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2011

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Articles 1531 - 1560 of 6767

Full-Text Articles in Medicine and Health Sciences

Use Of Optimal Control Models To Predict Treatment Time For Managing Tick-Borne Disease, Holly D. Gaff, Elsa Schaefer, Suzanne Lenhart Sep 2011

Use Of Optimal Control Models To Predict Treatment Time For Managing Tick-Borne Disease, Holly D. Gaff, Elsa Schaefer, Suzanne Lenhart

Biological Sciences Faculty Publications

Tick-borne diseases have been on the rise recently, and correspondingly, there is an increased interest in implementing control measures to decrease the risk. Optimal control provides an ideal tool to identify the best method for reducing risk while accounting for the associated costs. Using a previously published model, a variety of frameworks are assessed to identify the key factors influencing mitigation strategies. The level and duration of tick-reducing efforts are key metrics for understanding the successful reduction in tick-borne disease incidence. The results show that the punctuated nature of the tick's life history plays a critical role in reducing risk …


The 2007 Rift Valley Fever Outbreak In Sudan, Osama Ahmed Hassan, Clas Ahlm, Rosemary Sang, Magnus Evander Sep 2011

The 2007 Rift Valley Fever Outbreak In Sudan, Osama Ahmed Hassan, Clas Ahlm, Rosemary Sang, Magnus Evander

All Peer-Reviewed Publications

Rift Valley fever (RVF) is a neglected, emerging, mosquito-borne disease with severe negative impact on human and animal health and economy. RVF is caused by RVF virus (RVFV) affecting humans and a wide range of animals. The virus is transmitted through bites from mosquitoes and exposure to viremic blood, body fluids, or tissues of infected animals. During 2007 a large RVF outbreak occurred in Sudan with a total of 747 confirmed human cases including 230 deaths (case fatality 30.8%); although it has been estimated 75,000 were infected. It was most severe in White Nile, El Gezira, and Sennar states near …


A Non-Randomized, Observational Trial Of Short-Term Pre-Operative Endocrine Therapy In Er Positive Breast Cancer To Investigate Changes In Genomic Expression Using The Oncotype Dx® Recurrence Score®, Aaron D. Bleznak Md, Facs, Elizabeth A. Dellers Md, B G. Porter, Sharon R. Kimmel Phd, Mha, Heiwon Chung Md, Facs, Carl N. Yoshizawa, Emily Burke, D S. Davison, Calvin Chao Sep 2011

A Non-Randomized, Observational Trial Of Short-Term Pre-Operative Endocrine Therapy In Er Positive Breast Cancer To Investigate Changes In Genomic Expression Using The Oncotype Dx® Recurrence Score®, Aaron D. Bleznak Md, Facs, Elizabeth A. Dellers Md, B G. Porter, Sharon R. Kimmel Phd, Mha, Heiwon Chung Md, Facs, Carl N. Yoshizawa, Emily Burke, D S. Davison, Calvin Chao

Department of Pathology & Laboratory Medicine

No abstract provided.


A Single Phenylalanine Residue In The Main Intracellular Loop Of Α1 Γ-Aminobutyric Acid Type A And Glycine Receptors Influences Their Sensitivity To Propofol, Gustavo Moraga-Cid, Gonzalo E. Yevenes, Günther Schmalzing, Robert W. Peoples, Luis G. Aguayo Sep 2011

A Single Phenylalanine Residue In The Main Intracellular Loop Of Α1 Γ-Aminobutyric Acid Type A And Glycine Receptors Influences Their Sensitivity To Propofol, Gustavo Moraga-Cid, Gonzalo E. Yevenes, Günther Schmalzing, Robert W. Peoples, Luis G. Aguayo

Biomedical Sciences Faculty Research and Publications

Background: The intravenous anesthetic propofol acts as a positive allosteric modulator of glycine (GlyRs) and γ-aminobutyric acid type A (GABAARs) receptors. Although the role of transmembrane residues is recognized, little is known about the involvement of other regions in the modulatory effects of propofol. Therefore, the influence of the large intracellular loop in propofol sensitivity of both receptors was explored. Methods: The large intracellular loop of α1 GlyRs and α1β2 GABAARs was screened using alanine replacement. Sensitivity to propofol was studied using patch-clamp recording in HEK293 cells transiently transfected with …


