Увійти

Готові списки джерел за темами / Stressful conditions / Статті в журналах

Статті в журналах з теми "Stressful conditions"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Stressful conditions.

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "Stressful conditions".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Lowe, Graham S., and Herbert C. Northcott. "Stressful Working Conditions and Union Dissatisfaction." Articles 50, no. 2 (April 12, 2005): 420–42. http://dx.doi.org/10.7202/051018ar.

Повний текст джерела

Анотація:

This paper examines the relationship between stressful working conditions, social support at work, employee distress, and union members' (dis)satisfaction with their union. It might be assumed that under stressful working conditions, unionized workers would turn to their union to seek better working conditions and would have a positive orientation toward their union. However, it is also possible that stressful working conditions and distressed, alienated employees will become dissatisfied not only with their job but also with their union. The data for this study corne from a survey of unionized postal workers employed by Canada Post Corporation in Edmonton in 1983.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Zemirli, Naima, Etienne Morel, and Diana Molino. "Mitochondrial Dynamics in Basal and Stressful Conditions." International Journal of Molecular Sciences 19, no. 2 (February 13, 2018): 564. http://dx.doi.org/10.3390/ijms19020564.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Cheng, Louis, and Jay White. "Measuring Pricing Inefficiencies Under Stressful Market Conditions." Journal of Business Finance Accounting 30, no. 3-4 (April 2003): 383–411. http://dx.doi.org/10.1111/1468-5957.t01-1-00002.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Lee, T. E., and H. S. Lips. "Changes in Nitrogen Metabolism under Stressful Conditions." Biochemical Society Transactions 28, no. 5 (October 1, 2000): A328. http://dx.doi.org/10.1042/bst028a328a.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Wong, W. "How to Stop Responding to Stressful Conditions." Science Signaling 6, no. 289 (August 20, 2013): ec198-ec198. http://dx.doi.org/10.1126/scisignal.2004645.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Kivimaki, M., M. Hotopf, and M. Henderson. "Do stressful working conditions cause psychiatric disorders?" Occupational Medicine 60, no. 2 (February 15, 2010): 86–87. http://dx.doi.org/10.1093/occmed/kqp183.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Duangurai, Taksaon, Nitaya Indrawattana, and Pornpan Pumirat. "Burkholderia pseudomalleiAdaptation for Survival in Stressful Conditions." BioMed Research International 2018 (May 27, 2018): 1–11. http://dx.doi.org/10.1155/2018/3039106.

Повний текст джерела

Анотація:

Burkholderia pseudomalleiis a Gram-negative bacterium that causes melioidosis, which can be fatal in humans. Melioidosis is prevalent in the tropical regions of Southeast Asia and Northern Australia. Ecological data have shown that this bacterium can survive as a free-living organism in environmental niches, such as soil and water, as well as a parasite living in host organisms, such as ameba, plants, fungi, and animals. This review provides an overview of the survival and adaptation ofB. pseudomalleito stressful conditions induced by hostile environmental factors, such as salinity, oxidation, and iron levels. The adaptation ofB. pseudomalleiin host cells is also reviewed. The adaptive survival mechanisms of this pathogen mainly involve modulation of gene and protein expression, which could cause alterations in the bacteria’s cell membrane, metabolism, and virulence. Understanding the adaptations of this organism to environmental factors provides important insights into the survival and pathogenesis ofB. pseudomallei, which may lead to the development of novel strategies for the control, prevention, and treatment of melioidosis in the future.

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Gustavsson, Maria, and Daniel Lundqvist. "Learning conditions supporting the management of stressful work." Journal of Workplace Learning 33, no. 2 (January 28, 2021): 81–94. http://dx.doi.org/10.1108/jwl-09-2019-0116.

