Subjects -> BIOLOGY (Total: 3496 journals)
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PHYSIOLOGY (73 journals)

Showing 1 - 73 of 73 Journals sorted alphabetically
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 4)
Acta Physiologica     Hybrid Journal   (Followers: 7)
Acta Physiologica Hungarica     Full-text available via subscription   (Followers: 4)
Advances in Insect Physiology     Full-text available via subscription   (Followers: 2)
Advances in Physiology Education     Open Access   (Followers: 6)
AJP Cell Physiology     Hybrid Journal   (Followers: 19)
AJP Gastrointestinal and Liver Physiology     Hybrid Journal   (Followers: 8)
AJP Heart and Circulatory Physiology     Hybrid Journal   (Followers: 12)
AJP Lung Cellular and Molecular Physiology     Hybrid Journal   (Followers: 3)
AJP Regulatory Integrative and Comparative Physiology     Hybrid Journal   (Followers: 15)
AJP Renal Physiology     Hybrid Journal   (Followers: 8)
American Journal of Plant Physiology     Open Access   (Followers: 13)
Anatomy & Physiology : Current Research     Open Access   (Followers: 9)
Angiogenesis     Hybrid Journal   (Followers: 3)
Annual Review of Physiology     Full-text available via subscription   (Followers: 14)
Archives of Anatomy and Physiology     Open Access   (Followers: 2)
Archives of Insect Biochemistry and Physiology     Hybrid Journal   (Followers: 1)
Biochemistry & Physiology : Open Access     Open Access   (Followers: 2)
BMC Physiology     Open Access   (Followers: 4)
Brazilian Journal of Plant Physiology     Open Access   (Followers: 3)
Canadian Journal of Physiology and Pharmacology     Hybrid Journal   (Followers: 2)
Cellular Physiology and Biochemistry     Open Access   (Followers: 4)
Clinical and Experimental Pharmacology and Physiology     Hybrid Journal   (Followers: 8)
Clinical Physiology and Functional Imaging     Hybrid Journal  
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology     Hybrid Journal   (Followers: 8)
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology     Hybrid Journal   (Followers: 4)
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology     Hybrid Journal   (Followers: 6)
Comparative Biochemistry and Physiology Part D: Genomics and Proteomics     Hybrid Journal   (Followers: 2)
Comparative Exercise Physiology     Hybrid Journal   (Followers: 24)
Conservation Physiology     Open Access   (Followers: 3)
Current Opinion in Physiology     Hybrid Journal  
European Journal of Applied Physiology     Hybrid Journal   (Followers: 48)
Experimental Physiology     Hybrid Journal   (Followers: 11)
Fish Physiology     Full-text available via subscription   (Followers: 5)
Fish Physiology and Biochemistry     Hybrid Journal   (Followers: 3)
Frontiers in Physiology     Open Access   (Followers: 5)
Human Physiology     Hybrid Journal   (Followers: 5)
Journal of Animal Physiology and Animal Nutrition     Hybrid Journal   (Followers: 10)
Journal of Applied Physiology     Hybrid Journal   (Followers: 68)
Journal of Cellular Physiology     Hybrid Journal   (Followers: 8)
Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology     Hybrid Journal   (Followers: 12)
Journal of Comparative Physiology B : Biochemical, Systemic, and Environmental Physiology     Hybrid Journal   (Followers: 5)
Journal of Evolutionary Biochemistry and Physiology     Hybrid Journal  
Journal of General Physiology     Full-text available via subscription   (Followers: 4)
Journal of Insect Physiology     Hybrid Journal   (Followers: 3)
Journal of Morphology     Hybrid Journal   (Followers: 7)
Journal of Neurophysiology     Hybrid Journal   (Followers: 28)
Journal of Physiology and Biochemistry     Hybrid Journal   (Followers: 3)
Journal of Physiology-Paris     Hybrid Journal   (Followers: 2)
Journal of Plant Physiology     Hybrid Journal   (Followers: 9)
Pathophysiology     Full-text available via subscription   (Followers: 2)
Pesticide Biochemistry and Physiology     Hybrid Journal   (Followers: 4)
Pflugers Archiv European Journal of Physiology     Hybrid Journal   (Followers: 3)
Physiologia Plantarum     Hybrid Journal  
Physiological and Molecular Plant Pathology     Hybrid Journal   (Followers: 3)
Physiological Entomology     Hybrid Journal   (Followers: 3)
Physiological Genomics     Hybrid Journal  
Physiological Measurement     Full-text available via subscription   (Followers: 5)
Physiological Reports     Open Access   (Followers: 3)
Physiological Reviews     Hybrid Journal   (Followers: 4)
Physiology     Hybrid Journal   (Followers: 3)
Physiology and Molecular Biology of Plants     Hybrid Journal  
Plant and Cell Physiology     Hybrid Journal   (Followers: 11)
Plant Physiology     Full-text available via subscription   (Followers: 24)
Plant Physiology and Biochemistry     Hybrid Journal   (Followers: 10)
Psychophysiology     Hybrid Journal   (Followers: 7)
Respiratory Physiology & Neurobiology     Hybrid Journal   (Followers: 4)
Reviews of Physiology, Biochemistry and Pharmacology     Hybrid Journal   (Followers: 4)
Russian Journal of Plant Physiology     Hybrid Journal   (Followers: 4)
Systems Biomedicine     Hybrid Journal  
The Journal of Physiological Sciences     Hybrid Journal   (Followers: 1)
The Journal of Physiology     Hybrid Journal   (Followers: 10)
Tree Physiology     Hybrid Journal   (Followers: 7)
Similar Journals
Journal Cover
Physiological Measurement
Journal Prestige (SJR): 0.731
Citation Impact (citeScore): 2
Number of Followers: 5  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 0967-3334
Published by IOP Homepage  [73 journals]
  • HRT assessment reviewed: a systematic review of heart rate turbulence
           methodology
    • Authors: Valeria Blesius; Christopher Schölzel, Gernot Ernst Andreas Dominik
      First page: 08TR01
      Abstract: Heart rate turbulence (HRT) is a biphasic reaction to a ventricular premature contraction (VPC) mainly mediated by the baroreflex. It can be used for risk stratification in different disease patterns. Despite existing standards there is a lot of variation in terms of measuring and calculating HRT, which complicates research and application. Objective : This systematic review outlines and evaluates the methodological spectrum of HRT research, especially filtering criteria, parameter calculation and thresholds. Approach : The analysis includes all research papers written in English that have been published before 12.10.2018, are listed on PubMed and involve calculation of HRT parameter values. Main results : HRT assessment is still being performed in various ways and important specifications of the methodology are not given in many articles. Nevertheless, some suggestions regarding HRT methodology can be made: a normalised turbulence slope should be used to uncou...
      Citation: Physiological Measurement
      PubDate: 2020-09-10T23:00:00Z
      DOI: 10.1088/1361-6579/ab98b3
      Issue No: Vol. 41, No. 8 (2020)
       
