keyword
https://read.qxmd.com/read/38634662/bayesian-estimation-of-dissipation-and-sound-speed-in-tube-measurements-using-a-transfer-function-model
#1
JOURNAL ARTICLE
Ziqi Chen, Ning Xiang
This study discusses acoustic dissipation, which contributes to inaccuracies in impedance tube measurements. To improve the accuracy of these measurements, this paper introduces a transfer function model that integrates diverse dissipation prediction models. Bayesian inference is used to estimate the important parameters included in these models, describing dissipation originating from various mechanisms, sound speed, and microphone positions. By using experimental measurements and considering a hypothetical air layer in front of a rigid termination as the material under test, Bayesian parameter estimation allows a substantial enhancement in characterization accuracy by incorporating the dissipation and sound speed estimates...
April 1, 2024: Journal of the Acoustical Society of America
https://read.qxmd.com/read/38634661/articulatory-and-acoustic-differences-between-lyric-and-dramatic-singing-in-western-classical-music
#2
JOURNAL ARTICLE
Matthias Echternach, Fabian Burk, Jonas Kirsch, Louisa Traser, Peter Birkholz, Michael Burdumy, Bernhard Richter
Within the realm of voice classification, singers could be sub-categorized by the weight of their repertoire, the so-called "singer's Fach." However, the opposite pole terms "lyric" and "dramatic" singing are not yet well defined by their acoustic and articulatory characteristics. Nine professional singers of different singers' Fach were asked to sing a diatonic scale on the vowel /a/, first in what the singers considered as lyric and second in what they considered as dramatic. Image recording was performed using real time magnetic resonance imaging (MRI) with 25 frames/s, and the audio signal was recorded via an optical microphone system...
April 1, 2024: Journal of the Acoustical Society of America
https://read.qxmd.com/read/38634541/mthfr-and-mtrr-gene-polymorphisms-in-patients-with-chronic-hepatitis-b-virus-infections-in-zigong-sichuan-province
#3
JOURNAL ARTICLE
Shunhua Qiu, Lifen Jin, Dan Yang, Dewen Zhang
BACKGROUND: Chronic hepatitis B virus (HBV) infection is a severe disease affecting the physical and economic well-being of patients. The relationship between polymorphisms in the MTHFR gene and disease progression following HBV infection remains a controversial topic. AIM: To study MTHFR and MTRR gene polymorphisms in patients with chronic HBV infections in Zigong, Sichuan Province. SUBJECTS AND METHODS: One hundred and ninety-one patients with chronic HBV infections were divided into three groups: the chronic hepatitis B (CHB) group ( n  = 71), the hepatitis B-induced liver cirrhosis (LC) group ( n  = 56), and the hepatitis B-related primary liver cancer (PLC) group ( n  = 64)...
February 2024: Annals of Human Biology
https://read.qxmd.com/read/38634494/thermophysical-properties-of-h2o-and-d2o-ice-ih-with-contributions-from-proton-disorder-quenching-relaxation-and-extended-defects-a-model-case-for-solids-with-quenching-and-relaxation
#4
JOURNAL ARTICLE
W B Holzapfel, S Klotz
Application of the coherent thermodynamic model [W. Holzapfel and S. Klotz, J. Chem. Phys. 155, 024506 (2021)] for H2O ice Ih to the more detailed data for D2O ice Ih provides better insight into the contributions from quenched proton disorder and offers a new basis for understanding the apparent differences between the data for thermal expansion measured with neutron diffraction on polycrystalline samples [A. Fortes, Acta Crystallogr., Sect. B: Struct. Sci., Cryst. Eng. Mater. 74, 196 (2018) and A. Fortes, Phys...
April 21, 2024: Journal of Chemical Physics
https://read.qxmd.com/read/38634427/dual-mirna-triggered-dna-walker-assisted-by-ape1-for-specific-recognition-of-tumor-cells
#5
JOURNAL ARTICLE
Qianying Zhou, Tong Li, Xidong Li, Lintao Wei, Jiaxin Luo, Lingling Bai, Wen-Jun Duan, Baoping Xie, Bin Sun, Jin-Xiang Chen, Zong Dai, Jun Chen
The identification of a specific tumor cell is crucial for the early diagnosis and treatment of cancer. However, it remains a challenge due to the limited sensitivity and accuracy, long response time, and low contrast of the recent approaches. In this study, we develop a dual miRNA-triggered DNA walker (DMTDW) assisted by APE1 for the specific recognition of tumor cells. miR-10b and miR-155 were selected as the research models. Without miR-10b and miR-155 presence, the DNA walker remains inactive as its walking strand of W is locked by L1 and L2...
