bluuebunny/crossref_metadata_2025_split huggingface dataset:
Doped polymethyl methacrylate (PMMA) as proton exchange membrane for microbial fuel cell
Authors: Srivastava Richa , Gaurav Kumar 
Published: March 2024

Abstract
The urgent need for clean and affordable energy solutions to combat energy scarcity and global warming is paramount. Fuel cells, particularly microbial fuel cells (MFCs), offer a promising avenue for sustainable energy production. Proton exchange membranes (PEMs) are critical components in MFCs, but the high cost of Nafion, the gold standard PEM, poses a significant challenge. In this pioneering study, we tried to fabricate PEMs by crafting them from polymethyl methacrylate (PMMA), coupled with innovative combinations of potassium thiocyanate (KSCN) and citric acid. The synthesized membranes were studied for their water uptake capacity, ion exchange capacity and potential applications in MFC. The maximum remarkable water uptake capacities of up to 70 % for 10 % KSCN and 64 % for 7.5 % citric acid compositions was observed. Furthermore, these PEMs exhibit ion exchange capacities (IEC) ranging from 0.024 to an impressive 0.69 meq/gm, with the 7.5 % citric acid variant showcasing the highest IEC (0.69 meq/gm). The membranes having better IEC were applied to microbial fuel cell. This results in maximum power density of 50.03 μw/cm2, underscoring the tremendous potential these membranes hold as a cost-effective and environmentally friendly alternative to conventional PEMs in MFCs.
The Swedish version of the pain self-efficacy questionnaire short form, PSEQ-2SV: Cultural adaptation and psychometric evaluation in a population of patients with musculoskeletal disorders
Authors: Ekhammar Annika , Numanovic Patrik , Grimby-Ekman Anna , Larsson Maria E. H. 
Published: March 2024

Abstract

Objectives
Measuring pain self-efficacy is suggested as relevant in patients with musculoskeletal disorders (MSDs) in a primary care setting. However, there is no pain self-efficacy questionnaire (PSEQ) available in Swedish. The aim of this study was to translate and culturally adapt PSEQ-2 to Swedish and evaluate reliability and validity in a population of patients with MSDs.

Methods
A translation and cultural adaptation together with psychometric evaluation of reliability and validity were performed according to guidelines with three groups of participants with MSDs. First, a convenient sample of 25 individuals were interviewed in the translation process. Next, 61 participants completed the test–retest survey via social media or QR codes in waiting rooms in rehabilitation clinics. Finally, to evaluate construct validity questionnaires were obtained from 132 participants with MSDs in an ongoing randomized controlled trial.

Results
The Swedish version of PSEQ-2 showed adequate face and content validity. The results of 0.805 on Cohen’s weighted kappa indicate that the reliability of PSEQ-2SV in a group of adults with MSDs is on the border between substantial and almost perfect. The point estimate regarding relative rank variance, measuring the individual variation within the group, and relative concentration, the systematic change in how the assessments are concentrated on the scale’s categories, shows minor systematic differences and some random differences not neglectable. The construct validity of pre-defined hypotheses was met to some degree.

Conclusion
The PSEQ-2SV has been accurately linguistically translated and tested for reliability and validity, in a population of MSDs, and is deemed to be able to be used in the clinic and in research. As there were some concerns regarding measurement error and systematic bias, more research could be of value.
Relationship between perfectionism, overactivity, pain severity, and pain interference in individuals with chronic pain: A cross-lagged panel model analysis
Authors: Enomoto Kiyoka , Sasaki Jun 
Published: March 2024

Abstract

Objectives
Overactivity is a characteristic of individuals with chronic pain. Previous cross-sectional studies demonstrated a relationship between perfectionism and overactivity. Therefore, the present study used a longitudinal design to determine whether pain severity and pain interference were exacerbated by overactivity and whether overactivity was exacerbated by perfectionism.

Methods
Participants with chronic pain were recruited using crowdsourcing. The participants completed the questionnaires at three time points: T1, T2, and T3 (September, October, and November 2021, respectively). The questionnaire assessed overactivity, perfectionistic strivings, perfectionistic concerns, pain severity, and pain interference. We created cross-lagged panel models to examine the hypothesized relationships among pain, overactivity, and perfectionism.