  • Conditioning participants to a relative pressure: implications for
           practical blood flow restriction
    • Authors: Zachary W Bell; Robert W Spitz, Vickie Wong, Yujiro Yamada, Raksha N Chatakondi, Takashi Abe, Scott J Dankel Jeremy P Loenneke
      First page: 08NT01
      Abstract: Objective : To develop a valid method of applying blood flow restriction when the pressure cannot be known. This method involves conditioning the individual to what the goal pressure should be, such that the participant is able to recognize the sensation associated with that specific pressure. Approach : Participants were conditioned to 40% of their arterial occlusion pressure (AOP) by oscillating between pressures that were too high (60%) and pressures that were too low (20%). Incorrect pressures were used to highlight pressure sensations surrounding the correct pressure that participants would be asked to later identify. Participants made attempts to estimate pressures at 5 min and 24 h following the conditioning stimulus. Main results : A total of 40 participants completed this study. Estimated pressures at 5 min post conditioning were similar to the target pressure (−2 (−7, 3) mmHg; probability of H0: 0.675). However, pressures at 24 h post conditioning we...
      Citation: Physiological Measurement
      PubDate: 2020-09-03T23:00:00Z
      DOI: 10.1088/1361-6579/aba810
      Issue No: Vol. 41, No. 8 (2020)
       
  • Investigating the origin of photoplethysmography using a multiwavelength
           Monte Carlo model
    • Authors: Subhasri Chatterjee; Karthik Budidha Panayiotis A Kyriacou
      First page: 084001
      Abstract: Photoplethysmography (PPG) is a photometric technique used for the measurement of volumetric changes in the blood. The recent interest in new applications of PPG has invigorated more fundamental research regarding the origin of the PPG waveform, which since its discovery in 1937, remains inconclusive. A handful of studies in the recent past have explored various hypotheses for the origin of PPG. These studies relate PPG to mechanical movement, red blood cell orientation or blood volume variations. Objective : Recognising the significance and need to corroborate a theory behind PPG formation, the present work rigorously investigates the origin of PPG based on a realistic model of light–tissue interactions. Approach : A three-dimensional comprehensive Monte Carlo model of finger-PPG was developed and explored to quantify the optical entities pertinent to PPG (e.g. absorbance, reflectance, and penetration depth) as the functions of multiple wavelengths and source-detect...
      Citation: Physiological Measurement
      PubDate: 2020-09-03T23:00:00Z
      DOI: 10.1088/1361-6579/aba008
      Issue No: Vol. 41, No. 8 (2020)
       
