Introduction to Stress Management
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Stress Management Strategies
How Can We Manage Work-related Stress? Louise Thomson, Research Fellow, IES Over the last decade, organisations have become increasingly aware of the need to manage stress. There have been two drivers for this. The first is the need for a motivated and productive workforce, where the negative effects of stress on attendance, performance, job satisfaction and commitment are minimised. The second is an organisation’s legal responsibilities for the care of their employees. The current health and safety legislation means that employers are legally bound to make sure that their employees aren’t made ill by their work, and this includes ill- health due to stress (EC, 1989; HSC, 1999). But what exactly is stress and what approaches to managing it are recommended? This paper aims to address these questions by summarising what is known about work-related stress and describing the three types of intervention strategies that can be used to manage it, which involve: ! preventing stress ! reacting to problems in a timely way ! treating the effects of stress once they have occurred. In doing so, it is hoped that organisations can review their existing activities as well as identify areas for the development of new stress management interventions. We begin by clarifying what we already know about work-related stress, its causes and its effects. What is work-related stress? It is now widely accepted that the experience of stress at work has undesirable consequences for the health of individuals and for the performance of their organisations. Work-related stress is recognised as one of the major occupational health problems for organisations to deal with. -
Social Psychoneuroimmunology: Understanding Bidirectional Links Between Social Experiences and the Immune System
Brain, Behavior, and Immunity xxx (xxxx) xxx Contents lists available at ScienceDirect Brain Behavior and Immunity journal homepage: www.elsevier.com/locate/ybrbi Viewpoint Social psychoneuroimmunology: Understanding bidirectional links between social experiences and the immune system Keely A. Muscatell University of North Carolina at Chapel Hill, Chapel Hill, NC, United States Does the immune system have a “social life,” wherein our social have historically signaled) increased likelihood of injury (e.g., ostra experiences can affect and be affected by the activities of the immune cism) or infection (e.g., socially connecting with others) will lead to system? Research in the nascent subfield of social psychoneuroimmunol changes in the activities of the immune system (Kemeny, 2009; Eisen ogy suggests that the answer to this question is a resounding “yes” – there berger et al., 2017; Gassen and Hill, 2019; Slavich and Cole, 2013; are profound bidirectional connections between social experiences and Leschak and Eisenberger, 2019). The second core tenant is that the brain the immune system. Yet there are also vast opportunities for discovery in is constantly monitoring the physiological state of the body and inte this new subfield. In this article, I briefly define and outline some core grating this information with signals from the broader environment to tenants of social psychoneuroimmunology (Fig. 1). I also highlight op gauge metabolic demands and guide adaptive behavior (Sterling, 2012). portunities for future work in this area. Bringing together social psy As such, even relatively minor fluctuationsin immune system activation chological and psychoneuroimmunology research will undoubtedly lead outside of an experience of acute illness, injury, or chronic disease, can to important discoveries about the interconnections between the im feed back to the brain to guide social cognition and behavior. -
Lecture 1: Introduction
