abid ali

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Optimizing Perceptual Shaping of a Digital Watermark Using Genetic Programming

Iranian Journal of Electrical and Computer …, 2004

Evaluation of dominant allelopathic weed through examining the allelopathic effects of four weeds on germination and seedling growth of six crops

Pakistan Journal of Botany

Leaf aqueous extracts were used to examine the allelopathic effects of Melilotus indica, Medicago... more Leaf aqueous extracts were used to examine the allelopathic effects of Melilotus indica, Medicago polymorpha, Elusine indica and Fumaria indica at four concentrations (10, 20, 30 and 40% W/V) on germination percentage, radicle and hypocotyl growth of six crops, namely Triticum aestivum, Hordeum vulgare, Medicago sativa, Trifolium spp., Raphanus sativus and Trigonella foenum-graecum. All weed extracts showed pronounced inhibitory effect on germination and seedling growth of tested crops, however inhibition was not consistent over studied parameters. Weeds exerted different allelopathic effects on test crops. Fumaria indica exhibited a significant negative effect on germination of all tested species at 20, 30 and 40% aqueous extracts, followed by Elusine indica and Medicago polymorpha, and Melilotus indica at 10% concentration level. Melilotus indica halted the hypocotyl growth of tested crops at 10 and 20% aqueous extracts, followed by F. indica at 30 and 40% dosage. Radicle growth of all recipient species was also stunted under the aqueous extract of M. indica at 20, 30 and 40%, followed by Medicago polymorpha except 10% concentration. Elusine indica showed negative effects on hypocotyl growth at higher concentrations as compared to Medicago polymorpha, whereas radicle growth was not affected under different aqueous extracts of E. indica. Leaf debris method was used in greenhouse to further authenticate the allelopathic effects of dominant allelopathic weed viz., Melilotus indica at four concentrations (0, 25, 50 and 75 g per 300 g of soil) on germination percentage, shoot and root length of four crops, namely Medicago sativa, Trifolium spp., Hordeum vulgare and Triticum aestivum. Powdered leaf debris of M. indica mixed with clay loam soil appeared to have strong allelopathic inhibition under higher concentrations on germination and shoot growth of Medicago sativa and Trifolium spp. as compared to Hordeum vulgare and Triticum aestivum, whereas inhibitory effects were more pronounced on Trifolium spp. and Triticum aestivum, in terms of their root length. Hence, M. indica proved a strong allelopathic weed that should be removed from field to avoid harmful effects during early growth stages of tested crops. Moreover, it is recommended that all these species be phytochemically examined for their allelopathic potential and possible development of environmental safe bio-herbicides to control weeds.

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Successful application of communication techniques to improve the systems development process* 1

Information & Management, 1989

Inadequate system requirements specifications reflect ineffective communication transactions betw... more

A Qualitative Exploration to Understand Access to Pharmacy Medication Reviews: Views from Marginalized Patient Groups

Pharmacy

Background: Vulnerable patients from marginalized groups (e.g., people with disabilities, people ... more Background: Vulnerable patients from marginalized groups (e.g., people with disabilities, people experiencing homelessness, black and minority ethnic communities) experience higher rates of ill-health, inequitable access to healthcare and low engagement with screening services. Addressing these disparities and ensuring healthcare provision is impartial and fair is a priority for the United Kingdom (UK) healthcare system. Aim: Using Levesque’s access conceptual framework, this study explored the views of patients from marginalized groups, specifically on how access to pharmacy services could be improved and their experiences of receiving a medication review service. Method: Qualitative data were collected via semi-structured interviews on patient experiences of pharmacy services and how access to these could be improved (n = 10). Interviews of patients who had received a medication review from their pharmacist were also conducted (n = 10). Using an interpretivist approach, five ‘dema...

