Software process improvement is the backbone of software organizations. Implementation of software process improvement in different organizations is most challenging task. The situation is worse in software organizations belonging to developing countries like Pakistan. The reason is distinction in norms and values of the culture when compared with developed countries. The objective of this work is to find out the culture of software organizations in Pakistan using Hofstede model and effect of culture on software processes. The result indicates the nature of culture in software organizations of Pakistan and describes software processes are influenced by higher power distance and uncertainty avoidance.
The aim of our study was the biofortification of broccoli sprouts with selenium nanoparticles and evaluation of growth parameters, assimilator pigments content, total phenols content and antioxidant capacity, in order to boost value added output, such as improved nutrition and food functionality. Selenium nanoparticles were prepared by reduction of NaHSeO3 using glucose as reducing agent, followed by morphological characterisation.The growth of broccoli seedlings was dependent on nano selenium concentration. The treatment with 10 and 50 ppm nano selenium caused a slight increase in total biomass, by contrast with 100 ppm treatment. Clorophyll content and total carotenoids was not affected by the treatment. The highest antioxidant capacity was obtained for 100 ppm selenium concentration.The effective uptake of nanoparticles was further demonstrated by FTIR spectroscopy and Hyperspectral Microscopy. Selenium nanoparticles didn’t induce any toxicity on broccoli sprouts. Moreover, broccoli biofortification with selenium nanoparticles may target higher nutritional impact and health benefits.
The article analyses the influence of educational virtual reality programs on knowledge, cognitive processes and motivation. The work in virtual reality encourages specific cognitive motivation and educational interest. The authors accounts for the necessity to use the virtual reality for educational purposes, professional training, development of the motivation.
The present study aims to investigate the role of sulphur water in skin cure.\nThe sulphure water samples were collected from a bath of Mosa, South Sinai, Egypt. The physicochemical parameters of the collected water samples were studied. Also, fifty female of albino rats (Ratus norvegicus) were subjected to the sulphur water for four weeks. The exposed skin of the studied rats was subjected to electron microscopic studies.\nThe results revealed the very important role of sulphur water of hot springs in skin cure as it affects stratum corneum of the epidermis causing strengthening and untwisting to the abdominal skin of albino rats.\nFrom the present study, it is recommended to use the sulphur water in skin cure and treatment of some skin diseases as abdominal softening.
Of late Multitenant model with In-Memory database has become prominent area for research. The paper has used advantages of multitenancy to reduce the cost for hardware, labor and make availability of storage by sharing database memory and file execution. The purpose of this paper is to give overview of proposed Supple architecture for implementing in-memory database backend and multitenancy, applicable in public and private cloud settings. Backend in-memory database uses column-oriented approach with dictionary based compression technique. We used dedicated sample benchmark for the workload processing and also adopt the SLA penalty model. In particular, we present two approximation algorithms, Multi-tenant placement (MTP) and Best-fit Greedy to show the quality of tenant placement. The experimental results show that Multi-tenant placement (MTP) algorithm is scalable and efficient in comparison with Best-fit Greedy Algorithm over proposed architecture.
Personality characteristics play a crucial role in the process of learning a foreign language (FL). The aim of the present paper is to specify the extent of the availability of personality characteristics, namely inhibition, self-esteem, willingness to communicate, risk-taking, anxiety, extroversion, and ambiguity tolerance, in first and second year English as a foreign language (EFL) university students. The study hypothesizes that EFL learners at university level have varied degrees of personality characteristics. To verify the preceding hypothesis, 78 university students have been selected as the sample for the study. A questionnaire has been constructed and administered as the research tool. The data collected via the questionnaire have been analyzed using the SPSS program. The results show that the participants are unwilling to communicate, have low-inhibition, high self-esteem, risk-taking, extroversion, and tolerance for ambiguity to varied degrees, yet are highly anxious. In the light of the findings, some classroom practical recommendations are put forward.
