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Search Results: 1 - 10 of 21 matches for " HOWA BEGAM "
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FABRICATION OF FINE GRAINED DENSE HAP THROUGH SLIP CASTING ROUTE
HOWA BEGAM,ABHIJIT CHANDA,,BISWANATH KUNDU
International Journal of Engineering Science and Technology , 2011,
Abstract: The purpose of this study is to synthesize nano-grained Calcium Hydroxyapatite (HAp) through slip casting technique. For this, hydroxyapatite powders were synthesized using two methods, wet chemical method and Ammoniacal method. The as-prepared powders and calcined powders were characterized using XRD, FTIR, to study the phases of the powders. The hydroxyapatite powder calcined at 1000°C for 2hr was used to prepare 50 vol% slurry using DN40 (sodium olyacrylate) as dispersing agent. After slip casting, the green bodies were sintered at different temperatures, 1100, 1200, 1250 and 1300°C with 2hr soaking time. The sintered dense samples were characterized for physical and mechanical behavior.Dense HaP samples were obtained at 1250C.
Endovascular Treatment of Intracranial Arteriovenous Malformations at Damascus University
Saeed Howa?ah Howa?ah,Morteza Joorabian,Mohammad Pipelzadeh
Iranian Journal of Radiology , 2011,
Abstract: Background/Objective: We report our experiences"nin the treatment of intracranial arteriovenous"nmalformations (AVMs) with Onyx embolization"nbefore neuro- or radiosurgery."nPatients and Methods: Between January 2008 and"nJuly 2010, 47 feeding arteries in 23 patients with brain"nAVMs were embolized with Onyx. There were eight"nwomen and 15 men with a mean age of 32 years (range,"n11-57 years). Clinical presentation included seizures"nin 11 patients (47%), hemorrhage from the AVM in"neight patients (35.7%), subarachnoid hemorrhage"nfrom a concomitant aneurysm in one patient (4.3%),"nand headache in three patients (13%)."nResults: The AVM volume reduction rates at the end of"nall embolization steps were included; volume reduction"nbelow 50% was 8.7%, 51-69% was 13%, 70-89% was"n34.8% and upper 90% was 43.5%. In 17.2% of the"npatients, radiosurgery was planned due to a persistent"narteriovenous shunt and neurosurgery was planned"nfor only one patient. The injection of Onyx resulted"nin high occlusion rates (volume reduction>90%) when"nthe AVM was in a supratentorial and cortical location,"nthe nidus was compact and plexiform and when there"nwas a small number of supplying (direct) feeders and"none superficial draining vein. Access device-related"ncomplications (stuck catheter, vessel perforation)"noccurred during the embolization of 47 feeding arteries"nin 8.6% of patients, with all such instances having had"nno clinical consequences."nConclusion: Onyx is feasible and safe in the"nembolization of brain AVMs. Complete obliteration"ncan be achieved in small AVMs. Large AVMs can be"nadequately reduced in size for additional surgical or"nradiosurgical treatment.
Morphology and Optical Measurements of Nanostructured In2O3:SnO2 Nanoparticle  [PDF]
A. Ayeshamariam, M. Jayachandran, C. Sanjeeviraja, M. Tajun Meera Begam
World Journal of Nano Science and Engineering (WJNSE) , 2012, DOI: 10.4236/wjnse.2012.21002
Abstract: Ultra-fine and uniform ITO nanopowders can be prepared by very simple Combustion method. In this paper, effects of Indium oxide with Sn doping on crystallinity, band gap values by UV studies and morphological studies by SEM and TEM analysis of nanopowders are reported. Powder mixtures of In2O3:SnO2 of 90:10 compositions are prepared and calculated grain size from X-ray diffraction measurements. The free electron absorption is determined from spectral transmission and reflection measurements. Key words: In2O3:SnO2, XRD, UV, Combustion and SEM.