Lecture 1: Introduction E. J. Hinch Non-Newtonian fluids occur commonly in our world. These fluids, such as toothpaste, saliva, oils, mud and lava, exhibit a number of behaviors that are different from Newtonian fluids and have a number of additional material properties. In general, these differences arise because the fluid has a microstructure that influences the flow. In section 2, we will present a collection of some of the interesting phenomena arising from flow nonlinearities, the inhibition of stretching, elastic effects and normal stresses. In section 3 we will discuss a variety of devices for measuring material properties, a process known as rheometry. 1 Fluid Mechanical Preliminaries The equations of motion for an incompressible fluid of unit density are (for details and derivation see any text on fluid mechanics, e.g. [1]) @u + (u · r) u = r · S + F (1) @t r · u = 0 (2) where u is the velocity, S is the total stress tensor and F are the body forces. It is customary to divide the total stress into an isotropic part and a deviatoric part as in S = −pI + σ (3) where tr σ = 0. These equations are closed only if we can relate the deviatoric stress to the velocity field (the pressure field satisfies the incompressibility condition). It is common to look for local models where the stress depends only on the local gradients of the flow: σ = σ (E) where E is the rate of strain tensor 1 E = ru + ruT ; (4) 2 the symmetric part of the the velocity gradient tensor. The trace-free requirement on σ and the physical requirement of symmetry σ = σT means that there are only 5 independent components of the deviatoric stress: 3 shear stresses (the off-diagonal elements) and 2 normal stress differences (the diagonal elements constrained to sum to 0). -
Stress, Emotion Regulation, and Well-Being Among Canadian Faculty Members in Research-Intensive Universities
social sciences $€ £ ¥ Article Stress, Emotion Regulation, and Well-Being among Canadian Faculty Members in Research-Intensive Universities Raheleh Salimzadeh *, Nathan C. Hall and Alenoush Saroyan Department of Educational and Counselling Psychology, McGill University, Montreal, QC H3A 1Y2, Canada; [email protected] (N.C.H.); [email protected] (A.S.) * Correspondence: [email protected] Received: 22 September 2020; Accepted: 25 November 2020; Published: 10 December 2020 Abstract: Existing research reveals the academic profession to be stressful and emotion-laden. Recent evidence further shows job-related stress and emotion regulation to impact faculty well-being and productivity. The present study recruited 414 Canadian faculty members from 13 English-speaking research-intensive universities. We examined the associations between perceived stressors, emotion regulation strategies, including reappraisal, suppression, adaptive upregulation of positive emotions, maladaptive downregulation of positive emotions, as well as adaptive and maladaptive downregulation of negative emotions, and well-being outcomes (emotional exhaustion, job satisfaction, quitting intentions, psychological maladjustment, and illness symptoms). Additionally, the study explored the moderating role of stress, gender, and years of experience in the link between emotion regulation and well-being as well as the interactions between adaptive and maladaptive emotion regulation strategies in predicting well-being. The results revealed that cognitive reappraisal was a health-beneficial strategy, whereas suppression and maladaptive strategies for downregulating positive and negative emotions were detrimental. Strategies previously defined as adaptive for downregulating negative emotions and upregulating positive emotions did not significantly predict well-being. In contrast, strategies for downregulating negative emotions previously defined as dysfunctional showed the strongest maladaptive associations with ill health. -
Navier-Stokes-Equation
Math 613 * Fall 2018 * Victor Matveev Derivation of the Navier-Stokes Equation 1. Relationship between force (stress), stress tensor, and strain: Consider any sub-volume inside the fluid, with variable unit normal n to the surface of this sub-volume. Definition: Force per area at each point along the surface of this sub-volume is called the stress vector T. When fluid is not in motion, T is pointing parallel to the outward normal n, and its magnitude equals pressure p: T = p n. However, if there is shear flow, the two are not parallel to each other, so we need a marix (a tensor), called the stress-tensor , to express the force direction relative to the normal direction, defined as follows: T Tn or Tnkjjk As we will see below, σ is a symmetric matrix, so we can also write Tn or Tnkkjj The difference in directions of T and n is due