Electroporation for water disinfection: a proof of concept experimentation

This paper is a proof of concept showing the effectiveness of using irreversible electroporation (IRE) as a stage of water disinfection in the water treatment process. The IRE process essentially requires relatively high voltage pulses to pose a pulsed electric field across harmful microorganisms. In this paper, a laboratory-based solid-state Marx generator was built for this purpose and untreated water samples have been used to test the effectiveness of applying variable pulse width, magnitude and rate. All the pulses are unipolar rectangular. The tested samples are all from the same water source with the same coliform count. After performing the electroporation disinfection process the coliform count reached zero proving the effectiveness of IRE

Bilingual first language acquisition in Malay and English : a morphological and suprasegmental study in the development of plural expressions in a bilingual child

This thesis investigates the development of plural marking in a child raised in Malay and English simultaneously, from the morphological and prosodic perspective. For the morphological plural development, the child’s plural acquisition is analysed within the Processability Theory (PT) framework de Bot (1992) de Bot (1992) thus widening PT’s typological range of application to a language such as Malay, which belongs to the Austronesian family (Dryer & Haspelmath, 2013). PT has been tested for morphological development in L2 English (Di Biase, Kawaguchi, & Yamaguchi, 2015; Johnston, 2000) and several typologically different languages as well as bilingual first language acquisition (BFLA) such as Japanese-English (Itani-Adams, 2013). However, PT has not been empirically tested for any language of the Austronesian family nor in a Bilingual First Language Acquisition (BFLA) constellation involving Malay and English. The Malay-English language pair is interesting because of the remarkably different linguistic mechanisms used for encoding plurality in the two languages; morphologically, Malay marks plurality through distinct forms of reduplication such as rumah-rumah ‘houses’, buah-buahan’ (plural form of buah ‘fruit’) and bukit-bukau ‘hills’ (Sew, 2007). In contrast, English uses morphological inflections -s suffixed to the stem, e.g., cat/cats, dog/dogs, book/books (Carstairs-McCarthy, 2002). Malay reduplication, as previously shown, involves more than a single word, however, functionally speaking it is equivalent to one word plus a marker of plurality. Thus, prosodic mechanisms play a crucial role in distinguishing between mere repetition and grammatical reduplication in Malay (Gil, 2005). Since plurality is expressed very differently in each language, this study investigates how a bilingual child develops simultaneously two grammatical systems. The participant in this research is a female child named Rina, who was raised in Malay-English environment from birth. This investigation comprises of two parts; first is the longitudinal investigation of her plural acquisition from age 2;10 to 3;10. During this period, Rina was living in Australia, where the environmentally predominant language was English. The second complementary part is an investigation of Rina’s plural marking systems at age 4;8 when she had returned to Malaysia, where the predominant environmental language was Malay. For the longitudinal study, the database for the analyses was obtained from separate Malay and English recording sessions, which were conducted weekly from age 2;10 to 3;10. Likewise, the data for Rina’s plural expression at 4;8 was also obtained from separate Malay and English environment recordings. For the morphological plural development, results indicate that Rina developed two different systems to mark plurality in Malay and English. Her plural marking developed in the sequence predicted by PT. However, though she clearly distinguished the two languages, bidirectional influences from English to Malay and Malay to English were found in the corpus, both in the longitudinal study as well as at age 4;8. In the longitudinal study, it was found that in expressing plurals in Malay and English, Rina used various linguistic devices: one of the predominant strategies she employed in both languages was iteration, a strategy in which Rina expressed more than one objects by repeating the lexical item according to the number of individuated entities (hence four cats would be expressed as cat cat cat cat). Reduplication, the target grammatical Malay plural, only emerged at 3;8. Thus, we examine the prosodic development of the child’s iteration up till the emergence of reduplication. Findings indicate that the development from iteration to reduplication is gradual; the main acoustic correlate that she employed during the longitudinal study was final-syllable lengthening. She only began differentiating various prosodic mechanisms (such as pausing, duration and pitch) to distinguish repetition and reduplication in her plural marking at age 4;8. This study offers a new perspective on the interplay between the two languages in the early stages of grammatical development in a bilingual child. The specific features of plurality in Malay and English and how they develop in the bilingual child may shed light on the applicability of PT to BFLA. Also, the link between the child’s morphological development and prosodic mechanisms show that in acquiring the prosodic structures of reduplication, Rina creates partial and increasingly specific analyses of the grammatical forms, gradually approaching the conventional adult form

Multiscale 3D Shape Analysis using Spherical Wavelets

©2005 Springer. The original publication is available at www.springerlink.com: http://dx.doi.org/10.1007/11566489_57DOI: 10.1007/11566489_57Shape priors attempt to represent biological variations within a population. When variations are global, Principal Component Analysis (PCA) can be used to learn major modes of variation, even from a limited training set. However, when significant local variations exist, PCA typically cannot represent such variations from a small training set. To address this issue, we present a novel algorithm that learns shape variations from data at multiple scales and locations using spherical wavelets and spectral graph partitioning. Our results show that when the training set is small, our algorithm significantly improves the approximation of shapes in a testing set over PCA, which tends to oversmooth data

