157 research outputs found
Framework for Product Recommandation for Review Dataset
In the social networking era, product reviews have a significant influence on the purchase decisions of customers so the market has recognized this problem The problem with this is that the customers do not know how these systems work which results in trust issues. Therefore a different system is needed that helps customers with their need to process the information in product reviews. There are different approaches and algorithms of data filtering and recommendation .Most existing recommender systems were developed for commercial domains with millions of users. In this paper we have discussed the recommendation system and its related research and implemented different techniques of the recommender system
The Regenerative Effect of Intra-Articular Injection of Autologous Fat Micro-Graft in Treatment of Chronic Knee Osteoarthritis
The study started in 2010 to find the effect of autologous fat micrograft for osteoarthritis (OA); the result was published on normal animal’s model, in 10 patients, then in 80 patients with knee osteoarthritis, and the current study in 205 patients. The study was conducted at King Abdulaziz University Hospital (January 2012–October 2015); 80 adult patients were suffering from moderate to severe knee osteoarthritis. About 10–20 mL fat micrograft was prepared with liposuction and injected intra-articularly into the affected knee/s. The results revealed that pain improvement after the fat injection during rest and with activity with the visual analogue scale. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) indicated improvement, both in the three domains (pain, stiffness, and physical function) and in total. The use of intra-articular autologous fat micrograft is simple, safe, and effective for degenerative knee osteoarthritis
Proton Elastic Scattering and Neutron Distribution of Unstable Nuclei
We study theoretically how we can determine the neutron density distributions
of unstable nuclei from proton elastic scattering. We apply the relativistic
impulse model to study the sensitivities of the observables to the density
distributionswhich are expressed in Woods-Saxon form. We find that the both
radius and diffuseness of densities can be determined from restricted elastic
scattering data in principle. We think this result is helpful to design future
experiments.Comment: 22 pages, 9 ps figures, Late
Physicochemical characteristics and pollen spectrum of some north-east Algerian honeys.
The qualities of seventeen honey samples harvested from the North-East areas of Algeria were evaluated by determining the pollen spectrum, pollen number quantity and physicochemical attributes. Pollen analysis can therefore be useful to determine the geographical and botanical origin of honeys. The following determinations were carried out: pH, density, acidity (free, lactone and total), moisture, electrical conductivity, hydroxymethylfurfural, diastase activity, apparent sucrose, and proteins.The results obtained in the present study show the variability of chemical composition of the honey samples. It proved that nine natural honeys are of blossoming origin; suitable for consumption and that one (T5 conferred Bougous) can be used with fine dietetics, it is very rich in pollen which is regarded as protein source. The remainder, eight honeys, were not in conformity with the International Regulatory Standards, their sugar contents (Sucrose) and hydroxymethylfurfural exceeded the InternationalRegulatory Standards Review by the International Honey Commission, this was probably due to use of syrup for the over-feeding the bees during the spring. The sample Bouhachana (G1) had high water content (more than 20%), low density and electrical conductivity higher than 5 μS/cm, which makes it likely to undergo fermentation and degradation. Honeys of Guerguour (T1), Boutheldja (T2) and Bouhadjar (T3) had pH lower than the European standards concerning the quality control of the foodstuffs (exp. honey). These samples are fragile; so we cannot preserve them for a long period. The palynological analysis (qualitative and quantitative) of the harvested samples in the area, showed the absence of a honey obtained from only one melliferous plant. All honeys are polyfloral exits of theseveral plant species visited by the worker bees during their blossoming periods. Three families are the most represented in the groups of pollen of accompaniment (the secondary pollen ranged between 16-45%) and the pollen considered as rare (minor pollen 3-15%) in the counted total number of the pollen grains in 10 grams of honey. These forager honey families are: Myrtaceae presented by the Eucalyptus, Papilionaceae presented by Hedysarum coronarium which is a forager plant characterized by a very vast surface of development, and Rosaceae represented byorchard and forest species.The pollen grain number counted in honeys is very significant (between 80 000 and 24 832 000pollen grain), what makes it possible to classify the samples analyzed among the categories rich in pollen
Production of Acacia auriculiformis A. Cunn. ex Benth. for reforestation in southern Benin
