bluuebunny/crossref_metadata_2025 huggingface dataset:
A Case Study: Henoch-Schonlein Purpura in a Geriatric Patient with Gastrointestinal Involvement
Authors: Basnet Suberna , Na Sanja , Yalla sai Vijaya Durga , Allu Tejaswi , Kumar Amit
Published: April 2023

IgA-mediated immune vasculitis known as Henoch-Schonlein purpura affects the small blood vessels in the joints, kidneys, GI tract, skin, and, less frequently, the brain and lungs. The present case report describes a 62-year-old female patient with Henoch-Schonlein purpura (HSP). HSP is a type of vasculitis that affects small vessels and is characterized by purpura, arthritis, abdominal pain, and kidney involvement. In this case, the patient presented with a rash with red lesions on the upper and lower limbs, crusted lesions on both lower limbs, and acute onset abdominal pain with hematochezia. Endoscopy revealed diffuse ulcerations in the stomach, duodenum, and right colon(fig.1). Biopsies revealed a leukocytoclastic vasculitis in the skin (fig2) and gastrointestinal tract.  The patient had a history of hypertension and smoking, and laboratory investigations revealed leucocytosis, anaemia, and electrolyte imbalances. The diagnosis of HSP was made based on the clinical presentation, laboratory findings, and biopsy results. The patient was treated with a combination of steroids, antibiotics, and supportive care, which led to significant improvement of symptoms and laboratory findings. Steroid therapy was given according to guidelines for the treatment of HSP, and tapering the steroid therapy helped to improve gastrointestinal symptoms. The case report highlights the importance of careful monitoring and appropriate treatment of HSP in geriatric patients, as well as the potential benefits of immunosuppressant therapy.
Spirited Histories. Technologies, Media, and Trauma in Paranormal Chile, de Diana Espírito Santo
Authors: Orellana Felipe
Published: April 2023

Reseña del libro Spirited Histories. Technologies, Media, and Trauma in Paranormal Chile, de Diana Espírito Santo. London, New York: Routledge, 2023.
REIMAGINING CAREERS IN UNPROPITIOUS CREATIVE FIELDS THROUGH THE META-CREATIVITY OF ALTERNATIVE CREATIVITY: IMPLICATIONS FOR THE MUSIC INDUSTRY
Authors: Moxey Lauren , Daniel Ryan
Published: April 2023

Work by Abraham Maslow and others has proposed that a reasonable degree of fulfilment of various human needs is required for an individual to experience positive wellbeing. Given that an individual’s occupation provides vital financial, social, emotional, and cognitive resources, it is a key determinant of the degree to which their human needs are fulfilled. Some fields of work, such as music, can be described as unpropitious due to the unfavorable conditions awaiting skilled creators who seek to establish a full-time career; consequently, the human needs of such individuals may remain compromised. Alternative creativity is proposed as a type of meta-creativity that supports creative approaches to creative practice, and offers a new conceptual approach to careers in unpropitious creative fields. Alternative creativity provides hope for the many highly skilled musicians who exist in a state of perpetual career uncertainty, freeing them from the heavy burden of unrealistic expectations and the ensuing sense of failure that emerges when these expectations cannot be met. Ultimately, alternative creativity offers musicians the opportunity to reconceptualize and develop their creative practice while maintaining positive wellbeing through the fulfilment of their human needs.
PAH Emission from Star-forming Galaxies in JWST Mid-infrared Imaging of the Lensing Cluster SMACS J0723.3-7327
Authors: Langeroodi Danial , Hjorth Jens
Published: April 2023

The mid-infrared spectra of star-forming galaxies (SFGs) are characterized by characteristic broad polycyclic aromatic hydrocarbon (PAH) emission features at 3–20 μm. As these features are redshifted, they are predicted to dominate the flux at specific mid-infrared wavelengths, leading to substantial redshift-dependent color variations in broadband photometry. The advent of JWST for the first time allows the study of this effect for normal SFGs. Based on spectral energy distribution templates, we here present tracks in mid-infrared (4.4, 7.7, 10, 15, and 18 μm) color–color diagrams describing the redshift dependence of SFG colors. In addition, we present simulated color–color diagrams by populating these tracks using the cosmic star formation history and the star formation rate function. Depending on redshift, we find that SFGs stand out in the color–color diagrams by several magnitudes. We provide the first observational demonstration of this effect for galaxies detected in the JWST Early Release Observations of the field toward the lensing cluster SMACS J0723.3−7327. While the distribution of detected galaxies is consistent with the simulations, the numbers are substantially boosted by lensing effects. The PAH emitter with the highest spectroscopic redshift, detected in all bands, is a multiply imaged galaxy at z = 1.45. There is also a substantial number of cluster members that do not exhibit PAH emission except for one SFG at z = 0.38. Future wider-field observations will further populate mid-infrared color–color diagrams and provide insight into the evolution of typical SFGs.
Conclusive Evidence for a Population of Water Worlds around M Dwarfs Remains Elusive
Authors: Rogers James G. , Schlichting Hilke E. , Owen James E.
Published: April 2023

