315 research outputs found

    Effect of high pressurized sterilization on oil palm fruit digestion operation

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    Sterilization and digestion are two important steps in the palm oil milling process prior to oil extraction. After sterilization, palm fruitlets are stripped and then fed into a digester where the fruitlets are heated with atmospheric pressure steam to soften and loosen the mesocarp fiber. The effect of different pressures of sterilization on digestion operation needs to be investigated. To convey better understanding of the process, several tests were performed on the fruitlets sterilized under different sterilization conditions, i.e., 40 and 70 psi. Oil released, sludge formation and water absorption during the digestion process were analyzed. It was found that fruitlets sterilized at 70 psi contained more sugar content in the condensate due to more hydrolyzed sterilized fruit. It was also found that fruit sterilized at higher pressure released more oil into the condensate and absorbed more water

    Advanced Gastric Cancer in a Young Patient

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    Gastric cancer remains the second most common cancer in the world, and is usually found in men, especially those over 50 years of age. The diagnosis is made by endoscopic biopsy. The high frequency of late diagnosis or advanced stages accounts for the overall poor prognosis for this tumor. Surgery is the most frequently employed modality for both cure and palliation. However, most patients present with advanced disease that is incurable. We reported a rare case of young female patient aged 23 years old with advanced gastric carcinoma. The main clinical features were epigastric discomfort, vomiting, and weight loss. An abdominal mass was palpable on physical examination. Endoscopy showed a giant tumor mass causing gastric outlet obstruction, nodular lesion, ulcerative and hemorrhagic. The histopathologic examination revealed mucinous gastric carcinoma. Palliative resection could not be performed because the tumor tightly adhered to adjacent structures. Jejunostomy was performed to allow enteral nutrition. Best supportive care is very important to improve the quality of life

    Colonic Tuberculosis and Chronic Diarrhea

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    We describe that often colonic tuberculosis remains unsuspected prior to surgery. We therefore draw attention to pitfalls in the diagnosis and review the literature on the diagnostic modalities available to diagnose the disease. Today, the prompt diagnosis of an unknown gastroenteritis process involves colonoscopy. Using a fiberscope, a procedure with instantaneous return can be carried out. Patients with clinical presentation suggestive of colonic tuberculosis should have had either an aggressive diagnostic work out using high-yield tests or anti tuberculosis therapy

    Hematochezia in Patient with Colorectal Polyps

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    More than 95% colorectal cancers arise from neoplastic adenomatous polyps (adenomas). The Malignant potential of polyps depends on size, amounts, histological type and degree of dysplasia. The prevalence of adenoma increases with age. Patient whose age more than 40 years old with rectal bleeding as presenting symptom should never be ascribed solely to coexisting haemorrhoids without a through evaluation of the colon and rectum. We reported a case of hematochezia due to colorectal polyps with coexisting hemorrhoids as suspected bleeding source. Colonoscopy examination demonstrated colorectal adenomatous polyps in rectum and sigmoid. Polypectomy was done and tissue biopsy Result was tubular adenoma with mild dysplasia

    Modification of Capacitive Charge Storage of TiO2 with Nickel Doping

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    For practical deployment of supercapacitors characterized by high energy density, power density and long cycle life, they must be realized using low cost and environmentally benign materials. Titanium dioxide (TiO2) is largely abundant in the earth's crust; however, they show inferior supercapacitive electrochemical properties in most electrolytes for practical deployment. In this paper, we show that nickel doped TiO2 (Ni:TiO2) nanowires developed by electrospinning showed five times larger capacitance (∼200 F g−1) than the undoped analogue (∼40 F g−1). Electrochemical measurements show that the Ni:TiO2 nanowires have 100% coulombic efficiency. The electrodes showed no appreciable capacitance degradation for over 5000 cycles. The superior charge storage capability of the Ni:TiO2 could be due to its high electrical conductivity that resulted in five orders of magnitude higher ion diffusion as determined by cyclic voltammetry and electrochemical impedance spectroscopy measurements

