Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Chulalongkorn University

Journal

2006

Discipline
Keyword
Publication

Articles 1 - 30 of 340

Full-Text Articles in Entire DC Network

Announcement And Call For Papers, T. Werawatganon Dec 2006

Announcement And Call For Papers, T. Werawatganon

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Pilot Project Of Blood Gas And Electrolyte Analyzer Network At King Chulalongkorn Memorial Hospital, N. Charuruks, P. Lekngam, M. Wongcharoenvuthi, S. Suwannabutra, G. Srichindarat Dec 2006

Pilot Project Of Blood Gas And Electrolyte Analyzer Network At King Chulalongkorn Memorial Hospital, N. Charuruks, P. Lekngam, M. Wongcharoenvuthi, S. Suwannabutra, G. Srichindarat

Chulalongkorn Medical Journal

No abstract provided.

Go to article

A Case Study On Patient Management After Venipuncture, V. Wiwanitkit Dec 2006

A Case Study On Patient Management After Venipuncture, V. Wiwanitkit

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Genetically Modified Mosquitoes: A New Strategy To Control Mosquito Borne Diseases, Padet Siriyasatien, Usavadee Thavara Dec 2006

Genetically Modified Mosquitoes: A New Strategy To Control Mosquito Borne Diseases, Padet Siriyasatien, Usavadee Thavara

The Thai Journal of Veterinary Medicine

Mosquito borne diseases remain a major human and animal health concern in many areas of the world. Chemical control strategy faces a number of problems including the development of insecticide resistance in mosquitoes, the impact of insecticides on human and animal health and the environment and the constant inability to control mosquitoes effectively. Advances in the knowledge about mosquito-pathogen relationships and the molecular biology of mosquitoes make it now possible to produce mosquito strains that are unable to transmit various parasites or viruses. Strategies of using the genetically modified mosquitoes to control mosquito borne diseases are discussed here.

Go to article

Current International Laboratory Guidelines For Diagnosis Of Diabetes Mellitus, N. Charuruks Dec 2006

Current International Laboratory Guidelines For Diagnosis Of Diabetes Mellitus, N. Charuruks

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Rapid Isolation Of Dna From The Mucus Of Asian Arowana (Scleropages Formosus, Osteoglossidae), Nantarika Chansue Dec 2006

Rapid Isolation Of Dna From The Mucus Of Asian Arowana (Scleropages Formosus, Osteoglossidae), Nantarika Chansue

The Thai Journal of Veterinary Medicine

Owing to arowana being listed in CITES, DNA diagnostics should not rely on conventional methods of obtaining tissue samples. A non-invasive method of obtaining material containing DNA has been developed. Mucus samples for DNA isolation can be obtained by cotton swabbing the arowana body surface with subsequent purification of DNA fragments by using phenol/chloroform. DNA sample quality is assessed by UV absorbancy at wave lengths of 260 nm and 280 nm, as well as by calculating the absorbancy ratio involving 260 nm/280 nm results in order to determine DNA sample quality and quantity. Electrophoresis is employed to assess DNA quantity …

Go to article

Morphological Changes In The Oviduct Of Culling Replacement Gilts, Paisan Tienthai, Kriengyot Sajjarengpong, Padet Talummuk Dec 2006

Morphological Changes In The Oviduct Of Culling Replacement Gilts, Paisan Tienthai, Kriengyot Sajjarengpong, Padet Talummuk

The Thai Journal of Veterinary Medicine

The aim of this study was to investigate the morphological changes of the oviduct from 30 culling replacement gilts and 6 control sows. Blood samples and female genital organs were taken immediately after slaughter. Post-mortem examinations were made on the genital organs and oviductal samples, i.e. utero-tubal junction (UTJ), isthmus and ampulla, were collected and fixed for histological analysis. Observations indicated that the reasons for culling the gilts were 'no estrus' (68%) and 'repeat breeding' (32%). The greatest pathological changes (67%) were found in repeat breeding gilts, whereas 52% of no estrous gilts were at prepubertal phase. The female hormonal …

Go to article

Ecg Quiz, Chollada Buranakarl, Kris Angkanaporn, Anusak Kijtawornrat Dec 2006

Ecg Quiz, Chollada Buranakarl, Kris Angkanaporn, Anusak Kijtawornrat

The Thai Journal of Veterinary Medicine

No abstract provided.

