Syed Jaffry - Academia.edu (original) (raw)

Papers by Syed Jaffry

Case Reports in Urology

A 79-year-old gentleman presented to the Emergency Department (ED) with catheter-related issues o... more A 79-year-old gentleman presented to the Emergency Department (ED) with catheter-related issues on a background of a long-term catheter for previous urinary retention, Hartmann’s procedure for colorectal cancer, and brachytherapy for prostate cancer. A 3-way silicone catheter was placed by ED staff and bladder irrigation commenced. The urine draining following catheterisation was found to be dark and thick, and irrigation fluid was noted to be draining per rectum. CT imaging was performed and demonstrated the catheter tip extending through the posterior wall of the urethra and into the rectum. The patient was admitted under the urology team, and urinary diversion was achieved with a suprapubic catheter. Subsequent imaging demonstrated a periprostatic abscess, which was initially managed with antimicrobial therapy, followed by attempted image-guided drainage. Repeat imaging following a 6-week course of antibiotics failed to show an improvement in the collection. During his inpatient ...

2017 International Multi-topic Conference (INMIC), 2017

Car-following models microscopically express acceleration behavior of an individual driver. There... more Car-following models microscopically express acceleration behavior of an individual driver. There are many car-following models each with its own assumptions. Among these car-following models, Intelligent Driver Model (IDM) has been used and cited extensively by research community. All the models including IDM have been developed with engineering perspective i.e. to reproduce perfect acceleration behavior. This study focuses on development of a humanistic car-following model. We have identified humanistic parameters that have been modeled in IDM from mathematical formulation of the model. In its existing form, parameters of IDM could be assigned arbitrary values from a prescribed range to define different driver profiles. This way, theoretically, infinite driver profiles could be created many of which does not exist in real. Literature of traffic psychology suggests that there are few dominant classes of drivers, which exhibit certain behavioral patterns. These dominant classes are characterized with the help of human personality. In our study, we have modeled a relationship between model of human's personality profile namely Big Five Factors (BFF) and parameters of IDM. The enhanced model let us reproduce individual differences in driving behaviors. The proposed model has been verified using computer simulation to investigate whether proposed humanistic car-following model produce desirable results or not. The proposed car-following model would be able to help in simulating driving behavior of an individual given that personality profile of that individual is known.

branding, marketing etc. A popular User's or Company's post usually attract hundreds or thousands... more branding, marketing etc. A popular User's or Company's post usually attract hundreds or thousands of comments and it looks difficult for a reader to read all of these comments to assess general public opinion about the topic discussed in the post. Furthermore, in case of marketing, one may like to judge the success of an ad campaign or new product launch or which products or services are popular and what people like or dislike about a particular feature of that product [i]. In such situations automatic sentiment analysis and opinion mining can help a lot. The purpose of sentiment analysis from a set of comments is to determine the attitude of commenters with respect to some subtopic or their overall contextual polarity towards the topic. This attitude may be their actual evaluation or can be caused by any emotional communication [ii]. Recently, a tremendous focus has been observed in literature to design new techniques to meet different requirements of the sentiment analysis and mining of writer's opinion [iii]-[v]. In [vi] a rule based approach is proposed to analyze sentiments through association rule mining for opinion extraction related to different product features. Such techniques has been used in several application areas including product feature extraction, summarization and analysis [vii]-[ix], e-commerce [x], tourism [xi], recommender system [x-xi] etc. Detailed literature review of sentiment analysis and its applications could be found in [iii-iv]. In this paper, a framework is designed through which opinions from reviews of people and sentiments (positivity or negativity) around those opinions could be found. The proposed framework is applied and realized as an application in which opinion mining and sentiment analysis of Facebook posts and comments of those posts are determined. This application helps users to understand the sentiments discussed in a post, extracts the topics with their semantics and also brings up the entities which are under discussion by the reviewers. Moreover, trend and behavior of reviewers can also be judged through the comment with its polarity with topics and entities. To evaluate proposed effectiveness of the design application based on the proposed framework a user study is performed which has shown very promising results. Rest of the paper is organized as follows, in section 98 Abstract-Since last few years, the trend of social networking is at its peak. People post their personal feelings and thinking about any topic or product for social liking or for marketing. Such posts often get hundreds or thousands of comments and it becomes difficult for a reader to read all of these to assess public opinion. Sometimes one just wants to know common opinion, behavior, trend or thinking discussed there or to determine whether those opinions are positive or negative. Particularly in case of product marketing, the company would like to judge the success of an ad campaign or new product launch or which products or services are popular and what people like or dislike about particular features of a product. In such situations automatic sentiment analysis and opinion mining can help a lot. Hence, in this paper a novel sentiment analysis and opinion mining framework is proposed. This framework utilizes various techniques of computational linguistics to measure sentiment orientation of user's opinion around different entities. The proposed framework is used to perform sentiment analysis and opinion mining of users' posts and comments on social media through a Facebook App. Furthermore a user study is conducted to gauge performance of the proposed framework. The results of this study have shown that the framework is capable of finding opinions of the users and sentiments around those opinions with more than 85 percent accuracy when compared with actual human judges.

