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Journal articles on the topic 'Pressure'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Dinamarco, Nelson, Grazia Maria Guerra, Frida Liane Plavnik, Luis Cuadrado Martin, and Luiz Aparecido Bortolotto. "MELHORANDO O CONTROLE DA PRESSÃO ARTERIAL COM A ADOÇÃO DA AUTOMEDIÇÃO DA PRESSÃO ARTERIAL– AMPA." Revista Brasileira de Hipertensão 29, no. 2 (2022): 34–36. http://dx.doi.org/10.47870/1519-7522/2022290234-6.

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Blood Pressure Self-Measurement (BPSM) has gained interest lately and its practice can contribute to the diagnosis and follow-up of arterial hypertension. In Brazil, due to difficulties in carrying out Home Blood Pressure Monitoring (HBPM) and the unavailability of Ambulatory Blood Pressure Monitoring (ABPM) in most facilities, AMPA, which differs from the aforementioned methods, has widespread use in our country. Therefore, it seems important to discuss this method, which is largely used and poorly studied. In this paper, we will describe the methods for measuring blood pressure, auscultatory

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Shashi, Bhushan Kumar, and Krishna Prasad Bijay. "A Comparative Assessment of Various Hemodynamic Parameters between Urban and Rural Population: An Analytical Study." International Journal of Current Pharmaceutical Review and Research 15, no. 12 (2023): 107–11. https://doi.org/10.5281/zenodo.11371590.

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Aim: The aim of the present study was to assess systolic blood pressure, diastolic blood pressure, mean arterialpressure. pulse pressure, chronic kidney disease.Methods: The present study was conducted in the Department of Physiology for nine months and involved 100subjects both from urban and rural areas. The subjects were selected in the age group of 20 to 60 years this wasdoneResults: The systolic blood pressure of both rural and urban population was compared using F test and a p valueof 0.48 was obtained. The diastolic blood pressure of both rural and urban population was compared andanaly

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3

Ruth, P. J. van, R. R. Hillis, and R. E. Swarbrick. "DETECTING OVERPRESSURE USING POROSITY-BASED TECHNIQUES IN THE CARNARVON BASIN, AUSTRALIA." APPEA Journal 42, no. 1 (2002): 559. http://dx.doi.org/10.1071/aj01032.

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Overpressure has been encountered in many wells drilled in the Carnarvon Basin. Sonic logs are used to estimate pore pressure in shales in the Carnarvon Basin using the Eaton and equivalent depth methods of estimating pore pressure from velocity data with reference to a normal compaction trend. The crux of pore pressure estimation from the sonic log lies in the determination of the normal compaction trend, i.e. the acoustic travel time (Δt)/depth (z) trend for normally pressured sediments. The normal compaction trend for shales in the Carnarvon Basin was established by fitting an Athy-type exp

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4

John, Ajesh, Ashutosh Kumar, Karthikeyan G., and Pankaj Gupta. "An integrated pore-pressure model and its application to hydrocarbon exploration: A case study from the Mahanadi Basin, east coast of India." Interpretation 2, no. 1 (2014): SB17—SB26. http://dx.doi.org/10.1190/int-2013-0078.1.

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An integrated pore-pressure modeling approach was adopted to understand the basin architecture from a pressure perspective and its inference toward possible hydrocarbon occurrence. Kriging-based 3D pore-pressure modeling was used with offset well data and seismic velocities to establish the pressure stratigraphy of the northeast coast (NEC) field (southern part) in the Mahanadi Basin. Late Pliocene sediment is moderately pressured ([Formula: see text]), whereas early Pliocene sediment is normally pressured ([Formula: see text]) and compacted, representing a regional seal for this part of the b

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DS, Dr Rajeev. "Peripheral Venous Pressure: An Alternative to Central Venous Pressure?" Journal of Medical Science And clinical Research 05, no. 04 (2017): 20685–91. http://dx.doi.org/10.18535/jmscr/v5i4.154.

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6

Wheeler, Abigail, Shanti Farrington, Fay Sweeting, Amy Brown, and Andrew Mayers. "Perceived Pressures and Mental Health of Breastfeeding Mothers: A Qualitative Descriptive Study." Healthcare 12, no. 17 (2024): 1794. http://dx.doi.org/10.3390/healthcare12171794.

