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Comparison of Estimated Glomerular Filtration Rate by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) Equations with and without Cystatin C for Predicting Clinical Outcomes in Elderly Women  

PubMed Central

Background Reduced estimated glomerular filtration rate (eGFR) using the cystatin-C derived equations might be a better predictor of cardiovascular disease (CVD) mortality compared with the creatinine-derived equations, but this association remains unclear in elderly individuals. Aim The aims of this study were to compare the predictive values of the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)-creatinine, CKD-EPI-cystatin C and CKD-EPI-creatinine-cystatin C eGFR equations for all-cause mortality and CVD events (hospitalizations±mortality). Methods Prospective cohort study of 1165 elderly women aged>70 years. Associations between eGFR and outcomes were examined using Cox regression analysis. Test accuracy of eGFR equations for predicting outcomes was examined using Receiver Operating Characteristic (ROC) analysis and net reclassification improvement (NRI). Results Risk of all-cause mortality for every incremental reduction in eGFR determined using CKD-EPI-creatinine, CKD-EPI-cystatin C and the CKD-EPI-creatinine-cystatic C equations was similar. Areas under the ROC curves of CKD-EPI-creatinine, CKD-EPI-cystatin C and CKD-EPI-creatinine-cystatin C equations for all-cause mortality were 0.604 (95%CI 0.561–0.647), 0.606 (95%CI 0.563–0.649; p?=?0.963) and 0.606 (95%CI 0.563–0.649; p?=?0.894) respectively. For all-cause mortality, there was no improvement in the reclassification of eGFR categories using the CKD-EPI-cystatin C (NRI -4.1%; p?=?0.401) and CKD-EPI-creatinine-cystatin C (NRI -1.2%; p?=?0.748) compared with CKD-EPI-creatinine equation. Similar findings were observed for CVD events. Conclusion eGFR derived from CKD-EPI cystatin C and CKD-EPI creatinine-cystatin C equations did not improve the accuracy or predictive ability for clinical events compared to CKD-EPI-creatinine equation in this cohort of elderly women. PMID:25265151

Turner, Robin M.; Lim, Ee M.; Thompson, Peter L.; Prince, Richard L.



Comparison of the CKD Epidemiology Collaboration (CKD-EPI) and Modification of Diet in Renal Disease (MDRD) Study Equations: Prevalence of and Risk Factors for Diabetes Mellitus in CKD in the Kidney Early Evaluation Program (KEEP)  

PubMed Central

Background Diabetes is a leading cause of chronic kidney disease (CKD). Whether reclassification of CKD stages based on glomerular filtration rate estimated using the CKD Epidemiology Collaboration (CKD-EPI) equation versus the Modification of Diet in Renal Disease (MDRD) Study equation modifies estimates of prevalent risk factors across stages is unknown. Methods This is a cross-sectional analysis of data from the Kidney Early Evaluation Program (KEEP), a community-based health screening program targeting individuals 18 years and older with diabetes, hypertension, or a family history of diabetes, hypertension, or kidney disease. Of 109,055 participants, 68.2% were women and 31.8% were African American. Mean age was 55.3 ± 0.05 years. Clinical, demographic, and laboratory data were collected from August 2000 through December 2009. Glomerular filtration rate was estimated using the CKD-EPI and MDRD Study equations. Results CKD was present in 25.6% and 23.5% of the study population using the MDRD Study and CKD-EPI equations, respectively. Diabetes was present in 42.4% and 43.8% of participants with CKD, respectively. Prevalent risk factors for diabetes included obesity (body mass index >30 kg/m2), 44.0%; hypertension, 80.5%; cardiovascular disease, 23.2%; family history of diabetes, 55.9%; and dyslipidemia, 43.0%. In a logistic regression model after adjusting for age and other risk factors, odds for diabetes increased significantly compared with no CKD with each CKD stage based on the CKD-EPI equation and similarly with stages based on the MDRD Study equation. Using a CKD-EPI–adjusted model, ORs were: stage 1, 2.08 (95% CI, 1.90–2.27); stage 2, 1.86 (95% CI, 1.72–2.02); stage 3, 1.23 (95% CI, 1.17–1.30); stage 4, 1.69 (95% CI, 1.42–2.03); and stage 5, 2.46 (95% CI, 1.46–4.14). Conclusions Using the CKD-EPI equation led to a lower prevalence of CKD but to similar diabetes prevalence rates associated with CKD across all stages compared with the MDRD Study equation. Diabetes and other CKD risk factor prevalence was increased compared with the non-CKD population. PMID:21338847

McFarlane, Samy I.; McCullough, Peter A.; Sowers, James R.; Soe, Kyaw; Chen, Shu-Cheng; Li, Suying; Vassalotti, Joseph A.; Stevens, Lesley A.; Salifu, Moro O.; Tamura, Manjula Kurella; Bomback, Andrew S.; Norris, Keith C.; Collins, Allan J.; Bakris, George L.; Whaley-Connell, Adam T.



A New Modified CKD-EPI Equation for Chinese Patients with Type 2 Diabetes  

PubMed Central

Objective To improve the performance of glomerular filtration rate (GFR) estimating equation in Chinese type 2 diabetic patients by modification of the CKD-EPI equation. Design and patients A total of 1196 subjects were enrolled. Measured GFR was calibrated to the dual plasma sample 99mTc-DTPA-GFR. GFRs estimated by the re-expressed 4-variable MDRD equation, the CKD-EPI equation and the Asian modified CKD-EPI equation were compared in 351 diabetic/non-diabetic pairs. And a new modified CKD-EPI equation was reconstructed in a total of 589 type 2 diabetic patients. Results In terms of both precision and accuracy, GFR estimating equations all achieved better results in the non-diabetic cohort comparing with those in the type 2 diabetic cohort (30% accuracy, P?0.01 for all comparisons). In the validation data set, the new modified equation showed less bias (median difference, 2.3 ml/min/1.73 m2 for the new modified equation vs. ranged from ?3.8 to ?7.9 ml/min/1.73 m2 for the other 3 equations [P<0.001 for all comparisons]), as was precision (IQR of the difference, 24.5 ml/min/1.73 m2 vs. ranged from 27.3 to 30.7 ml/min/1.73 m2), leading to a greater accuracy (30% accuracy, 71.4% vs. 55.2% for the re-expressed 4 variable MDRD equation and 61.0% for the Asian modified CKD-EPI equation [P?=?0.001 and P?=?0.02]). Conclusion A new modified CKD-EPI equation for type 2 diabetic patients was developed and validated. The new modified equation improves the performance of GFR estimation. PMID:25313918

Chen, Jinxia; Lv, Linsheng; Li, Ming; Lou, Tanqi



Associations of blood lead with estimated glomerular filtration rate using MDRD, CKD-EPI and serum cystatin C-based equations  

PubMed Central

Background. Low-level lead exposure is widespread and has been implicated as a chronic kidney disease (CKD) risk factor. However, studies evaluating associations of lead dose with newer, potentially more accurate, estimates of kidney function, in participants with a wide range of glomerular filtration rates (GFRs), are scarce. Methods. We compared associations of blood lead and estimated glomerular filtration rate (eGFR) using the Modification of Diet in Renal Disease (MDRD), Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) and cystatin C single variable, multivariable and combined creatinine/cystatin C equations in 3941 adults who participated in the 1999–2002 National Health and Nutrition Examination Survey cystatin C subsample. Results. Geometric mean blood lead was 1.7 ?g/dL. After multivariable adjustment, differences [95% confidence interval (CI)] in mean eGFR for a doubling of blood lead were ?1.9 (?3.2, ?0.7), ?1.7 (?3.0, ?0.5) and ?1.4 (?2.3, ?0.5) mL/min/1.73 m2, using the cystatin C single variable, multivariable and combined creatinine/cystatin C equations, respectively, reflecting lower eGFR with increased blood lead. The corresponding differences (95% CI) were ?0.9 (?1.9, 0.02) and ?0.9 (?1.8, 0.01) using the creatinine-based MDRD and CKD-EPI equations, respectively. In participants aged ?60 years, differences in mean eGFR ranged from ?3.0 to ?4.5 mL/min/1.73 m2, and odds of reduced eGFR (<60 mL/min/1.73 m2) were increased for all estimates of GFR. Conclusions. These results support the inclusion of cystatin C-based eGFR in future lead research and provide additional evidence for environmental lead exposure as a CKD risk factor. PMID:21248295

Spector, June T.; Navas-Acien, Ana; Fadrowski, Jeffrey; Guallar, Eliseo; Jaar, Bernard



Proteinuria, 99mTc-DTPA Scintigraphy, Creatinine-, Cystatin- and Combined-Based Equations in the Assessment of Chronic Kidney Disease  

PubMed Central

Background. Precise estimation of the glomerular filtration rate (GFR) and the identification of markers of progression are important. We compared creatinine, cystatin, and combined CKD-EPI equations with 99mTc-DTPA scintigraphy to measure GFR and proteinuria as markers of progression. Methods. Cross-sectional, observational study including 300 subjects. CKD was classified by 99mTc-DTPA scintigraphy. Determinations. Creatinine, 24-hour creatinine clearance, cystatin, Hoek formula, and creatinine, cystatin, and combined CKD-EPI equations. Results. In the global assessment, creatinine CKD-EPI and combined CKD-EPI equations yielded the highest correlations with 99mTc-DTPA: ? = 0.839, P < 0.0001 and ? = 0.831, P < 0.0001. Intergroup analysis versus 99mTc-DTPA: control G, creatinine clearance ? = 0.414, P = 0.013; G3, combined CKD-EPI ? = 0.5317, P < 0.0001; G4, Hoek ? = 0.618, P < 0.0001, combined CKD-EPI ? = 0.4638, P < 0.0001; and G5, creatinine clearance ? = 0.5414, P < 0.0001, combined CKD-EPI ? = 0.5288, P < 0.0001. In the global assessment, proteinuria displayed the highest significant correlations with cystatin (? = 0.5433, P < 0.0001) and cystatin-based equations (Hoek: ? = ?0.5309, P < 0.0001). When GFR < 60?mL/min: in stage 3, proteinuria-cystatin (? = 0.4341, P < 0.0001); proteinuria-Hoek (? = ?0.4105, P < 0.0001); in stage 4, proteinuria-cystatin (? = 0.4877, P < 0.0001); proteinuria-Hoek (? = ?0.4877, P = 0.0026). Conclusions. At every stage of GFR < 60?mL/min, cystatin-based equations displayed better correlations with 99mTc-DTPA. Proteinuria and cystatin-based equations showed strong associations and high degrees of correlation. PMID:24977136

Trimarchi, Hernán; Muryan, Alexis; Toscano, Agostina; Martino, Diana; Forrester, Mariano; Pomeranz, Vanesa; Lombi, Fernando; Young, Pablo; Raña, María Soledad; Karl, Alejandra; Alonso, M.; Dicugno, Mariana; Fitzsimons, Clara



Symmetrical Dimethylarginine Outperforms CKD-EPI and MDRD-Derived eGFR for the Assessment of Renal Function in Patients with Adult Congenital Heart Disease  

Microsoft Academic Search

Background\\/Aims: Adults with congenital heart disease exhibit a 3-fold higher mortality in the presence of chronic kidney disease, hence assessment of renal function is crucial in this patient population. Formulas for the estimation of glomerular filtration rate (GFR) have not been evaluated in this patient population. Therefore, this study compares different markers and equations for the estimation of renal function

Oktay Tutarel; Agnieszka Denecke; Stefanie M. Bode-Böger; Jens Martens-Lobenhoffer; Bernhard Schieffer; Mechthild Westhoff-Bleck; Jan T. Kielstein



Can cystatin C become an easy and reliable tool for anesthesiologists to calculate glomerular filtration rate?  

PubMed Central

Background and Aims: The aim was to evaluate the role of cystatin C as a noninvasive and easy marker of glomerular filtration rate (GFR) estimation in voluntary kidney donors. Materials and Methods: We retrospectively evaluated 40 voluntary kidney donors. They underwent complete biochemical and nuclear tests as a part of transplant workup. Serum cystatin C, serum creatinine, and Tc-99m diethylene-triamine-penta-acetic acid (DTPA) were used in our study. We calculated GFR using the chronic kidney disease epidemiology collaboration (CKD-EPI) formula based on creatinine only (GFR-CKD-EPI-creat), CKD-EPI formula using creatinine and cystatin C (GFR-CKD-EPI-cyst-creat), and modification of diet in renal disease (MDRD) and CKD-EPI cystatin C equation (2012) (GFR-cyst). Data was evaluated using the SPSS software (version 11.5). The correlation analysis and analysis of variance was used for statistical computation. Agreement was determined using analyze-it version 2.30 for MS-Excel 12+. Results: The mean age of the donors in our study was 49.83 ± 13.06. The mean cystatin C in females was 0.72 ± 0.12, the mean cystain C in males was 0.87 ± 0.23. On correlating GFR-cyst with GFR-DTPA the Pearson correlation coefficient (?) was found to be 0.388 this correlation was significant with P < 0.05. While comparing with DTPA the correlation coefficient of GFR-CKD-EPI-creat group was 0.587 which was significant with P < 0.01. The correlation coefficient of GFR-CKD-EPI-cyst-creat group compared with GFR-DTPA group was 0.543 which was also significant at P < 0.001. GFR-CKD-EPI-creat gave the highest correlation with DTPA in our study. The correlation coefficient of GFR-MDRD group with DTPA group was 0.576 this correlation was also significant with P < 0.01. The results obtained were further statistically analyzed by Bland-Altman analysis the percentage error for GFR-DTPA versus GFR-cyst-creat is 29.72%; for GFR-DTPA versus GFR-EPI-creat is 30.73%; or GFR-DTPA versus MDRD is 31.63% and for GFR-DTPA versus GFR-cyst is 34.37%. Conclusion: Cystatin C is a good endogenous marker for calculating GFR as it correlates very well with DTPA and CKD-EPI equation based GFR. PMID:25788772

Aulakh, Navpreet Kaur; Bansal, Ekta; Bose, Abhishek; Aulakh, Gurmehar Singh; Aulakh, Baldev Singh; Singh, Mirley Rupinder



[Estimation of the glomerular filtration rate in 2014 by tests and equations: strengths and weaknesses].  


The accurate estimation of the glomerular filtration rate (GFR) is a goal of multiple interests regarding clinical, research and public health aspects. The strong relationship between progressive loss of renal function and mortality underlines the need for early diagnosis and close follow-up of renal diseases. Creatinine is the commonest biomarker of GFR in use. By reason of non-renal determinants of GFR, it is required to integrate creatinine values within equations that take in account its most important determinants (i.e., age, sex). The CKD-EPI 2009 equation is now recommended as the first line equation to estimate GFR within the general population. In this indication, it should replace MDRD that tends to overestimate the prevalence of stage 3 chronic kidney disease with GFR around 60 ml/min. However, many questions remain about the accuracy of GFR equations in specific situations such as extremes of age or body weight. The identification of new biomarkers, less determined by non-renal determinants, is of importance. Among these biomarkers, cystatin-C is more accurate to estimate GFR when it is combined to creatinine (i.e., equation CKD-EPI 2012). However the indica. tions for using cystatin-C instead of creatinine alone are still unclear and its use remains limited in routine practice. In conclusion, neither biomarker nor equation gives an accurate estimation for the whole range of GFR and for all patient populations. Limits of prediction are relying on both biomarker's properties and the range of GFR that is concerned, but also rely on the measurement methods. Therefore, it is crucial to interpret the estimated GFR according to the strengths and weaknesses of the equation in use. PMID:25675627

Hougardy, J M; Delanaye, P; Le Moine, A; Nortier, J



Multicenter Study of Creatinine- and/or Cystatin C-Based Equations for Estimation of Glomerular Filtration Rates in Chinese Patients with Chronic Kidney Disease  

PubMed Central

Objective To establish equations for the estimation of glomerular filtration rates (eGFRs) based on serum creatinine (SCr) and/or serum cystatin C (SCysC) in Chinese patients with chronic kidney disease (CKD), and to compare the new equations with both the reference GFR (rGFR) and the literature equations to evaluate their applicability. Methods The 788 Chinese CKD patients were randomly divided into two groups, the training group and the testing group, to establish new eGFR-formulas based on serum CysC and to validate the established formulas, respectively. 99mTc-DTPA clearance (as the rGFR), serum Cr, and serum CysC were determined for all patients, and GFR was calculated using the Cockcroft-Gault equation (eGFR1), the MDRD formula (eGFR2), the CKD-EPI formulas (eGFR3, eGFR4), and the Chinese eGFR Investigation Collaboration formulas (eGFR5, eGFR6). The accuracy of each eGFR was compared with the rGFR. Results The training and testing groups' mean GFRs were 50.84±31.36 mL/min/1.73 m2 and 54.16±29.45 mL/min/1.73 m2, respectively. The two newly developed eGFR formulas were fitted using iterative computation: and . Significant correlation was observed between each eGFR and the rGFR. However, proportional errors and constant errors were observed between rGFR and eGFR1, eGFR2, eGFR4, eGFR5 or eGFR6, and constant errors were observed between eGFR3 and rGFR, as revealed by the Passing & Bablok plot analysis. The Bland-Altman analysis illustrated that the 95% limits of agreement of all equations exceeded the previously accepted limits of <60 mL/min •1.73 m2, except the equations of eGFR7 and eGFR8. Conclusion The newly developed formulas, eGFR7 and eGFR8, provide precise and accurate GFR estimation using serum CysC detection alone or in combination with serum Cr detection. Differences in detection methods should be carefully considered when choosing literature eGFR equations to avoid misdiagnosis and mistreatment. PMID:23526939

Zhang, Lin; Li, Xue-mei; Yang, Yu-wei; Zeng, Ping; Guo, Xiu-zhi; Qin, Yan; Liu, Hong-chun; Han, Xing-min; Li, Yan-peng; Xu, Wei; Sun, Shu-yan; Wang, Li-qiang; Quan, Hui; Xia, Li-jun; Hu, Hong-zhang; Zhong, Fang-cai; Duan, Rong



Cystatin C-Based Renal Function Changes After Antiretroviral Initiation: A Substudy of a Randomized Trial  

PubMed Central

Background. ?The effects of antiretrovirals on cystatin C-based renal function estimates are unknown. Methods. ?We analyzed changes in renal function using creatinine and cystatin C-based estimating equations in 269 patients in A5224s, a substudy of study A5202, in which treatment-naive patients were randomized to abacavir/lamivudine or tenofovir/emtricitabine with open-label atazanavir/ritonavir or efavirenz. Results. ?Changes in renal function significantly improved (or declined less) with abacavir/lamivudine treatment compared with tenofovir/emtricitabine using the Cockcroft-Gault formula (P = .016) and 2009 Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI; P = .030) and 2012 CKD-EPI cystatin C-creatinine (P = .025). Renal function changes significantly improved (or declined less) with efavirenz compared with atazanavir/ritonavir (P < .001 for all equations). Mean (95% confidence interval) renal function changes specifically for tenofovir/emtricitabine combined with atazanavir/ritonavir were ?8.3 (?14.0, ?2.6) mL/min with Cockcroft-Gault; ?14.9 (?19.7, ?10.1) mL/min per 1.732 with Modification of Diet in Renal Disease; ?12.8 (?16.5, ?9.0) mL/min per 1.732 with 2009 CKD-EPI; +8.9 (4.2, 13.7) mL/min per 1.732 with 2012 CKD-EPI cystatin C; and ?1.2 (?5.1, 2.6) mL/min per 1.732 with 2012 CKD-EPI cystatin C-creatinine. Renal function changes for the other treatment arms were more favorable but similarly varied by estimating equation. Conclusions. ?Antiretroviral-associated changes in renal function vary in magnitude and direction based on the estimating equation used. PMID:25734077

Gupta, Samir K.; Kitch, Douglas; Tierney, Camlin; Daar, Eric S.; Sax, Paul E.; Melbourne, Kathleen; Ha, Belinda; McComsey, Grace A.



Chronic kidney diseases in mixed ancestry south African populations: prevalence, determinants and concordance between kidney function estimators  

PubMed Central

Background Population-based data on the burden of chronic kidney disease (CKD) in sub-Saharan Africa is still very limited. We assessed the prevalence and determinants of CKD, and evaluated the concordance of commonly advocated estimators of glomerular filtration rate (eGFR) in a mixed ancestry population from South Africa. Methods Participants were a population-based sample of adults selected from the Bellville-South community in the metropolitan city of Cape Town. eGFR was based on the Cockroft-Gault (CG), Modification of Diet in Kidney Disease (MDRD) and CKD Epidemiology Collaboration (CKD-EPI) equations (with and without adjustment for ethnicity). Kidney function staging used the Kidney Disease Outcome Quality Initiative (KDOQI) classification. Logistic regressions and kappa statistic were used to investigate determinants of CKD and assess the agreement between different estimators. Results The crude prevalence of CKD stage 3–5 was 14.8% for Cockcroft-Gault, 7.6% and 23.9% respectively for the MDRD with and without ethnicity correction, and 7.4% and 17.3% for the CKD-EPI equations with and without ethnicity correction. The highest agreement between GFR estimators was between MDRD and CKD-EPI equations, both with ethnicity correction, Kappa 0.91 (95% CI: 0.86-0.95), correlation coefficient 0.95 (95% CI: 0.94-0.96). In multivariable logistic regression models, sex, age and known hypertension were consistently associated with CKD stage 3–5 across the 5 estimators. Conclusions The prevalence of CKD stages greater than 3 is the highest reported in Africa. This study provides evidence for support of the CKD-EPI equation for eGFR reporting and CKD classification. PMID:23547953



Structure properties of one-mode collaboration network model based on rate equation approach  

NASA Astrophysics Data System (ADS)

The rate equation approach is very useful to describe the dynamic structure property of collaboration network, especially in calculating the node degree distribution and the joint degree distribution, and considering the correlation of node degrees. In this paper, we referee the two-mode collaboration network model (RDP), and translate it into one-mode RDP model. By the rate-equation approach, we study the node degree distribution in the one-mode RDP model (RDP) with numerical simulations verifying the feasibility of the model. It is proved that the node degree distribution of the model is a right-skewed power-law like distribution with the exponent ? in interval (1,3]. For the large enough node degree k, it can be proved that the node degree distribution is approximately power-law distribution. The joint degree distribution are also got by utilizing rate-equation approach and the node degree distribution. Through the joint degree distribution, we find that the correlation relationship of node degrees is nontrivial correlation relationship among the degrees of connected nodes that formed by spontaneously. Finally we get the clustering coefficient of the RDP model by calculating the mathematical expectation of degree distribution.

Wang, Long; Ma, Yinghong



Renal dosing in high-risk populations.  


In patients with diminished kidney function, the pharmacokinetics of many medications are altered. Alterations in absorption, distribution, and metabolism are observed in addition to altered elimination through the kidney. Classes of intravenous medications in which dose modifications are frequently required for patients with diminished kidney function include antibiotics, some anticoagulants, and chemotherapy agents. Failure to follow renal dose adjustment recommendations can lead to an increased risk of toxicity. Equations frequently used to estimate kidney function for the purpose of making renal dose adjustments include the Cockcroft-Gault, Modification of Diet in Renal Disease (MDRD), and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations. PMID:25871868

Nyman, Heather A



The Chronic Kidney Disease Epidemiology Collaboration (CKDEPI) equation best characterizes kidney function in patients being considered for lung transplantation  

PubMed Central

BACKGROUND Methods for direct measurement of glomerular filtration rate (GFR) are expensive and inconsistently applied across transplant centers. The Modified Diet in Renal Disease (MDRD) equation is commonly used for GFR estimation, but is inaccurate for GFRs > 60 ml/min per 1.73 m2. The Chronic Kidney Disease Epidemiology Collaboration (CKDEPI) and Wright equations have shown improved predictive capabilities in some patient populations. We compared these equations to determine which one correlates best with direct GFR measurement in lung transplant candidates. METHODS We conducted a retrospective cohort analysis of 274 lung transplant recipients. Pre-operative GFR was measured directly using a radionuclide GFR assay. Results from the MDRD, CKDEPI, Wright, and Cockroft–Gault equations were compared with direct measurement. Findings were validated using logistic regression models and receiver operating characteristic (ROC) analyses in looking at GFR as a predictor of mortality and renal function outcomes post-transplant. RESULTS Assessed against the radionuclide GFR measurement, CKDEPI provided the most consistent results, with low values for bias (0.78), relative standard error (0.03) and mean absolute percentage error (15.02). Greater deviation from radionuclide GFR was observed for all other equations. Pearson’s correlation between radionuclide and calculated GFR was significant for all equations. Regression and ROC analyses revealed equivalent utility of the radionuclide assay and GFR equations for predicting post-transplant acute kidney injury and chronic kidney disease (p < 0.05). CONCLUSIONS In patients being evaluated for lung transplantation, CKDEPI correlates closely with direct radionuclide GFR measurement and equivalently predicts post-operative renal outcomes. Transplant centers could consider replacing or supplementing direct GFR measurement with less expensive, more convenient estimation by using the CKDEPI equation. PMID:25107351

Osho, Asishana A.; Castleberry, Anthony W.; Snyder, Laurie D.; Palmer, Scott M.; Stafford-Smith, Mark; Lin, Shu S.; Davis, R. Duane; Hartwig, Matthew G.



Kidney Function, Endothelial Activation and Atherosclerosis in Black and White Africans with Rheumatoid Arthritis  

PubMed Central

Objective To determine whether kidney function independently relates to endothelial activation and ultrasound determined carotid atherosclerosis in black and white Africans with rheumatoid arthritis (RA). Methods We calculated the Jelliffe, 5 Cockcroft-Gault equations, Salazar-Corcoran, Modification of Diet in Renal Disease (MDRD) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) estimated glomerular filtration rate (EGFR) equations in 233 (112 black) RA patients. Results The CKD-EPI eGFR was <90 ml/min/1.73m2 in 49.1% and 30.6% of black and white patients, respectively (odds ratio (95% confidence interval) = 2.19 (1.28–3.75), p = 0.004). EGFRs were overall consistently associated with monocyte chemoattractant protein-1 and angiopoietin 2 concentrations in white patients, and with carotid intima-media thickness and plaque in black participants. Amongst black patients, plaque prevalence was 36.7% and the area under the curve (AUC) of the receiver operating characteristic (ROC) curve was not associated with plaque presence for the MDRD equation (p = 0.3), whereas the respective relationship was significant or borderline significant (p = 0.003 to 0.08) and of similar extent (p>0.1 for comparisons of AUC (SE)) for the other 8 equations. Based on optimal eGFR cutoff values with sensitivities and specificities ranging from 42 to 60% and 70 to 91% respectively, as determined in ROC curve analysis, a low eGFR increased the odds ratio for plaque 2.2 to 4.0 fold. Conclusion Reduced kidney function is independently associated with atherosclerosis and endothelial activation in black and white Africans with RA, respectively. CKD is highly prevalent in black Africans with RA. Apart from the MDRD, eGFR equations are useful in predicting carotid plaque presence, a coronary heart disease equivalent, amongst black African RA patients. PMID:25806966

Dessein, Patrick H.; Hsu, Hon-Chun; Tsang, Linda; Millen, Aletta M. E.; Woodiwiss, Angela J.; Norton, Gavin R.; Solomon, Ahmed; Gonzalez-Gay, Miguel A.



A Collaboration on Collaboration  

NASA Technical Reports Server (NTRS)

NASA's 2003-2004 Leadership Development Program class recognized that effective collaborations are often the key to achieving mission success. Personal connections and common goals were key elements of their work together and key findings of their collaboration benchmarking within the agency.

Cobleigh, Brent



Collaboration ‘Engineerability’  

Microsoft Academic Search

Collaboration Engineering is an approach to create sustained collaboration support by designing collaborative work practices\\u000a for high-value recurring tasks, and transferring those designs to practitioners to execute for themselves without ongoing\\u000a support from collaboration professionals. A key assumption in this approach is that we can predictably design collaboration\\u000a processes. In this paper we explore this assumption to understand whether collaboration

Gwendolyn L. Kolfschoten; Gert-Jan de Vreede; Robert O. Briggs; Henk G. Sol



Collaborative Learning.  

ERIC Educational Resources Information Center

Descriptions of 10 college programs involving collaborative learning are presented, along with Karen T. Romer's essay, "Collaboration: New Forms of Learning, New Ways of Thinking." The essay identifies various kinds of collaborative learning as well as the benefits of collaborative models. The following programs and schools are described: the…

Levy-Reiner, Sherry, Ed.



