Imbalanced Learning for Functional State Assessment
NASA Technical Reports Server (NTRS)
Li, Feng; McKenzie, Frederick; Li, Jiang; Zhang, Guangfan; Xu, Roger; Richey, Carl; Schnell, Tom
2011-01-01
This paper presents results of several imbalanced learning techniques applied to operator functional state assessment where the data is highly imbalanced, i.e., some function states (majority classes) have much more training samples than other states (minority classes). Conventional machine learning techniques usually tend to classify all data samples into majority classes and perform poorly for minority classes. In this study, we implemented five imbalanced learning techniques, including random undersampling, random over-sampling, synthetic minority over-sampling technique (SMOTE), borderline-SMOTE and adaptive synthetic sampling (ADASYN) to solve this problem. Experimental results on a benchmark driving lest dataset show thai accuracies for minority classes could be improved dramatically with a cost of slight performance degradations for majority classes,
Disordered Eating in Women of Color.
ERIC Educational Resources Information Center
Root, Maria P. P.
1990-01-01
Therapists who assume that eating disorders affect only White middle class females may fail to detect such problems in Blacks and other minority patients. Therapists are encouraged to be more culturally sensitive in treating minority patients for these and other problems. (DM)
Vocational Solutions to Youth Problems; The Persistent Frustrations of the American Experience.
ERIC Educational Resources Information Center
Grubb, W. Norton; Lazerson, Marvin
1981-01-01
The authors contend that career education reforms in the United States educational system have stratified the school system and separated lower-class and minority youth from White, middle-class youth. (CT)
ERIC Educational Resources Information Center
Burhans, Skip
International and minority students often pose additional challenges due to cultural, linguistic, or socio-economic differences with the mostly white, middle class, highly educated (and predominantly female) public service librarians with whom they come into contact. Such differences can range from minor speech/articulation problems to major…
The Role of Balanced Training and Testing Data Sets for Binary Classifiers in Bioinformatics
Wei, Qiong; Dunbrack, Roland L.
2013-01-01
Training and testing of conventional machine learning models on binary classification problems depend on the proportions of the two outcomes in the relevant data sets. This may be especially important in practical terms when real-world applications of the classifier are either highly imbalanced or occur in unknown proportions. Intuitively, it may seem sensible to train machine learning models on data similar to the target data in terms of proportions of the two binary outcomes. However, we show that this is not the case using the example of prediction of deleterious and neutral phenotypes of human missense mutations in human genome data, for which the proportion of the binary outcome is unknown. Our results indicate that using balanced training data (50% neutral and 50% deleterious) results in the highest balanced accuracy (the average of True Positive Rate and True Negative Rate), Matthews correlation coefficient, and area under ROC curves, no matter what the proportions of the two phenotypes are in the testing data. Besides balancing the data by undersampling the majority class, other techniques in machine learning include oversampling the minority class, interpolating minority-class data points and various penalties for misclassifying the minority class. However, these techniques are not commonly used in either the missense phenotype prediction problem or in the prediction of disordered residues in proteins, where the imbalance problem is substantial. The appropriate approach depends on the amount of available data and the specific problem at hand. PMID:23874456
Attitudes about high school physics in relationship to gender and ethnicity: A mixed method analysis
NASA Astrophysics Data System (ADS)
Hafza, Rabieh Jamal
There is an achievement gap and lack of participation in science, technology, engineering, and math (STEM) by minority females. The number of minority females majoring in STEM related fields and earning advanced degrees in these fields has not significantly increased over the past 40 years. Previous research has evaluated the relationship between self-identity concept and factors that promote the academic achievement as well the motivation of students to study different subject areas. This study examined the interaction between gender and ethnicity in terms of physics attitudes in the context of real world connections, personal interest, sense making/effort, problem solving confidence, and problem solving sophistication. The Colorado Learning Attitudes about Science Survey (CLASS) was given to 131 students enrolled in physics classes. There was a statistically significant Gender*Ethnicity interaction for attitude in the context of Real World Connections, Personal Interest, Sense Making/Effort, Problem Solving Confidence, and Problem Solving Sophistication as a whole. There was also a statistically significant Gender*Ethnicity interaction for attitude in the context of Real World Connections, Personal Interest, and Sense Making/Effort individually. Five Black females were interviewed to triangulate the quantitative results and to describe the experiences of minority females taking physics classes. There were four themes that emerged from the interviews and supported the findings from the quantitative results. The data supported previous research done on attitudes about STEM. The results reported that Real World Connections and Personal Interest could be possible factors that explain the lack of participation and achievement gaps that exists among minority females.
Learning Problems and Classroom Instruction.
ERIC Educational Resources Information Center
Adelman, Howard S.
Defined are categories of learning disabilities (LD) that can be remediated in regular public school classes, and offered are remedial approaches. Stressed in four studies is the heterogeneity of LD problems. Suggested is grouping LD children into three categories: no disorder (problem is from the learning environment); minor disorder (problem is…
Fuzzy support vector machine for microarray imbalanced data classification
NASA Astrophysics Data System (ADS)
Ladayya, Faroh; Purnami, Santi Wulan; Irhamah
2017-11-01
DNA microarrays are data containing gene expression with small sample sizes and high number of features. Furthermore, imbalanced classes is a common problem in microarray data. This occurs when a dataset is dominated by a class which have significantly more instances than the other minority classes. Therefore, it is needed a classification method that solve the problem of high dimensional and imbalanced data. Support Vector Machine (SVM) is one of the classification methods that is capable of handling large or small samples, nonlinear, high dimensional, over learning and local minimum issues. SVM has been widely applied to DNA microarray data classification and it has been shown that SVM provides the best performance among other machine learning methods. However, imbalanced data will be a problem because SVM treats all samples in the same importance thus the results is bias for minority class. To overcome the imbalanced data, Fuzzy SVM (FSVM) is proposed. This method apply a fuzzy membership to each input point and reformulate the SVM such that different input points provide different contributions to the classifier. The minority classes have large fuzzy membership so FSVM can pay more attention to the samples with larger fuzzy membership. Given DNA microarray data is a high dimensional data with a very large number of features, it is necessary to do feature selection first using Fast Correlation based Filter (FCBF). In this study will be analyzed by SVM, FSVM and both methods by applying FCBF and get the classification performance of them. Based on the overall results, FSVM on selected features has the best classification performance compared to SVM.
Why Does Rebalancing Class-Unbalanced Data Improve AUC for Linear Discriminant Analysis?
Xue, Jing-Hao; Hall, Peter
2015-05-01
Many established classifiers fail to identify the minority class when it is much smaller than the majority class. To tackle this problem, researchers often first rebalance the class sizes in the training dataset, through oversampling the minority class or undersampling the majority class, and then use the rebalanced data to train the classifiers. This leads to interesting empirical patterns. In particular, using the rebalanced training data can often improve the area under the receiver operating characteristic curve (AUC) for the original, unbalanced test data. The AUC is a widely-used quantitative measure of classification performance, but the property that it increases with rebalancing has, as yet, no theoretical explanation. In this note, using Gaussian-based linear discriminant analysis (LDA) as the classifier, we demonstrate that, at least for LDA, there is an intrinsic, positive relationship between the rebalancing of class sizes and the improvement of AUC. We show that the largest improvement of AUC is achieved, asymptotically, when the two classes are fully rebalanced to be of equal sizes.
Action Learning: Potential for Inner City Youth
ERIC Educational Resources Information Center
Epps, Edgar G.
1974-01-01
Working class and minority participation in action-learning poses potential problems likely to be overlooked by program planners. This presentation reveals the trouble spots and offers constructive suggestions. (Editor)
Imbalanced class learning in epigenetics.
Haque, M Muksitul; Skinner, Michael K; Holder, Lawrence B
2014-07-01
In machine learning, one of the important criteria for higher classification accuracy is a balanced dataset. Datasets with a large ratio between minority and majority classes face hindrance in learning using any classifier. Datasets having a magnitude difference in number of instances between the target concept result in an imbalanced class distribution. Such datasets can range from biological data, sensor data, medical diagnostics, or any other domain where labeling any instances of the minority class can be time-consuming or costly or the data may not be easily available. The current study investigates a number of imbalanced class algorithms for solving the imbalanced class distribution present in epigenetic datasets. Epigenetic (DNA methylation) datasets inherently come with few differentially DNA methylated regions (DMR) and with a higher number of non-DMR sites. For this class imbalance problem, a number of algorithms are compared, including the TAN+AdaBoost algorithm. Experiments performed on four epigenetic datasets and several known datasets show that an imbalanced dataset can have similar accuracy as a regular learner on a balanced dataset.
NASA Astrophysics Data System (ADS)
Liu, J.; Lan, T.; Qin, H.
2017-10-01
Traditional data cleaning identifies dirty data by classifying original data sequences, which is a class-imbalanced problem since the proportion of incorrect data is much less than the proportion of correct ones for most diagnostic systems in Magnetic Confinement Fusion (MCF) devices. When using machine learning algorithms to classify diagnostic data based on class-imbalanced training set, most classifiers are biased towards the major class and show very poor classification rates on the minor class. By transforming the direct classification problem about original data sequences into a classification problem about the physical similarity between data sequences, the class-balanced effect of Time-Domain Global Similarity (TDGS) method on training set structure is investigated in this paper. Meanwhile, the impact of improved training set structure on data cleaning performance of TDGS method is demonstrated with an application example in EAST POlarimetry-INTerferometry (POINT) system.
Li, Jinyan; Fong, Simon; Sung, Yunsick; Cho, Kyungeun; Wong, Raymond; Wong, Kelvin K L
2016-01-01
An imbalanced dataset is defined as a training dataset that has imbalanced proportions of data in both interesting and uninteresting classes. Often in biomedical applications, samples from the stimulating class are rare in a population, such as medical anomalies, positive clinical tests, and particular diseases. Although the target samples in the primitive dataset are small in number, the induction of a classification model over such training data leads to poor prediction performance due to insufficient training from the minority class. In this paper, we use a novel class-balancing method named adaptive swarm cluster-based dynamic multi-objective synthetic minority oversampling technique (ASCB_DmSMOTE) to solve this imbalanced dataset problem, which is common in biomedical applications. The proposed method combines under-sampling and over-sampling into a swarm optimisation algorithm. It adaptively selects suitable parameters for the rebalancing algorithm to find the best solution. Compared with the other versions of the SMOTE algorithm, significant improvements, which include higher accuracy and credibility, are observed with ASCB_DmSMOTE. Our proposed method tactfully combines two rebalancing techniques together. It reasonably re-allocates the majority class in the details and dynamically optimises the two parameters of SMOTE to synthesise a reasonable scale of minority class for each clustered sub-imbalanced dataset. The proposed methods ultimately overcome other conventional methods and attains higher credibility with even greater accuracy of the classification model.
Oversampling the Minority Class in the Feature Space.
Perez-Ortiz, Maria; Gutierrez, Pedro Antonio; Tino, Peter; Hervas-Martinez, Cesar
2016-09-01
The imbalanced nature of some real-world data is one of the current challenges for machine learning researchers. One common approach oversamples the minority class through convex combination of its patterns. We explore the general idea of synthetic oversampling in the feature space induced by a kernel function (as opposed to input space). If the kernel function matches the underlying problem, the classes will be linearly separable and synthetically generated patterns will lie on the minority class region. Since the feature space is not directly accessible, we use the empirical feature space (EFS) (a Euclidean space isomorphic to the feature space) for oversampling purposes. The proposed method is framed in the context of support vector machines, where the imbalanced data sets can pose a serious hindrance. The idea is investigated in three scenarios: 1) oversampling in the full and reduced-rank EFSs; 2) a kernel learning technique maximizing the data class separation to study the influence of the feature space structure (implicitly defined by the kernel function); and 3) a unified framework for preferential oversampling that spans some of the previous approaches in the literature. We support our investigation with extensive experiments over 50 imbalanced data sets.
Differential geometric treewidth estimation in adiabatic quantum computation
NASA Astrophysics Data System (ADS)
Wang, Chi; Jonckheere, Edmond; Brun, Todd
2016-10-01
The D-Wave adiabatic quantum computing platform is designed to solve a particular class of problems—the Quadratic Unconstrained Binary Optimization (QUBO) problems. Due to the particular "Chimera" physical architecture of the D-Wave chip, the logical problem graph at hand needs an extra process called minor embedding in order to be solvable on the D-Wave architecture. The latter problem is itself NP-hard. In this paper, we propose a novel polynomial-time approximation to the closely related treewidth based on the differential geometric concept of Ollivier-Ricci curvature. The latter runs in polynomial time and thus could significantly reduce the overall complexity of determining whether a QUBO problem is minor embeddable, and thus solvable on the D-Wave architecture.
Overcoming Learned Helplessness: Managerial Strategies for the 1990s.
ERIC Educational Resources Information Center
Arnhold, Rose Marie; Razak, W. Nevell
1991-01-01
Discusses problems of work force quality in the United States in the 1990s, strategies for managerial response to these problems, and sources of employee resistance to change. Notes that business and industry may be forced to hire minorities and women with orientations to self and work different from those held by white middle-class men.…
ERIC Educational Resources Information Center
CUNNINGHAM, GLORIA
THE IDEA OF A "BORN CRIMINAL" OR A CLASS OF CRIMINALS IS ERRONEOUS. SOME CITIZENS MAINTAIN THIS ATTITUDE AND THEREFORE LACK COMMUNITY CONCERN OR INVOLVEMENT, THEREBY REDUCING THE NUMBER OF RESOURCES AND COOPERATING COMMUNITY UNITS THAT A PROBATION OFFICER CAN DRAW ON. ANOTHER PROBLEM WITH RESOURCES IS THAT, EVEN WHERE THEY DO EXIST, THEY…
NASA Astrophysics Data System (ADS)
Baker, Dale
This study examined the effects of single-sex middle school science and mathematics classrooms with high minority enrollment on achievement, affect, peer, and teacher-student interactions. All students earned higher grades in mathematics than in science. Girls earned higher grades than boys. The higher grades of girls were not clearly attributable to the singlesex environment, and aspects of the single-sex environment interfered with boys' achievement. The single-sex environment contributed to girls', but not boys', feelings of empowerment, peer support, and positive self-concept. The curriculum and pedagogy were better suited to girls than to boys, leading to discipline problems and hostile interactions. However, boys were more engaged in technology-based activities than girls. Overall, all-boy classes were less supportive learning environments than all-girl classes. Although the results replicate findings elsewhere, this is the only study to look at minority students in middle school.
van der Velden, Peter G; van der Meulen, Erik; Lenferink, Lonneke I M; Yzermans, Joris C
2018-06-01
Research has shown that the amount of media exposure is associated with post-event mental health problems. Whether bereaved individuals have negative experiences with media reports and whether they are associated with post-event mental health is unclear. This study evaluated these experiences and associations following the MH17-disaster. How media reports were experienced (nine topics, modified MAS), depression symptoms (QIDS-SR), functional problems (WSAS) and event-related coping-self-efficacy (CSE) were assessed about one year post-disaster (May-August 2015) among Dutch bereaved (N = 152). A substantial minority reported negative experiences such as reports made me angry (30%) and made me sad (48%). Latent profile analysis with symptoms, problems and coping self-efficacy as indicators, identified four classes of post-disaster mental health: a Well-functioning (class 1) , 35.1%; a Mild-problems (class 2) , 30.4%; a Sub-clinical (class 3) , 27.0%; and a Clinical (class 4) , 7.4%. Differences in symptoms, problems and coping self-efficacy levels between classes were large according to Cohen's ds. Multivariate logistic regression (MLR) showed that the Clinical (class 4) compared to the Well-functioning (class 1) , more often that felt that reports strongly "embarrassed me," "made me feel sad," "filled me with fear" and "served as a magnifying glass." Future research should assess opportunities and effects of limiting media consumption. © 2018 Tilburg University. Scandinavian Journal of Psychology published by Scandinavian Psychological Associations and John Wiley & Sons Ltd.
ERIC Educational Resources Information Center
McCaffrey, Patrick
1982-01-01
Gentrification, or the return of the middle class to renovated inner-city neighborhoods, is forcing out the aged and minority poor who can no longer afford the higher cost of housing in those areas. This has created the problem of a population of mostly Blacks and ethnic groups. (Author/MJL)
Race, culture and ethnicity in minority research: a critical discussion.
Dein, Simon
2006-01-01
Race and ethnicity are terms commonly used in ethnic minority research. Both these terms present a number of problems in terms of definition and classification. It is argued here that there is a need to move beyond essentialised concepts of race and ethnicity to examine the socio-political processes which relate to their social construction and the ways in which these terms articulate with other categories such as social class and gender and structure social relationships. The implications of the social constructionist position are discussed specifically in relation to the use of interpreters and ethnic matching of researcher and respondent in qualitative research on ethnic minorities.
Educational Challenges of the 1980's.
ERIC Educational Resources Information Center
Wegmann, Robert G.
Education will have to face fewer students and less money in the next decade. The white middle class migration to the suburbs will cause greater concentrations of minority students in the large cities, intensifying the problems caused by non-English speaking students, and the increasingly isolated socioeconomic environment. Projections for…
NASA Astrophysics Data System (ADS)
Mungin, Rochelle E.
This quantitative study examined science interest and achievement of middle school minority females in both traditional science classes and Problem-based Learning (PBL) science classes. The purpose of this study was to determine if there is a significant difference between traditional teaching and the PBL teaching method. The researcher also looked for a significant relationship between interest in science and achievement in science. This study used survey data from parents of female middle school science students to measure student interest in science concepts. The population of interest for this study was 13--15 year old eighth grade females from various racial make-ups such as, African American, Hispanic, Bi-racial, Asian, and Other Pacific Islander. Student achievement data was retrieved from the 8th grade science fall common assessed benchmark exam of both test groups. The results of the survey along with the benchmark data was to shed light on the way adolescent females learn and come to embrace science. The findings may provide guidance for science educators seeking to reach their minority female students and guide their achievement levels higher than before. From the results of the t-test and Pearson correlation test of this study, it can be concluded that while this study did not show a significant difference in academic achievement or interest between the two teaching styles, it revealed that interest in science has a positive role to play in the academic success of minority girls in science. The practical implications for examining these issues are to further the research on solutions for closing the minority and gender achievement gaps. The results of this study have implications for researchers as well as practitioners in the field of education.
African American and Afrocentric Communication Courses: A Rationale.
ERIC Educational Resources Information Center
Byrd, Marquita L.
One of the main problems with higher education is that curriculums, both past and present, objectify and marginalize the experiences of people of color and thus reduce diversity in the graduate and professional school populations. African American, Asians, Hispanics, and other minorities are studied in many college-level classes only as an…
Peterfreund, Alan R.; Xenos, Samuel P.; Bayliss, Frank; Carnal, Nancy
2007-01-01
Supplemental instruction classes have been shown in many studies to enhance performance in the supported courses and even to improve graduation rates. Generally, there has been little evidence of a differential impact on students from different ethnic/racial backgrounds. At San Francisco State University, however, supplemental instruction in the Introductory Biology I class is associated with even more dramatic gains among students from underrepresented minority populations than the gains found among their peers. These gains do not seem to be the product of better students availing themselves of supplemental instruction or other outside factors. The Introductory Biology I class consists of a team-taught lecture component, taught in a large lecture classroom, and a laboratory component where students participate in smaller lab sections. Students are expected to master an understanding of basic concepts, content, and vocabulary in biology as well as gain laboratory investigation skills and experience applying scientific methodology. In this context, supplemental instruction classes are cooperative learning environments where students participate in learning activities that complement the course material, focusing on student misconceptions and difficulties, construction of a scaffolded knowledge base, applications involving problem solving, and articulation of constructs with peers. PMID:17785403
A Noise-Filtered Under-Sampling Scheme for Imbalanced Classification.
Kang, Qi; Chen, XiaoShuang; Li, SiSi; Zhou, MengChu
2017-12-01
Under-sampling is a popular data preprocessing method in dealing with class imbalance problems, with the purposes of balancing datasets to achieve a high classification rate and avoiding the bias toward majority class examples. It always uses full minority data in a training dataset. However, some noisy minority examples may reduce the performance of classifiers. In this paper, a new under-sampling scheme is proposed by incorporating a noise filter before executing resampling. In order to verify the efficiency, this scheme is implemented based on four popular under-sampling methods, i.e., Undersampling + Adaboost, RUSBoost, UnderBagging, and EasyEnsemble through benchmarks and significance analysis. Furthermore, this paper also summarizes the relationship between algorithm performance and imbalanced ratio. Experimental results indicate that the proposed scheme can improve the original undersampling-based methods with significance in terms of three popular metrics for imbalanced classification, i.e., the area under the curve, -measure, and -mean.
A GUIDE TO ORGANIZATION AND OPERATION OF CLASSES FOR MENTALLY RETARDED MINORS.
ERIC Educational Resources Information Center
ORMOND, LAMAR; AND OTHERS
THE MENTALLY RETARDED PERSON MUST LEARN TO COPE WITH THE FUNDAMENTAL PROBLEMS OF DAILY LIVING FROM THE STANDPOINT OF HIS UNIQUE HANDICAP. SOME OF HIS NEEDS INCLUDE LEARNING TO--MAINTAIN A STATE OF PHYSICAL WELL-BEING, LIVE SAFELY, UNDERSTAND HIMSELF, GET ALONG WITH OTHERS, COMMUNICATE IDEAS, USE LEISURE TIME, EARN A LIVING, BE A HOMEMAKER, ENJOY…
Blagus, Rok; Lusa, Lara
2015-11-04
Prediction models are used in clinical research to develop rules that can be used to accurately predict the outcome of the patients based on some of their characteristics. They represent a valuable tool in the decision making process of clinicians and health policy makers, as they enable them to estimate the probability that patients have or will develop a disease, will respond to a treatment, or that their disease will recur. The interest devoted to prediction models in the biomedical community has been growing in the last few years. Often the data used to develop the prediction models are class-imbalanced as only few patients experience the event (and therefore belong to minority class). Prediction models developed using class-imbalanced data tend to achieve sub-optimal predictive accuracy in the minority class. This problem can be diminished by using sampling techniques aimed at balancing the class distribution. These techniques include under- and oversampling, where a fraction of the majority class samples are retained in the analysis or new samples from the minority class are generated. The correct assessment of how the prediction model is likely to perform on independent data is of crucial importance; in the absence of an independent data set, cross-validation is normally used. While the importance of correct cross-validation is well documented in the biomedical literature, the challenges posed by the joint use of sampling techniques and cross-validation have not been addressed. We show that care must be taken to ensure that cross-validation is performed correctly on sampled data, and that the risk of overestimating the predictive accuracy is greater when oversampling techniques are used. Examples based on the re-analysis of real datasets and simulation studies are provided. We identify some results from the biomedical literature where the incorrect cross-validation was performed, where we expect that the performance of oversampling techniques was heavily overestimated.
Goth, Ursula Småland; Bergsli, Oddhild; Johanesen, Else Marie
2017-01-28
To determine how to enhance integration of minority students in health education, and thereby improve intercultural communication skills and cultural sensitivity in a sample of health teacher students in Norway. After a group-work intervention and for a period of six months afterwards we followed an "action research" approach and observed 47 health teachers-in-training in their first year at the Oslo and Akershus University College during classroom interactions. Data were qualitative and comprised student self-reports and survey results along with observations from three teachers, the authors of the study. Data were analyzed using a constant comparative approach with opinion categorization and an open coding procedure, with separate analyses performed on observations from minority students, majority students, and teachers. Both ethnic majority and minority students experienced an increase in intercultural knowledge and problem-solving ability after the experience of an early intervention in their first academic year of tertiary education. Students reacted favorably to the intervention and noted in class assessments both the challenges and rewards of overcoming cultural barriers. Teacher observation notes confirmed that early intervention led to an increase in interaction and cross-cultural engagement between minority and majority students compared to previous years' classes without the intervention. Early classroom intervention to promote intercultural engagement can prevent clique formation along majority/minority lines. The method used here, tailored group assignments in ethnically diverse working groups at the very beginning of students' tertiary academic career, can be an effective approach to cultivating attitudes and skills fostering intercultural awareness and sensitivity.
Bergsli, Oddhild; Johanesen, Else Marie
2017-01-01
Objectives To determine how to enhance integration of minority students in health education, and thereby improve intercultural communication skills and cultural sensitivity in a sample of health teacher students in Norway. Methods After a group-work intervention and for a period of six months afterwards we followed an “action research” approach and observed 47 health teachers-in-training in their first year at the Oslo and Akershus University College during classroom interactions. Data were qualitative and comprised student self-reports and survey results along with observations from three teachers, the authors of the study. Data were analyzed using a constant comparative approach with opinion categorization and an open coding procedure, with separate analyses performed on observations from minority students, majority students, and teachers. Results Both ethnic majority and minority students experienced an increase in intercultural knowledge and problem-solving ability after the experience of an early intervention in their first academic year of tertiary education. Students reacted favorably to the intervention and noted in class assessments both the challenges and rewards of overcoming cultural barriers. Teacher observation notes confirmed that early intervention led to an increase in interaction and cross-cultural engagement between minority and majority students compared to previous years’ classes without the intervention. Conclusions Early classroom intervention to promote intercultural engagement can prevent clique formation along majority/minority lines. The method used here, tailored group assignments in ethnically diverse working groups at the very beginning of students’ tertiary academic career, can be an effective approach to cultivating attitudes and skills fostering intercultural awareness and sensitivity. PMID:28132033
Discriminative motif discovery via simulated evolution and random under-sampling.
Song, Tao; Gu, Hong
2014-01-01
Conserved motifs in biological sequences are closely related to their structure and functions. Recently, discriminative motif discovery methods have attracted more and more attention. However, little attention has been devoted to the data imbalance problem, which is one of the main reasons affecting the performance of the discriminative models. In this article, a simulated evolution method is applied to solve the multi-class imbalance problem at the stage of data preprocessing, and at the stage of Hidden Markov Models (HMMs) training, a random under-sampling method is introduced for the imbalance between the positive and negative datasets. It is shown that, in the task of discovering targeting motifs of nine subcellular compartments, the motifs found by our method are more conserved than the methods without considering data imbalance problem and recover the most known targeting motifs from Minimotif Miner and InterPro. Meanwhile, we use the found motifs to predict protein subcellular localization and achieve higher prediction precision and recall for the minority classes.
Enhanced risk management by an emerging multi-agent architecture
NASA Astrophysics Data System (ADS)
Lin, Sin-Jin; Hsu, Ming-Fu
2014-07-01
Classification in imbalanced datasets has attracted much attention from researchers in the field of machine learning. Most existing techniques tend not to perform well on minority class instances when the dataset is highly skewed because they focus on minimising the forecasting error without considering the relative distribution of each class. This investigation proposes an emerging multi-agent architecture, grounded on cooperative learning, to solve the class-imbalanced classification problem. Additionally, this study deals further with the obscure nature of the multi-agent architecture and expresses comprehensive rules for auditors. The results from this study indicate that the presented model performs satisfactorily in risk management and is able to tackle a highly class-imbalanced dataset comparatively well. Furthermore, the knowledge visualised process, supported by real examples, can assist both internal and external auditors who must allocate limited detecting resources; they can take the rules as roadmaps to modify the auditing programme.
1983-12-01
problem equipment, supply support deficiencies , maintenance difficulties, etc., which tend to reduce the combat readi- ness of the Navy. CASREPs are...with Operation Reports Publication NVP 7. The severity codes are as follows: C-2 - (Substantially Ready) A deficiency exists in mission essential...equipment which causes a minor degradaticn in any primary mission area. C-3 - (Marginally Ready) a deficiency exists in mission essential equipment which
ERIC Educational Resources Information Center
Liu, Yi
2010-01-01
To accelerate the development of the ethnic minority regions and cultivate ethnic minority talent, the state has successively implemented policies of setting up the Tibet Class and the Xinjiang Class in institutions of higher learning in China's interior regions ("neidi"), enabling some of the finest young students among the ethnic…
Parent-Child Endorsement Discrepancies among Youth at Chronic-Risk for Depression.
Makol, Bridget A; Polo, Antonio J
2017-11-10
Depression is one of the most common mental health problems among U.S. adolescents, particularly among Latinos. Parent-child ratings of the presence and severity of child depressive symptoms show only low-to-moderate agreement. However, research has failed to examine discrepancies in populations with the highest levels of unmet need and little is known about patterns and predictors of parent-child agreement in ratings of depressive symptoms among ethnic minority families in community settings. Using a sample of 184 low-income, predominantly Latino, 5th through 7th grade students (63.6% female) at chronic risk for depression, this study utilized exploratory Latent Class Analysis (LCA) to uncover patterns of parent-child endorsement of core diagnostic depressive symptoms. Overall, children reported higher levels of core (i.e., depressed mood, anhedonia, irritability) and secondary (e.g., sleep disturbances) depressive symptoms relative to their parents. The three latent classes identified include a low endorsement and high agreement class (LH), high endorsement and high agreement class (HH), and high child endorsement and low agreement class (HCL). Multinomial regression models revealed that previous mental health service use and higher externalizing problems were associated with HH class membership, relative to HCL class membership. Findings provide evidence that a substantial number of children may have depressive symptoms that go undetected by their parents. Access to services among children at-risk for depression may be increased with psychoeducation to improve parental awareness and stigma reduction.
Undergraduate optics program for the 21st Century
NASA Astrophysics Data System (ADS)
Palmer, James M.
2002-05-01
We have been offering a successful BS degree in optical engineering for the past ten years. We have produced more than 100 graduates, highly trained in basic optics and electronics. Our Industrial Affiliates, while very pleased with our graduates, requested that we produce some with greater mechanical engineering skills and knowledge. Our response was the creation of a new degree program, retaining the virtues of the previous one, but allowing a high degree of flexibility through the inclusion of minors within the program. The new program allows sufficient room for a variety of minors. Engineering minors identified include aerospace, computer, electrical, materials and mechanical. Science minors include astronomy, computer science, math and physics. Non-science minors accommodated include business, pre-health and pre-law. The new BSO program features: (1) Better structure and flow, more tightly coupling related classes; (2) New laboratory classes for juniors, linked to lecture classes; (3) Expanded optical deign, fabrication and testing classes; (4) New class in electronics for optics; (5) New classes in fiber optics and optical communications; (6) New capstone/senior project class for ABET compliance. This new BSO program will produce better entry-level optical scientists and engineers, and better candidates for graduate school. Our interactions with the external community will provide inputs concerning industrial needs, leading towards improved student counseling and program development. We will better serve national needs for skilled personnel in optics, and contribute even more to the optics workforce pipeline.
FDA's regulation of tanning beds: how much heat?
Knapp, Veronica
2011-01-01
This paper considers the problem of indoor tanning bed use by teenagers. The paper explores FDA's current authority to regulate tanning lamps as Class I medical devices, concluding that FDA's authority is poorly tailored to affect teenagers' repeated use of these products. An outright ban is unlikely; therefore, the best available options are to regulate access by minors and to amend the warning label requirements to reflect the current state of knowledge about the risks of tanning bed use.
Vannoni, Francesca; Mamo, C; Demaria, M; Ceccarelli, C; Costa, G
2005-01-01
Knowledge on the occupational and social factors that influence the relationship between illness, absence from work and occupational mobility is at present insufficient. To map out, by social class and occupational group, the impact of health problems on work and the distribution of accidents and morbidity associated with occupation. Using data from the National Survey of the Italian Labour Force (ISTAT, 1999), covering a sample of 200,384 subjects, prevalence odds ratios of morbidity, work injuries and change of occupation due to health problems were calculated by social class and occupation, adjusting for age and residence. The working class showed a higher risk, due to health problems, of a reduction in time worked (OR = 3.70 in men and OR = 4.10 in women), of choosing to work part-time (OR = 2.04 in men and OR = 2.27 in women), or of withdrawing from the workforce (for artisans, skilled manual workers, farmers and agricultural labourers OR = 1.63 in men and OR = 1.47 in women). This class was also at a greater disadvantage not only with respect to accident rates (OR = 1.85 in men and OR = 1.88 in women), but also with respect to the time needed for post-trauma rehabilitation and return to work (for absences of one week to one month: OR = 1.67 and 1.83 for men and women, respectively; for absences of more than one month: OR = 1.29 and OR = 1.69). Moreover, the working class, when compared to other social classes, had a higher rate of suffering from illness, physical impairment or other physical and psychological problems caused or aggravated by working activity (25% in men and 32% in women). The ISTAT National Survey provides an estimate of minor accidents with prognoses of less than three days, including those not reported to the National Institute for Insurance against Occupational Accidents and Diseases (INAIL). This allows a preliminary exploration of the relationship between health problems and occupational mobility; however, it seems necessary to collect more detailed information in order to more exhaustively explore the mechanisms which generate the inequalities observed.
Kuo, Fu Wen; Yang, Shu Ching
2017-12-01
This study aimed to elucidate whether the interaction of classroom composition and the need to belong influences belongingness seeking and, if so, to investigate how upward comparison mediates the effects. The analyses were conducted with a cross-sectional sample of 383 Taiwanese aboriginal adolescents (39.7% male) recruited from schools with mixed-sex/ethnicity (n = 113), single-sex (n = 122), and minority-only (n = 148) classrooms. After controlling for socioeconomic status, the moderation analyses indicated that participants with a chronic need to belong in classes with diversity (mixed sex/ethnicity) perceived higher social acceptance, while those with a chronic need to belong in homogeneous classes (single-sex and minority-only) reported greater feelings of rejection. Upward comparison for differentiation was found to influence the indirect effects of the need to belong on feelings of rejection and depression in single-sex and minority-only classes. In particular, the mediating effect of upward comparison was stronger in minority-only classes. Copyright © 2017 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.
ERIC Educational Resources Information Center
Wilgus, Gay
2006-01-01
Research literature suggests that adults from working-class minority backgrounds demonstrate authoritarian and coercive tendencies in their choices of disciplinary strategies when compared with adults from middle-class, "white", "Anglo", or "North American" backgrounds. However, in a recent study in New York City,…
ERIC Educational Resources Information Center
Forrest, Krista D.
2005-01-01
To convince my students they are surrounded by social psychology, we attended a minor league hockey game. During the next class period I asked students to write a brief paragraph about their experiences. From those paragraphs I chose four reoccurring themes to analyze from a social psychological perspective. My introductory classes and I benefited…
Nguyen, Trang Quynh; Bandeen-Roche, Karen; German, Danielle; Nguyen, Nam T T; Bass, Judith K; Knowlton, Amy R
2016-10-01
Research linking family rejection and health outcomes in sexual minority people is mostly limited to North America. We assessed the associations between negative treatment by family members and depressive symptoms, life satisfaction, suicidality, and tobacco/alcohol use in sexual minority women (SMW) in Viet Nam. Data were from an anonymous internet survey (n = 1936). Latent class analysis characterized patterns of negative treatment by family members experienced by respondents. Latent class with distal outcome modeling was used to regress depressive symptoms, life satisfaction, suicidality, and tobacco/alcohol use on family treatment class, controlling for predictors of family treatment and for two other types of sexual prejudice. Five latent family treatment classes were extracted, including four negative classes representing varying patterns of negative family treatment. Overall, more than one negative class predicted lower life satisfaction, more depressive symptoms, and higher odds of attempted suicide (relative to the non-negative class), supporting the minority stress hypothesis that negative family treatment is predictive of poorer outcomes. Only the most negative class had elevated alcohol use. The association between family treatment and smoking status was not statistically significant. The most negative class, unexpectedly, did not have the highest odds of having attempted suicide, raising a question about survivor bias. This population requires public health attention, with emphasis placed on interventions targeting the family to promote acceptance and to prevent negative treatment, and interventions supporting those SMW who encounter the worst types of negative family treatment.
ERIC Educational Resources Information Center
Choi, Sheena
2010-01-01
This case study of Yanbian University, a Korean minority university in China, examines the challenges faced, strategies employed, and resources mobilized by a minority university in its attempt to become a world-class university. Specifically, this case study focuses on how the University is attempting to reach its goals within the context of the…
Chae, David H; Krieger, Nancy; Bennett, Gary G; Lindsey, Jane C; Stoddard, Anne M; Barbeau, Elizabeth M
2010-01-01
This study investigated the distribution of demographic characteristics, the prevalence of discrimination based on sexuality, gender, and race, and relationships with psychological distress among 178 working-class sexual minorities (i.e., who identified as lesbian, gay, or bisexual (LGB) or had ever engaged in same-sex sexual behaviors) recruited to the United for Health Study (2003-2004). The results indicated considerable heterogeneity in responses to items assessing sexual orientation and sexual behavior, with a majority of sexual minority participants not identifying as LGB (74.2%). The authors found significant demographic differences in LGB identification by gender, race/ethnicity, nativity, and socioeconomic factors. In addition, LGB participants had higher levels of psychological distress than non-LGB-identified sexual minorities. Linear regression analyses revealed that reports of racial/ethnic discrimination and sexuality discrimination were associated with higher levels of psychological distress among sexual minority participants. The results underscore the need to collect multiple measures of sexuality in conducting research on racially diverse working-class communities; to consider demographic factors in collecting sexuality data; and to disaggregate information on sexuality by LGB identification. Findings also highlight the importance of addressing discrimination in ameliorating problematic mental health outcomes among working-class sexual minorities.
NASA Astrophysics Data System (ADS)
Webb, D. J.
2017-08-01
Two active learning physics courses were taught and compared. The "concepts first" course was organized to teach only concepts in the first part of the class, the ultimate goal being to increase students' problem-solving abilities much later in the class. The other course was taught in the same quarter by the same instructor using the same curricular materials, but covered material in the standard (chapter-by-chapter) order. After accounting for incoming student characteristics, students from the concepts-first course scored significantly better in two outcome measures: their grade on the final exam and the grade received in their subsequent physics course. Moreover, in the concepts-first class course, students from groups underrepresented in physics had final exam scores and class grades that were indistinguishable from other students. Finally, students who took at least one concepts-first course in introductory physics were found to have significantly higher rates of graduation with a STEM major than students from this cohort who did not.
75 FR 50694 - Modification of Class E Airspace; Astoria, OR
Federal Register 2010, 2011, 2012, 2013, 2014
2010-08-17
... Astoria, OR, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS... airport name from Port of Astoria Airport, and makes minor adjustments to the legal description of the... minor correction to the legal description for Class E airspace extending upward from 700 feet above the...
Prevalence of depressive disorders in Rasht, Iran: A community based study.
Modabernia, Mohamad Jafar; Tehrani, Hossein Shodjai; Fallahi, Mahnaz; Shirazi, Maryam; Modabbernia, Amir Hossein
2008-07-04
Depression is a well known health problem worldwide. Prevalence of depressive disorders varies in different societies. to determine the prevalence of depressive disorders and some associated factors in Rasht City (Northern part of Iran). 4020 subjects were selected among 394925 residents of Rasht aged between 18-70 during 2003 - 2004. In the first phase, subjects were screened by Beck's Depression Inventory. In the second phase, those who scored more than 15 were assessed through semi-structured psychiatric interview (DSMIV-TR). Socio-demographic characteristics including age, gender, marital status, educational level, and socio-economic class were recorded as well. 9.5% of samples (63% female and 37% male) were diagnosed by depressive disorders. The prevalence of minor depressive disorder, dysthymia and major depressive disorder was 5%, 2/5%, and 1% respectively. Socio-economic class was significantly associated with both depressive symptoms based on BDI score (p < 0.001) and depressive disorders based on clinical interview (p < 0.001). Comparing to other studies, this study revealed that prevalence of dysthymic and minor depressive disorder were more than major depressive disorder, and low socio-economic class was the most significant risk factor associated with depression. Regarding our study limitations, researchers and policy makers should not consider our findings as conclusive results. Findings of this study could be applied by researchers using analytical methodology to assess relationship between depressive disorders and associated factors.
Drug-target interaction prediction via class imbalance-aware ensemble learning.
Ezzat, Ali; Wu, Min; Li, Xiao-Li; Kwoh, Chee-Keong
2016-12-22
Multiple computational methods for predicting drug-target interactions have been developed to facilitate the drug discovery process. These methods use available data on known drug-target interactions to train classifiers with the purpose of predicting new undiscovered interactions. However, a key challenge regarding this data that has not yet been addressed by these methods, namely class imbalance, is potentially degrading the prediction performance. Class imbalance can be divided into two sub-problems. Firstly, the number of known interacting drug-target pairs is much smaller than that of non-interacting drug-target pairs. This imbalance ratio between interacting and non-interacting drug-target pairs is referred to as the between-class imbalance. Between-class imbalance degrades prediction performance due to the bias in prediction results towards the majority class (i.e. the non-interacting pairs), leading to more prediction errors in the minority class (i.e. the interacting pairs). Secondly, there are multiple types of drug-target interactions in the data with some types having relatively fewer members (or are less represented) than others. This variation in representation of the different interaction types leads to another kind of imbalance referred to as the within-class imbalance. In within-class imbalance, prediction results are biased towards the better represented interaction types, leading to more prediction errors in the less represented interaction types. We propose an ensemble learning method that incorporates techniques to address the issues of between-class imbalance and within-class imbalance. Experiments show that the proposed method improves results over 4 state-of-the-art methods. In addition, we simulated cases for new drugs and targets to see how our method would perform in predicting their interactions. New drugs and targets are those for which no prior interactions are known. Our method displayed satisfactory prediction performance and was able to predict many of the interactions successfully. Our proposed method has improved the prediction performance over the existing work, thus proving the importance of addressing problems pertaining to class imbalance in the data.
Examining issues of underrepresented minority students in introductory physics
NASA Astrophysics Data System (ADS)
Watkins, Jessica Ellen
In this dissertation we examine several issues related to the retention of under-represented minority students in physics and science. In the first section, we show that in calculus-based introductory physics courses, the gender gap on the FCI is diminished through the use of interactive techniques, but in lower-level introductory courses, the gap persists, similar to reports published at other institutions. We find that under-represented racial minorities perform similar to their peers with comparable academic preparation on conceptual surveys, but their average exam grades and course grades are lower. We also examine student persistence in science majors; finding a significant relationship between pedagogy in an introductory physics course and persistence in science. In the second section, we look at student end-of-semester evaluations and find that female students rate interactive teaching methods a full point lower than their male peers. Looking more deeply at student interview data, we find that female students report more social issues related to the discussions in class and both male and female students cite feeling pressure to obtain the correct answer to clicker questions. Finally, we take a look an often-cited claim for gender differences in STEM participation: cognitive differences explain achievement differences in physics. We examine specifically the role of mental rotations in physics achievement and problem-solving, viewing mental rotations as a tool that students can use on physics problems. We first look at student survey results for lower-level introductory students, finding a low, but significant correlation between performance on a mental rotations test and performance in introductory physics courses. In contrast, we did not find a significant relationship for students in the upper-level introductory course. We also examine student problem-solving interviews to investigate the role of mental rotations on introductory problems.
Participatory Deep Learning in a Diverse Class on Minority Literatures
ERIC Educational Resources Information Center
Mwangi, Evan
2010-01-01
This paper is a reflexive exploration of my teaching and evaluation techniques in a diverse class on minority literature. I explain my classroom evaluation and teaching techniques in offering an African literature course as a junior African professor trained outside the United States and teaching in a predominantly white institution. Using Paulo…
ERIC Educational Resources Information Center
Ryu, Minjung
2015-01-01
This study examines six Korean transnational girls enrolled in two advanced placement (AP) biology classes to understand their experiences in science classrooms at the intersection of race, language, and gender. Confronting the model minority stereotype for Asian students, which is particularly salient in science, technology, engineering, and…
Post-boosting of classification boundary for imbalanced data using geometric mean.
Du, Jie; Vong, Chi-Man; Pun, Chi-Man; Wong, Pak-Kin; Ip, Weng-Fai
2017-12-01
In this paper, a novel imbalance learning method for binary classes is proposed, named as Post-Boosting of classification boundary for Imbalanced data (PBI), which can significantly improve the performance of any trained neural networks (NN) classification boundary. The procedure of PBI simply consists of two steps: an (imbalanced) NN learning method is first applied to produce a classification boundary, which is then adjusted by PBI under the geometric mean (G-mean). For data imbalance, the geometric mean of the accuracies of both minority and majority classes is considered, that is statistically more suitable than the common metric accuracy. PBI also has the following advantages over traditional imbalance methods: (i) PBI can significantly improve the classification accuracy on minority class while improving or keeping that on majority class as well; (ii) PBI is suitable for large data even with high imbalance ratio (up to 0.001). For evaluation of (i), a new metric called Majority loss/Minority advance ratio (MMR) is proposed that evaluates the loss ratio of majority class to minority class. Experiments have been conducted for PBI and several imbalance learning methods over benchmark datasets of different sizes, different imbalance ratios, and different dimensionalities. By analyzing the experimental results, PBI is shown to outperform other imbalance learning methods on almost all datasets. Copyright © 2017 Elsevier Ltd. All rights reserved.
Youth Aggressive/Disruptive Behavior Trajectories and subsequent Gambling among Urban Male Youth
Martins, Silvia S.; Liu, Weiwei; Hedden, Sarra L.; Goldweber, Asha; Storr, Carla L.; Derevensky, Jeffrey L.; Stinchfield, Randy; Ialongo, Nicholas S.; Petras, Hanno
2013-01-01
Objective This study examines the association between aggressive/disruptive behavior development in two distinct developmental periods, childhood (i.e., grades 1–3) and early adolescence (i.e., grades 6–10) and subsequent gambling behavior in late adolescence up to age 20. Method The sample consists of 310 urban males of predominately minority and low socioeconomic status followed from first grade to late adolescence. Separate general growth mixture models (GGMM) were estimated to explore the heterogeneity in aggressive/disruptive behavior development in the above-mentioned two time periods. Results Three distinct behavior trajectories were identified for each time period: a chronic high, a moderate increasing and a low increasing class for childhood, and a chronic high, a moderate increasing followed by decreasing and a low stable class for early adolescence. There was no association between childhood behavior trajectories and gambling involvement. Males with a moderate behavior trajectory in adolescence where two times more likely to gamble compared to those in the low stable class (OR=1.89, 95% CI=1.11, 3.24). Those with chronic high trajectories during either childhood or early adolescence (OR=2.60, 95% CI=1.06, 6.38; OR=3.19, 95% CI=1.18, 8.64, respectively) were more likely to be at-risk/problem gamblers than those in the low class. Conclusions Aggressive/disruptive behavior development in childhood and early adolescence is associated with gambling and gambling problems in late adolescence among urban male youth. Preventing childhood and youth aggressive/disruptive behavior may be effective to prevent youth problem gambling. PMID:23410188
Minority students in the science classroom: Issues of language, class, race, culture and pedagogy
NASA Astrophysics Data System (ADS)
Sweeney, Aldrin Edward
A considerable proportion of the educationally at-risk students in the K-12 public education system is composed of minority students, either in terms of cultural background, linguistic background, and frequently, both. In particular, satisfactory levels of achievement in science are not being attained by these students. The concerns of this study center on examining and understanding the reasons underlying this situation, with a view to suggesting how these problems of underachievement in science might be addressed. Previous and ongoing educational research concerning these issues suggest that such underachievement may be due to current pedagogical practices which seem to actively discourage these students from achieving any significant measure of academic, educational or professional success. The purpose of this study is thus to explore the beliefs and pedagogical practices of science teachers as they relate to minority students, especially those minority students for whom English is not a first language and who have limited English proficiency (LEP). In the course of this study, the terminology 'minority students' will refer to and be inclusive of cultural and/or language minorities, i.e. those students who differ from the mainstream white American student in terms of cultural background and a native language other than English. Culturally derived usages of non-standard forms of English (e.g. Black English Vernacular) also will be subsumed within this definition of cultural and language minority students. Particular attention will be given to emergent issues relating to current pedagogical practices, also to the science teacher beliefs and epistemological rationales underlying such practices. In exploring these beliefs and pedagogical practices, the study also will seek to delineate and to understand the various problems which are being encountered in the teaching of science to minority students. As the result of exploring the beliefs and pedagogical practices of science teachers as they relate to minority students, it is intended that the completed study will contribute toward the development and elaboration of a substantive pedagogical content knowledge base for science teachers of cultural and language minority students. It is anticipated that the development of such a knowledge base will be of practical assistance to science teachers in their pedagogical decisions such that a greater inclusion of these students in the science discourse community may be attained.