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When a mother is supported to breastfeed, the benefits for her mental health are significant. However, if pressured or unsupported, the opposite is true. This research examines mothers’ breastfeeding experiences, exploring how perceived pressure can impact perinatal mental health. A sample of 501 respondents to a research questionnaire was explored using Reflexive Thematic Analysis. Three main themes identified were perceived pressure to breastfeed, perceived pressure not to breastfeed and mental health impact. The main findings were that mothers received conflicting advice from healthcare pro

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Varan, Nilufer Yildiz. "Wireless pressure sensors for pressure garments treated with chitosan." International Journal of Clothing Science and Technology 29, no. 5 (2017): 732–42. http://dx.doi.org/10.1108/ijcst-12-2016-0136.

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Purpose The purpose of this paper is to analyze the effects of chitosan treatments on exerted pressures of nylon 6.6/elastane pressure garments in three different knit structures using wireless pressure sensors for an accurate and a precise scar management for future designs. Design/methodology/approach Pressure garments designed in different structures consist of 70/30 and 75/25 nylon 6.6/elastane were treated with chitosan and the exerted pressures were analyzed using wireless pressure sensors including ultra-thin and flexible printed circuit sensors in comparison with untreated control samp

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8

Sellamuthu, Hariraj. "Is the Work Pressure Accelerating Blood Pressure? A Cross-Sectional Study in a Pressure Cooker Manufacturing Industry." Journal of Advanced Research in Medicine 10, no. 04 (2023): 14–17. http://dx.doi.org/10.24321/2349.7181.202310.

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9

Sergey, Ivakhnenko, Lysakovskyi Valentyn, Savitsky Oleksandr та Burchenia Andrii. "Determining high quasihydrostatic pressure up to 7 GPa at a temperature to 1,400 °С using resistive sensors". Eastern-European Journal of Enterprise Technologies 3, № 5(99) (2019): 13–20. https://doi.org/10.15587/1729-4061.2019.168712.

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A differential method for measuring high quasi‒hydrostatic pressures for six‒punch pressing installations has been constructed by building a load-carrying characteristic р=f(Q), where p is the value for pressure in a quasi‒hydrostatic cell of high‒pressure, Q is the force of the press. Pressure in the cell is measured by using the measurement of a temperature difference between the polymorphic transformations into Co(α→β) and Fe(α→γ), melting of Cu and Ag; the measurements are performed by resistometry. The initial data used were the lines of polymorphic transi

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10

M.B, Pushpa, and Varsha Vijay AKhade A.V. "Study of Intraocular Pressure (IOP) Changes in Relation Blood Pressure." International Physiology 5, no. 2 (2017): 107–9. http://dx.doi.org/10.21088/ip.2347.1506.5217.12.

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11

Chunyu, T., P. Xiujun, N. Li, L. Qin, and Z. Tian. "The Correlation between Intracranial Pressure and Intraocular Pressure after Brain Surgery." International Journal of Ophthalmology & Eye Science 2, no. 5 (2014): 54–58. https://doi.org/10.19070/2332- 290X-140008.

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Objective: This study was to explore whether the intracranial pressure (ICP) changes and intraocular pressure (IOP) changes are synchronized after brain surgery. We also want to see whether measurement of IOP could be used to monitor ICP. Materials and methods: We evaluated the correlation between intracranial pressure and intraocular pressure in 15 patients with meningioma admitted to our hospital. All patients required the intracranial pressure monitoring on clinical grounds. Intraocular pressures were measured by portable non-contact tonometer. We simultaneous recorded the in

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Pickering, L. A., and G. J. lndelicato. "Abnormal Formation Pressure: A Review." Mountain Geologist 22, no. 2 (1985): 78–89. http://dx.doi.org/10.31582/rmag.mg.22.2.78.

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Abnormal formation pressure is defined as any pressure that deviates from the normal hydrostatic gradient. In order for these pressures to form and be preserved, a near-seal is required. The seal is not necessarily impermeable but may be a low permeability formation, such as shale, or a fault-related barrier. The possible causes of abnormal formation pressure are: 1) compaction of sediments, 2) tectonic activities, 3) temperature changes, 4) osmosis, 5) diagenesis, 6) methane generation, and 7) buoyancy. Temperature changes due to decay, diagenesis, and changes in burial depth of the formation

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Fike, C. D., and S. J. Lai-Fook. "Effect of airway and left atrial pressures on microcirculation of newborn lungs." Journal of Applied Physiology 69, no. 3 (1990): 1063–72. http://dx.doi.org/10.1152/jappl.1990.69.3.1063.

