Adapting realist evaluation for Made in Africa evaluation criteria

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Nombeko P. Mbava ◽  
Sarah Chapman
2020 ◽  
Vol 2020 ◽  
pp. 1-26
Author(s):  
Hui Li ◽  
Yapeng Liu ◽  
Wenzhong Lin ◽  
Lingwei Xu ◽  
Junyin Wang

In 5G scenarios, there are a large number of video signals that need to be processed. Multiobject tracking is one of the main directions in video signal processing. Data association is a very important link in tracking algorithms. Complexity and efficiency of association method have a direct impact on the performance of multiobject tracking. Breakthroughs have been made in data association methods based on deep learning, and the performance has been greatly improved compared with traditional methods. However, there is a lack of overviews about data association methods. Therefore, this article first analyzes characteristics and performance of three traditional data association methods and then focuses on data association methods based on deep learning, which is divided into different deep network structures: SOT methods, end-to-end methods, and Wasserstein metric methods. The performance of each tracking method is compared and analyzed. Finally, it summarizes the current common datasets and evaluation criteria for multiobject tracking and discusses challenges and development trends of data association technology and data association methods which ensure robust and real time need to be continuously improved.


1978 ◽  
Vol 22 (1) ◽  
pp. 617-619
Author(s):  
Harold P. Van Cott ◽  
Joel J. Kramer

At the 1977 meeting of the HFS a concept was presented for a Standard Ergonomics Reference Data System. The system would have two goals (1) the critical evaluation and integration of data from the existing published ergonomics literature, and (2) the development and application of standard measurement methods to collect key ergonomics data representative of the U.S. population not found in the published literature in a reliable form. This presentation will cover progress made in 1978 to assess user data needs and develop critical evaluation criteria, in light of significant overall program planning changes.


2021 ◽  
Vol 14 (3) ◽  
pp. 279
Author(s):  
Maria Nilvane Fernandes ◽  
Nayara de Souza Costa ◽  
Janiely Correia

O escopo do presente estudo é identificar as articulações realizadas no campo da socioeducação para a efetivação da educação escolar, especialmente, no que se refere ao tipo de modalidade de ensino adotada pelas instituições que executam as medidas socioeducativas. As discussões aqui propostas são geradas a partir da busca do entendimento de três fios articuladores: a Educação de Jovens e Adultos (EJA), a socioeducação e a interseção entre estes dois. Para tanto, abordaremos a educação na socioeducação, a escolarização dos adolescentes privados de liberdade ao nível de Brasil e, principalmente, em nível estadual, com enfoque no Amazonas, e a escolha da EJA nesses contextos. Ademais, ao longo da discussão observaremos a incompatibilidade entre as idades de atendimento no sistema socioeducativo e na EJA e, ainda, a inexistência de critérios de avaliação no processo de seleção de profissionais, que levem em consideração o perfil, a formação e qualificação específicos para atuarem diante das particularidades desse público e do espaço em questão. Afinal, a educação sistemática e assistemática, formal ou não formal, se constitui como fator preponderante no processo de socioeducação.Palavras-chave: Sistema socioeducativo; Educação escolar; Educação de Jovens e Adultos (EJA).Youth and Adult Education for adolescents in conflict with the law: school education in socioeducationABSTRACTThe scope of this study is to identify the articulations made in the field of socioeducation for the implementation of school education, especially regarding the type of education modality adopted by the institutions that carry out the socioeducational measures. The discussions proposed here are generated from the search for the understanding of three connecting threads: Youth and Adult Education (YAE), socioeducation, and the intersection between these two. To do so, we will address education in socioeducation, the schooling of adolescents deprived of their freedom in Brazil, and especially in the state of Amazonas, and the choice of Youth and Adult Education (EJA) in these contexts. Moreover, throughout the discussion, we will observe the incompatibility between the ages of attendance in the socioeducational system and in the EJA, also, the inexistence of evaluation criteria in the process of selection of professionals, that take into consideration the profile, the specific training and qualification to act before the particularities of this public, and of the space in question. After all, systematic and non-systematic education, formal or non-formal, constitutes a preponderant factor in the process of socio-education.Keywords: Socio-Educational system; School education; Youth and Adult Education (YAE).Educación de Jóvenes y Adultos para adolescentes en conflicto con la ley: la educación escolar en la socioeducaciónRESUMENEl objetivo de este estudio es identificar las articulaciones realizadas en el ámbito de la socioeducación para la eficacia de la educación escolar, especialmente en lo que respecta al tipo de modalidad educativa adoptada por las instituciones que llevan a cabo las medidas socioeducativas. Las discusiones aquí propuestas se generan a partir de la búsqueda de la comprensión de tres hilos conductores: la Educación de Jóvenes y Adultos (EPJA), la socioeducación y la intersección entre ambas. Para ello, se abordará la educación en la socioeducación, la escolarización de los adolescentes privados de libertad en Brasil, y especialmente a nivel estatal con un enfoque en Amazonas, y la elección de la EJA) en estos contextos. Además, a lo largo de la discusión, observaremos la incompatibilidad entre las edades de atención en el sistema socioeducativo y en la EJA y también la ausencia de criterios de evaluación en el proceso de selección de profesionales, que tengan en cuenta el perfil, la formación específica y la cualificación para actuar ante las particularidades de este público, y el espacio en cuestión. Al fin y al cabo, la educación sistemática y no sistemática, formal o no formal, se constituye como un factor preponderante en el proceso de socioeducación.  Palabras clave: Sistema socioeducativo; Educación escolar. Educación de Jóvenes y Adultos (EPJA).