Повний текст джерела

Анотація:

Purpose From a workplace learning perspective, the purpose of this paper is to explore the relationship between conditions for learning and stressful work and, to analyse the learning conditions that support the management of stressful work. The model of effort-reward imbalance (ERI) is adopted as an indicator of stressful work by measuring the relationship between Effort and Rewards in work. Design/methodology/approach The material consists of questionnaire data from 4,420 employees in ten public and private organisations in Sweden. Findings The results provide evidence that suggests that some workplace conditions known to enable learning also indicates a comparatively better chance for employees to manage stressful work. An innovative practice reduces the feelings of effort, whereas managerial support and knowledge sharing serve as rewards contributing to appreciation, while competence and career development create rewards in the form of opportunities for progression. Practical implications Workplaces in which there are enabling learning conditions can provide employees with ample resources for managing stressful work. Originality/value This paper explores the complex relationship between workplace learning conditions and the ERI model seen from a workplace learning perspective which has received relatively sparse attention in the literature.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Anderson, Paul, and Nancy Kedersha. "Stressful initiations." Journal of Cell Science 115, no. 16 (August 15, 2002): 3227–34. http://dx.doi.org/10.1242/jcs.115.16.3227.

Повний текст джерела

Анотація:

Stress granules (SGs) are phase-dense particles that appear in the cytoplasm of eukaryotic cells that have been exposed to environmental stress(e.g. heat, oxidative conditions, hyperosmolarity and UV irradiation). SG assembly is a consequence of abortive translational initiation: SGs appear when translation is initiated in the absence of eIF2-GTP-tRNAiMet, the ternary complex that normally loads tRNAiMet onto the small ribosomal subunit. Stress-induced depletion of eIF2-GTP-tRNAiMet allows the related RNA-binding proteins TIA-1 and TIAR to promote the assembly of eIF2-eIF5-deficient preinitiation complexes, the core constituents of SGs. The mRNP components that make up the SG are in a dynamic equilibrium with polysomes. As such, the SG appears to constitute a metabolic domain through which mRNPs are continually routed and subjected to triage — they are first monitored for integrity and composition, and then sorted for productive translational initiation or targeted degradation.

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Matarredona, Laura, Mónica Camacho, Basilio Zafrilla, Gloria Bravo-Barrales, Julia Esclapez, and María-José Bonete. "The Survival of Haloferax mediterranei under Stressful Conditions." Microorganisms 9, no. 2 (February 8, 2021): 336. http://dx.doi.org/10.3390/microorganisms9020336.

Повний текст джерела

Анотація:

Haloarchaea can survive and thrive under exposure to a wide range of extreme environmental factors, which represents a potential interest to biotechnology. Growth responses to different stressful conditions were examined in the haloarchaeon Haloferax mediterranei R4. It has been demonstrated that this halophilic archaeon is able to grow between 10 and 32.5% (w/v) of sea water, at 32–52 °C, although it is expected to grow in temperatures lower than 32 °C, and between 5.75 and 8.75 of pH. Moreover, it can also grow under high metal concentrations (nickel, lithium, cobalt, arsenic), which are toxic to most living beings, making it a promising candidate for future biotechnological purposes and industrial applications. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analysis quantified the intracellular ion concentrations of these four metals in Hfx. mediterranei, concluding that this haloarchaeon can accumulate Li+, Co2+, As5+, and Ni2+ within the cell. This paper is the first report on Hfx. mediterranei in which multiple stress conditions have been studied to explore the mechanism of stress resistance. It constitutes the most detailed study in Haloarchaea, and, as a consequence, new biotechnological and industrial applications have emerged.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Vdovichenko, Oksana. "CORRECTION OF ADOLESCENTS’ STRESSFUL CONDITIONS AT RECREATIONAL INSTITUTIONS." Science and Education 34, no. 9 (September 2016): 23–28. http://dx.doi.org/10.24195/2414-4665-2016-9-6.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Welsh, Louis W., John J. Welsh, and Laurie F. Rosen. "Function of a Hearing Aid under Stressful Conditions." Annals of Otology, Rhinology & Laryngology 109, no. 10 (October 2000): 929–39. http://dx.doi.org/10.1177/000348940010901006.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Abercrombie, Elizabeth D., and Barry L. Jacobs. "Systemic naloxone administration potentiates locus coeruleus noradrenergic neuronal activity under stressful but not non-stressful conditions." Brain Research 441, no. 1-2 (February 1988): 362–66. http://dx.doi.org/10.1016/0006-8993(88)91415-1.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Euler, Gallego Cartagena, Castillo RamÍrez Margarita, and MartÍnez Burgos Walter. "COLOMBIAN STRAIN OF DUNALIELLA SALINA AS A SOURCE OF METABOLITES OF HIGH COMMERCIAL VALUES." International Journal of Pharmacy and Pharmaceutical Sciences 9, no. 4 (February 14, 2017): 32. http://dx.doi.org/10.22159/ijpps.2017v9i4.15876.

