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926 Results Found

  • Article
  • Open Access
9 Citations
2,820 Views
12 Pages

Enhancing Early Detection of Sepsis in Neonates through Multimodal Biosignal Integration: A Study of Pulse Oximetry, Near-Infrared Spectroscopy (NIRS), and Skin Temperature Monitoring

  • Nicoleta Lungu,
  • Daniela-Eugenia Popescu,
  • Ana Maria Cristina Jura,
  • Mihaela Zaharie,
  • Mihai-Andrei Jura,
  • Ioana Roșca and
  • Mărioara Boia

Sepsis continues to be challenging to diagnose due to its non-specific clinical signs and symptoms, emphasizing the importance of early detection. Our study aimed to enhance the accuracy of sepsis diagnosis by integrating multimodal monitoring techno...

  • Article
  • Open Access
6 Citations
3,166 Views
11 Pages

To reduce the use of insecticides, silo operators are reconsidering their practices and implementing integrated pest management (IPM) to manage insect infestations. IPM requires the early detection of insects to react before infestation spread or to...

  • Article
  • Open Access
3 Citations
2,963 Views
20 Pages

7 February 2025

In the pharmaceutical industry, freeze-drying is crucial for the stability of active pharmaceutical ingredients (APIs). Monitoring this complex process presents challenges as traditional methods often lack real-time insights, potentially leading to q...

  • Article
  • Open Access
11 Citations
4,075 Views
15 Pages

Sensor Location Optimization of Wireless Wearable fNIRS System for Cognitive Workload Monitoring Using a Data-Driven Approach for Improved Wearability

  • Masudur R. Siddiquee,
  • Roozbeh Atri,
  • J. Sebastian Marquez,
  • S. M. Shafiul Hasan,
  • Rodrigo Ramon and
  • Ou Bai

7 September 2020

Functional Near-Infrared Spectroscopy (fNIRS) is a hemodynamic modality in human cognitive workload assessment receiving popularity due to its easier implementation, non-invasiveness, low cost and other benefits from the signal-processing point of vi...

  • Article
  • Open Access
18 Citations
5,436 Views
12 Pages

Monitoring the Processing of Dry Fermented Sausages with a Portable NIRS Device

  • Alberto González-Mohino,
  • Trinidad Pérez-Palacios,
  • Teresa Antequera,
  • Jorge Ruiz-Carrascal,
  • Lary Souza Olegario and
  • Silvia Grassi

14 September 2020

This work studies the ability of a MicroNIR (VIAVI, Santa Rosa, CA) device to monitor the dry fermented sausage process with the use of multivariate data analysis. Thirty sausages were made and subjected to dry fermentation, which was divided into fo...

  • Review
  • Open Access
106 Citations
17,129 Views
31 Pages

18 April 2019

Near-infrared spectroscopy (NIRS) is an optical technique that can measure brain tissue oxygenation and haemodynamics in real-time and at the patient bedside allowing medical doctors to access important physiological information. However, despite thi...

  • Article
  • Open Access
2 Citations
4,265 Views
15 Pages

A NIRS-Based Technique for Monitoring Brain Tissue Oxygenation in Stroke Patients

  • Josefina Gutierrez-Martinez,
  • Gabriel Vega-Martinez,
  • Cinthya Lourdes Toledo-Peral,
  • Jorge Airy Mercado-Gutierrez and
  • Jimena Quinzaños-Fresnedo

21 December 2024

Stroke is a global health issue caused by reduced blood flow to the brain, which leads to severe motor disabilities. Measuring oxygen levels in the brain tissue is crucial for understanding the severity and evolution of stroke. While CT or fMRI scans...

  • Review
  • Open Access
2 Citations
2,338 Views
34 Pages

The demand for safe, high-quality, and minimally processed food has intensified interest in non-destructive analytical techniques capable of assessing freshness and safety in real time. Among these, near-infrared (NIR) spectroscopy and biosensors hav...

  • Article
  • Open Access
5 Citations
2,557 Views
15 Pages

Agricultural soils serve as crucial storage sites for soil organic carbon (SOC). Their appropriate management is pivotal for mitigating climate change. Continuous monitoring is imperative to evaluate spatial and temporal changes in SOC within agricul...

