bluuebunny/crossref_metadata_2025_split huggingface dataset:
Care and academic work in a pandemic lockdown: a study of women academics in South Africa
Authors: Bam Armand , Walters Cyrill , Jansen Jonathan 
Published: August 2023

AbstractThe lack of women in leadership across higher education has been problematised in the literature. Often, contemporary discourses promote “fixing the women” as a solution. Consequently, interventions aimed at helping women break through “the glass ceiling” abound. We argue that the gendered power relations at play in universities cause entrenched inequalities to remain in place, regardless of measures implemented for and by women. This article reports on a study of the impact of COVID-19 on 2029 women academics in South Africa. We examine how academic women’s roles as nurturers at home are extended to their roles as carers at work, and how these impact their prospects for career progression. The article further shows how expectations placed on women academics as carers contribute to gendered dimensions of inequality that are detrimental to both their own well-being and careers. Finally, we call on higher education institutions to “fix themselves”, rather than “the women”, if they want to dismantle gender inequalities.
Clinical pregnancy in Turner syndrome following re-implantation of cryopreserved ovarian cortex
Authors: Dunlop CE , Jack SA , Telfer EE , Zahra S. , Anderson RA 
Published: August 2023

AbstractTurner syndrome (TS) leads to a characteristic phenotype, including premature ovarian insufficiency and infertility. Ovarian tissue cryopreservation (OTC) is becoming an established fertility preservation strategy for both pre- and post-pubertal females and may offer the chance of having a biological family to selected patients with TS. To date, women with TS have had ovarian tissue cryopreserved but there are few reports of autologous re-implantation and none of pregnancy. We herein report, to our knowledge, the first clinical pregnancy in a patient with TS, conceived naturally following re-implantation of cryopreserved ovarian tissue which had been removed soon after spontaneous puberty. This provides proof of concept for OTC as a means of fertility preservation in TS.
Conjuration and Conspiracy. The Controversy over the German Covid Policy as a Mediumistic Trial, or: The Medium is the Mess
Authors: Voss Ehler 
Published: August 2023

AbstractBased on anthropological fieldwork among protesters against the Covid policy in Germany, this paper elaborates the symmetry of accusations made against each other by proponents and opponents of the state-imposed protection measures against the backdrop of an asymmetrical distribution of power. The social dynamics that emerged during the pandemic are often understood as the result of a knowledge controversy that most participants thus categorize as a media problem. A key finding of my research on protests against the German Covid policy is that, as in my research on the controversy over mediumism, the controversy is about the agency of human and nonhuman actors and carried out to a great extent based on the same values on both sides, which at the same time accuse each other of not conforming to these values. The protesters are part of a heterogeneous minority that in large parts embodies the values of the majority and, in a way, exceeds them, i.e., a minority that is hypercritical and has extreme expectations about the values of the majority society – in this case: of solidarity, science, transparency, rationality, and coherence. From its marginal position, the minority develops a canny eye for the unfulfilled promises of the majority: its contradictions and conscious or unconscious double standards are perceived as bigotry against the backdrop of the aspiration to absence of contradiction. Therefore, this minority suspects that the motivations and goals behind the measures taken are other than just the protection of health, while the majority in turn see the minority’s commitment to society and democracy as (self-)deception and also suspect hidden motives and actors behind it. This mutual suspicion leads to a hysterical state of doubt and distrust, which is rooted in the nature of mediality.
“I Need to Get My Culture Back”: Youth and Provider Perspectives on Integrating Culturally Based Approaches into Sexual and Reproductive Health Programs for Native Hawaiian and Pacific Islander Youth Experiencing Homelessness
Authors: Kuo Charlene , Jasczynski Michelle , Yoo Jee Hun , Robinson Jennifer L. , Reynolds Katelyn , Anoruo Lisa , Bae Kayla , Ka‘opua Lana Sue , Chavez Rebecca , Tellei Jacqueline , Aparicio Elizabeth M. 
Published: August 2023