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To determine the effect of lung inflation and left atrial pressure on the hydrostatic pressure gradient for fluid flux across 20- to 60-microns-diam venules, we isolated and perfused the lungs from newborn rabbits, 7-14 days old. We used the micropuncture technique to measure venular pressures in some lungs and perivenular interstitial pressures in other lungs. For all lungs, we first measured venular or interstitial pressures at a constant airway pressure of 5 or 15 cmH2O with left atrial pressure greater than airway pressure (zone 3). For most lungs, we continued to measure venular or inters

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Rajkumar, R. Vinodh. "DIASTOLIC BLOOD PRESSURE OR ACTUALLY IT IS BASELINE SYSTOLIC BLOOD PRESSURE?" International Journal of Physiotherapy and Research 3, no. 4 (2015): 1126–32. http://dx.doi.org/10.16965/ijpr.2015.155.

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15

Mahler, C., P. Kloosterziel, J. Eshuis, G. Weverling, W. Bemelman, and M. Boermeester. "CORRELATION BETWEEN BLADDER PRESSURE AND INTRA-ABDOMINAL PRESSURE IN RELATION TO RESPIRATORY PRESSURES." Shock 21, Supplement (2004): 110. http://dx.doi.org/10.1097/00024382-200403001-00437.

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16

Sreenidi, Rangadhamaiah. "Comparison of Conventional Central Venous Pressure with Peripheral Venous Pressure and External Jugular Venous Pressure in Patients with Sepsis." Indian Journal of Anesthesia and Analgesia 7, no. 4 (2020): 979–85. http://dx.doi.org/10.21088/ijaa.2349.8471.7420.19.

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17

Godbey, P. S., J. A. Graham, R. G. Presson, W. W. Wagner, and T. C. Lloyd. "Effect of capillary pressure and lung distension on capillary recruitment." Journal of Applied Physiology 79, no. 4 (1995): 1142–47. http://dx.doi.org/10.1152/jappl.1995.79.4.1142.

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To investigate the effect of capillary pressure and alveolar distension on capillary recruitment, we used video-microscopy to quantify capillary recruitment in individual subpleural alveolar walls. Canine lobes were perfused with autologous blood either while inflated by positive airway pressure or while inflated by negative intrapleural pressure in the intact thorax with airway pressure remaining atmospheric. Low flow rates minimized the arteriovenous pressure gradient (< 5 mmHg), permitting capillary pressure estimation by averaging these pressures. Capillary pressure was varied stepwise

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18

Sanders, J. S., and D. W. Ferguson. "Diastolic pressure determines autonomic responses to pressure perturbation in humans." Journal of Applied Physiology 66, no. 2 (1989): 800–807. http://dx.doi.org/10.1152/jappl.1989.66.2.800.

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Arterial baroreceptors reflexly regulate sympathetic and heart rate responses to alteration of blood pressure. The primary mechanical determinant of arterial baroreceptor activity in humans remains unclear. We examined the influence of systolic, diastolic, pulse, and mean arterial pressures on efferent muscle sympathetic nerve activity (MSNA, microneurography) and heart rate responses during perturbation of arterial pressure in 10 normal human subjects [age 25 +/- 2 (SE) yr]. We directly measured arterial pressure, heart rate, and MSNA during intravenous vasodilator infusion (nitroprusside, 6

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19

John, Ajesh. "Pore-pressure prediction challenges in chemical compaction regimes: An alternative VP/VS-based approach." Interpretation 4, no. 4 (2016): T443—T454. http://dx.doi.org/10.1190/int-2015-0106.1.

