209 research outputs found
Development of Hypervideo Platform Using Object Databases
No full textWeb users are seizing on interactive capabilities that software suppliers have developed so far, and are eagerly awaiting new interactive capabilities now being demonstrated. This paper focuses the development of rich information environment based on a customized platform enabling hyperlinks on objects within a digital video. With the help of such environment, the viewer is able to view multiple videos concurrently and browse them temporally as well as spatially with the help of an object database. Specifically, the platform enables to traverse through that object by linking, and such links have been explored and created. The link may connect to within a video, or multiple running videos and/or World Wide Web object. The issues such as open hypermedia link base (static, generic or dynamic) and object database versus multiple videos are also investigated
Study of Pakistan pilot project farmer-leaders to Nepal
No full textFarmer participation / Irrigation management / Farmer managed irrigation systems / Irrigated farming / Sustainable agriculture / Institution building / Pakistan
Are Two Interviews Better Than One? Memory across Repeated Cognitive Interviews.
No full textEyewitnesses to a filmed event were interviewed twice using a Cognitive Interview to examine the effects of variations in delay between the repeated interviews (immediately & 2 days; immediately & 7 days; 7 & 9 days) and the identity of the interviewers (same or different across the two repeated interviews). Hypermnesia (an increase in total amount of information recalled in the repeated interview) occurred without any decrease in the overall accuracy. Reminiscence (the recall of new information in the repeated interview) was also found in all conditions but was least apparent in the longest delay condition, and came with little cost to the overall accuracy of information gathered. The number of errors, increased across the interviews, but the relative accuracy of participants' responses was unaffected. However, when accuracy was calculated based on all unique details provided across both interviews and compared to the accuracy of recall in just the first interview it was found to be slightly lower. The identity of the interviewer (whether the same or different across interviews) had no effects on the number of correct details. There was an increase in recall of new details with little cost to the overall accuracy of information gathered. Importantly, these results suggest that witnesses are unlikely to report everything they remember during a single Cognitive Interview, however exhaustive, and a second opportunity to recall information about the events in question may provide investigators with additional information
Diagnosis of hepatoma using grayscale and Doppler ultrasound in patients with chronic liver disease
No full textWasim A Memon, Zishan Haider, Mirza Amanullah Beg, Muhammad Idris, Tanveer-ul-Haq, Waseem Akhtar, Sidra IdrisRadiology Department, Aga Khan University Hospital, Karachi, Pakistan Every author contributed equally to the workObjective: To determine the diagnostic accuracy of liver ultrasound for the detection of hepatoma in chronic liver disease (CLD) patients by either taking histopathology or serum α-fetoprotein levels or a biphasic computed tomography (CT) scan (whichever is available) as the gold standard.Study design: Cross-sectional.Place and duration of study: Radiology Department, The Aga Khan University Hospital, Karachi, Pakistan, from January 2007 to January 2010.Methods: A total of 239 patients (156 males and 83 females) with clinical suspicion or surveillance of hepatoma in CLD referred to the radiology department for ultrasound evaluation followed by either liver biopsy and histopathology or serum α-fetoprotein level or biphasic CT scan.Results: The sensitivity of ultrasound for hepatoma detection in CLD was 65%, specificity was 85%, and accuracy was 70%, and positive predictive value and negative predictive value were 92% and 45%, respectively.Conclusion: Ultrasound is a relatively quick, safe, reasonably accurate, and noninvasive imaging modality for the detection of hepatoma in CLD and can be complemented with clinical assessment of screening high-risk patients.Keywords: hepatoma, ultrasound, radiology, chronic liver diseas
The Role of Muhammad Umar Memon in Fictional Translations
No full textThe history of fiction translation in Urdu Language is not veryold and one of the able translator we see in this history isMUHAMMAD UMAR MEMON. The element of creativity canbe seen prominently in its translations. He adapted the works ofArabic, French, English, Czech writers into Urdu style such away that due to the rare use of similes, the meaning was freedfrom the confines of the text even for the Urdu Readers. Themain merit of MemonLs translations is that while having acreative element, do not depart form the source text so that thestory reach the target in that style the author intended. Thepleasant style in which the complicated plot story is welladopted to the target language is a proof of its trustworthiness
Causes of recurrence in laparoscopic inguinal hernia repair (vol 22, pg 975, 2018)
No full textIn the original publication, affiliation 3 was incorrectly published for the author 'Darius Ashrafi'. The correct affiliation should read as 'Department of Surgery, Sunshine Coast University Hospital, Birtinya, QLD, Australia
False claims about false memory research
