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Search Results: 1 - 10 of 3438 matches for " Ruth Wetta "
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Turning Research into Action: Using Factor Analysis to Enhance Program Evaluation  [PDF]
Ruth Wetta, Lisette T. Jacobson, Frank Dong
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.34038
Abstract:

Purpose: Sexual activity among adolescents in the United States remains high. Nearly 46% of students grades 9-12 have engaged in sexual intercourse. One of the more recent statistical tools employed in evaluation efforts includes factor analysis. The objective of this study was to investigate the underlying dimensions of a survey instrument that assesses a youth character development program, which focuses on avoiding high-risk behaviors. Method: The 76-item survey instrument was administered to adolescents (age 12-18). During the 2009-2010 school year, 652 participants in the intervention group and 1110 participants in the comparison group completed the pre-, post-, and 6-month follow-up survey. Results: Using Ajzen’s theory of planned behavior groupings, 27 survey items were selected. Through iterative principal axis factoring, four factors were extracted and rotated. A visual scree plot was generated to determine the number of acceptable factors. The extracted factors accounted for 52.53% of the total variance. Factors were subjected to Equimax rotation with Kaiser normalization and converged after six iterations. Variables with patterned weights less than 0.44 were excluded. A reliability analysis demonstrated internal consistency. Conclusions: Identified factors included: 1) Teenagers’ attitudes toward sexual health behaviors; 2) Teenagers’ perceptions of the consequences of sexual health behaviors; 3) Parental or guardian expectations; and 4) Teenagers’ relationships with parents or guardians. This study’s results indicated that all factors can be described within Ajzen’s theoretical framework consistent with previous research findings. Results may be used to enhance delivery of the intervention.

Leadership and Faith in a School Tragedy: A School Principal’s Perspective  [PDF]
Ruth Tarrant
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.55051
Abstract:

On April 15, 2008, six students (aged 16 years) and one teacher (aged 29 years) from a New Zealand school lost their lives in a river canyoning tragedy. The present study investigated the school principal’s perspective of how he led his school through the tragedy, and the role of faith in the school’s coping. The school principal was interviewed two years after the event. The school’s Christian foundation was the fundamental source of strength and guidance for the principal, as well as for students, staff, teachers, and families in the immediate aftermath of the tragedy and in the two years following (i.e., to the time of the present study), the Christian culture of the school guiding decision-making. Support from outside the school (e.g. critical incident support; teaching support from other schools; social support from community agencies and civic leaders) also played an important role in assisting the school through the tragedy, particularly in the immediate aftermath of the event. Further studies are required that allow the voices of children, families and school staff to be heard regarding leadership strategies that impact on them through a disaster.

Study of Configural Reasoning and Written Discourse in Geometric Exercises of Proving  [PDF]
Ruth Cueva
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.42007
Abstract:

This article presents a study of configural reasoning and written discourse developed by students of the National Polytechnic School of Ecuador when performing geometrical exercises of proving.