Повний текст джерела

Анотація:

Objective: The objective was to evaluate the effect of stressful and non-stressful conditions on the growth and production of pigments in a strain of Dunaliella salina (D. salina) isolated from the artificial saline of Manaure municipality, department of La Guajira, Colombia in laboratory conditions.Methods: Two treatments were performed, one in non-stressful growing conditions with medium J/1 to 1 M NaCl, 190-µmol. m-2. s-1, 5.0 mmol KNO3, pH 8.2 and another in stressful conditions with medium J/1 to 4.0 M NaCl, 390 µmol. m-2. s-1, 0.50 mmol KNO3, each in triplicate. Population growth was assessed by cell count, and the pigment content was performed by spectrophotometric techniques.Results: It was found that the conditions of stressful influences in the growth and the production of carotenoids of D. salina in comparison with those cultures not stressed. There was a significant difference between the average values of total carotenoids in the experiment with stressful conditions with 9.67±0.19 µg/ml and the experiment with conditions not stressful with 1.54±0.08 µg/ml at the level of significance of p<0.05.Conclusion: It was demonstrated that the stressful condition in the culture is associated with an increase in the production of lipophilic antioxidants, among these carotenoids. The knowledge of the stressful conditions for the production of carotenoids from D. salina isolated from the saline of Manaure opens a field in the use of this biotic resource with biotechnological purposes, production of new antibiotics, nutraceuticals and/or production of biofuels.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Ferrante, A., G. Cocetta, M. Alberti, R. Pietricola, and I. Vagge. "Innovative strategies for evaluating stressful conditions in urban environments." Acta Horticulturae, no. 1215 (October 2018): 405–10. http://dx.doi.org/10.17660/actahortic.2018.1215.73.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Zacny, JP, V. Pirec, G. Rupani, P. Thapar, J. Klafia, C. Young, JL Lichtor, and DW Coalson. "Stressful Conditions Affect Acceptance of Nitrous Oxide in Humans." Anesthesiology 81, SUPPLEMENT (September 1994): A46. http://dx.doi.org/10.1097/00000542-199409001-00045.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Phillips-Wren, Gloria, Theresa Jefferson, and Sueanne McKniff. "Cognitive bias and decision aid use under stressful conditions." Journal of Decision Systems 28, no. 2 (April 3, 2019): 162–84. http://dx.doi.org/10.1080/12460125.2019.1643695.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Wang, Zhi-Ping, and Tong Zhang. "Characterization of soluble microbial products (SMP) under stressful conditions." Water Research 44, no. 18 (October 2010): 5499–509. http://dx.doi.org/10.1016/j.watres.2010.06.067.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Ardehali, Reza, Shah R. Ali, Matthew A. Inlay, Adriane R. Mosley, and Irving L. Weissman. "Enhanced survival of pluripotent stem cells under stressful conditions." Cell Cycle 10, no. 16 (August 15, 2011): 2610–11. http://dx.doi.org/10.4161/cc.10.16.16527.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Rai, Nitish, and Sharmistha Dey. "Protective response of Sestrin under stressful conditions in aging." Ageing Research Reviews 64 (December 2020): 101186. http://dx.doi.org/10.1016/j.arr.2020.101186.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Čiamporová, Milada, and Igor Mistrík. "The ultrastructural response of root cells to stressful conditions." Environmental and Experimental Botany 33, no. 1 (January 1993): 11–26. http://dx.doi.org/10.1016/0098-8472(93)90052-h.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Linsky, A. S., M. A. Straus, and J. P. Colby. "Stressful events, stressful conditions and alcohol problems in the United States: a partial test of Bales's theory." Journal of Studies on Alcohol 46, no. 1 (January 1985): 72–80. http://dx.doi.org/10.15288/jsa.1985.46.72.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Dr.Trishu Sharma. "A Study on Indian Journalists and their Stressful Working Conditions." International Journal of Research in Informative Science Application & Techniques (IJRISAT) 1, no. 1 (February 8, 2022): 35–39. http://dx.doi.org/10.46828/ijrisat.v1i1.21.

