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Journal articles on the topic 'Vibro fluctuations'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

MORDILLAT, Philippe, Fabrizio ERRICO, and Mehdi ZERRAD. "Underbody contribution simulation for vehicle wind-noise." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 4 (2024): 7306–17. http://dx.doi.org/10.3397/in_2024_3945.

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Wind noise is one of the largest sources to the interior noise of modern electric and hybrid vehicles. This noise is encountered when driving on roads and freeways and generate considerable fatigue for passengers on long journeys. Aero-acoustic noise is the result of turbulent and acoustic pressure fluctuations created within the flow. They are transmitted to the passenger compartment via the vibro-acoustic excitation of vehicle surfaces and underbody cavities. Generally, this is the dominant flow-induced source at low frequencies. The transmission mechanism through the vehicle floor and under

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Bajic´, Branko, and Andreas Keller. "Spectrum Normalization Method in Vibro-Acoustical Diagnostic Measurements of Hydroturbine Cavitation." Journal of Fluids Engineering 118, no. 4 (1996): 756–61. http://dx.doi.org/10.1115/1.2835506.

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Full-scale vibro-acoustical diagnostic measurements of cavitation in four Francis 6 MW double runner turbines were performed. Two types of sensors were used—a hydrophone sensing waterborne noise at the pressure side of a runner and an accelerometer mounted at various points at the outer turbine casing, facing the runner’s pressure side. The correlation of noise and acceleration intensity with suction-side pressure fluctuations and runner position was checked. A simple but efficient method of spectrum normalization, which rejects the influence of the measurement set characteristics and vibro-ac

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Dong, Liang, Yuemin Zhao, Liping Peng, et al. "Characteristics of pressure fluctuations and fine coal preparation in gas-vibro fluidized bed." Particuology 21 (August 2015): 146–53. http://dx.doi.org/10.1016/j.partic.2014.08.011.

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Kadmiri, Y., J. Perret-Liaudet, E. Rigaud, A. Le Bot, and L. Vary. "Influence of Multiharmonics Excitation on Rattle Noise in Automotive Gearboxes." Advances in Acoustics and Vibration 2011 (September 5, 2011): 1–6. http://dx.doi.org/10.1155/2011/659797.

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We consider the automotive gearbox rattle noise resulting from vibro-impacts that can occur between the idle gears under excessive velocity fluctuations of the shaft-driving gears imposed by engine torque fluctuation. Even if the rattling phenomenon has no consequence on reliability, it may be particularly annoying for vehicle interior sound quality and acoustic comfort. The main parameters governing such kind of vibrations are the excitation source associated with engine torque fluctuation which can be modeled by an imposed displacement of the driveline, the inertia of the idle gear, the drag

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Kumar, Rahul, Daniil Yurchenko, and Rachel Kuske. "Dynamics and targeted energy transfer in VINES with noisy excitation phase." Journal of Physics: Conference Series 2983, no. 1 (2025): 012004. https://doi.org/10.1088/1742-6596/2983/1/012004.

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Abstract Targeted energy transfer (TET) is one of the passive approaches for the attenuation of vibration by facilitating the irreversible energy transfer from the primary oscillator (LO) to an auxiliary system. Recent studies on TET through vibro-impact nonlinear energy sink (VINES) have shown improved performance over a broad frequency spectrum. In VINES, we consider a ball which oscillates inside the linear oscillator (LO), transferring energy through the impacts and mitigating the vibration of the LO. Previous studies have given impetus on energy transfer through VINES under deterministic

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Mukherjee, Snehashis, and Anoop Akkoorath Mana. "A fully-coupled vibro-acoustic model of an electronic stethoscope." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 4 (2023): 3746–53. http://dx.doi.org/10.3397/in_2022_0527.

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A piezoelectric based stethoscope picks pressure fluctuations originating from the patient and the physician sides. This may include unwanted acoustic signals from the patient and the doctor sides of the stethoscope, which needs to be filtered either electronically or mechanically by appropriately designing the vibro-acoustic elements of the electronic stethoscope. This work intends to establish a mathematical model of the piezoelectric stethoscope. Initially, a multi-degrees of freedom vibration model of the electronic stethoscope is developed. The model is used to compute the response of the

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Brancati, Renato, Ernesto Rocca, Daniela Siano, and Massimo Viscardi. "Experimental vibro-acoustic analysis of the gear rattle induced by multi-harmonic excitation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 6 (2017): 785–96. http://dx.doi.org/10.1177/0954407017707670.

