2,030 research outputs found

    Engineering of E. coli for increased production of Llactic acid

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    P2A0 Post Seksio Sesarea Transperitoneal Profunda Dengan Sindrom Sheehan Et Causa Perdarahan Pasca Persalinan Dini Et Causa Atonia Uteri

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    Sindrom Sheehan (SS) adalah hypopituitarism pasca persalinan akibat nekrosis iskemik yang menghasilkan hipotensi akibat perdarahan masif saat atau sesudah persalinan. Riwayat perdarahan pasca persalinan (PPP), gagal menyusui, dan amenore sekunder penting sebagai penunjuk diagnosis. Sindrom Sheehan sering berkembang dan terdiagnosis lambat. Diagnosis dini dan pengobatan yang sesuai sangatlah penting untuk menurunkan morbiditas dan mortalitas pasien. Laporan kasus ini menjelaskan seorang wanita usia 28 tahun, dengan PPP 5 jam post seksio sesarea transperitoneal profunda (SSTP) di luar atas indikasi (ai) gawat janin. Pemeriksaan fisik didapatkan keadaan umum buruk, kesadaran somnolen, tekanan darah 100/70 mmHg, nadi 120 kali/menit, pernapasan 24 kali/menit, suhu 36,8 0C, dan konjungtiva palpebra anemis. Pemeriksaan obstetrik didapatkan tinggi fundus uteri (TFU) tidak teraba, tidak ada kontraksi, dan tidak ada perdarahan aktif. Hasil laboratorium menunjukkan Hemoglobin 3,5 g/dL. Dilakukan observasi tanda-tanda vital, pemberian O2 10 L sungkup, intravena fluid drip (IVFD) dua jalur berupa guyur ringer laktat (RL) dan RL + oksitosin 20 IU 10 tetes/menit, pemasangan kateter urin menetap dengan evaluasi input dan output cairan, dan laparatomi cito berupa histerektomi subtotal. Pasca operasi pasien dirawat di Intensive Care Unit (ICU) 19 hari lalu dilanjutkan perawatan di bangsal selama 3 hari. Hingga akhir perawatan pasien komposmentis, air susu ibu (ASI) tidak keluar, dan tidak ditemukan adanya perdarahan pervaginam

    Ethnobotanical studies on Berberis aristata DC. root extracts

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    The aqueous and alcoholic extract of fresh Berberis aristata DC roots, as well as aqueous extract of dried roots were compared for their antibacterial and antifungal activities by the disc diffusion method.All three extracts showed wide antibacterial activity against Gram-positive bacteria. Among the Gramnegative bacteria tested, the antibacterial activity was limited to Escherichia coli, Salmonellatyphimurium, Shigella dysenteriae type 1 and Vibrio cholerae; with the best activity against V. cholerae. MICs of the alcoholic extracts against Gram-positive bacteria ranged between 3.8 ×10-3 to 6.1 ×10-3 mg/ml and for Gram-negative bacteria from 6.1 ×10-3 to 7.6 10-3 mg/ml. The MICs for Candida species ranged between 0.02 to 3.8 ×10-3 mg/ml and for Aspergillus species, it was 3 × 10-3 mg/ml. All three extracts also had antifungal activity against the fungal species tested, except Candida krusei. The extracts of B. aristata also demonstrated anti-inflammatory, analgesic, and antipyretic activities.Chemical analysis revealed the presence of alkaloids, amino acids, tannins, terpenes, resins, phenols and reducing sugars as major compounds. FTIR-spectral analysis of all the extracts revealed thepresence of berberine, as a major constituent, along with other chemical constituents

    Thermal Performance of Naturally Ventilated Classroom in the Faculty of Engineering Hasanuddin University, Gowa Campus

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    This study aims to identify the thermal performance of naturally ventilated classrooms of the new campus of Faculty of Engineering, Hasanuddin University in Gowa. The natural ventilation system has three main functions that are to provide healthy air for occupants, to provide thermal comfort to the occupants, and to cool the fabrics in the building interior. Thermal comfort perceived by the user is determined by many factors, including physical, psychological, etc. This research was conducted by using the experimental method with research analysis using CFD (Computational Fluid Dynamics) simulation method. The input parameters in the simulation were obtained through field measurement in the form of room dimension, ventilation open area, and microclimate parameter. The simulation is carried out at maximum open conditions in existing ventilation system with open and closed class door treatment. The simulation treatment of airflow input speeds were 0.25, 0.5, 0.75, and 1 m/s. The results showed that the existing ventilation system of Classroom at Faculty of Engineering (FoE) Hasanuddin University (Unhas) with an opening ratio of 16.59 to 22.76% of the floor area is good enough to flow and distribute comfortable air movement inside the classroom, especially at airflow speeds above 0.5 m/s

