Poster Session : PS 0451 ; Infectious Disease ; Antibiotic Stewardship Program and Strict Infection Control Implementation to Decrease the Prevalence of Antimicrobial Resistance Organism in Surabaya

( Usman Hadi ),( Bramantono Soekarman ),( Musofa Rusli ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Antimicrobial resistant microorganism is a global problem that threat human live. Prevalence of ESBL`s producing bacteria in Indonesia is quite high. To overcome this problem antibiotic stewardship and better infection control must be implemented in all health facilities. Methods: Evaluation of pre and post intervention in the department of Internal Medicine and department of Surgery Dr. Soetomo Hospital in the year 2012 and 2013. The multifaceted intervention consisted of small group discussion, updating antibiotics guideline, training of the residents and paramedical staffs regarding prudent use of antibiotic and instruction of strict infection control procedure. The prevalence of ESBL`s producing bacteria`s was collected from the Department of Microbiology Hospital. Results: A decline in the prevalence of E.coli ESBL (+) by 11% and K.pneumoniae ESBL (+) by 24% after implementation of this program. These results are in accordance with the target of our program to reduce ESBL by 10%. Conclusions: Implementation of antibiotic stewardship program and implementation of strict infection control is very important to manage patients and able to decrease the prevalence of ESBL producing bacteria.

Mitigation of Nonlinearities in Analog Radio over Fiber Links using Machine Learning Approach

Muhammad Usman Hadi 한국통신학회 2021 ICT Express Vol.7 No.2

Machine learning (ML) techniques are looked upon as an innovative and realistic direction to cope up with nonlinearity issues in fiber optics communication. In this paper, a 64-quadrature amplitude modulation (QAM) based radio over fiber (RoF) system is demonstrated for 10 km of standard single mode fiber length utilizing support vector machine (SVM) method to indicate an effective nonlinearity mitigation in front-hauls. The comparison of SVM is drawn with conventional ML classifiers to optimize symbol decision boundary that will reduce the RoF link impairments. The results are reported in terms of BER, Eye-linearity and Quality factor.

Experimental characterization of Sigma Delta Radio over fiber system for 5G C-RAN downlink

Muhammad Usman Hadi,Pier Andrea Traverso,Giovanni Tartarini,Hyun Jung 한국통신학회 2020 ICT Express Vol.6 No.1

Radio over Fiber is a promising technology for the 5G Cloud Radio Access Network. We demonstrate experimentally Sigma Delta Radio over Fiber by means of Sigma Delta Modulator (SDM) subsequently replacing expensive digital to analog converters. A second order SDM is proposed for LTE 20 MHz signal having 256 QAM modulation on a carrier frequency of 3.5 GHz for 10 Km of fiber length. The performance is reported in terms of error vector magnitude, adjacent channel leakage ratio and eye-opening penalty. The results show that the proposed architecture performance is cost and power efficient solution for next-generation wireless networks.

The Impact of Knowledge Management Processes on Knowledge Sharing Attitude: The Role of Subjective Norms

Aneela SYED,Nagina GUL,Hadi Hassan KHAN,Muhammad DANISH,S.M. Nabeel Ul HAQ,Bilal SARWAR,Usman AZHAR,Wahab AHMED 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1

Constructed upon Knowledge Management (KM) processes, the current study aims to investigate the interrelationship between Knowledge Sharing (KS) attitude among the faculty members and KM processes in higher education institutes (HEIs) in Pakistan along with the intervening role of subjective norms between KM processes and KS attitude. This research incorporated the theory of Planned Behavior (TPB) and the theory of Reasoned Action (TRA) to conceptualize the KS behavior by using a sample frame of 302 academic and administrative staff from research-based HEIs in Quetta, Pakistan. A questionnaire-based survey was conducted on permanent faculty members from different universities of Quetta, Pakistan. The finding of the study shows a positive attitude among the researchers. The study empirically examined the interface between KM processes and KS attitude and higher education performance while providing valuable insights into the prevailing literature by investigating the mediating role of subject norms. The impact of subjective norms on KS attitude and KM process indicates the importance and basic determinant in organizational premises and improvement of skills of faculty management in HEIs. The partial mediation also reveals the importance of subjective norms in the development of faculty members’ KM and KS attitude process.