Virtual Reality Gaming As A Tool For Rehabilitation In Physical Therapy, Abel A. Rendon Sep 2011

Virtual Reality Gaming As A Tool For Rehabilitation In Physical Therapy, Abel A. Rendon

Loma Linda University Electronic Theses, Dissertations & Projects

Balance control decreases in the elderly and currently 33 to 50 percent of people over 65 years of age experience a fall each year resulting in ten thousand deaths annually. Many balance‐training programs use expensive equipment and a clinical setting for the training. The need for reliable and low cost tools is essential for fall prevention and rehabilitation of the aging population. Virtual reality gaming is emerging as a solution for this problem. The purpose of the six week study was to determine the effects of virtual reality gaming, specifically the Nintendo Wii Fit Balance Board (WBB), on dynamic balance …


Investigation Of The Relationship Between Endometrial Mmp Activities And Sex Hormones In Mature Bitches, Wei-Yau Shia, Po-Chen Chu, Chih-Chung Chou, Wei-Ming Lee Sep 2011

Investigation Of The Relationship Between Endometrial Mmp Activities And Sex Hormones In Mature Bitches, Wei-Yau Shia, Po-Chen Chu, Chih-Chung Chou, Wei-Ming Lee

The Thai Journal of Veterinary Medicine

Endometrial matrix metalloproteinases (MMPs) are extensively studied in humans. However, owing to thedistinct differences of the estrous cycle of bitches, the expression and activities of endometrial MMPs regulated by sexhormones should be significantly different. To understand the effect of sex hormones on the activity of MMPs, thisstudy investigates the activities of endometrial MMP-2 and MMP-9 during different phases of the estrous cycle inbitches through the use of gelatine zymography. Estradiol and progesterone concentrations were also determinedusing enzyme-linked fluorescent assay. The activities of the latent forms of both MMP-2 and -9 were significantlyhigher in metestrus (MP) and late diestrus phases (L-DP) …


Differences Of Periods Of Calving On Days Open Of Dairy Cows In Different Regions And Months Of Thailand, Winai Kaewlamun, Rut Chayaratanasin, Prachin Virakul, Andrew A. Ponter, Patrice Humblot, Siriwat Suadsong, Padet Tummaruk, Mongkol Techakumphu Sep 2011

Differences Of Periods Of Calving On Days Open Of Dairy Cows In Different Regions And Months Of Thailand, Winai Kaewlamun, Rut Chayaratanasin, Prachin Virakul, Andrew A. Ponter, Patrice Humblot, Siriwat Suadsong, Padet Tummaruk, Mongkol Techakumphu

The Thai Journal of Veterinary Medicine

The objectives of this study were to analyze the potential impact of heat stress on reproduction in differentregions of Thailand, to determine the monthly distribution of calving throughout the year and to investigateenvironmental sources of variation of days-open (DO) in first lactation dairy cows. Data including 13,548 lactationrecords were collected during 2004 to 2006. Climate data were obtained from the provincial meteorological stationsand the corresponding temperature-humidity indexes were calculated. The difference between regions in THI wasdetermined. The geographical regions studied were: Central, Eastern, Northeastern, and Northern. The distributionof calving by month was determined in the 1st to 5th lactation. The …


Hyaluronan And Syndecan-1 Localization In The Swamp Buffalo Oviduct, Paisan Tienthai Sep 2011

Hyaluronan And Syndecan-1 Localization In The Swamp Buffalo Oviduct, Paisan Tienthai

The Thai Journal of Veterinary Medicine

The glycosaminoglycans (GAGs) found in the mammalian oviductal tissue and luminal secretory fluidinfluence the fertilization processes in various patterns such as sperm storage, viability and capacitation. The aim ofthis study was to confirm the appearance of hyaluronan and syndecan-1 in the swamp buffalo oviduct consisting ofuterotubal junction (UTJ), isthmus, ampulla and infundibulum during oestrous cycle using histochemical andimmunohistochemical techniques. The non-sulphated GAGs, i.e. hyaluronan (HA), were noticeably localized in thesubepithelial connective tissue layer or lamina propria of all segments while the epithelial HA-positive staining wasdemonstrated only in the UTJ and isthmus (sperm reservoir) at the follicular phase. In contrast, the …


