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Journal articles on the topic 'Respiratory cycle'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Motamedi-Fakhr, Shayan, Mohamed Moshrefi-Torbati, Martyn Hill, et al. "Respiratory cycle related EEG changes: Modified respiratory cycle segmentation." Biomedical Signal Processing and Control 8, no. 6 (2013): 838–44. http://dx.doi.org/10.1016/j.bspc.2013.08.001.

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2

Chung, Seung-Kyu, Young Rak Son, Seok Jae Shin, and Sung-Kyun Kim. "Nasal Airflow during Respiratory Cycle." American Journal of Rhinology 20, no. 4 (2006): 379–84. http://dx.doi.org/10.2500/ajr.2006.20.2890.

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3

SONE, RYOKO, YOSHIYUKI FUKUOKA, FUMIO YAMAZAKI, SACHIKO HOMMA, and HARUO IKEGAMI. "RELATIONSHIP BETWEEN RESPIRATORY PERIOD AND RESPIRATORY CARDIAC CYCLE VARIABILITY." Japanese Journal of Physical Fitness and Sports Medicine 41, no. 3 (1992): 330–38. http://dx.doi.org/10.7600/jspfsm1949.41.330.

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4

Boggs, D., F. Jenkins, and K. Dial. "The effects of the wingbeat cycle on respiration in black-billed magpies (Pica pica)." Journal of Experimental Biology 200, no. 9 (1997): 1403–12. http://dx.doi.org/10.1242/jeb.200.9.1403.

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Interclavicular and posterior thoracic airsac pressures, tracheal airflows and pectoralis muscle activity were recorded simultaneously to determine the effect of the wingbeat cycle upon the function of the respiratory system. The effects of the wingbeat cycle on the relative positions of thoraco-abdominal skeletal structures were also assessed using high-speed X-ray cinematography of magpies Pica pica flying in a windtunnel. We found that the furcula bends laterally on the downstroke and recoils medially on the upstroke, as previously described for starlings, and that the coraco-sternal joint

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5

DE GRAAF, P. J. F., and B. L. Roberts. "Effects of vagal sensory input on the breathing rhythm of the carp." Journal of Experimental Biology 155, no. 1 (1991): 77–91. http://dx.doi.org/10.1242/jeb.155.1.77.

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Electrical stimulation of an epibranchial vagal ganglion, which innervates the gill region, had a marked influence on the respiratory rhythm of the carp Cyprinus carpio. Vagal input could initiate ventilation in fish displaying intermittent respiration. In fish breathing steadily, vagal stimuli could reset the respiratory rhythm by modifying the existing breathing cycle. An increase of stimulus intensity evoked a cough-like movement, thus delaying the onset of following cycles. Rhythmic stimulation, at intervals not more than 10° longer or shorter than the breathing cycle period, could entrain

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6

Ludwig-Begall, Louisa F., Constance Wielick, Olivier Jolois, et al. "“Don, doff, discard” to “don, doff, decontaminate”—FFR and mask integrity and inactivation of a SARS-CoV-2 surrogate and a norovirus following multiple vaporised hydrogen peroxide-, ultraviolet germicidal irradiation-, and dry heat decontaminations." PLOS ONE 16, no. 5 (2021): e0251872. http://dx.doi.org/10.1371/journal.pone.0251872.

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Background As the SARS-CoV-2 pandemic accelerates, the supply of personal protective equipment remains under strain. To combat shortages, re-use of surgical masks and filtering facepiece respirators has been recommended. Prior decontamination is paramount to the re-use of these typically single-use only items and, without compromising their integrity, must guarantee inactivation of SARS-CoV-2 and other contaminating pathogens. Aim We provide information on the effect of time-dependent passive decontamination (infectivity loss over time during room temperature storage in a breathable bag) and e

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7

TAKATSUKI, SEIJI, HIDEO MITAMURA, SHUNNICHIRO MIYOSHI, and SATOSHI OGAWA. "Respiratory Cycle-Dependent Left Atrial Tachycardia." Journal of Cardiovascular Electrophysiology 12, no. 10 (2001): 1202. http://dx.doi.org/10.1046/j.1540-8167.2001.01202.x.

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8

MECHCATIE, ELIZABETH. "Respiratory symptoms vary throughout menstrual cycle." Hospitalist News 6, no. 1 (2013): 20. http://dx.doi.org/10.1016/s1875-9122(13)70015-4.