Collaborative Attack vs. Collaborative Defense  

NASA Astrophysics Data System (ADS)

We have witnessed many attacks in the cyberspace. However, most attacks are launched by individual attackers even though an attack may involve many compromised computers. In this paper, we envision what we believe to be the next generation cyber attacks — collaborative attacks. Collaborative attacks can be launched by multiple attackers (i.e., human attackers or criminal organizations), each of which may have some specialized expertise. This is possible because cyber attacks can become very sophisticated and specialization of attack expertise naturally becomes relevant. To counter collaborative attacks, we might need collaborative defense because each “chain” in a collaborative attack may be only adequately dealt with by a different defender. In order to understand collaborative attack and collaborative defense, we present a high-level abstracted framework for evaluating the effectiveness of collaborative defense against collaborative attacks. As a first step towards realizing and instantiating the framework, we explore a characterization of collaborative attacks and collaborative defense from the relevant perspectives.

Xu, Shouhuai


Industry Collaborations

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Collaborative Arrangements.  

ERIC Educational Resources Information Center

Two conference papers describing various collaborative arrangements within the educational community among teachers, students and others are presented in this document. The first paper, "Successful Collaborations" (Eugene Cota-Robles), describes the following projects in California that seek to forge collaborations to improve the education of…

Cota-Robles, Eugene; Doby, Winston


Collaboration Connections  

ERIC Educational Resources Information Center

Of all the buzz words used in the school library media profession, "collaboration" evokes the strongest feelings--and not all of those feelings are positive. Some library media specialists are not convinced that collaboration is an essential part of their programs, yet collaboration seems to be essential in many other professions. In fact, there…

Harvey, Carl A., II



Collaborative Learning.  

ERIC Educational Resources Information Center

In order to encourage instructors interested in collaborative classroom approaches, the College of Continuing Education at the University of Rhode Island sponsored a series of workshops and informal discussions. A telephone survey of faculty was undertaken to learn the ways they were using collaborative approaches in their courses. (MLW)

Sheridan, Jean; And Others



Industry Collaboration

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ALICE Collaboration  

NASA Astrophysics Data System (ADS)

The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex.

Abelev, B.; Adam, J.; Adamová, D.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agostinelli, A.; Agrawal, N.; Ahammed, Z.; Ahmad, N.; Ahmed, I.; Ahn, S. U.; Ahn, S. A.; Aimo, I.; Aiola, S.; Ajaz, M.; Akindinov, A.; Alam, S. N.; Aleksandrov, D.; Alessandro, B.; Alexandre, D.; Alici, A.; Alkin, A.; Alme, J.; Alt, T.; Altinpinar, S.; Altsybeev, I.; Alves Garcia Prado, C.; Andrei, C.; Andronic, A.; Anguelov, V.; Anielski, J.; Anti?i?, T.; Antinori, F.; Antonioli, P.; Aphecetche, L.; Appelshäuser, H.; Arcelli, S.; Armesto, N.; Arnaldi, R.; Aronsson, T.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Awes, T. C.; Azmi, M. D.; Bach, M.; Badalà, A.; Baek, Y. W.; Bagnasco, S.; Bailhache, R.; Bala, R.; Baldisseri, A.; Baltasar Dos Santos Pedrosa, F.; Baral, R. C.; Barbera, R.; Barile, F.; Barnaföldi, G. G.; Barnby, L. S.; Barret, V.; Bartke, J.; Basile, M.; Bastid, N.; Basu, S.; Bathen, B.; Batigne, G.; Batista Camejo, A.; Batyunya, B.; Batzing, P. C.; Baumann, C.; Bearden, I. G.; Beck, H.; Bedda, C.; Behera, N. K.; Belikov, I.; Bellini, F.; Bellwied, R.; Belmont, R.; Belmont-Moreno, E.; Belyaev, V.; Bencedi, G.; Beole, S.; Berceanu, I.; Bercuci, A.; Berdnikov, Y.; Berenyi, D.; Berger, M. E.; Bertens, R. A.; Berzano, D.; Betev, L.; Bhasin, A.; Bhat, I. R.; Bhati, A. K.; Bhattacharjee, B.; Bhom, J.; Bianchi, L.; Bianchi, N.; Bianchin, C.; Biel?ík, J.; Biel?íková, J.; Bilandzic, A.; Bjelogrlic, S.; Blanco, F.; Blau, D.; Blume, C.; Bock, F.; Bogdanov, A.; Bøggild, H.; Bogolyubsky, M.; Böhmer, F. V.; Boldizsár, L.; Bombara, M.; Book, J.; Borel, H.; Borissov, A.; Bossú, F.; Botje, M.; Botta, E.; Böttger, S.; Braun-Munzinger, P.; Bregant, M.; Breitner, T.; Broker, T. A.; Browning, T. A.; Broz, M.; Bruna, E.; Bruno, G. E.; Budnikov, D.; Buesching, H.; Bufalino, S.; Buncic, P.; Busch, O.; Buthelezi, Z.; Caffarri, D.; Cai, X.; Caines, H.; Calero Diaz, L.; Caliva, A.; Calvo Villar, E.; Camerini, P.; Carena, F.; Carena, W.; Castillo Castellanos, J.; Casula, E. A. R.; Catanescu, V.; Cavicchioli, C.; Ceballos Sanchez, C.; Cepila, J.; Cerello, P.; Chang, B.; Chapeland, S.; Charvet, J. L.; Chattopadhyay, S.; Chattopadhyay, S.; Chelnokov, V.; Cherney, M.; Cheshkov, C.; Cheynis, B.; Chibante Barroso, V.; Chinellato, D. D.; Chochula, P.; Chojnacki, M.; Choudhury, S.; Christakoglou, P.; Christensen, C. H.; Christiansen, P.; Chujo, T.; Chung, S. U.; Cicalo, C.; Cifarelli, L.; Cindolo, F.; Cleymans, J.; Colamaria, F.; Colella, D.; Collu, A.; Colocci, M.; Conesa Balbastre, G.; Conesa del Valle, Z.; Connors, M. E.; Contreras, J. G.; Cormier, T. M.; Corrales Morales, Y.; Cortese, P.; Cortés Maldonado, I.; Cosentino, M. R.; Costa, F.; Crochet, P.; Cruz Albino, R.; Cuautle, E.; Cunqueiro, L.; Dainese, A.; Danu, A.; Das, D.; Das, I.; Das, K.; Das, S.; Dash, A.; Dash, S.; De, S.; Delagrange, H.; Deloff, A.; Dénes, E.; D'Erasmo, G.; De Caro, A.; de Cataldo, G.; de Cuveland, J.; De Falco, A.; De Gruttola, D.; De Marco, N.; De Pasquale, S.; de Rooij, R.; Diaz Corchero, M. A.; Dietel, T.; Dillenseger, P.; Divià, R.; Di Bari, D.; Di Liberto, S.; Di Mauro, A.; Di Nezza, P.; Djuvsland, Ø.; Dobrin, A.; Dobrowolski, T.; Domenicis Gimenez, D.; Dönigus, B.; Dordic, O.; Dørheim, S.; Dubey, A. K.; Dubla, A.; Ducroux, L.; Dupieux, P.; Dutta Majumdar, A. K.; Hilden, T. E.; Ehlers, R. J.; Elia, D.; Engel, H.; Erazmus, B.; Erdal, H. A.; Eschweiler, D.; Espagnon, B.; Esposito, M.; Estienne, M.; Esumi, S.; Evans, D.; Evdokimov, S.; Fabris, D.; Faivre, J.; Falchieri, D.; Fantoni, A.; Fasel, M.; Fehlker, D.; Feldkamp, L.; Felea, D.; Feliciello, A.; Feofilov, G.; Ferencei, J.; Fernández Téllez, A.; Ferreiro, E. G.; Ferretti, A.; Festanti, A.; Figiel, J.; Figueredo, M. A. S.; Filchagin, S.; Finogeev, D.; Fionda, F. M.; Fiore, E. M.; Floratos, E.; Floris, M.; Foertsch, S.; Foka, P.; Fokin, S.; Fragiacomo, E.; Francescon, A.; Frankenfeld, U.; Fuchs, U.; Furget, C.; Furs, A.; Fusco Girard, M.; Gaardhøje, J. J.; Gagliardi, M.; Gago, A. M.; Gallio, M.; Gangadharan, D. R.; Ganoti, P.; Gao, C.; Garabatos, C.; Garcia-Solis, E.; Gargiulo, C.; Garishvili, I.; Gerhard, J.; Germain, M.; Gheata, A.; Gheata, M.; Ghidini, B.; Ghosh, P.; Ghosh, S. K.; Gianotti, P.; Giubellino, P.; Gladysz-Dziadus, E.; Glässel, P.; Gomez Ramirez, A.; González-Zamora, P.; Gorbunov, S.; Görlich, L.; Gotovac, S.; Graczykowski, L. K.; Grelli, A.; Grigoras, A.; Grigoras, C.; Grigoriev, V.; Grigoryan, A.; Grigoryan, S.; Grinyov, B.; Grion, N.; Grosse-Oetringhaus, J. F.; Grossiord, J.-Y.; Grosso, R.; Guber, F.; Guernane, R.; Guerzoni, B.; Guilbaud, M.; Gulbrandsen, K.; Gulkanyan, H.; Gumbo, M.; Gunji, T.; Gupta, A.; Gupta, R.; Khan, K. H.; Haake, R.; Haaland, Ø.; Hadjidakis, C.; Haiduc, M.; Hamagaki, H.; Hamar, G.



Collaborative Spaces  

ERIC Educational Resources Information Center

When architects discuss the educational facilities of the next century and beyond, the conversation turns to collaborative spaces. They envision flexible and fluid spaces that will encourage creative and critical thinking, and free students to communicate clearly about the task at hand. While these are admirable ideals, there are some fundamental…

Lippman, Peter C.



Collaborative Design  

ERIC Educational Resources Information Center

This practitioner research study investigates the power of multimodal texts within a real-world context and argues that a participatory culture focused on literary arts offers marginalized high school students opportunities for collaborative design and authoring. Additionally, this article invites educators to rethink the at-risk label. This…

Broderick, Debora



Industry Collaboration

The goal of the Cancer Therapy Evaluation Program (CTEP) is to facilitate the process of bringing promising, novel, investigational anticancer and anti-HIV agents to the public as quickly and as safely as possible. CTEP offers a unique combination of resources and expertise to assist an Industry Collaborator in clinical development of new therapeutic agents and the ability to evaluate investigational agents in a wide variety of tumor types and disease settings.


Observatory Collaboration  

E-print Network

USA 1 J.M. Anaya, T.J. Bowles, S.J. Brice, Ernst­Ingo Esch, M.M. Fowler, Azriel Goldschmidt, 5 A. HimeThe Sudbury Neutrino Observatory The SNO Collaboration J. Boger, R.L. Hahn, J.K. Rowley Chemistry Carleton University, Ottawa, Ontario K1S 5B6 CANADA 2 I. Blevis, F. Dalnoki­Veress, A. DeKok, J. Farine, 3

Waltham, Chris


Calibration and precision of serum creatinine and plasma cystatin C measurement: impact on the estimation of glomerular filtration rate.  


Serum creatinine (SCr) is the main variable for estimating glomerular filtration rate (GFR). Due to inter-assay differences, the prevalence of chronic kidney disease (CKD) varies according to the assay used, and calibration standardization is necessary. For SCr, isotope dilution mass spectrometry (IDMS) is the gold standard. Systematic differences are observed between Jaffe and enzymatic methods. Manufacturers subtract 0.30 mg/dl from Jaffe results to match enzymatic results ('compensated Jaffe method'). The analytical performance of enzymatic methods is superior to that of Jaffe methods. In the original Modification of Diet in Renal Disease (MDRD) equation, SCr was measured by a Jaffe Beckman assay, which was later recalibrated. A limitation of this equation was an underestimation of GFR in the high range. The Chronic Kidney Disease Epidemiology (CKD-EPI) consortium proposed an equation using calibrated and IDMS traceable SCr. The gain in performance was due to improving the bias whereas the precision was comparable. The CKD-EPI equation performs better at high GFR levels (GFR >60 ml/min/1.73 m(2)). Analytical limitations have led to the recommendation to give a grade (>60 ml/min/1.73 m(2)) rather than an absolute value with the MDRD equation. By using both enzymatic and calibrated methods, this cutoff-grade could be increased to 90 ml/min/1.73 m(2) (with MDRD) and 120 ml/min/1.73 m(2) (with CKD-EPI). The superiority of the CKD-EPI equation over MDRD is analytical, but the precision gain is limited. IDMS traceable enzymatic methods have been used in the development of the Lund-Malmö (in CKD populations) and Berlin Initiative Study equations (in the elderly). The analytical errors for cystatin C are grossly comparable to issues found with SCr. Standardization is available since 2011. A reference method for cystatin C is still lacking. Equations based on standardized cystatin C or cystatin C and creatinine have been proposed. The better performance of these equations (especially the combined CKD-EPI equation) has been demonstrated. PMID:24711159

Delanaye, Pierre; Cavalier, Etienne; Cristol, Jean-Paul; Delanghe, Joris R



Reliability of estimated glomerular filtration rate in patients treated with platinum containing therapy.  


Estimates of glomerular filtration rate (eGFR) are widely used when administering nephrotoxic chemotherapy. No studies performed in oncology patients have shown whether eGFR can safely substitute a measured GFR (mGFR) based on a marker method. We aimed to assess the validity of four major formulas based on PCr (Cockcroft-Gault, MDRD, Wright and CKD-EPI) in comparison to mGFR in an oncology setting. Patients included had disseminated germ cell cancer and received conventional chemotherapy: bleomycin, etoposide and cisplatin. The mGFR of the patients was compared to all estimates with focus on bias (median percentage error), precision (median absolute percentage error) and accuracy (p10 and p30). The precision of carboplatin dosage based on eGFR was calculated. Data on mGFR, eGFR, and PCr were available in 390 patients, with a total of ? 1,600 measurements. Median PCr and mGFR synchronically decreased after chemotherapy, yielding high bias and low precision of most estimates. Post-chemotherapy, bias ranged from -0.2% (MDRD after four cycles) to 33.8% (CKD-EPI after five cycles+), precision ranged from 11.6% (MDRD after four cycles) to 33.8% (CKD-EPI after five cycles+) and accuracy (p30) ranged from 37.5% (CKD-EPI after five cycles+) to 86.9% (MDRD after four cycles). Although MDRD appeared acceptable after chemotherapy because of high accuracy, this equation underestimated GFR in all other measurements. Before and years after treatment, Cockcroft-Gault and Wright offered best results. Precision of carboplatin dosage was low. In conclusion, bias, precision and accuracy were unacceptable in all equations due to a synchronous decrease of PCr and mGFR during chemotherapy. PMID:24585507

Lauritsen, Jakob; Gundgaard, Maria G; Mortensen, Mette S; Oturai, Peter S; Feldt-Rasmussen, Bo; Daugaard, Gedske



Using Collaborative Engineering to Inform Collaboration Engineering  

NASA Technical Reports Server (NTRS)

Collaboration is a critical competency for modern organizations as they struggle to compete in an increasingly complex, global environment. A large body of research on collaboration in the workplace focuses both on teams, investigating how groups use teamwork to perform their task work, and on the use of information systems to support team processes ("collaboration engineering"). This research essay presents collaboration from an engineering perspective ("collaborative engineering"). It uses examples from professional and student engineering teams to illustrate key differences in collaborative versus collaboration engineering and investigates how challenges in the former can inform opportunities for the latter.

Cooper, Lynne P.



Collaborative Understanding of Cyanobacteria in Lake Ecosystems  

ERIC Educational Resources Information Center

We describe a collaboration between mathematicians and ecologists studying the cyanobacterium "Gloeotrichia echinulata" and its possible role in eutrophication of New England lakes. The mathematics includes compartmental modeling, differential equations, difference equations, and testing models against high-frequency data. The ecology…

Greer, Meredith L.; Ewing, Holly A.; Cottingham, Kathryn L.; Weathers, Kathleen C.



Prevalence, determinants, and management of chronic kidney disease in Karachi, Pakistan - a community based cross-sectional study  

PubMed Central

Background Chronic kidney disease (CKD) is increasing being recognized as a global public health problem. However, there is dearth of information on the prevalence, determinants, and management of CKD from low- and middle-income countries. The objectives of the study were to determine the 1) prevalence of CKD; 2) socio-demographic and clinical factors associated with CKD; and 3) the existing management of these patients with regards to blood pressure control, and use of antihypertensive medications. Methods We conducted a cross-sectional study on 2873 participants aged ?40 years in 12 representative communities in Karachi, Pakistan. The primary outcome was clinically significant CKD defined as estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2 estimated by CKD-EPI (CKD Epidemiology Collaboration) Pakistan equation (0.686?×?CKD-EPI1.059) or urinary albumin to creatinine ratio ?3 mg/mmol (i.e. KDOQI CKD stage G3, A2 or worse). Results The overall prevalence (95% CI) of CKD was 12.5% (11.4 – 13.8%). The factors independently associated with CKD were older age, hypertension, diabetes, elevated systolic blood pressure, raised fasting plasma glucose, raised triglycerides, and history of stroke (p?



Collaboration rules.  


Corporate leaders seeking to boost growth, learning, and innovation may find the answer in a surprising place: the Linux open-source software community. Linux is developed by an essentially volunteer, self-organizing community of thousands of programmers. Most leaders would sell their grandmothers for workforces that collaborate as efficiently, frictionlessly, and creatively as the self-styled Linux hackers. But Linux is software, and software is hardly a model for mainstream business. The authors have, nonetheless, found surprising parallels between the anarchistic, caffeinated, hirsute world of Linux hackers and the disciplined, tea-sipping, clean-cut world of Toyota engineering. Specifically, Toyota and Linux operate by rules that blend the self-organizing advantages of markets with the low transaction costs of hierarchies. In place of markets' cash and contracts and hierarchies' authority are rules about how individuals and groups work together (with rigorous discipline); how they communicate (widely and with granularity); and how leaders guide them toward a common goal (through example). Those rules, augmented by simple communication technologies and a lack of legal barriers to sharing information, create rich common knowledge, the ability to organize teams modularly, extraordinary motivation, and high levels of trust, which radically lowers transaction costs. Low transaction costs, in turn, make it profitable for organizations to perform more and smaller transactions--and so increase the pace and flexibility typical of high-performance organizations. Once the system achieves critical mass, it feeds on itself. The larger the system, the more broadly shared the knowledge, language, and work style. The greater individuals' reputational capital, the louder the applause and the stronger the motivation. The success of Linux is evidence of the power of that virtuous circle. Toyota's success is evidence that it is also powerful in conventional companies. PMID:16028820

Evans, Philip; Wolf, Bob



Collaborative Systems Testing  

ERIC Educational Resources Information Center

Collaborative systems are widely used today in various activity fields. Their complexity is high and the development involves numerous resources and costs. Testing collaborative systems has a very important role for the systems' success. In this paper we present taxonomy of collaborative systems. The collaborative systems are classified in many…

Pocatilu, Paul; Ciurea, Cristian



Network Collaboration with UNIX.  

ERIC Educational Resources Information Center

Discusses networking as a collaboration tool in the teaching of technical writing. Argues that some degree of collaboration is innate to all writing, that word processing already facilitates that collaboration, and that networking is the next enhancement to the collaborative process. (RS)

Horn, Wm. Dennis



Burgers' Equation Burgers' equation  

E-print Network

Burgers' Equation Burgers' equation ut + uux = uxx is the simplest PDE that models the more complicated Navier-Stokes equa- tions (viscous fluid dynamics, boundary layers, etc.). The inviscid Burgers of ideal gas dynamics (shock and rarefaction waves). The inviscid Burgers' equation ut + uux = 0

Gardner, Carl


Regional Research Collaborations  

E-print Network

Assistant Vice President for Research (Animal Care), Kansas State University Contract Staffing PartnershipsRegional Research Collaborations Merrill Series on The Research Mission of Public Universities at Birmingham Regional Neuroscience Research Collaboration: The Alabama Experience Panel 1: Research


Theme: Collaborative Relationships.  

ERIC Educational Resources Information Center

Seven articles present models for collaboration between business and education, agriscience and extension, agribusiness and agricultural education, as well as a collaborative waterfowl refuge project and the political process and public relations. (SK)

Briers, Gary E.; And Others



Studies in scientific collaboration  

Microsoft Academic Search

From a historical and sociological perspective, this essay presents and develops the first comprehensive theory of scientific collaboration: collaborative scientific research, formally acknowledged by co-authorships of scientific papers, originated, developed, and continues to be practiced as a response to the professionalization of science. Following an overview of the origins and early history of collaboration in the 17th and 18th centuries,

D. deB Beaver; R. Rosen



Experiences of Collaborative Research  

ERIC Educational Resources Information Center

The author's personal history of the research that led to his recognition in economics is described, focusing on the process of collaboration and on the experience of controversy. The author's collaboration with Amos Tversky dealt with 3 major topics: judgment under uncertainty, decision making, and framing effects. A subsequent collaboration,…

Kahneman, Daniel



Writing: A Collaboration.  

ERIC Educational Resources Information Center

Noting that while collaborative writing is commonplace in the "real" world it is seldom practiced in classrooms, the articles in this focused journal explore the place of collaboration in the writing process and the ways in which collaboration can be fostered in an instructional setting. Following an introduction by the editor, which describes…

Fleming, Margaret, Ed.



Collaboration in Art Education.  

ERIC Educational Resources Information Center

Educators are familiar with working together to produce curriculum packages, to team teach a unit, to host a parent event, to put on a school-wide concert, or to plan a conference. Collaboration in art education as presented in this publication is a team effort that is slightly different and beyond ordinary collaboration. Collaborative art-making…

McCoubrey, Sharon, Ed.



Ethics of international collaboration  

PubMed Central

Education and research together are vital components of academic institutions and globalization has improved health care education and research in numerous ways, one of which is multinational/transnational research/international collaboration. Usually academic institutions of high-income countries and institutions in low-income countries participate in collaboration. These collaborative research are guided by international ethics codes proposed by the international ethics committee to avoid stringent follow/unethical practices. PMID:25709946

Mandal, Jharna; Dinoop, KP; Parija, Subhash Chandra



Doing Collaborative Learning (CL)  

NSDL National Science Digital Library

This website focuses on the practical aspects of collaborative learning in the classroom. The author explains how collaborative learning should be implemented, including course structure and objectives. Other topics include creating goals, incorporating student goals so they "buy into" this teaching style, evaluation issues, creating groups and the roles within the groups, the new roles the students and the instructor face, and some ideas on group dynamics. Also covered are enhanced lectures, several collaborative learning structures, and risks associated with implementing collaborative learning structures into the classroom.

National Institute for Science Education


Online Collaboration: Two Models.  

ERIC Educational Resources Information Center

This paper describes two collaborative projects conducted with graduate students from Texas A&M University-Commerce and West Texas A&M University during the fall semesters of 1997 and 1998. The instructors, with a history of personal collaboration both in person and online, designed an activity to provide their graduate students with the…

Espinoza, Sue; McKinzie, LeAnn


Toward Collaboration Sensing  

ERIC Educational Resources Information Center

We describe preliminary applications of network analysis techniques to eye-tracking data collected during a collaborative learning activity. This paper makes three contributions: first, we visualize collaborative eye-tracking data as networks, where the nodes of the graph represent fixations and edges represent saccades. We found that those…

Schneider, Bertrand; Pea, Roy



Michael Schrage and Collaboration.  

ERIC Educational Resources Information Center

MIT research associate and Merrill Lynch Fellow Michael Schrage believes collaboration provides opportunities for research and understanding which could never be realized by individuals working alone. This article presents highlights of his discussion of collaboration at the 1998 Mid-Year Meeting of the American Society for Information Science in…

Hardin, Steve R.



Collaborative Reasoning about Stories.  

ERIC Educational Resources Information Center

Describes a discussion format called Collaborative Reasoning, part of a literature-based reading program in which students discuss a central question about a story they have read. Discusses the background of Collaborative Reasoning, its discussion framework, and instructional moves that support the development of reasoning. Notes the high rate of…

Waggoner, Martha; And Others



Studies in scientific collaboration  

Microsoft Academic Search

This essay investigates a number of the predictions of the theoretical view of scientific collaboration as a response to the professionalization of science: (1) that collaboration is most typically practiced by the scientific elite, or those who aspire to it, (2) that it increases individual research productivity, and (3) that it enhances the visibility of research to the larger scientific

D. B. de Beaver; R. Rosen



Collaboration: Assumed or Taught?  

ERIC Educational Resources Information Center

The relationship between collaboration and gifted and talented students often is assumed to be an easy and successful learning experience. However, the transition from working alone to working with others necessitates an understanding of issues related to ability, sociability, and mobility. Collaboration has been identified as both an asset and a…

Kaplan, Sandra N.



ICSN - Collaborative Projects

The ICSN is dedicated to collaborative research aimed at identifying and fostering efficient and effective approaches to cancer control worldwide through population-based screening mammography. ICSN members have worked together to evaluate cancer screening and improve outcomes through collaborative projects or working groups focused on targeted data research, collection, and assessment that result in best practices recommendations.


The Excitement of Collaboration.  

ERIC Educational Resources Information Center

Describes the project called "U2U," a collaboration among the University of Minnesota School of Music, The University of Minnesota dance department, and two urban public school districts in Minneapolis-St. Paul (Minnesota). Presents strategies for collaboratively developing an interdisciplinary curriculum around William Walton's "Facade." Includes…

McCoy, Claire W.



Collaborative Learning: Research Simulator  

Microsoft Academic Search

What: This paper reports on the results of participative action research by multiple teams of participants who played various roles and fostered the evolution of an integrated research and business simulation environment by sharing data, making decisions visible and discussing solutions in both a competitive and a collaborative environment. Why: Collaborative Networked Learning is needed for the training of effective

Kewal S. Dhariwal



Curriculum-Based Collaboration.  

ERIC Educational Resources Information Center

This article presents a teacher collaboration model called curriculum-based collaboration (CBC), which utilizes the differing expertise and perspectives of general and special education teachers. CBC includes several steps: (1) identify key content; (2) hold a planning meeting; (3) deliver instruction; (4) conduct an interim assessment; (5)…

Nolet, Victor; Tindal, Gerald



Jump-Start Collaboration  

ERIC Educational Resources Information Center

When teachers and school librarians work together, student achievement increases. Librarians know this and have made sure their teachers and administrators know this as well. But it's a giant leap from knowing the value of collaboration and actually collaborating. The only way to convince teachers to take that step is to convince them that the…

Lohmiller, Darcy



School-Community Collaboration.  

ERIC Educational Resources Information Center

Collaborations between schools and parents, and schools and other institutions, seek to improve or expand available resources. This issue of "Focus in Change" focuses on two elementary schools with different models of collaboration in place. At Columbia Park Elementary School (Maryland) parents have been involved in site-based management teams…

Focus in Change, 1991



Electronic Collaboration Logbook  

NASA Astrophysics Data System (ADS)

In HEP, scientific research is performed by large collaborations of organizations and individuals. The logbook of a scientific collaboration is an important part of the collaboration record. Often it contains experimental data. At Fermi National Accelerator Laboratory (FNAL), we developed an Electronic Collaboration Logbook (ECL) application, which is used by about 20 different collaborations, experiments and groups at FNAL. The ECL is the latest iteration of the project formerly known as the Control Room Logbook (CRL). We have been working on mobile (IOS and Android) clients for the ECL. We will present the history, current status and future plans of the project, as well as design, implementation and support solutions made by the project.

Gysin, Suzanne; Mandrichenko, Igor; Podstavkov, Vladimir; Vittone, Margherita



Collaboration With the Pharmaceutical Industry  

NSDL National Science Digital Library

A powerpoint presentation file from the EB 2007 Careers Symposium - Guide for Successful Collaboration: From the Handshake to the Collaborative Research Agreement a presentation on the why, what, and how of industry collaborations.

PhD Stephen A Douglas (GlaxoSmithKline)



Collaboration With the Pharmaceutical Industry  

NSDL National Science Digital Library

A recorded presentation from the EB 2007 Careers Symposium - Guide for Successful Collaboration: From the Handshake to the Collaborative Research Agreement a presentation on the why, what, and how of industry collaborations.

