485 research outputs found

    Static Analysis Based Behavioral API for Malware Detection using Markov Chain

    Get PDF
    Researchers employ behavior based malware detection models that depend on API tracking and analyzing features to identify suspected PE applications. Those malware behavior models become more efficient than the signature based malware detection systems for detecting unknown malwares. This is because a simple polymorphic or metamorphic malware can defeat signature based detection systems easily. The growing number of computer malwares and the detection of malware have been the concern for security researchers for a large period of time. The use of logic formulae to model the malware behaviors is one of the most encouraging recent developments in malware research, which provides alternatives to classic virus detection methods. To address the limitation of traditional AVs, we proposed a virus detection system based on extracting Application Program Interface (API) calls from virus behaviors. The proposed research uses static analysis of behavior-based detection mechanism without executing of software to detect viruses at user mod by using Markov Chain. Keywords: Malware Detection; Markov Chain; Virus Behavior; API Call

    Griffiths phase in diluted magnetic semiconductors

    Full text link
    We study the effects of disorder in the vicinity of the ferromagnetic transition in a diluted magnetic semiconductor in the strongly localized regime. We derive an effective polaron Hamiltonian, which leads to the Griffiths phase above the ferromagnetic transition point. The Griffiths-McCoy effects yield non-perturbative contributions to the dynamic susceptibility. We explicitly derive the long-time susceptibility, which has a pseudo-scaling form, with the dynamic critical exponent being expressed through the percolation indices.Comment: 4 pages, final version as publishe

    ANALISIS KOMPARATIF KINERJA REKSA DANA SAHAM SYARIAH DAN REKSA DANA SAHAM KONVENSIONAL PADA BURSA EFEK INDONESIA PERIODE TAHUN 2016-2019

    Get PDF
    Penelitian ini bertujuan untuk mengetahui perbedaan kinerja Reksa Dana saham syariah dan Reksa Dana saham konvensional. Metode pemilihan sampel yang digunakan adalah Purposive Sampling sehingga terpilih 10 sampel Reksa Dana saham syariah dan 10 sampel Reksa Dana saham konvensional. Untuk mengukur kinerja Reksa Dana saham peneliti menggunakan tiga metode pengukuran yaitu metode Sharpe, Treynor dan Jensen. Hasil penelitian ini menunjukkan bahwa kinerja Reksa Dana saham konvensional lebih tinggi daripada kinerja Reksa Dana saham syariah dengan menggunakan metode Sharpe dan Treynor, dan pada metode Jensen kinerja Reksa Dana saham syariah lebih tinggi daripada  kinerja Reksa Dana saham konvensional. Hasil penelitian ini menunjukkan bahwa uji beda dengan menggunakan uji statistik Independent Sample T-test  pada program IBM SPSS Statistics 24, nilai signifikansi adalah lebih kecil dari 0,05 yang artinya terdapat perbedaan yang signifikan antara kinerja Reksa Dana saham syariah dan kinerja Reksa Dana saham konvensional dengan menggunakan metode Sharpe dan Treynor. Dan diketahui nilai signifikansi untuk metode Jensen adalah lebih besar dari 0,05 yang artinya tidak terdapat perbedaan yang signifikan antara kinerja Reksa Dana saham syariah dan kinerja Reksa Dana saham konvensional dengan menggunakan metode Jensen. Kata kunci: tingkat pengembalian, risiko, perbandingan kinerja Reksa Dana saham, indeks saham syariah, indeks saham konvensional

    Pengaruh Perubahan Penggunaan Lahan terhadap Angka Kesakitan Malaria : Studi di Provinsi Lampung

    Full text link
    Ecological disruption as a result of changes in the area of forest cover to other land uses can affect the microclimate and impact toward malaria morbidity. Malaria is an infectious disease caused by protozoa a genus of Plasmodium that transmitted by female Anopheles sp. mosquito vectors. The environmental factors that play a role in the risk to transmission of malaria related to vector breeding places. The purpose of this research is establish the impact of land use changes toward malaria morbidity. This study was conducted from March to September 2015. Dynamics of land use changes in regency/city be identified through interpretation of landsat imagery in 2002, 2009, and 2014 with supervised classification and resulted in percentage of land use, the influence of impact toward malaria morbidity processed using multiple linear regression models. Parameter optimization using statistic software. The result showed that the impact of positive variable that significant toward malaria morbidity are mangrove forest and total population, while impact of negative variable that significant are extensive swamp and health personnel. Variable which not impact that significant toward malaria morbidity are forests, community forests, undeveloped land, dry land, other land uses, population density, precipitation, unhealthyhousing, urban, and physiographic