The viability of Acacia auriculiformis production system in southern Benin was studied from an analytical perspective combining the production techniques and the financial profitability. The driving research question was as follows: "Will the nurseries be able to supply the seedlings suited to successful reforestation programmes?" A survey was carried out among nursery holders in the Atlantique Department. The snowball sampling method enabled to survey 55 nursery holders, based on semi-structured interviews. Respondents provided data on the organisation of production, production techniques, production costs, and sales revenues. There were two types of nurseries: individual nurseries and collective nurseries. The stages of acacia seedlings production were as follows: seed collection, dormancy breaking, sowing, and cares for young seedlings. Overall, the production techniques used by nursery holders were effective. The net revenue for 1000 seedlings ranged between XOF 9000 and 26000. Collective nurseries had lower production costs, hence higher revenues, compared to individual nurseries. It is essential to support nursery holders through capacity strengthening training and the availability of good quality seeds
Administrative Bullying and its Impact on the Female Work Environment in the Kingdom of Saudi Arabia
The aim of the study is to provide proposed mechanisms for the treatment of administrative bullying in educational institutions in light of modern administrative trends, through the following: 1 Explain and clarify concepts related to administrative bullying and its practices in the administrative environment. 2 Management bullying practices in the working environment of different institutions. 3 Provide proposed mechanisms for the treatment of administrative bullying in the light of modern administrative trends. The researchers used the descriptive survey method, and the researchers designed a questionnaire to answer the second question of the practices of bullied leaders in the work environment, while the first and third questions were referred to the various sources of information from books, studies and scientific reports. The study community consist of higher education employees. The results found that bullies practice authoritarianism in a variety of verbal and non-verbal ways with an average calculation of 4.2, Where the phrase (tyranny in opinion got the highest average account (4.5). The study proposed a remedy to reduce administrative bullying in the light of modern management trends such as the application of business relations strategies and management by roaming and the application of knowledge management, industrial intelligence and leadership selection
Indications et Resultats de la ThyroĂŻdectomie dans les Hopitaux Saheliens, Experience des Services de Chirurgie Generale et Viscerale a Propos de 422 (Niger)
L’objectif de ce travail était de décrire les principales indications et résultats des thyroïdectomies dans deux hôpitaux de références du Niger.
Patients/Méthodes : Nous avions réalisé une étude rétrospective et prospective sur 5 ans et 6 mois dans les services de chirurgie générale et digestive de l’HGR et HNN. Elle concernait les patients des deux sexes et sans limite d’âge ayant bénéficiés d’une chirurgie pour pathologie thyroïdienne pendant la période d’étude.
Résultats : une fréquence de thyroïdectomie de 4,18% était retrouvée soit chez 422 patients. Le sexe féminin prédominait avec un sexe ratio de 0,12. La tranche d’âge de 32 à 47 ans était la plus concernée (45,8%) avec un âge moyen de 44,3 ans. Le goitre hétéro-multinodulaire constituait la principale indication de la thyroïdectomie (50,10%). 85,16 % des patients avaient consulté pour une tuméfaction cervicale antérieure. L’échographie avait montré une thyroïde hétérogène dans 236 cas (64,69%.). Le principal acte chirurgical était la thyroïdectomie totale avec 308 cas soit 73,17%. La thyroïdectomie vidéo-assistée représentait 0,94% (un cas) des actes chirurgicaux. En postopératoire, la principale complication était la paralysie récurrentielle avec 2,13 % (n=9) et à moyen terme c’était l’hypocalcémie avec 1,18 % (n=5). Les résultats d’anatomie pathologie avait confirmé qu’il s’agissait d’une pathologie bénigne dans plus de la majorité des cas (55,2%, N=233). Aucun décès n’avait été enregistré pendant la période d’étude.
Conclusion :
La pathologie thyroïdienne est fréquente, le geste chirurgical le plus réalisé est la thyroïdectomie totale et il existe peu de complications.
Introduction: Report main indication and result of thyroidectomy at the General Hospital of Reference and National Hospital.
Methods: We did a retrospective study over 5 years and 6 months of 422 cases in the general and digestive surgery departments of the RGH and HNN. It concerned patients of both sexes without age limit who had undergone surgery for thyroid pathology during the period of our study.
Results: A frequency of thyroidectomy was 4.18%. Females predominated with a sex ratio of 0.12 and the age group 32-47 years was the most concerned with a mean age of 44.3 years. Heteromultinodular goiter was the main indication for thyroid surgery (50.10%), in our series 85.16% of patients had consulted for anterior cervical swelling. The main surgical procedure was total thyroidectomy with 308 cases or 73.17%. Video-assisted thyroidectomy represented 0.94% of the surgical procedures. The recurrent laryngeal nerve was dissected and seen in 381 cases or 89.93%. In the immediate postoperative period, the main complication was dysphonia with 2.13% (n=9) and in the médium term it was hypocalcemia with 7.34% (n=31). Anatomical pathology results confirmed that it was a benign pathology in the majority of cases (55.2%). No deaths had been recorded.