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9

Gow, A. J., J. P. Eu, T. J. McMahon, C. A. Piantadosi, and J. S. Stamler. "Nitric oxide in the respiratory cycle." Japanese Journal of Pharmacology 75 (1997): 18. http://dx.doi.org/10.1016/s0021-5198(19)41495-9.

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MECHCATIE, ELIZABETH. "Respiratory symptoms vary throughout menstrual cycle." Ob.Gyn. News 48, no. 1 (2013): 7. https://doi.org/10.1016/s0029-7437(13)70007-7.

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11

Eldridge, F. L., D. Paydarfar, P. G. Wagner, and R. T. Dowell. "Phase resetting of respiratory rhythm: effect of changing respiratory "drive"." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 257, no. 2 (1989): R271—R277. http://dx.doi.org/10.1152/ajpregu.1989.257.2.r271.

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We studied the effect of changing drive on resetting of respiratory rhythm in anesthetized cats and in a model (Van der Pol) of a limit-cycle oscillator. In cats, rhythm was perturbed by brief mesencephalic stimuli. Stimulus time in the cycle (old phases) and times of onset of rescheduled breaths (cophases) were measured. Previous study [Paydarfar and Eldridge, Am. J. Physiol. 252 (Regulatory Integrative Comp. Physiol. 21): R55-R62, 1987] showed distinct types of phase resetting that depended on strength of stimuli. In this study, stimulus strength was kept constant, but respiratory drive was

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12

Boggs, D., J. Seveyka, D. Kilgore, and K. Dial. "Coordination of respiratory cycles with wingbeat cycles in the black-billed magpie (Pica pica)." Journal of Experimental Biology 200, no. 9 (1997): 1413–20. http://dx.doi.org/10.1242/jeb.200.9.1413.

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Magpies fly with a variable pattern of wingstroke, including high-amplitude rapid flaps and low-amplitude slower flaps with interspersed brief glides. This allowed us to test the hypothesis that if phasic coordination between respiratory and wingbeat cycles is important mechanically and energetically, then, as a bird changes its wingbeat cycle, its respiratory cycle should change with it. We also tested the strength of the drive to coordinate respiratory to locomotor cycles by stimulating breathing with 5 % CO2 during flight. We found that magpies (N=5) do shorten their breath cycle time when

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13

Hanyanunt, Patomroek, Piraporn Juntanawiwat, Tassananwan Chatreewonanakul, et al. "EFFECTS OF ULTRAVIOLET C (UVC) LIGHT AND DRY HEAT ON FILTRATION PERFORMANCE OF N95 RESPIRATOR MASK." Journal of Southeast Asian Medical Research 4, no. 2 (2020): 48–52. http://dx.doi.org/10.55374/jseamed.v4i2.75.

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Background: The emergence of the Coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) creates one of the most pressing issues with a severe shortage of personal protective equipment (PPE) particularly N95 respirators in healthcare settings worldwide. Recently, possible strategies to decontaminate disposable N95 respirators, including using ultraviolet C (UVC) irradiation and heat treatment, were reported to consider safely reusing the respirators. However, both methods create potential risks to reduce the ability of the respirator f

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14

Cross, S. J., M. R. Cowie, and J. M. Rawles. "Mutual interactions of respiratory sinus arrhythmia and the carotid baroreceptor-heart rate reflex." Clinical Science 82, no. 2 (1992): 139–45. http://dx.doi.org/10.1042/cs0820139.

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1. In six healthy subjects the amplitude and phase of respiratory sinus arrhythmia were determined at five different respiratory cycle lengths ranging from 3 to 9.5 s. 2. At each respiratory cycle length the carotid baroreceptor-heart rate reflex response was determined by cyclical neck suction at −40 mmHg at five different cycle lengths covering the same range of 3–9.5 s. 3. The application of cyclical neck suction increased the amplitude of respiratory sinus arrhythmia in all but the longest respiratory cycle lengths. 4. With increasing respiratory cycle length the amplitude of sinus arrhyth

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15

McFarland, D. H., and J. P. Lund. "An investigation of the coupling between respiration, mastication, and swallowing in the awake rabbit." Journal of Neurophysiology 69, no. 1 (1993): 95–108. http://dx.doi.org/10.1152/jn.1993.69.1.95.

