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Dissertations / Theses on the topic 'AGN activity'

Author: Grafiati

Published: 26 June 2021

Last updated: 29 July 2025

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1

Blank, Marvin, and Wolfgang J. Duschl. "Viscous time lags between starburst and AGN activity." OXFORD UNIV PRESS, 2016. http://hdl.handle.net/10150/621734.

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There is strong observational evidence indicating a time lag of order of some 100 Myr between the onset of starburst and AGN activity in galaxies. Dynamical time lags have been invoked to explain this. We extend this approach by introducing a viscous time lag the gas additionally needs to flow through the AGN's accretion disc before it reaches the central black hole. Our calculations reproduce the observed time lags and are in accordance with the observed correlation between black hole mass and stellar velocity dispersion.

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2

Molnár, Dániel Csaba. "Tracing star formation and AGN activity at radio frequencies." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/79453/.

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My research has focused on locating and measuring star formation and AGN activity in different environments with interferometric and single-dish radio observations. As my first PhD project, I studied the complex interaction between an intermediate redshift (z 0.3) starburst galaxy and a nearby ( 7 kpc separation) QSO using sub-arcsecond VLA observations. I found new evidence for jet-induced star formation activity in the companion galaxy, making the system a strong candidate for this rare, and potentially important process in the early Universe. In my second paper, I investigated the infrared-

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3

Laporte, Nicolas, Kimihiko Nakajima, Richard S. Ellis, et al. "A Spectroscopic Search for AGN Activity in the Reionization Era." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/626417.

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The ubiquity of Lyman alpha (Ly alpha) emission in a sample of four bright [O III]- strong star-forming galaxies with redshifts above seven has led to the suggestion that such luminous sources represent a distinct population compared with their fainter, more numerous counterparts. The presence of Lya emission within the reionization era could indicate that these sources created early ionized bubbles due to their unusually strong radiation, possibly because of the presence of active galactic nuclei. To test this hypothesis, we secured long integration spectra with XSHOOTER on the VLT for three

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4

Omma, Henrik Nilsen. "Jet-powered cooling cores : reversing cooling flows through AGN activity." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419330.

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5

Salvestrini, Francesco <1991&gt. "The impact of AGN activity on the host-galaxy ISM." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9830/3/salvestrini_phd_thesis.pdf.

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In this Thesis I investigate how, and to which extent, Active Galactic Nuclei (AGN) activity affects the properties of the host-galaxy interstellar medium (ISM). AGN are thought to regulate the host star formation (SF) by injecting large amount of energy in the circumnuclear region, either suppressing or enhancing the formation of new stars. To understand the interplay between AGN and SF multi-wavelength approach is needed, which allows us to trace the different gas components. In the first part of the Thesis, I present the result of a systematic analysis of the X-ray properties of a sample o

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6

Kolwa, Sthabile. "The effects of environment on radio-loud AGN activity in Stripe 82." University of the Western Cape, 2016. http://hdl.handle.net/11394/5318.

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>Magister Scientiae - MSc<br>We investigate the link between environment and radiative accretion efficiency using a sample of 8946 radio-loud AGN detected at 1 − 2 GHz in the SDSS Stripe 82 region. We quantify their environments using the surface-density parameter, ƩN, which measures galaxy density based on distances to Nth nearest neighbours. Comparing Ʃ2 and Ʃ5 between AGN and control galaxies, we obtain relative densities that quantify the degree of galaxy clustering around each AGN. Using this, we examine the relation between density and the HERG-LERG dichotomy (accretion-modes) classified

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7

Ma, Jingzhe, Anthony H. Gonzalez, J. D. Vieira, et al. "SPT0346-52: NEGLIGIBLE AGN ACTIVITY IN A COMPACT, HYPER-STARBURST GALAXY AT z = 5.7." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/622449.

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We present Chandra ACIS-S and Australia Telescope Compact Array (ATCA) radio continuum observations of the strongly lensed dusty, star-forming galaxy SPT-S J034640-5204.9 (hereafter SPT0346-52) at z = 5.656. This galaxy has also been observed with ALMA, HST, Spitzer, Herschel, Atacama Pathfinder EXperiment, and the Very Large Telescope. Previous observations indicate that if the infrared (IR) emission is driven by star formation, then the inferred lensing-corrected star formation rate (SFR) (similar to 4500 M-circle dot yr(-1)) and SFR surface density Sigma(SFR) (similar to 2000 M-circle dot y

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8

Noirot, Gaël. "The CARLA-Hubble survey : spectroscopic confirmation and galaxy stellar activity of rich structures at 1.4 < z < 2.8." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC153.