Effect Of Equex Stm Paste On The Quality And Motility Characteristics Of Post Thawed Cryopreserved Goat Semen, Nitira Anakkul, Junpen Suwimonteerabutr, Jinda Singlor, Nawapen Phutikanit, Theerawat Tharasanit, Mongkol Techakumphu Sep 2011

Effect Of Equex Stm Paste On The Quality And Motility Characteristics Of Post Thawed Cryopreserved Goat Semen, Nitira Anakkul, Junpen Suwimonteerabutr, Jinda Singlor, Nawapen Phutikanit, Theerawat Tharasanit, Mongkol Techakumphu

The Thai Journal of Veterinary Medicine

The aim of this study was to evaluate the effect of Equex STM Paste on goat semen quality aftercryopreservation. Semen samples were consecutively collected once a week, from six mature bucks. The semensamples with adequate motility (>60%) and sperm concentration (>1,500x106 sperm/ml) were frozen in an egg yolk-Tris semen extender supplemented either with (E+) or without (E-) Equex STM Paste. The semen quality includingmotility, viability, morphology, acrosome integrity and membrane functional integrity were evaluated beforeprocessing and after cryopreservation. Computer-assisted-semen analysis (CASA) was used to characterize the spermmotion patterns during the thermal resistance test at 0, 1, 2 and …


Seroprevalence And Risk Factors Associated With Caprine Arthritis-Encephalitis Virus Infection In Goats In The Western Part Of Thailand, Thant Nyi Lin, Saroch Ngarmkum, Kanisak Oraveerakul, Prachin Virakul, Mongkol Techakumphu Sep 2011

Seroprevalence And Risk Factors Associated With Caprine Arthritis-Encephalitis Virus Infection In Goats In The Western Part Of Thailand, Thant Nyi Lin, Saroch Ngarmkum, Kanisak Oraveerakul, Prachin Virakul, Mongkol Techakumphu

The Thai Journal of Veterinary Medicine

To determine the seroprevalence of caprine arthritis-encephalitis virus infection (CAEV) in goats in theWestern part of Thailand, a cross-sectional serological survey was conducted in three provinces, Ratchaburi,Petchaburi and Kanchanaburi, situated in the western part of the country along the border area. A total of 1,129serum samples from 74 randomly selected goat farms containing different breeds of goats were collected during theperiod from November 2009 to January 2011. Seroprevalence of CAEV antibodies was determined using competitiveenzyme-linked immunosorbent assay (cELISA) test. To investigate the risk factors associated with the seroprevalenceof CAEV antibodies, semi-structural questionnaires were developed and presented to farm owners to …


Influenza A Virus Receptor Identification In The Respiratory Tract Of Quail, Pig, Cow And Swamp Buffalo, Aunyarattana Thontiravong, Tilladit Rung-Ruangkijkrai, Pravina Kitikoon, Kanisak Oraveerakul, Yong Poovorawan Sep 2011

Influenza A Virus Receptor Identification In The Respiratory Tract Of Quail, Pig, Cow And Swamp Buffalo, Aunyarattana Thontiravong, Tilladit Rung-Ruangkijkrai, Pravina Kitikoon, Kanisak Oraveerakul, Yong Poovorawan

The Thai Journal of Veterinary Medicine

Virus infection requires the interaction of a virus protein with the host-cell receptor. The Influenza A virusreceptor consists of sialic acid linked to the galactose unit in a α 2,3 or α 2,6 conformation. Various types of thesereceptors are expressed differently on the epithelial lining of various animal species. Here we characterized the typesof receptors that are expressed in the upper and lower respiratory tracts of cow, buffalo, pig and quail. Our findingsdemonstrate that SA α 2,6-gal linked receptors for human influenza viruses are present in the lower respiratory tractof cow and buffalo, while the SA α 2,3-gal linked receptors …


