bluuebunny/crossref_metadata_2025 huggingface dataset:
Using distributed acoustic sensing to characterize unconventional reservoirs via perforation-shot triggered P waves
Authors: Li Peiyao , Jin Ge
Published: January 2024

The lack of knowledge of lateral heterogeneity in unconventional reservoirs commonly has negative impacts on drilling, completion efficiency, and production. However, current methods, such as well logging and seismic surveying, are limited in their ability to characterize unconventional reservoirs. We develop an alternative geophysical approach that uses distributed acoustic sensing (DAS) and perforation shots to characterize unconventional reservoirs. In our field data set, DAS-recorded perforation shots show strong P-wave signals. The recorded P-wave waveforms from the study area exhibit dispersive behavior, which can be clearly identified after signal processing. The spatial variations in phase velocity along the horizontal wellbore can be reliably measured by averaging the measurements from multiple closely situated perforation shots. We observe a low phase-velocity zone along the study well, which is spatially consistent with the well logs and root mean square amplitude extracted from the 3D seismic volume. The observed dispersive behavior of P waves is validated through numerical modeling. By comparing the results from the proposed method with those from modeling results and other measurements, we conclude that the proposed method results in a reasonable radius of investigation for unconventional reservoir characterization. The method also has the potential to infer hydraulic fracturing effectiveness by comparing the phase-velocity difference before and after stimulation. The data acquisition of the proposed workflow can be combined with perforation shot operations, which provides a cost-effective and suitable approach to investigating lateral heterogeneity in unconventional reservoirs.
Incidence and Prevalence of Fibrous Dysplasia/McCune-Albright Syndrome: A Nationwide Registry-Based Study in Denmark
Authors: Meier Maartje E , Vágó Emese , Abrahamsen Bo , Dekkers Olaf M , Horváth-Puhó Erzsébet , Rejnmark Lars , Appelman-Dijkstra Natasha M
Published: January 2024

Context

Fibrous dysplasia/McCune-Albright syndrome (FD/MAS) is a rare genetic disorder. Incidence and prevalence are not well-studied. Epidemiological research is complicated by the rarity of FD/MAS, absence of registries, heterogeneous presentation, and possibly asymptomatic phenotype. FD/MAS may present with FGF23-mediated hypophosphatemia, of which the epidemiology is also unclear.

Objective

Evaluate incidence and prevalence of FD/MAS and FD/MAS-related hypophosphatemia.

Methods

This cohort study based on the nationwide Danish National Patient Registry from 1995-2018, included patients identified by ICD-10 codes M85.0 (monostotic FD [MFD]) and Q78.1 (polyostotic FD [PFD]/MAS). Incidence rates and prevalence were calculated and stratified by sex, age, calendar period, and diagnosis code. Cases were screened for FD-associated hypophosphatemia by diagnosis code E.83 (disorder of mineral metabolism) and dispatched vitamin D analogues.

Results

A total of 408 patients were identified, 269 with MFD (66%), 139 with PFD/MAS (34%), comparable between sexes. Incidence of FD/MAS demonstrated increasing secular trend with a rate of 3.6 per 1 000 000 person-years (95% CI: 2.9, 4.5) in 2015-2018. Incidence peaked between age 11 and 20. Prevalence of FD/MAS increased over time to 61.0 (95% CI: 54.6, 67.4) per 1 000 000 persons in 2018. The incidence rate of MFD was 1.5-fold that of PFD/MAS in the first decade, rising to 2.5-fold in the last decade. No FD/MAS cases were registered with diagnosis code or treatment for hypophosphatemia.

Conclusion

FD/MAS is rare, diagnosis peaks during adolescence without sex predominance, and MFD is most prevalent. Hypophosphatemia may be underdiagnosed and undertreated, or it may be underregistered, comparing this study to literature.
The Trauma Mantras
Authors: Kusserow Adrie
Published: January 2024

The Trauma Mantras is a memoir by medical anthropologist, teacher, and writer Adrie Kusserow, who has worked with refugees and humanitarian projects in Bhutan, Nepal, India, Uganda, South Sudan, and the United States. It is a memoir of witness and humility and, ultimately, a way to critique and gain a fresh perspective on Western approaches to the self, suffering, and healing. Kusserow interrogates the way American culture prizes a psychologized individualism, the supposed fragility of the self. In relentlessly questioning the Western tribe of individualism with a hunger to bust out of such narrow confines, she hints at the importance of widening the American self. As she delves into humanity's numerous social and political ills, she does not let herself off the hook, reflecting rigorously on her own position and commitments. Kusserow travels the world in these poetic meditations, exploring the desperate fictions that “East” and “West” still cling to about each other, the stories we tell about ourselves and obsessively weave from the dominant cultural meanings that surround us.
Three-Dimensional Morphological Change of Intracranial Aneurysms Before and Around Rupture
Authors: Kamphuis Maarten J. , Timmins Kimberley M. , Kuijf Hugo J. , de Graaf Eva K. L. , Rinkel Gabriel J. E. , Vergouwen Mervyn D. I. , van der Schaaf Irene C.
Published: January 2024

BACKGROUND AND OBJECTIVES:

Patients with an unruptured intracranial aneurysm often undergo periodic imaging to detect potential aneurysm growth, which is associated with an increased rupture risk. Because prediction of rupture based on growth is moderate, morphological changes have gained interest as a risk factor for rupture. We studied 3-dimensional–quantified morphological changes over time during radiological monitoring before rupture and around rupture.

