Architecture of Task Manager for Real Time OS Explaining Real Time Operating Systems Issues

Javed Ahmad Shaheen MSCS 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.9

Complications of embedded applications are increasing. Within due time delivery to the market is also a pressure. So, the demand and use of real time operating systems is also increasing. However, it is an redundant fact that the Real Time Operating System (Real Time OS) can significantly degrade the performance. To face performance degradation, a Real-Time Task Manger (RTTM) has been presented in this paper. The Real-Time Task Manger is a hardware based extension to the processor that decreases performance bottleneck attributed to Real Time Operating System. Real-Time Task Manger decreases these performance bottlenecks introduced by Real Time Operating System by its hardware based architecture. The architecture of Real-Time Task Manger is being discussed in this paper provides an aid to deal with some common operations of Real Time Operating System that reason the performance degradation. For example event management, time management, and task scheduling. These operations have a property of some inborn parallelism. The Real-Time Task Manger uses this property to complete these operations in a constant time, and as a result, minimizes the overhead introduced by Real Time Operating System. The proposed architecture yields two benefits: It reduces the processor time taken by Real Time Operating System, and improves the response time to a considerable amount.

Therapeutic Effects of Botanicals Used in Management of Dhiq al-Nafas (Bronchial Asthma): An Evidence Based Review

Ahmad, Taufiq,Parray, Shabir Ahmad,Ahmad, Naseem,Khan, Javed Ahmad,Zohaib, Sharique Cellmed Orthocellular Medicine and Pharmaceutical 2019 셀메드 (CellMed) Vol.9 No.1

Bronchial asthma is one of the most common chronic diseases globally and currently affects approximately 300 million people worldwide. As per scientific data, approximately 10-12% of adults; and 15% of children are affected by the disease. The increasing global prevalence of the disease imposes a high health care costs into its mechanisms and treatment. Unani system of medicine (USM) is a well known traditional therapy for number of diseases since ancient times. Time has proved that USM has a special role in treatment of chronic diseases, due its special Usooleillaj (Line of treatment). Dhiq al-Nafas (bronchial asthma) is also considered as a chronic disease. Since ancient times, the disease was cured by number of single as well as compound formulations by renowned Unani scholars. This review provides a comprehensive summary of medicinal plant throughout the world, with reference to renowned Unani scholars and physicians for treatment of Dhiq al-Nafas. A number of Unani single and compound drugs, highly efficacious and safe drugs are available for the asthma. The data were taken from classical literature of USM, Modern reference books & electronic journals. The recent information was collected from different authentic search engines. This review will provide the centuries therapeutic information's of classical literature and recent scientific studies of 12 herbal drugs mentioned in USM, which will help the academia, clinicians, research scholars and post graduate students from Unani Medicine, Traditional & Complementary Medicine and other related disciplines, having research interest or work in the Unani medicine.

Mobile Computing: Wireless Networking Security Issues

Javed Ahmad Shaheen 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.10

Mobile wireless has detonated in popularity just of its simplicity, revolution in communication and Mobile computing has become very famous now days in reward of the services offered during the mobile communication and. Mobile computing has become the reality not the luxury. Mobile wireless market is increasing by leaps and bounds as Cell phones, mobile computing and communication devices have become very trendy because of their ease and portability. However, the use of such devices in this platform is accompanied by new security risks that must be recognized and addressed to protect the physical devices, the communication medium, and the information used. Security is key issue that needs to be considered. For this security protocols are proposed for different applications like Wireless Application Protocol, 802.11a etc. Most of them are based on the public and private key cryptography. The challenge for mobile network is in providing very large footprint of mobile services with high speed and security. In this paper, we have discussed security issues arising due to wireless networking of mobile computing in distributed systems. We discussed the operational model of mobile computing environment, and try to demonstrate proposed solutions. We also discuss security problems and mechanisms that can be applied one of three main components of mobile computing. The goal of paper is to point out some of the limitations, characteristics, applications and issues on security of mobile computing.