Evolutionary fuzzy ARTMAP neural networks for classification of semiconductor defects.
Tan, Shing Chiang; Watada, Junzo; Ibrahim, Zuwairie; Khalid, Marzuki
2015-05-01
Wafer defect detection using an intelligent system is an approach of quality improvement in semiconductor manufacturing that aims to enhance its process stability, increase production capacity, and improve yields. Occasionally, only few records that indicate defective units are available and they are classified as a minority group in a large database. Such a situation leads to an imbalanced data set problem, wherein it engenders a great challenge to deal with by applying machine-learning techniques for obtaining effective solution. In addition, the database may comprise overlapping samples of different classes. This paper introduces two models of evolutionary fuzzy ARTMAP (FAM) neural networks to deal with the imbalanced data set problems in a semiconductor manufacturing operations. In particular, both the FAM models and hybrid genetic algorithms are integrated in the proposed evolutionary artificial neural networks (EANNs) to classify an imbalanced data set. In addition, one of the proposed EANNs incorporates a facility to learn overlapping samples of different classes from the imbalanced data environment. The classification results of the proposed evolutionary FAM neural networks are presented, compared, and analyzed using several classification metrics. The outcomes positively indicate the effectiveness of the proposed networks in handling classification problems with imbalanced data sets.
Brannon, Tiffany N; Higginbotham, Gerald D; Henderson, Kyshia
2017-12-01
At the intersection of race and class the consequences of being working-class or middle-class are not so Black and White. Rather, established and emerging research suggests that race/ethnicity and social class intersect to differentially afford benefits and burdens. For instance, racial/ethnic minorities often do not reap the social, psychological or economic benefits of higher social class; yet, in some key life domains (e.g. health and mortality) racial/ethnic minorities in the U.S. seem to be buffered from some burdens of lower social class. We integrate empirical evidence to suggest that such differential advantages and disadvantages along racial lines reflect that social class exists alongside, rather than separate from, race/ethnicity as two distinct yet intersecting sources of rank and in turn selves. Copyright © 2017 Elsevier Ltd. All rights reserved.
Nontraditional approach to algebra-based general physics
NASA Astrophysics Data System (ADS)
Meltzer, David E.
1997-03-01
In order to improve the degree of conceptual learning in our algebra-based general physics course, the second semester (of a two-semester sequence) has been taught in a nontraditional format during the past year. The key characteristics of this course were: 1) Intense and continuous use of interactive-engagement methods and cooperative learning; 2) coverage of less than half of the conventional number of topics, 3) heavy emphasis on qualitative questions as opposed to quantitative problems, 4) adjustment of the pacing of the course based on continuous (twice per week) formative assessment. The students enrolled in the course were relatively poorly prepared, with weak mathematical skills. Open-book quizzes stressing qualitative concepts in electricity and magnetism were given twice per week; most were given in "group quiz" format, allowing collaboration. Exams (also open-book) were all done individually. Most of the class time was taken up by quizzes, and by interactive discussion and group work related to quiz questions. New topics were not introduced until a majority of the class demonstrated competence in the topic under discussion. Despite lengthy and intensive focus on qualitative, conceptual questions and simple quantitative problems, only a small minority of the class ultimately demonstrated mastery of the targeted concepts. Frequent testing and re-testing of the students on basic concepts disclosed tenacious persistence of misconceptions.
Accessing medication information by ethnic minorities: barriers and possible solutions.
Schaafsma, Evelyn S; Raynor, Theo D; de Jong-van den Berg, Lolkje T
2003-10-01
This review discusses two main questions: how suitable is current consumer medication information for minority ethnic groups, and what are effective strategies to overcome existing barriers. The focus is on minority groups whose first language is not the language of the healthcare system. We searched electronic databases and printed scientific journals focusing on (ethnic) minorities, health and/or (intercultural) communication. We also asked a discussion group for references. We found only a few articles on intercultural communication on medication or pharmacy information and one article on the improvement of intercultural communication in the pharmacy. Barriers to the access of medication information by ethnic minorities include second language issues and cultural differences due to different health beliefs, together with the low socio-economic status often seen among ethnic minorities. Cultural differences also exist among different socio-economic classes rather than only among ethnic groups. Most often, informal interpreters are used to improve intercultural communication. However, this may result in miscommunication due to a lack of medical knowledge or training on the part of the interpreter. To minimise miscommunication, bilingual health professionals or health interpreters/advocates can be used, although communication problems may still occur. The effectiveness of written information depends on the literacy skills of the target population. Cultural, medical and dialect biases should be avoided by testing the material. Multimedia systems may be alternatives to conventional written information. Barriers that ethnic minorities face in accessing medication information and possible solutions involving counselling and additional tools were identified for pharmacy practice. However, more research is needed to develop effective strategies for patient counselling in pharmacy to meet the needs of ethnic minorities.
Prevalence of depressive disorders in Rasht, Iran: A community based study
2008-01-01
Introduction Depression is a well known health problem worldwide. Prevalence of depressive disorders varies in different societies. Aim to determine the prevalence of depressive disorders and some associated factors in Rasht City (Northern part of Iran). Materials and methods 4020 subjects were selected among 394925 residents of Rasht aged between 18–70 during 2003 – 2004. In the first phase, subjects were screened by Beck's Depression Inventory. In the second phase, those who scored more than 15 were assessed through semi-structured psychiatric interview (DSMIV-TR). Socio-demographic characteristics including age, gender, marital status, educational level, and socio-economic class were recorded as well. Results 9.5% of samples (63% female and 37% male) were diagnosed by depressive disorders. The prevalence of minor depressive disorder, dysthymia and major depressive disorder was 5%, 2/5%, and 1% respectively. Socio-economic class was significantly associated with both depressive symptoms based on BDI score (p < 0.001) and depressive disorders based on clinical interview (p < 0.001). Conclusion Comparing to other studies, this study revealed that prevalence of dysthymic and minor depressive disorder were more than major depressive disorder, and low socio-economic class was the most significant risk factor associated with depression. Regarding our study limitations, researchers and policy makers should not consider our findings as conclusive results. Findings of this study could be applied by researchers using analytical methodology to assess relationship between depressive disorders and associated factors. PMID:18601715
The right to self-determination of minors with particular reference to the problem of euthanasia.
Conti, Adelaide; Baratta, Adriana
2009-03-01
This article deals with the problem of euthanasia, a topic of recent interest, namely the rights of minors to make their own decision regarding to euthanasia. In fact the problem of decisions on euthanasia has always been considered an adult interest while leaving the will of minors in the hands of their parents or tutors. The purpose of this article is to underline the rights of self-determination of minors on the problem of euthanasia in Italy.
Bayes classifiers for imbalanced traffic accidents datasets.
Mujalli, Randa Oqab; López, Griselda; Garach, Laura
2016-03-01
Traffic accidents data sets are usually imbalanced, where the number of instances classified under the killed or severe injuries class (minority) is much lower than those classified under the slight injuries class (majority). This, however, supposes a challenging problem for classification algorithms and may cause obtaining a model that well cover the slight injuries instances whereas the killed or severe injuries instances are misclassified frequently. Based on traffic accidents data collected on urban and suburban roads in Jordan for three years (2009-2011); three different data balancing techniques were used: under-sampling which removes some instances of the majority class, oversampling which creates new instances of the minority class and a mix technique that combines both. In addition, different Bayes classifiers were compared for the different imbalanced and balanced data sets: Averaged One-Dependence Estimators, Weightily Average One-Dependence Estimators, and Bayesian networks in order to identify factors that affect the severity of an accident. The results indicated that using the balanced data sets, especially those created using oversampling techniques, with Bayesian networks improved classifying a traffic accident according to its severity and reduced the misclassification of killed and severe injuries instances. On the other hand, the following variables were found to contribute to the occurrence of a killed causality or a severe injury in a traffic accident: number of vehicles involved, accident pattern, number of directions, accident type, lighting, surface condition, and speed limit. This work, to the knowledge of the authors, is the first that aims at analyzing historical data records for traffic accidents occurring in Jordan and the first to apply balancing techniques to analyze injury severity of traffic accidents. Copyright © 2015 Elsevier Ltd. All rights reserved.
Information Assurance in Sensor Networks
2009-09-15
minority class instance and a randomly selected neighbor. Expanding on the SMOTE framework, the Borderline -SMOTE algorithm [15] locates those minority...instances form a Tomek link then they either both reside on the borderline of the two classes or one of them is attributed to noise; therefore, by...the synthetic dataset to testify the effectiveness of our proposed algorithm. Despite the popularity of STAGGER [76] and the SEA [77] synthetic
When the patient remains in danger: psychotherapy in U.S. combat zones.
Roach, Christopher
2008-03-01
Much of the literature on the psychological treatment of victims of violence focuses on demographic populations that do not represent the majority of victims. Part of the origin of this problem is that the prototypical victim and the prototypical perpetrator are often the same. Young, poor, minority males often constitute both the victim and the perpetrator class in America. As a group, these individuals, while disproportionately thought of as suitable for incarceration, are not thought of as good candidates for psychological treatment. However, their suffering is real, unrelenting and often not addressed. Therapists face significant barriers, in the patient, in society and in themselves, in trying to help these individuals. This article examines the issues of racism, drugs, ongoing danger, class inequalities, misogyny and the blended victim/perpetrator, all of which complicate engagement and understanding between therapist and patient.
Sexual Minority Stress, Coping, and Physical Health Indicators.
Flenar, Delphia J; Tucker, Carolyn M; Williams, Jaime L
2017-12-01
Sexual minorities experience higher rates of several physical health problems compared to their heterosexual counterparts. The present study uses Meyer's Minority Stress Model (Psychological Bulletin, 129(5): 674-697, 2003) to examine physical health indicators among 250 adults who identified as sexual minorities. Study hypotheses include that sexual minority stress is predictive of two physical health indicators (i.e., engagement in a health-promoting lifestyle and number of physical health problems) and that planning (i.e., problem-focused) and social support coping will partially mediate the relationship between sexual minority stress and each physical health indicator. Results showed that as level of sexual minority stress increased, engagement in a health-promoting lifestyle decreased and the number of physical health problems increased. Planning and social support coping did not mediate these relationships; however, as levels of coping increased, engagement in a health-promoting lifestyle increased. These findings have implications for researchers and healthcare professionals in their efforts to promote the physical health of sexual minorities.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-06-10
... aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach.... This action also makes a minor change to the legal description of the Class E airspace designated as an...
Imbalanced learning for pattern recognition: an empirical study
NASA Astrophysics Data System (ADS)
He, Haibo; Chen, Sheng; Man, Hong; Desai, Sachi; Quoraishee, Shafik
2010-10-01
The imbalanced learning problem (learning from imbalanced data) presents a significant new challenge to the pattern recognition and machine learning society because in most instances real-world data is imbalanced. When considering military applications, the imbalanced learning problem becomes much more critical because such skewed distributions normally carry the most interesting and critical information. This critical information is necessary to support the decision-making process in battlefield scenarios, such as anomaly or intrusion detection. The fundamental issue with imbalanced learning is the ability of imbalanced data to compromise the performance of standard learning algorithms, which assume balanced class distributions or equal misclassification penalty costs. Therefore, when presented with complex imbalanced data sets these algorithms may not be able to properly represent the distributive characteristics of the data. In this paper we present an empirical study of several popular imbalanced learning algorithms on an army relevant data set. Specifically we will conduct various experiments with SMOTE (Synthetic Minority Over-Sampling Technique), ADASYN (Adaptive Synthetic Sampling), SMOTEBoost (Synthetic Minority Over-Sampling in Boosting), and AdaCost (Misclassification Cost-Sensitive Boosting method) schemes. Detailed experimental settings and simulation results are presented in this work, and a brief discussion of future research opportunities/challenges is also presented.
Tharwat, Alaa; Moemen, Yasmine S; Hassanien, Aboul Ella
2016-12-09
Measuring toxicity is one of the main steps in drug development. Hence, there is a high demand for computational models to predict the toxicity effects of the potential drugs. In this study, we used a dataset, which consists of four toxicity effects:mutagenic, tumorigenic, irritant and reproductive effects. The proposed model consists of three phases. In the first phase, rough set-based methods are used to select the most discriminative features for reducing the classification time and improving the classification performance. Due to the imbalanced class distribution, in the second phase, different sampling methods such as Random Under-Sampling, Random Over-Sampling and Synthetic Minority Oversampling Technique are used to solve the problem of imbalanced datasets. ITerative Sampling (ITS) method is proposed to avoid the limitations of those methods. ITS method has two steps. The first step (sampling step) iteratively modifies the prior distribution of the minority and majority classes. In the second step, a data cleaning method is used to remove the overlapping that is produced from the first step. In the third phase, Bagging classifier is used to classify an unknown drug into toxic or non-toxic. The experimental results proved that the proposed model performed well in classifying the unknown samples according to all toxic effects in the imbalanced datasets.
De Luca, Susan; Yan, Yueqi; Lytle, Megan; Brownson, Chris
2014-08-01
The aim of this paper was to examine precipitating events for suicidal ideation and how these experiences relate to disclosure in a diverse sample of college students were examined. Among non-Hispanic White students, relationship/academic problems were most associated with ideation. A romantic break-up increased the odds of getting help. Among racial/ethnic minority students, family/academic problems were most associated with ideation and students who reported multiple events were less likely to get help compared with those not reporting events. Future research should examine the reasons for interpersonal conflict among this high-risk group and their attitudes about help-seeking, and identify cultural norms associated with disclosure. © 2014 The American Association of Suicidology.
ERIC Educational Resources Information Center
Manni, John L.; And Others
Legal, professional, and historical issues are examined in the report on minority group representation in special education in New Jersey. The historical and legal background traces the controversy over the use of IQ tests with minority children and notes court rulings citing overrepresentation of minority students in classes for the mildly…
Image Processing Techniques for Assessment of Dental Trays
2001-10-25
170 patients having Angle Class I molar relationships with minor malocclusions and teeth including second molars fully erupted without loss of tooth...Abstract-A tray selected for the dental patient must adapt to the curvature of the teeth and allow the impression material to be in appropriate...brands of perforated metal trays with 170 lower arch cast models collected from patients having Angle Class 1 type occlusion with minor malocclusions
Mereish, Ethan H.; Bradford, Judith B.
2014-01-01
Objective: Research has documented that sexual minorities are at greater risk for substance use than heterosexuals. However, there are limited studies and mixed findings when investigating these health disparities among racial and ethnic minority samples. We used an intersectionality framework to examine disparities in lifetime substance use problems between heterosexual and sexual minority men and women and within sexual minority groups among a racially diverse sample. Method: A nonprobability sample of heterosexual (n = 1,091) and sexual minority (n = 1,465) patients from an urban community health center ranged in age from 18 to 72 years. Participants completed a brief patient survey and reported demographic information and history of lifetime substance use problems. Logistic regressions analyses were used to examine interactions between and among sexual orientation, gender, and race. Results: We found a significant three-way interaction among sexual orientation, gender, and race. Sexual minorities had a greater risk of self-reported lifetime substance use problems than heterosexuals, with nuanced gender and racial differences. Of greatest note, sexual minority women of color had greater risks than heterosexual women of color and than White sexual minority women. Sexual minority men of color did not differ in their risk when compared with heterosexual men of color, and they had lower risk than White sexual minority men. Conclusions: The results of this study demonstrate that an intersectionality framework is crucial to clearly identify lifetime substance use disparities between racially diverse sexual minority and heterosexual men and women. Future research, treatment, and policy should use intersectionality approaches when addressing substance use disparities. PMID:24411810
77 FR 75593 - Proposed Amendment of Class D and E Airspace; Portland-Hillsboro, OR
Federal Register 2010, 2011, 2012, 2013, 2014
2012-12-21
...-1142; Airspace Docket No. 12-ANM-25] Proposed Amendment of Class D and E Airspace; Portland-Hillsboro... action also would make a minor adjustment to the airport's geographic coordinates listed in Class D and... Federal Regulations (14 CFR) Part 71 by modifying Class E airspace designated as an extension to Class D...
Minority stress and sexual problems among African-American gay and bisexual men.
Zamboni, Brian D; Crawford, Isiaah
2007-08-01
Minority stress, such as racism and gay bashing, may be associated with sexual problems, but this notion has not been examined in the literature. African-American gay/bisexual men face a unique challenge in managing a double minority status, putting them at high risk for stress and sexual problems. This investigation examined ten predictors of sexual problems among 174 African-American gay/bisexual men. Covarying for age, a forward multiple regression analysis showed that the measures of self-esteem, male gender role stress, HIV prevention self-efficacy, and lifetime experiences with racial discrimination significantly added to the prediction of sexual problems. Gay bashing, psychiatric symptoms, low life satisfaction, and low social support were significantly correlated with sexual problems, but did not add to the prediction of sexual problems in the regression analysis. Mediation analyses showed that stress predicted psychiatric symptoms, which then predicted sexual problems. Sexual problems were not significantly related to HIV status, racial/ethnic identity, or gay identity. The findings from this study showed a relationship between experiences with racial and sexual discrimination and sexual problems while also providing support for mediation to illustrate how stress might cause sexual problems. Addressing minority stress in therapy may help minimize and treat sexual difficulties among minority gay/bisexual men.
The genetic origin of minor histocompatibility antigens.
Roopenian, D C; Christianson, G J; Davis, A P; Zuberi, A R; Mobraaten, L E
1993-01-01
The purpose of this study was to elucidate the genetic origin of minor histocompatibility (H) antigens. Toward this end common inbred mouse strains, distinct subspecies, and species of the subgenus Mus were examined for expression of various minor H antigens. These antigens were encoded by the classical minor H loci H-3 and H-4 or by newly identified minor H antigens detected as a consequence of mutation. Both minor H antigens that stimulate MHC class I-restricted cytotoxic T cells (Tc) and antigens that stimulate MHC class II-restricted helper T cells (Th) were monitored. The results suggested that strains of distinct ancestry commonly express identical or cross-reactive antigens. Moreover, a correlation between the lack of expression of minor H antigens and ancestral heritage was observed. To address whether the antigens found on unrelated strains were allelic with the sensitizing minor H antigens or a consequence of antigen cross-reactivity, classical genetic segregation analysis was carried out. Even in distinct subspecies and species, the minor H antigens always mapped to the site of the appropriate minor H locus. Together the results suggest: 1) minor H antigen sequences are evolutionarily stable in that their pace of antigenic change is slow enough to predate subspeciation and speciation; 2) the minor H antigens originated in the inbred strains as a consequence of a rare polymorphism or loss mutation carried in a founder mouse stock that caused the mouse to perceive the wild-type protein as foreign; 3) there is a remarkable lack of antigenic cross-reactivity between the defined minor H antigens and other gene products.
The Efficacy of Academic Acceleration for Gifted Minority Students
ERIC Educational Resources Information Center
Lee, Seon-Young; Olszewski-Kubilius, Paula; Peternel, George
2010-01-01
This study supported the use of acceleration for gifted minority students in math. The gifted minority students in this study viewed taking accelerated math courses as exciting and beneficial for preparation for high school and college and particularly liked the challenges they encountered while taking advanced classes. They enjoyed working ahead…
Mereish, Ethan H; O'Cleirigh, Conall; Bradford, Judith B
2014-01-01
Research has documented significant relationships between sexual and gender minority stress and higher rates of suicidality (i.e. suicidal ideation and attempts) and substance use problems. We examined the potential mediating role of substance use problems on the relationship between sexual and gender minority stress (i.e. victimization based on lesbian, gay, bisexual, or transgender identity [LGBT]) and suicidality. A nonprobability sample of LGBT patients from a community health center (N = 1457) ranged in age from 19-70 years. Participants reported history of lifetime suicidal ideation and attempts, substance use problems, as well as experiences of LGBT-based verbal and physical attacks. Substance use problems were a significant partial mediator between LGBT-based victimization and suicidal ideation and between LGBT-based victimization and suicide attempts for sexual and gender minorities. Nuanced gender differences revealed that substance use problems did not significantly mediate the relationship between victimization and suicide attempts for sexual minority men. Substance use problems may be one insidious pathway that partially mediates the risk effects of sexual and gender minority stress on suicidality. Substances might be a temporary and deleterious coping resource in response to LGBT-based victimization, which have serious effects on suicidal ideation and behaviors.
Mereish, Ethan H.; O'Cleirigh, C; Bradford, Judith B.
2013-01-01
Research has documented significant relationships between sexual and gender minority stress and higher rates of suicidality (i.e., suicidal ideation and attempts) and substance use problems. We examined the potential mediating role of substance use problems on the relationship between sexual and gender minority stress (i.e., victimization based on lesbian, gay, bisexual, or transgender identity; LGBT) and suicidality. A non-probability sample of LGBT patients from a community health center (N = 1457) ranged in age 19 to 70 years. Participants reported history of lifetime suicidal ideation and attempts, and substance use problems, as well as experiences of LGBT-based verbal and physical attacks. Substance use problems were a significant partial mediator between LGBT-based victimization and suicidal ideation and between LGBT-based victimization and suicide attempts for sexual and gender minorities. Nuanced gender differences revealed that substance use problems did not significantly mediate the relationship between victimization and suicide attempts for sexual minority men. Substance use problems may be one insidious pathway that partially mediates the risk effects of sexual and gender minority stress on suicidality. Substances might be a temporary and deleterious coping resource in response to LGBT-based victimization, which have serious effects on suicidal ideation and behaviors. PMID:23535038
Transforming graph states using single-qubit operations.
Dahlberg, Axel; Wehner, Stephanie
2018-07-13
Stabilizer states form an important class of states in quantum information, and are of central importance in quantum error correction. Here, we provide an algorithm for deciding whether one stabilizer (target) state can be obtained from another stabilizer (source) state by single-qubit Clifford operations (LC), single-qubit Pauli measurements (LPM) and classical communication (CC) between sites holding the individual qubits. What is more, we provide a recipe to obtain the sequence of LC+LPM+CC operations which prepare the desired target state from the source state, and show how these operations can be applied in parallel to reach the target state in constant time. Our algorithm has applications in quantum networks, quantum computing, and can also serve as a design tool-for example, to find transformations between quantum error correcting codes. We provide a software implementation of our algorithm that makes this tool easier to apply. A key insight leading to our algorithm is to show that the problem is equivalent to one in graph theory, which is to decide whether some graph G ' is a vertex-minor of another graph G The vertex-minor problem is, in general, [Formula: see text]-Complete, but can be solved efficiently on graphs which are not too complex. A measure of the complexity of a graph is the rank-width which equals the Schmidt-rank width of a subclass of stabilizer states called graph states, and thus intuitively is a measure of entanglement. Here, we show that the vertex-minor problem can be solved in time O (| G | 3 ), where | G | is the size of the graph G , whenever the rank-width of G and the size of G ' are bounded. Our algorithm is based on techniques by Courcelle for solving fixed parameter tractable problems, where here the relevant fixed parameter is the rank width. The second half of this paper serves as an accessible but far from exhausting introduction to these concepts, that could be useful for many other problems in quantum information.This article is part of a discussion meeting issue 'Foundations of quantum mechanics and their impact on contemporary society'. © 2018 The Author(s).
Feinstein, Brian A; Newcomb, Michael E
2016-09-01
Young men who have sex with men (YMSM) report higher rates of substance use than their heterosexual peers and minority stress has been posited as a risk factor for substance use. The associations between specific types of minority stress and substance use have been inconsistent throughout the literature and few studies have examined mechanisms underlying these associations. Drawing on minority stress theory and the motivational model of alcohol use, we propose that one mechanism underlying these associations may be people's motivations for using substances, including using substances to cope with negative emotions and to enhance pleasure. The goals of the current study were: (1) to examine the associations among minority stressors, substance use motives, and substance use problems; and (2) to examine substance use motives as mediators of the associations between minority stressors and substance use problems. Baseline self-report data were used from a cohort of 370 YMSM enrolled in a larger study of substance use and sexual behavior. Results indicated that using marijuana to cope mediated the association between victimization and marijuana use problems. Using other drugs to cope mediated the associations between victimization and drug use problems and between internalized stigma and drug use problems. Drinking to cope and to enhance pleasure mediated the association between internalized stigma and alcohol use problems. In sum, substance use motives, especially using substances to cope, act as mechanisms through which certain types of minority stress influence substance use problems among YMSM.
Predicting discharge mortality after acute ischemic stroke using balanced data.
Ho, King Chung; Speier, William; El-Saden, Suzie; Liebeskind, David S; Saver, Jeffery L; Bui, Alex A T; Arnold, Corey W
2014-01-01
Several models have been developed to predict stroke outcomes (e.g., stroke mortality, patient dependence, etc.) in recent decades. However, there is little discussion regarding the problem of between-class imbalance in stroke datasets, which leads to prediction bias and decreased performance. In this paper, we demonstrate the use of the Synthetic Minority Over-sampling Technique to overcome such problems. We also compare state of the art machine learning methods and construct a six-variable support vector machine (SVM) model to predict stroke mortality at discharge. Finally, we discuss how the identification of a reduced feature set allowed us to identify additional cases in our research database for validation testing. Our classifier achieved a c-statistic of 0.865 on the cross-validated dataset, demonstrating good classification performance using a reduced set of variables.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Whitlow, B.
Family science is an informal science education program designed to teach science skills by having children and parents learn and enjoy science together. Aimed at addressing the underrepresentation of women and ethnic and racial minorities in science-based careers, FAMILY SCIENCE involves parents and children in kindergarten through eighth grade in science activities that demonstrate the role science plays in their daily life and future. Family involvement is the key to the program`s effectiveness. Family classes are usually offered in a series of one- to two-hour class meetings for parents and their children after school, evenings, and weekends. During classes, parentsmore » and children work in pairs and small groups to solve problems, work cooperatively, and talk science. The activities provide experiences for the entire family that build skills, confidence, and interest in science. In addition, guest speakers and career activities illustrate for parents in the workforce the significance of math and science in their own jobs, and for kids, it highlights the diversity of jobs and the relevance of math and science.« less
The Problem of Science Education in Minority Areas--Based on a Study in Gansu Province of China
ERIC Educational Resources Information Center
Liang, Bai
2017-01-01
After 60 years of development, minority education not only has made great achievements in China, but also faces many problems. Among them is the problem of science education. The students learning in high school in the basic education in minority areas have faced particular difficulties in learning science. The teaching quality is not high,…
Science education in a bilingual class: problematising a translational practice
NASA Astrophysics Data System (ADS)
Ünsal, Zeynep; Jakobson, Britt; Molander, Bengt-Olov; Wickman, Per-Olof
2016-10-01
In this article we examine how bilingual students construe relations between everyday language and the language of science. Studies concerning bilingual students language use in science class have mainly been conducted in settings where both the teacher and the students speak the same minority language. In this study data was collected in a class consisting of students aged 13-14. All students had Turkish as their minority language, whereas the teacher's minority language was Bosnian. The class was observed when they were working with acids and bases. In addition, the students were interviewed in groups. They were asked about how they use their languages during science lessons and then asked to describe and explain scientific phenomena and processes that had been a part of the observed lessons. For the analysis, practical epistemology analysis and the theory of translanguaging were used. The results show how the students' everyday language repertoire may limit their possibilities to make meaning of science. In particular, the teacher's practice of facilitating and supporting students' understanding of science content by relating it to concrete examples took another direction since the everyday words he used were not a part of the students' language repertoire. The study also shows how the students used their minority language as a resource to translate words from Swedish to Turkish in order to proceed with the science activities. However, translating scientific concepts was problematic and led to the students' descriptions of the concepts not being in line with how they are viewed in science. Finally, the study also demonstrates how monolingual exams may limit bilingual students' achievements in science. The study contributes by presenting and discussing circumstances that need to be taken into consideration when planning and conducting science lessons in classes where the teacher and the student do not share the same minority language.
Was Part D a giveaway to the pharmaceutical industry?
Newhouse, Joseph P; Seiguer, Erica; Frank, Richard G
2007-01-01
The Medicare Modernization Act (MMA) prohibited the government from negotiating drug prices, a feature that the act's critics characterize as a giveaway to the drug industry. Instead of the government negotiating to keep prices down, the act relies on competition among drug companies to obtain business from private insurers; yet, competition cannot be effective when there are no close clinical substitutes. In the past few years, the rate of introduction of first-in-class drugs has been low; if this continues, the prohibition on negotiation may be only a minor problem. However, if the prior rate of introduction resumes, the government may find itself with unacceptable expenditure levels.
Addressing chronic operational issues at the W. M. Keck Observatory
NASA Astrophysics Data System (ADS)
Nordin, Tom; Matsuda, Richard
2016-07-01
The W. M. Keck Observatory (WMKO) has a good track record at addressing large critical faults which impact observing. Our performance tracking and correcting chronic minor faults has been mixed, yet this class of problems has a significant negative impact on scientific productivity and staff effectiveness. We have taken steps to address this shortcoming. This paper outlines the creation of a program to identify, categorize and rank these chronic operational issues, track them over time, and develop management options for their resolution. The success of the program at identifying these chronic operational issues and the advantages of dedicating observatory resources to this endeavor are presented.
ERIC Educational Resources Information Center
Gelb, Steven A.
The paper reviews the history of assigning linguistic minority students to special education classes. The review begins with the Darwinistic view of J. Down who noted that the existence of "idiots" in European families was a throwback to lower developmental stages characteristic of the "Mongol race." Minority language groups and the disabled were…
Kolkata Paise Restaurant Problem: An Introduction
NASA Astrophysics Data System (ADS)
Ghosh, Asim; Biswas, Soumyajyoti; Chatterjee, Arnab; Chakrabarti, Anindya Sundar; Naskar, Tapan; Mitra, Manipushpak; Chakrabarti, Bikas K.
We discuss several stochastic optimization strategies in games with many players having large number of choices (Kolkata Paise Restaurant Problem) and two choices (minority game problem). It is seen that a stochastic crowd avoiding strategy gives very efficient utilization in KPR problem. A slightly modified strategy in the minority game problem gives full utilization but the dynamics stops after reaching full efficiency, thereby making the utilization helpful for only about half of the population (those in minority). We further discuss the ways in which the dynamics may be continued and the utilization becomes effective for all the agents keeping fluctuation arbitrarily small.
Yanaka, Saeko; Ueno, Takamasa; Shi, Yi; Qi, Jianxun; Gao, George F.; Tsumoto, Kouhei; Sugase, Kenji
2014-01-01
In immune-mediated control of pathogens, human leukocyte antigen (HLA) class I presents various antigenic peptides to CD8+ T-cells. Long-lived peptide presentation is important for efficient antigen-specific T-cell activation. Presentation time depends on the peptide sequence and the stability of the peptide-HLA complex (pHLA). However, the determinant of peptide-dependent pHLA stability remains elusive. Here, to reveal the pHLA stabilization mechanism, we examined the crystal structures of an HLA class I allomorph in complex with HIV-derived peptides and evaluated site-specific conformational fluctuations using NMR. Although the crystal structures of various pHLAs were almost identical independent of the peptides, fluctuation analyses identified a peptide-dependent minor state that would be more tightly packed toward the peptide. The minor population correlated well with the thermostability and cell surface presentation of pHLA, indicating that this newly identified minor state is important for stabilizing the pHLA and facilitating T-cell recognition. PMID:25028510
Special Problems and Procedures for Identifying Minority Gifted Students.
ERIC Educational Resources Information Center
Bernal, Ernest M.
The author reviews the key problems associated with generally accepted practices for identifying the gifted from the perspective of minority gifted students, particularly the gifted bilingual child; and presents some alternative approaches for testing. Noted among the shortcomings of testing minority students are that standardized tests are not…
Mental and Physical Health among Homeless Sexual and Gender Minorities in a Major Urban US City.
Flentje, Annesa; Leon, Armando; Carrico, Adam; Zheng, Debbie; Dilley, James
2016-12-01
Sexual and gender minorities have been shown to have greater rates of mental health, substance use disorders, and specific types of health problems compared to heterosexuals. Among the homeless population in several US urban areas, sexual and gender minorities are overrepresented but few studies have examined the mental and physical health status of homeless sexual and gender minorities, with studies on homeless gender minorities being particularly hard to find. Using survey data obtained from the city and county of San Francisco (2015 Homeless Survey), this study examined differences in causes of homelessness, physical and mental health problems, and domestic violence among homeless sexual and gender minorities and their heterosexual and cisgender (i.e., non-transgender) counterparts, respectively. Lesbians and bisexual women, and gay and bisexual men did not differ from their cisgender heterosexual counterparts. Cisgender men who identified as queer or "other" in response to sexual orientation questions had higher rates of psychiatric problems and posttraumatic stress disorder, while cisgender women who identified as queer or "other" had higher rates of psychiatric problems and drug and alcohol use. Transgender men who were homeless were found to be particularly at risk for physical health problems, mental health problems, and domestic violence or abuse. Transgender women were more likely to report posttraumatic stress disorder. This study suggests that transgender men and cisgender sexual minority men and women who identify as queer or "other" are groups among the homeless that may benefit from increased outreach and services.
ERIC Educational Resources Information Center
Burton, Nancy W.; Whitman, Nancy Burgess; Yepes-Baraya, Mario; Cline, Frederick; Kim, R. Myung-in
2002-01-01
This project described the characteristics and teaching behaviors of those successfully teaching AP® Calculus AB and AP English Literature and Composition to underrepresented minority students. Its purpose was to assist educators in improving the participation and performance of underrepresented minority students in AP classes. Study results…
ERIC Educational Resources Information Center
Santa Cruz County Superintendent of Schools, CA.
Presented is the first component, Program Organization, of a special day class educational program emphasizing rehabilitation, remedial instruction, and return to regular school programs for drug dependent minors. Included are statistics on drug use in California and the administrative code under which drug dependent minors are eligible for…
ERIC Educational Resources Information Center
Mei, Wu; Parkay, Forrest W.; Pitre, Paul E.
2016-01-01
This study examines the academic performance and "engagement" of ethnic minority students at a leading university in southwest China. Results indicate that ethnic minority students have significantly lower grades, lower class ranking, and have failed more courses than majority Han students. Results also show that the level of…
Robust Algorithms for on Minor-Free Graphs Based on the Sherali-Adams Hierarchy
NASA Astrophysics Data System (ADS)
Magen, Avner; Moharrami, Mohammad
This work provides a Linear Programming-based Polynomial Time Approximation Scheme (PTAS) for two classical NP-hard problems on graphs when the input graph is guaranteed to be planar, or more generally Minor Free. The algorithm applies a sufficiently large number (some function of when approximation is required) of rounds of the so-called Sherali-Adams Lift-and-Project system. needed to obtain a -approximation, where f is some function that depends only on the graph that should be avoided as a minor. The problem we discuss are the well-studied problems, the and problems. An curious fact we expose is that in the world of minor-free graph, the is harder in some sense than the.
78 FR 60745 - Hazardous Materials: Minor Editorial Corrections and Clarifications (RRR)
Federal Register 2010, 2011, 2012, 2013, 2014
2013-10-02
... 173.62 This section provides packaging instructions for Class 1 explosive materials. Paragraph (b) of... requirements for approval of special form Class 7 (radioactive) materials. Paragraph (d) of this section notes... activity of special form Class 7 (radioactive) material permitted in a Type A package equals the maximum...
The Jensen Controversy: II. Cultural Myopia
ERIC Educational Resources Information Center
Cameron, Howard K.
1970-01-01
Recommends moratorium on testing minority group members with existing standardized measuring instruments, a reassessment of the validity of standardized tests and an appraisal of testing practices with minority groups whose cultural backgrounds vary significantly from that of the middle class white norm. (Author)
Federal Register 2010, 2011, 2012, 2013, 2014
2010-01-26
... airspace at Ocala International Airport-Jim Taylor Field, Ocala, FL. This action also makes a minor... International Airport--Jim Taylor Field, Ocala, FL, published in the Federal Register June 24, 2009 (74 FR 29939... radius in the Class E5 description for Ocala International Airport--Jim Taylor Field was stated...
NASA Astrophysics Data System (ADS)
Li, Hui; Yu, Jun-Ling; Yu, Le-An; Sun, Jie
2014-05-01
Case-based reasoning (CBR) is one of the main forecasting methods in business forecasting, which performs well in prediction and holds the ability of giving explanations for the results. In business failure prediction (BFP), the number of failed enterprises is relatively small, compared with the number of non-failed ones. However, the loss is huge when an enterprise fails. Therefore, it is necessary to develop methods (trained on imbalanced samples) which forecast well for this small proportion of failed enterprises and performs accurately on total accuracy meanwhile. Commonly used methods constructed on the assumption of balanced samples do not perform well in predicting minority samples on imbalanced samples consisting of the minority/failed enterprises and the majority/non-failed ones. This article develops a new method called clustering-based CBR (CBCBR), which integrates clustering analysis, an unsupervised process, with CBR, a supervised process, to enhance the efficiency of retrieving information from both minority and majority in CBR. In CBCBR, various case classes are firstly generated through hierarchical clustering inside stored experienced cases, and class centres are calculated out by integrating cases information in the same clustered class. When predicting the label of a target case, its nearest clustered case class is firstly retrieved by ranking similarities between the target case and each clustered case class centre. Then, nearest neighbours of the target case in the determined clustered case class are retrieved. Finally, labels of the nearest experienced cases are used in prediction. In the empirical experiment with two imbalanced samples from China, the performance of CBCBR was compared with the classical CBR, a support vector machine, a logistic regression and a multi-variant discriminate analysis. The results show that compared with the other four methods, CBCBR performed significantly better in terms of sensitivity for identifying the minority samples and generated high total accuracy meanwhile. The proposed approach makes CBR useful in imbalanced forecasting.
Reflections on the Difficulties of Educational Development in Minority Areas of Western China
ERIC Educational Resources Information Center
Jian, Wang
2017-01-01
At present, the development of education in western China's rural and ethnic minority areas faces problems including the management of boarding schools, the education of left-behind children, and changing the functions of schools. Resolving these problems requires not only changing traditional ways of thinking, but also placing minority education…
ERIC Educational Resources Information Center
Kozma, Tamas; Radacsi, Imre
2000-01-01
Addresses the problem of educating minorities when the political borders of European nation-states fail to coincide with ethno-linguistic realities. Suggests two solutions to problems of higher education for ethno-linguistic minorities: (1) multilingual universities, and (2) regional cooperation in higher education in border areas. (Author/DB)
Lewis, Robin J; Mason, Tyler B; Winstead, Barbara A; Kelley, Michelle L
2017-01-01
This study proposed and tested the first conceptual model of sexual minority specific (discrimination, internalized homophobia) and more general risk factors (perpetrator and partner alcohol use, anger, relationship satisfaction) for intimate partner violence among partnered lesbian women. Self-identified lesbian women ( N =1048) were recruited from online market research panels. Participants completed an online survey that included measures of minority stress, anger, alcohol use and alcohol-related problems, relationship satisfaction, psychological aggression, and physical violence. The model demonstrated good fit and significant links from sexual minority discrimination to internalized homophobia and anger, from internalized homophobia to anger and alcohol problems, and from alcohol problems to intimate partner violence. Partner alcohol use predicted partner physical violence. Relationship dissatisfaction was associated with physical violence via psychological aggression. Physical violence was bidirectional. Minority stress, anger, alcohol use and alcohol-related problems play an important role in perpetration of psychological aggression and physical violence in lesbian women's intimate partner relationships. The results of this study provide evidence of potentially modifiable sexual minority specific and more general risk factors for lesbian women's partner violence.
Tic-related school problems: impact on functioning, accommodations, and interventions.
Packer, Leslie E
2005-11-01
Children with Tourette's syndrome (TS) are statistically overrepresented in special education classes; however, the extent to which tics contribute to such placement is unclear. In this article, the results of a survey of parents or guardians of 71 children and adolescents with TS are described within the broader context of discussing the impact of tics and educational practices. One half of the respondents reported moderate to significant tic-related academic impact, and 48% reported moderate to significant tic-related peer problems. Peer education and in-school counseling were generally not offered nor provided. In the minority of cases where behavioral interventions for tics were reported, contingent aversive consequences were reported to be ineffective or counterproductive, while positive reinforcement for modifying tics reportedly produced some successful results. The identification of research-validated academic accommodations and increased involvement of school psychologists are suggested as necessary and potentially helpful supports for students with TS and their teachers.
Preterm birth and developmental problems in the preschool age. Part I: minor motor problems.
Ferrari, Fabrizio; Gallo, Claudio; Pugliese, Marisa; Guidotti, Isotta; Gavioli, Sara; Coccolini, Elena; Zagni, Paola; Della Casa, Elisa; Rossi, Cecilia; Lugli, Licia; Todeschini, Alessandra; Ori, Luca; Bertoncelli, Natascia
2012-11-01
Nearly half of very preterm (VP) and extremely preterm (EP) infants suffers from minor disabilities. The paper overviews the literature dealing with motor problems other than cerebral palsy (CP) during infancy and preschool age. The term "minor motor problems" indicates a wide spectrum of motor disorders other than CP; "minor" does not mean "minimal", as a relevant proportion of the preterm infants will develop academic and behavioural problems at school age. Early onset disorders consist of abnormal general movements (GMs), transient dystonia and postural instability; these conditions usually fade during the first months. They were underestimated in the past; recently, qualitative assessment of GMs using Prechtl's method has become a major item of the neurological examination. Late onset disorders include developmental coordination disorder (DCD) and/or minor neurological dysfunction (MND): both terms cover partly overlapping problems. Simple MND (MND-1) and complex MND (MND-2) can be identified and MND-2 gives a higher risk for learning and behavioural disorders. A relationship between the quality of GMs and MND in childhood has been recently described. The Touwen infant neurological examination (TINE) can reliably detect neurological signs of MND even in infancy. However, the prognostic value of these disorders requires further investigations.
... develop only minor neurological problems and have normal intelligence, while others may be severely disabled and die ... develop only minor neurological problems and have normal intelligence, while others may be severely disabled and die ...
ERIC Educational Resources Information Center
Santa Cruz County Superintendent of Schools, CA.
Presented is the third component, Educational Simulations, of a special day class educational program for drug dependent minors. One objective of the project is said to have been the identification of instructional methods and materials suited to drug dependent minors. Educational games and simulations designed to provide practice in reading and…
ERIC Educational Resources Information Center
Hilt, Line Torbjørnsen
2017-01-01
Based upon fieldwork in two upper secondary schools in Norway, this article offers an analysis of inclusion and exclusion processes for newly arrived minority language students. Minority language students are defined by policy as students who have a different mother tongue than the Norwegian and Sami languages, and students who are newly arrived…
ERIC Educational Resources Information Center
Armstrong, Timothy Currie
2014-01-01
Parents who enroll their children to be educated through a threatened minority language frequently do not speak that language themselves and classes in the language are sometimes offered to parents in the expectation that this will help them to support their children's education and to use the minority language in the home. Providing…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Sara, T.S.; Jones, M. Jr.
1986-08-01
The project being reported in this document had three components: (1) a research project to carry out cost-benefit analysis of an ethyl alcohol plant at Tuskegee University, (2) seminars to improve the high-technology capabilities of minority persons, and (3) a class in energy management. The report provides a background on the three components listed above. The results from the research on the ethyl alcohol plant, are discussed, along with the seminars, and details of the energy management class.
Depression: Key to Minority Underachievement.
ERIC Educational Resources Information Center
Rouse, Nancy I.
1980-01-01
This paper explores in depth the possibility that learned helplessness and depression may explain the gap in academic performance between middle-class children and children from minority and poverty backgrounds. Emphasis is placed on Black Americans, because more data is available about this group. (Author/SJL)
Picconi, Pietro; Hind, Charlotte; Jamshidi, Shirin; Nahar, Kazi; Clifford, Melanie; Wand, Matthew E; Sutton, J Mark; Rahman, Khondaker Miraz
2017-07-27
A new class of nontoxic triaryl benzimidazole compounds, derived from existing classes of DNA minor groove binders, were designed, synthesized, and evaluated for their antibacterial activity against multidrug resistant (MDR) Gram-positive and Gram-negative species. Molecular modeling experiments suggest that the newly synthesized class cannot be accommodated within the minor groove of DNA due to a change in the shape of the molecules. Compounds 8, 13, and 14 were found to be the most active of the series, with MICs in the range of 0.5-4 μg/mL against the MDR Staphylococci and Enterococci species. Compound 13 showed moderate activity against the MDR Gram-negative strains, with MICs in the range of 16-32 μg/mL. Active compounds showed a bactericidal mode of action, and a mechanistic study suggested the inhibition of bacterial gyrase as the mechanism of action (MOA) of this chemical class. The MOA was further supported by the molecular modeling study.
Sattler, Frank A.; Wagner, Ulrich; Christiansen, Hanna
2016-01-01
Objective According to epidemiological studies, gay men are at a higher risk of mental disorders than heterosexual men. In the current study, the minority stress theory was investigated in German gay men: 1) it was hypothesized that minority stressors would positively predict mental health problems and that 2) group-level coping and social support variables would moderate these predictions negatively. Methods Data from 1,188 German self-identified gay men were collected online. The questionnaire included items about socio-demographics, minority stress (victimization, rejection sensitivity, and internalized homonegativity), group-level coping (disclosure of sexual orientation, homopositivity, gay affirmation, gay rights support, and gay rights activism), and social support (gay social support and non-gay social support). A moderated multiple regression was conducted. Results Minority stressors positively predicted mental health problems. Group-level coping did not interact with minority stressors, with the exception of disclosure and homopositivity interacting marginally with some minority stressors. Further, only two interactions were found for social support variables and minority stress, one of them marginal. Gay and non-gay social support inversely predicted mental health problems. In addition, disclosure and homopositivity marginally predicted mental health problems. Conclusions The findings imply that the minority stress theory should be modified. Disclosure does not have a relevant effect on mental health, while social support variables directly influence mental health of gay men. Group-level coping does not interact with minority stressors relevantly, and only one relevant interaction between social support and minority stress was found. Further longitudinal or experimental replication is needed before transferring the results to mental health interventions and prevention strategies for gay men. PMID:26943785
Sattler, Frank A; Wagner, Ulrich; Christiansen, Hanna
2016-01-01
According to epidemiological studies, gay men are at a higher risk of mental disorders than heterosexual men. In the current study, the minority stress theory was investigated in German gay men: 1) it was hypothesized that minority stressors would positively predict mental health problems and that 2) group-level coping and social support variables would moderate these predictions negatively. Data from 1,188 German self-identified gay men were collected online. The questionnaire included items about socio-demographics, minority stress (victimization, rejection sensitivity, and internalized homonegativity), group-level coping (disclosure of sexual orientation, homopositivity, gay affirmation, gay rights support, and gay rights activism), and social support (gay social support and non-gay social support). A moderated multiple regression was conducted. Minority stressors positively predicted mental health problems. Group-level coping did not interact with minority stressors, with the exception of disclosure and homopositivity interacting marginally with some minority stressors. Further, only two interactions were found for social support variables and minority stress, one of them marginal. Gay and non-gay social support inversely predicted mental health problems. In addition, disclosure and homopositivity marginally predicted mental health problems. The findings imply that the minority stress theory should be modified. Disclosure does not have a relevant effect on mental health, while social support variables directly influence mental health of gay men. Group-level coping does not interact with minority stressors relevantly, and only one relevant interaction between social support and minority stress was found. Further longitudinal or experimental replication is needed before transferring the results to mental health interventions and prevention strategies for gay men.