Objectives: Premature ovarian failure is characterized by the loss of oocytes, low yield of folliculogenesis, ovarian estrogen production and infertility. Stem cells are unspecialized cells has the capacity to regenerate and differentiate into specialized cell types. Mesenchymal stem cells represent a promising tool in supporting regenerative medicine. Bone marrow was reported to contain MSCs. Methods: Isolated MSCs from BM of 20 male mice were proliferated in vitro. Eighty mature mice were divided into four groups 20 mice each; Group (1): normal control, Group (2): ovarian failure induced with CTX, Group (3): ovarian failure received saline injection in caudal vein and Group (4): ovarian failure received MSCs in caudal vein. Results: FSH and E2 levels showed no changes compared to normal control group while in ovarian failure induced untreated and ovarian failure induced received saline showed increase of FSH and E2 levels by the 6th week. Ovarian failure induced group received MSCs showed gradually decrease in FSH and E2 levels and by the end of 6th week showed a level nearly to the normal levels . These hormonal findings confirmed by histopathological and PCR examination of sry gene expression which represents an evidence of stem cell incorporation into the ovarian structure. The present study showed that MSC implantation can improve ovarian function in mice with ovarian damage induced by CTX injection, which results in abnormal estrous cycles. Six weeks after transplantation as indicated by increased estradiol levels and decreased FSH levels.. Conclusion: MSCs may serve as a promising improvement approach in cases of premature ovarian failure.
The aim of this study was to evaluate the relationship between textural characteristics (hardness, springiness, cohesiveness, chewiness, gumminess and adhesiveness) and demineralization induced by solid foods. Test samples were selected from 24 solid foods and they were classified into 12 categories. The textural properties of 24 samples were measured by texture profile analysis (hardness, springiness, cohesiveness, chewiness, gumminess and adhesiveness). The degree of demineralization was evaluated by the total viable cell count after inoculation of Streptococcus mutans and the change in microhardness of bovine enamel. The Spearman correlation coefficients (rs) for caries-associated variables, hardness, chewiness, and gumminess, were significant at p < 0.05. Caramel and candy had the highest tendency for total viable cells after inoculation of S. mutans and difference (?Z) in demineralization (p < 0.05). Sticky solid foods had more chances of causing dental caries due to longer residual time between teeth as the hardness, chewiness, and gumminess values were increased.
Software testing and maintenance is costly and time consuming operation of the software development life cycle (SDLC). The fault has not found in the development phase will increase the chance of failure rate for maintenance phase. Software testing has performed to increase the quality of the software and also increase the customer satisfaction. Due to time constraint and costly testing operation many organization has working on testing optimization. However, today scenario most of the work is dependent upon software and need of quality software in minimum time. Therefore organization is highly interested in performing the testing work in early to achieve the full testing goals with reduce cost and time. For this purpose the phase wise approach has proposed using fuzzy inference system to find the fault in every phase. Since the failure data or test data are not available in requirement, design and code phase. Therefore high reliability based software metrics (quality attributes) for fault identification has selected from the phases of SDLC. In the proposed approach four different fuzzy inference systems has designed for every phase. The given result from the proposed approach has validated with twenty real software data sets from NASA. The validation results are acceptable. The predicted fault results are near to actual NASA data sets fault. The result from proposed approach is useful for software developer, designer and testing team to plan and decision for their respective phases in early development.
Toothpastes and mouthwashes, commercially known as bleaching agents, promise to achieve tooth bleaching by using abrasive substances or agents that release oxygen in a chemical reaction, providing the bleaching desired by the patient. This paper reports three clinical cases, in which different toothpaste and mouthwash kits were used for tooth bleaching : Patient I: Oral B 3D White® (Procter & Gamble, São Paulo, SP, Brazil); Patient II: Colgate Luminous White®; Patient III: Closeup Diamond Attraction®. These products were used for 30 days, and evaluation was performed by using color scales: CHROMASCOP, VITAPAN 3D- and VITAPAN Classical. 30 days after of using the products, none of the patients reported irritation in oral tissues and then new pictures were taken to compare them with those color scales employed, and it was observed no clinically visible color change. After analyzing and comparing the images obtained before and after the use of toothpastes and mouthwashes it can be observed that the products did not promote teeth bleaching.
