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2003

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Articles 271 - 300 of 1917

Full-Text Articles in Medicine and Health Sciences

High Sensation Seeking As A Risk Factorfor Metamphetamine Dependencein Late Adolescence, S. Tangwongchai, P. Rutchatajumroon, P. Warakul, N. Thavichachat Sep 2003

High Sensation Seeking As A Risk Factorfor Metamphetamine Dependencein Late Adolescence, S. Tangwongchai, P. Rutchatajumroon, P. Warakul, N. Thavichachat

Chulalongkorn Medical Journal

No abstract provided.


Irritable Bowel Syndrome In Health Care Professionals In Pakistan, Wasim Jafri, Javed Yakoob, Nadim Jafri, Mahesh Maloni, Saeed Hamid, Hasnain Ali Shah, Shahab Abid Sep 2003

Irritable Bowel Syndrome In Health Care Professionals In Pakistan, Wasim Jafri, Javed Yakoob, Nadim Jafri, Mahesh Maloni, Saeed Hamid, Hasnain Ali Shah, Shahab Abid

Section of Gastroenterology

Objective: To evaluate the symptomatology of irritable bowel syndrome (IBS) among health care professionals attending an IBS symposium in a tertiary care university hospital. Method: A questionnaire designed to incorporate Manning and Rome II criteria was distributed among participants of an IBS symposium, most of them were health care professionals. A total of 100 questionnaires were distributed, 41 had symptoms fulfilling criteria of IBS. In these patients male: female ratio was 28:13 with age range 18-68. Results: The predominant symptom was abdominal pain 87.8 % (36/41) which was aggravated post-prandially 72.2% (29/41), relieved following defecation in 87 % (35/41) with …


Extrarenal Wilms' Tumor, M Yunus, R Hashmi, S H. Hasan, H M. Brohi Sep 2003

Extrarenal Wilms' Tumor, M Yunus, R Hashmi, S H. Hasan, H M. Brohi

Department of Radiology

No abstract provided.


Intensive Care Medical Procedure : Ptsd Symptoms In Children, Ludmila Zaytsev Sep 2003

Intensive Care Medical Procedure : Ptsd Symptoms In Children, Ludmila Zaytsev

Loma Linda University Electronic Theses, Dissertations & Projects

Studies indicate that medical procedures may cause post-traumatic stress (PTS) symptoms (fear, avoidance, sleep disturbances, irritability, concentration difficulties. hypervigilance). It has been suggested that administration of midazolam hydrochloride, a sedative/amnesic medication commonly used in the Pediatric Intensive Care Units (PICU), may help decrease if not prevent the development of PTS symptoms. This study examined if PTS symptoms were related to procedural invasiveness (PI) and whether midazolam had a moderating effect on the development and intensity of PTS symptoms in children. English-speaking children ages 8-16 (N=20) who had been in the PICU for at least 3 days were recruited at Loma …


Prediction Of Fetal Sheep Brain Metabolic Rate During Hypoxia And Cord Occlusion, Adam D. Hickerson Sep 2003

Prediction Of Fetal Sheep Brain Metabolic Rate During Hypoxia And Cord Occlusion, Adam D. Hickerson

Loma Linda University Electronic Theses, Dissertations & Projects

Many investigators have observed that fetal and neonatal animals are remarkably tolerant to hypoxia compared to the adult. The precise mechanisms however are still unclear. In order to better characterize the hemodynamic and metabolic responses of the fetal brain to hypoxic stress, we have designed a mathematical model to predict tissue oxygenation and metabolic rate of the fetal brain during both moderate hypoxia and severe asphyxia.

