify whether the introduction of ICG-VAG and iCT-A/-P resulted in our department in a stepwise improvement in the rate of radiologically detected postoperative ischemia, complete aneurysm occlusion and postoperative new deficits.

Methods

Patients undergoing microsurgical clip occlusion for unruptured anterior circulation aneurysms between 2000 and 2019 were included, with ICG-VAG since 2009 and iCT-A/-P (for selected cases) since 2016. Baseline characteristics and treatment-related morbidity/outcome focusing on differences between the three distinct cohorts (cohort-I: pre-ICG-VAG-era, cohort-II: ICG-VAG-era, cohort-III: ICG-VAG&iCT-A/-P-era) were analyzed.

Results

1391 patients were enrolled (n = 74 were excluded), 779 patients were interventionally treated, 538 patients were surgically clipped by a specialized vascular team (cohort-I n = 167, cohort-II n = 284, cohort-III n = 87). Aneurysm size was larger in cohort-I (8.9 vs. 7.5/6.8 mm; p < 0.01) without differences concerning age (mean:55years), gender distribution (m: f = 1:2.6) and aneurysm location (MCA:61%, ICA:18%, ACA/AcomA:21%). There was a stepwise improvement in the rate of radiologically detected postoperative ischemia (16.2vs.12.0vs.8.0%; p = 0.161), complete aneurysm occlusion (68.3vs.83.6vs.91.0%; p < 0.01) and postoperative new deficits (10.8vs.7.7vs.5.7%; p = 0.335) from cohort-I to -III. After a mean follow-up of 12months, a median modified Rankin scale of 0 was achieved in all cohorts.

Discussion

Associated with periprocedural technical achievements, surgical outcome in elective anterior circulation aneurysm surgery has improved in our service during the past 20 years.
Wideband polarization and spectral properties of 18 high Galactic latitude pulsars
Authors: Ahmad A. , Dai S. , Lenc E. , Filipović M. D. , Barnes L. , Hobbs G. , Balzan J. C. F. , Zhang L.
Published: June 2024

The broad-spectrum polarization and spectral characteristics of pulsars contain crucial information about the origin of their radio emission. These properties, together with pulsar flux density variations, can also be used to guide future surveys of radio pulsars and probe the Galactic interstellar medium. In this paper, we present studies of 18 pulsars at high Galactic latitudes using the Ultra-Wideband Low (UWL) receiver of the Parkes radio telescope. For these pulsars, we measured their wideband flux densities, spectral indices, and polarization fractions. We obtain seven new rotation measures (RMs) and refine the RMs of another ten pulsars. In this sample of pulsars, we observed significant variations in their flux densities, suggesting that previous shallow surveys were likely to miss a population of pulsars at high galactic latitude. In addition, we identified a previously reported isolated pulsar (PSR J1947−18) as a potential binary system.
Mercury in aquatic ecosystems of two indigenous communities in the Piedmont Ecuadorian Amazon: evidence from fish, water, and sediments
Authors: Escobar-Camacho Daniel , Rosero-López Daniela , Ruiz-Urigüen Melany , Barragán Karla S. , Carpintero-Salvador Natalia , Daza José R. , Aldous Allison , Benítez Silvia , Tear Timothy , Encalada Andrea C.
Published: June 2024

Mercury is a highly toxic element present in water, soil, air, and biota. Anthropogenic activities, such as burning fossil fuels, mining, and deforestation, contribute to the presence and mobilization of mercury between environmental compartments. Although current research on mercury pathways has advanced our understanding of the risks associated with human exposure, limited information exists for remote areas with high diversity of fauna, flora, and indigenous communities. This study aims to deepen our understanding of the presence of total mercury in water, sediments, and fish, within aquatic ecosystems of two indigenous territories: Gomataon (Waorani Nationality) and Sinangoé (Ai´Cofán Nationality) in the Ecuadorian Amazon. Our findings indicate that, for most fish (91.5%), sediment (100%) and water (95.3%) samples, mercury levels fall under international limits. For fish, no significant differences in mercury levels were detected between the two communities. However, eight species exceeded recommended global limits, and one surpassed the threshold according to Ecuadorian legislation. Piscivore and omnivore fish exhibited the highest concentrations of total mercury among trophic guilds. Only one water sample from each community’s territory exceeded these limits. Total mercury in sediments exhibited greater concentrations in Gomataon than Sinangoé. Greater levels of mercury in sediments were associated with the occurrence of total organic carbon. Considering that members of the communities consume the analyzed fish, an interdisciplinary approach, including isotopic analysis, methylmercury sampling in humans, and mercury monitoring over time, is imperative for a detailed risk assessment of mercury exposure in Amazonian communities.
Strontium leaching from municipal waste subjected to incineration
Authors: Alicja Kicińska , Grzegorz Caba
Published: June 2024

