bluuebunny/crossref_metadata_2025_split huggingface dataset:
Baidu News and the return volatility of Chinese commodity futures: evidence for the sequential information arrival hypothesis
Authors: Zhao Ruwei , Xiong Xiong , Ma Junjun , Zhang Yuzhao , Zhang Yongjie 
Published: February 2025

Abstract
This study uses Baidu News data and introduces a novel proxy for the rate of information flow to examine its relationship with return volatility in Chinese commodity futures and to test two competing hypotheses. We examine the contemporaneous relationships using correlation coefficient analysis, and find apparent differences between the information flow-return volatility relationship and the information flow-trading volume relationship. The empirical evidence contradicts the mixture of distribution hypothesis (MDH) and suggests that the rate of information flow distinctly affects trading volume and volatility. We conducted linear and nonlinear Granger causality tests to explore the sequential information arrival hypothesis (SIAH). The empirical results prove that a lead-lag linear and nonlinear causality exists between the information flow and return volatility of commodity futures, which is consistent with SIAH. In other words, a partial equilibrium exists before reaching the ultimate equilibrium when the new information arrives in the market. Finally, these findings are robust to alternative measurement of return volatility and subperiod analysis. Our findings reject the MDH and support the SIAH in the context of Chinese commodity futures.
Assessment of sleep disorders and their short-term impact on cognitive and psychiatric outcome following ischemic strokes
Authors: Fayed Reda E. , Amer Reham A. , Badr Marwa Y. , Rabie Mohamed O. 
Published: February 2025

Abstract

Background
Sleep disorders are prevalent problems after stroke that can impair optimal stroke rehabilitation and functional recovery and may contribute to recurrent stroke. Post-stroke sleep disorders are risk factors for cognitive impairment, anxiety, and depression. The purpose of this work is to assess the prevalence and common types of sleep disorders which occur with ischemic stroke, as well as the evaluation of the early effect of sleep disorders on cognitive and psychiatric outcomes of patients.

Patients and methods
This study was carried out on 50 patients suffering from first ever acute ischemic stroke, their age ranged from 45 to 60 years. Each patient was subjected to full medical history taking, neurological examination using National Institutes of Health Stoke Scale (NIHSS), overnight Polysomnography (PSG), and sleep scales including Pittsburgh Sleep Quality Index (PSQI) and Epworth sleepiness scale (ESS). A psychiatric evaluation was done using the Arabic version of the Mini-International Neuropsychiatric Interview (MINI), Hamilton Depression Rating Scale (HDRS), and the Hamilton Anxiety Rating Scale (HARS). Cognitive functions were estimated by Montreal Cognitive Assessment (MoCA). PSG and all these scales were applied on patients twice; first, within 1 week from the onset of ischemic stroke and second, 3 months after stroke.

Results
Post-stroke sleep disorders were prevalent and correlated with stroke severity using NIHSS. Excessive daytime sleepiness (EDS) was the most prevalent (78%) type of post-stroke sleep disorder, and it slightly improved after 3 months. The second type was breathing-related sleep disorders (BSD) presented in 74% of patients, and central sleep apnea was the most frequent type. Insomnia existed in 62% of patients due to poor sleep efficiency and decreased sleep quality, and it slightly improved in follow-up. Periodic limb movement disorder (PLMD) was observed in half of the patients and did not improve after 3 months. Sleep disorders affected cognition (low MoCA scale) and correlated with BSD, EDS, and insomnia. Sleep disorders influenced post-stroke depression and correlated with PLMD, EDS, and insomnia. Sleep disorders provoked post-stroke anxiety and correlated with insomnia and PLMD.