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The paper reports a wide vibro-acoustic experimental investigation of the gear rattle phenomenon induced by multi-harmonic excitation. The analysis is performed by using different measurement techniques which allow some of the significant parameters in this type of investigation to be acquired on a specific test rig: the angular rotations of the gears by using encoders; the accelerations obtained from a triaxial accelerometer; the sound pressure level determined by employing both acoustic microphones; the correct evaluation of the acoustic sources by utilizing a p–v sound intensity probe. Perf

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Guillon, Corentin, Emmanuel Redon, and Laurent Maxit. "Vibroacoustic simulations with non-homogeneous TBL excitations: Synthesis of wall pressure fields with the Continuously-varying Uncorrelated Wall Plane Waves approach." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 7 (2023): 544–51. http://dx.doi.org/10.3397/in_2022_0075.

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A numerical method is presented to predict the vibro-acoustic response of a vibrating structure excited by a spatially inhomogeneous turbulent boundary layer(TBL). It is based on the synthesis of different realizations of the random pressure fluctuations that can be introduced as loadings of a vibro-acoustic model (such as a finite element model). To generate the pressures of the non-homogeneous turbulent boundary layer, the Uncorrelated Wall Plane Wave(UWPW) approach used so far for homogeneous TBL is extended. On a first step, this extension is based on a decomposition of the excited surface

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Mironova, N. A. "Research of the heat of physical characteristics of fruit ossicles." Power engineering: research, equipment, technology 21, no. 6 (2020): 19–28. http://dx.doi.org/10.30724/1998-9903-2019-21-6-19-28.

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Utilization of fruit seeds plays a special role, since they are a valuable raw material for the oil and fat industry, at the enterprises of which the complex processing of seeds is carried out: oil is obtained from kernels, crumbs and powder are obtained from shells. Before placing the seeds in the oil and fat enterprises, they must be cleaned of impurities and dried, since the seeds extracted from the fruits have an increased humidity of 25-60% and contain a significant amount of impurities in the form of pulp and squeezes. However, due to the lack of specialized equipment for drying fruit se

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Washizu, Tomoya, Tadayoshi Fukushima, Kenichi Hirose, et al. "Numerical Analysis of Wind Noise Transmission through BEV Underbody." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 266, no. 2 (2023): 818–28. http://dx.doi.org/10.3397/nc_2023_01_1119.

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In electrified automobiles, wind noise significantly contributes to the overall noise inside the cabin. In particular, underbody airflow is a dominant noise source at low frequencies (less than 500 Hz). However, the wind noise transmission mechanism through a battery electric vehicle (BEV) underbody is complex because the BEV has a battery under the floor panel. Although various types of underbody structures exist for BEVs, in this study, the focus was on an underbody structure with two surfaces as inputs of wind noise sources: the outer surface exposed to the external underbody flow, such as

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Wang, Jing-Shang, Ye Huang, Shuping Zhang та ін. "A Protective Role of Paeoniflorin in Fluctuant Hyperglycemia-Induced Vascular Endothelial Injuries through Antioxidative and Anti-Inflammatory Effects and Reduction of PKCβ1". Oxidative Medicine and Cellular Longevity 2019 (10 квітня 2019): 1–11. http://dx.doi.org/10.1155/2019/5647219.

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Hyperglycemia fluctuation is associated with diabetes mellitus (DM) complications when compared to persistent hyperglycemia. Previous studies have shown that paeoniflorin (PF), through its antiapoptosis, anti-inflammation, and antithrombotic properties, effectively protects against cardiovascular and cerebrovascular disease. However, the mechanism underlying the protection from PF against vascular injuries induced by hyperglycemia fluctuations remains poorly understood. Herein, we investigated the potential protective role of PF on human umbilical vein endothelial cells (HUVECs) subjected to i

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Niccolini Marmont Du Haut Champ, Carlo Alberto, Aristide Fausto Massardo, Mario Luigi Ferrari, and Paolo Silvestri. "Surge prevention in gas turbines: an overview over historical solutions and perspectives about the future." E3S Web of Conferences 113 (2019): 02003. http://dx.doi.org/10.1051/e3sconf/201911302003.