  • Assessing the validity and reliability and determining cut-points of the
           Actiwatch 2 in measuring physical activity
    • Authors: Chadley Kemp; Paula R Pienaar, Rob H P Henst, Laura C Roden, Tracy L Kolbe-Alexander Dale E Rae
      First page: 085001
      Abstract: Objective : The Actiwatch 2 (AW2) is a wrist-worn accelerometer typically used to measure sleep. Although it can measure physical activity, there is limited evidence supporting its validity. We assessed the validity and reliability of the AW2 to measure sedentary behavior and physical activity (light, moderate, vigorous intensities), and reported their respective count cut-points. Approach : Twenty-eight males and 22 females completed a task battery comprising three sedentary tasks and six randomized physical activity tasks at varying intensities, whilst wearing the AW2, a reference accelerometry device (Actigraph GT3X) and a cardiopulmonary gas analyzer on two separate occasions. Validity was assessed using correlations (AW2 counts versus GT3X counts and metabolic equivalent (MET) values), reliability using Bland–Altman analyses, and cut-points were determined using receiver operating characteristic (ROC) area under the curve (AUC) analyses. Main results : AW...
      Citation: Physiological Measurement
      PubDate: 2020-09-03T23:00:00Z
      DOI: 10.1088/1361-6579/aba80f
      Issue No: Vol. 41, No. 8 (2020)
       
  • Intrinsic frequency method for instantaneous assessment of left
           ventricular-arterial coupling after transcatheter aortic valve
           replacement
    • Authors: Emad Mogadam; David M Shavelle, Gregory M Giesler, Christina Economides, St Pierre Lidia, Sue Duquette, Ray V Matthews Niema M Pahlevan
      First page: 085002
      Abstract: Background : Aortic stenosis (AS) is the most common cause for valve replacement in the United States. The pathophysiology of AS involves obstruction to the left ventricular (LV) outflow and reduced arterial compliance. The intrinsic frequency (IF) method is a system-based approach for hemodynamic monitoring of the LV-arterial system and involves determination of ω 1 and ω 2 , which represent the dynamics of LV systolic and vascular function, respectively. Total frequency variation of the systemic circulation is the difference between these IFs (Δω = ω 1 – ω 2 ). Objective : Our goal in this study was to investigate whether Δω, obtained from the ascending aortic pressure waveform, can be indicative of LV-arterial coupling after transcatheter aortic valve replacement (TAVR). Approach : Thirty patients undergoing elective TAVR for severe, symptomatic AS were included. We applied the IF method to assess the immediate effects o...
      Citation: Physiological Measurement
      PubDate: 2020-09-03T23:00:00Z
      DOI: 10.1088/1361-6579/aba67f
      Issue No: Vol. 41, No. 8 (2020)
       
  • COHmax: an algorithm to maximise coherence in estimates of dynamic
           cerebral autoregulation
    • Authors: Ronney B Panerai; Kannakorn Intharakham, Jatinder S Minhas, Osian Llwyd, Angela S M Salinet, Emmanuel Katsogridakis, Paola Maggio Thompson G Robinson
      First page: 085003
      Abstract: Objective : The reliability of dynamic cerebral autoregulation (dCA) parameters, obtained with transfer function analysis (TFA) of spontaneous fluctuations in arterial blood pressure (BP), require statistically significant values of the coherence function. A new algorithm (COH max ) is proposed to increase values of coherence by means of the automated, selective removal of sub-segments of data. Approach : Healthy subjects were studied at baseline (normocapnia) and during 5% breathing of CO 2 (hypercapnia). BP (Finapres), cerebral blood flow velocity (CBFV, transcranial Doppler), end-tidal CO 2 (EtCO 2 , capnography) and heart rate (ECG) were recorded continuously during 5 min in each condition. TFA was performed with sub-segments of data of duration (SEG D ) 100 s, 50 s or 25 s and the autoregulation index (ARI) was obtained from the CBFV response to a step change in BP. The area-under-the curve (AUC) was obtained from ...
      Citation: Physiological Measurement
      PubDate: 2020-09-03T23:00:00Z
      DOI: 10.1088/1361-6579/aba67e
      Issue No: Vol. 41, No. 8 (2020)
       
  • Comparison between bioelectrical impedance spectroscopy measurements and
           water volume displacement of ankle oedema variations during the course
           of a day
    • Authors: Amalric Montalibet; Didier Rastel, Cyril Chaigneau, Etienne Grenier Eric McAdams
      First page: 085004
      Abstract: Objective : The purpose of this study was to find relationships between variations in bioelectrical impedance spectroscopy (BIS) measurements and those obtained by water displacement (WD) and calf (C) and ankle (A) perimetry on legs of patients with venous insufficiency and lower limb oedema, some with positive pitting test (PPT), others with negative pitting test (NPT). Approach : Twenty-nine (29) female subjects were clinically examined prior to inclusion in the trial. Measurements were taken once in the morning and then 6 h later, using perimetry, WD, and then BIS; subjects were standing. Leg volume was assessed using two WD volumeters, one ‘Tall’ (TWD) and one ‘Short’ (SWD). BIS was performed using a SFB7 impedance meter device (Impedimed ® ). Main results : Forty-three (43) legs with oedema were included. The results showed that 61% of the TWD variations variance was explained by SWD variations; less than 30% of the TWD variations variance was ex...
      Citation: Physiological Measurement
      PubDate: 2020-09-10T23:00:00Z
      DOI: 10.1088/1361-6579/abaa57
      Issue No: Vol. 41, No. 8 (2020)
       