Conclusion
Sleep disorders (sleep–wake cycle disorders, BSD, and PLMD) were highly prevalent after stroke, and they increased the incidence of post-stroke cognitive impairment, depression, and anxiety.
Hygrothermal analysis of ceramic coating durability under thermal fluctuations on building facades in Brasília
Authors: Gomes Gilberto , Silva Luis , Bauer Elton 
Published: February 2025

Abstract
Building facades are continuously subjected to various external agents, such as solar radiation and temperature fluctuations, which significantly contribute to the degradation of building materials. Understanding these effects is crucial for improving the durability and performance of facades in diverse climatic conditions. This study focuses on the hygrothermal analysis of ceramic coatings applied to vertical facades in Brasília, the capital of Brazil, over a one-year period. The analysis is performed on three distinct colors of ceramic finishes – white, red, and black – and aims to evaluate the impact of thermal variations and solar radiation on the durability of these coatings. Using advanced hygrothermal modeling with the WUFI software, the study quantifies the thermal fluctuations and their effects on the ceramic materials, considering their color-dependent thermal absorption properties. The findings highlight which facades are most susceptible to thermal damage and provide valuable insights for designing maintenance strategies and improving the longevity of ceramic coatings in regions with extreme temperature changes. This research contributes to the understanding of thermal stresses in building facades and offers guidelines for enhancing the durability of ceramic finishes exposed to varying climatic conditions.
Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface
Authors: Ma Jinyong , Ren Jinliang , Zhang Jihua , Meng Jiajun , McManus-Barrett Caitlin , Crozier Kenneth B. , Sukhorukov Andrey A. 
Published: February 2025

Abstract
Nonlinear metasurfaces with subwavelength thickness were recently established as versatile platforms for the enhanced and tailorable generation of entangled photon pairs. The small dimensions and inherent stability of integrated metasurface sources are attractive for free-space applications in quantum communications, sensing, and imaging, yet this remarkable potential remained unexplored. Here, we formulate and experimentally demonstrate the unique benefits and practical potential of nonlinear metasurfaces for quantum imaging at infrared wavelengths, facilitating an efficient protocol combining ghost and all-optical scanning imaging. The metasurface incorporates a subwavelength-scale silica metagrating on a lithium niobate thin film. Its distinguishing feature is the capability to all-optically scan the photon emission angle in the direction across the grating simply by tuning the pump beam wavelength. Simultaneously, the photon emission is broad and anti-correlated along the grating direction, allowing for ghost imaging. Thereby, we reconstruct the images of 2D objects using just a 1D detector array in the idler path and a bucket detector in the signal path, by recording the dependencies of photon coincidences on the pump wavelength. Furthermore, we theoretically demonstrate the quantum imaging of objects with an ultra-large field of view and improved imaging resolution. Remarkably, the corresponding number of resolution cells can exceed the performance of quantum ghost imaging with conventional bulky crystals by over four orders of magnitude. The demonstrated concept can be extended to multi-wavelength operation and other applications such as quantum object tracking, paving the way for advancements in quantum technologies using ultra-compact nanostructured metasurfaces.
The Laplacian spectrum of language: Experiments with linguistic families from the Americas
Authors: Vera Javier 
Published: February 2025

Abstract
To what extent statistical mechanics approaches would help to represent languages from the Americas? It is possible to extract useful information about the relationships between these languages? This work studies a graph-based approach to extract information from text corpora of languages of the Americas. Each language is viewed as the set of eigenvalues obtained from the Laplacian matrix of co-occurrence graphs. The results suggest that our graph-based feature extraction technique is partly comparable to the knowledge contained in typological databases. We argue that our approach might propose a solution to the lack of textual resources for low-resource languages.
Increased Steroidogenic Acute Regulatory Protein Contributes to Cholesterol-induced β-Cell Dysfunction
Authors: Akter Rehana , Hogan Meghan F , Esser Nathalie , Barrow Breanne M , Castillo Joseph J , Boyko Edward J , Templin Andrew T , Hull Rebecca L , Zraika Sakeneh , Kahn Steven E 
Published: February 2025