April 18, 2024: Analytical Chemistry
https://read.qxmd.com/read/38634394/the-economic-burden-of-chronic-psychotic-disorders-an-incidence-based-cost-of-illness-approach
#6
JOURNAL ARTICLE
Claire de Oliveira, Bryan Tanner
BACKGROUND: The economic burden of chronic psychotic disorders is substantial. However, few studies have employed an incidence based approach to estimate the economic burden of chronic psychotic disorders. Furthermore, the existing work has mainly used models populated with data obtained from published literature, making several assumptions to estimate incidence-based costs. AIMS OF THE STUDY: The objective of this study was to estimate the direct cumulative mean health care costs of chronic psychotic disorders, using an incidence-based, cost-of-illness approach and real-world data from a single-payer health care system...
March 1, 2024: Journal of Mental Health Policy and Economics
https://read.qxmd.com/read/38633940/exploring-aesthetic-outcomes-and-complications-in-auricular-reconstruction-utilising-autologous-cartilage-a-systematic-review-and-narrative-synthesis
#7
REVIEW
Munir Abukhder, Sam Tarassoli, Ridwanul Hassan, Elizabeth Onions, Salmane Nasri Elmi, Rhys Whelan
Auricular reconstruction remains a challenging procedure, requiring a high degree of manual dexterity and attention to detail in order to reconstruct the complex three-dimensional geometry of the ear successfully. Most techniques will rely on autologous cartilage for auricular framework fabrication, carrying a risk of donor and recipient site morbidity. The aim of this report is to investigate the complications and aesthetic outcomes associated with autologous cartilage harvest in auricular reconstruction. A systematic review protocol was registered with the International Prospective Register of Systematic Reviews (PROSPERO) and reported in accordance with the Preferred Reporting for Items for Systematic Reviews and Meta-Analyses...
March 2024: Curēus
https://read.qxmd.com/read/38633830/utilisation-and-impact-of-predict-prostate-on-decision-making-among-clinicians-and-patients-in-a-specialist-tertiary-referral-centre-a-retrospective-cohort-study
#8
JOURNAL ARTICLE
Madhumitha Pandiaraja, Isolde Pryle, Leah West, Lucy Gardner, Olivia Shallcross, June Tay, Nimish Shah, Vincent Gnanapragasam, Benjamin W Lamb
BACKGROUND: Patients with intermediate-risk prostate cancer are faced with the decision of whether to undergo radical treatment. Decision-making aids, such as Predict Prostate, can empower both clinicians and patients to make treatment decisions with personalised information, but their impact on multi-disciplinary team (MDT) decision-making and uptake of radical treatment remains unknown. OBJECTIVE: The objective of this study is to assess the utilisation and utility of Predict Prostate in informing treatment decisions for patients with intermediate-risk prostate cancer...
April 2024: BJUI compass
https://read.qxmd.com/read/38632611/choroid-plexus-enlargement-in-amyotrophic-lateral-sclerosis-patients-and-its-correlation-with-clinical-disability-and-blood-csf-barrier-permeability
#9
JOURNAL ARTICLE
Tingjun Dai, Jianwei Lou, Deyuan Kong, Jinyu Li, Qingguo Ren, Yujing Chen, Sujuan Sun, Yan Yun, Xiaohan Sun, Yiru Yang, Kai Shao, Wei Li, Yuying Zhao, Xiangshui Meng, Chuanzhu Yan, Pengfei Lin, Shuangwu Liu
BACKGROUND: Using in vivo neuroimaging techniques, growing evidence has demonstrated that the choroid plexus (CP) volume is enlarged in patients with several neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease. However, although animal and postmortem findings suggest that CP abnormalities are likely important pathological mechanisms underlying amyotrophic lateral sclerosis (ALS), the third most common neurodegenerative disease, no available study has been conducted to thoroughly assess CP abnormalities and their clinical relevance in vivo in ALS patients to date...
April 17, 2024: Fluids and Barriers of the CNS
https://read.qxmd.com/read/38632330/global-longitudinal-strain-is-an-informative-index-of-left-ventricular-performance-in-neonates-receiving-intensive-care
#10
JOURNAL ARTICLE
Enrico Petoello, Alice Iride Flore, Silvia Nogara, Elena Bonafiglia, Maria Beatrice Lenzi, Olivia C Arnone, Giovanni Benfari, Martina Ciarcià, Iuri Corsini, Koert De Waal, Leonardo Gottin, Benjamim Ficial
Echocardiographic assessment of left ventricular function is crucial in NICU. The study aimed to compare the accuracy and agreement of global longitudinal strain (GLS) with conventional measurements. Real-life echocardiograms of neonates receiving intensive care were retrospectively reviewed. Shortening fraction (SF), ejection fraction (EF) and S' measurements were retrieved from health records. GLS was calculated offline from stored images. The association with stroke volume indexed for body weight (iSV) was evaluated by regression analysis...
