Identification,collection and consumption of weeds and wild vegetables in Mexican communities: institutionalized local ancestral indigenous knowledge as ecological literacy,place and identity

Cultural Studies of Science Education - This paper sets forth the idea that a critical aspect of the socialization process of Mexican communities is to maintain and carry-out traditional knowledge...     

Garden-Based Learning: An Experience With “At Risk” Secondary Education Students

The reengagement of disenchanted secondary students is one of the priorities of the educational system. Over a six-year period (2003–2004 to 2008–2009), 63 disruptive and low-performance secondary school students were integrated into a two-year garden-based learning program, which took place in southeastern Spain. This article intends to assess the quantitative and qualitative changes in both academic outcomes and personal behavior brought about by the experience. Results show that school failure decreased substantially, while the dropout rate was reduced from an initial 30% to zero in some years. Disruptive episode control improved significantly in the classroom, where teachers observed a decided improvement in students' skills, self-esteem, and self-confidence.     

Towards teaching analytics: a contextual model for analysis of students’ evaluation of teaching through text mining and machine learning classification

Education and Information Technologies - Recent trends in educational technology have led to emergence of methods such as teaching analytics (TA) in understanding and management of the...     

Adaptive SMC based on the dynamic containment of the sliding variable

Conventional Sliding Mode Controllers (SMCs) exhibit a robust performance against matched bounded uncertainties and disturbances by containing them under a fixed controller’s effort. Consequently, the controller is commonly found excessive, leading to chattering and straining the actuator. As a solution, the variable-gain SMCs adapt to the instantaneous system requirements, thus attenuating the aforesaid effects and keeping the SMC’s benefits. However, the reported adaptive laws underlying such behavior commonly require arbitrary design considerations and do not consider practical implementation. Unlikely, in this work, a hysteresis-based adaptability law to drive the sliding variable to a boundary layer around zero is proposed. The sliding boundary—hysteresis’ width—will consistently “bounce” over the sliding variable, trying to shrink against it while preserving the sliding mode. This behavior finds its steady-state once the sliding variable and the sliding boundary’s dynamics are synchronized, with no need of subjective or arbitrary adjustments. The close-loop tuning can be derived from the system’s parameters alone, and its steady-state performance can be quantitatively predicted. Furthermore, a method to adjust the sliding surface parameters according to the system’s desired behavior is provided, all in a closed, analytical way. Finally, the physical actuator limits are taken into account and never exceeded, and the discrete nature of the devices normally used for SMC implementation is incorporated throughout. Two examples are studied to portray the proposal’s advantages.     

Decision support system through automatic algorithms and electronic request in diagnosis of anaemia for primary care patients

IntroductionAn appropriate management of anaemia laboratory tests is crucial for a correct diagnosis and treatment. A non-sequential “shotgun” approach (where every anaemia related test is ordered) causes workload and cost increases and could be potentially harmful. We have implemented a Decision Support System through our laboratory information system (LIMS) based on reflexive algorithms and automatic generation of interpretative reports specifically in diagnosis of anaemia for primary care patients.Materials and methodsWhen a request contained an “Anaemia Suspicion Study” profile, more than twenty automatic reflexive rules were activated in our LIMS based upon laboratory results. These rules normally involved the addition of reflexive tests. A final report was automatically generated for each interpretation which was always reviewed for their validity by two staff pathologists. We measured the impact of this system in the ordering of most common anaemia related tests and if a proper treatment was established based on the interpretive report.ResultsFrom all the studies performed, only 12% were positive being “iron deficiency” and “anaemia of chronic disease” the most frequent causes, 62% and 17%, respectively. Proper treatment was established in 88% of these anaemic patients. Total iron, transferrin, ferritin, folate and vitamin B12 demand decreased substantially after implementation representing a cost reduction of 40% only for these five tests.ConclusionsOur system has easily improved patient outcomes, advising on individual clinical cases. We have also noticeably reduced the number of over-requested tests and laboratory costs.     