The model is based on the Krogh cylinder concept and is similar to one previously published by our lab. Several new concepts were added including the ability to run the model over time using …


Multiple Psychosocial Factors As Predictors In The Progression Of Hiv-1 To Aids, Robert Louis Dutile Sep 2003

Multiple Psychosocial Factors As Predictors In The Progression Of Hiv-1 To Aids, Robert Louis Dutile

Loma Linda University Electronic Theses, Dissertations & Projects

Nearly 3.1 million individuals have died of AIDS as of December 2002 and more than 38.6 million individuals were identified as being infected with HIV (Joint United Nations Programme on HIV/AEDS (UNAIDS) and World Health Organization (WHO) 2002). Psychoneuroimmunology is a discipline that increases our understanding of the relationships between psychosocial factors, the central nervous system, the immune system, and disease. From this perspective, this study reviews the biopsychosocial medical model and components of the stress-immunity-health (SET) model. The constructs of stress and social support are discussed and defined referencing current theory and research. In addition, physiological mechanisms of stress …


Effects Of Various Hemostatic Agents On Bone, David Daryl Roland Sep 2003

Effects Of Various Hemostatic Agents On Bone, David Daryl Roland

Loma Linda University Electronic Theses, Dissertations & Projects

Previous studies have evaluated the effects of various hemostatic agents on radicular tissues following apical surgery. The purpose of this study was to examine the early osseous responses to seven hemostatic agents under identical conditions in rabbits. Sixteen adult male New Zealand white rabbits were used for this study. Following anesthesia, utilizing a midline submandibular incision, standardized bony defects were prepared on the lateral-superior regions of the mandible. Test materials were placed using standardized volumes and exposure times. Bone wax, Surgicel, Capset, alginate, Cut-Trol, Hemogin-L, and silver nitrate were compared to control sites irrigated with saline. Test materials or controls …


The Psychological Characteristics Of Obese Children, Thomas Taylor Mitchell Sep 2003

The Psychological Characteristics Of Obese Children, Thomas Taylor Mitchell

Loma Linda University Electronic Theses, Dissertations & Projects

Several studies along with the surgeon general of the United States have identified obesity as a national health issue. Research indicates that adult obesity treatment has relatively poor long-term effects. Consequently increased attention has been given to addressing obesity in children. This focus is particularly vital due to the fact that children are one of the populations showing the most rapid increase in overweight and obesity. The purpose of this study was to identify the some of the unique psychological characteristics of obese children by analyzing the intake data of children and adolescents attending the Loma Linda University Growing Fit …


The Radiopacity Of 29 Resin Restorative Materials Compared To Enamel, Peter Lubisich Iv Sep 2003

The Radiopacity Of 29 Resin Restorative Materials Compared To Enamel, Peter Lubisich Iv

Loma Linda University Electronic Theses, Dissertations & Projects

The radiodensity of a composite resin can greatly influence a clinician's ability to analyze a restoration for failure. The purpose of this study was to determine the relative radiopacities of 29 resin restorative materials compared to enamel, and to verify the comparable radiopacity between shades of 23 of the restorative composite resin materials. Composite resin discs measuring >5mm in diameter and 2 mm in thickness were made and polymerized. Radiographs were taken of the composite resin discs, which included an aluminum step wedge for calibration and a densitometer was used to measure the radiodensity of the composite resin samples. The …


Assessment Of Alveolar Bone Density Using Implant Insertion Resistance Torque, Scott Sangmoo Lee Sep 2003

Assessment Of Alveolar Bone Density Using Implant Insertion Resistance Torque, Scott Sangmoo Lee

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Implant stability during healing is a pre-requisite for successful osseointegration. In the case of early or immediate implant loading, it is necessary to achieve high level of stabilization during surgical placement. Fixture stabilization can be measured by resonance frequency analysis or implant insertion resistance torque measurement. The aim of this study is to correlate pre-operative radiographic bone density to implant insertion resistance torque in human cadaver jaw bone.

