34 research outputs found

    Detection of Lying Electrical Vehicles in Charging Coordination Application Using Deep Learning

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    The simultaneous charging of many electric vehicles (EVs) stresses the distribution system and may cause grid instability in severe cases. The best way to avoid this problem is by charging coordination. The idea is that the EVs should report data (such as state-of-charge (SoC) of the battery) to run a mechanism to prioritize the charging requests and select the EVs that should charge during this time slot and defer other requests to future time slots. However, EVs may lie and send false data to receive high charging priority illegally. In this paper, we first study this attack to evaluate the gains of the lying EVs and how their behavior impacts the honest EVs and the performance of charging coordination mechanism. Our evaluations indicate that lying EVs have a greater chance to get charged comparing to honest EVs and they degrade the performance of the charging coordination mechanism. Then, an anomaly based detector that is using deep neural networks (DNN) is devised to identify the lying EVs. To do that, we first create an honest dataset for charging coordination application using real driving traces and information revealed by EV manufacturers, and then we also propose a number of attacks to create malicious data. We trained and evaluated two models, which are the multi-layer perceptron (MLP) and the gated recurrent unit (GRU) using this dataset and the GRU detector gives better results. Our evaluations indicate that our detector can detect lying EVs with high accuracy and low false positive rate

    Multiple Sclerosis Care in Pakistan; Analysis Of Data Presented At First Paktrims Conference

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    Novel data on Multiple Sclerosis (MS) in Pakistan from leading institutes in the country was presented at the first Pakistan Treatment in Multiple Sclerosis (PAKTRIMS) Conference, organized by the section of Neurology, department of Medicine, Aga Khan University, Karachi on Saturday, December 18, 2021. Pakistan has been considered to have a low prevalence of MS; however, recent research reveals that it is not as uncommon as previously believed to be in the country. The true prevalence and incidence of MS in the country is unknown because of dearth of research. Data of MS patients enrolled in various private and public institutes in Pakistan highlights the current treatment offered in Pakistan for MS patients with steroids as the mainstay treatment and disease modifying therapy (DMT) mainly including azathioprine, ocrelizumab and rituximab. Available data featuring disease progression indicates a successful response to the treatment offered to patients with improved expanded disability status scale (EDSS) and radiological findings. The conference was a stepping stone towards future research in Pakistan as it has highlighted further requirements in the field of MS as far as our country is concerned. Available data majorly outlines demographic and disease characteristics, however, there is a need for research to fill in the gap for data in reporting MS diagnosis, treatment, and disease outcome to develop a better healthcare system geared towards MS patients in a low- and middle-income Country (LMIC)

    Localised Skin Hyperpigmentation as a Presenting Symptom of Vitamin B12 Deficiency Complicating Chronic Atrophic Gastritis

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    Vitamin B12 deficiency is common in developing countries and should be suspected in patients with unexplained anaemia or neurological symptoms. Dermatological manifestations associated with this deficiency include skin hyper- or hypopigmentation, angular stomatitis and hair changes. We report a case of a 28-year-old man who presented to the Sultan Qaboos University Hospital in Muscat, Oman, in November 2013 with localised hyperpigmentation of the palmar and dorsal aspects of both hands of two months’ duration. Other symptoms included numbness of the hands, anorexia, weight loss, dizziness, fatigability and a sore mouth and tongue. There was no evidence of hypocortisolaemia and a literature search revealed a possible B12 deficiency. The patient had low serum B12 levels and megaloblastic anaemia. An intrinsic factor antibody test was negative. A gastric biopsy revealed chronic gastritis. After B12 supplementation, the patient’s symptoms resolved. Family physicians should familiarise themselves with atypical presentations of B12 deficiency. Many symptoms of this deficiency are reversible if detected and treated early

    Islamic concept of drugs and rehabilitation: its compatibility with Maldivian legal framework

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    Islamic law is the law of Allah Taala, which governs all aspects of Muslims' lives, whether religious, administrative, judicial, social, or personal. According to Islamic law, Muslims are required to be of sound mind at all times. Therefore, a drug user isconsidered to be someone who is not living in accordance with the prescribed ways of Islam. Drug addiction is a chronic disease with harmful consequences, but the compulsive and difficult-to-control nature of drugs causes an addict to use drugs constantly. Due to the seriousness of the disease, this study aims to determine the position of drug addiction in Islamic law. In order to achieve this, a qualitative study was conducted in which data was collected through library research. Further analysis is conducted from different perspectives to examine the compatibility of Islamic laws with the Maldivian rehabilitation system. The study found that the Maldivian rehabilitation system is compatible with Islamic law

    Studies on Some Indian Aphelinid Parasites (Hymenoptera: Chalcidoidea)

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    Volume: 75Start Page: 164End Page: 16
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