scholarly journals Optimal time allocation in active retirement

2019 ◽  
Vol 28 (2) ◽  
pp. 401-424 ◽  
Author(s):  
Miguel Sánchez-Romero ◽  
Alexia Prskawetz
Keyword(s):  
Physical Activity ◽  
Life Expectancy ◽  
Time Allocation ◽  
Social Engagement ◽  
Optimal Time ◽  
Knowledge Stock ◽  
Scientific Publications ◽  
Trade Off ◽  
Set Up ◽  
Alternative Settings

AbstractWe set up a lifecycle model of a retired scholar who chooses optimally the time devoted to different activities including physical activity, continued work and social engagement. While time spent in physical activity increases life expectancy, continued scientific publications increases the knowledge stock. We show the optimal trade off between these activities in retirement and its sensitivity with respect to alternative settings of the preference parameters.

scholarly journals The Role of Physical Activity in Cancer Survivors’ Quality of Life

2020 ◽  
Author(s):  
Tayah M. Liska ◽  
Angie Kolen
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Cancer Survivors ◽  
Cancer Treatment ◽  
Cancer Diagnosis ◽  
Social Engagement ◽  
Healthcare Providers ◽  
Adult Cancer Survivors

Abstract Purpose: As a result of a cancer diagnosis and treatment, many cancer survivors experience persistent physical, mental, and emotional symptoms that affect their quality of life. Physical activity has been identified as an intervention that may help to manage the side effects of a cancer diagnosis and its treatment. The purpose of this study was to investigate the role of physical activity on overall quality of life in adult cancer survivors. Methods: One-on-one semi structured interviews were conducted in person or via telephone with 13 adult (≥18 yrs) cancer survivors who had completed cancer treatment. Results: These cancer survivors described their physical activity as improving their physical functioning and mental health, as a means of positive social engagement, and adding positivity to their daily life. Conclusion: These results support the role of physical activity to enhance cancer survivors’ quality of life regardless of the individuals’ treatment(s) type, duration, or time since the end of active cancer treatment. Further research is warranted to (a) expand this research with a larger sample, (b) examine healthcare providers’ knowledge and application of exercise guidelines to cancer survivors in cancer care, and (c) explore implementation strategies for greater advocacy for healthcare providers to share the exercise recommendations with cancer survivors.

scholarly journals A study to set-up a technological process for purification of Zinc scraps by using liquation method

2021 ◽  
Vol 8 (1) ◽  
pp. 36-43
Author(s):  
Ngoc Vuong Tran ◽  
Manh Hung Luong ◽  
Dinh Dang Nguyen
Keyword(s):  
Zinc Oxide ◽  
Raw Materials ◽  
Time Factors ◽  
Pilot Scale ◽  
Raw Material ◽  
Optimal Time ◽  
Fe Content ◽  
Technology Process ◽  
Zn Content ◽  
Set Up

Zinc scrap is a source of raw material for zinc oxide production. However, to qualify the requirement of raw material for zinc oxide (99.5%) production, refining this source is needed. Many methods are considered such as rectification, chemical method, etc., but difficult to apply on an industrial scale. This workfocused on the investigation of the influence of temperature and time factors for asessing the possibility of applying liquation method for the purification of impurities from scrap zinc.The experiment results show that the optimum temperature of liquation to remove Pb,Fe from zinc scrap is in the range of 440-450°C, the optimal time of the process is 8h for the pot with 8cm in height and 6cm in diameter (the quantity of raw zinc sample is about 2kg / batch), then we can obtain about 80% of zinc metal with an average Zn content of about 97, 0%, both Pb and Fe content decreased to a range from 0.35 to 0.4%, and 1.0 to 1.1%, respectively, which meet the requirement of raw materials for the production of high quanlity ZnO ( 99,5 %). Based on the parameters obtained on lab-scale, a trial on pilot scale of 250 kg / batch was conducted, The result confirms that the quality of the products meets the requirement of raw materials for production of high quality ZnO (99.5%) and a technology process for refining zinc scrap by the liquation was proposed.

scholarly journals ANALYSIS OF DETERMINANTS OF PRIMARY SCHOOL CHILDREN’S PHYSICAL ACTIVITY INCLUDING INTERNATIONAL EXPERIENCE

2020 ◽  
Vol 2020 (70) ◽  
pp. 108-117
Author(s):  
S.V. Hozak ◽  
◽  
O.T. Yelizarova ◽  
T.V. Stankevich ◽  
A.M. Parats ◽  
...  
Keyword(s):  
Physical Activity ◽  
Primary School ◽  
Integrated Approach ◽  
Activity Level ◽  
Primary School Children ◽  
Active Lifestyle ◽  
Scientific Publications ◽  
Analytical Review ◽  
The Media ◽  
Primary School Age

The aim of research was to fulfill an analytical review of original scientific publications including foreign experience that determine the factors of influence on physical activity level of children of primary school age. Methods. Structural and logical analysis method, semantic bibliography method. Results. It was found that only an integrated approach can significantly affect the increase on the level of children`s physical activity. Both modifying public policy and the environment for children with intervention through the involvement of the media space, parents and collaboration of specialists from different related areas can really contribute to the active lifestyle of primary school children.

scholarly journals Cumulative Effects of Physical Activity, Dietary Variety, and Social Participation on Active Life Expectancy

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 186-186
Author(s):  
Satoshi Seino ◽  
Akihiko Kitamura ◽  
Yui Tomine ◽  
Mariko Nishi ◽  
Yu Nofuji ◽  
...  
Keyword(s):  
Physical Activity ◽  
Life Expectancy ◽  
Social Participation ◽  
Influential Factors ◽  
Regular Physical Activity ◽  
Cumulative Effects ◽  
Active Life Expectancy ◽  
Term Care ◽  
Dietary Variety ◽  
Active Life

Abstract Regular physical activity, dietary variety, and active social participation are modifiable and influential factors of adverse health outcomes. However, the cumulative effects of these behaviors are unknown. We examined these cumulative associations with active life loss in older adults. We analyzed 3-year longitudinal data from 7246 initially non-disabled residents aged 65-84 years from 18 districts of Ota City, Tokyo. Sufficiency of moderate- to vigorous-intensity physical activity (MVPA) of ≥150 minutes/week, dietary variety score (DVS) of ≥3, and social participation of ≥1 time/month were assessed using self-administered questionnaires. We operationally defined active life loss for individuals as being newly certified for long-term care insurance or death without prior certification. Multilevel survival analyses were applied to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). During an average follow-up of 2.9 years, the cumulative incidence of active life loss was 11.3% (817 individuals: 650 new certifications and 167 deaths without prior certification). Multivariate-adjusted HRs (95% CIs) for active life loss were 0.73 (0.58-0.92) in only MVPA of ≥150 minutes/week, 0.88 (0.67-1.15) in only DVS of ≥3, 0.75 (0.51-1.09) in only social participation of ≥1 time/month, 0.56 (0.45-0.70) in the group satisfying any two, and 0.52 (0.40-0.67) in the group satisfying all three behaviors, compared with a reference group that did not satisfy any of the behaviors. Sensitivity analysis that excluded active life losses during the first year showed similar results. The combination of regular physical activity, dietary variety, and social participation further enhances the effects on active life expectancy than individual practices.

Sign in / Sign up

Export Citation Format

Share Document