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Les études détaillées d'amas de galaxies confirmés à grands redshifts sont peu nombreuses. L’objectif de cette Thèse est d’établir le premier catalogue d'amas confirmés spectroscopiquement à grand redshift et, pour la première fois à ces redshifts, d’étudier de manière statistique les propriétés des galaxies membres des amas. Dans cette Thèse, nous caractérisons et étudions 20 candidats amas à redshifts 1.4 < z < 2.8 parmi les candidats les plus prometteurs de l’échantillon CARLA. Nous réduisons et analysons des données spectroscopiques grism sans fente et imagerie proche-infrarouge des

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9

Alberts, Stacey, Alexandra Pope, Mark Brodwin, et al. "STAR FORMATION AND AGN ACTIVITY IN GALAXY CLUSTERS FROM z = 1–2: A MULTI-WAVELENGTH ANALYSIS FEATURING HERSCHEL /PACS." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/621395.

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We present a detailed, multi-wavelength study of star formation (SF) and active galactic nucleus (AGN) activity in 11 near-infrared (IR) selected, spectroscopically confirmed massive (greater than or similar to 10(14)M(circle dot)) galaxy clusters at 1 < z < 1.75. Using new deep Herschel/PACS imaging, we characterize the optical to far-IR spectral energy distributions (SEDs) for IR-luminous cluster galaxies, finding that they can, on average, be well described by field galaxy templates. Identification and decomposition of AGNs through SED fittings allows us to include the contribution to clust

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10

Zaheer, Farah. "Adaptations in motor unit activity with age and physical activity." Thesis, Boston University, 2012. https://hdl.handle.net/2144/12693.

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Thesis (Sc.D.)--Boston University PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>The hypothesis that age-related alterations to the morphological properties of a motor unit (MU) are accompanied by modifications in their control properties has been supported by data that compared young (24-3

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11

Mata, Joe I. (Joe Israel). "The Effects of Age-Graded Associations on the Political Activism of the Elderly." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc501086/.

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Although the graying of the American society has been well documented, the question as to whether the elderly populace will indeed become a political factor has yet to be determined. Some studies indicate that the elderly will soon develop the consensus needed for political action; other studies counter that the elderly will never be a viable political factor. Among the determinants listed as influencing the political participation equation are standard socioeconomic variables (e.g., race, social status, education, and income). These factors have been studied extensively (Campbell 1960; Key 19

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12

PACE, GIANCARLO. "AGE, METALLICITY AND ACTIVITY IN SOLAR-TYPE STARS." Doctoral thesis, Università degli studi di Trieste, 2005. http://thesis2.sba.units.it/store/handle/item/13164.

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13

Nanni, Valentina <1984&gt. "Antimicrobial activity of peach and grapevine defensins." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4434/1/PhD_thesis_Nanni_Valentina.pdf.

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Antimicrobial peptides (AMPs) are an important component of the innate immune system of the plants. Plant defensins are a large family of antimicrobial peptides with several interesting features, such as small dimension, high stability and broad spectrum of action. The discovery of new molecules and the study of their mechanism of action allow to consider them attractive for biotechnological applications. In this PhD thesis a defensin from Prunus persica (PpDFN1) and four novel DEFensin Like (DEFL) peptides from Vitis vinifera have been studied. In order to characterize the antimicrobial acti

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Nanni, Valentina <1984&gt. "Antimicrobial activity of peach and grapevine defensins." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4434/.

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Antimicrobial peptides (AMPs) are an important component of the innate immune system of the plants. Plant defensins are a large family of antimicrobial peptides with several interesting features, such as small dimension, high stability and broad spectrum of action. The discovery of new molecules and the study of their mechanism of action allow to consider them attractive for biotechnological applications. In this PhD thesis a defensin from Prunus persica (PpDFN1) and four novel DEFensin Like (DEFL) peptides from Vitis vinifera have been studied. In order to characterize the antimicrobial acti

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15

Goff, Elizabeth A. "The effect of age on cardiovascular activity during sleep." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501414.

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16

Meyer, Helen M. "AGE OF MENARCHE, INITIAL SEXUAL ACTIVITY AND FAMILY COMPOSITION." University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin960907404.

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17

Johnson, Lori Ann. "The role of activity level for memory in the elderly." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/1554.

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18

DHAINAUT, FRANCOISE. "Activite physique et sportive et sujet age." Lille 2, 1990. http://www.theses.fr/1990LIL2M122.