April 17, 2024: Scientific Reports
https://read.qxmd.com/read/38631433/association-between-maternal-body-mass-index-and-fetal-acidosis-in-term-twin-pregnancies-a-retrospective-cohort-study
#11
JOURNAL ARTICLE
Najla Tabbara, Najmus Sehr Ansari, Hemasree Kandraju, Cynthia V Maxwell, Vibhuti Shah
OBJECTIVE: Given the increased risk of fetal acidosis in singleton neonates born to pregnant people with an elevated body mass index (BMI), our objective was to evaluate the association between pre-pregnancy/first trimester BMI and fetal acidosis among term twin pregnancies. METHODS: Retrospective study of pregnant people with twin gestation and their term infants admitted to our centre between 2014 and 2019. Using a generalized estimating equation, the association between maternal BMI and fetal acidosis was determined using odds ratios (OR) with 95% confidence intervals (CI)...
April 15, 2024: Journal of Obstetrics and Gynaecology Canada: JOGC
https://read.qxmd.com/read/38631259/a-novel-epigenetic-strategy-to-concurrently-block-immune-checkpoints-pd-1-pd-l1-and-cd155-tigit-in-hepatocellular-carcinoma
#12
JOURNAL ARTICLE
Reem A Assal, Noha M Elemam, Radwa Y Mekky, Abdelrahman A Attia, Aya Hesham Soliman, Asmaa Ibrahim Gomaa, Eleni K Efthimiadou, Maria Braoudaki, Sherif Ashraf Fahmy, Rana A Youness
Tumor microenvironment is an intricate web of stromal and immune cells creating an immune suppressive cordon around the tumor. In hepatocellular carcinoma (HCC), Tumor microenvironment is a formidable barrier towards novel immune therapeutic approaches recently evading the oncology field. In this study, the main aim was to identify the intricate immune evasion tactics mediated by HCC cells and to study the epigenetic modulation of the immune checkpoints; Programmed death-1 (PD-1)/ Programmed death-Ligand 1 (PD-L1) and T cell immunoreceptor with Ig and ITIM domains (TIGIT)/Cluster of Differentiation 155 (CD155) at the tumor-immune synapse...
April 16, 2024: Translational Oncology
https://read.qxmd.com/read/38631100/elastic-parameter-identification-of-three-dimensional-soft-tissue-based-on-deep-neural-network
#13
JOURNAL ARTICLE
Ziyang Hu, Shenghui Liao, Jianda Zhou, Qiuyang Chen, Renzhong Wu
In the field of virtual surgery and deformation simulation, the identification of elastic parameters of human soft tissues is a critical technology that directly affects the accuracy of deformation simulation. Current research on soft tissue deformation simulation predominantly assumes that the elasticity of tissues is fixed and already known, leading to the difficulty in populating with the elasticity measured or identified from specific tissues of real patients. Existing elasticity modeling efforts struggle to be implemented on irregularly structured soft tissues, failing to adapt to clinical surgical practices...
April 12, 2024: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/38631080/de-novo-brain-vascular-malformations-in-hereditary-hemorrhagic-telangiectasia
#14
JOURNAL ARTICLE
Lauren A Beslow, Timo Krings, Helen Kim, Steven W Hetts, Michael T Lawton, Felix Ratjen, Kevin J Whitehead, James R Gossage, Charles E McCulloch, Marianne Clancy, Negar Bagheri, Marie E Faughnan
BACKGROUND: Approximately 10% of people with hereditary hemorrhagic telangiectasia (HHT) have brain vascular malformations (VMs). Few reports describe de novo brain VM formation. International HHT Guidelines recommend initial brain VM screening upon HHT diagnosis in children but do not address rescreening. We aimed to confirm whether brain VMs can form de novo in patients with HHT. METHODS: The Brain Vascular Malformation Consortium HHT project is a 17-center longitudinal study enrolling patients since 2010...
March 22, 2024: Pediatric Neurology
https://read.qxmd.com/read/38631079/evaluation-of-sleep-habits-and-their-relationship-with-quality-of-life-in-children-with-epilepsy
#15
JOURNAL ARTICLE
Fatih Mehmet Akif Özdemir, Halil Çelik
BACKGROUND: The aim of this study was to investigate sleep habits, quality of life (QoL), and the relationship between them in children with epilepsy. METHODS: In this cross-sectional study, children aged two to 18 years being followed up for epilepsy were assessed using the Children's Sleep Habits Questionnaire (CSHQ) and the Pediatric Quality of Life Inventory (PedsQL). Pearson or Spearman correlation analysis was performed to examine the relationship between normally distributed and non-normally distributed variables, respectively...
