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Benefit of whole-pelvis radiation for patients with muscle-invasive bladder cancer: An inverse probability treatment weighted analysis. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01335-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Natural history of subclinical hypothyroidism and prognostic factors for the development of overt hypothyroidism: Tehran Thyroid Study (TTS). J Endocrinol Invest 2022; 45:2353-2364. [PMID: 35925467 DOI: 10.1007/s40618-022-01876-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 07/19/2022] [Indexed: 10/16/2022]
Abstract
OBJECTIVE The significance of subclinical hypothyroidism (SCH) is largely due to its potential risk for developing overt hypothyroidism (OH). Investigations are still exploring predictive factors contributing to the progression of SCH to OH, particularly in patients with mildly elevated serum thyrotropin (TSH). We aimed to clarify the natural history of SCH and the predictive factors of its progression, based on the grade of SCH severity. METHODS This study was conducted within the framework of the Tehran Thyroid Study (TTS), in which 5783 individuals aged ≥ 20 years were followed. After applying exclusion criteria, data of 270 SCH subjects remained for the analysis. Thyroid function tests were assessed at baseline and every 3 years. RESULTS Of 270 participants with SCH, 239 (88.5%) had TSH level between 5.06 and 10 mU/L, and 31 (11.4%) had TSH ≥ 10 mU/L. During a median follow-up of 10 years, 40% had TSH within the reference range, 44% maintained elevated TSH, and 16% had added low T4 to the elevated TSH. The annual incidence rate of progression to OH was 22.3 (16.5-101.9) per 1000 person-years [18 (12.6-25.6) for those with TSH 5.07-9.9 mU/L and 57.8 (22.8-101.9) for patients with TSH ≥ 10 mU/L per 1000 person-years (P = 0.001)]. After adjusting age, sex, body mass index (BMI), thyroid peroxidase antibody (TPOAb), and serum TSH, only TPOAb positivity (HR: 2.31; 95% CI 1.10-4.83, P = 0.026) and baseline TSH level ≥ 10 mU/L (HR: 5.14; 95% CI 2.14-12.3, P < 0.001) remained as predictors for development of OH. In patients with TSH 5.07-9.9 mU/L, TPOAb positivity was associated with an increased risk of OH (HR: 2.41; 95% CI 1.10-5.30, P = 0.027). However, in patients with TSH ≥ 10 mU/L, TPOAb positivity was not a predictor (P = 0.49). CONCLUSION TPOAb and not TSH are associated with the development of OH in individuals with serum TSH below 10 mU/L, and follow-up at regular intervals is recommended in TPOAb-positive individuals with TSH between 5 and 10 mU/L.
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Treatment of post-radioactive iodine relapse of hyperthyroidism: comparison of long-term methimazole and radioactive iodine treatment. J Endocrinol Invest 2022; 45:1919-1924. [PMID: 35610532 DOI: 10.1007/s40618-022-01823-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/08/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND This study aimed to compare the time to achieve euthyroidism and sustained control of hyperthyroidism after treatment with radioactive iodine (RAI) or long-term methimazole (LT-MMI) in patients with post-RAI relapsed hyperthyroidism. METHODS Sixty four patients with recurrence of hyperthyroidism after RAI treatment were randomly assigned to either RAI or LT-MMI treatment. Both groups were followed every 1-3 months in the first year and then every 6 months for a total of 60 months. RESULTS In RAI and LT-MMI groups, mean age was 49.0 ± 12.1 and 50.1 ± 14.6 years and time of relapse of hyperthyroidism after previous RAI treatment was 23.2 ± 18.8 and 20.8 ± 17.1 months, respectively. At the end of study, in the LT-MMI group, 31 (97%) and 1 (3%) were euthyroid and hypothyroid, respectively; in the RAI group, 8 (25%) patients were euthyroid, whereas 18 (56%), 3 (9.5%) and 3 (9.5%) had overt hypothyroidism, subclinical hypothyroidism and hyperthyroidism, respectively. Mean time to euthyroidism was 9.4 ± 5.0 months in the RAI group and 3.5 ± 2.8 months in the LT-MMI group (p < 0.001). Patients in the RAI group spent 77.7 ± 14.0 percent and those in the LT-MMI group spent 95.2 ± 5.9 percent of 60 months in the euthyroid state (p < 0.001). CONCLUSION In patients with post-RAI relapse of hyperthyroidism, LT-MMI treatment was superior to radioiodine because of faster achievement of euthyroidism and more sustained control of hyperthyroidism during 60 months of follow-up.