Conclusion: Thyroid pathology is common; the most performed procedure is total thyroidectomy. The main complications recorded were dominated by recurrent paralysis, compressive hematoma and transient hypocalcemia. the most common malignant tumor was the papillary carcinoma
SĂntesis, caracterizaciĂłn y evaluaciĂłn de 1-monoacilgliceroles de ácidos grasos insaturados como potenciales lĂpidos bioactivos
The synthesis of 1-monoacylglycerols of selected unsaturated fatty acids and their antimicrobial and cytotoxicity activity is reported in the present study. The monoacylglycerols of fatty acids like undecenoic, oleic, linoleic and erucic acids were prepared by chemical esterification with solketal followed by deprotection. Fatty acids like alpha linolenic, gamma linolenic and ricinoleic acids were initially isolated from natural sources and further enriched in their respective methyl ester forms. The monoacylglycerols of ricinoleic and linolenic acid methyl esters were prepared by enzymatic transesterification with solketal using lipase from Candida antarctica followed by deprotection. The synthesized 1-monoacylglycerols were purified and characterized by spectral studies. The antimicrobial activity revealed that the monoacylglycerol of gamma linolenic acid was the most effective antibacterial followed by the monoacylglycerols of undecenoic and alpha linolenic acids. In the cytotoxicity assay against five cell lines, all the monoacylglycerols exhibited moderate activity but the activity was best against MCF7 Human Breast Adenocarcinoma cell lines.La sĂntesis de 1-monoacilgliceroles de ácidos grasos insaturados seleccionados y su actividad antimicrobiana y citotoxicidad se describen en el presente estudio. Los monoacilgliceroles de ácidos grasos como los ácidos undecenoico, oleico, linoleico y erĂşcico se prepararon mediante esterificaciĂłn quĂmica con solketal seguido de desprotecciĂłn. Los ácidos grasos como el alfa-linolĂ©nico, gamma-linolĂ©nico y ricinoleico se aislaron inicialmente de fuentes naturales y se enriquecieron aĂşn más en sus respectivos Ă©steres metĂlicos. Los monoacilgliceroles de los Ă©steres metĂlicos de los ácidos ricinoleico y linolĂ©nico se prepararon mediante transesterificaciĂłn enzimática con solketal utilizando lipasa de Candida antárctica seguido de desprotecciĂłn. Los 1-monoacilgliceroles sintetizados se purificaron y caracterizaron mediante estudios espectrales. La actividad antimicrobiana mostrĂł que el monoacilglicerol del ácido gamma-linolĂ©nico fue el antibacteriano más eficaz seguido del monoacilglicerol de los ácidos undecenoico y alfa-linolĂ©nico. En el ensayo de citotoxicidad contra cinco lĂneas celulares, todos los monoacilgliceroles mostraron una actividad moderada, pero la actividad fue mejor contra las lĂneas celulares de adenocarcinoma de mama humano MCF7
Effects of yellow mealworm larvae (Tenebrio molitor) and turmeric powder (curcuma) on laying hens performance, physical and nutritional eggs quality
peer reviewedSoybean meal is the main source of protein in laying hens’ diet that is generally imported. This study aims to explore the yellow mealworm larvae (Tenebrio molitor) “TM”, and curcuma effects on laying hens’ performances, and physical and nutritional eggs quality. One hundred laying hens were divided randomly into 4 groups. The first group (Control) received a standard commercial diet (SCD), while test groups (TM, TP, and TM-TP) received SCD with respectively 5% TM, 0.50 % curcuma, and 5% TM and 0.50% curcuma. According to the results, Control and TM reduced significantly hen’s bodyweight in the experiment end. However, the curcuma incorporation and TM (TP and TM-TP) kept the stability of bodyweight during the whole period. No effect of diet was observed on feed intake and egg laying rate. Diet had a significant effect on eggs physical parameters (weight, freshness, thickness and rupture force). The mixture of TM and curcuma permitted eggs with good physical parameters. For nutritional quality of eggs, all groups had the same content of ALA and DHA. However, eggs of group receiving a mixture of TM and curcuma had the lowest cholesterol content. Thus, TM and curcuma could reduce soybean importation dependence with improving eggs quality
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