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The aim of the present work is to retrace experimental, analytical and numerical analyses which deal with compressor instability phenomena, such as rotating stall and surge. While the first affects only the machine itself, the second involves the whole energy system. Surge onset is characterized by strong pressure and mass flow rate fluctuations which can even lead to reverse flow through the compressor. Experimental studies on prevention of axial compressor fluid dynamic instabilities, which can be propagated and eventually damage the solid structure, have been carried out by many authors. Th

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Kreeger, Lauren J., Arslaan Arshed, and Katrina M. MacLeod. "Intrinsic firing properties in the avian auditory brain stem allow both integration and encoding of temporally modulated noisy inputs in vitro." Journal of Neurophysiology 108, no. 10 (2012): 2794–809. http://dx.doi.org/10.1152/jn.00092.2012.

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The intrinsic properties of tonically firing neurons in the cochlear nucleus contribute to representing average sound intensity by favoring synaptic integration across auditory nerve inputs, reducing phase locking to fine temporal acoustic structure and enhancing envelope locking. To determine whether tonically firing neurons of the avian cochlear nucleus angularis (NA) resemble ideal integrators, we investigated their firing responses to noisy current injections during whole cell patch-clamp recordings in brain slices. One subclass of neurons (36% of tonically firing neurons, mainly subtype t

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Demb, Jonathan B., Peter Sterling, and Michael A. Freed. "How Retinal Ganglion Cells Prevent Synaptic Noise From Reaching the Spike Output." Journal of Neurophysiology 92, no. 4 (2004): 2510–19. http://dx.doi.org/10.1152/jn.00108.2004.

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Synaptic vesicles are released stochastically, and therefore stimuli that increase a neuron's synaptic input might increase noise at its spike output. Indeed this appears true for neurons in primary visual cortex, where spike output variability increases with stimulus contrast. But in retinal ganglion cells, although intracellular recordings (with spikes blocked) showed that stronger stimuli increase membrane fluctuations, extracellular recordings showed that noise at the spike output is constant. Here we show that these seemingly paradoxical findings occur in the same cell and explain why. We

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Hayashi, Kumiko, Yuta Tsuchizawa, Mitsuhiro Iwaki, and Yasushi Okada. "Application of the fluctuation theorem for noninvasive force measurement in living neuronal axons." Molecular Biology of the Cell 29, no. 25 (2018): 3017–25. http://dx.doi.org/10.1091/mbc.e18-01-0022.

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Although its importance is recently widely accepted, force measurement has been difficult in living biological systems, mainly due to the lack of the versatile noninvasive force measurement methods. The fluctuation theorem, which represents the thermodynamic properties of small fluctuating nonequilibrium systems, has been applied to the analysis of the thermodynamic properties of motor proteins in vitro. Here we extend it to the axonal transport (displacement) of endosomes. The distribution of the displacement fluctuation had three or four distinct peaks around multiples of a unit value, which

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Chen, Weihua, Luyun Chen, Hong Yi, and Jianshuai Dong. "Flow-Induced Noise Characteristics Analysis of a Pipeline Structure in a Cabin Rigid Corner." Applied Sciences 13, no. 21 (2023): 11772. http://dx.doi.org/10.3390/app132111772.

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The acoustic radiation characteristics of pipeline structures caused by turbulent fluctuating pressure are among the most important acoustic radiation sources in vessel cabins. Studying the vibro-acoustic characteristics of pipeline structures is of great relevance to engineering. The turbulence fluctuation pressure of pipeline structures’ inner surfaces was numerically analyzed by using the large eddy simulation (LES) method. At first, the vibro-acoustic differential equation of the pipeline structure system was derived by defining the fluctuation pressure as the excitation loading. According

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Yokobori, A. T., T. Maeyama, T. Ohkuma, et al. "Bio-Medico-Mechanical Behavior of Natural Artery Blood Vessel Under Constant and Variable Internal Pulsatile Pressure Flow Test In Vitro." Journal of Biomechanical Engineering 108, no. 4 (1986): 295–300. http://dx.doi.org/10.1115/1.3138617.

