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Papers by muhammad hasan

Research paper thumbnail of Diagnostic value of priming the endoscopic ultrasound-guided fine-needle aspiration needle with heparin to improve specimen quality

Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 2014

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Research paper thumbnail of Dynamic oscillatory signatures of central neuropathic pain in spinal cord injury

The journal of pain : official journal of the American Pain Society, 2014

Central neuropathic pain (CNP) is believed to be accompanied by increased activation of the senso... more Central neuropathic pain (CNP) is believed to be accompanied by increased activation of the sensorimotor cortex. Our knowledge of this interaction is based mainly on functional magnetic resonance imaging studies, but there is little direct evidence on how these changes manifest in terms of dynamic neuronal activity. This study reports on the presence of transient electroencephalography (EEG)-based measures of brain activity during motor imagery in spinal cord-injured patients with CNP. We analyzed dynamic EEG responses during imaginary movements of arms and legs in 3 groups of 10 volunteers each, comprising able-bodied people, paraplegic patients with CNP (lower abdomen and legs), and paraplegic patients without CNP. Paraplegic patients with CNP had increased event-related desynchronization in the theta, alpha, and beta bands (16-24 Hz) during imagination of movement of both nonpainful (arms) and painful limbs (legs). Compared to patients with CNP, paraplegics with no pain showed a ...

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Research paper thumbnail of Endodontic retreatment of a mandibular first molar with five root canal systems: an important clinical lesson

BMJ case reports, 2014

The objective of root canal treatment is to perform complete debridement of the root canals and s... more The objective of root canal treatment is to perform complete debridement of the root canals and subsequent obturation to facilitate healing of periapical pathosis. However, this process becomes complicated with the presence of additional root canal systems. The purpose of the present article is to report successful non-surgical retreatment of a mandibular first molar with five canals. This case report discusses the clinical management of a previously root filled mandibular firstmolar with two missed canal systems; distolingual and an additional mesial canal known as the middle mesial canal. The post-treatment radiographs show successful obturation to length in all canals. The middle mesial canal was found to be associated with mesiolingual canal and categorised as confluent. The configuration of canals in the mesial root was type XV, based on the classification given by Sert and Bayirli. This case report highlights the importance of knowledge and its application in the management of...

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Research paper thumbnail of The 25-gauge EUS-FNA needle: Good for on-site but poor for off-site evaluation? Results of a randomized trial

Gastrointestinal endoscopy, 2014

When on-site cytopathology support is not available, EUS-guided fine needle aspiration (EUS-FNA) ... more When on-site cytopathology support is not available, EUS-guided fine needle aspiration (EUS-FNA) is performed for cell-block preparation to allow off-site interpretation. To identify the number of passes required to obtain a diagnostic cell block by using a 25-gauge needle for sampling pancreatic masses. Randomized trial. Tertiary care hospital. Sixty-two patients with solid pancreatic mass lesions. EUS-FNA was performed by using a 25-gauge needle. After establishing a preliminary on-site diagnosis, patients were randomized to 2 or 4 FNA passes for a cell block. A cell block was evaluated by a pathologist blinded to on-site interpretation for the presence of a tissue pellet, histological core tissue size, and diagnostic accuracy. To determine the number of passes required to obtain a diagnostic cell block with a 25-gauge FNA needle. Sixty-two patients were randomized to undergo either 2 (n = 31) or 4 (n = 31) FNA passes for a cell block. Before randomization, an on-site diagnosis wa...

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Research paper thumbnail of Lung cancer staging by combined endobronchial ultrasound (EBUS) and endoscopic ultrasound (EUS): The gastroenterologist's perspective

Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver, 2010

This review deals with the combined approach of endoscopic ultrasound and endobronchial ultrasoun... more This review deals with the combined approach of endoscopic ultrasound and endobronchial ultrasound for lung cancer staging. The review provides an overview for the gastroenterologist who performs endosonography with regard to the current evidence supporting the use of endoscopic ultrasound and endobronchial ultrasound in clinical practice.