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19

Bargossi, Eleonora <1988&gt. "Characterization of Tyrosine Decarboxylase (tyrDC) Activity in Genus Enterococcus." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7460/1/Bargossi_Eleonora_Tesi.pdf.

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The presence of biogenic amines in foods and the risks associated to their consumption (especially considered the increase of susceptible consumers) are well known since long time, but systematic studies about their production have been carried out only in the last decades. Fermented foods, in particular, are often characterized by the presence of relevant concentrations of biogenic amines due to the activity of the microbiota responsible for the secondary fermentation. Within this microbiota, enterococci play a controversial role, in fact they contribute to the definition of typical organole

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20

BLANC, JOUD NADINE. "Sante, sport et troisieme age." Aix-Marseille 2, 1989. http://www.theses.fr/1989AIX20299.

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21

Loichinger, Elke, and Alexia Prskawetz. "Changes in economic activity: The role of age and education." Max Planck Institute for Demographic Research, 2017. http://dx.doi.org/10.4054/DemRes.2017.36.40.

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Background: Between 2000 and 2010, the labor force participation (LFP) of European men stayed mostly constant, whereas the participation of women continued to increase. Participation rates of people close to normal retirement ages rose almost universally. At the same time, the education composition shifted toward higher levels of educational attainment and education-specific differentials in economic activity persisted. Objective: The aim of the paper is to understand the extent to which developments of LFP rates between 2000 and 2010 in selected European countries can be explained by age-s

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22

Randel, Patricia A. "Physical activity around the age of 40 and postmenopausal osteoporosis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/MQ49428.pdf.

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23

Crichton, Angus Julian Dewar. "Popular attitudes to judical activity in the age of Aristophanes." Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285155.

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24

Bell, L. Andrew. "Age Dependent Spatial Characteristics of Epileptiform Activity in Malformed Cortex." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2614.

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Developmental cortical malformations are a major cause of intractable seizures. Determining the location and timing of susceptibility for epileptiform activity is critical to identifying what mechanisms contribute to epileptogenesis in any model. Using the freeze lesion rat model of polymicrogyria, we have identified, in lesioned cortex, these two aspects of epileptogenesis. Previous studies have demonstrated that epileptiform activity cannot be evoked prior to postnatal day (P) 12, but the malformed cortex is more susceptible to seizures as early as P10. An increase in excitatory afferents

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25

Rudberg, Andrea, and Linnéa Granström. "Associations between gestational age, physical activity and cognitive functioning among children in early school age." Thesis, Umeå universitet, Institutionen för psykologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-121874.

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The aim of this study was to examine differences and associations concerning physical activity and cognitive functioning among children born preterm in comparison to those born full term. The sample consisted of 130 children at early school age (mean = 7.8 years), born at a gestational age (GA) of 23 - 42 weeks, and categorized into three groups; children born full term (GA 39 - 42), moderately preterm (GA 34 – 36) and very preterm (GA 23 - 33). Physical activities were perceived from parents’ ratings by use of the Child behaviour checklist (CBCL), and cognitive functioning by WISC-IV. Results

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26

Roussel, Pascale. "Activite physique et statut cognitif du sujet age." Lille 2, 1992. http://www.theses.fr/1992LIL2M304.

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27

Roberts, Christine. "Analysis of different types of physical activity and functional independence in old age." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=237638.

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Physical activity is associated with greater independence in old age. While most research has focused on the frequency, intensity and time spent in activity, inconsistent findings have emerged, possibly due to differences across different types of physical activity. Physical activities differ in terms of their non-metabolic, mental, physical and social demands, however, to date, the effects of these demands on functional independence are unexplored. The present thesis aimed to investigate the effect of different types of physical activity on functional independence in old age. A systematic rev

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Ostapchuk, V. G. "Age characteristics and inflammation activity degree of duodenal ulcer in children." Thesis, БДМУ, 2019. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/19197.

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29

GARANX, ALAIN. "Modifications biologiques induites par l'activite physique chez le sujet age." Lille 2, 1990. http://www.theses.fr/1990LIL2M337.

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30

HANNON, LUDOVIC, and BERTRAND DEMORY. "Le dosage de l'osteocalcine dans une population de 129 sujets temoins, etude des correlations avec le bilan phosphocalcique et l'activite physique." Lille 2, 1988. http://www.theses.fr/1988LIL2M113.

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31

Parry, Stephen Finlay. "Age and underlying cause of hot-spring activity at Rhynie, Aberdeenshire, Scotland." Thesis, University of Aberdeen, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420109.