The aim of the study was to determine the content and leachability of Sr in ashes obtained through combusting municipal waste in household furnaces. The waste had been collected as a mixed stream and as separate fractions (i.e. furniture, sponges, waste paper, PCV packaging, plastic-coated paper cartons, imitation leather, rubber, textiles and polystyrene). Using single-step chemical extractions, (HCl + HNO3, H2O, 0.01 M CaCl2, 0.1 M CH3COOH), we determined the total content of Sr (TC) and proportions of the following fractions: water-leachable, phytoavailable and easily soluble and bound to carbonates. We also analyzed the effect of reducing pH in the extraction solutions on St leachability from the study material. The study showed that Sr concentration in ash generated from the combustion of conventional fuels, alternative fuels and municipal waste ranged from 114 to 1006 mg/kg. The largest amounts of Sr were found in ash generated from the combustion of alternative fuels (coal pellets 488–1006 mg/kg), conventional fuels (hard coal 430–670 mg/kg) and mixed waste (237–825 mg/kg). The most mobile fraction of Sr (water-leachable) comprised from 1.3% to nearly 91% TC; the phytoavailable fraction and the ion-exchange and carbonate-bound fraction comprised 3–92% TC and 9–72% TC, respectively. We also found that the greatest pH reductions do not always entail the greatest amounts of extracted Sr. A much more significant factor in this respect is the mineral and chemical composition of primary materials, which can buffer changes in pH. The Risk Assessment Code (RAC) values pointed to a varied environmental risk and the highest RAC values (> 70) were found for coal pellets, wood pellets, straw, rubber and plastic containers for mixed oils.
Does information about environmental considerations affect Chinese and UK consumers’ purchase intentions for traced foods? A path analysis
Authors: Jin Shan , Matsuoka Yasuhiro , Yue Meng , Jones Glyn , Frewer Lynn J.
Published: June 2024

Consumers are increasingly focused on making sustainable food choices, necessitating transparent and trusted systems for providing sustainability information. This can be implemented, for instance, through application of traceability systems that “carry” sustainability information about production and distribution. Currently, the literature on traceability mainly addresses consumer perceptions regarding the benefits of traceability concerning food safety and recalls. This research assessed consumers’ perceptions of the benefits of tracing food sustainability information in relation to purchase decisions. Data were collected using online surveys in China (n = 1515) and the UK (n = 1656). Path analysis indicated that higher perceived benefits of tracing sustainability information had small positive impacts on purchase intentions in both countries, with these being more pronounced for traced beef compared to milk and apples. The impacts of perceived environmental benefits on purchase intentions were partially mediated by perceptions of improved food safety and quality. This indirect influence was more prominent among UK respondents, implying potentially stronger safety and quality “halo” effects associated with environmental sustainability information compared to Chinese respondents. Stronger pro-environmental attitudes and greater perceived environmental threats linked to food production correlated with higher perceived environmental benefits of tracing food sustainability information and purchase intentions for traced foods in both countries. Positive correlations between pro-environmental attitudes and perceived environmental threats were only observed for UK respondents, suggesting that environmental issues related to food production might be more integrated into the general environmental attitudes of UK respondents. Implications for marketing strategies and policymaking are proposed considering diverse consumer responses to traced foods between the UK and China, food categories, and socio-demographic groups.
Univalence and Ontic Structuralism
Authors: Chen Lu
Published: June 2024

The persistent challenge of formulating ontic structuralism in a rigorous manner, which prioritizes structures over the entities they contain, calls for a transformation of traditional logical frameworks. I argue that Univalent Foundations (UF), which feature the axiom that all isomorphic structures are identical, offer such a foundation and are more attractive than other proposed structuralist frameworks. Furthermore, I delve into the significance in the case of the hole argument and, very briefly, the nature of symmetries.
A Mixed-Integer Formulation for the Simultaneous Input Selection and Outlier Filtering in Soft Sensor Training
Authors: Sildir Hasan , Boy Onur Can , Sarrafi Sahin
Published: June 2024

Soft sensors are used to calculate the real-time values of process variables which can be measured in the laboratory only or require expensive online measurement tools. A set of mathematical expressions are developed and trained from historical data to exploit the statistical knowledge between online and offline measurements to ensure a reliable prediction performance, for optimization and control purposes. This study focuses on the development of a mixed-integer optimization problem to perform input selection and outlier filtering simultaneously using rigorous algorithms during the training procedure, unlike traditional heuristic and sequential methods. Nonlinearities and nonconvexities in the optimization problem is further tailored for global optimality and computational advancements by reformulations and piecewise linearizations to address the complexity of the task with additional binary variables, representing the selection of a particular input or data. The proposed approach is implemented on actual data from two different industrial plants and compared to traditional approach.
The Effect of Naturalistic Developmental Behavioral Interventions and Aided AAC on the Language Development of Children on the Autism Spectrum with Minimal Speech: A Systematic Review and Meta-analysis
Authors: Pope Lauramarie , Light Janice , Laubscher Emily
Published: June 2024