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Research paper thumbnail of Training endosonographers in cytopathology: improving the results of EUS-guided FNA

Gastrointestinal endoscopy, 2015

Although on-site cytopathology services have a significant impact on efficiency and accuracy of E... more Although on-site cytopathology services have a significant impact on efficiency and accuracy of EUS-guided FNA (EUS-FNA), the availability of this service is variable. To evaluate the impact of an intensive 2-day training program to educate endosonographers in EUS-related cytopathology. Pilot study. Tertiary care medical center. Six endosonographers (5 male, median age, 35 years) with minimal previous cytopathology exposure comprised the study cohort. Pre- and posttraining testing was administered. Training commenced with a cytopathology tutorial focusing on 4 performance measures: specimen adequacy, sample interpretation, specimen processing, and preliminary diagnosis. Eight live EUS-FNA cases were then performed, and study participants independently completed 4 questions based on performance measures for each case. The ability to independently smear and stain slides and operate a microscope was additionally assessed after a hands-on tutorial. Comparison of pretraining and posttrai...

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Research paper thumbnail of Natural antiemetics: an overview

Pakistan journal of pharmaceutical sciences, 2014

Emesis encompasses the forceful expulsion of the contents of stomach via the mouth or sometimes t... more Emesis encompasses the forceful expulsion of the contents of stomach via the mouth or sometimes the nose. The adverse effects of currently available anti-emetic agents potentiate the natural product researchers to explore the natural anti-emetics with fewer side effects. The presented communication constitutes a review on anti-emetic effect of two hundred and forty five plants belonging to seventy-eight families found in different parts of the world. It also outlined the anti-emetic effect of plant extracts and isolated secondary metabolites studied through a variety of animal models of emesis. The reported anti-emetic plants in different countries and cultures and the scientific studies on extracts may help in the identification of promising single chemical compound(s) that may be used as a potential leads for developing safe anti-emetic agents in future. Moreover the reported secondary metabolites having the same effect may open the door for the search of same secondary metabolite...

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Research paper thumbnail of Stability of surface chromate – A physicochemical investigation in relevance to environmental reservations about calcined chromia catalysts

Applied Catalysis A: General, 1998

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Research paper thumbnail of Thermal-hydraulic and structural design for the lithium-cooled TITAN-I reversed-feeld-pinch reactor

Fusion Engineering and Design, 1989

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Research paper thumbnail of Kinetics of formation of barium tungstate in equimolar powder mixture of BaCO 3 and WO 3

Journal of Thermal Analysis and …, 2010

The formation of Barium monotungstate (BaWO4) particles in equimolar powder mixtures of BaCO3 and... more The formation of Barium monotungstate (BaWO4) particles in equimolar powder mixtures of BaCO3 and WO3 was examined under isothermal and non-isothermal conditions upon heating in air at 25–1200 °C, using thermogravimetry. Concurrence of the observed mass loss ...

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Research paper thumbnail of Customized kernel execution on reconfigurable hardware for embedded applications

Microprocessors and Microsystems, 2009

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Research paper thumbnail of Hydrothermal synthesis attempts of dawsonite-type hydroxymetalocarbonate precursor compounds for catalytic Ho, Sm, and La oxides

Materials Research Bulletin, 2008

Chemical interactions in mixed, aqueous solutions of NH4HCO3 and M (NO3) 3· 9H2O, where M stands ... more Chemical interactions in mixed, aqueous solutions of NH4HCO3 and M (NO3) 3· 9H2O, where M stands for Ho, Sm, or La, were facilitated under various hydrothermal treatment conditions (pH 8–12 and temperature= 75–135° C). The solution chemistry established ...