  • Article
  • Open Access
2 Citations
1,457 Views
9 Pages

Correlation of Near-Infrared Spectroscopy (NIRS) with Invasive Arterial Pressure Monitoring during Aortic Coarctation Surgery in Pediatric Patients

  • Jelena Pjevalica Dragic,
  • Tatjana Zecevic,
  • Ivan Divac,
  • Andrija Pavlovic,
  • Dejan Bisenic,
  • Luka Stanisic,
  • Jasna Kalanj,
  • Igor Stefanovic,
  • Dejan Nikolic and
  • Vladimir Milovanovic

20 September 2024

Aortic coarctation surgery in pediatric patients requires the placement of two arterial cannulas to monitor pressure gradients and surgical correction adequacy. Near-infrared spectroscopy (NIRS) monitoring provides insight into regional blood flow. T...

  • Article
  • Open Access
6,064 Views
16 Pages

Wearable Wireless Functional Near-Infrared Spectroscopy System for Cognitive Activity Monitoring

  • Mauro Victorio,
  • James Dieffenderfer,
  • Tanner Songkakul,
  • Josh Willeke,
  • Alper Bozkurt and
  • Vladimir A. Pozdin

6 February 2025

From learning environments to battlefields to marketing teams, the desire to measure cognition and cognitive fatigue in real time has been a grand challenge in optimizing human performance. Near-infrared spectroscopy (NIRS) is an effective optical te...

  • Article
  • Open Access
32 Citations
8,974 Views
28 Pages

A New Remote Sensing Dryness Index Based on the Near-Infrared and Red Spectral Space

  • Jieyun Zhang,
  • Qingling Zhang,
  • Anming Bao and
  • Yujuan Wang

22 February 2019

Soil moisture, as a crucial indicator of dryness, is an important research topic for dryness monitoring. In this study, we propose a new remote sensing dryness index for measuring soil moisture from spectral space. We first established a spectral spa...

  • Article
  • Open Access
12 Citations
3,987 Views
12 Pages

Optical Monitoring of Breathing Patterns and Tissue Oxygenation: A Potential Application in COVID-19 Screening and Monitoring

  • Aaron James Mah,
  • Thien Nguyen,
  • Leili Ghazi Zadeh,
  • Atrina Shadgan,
  • Kosar Khaksari,
  • Mehdi Nourizadeh,
  • Ali Zaidi,
  • Soongho Park,
  • Amir H. Gandjbakhche and
  • Babak Shadgan

26 September 2022

The worldwide outbreak of the novel Coronavirus (COVID-19) has highlighted the need for a screening and monitoring system for infectious respiratory diseases in the acute and chronic phase. The purpose of this study was to examine the feasibility of...

  • Article
  • Open Access
4 Citations
4,153 Views
17 Pages

Monitoring Changes in Oxygen Muscle during Exercise with High-Flow Nasal Cannula Using Wearable NIRS Biosensors

  • Felipe Contreras-Briceño,
  • Maximiliano Espinosa-Ramírez,
  • Augusta Rivera-Greene,
  • Camila Guerra-Venegas,
  • Antonia Lungenstrass-Poulsen,
  • Victoria Villagra-Reyes,
  • Raúl Caulier-Cisterna,
  • Oscar F. Araneda and
  • Ginés Viscor

13 November 2023

Exercise increases the cost of breathing (COB) due to increased lung ventilation (V˙E), inducing respiratory muscles deoxygenation (∇SmO2), while the increase in workload implies ∇SmO2 in locomotor muscles. This phenomenon has been p...

  • Article
  • Open Access
1 Citations
4,783 Views
14 Pages

Individuals often lack field-based tools to monitor exercise effectiveness. New sensing methods may allow for an improved measurement of the individualized response to exercise by monitoring oxygen kinetics directly in muscle tissue. This study aimed...

  • Article
  • Open Access
11 Citations
3,571 Views
13 Pages

Usage of Near-Infrared Spectroscopy for Inline Monitoring the Degree of Curing in RTM Processes

  • Moritz Salzmann,
  • Yannick Blößl,
  • Andrea Todorovic and
  • Ralf Schledjewski

17 September 2021

Near-infrared spectroscopy (NIR) was implemented in the resin transfer molding (RTM) process to inline monitor the degree of curing of a bio-based epoxy resin, which consists of epoxidized linseed oil (resin) and citric acid (hardener), respectively....