Context-us association as a determinant of long-term habituation in the crabChasmagnathus

An opaque screen moving overhead elicits an escape response in the crabChasmagnathus that habituates for a long period after just a few presentations. A series of experiments was performed to determine whether the crab’s long-term habituation (LTH) is mediated by an association between contextual cues and the eliciting stimulus.Chasmagnathus failed to exhibit LTH when a visual cue in the experimental environment was changed between training and testing. In addition, long-term exposure to the context in the absence of the eliciting stimulus impaired LTH, both when the exposure preceded the habituation training (latent inhibition) and when the exposure came after the training (extinction). Long exposure to the context alone prior to training also produced a decrease in responsiveness to the eliciting stimulus, which confirmed previous results. However, both effects of long exposure were only manifested when the crabs spent a period of time between exposure and testing out of the experimental context. The results of this paper are interpreted as supporting the view thatChasmagnathus LTH can be understood largely by Wagner’s associative theory of habituation.     

Does burnout begin with student-teaching? Analyzing efficacy,burnout, and support during the student-teaching semester

The burnout process may begin as early as the student-teaching experience [Gold, Y., 1985. Does teacher burnout begin with student teaching? Education, 105, 254–257]. Data from 49 student–teachers in the southwest United States were gathered twice during their student-teaching practicum. Data assessing teacher efficacy, teacher burnout, learning climate, and cooperating teacher support (guidance or imitation) were analyzed using correlational analyses, repeated measures MANOVA, a 2×2 repeated measures MANOVA, and stepwise regression. Results indicated significant increases in efficacy and decreases in burnout symptoms over time. We found significant interactions in the three factors of burnout by guidance group, such that student–teachers experiencing high guidance demonstrated lower levels of burnout at the end of their practicum.     

Failure to review STAT clinical laboratory requests and its economical impact

Background

Failure to follow-up laboratory test results has been described as one of the major processes contributing to unsafe patient care. Currently, most of the laboratories do not know with certainty not only their rate of missed (or unreviewed) requests but the economical cost and impact that this issue implies. The aim of our study was to measure that rate and calculate the resulting costs.

Material and methods

In January 2015, we checked in our Laboratory Information Management System (LIMS) for every emergency request from 1^st July 2011 to 30^th June 2014, if they had been reviewed by any allowed user or not. 319,064 requests were ordered during that period of time. Results were expressed as “ordered requests”, “missed requests” and its percentage. Additionally, total cost of missed requests was calculated in euros (€). “Non-productive days” were theorised (as the days producing requests that were not reviewed) based on these results.

Results

7924 requests (2.5%) were never reviewed by clinicians. This represented a total cost of 203,039 € and 27 “non-productive” days in three years. Significant differences between inpatients, outpatients and emergency department as well as different emergencies units were found after application of statistical analysis.

Conclusions

In terms of resources, never reviewed or missed requests appear to be a not negligible problem for the clinical laboratory management. Electronic result delivery, with electronic endorsement to indicate follow-up of requests along with better systems of electronic requesting should be investigated as a way of improving patient outcomes and save unnecessary expenses.Key words: quality indicators, health care, extra-analytical phase, total quality management, clinical laboratory information systems     

Adult Education and the Health Literacy of Hispanic Immigrants in the United States

Discussion on the advantages of integrating health literacy into adult education has primarily been theoretical and conceptual. There is a need for studies that assess the impact of adult education on health literacy. This study implemented a quasi-experimental design to explore whether basic adult instruction may constitute a venue for improving health literacy among Spanish-speaking immigrants. Participants included adults in a High School Equivalency program in a US-Mexico border community who received either a standard GED curriculum or a GED curriculum enhanced with health literacy content. The Short Spanish TOFHLA was used to measure health literacy. While S-TOFHLA scores and health literacy levels improved in all participants, no statistically significant differences were observed across groups. Results are consistent with recommendations supporting adult education as a strategy for improving health literacy.     

Parenting as a Protective Process for School Success in Children from Homeless Families

The role of parenting as a protective process for school success was investigated among 59 African American children 6 to 11 years old from homeless families residing in a Minneapolis shelter. Reliable scores for three dimensions of parenting—parent-child closeness, parent involvement in education, and firm discipline—were derived from ratings based on interviews with parents while they were living at the shelter. After families had left the shelter, children's school success was assessed via three types of indicators: a) performance on a standardized achievement test; b) ratings of school records for the current school semester as well as cumulative school records; and c) teacher assessments of appropriate school behavior. Results suggested that good parenting may be protective for school success in these children. Close parent-child relationships and high parent involvement in the child's education were associated with school success in terms of school records of achievement and behavior in school. Parent's intellectual functioning, education level, psychological distress and firm disciplinary practices were unrelated to child academic success. Future research directions and implications for intervention are discussed.