Both naturalistic developmental behavioral interventions (NDBIs) and augmentative and alternative communication (AAC) have been shown to support the language development of children with a diagnosis of autism spectrum disorder and minimal speech. However, little research has addressed the impact of incorporating AAC systems within NDBIs. This systematic review was conducted to assess the relative impact of NDBI procedures with and without AAC on the language development of children on the autism spectrum with minimal speech. Relevant studies were located through systematic database searching, targeted review of relevant journals, and ancestral search of references from identified and associated papers. Relevant study characteristics were coded for all included studies, as well as determining certainty of evidence and calculating effect sizes for language variables. All procedures followed the systematic review guidelines set by the Cochrane Collaboration. A total of 29 relevant studies were included within this review, covering both single-case and group design research. Three studies were identified that directly compared NDBI and AAC interventions. NDBIs had a strong impact on language across study types (i.e., with and without AAC), though both aggregate and comparative effect sizes were notably larger when AAC was included within NDBI procedures, as compared to NDBIs without AAC. Results suggest that combining AAC with NDBI procedures may lead to better language outcomes than NDBIs alone for children on the autism spectrum with minimal speech.
Phased Array Ultrasonic Testing on Thick Glass Fiber Reinforced Thermoplastic Composite Pipe Implementing the Classical Time-Corrected Gain Method
Authors: Mohd Tahir Mohd Fadzil , Echtermeyer Andreas T.
Published: June 2024

Thermoplastic composite pipe is gaining popularity in the oil and gas and renewable energy industries as an alternative to traditional metal pipe mainly due to its capability of being spooled onto a reel and exceptional corrosion resistance properties. Despite its corrosion-proof nature, this material remains susceptible to various defects, such as delamination, fiber breakage, matrix degradation and deformation. This study employed the phased array ultrasonic testing technique with the implementation of the classical time-corrected gain method to compensate for the significant spatial signal attenuation beyond the first interface layer in the thick multi-layered thermoplastic composite pipe. Initially, the ultrasonic signals from the interface layers and back wall were detected with good signal-to-noise ratios. Subsequently, flat-bottom holes of varying depths, simulating one-sided delamination, were bored and the proposed method effectively identified ultrasonic signals from these holes, clearly distinguishing them from the background noise and interface layer signals. Finally, a defect deliberately fabricated within the composite laminate layers during the pipe manufacturing process was successfully identified. Subsequently, this fabricated defect was visualized in a three-dimensional representation using the X-ray computed tomography for a qualitative and quantitative comparison with the proposed ultrasonic method, showing a high level of agreement.
Peer Bullying Victimization Trajectories for Sexually and Gender Diverse Youth from Early Childhood to Late Adolescence
Authors: Huang Jingyi , Kaufman Tessa M. L. , Baams Laura , Branje Susan
Published: June 2024

Sexually and gender diverse (SGD) youth experience more peer bullying victimization than heterosexual, cisgender youth during adolescence, yet the emergence and persistence of these disparities remain underexplored. Also, it is unclear which factors are associated with these disparities across development, and how these disparities are linked to late adolescent health discrepancies. This study utilized the sample from the Millennium Cohort Study in Britain (N = 10,080; 51.3% assigned female at birth; Mage = 2.28, SDage = 0.46 at Wave 2), in which 23.74% of youth reported non-heterosexual attraction, 21.59% reported non-heterosexual identity, and 1.08% reported gender identity not in line with the sex assigned at birth. Using latent class growth modeling, four peer bullying victimization trajectories were identified, with early peak (7.2%), late childhood peak (6.3%), adolescence onset (12.8%), and low (73.6%) rates of victimization. SGD youth, compared to heterosexual and cisgender youth, were found to have increased odds of being in the victimization-involved classes, especially the adolescence onset class. The study further revealed that SGD youth reported more mental health and relational difficulties in childhood, which were linked to their heightened risk of longer-lasting victimization. Further, long-term victimization was found to partially account for the disparities in health and well-being for SGD youth in late adolescence. In conclusion, SGD youth were more likely to experience longer-lasting bullying victimization during childhood and adolescence, its related mental and relational vulnerabilities were already established in childhood, and such victimization disparities were further linked to their detrimental health and well-being in late adolescence. The design, hypotheses, and target analyses of the current study were preregistered on 21st April 2023 at https://osf.io/f2zxy.
Selective adsorption of actinides and rare earth elements from leach liquor using metal oxide-polymer nanocomposites
Authors: Özkan Bekir , Altaş Yüksel , İnan Süleyman
Published: June 2024