No full textPezdek and Lam [Pezdek, K. & Lam, S. (2007). What research paradigms have cognitive psychologists used to study “False memory,” and what are the implications of these choices? Consciousness and Cognition] claim that the majority of research into false memories has been misguided. Specifically, they charge that false memory scientists have been (1) misusing the term “false memory,” (2) relying on the wrong methodologies to study false memories, and (3) misapplying false memory research to real world situations. We review each of these claims and highlight the problems with them. We conclude that several types of false memory research have advanced our knowledge of autobiographical and recovered memories, and that future research will continue to make significant contributions to how we understand memory and memory errors
The Effect of Priming Biblical Benevolence on Prosocial Behavior Rabia Memon
No full textabstract: Religion and the belief in supernatural agents have been assumed to play an important role in encouraging prosocial behavior. However, different studies conducted have shown a complex relation between religion and prosociality. For example, Darley & Batson (1973) found that religious people do not always help strangers. In the present study, Christian participants were primed with benevolent commandments attributed to either the Bible or past historical figures or secular, non-benevolent quotes (control). I then measured their willingness to help pick up envelopes dropped by either a Muslim (wearing a hijab) or non-Muslim confederate woman. The results show that subjects primed with Bible or presidential quotes about benevolence were more likely to be helpful to the Muslim confederate than those in the control group. Differences between the Bible and presidential condition were not significant. I conclude that an authority, whether it be a president or God, promoting benevolence can increase prosocial behaviors toward out-group members
Flow structure and heat transfer in an impinging jet CVD reactor:
No full textA detailed experimental study is undertaken to investigate the flow structure and heat transfer in an impinging jet Chemical Vapor Deposition (CVD) reactor at atmospheric pressure. It is critical to develop models that predict flow patterns in such a reactor to achieve uniform deposition across the substrate. Free convection can negatively affect the gas flow as cold inlet gas impinges on the heated substrate, leading to vortices and disturbances in the normal flow path. This experimental research will be used to understand the buoyancy-induced and momentum-driven flow structure encountered in an impinging jet CVD reactor. Investigations are conducted for various operational parameters such as substrate temperature and inlet velocity. In addition, different reactor geometries with varying inlet length and height between the substrate and inlet are included in the study. Experimental results obtained from the study provide information on the temperature distribution, heat transfer rates, and flow field. Such results validate the operation of the reactor at atmospheric pressure and provide valuable insight into future design of impinging jet CVD reactors.M.S.Includes bibliographical references (p. 64-67)by Nasir Memo
Multiple inverse-diffusion flame synthesis of carbon nanomaterials
No full textCarbon nanomaterials exhibit many remarkable electrical and physical properties. An ongoing challenge associated with specific novel carbon nanomaterials, such as graphene, is the development of large-scale production methods at low cost. The broad objective of this work is to investigate flame synthesis of carbon nanomaterials, specifically graphene and carbon nanotubes (CNTs), using open-atmosphere processing, with an eye towards scalability. An experimental study using a novel setup, based on multiple inverse-diffusion flames is undertaken to investigate the direct flame-synthesis of CNTs and graphene on metal substrates. Few-layer graphene (FLG) is grown on copper and nickel substrates at high rates using the novel flame-synthesis burner. Substrate material (i.e. copper, nickel, cobalt, iron, and copper-nickel alloy), along with its temperature and hydrogen pretreatment, strongly impacts the quality and uniformity of the graphene films. The growth of FLG occurs in the temperature range 750-950°C for copper and 600-850°C for nickel and cobalt. For iron, the growth of graphene is not exclusively observed. CNT growth is observed on a number of substrates. Transitional growth between CNTs and graphene films occurs on nickel and nickel alloys, depending on composition and temperature. For nickel, copper-nickel, nitinol, and Inconel substrates, CNTs grow at 500°C. The transitional growth to few-layer graphene is observed on nickel, copper-nickel and Inconel by changing the substrate temperature to 850°C. The growth of graphene is not observed on nitinol for the examined experimental conditions. The growth of few-layer graphene films and CNTs are also investigated using various metal-oxide spinels as catalysts. The growth of CNTs is examined on NiAl2O4, CoAl2O4 and ZnFe2O4 using counterflow diffusion flame and multiple inverse-diffusion flames, while the growth of graphene is examined on CuFe2O4 using multiple inverse-diffusion flames. Finally, the growth of CNTs and iron oxide is studied on stainless steel. At low temperatures (500oC) the growth of α-Fe2O3 is observed, while at higher temperatures (850oC) the growth of CNTs is observed. Additionally, by following a two-step growth process, where the temperature is changed from 500oC to 850oC, the growth of CNTs and γ-Fe2O3 occurs.Ph. D.Includes bibliographical referencesIncludes vitaby Nasir K. Memo
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