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Appropriate duration of antithyroid drug treatment as a predictor for relapse of Graves' disease: a systematic scoping review. J Endocrinol Invest 2022; 45:1139-1150. [PMID: 35088381 DOI: 10.1007/s40618-021-01730-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/18/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Following the conventional 12-18 month antithyroid drug (ATD) treatment in Graves' disease (GD), 50% of patients experience relapse of hyperthyroidism. OBJECTIVE The aim of this systematic scoping review was critical appraisal of duration of ATD therapy in the last 80 years. METHODS Articles were identified through the search of PubMed from January 1, 1941 to April 30, 2021. All study types were included. Articles were eligible if they reported data on the length of ATD treatment, particularly thyroid hormones and TSH receptor antibodies (TRAb) concentrations and specifically those with data on the remission and/or relapse rates. RESULTS We described major progress regarding the duration of ATD therapy and related outcomes at every 20 years. Articles of 1941-1960 were mainly concerned with determination of favorable treatment, minimal effective dose, side effects and rate of remission after < 12-month ATD therapy. Studies with larger number of patients and longer follow-ups appeared in 1961-1980; higher remission rate after 18-24 months versus 6 months of ATD therapy was reported. Articles of 1981-2000 focused on identification of factors associated with high relapse rates after discontinuation of ATD. In 2001-2021, ATD became the first choice of treatment in many countries. However, 12-18 months of ATD therapy was arbitrarily chosen as the appropriate option. According to recent studies, persistent normalization of TRAb occurs after 5 years of methimazole therapy and ATD treatment of > 60 months could offer a 4-year remission rate of 85%. CONCLUSION Long-term ATD treatment for more than 60 months is safe and effective, has the highest remission rate and cures most patients with GD; hence, it should be considered as the most appropriate duration for ATD therapy in these patients.
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0240 College Football Players Compared to Other Collegiate Athletes: Symptoms of Insufficient Sleep Duration, Insomnia, and Sleep Apnea. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
College athletes experience frequent sleep disturbances. Data from professional football players suggests high rates of sleep apnea symptoms. Little data is available on college football players, especially compared to other athletes.
Methods
Data were obtained from N=189 NCAA Division-I student athletes, including N=45 football players). Outcomes of interest came from the Sleep Disorders Symptom Check List (SDSCL) which rated symptoms on a frequency scale of 0: never and 4: >5 times/week. Symptoms evaluated were daytime tiredness, any snoring, loud snoring, breathing pauses during sleep, and waking up choking/gasping sleep apnea), as well as difficulty falling asleep, difficulty with nighttime awakenings, and early morning awakenings (insomnia). Other outcomes include self-reported sleep duration, Insomnia Severity Index, frequency of caffeine use, and frequency of use of medications to help with sleep. Linear and ordinal logistic regression analyses were adjusted for age, sex, year in school, socioeconomic status, and mood. Post-hoc analyses examined men only.
Results
Regarding sleep apnea symptoms, football players reported more snoring (oOR=3.14, p=0.01), loud snoring (oOR=4.38, p=0.008), breathing pauses (oOR=5.42, p=0.0499), and choking/gasping (oOR=8.51), but not daytime tiredness. Regarding insufficient sleep, football players reported no difference in sleep duration but decreased caffeine use (oOR=0.27, p=0.002). Regarding insomnia, football players showed no difference in ISI scores or insomnia symptoms, but increased likelihood of sleeping pill use (oOR=3.01, p=0.03). When analyses were restricted to men only, all of these relationships were maintained.
Conclusion
College football athletes may exhibit different sleep symptoms than other college athletes, as they exhibit more sleep apnea-related symptoms, without the increase in daytime symptoms, such as tiredness.
Support
The REST study was funded by an NCAA Innovations grant.
Dr. Grandner is supported by R01MD011600
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The effect of electro-acupuncture on pro-oxidant antioxidant balance values in overweight and obese subjects: a randomized controlled trial study. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2017; 15:/j/jcim.ahead-of-print/jcim-2015-0081/jcim-2015-0081.xml. [PMID: 29197218 DOI: 10.1515/jcim-2015-0081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/27/2017] [Indexed: 12/13/2022]
Abstract
Objective To undertake a randomized controlled trial in 196 obese subjects to examine the effect of electro-acupuncture on serum pro-oxidant antioxidant balance (PAB) values. Methods Subjects received authentic acupuncture (cases) or sham acupuncture (controls) for 6 weeks in combination with a low-calorie diet. In the following 6 weeks, they received the low-calorie diet alone. Serum PAB was measured at baseline, and 6 and 12 weeks later. Results We found that serum PAB values decreased significantly in the group receiving the authentic acupuncture compared to the sham treatment (p<0.001) at week 6, and whilst serum PAB increased significantly (p<0.05) in the second phase of the study, a significant difference between two groups remained at 12 weeks (p<0.05). Conclusions Electro-acupuncture in combination with a low-calorie diet was more effective at reducing serum PAB values in obese subjects compared to diet alone. Further work is required to determine the mechanism by which electro-acupuncture has this effect.
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TTY2 genes deletions as genetic risk factor of male infertility. ACTA ACUST UNITED AC 2017; 63:57-61. [PMID: 28364784 DOI: 10.14715/cmb/2017.63.2.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 03/25/2017] [Indexed: 11/18/2022]
Abstract
Y chromosome has a number of genes that are expressed in testis and have a role in spermatogenesis. TTY2L12A and TTY2L2A are the members of testis transcript Y2 (TTY2) that are Y linked multi-copy gene families, located on Yp11 and Yq11 loci respectively. The aim of this study was to investigate frequency of TTY2L12A and TTY2L2A deletions in azoospermic patients compared with fertile males. This study was performed on 45 infertile males with idiopathic azoospermia without any AZF micro deletions (group A), 33 infertile males with azoospermia which do not screened for AZF micro deletions (group B) and 65 fertile males (group C), from October 2013 to April 2015 in west of Iran. Polymerase chain reaction (PCR) method was used for detection of TTY2L12A and TTY2L2A gene deletions in studied groups. No deletions were detected in normal fertile males of group C. 1 out of 45 azoospermic males of group A (2.22%) and 3 out of 33 azoospermic males of group B (9.09%) had TTY2L2A deletion (p= 0.409 and p= 0.036 respectively), also 1 out of 45 azoospermic males of group A (2.22%) and 4 out of 33 azoospermic males of group B (12.12%) had TTY2L12A deletion (p= 0.409 and p= 0.011 respectively). None of azoospermic males in Group A and B had deletions in both genes. Our data showed significant correlation between non-obstructive azoospermia and TTY2L12A and TTY2L2A deletions. Thus, it seems that TTY2L12A and TTY2L2A deletions can consider as one of the genetic risk factors for non-obstructive azoospermia.
