163 research outputs found

    The Role of Job Embeddedness and Organizational Continuance Commitment on Intention to Stay: Development of Research Framework and Hypotheses

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    The purpose of this paper is to develop a research framework and hypotheses based on a thorough review of the conceptual and empirical research in organizational behavior literature. Previous research has shown that there is an important relationship between on-the-job, off-the-job embeddedness, organizational continuance commitment, and employee’s intention to stay. Organizational continuance commitment is hypothesized to have a mediating effect on the relationship between on-the-job, off-the-job, and intention to stay. Implications for testing these hypotheses are articulated from research and practice perspectives. Research framework from this paper will be used at the preliminary stage of the research on ICT industry that can be expected to contribute to the development of ICT workers in Malaysia

    Deep Learning Technique for Detecting and Analysing Ischemic Stroke Using MRI Images

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    The quantitative analysis of cerebral MRI images plays a pivotal role in stroke diagnosis and treatment. Deep learning, particularly CNNs, with their robust learning capabilities, offer an effective tool for lesion detection. To address the unique properties of stroke injuries and automate detection processes, we compiled a dataset of brain MRI images from various medical sources, representing patients affected by ischemic strokes. Different deep learning-based networks, including “Single Shot Multibox Detector (SSD)”, “Region-based CNN with ResNet101 (RCNN-ResNet101)”, “RCNN with VGG16 (RCNN- VGG16)”, and “YOLOV3”, were employed for automated lesion detection. The evaluation focused on achieving optimal precision in comparison to existing methods across Diffused Weight, Flair, and T1 modalities of MRI datasets. The developed technique involves extracting deep features during the encoding stage, followed by the minimization of features using fully connected layers. Significant handcrafted features, such as Local Binary Pattern (LBP) and Gray Level Co-occurrence Matrix (GLCM), were incorporated alongside deep features. The concatenation of these features was implemented to maximize the dimension of the feature vector. This concatenated vector was then used to train and test the performance of various classifiers. Binary classification was employed to categorize brain images into normal or stroke affected. Initially, SoftMax was used as the default classifier. The performance of each classifier was individually evaluated, and the best-performing classifier was selected to confirm the overall effectiveness of the proposed technique. This all-encompassing strategy not only leverages deep learning for automatic lesion detection but also integrates handcrafted features and diverse classifiers to improve the precision and dependability of stroke detection across various brain MRI image modalities

    Consequences of job embeddedness and the mediating role of continuance commitment on intention to stay in Malaysian Information and Communication Technology Industry

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    Investigating employee’s intention to stay is particularly important within the Malaysian Information and Communication Technology sector, which is characterized by high turnover and the impact of the global shortage of skilled employee’s. The managers need to recognize the value of their employee’s by encouraging them to remain for their resource talent to be used, and also discourage them from looking elsewhere for better opportunities. Grounded in Job Embeddedness and Social Exchange theory, the purpose of this study was to investigate the relationship between job embeddedness (on-the-job and off-the-job) and intention to stay with the mediating relationship of continuance commitment. Additionally, these relationships further enhance and evaluate the extent to which job embeddedness (on-the-job and off-the-job) influences employee’s intention to stay. A survey was conducted with total of 177 personally administrative structured questionnaires were obtained with the response rate of 70.8%. SPSS 20.0 & SmartPLS 3 for structural equation modeling was utilized in confirming the hypotheses developed for the study. The results of the structural equation modeling analysis indicated the model was substantial. The findings of the study also revealed that there was a significant positive relation between fit and links dimension of on-the-job; off-the job embeddedness and intention to stay. At the same time, continuance commitment partially mediates these relationships. Moreover, continuance commitment plays full mediation between sacrifice organization and intention to stay. The results not only supported previous outcomes that people who were more embedded in their jobs had more intent to stay, but also expanded the significance of off-the-job and non- affective reasons of staying job. This research adds to the body of knowledge concerning what contributes to why people stay their jobs. Reduced employee turnover can financially benefit to Malaysian Information and Communication Technology Industry organization and that in turn can have a positive social benefit on the community

    Antioxidant and anti-proliferative activity of different solvent extracts of Casuarina equisetifolia needles