Go to article

Culex Tritaeniorhynchus Is Unlikely To Be A Vector For The Porcine Reproductive And Respiratory Syndrome Virus (Prrsv), Kidsadagon Pringproa, Sudchit Chungpivat, Rapee Panyathong, Roongroje Thanawongnuwech Dec 2006

Culex Tritaeniorhynchus Is Unlikely To Be A Vector For The Porcine Reproductive And Respiratory Syndrome Virus (Prrsv), Kidsadagon Pringproa, Sudchit Chungpivat, Rapee Panyathong, Roongroje Thanawongnuwech

The Thai Journal of Veterinary Medicine

At least, 4 mosquito species, Culex tritaeniorhynchus, Culex gelidus, Anopheles vagus and Mansonia uniformis were identified on a pig farm in Nakorn Pathom, Thailand between March 2004 to February 2005. C. tritaeniorhynchus was found to be the predominant species (88.387.63%). To determine whether C. tritaeniorhynchus could serve as a mechanical vector for PRRSV transmission, 2 experiments were conducted on: the duration of PRRSV within the mosquitoes and PRRSV transmission from the PRRSV-infected pigs to naive pigs by the infected mosquitoes. PRRSV nucleic acid could be detected in the whole pooled mosquito samples for up to 48 hours post feeding in …

Go to article

Thoracoscopic-Guided Lung Biopsy In Dogs, Churee Pramatwinai, Atichat Brahmasa, Suwicha Chuthatep, Pasakorn Birksawan, Kiatpicet Komin Dec 2006

Thoracoscopic-Guided Lung Biopsy In Dogs, Churee Pramatwinai, Atichat Brahmasa, Suwicha Chuthatep, Pasakorn Birksawan, Kiatpicet Komin

The Thai Journal of Veterinary Medicine

The study developed a thoracoscopic-guided lung biopsy technique that was able to be performed on the right or left lung lobes of dogs. Ten experimental dogs weighing 6-20 kilograms were anesthetized, ventilated and positioned in a lateral recumbency. Either the left or right hemithorax was approached. Two instrumental ports were utilized, the first port for a telescope was located at the fifth or sixth intercostal space at a half way distance between the vertebral column and sternum. The second port for the grasping forceps, 12-mm in diameter, was located at either the fourth or sixth or seventh intercostal space at …

Go to article

What Is Your Diagnosis?, Pranee Tuntivanich, Suwicha Chuthateph Dec 2006

What Is Your Diagnosis?, Pranee Tuntivanich, Suwicha Chuthateph

The Thai Journal of Veterinary Medicine

No abstract provided.

Go to article

Development Of Flame Retardant Polyphosphoric Acid Coating Based On The Polyelectrolyte Multilayers Technique, K Srikulkit, C Iamsamai, S T. Dubas Dec 2006

Development Of Flame Retardant Polyphosphoric Acid Coating Based On The Polyelectrolyte Multilayers Technique, K Srikulkit, C Iamsamai, S T. Dubas

Journal of Metals, Materials and Minerals

Polyelectrolyte multilayer (PEM) thin films were deposited on silk by sequential deposition of Chitosan and polyphosphoric acid. This PEM composition takes advantage of synergetic effect of the phosphorus and the nitrogen to provide an efficient coating, which prevents fiber decomposition at high temperature. Prior to the PEM assembly on silk fibers, the growth of the film was initially monitored using an atomic force microscopy (AFM). Films formed on silicon wafer after 10, 20, 30, 40 and 60 layers showed somewhat linear increase, which is consistent with the PEM technique. A total thickness ranging from 10 to 107 nm for the …

