On the Efficacy of Live DDoS Detection with Hadoop

Distributed Denial of Service flooding attacks are one of the biggest challenges to the availability of online services today. These DDoS attacks overwhelm the victim with huge volume of traffic and render it incapable of performing normal communication or crashes it completely. If there are delays in detecting the flooding attacks, nothing much can be done except to manually disconnect the victim and fix the problem. With the rapid increase of DDoS volume and frequency, the current DDoS detection technologies are challenged to deal with huge attack volume in reasonable and affordable response time. In this paper, we propose HADEC, a Hadoop based Live DDoS Detection framework to tackle efficient analysis of flooding attacks by harnessing MapReduce and HDFS. We implemented a counter-based DDoS detection algorithm for four major flooding attacks (TCP-SYN, HTTP GET, UDP and ICMP) in MapReduce, consisting of map and reduce functions. We deployed a testbed to evaluate the performance of HADEC framework for live DDoS detection. Based on the experiments we showed that HADEC is capable of processing and detecting DDoS attacks in affordable time

Craft based assignments of undergraduate textile design students: Multiple case study

Modern textile design education is based on skill and practice. To inculcate the required expertise, contemporary educators used craft-based assignments. Many designers and artists consider designing high-tech products to start with sketching and drawing, paper, and a pencil. The visualization of design is a broad idea. It involves the cognitive critical and technical thinking of the designer. The present study discussed different approaches to visualization and elucidation. Craft based assignment is the foundation of the design process, where undergraduate textile design students experienced design development. The present study is a multi-case study. Data were collected from three assignments in textile design education. It’s a departmental case study where three cases were studies under the supervision of three textile design instructors. The outcomes demonstrated that, through craftsmanship training, the students found perception and explanation methods that were beforehand obscure to them and that they would not have thought of themselves. The study plan focused more on the thought and the outline sentiment than on the subtleties while applying the new strategies. The study shows that rough techniques seem to offer undergraduate textile design students a more robust visualization method and lower their creating threshold. The outcomes may be useful for teachers when planning craft projects that include a complete craft process that promotes undergraduate textile design students’ own creativity and ideas. Through a well-planned craft project, it is possible to combine knowledge of different courses and promote essential skills in overall learning and education

Mandatory obligations under the international counter-terrorism and organised crime conventions to facilitate state cooperation in law enforcement

The UN-sponsored international conventions on terrorism and organised crime deal with a specific type of criminality which spreads across national frontiers. The suppression of these crimes is possible through state cooperation in extradition and mutual legal assistance. Hence, the object of these conventions is to facilitate law enforcement cooperation. To achieve this aim, the conventions have established certain mandatory obligations in order to ensure harmony among the legal systems of states parties with a view to make them conducive to law enforcement cooperation. Harmony is needed to satisfy certain requirements of extradition and mutual legal assistance proceedings which necessitate similarity in the legal systems of the requesting and requested states. These requirements can be classified into distinct categories of conditions and procedure. Conditions refer to conditions associated with the principle of reciprocity or exchange of comparable favours, upon which the laws and treaties on extradition and mutual legal assistance are based. It demands similar legal prescriptions or equivalent conceptions of justice under the laws of the requesting and requested state with respect to the act concerning which surrender or interrogation is sought. To enable the parties to satisfy conditions, the international conventions impose mandatory obligations to implement their rules concerning jurisdiction, criminalisation and fair treatment. Procedure implies the procedure of applying or executing the enforcement devices of aut dedere aut judicare and confiscation of the proceeds of crime. The application of both these devices necessitates similarity in the laws of the requesting and requested states with respect to procedure of enforcement. Similarity is needed to ensure that a foreign request may not be refused due to the requested state lacking enabling procedural rules or the request not being consistent with its procedural law. To establish similarity, the conventions impose mandatory obligations to implement the mechanisms of aut dedere aut judicare and confiscation of the proceeds of crimes. This thesis critically examines the impact of these obligations on state cooperation in bringing to justice transnational offenders. The central argument of the thesis is that the mandatory obligations under the counter-terrorism and organised crime conventions are required to be implemented in accordance with and, to the extent permissible, under the national law of state parties. Accordingly, when they are translated domestically, they do not achieve a level of harmony, sufficient to facilitate the fulfilment of the requirements of extradition and mutual legal assistance, i.e. ‘double conditions’ and procedural similarity needed to enforce aut dedere aut judicare and confiscation. Resultantly, discretion rests with the requested state to grant or refuse cooperation depending upon its political and diplomatic relations with the requesting state. This contradicts the objective of facilitating law enforcement cooperation in the specific context of borderless or transnational crimes. Following this approach, state cooperation concerning transnational crimes remains as discretionary and as unregulated as cooperation in regard to ordinary crimes. This calls into question the utility of reliance on mandatory obligations as tools to facilitate law enforcement cooperation. As an alternative, some bilateral/regional treaties and domestic laws adopt the strategy of relaxing ‘double conditions’ and simplifying the procedure of applying aut dedere aut judicare and confiscation. This strategy also aims at facilitating law enforcement cooperation; however, it takes the route of regulating the requirements of extradition and mutual legal assistance rather than harmonising national justice systems to make them conducive to their demands. Given that this system carries greater potential for facilitating law enforcement cooperation, this thesis recommends that the makers of the international counter-terrorism and organised crime conventions should substitute or complement the mandatory obligations with it. Significantly, states have, by agreeing not to apply political and fiscal offence exception to extradition and interrogation proceedings involving these crimes, shown their willingness to accept this approach of facilitating law enforcement cooperation in the specific context of transnational crimes

