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Search Results: 1 - 10 of 4253 matches for " Faez Firdaus Jesse Abdullah "
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Sero-Prevalence of Caseous Lymphadenitis Evaluated by Agar Gel Precipitation Test among Small Ruminant Flocks in East Coast Economic Regions in Peninsular Malaysia
Abdinasir Yusuf Osman,Faez Firdaus Jesse Bin Abdullah,Abdul Aziz b Saharee
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.3474.3480
Abstract: Seroepidemiological survey of Caseous Lymphadenitis (CLA), a bacterial infection in sheep and goats was conducted in East Coast Economic Regions (ECER) in peninsular Malaysia. A total of 422 animals (n = 422) from 15 small ruminant farms (sheep and goats) in the four states were screened during the period from January to April 2011. The management practices that could be associated with CLA occurrence was also analyzed. The objective of this survey was to determine the overall status of CLA infections in small ruminants. AGPT was conducted on serum samples collected from animals. About 47 samples out of 422 yielded a positive reaction for AGPT test. The frequency of CLA infections was estimated at 11.1%. Management practices were analyzed through questionnaire. All farmers (15/15) had semi-extensive rearing system; 27.6% (13/47) of farmers had periodical veterinary services; 10.6% (5/47) took note of animals with clinical signs of CLA; 14.8% (7/47) were aware of the zoonotic potential of this disease. Lack of sanitary measures and epidemiological studies led the dissemination of this disease in Malaysia. Moreover, the economic importance of this disease seems to be overlooked by both individual and state level allowing existence of endemic nature of the disease in this country. Therefore, further epidemiological studies using reliable diagnostic tools and application of appropriate management practices need to be implemented for aiding control and eradication programs for this disease.
Haematological and Biochemical Alterations in Mice Following Experimental Infection with Whole Cell and Exotoxin (PLD) Extracted from C. Pseudotuberculosis
Abdinasir Yusuf Osman,Faez Firdaus Jesse Abdullah,Abdul Aziz Saharee,Abd Wahid Haron,Jasni Sabri,Rasedee Abdullah
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.4660.4667
Abstract: Corynebacterium pseudotuberculosis is the etiological agent of caseous lymphadenitis, a chronic infectious disease of sheep and goats. Despite the growing interest of this organism, little is known about the causality and effect of this organism on haematological and biochemical values. The purpose of this research, therefore was to determine haematological and serum biochemical features in mice inoculated with whole bacterium and exotoxin (PLD) extracted from C. pseudotuberculosis. The study was performed on apparently healthy mice of 2-3 weeks old (n = 64). The mice were divided equally into 3 groups; namely whole bacterium, exotoxin (PLD) and control group. Mice of whole bacterium group were exposed intraperitoneally to 1 mL of the inoculums containing 109 Colony-Forming Unit (CFU)/mL of live C. pseudotuberculosis. Exotoxin group were exposed intraperitoneally with a single dose of exotoxin (PLD) extracted from C. pseudotuberculosis. Mice served as a control group were challenged intraperitoneally to 1 mL of Phosphate-Buffered Saline (PBS), pH 7. Following post-infection, the mice were subjected for blood sample collection using cardiac puncture method for haematological and biochemical analysis. The results of this study revealed that there were significant decrease (p<0.05) in Hb, thrombocytes count and significant increase in WBC, neutrophils, monocytes counts in the infected group. Biochemically, there were highly significant increase (p<0.05) in the mean levels of CK, AST, ALP and ALT. The mean level of albumin in exotoxin group was significantly lower (p<0.05) compared to C. pseudotuberculosis and control groups while globulin level was significantly higher in C. pseuodotuberculosis group after 48 h. In serum electrolytes, mean level of potassium and phosphate were significantly (p<0.05) higher in infected groups compared to control group while there was no significant (p<0.05) difference in the levels of sodium, calcium and chloride. In conclusions, the present study of experimental nature showed that C. pseudotuberculosis and its exotoxin (PLD) cause disturbances in blood factors and electrolytes and pointed out that t hese haematological and biochemical alterations should be taken into account in the context of diagnosis and treatment of valuable infected hosts in order to prevent further consequences.