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Rhynie ranks as the oldest known example of a subaerial hot-spring system. A new, robust radiometric age for the Rhynie Chert is herein presented, and a genetic model for the Rhynie hydrothermal system and its concomitant mineralization established. Consideration is also given to the Rhynie Outlier in the context of the Siluro-Devonian evolution of Scotland. The Milton of North (basaltic) andesite, a lava flow tentatively assigned to the Tillybrachty Sandstone Formation (i.e. lying stratigraphically beneath the Rhynie cherts), has yielded an ID-TIMS U-Pb zircon-titanite age of 409-6 ± 1.1 ma

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Johnson, Sherèè Johnson. "Income, Education, Age, and Physical Activity Among Physically Disabled African American Women." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/4298.

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This study was designed to identify possible risk factors about physical activity in middle-aged disabled African American women (AAW) aged 45 to 64 years. Disabled middle-aged AAW has a disproportionate prevalence of obesity and chronic illness than nondisabled women. Most disabled middle-aged AAW leads a sedentary lifestyle, and they do not meet the recommended physical activity (PA) guidelines. Little is known about this group, and a social ecological model was used to explain PA patterns. Data were extracted from the 2009 Behavioral Risk Factor Surveillance System (N = 1,599) for women who

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33

Cheung, Hang, and 張恆. "Association of physical activity and cognitive function among Chinese older adults." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4325097X.

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34

Frattini, S. "EPIGENETIC INVESTIGATION ON CYCLIC ONSET OF REPRODUCTIVE ACTIVITY IN DAIRY GOATS." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/487065.

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At our latitude and under natural conditions, goats show autumn heats with calvings in spring. Individual variability in the onset of puberty and reproductive activity could hide a genetic and epigenetic variability that can allow a selection of goats more prone to deseasonalization. As a consequence, breeders could easily spread milk production throughout the year. The aim of the project was to analyze epigenetic profiles responsible for the reproductive seasonality in goat species. Considering the lack of information in literature for the species, we decided, first of all, to focus our effor

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35

Gerolin, Giovanni <1997&gt. "Brand Activism in the age of Woke Capitalism." Master's Degree Thesis, Università Ca' Foscari Venezia, 2022. http://hdl.handle.net/10579/21413.

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Nowadays, management and marketing seem to have a new consciousness, while corporations seem to tell us that purpose comes before profit. In addition, they are showing us that taking a stand on social and political issues is demanded by consumers. In doing so, brands are starting to act like activists, at the point of transforming their campaigns into movements. The emergence of global issues, from climate change to polarization, has pushed companies to make a shift: this finds its origins in the social and activist movements, also suggesting a connection with their current engagement in futur

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36

Kartum, Kristin Fiskvik. "Effect of physical activity on gestational age and preterm birth: The HUNT study." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bevegelsesvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14692.

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Background The level of physical activity (PA) in the general population is considered too low, and this has also been shown for pregnant women. Although recent research has shown that regular moderate PA may be beneficial both for the mother and the fetus in relation to complications during pregnancy, the effect of being physically active before and during pregnancy is still debated. Objectives The aim of this study is to examine the effect of PA before and during pregnancy in relation to mean gestational age and risk of preterm birth in a large cohort of women. Subjects The study included a

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37

Bradbury, Elizabeth. "The effects of aerobic activity on psychological mood states in college-age females /." Connect to online version, 1989. http://minds.wisconsin.edu/handle/1793/38888.

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38

Rasmussen, Diane. "Nutrition, physical activity and health assessment of school age children in Menomonie, Wisconsin." Menomonie, WI : University of Wisconsin--Stout, 2007. http://www.uwstout.edu/lib/thesis/2007/2007rasmussend.pdf.

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39

Degros, Éric B. "Activites physiques du sujet age et systeme nerveux central." Lille 2, 1991. http://www.theses.fr/1991LIL2M060.

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40

Ding, Li. "Synthèse de molécules hybrides cytotoxiques métalloporphyrine-intercalant et étude de leur activité nucléase." Toulouse 3, 1990. http://www.theses.fr/1990TOU30016.

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Les travaux exposes dans ce memoire sont relatifs a une modelisation de la bleomycine, medicament antitumoral, capable de degrader l'adn par oxydation selon un mecanisme similaire a celui des monooxygenases (cytochrome p-450). La faible activite cytotoxique et nuclease in vitro des molecules hybrides metalloporphyrine hydrophobe-ellipticine montre l'interet de la synthese de metalloporphyrines ayant une forte affinite pour les acides nucleiques. Ainsi, la synthese de nouvelles metalloporphyrines cationiques fonctionnalisees hydrosolubles cytotoxiques ayant une forte affinite pour l'adn et une

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41

Snyman, Lourien. "Physical activity and homocysteine in Tswana adolescents : the play : study / L. Snyman." Thesis, North-West University, 2008. http://hdl.handle.net/10394/4319.