Utilization of actinides and rare earth elements is only possible by separating these metals with high purity. The materials used in separation must have thermal, chemical, mechanical, and radiation resistance. In the present study, separation experiments of actinides and rare earth elements (REEs) were carried out using purified H2SO4 leach liquor. Polyacrylonitrile (PAN)-supported Ti, Zr, and Si oxide nanocomposites were tested for the selective separation of Th, U, Gd, Eu, Sm, Pr, Nd, La, Ce, and Y. The effects of pH, contact time, adsorbent/solution ratio, and temperature on distribution coefficient (KD) and adsorption capacity (Q) were investigated. The synthesized nanocomposites tend to separate the elements into two main groups: Th, U, Gd, Eu and Sm, Pr, Nd, La, Ce. Notably, it was observed that the separation of Th and U from the remaining elements is promising at 15 °C. Additionally, the separation can be further improved depending on the differences in desorption efficiency.
LRRK2 Kinase Inhibitor PF-06447475 Protects Drosophila melanogaster against Paraquat-Induced Locomotor Impairment, Life Span Reduction, and Oxidative Stress
Authors: Quintero-Espinosa Diana A. , Jimenez-Del-Rio Marlene , Velez-Pardo Carlos
Published: June 2024

Parkinson’s disease (PD) is a complex multifactorial progressive neurodegenerative disease characterized by locomotor alteration due to the specific deterioration of dopaminergic (DAergic) neurons in the substantia nigra pars compacta (SNpc). Mounting evidence shows that human LRRK2 (hLRRK2) kinase activity is involved in oxidative stress (OS)-induced neurodegeneration, suggesting LRRK2 inhibition as a potential therapeutic target. We report that the hLRRK2 inhibitor PF-06447475 (PF-475) prolonged lifespan, increased locomotor activity, maintained DAergic neuronal integrity, and reduced lipid peroxidation (LPO) in female Drosophila melanogaster flies chronically exposed to paraquat (PQ), a redox cycling compound, compared to flies treated with vehicle only. Since LRRK2 is an evolutionary conserved kinase, the present findings reinforce the idea that either reduction or inhibition of the LRRK2 kinase might decrease OS and locomotor alterations associated with PD. Our observations highlight the importance of uncovering the function of the hLRRK2 orthologue dLrrk2 in D. melanogaster as an excellent model for pharmacological screenings.
Environmental factors in tsunami evacuation simulation: topography, traffic jam, human behaviour
Authors: Fathianpour Azin , Evans Barry , Babaeian Jelodar Mostafa , Wilkinson Suzanne
Published: June 2024

The risk a tsunami, a high-rise wave, poses to coastal cities has been highlighted in recent years. Emergency management agencies have become more prepared, and new policies and strategies are in place to strengthen the city's resiliency to such events. Evacuation is a highly effective response to tsunamis, and recent models and simulations have provided valuable insights into mass evacuation scenarios. However, the accuracy of these simulations can be improved by accounting for additional environmental factors that affect the impact of a tsunami event. To this end, this study has been conducted to enhance an evacuation simulation model by considering topography that impacts traffic mobility and speed, traffic congestion, and human behaviour. The updated model was employed to evaluate the effectiveness of Napier City's current evacuation plan, as it can realistically simulate both pedestrian and vehicular traffic movements simultaneously. The simulation demonstrated in this paper was based on a scenario involving an 8.4 Mw earthquake from the Hikurangi subduction interface, which would trigger a tsunami risk in the area. Based on this event, the final evacuation time (time between after the shake is felt and the arrival of the tsunami wave at the shoreline of Napier City) is considered to be 50 min. The results of the MSEM model are presented within two categories, (1) survival rate and (2) safe zone capacity. The evacuation simulation model used to examine the environmental factors in this study is the Micro-Simulation Evacuation Model (MSEM), an agent-based model capable of considering both pedestrian and vehicular interactions. The results showed that the steep pathway to the safe zone would markedly decrease the moving speed and reduce the survival rate, highlighting the need to have supporting vertical evacuation to reduce the number of evacuees heading to steep routes. Additionally, the modelling and assessment of mass evacuation by vehicles has highlighted regions of severe congestion due to insufficient network capacity. Through highlighting such regions, the model aid policy makers with a more targeted approach to infrastructure investment to improve flows of traffic in mass evacuation scenarios and increase survival rates.
Image jurilinguistique des animaux dans les codes civils français et polonais
Authors: Pieprzyca Piotr
Published: June 2024