Survey Of Enterococcus Faecalis In Diseased Swine In Hunan Province, China, Wei Jiang, Shi-Cheng Tian, Run-Cheng Li, Yun-Qiu Yan, Ying-Zi Wang, Man-Xiang Li Sep 2011

Survey Of Enterococcus Faecalis In Diseased Swine In Hunan Province, China, Wei Jiang, Shi-Cheng Tian, Run-Cheng Li, Yun-Qiu Yan, Ying-Zi Wang, Man-Xiang Li

The Thai Journal of Veterinary Medicine

The prevalence of Enterococcus faecalis was investigated in diseased swine in Hunan Province, China betweenFebruary 2007 and February 2011. A total of 385 diseased swine dissected in prosectorium from 10 representativeadministrative regions in Hunan Province were examined for the presence of E. faecalis. Forty-two out of 385 (10.91%)diseased swine were found to be infected with E. faecalis by bacteria isolations. E. faecalis was mainly recovered fromthe lung and joint cavity. Identification of the organisms was based on biochemical assays and sequencing of thepartial 16S rRNA. The results of the present investigation have implications for the ongoing control of E. faecalisinfections …


Ecg Quiz, Chollada Buranakarl Sep 2011

Ecg Quiz, Chollada Buranakarl

The Thai Journal of Veterinary Medicine

No abstract provided.


Ophthalmology Snapshot, Nalinee Tuntivanich Sep 2011

Ophthalmology Snapshot, Nalinee Tuntivanich

The Thai Journal of Veterinary Medicine

No abstract provided.


What Is Your Diagnosis, Pranee Tuntivanich, Suwicha Chuthatep Sep 2011

What Is Your Diagnosis, Pranee Tuntivanich, Suwicha Chuthatep

The Thai Journal of Veterinary Medicine

No abstract provided.


Pulmonary Talcosis 10 Years After Brief Teenage Exposure To Cosmetic Talcum Powder., Amarah Shakoor, Arsalan Rahatullah, Adil Aijaz Shah, Ali Bin Sarwar Zubairi Sep 2011

Pulmonary Talcosis 10 Years After Brief Teenage Exposure To Cosmetic Talcum Powder., Amarah Shakoor, Arsalan Rahatullah, Adil Aijaz Shah, Ali Bin Sarwar Zubairi

Department of Medicine

Pulmonary talcosis is a rare but debilitating variant of pneumoconiosis often presenting with isolated non-specific symptoms of progressive exertional dyspnoea or cough. Occupational exposure to talc dust and intravenous drug abuse are well-recognised aetiological factors with only a few cases related to cosmetic talc exposure being reported to date. The authors report a case of a young woman in whom a mere 4 month ritual of inhaling cosmetic talcum powder led to full-blown pulmonary talcosis being diagnosed 10 years later. The importance of a taking a pertinent history relating to environmental exposures in all patients presenting with respiratory symptoms is …


White Coat Hypertension Is Not A Benign Entity: A Cross-Sectional Study At A Tertiary Care Hospital In Pakistan, Saniya Siraj Godil, Halima Tabani, Aamir Hameed Khan, Aysha Almas Sep 2011

White Coat Hypertension Is Not A Benign Entity: A Cross-Sectional Study At A Tertiary Care Hospital In Pakistan, Saniya Siraj Godil, Halima Tabani, Aamir Hameed Khan, Aysha Almas

Department of Medicine

Objectives: To determine the frequency of White Coat Hypertension in patients undergoing ambulatory blood pressure monitoring at a tertiary care center and to compare ambulatory blood pressure profiles of normotensives, white coat hypertensives and hypertensives.
Methods: A descriptive cross-sectional study was conducted which included all adult patients undergoing ambulatory blood pressure monitoring over a 3-year period. Those patients with incomplete data, less than 85% successful BP readings and inadequate number of daytime and nighttime readings were excluded from the study. The data on ambulatory blood pressure monitoring comprised of demographics, blood pressure, pulse pressure and mean arterial pressure readings at …


Choosing Radial Vs. Femoral Cardiac Catheterization: Does Operator Seniority Matter? A Single Center Experience, Nitin Verma Md, Amit N. Nanavati Md, Justin D. Roberts Do, Nainesh C. Patel Md Sep 2011

Choosing Radial Vs. Femoral Cardiac Catheterization: Does Operator Seniority Matter? A Single Center Experience, Nitin Verma Md, Amit N. Nanavati Md, Justin D. Roberts Do, Nainesh C. Patel Md

Department of Medicine

No abstract provided.