PhD Stephen A Douglas (GlaxoSmithKline)



Distributed Augmented Reality for Collaborative  

E-print Network

Distributed Augmented Reality for Collaborative Design Applications Klaus H. Ahlers, Andr´e Kramer, Maastricht, NL, 1995) Distributed Augmented Reality for Collaborative Design Applications Klaus H. Ahlers a system for constructing collaborative design applications based on distributed augmented reality

Tuceryan, Mihran


Male sex and vascular risk factors affect cystatin C-derived renal function in older people without diabetes or overt vascular disease  

PubMed Central

Background/objectives: to explore the effect of ageing on renal function with cystatin C as the marker of glomerular filtration rate (GFR) in the general population without vascular disease or diabetes. Design: a cross-sectional analysis of a healthy subset from the Good Aging in Skåne-cohort study representative of the Swedish general population. Subjects: 1252 participants without vascular disease and diabetes (43.9% men) of whom 203 were over 80 years old were included from the original cohort of 2931. Methods: plasma cystatin C and plasma creatinine were used as markers for GFR. Estimated GFR (eGFR) was calculated with three chronic kidney disease epidemiology collaboration (CKD-EPI) formulas involving cystatin C, creatinine or both. Results: the median for plasma cystatin C was 0.93 mg/l (60–69 years old), 1.04 (70–79 years old) and 1.24 (80+ years old). The difference in mg/l between the 5th and 95th percentile was 0.46, 0.62 and 0.90 for these age groups. Male sex increased the age effect on plasma cystatin C levels with 0.004 mg/l/year (P = 0.03), adjusted for vascular risk factors. Smoking, lower HDL and higher diastolic blood pressure were associated with higher cystatin C levels. 54.7% (CKD-EPI creatinine) to 73.9% (CKD-EPI cystatin C) of the 80+ had an eGFR < 60 ml/min/1.73 m2. Conclusion: non-diabetics without overt vascular disease exhibit an age related but heterogeneous decline in renal function. The ageing effect is more pronounced in men. At least half of healthy 80+ years old could be expected to have at least CKD Stage 3 with eGFR < 60 ml/min/1.73 m2. PMID:24321840

Werner, Karin Birgitta; Elmståhl, Sölve; Christensson, Anders; Pihlsgård, Mats



Collaborations: Challenging, but Key  

SciTech Connect

Collaborations are becoming increasing important in biology because of the need to apply multiple technologies to tackle the most complex current problems. The U.S. National Institutes of Health recognizes this need, and has created the “multi-investigator” granting mechanism to facilitate this process. I have reviewed a number of proposals that utilize the multi-investigator mechanism and have generally found them to be superior to individual investigator grants. Setting up a good collaboration, however, can be extremely difficult. Like any relationship, collaborations take time and energy. Still, there is nothing that can accelerate your research faster or expand your intellectual horizons more.

Wiley, H. S.



In Search of Collaboration.  

ERIC Educational Resources Information Center

Describes an interdisciplinary research effort being undertaken by the University of Dayton (Ohio) to identify successful diocesan models of educational collaboration, focusing on San Jose, California; Indianapolis, Indiana; Covington, Kentucky; Toledo, Ohio; and Erie, Pennsylvania. (DMM)

Rizvi, Teri



Global Research Collaborations  

E-print Network

.........................................................................................70 Associate Dean for Research and Graduate Education, University of Kansas Medical Center ........................................................................................77 Vice Chancellor for Research, University of Kansas Medical Center International Medicali Global Research Collaborations Merrill Series on The Research Mission


Melbourne Collaborative Cohort Study

The Melbourne Collaborative Cohort Study is a longitudinal study established in the 1990s by Cancer Council Victoria to investigate prospectively the role of diet and other lifestyle factors in cancer.


US International Stellarator Collaboration  

NASA Astrophysics Data System (ADS)

The US program is using international collaboration to stay at the forefront of experimental stellarator science. The LHD is the premier operating stellarator in the world. The US recently installed an X-ray Imaging Crystal Spectrometer on LHD to aid in the measurement of Ti profiles in difficult plasma regimes - e. g., RF operations, high density, and low density (N. Pablant, this conf.). An effort is underway to develop equilibrium reconstruction for stellarators (S. Lazerson, and A. Sontag this conf.). Results from experiments on the MHD stability of high performance regimes observed on LHD will be presented. The US is also collaborates with W7-X. The collaboration theme on W7-X is divertor heat-flux management. Collaborations on hardware include trim coils, diagnostics (G. Wurden, this conf.), and PFCs (J. Harris, this conf.). Active control that involves real-time equilibrium control and temperature monitoring will be discussed.

Gates, D. A.; Bitter, M.; Canik, J.; Geiger, J.; Goto, M.; Harris, J. H.; Hill, K. W.; Lazerson, S.; Lore, J.; Monticello, D.; Narushima, Y.; Neilson, G. H.; Pablant, N.; Pomphrey, N.; Reiman, A.; Sakakibara, S.; Sontag, A.; Werner, A.; Wolf, R.; Wurden, G. A.



California Geothermal Energy Collaborative  

E-print Network

the quality of life in California by bringing environmentally safe, affordable, and reliable energy services Research · Energy Systems Integration · Environmentally Preferred Advanced Generation · Industrial/Agricultural/Water California Geothermal Energy Collaborative Geothermal Education and Outreach Guide


Serum cystatin C predicts vancomycin trough levels better than serum creatinine in hospitalized patients: a cohort study  

PubMed Central

Introduction Serum cystatin C can improve glomerular filtration rate (GFR) estimation over creatinine alone, but whether this translates into clinically relevant improvements in drug dosing is unclear. Methods This prospective cohort study enrolled adults receiving scheduled intravenous vancomycin while hospitalized at the Mayo Clinic in 2012. Vancomycin dosing was based on weight, serum creatinine with the Cockcroft-Gault equation, and clinical judgment. Cystatin C was later assayed from the stored serum used for the creatinine-based dosing. Vancomycin trough prediction models were developed by using factors available at therapy initiation. Residuals from each model were used to predict the proportion of patients who would have achieved the target trough with the model compared with that observed with usual care. Results Of 173 patients enrolled, only 35 (20%) had a trough vancomycin level within their target range (10 to 15 mg/L or 15 to 20 mg/L). Cystatin C-inclusive models better predicted vancomycin troughs than models based upon serum creatinine alone, although both were an improvement over usual care. The optimal model used estimated GFR by the Chronic Kidney Disease Epidemiology Collaborative (CKD-EPI) creatinine-cystatin C equation (R2?=?0.580). This model is expected to yield 54% (95% confidence interval 45% to 61%) target trough attainment (P <0.001 compared with the 20% with usual care). Conclusions Vancomycin dosing based on standard care with Cockcroft-Gault creatinine clearance yielded poor trough achievement. The developed dosing model with estimated GFR from CKD-EPIcreatinine-cystatin C could yield a 2.5-fold increase in target trough achievement compared with current clinical practice. Although this study is promising, prospective validation of this or similar cystatin C-inclusive dosing models is warranted. PMID:24887089



Equation Games!  

NSDL National Science Digital Library

Several sites to practice solving equations. Play one of the following games: 1) algebra quiz/ alien millionaire 2) Battleship: solve equations to win! 3) connect four: solve equations to take a turn- 2 player game 4) Rags to Riches: millionaire type game asking questions about solving equations ...

Ms. Troff



Equation Solver  

NSDL National Science Digital Library

This activity helps you understand how to balance an equation. You input the term and the operation. The activity uses that term and operates on both sides of the equation. It then displays the resulting equation. Equation Solver is one of the Interactivate assessment explorers.


Distance collaborations with industry  

SciTech Connect

The college industry relationship has been identified as a key policy issue in Engineering Education. Collaborations between academic institutions and the industrial sector have a long history and a bright future. For Engineering and Engineering Technology programs in particular, industry has played a crucial role in many areas including advisement, financial support, and practical training of both faculty and students. Among the most important and intimate interactions are collaborative projects and formal cooperative education arrangements. Most recently, such collaborations have taken on a new dimension, as advances in technology have made possible meaningful technical collaboration at a distance. There are several obvious technology areas that have contributed significantly to this trend. Foremost is the ubiquitous presence of the Internet. Perhaps almost as important are advances in computer based imaging. Because visual images offer a compelling user experience, it affords greater knowledge transfer efficiency than other modes of delivery. Furthermore, the quality of the image appears to have a strongly correlated effect on insight. A good visualization facility offers both a means for communication and a shared information space for the subjects, which are among the essential features of both peer collaboration and distance learning.

Peskin, A.; Swyler, K.



Securing collaborative environments  

SciTech Connect

The diverse set of organizations and software components involved in a typical collaboratory make providing a seamless security solution difficult. In addition, the users need support for a broad range of frequency and locations for access to the collaboratory. A collaboratory security solution needs to be robust enough to ensure that valid participants are not denied access because of its failure. There are many tools that can be applied to the task of securing collaborative environments and these include public key infrastructure, secure sockets layer, Kerberos, virtual and real private networks, grid security infrastructure, and username/password. A combination of these mechanisms can provide effective secure collaboration capabilities. In this paper, we discuss the requirements of typical collaboratories and some proposals for applying various security mechanisms to collaborative environments.

Agarwal, Deborah; Jackson, Keith; Thompson, Mary



The collaboration imperative.  


Addressing global sustainability challenges--including climate change, resource depletion, and ecosystem loss--is beyond the individual capabilities of even the largest companies. To tackle these threats, and unleash new value, companies and other stakeholders must collaborate in new ways that treat fragile and complex ecosystems as a whole. In this article, the authors draw on cases including the Latin American Water Funds Partnership, the Sustainable Apparel Coalition (led by Nike, Patagonia, and Walmart), and Action to Accelerate Recycling (a partnership between Alcoa, consumer packaged goods companies, and local governments, among others) to describe four new collaboration models that create shared value and address environmental protection across the value stream. Optimal collaborations focus on improving either business processes or outcomes. They start with a small group of key organizations, bring in project management expertise, link self-interest to shared interest, encourage productive competition, create quick wins, and, above all, build and maintain trust. PMID:24830283

Nidumolu, Ram; Ellison, Jib; Whalen, John; Billman, Erin



Communication and collaboration technologies.  


This is the third in a series of columns exploring health information technology (HIT) in the neonatal intensive care unit (NICU). The first column provided background information on the implementation of information technology throughout the health care delivery system, as well as the requisite informatics competencies needed for nurses to fully engage in the digital era of health care. The second column focused on information and resources to master basic computer competencies described by the TIGER initiative (Technology Informatics Guiding Education Reform) as learning about computers, computer networks, and the transfer of data.1 This column will provide additional information related to basic computer competencies, focusing on communication and collaboration technologies. Computers and the Internet have transformed the way we communicate and collaborate. Electronic communication is the ability to exchange information through the use of computer equipment and software.2 Broadly defined, any technology that facilitates linking one or more individuals together is a collaborative tool. Collaboration using technology encompasses an extensive range of applications that enable groups of individuals to work together including e-mail, instant messaging (IM ), and several web applications collectively referred to as Web 2.0 technologies. The term Web 2.0 refers to web applications where users interact and collaborate with each other in a collective exchange of ideas generating content in a virtual community. Examples of Web 2.0 technologies include social networking sites, blogs, wikis, video sharing sites, and mashups. Many organizations are developing collaborative strategies and tools for employees to connect and interact using web-based social media technologies.3. PMID:22397797

Cheeseman, Susan E



Student Teaching as Collaboration  

NSDL National Science Digital Library

For teachers who are trying to understand what their students think and how they feel, data can include notes found on the floor after class, the letters they as teachers write to their students, and the e-mails they send each other as they puzzle out the problems of teaching and learning. Claire Bove and Matt Reider use all of these data sources as they try to understand and respond to students' interests, strengths, experiences, and needs. In this story of their collaboration efforts to support a classroom community in which cooperation, shared responsibility, and respect among students are built upon their own collaboration as teachers.

Claire Bove



Collaborative Teaching: Teaching Strangers  

ERIC Educational Resources Information Center

One calls people on the street strangers if he or she doesn't know who they are, so students whom the librarian has never dealt with are just that, strangers. When the school librarian gets involved in collaboration, most of the time they don't see the student's Individualized Education Programs (IEPs), language barriers, or anything else that…

Panter, Michael E.



Team Collaboration Software  

NASA Technical Reports Server (NTRS)

The Ground Resource Allocation and Planning Environment (GRAPE 1.0) is a Web-based, collaborative team environment based on the Microsoft SharePoint platform, which provides Deep Space Network (DSN) resource planners tools and services for sharing information and performing analysis.

Wang, Yeou-Fang; Schrock, Mitchell; Baldwin, John R.; Borden, Charles S.



Cultivating Labor Management Collaboration  

ERIC Educational Resources Information Center

In many districts, the notion of labor groups and district administration working together conjures descriptions of war and battle rather than cooperation and collaboration. However, in San Juan Unified School District, the headline, "Union and District Exhibit Positive Partnership" exemplifies the changing relationship between teacher leaders and…

Spector, Stacy



The Art of Collaboration.  

ERIC Educational Resources Information Center

Discusses building collaborative teacher-librarian relationships, focusing on team-building experiences at Lincoln Elementary School (Hawaii). Highlights include: building trust; cooperating on curriculum; creating leadership teams; planning interactive meetings; valuing strengths; varying roles and responsibilities; and viewing planning as…

Muronaga, Karen; Harada, Violet



Community Development Collaborative Program  

E-print Network

a "policing" approach to clients and communities. Meanwhile, corpo- rate ideas about management have gainedCommunity Development Collaborative Program SEMINAR The Dynamics of Support for Community Development & Organizing in Community Service Agencies Bob Luker Wednesday, November

Sokolowski, Marla


Making a Collaboration Work.  

ERIC Educational Resources Information Center

Narrates one example of a long-term partnership in which research has been carried out over a sustained length of time between two women at the same college. Discusses how differences can be negotiated, how collaborative ethics are formed, and how implications alter views of research. (HB)

Blyler, Nancy Roundy; Thralls, Charlotte



Blackboard Collaborate Materials License  

E-print Network

Blackboard Collaborate gives you the functionality you need to support a 21st century teaching and learning begins. Load multimedia content and File Transfer content. Find a comfortable place your participants to use the Audio Setup Wizard in order to test their microphone and speakers. Speak

Fernandez, Eduardo


A Failure to Collaborate  

ERIC Educational Resources Information Center

Based on a successful scholarly collaboration experience, the writer assigned a group project in a graduate seminar that confronted a wave of resentment. Small clusters of students were to tackle a multi-layered research assignment requiring textual decisions, bibliographic work, critical theory, historical research, and editorial design. As the…

Sanders, Martin



The Collaborative Research Paper.  

ERIC Educational Resources Information Center

Describes a five-week English course in which pairs of students work collaboratively on team-building activities, library research, research-paper topic selection, outlining, paraphrasing and summarizing, and writing and editing a joint research paper. Presents the peer-evaluation techniques, which differentiate students' share of the work so that…

Bashore, Joy



Collaborative Information Retrieval.  

ERIC Educational Resources Information Center

Researchers from the University of Washington, Microsoft Research, Boeing, and Risoe National Laboratory in Denmark have embarked on a project to explore the manifestations of Collaborative Information Retrieval (CIR) in work settings and to propose technological innovations and organizational changes that can support, facilitate, and improve CIR.…

Bruce, Harry; Fidel, Raya



Internet Performance Measurement Collaborators  

E-print Network

Internet Performance Measurement Collaborators Cross Industry Working Team (XIWT) High Performance of the timestamp mechanism in the ANS Surveyor Probe device FY98 · GITS Internet Performance Measurement Toolkit in Internet performance measurement through improved statistical analysis of the data that is collected


Active Collaborative Filtering  

E-print Network

Collaborative filtering (CF) allows the preferences of multiple users to be pooled to make recommendations regarding unseen products. We consider in this paper the problem of online and interactive CF: given the current ratings associated with a user, what queries (new ratings) would most improve the quality of the recommendations made? We cast this in terms of expected value of information (EVOI)

Craig Boutilier; Richard S. Zemel; Benjamin Marlin



Audience Methods Collaboration (Evaluation)  

E-print Network

Audience Methods Collaboration (Evaluation) Impact on Audience (Evaluation) Impact on Research 1 to be interested in your research? Consider the best ways to engage them: What methods, activities, formats involved gain from participating and how will you evaluate this? Consider integration with your research

Rambaut, Andrew


Collaborative Lesson Plans.  

ERIC Educational Resources Information Center

This collection consists of 41 collaborative lesson plans developed by 99 Virginia teachers at 18 primarily High Schools that Work (HSTW) and tech prep sites. It is divided into three sections: career connection, community connection, and consumer connection. Two types of lesson descriptions which support HSTW key practices, and Virginia's Tech…

Henrico County Public Schools, Glen Allen, VA. Virginia Vocational Curriculum and Resource Center.


Collaborative Technology Planning.  

ERIC Educational Resources Information Center

Describes the impact of technology planning on students' and teachers' learning based on experiences at a high school in Texas that provides academic alternatives to at-risk students. Discusses collaboration among teachers, principals, and district administrators; teachers' professional development; the technology committee; staff development;…

Lockard, Lea Ann



Home Alone! Still Collaborating  

ERIC Educational Resources Information Center

When the authors taught in traditional classroom settings, collaboration and communication were understood to be important. Part of every class session was spent in discussion because they knew the importance of students teaching students, and they believed that the teacher as a facilitator, rather than the supreme encyclopedia of knowledge, was a…

Bell, Mary Ann; Kuon, Tricia



Learning Music from Collaboration  

ERIC Educational Resources Information Center

I draw on two traditions of research: the social psychology of collaborative groups, and the ethnographic study of improvisational performance. I outline a general model of group creativity derived from these traditions. I show how the model can be used to better understand musical competence and performance, and I provide recommendations for how…

Sawyer, R. Keith



Chemical Equations  

NSDL National Science Digital Library

It discusses the process of equation writing and balancing chemical equations in perspective of the chemical changes that take place during a reaction. This module is the third in a series on chemical reactions.

Anthony Carpi



Triglyceride Levels Are Closely Associated with Mild Declines in Estimated Glomerular Filtration Rates in Middle-Aged and Elderly Chinese with Normal Serum Lipid Levels  

PubMed Central

Objective To investigate the relationship between lipid profiles [including total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C)] and a mild decline in the estimated glomerular filtration rate (eGFR) in subjects with normal serum lipid levels. Design and Methods In this study, we included 2647 participants who were ?40 years old and had normal serum lipid levels. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was used to estimate the GFR. A mildly reduced eGFR was defined as 60–90 mL/min/1.73 m2. First, multiple linear regression analysis was used to estimate the association of lipid profiles with the eGFR. Then, the levels of each lipid component were divided into four groups, using the 25th, 50th and 75th percentiles as cut-off points. Finally, multiple logistic regression analysis was used to investigate the association of different lipid components with the risk of mildly reduced eGFR. Results In the group with a mildly reduced eGFR, TG and LDL-C levels were significantly increased, but HDL-C levels were significantly decreased. After adjusting for age, gender, body mass index (BMI), systolic blood pressure (SBP), glycated hemoglobin (HbA1c), smoking and drinking, only TC and TG were independently related to the eGFR. Additionally, only TG showed a linear relationship with an increased risk of a mildly reduced eGFR, with the highest quartile group (TG: 108–150 mg/dl [1.22–1.70 mmol/L]) having a significantly increased risk after adjusting for the above factors. Conclusions Triglyceride levels are closely associated with a mildly reduced eGFR in subjects with normal serum lipid levels. Dyslipidemia with lower TG levels could be used as new diagnostic criteria for subjects with mildly reduced renal function. PMID:25275610

Zhang, Xiuping; Zhao, Xiangmin; Wang, Yulian; Li, Chengqiao; Li, Mei; Wang, Shaoyuan; Yang, Weifang; Ma, Zeqiang; Ma, Aixia; Zheng, Huizhen; Wu, Jiahui; Sun, Yu; Song, Jun; Lin, Peng; Liang, Kai; Gong, Lei; Wang, Meijian; Liu, Fuqiang; Li, Wenjuan; Xiao, Juan; Yan, Fei; Yang, Junpeng; Wang, Lingshu; Tian, Meng; Liu, Jidong; Zhao, Ruxing; Chen, Shihong; Chen, Li



High prevalence of signs of renal damage despite normal renal function in a cohort of HIV-infected patients: evaluation of associated factors.  


Renal disorders are an emerging problem in HIV-infected patients. We performed a cross-sectional study of the first 1000 HIV-infected patients attended at our HIV unit who agreed to participate. We determined the frequency of renal alterations and its related risk factors. Summary statistics and logistic regression were applied. The study sample comprised 970 patients with complete data. Most were white (94%) and men (76%). Median (IQR) age was 48 (42-53) years. Hypertension was diagnosed in 19%, dyslipidemia in 27%, and diabetes mellitus in 3%. According to the Chronic Kidney Disease Epidemiology Collaboration (CKD EPI) equation, 29 patients (3%) had an eGFR<60?ml/min/1.73?m(2); 18 of them (62%) presented altered albumin/creatinine and protein/creatinine (UPC or UAC) ratios. Of the patients with eGFR>60?mL/min, it was present in 293 (30%), 38 of whom (7.1%) had UPC>300?mg/g. Increased risk of renal abnormalities was correlated with hypertension (OR, 1.821 [95%CI, 1.292;2.564]; p=0.001), age (OR, 1.015 [95%CI, 1.001;1.030], per one year; p=0.040), and use of tenofovir disoproxil fumarate (TDF) plus protease inhibitor (PI), (OR, 1.401 [95%CI, 1.078;1.821]; p=0.012). Current CD4 cell count was a protective factor (OR, 0.9995 [95%CI, 0.9991;0.9999], per one cell; p=0.035). A considerable proportion of patients presented altered UPC or UAC ratios, despite having an eGFR>60?mL/min. CD4 cell count was a protective factor; age, hypertension, and use of TDF plus PIs were risk factors for renal abnormalities. Based on our results, screen of renal abnormalities should be considered in all HIV-infected patients to detect these alterations early. PMID:25238104

Bonjoch, Anna; Juega, Javier; Puig, Jordi; Pérez-Alvarez, Nuria; Aiestarán, Aintzane; Echeverría, Patricia; Pérez, Vanessa; Clotet, Bonaventura; Romero, Ramon; Bonet, Josep; Negredo, Eugenia



High prevalence of chronic kidney disease in a community survey of urban Bangladeshis: a cross-sectional study  

PubMed Central

Background The burden of chronic kidney disease (CKD) will rise in parallel with the growing prevalence of type two diabetes mellitus in South Asia but is understudied. Using a cross-sectional survey of adults living in a middle-income neighborhood of Dhaka, Bangladesh, we tested the hypothesis that the prevalence of CKD in this group would approach that of the U.S. and would be strongly associated with insulin resistance. Methods We enrolled 402 eligible adults (>30 years old) after performing a multi-stage random selection procedure. We administered a questionnaire, and collected fasting serum samples and urine samples. We used the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation to estimate glomerular filtration rate, and sex-specific cut offs for albuminuria: > 1.9 mg/mmol (17 mg/g) for men, and >2.8 mg/mmol (25 mg/g) for women. We assessed health-related quality of life using the Medical Outcomes Study Short Form-12 (SF-12). Results A total of 357 (89%) participants with serum samples comprised the analytic cohort. Mean age of was 49.5 (± 12.7) years. Chronic kidney disease was evident in 94 (26%). Of the participants with CKD, 58 (62%) had albuminuria only. A participant with insulin resistance had a 3.6-fold increase in odds of CKD (95% confidence interval 2.1 to 6.4). Participants with stage three or more advanced CKD reported a decrement in the Physical Health Composite score of the SF-12, compared with participants without CKD. Conclusion We found an alarmingly high prevalence of CKD—particularly CKD associated with insulin resistance—in middle-income, urban Bangladeshis. PMID:24555767



Glomerular Filtration Rate and Proteinuria: Association with Mortality and Renal Progression in a Prospective Cohort of a Community-Based Elderly Population  

PubMed Central

Limited prospective data are available on the importance of estimated glomerular filtration rate (GFR) and proteinuria in the prediction of all-cause mortality (ACM) in community-based elderly populations. We examined the relationship between GFR or proteinuria and ACM in 949 randomly selected community-dwelling elderly subjects (aged ?65 years) over a 5-year period. A spot urine sample was used to measure proteinuria by the dipstick test, and GFR was estimated using the chronic kidney disease-epidemiology collaboration (CKD-EPI) equation. Information about mortality and causes of death was collected by direct enquiry with the subjects and from the national mortality data. Compared to subjects without proteinuria, those with proteinuria of grade ?1+ had a 1.725-fold (1.134–2.625) higher risk of ACM. Compared to subjects with GFR ?90 ml/min/1.73 m2, those with GFR<45 ml/min/1.73 m2 had a 2.357 -fold (1.170–4.750) higher risk for ACM. Among the 403 subjects included in the analysis of renal progression, the annual rate of GFR change during follow-up period was ?0.52±2.35 ml/min/1.73 m2/year. The renal progression rate was 7.315-fold (1.841–29.071) higher in subjects with GFR<60 ml/min/1.73 m2 than in those with GFR ?60 ml/min/1.73 m2. Among a community-dwelling elderly Korean population, decreased GFR of <45 ml/min/1.73 m2 and proteinuria were independent risk factors for ACM. PMID:24709896

Oh, Se Won; Kim, Sejoong; Na, Ki Young; Kim, Ki Woong; Chae, Dong-Wan; Chin, Ho Jun



Chronic kidney disease at presentation is not an independent risk factor for AIDS-defining events or death in HIV-infected persons.  


Studies have documented an association between chronic kidney disease (CKD) and increased risk of end stage renal disease, death and comorbidities, including cardiovascular disease and metabolic syndrome, in the general population. However, there is little data on the relationship between CKD and ADE (AIDS defining event), and to our knowledge, no studies have analyzed death as a competing risk for ADE among HIV-infected persons. An observational cohort study was performed to determine the incidence and risks for developing an ADE or death among HIV-infected persons with and without CKD from 1998 - 2005. CKD was defined as an estimated glomerular filtration rate (eGFR) less than 60 ml/min/1.73 m2 using the CKDEpidemiology Collaboration (CKD-EPI) equation. Log rank test and Cox regression which determined time to development of ADE and/or death as combined and separate outcomes, and competing risk models for ADE versus mortality, were performed. Among the 2,127 persons that contributed to the 5,824 person years of follow-up: 22% were female, 34% African American, 38% on HAART, and 3% had CKD at baseline. ADE occurred in 227 (11%) persons and there were 80 (4%) deaths. CKD was not significantly associated with ADE/death (HR 1.3, 95% CIs: 0.5, 3.2), ADE (HR 1.0, 95% CIs: 0.4, 3.1), or death (HR 1.6, 95% CIs: 0.4, 3.1). Competing risk analyses confirmed no statistically significant associations between CKD and these outcomes. CKD was uncommon in HIV-infected persons presenting for care in this racially diverse cohort, and was not independently associated with risk of developing an ADE or dying during follow-up. PMID:23270930

Alves, Tahira P; Wu, Pingsheng; Ikizler, T Alp; Sterling, Timothy R; Stinnette, Samuel E; Rebeiro, Peter F; Ghosh, Suvro; Hulgan, Todd



Training for Collaboration: Collaborative Practice Skills for Mental Health Professionals  

ERIC Educational Resources Information Center

The purpose of the study was to identify skills that mental health practitioners need for successful collaborative practice in medical settings. Known experts in the field of collaborative health care completed a survey designed to elicit their suggestions about what is needed for successful collaborative care practice. Through qualitative…

Bischoff, Richard J.; Springer, Paul R.; Reisbig, Allison M. J.; Lyons, Sheena; Likcani, Adriatik



Collaboration: Some Principles of Bridgework.  

ERIC Educational Resources Information Center

Discusses the importance of collaboration between teacher education institutions and schools. At the heart of these collaborations should be the goal of improving the way children learn in school. (MD)

De Bevoise, Wynn



Customer focused collaborative demand planning  

E-print Network

Many firms worldwide have adopted the process of Sales & Operations Planning (S&OP) process where internal departments within a firm collaborate with each other to generate a demand forecast. In a collaborative demand ...

Jha, Ratan (Ratan Mohan)



Browsing is a collaborative process  

Microsoft Academic Search

Interfaces to databases have traditionally been designed as single-user systems that hide other users and their activity. This paper aims to show that collaboration is an important aspect of searching online information stores that requires explicit computerised support. The claim is made that a truly user-centred system must acknowledge and support collaborative interactions between users. Collaborative working implies a need

Michael B. Twidale; David M. Nichols; Chris D. Paice



To Collaborative LIfe Sciences Building  

E-print Network

To Collaborative LIfe Sciences Building To Professional Development Center Collaborative Life Sciences Building SW MEADE SW PORTER SW M OODY I-5 To Main Campus To South Waterfront I-405 Collaborative Life Sciences Building 0650 SW Meade St. Academic & Student Recreation Center (ASRC) C8 Art Building


Interagency Collaboration and Welfare Reform.  