AbstractThere is growing interest in decolonizing sexual and reproductive health (SRH) and embedding cultural practices into social and medical services in Hawai‘i. Wahine (“woman”) Talk is a multilevel, comprehensive SRH program for female youth experiencing homelessness (YEH) led by community health, social work, and medical providers. This study examines youth and program provider perspectives of culturally based approaches that may strengthen SRH programs. The study team conducted three focus groups and ten in-depth interviews with participating youth and program providers after the program’s conclusion. Youth participants were aged 14 to 22 years (M = 18.1) and of Native Hawaiian or Pacific Islander ancestry. Interview transcripts were analyzed using structured thematic analysis. The youth described feeling estranged from their ancestral cultures and suggested incorporating multiple cultural practices to enhance their connection to community, body, and land into SRH programming for YEH. They identified several ʻāina (“land”)–based approaches, hands-on learning, hula, and language as possible practices to weave into the program. While youth felt estranged from their ancestral cultures, they discussed Native Hawaiian and Pacific Islander health perspectives where ʻāina and relationships are considered life-sustaining. Youth and program staff stressed incorporating culture respectfully, caring for the whole person, and providing trauma-informed care. Future policy, practice, and research should consider protecting and integrating Native Hawaiian conceptions of health into SRH policy and practice and include youths’ cultural identities in SRH intervention development.
“All that glitters is not gold!”: The (Unexplored) Determinants of Equity Crowdfunding
Authors: Civardi Camilla , Moro Andrea , Winborg Joakim 
Published: August 2023

AbstractDrawing from the rich literature in behavioural finance and extensive analysis of forum data from a UK equity crowdfunding platform, we present a comprehensive framework that delineates the investment decision-making process of equity crowdfunders. Our framework captures the utilitarian, emotional, and expressive investment motives that drive crowdfunders, their behaviours and actions during and after the campaign, as well as the challenges they encounter in fulfilling their investment goals. Our work highlights the crucial need to explore the extent to which entrepreneurs and crowdfunding platforms cater to the diverse investment motives and expectations of the crowd. We offer practical insights to entrepreneurs and platforms on how they can better align their strategies with the expectations and needs of equity crowdfunders.
High Surface Area Assemblies of Gold Nanoparticles on Hydrophilic Carbon Fiber Paper with Ionomer Overlayers for Aqueous CO2 Reduction Electrocatalysis to Clean Syngas
Authors: Forsythe Ryland C. , Cox Connor P. , Wilsey Madeleine K. , Yu Wanqing , Müller Astrid M. 
Published: August 2023

AbstractWe report a universal approach for the utilization of nanoparticles on inexpensive, high surface area carbon substrates in aqueous applications. We immobilized gold nanoparticles from aqueous colloid on hydrophilic carbon fiber paper and assessed this electrode assembly in aqueous carbon dioxide reduction electrocatalysis. Uniform distributions of gold nanoparticles on carbon fibers and stable electrocatalytic current generation indicated that immobilization of gold nanoparticles on hydrophilic carbon fiber paper was successful. Surface analysis before and after electroreduction revealed that the detachment of citrate capping ligands enhanced the amount of exposed surface gold and concomitantly increased the CO-to-H2 ratio in subsequent CO2 reduction electrocatalysis. Systematic variations of ionomer overlayers controlled the ratio of produced CO and H2 towards useful syngas compositions and revealed mechanistic insights into catalyst microenvironments, to enhance CO selectivity. Our results demonstrate that hydrophilic carbon fiber paper is an excellent high surface area electrode substrate for the utilization of nanoparticulate electrocatalysts in aqueous electrolyte.
Impacts of florfenicol on immunity, antioxidant activity, and histopathology of Oreochromis niloticus: a potential protective effect of dietary spirulina platensis
Authors: Abu-Zahra Nagwa I.S. , Elseify Mohamed M. , Atia Ayman A. , Al-sokary Eman T. 
Published: August 2023