Vision and the Achievement Gap among Urban Minority Youth
ERIC Educational Resources Information Center
Basch, Charles E.
2011-01-01
Objectives: To outline the prevalence and disparities of vision problems among school-aged urban minority youth, causal pathways through which vision problems adversely affects academic achievement, and proven or promising approaches for schools to address these problems. Methods: Literature review. Results: More than 20% of school-aged youth have…
Lewis, Robin J.; Mason, Tyler B.; Winstead, Barbara A.; Kelley, Michelle L.
2015-01-01
Objective This study proposed and tested the first conceptual model of sexual minority specific (discrimination, internalized homophobia) and more general risk factors (perpetrator and partner alcohol use, anger, relationship satisfaction) for intimate partner violence among partnered lesbian women. Method Self-identified lesbian women (N=1048) were recruited from online market research panels. Participants completed an online survey that included measures of minority stress, anger, alcohol use and alcohol-related problems, relationship satisfaction, psychological aggression, and physical violence. Results The model demonstrated good fit and significant links from sexual minority discrimination to internalized homophobia and anger, from internalized homophobia to anger and alcohol problems, and from alcohol problems to intimate partner violence. Partner alcohol use predicted partner physical violence. Relationship dissatisfaction was associated with physical violence via psychological aggression. Physical violence was bidirectional. Conclusions Minority stress, anger, alcohol use and alcohol-related problems play an important role in perpetration of psychological aggression and physical violence in lesbian women's intimate partner relationships. The results of this study provide evidence of potentially modifiable sexual minority specific and more general risk factors for lesbian women's partner violence. PMID:28239508
Code of Federal Regulations, 2013 CFR
2013-10-01
... 47 Telecommunication 4 2013-10-01 2013-10-01 false Processing of TV broadcast, Class A TV... Rules Applicable to All Broadcast Stations § 73.3572 Processing of TV broadcast, Class A TV broadcast... considered minor only if the change(s) will not increase the signal range of the Class A TV, low power TV or...
Code of Federal Regulations, 2012 CFR
2012-10-01
... 47 Telecommunication 4 2012-10-01 2012-10-01 false Processing of TV broadcast, Class A TV... Rules Applicable to All Broadcast Stations § 73.3572 Processing of TV broadcast, Class A TV broadcast... considered minor only if the change(s) will not increase the signal range of the Class A TV, low power TV or...
Code of Federal Regulations, 2011 CFR
2011-10-01
... 47 Telecommunication 4 2011-10-01 2011-10-01 false Processing of TV broadcast, Class A TV... Rules Applicable to All Broadcast Stations § 73.3572 Processing of TV broadcast, Class A TV broadcast... considered minor only if the change(s) will not increase the signal range of the Class A TV, low power TV or...
Code of Federal Regulations, 2014 CFR
2014-10-01
... 47 Telecommunication 4 2014-10-01 2014-10-01 false Processing of TV broadcast, Class A TV... Rules Applicable to All Broadcast Stations § 73.3572 Processing of TV broadcast, Class A TV broadcast... considered minor only if the change(s) will not increase the signal range of the Class A TV, low power TV or...
Cross-Cultural Socialization at Tibetan Classes (Schools) in the Interior: An Empirical Analysis
ERIC Educational Resources Information Center
Guo, Longyan
2010-01-01
Education by means of the Tibetan Classes (schools) in "neidi," or China's interior regions (or the Tibet Class), was a creative measure in the history of China's ethnic minority education, and the cross-cultural growth and experiences of the Tibetan students as they went to school in China's interior regions was of special significance…
Experimental Estimates of the Impacts of Class Size on Test Scores: Robustness and Heterogeneity
ERIC Educational Resources Information Center
Ding, Weili; Lehrer, Steven F.
2011-01-01
Proponents of class size reductions (CSRs) draw heavily on the results from Project Student/Teacher Achievement Ratio to support their initiatives. Adding to the political appeal of these initiative are reports that minority and economically disadvantaged students received the largest benefits from smaller classes. We extend this research in two…
Millennium milestones: looking back, moving forward in your research career.
Harden, J T
2000-01-01
The author discusses the mission of the National Institute on Aging (NIA), Office of Special Populations, the trends in appropriations, use of census data and the need to disentangle the social and political meaning of race from the presumed biological meaning, the potential effect of slavery on the health of African Americans, Federal racial and ethnic minority initiatives, definitions of race, culture, ethnicity, class and racism; formal recommendations from the NIA review of minority aging research; and NIA training and career development opportunities for minorities. Lastly, the author discusses minority aging research, health disparities and strategies for recruiting minorities into aging research.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hamilton, Kathleen E.; Humble, Travis S.
Using quantum annealing to solve an optimization problem requires minor embedding a logic graph into a known hardware graph. We introduce the minor set cover (MSC) of a known graph GG : a subset of graph minors which contain any remaining minor of the graph as a subgraph, in an effort to reduce the complexity of the minor embedding problem. Any graph that can be embedded into GG will be embeddable into a member of the MSC. Focusing on embedding into the hardware graph of commercially available quantum annealers, we establish the MSC for a particular known virtual hardware, whichmore » is a complete bipartite graph. Furthermore, we show that the complete bipartite graph K N,N has a MSC of N minors, from which K N+1 is identified as the largest clique minor of K N,N. In the case of determining the largest clique minor of hardware with faults we briefly discussed this open question.« less
Alcohol-Related Problems among Sexual Minority Women
Hughes, Tonda
2012-01-01
In this article I describe the historical context for research on sexual minority women’s drinking, including the age-old tendency to link homosexuality and alcoholism; I summarize gaps and limitations that characterized much of the research on sexual minority women’s drinking over the past several decades; and I review recent literature to highlight progress in the field—with a particular focus on my own research related to risk and protective factors for heavy drinking and drinking-related problems among sexual minority women. I conclude with a discussion of barriers to treatment for sexual minority women and recommendations for substance abuse treatment providers. PMID:22470226
ERIC Educational Resources Information Center
Hood, Otis D., Jr.
2012-01-01
National educational assessment organizations present statistical information that an achievement gap exists between White students and students of color. This achievement gap closely relates to students representing lower SES conditions. This study examined the lack of achievement for ethnic minorities in the field of mathematics using an…
ERIC Educational Resources Information Center
Jordt, Hannah; Eddy, Sarah L.; Brazil, Riley; Lau, Ignatius; Mann, Chelsea; Brownell, Sara E.; King, Katherine; Freeman, Scott
2017-01-01
Achievement gaps between underrepresented minority (URM) students and their white peers in college science, technology, engineering, and mathematics classrooms are persistent across many white-majority institutions of higher education. Attempts to reduce this phenomenon of underperformance through increasing classroom structure via active learning…
75 FR 30295 - Modification of Class E Airspace; West Yellowstone, MT
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-01
... Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at West Yellowstone Airport. This will... also includes minor adjustments in the legal description of the airspace. DATES: Effective date, 0901... executing new RNAV (GPS) SIAP's at the airport. This rule also makes minor changes to the legal description...
Classification of prostate cancer grade using temporal ultrasound: in vivo feasibility study
NASA Astrophysics Data System (ADS)
Ghavidel, Sahar; Imani, Farhad; Khallaghi, Siavash; Gibson, Eli; Khojaste, Amir; Gaed, Mena; Moussa, Madeleine; Gomez, Jose A.; Siemens, D. Robert; Leveridge, Michael; Chang, Silvia; Fenster, Aaron; Ward, Aaron D.; Abolmaesumi, Purang; Mousavi, Parvin
2016-03-01
Temporal ultrasound has been shown to have high classification accuracy in differentiating cancer from benign tissue. In this paper, we extend the temporal ultrasound method to classify lower grade Prostate Cancer (PCa) from all other grades. We use a group of nine patients with mostly lower grade PCa, where cancerous regions are also limited. A critical challenge is to train a classifier with limited aggressive cancerous tissue compared to low grade cancerous tissue. To resolve the problem of imbalanced data, we use Synthetic Minority Oversampling Technique (SMOTE) to generate synthetic samples for the minority class. We calculate spectral features of temporal ultrasound data and perform feature selection using Random Forests. In leave-one-patient-out cross-validation strategy, an area under receiver operating characteristic curve (AUC) of 0.74 is achieved with overall sensitivity and specificity of 70%. Using an unsupervised learning approach prior to proposed method improves sensitivity and AUC to 80% and 0.79. This work represents promising results to classify lower and higher grade PCa with limited cancerous training samples, using temporal ultrasound.
Urban Education: Its Conceptual and Functional Domains.
ERIC Educational Resources Information Center
Gordon, Edmund G.
Because of the heavy concentration of low ethnic status minorities dwelling in cities, urban education has been equated with the problems of low status persons. However, there are problems that are peculiar to education as it is influenced by urban development that go beyond the problems of special ethnic, low status minority groups. The problems…
Minor psychological problems in a multiracial student population in Rhodesia.
Smith, M E
1978-12-16
Experience in the student health service at the multiracial University of Rhodesia suggests that, although the aetiology and manifestations of minor psychological problems are affected by cultural factors, similarities between students of different races are more marked than are divergencies. The students' problems are similar to those reported from universities in other countries.
Quality of Life and Self-Esteem of Female Orthognathic Surgery Patients.
Jung, Min-Ho
2016-06-01
To evaluate the effect of severe malocclusion requiring orthognathic surgery on the self-esteem (SE) and quality of life (QOL) of female adult patients undergoing orthognathic surgery compared with a group with minor malocclusions seeking only orthodontic treatment. Female patients, aged 18 to 30 years, who had presented for an orthodontic consultation for correction of a malocclusion were enrolled during an 18-month period. In group 1, all the patients required 2-jaw surgery, and they were subdivided into those with a Class II or Class III malocclusion. This group was further subdivided into those with and without clinically significant asymmetry. A second comparison group was selected. These patients had minor malocclusion. Group 2 (the minor malocclusion group; MMG) included patients with a Class I molar relationship with less than 5 mm on the irregularity index in the upper anterior teeth. Each participant completed the Rosenberg's self-esteem scale (RSE) and the Orthognathic Quality of Life Questionnaire (OQLQ) before starting treatment. The RSE and OQLQ measurements were compared using 1-way analysis of variance and Scheffe's multiple comparison. The level of statistical significance was set at P < .05. The MMG group (n = 52) showed significantly better RSE and OQOL values compared with those with Class II (n = 37) and Class III (n = 47) malocclusion (P < .01). In the OQLQ measurements, the social aspects, aesthetics, and oral function scores were also better in the MMG group (P < .01). Only the awareness component did not reveal a significant difference. No significant differences were found in QOL or SE between those with Class II and Class III malocclusion. The influence of asymmetry on the RSE and OQLQ results was not significant in the Class II and III patients. Female adult orthognathic patients showed significant impairments in QOL and SE compared with those with mild malocclusion. Copyright © 2016 The American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
The Vocational Rehabilitation of Minorities [and] Reactions.
ERIC Educational Resources Information Center
Giles, Frank L.; And Others
This paper addresses problems encountered by minorities in accessing the state/federal vocational rehabilitation (VR) system, how minorities have fared in the system, the lack of trained minorities in the VR counseling profession, and a comparison of private-for-profit and state/federal VR programs. Minorities considered include Blacks, Hispanic…
Identifying the minor set cover of dense connected bipartite graphs via random matching edge sets
NASA Astrophysics Data System (ADS)
Hamilton, Kathleen E.; Humble, Travis S.
2017-04-01
Using quantum annealing to solve an optimization problem requires minor embedding a logic graph into a known hardware graph. In an effort to reduce the complexity of the minor embedding problem, we introduce the minor set cover (MSC) of a known graph G: a subset of graph minors which contain any remaining minor of the graph as a subgraph. Any graph that can be embedded into G will be embeddable into a member of the MSC. Focusing on embedding into the hardware graph of commercially available quantum annealers, we establish the MSC for a particular known virtual hardware, which is a complete bipartite graph. We show that the complete bipartite graph K_{N,N} has a MSC of N minors, from which K_{N+1} is identified as the largest clique minor of K_{N,N}. The case of determining the largest clique minor of hardware with faults is briefly discussed but remains an open question.
Identifying the minor set cover of dense connected bipartite graphs via random matching edge sets
Hamilton, Kathleen E.; Humble, Travis S.
2017-02-23
Using quantum annealing to solve an optimization problem requires minor embedding a logic graph into a known hardware graph. We introduce the minor set cover (MSC) of a known graph GG : a subset of graph minors which contain any remaining minor of the graph as a subgraph, in an effort to reduce the complexity of the minor embedding problem. Any graph that can be embedded into GG will be embeddable into a member of the MSC. Focusing on embedding into the hardware graph of commercially available quantum annealers, we establish the MSC for a particular known virtual hardware, whichmore » is a complete bipartite graph. Furthermore, we show that the complete bipartite graph K N,N has a MSC of N minors, from which K N+1 is identified as the largest clique minor of K N,N. In the case of determining the largest clique minor of hardware with faults we briefly discussed this open question.« less
Pham-The, Hai; Casañola-Martin, Gerardo; Garrigues, Teresa; Bermejo, Marival; González-Álvarez, Isabel; Nguyen-Hai, Nam; Cabrera-Pérez, Miguel Ángel; Le-Thi-Thu, Huong
2016-02-01
In many absorption, distribution, metabolism, and excretion (ADME) modeling problems, imbalanced data could negatively affect classification performance of machine learning algorithms. Solutions for handling imbalanced dataset have been proposed, but their application for ADME modeling tasks is underexplored. In this paper, various strategies including cost-sensitive learning and resampling methods were studied to tackle the moderate imbalance problem of a large Caco-2 cell permeability database. Simple physicochemical molecular descriptors were utilized for data modeling. Support vector machine classifiers were constructed and compared using multiple comparison tests. Results showed that the models developed on the basis of resampling strategies displayed better performance than the cost-sensitive classification models, especially in the case of oversampling data where misclassification rates for minority class have values of 0.11 and 0.14 for training and test set, respectively. A consensus model with enhanced applicability domain was subsequently constructed and showed improved performance. This model was used to predict a set of randomly selected high-permeability reference drugs according to the biopharmaceutics classification system. Overall, this study provides a comparison of numerous rebalancing strategies and displays the effectiveness of oversampling methods to deal with imbalanced permeability data problems.
Photographs and Classroom Response Systems in Middle School Astronomy Classes
ERIC Educational Resources Information Center
Lee, Hyunju; Feldman, Allan
2015-01-01
In spite of being readily available, photographs have played a minor and passive role in science classes. In our study, we present an active way of using photographs in classroom discussions with the use of a classroom response system (CRS) in middle school astronomy classes to teach the concepts of day-night and seasonal change. In this new…
ERIC Educational Resources Information Center
Ryu, Minjung
2015-01-01
In the present study, I analyze ethnographic data from a year-long study of two Advanced Placement (AP) Biology classes that enrolled students with diverse racial, ethnic, and linguistic backgrounds. Specifically, I consider participation, positioning, and learning of newcomer Korean students in the focal classes. Building on the notion of figured…
Social Class, Ethnicity and Access to Higher Education in the Four Countries of the UK: 1996-2010
ERIC Educational Resources Information Center
Croxford, Linda; Raffe, David
2014-01-01
This paper compares access to full-time undergraduate higher education (HE) by members of less advantaged social classes and ethnic minorities across the four "home countries" of the UK. It uses data on applicants to HE in selected years from 1996 to 2010. In all home countries students from intermediate and working-class backgrounds…
Mental health differences between German gay and bisexual men and population-based controls.
Sattler, Frank A; Franke, Gabriele H; Christiansen, Hanna
2017-07-21
International studies have revealed that gay and bisexual men present more mental health problems than the general male population. Furthermore, there is evidence that minority stress predicts mental health problems in gay and bisexual men. The aim of the present study is to provide initial data on mental health differences in Germany and to analyze the effect of minority stress. Mental health data on n = 1903 German gay and bisexual men and n = 958 men from a population-based sample were assessed using a shortened version of the SCL-90-S. The mental health of the two samples was compared. Furthermore, a linear regression was conducted for the gay and bisexual sample: mental health was used as the criterion and minority stressors as predictors. As compared to our population sample, gay and bisexual men demonstrated more mental health problems with a moderate effect size. In the regression, minority stress predicted mental health problems in the gay and bisexual sample. We observed pronounced mental health differences between gay and bisexual men versus the population sample. These differences could be at least partly due to the minority stress gay and bisexual men face. Research should focus on how to reduce and cope with minority stress.
Bevaart, Floor; Mieloo, Cathelijne L; Donker, Marianne C H; Jansen, Wilma; Raat, Hein; Verhulst, Frank C; van Oort, Floor V A
2014-05-01
An underrepresentation of ethnic minority children in mental health care settings is consistently reported. Parents of ethnic minority children are, however, less likely to perceive problem behaviour in their children. Our hypothesis was that, as a result of ethnic differences in problem perception, referral to care by a child health professional (CHP) would be lower for 5- to 6-year-old (high-risk) children from ethnic minority backgrounds than for their peers from the ethnic majority (Dutch origin). For 10,951 children in grade two of elementary school, parents and/or teachers completed the Strengths and Difficulties Questionnaire (SDQ) as well as questions on problem perception (PP) and perceived need for professional care (PN). Referral information was obtained from the Electronic Child Records (ECR) for 1,034 of these children. These children had a high (>90th percentile) SDQ score, and were not receiving mental health care. CHP's referred 144 children (14 %) during the routine health assessments. A lower problem perception was reported by parents of ethnic minority children (40-72 %) than by parents of the ethnic majority group (80 %; p < 0.001), but there were no ethnic differences in referral (OR range 0.9-1.9-p > 0.05). No ethnic differences were found for parental PN, nor for teacher's PP or PN. Despite a lower problem perception in ethnic minority parents when compared to ethnic majority parents, no ethnic differences were found in referral of children with problem behaviour in a preventive health care setting.
Annual Survey of Optometric Educational Institutions, 1984-85.
ERIC Educational Resources Information Center
Journal of Optometric Education, 1986
1986-01-01
Tabulations include entering class grade point averages and educational backgrounds, loan and non-loan student financial aid granted by the institutions, resident and nonresident student expenses, full-time male and female enrollment in each class, and minority student enrollment in colleges of optometry. (MSE)
Sex-role stereotyping by high school females in science
NASA Astrophysics Data System (ADS)
Vockell, Edward L.; Lobonc, Susan
Although the participation by females in upper-level occupations and positions has expanded considerably in recent years, science is still considered a masculine career field. The results of this study show that only the physical sciences in particular (not science in general) are clearly viewed as masculine academic areas. Furthermore, the results suggest that the perception by girls of the physical sciences as masculine is much more likely to occur in coed classes than in all-female classes. The results can best be explained by two factors: (1) the attitudes conveyed by teachers and by society may predispose students toward a greater acceptance of women in biology than in the physical sciences; and (2) when girls perceive themselves as a deviant minority in physical science classes, their performance and preference for the physical sciences is reduced, perhaps because of competition and comparison with males. In all-female classes, however, girls are not a deviant minority, and therefore they are able to perform and develop preferences without inhibition.
ERIC Educational Resources Information Center
Dreyer, Lorna M.; Singh, Suzanne A. M.
2016-01-01
This article examines the subjective life experiences of racial minority Xhosa speakers and the factors that contribute to their continued poor academic performance in a previously Whites-only school in South Africa. Vygotskian sociocultural perspective in relation to creating a democratic educational system and Bronfenbrenner's biosystemic theory…
ERIC Educational Resources Information Center
Jensen, Arthur R.
2002-01-01
This book focuses on topics germane to cognitive abilities viewed from a "minority psychology" perspective. The most contentious chapters concern test bias and heredity, with culture, socioeconomic status, and case viewed as the chief explanations for test score differences between social classes and racial and ethnic groups. The reviewer…
Other People's Daughters: Critical Race Feminism and Black Girls' Education
ERIC Educational Resources Information Center
Evans-Winters, Venus E.; Esposito, Jennifer
2010-01-01
In her 1995 article, "Sapphire Bound!", legal scholar Regina Austin calls for minority female scholars in the legal field to straightforwardly, unapologetically, and strategically use their intellectual pursuits to advocate on behalf of poor and working class minority women. Even though Austin is arguing from the perspective of a woman of color,…
... health centers in a low-income, predominantly-minority area of Boston. The participants had moderate to severe chronic low-back pain and significant related impairment. Most were non-White (82 percent), were unemployed or disabled (51 percent), and had annual household incomes of $40, ...
Minority Parents Should Know More about School Culture and Its Impact on Their Children's Education
ERIC Educational Resources Information Center
Vang, Christopher T.
2006-01-01
Many immigrant children encounter many difficulties and challenges in the public school. As a result, countless bilingual and limited-English-proficient students are lagging behind their peers. Minority students are labeled and treated differently from their classmates. Although equally capable, they are receiving a second-class education. The…
Gender Stratified Monopoly: Why Do I Earn Less and Pay More?
ERIC Educational Resources Information Center
Smith, Stacy L.
2017-01-01
A modified version of Monopoly has long been used as a simulation exercise to teach inequality. Versions of Modified Monopoly (MM) have touched on minority status relative to inequality but without an exploration of the complex interaction between minority status and class. This article introduces Gender Stratified Monopoly (GSM), an adaptation…
Assimilation or Ethnicization: An Exploration of Inland Tibet Class Education Policy and Practice
ERIC Educational Resources Information Center
Miaoyan, Yang; Dunzhu, Nima
2015-01-01
Assimilation and ethnicization are mainstream voices in current studies of ethnic relations. The former suspects that current social system arrangements are meant to assimilate minority groups into the cultural system of the mainstream ethnic group, while the latter believes that current systemic arrangements will cause minority groups to tend…
Academic Performance of Language-Minority Students and All-Day Kindergarten: A Longitudinal Study
ERIC Educational Resources Information Center
Chang, Mido
2012-01-01
This longitudinal study examined the effect of all-day kindergarten programs on the academic achievement of students from racial language minority and low socioeconomic class. The study employed a series of 3-level longitudinal multilevel analyses using a nationally representative database, the Early Childhood Longitudinal Study (ECLS). The study…
ERIC Educational Resources Information Center
Coles, Flournoy A., Jr.
1973-01-01
This article discusses some of the more important economic problems of minorities in the United States, identifying the economics of minorities with the economics of poverty, discrimination, exploitation, urban life, and alienation. (JM)
Examining the psychology of working theory: Decent work among sexual minorities.
Douglass, Richard P; Velez, Brandon L; Conlin, Sarah E; Duffy, Ryan D; England, Jessica W
2017-10-01
Research has found heterosexist discrimination negatively relates to vocational outcomes among lesbian, gay, and bisexual (LGB) people, but no known study has examined how heterosexist discrimination relates to the attainment of decent work. Building from the Psychology of Working Theory, which proposes that specific forms of marginalization coupled with economic constraints limit a person's ability to secure decent work, the present study examined theoretically hypothesized pathways to decent work among a sample of employed sexual minority adults. Heterosexist discrimination and social class were examined as direct predictors of decent work, and indirect links were examined via work volition and career adaptability. Among our sample of 218 sexual minority people, structural equation modeling results suggested heterosexist discrimination and social class directly-and indirectly through work volition-predicted decent work. Practical implications and directions for future research are discussed. (PsycINFO Database Record (c) 2017 APA, all rights reserved).
From old alkylating agents to new minor groove binders.
Puyo, Stéphane; Montaudon, Danièle; Pourquier, Philippe
2014-01-01
Alkylating agents represent the oldest class of anticancer agents with the approval of mechloretamine by the FDA in 1949. Even though their clinical use is far beyond the use of new targeted therapies, they still occupy a major place in the treatment of specific malignancies, sometimes representing the unique option for the treatment of refractory tumors. Here, we are reviewing the major classes of alkylating agents, with a particular focus on the latest generations of compounds that specifically target the minor groove of the DNA. These naturally occurring derivatives have a unique mechanism of action that explains the recent regain of interest in developing new classes of alkylating agents that could be used in combination with other anticancer drugs to enhance tumor response in the clinic. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.
ERIC Educational Resources Information Center
Montañez, Evelyn; Berger-Jenkins, Evelyn; Rodriguez, James; McCord, Mary; Meyer, Dodi
2015-01-01
Many school-age children in the United States with social, emotional, and behavioral problems do not receive mental health services. These problems negatively affect their social and behavioral functioning and academic achievement. This is particularly a problem for Latino youths, who represent the largest ethnic minority group in the United…
Randomized Controlled Trial of Problem-Solving Therapy for Minor Depression in Home Care
ERIC Educational Resources Information Center
Gellis, Zvi D.; McGinty, Jean; Tierney, Lynda; Jordan, Cindy; Burton, Jean; Misener, Elizabeth
2008-01-01
Objective: Data are presented from a pilot research program initiated to develop, refine, and test the outcomes of problem-solving therapy that targets the needs of older adults with minor depression in home care settings. Method: A pilot randomized clinical trial compares the impact of problem-solving therapy for home care to treatment as usual…
Evidence-Based Psychosocial Treatments for Ethnic Minority Youth
Huey, Stanley J.; Polo, Antonio J.
2008-01-01
This article reviews research on evidence-based treatments (EBTs) for ethnic minority youth using criteria from Chambless et al. (1998), Chambless et al. (1996), and Chambless and Hollon (1998). Although no well-established treatments were identified, probably efficacious or possibly efficacious treatments were found for ethnic minority youth with anxiety-related problems, attention-deficit/hyperactivity disorder, depression, conduct problems, substance use problems, trauma-related syndromes, and other clinical problems. In addition, all studies met either Nathan and Gorman's (2002) Type 1 or Type 2 methodological criteria. A brief meta-analysis showed overall treatment effects of medium magnitude (d = .44). Effects were larger when EBTs were compared to no treatment (d = .58) or psychological placebos (d = .51) versus treatment as usual (d = .22). Youth ethnicity (African American, Latino, mixed/other minority), problem type, clinical severity, diagnostic status, and culture-responsive treatment status did not moderate treatment outcome. Most studies had low statistical power and poor representation of less acculturated youth. Few tests of cultural adaptation effects have been conducted in the literature and culturally validated outcome measures are mostly lacking. Recommendations for clinical practice and future research directions are provided. PMID:18444061
Paulus, Daniel J; Manning, Kara; Hogan, Julianna B D; Zvolensky, Michael J
2017-05-01
The current study explored anxiety sensitivity as a factor accounting for the association between anxious arousal and problems related to use of cannabis and alcohol among a health disparity sample (low income minorities). Specifically, participants were 130 low-income racial/ethnic minorities who reported daily cannabis use (M age =37.7 SD=10.0; 28.5% female). There were significant indirect associations of anxious arousal via anxiety sensitivity in relation to: cannabis use problems, cannabis withdrawal symptoms, use of cannabis to cope, as well as hazardous drinking, alcohol use problems, and alcohol consumption. These data indicate anxiety sensitivity is a possible mechanism underlying the relation between anxious arousal and substance use problems among low-income racial/ethnic minorities. Future work could evaluate the efficacy of cannabis and alcohol use treatments incorporating anxiety sensitivity reduction techniques to facilitate amelioration of anxiety and substance use and offset mental health inequalities for this population. Copyright © 2016 Elsevier Ltd. All rights reserved.
Improving Schooling for Cultural Minorities: The Right Teaching Styles Can Make a Big Difference
ERIC Educational Resources Information Center
Morgan, Hani
2010-01-01
Many minority groups in the United States tend to struggle in school. One reason minority students are likely to encounter more problems in schools than mainstream students involves incomplete knowledge of minority students' learning and communication styles. Authors such as Banks (2006) and Pewewardy (2008) emphasize that minority students differ…
We Can Recruit Minorities Into The Geosciences
NASA Astrophysics Data System (ADS)
O'Connell, S.
2011-12-01
Despite the dismal numbers, efforts to recruit minorities into the geosciences are improving, thanks in part to NSF's "Opportunities for Enhancing Diversity in the Geosciences" (OEDG) initiative. At Wesleyan University, a small liberal arts college in Connecticut, we have significantly increased our recruitment of minority students. Twenty percent (four students) of the class of 2013 are African American. Most of the recruitment is done on an individual basis and working in conjunction with the "Dean for Diversity and Student Engagement" and courting minority students in introductory classes. The Dean for Diversity and Student Engagement is aware of our interest in increasing diversity and that we are able to hire minority students during the academic year and through the summer with OEDG funds. When she identifies minority students who might be interested in the geosciences, she refers them to faculty in the Earth and Environmental Sciences Department. Our faculty can provide employment, mentoring and a variety of geo-related experiences. Courting students in introductory courses can include inviting them to lunch or other activity, and attending sports, theater or dance events in which they are participating. Not all efforts result in new majors. Courses in ancillary sciences may be stumbling blocks and higher grades in less demanding courses have lured some students into other majors. Nevertheless, we now have a large enough cohort of minority students so that minority students from other majors visit their friends in our labs. A critical mass? Even a student, who chooses another major, may continue an interest in geoscience and through outreach efforts and discussions with younger family members, may provide a bridge that becomes a conduit for future students.
Handling imbalance data in churn prediction using combined SMOTE and RUS with bagging method
NASA Astrophysics Data System (ADS)
Pura Hartati, Eka; Adiwijaya; Arif Bijaksana, Moch
2018-03-01
Customer churn has become a significant problem and also a challenge for Telecommunication company such as PT. Telkom Indonesia. It is necessary to evaluate whether the big problems of churn customer and the company’s managements will make appropriate strategies to minimize the churn and retaining the customer. Churn Customer data which categorized churn Atas Permintaan Sendiri (APS) in this Company is an imbalance data, and this issue is one of the challenging tasks in machine learning. This study will investigate how is handling class imbalance in churn prediction using combined Synthetic Minority Over-Sampling (SMOTE) and Random Under-Sampling (RUS) with Bagging method for a better churn prediction performance’s result. The dataset that used is Broadband Internet data which is collected from Telkom Regional 6 Kalimantan. The research firstly using data preprocessing to balance the imbalanced dataset and also to select features by sampling technique SMOTE and RUS, and then building churn prediction model using Bagging methods and C4.5.
Adjoint-Based Methodology for Time-Dependent Optimization
NASA Technical Reports Server (NTRS)
Yamaleev, N. K.; Diskin, B.; Nielsen, E. J.
2008-01-01
This paper presents a discrete adjoint method for a broad class of time-dependent optimization problems. The time-dependent adjoint equations are derived in terms of the discrete residual of an arbitrary finite volume scheme which approximates unsteady conservation law equations. Although only the 2-D unsteady Euler equations are considered in the present analysis, this time-dependent adjoint method is applicable to the 3-D unsteady Reynolds-averaged Navier-Stokes equations with minor modifications. The discrete adjoint operators involving the derivatives of the discrete residual and the cost functional with respect to the flow variables are computed using a complex-variable approach, which provides discrete consistency and drastically reduces the implementation and debugging cycle. The implementation of the time-dependent adjoint method is validated by comparing the sensitivity derivative with that obtained by forward mode differentiation. Our numerical results show that O(10) optimization iterations of the steepest descent method are needed to reduce the objective functional by 3-6 orders of magnitude for test problems considered.
Sleep-related problems and minor psychiatric disorders among Brazilian shift workers.
Olinto, Maria Teresa Anselmo; Garcez, Anderson; Henn, Ruth Liane; Macagnan, Jamile Block Araldi; Paniz, Vera Maria Vieira; Pattussi, Marcos Pascoal
2017-11-01
The aim of this study was to explore the association between sleep-related problems with the occurrence of minor psychiatric disorders in shift workers of southern Brazil. A cross-sectional study with 1202 workers (785 females) aged 18-50 years was carried out. Minor psychiatric disorders were assessed using the Self-Reporting Questionnaire (SRQ-20), and four sleep problems were collected and analyzed: sleep deprivation (≤ 5h), difficulty falling asleep, waking up during sleep, and sleep medication use. Results show that the overall prevalence of minor psychiatric disorders was 26.8%, but it was more prevalent among females than males (30.2% vs. 20.4%). Nightshift work was significantly associated with the occurrence of sleep-related problems. After adjusting for confounding factors, the number of sleep-related problems showed a positive linear trend with psychiatric disorders in both sexes. Having two or more sleep-related problems was associated with increased probability of psychiatric disorders approximately three-fold among males and two-fold among females, when compared with those without sleep problems. In conclusion, this study demonstrated that sleep-related problems have a strong and independent association with psychiatric disorders among shift workers. Furthermore, the prevalence of both conditions was higher among females than males; however, the strength of these associations was higher in males. Copyright © 2017 Elsevier B.V. All rights reserved.
ERIC Educational Resources Information Center
Agbuga, Bulent
2011-01-01
Most studies focusing on the relationship between physical activity and obesity have been conducted in middle class Caucasian adults and children and few such studies are available concerning minority children in physical activity settings (Johnson, Kulinna, Tudor-Locke, Darst, & Pangrazi, 2007; Rowlands et al., 1999; Tudor-Locke, Lee, Morgan,…
The Impact of Schools on Learning: Inner-City Children in Suburban Schools
ERIC Educational Resources Information Center
Mahan, Thomas W.; Mahan, Aline M.
1971-01-01
Hypotheses tested were that the average achievement level of the classroom is a determining factor in achievement of urban minority group children and that social acceptance of the urban minority child by white middle class peers is related to academic achievement. Results using urban and suburban schools supported the hypotheses. (Author/CG)
ERIC Educational Resources Information Center
Green (Del) Associates, Foster City, CA.
This document presents in three parts the bases for curriculum decisions in the development of a post-secondary curriculum for minorities in small business ownership and management. Part 1 covers the general curriculum decisions, including the following items: selection of curriculum testing site; academic credits; class scheduling; student…
Historical Research: How to Fit Minority and Women's Studies into Mathematics Class
ERIC Educational Resources Information Center
Saraco, Margaret R.
2008-01-01
This article presents a lesson for studying minority and women's contributions to the field of mathematics in the middle school classroom. This lesson may be able to stem the tide of the shrinking number of students entering the field of mathematics by helping them become interested in its history. Nonetheless, this project encourages students to…
ERIC Educational Resources Information Center
Yan, Qing; Song, Suizhou
2010-01-01
In 1984 and 2000, respectively, the Party Central Committee and the state council decided to establish the Tibet Class and the Xinjiang Class in some interior provinces and municipalities ("neidi") to promote economic development and social progress in the motherland's frontier regions as well as to ensure state security and consolidate…
Dynamics of the minority game for patients
NASA Astrophysics Data System (ADS)
Kim, Kyungsik; Yoon, Seong-Min; Kul Yum, Myung
2004-12-01
We analyze the minority game for patients, and the results known from the minority game are applied to the patient problem consulted at the department of pediatric cardiology. We find numerically the standard deviation and the global efficiency, which is discussed similar to the El Farol bar problem. After the score equation and the scaled utility are introduced, the dynamical behavior of our model is discussed for particular strategies. Our results presented will be compared with recent numerical calculations.
Language Minority Student Transitions
ERIC Educational Resources Information Center
Suh, Emily
2016-01-01
Unfortunately, the journey to college can be lengthy for immigrants who must demonstrate English proficiency by completing a series of ESL classes while balancing work, family, and school (Blumenthal, 2002). At Southeast Community College (SCC), in Lincoln, Nebraska, the sequence ranges from classes in Beginning ESL to ESL for Academic Success,…
Classroom Diversity: Connecting Curriculum to Students' Lives.
ERIC Educational Resources Information Center
McIntyre, Ellen, Ed.; Rosebery, Ann, Ed.; Gonzalez, Norma, Ed.
These papers examine the sociocultural approach to curriculum design, which provides minority and working class students with the same privileges that middle class students have (instruction that puts their knowledge and experiences at the heart of learning). It presents the theoretical framework for linking students' lives with curriculum and…
76 FR 72838 - Amendment of Class E Airspace; Luray, VA
Federal Register 2010, 2011, 2012, 2013, 2014
2011-11-28
... Instrument Flight Rules (IFR) operations within the National Airspace System. This action also makes a minor adjustment to the geographic coordinates of the airport. DATES: Effective 0901 UTC, February 9, 2012. The... geographic coordinates of the airport needed to be adjusted. This action makes that adjustment. Class E...
Financing Class Size Reduction
ERIC Educational Resources Information Center
Achilles, C. M.
2005-01-01
Class size reduction has been shown to, among other things, improve academic achievement for all students and particularly for low-income and minority students. With the No Child Left Behind Act's heavy emphasis on scientifically based research, adequate yearly progress, and disaggregated results, one wonders why all children aren't enrolled in…
ERIC Educational Resources Information Center
Slavick, Carol A.
In 1968 the California Education Code section on physically handicapped minors was amended to include pregnant girls. This change was intended to give school districts the responsibility and the funds to develop special classes or schools for teenage pregmant girls. This special class makes it possible to provide more educational materials,…
Minorities and Career Education.
ERIC Educational Resources Information Center
Davenport, Lawrence; Petty, Reginald
This publication explores needed changes in the career preparation and education for minorities and examines the implications of career education emphases for minorities in the U.S. Contents include: (1) "An Overview of Minorities and Career Education" by L. Davenport and R. Petty, (2) "Public Schools, Public Policy, and Public Problems: Some…
Quantum annealing correction with minor embedding
NASA Astrophysics Data System (ADS)
Vinci, Walter; Albash, Tameem; Paz-Silva, Gerardo; Hen, Itay; Lidar, Daniel A.
2015-10-01
Quantum annealing provides a promising route for the development of quantum optimization devices, but the usefulness of such devices will be limited in part by the range of implementable problems as dictated by hardware constraints. To overcome constraints imposed by restricted connectivity between qubits, a larger set of interactions can be approximated using minor embedding techniques whereby several physical qubits are used to represent a single logical qubit. However, minor embedding introduces new types of errors due to its approximate nature. We introduce and study quantum annealing correction schemes designed to improve the performance of quantum annealers in conjunction with minor embedding, thus leading to a hybrid scheme defined over an encoded graph. We argue that this scheme can be efficiently decoded using an energy minimization technique provided the density of errors does not exceed the per-site percolation threshold of the encoded graph. We test the hybrid scheme using a D-Wave Two processor on problems for which the encoded graph is a two-level grid and the Ising model is known to be NP-hard. The problems we consider are frustrated Ising model problem instances with "planted" (a priori known) solutions. Applied in conjunction with optimized energy penalties and decoding techniques, we find that this approach enables the quantum annealer to solve minor embedded instances with significantly higher success probability than it would without error correction. Our work demonstrates that quantum annealing correction can and should be used to improve the robustness of quantum annealing not only for natively embeddable problems but also when minor embedding is used to extend the connectivity of physical devices.
Cortese, Antonio; Savastano, Mauro; Savastano, Germano; Claudio, Pier Paolo
2011-09-01
Transversal maxillary hypoplasia in adolescence is a frequently seen pathology, which can be treated with a combination of surgery and orthodontic treatment to widen the maxilla in skeletally matured patients.We evaluated the advantages of a new surgical technique: Le Fort I distraction osteogenesis using a bone-borne device. Because relapse is one of the main problems in surgical maxillary expansion, long-term stability of this new technique was evaluated. Data from 4 adult patients with maxillary restriction, class III malocclusion, or maxillary malposition were collected preoperatively, 4 months after distraction, and 5 years after distraction. Measurements were recorded on dental models to detect palatal expansion at dental level; cephalograms by lateral and posteroanterior plane were analyzed to detect maxillary movements. Maxillary measurements were substantially stable 5 years after distractions. Only minor dental movements occurred at the dental analysis after 5 years related to a lack of orthodontic contention without any compromise of the dental result (no crossbite relapse and class I stability). Le Fort I with down-fracture for expansion and repositioning by bone-borne distractor device can [corrected] be used to simultaneously widen, advance, and vertically reposition the maxilla without causing healing problems, particularly using a rigid distraction device. Long-term stability can be achieved; however, further studies with a larger number of patients will be necessary for better evaluation.
Vocational Education for China's Ethnic Minorities
ERIC Educational Resources Information Center
Qian, Minhui
2013-01-01
This article analyzes the current status and problems of vocational education for China's ethnic minorities. It concludes that these problems have both universal areas in common with China's overall education situation and individual characteristics; they also have both extrinsic and intrinsic qualities. The universal areas include the extrinsic…
ERIC Educational Resources Information Center
Boen, Jennifer
2010-01-01
This study provides two perspectives on the various character traits provided by character education programs by comparing the voices of minority and lower-lower middle class stakeholders with those of upper middle class stakeholders. The literature on the values and virtues based approaches to moral development and character education were…
Social Support in Two Cultures: Everyday Transactions in the U.S. and Empathic Assurance in Japan
Morling, Beth; Uchida, Yukiko; Frentrup, Sandra
2015-01-01
We studied received social support using the cross-cultural method of situation sampling. College students from the US and Japan described and rated recent examples of received social support, both everyday support as well as support in response to stress. Middle class, European-American (EuA) students’ situations fit a model in which support is frequent and offered freely in interactions, even for relatively minor issues. Even when it’s unrequested, EuA support makes recipients feel in control, and support-givers are perceived to have acted by free choice. In contrast, results suggest that middle-class Japanese (Jpn) contexts favor support that is empathic and responsive to the recipients’ degree of need. Japanese support was experienced positively when it was emotional support, when it was in more serious situations and when the support was rated as needed by the recipient. In Japan, although problem-based support is most common, it is not particularly positive, apparently because it is less likely to be perceived as needed. PMID:26107165
Working with Culture: Psychotherapeutic Interventions with Ethnic Minority Children and Adolescents.
ERIC Educational Resources Information Center
Vargas, Luis A., Ed.; Koss-Chioino, Joan D., Ed.
This book presents essays concerning culturally responsive psychotherapeutic interventions for specific problems commonly experienced by ethnic-minority youth. Each essay offers case examples, along with a clinical how-to approach for dealing with problems such as cross-racial foster care, gang involvement, child abuse, and substance abuse. Essays…
Taylor, Shane H; Arnold, Nicole D; Biggs, Lesley; Colloca, Christopher J; Mierau, Dale R; Symons, Bruce P; Triano, John J
2004-01-01
Over the past decade, mechanical adjusting devices (MADs) were a major source of debate within the Chiropractors’ Association of Saskatchewan (CAS). Since Saskatchewan was the only jurisdiction in North America to prohibit the use of MADs, the CAS established a committee in 2001 to review the literature on MADs. The committee evaluated the literature on the efficacy, safety, and uses of moving stylus instruments within chiropractic practice, and the educational requirements for chiropractic practice. Following the rating criteria for the evaluation of evidence, as outlined in the Clinical Guidelines for Chiropractic Practice in Canada (1994), the committee reviewed 55 articles – all of which pertained to the Activator. Of the 55 articles, 13 were eliminated from the final study. Of the 42 remaining articles, 6 were rated as class 1 evidence; 11 were rated as class 2 evidence and 25 were rated as class 3 evidence. In this article – the second in a series of two – we review the results of uses and usage, safety and educational requirements. Of the 30 articles designated under the category of usage, 3 were rated as Class 1 evidence; 9 studies were classified as Class 2 evidence and 18 were rated as Class 3 evidence. Overall the committee reached consensus that in clinical practice, there is broad application of these procedures. A minority report was written arguing that the reviewer was unable to reach a conclusion about the use of the Activator Instrument other than it is used as a clinical and research tool. Of the 16 studies that dealt either explicitly or implicitly with safety, 4 were Class 1 evidence; 3 were Class 2 evidence and 9 were Class 3 evidence. Overall the committee reached consensus that the evidence supports that the Activator instrument is safe and has no more relative risk than do manual HVLA procedures. A minority report was written arguing that there is no evidence either to support or refute the view that MAD is safe. Of the 5 studies that dealt with educational requirements, all were Class 3 evidence. Overall the committee reached consensus that there was no evidence in the literature with respect to educational requirements to form any conclusions. A minority report was written offering opinion that there is evidence with respect to educational requirements. PMID:17549227
Minority Stress and Psychological Distress among Asian American Sexual Minority Persons
ERIC Educational Resources Information Center
Szymanski, Dawn M.; Sung, Mi Ra
2010-01-01
The purpose of this study was to examine multiple minority stressors (i.e., heterosexist events, racist events, heterosexism in communities of color, racism in sexual minority communities, race-related dating and relationship problems, internalized heterosexism or homophobia, outness to family, and outness to world) as they relate to the…
Minorities and Mass Media Careers: Pipeline Problems of the l980s.
ERIC Educational Resources Information Center
Trayes, Edward J.
Because there are too few minority mass media personnel and minority media owners of newspapers, magazines, and radio stations today, large segments of our nations's minority populations are not kept adequately informed about their respective communities. A corollary of this situation is that the White-majority mass media audience is prevented…
ERIC Educational Resources Information Center
Wei, Shiyuan; Zhou, Guangda
1989-01-01
Describes the historical development of educational programs which could enhance the culture and knowledge of minorities in the mountainous regions of China. Identifies current major problems in minority education and lists statistical information for the school population. Provides guidelines for developing a minority education program. (KO)
Exact solution of large asymmetric traveling salesman problems.
Miller, D L; Pekny, J F
1991-02-15
The traveling salesman problem is one of a class of difficult problems in combinatorial optimization that is representative of a large number of important scientific and engineering problems. A survey is given of recent applications and methods for solving large problems. In addition, an algorithm for the exact solution of the asymmetric traveling salesman problem is presented along with computational results for several classes of problems. The results show that the algorithm performs remarkably well for some classes of problems, determining an optimal solution even for problems with large numbers of cities, yet for other classes, even small problems thwart determination of a provably optimal solution.
ERIC Educational Resources Information Center
Tan, Edna; Calabrese Barton, Angela
2010-01-01
Recent criticisms of the goal of "science for all" with regard to minority students have alluded to the onerous culture of school science characterized by white, middle-class values that eschew personal everyday science experiences and nontraditional funds of knowledge, in addition to alienating science instruction. Using critically-oriented,…
ERIC Educational Resources Information Center
Graves, Scott L., Jr., Ed.; Blake, Jamilia J., Ed.
2016-01-01
School-based mental health professionals receive extensive training in assessment and treatment techniques with children. However, most of this training is based on research with white, middle-class populations, whose experiences are hardly universal. In the next decade, ethnic minority students are projected to become the numerical majority in…
Larry P.: A Case of Segregation, Testing, or Program Efficacy?
ERIC Educational Resources Information Center
Prasse, David P.; Reschly, Daniel J.
1986-01-01
The article describes the background of Larry P. v. Riles, a class action law suit involving disproportionate placement of minorities in classes for the educable mentally retarded in California, and outlines the specific findings and remedies underlying issues, including stigmatization of being classified retarded and the nature/nurture debate.…
Voices of Teacher Candidates of Color on White Race Evasion: "I Worried about My Safety!"
ERIC Educational Resources Information Center
Amos, Yukari Takimoto
2016-01-01
This qualitative study investigated the negative impacts minority teacher candidates receive from white teacher candidates in a required multicultural education class. The findings reveal that four teacher candidates of color had difficulty positioning themselves among the overwhelming silencing power of whiteness in the class. The white students…
78 FR 45848 - Amendment of Class E Airspace; Salt Lake City, UT
Federal Register 2010, 2011, 2012, 2013, 2014
2013-07-30
... Salt Lake City, UT, to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) and Instrument Landing System (ILS) or Localizer (LOC) standard instrument approach procedures at Salt..., and makes a minor change to the legal description of Class E airspace extending upward from 1,200 feet...
Minority Sub-cultures and the Laws of Learning.
ERIC Educational Resources Information Center
Havighurst, Robert J.
