bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unified Pressure, Surface Tension and Friction for SPH Fluids
Authors: Probst Timo , Teschner Matthias 
Published: December 2024

Fluid droplets behave significantly different from larger fluid bodies. At smaller scales, surface tension and friction between fluids and the boundary play an essential role and are even able to counteract gravitational forces. There are quite a few existing approaches that model surface tension forces within an SPH environment. However, as often as not, physical correctness and simulation stability are still major concerns with many surface tension formulations. We propose a new approach to compute surface tension that is both robust and produces the right amount of surface tension.
Conversely, less attention was given to friction forces at the fluid-boundary interface. Recent experimental research indicates that Coulomb friction can be used to describe the behavior of droplets resting on a slope. Motivated by this, we develop a novel friction force formulation at the fluid-boundary interface following the Coulomb model, which allows us to replicate a new range of well known fluid behavior such as the motion of rain droplets on a window pane.
Both forces are combined with an IISPH variant into one unified solver that is able to simultaneously compute strongly coupled surface tension, friction and pressure forces.
Cells in the Polyaneuploid Cancer Cell State Are Prometastatic
Authors: Mallin Mikaela M. , Rolle Louis T.A. , Schmidt Michael J. , Priyadarsini Nair Shilpa , Zurita Amado J. , Kuhn Peter , Hicks James , Pienta Kenneth J. , Amend Sarah R. 
Published: December 2024

Abstract
Our research aims to understand the adaptive—ergo potentially metastatic—responses of prostate cancer to changing microenvironments. Emerging evidence implicates a role of the polyaneuploid cancer cell (PACC) state in metastasis, positing the PACC state as capable of conferring metastatic competency. Mounting in vitro evidence supports increased metastatic potential of cells in the PACC state. Additionally, our recent retrospective study revealed that PACC presence in patient prostate tumors at the time of radical prostatectomy was predictive of future metastasis. To test for a causative relationship between PACC state biology and metastasis in prostate cancer, we leveraged a novel method designed for flow cytometric detection of circulating tumor cells (CTC) and disseminated tumor cells (DTC) from animal models. This approach provides both quantitative and qualitative information about the number and PACC status of recovered CTCs and DTCs. Specifically, we applied this approach to the analysis of subcutaneous, caudal artery, and intracardiac murine models. Collating data from all models, we found that 74% of recovered CTCs and DTCs were in the PACC state. Furthermore, in vivo colonization assays proved that PACC populations can regain proliferative capacity at metastatic sites. Additional in vitro analyses revealed a PACC-specific partial epithelial-to-mesenchymal transition phenotype and a prometastatic secretory profile, together providing preliminary evidence of prometastatic mechanisms specific to the PACC state.
Implications: Considering that many anticancer agents induce the PACC state, our data position the increased metastatic competency of PACC state cells as an important unforeseen ramification of neoadjuvant regimens, which may help explain clinical correlations between chemotherapy and metastatic progression.
De-Stiffening the Aged Aorta with Regular Aerobic Exercise in Humans: Fact or Fallacy?
Authors: Pierce Gary L. 
Published: December 2024