L’article décrit le statut jurilinguistique des animaux qui découle des codes civils polonais et français. Le but est de vérifier si la législation de ces deux pays suit les changements sociaux liés à l’attitude des humains envers les animaux. L’étude s’appuie sur la méthodologie de l’image linguistique du monde — l’auteur essaie de reconstruire la définition d’animal à partir des emplois de ce nom dans les deux actes normatifs. L’analyse sémantique des dispositions juridiques démontre que, dans les deux codes, les animaux fonctionnent tout d’abord comme objet de différents droits et obligations, comme une partie du patrimoine, une chose qui dépend entièrement de l’homme et lui appartient. L’animal n’est pas considéré comme une catégorie distincte, mais il est soumis au régime des biens. En effet, les droits civils polonais et français tendent à réifier les animaux, en leur refusant un statut juridique différent de celui des choses et en restant indifférent aux changements sociaux contemporains.
Implementation and testing of a KNS topology in an InfiniBand cluster
Authors: Gomez-Lopez Gabriel , Escudero-Sahuquillo Jesus , Garcia Pedro J. , Quiles Francisco J.
Published: June 2024

The InfiniBand (IB) interconnection technology is widely used in the networks of modern supercomputers and data centers. Among other advantages, the IB-based network devices allow for building multiple network topologies, and the IB control software (subnet manager) supports several routing engines suitable for the most common topologies. However, the implementation of some novel topologies in IB-based networks may be difficult if suitable routing algorithms are not supported, or if the IB switch or NIC architectures are not directly applicable for that topology. This work describes the implementation of the network topology known as KNS in a real HPC cluster using an IB network. As far as we know, this is the first implementation of this topology in an IB-based system. In more detail, we have implemented the KNS routing algorithm in the OpenSM software distribution of the subnet manager, and we have adapted the available IB-based switches to the particular structure of this topology. We have evaluated the correctness of our implementation through experiments in the real cluster, using well-known benchmarks. The obtained results, which match the expected performance for the KNS topology, show that this topology can be implemented in IB-based clusters as an alternative to other interconnection patterns.
Monolayer graphene/GaN heterostructure photodetector with UV-IR dual-wavelength photoresponses
Authors: Xue Junjun , Tong Jiaming , Gao Zhujun , Chen Zhouyu , Fang Haoyu , Wang Saisai , Zhi Ting , Wang Jin
Published: June 2024

An ultraviolet-infrared (UV-IR) dual-wavelength photodetector (PD) based on a monolayer (ML) graphene/GaN heterostructure has been successfully fabricated in this work. The ML graphene was synthesized by chemical vapor deposition (CVD) and subsequently transferred onto GaN substrate using polymethylmethacrylate (PMMA). The morphological and optical properties of the as-prepared graphene and GaN were presented. The fabricated PD based on the graphene/GaN heterostructure exhibited excellent rectify behavior by measuring the current–voltage (I–V) characteristics under dark conditions, and the spectral response demonstrated that the device revealed an UV-IR dual-wavelength photoresponse. In addition, the energy band structure and absorption properties of the ML graphene/GaN heterostructure were theoretically investigated based on density functional theory (DFT) to explore the underlying physical mechanism of the two-dimensional (2D)/three-dimensional (3D) hybrid heterostructure PD device. This work paves the way for the development of innovative GaN-based dual-wavelength optoelectronic devices, offering a potential strategy for future applications in the field of advanced photodetection technology.

Graphical Abstract
Reliable feature selection for adversarially robust cyber-attack detection
Authors: Vitorino João , Silva Miguel , Maia Eva , Praça Isabel
Published: June 2024

The growing cybersecurity threats make it essential to use high-quality data to train machine learning (ML) models for network traffic analysis, without noisy or missing data. By selecting the most relevant features for cyber-attack detection, it is possible to improve both the robustness and computational efficiency of the models used in a cybersecurity system. This work presents a feature selection and consensus process that combines multiple methods and applies them to several network datasets. Two different feature sets were selected and were used to train multiple ML models with regular and adversarial training. Finally, an adversarial evasion robustness benchmark was performed to analyze the reliability of the different feature sets and their impact on the susceptibility of the models to adversarial examples. By using an improved dataset with more data diversity, selecting the best time-related features and a more specific feature set, and performing adversarial training, the ML models were able to achieve a better adversarially robust generalization. The robustness of the models was significantly improved without their generalization to regular traffic flows being affected, without increases of false alarms, and without requiring too many computational resources, which enables a reliable detection of suspicious activity and perturbed traffic flows in enterprise computer networks.
Market research ethics: New practices but no new ideas
Authors: Cluley Robert , Green William
Published: June 2024