Setting Research Priorities To Reduce Global Mortality From Childhood Pneumonia By 2015, Igor Rudan, Shams El Arifeen, Zulfiqar Ahmed Bhutta, Robert E. Black, Abdullah Brooks, Kit Yee Chan, Mickey Chopra, Trevor Duke, David Marsh, Antonio Pio, Eric A. F. Simoes, Giorgio Tamburlini, Evropi Theodoratou, Martin W. Weber, Cynthia G. Whitney, Harry Campbell, Shamim A. Qazi Sep 2011

Setting Research Priorities To Reduce Global Mortality From Childhood Pneumonia By 2015, Igor Rudan, Shams El Arifeen, Zulfiqar Ahmed Bhutta, Robert E. Black, Abdullah Brooks, Kit Yee Chan, Mickey Chopra, Trevor Duke, David Marsh, Antonio Pio, Eric A. F. Simoes, Giorgio Tamburlini, Evropi Theodoratou, Martin W. Weber, Cynthia G. Whitney, Harry Campbell, Shamim A. Qazi

Department of Paediatrics and Child Health

No abstract provided.


Association Between Caries, Obesity And Insulin Resistance In Mexican Adolescents, Juan Pablo Loyola-Rodgriguez, Carlos Villa-Chavez, Nuria Patiño-Marin, Celia Aradillas-Garcia, Cesar D. Gonzalez, Esperanza De La Cruz-Mendoza Sep 2011

Association Between Caries, Obesity And Insulin Resistance In Mexican Adolescents, Juan Pablo Loyola-Rodgriguez, Carlos Villa-Chavez, Nuria Patiño-Marin, Celia Aradillas-Garcia, Cesar D. Gonzalez, Esperanza De La Cruz-Mendoza

School of Dentistry Faculty Research and Publications

Aim: To determine the association among dental caries, obesity and insulin resistance in Mexican adolescents. Methods: Body Mass Index, obesity (OB) blood pressure, insulin level, insulin resistance (IR), triglycerides level, serum HDL-cholesterol (cHDL), DMFT index and salivary flow were measured. Results: Anthropometric measures showed a significant statistical difference (p < 0.05). Insulin level was 8.98 for healthy subjects, whereas for OB-IR group was 25.35, there was a statistical significant difference (p < 0.05). Triglycerides level was 88.50 for healthy subjects and 169.40 mg/dL for OB-IR; cHDL was 52.88 for healthy and 41.82 mg/dL for OB-IR group, both showed a statistically significant difference (p < 0.05). Salivary flow was 4.30 for healthy and for OB-IR group was 5.48 ml/min showed a significant statistical difference (p < 0.05). DMFT index was 3.02 for healthy and for OB-IR adolescents was 4.78, showed a significant statistical difference (p < 0.05). The caries component of DMFT index was 1.84 for healthy and was 3.52 for OB-IR adolescents, showed a significant statistical difference (p < 0.05). According to the multivariate analysis, DMFT (OR=3.10; IC95%=0.20-1.02, p=0.042) and decay (OR=3.30; IC95%=0.19-1.0, p=0.011) were associated with subjects with OB-IR. Conclusion: OB-IR Mexican adolescents showed a positive association with DMFT.


