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Search Results: 1 - 10 of 21169 matches for " Mohammad Ashraf Khan "
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Managing Computing Infrastructure for IoT Data  [PDF]
Sapna Tyagi, Ashraf Darwish, Mohammad Yahiya Khan
Advances in Internet of Things (AIT) , 2014, DOI: 10.4236/ait.2014.43005
Abstract:
Digital data have become a torrent engulfing every area of business, science and engineering disciplines, gushing into every economy, every organization and every user of digital technology. In the age of big data, deriving values and insights from big data using rich analytics becomes important for achieving competitiveness, success and leadership in every field. The Internet of Things (IoT) is causing the number and types of products to emit data at an unprecedented rate. Heterogeneity, scale, timeliness, complexity, and privacy problems with large data impede progress at all phases of the pipeline that can create value from data issues. With the push of such massive data, we are entering a new era of computing driven by novel and ground breaking research innovation on elastic parallelism, partitioning and scalability. Designing a scalable system for analysing, processing and mining huge real world datasets has become one of the challenging problems facing both systems researchers and data management researchers. In this paper, we will give an overview of computing infrastructure for IoT data processing, focusing on architectural and major challenges of massive data. We will briefly discuss about emerging computing infrastructure and technologies that are promising for improving massive data management.
On Generalized Jordan Triple -Higher Derivations in Prime Rings
Mohammad Ashraf,Almas Khan
ISRN Algebra , 2014, DOI: 10.1155/2014/684792
Abstract: Let be a ring and let be a Lie ideal of . Suppose that are endomorphisms of , and is the set of all nonnegative integers. A family of mappings is said to be a generalized -higher derivation (resp., generalized Jordan triple -higher derivation) of if there exists a -higher derivation of such that , the identity map on , , and (resp., hold for all and for every If the above conditions hold for all , then is said to be a generalized -higher derivation (resp., generalized Jordan triple -higher derivation) of into . In the present paper it is shown that if is a noncentral square closed Lie ideal of a prime ring of characteristic different from two, then every generalized Jordan triple -higher derivation of into is a generalized -higher derivation of into . 1. Introduction Let be an associative ring with center (may be without identity element). For any , will denote the usual Lie product and the element will be denoted by . An additive subgroup of is said to be a Lie ideal of if . A Lie ideal of is said to be square closed Lie ideal of if for all . An additive mapping is said to be a derivation on if for all . Also, an additive mapping is called a Jordan triple derivation if for all . Herstein [1, Lemma 3.5] showed that on a 2-torsion free ring every derivation is Jordan triple derivation, but the converse need not be true in general, whereas Bre?ar [2] proved that on a 2-torsion free semiprime ring every Jordan triple derivation is a derivation. The concept of derivations was further extended to -derivation. Let be the endomorphisms of . An additive mapping is said to be a -derivation of if holds for all . Moreover, an additive mapping is said to be a Jordan triple -derivation of if holds for all . Bre?ar [3] introduced the notion of generalized derivation as follows: an additive mapping is said to be a generalized derivation on if there exists a derivation on such that for all . An additive mapping is said to be a generalized -derivation on if there exists a -derivation on such that for all (for reference see [4]). Correspondingly, the concept of generalized Jordan triple derivations was defined by Wu and Lu [5]. An additive mapping is said to be a generalized Jordan triple derivation on if there exists a Jordan triple derivation on such that for all . They also showed that every generalized Jordan triple derivation on a 2-torsion free prime ring is a generalized derivation. Further, Liu and Shiue [6] extended this result for generalized Jordan triple -derivation. An additive mapping is said to be a generalized Jordan triple -derivation on if there exists
Critical analysis of correlation and heritability phenomenon in the silkworm, Bombyx mori (Lepidoptera: Bombycidae)  [PDF]
Tribhuwan Singh, Madan Mohan Bhat, Mohammad Ashraf Khan
Advances in Bioscience and Biotechnology (ABB) , 2011, DOI: 10.4236/abb.2011.25051
Abstract: Correlation and heritability studies of quantitative traits are a pre-requisite for judicious selection for genetic improvement of complex characters of economic importance. The success of selection is governed by the degree to which the desired trait is transmitted to the succeeding generation. The nature of selection is to be given due consideration at appropriate developmental stages for pursuing selection in desired direction while improving or evolving high productive breeds or hybrids of the silkworm. Characters showing high heritability as well as high genetic advance respond better to simple phenotypic selection while those having low heritability and low genetic advance may respond better to mass selection. Characters showing high heritability and low genetic advance may yield good response to hybridization and recurrent selection. An attempt has been made in this review article to briefly discuss the magnitude of correlation and heritability in selection strategies for the improvement of quantitative traits in desired direction in the silkworm, Bombyx mori (L.).