ERIC Educational Resources Information Center

This issue of WIN (Welfare Information Network) Issue Notes raises some major issues that agencies may want to address as they consider expanding collaborative efforts. It describes collaborative efforts and identifies resources that could prove useful in designing successful collaborations. Section 1 offers background. Section 2 answers these…

Sussman, Tara



Collaborative document production using quilt  

Microsoft Academic Search

Quilt is a computer-based tool for collaborative document production. It provides annotation, messaging, computer conferencing, and notification facilities to support communication and information sharing among the collaborators on a document. Views of a document tailored to individual collaborators or to other of the document's users are provided by Quilt based on the user's position in a permission hierarchy that reflects

Mary Diane Palmer Leland; Robert S. Fish; Robert E. Kraut



DISSERTATION Distributed Collaborative Augmented Reality  

E-print Network

DISSERTATION Distributed Collaborative Augmented Reality ausgeführt zum Zwecke der Erlangung des COLLABORATIVE AUGMENTED REALITY - 2 - Abstract Augmented Reality is the mixture of computer graphics and text with real world and/or video images. This thesis presents improvements for collaborative augmented reality


Linear Equations  

NSDL National Science Digital Library

This unit is a full lesson on linear equations with many problems for students and notes to teachers embedded. It begins with a question which illustrates the eight points students most often do not understand in order to answer it correctly. The unit is divided into ten sections: Characteristics of Linear Equations, Tables of Values for Graphing, Using Intercepts for Graphing, Using Slope-Intercept Form with Graphs, Families of Linear Equations, Graphing Linear vs. Non-Linear Equations, Creating, Graphing and Using Linear Equations, Simple System of Equations, What Went Wrong? (in which students observe how another student incorrectly answered a question), and Exploring with a Graphing Calculator. This is an excellent unit, used whole or in its parts, for students beginning with linear equations.



National Girls Collaborative Project  

NSDL National Science Digital Library

Numerous programs and initiatives to create gender equity in the areas of science, technology, engineering, and mathematics (STEM) have been implemented only to lose effectiveness or fade away. Had these programs had the benefit of collaboration with other girl-serving projects, organizations and institutions, and tools to assess and evaluate the impact of their efforts, their capacity for continuation and/or broader impact could have been substantially increased.The National Girls Collaborative Project (NGCP) is designed to reach girl-serving STEM organizations across the United States.The vision of the NGCP is to bring together organizations throughout the United States that are committed to informing and encouraging girls to pursue careers in science, technology, engineering, and mathematics (STEM.


Collaborative Decision Making  

NSDL National Science Digital Library

In this product, students engage in processes/activities for collaboration and communication strategies. Students compare risks of courses of action confronting NASA's Deep Impact mission team. They investigate information necessary to support arguments, quantitative risk analyses, debate, role play, persuasive writing/communication skills and group decision making procedures. This activity has been aligned to the national math and science standards as well as math and science standards for California, Texas and Maryland.



Collaboration to partnerships.  


Partnerships are at the center of the Hospital of the University of Pennsylvania Nursing Excellence Professional Practice (HUP-NEPP) model. Through the use of collaboration, skilled communication, and respectful workplace, partnerships can be formed, leading ultimately to world-class patient care. At HUP, interdisciplinary partnerships are evidenced by the clinical nurses through shared governance. This article describes the components necessary to form successful partnerships. PMID:20023561

Dietrich, Sandra L; Kornet, Terese M; Lawson, Diane R; Major, Katherine; May, Linda; Rich, Victoria L; Riley-Wasserman, Elizabeth



Electronic Literacy, Critical Pedagogy, and Collaboration: A Case for Cyborg Writing.  

ERIC Educational Resources Information Center

Argues that the combination of collaborative writing and electronic resources can produce a reaffirmation of literacy as a social process. Utilizes feminist theory to equate the postmodernist assumptions regarding the indeterminate nature of language with democratizing influences. Describes a class project where students produced a collaborative,…

Winkelmann, Carol L.



Collaboratively Sharing Scientific Data  

NASA Astrophysics Data System (ADS)

Scientific research becomes increasingly reliant on multi-disciplinary, multi-institutional collaboration through sharing experimental data. Indeed, data sharing is mandatory by government research agencies such as NIH. The major hurdles for data sharing come from: i) the lack of data sharing infrastructure to make data sharing convenient for users; ii) users’ fear of losing control of their data; iii) difficulty on sharing schemas and incompatible data from sharing partners; and iv) inconsistent data under schema evolution. In this paper, we develop a collaborative data sharing system SciPort, to support consistency preserved data sharing among multiple distributed organizations. The system first provides Central Server based lightweight data integration architecture, so data and schemas can be conveniently shared across multiple organizations. Through distributed schema management, schema sharing and evolution is made possible, while data consistency is maintained and data compatibility is enforced. With this data sharing system, distributed sites can now consistently share their research data and their associated schemas with much convenience and flexibility. SciPort has been successfully used for data sharing in biomedical research, clinical trials and large scale research collaboration.

Wang, Fusheng; Vergara-Niedermayr, Cristobal


Solving equations  

NSDL National Science Digital Library

The activities on this site will help you practice solving one, two, and multi-step equations. 1. View this video to see the importance of following math facts. abbot and costello videa 2. Practice simple 2 step equations by playing Equations Blaster. Use the arrow keys to move side to side and the spacebar to blast. Only play 1 or 2 games , then move to the next ...

Mr. Berry



Equation Dictionary  

NSDL National Science Digital Library

When equations are presented in class or in the context of textbook reading, students first evaluate whether the equation is appropriate for use in the dictionary (is it useful in many situations or specific to one problem? Is it a "final" version of an equation, or can it be simplified? Is it likely to be used in solving geophysical problems?) Once an equation is selected for the dictionary, students add a "definition" that includes (a) a short description of each variable and relevant constants, including appropriate units, (b) a written description of the process or relationships presented within the equation, and (c) any additional notes that help them understand the equation. The dictionary may be used on homework and exams, which encourages students to describe the equations in a manner that is meaningful to them. Thus, rather than simply write down the equation for seismic moment, a student might add "Seismic moment is a function of the size of the fault as well as the rigidity of the rock. The larger the fault or the displacement, the larger the earthquake". This activity allows students to evaluate their understanding of equations and the underlying physical processes. Addresses student fear of quantitative aspect and/or inadequate quantitative skills Addresses student misconceptions

Jacqueline Caplan-Auerbach


Collaborative editing within the pervasive collaborative computing environment  

SciTech Connect

Scientific collaborations are established for a wide variety of tasks for which several communication modes are necessary, including messaging, file-sharing, and collaborative editing. In this position paper, we describe our work on the Pervasive Collaborative Computing Environment (PCCE) which aims to facilitate scientific collaboration within widely distributed environments. The PCCE provides a persistent space in which collaborators can locate each other, exchange messages synchronously and asynchronously and archive conversations. Our current interest is in exploring research and development of shared editing systems with the goal of integrating this technology into the PCCE. We hope to inspire discussion of technology solutions for an integrated approach to synchronous and asynchronous communication and collaborative editing.

Perry, Marcia; Agarwal, Deb



State Technologies Advancement Collaborative  

SciTech Connect

The U. S. Department of Energy (DOE), National Association of State Energy Officials (NASEO), and Association of State Energy Research and Technology Transfer Institutions (ASERTTI) signed an intergovernmental agreement on November 14, 2002, that allowed states and territories and the Federal Government to better collaborate on energy research, development, demonstration and deployment (RDD&D) projects. The agreement established the State Technologies Advancement Collaborative (STAC) which allowed the states and DOE to move RDD&D forward using an innovative competitive project selection and funding process. A cooperative agreement between DOE and NASEO served as the contracting instrument for this innovative federal-state partnership obligating funds from DOE's Office of Energy Efficiency and Renewable Energy and Office of Fossil Energy to plan, fund, and implement RDD&D projects that were consistent with the common priorities of the states and DOE. DOE's Golden Field Office provided Federal oversight and guidance for the STAC cooperative agreement. The STAC program was built on the foundation of prior Federal-State efforts to collaborate on and engage in joint planning for RDD&D. Although STAC builds on existing, successful programs, it is important to note that it was not intended to replace other successful joint DOE/State initiatives such as the State Energy Program or EERE Special Projects. Overall the STAC process was used to fund, through three competitive solicitations, 35 successful multi-state research, development, deployment, and demonstration projects with an overall average non-federal cost share of 43%. Twenty-two states were awarded at least one prime contract, and organizations in all 50 states and some territories were involved as subcontractors in at least one STAC project. Projects were funded in seven program areas: (1) Building Technologies, (2) Industrial Technologies, (3) Transportation Technologies, (4) Distributed Energy Resources, (5) Hydrogen Technology Learning Centers, (6) Fossil Energy, and (7) Rebuild America.

David S. Terry



Linear Equations: One Step Equations  

NSDL National Science Digital Library

This video, best for introductory algebra students, demonstrates solving linear equations by working backwards, using inverse or opposite operations. The video uses several examples to demonstrate balancing equations to solve them. This is an excellent resource to help students understand how to solve linear equations by undoing operations and balancing. Flash player is required to view the video. Running time for the video is 4:59.



Multiple collaborative kernel tracking.  


Those motion parameters that cannot be recovered from image measurements are unobservable in the visual dynamic system. This paper studies this important issue of singularity in the context of kernel-based tracking and presents a novel approach that is based on a motion field representation which employs redundant but sparsely correlated local motion parameters instead of compact but uncorrelated global ones. This approach makes it easy to design fully observable kernel-based motion estimators. This paper shows that these high-dimensional motion fields can be estimated efficiently by the collaboration among a set of simpler local kernel-based motion estimators, which makes the new approach very practical. PMID:17496383

Fan, Zhimin; Yang, Ming; Wu, Ying



The Efficient Windows Collaborative  

SciTech Connect

The Efficient Windows Collaborative (EWC) is a coalition of manufacturers, component suppliers, government agencies, research institutions, and others who partner to expand the market for energy efficient window products. Funded through a cooperative agreement with the U.S. Department of Energy, the EWC provides education, communication and outreach in order to transform the residential window market to 70% energy efficient products by 2005. Implementation of the EWC is managed by the Alliance to Save Energy, with support from the University of Minnesota and Lawrence Berkeley National Laboratory.

Petermann, Nils



Collaborative Hypertext of Radiology  

NSDL National Science Digital Library

The Medical College of Wisconsinâ??s Collaborative Hypertext of Radiology (CHORUS) website contains over one thousand documents and images related to anatomy and physiology, radiological findings, diagnostics, and diseases. The site links headings and reference information with images, providing access to case study images in a variety of formats. Not only are the documents and images helpful reference sources, but they are also great tool for those looking to practice their diagnostic skills. This is a valuable tool for students studying the basics of radiology and related fields.


Equation Match  

NSDL National Science Digital Library

Those crazy ancient mathematicians are back. In this online game, students find the matching pairs by solving equations to find the value of x in each equation. Correct answers reveal a hidden picture. Levels 1 and 2 are most appropriate for Grades 6-7 Level 3 is most appropriate for Grade 8

British Broadcasting Corporation



Cystatin C: a useful marker of glomerulopathy in sickle cell disease?  


As renal dysfunction is a leading cause of morbidity in sickle cell disease it is important that clinicians have accurate means of assessing its risk and severity. Cystatin C (Cys-C) is being recognized as a useful marker of renal function in other populations and this study aims to determine its utility in adults with sickle cell anemia (SCA). 98 persons with the homozygous SS disease (55 females: 43 males; mean age 34±2.3 years) had hematological and biochemical, including Cys-C, measurements; and glomerular filtration rate (GFR) measured using a (99m)Tc-DTPA nuclear renal scan. The measured GFR was 94.9±27.4mL/min/1.73m(2), and mean Cys-C level was 0.80±0.78mg/L. Cys-C was significantly correlated with measured GFR (r=-0.61), hemoglobin (r=-0.32), serum creatinine (r=0.91), urine ACR (r=0.79), and systolic blood pressure (r=0.38). The Cys-C based CKD-EPI showed the greatest agreement than the other commonly used Cys-C based as well as the serum creatinine based MDRD and CKD-EPI equations. Cys-C also showed a strong association with GFR in a significant regression model. In conclusion, Cys-C has shown strong associations with GFR and albuminuria among patients with SCA and so may be a useful screening tool in this patient population. PMID:25300191

Asnani, Monika; Reid, Marvin



Building a Foundation for Collaboration  

Microsoft Academic Search

The authors have developed collaborative partnerships with K-12 educators and school library\\/media specialist students to promote information literacy. This article traces the history beginning with on-site workshops collaboratively developed by K-12 and university library staff; a continuing education course in information literacy for teachers and school librarians; an in-service workshop prepared collaboratively by a high school staff and university librarians;

Janet W. Nichols; Lothar Spang; Kristy Padron



Supporting collaborative computing and interaction  

SciTech Connect

To enable collaboration on the daily tasks involved in scientific research, collaborative frameworks should provide lightweight and ubiquitous components that support a wide variety of interaction modes. We envision a collaborative environment as one that provides a persistent space within which participants can locate each other, exchange synchronous and asynchronous messages, share documents and applications, share workflow, and hold videoconferences. We are developing the Pervasive Collaborative Computing Environment (PCCE) as such an environment. The PCCE will provide integrated tools to support shared computing and task control and monitoring. This paper describes the PCCE and the rationale for its design.

Agarwal, Deborah; McParland, Charles; Perry, Marcia



Collaborative Genres for Collaboration: Genre Systems in Digital Media  

Microsoft Academic Search

Using the concept of genre, we examined the use of Team Room to facilitate collaborative work in one organization. Team Room is a collaborative application built within Lotus Notes and designed specifically to support teams within organizational settings. We studied three teams' communication in Team Room over seven months and found that some of the genres they enacted formed sets

Joanne Yates; Wanda J. Orlikowski; Julie Rennecker



Wikis to Support the "Collaborative" Part of Collaborative Learning  

ERIC Educational Resources Information Center

Prior research has highlighted the value of using wikis to support learning. This paper makes the case that the wiki has several properties that are particularly amenable for constructing applications that support the "collaborative" part of a variety and range of different time/different place student collaborations. In support of the argument,…

Larusson, Johann Ari; Alterman, Richard



Equation Grapher  

NSDL National Science Digital Library

This interactive simulation investigates graphing linear and quadratic equations. Users are given the ability to define and change the coefficients and constants in order to observe resulting changes in the graph(s).

PhET at University of Colorado



Collaborative Resource Allocation  

NASA Technical Reports Server (NTRS)

Collaborative Resource Allocation Networking Environment (CRANE) Version 0.5 is a prototype created to prove the newest concept of using a distributed environment to schedule Deep Space Network (DSN) antenna times in a collaborative fashion. This program is for all space-flight and terrestrial science project users and DSN schedulers to perform scheduling activities and conflict resolution, both synchronously and asynchronously. Project schedulers can, for the first time, participate directly in scheduling their tracking times into the official DSN schedule, and negotiate directly with other projects in an integrated scheduling system. A master schedule covers long-range, mid-range, near-real-time, and real-time scheduling time frames all in one, rather than the current method of separate functions that are supported by different processes and tools. CRANE also provides private workspaces (both dynamic and static), data sharing, scenario management, user control, rapid messaging (based on Java Message Service), data/time synchronization, workflow management, notification (including emails), conflict checking, and a linkage to a schedule generation engine. The data structure with corresponding database design combines object trees with multiple associated mortal instances and relational database to provide unprecedented traceability and simplify the existing DSN XML schedule representation. These technologies are used to provide traceability, schedule negotiation, conflict resolution, and load forecasting from real-time operations to long-range loading analysis up to 20 years in the future. CRANE includes a database, a stored procedure layer, an agent-based middle tier, a Web service wrapper, a Windows Integrated Analysis Environment (IAE), a Java application, and a Web page interface.

Wang, Yeou-Fang; Wax, Allan; Lam, Raymond; Baldwin, John; Borden, Chester



Collaborative Beamfocusing Radio (COBRA)  

NASA Astrophysics Data System (ADS)

A Ziva team has recently demonstrated a novel technique called Collaborative Beamfocusing Radios (COBRA) which enables an ad-hoc collection of distributed commercial off-the-shelf software defined radios to coherently align and beamform to a remote radio. COBRA promises to operate even in high multipath and non-line-of-sight environments as well as mobile applications without resorting to computationally expensive closed loop techniques that are currently unable to operate with significant movement. COBRA exploits two key technologies to achieve coherent beamforming. The first is Time Reversal (TR) which compensates for multipath and automatically discovers the optimal spatio-temporal matched filter to enable peak signal gains (up to 20 dB) and diffraction-limited focusing at the intended receiver in NLOS and severe multipath environments. The second is time-aligned buffering which enables TR to synchronize distributed transmitters into a collaborative array. This time alignment algorithm avoids causality violations through the use of reciprocal buffering. Preserving spatio-temporal reciprocity through the TR capture and retransmission process achieves coherent alignment across multiple radios at ~GHz carriers using only standard quartz-oscillators. COBRA has been demonstrated in the lab, aligning two off-the-shelf software defined radios over-the-air to an accuracy of better than 2 degrees of carrier alignment at 450 MHz. The COBRA algorithms are lightweight, with computation in 5 ms on a smartphone class microprocessor. COBRA also has low start-up latency, achieving high accuracy from a cold-start in 30 ms. The COBRA technique opens up a large number of new capabilities in communications, and electronic warfare including selective spatial jamming, geolocation and anti-geolocation.

Rode, Jeremy P.; Hsu, Mark J.; Smith, David; Husain, Anis



The Power of Collaborative Research  

E-print Network

July 23, 2012 Objectives Capacity building and increased visibility through collaborative research average: 3,450 tons/km2/year. Soil loss maps #12;TREX: Two Dimensional Runoff Erosion and Export en yx i;Erosion and River Mechanics Textbooks ASCE Journal of Hydraulic Engineering #12;Collaboration

Julien, Pierre Y.


International Collaboration in Mechatronics Education  

Microsoft Academic Search

Mechatronics education benefits from being taught in an international setting. In this article, five different modes of international collaboration are presented. All five models have been tried in collaborative educational projects between KTH, the Royal Institute of Technology, and partner universities worldwide. The introduced settings are compared and analyzed according to advantages and disadvantages, as well as possible educational aims.

Martin Grimheden



Microsoft Academic Search

Virtual Collaboration is becoming extremely important for business success in the market. Companies that do not explore these options are putting themselves at a disadvantage to their competitors. Collaboration is not only a new idea but also new technology that improves the way a company communicates with its customers, partners, and employees that work at home or in satellite locations

Jason C. H. Chen; Binshan Lin


Towards Synchronous Collaborative Software Engineering  

Microsoft Academic Search

Caise, a collaborative software engineering architecture, provides ex- tensible real-time support for collaboration between participating tools and users. The architecture maintains a semantic project model con- structed incrementally from software artifacts as they are developed; this model is used to determine the impact of changes at a semantic level. This information is relayed to developers, providing them with awareness of

Carl Cook; Neville Churcher; Warwick Irwin



Knowledge Convergence and Collaborative Learning  

ERIC Educational Resources Information Center

This paper operationalized the notion of knowledge convergence and assessed quantitatively how much knowledge convergence occurred during collaborative learning. Knowledge convergence was defined as an increase in common knowledge where common knowledge referred to the knowledge that all collaborating partners had. Twenty pairs of college students…

Jeong, Heisawn; Chi, Michelene T. H.



Illinois: Child Care Collaboration Program  

ERIC Educational Resources Information Center

The Illinois Child Care Collaboration Program promotes collaboration between child care and other early care and education providers, including Early Head Start (EHS), by creating policies to ease blending of funds to extend the day or year of existing services. While no funding is provided through the initiative, participating programs may take…

Center for Law and Social Policy, Inc. (CLASP), 2012



Collaborative learning: A memorable model  

Microsoft Academic Search

Reform movements envision schools that will involve greater levels of cooperation and collaboration. Collaborative learning strategies provide a powerful mechanism not only to address affective goals in education but also to enhance students’ cognitive development; to deepen their understanding of concepts; and to press them to examine, articulate, and elaborate their ideas with greater clarity and rigor. Unless teachers have

Anita Woolfolk Hoy



Collaboration for Inclusion: Practitioner Perspectives  

Microsoft Academic Search

Collaboration as a cornerstone of effective school inclusion is an idea that has high theoretical currency among many scholars in the areas of special education and educational leadership. The challenge for educational practitioners is to find ways to implement high-quality special education programs collaboratively amid the public call for school efficiency and accountability. Accordingly, the primary purpose of the qualitative

Rebecca Smith; Pauline Leonard



Leadership in online creative collaboration  

Microsoft Academic Search

Leadership plays a central role in the success of many forms of online creative collaboration, yet little is known about the challenges leaders must manage. In this paper, we report on a qualitative study of leadership in three online communities whose members collaborate over the Internet to create computer-animated movies called \\

Kurt Luther; Amy Bruckman



Exchanging Gifts: Collaboration and Location.  

ERIC Educational Resources Information Center

Collaborative exchanges between teachers and educational researchers were studied through a project that focused on the induction of new community college teachers in Ontario (Canada). Each instructor was interviewed and much time was spent collaboratively developing full life history profiles. The focus of this exploration is on the on-site…

Goodson, Ivor; Fliesser, Chris


assimilate: situated collaborative storytelling system  

Microsoft Academic Search

The assimilate system is an online collaborative environment that allows participants to visually construct narratives in a 3D virtual space. Using an expressive and physical touch table interface, up to four participants can collaboratively narrate an ongoing story using online media obtained through an internet keyword search.

Damian Hills



Croquet - A Collaboration System Architecture  

Microsoft Academic Search

Croquet (18) is a computer software architecture built from the ground up with a focus on deep collaboration between teams of users. It is a totally open, totally free, highly portable extension to the Squeak (5) programming system. Croquet is a complete development and delivery platform for doing real collaborative work. There is no distinction between the user envi ronment

David A. Smith; Alan C. Kay; Andreas Raab; David P. Reed



Computational Tools for Mathematical Collaboration  

E-print Network

. Relatively recently, collaboration, both tightly-knit and loosely-coupled, has become important that mathematical software must be recon- sidered, in all its aspects, as a platform for collaboration. A new kind of mathematical software should be as different from the present generation of software as the social web is from

Watt, Stephen M.


Computational Tools for Mathematical Collaboration  

E-print Network

. Relatively recently, collaboration, both tightly-knit and loosely-coupled, has become important that mathematical software must be reconsidered, in all its aspects, as a platform for collaboration. A new kind of mathematical software should be as different from the present generation of software as the social web is from

Watt, Stephen M.


Collaborative Writing: Online versus Frontal  

ERIC Educational Resources Information Center

Students in higher education, most frequently, use the frontal approach while being asked to collaborate on a writing assignment. However, the difficulty in collaborative writing using conventional technologies such as pen and paper, board or computer is the limited ability to view the work of your peers during the process (Baeker, Glass,…

Passig, David; Schwartz, Gali



Job Migration: A Collaborative Effort  

ERIC Educational Resources Information Center

Music teachers often change jobs several times during their careers. Reasons for job changes vary, but regardless, these changes bring a different set of challenges. Sharing knowledge and learning are part and parcel of collaboration. So what if, as education professionals, music teachers decided to collaborate during job migrations? For all music…

Wagoner, Cynthia L.



Secure collaborations over message boards  

Microsoft Academic Search

We provide a message board model for collaborative systems, and propose an architecture and protocol for securing collaborative applications over message boards. The proposed architecture employs only efficient symmetric cryptographic principles, and low complexity trust modules with each participant. The trust modules are used to protect group secrets and reduce susceptibility to denial of service attacks. We outline an architecture

Mahalingam Ramkumar; Nasir D. Memon



Collaborative Research and Teacher Education  

ERIC Educational Resources Information Center

In this article, the author explores how collaborative teacher research can reposition teachers to be powerful stakeholders and policymakers rather than skilled technicians and implementers. She begins with a brief review of the historical antecedents to collaborative teacher research in order to detail how teachers and their allies have fought…

Christianakis, Mary



Progress of APEmille APE Collaboration  

E-print Network

1 Progress of APEmille APE Collaboration F. Aglietti a , A. Bartoloni a , N. Cabibbo a , M. Cosimi The APE collaboration is now in the final inte­ gration phase of APEmille, which is an evolution of the APE100 SIMD architecture [1] and has a roughly one order of magnitude higher peak per­ formance

Rossetti, Davide


A Model of Transformative Collaboration  

ERIC Educational Resources Information Center

Two collaborative writing partners sought to deepen their understanding of transformative learning by conducting several spirals of grounded theory research on their own collaborative relationship. Drawing from adult education, business, and social science literature and including descriptive analysis of their records of activity and interaction…

Swartz, Ann L.; Triscari, Jacqlyn S.



Collaborative video editing for Wikipedia  

Microsoft Academic Search

Collaborative video for Wikipedia faces several challenges from social and community adoption to technology limitations. This presentation explores how each of these problems are being addressed. The presentation focuses on building a collaborative educational video community and how the html5 technology platform has evolved to better support rich media applications such as HTML5 video editing in the browser and standardization

Michael Dale



Collaborative Relationships in Evaluation Consulting  

ERIC Educational Resources Information Center

People are often driven to become "independent" as part of the desire to go out on their own. Independent evaluation consultants, however, frequently collaborate with others on evaluation projects. This chapter explores such collaborative relationships from both sides: those leading evaluations with subcontracted consultants and those who work as…

Maack, Stephen C.; Upton, Jan



Collaborative Networks for Biodiversity Domain Organizations  

E-print Network

Collaborative Networks for Biodiversity Domain Organizations Ekaterina Ermilova, Hamideh, operating in the domains of biology, ecology, and biodiversity, strongly need to cooperate: Biodiversity, Collaborative Network, Breeding environment for Temporary Collaborative Networks 1 Introduction

Boyer, Edmond


Adaptation in Collaborative Governance Regimes  

NASA Astrophysics Data System (ADS)

Adaptation and the adaptive capacity of human and environmental systems have been of central concern to natural and social science scholars, many of whom characterize and promote the need for collaborative cross-boundary systems that are seen as flexible and adaptive by definition. Researchers who study collaborative governance systems in the public administration, planning and policy literature have paid less attention to adaptive capacity specifically and institutional adaptation in general. This paper bridges the two literatures and finds four common dimensions of capacity, including structural arrangements, leadership, knowledge and learning, and resources. In this paper, we focus on institutional adaptation in the context of collaborative governance regimes and try to clarify and distinguish collaborative capacity from adaptive capacity and their contributions to adaptive action. We posit further that collaborative capacities generate associated adaptive capacities thereby enabling institutional adaptation within collaborative governance regimes. We develop these distinctions and linkages between collaborative and adaptive capacities with the help of an illustrative case study in watershed management within the National Estuary Program.

Emerson, Kirk; Gerlak, Andrea K.



Collaborations in Underground Laboratories  

NASA Astrophysics Data System (ADS)

There are programs between underground physics labs into other studies. The Gran Sasso with large halls and dedicated tunnels in Italy and the Canfranc with newly completed space in Spain have geodynamic experiments (A. Bettini communication, 2011). The Low Noise Underground Lab (LSBB of Rustrel-pays d'Apt) converted a former French missiles launching command center to house a SQUID shielded electromagnetically above 10 Hz for global ionosphere and earthquake observations (G. Waysand et al. 2010). The China JingPing Lab has new physics room and tunnels excavated under 2.5 km overburden with rock mechanic changes evaluated (X. Feng, 2011). These are examples associated with tunnels through mountain ranges. In North America, we have Canada's SNO in an active mine with new space and the U.S. effort for reentry into the abandoned Homestake mine levels for physics and bio-geo-engineering studies. We also have underground research labs dedicated to nuclear waste research in Sweden, Switzerland, France, Germany, and candidate sites in Japan and China. All these underground labs are engaging in international collaborations to develop inter-disciplinary studies. The linkage/networking with International Physics is pursued.

Wang, Joseph S. Y.



BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research.  

E-print Network

BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting for the duration of the study. Multinomial logistic odds ratios from generalized estimating equations indicated


Interdisciplinary Educational Collaborations: Chemistry and Computer Science  

ERIC Educational Resources Information Center

Research collaborations between chemists and other scientists resulted in significant outcomes such as development of software. Such collaboration provided a realistic learning experience for computer science students.

Haines, Ronald S.; Woo, Daniel T.; Hudson, Benjamin T.; Mori, Joji C.; Ngan, Evey S. M.; Pak, Wing-Yee



Exploring Equations  

NSDL National Science Digital Library

This lesson from Illuminations has students study equivalence and systems of equations while identifying and using related functions. It includes an interactive applet that can be used in class. Discussion questions are also included to supplement the interactive material. The lesson is appropriate for grades 9-12 and should require one class period to complete.



Differential Equations  

NSDL National Science Digital Library

This course, presented by MIT and taught by Professors Haynes Miller and Arthur Mattuck, provides undergraduate level calculus instruction. Focusing on differential equations, the materials include video lectures, lecture notes, exams and assignments (with solutions). MIT presents OpenCourseWare as free educational material online. No registration or enrollment is required to use the materials.