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Studies have been carried out on the bio-medico-mechanical behavior in vitro of natural blood vessel (dogs) under constant and variable internal pulsatile pressure flow. The apparatus designed by us well simulated the arterial system. The studies were made for the case of pressure amplitude kept as constant, of the two-step-multi-duplicated pulsatile pressure and of the fluctuating pressure. For the case of the fluctuating pressure, the strength of the artery becomes considerably lower than those under constant amplitude and two-step-multi-duplicated pulsatile pressure. SEM observations of the

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de Albuquerque, Janai Pereira, João Paulo Ribeiro-Oliveira, João Bosco de Oliveira-Júnior, Frederico Henrique da Silva Costa, and Edvaldo Aparecido Amaral da Silva. "Understanding In Vitro Embryo Development through Classical Germination Measurements: A Case Study of Dragon’s Blood (Croton lechleri Müll Arg.)." Agriculture 13, no. 8 (2023): 1618. http://dx.doi.org/10.3390/agriculture13081618.

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Sample size fluctuation and the restriction of measurements that demonstrate kinetics (typical of physiological processes) are two of the largest inferential constraints in studies on embryonic development in vitro. Thus, we hypothesize that a practical and robust way of aggregating knowledge on aspects of embryonic development in vitro is to use measurements based on the binary counting component. These are typically used to measure the germination process (intraeminal embryonal development). Our biological model was Dragon’s blood (Croton lechleri Müll Arg.), a species native to the Amazon w

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IWABUCHI, Masatoshi, Yuusuke NAOI, Hideyasu SUMIYA, and Masatake SHIRAISHI. "302 Vibro Masseur Relaxation Device using Fluctuation Eect." Proceedings of Ibaraki District Conference 2008 (2008): 61–62. http://dx.doi.org/10.1299/jsmeibaraki.2008.61.

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Ishijima, Akihiko, Takashi Doi, Katsuhiko Sakurada, and Toshio Yanagida. "Sub-piconewton force fluctuations of actomyosin in vitro." Nature 352, no. 6333 (1991): 301–6. http://dx.doi.org/10.1038/352301a0.

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Schmedt, E., and L. Kleiman. "The measurement of the production of during erythroid differentiation of the Friend erythroleukemia cell." Biochemistry and Cell Biology 65, no. 3 (1987): 188–94. http://dx.doi.org/10.1139/o87-024.

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The production of [Formula: see text] during Friend cell erythroid differentiation has been studied. In vitro measurements of total nuclear RNA synthesis in nuclei isolated from Friend cells at different stages of differentiation show the total RNA synthesis increases 1.5-fold at day 1 of induction and then decreases through days 2 and 3 to approximately 75% of its rate of synthesis in the nuclei of uninduced cells. The synthesis of RNA polymerase III transcripts undergoes a similar fluctuation through day 2 of induction, but increases again at day 3. The specific synthesis of [Formula: see te

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Hatori, Kuniyuki, Hajime Honda, and Koichiro Matsuno. "ATP-dependent fluctuations of single actin filaments in vitro." Biophysical Chemistry 58, no. 3 (1996): 267–72. http://dx.doi.org/10.1016/0301-4622(95)00100-x.

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Townsley, Loni, Marilou P. Sison Mangus, Sanjin Mehic, and Fitnat H. Yildiz. "Response of Vibrio cholerae to Low-Temperature Shifts: CspV Regulation of Type VI Secretion, Biofilm Formation, and Association with Zooplankton." Applied and Environmental Microbiology 82, no. 14 (2016): 4441–52. http://dx.doi.org/10.1128/aem.00807-16.

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ABSTRACTThe ability to sense and adapt to temperature fluctuation is critical to the aquatic survival, transmission, and infectivity ofVibrio cholerae, the causative agent of the disease cholera. Little information is available on the physiological changes that occur whenV. choleraeexperiences temperature shifts. The genome-wide transcriptional profile ofV. choleraeupon a shift in human body temperature (37°C) to lower temperatures, 15°C and 25°C, which mimic those found in the aquatic environment, was determined. Differentially expressed genes included those involved in the cold shock respons

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Hammond, WP, TC Boone, RE Donahue, LM Souza, and DC Dale. "A comparison of treatment of canine cyclic hematopoiesis with recombinant human granulocyte-macrophage colony-stimulating factor (GM- CSF), G-CSF interleukin-3, and canine G-CSF." Blood 76, no. 3 (1990): 523–32. http://dx.doi.org/10.1182/blood.v76.3.523.523.