March 6, 2024: Pediatric Neurology
https://read.qxmd.com/read/38631078/congenital-cytomegalovirus-infection-with-isolated-minor-lesions-at-fetal-magnetic-resonance-imaging-long-term-neurological-outcome
#16
JOURNAL ARTICLE
Chiara Doneda, Barbara Scelsa, Paola Introvini, Maurizio Zavattoni, Simona Orcesi, Giuseppina Lombardi, Lorenza Pugni, Monica Fumagalli, Mariangela Rustico, Elena Vola, Filippo Arrigoni, Elisa Fabbri, Mario Tortora, Giana Izzo, Maurilio Genovese, Cecilia Parazzini, Beatrice Tassis, Andrea Ronchi, Carlo Pietrasanta, Fabio Triulzi, Andrea Righini
BACKGROUND: The prognostic relevance of fetal/early postnatal magnetic resonance (MR) imaging (MRI) isolated "minor" lesions in congenital cytomegalovirus (CMV) infection is still unclear, because of the heterogeneity of previously reported case series. The aim of this study was to report the imaging and long-term clinical follow-up data on a relatively large cohort of infected fetuses. METHODS: Among 140 CMV-infected fetuses from a single-center 12-year-long fetal MRI database, cases that showed isolated "minor" lesions at MRI, mainly represented by polar temporal lesions, were selected...
March 7, 2024: Pediatric Neurology
https://read.qxmd.com/read/38630960/differences-in-cortical-morphology-in-people-with-and-without-migraine-a-registry-for-migraine-reform-mri-study
#17
JOURNAL ARTICLE
Rune H Christensen, Håkan Ashina, Haidar M Al-Khazali, Yixin Zhang, Daniel Tolnai, Amanda H Poulsen, Alessandro Cagol, Nouchine Hadjikhani, Cristina Granziera, Faisal Mohammad Amin, Messoud Ashina
BACKGROUND AND OBJECTIVES: Structural imaging can offer insights into the cortical morphometry of migraine, which might reflect adaptations to recurring nociceptive messaging. This study compares cortical morphometry between a large sample of people with migraine and healthy controls, as well as across migraine subtypes. METHODS: Adult participants with migraine and age-matched and sex-matched healthy controls attended a single MRI session with magnetization-prepared rapid acquisition gradient echo and fluid-attenuated inversion recovery sequences at 3T...
May 2024: Neurology
https://read.qxmd.com/read/38630937/robotic-versus-laparoscopic-gastrectomy-for-gastric-cancer-a-western-propensity-score-matched-analysis
#18
JOURNAL ARTICLE
Andre Roncon Dias, Marina A Pereira, Marcus F K P Ramos, Rodrigo José de Oliveira, Osmar Kenji Yagi, Ulysses Ribeiro
BACKGROUND: Robot-assisted gastrectomy (RG) has been shown to be safe and feasible in the treatment of gastric cancer (GC). However, it is unclear whether RG is equivalent to laparoscopic gastrectomy (LG), especially in the Western world. Our objective was to compare the outcomes of RG and LG in GC patients. METHODS: We reviewed all gastric adenocarcinoma patients who underwent curative gastrectomy by minimally invasive approach in our institution from 2009 to 2022...
April 17, 2024: Journal of Surgical Oncology
https://read.qxmd.com/read/38629884/click-detection-rate-variability-of-central-north-pacific-sperm-whales-from-passive-acoustic-towed-arrays
#19
JOURNAL ARTICLE
Yvonne M Barkley, Karlina P B Merkens, Megan Wood, Erin M Oleson, Tiago A Marques
Passive acoustic monitoring (PAM) is an optimal method for detecting and monitoring cetaceans as they frequently produce sound while underwater. Cue counting, counting acoustic cues of deep-diving cetaceans instead of animals, is an alternative method for density estimation, but requires an average cue production rate to convert cue density to animal density. Limited information about click rates exists for sperm whales in the central North Pacific Ocean. In the absence of acoustic tag data, we used towed hydrophone array data to calculate the first sperm whale click rates from this region and examined their variability based on click type, location, distance of whales from the array, and group size estimated by visual observers...
April 1, 2024: Journal of the Acoustical Society of America
https://read.qxmd.com/read/38629883/acoustic-response-and-ambient-pressure-sensitivity-characterization-of-sonovue-for-noninvasive-pressure-estimation
#20
JOURNAL ARTICLE
Roozbeh H Azami, Flemming Forsberg, John R Eisenbrey, Kausik Sarkar
Subharmonic aided pressure estimation (SHAPE) is a noninvasive pressure measurement technique based on the pressure dependent subharmonic signal from contrast microbubbles. Here, SonoVue microbubble with a sulfur hexafluoride (SF6) core, was investigated for use in SHAPE. The study uses excitations of 25-700 kPa peak negative pressure (PNP) and 3 MHz frequency over eight pressurization cycles between atmospheric pressure and overpressures, ranging from 0 to 25 kPa (0 to 186 mm Hg)...
April 1, 2024: Journal of the Acoustical Society of America
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