Quality of Paneer Made from High Solid Reconstituted Milk as Influenced by Calcium Phosphate Incorporation
Shahnawaz Umer Khan,Mohammad Ashraf Pal
Journal of Food Technology , 2013, DOI: 10.3923/jftech.2010.169.174
Abstract: A study was conducted to evaluate the quality characteristics of paneer, a directly acidified non-rennet fresh variety of cheese, made from reconstituted milk of higher total solid content so as to produce larger quantities of paneer per batch of milk taken for economical production of paneer. The paneer made from reconstituted milk of higher total solids content is known to produce quality wise inferior paneer. In an attempt to improve the quality of paneer from high solid reconstituted milk calcium phosphate was incorporated at different levels with a view to aid coagulation and improves the texture, cohesiveness and overall acceptability. It was found that the incorporation of different levels of calcium phosphate viz., 1, 1.5 and 2% to the reconstituted milk prior to acidification brought about significant improvement in the yield, total solids recovery, fat recovery, protein recovery and in sensory parameters like appearance, body and texture and overall acceptability scores at all levels of incorporation compared to control. Within the three calcium phosphate levels, 1.5% showed numerical superiority over the other two levels. In order to improve the quality characteristics of paneer from reconstituted milk it is suggested that calcium phosphate at the rate of 1.5% may be added prior to its manufacture.
Primary renal synovial sarcoma
Girish D. Bakhshi,Arshad S. Khan,Aftab S. Shaikh,Mohammad Ashraf A. Khan
Clinics and Practice , 2012, DOI: 10.4081/cp.2012.e44
Abstract: Primary Renal Sarcoma is rare tumor comprising only 1% of all renal tumours. Synovial sarcomas are generally deep-seated tumors arising in the proximity of large joints of adolescents and young adults and account for 5-10% of all soft tissue tumours. Primary synovial sarcoma of kidney is rare and has poor prognosis. It can only be diagnosed by immunohistochemistry. It should be considered as a differential in sarcomatoid and spindle cell tumours. We present a case of 33-year-old female, who underwent left sided radical nephrectomy for renal tumour. Histopathology and genetic analysis diagnosed it to be primary renal synovial sarcoma. Patient underwent radiation therapy and 2 years follow up is uneventful. A brief case report with review of literature is presented.
A Comparison of Change Detection Analyses Using Different Band Algebras for Baraila Wetland with Nasa’s Multi-Temporal Landsat Dataset  [PDF]
Mohammad Ashraf, Rabeya Nawaz
Journal of Geographic Information System (JGIS) , 2015, DOI: 10.4236/jgis.2015.71001
Abstract: Wetlands are those landscapes which are saturated with water or covered by water either perennially or for a major part of the year. Due to transforming nature of the wetlands from aquatic to terrestrial, the related physical features are not easy to be monitored. With the recent advancement in Remote sensing technique, the feature extraction of wetland with the help of different satellite derived band algebras including Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Modified NDWI (MNDWI), Normalized Difference Moisture Index (NDMI) is being used by experts. The common diagnostic features of wetlands are surface water, swamps and aquatic vegetation. The present study is based on a comparison between these four indices. Baraila wetland of Vaishali district Bihar is selected as a site for the study because the surface water of this “BAT” shaped wetland has decreased rapidly in last half decade which is alarming for the related ecology and biodiversity.
Ethyl Cellulose-Based Solid Matrix System for Sustaining Release of Naproxen
Muhammad Khan Sarfraz,Nisar -ur-Rehman,Saeed Ahmed,Mohammad Ashraf
Pakistan Journal of Biological Sciences , 2007,
Abstract: The present study was conducted to develop sustained release matrix tablets of naproxen with the help of a hydrophobic polymer, Ethyl Cellulose (EC). Matrix tablets were prepared by incorporating various proportions of EC in the matrix system using wet granulation technique. The rate of drug release from the matrix tablets was found to be very slow and could not produce the desired release profiles in 12 h testing time. However, the tablets prepared by slightly modifying the wet granulation method exhibited comparatively linear and desirable release rate. No significant difference in the release profiles of naproxen matrix tablets was observed at different stirring speeds and storage conditions.
Does Intravenous Fentanyl Affect Apgar Scores and Umbilical Vessel Blood Gas Parameters in Cesarean Section Under General Anesthesia?
