ID

Distribution by Scientific Domains

Kinds of ID

  • m id
  • mild id
  • profound id
  • severe id

  • Terms modified by ID

  • id capillary
  • id fused silica capillary
  • id gene
  • id protein

  • Selected Abstracts


    A comparison of offenders with intellectual disability across three levels of security

    CRIMINAL BEHAVIOUR AND MENTAL HEALTH, Issue 1 2006
    Todd Hogue
    Background,A number of authors have described, with disparate results, the prevalence of people with intellectual disability and their characteristics, in a range of offender cohorts defined by service use. These have included high security, a range of criminal justice services and community services. There is a need for research comparing cohorts of offenders with intellectual disabilities across different settings. Aim and hypothesis,To conduct such a comparison and test the hypothesis that severity of characteristics measured will be highest in highest levels of residential security. Method,A clinical-record-based comparison a offenders with intellectual disability in high security (n = 73), medium/low security (n = 70), and a community service (n = 69). Results,Groups were similar in age and tested IQ levels. Early psychiatric service contact had been more likely in the lower security groups. In line with the hypothesis, more complex presentations, in particular comorbid personality disorder, was more likely in the highest security group. Both fatal and non-fatal interpersonal violence convictions were significantly related to group, with more in the high security group sustaining a conviction both at the index offence and prior to that. Over 50% of all groups had at least one conviction for a sexual offence. A regression model accounting for 78% of the variance was made up largely of disposal variables (Mental Health Act status and probation) and indications of antisocial traits (criminal damage, lifetime conviction for murder and ICD-10 personality disorder classification). Conclusions and implications for practice,The authors show that context of sampling affects most relationships between intellectual disability (ID) and offending when the methods for measuring ID are held constant. The results also present several questions on the relationship between risk, services available in an area and referral to higher security. Copyright © 2006 John Wiley & Sons, Ltd. [source]


    NON-GYNAECOLOGICAL CYTOLOGY: THE CLINICIAN'S VIEW

    CYTOPATHOLOGY, Issue 2006
    I. Penman
    There is increased recognition of the importance of accurate staging of malignancies of the GI tract and lung, greater use of neoadjuvant therapies and more protocol-driven management. This is particularly important where regional lymph node involvement significantly impacts on curability. Multidetector CT and PET scanning have resulted in greater detection of potential abnormalities which, if positive for malignancy, would change management. There is also a greater recognition that many enlarged nodes may be inflammatory and that size criteria alone are unreliable in determining involvement. In other situations, especially pancreatic masses, not all represent carcinoma as focal chronic pancreatitis, autoimmune pancreatitis etc can catch out the unwary. A preoperative tissue diagnosis is essential and even if unresectable, oncologists are increasingly reluctant to initiate chemotherapy or enroll patients into trials without this. The approach to obtaining tissue is often hampered by the small size or relative inaccessibility of lesions by percutaneous approaches. As such novel techniques such as endoscopic ultrasound (EUS) guided FNA have been developed. A 120cm needle is passed through the instrument and, under real-time visualisation, through the gastrointestinal wall to sample adjacent lymph nodes or masses. Multiple studies have demonstrated the safety and performance of this technique. In oesophageal cancer, confirmation of node positivity by has a major negative influence on curative resection rates and will often lead to a decision to use neoadjuvant chemotherapy or a non-operative approach. Sampling of lymph nodes at the true coeliac axis upstages the patient to M1a status (stage IV) disease and makes the patient incurable. In NSCLC, subcarinal lymph nodes are frequently present but may be inflammatory. If positive these represent N2 (stage IIIA) disease and in most centres again makes the patient inoperable. Access to these lymph nodes would otherwise require mediastinosocopy whereas this can be done simply, safely and quickly by EUS. Overall the sensitivity for EUS , FNA of mediastinal or upper abdominal lymph nodes is 83,90% with an accuracy of 80,90%. In pancreatic cancer performance is less good but pooled analysis of published studies indicates a sensitivity of 85% and accuracy of 88%. In a recent spin-off from EUS, endobronchial ultrasound (EBUS) instruments have been developed and the ability to sample anterior mediastinal nodes has been demonstrated. It is likely that this EBUS , FNA technique will become increasingly utilised and may replace mediastinoscopy. The development of techniques such as EUS and EBUS to allow FNA sampling of lesions has increased the role of non-gynaecological cytology significantly in recent years. Cytology therefore remains important for a broad range of specialties and there is ongoing need for careful and close co-operation between cytologists and clinicians in these specialties. References:, 1. Williams DB, Sahai AV, Aabakken L, Penman ID, van Velse A, Webb J et al. Endoscopic ultrasound guided fine needle aspiration biopsy: a large single centre experience. Gut. 1999; 44: 720,6. 2. Silvestri GA, Hoffman BJ, Bhutani MS et al. Endoscopic ultrasound with fine-needle aspiration in the diagnosis and staging of lung cancer. Ann Thorac Surg 1996; 61: 1441,6. 3. Rintoul RC, Skwarski KM, Murchison JT, Wallace WA, Walker WS, Penman ID. Endobronchial and endoscopic ultrasound real-time fine-needle aspiration staging of the mediastinum ). Eur Resp J 2005; 25: 1,6. [source]


