journal
https://read.qxmd.com/read/38534571/influence-of-skin-marker-positioning-and-their-combinations-on-hip-joint-center-estimation-using-the-functional-method
#1
JOURNAL ARTICLE
Lucas Martinez, Matthieu Lalevée, Thomas Poirier, Helena Brunel, Jean Matsoukis, Stéphane Van Driessche, Fabien Billuart
Accurate estimation of hip joint center (HJC) position is crucial during gait analysis. HJC is obtained with predictive or functional methods. But in the functional method, there is no consensus on where to place the skin markers and which combination to use. The objective of this study was to analyze how different combinations of skin markers affect the estimation of HJC position relative to predictive methods. Forty-one healthy volunteers were included in this study; thirteen markers were placed on the pelvis and hip of each subject's lower limbs...
March 21, 2024: Bioengineering
https://read.qxmd.com/read/38534570/coronal-knee-alignment-and-tibial-rotation-in-total-knee-arthroplasty-a-prospective-cohort-study-of-patients-with-end-stage-osteoarthritis
#2
JOURNAL ARTICLE
Andrej Strahovnik, Igor Strahovnik, Samo Karel Fokter
Several studies have found a relationship between the rotational anatomy of the distal femur and the overall coronal lower limb alignment in knees with osteoarthritis (OA). Less is known about the rotation of the proximal tibia, especially in the context of total knee arthroplasty (TKA), where one of the goals of the surgery is to achieve the appropriate component-to-component rotation. The aim of this study was to investigate the relationship between the coronal alignment of the lower extremity and the relative proximal tibial rotation...
March 21, 2024: Bioengineering
https://read.qxmd.com/read/38534569/leveraging-deep-learning-for-fine-grained-categorization-of-parkinson-s-disease-progression-levels-through-analysis-of-vocal-acoustic-patterns
#3
JOURNAL ARTICLE
Hadi Sedigh Malekroodi, Nuwan Madusanka, Byeong-Il Lee, Myunggi Yi
Speech impairments often emerge as one of the primary indicators of Parkinson's disease (PD), albeit not readily apparent in its early stages. While previous studies focused predominantly on binary PD detection, this research explored the use of deep learning models to automatically classify sustained vowel recordings into healthy controls, mild PD, or severe PD based on motor symptom severity scores. Popular convolutional neural network (CNN) architectures, VGG and ResNet, as well as vision transformers, Swin, were fine-tuned on log mel spectrogram image representations of the segmented voice data...
March 21, 2024: Bioengineering
https://read.qxmd.com/read/38534568/enhanced-nuclei-segmentation-and-classification-via-category-descriptors-in-the-sam-model
#4
JOURNAL ARTICLE
Miguel Luna, Philip Chikontwe, Sang Hyun Park
Segmenting and classifying nuclei in H&E histopathology images is often limited by the long-tailed distribution of nuclei types. However, the strong generalization ability of image segmentation foundation models like the Segment Anything Model (SAM) can help improve the detection quality of rare types of nuclei. In this work, we introduce category descriptors to perform nuclei segmentation and classification by prompting the SAM model. We close the domain gap between histopathology and natural scene images by aligning features in low-level space while preserving the high-level representations of SAM...
March 21, 2024: Bioengineering
https://read.qxmd.com/read/38534567/wearable-12-lead-ecg-acquisition-using-a-novel-deep-learning-approach-from-frank-or-easi-leads-with-clinical-validation
#5
JOURNAL ARTICLE
Fan Fu, Dacheng Zhong, Jiamin Liu, Tianxiang Xu, Qin Shen, Wei Wang, Songsheng Zhu, Jianqing Li
The 12-lead electrocardiogram (ECG) is crucial in assessing patient decisions. However, portable ECG devices capable of acquiring a complete 12-lead ECG are scarce. For the first time, a deep learning-based method is proposed to reconstruct the 12-lead ECG from Frank leads (VX , VY , and VZ ) or EASI leads (VES , VAS , and VAI ). The innovative ECG reconstruction network called M2Eformer is composed of a 2D-ECGblock and a ProbDecoder module. The 2D-ECGblock module adaptively segments EASI leads into multi-periods based on frequency energy, transforming the 1D time series into a 2D tensor representing within-cycle and between-cycle variations...
