Results 41 to 50 of about 1,910,679 (307)

Aging-dependent functional alterations of mitochondrial DNA (mtDNA) from human fibroblasts transferred into mtDNA-less cells [PDF]

open access: yes, 1996
To investigate the role that aging-dependent accumulation of mitochondrial DNA (mtDNA) mutations plays in the senescence processes, mitochondria from fibroblasts of 21 normal human individuals between 20 weeks (fetal) and 103 years of age were introduced
Attardi, Giuseppe   +5 more
core   +1 more source

The Influence of Noise Level on the Stress Response of Hospitalized Cats

open access: yesVeterinary Sciences
The study aimed to investigate the impact of noise levels in the hospital environment on the stress experienced by hospitalized cats undergoing elective ovariohysterectomy surgery.
Marisa Girão   +3 more
doaj   +1 more source

Changes in Short-Term and Ultra-Short Term Heart Rate, Respiratory Rate, and Time-Domain Heart Rate Variability Parameters during Sympathetic Nervous System Activity Stimulation in Elite Modern Pentathlonists—A Pilot Study

open access: yesDiagnostics, 2020
Monitoring of markers reflecting cardiac autonomic activity before and during stressful situations may be useful for identifying the physiological state of an athlete and may have medical or performance implications.
Jakub S. Gąsior   +6 more
doaj   +1 more source

Noninvasive prediction of Blood Lactate through a machine learning-based approach. [PDF]

open access: yes, 2019
We hypothesized that blood lactate concentration([Lac]blood) is a function of cardiopulmonary variables, exercise intensity and some anthropometric elements during aerobic exercise.
Casaburi, Richard   +6 more
core   +3 more sources

Modeling ambient temperature and relative humidity sensitivity of respiratory droplets and their role in Covid-19 outbreaks [PDF]

open access: yes, 2020
One of the many unresolved questions that revolves around the Covid-19 pandemic is whether local outbreaks can depend on ambient conditions like temperature and relative humidity.
Basu, Saptarshi   +4 more
core   +2 more sources

Estimation of Heart Rate and Respiratory Rate from PPG Signal Using Complementary Ensemble Empirical Mode Decomposition with both Independent Component Analysis and Non-Negative Matrix Factorization

open access: yesSensors, 2020
This paper proposes a framework combining the complementary ensemble empirical mode decomposition with both the independent component analysis and the non-negative matrix factorization for estimating both the heart rate and the respiratory rate from the ...
Ruisheng Lei   +3 more
doaj   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Clinical and fiberoptic endoscopic assessment of swallowing in patients with chronic obstructive pulmonary disease

open access: yesInternational Archives of Otorhinolaryngology, 2013
Summary Introduction: Chronic obstructive pulmonary disease is characterized by progressive and partially reversible obstruction of pulmonary airflow.
Marina Rodrigues Bueno Macri   +6 more
doaj   +1 more source

Investigation of the Respiration Rate During Storage of Fruit Vegetables Under the Influence of Abiotic Factors [PDF]

open access: yes, 2017
The aim of the work was to establish the influence of most important abiotic planting factors (temperature, precipitation quantity) on the respiratory rate of fruit vegetables at storage and also a possibility of correction of respiratory metabolism by ...
Bandurenko, H. (Halyna)   +9 more
core  

Risk factors for Haemophilus influenzae and pneumococcal respiratory tract colonization in CVID [PDF]

open access: yes, 2018
To the Editor: Disease-specific studies focused on infection risk in common variable immune deficiencies (CVIDs) are needed to define strategies for controlling respiratory infections predominantly due to bacteria such as Streptococcus pneumoniae and ...
Camilli, Romina   +10 more
core   +1 more source

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