    Obesity and intellectual disability,

    DEVELOPMENTAL DISABILITIES RESEARCH REVIEW, Issue 1 2006
    James H. Rimmer
    Abstract While much of the industrialized world struggles for clues to the growing rise in obesity in their respective countries, researchers and service providers involved in understanding the health characteristics and health behaviors of persons with intellectual disability (ID) struggle with their own issues regarding the increased prevalence of obesity in this segment of the population. What is particularly alarming is that adults with ID residing in the United States in smaller, less supervised settings (e.g., group homes and family households) have a significantly higher rate of obesity compared to other countries and those living in larger and more supervised settings (e.g., institutions). These differences support the theory that the environment appears to exert a powerful influence on obesity in this population. Obesity presents a substantial threat to the livelihood of persons with ID and may have an effect on community participation, independent living, and healthy years of life. The lack of research on successful weight reduction strategies for obese persons with ID makes this an important and greatly needed area of research. MRDD Research Reviews 2006;12:22,27. © 2006 Wiley-Liss, Inc. [source]


    Angiotensin-I-converting enzyme insertion/deletion polymorphism and high urinary albumin concentration in French Type 2 diabetes patients

    DIABETIC MEDICINE, Issue 8 2003
    S. Hadjadj
    Abstract Aims Family-based studies suggest a genetic basis for nephropathy in Type 2 diabetes. The angiotensin-I-converting enzyme (ACE) gene is a candidate gene for Type 1 diabetes nephropathy. We assessed the association between high urinary albumin concentration and ACE insertion/deletion (I/D) polymorphism, in French Type 2 diabetes patients. Methods We studied 3139 micro/macroalbuminuric French patients recruited in the DIABHYCAR Study, an ACE inhibition trial in Type 2 diabetes patients with renal and cardiovascular outcomes. The main inclusion criteria were age , 50 years, urinary albumin concentration , 20 mg/l assessed centrally during two consecutive screening visits, and plasma creatinine concentration , 150 µmol/l. These patients were compared with 605 normoalbuminuric (NA; urinary albumin concentration < 10 mg/l at first screening for the DIABHYCAR Study) French patients. ACE I/D genotype was determined by nested polymerase chain reaction. Results The ACE I/D polymorphism was in Hardy,Weinberg equilibrium. The distribution of genotypes did not differ significantly between micro/macroalbuminuric and NA patients: 552 and 115 II, 1468 and 282 ID, 1119 and 208 DD (P = 0.67). However, the ACE D allele was more frequent among normotensive micro/macroalbuminuric patients than among NA patients (P = 0.039). Conclusions The ACE I/D polymorphism was not associated with high urinary albumin concentration in French Type 2 diabetes patients. [source]


    Application of the Levenshtein Distance Metric for the Construction of Longitudinal Data Files

    EDUCATIONAL MEASUREMENT: ISSUES AND PRACTICE, Issue 2 2010
    Harold C. Doran
    The analysis of longitudinal data in education is becoming more prevalent given the nature of testing systems constructed for No Child Left Behind Act (NCLB). However, constructing the longitudinal data files remains a significant challenge. Students move into new schools, but in many cases the unique identifiers (ID) that should remain constant for each student change. As a result, different students frequently share the same ID, and merging records for an ID that is erroneously assigned to different students clearly becomes problematic. In small data sets, quality assurance of the merge can proceed through human reviews of the data to ensure all merged records are properly joined. However, in data sets with hundreds of thousands of cases, quality assurance via human review is impossible. While the record linkage literature has many applications in other disciplines, the educational measurement literature lacks details of formal protocols that can be used for quality assurance procedures for longitudinal data files. This article presents an empirical quality assurance procedure that may be used to verify the integrity of the merges performed for longitudinal analysis. We also discuss possible extensions that would permit merges to occur even when unique identifiers are not available. [source]


    Capillary electrophoretic chiral separation of hydroxychloroquine and its metabolites in the microsomal fraction of liver homogenates

    ELECTROPHORESIS, Issue 5-6 2006
    Carmem Dickow Cardoso
    Abstract A rapid, selective, and low-cost chiral capillary electrophoretic method was developed for the simultaneous analysis of hydroxychloroquine (HCQ) and its three chiral metabolites: desethylchloroquine (DCQ), desethylhydroxychloroquine (DHCQ), and bisdesethylchloroquine (BDCQ) in the microsomal fraction of liver homogenates. After liquid,liquid extraction using toluene as extracting solvent, the drug and metabolites were resolved on a fused-silica capillary (50,,m ID, 50,cm total length, and 42,cm effective length), using 100,mmol/L of Tris/phosphate buffer, pH,9.0 containing 1% w/v sulfated-,-CD and 30,mg/mL hydroxypropyl-,-CD. Detection was carried out at 220,nm. The extraction procedure was efficient in removing endogenous interferents, and low values (,15%) for CVs and deviation from theoretical values were demonstrated for both within-day and between-day assays. The quantitation limit was 125,ng/mL with linear response over the 125,2000,ng/mL of concentration range for all metabolites. After validation, the method was used for an in vitro metabolism study of HCQ. The major HCQ metabolite formed by microsomal enzymes was (,)-(R)-DHCQ. [source]


    Method development and validation for the analysis of didanosine using micellar electrokinetic capillary chromatography

    ELECTROPHORESIS, Issue 21 2005
    Swapna Mallampati
    Abstract A selective MEKC method was developed for the analysis of didanosine in bulk samples. Successful separation of didanosine from 13 of its potential impurities, derived from the various synthetic preparation procedures, was achieved. As CZE gave poor separation selectivity, MEKC was preferable. The use of EKC allowed achievement of the separation in a significantly shorter time than conventional HPLC. An anionic long-chain surfactant, lithium dodecyl sulfate (LiDS), was used as the pseudostationary phase and sodium tetraborate buffer as the aqueous phase. In order to obtain the optimal conditions and to test the method robustness, a central composite response surface modeling experiment was performed. The optimized electrophoretic conditions include the use of an uncoated fused-silica capillary with a total length of 40,cm and an ID of 50,,m, a BGE containing 40,mM sodium tetraborate and 110,mM LiDS at pH,8.0, an applied voltage of 18.0,kV, and the capillary temperature maintained at 15°C. The method was found to be robust. The parameters for validation such as linearity, precision, and sensitivity are also reported. Three commercial bulk samples were analyzed with this system. [source]