Poster Session : PS 0452 ; Infectious Disease ; A Patient with Acute Disseminated Encephalomyelitis Caused by West Nile Virus Infection

( Eko Oktiawan Wicaksono ),( Bramantono Soekarman ),( Usman Hadi ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: West Nile virus (WNV) is an arbovirus (arthropode borne viruses), wild and pet birds are the source of infection of this virus, although most patients with WNV infection reveal no symptoms (70-80 %) or mild fi u-like symptoms, but in some patients develop into severe disease involving the central nervous system (CNS), including meningitis, encephalitis, acute disseminated encephalomyelitis (ADEM) and acute paralysis, so that the disease has a greater potential to cause health problems. Methods: This case report is intended to inform and to increase awareness that WNV is already exist and spread in Indonesia and has potentials to make serious health problem, so interventions to manage environment is needed to minimize vector population Results: We reported a case of a man 17 years old, came to the hospital with fever and followed by upper and lower limb weakness caused by WNV infection, the confi rmation diagnosis was made by PCR examination. The results magnetic resonance imaging (MRI) appear of multi-focal lesions similar to the image of bilateral ischemic infarcts with gliosis in the cervical spinal cord asymmetrical, mesencephalon, cerebral peduncle, insulae gyrus and uncus, putamen, periventricular, pericolosal, corona radiata, centrum semiovale. finally, the patient was diagnosed as ADEM, and cured with completely recovery without sequel with corticosteroid and intravenous immunoglobulin treatment. Conclusions: Severe CNS symptoms can occur in people infected with West Nile virus, and complete recovery with supportive therapy; this is the fi rst case WNV infection reported in Indonesia.

Relationship of the Big Five Personality Traits and Risk Aversion with Investment Intention of Individual Investors

SARWAR, Danish,SARWAR, Bilal,RAZ, Muhammad Asif,KHAN, Hadi Hassan,MUHAMMAD, Noor,AZHAR, Usman,ZAMAN, Nadeem uz,KASI, Mumraiz Khan Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.12

This empirical research is aimed at testing the relationship of the big five personality traits namely openness to experience, extraversion, consciousness, agreeableness, neuroticism, and risk aversion with the investment intention of individual investors belonging to Balochistan, Pakistan. The primary data is collected through a self-administered questionnaire (a structured form that consists of a series of closed-ended and open-ended questions) from a sample of 397 active individual investors belonging to different districts of the province. The data is empirically analyzed by applying the Partial Least Square (PLS) path modeling technique by using the estimation package available in Smart-PLS. The findings of this study suggest that all the variables are statistically significant with investors' investment intention with risk aversion as the strongest predictor. Moreover, openness to experience, extraversion, consciousness, agreeableness, and risk are significantly and positively related to an investor's investment intention, whereas neuroticism is negatively related to an investor's investment intention. The results extended by this study can be used by financial planners and investment bankers to channelize the available financial resources in diversified portfolios. The results will help financial planners to make available diverse investment alternatives for investors in Balochistan, thus catering to their unique needs. Academia must offer courses on contemporary finance paradigm based on behavioral finance to enable future business graduates to make wise financial decisions.