The population of small, close-in exoplanets is bifurcated into super-Earths and sub-Neptunes. We calculate physically motivated mass–radius relations for sub-Neptunes, with rocky cores and H/He-dominated atmospheres, accounting for their thermal evolution, irradiation, and mass loss. For planets ≲10 M
⊕, we find that sub-Neptunes retain atmospheric mass fractions that scale with planet mass and show that the resulting mass–radius relations are degenerate with results for “water worlds” consisting of a 1:1 silicate-to-ice composition ratio. We further demonstrate that our derived mass–radius relation is in excellent agreement with the observed exoplanet population orbiting M dwarfs and that planet mass and radii alone are insufficient to determine the composition of some sub-Neptunes. Finally, we highlight that current exoplanet demographics show an increase in the ratio of super-Earths to sub-Neptunes with both stellar mass (and therefore luminosity) and age, which are both indicative of thermally driven atmospheric escape processes. Therefore, such processes should not be ignored when making compositional inferences in the mass–radius diagram.
On the Discovery Claim of a New z > 7 Quasar
Authors: Bosman Sarah E. I. , Davies Frederick B. , Bañados Eduardo
Published: April 2023

Koptelova & Hwang (K22) recently claimed a new quasar discovery at z = 7.46. After careful consideration of the publicly available data underlying K22's claim, we find that the observations were contaminated by a moving solar system object, likely a main-belt asteroid. In the absence of the contaminated photometry, there is no evidence for the nearby, persistent WISE source being a high-redshift object; in fact, a detection of the source in DESI Legacy Imaging Surveys z-band rules out a redshift z > 7.3. We present our findings as a cautionary tale of the dangers of passing asteroids for photometric selections.
Impact of baseline anemia on the short- and long-term prognosis of patients presenting with non-ST-elevation myocardial infarction
Authors: Bayraktarova I. , Vladimirov G. , Mateev H. , Alexandrov A. , Trendafilova E.
Published: April 2023

Anaemia at admission is a known predictor of death in patients with myocardial infarction with ST-elevation (STEMI). Data on the effect of anaemia on the prognosis in patients with non-ST-elevation myocardial infarction (NSTEMI) is less readily available. Purpose: We aimed to evaluate the frequency of anaemia in a Bulgarian tertiary centre NSTEMI patient population, and its effect on the immediate and extended prognosis of the patients. Methods: We performed ambispective analysis of 138 consecutive patients with NSTEMI, and anaemia was defi ned as haemoglobin at admission below 120 g/L for females and below 130 g/L for males. Results: There was no signifi cant difference in the frequencies of standard risk factors between patients with and without anaemia. Anaemic patients tended to be older, with lower body mass index and worse kidney function. Patients with baseline anaemia tended to have higher GRACE risk scores and a larger size of the realised myocardial infarction as judged by maximal reached troponin I. There was no signifi cant difference in interventional treatment in both groups. Median hospital stay was signifi cantly longer in anaemic patients and was marked by more complications. Despite a lack of increase in inhospital bleeding and no difference in treatment with oral antiaggregants, patients with anaemia received haemotransfusion treatment more often. Mortality rate was higher in anaemic patients both during the index hospitalization and during the follow up. Conclusion: Anaemia at admission is associated with an increased risk of both in hospital cardiovascular complications and after dehospitalisation all-cause mortality in patients with NSTEMI and should be considered as an additional risk factor in the global risk assessment of patients.
Myocardial infarction-related ventricular arrhythmias
Authors: Stoyanov M. , Shalganov T.
Published: April 2023

Ventricular arrhythmias are among the most serious complications of myocardial infarction that defi ne not only increased morbidity and mortality, but also signifi cantly impaired quality of life. The pathogenesis of ventricular arrhythmias that arise during and after myocardial infarction is a combination of various triggering and modulating factors. We present a summary of the main structural and functional changes that occur with myocardial ischemia and create substrate for ventricular arrhythmias. The electrophysiological mechanisms underlying infarction-related ventricular arrhythmias are reviewed, as well as the most common pharmacological and non-pharmacological treatment’s strategies.
Aryalidonta itishreea, a new genus and species of Thoradontini (Orthoptera, Tetrigidae) from Nepal honors the Emperor of Laughter
Authors: Subedi Madan , Kasalo Niko
Published: April 2023

Aryal’s Ten Avatar Groundhopper, Aryalidonta itishreeagen. et sp. nov., named in honor of the late Bhairav Aryal, an iconic Nepali satirist, is a new genus and species of Tetrigidae described as a part of the tribe Thoradontini. The species is native to Nepal, a country with a rich tetrigid fauna in need of taxonomic revisions. This monotypic genus can be easily separated from other Thoradontini genera by its enlarged proximal halves of middle femora, a peculiar lateral lobe morphology (small caudal protrusion in its caudal part and a sharp lateral tip), a triangular, anteriorly narrowing vertex, and by its unique head morphology. The species was observed in its natural habitat. It was found to harbor many color variations that are cryptic in nature. It feeds on detritus, algae, lichen, and moss. Specimens heavily infested by mites were found, as well as those in interaction with wasps (possibly Eulophidae), but the nature of the latter could not be determined.
The credibility of newscasts in public service media in Spain
Authors: Soengas-Pérez Xosé , Rodríguez-Castro Marta , Campos-Freire Francisco
Published: April 2023

The audiences of generalist television's newscasts reflect that the viewers’ interests and loyalties are constantly changing. Research shows that several elements influence the success of programs and formats, but in this paper, we draw attention to the factors that determine the credibility of newscasts. We also want to know how pluralism is safeguarded in newscasts, as we consider that credibility and pluralism are two intertwined values that influence one another. As credibility is a subjective value, it is required to find new information criteria that is suitable and of the utmost rigor. The main aim is to delve into whether there is a consensus on the basic parameters for the definition, identification, and assessment of credibility of nationwide public service media in Spain. Moreover, we are also interested in whether audience figures can be used to determine the degree of trust of newscasts. The analysis brings forward the observations of researchers, scholars and media professionals that offer a vision on the different approaches that integrate the multiple aspects affecting news consumption and interpretation. We conclude that credibility is a concept composed of multidimensional components, resulting from a process where different filters condition fact perception. That is why a story can have different meanings, related to the different point of views of citizens.

