22,474 research outputs found
The influence of storing high moisture-content rough rice on milling quality
The objective of this research was to determine the influence on drying characteristics of storing high-moisture content (MC) rough rice under various conditions and durations before drying. Two cultivars of rice, \u27Bengal\u27, a medium-grain cultivar, and \u27Cypress\u27, a long-grain cultivar, were used. The MC of \u27Bengal\u27 was 24.8%1 and that of \u27Cypress\u27 was 20.4% at harvest. Immediately after harvest, drying runs were performed with samples of both cultivars under two drying air conditions: one at 51.7°C (125°F) and 25% relative humidity (RH), and the other at 60°C (140°F) and 17% RH. Storage treatments using the high MC rice were also initiated immediately after harvest. Both cultivars of rough rice were stored for one month (i.e., 27 d) and three months (i.e., 76 d) in either a walkin freezer at –9°C (15°F), a household refrigerator at 3.5°C (38.3°F) or a walk-in cooler at 4°C (38.5°F). After one month and three months of storage, all samples were dried under the same two drying air conditions as at harvest. The head rice yield (HRY) was determined for all the dried samples. There were no differences in the HRYs of samples that were stored for one or three months and then dried and in those HRYs of samples dried immediately after harvest; this finding was consistent across the three storage temperatures for both cultivars. The trends in HRY reduction were similar to previously reported drying trials using these drying air conditions. This research indicates that it is possible to store rough rice at high MCs for up to three months under storage temperatures varying from –9°C to 4°C without affecting HRY
On the genesis of spike-wave oscillations in a mean-field model of human thalamic and corticothalamic dynamics
The effect of a cardiovascular risk factor education program on health behaviors of selected school age children
This study, using a quasi-experimental design, was conducted to explore the effect of a cardiovascular risk factor education program on the health behaviors of a group of fifth grade children. The following hypothesis was tested:
There will be a statistically significant improvement in self-reported health behaviors of school age children who receive a cardiovascular risk factor education program as compared to the self-reported health behaviors of those school age children who do not receive a cardiovascular risk factor education program.
One hundred and nineteen subjects, 63 in the experimental group and 56 in the control group, were tested using the researcher\u27s designed health behavior questionnaire, My Health Behaviors , before and after participation in the health education program. The program provided for the experimental group consisted of eight 45 minute sessions. The introductory and summary sessions were primarily concerned with administration of the pretest and post-test and sessions two through seven were informative sessions about high fat, high cholesterol diet, smoking and sedentary lifestyle. The program provided for the control group consisted of four 45 minute sessions; session one was concerned with introductory material and administration of the pre-test, sessions two and three were informative sessions related to general nutrition and foods high in salt and sugar, and session four was devoted to review of content as well as administration of the post—test.
Data were statistically analyzed using the paired-sample student\u27s t-test. Results of the analysis revealed a significant difference between the two sample groups at p\u3c0.01 level. The hypothesis was accepted
Normative values for the profile of mood states for use with athletic samples
The Profile of Mood States (POMS) has been used extensively for the assessment of mood in the sport and exercise environments. The purpose of the study was to develop tables of normative values based on athletic samples. Participants (N = 2,086), comprising athletes at the international (n = 622), club (n = 628), and recreational (n = 836) levels, completed the POMS in one of three situations: pre-competition/exercise, post-competition/exercise, and away from the athletic environment. Differences between the athletic sample and existing norms were found for all mood subscales. Main effects of level of competition and situation were identified. The results support the proposition that the use of the original tables of normative values in sport and exercise environments is inappropriate
Smoking Behaviors and Abstinence in Low-Income Pregnant Women
Background: Despite efforts to educate individuals about the hazards of smoking, pregnant women continue to smoke. In the literature, there is less evidence about successful abstinence strategies for low-income women. The purpose of this pilot study was to assess smoking behaviors and factors that support smoking abstinence in low-income pregnant women.
Methods: Using a longitudinal design, quantitative and qualitative data were collected from pregnant women at a low-income community prenatal clinic. Based on the Transtheoretical model, all subjects received information about the harmful effects of smoking and secondhand exposure, while current smokers were given a “quit kit” and contacted up to one year post-delivery to evaluate smoking behaviors.
Results: All subjects (N = 135) ranged in age from 18 to 41; 75% were not married; 78% had household incomes \u3c $30,000; and the majority were African American (40%). Fifty-five (40.7%) never smoked while 77(57%) had a smoking history, of these 18(23%) were spontaneous quitters. Data indicated that 36% reported smoking during pregnancy, with the majority in pre-contemplation. After one year, 18% of current smokers quit.
Conclusions: Without a specific plan, the majority were unable to successfully abstain. Rate of abstinence may have been further influenced because subjects began smoking at an early age and were unsuccessful at previous quit attempts. Providers must continue to educate pregnant women but also evaluate strategies that require few provider visits, are cost effective, focus on relapse prevention, and can successfully influence smoking abstinence in low-income pregnant women
Regulation of securities markets : some recent trends and their implications for emerging markets
Recent rapid changes in the world economy, particularly the transformation of command economies into free market economies in many places around the world, can be expected to lead to an increase in the number of newly created securities markets through the 1990s. This follows a decade of unprecedented change in the world's securities markets. In the 1990s, it is expected that increased attention will be given to newly established and emerging securities markets as a result of the historic movement toward free market economies in central Europe and the Soviet Union and the need for more efficient capital markets to support the expanding role of the private sector in many developing countries around the world. Given the importance of the regulatory environment to capital market development, this paper focuses on the regulatory issues. It examines the interplay between regulation and market efficiency and reviews recent development in regulation, paying particular attention to the experience in the Korean market in the 1980s.Environmental Economics&Policies,Insurance&Risk Mitigation,Insurance Law,Markets and Market Access,Financial Intermediation
The Unresolved Land Reform Debate: Beyond State-Led or Market-Led Models
Land Reform; Debate; State-Led; Market-Led; Model
Systems thinking research - principles and methodologies to grapple with complex real world problems
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