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      • 이동경로에 기반한 이상감지를 통한 도난 방지 연구

        무하마드아미르Saleem ( Muhammad Aamir Saleem ),무하마드우스만Saleem ( Muhammad Usman Saleem ),KifayatUllah칸 ( Kifayat Ullah Khan ),( S. Y. Lee ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.2

        The growth in number and capacity of smart devices such as GPS enabled smart phones and PDAs present an unparalleled opportunity for diverse areas of life. In this paper we propose an approach for vehicle theft protection using GPS based trajectory anomaly detection. The detailed methodology of the proposed system is briefly described in this paper.

      • KCI등재

        Information Risk and Cost of Equity: The Role of Stock Price Crash Risk

        Sana SALEEM,Muhammad USMAN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1

        The purpose of this research is to examine the impact of information risk on the Cost of Equity (COE) and whether the risk of a stock price crash mediates the relation between information risk and COE. To test the dynamic nature of the proposed model, the two-step system GMM dynamic panel estimators are applied to all the non-financial firms listed on the Pakistan Stock Exchange (PSX) from 2007- 2018. The results of this study show that all three types of information risk, as well as the risk of the share price crash, increases the COE. The crash risk strengthens the impact of information risk on the COE. Moreover, these three information risks are correlated with each other and an increase in information quality reduces the effect of asymmetric information and improves the investor interpreting ability, while an increase in private information decreases the transparency. The finding is crucial for asset pricing, portfolio management, and information disclosure. This study contributes to the literature by providing novel findings on the impact of three different types of information risk, i.e. private information, quality of information, and transparency of information on the COE as well as whether crash risk mediates the relationship.

      • Clinicopathologic Profile of Breast Cancer Patients in Pakistan: Ten Years Data of a Local Cancer Hospital

        Khokher, Samina,Qureshi, Muhammad Usman,Riaz, Masooma,Akhtar, Naseem,Saleem, Afaf Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.2

        Breast cancer is the most frequent cancer of women worldwide, with considerable geographic and racial/ethnic variation. Data are generally derived from population based cancer registries in the developed countries but hospital data are the most reliable source in the developing countries. Ten years data from 1st Jan 2000 to 31st Dec 2009 of a cancer hospital in Pakistan were here analyzed by descriptive statistics to evaluate the clinicopathologic profile of local breast cancer patients. Among 28,740 cancer patients, 6,718 were registered as breast cancer. The female to male ratio was 100:2. Breast cancer accounted for 23% of all and 41% of female cancers. Some 46% were residents of Lahore, with a mean age of $47{\pm}12$ years. Less than 1% were at Stage 0 and 10%, 32%, 35% and 23% were at Stage I, II, III and IV respectively. Histopathology was unknown in 4% while 91%, 2% and 1% had invasive ductal carcinoma (IDC), invasive lobular carcinoma (ILC) and mucinous carcinoma respectively. Rare carcinomas accounted for the rest. Tumor grade 1, 2 and 3 was 11%, 55% and 34% among the known. Profile of breast cancer patients in Pakistan follows a pattern similar to that of other developing countries with earlier peak age and advanced disease stage at presentation. The male breast cancer accounts for higher proportion in the local population. Local women have higher frequency of IDC and lower frequency of ILC and DCIS, owing probably to a different risk profile. Use of hospital information systems and establishment of population based cancer registry is required to have accurate and detailed local data. Promotion of breast health awareness and better health care system is required to decrease the burden of advanced disease.

      • Impact of a Breast Health Awareness Activity on the Knowledge Level of the Participants and its Association with Socio-Demographic Features

        Khokher, Samina,Qureshi, Muhammad Usman,Fatima, Warda,Mahmood, Saqib,Saleem, Afaf Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.14

        The developing countries have higher mortality rates for breast cancer. A reason for this is presentation at advanced stages due to low levels of public awareness. Activities are arranged by health authorities of developing countries to increase the knowledge of women but their effectiveness has not been evaluated in detail. A multiple choice questionnaire with questions about socio-demographic profile and questions about breast cancer knowledge was designed in local language Urdu, to evaluate the knowledge of the participants before and after an audio visual educational activity in Lahore, Pakistan. Scores of 0-2, 3-5 and 6-8 were ranked as poor, fair and good, respectively. Among 146 participants these scores were achieved by 1%, 55% and 45% before activity and 0%, 16% and 84% after the activity. Overall 66% of participants increased their knowledge score. Younger age, higher education, reliance on television as source of information and being a housewife were associated with better impact of the awareness activity. For the six knowledge related questions 3%, 5%, 11%, 23%, 33% and 44% more participants gave correct answers after the activity. However 6% and 7% fewer participants answered correctly for 2 questions related to the cause and the best prevention for breast cancer. The study indicated that awareness activities are effective to increase the knowledge of women and better impact is associated with higher education and younger age of women. The component analysis showed that the questions and related presentations using medical terms have a negative impact and should not therefore be used. Analysis of activity therefore leads to identification of deficiencies which can be remedied in future.

