Results 91 to 100 of about 824,033 (337)

Scale Invariance in the Nonstationarity of Physiological Signals [PDF]

, 2000
We introduce a segmentation algorithm to probe temporal organization of heterogeneities in human heartbeat interval time series. We find that the lengths of segments with different local values of heart rates follow a power-law distribution.
A. Arneodo, A. L. Goldberger, A. Witt, C. Guilleminault, C.-K. Peng, G. Mayer-Kress, H. A. Makse, H. Eugene Stanley, H. Kantz, J. B. Bassingthwaighte, J. M. Hausdorff, L. S. Liebovitch, Luís A. Nunes Amaral, M. Kobayashi, M. M. Wolf, M. Meyer, P. Ch. Ivanov, P. Ch. Ivanov, Pedro Bernaola-Galván, Plamen Ch. Ivanov, R. Hegger, R. I. Kitney, R. L. Stratonovich, T. Schreiber, W. H. Press   +24 more
core   +2 more sources

Combining antibody conjugates with cytotoxic and immune‐stimulating payloads maximizes anti‐cancer activity

Molecular Oncology, EarlyView.
Methods to improve antibody–drug conjugate (ADC) treatment durability in cancer therapy are needed. We utilized ADCs and immune‐stimulating antibody conjugates (ISACs), which are made from two non‐competitive antibodies, to enhance the entry of toxic payloads into cancer cells and deliver immunostimulatory agents into immune cells.
Tiexin Wang, Dong Jun Koo, Peter M. Tessier, Greg M. Thurber   +3 more
wiley   +1 more source

Doppler Radar for Heartbeat Rate and Heart Rate Variability Extraction [PDF]

, 2011
4 pagesInternational audienceThis paper presents a Doppler radar system used to detect the heartbeat signal from a d√istance of one meter. The proposed system is based on using a vector network analyzer and two antennas.
El Zein, Ghaïs, Obeid, Dany, Sadek, Sawsan, Zaharia, Gheorghe   +3 more
core   +3 more sources

Dietary nitrate and nitrite protect against doxorubicin‐induced cardiac fibrosis and oxidative protein damage in tumor‐bearing mice

FEBS Open Bio, EarlyView.
Chemotherapies such as doxorubicin can have toxic effects on healthy cardiovascular/heart tissue. Following up on a doxorubicin toxicity study in mice without tumors where nitrate water was cardioprotective (lessened toxicity), this study with tumor‐bearing mice undergoing doxorubicin treatment showed no negative effect of nitrate and nitrite on drug ...
Rama D. Yammani, Xiaofei Chen, Nildris Cruz‐Diaz, Xuewei Zhu, Swati Basu, Daniel B. Kim‐Shapiro, David R. Soto‐Pantoja, Leslie B. Poole   +7 more
wiley   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

Pulse rate variability: a new biomarker, not a surrogate for heart rate variability

Journal of Physiological Anthropology, 2020
With the popularization of pulse wave signals by the spread of wearable watch devices incorporating photoplethysmography (PPG) sensors, many studies are reporting the accuracy of pulse rate variability (PRV) as a surrogate of heart rate variability (HRV).
Emi Yuda, Muneichi Shibata, Yuki Ogata, Norihiro Ueda, Tomoyuki Yambe, Makoto Yoshizawa, Junichiro Hayano   +6 more
doaj   +1 more source

Humming (Simple Bhramari Pranayama) as a Stress Buster: A Holter-Based Study to Analyze Heart Rate Variability (HRV) Parameters During Bhramari, Physical Activity, Emotional Stress, and Sleep [PDF]

, 2023
Gunjan Y Trivedi, Kamal Sharma, Banshi Saboo, Soundappan Kathirvel, Ashwati Konat, Vatsal Zapadia, Poojan J Prajapati, Urva Benani, Kahan Patel, Suchi Shah   +9 more
openalex   +1 more source

Impact of Stress‐Induced Hyperglycemia on In‐Hospital Medical Complications in Patients With Acute Stroke: From a Large‐Scale Nationwide Longitudinal Registry

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Aims This study aimed to explore the relationship between stress‐induced hyperglycemia (SIH) and in‐hospital medical complications in patients with acute stroke. Methods We enrolled 865,765 patients with acute stroke from the Chinese Stroke Center Alliance cohort.
Xintong Song, Yi Ju, Hongqiu Gu, Zhikai Zhu, Zixiao Li, Qian Zhang, Xingquan Zhao   +6 more
wiley   +1 more source

Behaviour, heart rate, and heart rate variability in pigs exposed to novelty

Revista Brasileira de Zootecnia, 2016
In the present study, we investigated behavioural responses and determined parameters of heart rate variability (HRV) to elucidate a relative activation of autonomic nervous system (ANS) during baseline (10 min) and in response to potentially stressful ...
Manja Zupan, Tore Framstad, Adroaldo José Zanella   +2 more
doaj   +1 more source

Recurrence Plot Based Measures of Complexity and its Application to Heart Rate Variability Data

, 2002
The knowledge of transitions between regular, laminar or chaotic behavior is essential to understand the underlying mechanisms behind complex systems. While several linear approaches are often insufficient to describe such processes, there are several ...
A. Hempelmann, A. L. Goldberger, A. Voss, A. Witt, A. Wolf, Alexander Schirdewan, B. Blasius, C. L. Webber, Jr., E. M. Oblow, H. D. I. Abarbanel, H. V. Huikuri, J. B. Gao, J. B. Gao, J. Kurths, J. Kurths, J. M. Nese, J. O. Diaz, J. P. Zbilut, J.-P. Eckmann, Jürgen Kurths, K. B. Marvel, L. Glass, L. Glass, L. L. Trulla, M. C. Casdagli, N. Wessel, N. Wessel, Niels Wessel, Norbert Marwan, P. E. Rapp, R. Engbert, R. Wackerbauer, S. Guzzetti, U. Schwarz, Udo Meyerfeldt   +34 more
core   +1 more source