AbstractThe misuse of antibiotics enhances the development of resistant microorganisms and decreases the efficacy of treatments. Florfenicol (FF) is one of the antibiotics approved for use in aquaculture in Egypt. Because of its extensive usage, potential negative impacts on aquatic creatures are a major concern. This motivates us to search for an appropriate neoadjuvant to work synergistically with FF and reduce adverse effects. Results from this study will contribute towards improving the understanding of the impacts of FF on Oreochromis niloticus and the possible amelioratory effects of Spirulina platensis algae (SP). O. niloticus (n = 240; 40 ± 2.5 g) were fed on two diets supplemented with or without SP for 4 weeks, then divided into four treatments each in three replicates (n = 60/treatment). G1; was fed a control diet, and the other groups were fed diets supplemented with FF (10 mg /kg of BW, G2), SP (2 g/kg of diet, G3), or FF + SP (G4) for 10 days. Among the four groups, the SP group (G3) had the best immunostimulatory effects as observed by a significant (p < 0.05) elevation in phagocytic activity, phagocytic index, IL6, and TNF-α. The treatment with FF had significantly impacted hepatic and renal tissues, as the values of liver enzymes and creatinine demonstrated tissue deterioration and also resulted in oxidative stress, which was expressed by an increase of GPx, CAT, and SOD in (G2). Additionally, the combined FF + SP improved the hematological parameters and decreased the oxidative damage induced by FF (G4). Thus, it was clear that FF has harmful effects on O. niloticus and that SP can modulate such impacts. These data recommend the use of SP as an effective immunostimulant and a probable adjuvant to FF in O. niloticus diets to attain maximum disease resistance.
Design and Implementation of 3.2-GHz Co-Planar Miniaturized Antenna for S-Band Communication and Wireless Applications
Authors: Abdel Halim Ashraf S. , Mostafa Mohanad , Hamdy Omnia 
Published: August 2023

AbstractThe use of miniaturized antennas in wireless communications is very common. In the current paper, a miniature coplanar-waveguide fed-rectangular patch antenna with semicircular ground is presented. The antenna performance was studied at two different configurations; straight and bent. Cross lines were added to ensure the obtained frequency band. Different parameters were evaluated including return-loss, radiation-pattern, gain and band-width. These parameters were analyzed numerically after twisting along both X and Y axis. Additionally, a prototype of the straight structured antenna is fabricated, and compared with the simulation results. The numerical results show high return loss (− 33 dB) at the straight structure, while the measured return loss decreased to − 28 dB. The bandwidth was 0.75-GHz in case of the straight structure and the measured bandwidth 0.18 GHz. The obtained gain at the resonance frequency is − 13 dB. Moreover, the proposed antenna resonates at frequency 3.22-GHz making it suitable for wireless communications, WIMAX and microwave S-band applications.
Bibliometric analysis of the global scientific production on machine learning applied to different cancer types
Authors: Ruiz-Fresneda Miguel Angel , Gijón Alfonso , Morales-Álvarez Pablo 
Published: August 2023

AbstractCancer disease is one of the main causes of death in the world, with million annual cases in the last decades. The need to find a cure has stimulated the search for efficient treatments and diagnostic procedures. One of the most promising tools that has emerged against cancer in recent years is machine learning (ML), which has raised a huge number of scientific papers published in a relatively short period of time. The present study analyzes global scientific production on ML applied to the most relevant cancer types through various bibliometric indicators. We find that over 30,000 studies have been published so far and observe that cancers with the highest number of published studies using ML (breast, lung, and colon cancer) are those with the highest incidence, being the USA and China the main scientific producers on the subject. Interestingly, the role of China and Japan in stomach cancer is correlated with the number of cases of this cancer type in Asia (78% of the worldwide cases). Knowing the countries and institutions that most study each area can be of great help for improving international collaborations between research groups and countries. Our analysis shows that medical and computer science journals lead the number of publications on the subject and could be useful for researchers in the field. Finally, keyword co-occurrence analysis suggests that ML-cancer research trends are focused not only on the use of ML as an effective diagnostic method, but also for the improvement of radiotherapy- and chemotherapy-based treatments.
Solar photo-Fenton optimization at neutral pH for microcontaminant removal at pilot plant scale
Authors: Hinojosa Mercedes , Oller Isabel , Quiroga José María , Malato Sixto , Egea-Corbacho Agata , Acevedo-Merino Asunción 
Published: August 2023