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1. The interrelationships between respiration, mastication, and swallowing were studied in awake rabbits previously prepared for the chronic recording of jaw movements and the electromyographic activity of jaw and throat muscles. These signals were recorded before, during, and after the mastication of rabbit chow, together with respiratory movements. 2. The onset of activity in the thyrohyoid muscle was used as a marker for swallowing. Measurements were made of cycle duration, and the phase relationship between the masticatory and respiratory rhythms was calculated. Deviations in masticatory a

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16

Setiyaningrum, Synthia Dwi, Akhmad Zainur Ridla, Ana Nistiandani, and Sugito Tri Gunarto. "Implementation of Passive Leg Movement on Blood Pressure in Post-Op Laparatomy Exploration Patient." Jurnal Kegawatdaruratan Medis Indonesia 3, no. 1 (2024): 58–67. http://dx.doi.org/10.58545/jkmi.v3i1.169.

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Background: Management of secretions is one of the main problems faced in the medical condition of respiratory disorders. The use of complementary therapy techniques to treat airway clearance such as the active cycle of breathing technique is still low when compared with other interventions in treating respiratory problems. Aims: The research aims to determine the effectiveness of providing active cycle of breathing technique therapy to overcome nursing problems ineffectiveness airway clearance in nursing care. Method: This type of research is a case study using nursing care methods. The resea

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Kushariyadi, Sujarwanto, and Alisa Qudrunanda Rosyida. "Active Cycle of Breathing Technique: The Right Choice for Ineffective Airway Clearance Nursing Problem." Jurnal Kegawatdaruratan Medis Indonesia 3, no. 1 (2024): 90–103. http://dx.doi.org/10.58545/jkmi.v3i1.229.

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Background: Management of secretions is one of the main problems faced in the medical condition of respiratory disorders. the use of complementary therapy techniques to treat airway clearance such as the active cycle of breathing technique is still low when compared with other interventions in treating respiratory problems. Aims: The research aims to determine the effectiveness of providing active cycle of breathing technique therapy to overcome nursing problems ineffectiveness airway clearance in nursing care. Method: This type of research is a case study using nursing care methods. The resea

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18

Marini, John J. "Dissipation of energy during the respiratory cycle." Current Opinion in Critical Care 24, no. 1 (2018): 16–22. http://dx.doi.org/10.1097/mcc.0000000000000470.

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19

Murphy, Raymond, Andrey Vyshedskiy, and Ruqayyah Alhashem. "Crackle Polarity is Influenced by Respiratory Cycle." Chest 126, no. 4 (2004): 798S. http://dx.doi.org/10.1378/chest.126.4_meetingabstracts.798s-a.

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20

Shirley, D., P. W. Hodges, A. E. M. Eriksson, and S. C. Gandevia. "Spinal stiffness changes throughout the respiratory cycle." Journal of Applied Physiology 95, no. 4 (2003): 1467–75. http://dx.doi.org/10.1152/japplphysiol.00939.2002.

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Posteroanterior stiffness of the lumbar spine is influenced by factors, including trunk muscle activity and intra-abdominal pressure (IAP). Because these factors vary with breathing, this study investigated whether stiffness is modulated in a cyclical manner with respiration. A further aim was to investigate the relationship between stiffness and IAP or abdominal and paraspinal muscle activity. Stiffness was measured from force-displacement responses of a posteroanterior force applied over the spinous process of L2and L4. Recordings were made of IAP and electromyographic activity from L4/L2ere

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21

McMahon, Timothy J., Richard E. Moon, Ben P. Luschinger, et al. "Nitric oxide in the human respiratory cycle." Nature Medicine 8, no. 7 (2002): 711–17. http://dx.doi.org/10.1038/nm718.

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22

Schaper, Michelle, Katherine Detwiler, and Yves Alarie. "Alteration of respiratory cycle timing by propranolol." Toxicology and Applied Pharmacology 97, no. 3 (1989): 538–47. http://dx.doi.org/10.1016/0041-008x(89)90259-7.

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23

Ishikawa, Akira, Tomoka Matsuda, Hyunjun Gam, et al. "Effect of Green Tea Extract Ingestion on Fat Oxidation during Exercise in the Menstrual Cycle: A Pilot Study." Nutrients 14, no. 19 (2022): 3896. http://dx.doi.org/10.3390/nu14193896.