  • Evaluation of electrical properties of ex vivo human hepatic tissue with
           metastatic colorectal cancer
    • Authors: Varun Lochab; Travis H Jones, Emily Alkandry, Joseph D West, Mohamed H Abdel-Rahman, Vish V Subramaniam Shaurya Prakash
      First page: 085005
      Abstract: Objective: To probe the distribution of electrical properties in tumor-bearing human hepatic tissues with metastatic colorectal cancer. Approach: Electrochemical impedance spectroscopy (EIS) and a non-contact electromagnetic probe were used for distinguishing spatial heterogeneities in fresh, unfixed human hepatic tissues ex vivo from patients with metastatic colorectal cancer (CRC). Main results: Point-wise EIS measurements reported over a frequency range of 100 Hz–1 MHz showed that the interface tissue between visible tumor and normal tissue exhibits an electrically different domain ( p < 0.05) from both normal tissue (over 100 Hz–100 kHz) and tumor tissue (over 100 Hz–1 MHz). Observations of the microstructure on tumor-bearing hepatic tissue from hematoxylin and eosin stained images and the equivalent circuit modelling were used to validate the impedance measurements and characterize previously unidentified interfacial domain between norm...
      Citation: Physiological Measurement
      PubDate: 2020-09-09T23:00:00Z
      DOI: 10.1088/1361-6579/abaa55
      Issue No: Vol. 41, No. 8 (2020)
       
  • Amplitude spectrum trend-based feature for excitation location
           classification from snore sounds
    • Authors: Jingpeng Sun; Xiyuan Hu, Chen Chen, Silong Peng Yan Ma
      First page: 085006
      Abstract: Objective : Successful surgical treatment of obstructive sleep apnea (OSA) depends on the precise location of the vibrating tissue. Snoring is the main symptom of OSA and can be utilized to detect the active location of tissues. However, existing approaches are limited, owing to their inability to capture the characteristics of snoring produced from the upper airway. This paper proposes a new approach to better distinguish different snoring sounds that are generated from four different excitation locations. Approach : First, we propose a robust null space pursuit algorithm for extracting the trend from the amplitude spectrum of snoring. Second, a new feature from this extracted amplitude spectrum trend, which outperforms the Mel-frequency cepstral coefficient (MFCC) feature, is designed. Subsequently, the newly proposed feature, namely the trend-based MFCC (TCC), is reduced in dimensionality by using principal component analysis. Finally, a support vector machine is...
      Citation: Physiological Measurement
      PubDate: 2020-09-09T23:00:00Z
      DOI: 10.1088/1361-6579/abaa34
      Issue No: Vol. 41, No. 8 (2020)
       
  • Monitoring bronchoalveolar lavage with electrical impedance tomography:
           first experience in a patient with COVID-19
    • Authors: Yingyun Fu; Rongrong Zou, Shouhong Wang, Junmin Wen, Lei Rong, Ming Tang, Baojun Yu, Fulan Cen, Zhanqi Zhao, Inéz Frerichs, Andy Adler, Yingxia Liu Lei Liu
      First page: 085008
      Abstract: Objective : Patients with the novel coronavirus disease (COVID-19) often have airway secretions that severely compromise ventilation. This study investigates electrical impedance tomography (EIT) monitoring of a therapeutic bronchoalveolar lavage (BAL) in a patient with COVID-19. Approach : A patient with COVID-19 developed acute respiratory distress syndrome requiring mechanical ventilation. He received regional BAL to remove mucus in the small airways (20 ml × 5). Regional ventilation changes before BAL, 30 min after and in the following days, were monitored with EIT. Main results : Regional ventilation worsened shortly after BAL and improved in the following days. The improvement of the oxygenation did not exactly match the ventilation improvement, which indicated a possible ventilation/perfusion mismatch. Significance : Therapeutic BAL might improve regional ventilation for COVID-19 and EIT could be a useful tool at the bedside to monitor the ventila...
      Citation: Physiological Measurement
      PubDate: 2020-09-09T23:00:00Z
      DOI: 10.1088/1361-6579/abab1b
      Issue No: Vol. 41, No. 8 (2020)
       
 
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