836 research outputs found
Amira Saed; Ishag Adam; Salah Eldin G. Elzaki; Hiba A. Awooda; Hamdan Zaki Hamdan :Leptin receptor gene polymorphisms c.668A>G and c.1968G>C in Sudanese women with preeclampsia: a case-control study Data set
No full textLeptin receptor gene polymorphisms c.668A>G and c.1968G>C in Sudanese women with preeclampsia: a case-control stud
Effect of different onlay systems on fracture resistance and failure pattern of endodontically treated mandibular molars restored with and without glass fiber posts
No full textPURPOSE:
To investigate the relationship between post and core build-up materials on the fracture resistance of endodontically treated teeth restored with different onlay restorations.
METHODS:
60 mandibular molars were endodontically treated and divided into three experimental groups that received one of the following onlay restorations: gold onlays, glass ceramic onlays (Empress I), or resin composite onlays (Gradia). Half of the specimens in each group received a fiber post (n=10). Two controls groups (n=10) were included: one group composed of sound mandibular molars, and the second group was composed of endodontically treated unrestored molars. Fracture tests were carried out by applying axial load using a universal loading machine until fracture. All fractured specimens were fractographically examined using a scanning electron microscope (SEM). Data were analyzed using two-way ANOVA and Tukey multiple comparison tests (alpha=0.05).
RESULTS:
Statistical analysis showed that restoration of endodontically treated teeth with gold onlays improved fracture resistance when compared to glass ceramic or resin composite onlays. The presence of a fiber post significantly improved (P<0.045) fracture resistance of gold onlays from 2271 to 2874N while it did not influence the performance of the other two groups. Fractographic analyses revealed that the presence of fiber post resulted in more restorable fractures due to better stress distribution of the applied load. All onlay systems resulted in significant improvement of the fracture resistance compared to unrestored teeth (711N) but neither of them resulted in restoring the fracture resistance to match that of sound teeth (3212 N)
Valutazione del sigillo del pavimento mcamerale ottenuto con cementi vetro-ionomerici e resine composite flowable.
No full textEffect of fasting on laryngopharyngeal reflux disease in male subjects
No full textTo address the effect of fasting on laryngopharyngeal reflux disease (LPRD). A total of 22 male subjects have been recruited for this study. Subjects with vocal fold pathologies, recent history of upper respiratory tract infection or laryngeal manipulation were excluded. Demographic data included age and history of smoking. All subjects were evaluated while fasting for at least 12 h and non-fasting. By non-fasting we mean that they ate and drank during the day at their discretion with no reservation. The abstention from water and or food intake during the non-fasting period extended from few minutes to 3 h. All subjects were evaluated at the same time during the day. The evaluation consisted of a laryngeal examination and the Reflux Symptom Index (RSI). The Reflux Finding Score (RFS) was used to report on the reflux laryngeal findings. Subjects were considered to have LPRD if either the RSI or the RFS were positive (9 RSI,7 RFS). There was a non-significant increase in the total prevalence of LPRD while fasting compared to non-fasting (32 vs. 50 percent while fasting, p value 0.361). In the RSI, the most common symptoms while non-fasting and fasting were throat clearing (64 vs. 68 percent), postnasal drip (45 vs. 59 percent) and