Differential antioxidative and biochemical responses to aluminium stress in Brassica juncea cultivars

Javed Ahmad,Mohd Affan Baig,Arlene Asthana Ali,Asma Abdulkareem Al‑Huqail,Mohamed Mohamed Ibrahim,Mohammad I rfan Q ureshi 한국원예학회 2018 Horticulture, Environment, and Biotechnology Vol.59 No.5

Aluminium (Al) toxicity in acidic soils limits crop production worldwide. We evaluated eleven genotypes of Brassica juncea (Mustard) under Al stress on basis of their growth and shortlisted two best among them for further comparative analysis. Our objective was to elucidate individual and differential oxidative damage and defence response elicited by Al treatment in selected mustard genotypes, ‘Pusa Tarak’ and ‘Pusa Vijay’. Thirty-day-old plants of both genotypes were subjected to Al stress for a period of 24 h and 72 h. Concentration of superoxides was visible much higher in leaves of ‘Pusa Vijay’ both at 24 h and 72 h, also confirmed by oxidative stress marker thiobarbituric acid reactive substances (TBARS). The activities of the enzymatic antioxidants superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), glutathione S-transferase (GST), and catalase (CAT) were significantly higher in ‘Pusa Tarak’ compared to control and ‘Pusa Vijay’ at both time stages. Levels of non-enzymatic antioxidants glutathiones and ascorbates were already higher in ‘Pusa Vijay’; however, Al treatment increased their levels in both genotypes with non-significant changes on inter-genotypes basis. More and significant decline by Al in chlorophylls was observed in ‘Pusa Vijay’. Interestingly, increase in proline content by Al was much prominent in ‘Pusa Tarak’ compared to ‘Pusa Vijay’. The in vitro antioxidant capacity estimation of mustard genotypes, evaluated by measuring 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and hydroxyl radical scavenging (HRSA) activities proved that extract of ‘Pusa Tarak’ can detoxify more radicals than ‘Pusa Vijay’. We conclude that ‘Pusa Tarak’ can upregulate cellular antioxidants and osmoregulation, and quench more radicals compared to ‘Pusa Vijay’. The results will contribute for selection of better Brassica genus to be grown in Al rich acidic soils, and help in designing strategies for crop breeding and cultivation.

Macroeconomic Response to Oil and Food Price Shocks: A Structural VAR Approach to the Indian Economy

Javed Ahmad Bhat,Aadil Ahmad ganaie,Naresh Kumar Sharma 한국국제경제학회 2018 International Economic Journal Vol.32 No.1

The study analyzed the dynamic impact of oil and food price shocks on the macroeconomy of India, using the monthly time series data from April 1994 to May 2016 in a structural vector autoregression (SVAR) framework. Being a net food exporter and net oil importer, the economy is found to face deleterious impacts of global oil and food price shocks on its macroeconomic performance. Output responds negatively to oil and food price hikes along with their volatility and positively to the fall in these prices. Inflation responds positively to all the three transformations of shocks with no signs of coming down, highlighting the price downward inflexibility in India. The study could not establish any evidence of negative demand shocks in face of oil and food price volatility. Central bank responds with a contractionary policy stance to negate the influences of external shocks. Forecast error variance decomposition points out the dominance of external shocks in influencing the domestic variables after their own shocks. Finally, the inflation downward rigidity is observed even in the long run.

Fasad (Venesection): An important regimental therapy in Unani System of Medicine

Khan, Javed ahmad,Nikhat, Shagufta,Ahmad, Naseem,Zohaib, Sharique,Parray, Shabir ahmad Cellmed Orthocellular Medicine and Pharmaceutical 2017 셀메드 (CellMed) Vol.7 No.4

Fasad i.e. venesection is an old classical method of treatment in the Unani system of medicine. Fasad is Arabic word which means "to open". In the process, complete evacuation which drains out blood and dominating humours mixed with blood from veins. Fasad is carried out when the kamiyat (quantity) of the blood is excess in the body and patient is either exposed to the risk of developing a disease or has actually developed one. In classical literature of Unani system of medicine, physicians wrote a lot about this procedure. The details of venesection is mentioned in the given paper on the basis of classical literature including history, indications, types, amount of blood to be venesected, time, person, procedure, complications and special focus has been made on the number of vessels to be venesected and their benefits with respected to disease and condition.

Morpho-Anatomical Responses of Trigonella foenum graecum Linn. to Induced Cadmium and Lead Stress

( Syed Hilal Ahmad ),( Zafar Reshi ),( Javed Ahmad ),( Muhammad Iqbal ) 한국식물학회 2005 Journal of Plant Biology Vol.48 No.1

Effect of different concentrations of cadmium (0, 5, 15, 30, 50 ㎍/g of soil) and lead (0, 25, 50, 100, 200 ㎍/g of soil) on morphological and anatomical features of Trigonella foenum graecum Linn. was studied at pre-flowering, flowering and post flowering stages. Morphological attributes, like number of leaves per plant, total leaf area of the plant and single leaf area, dry mass of stem, root and leaf, length of shoot, root and plant, size of stomata and stomatal pore, and the density of stomata on both epidermises were significantly reduced under metal stress at all the developmental stages. Trichome length on both epidermises increased while their density decreased under metal stress. Under cadmium stress, proportion of pith and vasculature decreased but cortex increased in the stem. Under lead stress, proportion of pith and vasculature increased but cortex decreased in the stem. In the root, proportion of vasculature and pith increased and cortex decreased in response to both cadmium and lead stresses. Dimensions of vessel element and xylem fibre in the wood of stem and root decreased under the cadmium and lead stresses. Decrease in density of vessel element in the stem and root with advancement of age was more pronounced in plants grown under cadmium and lead stresses.

