516 research outputs found

    Esports analytics on PlayerUnknown's Battlegrounds player placement prediction using machine learning

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    PUBG (PlayerUnknown’s Battlegrounds) is a video game that has become popular in the past year. This paper aims to predict the placement of PUBG players during the match by detecting the influential features set that can impact the outcome of the PUBG game and build the best prediction model using a machine learning approach. In this study, the dataset is taken from Kaggle, which has 29 attributes that are categorized into one label (winPlacePerc). The training set has divided into five sets with each set has 6000 instances. The decision tree regression model was applied to find the optimum prediction. Other regression models such as Linear Regression and Support Vector Machine are also utilized to compare with the decision tree model’s result. Based on the result analysis, the walkDistance feature was deemed as the most significant factor influencing the results of a PUBG game. Furthermore, there are other common features obtained from the five datasets that represent the crucial factors which are boosts, DBNOs, killPlace, kills, rideDistance and matchDuration. From the three regression models, the Support Vector Machine model built on the significant features has the best performance in terms of RMSE value while the Decision Tree Regression model has the fastest prediction speed among these regression models

    Androgen-induced cerebral venous sinus thrombosis in a young body builder: case report

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    BACKGROUND: Cerebral venous sinus thrombosis is an infrequent disease with a variety of causes. Pregnancy, puerperium, contraceptive pills and intracranial infections are the most common causes. The patient may present with headache, focal neurological deficits and seizures. The clinical outcome is highly variable and treatment with heparin is advised. CASE PRESENTATION: The patient is a 22 year old male who presented with headache, repeated vomiting and papilledema. He was a bodybuilder doing exercise since 5 years ago, who had used nandrolone decaonoate 25 milligrams intramuscularly during the previous 5 months. Brain MRI and MRV showed superior sagital and transverse sinus thrombosis and extensive investigations did not reveal any known cause. CONCLUSIONS: We suggested that androgen was the predisposing factor in our patient. Androgens may increase coagulation factors or platelet activity and cause arterial or venous thrombosis. As athletes may hide using androgens it should be considered as a predisposing factor for thrombotic events in such patients

    Characteristics associated with quality of life among people with drug-resistant epilepsy

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    Quality of Life (QoL) is the preferred outcome in non-pharmacological trials, but there is little UK population evidence of QoL in epilepsy. In advance of evaluating an epilepsy self-management course we aimed to describe, among UK participants, what clinical and psycho-social characteristics are associated with QoL. We recruited 404 adults attending specialist clinics, with at least two seizures in the prior year and measured their self-reported seizure frequency, co-morbidity, psychological distress, social characteristics, including self-mastery and stigma, and epilepsy-specific QoL (QOLIE-31-P). Mean age was 42 years, 54% were female, and 75% white. Median time since diagnosis was 18 years, and 69% experienced ≥10 seizures in the prior year. Nearly half (46%) reported additional medical or psychiatric conditions, 54% reported current anxiety and 28% reported current depression symptoms at borderline or case level, with 63% reporting felt stigma. While a maximum QOLIE-31-P score is 100, participants’ mean score was 66, with a wide range (25–99). In order of large to small magnitude: depression, low self-mastery, anxiety, felt stigma, a history of medical and psychiatric comorbidity, low self-reported medication adherence, and greater seizure frequency were associated with low QOLIE-31-P scores. Despite specialist care, UK people with epilepsy and persistent seizures experience low QoL. If QoL is the main outcome in epilepsy trials, developing and evaluating ways to reduce psychological and social disadvantage are likely to be of primary importance. Educational courses may not change QoL, but be one component supporting self-management for people with long-term conditions, like epilepsy

    Removing orientation-induced localization biases in single-molecule microscopy using a broadband metasurface mask

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    Nanoscale localization of single molecules is a crucial function in several advanced microscopy techniques, including single-molecule tracking and wide-field super-resolution imaging. Until now, a central consideration of such techniques is how to optimize the precision of molecular localization. However, as these methods continue to push towards the nanometre size scale, an increasingly important concern is the localization accuracy. In particular, single fluorescent molecules emit with an anisotropic radiation pattern of an oscillating electric dipole, which can cause significant localization biases using common estimators. Here we present the theory and experimental demonstration of a solution to this problem based on azimuthal filtering in the Fourier plane of the microscope. We do so using a high-efficiency dielectric metasurface polarization/phase device composed of nanoposts with subwavelength spacing. The method is demonstrated both on fluorophores embedded in a polymer matrix and in dL5 protein complexes that bind malachite green