Повний текст джерела

Анотація:

Journalism is considered as fourth pillar of any democratic society and it is only a Journalist who can take manychallenges to bring truth in front of society. But sometimes journalist has to face difficult and stressful conditionswhile working in field where they have serious threat for their life even. In this paper researcher is trying to explorevarious challenging and stressful conditions of Indian Journalists along with the data which reveals that why Indiais considered a dangerous country for Journalists. Mostly Secondary data is taken to analyze various aspects ofworking Conditions of Journalist. Through this paper the actual dangerous conditions for Indian Journalist will beanalyzed and explored.

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Carruggio, Francesca, Andrea Onofri, Stefania Catara, Carmen Impelluso, Maria Castrogiovanni, Pietro Lo Cascio, and Antonia Cristaudo. "Conditional Seed Dormancy Helps Silene hicesiae Brullo & Signor. Overcome Stressful Mediterranean Summer Conditions." Plants 10, no. 10 (October 7, 2021): 2130. http://dx.doi.org/10.3390/plants10102130.

Повний текст джерела

Анотація:

Investigations on seed biology and ecology are of major importance for the conservation of threatened plants, both providing baseline information and suggesting practical approaches. In our study, we focused on the germination behavior of Silene hicesiae Brullo & Signor., a narrow endemic species to Panarea and Alicudi (Aeolian Archipelago, Italy), as well as one of the 50 most threatened Mediterranean island plants. Specifically, the effects of temperature, light, seed age, seed source, and collection year were evaluated; in addition, threshold temperatures and thermal–time parameters were estimated. The thermal range for fresh seed germination resulted between 5 and 15 °C, reaching up to 20 and 25 °C at increasing seed age, with 30 °C being clearly beyond the ceiling temperature. This behavior indicates that fresh seeds exhibit the Type 1 non-deep physiological dormancy, and that germination is regulated by conditional dormancy. This dormancy syndrome emerged as a highly efficient adaptation strategy for this species and, together with thermo-inhibition, would allow seeds to counteract or take advantage of Mediterranean environmental conditions. The comparison between the wild Panarea population and the corresponding ex situ cultivated progeny has enabled the identification of the latter as a suitable seed source for sustainable in situ reinforcement actions, at least in the short-term; indeed, plant cultivation for a single generation did not produce significant modifications in the germination behavior of the offspring.

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Pasquaud, S., V. David, J. Lobry, M. Girardin, B. Sautour, and P. Elie. "Exploitation of trophic resources by fish under stressful estuarine conditions." Marine Ecology Progress Series 400 (February 11, 2010): 207–19. http://dx.doi.org/10.3354/meps08387.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

26

da Silva Cordeiro, Alexandra, Irenilza de Alencar Nääs, Stanley Oliveira, Fabio Violaro, Andréia de Almeida, and Diego Neves. "Understanding Vocalization Might Help to Assess Stressful Conditions in Piglets." Animals 3, no. 3 (September 12, 2013): 923–34. http://dx.doi.org/10.3390/ani3030923.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Scheneiter, Jorge O., Oscar D. Bertín, and Fernando A. Lattanzi. "Under Stressful Conditions, High Cattle Density Maintains White Clover Abundance." Agronomy Journal 111, no. 3 (March 2019): 1198–207. http://dx.doi.org/10.2134/agronj2018.03.0186.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Ahmed, Beena. "Non-invasive Physiological Monitoring for the Detection of Stressful Conditions." Qatar Foundation Annual Research Forum Proceedings, no. 2011 (November 2011): BMPS9. http://dx.doi.org/10.5339/qfarf.2011.bmps9.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Elnikova, Oksana E., and Irina G. Kolosova. "PSYCHOPHYSIOLOGICAL MARKERS OF PSYCHOLOGICAL READINESS FOR ACTIVITY IN STRESSFUL CONDITIONS." Educational Psychology in Polycultural Space 54, no. 2 (2021): 8–18. http://dx.doi.org/10.24888/2073-8439-2021-54-2-8-18.