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Thirst or Malnutrition: The Impacts of Invasive Insect Agrilus mali on the Physiological Status of Wild Apple Trees

Forests

Malus sieversii (Ledeb.) M. Roem is a tertiary relict tree species and a rare and valuable resour... more Malus sieversii (Ledeb.) M. Roem is a tertiary relict tree species and a rare and valuable resource for germplasm conservation. Since 1995, its wild forest has been severely destroyed by a devastating wood-boring beetle Agrilus mali Matsumura (Coleoptera: Buprestidae) in Xinjiang Uygur Autonomous Region, China. Where it invaded, this beetle infested more than 95% of the forests, and 80% of wild apple trees were reported dead in the hotspots. The physiological damage by A. mali infestation and their causality to tree death remain unclear. In this study, we attempted to explain the wild apple dieback from plant physiological perspectives, based on the hypothesis that the more damage M. sieversii suffered from the infestation of A. mali, the less water and fewer nutrients it could utilize. The study was conducted on trees with different extents of damage in wild apple forests over a large scale during 2016 and 2017. The stable carbon isotope ratio in leaves was analyzed to indicate tre...

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Molecular characterization of ticks infesting livestock in Khyber Pakhtunkhwa Province, Pakistan

International Journal of Acarology

Contamination features, geo-accumulation, enrichments and human health risks of toxic heavy metal(loids) from fish consumption collected along Swat river, Pakistan

Environmental Technology & Innovation

Dual Crosslinked Fluorinated Binder Network for High-Performance Silicon and Silicon Oxide Based Anodes in Lithium-Ion Batteries

ACS Applied Materials & Interfaces

Assessing Multiple Years’ Spatial Variability of Crop Yields Using Satellite Vegetation Indices

Remote Sensing

Assessing crop yield trends over years is a key step in site specific management, in view of impr... more Assessing crop yield trends over years is a key step in site specific management, in view of improving the economic and environmental profile of agriculture. This study was conducted in a 11.07 ha area under Mediterranean climate in Northern Italy to evaluate the spatial variability and the relationships between six remotely sensed vegetation indices (VIs) and grain yield (GY) in five consecutive years. A total of 25 satellite (Landsat 5, 7, and 8) images were downloaded during crop growth to obtain the following VIs: Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Soil Adjusted Vegetation Index (SAVI), Green Normalized Difference Vegetation Index (GNDVI), Green Chlorophyll Index (GCI), and Simple Ratio (SR). The surveyed crops were durum wheat in 2010, sunflower in 2011, bread wheat in 2012 and 2014, and coriander in 2013. Geo-referenced GY and VI data were used to generate spatial trend maps across the experimental field through geostatistical analy...

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Effect of Fe and Bi doping on LaCoO3 structural, magnetic, electric and catalytic properties

Journal of Materials Research and Technology

Is Good Governance an Approach to Civil Service Reforms?

The Pakistan Development Review

The Civil Service refers to the body of officials who carry out functions of government under the... more The Civil Service refers to the body of officials who carry out functions of government under the direction and supervision of the head of government [Rahman (1998), p. 2]. Excluded in this definition are employees of state-owned enterprises, the army, teachers, the judiciary and the police who, together with civil servants, collectively constitute the public sector. It is the civil service, and not the public sector, which will be the focus of this paper. Civil Service arrangements have emerged as important mediating institutions which interface between the state and its citizens. Traditionally these were monolithic, centralised, powerful structures with immense power over the management of the affairs of a nation, and often not very responsive to the changing needs of governance and public management.

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Impact of Vitamin D repletion on treatment of chronic lower back pain

INTERNATIONAL JOURNAL OF ENDORSING HEALTH SCIENCE RESEARCH (IJEHSR)