globus sensation (36 vs. 50 percent). The average score of all the three increased significantly while fasting. For the RFS the most common laryngeal findings in the non-fasting group versus the fasting group were erythema (77 vs. 68 percent), thick endolaryngeal mucus (77 vs. 77 percent) and posterior commissure hypertrophy (55 vs. 64 percent). Fasting results in a nonsignificant increase in laryngopharyngeal reflux disease. The increase can be hypothetically explained on the change in eating habits and the known alterations in gastric secretions during Ramadan. Fasting subjects must be alert to the effect of LPRD on their throat and voice in particular. © Springer-Verlag 2012.Al-Kaabi Saad, 2004, Indian J Gastroenterol, V23, P35; ASLAM M, 1985, BRIT MED J, V290, P1746; Assadi M, 2011, SINGAP MED J, V52, P263; Belafsky PC, 2002, J VOICE, V16, P274, DOI 10.1016-S0892-1997(02)00097-8; Belafsky PC, 2001, LARYNGOSCOPE, V111, P1313, DOI 10.1097-00005537-200108000-00001; CAMPBELL NRC, 1994, CLIN INVEST MED, V17, P570; DONDERICI O, 1994, SCAND J GASTROENTERO, V29, P603; ELHAZMI MAF, 1987, SAUDI MED J, V8, P171; Emami M, 2006, J RES MED SCI, V11, P170; FABRY P, 1963, BRIT J NUTR, V17, P295, DOI 10.1079-BJN19630032; Gali B M, 2011, Niger J Med, V20, P292; Groome M, 2007, LARYNGOSCOPE, V117, P1424, DOI 10.1097-MLG.0b013e31806865cf; GUMAA KA, 1978, BRIT J NUTR, V40, P573, DOI 10.1079-BJN19780161; Hajek P, 2011, J PUBLIC HLTH OXF; HAKKOU F, 1994, GASTROEN CLIN BIOL, V18, P190; Hamdan AL, 2011, AM J OTOLARYNG, V32, P124, DOI 10.1016-j.amjoto.2009.12.001; Hamdan AL, 2007, J VOICE, V21, P495, DOI 10.1016-j.jvoice.2006.01.009; Inan UU, 2002, J GLAUCOMA, V11, P411, DOI 10.1097-01.IJG.0000030691.08305.FF; Iraki L, 1997, GASTROEN CLIN BIOL, V21, P813; Isabel MI, 1977, AM J CLIN NUTR, V20, P816; John DV, 2003, TXB GASTROENTEROLOGY, P1326; Koufman J, 1996, J VOICE, V10, P215, DOI 10.1016-S0892-1997(96)80001-4; KOUFMAN JA, 1991, LARYNGOSCOPE, V101, P1; LITTLE FB, 1985, ANN OTO RHINOL LARYN, V94, P516; Malik G M, 1996, Diagn Ther Endosc, V2, P219, DOI 10.1155-DTE.2.219; Mosek A, 1999, HEADACHE, V39, P225, DOI 10.1046-j.1526-4610.1999.3903225.x; Nomani M Z A, 2005, East Mediterr Health J, V11, P119; Norouzy A, 2011, J ENDOCRINOL INVEST; Ozkan S, 2009, J INT MED RES, V37, P1988; Oztek Z, 1998, ANN SAUDI MED, V18, P479; Park S, 2010, LARYNGOSCOPE, V120, P1303, DOI 10.1002-lary.20918; Ramadan JM, 2000, SAUDI MED J, V21, P238; Storr M, 2000, DIGEST DIS, V18, P93, DOI 10.1159-000016970; WEINSIER RL, 1971, AM J MED, V50, P233, DOI 10.1016-0002-9343(71)90152-5; Ziaee V., 2006, SMJ Singapore Medical Journal, V47, P4090
The chemical modification of tropical wood polymer composites
No full textWood polymer composites were manufactured from several types of tropical wood species by impregnating the woods with acrylonitrile monomer solution. The physical and mechanical properties of wood polymer composites were then investigated in this study. The vacuum-pressure method was employed to impregnate wood samples with monomer and in situ polymerization. Acrylonitrile reacted and incorporated with wood, which was confirmed through Fourier transform infrared spectroscopy and scanning electron microscopy test analysis. The mechanical properties of wood samples in terms of modulus of elasticity and compressive modulus were found to be improved on acrylonitrile treatment. Besides, the fabricated wood polymer composite samples had lower water absorption and higher surface hardness (Shore D) value as compared to their corresponding raw one. For wood polymer composites, a significant improvement was found in physical and mechanical properties compared to the raw woods.Md. Saiful Islam, Sinin Hamdan, Azman Hassan, Zainal Abidin Talib, and HR Sobu