Abstract
Hypercholesterolemia is often observed in individuals with type 2 diabetes. Cholesterol accumulation in subcellular compartments within islet β-cells can result in insulin secretory dysfunction, which is a key pathological feature of diabetes. Previously, we demonstrated that expression of the mitochondrial cholesterol transport protein, steroidogenic acute regulatory protein (StAR), is induced in islets under conditions of β-cell dysfunction. However, whether it contributes to mitochondrial cholesterol accumulation in β-cells and cholesterol-induced β-cell dysfunction has not been determined. Thus, we sought to examine the role of StAR in isolated mouse islets under conditions of excess exogenous cholesterol. Cholesterol treatment of islets upregulated StAR expression, which was associated with cholesterol accumulation in mitochondria, decreased mitochondrial membrane potential and impaired mitochondrial oxidative phosphorylation. Impaired insulin secretion and reduced islet insulin content were also observed in cholesterol-laden islets. To determine the impact of StAR overexpression in β-cells per se, a lentivirus was used to increase StAR expression in INS-1 cells. Under these conditions, StAR overexpression was sufficient to increase mitochondrial cholesterol content, impair mitochondrial oxidative phosphorylation, and reduce insulin secretion. These findings suggest that elevated cholesterol in diabetes may contribute to β-cell dysfunction via increases in StAR-mediated mitochondrial cholesterol transport and accumulation.
Deep Brain Stimulation in the treatment of disorders of consciousness
Authors: Olszak Joanna , Zalewa Karolina , Bartoszek Lidia , Orłowska Dominika , Kapłan Wojciech , Poleszczuk Mikołaj , Poleszczuk Karol , Milewska Alicja , Czuba Anna , Kaus Marta 
Published: February 2025

Introduction and Purpose
Disorders of consciousness, such as the vegetative state (VS) and minimally conscious state (MCS), are significant neurological conditions where patients exhibit limited or no awareness of their surroundings. Despite advancements in medical care, treatment options for these conditions remain limited, and prognosis is often poor. Deep brain stimulation (DBS) has emerged as a promising therapeutic option, particularly for patients with MCS or severe brain injuries. This review explores the clinical applications, and outcomes of DBS in the treatment of disorders of consciousness.
Material and Methods
A comprehensive literature review was conducted using the PubMed database, focusing on articles published up to the end of 2024. The search included the keywords "deep brain stimulation", "disorders of consciousness", "neuromodulation therapy", and " effectiveness" in various combinations. Relevant studies were selected based on criteria such as the effect of DBS in patients with disorders of consciousness.
Results
Several studies have shown that DBS, particularly targeting regions such as the thalamus or subthalamicnucleus, can lead to improvements in consciousness levels, responsiveness to external stimuli, and interaction with the environment. In some cases, patients in MCS have exhibited improved awareness, motor responses, and even the ability to communicate. Key factors influencing outcomes include the timing of DBS application, the extent of brain injury, and the specific brain regions targeted.
Conclusions
DBS offers a novel and potentially effective treatment for patients with disorders of consciousness, especially those in a minimally conscious state. While the results are promising, more controlled and larger-scale clinical trials areneeded to better understand the long-term efficacy, optimal timing, and appropriate patient selection.
"Quiero seguir en activo": Estrategias de mujeres que padecen fibromialgia para realizar actividades cotidianas básicas, instrumentales y avanzadas
Authors: Sanjuan-Sánchez Daniel , Climent-Sanz Carolina , Patiño-Vera María del Mar , Gea-Sánchez Montserrat , Rubí-Carnacea Francesc , Briones Vozmediano Erica 
Published: February 2025

Objetivo: Los síntomas de la fibromialgia pueden limitar significativamente la capacidad de una persona para funcionar y participar en actividades cotidianas, como el trabajo. Explorar las percepciones de las pacientes sobre el impacto de los síntomas de la fibromialgia en su capacidad funcional puede aportar información valiosa sobre sus estrategias de afrontamiento y necesidades de permanecer activas. El objetivo de esta investigación es describir las estrategias y adaptaciones utilizadas por mujeres con fibromialgia para llevar a cabo las actividades básicas, instrumentales y avanzadas de la vida diaria.
Método: Estudio cualitativo basado en entrevistas personales a 25 mujeres diagnosticadas de fibromialgia. Se realizó un análisis temático siguiendo la clasificación de las actividades de la vida diaria en básicas (movimiento y desplazamiento, higiene personal y vestirse), instrumentales (limpieza, tareas domésticas y compras) y avanzadas (trabajo).
Resultados: Debido al impacto funcional de los síntomas en todas las actividades de la vida diaria, las mujeres con fibromialgia introdujeron diferentes estrategias compensatorias, productos de apoyo y modificaciones en el entorno o la tarea, para aumentar su nivel de competencia en el trabajo. Introducir adaptaciones en el espacio público es un reto y el trabajo una fuente de angustia, ya sea por su desaparición o por el esfuerzo que supone llevarlo a cabo satisfactoriamente.
Conclusiones: Los profesionales sanitarios que atienden a mujeres con fibromialgia deben reconocer el impacto de la fibromialgia en la funcionalidad de las pacientes y emplear estrategias para mejorar su adaptación, así como facilitar la valoración de la incapacidad laboral.
‘It would probably do more harm than good’: mental health nurses' experiences of nondisclosure within individual clinical supervision
Authors: Farley Stuart , Karwatzki Emma , Mason Barbara 
Published: February 2025