Materials & Methods: Sixty-four implant osteotomy sites in human cadaver jaw bones were previously examined radiographically using quantitative computed tomography (QCT) and quantitative cone-beam computed tomography (QCBCT). Forty-two implant insertion sites …


Synovial Fluid Hydrostatic Pressure In The Tmj After Mandibular Advancement In Sus Scrofa, Samuel A. Demirdji Sep 2003

Synovial Fluid Hydrostatic Pressure In The Tmj After Mandibular Advancement In Sus Scrofa, Samuel A. Demirdji

Loma Linda University Electronic Theses, Dissertations & Projects

Mandibular advancement is performed in patients routinely by traditional bilateral sagittal split osteotomy (BSSO) or less commonly by distraction osteogenesis (DO). The influence of mandibular advancement on the temporomandibular joint (TMJ) is well recognized but not fully explored. This study involved the direct measurement of synovial fluid hydrostatic pressure (SFHP) in the TMJ after mandibular advancement by either BSSO or DO in two male mature minipigs, Sus scrofa. Titanium pressure transducers were inserted into the right superior temporomandibular joint spaces of the minipigs and the measurements were displayed on an AC/DC amplifier. The first minipig underwent BSSO, which involved immediate …


Quantification Of Bone Deposition In Onlay Bone Grafting, Gregory Alan Kammeyer Sep 2003

Quantification Of Bone Deposition In Onlay Bone Grafting, Gregory Alan Kammeyer

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to quantitatively evaluate; 1) mandibular posterior mono-cortical block onlay bone graft success rates 2) the amount of grafted bone retained after initial resorption in radiographic projections. Seven consecutive patients with 14 mandibular posterior implant sites requiring bone augmentation for implants of a standard 3.8mm x 10mm dimension were sought. Mono-cortical block bone grafts from the ipsilateral ascending ramus were placed then observed with two standardized CT scans, dividing them into two groups: Group A had the first CT at 4 weeks after graft placement and a second taken before Prosthodontic reconstruction, 36.7 weeks later. …


Validation Of A Serotonin Checklist In A Parkinson’S Disease Population, Kelly Diane Darby-Holder Sep 2003

Validation Of A Serotonin Checklist In A Parkinson’S Disease Population, Kelly Diane Darby-Holder

Loma Linda University Electronic Theses, Dissertations & Projects

Although the distinctive pathological marker of Parkinson’s Disease is the progressive death of neurons that produce dopamine, there are also alterations in the production of quantities of other neurotransmitters, such as norepinephrine and serotonin that contribute to the disease. Parkinson’s Disease (PD) can be divided into two distinct classes based on the manifestation of motor symptoms, Type A and Type B Parkinson’s Disease. Type B PD patients often manifest symptoms in which serotonin deficiency plays an important role, which often includes a history of depression. Within the brain and spinal cord serotonin has wide spread projections, acting as an important …


The Validity And Reliability Of The Motion Sensitivity Test, Faith W. Akin, Mary Jo Davenport Sep 2003

The Validity And Reliability Of The Motion Sensitivity Test, Faith W. Akin, Mary Jo Davenport

ETSU Faculty Works

The Motion Sensitivity Test (MST) is a clinical protocol designed to measure motion-provoked dizziness during a series of 16 quick changes to head or body positions. The MST has been used as a guide for developing an exercise program for patients with motion-provoked dizziness and as a treatment outcome measure to monitor the effectiveness of vestibular rehabilitation therapy. This study determined validity, test-retest reliability, and interrater reliability of the MST. Fifteen individuals with motion-provoked dizziness and ten control individuals were tested during sessions occurring 90 min and/or 24 hr after baseline testing. The MST was found to be reliable across …


Macro Creatine Kinase, V. Wiwanitkit, P. Intaratut Sep 2003

Macro Creatine Kinase, V. Wiwanitkit, P. Intaratut

Chulalongkorn Medical Journal

No abstract provided.


World Frist Aid Day, S. Chittmittrapap Sep 2003

World Frist Aid Day, S. Chittmittrapap

Chulalongkorn Medical Journal

No abstract provided.


Meaning Of Adolescent And Health Services Foradolescents Through Perception Of Thai Students, P. Chaiphibalsarisdi Sep 2003

Meaning Of Adolescent And Health Services Foradolescents Through Perception Of Thai Students, P. Chaiphibalsarisdi

Chulalongkorn Medical Journal

No abstract provided.