Las audiencias de los informativos de las televisiones generalistas reflejan que el interés y la fidelidad de los espectadores cambian constantemente. Numerosas investigaciones demuestran que existen elementos que intervienen en el éxito de programas y formatos, pero aquí analizamos qué factores determinan la credibilidad de los informativos. Y también queremos conocer cómo se garantiza el pluralismo en los telediarios, porque la credibilidad y el pluralismo son valores que están relacionados entre sí y se condicionan mutuamente. Como la credibilidad es un valor subjetivo, es necesario buscar criterios informativos que permitan analizarla con rigor. El objetivo principal es averiguar si existe un consenso sobre los parámetros que sirven para definir, identificar y valorar la credibilidad en la televisión pública estatal en España. Además, interesa saber si los índices de audiencia sirven para determinar el grado de confianza en los informativos. Aquí aportamos las observaciones de investigadores, expertos académicos y profesionales, que ofrecen una visión de las diferentes perspectivas que integran los múltiples aspectos que condicionan la lectura y la interpretación de las noticias. Una conclusión transversal que se extrae de esta investigación es que la credibilidad es un concepto con componentes multidimensionales, fruto de un proceso en el que intervienen varios filtros que condicionan la percepción de los hechos. Por eso un relato puede tener múltiples significados, que se corresponden con los diferentes puntos de vista de los ciudadanos.
The four P's on the Internet: Pornography, plagiarism, piracy and permission
Authors: Cuervo-Sánchez Sandra Liliana , Etxague Itxaro
Published: April 2023

Access to youth culture by adolescents has changed as new communication technologies have found new ways of offering media content to viewers. Adolescents today access more content more frequently. However, the greater their exposure, the higher the likelihood of this leading to risk behaviors such as access to pornography, plagiarism, piracy and copyright violation. The aim of the present study is, therefore, to determine the frequency of these risk behaviors linked to the Internet content accessed and downloaded by minors, analyzing this variable in accordance with gender, age and context (Spain, Italy and Greece). We analyzed the responses provided by 2,529 adolescents (1,264 girls/1,262 boys) aged between 10 and 17 years from Spain, Italy and Greece. In general, adolescent boys, especially those aged 16 and 17 years, reported engaging more frequently in risk behaviors, particularly in reference to accessing youth culture content. Likewise, in terms of context, the highest means were observed among participants from Attica (Greece) and the Madrid Region (Spain), whereas the lowest means were observed in the Marche Region (Italy) and Navarre (Spain). The results revealed statistically significant differences in terms of gender, age and context. Thereby, they highlight the importance of focusing on media education from a gender perspective.

El acceso a la cultura juvenil por parte de los adolescentes se ha transformado en la medida en que las nuevas tecnologías en comunicación han venido introduciendo cambios en la manera de ofrecer los contenidos mediáticos. Los adolescentes acceden a más contenido y con mayor frecuencia. Sin embargo, a mayor exposición, mayores posibilidades de acciones de riesgo, como acceso a pornografía, plagio, piratería y omisión de los derechos de autor. El objetivo de este trabajo es determinar la frecuencia de estas acciones de riesgo referentes a los contenidos a los que acceden los menores y a las descargas realizadas en Internet analizando dicha frecuencia según el género, la edad y el contexto (España, Italia y Grecia). Para ello, se analizaron las respuestas de 2.529 adolescentes (1.264 chicas/1.262 chicos) de entre 10 y 17 años de España, Italia y Grecia. A nivel general, los chicos manifiestan realizar con mayor frecuencia acciones de riesgo, especialmente en referencia al acceso de contenidos de cultura juvenil, y, sobre todo, entre los 16 y 17 años. Respecto al contexto, la media más alta la presentan los participantes de Attica (Grecia) y de la Comunidad de Madrid (España), mientras que la más baja la presentan los de la Región de Marche (Italia) y Navarra (España). Los resultados indican que las diferencias en cuanto al género, a la edad y al contexto son estadísticamente significativos. Así, se resalta la importancia de trabajar en la educación en medios de comunicación desde una perspectiva de género.
The COVID-19 vaccine on Facebook: A study of emotions expressed by the Brazilian public
Authors: Fernandes-de-Oliveira Geilson , Massarani Luisa , Oliveira Thaiane , Scalfi Graziele , Alves-dos-Santos-Junior Marcelo
Published: April 2023

Vaccines are an essential public health resource for disease containment and reduction of associated mortality rates. With the emergence of COVID-19, public debates on the themes of vaccines and vaccination processes became important topics on diverse media and social networking platforms. In this article, our objective was to identify and reflect on the emotions evoked in the Brazilian public with respect to the COVID-19 vaccine during 2020 and 2021 on Facebook. To achieve this, we used the Crowdtangle graphical interface to extract complete copies of posts made by public Facebook profiles during this timeframe, from which a random sample of 1,067 posts was selected for analysis. Identification of emotions was performed using the Human-Machine Interaction Network on Emotion (HUMAINE) descriptors as a baseline reference. Emotions were then grouped into categories following Core Affect Model guidelines. Data analysis and interpretation indicated a prevalence of positive emotions such as trust, interest, and hope directed toward vaccines in the Brazilian domestic scenario. Negative emotions such as worry and disapproval were also expressed, albeit in reference to contextual issues (for example, the spread of COVID-19, delays in vaccine access, and the emergence of new variants) and public figures, such as the President of Brazil.