to the non-diagonal “deviatoric” part of the stress tensor, jk, which makes the force deviate from the normal: jkp jk jk where p is the usual (scalar) pressure From general considerations, it is clear that the only source of such “skew” / ”deviatoric” force in fluid is the shear component of the flow, described by the shear (non-diagonal) part of the “strain rate” tensor e kj: 2 1 jk2ee jk mm jk where euujk j k k j (strain rate tensro) 3 2 Note: the funny construct 2/3 guarantees that the part of proportional to has a zero trace. The two terms above represent the most general (and the only possible) mathematical expression that depends on first-order velocity derivatives and is invariant under coordinate transformations like rotations. -
Leonhard Euler Moriam Yarrow
Leonhard Euler Moriam Yarrow Euler's Life Leonhard Euler was one of the greatest mathematician and phsysicist of all time for his many contributions to mathematics. His works have inspired and are the foundation for modern mathe- matics. Euler was born in Basel, Switzerland on April 15, 1707 AD by Paul Euler and Marguerite Brucker. He is the oldest of five children. Once, Euler was born his family moved from Basel to Riehen, where most of his childhood took place. From a very young age Euler had a niche for math because his father taught him the subject. At the age of thirteen he was sent to live with his grandmother, where he attended the University of Basel to receive his Master of Philosphy in 1723. While he attended the Universirty of Basel, he studied greek in hebrew to satisfy his father. His father wanted to prepare him for a career in the field of theology in order to become a pastor, but his friend Johann Bernouilli convinced Euler's father to allow his son to pursue a career in mathematics. Bernoulli saw the potentional in Euler after giving him lessons. Euler received a position at the Academy at Saint Petersburg as a professor from his friend, Daniel Bernoulli. He rose through the ranks very quickly. Once Daniel Bernoulli decided to leave his position as the director of the mathmatical department, Euler was promoted. While in Russia, Euler was greeted/ introduced to Christian Goldbach, who sparked Euler's interest in number theory. Euler was a man of many talents because in Russia he was learning russian, executed studies on navigation and ship design, cartography, and an examiner for the military cadet corps. -
Euler and Chebyshev: from the Sphere to the Plane and Backwards Athanase Papadopoulos
Euler and Chebyshev: From the sphere to the plane and backwards Athanase Papadopoulos To cite this version: Athanase Papadopoulos. Euler and Chebyshev: From the sphere to the plane and backwards. 2016. hal-01352229 HAL Id: hal-01352229 https://hal.archives-ouvertes.fr/hal-01352229 Preprint submitted on 6 Aug 2016 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. EULER AND CHEBYSHEV: FROM THE SPHERE TO THE PLANE AND BACKWARDS ATHANASE PAPADOPOULOS Abstract. We report on the works of Euler and Chebyshev on the drawing of geographical maps. We point out relations with questions about the fitting of garments that were studied by Chebyshev. This paper will appear in the Proceedings in Cybernetics, a volume dedicated to the 70th anniversary of Academician Vladimir Betelin. Keywords: Chebyshev, Euler, surfaces, conformal mappings, cartography, fitting of garments, linkages. AMS classification: 30C20, 91D20, 01A55, 01A50, 53-03, 53-02, 53A05, 53C42, 53A25. 1. Introduction Euler and Chebyshev were both interested in almost all problems in pure and applied mathematics and in engineering, including the conception of industrial ma- chines and technological devices. In this paper, we report on the problem of drawing geographical maps on which they both worked. -
Which Is It: ADHD, Bipolar Disorder, Or PTSD?