International Journal of Communication Systems, 2019

Globally, urbanization has increased due to the availability of the facilities, jobs, and better ... more Globally, urbanization has increased due to the availability of the facilities, jobs, and better standard of living in cities. Increase in urban population has caused increase in urban commute. The increased pressure on urban settlements has made design and optimization of urban civil infrastructure very challenging especially road transport infrastructure. Domain experts such as transportation managers, engineers, scientist, and academics need effective, easy, and readily usable computational modeling and simulation tools to conduct systematic inquiry for design and optimization of the transportation system. Free and open-source software (FOSS) community has developed many vehicular traffic simulation software that are cost-effective and extensible, however are difficult to use. Usually, domain experts do not have hands-on software skills such as XML-based interfaces, software source versioning, and build management. To bridge this gap, in our work, an integrated development environment (IDE), namely, integrated vehicular traffic simulation environment (ITE), has been developed. ITE is developed on top of an existing FOSS multimodal open-source vehicular-traffic simulator (MovSim). ITE includes a scenario building tool for domain experts. It could be used to model road infrastructure and vehicular traffic in an integrated manner. The tool could be used to build and experiment novel traffic infrastructures and policies. Our work helps in reducing learning curve of domain experts by providing a free and open source, easy and readily usable vehicular traffic simulation tool.

World Journal of Surgical Oncology, 2022

Background Primary soft tissue sarcomas contribute to only 2% of all malignancies arising from th... more Background Primary soft tissue sarcomas contribute to only 2% of all malignancies arising from the male genitourinary tract. Leiomyosarcoma (LMS) is a malignant soft tissue neoplasm which originates from the mesenchyme and has a characteristic smooth muscle differentiation. Usually, it presents as a painless, firm, slow-growing unilateral scrotal mass. Investigations include imaging, tumor markers, and histopathology. Case presentation A 65-year-old gentleman known diabetic and beta-thalassemic trait was referred to the Urology OPD at Letterkenny University Hospital. His presenting complaint was a left groin lump that appeared 1 year ago and was growing larger in size gradually. According to the patient, his lump was slightly painful (localized) initially that later became painless. He did not report any testicular trauma/infection or UTI. There was no significant history of malignancies running through his family. Clinical examination revealed a soft and lax abdomen, normal testes....

Background:Primary soft tissue sarcomas contribute to only 2% of all malignancies arising from th... more Background:Primary soft tissue sarcomas contribute to only 2% of all malignancies arising from the male genitourinary tract. Leiomyosarcoma (LMS) is a malignant soft tissue neoplasm which originates from the mesenchyme and has a characteristic smooth muscle differentiation. Usually, it presents as a painless, firm, slow growing unilateral scrotal mass. Investigations include imaging, tumour markers and histopathology. Case Presentation:A 65 year old gentleman known Diabetic and Beta-thalassemic trait was referred to Urology OPD at Letterkenny University Hospital. His presenting complaint was left groin lump which appeared one year ago and was growing larger in size gradually. According to the patient his lump was slightly painful(localized) initially, that later became painless. He did not report any testicular trauma/infection or UTI. There was no significant history of malignancies running through his family. Clinical examination revealed soft and lax abdomen, normal testes. There...