    Titanium dioxide nanoparticles-coated column for capillary electrochromatographic separation of oligopeptides

    ELECTROPHORESIS, Issue 21 2005
    Yi-Ling Hsieh
    Abstract A novel column made through the condensation reaction of TiO2 nanoparticles (TiO2,NPs) with silanol groups of the fused-silica capillary is described. EOF measurements under various buffer constitutions were used to monitor the completion of reactions. The results indicated that the EOF was dependent on the interactions between buffers and the bonded TiO2,NPs. With formate/Tris buffer, EOF reversal at pH below,5 and cathodic EOF at pH above,5 were indicated. The pI of the bonded TiO2,NPs was found at ,ph,5. Only cathodic EOF was illustrated by substituting the mobile phase with either glutamate or phosphate buffer. It was elucidated that both glutamate and phosphate buffer yield a negative charge layer on the surface of TiO2,NPs attributable to the formation of a titanium complex. The CEC performance of the column was tested with angiotensin-type oligopeptides. Some parameters that would affect the retention behavior were investigated. The interactions between the bonded phases and the analytes were explicated by epitomized acid,base functional groups of the oligopepetides and the speciation of the surface oxide in different pH ranges. The average separation efficiencies of 3.1×104,plates/m is readily achieved with a column of 70,cm (50,cm)×50,,m,ID under an applied voltage of 15,kV, phosphate buffer (pH,6.0, 40,mM), and UV detection at 214,nm. [source]


    Capillary zone electrophoresis with a dynamic double coating for analysis of carbohydrate-deficient transferrin in human serum: Impact of resolution between disialo- and trisialotransferrin on reference limits

    ELECTROPHORESIS, Issue 24 2003
    Christian Lanz
    Abstract Capillary electrophoresis with a dynamic double coating formed by charged polymeric reagents represents a very effective tool for the separation of iron-saturated transferrin (Tf) isoforms and thus the determination of carbohydrate-deficient transferrin (CDT) in human serum. The resolution between di- and trisialo-Tf is dependent on the applied voltage and capillary temperature. With a 50 ,m inside diameter (ID) capillary of about 60 cm total length mounted into the P/ACE MDQ, 28 kV and 40°C, the resolution of the two Tf isoforms is shown to be between 1.0 and 1.4, whereas with reduced voltage and/or temperature, increased resolution at the expense of elongated run times is observed. Best data with complete resolution (Rs , 1.4) are obtained at 20 kV and 30°C. For the determination of CDT in serum, incomplete separation of di- and trisialo-Tf is demonstrated to have an impact on the reference limits. Analysis of the sera of 54 healthy individuals with no or moderate alcohol consumption and using valley-to-valley peak integration, the upper (lower) reference limits for CDT in relation to total Tf at the two power levels are 1.33 (0.52) and 1.57 (0.81)%, respectively, representing intervals that are significantly different (P < 0.001). Furthermore, the reference intervals are shown to be strongly dependent on the peak integration approach used. Valley-to-valley peak integration should only be employed for conditions with complete resolution between disialo- and trisialo-Tf. [source]


    Optimization of the chiral resolution of baclofen by capillary electrophoresis using ,-cyclodextrin as the chiral selector

    ELECTROPHORESIS, Issue 12-13 2003
    Imran Ali
    Abstract The chiral resolution of baclofen was achieved by capillary electrophoresis using a fused-silica capillary (60 cm×75 ,m ID). The background electrolyte (BGE) was phosphate buffer (pH 7.0, 50 mM)-acetonitrile (95:5 v/v) containing 10 mM ,-cyclodextrin. The applied voltage was 15 kV. The values of , and Rs were 1.06 and 1.00, respectively. The electrophoretic conditions were optimized varying the pH and the ionic strength of the BGE, concentrations of ,-cyclodextrin and acetonitrile and the applied voltage. [source]


    Old enough for a beer?

    ADDICTION, Issue 9 2008
    Compliance with minimum legal age for alcohol purchases in monopoly, Norway, other off-premise outlets in Finland
    ABSTRACT Aim To assess whether government monopoly outlets comply better with minimum legal age for purchase of alcohol compared to other off-premise outlets for alcohol sales. Methods Under-age-appearing 18-year-olds attempted to purchase alcohol in off-premise outlets applying identical procedures in Finland (n = 290) and Norway (n = 170). Outcomes were measured as whether or not the buyers were asked to present an identity (ID) card and whether or not they succeeded in purchasing alcohol. Results The buyers were asked to present an ID card in slightly more than half the attempts, and they succeeded in purchasing alcohol in 48% of the cases. The buyers were more likely to be requested to present an ID card and less likely to succeed in purchasing alcohol in monopoly outlets compared to other types of outlets, and also when other outcome predictors, such as age and gender of salesperson and crowdedness in the outlet, were taken into account. Conclusion Monopoly outlets may facilitate compliance with minimum legal age for purchase of alcohol. [source]


    Surveillance of Infectious Disease Occurrences in the Community: An Analysis of Symptom Presentation in the Emergency Department