Mattuck, Arthur


Networking, videoconferencing and collaborative environments  

NASA Astrophysics Data System (ADS)

Collaborative environments supporting point to point and multipoint videoconferencing, document and application sharing across both local and wide area networks, video on demand (broadcast and playback), and interactive text facilities will be a crucial element for the development of the next generation of HEP experiments by geographically dispersed collaborations. We discuss recent developments in packet videoconferencing and their integration with circuit switched systems over the past two years, with a focus on the needs of HENP and other scientific fields, and the work of the Caltech and LBL groups in collaboration with the HEPNRC in particular. We also briefly review the move towards international standards, developments on the open market, and remark on the likely impact on collaborative research and the key issues for the immediate future.

Galvez, P.; Newman, H.



Effective organization for uncertain collaborations  

E-print Network

. Path dependent organizational cultures Projects with `limited potential markets' may succeed without facing the challenge of defending Organizational culture is path dependent Practices build up over time with unreliable partners? Collaboration is hard enough across organizational, temporal, motivational

Crowston, Kevin


Doing Collaborative Learning (CL)- Groups  

NSDL National Science Digital Library

This site features a guide to all the benefits and challenges encountered when guiding groups through the process of collaborative learning. Included are tips for promoting positive interaction, creating a good group dynamic, and forming successful groups.

Wisconsin Center for Education Research


Gearbox Reliability Collaborative Update (Presentation)  

SciTech Connect

This presentation was given at the Sandia Reliability Workshop in August 2013 and provides information on current statistics, a status update, next steps, and other reliability research and development activities related to the Gearbox Reliability Collaborative.

Sheng, S.



Collaborative Authoring of Walden's Paths  

E-print Network

The World Wide Web contains rich collections of digital materials that can be used in education and learning settings. The collaborative authoring prototype of Walden's Paths targets two groups of users: educators and learners. From the perspective...

Li, Yuanling



Musicpainter : a collaborative composing environment  

E-print Network

This thesis presents the design and implementation of Musicpainter, a networked graphical composing environment that encourages sharing and collaboration within the composing process. Instead of building a computer-assisted ...

Li, Wu-Hsi



An Academic Perspective of Collaboration  

E-print Network #12;The Archetypal Success Story in Knowledge Transfer Why was Silicon Valley a success a collaborative environment no egos bring down the walls shared risk, shared effort, shared reward infrastructure

Richards-Kortum, Rebecca


Challenges in Collaborative Authoring Software  

Microsoft Academic Search

Collaborative work with office suite documents demands new tools and methods for their control and ease-of-use. We identify twelve challenges to such collaborative software: time and space, awareness, communication, private and shared work spaces, intellectual property, simultaneity and locking, protection, workflow, security, file format, platform independence, and benefit. We use these challenges to measure the success of TellTable, a web-based

Andy Adler; John C. Nash; Sylvie Noël


[Collaboration between academia and companies].  


Recently the collaboration between academia and company has been recommended by the government and more than 1,000 venture companies have established since 2001. Indeed this situation caused the researchers active, on the other side many undesirable troubles has been increasing among researches in the university. In this paper the cause of these troubles related to the collaboration between academia and company has been analyzed and proposed the possible solutions for the problems. PMID:18464523

Ueda, Minoru



Fermilab-Latin America collaboration  

Microsoft Academic Search

Fermilab`s program of collaboration with Latin America was initiated by then-Director Leon Lederman about 1980. His goal was to aid Latin American physics, and particularly its particle physics; this latter aim is in keeping with the Laboratory`s particle physics mission. The reasons for collaboration between institutions in the US and Latin America are many, including geographic and cultural, together with




Marcus equation  

SciTech Connect

In the late 1950s to early 1960s Rudolph A. Marcus developed a theory for treating the rates of outer-sphere electron-transfer reactions. Outer-sphere reactions are reactions in which an electron is transferred from a donor to an acceptor without any chemical bonds being made or broken. (Electron-transfer reactions in which bonds are made or broken are referred to as inner-sphere reactions.) Marcus derived several very useful expressions, one of which has come to be known as the Marcus cross-relation or, more simply, as the Marcus equation. It is widely used for correlating and predicting electron-transfer rates. For his contributions to the understanding of electron-transfer reactions, Marcus received the 1992 Nobel Prize in Chemistry. This paper discusses the development and use of the Marcus equation. Topics include self-exchange reactions; net electron-transfer reactions; Marcus cross-relation; and proton, hydride, atom and group transfers.




Recommending Research Profiles for Multidisciplinary Academic Collaboration  

ERIC Educational Resources Information Center

This research investigates how data on multidisciplinary collaborative experiences can be used to solve a novel problem: recommending research profiles of potential collaborators to academic researchers seeking to engage in multidisciplinary research collaboration. As the current domain theories of multidisciplinary collaboration are insufficient…

Gunawardena, Sidath Deepal



Validation of Metrics for Collaborative Systems  

Microsoft Academic Search

This paper describe the new concepts of collaborative systems metrics validation. The paper define the quality characteristics of collaborative systems. There are proposed a metric to estimate the quality level of collaborative systems. There are performed measurements of collaborative systems quality using a specially designed software.

Cristian CIUREA; Ion IVAN



Evaluating Collaboration for Effectiveness: Conceptualization and Measurement  

ERIC Educational Resources Information Center

Although collaboration is recognized as an effective means to address multifaceted community issues, successful collaboration is difficult to achieve and failure is prevalent. To effectively collaborate, collaborators must recognize the strengths and weaknesses within their own efforts. Using Mattessich and colleagues' work as a springboard,…

Marek, Lydia I.; Brock, Donna-Jean P.; Savla, Jyoti



Implicit collaboration of sensor systems  

NASA Astrophysics Data System (ADS)

The concept of goal lattices for the evaluation of potential sensor actions can be used to cause a multiplicity of heterogeneous sensor systems to collaborate. Previously goal lattices have been used to compute the value to a sensor system of taking a particular action in terms of how well that action contributes to the accomplishment of the topmost goals. This assumes that each sensor system is autonomous and only responsible to itself. If the topmost goals of each sensor system's goal lattice has adjoined to it two additional goals, namely "collaboration" and "altruism", then the value system is extended to include servicing requests from other systems. Two aircraft on a common mission can each benefit from measurements taken by the other aircraft either to confirm their own measurements, to create a pseudo-sensor, or to extend the area of coverage. The altruism goal indicates how much weight a sensor management system (SMS) will give in responding to a measurement request from any other system. The collaboration goal indicates how much weight will be given to responding to a measurement request from specific systems which are defined as being part of a collaborating group. By varying the values of the altruism and collaboration goals of each system, either locally or globally, various levels of implicit cooperation among sensor systems can be caused to emerge.

Hintz, Kenneth J.



Social inertia in collaboration networks  

E-print Network

This work is a study of the properties of collaboration networks employing the formalism of weighted graphs to represent their one-mode projection. The weight of the edges is directly the number of times that a partnership has been repeated. This representation allows us to define the concept of "social inertia" that measures the tendency of authors to keep on collaborating with previous partners. We use a collection of empirical datasets to analyze several aspects of the social inertia: 1) its probability distribution, 2) its correlation with other properties, and 3) the correlations of the inertia between neighbors in the network. We also contrast these empirical results with the predictions of a recently proposed theoretical model for the growth of collaboration networks.

Ramasco, J J; Ramasco, Jose J.; Morris, Steven A.



Team Collaboration: Lessons Learned Report  

NASA Technical Reports Server (NTRS)

An Agency team collaboration pilot was conducted from July 2002 until June 2003 and then extended for an additional year. The objective of the pilot was to assess the value of collaboration tools and adoption processes as applied to NASA teams. In an effort to share knowledge and experiences, the lessons that have been learned thus far are documented in this report. Overall, the pilot has been successful. An entire system has been piloted - tools, adoption, and support. The pilot consisted of two collaboration tools, a team space and a virtual team meeting capability. Of the two tools that were evaluated, the team meeting tool has been more widely accepted. Though the team space tool has been met with a lesser degree of acceptance, the need for such a tool in the NASA environment has been evidenced. Both adoption techniques and support were carefully developed and implemented in a way that has been well received by the pilot participant community.

Arterberrie, Rhonda Y.; Eubanks, Steven W.; Kay, Dennis R.; Prahst, Stephen E.; Wenner, David P.



GeoCollaborative: Crisis Management  

NSDL National Science Digital Library

The GeoCollaborative brings together researchers interested in finding ways to develop information science and technology to support crisis management. Managing crisis events, such as hurricanes, forest fires, disease outbreaks, chemical spills, and terrorist attacks, involves gathering "geospatial information about the event itself, its causes, the people and infrastructure affected, resources available to respond, and more." The research team addresses "two fundamental problems that impede effective coordinated work with geospatial information." Working from a cognitive systems engineering approach, the group is developing geospatial information and technologies to address these challenges. The website provides an overview of GeoCollaborative's approach and a few selected publications.


Heartland AEA's Technology Infusion Collaborative  

NSDL National Science Digital Library

For this TIC presentation, Cappie will share various integrated technologies that aid visual art instruction, foster engagement and encourage collaboration and community. Some of the shared online resources will include social platforms, interactive posters and website use. Connections to the Visual Arts in the Iowa Core website will also be showcased. Technology Integration Matrix is a framework for ?defining and evaluating? whether use is active, collaborative, constructive, authentic and goal-directed. Technology Integration Matrix Art Educators of Iowa's Visual Arts in the Iowa Core website guides educators ...

Ms. Dobyns



Collaboration: Implications for Technologies to Support Remote Collaborative Work  

Microsoft Academic Search

This chapter analyzes why computers and telecommunications have not created computcr- mediated work environments for collaboration that are as successful as physically shared environments. Our goals are, first, to identify the mechanisms by which proxin~ity makes cnl- laboration easier, concentrating on the way it facilitates interpersollal interaction and aware- ness; and second, to evaluate how current computer-mediated communication technologies provide

Robert E. Kraut; Susan R. Fussell; Susan E. Brennan; Jane Siege


Improving Virtual Team Collaboration Outcomes through Collaboration Process Structuring  

ERIC Educational Resources Information Center

The ability to collaborate in a virtual team is a necessary skill set for today's knowledge workers and students to be effective in their work. Past research indicates that knowledge workers and students need to establish a formal process to perform work, develop clear goals and objectives, and facilitate better communication among team members.…

Dittman, Dawn R.; Hawkes, Mark; Deokar, Amit V.; Sarnikar, Surendra



Why Does Collaboration Work? Linking Positive Psychology and Collaboration  

ERIC Educational Resources Information Center

Authors in this special issue edited by Cook and Friend provide analyses of many important relationships within a school: teacher to teacher; teacher to paraprofessional, educators, and home caregivers; and whole-building systems. Their focus on collaboration prompted these authors to reflect on a possible theoretical mechanism behind the success…

Conoley, Jane Close; Conoley, Collie Wyatt



Collaborative double robust targeted maximum likelihood estimation.  


Collaborative double robust targeted maximum likelihood estimators represent a fundamental further advance over standard targeted maximum likelihood estimators of a pathwise differentiable parameter of a data generating distribution in a semiparametric model, introduced in van der Laan, Rubin (2006). The targeted maximum likelihood approach involves fluctuating an initial estimate of a relevant factor (Q) of the density of the observed data, in order to make a bias/variance tradeoff targeted towards the parameter of interest. The fluctuation involves estimation of a nuisance parameter portion of the likelihood, g. TMLE has been shown to be consistent and asymptotically normally distributed (CAN) under regularity conditions, when either one of these two factors of the likelihood of the data is correctly specified, and it is semiparametric efficient if both are correctly specified. In this article we provide a template for applying collaborative targeted maximum likelihood estimation (C-TMLE) to the estimation of pathwise differentiable parameters in semi-parametric models. The procedure creates a sequence of candidate targeted maximum likelihood estimators based on an initial estimate for Q coupled with a succession of increasingly non-parametric estimates for g. In a departure from current state of the art nuisance parameter estimation, C-TMLE estimates of g are constructed based on a loss function for the targeted maximum likelihood estimator of the relevant factor Q that uses the nuisance parameter to carry out the fluctuation, instead of a loss function for the nuisance parameter itself. Likelihood-based cross-validation is used to select the best estimator among all candidate TMLE estimators of Q(0) in this sequence. A penalized-likelihood loss function for Q is suggested when the parameter of interest is borderline-identifiable. We present theoretical results for "collaborative double robustness," demonstrating that the collaborative targeted maximum likelihood estimator is CAN even when Q and g are both mis-specified, providing that g solves a specified score equation implied by the difference between the Q and the true Q(0). This marks an improvement over the current definition of double robustness in the estimating equation literature. We also establish an asymptotic linearity theorem for the C-DR-TMLE of the target parameter, showing that the C-DR-TMLE is more adaptive to the truth, and, as a consequence, can even be super efficient if the first stage density estimator does an excellent job itself with respect to the target parameter. This research provides a template for targeted efficient and robust loss-based learning of a particular target feature of the probability distribution of the data within large (infinite dimensional) semi-parametric models, while still providing statistical inference in terms of confidence intervals and p-values. This research also breaks with a taboo (e.g., in the propensity score literature in the field of causal inference) on using the relevant part of likelihood to fine-tune the fitting of the nuisance parameter/censoring mechanism/treatment mechanism. PMID:20628637

van der Laan, Mark J; Gruber, Susan



Nonreaders Anonymous: Reading History Collaboratively.  

ERIC Educational Resources Information Center

Addresses the issue of teaching students in the U.S. history survey course to read historical works by shifting the focus from the lecture method to collaborative learning techniques. Describes various techniques that can be used in the classroom such as expert groups, Particulars into Generalizations (PIG), and making lists and evaluative…

Marcus, Robert D.



Collaborating with Forms in Nature  

ERIC Educational Resources Information Center

Taking students outside is a great opportunity to make art. In this article, the author describes how her students collaborated with forms in nature to create their own visual structures to communicate ideas. This lesson can be done on the beach, in a sand box on the school playground, in grassy areas, or nature can even be brought into the…

Castro, Aileen Pugliese



Assuring Quality in Collaborative Provision.  

ERIC Educational Resources Information Center

This bulletin is intended to help British further education colleges clarify their rationale for entering into collaborative programs, assess prospective partners, define and implement good practice at all stages of provision, and establish rigorous quality assurance procedures. Following an introduction, Further Education Funding Council…

Bocock, Jean; Edwards, Judith



NBII Collaboration with Guyra Paraguay  

USGS Multimedia Gallery

NBII and Guyra Paraguay are collaborating on two biodiversity informatics projects in Paraguay. NBII is providing funding and expertise in metadata, cataloguing, and information delivery. Guyra Paraguay is a small NGO specializing in species and landscape-level conservation. Near 26°34’52&...


Evaluating collaborative filtering recommender systems  

Microsoft Academic Search

Recommender systems have been evaluated in many, often incomparable, ways. In this article, we review the key decisions in evaluating collaborative filtering recommender systems: the user tasks being evaluated, the types of analysis and datasets being used, the ways in which prediction quality is measured, the evaluation of prediction attributes other than quality, and the user-based evaluation of the system

Jonathan L. Herlocker; Joseph A. Konstan; Loren G. Terveen; John T. Riedl



The concept of collaborative health.  


Based on empirical research about teamwork in human service organizations in Sweden, the concept of collaborative health (CH) encapsulates the physical, psychological and social health resources the individual uses in teamwork; resources which at the same time are influenced by the teamwork. My argument built on empirical research leading up to identifying and defining the core concept in this article, is that teamwork affects team members' health and this in turn affects the teamwork and its outcome. In this paper collaborative health is viewed from a social constructionism perspective and discussed in relation to earlier concepts developed in social psychology and working life research, including psychosocial stress and burnout. The paper also introduces the concept of functional synergy, which in this context is defined as the simultaneous presence of sharp goal-orientation and synergy in teamwork. The need for a holistic team theory is emphasized as a tool in research on teamwork. Such a theory relies on identifying sound and illuminating constituent concepts. I suggest that collaborative health could be a useful concept for better understanding the complex collaborative and co-operative teamwork of human service organizations of today. PMID:20807033

Sandberg, Håkan



Therapists Value of Interprofessional Collaboration  

ERIC Educational Resources Information Center

The work of occupational (OT), physical (PT), and recreational therapists (RT), as well as speech- language pathologists (SLP), is interrelated and requires effective teamwork and collaboration to optimize patient outcomes and satisfaction. Literature shows that health care professionals are ill prepared to work in an interprofessional manner due…

De Vries, Dawn R.



Session Management for Collaborative Applications  

E-print Network

management systems which are problematic: · Much work as gone toward "reinventing the session man- agementSession Management for Collaborative Applications W. Keith Edwards Graphics, Visualization-6266 Currently, developers typically implement subsystems to perform session

Edwards, Keith


Teaching through Collaborative Problem Solving.  

ERIC Educational Resources Information Center

Discussion of a prototype intelligent education system called WOMBAT (Weighted Objectives Method by Arguing with the Tutor) focuses on dialogue and negotiation in collaborative problem solving. The results of a formative evaluation, in which the system was used by 10 subjects who commented on various aspects of the design, are presented. (Contains…

Blandford, A. E.



Working Collaboratively on Topic Tasks.  

ERIC Educational Resources Information Center

Describes a study in which elementary school students were required to collaborate in studying a hedgerow, producing boundaries and sketches. Results stress the importance of talk in learning. The hedgerow lesson presented an ideal situation for developing personal knowledge through the explanatory discussion of information with peers. (SM)

Webb, Rosemary



The Contemporary Art of Collaboration  

ERIC Educational Resources Information Center

Predetermined assessment criteria and target levels threaten to constrain and limit teachers' desire to provide a balanced and innovative curriculum for their pupils. Through the collaborative production of annual installations, the fine art department at Trinity Catholic School has attempted to confound the effects of a comprehensive school's…

Horn, Sheridan



A Collaborative Electronic Laboratory Notebook  

Microsoft Academic Search

We have developed a secure, collaborative, web-based electronic notebook (EN) designed to provide researchers and students with a means to record and share their primary research notes and data. The Pacific Northwest National Laboratory (PNNL) Electronic Laboratory Notebook (ELN) supports a variety of common multimedia formats and can easily be extended to allow entry and display of custom data types.

James D. Myers; Elena S. Mendoza; Bonnie L. Hoopes; MH Hamza



Drama: An Interdisciplinary, Collaborative Exercise.  

ERIC Educational Resources Information Center

Teaching drama gave one instructor a chance to renew herself, and drama became an important part of a personal teaching renaissance. An elective class for grade 12 entitled "Humanities and the Arts" offered opportunity for collaborative teaching with colleagues in their areas of expertise. In a class on "Modern Drama" designed for honors students,…

Tomas, Linda


One-shot Collaborative Filtering  

Microsoft Academic Search

We propose a new one-shot collaborative filtering method. In contrast to the conventional methods, which predict unobserved ratings individually and independently, our method predicts all unobserved ratings simultaneously and with mu- tual dependence. With the proposed method, first for observed ratings, we compute empirical marginal distributions of the ratings over users and\\/or items. Then, for unrated data, these marginal distributions

Shuhei Kuwata; Naonori Ueda



Collaborative Stage Manual Part II

SEER Program Coding and Staging Manual 2004, Revision 1 Appendix C Site-Specific Coding Modules C-299 Collaborative Staging Codes Nasal Cavity C30.0 C30.0 Nasal cavity (excludes nose, NOS C76.0) Note: Laterality must be coded for this site,


Leading Partnerships: Competencies for Collaboration  

ERIC Educational Resources Information Center

Community colleges are constantly challenged to find new ways to meet the needs of multiple constituents. One strategy becoming more popular in addressing these pressing needs is partnerships and other forms of organizational collaboration, consortia, and networks. Partnerships can allow for resource sharing, creation of joint educational…

Amey, Marilyn J.



Library Collaboration Aids Global Research  

NASA Astrophysics Data System (ADS)

In the geosciences, organizational libraries and information centers are local sources for scientists, students, and members of the general public who are searching for current or historic information in their fields. They offer focused collections, rare materials, and knowledgeable librarians, but often issues caused by isolation and limited resources impede their ability to fulfill the researchers' needs. Unlike the local university libraries, these small special information centers are usually housed in the same building as their scientists' offices. To help overcome these problems of limited resources and isolation, while retaining the organizational focus and unique collections that are its strengths, the National Snow & Ice Data Center (NSIDC) Information Center has begun to collaborate with similar libraries and information centers. This project has three major steps: 1. Catalog sharing through internet-based links. 2. Resource sharing. 3. Expansion of collaboration. NSIDC is creating catalog links with a sister library, the Institute of Arctic and Alpine Research (INSTAAR) Information Center. Once the links are established, the two libraries will develop a plan for resource sharing and coordinated purchasing. This small collaborative effort will serve as a template for a network of special libraries within Colorado. Ultimately, they hope to expand the collaborative effort to small libraries with a similar focus around the globe. This poster will outline and graphically illustrate these steps, as well as provide a template for future expansion of the project.

Hicks, G. J.; Howard, A. L.; Sommer, S.



Multiage Grouping and Student Collaboration  

ERIC Educational Resources Information Center

The aim of this action research project was to investigate students' social preferences and pro-social interactions in a multiage, high school classroom in order to better understand how to group students to maximize learning and collaboration. According to many educational experts and previous inquiries, mixed-age learning groups introduce…

Cowan, Matthew



Computer-mediated collaborative learning  

Microsoft Academic Search

The study reported here investigates collaborative learning at the computer. Ten pairs of students were presented with a series of comprehension questions about Mary Shelley's novel Frankenstein or a Modern Prometheus along with a CD-ROM, Frankenstein Illuminated, containing the novel and a variety of source material. Five students worked with an interface based on a behaviorist model of instruction and

Ken Beatty; David Nunan



Computer-Mediated Collaborative Learning  

ERIC Educational Resources Information Center

The study reported here investigates collaborative learning at the computer. Ten pairs of students were presented with a series of comprehension questions about Mary Shelley's novel "Frankenstein or a Modern Prometheus" along with a CD-ROM, "Frankenstein Illuminated," containing the novel and a variety of source material. Five students worked with…

Beatty, Ken; Nunan, David




E-print Network

NEW HORIZONS UK-India Collaborative Research #12;RESEARCH COUNCILS UK INDIA Research Councils UK (RCUK) India, launched in 2008, brings together the best researchers in the UK and India through high-quality, high-impact research partnerships. RCUK India, based at the British High Commission in New Dehli, has

Berzins, M.


A Formula for Achieving Collaboration  

ERIC Educational Resources Information Center

The school library media center has an abundance of resources for teachers and students, but library media specialists are frequently isolated, sometimes invisible, members of the faculty. In addition, many teachers mistakenly think of library media specialists as "the copyright police" or "The Controllers of Content" instead of collaborators. It…

Hickel, Dorian



The Jesuit Collaborative Position Posting  

E-print Network

and social media. Manages Constant Contact account. Works with advancement director to develop new: The Jesuit Collaborative (TJC) is a 501(c)(3) non-profit organization that promotes the Spiritual Exercises in an Ignatian manner and to experience Ignatian spirituality through: training, formation, and building

Huang, Jianyu


Porous Medium Equation and Fast Diffusion Equation  

E-print Network

Porous Medium Equation and Fast Diffusion Equation as Gradient Systems Samuel Littig J¨urgen We show that the Porous Medium Equation and the Fast Diffusion Equa- tion, u - um = f, with m (0 and order preservation of solutions. MSC 2010: 35G25, 47J35, 47H99, 34G20 Keywords: Porous medium equation

Voigt, Jürgen


Incorporating Brokers within Collaboration Environments  

NASA Astrophysics Data System (ADS)

A collaboration environment, such as the integrated Rule Oriented Data System (iRODS -, provides interoperability mechanisms for accessing storage systems, authentication systems, messaging systems, information catalogs, networks, and policy engines from a wide variety of clients. The interoperability mechanisms function as brokers, translating actions requested by clients to the protocol required by a specific technology. The iRODS data grid is used to enable collaborative research within hydrology, seismology, earth science, climate, oceanography, plant biology, astronomy, physics, and genomics disciplines. Although each domain has unique resources, data formats, semantics, and protocols, the iRODS system provides a generic framework that is capable of managing collaborative research initiatives that span multiple disciplines. Each interoperability mechanism (broker) is linked to a name space that enables unified access across the heterogeneous systems. The collaboration environment provides not only support for brokers, but also support for virtualization of name spaces for users, files, collections, storage systems, metadata, and policies. The broker enables access to data or information in a remote system using the appropriate protocol, while the collaboration environment provides a uniform naming convention for accessing and manipulating each object. Within the NSF DataNet Federation Consortium project (, three basic types of interoperability mechanisms have been identified and applied: 1) drivers for managing manipulation at the remote resource (such as data subsetting), 2) micro-services that execute the protocol required by the remote resource, and 3) policies for controlling the execution. For example, drivers have been written for manipulating NetCDF and HDF formatted files within THREDDS servers. Micro-services have been written that manage interactions with the CUAHSI data repository, the DataONE information catalog, and the GeoBrain broker. Policies have been written that manage transfer of messages between an iRODS message queue and the Advanced Message Queuing Protocol. Examples of these brokering mechanisms will be presented. The DFC collaboration environment serves as the intermediary between community resources and compute grids, enabling reproducible data-driven research. It is possible to create an analysis workflow that retrieves data subsets from a remote server, assemble the required input files, automate the execution of the workflow, automatically track the provenance of the workflow, and share the input files, workflow, and output files. A collaborator can re-execute a shared workflow, compare results, change input files, and re-execute an analysis.

Rajasekar, A.; Moore, R.; de Torcy, A.



Learning to Collaborate by Collaborating: A Face-to-Face Collaborative Activity for Measuring and Learning Basics about Teamwork  

ERIC Educational Resources Information Center

In today's fast-changing business environment, teams have emerged as a requirement for business success. However, in schools and universities, students are usually not taught teamwork skills. In this paper, we introduce learning to collaborate by collaborating, a process that enables collaboration and teamwork skills to be taught and measured…

Cortez, C.; Nussbaum, M.; Woywood, G.; Aravena, R.



Supporting Sensemaking during Collocated Collaborative Visual Analytics  

E-print Network

Supporting Sensemaking during Collocated Collaborative Visual Analytics by Narges Mahyar B Narges Mahyar, 2014 University of Victoria All rights reserved. This dissertation may not be reproduced Supporting Sensemaking during Collocated Collaborative Visual Analytics by Narges Mahyar B.Sc., Azad

Tory, Melanie


Discourse models for collaboratively edited corpora  

E-print Network

This thesis focuses on computational discourse models for collaboratively edited corpora. Due to the exponential growth rate and significant stylistic and content variations of collaboratively edited corpora, models based ...

Chen, Erdong, S.M. Massachusetts Institute of Technology




EPA Science Inventory

The NIMH Treatment of Depression Collaborative Research Program (TDCRP) was a collaborative agreement between NIMH (Mood, Anxiety and Personality Disorder Research Branch) and three research sites, George Washington University, University of Oklahoma and the University of Pittsbu...


Enhancing distributed collaboration using sociometric feedback  

E-print Network

Distributed collaboration is often more challenging than co-located collaboration as many of the social signals become lost in computer-mediated communication. I propose a system that improves the performance of distributed ...

Kim, Taemie Jung



Collaborative Virtual Environment Standards: A Performance Evaluation  

E-print Network

1 Collaborative Virtual Environment Standards: A Performance Evaluation Jauvane C. de Oliveira of Information Technology and Engineering University of Ottawa, Canada [jauvane | shervin | georgana] Abstract Collaborative Virtual Environments are virtual reality spaces that enable participants

Ottawa, University of


I: Heat equation II: Schrdinger equation III: Wave equation IV: Radiative transfer equation Quantitative uniqueness for some PDE's  

E-print Network

I: Heat equation II: Schrödinger equation III: Wave equation IV: Radiative transfer equation;I: Heat equation II: Schrödinger equation III: Wave equation IV: Radiative transfer equation QUCP ! eT u0 L1(E) , u0 6= 0 #12;I: Heat equation II: Schrödinger equation III: Wave equation IV: Radiative

Phung, Kim-dang.- Le Laboratoire de Mathématiques


Delicate Balances: Collaborative Research in Language Education.  

ERIC Educational Resources Information Center

This book addresses the special demands, problems, challenges, and tensions of collaborative research. Following an introduction by the editors, the articles and their authors are: "Collaborative Research: More Questions Than Answers" (Carole Edelsky and Chris Boyd); "Interactive Writing on a Computer Network: A Teacher/Researcher Collaboration"…

Hudelson, Sarah J., Ed.; Lindfors, Judith Wells, Ed.