Hepatogenous Photosensitization in Cattle- A case Report
Faez Firdaus Jesse,Siti Zubaidah Ramanoon
Veterinary World , 2012, DOI: 10.5455/vetworld.2012.764-766
Abstract: [Vet World 2012; 5(12.000): 764-766]
Polymerase Chain Reaction Detection of C. pseudotuberculosis in the Brain of Mice Following Oral Inoculation
Faez Firdaus Jesse,Lawan Adamu,Abdinasir Yusuf Osman,Ahmad Fauzan Bin Muhdi
International Journal of Animal and Veterinary Advances , 2013,
Abstract: The aim of present study was to detect the presence of C. pseudotuberculosis in the brain of the mice following oral inoculation as a model using PCR. Caseous lymphadenitis is a chronic and subclinical disease of sheep and goats which has universal distributions, presenting enormous animal and flock prevalence. Total of 16 mice were used for this study, 8 mice were inoculated orally with 1.0 mL sterile phosphate buffered saline pH 7, while another 8 mice were inoculated with 1.0 mL of 109 colony forming unit of C. pseudotuberculosis. Seven different organs were collected during post mortem for the detection ofC. pseudotuberculosis The result indicated 3 positive samples in lymph nodes, 5 in the brain and 1 in the liver. The PCR used in the present study may successfully be applied for the detection and diagnosis of C. pseudotuberculosis in the brain of the mice following oral inoculation.
DESIGN OPTIMISATION OF AN UNMANNED UNDERWATER VEHICLE
FIRDAUS ABDULLAH,MATTHIEU FERRARO,ANDREW RIGIT
Journal of Engineering Science and Technology , 2007,
Abstract: The results of fluid flow simulation around an unmanned underwater vehicle (UUV) are presented in this paper. The UUV represents a small submarine for underwater search and rescue operation, which suits the local river conditions. The flow simulation was performed with a commercially available computational fluid dynamics package, Star-CD. The effects of the UUV geometry on the velocity and pressure distributions on the UUV surface were discussed for Re=500,000 and 3,000,000. The discussion led to an improved design of the UUV with a smoother velocity profile around the UUV body.
Genotoxic Potential of Shrimp Pastes (Belacan) Extracts Using Umu Test  [PDF]
Ahmad Rohi Ghazali, Yvonne Sipain, Nor Fadilah Rajab, Siew Ee Ling, Norain Ramli, Rozaini Abdullah, Zaliha Harun, Firdaus Kamarulzaman
Food and Nutrition Sciences (FNS) , 2012, DOI: 10.4236/fns.2012.34073
Abstract: This study was conducted to observe the genotoxic effects of aqueous, methanol, hexane and dichloromethane extracts of “belacan” (shrimp paste) taken from three local districts in Melaka, Malaysia (Kelemak, Batang Tiga & Pantai Puteri). The umu test which was used as the screening test was conducted with and without the presence of metabolic activation system. Without the presence of metabolic activation system, aqueous extracts from Kelemak showed mutagenicity activity at 5 mg/ml with IR (Induction Rate) = 1.52 ± 0.57 and the methanol extracts showed mutagenic activities at 0.625 mg/ml and 5 mg/ml, which the IR was the highest at 5 mg/ml (2.08 ± 0.09). On the other hand, samples from Batang Tiga, Melaka showed mutagenic effects at all five concentrations for the dichloromethane extract, with IR = 2.09 ± 0.64 as the highest value at 1.25 mg/ml. Methanol extracts also showed positive results at 1.25 mg/ml and 2.5 mg/ml with IR = 1.70 ± 0.33 and IR = 2.12 ± 0.51 respectively, and aqueous extract at 0.625 mg/ml with IR = 1.54 ± 0.48 and 5 mg/ml with IR = 1.74 ± 0.50. There was a significant difference of the mean values of IR between the four different types of “belacan” extracts from Batang Tiga (p < 0.05). All four “belacan” extracts from Pantai Puteri, Melaka did not show any mutagenic effect. With the presence of metabolic activation system, there was no mutagenic effect observed in all four extracts from the three districts. Further study to analyze the contents in the food samples should be done in the future to determine the possible contents in the food samples that might be responsible for the mutagenic activities.