Results
After excluding ineligible participants and invalid response sets, we analyzed the questionnaires completed by 666 participants at T1, 560 at T2, and 554 at T3. The average duration of chronic pain at T1 was 36.35 ± 53.53 months. Perfectionistic strivings were partially linked to overactivity, and pain interference was partially related to overactivity. Contrary to our expectations, overactivity did not predict pain severity or pain interference.

Conclusions
The hypotheses that perfectionism exacerbates overactivity and that overactivity exacerbates pain severity and pain interference were not supported. These results may have been affected by the quality of the assessment of overactivity. Therefore, further research with a refined evaluation of overactivity is required.
“I am something that you’ll never understand”
Authors: Holland L. 
Published: March 2024

Prince’s alter-ego Camille is an elusive character, not least because they never officially existed. Camille was an album created and test-pressed by Prince between September and November of 1986, which he planned to release without his name attached; all production, writing, and vocals were to be credited to the mysterious and fictional Camille. Though Prince abandoned the Camille album in November 1986, he continued to engage with the character for years afterward, composing more Camille songs, writing Camille into the original draft of Graffiti Bridge, and including Camille in the Lovesexy Tour booklet (1988-1989). Camille as a character is inherently liminal: they had no assigned gender, being referred to as he or she in different mediums; no corporeal body, as they existed only as a pitch-altered voice; and did not exist as an established character, because the Camille album was never officially released.
In this paper, I argue that Prince’s Camille exists as a trans* caricature, meaning the character inhabits multiple stereotypes attributed to trans people, specifically trans women and transfemmes. To do this, I delve into the construction of the character and compare their depiction to an historic trans* caricature, the character Alexina from Oscar Panizza’s short story, “A Scandal at the Convent” (1893), based on real-life White intersex person Herculine Barbin. I compare these characters to show how they were both constructed as trans* caricatures similarly but with crucial differences due to Prince’s and Camille’s Blackness. I argue then that in Camille we can situate an echo of Prince, an unmastered version who is predatory, animalistic, and inhabits transphobic stereotypes, and who, crucially, was then subsumed into Prince’s own canon. By understanding this construction of Camille, we can more fully understand the taboo ways in which Prince queered the boundaries of his performance, and of Black masculinity, throughout his career.
Iatrogenic Tracheal Rupture after Endotracheal Intubation: A Case Report
Authors: Kraleva Silvana , Trojikj Tatjana , Talevski Darko , Malefski Dola , Bozinovska Beaka Gordana 
Published: March 2024

Iatrogenic tracheal rupture is very rare condition and has a lot off causes (intubation, tracheostomy, bronchoscopy, esophagectomy), but orotracheal intubation is the most common. Diagnosis is based on the occurrence of symptoms that are not specific but highly suggestive: subcutaneous emphysema, respiratory insufficiency, pneumothorax, and hemoptysis. The appearance of subcutaneous emphysema as a first sign plays a main role for early diagnosis and rapid appropriate treatment. Diagnostic confirmation is possible by chest X-ray, thoracic computed tomography and bronchoscopy which confirmed the size and site of the lesion. Treatment can be conservative, in patients with small ruptures, less than 2 cm, and surgical in the majority of ruptures over 2 cm in length.
Our case report presents an iatrogenic post-intubation tracheal rupture treated conservatively. Our patient was a 71-year-old woman, admitted in our hospital with fracture of right humerus for elective surgery. Her medical history was only arterial hypertension. She underwent general anesthesia, intubated with flexible ET tube, positioned in beach-chair position after introduction, and no complication occurred during surgery. 18 hours after surgery, after severe coughing, she suddenly developed subcutaneous emphysema of the facial, neck and upper anterior chest. Tracheal rupture was confirmed with a thoracic computed tomography and tracheobronchial fiber endoscopy. It showed a posterior tracheal transmural rupture 1 cm long, located 4 cm above the carina, covered with small tissue that opened in inspirium. Conservative treatment with antibiotic cover was performed, and the patient was discharged home in good condition, fourteen days after the initial injury.
Post Varicella Necrotising Fasciitis Afflicting Upper Limb in Young Child: A Rare Case Report
Authors: Prabhu Swarup , Hussain Ayjaz , Gupta Tarun 
Published: March 2024