Las vacunas son un recurso de salud pública esencial para la contención de enfermedades y la reducción de las tasas de mortalidad asociadas. Con la aparición de la COVID-19, los debates públicos sobre los temas de las vacunas y los procesos de vacunación se convirtieron en temas importantes en diversos medios y plataformas de redes sociales. En este artículo, nuestro objetivo fue identificar y reflexionar sobre las emociones evocadas en el público brasileño con respecto a la vacuna COVID-19 durante 2020 y 2021 en Facebook. Para lograr esto, utilizamos la interfaz gráfica de Crowdtangle para extraer copias completas de las publicaciones realizadas por los perfiles públicos de Facebook durante este período de tiempo, de las cuales se seleccionó para el análisis una muestra aleatoria de 1.067 publicaciones. La identificación de las emociones se realizó utilizando los descriptores de Red de Interacción Hombre-Máquina en la Emoción (Human-Machine Interaction Network on Emotion, HUMAINE) como referencia. Luego, las emociones se agruparon en categorías siguiendo el Modelo de Afecto Central (Core Affect Model). El análisis y la interpretación de los datos indicaron una prevalencia de emociones positivas relacionadas a las vacunas, como confianza, interés y esperanza, en el escenario doméstico brasileño. También se expresaron emociones negativas como preocupación y desaprobación, aunque en referencia a cuestiones contextuales (por ejemplo, la propagación de COVID-19, retrasos en el acceso a la vacuna y la aparición de nuevas variantes) y figuras públicas, como el presidente de Brasil.
Experimental evaluation of lime spray drying for SO2 absorption
Authors: Koech Lawrence , Rutto Hilary , Seodigeng Tumisang
Published: April 2023

This paper presents the findings of an experimental investigation on the performance of a laboratory-scale spray dryer involving flue gas desulfurization. Using commercial hydrated lime as a sorbent, a systematic set of experiments were performed to evaluate SO2 absorption capacity of the spray dryer. The experimentation involved accurate measurement of the spray drying characteristics, such as temperature and SO2 concentration along the spray chamber, by varying the input and output variables. Tests were done to investigate the effects of spray characteristics, i.e., inlet gas phase temperature (120–180 ℃) and calcium-to-sulfur ratio (1–2.5), on SO2 removal efficiency. The performance of the spray dryer was further evaluated based on the degree of conversion of calcium (sorbent utilization) after SO2 absorption. Results indicated an increase in SO2 removal efficiency by increasing the stoichiometric ratio and decreasing the temperature. Absorption efficiency of SO2 beyond 90% was achieved at a stoichiometric ratio of 2.5. A high degree of conversion of calcium was realized at low stoichiometric ratios, with a maximum utilization of 94% obtained at a stoichiometric ratio of 1.5. The analysis of the final desulfurization product revealed the presence of sulfite with better conversion achieved at a stoichiometric molar ratio of 1.5. A significant amount of unreacted sorbent (63.43%) was observed at a stoichiometric ratio of 2, while samples collected at a stoichiometric ratio of 1.5 had the lowest concentration of unreacted Ca[OH]2 (41.23%).
The effects of cross-diffusion and logistic source on the boundedness of solutions to a pursuit-evasion model
Authors: Wang Chang-Jian , Zheng Zi-Han
Published: April 2023

We study the following quasilinear pursuit-evasion model:

   \begin{document}$ \begin{equation*} \left\{ \begin{array}{ll} u_{t} = \Delta u-\chi\nabla \cdot (u(u+1)^{\alpha}\nabla w)+u(\lambda_{1}-\mu_{1}u^{r_{1}-1}+ av),\ &\ \ x\in \Omega, \ t>0,\\[2.5mm] v_{t} = \Delta v+\xi\nabla \cdot(v(v+1)^{\beta}\nabla z)+v(\lambda_{2}-\mu_{2}v^{r_{2}-1}-bu), \ &\ \ x\in \Omega, \ t>0,\\[2.5mm] 0 = \Delta w-w+v, \ &\ \ x\in \Omega, \ t>0 ,\\[2.5mm] 0 = \Delta z-z+u,\ &\ \ x\in \Omega, \ t>0 , \end{array} \right. \end{equation*} $\end{document}

in a smooth and bounded domain $ \Omega\subset\mathbb{R}^{n}(n\geq 1), $ where $ a, b, \chi, \xi, \lambda_{1}, \lambda_{2}, \mu_{1}, \mu_{2} > 0, $ $ \alpha, \beta \in\mathbb{R}, $ and $ r_{1}, r_{2} > 1. $ When $ r_{1} > \max\{1, 1+\alpha\}, r_{2} > \max\{1, 1+\beta\}, $ it has been proved that if $ \min\{(r_{1}-1)(r_{2}-\beta-1), (r_{1}-\alpha-1)(r_{2}-\beta-1)\} > \frac{(n-2)_{+}}{n}, $ then for some suitable nonnegative initial data $ u_{0} $ and $ v_{0}, $ the system admits a unique globally classical solution which is bounded in $ \Omega\times(0, \infty) $.
Numerical simulation scheme of jointed rock masses using UAV photogrammetry and a disk-based discontinuous deformation analysis model
Authors: Dai Quan , Zhao Biao , Wang Shuguang , Huang Dongliang , Jin Changrui
Published: April 2023