Toward Equity In Education: Academic Performancesof Medical Students In Regular, Mesrapand Problem-Based Programs, B. Laisnitsarekul Sep 2003

Toward Equity In Education: Academic Performancesof Medical Students In Regular, Mesrapand Problem-Based Programs, B. Laisnitsarekul

Chulalongkorn Medical Journal

No abstract provided.


Impact Of Anemia In Cancer Patients, N. Voravud, N. Charuruks, W. Limpanasithikul Sep 2003

Impact Of Anemia In Cancer Patients, N. Voravud, N. Charuruks, W. Limpanasithikul

Chulalongkorn Medical Journal

No abstract provided.


The Diagnosis Of Amyotrophic Lateral Sclerosis And Associated Rehabilitation Issues: A Casereport, Chih-Gang Chang, Chen-Liang Chou, Shun-Ping Cheng, Tcho-Jen Liu, Rai-Chi Chan Sep 2003

The Diagnosis Of Amyotrophic Lateral Sclerosis And Associated Rehabilitation Issues: A Casereport, Chih-Gang Chang, Chen-Liang Chou, Shun-Ping Cheng, Tcho-Jen Liu, Rai-Chi Chan

Rehabilitation Practice and Science

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease of unknown etiology. Even though it is uncommon, there are cases seen. Thus it is important for clinicians to understand and catch the key points to its diagnosis. Patients with ALS would usually present with the combination of upper and lower motor neuron symptoms and signs. When the typical combination was found in several anatomic areas in an elderly man especially, the diagnosis is direct. We must also note that at early stage of ALS, the patient can present predominantly with either upper or lower motor neuron symptoms and signs confining only …


Spectrum Of Cutaneous Appendage Tumors At Aga Khan University Hospital, N Yaqoob, Z Ahmad, S Muzaffar, M S. Gill, I N. Soomro, S H. Hasan Sep 2003

Spectrum Of Cutaneous Appendage Tumors At Aga Khan University Hospital, N Yaqoob, Z Ahmad, S Muzaffar, M S. Gill, I N. Soomro, S H. Hasan

Department of Pathology and Laboratory Medicine

Objective: To determine the frequency of various types of cutaneous appendage tumors in our practice.
Method: This is a partly retrospective and partly prospective study conducted at the Department of Pathology, Histopathology Section, The Aga Khan University Hospital, Karachi between 1st January 1997 and 31st December 2001.
Results: One hundred sixty six skin appendage tumors were diagnosed during the study period. 87.3% were benign, while 12.6% were malignant. Male female ratio was almost equal. Mean age was 41.72 years. 37.34% showed eccrine differentiation, 14.45% showed apocrine differentiation and 41.56% showed pilosebaceous differentiation, 6.62% exhibited mixed differentiation. The 5 commonest tumors …


The Epididymal Sperm Survival Interval Following Orchidectomy In Dogs, Sudson Sirivaidyapong, Theerawat Swangchan-Uthai Sep 2003

The Epididymal Sperm Survival Interval Following Orchidectomy In Dogs, Sudson Sirivaidyapong, Theerawat Swangchan-Uthai

The Thai Journal of Veterinary Medicine

The aim of the study was to investigate the motility and viability of canine epididymal spermatozoa, collected from the epididymides following orchidectomy (castration), over a period of time. Sperm samples were collected at 25-28oC from the caudal epididymis, 0, 1, 3, 6, and 12 hours, after the castration of 75 fertile dogs (1-10 years old). Progressive motility and viability of the epididymal sperm decreased over a period of time, after the collection. The epididymal sperm motility was 82.3±6, 76.3±8, 72.0±7, 60.3±9, and 22.7±20% while the percentage of viable spermatozoa was 85.5±5, 78.8±7, 77.5±7, 64.4±7, and 27.1±21 at 0, 1, 3, …