    ACADEMIC EMERGENCY MEDICINE, Issue 7 2003
    Joe Suyama MD
    Objectives: To determine the effectiveness of a simulated emergency department (ED)-based surveillance system to detect infectious disease (ID) occurrences in the community. Methods: Medical records of patients presenting to an urban ED between January 1, 1999, and December 31, 2000, were retrospectively reviewed for ICD-9 codes related to ID symptomatology. ICD-9 codes, categorized into viral, gastrointestinal, skin, fever, central nervous system (CNS), or pulmonary symptom clusters, were correlated with reportable infectious diseases identified by the local health department (HD). These reportable infectious diseases are designated class A diseases (CADs) by the Ohio Department of Health. Cross-correlation functions (CCFs) tested the temporal relationship between ED symptom presentation and HD identification of CADs. The 95% confidence interval for lack of trend correlation was 0.0 ± 0.074; thus CCFs > 0.074 were considered significant for trend correlation. Further cross-correlation analysis was performed after chronic and non-community-acquirable infectious diseases were removed from the HD database as a model for bioterrorism surveillance. Results: Fifteen thousand five hundred sixty-nine ED patients and 6,489 HD patients were identified. Six thousand two hundred eight occurrences of true CADs were identified. Only 87 (1.33%) HD cases were processed on weekends. During the study period, increased ED symptom presentation preceded increased HD identification of respective CADs by 24 hours for all symptom clusters combined (CCF = 0.112), gastrointestinal symptoms (CCF = 0.084), pulmonary symptoms (CCF = 0.110), and CNS symptoms (CCF = 0.125). The bioterrorism surveillance model revealed increased ED symptom presentation continued to precede increased HD identification of the respective CADs by 24 hours for all symptom clusters combined (CCF = 0.080), pulmonary symptoms (CCF = 0.100), and CNS symptoms (CCF = 0.120). Conclusions: Surveillance of ED symptom presentation has the potential to identify clinically important ID occurrences in the community 24 hours prior to HD identification. Lack of weekend HD data collection suggests that the ED is a more appropriate setting for real-time ID surveillance. [source]


    Experiences of alcohol drinking among Swedish youths with type 1 diabetes

    EUROPEAN DIABETES NURSING, Issue 1 2009
    A Leger RN Diabetes Nurse
    Abstract Background: Alcohol consumption in Europe and North America is greatest in 18,25-year-olds. This behaviour can be seen as a transitional stage from childhood to adulthood, where consuming alcohol is perceived as a typical feature of adult behaviour. Youths often start to consume alcohol when they are 14,15 years of age, and one in five youngsters around 15 years of age report binge drinking. Studies of alcohol consumption among youths with type 1 diabetes have not been undertaken but it is well known that, in these people, alcohol drinking can cause hypoglycaemia and worsen the capacity to feel and interpret the symptoms of hypoglycaemia. Aim: The overall aim was to explore experiences of alcohol consumption among youths with type 1 diabetes. Another objective was to identify strategies as to how they deal with situations when they drink alcohol. Methods: Semistructured interviews with ten 18-year-old youths with type 1 diabetes, using Burnard's content analysis method. Results: This study illustrates that informants strive for security, independence and control. Frequency of binge drinking did not seem to differ from rates in other teenagers. Informants exposed themselves to considerable risks and many had met with serious incidents. Moreover, the result exemplifies how symptoms of diabetic ketoacidosis (such as nausea and vomiting) can easily be misinterpreted as a hang-over or gastroenteritis. Informants lacked age-appropriate knowledge about diabetes and the effects of alcohol, but had tested things out themselves; some involved their friends in their diabetes treatment. Moreover, three strategies occurred with the aim of normalisation and security: the 'low-consumption' strategy, the ,ambitious' strategy and the ,rather-high-than-dead' strategy. Fear of hypoglycaemia was a significant concern and the consequence was poor diabetes control. Conclusion: To increase youths' independence and security, the diabetes care team should provide adequate and relevant information about alcohol. Treatment plans might contain practical steps such as advice about responsible alcohol intake and adjustments of insulin and meals, and could also encourage young people with diabetes to carry diabetes ID and inform friends about hypoglycaemia (and how to handle situations involving alcohol). Copyright © 2009 FEND [source]


    Angiotensin-converting enzyme genotype and encephalopathy in Chernobyl cleanup workers

    EUROPEAN JOURNAL OF NEUROLOGY, Issue 1 2009
    A. D. Kehoe
    Background and purpose:, To identify, using a genetic model, a key role for the renin,angiotensin system (RAS) in the development of dyscirculatory encephalopathy (DE) in Chernobyl cleanup workers (CCW). The insertion/deletion polymorphism of the angiotensin-converting enzyme (ACE) gene denotes a substantial individual variation in RAS activity with the D-allele being associated with higher ACE activity. Methods:, Ninety-three male, Caucasian CCW were recruited from those under regular review at the All-Russia Centre of Emergency and Radiation Medicine, St. Petersburg. The presence or absence of DE was determined using existing institutional guidelines. ACE genotype was determined using internationally accepted methodologies. Results:, Angiotensin-converting enzyme genotype distribution in 59 subjects with DE was II: 10 (17%), ID: 31 (53%), DD: 18 (30%), D-allele frequency 56.8%. Whereas in those without the condition the distribution was II: 12 (35%), ID: 19 (56%), DD 3 (9%) and D-allele frequency 35.9% (P = 0.02). Conclusions:, These data are the first to identify an association between the ACE D-allele and DE in CCW. They provide evidence of a significant role for the RAS in the development of DE and suggest that clinical trials of ACE inhibition would be profitable in this group. [source]


    Angiotensin-Converting Enzyme Genotype Affects the Response of Human Skeletal Muscle to Functional Overload