The use of unmanned aerial vehicles (UAVs) for photogrammetry allows the rapid acquisition of high-resolution images of geological masses in complex landforms. However, effective analysis of the acquired image information remains a key research issue. At K158 + 837 on the Chongqing-Huaihua Railway, Baima jointed rock masses were reconstructed with high accuracy using UAV close-range photogrammetry technology, and rock discontinuities were extracted from the projected image. The proposed modeling algorithm for jointed rock masses enables the preprocessing of two-dimensional jointed rock mass slopes. Numerical simulations using the disk-based discontinuous deformation analysis method show that the discontinuity network formed by initial cutting significantly affects the subsequent crack development. Meanwhile, simulation results under different scenarios indicate the importance of the pre-reinforcement measures applied to unstable rock masses. The workflow developed based on these results can serve as a reference for the comprehensive acquisition, recognition and numerical modeling analysis of similar jointed rock masses.
A data-driven on-site injury severity assessment model for car-to-electric-bicycle collisions based on positional relationship and random forest
Authors: Yu Ye , Liu Zhiyuan
Published: April 2023

Vulnerable road users (VRUs) are usually more susceptible to fatal injuries. Accurate and rapid assessment of VRU injury severity at the accident scene can provide timely support for decision-making in emergency response. However, evaluating VRU injury severity at the accident scene usually requires medical knowledge and medical devices. Few studies have explored the possibility of using on-site positional relationship to assess injury severity, which could provide a new perspective for on-site transportation professionals to assess accident severity. This study proposes a data-driven on-site injury severity assessment model for car-to-electric-bicycle accidents based on the relationship between the final resting positions of the car, electric bicycle and cyclist at the accident scene. Random forest is employed to learn the accident features from the at-scene positional relationship among accident participants, by which injury severity of the cyclist is assessed. Conditional permutation importance, which can account for correlation among predictor variables, is adopted to reflect the importance of predictor variables more accurately. The proposed model is demonstrated using simulated car-to-electric-bicycle collision data. The results show that the proposed model has good performance in terms of overall accuracy and is balanced in recognizing both fatal and non-fatal accidents. Model performance under partial information confirms that the position information of the electric bicycle is more important than the position information of the cyclist in assessing injury severity.
Traditional Music and Tourism Identity in Cyprus
Authors: Georgiou Stalo
Published: April 2023

Music provides an important and emotional narrative for tourists as an expression of culture, a form of heritage, and a significant place. Indeed, it is becoming increasingly difficult to imagine tourism in silence. Music defines and transcends the boundaries of destinations, while emphasizing and even challenging the concepts of tradition and helping to define the identity of visitors. Traditional music is part of the identity of each region and a global artistic language, while its wide appeal enables it to nurture the richest dialogues between different cultures. As a symbol of cultural identity in relation to the past, traditional music is used by many cultural groups and individuals, including nation states, for political empowerment and cultural diplomacy. The cultural tourist identity of a country includes traditional music, traditional dances, improvised street entertainment, tours in concerts, watching music festivals; these are what accompany the visitor-tourist.
Using the Psycho-Sociocultural Framework to Create a Campus Climate That Acknowledges and Supports the Role of Basic Needs in Student Success
Authors: Duran Nelida , King Kristin , Garcia-Torres Rosalia , Spratt Danielle , Sawyer Mirna , Duran Armando
Published: April 2023

Across Hispanic-serving institutions and minority-serving institutions, efforts to increase student retention and degree completion, especially among first generation and low-income students, are being implemented. However, the lack of awareness related to students' resilience and efforts to fulfill their basic needs and subsequent lack of support in helping students leverage their strengths and navigate points of services on campus undercut the colleges' efforts to increase retention and graduation rates. Administrators, faculty, and staff need to work together to transform the institutional structures to improve the experiences and outcomes of all students.
Chasing the “American Dream”
Authors: Rousseau Jane
Published: April 2023

This chapter describes a participatory action research (PAR) project involving food and housing (FHI) insecure students from impacted communities in the California Central Valley who engage in research, action, and planning to address issues that impede their ability to succeed academically. FHI students completed research and are engaged in action to challenge the California State University, Stanislaus community to increase awareness of unfair systemic conditions that contribute to student FHI and to better understand and respond to the stigma and isolation students with marginalized identities experience. Students have also begun to engage in program-level planning and decision-making processes that impact the availability and delivery of resources for FHI students at CSU Stanislaus. This PAR project represents an ongoing (four year) effort and commitment by students who experience FHI, Faculty and Student Affairs professionals to work collaboratively to implement recommendations and take meaningful action that emerged from this participatory action research study.
Influencing Perceptions Through Storytelling
Authors: Gayle Zaid , Zimet Mira
Published: April 2023