HEALINGHEALINGA PUBLICATION OF THE HCH CLINICIANS’ HANDSHANDS NETWORK Vol. 10, No. 3 I August 2006 Which Is It: ADHD, Bipolar Disorder, or PTSD? Across the spectrum of mental health care, Anxiety Disorders, Attention Deficit Hyperactivity Disorders, and Mood Disorders often appear to overlap, as well as co-occur with substance abuse. Learning to differentiate between ADHD, bipolar disorder, and PTSD is crucial for HCH clinicians as they move toward integrated primary and behavioral health care models to serve homeless clients. The primary focus of this issue is differential diagnosis. Readers interested in more detailed clinical information about etiology, treatment, and other interventions are referred to a number of helpful resources listed on page 6. HOMELESS PEOPLE & BEHAVIORAL HEALTH Close to a symptoms exhibited by clients with ADHD, bipolar disorder, or quarter of the estimated 200,000 people who experience long-term, PTSD that make definitive diagnosis formidable. The second chronic homelessness each year in the U.S. suffer from serious mental causative issue is how clients’ illnesses affect their homelessness. illness and as many as 40 percent have substance use disorders, often Understanding that clinical and research scientists and social workers with other co-occurring health problems. Although the majority of continually try to tease out the impact of living circumstances and people experiencing homelessness are able to access resources comorbidities, we recognize the importance of causal issues but set through their extended family and community allowing them to them aside to concentrate primarily on how to achieve accurate rebound more quickly, those who are chronically homeless have few diagnoses in a challenging care environment. -
A Comprehensive Model of Stress-Induced Binge Eating: the Role of Cognitive Restraint, Negative Affect, and Impulsivity in Binge Eating As a Response to Stress
The University of Maine DigitalCommons@UMaine Electronic Theses and Dissertations Fogler Library Summer 8-21-2020 A Comprehensive Model of Stress-induced Binge Eating: The Role of Cognitive Restraint, Negative Affect, and Impulsivity In Binge Eating as a Response to Stress Rachael M. Huff [email protected] Follow this and additional works at: https://digitalcommons.library.umaine.edu/etd Part of the Psychological Phenomena and Processes Commons, and the Women's Health Commons Recommended Citation Huff, Rachael M., "A Comprehensive Model of Stress-induced Binge Eating: The Role of Cognitive Restraint, Negative Affect, and Impulsivity In Binge Eating as a Response to Stress" (2020). Electronic Theses and Dissertations. 3238. https://digitalcommons.library.umaine.edu/etd/3238 This Open-Access Thesis is brought to you for free and open access by DigitalCommons@UMaine. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of DigitalCommons@UMaine. For more information, please contact [email protected]. Running head: A COMPREHENSIVE MODEL OF STRESS-INDUCED BINGE EATING A COMPREHENSIVE MODEL OF STRESS-INDUCED BINGE EATING: THE ROLE OF COGNITIVE RESTRAINT, NEGATIVE AFFECT, AND IMPULSIVITY IN BINGE EATING AS A RESPONSE TO STRESS By Rachael M. Huff B.A., Michigan Technological University, 2014 M.A., University of Maine, 2016 A DISSERTATION Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy (in Clinical Psychology) The Graduate School The University of Maine August 2020 Advisory Committee: Shannon K. McCoy, Associate Professor of Psychology, Chair Emily A. P. Haigh, Assistant Professor of Psychology Shawn W. -
On the Geometric Character of Stress in Continuum Mechanics
Z. angew. Math. Phys. 58 (2007) 1–14 0044-2275/07/050001-14 DOI 10.1007/s00033-007-6141-8 Zeitschrift f¨ur angewandte c 2007 Birkh¨auser Verlag, Basel Mathematik und Physik ZAMP On the geometric character of stress in continuum mechanics Eva Kanso, Marino Arroyo, Yiying Tong, Arash Yavari, Jerrold E. Marsden1 and Mathieu Desbrun Abstract. This paper shows that the stress field in the classical theory of continuum mechanics may be taken to be a covector-valued differential two-form. The balance laws and other funda- mental laws of continuum mechanics may be neatly rewritten in terms of this geometric stress. A geometrically attractive and covariant derivation of the balance laws from the principle of energy balance in terms of this stress is presented. Mathematics Subject Classification (2000). Keywords. Continuum mechanics, elasticity, stress tensor, differential forms. 1. Motivation This paper proposes a reformulation of classical continuum mechanics in terms of bundle-valued exterior forms. Our motivation is to provide a geometric description of force in continuum mechanics, which leads to an elegant geometric theory and, at the same time, may enable the development of space-time integration algorithms that respect the underlying geometric structure at the discrete level. In classical mechanics the traditional approach is to define all the kinematic and kinetic quantities using vector and tensor fields. For example, velocity and traction are both viewed as vector fields and power is defined as their inner product, which is induced from an appropriately defined Riemannian metric. On the other hand, it has long been appreciated in geometric mechanics that force should not be viewed as a vector, but rather a one-form. -