The Efficacy Of Ivermectin (Ivomec®) Against Gastrointestinal Nematodes Of Sheep In Thailand, Vanni Chaisanabunthid, Kanchana Kengkoom, Wantanee Ratanasak, Darunee Buripakdi Lawson Sep 2003

The Efficacy Of Ivermectin (Ivomec®) Against Gastrointestinal Nematodes Of Sheep In Thailand, Vanni Chaisanabunthid, Kanchana Kengkoom, Wantanee Ratanasak, Darunee Buripakdi Lawson

The Thai Journal of Veterinary Medicine

Rectal, faecal samples from 14 sheep were collected 3 times a day (morning, noon and evening) and examined for nematode eggs by the formalin-ether, sedimentation technique and the Brine floatation technique. The faecal egg counts were done by using the Stoll’s dilution, egg counting technique. The sheep were injected with ivermectin (Ivomec®) (0.2 mg/kg) subcutaneously. Three weeks later, faecal samples were collected and examined to determine the outcome of the treatment. It was found that strongyles and Trichuris ovis eggs were absent. It was concluded that Ivomec® showed good efficacy for the treatment of some gastrointestinal nematodes in this study …


The Relationship Between Pathological Gastric Changes And Helicobacter Spp. In Dogs, Nopadon Pirarat, Thepsirin Makbunsri, Sirichoke Sukkamon, Suchada Amornchailertrat, Anudep Rungsipipat, Boonmee Sunyasootcharee Sep 2003

The Relationship Between Pathological Gastric Changes And Helicobacter Spp. In Dogs, Nopadon Pirarat, Thepsirin Makbunsri, Sirichoke Sukkamon, Suchada Amornchailertrat, Anudep Rungsipipat, Boonmee Sunyasootcharee

The Thai Journal of Veterinary Medicine

A study of canine, gastric, Helicobacter spp. infection was performed. A total of 56 biopsied samples of cardia, fundus, body and pyloric antrum, submitted to the Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, during October, 2001 to 2002, were investigated. The objective of this study was to detect Helicobacter spp. infections in the stomach of dogs and to confirm any relationship between the histopathological changes in the stomach with the presence of bacteria. The histopathological results revealed inflammatory cell infiltration 100%(56/56), crypt distortion 69.64%(39/56), lymphoid follicular formation 67.86% (38/56) and epithelial degeneration 28.57%(16/56). The presence of Helicobacter spp. …


Ecg Quiz, Chollada Buranakarl, Kris Angkanaporn, Suwanakiet Sawangkoon Sep 2003

Ecg Quiz, Chollada Buranakarl, Kris Angkanaporn, Suwanakiet Sawangkoon

The Thai Journal of Veterinary Medicine

No abstract provided.


Testing The Dynamic Field Theory: Working Memory For Locations Becomes More Spatially Precise Over Development, Anne R. Schutte, John P. Spencer, Gregor Schöner Sep 2003

Testing The Dynamic Field Theory: Working Memory For Locations Becomes More Spatially Precise Over Development, Anne R. Schutte, John P. Spencer, Gregor Schöner

Department of Psychology: Faculty Publications

The dynamic field theory predicts that biases toward remembered locations depend on the separation between targets, and the spatial precision of interactions in working memory that become enhanced over development. This was tested by varying the separation between A and B locations in a sandbox. Children searched for an object 6 times at an A location, followed by 3 trials at a B location. Two- and 4-year-olds’, but not 6-year-olds’, responses were biased toward A when A and B were 9-in. and 6-in. apart. When A and B were separated by 2 in., however, 4- and 6-year-olds’ responses were biased …


Beneficial Effects Of Flexible Insulin Therapy In Children And Adolescents With Type 1 Diabetes Mellitus, Ramin Alemzadeh, P. Palma-Sisto, Elaine Parton, Joan P. Totka, Mary De Sales Kirby Sep 2003