Background: Aortic stiffness, quantified by carotid-femoral pulse wave velocity (PWV), is a strong predictor of cardiovascular disease events. In general, dynamic “aerobic” exercise training performed regularly for many years in middle and older age is associated with an attenuated or absence of an age-related increase in aortic stiffness without hypertension. However, cross-sectional studies can be confounded by physiological or lifestyle factors that may contribute in part to the lower aortic stiffness observed, and prospective interventions are often limited by short duration and inadequate exercise frequency to have clinical benefit. Therefore, this review will discuss the evidence for the de-stiffening effects of regular, dynamic aerobic exercise training on aortic stiffness in the presence or absence of hypertension with some discussion on high-intensity interval training (HIIT). Summary: Short-term (3–12 months) aerobic exercise interventions, 2–3 days per week initiated in middle age or older age without hypertension, result in small decreases in carotid-femoral PWV that is likely the result of reductions in distending pressure (i.e., mean arterial pressure) rather than an alteration in structural wall properties. However, cross-sectional data indicate that 4–5 days/week appears to be the minimal frequency that is obligatory for de-stiffening of the aorta among adults who perform regular exercise in middle age and continue into older age. Despite greater improvements in aerobic fitness by high-intensity interval training (HIIT), short-term HIIT 4 days/week does not provide any benefit over moderate-intensity continuous training for de-stiffening the aorta among older adults with or without hypertension. Key Messages: Short-term aerobic exercise interventions 2–3 days/week at moderate intensity initiated in middle age or older age have small or no favorable blood pressure-independent effect on aortic wall stiffness. In contrast, 4–5 days/week appears to be the minimal obligatory dose of aerobic exercise to have some de-stiffening effects if performed during middle age and continuing into older age. Short-term HIIT provides no greater de-stiffening effects on the aged aorta than continuous aerobic exercise training.
Endothelial FUNDC1 Deficiency Drives Pulmonary Hypertension
Authors: Pei Yandong , Ren Dongfeng , Yin Yuanhao , Shi Jiajia , Ai Qianyuan , Hao Wenxin , Luo Xiaofan , Zhang Chenyue , Zhao Yanping , Bai Chenyu , Zhu Lin , Wang Qiong , Li Shuangling , Zhang Yuwei , Lu Jiangtao , Liu Lin , Zhou Lin , Wu Yuli , Weng Yiqi , Jing Yongle , Lu Chengzhi , Cui Yujie , Zheng Hao , Li Yanjun , Chen Guo , Hu Gang , Chen Quan , Liao Xudong 
Published: December 2024

BACKGROUND:
Pulmonary hypertension (PH) is associated with endothelial dysfunction. However, the cause of endothelial dysfunction and its impact on PH remain incompletely understood. We aimed to investigate whether the hypoxia-inducible FUNDC1 (FUN14 domain-containing 1)-dependent mitophagy pathway underlies PH pathogenesis and progression.

METHODS:

We first analyzed FUNDC1 protein levels in lung samples from patients with PH and animal models. Using rodent PH models induced by HySu (hypoxia+SU5416) or chronic hypoxia, we further investigated PH pathogenesis and development in response to global and cell-type-specific
Fundc1
loss/gain-of-function. We also investigated the spontaneous PH in mice with inducible loss of endothelial
Fundc1
. In addition, histological, metabolic, and transcriptomic studies were performed to delineate molecular mechanisms. Finally, findings were validated in vivo by compound deficiency of HIF2α (hypoxia-inducible factor 2α;
Epas1
) and pharmacological intervention.

RESULTS:

FUNDC1 protein levels were reduced in PH lung vessels from clinical subjects and animal models. Global
Fundc1
deficiency exacerbated PH, while its overexpression was protective. The effect of FUNDC1 was mediated by endothelial cells rather than smooth muscle cells. Further, inducible loss of endothelial
Fundc1
in postnatal mice was sufficient to cause PH spontaneously, whereas augmenting endothelial
Fundc1
protected against PH before and after the onset of disease. Mechanistically,
Fundc1
deficiency impaired basal mitophagy in endothelial cells, leading to the accumulation of dysfunctional mitochondria, metabolic reprogramming toward aerobic glycolysis, pseudohypoxia, and senescence, likely via a mtROS-HIF2α signaling pathway. Subsequently,
Fundc1
-deficient endothelial cells increased IGFBP2 (insulin-like growth factor-binding protein 2) secretion that drove pulmonary arterial remodeling to instigate PH. Finally, proof-of-principle in vivo studies showed significant efficacy on PH amelioration by targeting endothelial mitophagy, pseudohypoxia, senescence, or IGFBP2.