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Research paper thumbnail of FPGA-Based Vector Processing for Solving Sparse Sets of Equations

… 2005. FCCM 2005. 13th Annual IEEE …, 2005

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Research paper thumbnail of Beat-to-beat vectorcardiographic analysis of ventricular depolarization and repolarization in myocardial infarction

Increased beat-to-beat variability in the QT interval has been associated with heart disease and ... more Increased beat-to-beat variability in the QT interval has been associated with heart disease and mortality. The purpose of this study was to investigate the beat-to-beat spatial and temporal variations of ventricular depolarization and repolarization in vectorcardiogram (VCG) for characterising myocardial infarction (MI) patients. Standard 12-lead ECGs of 84 MI patients (22 f, 63±12 yrs; 62 m, 56±10 yrs) and 69 healthy subjects (17 f, 42±18 yrs; 52 m, 40±13 yrs) were investigated. To extract the beat-to-beat QT intervals, a template-matching algorithm and the singular value decomposition method have been applied to synthesise the ECG data to VCG. Spatial and temporal variations in the QRS complex and T-wave loops were studied by investigating several descriptors (point-to-point distance variability, mean loop length, T-wave morphology dispersion, percentage of loop area, total cosine R-to-T). Point-to-point distance variability of QRS and T-loops (0.13±0.04 vs. 0.10±0.04, p< 0.0001 and 0.16±0.07 vs. 0.13±0.06, p< 0.05) were significantly larger in the MI group than in the control group. The average T-wave morphology dispersion was significantly higher in the MI group than in the control group (62°±8° vs. 38°±16°, p< 0.0001). Further, its beat-to-beat variability appeared significantly lower in the MI group than in the control group (12°±5° vs. 15°±6°, p< 0.005). Moreover, the average percentage of the T-loop area was found significantly lower in the MI group than the controls (46±17 vs. 55±15, p< 0.001). Finally, the average and beat-to-beat variability of total cosine R-to-T were not found statistically significant between both groups. Beat-to-beat assessment of VCG parameters may have diagnostic attributes that might help in identifying MI patients.

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Research paper thumbnail of Runtime Partial Reconfiguration for Embedded Vector Processors

Page 1. Runtime Partial Reconfiguration for Embedded Vector Processors Muhammad Z. Hasan and Soti... more Page 1. Runtime Partial Reconfiguration for Embedded Vector Processors Muhammad Z. Hasan and Sotirios G. Ziavras Electrical and Computer Engineering Department New Jersey Institute of Technology Newark, NJ 07102 {mzh3, ziavras}@njit.edu Abstract ...

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Research paper thumbnail of Relation between Beat‐to‐Beat QT Interval Variability and T‐Wave Amplitude in Healthy Subjects

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Research paper thumbnail of Design of an Automated Rail Transit System Controller: Malaysia Perspective

... Design of an Automated Rail Transit System Controller: Malaysia Perspective M. Ibn Ibrahimy, ... more ... Design of an Automated Rail Transit System Controller: Malaysia Perspective M. Ibn Ibrahimy, M. Asraful Hasan, M. Habib Ullah Department of Electrical and Computer Engineering, International Islamic University Malaysia. ...

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Research paper thumbnail of The Learning Curve for In Vivo Probe Based Confocal Laser Endomicroscopy (PCLE) for Prediction of Colorectal Neoplasia

Gastrointestinal …, 2009

Gastrointestinal Endoscopy, Volume 69, Issue 5, Pages AB364-AB365, April 2009, Authors:Anna M. Bu... more Gastrointestinal Endoscopy, Volume 69, Issue 5, Pages AB364-AB365, April 2009, Authors:Anna M. Buchner; Victoria Gomez; Kanwar R. Gill; Marwan Ghabril; Daniela Scimeca; Muhammad W. Shahid; Sami R. Achem; Michael F. Picco; Douglas Riegert-Johnson; Massimo Raimondo ...

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Research paper thumbnail of Granulocytic Sarcoma Presenting With Malignant Anasarca In a Patient With Secondary Acute Myeloid Leukemia

International journal of …, 2004

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Research paper thumbnail of Dawsonite-Type Precursors for Catalytic Al, Cr, and Fe Oxides: Synthesis and Characterization

Cheminform, 2006

Hydrothermal processing of aqueous MO (OH)-and HCO3-at≤ 100° C and pH of about 11 results in the ... more Hydrothermal processing of aqueous MO (OH)-and HCO3-at≤ 100° C and pH of about 11 results in the formation of dawsonite-type NH4M (CO3)(OH) 2, for M= Al or Cr. Whereas for M= Fe, the preparation course is interrupted by the precipitation of the non-dawsonitic ...