AbstractThe increasing occurrence of micropollutants in natural water bodies has medium to long-term effects on both aquatic life and human health. The aim of this study is to optimize the degradation of two pharmaceutical pollutants of emerging concern: amoxicillin and acetaminophen in aqueous solution at laboratory and pilot scale, by solar photo-Fenton process carried out at neutral pH using ethylenediamine-N,N′-disuccinic acid (EDDS) as a complexing agent to maintain iron in solution. The initial concentration of each compound was set at 1 mg/L dissolved in a simulated effluent from a municipal wastewater treatment plant (MWTP). A factorial experimental design and its surface response analysis were used to optimize the operating parameters to achieve the highest initial degradation rate of each target. The evolution of the degradation process was measured by ultra-performance liquid chromatography (UPLC/UV), obtaining elimination rates above 90% for both contaminants. Statistical study showed the optimum concentrations of Fe(III) at 3 mg/L at an Fe-EDDS ratio of 1:2 and 2.75 mg/L H2O2 for the almost complete removal of the target compounds by solar photo-Fenton process. Validation of the experimental design was successfully carried out with actual MWTP effluent spiked with 100 μg/L of amoxicillin and acetaminophen, each at pilot plant scale.
Signaling in the Market for Security Tokens
Authors: Kreppmeier Julia , Laschinger Ralf 
Published: August 2023

AbstractSecurity token offerings (STOs) are a new means for ventures to raise funding, where digital tokens are issued as regulated investment products on the blockchain. We study market outcomes in the primary and secondary markets for security tokens and examine the associated determinants in the context of signaling theory. We analyze success determinants of 138 STOs and find that a pre-sale and the announcement of token transferability are positively related to the funding success and serve as positive quality signals for investors to overcome information asymmetries. We examine 108 security tokens traded on centralized and decentralized exchanges related to the rapidly evolving area of decentralized finance. There is hardly any underpricing in the market, and it is positively associated with the crypto market sentiment as an external signal. When traded on the secondary market, security tokens generate both extremely positive and negative returns for various short-term time horizons. We disentangle the liquidity situation in the market between centralized and decentralized exchanges and find that decentralized marketplaces are less liquid and offer lower barriers to entry, indicating slow market completion.
Text data mining on current newspaper articles from the United States with ProQuest TDM Studio
Authors: Pohlmann Jens 
Published: August 2023

AbstractThis paper introduces and reviews a novel digital resource and service that offers access to a wealth of newspaper data from the United States for Text Data Mining (TDM) and Natural Language Processing (NLP). Due to copyright restrictions, gaining access to relevant text corpora of this sort can be difficult. However, ProQuest TDM Studio and similar services provide researchers with access to data and resources that were previously unavailable for TDM to this extent. By using these tools, researchers can gain insights into current newspaper discourses that still have a tremendous impact on debates in society and on political decisions.After giving an account of the structural and procedural elements that are of relevance for TDM research projects when working with data providers, the paper describes the newspaper data that ProQuest TDM Studio makes available and reviews the ways in which this data can be examined via the tools that ProQuest TDM Studio’s research environment offers. After contrasting this setup with other data providers and their systems, the paper concludes with an analysis of the opportunities and challenges of working with data providers and research environments such as those provided by ProQuest TDM Studio.
Secondary rotational atherectomy is associated with reduced occurrence of prolonged ST-segment elevation following ablation
Authors: Kanda Daisuke , Takumi Takuro , Arikawa Ryo , Anzaki Kazuhiro , Sonoda Takeshi , Ohmure Kenta , Fukumoto Daichi , Tokushige Akihiro , Ohishi Mitsuru 
Published: August 2023