CONCLUSIONS:
Collectively, we show that FUNDC1-mediated basal mitophagy is critical for endothelial homeostasis, and its disruption instigates PH pathogenesis. Given that similar changes in FUNDC1 and IGFBP2 were observed in PH patients, our findings are of significant clinical relevance and provide novel therapeutic strategies for PH.
Comparing reliability-based measures of functional connectivity between movie and rest: An ROI-based approach
Authors: Shearer Hallee , Eilbott Jeffrey , Vila-Rodriguez Fidel , Noble Stephanie , Xu Ting , Vanderwal Tamara 
Published: December 2024

Abstract
Functional connectivity (FC) has shown promising utility in the field of precision psychiatry. However, to translate from research to clinical use, FC reliability and sensitivity to individual differences still require improvement. Movie watching as an acquisition state offers advantages at the whole-brain level that align with the requirements of FC for individualized measures. However, it is unclear whether these advantages hold in specific brain regions important for precision psychiatry. Here, we compared univariate and multivariate reliability-based measures of movie-watching and resting-state FC data in three psychiatrically relevant brain regions. We found that the reliability of movie-watching FC was comparable with resting-state FC in the dorsolateral prefrontal cortex and presupplementary motor area, and movie-watching FC was more discriminable than resting-state FC in the temporoparietal junction. Rest had higher reliabilities at lower data amounts (e.g., under 5 minutes of scan time). We then expanded this approach to all brain regions and showed that for image intraclass correlation coefficients (I2C2), no parcels were significantly different between movie and rest. For discriminability, 25% (94/379) of parcels were better for movie than for rest, and zero parcels were better for rest. For fingerprinting, 59 parcels were better for movie (mainly in visual and temporal regions, mean improvement in accuracy = 23%) and 4 parcels were better for rest. For researchers interested in cross-state differences in FC reliability, we provide an interactive visualization tool that displays the results for all measures and for all regions in both movie and rest. These findings suggest that movie watching as an acquisition state—even when using different movies across scans—may provide a useful alternative to resting state in research studies that require optimization of FC discriminability.
Pseudo partition-encoded simultaneous multislab (pPRISM) for rapid, navigator-free submillimeter diffusion MRI with reduced slab-boundary signal loss
Authors: Chang Wei-Tang , Liao Congyu , Lee Hong-Hsi 
Published: December 2024

Abstract
The primary aim of this study is to address the challenges in submillimeter diffusion magnetic resonance imaging (dMRI), such as prolonged acquisition time, low signal-to-noise ratio (SNR), and signal attenuation at slab boundary. We introduce a novel 3D Fourier encoding mechanism, PRISM (Partition-encoded Simultaneous Multislab), and a new concept termed “pseudo slab.” The PRISM method allows simultaneous inter-slab and intra-slab Fourier encoding solely using the slice gradient, eliminating the need for RF encoding. The pseudo slab concept not only minimizes inter-slab signal leakage and Gibbs truncation artifacts, but also enables phase scheduling onto intra-slab slices, thus eliminating the need for a phase navigator and time-varying gradient such as variable-rate selective excitation (VERSE). Integrating the pseudo slab with PRISM, the resulting pseudo PRISM (pPRISM) technique achieved rapid acquisition of dMRI with 0.86-mm isotropic resolution and an effective TR of 12 s (TR of 2.4 s per shot). Compared to Generalized Slice Dithered Enhanced Resolution with Simultaneous Multislice (gSlider-SMS), the shortened acquisition time improved the SNR efficiency without aggravating the signal attenuation at slab boundaries. The robustness of pPRISM against field inhomogeneity was also supported by Bloch simulation and empirical data. Furthermore, dMRI was successfully achieved with a 0.76-mm isotropic resolution, an effective TR of 15 s, and b-values of up to 2500 s/mm2. The ultrahigh-resolution results of the proposed pPRISM method demonstrated the anticipated dark bands of fractional anisotropy (FA) at gray-white matter boundaries and yielded more plausible tractography results. Our pPRISM framework paves the way for acquiring ultrahigh-resolution dMRI in clinically feasible times, advancing microstructural research.
Are We Missing Obstructive Sleep Apnea in Patients With Non-traumatic Subglottic Stenosis?
Authors: Lackey Taylor G. , Allen Avery , McCabe Nevan , Clary Matthew , Green Katherine K. , Fink Daniel S. 
Published: December 2024