    EXPERIMENTAL PHYSIOLOGY, Issue 5 2000
    Jonathan Folland
    The response to strength training varies widely between individuals and is considerably influenced by genetic variables, which until now, have remained unidentified. The deletion (D), rather than the insertion (I), variant of the human angiotensin-converting enzyme (ACE) genotype is an important factor in the hypertrophic response of cardiac muscle to exercise and could also be involved in skeletal muscle hypertrophy , an important factor in the response to functional overload. Subjects were 33 healthy male volunteers with no experience of strength training. We examined the effect of ACE genotype upon changes in strength of quadriceps muscles in response to 9 weeks of specific strength training (isometric or dynamic). There was a significant interaction between ACE genotype and isometric training with greater strength gains shown by subjects with the D allele (mean ± S.E.M.: II, 9.0 ± 1.7%; ID, 17.6 ± 2.2%; DD, 14.9 ± 1.3%, ANOVA, P 0.05). A consistent genotype and training interaction (ID DD II) was observed across all of the strength measures, and both types of training. ACE genotype is the first genetic factor to be identified in the response of skeletal muscle to strength training. The association of the ACE I/D polymorphism with the responses of cardiac and skeletal muscle to functional overload indicates that they may share a common mechanism. These findings suggest a novel mechanism, involving the renin-angiotensin system, in the response of skeletal muscle to functional overload and may have implications for the management of conditions such as muscle wasting disorders, prolonged bed rest, ageing and rehabilitation, where muscle weakness may limit function. [source]


    Association of angiotensin-I converting enzyme DD genotype with influenza pneumonia in the elderly

    GERIATRICS & GERONTOLOGY INTERNATIONAL, Issue 1 2002
    Miyuki Onishi
    Background: Although angiotensin-I converting enzyme (ACE) is known to associate with cough reflex and inflammatory conditions, and both may participate in influenza pneumonia in the elderly, no study has been carried out on the association between influenza pneumonia and the insertion/deletion (I/D) polymorphism of the ACE gene (ACE). Methods: The subjects were 934 elderly inpatients (mean ± SD age of 82 ± 8 years) in a long-term care hospital. The association between ACE I/D and the incidence of influenza-pneumonia events was assessed over a winter season. Data were analyzed by multiple logistic regression analysis, with adjustment for age, gender, already known clinical risk factors, and ACE-inhibitor use. Results: During the follow-up period, 330 patients developed influenza (Directigen FLU-A) and 89 developed influenza pneumonia (Center for Disease Control and Prevention (CDC) criteria with chest X-ray required), 16 fatal and 73 non-fatal. Compared to non-influenza subjects (n = 604) and influenza patients without pneumonia (n = 241), ACE DD genotype (vs ID + II) resulted in a significant risk for all pneumonia (relative risk 2.32 [95% CI: 1.30,4.14] and 2.76 [1.39,4.04]), non-fatal pneumonia (1.91 [1.01,3.63] and 2.57 [1.23,5.39]) and fatal pneumonia (6.27 [1.68,23.3] and 5.15 [1.29,20.5]). Conclusion:ACE I/D polymorphism is a strong and independent risk indicator of influenza pneumonia events in elderly inpatients. [source]


    Macro- and Micro-Purge Soil-Gas Sampling Methods for the Collection of Contaminant Vapors

    GROUND WATER MONITORING & REMEDIATION, Issue 1 2009
    Brian A. Schumacher
    Purging influence on soil-gas concentrations for volatile organic compounds (VOCs), as affected by sampling tube inner diameter and sampling depth (i.e., system volume) for temporary probes in fine-grained soils, was evaluated at three different field sites. A macro-purge sampling system consisted of a standard, hollow, 3.2-cm outer diameter (OD) drive probe with a retractable sampling point attached to an appropriate length of 0.48-cm inner diameter (ID) Teflon® tubing. The macro-purge sampling system had a purge system volume of 24.5 mL at a 1-m depth. In contrast, the micro-purge sampling systems were slightly different between the field sites and consisted of a 1.27-cm OD drive rod with a 0.10-cm ID stainless steel tube or a 3.2-cm OD drive rod with a 0.0254-cm inner diameter stainless steel tubing resulting in purge system volumes of 1.2 and 7.05 mL at 1-m depths, respectively. At each site and location within the site, with a few exceptions, the same contaminants were identified in the same relative order of abundances indicating the sampling of the same general soil atmosphere. However, marked differences in VOC concentrations were identified between the sampling systems, with micro-purge samples having up to 27 times greater concentrations than their corresponding macro-purge samples. The higher concentrations are the result of a minimal disturbance of the ambient soil atmosphere during purging. The minimal soil-gas atmospheric disturbance of the micro-purge sampling system allowed for the collection of a sample that is more representative of the soil atmosphere surrounding the sampling point. That is, a sample that does not contain an atmosphere that has migrated from distance through the geologic material or from the surface in response to the vacuum induced during purging soil-gas concentrations. It is thus recommended that when soil-gas sampling is conducted using temporary probes in fine-grained soils, the sampling system use the smallest practical ID soil-gas tubing and minimize purge volume to obtain the soil-gas sample with minimal risk of leakage so that proper decisions, based on more representative soil-gas concentrations, about the site can be made. [source]


    Utilizing Highly Crystalline Pyroelectric Material as Functional Gate Dielectric in Organic Thin-Film Transistors

    ADVANCED MATERIALS, Issue 8 2009
    Nguyen Thanh Tien
    Highly crystalline P(VDF-TrFE) materials have a large remnant polarization that causes the ID,VD curves to have no current saturation in the region where they normally would. This high crystallinity also results in a positive pyroelectricity, which is different from the conventional low response and nonlinear negative pyroelectricity. [source]


    Prognosis of dermal lymphatic invasion with or without clinical signs of inflammatory breast cancer