This chapter explores a holistic storytelling approach used to influence a community's perceptions on foster care. Over the past 25 years, Peace4Kids, a non-profit organization serving youth in foster care, has engaged in a radical movement to understand and document the assets and strengths of youth who have been impacted by child welfare systems. The authors highlight how sharing these stories has informed narrative, policy, and even the built environment around you. By documenting the compounding effects of the foster care experience, along with the public's perceptions of youth in foster care, these explorations can be used as a vehicle for positive change. The contributing authors provide a unique perspective on this organization's approach: one author, Zaid Gayle, is the Executive Director of Peace4Kids and serves as Vice Chair for the Los Angeles County Commission for Children and Families; the second author, Mira Zimet, is a foster parent and documentary filmmaker who has traveled the country capturing digital stories of adults with lived foster care experiences through The Storyboard Project.
Current Landscape of IFN-λ: Induction, Inhibition, and Potential Clinical Applications to Treat Respiratory Viral Infections
Authors: Martínez-Espinoza Iván , Guerrero-Plata Antonieta
Published: April 2023

IFN-λ or type III IFN is an important mediator of antiviral response. Several respiratory viruses induce the production of IFN-λ during their course of infection. However, they have also developed intricate mechanisms to inhibit its expression and activity. Despite a considerable amount of research on the regulatory mechanisms of respiratory viruses on the IFN-λ response, little is still known about the effect of this cytokine on immune cells and the antiviral effects of all IFN-λ isoforms, and a better understanding of the detrimental effects of IFN-λ treatment is required. Here we highlight the relevance of IFN-λ as an antiviral cytokine in the respiratory tract. Data from studies in vitro, ex vivo, experimental animal models, and ongoing clinical trials emphasize the therapeutic opportunity that IFN-λ represents to treat and prevent different types of respiratory viral infections.
Compensatory Kinetics During the Side-Hop Test in Individuals With Chronic Ankle Instability
Authors: Ono Kyoya , Yoshida Takuya , Ota Kazuki , Tanigawa Satoru
Published: April 2023

Context

Individuals with chronic ankle instability (CAI) exhibit altered movement strategies during side-cutting tasks. However, no researchers have assessed how altered movement strategies affect cutting performance.

Objective

To investigate compensatory strategies in the side-hop test (SHT), with a focus on the entire lower extremity, among individuals with CAI.

Design

Cross-sectional study.

Setting

Laboratory.

Patients or Other Participants

A total of 40 male soccer players comprising a CAI group (n = 20; age = 20.35 ± 1.15 years, height = 173.95 ± 6.07 cm, mass = 68.09 ± 6.73 kg) and a control group (n = 20; age = 20.45 ± 1.50 years, height = 172.39 ± 4.39 cm, mass = 67.16 ± 4.87 kg).

Intervention(s)

Participants performed 3 successful SHT trials.

Main Outcome Measure(s)

We calculated SHT time, torque, and torque power in the ankle, knee, and hip joints during the SHT using motion-capture cameras and force plates. Confidence intervals for each group that did not overlap by >3 points consecutively in the time series data indicated a difference between groups.

Results

Compared with the control group, the CAI group showed (1) no delayed SHT time; (2) lower ankle-inversion torque (range = 0.11–0.13 N·m/kg) and higher hip-extension (range = 0.18–0.72 N·m/kg) and -abduction torque (0.26 N·m/kg); (3) less concentric power in ankle dorsiflexion-plantar flexion (0.18 W/kg) and inversion-eversion (0.40 W/kg), more concentric power in hip flexion-extension (0.73 W/kg), and more eccentric power in knee varus-valgus (0.27 W/kg).

Conclusions

Individuals with CAI were likely to rely on hip-joint function to compensate for ankle instability and demonstrated no differences in SHT time compared with the control group. Therefore, the movement strategies of individuals with CAI could differ from those of individuals without CAI, even if SHT time is not different.
Models of Video Feedback for Youth Athletes Performing an American Football Tackle
Authors: Schussler Eric , Jagacinski Richard J. , Chaudhari Ajit , Buford John A. , Onate James A.
Published: April 2023

Context

Video feedback is an expeditious method for improving athlete safety when performing activities with an inherent risk of injury. Providing appropriate and validated feedback during tackling training in American football may be a mechanism for athletes to learn safe tackling performance.

Objective

To determine the effect of video feedback in the instruction of tackling form.

Design

Controlled laboratory study.

Setting

Laboratory.

Patients or Other Participants

A total of 32 youth football athletes (28 boys, 4 girls; age = 11.8 ± 0.8 years) participated in 1 day of training. Of those, 14 participants completed 2 additional days of training and a 48-hour retention and transfer test.

Intervention(s)

Video feedback using self as model, expert as model, combined self and expert model, and oral feedback to promote safe tackling performance in a laboratory environment.

Main Outcome Measure(s)

Shoulder extension, cervical extension, trunk angle, pelvis height, and step length by training block and over time.

Results

For the 1-day training group, main effects for time were observed for shoulder extension (P < .01), cervical extension (P = .01), pelvis height (P < .01), and step length (P < .01), with better performance for pelvis height and step length after combined feedback. For the 3-day training group, main effects of time were identified in pelvis height (P < .01) and step length (P < .01), with combined feedback showing better performance than other methods in shoulder extension and pelvis height. Combined feedback resulted in better performance compared with its component parts and oral feedback alone. In the combined model, participants viewed both their performance and the expert model, enabling them to see the difference between current and required performance.

Conclusions

Combined feedback may be superior to other forms of feedback in improving movement performance. This effect can be generalized across disciplines that provide instruction and feedback in movement.
Two-six Hours is the Optimal Timing of Intracytoplasmic Sperm Injection After Oocyte Pickup
Authors: Singh Neeta , Malhotra Neena , Mahey Reeta , Patel Garima , Saini Monika
Published: April 2023

Background:

Optimal incubation period for oocyte competence remains contentious despite intracytoplasmic sperm injection(ICSI) being in practice for 34 years. Dilemma exists as the current literature favors both early and delayed denudation with equivocal results. With ever-rising demand for the procedure this conundrum continues to plague the clinical outcomes.