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Effect of Different Doses of Oral Cholecalciferol on Serum 1,25(OH)2D in Vitamin D Deficient Schoolchildren. Horm Metab Res 2016; 48:394-8. [PMID: 26975346 DOI: 10.1055/s-0042-101029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Data regarding 1,25-dihydroxycholecalciferol in adolescents are limited. We aimed to determine serum levels of this active metabolite of vitamin D and the effects of different doses of vitamin D on its concentration in schoolchildren with high prevalence of vitamin D deficiency. In a previously published randomized double-blind, placebo-controlled trial, 210 subjects, aged 14-20 years, were assigned to 3 regimens of vitamin D treatment: group A (n=70) received 50 000 U oral cholecalciferol monthly, group B (n=70), 50 000 U bimonthly, and group C (n=70), placebo. Serum 25(OH)D, calcium, parathyroid hormone, and bone markers were measured at baseline and after 2 and 5 months of treatment. In the present study, serum levels of 1,25(OH)2D were measured in 97 boys and 95 girls. At baseline, girls had significantly higher concentrations of 1,25(OH)2D than boys (36, IQR: 24, 63 vs. 30, IQR: 15, 57.5 pmol/l; p<0.01). There was no significant correlation between serum levels of 25(OH)D and 1,25(OH)2D in the total population (Spearman rho=- 0.111; p=0.126), boys (Spearman rho=0.008; p=0.941), and girls (Spearman rho=0.036; p=0.729). Also, 1,25(OH)2D values did not change over time in different study groups. Moreover, total and sex-stratified analysis did not show any significant difference between different groups at different times of the study period. In an adolescent population with high prevalence of hypovitaminosis D especially in girls, 1,25(OH)2D values were higher in girls than boys. There was no significant change in 1,25(OH)2D concentrations with different doses of vitamin D.
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Balancing risk and benefit of extended pelvic lymph node dissection in patients undergoing radical cystectomy. World J Urol 2015; 34:41-8. [PMID: 26621208 DOI: 10.1007/s00345-015-1734-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 11/14/2015] [Indexed: 12/11/2022] Open
Abstract
PURPOSE The optimal extent of pelvic lymph node dissection (PLND) during radical cystectomy (RC) in patients with urothelial carcinoma of the bladder (UCB) is the subject of ongoing debate. In this study, we compared local recurrence-free and overall survival, in addition to complication rates, after extended PLND (ePLND) compared to standard PLND (sPLND). METHODS We reviewed the charts of 314 patients who underwent RC for UCB between 2008 and 2013. ePLND was performed in 105 patients, and 105 matched patients who underwent standard PLND (sPLND) were selected based on clinical parameters. Local recurrence-free and overall survival rates were assessed using Kaplan-Meier survival analysis, and Cox proportional hazards models were used to assess potential determinants of these outcomes. Complications were assessed at 30 and 90 days using the Clavien-Dindo reporting system. RESULTS More lymph nodes were removed by ePLND (median 21) compared to sPLND (median 9; P < 0.001), but the rate of nodal involvement was not different. In multivariable analysis, ePLND was associated with a better local recurrence-free survival (HR = 0.63, P = 0.005), but was not an independent predictor of overall survival (HR = 1.06, P = 0.84). Estimated blood loss was greater with ePLND (1047.3 vs. 584.5 ml P < 0.001), but there was no significant difference in complications. CONCLUSIONS Extended PLND appears to reduce the risk of local recurrence, but was not an independent predictor of overall survival in this cohort. ePLND was associated with greater blood loss compared to sPLND, but not with other perioperative complications.
