• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 8919
  • 5129
  • 2645
  • 1596
  • 845
  • 841
  • 291
  • 289
  • 246
  • 167
  • 122
  • 117
  • 113
  • 86
  • 76
  • Tagged with
  • 25426
  • 3562
  • 3428
  • 3331
  • 2171
  • 1835
  • 1831
  • 1426
  • 1382
  • 1353
  • 1284
  • 1278
  • 1131
  • 1097
  • 1033
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

The protease genes expression in Ulva fasciata (Ulvales, Chlorophyta) in relation to hypersalinity-induced oxidative stress and protein oxidation

Sung, Ming-Hsuan 18 July 2006 (has links)
This study has investigated the gene expression of ubiquitin¡B20S proteasome beta subunit type 1 (20s£]1)¡Bubiquitin-conjugating enzyme e2 (ucee2)¡BATP-dependent caseinolytic protease regulatory subunit (clpC) in the marine macroalga Ulva fasciata Delile in relation to the hypersalinity-induced oxidative stress and protein oxidation. During the early stage (0-1 h), the water contents and TTC (2,3,5-tripheny tetrazolium chloride) reduction ability maintained unchanged but recovery ability and photosynthetic ability (PS II activity as indicated by Fv/Fm) were decreased along with accumulated H2O2, suggesting the occurrence of oxidative stress. Only ubiquitin expressed at this stage. During 1-3 h, water lost (approximately 33% of the control) with a further decrease in recovery ability, TTC reduction ability¡BPS II activity but more H2O2 accumulation and protein carbonyl compound. The transcripts of 20s£]1 and clpC and caseinolytic protease activity increased at this stage with the maximum of clpC at hour 3. In the 6-48 h, water lost seriously with high accumulated free amino acid at 6-12 h but low recovery ability. The transcript amounts of ubiquitin¡B20s£]1 and ucee2 increased marked during this stage, in which these might be related to programmed cell death caused by long-term exposure to hypersalinity. Reactive oxygen species (ROS) scavengers inhibited H2O2 accumulation, caseinolytic proteolytic activity increase, carbonyl compound formation and gene expression of ubiquitin¡B20s£]1¡Bucee2¡BclpC, indicating a role of ROS in the regulation of protease genes. A role of polyamines in the regulation of protease gene expression was tested. Spermidine and spermine inhibited the gene expression of ubiquitin¡B20s£]1 and ucee2, the oxidation of proteins (carbonyl groups) and the induction of caseinolytic protease activity in 90‰-treated thalli, whereas putrescine inhibited clpC expression, the oxidation of proteins and caseinolytic protease activity but enhanced the gene expression of ubiquitin¡B20s£]1 and ucee2. In conclusion, the results of the present investigation show that the degradation of oxidatively damaged proteins under hypersalinity conditions by increased caseinolytic protease activity is driven by the up-regulation of clpC gene expression via ROS and polyamines. It seems likely that the induction of ubiquitin¡B20s£]1 and ucee2 gene expression might be associated with the hypersalinity-mediated programmed cell death.
202

A Study on Job Stress to Job Performance¡GCounseling as a Moderator

Tseng, Yu-man 03 November 2009 (has links)
The purpose of this study is to understand the following relationship: 1. The relationship between job stress and job performance. 2. Is consultant a moderator between job stress and job performance? 3. Is the personal demographic information as an obvious difference between job stress and job performance? The questionnaire survey was adopted for the study. Moreover, there are some statistic methods, such as conducting the poll through questionnaires, factor analysis, descriptive statistic, T test, ANOVA, correlation analysis, regression analysis and other relevant analysis, used in this research, After statistical analysis, the conclusions from this study are as following: 1. Job stress and job performance have statistically negative relationship. 2. There is no answer about if the consultant as a moderator between job stress and job performance. No one has the experience of seeking the consultant in the retrieve questionnaire materials. Therefore, it is unable to learn if the consultant as a moderator between job stress and job performance. 3. Marriage has an influential effect in the relationship between job stress and job performance. Other personal demographic information, such as gender, age, schooling record, seniority and current position within company, do not have significant difference in the relationship between job stress and job performance. One of the purpose of this thesis is to understand if the consultant as a moderator between job stress and job performance. Unfortunately, there is no information to prove it. Suggest backward researcher when questionnaire design can apply ink to paper or depth interview more.
203

