Photoelectron angular distributions from laser-excited aligned Yb atoms ionized by vacuum ultraviolet radiation

Kerling C, Böwering N, Heinzmann U. Photoelectron angular distributions from laser-excited aligned Yb atoms ionized by vacuum ultraviolet radiation. Journal of Physics B: Atomic, Molecular and Optical Physics. 1990;23(20):L629-L635

Assessment System for Physical Abuse in adolescents caused by Domestic Violence

Research shows that around 300 million children in the world live in situations of violence in their homes. In addition, it is mentioned that the attention to these cases is not adequate in terms of attention time and treatment [1]. This paper presents a web application which obtains statistics in real time that allows specialists to show cases of physical abuse and thus be able to intervene quickly. We present a system based on Amazon Web Services (AWS) made with MySql database and the RDS service. Compared to the traditional method, a survey carried out on paper and with a data processing time. This comparison showed that the average data capture rate is lower than with the traditional method since the data is uploaded to the network instantly without the need to digitize the responses and it can also be used anywhere with internet access.Revisión por pare

Addressing the immediate need for emergency providers in resource-limited settings: the model of a six-month emergency medicine curriculum in Haiti

Background: In many resource-limited settings, emergency medicine (EM) is underdeveloped and formal EM training limited. Residencies and fellowships are an ideal long-term solution but cannot meet immediate needs for emergency providers, while short-term programs are often too limited in content. We describe a third method successfully implemented in Haiti: a medium-duration certificate program to meet the immediate need for emergency specialists. Methods: In conjunction with the Haitian Ministry of Health and National Medical School, we developed and implemented a novel, 6-month EM certificate program to build human resources for health and emergency care capacity. The program consisted of didactic and supervised clinical components, covering core content in EM. Didactics included lectures, simulations, hands-on skill-sessions, and journal clubs. Supervised clinical time reinforced concepts and taught an EM approach to patient care. Results: Fourteen physicians from around Haiti successfully completed the program; all improved from their pre-test to post-test. At the end of the program and 9-month post-program evaluations, participants rated the program highly, and most felt they used their new knowledge daily. Participants found clinical supervision and simulation particularly useful. Key components to our program’s success included collaboration with the Ministry of Health and National Medical School, supervised clinical time, and the continual presence of a course director. The program could be improved by a more flexible curriculum and by grouping participants by baseline knowledge levels. Conclusion: Medium-duration certificate programs offer a viable option for addressing immediate human resource gaps in emergency care, and our program offers a model for implementation in resource-limited settings. Similar options should be considered for other emerging specialties in resource-limited settings

The congenital clubfoot – immunohistological analysis of the extracellular matrix

Arno Kerling,1 Gisela Stoltenburg-Didinger,2 Lena Grams,1 Uwe Tegtbur,1 Hauke Horstmann,1 Momme Kück,1 Holger Mellerowicz3 1Institute of Sports Medicine, Hannover Medical School, Hannover, Germany; 2Gisela Stoltenburg-Didinger, Institute of Cell and Neurobiology, Charité Universitätsmedizin Berlin CCO, Berlin, Germany; 3Holger Mellerowicz, Clinic for Pediatric Orthopedics and Traumatology, Helios Klinikum Emil von Behring, Berlin, Germany Purpose: Congenital clubfoot is one of the most common limb disorders in humans and its etiology is still unclear. In order to better understand the pathogenesis of patients with primary clubfoot, we examined whether there are quantitative changes in the extracellular matrix (ECM; based on common interstitial collagens [C] like CI and CIII, microfilamentous collagens like CVI, noncollagenous proteins like undulin, and enzymes like matrixmetalloproteinase [MMP]-2 and tissue inhibitor of matrixmetalloproteinase [TIMP]-2 that are known to play a role in fibrogenesis and fibrolysis) of muscles involved in the foot deformity of patients with primary clubfoot corresponding to fibrosis. Patients and methods: Thirty patients (age ranging from 4 months to 5 years and 7 months) with primary clubfoot were examined (23 male and 7 female patients), among whom 18 patients were affected on one side and 12 affected on both sides. Twenty-five biopsies were taken during the first operative foot correction (Crawford–McKay) and 5 in the context of relapses. Muscle biopsies were taken from the muscles involved in the defect (Musculus [M.] gastrocnemius and M. tibialis anterior) and from the M. vastus lateralis of the M. quadriceps femoris, which were treated as healthy comparison muscles. Quantitative analysis of the components of the ECM was performed using a computer-assisted fibrosis measurement of the immunohistochemically processed tissue samples. Results: We found higher values for M. gastrocnemius for CI, CIII, CVI and undulin in comparison with M. vastus lateralis. However, values for TIMP-2 were reduced. We found no significant differences for the components of M. tibialis anterior and M. vastus lateralis. There were no quantitative differences between male and female or between patients affected on one side and both sides. In patients who underwent relapse surgery, CI, CIII, CVI, and undulin of the gastrocnemius were significantly higher, while TIMP-2 was significantly lower. Conclusion: In the present study, we found manifest fibrosis in gastrocnemius due to quantitative changes in the ECM. In contrast to other studies, we found increasing fibrosis not just in contracted tissues but also in the muscle itself. Further studies are needed to clarify whether these changes are primarily responsible for the malfunction or whether they occur secondarily in the consequence of the dysfunction. Keywords: pes equinovarus, clubfoot, extracellular matrix, fibrosis, collagens, TIMP-