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Research paper thumbnail of Diagnostic value of priming the endoscopic ultrasound-guided fine-needle aspiration needle with heparin to improve specimen quality

Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society, 2014

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Dynamic oscillatory signatures of central neuropathic pain in spinal cord injury

The journal of pain : official journal of the American Pain Society, 2014

Central neuropathic pain (CNP) is believed to be accompanied by increased activation of the senso... more Central neuropathic pain (CNP) is believed to be accompanied by increased activation of the sensorimotor cortex. Our knowledge of this interaction is based mainly on functional magnetic resonance imaging studies, but there is little direct evidence on how these changes manifest in terms of dynamic neuronal activity. This study reports on the presence of transient electroencephalography (EEG)-based measures of brain activity during motor imagery in spinal cord-injured patients with CNP. We analyzed dynamic EEG responses during imaginary movements of arms and legs in 3 groups of 10 volunteers each, comprising able-bodied people, paraplegic patients with CNP (lower abdomen and legs), and paraplegic patients without CNP. Paraplegic patients with CNP had increased event-related desynchronization in the theta, alpha, and beta bands (16-24 Hz) during imagination of movement of both nonpainful (arms) and painful limbs (legs). Compared to patients with CNP, paraplegics with no pain showed a ...

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Research paper thumbnail of Endodontic retreatment of a mandibular first molar with five root canal systems: an important clinical lesson

BMJ case reports, 2014

The objective of root canal treatment is to perform complete debridement of the root canals and s... more The objective of root canal treatment is to perform complete debridement of the root canals and subsequent obturation to facilitate healing of periapical pathosis. However, this process becomes complicated with the presence of additional root canal systems. The purpose of the present article is to report successful non-surgical retreatment of a mandibular first molar with five canals. This case report discusses the clinical management of a previously root filled mandibular firstmolar with two missed canal systems; distolingual and an additional mesial canal known as the middle mesial canal. The post-treatment radiographs show successful obturation to length in all canals. The middle mesial canal was found to be associated with mesiolingual canal and categorised as confluent. The configuration of canals in the mesial root was type XV, based on the classification given by Sert and Bayirli. This case report highlights the importance of knowledge and its application in the management of...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The 25-gauge EUS-FNA needle: Good for on-site but poor for off-site evaluation? Results of a randomized trial

Gastrointestinal endoscopy, 2014

When on-site cytopathology support is not available, EUS-guided fine needle aspiration (EUS-FNA) ... more When on-site cytopathology support is not available, EUS-guided fine needle aspiration (EUS-FNA) is performed for cell-block preparation to allow off-site interpretation. To identify the number of passes required to obtain a diagnostic cell block by using a 25-gauge needle for sampling pancreatic masses. Randomized trial. Tertiary care hospital. Sixty-two patients with solid pancreatic mass lesions. EUS-FNA was performed by using a 25-gauge needle. After establishing a preliminary on-site diagnosis, patients were randomized to 2 or 4 FNA passes for a cell block. A cell block was evaluated by a pathologist blinded to on-site interpretation for the presence of a tissue pellet, histological core tissue size, and diagnostic accuracy. To determine the number of passes required to obtain a diagnostic cell block with a 25-gauge FNA needle. Sixty-two patients were randomized to undergo either 2 (n = 31) or 4 (n = 31) FNA passes for a cell block. Before randomization, an on-site diagnosis wa...

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Research paper thumbnail of Lung cancer staging by combined endobronchial ultrasound (EBUS) and endoscopic ultrasound (EUS): The gastroenterologist's perspective

Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver, 2010

This review deals with the combined approach of endoscopic ultrasound and endobronchial ultrasoun... more This review deals with the combined approach of endoscopic ultrasound and endobronchial ultrasound for lung cancer staging. The review provides an overview for the gastroenterologist who performs endosonography with regard to the current evidence supporting the use of endoscopic ultrasound and endobronchial ultrasound in clinical practice.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Training endosonographers in cytopathology: improving the results of EUS-guided FNA

