Clonda Bohn Ellis

Clonda Ellis, Class of 1947, who majored in Piano and minored in Band, was a member of Sigma Alpha Iota. This was recorded during the weekend of Homecoming at IWU

A Comparison between Physico-Chemical Characteristics of the Degraded Palm Oil by Chicken Nuggets Coated with Sweet Pepper and Hot Pepper

Palm oil was selected from varieties of vegetable oils used in the food industry (especially in the food industry of "Fast Food") proved to be an oil with properties that can be maintained within acceptable limits for use after a reasonable time highly dependent on the type of food processed. It is known that frying is the most widely used process for the preparation of food both in the home and in industrial scale. The preference for this method of preparation of the food is due to the fact that it is a quick and convenient method from the point of view of time / output, and the food unique sensory properties, color, texture, consistency, taste and flavor are very popular with consumers. Degraded samples of the oils were analysed to ascertain the psysicochemical caracteristics (density, refractive index, acid and saponification values and percentage of water) in comparison to the blank samples. The determinations conducted revealed elevated parameters due to the degradation compounds in the analysed samples

A Panorama on Multiscale Geometric Representations, Intertwining Spatial, Directional and Frequency Selectivity

The richness of natural images makes the quest for optimal representations in image processing and computer vision challenging. The latter observation has not prevented the design of image representations, which trade off between efficiency and complexity, while achieving accurate rendering of smooth regions as well as reproducing faithful contours and textures. The most recent ones, proposed in the past decade, share an hybrid heritage highlighting the multiscale and oriented nature of edges and patterns in images. This paper presents a panorama of the aforementioned literature on decompositions in multiscale, multi-orientation bases or dictionaries. They typically exhibit redundancy to improve sparsity in the transformed domain and sometimes its invariance with respect to simple geometric deformations (translation, rotation). Oriented multiscale dictionaries extend traditional wavelet processing and may offer rotation invariance. Highly redundant dictionaries require specific algorithms to simplify the search for an efficient (sparse) representation. We also discuss the extension of multiscale geometric decompositions to non-Euclidean domains such as the sphere or arbitrary meshed surfaces. The etymology of panorama suggests an overview, based on a choice of partially overlapping "pictures". We hope that this paper will contribute to the appreciation and apprehension of a stream of current research directions in image understanding.Comment: 65 pages, 33 figures, 303 reference

Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

Background Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide.Methods A multimethods analysis was performed as part of the GlobalSurg 3 study-a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital.Findings Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3.85 [95% CI 2.58-5.75]; p<0.0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63.0% vs 82.7%; OR 0.35 [0.23-0.53]; p<0.0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer.Interpretation Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised

Automatic thalamic labeling for image guided neurosurgery

In the treatment of Parkinson's disease some cases require the ablation of a specific region in the basal ganglia. The accurate localization of this region inside the patient's brain is essential and because direct visual anatomical information for such deep brain structures is not available, the surgeon has to rely on other sources of information such as MRI, CT and x-ray of the patient's brain. However these imaging techniques do not provide sufficient anatomical information, requiring the use of a subcortical brain atlas book to assist in the localization of the different structures. This way of proceeding is cumbersome and results in a certain lack of accuracy in the localization of the different brain structures.We developed a method that aids the surgeon to obtain the sufficient anatomical information in a simpler and more accurate manner. We provide him with a segmentation of the patient's MRI scan based on the Schaltenbrand and Wahren subcortical atlas. To achieve such segmentation a volumetric version of the atlas was obtained and was then mapped to a model brain MRI using landmark matching. Using an automated tool for the three-dimensional registration of two MRI volumes the deformation transformation between the model brain MRI and the patient's brain MRI was obtained. By applying this same transformation to the volumetric atlas, we obtain a superposition of a volumetric subcortical atlas onto the MRI of the patient's brain in the stereotactic space. This method results in a more accurate localization of the surgical lesion, thus reducing the number of additional interventions which are often necessary when the results of the first procedure are shown to be unsatisfactory. The whole guidance system is now used routinely at the Montreal Neurological Institute and is part of the standard surgical procedure

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Time domain OCT in galvano-ceramic fixed partial prostheses investigations

Introduction. The technologic procedures to realise galavano-ceramic fxed partial dentures can lead to aeric inclusions, at various depths in the ceramic layers. These material defects could initiate partial or total fractures in the esthetic parts of the dentures with the detachment of these from the infrastructure. The aim of this study was to use a non-invasive method in order to analize galvano-ceramic fxed partial dentures. Method and the material. Twenty-three units galvano-ceramic fxed dentures have been used for this study (fg.1, 2). 250 slices at an interval of 20 microns each have been created for each investigation. The OCT system employed in this investigation was the one using the 1300 mm wavelength. Results. As a result of OCT investigation of the galvano-ceramic fxed partial prosthesis, various material imperfections of the ceramic mass, situated at the cervical areea, with different volumes and forms, have been identifed. 3D reconstructions were developed from bidimensional image slices. Conclusions. In conclusion, the optical coherent tomography is a non-invasive technique that permits the detection of structural imperfections in the galvano-ceramic fxed partial prosthesis

Bayesian spatio-temporal approach for EEG source reconstruction: conciliating ECD and distributed models.

Characterizing the cortical activity sources of electroencephalography (EEG)/magnetoencephalography data is a critical issue since it requires solving an ill-posed inverse problem that does not admit a unique solution. Two main different and complementary source models have emerged: equivalent current dipoles (ECD) and distributed linear (DL) models. While ECD models remain highly popular since they provide an easy way to interpret the solutions, DL models (also referred to as imaging techniques) are known to be more realistic and flexible. In this paper, we show how those two representations of the brain electromagnetic activity can be cast into a common general framework yielding an optimal description and estimation of the EEG sources. From this extended source mixing model, we derive a hybrid approach whose key aspect is the separation between temporal and spatial characteristics of brain activity, which allows to dramatically reduce the number of DL model parameters. Furthermore, the spatial profile of the sources, as a temporal invariant map, is estimated using the entire time window data, allowing to significantly enhance the information available about the spatial aspect of the EEG inverse problem. A Bayesian framework is introduced to incorporate distinct temporal and spatial constraints on the solution and to estimate both parameters and hyperparameters of the model. Using simulated EEG data, the proposed inverse approach is evaluated and compared with standard distributed methods using both classical criteria and ROC curves