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Trauma Association of Canada Annual Scientific Meeting, Westin Calgary Calgary, Alberta, Apr. 10–11, 2015Outcomes and opportunities for improvement in self-inflicted blunt and penetrating traumaAbdominal compartment syndrome in the childActive negative pressure peritoneal therapy after abbreviated laparotomy: The intraperitoneal vacuum randomized controlled trialUse of a novel combined RFA/saline energy instrument for arresting ongoing hemorrhage from solid organ injuriesHealth care costs of burn patients from homes without fire sprinklersPenetrating trauma in eastern Ontario: a descriptive analysisThresholds of rotational thrombelastometry (ROTEM) used for the diagnosis and management of bleeding trauma patients: a systematic reviewA quality indicator to measure hospital complications for injury admissionsThromboelastography (TEG) in the management of trauma: implications for the developing worldPotential role of the rural trauma team development course (RTTDC) in the United Arab Emirates (UAE)Applicability of the advanced disaster medical response (ADMR) course, Trinidad and TobagoInflammatory mediators in intra-abdominal sepsis or injury: a scoping reviewEvaluation of the online Concussion Awareness Training Toolkit (CATT) for parents, players and coachesUltrasound assessment of optic nerve sheath diameter (ONSD) in healthy volunteersThe benefits of epidural analgesia in flail chest injuriesMandatory reporting rates of injured alcohol-impaired drivers with suspected alcohol dependence in a level 1 Canadian trauma centre: a single institution’s experienceSimulation implementation in a new pediatric residency program in Haiti: trauma specificsManagement of skull fractures in children younger than 1 year of ageResource use in patients who have sustained a traumatic brain injury within an integrated Canadian trauma system: a multicentre cohort studyResource use intensity in a mature, integrated Canadian trauma system: a multicentre cohort studyRates and determinants of unplanned emergency department visits and readmissions within 30 days following discharge from the trauma service — the Ottawa Hospital experienceAlcohol — screening, brief intervention and referral to treatment (SBIRT): Is it readily available in Canadian trauma centres?Management of traumatic occult hemothorax: a survey among trauma providers in CanadaAn audit of venous thromboembolism prophylaxis: a quality assurance project at our level 1 trauma centreCatecholamines as outcome markers in traumatic brain injuryAre we missing the missed injury? The burden of traumatic missed injuries diagnosed after hospital dischargeThe use of fibrinogen concentrate in trauma: a descriptive systematic reviewVery early initiation of chemical venous thromboembolism prophylaxis after solid organ injury is safe: a call for a national prospective multicentre studyThe 2 student to 1 faculty (2:1) model of teaching the Advanced Trauma Operative Management (ATOM) courseTrauma transfusion in the elderlyCocaine and benzodiazepines are more predictive of an injury severity score greater than 15 compared to alcohol or tetrahydrocannabinol in trauma patients under 18 years oldAre we missing traumatic bowel and mesenteric injuries?The marriage of surgical simulation and telementoring for damage control surgical training of operational first-respondersAdding remote ultrasound control to remote just-in-time telementored trauma ultrasound: a pilot studyDescriptive analysis of morbidity and mortality associated with falls at a level 1trauma centreDevelopment of an ICU transition questionnaire: evaluating the transfer process from ICU, ward, and patient/family stakeholder perspectivesUse of IO devices in trauma: A survey of trauma practitioners in Canada, Australia and New ZealandTime to reversal of medication-induced coagulopathy in traumatic intracranial hemorrhageMeta-analysis of randomized control trials of hospital based violence interventions on repeat intentional injuryBlunt injury of a horseshoe kidney, case report and review of the literatureLegal consequences for alcohol-impaired drivers involved in motor vehicle collisions: a systematic reviewA characterization of major adult sport-related trauma in Nova Scotia, 2000–2013Is hockey the most dangerous pediatric sport? An evaluation of pediatric sport-related injuries treated in Nova ScotiaInterim results of a pilot randomized control trial of an ED-based violence intervention programPre-intubation resuscitation by Canadian physicians: results of a national surveyFirst-responder accuracy using SALT during mass-casualty incident simulationEmergent endotracheal intubation: medications and device choices by Canadian resuscitation physicians“Oh the weather outside is frightful”: Severe injury secondary to falls while installing residential Christmas lightsCan we speak the same language? Understanding Quebec’s inclusive trauma systemAn unusual segmental clavicle fracture treated with titanium elastic nailImpact of the age of stored blood on trauma patient mortality: a systematic reviewInterhospital transfer of traumatic brain injury: utilization of helicopter transportCheerleading injuries: a Canadian perspectivePre-hospital mode of transport in a rural trauma system: air versus groundAnalysis of 15 000 patient transfers to level 1 trauma centre: Injury severity does not matter — just drive, drive, drive!The effects of legislation on morbidity and mortality associated with all-terrain vehicle and motorcycle crashes in Puerto RicoAssessing how pediatric trauma patients are supported nutritionally at McMaster Children’s HospitalOutcomes of conservative versus operative management of stable penetrating abdominal traumaS.T.A.R.T.T. — Evolution of a true multidisciplinary trauma crisis resource management simulation courseDevelopment of criteria to identify traumatic brain injury patients NOT requiring intensive care unit monitoringAssigning costs to visits for injuries due to youth violence — the first step in a cost-effectiveness analysisThere’s no TRIK to it — development of the Trauma Resuscitation in Kids courseResilient despite childhood trauma experiencesA five-year, single-centre review of toxic epidermal necrolysis managementAll in the family: creating and implementing an inclusive provincial trauma registryLessons learned from a provincial trauma transfer systemThe NB Trauma Program: 5 years laterProvincial coordination of injury prevention: the New Brunswick (NB) experienceImproving access and uptake of trauma nursing core course (TNCC): a provincial approachULTRASIM: ultrasound in trauma simultation. Does the use of ultrasound during simulated trauma scenarios improve diagnostic abilities?Traumatic tale of 2 cities, part 1: Does being treated by different EMS affect outcomes in trauma patients destined for transport to level 1 trauma centres in Halifax and Saint John?Traumatic tale of 2 cities, part 2: Does being treated by different hospitals affect outcome in trauma patients destined for transport to Level 1trauma centres in Halifax and Saint John?Protective devices use in road traffic injuries in a developing countryFunctional and anatomical connectivity and communication impairments in moderate to severe traumatic brain injuryCaring and communicating in critical cases: Westlock trauma form, a resource for rural physiciansMonitoring of ocular nerve sheath in traumatic raised intracranial pressure (Moonstrip Study): a prospective blinded observational trialEstablishing an alcohol screening and brief intervention for trauma patients in a multicultural setting in the Middle East: challenges and opportunitiesThe poor compliance to seat belt use in Montréal: an 18 461 road user iPhone-based studyAn iPad-based data acquisition for core trauma registry data in 6 Tanzanian hospitals: 1 year and 13 462 patients later“The Triple-Q Algorithm”: a practical approach to the identification of liver topographyA pan-Canadian bicycle helmet use observational studyDoor to decompression: the new benchmark in trauma craniotomiesAre missed doses of pharmacological thromboprophylaxis a risk factor for thromboembolic complications?Complications following admission for traumatic brain injuryExcessive crystalloid infusion in the first 24 hours is not associated with increased complications or mortalitySBIRT: plant, tend, growReal time electronic injury surveillance in an African trauma centreSBIRT in concert: establishing a new initiativeReview of the current knowledge of the pathophysiology of acute traumatic coagulopathy: implications for current trauma resuscitation practicesFactors associated with primary fascial closure rates in patients undergoing damage control laparotomyFree intraperitoneal fluid on CT abdomen in blunt trauma: Is hospital admission necessary?The need for speed — the time cost of off-site helipadsEndovascular management of penetrating Zone III retroperitoneal injuries in selective patients: a case reportMeasured resting energy expenditure in patients with open abdomens: preliminary data of a prospective pilot studyTraumatic inferior gluteal artery pseudoaneurysm: case report and review of literaturePancreatico duodenectomy, SMA, SMV repair and delayed reconstruction following blunt abdominal trauma. A case report with discussion of trauma whipple and complex pancreatico duodenal injuriesA retrospective evaluation of the effect of the Trauma Team Training program in TanzaniaDoes procalcitonin measurement predict clinical outcomes in critically ill/injured adults managed with the open abdomen technique?In trauma, conventional ROTEM and TEG results are not interchangeable but are similar in clinical applicabilitySevere trauma in the province of New Brunswick: a descriptive epidemiological studyPartnering for success — a road safety strategy for London and regionEvaluation of a patient safety initiative of rapid removal of backboards in the emergency departmentActive negative pressure peritoneal therapy and C-reactive protein levels after abbreviated laparotomy for abdominal trauma or intra-abdominal sepsisA comparison of outcomes: Direct admissions vs. interhospital transfers April 2009–March 2014YEE HA or YEE OUCH! A 5-year review of large animal-related incidentsEarly goal-directed therapy for prevention of hypothermia-related transfusion, morbidity and mortality in severely injured trauma patientsImproving care of adolescent trauma patients admitted to adult trauma centres by fostering collaboration between adult and pediatric partnersExpediting operational damage control laparotomy closure: iTClam v. suturing during damage control surgical simulation trainingAre conventional coagulation tests inadequate in the assessment of acute traumatic coagulopathy?Predictors of long-term outcomes in patients admitted to emergency general surgery services: a systematic review of literatureUse of the iTClamp versus standard suturing techniques for securing chest tubes: A randomized cadaver studyiTClamp application for control of simulated massive upper extremity arterial hemorrhage by tactical policeAssessing performance in the trauma roomThe deadly need for methadone/opiate educationTrends in the management of major abdominal vascular injuries: 2000–2014Addressing high school seniors’ risky behaviours through a hospital-based and peer teaching outreach programScreening for risk of post-traumatic stress disorder after injury in acutely injured children: a systematic reviewThe impact of trauma centre designation levels on surgical delay, mortality and complications: a multicentre cohort studyHow many acutely injured children report subsequent stress symptoms?The frequency of coagulopathy and its significance in an emergency neurotrauma facilityPsychosocial care for injured children: The views of 2500 emergency department physicians and nurses from around the worldDevelopment of the Trauma Electronic Document (TED)Development of trauma team activation criteria for an urban trauma centreBrains and brawn: evaluation of a sports skills and concussion awareness campRegional trauma networks: a tale of 2 pilotsContinuous data quality improvement in a provincial trauma registryDoes the Rural Trauma Team Development Course shorten transfer time?Epidemiology of trauma in Puerto RicoCT scans facilitate early discharge of trauma patientsFeasibility of data collection in a conflict zone to assess the impact on emergency health care deliveryConsent for Emergency Research (CONfER): a national survey of Canadian research ethics board practicesMaking handover safer for our trauma patients through the lens of trauma team leadersChallenges and opportunities to improve trauma transitions of care from emergency to intensive care nursingPhysical disorder following major injury: a population-based studyToward an inclusive trauma system: regional trauma system development in OntarioTraumatic brain injury in British Columbia: current incidence, injury patterns and risk factorsAcute cytokine and chemokine