Identification Of A Mechanism For Increased Cardiovascular Risk Among Individuals With Low Vitamin D Concentrations., Peter F Schnatz, Matthew Nudy, David M O'Sullivan, Kelly Ethun, Susan E Appt, Thomas B Clarkson Sep 2011

Identification Of A Mechanism For Increased Cardiovascular Risk Among Individuals With Low Vitamin D Concentrations., Peter F Schnatz, Matthew Nudy, David M O'Sullivan, Kelly Ethun, Susan E Appt, Thomas B Clarkson

Department of Obstetrics and Gynecology Faculty Papers

OBJECTIVE: The aim of this study was to investigate the plasma concentrations of vitamin D and its association with plasma lipid profiles.

METHODS: Plasma vitamin D3 and lipid concentrations were measured in 119 female cynomolgus monkeys (premenopausal, n = 49; ovariectomized, n = 70) consuming approximately 1,000 IU per day of vitamin D3. In a subset of the ovariectomized monkeys (n = 23), vitamin D3 was remeasured after 6 months. The concentrations of vitamin D3 were analyzed as a continuous variable and were divided at the median into high (≥48 ng/mL) versus low (<48 ng>/mL) groupings.

RESULTS: Among the 119 …


Hamstring Injuries In Professional Football Players: Magnetic Resonance Imaging Correlation With Return To Play., Steven B Cohen, Jeffrey D Towers, Adam Zoga, Jay J Irrgang, Junaid Makda, Peter F Deluca, James P Bradley Sep 2011

Hamstring Injuries In Professional Football Players: Magnetic Resonance Imaging Correlation With Return To Play., Steven B Cohen, Jeffrey D Towers, Adam Zoga, Jay J Irrgang, Junaid Makda, Peter F Deluca, James P Bradley

Rothman Institute Papers

BACKGROUND: Magnetic resonance imaging (MRI) allows for detailed evaluation of hamstring injuries; however, there is no classification that allows prediction of return to play.

PURPOSE: To correlate time for return to play in professional football players with MRI findings after acute hamstring strains and to create an MRI scoring scale predictive of return to sports.

STUDY DESIGN: Descriptive epidemiologic study.

METHODS: Thirty-eight professional football players (43 cases) sustained acute hamstring strains with MRI evaluation. Records were retrospectively reviewed, and MRIs were evaluated by 2 musculoskeletal radiologists, graded with a traditional radiologic grade, and scored with a new MRI score. Results …


Presence Of Rd149 Deletions In M. Tuberculosis Central Asian Strain 1 Isolates Affect Growth And Tnfalpha Induction In Thp-1 Monocytes., Akber Kanji, Zahra Hasan, Mehnaz Tanveer, Raunaq Mahboob, Sana Jafri, Rumina Hasan Aug 2011

Presence Of Rd149 Deletions In M. Tuberculosis Central Asian Strain 1 Isolates Affect Growth And Tnfalpha Induction In Thp-1 Monocytes., Akber Kanji, Zahra Hasan, Mehnaz Tanveer, Raunaq Mahboob, Sana Jafri, Rumina Hasan

Department of Pathology and Laboratory Medicine

Central Asian Strain 1 (CAS1) is the prevalent Mycobacterium tuberculosis genogroup in South Asia. CAS1 strains carry deletions in RD149 and RD152 regions. Significance of these deletions is as yet unknown. We compared CAS1 strains with RD149 and concurrent RD149-RD152 deletions with CAS1 strains without deletions and with the laboratory reference strain, M. tuberculosis H37Rv for growth and for induction of TNFα, IL6, CCL2 and IL10 in THP-1 cells. Growth of CAS1 strains with deletions was slower in broth (RD149; p = 0.024 and RD149-RD152; p = 0.025) than that of strains without deletions. CAS1 strains with RD149 deletion strains …


Characterization Of Vibrio Cholerae O1 El Tor Biotype Variant Clinical Isolates From Bangladesh And Haiti, Including A Molecular Genetic Analysis Of Virulence Genes, Mike S. Son, Christina J. Megli, Gabriela Kovacikova, Firdausi Qadri, Ronald K. Taylor Aug 2011

Characterization Of Vibrio Cholerae O1 El Tor Biotype Variant Clinical Isolates From Bangladesh And Haiti, Including A Molecular Genetic Analysis Of Virulence Genes, Mike S. Son, Christina J. Megli, Gabriela Kovacikova, Firdausi Qadri, Ronald K. Taylor