SOLITARY FIBROUS TUMOR OF BREAST

Solitary fibrous tumours (SFTs) are fibroblastic mesenchymal tumour primarily identified in the pleura but are now being reported in other anatomic sites as well. SFT is generally characterised as a radiologically confined neoplasm composed of a proliferated spindle cells arranged in patternless manner. Intervening tissue shows prominent haemangiopericytoma-like vessels. Stroma is usually fibrous. Tumour is positive for CD34. SFT has a specific translocation representing fusion NAB2 with STAT6 genes. This translocation can be highlighted with very good specificity and sensitivity using STAT6 immunohistochemical stain. Some cases of SFTs have also been described in the breast. Rarely, SFT can show aggressive behaviour. SFT enters the differential diagnoses of benign and malignant spindle cell tumours of breast and it is, therefore, important that its clinical, radiological and pathological features are known to clinicians and diagnosticians. Key words: CD34, myofibroblastoma, NAB2-STAT6, solitary fibrous tumou

No One Left Behind? Comparing Poverty and Deprivation between People with and without Disabilities in the Maldives

The 2030 Sustainable Development Goals call for the disaggregation of all indicators by disability and other characteristics so as to “leave no one behind” from development progress. Data on disability, however, is acknowledged to be lacking, which is essential for informing policy and planning. Consequently, this study estimates the prevalence of disability in the Maldives and compares indicators of poverty and living conditions between people with and without disabilities, using nationally-representative, population-based data (n = 5363). The prevalence of disability was estimated at 6.8%. Overall, this research finds that people with disabilities are at risk of being left behind from progress across multiple Sustainable Development Goal domains, including in combatting income poverty, food insecurity and exclusion from health, education, work and social participation, and vulnerability to violence. Further, amongst people with disabilities, people with cognitive and mental health impairments, people living outside the capital, Male’, and children and working-age adults tend to face the highest levels of deprivation.</jats:p

HYPOFRACTIONATED RADIOTHERAPY IN GLIOBLASTOMA MULTIFORME

Purpose: The purpose of this study was to assess the outcomes in glioblastoma patients treated with hypofractionated radiotherapy.Materials and Methods: We reviewed all glioblastoma patients treated at our specialist cancer centre over 7 and a 1⁄2 years using hypofractionated radiotherapy (HRT) postoperatively. The HRT regimen was 48 Gy given at 3 Gy/ fractions in 16 fractions. We calculated overall survival using time to event analyses. Results: A total of 62 patients were identi ed of whom 44 (71%) were male. The median age of these patients was 50 years (range: 20–71 years). Eastern Cooperative Oncology Group (ECOG) performance status was 0 in 47 (76%) and 1 in 15 (24%) patients. 7 (11%) of the patients underwent gross total resection, 52 (83%) had subtotal resection and 3 (5%) had a biopsy only. Response assessment on magnetic resonance imaging at 3-month post-HRT showed that 14 (22%) patients had regression, 21 (34%) were stable and 22 (35%) had a progressive primary tumour. 5 (8%) patients were lost to follow up. With a median follow-up of 7.8 months, the median overall survival was 9 months. Patients with ECOG-0 showed a median survival of 7 months as compared to 6 months for those with ECOG-1. Patients with stable or partial response showed a median overall survival of 8 months in comparison to 6 months for those with progressive disease. There were no signi cant differences in median survival based on the extent of surgery. A Cox multivariate model con rmed signi cant correlation of age and response to radiotherapy with survival. Conclusion: HRT consisting of 48 Gy in 3 weeks can be used for selected glioblastoma patients to reduce the overall treatment time of conventional radiotherapy by 35–40% without apparent increased toxicity or decrement in survival in a low resource environment. Key words: Chemoradiation, glioblastoma, hypofractionated radiotherapy, survival

Energy Efficiency in Transportation along with the Belt and Road Countries

China’s huge investment in the “belt and road initiative” (BRI) may have helped improve the economic level of participating countries, but it may also be accompanied by a substantial increase in greenhouse gas (GHG) emissions. The BRI corridors aim to bring regional stability and prosperity. In such efforts, energy efficiency due to increased transport has been overlooked in the recent literature. This paper employed a data envelopment analysis of the slack-based measurement (SBM) for bad output to assess the transport energy efficiency of 19 countries under the BRI economic corridors. By using the most cited transport-related input variables, such as vehicles, labor, motor oil, jet fuel, and natural gas, this study first analyzes the transport energy efficiency by first assuming the output variables individually and then takes two years as a pre- and post-BRI case by considering the aggregated output model. The results show an increase in economic activity but a decline in transport energy efficiency in terms of consumption and emissions