A virtual environment for collaborative assembly  

Microsoft Academic Search

To allow geographical dispersed engineers to perform an assembly task together, a virtual environment for collaborative assembly (VECA) has been developed to build a typical collaborative virtual assembly system. This presents the key parts of VECA, such as system architecture, HLA-based (high level architecture) communication and collaboration, motion guidance based on collision detection and assembly constraints recognition, data translation from

Xiaowu Chen; Nan Xu; Ying Li



Inside and outside: Teacher-Researcher Collaboration  

ERIC Educational Resources Information Center

In this paper, we discuss our approach to teacher-researcher collaboration and how it is similar and different from other models of teacher collaboration. Our approach to collaboration employed design experimentation (Brown, 1992; Design Based Research Collective, 2003) as a central method since it yields important findings for teachers'…

Herrenkohl, Leslie Rupert; Kawasaki, Keiko; DeWater, Lezlie Salvatore



Conditions for Successful Online Document Collaboration  

ERIC Educational Resources Information Center

With the development of Web 2.0 technologies, online document collaboration tools are becoming increasingly available, often free of charge. Although the technology is considered interactive and collaborative, it does not necessarily mean learners themselves will interact and collaborate. This paper discusses the conditions required for successful…

Vallance, Michael; Towndrow, Phillip A.; Wiz, Charles



Collaborative Learning (Grouping) in the Classroom  

NSDL National Science Digital Library

This brief article from the Charles A. Dana Center at the University of Texas at Austin describes the best practice of collaborative learning based on ideas from Dr. Spencer Kagan's book, Cooperative Learning. The article describes the basic four principles of collaborative learning and five thinking skills structures to implement collaborative learning.




Microsoft Academic Search

As government devolves its responsibilities, service providers are competing for resources, but are working collectively to solve public problems. The divergent requirements of branding and collaboration create a paradox that helps to explain why collaborations are hard to sustain. We integrate ideas from literature exploring public sector management, marketing, social identity, resource dependence, collaboration, and paradox management. Public administration is




Educators' Views of Collaboration with Scientists  

ERIC Educational Resources Information Center

This study investigated educators' views of collaboration with scientists, a baseline for COSEE Great Lakes efforts in facilitating dynamic collaborative relationships between Great Lakes researchers and educators. Three research questions guided the study: (1) how are educators in the Great Lakes region involved in collaboration with scientists,…

Kim, Chankook; Fortner, Rosanne



California Commissioning Collaborative: 2007 Program Plan  

E-print Network

California Commissioning Collaborative: 2007 Program Plan Presented by: Jim Parks, Chair CCC Board of Directors November 1, 2007 © California Commissioning Collaborative © California Commissioning Collaborative Mission and Organization • Improve... building and system performance by developing and promoting viable building commissioning practices in California – Make commissioning standard practice • Organized in 2000; non-profit status in 2004 • Board of Directors: utilities, state and federal...

Parks, J.



Exploiting technological opportunities: the timing of collaborations  

Microsoft Academic Search

High-technology companies that discover new technological opportunities face two critical decisions: whether and when to collaborate in exploiting these opportunities. Prior research has examined factors such as transaction costs that determine whether firms decide to collaborate. In this study, we aim to understand when firms collaborate in exploiting opportunities. To this end we study the history of 86 biopharmaceutical product-development

Riitta Katila; Paul Y. Mang



Online Collaborative Learning: Theory and Practice  

ERIC Educational Resources Information Center

"Online Collaborative Learning: Theory and Practice" provides a resource for researchers and practitioners in the area of online collaborative learning (also known as CSCL, computer-supported collaborative learning), particularly those working within a tertiary education environment. It includes articles of relevance to those interested in both…

Roberts, Tim, Ed.



Teacher and librarian collaboration: A qualitative study  

Microsoft Academic Search

The twenty-first century is marked by increased challenges in education and limited resources to address them. A solution proposed within school librarianship is teacher and librarian collaboration. This qualitative study examines the practices of highly collaborative teachers and librarians and identifies mechanisms that operate within schools to facilitate high-end collaboration. Five broad themes emerge from the data and identify essential

Patricia Montiel-Overall



Utilizing Collaboration Theory to Evaluate Strategic Alliances  

ERIC Educational Resources Information Center

Increasingly, "collaboration" between business, non-profit, health and educational agencies is being championed as a powerful strategy to achieve a vision otherwise not possible when independent entities work alone. But the definition of collaboration is elusive and it is often difficult for organizations to put collaboration into practice and…

Gajda, Rebecca



Quilt: a collaborative tool for cooperative writing  

Microsoft Academic Search

Quilt is a computer-based tool for collaborative writing, which provides annotation, messaging, computer conferencing, and notification facilities to support communication and information sharing among the collaborators on a document. In addition, extensible sets of social roles and communication types are used to provide views of a document tailored to individual collaborators or to other users of the document based upon

Robert S. Fish; Robert E. Kraut; Mary D. P. Leland; Michael Cohen



Attacks and Remedies in Collaborative Recommendation  

Microsoft Academic Search

Collaborative-filtering recommender systems are an electronic extension of everyday social recommendation behavior: people share opinions and decide whether or not to act on the basis of what they hear. Collaborative filtering lets you scale such interactions to groups of thousands or even millions. Publicly accessible user-adaptive systems such as collaborative recommender systems introduce security issues that must be solved if

Bamshad Mobasher; Robin D. Burke; Runa Bhaumik; Jeff J. Sandvig



Collaborative Online Projects in a Global Community  

Microsoft Academic Search

Collaborative online projects use communication technologies to communicate and collaborate effectively with schools in various locations to participate in projects which may be interdisciplinary or cross curricular in nature, with a defined purpose or theme in order to facilitate meaningful and authentic student learning. Collaborative online projects may use online communication technologies such as email, mailing lists, newsgroups, discussion boards,

Muriel Wells


Collaborative Technology Use by Healthcare Teams  

Microsoft Academic Search

This paper reviews the literature on the use of collaborative technologies by healthcare teams between 1980 and 2003. Multiple databases were searched with explicit inclusion criteria that yielded 17 conceptual and empirical papers. The discussions of these literatures centered on the individual, team, and technological dimensions of collaborative technology use within healthcare teams. Results show that collaborative healthcare technologies can

Mowafa Said Househ; Francis Y. Lau




E-print Network

Platform for Geographic Information Systems (GeoMIP), the GeoCollaborative Crisis Management platform for mobile collaboration and a web-portal for humanitarian relief logistics. The technologies developed collaboration between decision makers; support GIS use by mobile emergency management teams; and provide open

Giles, C. Lee


Aligning Collaborative and Culturally Responsive Evaluation Approaches  

ERIC Educational Resources Information Center

The authors, three African-American women trained as collaborative evaluators, offer a comparative analysis of collaborative evaluation (O'Sullivan, 2004) and culturally responsive evaluation approaches (Frierson, Hood, & Hughes, 2002; Kirkhart & Hopson, 2010). Collaborative evaluation techniques immerse evaluators in the cultural milieu of the…

Askew, Karyl; Beverly, Monifa Green; Jay, Michelle L.



Collaborative Partnerships between Educational Organizations: Extent of Independence-Interdependence and Satisfaction with Collaboration.  

ERIC Educational Resources Information Center

Collaboration between and among educational organizations is much discussed and often required by funding agencies, but measuring such collaboration is discussed much less. Collaboration has been characterized as a continuum of interdependence between partners that ranges from cooperation to coordination to collaboration. Seven features have been…

Meehan, Merrill L.; Wiersma, William; Riffle, M. Joy S.


Collaboration technology and space science  

NASA Technical Reports Server (NTRS)

A summary of available collaboration technologies and their applications to space science is presented as well as investigations into remote coaching paradigms and the role of a specific collaboration tool for distributed task coordination in supporting such teleoperations. The applicability and effectiveness of different communication media and tools in supporting remote coaching are investigated. One investigation concerns a distributed check-list, a computer-based tool that allows a group of people, e.g., onboard crew, ground based investigator, and mission control, to synchronize their actions while providing full flexibility for the flight crew to set the pace and remain on their operational schedule. This autonomy is shown to contribute to morale and productivity.

Leiner, Barry M.; Brown, R. L.; Haines, R. F.



Gearbox Reliability Collaborative Bearing Calibration  

SciTech Connect

NREL has initiated the Gearbox Reliability Collaborative (GRC) to investigate the root cause of the low wind turbine gearbox reliability. The GRC follows a multi-pronged approach based on a collaborative of manufacturers, owners, researchers and consultants. The project combines analysis, field testing, dynamometer testing, condition monitoring, and the development and population of a gearbox failure database. At the core of the project are two 750kW gearboxes that have been redesigned and rebuilt so that they are representative of the multi-megawatt gearbox topology currently used in the industry. These gearboxes are heavily instrumented and are tested in the field and on the dynamometer. This report discusses the bearing calibrations of the gearboxes.

van Dam, J.



Comparative analysis of collaboration networks  

SciTech Connect

In this paper we carry out a comparative analysis of the word network as the collaboration network based on the novel by M. Bulgakov 'Master and Margarita', the synonym network of the Russian language as well as the Russian movie actor network. We have constructed one-mode projections of these networks, defined degree distributions for them and have calculated main characteristics. In the paper a generation algorithm of collaboration networks has been offered which allows one to generate networks statistically equivalent to the studied ones. It lets us reveal a structural correlation between word network, synonym network and movie actor network. We show that the degree distributions of all analyzable networks are described by the distribution of q-type.

Progulova, Tatiana; Gadjiev, Bahruz [International University for Nature, Society and Man, 19 Universitetskaya Street, Dubna, 141980 (Russian Federation)



Therapists and researchers: advancing collaboration.  


Collaborative partnerships between community-based clinicians and academic researchers have the potential to improve the relevance, utility, and feasibility of research, as well as the effectiveness of practice. Collaborative partnership research from a variety of fields can inform the development and maintenance of effective partnerships. In this paper we present a conceptual model of research-community practice partnership derived from literature across disciplines and then illustrate application of this model to one case example. The case example is a multi-year partnership between an interdisciplinary group of community-based psychotherapists and a team of mental health researchers. This partnership was initiated to support federally funded research on community-based outpatient mental health care for children with disruptive behavior problems, but it has evolved to drive and support new intervention studies with different clinical foci. Lessons learned from this partnership process will be shared and interpreted in the context of the presented research-practice partnership model. PMID:24224554

Garland, Ann F; Brookman-Frazee, Lauren



Fermilab-Latin America collaboration  

SciTech Connect

Fermilab`s program of collaboration with Latin America was initiated by then-Director Leon Lederman about 1980. His goal was to aid Latin American physics, and particularly its particle physics; this latter aim is in keeping with the Laboratory`s particle physics mission. The reasons for collaboration between institutions in the US and Latin America are many, including geographic and cultural, together with the existence of many talented scientists and many centers of excellence in the region. There are also broader reasons; for example, it has been stated frequently that physics is the basis of much technology, and advanced technology is a necessity for a country`s development. There is nothing unique about Fermilab`s program; other US institutions can carry out similar activities, and some have carried out individual items in the past. On the Latin American side, such collaboration enables institutions there to carry out forefront physics research, and also to have the advantages of particle physics spin-offs, both in expertise in related technologies and in scientist training. In addition to particle physics, collaboration is possible in many other related areas. Although particle physics is frequently viewed as {open_quotes}big science{close_quotes}, all of the large research groups in the field are composed of many small university groups, each of which contributes to the experiment, the analysis and the physics. Fermilab is an international laboratory, open to all users; a research proposal is accepted on scientific merit and technical competence, not on the country of origin of the scientists making the proposal. Currently, of Fermilab`s approximately 1400 users, about 30% are from non-US institutions. It should be noted here that Fermilab`s funds, which come from the US government, are for particle physics only; however, there is some flexibility in interpretation of this.

Rubinstein, R.



Computer Support for Collaborative Designing  

Microsoft Academic Search

The purpose of the present study was to examine how collaborative designing could be facilitated by a new generation networked\\u000a learning environment (Future Learning Environment, FLE-Tools) and to analyze whether and how students working in the environment\\u000a were able to share their design process. The study was carried out by analyzing qualitatively knowledge posted to FLE-Tools’\\u000a database by three courses

Pirita Seitamaa-Hakkarainen; Anna-Mari Raunio; Asta Raami; Hanni Muukkonen; Kai Hakkarainen



Collaborative Learning Enhances Critical Thinking  

Microsoft Academic Search

Abstract: solve problems, and make decisionsAnuradha A. Gokhale is an Associate Professor at Western Illinois University in the Departmentof Industrial Education and Technology, and is currently a Visiting Associate Professor at IllinoisState University.-23-as a team. Therefore, the development and enhancement of critical-thinkingskills through collaborative learning is one of the primary goals of technologyeducation. The present research was designed to study

Anuradha A. Gokhale



ATBC Study - Research Collaboration Procedures

The two international partners of this project - the National Cancer Institute (NCI) and the National Institute for Health and Welfare of Finland (THL) - have primary responsibility for project research management, coordination, and oversight. The Nutritional Epidemiology Branch (NEB) represents the NCI in this regard. Study proposals for collaboration are submitted to the NCI or NPHI Principal Investigators (Dr. Albanes and Dr. Virtamo, respectively), and are reviewed at both institutions.


Collaborative Learning for Secure Logistics  

NSDL National Science Digital Library

The Collaborative Learning Environment (CLE) for Secure Logistics, a project of NSF's Advanced Technological Education program, has created these five learning modules for undergraduates. "Each of the modules address a new technology in operational use by commercial and military organizations for securing global supply chains worldwide." The modules are: Post 9/11 Regulatory Environment, Spatial Logistics Technologies, RFID Online Aviation Module, EPCglobal: Standards for a Secure World, and Securing the Global Supply Chain.


Scope on Safety : Collaborating safely  

NSDL National Science Digital Library

With the advent of inclusion legislation such as the Individuals with Disabilities Education Act (IDEA) or PL 105-17 Reauthorization Action of 1997, many schools have focused on teaching partnerships between regular education and special education teachers. Science departments have been no exception to the trend toward team-teaching. This article describes five of the most popular models of team teaching. In addition, the legal implications and science safety issues concerning collaboration are addressed in this article.

Ken Roy



Providers collaborate to reduce readmissions.  


By working together and meeting regularly, San Francisco Bay-area hospitals and post-acute partners have prevented an estimated 4,000 readmissions. The program included education for participating hospitals on evidence-based readmission reduction models and other available tools. Hospitals analyzed their readmission data and determined which patients were coming back and why. Representatives of hospitals and post-acute providers meet regularly and collaborate on better patient care. PMID:24800408



Collaborative handheld gaming in education  

Microsoft Academic Search

This project describes the trialling of a new form of cooperative learning strategy, in the form of a game known as EcoRangers. EcoRangers is a multi?player game designed to run on mobile phones, written specifically for education. EcoRangers is one of the first, if not the world's first, instances of this totally new genre of pedagogical tools (i.e. collaborative handheld

Kenneth Y. T. Lim; Jason Y. Z. Wang



Advanced engineering environment collaboration project.  

SciTech Connect

The Advanced Engineering Environment (AEE) is a model for an engineering design and communications system that will enhance project collaboration throughout the nuclear weapons complex (NWC). Sandia National Laboratories and Parametric Technology Corporation (PTC) worked together on a prototype project to evaluate the suitability of a portion of PTC's Windchill 9.0 suite of data management, design and collaboration tools as the basis for an AEE. The AEE project team implemented Windchill 9.0 development servers in both classified and unclassified domains and used them to test and evaluate the Windchill tool suite relative to the needs of the NWC using weapons project use cases. A primary deliverable was the development of a new real time collaborative desktop design and engineering process using PDMLink (data management tool), Pro/Engineer (mechanical computer aided design tool) and ProductView Lite (visualization tool). Additional project activities included evaluations of PTC's electrical computer aided design, visualization, and engineering calculations applications. This report documents the AEE project work to share information and lessons learned with other NWC sites. It also provides PTC with recommendations for improving their products for NWC applications.

Lamph, Jane Ann; Pomplun, Alan R.; Kiba, Grant W.; Dutra, Edward G.; Dankiewicz, Robert J.; Marburger, Scot J.



Burgers Equation Margaret Beck  

E-print Network

Burgers Equation Margaret Beck Department of Mathematics Heriot-Watt University Edinburgh United Kingdom Synonyms Burgers' equation; inviscid Burgers equation; viscous Burgers equation. Mathematic Subject Classification 35K55; 35L60; 35L65; 35Q35. Short Definition Burgers equation is the scalar partial

Beck, Margaret


Solving Single Step Equations  

NSDL National Science Digital Library

This is to practice and review single step equations. Have fun. Complete the following two sites. Follow the directions given for each site. One-Step Equations Add/Subtract One-Step Equations Mult/Division When you have finished the sites above, enter equation buster and work through level one. Equation buster ...

Ms. Reddish



International Collaboration for Venus Exploration  

NASA Astrophysics Data System (ADS)

The Venus Exploration Analysis Group (VEXAG) was established by NASA in July 2005 to identify scientific priorities and strategy for exploration of Venus. From the outset, VEXAG has been open to the international community participation and has followed the progress of the ESA Venus Express Mission and the JAXA Akasuki mission as well exploring potential broad international partnerships for Venus exploration through coordinated science and missions. This paper discussed three mechanisms through which these collaborations are being explored in which VEXAG members participate One pathway for international collaboration has been through COSPAR. The International Venus Exploration Working Group (IVEWG) was formed during the 2012 COSPAR general assembly in Mysore, India. Another potentially significant outcome has been the IVEWG’s efforts to foster a formal dialog between IKI and NASA/PSD on the proposed Venera D mission resulting in a meeting in June 2013 to be followed by a discussion at the 4MS3 conference in October 2013. This has now resulted in an agreement between NASA/PSD and IKI to form a joint Science Definition Team for Venera D. A second pathway has been through an international focus on comparative climatology. Scientists from the established space faring nations participated in a first international conference on Comparative Climatology for Terrestrial Planet (CCTP) in Boulder Colorado in June 2012 sponsored by several international scientific organizations. A second conference is planned for 2015. The Planetary Robotics Exploration Coordinating Group (PRECG) of International Academy of Astronautics (IAA) the IAA has been focusing on exploring affordable contributions to the robotic exploration by non-space-faring nations wishing to get involved in planetary exploration. PRECG has sponsored a two year study of Comparative Climatology for which Venus is the focal point and focused on engaging nations without deep space exploration capabilities. A third area of interchange has been the International Planetary Probe Workshop (IPPW) , now in its eleventh year, which brings together scientists, technologists and mission designers interested in the exploration of planets with atmospheres and particularly in the challenges of entry, descent and landing and sustained flight on other planets. IPPW has been an opportunity for developing the collaborations at a grass roots level. With both NASA and ESA favoring competitive rather than strategic approaches for selecting planetary missions (except for Moon and Mars), future collaboration on Venus exploration will involve flexible partnerships. However, international standards for proximity communication frequencies and protocols will be vital to international collaboration.

Cutts, James; Limaye, Sanjay; Zasova, Ludmila; Wilson, Colin; Ocampo, Adriana; Glaze, Lori; Svedhem, H.; Nakamura, Masato; Widemann, Thomas


Designing Facilities for Collaborative Operations  

NASA Technical Reports Server (NTRS)

A methodology for designing operational facilities for collaboration by multiple experts has begun to take shape as an outgrowth of a project to design such facilities for scientific operations of the planned 2003 Mars Exploration Rover (MER) mission. The methodology could also be applicable to the design of military "situation rooms" and other facilities for terrestrial missions. It was recognized in this project that modern mission operations depend heavily upon the collaborative use of computers. It was further recognized that tests have shown that layout of a facility exerts a dramatic effect on the efficiency and endurance of the operations staff. The facility designs (for example, see figure) and the methodology developed during the project reflect this recognition. One element of the methodology is a metric, called effective capacity, that was created for use in evaluating proposed MER operational facilities and may also be useful for evaluating other collaboration spaces, including meeting rooms and military situation rooms. The effective capacity of a facility is defined as the number of people in the facility who can be meaningfully engaged in its operations. A person is considered to be meaningfully engaged if the person can (1) see, hear, and communicate with everyone else present; (2) see the material under discussion (typically data on a piece of paper, computer monitor, or projection screen); and (3) provide input to the product under development by the group. The effective capacity of a facility is less than the number of people that can physically fit in the facility. For example, a typical office that contains a desktop computer has an effective capacity of .4, while a small conference room that contains a projection screen has an effective capacity of around 10. Little or no benefit would be derived from allowing the number of persons in an operational facility to exceed its effective capacity: At best, the operations staff would be underutilized; at worst, operational performance would deteriorate. Elements of this methodology were applied to the design of three operations facilities for a series of rover field tests. These tests were observed by human-factors researchers and their conclusions are being used to refine and extend the methodology to be used in the final design of the MER operations facility. Further work is underway to evaluate the use of personal digital assistant (PDA) units as portable input interfaces and communication devices in future mission operations facilities. A PDA equipped for wireless communication and Ethernet, Bluetooth, or another networking technology would cost less than a complete computer system, and would enable a collaborator to communicate electronically with computers and with other collaborators while moving freely within the virtual environment created by a shared immersive graphical display.

Norris, Jeffrey; Powell, Mark; Backes, Paul; Steinke, Robert; Tso, Kam; Wales, Roxana



Collaborative Clustering for Sensor Networks  

NASA Technical Reports Server (NTRS)

Traditionally, nodes in a sensor network simply collect data and then pass it on to a centralized node that archives, distributes, and possibly analyzes the data. However, analysis at the individual nodes could enable faster detection of anomalies or other interesting events, as well as faster responses such as sending out alerts or increasing the data collection rate. There is an additional opportunity for increased performance if individual nodes can communicate directly with their neighbors. Previously, a method was developed by which machine learning classification algorithms could collaborate to achieve high performance autonomously (without requiring human intervention). This method worked for supervised learning algorithms, in which labeled data is used to train models. The learners collaborated by exchanging labels describing the data. The new advance enables clustering algorithms, which do not use labeled data, to also collaborate. This is achieved by defining a new language for collaboration that uses pair-wise constraints to encode useful information for other learners. These constraints specify that two items must, or cannot, be placed into the same cluster. Previous work has shown that clustering with these constraints (in isolation) already improves performance. In the problem formulation, each learner resides at a different node in the sensor network and makes observations (collects data) independently of the other learners. Each learner clusters its data and then selects a pair of items about which it is uncertain and uses them to query its neighbors. The resulting feedback (a must and cannot constraint from each neighbor) is combined by the learner into a consensus constraint, and it then reclusters its data while incorporating the new constraint. A strategy was also proposed for cleaning the resulting constraint sets, which may contain conflicting constraints; this improves performance significantly. This approach has been applied to collaborative clustering of seismic and infrasonic data collected by the Mount Erebus Volcano Observatory in Antarctica. Previous approaches to distributed clustering cannot readily be applied in a sensor network setting, because they assume that each node has the same view of the data set. A view is the set of features used to represent each object. When a single data set is partitioned across several computational nodes, distributed clustering works; all objects have the same view. But when the data is collected from different locations, using different sensors, a more flexible approach is needed. This approach instead operates in situations where the data collected at each node has a different view (e.g., seismic vs. infrasonic sensors), but they observe the same events. This enables them to exchange information about the likely cluster membership relations between objects, even if they do not use the same features to represent the objects.

Wagstaff. Loro :/; Green Jillian; Lane, Terran



Supporting Dynamic Ad hoc Collaboration Capabilities  

SciTech Connect

Modern HENP experiments such as CMS and Atlas involve as many as 2000 collaborators around the world. Collaborations this large will be unable to meet often enough to support working closely together. Many of the tools currently available for collaboration focus on heavy-weight applications such as videoconferencing tools. While these are important, there is a more basic need for tools that support connecting physicists to work together on an ad hoc or continuous basis. Tools that support the day-to-day connectivity and underlying needs of a group of collaborators are important for providing light-weight, non-intrusive, and flexible ways to work collaboratively. Some example tools include messaging, file-sharing, and shared plot viewers. An important component of the environment is a scalable underlying communication framework. In this paper we will describe our current progress on building a dynamic and ad hoc collaboration environment and our vision for its evolution into a HENP collaboration environment.

Agarwal, Deborah A.; Berket, Karlo



Basic lubrication equations  

NASA Technical Reports Server (NTRS)

Lubricants, usually Newtonian fluids, are assumed to experience laminar flow. The basic equations used to describe the flow are the Navier-Stokes equation of motion. The study of hydrodynamic lubrication is, from a mathematical standpoint, the application of a reduced form of these Navier-Stokes equations in association with the continuity equation. The Reynolds equation can also be derived from first principles, provided of course that the same basic assumptions are adopted in each case. Both methods are used in deriving the Reynolds equation, and the assumptions inherent in reducing the Navier-Stokes equations are specified. Because the Reynolds equation contains viscosity and density terms and these properties depend on temperature and pressure, it is often necessary to couple the Reynolds with energy equation. The lubricant properties and the energy equation are presented. Film thickness, a parameter of the Reynolds equation, is a function of the elastic behavior of the bearing surface. The governing elasticity equation is therefore presented.

Hamrock, B. J.; Dowson, D.



The Myth of Global Science Collaboration - Collaboration patterns in epistemic communities  

E-print Network

Scientific collaboration is often perceived as a joint global process that involves researchers worldwide, regardless of their place of work and residence. Globalization of science, in this respect, implies that collaboration among scientists takes place along the lines of common topics and irrespective of the spatial distances between the collaborators. The networks of collaborators, termed 'epistemic communities', should thus have a space-independent structure. This paper shows that such a notion of globalized scientific collaboration is not supported by empirical data. It introduces a novel approach of analyzing distance-dependent probabilities of collaboration. The results of the analysis of six distinct scientific fields reveal that intra-country collaboration is about 10-50 times more likely to occur than international collaboration. Moreover, strong dependencies exist between collaboration activity (measured in co-authorships) and spatial distance when confined to national borders. However, the fact th...

Hennemann, Stefan; Liefner, Ingo




E-print Network

began in 1675, when Gottfried Wilhelm von Leibniz (1646-1716) wrote the equation: x dx = (1/2)x2 . [16 are determined by recurrence-formulae. In 1682, Leibniz became a collaborator on the new Leipzig periodical, Acta Bernoulli (1654-1705] wrote Leibniz in 1687 requesting initiation into the mysteries of the new analysis

Leite, Maria


The HotQCD Equation of State  

SciTech Connect

We present results from recent calculations of the QCD equation of state by the HotQCD Collaboration and review the implications for hydrodynamic modeling. The equation of state of QCD at zero baryon density was calculated on a lattice of dimensions 32{sup 3} x 8 with m{sub l} = 0.1 m{sub s} (corresponding to a pion mass of {approx}220 MeV) using two improved staggered fermion actions, p4 and asqtad. Calculations were performed along lines of constant physics using more than 100M cpu-hours on BG/L supercomputers at LLNL, NYBlue, and SDSC. We present parameterizations of the equation of state suitable for input into hydrodynamics models of heavy ion collisions.

Soltz, R A



Polymorphic collaboration in the global grid  

NASA Astrophysics Data System (ADS)

Next generation collaborative systems must be able to represent the same information in different forms on a broad spectrum of devices and resources from low end personal digital assistants (PDA) to high performance computers (HPC). Users might be on a desktop then switch to a laptop and then to a PDA while accessing the global grid. The user preference profile for a collaboration session should be capable of moving with them as well as be automatically adjusted for the device type. Collaborative systems must be capable of representing the same information in many forms for different domains and on many devices and thus be polymorphic. Polymorphic collaboration will provide an ability for multiple heterogeneous resources (human to human, human to machine and machine to machine) to share information and activities, as well as the ability to regulate collaborative sessions based on client characteristics and needs; reuse user profiles, tool category choices, and settings in future collaboration session by same or different users; use intelligent agents to assist collaborative systems in learning user/resource preferences and behaviors, and autonomously derive optimal information to provide to users and decision makers. This paper discusses ongoing research in next generation collaborative environments with the goal of making electronic collaboration as easy to use as the telephone - collaboration at the touch of the screen.

McQuay, William K.



A macroscopic analytical model of collaboration in distributed robotic systems.  