Comparative motivational studies of middle class and lower class children show that different economic and ethnic groups vary in their reward-punishment systems. Teachers should have a systematic theory of the working of reward and punishment in learning. Their theory should include the concept of a hierarchy of reward levels, and they should…
Sciencey Girls: Discourses Supporting Working-Class Girls to Identify with Science
ERIC Educational Resources Information Center
Godec, Spela
2018-01-01
Women from working class and some ethnic minority backgrounds continue to be underrepresented in science, particularly in areas such as physical sciences and engineering. Many find it difficult to see science as something that is "for them", which then has implications for their learning and participation in science. In this paper, I…
The language of "sexual minorities" and the politics of identity: a position paper.
Petchesky, Rosalind P
2009-05-01
In any highly contested political domain, language can be a potent force for change or an obstacle to understanding and coalition building across difference. This is surely the case in the global debates over sexuality and gender, where even those terms themselves have aroused heated conflicts. In this spirit, we want to challenge the uncritical use of the term "sexual minorities", based on a number of historical and conceptual problems with which that term - like the larger thicket of identities and identity politics it signifies - is encumbered. These include: ignoring history, legitimating dubious normativity, fixing biological categories, and recreating exclusions. With this struggle, we seem caught in a modernist dilemma between two desires: to name and honour difference by signifying identities and to avoid exclusivity and hierarchy by reclaiming universals. The insistence of diverse groups on naming themselves and achieving recognition of their distinctness and variety will go on as long as aspirations for democracy exist, because that is the nature and necessity of emancipatory politics. At the same time, our language needs to reflect the fluidity and complexity of sexuality and gender expressions in everyday life and their intricate interweaving with other conditions such as class, race, ethnicity, time and place.
Flink, Ilse J E; Jansen, Pauline W; Beirens, Tinneke M J; Tiemeier, Henning; van IJzendoorn, Marinus H; Jaddoe, Vincent W V; Hofman, Albert; Raat, Hein
2012-12-19
Studies have shown that, compared to native counterparts, preschoolers from ethnic minorities are at an increased risk of problem behaviour. Socio-economic factors only partly explain this increased risk. This study aimed to further unravel the differences in problem behaviour among ethnic minority and native preschoolers by examining the mediating role of family functioning and parenting factors. We included 4,282 preschoolers participating in the Generation R Study, an ethnically-diverse cohort study with inclusion in early pregnancy. At child age 3 years, parents completed the Child Behavior Checklist (CBCL/1,5-5); information on demographics, socio-economic status and measures of family functioning (maternal psychopathology; general family functioning) and parenting (parenting stress; harsh parenting) were retrieved from questionnaires. CBCL Total Problems scores in each ethnic subgroup were compared with scores in the Dutch reference population. Mediation was evaluated using multivariate regression models. After adjustment for confounders, preschoolers from ethnic minorities were more likely to present problem behaviour than the Dutch subgroup (e.g. CBCL Total Problems Turkish subgroup (OR 7.0 (95% CI 4.9; 10.1)). When considering generational status, children of first generation immigrants were worse off than the second generation (P<0.01). Adjustment for socio-economic factors mediated the association between the ethnic minority status and child problem behaviour (e.g. attenuation in OR by 54.4% (P<0.05) from OR 5.1 (95% CI 2.8; 9.4) to OR 2.9 (95% CI 1.5; 5.6) in Cape Verdean subgroup). However, associations remained significant in most ethnic subgroups. A final adjustment for family functioning and parenting factors further attenuated the association (e.g. attenuation in OR by 55.5% (P<0.05) from OR 2.2 (95% CI 1.3; 4.4) to OR 1.5 (95% CI 1.0; 2.4) in European other subgroup). This study showed that preschoolers from ethnic minorities and particularly children of first generation immigrants are at an increased risk of problem behaviour compared to children born to a Dutch mother. Although socio-economic factors were found to partly explain the association between the ethnic minority status and child problem behaviour, a similar part was explained by family functioning and parenting factors. Considering these findings, it is important for health care workers to also be attentive to symptoms of parental psychopathology (e.g. depression), poor family functioning, high levels of parenting stress or harsh parenting in first and second generation immigrants with young children.
Prevalence of Malocclusion among 6 to 10 Year old Nalgonda School Children
Reddy, E Rajendra; Manjula, M; Sreelakshmi, N; Rani, S Thabitha; Aduri, Rajesh; Patil, B Dharamraj
2013-01-01
Background: To evaluate the prevalence of malocclusion among 6 to 10 year old children of Nalgonda District. Materials & Methods: A total of 3000 children were examined, out of which 2135 children (1009 boys and 1126 girls) who fulfilled the inclusion criteria were included. The selected sample was examined for Class I, Class II, Class III molar relationship, lower anterior crowding, cross bite (anterior and posterior), open bite, and pseudo class III [edge to edge bite] discrepancies after obtaining the written consent from the concerned school authorities. The collected data was tabulated and statistically analysed using chi-square test. Results: Among the selected sample, 648 (30.35%) children had minor tooth alignment discrepancies. Angle’s Class I molar relation with and without minor discrepancies was observed in 78.6%, Class II in 13.9%, Class III in 7.8% of the subjects surveyed. Lower anterior crowding in 11.8%, anterior cross bite in 4.5%, posterior cross bite in 3.75%, openbite in 3% and Pseudo class III [edge to edge] in 5.97% was noticed among the studied population. There was no statistical significant difference observed gender wise. Conclusion: In the current study, 52% of the studied population had malocclusion with a higher prevalence of Angle’s Class I molar relation with lower anterior crowding. How to cite this article: Reddy ER, Manjula M, Sreelakshmi N, Rani ST, Aduri R, Patil BD. Prevalence of Malocclusion among 6 to 10 Year old Nalgonda School Children. J Int Oral Health 2013; 5(6):49-54 . PMID:24453444
Ocular firework injuries at New Year's eve.
Sacu, Stefan; Ségur-Eltz, Nikolaus; Stenng, Karin; Zehetmayer, Martin
2002-01-01
To prospectively study mechanisms and injury characteristics of ocular firework burns. A prospective analysis of all patients with firework injuries attending the Department of Ophthalmology, University of Vienna, between 1994 and 2001. We looked for classes of fireworks and mechanisms of injuries. The number of diagnoses was established and their severity classified. During this period (8 years) we identified 116 eyes of 102 patients. 67/102 (66%) of all injuries were caused by class II and III fireworks. Patients ranged between 4 and 83 years. Ocular injuries occurred more frequently in males (69, 68%) and affected the right eye in 53 patients (52.5%). Ocular firework injuries to minors (under the age of 18 years) occurred in 48 (49%). The most common types of injury were skin and corneal erosions and abrasions (32/116, 28%). 11/116 eyes (10%) had severe injuries. 8 of 11 severe injuries (72%) occurred in minors (<18 years). 2 patients (1.7%) developed permanent blindness. In 32/116 patients (28%), the ocular trauma resulted in visual impairment, mainly due to corneal scars or retinal pathologies. In all patients, the severity index was 1.4 +/- 0.8. In minors the severity index was 1.6 +/- 1.0, in adults 1.2 +/- 0.5 (p = 0.013). Injuries in minors were significantly more severe than those in adults. Possible preventive measures include legislation, education of minors and eye protection. Copyright 2002 S. Karger AG, Basel
The Chemical Signature of SNIax in the Stars of Ursa Minor?
NASA Astrophysics Data System (ADS)
Cescutti, Gabriele; Kobayashi, Chiaki
2018-06-01
Recently, a new class of supernovae Ia was discovered: the supernovae Iax; the increasing sample of these objects share common features as lower maximum-light velocities and typically lower peak magnitudes.In our scenario, the progenitors of the SNe Iax are very massive white dwarfs, possibly hybrid C+O+Ne white dwarfs; due to the accretion from a binary companion, they reach the Chandrasekhar mass and undergo a central carbon deflagration, but the deflagration is quenched when it reaches the outer O+Ne layer. This class of SNe Ia are expected to be rarer than standard SNe Ia and do not affect the chemical evolution in the solar neighbourhood; however, they have a short delay time and they could influence the evolution of metal-poor systems. Therefore, we have included in a stochastic chemical evolution model for the dwarf spheroidal galaxy Ursa minor the contribution of SNe Iax.The model predicts a spread in [Mn/Fe] in the ISM medium at low metallicity and - at the same time - a decrease of the [alpha/Fe] elements, as in the classical time delay model. This is in surprising agreement with the observed abundances in stars of Ursa minor and provide a strong indication to the origin of this new classes of SNIa.
ERIC Educational Resources Information Center
Kornegay, Francis A.
Various aspects of the relationship between minorities and malnutrition are discussed in this brief paper. Malnutrition, one of the byproducts of low economic status, is creating a crisis-proportion health problem affecting minority citizens. Malnutrition seriously affects children, older people in poverty, and chronically unemployed or…
ERIC Educational Resources Information Center
Pierce, Margaret E.; Wechsler-Zimring, Adrianna; Noam, Gil; Wolf, Maryanne; Katzir, Tami
2013-01-01
This study examined the potentially compounding effect of language minority (LM) status on problem behaviors among urban second and third grade-level poor readers. Univariate analyses showed that a disproportionate percentage of both LM and English monolingual (L1) poor readers already displayed clinically significant levels of anxiety, social…
Minority Health in Michigan: Closing the Gap. Executive Summary.
ERIC Educational Resources Information Center
Michigan State Dept. of Public Health, Lansing.
This document summarizes a report on the health status of minority groups in Michigan. Mortality rates and health problems are analyzed for the following groups: (1) Blacks; (2) Hispanics: (3) Arab Americans; (4) Asian and Pacific Islanders; and (5) Native Americans. The following problem areas are discussed: (1) nutrition and hunger; (2)…
Fundamental differences between optimization code test problems in engineering applications
NASA Technical Reports Server (NTRS)
Eason, E. D.
1984-01-01
The purpose here is to suggest that there is at least one fundamental difference between the problems used for testing optimization codes and the problems that engineers often need to solve; in particular, the level of precision that can be practically achieved in the numerical evaluation of the objective function, derivatives, and constraints. This difference affects the performance of optimization codes, as illustrated by two examples. Two classes of optimization problem were defined. Class One functions and constraints can be evaluated to a high precision that depends primarily on the word length of the computer. Class Two functions and/or constraints can only be evaluated to a moderate or a low level of precision for economic or modeling reasons, regardless of the computer word length. Optimization codes have not been adequately tested on Class Two problems. There are very few Class Two test problems in the literature, while there are literally hundreds of Class One test problems. The relative performance of two codes may be markedly different for Class One and Class Two problems. Less sophisticated direct search type codes may be less likely to be confused or to waste many function evaluations on Class Two problems. The analysis accuracy and minimization performance are related in a complex way that probably varies from code to code. On a problem where the analysis precision was varied over a range, the simple Hooke and Jeeves code was more efficient at low precision while the Powell code was more efficient at high precision.
Pipelines and Dead Ends: Jobs Held by Minorities and Women in Broadcast News.
ERIC Educational Resources Information Center
Stone, Vernon A.
Because of the problem of lack of progress by minorities and women in the newsrooms of television and radio stations, a survey investigated the types of positions held by minority and non-minority men and women in broadcast news. Subjects, 730 news directors from non-satellite commercial TV stations and commercial radio stations, answered…
The value of less connected agents in Boolean networks
NASA Astrophysics Data System (ADS)
Epstein, Daniel; Bazzan, Ana L. C.
2013-11-01
In multiagent systems, agents often face binary decisions where one seeks to take either the minority or the majority side. Examples are minority and congestion games in general, i.e., situations that require coordination among the agents in order to depict efficient decisions. In minority games such as the El Farol Bar Problem, previous works have shown that agents may reach appropriate levels of coordination, mostly by looking at the history of past decisions. Not many works consider any kind of structure of the social network, i.e., how agents are connected. Moreover, when structure is indeed considered, it assumes some kind of random network with a given, fixed connectivity degree. The present paper departs from the conventional approach in some ways. First, it considers more realistic network topologies, based on preferential attachments. This is especially useful in social networks. Second, the formalism of random Boolean networks is used to help agents to make decisions given their attachments (for example acquaintances). This is coupled with a reinforcement learning mechanism that allows agents to select strategies that are locally and globally efficient. Third, we use agent-based modeling and simulation, a microscopic approach, which allows us to draw conclusions about individuals and/or classes of individuals. Finally, for the sake of illustration we use two different scenarios, namely the El Farol Bar Problem and a binary route choice scenario. With this approach we target systems that adapt dynamically to changes in the environment, including other adaptive decision-makers. Our results using preferential attachments and random Boolean networks are threefold. First we show that an efficient equilibrium can be achieved, provided agents do experimentation. Second, microscopic analysis show that influential agents tend to consider few inputs in their Boolean functions. Third, we have also conducted measurements related to network clustering and centrality that help to see how agents are organized.
MO-E-18C-03: Incorporating Active Learning Into A Traditional Graduate Medical Physics Course
DOE Office of Scientific and Technical Information (OSTI.GOV)
Burmeister, J
Purpose: To improve the ability of graduate students to learn medical physics concepts through the incorporation of active learning techniques. Methods: A traditional lecture-based radiological physics course was modified such that: (1) traditional (two-hour) lectures were provided online for students to watch prior to class, (2) a student was chosen randomly at the start of each class to give a two minute synopsis of the material and its relevance (two-minute drill), (3) lectures were significantly abbreviated and remaining classroom time used for group problem solving, and (4) videos of the abbreviated lectures were made available online for review. In themore » transition year, students were surveyed about the perceived effects of these changes on learning. Student performance was evaluated for 3 years prior to and 4 years after modification. Results: The survey tool used a five point scale from 1=Not True to 5=Very True. While nearly all students reviewed written materials prior to class (4.3±0.9), a minority watched the lectures (2.1±1.5). A larger number watched the abbreviated lectures for further clarification (3.6±1.6) and found it helpful in learning the content (4.2±1.0). Most felt that the two-minute drill helped them get more out of the lecture (3.9±0.8) and the problem solving contributed to their understanding of the content (4.1±0.8). However, no significant improvement in exam scores resulted from the modifications (mean scores well within 1 SD during study period). Conclusion: Students felt that active learning techniques improved their ability to learn the material in what is considered the most difficult course in the program. They valued the ability to review the abbreviated class lecture more than the opportunity to watch traditional lectures prior to class. While no significant changes in student performance were observed, aptitude variations across the student cohorts make it difficult to draw conclusions about the effectiveness of active learning.« less
Assessment Strategies for Minority Groups.
ERIC Educational Resources Information Center
Sharma, Sarla
1986-01-01
Far-reaching ramifications for minority children of psychological assessment warrants that it be accurate, fair, and valid. This article addresses: (1) problems inherent in standardized testing; (2) a moratorium on intelligence testing; (3) alternate approaches to testing; and (4) guidelines for assessing ethnic minority groups. (LHW)
Special Education Placement Factors for Latino Students
ERIC Educational Resources Information Center
Kraemer, Robert J.
2010-01-01
The disproportionate representation of minority students in special education programs has been a problem for over forty years. Factors contributing to minority overrepresentation include the lack of primary prevention, inappropriate language and educational assessment, over-referral of minority students for suspected learning difficulties,…
ERIC Educational Resources Information Center
Siddique, Juned; Chung, Joyce Y.; Brown, C. Hendricks; Miranda, Jeanne
2012-01-01
Objective: To examine whether there are latent trajectory classes in response to treatment and whether they moderate the effects of medication versus psychotherapy. Method: Data come from a 1-year randomized controlled trial of 267 low-income, young (M = 29 years), minority (44% Black, 50% Latina, 6% White) women with current major depression…
The Political Control of the Soviet Armed Forces.
1988-04-05
training aids. 9In sum, the MPA is 6 responsible for providing coordination and standardization for the political socialization in the Soviet military...compelling nationalist loyalties and to instill approved Socialist values in soldiers of the non- lavic minorities. Along with this political ... socialization the political officer will 21 conduct language classes for those minorities with low levels of Russian fluency. In summary, the large number of
ERIC Educational Resources Information Center
LeVasseur, Michal
This bibliography is intended to begin the process of awareness necessary to encourage young women and racial and ethnic minorities in geography classes across the nation. Women and minority racial and ethnic groups have long been seriously underrepresented in the discipline of geography both in the applied and professional world and in academic…
Minority households’ willingness to pay for public and private wildfire risk reduction in Florida
Armando González-Cabán; José J. Sánchez
2017-01-01
The purpose of this work is to estimate willingness to pay (WTP) for minority (African-American and Hispanic) homeowners in Florida for private and public wildfire risk-reduction programs and also to test for differences in response between the two groups. A random parameter logit and latent class model allowed us to determine if there is a difference in wildfire...
NASA Astrophysics Data System (ADS)
Ünsal, Zeynep; Jakobson, Britt; Molander, Bengt-Olov; Wickman, Per-Olof
2017-04-01
In this study, we examine how bilingual students in elementary school use their languages and what this means for their meaning-making in science. The class was multilingual with students bilingual in different minority languages and the teacher monolingual in Swedish. The analysis is based on a pragmatic approach and the theory of translanguaging. The science content was electricity, and the teaching involved class instruction and hands-on activities in small groups. The findings of the study are divided into two categories, students' conversations with the teacher and student's conversations with each other. Since the class was multilingual, the class instruction was carried out in Swedish. Generally, when the conversations were characterised by an initiation, response and evaluation pattern, the students made meaning of the activities without any language limitations. However, when the students, during whole class instruction, were engaged in conversations where they had to argue, discuss and explain their ideas, their language repertoire in Swedish limited their possibilities to express themselves. During hands-on activities, students with the same minority language worked together and used both of their languages as resources. In some situations, the activities proceeded without any visible language limitations. In other situations, students' language repertoire limited their possibilities to make meaning of the activities despite being able to use both their languages. What the results mean for designing and conducting science lessons in a multilingual class is discussed.
Class Pictures: Representations of Race, Gender and Ability in a Century of School Photography.
ERIC Educational Resources Information Center
Margolis, Eric
2000-01-01
Examined photographs taken of U.S. public school classes between the 1880s and the 1940s. Found significant gaps and historical amnesia, with segregated collections that reproduce images of hierarchy and dominance. The photographic archives searched convey biased views of the history of education and minority groups in the United States. (SLD)
ERIC Educational Resources Information Center
Oldfield, Kenneth
2007-01-01
American universities are seeking to increase "academic staff diversity" by hiring more females, racial/ethnic minorities, military veterans, and persons with disabilities. Various researchers have presented evidence showing that people of poverty and working-class origins are significantly underrepresented within the US academic staff.…
Consent Form Return Rates for Third-Grade Urban Elementary Students
ERIC Educational Resources Information Center
Ji, Peter; Flay, Brian R.; Phil, D.; DuBois, David L.; Brechling, Vanessa; Day, Joseph; Cantillon, Dan
2006-01-01
Objective: To maximize active parent consent form return rates for third-grade minority, urban students enrolled in predominantly low-income elementary schools in Chicago, Ill. Methods: Research staff used a class incentive and class visits to retrieve consent forms from students. Results: Of the 811 third-grade students, 98% returned a form and …
STAR Follow-Up Studies, 1996-1997: The Student/Teacher Achievement Ratio (STAR) Project.
ERIC Educational Resources Information Center
Pate-Bain, Helen; Boyd-Zaharias, Jayne; Cain, Van A.; Word, Elizabeth; Binkley, M. Edward
The Student/Teacher Achievement Ratio (STAR) Project first investigated the effect of small class size on student achievement with over 6,000 Tennessee primary students in 1985 through 1989. The study found a consistent and significant benefit of small classes for all students, with the greatest advantages for minority, inner-city students from…
Word-Problem-Solving Strategy for Minority Students at Risk for Math Difficulties
ERIC Educational Resources Information Center
Kong, Jennifer E.; Orosco, Michael J.
2016-01-01
Minority students at risk for math difficulties (MD) struggle with word problems for various reasons beyond procedural or calculation challenges. As a result, these students require support in reading and language development in addition to math. The purpose of this study was to assess the effectiveness of a math comprehension strategy based on a…
Problem-Solving Treatment and Coping Styles in Primary Care for Minor Depression
ERIC Educational Resources Information Center
Oxman, Thomas E.; Hegel, Mark T.; Hull, Jay G.; Dietrich, Allen J.
2008-01-01
Research was undertaken to compare problem-solving treatment for primary care (PST-PC) with usual care for minor depression and to examine whether treatment effectiveness was moderated by coping style. PST-PC is a 6-session, manual-based, psychosocial skills intervention. A randomized controlled trial was conducted in 2 academic, primary care…
ERIC Educational Resources Information Center
Iskandarova, Diloro; Ladygina, Olga; Shambezoda, Khusrav; Zolotukhin, Alexey; Abdukhamitov, Valijon
2017-01-01
Although it is disregarded and banned, a person can be discriminated in the society according to various attributes--due to the person's language, religion, nationality, social background. The problem touches upon not only individuals but minorities as well. Almost all states have one or several groups--minorities--that differ from the main…
ERIC Educational Resources Information Center
Bjorknes, Ragnhild; Kjobli, John; Manger, Terje; Jakobsen, Reidar
2012-01-01
In this study, we examined parenting practices as mediators of changes in child conduct problems in ethnic minority families participating in Parent Management Training-Oregon Model (PMTO). The participants included 96 Somali and Pakistani immigrant mothers and their children living in Norway. The families were randomized to PMTO or a waiting-list…
Broadcasting and Social Action. A Handbook for Station Executives.
ERIC Educational Resources Information Center
Cohn, Marcus, Ed.
A number of commercial and non-commercial stations have recognized their special responsibility to attempt to help society find a solution to the problems of minority groups. In this handbook, 51 case studies of special programing on the problems of minority groups are presented. The entry for each program gives the name of the station from which…
Leveraging cultural differences to promote educational equality.
Brady, Laura M; Germano, Adriana L; Fryberg, Stephanie A
2017-12-01
This paper theorizes that academic interventions will be maximally effective when they are culturally grounded. Culturally grounded interventions acknowledge cultural differences and validate multiple cultural models in a given context. This review highlights the importance of considering culture in academic interventions and draws upon the culture cycle framework to provide a blueprint for those interested in building more efficacious interventions. Specifically, the paper reviews literature in education and psychology to argue: first, when working-class and racial minority students' cultural models are not valued in mainstream academic domains, these students underperform; and second, many current academic interventions intended to improve working-class and racial minority students' academic outcomes could be further enhanced by cultural grounding. Copyright © 2017 Elsevier Ltd. All rights reserved.
NASA Astrophysics Data System (ADS)
Pun, A.; Smith, G. A.
2011-12-01
The learning activity sequence (LAS) strategy is a student-focused pedagogy that emphasizes active classroom learning to promote learning among all students, and in particular, those with diverse backgrounds. Online assessments both set the stage for active learning and help students synthesize material during their learning. UNM is one of only two Carnegie Research University Very High institutions also designated as Hispanic-serving and the only state flagship university that is also a majority-minority undergraduate institution. In 2010 Hispanics comprised 40% of 20,655 undergraduates (and 49% of freshmen), 37% of undergraduates were Pell Grant recipients (the largest proportion of any public flagship research university; J. Blacks Higher Ed., 2009) and 44% of incoming freshmen were first-generation students. To maximize student learning in this environment rich in traditionally underserved students, we designed a LAS for nonmajor physical geology (enrollments 100-160) that integrates in-class instruction with structured out-of-class learning. The LAS has 3 essential parts: Students read before class to acquire knowledge used during in-class collaborative, active-learning activities that build conceptual understanding. Lastly, students review notes and synthesize what they've learned before moving on to the next topic. The model combines online and in-class learning and assessment: Online reading assessments before class; active-learning experiences during class; online learning assessments after class. Class sessions include short lectures, peer instruction "clickers", and small-group problem solving (lecture tutorials). Undergraduate Peer-Learning Facilitators are available during class time to help students with problem solving. Effectiveness of the LAS approach is reflected in three types of measurements. (1) Using the LAS strategy, the overall rate of students earning a grade of C or higher is higher than compared to the average for all large-enrollment department sections taught during the same period. (2) Anonymous student surveys show that: 97% of students do at least some of the assigned reading before class while 58% indicate they would not do the reading if online reading assessments were not assigned; 72% indicate post-lecture online assessments prepare them for exams; greater than 80% of students feel that they learn more in the LAS approach than with traditional instruction; 90% favor active learning in the classroom to only lecture; learning opportunities motivate 82% to attend class to participate in peer instruction and in-class exercises, even if these assignments did not contribute at all to their grade. Notably, first-generation students show disproportionately greater preference for active in-class learning. (3) Learning gains were assessed with the geoscience concept inventory (GCI) of Libarkin and Anderson (2005, J Geo Ed 53(4):395-401). Paired pre- and post-test scores (n=404) in 5 classes show an improvement from 46% to 52% (11% normalized gain), within the target goal that McConnell et al. (2008, GSA Abst Prog 41(1):49) propose for introductory geology courses that produce improved conceptual geoscience learning.
Education of Minorities and Peace Education in Pluralistic Societies.
ERIC Educational Resources Information Center
Iram, Yaacov, Ed.; Wahrman, Hillel, Ed.
This collection of papers provides an international perspective on minorities and peace and on the relationship between these two issues in education. The 14 papers are: (1) "Education of Minorities: Problems, Promises, and Prospects--An International Perspective" (Yaacov Iram); (2) "Cultural Recognition or Social Redistribution:…
Whittaker, Alana; Shan, Guogen
2017-01-01
Objective. To analyze the modifiable predictors of institution-wide residency match rates. Methods. This was a retrospective analysis of colleges and schools of pharmacy data and school-wide PGY-1 pharmacy residency match rates for 2013 through 2015. Independent variables included NAPLEX passing rates, history of ACPE probation, NIH funding, academic health center affiliation, dual-degree availability, program length, admit-to-applicant ratio, class size, tuition, student-driven research, clinically focused academic tracks, residency affiliation, U.S. News & World Report rankings, and minority enrollment. Results. In a repeated measures model, predictors of match results were NAPLEX pass rate, class size, academic health center affiliation, admit-to-applicant ratio, U.S. News & World Report rankings, and minority enrollment. Conclusion. Indicators of student achievement, college/school reputation, affiliations, and class demographics were significant predictors of institution-wide residency match rates. Further research is needed to understand how changes in these factors may influence overall match rates. PMID:29367773
Whittaker, Alana; Smith, Katherine P; Shan, Guogen
2017-12-01
Objective. To analyze the modifiable predictors of institution-wide residency match rates. Methods. This was a retrospective analysis of colleges and schools of pharmacy data and school-wide PGY-1 pharmacy residency match rates for 2013 through 2015. Independent variables included NAPLEX passing rates, history of ACPE probation, NIH funding, academic health center affiliation, dual-degree availability, program length, admit-to-applicant ratio, class size, tuition, student-driven research, clinically focused academic tracks, residency affiliation, U.S. News & World Report rankings, and minority enrollment. Results. In a repeated measures model, predictors of match results were NAPLEX pass rate, class size, academic health center affiliation, admit-to-applicant ratio, U.S. News & World Report rankings, and minority enrollment. Conclusion. Indicators of student achievement, college/school reputation, affiliations, and class demographics were significant predictors of institution-wide residency match rates. Further research is needed to understand how changes in these factors may influence overall match rates.
Effectiveness of discovery learning model on mathematical problem solving
NASA Astrophysics Data System (ADS)
Herdiana, Yunita; Wahyudin, Sispiyati, Ririn
2017-08-01
This research is aimed to describe the effectiveness of discovery learning model on mathematical problem solving. This research investigate the students' problem solving competency before and after learned by using discovery learning model. The population used in this research was student in grade VII in one of junior high school in West Bandung Regency. From nine classes, class VII B were randomly selected as the sample of experiment class, and class VII C as control class, which consist of 35 students every class. The method in this research was quasi experiment. The instrument in this research is pre-test, worksheet and post-test about problem solving of mathematics. Based on the research, it can be conclude that the qualification of problem solving competency of students who gets discovery learning model on level 80%, including in medium category and it show that discovery learning model effective to improve mathematical problem solving.
Jung, In Young; Boettiger, David; Wong, Wing Wai; Lee, Man Po; Kiertiburanakul, Sasisopin; Chaiwarith, Romanee; Avihingsanon, Anchalee; Tanuma, Junko; Kumarasamy, Nagalingeswaran; Kamarulzaman, Adeeba; Zhang, Fujie; Kantipong, Pacharee; Ng, Oon Tek; Sim, Benedict Lim Heng; Law, Matthew; Ross, Jeremy; Choi, Jun Yong
2017-12-01
Although substitutions of antiretroviral regimen are generally safe, most data on substitutions are based on results from clinical trials. The objective of this study was to evaluate the treatment outcomes of substituting antiretroviral regimen in virologically suppressed HIV-infected patients in non-clinical trial settings in Asian countries. The study population consisted of HIV-infected patients enrolled in the TREAT Asia HIV Observational Database (TAHOD). Individuals were included in this analysis if they started combination antiretroviral treatment (cART) after 2002, were being treated at a centre that documented a median rate of viral load monitoring ≥0.8 tests/patient/year among TAHOD enrolees, and experienced a minor or major treatment substitution while on virally suppressive cART. The primary endpoint to evaluate outcomes was clinical or virological failure (VF), followed by an ART class change. Clinical failure was defined as death or an AIDS diagnosis. VF was defined as confirmed viral load measurements ≥400 copies/mL followed by an ART class change within six months. Minor regimen substitutions were defined as within-class changes and major regimen substitutions were defined as changes to a drug class. The patterns of substitutions and rate of clinical or VF after substitutions were analyzed. Of 3994 adults who started ART after 2002, 3119 (78.1%) had at least one period of virological suppression. Among these, 1170 (37.5%) underwent a minor regimen substitution, and 296 (9.5%) underwent a major regimen substitution during suppression. The rates of clinical or VF were 1.48/100 person years (95% CI 1.14 to 1.91) in the minor substitution group, 2.85/100 person years (95% CI 1.88 to 4.33) in the major substitution group and 2.53/100 person years (95% CI 2.20 to 2.92) among patients that did not undergo a treatment substitution. The rate of clinical or VF was low in both major and minor substitution groups, showing that regimen substitution is generally effective in non-clinical trial settings in Asian countries. © 2017 The Authors. Journal of the International AIDS Society published by John Wiley & sons Ltd on behalf of the International AIDS Society.
Executive Functions Contribute Uniquely to Reading Competence in Minority Youth.
Jacobson, Lisa A; Koriakin, Taylor; Lipkin, Paul; Boada, Richard; Frijters, Jan C; Lovett, Maureen W; Hill, Dina; Willcutt, Erik; Gottwald, Stephanie; Wolf, Maryanne; Bosson-Heenan, Joan; Gruen, Jeffrey R; Mahone, E Mark
Competent reading requires various skills beyond those for basic word reading (i.e., core language skills, rapid naming, phonological processing). Contributing "higher-level" or domain-general processes include information processing speed and executive functions (working memory, strategic problem solving, attentional switching). Research in this area has relied on largely Caucasian samples, with limited representation of children from racial or ethnic minority groups. This study examined contributions of executive skills to reading competence in 761 children of minority backgrounds. Hierarchical linear regressions examined unique contributions of executive functions (EF) to word reading, fluency, and comprehension. EF contributed uniquely to reading performance, over and above reading-related language skills; working memory contributed uniquely to all components of reading; while attentional switching, but not problem solving, contributed to isolated and contextual word reading and reading fluency. Problem solving uniquely predicted comprehension, suggesting that this skill may be especially important for reading comprehension in minority youth. Attentional switching may play a unique role in development of reading fluency in minority youth, perhaps as a result of the increased demand for switching between spoken versus written dialects. Findings have implications for educational and clinical practice with regard to reading instruction, remedial reading intervention, and assessment of individuals with reading difficulty.
ERIC Educational Resources Information Center
Santa Cruz County Superintendent of Schools, CA.
Presented is the fourth component of a special day class program for drug dependent minors, Drug Information for Educators, Parents, and Students. The first section, intended for educators, includes a drug abuse chart, information on the drug subculture, information on patterns of drug abuse and misconceptions about drugs, and suggested activities…
ERIC Educational Resources Information Center
Buzzetto-More, Nicole; Ukoha, Ojiabo; Rustagi, Narendra
2010-01-01
The under representation of women and minorities in undergraduate computer science and information systems programs is a pervasive and persistent problem in the United States. Needed is a better understanding of the background and psychosocial factors that attract, or repel, minority students from computing disciplines. An examination of these…
[Medical confidentiality for minors].
Peyrebrune, Cécile; Génot-Pok, Isabelle
2009-12-20
The new statutory provisions on the care of minors have given a legal framework for primary healthcare professionals. They clarify the rights of minors and their general application to improve the quality of the healthcare system. They are valuable and relevant tools for general practitioners in their day to day practice, and they help improve the medical care of minors, currently considered as a real public health problem.
Patterns of Alcohol Use and Consequences Among Empirically Derived Sexual Minority Subgroups
Talley, Amelia E.; Sher, Kenneth J.; Steinley, Douglas; Wood, Phillip K.; Littlefield, Andrew K.
2012-01-01
Objective: The current study develops an empirically determined classification of sexual orientation developmental patterns based on participants’ annual reports of self-identifications, sexual attractions, and sexual behaviors during the first 4 years of college. A secondary aim of the current work was to examine trajectories of alcohol involvement among identified subgroups. Method: Data were drawn from a subsample of a longitudinal study of incoming first-time college students at a large, public university (n = 2,068). Longitudinal latent class analysis was used to classify sexual minority participants into empirically derived subgroups based on three self-reported facets of sexual orientation. Multivariate repeated-measures analyses were conducted to examine how trajectories of alcohol involvement varied by sexual orientation class membership. Results: Four unique subclasses of sexual orientation developmental patterns were identified for males and females: one consistently exclusively heterosexual group and three sexual minority groups. Despite generally similar alcohol use patterns among subclasses, certain sexual minority subgroups reported elevated levels of alcohol-related negative consequences and maladaptive motivations for use throughout college compared with their exclusively heterosexual counterparts. Conclusions: Elevations in coping and conformity motivations for alcohol use were seen among those subgroups that also evidenced heightened negative alcohol-related consequences. Implications and limitations of the current work are discussed. PMID:22333337
Antiracism and the Level of Health Services: A Sociomedical Hypothesis
Schatzkin, Arthur; Cooper, Richard; Green, Linda
1984-01-01
Little attention has been paid to the validity of the “reverse discrimination” position that antiracist initiatives in the health sector would be associated with reduced services for whites. This paper advances the sociomedical hypothesis that antiracism leads to an increase in the level of health services and opportunities available to both minority and white populations. Four types of US health care utilization and training data are explored: annual rates of discharge from short-stay hospitals, percent of population seeing a physician during the year, rates of hypertension treatment and control, and admissions to the first-year class of US medical schools. These data are examined according to race for years prior and subsequent to the upsurge of antiracist activity that characterized the Civil Rights Movement era. From the early or mid-1960s to the mid- or late 1970s, hospital discharges, physician visits, and hypertension treatment and control for minorities and whites increased substantially. Generally these increases were proportionally greater for minorities. Although the percentage of increase in minority medical school admissions was necessarily accompanied by a decline in percentage of admissions of whites, the absolute number of whites admitted rose substantially as overall class size grew. These data do not support the “reverse discrimination” notion of one racial group benefiting at the expense of another. The data are consistent with the hypothesis that antiracist efforts in the health sector lead to an expansion of services and opportunities for minority and majority populations. PMID:6737494
2017-01-01
Background Anxiety control remains an important concern in dental practice. We evaluated the incidence, nature, and sequelae of complications during and after minor oral surgeries performed under intravenous midazolam and fentanyl sedation using the titration technique. Methods The medical records of patients who had undergone minor oral surgeries under moderate intravenous midazolam and fentanyl sedation at our institution between January 1, 2015 and December 31, 2015 were retrospectively evaluated. Age, sex, body mass index, medical history, American Society of Anesthesiologists (ASA) classification, indications for sedation, amount of sedative used, surgical duration, and recovery time were evaluated for all patients. Results In total, 107 patients aged 9–84 years were included. ASA class I and class II were observed for 56.1% and 43.9% patients, respectively. Complications associated with sedation occurred in 11 (10.2%) patients. There were no serious adverse events. Oxygen saturation reached 95% during the procedure in six patients; this was successfully managed by stimulating the patients to take a deep breath. Two patients exhibited deep sedation and one exhibited paradoxical excitement. After the procedure, one patient experienced nausea without vomiting and one exhibited a prolonged recovery time. The surgical procedures were completed in all patients. Obesity was found to be significantly associated with sedation-related complications. Conclusions Our results suggest that complications associated with intravenous midazolam and fentanyl sedation using the titration technique for minor oral surgeries are mostly minor and can be successfully managed with no prolonged sequelae. PMID:29090250
Involving South Asian patients in clinical trials.
Hussain-Gambles, M; Leese, B; Atkin, K; Brown, J; Mason, S; Tovey, P
2004-10-01
To investigate how South Asian patients conceptualise the notion of clinical trials and to identify key processes that impact on trial participation and the extent to which communication difficulties, perceptions of risk and attitudes to authority influence these decisions. Also to identify whether 'South Asian' patients are homogeneous in these issues, and which factors differ between different South Asian subgroups and finally how professionals regard the involvement of South Asian patients and their views on strategies to increase participation. A review of the literature on minority ethnic participation in clinical trials was followed by three qualitative interview studies. Interviews were taped and transcribed (and translated if required) and subjected to framework analysis. Face-to-face interviews were conducted with 25 health professionals; 60 South Asian lay people who had not taken part in a trial and 15 South Asian trial participants. Motivations for trial participation were identified as follows: to help society, to improve own health or that of family and friends, out of obligation to the doctor and to increase scientific knowledge. Deterrents were concerns about drug side-effects, busy lifestyles, language, previous bad experiences, mistrust and feelings of not belonging to British society. There was no evidence of antipathy amongst South Asians to the concept of clinical trials and, overall, the younger respondents were more knowledgeable than the older ones. Problems are more likely to be associated with service delivery. Lack of being approached was a common response. Lay-reported factors that might affect South Asian participation in clinical trials include age, language, social class, feeling of not belonging/mistrust, culture and religion. Awareness of clinical trials varied between each group. There are more similarities than differences in attitudes towards clinical trial participation between the South Asian and the general population. Important decisions, such as participation in clinical trials, are likely to be made by those family members who are fluent in English and younger. Social class appears to be more important than ethnicity, and older South Asian people and those from working class backgrounds appear to be more mistrustful. Approachable patients (of the same gender, social class and fluent in English) tend to be 'cherry picked' to clinical trials. This practice was justified because of a lack of time and resources and inadequate support. South Asian patients might be systematically excluded from trials owing to the increased cost and time associated with their inclusion, particularly in relation to the language barrier. Under-representation might also be due to passive exclusion associated with cultural stereotypes. Other characteristics such as gender, age, educational level and social class can also affect trial inclusion. Effective strategies for South Asian recruitment to clinical trials include: using multi-recruitment strategies; defining the demographic and social profiles of the population to be included; using focus groups to identify any potential barriers; consulting representative community members to provide assistance in the study; ensuring eligibility criteria are set as wide as possible; developing educational and recruitment approaches to attract ethnic minority health professionals; ensuring health professionals are adequately trained in culturally and ethnically orientated service provision; determining the most effective mass media to use in study promotion and recruitment; and targeting inner-city, single-handed practices likely to have high ethnic minority populations. Future research should consider: responses when invited to participate; the role of methodological and organisational barriers to recruitment; the complexities of recruitment from a health professional perspective; developing culturally sensitive research methods; the magnitude of the problem of under-recruitment; strategies to encourage inner-city, single-handed GP participation; and other factors affecting trial inclusion, such as age, gender, educational level and socio-cultural background.
Perceived risk associated with ecstasy use: a latent class analysis approach
Martins, SS; Carlson, RG; Alexandre, PK; Falck, RS
2011-01-01
This study aims to define categories of perceived health problems among ecstasy users based on observed clustering of their perceptions of ecstasy-related health problems. Data from a community sample of ecstasy users (n=402) aged 18 to 30, in Ohio, was used in this study. Data was analyzed via Latent Class Analysis (LCA) and Regression. This study identified five different subgroups of ecstasy users based on their perceptions of health problems they associated with their ecstasy use. Almost one third of the sample (28.9%) belonged to a class with “low level of perceived problems” (Class 4). About one fourth (25.6%) of the sample (Class 2), had high probabilities of “perceiving problems on sexual-related items”, but generally low or moderate probabilities of perceiving problems in other areas. Roughly one-fifth of the sample (21.1%, Class 1) had moderate probabilities of perceiving ecstasy health-related problems in all areas. A small proportion of respondents (11.9%, Class 5) had high probabilities of reporting “perceived memory and cognitive problems, and of perceiving “ecstasy related-problems in all areas” (12.4%, Class 3). A large proportion of ecstasy users perceive either low or moderate risk associated with their ecstasy use. It is important to further investigate whether lower levels of risk perception are associated with persistence of ecstasy use. PMID:21296504
… but You Are Not German." -- Afro-German Culture and Literature in the German Language Classroom
ERIC Educational Resources Information Center
Schenker, Theresa; Munro, Robert
2016-01-01
Units and classes dedicated to multiculturalism in Germany have predominantly focused on Turkish-German literature and culture. Afro-Germans have been a minority whose culture and literature have only marginally been included in German classes, even though Afro-Germans have been a part of Germany for centuries and have undergone efforts at…
ERIC Educational Resources Information Center
Weinberg, Richard B.
Two major classes of environmental stressors have been examined in life stress research: major life events and minor everyday hassles. To compare these two classes of stressors along with two stressful life events (threatened job loss and reorganization of the work setting), and to investigate the buffering effect of coping responses on…
A study on the sleep patterns and problems of university business students in Hong Kong.
Tsui, Y Y; Wing, Y K
2009-01-01
To investigate sleep patterns and problems of university business students. Undergraduate Chinese business students in Hong Kong. Self-reported questionnaires were completed during class lectures and through online system. Of the 620 participating students (mean age 19.9 years), sleep duration was significantly shorter during weekdays (6.9 hours) than weekends (8.6 hours). Two thirds of students reported sleep deprivation. The following factors were associated with being a "poor sleeper" (Pittsburgh Sleep Quality Index > 5): attending early morning lectures (odds ratio [OR] = 1.90), living on-campus (OR = 1.89), Sleep Sufficiency Index less than 0.8 (OR = 2.55), sleep debt (differences of total time-in-bed between weekday and weekend > or = 75 minutes) (OR = 1.58), and minor psychiatric disturbances (OR = 2.82). Poor sleep quality and sleep deprivation were prevalent in university business students in Hong Kong, especially for those attending early morning lectures and living on-campus. Systemic education on the importance of sleep and stress and time management is needed for university students.
Coherent state coding approaches the capacity of non-Gaussian bosonic channels
NASA Astrophysics Data System (ADS)
Huber, Stefan; König, Robert
2018-05-01
The additivity problem asks if the use of entanglement can boost the information-carrying capacity of a given channel beyond what is achievable by coding with simple product states only. This has recently been shown not to be the case for phase-insensitive one-mode Gaussian channels, but remains unresolved in general. Here we consider two general classes of bosonic noise channels, which include phase-insensitive Gaussian channels as special cases: these are attenuators with general, potentially non-Gaussian environment states and classical noise channels with general probabilistic noise. We show that additivity violations, if existent, are rather minor for all these channels: the maximal gain in classical capacity is bounded by a constant independent of the input energy. Our proof shows that coding by simple classical modulation of coherent states is close to optimal.
An Investigation of Eighth Grade Students' Problem Posing Skills (Turkey Sample)
ERIC Educational Resources Information Center
Arikan, Elif Esra; Ünal, Hasan
2015-01-01
To pose a problem refers to the creative activity for mathematics education. The purpose of the study was to explore the eighth grade students' problem posing ability. Three learning domains such as requiring four operations, fractions and geometry were chosen for this reason. There were two classes which were coded as class A and class B. Class A…
Simulating electron energy loss spectroscopy with the MNPBEM toolbox
NASA Astrophysics Data System (ADS)
Hohenester, Ulrich
2014-03-01
Within the MNPBEM toolbox, we show how to simulate electron energy loss spectroscopy (EELS) of plasmonic nanoparticles using a boundary element method approach. The methodology underlying our approach closely follows the concepts developed by García de Abajo and coworkers (Garcia de Abajo, 2010). We introduce two classes eelsret and eelsstat that allow in combination with our recently developed MNPBEM toolbox for a simple, robust, and efficient computation of EEL spectra and maps. The classes are accompanied by a number of demo programs for EELS simulation of metallic nanospheres, nanodisks, and nanotriangles, and for electron trajectories passing by or penetrating through the metallic nanoparticles. We also discuss how to compute electric fields induced by the electron beam and cathodoluminescence. Catalogue identifier: AEKJ_v2_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEKJ_v2_0.html Program obtainable from: CPC Program Library, Queen’s University, Belfast, N. Ireland Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html No. of lines in distributed program, including test data, etc.: 38886 No. of bytes in distributed program, including test data, etc.: 1222650 Distribution format: tar.gz Programming language: Matlab 7.11.0 (R2010b). Computer: Any which supports Matlab 7.11.0 (R2010b). Operating system: Any which supports Matlab 7.11.0 (R2010b). RAM:≥1 GB Classification: 18. Catalogue identifier of previous version: AEKJ_v1_0 Journal reference of previous version: Comput. Phys. Comm. 183 (2012) 370 External routines: MESH2D available at www.mathworks.com Does the new version supersede the previous version?: Yes Nature of problem: Simulation of electron energy loss spectroscopy (EELS) for plasmonic nanoparticles. Solution method: Boundary element method using electromagnetic potentials. Reasons for new version: The new version of the toolbox includes two additional classes for the simulation of electron energy loss spectroscopy (EELS) of plasmonic nanoparticles, and corrects a few minor bugs and inconsistencies. Summary of revisions: New classes “eelsstat” and “eelsret” for the simulation of electron energy loss spectroscopy (EELS) of plasmonic nanoparticles have been added. A few minor errors in the implementation of dipole excitation have been corrected. Running time: Depending on surface discretization between seconds and hours.
Singular optimal control and the identically non-regular problem in the calculus of variations
NASA Technical Reports Server (NTRS)
Menon, P. K. A.; Kelley, H. J.; Cliff, E. M.
1985-01-01
A small but interesting class of optimal control problems featuring a scalar control appearing linearly is equivalent to the class of identically nonregular problems in the Calculus of Variations. It is shown that a condition due to Mancill (1950) is equivalent to the generalized Legendre-Clebsch condition for this narrow class of problems.
Intercultural communication in general practice.
van Wieringen, Joke C M; Harmsen, Johannes A M; Bruijnzeels, Marc A
2002-03-01
Little is known about the causes of problems in communication between health care professionals and ethnic-minority patients. Not only language difficulties, but also cultural differences may result in these problems. This study explores the influence of communication and patient beliefs about health (care) and disease on understanding and compliance of native-born and ethnic-minority patients. In this descriptive study seven general practices located in a multi-ethnic neighbourhood in Rotterdam participated. Eighty-seven parents who visited their GP with a child for a new health problem took part: more than 50% of them belonged to ethnic-minorities. The consultation between GP and patient was recorded on video and a few days after the consultation patients were interviewed at home. GPs filled out a short questionnaire immediately after the consultation. Patient beliefs and previous experiences with health care were measured by different questionnaires in the home interview. Communication was analysed using the Roter Interaction Analysis System based on the videos. Mutual understanding between GP and patient and therapy compliance was assessed by comparing GP's questionnaires with the home interview with the parents. In 33% of the consultations with ethnic-minority patients (versus 13% with native-born patients) mutual understanding was poor. Different aspects of communication had no influence on mutual understanding. Problems in the relationship with the GP, as experienced by patients, showed a significant relation with mutual understanding. Consultations without mutual understanding more often ended in non-compliance with the prescribed therapy. Ethnic-minority parents more often report problems in their relationship with the GP and they have different beliefs about health and health care from native-born parents. Good relationships between GP and patients are necessary for mutual understanding. Mutual understanding has a strong correlation with compliance. Mutual understanding and consequently compliance is more often poor in consultations with ethnic-minority parents than with native-born parents.