Objective: To investigate the association between subglottic stenosis (SGS) and obstructive sleep apnea (OSA). Methods: This is a cross-sectional pilot cohort study conducted at a single tertiary academic center from 2022 to 2023. Subjects with non-traumatic SGS were recruited for enrollment. All subjects completed a peak expiratory flow (PEF) measurement, validated sleep questionnaires: Epworth Sleepiness Scale (ESS) and Pittsburgh Sleep Quality Index (PSQI), and a 1-night home sleep test (HST). Demographic data were summarized. Prevalence was calculated and descriptively compared to a matched population. Partial correlation analysis evaluated the relationship of PEF% and Meyer-Cotton grading, in addition to PEF% and apnea-hypopnea index (AHI). Sleep quality was compared in subjects with and without OSA via a Mann-Whitney U test. Results: Twenty subjects participated; all were Caucasian females with a mean age of 48.4 (10.4) years and a body mass index (BMI) of 24.1 (3.8). The majority (80%) had idiopathic SGS, and a mean PEF 288 (71) L/min. OSA was present in 40% of subjects, of which 15% had moderate OSA. PEF% did not correlate to AHI ( P > .05). Poor sleep quality (PSQI ≥ 5) was present in 70% of subjects and 20% had excessive daytime sleepiness (ESS > 9). PSQI and ESS did not differ between subjects with and without OSA ( P > .05). Conclusion: OSA prevalence is elevated in a cohort of subjects with SGS. Further study of airway dilation’s impact on OSA is necessary. Screening and surveillance for OSA in patients with subglottic stenosis may need to be considered based on this study’s findings. Level of Evidence: Level 3.
Magnetic Seizure Therapy in Refractory Psychiatric Disorders: A Systematic Review and Meta-Analysis: La thérapie par convulsions magnétiques pour la prise en charge des troubles psychiatriques réfractaires : revue systématique et méta-analyse
Authors: Prillo Jake , Zapf Lorina , Espinola Caroline W. , Daskalakis Zafiris J. , Blumberger Daniel M. 
Published: December 2024

Objective To qualitatively and quantitatively synthesize the literature on the efficacy and safety of magnetic seizure therapy (MST) in psychiatric disorders. Methods A literature search was conducted of the OVID Medline, OVID EMBASE, PsychINFO, CINAHL, Web of Science and Cochrane databases from inception to 14 January 2024, using subject headings and key words for “magnetic seizure therapy.” Randomized controlled trials (RCTs), post-hoc analyses of RCTs, open-label trials, or case series investigating MST in adults with a verified psychiatric diagnosis and reporting on two possible primary outcomes (1) psychiatric symptom reduction (as measured by validated rating scale) or (2) neurocognitive outcomes (as measured by standardized testing), were included. Abstracts, individual case reports, reviews and editorials were excluded. Extracted data included: (1) basic study details; (2) study design; (3) sample size; (4) baseline demographics; (5) outcome data (including secondary outcomes of suicidal ideation and adverse events); and (6) stimulation parameters. Cochrane's risk of bias tool was applied. A quantitative analysis was conducted for the depression studies, using Hedge's g effect sizes. Results A total of 24 studies (n = 377) were eligible for inclusion. Seventeen studies in depression (including three RCTs), four studies in schizophrenia (including one RCT), one study in bipolar disorder, one study in obsessive-compulsive disorder and one study in borderline personality disorder were summarized. We found no significant difference in depressive symptom reduction between MST and electroconvulsive therapy (ECT) in randomized, controlled trials (g = 0.207 towards ECT, 95% confidence interval (CI) −0.132 to 0.545, P = 0.232). We found a significant reduction in depressive symptoms overall with MST in the pooled RCT and open-label analysis (g = 1.749, CI 1.219 to 2.279, P < 0.005). It is suggested that MST has modest cognitive side effects. Conclusions Large-scale RCTs are necessary to confirm early signals of MST as an effective intervention in psychiatric disorders with a cognitive profile that is potentially more favourable than ECT.
A Novel Noninvasive Approach, “DrOroscope,” for Early Detection of Dysplasia in Oral Mucosal Lesions: A Cross-sectional Study
Authors: Yeladandi Mounika , Maheswari T. N. Uma , Padala Swetha Bindu , Sujatha Mekala Mary , Vemula Harika , Kala Tejaswi , Abidullah Mohammed 
Published: December 2024