In this article, we present a macroscopic analytical model of collaboration in a group of reactive robots. The model consists of a series of coupled differential equations that describe the dynamics of group behavior. After presenting the general model, we analyze in detail a case study of collaboration, the stick-pulling experiment, studied experimentally and in simulation by Ijspeert et al. [Autonomous Robots, 11, 149-171]. The robots' task is to pull sticks out of their holes, and it can be successfully achieved only through the collaboration of two robots. There is no explicit communication or coordination between the robots. Unlike microscopic simulations (sensor-based or using a probabilistic numerical model), in which computational time scales with the robot group size, the macroscopic model is computationally efficient, because its solutions are independent of robot group size. Analysis reproduces several qualitative conclusions of Ijspeert et al.: namely, the different dynamical regimes for different values of the ratio of robots to sticks, the existence of optimal control parameters that maximize system performance as a function of group size, and the transition from superlinear to sublinear performance as the number of robots is increased. PMID:11911788

Lerman, K; Galstyan, A; Martinoli, A; Ijspeert, A



Other NCI Initiatives and Collaborations

Phase 2 N01 Program The Phase 2 N01 Program is a CTEP-CIP collaboration includes 7 contractors, most of whom consist of multi-institutional consortia, and includes a total of 22 NCI-designated Cancer Centers. These sites carry out early clinical trials with CTEP and CIP-held IND agents, with an emphasis on phase 2 trials, but including phase 1 trials as well. These trials include the evaluation of novel imaging agents and methods to enhance the evaluation of novel therapeutics.


Collaborative research on experimental astrophysics  

SciTech Connect

In association with the above subcontract, the Space Sciences Laboratory of the University of California at Berkeley (UCB) has pursued a program of experimental astrophysics research in collaboration with scientists at the Laboratory for Experimental Astrophysics of the Lawrence Livermore National Laboratory. This research program encompassed a number of disparate areas, which are: design and development of the GRATIS balloon payload; the multi-object spectrograph; investigation of the use of cryogenic detectors for non-dispersive X-ray spectroscopy; laboratory astrophysics investigations; and astronomical data analysis.

Not Available



Connective tissue growth factor gene expression and decline in renal function in lupus nephritis  

PubMed Central

In lupus nephritis (LN), kidney inflammation may be followed by fibrosis and progressive decline in function. Transforming growth factor (TGF)-? is a notable mediator of fibrosis, but it has other beneficial roles, thus indicating a need for alternate therapeutic targets for inhibition of fibrosis. Connective tissue growth factor (CTGF) acts as a downstream mediator of TGF-? in promoting fibrosis, without mediating the immunosuppressive effects of TGF-?. Animal studies show that CTGF may have important roles in renal fibrosis, but data are limited in human subjects. The present study tested the hypothesis that renal CTGF mRNA expression is related to TGF-?1 and collagen I expression and is predictive of renal function deterioration in patients with LN (n=39). Gene expression was measured using multiplex real-time quantitative RT-PCR and renal function was estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) glomerular filtration rate (GFR) equation. Decline in GFR was assessed by regression of GFR at biopsy to 1 year following biopsy. CTGF mRNA expression was significantly correlated with TGF-?1 and collagen I. GFR at biopsy was 89.2±39.2 ml/ min. Renal CTGF mRNA expression correlated inversely with baseline GFR. Renal CTGF mRNA was significantly higher in patients with moderate to severe CKD compared to those in the milder CKD group (low GFR 4.92±4.34 vs. high GFR 1.52±1.94, p<0.005). CTGF mRNA was also higher in patients with subsequent decline in GFR [GFR decline (5.19±4.46) vs. no GFR decline (1.79±1.97); P<0.01]. In conclusion, renal expression of CTGF was positively related to TGF-?1 and collagen I in patients with LN. Furthermore, high CTGF mRNA expression was associated with poor GFR at baseline and subsequent deterioration of kidney function. CTGF expression in the kidney may serve as an early marker for renal disease progression and could be evaluated as a target for therapeutic intervention to prevent renal failure in LN. PMID:22969957




Fluctuation between Fasting and 2-H Postload Glucose State Is Associated with Chronic Kidney Disease in Previously Diagnosed Type 2 Diabetes Patients with HbA1c ? 7%  

PubMed Central

Objective To investigate how the glucose variability between fasting and a 2-h postload glucose state (2-h postload plasma glucose [2hPG]-fasting plasma glucose [FPG]) is associated with chronic kidney disease (CKD) in middle-aged and elderly Chinese patients previously diagnosed with type 2 diabetes. Design and Methods This cross-sectional study included 1054 previously diagnosed type 2 diabetes patients who were 40 years of age and older. First, the subjects were divided into two groups based on a glycated hemoglobin (HbA1c) value of 7%. Each group was divided into two subgroups, with or without CKD. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was used to estimate the glomerular filtration rate (GFR). CKD was defined as eGFR<60 mL/min/1.73 m2. Multiple linear regression analysis was used to estimate the association between the 2hPG-FPG and eGFR. The 2hPG-FPG value was divided into four groups increasing in increments of 36 mg/dl (2.0 mmol/L): 0–72, 72–108, 108–144 and ?144 mg/dl, based on the quartiles of patients with HbA1c levels ?7%; then, binary logistic regression analysis was used to investigate the association between 2hPG-FPG and the risk of CKD. Results In the patients with HbA1c levels ?7%, the 2hPG-FPG was significantly associated with decreased eGFR and an increased risk of CKD independent of age, gender, body mass index (BMI), systolic blood pressure (BP), diastolic BP, smoking, and drinking, as well as fasting insulin, cholesterol, triglyceride, and HbA1c levels. The patients with 2hPG-FPG values ?144 mg/dl showed an increased odds ratio (OR) of 2.640 (P?=?0.033). Additionally, HbA1c was associated with an increased risk of CKD in patients with HbA1c values ?7%. Conclusions The short-term glucose variability expressed by 2hPG-FPG is closely associated with decreased eGFR and an increased risk of CKD in patients with poor glycemic control (HbA1c?7%). PMID:25047354

Ma, Zeqiang; Yang, Weifang; Li, Chengqiao; Zhang, Xiuping; Hou, Xinguo; Sun, Yu; Lin, Peng; Liang, Kai; Gong, Lei; Wang, Meijian; Liu, Fuqiang; Li, Wenjuan; Yan, Fei; Yang, Junpeng; Wang, Lingshu; Tian, Meng; Liu, Jidong; Zhao, Ruxing; Chen, Li



Fluctuation between Fasting and 2-H Postload Glucose State Is Associated with Glomerular Hyperfiltration in Newly Diagnosed Diabetes Patients with HbA1c < 7%  

PubMed Central

Objective To investigate whether fluctuations between the fasting and 2-h postload glucose ([2-hPBG]-fasting blood glucose [FBG]) states are associated with glomerular hyperfiltration (GHF) in middle-aged and elderly Chinese patients with newly diagnosed diabetes. Design and Methods In this study, we included 679 newly diagnosed diabetes patients who were ?40 years old. All the subjects were divided into two groups; those with HbA1c<7% and ?7%. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was used to estimate the glomerular filtration rate (GFR). GHF was defined as an eGFR ? the 90th percentile. First, a multiple linear regression analysis was used to estimate the association of 2-hPBG-FBG with eGFR. Then, a generalized additive model was used to explore the possible nonlinear relationship between 2-hPBG-FBG and eGFR. Next, the 2-hPBG-FBG values were divided into four groups as follows: 0–36, 36–72, 72–108 and ?108 mg/dl. Finally, a multiple logistic regression analysis was used to investigate the association of 2-hPBG-FBG with the risk of GHF. Results For the group with HbA1c<7%, the eGFR and the percentage of GHF were significantly higher compared with the group with HbA1c?7%. After adjusting for age, gender, body mass index (BMI), systolic blood pressure (BP), diastolic BP, fasting insulin, cholesterol, triglycerides, smoking, drinking and glycated hemoglobin (HbA1c), 2-hPBG-FBG was significantly associated with increased eGFR and an increased risk of GHF (the GHF risk increased by 64.9% for every 36.0 mg/dl [2.0 mmol/L] 2-hPBG-FBG increase) only in those patients with HbA1c<7%. Additionally, 2-hPBG-FBG and eGFR showed a nonlinear association (P<0.001). Conclusions Increased fluctuations between the fasting and 2-h postload glucose states are closely associated with increased eGFR and an increased risk of GHF in newly diagnosed diabetes patients with HbA1c<7%. PMID:25360521

Hou, Xinguo; Wang, Chuan; Wang, Shaoyuan; Yang, Weifang; Ma, Zeqiang; Wang, Yulian; Li, Chengqiao; Li, Mei; Zhang, Xiuping; Zhao, Xiangmin; Sun, Yu; Song, Jun; Lin, Peng; Liang, Kai; Gong, Lei; Wang, Meijian; Liu, Fuqiang; Li, Wenjuan; Yan, Fei; Yang, Junpeng; Wang, Lingshu; Tian, Meng; Liu, Jidong; Zhao, Ruxing; Chen, Shihong; Chen, Li



CKD and Cardiovascular Disease in the Atherosclerosis Risk in Communities (ARIC) Study: Interactions With Age, Sex, and Race  

PubMed Central

Background Estimated glomerular filtration rate (eGFR) and albuminuria are central for diagnosis, staging, and risk evaluation in chronic kidney disease (CKD). Universal thresholds regardless of age, sex, and race are recommended, but relatively little is known about how these demographic factors alter the relationship of eGFR and albuminuria to cardiovascular outcomes. Study Design Observational cohort study. Setting & Participants 11,060 whites and blacks aged 52–75 years in the Atherosclerosis Risk in Communities (ARIC) Study with median follow-up of 11.2 years. Predictors eGFR by the CKD Epidemiology Collaboration (CKD-EPI) creatinine equation (reference, 95 ml/min/1.73 m2) and urinary albumin-creatinine ratio (ACR) (reference, at 5 mg/g). Outcomes Cardiovascular events (coronary disease, stroke, and heart failure) and all-cause mortality. Measurements Adjusted HRs associated with eGFR and ACR in subgroups according to age, sex and race. Results Cardiovascular risk significantly increased at eGFR <70 ml/min/1.73 m2 in all subgroups according to age (< 65 vs. ?65 years), sex, and race (P for interaction >0.2 for these subgroups; e.g., at eGFR 30 ml/min/1.73 m2, the adjusted HR was 2.19 [95% CI, 1.10–4.35] at age 52–64 years vs. 2.23 [95% CI, 1.33–3.72] at age 65–75 years). Results were similar for mortality. Log(ACR) was linearly associated with cardiovascular risk without threshold effects in all subgroups, with some quantitative interactions. HRs according to ACR tended to be lower in men vs. women (e.g., at ACR 40 mg/g, 1.18 [95% CI, 0.98–1.41] vs. 1.77 [95% CI, 1.45–2.15]) and in older vs. younger population (1.24 [95% CI, 1.04–1.49] vs. 1.73 [95% CI, 1.42–2.12]) (P for interaction <0.01 for sex and age). Less evident interactions were observed for mortality. Limitations Single measurement of eGFR with creatinine and ACR and relatively narrow age range. Conclusions The associations of eGFR and ACR with cardiovascular events were largely similar, with some quantitative interactions, among age, sex, and racial subgroups, generally supporting universal thresholds of GFR and ACR for CKD definition/staging. PMID:23769137

Hui, Xuan; Matsushita, Kunihiro; Sang, Yingying; Ballew, Shoshana H.; Fülöp, Tibor; Coresh, Josef



Tie strength distribution in scientific collaboration networks  

NASA Astrophysics Data System (ADS)

Science is increasingly dominated by teams. Understanding patterns of scientific collaboration and their impacts on the productivity and evolution of disciplines is crucial to understand scientific processes. Electronic bibliography offers a unique opportunity to map and investigate the nature of scientific collaboration. Recent studies have demonstrated a counterintuitive organizational pattern of scientific collaboration networks: densely interconnected local clusters consist of weak ties, whereas strong ties play the role of connecting different clusters. This pattern contrasts itself from many other types of networks where strong ties form communities while weak ties connect different communities. Although there are many models for collaboration networks, no model reproduces this pattern. In this paper, we present an evolution model of collaboration networks, which reproduces many properties of real-world collaboration networks, including the organization of tie strengths, skewed degree and weight distribution, high clustering, and assortative mixing.

Ke, Qing; Ahn, Yong-Yeol



Shared Understanding for Collaborative Control  

SciTech Connect

This paper presents results from three experiments in which human operators were teamed with a mixed-initiative robot control system to accomplish various indoor search and exploration tasks. By assessing human workload and error together with overall performance, these experiments provide an objective means to contrast different modes of robot autonomy and to evaluate both the usability of the interface and the effectiveness of autonomous robot behavior. The first experiment compares the performance achieved when the robot takes initiative to support human driving with the opposite case when the human takes initiative to support autonomous robot driving. The utility of robot autonomy is shown through achievement of better performance when the robot is in the driver’s seat. The second experiment introduces a virtual three-dimensional (3-D) map representation that supports collaborative understanding of the task and environment. When used in place of video, the 3-D map reduced operator workload and navigational error. By lowering bandwidth requirements, use of the virtual 3-D interface enables long-range, nonline-of-sight communication. Results from the third experiment extend the findings of experiment 1 by showing that collaborative control can increase performance and reduce error even when the complexity of the environment is increased and workload is distributed amongst multiple operators.

David Bruemmer; Douglas Few; Ronald Boring; Julie Marble; Miles Walton; Curtis Nielsen



Measuring competence: collaboration for safety.  


Few options are available to nursing regulatory boards for the evaluation of nursing competency in registered nurses who are reported for practice breakdown. To address this deficiency, the authors conducted funded research through collaboration between their respective institutions: a state nursing regulatory board, a community college nursing program, and a state university nursing program. Through this collaboration, a competency evaluation process that used high-fidelity simulation was developed and was called the nursing performance profile (NPP). The NPP process consisted of evaluation of videotaped performances of registered nurses providing simulated patient care in three successive situations. Nurses who were experienced in both practice and supervision rated the performances according to scoring guidelines developed by the authors. Findings showed that the NPP process has the potential to (1) provide regulators, educators, and employers with a quantitative picture of nurse performance across nine areas essential to safe practice, and (2) establish a basis for recommending a specific remediation plan or continuing professional development. PMID:23181406

Randolph, Pamela K; Hinton, Janine E; Hagler, Debra; Mays, Mary Z; Kastenbaum, Beatrice; Brooks, Ruth; DeFalco, Nick; Miller, Kathy; Weberg, Dan



Distributed and collaborative synthetic environments  

NASA Technical Reports Server (NTRS)

Fast graphics workstations and increased computing power, together with improved interface technologies, have created new and diverse possibilities for developing and interacting with synthetic environments. A synthetic environment system is generally characterized by input/output devices that constitute the interface between the human senses and the synthetic environment generated by the computer; and a computation system running a real-time simulation of the environment. A basic need of a synthetic environment system is that of giving the user a plausible reproduction of the visual aspect of the objects with which he is interacting. The goal of our Shastra research project is to provide a substrate of geometric data structures and algorithms which allow the distributed construction and modification of the environment, efficient querying of objects attributes, collaborative interaction with the environment, fast computation of collision detection and visibility information for efficient dynamic simulation and real-time scene display. In particular, we address the following issues: (1) A geometric framework for modeling and visualizing synthetic environments and interacting with them. We highlight the functions required for the geometric engine of a synthetic environment system. (2) A distribution and collaboration substrate that supports construction, modification, and interaction with synthetic environments on networked desktop machines.

Bajaj, Chandrajit L.; Bernardini, Fausto



Towards a Framework for Collaborative Innovation  

Microsoft Academic Search

This paper presents the Unified Collaborative Innovation Framework (UCIF) developed in the European Integrated Project Laboranova\\u000a (Collaboration Environment for Strategic Innovation). The Framework aims at the support of the early stage innovation process\\u000a by means of collaborative working environments. As implied by its name, UCIF is a framework, which by definition is a conceptual\\u000a construct acting as the skeleton and

Heiko Duin; Jacob Jaskov; Alexander Hesmer; Klaus-Dieter Thoben


Computational Approaches for Predicting Biomedical Research Collaborations  

PubMed Central

Biomedical research is increasingly collaborative, and successful collaborations often produce high impact work. Computational approaches can be developed for automatically predicting biomedical research collaborations. Previous works of collaboration prediction mainly explored the topological structures of research collaboration networks, leaving out rich semantic information from the publications themselves. In this paper, we propose supervised machine learning approaches to predict research collaborations in the biomedical field. We explored both the semantic features extracted from author research interest profile and the author network topological features. We found that the most informative semantic features for author collaborations are related to research interest, including similarity of out-citing citations, similarity of abstracts. Of the four supervised machine learning models (naïve Bayes, naïve Bayes multinomial, SVMs, and logistic regression), the best performing model is logistic regression with an ROC ranging from 0.766 to 0.980 on different datasets. To our knowledge we are the first to study in depth how research interest and productivities can be used for collaboration prediction. Our approach is computationally efficient, scalable and yet simple to implement. The datasets of this study are available at PMID:25375164

Zhang, Qing; Yu, Hong



Collaborative Visualization: Definition, Challenges, and Research Agenda  

SciTech Connect

Collaborative visualization has emerged as a new research direction which offers the opportunity to reach new audiences and application areas for visualization tools and techniques. Technology now allows us to easily connect and collaborate with one another - in settings as diverse as over networked computers, across mobile devices, or using shared displays such as interactive walls and tabletop surfaces. Any of these collaborative settings carries a set of challenges and opportunities for visualization research. Digital information is already regularly accessed by multiple people together in order to share information, to view it together, to analyze it, or to form decisions. However, research on how to best support collaboration with and around visualizations is still in its infancy and has so far focused only on a small subset of possible application scenarios. The purpose of this article is (1) to provide a clear scope, definition, and overview of the evolving field of collaborative visualization, (2) to help pinpoint the unique focus of collaborative visualization with its specific aspects, challenges, and requirements within the intersection of general computer-supported collaborative work (CSCW) and visualization research, and (3) to draw attention to important future research questions to be addressed by the community. Thus, the goal of the paper is to discuss a research agenda for future work on collaborative visualization, including our vision for how to meet the grand challenge and to urge for a new generation of visualization tools that were designed with collaboration in mind from their very inception.

Isenberg, Petra; Elmqvist, Niklas; Scholtz, Jean; Cernea, Daniel; Ma, Kwan-Liu; Hagen, Hans



Mobile serious games for collaborative problem solving.  


This paper presents the results obtained from the implementation of a series of learning activities based on mobile serious games (MSG) for the development of problem-solving and collaborative skills in Chilean 8th grade students. Three MSGs were developed and played by teams of four students, who had to solve the problems posed by the game collaboratively. The data shows that the experimental group had a higher perception of their own skills of collaboration and of the plan execution dimension of problem solving than the control group, providing empirical evidence regarding the contribution of MSGs to the development of collaborative problem-solving skills. PMID:19592762

Sanchez, Jaime; Mendoza, Claudia; Salinas, Alvaro



Collaborative Surface Migration Behavior of Proteus mirabilis  

NSDL National Science Digital Library

Collaborative migration behavior exerted by Proteus mirabilis cells on the surface of a low-agar medium. The organisms were differentiating into elongated hyperflagellates and gathering for migration.

American Society For Microbiology



Issues and Experiences in Logistics Collaboration  

NASA Astrophysics Data System (ADS)

Collaborative logistics is becoming more important in today’s industry. This is driven by increased environmental concerns, improved efficiency through collaborative planning supporting resources sharing and new business models implementation. This paper explores collaborative logistics and reports on business applications within the forest products industry in Sweden and Canada. It first describes current opportunities in collaborative planning. It then discusses issues related to building the coalition as well as sharing resources and benefits. Three business cases are described and used to support the discussion around these main issues. Finally, different challenges are detailed, opening new paths for researchers in the field.

Lehoux, Nadia; Audy, Jean-François; D‘Amours, Sophie; Rönnqvist, Mikael


Accountability and values in radically collaborative research.  


This paper discusses a crisis of accountability that arises when scientific collaborations are massively epistemically distributed. We argue that social models of epistemic collaboration, which are social analogs to what Patrick Suppes called a "model of the experiment," must play a role in creating accountability in these contexts. We also argue that these social models must accommodate the fact that the various agents in a collaborative project often have ineliminable, messy, and conflicting interests and values; any story about accountability in a massively distributed collaboration must therefore involve models of such interests and values and their methodological and epistemic effects. PMID:25051867

Winsberg, Eric; Huebner, Bryce; Kukla, Rebecca



Main graphs: Quadratic equation  

E-print Network

a>0 OR OR OR x x x xxx x x x y y y Quadratic equation: The general solution of a quadratic equation equations: Equation dN dt = kN has the solution: N(t) = N0ekt; N0 is an (arbitrary) initial value of N. Systems of linear differential equations: For system dx dt = ax+by dy dt = cx+dy , the characteristic

Utrecht, Universiteit


Main graphs: Quadratic equation  

E-print Network

Main graphs: Quadratic equation: Equation A2 +B+C = 0, has solutions given by the following 'abc equations: Equation dN dt = kN has the solution: N(t) = N0ekt; N0 is an (arbitrary) initial value of N. Characteristic time of change is = 1/k. Systems of linear differential equations: For system dx dt = ax+by dy dt

Utrecht, Universiteit


Multicenter Epidemiological Study to Assess the Population of CKD Patients in Greece: Results from the PRESTAR Study  

PubMed Central

Background Chronic Kidney Disease (CKD) is a relatively common condition not only associated with increased morbidity and mortality but also fuelling End Stage Renal Disease (ESRD). Among developed nations, Greece has one of the highest ESRD incidence rates, yet there is limited understanding of the epidemiology of earlier stages of CKD. Methods Cross-sectional survey of pre-dialysis CKD outpatients in nephrology clinics in the National Health Care system between October 2009 and October 2010. Demographics, cause of CKD, blood pressure, level of renal function, duration of CKD and nephrology care, and specialty of referral physician were collected and analyzed. Different methods for estimating renal function (Cockroft-Gault [CG], CKD-Epi and MDRD) and staging CKD were assessed for agreement. Results A total of 1,501 patients in 9 centers were enrolled. Diabetic nephropathy was the most common nephrologist assigned cause of CKD (29.7%). In total, 36.5% of patients had self-referred to the nephrologist; patients with diabetes or serum creatinine above 220 µmol/l (eGFR<40 ml/min/1.73 m2) were more likely to have been referred by a physician. Agreement between MDRD and CKD-Epi, but not between CG, the other estimating equations, was excellent. There was substantial heterogeneity with respect to renal diagnoses, referral patterns and blood pressure among participating centers. Conclusions In this first epidemiologic assessment of CKD in Greece, we documented delayed referral and high rates of self-referral among patients with CKD. eGFR reporting, currently offered by a limited number of laboratories, may facilitate detection of CKD at an earlier, more treatable stage. PMID:25406080

Sombolos, Konstantinos; Tsakiris, Demitrios; Boletis, John; Vlahakos, Demetrios; Siamopoulos, Kostas C.; Vargemezis, Vassilios; Nikolaidis, Pavlos; Iatrou, Christos; Dafnis, Eugene; Xynos, Konstantinos; Argyropoulos, Christos



PBL and beyond: trends in collaborative learning.  


Building upon the disruption to lecture-based methods triggered by the introduction of problem-based learning, approaches to promote collaborative learning are becoming increasingly diverse, widespread and generally well accepted within medical education. Examples of relatively new, structured collaborative learning methods include team-based learning and just-in-time teaching. Examples of less structured approaches include think-pair share, case discussions, and the flipped classroom. It is now common practice in medical education to employ a range of instructional approaches to support collaborative learning. We believe that the adoption of such approaches is entering a new and challenging era. We define collaborate learning by drawing on the broader literature, including Chi's ICAP framework that emphasizes the importance of sustained, interactive explanation and elaboration by learners. We distinguish collaborate learning from constructive, active, and passive learning and provide preliminary evidence documenting the growth of methods that support collaborative learning. We argue that the rate of adoption of collaborative learning methods will accelerate due to a growing emphasis on the development of team competencies and the increasing availability of digital media. At the same time, the adoption collaborative learning strategies face persistent challenges, stemming from an overdependence on comparative-effectiveness research and a lack of useful guidelines about how best to adapt collaborative learning methods to given learning contexts. The medical education community has struggled to consistently demonstrate superior outcomes when using collaborative learning methods and strategies. Despite this, support for their use will continue to expand. To select approaches with the greatest utility, instructors must carefully align conditions of the learning context with the learning approaches under consideration. Further, it is critical that modifications are made with caution and that instructors verify that modifications do not impede the desired cognitive activities needed to support meaningful collaborative learning. PMID:24246112

Pluta, William J; Richards, Boyd F; Mutnick, Andrew



Existing Collaborations at UMass at the Materials-Immunology Interface Collaborative Grants (active or recently finished)  

E-print Network

Existing Collaborations at UMass at the Materials-Immunology Interface Collaborative Grants (active.J. and Latz, E. (UMass Worcester, Immunology), UMass President's Science and Technology Funds (UMass patent filing 2/2010. Teaching Collaborations: Immunology lab (Microbio 542). This laboratory course

Mountziaris, T. J.


Study of the Impact of Collaboration among Teachers in a Collaborative Authoring System  

ERIC Educational Resources Information Center

Several researchers have studied the impact of collaboration between the learners on their cognitive levels, but few studies have been carried out on the impact of collaboration between the teachers. The aim of our research is to study the effects on the knowledge levels of learners of collaborative construction of learning objects created by the…

Lafifi, Yacine; Touil, Ghassen



Collaborative Learning: Sourcebook for Collaborative Learning in the Arts and Sciences at Indiana University.  

ERIC Educational Resources Information Center

This sourcebook, prepared by the Intercampus Group on Collaborative Learning of Indiana University, offers suggestions to those who are already familiar with collaborative learning, but want to know how others are responding to the same or similar challenges. Papers are presented that examine general issues of collaborative learning in the Arts…

Hamilton, Sharon J., Ed.; Hansen, Edmund J., Ed.


A Data Mining Approach to Reveal Representative Collaboration Indicators in Open Collaboration Frameworks  

ERIC Educational Resources Information Center

Data mining methods are successful in educational environments to discover new knowledge or learner skills or features. Unfortunately, they have not been used in depth with collaboration. We have developed a scalable data mining method, whose objective is to infer information on the collaboration during the collaboration process in a…

Anaya, Antonio R.; Boticario, Jesus G.



WS-CCDL: A Framework for Web Service Collaborative Context Definition Language for Dynamic Collaborations  

Microsoft Academic Search

Dynamic collaborations involve contributed resources across the organisational boundaries that are subjected to different set of policies. The management of such resources for dynamic collaborations including negotiation, validation, instantiation and termination is difficult. Existing approaches for collaborations using Web Services such as WSLA are designed to deal with scenarios involving two parties: a service provider and a service consumer. These

Surya Nepal; John Zic; Shiping Chen



Collaboration in Student Teaching: Introducing the Collaboration Self-Assessment Tool  

ERIC Educational Resources Information Center

The need to collaborate in the fields of business, health care, and technology is not a new concept. Educational institutions, however, have been slow to recognize the need to teach collaboration skills (Brownell & Walther-Thomas, 2002; Jackson, 2004). This article focuses on the development of the Collaboration Self-Assessment Tool (CSAT). The…

Ofstedal, Kathleen; Dahlberg, Kathryn



Collaborating Fuzzy Reinforcement Learning Agents  

NASA Technical Reports Server (NTRS)

Earlier, we introduced GARIC-Q, a new method for doing incremental Dynamic Programming using a society of intelligent agents which are controlled at the top level by Fuzzy Relearning and at the local level, each agent learns and operates based on ANTARCTIC, a technique for fuzzy reinforcement learning. In this paper, we show that it is possible for these agents to compete in order to affect the selected control policy but at the same time, they can collaborate while investigating the state space. In this model, the evaluator or the critic learns by observing all the agents behaviors but the control policy changes only based on the behavior of the winning agent also known as the super agent.

Berenji, Hamid R.



“Embedded Research” in Collaborative Fieldwork  

PubMed Central

In the era of the “scientific development concept” of the Hu/Wen leadership, agents of knowledge transfer that eventually translates into policy comprise not only think tanks for policy formulation in central-state institutions but also researchers in universities supporting policy implementation at local levels. Well-established patterns of local scientific advisory frame collaborative fieldwork in Sino-Western scientific projects on local governance. However, there is a gap between our active integration into these patterns during fieldwork and our ability to clarify them as resources, reconstruct the selection of research topics and contextualize the research results within our academic discourses. Analysing site-finding, data collection, aggregation and dissemination of a research project with Chinese public health researchers on rural health service reform in Xinjiang between 2005 and 2010, I argue that fieldwork and the role performed as a scientific advisor for the political principal is the localized and daily interface where politics crosses into science.