The evaluation of an eclectic stress management program for adults who suffer from stress and related disorders in a group psychoeducational setting /

Al-Faraidy, Ahmed, January 2000 (has links)
Thesis (M.Ed.)--Memorial University of Newfoundland, 2000. / Bibliography: leaves 73-75.
204

Out in the cold : Alaskan women's use of supportive communication and support networks /

Kiefer, Curtis A. January 2009 (has links) (PDF)
Thesis (M.A.)--University of Wisconsin--Stevens Point, 2009. / Submitted in partial fulfillment of the requirements for the degree Master of Arts in Communication, Division of Communication. Includes bibliographical references (leaves 114-120).
205

Cortisol recovery from stress : the roles of childhood abuse, recent adversity, and affect among depressed and never-depressed women /

Penza, Kristin Marie. January 2002 (has links)
Thesis (Ph. D.)--University of Oregon, 2002. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 125-137). Also available for download via the World Wide Web; free to University of Oregon users.
206

Hur arbetsrelaterad stress påverkar sjuksköterskors arbete och privatliv- en litteraturöversikt

Andersson, Linnea, Wennberg Forsberg, Tove January 2015 (has links)
Bakgrund: Kraven inom hälso- och sjukvården har ökat och sjuksköterskor måste ha kunskap inom många områden och samtidigt bedriva en säker vård. Arbetsmiljön är i många lägen bristfällig och har betydelse för arbetsrelaterad stress. Arbetsrelaterad stress uppstår när det upplevs att det inte finns möjlighet att lösa arbetsuppgifter på grund av otillräckliga kunskaper eller resurser. Syfte: Syftet var att belysa orsaker till arbetsrelaterad stress och hur sådan stress påverkar sjuksköterskors arbete och privatliv. Metod: Detta arbete utformades som en litteraturöversikt för att ge en övergripande bild av forskningsläget. Databassökningar gjordes och artiklar granskades, analyserades och ett resultat skapades som inkluderade 15 vetenskapliga artiklar. Resultat: I resultatet framkom fem huvudteman: “Arbetsmiljö och krav som orsak“, “Arbetslaget som orsak”, “Fysiska och psykiska effekter som drabbar sjuksköterskan”, “Påverkan på patientsäkerheten” och “ Behov av kunskap och kompetensutveckling”. Diskussion: I sjuksköterskors arbetsmiljö förekom förhållanden som orsakade hög arbetsbelastning och stress. Detta ledde till att många sjuksköterskor övervägde att lämna yrket. Sjuksköterskor oroade sig för kvaliteten på vården på grund av den höga arbetsbelastningen. Slutsats: Flera faktorer påverkade sjuksköterskors upplevelse av arbetsrelaterad stress. Dessa faktorer kan leda till konsekvenser, inte bara för patientsäkerheten utan också för personalens egen hälsa. Nyckelord: Arbetsbelastning, Arbetsförhållanden, Arbetsmiljö, Arbetsrelaterad stress, Sjuksköterskor, Stress.Chattkonversationen är avslutad
207

Effectiveness of meditation-based stress reduction programs: a review

Cheung, Pik-wa, Renita., 張碧華. January 2007 (has links)
published_or_final_version / Nursing Studies / Master / Master of Nursing in Advanced Practice
208

Den stressade eleven : En enkätstudie om stressorer som utsätter barnen för stress