Challenges and Usage of Link Mining to Semantic Web
Zaved Akhtar,Mahesh Kr. Singh,Naushad Begam
International Journal of Electronics and Computer Science Engineering , 2012,
Abstract: - It is an emerging challenge for data mining is the problem of mining richly structures datasets, where the objects are linked in some way. Links among the objects may demonstrate certain patterns, which can be helpful for many data mining tasks and are usually hard to capture with traditional statistical models. Many datasets of interest today are best described as a linked collection of interrelated objects. These may represent homogeneous networks, in which there is a single-object type and link type (eg. people connected by friendship links, or the WWW, a collection of linked web pages) or richer, heterogeneous networks, in which there may be multiple object and link types (and possibly other semantic information). Examples of heterogeneous networks include those in medical domains describing patients, diseases, treatments and contacts, or in bibliographic domains describing publications, authors, and venues. Link mining refers to data mining techniques that explicitly consider these links when building predictive or descriptive models of the linked data. Commonly addressed link mining tasks include object ranking, group detection, collective classification, link prediction and subgraph discovery. This is an exciting and rapidly expanding area. In this article we review some of the common emerging themes and discuss ongoing link mining challenges; open issues and suggest ideas that could be opportunities for solutions. The most conclusion of this article is that providing an idea to usage link mining techniques from link mining to help to construct the Semantic Web.
Adaptive Learning Management System Using Semantic Web Technologies
M.Farida Begam,Gopinath Ganapathy
International Journal on Soft Computing , 2013,
Abstract: Ontologies and semantic web services are the basics of next generation semantic web. This upcomingtechnologies are useful in many fields such as bioinformatics, businesscollaboration, Data integration andetc. E-learning is also the field in which semantic web technologies can be used to provide dynamism inlearning methodologies. E-learningincludes set of tasks which may beinstructionaldesign, contentdevelopment, authoring,delivery,assessment,feedback and etc.thatcan be sequenced and composed asworkflow.Web based Learning Management Systems should concentrate on how to satisfy the e-learnersrequirements. In this paper we have suggested the theoretical framework ALMS-Adaptive Learningmanagement System which focuses on three aspects 1) Extracting the knowledge from the use's interaction,behaviour and actions and translate them into semantics which are represented as Ontologies2) Find theLearner style from the knowledge base and 3)deriving and composing the workflow depending upon thelearner style. The intelligent agents areusedin each module of the framework to perform reasoning andfinallythepersonalized workflow forthe e-learnerhas been recommended
Fuzzy Shortest Path For Steiner Tree Problem
A.Nagoorgani,,A.Mumtaj Begam
International Journal on Computer Science and Engineering , 2011,
Abstract: In this paper, a modification of the shortest path approximation based on the fuzzy shortest paths evaluations. The Steiner tree problem on a graph in which a fuzzy number instead of a real number is assigned to each edge. Here, to solve the fuzzy shortest path using a new approach ranking method.
Voice Recognition Algorithms using Mel Frequency Cepstral Coefficient (MFCC) and Dynamic Time Warping (DTW) Techniques
Lindasalwa Muda,Mumtaj Begam,I. Elamvazuthi
Computer Science , 2010,
Abstract: Digital processing of speech signal and voice recognition algorithm is very important for fast and accurate automatic voice recognition technology. The voice is a signal of infinite information. A direct analysis and synthesizing the complex voice signal is due to too much information contained in the signal. Therefore the digital signal processes such as Feature Extraction and Feature Matching are introduced to represent the voice signal. Several methods such as Liner Predictive Predictive Coding (LPC), Hidden Markov Model (HMM), Artificial Neural Network (ANN) and etc are evaluated with a view to identify a straight forward and effective method for voice signal. The extraction and matching process is implemented right after the Pre Processing or filtering signal is performed. The non-parametric method for modelling the human auditory perception system, Mel Frequency Cepstral Coefficients (MFCCs) are utilize as extraction techniques. The non linear sequence alignment known as Dynamic Time Warping (DTW) introduced by Sakoe Chiba has been used as features matching techniques. Since it's obvious that the voice signal tends to have different temporal rate, the alignment is important to produce the better performance.This paper present the viability of MFCC to extract features and DTW to compare the test patterns.