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In women, fat oxidation during exercise changes with the menstrual cycle. This study aimed to investigate the effect of green tea extract (GTE) ingestion on fat oxidation during exercise depending on the menstrual cycle phase. Ten women with regular menstrual cycles participated in this randomized, double-blind, crossover study. GTE or placebo was administered during the menstrual cycle’s follicular phase (FP) and luteal phase (LP). Participants cycled for 30 min at 50% maximal workload, and a respiratory gas analysis was performed. Serum estradiol, progesterone, free fatty acid, plasma noradr

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24

Akmal, Akmal, and Elihami Elihami. "Implementation of Discovery Learning Model Towards Students Learning Outcome of XI-IPA1 Students on the Respiratory System Materials at Pangsid High School." Edumaspul: Jurnal Pendidikan 3, no. 1 (2019): 80–88. http://dx.doi.org/10.33487/edumaspul.v3i1.153.

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This Classroom Action Research (CAR) aims to determine the effect of the implementation of Discovery Learning models towards learning outcome of XI-IPA1 students, on the respiratory system subject matter at SMA 1 Pangsid. This study was conducted in two cycles, each cycle consist of four phases: planning, action, observation and reflection. The subjects were XI IPA 1 students school year 2015/2016, which is amounted to 32 people, consisting of 10 male students and 22 female students. Data analysis was performed with a descriptive quantitative technique. The results showed an increase in studen

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25

Carroll, Michael S., and Jan-Marino Ramirez. "Cycle-by-cycle assembly of respiratory network activity is dynamic and stochastic." Journal of Neurophysiology 109, no. 2 (2013): 296–305. http://dx.doi.org/10.1152/jn.00830.2011.

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Rhythmically active networks are typically composed of neurons that can be classified as silent, tonic spiking, or rhythmic bursting based on their intrinsic activity patterns. Within these networks, neurons are thought to discharge in distinct phase relationships with their overall network output, and it has been hypothesized that bursting pacemaker neurons may lead and potentially trigger cycle onsets. We used multielectrode recording from 72 experiments to test these ideas in rhythmically active slices containing the pre-Bötzinger complex, a region critical for breathing. Following synaptic

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26

Rigo, V., E. Graas, and J. Rigo. "High Specificity of Automated Respiratory Cycle Selection for Calculation of Respiratory Mechanics." Pediatric Research 70 (November 2011): 551. http://dx.doi.org/10.1038/pr.2011.776.

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27

Atanasov, Atanas Todorov, Kiril Hristov Tenev, and Dilyana Vicheva. "Dynamics and periods in the nasal cycle during night sleep by separate measurement of nostril respiration." Romanian Journal of Rhinology 13, no. 50 (2023): 70–76. http://dx.doi.org/10.2478/rjr-2023-0012.

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Abstract BACKGROUND. The registration of the nasal cycle by separate measurement of breathing through the left and the right nostril appears a non-invasive method, in which the passability of the nostrils is assessed by the respiratory amplitudes of the air. OBJECTIVE. To present the dynamics and periods of the nasal cycle during night sleep using the Interface 2-Channel System Method. MATERIAL AND METHODS. The recordings demonstrate the dynamics and periods of the nasal cycle during the night sleep of a healthy volunteer. RESULTS. The patient respiratory and nasal cycle through the left and r

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28

Tikhonov, V. F. "FEATURES OF RESPIRATORY CYCLES FORMATION IN «LONG CYCLE» EXERCISE OF KETTLEBELL LIFTING SPORTS." Современные наукоемкие технологии (Modern High Technologies) 1, no. 6 2021 (2021): 203–8. http://dx.doi.org/10.17513/snt.38723.

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29

Nabetani, Teru, Takeshi Ueda, and Keisuke Teramoto. "Measurement of Ventilatory Threshold by Respiratory Frequency." Perceptual and Motor Skills 94, no. 3 (2002): 851–59. http://dx.doi.org/10.2466/pms.2002.94.3.851.