Go to article

Uv Radiation Energy Consumption In Curing Process Of Epoxidized Sunflower Oil-Organoclay Hybrid Coatings, N Jiratumnukul, R Intarat Dec 2006

Uv Radiation Energy Consumption In Curing Process Of Epoxidized Sunflower Oil-Organoclay Hybrid Coatings, N Jiratumnukul, R Intarat

Journal of Metals, Materials and Minerals

Epoxidized sunflower oil (ESO) can be cured with ultraviolet radiation using either cationic or hybrid initiation. The organoclay was prepared by the cationic exchange process, in which sodium ions were replaced by alkyl ammonium ions. Organoclay was incorporated into epoxidized sunflower oil UVcurable systems. The effects of diluents and types of photo initiators were studied. It was found that the formulations with a hybrid photoinitiator required less energy in the curing process than those with a cationic photoinitator. Moreover, the formulations without diluent can be cured with lower radiation energy than those with diluent.

Go to article

Ph Dependant Coating For Microfluidics Devices, L Limsavarn, C Panithipongwut, P Thongkorn, S T. Dubas Dec 2006

Ph Dependant Coating For Microfluidics Devices, L Limsavarn, C Panithipongwut, P Thongkorn, S T. Dubas

Journal of Metals, Materials and Minerals

The layer-by-layer technique was used to coat the channels of PDMS microfluidics devices. The coating was based on the sequential deposition of polydiallyldimethylammonium chloride (PDADMAC) with a copolymer of polystyrene sulfonate and maleic acid (CoPSS-Maleic) into polyelectrolyte multilayer (PEM). The possible deposition of PEM coating on PDMS was confirm by contact angle which showed the clear transformation of the PDMS surface from hydrophobic to hydrophilic. The later deposition of the PEM coating inside the micro-channels was confirmed by change in electroosmotic flow direction (EOF) and intensity as a function of the number of deposited layers. The EOF measurements revealed that …

Go to article

Techniques To Improve Coating Adhesion Of Superhard Coatings, N Panich, P Wangyao, N Vattanaprateep, S Yong Dec 2006

Techniques To Improve Coating Adhesion Of Superhard Coatings, N Panich, P Wangyao, N Vattanaprateep, S Yong

Journal of Metals, Materials and Minerals

This work addresses the development of different techniques in fabricating TiB2 coatings with increased adhesion to the substrate and with retained high hardness. Titanium diboride (TiB2) coatings were deposited on high-speed steel substrates by magnetron sputtering of a TiB2 target. Attempts to enhance the coating adhesion to the substrate of the TiB2 coatings by controlling the deposition conditions and parameters are presented, such as effect of substrate rotation; annealing temperature; using deposited Cr as an interlayer material and Ti/TiB2 multilayer system. The structure of the coatings was examined by X-ray diffraction, field-emission scanning electron microscopy, and atomic force microscopy. The …

Go to article

Electrochemical Oxidation Process For Mineralization Of Solvent, A Charoensri, F Kobayashi, A Kimura, J Ishii Dec 2006

Electrochemical Oxidation Process For Mineralization Of Solvent, A Charoensri, F Kobayashi, A Kimura, J Ishii

Journal of Metals, Materials and Minerals

A silver mediated electrochemical oxidations is a promising technique for the destruction of organic compounds. The destruction of 30%tributyl phosphate in dodecane in a nitric acid medium containing electrogenerated Ag(II) to carbon dioxide was studied by using a laboratory scale electrochemical oxidation cell. The electrolyte used in this system was 0.5 M AgNO3 in the range of 3 - 7 M HNO3, at operating temperatures of 60ºC ± 5ºC, under ultrasonic agitation and the output of a DC power supply at constant the current was 60 A, respectively. Electrolysis was carried out for 5 hours. The results show that, in …

Go to article

Ultrasound Diagnosis, Phiwipha Kamonrat Dec 2006

Ultrasound Diagnosis, Phiwipha Kamonrat

The Thai Journal of Veterinary Medicine

No abstract provided.