    INTERNATIONAL JOURNAL OF CANCER, Issue 1 2004
    Guenther Gruber
    Abstract It is still an open debate whether tumor emboli in dermal lymphatics without inflammatory signs represent a similar bad prognosis like inflammatory breast cancer. We evaluated the prognostic role of dermal lymphatic invasion (DLI) in breast cancer with (DLI + ID) or without (DLI w/o ID) inflammatory disease (ID). From August 1988 to January 2000, 42 patients with DLI were irradiated. Twenty-five were classified as pT4, 13 out of them as pT4d (inflammatory disease); the 17 remaining patients had 1 T1c, 12 T2 and 4 T3 cancers with DLI. Axillary dissection revealed node-positive disease in 39/41 patients (median, 9 positive nodes). Thirty-eight out of 42 patients received adjuvant systemic treatment(s). After a mean follow-up of 33 months, 22/42 patients (52%) are disease-free. The actuarial 3-year disease-free survival is 50% (DLI w/o ID, 61%; DLI + ID, 31%; p < 0.03); the corresponding overall survival was 69% (DLI w/o ID, 87%; DLI + ID, 37%; p = 0.005). The presence or absence of ID was the only significant parameter for all endpoints in multivariate analyses. Dissemination occurred in 19 (45%), local relapse in 7 (n = 17%) and regional failure in 4 (10%). Nine patients (21%) had contralateral breast cancer/relapse. Despite the same histopathologic presentation, DLI w/o ID offered a significantly better disease-free survival and overall survival than ID. The finding of dermal lymphatic tumor invasion predicts a high probability for node-positive disease. © 2003 Wiley-Liss, Inc. [source]


    A multiple access protocol with explicit and implicit reservation

    INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS, Issue 3 2001
    F. Davoli
    Abstract A new version of a MAC-level protocol is introduced and investigated, operating in a cellular environment, where a base station co-ordinates mobile users within each cell. The channel multiplexing structure is based on time division, and the slots in each frame are dynamically assigned to the users and their service classes by the cell base station. Decisions are taken on the basis of binary channel feedback information (collision/no collision), by assuming independence in the presence of packets at the mobile stations, and aim at maximizing the one-step throughput in the current frame. The frame is divided into two periods: the first (short) one contains a number of minislots, equal to the number of ,real' slots (i.e. those capable of containing a fixed size packet) of the second part. At the beginning of the frame, the access rights are computed and broadcast to the users; the enabled stations that have a packet to transmit respond, by sending a short burst that contains their ID in a minislot. This most recent feedback is used at the base station to update the parameters of the decision algorithm, which is then re-applied to yield the final access rights for the second part of the frame. The performance of the scheme is analysed by simulation in the presence of mixed voice and data traffic, and compared with those of a reservation random access protocol using the same algorithm in a single-phase fashion (RRA-ISA) and PRMA. Copyright © 2001 John Wiley & Sons, Ltd. [source]


    A scalable advanced RF IC design-oriented MOSFET model,

    INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, Issue 4 2008
    Matthias Bucher
    Abstract This article presents a validation of the EKV3 MOSFET compact model dedicated to the design of analogue/RF ICs using advanced CMOS technology. The EKV3 model is compared with DC, CV and RF measurements up to 20 GHz of a 110 nm CMOS technology. The scaling behaviour over a large range of channel lengths and bias conditions is presented. Long-channel devices show significant non-quasi static effects while in short-channel devices the parasitics modelling is critical. This is illustrated with Y-parameters and ft vs. ID in NMOS and PMOS devices, showing good overall RF modelling abilities of the EKV3 MOSFET model. © 2008 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2008. [source]


    Efficacy of urinary guidelines in the management of post-stroke incontinence

    INTERNATIONAL JOURNAL OF UROLOGICAL NURSING, Issue 1 2009
    Stephanie Vaughn
    Abstract Urinary incontinence (UI) is common occurrence among stroke survivors and impacts their recovery. This mixed method study examined the effects of implementation of evidence-based urinary guidelines by the Interdisciplinary (ID) team in the management of post-stroke UI in stroke survivors in an acute rehabilitation hospital in Southern California. Essential elements of the guidelines included assessment of the bladder pattern, the urinary WBC's, the implementation of a scheduled toileting program, pelvic floor exercises, and the administration of Vitamin C 500 mg. by mouth. Functional Independent Measure (FIM) scores and urinary white blood cells (WBC's) were used to evaluate the efficacy the guidelines. Post guideline implementation FIM scores and urinary WBC's demonstrated improvement over the pre-scores. These results indicate that positive stroke outcomes were achieved following implementation. In addition, the ID team, comprised of nurses, physical therapists, speech pathologists, and occupational therapists, was queried as to the member's knowledge and perceptions of their roles in the implementation of the guidelines. Highlighted themes from the ID focus groups were communication and structure, relating that the guidelines were useful in promoting collaborative practice among the ID team members. [source]


    Hospital Charges Attributable to a Primary Diagnosis of Infectious Diseases in Older Adults in the United States, 1998 to 2004

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 6 2008
    Aaron T. Curns MPH
    OBJECTIVES: To describe total and average hospital charges associated with infectious disease (ID) hospitalizations and specific ID categories and to estimate ID hospitalization rates in adults aged 65 and older in the United States from 1998 through 2004. DESIGN: Retrospective analysis of hospital discharge data obtained from the Nationwide Inpatient Sample for 1998 through 2004. SETTING: United States. PATIENTS: Older adults hospitalized in the United States from 1998 through 2004. MEASUREMENTS: Hospital charges and hospitalization rates for IDs described according to year, age group, sex, U.S. Census region, and ID category. Charges for non-ID hospitalizations were also described. Hospital charges were adjusted for inflation. RESULTS: From 1998 through 2004, total charges for ID hospitalizations exceeded $261 billion and accounted for 13% of all hospital charges for older adults. Total charges for ID hospitalizations increased from $31.4 billion in 1998 to $45.7 billion in 2004. The average annual ID hospital charge was lower than the average annual non-ID hospital charge during the study period ($21,342 vs $22,787, P<.001). The average annual rate for ID hospitalizations was 503 per 10,000 older adults, which remained stable during the study period. CONCLUSION: The total charges for ID hospitalizations and for all hospitalizations in older adults in the United States increased 45% and nearly 40%, respectively, during the 7-year study period, whereas the population of older adults grew by only 5%. Sustained increases of such magnitude will have major implications for the U.S. healthcare system as it prepares for the more than doubling of the older U.S. adult population during the first 30 years of this century. [source]