profiles in brain-injured patients: relationship to sympathetic activation and outcomeMultidisciplinary trauma simulation training in a tertiary care centreNon-operative management of blunt splenic injuries: routine radiologic follow-up may reduce the time of activity restrictionModified triple layer peritoneal-aponeurotic transposition: a new strategy to close the open abdomenMesenchymal stem cells locate and differentiate to the trauma site in a blunt rat liver trauma model: preliminary resultsThree indications for the “open abdomen”, anatomical, logistical and physiological: How are they different?Development of an urban trauma centre using lean methodologyThe impact of standardized care in 191 patients with chest tube thoracostomyComplex abdominal wall reconstruction: recommendations from the Canadian Abdominal Wall Reconstruction GroupCompensatory behaviours and cognitions in persons with history of traumaDevelopment of the Kenyatta National Hospital — University of Alberta Orthopedic Trauma Assessment Tool: phase 1 resultsRisk-taking behaviour negatively affects outcome in burn patients. Can J Surg 2015. [DOI: 10.1503/cjs.003415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Abstract
OBJECTIVES To identify structural connectivity change occurring during the first 6 months after traumatic brain injury and to evaluate the utility of diffusion tensor tractography for predicting long-term outcome. METHODS The participants were 28 patients with mild to severe traumatic axonal injury and 20 age- and sex-matched healthy control subjects. Neuroimaging was obtained 0-9 days postinjury for acute scans and 6-14 months postinjury for chronic scans. Long-term outcome was evaluated on the day of the chronic scan. Twenty-eight fiber regions of 9 major white matter structures were reconstructed, and reliable tractography measurements were determined and used. RESULTS Although most (23 of 28) patients had severe brain injury, their long-term outcome ranged from good recovery (16 patients) to moderately (5 patients) and severely disabled (7 patients). In concordance with the diverse outcome, the white matter change in patients was heterogeneous, ranging from improved structural connectivity, through no change, to deteriorated connectivity. At the group level, all 9 fiber tracts deteriorated significantly with 7 (corpus callosum, cingulum, angular bundle, cerebral peduncular fibers, uncinate fasciculus, and inferior longitudinal and fronto-occipital fasciculi) showing structural damage acutely and 2 (fornix body and left arcuate fasciculus) chronically. Importantly, the amount of change in tractography measurements correlated with patients' long-term outcome. Acute tractography measurements were able to predict patients' learning and memory performance; chronic measurements also determined performance on processing speed and executive function. CONCLUSIONS Diffusion tensor tractography is a valuable tool for identifying structural connectivity changes occurring between the acute and chronic stages of traumatic brain injury and for predicting patients' long-term outcome.
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MP-05.06: Open prostatectomy versus transurethral resection of the prostate where do we stand in the new era? A randomized clinical trial. Urology 2010. [DOI: 10.1016/j.urology.2010.07.420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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A comparison of posterior wall thickness, interventricular septum thickness and relative wall thickness of left ventricle of heart in male athletes (badminton and karate) and non-athletes. Br J Sports Med 2010. [DOI: 10.1136/bjsm.2010.078725.96] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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The effects of selected submaximal short duration activities on S-T segment changes in active young men. Br J Sports Med 2010. [DOI: 10.1136/bjsm.2010.078725.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Social behavior and kin discrimination in a mixed group of cloned and non cloned heifers (Bos taurus). Theriogenology 2010; 74:1596-603. [PMID: 20708240 DOI: 10.1016/j.theriogenology.2010.06.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Revised: 06/25/2010] [Accepted: 06/25/2010] [Indexed: 10/19/2022]
Abstract
For more than ten years, reproductive biotechnologies using somatic cell nuclear transfer have made possible the production of cloned animals in various domestic and laboratory species. The influence of the cloning process on offspring characteristics has been studied in various developmental aspects, however, it has not yet been documented in detail for behavioral traits. Behavioral studies of cloned animals have failed to show clear inter-individual differences associated with the cloning process. Preliminary results showed that clones favor each other's company. Preferential social interactions were observed among cloned heifers from the same donor in a mixed herd that also included cloned heifers and control heifers produced by artificial insemination (AI). These results suggest behavioral differences between cloned and non-cloned animals and similarities between clones from the same donor. The aim of the present study was to replicate and to extend these previous results and to study behavioral and cognitive mechanisms of this preferential grouping. We studied a group composed of five cloned heifers derived from the same donor cow, two cloned heifers derived from another donor cow, and AI heifers. Cloned heifers from the same donor were more spatially associated and interacted more between themselves than with heifers derived from another donor or with the AI individuals. This pattern indicates a possible kin discrimination in clones. To study this process, we performed an experiment (using an instrumental conditioning procedure with food reward) of visual discrimination between images of heads of familiar heifers, either related to the subjects or not. The results showed that all subjects (AI and cloned heifers) discriminated between images of familiar cloned heifers produced from the same donor and images of familiar unrelated heifers. Cattle discriminated well between images and used morphological similarities characteristic of cloned related heifers. Our results suggest similar cognitive capacities of kin and non kin discrimination in AI and cloned animals. Kinship may be a common factor in determining the social grouping within a herd.