Background/Aims Negative attitudes towards clinical supervision among nurses is a concern given the potential impact on safe and effective practice. This study aimed to explore mental health nurses' perspectives of clinical supervision and nondisclosure in this setting. Methods For the purposes of the research, nondisclosure was defined as the intentional withholding of information within supervision. Semi-structured interviews were conducted with 10 mental health nurses about their experiences of nondisclosure in supervision. Qualitative findings were analysed using thematic analysis. Results Five main themes were identified from the interviews: the expectation to be superhuman, being part of a team, a poorly defined space, feeling relationally unsafe and strategies to stay safe. These themes operated on individual, clinical supervision and cultural levels. The findings highlight a need for clinical supervision spaces that are regular, structured, clearly defined, predictable and safe. Conclusions The findings highlight a need for clinical supervision spaces that are regular, structured, clearly defined, predictable and safe. Effective clinical supervision is crucial for retaining well-supported practitioners and maintaining safe, accountable care.
Hippophae rhamnoides L. leaf extract augments dermal wound healing in streptozocin-induced diabetic rats
Authors: Upadhyay Nitin K , Keshri Gaurav K , Gupta Asheesh 
Published: February 2025

Objective: The present investigation was undertaken to determine the healing efficacy of Hippophae rhamnoides L. (sea buckthorn (SBT)) leaf aqueous lyophilised extract (SBTL-ALE) on a diabetic wound model in rats. The effect of SBTL-ALE was also evaluated on human epithelial cell lines (A431) by using in vitro wound closure and transwell migration assays. Method: A total of four full-thickness excision-type wounds were created on the dorsal surface of streptozocin-induced diabetic rats. The animals were divided into two groups: control rats treated with soft white petroleum jelly and experimental rats treated with SBTL-ALE (5.0%, weight/weight) ointment applied topically, twice daily for seven days. Results: SBTL-ALE significantly (p<0.05) accelerated the migration of epithelial cells in in vitro wound closure and transwell migration assays. Further, SBTL-ALE augmented the healing process by significantly (p<0.05) enhanced wound area contraction, faster complete epithelial closure, increased hydroxyproline (collagen) and hexosamine levels in diabetic rats. Histopathological findings confirmed the healing potential of SBTL-ALE. Immunohistochemical analyses showed increased expression of transforming growth factor (TGF)-β and α-smooth muscle actin in SBTL-ALE-treated wounds of diabetic rats. Superoxide dismutase, catalase and reduced glutathione levels increased, whereas reactive oxygen levels were decreased significantly (p<0.05) in SBTL-ALE-treated wounds compared to diabetic controls, which conferred redox homeostasis. Conclusion: Our results suggest that SBTL-ALE accelerated transdermal wound healing in diabetic rats by increasing the rate of wound contraction, enhancing levels of collagen, hexosamine and endogenous antioxidants, and reducing oxidative stress.
Usefulness of a negative pressure wound therapy system for stoma closure
Authors: Shirakawa Chisato , Sakamoto Yuzuru , Ueki Shinya , Shomura Hiroki , Kazui Keizo , Taketomi Akinobu 
Published: February 2025