March 21, 2024: Bioengineering
https://read.qxmd.com/read/38534566/the-influence-of-cold-therapy-on-the-physical-working-capacity-at-the-electromyographic-threshold-for-consecutive-exercise-sessions
#6
JOURNAL ARTICLE
Rami E Maasri, Jonathan R Jarvie, Jacob S Karski, Logan J Smith, Moh H Malek
BACKGROUND: The purpose of this study was to determine whether cold therapy after the first exercise test influences the physical working capacity at the fatigue threshold (PWCFT ) during the second exercise test. We hypothesized that cold therapy would delay the onset of PWCFT for the second exercise test relative to the control visit (i.e., no cold therapy). METHODS: Eight healthy college-aged men volunteered for the present study. For each of the two visits, subjects performed incremental, single-leg, knee-extensor ergometer, followed by either resting for 30 min (control visit) or having a cold pack applied for 15 min and then resting for 15 min (experimental visit)...
March 21, 2024: Bioengineering
https://read.qxmd.com/read/38534565/application-of-diy-electrodermal-activity-wristband-in-detecting-stress-and-affective-responses-of-students
#7
JOURNAL ARTICLE
Kenneth Y T Lim, Minh Tuan Nguyen Thien, Minh Anh Nguyen Duc, Hugo F Posada-Quintero
This paper describes the analysis of electrodermal activity (EDA) in the context of students' scholastic activity. Taking a multidisciplinary, citizen science and maker-centric approach, low-cost, bespoken wearables, such as a mini weather station and biometric wristband, were built. To investigate both physical health as well as stress, the instruments were first validated against research grade devices. Following this, a research experiment was created and conducted in the context of students' scholastic activity...
March 20, 2024: Bioengineering
https://read.qxmd.com/read/38534564/effects-of-stroboscopic-vision-on-depth-jump-motor-control-a-biomechanical-analysis
#8
JOURNAL ARTICLE
Kenneth D Harrison, Christopher J Dakin, Anne Z Beethe, Talin Louder
Researchers commonly use the 'free-fall' paradigm to investigate motor control during landing impacts, particularly in drop landings and depth jumps (DJ). While recent studies have focused on the impact of vision on landing motor control, previous research fully removed continuous visual input, limiting ecological validity. The aim of this investigation was to evaluate the effects of stroboscopic vision on depth jump (DJ) motor control. Ground reaction forces (GRF) and lower-extremity surface electromyography (EMG) were collected for 20 young adults (11 male; 9 female) performing six depth jumps (0...
March 20, 2024: Bioengineering
https://read.qxmd.com/read/38534563/unlocking-the-potential-of-stem-cell-microenvironments-in-vitro
#9
REVIEW
Chiara Scodellaro, Raquel R Pina, Frederico Castelo Ferreira, Paola Sanjuan-Alberte, Tiago G Fernandes
The field of regenerative medicine has recently witnessed groundbreaking advancements that hold immense promise for treating a wide range of diseases and injuries. At the forefront of this revolutionary progress are stem cells. Stem cells typically reside in specialized environments in vivo, known as microenvironments or niches, which play critical roles in regulating stem cell behavior and determining their fate. Therefore, understanding the complex microenvironments that surround stem cells is crucial for advancing treatment options in regenerative medicine and tissue engineering applications...
March 19, 2024: Bioengineering
https://read.qxmd.com/read/38534562/the-lower-limb-muscle-co-activation-map-during-human-locomotion-from-slow-walking-to-running
#10
JOURNAL ARTICLE
Lorenzo Fiori, Stefano Filippo Castiglia, Giorgia Chini, Francesco Draicchio, Floriana Sacco, Mariano Serrao, Antonella Tatarelli, Tiwana Varrecchia, Alberto Ranavolo
The central nervous system (CNS) controls movements and regulates joint stiffness with muscle co-activation, but until now, few studies have examined muscle pairs during running. This study aims to investigate differences in lower limb muscle coactivation during gait at different speeds, from walking to running. Nineteen healthy runners walked and ran at speeds ranging from 0.8 km/h to 9.3 km/h. Twelve lower limb muscles' co-activation was calculated using the time-varying multi-muscle co-activation function (TMCf) with global, flexor-extension, and rostro-caudal approaches...