Повний текст джерела

Анотація:

The article discusses the influence of inhibitory processes as psychophysiological characteristics that can influence the development of psychological readiness for activity in young men and women in modern stressful conditions. Inhibitory control is considered as a psychophysiological characteristic responsible for cognitive inhibition and suppression of a certain type of behavior. In the study presented in the article, the level of resilience and viability and inhibitory control is recorded. To achieve the goal of the study, the following methods were selected: “Resilience Test” (D.A. Leontiev, E.I. Rasskazova), which is an adaptation of the Hardiness Survey questionnaire, developed by the American psychologist S. Maddi. The use of this method allowed us to deter-mine the respondents ' level of resilience. Since there are a number of studies indicating that re-silience is often due to the viability of a person, we used the method of assessing the quality of life “Sf-36 Health Status Survey”as an auxiliary tool (I.A. Guidarov, V.A. Polessky). The as-sessment of the braking control in the respondents was carried out by means of the reflexometric technique “ReBOS” (author-developer: E.G. Vergunov), which allows us to evaluate the param-eters of both simple and complex sensorimotor reactions. According to the number of errors made during the experimental study, the respondents form a diagnostic opinion about the level of formation of the brake control. The results obtained suggest that not all young men and wom-en who took part in the pilot experimental study have the proper level of resilience and are able to independently build a behavior strategy that allows them to effectively counteract stressful situations. Boys and girls with a low level of resilience demonstrate a low level of formation of brake control, boys and girls who have a higher level of resilience have a more plastic nervous system, which indicates a higher level of formation of brake control. It can be assumed that these students have more pronounced adaptive capabilities in a changing environment.

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Doums, Claudie, Mireille-Ange Perdieu, and Philippe Jarne. "RESOURCE ALLOCATION AND STRESSFUL CONDITIONS IN THE APHALLIC SNAILBULINUS TRUNCATUS." Ecology 79, no. 2 (March 1998): 720–33. http://dx.doi.org/10.1890/0012-9658(1998)079[0720:raasci]2.0.co;2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Yamamoto, Masahira, Shinobu Naga, and Jun Shimizu. "Positive musical effects on two types of negative stressful conditions." Psychology of Music 35, no. 2 (February 15, 2007): 249–75. http://dx.doi.org/10.1177/0305735607070375.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Britt, Thomas W., James M. Dickinson, DeWayne Moore, Carl A. Castro, and Amy B. Adler. "Correlates and consequences of morale versus depression under stressful conditions." Journal of Occupational Health Psychology 12, no. 1 (2007): 34–47. http://dx.doi.org/10.1037/1076-8998.12.1.34.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Trenz, Kristina, Alessia Errico, and Vincenzo Costanzo. "Plx1 is required for chromosomal DNA replication under stressful conditions." EMBO Journal 27, no. 6 (February 28, 2008): 876–85. http://dx.doi.org/10.1038/emboj.2008.29.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Everaerd, Daphne, Floris Klumpers, Guido van Wingen, Indira Tendolkar, and Guillén Fernández. "Association between neuroticism and amygdala responsivity emerges under stressful conditions." NeuroImage 112 (May 2015): 218–24. http://dx.doi.org/10.1016/j.neuroimage.2015.03.014.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Art, T., and P. Lekeux. "Exercise-induced physiological adjustments to stressful conditions in sports horses." Livestock Production Science 92, no. 2 (February 2005): 101–11. http://dx.doi.org/10.1016/j.livprodsci.2004.11.013.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Halim, Lilia, Mohd Ali Samsudin, T. Subahan M. Meerah, and Kamisah Osman. "Measuring Science Teachers’ Stress Level Triggered by Multiple Stressful Conditions." International Journal of Science and Mathematics Education 4, no. 4 (January 4, 2006): 727–39. http://dx.doi.org/10.1007/s10763-005-9020-9.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Thompson, Laura A., Keith L. Williams, and Paul R. L'Esperance. "Context-Dependent Memory under Stressful Conditions: The Case of Skydiving." Human Factors: The Journal of the Human Factors and Ergonomics Society 43, no. 4 (December 2001): 611–19. http://dx.doi.org/10.1518/001872001775870377.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Tyagi, Pradeep K. "The effects on stressful organizational conditions on salesperson work motivation." Journal of the Academy of Marketing Science 13, no. 1-2 (December 1985): 290–309. http://dx.doi.org/10.1007/bf02729721.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Ancelin, Marie-Laure, Joanna Norton, Jacqueline Scali, Karen Ritchie, Isabelle Chaudieu, and Joanne Ryan. "A Prospective Study of Diurnal Cortisol and Incident Dementia in Community-Dwelling Older Adults." Journal of Alzheimer's Disease 82, no. 3 (August 3, 2021): 899–904. http://dx.doi.org/10.3233/jad-210389.