Aims:

This study attempts to provide a consensus regarding optimal time duration required for incubating the oocytes after oocyte pickup(OPU) and time to perform ICSI.

Settings and Design:

A retrospective study in a tertiary centre.

Materials and Methods:

A retrospective 10-year cohort study including 726 ICSI cycles was conducted in a single tertiary care infertility centre. All cycles comprised at least one metaphase-II oocyte injected with one good quality sperm followed by fresh embryo transfer. The cohort was broadly divided into two groups: (a) Group 1: OPU-ICSI <4 hours(n=466) and (b) Group 2: OPU-ICSI>4 hours(n=260).

Statistical Analysis Used:

The fertilization(FR) and clinical pregnancy rates(CPR) were compared using the Pearson Chi-square test. The OPU-ICSI interval were subdivided into one-hourly intervals and CPR was compared after adjustment for multiple comparisons by holm method.

Results:

The FR and CPR were similar between Group 1 and Group 2(p>0.05). Comparing CPR for each one-hourly OPU-ICSI interval revealed no significant clinical difference (p>0.05) amongst one another, however, the CPR was maximum for 2-3 hours as the OPU-ICSI interval.

Conclusion:

With no significant clinical difference amongst various temporal groups, this study advocates and reinstates 2-6 hours as the optimal timing for ICSI after the OPU. This will also translate into better time management for both embryologists and clinicians and help them prioritise the laboratory workflow.
The Impact of High Circulating Anti-Müllerian Hormone on Endometrial Thickness and Outcome of Assisted Reproductive Technology in Women with Polycystic Ovarian Syndrome
Authors: Mohamed Ahmed Aboelfadle , Al-Hussaini Tarek K. , Hussein Reda S. , Abdallah Karim S. , Amer Saad A.
Published: April 2023

Background:

Elevated circulating anti-Müllerian hormone (AMH) in women with the polycystic ovarian syndrome (PCOS) has been found to have a detrimental effect on endometrial function. This may adversely affect the outcome of in vitro fertilisation (IVF) in PCOS women.

Aims:

To investigate the impact of high serum AMH concentrations on endometrial thickness (ET) and the outcome of IVF in women with PCOS.

Settings and Design:

This retrospective cohort study included all PCOS women who underwent fresh IVF\intracytoplasmic sperm injection cycles between January 2016 and December 2021 in one major IVF centre.

Materials and Methods:

PCOS diagnosis was based on Rotterdam criteria, and participants were identified from centre database. All women received antagonist protocol. Primary outcomes were trigger-day ET and live birth rate (LBR). Circulating AMH was correlated with ET and ovarian response.

Statistical Analysis Used:

AMH levels were compared between women with and without live birth. ET and LBRs were compared between women with AMH <7.0 ng/ml versus those with AMH ≥7.0 ng/ml.

Results:

The study included 102 PCOS women, of which six were excluded due to poor response (n = 4), hyperresponse (n = 1) or fertilisation failure (n = 1). Of the remaining 96 women, 42 (43.8%) achieved a live birth. There was no statistically significant (P > 0.05) correlation between AMH and ET. Mean ± standard deviation AMH concentration was not significantly (P > 0.05) different between women with live birth (6.5 ± 3.4 ng/ml) and those without (6.5 ± 2.4 ng/ml). High AMH positively correlated with the number of oocytes retrieved, metaphase II oocytes and embryos (P = 0.003, 0.006 and 0.006, respectively). There was no statistically significant (P > 0.05) difference in ET or LBR between women with AMH <7.0 ng/ml (n = 72; ET, 10.7 ± 1.8 mm; LBR, 45.8% [33/72] versus those with AMH ≥7.0 ng/ml (n = 24; ET, 10.8 ± 1.7 mm; LBR, 37.5% [9/24]).

Conclusions:

High circulating AMH in PCOS women does not seem to negatively affect ET or LBRs during assisted reproductive technology.
Effect of High dose Gonadotropin Stimulation on Follicular Atresia through Light Chain 3B and Voltage Dependent Anion Channel 2
Authors: Özbilgin Mahmut Kemal , Öztatlıcı Mustafa , Üçöz Meltem
Published: April 2023

Background:

Follicle development takes place under the control of hormonal and environmental stimuli. It suggested that to improve in vitro fertilisation outcomes in poor responders increasing gonadotropin doses be used. Excessive gonadotropin leads to atresia and impairs follicular development, but the molecular mechanisms of follicular atresia remain largely unknown. Recently, it was suggested that autophagy may be an alternative mechanism involved in follicle depletion.

Aims:

In this study, we aimed to clarify the role of autophagic markers such as light chain (LC) 3B and voltage dependent anion channel 2 (VDAC2) in follicular atresia using the high dose gonadotropin stimulation.

Settings and Design:

The female 24 BALB/c mice were employed in the present study under the Committee for the Purpose of Control and Supervision of Experiments on Animals guidelines with ethical clearance from the institutional ethical committee. These mice were categorised into four groups, with six rats in each as control and test animals.