Cultural considerations for treatment of childhood obesity.
Davis, S P; Northington, L; Kolar, K
2000-01-01
Childhood obesity has become one of the most common health problems facing children in America. Results from the Third National Health and Nutrition Examination Survey reveal that ethnic minority children in the United States are at particular risk for development of cardiovascular disease due to their disproportionate levels of obesity. In treating childhood obesity among ethnic minorities, practitioners need to be mindful of the cultural norms surrounding body size. Additional concerns that must be addressed include the effects of target marketing of unhealthy foods toward ethnic minorities and environmental deterrents to outside physical activities, to name a few. Strategies given to address the problem of childhood obesity among ethnic minorities include, increasing the child's physical activity, reducing television viewing and the adoption and maintenance of healthy lifestyle practices for the entire family.
The underdevelopment of health of working America: causes, consequences and possible solutions.
Navarro, V
1976-01-01
This article presents the health conditions of working America, and provides an analysis of the causes of that situation. It is postulated that the main health problems in the U.S. are due not to prevalent life styles-as the behavioralists indicate-but to the dramatic maldistribution of economic and political power in our society, with the absence of control by the majority of the U.S. population-the working and lower-middle classes-over the work process with which they are involved, the economic wealth that they produce, and the political institutions that they pay for. The production of goods and wealth as well as the political institutions of the United States are dominated and controlled by a minority of our population-the corporate and upper-middle classes. Empirical information is presented to support this postulate. In light of this explanation, it is asserted that a major public health task is to deliberately and actively contribute to the political mobilization of forces aimed at bringing about profound changes in the pattern of control of our working insitutions and of the distribution of wealth and political power, changes which seek to shift that control from the few to the many. PMID:937599
NASA Astrophysics Data System (ADS)
Nasution, M. L.; Yerizon, Y.; Gusmiyanti, R.
2018-04-01
One of the purpose mathematic learning is to develop problem solving abilities. Problem solving is obtained through experience in questioning non-routine. Improving students’ mathematical problem-solving abilities required an appropriate strategy in learning activities one of them is models problem based learning (PBL). Thus, the purpose of this research is to determine whether the problem solving abilities of mathematical students’ who learn to use PBL better than on the ability of students’ mathematical problem solving by applying conventional learning. This research included quasi experiment with static group design and population is students class XI MIA SMAN 1 Lubuk Alung. Class experiment in the class XI MIA 5 and class control in the class XI MIA 6. The instrument of final test students’ mathematical problem solving used essay form. The result of data final test in analyzed with t-test. The result is students’ mathematical problem solving abilities with PBL better then on the ability of students’ mathematical problem solving by applying conventional learning. It’s seen from the high percentage achieved by the group of students who learn to use PBL for each indicator of students’ mathematical problem solving.
ERIC Educational Resources Information Center
Graber, Julia A.; Nichols, Tracy; Lynne, Sarah D.; Brooks-Gunn, Jeanne; Botvin, Gilbert J.
2006-01-01
This article examines family, friend, and media influences on competent and problem behaviors in a sample of 1,174 urban minority youth followed over 6th, 7th, and 8th grades. Students completed annual surveys at their schools. Each of the contextual factors investigated was significantly associated with concurrent aggression and delinquency as…
ERIC Educational Resources Information Center
Justice, Benjamin
2016-01-01
Scholars typically frame the subgroup problem in education in terms of protecting religious minorities from majoritarian encroachment. This essay explores a different aspect of the subgroup problem: what happens when an antidemocratic religious minority becomes a local majority responsible for the promotion of the public good? This essay uses the…
The U.S. Military Academy and the Issue of Race in Higher Education: A Perspective. Revised.
ERIC Educational Resources Information Center
Morgovsky, Joel
The history of the racial problem in the United States is discussed as it affects higher education. The role several universities are playing to ease the problem is considered, including efforts at the U.S. Military Academy to admit larger numbers of minority students. The impact of higher education for minority students on the Army is also…
Priebe, Gisela; Svedin, Carl Göran
2012-10-01
The purpose of this study was to compare sexual-minority and heterosexual youths' exposure to sexual abuse off-line, problematic sexual meetings off-line with person/s met online and online harassment with regard to prevalence, psychological well-being and support seeking. A nationally representative sample of 3,432 Swedish high school seniors completed an anonymous school-based survey about sexuality, health, sexual abuse and online-related sexual victimisation or harassment. Sexual-minority adolescents reported a greater rate of sexual abuse, problematic sexual meetings off-line with person/s met online and online harassment, compared to heterosexual youth. When compared to non-victimised heterosexual adolescents, victimised heterosexual adolescents and non-victimised and victimised sexual-minority adolescents reported more psychiatric symptoms, lower self-esteem and a weaker sense of coherence. Same-sex sexual orientation was related to more psychiatric symptoms, lower self-esteem and a weaker sense of coherence even when controlled for victimisation and gender. Compared to victimised heterosexual adolescents, victimised sexual-minority adolescents were more likely to seek support because of sexual abuse (females) or Internet-related problems (males and females). Results for sexual-minority youth were basically the same whether sexual orientation was assessed as sexual identity or as sexual or emotional attraction. Health care providers are challenged to not only provide the same care to sexual-minority youth who seek counselling or psychiatric treatment for mental health problems or problems related to victimisation that all adolescents should receive but also to find ways to address topics like prevention of sexual abuse and risk-taking behaviour online or off-line.
Minority Education in Georgia: Is It Delivering What Is Expected?
ERIC Educational Resources Information Center
Tabatadze, Shalva
2017-01-01
This article explores the issue of minority education in the nation of Georgia, and this research aims to identify the reasons for minority educational problems. The results of school exit exams, literacy research studies, and the 2009 Program for International Student Assessment were used to highlight the differences in educational achievements…
ERIC Educational Resources Information Center
Ba, Zhanlong
2010-01-01
"Alternate location schooling" ("yidi banxue"), a special measure adopted in China to advance ethnic minority education and especially basic education, adheres to the principle of providing focused educational support in Tibet and Xinjiang and giving consideration to education in ethnic minority regions nationwide. Since the…
ERIC Educational Resources Information Center
Carter, David G., Sr.
Approaches to increasing minority group participation (women, Chicanos, Native Americans, and Blacks) in educational research and development at large universities are addressed. It is suggested that commitment by a college to increase minority participation in research should be indicated in its mission statement. One of the major problems has…
NASA Astrophysics Data System (ADS)
Hunter, Evelyn M. Irving
1998-12-01
The purpose of this study was to examine the relationship and predictive power of the variables gender, high school GPA, class rank, SAT scores, ACT scores, and socioeconomic status on the graduation rates of minority college students majoring in the sciences at a selected urban university. Data was examined on these variables as they related to minority students majoring in science. The population consisted of 101 minority college students who had majored in the sciences from 1986 to 1996 at an urban university in the southwestern region of Texas. A non-probability sampling procedure was used in this study. The non-probability sampling procedure in this investigation was incidental sampling technique. A profile sheet was developed to record the information regarding the variables. The composite scores from SAT and ACT testing were used in the study. The dichotomous variables gender and socioeconomic status were dummy coded for analysis. For the gender variable, zero (0) indicated male, and one (1) indicated female. Additionally, zero (0) indicated high SES, and one (1) indicated low SES. Two parametric procedures were used to analyze the data in this investigation. They were the multiple correlation and multiple regression procedures. Multiple correlation is a statistical technique that indicates the relationship between one variable and a combination of two other variables. The variables socioeconomic status and GPA were found to contribute significantly to the graduation rates of minority students majoring in all sciences when combined with chemistry (Hypotheses Two and Four). These variables accounted for 7% and 15% of the respective variance in the graduation rates of minority students in the sciences and in chemistry. Hypotheses One and Three, the predictor variables gender, high school GPA, SAT Total Scores, class rank, and socioeconomic status did not contribute significantly to the graduation rates of minority students in biology and pharmacy.
NASA Astrophysics Data System (ADS)
Mayes, Terrance
In the current technological era, the number of minorities in science, technology, engineering, and mathematics (STEM) is a crucial factor in predetermining the economic growth of the United States. Since the minority population is growing at much faster rates than the non-minority population, the lack of proportionate production of minority engineers poses a threat to the United States' ability to remain a global competitor in technological innovation. Sixty-three per cent (63%) of undergraduate students who enter engineering majors continue on to graduate in that major. The graduation rate, however, for African-American, Hispanic, and Native-American students in engineering is significantly lower at 39%. As this group represents only a small fraction of the annual student enrollment, engineering programs are graduating these minority groups at rates that are greatly disproportionate to United States demographics. Therefore, researchers are thoroughly investigating certain initiatives that promote academic success among underrepresented minority students in engineering. Colleges and universities have attempted to address the growing achievement gap between underrepresented minority and non-minority engineering students, predominately through various deficit-based interventions, focusing on the student's flaws and problems. As the pipeline for minorities in engineering continues to narrow, it begs the question of whether institutions are focusing on the right solutions to the problem. Critical Race Theory scholars argue that colleges and universities must address institutional climate issues around students, such as racism, microaggressions, and marginalization, before members of oppressed groups can truly succeed. This dissertation explored the unique experiences of underrepresented minority engineering students in a predominately White and Asian campus.
ERIC Educational Resources Information Center
Lavin, David E.; Hyllegard, David
A study and analysis was done of the contributions that open-admissions at City University of New York (CUNY) have made to the development and growth of a college educated class of men and women, especially minorities. In particular the analysis examined the marital, education, and economic contexts in which the children of participants in…
ERIC Educational Resources Information Center
Addington, Lynn A.
2016-01-01
Civic knowledge and participation are low among all students, but this pattern is even more pronounced for those who are poor, belong to a racial or ethnic minority group, or reside in a disadvantaged community. One remedy for this resulting "civic empowerment gap" is a call for teaching more effective civics classes in urban public…
Countertransference and its implementation in the treatment of a Hispanic adolescent boy.
Muñoz, J A
1986-05-01
The literature on the psychotherapeutic treatment of Puerto Rican and Hispanic Americans primarily focuses on unique cultural characteristics that may affect the initial transference reaction. Cultural values and beliefs related to authoritarianism (Muñoz 1981), dependency (Bluestone and Vela 1982), espiritismo (Comas-Diaz 1981), etc., have been identified as important in shaping initial expectations and attitudes toward psychotherapy. Therapists have been advised to become familiar with and sensitive to such characteristics and their manifestations and to be honest with themselves and patients about their prejudices (Sue et al. 1981). Otherwise countertransference is not discussed in depth. The following case presentation of an intellectually gifted Puerto Rican boy, Regalado, will illustrate some of the countertransference problems, such as overidentification, class differences, and unresolved conflicts about minority group membership, which have been identified as disruptive to the therapeutic process (Griffith 1977). It is generally agreed that one must be more active in the treatment of minorities or poor people. Maduro (1982) recommends that in working with Latinos, dream analysis be consistently related to sociocultural issues and that the healthy or creative aspects of the unconscious be emphasized. He also recommends a warm and personal attitude and active participation in communicating and interacting with the patient.
Executive Functions Contribute Uniquely to Reading Competence in Minority Youth
Jacobson, Lisa A.; Koriakin, Taylor; Lipkin, Paul; Boada, Richard; Frijters, Jan; Lovett, Maureen; Hill, Dina; Willcutt, Erik; Gottwald, Stephanie; Wolf, Maryanne; Bosson-Heenan, Joan; Gruen, Jeffrey R.; Mahone, E. Mark
2018-01-01
Competent reading requires various skills beyond those for basic word reading (i.e., core language skills, rapid naming, phonological processing). Contributing “higher-level” or domain-general processes include information processing speed and executive functions (working memory, strategic problem solving, attentional switching). Research in this area has relied on largely Caucasian samples, with limited representation of children from racial or ethnic minority groups. This study examined contributions of executive skills to reading competence in 761 children of minority backgrounds. Hierarchical linear regressions examined unique contributions of executive functions (EF) to word reading, fluency, and comprehension. EF contributed uniquely to reading performance, over and above reading-related language skills; working memory contributed uniquely to all components of reading; while attentional switching, but not problem solving, contributed to isolated and contextual word reading and reading fluency. Problem solving uniquely predicted comprehension, suggesting that this skill may be especially important for reading comprehension in minority youth. Attentional switching may play a unique role in development of reading fluency in minority youth, perhaps as a result of the increased demand for switching between spoken versus written dialects. Findings have implications for educational and clinical practice with regard to reading instruction, remedial reading intervention, and assessment of individuals with reading difficulty. PMID:26755569
Femi-Ajao, Omolade; Kendal, Sarah; Lovell, Karina
2018-03-07
Domestic violence and abuse has been recognised as an international public health problem. However, the pervasiveness of the problem is unknown due in part to underreporting, especially among women from ethnic minority populations. In relation to this group, this review seeks to explore: (1) the barriers to disclosure; (2) the facilitators of help-seeking; and (3) self-perceived impacts of domestic violence. We systematically identified published qualitative studies conducted among women from ethnic minority populations in the UK. Data analysis was completed using thematic analysis approach. 562 papers were identified and eight papers from four studies conducted among women from ethnic minority populations in the UK met the inclusion criteria and were reviewed. Barriers to disclosure include: Immigration status, community influences, problems with language and interpretation, and unsupportive attitudes of staff within mainstream services. Facilitators of help-seeking were: escalation of abuse and safety of children. Self-perceived impact of abuse includes: shame, denial, loss of identity and lack of choice. There is an on-going need for staff from domestic violence services to be aware of the complexities within which women from ethnic minority populations experience domestic violence and abuse.
NASA Astrophysics Data System (ADS)
Taylor, Bryan Keith
Scope and method of study. The context and nature of self-efficacy beliefs provides a vector upon which to explore science instructors' perceptions of their own competence, self beliefs, and beliefs concerning their students as a function of ethnicity (Pajares, 1996). Currently, available cross-sectional data that concomitantly compares efficacy for environmental and general science curricula among instructors with contrasting class ethnicity distributions (CED) (minority vs. non-minority) is diminutive. Here, a modified research instrument that incorporates the Environmental Education Efficacy Belief Instrument (Sia, 1992), the Science Teaching Efficacy Beliefs Instrument (Riggs & Enochs, 1990), and factors 2 & 3 from the Ohio State Teacher Efficacy Scale (Tschannen-Moran & Hoy, 2001) is employed to create a bi-disciplinary four dimensional assessment that measures personal teacher efficacy (PTE), outcome expectancy (OE), classroom management (CM), and student engagement (SE). Instructors' willingness to, and utilization of, practical instruction to reinforce science learning is also assessed. Findings and conclusions. Overall, efficacy levels for environmental and general science curriculum among instructors with high minority CED (n=22) were consistently lower than that of instructors with high non-minority CED (n = 18); consistently diminished efficacy levels were evidenced upon analysis of CED and all independent variables analyzed. While all four dimensions of efficacy were consistently low for instructors with high minority CED, markedly low mean CM and SE responses were evidenced. A link exists between teacher self-efficacy and the conditions present that impinge on the successful completion of work goals (Metz, 1978). Many studies have examined the lowered-level of minority involvement in environmental careers, issues, and concerns (Taylor, 1989). While all science instructors were willing to utilize outdoor classrooms, markedly lower outdoor classroom utilization was evidenced among instructors with high minority CED. The consistently low efficacy scores referenced herein for science instructors with high minority CED can be utilized to highlight science teacher efficacy as a critical point of concern as well as a crucial factor in tracing the genesis of the minority achievement gap in science. This research provides for the determination of efficacy as a contributive factor within the pathway for substantive rationale underlying the lack of minority representation and achievement within the many disciplines of science.
Planned Parenthood of Central New Jersey v. Farmer.
2000-01-01
Court Decision: 762 Atlantic Reporter, 2d Series 620; 2000 Aug 15 (date of decision). The Supreme Court of New Jersey held that the state's Parental Notification for Abortion Act (Act) was unconstitutional because it violated the right to equal protection. Planned Parenthood of Central New Jersey brought an action to prohibit the enforcement of the Act. The New Jersey Supreme Court held that women, both minors and adults, have a fundamental right to decide whether to terminate their pregnancies. Although the state may impose restrictions on a minor's rights in an effort to protect the minor from her own immaturity, the Court found that the Act imposed restrictions on minors seeking abortions that it did not impose on minors seeking medical and surgical care relating to their pregnancies. The Act required parental notification for a minor seeking an abortion but did not require parental notification for a cesarean section, a considerably more difficult and complicated procedure. The court found there to be no substantial need for the Act and its distinction between the two classes of minors since "the state has recognized a minor's maturity in matters relating to her sexuality, reproductive decisions, substance-abuse treatment, and placing her children for adoption."
A successful Minority Retention Project.
Gardner, Janelle D
2005-12-01
Racial and ethnic minorities are underrepresented in the nursing profession. The high attrition rate of minority students from nursing schools contributes to this problem. Academic leaders are calling for change in nursing education and asking educators to work diligently to retain minority students. This article describes a Minority Retention Project that included interventions designed to enhance the integration of minority students into a supportive learning environment, assist them in using the available resources, and help them feel connected and supported by their peers and faculty. At the end of the first year of the project, the nursing school experienced 100% retention of minority nursing students. Increasing the retention and graduation of minority nursing students supports the continued effort to provide culturally competent health care.
Buttram, Mance E.; Surratt, Hilary L.; Kurtz, Steven P.
2014-01-01
Research among sexual minorities has traditionally examined problems such as substance use, HIV risk, mental health problems, and victimization. Among sexual minority street-based female sex workers, these vulnerabilities can be magnified. Grounded in theories of resilience, this study examines risk and protective factors associated with a high level of personal mastery among a vulnerable population of women. Data are drawn from baseline interviews from street-based African American female sex workers enrolled in a randomized intervention trial in Miami, Florida. We compare sexual minority (N=197) and heterosexual (N=365) women on measures of risk and protective factors; among sexual minority women we present logistic regression analyses which reveal that severe mental distress and HIV transmission risk are associated with low levels of personal mastery, while protective factors of transportation access and social support are associated with high levels of personal mastery. These findings suggest that these protective factors may potentially facilitate the development of personal mastery and represent beneficial avenues for intervention efforts. PMID:25530691
Lanza, Stephanie T.; Rhoades, Brittany L.; Nix, Robert L.; Greenberg, Mark T.
2010-01-01
This study identified profiles of 13 risk factors across child, family, school, and neighborhood domains in a diverse sample of children in kindergarten from 4 US locations (n = 750; 45% minority). It then examined the relation of those early risk profiles to externalizing problems, school failure, and low academic achievement in Grade 5. A person-centered approach, latent class analysis, revealed four unique risk profiles, which varied considerably across urban African American, urban white, and rural white children. Profiles characterized by several risks that cut across multiple domains conferred the highest risk for negative outcomes. Compared to a variable-centered approach, such as a cumulative risk index, these findings provide a more nuanced understanding of the early precursors to negative outcomes. For example, results suggested that urban children in single-parent homes that have few other risk factors (i.e., show at least average parenting warmth and consistency and report relatively low stress and high social support) are at quite low risk for externalizing problems, but at relatively high risk for poor grades and low academic achievement. These findings provide important information for refining and targeting preventive interventions to groups of children who share particular constellations of risk factors. PMID:20423544
Lanza, Stephanie T; Rhoades, Brittany L; Nix, Robert L; Greenberg, Mark T
2010-05-01
This study identified profiles of 13 risk factors across child, family, school, and neighborhood domains in a diverse sample of children in kindergarten from four US locations (n = 750; 45% minority). It then examined the relation of those early risk profiles to externalizing problems, school failure, and low academic achievement in Grade 5. A person-centered approach, latent class analysis, revealed four unique risk profiles, which varied considerably across urban African American, urban White, and rural White children. Profiles characterized by several risks that cut across multiple domains conferred the highest risk for negative outcomes. Compared to a variable-centered approach, such as a cumulative risk index, these findings provide a more nuanced understanding of the early precursors to negative outcomes. For example, results suggested that urban children in single-parent homes that have few other risk factors (i.e., show at least average parenting warmth and consistency and report relatively low stress and high social support) are at quite low risk for externalizing problems, but at relatively high risk for poor grades and low academic achievement. These findings provide important information for refining and targeting preventive interventions to groups of children who share particular constellations of risk factors.
The Forced Marriage of Minors: A Neglected Form of Child Abuse.
Kopelman, Loretta M
2016-03-01
The forced marriage of minors is child abuse, consequently duties exist to stop them. Yet over 14 million forced marriages of minors occur annually in developing countries. The American Bar Association (ABA) concludes that the problem in the US is significant, widespread but largely ignored, and that few US laws protect minors from forced marriages. Although their best chance of rescue often involves visits to health care providers, US providers show little awareness of this growing problem. Strategies discussed to stop forced marriages include recommendations from the UN, the ABA, and the UK. The author anticipates and responds to criticisms that first, no duty to intervene exists without better laws and practice guidelines; and second, that such marriages are not child abuse in traditions where parental rights or familism allegedly justify them. © 2016 American Society of Law, Medicine & Ethics.
NASA Astrophysics Data System (ADS)
Aswan, D. M.; Lufri, L.; Sumarmin, R.
2018-04-01
This research intends to determine the effect of Problem Based Learning models on students' critical thinking skills and competences. This study was a quasi-experimental research. The population of the study was the students of class VIII SMPN 1 Subdistrict Gunuang Omeh. Random sample selection is done by randomizing the class. Sample class that was chosen VIII3 as an experimental class given that treatment study based on problems and class VIII1 as control class that treatment usually given study. Instrument that used to consist of critical thinking test, cognitive tests, observation sheet of affective and psychomotor. Independent t-test and Mann Whitney U test was used for the analysis. Results showed that there was significant difference (sig <0.05) between control and experimental group. The conclusion of this study was Problem Based Learning models affected the students’ critical thinking skills and competences.
Providing Services to the Minority Elderly: New Programs, Old Problems. Executive Summary.
ERIC Educational Resources Information Center
Commission on Civil Rights, Washington, DC.
This report is a response to a congressional mandate to study racial and ethnic discrimination in federally-assisted programs for older persons. The two-phase study includes a case study analysis of selected cities to assess whether minorities are employed in federal programs for older persons and the extent to which older minorities receive…
ERIC Educational Resources Information Center
Theodosiou-Zipiti, Galatia; Lamprianou, Iasonas
2016-01-01
Established literature suggests that language problems lead to lower attainment levels in those subjects that are more language dependent. Also, language has been suggested as a main driver of ethnic minority attainment. We use an original dataset of 2,020 secondary school students to show that ethnic minority students in Cyprus underperform…
ERIC Educational Resources Information Center
Wiseman, Marcie C.; Moradi, Bonnie
2010-01-01
On the basis of integrating objectification theory research with research on body image and eating problems among sexual minority men, the present study examined relations among sociocultural and psychological correlates of eating disorder symptoms with a sample of 231 sexual minority men. Results of a path analysis supported tenets of…
Gugasyan, R; Vidavsky, I; Nelson, C A; Gross, M L; Unanue, E R
1998-12-01
We report here the identification and quantitation of a minor epitope from hen egg white lysozyme (HEL) isolated from the class II MHC molecule I-Ak of APCs. We isolated and concentrated the peptides from the I-Ak extracts by a peptide-specific mAba, followed by their examination by electrospray mass spectrometry. This initial step improved the isolation, recovery, and quantitation and allowed us to identify 13 different minor peptides using the Ab specific for the HEL tryptic fragment 34-45. The HEL peptides varied on both the amino and carboxy termini. The shortest peptide was a 13-mer (residues 33-45), and the longest peptide was a 19-mer (residues 31-49). The two most abundant were 31-47 (1.3 pmol) and 31-46 (1 pmol), while the least abundant were 31-45 (40 fmol) and 32-45 (4 fmol). Only 0.3% of the total class II molecules were occupied by this family of HEL peptides. The amount of the 31-47 peptide, the predominant member of this series, was 22 times lower than that of 48-62, the major epitope of HEL. The 31-47 peptide bound about 20-fold weaker to I-Ak compared with the dominant 48-62 peptide. Thus, the lower abundance of the minor epitope correlated with its weaker binding strength.
ERIC Educational Resources Information Center
Kann, Laura; Olsen, Emily O'Malley; McManus, Tim; Harris, William A.; Shanklin, Shari L.; Flint, Katherine H.; Queen, Barbara; Lowry, Richard; Chyen, David; Whittle, Lisa; Thornton, Jemekia; Lim, Connie; Yamakawa, Yoshimi; Brener, Nancy; Zaza, Stephanie
2016-01-01
Problem: Sexual identity and sex of sexual contacts can both be used to identify sexual minority youth. Significant health disparities exist between sexual minority and nonsexual minority youth. However, not enough is known about health-related behaviors that contribute to negative health outcomes among sexual minority youth and how the prevalence…
NASA Astrophysics Data System (ADS)
Brown, Susan Wightman
National statistics clearly demonstrate an underrepresentation of minorities in the fields of science and engineering. Blacks, Hispanics, American Indians, and Asians do not typically choose science or engineering as their college major; therefore, there is a very small representation of these minorities in the science and engineering labor force. The decision not to major in science and engineering may begin as soon as the child can begin to recognize role models in the media. News stories, magazine articles, television programs, teachers, parents, administrators, and other agencies have painted the picture of a scientist or engineer as being dominantly a White male. Schools have continued society's portrayal by using curriculum, textbooks, role models, instructional strategies, and counseling that continues to encourage the White male to succeed in science and engineering, but discourages the minority students, male and female, from succeeding in these fields. In this qualitative study, 22 Hispanic students, 12 female and 10 male, who are majoring in science or engineering, were interviewed using Seidman's in-depth interviewing technique. These students were shadowed in their college science or engineering classes; their high school and college transcripts were analyzed; and, a focus group was brought together at the end of the interviewing process in order to allow interaction between the participants. The goal was to explore the educational journeys of the 22 Hispanic students. What made a difference in the journeys of these 22 students so that they could succeed in majors that have historically discouraged minority students? Seven themes emerged: family support, honors program, challenging and interactive curriculum, college preparation in high school courses, caring and kind teachers, small class size, and small communities. Gender comparison of the educational journeys documents these differences between the females and males: college preparation, mentoring, special school and summer programs, and gender role conflicts. In Chapter Six, a picture is painted by these 22 Hispanic students of a school that would promote success for all minority students in science and engineering related classes. Science and math educators, and really all educators, should take note and changes need to be made in our schools in order to provide a learning environment for all students.
de Jong, Elisabeth M.; Jellesma, Francine C.; Koomen, Helma M. Y.; de Jong, Peter F.
2016-01-01
Previous research showed that a values-affirmation intervention can help reduce the achievement gap between African American and European American students in the US. In the present study, it was examined if these results would generalize to ethnic minority students in a country outside the US, namely the Netherlands, where there is also an achievement gap between native and ethnic minority students. This type of intervention was tested in two separate studies, the first among first-year pre-vocational students (n = 361, 84% ethnic minority), and the second among sixth grade students (n = 290, 96% ethnic minority). Most minority participants had a Turkish-Dutch or Moroccan-Dutch immigrant background. In the second study, a third condition was added to the original paradigm, in which students elaborated on either their affirmation- or a control exercise with the help of a teaching assistant. We also examined whether values affirmation affected the level of problem behavior of negatively stereotyped ethnic minority youth. Contrary to what was expected, multilevel analyses revealed that the intervention had no effect on the school achievement or the problem behavior of the ethnic minority students. Possible explanations for these findings, mainly related to contextual and cultural differences between the Netherlands and the US, are discussed. PMID:27242604
How to Solve Polyhedron Problem?
NASA Astrophysics Data System (ADS)
Wijayanti, A.; Kusumah, Y. S.; Suhendra
2017-09-01
The purpose of this research is to know the possible strategies to solve the problem in polyhedron topic with Knilsey’s Learning Model as scaffolding for the student. This research was conducted by using mixed method with sequential explanatory design. Researchers used purposive sampling technique to get two classes for Knisley class and conventional class and an extreme case sampling technique to get interview data. The instruments used are tests, observation sheets and interview guidelines. The result of the research shows that: (1) students’ strategies to solve polyhedron problem were grouped into two steps: by partitioning the problem to find out the solution and make a mathematical model of the mathematical sentence given and then connect it with the concept that the students already know; (2) students ‘mathematical problem solving ability in Knisley class is higher than those in conventional class.
Rumala, Bernice B; Cason, Frederick D
2007-09-01
Recruitment of more underrepresented minority students (black, Hispanic and native American) to increase racial diversity in the physician workforce is on the agenda for medical schools around the nation. The benefits of having a racially diverse class are indisputable. Minority physicians are more likely to provide care to minority, underserved, disadvantaged and low-income populations. Therefore, medical schools would benefit from diversity through utilizing strategies for recruitment of underrepresented minority (URM) students. Numerous recruitment strategies have been employed to increase the number of underrepresented minority students. However, formal collaboration with minority medical student organizations is an underutilized tool in the recruitment process. Many medical schools have informally used minority medical students and members of various minority organizations on campus in the recruitment process, but a formal collaboration which entails a strategic approach on using minority medical student organizations has yet to be included in the literature. This paper discusses the innovative collaboration between the University of Toledo College of Medicine (UTCOM) chapter of the Student National Medical Association (SNMA) and the college of medicine's admissions office to strategize a recruitment plan to increase the number of underrepresented minority students at the UTCOM. This paper suggests that minority medical student organizations, particularly the SNMA, can be used as a recruiting tool; hence, admissions offices cannot negate the usefulness of having formal involvement of minority medical student organizations as a recruiting tool. This approach may also be applicable to residency programs and other graduate professional fields with a severe shortage of URM students.
ERIC Educational Resources Information Center
Atzaba-Poria, Naama; Pike, Alison
2005-01-01
The purpose of this paper was to examine explanatory mechanisms of differences in children's internalizing problems between ethnic minority (i.e., Indian) and ethnic majority (i.e., English) children living in Britain. Fifty-nine English children (31 girls) and 66 Indian children (30 girls), and their parents constituted the sample of this study.…
ERIC Educational Resources Information Center
Dembo, Richard; Briones-Robinson, Rhissa; Ungaro, Rocio Aracelis; Gulledge, Laura M.; Karas, Lora M.; Winters, Ken C.; Belenko, Steven; Greenbaum, Paul E.
2012-01-01
Intervention Project. Results identified two classes of youths: Class 1(n=9) - youths with low levels of delinquency, mental health and substance abuse issues; and Class 2(n=37) - youths with high levels of these problems. Comparison of these two classes on their urine analysis test results and parent/guardian reports of traumatic events found…
ERIC Educational Resources Information Center
Kuyper, Lisette; Fokkema, Tineke
2011-01-01
Minority stress is often cited as an explanation for greater mental health problems among lesbian, gay, and bisexual (LGB) individuals than heterosexual individuals. However, studies focusing on sex or sexual orientation differences in level of minority stress and its impact on mental health are scarce, even more so outside the United States.…
ERIC Educational Resources Information Center
Yi, Lin
2012-01-01
Ethnic minorities form a very substantial proportion of the population of China, with over 100 million people in 55 formally designated minority groups inhabiting over 60% of the country's land area. Poverty and economic inequality of minority groups are widely-recognised problems. However, as this book, based on extensive original research,…
ERIC Educational Resources Information Center
Erdem, Ali Riza; Yaprak, Meral
2013-01-01
The purpose of this research is to establish that the problems of education supervision of the class teachers working in the village and township centre in Denizli and their opinions about these problems affect their performance. 321 class teachers working in official primary schools in townships of Denizli and 272 class teachers working in…
Using Problem-Based Pre-Class Activities to Prepare Students for In-Class Learning
ERIC Educational Resources Information Center
Alayont, Feryal
2014-01-01
This article presents a problem-based approach that prepares students for future learning in the classroom. In this approach, students complete problem-based activities before coming to class to familiarize themselves with the topics to be covered. After the discussion on how the use of these activities relate to the learning and transfer…
Integrated software package STAMP for minor planets
NASA Technical Reports Server (NTRS)
Kochetova, O. M.; Shor, Viktor A.
1992-01-01
The integrated software package STAMP allowed for rapid and exact reproduction of the tables of the year-book 'Ephemerides of Minor Planets.' Additionally, STAMP solved the typical problems connected with the use of the year-book. STAMP is described. The year-book 'Ephemerides of Minor Planets' (EMP) is a publication used in many astronomical institutions around the world. It contains all the necessary information on the orbits of the numbered minor planets. Also, the astronomical coordinates are provided for each planet during its suitable observation period.
Leijten, Patty; Raaijmakers, Maartje A J; Orobio de Castro, Bram; Matthys, Walter
2016-01-01
Ethnic minority families in Europe are underrepresented in mental health care-a profound problem for clinicians and policymakers. One reason for their underrepresentation seems that, on average, ethnic minority families tend to perceive externalizing and internalizing child behavior as less problematic. There is concern that this difference in problem perception might limit intervention effectiveness. We tested the extent to which ethnic differences in problem perception exist when ethnic minority families engage in mental health service and whether lower levels of problem perception diminish parenting intervention effects to reduce disruptive child behavior. Our sample included 136 mothers of 3- to 8-year-olds (35% female) from the 3 largest ethnic groups in the Netherlands (43% Dutch; 35% Moroccan; 22% Turkish). Mothers reported on their child's externalizing and internalizing behavior and their perception of this behavior as problematic. They were then randomly assigned to the Incredible Years parenting intervention or a wait list control condition. We contrasted maternal reports of problem perception to teacher reports of the same children. Moroccan and Turkish mothers, compared with Dutch mothers, perceived similar levels of child behavior problems as less problematic, and as causing less impairment and burden. Teacher problem perception did not vary across children from different ethnic groups. Importantly, maternal problem perception did not affect parenting intervention effectiveness to reduce disruptive child behavior. Our findings suggest that ethnic differences in problem perception exist once families engage in treatment, but that lower levels of problem perception do not diminish treatment effects. (PsycINFO Database Record (c) 2016 APA, all rights reserved).
DOE Office of Scientific and Technical Information (OSTI.GOV)
Lashin, E. I.; Ain Shams University, Faculty of Science, Cairo 11566; Department of Physics and Astronomy, College of Science, King Saud University, Riyadh
We examine the possibility that a certain class of neutrino mass matrices, namely, those with two independent vanishing minors in the flavor basis, regardless of being invertible or not, is sufficient to describe current data. We compute generic formulas for the ratios of the neutrino masses and for the Majorana phases. We find that seven textures with two vanishing minors can accommodate the experimental data. We present an estimate of the mass matrix for these patterns. All of the possible textures can be dynamically generated through the seesaw mechanism augmented with a discrete Abelian symmetry.
ERIC Educational Resources Information Center
Schwartz, Wendy
Some minority and female students traditionally have not been given the help they need to enroll and succeed in mathematics and science classes. Now, however, various approaches are available to give these students the extra attention they need. Parents can help children develop an interest in science and mathematics by: (1) identifying role…
New fuzzy support vector machine for the class imbalance problem in medical datasets classification.
Gu, Xiaoqing; Ni, Tongguang; Wang, Hongyuan
2014-01-01
In medical datasets classification, support vector machine (SVM) is considered to be one of the most successful methods. However, most of the real-world medical datasets usually contain some outliers/noise and data often have class imbalance problems. In this paper, a fuzzy support machine (FSVM) for the class imbalance problem (called FSVM-CIP) is presented, which can be seen as a modified class of FSVM by extending manifold regularization and assigning two misclassification costs for two classes. The proposed FSVM-CIP can be used to handle the class imbalance problem in the presence of outliers/noise, and enhance the locality maximum margin. Five real-world medical datasets, breast, heart, hepatitis, BUPA liver, and pima diabetes, from the UCI medical database are employed to illustrate the method presented in this paper. Experimental results on these datasets show the outperformed or comparable effectiveness of FSVM-CIP.
ERIC Educational Resources Information Center
Aljaberi, Nahil M.; Gheith, Eman
2016-01-01
This study aims to investigate the ability of pre-service class teacher at University of Petrain solving mathematical problems using Polya's Techniques, their level of problem solving skills in daily-life issues. The study also investigates the correlation between their ability to solve mathematical problems and their level of problem solving…
NASA Astrophysics Data System (ADS)
Anthycamurty, R. C. C.; Mardiyana; Saputro, D. R. S.
2018-05-01
This research aims to analyze and determine effect of the model on problem solving. Subjects in this research are students of class X SMK in Purworejo. The learning model used in this research was TTW in class experimental 1 and NHT class experiment 2. This research used quasi experiment. Data analysis technique in this research used ANOVA two way. Data collection techniques in this research used tests to measure student problem solving and GEFT to measure students' cognitive style. The results of this research indicate that there are differences in problem solving between experimental classes used TTW and NHT. The impact of this research is that students are able to remind problem solving used learning model and to know cognitive style of the students.
Vaccines for minor use and minor species (MUMS)--industry's views.
Bönisch, B
2004-01-01
Over the past 30 years the importance of vaccines for minor use and minor species has changed for multinational animal health companies. The major reasons for this are being reviewed, with a particular focus on technical, financial and business aspects. Key regulatory obstacles to the development of new products for minor uses and minor species are identified, and examples of vaccines falling into the various categories are provided. A number of proposals are offered with the intention of resolving the medicines availability problem between all the stakeholders involved. Finally, based on the presented scientific and regulatory considerations, ideas are shared as to where the legal and economical framework would need to change to reach a viable solution.
ERIC Educational Resources Information Center
Williams, Walter E.
In this study, the problem of youth and minority employment in the United States is analyzed. The scope and character of the problem is defined. To demonstrate worsening trends, data from selected years since 1946 are presented. A preliminary explanation of supply and demand in the labor market is offered. A number of the causes of youth…
ERIC Educational Resources Information Center
Kerr, Roberta
2014-01-01
The purpose of this study was to obtain an accurate picture of minority student enrollment in honors and advanced placement (AP) classes at Wichita (Kansas) High School East and to develop a plan of action to close the achievement gap between White and non-White students. Prior to this study there was no clear, concise data to move this discussion…
Mental Health Diagnostic Considerations in Racial/Ethnic Minority Youth
Liang, June; Matheson, Brittany E.; Douglas, Jennifer M.
2015-01-01
Misdiagnoses of racial/ethnic minority youth’s mental health problems can potentially contribute to inappropriate mental health care. Therefore, we conducted a systematic review that focuses on current theory and empirical research in an attempt to answer the following two questions: 1) What evidence exists that supports or contradicts the idea that racial/ethnic minority youth’s mental health problems are misdiagnosed? 2) What are the sources of misdiagnoses? Articles were reviewed from 1967 to 2014 using PsychINFO, PubMed, and GoogleScholar. Search terms included “race”, “ethnicity”, “minority”, “culture”, “children”, “youth”, “adolescents”, “mental health”, “psychopathology”, “diagnosis”, “misdiagnosis”, “miscategorization”, “underdiagnosis”, and “overdiagnosis”. Seventy-two articles and book chapters met criteria and were included in this review. Overall, evidence was found that supports the possibility of misdiagnosis of ethnic minority youth’s emotional and behavioral problems. However, the evidence is limited such that it cannot be determined whether racial/ethnic differences are due to differences in psychopathology, mental health biases, and/or inaccurate diagnoses. Cultural and contextual factors that may influence misdiagnosis as well as recommendations for research and practice are discussed. PMID:27346929
Scrimin, Sara; Moscardino, Ughetta; Natour, Miras
2014-04-01
Children and youths living in areas of political conflict are at increased risk of mental health problems, but little is known about psychosocial adjustment among ethnic minorities living in war-afflicted settings. This cross-sectional study used an ecological approach to investigate the unique contributions of child, family/social, and minority related factors as well as traumatic exposure and perceived discrimination to the mental health of 167 Druze adolescents in Northern Israel. Outcome measures included participants' self-reported posttraumatic stress disorder symptoms, psychological distress, and emotional and behavioral problems. Adolescents reported high indirect exposure, moderate discrimination, strong ethnic identity and high religious involvement. Regression analyses showed that female gender, number of traumatic events, and perceived discrimination were associated with more severe mental health outcomes. In addition, low social support and high religious involvement predicted increased PTSD symptom severity, while stronger ethnic identity was associated with less emotional and behavioral problems. Findings are discussed in terms of the cultural characteristics of the Druze community and highlight the need to consider additional stressors, such as discrimination, when working with ethnic minority youth in conflict zones.
Latent profile analysis of sixth graders based on teacher ratings: Association with school dropout.
Orpinas, Pamela; Raczynski, Katherine; Peters, Jaclyn Wetherington; Colman, Laura; Bandalos, Deborah
2015-12-01
The goal of this study was to identify meaningful groups of sixth graders with common characteristics based on teacher ratings of assets and maladaptive behaviors, describe dropout rates for each group, and examine the validity of these groups using students' self-reports. The sample consisted of racially diverse students (n = 675) attending sixth grade in public schools in Northeast Georgia. The majority of the sample was randomly selected; a smaller group was identified by teachers as high risk for aggression. Based on teacher ratings of externalizing behaviors, internalizing problems, academic skills, leadership, and social assets, latent profile analysis yielded 7 classes that can be displayed along a continuum: Well-Adapted, Average, Average-Social Skills Deficit, Internalizing, Externalizing, Disruptive Behavior with School Problems, and Severe Problems. Dropout rate was lowest for the Well-adapted class (4%) and highest for the Severe Problems class (58%). However, students in the Average-Social Skills Deficit class did not follow the continuum, with a large proportion of students who abandoned high school (29%). The proportion of students identified by teachers as high in aggression consistently increased across the continuum from none in the Well-Adapted class to 84% in the Severe Problems class. Students' self-reports were generally consistent with the latent profile classes. Students in the Well-Adapted class reported low aggression, drug use, and delinquency, and high life satisfaction; self-reports went in the opposite direction for the Disruptive Behaviors with School Problems class. Results highlight the importance of early interventions to improve academic performance, reduce externalizing behaviors, and enhance social assets. (c) 2015 APA, all rights reserved).
The health of populations living in the indigenous minority settlements of northern Yakutia.
Burtseva, Tatiana E; Uvarova, Tatiana E; Tomsky, Mikhail I; Odland, Jon Ø
2014-01-01
This monograph contains the results of a study carried out by the Yakutsk Research Center for Complex Medical Problems, "Evaluating the health of the indigenous minorities of the Sakha Republic (Yakutia) and optimizing medical assistance using innovative technologies and telemedicine in indigenous settlements." The child population was studied in 19 indigenous minority settlements, and the adult population was studied in 12 settlements.
ERIC Educational Resources Information Center
Paul, Gina; Verhulst, Steve
2007-01-01
Problem: Minority students often score lower than majority students on the Medical College Admissions Test (MCAT) Verbal Reasoning section. Method: To determine what role schema plays in reading comprehension in 64 adult minority students, the Treatment group viewed a slide presentation regarding a topic that both groups would be tested on in a…
ERIC Educational Resources Information Center
Piscitelli, Christine D.
This practicum was designed to increase the positive experiences of middle school minority students entering a suburban community. The problem for racial and ethnic minorities is how to have full access to and participation in the educational life of the community without surrendering their language and cultural distinctiveness. The goals of this…
The ethnic roots of class universalism: rethinking the "Russian" revolutionary elite.
Riga, Liliana
2008-11-01
This article retrieves the ethnic roots that underlie a universalist class ideology. Focusing empirically on the emergence of Bolshevism, it provides biographical analysis of the Russian Revolution's elite, finding that two-thirds were ethnic minorities from across the Russian Empire. After exploring class and ethnicity as intersectional experiences of varying significance to the Bolsheviks' revolutionary politics, this article suggests that socialism's class universalism found affinity with those seeking secularism in response to religious tensions, a universalist politics where ethnic violence and sectarianism were exclusionary, and an ethnically neutral and tolerant "imperial" imaginary where Russification and geopolitics were particularly threatening or imperial cultural frameworks predominated. The claim is made that socialism's class universalism was as much a product of ethnic particularism as it was constituted by it.
Vallgårda, Signild
2008-01-01
Recent public health programmes from four countries: Denmark, England, Norway, and Sweden, are studied to analyse how social inequality in health is described, explained and suggested to be tackled, i.e., the problematization or the discursive process whereby the issue is framed and made accessible to political action. Social inequality in health is defined in these programmes both as a disadvantaged minority with major health problems, in contrast to the rest of the population, i.e., as a dichotomy; and as a gradient in which health problems are seen as increasing with lower social class or educational level. The causes of health inequality are identified as behaviour, social relations and underlying social structures. Policies aimed at reducing health inequality can be characterized as either in accordance with a residual welfare state model, targeting the disadvantaged, or a universal model, addressing the whole population. All countries have policies that are mixtures of these problematizations, but with some systematic differences between the countries. In this field England resembles the Scandinavian countries, as much as they resemble each other dispelling the idea of a Nordic or Scandinavian welfare state model.
DOT National Transportation Integrated Search
1979-08-01
The report examines the experiences and special problems of minority trucking firms. The firms are classified as unregulated local truckers, unregulated owner-operators, and regulated interstate common carriers. Random samples are developed for minor...
University Students' Problem Posing Abilities and Attitudes towards Mathematics.
ERIC Educational Resources Information Center
Grundmeier, Todd A.
2002-01-01
Explores the problem posing abilities and attitudes towards mathematics of students in a university pre-calculus class and a university mathematical proof class. Reports a significant difference in numeric posing versus non-numeric posing ability in both classes. (Author/MM)
Using latent class analysis to identify academic and behavioral risk status in elementary students.
King, Kathleen R; Lembke, Erica S; Reinke, Wendy M
2016-03-01
Identifying classes of children on the basis of academic and behavior risk may have important implications for the allocation of intervention resources within Response to Intervention (RTI) and Multi-Tiered System of Support (MTSS) models. Latent class analysis (LCA) was conducted with a sample of 517 third grade students. Fall screening scores in the areas of reading, mathematics, and behavior were used as indicators of success on an end of year statewide achievement test. Results identified 3 subclasses of children, including a class with minimal academic and behavioral concerns (Tier 1; 32% of the sample), a class at-risk for academic problems and somewhat at-risk for behavior problems (Tier 2; 37% of the sample), and a class with significant academic and behavior problems (Tier 3; 31%). Each class was predictive of end of year performance on the statewide achievement test, with the Tier 1 class performing significantly higher on the test than the Tier 2 class, which in turn scored significantly higher than the Tier 3 class. The results of this study indicated that distinct classes of children can be determined through brief screening measures and are predictive of later academic success. Further implications are discussed for prevention and intervention for students at risk for academic failure and behavior problems. (PsycINFO Database Record (c) 2016 APA, all rights reserved).
Cultural Perspectives on Teacher Education
NASA Astrophysics Data System (ADS)
Muhoro, Peter; Cochran, Geraldine; Gonzalez, Victor; Rockward, Willie; Sunda-Meya, Anderson; Incera, Vivian
2012-02-01
Populations that are underrepresented in physics generally are even more severely underrepresented among US physics teachers. Based on national data from the American Institute of Physics (AIP), 95% of physics teachers are White/non-Hispanic, about 1.5% are Hispanic, and approximately another 1.5% African-American. While 25% of our nation's African-American and Hispanic students now take physics in high school, they are very unlikely to have a role model, of similar race and ethnicity, teaching their physics classes. PhysTEC is making an effort to find and disseminate successful models for attracting more underrepresented minority students to high school physics teaching. This panel discussion, focusing on cultural perspectives on teacher education, will feature faculty from Minority Serving Institutions, which educate almost 60% of underrepresented minorities who get college degrees in the US, and individuals who have taught high school physics in areas with a dense minority population.