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    The context and purpose of the study: Plants that have been used for traditional medicines are very good sources of phyotochemicals. There are many plants like Casuarina equisetifolia, which are still unexplored for their medicinal properties. In the present study, we have elucidated the in vitro antioxidant and antiproliferative activity of different solvent extracts (both polar and non polar) of C. equisetifolia needles.Main findings: In vitro antioxidant activity of different solvent extracts of C. equisetifolia needles was studied by analyzing the total polyphenols, flavonoids, total antioxidant capacity and free radical scavenging activity. The polar solvent extracts showed significantly high amount total polyphenols, flavonoids, antioxidants and free radical scavenging activity compared to the non polar solvent extracts. The cytotoxic and apoptosis inducing activity of the different solvent extracts were analyzed on MCF-7 cells by MTT assay, acridine orange/ethidium bromide staining, DAPI staining and caspase-3 release. The polar solvent extracts did not show any growth inhibition in MCF-7 cancer cells. But the non polar solvent extracts are very good in inducing cell death by inducing apoptosis which involves DNA fragmentation and release of caspase 3. Using silica gel fractionation and RP-HPLC analysis the active component present in non-polar solvent extracts was identified as ascorbic acid.Brief summary and potential implications: Our results indicated that the needles of C. equisetifolia are rich sources of antioxidants and also contain potential anticancer agents. Detailed study on the mechanism of action of purified compound on inhibition of cancer cell growth may provide some potential anticancer molecule from natural source

    Antioxidant and anti-proliferative activity of different solvent extracts of Casuarina equisetifolia needles

    Get PDF
    The context and purpose of the study: Plants that have been used for traditional medicines are very good sources of phyotochemicals. There are many plants like Casuarina equisetifolia, which are still unexplored for their medicinal properties. In the present study, we have elucidated the in vitro antioxidant and antiproliferative activity of different solvent extracts (both polar and non polar) of C. equisetifolia needles.Main findings: In vitro antioxidant activity of different solvent extracts of C. equisetifolia needles was studied by analyzing the total polyphenols, flavonoids, total antioxidant capacity and free radical scavenging activity. The polar solvent extracts showed significantly high amount total polyphenols, flavonoids, antioxidants and free radical scavenging activity compared to the non polar solvent extracts. The cytotoxic and apoptosis inducing activity of the different solvent extracts were analyzed on MCF-7 cells by MTT assay, acridine orange/ethidium bromide staining, DAPI staining and caspase-3 release. The polar solvent extracts did not show any growth inhibition in MCF-7 cancer cells. But the non polar solvent extracts are very good in inducing cell death by inducing apoptosis which involves DNA fragmentation and release of caspase 3. Using silica gel fractionation and RP-HPLC analysis the active component present in non-polar solvent extracts was identified as ascorbic acid.Brief summary and potential implications: Our results indicated that the needles of C. equisetifolia are rich sources of antioxidants and also contain potential anticancer agents. Detailed study on the mechanism of action of purified compound on inhibition of cancer cell growth may provide some potential anticancer molecule from natural source

    Awareness of Dental Floss among Dental Students of First Year

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    Objective: To assess awareness of dental floss use among first year students of dental college.Study design and duration: This is a cross sectional study completed in duration of 4 months from January 2019 to May 2019.Setting: Study was conducted at CMH Lahore medical college and institute of dentistry.Patients and methods: There were total 130 students included in this study. Their age range was 18-26 years. A questioner was designed containing questions in English language like what is dental floss, what is its use and how it is beneficial etc. Each student was given one questioner to fill. Each question was having 2 or 3 options like “yes”, “No” or “don’t know”. Data collected was analyzed using Microsoft office and SPSS softwares and frequencies, percentages and P-value were calculated. Results were presented in tabular form. Proper permission was taken from ethical committee of the study institution before conducting study. Results: There were total 130 students including 60() male and 70() female students in this study. Their age was ranging from 18-26 years with mean age of 22.5 years. Out of 130 students, 107() students replied yeas and 23 replied no in answer to the question “ do you know what is dental floss?” In the reply of question “Does dental floss removes plaque in interdental areas?” 98() replied ‘yes’ and 32() ‘No.’ There were 98() students who were using dental floss and 32() were not using it. Overall 45() students were having poor, 60() having moderate, 12() high and 23 were having no knowledge about dental floss at all.   Conclusion: Proper awareness about dental floss use and its benefits is very necessary among dental students as they have to give awareness to others in the community

    Carbohydrate fraction of Aloe vera ameliorates inflammation through suppression of pro-inflammatory mediators and oxidative stress in vitro and rats with Freund’s adjuvant induced paw edema