Responding to Domestic Violence in General Practice: A Qualitative Study on Perceptions and Experiences
Howa Yeung,Nubaha Chowdhury,Alice Malpass,Gene S. Feder
International Journal of Family Medicine , 2012, DOI: 10.1155/2012/960523
Abstract: The perceptions and experiences among general practitioners (GPs) and nurses in identifying female patients experiencing domestic violence and referring patients to specialist agencies need to be clarified. Eleven GPs and six nurses participating in a multidisciplinary domestic violence training and support programme in east London and Bristol were interviewed. All participants recognised that identification of women experiencing domestic violence and offering support were part of their clinical roles. Perceived differences between GPs and nurses, including time constraints, level of patient interaction, awareness of patients' social history, scope of clinical interview, and patient expectations were used to explain their levels of domestic violence inquiry. Barriers to inquiry included lack of time, experience, awareness of community resources, and availability of effective interventions postdisclosure. Longstanding relationships with patients were cited both as barrier and facilitator to domestic violence disclosure. Some nurses reported discomfort with direct inquiry due to the lack of clinical experience in responding to domestic violence despite satisfaction with training. Future domestic violence training programmes should take into account potential differences between GPs and nurses, in terms of their clinical roles and the unique barriers encountered, in order to improve self-efficacy and to facilitate collaborative and effective responses. 1. Introduction Domestic violence is a pattern of threatening behaviour, violence, or abuse including psychological, physical, sexual, financial, or emotional abuse between adults in the same family or who are or have been intimate partners [1]. It is a severe breach of human rights with profound consequences, particularly for women who, compared to men, experience more sexual violence, more severe physical violence, and more coercive control from their partners [2, 3]. Domestic violence threatens women’s physical health, mental health, and social functioning, and poses a serious public health problem [4, 5]. Its impact is widespread internationally, with lifetime prevalence ranging from 15% to 71% in a WHO multicountry study [6]. In the UK, 30% of women have experienced domestic abuse in their lifetime and 7% within the past year [7]. Its prevalence in women seeking healthcare is even higher; among women attending general practices in east London, 41% had experienced physical or sexual violence in their lifetime and 17% within the past year [8]. Primary care clinicians potentially have a key role in the
Single versus combination therapy in acute tocolysis: A prospective randomized controlled trial  [PDF]
Wafa R. Al-Omari, Muzibunnisa A. Begam, Farsana S. Khan, Iman Y. Khudhair, Nicolaas J. Nagelkerke
Open Journal of Obstetrics and Gynecology (OJOG) , 2013, DOI: 10.4236/ojog.2013.32047
Abstract:

This is a prospective controlled randomized trial conducted in 92 women with singleton pregnancies in preterm labor. The tocolytic efficacy and safety of combination atosiban and nifedipine was compared with that of the single agent, atosiban. Both lines of intervention was administered for 48 hours. Progression of labor was assessed by the frequency of uterine contractions and cervical changes. For statistical purpose, intent-to-treat (ITT) analysis was used throughout. Efficacy, as determined by the proportion of women in each group who did not deliver after therapy initiation, was comparable with no significant differences, at 48 hrs (91.5% vs. 91.1%) and at 7 days (90.7% vs. 85.7%) for the atosiban and the combination groups respectively. Safety was assessed by the numbers of adverse events. Maternal side effects were reported more in the combination group (34% vs. 64%; P = 0.006). Perinatal outcomes were similar between the groups. We conclude that the addition of nifedipine did not substantially improve the clinical outcomes beyond that were achieved with atosiban alone. Moreover, it has increased maternal side effects. Future research could focus on combination of other tocolytics.

Accuracy assessment of laparoscopic examination of intra-abdominal organs in trauma victims
H. Peyvandi,M. Talebpoor,Z. Begam Orang,H. Ahmadi Amoli
Tehran University Medical Journal , 2006,
Abstract: Background: Performing traditional autopsy mostly seems to be unpleasant in dead persons' relatives' opinion. This study aimed to determine the accuracy of laparoscopic examination of intra abdominal organs in comparison to the traditional autopsy in trauma victims. Methods: From December 2004 to September 2005, 50 fresh cadavers of blunt trauma victims were studied in less than 24 hours from death time. Intraperitoneal and retroperitoneal organs were first evaluated by laparoscope and then the traditional autopsy was performed as gold standard. The organs were assessed regarding impairment and its grade in both ways. Diagnostic accuracy of laparoscope was determined for each case with 95% confidence interval using Fisher's exact test. Results: The values of overall and distinct accuracy of laparoscopic examination for intraperitoneal and retroperitoneal organs were significantly comparable with traditional autopsy. The accuracy of laparoscopic evaluation of intraperitoneal and retroperitoneal organs were 90% (95% CI of 81.7% to 94.8%) and 92% (95% CI of 84.7% to 96%) respectively in comparison to open autopsy. The overall accuracy of laparoscopic examination was 84% (95% CI of 74.3% to 90.5%). Conclusion: The sensitivity and specificity of laparoscopic examination for intraperitoneal but not retroperitoneal organs were acceptable in comparison to open autopsy. Laparoscopic examination seems to be an eligible substitute for the traditional autopsy in assessment of intraperitonel organs.
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