Beneficial Effects Of Flexible Insulin Therapy In Children And Adolescents With Type 1 Diabetes Mellitus, Ramin Alemzadeh, P. Palma-Sisto, Elaine Parton, Joan P. Totka, Mary De Sales Kirby

College of Nursing Faculty Research and Publications

The purpose of this study was to determine the feasibility of a flexible multiple daily insulin (FMDI) regimen in routine pediatric diabetes care by comparing HbA1c, body mass index (BMI), and episodes of severe hypoglycemia (SH) before and after initiation of FMDI therapy. Data from 44 patients (2-16 years old), on a conventional insulin (CI) regimen, were collected during quarterly diabetes clinic visits. These patients were transitioned from CI to FMDI regimen: pre-meal lispro (bolus) and once or twice daily Humulin Ultralente with or without bedtime Humulin NPH as the basal insulin. There was a significant improvement in …


Diet And Exercise In Low Income, Culturally Diverse Middle School Students, Marilyn Frenn, Shelly Malin Sep 2003

Diet And Exercise In Low Income, Culturally Diverse Middle School Students, Marilyn Frenn, Shelly Malin

College of Nursing Faculty Research and Publications

It is important to understand constructs essential to low-fat-diet and physical-activity behaviors of low-income culturally diverse middle-school-age students, because ethnicity and socioeconomic status influence body weight status, and these groups are most at risk for obesity later in life. In this descriptive study, constructs important in low-fat diet and physical activity in low- to middle-income, culturally diverse middle school students were examined. Revised for cultural/developmental appropriateness and reading level, instruments incorporating constructs from the Health Promotion and Transtheoretical Models were tested with 221 youth. Results demonstrated that percentage of fat in diet, total number of strategies used for a low-fat …


Functional Disability In Patients Of Right Hemisphere Lesions With And Without Hemineglect, Her-Cherng Wang, Chau-Peng Leong, Jui-Kun Chang, Hsiu-Juan Lin, Kwo-Shieng Tuo, Kai-Lan Chang, Sheng-Hsiang Su Sep 2003

Functional Disability In Patients Of Right Hemisphere Lesions With And Without Hemineglect, Her-Cherng Wang, Chau-Peng Leong, Jui-Kun Chang, Hsiu-Juan Lin, Kwo-Shieng Tuo, Kai-Lan Chang, Sheng-Hsiang Su

Rehabilitation Practice and Science

Hemineglect is a common symptom and sign in patients with right hemisphere lesion. These patients usually have problems of reduced awareness of stimuli from left side. This study aims to evaluate the correlation between presence of hemineglect and functional disability in patients with right hemispheric stroke or traumatic brain injury. Forty patients who were diagnosed as right hemispheric stroke or traumatic brain injury as verified by computed tomography scan or magnetic resonance image participated in the study. Based on the criteria on Schekenberg test (line bisection test), patients were divided into two groups: 20 with hemineglect and 20 without hemineglect. …


The Effect Of Pulmonary Function Training In Chronic Tetraplegic Patients: Pilot Study, Tai-Ann Chen, Yu-Xang Huang, Wai-Keung Lee, Yau-Wai Wai Sep 2003

The Effect Of Pulmonary Function Training In Chronic Tetraplegic Patients: Pilot Study, Tai-Ann Chen, Yu-Xang Huang, Wai-Keung Lee, Yau-Wai Wai

Rehabilitation Practice and Science

Pulmonary complication is the main cause of death in the persons with spinal cord injury (SCI). The purpose of this study was to evaluate if pulmonary function training can improve lung function in chronic (onset more than 1 year) tetraplegic patients. There are 14 subjects (9male and 5 female), including C4 to C7 (11 complete; 3 incomplete), mean duration of injury is 5.14 years. They were arranged the rehabilitation training including respiratory muscle training for 4 weeks. Spirometry records such as vital capacity (VC), tidal volume (TV), inspiratory reserve volume (IRV), expiratory reserve volume (ERV), forced vital capacity (FVC), forced …