    Anatomics: the intersection of anatomy and bioinformatics

    JOURNAL OF ANATOMY, Issue 1 2005
    Jonathan B. L. Bard
    Abstract Computational resources are now using the tissue names of the major model organisms so that tissue-associated data can be archived in and retrieved from databases on the basis of developing and adult anatomy. For this to be done, the set of tissues in that organism (its anatome) has to be organized in a way that is computer-comprehensible. Indeed, such formalization is a necessary part of what is becoming known as systems biology, in which explanations of high-level biological phenomena are not only sought in terms of lower-level events, but are articulated within a computational framework. Lists of tissue names alone, however, turn out to be inadequate for this formalization because tissue organization is essentially hierarchical and thus cannot easily be put into tables, the natural format of relational databases. The solution now adopted is to organize the anatomy of each organism as a hierarchy of tissue names and linking relationships (e.g. the tibia is PART OF the leg, the tibia IS-A bone) within what are known as ontologies. In these, a unique ID is assigned to each tissue and this can be used within, for example, gene-expression databases to link data to tissue organization, and also used to query other data sources (interoperability), while inferences about the anatomy can be made within the ontology on the basis of the relationships. There are now about 15 such anatomical ontologies, many of which are linked to organism databases; these ontologies are now publicly available at the Open Biological Ontologies website (http://obo.sourceforge.net) from where they can be freely downloaded and viewed using standard tools. This review considers how anatomy is formalized within ontologies, together with the problems that have had to be solved for this to be done. It is suggested that the appropriate term for the analysis, computer formulation and use of the anatome is anatomics. [source]


    Inter-Rater Reliability of the Diagnoses of Psychosis and Depression in Individuals with Intellectual Disabilities

    JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 5 2007
    S. Einfeld
    Background, There is a history of over-prescription of antipsychotics to individuals with intellectual disability (ID), while antidepressants may be under-prescribed. However, appropriate treatment is best supported when the diagnosis of psychosis or depression is valid and carries good predictive validity. The present authors report a study examining one aspect of validity, namely whether skilled clinicians can agree on whether an individual with an ID is psychotic or depressed. Materials and Methods, Pairs of clinicians assessed 52 individuals. Agreement was assessed using Cohen's kappa statistic and agreement proportion. Results, Overall agreement was high for both psychosis and depression. Whether the individual had mild ID or moderate/severe ID did not have a significant impact on agreement. Conclusions, Experienced clinicians achieved a high level of agreement as to whether a person with ID was psychotic or depressed similar to that found for those without ID. The findings provide some support for treatment interventions based on diagnosis. [source]


    The Influence of Anger-arousal Level on Attribution of Hostile Intent and Problem Solving Capability in an Individual with a Mild Intellectual Disability and a History of Difficulties with Aggression

    JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 1 2006
    Kenneth M. A. MacMahon
    Background, Recent studies have suggested that cognitive biases may play an important mediating role in aggressive outbursts from people with mild intellectual disabilities (IDs). Essentially, some individuals may frequently perceive other people as acting towards them in a hostile fashion. This biased perception may develop through repeated adverse experiences, and may make them more likely to respond, likewise, in an aggressive manner. These studies have led to the development of a cognitive behavioural model of aggression, incorporating factors both intrinsic and extrinsic to the individual. This study aimed to explore one facet of this model: a putative relationship between anger-arousal level, problem-solving ability and perception of hostile intent in others. Method, Single-case methodology was utilized, and a 44-year-old man with a mild ID and a history of difficulties with aggression participated. A series of vignettes, containing potentially provocative social interactions, were read to the participant. His perception of hostile intent, and suggestions of possible behavioural responses were recorded as dependent variables. Anger-arousal was manipulated, through autobiographical recall, as a dependent variable. Results, Although not conclusive, results indicate that anger-arousal may act in an interactive fashion to increase perception of hostile intent. No effect of anger-arousal was observed on problem-solving ability; however, floor-effects in the task used may provide an explanation for this. Conclusions, A high level of anger-arousal may exacerbate the probability of a frequently aggressive individual perceiving others as acting in a hostile manner. However, future research should take the limitations of this study into account, and continue development of a cognitive model of frequent aggression in those with a mild ID. [source]


    Mental Health and Social Care Needs of Older People with Intellectual Disabilities

    JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 3 2005
    Andre Strydom
    Background, Older people with intellectual disabilities (ID) are a growing population but their age-related needs are rarely considered and community services are still geared towards the younger age group. We aimed to examine the mental health and social care needs of this new service user group. Methods, We identified all adults with ID without Down syndrome (DS) aged 65+ living in the London boroughs of Camden and Islington. The Psychiatric Assessment Schedule for Adults with a Developmental Disability (PASADD) checklist was used to detect psychiatric disorder, the Vineland behaviour scale (maladaptive domain) for problem behaviours and the Dementia Questionnaire for persons with Mental Retardation (DMR) to screen for dementia. Carers reported health problems and disability. Needs were measured with the Camberwell Assessment of Need for adults with Intellectual Disabilities (CANDID-S). Results, A total of 23 older people with ID (13 had mild ID and nine more severe ID) and their carers participated in the survey. In which, 74% had one or more psychiatric symptoms; 30% were previously known with a diagnosis of mental illness. One-third of the older people screened positive for dementia (range: 17,44%, depending on sensitivity of DMR scores used). Three quarters of the group had physical health problems, 74% had poor sight, 22% had hearing loss and 30% had mobility problems. Carers rated unmet needs for accommodation (22%), day activities, and eyesight and hearing. The people with ID rated unmet needs to be social relationships (44%), information and physical health. Conclusion, Older people with ID without DS have considerable prevalence of health problems and psychiatric disorders, including symptoms of functional decline and dementia. Such symptoms are often not recognised and further research into their needs is a priority. [source]


