Two-stage Joint Transductive and Inductive learning for Nuclei Segmentation

AI-assisted nuclei segmentation in histopathological images is a crucial task in the diagnosis and treatment of cancer diseases. It decreases the time required to manually screen microscopic tissue images and can resolve the conflict between pathologists during diagnosis. Deep Learning has proven useful in such a task. However, lack of labeled data is a significant barrier for deep learning-based approaches. In this study, we propose a novel approach to nuclei segmentation that leverages the available labelled and unlabelled data. The proposed method combines the strengths of both transductive and inductive learning, which have been previously attempted separately, into a single framework. Inductive learning aims at approximating the general function and generalizing to unseen test data, while transductive learning has the potential of leveraging the unlabelled test data to improve the classification. To the best of our knowledge, this is the first study to propose such a hybrid approach for medical image segmentation. Moreover, we propose a novel two-stage transductive inference scheme. We evaluate our approach on MoNuSeg benchmark to demonstrate the efficacy and potential of our method.Comment: 5 page

Existence result for a class of stochastic quasilinear partial differential equations with non-standard growth

In this dissertation, we investigate a very interesting class of quasi-linear stochastic partial differential equations. The main purpose of this article is to prove an existence result for such type of stochastic differential equations with non-standard growth conditions. The main difficulty in the present problem is that the existence cannot be easily retrieved from the well known results under Lipschitz type of growth conditions [42].Dissertation (MSc)--University of Pretoria, 2010.Mathematics and Applied Mathematicsunrestricte

Service and inventory model for maintenance workshop in the short cycle operation region: Agent-based simulation approach

Tools used in the North Sea region has a high cycle and come very often to maintenance workshop to be checked, repaired if needed and prepared for the next operations. The availability of spare parts at the workshop plays a significant role to keep the flow time as short as possible and meet such high-cycle operations. Supplying spare parts from the best-cost countries to the North Sea region with about one-year lead time makes the situation more critical and the economic order quantity and reorder point need to be found. However, having inventory at the workshop and ordering a batch of spare parts increases operational expenditures. Moreover, frequent supplies increase the environmental impacts of shipping CO2 and spare scrap rates, whereas repairing the used spare parts and reusing them again can offer a more sustainable solution. Therefore, the purpose of this paper is to develop a simulation model that can quantify the cost and benefits of reusing repaired spares compared to supplying newly built spares from the best-cost countries. To achieve this purpose, a case study has been implemented on a specific maintenance workshop within the North Sea region and the entire tool repair and spare part supply operations are conceptualized and modelled with the help of the simulation modelling approach. Two scenarios have been simulated: (1) the maintenance workshop fully depends on supplying newly built spares from the best-cost countries with no inventory stock or spare reuse, and (2) the Maintenance workshop is primarily dependent on repaired spares with an optimal level of spares stock. The simulation results, from the studied case, support the second scenario where a repair path cycle is introduced to the maintenance workshop, as a 78% reduction in lead times, a 116% improvement in worker utilization, a 73% reduction in crowding levels, a 52% reduction in scrap rate, and a potential profit increase of roughly three million NOK (20%). Therefore, it can be concluded that a local repair service is required to keep maintenance workshops in high-cycle regions at high-performance levels.publishedVersio