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Abstract Cyclic hematopoiesis in gray collie dogs is a stem cell disease in which abnormal regulation of cell production in the bone marrow causes cyclic fluctuations of blood cell counts. In vitro studies demonstrated that recombinant human granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-3 (IL-3), and granulocyte colony stimulating factor (G-CSF) all stimulated increases in colony formation by canine bone marrow progenitor cells. Based on these results, gray collie dogs were then treated with recombinant human (rh) GM-CSF, IL-3, or G-CSF subcutaneously to test the hypot

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Hammond, WP, TC Boone, RE Donahue, LM Souza, and DC Dale. "A comparison of treatment of canine cyclic hematopoiesis with recombinant human granulocyte-macrophage colony-stimulating factor (GM- CSF), G-CSF interleukin-3, and canine G-CSF." Blood 76, no. 3 (1990): 523–32. http://dx.doi.org/10.1182/blood.v76.3.523.bloodjournal763523.

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Cyclic hematopoiesis in gray collie dogs is a stem cell disease in which abnormal regulation of cell production in the bone marrow causes cyclic fluctuations of blood cell counts. In vitro studies demonstrated that recombinant human granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-3 (IL-3), and granulocyte colony stimulating factor (G-CSF) all stimulated increases in colony formation by canine bone marrow progenitor cells. Based on these results, gray collie dogs were then treated with recombinant human (rh) GM-CSF, IL-3, or G-CSF subcutaneously to test the hypothesis tha

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Forney, Ronny, Gabriela Rios-Sotelo, Alexa Lindauer, Craig K. R. Willis, and Jamie Voyles. "Temperature shifts associated with bat arousals during hibernation inhibit the growth of Pseudogymnoascus destructans." Royal Society Open Science 9, no. 11 (2022): 211986. https://doi.org/10.5281/zenodo.13532726.

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(Uploaded by Plazi for the Bat Literature Project) Temperature is a critically important factor in many infectious disease systems, because it can regulate responses in both the host and the pathogen. White-nose syndrome (WNS) in bats is a severe infectious disease caused by the temperature-sensitive fungus, Pseudogymnoascus destructans (Pd). One feature of WNS is an increase in the frequency of arousal bouts (i.e. when bat body temperatures are elevated) in Pd-infected bats during hibernation. While several studies have proposed that increased frequency of arousals may play a role in the path

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Forney, Ronny, Gabriela Rios-Sotelo, Alexa Lindauer, Craig K. R. Willis, and Jamie Voyles. "Temperature shifts associated with bat arousals during hibernation inhibit the growth of Pseudogymnoascus destructans." Royal Society Open Science 9, no. 11 (2022): 211986. https://doi.org/10.5281/zenodo.13532726.

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(Uploaded by Plazi for the Bat Literature Project) Temperature is a critically important factor in many infectious disease systems, because it can regulate responses in both the host and the pathogen. White-nose syndrome (WNS) in bats is a severe infectious disease caused by the temperature-sensitive fungus, Pseudogymnoascus destructans (Pd). One feature of WNS is an increase in the frequency of arousal bouts (i.e. when bat body temperatures are elevated) in Pd-infected bats during hibernation. While several studies have proposed that increased frequency of arousals may play a role in the path

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Tokarska, Malgorzata, Hubert Greppin, Claude Penel, and Marc Bonzon. "In Vitro Slow Fluctuation in Horseradish Peroxidase Activity." Chronobiology International 10, no. 4 (1993): 238–43. http://dx.doi.org/10.3109/07420529309059706.

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Tokarska, Malgorzata, Hubert Greppin, Claude Penel, and Marc Bonzon. "In Vitro Slow Fluctuation in Horseradish Peroxidase Activity." Chronobiology International 10, no. 4 (1993): 238–43. http://dx.doi.org/10.1080/07420529309059706.