Influence of endometriosis on assisted reproductive technology outcomes
No full textOBJECTIVE: To investigate the association of endometriosis on assisted reproductive technology (ART) outcomes and to review if surgical treatment of endometriosis before ART affects the outcomes.DATA SOURCES: We searched studies published between 1980 and 2014 on endometriosis and ART outcome. We searched MEDLINE, PubMed, ClinicalTrials.gov, and Cochrane databases and performed a manual search.METHODS OF STUDY SELECTION: A total of 1,346 articles were identified, and 36 studies were eligible to be included for data synthesis. We included published cohort studies and randomized controlled trials.TABULATION, INTEGRATION, AND RESULTS: Compared with women without endometriosis, women with endometriosis undertaking in vitro fertilization and intracytoplasmic sperm injection have a similar live birth rate per woman (odds ratio [OR] 0.94, 95% confidence interval [CI] 0.84-1.06, 13 studies, 12,682 patients, I=35%), a lower clinical pregnancy rate per woman (OR 0.78, 95% CI 0.65-0.94), 24 studies, 20,757 patients, I=66%), a lower mean number of oocyte retrieved per cycle (mean difference -1.98, 95% CI -2.87 to -1.09, 17 studies, 17,593 cycles, I=97%), and a similar miscarriage rate per woman (OR 1.26, 95% CI (0.92-1.70, nine studies, 1,259 patients, I=0%). Women with more severe disease (American Society for Reproductive Medicine III-IV) have a lower live birth rate, clinical pregnancy rate, and mean number of oocytes retrieved when compared with women with no endometriosis.CONCLUSION: Women with and without endometriosis have comparable ART outcomes in terms of live births, whereas those with severe endometriosis have inferior outcomes. There is insufficient evidence to recommend surgery routinely before undergoing ART
Vocal characteristics in patients with thyroiditis
No full textObjective: The aim of the present study was to describe the vocal characteristics of patients with thyroiditis in a clinical setting. Materials and methods: A total of 17 consecutive patients with the diagnosis of thyroiditis presenting to the endocrinology clinic were invited to participate in the study. A group of 29 healthy subjects were used as controls. They underwent acoustic analysis and a perceptual evaluation using the GRABS classification. The mean score of each parameter was computed, and the distribution of severity of each perceptual parameter were listed. Results: There was no significant difference in any of the acoustic parameters between the patients and the controls, and there was no significant difference in the mean score of all the perceptual parameters between the patients and the controls. Even when examining the distribution of the severity of evaluation, there was no significant difference between the patients and the controls, as well. Conclusion: Patients with thyroiditis do not have abnormal perceptual vocal evaluation or acoustic findings compared with controls. © 2012 Elsevier Inc.Belafsky PC, 2002, J VOICE, V16, P274, DOI 10.1016-S0892-1997(02)00097-8; Caroline M, 2012, J VOICE, V26, P262, DOI 10.1016-j.jvoice.2010.11.007; Caturegli P, 2007, CURR OPIN RHEUMATOL, V19, P44, DOI 10.1097-BOR.0b013e3280113d1a; Dedivitis RA, 2007, REV BRAS OTORRINOLAR, V73, P144, DOI 10.1590-S0034-72992007000100028; Gharahbaghian Laleh, 2007, West J Emerg Med, V8, P97; Hamdan AL, 2006, ARCH OTOLARYNGOL, V132, P547, DOI 10.1001-archotol.132.5.547; HARPER MB, 1989, J FAM PRACTICE, V29, P382; Heman-Ackah Yolanda D, 2006, J Voice, V20, P269, DOI 10.1016-j.jvoice.2005.03.010; Hussain M, 2008, ASIAN J SURG, V31, P59, DOI 10.1016-S1015-9584(08)60059-7; LANGEVITZ P, 1983, POSTGRAD MED J, V59, P726; LINDEM MC, 1969, AM J SURG, V118, P829, DOI 10.1016-0002-9610(69)90240-2; LUCAROTTI ME, 1988, BRIT J SURG, V75, P1041, DOI 10.1002-bjs.1800751030; McManus C, 2011, J SURG RES, V170, P52, DOI 10.1016-j.jss.2011.01.037; SAKIYAMA R, 1993, AM FAM PHYSICIAN, V48, P615; Tsudana T, 1991, JAPANESE J SURG, V21, P450; VOLPE R, 1957, Can Med Assoc J, V77, P297; WEETMAN AP, 1994, ENDOCR REV, V15, P788, DOI 10.1210-er.15.6.7880
