336 research outputs found
Probabilistic models for mining imbalanced relational data
Most data mining and pattern recognition techniques are designed for learning from at data files with the assumption of equal populations per class. However, most real-world data are stored as rich relational databases that generally have imbalanced class distribution. For such domains, a rich relational technique is required to accurately model the different objects and relationships in the domain, which can not be easily represented as a set of simple attributes, and at the same time handle the imbalanced class problem.Motivated by the significance of mining imbalanced relational databases that represent the majority of real-world data, learning techniques for mining imbalanced relational domains are investigated. In this thesis, the employment of probabilistic models in mining relational databases is explored. In particular, the Probabilistic Relational Models (PRMs) that were proposed as an extension of the attribute-based Bayesian Networks. The effectiveness of PRMs in mining real-world databases was explored by learning PRMs from a real-world university relational database. A visual data mining tool is also proposed to aid the interpretation of the outcomes of the PRM learned models.Despite the effectiveness of PRMs in relational learning, the performance of PRMs as predictive models is significantly hindered by the imbalanced class problem. This is due to the fact that PRMs share the assumption common to other learning techniques of relatively balanced class distributions in the training data. Therefore, this thesis proposes a number of models utilizing the effectiveness of PRMs in relational learning and extending it for mining imbalanced relational domains.The first model introduced in this thesis examines the problem of mining imbalanced relational domains for a single two-class attribute. The model is proposed by enriching the PRM learning with the ensemble learning technique. The premise behind this model is that an ensemble of models would attain better performance than a single model, as misclassification committed by one of the models can be often correctly classified by others.Based on this approach, another model is introduced to address the problem of mining multiple imbalanced attributes, in which it is important to predict several attributes rather than a single one. In this model, the ensemble bagging sampling approach is exploited to attain a single model for mining several attributes. Finally, the thesis outlines the problem of imbalanced multi-class classification and introduces a generalized framework to handle this problem for both relational and non-relational domains
Dual Ectopic Thyroid: A Case Report
Background: Ectopic thyroid gland is an uncommon disorder in which thyroid tissue is located along the line of migration, dual ectopic thyroid is a rare entity where parts of the gland are located in two different locations
Case: A 14-year-old girl presented with dysphagia and odynophagia of six years duration with worsening of two weeks. Physical exam showed tongue base mass. Imaging revealed two enhancing masses at the tongue base and inferior to the hyoid bone. A diagnosis of dual ectopic thyroid was made.
Conclusion: Dual ectopic thyroid is a rare occurrence and proper diagnosis is essential for proper management
Pemanfaatan Limbah Batu Marmer Sebagai Pengganti Agregat Kasar Pada Campuran Aspal Beton Terhadap Karakteristik Marshall
PEMANFAATAN LIMBAH BATU MARMER SEBAGAI PENGGANTI AGREGAT KASAR PADA CAMPURAN ASPAL BETON TERHADAP KARAKTERISTIK MARSHALLThe Implementation Of Stone Marble Waste For Changer The Aggregate Rough To Mix Aplhalt Concrete Characteristics Of MarshalAndi Syaiful Amal1 & Chairil Saleh21,2Jurusan Teknik Sipil – Fakultas Teknik Univ. Muhammadiyah MalangAlamat Korespondensi : Jl. Raya Tlogomas No. 246 Malang 65144Email : [email protected] waste of marble stone is waste produced when manufactured processing of unused marble. The utilization of marble for road ossification material is one way to alleviate that waste of marble stone. The purpose of this research is finding out the advantage of marble stone waste as replacement of crude aggregate partly toward marshall characteristic on mixture of the concrete asphalt layer (Laston). Laston mixture with marble stone waste as replacement of crude aggregate used variation of 5%, 10%, 15%, 20%, 25%, 30% and 35%. The result is ascertainable that using of marble stone waste is able to increase the marshall characteristic. The best laston mixture is produced content optimum of marble stone waste 17,5%, The laston mixture produced : marshall stability 1050 kg, marshall quotient 2,5 KN/mm, volume air void 4,5 % and film thickness 8,8 mm.Keyword : Laston Mixture, Marble Stone Waste, Marshall CharacteristicAbstrakLimbah batu marmer merupakan limbah yang dihasilkan pada saat proses pengolahan batu marmer yang tidak dimanfaatkan. Pemanfaatan limbah batu marmer untuk material perkerasan jalan adalah salah satu cara untuk mengurangi limbah batu marmer tersebut. Penelitian ini bertujuan untuk mengetahui manfaat limbah batu marmer sebagai pengganti agregat kasar terhadap karakteristik marshall pada campuran laston. Campuran laston dengan limbah batu marmer sebagai pengganti agregat kasar menggunakan variasi 5%, 10%, 15%, 20%, 25%, 30%, dan 35%. Hasil penelitian ini diketahui bahwa penggunaan limbah batu marmer dapat meningkatkan karakteristik Marshall. Campuran laston terbaik dengan limbah batu marmer sebagai pengganti agregat kasar dihasilkan kadar limbah batu marmer optimum 17,5%, menghasilkan campuran laston : marshall stability 1050 kg, marshall quotient 2,5 KN/mm, volume air void 4,5 % dan film thickness 8,8 mm
Impact of Covid-19 Vaccine on Male Seminal Fluid Paramerters
This study was specifically designed to investigate the potential negative impact of COVID-19 vaccination on semen parameters (SFA) in a cohort of fertile men.