The ethical issues involved with marketing research are receiving increased public scrutiny, prompting calls for marketing scholars and research practitioners to revisit the issue. To support researchers and practitioners, this paper provides a systematic scoping review of research on the ethics of market research developed across a range of literatures (N = 134). It demonstrates that, over 70 years, marketing scholars have explored the ethics of market research from normative, descriptive, theoretical and technical approaches. But, while marketing scholars were once at the forefront of theorising the ethics of marketing research, the field is increasingly fragmented and specialized. The result is that, following a series of theoretical innovations in the 1980s, progress has all but ended. We ask why marketing scholars have turned away from the ethics of marketing research given the importance of the topic in practice.
Stripping the Swiss discount curve using kernel ridge regression
Authors: Camenzind Nicolas , Filipović Damir
Published: June 2024

We analyze and implement the kernel ridge regression (KR) method developed in Filipovic et al. (Stripping the discount curve—a robust machine learning approach. Swiss Finance Institute Research Paper No. 22–24. SSRN. https://ssrn.com/abstract=4058150, 2022) to estimate the risk-free discount curve for the Swiss government bond market. We show that the insurance industry standard Smith–Wilson method is a special case of the KR framework. We recapitulate the curve estimation methods of the Swiss Solvency Test (SST) and the Swiss National Bank (SNB). In an extensive empirical study covering the years 2010–2022 we compare the KR curves with the SST and SNB curves. The KR method proves to be robust, flexible, transparent, reproducible and easy to implement, and outperforms the benchmarks in- and out-of-sample. We show the limitations of all methods for extrapolating the yield curve and propose possible solutions for the extrapolation problem. We conclude that the KR method is the preferred method for estimating the discount curve.
Dual-mode optical projection mapping system: integration of laser speckle contrast and subcutaneous vein imaging
Authors: Yeum Insun , Ko Donghwan , Lee Gyujin , Seok Hoik , Jung Byungjo
Published: June 2024

Dual-mode optical imaging can simultaneously provide morphological and functional information. Furthermore, it can be integrated with projection mapping method to directly observe the images in the region of interest. This study was aimed to develop a dual-mode optical projection mapping system (DOPMS) that obtains laser speckle contrast image (LSCI) and subcutaneous vein image (SVI) and projects onto the region of interest, minimizing the spatial misalignment between the regions captured by the camera and projected by a projector. In in vitro and in vivo studies, LSCI and SVI were obtained and projected under single-mode illumination, where either the laser or light-emitting diode (LED) was activated, and under dual-mode illumination, where the laser and LED were activated simultaneously. In addition, fusion image (FI) of LSCI and SVI was implemented to selectively observe blood perfusion in the vein. DOPMS successfully obtained LSCI, SVI, and FI and projected them onto the identical region of interest, minimizing spatial misalignment. Single-mode illumination resulted in relatively clearer and noise-free images. Dual-mode illumination introduced speckle noise to SVI and FI but enabled real-time imaging by simultaneously employing LSCI, SVI, and FI. FI may be more effective for quasi-static evaluations before and after treatment under single-mode illumination and for real-time evaluation during treatment under dual-mode illumination owing to its faster image processing, albeit with a potential tradeoff in image quality.
Long-term dynamics of fractional stochastic delay reaction–diffusion equations on unbounded domains
Authors: Chen Zhang , Wang Bixiang
Published: June 2024

In this paper, we investigate the long-term dynamics of fractional stochastic delay reaction-diffusion equations on unbounded domains with a polynomial drift term of arbitrary order driven by nonlinear noise. We first define a mean random dynamical system in a Hilbert space for the solutions of the equation and prove the existence and uniqueness of weak pullback mean random attractors. We then establish the existence and regularity of invariant measures of the system under further conditions on the nonlinear delay and diffusion terms. We also prove the tightness of the set of all invariant measures of the equation when the time delay varies in a bounded interval. We finally show that every limit of a sequence of invariant measures of the delay equation must be an invariant measure of the limiting system as delay approaches zero. The uniform tail-estimates and the Ascoli–Arzelà theorem are used to derive the tightness of distribution laws of solutions in order to overcome the non-compactness of Sobolev embeddings on unbounded domains.
Diagnostic Uncertainty in Childhood Motor Speech Disorders: A Review of Recent Tools and Approaches
Authors: McCabe Patricia , Korkalainen Johanna , Thomas Donna
Published: June 2024

Purpose

Speech-language pathologists report difficulty in the accurate differential diagnosis of complex speech presentations. This paper explores possible reasons for diagnostic uncertainty and reviews new tools and recent approaches to address this concern.