Повний текст джерела

Анотація:

Diurnal salivary cortisol was measured in 334 older adults without dementia, at four times on two separate days, under quiet and stressful conditions. In multivariate Cox proportional hazard models, higher global diurnal cortisol secretion was associated with incident dementia (HR = 1.09 [1.02–1.15] per one-unit increase in cortisol measure, p = 0.007) and Alzheimer’s disease (HR = 1.12 [1.04–1.21], p = 0.003) over a mean (SD) of 8.1 (4.0) years, independent of potential confounders and stressful conditions. Individuals with incident dementia had a slower rate of cortisol elimination under non-stressful conditions, reflected by higher cortisol levels in the evening, and an abnormal response to stress (blunted evening stress response).

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Abujelala, Maher, Rohith Karthikeyan, Oshin Tyagi, Jing Du, and Ranjana K. Mehta. "Brain Activity-Based Metrics for Assessing Learning States in VR under Stress among Firefighters: An Explorative Machine Learning Approach in Neuroergonomics." Brain Sciences 11, no. 7 (June 30, 2021): 885. http://dx.doi.org/10.3390/brainsci11070885.

Повний текст джерела

Анотація:

The nature of firefighters’ duties requires them to work for long periods under unfavorable conditions. To perform their jobs effectively, they are required to endure long hours of extensive, stressful training. Creating such training environments is very expensive and it is difficult to guarantee trainees’ safety. In this study, firefighters are trained in a virtual environment that includes virtual perturbations such as fires, alarms, and smoke. The objective of this paper is to use machine learning methods to discern encoding and retrieval states in firefighters during a visuospatial episodic memory task and explore which regions of the brain provide suitable signals to solve this classification problem. Our results show that the Random Forest algorithm could be used to distinguish between information encoding and retrieval using features extracted from fNIRS data. Our algorithm achieved an F-1 score of 0.844 and an accuracy of 79.10% if the training and testing data are obtained at similar environmental conditions. However, the algorithm’s performance dropped to an F-1 score of 0.723 and accuracy of 60.61% when evaluated on data collected under different environmental conditions than the training data. We also found that if the training and evaluation data were recorded under the same environmental conditions, the RPM, LDLPFC, RDLPFC were the most relevant brain regions under non-stressful, stressful, and a mix of stressful and non-stressful conditions, respectively.

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Ng, Vivian, David Koh, and Andrew Wee. "Salivary Alpha Amylase Levels under Conditions of Extreme Examination Stress." Psychological Reports 103, no. 2 (October 2008): 455–58. http://dx.doi.org/10.2466/pr0.103.2.455-458.