METHODS:

In this retrospective observational study, we identified aneurysms that ruptured during follow-up, with imaging available for at least 2 time points before rupture and one after rupture. For each time point, we obtained 8 morphological parameters: 2-dimensional size, volume, surface area, compactness 1 and 2, sphericity, elongation, and flatness. Morphological changes before rupture and around rupture were log-transformed, scaled, and analyzed with linear mixed-effects models.

RESULTS:

We included 16 aneurysms in 16 patients who were imaged between 2004 and 2021. In the time period before rupture (median follow-up duration 1200 days, IQR 736-1340), 3 size-related morphological parameters increased: 2-dimensional size (estimated mean change 0.44, 95% CI 0.24-0.65), volume (estimated mean change 0.34, 95% CI 0.12-0.56), and surface area (0.33, 95% CI 0.11-0.54). In the period around rupture (median follow-up duration 407 days, IQR 148-719), these parameters further increased. In addition, 5 morphological parameters (compactness 1 and 2, sphericity, elongation, and flatness) decreased around rupture but not before rupture.

CONCLUSION:

Change in aneurysm volume and surface area may be novel risk factors for rupture. Because most morphological parameters changed around but not before rupture, morphological changes during these 2 periods should be regarded as different processes. This implies that postrupture morphology should not be used as a surrogate for prerupture morphology in rupture prediction models.
Machiavelli's Ethics on Expansion and Empire
Authors: Vavouras Elias
Published: January 2024

Machiavelli believes that the expansion of a state is inevitable. Human affairs are characterized by constant movement and change, and expansion is the necessary stage of a state moving towards its prosperity. But there are historical examples of states that tried to stand stable for centuries and resist movement and expansion, but ultimately failed, because they were not prepared to grow by themselves or to deal with the growth of their enemies. This article tries to interpret the Machiavellian arguments that support the thesis that the expansion of a state is inevitable and argue that its entrenchment within its borders is something contrary not only to the nature of human affairs but also to the proper constitution of the state. Also, the crucial question is whether Machiavelli's positions have ethical foundations rooted either in human natural right or in the modes or means of expansion. From this point of view, the terms hegemony and empire acquire a different meaning and a different moral dimension.
Polis, Loimos, Stasis: Thucydides about Disintegration of the Political System
Authors: Stefanovski Mirjana , Čavoški Kosta
Published: January 2024

This paper discusses Thucydides’ analysis of the disintegration of the political community under the unbearable stress in cases of the plague epidemic in Athens and civil war in Kerkyra. Due attention is paid to Thucydides’ methodology: the application of the art of medicine and antilogies. The destruction of the morality, fading away of virtue and neglect of both human and divine laws caused by the enormous fear of plague are presented through contrasting the state of lawlessness to the picture of the ideal order from the famous Pericles’ speech in honor of the fallen Athenians. It is being analyzed marked similarity between the state of lawlessness in Athens and the destruction of the political order in stasis in Kerkyra concerning the destruction of the public morality, disappearing of lawfulness, and cancelling of the common good, despite the difference in predominant motivating passions – fear and lust for power, and different ways of corruption of the order in polis – apolitical stance and apathy vs. radical politicization. Finally, it is underlined Thucydides’ understanding of repetition of the historical events after the same pattern because of the changelessness of human nature. It is milder in peace and regular ordered state of affairs, so that people are usually sensible and honest, acquire moral stance and embrace lawfulness, whereas when it is exposed to danger and faces the hardest challenges, it loses its considerations and restraints and shows its evil, violent and cruel side.
Progressus as an Explanatory Model: An Anthropological Principle Illustrated by the Russia-Ukraine War
Authors: Ertl Paul
Published: January 2024

At the beginning of the Russian Federation’s attack on Ukraine in February 2022, the European Union put up massive resistance, but due to its sudden overload, it was unable to deal with the situation adequately. It was in a state of paralysis for some time. Therefore, five explanatory models for the Russian actions are presented: an offensive, a defensive, a situational, a socio-cultural, and an ideological-historical one. It is then shown that the German term Gewalt, which combines the English terms violence, power, and force ontologically, is best suited to summarize and describe all these models. It is also shown that Gewalt is a neutral, fundamental human concept that can be described as one of the basic driving forces of man. By piercing society, Gewalt constitutes an impulse, a motivation that stimulates and fuels the individual and society in toto. This leads to what we call Progressus, which depends on four variables – group desire, potential means of violence and force, group aims and objectives, as well as group comparison and evaluation. Progressus is inherent in all persons and in all societies. It can be analyzed and managed in a variety of different ways. Combined with the foundation of Gewalt, seen as neutral agent in varying levels of intensity, Progressus forms a matrix for efficient analysis to describe positive and frictional interaction, establishes social relations from friendship up to war; and this between individuals, groups and/or states. How this is possibly implemented in practice is described at the end using an example from the previously presented explanatory models.
The folk song "The bridge of Arta". Bridging modern Greek literature and drama in an educational context
Authors: Papadopoulos Simos , Basoukou Lina
Published: January 2024