Recent Findings

Children with motor speech disorders often have complex mixed presentations, comprising interacting motor-speech, cognitive-linguistic, and psychosocial factors, which may lead to clinicians having difficulty selecting appropriate interventions. Clinicians are frequently uncertain about differential diagnosis and lack time to complete comprehensive analysis required to understand the children’s complex speech profiles. This review examines papers that deal with this issue through identification of multiple speech disorders [5], consideration of impaired speech processes rather than discrete diagnoses [1], and the impact of new genetic understandings [20]. These insights will help to reduce the impact of this complexity on clinical decision-making.

New tools are emerging including clinical diagnostic pathways, genetic analysis, and theoretical modelling which may resolve many of the identified issues and improve clinical decision-making for children with complex motor speech disorders.
Barriers and Facilitators to Breast and Cervical Cancer Screenings for Hispanic Women in a Rural State
Authors: Moyce Sally , Claudio David , Aghbashian Elizabeth , Keenan Kelly , Comey Danika Lee , Chavez-Reyes Genesis
Published: June 2024

Introduction

The Centers for Disease Control and Prevention (CDC) and the Division of Cancer Prevention of Control administer the National Breast and Cervical Cancer Early Detection Program (NBCCEDP), designed to increase early detection of cancers among low-income uninsured and underinsured women. However, rates of cancer diagnosis and survivorship differ among women of different ethnicities. We investigated two questions: 1) what are the potential barriers and facilitators for women to complete recommended breast and cervical cancer screenings, and 2) are the barriers and facilitators different for Hispanic women when compared to non-Hispanic White women?

Methods

We used a community-based participatory research approach and mixed methods: qualitative interviews with women enrolled in the program and a systematic process improvement approach to identify root causes of completing or not completing screenings. We conducted semi-structured interviews in English (n = 11) and Spanish (n = 9) and analyzed responses using fishbone diagrams.

Results

We recruited 20 participants in four categories: (a) non-Hispanic White women who completed screenings (n = 9), (b) non-Hispanic White women who did not complete screenings (n = 2), (c) Hispanic women who completed screenings (n = 7), and (d) Hispanic women who did not complete screenings (n = 2). Among all women, facilitators included assistance from program staff with appointments and reminders. Hispanic women reported barriers including language difficulties and confusion about the program. Non-Hispanic White women identified barriers as confusion about the role of insurance.

Conclusions

We found that there are differences in barriers and facilitators for non-Hispanic White women and Hispanic women due to language, the role of insurance, and the level of trust in the program. Reasons for not completing screenings for Hispanic women were structural and systemic in nature; reasons for non-Hispanic White women were based on personal choices.
Evaluating the effectiveness of rhizobacteria producing 1-aminocyclopropane-1-carboxylic acid deaminase in inhibiting tumor formation by Agrobacterium tumefaciens
Authors: Amer Iman Amer Abdelhafiz , Mikhail Maurice Sabry , Youssef Maryan Makram , Abd El-Rahman Ashraf Fathy
Published: June 2024

Crown gall is one of the most dangerous bacterial diseases affecting the production of fruit tree nurseries in Egypt and many countries of the world. In the present study, ten isolates of 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase-producing rhizobacteria were isolated from the rhizosphere of apricot (Prunus armeniaca L.) and plum (Prunus domestica L.) trees to evaluate their ability to decrease tumor formation by Agrobacterium tumefaciens (synonym Rhizobium radiobacter). The ten isolates were identified as Pseudomonas strains based on 16S rRNA gene sequence analysis and deduced protein sequences obtained from a partial ACC deaminase structural gene (acdS) sequence. Co-inoculating castor bean (Ricinus communis L.) and kalanchoe (Kalanchoe sp.) plants with A. tumefaciens and four ACC deaminase-producing Pseudomonas isolates decreased tumor formation. However, six ACC deaminase-producing Pseudomonas isolates produced varying results in these two plant species. The results showed that isolates of Pseudomonas vancouverensis reduced tumor formation when co-inoculated with A. tumefaciens in castor bean and kalanchoe plants. However, the isolate P. putida inhibited tumor formation in castor bean plants but did not achieve the same effect in kalanchoe plants. Additionally, isolates of P. frederiksbergensis and P. kilonensis decreased tumor formation in kalanchoe plants while increasing tumor formation in castor bean plants. The results showed that ACC deaminase-producing P. vancouverensis is a promising biocontrol agent against A. tumefaciens.
Entrepreneurship as career choice of Russian students: the role of university education, cultural traditions, and gender stereotypes
Authors: Tabachnikova Olga , Vinokurova Natalia
Published: June 2024