Maziyar Maghsoudloo,Negar Eftekhar,Mohammad Ali Noyan Ashraf,Zahid Husain Khan
Acta Medica Iranica , 2011,
Abstract: The administration of opioids during induction of general anesthesia is a matter of challenge in obstetric anesthesia. The aim of this study was to investigate the effects of intravenous fentanyl before induction of general anesthesia on the"1st and 5th minutes' Apgar scores" in neonates with elective cesarean surgery. In a double blinded randomized clinical trial on 60 parturients undergoing elective cesarean surgeries under general anesthesia in Vali-e-Asr Hospital, in Tehran, Iran, were divided randomly into two groups; the intervention group and the control. In intervention group, intravenous fentanyl 1μg/kg was administrated three minutes before anesthesia induction. The induction route, laryngoscopy and tracheal intubation were the same in the groups. The blood pressure (BP) and heart rate (HR) measures were recorded before anesthesia induction (as baseline measures) and so during laryngoscopy and intubation. The 1st and 5th minute's apgar scores and the pH of umbilical cord arterial and venous samples were compared in two groups. The systolic and diastolic blood pressure, mean arterial pressure and heart rate changes before and after induction and in various times after intubation showed significant difference between two groups (P<0.05). The 1st and 5th minute's Apgar scores of the neonate and umbilical cord arterial and venous blood gas analysis were not statistically different between two groups (P>0.05). Based on the results of this study, the administration of 1 μg/Kg intravenous Fentanyl, three minutes before induction of anesthesia for cesarean section can lead to a stable hemodynamic situation in mother and showed no effects on neonate`s outcomes. Fentanyl showed no effects on Apgar scores and on umbilical cord arterial and venous blood gases analysis and it probably can be used safely in elective cesarean surgeries. More studies are required to obtain a clear view.
LIVE RENAL DONORS
HAFIZ SHAHZAD ASHRAF,IMRAN HYDER, MD,MOHAMMAD USMAN KHAN,Shafique Ahmed
The Professional Medical Journal , 2010,
Abstract: Objectives: To compare the findings of helical computed tomographic angiography and intra-operative findings in live relateddonors. To evaluate the accuracy of helical computed tomography with advanced 3D techniques in depicting the renal vasculature,parenchymal and anatomy of collecting system. Setting: Sheikh Zayed Post Graduate Medical Institute and National Institute of kidneydiseases Lahore. Material and Method: Between June 2006 to May 2009 eighty potential donors underwent CT angiogram as a part of theirpreoperative workup. We retrospectively studied the CT angiogram and compared the finding with the surgical findings. The results werereviewed with radiologists to determine the discrepancy in discordant cases. Results: The accuracy of CT angiography was 93.40% to predictnumber of vessels. Five arteries and one vein was missed, this disconcordant comprised 7.59% during initial CT interpretation. The overall concordance between CT angiography and operative findings in delineating the arterial anatomy was found in 74(93.67%) and venous in 78 (98.73%) donors. All CT scans demonstrated normal collecting system except one, which showed a dilated right pelvicalical system and ureter. Simple renal cysts about the size of 2-4 cm were found in the four left kidneys. CT scan supplied additional important anatomical information including kidney size and the presence of nephrolithiasis. Conclusion: Helical CT angiography is very specific for arterial and venous anatomy as well as other anatomical and functional details. It provides all the information required by a surgeon. It can become the single imaging modality for preoperative assessment of potential donors in place of conventional angiography and intravenous urography. CT angiography is minimally invasive and cost effective.
Rapunzel syndrome: The unsuspected culprit
Mohammad Ezzedien Rabie, Abdul Rahman Arishi, Ashraf Khan, Hussein Ageely, Gaffar Abbas Seif El-Nasr, Mohammad Fagihi
World Journal of Gastroenterology , 2008,
Abstract: Trichobezoar is a rare intriguing disorder in which swallowed hairs accumulates in the stomach. Being indigestible and slippery, it could not be propulsed and becomes entrapped within the stomach. Large amounts can thus accumulate over the years forming a hair ball. Rapunzel syndrome is a variant where hair accumulation reaches the small gut and beyond in some cases. Although the syndrome has been known for many years, only 24 cases have been reported in the literature and the discovery of a new case is always surprising. In this report, we present two cases discovered within a period of three months. One of them was pregnant and had small bowel intussusception and perforation, a very rare combination. We hereby add two more cases to the literature. To our knowledge, this is the first report on two cases of Rapunzel syndrome, the diagnosis of which demands a high index of suspicion.
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