Повний текст джерела

Анотація:

11 healthy adult graduate students were studied on two separate occasions 2 wk. apart at the same time of day. Self-rating of perceived stress and serial measurements of salivary alpha-amylase levels were performed at T1 = 15 min. before, T2 = 1 min. before, T3= 1 min. after, and T4= 15 min. after an event. The events were a highly stressful master's degree oral examination on the first occasion and 15 min. of typing on a computer on the second occasion as a control activity. A kinetic assay was used to estimate salivary alpha-amylase activity. Students rated higher stress on the oral examination day, and their salivary alpha-amylase activity was higher during the oral examination period than on the second less stressful control day.

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Zaleski, Amanda L., Beth A. Taylor, Linda S. Pescatello, and Lawrence E. Armstrong. "Exercising in Stressful Environmental Conditions with Hypertension Versus Normal Blood Pressure." Journal of Clinical Exercise Physiology 7, no. 3 (September 1, 2018): 53–62. http://dx.doi.org/10.31189/2165-6193-7.3.53.

Повний текст джерела

Анотація:

ABSTRACT Hypertension (high blood pressure [BP]) is the most common, costly, and preventable cardiovascular disease risk factor in the world. Regular aerobic exercise is universally recommended as a lifestyle therapeutic intervention for the prevention, treatment, and control of high blood pressure. However, the stressor response to exercise in extreme but commonly experienced stressful environments may be exacerbated in individuals with hypertension, a situation not fully described in the literature. Therefore, we performed a systematic search examining the potential adverse health effects of exercising in hot, humid, cold, or air-polluted environments among adults with hypertension. Studies included adults with hypertension compared to normal BP and that with at least one physiological marker in response to heat, humidity, cold, windchill, or air pollution. The present systematic review revealed few studies that explored differences between individuals with hypertension and normal BP while exercising in commonly experienced stressful environmental conditions. Our preliminary evidence suggests that adults with hypertension may be more vulnerable to adverse cardiovascular stressor responses while exercising in the heat. Future studies are required to better characterize these maladaptive responses to extreme heat or humidity to better identify potential counter-measures for this vulnerable population.

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Amaral, Gabriel da Silva, Ricardo Alcántara-de la Cruz, Flávia Regina da Costa, Cileide Maria Medeiros Coelho, Rafael De Prado, and Leonardo Bianco de Carvalho. "Stressful Conditions Affect Seed Quality in Glyphosate Resistant Conyza bonariensis (L.)." Agronomy 10, no. 11 (November 4, 2020): 1706. http://dx.doi.org/10.3390/agronomy10111706.

Повний текст джерела

Анотація:

Conyza bonariensis (L.) Cronquist is one of the main glyphosate-resistant weeds in no-till fields in Brazil. Here, the seed quality of glyphosate-resistant (R) and -susceptible (S) C. bonariensis biotypes, collected from different sites, was evaluated under stressful conditions by different seed tests. Glyphosate resistance was confirmed by dose-response and shikimate accumulation assays. The resistance factors were 6.9 (R1/S1), 4.5 (R2/S2), and 5.8 (R3/S3). Biotypes S1, S2, and S3 accumulated 2.7, 2.4, and 2.8 times more shikimic acid than biotypes R1, R2, and R3, respectively. Stress-free seed viability and germination potential ranged from 39% to 57% and from 37% to 57%, respectively, with no difference between R and S biotypes within each collection site. Seed incubation at 8 °C over 7 days (cold test) promoted greater germination in S biotypes (54% to 79%) compared to R ones (28% to 39%). In the accelerated aging tests (incubation at 42 °C over 48 hours), the germination decreased in both S (11% to 27%) and R (6% to 16%) biotypes. In the high-temperature stress tests, there were no differences in germination within biotypes at 35 and 45 °C; however, at 60 °C, the germination of the S1, R1, S2, R2, S3, and R3 biotypes was reduced by approximately 51%, 54%, 63%, 59%, 40%, and 30%, respectively. Under non-stressful conditions, germination potential and seed viability were similar in R and S biotypes; however, under cold or heat stress conditions, R biotypes reduced their germination rates, revealing that glyphosate resistance causes a fitness penalty in C. bonariensis at the seed level. However, because seed viability was not determined after experiments, it cannot be stated that such reduction in germination was due to the death or only a dormant phase of the seeds.