    Diseases in Chronic Non-infective Diarrhea

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    Background: Chronic diarrhea is common in Indonesia. The chronic non-infective diarrhea cases seem to be increasing recently. The aim of this study is to reveal the pattern of diseases that can cause chronic non-infective diarrhea. Methods: We examined all patients suffering from chronic non-infective diarrhea over a six years period. The patients underwent physical examination and performed laboratory tests, colon enema X-ray, colonoscopy, ileoscopy, upper gastrointestnal endoscopy and small bowel X-ray. Result: Chronic non-infective diarrhea was observed in 107 (51.7%) cases from 207 chronic diarrhea cases respectively. The frequently found abnormalities that had caused chronic non-infective diarrhea were carbohydrate maldigestion (62.61%), colorectal cancer (14.01%), Crohn's disease (11.21%), ulcerative colitis (9.34%), irritable bowel syndrome (8.41%), colorectal polyp (8.41%) etc. Conclusion: The most frequent abnormality found in chronic non-infective diarrhea was maldigestion

    Abnormalities of the Small Bowel in Chronic Non-Infective Diarrhea: a Histopathological Study

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    Background: The incidence of chronic non-infectious diarrhea cases is increasing in line with the developments of medical technology and science. The objective of this study was to uncover the histopathologic abnormalities of the small bowel in cases of chronic non-infectious diarrhea. Methods: All chronic non-infectious diarrhea patients in Cipto Mangunkusumo Hospital from 1996 until 2000 were included in this study. For the control group, we used 37 endoscopically-normal patients with functional dyspepia with the same characteristics (sex and age). All of the patients underwent gastroduodeno-jejunoscopic and ileocolonoscopic examinations. Patients with infection were excluded from this study. Biopsies were taken from the duodenal bulb, descending duodenum, jejunum near the Treitz ligament, terminal ileum, and colon. Histopathological tests were performed on all of the biopsies. Result: Histopathological examination was carried out on 31 patients and 37 control patients. In the duodenal bulb, the width of villi, lymphocyte infiltration, eosinophil infiltration, stage of inflammation, and polymorphonuclear cells infiltration were all lower in the chronic non-infectious diarrhea group than in the control group (p < 0.01). In the descending part of duodenum and jejunum, lymphocyte infiltration, the stage of inflammation, and polymorphonuclear cell infiltration were found to be higher in the chronic non-infectious diarrhea group than in the control group (p< 0.01). Within the terminal ileum, lymphocyte infiltration, the stage of inflammation and lymphoid follicle hyperplasia were found to be higher in the chronic non-infectious diarrhea group than in the control group (p< 0.01). Conclusion: Histopathologically, increased lymphocyte infiltration, inflammation and lymphoid follicle hyperplasia were discovered in specified areas of small intestine in chronic non-infectious diarrhea patients

    The Incremental Cooperative Design of Preventive Healthcare Networks

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    This document is the Accepted Manuscript version of the following article: Soheil Davari, 'The incremental cooperative design of preventive healthcare networks', Annals of Operations Research, first published online 27 June 2017. Under embargo. Embargo end date: 27 June 2018. The final publication is available at Springer via http://dx.doi.org/10.1007/s10479-017-2569-1.In the Preventive Healthcare Network Design Problem (PHNDP), one seeks to locate facilities in a way that the uptake of services is maximised given certain constraints such as congestion considerations. We introduce the incremental and cooperative version of the problem, IC-PHNDP for short, in which facilities are added incrementally to the network (one at a time), contributing to the service levels. We first develop a general non-linear model of this problem and then present a method to make it linear. As the problem is of a combinatorial nature, an efficient Variable Neighbourhood Search (VNS) algorithm is proposed to solve it. In order to gain insight into the problem, the computational studies were performed with randomly generated instances of different settings. Results clearly show that VNS performs well in solving IC-PHNDP with errors not more than 1.54%.Peer reviewe

    Interdisciplinary Approach for Salvaging a Carious Multirooted teeth: A Case Report

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    Hemisection denotes sectioning of root with its accompanying crown portion of molars.The outcomes is predictable and success rates are high. In this case report a 29 year old male patient with severe class-III furcation involvement of mandibular molar, which was treated with hemisection and restoration followed by fixed prosthodontic prosthesis
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