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劉肇妍 and Siu-in Lau. "Evidence-based guideline for increasing physical activity among Chinese older adults with depressive symptoms." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/193071.

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Depression has become a medical condition that affects more and more of the aged Hong Kong population, yet this condition is often overlooked. Depression is a treatable condition. Nevertheless, the current practice in Hong Kong relies heavily on medication and cognitive-behavioural therapy. The effectiveness of these two types of therapy is limited by the side-effects of the medications and the accessibility to medical facilities for cognitive-behavioural therapy. Physical activity is suggested by many studies to be effective in managing depressive symptoms in the population. Physical exerc

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Chen, Yu-Ling. "Correlates of sedentary behaviour in mid-age and older adults." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21658.

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Sedentary behaviour (SB) is prevalent across all ages, but particularly in older adults aged 50 years and above. Given that older adults spend more than 60% of waking hours sedentary, enhancing our understanding of the correlates of SB will be important to inform the development of interventions to reduce SB in mid-age and older adults. This thesis provides five studies focusing on the correlates of SB in mid-age and older adults. Firstly, Chapter 2 presents a literature review using behaviour epidemiology framework to examine the existing evidence on sedentary behaviour in general adults in o

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Mark, Erin M. "Cognitive Activity and Intelligence: Implications for the Cognitive Reserve Model." Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1173277687.

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45

Coldwells, Adam. "Effects of age and physical activity on the entrainment of human circadian rhythms following a phase shift." Thesis, Liverpool John Moores University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321360.

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46

Casefont-Ducancelle, Alexandra. "ADN polymérase du cytomégalovirus humain : activité enzymatique et sensibilité aux entiviraux." Paris 5, 2005. http://www.theses.fr/2005PA05N15S.

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Le foscarnet, utilisé pour traiter les infections sévères à cytomégalovirus, est un inhibiteur de l'ADN polymérase, codé par le gène UL54. Le but du travail était d'étudier le retentissement de mutations introduites dans UL54 sur l'activité de l'enzyme et la résistance au foscarnet. Une méthode originale, reposant sur la mesure de l'incorporation de nucléotides trisphosphates marqués à la digoxigénénine dans le brin d'ADN en formation, a été mise au point pour mesurer l'activité d'ADN polymérases sauvages et mutées, et leur comportement en présence de foscarnet. L 'implication de l'extrémité N

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47

Caimi, S. "NATURAL COMPOUNDS AND THEIR ANALOGUES : SYNTHESIS AND EVALUATION OF ANTIFUNGAL ACTIVITY." Doctoral thesis, Università degli Studi di Milano, 2008. http://hdl.handle.net/2434/49778.

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Campbell, Heather Diane, and n/a. "MOTIVES OF MATURE-AGE INDIVIDUALS FOR PARTICIPATING IN COMPETITIVE SPORTS: A CASE STUDY FOR MASTERS SQUASH." University of Canberra. Sports Studies, 2009. http://erl.canberra.edu.au./public/adt-AUC20091222.155411.

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The purpose of this study was threefold. Primarily it was to identify the underlying motivational influences determining why mature age men and women continue playing sport competitively, long after they have reached their peak performance level. Secondly, the study sought to ascertain whether there was a change in specific temperament attributes, such as competitiveness, as Squash players became older, and whether any changes were restricted primarily to the sporting environment, or did changes pervade other areas ofthe individuals' lives. The third purpose of the study was to design a new me

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49

Thomas, Caitlyn Alyse. "Associations Among Age, Physical Activity, Insulin Sensitivity, Resistin, Endothelin-1, Adiponectin, and IGF-1 Levels." Miami University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1532976274272611.

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Benson, Tera L. Lensegrav. "Effects of Physical Activity and Religiosity on Psychophysiological Reactivity in an Aging Population." DigitalCommons@USU, 2002. https://digitalcommons.usu.edu/etd/6173.

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Physical activity is known to offer health benefits. Additionally, research has linked religious involvement with health. Psychophysiological reactivity has links to coronary heart disease. This study examines the relationship between physical activity and religiosity in light of psychophysiological reactivity. The sample included 75 subjects, with a mean age of 71. 7 (SD = 6.11 ), with no history of cardiac incident. Religiosity was measured with the Religious Orientation Scale (ROS). Physical activity was assessed utilizing the Typical Week Physical Activity Scale. Psychophysiological reacti

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