  • Letter
  • Open Access
9 Citations
2,986 Views
7 Pages

The Influence of the Presence of Borax and NaCl on Water Absorption Pattern during Sturgeon Caviar (Acipenser transmontanus) Storage

  • Massimo Brambilla,
  • Marina Buccheri,
  • Maurizio Grassi,
  • Annamaria Stellari,
  • Mario Pazzaglia,
  • Elio Romano and
  • Tiziana M. P. Cattaneo

15 December 2020

Sturgeon caviar quality relies not only on the perfect dosage of the ingredients but also on the long sturgeon breeding cycle (about 12–15 years) and the exact timing of the egg extraction. For the improvement and the promotion of Italian cavia...

  • Feature Paper
  • Review
  • Open Access
15 Citations
7,880 Views
24 Pages

Optics Based Label-Free Techniques and Applications in Brain Monitoring

  • Priya Karthikeyan,
  • Sadegh Moradi,
  • Hany Ferdinando,
  • Zuomin Zhao and
  • Teemu Myllylä

24 March 2020

Functional near-infrared spectroscopy (fNIRS) has been utilized already around three decades for monitoring the brain, in particular, oxygenation changes in the cerebral cortex. In addition, other optical techniques are currently developed for in viv...

  • Article
  • Open Access
39 Citations
6,137 Views
14 Pages

Near-Infrared Spectroscopy Monitoring in Cardiac and Noncardiac Surgery: Pairwise and Network Meta-Analyses

  • Christian Ortega-Loubon,
  • Francisco Herrera-Gómez,
  • Coralina Bernuy-Guevara,
  • Pablo Jorge-Monjas,
  • Carlos Ochoa-Sangrador,
  • Juan Bustamante-Munguira,
  • Eduardo Tamayo and
  • F. Javier Álvarez

14 December 2019

Goal-directed therapy based on brain-oxygen saturation (bSo2) is controversial and hotly debated. While meta-analyses of aggregated data have shown no clinical benefit for brain near-infrared spectroscopy (NIRS)-based interventions after cardiac surg...

  • Review
  • Open Access
89 Citations
30,970 Views
22 Pages

27 June 2022

The past few decades have seen ongoing development of continuous glucose monitoring (CGM) systems that are noninvasive and accurately measure blood glucose levels. The conventional finger-prick method, though accurate, is not feasible for use multipl...

  • Review
  • Open Access
43 Citations
12,333 Views
20 Pages

Brain–Computer Interfacing Using Functional Near-Infrared Spectroscopy (fNIRS)

  • Kogulan Paulmurugan,
  • Vimalan Vijayaragavan,
  • Sayantan Ghosh,
  • Parasuraman Padmanabhan and
  • Balázs Gulyás

13 October 2021

Functional Near-Infrared Spectroscopy (fNIRS) is a wearable optical spectroscopy system originally developed for continuous and non-invasive monitoring of brain function by measuring blood oxygen concentration. Recent advancements in brain–computer i...

  • Article
  • Open Access
7 Citations
3,846 Views
10 Pages

27 August 2018

This study describes an innovative in-line near-infrared (NIR) process monitoring method for the quantification of the total polyphenolic content (TPC) of Ajuga genevensis dry extracts. The dry extract was obtained in a fluidized bed processor, by sp...

  • Article
  • Open Access
32 Citations
8,534 Views
23 Pages

Fiberless, Multi-Channel fNIRS-EEG System Based on Silicon Photomultipliers: Towards Sensitive and Ecological Mapping of Brain Activity and Neurovascular Coupling

  • Antonio Maria Chiarelli,
  • David Perpetuini,
  • Pierpaolo Croce,
  • Giuseppe Greco,
  • Leonardo Mistretta,
  • Raimondo Rizzo,
  • Vincenzo Vinciguerra,
  • Mario Francesco Romeo,
  • Filippo Zappasodi and
  • Giuseppe Costantino Giaconia
  • + 3 authors

16 May 2020

Portable neuroimaging technologies can be employed for long-term monitoring of neurophysiological and neuropathological states. Functional Near-Infrared Spectroscopy (fNIRS) and Electroencephalography (EEG) are highly suited for such a purpose. Their...