McGarvey, E L; Canterbury, R J; Waite, D
1996-01-01
In this retrospective study of incarcerated adolescents, inhalants were used by significantly more nonminority than minority youth. Among both minority and nonminority groups, family problems and delinquent behaviors were higher among those youth with a history of inhalant use than those who reported no use. Family problems included history of running away from home, breaking rules, fighting with parents, and having relatives who had attempted suicide. Delinquent behavior included earlier personal use of drugs, selling illegal drugs, buying drugs from dealers, committing crimes while under the influence, committing crimes to get money to buy drugs, and threatening to hurt people.
LETTER TO THE EDITOR: Dynamics of interacting neural networks
NASA Astrophysics Data System (ADS)
Kinzel, W.; Metzler, R.; Kanter, I.
2000-04-01
The dynamics of interacting perceptrons is solved analytically. For a directed flow of information the system runs into a state which has a higher symmetry than the topology of the model. A symmetry-breaking phase transition is found with increasing learning rate. In addition, it is shown that a system of interacting perceptrons which is trained on the history of its minority decisions develops a good strategy for the problem of adaptive competition known as the bar problem or minority game.
NASA Astrophysics Data System (ADS)
Roehrig, Gillian H.; Dubosarsky, Mia; Mason, Annie; Carlson, Stephan; Murphy, Barbara
2011-10-01
Despite many scholars' recommendations, science is often avoided during early childhood education. Among the reasons provided by early childhood teachers for the exclusion of science from their daily routines included science anxiety, low self-efficacy with respect to teaching science, lack of experience participating in science activities as students, or the notion that literacy and language are more important during the early years. In minority populations the problem is even greater due to identification of science with the `culture of. This article presents results from Ah Neen Dush, a sustained and transformative professional development program for Head Start teachers on an American Indian Reservation. The goal of the program is to support early childhood teachers in developing inquiry-based and culturally-relevant teaching practices. Through analysis of teachers' classroom practices, surveys and interviews, we explore changes in teachers' attitudes toward science and inquiry-based practices. Classroom observations were conducted using CLASS (Classroom assessment Scoring System), a tool used to evaluate the quality of classroom interactions. After 1 year of professional development teachers' attitudes were found to improve and after 2 years teachers classroom practices were more inquiry-based with statistically significant increases in CLASS observation scores.
2012-01-01
Background Among the working population, unemployed and temporary agency workers with psychological problems are a particularly vulnerable group, at risk for sickness absence and prolonged work disability. There is a need for the development of a new protocol for this group, because the existing return to work (RTW) interventions, including practice guidelines, do not address the situation when there is no workplace to return to. The purpose of this study was to (1) describe the adaptations needed in the practice guideline for employed workers to enable its use by insurance physicians (IPs) for counselling of sick-listed unemployed and temporary agency workers with minor psychological problems; and (2) evaluate the experiences of IPs when using the new guidance document for minor psychological problems (MPP guidance document). Methods The MPP guidance document for unemployed and temporary agency workers was developed through discussions with nine IPs and with the help of an expert. Semi-structured interviews with five IPs were then held to evaluate the IPs’ field experience using the MPP guidance document, in terms of (a) feasibility and (b) perceived usefulness of the MPP guidance document. Results The main adaptation introduced in the guideline is that interaction with the workplace, which is absent in this population, needed to be established in an alternative way, i.e., through the involvement of vocational rehabilitation agencies and labour experts. Overall, the guideline required minimal changes. In total, nineteen sick-listed workers were counselled using the MPP guidance document. The overall experience of the IPs was that the MPP guidance document was feasible and useful for the IP, while they had mixed responses on its usefulness for the sick-listed worker, in part due to the follow-up period of this study. Conclusions An existing practice guideline for employed workers was adapted for use as a guidance document for unemployed and temporary agency workers with minor psychological problems. IPs were positive about applying the MPP guidance document. The guidance document provides opportunities for RTW counselling for unemployed and temporary agency workers with minor psychological problems. PMID:23014258
The health of populations living in the indigenous minority settlements of northern Yakutia
Burtseva, Tatiana E.; Uvarova, Tatiana E.; Tomsky, Mikhail I.; Odland, Jon Ø.
2014-01-01
This monograph contains the results of a study carried out by the Yakutsk Research Center for Complex Medical Problems, “Evaluating the health of the indigenous minorities of the Sakha Republic (Yakutia) and optimizing medical assistance using innovative technologies and telemedicine in indigenous settlements.” The child population was studied in 19 indigenous minority settlements, and the adult population was studied in 12 settlements. PMID:25405106
A Study of the Education Rate of Return for Rural Residents in Northwest Minority Areas
ERIC Educational Resources Information Center
Baicai, Sun
2015-01-01
Studying the rate of return for rural residents in minority areas can give a good explanation for the problems of children enrolling in school and dropping out. On the whole, the education rate of return for rural residents in northwest minority areas is low, the Mincer function estimate is 2%, and the Heckman model estimate is 2.49%. The rate of…
Advancing Minorities and Women to the PhD in Physics and Astronomy
NASA Astrophysics Data System (ADS)
Stassun, Keivan
2017-01-01
We briefly review the current status of underrepresented minorities in physics and astronomy: The underrepresentation of Black-, Hispanic-, and Native-Americans is an order of magnitude problem. We then describe the Fisk-Vanderbilt Masters-to-PhD Bridge program as a successful model for addressing this problem. Since 2004 the program has admitted 110 students, 90% of them underrepresented minorities (50% female), with a retention rate of 90%. The program has become the top producer of African American master's degrees in physics, and is now one of the top producers of minority PhDs in astronomy, materials science, and physics. We summarize the main features of the program including its core strategies: (1) replacing the GRE in admissions with indicators that are better predictive of long-term success, (2) partnering with a minority-serving institution for student training through collaborative research, and (3) using the master's degree as a deliberate stepping stone to the PhD. We show how misuse of the GRE in graduate admissions may by itself in large part explain the ongoing underrepresentation of minorities in PhD programs, and we describe our alternate methods to identify talented individuals most likely to succeed. We describe our mentoring model and toolkit which may be utilized to enhance the success of all PhD students.
HEALTH RISKS FROM CONTAMINATED WATER: DO CLASS AND RACE MATTER?
The impact of contaminants in water on minorities and economically disadvantaged persons was reviewed. Environmental legislation governing water was summarized as background information against which relevant studies were evaluated. The majority of the available information was a...
75 FR 53593 - Hazardous Materials: Minor Editorial Corrections and Clarifications
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-01
... transportation, Packaging and containers, Radioactive materials, Reporting and recordkeeping requirements... section specifies general requirements for packaging hazardous materials for transportation by aircraft... contamination on motor vehicles used to transport Class 7 radioactive materials under exclusive use conditions...
NASA Astrophysics Data System (ADS)
Carter, Jeffrey R.; Simon, Wayne E.
1990-08-01
Neural networks are trained using Recursive Error Minimization (REM) equations to perform statistical classification. Using REM equations with continuous input variables reduces the required number of training experiences by factors of one to two orders of magnitude over standard back propagation. Replacing the continuous input variables with discrete binary representations reduces the number of connections by a factor proportional to the number of variables reducing the required number of experiences by another order of magnitude. Undesirable effects of using recurrent experience to train neural networks for statistical classification problems are demonstrated and nonrecurrent experience used to avoid these undesirable effects. 1. THE 1-41 PROBLEM The statistical classification problem which we address is is that of assigning points in ddimensional space to one of two classes. The first class has a covariance matrix of I (the identity matrix) the covariance matrix of the second class is 41. For this reason the problem is known as the 1-41 problem. Both classes have equal probability of occurrence and samples from both classes may appear anywhere throughout the ddimensional space. Most samples near the origin of the coordinate system will be from the first class while most samples away from the origin will be from the second class. Since the two classes completely overlap it is impossible to have a classifier with zero error. The minimum possible error is known as the Bayes error and
Discrimination in Recruitment, Admission, and Retention of Minority Graduate Students.
ERIC Educational Resources Information Center
Pruitt, Anne S.; Isaac, Paul D.
1985-01-01
Employs concepts from the theory of discrimination in internal labor markets to analyze the declining enrollment of minority students in graduate schools. Describes problems and suggests solutions in recruitment procedures, objective admission standards, subjective screening criteria, and student retention. (KH)
Weapons and Minority Youth Violence.
ERIC Educational Resources Information Center
Northrop, Daphne; Hamrick, Kim
Weapons violence is a major public health problem that especially impacts minority youth. Interventions designed to reduce weapon use by youth are categorized as educational/behavioral change, legal, and technological/environmental. Few educational programs currently exist, but those that do largely concern firearm safety courses, public…
NASA Astrophysics Data System (ADS)
Sawtelle, Vashti; Brewe, Eric; Kramer, Laird
2009-12-01
The Colorado Learning Attitudes about Science Survey (CLASS) has been widely acknowledged as a useful measure of student cognitive attitudes about science and learning. The initial University of Colorado validation study included only 20% non-Caucasian student populations. In this Brief Report we extend their validation to include a predominately under-represented minority population. We validated the CLASS instrument at Florida International University, a Hispanic-serving institution, by interviewing students in introductory physics classes using a semistructured protocol, examining students’ responses on the CLASS item statements, and comparing them to the items’ intended meaning. We find that in our predominately Hispanic population, 94% of the students’ interview responses indicate that the students interpret the CLASS items correctly, and thus the CLASS is a valid instrument. We also identify one potentially problematic item in the instrument which one third of the students interviewed consistently misinterpreted.
Inter-categorical intersectionality and leisure-based physical activity in Canada.
Abichahine, Hayfa; Veenstra, Gerry
2017-08-01
Leisure-based physical activity is socially stratified in Canada. To date, inequalities in physical activity by race or ethnicity, gender, class or sexual orientation, in Canada and elsewhere, have largely been investigated as distinct, additive phenomena. Informed by intersectionality theory, this paper examines whether racial identity, gender, class and sexuality 'intersect' with one another to predict physical activity in data from Cycles 2.1 and 3.1 of the Canadian Community Health Survey (n= 149 574). In particular, we apply the intersectional principle of multiplicativity which suggests that people's experiences of their gender identities are raced, classed and sexualized; their racial experiences are gendered, classed and sexualized, and so forth. We find that the positive effect of income on being physically active is strong among visible minority men, of moderate strength among White men and women and weak to non-existent among visible minority women. We also find that a lesbian, gay or bisexual orientation corresponds with a higher likelihood of being physically active among women (especially among less educated women) but not among men. These multiplicative findings undermine additive approaches to investigating social inequalities in leisure-based physical activity and pave the way for future intersectional analyses of axes of inequality and their diverse, intersecting effects. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
Joint Geophysical Inversion With Multi-Objective Global Optimization Methods
NASA Astrophysics Data System (ADS)
Lelievre, P. G.; Bijani, R.; Farquharson, C. G.
2015-12-01
Pareto multi-objective global optimization (PMOGO) methods generate a suite of solutions that minimize multiple objectives (e.g. data misfits and regularization terms) in a Pareto-optimal sense. Providing a suite of models, as opposed to a single model that minimizes a weighted sum of objectives, allows a more complete assessment of the possibilities and avoids the often difficult choice of how to weight each objective. We are applying PMOGO methods to three classes of inverse problems. The first class are standard mesh-based problems where the physical property values in each cell are treated as continuous variables. The second class of problems are also mesh-based but cells can only take discrete physical property values corresponding to known or assumed rock units. In the third class we consider a fundamentally different type of inversion in which a model comprises wireframe surfaces representing contacts between rock units; the physical properties of each rock unit remain fixed while the inversion controls the position of the contact surfaces via control nodes. This third class of problem is essentially a geometry inversion, which can be used to recover the unknown geometry of a target body or to investigate the viability of a proposed Earth model. Joint inversion is greatly simplified for the latter two problem classes because no additional mathematical coupling measure is required in the objective function. PMOGO methods can solve numerically complicated problems that could not be solved with standard descent-based local minimization methods. This includes the latter two classes of problems mentioned above. There are significant increases in the computational requirements when PMOGO methods are used but these can be ameliorated using parallelization and problem dimension reduction strategies.
Wu, Johnny; Witkiewitz, Katie; McMahon, Robert J; Dodge, Kenneth A
2010-10-01
Conduct problems, substance use, and risky sexual behavior have been shown to coexist among adolescents, which may lead to significant health problems. The current study was designed to examine relations among these problem behaviors in a community sample of children at high risk for conduct disorder. A latent growth model of childhood conduct problems showed a decreasing trend from grades K to 5. During adolescence, four concurrent conduct problem and substance use trajectory classes were identified (high conduct problems and high substance use, increasing conduct problems and increasing substance use, minimal conduct problems and increasing substance use, and minimal conduct problems and minimal substance use) using a parallel process growth mixture model. Across all substances (tobacco, binge drinking, and marijuana use), higher levels of childhood conduct problems during kindergarten predicted a greater probability of classification into more problematic adolescent trajectory classes relative to less problematic classes. For tobacco and binge drinking models, increases in childhood conduct problems over time also predicted a greater probability of classification into more problematic classes. For all models, individuals classified into more problematic classes showed higher proportions of early sexual intercourse, infrequent condom use, receiving money for sexual services, and ever contracting an STD. Specifically, tobacco use and binge drinking during early adolescence predicted higher levels of sexual risk taking into late adolescence. Results highlight the importance of studying the conjoint relations among conduct problems, substance use, and risky sexual behavior in a unified model. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
Investigating minority student participation in an authentic science research experience
NASA Astrophysics Data System (ADS)
Preston, Stephanie Danette
In the United States, a problem previously overlooked in increasing the total number of scientifically literate citizens is the lack of diversity in advanced science classes and in science, technology, engineering, and mathematics (STEM) fields. Groups traditionally underserved in science education and thus underrepresented in the STEM fields include: low-income, racial/ethnic minorities, and females of all ethnic and racial backgrounds. Despite the number of these students who are initially interested in science very few of them thrive in the discipline. Some scholars suggest that the declining interest for students underrepresented in science is traceable to K-12th grade learning experiences and access to participating in authentic science. Consequently, the diminishing interest of minorities and women in science contributes negatively to the representation of these groups in the STEM disciplines. The purpose of this study was to investigate a summer science research experience for minority students and the nature of students' participation in scientific discourse and practices within the context of the research experience. The research questions that guided this study are: The nature of the Summer Experience in Earth and Mineral Science (SEEMS) research experience . (A) What are the SEEMS intended outcomes? (B) To what extent does SEEMS enacted curriculum align with the intended outcomes of the program? The nature of students engagement in the SEEMS research. (A) In what ways do students make sense of and apply science concepts as they engage in the research (e.g., understand problem, how they interpret data, how they construct explanations), and the extent to which they use the science content appropriately? (B) In what ways do students engage in the cultural practices of science, such as using scientific discourse, interpreting inscriptions, and constructing explanations from evidence (engaging in science practices, knowing science and doing science)? The following data sources were used in this study: SEEMS curriculum and documentation, interviews with program staff and participants, TRIO program documentation, Upward Bound Math Science (UBMS) promotional material, and audio/video recordings and field notes of students' daily interactions in the research setting. Findings revealed that students who participated in the research experience were able to successfully engage in some cultural practices of science, such as using inscriptions, constructing explanations, and collecting data. Analysis and observations of their engagement demonstrated a need for programs similar to SEEMS to focus on: (1) understanding how students make sense of science as they engage in the cultural practices, and (2) incorporating aspects of students' culture and social practices into the experience.
Woodward, Amanda Toler; Chatters, Linda M.; Taylor, Harry Owen; Taylor, Robert Joseph
2014-01-01
Objectives Examines combinations of professionals visited for a serious personal problem. Methods The sample includes those aged 55 and older (n=862) from the National Survey of American Life (NSAL). Latent class analysis was used to identify groups of respondents based on types of professionals visited. Multinomial logistic regression was used to identify factors associated with group membership. Results Classes included health provider plus clergy, physician plus mental health provider, and limited provider use. Whites were more likely than African Americans to fall into the health provider plus clergy and physician plus mental health provider classes. Those with physical and emotional problems were more likely to be in the health provider plus clergy and physician plus mental health provider classes, respectively. Discussion Most respondents were in the limited provider use class suggesting that for many of problems, minimal professional help is utilized. Physicians and clergy were important across all three classes. PMID:25552527
Edgerton, Jason D; Keough, Matthew T; Roberts, Lance W
2018-02-21
This study examines whether there are multiple joint trajectories of depression and problem gambling co-development in a sample of emerging adults. Data were from the Manitoba Longitudinal Study of Young Adults (n = 679), which was collected in 4 waves across 5 years (age 18-20 at baseline). Parallel process latent class growth modeling was used to identified 5 joint trajectory classes: low decreasing gambling, low increasing depression (81%); low stable gambling, moderate decreasing depression (9%); low stable gambling, high decreasing depression (5%); low stable gambling, moderate stable depression (3%); moderate stable problem gambling, no depression (2%). There was no evidence of reciprocal growth in problem gambling and depression in any of the joint classes. Multinomial logistic regression analyses of baseline risk and protective factors found that only neuroticism, escape-avoidance coping, and perceived level of family social support were significant predictors of joint trajectory class membership. Consistent with the pathways model framework, we observed that individuals in the problem gambling only class were more likely using gambling as a stable way to cope with negative emotions. Similarly, high levels of neuroticism and low levels of family support were associated with increased odds of being in a class with moderate to high levels of depressive symptoms (but low gambling problems). The results suggest that interventions for problem gambling and/or depression need to focus on promoting more adaptive coping skills among more "at-risk" young adults, and such interventions should be tailored in relation to specific subtypes of comorbid mental illness.
Drabble, Laurie; Trocki, Karen F.; Klinger, Jamie L.
2016-01-01
Objective Despite research documenting disparities in risk for alcohol-related problems among sexual minority women, few studies explore potential protective factors within this population. This study examines how religiosity may function as a protective or risk factor for alcohol-problems or other substance use among sexual minorities compared to heterosexuals. Method Data from 11,169 women who responded to sexual identity and sexual behavior questions from three population-based National Alcohol Survey waves (2000, 2005, 2010) were utilized for analyses of religiosity in relation to lifetime drinking, past year hazardous drinking, and past year drug use. Results Religiosity was significantly greater among exclusively heterosexual women compared to all sexual minority groups (lesbian, bisexual and heterosexual women who report same sex partners). Lesbians reported the lowest rates of affiliation with religions/denominations discouraging alcohol use. Past year hazardous drinking and use of any illicit drugs were significantly lower among exclusively heterosexual women compared to all sexual minority groups. High religiosity was associated with lifetime alcohol abstention and was found to be protective against hazardous drinking and drug use among both sexual minority and heterosexual women. Reporting religious norms unfavorable to drinking was protective against hazardous drinking among exclusively heterosexual women but not sexual minority women Conclusions Findings reveal the importance of considering sexual minority status in evaluation of religion or spirituality as protective among women. Future studies should explore religiosity in the context of other individual and environmental factors, such as positive identity development and community-level acceptance, which may be salient to resiliency among sexual minorities. PMID:26857897
Introductory Course Based on a Single Problem: Learning Nucleic Acid Biochemistry from AIDS Research
ERIC Educational Resources Information Center
Grover, Neena
2004-01-01
In departure from the standard approach of using several problems to cover specific topics in a class, I use a single problem to cover the contents of the entire semester-equivalent biochemistry classes. I have developed a problem-based service-learning (PBSL) problem on HIV/AIDS to cover nucleic acid concepts that are typically taught in the…
Palamar, Joseph J.; Calzada, Esther J.; Theise, Rachelle; Huang, Keng-Yen; Petkova, Eva; Brotman, Laurie Miller
2017-01-01
Minority children attending schools in urban socioeconomically disadvantaged neighborhoods are at high risk for conduct problems. Although a number of family and neighborhood characteristics have been implicated in the onset and progression of conduct problems, there remains incomplete understanding of the unique contributions of poverty-related factors early in development. This prospective study of 298 black public school children considered family- and neighborhood-level predictors of teacher-reported conduct problems from pre-kindergarten through first grade. Results from multi-level analyses indicate that percentage of poor residents in a student’s neighborhood made a robust independent contribution to the prediction of development of conduct problems, over and above family- and other neighborhood-level demographic factors. For children of single parents, the percentage of black residents in the neighborhood also predicted the development of conduct problems. School-based interventions to prevent conduct problems should consider impact for children at highest risk based on neighborhood poverty. PMID:24673380
Palamar, Joseph J; Calzada, Esther J; Theise, Rachelle; Huang, Keng-Yen; Petkova, Eva; Brotman, Laurie Miller
2015-01-01
Minority children attending schools in urban socioeconomically disadvantaged neighborhoods are at high risk for conduct problems. Although a number of family and neighborhood characteristics have been implicated in the onset and progression of conduct problems, there remains incomplete understanding of the unique contributions of poverty-related factors early in development. This prospective study of 298 black public school children considered family- and neighborhood-level predictors of teacher-reported conduct problems from pre-kindergarten through first grade. Results from multi-level analyses indicate that percentage of poor residents in a student's neighborhood made a robust independent contribution to the prediction of development of conduct problems, over and above family- and other neighborhood-level demographic factors. For children of single parents, the percentage of black residents in the neighborhood also predicted the development of conduct problems. School-based interventions to prevent conduct problems should consider impact for children at highest risk based on neighborhood poverty.
Migratory Farmworker Problems and Needs.
ERIC Educational Resources Information Center
McElroy, Robert C.
Despite much publicity, hearings, legislative efforts, and other minor accomplishments in recent years, migrants are still one of the most disadvantaged and impoverished groups in the U.S. Among their problems is that they have neither the political, economic, nor other means of mitigating their problems. Some of their problems include uncertain…
Transferring Minority Employees: Are They Being Treated Fairly?
ERIC Educational Resources Information Center
Moore, John M.
1975-01-01
As corporations try to relocate and hire minority group members in all categories of employment, they may be ignoring a very basic problem, their housing needs. Discriminatory home pricing and financing policies may severely restrict a company's efforts to remain an equal opportunity employer. (Author)
Health-Promoting and Health-Compromising Behaviors among Minority Adolescents.
ERIC Educational Resources Information Center
Wilson, Dawn K., Ed.; Rodrigue, James R., Ed.; Taylor, Wendell C., Ed.
This book examines the importance of advocating healthy lifestyles among minority adolescents, who are at increased risk for particular health problems. The three central themes: highlight similarities and differences across diverse ethnic groups of adolescents while respecting their heterogeneity; emphasize innovative and culturally based…
Culture and Ownership: Schooling of Minority Students.
ERIC Educational Resources Information Center
Au, Kathryn H.; Kawakami, Alice J.
1991-01-01
Discusses possible solutions to the problem of schools' widespread failure to meet minority students' needs. Considers theoretical perspectives that underlie these possible solutions, and illustrates the application of the solutions through examples of teachers' work with students of native Hawaiian ancestry at the Kamehameha Elementary Education…
SVM-Fold: a tool for discriminative multi-class protein fold and superfamily recognition
Melvin, Iain; Ie, Eugene; Kuang, Rui; Weston, Jason; Stafford, William Noble; Leslie, Christina
2007-01-01
Background Predicting a protein's structural class from its amino acid sequence is a fundamental problem in computational biology. Much recent work has focused on developing new representations for protein sequences, called string kernels, for use with support vector machine (SVM) classifiers. However, while some of these approaches exhibit state-of-the-art performance at the binary protein classification problem, i.e. discriminating between a particular protein class and all other classes, few of these studies have addressed the real problem of multi-class superfamily or fold recognition. Moreover, there are only limited software tools and systems for SVM-based protein classification available to the bioinformatics community. Results We present a new multi-class SVM-based protein fold and superfamily recognition system and web server called SVM-Fold, which can be found at . Our system uses an efficient implementation of a state-of-the-art string kernel for sequence profiles, called the profile kernel, where the underlying feature representation is a histogram of inexact matching k-mer frequencies. We also employ a novel machine learning approach to solve the difficult multi-class problem of classifying a sequence of amino acids into one of many known protein structural classes. Binary one-vs-the-rest SVM classifiers that are trained to recognize individual structural classes yield prediction scores that are not comparable, so that standard "one-vs-all" classification fails to perform well. Moreover, SVMs for classes at different levels of the protein structural hierarchy may make useful predictions, but one-vs-all does not try to combine these multiple predictions. To deal with these problems, our method learns relative weights between one-vs-the-rest classifiers and encodes information about the protein structural hierarchy for multi-class prediction. In large-scale benchmark results based on the SCOP database, our code weighting approach significantly improves on the standard one-vs-all method for both the superfamily and fold prediction in the remote homology setting and on the fold recognition problem. Moreover, our code weight learning algorithm strongly outperforms nearest-neighbor methods based on PSI-BLAST in terms of prediction accuracy on every structure classification problem we consider. Conclusion By combining state-of-the-art SVM kernel methods with a novel multi-class algorithm, the SVM-Fold system delivers efficient and accurate protein fold and superfamily recognition. PMID:17570145
Flippin' Fluid Mechanics--Comparison Using Two Groups
ERIC Educational Resources Information Center
Webster, Donald R.; Majerich, David M.; Madden, Amanda G.
2016-01-01
A flipped classroom approach was implemented in an undergraduate fluid mechanics course. Students watched short, online video lectures before class, participated in active in-class problem solving sessions (in pairs), and completed individualized online quizzes weekly. In-class activities were designed to develop problem-solving skills and teach…
Characterizing the Fundamental Intellectual Steps Required in the Solution of Conceptual Problems
NASA Astrophysics Data System (ADS)
Stewart, John
2010-02-01
At some level, the performance of a science class must depend on what is taught, the information content of the materials and assignments of the course. The introductory calculus-based electricity and magnetism class at the University of Arkansas is examined using a catalog of the basic reasoning steps involved in the solution of problems assigned in the class. This catalog was developed by sampling popular physics textbooks for conceptual problems. The solution to each conceptual problem was decomposed into its fundamental reasoning steps. These fundamental steps are, then, used to quantify the distribution of conceptual content within the course. Using this characterization technique, an exceptionally detailed picture of the information flow and structure of the class can be produced. The intellectual structure of published conceptual inventories is compared with the information presented in the class and the dependence of conceptual performance on the details of coverage extracted. )
Ein-Dor, L; Metzler, R; Kanter, I; Kinzel, W
2001-06-01
The generalization of the problem of adaptive competition, known as the minority game, to the case of K possible choices for each player, is addressed, and applied to a system of interacting perceptrons with input and output units of a type of K-state Potts spins. An optimal solution of this minority game, as well as the dynamic evolution of the adaptive strategies of the players, are solved analytically for a general K and compared with numerical simulations.
OTIS, MELANIE D.; OSER, CARRIE B.; STATON-TINDALL, MICHELE
2016-01-01
This exploratory study examines the relationship between sexual identity and violent victimization experiences as predictors of differences in illicit substance and alcohol use and substance use problems among a sample of incarcerated women in rural Appalachia (N = 400). Results indicated that, compared to heterosexual women, sexual minority women were more likely to have a lifetime history of weapon, physical, and sexual assault, and were younger at the time of their first violent victimization. Sexual minority women were younger than heterosexual women at the age of onset for intravenous drug use and at the time they first got drunk, and were more likely to report having overdosed. Multivariate analysis found violent victimization to be the strongest predictor of a history of overdose and substance use problems. PMID:27660590
Minority Women and Advocacy for Women's Health
Kumanyika, Shiriki K.; Morssink, Christiaan B.; Nestle, Marion
2001-01-01
US minority health issues involve racial/ethnic disparities that affect both women and men. However, women's health advocacy in the United States does not consistently address problems specific to minority women. The underlying evolution and political strength of the women's health and minority health movements differ profoundly. Women of color comprise only one quarter of women's health movement constituents and are, on average, socioeconomically disadvantaged. Potential alliances may be inhibited by vestiges of historical racial and social divisions that detract from feelings of commonality and mutual support. Nevertheless, insufficient attention to minority women's issues undermines the legitimacy of the women's health movement and may prevent important advances that can be achieved only when diversity is fully considered. PMID:11527764
Randall, Ashley K; Totenhagen, Casey J; Walsh, Kelsey J; Adams, Caroline; Tao, Chun
2017-01-02
Sexual minorities are exposed to stressors in the workplace (workplace minority stress), which can be detrimental for well-being (e.g., levels of anxiety). The present study examined whether a particular set of relationship processes, dyadic coping, served to moderate the association between workplace minority stress and symptoms of anxiety. Using a dyadic sample of 64 female same-sex couples, we found that partner problem-focused supportive dyadic coping (DC) and emotion-focused supportive DC (marginally) buffered, whereas partner delegated DC and negative DC did not moderate, the association between workplace minority stress and symptoms of anxiety. Implications for relationship researchers and mental health practitioners are discussed.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Singleton, Jr., Robert
This report documents the implementation of several related 1D heat flow problems in the verification package ExactPack [1]. In particular, the planar sandwich class defined in Ref. [2], as well as the classes PlanarSandwichHot, PlanarSandwichHalf, and other generalizations of the planar sandwich problem, are defined and documented here. A rather general treatment of 1D heat flow is presented, whose main results have been implemented in the class Rod1D. All planar sandwich classes are derived from the parent class Rod1D.
Victimization, Smoking, and Chronic Physical Health Problems Among Sexual Minority Women
Simoni, Jane M.
2014-01-01
Background Sexual minority women (SMW) have been shown to be at increased risk for abuse, smoking, and chronic physical health problems compared with heterosexual women. In the general population, abuse and smoking are associated with physical health problems. However, there has been little research on their associations among SMW. Purpose The current study examined a mediational model of abuse, smoking, and self-reported physical health conditions in a national sample of SMW. Methods Participants (N=1,224) were recruited via the Internet and completed measures of childhood trauma, adult sexual assault, smoking, body mass index, and chronic medical conditions. Results Structural equation modeling demonstrated that childhood abuse was associated with adult sexual assault, smoking, and physical health problems, but smoking was not a significant mediator. Conclusions The results highlight the impact of childhood abuse on physical health problems among SMW and the need to examine other health behaviors that may mediate this relation. PMID:21735343
Housing Problems of Minorities
ERIC Educational Resources Information Center
Weaver, Robert
1975-01-01
This testimony, before a public hearing of the New York City Commission on Human Rights in May 1974, reviews the status of minority group housing and the effects of federal programs upon it, advocating an approach which recognizes the intrinsic locational and real estate value of many black ghettos. (Author/JM)
Inattention and Hyperactivity and the Achievement Gap among Urban Minority Youth
ERIC Educational Resources Information Center
Basch, Charles E.
2011-01-01
Objectives: To outline the prevalence and disparities of inattention and hyperactivity among school-aged urban minority youth, causal pathways through which inattention and hyperactivity adversely affects academic achievement, and proven or promising approaches for schools to address these problems. Methods: Literature review. Results:…
Limited rights of minors in the Dutch healthcare.
Brands, Wolter; Brands, Marieke; Brands-Bottema, Gea
2014-11-30
In many countries, if not all, the autonomy of minors is limited. Especially in countries with comprehensive legislation in the field of health law the (lack of) autonomy of minors may create challenges. These problems become more complex if the costs of treatment are not paid by the government or covered by insurance. Some challenges are: At what age is a minor able to decide about his health? As not every treatment is the same, how should the system take this into account? The Netherlands has a long history of very comprehensive health care legislation. This legislation includes a section about the treatment of minors that addresses the questions of the conditions in which the autonomy of minors is limited. Though this legislation is limited to the Netherlands other countries face the same challenges.
Does the non-identity problem block a class of arguments against cloning?
Green, Richard
2004-01-01
One class of argument against cloning human beings in the contemporary literature focuses on the bad consequences that will befall the clone or "later-twin." In this paper I consider whether this line of argumentation can be blocked by invoking Parfit's non-identity problem. I canvass two general strategies for solving the non-identity problem: a consequentialist strategy and non-consequentialist, rights based strategy. I argue that while each general strategy offers a plausible solution to the non-identity problem as applied to the cases most frequently discussed in the non-identity problem literature, neither provides a reason for putting aside the non-identity problem when applied to cloning. I conclude (roughly) that the non-identity problem does serve to block this class of argument against cloning.
Research and Technology Report: 1997
NASA Technical Reports Server (NTRS)
Sakimoto, Philip; Friedman, Jonathan (Editor)
1997-01-01
This volume highlights the most significant results from research and development projects sponsored through NASA's Office of Equal Opportunity Programs, Minority University Research and Education Division, in collaboration with Headquarters Program Offices, during Academic Year 1996-97 and Summer 1996. It includes the work of major multidisciplinary research groups, such as those sponsored under NASA's University Research Centers at Minority Institutions and Institutional Research Awards programs, as well as that of individual principal investigators sponsored under the Faculty Awards for Research or other MUREP programs. It encompasses contributions from 863 students and 388 faculty-level researchers at institutions eligible to compete for MUREP funding, including: Historically Black Colleges and Universities (HBCU), Hispanic-Serving Institutions (HSI), Tribal Colleges and Universities (TCU), and accredited minority colleges or universities with a 50 percent or greater underrepresented minority student enrollment. It stands as a testimony to NASA's response to Executive Orders 12876, 12900, and 13021, which mandate increased Federal support to these classes of institutions. We firmly believe that maintaining America's leadership in aerospace and related areas depends on fully utilizing the talents available at the Nation's minority universities.
Using Clickers to Facilitate Development of Problem-Solving Skills
Levesque, Aime A.
2011-01-01
Classroom response systems, or clickers, have become pedagogical staples of the undergraduate science curriculum at many universities. In this study, the effectiveness of clickers in promoting problem-solving skills in a genetics class was investigated. Students were presented with problems requiring application of concepts covered in lecture and were polled for the correct answer. A histogram of class responses was displayed, and students were encouraged to discuss the problem, which enabled them to better understand the correct answer. Students were then presented with a similar problem and were again polled. My results indicate that those students who were initially unable to solve the problem were then able to figure out how to solve similar types of problems through a combination of trial and error and class discussion. This was reflected in student performance on exams, where there was a statistically significant positive correlation between grades and the percentage of clicker questions answered. Interestingly, there was no clear correlation between exam grades and the percentage of clicker questions answered correctly. These results suggest that students who attempt to solve problems in class are better equipped to solve problems on exams. PMID:22135374
Multicategory Composite Least Squares Classifiers
Park, Seo Young; Liu, Yufeng; Liu, Dacheng; Scholl, Paul
2010-01-01
Classification is a very useful statistical tool for information extraction. In particular, multicategory classification is commonly seen in various applications. Although binary classification problems are heavily studied, extensions to the multicategory case are much less so. In view of the increased complexity and volume of modern statistical problems, it is desirable to have multicategory classifiers that are able to handle problems with high dimensions and with a large number of classes. Moreover, it is necessary to have sound theoretical properties for the multicategory classifiers. In the literature, there exist several different versions of simultaneous multicategory Support Vector Machines (SVMs). However, the computation of the SVM can be difficult for large scale problems, especially for problems with large number of classes. Furthermore, the SVM cannot produce class probability estimation directly. In this article, we propose a novel efficient multicategory composite least squares classifier (CLS classifier), which utilizes a new composite squared loss function. The proposed CLS classifier has several important merits: efficient computation for problems with large number of classes, asymptotic consistency, ability to handle high dimensional data, and simple conditional class probability estimation. Our simulated and real examples demonstrate competitive performance of the proposed approach. PMID:21218128
NASA Astrophysics Data System (ADS)
Aurora, Tarlok
2005-04-01
In a calculus-based introductory physics course, students were assigned to write the statements of word problems (along with the accompanying diagrams if any), analyze these, identify important concepts/equations and try to solve these end-of- chapter homework problems. They were required to bring to class their written assignment until the chapter was completed in lecture. These were quickly checked at the beginning of the class. In addition, re-doing selected solved examples in the textbook were assigned as homework. Where possible, students were asked to look for similarities between the solved-examples and the end-of-the-chapter problems, or occasionally these were brought to the students' attention. It was observed that many students were able to solve several of the solved-examples on the test even though the instructor had not solved these in class. This was seen as an improvement over the previous years. It made the students more responsible for their learning. Another benefit was that it alleviated the problems previously created by many students not bringing the textbooks to class. It allowed more time for problem solving/discussions in class.
Griffin, Kenneth W; Scheier, Lawrence M; Acevedo, Bianca; Grenard, Jerry L; Botvin, Gilbert J
2012-01-01
High risk alcohol use and sexual behaviors peak in young adulthood and often occur in the same individuals. Alcohol use has been found to impair decision-making and contribute to high risk sexual activity. However, the association between alcohol use and risky sexual behavior may also reflect enduring individual differences in risk taking, sociability, self-control, and related variables. Both behaviors can serve similar functions related to recreation, interpersonal connection, and the pursuit of excitement or pleasure. The present study examined the extent to which high risk drinking and sexual behavior clustered together in a sample of urban minority young adult women, a demographic group at elevated risk for negative outcomes related to sexual health. We tested whether psychosocial functioning measured at the beginning of high school predicted classes of risk behaviors when girls were tracked longitudinally into young adulthood. Latent class analysis indicated three distinct profiles based on high risk drinking and sexual behavior (i.e., multiple sex partners) in young adulthood. The largest class (73% of the sample) reported low levels of risky drinking and sexual behavior. The next largest class (19%) reported high risk drinking and low risk sexual behavior, and the smallest class (8%) reported high levels of both behaviors. Compared to women from other racial/ethnic groups, black women were more likely to be categorized in the high risk drinking/low risk sex class. Multinomial logistic regression indicated that self-control in adolescence had a broad and enduring protective effect on risk behaviors eight years later and was associated with a greater probability of being in the low risk drinking/low risk sex class. Findings are discussed in terms of understanding the phenotypic expressions of risk behavior as they relate to early psychosocial development and the long-term protective function of self-control in reducing high risk drinking and sexual behaviors.
Griffin, Kenneth W.; Scheier, Lawrence M.; Acevedo, Bianca; Grenard, Jerry L.; Botvin, Gilbert J.
2011-01-01
High risk alcohol use and sexual behaviors peak in young adulthood and often occur in the same individuals. Alcohol use has been found to impair decision-making and contribute to high risk sexual activity. However, the association between alcohol use and risky sexual behavior may also reflect enduring individual differences in risk taking, sociability, self-control, and related variables. Both behaviors can serve similar functions related to recreation, interpersonal connection, and the pursuit of excitement or pleasure. The present study examined the extent to which high risk drinking and sexual behavior clustered together in a sample of urban minority young adult women, a demographic group at elevated risk for negative outcomes related to sexual health. We tested whether psychosocial functioning measured at the beginning of high school predicted classes of risk behaviors when girls were tracked longitudinally into young adulthood. Latent class analysis indicated three distinct profiles based on high risk drinking and sexual behavior (i.e., multiple sex partners) in young adulthood. The largest class (73% of the sample) reported low levels of risky drinking and sexual behavior. The next largest class (19%) reported high risk drinking and low risk sexual behavior, and the smallest class (8%) reported high levels of both behaviors. Compared to women from other racial/ethnic groups, black women were more likely to be categorized in the high risk drinking/low risk sex class. Multinomial logistic regression indicated that self-control in adolescence had a broad and enduring protective effect on risk behaviors eight years later and was associated with a greater probability of being in the low risk drinking/low risk sex class. Findings are discussed in terms of understanding the phenotypic expressions of risk behavior as they relate to early psychosocial development and the long-term protective function of self-control in reducing high risk drinking and sexual behaviors. PMID:22470274
Colder Carras, Michelle; Kardefelt-Winther, Daniel
2018-04-01
The proposed diagnosis of Internet gaming disorder (IGD) in DSM-5 has been criticized for "borrowing" criteria related to substance addiction, as this might result in misclassifying highly involved gamers as having a disorder. In this paper, we took a person-centered statistical approach to group adolescent gamers by levels of addiction-related symptoms and gaming-related problems, compared these groups to traditional scale scores for IGD, and checked how groups were related to psychosocial well-being using a preregistered analysis plan. We performed latent class analysis and regression with items from IGD and psychosocial well-being scales in a representative sample of 7865 adolescent European gamers. Symptoms and problems matched in only two groups: an IGD class (2.2%) having a high level of symptoms and problems and a Normative class (63.5%) having low levels of symptoms and problems. We also identified two classes comprising 30.9% of our sample that would be misclassified based on their report of gaming-related problems: an Engaged class (7.3%) that seemed to correspond to the engaged gamers described in previous literature, and a Concerned class (23.6%) reporting few symptoms but moderate to high levels of problems. Our findings suggest that a reformulation of IGD is needed. Treating Engaged gamers as having IGD when their poor well-being might not be gaming related may delay appropriate treatment, while Concerned gamers may need help to reduce gaming but would not be identified as such. Additional work to describe the phenomenology of these two groups would help refine diagnosis, prevention and treatment for IGD.
Zamorski, Mark A; Rusu, Corneliu; Garber, Bryan G
2014-01-01
Objective: An important minority of military personnel will experience mental health problems after overseas deployments. Our study sought to describe the prevalence and correlates of postdeployment mental health problems in Canadian Forces personnel. Method: Subjects were 16 193 personnel who completed postdeployment screening after return from deployment in support of the mission in Afghanistan. Screening involved a detailed questionnaire and a 40-minute, semi-structured interview with a mental health clinician. Mental health problems were assessed using the Patient Health Questionnaire and the Posttraumatic Stress Disorder Checklist—Civilian Version. Logistic regression was used to explore independent risk factors for 1 or more of 6 postdeployment mental health problems. Results: Symptoms of 1 or more of 6 mental health problems were seen in 10.2% of people screened; the most prevalent symptoms were those of major depressive disorder (3.2%), minor depression (3.3%), and posttraumatic stress disorder (2.8%). The strongest risk factors for postdeployment mental health problems were past mental health care (adjusted odds ratio [AOR] 2.89) and heavy combat exposure (AOR 2.57 for third tertile, compared with first tertile). These risk groups might be targeted in prevention and control efforts. In contrast to findings from elsewhere, Reservist status, deployment duration, and number of previous deployments had no relation with mental health problems. Conclusions: An important minority of personnel will disclose symptoms of mental health problems during postdeployment screening. Differences in risk factors seen in different nations highlight the need for caution in applying the results of research in one population to another. PMID:25007406
Darney, Dana; Reinke, Wendy M.; Herman, Keith C.; Stormont, Melissa; Ialongo, Nicholas S.
2012-01-01
The aim of the current study was to evaluate the eleven year longitudinal association between students identified in first grade as having academic and behavior problems and distal outcomes in twelfth grade. The study extends prior research that identified latent classes of academic and behavior problems in a longitudinal community sample of 678 predominately African American first-grade students. The type and number of classes identified in first grade differed by gender, but results indicated that students within the classes of behavior and academic problems had long-term negative outcomes in the twelfth grade. The class with co-occurring academic and behavior problems in first grade had the greatest risk for negative distal outcomes for both boys and girls including higher likelihood of special education placement, mental health service use, poor academic achievement, and school dropout. Implications for prevention, early intervention, and current practices in schools are discussed. PMID:23375176
ADOPTING THE PROBLEM BASED LEARNING APPROACH IN A GIS PROJECT MANAGEMENT CLASS
Problem Based Learning (PBL) is a process that emphasizes the need for developing problem solving skills through hands-on project formulation and management. A class adopting the PBL method provides students with an environment to acquire necessary knowledge to encounter, unders...
1980-10-01
faster than previous algorithms. Indeed, with only minor modifications, the standard multigrid programs solve the LCP with essentially the same efficiency... Lemna 2.2. Let Uk be the solution of the LCP (2.3), and let uk > 0 be an approximate solu- tion obtained after one or more Gk projected sweeps. Let...in Figure 3.2, Ivu IIG decreased from .293 10 to .110 10 with the expenditure of (99.039-94.400) = 4.639 work units. While minor variations do arise, a
Encouraging Reading and Language Development in Cultural Minority Children.
ERIC Educational Resources Information Center
Kawakami, Alice J.; Au, Kathryn Hu-pei
1986-01-01
The article reviews approaches used in the Kamehameha Elementary Education Program (KEEP) in Hawaii to increase reading skills of educationally at-risk Polynesian-Hawaiian children (K-grade 3). Whole class story reading lessons and small group reading comprehension lessons are described. (CL)
49 CFR 1180.2 - Types of transactions.
Code of Federal Regulations, 2010 CFR
2010-10-01
... OF TRANSPORTATION RULES OF PRACTICE RAILROAD ACQUISITION, CONTROL, MERGER, CONSOLIDATION PROJECT... types: Major, significant, minor, and exempt. (a) A major transaction is a control or merger involving... control or merger of two or more class I railroads that is of regional or national transportation...
Healthcare law in France: towards healthcare emancipation for minors.
Rougé-Maillart, C; Jousset, N; Penneau, M
2007-01-01
In France, since 1974 the rights of minors have been gaining ground. The first provisions to this end concerned medical acts in relation to the minor's sexuality (contraceptives and pregnancy termination). The law dated March 4, 2002, relating to patients' rights, gave more scope to this movement, by widening minors' rights so that they could demand confidentiality with regard to their parents. The minor's exercising of these rights can pose a lot of problems. In French law, parental authority is the main representation of the minor. The medical doctor treating a minor must obtain parental authorization. However, the public healthcare code provides that the doctor can override parental wishes during some situations (emergency; parents refuse). But these situations are exceptional. Since 2002, the legislator has gone further, by allowing the doctor to grant requests for care by the minor without parental authorization. However, parental authority remains the normal framework for the protection of a minor. The doctor will have to judge the reasoning and motives of a minor requesting confidentiality regarding their parents in order to decide whether he should grant or refuse care in such conditions.
NASA Astrophysics Data System (ADS)
Fayon, A. K.; Eyssautier, C.
2008-12-01
Introductory geoscience courses at large urban institutions have the potential to increase the scientific literacy of the general population. Therefore, engaging all students in the classroom is critical. As instructors of these courses for non-majors, we have all observed students disengaging from the class for a number of reasons. One hypothesis is students feel out of their element in a large, academic institution. This is particularly true for underrepresented minority, low-income first generation, and immigrant college students - the students on one side of the postsecondary science enrollment gap. This research addresses how, through pedagogy and content, we can engage a more diverse population of students by changing their attitudes towards science. We administered the Colorado Learning Attitudes about Science Survey (CLASS) instrument, modified for geology, to students enrolled in introductory geology courses (GEO1001 and PsTL1171) at the University of Minnesota - Twin Cities. This survey consists of 42 questions that measure students" pre- and post-course attitudes towards geology and physical sciences. GEO1001 is a large lecture course where the laboratory content is independent from lecture content. PSTL1171 is offered through the Department of Postsecondary Teaching and Learning; this course has smaller class sizes, and lecture and laboratory content are fully integrated. Demographically, students of color comprise 23% of the student population in GEO1001, in contrast to 73% in PsTL1171. Overall, responses from all students surveyed show a positive shift in attitudes and confidence. However, in comparing responses from only students of color, those enrolled in PsTL1171 demonstrated greater favorable shifts in the categories of personal interests and problem solving confidence. The pre-course responses also indicate that students of color in PsTL1171 started the course with more favorable attitudes towards real world connections than those students in GEO1001. These preliminary survey results reinforce the connection between attitude, confidence, and pedagogy, particularly for underrepresented minority students. Furthermore, the knowledge of increased attitude towards real world connections among students of color can be used in course content development in order to engage a more diverse student population. Future research will address the role of pedagogy on the acquisition and retention of knowledge in these introductory courses.