Necrotising fasciitis is a common surgical emergency. Risk factors include immunosuppression, type 2 diabetes mellitus, chronic diseases like cirrhosis of liver and chronic kidney disease, malignancies, intravenous drug use, obesity, and age more than 60 years. Our case is of a 14 years old boy who presented with necrotising fasciitis (NF) of right upper limb post varicella of 10 days duration. Prompt diagnosis with aggressive surgical debridement was lifesaving in this case. Early reconstruction with split skin grafting escalated recovery resulting in a fully functional limb without any residual deficit. This case is a rare example of post varicella NF in a young child without any co-morbidities. Majority such cases are encountered by a general surgeon in an emergency setting. Hence, this report sensitises and enlightens the first responders about the existence of this rare entity.
Impact of a Coordinated Sepsis Response on Time to Treatment in a Pediatric Emergency Department
Authors: Corboy Jaqueline , Denicolo Kimberly , Jones Roderick C. , Simon Norma-Jean E. , Adler Mark , Trainor Jennifer , Steinmann Rebecca , Jain Priya , Stephen Rebecca , Alpern Elizabeth 
Published: March 2024

BACKGROUND
Sepsis is responsible for 75 000 pediatric hospitalizations annually, with an associated mortality rate estimated between 11% and 19%. Evidence supports the use of timely fluid resuscitation and antibiotics to decrease morbidity and mortality. Our emergency department did not meet the timeliness goals for fluid and antibiotic administration suggested by the 2012 Surviving Sepsis Campaign.

METHODS
In November 2018, we implemented a sepsis response team utilizing a scripted communication tool and a dedicated sepsis supply cart to address timeliness barriers. Performance was evaluated using statistical process control charts. We conducted observations to evaluate adherence to the new process. Our aim was to meet the Surviving Sepsis Campaign’s timeliness goals for first fluid and antibiotic administration (20 and 60 minutes, respectively) within 8 months of our intervention.

RESULTS
We observed sustained decreases in mean time to fluids. We also observed a shift in the proportion of patients receiving fluids within 20 minutes. No shifts were observed for timely antibiotic administration.

CONCLUSIONS
The implementation of a dedicated emergency department sepsis response team with designated roles and responsibilities, directed communication, and easily accessible supplies can lead to improvements in the timeliness of fluid administration in the pediatric population.
Invertebrados (Echinodermata, Brachiopoda, Bryozoa, Cnidaria, Porifera) del Carbonífero de Sierra Santa Teresa, Sonora, México: Consideraciones paleoecológicas y paleogeográficas
Authors: Cuadros-Mendoza Iván Manuel , Buitrón-Sánchez Blanca Estela , Cuen-Romero Francisco Javier , Torres-Martínez Miguel Ángel , Caballero-Ochoa Andrea Alejandra 
Published: March 2024

Introducción: La Sierra Santa Teresa se encuentra a 20 km al sureste de Hermosillo en la región central del estado de Sonora, México. Los estratos sedimentarios corresponden principalmente a textura de piedra caliza, mudstone, wackestone y packstone del Paleozoico superior. La biota está representada por crinoideos de las morfoespecies Baryschyr anosus, Cyclocaudex insaturatus, Floricyclus angustimargo, Cyclocion distictus, Lamprosterigma erathense y Preptopremnum rugosum en asociación con algas, foraminíferos fusulínidos, esponjas coralinas (Chaetetes sp), corales solitarios (Lophophyllidium sp., Fomichevella sp.), briozoos fenestélidos (Archimedes stoyanowi) y braquiópodos (Antiquatonia sp.).
Objetivo: El objetivo principal de este estudio es dar a conocer la composición biótica de la Sierra Santa Teresa y sus consideraciones paleoecológicas y paleogeográficas.
Métodos: En este estudio se sintetiza la información sobre las principales taxas recolectadas en afloramientos del Carbonífero de la Sierra, Santa Teresa.
Resultados: La distribución de la biota, y particularmente de las morfoespecies de crinoideos, permitió hacer correlaciones paleobiogeográficas con otras localidades del Misisípico-Pensilvánico de México y de distintas regiones de los Estados Unidos de América, principalmente en Texas, Colorado, Illinois y Oklahoma, que se encontraban ubicadas al suroeste del Cratón norteamericano.
Conclusiones: Se considera que el paleoambiente inferido con base en los registros paleontológicos de la Sierra Santa Teresa se trataba de mares someros que permitieron el desarrollo de comunidades de crinoideos, así como otros invertebrados como esponjas coralinas, corales solitarios, briozoos fenestélidos y braquiópodos, con un rango estratigráfico del Misisípico Medio-Superior (Chesteriano) al Pensilvánico Medio (Desmoinesiano).
Abundancia, densidad y estructura de tallas de Mellitella stokesii (Echinolampadacea: Mellitidae) en playones del estero El Tamarindo, El Salvador
Authors: Ramos-Cáceres María Fernanda , Segovia-Prado Johanna Vanessa 
Published: March 2024