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Understanding pressure mechanisms and their role in porosity-effective stress relationship is crucial in pore-pressure prediction estimation, particularly in complex geologic and high-temperature regimes. Overpressures are commonly associated with undercompaction and/or unloading mechanisms; those associated with undercompaction generally possess a direct relationship between effective stress and porosity, whereas those associated with unloading do not provide such direct indications from porosity trends. The type of associated unloading mechanism can be correlated when the effective stress an

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Fike, C. D., S. J. Lai-Fook, and R. D. Bland. "Alveolar liquid pressures in newborn and adult rabbit lungs." Journal of Applied Physiology 64, no. 4 (1988): 1629–35. http://dx.doi.org/10.1152/jappl.1988.64.4.1629.

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To study the effects of lung maturation and inflation on alveolar liquid pressures, we isolated lungs from adult and newborn rabbit pups (1-11 days old). We used the micropuncture technique to measure alveolar liquid pressure at several transpulmonary pressures on lung deflation. Alveolar liquid pressure was greater than pleural pressure but less than airway pressure at all transpulmonary pressures. Alveolar liquid pressure decreased further below airway pressure with lung inflation. At high transpulmonary pressure, alveolar liquid pressure was less in newborn than in adult lungs. To study the

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21

Rufus, Rajkumar Peterson, and Sandeep G. "Cold Pressor Test as A Predictor of Hypertension in Normotensive Medical Students." International Journal of Pharmaceutical and Clinical Research 15, no. 7 (2023): 787–89. https://doi.org/10.5281/zenodo.11660087.

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<strong>Introduction:</strong> Early diagnosis of hypertension risk may enable an individual to live a healthier lifestyle. Subjects with hypertension predisposing variables have a higher and longer reaction to blood pressure after stress. The current study was carried out to assess cardiovascular response, such as blood pressure and heart rate changes during a cold presser test, as a prospective future risk factor for hypertension in normotensive Medical students. <strong>Materials and Methods:</strong> Normotensive, non-smoking healthy 60 first MBBS students of either sex of M

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22

Salem, M. Ramez, Keith W. Bruninga, Jyothi Dodlapatii, and Ninos J. Joseph. "Metoclopramide Does Not Attenuate Cricoid Pressure–induced Relaxation of the Lower Esophageal Sphincter in Awake Volunteers." Anesthesiology 109, no. 5 (2008): 806–10. http://dx.doi.org/10.1097/aln.0b013e31818a37dc.

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Background The authors examined the influence of metoclopramide on cricoid pressure-induced relaxation of the lower esophageal sphincter (LES) in awake human volunteers. Methods With local institutional review board approval, measurements of LES and intragastric pressures were made in 10 consenting volunteers before cricoid pressure application, during 15 s of cricoid pressure application, and after release of cricoid pressure. The measurements were repeated after 0.15 mg/kg intravenous metoclopramide. Cricoid pressure was applied by one investigator trained to consistently apply a force of 44

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Popivanov, Georgi, Ivan Inkov, Georgi Kovachev, et al. "NEGATIVE PRESSURE WOUND THERAPY IN WARTIME WOUNDS - CASE SERIES AND REVIEW OF THE LITERATURE." International Journal of Surgery and Medicine 4, no. 3 (2018): 138. http://dx.doi.org/10.5455/ijsm.negative-pressure-wound-therapy.

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Mendelowitz, D., and A. M. Scher. "Pulsatile pressure can prevent rapid baroreflex resetting." American Journal of Physiology-Heart and Circulatory Physiology 258, no. 1 (1990): H92—H100. http://dx.doi.org/10.1152/ajpheart.1990.258.1.h92.

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In a previous study [Am. J. Physiol. 255 (Heart Circ. Physiol. 24): H673-H678, 1988] we demonstrated that baroreflex responses decay (reset) to increased static sinus pressures, but with increased pulsatile pressure, responses are maintained. To determine more conclusively whether pulsatile pressure prevents rapid baroreflex resetting in this study we examined resetting as shifts of the baroreflex (sinus pressure-arterial pressure) curve. In seven anesthesized rabbits the left sinus was vascularly isolated and conditioned for 5 min to static or pulsatile pressures of 60, 100, or 140 mmHg mean

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VERSI, E., LINDA CARDOZO, and D. J. COOPER. "Urethral Pressures: Analysis of Transmission Pressure Ratios." British Journal of Urology 68, no. 3 (1991): 266–70. http://dx.doi.org/10.1111/j.1464-410x.1991.tb15320.x.