This paper presents the creative use of dramatic tension techniques in teaching literature at secondary school level, with a specific focus on the folk song "The Bridge of Arta." The paper describes the main principles of the Curriculum for the teaching of Literature in Secondary Education in terms of expanding the teaching of texts within the field of dramatic art. It outlines the objectives of the proposal for employing dramatic techniques in this poem and analyzes the plot of the poem. The paper then suggests applications of experiential practice to enhance the elements of dramatic tension within the literary text. Additionally, it discusses the benefits of theatrical exploration in enriching the students' points of view.
Exploring the myth of “Orpheus and Eurydice” in the classroom with the use of Inquiry Drama Method
Authors: Papadopoulos Simos , Papakosta Alexia
Published: January 2024

This article focuses on the dramatic exploration of the ancient Greek myth of “Orpheus and Eurydice”. Our aim is to approach issues and concepts concerning nature, man and life, with the use of appropriate drama techniques based on the Inquiry Drama method which, through critical thinking and playful, improvised and organized stage exploration, pursues self-consciousness along with the change of attitudes and behaviors for the confrontation of timeless everyday life issues.
Do electromagnetic fields significantly affect thyroid cells and their functions? – A systematic review
Authors: Zufry Hendra , Rudijanto Achmad , Soeatmadji Djoko Wahono , Sakti Setyawan Purnomo , Munadi Khairul , Sujuti Hidayat , Mintaroem Karyono
Published: January 2024

Background: This review aimed to emphasize the effects, mechanisms involved, conditions required to trigger impacts, and the adapted responses of EMF on thyroid gland.

Methods: The included literatures were collected from the Oceania Radiofrequency Scientific Advisory Association (ORSAA) database which were published before April 2021. The searched was then refined with keyword ‘thyroid’.

Results: A total of 15 experimental studies, 10 observational studies, 4 review articles, and 1 medical hypothesis were included. Hypothyroidism is the most reported functional abnormality. The identified morphological abnormalities of the thyroid gland include increased follicular epithelial and interfollicular tissue, decreased colloid volume of cubic cells, follicular fluid, interfollicular space, changes in lysosomes, granular endoplasmic reticulum, cell nuclei, changes in glandular structures including cell hypotrophy, glandular hypertrophy, and increased apoptosis via caspase-dependent pathways. The observational studies reported an increase in thyroid cancer incidence and the diameter of the left anteroposterior of the thyroid gland. Postulation that thyroid cancer is associated with thyroid cancer EMF exposure, is suggested by a medical hypothesis paper. The possibilities of hypothyroidism, thyroid cancer, and cell apoptosis due to EMF exposure have been highlighted in the review articles.

Conclusion: Despite these findings, critical elements, such as the effects and mechanisms of EMF exposure on thyroid hormone transporters, genomic and non-genomic actions, conditions required for the effect to occur, and the resultant adapted responses, have not been explored suggesting the need of further research.
An international, cross-sectional survey of preprint attitudes among biomedical researchers
Authors: Ng Jeremy Y. , Chow Valerie , Santoro Lucas J. , Armond Anna Catharina Vieira , Pirshahid Sanam Ebrahimzadeh , Cobey Kelly D. , Moher David
Published: January 2024

Background Preprints are scientific manuscripts that are made available on open-access servers but are not yet peer reviewed. Although preprints are becoming more prevalent, uptake is not uniform or optimal. Understanding researchers’ opinions and attitudes toward preprints is valuable for their successful implementation. Understanding knowledge gaps and researchers’ attitudes toward preprinting can assist stakeholders, such as journals, funding agencies, and universities, to implement preprints more effectively. Here, we aimed to collect perceptions and behaviours regarding preprints across an international sample of biomedical researchers. Methods Biomedical authors were identified by a keyword-based, systematic search of the MEDLINE database, and their emails were extracted to invite them to our survey. A cross-sectional anonymous survey was distributed to all identified biomedical authors to collect their knowledge, attitudes, and opinions regarding preprinting. Results The survey was completed by 730 biomedical researchers with a response rate of 3.20% and demonstrated a wide range of attitudes and opinions about preprints with authors from various disciplines and career stages worldwide. Most respondents were familiar with the concept of preprints but most had not previously published a preprint. The lead author of the project and journal policy had the greatest impact on decisions to post a preprint, whereas employers/research institutes had the least impact. Supporting open science practices was the highest ranked incentive, while increasing authors’ visibility was the highest ranked motivation for publishing preprints. Conclusions Although many biomedical researchers recognize the benefits of preprints, there is still hesitation among others to engage in this practice. This may be due to the general lack of peer review of preprints and little enthusiasm from external organizations such as journals, funding agencies, and universities. Future work is needed to determine optimal ways to increase researchers’ attitudes through modifications to current preprint systems and policies.
Conditioning factors for the scientific productivity of undergraduate students of health sciences at a private Peruvian University: A cross-sectional analytical study
Authors: Bonilla-Asalde César Antonio , Rivera-Lozada Isabel Cristina , Rivera-Lozada Oriana
Published: January 2024