Dartmouth Scholarship

Vibrio cholerae serogroup O1, the causative agent of the diarrheal disease cholera, is divided into two biotypes: classical and El Tor. Both biotypes produce the major virulence factors toxin-coregulated pilus (TCP) and cholera toxin (CT). Although possessing genotypic and phenotypic differences, El Tor biotype strains displaying classical biotype traits have been reported and subsequently were dubbed El Tor variants. Of particular interest are reports of El Tor variants that produce various levels of CT, including levels typical of classical biotype strains. Here, we report the characterization of 10 clinical isolates from the International Centre for Diarrhoeal Disease Research, Bangladesh, and …


La Sécurité Des Têtes D'Abattage Multifonctionnelles, Laurent Giraud, Nicolas Gagné, Daoud Ait-Kadi, Priscille Hastey, Marina Koutchouk, Sébastien Tanchoux, Steve Vezeau Aug 2011

La Sécurité Des Têtes D'Abattage Multifonctionnelles, Laurent Giraud, Nicolas Gagné, Daoud Ait-Kadi, Priscille Hastey, Marina Koutchouk, Sébastien Tanchoux, Steve Vezeau

Rapports de recherche scientifique

Les abatteuses forestières sont des véhicules tout-terrains conçus pour travailler en forêt, qui servent de véhicule moteur pour déplacer une tête d’abattage groupeuse ou une tête d’abattage multifonctionnelle. L’utilisation d’abatteuses avec une tête d’abattage multifonctionnelle s’est largement répandue au Québec ces dernières années, pour de nombreuses raisons dont :

  • La réduction de la superficie des sentiers de débardage;
  • L’élimination des aires d’ébranchage en bordure de route;
  • La réduction de la diversité des machines, car une seule machine tronçonne et façonne les arbres en billots, là où il en fallait plusieurs avec les anciennes méthodes;
  • La réduction de la dégradation des …


Percobaan Sintesis 4-(4-Metoksibenzilidena) 2-Metiloksazol-5-On Dari Asetilglisin Dan 4-Metoksibenzaldehid, Arif Arrahman, Hayun Hayun, Arry Yanuar Aug 2011

Percobaan Sintesis 4-(4-Metoksibenzilidena) 2-Metiloksazol-5-On Dari Asetilglisin Dan 4-Metoksibenzaldehid, Arif Arrahman, Hayun Hayun, Arry Yanuar

Majalah Ilmu Kefarmasian

Compound 4-(4-methoxybenzylidene)-2-methyloxazole-5-one was one of oxazolone moety derivative. Oxazolones had several different pharmacological activity depend on substituent which was bonded to oxazolone ring. Oxazolones was an important precursor for synthesizing several compounds which had pharmacological activity. For that reason, experiment to synthesize 4-(4-methoxybenzylidene)-2-methyloxazole-5-one from acetyl- glicine and 4-methoxybenzaldehyde as an oxazolone derivative become necessary. Com- pound 4-(4-methoxybenzylidene)-2-methyloxazole-5-one was synthesized over two step of reaction. First step was reacted glycine with acetic anhydride in acidic environment yielded acetylglycine. Second step was reacted acetylglycine with 4-methoxybenzaldehyde yielded 4-(4-methoxybenzylidene)-2-methyloxazole-5-one. The product, which was collected in every step, was purified by washing and recrystalization …


Efek Nefroprotektif Infus Daun Sukun (Artocarpus Altilis (Park.) Fsb.) Pada Tikus Jantan Yang Diinduksi Karbon Tetraklorida, Rianti Adi Cahyaningsih, Azizahwati Azizahwati, Dadang Kusmana Aug 2011

Efek Nefroprotektif Infus Daun Sukun (Artocarpus Altilis (Park.) Fsb.) Pada Tikus Jantan Yang Diinduksi Karbon Tetraklorida, Rianti Adi Cahyaningsih, Azizahwati Azizahwati, Dadang Kusmana