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Dunstan, D. J., N. W. A. Van Uden, and G. J. Ackland. "High Pressure Instrumentation: Low and Negative Pressures." High Pressure Research 22, no. 3-4 (2002): 773–78. http://dx.doi.org/10.1080/08957950212441.

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Ravaji Parab, Namita, and Shilpa Ajay Parab. "Immediate Effect of Laughter Yoga on Blood Pressure in Elevated Blood Pressure." International Journal of Science and Research (IJSR) 11, no. 10 (2022): 460–64. http://dx.doi.org/10.21275/sr221010105933.

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Wirawan, Hendra, Toetik Koesbardiati, and Sutinah. "Institutional and Social Pressure in Violating the Police Code of Ethics." Jurnal Ilmu Kepolisian 18, no. 3 (2024): 331–52. https://doi.org/10.35879/jik.v18i3.470.

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Institutional and social pressures on police officers often lead to violations of the code of ethics. This study aims to determine how institutional and social pressures can encourage ethical violations committed by police officers. This research is a qualitative study based on in-depth interviews with seven informants to explore and precisely describe the social phenomena that occur. The theory of anomie and the new institutional theory serve as the analytical tools in this research to produce unique and comprehensive findings. The research findings affirm that there are two types of police i

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Ihsan Ali, Safia, David Patton, Kimberley A. Myers, and Julio Garcia. "Repaired Tetralogy of Fallot Pressure Assessment: Insights from 4D-Flow Pressure Mapping." Fluids 8, no. 7 (2023): 196. http://dx.doi.org/10.3390/fluids8070196.

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Tetralogy of Fallot (TOF) is the most prevalent cyanotic congenital heart defect (CHD) that alters normal blood flow through the heart and accounts for 10% of all CHD. Pulmonary stenosis and regurgitation are common in adults who have undergone TOF repair (rTOF) and can impact the load on the right ventricle, blood flow pressure, and pulmonary hemodynamics. Pressure mapping, obtained through 4D-flow magnetic resonance imaging (4D-flow MRI), has been applied to identify abnormal heart hemodynamics in CHD. Hence, the aim of this research was to compare pressure drop and relative pressures betwee

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VAN ROEKEL, H. E., and A. J. THURSTON. "Tourniquet Pressure: The Effect of Limb Circumference and Systolic Blood Pressure." Journal of Hand Surgery 10, no. 2 (1985): 142–44. http://dx.doi.org/10.1016/0266-7681_85_90002-6.

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Complications attributable to direct pressure may result from the use of pneumatic tourniquets during surgical procedures. Traditional estimates have determined the pressures employed rather than the minimal pressure necessary to produce a bloodless field. To determine this pressure, pre-operative and post-operative systolic blood pressures and the tourniquet pressure at which capillary bleeding occurred were measured in a group of patients undergoing elective surgery of the upper and lower limbs. From these results two equations were derived, one for each of the upper and lower limbs, which g

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Gnida, Anna, and Dagmara Witecy. "PRELIMINARY STUDIES ON THE INFLUENCE OF NEGATIVE PRESSURE ON ACTIVATED SLUDGE FLOCS." Zeszyty Naukowe Uniwersytetu Zielonogórskiego / Inżynieria Środowiska 170, no. 50 (2018): 51–60. http://dx.doi.org/10.5604/01.3001.0012.7462.

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A sludge from municipal wastewater plant operated for biological contaminant removal was exposed to three different negative pressures (-200, -500 and -800 hPa) for three different duration times (30 second, 1 and 2 minutes). Sludge volume index, shear sensitivity of the sludge and activated sludge floc characteristic was the object of the study before and after negative pressure treatment. After the treatment the sludge settled better independently on the pressure value and duration time. The shear sensitivity changed the most when the pressure exposure of -800 hPa was 1 minute and longer. Th

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Attard, J., S. V. S. Rithalia, and J. Kulkarni. "Pressure relief characteristics in alternating pressure air cushions." Prosthetics and Orthotics International 21, no. 3 (1997): 229–33. http://dx.doi.org/10.3109/03093649709164561.