    Dampak Pemberian Tablet Zat Besi (Fe) pada Ibu Hamil terhadap Kejadian Bayi dengan Berat Badan Lahir Rendah (Analisis Lanjut Sdki 1994)

    Full text link
    The prevalence of low birth weight (LBW) in Indonesia varied between 2.1 - 17.2%. At the end of Five years Development Plan V (Repelita V) it was 15.0%, and is expected to decrease to 10.0% by the end of Repelita VI. Low Birth Weight infant (less than 2500 grm) is an important issue, because of its relationship with the survival and health status of the infant in the future. The prevalence of anemia in pregnant women is 63.5%. The cause of anemia is mostly iron deficiency. The need of iron in pregnant women is quite high which is an average of 800 mg during pregnancy. Daily food contains 10 - 20 mg iron but the human body can absorb only less than 10.0%. To overcome the problem, iron pills distribution program is implemented. The iron pills contain 200 mg ferro sulfate and 0.25 mg folic acid, and are given to all pregnant women who visit Community Health Centres (Puskesmas) and Integrated Health Service Posts (Posyandu). Each pregnant women is expected to have at least 90 iron pills during the pregnancy. The objective of further analysis of the Demographic and Health Survey 1994 is to obtain information on the impact of iron pills on low birth weight. Among the 1689 weighted children born in 1994, there were 6.7% (112 children) with low birth weight. The percentage of low birth weight (10.6%) in the mothers who did not take the iron pills is the highest, followed by mothers who took less than 90 pills (6.0%) and the lowest percentage of low birth weight is found among mothers who took the least iron pills (5.9%), and statistically the difference is significant at p=0.0271. Among mothers who weighted their new born children, 14.6% did not take iron pills during pregnancy, only 26.1% mothers who took at least 90 iron pills during pregnancy. There is variation among the number of iron pills taken. Iron pill is useful for pregnant women. Based on the pills consumed by the pregnant women, the risk for having low birth weight infant for mother who did not take pills compared with those who take at least 90 pills is 3.5 times (95% CI: 1.41 - 9.09) in Java Bali, 10.3 times (95% CI: 1.11-14.29) for mothers with education Junior High School and 2.7 times (95% CI: 1.11 - 6.66) for mothers who give birth for the first child.Based on the number of pills taken by pregnant women, risk for Low Birth Weight in urban and rural area is not different, in Java Bali and as outer Java Bali. To reduce the Low Birth Weght, it is important to intensify monitoring, educating, informating on the importance of iron pills with balanced nutrition through health attendant and community key person and involvement of private company through mass media. It is important to have examination of women before she get pregnant and give proper treatment to the diseases which can worsen the anemia during pregnancy. It is also important to do special research on the high risk of anemia by considerating factors which determine low birth weight in the effort of promoting the health of pregnant women and the infants, so that specific and or appropriate methods of intervention can be developed and applied

    Evaluating Roads Network Connectivity for Two Municipalities in Baghdad-Iraq

    Get PDF
    The road network serves as a hub for opportunities in production and consumption, resource extraction, and social cohabitation. In turn, this promotes a higher standard of living and the expansion of cities. This research explores the road network's spatial connectedness and its effects on travel and urban form in the Al-Kadhimiya and Al-Adhamiya municipalities. Satellite images and paper maps have been employed to extract information on the existing road network, including their kinds, conditions, density, and lengths. The spatial structure of the road network was then generated using the ArcGIS software environment. The road pattern connectivity was evaluated using graph theory indices. The study demands the abstraction and examination of the topological structure by choosing a few factors associated with the connection of the roads. These involved the cyclomatic number, Eta coefficient, Aggregate Transform Score (ATS), Beta, gamma, and Alpha indices. According to the findings, the Al-Adhamiya roads network is more developed, better linked, and has a higher overall connectivity value than the Al-Kadhimiya network. The two study areas, however, have minimal circuitry and high complexity. Due to the modifications and expansion of land use that the municipalities have seen, the research suggests that the transportation network should be developed to reach greater interconnectedness, particularly in locations outside the city center
    • …
    corecore