Sub-categorization of Pediatric Small Round Blue Cell Tumors using Immunohistochemistry

Introduction: The category of Small Round Blue Cell Tumors includes neoplasms that are undifferentiated and contain similar-looking growth of small round blue cells having bigger nuclear size as compared to the cytoplasm (high N/C). It includes Non-Hodgkins Lymphoma, Synovial Sarcoma, Ewings Sarcoma/ Primitive Neuroectodermal Tumor, Rhabdomyosarcoma, Hepatoblastoma, Retinoblastoma, Neuroblastoma, Neuroendocrine carcinoma, Nasopharyngeal Carcinoma, Desmoplastic Small Round Cell Tumor, Dysgerminoma, and Wilm's tumor. Immunohistochemistry can be very helpful in the accurate diagnosis of this diverse group of tumors. Objective: The objective of the study is to sub-categorize pediatric malignant small round blue cell tumors using immunohistochemistry. Study design: Descriptive cross-sectional studySetting: Meezan private lab, Faisalabad, PakistanDuration of study: 4 years, from January 2017 to December 2020.Sample size: 46 cases.Sampling technique: Non-probability purposive samplingMaterials and Methods: 46 cases, which fulfilled the inclusion and exclusion criteria were selected for the study. All these cases were subjected to immunohistochemistry. The IHC technique used was based on the Peroxidase anti-peroxidase (PAP) method. Based on site and morphological clues, initially Leukocyte common antigen (LCA), Myogenin, Cytokeratin (CK), Desmin, Chromogranin, Neuron Specific Enolase (NSE), S-100, Smooth Muscle Actin (SMA), and CD99 were used. Further immune stains panels were used afterward, as and when needed like CD20, CD3, CD30, BCL2, CD117, Ki-67, Tdt, Synaptophysin, SMA, CD56, Melan A, HMB45, and WT1.Results: Among all the malignant Small Round Cell Tumors, Rhabdomyosarcoma was the highest in frequency i.e. 8 (17.4%), followed by Ewing’s sarcoma/PNET 7(15.2%). Both Diffuse Large B cell lymphoma and Neuroblastoma were 5 each in number (10.9%). Non-Hodgkins lymphoma as a whole was 13 (28.2%), including 5 cases (10.9%) of diffuse large B cell lymphoma, 4 cases (8.7%) of T lymphoblastic lymphoma, 3 cases (6.5%) of Burkitt’s lymphoma, and only 1 case (2.2%) of NK/T cell lymphoma.Conclusion: Immunohistochemistry is an essential tool for accurate sub-categorization of pediatric small round blue cell tumors

Sub-categorization of Pediatric Small Round Blue Cell Tumors using Immunohistochemistry

Introduction: The category of Small Round Blue Cell Tumors includes neoplasms that are undifferentiated and contain similar-looking growth of small round blue cells having bigger nuclear size as compared to the cytoplasm (high N/C). It includes Non-Hodgkins Lymphoma, Synovial Sarcoma, Ewings Sarcoma/ Primitive Neuroectodermal Tumor, Rhabdomyosarcoma, Hepatoblastoma, Retinoblastoma, Neuroblastoma, Neuroendocrine carcinoma, Nasopharyngeal Carcinoma, Desmoplastic Small Round Cell Tumor, Dysgerminoma, and Wilm's tumor. Immunohistochemistry can be very helpful in the accurate diagnosis of this diverse group of tumors. Objective: The objective of the study is to sub-categorize pediatric malignant small round blue cell tumors using immunohistochemistry. Study design: Descriptive cross-sectional studySetting: Meezan private lab, Faisalabad, PakistanDuration of study: 4 years, from January 2017 to December 2020.Sample size: 46 cases.Sampling technique: Non-probability purposive samplingMaterials and Methods: 46 cases, which fulfilled the inclusion and exclusion criteria were selected for the study. All these cases were subjected to immunohistochemistry. The IHC technique used was based on the Peroxidase anti-peroxidase (PAP) method. Based on site and morphological clues, initially Leukocyte common antigen (LCA), Myogenin, Cytokeratin (CK), Desmin, Chromogranin, Neuron Specific Enolase (NSE), S-100, Smooth Muscle Actin (SMA), and CD99 were used. Further immune stains panels were used afterward, as and when needed like CD20, CD3, CD30, BCL2, CD117, Ki-67, Tdt, Synaptophysin, SMA, CD56, Melan A, HMB45, and WT1.Results: Among all the malignant Small Round Cell Tumors, Rhabdomyosarcoma was the highest in frequency i.e. 8 (17.4%), followed by Ewing’s sarcoma/PNET 7(15.2%). Both Diffuse Large B cell lymphoma and Neuroblastoma were 5 each in number (10.9%). Non-Hodgkins lymphoma as a whole was 13 (28.2%), including 5 cases (10.9%) of diffuse large B cell lymphoma, 4 cases (8.7%) of T lymphoblastic lymphoma, 3 cases (6.5%) of Burkitt’s lymphoma, and only 1 case (2.2%) of NK/T cell lymphoma.Conclusion: Immunohistochemistry is an essential tool for accurate sub-categorization of pediatric small round blue cell tumors