NASA Astrophysics Data System (ADS)
Safadi, Rafi'; Safadi, Ekhlass; Meidav, Meir
2017-01-01
This study compared students’ learning in troubleshooting and problem solving activities. The troubleshooting activities provided students with solutions to conceptual problems in the form of refutation texts; namely, solutions that portray common misconceptions, refute them, and then present the accepted scientific ideas. They required students to individually diagnose these solutions; that is, to identify the erroneous and correct parts of the solutions and explain in what sense they differed, and later share their work in whole class discussions. The problem solving activities required the students to individually solve these same problems, and later share their work in whole class discussions. We compared the impact of the individual work stage in the troubleshooting and problem solving activities on promoting argumentation in the subsequent class discussions, and the effects of these activities on students’ engagement in self-repair processes; namely, in learning processes that allowed the students to self-repair their misconceptions, and by extension on advancing their conceptual knowledge. Two 8th grade classes studying simple electric circuits with the same teacher took part. One class (28 students) carried out four troubleshooting activities and the other (31 students) four problem solving activities. These activities were interwoven into a twelve lesson unit on simple electric circuits that was spread over a period of 2 months. The impact of the troubleshooting activities on students’ conceptual knowledge was significantly higher than that of the problem solving activities. This result is consistent with the finding that the troubleshooting activities engaged students in self-repair processes whereas the problem solving activities did not. The results also indicated that diagnosing solutions to conceptual problems in the form of refutation texts, as opposed to solving these same problems, apparently triggered argumentation in subsequent class discussions, even though the teacher was unfamiliar with the best ways to conduct argumentative classroom discussions. We account for these results and suggest possible directions for future research.
D'Hooge, Lorenzo; Achterberg, Peter; Reeskens, Tim
2018-02-01
The traditional approach to class voting has largely ignored the question whether material class positions coincide with subjective class identification. Following Sosnaud et al. (2013), this study evaluates party preferences when Europeans' material and subjective social class do not coincide. Seminal studies on voting behavior have suggested that members of lower classes are more likely to vote for the economic left and cultural right and that higher classes demonstrate the opposite pattern. Yet, these studies have on the one hand overlooked the possibility that there is a mismatch between the material class people can be classified in and the class they think they are part of, and on the other hand the consequences of this discordant class identification on voting behavior. Analyzing the 2009 wave of the European Elections Study, we find that the majority of the Europeans discordantly identify with the middle class, whereas only a minority of the lower and higher classes concordantly identify with their material social class. Further, material class only seems to predict economic voting behavior when it coincides with subjective class; for instance, individuals who have an inflated class identification are more likely to vote for the economic left, even when they materially can be classified as middle or high class. We conclude this paper with a discussion on scholarly debates concerning class and politics. Copyright © 2017 Elsevier Inc. All rights reserved.
GeoGebra Assist Discovery Learning Model for Problem Solving Ability and Attitude toward Mathematics
NASA Astrophysics Data System (ADS)
Murni, V.; Sariyasa, S.; Ardana, I. M.
2017-09-01
This study aims to describe the effet of GeoGebra utilization in the discovery learning model on mathematical problem solving ability and students’ attitude toward mathematics. This research was quasi experimental and post-test only control group design was used in this study. The population in this study was 181 of students. The sampling technique used was cluster random sampling, so the sample in this study was 120 students divided into 4 classes, 2 classes for the experimental class and 2 classes for the control class. Data were analyzed by using one way MANOVA. The results of data analysis showed that the utilization of GeoGebra in discovery learning can lead to solving problems and attitudes towards mathematics are better. This is because the presentation of problems using geogebra can assist students in identifying and solving problems and attracting students’ interest because geogebra provides an immediate response process to students. The results of the research are the utilization of geogebra in the discovery learning can be applied in learning and teaching wider subject matter, beside subject matter in this study.
Patterns of perceived barriers to medical care in older adults: a latent class analysis.
Thorpe, Joshua M; Thorpe, Carolyn T; Kennelty, Korey A; Pandhi, Nancy
2011-08-03
This study examined multiple dimensions of healthcare access in order to develop a typology of perceived barriers to healthcare access in community-dwelling elderly. Secondary aims were to define distinct classes of older adults with similar perceived healthcare access barriers and to examine predictors of class membership to identify risk factors for poor healthcare access. A sample of 5,465 community-dwelling elderly was drawn from the 2004 wave of the Wisconsin Longitudinal Study. Perceived barriers to healthcare access were measured using items from the Group Health Association of America Consumer Satisfaction Survey. We used latent class analysis to assess the constellation of items measuring perceived barriers in access and multinomial logistic regression to estimate how risk factors affected the probability of membership in the latent barrier classes. Latent class analysis identified four classes of older adults. Class 1 (75% of sample) consisted of individuals with an overall low level of risk for perceived access problems (No Barriers). Class 2 (5%) perceived problems with the availability/accessibility of healthcare providers such as specialists or mental health providers (Availability/Accessibility Barriers). Class 3 (18%) perceived problems with how well their providers' operations arise organized to accommodate their needs and preferences (Accommodation Barriers). Class 4 (2%) perceived problems with all dimension of access (Severe Barriers). Results also revealed that healthcare affordability is a problem shared by members of all three barrier groups, suggesting that older adults with perceived barriers tend to face multiple, co-occurring problems. Compared to those classified into the No Barriers group, those in the Severe Barrier class were more likely to live in a rural county, have no health insurance, have depressive symptomatology, and speech limitations. Those classified into the Availability/Accessibility Barriers group were more likely to live in rural and micropolitan counties, have depressive symptomatology, more chronic conditions, and hearing limitations. Those in the Accommodation group were more likely to have depressive symptomatology and cognitive limitations. The current study identified a typology of perceived barriers in healthcare access in older adults. The identified risk factors for membership in perceived barrier classes could potentially assist healthcare organizations and providers with targeting polices and interventions designed to improve access in their most vulnerable older adult populations, particularly those in rural areas, with functional disabilities, or in poor mental health.
Asthma and the Achievement Gap among Urban Minority Youth
ERIC Educational Resources Information Center
Basch, Charles E.
2011-01-01
Objectives: To outline the prevalence and disparities of asthma among school-aged urban minority youth, causal pathways through which poorly controlled asthma adversely affects academic achievement, and proven or promising approaches for schools to address these problems. Methods: Literature review. Results: Asthma is the most common chronic…
Factors Influencing the Trilingual Education in Leshan Ebian Yi Autonomous County
ERIC Educational Resources Information Center
Jian, Huang
2013-01-01
Language is symbolic of nationality culture (Claire, 2000). Trilingual education to the minority students is necessity for inheriting and developing their national culture. This survey studies the trilingual education in practice, analyses the existing trilingual education problems in Sichuan Leshan minority areas and indicates the prospect of the…
Diagnosing Inequalities in Schooling: Ogbu's Orientation and Wider Implications
ERIC Educational Resources Information Center
Kalekin-Fishman, Devorah
2004-01-01
Throughout his life, John Ogbu worked untiringly to diagnose the educational problems of minorities, with the goal of remedying them. Although his earliest works propose a comprehensive anthropological approach, his last works seem to settle into exhortations to parents and teachers to put more pressure on (involuntary) minority children whose…
Minority Recruitment in Teacher Education: Problems and Possibilities.
ERIC Educational Resources Information Center
Jacullo-Noto, Joann
1991-01-01
A model is presented that identifies effective strategies in recruiting minority candidates to fifth year teacher education programs. The model, the Teacher Opportunity Corps (TOC), is implemented at Teachers College, Columbia University (New York). The TOC, established in September 1987, will provide financial and academic support to 47 minority…
Achieving Administrative Diversity. New Directions for Community Colleges, Number 94.
ERIC Educational Resources Information Center
Bowen, Raymond C., Ed.; Muller, Gilbert H., Ed.
1996-01-01
Focusing on the challenge of expanding administrative opportunities for minorities, the 10 essays in this volume explore the problem of underrepresentation of minority administrators at community colleges and suggest strategies for improving diversity. The following articles are provided: (1) "Paradox and Promise: Leadership and the Neglected…
Model Minority Stereotype Reconsidered.
ERIC Educational Resources Information Center
Kobayashi, Futoshi
This paper explores the origin and historical background of the "model minority" stereotype. It includes evidence illustrating problems resulting from the artificial grouping of Asian Americans as one ethnic group and the stereotype's influence on young Asian Americans. In the 1960s, the U.S. media began to portray the model minority…
Aggression and Violence and the Achievement Gap among Urban Minority Youth
ERIC Educational Resources Information Center
Basch, Charles E.
2011-01-01
Objectives: To outline the prevalence and disparities of aggression and violence among school-aged urban minority youth, causal pathways through which aggression and violence adversely affects academic achievement, and proven or promising approaches for schools to address these problems. Methods: Literature review. Results: Recent national data…
Women and Minorities in Rural Community Colleges: Programs for Change.
ERIC Educational Resources Information Center
Gillett-Karam, Rosemary
1995-01-01
Reviews problems facing rural women and minorities, the special educational needs of these populations, and strains on resources of rural community colleges. Provides a context for improving educational services, suggesting that rural colleges emphasize collaboration and coalition building with constituencies in their service areas. (20 citations)…
A Bibliographic Guide to Small and Minority Business Management.
ERIC Educational Resources Information Center
Popovich, Charles J.
1979-01-01
Lists publications that help the small and/or minority entrepreneur cope with practical problems and provides access to background and government resources as well as relevant bibliographies and directories. Publications follow the steps one would take establishing a small business: starting, financing, managing, and other requirements (record…
Managing a Multi-ethnic and Multicultural City in Europe: Leicester.
ERIC Educational Resources Information Center
Winstone, Paul
1996-01-01
Profiles the English Midlands city of Leicester, an industrial center with a growing immigrant and minority population. Discusses the city government's response to problems concerning jobs, housing, and a racist backlash. The outlook is optimistic as the minority citizens assume new roles in the social and economic community. (MJP)
Differential Outcomes in Agency-Based Mental Health Care between Minority and Majority Youth
ERIC Educational Resources Information Center
Patterson, David A.; Dulmus, Catherine N.; Maguin, Eugene; Perkins, Jacob
2016-01-01
Background: Childhood mental health problems represent a significant public health concern globally. There is a converging discussion among researchers and practitioners alike that the research results of effectiveness studies are not fully generalizable and applicable to ethnoracial minority groups in real-world practice settings. Methods:…
Li, Pengsheng; Huang, Yeen; Guo, Lan; Wang, Wanxin; Xi, Chuhao; Lei, Yiling; Luo, Min; Pan, Siyuan; Deng, Xueqing; Zhang, Wei-hong; Lu, Ciyong
2017-01-01
Objectives Recent studies have suggested that sexual minorities are more likely to have poor sleep quality. This study aims to explore sleep quality among sexual minority adolescents and examines the association between sexual minority status and sleep quality. Design Cross-sectional survey. Setting A total of 506 high schools in seven Chinese provinces. Participants A total of 150 822 students in grades 7–12 completed the questionnaires, and 123 459 students who reported being aware of their sexual orientation were included in analyses. Main outcome measures The Pittsburgh Sleep Quality Index, sexual attraction and school bullying victimisation. Results Of the 123 459 students who were analysed, 5.00% self-reported as sexual minorities. Only 26.67% of sexual minority students slept 8 or more hours/day, which is less than their heterosexual peers (35.70%; χ2=130.04, P<0.001). Of the total sample, 22.41% of the students reported poor sleep quality, and this prevalence was significantly higher in sexual minority students than in heterosexual students (32.56% vs 21.87%; χ2=281.70, P<0.001). After controlling for social demographics, lifestyle and depressive symptoms, sexual minority students had higher odds of poor sleep quality (adjusted OR=1.41, 95% CI 1.31 to 1.51) than their heterosexual peers. The indirect effect of school bullying victimisation (standardised β estimate=0.007, 95% CI 0.006 to 0.009) was significant, indicating that school bullying victimisation partially mediated the association between sexual minority status and sleep quality. Conclusions Our study suggested that poor sleep quality was common in sexual minority adolescents, and more attention should be paid to sleep problems in this population. Conducting interventions to reduce school bullying behaviours is an important step to improving sleep quality in sexual minority adolescents. Further, studies are warranted that focus on the risk factors and mechanisms of and interventions for sleep problems in sexual minority adolescents. PMID:29282258
The Back Pay Remedy in Title VII Class Actions: Problems of Procedure
ERIC Educational Resources Information Center
Edwards, Charles A.
1974-01-01
The class action for back pay has developed as a significant factor in employment discrimination litigation under Title VII of the Civil Rights Act of 1964. Problems of demonstrating each class member's entitlement are examined and a bifurcated trial procedure is proposed as a method for handling such cases. (JT)
ERIC Educational Resources Information Center
Abdu, Rotem; Schwarz, Baruch; Mavrikis, Manolis
2015-01-01
We investigate teachers' practices in a whole-class context when they scaffold students' learning in situations where students use technologies that facilitate group learning to solve mathematical problems in small groups. We describe teachers' practices in order to evaluate their contribution to "Whole-Class Scaffolding" in the context…
Counting Strategies and Semantic Analysis as Applied to Class Inclusion. Report No. 61.
ERIC Educational Resources Information Center
Wilkinson, Alexander
This investigation examined strategic and semantic aspects of the answers given by preschool children to class inclusion problems. The Piagetian logical formalism for class inclusion was contrasted with a new, problem processing formalism in three experiments. In experiment 1, it was found that 48 nursery school subjects nearly always performed…
Calzo, Jerel P; Masyn, Katherine E; Corliss, Heather L; Scherer, Emily A; Field, Alison E; Austin, S Bryn
2015-09-01
This study investigates body image concerns and disordered weight- and shape-related behaviors across adolescence and young adulthood in males and how patterns vary by sexual orientation. Participants were 5,388 males from the U.S. national Growing Up Today Study. In 2001, 2003, and 2005 (spanning ages 15-20 years), participants reported sexual orientation, past-year desire for toned/defined muscles and concerns with weight and shape, and past-year binge eating, restrictive dieting, purging (vomiting or laxative use), and use of products to increase muscularity (e.g., creatine, steroids). Latent class analyses identified 2 patterns at ages 15-16 years and 3 patterns at 17-18 and 19-20 years: healthy (all ages; low body image concerns and weight- and shape-related behaviors; 54-74% of observations), muscle-concerned (ages 17-18 and 19-20; relatively high muscularity concern and product use; 18-21% of observations), and lean-concerned (all ages; relatively high weight and shape concern, dieting, and binge eating; 19-28% of observations). Latent transition analyses revealed that sexual minority males (i.e., mostly heterosexual, gay, and bisexual) were more likely than completely heterosexual males to be lean-concerned at ages 17-18 and 19-20 years and to transition to the lean-concerned class from the healthy class. There were no sexual orientation differences in odds of being muscle-concerned. Both heterosexual and sexual minority males are at risk for presenting body image concerns and weight- and shape-related behaviors that may have deleterious health consequences. Results suggest the need for screening for concerns and behaviors related to leanness and muscularity in early adolescence among all males, regardless of sexual orientation. (c) 2015 APA, all rights reserved).
Improving underrepresented minority medical student recruitment with health disparities curriculum.
Vela, Monica B; Kim, Karen E; Tang, Hui; Chin, Marshall H
2010-05-01
Diversity improves all students' academic experiences and their abilities to work with patients from differing backgrounds. Little is known about what makes minority students select one medical school over another. To measure the impact of the existence of a health disparities course in the medical school curriculum on recruitment of underrepresented minority (URM) college students to the University of Chicago Pritzker School of Medicine. All medical school applicants interviewed in academic years 2007 and 2008 at the University of Chicago Pritzker School of Medicine (PSOM) attended an orientation that detailed a required health care disparities curriculum introduced in 2006. Matriculants completed a precourse survey measuring the impact of the existence of the course on their decision to attend PSOM. URM was defined by the American Association of Medical Colleges as Black, American Indian/Alaskan Native, Native Hawaiian, Mexican American, and Mainland Puerto Rican. Precourse survey responses were 100% and 96% for entering classes of 2007 and 2008, respectively. Among those students reporting knowledge of the course (128/210, 61%), URM students (27/37, 73%) were more likely than non-URM students (38/91, 42%) to report that knowledge of the existence of the course influenced their decision to attend PSOM (p = 0.002). Analysis of qualitative responses revealed that students felt that the curriculum gave the school a reputation for placing importance on health disparities and social justice issues. URM student enrollment at PSOM, which had remained stable from years 2005 and 2006 at 12% and 11% of the total incoming classes, respectively, increased to 22% of the total class size in 2007 (p = 0.03) and 19 percent in 2008. The required health disparities course may have contributed to the increased enrollment of URM students at PSOM in 2007 and 2008.
Calzo, Jerel P.; Masyn, Katherine E.; Corliss, Heather L.; Scherer, Emily A.; Field, Alison E.; Austin, S. Bryn
2015-01-01
This study investigates body image concerns and disordered weight- and shape-related behaviors across adolescence and young adulthood in males and how patterns vary by sexual orientation. Participants were 5,388 males from the US national Growing Up Today Study. In 2001, 2003, and 2005 (spanning ages 15–20 years) participants reported sexual orientation, past-year desire for toned/defined muscles and concerns with weight and shape, and past-year binge eating, restrictive dieting, purging (vomiting or laxative use) and use of products to increase muscularity (e.g., creatine, steroids). Latent class analyses identified two patterns at ages 15–16 years and three patterns at 17–18 and 19–20 years: Healthy (all ages; low body image concerns and weight-and shape-related behaviors; 54%–74% of observations), Muscle-Concerned (ages 17–18 and 19– 20; relatively high muscularity concern and product use; 18%–21% of observations), and Lean-Concerned (all ages; relatively high weight and shape concern, dieting, and binge eating; 19%– 28% of observations). Latent transition analyses revealed that sexual minority males (i.e., mostly heterosexual, gay, and bisexual) were more likely than completely heterosexual males to be Lean-Concerned at ages 17–18 and 19–20 years and to transition to the Lean-Concerned class from the Healthy class. There were no sexual orientation differences in odds of being Muscle-Concerned. Both heterosexual and sexual minority males are at risk for presenting body image concerns and weight- and shape-related behaviors that may have deleterious health consequences. Results suggest the need for screening for concerns and behaviors related to leanness and muscularity in early adolescence among all males, regardless of sexual orientation. PMID:26098578
Burton, Chad M; Marshal, Michael P; Chisolm, Deena J; Sucato, Gina S; Friedman, Mark S
2013-03-01
Sexual minority youth (youth who are attracted to the same sex or endorse a gay/lesbian/bisexual identity) report significantly higher rates of depression and suicidality than heterosexual youth. The minority stress hypothesis contends that the stigma and discrimination experienced by sexual minority youth create a hostile social environment that can lead to chronic stress and mental health problems. The present study used longitudinal mediation models to directly test sexual minority-specific victimization as a potential explanatory mechanism of the mental health disparities of sexual minority youth. One hundred ninety-seven adolescents (14-19 years old; 70 % female; 29 % sexual minority) completed measures of sexual minority-specific victimization, depressive symptoms, and suicidality at two time points 6 months apart. Compared to heterosexual youth, sexual minority youth reported higher levels of sexual minority-specific victimization, depressive symptoms, and suicidality. Sexual minority-specific victimization significantly mediated the effect of sexual minority status on depressive symptoms and suicidality. The results support the minority stress hypothesis that targeted harassment and victimization are partly responsible for the higher levels of depressive symptoms and suicidality found in sexual minority youth. This research lends support to public policy initiatives that reduce bullying and hate crimes because reducing victimization can have a significant impact on the health and well-being of sexual minority youth.
Burton, Chad M.; Marshal, Michael P.; Chisolm, Deena J.; Sucato, Gina S.; Friedman, Mark S.
2013-01-01
Sexual minority youth (youth who are attracted to the same sex or endorse a gay/lesbian/bisexual identity) report significantly higher rates of depression and suicidality than heterosexual youth. The minority stress hypothesis contends that the stigma and discrimination experienced by sexual minority youth create a hostile social environment that can lead to chronic stress and mental health problems. The present study used longitudinal mediation models to directly test sexual minority-specific victimization as a potential explanatory mechanism of the mental health disparities of sexual minority youth. One hundred ninety seven adolescents (14–19 years old; 70% female; 29% sexual minority) completed measures of sexual minority-specific victimization, depressive symptoms, and suicidality at two time points six months apart. Compared to heterosexual youth, sexual minority youth reported higher levels of sexual minority-specific victimization, depressive symptoms, and suicidality. Sexual minority-specific victimization significantly mediated the effect of sexual minority status on depressive symptoms and suicidality. The results support the minority stress hypothesis that targeted harassment and victimization are partly responsible for the higher levels of depressive symptoms and suicidality found in sexual minority youth. This research lends support to public policy initiatives that reduce bullying and hate crimes because reducing victimization can have a significant impact on the health and well-being of sexual minority youth. PMID:23292751
Emmen, Rosanneke A G; Malda, Maike; Mesman, Judi; van Ijzendoorn, Marinus H; Prevoo, Mariëlle J L; Yeniad, Nihal
2013-12-01
According to the family stress model (Conger & Donnellan, 2007), low socioeconomic status (SES) predicts less-than-optimal parenting through family stress. Minority families generally come from lower SES backgrounds than majority families, and may experience additional stressors associated with their minority status, such as acculturation stress. The primary goal of this study was to test a minority family stress model with a general family stress pathway, as well as a pathway specific to ethnic minority families. The sample consisted of 107 Turkish-Dutch mothers and their 5- to 6-year-old children, and positive parenting was observed during a 7-min problem-solving task. In addition, mothers reported their daily hassles, psychological distress, and acculturation stress. The relation between SES and positive parenting was partially mediated by both general maternal psychological stress and maternal acculturation stress. Our study contributes to the argument that stressors specific to minority status should be considered in addition to more general demographic and family stressors in understanding parenting behavior in ethnic minority families.
A Finite Element Analysis of a Class of Problems in Elasto-Plasticity with Hidden Variables.
1985-09-01
RD-R761 642 A FINITE ELEMENT ANALYSIS OF A CLASS OF PROBLEMS IN 1/2 ELASTO-PLASTICITY MIlT (U) TEXAS INST FOR COMPUTATIONAL MECHANICS AUSTIN J T ODEN...end Subtitle) S. TYPE OF REPORT & PERIOD COVERED A FINITE ELEMENT ANALYSIS OF A CLASS OF PROBLEMS Final Report IN ELASTO-PLASTICITY WITH HIDDEN...aieeoc ede It neceeeary nd Identify by block number) ;"Elastoplasticity, finite deformations; non-convex analysis ; finite element methods, metal forming
Regularization and Approximation of a Class of Evolution Problems in Applied Mathematics
1991-01-01
8217 DT)IG AD-A242 223 FINAL REPORT Nov61991:ti -ll IN IImI 1OV1 Ml99 1 REGULARIZATION AND APPROXIMATION OF A-CLASS OF EVOLUTION -PROBLEMS IN APPLIED...The University of Texas at Austin Austin, TX 78712 91 10 30 050 FINAL REPORT "Regularization and Approximation of a Class of Evolution Problems in...micro-structured parabolic system. A mathematical analysis of the regularized equations-has been developed to support our approach. Supporting
Pérez-Palacios, Trinidad; Ruiz, Jorge; Dewettinck, Koen; Le, Thien Trung; Antequera, Teresa
2010-03-01
This paper aims to study the profile of phospholipid (PL) classes of Iberian ham throughout its processing and the changes it underwent due to the influence of the pre-cure freezing treatment. The general profile of each PL class did not vary during the ripening stage. Phosphatidylcholine (PC) showed the highest proportion, followed by phosphatidyletanolamine (PE) and phosphatidylserine (PS) and phosphatidylinositol (PI) being the minor PL. The four PL classes were highly hydrolysed during the salting stage and their degradation continued during the rest of the processing. Pre-cure freezing of Iberian ham influenced the levels of the four PL classes at the initial stage, all of them being higher in refrigerated (R) than in pre-cure frozen (F) hams. Moreover, the pattern of hydrolysis was not the same in these two groups. Copyright 2009 Elsevier Ltd. All rights reserved.
Hasking, Penelope Anne; Scheier, Lawrence M; Abdallah, Arbi Ben
2011-01-01
This study used latent class analysis to examine subpopulation membership based on self-reports of delinquent behaviors obtained from Australian youth. Three discrete identifiable classes were derived based on 51 indicators of physical violence, property damage, minor infractions, drug use, and social delinquency. One class of youth engaged in primarily rule breaking and norm violations including underage alcohol use, typical of this age period. A second class was more actively delinquent emphasizing drug use, trespassing, and various forms of disobedience. A third class of highly delinquent youth differed from their counterparts by endorsing drug use, thievery that involved stealing money, goods, and cars, property damage, gambling, precocious sexual experiences, involvement with pornographic materials, and fighting. Multinomial logistic regression predicting class membership indicated highly delinquent youth were more likely to be older males, use venting coping strategies, and be fun or novelty seeking compared with rule breakers. Findings are discussed in terms of refining current taxonomic arguments regarding the structure of delinquency and implications for prevention of early-stage antisocial behavior. © 2010 Wiley-Liss, Inc.
Incarceration in fragile families.
Wildeman, Christopher; Western, Bruce
2010-01-01
Since the mid-1970s the U.S. imprisonment rate has increased roughly fivefold. As Christopher Wildeman and Bruce Western explain, the effects of this sea change in the imprisonment rate--commonly called mass imprisonment or the prison boom--have been concentrated among those most likely to form fragile families: poor and minority men with little schooling. Imprisonment diminishes the earnings of adult men, compromises their health, reduces familial resources, and contributes to family breakup. It also adds to the deficits of poor children, thus ensuring that the effects of imprisonment on inequality are transferred intergenerationally. Perversely, incarceration has its most corrosive effects on families whose fathers were involved in neither domestic violence nor violent crime before being imprisoned. Because having a parent go to prison is now so common for poor, minority children and so negatively affects them, the authors argue that mass imprisonment may increase future racial and class inequality--and may even lead to more crime in the long-term, thereby undoing any benefits of the prison boom. U.S. crime policy has thus, in the name of public safety, produced more vulnerable families and reduced the life chances of their children. Wildeman and Western advocate several policy reforms, such as limiting prison time for drug offenders and for parolees who violate the technical conditions of their parole, reconsidering sentence enhancements for repeat offenders, and expanding supports for prisoners and ex-prisoners. But Wildeman and Western argue that criminal justice reform alone will not solve the problems of school failure, joblessness, untreated addiction, and mental illness that pave the way to prison. In fact, focusing solely on criminal justice reforms would repeat the mistakes the nation made during the prison boom: trying to solve deep social problems with criminal justice policies. Addressing those broad problems, they say, requires a greater social commitment to education, public health, and the employment opportunities of low-skilled men and women. The primary sources of order and stability--public safety in its wide sense--are the informal social controls of family and work. Thus, broad social policies hold the promise not only of improving the wellbeing of fragile families, but also, by strengthening families and providing jobs, of contributing to public safety.
Wilson, Sarah M; Gilmore, Amanda K; Rhew, Isaac C; Hodge, Kimberley A; Kaysen, Debra L
2016-10-01
Compared to sexual minority men and heterosexual women, sexual minority women report elevated alcohol use in young adulthood. Heavy alcohol use and alcohol use disorders disproportionately affect sexual minority women across the lifespan, yet there is limited research investigating reasons for such associations. The present study investigates longitudinal associations between minority stress and both alcohol use as well as self-rated drinking consequences. Participants (N=1057) were self-identified lesbian (40.5%) and bisexual (59.5%) women between the ages of 18 to 25 recruited from across the U.S. using online advertisements. Participants completed four annual surveys. Hurdle mixed effects models were used to assess associations between minority stress and typical weekly drinking and drinking consequences one year later. Minority stress was not significantly associated with subsequent typical drinking. However, minority stress was significantly associated with having any alcohol consequences as well as the count of alcohol consequences one year later after controlling for covariates. Consistent with extant literature, this study provides evidence for a prospective association between minority stress experienced by sexual minority women and drinking consequences. This study also provides support for the potential impact of efforts to reduce minority stress faced by sexual minority women. Published by Elsevier Ltd.
Problem-Based Learning in Foods and Nutrition Classes
ERIC Educational Resources Information Center
Smith, Bettye P.; Katz, Shana H.
2006-01-01
This article focuses on the use of problem-based learning in high school foods and nutrition classes. Problem-based learning, an instructional approach that promotes active learning, is the elaboration of knowledge that occurs through discussion, answering questions, peer teaching, and critiquing. Students are confronted with a simulated or real…
Addressing Society's Problems in a Global Studies Class.
ERIC Educational Resources Information Center
Pesce, Louis; And Others
1996-01-01
Describes the adaptation of the Future Problem-Solving Process (FPS) in a global studies class. The process applies state-of-the-art critical thinking and problem solving to unstable areas such as the Middle East and the former Soviet Union. Includes handouts directing the students through the process. (MJP)
Sterrett, Emma M.; Dymnicki, Allison B.; Henry, David; Byck, Gayle; Bolland, John; Mustanski, Brian
2014-01-01
Purpose African American youth, particularly those from low-income backgrounds, evidence high rates of negative outcomes associated with three problem behaviors, conduct problems, risky sexual behavior, and substance use. This study used a contextually-tailored version of Problem Behavior Theory (PBT) to examine predictors of the simultaneous development of problem behaviors in this specific cultural group. Methods Socio-contextual and individual variables representing four PBT predictor categories, controls protection, support protection, models risk, and vulnerability risk, were examined as predictors of co-occurring problem behaviors among economically disadvantaged African American adolescents (n = 949). Specifically, the likelihood of following three classes of multiple problem behavior trajectories spanning ages 12 to 18, labeled the “early experimenters,” “increasing high risk-takers,” and “adolescent-limited” classes, as opposed to a “normative” class was examined. Results Among other findings, controls protection in the form of a more stringent household curfew at age 12 was related to a lower likelihood of being in the “early experimenters” and “increasing high risk-takers” classes. Conversely, vulnerability risk manifested as stronger attitudes of violence inevitability was associated with a higher likelihood of being in the “early experimenters” class. However, the PBT category of support protection was not associated with risk trajectory class. More distal neighborhood-level manifestations of PBT categories also did not predict co-occurring behavior problems. Conclusion Guided by an incorporation of contextually-salient processes into PBT, prevention programs aiming to decrease co-occurring problem behaviors among low-income African American adolescents would do well to target both proximal systems and psychological constructs related to perceived security throughout adolescence. PMID:24755141
Sterrett, Emma M; Dymnicki, Allison B; Henry, David; Byck, Gayle R; Bolland, John; Mustanski, Brian
2014-09-01
African-American youth, particularly those from low-income backgrounds, evidence high rates of negative outcomes associated with three problem behaviors, conduct problems, risky sexual behavior, and substance use. This study used a contextually tailored version of problem behavior theory (PBT) to examine predictors of the simultaneous development of problem behaviors in this specific cultural group. Sociocontextual and individual variables representing four PBT predictor categories, controls protection, support protection, models risk, and vulnerability risk, were examined as predictors of co-occurring problem behaviors among economically disadvantaged African-American adolescents (n = 949). Specifically, the likelihood of following three classes of multiple problem behavior trajectories spanning ages 12-18, labeled the "early experimenters," "increasing high risk-takers," and "adolescent-limited" classes, as opposed to a "normative" class, was examined. Among other findings, controls protection in the form of a more stringent household curfew at age 12 was related to a lower likelihood of being in the "early experimenters" and "increasing high risk-takers" classes. Conversely, vulnerability risk manifested as stronger attitudes of violence inevitability was associated with a higher likelihood of being in the "early experimenters" class. However, the PBT category of support protection was not associated with risk trajectory class. More distal neighborhood-level manifestations of PBT categories also did not predict co-occurring behavior problems. Guided by an incorporation of contextually salient processes into PBT, prevention programs aiming to decrease co-occurring problem behaviors among low-income African-American adolescents would do well to target both proximal systems and psychological constructs related to perceived security throughout adolescence. Copyright © 2014 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.
2009-01-01
My experiences as a mentor of young investigators, along with conversations with a diverse pool of mentees, led me to question the ability of conventional research methods, problem formulation, and instruments to address the unique challenges of studying racial and ethnic minorities. Training of new investi-gators should prepare them to explore alternative research paradigms and atypical research strategies, such as community-based participatory research and Photovoice technique. Unconventional approaches to research may challenge common explanations for unmet needs, noncompliance with treatments, and poor service outcomes. Mentors may need to develop broader theoretical insights that will facilitate unconventional problem formulation. The teaching of scientific research and mentoring of young investigators who study minority populations should evolve along with the changing research environment. PMID:19246670
ERIC Educational Resources Information Center
Bushweller, Kevin
1996-01-01
Increasing numbers of parents are "dumping" parental responsibilities at the school-house door. However, a highly vocal and politically active minority of parents are demanding that schools relinquish those responsibilities. One helpful role the schools can play is to offer parent-education classes that provide specific tips on disciplining…
77 FR 68068 - Modification of Class E Airspace; Pullman, WA
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-15
... using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Pullman/Moscow Regional Airport. This action also makes a minor change to the legal description in... the FAA. No comments were received. The FAA's Aeronautical Products Office requested the legal...
ERIC Educational Resources Information Center
WAX, ROSALIE H.
THE AMERICAN INDIAN SUBCULTURE, AS REPRESENTED IN THIS STUDY BY THE SIOUX OF THE PINE RIDGE RESERVATION IN SOUTH DAKOTA, EXPERIENCES PROBLEMS WITH ITS YOUTHS' BECOMING HIGH SCHOOL DROPOUTS. MANY OF THE REASONS FOR THIS PROBLEM PARALLEL THE PROBLEMS OF OTHER AMERICAN MINORITIES, NAMELY, (1) DISSIMILARITY BETWEEN THE VALUES OF THE MINORITY…
Two Superfund environmental justice case studies
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hirschhorn, J.S.
1997-12-31
One of the environmental contributions of the Clinton Administration was Executive Order No. 12898 on Environmental Justice issued in 1994. Environmental justice has received considerable attention in EPA`s Superfund program. Many Superfund sites are located in or close by residential areas composed populated by ethnic minorities and people of the lowest economic status. Over the years, minority communities have often asserted that they have been treated more unfairly than predominantly white, middle class communities, with respect to the quality of environmental cleanups and the relocation of residents. The environmental justice claim is also that these communities have been intentionally placedmore » in harm`s way because of historical racial prejudice and injustice, meaning that either polluting industrial facilities were intentionally placed in minority neighborhoods or that residential areas for minority workers were built close to industrial facilities. This paper presents discussions of two Superfund sites where environmental justice issues have been very important, and it analyzes how specific parts of the Executive Order have been complied with in EPA`s Superfund program.« less
The Cost of Class Size Reduction: Advice for Policymakers. RAND Graduate School Dissertation.
ERIC Educational Resources Information Center
Reichardt, Robert E.
This dissertation provides information to state-level policymakers that will help them avoid two implementation problems seen in the past in California's class-size-reduction (CSR) reform. The first problem was that flat, per student reimbursement did not adequately cover costs in districts with larger pre-CSR class-sizes or smaller schools. The…
Holloway, Ian W.; Padilla, Mark B.; Willner, Lauren; Guilamo-Ramos, Vincent
2014-01-01
Emerging literature on minority stress among sexual minority populations has described the negative consequences that multiple minority statuses may exert on mental health and well-being. This literature has tended to focus on individuals whose self-identifications reflect sexual minority sexual categories, such as gay or bisexual, and has explored the intersection of these definitions with ethnic, racial, and class statuses. Few such studies have explored mental health among men who actively deny a sexual minority sexual identity label while engaging in same-sex sexual behaviors. The present study used ethnographic interview data from 20 non-gay-identified bisexually behaving Dominican and Puerto Rican men in New York City. Participants described discovery of same sex sexual behavior as a threat to their intimate relationships, community affiliation, and counter to expectations of Latino masculinity. Recounting a wide range of information management strategies used to avoid open disclosure about their sexual lives, participants experienced the potential consequences of disclosure as extreme and even life threatening. Men anticipated social isolation, depression, self-injury, and suicidality as possible outcomes from disclosing sexual behavior with other men to their female romantic partners. This analysis provides direction for future research on minority stress processes and mental health service delivery among Latino men who have sex with men and women. PMID:25367595
Holloway, Ian W; Padilla, Mark B; Willner, Lauren; Guilamo-Ramos, Vincent
2015-10-01
Emerging literature on minority stress among sexual minority populations has described the negative consequences that multiple minority statuses may exert on mental health and well-being. This literature has tended to focus on individuals whose self-identifications reflect sexual minority sexual categories, such as gay or bisexual, and has explored the intersection of these definitions with ethnic, racial, and class statuses. Few such studies have explored mental health among men who actively deny a sexual minority sexual identity label while engaging in same-sex sexual behaviors. The present study used ethnographic interview data from 20 non-gay-identified bisexually behaving Dominican and Puerto Rican men in New York City. Participants described discovery of same sex sexual behavior as a threat to their intimate relationships, community affiliation, and counter to expectations of Latino masculinity. Recounting a wide range of information management strategies used to avoid open disclosure about their sexual lives, participants experienced the potential consequences of disclosure as extreme and even life threatening. Men anticipated social isolation, depression, self-injury, and suicidality as possible outcomes from disclosing sexual behavior with other men to their female romantic partners. This analysis provides direction for future research on minority stress processes and mental health service delivery among Latino men who have sex with men and women.
Women and minorities science bill becomes law
NASA Astrophysics Data System (ADS)
Showstack, Randy
U.S. President Bill Clinton has signed into law a measure to establish a commission to identify and address problems associated with the recruitment, retention, and advancement of women, minorities, and persons with disabilities in science and engineering fields."Today, we have taken a positive step forward to strengthen and expand our high-tech workforce by ensuring that women, minorities, and persons with disabilities have the skills necessary to compete in the Information Age," said U.S. Rep. Connie Morella (R.-Md.), who introduced the measure.
New approaches to divorce with children: A problem of public health.
Vezzetti, Vittorio Carlo
2016-07-01
This broad review elaborates on the most up-to-date knowledge on biochemical and psychobiological aspects of parental loss and other childhood adversities during divorce involving minor children. So far, divorce involving minor children was unfortunately considered by authorities only as a purely juridical problem, and this approach has often allowed a completely different approach according to the Courts. Now, scientific research, also making use of animal models, is demonstrating the biological basis of the problem and the indisputable consequences on the well-being and health of children. The innovative conclusion of this review is that this argument (because of its frequency and gravity) is primarily a question of public health and that it is necessary to further harmonize practices in this area.
ERIC Educational Resources Information Center
Vice President's Task Force on Youth Employment, Washington, DC.
This series of nine reports reviews available information on the special needs and concentrated problems of youth employment. (It constitutes the second of a three-volume compendium; other volumes examine causes and dimensions of youth employment problems and analyze program experience--see note.) The effects of discrimination on minority youth…
Managing Problems Before Problems Manage You.
Grigsby, Jim
2015-01-01
Every day we face problems, both personal and professional, and our initial reaction determines how well we solve those problems. Whether a problem is minor or major, short-term or lingering, there are techniques we can employ to help manage the problem and the problem-solving process. This article, based on my book Don't Tick Off The Gators! Managing Problems Before Problems Manage You, presents 12 different concepts for managing problems, not "cookie cutter" solutions, but different ideas that you can apply as they fit your circumstances.
Regidor, E
2001-01-01
Two of the most important theory-based social class classifications are that of the neo-Weberian Goldthorpe and that of the neo-Marxist Wright. The social class classification proposal of the SES Working Group employed the Goldthorpe schema as a reference due to the empirical and mainly pragmatic aspects involved. In this article, these aspects are discussed and it is also discussed the problem of the validation of the measurements of social class and the problem of the use of the social class as an independent variable.
Interim report : a non-overlay cathodic protection system.
DOT National Transportation Integrated Search
1983-01-01
This interim report describes Virginia's experience in installing its first cathodic protection system for a bridge deck. The installation was completed with practically no problems. Very minor problems have been encountered with the rectifier/contro...
Coverage and prior authorization of psychotropic drugs under Medicare Part D.
Huskamp, Haiden A; Stevenson, David G; Donohue, Julie M; Newhouse, Joseph P; Keating, Nancy L
2007-03-01
This study examined formulary coverage and use of utilization management tools for three classes of psychotropic medications (antidepressants, antipsychotics, and anticonvulsants) among Medicare Part D prescription drug plans serving individuals dually eligible for the Medicare and Medicaid programs. Plans must cover "all or substantially all" molecules (distinct drugs) in these classes. Plans serving "dual eligibles" generally covered at least one formulation of all molecules in the three classes. However, certain product formulations were not covered by a number of plans, and use of prior authorization was common for a minority of plans. The effect of Part D will depend on the restrictiveness of the prior authorization and appeals processes, which is currently unknown.
NASA Technical Reports Server (NTRS)
Otterson, D. A.; Seng, G. T.
1985-01-01
An high performance liquid chromatography (HPLC) method to estimate four aromatic classes in middistillate fuels is presented. Average refractive indices are used in a correlation to obtain the concentrations of each of the aromatic classes from HPLC data. The aromatic class concentrations can be obtained in about 15 min when the concentration of the aromatic group is known. Seven fuels with a wide range of compositions were used to test the method. Relative errors in the concentration of the two major aromatic classes were not over 10 percent. Absolute errors of the minor classes were all less than 0.3 percent. The data show that errors in group-type analyses using sulfuric acid derived standards are greater for fuels containing high concentrations of polycyclic aromatics. Corrections are based on the change in refractive index of the aromatic fraction which can occur when sulfuric acid and the fuel react. These corrections improved both the precision and the accuracy of the group-type results.
NASA Astrophysics Data System (ADS)
Roverso, Davide
2003-08-01
Many-class learning is the problem of training a classifier to discriminate among a large number of target classes. Together with the problem of dealing with high-dimensional patterns (i.e. a high-dimensional input space), the many class problem (i.e. a high-dimensional output space) is a major obstacle to be faced when scaling-up classifier systems and algorithms from small pilot applications to large full-scale applications. The Autonomous Recursive Task Decomposition (ARTD) algorithm is here proposed as a solution to the problem of many-class learning. Example applications of ARTD to neural classifier training are also presented. In these examples, improvements in training time are shown to range from 4-fold to more than 30-fold in pattern classification tasks of both static and dynamic character.
Mother's social class and perinatal problems in a low-problem area.
Hemminki, E; Malin, M; Rahkonen, O
1990-12-01
This study reports the variation in perinatal problems related to social class in one area in Finland. Data on length of gestation, birthweight, one-minute Apgar score, and need for special care in relation to social class were obtained from a large clinical trial (n = 2912) on iron prophylaxis during pregnancy. Social class was determined from the woman's own occupation and education. Occupation was obtained from the women themselves and classified as upper white collar, lower white collar I, lower white collar II, and workers; entrepreneurs, students and women with no information were excluded. Education was obtained by record linkage to the national education register, and all women were classified by the years normally required to attain a certain level: greater than or equal to 13, 12, 10-11, and less than or equal to 9 years of education. Adjusted for age and parity, a week U-shaped curve was found for gestation length and birthweight, best results being found for the women in the second highest social class. The lower the social class, the more infants with poor Apgar scores. As potential intervening variables we studied marital status, pre-pregnancy weight, smoking, and haematocrit in the 28th week of pregnancy. Their inclusion in multivariate analyses influenced only slightly the differences in perinatal problems between the groups. Our results suggest that in Finland there are still differences in perinatal problems between social classes, but that the relationship is not always linear.
Efficient algorithms for a class of partitioning problems
NASA Technical Reports Server (NTRS)
Iqbal, M. Ashraf; Bokhari, Shahid H.
1990-01-01
The problem of optimally partitioning the modules of chain- or tree-like tasks over chain-structured or host-satellite multiple computer systems is addressed. This important class of problems includes many signal processing and industrial control applications. Prior research has resulted in a succession of faster exact and approximate algorithms for these problems. Polynomial exact and approximate algorithms are described for this class that are better than any of the previously reported algorithms. The approach is based on a preprocessing step that condenses the given chain or tree structured task into a monotonic chain or tree. The partitioning of this monotonic take can then be carried out using fast search techniques.
Vocational Education for Immigrant and Minority Youth. Information Series No. 257.
ERIC Educational Resources Information Center
Reubens, Peggy
Efforts of immigrant and minority youth to make the school-to-work transition successfully are adversely affected by social, psychological, cultural, familial, and individual factors. Complicating their struggle to attain a sense of competence and personal identity, which is common to all youth, are "outsider status," language problems,…
Mentoring Women and Minorities in Higher Education.
ERIC Educational Resources Information Center
Cordova, Fred; And Others
Some relevant issues concerning the mentoring of women and minorities in the realm of higher education are addressed, primarily focusing on the differences and problems that exist in assisting these two groups of professionals in achieving their career goals. The importance of mentoring and methods that can be used by a mentor in assisting the…
Minority Language Standardisation and the Role of Users
ERIC Educational Resources Information Center
Lane, Pia
2015-01-01
Developing a standard for a minority language is not a neutral process; this has consequences for the status of the language and how the language users relate to the new standard. A potential inherent problem with standardisation is whether the language users themselves will accept and identify with the standard. When standardising minority…
Minority Outreach: Research and Education. Making Investments For a Healthy Tomorrow.
ERIC Educational Resources Information Center
National Heart, Lung, and Blood Inst. (DHHS/NIH), Bethesda, MD.
This brochure highlights several of the National Heart, Lung, and Blood Institute's (NHLBI) minority outreach programs. NHLBI's extensive research programs address some of the most significant health problems of Blacks, Hispanics, Asians, Pacific Islanders, and American Indians in the areas of heart and vascular diseases, lung diseases, and blood…
The Mediators of Minority Ethnic Underperformance in Final Medical School Examinations
ERIC Educational Resources Information Center
Woolf, Katherine; McManus, I. Chris; Potts, Henry W. W.; Dacre, Jane
2013-01-01
Background: UK-trained medical students and doctors from minority ethnic groups underperform academically. It is unclear why this problem exists, which makes it dif?cult to know how to address it. Aim: To investigate whether demographic and psychological factors mediate the relationship between ethnicity and ?nal examination scores. Sample: Two…
Promoting Cultural Competence in Counseling Asian American Children and Adolescents
ERIC Educational Resources Information Center
Zhou, Zheng; Siu, Candice R.; Xin, Tao
2009-01-01
Asian Americans are commonly perceived as the diligent and high-achieving "model minority." This positive stereotype has negative consequences for this ethnic minority group because it trivializes their social and mental health problems. This image of success has made many overlook the true nature of the struggles many Asian American families have…
Promoting Student Academic Achievement through Faculty Development about Inclusive Teaching
ERIC Educational Resources Information Center
Schmid, Megan E.; Gillian-Daniel, Donald L.; Kraemer, Sara; Kueppers, Mark
2016-01-01
The achievement gap, disparities in the academic achievement of marginalized students (e.g., underrepresented minority, first generation in their family to attend college, and low socio-economic status undergraduate students) relative to their non-minority peers is a pervasive problem in higher education. It impacts student access to the major and…
Teen Pregnancy and the Achievement Gap among Urban Minority Youth
ERIC Educational Resources Information Center
Basch, Charles E.
2011-01-01
Objectives: To outline the prevalence and disparities of teen pregnancy among school-aged urban minority youth, causal pathways through which nonmarital teen births adversely affects academic achievement, and proven or promising approaches for schools to address this problem. Methods: Literature review. Results: In 2006, the birth rate among 15-…
The Relationship between Teacher Efficacy and Professional Development
ERIC Educational Resources Information Center
Onyia, Maria Rapheal
2012-01-01
The achievement gap for racial minority students is one of the most researched educational topics, yet long-term solutions for addressing this problem are elusive. Although there have been some gains for minority students overall, significant gaps still exist in reading and comprehension for a Title I inner-city school on the west coast. This…
ERIC Educational Resources Information Center
Pumphrey, Karyn Christine
2017-01-01
Science, Technology, Engineering and Mathematics (STEM) professionals are responsible for the development of new technologies and breaking scientific discoveries. However, in the United States, racial minorities and females are vastly underrepresented in STEM professions. This problem is multiplied for individuals falling into both categories.…
Youth Tobacco Sales-to-Minors and Possession-Use-Purchase Laws: A Public Health Controversy
ERIC Educational Resources Information Center
Jason, Leonard A.; Pokorny, Steven B.; Muldowney, Kathleen; Velez, Melissa
2005-01-01
Tobacco use among youth remains one of our nation's most significant public health problems, and yet available evidence from prevention and cessation person-centered approaches has been mixed. Given these disappointing outcomes, some have recommended more public health approaches, and these include tobacco sales-to-minors and…
Counseling Racial and Ethnic Minorities in the United States.