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This study was conducted to assess whether respiratory frequency can be used as a valid parameter for estimating ventilatory threshold and for examining differences in exercise modes such as a cycle ergometer and a treadmill. 24 men and 12 women performed an incremental exercise test to exhaustion on a cycle ergometer and on a treadmill. Oxygen uptake, carbon dioxide output, pulmonary ventilation, ventilatory frequency, and heart rate were measured continuously every 30 sec. during the test. Three different and independent reviewers detected the ventilatory threshold point and break point of r

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Miller, M. J., W. A. Carlo, J. M. DiFiore, and R. J. Martin. "Airway obstruction during periodic breathing in premature infants." Journal of Applied Physiology 64, no. 6 (1988): 2496–500. http://dx.doi.org/10.1152/jappl.1988.64.6.2496.

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To characterize changes in pulmonary resistance, timing, and respiratory drive during periodic breathing, we studied 10 healthy preterm infants (body wt 1,340 +/- 240 g, postconceptional age 35 +/- 2 wk). Periodic breathing in these infants was defined by characteristic cycles of ventilation with intervening respiratory pauses greater than or equal to 2 s. Nasal airflow was recorded with a pneumotachometer, and esophageal or pharyngeal pressure was recorded with a fluid-filled catheter. Pulmonary resistance at half-maximal tidal volume, inspiratory time (TI), expiratory time (TE), and mean ins

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Soodaeva, S. K., I. A. Klimanov, and L. Yu Nikitina. "Particularities of nitric oxide cycle in respiratory disease." Russian Pulmonology 26, no. 6 (2016): 753–59. http://dx.doi.org/10.18093/0869-0189-2016-26-6-753-759.

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32

Thendral, C., and L. Santhanalakshmi. "Cardio Respiratory Responses between Treadmill and Ergometer Cycle." International Journal of Physiology 6, no. 3 (2018): 10. http://dx.doi.org/10.5958/2320-608x.2018.00076.8.

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33

Rafferty, G. F., and W. N. Gardner. "Control of the respiratory cycle in conscious humans." Journal of Applied Physiology 81, no. 4 (1996): 1744–53. http://dx.doi.org/10.1152/jappl.1996.81.4.1744.

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Rafferty, G. F., and W. N. Gardner. Control of the respiratory cycle in conscious humans. J. Appl. Physiol. 81(4): 1744–1753, 1996.—We studied in conscious humans the relative strength of mechanisms controlling timing and drive components of the respiratory cycle around their resting set points. A system of auditory feedback with end-tidal[Formula: see text] held constant in mild hyperoxia via an open circuit was used to induce subjects independently to change inspiratory time (Ti) and tidal volume (Vt I) over a wide range above and below the resting values for every breath for up to 1 h. Four

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34

Constantinescu, Constantin, Remus Brad, and Adrian Bărglăzan. "Lung Sounds Anomaly Detection with Respiratory Cycle Segmentation." BRAIN. Broad Research in Artificial Intelligence and Neuroscience 15, no. 3 (2024): 188. http://dx.doi.org/10.70594/brain/15.3/14.

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Employing machine learning algorithms in the medical field has proven successful for some time now. Mostly computer vision techniques have been applied to medical images, while medical sound data has been somewhat overlooked. By using electronic stethoscopes, it is now possible to process both heartbeats and lung sounds. While some products are available for detecting anomalies in heartbeats, addressing lung-related anomalies presents a more intricate challenge. Applying a deep learning approach is hindered by insufficient data. Although some datasets do exist, the size and diversity of the da

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35

Bureev, A. Sh, D. S. Zhdanov, I. Yu Zemlyakov, and M. V. Svetlik. "Processing bronchial sonograms to detect respiratory cycle fragments." IOP Conference Series: Materials Science and Engineering 66 (October 7, 2014): 012018. http://dx.doi.org/10.1088/1757-899x/66/1/012018.

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36

Wahyuni, Riska, Azwar Siregar, Ghina Salwa, et al. "Penerapan E-LKPD berbasis Project Based Learning (PjBL) untuk Meningkatkan Motivasi dan Hasil Belajar Siswa." Journal of Natural Sciences 2, no. 2 (2021): 62–71. http://dx.doi.org/10.34007/jonas.v2i2.99.