Majalah Ilmu Kefarmasian

Renal dysfunction can be caused by several factors, including hypertension, urinary tract obstruction, autoimmune disorders, urinary tract infection, diabetes mellitus, consumption of drugs that affect nephrotoxic and antibiotic from aminoglycoside class. Breadfruit leaves (Artocarpus altilis (Park.) Fsb.) is a traditional plant that hasbeen used empirically to treat kidney diseases. The research has been done to figure out the nephroprotective effect of breadfruit leaves infusion on white male rats strain Sprague-Dawley previously induced by carbon tetrachloride. There were 25 rats which were divided randomly into five groups. Group I which was the normal control group received CMC 0,5%. Group II which …


Uji Penghambatan Tirosinase Dan Stabilitas Fisik Sediaan Krim Pemutih Yang Mengandung Ekstrak Kulit Batang Nangka (Artocarpus Heterophyllus), Ninin Kartika Juwita, Joshita Djajadisastra, Azizahwati Azizahwati Aug 2011

Uji Penghambatan Tirosinase Dan Stabilitas Fisik Sediaan Krim Pemutih Yang Mengandung Ekstrak Kulit Batang Nangka (Artocarpus Heterophyllus), Ninin Kartika Juwita, Joshita Djajadisastra, Azizahwati Azizahwati

Majalah Ilmu Kefarmasian

The cortex of jackfruit (Artocarpus heterophyllus) contains some flavonoids which have activity as tyrosinase inhibitors. This compound can inhibit the oxidation of l-tyrosine and levodopa in the mechanism of melanogenesis. The extract of jackfruit cortex formulated into creams differentiated by the extract concentration of 1,5% and 2,0%. Physical stability test was conducted with storing the creams at three different temperatures, 7 ± 2°, 27 ± 2°, and 40±2°C respectively. Centrifugal tests and cycling test was also performed on both cream. Tyrosinase inhibitory activity measurement was done by in vitro studies with measuring dopachrome. The result showed that both of formulations …


Formulasi Sediaan Granul Mukoadhesif Kombinasi Ekstrak Kulit Batang Mimba (Azadirachta Indica A. Juss) Dan Kunyit (Curcuma Domestica Val.), Sutriyo Sutriyo, Khairunnisya Khairunnisya, Abdul Mun’Im Aug 2011

Formulasi Sediaan Granul Mukoadhesif Kombinasi Ekstrak Kulit Batang Mimba (Azadirachta Indica A. Juss) Dan Kunyit (Curcuma Domestica Val.), Sutriyo Sutriyo, Khairunnisya Khairunnisya, Abdul Mun’Im

Majalah Ilmu Kefarmasian

Neem bark (Azadirachta indica A.Juss) and turmeric (Curcuma domestica Val.) extracts have been found posses gastroprotective effect so that they are used in the treatment of gastric ulcer. Administration of combination of both extracts can give synergistic effect so that the administration dose can be reduced. In this research, combination of neem bark and turmeric extracts were formulated as mucoadhesive granules to improve their effectivenesses by increasing the residence time of dosage form in the stomach. Mucoadhesive granules were prepared by wet granulation method in six formulas using HPMC, Carbopol, and combination of HPMC and Carbopol as mucoadhesive polymers. Granules …


Analisis Kandungan Ion Fluorida Pada Sampel Air Tanah Dan Air Pam Secara Spektrofotometri, Yodifta Astriningrum, Herman Suryadi Aug 2011

Analisis Kandungan Ion Fluorida Pada Sampel Air Tanah Dan Air Pam Secara Spektrofotometri, Yodifta Astriningrum, Herman Suryadi

Majalah Ilmu Kefarmasian

Fluoride ion is one of the compounds that are known to have benefits in the prevention of dental caries when used in certain concentrations, but also hasnegative effects that may cause the occurrence of dental and bone fluorosis when the intake was in excessive concentration. One of the fluoride intakes comes fromwater that is consumed. The aim of this research was to identify and measurefluoride ion levels in groundwater and piped water that used as drinking water consumption in the community. Measurement of fluoride ion concentration isdone by using visible spectrophotometry at the maximum wavelength of 586 nm using the …