Materials and Methods:

Group 1 (control): no action will be taken. Group 2 (sham): only saline will be applied. Group 3: low-dose gonadotropin Pregnant mare's serum gonadotropin (PMSG) + human chorionic gonadotropin (HCG) will be applied. Group 4: high-dose gonadotropin + HCG will be applied. The animals were sacrificed 48 h after the last injection. For all group samples, both protein and mRNAs of the LC3B and VDAC2 were examined by immunohistochemical and reverse transcription-polymerase chain reaction techniques.

Statistical Analysis Used:

All variables were analysed using GraphPad Prism 8. Kruskal–Wallis t-test and Mann–Whitney U test were used to compare immunohistochemical results; in addition to this, parametric one-way ANOVA test and Shapiro–Wilk test were applied for quantitative polymerase chain reaction statistics.

Results:

An increased number of atretic follicles were observed in the high-dose gonadotropin + HCG group. LC3B immunoreactivity of the atretic secondary follicles in the high-dose group is higher than in other groups. The expression of VDAC2 protein in the secondary and Graafian follicles and also VDAC2 mRNA in the ovary were more highly expressed in the control and sham groups. The decrease in VDAC2 mRNA level and immunohistochemical expression was remarkable in the low-dose and high-dose follicle-stimulating hormone groups compared to the control and sham groups.

Conclusion:

In this study, the increased LC3B and decreased VDAC2 expression, which are autophagy markers, were observed in both the gonadotropins groups, so we suggested that high doses of gonadotropins may cause ovarian atresia.
High-Risk Genotypes Associated with Poor Response to Controlled Ovarian Stimulation in Indian Women
Authors: Udumudi Anuradha , Lava K. Chaitra , Hegde Vandana
Published: April 2023

Background:

Infertility is a global burden and has become exceedingly common in the preceding years; controlled ovarian stimulation (COS) is a pre-requisite for couples opting to conceive via in vitro fertilisation (IVF). Based on the number of oocytes retrieved upon COS, a patient may be classified as a good responder or poor responder. The genetic aspect of response to COS has not been elucidated in the Indian population.

Aims:

This study aimed to establish a genomic basis for COS in IVF in the Indian population and to understand its predictive value.

Settings and Design:

The patient samples were collected at both Hegde Fertility Centre and GeneTech laboratory. The test was carried out at GeneTech, a diagnostic research laboratory based in Hyderabad, India. Patients with infertility without any history of polycystic ovary syndrome and hypogonadotropic hypogonadism were included in the study. Detailed clinical, medical and family history was obtained from patients. The controls had no history of secondary infertility or pregnancy losses.

Materials and Methods:

A total of 312 females were included in the study comprising 212 women with infertility and 100 controls. Next-generation sequencing technology was employed to sequence multiple genes associated with response to COS.

Statistical Analysis Used:

Statistical analysis using odds ratio was carried out to understand the significance of the results obtained.

Results:

Strong association of c.146G>T of AMH, c.622-6C>T of AMHR2, c.453-397T>C and c.975G>C of ESR1, c.2039G>A of FSHR and c.161+4491T>C of LHCGR with infertility and response to COS was established. Further, combined risk analysis was carried out to establish a predictive risk factor for patients with a combination of the genotypes of interest and biochemical parameters commonly considered during IVF procedures.

Conclusion:

This study has enabled the identification of potential markers pertaining to response to COS in the Indian population.
El rumor, como herramienta de la comunicación política
Authors: Vargas Durán Johnny
Published: April 2023

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Radiografía de innovación de los PSM estatales de la península Ibérica: visión estratégica, tecnológica, y de captación de audiencias jóvenes en RTVE y RTP
Authors: Fieiras Ceide César Fieiras , Túñez López Miguel , Sousa Jorge Pedro
Published: April 2023

Introducción: La multiplicación de la oferta de contenidos audiovisuales de actualidad y entretenimiento en el renovado contexto digital motiva a las corporaciones de radiotelevisión pública a ejecutar e interiorizar procesos innovadores que les permita ser relevantes en la vida de las personas. Estos procesos no solo se limitan al desarrollo e integración de sofisticados prototipos tecnológicos, sino que se vinculan estrechamente con una filosofía de cambio constante y renovación de ideas y formas de pensar. En este proyecto de investigación se ofrece una radiografía completa de las propuestas innovadoras de los medios de servicio público estatales de la península ibérica, Radiotelevisión Española y Rádio e Televisão de Portugal, con un enfoque particular en el prisma estratégico, tecnológico y de captación de nuevas audiencias. Metodología. Para ello se realizan entrevistas en profundidad a los directores de los departamentos de innovación y tecnología de las corporaciones, así como a los responsables de sus principales proyectos de contenidos juveniles, PlayZ y RTP Arena, respectivamente, lo que se complementa con una revisión de los productos online y redes sociales de ambos grupos. Resultados. Se identifica que la propuesta de RTVE tiene un mayor componente disruptivo, con iniciativas destinadas a optimizar la experiencia de usuario, el Mobile Firts o tecnologías como la IA, 5G o 4K; mientras que el enfoque de la RTP tiene un mayor corte cultural, tratando de renovar el lenguaje y rutinas de creación de sus contenidos tradicionales y nativos. Conclusiones. Las estrategias de innovación de ambas corporaciones parten de un objetivo central de actualización, con cautelosas aproximaciones a las nuevas tecnologías. La reciente creación de un departamento burbuja en la RTP se contrapone a la realidad de RTVE, con la intención de difuminar los límites de esta sección en su estructura para alcanzar una innovación plenamente transversal.