Anticancer activities of Papaya (Carica papaya): A Review

Parray, Zahoor ahmad,Parray, Shabir ahmad,Khan, Javed ahmad,Zohaib, Sharique,Nikhat, Shagufta Cellmed Orthocellular Medicine and Pharmaceutical 2018 셀메드 (CellMed) Vol.8 No.4

Cancer is considered one of the deadly diseases in the world. According to WHO cancer now causes more deaths than all coronary heart disease. The incidence and mortality of the worldwide major cancers are now available in the GLOBOCAN series of the International Agency for Research on Cancer. The transition of global demographic and epidemiologic shows that burden of cancer will increase particularly in low and middle income countries, with over 20 million new cancer cases expected annually as early as 2025. Medicinal plants made known to be prospective and useful job for the treatment of several diseases and disorders from prehistoric days to nowadays. One of the commonly used plants, which have supporting evidences from the recent scientific data for the different types of cancers, is Carica papaya. Papaya (Carica papaya) is widely used as folk caloric herbal medicine, being a powerhouse of nutrients and accessible throughout the year. It is a rich source of three powerful antioxidants, the minerals, vitamins and contains high content of fibre. Carica papaya has provided many remedies for various diseases from ancient days to nowadays, and is regarded as a Nutraceutical. Because of this comprehensive medicinal value of Carica papaya, we are trying here to convey the reports studied especially for the anticancer activities of the age-old fruit, which will help researchers to pull in concert data and may be a "lead" for the one of the dangerous disease in the world.

Optimization of Culture Media for Enhanced Chitinase Production from a Novel Strain of Stenotrophomonas maltophilia Using Response Surface Methodology

( Khan Minhaj Ahmad ),( Rifat Hamid ),( Mahboob Ahmad ),( M. Z. Abdin ),( Saleem Javed ) 한국미생물 · 생명공학회 2010 Journal of microbiology and biotechnology Vol.20 No.11

Chitinase is one of the most important mycolytic enzymes with industrial significance. This enzyme is produced by a number of organisms including bacteria. In this study, we describe the optimization of media components with increased production of chitinase for the selected bacteria, Stenotrophomonas maltophilia, isolated from soil. Different components of the defined media responsible for influencing chitinase secretion by the bacterial isolate were screened using Plackett-Burman experimental design and were further optimized by Box-Behnken factorial design of response surface methodology in liquid culture. Maximum chitinase production was predicted in medium containing 4.94 g/l chitin, 5.56 g/l maltose, 0.62 g/l yeast extract, 1.33 g/l KH2PO4, and 0.65 g/l MgSO4·7H2O using response surface plots and the point prediction tool of the DESIGN EXPERT 7.1.6 (Stat-Ease, USA) software.

Association of a VDR Gene Polymorphism with Risk of Colorectal Cancer in Kashmir

Rasool, Sabha,Kadla, Showkat Ahmad,Khan, Tanzeela,Qazi, Falak,Shah, Nisar Ahmad,Basu, Javed,Khan, Bilal Ahmad,Ahktar, Qulsum,Sameer, Aga Syed,Ganai, Bashir Ahmad Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.10

Roles of the vitamin D receptor in etiology of cancers, including colorectal cancer, have been repeatedly stressed in different parts of the world. A case control study aimed to evaluate the relationship between the two was therefore initiated in Kashmir, known both for its increasing incidence of gastrointestinal cancers and deficiency of micro-nutrients especially vitamin D. The study included a total of 617 subjects (312 colorectal cancer cases and 305 controls), with sampling carried out over a period of 5 years. DNA samples from the blood of the subjects were analyzed for start codon Fok I VDR polymorphism. We obtained a 1.3 fold increased risk among individuals homozygous for f variants as compared to subjects homozygous for F allele (odds ratio OR 1.3, 95%CI, 0.861-1.65). Our study also showed statistically significant results when dwelling and tumor location characteristics were stratified with Fok I polymorphism, all of which suggests a possible role of Fok I polymorphism in the etiology of CRC in Kashmir.