311 research outputs found

    TransEdge: Supporting Efficient Read Queries Across Untrusted Edge Nodes

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    We propose Transactional Edge (TransEdge), a distributed transaction processing system for untrusted environments such as edge computing systems. What distinguishes TransEdge is its focus on efficient support for read-only transactions. TransEdge allows reading from different partitions consistently using one round in most cases and no more than two rounds in the worst case. TransEdge design is centered around this dependency tracking scheme including the consensus and transaction processing protocols. Our performance evaluation shows that TransEdge's snapshot read-only transactions achieve an 9-24x speedup compared to current byzantine systems

    Role of ICT in Community-Oriented Policing in South Asia: Challenges and Opportunities

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    Community-oriented policing (COP) as a model has found widespread acceptance throughout the world both in developed and developing countries. Similarly, Information and Communication Technologies (ICTs) have been embraced by many developed countries to augment COP initiatives. However, very little is known about the application of ICTs in COP in developing countries, particularly South Asia. In this article, we review the current ICT-based COP initiatives by focusing on some of the selected projects from developed countries and South Asia. The paper has used COP in the Khyber Pakhtunkhwa (KP) province of Pakistan as a case. While meaningful insights can be derived through learning from the experiences of developed countries, we highlight some major issues and challenges that are likely to be faced while implementing ICT based COP in South Asia. Moreover, we provide an overview of some exciting opportunities that arise as a result of embracing ICTs to enhance COP efforts for building trusting community-police relations and hence improving human security in the region

    ASSESSMENT OF FARMERS’ KNOWLEDGE REGARDING CHILD LABOR IN AGRICULTURE: A CASE STUDY OF COTTON GROWERS IN DISTRICT BAHAWALPUR

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    The work which affects the education, dignity and health of a child is known as child labor. It exists in agriculture sector of Pakistan mostly in the form of hazardous work. The main objective of the study was to investigate the degree of knowledge of cotton growers on child labor issue with special reference to Decent Work of International Labor Organization (ILO). The study was conducted in Bahawalpur district where Decent Work has been implemented by World Wide Fund for Nature (WWF)-Pakistan since 2013 as a part of its Sustainable Agriculture Program. Three categories of farmers were identified among a total of 388 selected cotton growers i.e. Farmers having high level of awareness, farmers having basic level of awareness and farmers having no awareness of child labor. Farmers were also categorized into three groups on the basis of their land holding i.e. (Category ‘a’) 1-7 acres, (b) >7-20 acres and (c) >20-50 acres. The data was analyzed through descriptive statistical method. Among category ‘a’ 7.5%, 88.7% and 3.7% of the farmers had advance, basic and no awareness, respectively. Among category ‘b’ 7.2%, 88.5% and4.2% farmers had advance, basic and no awareness, respectively. Among category ‘c’ 5.8%, 90.2% and 3.9% farmers had advance, basic and no awareness, respectively. Since there was a large proportion of those farmers who have only basic level of awareness on child labor among all the three land holding categories, therefore, there is a need to educate farmers on preventing child labor at their farms to promote sustainable cotton

    Habitat use pattern and conservation status of smooth–coated otters Lutrogale perspicillata in the Upper Ganges Basin, India

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    Modelo de uso del hábitat y estado de conservación de las nutrias lisas Lutrogale perspicillata en la zona alta de la cuenca del Ganges, India Las nutrias lisas habitan en varios sistemas fluviales importantes del Asia meridional y sus necesidades medioambientales las vinculan con problemas de seguridad alimentaria e hídrica, debido a la elevada densidad de humanos. La falta de datos de referencia sobre su distribución y ecología es otra limitación notable que la especie está afrontando en la India. El presente estudio se vio impulsado por el rápido descenso de la población de nutrias en el país y se centra en estimar el estado de conservación, el modelo de uso del hábitat y las amenazas asociadas en la zona alta de la cuenca del río Ganges (Asia septentrional). Nuestros resultados contribuyen a comprender mejor las complejas interacciones ecológicas y a elaborar medidas de conservación eficaces. Junto con las preferencias de hábitat, en el estudio también se informa sobre nuevas ubicaciones en la distribución de la especie. Asimismo se ponen de relieve las deficiencias existentes en la conservación de la especie y se sugieren las zonas cuya ordenación debería ser prioritaria.Smooth–coated otters inhabit several major river systems in southern Asia, and their environmental requirements link them to food and water security issues as the region is so densely populated by humans. The lack of baseline data on their distribution and ecology is another major constraint that the species is facing in India. The present study was stimulated by the rapid decline in the otter’s population in the country and focuses on estimating the conservation status, habitat use pattern, and associated threats in the upper Ganges River Basin (N India). Our findings contribute towards a better understanding of the complex ecological interactions and the design of effective conservation measures. Coupled with the habitat preferences, the study also provides new locations in the species distribution. This paper highlights the gap areas in the conservation of the species and suggests areas that should be prioritized for management.Modelo de uso del hábitat y estado de conservación de las nutrias lisas Lutrogale perspicillata en la zona alta de la cuenca del Ganges, India Las nutrias lisas habitan en varios sistemas fluviales importantes del Asia meridional y sus necesidades medioambientales las vinculan con problemas de seguridad alimentaria e hídrica, debido a la elevada densidad de humanos. La falta de datos de referencia sobre su distribución y ecología es otra limitación notable que la especie está afrontando en la India. El presente estudio se vio impulsado por el rápido descenso de la población de nutrias en el país y se centra en estimar el estado de conservación, el modelo de uso del hábitat y las amenazas asociadas en la zona alta de la cuenca del río Ganges (Asia septentrional). Nuestros resultados contribuyen a comprender mejor las complejas interacciones ecológicas y a elaborar medidas de conservación eficaces. Junto con las preferencias de hábitat, en el estudio también se informa sobre nuevas ubicaciones en la distribución de la especie. Asimismo se ponen de relieve las deficiencias existentes en la conservación de la especie y se sugieren las zonas cuya ordenación debería ser prioritaria