Utilization of Arabic Calligraphy to Promote the Arabic Identity in Packaging Designs

Letters are considered an important element in graphic design. Arabic calligraphy, specifically, is an important art that give letters aesthetic form. Arabic letters are used in many different ways to form words. These words are then used in typography giving information and communicating with consumers. In Arabic packaging designs, Arabic letters are not yet utilized to give the cultural identity to the brand and graphic design of the Arabic products in general. This paper focuses at using Arabic letters and digital calligraphy to enhance packaging identity of Arabian products. Keywords: Arabic calligraphy, typography, lettering, identity, digital calligraphy, packaging desig

Development of coordinated research efforts

The experience of ICRISAT with the use of Vertisols in semi-arid India indicates that the key to drastically improved productivity of Vertisols is the effective control of surface soil water which then enables rational use of the land for food and feed production. ILCA, therefore, developed and tested on-station and on-farm research in various highland Vertisol areas an animal-drawn implement for broadbed and furrow construction which was to combine technical efficiency of surface drainage construction with economic viability. Substantial increments in grain and biomass outputs due to enhanced surface drainage were recorded along with convincing economic returns to the farm in the application of this technology. In this chapter, history, objectives, rational, strategies, target areas and structure and organisation of the Vertisol project are presented; and the tasks of the advisory and technical committees, division the tasks of the advisory and technical committees, division of responsibilities between participating institutions, terms of reference for the technical committee, project phases and funding, and assistance by ICRISAt and IBSRAM are discussed

Towards Extended Bit Tracking for Scalable and Robust RFID Tag Identification Systems

The surge in demand for Internet of Things (IoT) systems and applications has motivated a paradigm shift in the development of viable radio frequency identification technology (RFID)-based solutions for ubiquitous real-Time monitoring and tracking. Bit tracking-based anti-collision algorithms have attracted considerable attention, recently, due to its positive impact on decreasing the identification time. We aim to extend bit tracking to work effectively over erroneous channels and scalable multi RFID readers systems. Towards this objective, we extend the bit tracking technique along two dimensions. First, we introduce and evaluate a type of bit errors that appears only in bit tracking-based anti-collision algorithms called false collided bit error in single reader RFID systems. A false collided bit error occurs when a reader perceives a bit sent by tag as an erroneous bit due to channel imperfection and not because of a physical collision. This phenomenon results in a significant increase in the identification delay. We introduce a novel, zero overhead algorithm called false collided bit error selective recovery tackling the error. There is a repetition gain in bit tracking-based anti-collision algorithms due to their nature, which can be utilized to detect and correct false collided bit errors without adding extra coding bits. Second, we extend bit tracking to 'error-free' scalable mutli-reader systems, while leaving the study of multi-readers tag identification over imperfect channels for future work. We propose the multi-reader RFID tag identification using bit tracking (MRTI-BT) algorithm which allows concurrent tag identification, by neighboring RFID readers, as opposed to time-consuming scheduling. MRTI-BT identifies tags exclusive to different RFIDs, concurrently. The concept of bit tracking and the proposed parallel identification property are leveraged to reduce the identification time compared to the state-of-The-Art. 2013 IEEE.This work was supported by the Qatar National Research Fund (a member of Qatar Foundation) through NPRP under Grant 7-684-1-127. The work of A. Fahim and T. ElBatt was supported by the Vodafone Egypt Foundation.Scopu

Angiogenic biomarkers in children with congenital heart disease: possible implications

<p>Abstract</p> <p>Background</p> <p>Vascular endothelial growth factor (VEGF), platelet derived endothelial cell growth factor/thymidine phosphorylase (PD-ECGF/TP) and leptin are known as potent angiogenic factors The objective of the study was to evaluate these angiogenic factors VEGF, PD-ECGF/TP and leptin in children with congenital heart disease (CHD) and the factors that lead to angiogenesis in such cases.</p> <p>Methods</p> <p>Sixty CHD children were studied and divided into two groups (n = 30); cyanotic-CHD (C-CHD) and acyanotic-CHD (A-CHD). Twenty five healthy children were included as controls.</p> <p>Results</p> <p>Significantly higher serum levels of VEGF, PD-ECGF/TP activity and leptin were detected in patients with CHD, particularly in patients with C-CHD. CHD patients with SpO₂<90%, pulmonary hypertension (PH), severe pulmonary stenosis (PS), detectable collaterals, cardiomegaly and/or heart failure showed significantly higher levels of these factors than those with higher SpO₂or those without these findings.</p> <p>Conclusion</p> <p>Hypoxia, PH and PS are important factors that lead to harmful angiogenesis. However, angiogenesis could be essential in some cases of CHD as coarctation of aorta to enhance renal perfusion. This may provide new ways for therapeutic strategies aiming at reducing or promoting angiogenesis in CHD to improve patient's outcome.</p