Go to article

Editor’S Note, Ornsiri Cheunsuang Dec 2006

Editor’S Note, Ornsiri Cheunsuang

The Thai Journal of Veterinary Medicine

No abstract provided.

Go to article

Glucose Tolerance Test: A Brief Summary Of Basic Principles And Important Considerations, V. Wiwanitkit Dec 2006

Glucose Tolerance Test: A Brief Summary Of Basic Principles And Important Considerations, V. Wiwanitkit

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Reheat Treated Microstructures And Gamma Prime Particle Coarsening Behaviour At 900˚C Of Cast Nickel Based Superalloy In-738, S Polsilapa, P Sopon, N Panich, N Chuankrerkkul, A Thueploy Dec 2006

Reheat Treated Microstructures And Gamma Prime Particle Coarsening Behaviour At 900˚C Of Cast Nickel Based Superalloy In-738, S Polsilapa, P Sopon, N Panich, N Chuankrerkkul, A Thueploy

Journal of Metals, Materials and Minerals

Long-term isothermal exposure tests were conducted on IN-738 alloy to evaluate the variation of gamma prime particle coarsening behavior after different rejuvenated heat treatment conditions. The longterm thermal exposure tests (up to 2,500 hours) were conducted at 900˚C to assess gamma prime particle coarsening behavior. Metallographic work had been performed on isothermally aged samples to characterize gamma prime coarsening as a function of heating time. At all investigated heating times, the gamma prime particles in all tested specimens were coarser than the initial reheat treated ones. The gamma prime particles appeared to coarsen more into a round shape or agglomerated …

Go to article

Comparative Study Of Direct Test-Cost Between Microscopy Method And Iq200 Automated Urine Microscopy Analyzer, P. Jaiwang, P. Eakwong, V. Wiwanitkit Dec 2006

Comparative Study Of Direct Test-Cost Between Microscopy Method And Iq200 Automated Urine Microscopy Analyzer, P. Jaiwang, P. Eakwong, V. Wiwanitkit

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Effect Of Decarburization On Microstructure Of Dc-Plasma Nitrided H 13 Tool Steel, P Visuttipitukul, C Paa-Rai, K Hideyuki Dec 2006

Effect Of Decarburization On Microstructure Of Dc-Plasma Nitrided H 13 Tool Steel, P Visuttipitukul, C Paa-Rai, K Hideyuki

Journal of Metals, Materials and Minerals

Decarburization may occur during heat treatment of H13 steel resulting in carbon deficiency near the specimen surface. Microstructures and properties of H13 tool steel after surface treatment such as plasma nitriding can be affected by decarburization. This study is focused on the microstructure of plasma nitrided H13 steel. Decarburized and non-decarburized H13 steel was plasma nitrided for 36-72 ks at temperatures varying from 773 to 823 K. The microstructure of the plasma nitrided layer was analyzed by an optical microscope and Electron Probe Micro Analysis (EPMA). The thickness of the nitriding layer is measured. The microstructures of the decarburized and …

Go to article

The Influence Of The Strain Rate On The Material Properties Of The Zinc-Coated Sheet, Z Vadasová, M Mihaliková Dec 2006

The Influence Of The Strain Rate On The Material Properties Of The Zinc-Coated Sheet, Z Vadasová, M Mihaliková

Journal of Metals, Materials and Minerals

In this paper the influence of the strain rate on the material properties of the zinc-coated sheet of the thickness (1; 1.5; 1.8) mm made from low-alloyed steel ZINKODUR 340 was analyzed. Increasing the strain rate is one of the possible ways to increase cold mechanical work in products. The tensile test is the most useful method for determining the material characteristic such as ductility. This contribution analyzes the influence of loading rate in range from 1 to 1000mm/min on material characteristics of tested steel during the tensile test. Strain rate is one of the most significant factors, which affected …

Go to article

The Effect Of Long-Term Thermal Exposure At Elevated Temperatures On Microstructures And Mechanical Properties In Centrifugally Casted Iron-Base Alloy, G Lothongkum, N Thaweepornkhasemsukh, P Wangyao Dec 2006