Methods: 93 fertile vaccinated with2 doses of different covid19 vaccine (Pfizer, astrazenica, and sinopharm). The comparison of seminal fluid analysis parameters pre and post vaccination is the axis of study.
Results: sperm concentration was statistically significant (main changes in Pfizer group). insignificant difference to other semen parameter.
Conclusion: COVID-19 vaccine not impact semen fluid analysis parameters. So, most be not withheld men desiring fertility who meet criteria for vaccination
The Relationship of Body Mass Index and Some Physical and Motor Abilities, and Percentage of their Contribution to the Digital Level of Short Distances among Junior Athletics Course Students
This study aimed to know the correlation of body mass index and some physical and motor abilities and the percentage of their contribution to the digital level of short distance competitions for junior athletics course students.And this was done on a sample of (61) students from athletics courses, where the best time was taken (35) students for a distance of (100m), and the time of (26) students for a distance of (200m), and using the appropriate statistical analysis through the (SPSS) program.The Results of the study showed the existence of a strong statistically significant correlation for the variables of transitional speed, flexibility of the trunk muscles, explosive force of the muscles of the legs, length of the lower limb and the digital level of the competition (100 m) of sample, as well as the existence of a medium correlation for the strength characteristic of speed, and the absence of a relationship Statistically significant correlation to body mass index, and the results also showed a strong, statistically significant correlation for the flexibility variable of the trunk muscles and the numerical level of the competition (200 m), and a medium negative correlation for the body mass index and strength characteristic of speed, but it is not statistically significant, and the results also showed that the transitional speed came The highest percentage of contribution in the digital level of the competition (100m), followed by the flexibility of the muscles of the trunk, then the explosive force of the muscles of the legs, and the flexibility of the muscles of the trunk formed the highest percentage of the contribution of the digital level of the competition (200m)
Effect of Cd and Pb on growth, certain antioxidant enzymes activity, protein profile and accumulation of Cd, Pb and Fe in Raphanus sativus and Eruca sativa seedlings
ABSTRACT Seedlings of Raphanus sativus and Eruca sativa were grown in pots containing acid-washed soil and irrigated with every 3 days for 4 weeks nutrient solution based on one-fifth Long Ashton solution containing 50, 100 and 200 ppm of Cd and Pb concentrations. Measurements of plant height, fresh and dry weights, chlorophyll contents, electrophoteric patterns of proteins, oxidative enzymes activity (Ascorbic acid oxidase and peroxidase) and accumulation of Cd, Pb and Fe were evaluated in seedlings of both plants. It was found that, increased supply of Cd and Pb significantly increased fresh and dry weights and significantly decreased plant height in both Raphanus sativus and Eruca sativa. Total chlorophyll content was increased with increasing Cd and Pb concentration in both two plants studied. Treatment with Cd and Pb at all concentrations increased significantly peroxidase and ascorbic acid oxidase activity. Low concentrations of Cd and Pb decreased polypeptide concentration in both Raphanus sativus and Eruca sativa compared with the control. Also, increasing two heavy metals concentration resulted in the appearance of new protein bands. It was also noticed that, increasing Cd and Pb concentration in nutrient solution significantly increased uptake and accumulation of these two heavy metals in Raphanus sativus and Eruca sativa. Accumulation of Fe in the two studied plants was significantly decreased with increasing supply of Cd and Pb. From the above results, it could be concluded that, Raphanus sativus and Eruca sativa possess the ability to tolerate and accumulate toxic metals. Also, it was suggested that, Raphanus sativus and Eruca sativa used as metal-scavenging plants for contaminated soils
The Relationship of the Grip Strength of the Aiming Arm to Weight, Some Special Characteristics Physical Abilities, and the Numerical Level of the Effectiveness of the Shot Put and the Javelin Throwing for novice students