Analisis Parameter Proses Pengecoran Squeeze Terhadap Cacat Porositas Produk Flens Motor Sungai
Firdaus Firdaus
Jurnal Teknik Mesin , 2002,
Abstract: The existing flanges component which is produced by traditional sand casting shows low quality both of the material and dimension, since the product made from recycled material and supported by a very simple technology. The quality of casting is not depends on the microstructure, but also supported by a good appearance. This research is to analyze the effect of process parameters by producing specimens through squeeze casting process using the existing recycled material. Process parameter such as squeeze pressure and punch & die temperature. The process consists of melting the alloys and heating the die in two difference resistance furnaces, ladling the melt into pre-heated die cavity and finally applying pressure by hydraulic power until the melt is fully solidified. After investigating the specimen, the results show that the quantity of the porosity as compared to traditional sand casting is decreasing significantly. Abstract in Bahasa Indonesia : Produk flens yang ada, dihasilkan dari pengecoran cetakan pasir dengan bahan baku daur-ulang dan didukung oleh teknologi sederhana, bermutu rendah baik dari segi bahan maupun dimensi. Mutu hasil cor yang baik tidak hanya ditentukan dengan strukturmikro yang baik dan homogen tetapi juga dengan kekuatan dan penampakan yang baik. Penelitian ini mencoba menganalisis pengaruh parameter proses pengecoran squeeze paduan aluminium daur ulang yang ada dengan cara memvariasikan parameter tekanan squeeze, dan temperatur punch & die. Langkah proses squeeze casting meliputi pemanasan logam dan die dalam dua dapur induksi berbeda, dilanjutkan dengan penuangan logam cairan ke dalam die dan diteruskan dengan pemberian tekanan selama waktu tertentu. Setelah melakukan beberapa pengujian terhadap spesimen, hasil yang diperoleh menunjukkan bahwa persentase porositas yang dihasilkan menurun secara signifikan dibandingkan dengan proses pengecoran cetakan pasir yang ada. Kata kunci: pengecoran squeeze, porositas, paduan aluminium daur ulang.
The Effects of Short Health Messages Intervention in Improving Knowledge and Attitude on Sexual and Reproductive Health among Late Adolescents at Colleges in Malaysia  [PDF]
Firdaus Ujang, Rosnah Sutan
Open Journal of Preventive Medicine (OJPM) , 2018, DOI: 10.4236/ojpm.2018.88019
Abstract: Sexual and reproductive health problems among adolescents are increasing in trend. Inadequate knowledge of sexual and reproductive health is the main cause of problems in sexual and reproductive health. Short messages service (SMS) intervention has been implemented widely in health education and the outcomes are positive. Hence, this study was conducted to evaluate the effects of mobile phone messaging in improving sexual and reproductive health among late adolescents (age 18 - 19 years old). A quasi-experimental study was conducted in two Professional Vocasional Colleges in Malaysia. A total of 116 respondents in the intervention group and 130 respondents in the control group had completed the study. There was a series of 24 messages (SMS) sent to the respondents biweekly for 12 weeks. The adolescent girls (mean knowledge score 15.90, sd ± 3.321) in the intervention group had a significantly (P = 0.007) higher mean score in knowledge of sexual and reproductive health than boys (mean knowledge score 13.87, sd ± 4.003) at post intervention. The adolescent boys (mean knowledge scores 15.35, sd ± 4.748) in the control group had a significantly (P = 0.009) higher mean score for knowledge on HIV/AIDS than girls (mean scores 13.08, sd ± 4.325) at post intervention. In the intervention group, the number of respondents with good knowledge and good attitude on HIV/AIDS increased at 3 months post intervention. SMS intervention on knowledge of sexual and reproductive health for adolescents was accepted and effectively improved the knowledge scores and sustained even after 3 months post intervention. Therefore, the SMS intervention should be implemented as an intervention package to improve knowledge and reduce risk in developing sexual and health related problems among adolescents.