Restoring Washed Out Bridges so ELearners Arrive at Online Course Destinations Successfully  [PDF]
Ruth Gannon Cook
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.34083
Abstract: This study researched the impact of strategic navigation improvements in an online course selected for the study over one quarter (12 weeks) at a large Midwestern private university. The primary purpose of the study was to see if navigation enhancements and specific graphic enhancements (semiotic tools) in the online course selected for the study could make it easier for adult students to learn new course materials. The study also sought to see if these factors could contribute to increased positive learning experiences and to see whether there might be a higher percentage of completion rates in this enhanced online course than in other online courses at the university. While not generalizable, the findings could provide inferences about which factors could positively influence adult learning in online courses and contribute to increased course completion rates; the study could also provide recommendations on graphic enhancements and online course navigation that positively influence student learning in online courses.
Therapeutic MUC1-Based Cancer Vaccine Expressed in Flagella-Efficacy in an Aggressive Model of Breast Cancer  [PDF]
Nathalie Machluf, Ruth Arnon
World Journal of Vaccines (WJV) , 2012, DOI: 10.4236/wjv.2012.23015
Abstract: MUC1, a tumor-associated antigen overexpressed in many carcinomas, represents a candidate of choice for cancer immunotherapy. Flagella-based MUC1 vaccines were tested in therapeutic setting in two aggressive breast cancer models, comprising the implantation of the 4T1-MUC1 cell line in either Balb/c, or Human MUC1 transgenic mice in which spontaneous metastases occurs. Recombinant flagella carrying only 7 amino acid of MUC1 elicited therapeutic activity, affecting both the growth of established growing tumors and the number of metastases. Higher therapeutic activity was achieved with an additional recombinant flagella designed with the SYFPEITHI algorithm. The vaccines triggered a Th1 response against MUC1 with no evident autoimmune response towards healthy MUC1-expressing tissues. Recombinant flagella carrying a 25-residue fragment of MUC1, induced the most effective response, as evidenced by a significant reduction of both the size and growth rate of the tumor as well as by the lower number of metastases, and expanding life span of vaccinated mice.
Two male study groups with adiposity and hypertriglyceridemia were at risk for hypertension and alcohol use declined renal endothelium  [PDF]
Ruth-Maria Korth
Health (Health) , 2012, DOI: 10.4236/health.2012.412A201
Abstract:


Men who attended a Bavarian General Medicine Practice were confidentially invented here. Two male study groups were enrolled to characterize adiposity or hypertriglyceridemia showing that these men were at baseline risk for hypertension [1]. Adverse alcohol consumption mediated dysfunction of renal endothelium as shown here and before [1]. This study found that alcohol use aggravated dyslipidemia, fatty liver disease and critical fasting blood glucose of obese men predicting then late hepatorenal disorders. Overall, two male study groups showed a relevant proportion of men who reported alcohol consumption showing then critical morning urines indicating dysfunction of renal endothelium. The present report looked also at healthy men who reported positive lifestyle behaviour and at men with nonalcohol adiposity and nonalcohol hypertriglyceridemia who then showed normal morning urines indicating functional renal endothelium. Relatively young men at risk were motivated to replace adverse alcohol use by healthy liquids without alcohol and by higher quality of food.