  • Article
  • Open Access
2 Citations
4,428 Views
7 Pages

14 June 2023

We examined the utility of regional oxygen saturation (rSO2) measurement using near-infrared spectroscopy (NIRS) for monitoring lower-limb blood flow and estimate the safe balloon occlusion/deflation time in patients with PAS who underwent prophylact...

  • Review
  • Open Access
44 Citations
14,985 Views
20 Pages

26 August 2021

In recent years, cerebral blood oxygen saturation has become a key indicator during the perioperative period. Cerebral blood oxygen saturation monitoring is conducive to the early diagnosis and treatment of cerebral ischemia and hypoxia. The present...

  • Review
  • Open Access
7 Citations
9,992 Views
20 Pages

16 October 2024

Background: Recent years have seen a surge of interest in dual-modality imaging systems that integrate functional near-infrared spectroscopy (fNIRS) and electroencephalography (EEG) to probe brain function. This review aims to explore the advancement...

  • Feature Paper
  • Article
  • Open Access
23 Citations
6,844 Views
14 Pages

1 August 2016

The present study develops further our previous study of in vivo monitoring at the molecular level of the embryonic development in Japanese medaka fish (Oryzias latipes) using near-infrared (NIR) spectroscopy and NIR imaging. NIR spectra were measure...

  • Article
  • Open Access
21 Citations
8,089 Views
11 Pages

NIR Monitoring of Ammonia in Anaerobic Digesters Using a Diffuse Reflectance Probe

  • Chitra S. Raju,
  • Mette Marie Løkke,
  • Sutaryo Sutaryo,
  • Alastair J. Ward and
  • Henrik B. Møller

21 February 2012

The feasibility of using a diffuse reflectance probe attached to a near infrared spectrometer to monitor the total ammonia nitrogen (TAN) content in an anaerobic digester run on cattle manure was investigated; as a previous study has indicated that t...

  • Article
  • Open Access
2 Citations
3,566 Views
17 Pages

Comparing NIRS and Pulse Oximetry for Cerebral Oxygen Saturation During Hypoxia Testing

  • Vasilios Alevizakos,
  • Andreas Werner,
  • Lisa-Marie Schiller,
  • Constantin von See and
  • Marcus Schiller

24 October 2024

Objective: This study evaluates the suitability of cerebral oximetry using near-infrared spectroscopy (NIRS) compared to traditional pulse oximetry (SpO2) for measuring cerebral oxygen saturation during hypoxia testing, aiming to enhance safety durin...

  • Article
  • Open Access
2 Citations
3,074 Views
16 Pages

13 April 2024

Near-infrared spectroscopy has become a common quality assessment tool for fishmeal products during the last two decades. However, to date it has not been used for active online quality monitoring during fishmeal processing. Our aim was to investigat...

  • Article
  • Open Access
12 Citations
3,189 Views
20 Pages

Whole-Head Functional Near-Infrared Spectroscopy as an Ecological Monitoring Tool for Assessing Cortical Activity in Parkinson’s Disease Patients at Different Stages

  • Augusto Bonilauri,
  • Francesca Sangiuliano Intra,
  • Federica Rossetto,
  • Francesca Borgnis,
  • Giuseppe Baselli and
  • Francesca Baglio

28 November 2022

Functional near-infrared spectroscopy (fNIRS) is increasingly employed as an ecological neuroimaging technique in assessing age-related chronic neurological disorders, such as Parkinson’s disease (PD), mainly providing a cross-sectional charact...

  • Article
  • Open Access
11 Citations
2,967 Views
13 Pages

A Feasibility Study towards the On-Line Quality Assessment of Pesto Sauce Production by NIR and Chemometrics

  • Daniele Tanzilli,
  • Alessandro D’Alessandro,
  • Samuele Tamelli,
  • Caterina Durante,
  • Marina Cocchi and
  • Lorenzo Strani

18 April 2023

The food industry needs tools to improve the efficiency of their production processes by minimizing waste, detecting timely potential process issues, as well as reducing the efforts and workforce devoted to laboratory analysis while, at the same time...

  • Article
  • Open Access
3 Citations
2,710 Views
11 Pages

16 May 2024

Background: Driving fatigue is a significant concern in contemporary society, contributing to a considerable number of traffic accidents annually. This study explores novel methods for fatigue detection, aiming to enhance driving safety. Methods: Thi...