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The purpose of this study was to determine the increase in student motivation and learning outcomes by implementing E-LKPD based on Project Based Learning (PjBL) on the respiratory system material in humans in online learning in class VIII-B of SMP Negeri 3 Tarutung T.P. 2020/2021. The research method used is Classroom Action Research (CAR). This research was conducted in 2 cycles. The results of the student learning motivation questionnaire in the first cycle were 33.3% and the second cycle was 62.5% in the high category. Student learning outcomes in the first cycle 58.3% complete learning an

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37

Castillejos-López, Manuel, Yair Romero, Angelica Varela-Ordoñez, et al. "Hypoxia Induces Alterations in the Circadian Rhythm in Patients with Chronic Respiratory Diseases." Cells 12, no. 23 (2023): 2724. http://dx.doi.org/10.3390/cells12232724.

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The function of the circadian cycle is to determine the natural 24 h biological rhythm, which includes physiological, metabolic, and hormonal changes that occur daily in the body. This cycle is controlled by an internal biological clock that is present in the body’s tissues and helps regulate various processes such as sleeping, eating, and others. Interestingly, animal models have provided enough evidence to assume that the alteration in the circadian system leads to the appearance of numerous diseases. Alterations in breathing patterns in lung diseases can modify oxygenation and the circadian

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McFarland, David H. "Respiratory Markers of Conversational Interaction." Journal of Speech, Language, and Hearing Research 44, no. 1 (2001): 128–43. http://dx.doi.org/10.1044/1092-4388(2001/012).

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Respiratory movements were recorded from 10 dyads (20 subjects) during quiet breathing, reading aloud, spontaneous monologue, scripted dialog, and spontaneous conversation. Timing measures of inspiratory, expiratory, and total cycle duration were used to compare respiratory function during quiet breathing, listening, and speech. Cross-correlation analyses of the respiratory movements of conversational partners provided an index of conversational synchrony. Inspiratory duration was found to be the most consistent and sensitive measure for discriminating quiet breathing from speech breathing. In

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Robertson, J. Brian, Chris C. Stowers, Erik Boczko, and Carl Hirschie Johnson. "Real-time luminescence monitoring of cell-cycle and respiratory oscillations in yeast." Proceedings of the National Academy of Sciences 105, no. 46 (2008): 17988–93. http://dx.doi.org/10.1073/pnas.0809482105.

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The use of luciferase reporters has become a precise, noninvasive, high-throughput method for real-time monitoring of promoter activity in living cells, especially for rhythmic biological processes such as circadian rhythms. We developed a destabilized firefly luciferase as a reporter for rhythmic promoter activity in both the cell division and respiratory cycles of the budding yeast Saccharomyces cerevisiae in which real-time luminescence reporters have not been previously applied. The continuous output of light from luciferase reporters allowed us to explore the relationship between the cell

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40

Indriani, Cecilia, Saleh Hidayat, and Meli Astriani. "Improving learning outcomes through discovery learning on the human respiratory system material." Journal of Education and Learning (EduLearn) 19, no. 3 (2025): 1307–16. https://doi.org/10.11591/edulearn.v19i3.20987.

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Based on the results of observations at Madrasah Aliyah Negeri (State Islamic Senior High School) 1 Palembang, it was found that there were problems in learning biology; namely, the daily test scores for class XI science 2, semester 1 for the 2021/2022 around 30% of students have scored above the minimum completeness criteria (MCC) and the learning outcomes of school year 2020/2021 it shows only 29% or nine students out of 31 students achieve scores above the MCC. This research aims to improve student's learning outcomes in class XI science 2 using the discovery learning model. This type of re

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Tatulli, Eric, Julie Fontecave-Jallon, Pascale Calabrese, and Pierre-Yves Gumery. "Respiratory Inductance Plethysmography for Automated Swallowing Detection." International Journal of E-Health and Medical Communications 11, no. 2 (2020): 64–77. http://dx.doi.org/10.4018/ijehmc.2020040104.

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In the context of remote medical monitoring of swallowing, the authors investigate the potential of non-invasive respiratory inductance plethysmography (RIP) technique to automatically detect swallow events in a wide context of respiration and phonation. Signal acquisitions were carried out on 5 healthy volunteers equipped with RIP and electroglottograph as swallowing reference. They were asked for spontaneous breathing, speaking and diverse bolus ingesting. The RIP signal was then segmented into cycles, each cycle being annotated according to one of the three class of interest, respectively v

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Supit, Pusung Lucia A. M. Pati. "Penerapan Model Problem Based Learning untuk Meningkatkan Hasil Belajar IPA Siswa Kelas IV Sekolah Dasar." Jurnal Ilmiah Wahana Pendidikan 9, no. 19 (2023): 990–97. https://doi.org/10.5281/zenodo.10791368.