2016 ◽  
Vol 203 (4) ◽  
pp. 203-214 ◽  
Author(s):  
Yujia Wang ◽  
Clara T. Nicolas ◽  
Harvey S. Chen ◽  
Jeffery J. Ross ◽  
Silvana B. De Lorenzo ◽  
...  

Liver transplantation from deceased or living human donors remains the only proven option for patients with end-stage liver disease. However, the shortage of donor organs is a significant clinical concern that has led to the pursuit of tissue-engineered liver grafts generated from decellularized liver extracellular matrix and functional cells. Investigative efforts on optimizing both liver decellularization and recellularization protocols have been made in recent decades. In the current review, we briefly summarize these advances, including the generation of high-quality liver extracellular matrix scaffolds, evaluation criteria for quality control, modification of matrix for enhanced properties, and reseeding strategies. These efforts to optimize the methods of decellularization and recellularization lay the groundwork towards generating a transplantable, human-sized liver graft for the treatment of patients with severe liver disease.


2017 ◽  
Vol 204 (3-4) ◽  
pp. 125-136 ◽  
Author(s):  
Yujia Wang ◽  
Clara T. Nicolas ◽  
Harvey S. Chen ◽  
Jeffery J. Ross ◽  
Silvana B. De Lorenzo ◽  
...  

Liver transplantation from deceased or living human donors remains the only proven option for patients with end-stage liver disease. However, the shortage of donor organs is a significant clinical concern that has led to the pursuit of tissue-engineered liver grafts generated from decellularized liver extracellular matrix and functional cells. Investigative efforts on optimizing both liver decellularization and recellularization protocols have been made in recent decades. In the current review, we briefly summarize these advances, including the generation of high-quality liver extracellular matrix scaffolds, evaluation criteria for quality control, modification of matrix for enhanced properties, and reseeding strategies. These efforts to optimize the methods of decellularization and recellularization lay the groundwork towards generating a transplantable, human-sized liver graft for the treatment of patients with severe liver disease.


1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.