Introducción: Los equinoideos irregulares se caracterizan por tener una selección del sustrato en fondos blandos principalmente. En El Salvador se han registrado siete especies de equinoideos irregulares en las principales playas arenosas del país, M. stokesii es una de ellas.
Objetivo: Determinar la abundancia, densidad y estructura de tallas, en playones de la bocana del estero El Tamarindo, El Salvador. Métodos: La investigación se realizó en época seca en el oriente del país en playones del estero El Tamarindo que se caracteriza por presentar grandes extensiones de arena mezclada con materia orgánica. En cada sitio, se trazaron transectos en banda paralelos a la costa mediante 9 cuadrantes de 10 m2 separados entre sí por 10 m (área total de 90 m2), en donde se contabilizaron y midieron los individuos de M. stokesii que se encontraran dentro del área delimitada.
Resultados: Se contabilizaron 958 individuos de M. stokesii con una densidad total de 10.64 ± 13.22 ind/m2. El rango de tamaños fue de 1–6.5 cm. El hábitat se caracterizó por presentar arena con materia orgánica en los primeros mm del sustrato en compañía de otros invertebrados.
Conclusiones: La abundancia y densidad de M. stokesii es similar a la registrada en otros estudios de la región.
Analyzing morphometry among extant and extinct species: A case study of genus Agassizia (Spatangoida: Echinoidea)
Authors: Martinez-Melo Alejandra , Martin-Cao Romero Carolina , Galván-Villa Cristian Moisés , Sotelo-Casas Rosa Carmen 
Published: March 2024

Introduction: The genus Agassizia in Mexico is represented both in the fossil record with the species Agassizia regia† during the Miocene of Chiapas and in the extant species Agassizia excentrica on the Atlantic coast and Agassizia scrobiculata on the Pacific coast. Qualitative diagnosis and descriptions make it hard to distinguish morphological boundaries between species, especially in groups with fossils and recent representatives, increasing the level of complexity by having samples of disparate qualities and quantities.
Objective: We propose the use of little explored statistical methods in the comparison of paleontological and biological populations. This methodology allowed us to resolve issues of missing values in a morphometric data set for the genus Agassizia.
Methods: Using samples recently collected and specimens already housed in collections, we explore a routine of recovery of missing data MICE and the numerical and graphic analyses PERMANOVA, PCA, and SIMPER to compare morphometric parameters between these species for recognizing diagnostic characters.
Results: Our results show a clear morphological difference in the length of the ambulacrum II and the length and width of the periproct and peristome structures, these being greater in A. scrobiculata, with a consistent pattern in both population samples not previously described.
Conclusions: Quantitative morphometric comparisons can be an assertive and complementary tool to determine distinctive differentiation characteristics in species of the same genus. Comparative morphology reviews should be an ongoing exercise to keep taxonomic knowledge on both extinct and extant species up to date. Our research encourage the scientific community studying fossil populations to utilize quantitative and multivariate methods to strengthen their investigations.
Riddling Menus
Authors: Sigler Leehu , Cooke Nathalie 
Published: March 2024