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<em>The aim of this research is to improve science learning outcomes through the application of the problem based learning (PBL) model for fourth grade students at SD GMIM V Tomohon. The research method used is classroom action research carried out in two cycles, the procedures in each cycle are: planning, implementation, observation and reflection. From the results of the existing research and discussion, researchers can conclude that the learning outcomes of respiratory organs in humans using the Problem Based Learning (PBL) model in cycle I, the percentage of completeness of student learnin

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SONE, RYOKO, FUMIO YAMAZAKI, NOBUHARU FUJII, YOSHIHARU NABEKURA, and HARUO IKEGAMI. "RECOVERY OF RESPIRATORY CARDIAC CYCLE VARIABILITY AFTER STRENUOUS EXERCISE." Japanese Journal of Physical Fitness and Sports Medicine 42, no. 5 (1993): 465–74. http://dx.doi.org/10.7600/jspfsm1949.42.465.

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Beardsmore, Caroline S., Simon Godfrey, Netta Shani, Channi Maayan, and Ephraim Bar-Yishay. "Airway Resistance Measurements throughout the Respiratory Cycle in Infants." Respiration 49, no. 2 (1986): 81–93. http://dx.doi.org/10.1159/000194864.

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Chen, Hsiun-Ing, and Ya-Ru Tang. "Effects of the Menstrual Cycle on Respiratory Muscle Function." American Review of Respiratory Disease 140, no. 5 (1989): 1359–62. http://dx.doi.org/10.1164/ajrccm/140.5.1359.

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Eccles, R. "A role for the nasal cycle in respiratory defence." European Respiratory Journal 9, no. 2 (1996): 371–76. http://dx.doi.org/10.1183/09031936.96.09020371.

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KITAGAWA, Michiyo. "Changes in insertion resistance of acupuncture accompanying respiratory cycle." Zen Nihon Shinkyu Gakkai zasshi (Journal of the Japan Society of Acupuncture and Moxibustion) 74, no. 2 (2024): 67–74. http://dx.doi.org/10.3777/jjsam.74.67.

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Rafferty, G. F., and W. N. Gardner. "20. Control of the respiratory cycle in conscious humans." Biological Psychology 41, no. 1 (1995): 96. http://dx.doi.org/10.1016/0301-0511(95)90960-8.

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Su, Yu-bin, Bo Peng, Hui Li, et al. "Pyruvate cycle increases aminoglycoside efficacy and provides respiratory energy in bacteria." Proceedings of the National Academy of Sciences 115, no. 7 (2018): E1578—E1587. http://dx.doi.org/10.1073/pnas.1714645115.

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The emergence and ongoing spread of multidrug-resistant bacteria puts humans and other species at risk for potentially lethal infections. Thus, novel antibiotics or alternative approaches are needed to target drug-resistant bacteria, and metabolic modulation has been documented to improve antibiotic efficacy, but the relevant metabolic mechanisms require more studies. Here, we show that glutamate potentiates aminoglycoside antibiotics, resulting in improved elimination of antibiotic-resistant pathogens. When exploring the metabolic flux of glutamate, it was found that the enzymes that link the

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Tzeng, Y. C., P. Y. W. Sin, and D. C. Galletly. "Human sinus arrhythmia: inconsistencies of a teleological hypothesis." American Journal of Physiology-Heart and Circulatory Physiology 296, no. 1 (2009): H65—H70. http://dx.doi.org/10.1152/ajpheart.00716.2008.

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Respiratory sinus arrhythmia (RSA) may serve an inherent function in optimizing pulmonary gas exchange efficiency via clustering and scattering of heart beats during the inspiratory and expiratory phases of the respiratory cycle. This study sought to determine whether physiological levels of RSA, enhanced by slow paced breathing, caused more heart beats to cluster in inspiration. In 12 human subjects, we analyzed the histogram distribution of heart beats throughout the respiratory cycle during paced breathing at 12, 9, and 6 breaths/min (br/min). The inspiratory period-to-respiratory period ra

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