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17
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Face recognition algorithms surpass humans matching faces in images that vary in illumination. J Vis 2010. [DOI: 10.1167/6.6.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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When does an unfamiliar face become familiar? The effect of image type and familiarity on recognition from novel viewing conditions. J Vis 2010. [DOI: 10.1167/6.6.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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19
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Classification-based approaches to the analysis of functional neuroimaging data on face and object perception. J Vis 2010. [DOI: 10.1167/3.9.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Recognizing people from naturalistic video: The effects of facial motion and familiarity. J Vis 2010. [DOI: 10.1167/3.9.303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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The effect of motion information on infants' recognition of unfamiliar face. J Vis 2010. [DOI: 10.1167/5.8.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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23
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MP-06.01: Comparing Outcomes and Complications of Transvesical Prostatectomy Versus Transurethral Resection of Prostate. Urology 2009. [DOI: 10.1016/j.urology.2009.07.987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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How to analyze experiments using factorial designs with pattern classifiers and derive bootstrap based confidence and tolerance intervals. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70226-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Barycentric Discriminant Analysis (BDA): a new pattern recognition classifier that identifies voxels and regions of interest relevant for classification of functional brain imaging data. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70560-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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27
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POS-02.23: The association between prostatic involvement in transitional cell carcinoma of the bladder and pathologic characteristics of the bladder tumor. Urology 2007. [DOI: 10.1016/j.urology.2007.06.763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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V-04.06. Urology 2006. [DOI: 10.1016/j.urology.2006.08.1014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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UP-01.08. Urology 2006. [DOI: 10.1016/j.urology.2006.08.646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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MP-07.03. Urology 2006. [DOI: 10.1016/j.urology.2006.08.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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We-P11:257 Perception of stressors by selected patients of coronary care units in Yazd, Iran. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81610-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
This study investigated odor-category organization in three cultures by evaluating (i) the relationship between linguistic and perceptual categorization and (ii) the existence of an internal structure of odor categories. In the first experiment, three groups of 30 participants from American, French and Vietnamese cultures performed a sorting task. The first group sorted 40 odorants on the basis of odor similarity, the second group sorted 40 odor names on the basis of name similarity and the last group sorted 40 odor names on the basis of imagined odor similarity. Results showed that odor categorization was based on perceptual or conceptual similarity and was in part independent of word and imagined categorizations. In the second experiment, another group of 30 participants from each culture rated the typicality of the odorants for 11 odor categories. Results showed that some odorants were rated as more typical than others. Moreover, the typicality gradient predicted the odor space obtained in the odor sorting task in a consensual way among the three cultures. These results suggest that, as for other categories, odor categories are based on perceptual similarities rather than on semantic cues. Moreover odor-category structure might have a core representation which might be common to different cultures with boundaries which might be more culturally dependent.
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Partially distributed representations of objects and faces in ventral temporal cortex: evidence from the structure of the object categories and neural response patterns. J Vis 2004. [DOI: 10.1167/4.8.903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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From rotation to disfiguration: testing a dual-strategy model for recognition of faces across view angles. Perception 2000; 28:817-24. [PMID: 10664774 DOI: 10.1068/p2932] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A study is reported of the effect of distinctive marks on the recognition of unfamiliar faces across view angles. Subjects were asked to memorize a set of target faces, half of which had distinctive marks. Recognition was assessed by presenting the target faces, either in the same orientation, or after 90 degrees rotation, mixed with an equal number of distractors. Results show that the effect of distinctive marks depends on the view presented during learning. When a frontal view was learned, as predicted by the dual-strategy model [Valentin et al, in press, in Computational, Geometric, and Process Perspectives on Facial Cognition: Context and Challenges Eds T Wenger, J Townsend (Hillsdale, NJ: Lawrence Erlbaum Associates)], distinctive marks improve recognition performance in the 90 degrees condition but not in the 0 degree condition. However, when a profile view was learned, distinctive marks have no effect on recognition performance, even in the 90 degrees condition where a frontal view is tested.
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What represents a face? A computational approach for the integration of physiological and psychological data. Perception 1998; 26:1271-88. [PMID: 9604063 DOI: 10.1068/p261271] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Empirical studies of face recognition suggest that faces might be stored in memory by means of a few canonical representations. The nature of these canonical representations is, however, unclear. Although psychological data show a three-quarter-view advantage, physiological studies suggest profile and frontal views are stored in memory. A computational approach to reconcile these findings is proposed. The pattern of results obtained when different views, or combinations of views, are used as the internal representation of a two-stage identification network consisting of an autoassociative memory followed by a radial-basis-function network are compared. Results show that (i) a frontal and a profile view are sufficient to reach the optimal network performance; and (ii) all the different representations produce a three-quarter view advantage, similar to that generally described for human subjects. These results indicate that although three-quarter views yield better recognition than other views, they need not be stored in memory to show this advantage.