Background: Chronic lower back pain is precisely a distressing condition not only because of asso... more Background: Chronic lower back pain is precisely a distressing condition not only because of associated physical debilitation but the psychological hassle as well. Along with various etiological factors, low vitamin D levels in the body is also a significant cause of this ailment. This study focuses on monitoring the effect of Vitamin D repletion on intensity of chronic (non-traumatic) lower back pain. Methodology: This longitudinal-prospective analysis was conducted upon a sample of 374 lower back pain patients presenting with vitamin D deficiency from February to October 2018. Inquiries were made regarding basic socio-demographics, history of chronic lower back pain, dietary and medicinal supplement usage, hours of sun exposure and pain levels, assessed using a Visual Analogue Scale (VAS). The vitamin D levels and the VAS pain score were assessed upon baseline visit to the orthopedic outpatient department and followed up after 2 months (1 st follow up visit) and 6 months (2 nd follow up visit). Data obtained was analyzed using SPSS version 21.0 and Microsoft Excel 2013. Results: Among the 374 respondents, 52.67% were males while 47.33% were females with the mean age of 47.5 years. The mean baseline (pre-intervention) vitamin D levels were found to be 10.3 ng/ml, which raised significantly to 34.3 ng/ml. The mean (pre-intervention) VAS score dropped significantly, from 81.9 at baseline visit to 31.4 at 2 nd follow up visit. Conclusion: It is concluded that vitamin D repletion has a marked impact on reducing the intensity of chronic lower back pain. Future studies may confirm further to validate the findings of this research.

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Synergistic effect of doripenem in combination with cefoxitin and tetracycline in inhibiting NDM-1 producing bacteria

Future Microbiology

A migration aware scheduling technique for real-time aperiodic tasks over multiprocessor systems

IEEE Access

Multi-processor systems consist of more than one processor and are mostly used for computationall... more Multi-processor systems consist of more than one processor and are mostly used for computationally intensive applications. Real-time systems are those systems that require completing execution of tasks within a pre-defined deadline. Traditionally, multiprocessor systems are given attention in periodic models, where tasks are executed at regular intervals of time. Gradually, as maturity in multiprocessor design had increased; their usage has become very common for real-time systems to execute both periodic and aperiodic tasks. As the priority of aperiodic task is usually but not essentially greater than the priority of periodic task, they must be completed within the deadline. There is a lot of research works on multiprocessor systems with scheduling of periodic tasks, but the task scheduling is relatively remained unexplored for mixed workload of both periodic and aperiodic tasks. Moreover, higher energy consumption is another main issue in multiprocessor systems. Although it could be reduced by using energy aware scheduling technique, the response time of aperiodic tasks still increases. In the literature, various techniques were suggested to decrease the energy consumption of these systems. However, the study on reducing the response time of aperiodic tasks is limited. In this paper, we propose a scheduling technique that: (i) executes aperiodic tasks at full speed and migrates periodic tasks to other processors if their deadline is earlier than aperiodic tasks-reduces the response time; and (ii) executes aperiodic tasks with lower speed by identifying appropriate processor speed without affecting the response time-reduces energy consumption. Through simulations, we demonstrate the efficiency of the proposed algorithm and we show that our algorithm also outperforms the well-known Total Bandwidth Server (TBS) algorithm. INDEX TERMS real-time systems, multi-processor scheduling, energy consumption, performance, dynamic voltage and frequency scaling

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DNA extraction protocol for Cryptosporidium spps in stool samples (Adapted from GF-1 Soil Sample DNA extraction Kit) v1 (protocols.io.r9sd96e)

protocols.io

Evaluation of prevalence and risk factors associated with Cryptosporidium infection in rural population of district Buner, Pakistan

PLOS ONE

Background Cryptosporidium spp are important intestinal protozoan parasites that cause diarrhea i... more Background Cryptosporidium spp are important intestinal protozoan parasites that cause diarrhea in humans, domestic and wild animals. Its infection remains a main public health concern however, the epidemics in human being is still unclear, particularly in developing countries. There are several factors that may enhance the spreading of this parasite in human population especially in young children.