Background The objective of this study was to determine the conditioning factors for scientific research productivity in university students of health sciences. Methods A cross-sectional analytical observational study was conducted. The study population was 4104 students enrolled during the 2021-I semester in the Faculty of Health Sciences of a private Peruvian university. A sample size of 400 students was determined and a stratified probability sampling was used. The variables were measured through surveys. The dependent variable was scientific research productivity, and the independent variables were institutional culture, knowledge management and technological capital. Summary measures are reported according to the type of variable. The chi-square test with a significance level of p<0.05 was applied to assess the association between the variables of interest. A multiple logistic regression analysis was performed using the Stepwise method. Prevalence ratios (PR) with their respective 95% confidence intervals (95%CI) were calculated. Results From the total of 400 students, 74.5% were male, 57.25% were aged between 18 and 27 years, 17% belonged to the school of human medicine and 72% were in their sixth year of studies. Scientific research productivity was associated with management commitment (PR=1.493; 95%CI: 1.077–2.068, p=0.015), sense of personal growth (PR=1.632; 95%CI: 1.041–2.558; p=0.024), recognition by the university (PR=1.385; 95%CI: 1.012–1.896; p=0.043), strategic alliances (PR=1.422; 95%CI: 1.032–1.959; p=0. 03), having research proposals (PR=1.522; 95%CI: 1.114–2.08; p=0.009), dissemination of results obtained (PR=1.542; 95%CI: 1.12–2.122; p=0.01), availability of human resources (PR=1.591; 95%CI: 1.165–2.173; p=0.004), access to equipment and software (PR=1.482; 95%CI: 1.061–2.069; p=0.018) and to laboratories (PR=1.438; 95%CI: 1.047–1.974; p=0.024). Conclusion It is concluded that the research productivity of undergraduate students of health sciences is low. It is necessary to strengthen research promotion measures in universities for the control and monitoring of students’ scientific participation.
Incidence and severity of medication-related osteonecrosis of the jaw in patients with osteoporosis using data from a Korean nationwide sample cohort in 2002 to 2019: a retrospective study
Authors: Ko Su-Youn , Hwang Tae-Yoon , Baek Kiwook , Park Chulyong
Published: January 2024

Background: Medication-related osteonecrosis of the jaw (MRONJ) is a significant concern, particularly among patients taking bisphosphonates (BPs), denosumab, and selective estrogen receptor modulators (SERMs) for osteoporosis. Despite the known risks, large-scale cohort studies examining the incidence and severity of MRONJ are lacking. We aimed to ascertain the incidence and risk of MRONJ among these patients, whom we stratified by age groups, medication types, and duration of use.Methods: We utilized data from the National Health Insurance Service’s sample cohort database, focusing on patients aged 40 years and above diagnosed with osteoporosis. The patients were divided into three groups: those prescribed BPs only, those prescribed SERMs only, and those prescribed both. Results: The overall incidence rate of MRONJ was 0.17%. A significantly higher incidence rate was observed among those taking osteoporosis medications, particularly among females with a relative risk of 4.99 (95% confidence interval, 3.21–7.74). The SERM group also had an incidence rate comparable to that of the BP group. Severity was assessed based on the invasiveness of the treatment methods, with 71.3% undergoing invasive treatment in the medication group.Conclusion: This study provides valuable insights into the incidence and severity of MRONJ among a large cohort of patients with osteoporosis. It underscores the need for comprehensive guidance on MRONJ risks across different medication groups and sets the stage for future research focusing on specific populations and treatment outcomes.
Nanotechnology for Novel Drug Delivery: A Systematic Review of Classification, Preparation, Characterization, and Applications of Nanoparticles in Drug Delivery
Authors: Singh Mitali , Sharma Vijay , Shrivastav Alankar , Singh Pawan , Verma Navneet
Published: January 2024

ABSTRACT: The goal of nanotechnology is to develop new nanoscale components by designing, fabricating, and using materials that are atomically, molecularly, and macromolecular organized. For several decades, there has been an abundance of scientific curiosity in the administration of medicines using particle delivery systems as carriers for small and big molecules. Particulate systems, such as nanoparticles, have been utilized as a physical method to modify and improve the pharmacokinetic and pharmacodynamics aspects of numerous pharmaceutical molecules. A typical nanoparticle is between 1 and 100 nm in size and has one or more dimensions. Nanoparticles are usually categorized as inorganic, organic, or carbon-based particles according to their superior characteristics in comparison to larger sizes of the corresponding materials. They have been utilized in vivo to protect the drug entity in the systemic circulation, limiting drug distribution to the targeted areas, and to transport the drug at a controlled and sustained rate to its site of action. The most innovative and promising medication delivery technique at the moment is nanoparticle technology. This methodical research examines the categorization, characteristics, techniques, characterizations, and applications of nanoparticles in the delivery of drug molecules.
Investigation on the Mineral Configurations, Antioxidant Power, and Durability in Processed Tamarind (Tamarindus indica L.) Seed Powder
Authors: C Hemalatha. , S Parameshwari.
Published: January 2024