Prevalence of phonatory symptoms in patients with type 2 diabetes mellitus
No full textTo look at the prevalence of phonatory symptoms in patients with type 2 diabetes mellitus. The correlation between these symptoms with duration of the disease, glycemic control, and neuropathy will be described. A total of 105 consecutive patients diagnosed with type 2 diabetes mellitus by their primary endocrinologist were evaluated. A control group consisting of 33 healthy subjects was recruited for this study. Demographic data included: age, gender, allergy, smoking, duration of the disease, glycemic control, and presence or absence of neuropathy. Subjects were also asked about the presence or absence of the following symptoms: hoarseness, vocal tiring or fatigue, vocal straining, and aphonia or complete loss of voice. Patients were also asked to fill out the Voice Handicap Index 10. The mean age of patients with diabetes was 53.21 + 9.68 years with male-to-female ratio of 2-3. The most common phonatory symptoms were vocal tiring or fatigue and hoarseness (34.3 and 33.3 percent). There was a significant difference in the prevalence of hoarseness and vocal straining (p value 0.045 and 0.015, respectively) compared to controls. There was a significant correlation between glycemic control, neuropathy, and hoarseness (p value 0.030 and 0.001, respectively). Vocal straining and aphonia also correlated significantly with the presence of neuropathy. Close to 16 percent of diabetic patients had a VHI-10 above or equal to 7. Diabetic patients are more likely to have phonatory symptoms compared to controls, namely straining and hoarseness. One out of seven patients with diabetes has reported that phonatory symptoms had a significant impact on their quality of life. The presence of neuropathy and poor glycemic control should alert the treating physician to these vocal complaints. © 2012 Springer-Verlag.Al-Maskari MY, 2011, SAUDI MED J, V32, P1285; Arffa RE, J VOICE; Asad A, 2010, J PAK MED ASSOC, V60, P166; Boden G, 1996, DIABETES CARE, V19, P394, DOI 10.2337-diacare.19.4.394; Campbell NRC, 2011, CAN FAM PHYSICIAN, V57, P997; CDC, 2009, NAT DIAB FACT SHEET; Dabelea D, 1999, DIABETES CARE, V22, P944, DOI 10.2337-diacare.22.6.944; Expert Committee on the Diagnosis and Classification of Diabetes Mellitus, 2003, DIABETES CARE S1, V26, pS5, DOI DOI 10.2337-DIACARE.26.2007.S5; Gat-Yablonski Galia, 2006, Pediatr Endocrinol Rev, V3 Suppl 3, P514; Haffner SM, 1999, DIABETES CARE, V22, P562, DOI 10.2337-diacare.22.4.562; Holmkvist J, 2008, DIABETES, V57, P1738, DOI 10.2337-db06-1464; Ijzerman TH, 2011, MUSCLE NERVE, V44, P241, DOI 10.1002-mus.22039; Jackbson BH, 1997, AM J SPEECH-LANG PAT, V6, P66; Krishnan JA, 2010, DIABETES MED, V27, P977; Lewko J, 2007, Adv Med Sci, V52 Suppl 1, P144; National Eye Institute, 2009, DIAB EYE DIS FAQ PRE; National Institute of Diabetes and Digestive and Kidney Diseases, 2007, NAT DIAB STAT 2007; Perkins BA, 2010, DIABETIC MED, V27, P1271, DOI 10.1111-j.1464-5491.2010.03110.x; Rosen CA, 2004, LARYNGOSCOPE, V114, P1549, DOI 10.1097-00005537-200409000-00009; Sataloff RT, 1998, VOCAL HLTH PEDAGOGY, P97; Schunk M, 2011, DIABETIC MED, DOI [10.1111-j.1464-5491.2011.03465.x, DOI 10.1111-J.1464-5491.2011.03465.X.[]; Soe K, 2011, MATURITAS, V70, P151, DOI 10.1016-j.maturitas.2011.07.006; Stern MP, 1996, ANN INTERN MED, V124, P110; Van Acker K, 2009, DIABETES METAB, V35, P206, DOI 10.1016-j.diabet.2008.11.004; van Sloten TT, 2011, DIABETES RES CLIN PR, V91, P32, DOI 10.1016-j.diabres.2010.09.030; Welham NV, 2003, J VOICE, V17, P21, DOI 10.1016-S0892-1997(03)00033; Barba C, 2004, LANCET, V363, P157; Yarbrough DE, 1998, DIABETES CARE, V21, P1652, DOI 10.2337-diacare.21.10.16520