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Icephobic Strategies and Materials with Superwettability: Design Principles and Mechanism

Langmuir

Ice formation and accretion on surfaces is a serious economic issue in energy supply and transpor... more Ice formation and accretion on surfaces is a serious economic issue in energy supply and transports. Recent strategies for developing icephobic surfaces are intimately associated with superwettability. Commonly, the superwettability of icephobic materials depends on their surface roughness and chemical composition. This review critically categorizes the possible strategies to mitigate the icing problems from daily life. The wettability and classical nucleation theories are used to characterize the icephobic surfaces. Thermodynamically, the advantages/disadvantages of superhydrophobic surface are discussed to explain icephobic behavior. The importance of elasticity, SLIPSs, amphiphilicity, anti-freezing protein, organogels and stimuli-responsive materials has been highlighted to induce icephobic performance. In addition, the design principles and mechanism to fabricate icephobic surfaces with wettability are explored and summarized.

Molecular and computational approaches to understand resistance of New Delhi Metallo β- lactamase variants (NDM-1, NDM-4, NDM-5, NDM-6, NDM-7)-producing strains against carbapenems

Journal of biomolecular structure & dynamics, Jan 11, 2018

The discovery of NDM-1 and its variants has caused the emergence of antibiotic resistance in the ... more The discovery of NDM-1 and its variants has caused the emergence of antibiotic resistance in the community and hospital setting, causing major concern for health care across the globe. New Delhi Metallo-β-lactamase is known to hydrolyze almost all β-lactam antibiotics. Studies have shown the hydrolytic activates of NDM-1 and some of its variants, however a comparative study of these NDM variants has not been explored in detail. Hence, we proposed to check their catalytic activity by performing a comparative study between NDM-1 and its variants. The study was initiated to clone NDM variants (NDM-1, NDM-4, NDM-5, NDM-6 and NDM-7) followed by overexpression of the recombinant proteins to check their hydrolytic properties against β-lactam antibiotics. The minimum inhibitory concentration of carbapenems antibiotics for bla clone was found four fold increased, whereas no change was observed in the clones having other variants. The hydrolytic activity of carbapenem with NDM-5 variant was f...

Non-active site mutation (Q123A) in New Delhi metallo-β-lactamase (NDM-1) enhanced its enzyme activity

International journal of biological macromolecules, Jan 15, 2018

New Delhi metallo β-lactamase-1 is one of the carbapenemases, causing hydrolysis of almost all β-... more New Delhi metallo β-lactamase-1 is one of the carbapenemases, causing hydrolysis of almost all β-lactamase antibiotics. Seventeen different NDM variants have been reported so far, they varied in their sequences either by single or multiple amino acid substitutions. Hence, it is important to understand its structural and functional relation. In the earlier studies role of active site residues has been studied but non-active site residues has not studied in detail. Therefore, we have initiated to further comprehend its structure and function relation by mutating some of its non-active site residues. A laboratory mutant of NDM-1 was generated by PCR-based site-directed mutagenesis, replacing Q to A at 123 position. The MICs of imipenem and meropenem for NDM-1were found increased by 2 fold as compare to wild type and so the hydrolytic activity was enhanced (Kcat/Km) as compared to NDM-1 wild type. GOLD fitness scores were also found in favour of kinetics data. Secondary structure for α-...

Evaluation of antidiabetic potential of steroidal alkaloid of Sarcococca saligna

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, Jan 14, 2018

The demand for natural medicines has increased because of their limited adverse effects. The aim ... more The demand for natural medicines has increased because of their limited adverse effects. The aim of study is to explore the antidiabetic potential of isolated steroidal alkaloid from Sarcococca saligna in streptozotocin induced diabetic rats. To determine the antidiabetic activity of steroidal alkaloids, diabetes was induced in rats by injecting streptozotocin intraperitoneally at a dose of 40 mg/Kg. After a week of STZ injection the treatment were started and the 8th day was considered as the 1st day of treatment and up to four weeks the rats were treated with steroidal alkaloids. Animals were divided into five groups, group 1 considered as a control group by receiving normal saline (1 ml/Kg) twice daily and group 2, 3, 4 were treated with active compound sarcovagine-D, saracodine and holaphylline at the dose of 5 mg/Kg subcutaneously twice a day while group 5 was treated with a standard drug glibenclamide at a dose of 1 mg/Kg/day. The result showed that treated group 2 and 4 reduc...

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