Understanding the individual with Alzheimer’s disease: Can socioemotional selectivity theory guide us?  [PDF]
Ruth E. Mark
Advances in Alzheimer's Disease (AAD) , 2012, DOI: 10.4236/aad.2012.13010
Abstract: Individuals often get lost behind the diagnosis of Alzheimer’s disease (AD) while widespread differences between these patients are morecommon than similarities. Socioemotional Selectivity Theory (SST) suggests that as we age our goals change from future-oriented (acquiringnew information) to present-oriented (enhancing the emotional, especially positive, meaning of encounters). The goal of the current article is to examine whether the principles of SST might also apply for people with AD. Some aspects of SST are found especially in the early stages of AD when awareness is often intact and cognitive impairment is relatively limited. This review has clinical significance for the treatment of AD because it focuses on what is important to the individual rather than treating patients as a homogenous group. It also highlights the importance of social networks and emphasizes the role of the proxy in AD care. Lastly, it suggests that if those with AD (like the healthy elderly) have a positivity bias then positive emotional stimuli/wording/instructions could usefully be employed in their daily treatment. I suggest that SST may be a useful starting point when attempting to address what matters to individuals with AD and conclude by providing a few suggestions for future studies.
Women with overweight, mixed hyperlipidemia, intolerance to glucose and diastolic hypertension  [PDF]
Ruth-Maria Korth
Health (Health) , 2014, DOI: 10.4236/health.2014.65064
Abstract: Primarily healthy women who attended a practice of General Medicine were examined and coded data were evaluated using two statistical methods (n = 248, aged 36 ± 14 years). It was found that participants with LDL-related (mixed) hyperlipidemia showed higher blood pressure, a higher proportion of alcohol problems and/or smoking compared to normolipidemic women (p ≤ 0.05). These hyperlipidemic women who reported alcohol problems and/or smoking more often showed proteinuria and/or hematuria, rise of LDL/HDL, critical fasting blood glucose and lower HDL-cholesterol compared to hyperlipidemic women reporting healthy lifestyle (p ≤ 0.05). Likewise, high triglycerides were associated with rise of blood pressure and intolerance to glucose (p ≤ 0.05) and also with elevated total cholesterol. Alcohol-related hypertriglyceridemia overlapped with diastolic hypertension, rise of body weight and urine pathology, lowering of HDL-cholesterol and critical fasting blood glucose. The motivating message was that women with mixed hyperlipidemia and healthy lifestyle had functionally renal endothelium and healthy HDL-related baseline measures. Altogether, LDL-related hyperlipidemia and/or high triglycerides were correlated with diastolic hypertension whereby critical alcohol consumption declined renal endothelium and lowered HDL-cholesterol implicating baseline strategies to neutralize early risk factors.
LDL-Related Intolerance to Glucose, Diastolic Hypertension and Additive Effects of Smoking Were Found with Three Female Study Groups  [PDF]
Ruth-Maria Korth
Health (Health) , 2016, DOI: 10.4236/health.2016.83026
Abstract: Initial prodiabetic risk profiles were invented here with three female study groups consisting of primarily healthy women (A1: 1990-1999, n = 160; A2: 2009, n = 88; A: n = 248, 36 ± 14 years; B: 2014: n = 65, aged 37± 11 years). Significantly higher blood pressure was found comparing intolerance versus tolerance to glucose (p < 0.05, IGTT, 22 of 68). High LDL-cholesterol (LDL-C) showed additive effects as LDL-related intolerance was further related with rise of blood pressure (p < 0.05), of triglycerides (p = 0.02), of fasting blood glucose (p = 0.07) and of urine pathology (p = 0.07). High LDL-C of women who reported smoking at baseline was correlated with diastolic hypertension whereby alcohol problems overlapped (p = 0.036, A). Unhealthy combinations were found consisting of LDL-related intolerance to glucose, LDL-related smoking, of alcohol-related hypertriglyceridemia or of combined drinking and smoking testing urine pathology over the course of time. Obese women were at direct risk for hypertension in the presence of high LDL-C and submaximal ratio of serum albumin to triglycerides (Alb/Trig). Obese women reacted highly sensitive to critical alcohol consumption showing then macroalbuminuria. Current participants who disowned daily alcohol consumption showed healthy morning urines and normal fasting blood glucose. Mild decrease of HDL-C was observed during heavy smoking of relatively young women who had normal biomarkers. Women with intolerance to glucose were at direct risk for hypertension whereby high LDL-C and/or smoking triggered prodiabetic risk profiles. Obese women had elevated LDL-C during hypertension and reacted highly sensitive to alcohol-related proteinuria and/or hematuria.
Groundwater Recharge Through Infiltration Process: A Case Study of Umudike, Southeastern Nigeria  [PDF]
M. U. Igboekwe, Adindu Ruth
Journal of Water Resource and Protection (JWARP) , 2011, DOI: 10.4236/jwarp.2011.35037
Abstract: Although water is a renewable resource for sustaining life and environment, excessive pumping of groundwater results in the ground water table being depleted. The major natural source of groundwater recharge is rainfall. In Umudike just like many other areas, the rate of natural recharge is lower than pumping rate. This is due to increasing economic and agricultural activities and also urbanization. Over exploitation of groundwater is a threat to the water quality and table and creates hydrological imbalance. This imbalance includes degradation in hydrological and hydro-chemical characteristics of the aquifer. Artificial recharge of water table aquifers becomes necessary to improve the hydrodynamic conditions of groundwater. A drop in piezometric level can be remedied by artificial recharge of groundwater through infiltration process using water from dams, lakes, rivers, runoff and sewage effluent. Results of water table survey conducted at Umudike show that it peaks at 85m (above sea level) before recharge and 95m after recharge. The recharge of groundwater is basically through rainfall and river water.
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