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Kuo, Yi-Wei, Yen-Yu Huang, Shin-Yu Tsai, et al. "Probiotic Formula Ameliorates Renal Dysfunction Indicators, Glycemic Levels, and Blood Pressure in a Diabetic Nephropathy Mouse Model." Nutrients 15, no. 12 (2023): 2803. http://dx.doi.org/10.3390/nu15122803.

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One-third of patients with end-stage chronic kidney disease (CKD) experience diabetic nephropathy (DN), which worsens the progression of renal dysfunction. However, preventive measures for DN are lacking. Lactobacillus acidophilus TYCA06, Bifidobacterium longum subsp. infantis BLI-02, and Bifidobacterium bifidum VDD088 probiotic strains have been demonstrated to delay CKD progression. This study evaluated their biological functions to stabilize blood-glucose fluctuations and delay the deterioration of renal function. The db/db mice were used to establish a DN animal model. This was supplemente

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ARAKAWA, Yohei, Yuusuke NAOI, and Hideyasu SUMIYA. "1003 Vibro Masseur Relaxation Device Using Fluctuation Effect in Transverse lying posture." Proceedings of Ibaraki District Conference 2009 (2009): 257–58. http://dx.doi.org/10.1299/jsmeibaraki.2009.257.

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Qi, Liu, Tang Chao, and Ouyang Qi. "Fluctuation theorem for the mutation process in in vitro evolution." Chinese Physics B 19, no. 4 (2010): 040202. http://dx.doi.org/10.1088/1674-1056/19/4/040202.

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Murayama, Yoshinobu, Tomoki Abe, and Zunyi Tang. "Temperature Dynamics in Early Pregnancy: Implications for Improving In Vitro Fertilization Outcomes." Applied Sciences 14, no. 16 (2024): 7392. http://dx.doi.org/10.3390/app14167392.

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In assisted reproductive technology, in vitro fertilization involves cultivating embryos in an artificial environment, often yielding lower-quality embryos compared to in vivo conditions. This study investigated core body temperature (CBT) fluctuations in mice during early pregnancy. Their CBT was measured with a high temporal resolution to identify the optimal thermal conditions during the first five days post-fertilization, aiming to improve in vitro culture conditions. Data were collected from 12 female mice, with 8 becoming pregnant, using temperature loggers every minute for 11 days. Data

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Herawati*, Netti, Suriati Eka Putri, Satria Putra Jaya Negara, Rizal Irfandi, Maulida Mazaya, and Abd Rahman. "Antioxidant Potential of Phenolic Compounds from Sonneratia caseolaris Mangrove Roots: Isolation, Spectroscopic Analysis, Molecular Docking, Molecular Dynamic, and In-Vitro Studies." Jurnal IPA & Pembelajaran IPA 9, no. 2 (2025): 326–41. https://doi.org/10.24815/jipi.v9i2.44821.

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Free radicals contribute to the onset of various degenerative diseases, highlighting the need for safe and effective antioxidants. Given the potential side effects associated with synthetic antioxidants, Sonneratia caseolaris is considered a promising natural alternative. This study aims to isolate secondary metabolites from the roots of S. caseolaris, evaluate their antioxidant activity, and analyze their molecular interactions. Extraction was conducted using a range of solvents, and antioxidant activity was assessed using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. The ethyl acetate fra

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Robertson, Lucy J. "Fluctuations in rat liver alanine-amino-transferase activity during experimental nippostrongylosis." Parasitology 98, no. 2 (1989): 301–6. http://dx.doi.org/10.1017/s0031182000062223.

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SUMMARYThe activity of the gluconeogenic enzyme, alanine-amino-transferase (ALT), in a preparation from the liver of rats was studied by means of an in vitro assay throughout the course of a primary infection of Nippostrongylus brasiliensis, established by a subcutaneous injection of approximately 4000 3rd-stage larvae. The activity was measured on days 1–14 p.i. in both uninfected and infected rats and a marked pattern in the enzyme's activity was observed. In infected rats, the activity increased from 1·46±0·19 U/g liver on day 1 p.i. to a peak on day 4 p.i. of 10·75±1·62 U/g liver, then dec

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Ivić, Z., Ž. Pržulj, D. Kostić, D. Kapor, and M. Škrinjar. "Effects of quantum lattice fluctuations on vibron pairing in two-site systems." Physical Review B 54, no. 5 (1996): 2992–95. http://dx.doi.org/10.1103/physrevb.54.2992.