ERIC Educational Resources Information Center
Vontress, Clemmont
The purpose of this paper is to discuss in brief six racial and ethnic minority groups in the United States, in order to demonstrate how selected cultural variables may intrude in the counseling relationship. American Indians present such problems as language difficulties, taciturnity, and suspiciousness. In working with Americans of African…
Methods to improve traffic flow and noise exposure estimation on minor roads.
Morley, David W; Gulliver, John
2016-09-01
Address-level estimates of exposure to road traffic noise for epidemiological studies are dependent on obtaining data on annual average daily traffic (AADT) flows that is both accurate and with good geographical coverage. National agencies often have reliable traffic count data for major roads, but for residential areas served by minor roads, especially at national scale, such information is often not available or incomplete. Here we present a method to predict AADT at the national scale for minor roads, using a routing algorithm within a geographical information system (GIS) to rank roads by importance based on simulated journeys through the road network. From a training set of known minor road AADT, routing importance is used to predict AADT on all UK minor roads in a regression model along with the road class, urban or rural location and AADT on the nearest major road. Validation with both independent traffic counts and noise measurements show that this method gives a considerable improvement in noise prediction capability when compared to models that do not give adequate consideration to minor road variability (Spearman's rho. increases from 0.46 to 0.72). This has significance for epidemiological cohort studies attempting to link noise exposure to adverse health outcomes. Copyright © 2016 Elsevier Ltd. All rights reserved.
ERIC Educational Resources Information Center
Hay, M. Cameron
2017-01-01
Undergraduate student learning focuses on the development of disciplinary strength in majors and minors so that students gain depth in particular fields, foster individual expertise, and learn problem solving from disciplinary perspectives. However, the complexities of real-world problems do not respect disciplinary boundaries. Complex problems…
Predictors of depressive symptoms among resettled unaccompanied refugee minors.
Seglem, Karoline B; Oppedal, Brit; Raeder, Sabine
2011-10-01
This study investigated the level and predictors of depressive symptoms among unaccompanied refugee minors after resettlement in Norway. Participants (N = 414) were resettled in 26 municipalities from all regions of the country. The average length of resettlement time was 3.4 years. They originated from 33 different countries, mainly Afghanistan (n = 116), Somalia (n = 74), Sri Lanka (n = 41) and Iraq (n = 43). Participants completed a self-report questionnaire administered in groups. Findings show that unaccompanied minors are a high-risk group for mental health problems also after resettlement in a new country. A multilevel model predicting depressive symptoms from individual and contextual demographic factors indicated that, controlling for post-traumatic stress, females had more symptoms than males and Somalis had fewer symptoms than participants from other countries. Variation in symptom levels as a function of gender and ethnic background indicates that some groups may have inherent protective or vulnerability factors that need to be further studied to understand differences in psychosocial adaptation among unaccompanied minors. Further, findings imply that researchers, policy makers and mental health care workers need to expand their attention beyond the first phases of arrival of unaccompanied asylum seeking and refugee minors to the continuing experience of mental health problems after resettlement. © 2011 The Authors. Scandinavian Journal of Psychology © 2011 The Scandinavian Psychological Associations.
Stolley, Melinda R; Fitzgibbon, Marian L; Dyer, Alan; Van Horn, Linda; KauferChristoffel, Katherine; Schiffer, Linda
2003-03-01
The prevalence of obesity in the United States is a significant public health problem. Many obesity-related risk factors are more prevalent in minority populations. Given the recalcitrant nature of weight loss interventions for adults, prevention of overweight and obesity has become a high priority. The present study reports baseline data from an obesity prevention intervention developed for minority preschool children. Hip-Hop to Health Jr. is a 5-year randomized controlled intervention that targets 3- to 5-year-old minority children enrolled in 24 Head Start programs. Our primary aim is to test the effect of the intervention on change in body mass index. Data were collected on sociodemographic, anthropometric, behavioral, and cognitive variables for the children and parents at baseline. Participants included 416 black children, 337 black parents, 362 Latino children, and 309 Latino parents. Using body mass index for age and sex > or = the 95th percentile as the definition of overweight, 15% of the black children and 28% of the Latino children were overweight. More than 75% of the parents were either overweight or obese. The development of interventions to effectively prevent or control obesity early in life is crucial. These data highlight the escalating problem of weight control in minority populations.
ERIC Educational Resources Information Center
Hayes, Dianne
2012-01-01
Amid numerous efforts to increase college-going and completion rates among minority students, for-profit institutions stand out as a leader in that regard. Class flexibility for working and non-traditional students, online courses, and corporate partnerships to reimburse employees are all contributing factors to their appeal. However, along with…
78 FR 1750 - Establishment of Class E Airspace; Princeton, KY
Federal Register 2010, 2011, 2012, 2013, 2014
2013-01-09
... the safety and airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System. This action also makes a minor adjustment to the geographic coordinates of the airport... action qualifies for categorical exclusion under the National Environmental Policy Act in accordance with...
Socioeconomic Variation, Number Competence, and Mathematics Learning Difficulties in Young Children
ERIC Educational Resources Information Center
Jordan, Nancy C.; Levine, Susan C.
2009-01-01
As a group, children from disadvantaged, low-income families perform substantially worse in mathematics than their counterparts from higher-income families. Minority children are disproportionately represented in low-income populations, resulting in significant racial and social-class disparities in mathematics learning linked to diminished…
77 FR 55688 - Amendment of Class E Airspace; Boise, ID
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-11
... needed as a reference. The Donnelly Tactical Air Navigation System (TACAN) has been decommissioned and controlled airspace reconfigured. This action also makes a minor change to the legal description in reference.... No comments were received. The FAA's Aeronautical Products Office requested the legal description for...
Preparing Preservice Educators to Teach Critical, Place-Based Literacies
ERIC Educational Resources Information Center
Mendoza, Anna
2018-01-01
Secondary education means helping students develop a diverse repertoire of literacy skills, but the focus has been on disciplinary and digital literacies practiced by geographically distributed communities (an international, middle class curriculum) rather than on practices associated with orality, the trades, and minority, immigrant, and…
Stereotypes, Tolerance, and the Classroom.
ERIC Educational Resources Information Center
Brehm, Christine J.
This paper suggests that because higher education is instrumental in increasing awareness and sensitivity toward minority images and can influence levels of tolerance that students display and convey to public actors; therefore, many universities offer classes that challenge students to look beyond stereotypes and to appreciate the diversity of…
ERIC Educational Resources Information Center
Moody, Charles D.; Linn, Eleanor
1986-01-01
The role of mathematics as a critical determiner of employment is noted, and the "significant absence of women and minority students in mathematics classes" is given attention. The need to gain competence in mathematics skills and confidence in mathematical abilities calls for programs to increase student participation, motivation, and…
Development of a Psychology Department Diversity Newsletter.
ERIC Educational Resources Information Center
Gibson, Pamela Reed; Rey, Amy M.
1999-01-01
Describes a newsletter written by and disseminated directly to psychology students at James Madison University that focuses on multicultural issues, such as student research on diverse topics, political updates regarding minority issues, and summaries of multicultural activities in psychology classes. Explains that student reactions to the various…
Student-Created Homework Problems Based on YouTube Videos
ERIC Educational Resources Information Center
Liberatore, Matthew W.; Marr, David W. M.; Herring, Andrew M.; Way, J. Douglas
2013-01-01
Inspired by YouTube videos, students created homework problems as part of a class project. The project has been successful at different parts of the semester and demonstrated learning of course concepts. These new problems were implemented both in class and as part of homework assignments without significant changes. Examples from a material and…
Effect of a "Look-Ahead" Problem on Undergraduate Engineering Students' Concept Comprehension
ERIC Educational Resources Information Center
Goodman, Kevin; Davis, Julian; McDonald, Thomas
2016-01-01
In an effort to motivate undergraduate engineering students to prepare for class by reviewing material before lectures, a "Look-Ahead" problem was utilized. Students from two undergraduate engineering courses; Statics and Electronic Circuits, were assigned problems from course material that had not yet been covered in class. These…
Darney, Dana; Reinke, Wendy M; Herman, Keith C; Stormont, Melissa; Ialongo, Nicholas S
2013-02-01
The aim of the current study was to evaluate the eleven year longitudinal association between students identified in first grade as having academic and behavior problems and distal outcomes in twelfth grade. The study extends prior research that identified latent classes of academic and behavior problems in a longitudinal community sample of 678 predominately African American first-grade students. The type and number of classes identified in first grade differed by gender, but results indicated that students within the classes of behavior and academic problems had long-term negative outcomes in the twelfth grade. The class with co-occurring academic and behavior problems in first grade had the greatest risk for negative distal outcomes for both boys and girls including higher likelihood of special education placement, mental health service use, poor academic achievement, and school dropout. Implications for prevention, early intervention, and current practices in schools are discussed. Published by Elsevier Ltd.
Proffit, William R; Turvey, Timothy A; Phillips, Ceib
2007-04-30
A hierarchy of stability exists among the types of surgical movements that are possible with orthognathic surgery. This report updates the hierarchy, focusing on comparison of the stability of procedures when rigid fixation is used. Two procedures not previously placed in the hierarchy now are included: correction of asymmetry is stable with rigid fixation and repositioning of the chin also is very stable. During the first post-surgical year, surgical movements in patients treated for Class II/long face problems tend to be more stable than those treated for Class III problems. Clinically relevant changes (more than 2 mm) occur in a surprisingly large percentage of orthognathic surgery patients from one to five years post-treatment, after surgical healing is complete. During the first post-surgical year, patients treated for Class II/long face problems are more stable than those treated for Class III problems; from one to five years post-treatment, some patients in both groups experience skeletal change, but the Class III patients then are more stable than the Class II/long face patients. Fewer patients exhibit long-term changes in the dental occlusion than skeletal changes, because the dentition usually adapts to the skeletal change.
The effects of a foot and toenail care protocol for older adults.
Chan, Helen Y L; Lee, Diana T F; Leung, Edward M F; Man, Chui-Wah; Lai, Kwok-Man; Leung, Man-Wai; Wong, Irene K Y
2012-01-01
Foot and toenail problems are prevalent among older adults. The importance of foot care is often overlooked, however, because the associated problems are often considered to be minor. These "minor" problems often result in unnecessary distress and complications for older adults. This study aims to develop and examine the effects of a foot and toenail care protocol on promoting foot health in older adults. It includes a thorough assessment of foot health, footwear conditions, and specific self-care ability. On the basis of the assessment, an individualized nursing care plan was devised. It has been found that the implementation of the care protocol can help to increase the awareness of nurses and older adults with regard to foot health and that some foot and toenail problems can be identified earlier and better managed. Copyright © 2012 Mosby, Inc. All rights reserved.
Bry, Laura Jane; Mustanski, Brian; Garofalo, Robert; Burns, Michelle Nicole
2017-09-13
Sexual minority and transgender status is associated with mental health disparities, which have been empirically and theoretically linked to stressors related to social stigma. Despite exposure to these unique stressors, many sexual minority and transgender individuals will not experience mental health disorders in their lifetime. Little is known about the specific processes that sexual minority and transgender youth use to maintain their wellbeing in the presence of discrimination and rejection. Semistructured interviews were conducted with 10 sexual minority males and transgender females aged 18-22 years, who currently met criteria for an operationalized definition of resilience to depression and anxiety. Data were analyzed qualitatively, yielding information related to a wide variety of problem-solving, support-seeking, and accommodative coping strategies employed by youth in the face of social stigma. Results are discussed in light of their clinical implications.
Postrape care services to minors in Kenya: are the services healing or hurting survivors?
Wangamati, Cynthia Khamala; Combs Thorsen, Viva; Gele, Abdi Ali; Sundby, Johanne
2016-01-01
Child sexual abuse is a global problem and a growing concern in Sub-Saharan Africa. It constitutes a profound violation of human rights. To address this problem, Kenya has established the Sexual Offences Act. In addition, Kenya has developed national guidelines on the management of sexual violence to grant minors access to health care. However, little is known about the experiences of sexually abused minors when they interact with the health and legal system. Accordingly, this study uses a triangulation of methods in the follow-up of two adolescent girls. Health records were reviewed, interactions between the girls and service providers were observed, in-depth interviews were conducted with the girls, and informal discussions were held with guardians and service providers. Findings indicated that the minors' rights to quality health care and protection were being violated. Protocols on postrape care delivery were unavailable. Furthermore, the health facility was ill equipped and poorly stocked. Health providers showed little regard for informed assent, confidentiality, and privacy while offering postrape care. Similarly, in the justice system, processing was met with delays and unresponsive law enforcement. Health providers and police officers are in grave need of training in sexual and gender-based violence, its consequences, comprehensive postrape care, and sexual and reproductive health rights to ensure the protection of minors' rights. Health administrators should ensure that facilities are equipped with skilled health providers, medical supplies, and equipment. Additionally, policies on the protection and care of sexually abused minors in Kenya require amendment.
Barr, Donald A; Gonzalez, Maria Elena; Wanat, Stanley F
2008-05-01
To determine the causes among underrepresented racial and ethnic minority groups (URM) of a decline in interest during the undergraduate years in pursuing a career in medicine. From fall 2002 through 2007, the authors conducted a longitudinal study of 362 incoming Stanford freshmen (23% URM) who indicated on a freshman survey that they hoped to become physicians. Using a 10-point scale of interest, the authors measured the change in students' levels of interest in continuing premedical studies between the beginning of freshman year and the end of sophomore year. Follow-up interviews were conducted with 68 participants, approximately half of whom had experienced decreases in interest in continuing as premeds, and half of whom who had experienced increases in interest. URM students showed a larger decline in interest than did non-URM students; women showed a larger decline than did men, independent of race or ethnicity. The authors found no association between scholastic ability as measured by SAT scores and changes in level of interest. The principal reason given by students for their loss of interest in continuing as premeds was a negative experience in one or more chemistry courses. Students also identified problems in the university's undergraduate advising system as a contributor. Largely because of negative experiences with chemistry classes, URM students and women show a disproportionate decline in interest in continuing in premedical studies, with the result that fewer apply to medical school.
Sánchez, Francisco J.; Liu, William Ming; Leathers, Leslie; Goins, Joyce; Vilain, Eric
2011-01-01
We used Consensual Qualitative Research Methodology to analyze responses from 14 African American men (MdnAge = 25 years-old) in graduate school at a predominantly-White university in the Midwestern region of the United Sates regarding how they acquired awareness of their social-class status; how social class was related to their sense of masculinity; how social class was related to race and skin tone; and the role that education and a romantic partner could play in upward mobility. School peers were the main source for their early awareness of social class. Many believed that discrimination maintains social class stratification that disadvantages racial minorities and that one's race will always trump any personal characteristics—including having light-complected skin and an advanced degree. Finally many overcame several obstacles during their educational career, and most believed that a romantic relationship with a woman from a privileged background could facilitate upward mobility. Psychological scientists and practitioners are encouraged to consider the role that social class plays when examining men's well-being. PMID:22058659
Assessment of acrylamide toxicity using a battery of standardised bioassays.
Zovko, Mira; Vidaković-Cifrek, Željka; Cvetković, Želimira; Bošnir, Jasna; Šikić, Sandra
2015-12-01
Acrylamide is a monomer widely used as an intermediate in the production of organic chemicals, e.g. polyacrylamides (PAMs). Since PAMs are low cost chemicals with applications in various industries and waste- and drinking water treatment, a certain amount of non-polymerised acrylamide is expected to end up in waterways. PAMs are non-toxic but acrylamide induces neurotoxic effects in humans and genotoxic, reproductive, and carcinogenic effects in laboratory animals. In order to evaluate the effect of acrylamide on freshwater organisms, bioassays were conducted on four species: algae Desmodesmus subspicatus and Pseudokirchneriella subcapitata, duckweed Lemna minor and water flea Daphnia magna according to ISO (International Organization for Standardisation) standardised methods. This approach ensures the evaluation of acrylamide toxicity on organisms with different levels of organisation and the comparability of results, and it examines the value of using a battery of low-cost standardised bioassays in the monitoring of pollution and contamination of aquatic ecosystems. These results showed that EC50 values were lower for Desmodesmus subspicatus and Pseudokirchneriella subcapitata than for Daphnia magna and Lemna minor, which suggests an increased sensitivity of algae to acrylamide. According to the toxic unit approach, the values estimated by the Lemna minor and Daphnia magna bioassays, classify acrylamide as slightly toxic (TU=0-1; Class 1). The results obtained from algal bioassays (Desmodesmus subspicatus and Pseudokirchneriella subcapitata) revealed the toxic effect of acrylamide (TU=1-10; Class 2) on these organisms.
NASA Astrophysics Data System (ADS)
Mulkey, Lynn M.; Ellis, Ronald S.
It is common knowledge that scientists are those persons who have the unique attributes required to perform in the role, but contrary to what is widely believed, scientists might also be those who have had access to resources of which other members of the population have been deprived. This study investigates the effectiveness of interventions designed to mediate the negative influence of ascription (race and ethnicity) on the scientific talent pool (students having interest and ability in science). Minorities refers to participants representing the major ethnic and racial groups in the New York City school system: Blacks and Hispanics. Cross-tabulations showed that urban underachieving public high school students take significantly more mathematics and science classes, more frequently graduate from high school and more often enroll in college as compared with students of the same population, who were not exposed to the program. These findings on the effectiveness of tutoring, career counseling, exposure to industrial and academic research sites and to scientist role models, and after-school and weekend classes in mathematics and science, reinforce the observations of Thomas (1986) of the importance of prerequisites for increasing participation of minorities in the natural and technical sciences and mathematics. They extend knowledge of factors which lessen the effects of ascription on educational attainment, and which promote meritocratic conditions for achieving a scientific occupation.
Regulating trust in pediatric clinical trials.
Pinxten, Wim; Nys, Herman; Dierickx, Kris
2008-12-01
The participation of minors in clinical trials is essential to provide safe and effective medical care to children. Because few drugs have been tested in children, pediatricians are forced to prescribe medications off-label with uncertain efficacy and safety. In this article, we analyze how the enrollment of minors in clinical trials is negotiated within relationships of mutual trust between clinicians, minors, and their parents. After a brief description of the problems associated with involving minors in clinical research, we consider how existing "relationships of trust" can be used as a place where the concerns of research subjects can be more fully discussed and addressed. Building on the tacit recognition of trust found in The European Clinical Trials Directive we make policy recommendations that allow for clearer, more ethically informed guidelines for enrolling minors in clinical research.
A minority perspective in the diagnosis of child language disorders.
Seymour, H N; Bland, L
1991-01-01
The effective diagnosis and treatment of persons from diverse minority language backgrounds has become an important issue in the field of speech and language pathology. Yet, many SLPs have had little or no formal training in minority language, there is a paucity of normative data on language acquisition in minority groups, and there are few standardized speech and language tests appropriate for these groups. We described a diagnostic process that addresses these problems. The diagnostic protocol we have proposed for a child from a Black English-speaking background characterizes many of the major issues in treating minority children. In summary, we proposed four assessment strategies: gathering referral source data; making direct observations; using standardized tests of non-speech and language behavior (cognition, perception, motor, etc.); and eliciting language samples and probes.
Kaltiala-Heino, Riittakerttu; Sumia, Maria; Työläjärvi, Marja; Lindberg, Nina
2015-01-01
Increasing numbers of adolescents present in adolescent gender identity services, desiring sex reassignment (SR). The aim of this study is to describe the adolescent applicants for legal and medical sex reassignment during the first two years of adolescent gender identity team in Finland, in terms of sociodemographic, psychiatric and gender identity related factors and adolescent development. Structured quantitative retrospective chart review and qualitative analysis of case files of all adolescent SR applicants who entered the assessment by the end of 2013. The number of referrals exceeded expectations in light of epidemiological knowledge. Natal girls were markedly overrepresented among applicants. Severe psychopathology preceding onset of gender dysphoria was common. Autism spectrum problems were very common. The findings do not fit the commonly accepted image of a gender dysphoric minor. Treatment guidelines need to consider gender dysphoria in minors in the context of severe psychopathology and developmental difficulties.
Establishing an NP-staffed minor emergency area.
Buchanan, L; Powers, R D
1997-04-01
Patients with problems of high acuity need fully trained emergency physicians and nurses. Some patients with nonurgent problems can be cared for within the emergency department (ED) in a lower-cost setting designed and staffed specifically for this purpose. Staffing a fast track or minor emergency area (MEA) with nurse practitioners (NPs) is one way to satisfy the ED's care needs. One site analysis of the effectiveness of NPs indicates that patients are satisfied with their care, that nurses' interpersonal skills are better than those of physicians, that technical skills are equivalent, that patient outcomes are equivalent or superior and that NPs improve access to care. A nurse practitioner-staffed minor emergency area provides high quality care for approximately 21% of this site's adult emergency department population. Patients are triaged based on set criteria, allowing for short treatment times. The physical layout, triage criteria, and the NPs' scope of practice in the level 1 trauma center's ED are detailed.
Parent attitudes toward integrating parent involvement into teenage driver education courses.
Hartos, Jessica; Huff, David C
2008-01-01
The widespread adoption of graduated driver licensing (GDL) policies has effectively reduced crash risk for young drivers; however, parents must support, reinforce, and enforce GDL for it to be effective, and research indicates that parents need better information and instruction for adhering to GDL requirements, conducting supervised practice driving, and restricting independent teenage driving. Because teenagers in most states must take driver education to enter the licensing process prior to age 18, integrating parent involvement into driver education may be an effective way to inform and instruct parents on a large scale about teen driver safety. This study assessed parent attitudes (overall and by rural status, minority status, and income level) toward integrating parent involvement into teenage driver education classes. In this study, 321 parents of teenagers enrolled in driver education classes across the state of Montana completed surveys about current involvement in driver education and attitudes toward required involvement. The results indicated that parents were not very involved currently in their teenagers' driver education classes, but 76% reported that parents should be required to be involved. If involvement were required, parents would prefer having written materials sent home, access to information over the Internet, or discussions in person with the instructor; far fewer would prefer to attend classes or behind-the-wheel driving instruction. There were few differences in parent attitudes by rural or minority status but many by income level. Compared to higher income parents, lower income parents were more likely to endorse required parent involvement in teenage driver education classes and to want parent information from driver education about many teen driving issues. That the majority of parents are open to required involvement in their teenagers' driver education classes is promising because doing so could better prepare parents to understand and adhere to GDL policies, supervise teenagers' practice driving, and manage teen independent driving, all of which could further increase teen driver safety.
Are there critical periods for brain growth in children born preterm?
Cooke, R W I
2006-01-01
Children born very preterm who attend mainstream schools have a high prevalence of minor motor, behavioural, and learning disorders. These appear to be associated with reduced postnatal growth, particularly of the head. It is unclear when this poor growth occurs and whether growth restriction during different periods has different effects on later function. To identify periods during early development, in children born preterm, when impaired head growth may influence minor motor and cognitive function. A geographically defined cohort of 194 infants born in Merseyside during 1980-81 and weighing less than 1500 g. Measurements of head circumference (occipitofrontal circumference (OFC)) were available at birth, hospital discharge, 4 years, and 15 years of age. Assessments of intelligence (intelligence quotient (IQ)) and minor motor impairment (test of motor impairment (TOMI)) were made at 8 years of age. Clinical, social, and demographic variables were obtained from the clinical record and maternal interviews. IQ correlated significantly with OFC at 4 and 15 years of age after correction for growth restriction at birth (intrauterine growth restriction (IUGR)) and social class. TOMI scores correlated significantly with OFC at all four times, but especially with OFC at discharge and with change in OFC between birth and discharge. They were not affected by correction for social class or IUGR. Although both IQ and minor motor impairments correlate strongly with each other at school age in very low birthweight children, the factors determining them and their timing of operation are different. Interventions designed to improve IQ in this population would need to reduce IUGR and improve later childhood growth. Those aimed to improve motor ability need to be targeted more at brain protection during the neonatal period.
Ogedegbe, Gbenga; Fernandez, Senaida; Fournier, Leanne; Silver, Stephanie A; Kong, Jian; Gallagher, Sara; de la Calle, Franze; Plumhoff, Jordan; Sethi, Sheba; Choudhury, Evelyn; Teresi, Jeanne A
2013-05-01
The disproportionately high prevalence of hypertension and its associated mortality and morbidity in minority older adults is a major public health concern in the United States. Despite compelling evidence supporting the beneficial effects of therapeutic lifestyle changes on blood pressure reduction, these approaches remain largely untested among minority elders in community-based settings. The Counseling Older Adults to Control Hypertension trial is a two-arm randomized controlled trial of 250 African-American and Latino seniors, 60 years and older with uncontrolled hypertension, who attend senior centers. The goal of the trial is to evaluate the effect of a therapeutic lifestyle intervention delivered via group classes and individual motivational interviewing sessions versus health education, on blood pressure reduction. The primary outcome is change in systolic and diastolic blood pressure from baseline to 12 months. The secondary outcomes are blood pressure control at 12 months; changes in levels of physical activity; body mass index; and number of daily servings of fruits and vegetables from baseline to 12 months. The intervention group will receive 12 weekly group classes followed by individual motivational interviewing sessions. The health education group will receive an individual counseling session on healthy lifestyle changes and standard hypertension education materials. Findings from this study will provide needed information on the effectiveness of lifestyle interventions delivered in senior centers. Such information is crucial in order to develop implementation strategies for translation of evidence-based lifestyle interventions to senior centers, where many minority elders spend their time, making the centers a salient point of dissemination. Copyright © 2013. Published by Elsevier Inc.
Training generalized improvisation of tools by preschool children1
Parsonson, Barry S.; Baer, Donald M.
1978-01-01
The development of new, “creative” behaviors was examined in a problem-solving context. One form of problem solving, improvisation, was defined as finding a substitute to replace the specifically designated, but currently unavailable, tool ordinarily used to solve the problem. The study examined whether preschool children spontaneously displayed generalized improvisation skills, and if not, whether they could be trained to do so within different classes of tools. Generalization across different tool classes was monitored but not specifically trained. Five preschool children participated in individual sessions that first probed their skill at improvising tools, and later trained and probed generalized improvisation in one or more of three tool classes (Hammers, Containers, and Shoelaces), using a multiple-baseline design. All five children were trained with Hammers, two were trained in two classes, and two were trained in all three tool classes. Four of the five children improvised little in Baseline. During Training, all five showed increased generalized improvisation within the trained class, but none across classes. Tools fabricated by item combinations were rare in Baseline, but common in Training. Followup probes showed that the training effects were durable. PMID:16795596
ERIC Educational Resources Information Center
Chamakalayil, Lalitha; Riegel, Christine
2016-01-01
Education systems reproduce social inequality based on social class, gender, and minority ethnicity ascriptions, and are organized along national structures. This paper explores, how migration and international mobility shape an individuals scope of possibilities in the context of education. We analyze how societal and institutional possibilities…
The Science Standards and Students of Color
ERIC Educational Resources Information Center
Strachan, Samantha L.
2017-01-01
In a 2014 report, the National Center for Education Statistics (NCES) projected that by the year 2022, minority students will outnumber non-Hispanic white students enrolled in public schools. As the diversity of the student population in the United States increases, concerns arise about student performance in science classes, especially among…
Negotiating Identities: The Lives of Pakistani and Bangladeshi Young Disabled People
ERIC Educational Resources Information Center
Islam, Zoebia
2008-01-01
Research has generally amalgamated minority ethnic (all called "Asian" or "black") disabled young people's experiences and failed to acknowledge the multiple aspects of Asian and black disabled identities, for example how the combined attributes of race, ethnicity, religion, gender, culture, class and disability shape their…
Snapshot of a Hybrid Learning Environment
ERIC Educational Resources Information Center
Alexander, Mystica M.; Lynch, John E.; Rabinovich, Tamara; Knutel, Phillip G.
2014-01-01
In a time of flat enrollments in traditional higher education, online learning is booming. This article describes how one university evolved its programs to be on the forefront of the fastest-growing segment of online programs, hybrid learning. With a relatively minor investment in infrastructure, classes are delivered simultaneously to students…
ERIC Educational Resources Information Center
Gadsden, Gloria Y.
2008-01-01
In this article, the author shares her experience teaching in a predominantly white institution. As an African-American woman, she relates that some students have confronted her in class, typically with a great deal of hostility and a complete lack of respect. Others have gone to department chairs with a barrage of complaints in an attempt to…
Psychological Testing of Black People; A Position Paper.
ERIC Educational Resources Information Center
Dent, Harold E.; Williams, Robert L.
The psychological testing of blacks and other minorities inflicts dehumanization upon them by subjecting them to culturally-biased examinations. These tests are defended on "scientific" grounds, although it is evident that they are simply a form of institutionalized racism. Standardized tests of intelligence reflect a middle-class white bias that…
76 FR 64236 - Establishment of Class E Airspace; New Market, VA
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-18
...) operations within the National Airspace System. This action also makes a minor adjustment to the geographic... received. Subsequent to publication, the FAA found that the geographic coordinates needed to be adjusted... management of IFR operations at the airport. This action also adjusts the geographic coordinates of the...
76 FR 59013 - Amendment of Class E Airspace; Burlington, VT
Federal Register 2010, 2011, 2012, 2013, 2014
2011-09-23
... airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System. This action also makes a minor adjustment to the geographic coordinates of the airport and recognizes the name... modified for the safety and management of IFR operations at the airport. The geographic coordinates for...
76 FR 67056 - Amendment of Class E Airspace; Jacksonville, NC
Federal Register 2010, 2011, 2012, 2013, 2014
2011-10-31
... management of Instrument Flight Rules (IFR) operations within the National Airspace System. This action also makes a minor adjustment to the geographic coordinates of the airport. DATES: Effective 0901 UTC..., the FAA found that the geographic coordinates for Albert J. Ellis Airport needed to be adjusted. This...
77 FR 1012 - Establishment of Class E Airspace; Inverness, FL
Federal Register 2010, 2011, 2012, 2013, 2014
2012-01-09
... airspace management of Instrument Flight Rules (IFR) operations within the National Airspace System. This action also makes a minor adjustment to the geographic coordinates of the airport. DATES: Effective 0901.... Subsequent to publication, the FAA found that the geographic coordinates for Inverness Airport needed to be...
The Colonial Worker in Boston, 1775. Regional Report Number 75-2.
ERIC Educational Resources Information Center
Erlanger, Steven J.
This monograph focuses on the working class in Boston during 1775, the period just before the American Revolution. Seven sections describe Boston's geographical and political background; working conditions, employment, and controls; income by industry and occupation; standards of living; social life; mobility and the situation of minorities; and…
Ethnic Stratification and the Study of the Chicanos.
ERIC Educational Resources Information Center
Morrissey, Marietta
1983-01-01
Examines three analytical perspectives in the sociological study of ethnic minorities that have influenced Mexican-American studies: (1) international colonialism; (2) class; and (3) a Marxian focus on the international world system. Points to a transition in ethnic studies away from the assumption of similarity to recognition of variation in…
The Reporter's Control of News.
ERIC Educational Resources Information Center
Powell, Cheryl Riley
A recent study profiles the American journalist as young, male, white, educated, and coming from a solid middle- or upper-middle-class background. Women and minority groups are grossly underrepresented in the field of journalism. Other studies present parallels between the topics that are selected as newsworthy and the characteristics of those who…
Ethnicity in the American University System.
ERIC Educational Resources Information Center
Claerbaut, David
This paper examines the current state of ethnicity in the American university system, using the sociological paradigms applicable to majority-minority relations in its analysis. The English scholasticist-elite concept from which the American concept of higher education grew, focuses on white middle class cultural interests, and arises out of a…
Shaker Oats: Fortifying Musicality
ERIC Educational Resources Information Center
Semmes, Laurie R.
2010-01-01
In this article, the author describes how an experiment in a class she taught called Minority Musics of North America developed into a surprisingly successful and flexible teaching tool known as "Shaker Oats," created to encourage the concepts of ensemble and community. Most music educators in the United States today are familiar with…
Determining Persistence of Community College Students in Introductory Geology Classes
ERIC Educational Resources Information Center
Kraft, Katrien van der Hoeven
2014-01-01
Science, Technology, Engineering & Mathematics (STEM) careers have been touted as critical to the success of our nation and also provide important opportunities for access and equity of underrepresented minorities (URM's). Community colleges serve a diverse population and a large number of undergraduates currently enrolled in college, they are…
Parenting Styles of Lower Class Minority Mothers.
ERIC Educational Resources Information Center
Ross, Wendy Middlemiss; And Others
Efforts were undertaken to develop a parental interview for determining parenting style of parents of children of all ages and children within several subcultural groups. The interview provided mothers with descriptions of common situations in the home and asked the mothers to choose specific responses representing the following parenting styles:…
Inviting the Deprived to the Feast
ERIC Educational Resources Information Center
Gans, Bruce M.
2002-01-01
An urban community college routinely assigns Swift, Plato, Joyce, and other classic authors of the Western tradition to its immigrant and minority students. Bruce Gans, who founded and directs the program, tells of the value of Great Books to those who have the most to gain from rising above race, culture, and class.
ERIC Educational Resources Information Center
Smith, Taylor Renee
2018-01-01
Widely accepted definitions of academic success are neither adequate nor meaningful for many ethnic minority students. Using ethnographic research with high-achieving Latina college students in Oklahoma, student experiences in a collegiate Hispanic beauty pageant were analyzed. These successful Latina students negotiated academic achievement…
Marxian Approaches to Education.
ERIC Educational Resources Information Center
Carnoy, Martin
Traditional Marxist approaches to the state relegate superstructural institutions like the school to a minor role in the process of social change. More recent theories like those of Gramsci, Althusser, and Poulantzas raise the state and the class struggle in the state apparatuses to a much more prominent position: superstructure, including the…
An Examination of Perceived Constraints to Outdoor Recreation
G.T. Green; J.M. Bowker; X. Wang; H.K. Cordell; Cassandra Y. Johnson
2009-01-01
This study examines whether different social and marginalized groups in American society (minorities, women, rural dwellers, immigrants, low income, less educated) perceive more constraints or barriers to outdoor recreation participation than White middle-class males. Logistic regressions were applied to data from the National Survey on Recreation and the Environment...
The School Performance of Immigrant Minorities: A Comparative View.
ERIC Educational Resources Information Center
Gibson, Margaret A.
1987-01-01
Working class immigrant youth are frequently more successful in school than nonimmigrant students of similar background if they receive all their schooling in their new homeland. This article explores the forces that allow the children of Punjabi Sikh farm families to succeed academically in spite of severe handicaps. (VM)
Girls and Computer Technology: Barrier or Key?
ERIC Educational Resources Information Center
Gipson, Joella
1997-01-01
Discusses the disparity in numbers of girls and boys taking math, science, and computer classes in elementary and secondary schools, and examines steps being taken to better prepare girls, especially minority girls, for an increasingly technical society. A program in Michigan is described that involved a school and business partnership. (LRW)
In Buffalo, Opening Doors for the Overlooked
ERIC Educational Resources Information Center
Honawar, Vaishali
2007-01-01
This article describes the Buffalo Prep program. Housed at University of Buffalo, the program identifies disadvantaged but talented minority children, places them in academic-enrichment classes, and then finds them spots at private schools and a more selective public high school in the area to complete their precollegiate careers. In addition to…
NASA Astrophysics Data System (ADS)
Kifonidis, K.; Müller, E.
2012-08-01
Aims: We describe and study a family of new multigrid iterative solvers for the multidimensional, implicitly discretized equations of hydrodynamics. Schemes of this class are free of the Courant-Friedrichs-Lewy condition. They are intended for simulations in which widely differing wave propagation timescales are present. A preferred solver in this class is identified. Applications to some simple stiff test problems that are governed by the compressible Euler equations, are presented to evaluate the convergence behavior, and the stability properties of this solver. Algorithmic areas are determined where further work is required to make the method sufficiently efficient and robust for future application to difficult astrophysical flow problems. Methods: The basic equations are formulated and discretized on non-orthogonal, structured curvilinear meshes. Roe's approximate Riemann solver and a second-order accurate reconstruction scheme are used for spatial discretization. Implicit Runge-Kutta (ESDIRK) schemes are employed for temporal discretization. The resulting discrete equations are solved with a full-coarsening, non-linear multigrid method. Smoothing is performed with multistage-implicit smoothers. These are applied here to the time-dependent equations by means of dual time stepping. Results: For steady-state problems, our results show that the efficiency of the present approach is comparable to the best implicit solvers for conservative discretizations of the compressible Euler equations that can be found in the literature. The use of red-black as opposed to symmetric Gauss-Seidel iteration in the multistage-smoother is found to have only a minor impact on multigrid convergence. This should enable scalable parallelization without having to seriously compromise the method's algorithmic efficiency. For time-dependent test problems, our results reveal that the multigrid convergence rate degrades with increasing Courant numbers (i.e. time step sizes). Beyond a Courant number of nine thousand, even complete multigrid breakdown is observed. Local Fourier analysis indicates that the degradation of the convergence rate is associated with the coarse-grid correction algorithm. An implicit scheme for the Euler equations that makes use of the present method was, nevertheless, able to outperform a standard explicit scheme on a time-dependent problem with a Courant number of order 1000. Conclusions: For steady-state problems, the described approach enables the construction of parallelizable, efficient, and robust implicit hydrodynamics solvers. The applicability of the method to time-dependent problems is presently restricted to cases with moderately high Courant numbers. This is due to an insufficient coarse-grid correction of the employed multigrid algorithm for large time steps. Further research will be required to help us to understand and overcome the observed multigrid convergence difficulties for time-dependent problems.
Design, Development and Validation of a Model of Problem Solving for Egyptian Science Classes
ERIC Educational Resources Information Center
Shahat, Mohamed A.; Ohle, Annika; Treagust, David F.; Fischer, Hans E.
2013-01-01
Educators and policymakers envision the future of education in Egypt as enabling learners to acquire scientific inquiry and problem-solving skills. In this article, we describe the validation of a model for problem solving and the design of instruments for evaluating new teaching methods in Egyptian science classes. The instruments were based on…
2014-03-27
1959). On a linear-programming, combinatorial approach to the traveling - salesman problem . Operations Research, 58-66. Daugherty, P. J., Myers, M. B...1 Problem Statement... Problem Statement As of 01 September 2013, the USAF is tracking 12,571 individual Class VII assets valued at $213.5 million for final disposition
Generalizing Backtrack-Free Search: A Framework for Search-Free Constraint Satisfaction
NASA Technical Reports Server (NTRS)
Jonsson, Ari K.; Frank, Jeremy
2000-01-01
Tractable classes of constraint satisfaction problems are of great importance in artificial intelligence. Identifying and taking advantage of such classes can significantly speed up constraint problem solving. In addition, tractable classes are utilized in applications where strict worst-case performance guarantees are required, such as constraint-based plan execution. In this work, we present a formal framework for search-free (backtrack-free) constraint satisfaction. The framework is based on general procedures, rather than specific propagation techniques, and thus generalizes existing techniques in this area. We also relate search-free problem solving to the notion of decision sets and use the result to provide a constructive criterion that is sufficient to guarantee search-free problem solving.
The Unexpected Minority: Handicapped Children in America.
ERIC Educational Resources Information Center
Gliedman, John; Roth, William
The book takes a civil rights perspective to the problems of handicapped children and adults and points out that no other minority group has its social and political oppression so thoroughly masked as the disabled in America. Part I looks at why American society has traditionally failed to view the handicapped as an oppressed social group. Three…
World Yearbook of Education 1981. Education of Minorities.
ERIC Educational Resources Information Center
Megarry, Jacquetta, Ed.; And Others
The problems of students who are disadvantaged by differences in culture and language are examined in 22 essays. The first section presents concepts, issues, and trends in research and practice. Part Two offers a range of national policies on minority group education in the Soviet Union, Canada, China, Africa, and the United Kingdom. Essays in the…
Gifted Programming for Poor or Minority Urban Students: Issues and Lessons Learned
ERIC Educational Resources Information Center
Olszewski-Kubilius, Paula; Thomson, Dana L.
2010-01-01
Gaps in the achievement between poor and more advantaged children and minority and nonminority students of all ages continue to be the most central problem in the field of education. Achievement differences by racial/ethnic group and socioeconomic status (SES) level are especially pronounced and pervasive within the major urban school districts in…
ERIC Educational Resources Information Center
Putman, Hannah; Hansen, Michael; Walsh, Kate; Quintero, Diana
2016-01-01
Public schools are suffering from a well-publicized diversity problem. Minority students make up nearly half of all public school students, yet minority teachers comprise just 18 percent of the teacher workforce. In an effort to address what Slate has described as "the one cause in education everyone supports," school districts across…
High Hopes and Harsh Realities: The Real Challenges to Building a Diverse Workforce
ERIC Educational Resources Information Center
Putman, Hannah; Hansen, Michael; Walsh, Kate; Quintero, Diana
2016-01-01
Public schools are suffering from a well-publicized diversity problem. Minority students make up nearly half of all public school students, yet minority teachers comprise just 18 percent of the teacher workforce. In an effort to address what Slate has described as "the one cause in education everyone supports," school districts across…
ERIC Educational Resources Information Center
Santos de Barona, Maryann; Barona, Andres
2006-01-01
This article first discusses the challenges in providing psychoeducational services to the rapidly increasing minority populations in the United States, then describes problems encountered by educators. This is followed by a brief elaboration of the role and function of school counselors and school psychologists and how they can facilitate service…
Economically-Disadvantaged African-American Boys' Perception of Their Elementary School
ERIC Educational Resources Information Center
Coryat-Hon, Dawn R.
2014-01-01
At one Title I K-4 elementary campus located on the Gulf Coast of Southeast Texas, there seemed to be a prevalent problem of minority students, particularly male students, receiving office referrals at a higher rate than their non-minority counterparts in past years. Research from a 2010 Children's Defense Fund report indicates that…
Oliveri, Paolo
2017-08-22
Qualitative data modelling is a fundamental branch of pattern recognition, with many applications in analytical chemistry, and embraces two main families: discriminant and class-modelling methods. The first strategy is appropriate when at least two classes are meaningfully defined in the problem under study, while the second strategy is the right choice when the focus is on a single class. For this reason, class-modelling methods are also referred to as one-class classifiers. Although, in the food analytical field, most of the issues would be properly addressed by class-modelling strategies, the use of such techniques is rather limited and, in many cases, discriminant methods are forcedly used for one-class problems, introducing a bias in the outcomes. Key aspects related to the development, optimisation and validation of suitable class models for the characterisation of food products are critically analysed and discussed. Copyright © 2017 Elsevier B.V. All rights reserved.
Minority Produced Television: Problems of Policy and Measurement
ERIC Educational Resources Information Center
Clyde, Robert W.; McDermott, Joseph T.
1970-01-01
The authors treat some of the special problems faced in evaluating a black-produced television series. Black-Voices was a weekly offering of KTCA-TV in Minneapolis, owned and operated by the Twin Cities Area Educational Television Corporation." (Editor)
Modern Problems: Sociology Units. An Experimental Program for Grade 12.
ERIC Educational Resources Information Center
Carlson, Marshall; Fennig, Lois
GRADES OR AGES: Grade 12. SUBJECT MATTER: Sociology; modern problems. ORGANIZATION AND PHYSICAL APPEARANCE: The guide contains two units, one on the problems of minority groups and the other on social pathology. Sub-sections of unit 2 include crime and criminals, criminal investigation, gun control, U.S. criminal law, criminal procedure,…
New approaches to divorce with children: A problem of public health
Vezzetti, Vittorio Carlo
2016-01-01
This broad review elaborates on the most up-to-date knowledge on biochemical and psychobiological aspects of parental loss and other childhood adversities during divorce involving minor children. So far, divorce involving minor children was unfortunately considered by authorities only as a purely juridical problem, and this approach has often allowed a completely different approach according to the Courts. Now, scientific research, also making use of animal models, is demonstrating the biological basis of the problem and the indisputable consequences on the well-being and health of children. The innovative conclusion of this review is that this argument (because of its frequency and gravity) is primarily a question of public health and that it is necessary to further harmonize practices in this area. PMID:28070408
Lecture-Capture Software and the Teaching of Soils
NASA Astrophysics Data System (ADS)
Brevik, Eric C.
2014-05-01
Several companies now offer software that can record academic lectures and place them on password-protected course websites for future review by students. Using lecture-capture software offers several advantages for the instructor and the students, including: 1) The ability for students who miss class for legitimate reasons (e.g., participation in school-sanctioned extra-curricular activities, illness or family emergencies) to get lecture materials by logging into the class website. This provides these students with a more complete exposure to the material than simply copying a classmate's notes. 2) The instructor is able to direct students who miss class for legitimate reasons to the recorded lecture rather than needing to spend time going over the material with those students and that recap does not end up being rushed. 3) The ability to address course conflicts for graduating seniors by allowing them to take the lecture portion of the class via recorded lecture. 4) Students who desire more in-depth learning are able to go back to selected portions of previous lectures to review and reconsider a topic of discussion or to fill in vague sections of their notes. There are also potential disadvantages to the use of lecture-capture software, including: 1) decreased student attendance in class because they feel they can watch class later at a time of their own choosing, 2) additional time spent by the instructor dealing with the technology, and 3) problems with hardware or software during class time that prevents recording a given day's lecture. These problems can often be addressed or justified relatively easily. If problem 1 is of concern to an instructor it can be addressed by blocking online access to individual students who have a poor record of class attendance. In the case of problem 2, the extra time spent with the technology is often offset by a reduction in time answering questions from students who have missed class. Problem 3 does happen, but in the author's experience it is fairly rare, representing less than 5% of class sessions per semester. Student comments have been overwhelmingly favorable towards the use of captured lectures since the technology was first adopted in the author's classes in 2009.
The Study of Adopting Problem Based Learning in Normal Scale Class Course Design
ERIC Educational Resources Information Center
Hsu, Chia-ling
2014-01-01
This study adopts the Problem Based Learning (PBL) for pre-service teachers in teacher education program. The reasons to adopt PBL are the class scale is not a small class, the contents are too many to teach, and the technologies are ready to be used in classroom. This study used an intermediary, movie, for scenario to student to define the…
Active Learning and Just-in-Time Teaching in a Material and Energy Balances Course
ERIC Educational Resources Information Center
Liberatore, Matthew W.
2013-01-01
The delivery of a material and energy balances course is enhanced through a series of in-class and out-of-class exercises. An active learning classroom is achieved, even at class sizes over 150 students, using multiple instructors in a single classroom, problem solving in teams, problems based on YouTube videos, and just-in-time teaching. To avoid…
NASA Astrophysics Data System (ADS)
Fackerell, E. D.; Hartley, D.; Tucker, R. W.
We examine in detail the Cauchy problem for a class of non-linear hyperbolic equations in two independent variables. This class is motivated by the analysis of the dynamics of a line of non-linearly coupled particles by Fermi, Pasta, and Ulam and extends the recent investigation of this problem by Gardner and Kamran. We find conditions for the existence of a 1-stable Cartan characteristic of a Pfaffian exterior differential system whose integral curves provide a solution to the Cauchy problem. The same obstruction to involution is exposed in Darboux's method of integration and the two approaches are compared. A class of particular solutions to the obstruction is constructed.