Relationship between measures of academic quality and undergraduate student attrition: the case of higher education institutions in the Colombian Caribbean region     

Anabella Martínez  Mónica Borjas  Mariela Herrera  Jorge Valencia 《高等教育研究与发展》2015,34(6):1192-1206

Undergraduate student attrition is a major concern in higher education. It is usually explained by the impact of student attributes; however, recent developments in student success literature point to the need of exploring institutional practices that may impact a student's decision to abandon their studies. The current weight of academic quality assurance for Colombian higher education institutions (HEI) and what such measures may mean for how HEI fulfill their missions indicates the need to consider a possible relation between such quality measures and undergraduate student attrition. Using official databases from the Colombian Ministry of Education for the year 2009, this study explores through analysis of variance the relationship between attrition and three measures of academic quality: accreditation status, professional test scores required to graduate (Saber Pro Exam) and the number of research groups at HEI. The scope of the study is the Colombian Caribbean region and the sample includes 19 HEI. Study results demonstrate that the percentage of accredited undergraduate programs at HEI was the only measure of quality assurance, out of the three explored, that showed a statistically significant relationship with undergraduate student attrition rates.  相似文献   

On the Edge of Mathematics and Biology Integration: Improving Quantitative Skills in Undergraduate Biology Education     

Jason Feser  Helen Vasaly  Jose Herrera 《CBE life sciences education》2013,12(2):124-128

The feature describes two major efforts to integrate mathematics and biology. A call is made to biologists to consider the need to address biology undergraduate education changes and to use the resources described.  相似文献   

Sleep in athletes and the effects of Ramadan     

Roky R  Herrera CP  Ahmed Q 《Journal of sports sciences》2012,30(Z1):S75-S84

Sleep is now considered as a new frontier in performance enhancement. This article presents background content on sleep function, sleep needs and methods of sleep investigation along with data on the potential effects of Ramadan fasting on sleep in normal individuals and athletes. Accumulated sleep loss has negative impacts on cognitive function, mood, daytime sleepiness and performance. Sleep studies in athletes fasting during Ramadan are very rare. Most of them have demonstrated that during this month, sleep duration decreased and sleep timing shifted. But the direct relation between sleep changes and performance during Ramadan is not yet elucidated. Objective sleep patterns can be investigated using polysomnography, actigraphy, and standardised questionnaires and recorded in daily journals or sleep logs. The available data on sleep indicate that team doctors and coaches should consider planning sleep schedule and napping; implementing educational programmes focusing on the need for healthy sleep; and consider routine screening for sleep loss in athletes of all age groups and genders.  相似文献   

What We Talk About When We Talk About Nepantla: Gloria Anzaldúa and the Queer Fruit of Aztec Philosophy     

Marcos de R. Antuna 《Journal of Latinos & Education》2018,17(2):159-163

A particular twenty-first-century understanding of the Aztec concept nepantla, one which has recently taken hold in critical education thanks to the writings of Gloria Anzaldúa, does not accurately reflect traditional Aztec history and philosophy. This essay reveals why this is the case, demonstrating in detail the meaning of nepantla within the broader Aztec ontology. It then asks education researchers and practitioners to instead use the theoretical framework of malinalli, the Aztec philosophical concept which best aligns with transformative social justice goals.  相似文献   

The impact of the French policy mix on business R&D: How geography matters     

Benjamin Montmartin  Marcos Herrera  Nadine Massard 《Research Policy》2018,47(10):2010-2027

Based on a spatial extension of an R&D investment model, this paper measures the macroeconomic impact of the French R&D policy mix on business R&D using regional data. Our measure takes into account not only the direct effect of policies but also indirect effects generated by the existence of spatial interaction between regions. Using a unique database containing information on the levels of various R&D policy instruments received by firms in French NUTS3 regions over the period 2001–2011, our estimates of a spatial Durbin model with structural breaks and fixed effects reveal the existence of a negative spatial dependence among R&D investments in regions. In this context, while a-spatial estimates would conclude that all instruments have a crowding-in effect, we show that national subsidies are the only instrument that is able to generate significant crowding-in effects. On the contrary, it seems that the design, size and spatial allocation of funds from the other instruments (tax credits, local subsidies, European subsidies) lead them to act (in the French context) as beggar-thy-neighbor policies.  相似文献   

A 6-minute sub-maximal run test to predict VO2 max     

Marcos Matabuena  Juan C. Vidal  Philip R. Hayes  Fernando Huelin Trillo 《Journal of sports sciences》2018,36(22):2531-2536