The article looks at the phenomenon of the dinnertime "riddling competition" that, as attested in literature and customs have served as opportunity and script for wide participation in dinnertime con­versation. Riddles at dinner and during festive occasions are present throughout much of documented history. In China, riddling during the lantern festival goes back to at least the Six Dynasties period, spanning the third to sixth centuries. In Western culture, too, riddles appear at meals and other festive occasions since the Biblical story of Samson and the Philistines.
OCCURRENCE OF PM0.1 AND PM2.5 AT HIGH POLLUTING EVENT DAYS IN HANOI AND HEALTH IMPLICATION
Authors: Ly Thuy Bich , Vo Le Ha , Van Dieu Anh , Nguyen Thu Hien , Dao Duy Nam , Nghiem Trung Dung , Nguyen Quoc Dat 
Published: March 2024

High levels of fine (PM2.5) and ultrafine (PM0.1) particles in the atmosphere can cause adverse effects on the environment and human health. This study aims at determining the mass concentrations of PM and health risks on pollution event days (episodes) in Hanoi. Semi-daily samples (daytime and night-time) of PM2.5 and PM0.1 were collected at Hanoi University of Science and Technology, in December 2021. The daily PM2.5 concentrations were in the range of 42 – 204 µg/m3 (average of 123 µg/m3). Those of PM0.1 varied from 9 to 30 µg/m3 (average of 22 µg/m3). There is negligible change on daytime and night-time PM0.1 concentrations, whereas those levels of PM2.5 were remarkably different. PM2.5 daytime concentrations were in the range of 39 – 205 µg/m3 with an average of 107 µg/m3. The level ranges of night-time were slightly wider which varied from 39 to 230 µg/m3 (average of 132 µg/m3). A prolonged episode of PM2.5 (which is defined by the criterion of PM2.5 > 50 µg/m3) was found with an intensity of 26 days in December. During the pollution episode, the Monte Carlo simulation showed that respirable doses were the highest for the adult (above 21 years) for chronic effects, whereas the highest doses for acute were observed in the children (0-3 years), which has implications in the adverse health effects for sensitive groups. The sensitive analysis finds the concentration of PM to be the most influencing factor in inhalation dose estimation.
Development of mobile-based learning in Kapita Selekta Pendidikan courses
Authors: Nurdaiman N. , H Nurhikmah , Anwar Citra Rosalyn 
Published: March 2024

This research is development research that focuses on creating mobile learning-based learning media in education courses. This research aims to produce mobile learning-based learning media using the Smart Apps Creator (SAC) application that suits student needs and is valid and practical so students can learn anytime and anywhere. The research method used is Research and Development with the ADDIE development model, which consists of 5 stages: analysis, design, development, implementation, and evaluation. This research was conducted at the Educational Technology Study Program, Faculty of Education in Universitas Negeri Makassar. This research found that mobile learning-based learning media in capita selecta education courses were developed and were in the valid category; analysis of the level of practicality of lecturer and student responses was in the excellent category, so a value was obtained in the practical category. Research into developing mobile learning-based learning media in capita selecta education courses is expected to make it easier for students to learn independently. AbstrakPenelitian ini merupakan penelitian pengembangan yang berfokus pada pembuatan media pembelajaran berbasis mobile learning pada mata kuliah kapita selekta pendidikan. Penelitian ini bertujuan untuk menghasilkan media pembelajaran berbasis mobile learning dengan menggunakan aplikasi Smart Apps Creator (SAC) yang sesuai dengan kebutuhan mahasiswa yang valid dan praktis sehingga mahasiswa dapat belajar kapan saja dan di mana saja. Metode penelitian yang digunakan yaitu Research and Development dengan model pengembangan ADDIE yang terdiri dari 5 tahapan, yakni: analisis, desain, pengembangan, implementasi dan evaluasi. Penelitian ini dilaksanakan di Program Studi Teknologi Pendidikan Fakultas Ilmu Pendidikan Universitas Negeri Makassar. Berdasarkan penelitian tersebut diperoleh media pembelajaran berbasis mobile learning pada mata kuliah kapita selekta pendidikan yang dikembangkan dan berada pada kategori valid; analisis tingkat kepraktisan respons dosen dan mahasiswa berada pada kategori sangat baik, sehingga diperoleh nilai dengan kategori praktis. Penelitian pengembangan media pembelajaran berbasis mobile learning pada mata kuliah kapita selekta pendidikan diharapkan dapat memudahkan mahasiswa dalam belajar secara mandiri.Kata Kunci: Media pembelajaran; mobile learning; SAC: Smart Apss Creator