EFFECTS CLASS OBESE I, II, III HOUSEWIFES ON THE SYSTEM CARDIO-RESPIRATORY CAPACITY

The goals of this study are to find ways to determine the risks cardiovascular and respiratory capacity in class obese I, II, III housewife based on them adaptation to effort. Since obesity has reached epidemic as levels in cholesterol fractions, and triglyceride as risk factors of metabolic health track into adulthood which confirmed that the body physical fitness has a significant modifying effect on other risk factors as cardiovascular disease. Our role is to expose the impact of the class obesity on the level fitness to health. In order to achieve this objective, in one hand we have chosen the Ruffier-Dickson index and Maximum Heart Rate which are safe bet in the sports medical baseline budget. On the other hand, our sample was selected by intentional method represented by 30 women; their homogeneity was calculate based on age ≤ 27, BMI≥ 35,77 and Questionnaire Physical Activity Rating (PA-R) from Non-Exercise Data and Non-Exercise Fitness Test. Our entire sample selected that prefer staying at home. In order to classify our sample, we have selected the BMI classification system for adults Programs and Health Survey for England which classed our sample in three categories obesity I, II and III. For the statistical processing, we based on Mean, SD, Correlation Paired Samples, Anova and LSD to determine the effect of overweight on the both cardio-respiratory capacity failure between the three classes in active exercise as our safe test. Based on the analyses statistics we confirm: - is a strong positive relationship between the increase BMI and the level of the variables selected in this study; - Class Body Composition reveals the weaker skeletal muscle function, decreases cardiorespiratory capacity and the low fitness aerobics ability; - Class Body Composition predict the weaken cardio respiratory capacity related to the combination of “respiratory rate and airway narrowing” which lead to fatigue of the muscles of ventilation.  Article visualizations

Sorghum responses to different forms of Tilemsi rock phosphate combined with soluble fertilizers in a low-input production system in Mali

The deficiency in bioavailable phosphorus is one of the major constraints to cereal production in Mali. The objective of this study was to assess the combined effects of Tilemsi rock phosphate (PNT) with different doses of soluble fertilizers on the solubility of rock phosphate, the agronomic performance of sorghum and the chemical properties of the soil. The study consisted of the comparison of four (4) types of fertilization at three (3) levels of variation 0 kg.ha-1; 11 kg.ha-1, and 16 kg.ha-1 of phosphorus arranged in a complete randomized block with three replicates. The combination of PNT with sulfate ammonium (NH4) 2SO4 resulted in a significant increase in grain and biomass yields during the two years of the study. The increase of the rate of phosphate rock application lead to improve the sorghum grain yield by an average of 29%. The combined application of sulfate ammonium (NH4) 2SO4 with PNT significantly increased the phosphorus uptake indices from PNT. These results show that there is a possibility of improving the productivity of sorghum in Mali with the combined use of Tilemsi rock phosphate and soluble fertilizers, particularly sulfate ammonium. La déficience en phosphore assimilable du sol est l’une des contraintes majeures à la production céréalière au Mali. L’objectif de cette étude est d’évaluer les effets de différentes formules de fumures à base du phosphore naturel de tilemsi (PNT) et d’engrais azotés et potassiques sur les propriétés chimiques du sol et les performances agronomiques du sorgho. Pour ce faire, un dispositif factoriel en blocs complètement randomisés a été implanté. Le premier facteur est composé des 4 formules de fumures (PNT granule (P), PNT granule avec KCl , PNT granule avec (NH4)2SO4 et PNT granule avec KCl et (NH4)2SO4 ) et le second facteur les niveaux de doses de phosphore (0 kg.ha-1; 11 kg.ha-1, et 16 kg.ha-1). L’association du PNT avec le sulfate d’ammonium (NH4)2SO4 a entraîné une augmentation significative des rendements grain et biomasse pendant les deux annéesd’étude. L’augmentation de la dose d’apport du phosphore a amélioré le rendement grain de 29% en moyenne. L’application combinée du sulfate d’ammonium (NH4)2SO4 avec le PNT a augmenté significativement l’efficacité agronomique du PNT. Ces résultats montrent qu’il y a une possibilité d’améliorer la productivité du sorgho au Mali avec l’utilisation combinée de phosphore naturel de Tilemsi à la dose de 16 kg.ha-1 et les engrais solubles notamment le sulfate d’ammonium. Ainsi cette formulation pourrait être recommandée en culture de sorgho pour les producteurs à faible revenu en zone Sahélienne du Mali