  • Article
  • Open Access
4 Citations
3,672 Views
14 Pages

Near-Infrared Spectroscopy for the In Vivo Monitoring of Biodegradable Implants in Rats

  • Hafiz Wajahat Hassan,
  • Eduarda Mota-Silva,
  • Valeria Grasso,
  • Leon Riehakainen,
  • Jithin Jose,
  • Luca Menichetti and
  • Peyman Mirtaheri

18 February 2023

Magnesium (Mg) alloys possess unique properties that make them ideal for use as biodegradable implants in clinical applications. However, reports on the in vivo assessment of these alloys are insufficient. Thus, monitoring the degradation of Mg and i...

  • Article
  • Open Access
4 Citations
3,314 Views
13 Pages

19 December 2024

Bone fractures are associated with hypoxia, but no longitudinal studies of perfusion measurements in human patients have been reported despite the clinical and research potential. In this longitudinal observational cohort study, the near-infrared spe...

  • Article
  • Open Access
4 Citations
2,350 Views
33 Pages

17 November 2023

The implementation of Nature-based Solutions (NbS) in urban environments is gaining momentum as a means to address environmental challenges and promote sustainable development. However, effective monitoring and evaluation are essential to assess the...

  • Article
  • Open Access
330 Views
20 Pages

16 December 2025

Soil organic matter (SOM) governs critical soil functions, including carbon storage, nutrient cycling, and microbial activity; yet the specific fractions responsible for its spectral predictability remain poorly understood. This study addresses a fun...

  • Article
  • Open Access
5 Citations
3,911 Views
21 Pages

Intraoperative Optical Monitoring of Spinal Cord Hemodynamics Using Multiwavelength Imaging System

  • Nicolas Mainard,
  • Olivier Tsiakaka,
  • Songlin Li,
  • Julien Denoulet,
  • Karim Messaoudene,
  • Raphael Vialle and
  • Sylvain Feruglio

19 May 2022

The spinal cord is a major structure of the central nervous system allowing, among other things, the transmission of afferent sensory and efferent motor information. During spinal surgery, such as scoliosis correction, this structure can be damaged,...

  • Article
  • Open Access
10 Citations
6,543 Views
24 Pages

Development of an Integrated EEG/fNIRS Brain Function Monitoring System

  • Manal Mohamed,
  • Eunjung Jo,
  • Nourelhuda Mohamed,
  • Minhee Kim,
  • Jeong-dae Yun and
  • Jae Gwan Kim

19 November 2021

In this study, a fully integrated electroencephalogram/functional near-infrared spectroscopy (EEG/fNIRS) brain monitoring system was designed to fulfill the demand for a miniaturized, light-weight, low-power-consumption, and low-cost brain monitoring...

  • Review
  • Open Access
13 Citations
9,187 Views
19 Pages

Causes, Effects and Methods of Monitoring Gas Exchange Disturbances during Equine General Anaesthesia

  • Elżbieta Stefanik,
  • Olga Drewnowska,
  • Barbara Lisowska and
  • Bernard Turek

9 July 2021

Horses, due to their unique anatomy and physiology, are particularly prone to intraoperative cardiopulmonary disorders. In dorsally recumbent horses, chest wall movement is restricted and the lungs are compressed by the abdominal organs, leading to t...

  • Article
  • Open Access
6 Citations
7,513 Views
12 Pages

Hybrid Integrated Wearable Patch for Brain EEG-fNIRS Monitoring

  • Boyu Li,
  • Mingjie Li,
  • Jie Xia,
  • Hao Jin,
  • Shurong Dong and
  • Jikui Luo

25 July 2024

Synchronous monitoring electroencephalogram (EEG) and functional near-infrared spectroscopy (fNIRS) have received significant attention in brain science research for their provision of more information on neuro-loop interactions. There is a need for...

  • Article
  • Open Access
1,161 Views
18 Pages

SafeBladder: Development and Validation of a Non-Invasive Wearable Device for Neurogenic Bladder Volume Monitoring

  • Diogo Sousa,
  • Filipa Santos,
  • Luana Rodrigues,
  • Rui Prado,
  • Susana Moreira and
  • Dulce Oliveira

3 September 2025

Neurogenic bladder is a debilitating condition caused by neurological dysfunction that impairs urinary control, often requiring timed intermittent catheterisation. Although effective, intermittent catheterisation is invasive, uncomfortable, and assoc...