The Effect Of Long-Term Thermal Exposure At Elevated Temperatures On Microstructures And Mechanical Properties In Centrifugally Casted Iron-Base Alloy, G Lothongkum, N Thaweepornkhasemsukh, P Wangyao

Journal of Metals, Materials and Minerals

This work has an aim to study and investigate the relationship between high temperature exposure conditions on microstructural evolution and mechanical properties in the iron-based alloy, Fe-30.8 Ni - 26.6 Cr alloy, strengthened by carbide precipitation. Two exposure temperatures (900 and 1000°C) with various thermal exposure times are introduced to the as-received alloy. After short-term exposure, it was found that the secondary carbides precipitated early near the primary carbides, which were chromium and niobium/titanium carbide networks. The secondary carbide precipitations were also found in the dendrite cores. The amounts of needle-like carbides and secondary carbide films increased with time and …

Go to article

Transparent Coating Materials Based On Inorganic/Organic Composites, K Srikulkit, N Rojtinnakorn, R Charoensak Dec 2006

Transparent Coating Materials Based On Inorganic/Organic Composites, K Srikulkit, N Rojtinnakorn, R Charoensak

Journal of Metals, Materials and Minerals

A siloxyl group functionalized copolymer of low molecular weight was synthesized, aiming at preparing transparent inorganic/organic coating composites. Two types of coating systems were investigated: two-component system (based on functionalized copolymer-HMMM) a three-component system (based on functionalized copolymer-HMMM-TEOS). Their properties were investigated and compared. Coating films obtained from these systems exhibited good optical clarity, which was largely dependent on the content of indicated Materials. For instance, to prevent phase separation in the 3- component system, TEOS was "effectively" linked to pendent siloxyl groups on the organic moiety Hence, coating formulations containing a high degree of pendent siloxyl groups exhibited better …

Go to article

Weakly Positive Urine Pregnancy Diagnostic Test Rate:A Study On Laboratory Incidence, P. Ekawong, V. Wiwanitkit Dec 2006

Weakly Positive Urine Pregnancy Diagnostic Test Rate:A Study On Laboratory Incidence, P. Ekawong, V. Wiwanitkit

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Comparison Of Efficacy Between Nalbuphine, Tramadol And Ondansetron In Treatment Of Postanesthetic Shivering After Spinal Anesthesia For Cesarean Delivery, D. Tamdee, O. Kyokong, S. Charuluxanan Dec 2006

Comparison Of Efficacy Between Nalbuphine, Tramadol And Ondansetron In Treatment Of Postanesthetic Shivering After Spinal Anesthesia For Cesarean Delivery, D. Tamdee, O. Kyokong, S. Charuluxanan

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Chain Of Custody, N. Tansrisawad Nov 2006

Chain Of Custody, N. Tansrisawad

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Mean Time Spent On Gross Exam Of Complete Forensic Autopsy At Chulalongkorn Forensic Medicine Center, N. Tansrisawad, T. Jong Sakul, U. Hoonwijit, K. Vongpaisarnsin Nov 2006

Mean Time Spent On Gross Exam Of Complete Forensic Autopsy At Chulalongkorn Forensic Medicine Center, N. Tansrisawad, T. Jong Sakul, U. Hoonwijit, K. Vongpaisarnsin

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Prevalence Of Depression In 4-6 Weeks Postpartum Periodand Related Factors Among Mothers Of Infantsin Neonatal Intensive Care Unit (Nicu),King Chulalongkorn Memorial Hospital, C. Roomruangwong, S. Tangwongchai, A. Kuntula Nov 2006

Prevalence Of Depression In 4-6 Weeks Postpartum Periodand Related Factors Among Mothers Of Infantsin Neonatal Intensive Care Unit (Nicu),King Chulalongkorn Memorial Hospital, C. Roomruangwong, S. Tangwongchai, A. Kuntula

Chulalongkorn Medical Journal

No abstract provided.

Go to article

Next Last