      • A Multicenter Matched Case Control Study of Breast Cancer Risk Factors among Women in Karachi, Pakistan

        Shamsi, Uzma,Khan, Shaista,Usman, Sheheryar,Soomro, Saleem,Azam, Iqbal Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1

        Background: Breast cancer (BC), the most common female cancer in Pakistan, is associated with a very high mortality. However, the roles of individual risk factors for BC among Pakistani women are still controversial. To assess potential risk factors for BC, a matched case-control study was conducted in two tertiary care hospitals of Karachi, Pakistan. Materials and Methods: The study population included 297 pathologically confirmed incident cases of BC patients diagnosed between January 2009 and December 2010. 586 controls without any history of BC were matched on hospital and ${\pm}5$ years of ages. Results: Positive family history of BC (MOR=1.72; 95%CI: 1.10, 2.80 for first degree vs. none), single marital status (MOR=1.55; 95%CI: 1.10, 2.39 for single/divorced/widowed women vs. married women), older age at menopause (MOR=3.92; 95%CI: 2.52, 6.18 for menopausal women aged below 45 years, MOR=6.42; 95%CI: 3.47, 11.98 for menopausal women above 45 years of age compared with premenopausal women) conferred an increased risk of BC for women. Increasing parity decreased the risk of BC (MOR=0.90; 95%CI: 0.85, 0.97 for each live birth). Intake of Vitamin D supplements (MOR=0.30; 95%CI: 0.12, 0.81 for ${\leq}3$ years and MOR=0.27; 95%CI: 0.13, 0.56 for >3 years) was protective compared to non-users of Vitamin D. Conclusions: This study confirmed only few of the recognized risk factors in Pakistani women. The protective effect of Vitamin D is important from public health perspective and needs to be further explored through a randomized controlled trial.

      • KCI등재

        There's No Such Thing as Free Lunch but Envy among Young Facebookers

        ( Tassawar Iqbal ),( Muhammad Tariq Yousafzai ),( Sabeen Ali ),( Kinza Sattar ),( Muhammad Qaiser Saleem ),( Usman Habib ),( Atta Ur Rehman Khan ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.10

        Facebook has quickly infused across cultures worldwide to become a common household term for diverse spectra of netizens, especially youngsters. Inherently, interactive in nature, Facebook provides a common cyber enabled platform for online interactions with social friends, living across the world. However, despite its merits, users also experience certain disadvantages, which include but are not limited to rise in feelings of social comparison, decline in self-esteem, contentment and general subjective well-being. This work aims to determine the role of Facebook in spreading envy and identify factors that trigger such emotions. Due to abductive nature of the study, we used pilot interviews and consulted relevant literature to formulate hypotheses. Further, we used deductive approach and conducted a survey. The results showed that frequent use of Facebook, particularly passive following is main predictor of envy, and social interaction is the biggest cause for development of envious feelings in Facebook users. However, insignificant variation was found while investigating relationship between envy and factors, such as pretentiousness, time spent, accomplishment, everything in life, likes on posts, popularity across genders, marital status and genre.

      • BIG DATA Challenges, Tools and Techniques

        Rimsha Khalid,Khowla Khaliq,Muhammad Waseem Iqbal,Muhammad Saleem Butt,Muhammad Usman Bilal 한국차세대컴퓨팅학회 2022 한국차세대컴퓨팅학회 학술대회 Vol.2022 No.10

        Data is growing day by day all over the world. The word ''Big-data'' refers to a collection of data sets that are huge and complicated. The data is usually measured in Petabyte or Exabyte. Big data is one of the most talked-about topics in the field of IT. Its role in the future will be very considerable. The massive use of the internet, smartphones and social media has resulted in an increase in data. The usage of such gadgets and the internet not only increases the volume of data but also increases market velocity by allowing into to be moved and shared at light speed across optical fiber and wireless networks. Numerous problems arise as a result of the rapid creation of a large amount of data. So, we presented important concepts of Big-data in this paper. The basic purpose of this paper was to explore Big-data, challenges, and different tools related to it. We studied the previous work in which all writers have well-described big data, its challenges, and how to deal with them. And we have achieved our goal by providing a platform that explored big data challenges and tools for big data storage in detail. Moreover, we have compared these tools by identifying their parameters. In the future, we will find out solutions for these challenges. Furthermore, this paper will open new doors for researchers to explore Big-data, and develop solutions for challenges and unsolved research questions.

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