Questionnaires results for data consolidation on occupational safety and health management system among gas contractor in peninsular Malaysia
No full textThere is a need to develop an Occupational Safety and Health Management System (OSHMS) Critical Success Factors (CSF) Monitoring among gas contractor in Malaysia. Critical Success Factors (CSF) can be used for future implementation, adaptation and practice for gas contractor work for both by clients and contractors in Malaysia. The main purpose of CSF implementation is to reduce the number of accident related with Occupational Safety and Health (OSH). The need for CSF is due to the requirement by law and standard that require companies to establish an arrangement related to the identified OSH risks. The objective of this study is to assess the established of OSHMS among gas contractor in Peninsular Malaysia and to identify the CSF imposed by these industries. A cross sectional study for eighty gas contractor companies using established questionnaire has been done. All data consolidated in order to determine the OSHMS and it CSF among gas contractor in Peninsular Malaysia that has registered with Department of Occupational Safety and Health. Established questionnaire are based on OSHMS MS 1722:2011 elements requirement No 1: Policy, No 2: Organizing, No 3: Planning and Implementation, No 4: Evaluation and No 5: Action for Improvement as parameters to come out with organization means and Z-scores. Descriptive statistic showed that element mean (standard deviation) score for policy is 75(6.6), for Organizing is 63(5.2), for Planning and Implementation is 59(9.4), for Evaluation is 66(5.1) and Action for Improvement is 63(1.3). Percentage of company that complies with the main element for Policy is 15%, for Organizing is 8.8%, for Planning and Implementation is 11.3%, for evaluation is 11.3% and for Action for improvement is 13.8%. Percentage of companies that partially comply with Policy element is distributed between 61.0% to 85.0% which is 76.3 %, for Organizing score is mainly distributed between 46.0% to 60.0% which is 62.5%, for planning and Implementation score for 80 companies distributed mainly in group score between 46.0 to 60.0% which is 56.3 %, for Evaluation the partially comply score is distributed in group score between 61.0% to 85.5% which is 41 % and for Action for Improvement partially comply score, the distribution is mainly distribute in range of 61.0% to 85.0% which is 62.5 %. Z-score for element policy is five points from policy mean, for organizing Z-score is three points from Organizing mean, for Planning and Implementation the Z-score is three points from Planning and Implementation mean, for Evaluation the Z-score is three points from evaluation mean and for Action for improvement Z-score is two to three points from Action for Improvement mean. Percentage of compliance with OSHMS MS 1722:2011 elements by gas contractors in almost main element and sub element are still low and can be further improved by focusing on all company element score for continual improvement of OSH elements compliances
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