    Zahmah social force model for pedestrian movement

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    The Social Force Model is one of the well-known approaches that could successfully simulate pedestrian’s movement realistically. However, it is not suitable to simulate a complex pedestrian movement. Hence, this research proposed a novel model which improved the Social Force Model for simulating high density crowd such as Tawaf. Tawaf is an Islamic ritual, which requires agents to encircle the Kaabah. This ritual has been complex yet unique, due to its capacity, density, and various demographic backgrounds of the agents. A certain set of rules that must be followed by each agent, which introduces anomalies in the flow around the Kaabah. The agents also will be assigned with unique attributes such as; gender, walking speed and intention outlook to make the simulations more realistic. The findings of this research will contribute to the simulation activities of pedestrians in a highly dense population

    A high gain pifa at 2.45 GHz and 5.8 GHz using wireless power transfer techniques for pacemaker application

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    The design of a high gain Planar Inverted F Antenna (PIFA) with two different frequencies for medical pacemaker is presented. Two PIFA designs have been optimized to be operated at ISM band of 2.45 GHz and 5.8 GHz respectively, under tolerable reflection coefficient of less than -10dB. Both of the proposed antennas are developed from copper plate with a simple structure of rectangular patch. All design and simulation has been carried out using Computer Simulation Technology (CST) Microwave Studio Suite. The simulated and measured results of the fabricated antenna on reflection coefficient, bandwidth radiation pattern, and gain are presented to validate the usefulness of the presented design. The 2D Anechoic Chamber and Agilent Technologies Network Analyzer have been used for the measurement. Both 2.45 GHz and 5.8 GHz antennas have successfully manage to achieve high gain of 6dB and 8.2dB respectively with a directional beam pattern. The presented ISM PIFAs could be potential for point-to-point communication using wireless power transfer technique for medical pacemaker application

    The effects of physiological biomechanical loading on intradiscal pressure and annulus Stress in lumbar spine: a finite element analysis

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    The present study was conducted to examine the effects of body weight on intradiscal pressure (IDP) and annulus stress of intervertebral discs at lumbar spine. Three-dimensional finite element model of osseoligamentous lumbar spine was developed subjected to follower load of 500 N, 800 N, and 1200 N which represent the loads for individuals who are normal and overweight with the pure moments at 7.5 Nm in flexion and extension motions. It was observed that the maximum IDP was 1.26 MPa at L1-L2 vertebral segment. However, the highest increment of IDP was found at L4-L5 segment where the IDP was increased to 30% in flexion and it was more severe at extension motion reaching to 80%. Furthermore, the maximum annulus stress also occurred at the L1-L2 segment with 3.9 MPa in extension motion. However, the highest increment was also found at L4-L5 where the annulus stress increased to 17% in extension motion. Based on these results, the increase of physiological loading could be an important factor to the increment of intradiscal pressure and annulus fibrosis stress at all intervertebral discs at the lumbar spine which may lead to early intervertebral disc damage

    Feature extraction of overlapping hevea leaves: a comparative study

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    Automation of rubber tree clone classification has inspired research into new methods of leaf feature extraction. In current practice, rubber clone inspectors has been using several leaf features to identify clone types. One of the unique features of rubber tree leaf is palmate leaflets. This characteristic generates different leaflet positions, where the leaves are overlapping or separated. In this research, we propose keypoint extraction and line detection methods to extract shape and axil (angle between petioles) features of leaflet positions. The results of keypoint extraction methods, namely, SIFT, Harris, and FAST, were compared and discussed for shape feature extraction. Next, Hough transformation and boundary-tracing methods were compared to identify the suitable axil detection method. The evaluation result demonstrates the proper keypoint extraction method for shape context and the clear advantages of Hough Transformation in accuracy of angle detection

    Heat transfer performance of multiple holes impingement cooling technique

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    This research presents the possibility of the jet impingement cooling technique configuration for stator of turbine blade under the transient heat transfer condition. The main goal of this study is to investigate the impingement cooling plate holes configura tion and Reynolds number (Re) effect on the heat transfer which can be observed from the color play of the thermochromic liquid crystal (TLC). The fin dings proved that with the present of the small holes in between the main larger holes capable to enhance the heat transfer across the target surface. However, some criteria of the design need to be taken into count as it may produce different heat transfer performan ce of the impingement cooling technique. Therefore, in the range of predetermined design parameters, only several combinations that prevailed to achieve maximum heat transfer across the target plate
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