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1.
Traditionally the use of inappropriate technologies in the developing countries has been explained by the existence of factor price distortions, e.g. the price of labor being artificially raised by labor legislation, and the price of capital being reduced by subsidies and unrealistic exchange rates. In reality the technological choice is often determined by economic conditions and the local sociocultural/political conditions. The institutional framework of the country may discourage the appropriate technology. The obstacles can be overcome when the following conditions are met: 1) a national consensus about the need for development efforts and importance of policy goals; 2) promising market prospects and/or an effective marketing system; and, 3) sufficient industrial competition in both home and international markets. Institutional problems come from the generation and diffusion of technologies from the supply side which are introduced to people who do not see the need for them. More emphasis on the marketing side ususally results in application of correct technology, especially where governments fund research and development projects and formulate their plans on the basis of a concrete investment or production plan and a clear idea about the target market. Land reforms and agricultural price policies are needed as well as the establishment of an efficient national administrative network.  相似文献   
2.
British data from the early 1700s through World War I reflect the results of numerous high‐quality natural experiments of government spending. Britain frequently participated in wars, increasing military spending massively. Wartime distortions were relatively limited because the government generally adopted tax smoothing policy and rarely implemented interventions. Government spending multiplier estimates are low or negative and significantly below unity. This paper finds no evidence that the multiplier was higher in the slack state than in the normal state. (JEL E32, E62)  相似文献   
3.
This paper, which is authored by members of the Japanese Association of Family Therapy (JAFT), describes the COVID‐19 pandemic in Japan from a family systems perspective. The authors are active members of JAFT and include current and past presidents and officers. We describe the course of the pandemic and the ways in which government policies to mitigate the pandemic have affected Japanese families. Challenges that affect Japanese families include the inability to participate in family and social rituals, prescribed gender roles that specifically affect women, high suicide rates, and prejudice against those who are at risk of spreading the infection. The need to shelter in place has also forced family homes to function as a workplace for parents, classrooms for children, and day care services for frail elders, which has resulted in psychological distress among individuals and conflicts among families. We discuss ways that therapists have worked with Japanese families using online therapy.  相似文献   
4.
The Physical Activity Questionnaire for Elderly Japanese (PAQ-EJ) is a self-administered physical activity questionnaire for elderly Japanese; the authors report here on its repeatability and direct and indirect validity. Reliability was assessed by repeat administration after 1 month. Direct validation was based on accelerometer data collected every 4 s for 1 month in 147 individuals age 65-85 years. Indirect validation against a 10-item Barthel index (activities of daily living [ADL]) was completed in 3,084 individuals age 65-99 years. The test-retest coefficient was high (r = .64-.71). Total and subtotal scores for lower (transportation, housework, and labor) and higher intensity activities (exercise/sports) were significantly correlated with step counts and durations of physical activity <3 and >or=3 METs (r = .41, .28, .53), respectively. Controlling for age and ADL, scores for transportation, exercise/sports, and labor were greater in men, but women performed more housework. Sex- and ADL- or age-adjusted PAQ-EJ scores were significantly lower in older and dependent people. PAQ-EJ repeatability and validity seem comparable to those of instruments used in Western epidemiological studies.  相似文献   
5.

Background

Since age-related muscle strength loss cannot be explained solely by muscle atrophy, other determinants would also contribute to muscle strength in elderly. The present study aimed to clarify contribution of neuromuscular activation pattern to muscle strength in elderly group. From 88 elderlies (age: 61~?83 years), multi-channel surface electromyography (EMG) of the vastus lateralis muscle was recorded with two-dimensional 64 electrodes during isometric submaximal ramp-up knee extension to assess neuromuscular activation pattern. Correlation analysis and stepwise regression analysis were performed between muscle strength and the parameters for signal amplitude and spatial distribution pattern, i.e., root mean square (RMS), correlation coefficient, and modified entropy of multi-channel surface EMG.