  • Article
  • Open Access
1,248 Views
18 Pages

Association of Diabetes with Greater Mid-Term Cognitive Decline After Carotid Surgery

  • Ágnes Dóra Sándor,
  • Péter Márk Sikos,
  • Gabriel Varinot,
  • Fotis Kallinikos,
  • Csongor Mánfai,
  • Mandula Ifju,
  • Tibor Kézi,
  • Zsófia Czinege,
  • András Szabó and
  • Andrea Székely
  • + 1 author

Background/Objectives: Long-term cognitive outcomes after carotid surgery are influenced by diabetes and intraoperative changes. We aimed to analyze the postoperative cognitive changes in diabetic patients and nondiabetic patients after carotid endar...

  • Article
  • Open Access
8 Citations
4,541 Views
18 Pages

21 April 2023

(1) Background: Traumatic brain injuries (TBI) result in high fatality and lifelong disability rates. Two of the primary biomarkers in assessing TBI are intracranial pressure (ICP) and brain oxygenation. Both are assessed using standalone techniques,...

  • Article
  • Open Access
2 Citations
2,318 Views
15 Pages

NIR Spectroscopy for the Online Monitoring of Water and Olive Oil Content in Pomace during the Extraction Process

  • Alessandro Leone,
  • Antonio Berardi,
  • Giovanni Antonelli,
  • Cosimo Damiano Dellisanti and
  • Antonia Tamborrino

The main challenge of this scientific work was the implementation on an industrial olive oil extraction plant of an NIR device for the multispectral analysis of pomace to predict the percentage of humidity and oil contained in it. Subsequent to the i...

  • Article
  • Open Access
9 Citations
3,480 Views
14 Pages

Validation of an Optical Technology for the Determination of pH in Milk during Yogurt Manufacture

  • Siqi Liu,
  • Fanny Contreras,
  • Ricardo S. Alemán,
  • Jhunior Marcía Fuentes,
  • Oscar Arango and
  • Manuel Castillo

30 August 2024

Current systems that allow inline pH control in the fermented dairy industry have drawbacks, such as protein adhesion on the non-glass pH probes, measurement distortion, frequent recalibration needs, and sensitivity to extreme pH conditions encounter...

  • Article
  • Open Access
20 Citations
3,518 Views
23 Pages

Interpretable Machine Learning Methods for Monitoring Polymer Degradation in Extrusion of Polylactic Acid

  • Nimra Munir,
  • Ross McMorrow,
  • Konrad Mulrennan,
  • Darren Whitaker,
  • Seán McLoone,
  • Minna Kellomäki,
  • Elina Talvitie,
  • Inari Lyyra and
  • Marion McAfee

28 August 2023

This work investigates real-time monitoring of extrusion-induced degradation in different grades of PLA across a range of process conditions and machine set-ups. Data on machine settings together with in-process sensor data, including temperature, pr...

  • Article
  • Open Access
1,155 Views
14 Pages

9 June 2025

This observational pilot study investigated neurocardiovascular responses to an active stand test using continuous physiological monitoring and functional data analysis (FDA) in older women. A sample of 25 community-dwelling female adults aged 59&nda...

  • Article
  • Open Access
5 Citations
2,643 Views
21 Pages

25 September 2022

During the production process, a whole range of analytical methods must be developed to monitor the quality of production and the desired product(s). Most of those methods belong to the group of off-line monitoring methods and are usually recognized...

  • Article
  • Open Access
20 Citations
3,649 Views
20 Pages

Vis/NIR Spectroscopy and Vis/NIR Hyperspectral Imaging for Non-Destructive Monitoring of Apricot Fruit Internal Quality with Machine Learning

  • Tiziana Amoriello,
  • Roberto Ciorba,
  • Gaia Ruggiero,
  • Francesca Masciola,
  • Daniela Scutaru and
  • Roberto Ciccoritti

10 January 2025

The fruit supply chain requires simple, non-destructive, and fast tools for quality evaluation both in the field and during the post-harvest phase. In this study, a portable visible and near-infrared (Vis/NIR) spectrophotometer and a portable Vis/NIR...

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