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In this study a computerised system was used which continuously measured air pressure, interface pressure and pressure-time cycle characteristics of an alternating pressure air cushion (APAC), and calculated the time the interface pressure remained below three chosen thresholds of 20,40 and 60mm Hg. Ten healthy volunteers were used to evaluate the pressure relieving characteristics of four APACs. Results indicated significant differences between products when the threshold periods were analysed, showing some devices were not capable of relieving interface pressures below 20mm Hg. Though deflat

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Vlachopoulos, Charalambos, and Michael O’Rourke. "Diastolic pressure, systolic pressure, or pulse pressure?" Current Hypertension Reports 2, no. 3 (2000): 271–79. http://dx.doi.org/10.1007/s11906-000-0010-6.

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Bazhin, N. M., and V. N. Parmon. "Hydroosmotic pressure." Доклады Академии наук 484, no. 1 (2019): 52–55. http://dx.doi.org/10.31857/s0869-5652484152-55.

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This work proposes the term “hydroosmotic pressure” to define hydrostatic pressure emerging from an osmotic process during solvent diffusion through membranes. The usage of this term potentially clears the ambiguity of the term “osmotic pressure,” referring to the concentration of dissolved solids in a solution regardless of the existence of hydrostatic pressure. Hydroosmotic pressure is the difference between hydrostatic pressures on either side of the membrane; thus, the term “hydroosmotic pressure” allows for the most correct definition of many processes associated with osmotic phenomena.

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Aldea, G. S., H. Mori, W. K. Husseini, R. E. Austin, and J. I. E. Hoffman. "Effects of increased pressure inside or outside ventricles on total and regional myocardial blood flow." American Journal of Physiology-Heart and Circulatory Physiology 279, no. 6 (2000): H2927—H2938. http://dx.doi.org/10.1152/ajpheart.2000.279.6.h2927.

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Increasing pressures to 30 mmHg in right (RV) and left (LV) ventricles and surrounding heart (SH) in isolated, arrested, maximally vasodilated, blood-perfused dog hearts shifted pressure-flow (PF) curves rightward and increased zero flow pressure (Pzf) by an amount equal to the RV applied pressure, SH applied pressure, or two-thirds of the LV applied pressure. There were comparable increases in coronary venous pressures. Increasing LV or SH pressures decreased coronary blood flows, especially in the subendocardium. Decreases in driving pressure decreased flows in all layers, but even with driv

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Bono, F., D. Salvino, T. Tallarico, et al. "Abnormal pressure waves in headache sufferers with bilateral transverse sinus stenosis." Cephalalgia 30, no. 12 (2010): 1419–25. http://dx.doi.org/10.1177/0333102410370877.

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Introduction: Bilateral transverse sinus stenosis (BTSS) has been reported to be associated with idiopathic intracranial hypertension without papilloedema in headache sufferers. Subjects and methods: To test the accuracy of short-term cerebrospinal fluid (CSF) pressure monitoring through a lumbar needle for detection of elevated intracranial pressure in headache sufferers with BTSS, we prospectively performed lumbar puncture in order to measure lumbar CSF opening pressures and to monitor, for 1 h, the CSF pressure in 48 consecutive headache sufferers with BTSS and in 50 consecutive headache su

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Mistik, Selcuk, Kevser Goktas, Demet Unalan, Abdurrahman Oguzhan, and Bulent Tokgöz. "Normal Variations in Blood Pressure in Ambulatory Blood Pressure Measurements." Eurasian Journal of Family Medicine 10, no. 1 (2021): 1–6. http://dx.doi.org/10.33880/ejfm.2021100101.

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Aim: Hypertension is very common in primary care patients. The diagnosis of hypertension is made by office measurements and home blood pressure measurements. The aim of this study was to define the normal variation levels of blood pressure in individuals in primary care by using ambulatory blood pressure measurement. Methods: This study was performed in primary care. Individuals who had no hypertension history were included in the study. Subjects were evaluated by using three office measurements, seven days home blood pressure measurements and 24 hours ambulatory blood pressure measurement. Th

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KOCA, Uğur. "Airway Pressure Release Ventilation." Turkiye Klinikleri Journal of Anesthesiology Reanimation 16, no. 1 (2018): 14–17. http://dx.doi.org/10.5336/anesthe.2017-57257.

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Shavkat o‘g‘li, Fayzullayev Jahongir. "BLOOD PRESSURE MEDICINAL PLANTS." International Journal of Medical Science and Public Health Research 03, no. 04 (2022): 5–8. http://dx.doi.org/10.37547/ijmsphr/volume03issue04-02.