Gastrointestinal endoscopy, 2015

Although on-site cytopathology services have a significant impact on efficiency and accuracy of E... more Although on-site cytopathology services have a significant impact on efficiency and accuracy of EUS-guided FNA (EUS-FNA), the availability of this service is variable. To evaluate the impact of an intensive 2-day training program to educate endosonographers in EUS-related cytopathology. Pilot study. Tertiary care medical center. Six endosonographers (5 male, median age, 35 years) with minimal previous cytopathology exposure comprised the study cohort. Pre- and posttraining testing was administered. Training commenced with a cytopathology tutorial focusing on 4 performance measures: specimen adequacy, sample interpretation, specimen processing, and preliminary diagnosis. Eight live EUS-FNA cases were then performed, and study participants independently completed 4 questions based on performance measures for each case. The ability to independently smear and stain slides and operate a microscope was additionally assessed after a hands-on tutorial. Comparison of pretraining and posttrai...

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Research paper thumbnail of Natural antiemetics: an overview

Pakistan journal of pharmaceutical sciences, 2014

Emesis encompasses the forceful expulsion of the contents of stomach via the mouth or sometimes t... more Emesis encompasses the forceful expulsion of the contents of stomach via the mouth or sometimes the nose. The adverse effects of currently available anti-emetic agents potentiate the natural product researchers to explore the natural anti-emetics with fewer side effects. The presented communication constitutes a review on anti-emetic effect of two hundred and forty five plants belonging to seventy-eight families found in different parts of the world. It also outlined the anti-emetic effect of plant extracts and isolated secondary metabolites studied through a variety of animal models of emesis. The reported anti-emetic plants in different countries and cultures and the scientific studies on extracts may help in the identification of promising single chemical compound(s) that may be used as a potential leads for developing safe anti-emetic agents in future. Moreover the reported secondary metabolites having the same effect may open the door for the search of same secondary metabolite...

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Research paper thumbnail of Stability of surface chromate – A physicochemical investigation in relevance to environmental reservations about calcined chromia catalysts

Applied Catalysis A: General, 1998

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Thermal-hydraulic and structural design for the lithium-cooled TITAN-I reversed-feeld-pinch reactor

Fusion Engineering and Design, 1989

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Kinetics of formation of barium tungstate in equimolar powder mixture of BaCO 3 and WO 3

Journal of Thermal Analysis and …, 2010

The formation of Barium monotungstate (BaWO4) particles in equimolar powder mixtures of BaCO3 and... more The formation of Barium monotungstate (BaWO4) particles in equimolar powder mixtures of BaCO3 and WO3 was examined under isothermal and non-isothermal conditions upon heating in air at 25–1200 °C, using thermogravimetry. Concurrence of the observed mass loss ...

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Research paper thumbnail of Customized kernel execution on reconfigurable hardware for embedded applications

Microprocessors and Microsystems, 2009

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Research paper thumbnail of Hydrothermal synthesis attempts of dawsonite-type hydroxymetalocarbonate precursor compounds for catalytic Ho, Sm, and La oxides

Materials Research Bulletin, 2008

Chemical interactions in mixed, aqueous solutions of NH4HCO3 and M (NO3) 3· 9H2O, where M stands ... more Chemical interactions in mixed, aqueous solutions of NH4HCO3 and M (NO3) 3· 9H2O, where M stands for Ho, Sm, or La, were facilitated under various hydrothermal treatment conditions (pH 8–12 and temperature= 75–135° C). The solution chemistry established ...