The study aimed to identify the relationship of the grip strength of the aiming arm with weight, some special characteristics, physical capabilities, and the numerical level of the two events of shot put and javelin throwing among junior athletics students. The researcher used the descriptive approach to suit the nature of the study. Physical tests, special measurements and the distance of the digital performance level for the shot put and javelin actions were performed,The Results showed that there is a moderate correlation between grip strength and (arm length, upper arm circumference, and burst strength of the arms) and the absence of a relationship to grip strength and weight, and the results also showed a strong correlation indicative of grip strength and the digital level of shot thrust, and the presence of a correlation relationship. Medium between force of fist and digital javelin, but it is not statistically significant, and the results also showed the existence of a moderate relationship to explosive force, bearing force for arms, and the digital level of shot and throwing javelin, but it is not statistically significant. The researcher recommends the necessity of conducting studies on the subject of grip strength and its relationship to the athletic performance of various related sports and for different age groups
FACTORS ASSOCIATED WITH HYPERTENSION PREVALENCE AND CONTROL AMONG LEBANESE TYPE 2 DIABETIC PATIENTS
Objective: The objectives of this study were to assess the prevalence of hypertension and the level of blood pressure (BP) control among a cohort of diabetic Lebanese patients on antihypertensive medications, as well as to identify factors associated with hypertension prevalence and uncontrolled BP.Methods: This cross-sectional retrospective study was conducted in a tertiary health care clinic that is specialized in the management and follow-up of diabetic outpatients.Results: Among the 700 type 2 diabetes mellitus patient files that were screened529 (75%) were found to have hypertension. Hypertension was more prevalent in women, patients aged ≥65-year-old, and those having a body mass index (BMI) of ≥30 (kg/m2) (p-value<0.05). Among the hypertensive cohort, 465 T2DM were on antihypertensive medications and were included in the hypertension control analysis. Ninety-three patients (20%) attained BP control (SBP<140 and DBP<90 mmHg). Multivariate analyses revealed three factors that were significantly associated with uncontrolled BP control: Age being ≥65 y (adjusted OR = 1.96 (95% CI: 1.07–3.61, p-value<0.05), male gender (adjusted OR = 2.57, 95% CI: 1.41–4.66, p-value<0.05) and uncontrolled HDL (adjusted OR = 1.58, 95% CI: 1.33–2.01, p-value = 0.05). Conclusion: Hypertension is prevalent among the study patients. However, attainment of BP control was poor among these patients. Therefore, there is a need for studies that determine reasons behind this low BP control rate in order to design interventions aiming at improving the standard of care for these patients
Analisa Kinerja Ruas Jalan Panglima Sudirman Singosari-Malang
Highways are transportation infrastructure that is very important in supporting land transportation. Without being matched by an increase in road infrastructure, it will result in an excessive load on the road structure and will cause congestion. Congestion is one of the problems that is often experienced or encountered, congestion occurs due to the large number of vehicles that exceed the capacity of the road so that it affects road performance. Based on the network pattern seen during holidays or weekends, access to and from the Malang City area tends to increase. Road side barriers that occur on Commander Sudirman street, Singosari are one of the causes of traffic jams. This research aims to provide an alternative plan in overcoming the problem of traffic jams on Commander Sudirman street, Singosari. The method used in this research was based on the 1997 Indonesian Highway Capacity Manual (MKJI), as well as data collection using direct observation methods in the field and then followed by collecting primary data and secondary data. From the research results, the vehicle volume of 2320.6 pcu/hour and degree of saturation (DS) of 0.80 with a level of service (LOS) class D. So it is necessary to divert the route for heavy vehicles (HV) that pass through Commander Sudirman street in the direction of Malang - Surabaya to be diverted via Tumapel street, Ronggowuni street and Kertanegara street, then return to street main route, while for vehicles from Surabaya to Malang that will cross Commander Sudirman street with heavy vehicle types (HV) will follow the current road diversion, namely crossing Rogonoto street, Kebon Agung street, Watu Gede street, and Stasiun street then returning. to the main road as well as installing signs prohibiting parking in the Singosari market shopping area which is on Commander Sudirman street. From the results of this treatment the DS value became 0.76
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