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The perception of face gender: the role of stimulus structure in recognition and classification. Mem Cognit 1998; 26:146-60. [PMID: 9519705 DOI: 10.3758/bf03211378] [Citation(s) in RCA: 137] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The perception of face gender was examined in the context of extending "face space" models of human face representations to include the perceptual categories defined by male and female faces. We collected data on the recognizability, gender classifiability (reaction time to classify a face as male/female), attractiveness, and masculinity/femininity of individual male and female faces. Factor analyses applied separately to the data for male and female faces yielded the following results. First, for both male and female faces, the recognizability and gender classifiability of faces were independent--a result inconsistent with the hypothesis that both recognizability and gender classifiability depend on a face's "distance" from the subcategory gender prototype. Instead, caricatured aspects of gender (femininity/masculinity ratings) related to the gender classifiability of the faces. Second, facial attractiveness related inversely to face recognizability for male, but not for female, faces--a result that resolves inconsistencies in previous studies. Third, attractiveness and femininity for female faces were nearly equivalent, but attractiveness and masculinity for male faces were not equivalent. Finally, we applied principal component analysis to the pixel-coded face images with the aim of extracting measures related to the gender classifiability and recognizability of individual faces. We incorporated these model-derived measures into the factor analysis with the human rating and performance measures. This combined analysis indicated that face recognizability is related to the distinctiveness of a face with respect to its gender subcategory prototype. Additionally, the gender classifiability of faces related to at least one caricatured aspect of face gender.
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Principal Component and Neural Network Analyses of Face Images: What Can Be Generalized in Gender Classification? JOURNAL OF MATHEMATICAL PSYCHOLOGY 1997; 41:398-413. [PMID: 9473402 DOI: 10.1006/jmps.1997.1186] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We present an overview of the major findings of the principal component analysis (pca) approach to facial analysis. In a neural network or connectionist framework, this approach is known as the linear autoassociator approach. Faces are represented as a weighted sum of macrofeatures (eigenvectors or eigenfaces) extracted from a cross-product matrix of face images. Using gender categorization as an illustration, we analyze the robustness of this type of facial representation. We show that eigenvectors representing general categorical information can be estimated using a very small set of faces and that the information they convey is generalizable to new faces of the same population and to a lesser extent to new faces of a different population. Copyright 1997 Academic Press. Copyright 1997 Academic Press
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More about the difference between men and women: evidence from linear neural networks and the principal-component approach. Perception 1995; 24:539-62. [PMID: 7567429 DOI: 10.1068/p240539] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The ability of a statistical/neural network to classify faces by sex by means of a pixel-based representation has not been fully investigated. Simulations with pixel-based codes have provided sex-classification results that are less impressive than those reported for measurement-based codes. In no case, however, have the reported pixel-based simulations been optimized for the task of classifying faces by sex. A series of simulations is described in which four network models were applied to the same pixel-based face code. These simulations involved either a radial basis function network or a perceptron as a classifier, preceded or not by a preprocessing step of eigendecomposition. It is shown that performance comparable to that of the measurement-based models can be achieved with pixel-based input (90%) when the data are preprocessed. The effect of the eigendecomposition preprocessing of the faces is then compared with spatial-frequency analysis of face images and analyzed in terms of the perceptual information it captures. It is shown that such an examination may offer insight into the facial aspects important to the sex-classification process. Finally, the contribution of hair information to the performance of the model is evaluated. It is shown that, although the hair contributes to the sex-classification process, it is not the only important contributor.
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Abstract
The other-race effect was examined in a series of experiments and simulations that looked at the relationships among observer ratings of typicality, familiarity, attractiveness, memorability, and the performance variables of d' and criterion. Experiment 1 replicated the other-race effect with our Caucasian and Japanese stimuli for both Caucasian and Asian observers. In Experiment 2, we collected ratings from Caucasian observers on the faces used in the recognition task. A Varimax-rotated principal components analysis on the rating and performance data for the Caucasian faces replicated Vokey and Read's (1992) finding that typicality is composed of two orthogonal components, dissociable via their independent relationships to: (1) attractiveness and familiarity ratings and (2) memorability ratings. For Japanese faces, however, we found that typicality was related only to memorability. Where performance measures were concerned, two additional principal components dominated by criterion and by d' emerged for Caucasian faces. For the Japanese faces, however, the performance measures of d' and criterion merged into a single component that represented a second component of typicality, one orthogonal to the memorability-dominated component. A measure of face representation quality extracted from an autoassociative neural network trained with a majority of Caucasian faces and a minority of Japanese faces was incorporated into the principal components analysis. For both Caucasian and Japanese faces, the neural network measure related both to memorability ratings and to human accuracy measures. Combined, the human data and simulation results indicate that the memorability component of typicality may be related to small, local, distinctive features, whereas the attractiveness/familiarity component may be more related to the global, shape-based properties of the face.
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Theory-based correlations and their role in children's concepts. Child Dev 1993; 64:1595-616. [PMID: 8112109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Recent accounts of conceptual development have emphasized the important role intuitive theories play in concept formation; however, it is still not clear exactly how these theories exert their influence. We present evidence that elementary school age children use theories to link together specific features associated with individual concepts. The results of our first experiment indicate that theory-based correlations play a prominent role in typicality judgments and in decisions about category membership. In a second experiment, we demonstrate that children's theories play an important role in determining which attributes will be considered most central to the concept. The results of these studies suggest that feature correlations can serve to link children's concepts with their intuitive theories of the world.
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Dietary protein in metabolic adaptation of rat thymus. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 1980; 17:237-41. [PMID: 7450811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Development of thymus enzymes in rats fed with normal and low protein diet. Indian J Med Res 1977; 65:376-85. [PMID: 924550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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