ABSTRACT: The pulp from the tamarind (Tamarindus indica L.) manufacturing sector disposes of the tamarind seed as waste materials. In the present investigation, processed Tamarindus indica L. seed powders' mineral compositions, antioxidant activities, and duration of shelf life have been investigated. Standard techniques were used to analyze the mineral compositions, antioxidant activity (Total Phenolic, Flavonoid content and 2,2-diphenyl-1-picrylhydrazyl) and shelf life (Total plate count (TPC), fungi, and mold) in processed tamarind powder at periodic intervals of 0, 2, 4, 6, and 8 months. The subsequent minerals were substantially more abundant in the roasted T.indica seed flour. The roasted T. India seed powder had high antioxidant powers of 19.83mg of TFC, 49.5mg of TPC, and 31 g/ml of 2,2-diphenyl-1-picrylhydrazyl (DPPH). The roasting method increases the best antioxidant potency and low glycemic index and glycemic load. The total plate counts of the processed T. India seed powder were within the legally permitted ranges of 107 cfu/g, and fungi and mold proliferation were at extremely low levels, so the powder could be used to make additional nutritional products. Roasted seed powder can be employed as a therapeutic food and as a food supplement because of its vital mineral elements and strong antioxidant potential.
In Vitro Organogenesis and Epiphyllous Secondary Buds Formation in Kalanchoe tubiflora (Harvey), Hamet, (Crassulaceae)
Authors: C Sathya , M. N Abubacker
Published: January 2024

ABSTRACT: In-vitro organogenesis and epiphyllous secondary buds production in Kalanchoe tubiflora were carried out using MS medium supplemented with appropriate growth regulators. This protocol can be valuable for the mass propagation of this plant species, which is crucial for effective conservation efforts. The highest yield of whitish green massive callus was obtained in MS medium supplemented with 2.0 mg/l of 2,4-dichlorophenoxy acetic acid and 1.0 mg/l of Indole-3-butyric acid. Rapid shoot formation was achieved in MS medium supplemented with 2.0 mg/l of Benzyl amino purine, 1.0 mg/l of kinetin, and 1.0 mg/l of IBA. Effective root induction was observed in MS medium supplemented with 1.5 mg/l of Indole-3-acetic acid, 1.0 mg/l of BA, and 0.5 mg/l of Naphthalene acetic acid. Epiphyllous secondary bud induction was successfully achieved in Murashige and Skoog medium supplemented with 1.0 mg/l of BAP, 0.5 mg/l of kinetin, 0.5 mg/l of IBA, and 0.5 mg/l of Gibberellic acid 3. The plantlets were successfully acclimatized and thrived well in the greenhouse environment. This protocol has significant potential for large-scale production of K. tubiflora and can contribute to its conservation efforts.
Antibacterial and Anti Diabetic Activities of Ethyl Acetate Fractions of Lactobacillus Isolated from Cow and Goat Milk
Authors: R Abinash , A Karthick, , G Jegan
Published: January 2024

ABSTRACT: Antibiotics are one of our most important weapons in fighting with bacterial infections and diabetics. Drugs were derived from natural sources that play an important role in the treatment and prevention of human diseases. Traditional fermented foods containing lactic acid bacteria such as milk, yogurt, curd, etc., have historically been consumed by human. Lactobacilli are well known friendly bacteria for their probiotic activities against pathogens. In this investigation cow and goat milk samples were selected and collected for the study. The gram stain was used for morphological identification of Lactobacillus sp. in the two samples. The two isolated Lactobacillus sp. from goat and cow milk samples were subjected to the extraction of secondary metabolites using the solvent ethyl acetate. The two extracts of Lactobacillus spp. those were isolated from cow and goat milk samples, showed antibacterial activity against Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Pseudomonas aeruginosa. The zone of inhibition was assessed by mm. The good results of zones were observed at 1000 and 2000 µg in cow milk and 2000 µg in goat milk extraction. These metabolites were also showed good results in antidiabetic activity using the alpha amylase inhibition activity. The IC50 value has showed moderate activity in the two crude extractions when compared to acarbose standard drug. Therefore, in this investigation the Lactobacillus sp. producing secondary metabolites was good source for the activity of antibacterial and antidiabetic activity.
La trayectoria emocional del duelo en El invencible verano de Liliana de Cristina Rivera Garza y Punto de cruz de Jazmina Barrera
Authors: Linares Selma Rodal
Published: January 2024

Abstract: El invencible verano de Liliana by Cristina Rivera Garza and Punto de cruz by Jazmina Barrera create a sentimental trajectory from the loneliness of shame and fear to the anger and love of the feminist alliance. The first weaves the femicide of Liliana with other stories of gender violence to interrupt the logic of victimization through an imaginary exercise of co-writing with Liliana and others, through her archive, the testimonies from the ones who loved her, and the Latin American Feminist Activism. Differently, Punto de cruz suggests that a text is as collective as the embroidery. By knitting parallelisms between the affective responses to gender violence of the fictional characters and unseen stories of feminist resistance in Women's history, it shows the single female narrator as a product of co-writing with other women. Through different practices of disappropriation they reveal the normalized ways in which femicide violence acts upon the sociality of emotions to isolate women. But, as well, they display feminist anger as a productive affection that can change our response to pain into an ethical one: a feminist love that embraces otherness as an alternative to the patriarchal love that supports femicide violence.
The Many Forms of Malintzin: Remembering the Colonial-era Interpreter Through Indigenous Storytelling
Authors: Pliego Mariajosé Rodríguez
Published: January 2024