Objective: Although wound infection rates after stoma closure have decreased, they remain high. Negative pressure wound therapy (NPWT) for stoma closure wounds can shorten healing time for many wound types. The PICO (Smith+Nephew, UK) wound dressing, a single-use NPWT system that can be used for outpatients, was introduced at the Japan Community Health Care Organization Hokkaido Hospital, Japan in November 2017. We evaluated the effectiveness of this dressing in stoma closure wounds. Method: We retrospectively evaluated patients who underwent stoma closure between March 2012 and July 2021. We compared postoperative short-term outcomes (surgical site infection (SSI), number of pain medications, and postoperative hospital stay) by allocating the patients to one of two groups: purse-string closure or purse-string closure with PICO. The purse-string closure group (PC) underwent purse-string closure alone, while the other group underwent purse-string closure and PICO (PCP). Results: A total of 35 patients were evaluated; 20 in the PC group and 15 in the PCP group. No significant differences in characteristics were noted between the groups. Comparisons between stoma closure techniques revealed that the PCP group had shorter hospital stays (p=0.04), lower SSI rates (p=0.04), and less pain medication (p<0.01) than the PC group. Comparisons between SSI occurrence revealed that the group of patients with an SSI had a higher number of colostomies compared with ileostomies (37.5% versus 0%, p<0.01, respectively), used more pain medication (p<0.01), and had longer hospital stays (p=0.04) than patients who did not have an SSI. Conclusion: After stoma closure, combining PICO with purse-string closure may be effective in preventing SSI and controlling postoperative pain.
Pulmonary cryptococcosis in immunocompetent children presenting with chest pain: Three case reports
Authors: Li Xiao-Nan , Chen Jie-Hua , Lu Zhi-Wei 
Published: February 2025

BACKGROUND
Cryptococcus is a systemic opportunistic pathogenic fungus that can cause infections in both immunocompromised and immunocompetent hosts, with diverse clinical manifestations, ranging from asymptomatic pulmonary lesions to disseminated central nervous system infections. The incidence of pulmonary cryptococcosis (PC) has rapidly increased in recent years, with an increasing proportion of non-human immunodeficiency virus-infected and immunocompetent patients making its diagnosis challenging. If not properly recognized, PC can lead to systemic dissemination and high mortality rates. Early diagnosis and treatment can improve the prognosis. This study summarizes the clinical features of three immunocompetent children with PC who presented with chest pain to raise clinicians' awareness of the disease and reduce mortality.
CASE SUMMARY
Three male pediatric patients in good health were hospitalized because of chest pain without cough or fever. Chest computed tomography (CT) revealed pleural-based nodules and consolidation with cavitation. A lung biopsy was performed in one case, and Cryptococcus was cultured from the pathological tissues. Cryptococcus was detected in the alveolar lavage fluid, and serum Cryptococcus capsular (C. capsular ) polysaccharide antigen was positive in one case, and the other case was positive for serum C. capsular polysaccharide. All patients received oral fluconazole treatment. Follow-up chest CT scans after six months showed significant resolution of the lesions.
CONCLUSION
PC can also occur in immunocompetent children. When encountering children with chest pain only in the clinic, one should be vigilant about PC, promptly complete the relevant examinations, and avoid misdiagnosis.
Diagnosis and surgical challenges of extremely severe head and lumbar disc herniation in young patients: A case report
Authors: Zhou Jun-Ge 
Published: February 2025

BACKGROUND
Lumbar disc extrusion, a common spinal disorder, is particularly uncommon in its severely displaced form, especially in young patients. This condition can pose diagnostic challenges due to its nonspecific presentation.
CASE SUMMARY
A 36-year-old male patient presented with persistent low back pain and radiating leg pain lasting half a month, which had worsened over the previous four days. Lumbar magnetic resonance imaging scans showed an abnormal signal within the vertebral canal at the L3 level, suggesting either a disc cyst or an epidural hematoma. Based on these findings, the patient was provisionally diagnosed with either condition. Surgical exploration was conducted, revealing an extruded lumbar disc, which was subsequently excised. Following surgery, the patient's symptoms completely resolved.
CONCLUSION
High-grade lumbar disc extrusion in young patients is rare but should be considered in sedentary, physically inactive individuals presenting with lumbocrural pain and abnormal magnetic resonance imaging findings. Early and accurate diagnosis is crucial to avoid misdiagnosis, and prompt open surgery may be necessary in severe cases to alleviate symptoms. The case highlights the impotance of a thorough diagnostic workup and timely surgical intervention in managing such rare but potentially severe spinal disorders.