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Henrici, Ryan C., Donelly A. van Schalkwyk, and Colin J. Sutherland. "Transient temperature fluctuations severely decrease P. falciparum susceptibility to artemisinin in vitro." International Journal for Parasitology: Drugs and Drug Resistance 9 (April 2019): 23–26. http://dx.doi.org/10.1016/j.ijpddr.2018.12.003.

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Raigorodskaya, M. R., and D. A. Sakharov. "Transcriptome analysis of signaling pathways involved in the formation of intestinal villi in Caco-2 cells." Biotekhnologiya 36, no. 1 (2020): 25–29. http://dx.doi.org/10.21519/0234-2758-2020-36-1-25-29.

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Caco-2 cells are traditionally used to construct in vitro models of the intestinal barrier. One of the characteristics of the mature intestine is the presence of villi, outgrowths of connective tissue covered with epithelial cells. Recently it has been shown that during prolonged cultivation Caco-2 cells form structures resembling intestinal villi. Here, using transcriptome analysis, we showed that BMP and PDGF signaling involved in the formation of villi in vivo significantly altered during the differentiation of Caco-2 cells and, thus, can participate in the formation of similar structures i

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Imafuku, Y., Y. Y. Toyoshima, and K. Tawada. "Fluctuation in the microtubule sliding movement driven by kinesin in vitro." Biophysical Journal 70, no. 2 (1996): 878–86. http://dx.doi.org/10.1016/s0006-3495(96)79631-5.

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Lubejko, Susan T., Bertrand Fontaine, Sara E. Soueidan, and Katrina M. MacLeod. "Spike threshold adaptation diversifies neuronal operating modes in the auditory brain stem." Journal of Neurophysiology 122, no. 6 (2019): 2576–90. http://dx.doi.org/10.1152/jn.00234.2019.

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Single neurons function along a spectrum of neuronal operating modes whose properties determine how the output firing activity is generated from synaptic input. The auditory brain stem contains a diversity of neurons, from pure coincidence detectors to pure integrators and those with intermediate properties. We investigated how intrinsic spike initiation mechanisms regulate neuronal operating mode in the avian cochlear nucleus. Although the neurons in one division of the avian cochlear nucleus, nucleus magnocellularis, have been studied in depth, the spike threshold dynamics of the tonically f

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Orsi, Nicolas M., Nadia Gopichandran, Henry J. Leese, Helen M. Picton, and Sarah E. Harris. "Fluctuations in bovine ovarian follicular fluid composition throughout the oestrous cycle." Reproduction 129, no. 2 (2005): 219–28. http://dx.doi.org/10.1530/rep.1.00460.

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Bovine oocyte maturation in vitro frequently results in abnormal cytoplasmic maturation and failure to acquire developmental competence. This is, in part, likely to be due to the non-physiological nutritional milieu to which oocytes are exposed. Improvements in oocyte developmental potential may be achieved by modelling nutrient profiles on those of preovulatory follicular fluid (FF). However, little is known about fluctuations in FF nutrient levels according to follicle dominance and oestrous cyclicity. This study therefore characterised the carbohydrate and amino acid profile of FF according

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Russo, Vincenzo C., Sandra Higgins, George A. Werther, and Fergus J. Cameron. "Effects of Fluctuating Glucose Levels on Neuronal Cells In Vitro." Neurochemical Research 37, no. 8 (2012): 1768–82. http://dx.doi.org/10.1007/s11064-012-0789-y.

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Stagner, J. I., and E. Samols. "Perturbation of insulin oscillations by nerve blockade in the in vitro canine pancreas." American Journal of Physiology-Endocrinology and Metabolism 248, no. 5 (1985): E516—E521. http://dx.doi.org/10.1152/ajpendo.1985.248.5.e516.