Abstract: This article studies contemporary Indigenous authors who revisit the memory of Malintzin by writing at the intersection of text, orality, and dance. I begin by analyzing Yásnaya Aguilar Gil's essay collection Tres veces tres (2021), which considers the colonial-era interpreter from the vantage point of Mixe ritual practices, Zapotec ceremonial dances, and Indigenous textiles. I read Tres veces tres alongside Ethel Xochitiotzin Pérez's short story " Angelina Maria ," which records oral narratives about Malintzin as a protector of the forests in Tlaxcala. I argue that by searching for Malintzin through non-textual forms, Aguilar Gil and Xochitiotzin Pérez put pressure on Mexican foundational narratives and, more importantly, question the centrality of the written word as our primary instrument for recording history. Both authors center the multilingual and multimedia traditions of Indigenous literatures as a point of departure to remember Malintzin in motion, dancing across town squares and walking through the forests of Tlaxcala.
Muestrario
Authors: Dennstedt Francesca , Torres-Rodríguez Laura J.
Published: January 2024

Abstract: A finales del 2022 las editoras de este dossier invitamos a diferentes escritoras, editoras, traductoras, gestoras culturales e investigadoras mexicanas a responder dos preguntas de forma libre con un límite de palabras. Las preguntas, transcritas en su redacción original, son las siguientes: ¿cuál es la relación entre los feminismos (y/o las resistencias al patriarcado, al racismo y clasismo) y la literatura mexicana contemporánea? ¿y/o entre la literatura mexicana contemporánea y el activismo? ¿Encuentras una conexión entre estas resistencias y las formas contemporáneas de escritura (escritura a dos manos, experimentación formal, etc.)? Estas son las respuestas compiladas.
Clarification on the understanding of contrast theory in relation to the article “ON and OFF receptive field processing in the presence of optical scattering”: comment
Authors: Neitz Jay , Neitz Maureen
Published: January 2024

We are writing to address errors of misrepresentation in the article “ON and OFF receptive field processing in the presence of optical scattering” [Biomed. Opt. Express 14, 2618 (2023)10.1364/BOE.489117]. In their investigation of predictions of “contrast theory” to explain the efficacy of diffusion optics technology (DOT), a myopia control lens design [Br. J. Ophthalmol. 107, 1709 (2023)10.1136/bjo-2021-321005], Breher et al. incorrectly indicated that our contrast theory proposed that the association between cone opsin gene splicing defects and myopia was due to differential involvement in ON- and OFF-visual pathways. In addition, the Authors write that we have “hypothesized enhanced ON contrast sensitivity in myopes,” but we predict the opposite.
Image dehazing combining polarization properties and deep learning
Authors: Suo Ke , Lv Yaowen , Yin Jiachao , Yang Yang , Huang Xi
Published: January 2024

In order to solve the problems of color shift and incomplete dehazing after image dehazing, this paper proposes an improved image self-supervised learning dehazing algorithm that combines polarization characteristics and deep learning. First, based on the YOLY network framework, a multiscale module and an attention mechanism module are introduced into the transmission feature estimation network. This enables the extraction of feature information at different scales and allocation of weights, and effectively improves the accuracy of transmission map estimation. Second, a brightness consistency loss based on the YCbCr color space and a color consistency loss are proposed to constrain the brightness and color consistency of the dehazing results, resolving the problems of darkened brightness and color shifts in dehazed images. Finally, the network is trained to dehaze polarized images based on the atmospheric scattering model and loss function constraints. Experiments are conducted on synthetic and real-world data, and comparisons are made with six contrasting dehazing algorithms. The results demonstrate that, compared to the contrastive dehazing algorithms, the proposed algorithm achieves PSNR and SSIM values of 23.92 and 0.94, respectively, on synthetic image samples. For real-world image samples, color restoration is more authentic, contrast is higher, and detailed information is richer. Both subjective and objective evaluations show significant improvements. This validates the effectiveness and superiority of the proposed dehazing algorithm.
Impact of image registration errors on the quality of hyperspectral images in imaging static Fourier transform spectrometry
Authors: Chiliaeva Varvara , Almansa Andrés , Ferrec Yann , Gaucel Jean-Michel , Gazzano Olivier , Goudail François , Krawczyk Rodolphe , Sauer Hervé
Published: January 2024