Abdelamer, Liena January 2011 (has links)
Researchers claim that stress has become a word of fashion and is now frequently used. They also state that there is no accepted definition that can easily describe the concept. In this essay, I have examined children and stress. The aim of the diploma work is to illustrate stress more closely the stress concept, the underlying reasons that can influence children and how teachers and school staff support children in their stress handling. My three issues are: What is stress? What stressors put children, at home and at school, in a stress situation? How can teachers help children to manage their stress? The diploma work is based on a literature study in order to find out what has been written on the subject in earlier research. Moreover, the work is based on four interviews with three class teachers and a school nurse in order to illustrate their experiences of what stresses children at school. In order to get a good base for the work the children's participation was of utmost importance to get a good base for the work, therefore questionnaires were given to 89 children in class 4 and 5. The results of the questionnaires showed that children had little or no knowledge of the stress concept. They associate it most often with lack of time and having to hurry. Children can be stressed just like adults. In addition, stress levels differ greatly between them, which means that some children feel more stress-tolerant than others. The conclusion that can be drawn from this study is that the child's environment affects the child, school and home being the greatest stress factors.                                                                                           Keywords: Children under stress, stress, stressor, stress handling.
209

Streso problema įvairiose ugdymo įstaigose / The problem of stress in various educational institutions

Charašauskienė, Vaiva 22 May 2006 (has links)
Place of writing the study: Lithuanian university of agriculture. Institute of rural culture. Academy. 2006 years. Volume of work:57 pages There are:3 tables, 14 pictures, 5 appendices Bibliography:39 publications Object of research: Stress experienced by the the people at work in educational institutions Methods of research: 1. The analysis of bibliography. 2. The questionnaire about stress at work taken from J.Pikūnas, A.Palujanskienė‘s book „Stresas“ (2005), page No 86. 3. The questionnaire about inner stressors taken from J. Pikūnas, A.Palujanskienė‘s book „ Stresas“ (2005), page No 30. 4. Additional questions in order to rate stressors affecting workers in educational institutions and ways of overcoming stress. 5. The statistical analysis of data. Results of research: The hypothesis of research proved partly: there is a different level of stress in different schools; factors influencing stress are different but ways of dealing with stress are the same, except the activity in spirituals. Educators at Lukšiai secondary school and Viliampolė children and youth boarding – school feel moderate stress; educators at Kolpingas College suffer from strong stress. Inner stressors mostly affect workers at Viliampolė children and youth boarding – school is the sequence of structure of the organization and microclimate. There is no one dominant factor for the teachers at Lukšiai V.Grybas secondary school – both factors related with tasks, the role of the worker and communication... [to full text]
210

Ledarskap och dess påverkan på arbetsförhållanden och välbefinnande

Liljedahl, Sonja January 2014 (has links)
Syftet med föreliggande studie är att få kunskap om hur medarbetarna uppfattar sina arbetsförhållanden, sitt välbefinnande i relation till arbetet och ledarskapet. Vidare syftar studien till att få kunskap om hur ledarskap påverkar medarbetarnas uppfattning om arbetsförhållanden och medarbetarnas välbefinnande. 85 deltagare (N=85) kompletterade ett webbaserad frågeformulär som bestod av 48 frågor med frågerubrikerna krav, kontroll, stöd, rättvisa, mobbing och trakasseri, hälsa och välbefinnande samt ledarskap. Resultatet visar att medarbetarna upplever sig ha delvis bra arbetsförhållanden och delvis bra välbefinnande. Vidare visar resultatet att arbetsförhållanden, välbefinnande och ledarskap korrelerar signifikant positivt med varandra där starkaste korrelationen finns mellan välbefinnande och ledarskap. En multipel regressionsanalys visar att ledarskap har en unik och direkt relation till välbefinnande. Slutsatsen av studien är att ledarskap är den viktigaste faktorn som påverkar medarbetarnas välbefinnande och att företaget bör fokusera på ledarskapsutveckling.

Page generated in 0.0678 seconds