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    Aloe vera (L.) Burm. F (Asphodelaceae) is a traditional medicinal plant having multiple biological activities such as wound healing, anticancer and antidiabetic activity, etc. These properties have been attributed to the constituents present in Aloe vera. One of the major constituents is carbohydrate, which has not been explored much for its antioxidant and anti-inflammatory activity. Here, we evaluated the antioxidant and anti-inflammatory potential of carbohydrate fraction (CF) of Aloe vera extract using in vitro and in vivo model for its therapeutic application in the treatment of inflammation. CF extract was prepared using hot water extraction followed by ethanolic precipitation. The CF extract was tested for free radical scavenging assays, lipopolysaccharide-stimulated RAW264.7 cells in vitro and in vivo by Freund’s adjuvant induced rat paw edema model. The free radical scavenging activity of CF extract significantly increased in a concentration-dependent manner with maximum inhibition observed at the concentration of 2 mg/mL. CF extract (20 and 60 ”g/mL) showed their maximum cell viability in RAW264.7 cells by MTT assay. CF extract shows a considerable decrease of inflammatory mediators in both in vitro and as well as in vivo studies. The increase of superoxide dismutase and catalase levels in CF treated adjuvant induced rats decreases ROS/RNS levels and inflammatory mediators. It may be primarily activated by NF-ÎșB and AP-1 indicating its potent antioxidant activity that promotes modulation in cellular redox state. The results suggest that carbohydrate fraction of Aloe vera could be useful for the management of oxidative stress and inflammatory diseases

    Emerging Economies' Influence in Shaping Global Governance Structures and Issues

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    The global economy is transforming from a bipolar structure in which developed nations mainly control the global governance system to a multipolar structure mainly due to fast industrialization and economic growth of emerging economies. These countries, including China, India and Brazil, as they grow economically and politically, are pushing for the reform of international organizations to become more democratic. The emergence of new economic and political actors, for instance BRICS and G20 is an indication of the fact that these countries are working together to redesign new international relations architectures because traditional systems failed to address emerging challenges. This paper aims at analyzing the process of evolution of the emerging economies in the context of their participation in the global governance with a focus on their effects on economic, political and security dimensions. Using China, India and Brazil as the case, the paper shows that these countries are not only demanding changes in existing institutions but are also shaping new governance structures. Finally, the paper looks into the possible future environments for global governance with an emphasis on the necessity to develop a new, fairer model that would correspond to the trends of a multipolar world. Keywords:  Emerging Economies, Global Governance, Political Clout, Multipolar World, Institution

    Evaluation of endometrial thickness with transvaginal ultrasonography in perimenopausal women presenting with abnormal uterine bleeding and correlation with its histopathological findings

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    Background: Abnormal uterine bleeding is the most common presenting menstrual complaint in women of perimenopausal age group. Most frequently used diagnostics tests to investigate the causes of abnormal bleeding are Transvaginal ultrasonography (TVS) and endometrial biopsy. Uterine curettage is an invasive procedure and is performed with anaesthesia. TVS is a non-invasive method that has been used to evaluate the endometrium and uterine cavity. The objectives of this study were to measure and evaluate the role and accuracy of endometrial thickness by transvaginal ultrasonography study to detect endometrial pathology in perimenopausal women presenting with Abnormal Uterine Bleeding. To correlate the transvaginal sonographic results with the Histopathological findings to discriminate normal from pathological endometrium.Methods: Prospective study including 150 perimenopausal women with abnormal uterine bleeding. Endometrial thickness was measured by TVS and then D and C was performed for all the patients.Results: Out of 150 women, 128 (85.3%) had normal and 22 (15%) had an abnormal endometrium. 43.3% were of 41-45 years and 65.3% patients presented with complaint of heavy menstrual bleeding. Majority of the patients in the study group were para 2 or more. Fibroid uterus (24%) was the commonest uterine pathology detected on TVS. 53.3% of patients had endometrial thickness in the range 10-14.9 mm. Most common finding on HPE was secretory endometrium (44.6%). Endometrial carcinoma was found in 3%. Endometrial thickness <14mm was associated with least abnormal endometrial pathology.Conclusions: Endometrial thickness of less than 14 mm need not be indicated for D and C in perimenopausal abnormal uterine bleeding. In perimenopausal women with AUB, TVS should be the investigation of choice due to its convenience, accuracy and non- invasiveness
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