Imaging static Fourier transform spectrometry (isFTS) is used for pushbroom airborne or spaceborne hyperspectral remote sensing. In isFTS, a static two-wave interferometer imprints linear interference fringes over the image of the scene, so that the spectral information is multiplexed over several instantaneous images, and numerical reconstruction is needed to recover the full spectrum for each pixel. The image registration step is crucial since insufficient accuracy leads to artefacts on the images and the estimated spectra. In order to investigate these artifacts, we performed a theoretical study and designed a simulation program. We established that registration errors create crenellated spatial patterns, the magnitude of which depends on the radiance gradient of the scene, the amplitude of the registration error, and the wavelength. In the case of sinusoidal perturbations, which may correspond for instance to mechanical vibrations of the carrier, we established that spurious peaks appear on the spectrum, similarly to what happens in dynamic FTS, but with spatial patterns specific to static interferometers.
Simplified LIBS-based intensity-ratio approach for concentration estimation (SLICE): an approach for elemental analysis using laser induced breakdown spectroscopy
Authors: Tarai Akash Kumar , Rashkovskiy Sergey A. , Gundawar Manoj Kumar
Published: January 2024

We propose what we believe to be a new approach for elemental analysis using laser induced breakdown spectroscopy (LIBS). This method offers enhanced convenience and simplicity for elemental analysis as it eliminates the necessity of Boltzmann/ Saha-Boltzmann plot. It is an intensity-ratio based approach that provides several notable advantages. One of the key benefits is its ability to perform comprehensive elemental analysis using only a few spectral lines; specifically, only n + 1 emission lines are sufficient for a sample containing n elemental species. This offers a great flexibility in the choice of emission lines which do not suffer from self-absorption. Further, high accuracy can be obtained as many repeated estimations from a single measurement are possible. We demonstrate the theory and working procedure of this technique by experimentally recording the data of two samples (binary and ternary copper alloys). A nanosecond Nd:YAG pulsed laser of ∼7 ns pulse duration and 532 nm incident wavelength is used. The results are in good agreement with CF-LIBS and Energy-dispersive X-ray spectroscopy (EDS).
Hard x-ray grazing-incidence ptychography: large field-of-view nanostructure imaging with ultra-high surface sensitivity
Authors: Jørgensen P. S. , Besley L. , Slyamov A. M. , Diaz A. , Guizar-Sicairos M. , Odstrčil M. , Holler M. , Silvestre C. , Chang B. , Detlefs C. , Andreasen J. W.
Published: January 2024

The morphology and distribution of nanoscale structures, such as
catalytic active nanoparticles and quantum dots on surfaces, have a
significant impact on their function. Thus, the capability of
monitoring these properties during manufacturing and operation is
crucial for the development of devices that rely on such materials. We
demonstrate a technique that allows highly surface-sensitive imaging
of nanostructures on planar surfaces over large areas. The
capabilities of hard x-ray grazing-incidence ptychography combine
aspects from imaging, reflectometry, and grazing-incidence small angle
scattering in providing images that cover a large field of view along
the beam direction while providing high surface sensitivity. For
homogeneous samples, it yields a surface profile sensitivity better
than 1 nm normal to the surface, with a poorer resolution in
the sample surface plane, (i.e., along the beam and transverse
to the beam). Like other surface scattering methods, this technique
facilitates the characterization of nanostructures across
statistically significant surface areas or volumes but with additional
spatial information. In this work, we present a reconstructed test
object spanning 4.5mm×20µm with 20 nm high topology.
Characterization of genetic and molecular tools for studying the endogenous expression of Lactate dehydrogenase in Drosophila melanogaster
Authors: Rai Madhulika , Carter Sarah M. , Shefali Shefali A. , Chawla Geetanjali , Tennessen Jason M.
Published: January 2024

Drosophila melanogaster larval development relies on a specialized metabolic state that utilizes carbohydrates and other dietary nutrients to promote rapid growth. One unique feature of the larval metabolic program is that Lactate Dehydrogenase (Ldh) activity is highly elevated during this growth phase when compared to other stages of the fly life cycle, indicating that Ldh serves a key role in promoting juvenile development. Previous studies of larval Ldh activity have largely focused on the function of this enzyme at the whole animal level, however, Ldh expression varies significantly among larval tissues, raising the question of how this enzyme promotes tissue-specific growth programs. Here we characterize two transgene reporters and an antibody that can be used to study Ldh expression in vivo. We find that all three tools produce similar Ldh expression patterns. Moreover, these reagents demonstrate that the larval Ldh expression pattern is complex, suggesting the purpose of this enzyme varies across cell types. Overall, our studies validate a series of genetic and molecular reagents that can be used to study glycolytic metabolism in the fly.
Effects of surface geometry on light exposure, photoacclimation and photosynthetic energy acquisition in zooxanthellate corals
Authors: López-Londoño Tomás , Enríquez Susana , Iglesias-Prieto Roberto
Published: January 2024

Symbiotic corals display a great array of morphologies, each of which has unique effects on light interception and the photosynthetic performance ofin hospitezooxanthellae. Changes in light availability elicit photoacclimation responses to optimize the energy balances in primary producers, extensively documented for corals exposed to contrasting light regimes along depth gradients. Yet, response variation driven by coral colony geometry and its energetic implications on colonies with contrasting morphologies remain largely unknown. In this study, we assessed the effect of the inclination angle of coral surface on light availability, short- and long-term photoacclimation responses, and potential photosynthetic usable energy. Increasing surface inclination angle resulted in an order of magnitude reduction of light availability, following a linear relationship explained by the cosine law and relative changes in the direct and diffuse components of irradiance. The light gradient induced by surface geometry triggered photoacclimation responses comparable to those observed along depth gradients: changes in the quantum yield of photosystem II, photosynthetic parameters, and optical properties and pigmentation of the coral tissue. Differences in light availability and photoacclimation driven by surface inclination led to contrasting energetic performance. Horizontally and vertically oriented coral surfaces experienced the largest reductions in photosynthetic usable energy as a result of excessive irradiance and light-limiting conditions, respectively. This pattern is predicted to change with depth or local water optical properties. Our study concludes that colony geometry plays an essential role in shaping the energy balance and determining the light niche of zooxanthellate corals.
SSC: The novel self-stack ensemble model for thyroid disease prediction
Authors: Ji Shengjun
Published: January 2024