March 19, 2024: Bioengineering
https://read.qxmd.com/read/38534561/the-impact-of-defect-size-on-bone-healing-in-critical-size-bone-defects-investigated-on-a-rat-femur-defect-model-comparing-two-treatment-methods
#11
JOURNAL ARTICLE
Andreas Kammerer, Frederik Alexander Hartmann, Christoph Nau, Maximilian Leiblein, Alexander Schaible, Jonas Neijhoft, Dirk Henrich, René Verboket, Maren Janko
Critical-size bone defects up to 25 cm can be treated successfully using the induced membrane technique established by Masquelet. To shorten this procedure, human acellular dermis (HAD) has had success in replacing this membrane in rat models. The aim of this study was to compare bone healing for smaller and larger defects using an induced membrane and HAD in a rat model. Using our established femoral defect model in rats, the animals were placed into four groups and defects of 5 mm or 10 mm size were set, either filling them with autologous spongiosa and surrounding the defect with HAD or waiting for the induced membrane to form around a cement spacer and filling this cavity in a second operation with a cancellous bone graft...
March 19, 2024: Bioengineering
https://read.qxmd.com/read/38534560/comparison-of-immediate-neuromodulatory-effects-between-focal-vibratory-and-electrical-sensory-stimulations-after-stroke
#12
JOURNAL ARTICLE
Legeng Lin, Wanyi Qing, Yanhuan Huang, Fuqiang Ye, Wei Rong, Waiming Li, Jiao Jiao, Xiaoling Hu
Focal vibratory stimulation (FVS) and neuromuscular electrical stimulation (NMES) are promising technologies for sensory rehabilitation after stroke. However, the differences between these techniques in immediate neuromodulatory effects on the poststroke cortex are not yet fully understood. In this research, cortical responses in persons with chronic stroke ( n = 15) and unimpaired controls ( n = 15) were measured by whole-brain electroencephalography (EEG) when FVS and NMES at different intensities were applied transcutaneously to the forearm muscles...
March 17, 2024: Bioengineering
https://read.qxmd.com/read/38534559/application-of-multivariate-regression-and-artificial-neural-network-modelling-for-prediction-of-physicochemical-properties-of-grape-skin-compost
#13
JOURNAL ARTICLE
Tea Sokač Cvetnić, Korina Krog, Davor Valinger, Jasenka Gajdoš Kljusurić, Maja Benković, Tamara Jurina, Tamara Jakovljević, Ivana Radojčić Redovniković, Ana Jurinjak Tušek
The reusability of by-products in the food industry is consistent with sustainable and greener production; therefore, the aim of this paper was to evaluate the applicability of multiple linear regression (MLR), piecewise linear regression (PLR) and artificial neural network models (ANN) to the prediction of grape-skin compost's physicochemical properties (moisture, dry matter, organic matter, ash content, carbon content, nitrogen content, C/N ratio, total colour change of compost samples, pH, conductivity, total dissolved solids and total colour change of compost extract samples) during in-vessel composting based on the initial composting conditions (air-flow rate, moisture content and day of sampling)...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534558/the-nitrogen-content-in-the-fruiting-body-and-mycelium-of-pleurotus-ostreatus-and-its-utilization-as-a-medium-component-in-thraustochytrid-fermentation
#14
JOURNAL ARTICLE
Lina Schütte, Katharina Hausmann, Christoph Schwarz, Franziska Ersoy, Ralf G Berger
Following the idea of a circular bioeconomy, the use of side streams as substitutes for cultivation media (components) in bioprocesses would mean an enormous economic and ecological advantage. Costly compounds in conventional media for the production of the triterpene squalene in thraustochytrids are the main carbon source and complex nitrogen sources. Among other side streams examined, extracts from the spent mycelium of the basidiomycete Pleurotus ostreatus were best-suited to acting as alternative nitrogen sources in cultivation media for thraustochytrids...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534557/adaptive-network-model-for-assisting-people-with-disabilities-through-crowd-monitoring-and-control
#15
JOURNAL ARTICLE
Alicia Falcon-Caro, Evtim Peytchev, Saeid Sanei
Here, we present an effective application of adaptive cooperative networks, namely assisting disables in navigating in a crowd in a pandemic or emergency situation. To achieve this, we model crowd movement and introduce a cooperative learning approach to enable cooperation and self-organization of the crowd members with impaired health or on wheelchairs to ensure their safe movement in the crowd. Here, it is assumed that the movement path and the varying locations of the other crowd members can be estimated by each agent...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534556/biohydrogen-production-from-waste-black-cumin-nigella-sativa-extract-liquid