Pediatric Surgery International, 2011

Introduction Circumcision is one of the most commonly performed surgical procedures in male child... more Introduction Circumcision is one of the most commonly performed surgical procedures in male children. A range of surgical techniques exist for this commonly performed procedure. The aim of this study is to assess the safety, functional outcome and cosmetic appearance of a sutureless circumcision technique. Methods Over a 9-year period, 502 consecutive primary sutureless circumcisions were performed by a single surgeon. All 502 cases were entered prospectively into a database including all relevant clinical details and a review was performed. The technique used to perform the sutureless circumcision is a modification of the standard sleeve technique with the use of a bipolar diathermy and the application of 2-octyl cyanoacrylate (2-OCA) to approximate the tissue edges. Results All boys in this study were pre-pubescent and the ages ranged from 6 months to 12 years (mean age 3.5 years). All patients had this procedure performed as a day case and under general anaesthetic. Complications included: haemorrhage (2.2%), haematoma (1.4%), wound infection (4%), allergic reaction (0.2%) and wound dehiscence (0.8%). Only 9 (1.8%) parents or patients were dissatisfied with the cosmetic appearance. Conclusion The use of 2-OCA as a tissue adhesive for sutureless circumcisions is an alternative to the standard suture technique. The use of this tissue adhesive, 2-OCA, results in comparable complication rates to the standard circumcision technique and results in excellent post-operative cosmetic satisfaction.

When considering intelligent agents that interact with humans, having an idea of the trust levels... more When considering intelligent agents that interact with humans, having an idea of the trust levels of the human, for example in other agents or services, can be of great importance. Most models of human trust that exist assume trust in one trustee is independent of trust in another trustee. The model introduced here addresses so-called relative trust. The idea of relative trust is that trust in a certain trustee not only depends on the experiences with that trustee, but also on trustees that are perceived competitors of that trustee. Such models for relative trust contain parameters to represent the specific dependency between trust for different trustees. In order to tailor the model towards a specific human, dedicated parameter estimation techniques are used. The validation shows that such a model for relative trust is able to predict human trust based behaviour significantly better compared to a benchmark model. Work presented in this paper is a significant extension of the works ...

Advances in Urology, Nov 29, 2018

Background. A combined urology clinic staffed by four consultants and four non-consultant hospita... more Background. A combined urology clinic staffed by four consultants and four non-consultant hospital doctors (NCHDs) was introduced in our institution in October 2015. is clinic is supported by a pre-clinic radiology meeting and a synchronous urology clinical nurse specialist (CNS) clinic with protected uroflow/trial of void slots. Herein, we report on the outcomes of this clinic in comparison with the standard format of urology outpatient review. Methods. We carried out a retrospective review of clinic attendances from May to July 2016. We recorded the number of new and return attendances, which team members had reviewed the patient and patient outcomes. We also calculated the waiting times for new patients to be reviewed in the outpatient clinic. Results. e combined urology clinic reviewed an average of 12 new and 46 return patients per clinic. e standard urology clinic reviewed an average of 8 new and 23 return patients per clinic. 54% of patients were seen by a consultant in the combined urology clinic, and 20% of patients were seen by a consultant in the standard urology clinic. e rate of patient discharge for new patients was 14.8% in the combined clinic compared to 5.9% in the standard clinic. Overall patient outcomes are outlined in the table. e waiting time for review of new patients in the combined clinic was reduced by 39% from 144 days to 89 days over a oneyear period. Conclusions. e introduction of a combined urology outpatient clinic with the support of pre-clinic radiology meeting and synchronous urology CNS clinic facilitates patient discharge.