Thyroid disease presents a significant health risk, lowering the quality of life and increasing treatment costs. The diagnosis of thyroid disease can be challenging, especially for inexperienced practitioners. Machine learning has been established as one of the methods for disease diagnosis based on previous studies. This research introduces a novel and more effective technique for predicting thyroid disease by utilizing machine learning methodologies, surpassing the performance of previous studies in this field. This study utilizes the UCI thyroid disease dataset, which consists of 9172 samples and 30 features, and exhibits a highly imbalanced target class distribution. However, machine learning algorithms trained on imbalanced thyroid disease data face challenges in reliably detecting minority data and disease. To address this issue, re-sampling is employed, which modifies the ratio between target classes to balance the data. In this study, the down-sampling approach is utilized to achieve a balanced distribution of target classes. A novel RF-based self-stacking classifier is presented in this research for efficient thyroid disease detection. The proposed approach demonstrates the ability to diagnose primary hypothyroidism, increased binding protein, compensated hypothyroidism, and concurrent non-thyroidal illness with an accuracy of 99.5%. The recommended model exhibits state-of-the-art performance, achieving 100% macro precision, 100% macro recall, and 100% macro F1-score. A thorough comparative assessment is conducted to demonstrate the viability of the proposed approach, including several machine learning classifiers, deep neural networks, and ensemble voting classifiers. The results of K-fold cross-validation provide further support for the efficacy of the proposed self-stacking classifier.
Applying ChatGPT to tackle the side effects of personal learning environments from learner and learning perspective: An interview of experts in higher education
Authors: Xu XiaoShu , Wang XiBing , Zhang YunFeng , Zheng Rong
Published: January 2024

This paper investigates the capacity of ChatGPT, an advanced language model created by OpenAI, to mitigate the side effects encountered by learners in Personal Learning Environments (PLEs) within higher education. A series of semi-structured interviews were conducted with six professors and three Information and Communication Technology (ICT) experts. Employing thematic analysis, the interview data were assessed, revealing that the side effects stemming from the learner and learning perspectives could be primarily categorized into cognitive, non-cognitive, and metacognitive challenges. The findings of the thematic analysis indicate that, from a cognitive standpoint, ChatGPT can generate relevant and trustworthy information, furnish personalized learning resources, and facilitate interdisciplinary learning to fully actualize learners’ potential. Moreover, ChatGPT can aid learners in cultivating non-cognitive skills, including motivation, perseverance, self-regulation, and self-efficacy, as well as metacognitive abilities such as self-determination, self-efficacy, and self-regulation, by providing tailored feedback, fostering creativity, and stimulating critical thinking activities. This study offers valuable insights for integrating artificial intelligence technologies to unleash the full potential of PLEs in higher education.
An early warning approach for the rapid identification of extreme weather disasters based on phased array dual polarization radar cooperative network data
Authors: Xiao Miaoyuan , Wang Lei , Dong Yuanchang , Zhang Chenghong , Wang Shunjiu , Yang Kangquan , Zhang Kui
Published: January 2024

In recent years, X-band phase array dual polarization weather radar technology has matured. The cooperative networking data from X-band phase array dual polarization weather radar have many advantages compared with traditional methods, namely, high spatial and temporal resolution (approximately 70 seconds in one scan, 30 m in radial distance resolution), wide coverages that can compensate for the observation blind spots, and data fusion technology that is used in the observation overlap area to ensure that the observed precipitation data have spatial continuity. Based on the above radar systems, this study proposes an improved hail and lightning weather disaster rapid identification and early warning algorithm. The improved thunderstorm identification, tracking, analysis, and nowcasting (TITAN) algorithm is used to quickly identify three-dimensional strong convective storm cells. Large sample observation experiment data are used to invert the localized hail index (HDR) to identify the hail position. The fuzzy logic method is used to comprehensively determine the probability of lightning occurrence. The comparative analysis experiment shows that, compared with the live observation data from the ground-based automatic station, the hail and lightning disaster weather warning algorithm developed by this study can increase warning times by approximately 7 minutes over the traditional algorithm, and its critical success index (CSI), false alarm ratio (FAR) and omission alarm ratio (OAR) scores are better than those of the traditional method. The average root mean square error (ARMSE) for identifying hail and lightning locations by this improved method is also significantly better than that of traditional methods. We show that our method can provide probabilistic predictions that improve hail and lightning identification, improve the precision of early warning and support operational utility at higher resolutions and with greater lead times that traditional methods struggle to achieve.