#16
JOURNAL ARTICLE
Nesrin Dursun, Hakki Gülşen
Hydrogen creates water during combustion. Therefore, it is expected to be the most promising environmentally friendly energy alternative in the coming years. This study used extract liquid obtained from the waste nigella sativa generated by the black cumin oil industry. The performance of biological hydrogen manufacturing via dark fermentation was investigated in the fluidized bed reactor (FBR) and completely stirred tank reactor (CSTR) under the operation conditions of pH 5.0, 4.0, and 6.0 and a hydraulic retention time (HRT) of 36 and 24 h...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534555/advances-in-biological-wastewater-treatment-processes-focus-on-low-carbon-energy-and-resource-recovery-in-biorefinery-context
#17
REVIEW
J Shanthi Sravan, Leonidas Matsakas, Omprakash Sarkar
Advancements in biological wastewater treatment with sustainable and circularity approaches have a wide scope of application. Biological wastewater treatment is widely used to remove/recover organic pollutants and nutrients from a diverse wastewater spectrum. However, conventional biological processes face challenges, such as low efficiency, high energy consumption, and the generation of excess sludge. To overcome these limitations, integrated strategies that combine biological treatment with other physical, chemical, or biological methods have been developed and applied in recent years...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534554/the-effect-of-a-new-generation-of-ankle-foot-orthoses-on-sloped-walking-in-children-with-hemiplegia-using-the-gait-real-time-analysis-interactive-lab-grail
#18
JOURNAL ARTICLE
Federica Camuncoli, Giorgia Malerba, Emilia Biffi, Eleonora Diella, Eugenio Di Stanislao, Guerrino Rosellini, Daniele Panzeri, Luigi Piccinini, Manuela Galli
Cerebral palsy poses challenges in walking, necessitating ankle foot orthoses (AFOs) for stability. Gait analysis, particularly on slopes, is crucial for effective AFO assessment. The study aimed to compare the performance of commercially available AFOs with a new sports-specific AFO in children with hemiplegic cerebral palsy and to assess the effects of varying slopes on gait. Eighteen participants, aged 6-11, with hemiplegia, underwent gait analysis using GRAIL technology. Two AFO types were tested on slopes (uphill +10 deg, downhill -5 deg, level-ground)...
March 16, 2024: Bioengineering
https://read.qxmd.com/read/38534553/off-label-use-of-an-external-hand-fixator-for-craniomaxillofacial-fractures-an-anatomical-feasibility-study
#19
JOURNAL ARTICLE
Florian Wichlas, Marco Necchi, Teresa Gruber, Valeska Hofmann, Susanne Deininger, Sebastian Hubertus Markus Deininger, Amelie Deluca, Eva Steidle-Kloc, Jan Pruszak, Jörn Wittig, Christian Deininger
BACKGROUND: The lack of resources limits the treatment of craniomaxillofacial fractures (CMF) in low-income countries (LIC). Therefore, Barton bandages and/or interdental wiring are considered in these regions. Fracture reduction is maintained by permanent occlusion for 6 weeks, which often leads to limited compliance and dissatisfying results. The aim of this cadaver-based study is to evaluate the feasibility of the use of an external face fixator (EFF) for the treatment of CMF, its biomechanical values and to define the optimal pin insertion points and angles...
March 15, 2024: Bioengineering
https://read.qxmd.com/read/38534552/dense-multi-scale-graph-convolutional-network-for-knee-joint-cartilage-segmentation
#20
JOURNAL ARTICLE
Christos Chadoulos, Dimitrios Tsaopoulos, Andreas Symeonidis, Serafeim Moustakidis, John Theocharis
In this paper, we propose a dense multi-scale adaptive graph convolutional network ( DMA-GCN ) method for automatic segmentation of the knee joint cartilage from MR images. Under the multi-atlas setting, the suggested approach exhibits several novelties, as described in the following. First, our models integrate both local-level and global-level learning simultaneously. The local learning task aggregates spatial contextual information from aligned spatial neighborhoods of nodes, at multiple scales, while global learning explores pairwise affinities between nodes, located globally at different positions in the image...
March 14, 2024: Bioengineering
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