International Journal of Urological Nursing

Mesentery and Peritoneum

Background: The Saolta University Healthcare Group consists of seven hospitals covering a populat... more Background: The Saolta University Healthcare Group consists of seven hospitals covering a population of approximately 709,000. Galway University Hospital is the only tertiary referral centre for acute urological emergencies within the group. Previously, there was no dedicated emergency surgery pathway for urological cases and these were added to a congested, shared emergency list. Research has demonstrated that an increased time to definitive surgical intervention for urinary tract calculi leads to increased mortality. Problem areas were identified in the emergency surgical pathway and a multidisciplinary team was established to identify solutions. Recommendations

Scottish Medical Journal, 2009

Urology case reports, 2018

A 48 year old female self presented accompanied by her husband to our Urology service on Valentin... more A 48 year old female self presented accompanied by her husband to our Urology service on Valentine's day with a history of accidental insertion of foreign body in the urethra instead of vagina as part of consensual sexual act. She complained of dysuria and suprapubic fullness. There was accompanying single episode of haematuria. Her past medical history included overactive bladder for which she was on antimuscarinics. On initial examination vital signs were within normal range. Examination of the cardiovascular and respiratory systems was unremarkable. Examination of the abdomen revealed suprapubic tenderness. Pelvic examination was unremarkable. Baseline blood investigations included a full blood count, renal profile, coagulation screen, urine analysis and Xray pelvis. All bloods were with in normal range. Her urine analysis showed microscopic haematuria without any evidence of active infection. Xray pelvis revealed a large foreign body in the bladder Fig. 1.

2005 Pakistan Section Multitopic Conference, 2005

ABSTRACT Over the past few years, importing design patterns from software engineering to the comp... more ABSTRACT Over the past few years, importing design patterns from software engineering to the computer science education (CSE) is followed by defining patterns and pattern languages suitable for pedagogical needs of Computer Science courses. The main goal of patterns incorporation in CSE was to enhance quality of content delivery and comprehension. However it is observed that soon after learning a concept most of the students are not certain about the degree of command over the studied material. Lack of questioning power makes it more devastating. The existing pattern-based materials seem to be insufficient for settling these problems. Hence there is a requirement of pedagogical pattern language that have twofold power of resolving these issues. This paper presents a pedagogical pattern language based on three newly discovered pedagogical patterns to address in time students confidence in their level of comprehension about learned skills.

Multiagent and Grid Systems, 2012

This paper addresses comparative evaluation of population-based simulation in comparison to agent... more This paper addresses comparative evaluation of population-based simulation in comparison to agent-based simulation for different numbers of agents. Population-based simulation, such as for example in the classical approaches to predator-prey modelling and modelling of epidemics, has computational advantages over agent-based modelling with large numbers of agents. Therefore the latter approaches can be considered useful only when the results are expected to deviate from the results of population-based simulation, and are considered more realistic. However, there is sometimes also a silent assumption that for larger numbers of agents, agent-based simulations approximate population-based simulations, which would indicate that agent-based simulation just can be replaced by population-based simulation. The paper evaluates such assumptions by two detailed comparative case studies: one in epidemics, and one in economical context. The former case study addresses the spread of an infectious disease over a population. The latter case study addresses the interplay between individual greed as a psychological concept and global economical concepts. It is shown that under certain conditions agent-based and population-based simulations may show similar results, but not always.

Central research questions addressed within Criminology are how the geographical displacement of ... more Central research questions addressed within Criminology are how the geographical displacement of crime can be understood, explained, and predicted. The process of crime displacement is usually explained by referring to the interaction of three types of agents: criminals, passers-by, and guardians. Most existing simulation models of this process take a 'local' perspective, i.e., they are agent-based. However, when the number of agents considered becomes large, more 'global' approaches, such as population-based simulation have computational advantages over agent-based simulation. This article presents both an agent-based and a population-based simulation model of crime displacement, and reports a comparative evaluation of the two models. In addition, an approach is put forward to analyse the behaviour of both models by means of formal techniques. The results suggest that under certain conditions, population-based models approximate agent-based models, at least in the domain under investigation.