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In this article all about medicinal herbs are widely used in folk medicine due to their blood pressure effectiveness. It is also widely used in the pharmaceutical industry to obtain extracts from them.

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KOSIYUK, M., А. KOSIYUK, and V. KRAVCHUK. "MODULAR VOLUME PRESSURE MACHINE." Herald of Khmelnytskyi National University. Technical sciences 285, no. 3 (2020): 105–8. https://doi.org/10.31891/2307-5732-2020-285-3-17.

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Currently widely used volumetric displacement machines (MOV), which include thermal machines (internal combustion, with external heat supply, steam); hydraulic and pneumatic engines; pumps; compressors, etc. They contain at least one working body mounted in a housing with the possibility of translational (oscillating) motion, and a direction converter capable of receiving or rotating the input shaft with its transformation into translational (oscillating) motion of the working body or translational (oscillating) motion of the working body with transformation its in the rotational motion of the

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Davis, M. J. "Microvascular control of capillary pressure during increases in local arterial and venous pressure." American Journal of Physiology-Heart and Circulatory Physiology 254, no. 4 (1988): H772—H784. http://dx.doi.org/10.1152/ajpheart.1988.254.4.h772.

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The extent to which capillary hydrostatic pressure might be protected from increases in local arterial and venous pressure was examined in the wing microcirculation of unanesthetized pallid bats (Antrozous pallidus). Arterial inflow and venous outflow pressures to the wing were elevated using a box technique to increase pressure around the body of the animal in steps of 12 mmHg between 0 and +60 mmHg for 3-min periods. During this time, hydrostatic pressure, diameter, and red cell velocity in single microvessels were continuously recorded. All branching orders of arterioles constricted signifi

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Lowrie, Allen, and Susan Moffett. "Pressure Compartments, Existent and Suggested, along the Louisiana Continental Margin." Energy Exploration & Exploitation 16, no. 4 (1998): 345–54. http://dx.doi.org/10.1177/014459879801600404.

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Pressure compartments are the result of lithology, the ability to contain/expell fluids, and stresses from the dynamics of whatever tectonics operate in the area. In the northern Gulf of Mexico, a normal pressured unit overlies a geopressured or over-pressured compartment that both rest above the salt. Directly northward of the Sigsbee Escarpment, there is a relatively thin, low-velocity zone known locally as a “gumbo zone”. Here two other pressure compartments are proposed. The origin of them is two-fold. First, initial sedimentation consists of pelagic clay draped over oceanic and transition

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Karki, Sanjit, and Madhur Dev Bhattarai. "Correlation of Central with Jugular and Upper-limb Venous Pressure Measurements." Journal of Nepal Health Research Council 18, no. 1 (2020): 35–40. http://dx.doi.org/10.33314/jnhrc.v18i1.2406.

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Background: Correlation data of different external reference points and methods used to measure venous pressures are scarce in the literature. We correlated central venous pressure with jugular venous pressure measured from sternal angle and with jugular and upper-limb venous pressures from zero level corresponding to mid-right-atrium level. Methods: A hospital-based observational study in the medical and surgical intensive care units was conducted for period of one year.” Central venous pressure was measured from right fourth intercostal space in mid-axillary line and jugular venous pressure

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Kimura, Tatsuto, Masahiro Masuko, Naoki Fujii, Hideki Kaida, and Naoto Kihara. "NUMERICAL AND HYDRAULIC EXPERIMENTS ON BORE PRESSURE DUE TO TSUNAMI." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 18. http://dx.doi.org/10.9753/icce.v36.currents.18.

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The 2011 Tohoku earthquake tsunami struck a wide area of the northeastern coast of Japan, and many coastal structures and buildings were damaged by the tsunami. Most of the buildings were damaged by the tsunami wave pressure. After the tsunami, characteristics of tsunami waive pressures have been investigated by many researcher, and are being clarified. As shown in previous studies, there are three regimes charactering the vertical pressure profiles. The first one is the impulsive pressure, which is observed just after the tsunami-bore impacted structures. In this regime, strong hydrodynamic p

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Barbenel, J. C. "Pressure management." Prosthetics and Orthotics International 15, no. 3 (1991): 225–31. http://dx.doi.org/10.3109/03093649109164292.