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Research paper thumbnail of FPGA-Based Vector Processing for Solving Sparse Sets of Equations

… 2005. FCCM 2005. 13th Annual IEEE …, 2005

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Research paper thumbnail of Beat-to-beat vectorcardiographic analysis of ventricular depolarization and repolarization in myocardial infarction

Increased beat-to-beat variability in the QT interval has been associated with heart disease and ... more Increased beat-to-beat variability in the QT interval has been associated with heart disease and mortality. The purpose of this study was to investigate the beat-to-beat spatial and temporal variations of ventricular depolarization and repolarization in vectorcardiogram (VCG) for characterising myocardial infarction (MI) patients. Standard 12-lead ECGs of 84 MI patients (22 f, 63±12 yrs; 62 m, 56±10 yrs) and 69 healthy subjects (17 f, 42±18 yrs; 52 m, 40±13 yrs) were investigated. To extract the beat-to-beat QT intervals, a template-matching algorithm and the singular value decomposition method have been applied to synthesise the ECG data to VCG. Spatial and temporal variations in the QRS complex and T-wave loops were studied by investigating several descriptors (point-to-point distance variability, mean loop length, T-wave morphology dispersion, percentage of loop area, total cosine R-to-T). Point-to-point distance variability of QRS and T-loops (0.13±0.04 vs. 0.10±0.04, p< 0.0001 and 0.16±0.07 vs. 0.13±0.06, p< 0.05) were significantly larger in the MI group than in the control group. The average T-wave morphology dispersion was significantly higher in the MI group than in the control group (62°±8° vs. 38°±16°, p< 0.0001). Further, its beat-to-beat variability appeared significantly lower in the MI group than in the control group (12°±5° vs. 15°±6°, p< 0.005). Moreover, the average percentage of the T-loop area was found significantly lower in the MI group than the controls (46±17 vs. 55±15, p< 0.001). Finally, the average and beat-to-beat variability of total cosine R-to-T were not found statistically significant between both groups. Beat-to-beat assessment of VCG parameters may have diagnostic attributes that might help in identifying MI patients.

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Research paper thumbnail of Runtime Partial Reconfiguration for Embedded Vector Processors

Page 1. Runtime Partial Reconfiguration for Embedded Vector Processors Muhammad Z. Hasan and Soti... more Page 1. Runtime Partial Reconfiguration for Embedded Vector Processors Muhammad Z. Hasan and Sotirios G. Ziavras Electrical and Computer Engineering Department New Jersey Institute of Technology Newark, NJ 07102 {mzh3, ziavras}@njit.edu Abstract ...

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Research paper thumbnail of Relation between Beat‐to‐Beat QT Interval Variability and T‐Wave Amplitude in Healthy Subjects

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Design of an Automated Rail Transit System Controller: Malaysia Perspective

... Design of an Automated Rail Transit System Controller: Malaysia Perspective M. Ibn Ibrahimy, ... more ... Design of an Automated Rail Transit System Controller: Malaysia Perspective M. Ibn Ibrahimy, M. Asraful Hasan, M. Habib Ullah Department of Electrical and Computer Engineering, International Islamic University Malaysia. ...

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Research paper thumbnail of The Learning Curve for In Vivo Probe Based Confocal Laser Endomicroscopy (PCLE) for Prediction of Colorectal Neoplasia

Gastrointestinal …, 2009

Gastrointestinal Endoscopy, Volume 69, Issue 5, Pages AB364-AB365, April 2009, Authors:Anna M. Bu... more Gastrointestinal Endoscopy, Volume 69, Issue 5, Pages AB364-AB365, April 2009, Authors:Anna M. Buchner; Victoria Gomez; Kanwar R. Gill; Marwan Ghabril; Daniela Scimeca; Muhammad W. Shahid; Sami R. Achem; Michael F. Picco; Douglas Riegert-Johnson; Massimo Raimondo ...

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Research paper thumbnail of Granulocytic Sarcoma Presenting With Malignant Anasarca In a Patient With Secondary Acute Myeloid Leukemia

International journal of …, 2004

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Research paper thumbnail of Dawsonite-Type Precursors for Catalytic Al, Cr, and Fe Oxides: Synthesis and Characterization

Cheminform, 2006

Hydrothermal processing of aqueous MO (OH)-and HCO3-at≤ 100° C and pH of about 11 results in the ... more Hydrothermal processing of aqueous MO (OH)-and HCO3-at≤ 100° C and pH of about 11 results in the formation of dawsonite-type NH4M (CO3)(OH) 2, for M= Al or Cr. Whereas for M= Fe, the preparation course is interrupted by the precipitation of the non-dawsonitic ...

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