Schwannome benin primitif retrovesical : une tumeur très rare à propos d'un cas

Le schwannome est une tumeur le plus souvent bénigne, d'origine nerveuse se développant à partir des cellules de la gaine de Schwann. C'est une tumeur très rare tant par sa fréquence que par sa localisation rétrovésicale. L'examen anatomopathologique et immunohistochimique confirme le type histologique ainsi que le caractère bénin ou malin du schwannome. En raison des récidives, et du risque de transformation maligne, l'exérèse doit être complète. Nous rapportons le cas d'un patient âgé de 39 ans, admis pour une douleur pelvienne chronique à type de pesanteur, des signes irritatifs du bas appareil urinaire, et des troubles de transit. L'imagerie (échographie, TDM, IRM) a révélé la présence d'une masse pelvienne rétrovésicale, à paroi fine, latéralisée à gauche, mesurant 68x70x70 mm, exerçant un effet de masse sur la vessie et le sigmoïde. L'intervention chirurgicale menée par une laparotomie médiane a permis l'exérèse d'une masse retrovésicale bien encapsulée. L'examen anatomopathologique et immunohistochimique ont conclu à un schwannome bénin. La récidive et la transformation maligne bien que rare après chirurgie impose une surveillance post opératoire clinique et tomodensitométrique annuelle.Pan African Medical Journal 2016; 2

Collaborative system: higher education search engine

Malaysian universities or colleges has been one of the main attractive educational destinations to foreigners for the last decade. Malaysian educational institutions are recognized in opening doors of knowledge that fulfill student’s lives with skills, awareness and enthusiasm. There are over 20 public universities and 60 private colleges that offer a complete range of programs leading to highly regarded and internationally recognized qualifications. Despite the vast information made available by these institutions on their websites, majority of potential students face challenges in choosing the right program, courses and university that suits their needs. This research study the innovative method which could be developed and leveraged by the educational industries, specifically the Ministry of Higher Education Malaysia (MOHE) in close collaboration with these universities and colleges, in using search engine comparator technology whereby assisting potential students in making selection. The study raises awareness of relevant collaboration initiatives that could be adopted and replicated to facilitate students and parents in making well-informed decision

Large, moderate deviations principle and α-limit for the 2D stochastic LANS-α

Please read abstract in the article.https://www.intlpress.com/site/pub/pages/journals/items/cms/_home/_main/index.phphj2023Mathematics and Applied Mathematic

The unintended consequences of combining equity measures with performance-based financing in Burkina Faso

Background: User fees and poor quality of care contribute to low use of healthcare services in Burkina Faso. The government implemented an innovative intervention that combines equity measures with performance-based financing (PBF). These health equity measures included a community-based selection of indigents to receive user fee exemptions and paying healthcare centres higher purchase prices for services provided to indigents. Research suggests complex interventions can trigger changes not targeted by program planners. To date, however, there is a knowledge gap regarding the unintended consequences that can emerge from combining PBF with health equity measures. Our objective is to document unintended consequences of the equity measures in this complex intervention. Methods: We developed a conceptual framework using the diffusion of innovations theory. For the design, we conducted a multiple case study. The cases were four healthcare facilities in one district. We collected data through 93 semi-structured interviews, informal discussions, observation, as well as intervention documents. We conducted thematic analysis using a hybrid deductive-inductive approach. We also used secondary data to describe the monthly evolution of services provided to indigent and non-indigent patients before and after indigent cards were distributed. Time series graphs were used to validate some results. Results: Local actors, including members of indigent selection committees and healthcare workers, re-invented elements of the PBF equity measures over which they had control to increase their relative advantage or to adapt to implementation challenges and context. Some individuals who did not meet the local conceptualization of indigents were selected to the detriment of others who did. Healthcare providers believed that distributing free medications led to financial difficulties and drug shortages, especially given the low purchase prices and long payment delays. Healthcare workers adopted measures to limit free services delivered to indigents, which led to conflicts between indigents and providers. Ultimately, selected indigents received uncertain and unequal coverage. Conclusions: The severity of unintended consequences undermined the effectiveness and equity of the intervention. If the intervention is prolonged and expanded, decision-makers and implementers will have to address these unintended consequences to reduce inequities in accessing care

Unintended consequences of community verifications for performance-based financing in Burkina Faso

To address the shortcomings of Performance-Based Financing (PBF) verifications within facilities, two types of verifications are conducted at the community level. These community verifications couple a community survey with a client satisfaction survey to determine whether the patients reported in the medical registers exist, and if so, whether they received the services declared and are satisfied with services provided. Unintended consequences arose as the study intervention unfolded over time: worker overload; fear of retaliation from healthcare workers; loss of patient confidentiality; marital issues; falsification of records. Results highlight the need to be skeptical of high performance scores for community verifications