Results

There was a significant correlation between muscle strength and RMS (r =?0.361, p =?0.001) in the elderly. Muscle thickness (r =?0.519, p <?0.001), RMS (r =?0.288, p?=?0.001), and normalized RMS (r =?0.177, p =?0.047) were selected as major determinants of muscle strength in stepwise regression analysis (r?=?0.664 in the selected model).

Conclusion

These results suggest that inter-individual difference in muscle strength in elderly can be partly explained by surface EMG amplitude. We concluded that neuromuscular activation pattern is also major determinants of muscle strength on elderly in addition to indicator of muscle volume.
  相似文献   
6.
7.
In April 2013, all of the major academic publishing houses moved thousands of journal titles to an original hybrid model, under which authors of accepted papers can choose between an expensive open access (OA) track and the traditional track available only to subscribers. This paper argues that authors might now use a publication strategy as a quality signaling device. The imperfect information game between authors and readers presents several types of Perfect Bayesian Equilibria, including a separating equilibrium in which only authors of high-quality papers are driven toward the open access track. The publishing house should choose an open-access publication fee that supports the emergence of the highest return equilibrium. Journal structures will evolve over time according to the journals’ accessibility and quality profiles.  相似文献   
8.

Background

A low urine pH is a characteristic metabolic feature of metabolic syndrome and type 2 diabetes. The purpose of the current study was to investigate the effects of a 12-week home-based bench step exercise on the urine pH status of elderly female subjects.

Methods

The current study is a secondary analysis of a randomized controlled trial (RCT) in which 59 postmenopausal female subjects were randomized to either the exercise group (n?=?29) or the control group (n?=?30). The subjects in the exercise group were instructed to perform home-based exercises using a bench step at the anaerobic threshold (AT), with a goal of performing ≥140 min/week at home for 12 weeks. The subjects in the control group were instructed to not change their normal lifestyle. Urine was collected after overnight fasting, and the urine pH was measured using a urinary test strip. The inter-group-differences at baseline and the pre-post changes within groups were assessed using the Mann-Whitney U test and Wilcoxon’s signed-rank test, respectively. Additionally, the difference in the post-intervention urine pH levels of the two groups, adjusted for the pre-intervention values (the estimated effect size) and the precision (95% confidence intervals) were investigated using an analysis of covariance.

Results

The pre-post comparison of the urine pH data using Wilcoxon’s signed-rank test showed a significant increase in the urine pH levels of the exercise group (p?<?0.05); there was no significant change in the urine pH levels of the control group. However, the estimated effect size (0.15) was small and the confidence interval straddled 0 (?0.25–0.55).

Conclusions

Based on the results of the current secondary analysis of an RCT, we could not clearly conclude that exercise has a beneficial effect on the urine pH. Further well-designed RCTs should be conducted to determine whether aerobic exercise is truly able to ameliorate urine acidification.

Trial registration

The study was retrospectively registered in the University Hospital Medical Information Network (UMIN) as “Effect of step exercise on aerobic fitness and progression of atherosclerosis in the elderly” under the registration number UMIN 000026743 (the date of registration: March 28, 2017).
  相似文献   
9.
10.
There is currently a growing research and clinical knowledge base regarding the application of Eastern traditions, especially mindfulness and other forms of meditation, to direct practice. As we incorporate new tools for intervention into our toolkit, it is important to expand our theoretical framework so that we can know when to utilize these tools, how their mechanism fits with the tools we already have, and what kinds of change or outcomes we should expect from utilizing them. These new tools are powerful across many experiences of distress, but clear guidelines are necessary to maximize their benefit. Berlin’s cognitive-integrative perspective provides a framework that allows for reflective understanding and application of mind/body/spirit that is consistent with social work values and what we currently know about the underlying science of mind. Using concrete examples from direct practice, this paper will lay out the framework that is consonant with Siegel’s interpersonal neurobiology, discussed in this volume, and also firmly rooted in the person-in-environment perspective that is characteristic of social work.  相似文献   
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