Background Oral cancer is a significant global burden in the present scenario, and early detection has critical importance in improving the survival rate. Devices which aid in the early diagnosis of dysplastic lesions noninvasively are necessary to reduce the oral cancer burden and improve the quality of life of the patients. Purpose To evaluate the efficacy of DrOroscope in diagnosing dysplasia in oral mucosal lesions. Methods A cross-sectional study was conducted among 40 individuals clinically diagnosed with oral mucosal lesions from various demographics in Hyderabad. Participants were screened using the DrOroscope device, which detects dysplastic changes via fluorescence imaging analyzed by artificial intelligence algorithms. Based on the image analysis, lesions were categorized as variable, borderline, or severe. Confirmatory biopsies were performed on all examined lesions, with histopathological results as the gold standard. Statistical analyses, including Chi-square tests, Fisher’s exact test, Cohen’s kappa, and receiver operating characteristic (ROC) curve analysis, were conducted using SPSS version 26.0 with a confidence interval at 95% and p < .05 significance. Results DrOroscope exhibited a sensitivity of 100.00% and a specificity of 69.23%. Positive predictive value was 87.10%, negative predictive value was 100.00%, and overall diagnostic accuracy was 90.00%. Cohen’s kappa value for agreement between DrOroscope and biopsy results was 0.752, indicating substantial agreement, and 0.539 for detecting dysplasia levels, indicating moderate agreement. The ROC curve analysis supported these findings, demonstrating excellent diagnostic performance. Conclusion The DrOroscope device is highly sensitive and accurate in detecting dysplastic changes in oral lesions, making it a promising adjunctive noninvasive diagnostic tool, especially in screening larger populations. This aids in the early diagnosis of dysplasia and thus reducing patients’ morbidity. However, further refinement and larger studies are needed to improve agreement with biopsy for grading of dysplasia. Clinical Significance of the Study DrOroscope plays a promising role in the early diagnosis of dysplasia. This can have a huge impact on the treatment plan, thereby improving the quality of life of the patient. Such devices play a crucial role in oral cancer screening programs, thus promoting awareness on early detection of oral cancer and also enhancing the effectiveness of oral cancer prevention.
Factors affecting the unused short peripheral catheters: A neverending debate? A cross-sectional study in hospitalized patients
Authors: Canzan Federica , Longhini Jessica , Allegrini Elisabetta , Marini Giulia , Mezzalira Elisabetta , Zulianello Giorgia , Ambrosi Elisa 
Published: December 2024

Background: Concern about unused vascular access devices has increased, but data on idle short peripherally intravascular catheters in medical-surgical units is still scarce. We aimed to assess the prevalence of unused short peripheral catheters in hospitalized patients and identify risk factors and reasons that lead nurses to maintain them in situ. Methods: A cross-sectional observational study was performed in September 2022. Clinical observation (24h) and medical records review were assessed to collect patient demographics and catheter-related information. Nurses were asked the main reason for continuing the use of the unused catheter. The primary outcome was the prevalence of unused short peripheral catheters, which were no longer used for intravenous fluids or medications in the previous 24 h. Multivariate logistic regression has been performed to evaluate risk factors for unused catheters. The STROBE checklist was used to report our study. Results: Seven hundred and sixty-four patients were included; out of the 621 patients with at least one short peripheral catheter, one-third had at least one unused catheter. The risk of having an unused peripherally intravascular catheter was almost double when the catheter was positioned in the emergency department. Catheters of smaller calibers and in situ for fewer days were less likely to be unused. The main reasons for keeping a peripherally intravascular catheter unused in situ were clinical conditions. Conclusion: Unused short peripheral catheters are still quite frequent. While specific clinical needs justified some unused short peripheral catheters, a proportion remained unexplained and potentially avoidable. Nurses and policymakers can use the findings to inform decision-making and protocols to manage peripherally inserted catheters to reduce unused short peripheral catheters and, consequently, complications and costs and improve patient safety and quality of care.