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The prevention or minimisation of the occurrence of pressure sores is an important consideration in the rehabilitation of physically disabled people, especially for the wheelchair user with a spinal cord injury. Although there is little definitive information on the cause of pressure sores, several intrinsic and extrinsic factors have been highlighted. Probably the most significant causative factor is the application of force to the skin surface. The relationship between the magnitude of pressure and its duration; the temperature and humidity at the interface; and the physiological effects tha

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House, S. D., and P. C. Johnson. "Microvascular pressure in venules of skeletal muscle during arterial pressure reduction." American Journal of Physiology-Heart and Circulatory Physiology 250, no. 5 (1986): H838—H845. http://dx.doi.org/10.1152/ajpheart.1986.250.5.h838.

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It has been suggested from whole organ studies that the viscosity of blood in skeletal muscle venules varies inversely with flow over physiological flow ranges. If this is the case, the hydrostatic pressure gradient in venules should change less than flow as flow is altered. To test this hypothesis, pressure in venules of cat sartorius muscle was measured during stepwise arterial pressure reduction to 20 mmHg. Large vein pressure remained constant at about 5 mmHg. Average pressures in the large venules (40–185 microns) ranged from 13.6 to 10.0 mmHg. The difference between pressure in these ven

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Glucksberg, M. R., and J. Bhattacharya. "Effect of alveolar and pleural pressures on interstitial pressures in isolated dog lungs." Journal of Applied Physiology 70, no. 2 (1991): 914–18. http://dx.doi.org/10.1152/jappl.1991.70.2.914.

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We report the first direct measurements of perialveolar interstitial pressures in lungs inflated with negative pleural pressure. In eight experiments, we varied surrounding (pleural) pressure in a dog lung lobe to maintain constant inflation with either positive alveolar and ambient atmospheric pleural pressures (positive inflation) or ambient atmospheric alveolar and negative pleural pressures (negative inflation). Throughout, vascular pressure was approximately 4 cmH2O above pleural pressure. By the micropuncture servo-null technique we recorded interstitial pressures at alveolar junctions (

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Tilmont, Antoine, Benjamin Coiffard, Takeshi Yoshida, et al. "Oesophageal pressure as a surrogate of pleural pressure in mechanically ventilated patients." ERJ Open Research 7, no. 1 (2021): 00646–2020. http://dx.doi.org/10.1183/23120541.00646-2020.

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BackgroundOesophageal pressure (Poes) is used to approximate pleural pressure (Ppl) and therefore to estimate transpulmonary pressure (PL). We aimed to compare oesophageal and regional pleural pressures and to calculate transpulmonary pressures in a prospective physiological study on lung transplant recipients during their stay in the intensive care unit of a tertiary university hospital.MethodsLung transplant recipients receiving invasive mechanical ventilation and monitored by oesophageal manometry and dependent and nondependent pleural catheters were investigated during the post-operative p

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Maric, Filip, Margherita Poto, and Giuliana Panieri. "Under pressure." Septentrio Educational, no. 1 (April 28, 2023): 78–80. http://dx.doi.org/10.7557/8.7056.

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   Focus: To understand and feel how water pressure changes with depth. Learning objectives: In this activity, pupils will recognize the relationship between water depth and pressure. Pupils will be able to reflect on how lifeforms in the deep sea might be affected by the high water pressures in their ecosystems. Key words: Depth, weight, pressure.  

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Incognito, Anthony V., Milena Samora, Andrew D. Shepherd, et al. "Sympathetic arterial baroreflex hysteresis in humans: different patterns during low- and high-pressure levels." American Journal of Physiology-Heart and Circulatory Physiology 319, no. 4 (2020): H787—H792. http://dx.doi.org/10.1152/ajpheart.00505.2020.

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The findings show that the arterial baroreflex processes diastolic pressure dependent on the direction of pressure change from the previous beat, yielding two distinct baroreflex response curves to falling and rising pressure. Overall, the falling pressure curve is rightward shifted and more sensitive. The rightward shift caused a hysteresis reversal at hypotensive pressures as the falling pressure saturation plateau of the sigmoid response curve occurred at higher pressures than the rising pressure curve.

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