In this paper, based on our own recent sociological survey of more than 800 students of 15 Russian universities, we explore the views of Russian students regarding entrepreneurship as their possible choice of a future career. We are interested above all in the role of university education in shaping these views. However, in order to scrutinize this role to full extent, we place our study in the broader framework of national cultural traditions which constitute an integral contributing factor and underlying influence not only in educational, but also in the general existential realm. In this context, we argue that a substantial impact on the students’ future career choice is made by existing gender differences based on the stereotypes of the ‘typically male’ and ‘female’ employment fields. Our study demonstrates, in particular, that Russian students display—notably, just as the older generation of educated Russians too—a noticeable conservatism in their career choices (including entrepreneurial aspirations), by adhering to the traditional cultural values and gender perceptions. We also provide a nuanced analysis of the motivations and expectations associated with choosing an entrepreneurial career by our respondents. Our method of collecting information is chosen to be questionnaire-based—as most effective for descriptive research—which is then complemented by further qualitative analytics intended to reveal hidden causal connections. Our approach is interdisciplinary, as it combines sociological research methods with socio-economic and culturological analysis.
Organizational culture at Slovak universities: a mediation analysis of the associated factors
Authors: Jankelová Nadežda
Published: June 2024

The purpose of the paper is to examine the interrelationship between the leadership style of direct superiors and organizational culture and to find out whether this connection is mediated by organizational trust in the environment of Slovak universities. The tool for data collection was a questionnaire survey among heads of departments from selected public universities in Slovakia. The research model was tested using the PLS-SEM method. The hypothesis about the mediating role of organizational trust in the relationship between the superior’s leadership style and organizational culture was confirmed. The total effect in the studied model was much higher than the direct effect, which points to the importance of organizational trust in the context of building a healthy organizational culture. The implications of the research are aimed at the practice of university management.
On the Concrete Security of LWE With Small Secret
Authors: Chua Lynn , Chen Hao , Song Yongsoo , Lauter Kristin
Published: June 2024

Lattice-based cryptography is currently under consideration for standardization in the ongoing NIST PQC Post-Quantum Cryptography competition, and is used as the basis for Homomorphic Encryption schemes world-wide. Both applications rely specifically on the hardness of the Learning With Errors (LWE) problem. Most Homomorphic Encryption deployments use small secrets as an optimization, so it is important to understand the concrete security of LWE when sampling the secret from a non-uniform, small distribution. Although there are numerous heuristics used to estimate the running time and quality of lattice reduction algorithms such as BKZ2.0, more work is needed to validate and test these heuristics in practice to provide concrete security parameter recommendations, especially in the case of small secret. In this work, we introduce a new approach which uses concrete attacks on the LWE problem as a way to study the performance and quality of BKZ2.0 directly. We find that the security levels for certain values of the modulus q and dimension n are smaller than predicted by the online Lattice Estimator, due to the fact that the attacks succeed on these uSVP lattices for blocksizes which are smaller than expected based on current estimates. We also find that many instances of the TU Darmstadt LWE challenges can be solved significantly faster when the secret is chosen from the binary or ternary distributions.
Dynamical chiral Nernst effect in twisted Van der Waals few layers
Authors: Li Juncheng , Zhai Dawei , Xiao Cong , Yao Wang
Published: June 2024

The Nernst effect is a fundamental thermoelectric conversion phenomenon that was deemed to be possible only in systems with magnetic field or magnetization. In this work, we propose a novel dynamical chiral Nernst effect that can appear in two-dimensional van der Waals materials with chiral structural symmetry in the absence of any magnetic degree of freedom. This unconventional effect is triggered by time variation of an out-of-plane electric field, and has an intrinsic quantum geometric origin linked to not only the intralayer center-of-mass motion but also the interlayer coherence of electronic states. We demonstrate the effect in twisted homobilayer and homotrilayer transition metal dichalcogenides, where the strong twisted interlayer coupling leads to sizable intrinsic Nernst conductivities well within the experimental capacity. This work suggests a new route for electric control of thermoelectric conversion.
Managing Religion and Religious Changes in Iran
Authors: Adeliyan Tous Sajjad , Richardson James T.
Published: June 2024

This Element offers a theoretically informed examination of the manner in which religion, especially alternative and emergent religious and spiritual movements, is managed by law and legal mechanisms in the authoritarian theocracy of Iran. It highlights how these phenomena have been affected by the intersection of law, politics, and Shiʿi theology in recent Iranian history. The growing interest of Iranian citizens in new religious movements and spiritual currents, fostered by the cultural diffusion of Western writings and ideas, is described. The development of religious diversity in Iran and a corresponding loss of commitment toward some Islamic doctrines and practices are of considerable concern to both the Iranian religious and political establishments. This has led to social control efforts over any religious spiritual movement differing from the regime's view of Islam. Those efforts, supported in large part by Western anticult ideas, culminated in the passage of a piece of stringent of legislation in 2021. The Element closes with applications of theorizing from the sociology of law and of religion.