    Effects of Four Therapy Procedures on Communication in People with Profound Intellectual Disabilities

    JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 2 2001
    William R. Lindsay
    A number of alternative therapies have recently been employed with people who have intellectual disabilities (IDs). The present study examines the effects of four frequently used therapies on the communication of people with profound ID. Communication was assessed using five measures of positive communication and five measures of negative communication. The therapies assessed were Snoezelen, active therapy, relaxation and aromatherapy/hand massage. There were eight participants in the present study and each received all four of the therapeutic procedures in a counterbalanced design. Treatment procedures were videotaped at sessions 5, 10, 15 and 20, and later scored for defined measures of communication. Both Snoezelen and relaxation increased the level of positive communication and had some effect on decreasing negative communication. However, active therapy and aromatherapy/hand massage had little or no effect on communication. The lack of a no-treatment control is noted, especially in the light of trends seen at baseline. Considering the lack of generalization of therapeutic effects, the present results should be treated with caution. [source]


    Comparison of manual and automated ELISA methods for serum ferritin analysis

    JOURNAL OF CLINICAL LABORATORY ANALYSIS, Issue 5 2005
    Fabian Rohner
    Abstract Serum ferritin concentration is a sensitive measure of body iron stores. The aim of this study was to compare the performance of two commercially available enzyme-linked immunoassays (ELISAs) for serum ferritin: a widely used manual assay kit (Spectro Ferritin MT®), and a new fully automated assay (Immulite®). We analyzed serum samples from Moroccan school-aged children (n=51) from a rural area with a high prevalence of iron deficiency anemia (IDA). Four replicates of each sample were analyzed using both assays. For the manual method, the interassay repeatability was 24%, 22%, and 11%, and intraassay precision was 18.3%, 9.2%, and 9.1% at increasing serum ferritin concentrations. Using the automated assay, the interassay repeatability was 7%, 6%, and 6%, and intraassay precision was 1.5%, 5.4%, and 5.5% at increasing serum ferritin concentrations. The two assays were well correlated (y=1.16x+1.83; r=0.98). However, the limits of agreement (LOAs) were wide, particularly at low concentrations. A comparison of the assay results with recommended cutoffs for serum ferritin generated sharply different estimates of the prevalence of iron deficiency (ID) in the sample. We conclude that the automated assay has several potential advantages compared to the manual method, including better precision, less operator dependence, and faster sample through-put. J. Clin. Lab. Anal. 19:196,198, 2005. © 2005 Wiley-Liss, Inc. [source]


    Evaluation of a new automated enzyme fluoroimmunoassay using recombinant plasmid dsDNA for the detection of anti-dsDNA antibodies in SLE

    JOURNAL OF CLINICAL LABORATORY ANALYSIS, Issue 5 2002
    D. Villalta
    Abstract ELISA methods to detect anti-double-stranded DNA (anti-dsDNA) antibodies are highly sensitive, but are less specific for the diagnosis of SLE than the immunofluorescence test on Crithidia luciliae (CLIFT) and the Farr assay because they also detect low-avidity antibodies. This study evaluated the specificity, sensitivity, positive predictive value (PPV), and negative predictive value (NPV) of a new automated fluoroimmunoassay (EliA dsDNA; Pharmacia, Freiburg, Germany). We compared the results with those obtained using a commercial CLIFT and an in-house anti-dsDNA IgG ELISA method, and verified its putative ability to detect only high-avidity anti-dsDNA antibodies. Sera from 100 SLE patients and 120 controls were studied. The control group included 20 healthy donors, 70 patients with other rheumatic diseases (32 systemic sclerosis (SSc); 18 primary Sjögren syndrome (pSS), 20 rheumatoid arthritis (RA)), and 30 patients with various infectious diseases (ID). Anti-dsDNA avidity was estimated using an ELISA method based upon the law of mass action, and a simplified Scatchard plot analysis for data elaboration; the apparent affinity constant (Kaa) was calculated and expressed as arbitrary units (L/U). Sensitivity, specificity, PPV, and NPV for SLE were 64%, 95.8%, 93.8% and 72.7%, respectively, for the EliA anti-dsDNA assay; 55%, 99.2%, 98.5%, and 68.8%, respectively, for the CLIFT; and 64%, 93.3%, 90.6%, and 72.3%, respectively, for the in-house ELISA. Although EliA anti-dsDNA was positive mainly in SLE patients with high- (Kaa>80 L/U) and intermediate- (Kaa 30,80 L/U) avidity antibodies (45.3% and 49.9%, respectively), it was also positive in five (7.8%) SLE patients with low-avidity anti-dsDNA antibodies, and five controls (three SSc, one pSS, and one ID) (mean Kaa = 16.4 ± 9.04 L/U). In conclusion, EliA anti-dsDNA assay showed a higher sensitivity than the CLIFT, and a good specificity and PPV for SLE. Its putative ability to detect only high-avidity anti-dsDNA antibodies remains questionable. J. Clin. Lab. Anal. 16:227,232, 2002. © 2002 Wiley-Liss, Inc. [source]