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The in vitro canine pancreas produces an oscillatory pattern of insulin secretion during a constant glucose concentration despite the lack of external nervous modulation or recirculating hormone feedback. The normal period of insulin fluctuations (7.4 +/- 0.34 min) is unaffected by combined adrenergic and cholinergic blockade by 5 microM atropine, 4 microM propranolol, and 4 microM phentolamine (8.0 +/- 0.31 min, P less than 0.20). To test the theory that the coordination of islet secretion may be controlled by an intrapancreatic nervous system (nonadrenergic, noncholinergic), nerve blockade w

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Hirata, Daigo, Toshiki Taba, Masaki Edamatsu, et al. "1P261 Fluctuation analysis of microtubule sliding over kinesin thick filaments in vitro(9. Molecular motor (I),Poster Session,Abstract,Meeting Program of EABS & BSJ 2006)." Seibutsu Butsuri 46, supplement2 (2006): S212. http://dx.doi.org/10.2142/biophys.46.s212_1.

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Noda, Naoki, Yasuhiro Imafuku, Akira Yamada, and Katsuhisa Tawada. "Fluctuation of actin sliding over myosin thick filaments in vitro." BIOPHYSICS 1 (2005): 45–53. http://dx.doi.org/10.2142/biophysics.1.45.

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Tsuruyama, Tatsuaki, Weizhi Liu, and Kenichi Yoshikawa. "In Vitro Murine Leukemia Retroviral Integration and Structure Fluctuation of Target DNA." PLoS ONE 7, no. 2 (2012): e31533. http://dx.doi.org/10.1371/journal.pone.0031533.

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Qian, Nianchao, Atsuhiko Ichimura, Daisuke Takei, et al. "TRPM7 channels mediate spontaneous Ca2+ fluctuations in growth plate chondrocytes that promote bone development." Science Signaling 12, no. 576 (2019): eaaw4847. http://dx.doi.org/10.1126/scisignal.aaw4847.

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During endochondral ossification of long bones, the proliferation and differentiation of chondrocytes cause them to be arranged into layered structures constituting the epiphyseal growth plate, where they secrete the cartilage matrix that is subsequently converted into trabecular bone. Ca2+ signaling has been implicated in chondrogenesis in vitro. Through fluorometric imaging of bone slices from embryonic mice, we demonstrated that live growth plate chondrocytes generated small, cell-autonomous Ca2+ fluctuations that were associated with weak and intermittent Ca2+ influx. Several genes encodin

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Bruen, Christine M., Anthony P. Kett, Fiona O'Halloran, et al. "Effect of gelatinisation of starch with casein proteins on incretin hormones and glucose transporters in vitro." British Journal of Nutrition 107, no. 2 (2011): 155–63. http://dx.doi.org/10.1017/s0007114511002698.

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Foods that have a low glycaemic index or foods that contain slowly digestible starch are beneficial in controlling fluctuations in blood glucose and insulin levels. The study hypothesis is that gelatinisation of starch in structured casein networks provides a method for decreasing the digestion rate of the starch and, hence, minimising postprandial glucose fluctuations. This study examined the effect of starch gelatinisation with or without casein on (1) gene expression and peptide secretion levels of the incretin hormones glucagon-like peptide 1 and glucose-independent insulinotropic polypept

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Do, Giap Dang, Hien Thi Dieu Huynh, The Danh Tran, and Tuan Trong Tran. "USING NATURAL LIGHT ON MICROPROPAGATION OF SWEET POTATO ( Ipomoea batatas L. ) IN AREA OF HO CHI MINH CITY." Science and Technology Development Journal 15, no. 3 (2012): 36–46. http://dx.doi.org/10.32508/stdj.v15i3.1845.

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Plantlets of sweet potato ( Ipomoea batatas L. ) were cultured in vitro under three different ambient conditions including a standard culture room - PS, a culture room inside a glasshouse with natural light but controlled temperature - TH, and a standard glasshouse with natural light (natural fluctuations of temperature) - NP. Plantlets from three treatments were compared in terms of pathogen rate, growth, survival plant at the end of the in vitro stage and at the ex vitro acclimatization. This result showed that, after 28 days of culture, sweet potato plants were cultured in vitro TH conditio

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Keenan, Joanne, Karina Horgan, Martin Clynes, et al. "Unexpected fluctuations of trace element levels in cell culture medium in vitro: caveat emptor." In Vitro Cellular & Developmental Biology - Animal 54, no. 8 (2018): 555–58. http://dx.doi.org/10.1007/s11626-018-0285-z.

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