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A methodological approach for object-relational database design using UML     

Esperanza Marcos  Belén Vela und José María Cavero 《Informatik - Forschung und Entwicklung》2004,18(3-4):152-164

The most common way of designing databases is by means of a conceptual model, such as E/R, without taking into account other views of the system. New object-oriented design languages, such as UML (Unified Modelling Language), allow the whole system, including the database schema, to be modelled in a uniform way. Moreover, as UML is an extendable language, it allows for any necessary introduction of new stereotypes for specific applications. Proposals exist to extend UML with stereotypes for database design but, unfortunately, they are focused on relational databases. However, new applications require complex objects to be represented in complex relationships, object-relational databases being more appropriate for these requirements. The framework of this paper is an Object-Relational Database Design Methodology, which defines new UML stereotypes for Object-Relational Database Design and proposes some guidelines to translate a UML conceptual schema into an object-relational schema. The guidelines are based on the SQL: 1999 object-relational model and on Oracle8i as a product example.Received: 22 January 2002, Revised: 10 June 2002, This paper is a revised and extended version of Extending UML for Object-Relational Database Design, presented in the UML2001 conference [17].  相似文献   

Wavelet-based deconvolution of ultrasonic signals in nondestructive evaluation   总被引：1，自引：0，他引：1  

OROZCO Rubén 《浙江大学学报(A卷英文版)》2006,7(10):1748-1756

INTRODUCTION Deconvolution of ultrasonic signals is defined as the solution of the inverse problem of convolving an input signal, known as the system function h(n), with a medium reflectivity function x(n) and can be rep- resented by y(n)=h(n)*x(n) η(n), (1) where y(n) is the measured signal, * denotes the convolution operation and η(n) is the additive noise. Recovering x(n) from the observation y(n) leads to improving the appearance and the axial resolution of the RF-signals by removin…  相似文献   

Gender differences in the risk for delinquency among youth exposed to family violence     

Herrera VM  McCloskey LA 《Child abuse & neglect》2001,25(8):1037-1051

OBJECTIVE: The purpose of this research was to illuminate gender differences in adolescent delinquency against a backdrop of childhood exposure to both marital violence and physical child abuse. Specifically, analyses were performed to trace the unique effects of exposure to either form of family violence (marital or child) on the violent and nonviolent delinquency of boys and girls. METHOD: This is a prospective study of 299 children who were interviewed with their mothers in 1991 about forms of abuse in the family. Approximately 5 years later a search of juvenile court records was performed for these same children. Details on the nature of the crimes were collected. Outcome variables included: (1) whether there was ever an arrest; and (2) whether there was ever an arrest for a violent crime. RESULTS: Preliminary analyses indicated no gender differences in overall referral rates to juvenile court, although boys were more likely than girls to be referred for property, felony, and violent offenses. Exposure to marital violence in childhood predicted referral to juvenile court. Girls with a history of physical child abuse were arrested for violent offenses more than boys with similar histories, but the context of violent offenses differed dramatically by gender: Nearly all referrals for a violent offense for girls were for domestic violence. CONCLUSIONS: Although boys and girls share similar family risk factors for delinquency, girls are more likely than boys to be arrested for violent offenses in the aftermath of child physical abuse. These findings suggest that it takes more severe abuse to prompt violence in girls than is necessary to explain boys' violent offending.  相似文献   

Long-Term Effects of Food Supplementation and Psychosocial Intervention on the Physical Growth of Colombian Infants at Risk of Malnutrition     

Charles M. Super  M. Guillermo Herrera  José O. Mora 《Child development》1990,61(1):29-49

280 Colombian infants at risk of malnutrition were randomly assigned to 1 of 4 experimental groups formed by the presence/absence of 2 interventions: (1) food supplementation for the entire family, from mid-pregnancy until the target child was 3 years old, and (2) a twice-weekly home-visiting program to promote cognitive development, from birth until age 3. All families received free medical care and were studied prospectively. At 3 years of age, children who had received food supplementation averaged 2.6 cm and 642 grams larger than controls. Home visiting and supplementation together reduced the number of children with severe growth retardation. 3 years after intervention (age 6), supplementation effects remained. Children in the home visit condition had become larger than controls, by 1.7 cm and 448 grams. The interactive effect to reduce stunting was marginally significant at this age, and the overall distribution of scores was improved. Other results suggest that changes in family functioning as well as biological mechanisms account for the observed pattern of results.  相似文献