AbstractElevation of the ST segment after percutaneous coronary intervention (PCI) using rotational atherectomy (RA) for severely calcified lesions often persists after disappearance of the slow-flow phenomenon on angiography. We investigated clinical factors relevant to prolonged ST-segment elevation following RA among 152 patients with stable angina undergoing elective PCI. PCI procedures were divided into two strategies, RA without (primary RA strategy) or with (secondary RA strategy) balloon dilatation before RA. Incidence of prolonged ST-segment elevation after disappearance of slow-flow phenomenon was higher in the 56 patients with primary RA strategy (13%) than in the 96 patients with secondary RA strategy (3%, p = 0.039). Univariate logistic regression analysis showed levels of low-density lipoprotein cholesterol (LDL-C) (odds ratio [OR] 0.95, 95% confidence interval [CI] 0.93–0.99; p = 0.013), levels of triglycerides (OR 0.97, 95%CI 0.94–0.99; p = 0.040), and secondary RA strategy (OR 0.23, 95% CI 0.05–0.85; p = 0.028) were inversely associated with occurrence of prolonged ST-segment elevation following ablation. However, hemodialysis, diabetes mellitus, left-ventricular ejection fraction, lesion length ≥ 20 mm, and burr size did not show significant associations. Multivariate logistic regression analysis modeling revealed that secondary RA strategy was significantly associated with the occurrence of prolonged ST-segment elevation (Model 1: OR 0.24, 95% CI 0.05–0.95, p = 0.042; Model 2: OR 0.17, 95% CI 0.03–0.68, p = 0.018; Model 3: OR 0.21, 95% CI 0.03–0.87, p = 0.041) even after adjusting for levels of LDL-C and triglycerides. Secondary RA strategy may be useful to reduce the occurrence of prolonged ST-segment elevation following RA.
First observation on morphological and molecular characters of Bitylenchus ventrosignatus (Tobar Jiménez, 1969) Siddiqi, 1986 isolated from tomato in Dalmada, South Africa
Authors: Shokoohi Ebrahim 
Published: August 2023

AbstractDuring a survey on the biodiversity of plant-parasitic nematodes in Limpopo Province, South Africa, Bitylenchus ventrosignatus was discovered around the rhizosphere of a tomato in Dalmada. The nematodes were extracted using the tray method and then fixed according to available protocols. The morphological characters fit well with the description of B. ventrosignatus. In addition, molecular analysis using 18S and 28S rDNA indicated 99% similarity (MW255611; MW255613) with the Botswana population of B. ventrosignatus. The phylogenetic analysis of 18S and 28S rDNA placed the examined population with other populations of B. ventrosignatus in a group with a posterior probability support value of 1.00. According to published literature, this is the first morphological and molecular characters of 18S and 28S rDNA of B. ventrosignatus from South Africa.
Conductive and stable polyphenylene/CNT composite membrane for electrically enhanced membrane fouling mitigation
Authors: Xie Huijuan , Zhang Haiguang , Wang Xu , Wei Gaoliang , Chen Shuo , Quan Xie 
Published: August 2023

Abstract
Nanocarbon-based conductive membranes, especially carbon nanotube (CNT)-based membranes, have tremendous potential for wastewater treatment and water purification because of their excellent water permeability and selectivity, as well as their electrochemically enhanced performance (e.g., improved antifouling ability). However, it remains challenging to prepare CNT membranes with high structural stability and high electrical conductivity. In this study, a highly electroconductive and structurally stable polyphenylene/CNT (PP/CNT) composite membrane was prepared by electropolymerizing biphenyl on a CNT hollow fiber membrane. The PP/CNT membrane showed 3.4 and 5.0 times higher electrical conductivity than pure CNT and poly(vinyl alcohol)/CNT (PVA/CNT) membranes, respectively. The structural stability of the membrane was superior to that of the pure CNT membrane and comparable to that of the PVA/CNT membrane. The membrane fouling was significantly alleviated under an electrical assistance of − V, with a flux loss of only 11.7% after 5 h filtration of humic acid, which is significantly lower than those of PP/CNT membranes without electro-assistance (56.8%) and commercial polyvinylidene fluoride (PVDF) membranes (64.1%). Additionally, the rejection of negatively charged pollutants (humic acid and sodium alginate) was improved by the enhanced electrostatic repulsion. After four consecutive filtration-cleaning cycle tests, the flux recovery rate after backwashing reached 97.2%, which was much higher than those of electricity-free PP/CNT membranes (67.0%) and commercial PVDF membranes (61.1%). This study offers insights into the preparation of stable conductive membranes for membrane fouling control in potential water treatment applications.