Effect of Inductive Coil Shape on Sensing Performance of Linear Displacement Sensor Using Thin Inductive Coil and Pattern Guide
Norhisam Misron,Loo Qian Ying,Raja Nor Firdaus,Norrimah Abdullah,Nashiren Farzilah Mailah,Hiroyuki Wakiwaka
Sensors , 2011, DOI: 10.3390/s111110522
Abstract: This paper discusses the effect of inductive coil shape on the sensing performance of a linear displacement sensor. The linear displacement sensor consists of a thin type inductive coil with a thin pattern guide, thus being suitable for tiny space applications. The position can be detected by measuring the inductance of the inductive coil. At each position due to the change in inductive coil area facing the pattern guide the value of inductance is different. Therefore, the objective of this research is to study various inductive coil pattern shapes and to propose the pattern that can achieve good sensing performance. Various shapes of meander, triangular type meander, square and circle shape with different turn number of inductive coils are examined in this study. The inductance is measured with the sensor sensitivity and linearity as a performance evaluation parameter of the sensor. In conclusion, each inductive coil shape has its own advantages and disadvantages. For instance, the circle shape inductive coil produces high sensitivity with a low linearity response. Meanwhile, the square shape inductive coil has a medium sensitivity with higher linearity.
Studi Eksperimental Pengaruh Paramater Proses Pencetakan Bahan Plastik Terhadap Cacat Penyusutan (Shrinkage) Pada Benda Cetak Pneumatics Holder
Firdaus Firdaus,Soejono Tjitro
Jurnal Teknik Mesin , 2002,
Abstract: Pneumatics holder which supports all pneumatics components requires high tolerance in dimension. Therefore, perfect design process which means accurate process parameter selection will enable us to produce as cast holder as required. This experimental study is to produce pneumatics holder by combining several process parameters on injection moulding machine, such as : melting point, air pressure level, holding time and pressure duration. The results show that the process parameter significantly influence the as cast holder product as required, so that the process parameter selected should be in accordance with the raw plastic material availiable. Abstract in Bahasa Indonesia : Akurasi dimensi yang dibutuhkan bagi benda cetak pneumatics holder yang berfungsi sebagai dudukan katup-katup atau komponen pneumatik lainnya tergolong cukup tinggi. Untuk itu diperlukan desain proses yang baik agar hasil cetakan dapat memenuhi syarat fungsionalitas. Proses yang baik tentu saja harus mempertimbangkan parameter proses yang sesuai sehingga hasil yang diharapkan dapat terpenuhi. Studi eksperimental ini melakukan percobaan pembuatan produk pneumatics holder dengan memvariasikan beberapa parameter proses pada mesin injection moulding yang ada. Parameter proses meliputi: temperatur leleh (melting point), tekanan udara (air pressure), waktu penahanan (holding time), dan waktu penekanan (pressure duration). Hasil studi menunjukkan bahwa pemilihan parameter yang tepat sangat berpengaruh terhadap hasil benda cetak yang diinginkan, sehingga perlu dicari parameter terbaik untuk setiap benda cetak berdasarkan jenis bahan baku plastik yang ada. Selain itu, parameter temperatur leleh sangat signifikan pengaruhnya terhadap cacat shrinkage.
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