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Martínez-Guardado, Ismael, Silvia Arboleya, Francisco Javier Grijota, Aleksandra Kaliszewska, Miguel Gueimonde, and Natalia Arias. "The Therapeutic Role of Exercise and Probiotics in Stressful Brain Conditions." International Journal of Molecular Sciences 23, no. 7 (March 25, 2022): 3610. http://dx.doi.org/10.3390/ijms23073610.

Повний текст джерела

Анотація:

Oxidative stress has been recognized as a contributing factor in aging and in the progression of multiple neurological disorders such as Parkinson’s disease, Alzheimer’s dementia, ischemic stroke, and head and spinal cord injury. The increased production of reactive oxygen species (ROS) has been associated with mitochondrial dysfunction, altered metal homeostasis, and compromised brain antioxidant defence. All these changes have been reported to directly affect synaptic activity and neurotransmission in neurons, leading to cognitive dysfunction. In this context two non-invasive strategies could be employed in an attempt to improve the aforementioned stressful brain status. In this regard, it has been shown that exercise could increase the resistance against oxidative stress, thus providing enhanced neuroprotection. Indeed, there is evidence suggesting that regular physical exercise diminishes BBB permeability as it reinforces antioxidative capacity, reduces oxidative stress, and has anti-inflammatory effects. However, the differential effects of different types of exercise (aerobic exhausted exercise, anaerobic exercise, or the combination of both types) and the duration of physical activity will be also addressed in this review as likely determinants of therapeutic efficacy. The second proposed strategy is related to the use of probiotics, which can also reduce some biomarkers of oxidative stress and inflammatory cytokines, although their underlying mechanisms of action remain unclear. Moreover, various probiotics produce neuroactive molecules that directly or indirectly impact signalling in the brain. In this review, we will discuss how physical activity can be incorporated as a component of therapeutic strategies in oxidative stress-based neurological disorders along with the augmentation of probiotics intake.

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Doums, Claudie, Mireille-Ange Perdieu, and Philippe Jarne. "Resource Allocation and Stressful Conditions in the Aphallic Snail Bulinus truncatus." Ecology 79, no. 2 (March 1998): 720. http://dx.doi.org/10.2307/176965.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Alboni, S., M. van Dijk, S. Poggini, G. Milior, ML Perrotta, T. Drenth, N. Brunello, et al. "Hippocampus-related effects of fluoxetine treatment under stressful vs enriched conditions." Molecular Psychiatry 22, no. 4 (March 23, 2017): 483. http://dx.doi.org/10.1038/mp.2017.69.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

47

LI, Jian, Natalia WEGE, Adrian LOERBROKS, and Natalie RIEDEL. "Does cognitive function predict changes in perception of stressful working conditions?" Industrial Health 58, no. 1 (2020): 72–77. http://dx.doi.org/10.2486/indhealth.2019-0017.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Galeazzi, F., M. G. Lucá, G. Mastropaolo, and Remo Naccarato. "Increased oesophageal sensitivity to distension during physical and mental stressful conditions." Gastroenterology 108, no. 4 (April 1995): A603. http://dx.doi.org/10.1016/0016-5085(95)26725-5.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Cao, Sha, Yi Zhou, Yue Wu, Tianci Song, Burair Alsaihati, and Ying Xu. "Transcription regulation by DNA methylation under stressful conditions in human cancer." Quantitative Biology 5, no. 4 (November 23, 2017): 328–37. http://dx.doi.org/10.1007/s40484-017-0129-y.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Marasco, Valeria, Winnie Boner, Britt Heidinger, Kate Griffiths, and Pat Monaghan. "Repeated exposure to stressful conditions can have beneficial effects on survival." Experimental Gerontology 69 (September 2015): 170–75. http://dx.doi.org/10.1016/j.exger.2015.06.011.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!