Author(s):  
J. Temple Black ◽  
William G. Boldosser

Ultramicrotomy produces plastic deformation in the surfaces of microtomed TEM specimens which can not generally be observed unless special preparations are made. In this study, a typical biological composite of tissue (infundibular thoracic attachment) infiltrated in the normal manner with an embedding epoxy resin (Epon 812 in a 60/40 mixture) was microtomed with glass and diamond knives, both with 45 degree body angle. Sectioning was done in Portor Blum Mt-2 and Mt-1 microtomes. Sections were collected on formvar coated grids so that both the top side and the bottom side of the sections could be examined. Sections were then placed in a vacuum evaporator and self-shadowed with carbon. Some were chromium shadowed at a 30 degree angle. The sections were then examined in a Phillips 300 TEM at 60kv.Carbon coating (C) or carbon coating with chrom shadowing (C-Ch) makes in effect, single stage replicas of the surfaces of the sections and thus allows the damage in the surfaces to be observable in the TEM. Figure 1 (see key to figures) shows the bottom side of a diamond knife section, carbon self-shadowed and chrom shadowed perpendicular to the cutting direction. Very fine knife marks and surface damage can be observed.


Author(s):  
M. Ashraf ◽  
F. Thompson ◽  
S. Miki ◽  
P. Srivastava

Iron is believed to play an important role in the pathogenesis of ischemic injury. However, the sources of intracellular iron in myocytes are not yet defined. In this study we have attempted to localize iron at various cellular sites of the cardiac tissue with the ferrocyanide technique.Rat hearts were excised under ether anesthesia. They were fixed with coronary perfusion with 3% buffered glutaraldehyde made in 0.1 M cacodylate buffer pH 7.3. Sections, 60 μm in thickness, were cut on a vibratome and were incubated in the medium containing 500 mg of potassium ferrocyanide in 49.5 ml H2O and 0.5 ml concentrated HC1 for 30 minutes at room temperature. Following rinses in the buffer, tissues were dehydrated in ethanol and embedded in Spurr medium.The examination of thin sections revealed intense staining or reaction product in peroxisomes (Fig. 1).


Author(s):  
J.M. Titchmarsh

The advances in recent years in the microanalytical capabilities of conventional TEM's fitted with probe forming lenses allow much more detailed investigations to be made of the microstructures of complex alloys, such as ferritic steels, than have been possible previously. In particular, the identification of individual precipitate particles with dimensions of a few tens of nanometers in alloys containing high densities of several chemically and crystallographically different precipitate types is feasible. The aim of the investigation described in this paper was to establish a method which allowed individual particle identification to be made in a few seconds so that large numbers of particles could be examined in a few hours.A Philips EM400 microscope, fitted with the scanning transmission (STEM) objective lens pole-pieces and an EDAX energy dispersive X-ray analyser, was used at 120 kV with a thermal W hairpin filament. The precipitates examined were extracted using a standard C replica technique from specimens of a 2¼Cr-lMo ferritic steel in a quenched and tempered condition.


Author(s):  
T. R. Dinger

Zirconia (ZrO2) is often added to ceramic compacts to increase their toughness. The mechanisms by which this toughness increase occurs are generally accepted to be those of transformation toughening and microcracking. The mechanism of transformation toughening is based on the presence of metastable tetragonal ZrO2 which transforms to the monoclinic allotrope when stressed by a propagating crack. The decrease in volume which accompanies this transformation effectively relieves the applied stress at the crack tip and toughens the material; microcrack toughening arises from the deflection of a propagating crack around sharply angular inclusions.These mechanisms, however, do not explain the toughness increases associated with the class of composites investigated here. Analytical electron microscopy (AEM) has been used to determine whether solid solution effects could be the cause of this increased toughness. Specimens of a mullite (3Al2O3·2SiO2) + 15 vol. % ZrO2 were prepared by the usual technique of mechanical thinning followed by ion beam milling. All observations were made in a Philips EM400 TEM/STEM microscope fitted with EDXS and EELS spectrometers.


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