Managing Stress of Humanitarian Emergencies
Staff Welfare Section Division of Human Resources Management UNHCR HQ Managing tress the S of Humanitarian Emergencies The UN Refugee Agency The UN Refugee Agency Table of Contents Pg. Foreword 4 1. Stress and UNHCR 5 1.1 Stress and Humanitarian Organisations 5 1.2 Risk of Stress to UNHCR Staff in Emergency Situations 5 1.3 Role of UNHCR Team Leaders 6 1.4 Using Information about Stress 6 2. Recognizing Signs and Sources of Stress 7 2.1 What is Stress? 7 2.1.1 What are sources of Stress for UNHCR? 7 2.1.2 How Do People Respond to Stress? 8 2.1.3 What Does Stress Look Like? 8 2.1.4 What Types of Stress Affect Humanitarian Workers? 9 2.2 Recognizing Signs of Cumulative Stress 9 2.2.1 Sources of Cumulative Stress in Humanitarian Operations 11 2.3 Recognizing Signs of Burnout 12 2.3.1 Signs of Burnout in Individuals 13 2.3.2 Signs of Burnout in the Work Groups 13 2.4 Crisis Situations and Critical Events 14 2.4.1 Staff Vulnerability and Resilience 15 2.4.2 Recognizing Critical Events 15 2.4.3 Recognizing Signs of Critical Event Stress 16 2.4.4 Recognizing “Covert” Critical Events 17 2.4.5 Sources of Stress in Critical Events 18 2.5 Communication and Stress 19 2.5.1 Personal Communication Styles 19 2.5.2 Communication in the Multicultural Work Group 19 3. Stress Management Strategies 20 3.1 Basic Stress Management 20 3.1.1 Self Care 20 3.1.2 Responsive Leadership 21 3.1.3 The Buddy System 22 3.2 Sustaining The Workforce: Checklist for Managers 22 3.2.1 Everyday Care 22 3.2.2 Support for Critical Incidents 24 3.3 Managing Transition 26 3.4 Addressing Burnout 27 4. -
Dealing with Stress! Anurag Gupta, IIT Kanpur Augustus Edward Hough Love (1863‐1940) Cliffor D Aabmbrose Tdlltruesdell III (1919‐2000)
Dealing with Stress! Anurag Gupta, IIT Kanpur Augustus Edward Hough Love (1863‐1940) Cliffor d AbAmbrose TdllTruesdell III (1919‐2000) (Portrait by Joseph Sheppard) What is Stress? “The notion (of stress) is simply that of mutual action between two bodies in contact, or between two parts of the same body separated by an imagined surface…” ∂Ω ∂Ω ∂Ω Ω Ω “…the physical reality of such modes of action is, in this view, admitted as part of the conceptual scheme” (Quoted from Love) Cauchy’s stress principle Upon the separang surface ∂Ω, there exists an integrable field equivalent in effect to the acon exerted by the maer outside ∂Ω to tha t whic h is iidinside ∂Ω and contiguous to it. This field is given by the traction vector t. 30th September 1822 t n ∂Ω Ω Augustin Louis Cauchy (1789‐1857) Elementary examples (i) Bar under tension A: area of the c.s. s1= F/A s2= F/A√2 (ii) Hydrostatic pressure Styrofoam cups after experiencing deep‐sea hydrostatic pressure http://www.expeditions.udel.edu/ Contact action Fc(Ω,B\ Ω) = ∫∂Ωt dA net force through contact action Fd(Ω) = ∫Ωρb dV net force through distant action Total force acting on Ω F(Ω) = Fc(Ω,B\ Ω) + Fd(Ω) Ω Mc(Ω,B\ Ω, c) = ∫∂Ω(X –c) x t dA moment due to contact action B Md(Ω, c) = ∫Ω(X – c) x ρb dV moment due to distant action Total moment acting on Ω M(Ω) = Mc(Ω,B\ Ω) + Md(Ω) Linear momentum of Ω L(Ω) = ∫Ωρv dV Moment of momentum of Ω G(Ω, c) = ∫Ω (X –c) x ρv dV Euler’s laws F = dL /dt M = dG /dt Euler, 1752, 1776 Or eqqyuivalently ∫∂Ωt dA + ∫Ωρb dV = d/dt(∫Ωρv dV) ∫∂Ω(X –c) x t dA + ∫Ω(X –c) x ρb dV = d/dt(∫Ω(X –c) x ρv dV) Leonhard Euler (1707‐1783) Kirchhoff, 1876 portrait by Emanuel Handmann Upon using mass balance these can be rewritten as ∫∂Ωt dA + ∫Ωρb dV = ∫Ωρa dV ∫∂Ω(X –c) x t dA + ∫Ω(X –c) x ρb dV = ∫Ω(X –c) x ρa dV Emergence of stress (A) Cauchy’s hypothesis At a fixed point, traction depends on the surface of interaction only through the normal, i.e.