Optimality of Linear MIMO Detection for 5G Systems via 1-Opt Local Search

Khurshid Kiran,Khan Adnan Ahmed,Siddiqui Muhammad Haroon,Hadi M. Usman,Rashid Imran,Imran Muhammad 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.2

Multiple input multiple output (MIMO) symbol detection problem belongs to non-deterministic polynomial acceptable hard combinatorial optimization (CO) class. One of the key trials in design of MIMO scheme is to develop a low complexity detection algorithm without much compromise in performance. Detection approaches proposed in the literature can be split into non-linear and linear algorithms. Vertical Bell-Labs Layered Space Time (V-BLAST) and Sphere Decoder (SD) are non-linear methods used for extracting transmitted data; whereas, Zero-Forcing (ZF) and Minimum Mean Square Error (MMSE) detections are comparatively in complex and eff ectual linear techniques. In this work, the heuristic 1-Opt local search method used for solving computationally hard combinatorial optimization problems is applied to the ZF and MMSE detection algorithms. First, simple MIMO decoding using ZF and MMSE is accomplished to fi nd the estimated symbol then the transmitted symbol is calculated using the heuristic 1-opt approach by means of the estimated symbol. Simulation results demonstrate that 1-opt search when applied to the ZF and MMSE displays better bit error rate (BER) performance than the simple ZF and MMSE detectors. It is also verifi ed through simulations that the proposed 1-Opt based detectors display better BER performance as compared to the complex nonlinear VBLAST and SD at considerably reduced complexity. Hence, the proposed detectors are appropriate for eff ective hardware implementations.

Poster Session : PS 0374 ; Infectious Disease ; In Vitro Antiplasmodial Effect of Propolis Water Extract

( Vitanata Muhammad Arfijanto ),( Musofa Rusli ),( Nurul Azizah ),( Akbar Fahmi ),( Usman Hadi ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Effi cacy of such antimalarial therapies (e.g ACT, eg. chloroquine, sulphadoxine- pyrimethamine, and quinine) has declined, and there is an urgent need to investigate antiplasmoidal effect of propolis as natural source novel antimalarial substance. Methods: It is a laboratory experimental study. The sample is thin blood smear infected with 3D7-strain intraerythrocytic P. falciparum in vitro. The thin blood smear made from each well in microplate tested with propolis water extract in dose of 100, 10, 1 and 0.1 μg/mL. Observations under microscope (1000-fold optical enlaregement) on sample stained with Giemsa on hour-0 and hour-48 were done, to describe the percentages of parasitemia, growth, and inhibition. Probit analysis was conducted to determine the IC50 of propolis water extract. Results: Inhibition percentages for dose of propolis water extract 100; 10, 1 and 0.1 μg/mL, are 33.33%, 13.70%, 11.76% and 5.88%, respectively. The experimental result show that propolis is related to the antiplasmodial activity. The probit analysis showed propolis IC50 is 2572,65 μg/mL. Conclusions: Propolis water extract had antiplasmodial effect on intraerythrocytic P. falciparum in vitro. Propolis has the potential to be developed as an anti-malarial drug in the future.

Surface matrix functionalization of ceramic-based membrane for oil-water separation: A mini-review

Yusuf Olabode Raji,Mohd Hafiz Dzarfan Othman,Nik Abdul Hadi Sapiaa Md Nordin,Mohd Ridhwan Adam,Zhong Sheng Tai,Jamilu Usman,Ahmad Fauzi Ismail 한국화학공학회 2020 Korean Journal of Chemical Engineering Vol.37 No.10

Advanced filtration requires a cost-effective, highly efficient and environmentally friendly membrane fabrication to achieve excellent and extreme oleophobic and hydrophilic states with an appropriate surface functionalization approach. For an efficient oil-water separation, surface material and structure have been categorized as superoleophobic (high oil repellency) and superhydrophilic (strong affinity to water). This can be attributed to their selective mechanisms. In addition, it is very important to consider these key factors as they will imperatively provide a unique capability to exhibit surface roughness, stimulate low and high surface energy, and improve surface chemistry, which makes membranes function efficiently for the oil and water separation system. In this review article, the application of ceramic membrane for oily water treatment and the principle of superhydrophilic and superoleophobic ceramic membrane for oil-water separation are elaborated and, in addition, the current progress for the use of inorganic material to functionalize ceramic membrane surface based on physical and chemical methods is appraised. Finally, the challenges and outlook on the membrane for oily-water treatment are briefly examined.