    The ecology of outdoor rape: The case of Stockholm, Sweden

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    The objective of this article is to report the results of an ecological study into the geography of rape in Stockholm, Sweden, using small area data. In order to test the importance of factors indicating opportunity, accessibility and anonymity to the understanding of the geography of rape, a two-stage modelling approach is implemented. First, the overall risk factors associated with the occurrence of rape are identified using a standard Poisson regression, then a local analysis using profile regression is performed. Findings from the whole-map analysis show that accessibility, opportunity and anonymity are all, to different degrees, important in explaining the overall geography of rape - examples of these risk factors are the presence of subway stations or whether a basomraĚŠde is close to the city centre. The local analysis reveals two groupings of high risk of rape areas associated with a variety of risk factors: city centre areas with a concentration of alcohol outlets, high residential population turnover and high counts of robbery; and poor suburban areas with schools and large female residential populations where subway stations are located and where people express a high fear of crime. The article concludes by reflecting upon the importance of these results for future research as well as indicating the implications of these results for policy

    The effectiveness of tourism development in social cultural approach in Sabah

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    The generation of the national economy also lists the tourism industry as one of the sectors that need to be taken into consideration, primarily through social-cultural that has its characteristics to attract foreign tourists to visit the state of Sabah. This research study was conducted to investigate and evaluate the effectiveness of tourism development on social-cultural in Sabah. This research uses a quantitative approach, where questionnaires are the main instrument in collecting data in Sabah. The questionnaire format’s structure is divided into two, namely, part A (focused on the demographic profile) and part B (concentrate on the cultural-social approach in tourism development in Sabah). The study sample was a total of 74 respondents, and the questionnaire was distributed randomly in the tourist focus area of Kota Kinabalu. The analysis used is descriptive and correlational. The findings of the study indicate that the majority of cultural variables and social variables are centered on a positive curve (or towards the right), where most respondents think that local government programs and activities help a lot in understanding the cultural-social importance of the tourism sector. In addition, the uniqueness and privilege of cultural-social tourism, such as through clothing, food, wedding events, dance, etc., can play a significant role in the development of tourism. In conclusion, cultural social tourism should be the main theme not only for the generation of the national economy but also crucial in the preservation and conservation of the continuity of Sabah's local cultural-social tourism characteristics, which should be preserved in their originality forever rather than being outdated by the era of modernization

    Pulpal sequelae after trauma to anterior teeth among adult Nigerian dental patients

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    <p>Abstract</p> <p>Background</p> <p>Epidemiological studies show that about 11.6% to 33.0% of all boys and about 3.6% to 19.3% of all girls suffer dental trauma of varying severity before the age of 12 years. Moderate injuries to the periodontium such as concussion and subluxation are usually associated with relatively minor symptoms and hence may go unnoticed by the patient or the dentist, if consulted. Patients with these kinds of injuries present years after a traumatic accident most of the time with a single discoloured tooth. This study sets out to document the incidence of various posttraumatic sequelae of discoloured anterior teeth among adult Nigerian dental patients.</p> <p>Methods</p> <p>One hundred and sixty eight (168) traumatized discoloured anterior teeth in 165 patients were studied. Teeth with root canal treatment were excluded from the study. Partial obliteration was recorded when the pulp chamber or root canal was not discernible or reduced in size on radiographs, total obliteration was recorded when pulp chamber and root canal were not discernible. A retrospective diagnosis of concussion was made from patient's history of trauma to the tooth without abnormal loosening, while subluxation was made from patient's history of trauma to the tooth with abnormal loosening.</p> <p>Results</p> <p>Of the 168 traumatized discoloured anterior teeth, 47.6% and 31.6% had partial and total obliteration of the pulp canal spaces respectively, 20.8% had pulpal necrosis. Concussion and subluxation injuries resulted more in obliteration of the pulp canal space, while fracture of the teeth resulted in more pulpal necrosis (p < 0.001). Injuries sustained during the 1<sup>st </sup>and 2<sup>nd </sup>decade of life resulted more in obliteration of the pulp canal space, while injuries sustained in the 3<sup>rd </sup>decade resulted in more pulpal necrosis.</p> <p>Conclusion</p> <p>Calcific metamorphosis developed more in teeth with concussion and subluxation injuries. Pulpal necrosis occurred more often in traumatized teeth including fractures.</p

    Holographic Vitrification

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    We establish the existence of stable and metastable stationary black hole bound states at finite temperature and chemical potentials in global and planar four-dimensional asymptotically anti-de Sitter space. We determine a number of features of their holographic duals and argue they represent structural glasses. We map out their thermodynamic landscape in the probe approximation, and show their relaxation dynamics exhibits logarithmic aging, with aging rates determined by the distribution of barriers.Comment: 100 pages, 25 figure
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