    Single nucleotide substitution mutations and polymorphisms in ECM1 gene in lipoid proteinosis in siblings of a Pakistani family

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    A number of mutations in extracellular matrix protein 1 (ECM1) that is a glycoprotein and expressed in skin and other tissues are reported to cause a rare, autosomal recessive disorder called lipoid proteinosis (LP). The peculiar manifestation of LP is hoarseness of voice caused by laryngeal infiltration in infancy. Skin and mucous membrane changes clinically become apparent, and the disease typically follows a slowly progressive, yet often benign, course. About 300 cases of LP have been reported, but occurrence in siblings is rare. In this study, two siblings (18 and 24-year-old) of a Pakistani family were reported to have LP. This study presents two brothers with scaly itchy lesions on whole body, hoarse voice and macroglossia. Their deceased father had similar clinical manifestations but mother, younger brother and sister were unaffected. Blood from affected and clinically unaffected family members were collected with informed consent. The ECM1 gene containing 10 exons were amplified and sequenced. Both patients showed non-pathogenic missense and silent mutations in exon 6 and 8. In exon 6, a nucleotide C was substituted to T (C→T) at codon 2, in patient 1. This nonpathogenic missense mutation causes appearance of amino acid cysteine instead of arginine that is part of normal ECM1 protein. In patient 2, polymorphism of nucleotide C to T (C/T) was observed observed in exion 6 that may lead to the appearance of cysteine and/or arginine in the resulting gene product. In exon 8, a nucleotide G was substituted to A (G→A) at codon 53, in patient 1. This substitution leads to a silent mutation as serine is coded by both forms of codon. In patient 2, polymorphism of nucleotide G to A (G/A) was observed in exion 8 that do not cause any change in the coded amino acid. These findings represent a set of missense and silent mutations supporting an unusual function of ECM1 protein, broadening the spectrum of disease-linked mutations in rare cases of LP.Key words: Lipoid proteinosis, extracellular matrix protein 1 (ECM1), missense, silent mutation, single nucleotide polymorphism, exons 6 and 8, genodermatosis

    On some Mann's type iterative algorithms

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    AbstractFirst we present some interesting variants of Mann's method. In the last section, we show that many existing results in the literature are concrete realizations of our general scheme under varying assumptions on the coefficients

    Role of diversion ileostomy in low rectal cancer: A randomized controlled trial

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    AbstractIntroduction: Rectal cancer continues to be devastating malignancy worldwide. Sphincter preservation is the need of the hour. Distal anastomosis is more prone to leaks. Proximal diversion in form of ileostomy may be used to protect distal anastomosis. Aim: To compare two groups of low anterior resection with and without diversion ileostomy in rectal cancer patients. Material and methods: A prospective, hospital based study of 78 rectal carcinoma patients were taken for the study. Inclusion criteria was operable rectal cancer 4–12 cm from anal verge. Patients were randomized into two groups. Group – A (34 patient) patients with low anterior resection with ileostomy (LAR with ileostomy); Group – B (44 patients) patients with low anterior resection without ileostomy (LAR without ileostomy). Quality of life was assessed by scoring done by self designed method. A total score of 0–20 given for various parameters. Results: Skin excoriation was the commonest complication. Stomal retraction and stomal obstruction was seen in 1 patient each (3%). Hypokalemia was the commonest electrolyte imbalance present in ileostomy group. Anastomotic leak was present in 6% of Group A and 11% of Group B patients. Mean time of closure of ileostomy was 16 ± 4.3 weeks. Conclusion: LAR with ileostomy has certain advantages over LAR without ileostomy in terms of anastomotic leak, postoperative ileus, resumption of diet, wound infection, small bowel obstruction and in terms mortality and recurrence. However stoma related complications were main disadvantage in LAR with ileostomy

    A sense annotated corpus for All-Words Urdu Word Sense Disambiguation

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    Word Sense Disambiguation (WSD) aims to automatically predict the correct sense of a word used in a given context. All human languages exhibit word sense ambiguity and resolving this ambiguity can be difficult. Standard benchmark resources are required to develop, compare and evaluate WSD techniques. These are available for many languages but not for Urdu, despite this being a language with more than 300 million speakers and large volumes of text available digitally. To fill this gap, this study proposes a novel benchmark corpus for the Urdu All-Words WSD task. The corpus contains 5,042 words of Urdu running text in which all ambiguous words (856 instances) are manually tagged with senses from the Urdu Lughat dictionary. A range of baseline WSD models based on n-grams are applied to the corpus and the best performance (accuracy of 57.71%) is achieved using word 4-grams. The corpus is freely available to the research community to encourage further WSD research in Urdu
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