Interdisciplinary Research Collaboration in Dependability  

NSDL National Science Digital Library

The Interdisciplinary Research Collaboration in Dependability (DIRC) is a joint effort among researchers from five British Universities and various disciplines "to address the dependability of computer-based systems." They define dependability broadly to encompass many facets of dependability, including reliability, security and availability. Their use of the term "computer-based systems" is also intended to emphasize the involvement of human participants and the inclusion of disciplines such as sociology and psychology as well as computer scientists and statisticians. Their work is organized into five Research Themes (Structure, Diversity, Timeliness, Responsibility and Risk), each of which is described here. Their projects are described on this website, along with a list of the people and partners involved and a selection of publications available to download, such as conference papers and technical reports. A Publications section also makes it easy to search the database by author or browse by publication type or project activity.


Collaboration: Working Together To Support Families. Program Resources.  

ERIC Educational Resources Information Center

This paper discusses collaboration as a process that can be used to support adult learners and families. The article distinguishes between collaboration, coordination, and cooperation; suggests ways to find collaborators; lists factors that promote or hinder collaboration; and provides guidelines for working with collaborators. A section on how to…

Padak, Nancy; Sapin, Connie


Collaborative and distributed intelligent environment merging virtual and physical realities  

Microsoft Academic Search

This paper introduces the development of a new collaborative and distributed intelligent environment that supports collaboration among geographically dispersed people including intelligent systems. The collaborative and distributed intelligent environment merges seamlessly mixed realities in terms of physical space, document, people, physical facilities and equipment, virtual environments, collaborative control, distributed teleopreration, decision making, etc. into one shared collaborative space. This approach

Maki K. Habib



Measuring and Analyzing Emerging Properties for Autonomic Collaboration Service Adaptation  

Microsoft Academic Search

Dynamic collaboration environments in which team member utilize difierent pervasive collaboration services for their collaborative work pose many challenges for service adaptation. Given a team, the un- derlying collaboration services must fulfll the team's goal. Thus, it is not enough to adapt collaboration services to the context of an individual. One needs to understand the behavior of the team and

Christoph Dorn; Hong-Linh Truong; Schahram Dustdar



Collaborative PLM - The Next Generation AKA Cars on Mars  

NASA Technical Reports Server (NTRS)

In this slide presentation the importance of collaboration in developing the next systems for space exploration is stressed. The mechanism of this collaboration are reviewed, and particular emphasis is given to our planned exploration of Mars and how this will require a great deal of collaboration. A system architecture for this collaboration is shown and the diagram for the collaborative environment is conceptualized.

Soderstrom, Tom; Stefanini, Mike



Collaborative Job Training in Rural Areas  

ERIC Educational Resources Information Center

We examine collaborative efforts by employers to provide job training in rural areas and assess how this collaboration affects the willingness of employers to train workers. Data are drawn from a telephone survey conducted in 2001 of a stratified random sample of 1,590 nonmetropolitan firms in the U.S. The literature on job training suggests that…

Green, Gary Paul; Galetto, Valeria; Haines, Anna



Cultures of Collaboration: Leveraging Classroom Potential  

ERIC Educational Resources Information Center

A primary task of teachers is to promote the culture of collaboration in classrooms. That's because we are smarter together than we are alone. But for teachers to leverage the unique social capacity of classrooms, they need to understand how to create situations requiring and rewarding collaboration (like that of inquiry), how to structure groups,…

Wilhelm, Jeffrey D., Ed.



Collaborative Strategic Planning: Myth or Reality?  

ERIC Educational Resources Information Center

The concept and practice of strategic planning, while entrenched in educational institutions in the West, is just catching on in Kenya. While literature emphasizes the importance of collaborative strategic planning, it does not indicate the challenges presented by collaboratively engaging in strategic planning. This article reports on findings of…

Mbugua, Flora; Rarieya, Jane F. A.



Teacher Learning and Collaboration in Innovative Teams  

ERIC Educational Resources Information Center

In this study the relationship between teacher learning and collaboration in innovative teams was explored. A comparative case study was conducted in five temporary teams in secondary schools. Several quantitative and qualitative data collection methods were used to examine collaboration, teacher learning, and the context for learning and…

Meirink, Jacobiene A.; Imants, Jeroen; Meijer, Paulien C.; Verloop, Nico



Collaboration using roles. [in computer network security  

NASA Technical Reports Server (NTRS)

Segregation of roles into alternative accounts is a model which provides not only the ability to collaborate but also enables accurate accounting of resources consumed by collaborative projects, protects the resources and objects of such a project, and does not introduce new security vulnerabilities. The implementation presented here does not require users to remember additional passwords and provides a very simple consistent interface.

Bishop, Matt



An Educational Community Using Collaborative Virtual Environments  

Microsoft Academic Search

The use of Collaborative Virtual Environments in e-learning is one of the most promising uses of the virtual reality technology. While a lot of research has been done in the area of collaborative virtual environments corresponding to the sharing of events, very little research has been done on specific services and functionality. However both the requirements and the kind of

Christos Bouras; Dimitrios Psaltoulis; Christos Psaroudis; Thrasyvoulos Tsiatsos



Collaborative Strategic Planning in Higher Education  

ERIC Educational Resources Information Center

This book outlines a simple, five-phase collaborative approach to strategic planning that has worked effectively on many campuses. Specifically, Collaborative Strategic Planning (CSP) refers to the disciplined and thoughtful process of meaningfully engaging relevant stakeholders in creating a shared future vision and goals for their institution.…

Sanaghan, Patrick



Identifying Coordination Agents for Collaborative Telelearning  

Microsoft Academic Search

This paper deals with identifying roles for coordination agents in a future collaborative telelearning environment. The current practice of students participating in a net- based simulation marketing game on-campus, is studied with an eye on designing a future collaborative telelearning environment where this same net-based simulation game will be central. The work described in this paper is situated within the

Barbara Wasson



Collaborative Virtual Gaming Worlds in Higher Education  

ERIC Educational Resources Information Center

There is growing interest in the use of virtual gaming worlds in education, supported by the increased use of multi-user virtual environments (MUVEs) and massively multi-player online role-playing games (MMORPGs) for collaborative learning. However, this paper argues that collaborative gaming worlds have been in use much longer and are much wider…

Whitton, Nicola; Hollins, Paul



Training Synchronous Collaborative E-Learning  

ERIC Educational Resources Information Center

In order to promote cooperation among students who work separately on their computers at home, the University of Essen has developed training courses with experienced tutors to teach students the required sensitivity and practical skills for tele-collaboration in small groups. A core problem in synchronous collaborative e-learning with speech…

Bliesener, Thomas



School-University Collaborations. Fastback 485.  

ERIC Educational Resources Information Center

Within the past 2 decades, the nature of school and university partnerships has changed so that collaboration now represents a real opportunity to make systemic change and improvement. A number of factors influence the success or failure of such collaborations: (1) shared goals; (2) institutional differences; (3) assessment and accountability; (4)…

Verbeke, Karen A.; Richards, Patricia O.


Selecting Computing Devices to Support Mobile Collaboration  

Microsoft Academic Search

Collaboration supported by mobile devices has brought advantages for users and also challenges for software developers and mobile computing devices manufacturers. Every kind of device used to support mobile collaboration has strengths and weaknesses depending on the work context where it is used. The idea is to use a specific device when advantages are most relevant and disadvantages do not

Luis A. Guerrero; Sergio F. Ochoa; JOS ´ E A. PINO; César A. Collazos



Doing Collaborative Learning (CL) - CL Structures  

NSDL National Science Digital Library

This site describes a variety of commonly used collaborative learning structures. These collaborative learning structures are frameworks and not specific activities. They provide a general structure that can be adapted to many situations, content, and disciplines. Links to a variety of related topics are included.

Wisconsin Center for Education Research


Using Communication to Solve Roadblocks to Collaboration  

ERIC Educational Resources Information Center

Despite the mandate of our national professional organizations to teach collaboratively, and the well-documented wisdom of doing so, roadblocks frequently litter the path to collaborative practice. Most teacher-librarians have encountered several; some still struggle daily. Suggestions offered in this article include: start by talking to teachers;…

Buzzeo, Toni



Google news personalization: scalable online collaborative filtering  

Microsoft Academic Search

Several approaches to collaborative filtering have been stud- ied but seldom have studies been reported for large (several million users and items) and dynamic (the underlying item set is continually changing) settings. In this paper we de- scribe our approach to collaborative filtering for generating personalized recommendations for users of Google News. We generate recommendations using three approaches: collabo- rative

Abhinandan S. Das; Mayur Datar; Ashutosh Garg; Shyamsundar Rajaram



The structure of scientic collaboration networks  

Microsoft Academic Search

We investigate the structure of scientic collaboration networks. We consider two scientists to be connected if they have authored a paper together, and construct explicit networks of such connections using data drawn from a number of databases, including MEDLINE (biomedical research), the Los Alamos e-Print Archive (physics), and NCSTRL (computer science). We show that these collaboration networks form \\\\small worlds\\

M. E. J. Newman



Unauthorized Collaboration on Facebook: Threats and Responses  

E-print Network

Unauthorized Collaboration on Facebook: Threats and Responses Recent events at FSU have uncovered and collaboration. The Problem: When students, faculty, and staff join Facebook using a valid FSU email address this and believe it is affiliated with or endorsed by Florida State University. Facebook also allows students

McQuade, D. Tyler


Jazz and the Eclipse Way of Collaboration  

Microsoft Academic Search

To improve collaboration in software development teams, IBM Research and IBM Rational software engineers have been working on the Jazz project. Jazz sets out to define a vision for the way products can integrate to support collaborative work, and to create a technology platform on which to build products to deliver on this vision. It focuses on developing better team-building

Randall Frost



Jazzing up Eclipse with collaborative tools  

Microsoft Academic Search

Collaboration is an integral part of software development, occurring through tools inside and outside the IDE. This paper presents an overview of the Jazz project, which seeks to integrate collaborative capabilities into the Eclipse IDE, enabling small teams of software developers to work together more productively.

Li-Te Cheng; Susanne Hupfer; Steven Ross; John F. Patterson



Doing Collaborative Learning (CL) - Starting Out  

NSDL National Science Digital Library

This website presents a guide to planning, preparing, and structuring a collaborative learning exercise, striking a balance between structure and independence. In the traditional lecture setting, the authority, control, and course structures are well defined. Collaborative learning techniques not only change the teaching and learning styles, but also the authority and control structure.

Wisconsin Center for Education Research


An Organisational Perspective on Collaborative Business Processes  

Microsoft Academic Search

Business collaboration is about coordinating the flow of information among organisations and linking their business processes. It brings great challenge to keep participating organisations as autonomous entities in integrating business processes of these organisations seamlessly. To address this issue, we develop a new perspective on business collaborations with a novel concept called relative workflow, which defines what a participating organisation

Xiaohui Zhao; Chengfei Liu; Yun Yang



Writing Collaboratively: Priority, Practice, and Process  

ERIC Educational Resources Information Center

Writing collaboratively is now widely practiced in many fields. Particularly in this advancing technological age, people find that it is not only practiced but also commonplace. However, the practice of writing collaboratively has not been widely researched, presented, or taught, and practitioners are often left to learn what works purely through…

Jones, Darolyn; Jones, James W.; Murk, Peter J.




E-print Network

MANCHESTER COLLABORATIVE SPORTS PROJECT DISABILITY SPORTS DAY EVENT EVALUATION REPORT Organisation and the University of Salford formed a Collaborative Sports Project Group to encourage disabled students and staff to participate in sporting activities. The project's aim is to create inclusive opportunities within mainstream


Effecting Instructional Change: A Collaborative Approach.  

ERIC Educational Resources Information Center

A study examined a collaborative project between a college and a New Jersey school district. The study was designed to facilitate change in reading instruction in a safe, non-intrusive manner. It used a collaborative model consisting of three sections: the beginning process, which included the choosing of director and co-director and formation of…

Kuveke, Susan H.


Support for Innovation Processes in Collaborative Networks  

E-print Network

Support for Innovation Processes in Collaborative Networks Heiko Duin1 , Manuel Fradinho2 , Marcus a discussion of the processes and challenges in the early phase of innovation, i.e. the idea seeding, ideation of maximizing the efficiency of their innovation processes by collaborating with others. The realization

Paris-Sud XI, Université de


Integrating to enhance global intercultural collaboration projects  

Microsoft Academic Search

Virtual collaboration requires competencies such as effective communication, and the ability to build trust and understanding to create a community with common aims. Virtual collaboration with other cultures also requires development of intercultural competence. Individuals need to understand cultural differences that determine behaviour, successful teamwork and outcomes. They must also be able to notice, reflect and critically analyse, and be

Debbie Corder; Alice U



Harnessing Collaborative Annotations on Online Formative Assessments  

ERIC Educational Resources Information Center

This paper harnesses collaborative annotations by students as learning feedback on online formative assessments to improve the learning achievements of students. Through the developed Web platform, students can conduct formative assessments, collaboratively annotate, and review historical records in a convenient way, while teachers can generate…

Lin, Jian-Wei; Lai, Yuan-Cheng



Getting Started Quick Search for Collaborators  

E-print Network

, or Publications. 4. Type a word in the free text search box. If searching by Keyword, the word must be typedEd's listing of experts in other countries or worldwide. 4. Type a word in the free text search box titledGetting Started Quick Search for Collaborators For Assistance Advanced Search for Collaborators

Stuart, Steven J.


Collaborations: Closing the Industry-Academia Gap  

Microsoft Academic Search

When it comes to software engineering education, there is a gap between what industry needs and what universities offer. To close this gap, the authors propose a comprehensive collaboration between academic software engineering programs and industry. They offer a model for this collaboration and highlight three real-world ventures

Kathy Beckman; Neal S. Coulter; Soheil Khajenoori; Nancy R. Mead



4 Collaborative Knowledge Production for Sustainable  

E-print Network

North-South Claudia Zingerli1 Abstract Does collaborative knowledge production in intercultural teams development research network of the Swiss National Centre of Competence in Research (NCCR) North of intercultural, collaborative knowledge production. It reveals a critical awareness of the potential, limitations

Richner, Heinz


Communication and Collaboration with Schools: Pediatricians' Perspectives  

ERIC Educational Resources Information Center

The multifaceted effect of chronic illness in children has created a need for pediatricians and school personnel, specifically school psychologists, to engage in collaborative problem solving. However, the extent to which this collaboration actually occurs in practice is unknown. A survey was developed and administered to a national sample of…

Bradley-Klug, Kathy L.; Sundman, Ashley N.; Nadeau, Joshua; Cunningham, Jennifer; Ogg, Julia



International Collaborative Learning--The Facilitation Process.  

ERIC Educational Resources Information Center

International collaborative learning is becoming more viable through a variety of Internet enabled software products. Group Support Systems appear to offer promise. But it is not well understood how to facilitate the teaching and learning process in electronic environments. If education is to involve an interactive process of collaborative inquiry…

Clear, A. G.


Writing Together: An Arendtian Framework for Collaboration  

ERIC Educational Resources Information Center

This essay considers the long-standing challenges, in both practice and theory, to collaborative writing in the first-year classroom. I argue that Hannah Arendt's concepts of plurality and natality are useful frameworks for thinking constructively and practically about teaching argumentative writing through collaboration. I explore these…

Restaino, Jessica



Collaboration between Science and Agriculture Teachers  

ERIC Educational Resources Information Center

The focus of this descriptive study was to determine the type and frequency of collaborative activities occurring between agriculture teachers and science teachers who taught in schools with agricultural education programs. Additional foci of this study included determining the extent to which science and agriculture teachers value collaborative

Stephenson, Lee G.; Warnick, Brian K.; Tarpley, Rudy S.



Research Summary Key Ingredients of Collaborative Management  

E-print Network

that collaboration amongst stakeholders can lead to more sustainable land-management. Voluntary collaboration closely with land-managers and other deer management stakeholders. Objectives This research aimed to: o forms. These may include: o co-ordinated land management o establishment of `strategic partnerships


Collaborating Climate Services Across the Missouri Basin  

E-print Network

Collaborating Climate Services Across the Missouri Basin Climate, Water and Ecosystems ­ Shaping Services Director #12;· Background: Regional Climate Services · Collaboration Thus Far #12;"All our Service Enterprise #12;NOAA's National Climatic Data CenterNOAA's National Climatic Data Center 7 Doug

Nebraska-Lincoln, University of


Old Adversaries United: Benefits of Collaborative Research.  

ERIC Educational Resources Information Center

Collaborative research maximizes the use of both physical and human resources in education. Benefits to the cooperating institutions (public schools and universities) are improvements in facilities, costs, programs, delivery services, climate, and training. Collaborative research eliminates the separation between the generation of knowledge and…

Norris, Carol A.; And Others


Long Pulse Physics via International Stellarator Collaboration  

E-print Network

stellarators leverages substantial world investment · Stellarator research addresses high priority Greenwald. · As bootstrap current changes, so does the magnetic geometry of the islands at the plasma edge · US designed structure 6 scrapers #12;W7-X US Collaboration · The driving themes of the existing collaboration are: Edge


Preventing information leakage between collaborating organisations  

Microsoft Academic Search

Information sharing and protection against leakage is a critical problem especially for organisations having sensitive information. Sharing content between individuals in the same organisation extends to exchanging and sharing content between collaborating organisations. In this paper we propose a novel solution for preventing shared information between collaborating organisations from getting leaked to unauthorised users inside the distination organisation or out

Muntaha Alawneh; Imad M. Abbadi



Collaboration by Design: Context, Structure, and Medium.  

ERIC Educational Resources Information Center

Describes an instructional unit integrating three educational innovations: a problem-solving video (Adventures of Jasper Woodbury), a structure for collaborative learning, Fostering Communities of Learners (FCL), and Computer-Supported Intentional Learning Environments (CSILE). Argues that each innovation supports collaboration in a distinct way…

Tiessen, Esther L.; Ward, Douglas R.



Developing Collaborative Partnerships. Practice Application Brief.  

ERIC Educational Resources Information Center

Collaboration has become a pervasive strategy for systemic change in human services, education, government, and community agencies. Collaborative partnerships require a change in thinking and in operating. Such changes can be intimidating or threatening. In addition, other barriers must be overcome to make partnerships work. Examples of successful…

Kerka, Sandra


A Case Study of Online Collaborative Learning  

ERIC Educational Resources Information Center

This case study investigated 12 graduate students' online collaborative experiences and attitudes in an instructional design course. The instructor divided students into 4 groups based on their academic backgrounds. Content analysis of asynchronous group discussion board messages was used to measure degrees of collaboration of each group in terms…

Thompson, Ling; Ku, Heng-Yu



BiosCi Education Network (BEN) collaborative  

Microsoft Academic Search

The BEN Collaborative, spearheaded by the American Association for the Advancement of Science (AAAS) and composed of professional societies and coalitions for biology education, is developing a revolutionary approach for transforming biology teaching and learning in undergraduate and graduate institutions, as well as professional schools. Through the development of a BEN portal site, the BEN Collaborative is providing users with

Linda Akli; Cal T. Collins; Jason Smith; Ron Butler; Amy Chang; Yolanda George; Nancy Gough; Melinda Lowy; Marsha Matyas; Brandon Muramatsu; Susan Musante; Jason Taylor



Preparing Secondary Special Educators: Four Collaborative Initiatives  

ERIC Educational Resources Information Center

The purpose of this paper is to share the results of multiphase initiatives funded by four separate grants. The projects were designed to improve and enhance collaborative teaching at the secondary level. Each project provided opportunities for increased collaboration between special education faculty, secondary education faculty, and…

Simmons, Kate D.; Carpenter, Laura Bowden; Dyal, Allen; Austin, Sheila; Shumack, Kellie



Collaborative Writing Support Tools on the Cloud  

ERIC Educational Resources Information Center

Academic writing, individual or collaborative, is an essential skill for today's graduates. Unfortunately, managing writing activities and providing feedback to students is very labor intensive and academics often opt out of including such learning experiences in their teaching. We describe the architecture for a new collaborative writing support…

Calvo, R. A.; O'Rourke, S. T.; Jones, J.; Yacef, K.; Reimann, P.




E-print Network

) in collaborative learning. Our pre- vious results have confirmed the hypothesis that students' higher engagement has a positive effect on learning outcomes. Thus, we now analyze the students' collaborative learning that the amount and quality of discussions explain the learning performance differences when students use


Practices and Strategies of Distributed Knowledge Collaboration  

ERIC Educational Resources Information Center

Information Technology is enabling large-scale, distributed collaboration across many different kinds of boundaries. Researchers have used the label new organizational forms to describe such collaborations and suggested that they are better able to meet the demands of flexibility, speed and adaptability that characterize the knowledge economy.…

Kudaravalli, Srinivas



Peer Interaction in Three Collaborative Learning Environments  

ERIC Educational Resources Information Center

The aim of the study was to gain insight into the occurrence of different types of peer interaction and particularly the types of interaction beneficial for learning in different collaborative learning environments. Based on theoretical notions related to collaborative learning and peer interaction, a coding scheme was developed to analyze the…

Staarman, Judith Kleine; Krol, Karen; Meijden, Henny van der



Preference Learning in Internet Collaboration Environments  

Microsoft Academic Search

In this paper, we present an overview of preference learning applications to support collaborative work on the internet. Based on de- riving some basic requirements a more generalized and extensible internet collaboration environment should satisfy, a system architecture for the flexible integration of different web applications to support a workgroup in different everyday aspects of their internet based work is

Thomas Friese; Bernd Freisleben


Single wall penetration equations  

NASA Technical Reports Server (NTRS)

Five single plate penetration equations are compared for accuracy and effectiveness. These five equations are two well-known equations (Fish-Summers and Schmidt-Holsapple), two equations developed by the Apollo project (Rockwell and Johnson Space Center (JSC), and one recently revised from JSC (Cour-Palais). They were derived from test results, with velocities ranging up to 8 km/s. Microsoft Excel software was used to construct a spreadsheet to calculate the diameters and masses of projectiles for various velocities, varying the material properties of both projectile and target for the five single plate penetration equations. The results were plotted on diameter versus velocity graphs for ballistic and spallation limits using Cricket Graph software, for velocities ranging from 2 to 15 km/s defined for the orbital debris. First, these equations were compared to each other, then each equation was compared with various aluminum projectile densities. Finally, these equations were compared with test results performed at JSC for the Marshall Space Flight Center. These equations predict a wide variety of projectile diameters at a given velocity. Thus, it is very difficult to choose the 'right' prediction equation. The thickness of a single plate could have a large variation by choosing a different penetration equation. Even though all five equations are empirically developed with various materials, especially for aluminum alloys, one cannot be confident in the shield design with the predictions obtained by the penetration equations without verifying by tests.

Hayashida, K. B.; Robinson, J. H.



On the Raychaudhuri equation  

NASA Astrophysics Data System (ADS)

The Raychaudhuri equation is central to the understanding of gravitational attraction in astrophysics and cosmology, and in particular underlies the famous singularity theorems of general relativity theory. This paper reviews the derivation of the equation, and its significance in cosmology.

Ellis, George F. R.



The QuarkNet Collaboration  

NASA Astrophysics Data System (ADS)

QuarkNet is a long-term high school education project, supported by NSF and DOE and carried out by a collaboration of university and laboratory research groups. These research groups are part of major international particle physics experiments, including those at CERN in Switzerland, Fermilab in Illinois, and SLAC in California. Goals and Objectives: A major goal is to engage students and teachers in authentic scientific research; they gain a first-hand understanding of research and its application in the inquiry method of learning. Teachers enhance their content knowledge, increase their abilities to solve science-related problems, engage students in scientific inquiry, and develop responsibility for their own professional development. Students learn fundamental physics and are motivated by current research questions as they analyze real data. A second goal is to engage particle physicists with current issues in science education, including their understanding of the National Science Education Standards and local science education needs and what constitutes age-appropriate content. Project Design: Working with physicists nationwide, we have established a project framework with three program areas-teacher research experience, teacher development programs, and online resources and inquiry-based activities. Eight-week research appointments allow teachers to experience scientific research first-hand. In teacher institutes the next summer these teachers and scientists lead a group of teachers through a short research scenario lasting two to three weeks and assist them in creating similar scenarios for their students. When fully implemented QuarkNet will support centers associated with 60 particle physics research groups at universities and laboratories in the U. S. The QuarkNet website provides: - Experimental data for use in inquiry-based activities. - Opportunities for communication and collaboration among physicists, teachers and students. - A place for students to publish and share their ideas. - Resources including background information, simulations, ideas for data analysis, inquiry activities, etc. Future Scope: Many students are engaged in research in their schools, but in the second five years, we will add a student component to the summer research experience.

Erzberger, A.



A Comparison of IRT Equating and Beta 4 Equating  

ERIC Educational Resources Information Center

Four equating methods (3PL true score equating, 3PL observed score equating, beta 4 true score equating, and beta 4 observed score equating) were compared using four equating criteria: first-order equity (FOE), second-order equity (SOE), conditional-mean-squared-error (CMSE) difference, and the equi-percentile equating property. True score…

Kim, Dong-In; Brennan, Robert; Kolen, Michael



A Security Framework for Protecting Traffic between Collaborative Domains  

E-print Network

Secure Name Service (SNS) framework for en- hancing the service availability between collaborative ­ Secure Name Service (SNS) ­ to protect critical Internet services in collaborative domains (eA Security Framework for Protecting Traffic between Collaborative Domains Yingfei Dong a , Changho

Minnesota, University of


Research Councils UK Joint Vision For Collaborative Training  

E-print Network

Research Councils UK Joint Vision For Collaborative Training Objectives: Research Council Collaborative Training will provide doctoral students with a first- rate, challenging research training organisations in the private, public and civil society sectors. Benefits to the student ­ Collaborative Training

Berzins, M.


Teachers as Game Designers: Lessons from a Collaborative Learning Exercise  

E-print Network

Teachers as Game Designers: Lessons from a Collaborative Learning Exercise Navkar Samdaria Praveen design games that promote collaborative learning. Specifically, we describe a strategy for designing collaborative learning games through active teacher participation. We also present four key elements

Toronto, University of



E-print Network

") for the conduct of collaborative preclinical and clinical research studies in the area of identificationCOLLABORATIVE RESEARCH AGREEMENT BETWEEN PFIZER INC. AND [ACADEMIC MEDICAL CENTER] THIS COLLABORATIVE RESEARCH AGREEMENT (hereinafter "Agreement") is entered into by and between Pfizer Inc

Bandettini, Peter A.


76 FR 61666 - Collaborative Forest Landscape Restoration Program Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...AGRICULTURE Forest Service Collaborative Forest Landscape Restoration Program Advisory Committee...SUMMARY: The Collaborative Forest Landscape Restoration Program (CFLRP) Advisory...who wish to bring Collaborative Forest Landscape Restoration Program matters to the...



75 FR 38456 - Collaborative Forest Landscape Restoration Program Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...AGRICULTURE Forest Service Collaborative Forest Landscape Restoration Program Advisory Committee...SUMMARY: The Collaborative Forest Landscape Restoration Program (CFLRP) Advisory...who wish to bring Collaborative Forest Landscape Restoration Program matters to the...



76 FR 3605 - Collaborative Forest Landscape Restoration Program Advisory Committee  

Federal Register 2010, 2011, 2012, 2013, 2014

...AGRICULTURE Forest Service Collaborative Forest Landscape Restoration Program Advisory Committee...SUMMARY: The Collaborative Forest Landscape Restoration Program (CFLRP) Advisory...who wish to bring Collaborative Forest Landscape Restoration Program matters to the...



Collaborative Research Agreements: Getting Through the Legal Hurdles  

NSDL National Science Digital Library

A powerpoint presentation file from the EB 2007 Careers Symposium - Guide for Successful Collaboration: From the Handshake to the Collaborative Research Agreement a presentation on the ethics and legal issues involved in a collaboration.

Jay B Winchester (Judge Advocate, US Army Medical Research and Material Command)



Collaborative Research Agreements: Getting Through the Legal Hurdles  

NSDL National Science Digital Library

A recorded presentation from the EB 2007 Careers Symposium - Guide for Successful Collaboration: From the Handshake to the Collaborative Research Agreement a presentation on the ethics and legal issues involved in a collaboration.

Jay B Winchester (Judge Advocate, US Army Medical Research and Material Command)



A new evolution equation  

Microsoft Academic Search

We propose a new evolution equation for the gluon density relevant for the region of small xB. It generalizes the GLR equation and allows deeper penetration in dense parton systems than the GLR equation does. This generalization consists of taking shadowing effects more comprehensively into account by including multigluon correlations, and allowing for an arbitrary initial gluon distribution in a

Eric Laenen; Eugene Levin



Lesson 28: Radical Equations  

NSDL National Science Digital Library

The lesson begins with an emphasis on isolating the radical expression in a radical equation and then highlights the importance of checking for extraneous solutions that may be generated when the equation is solved by applying even powers. Equations containing two radical expressions and then presented, followed by coverage of taking the nth root of a^n.



Solving Systems of Equations  

NSDL National Science Digital Library

Learn how to solve systems of linear equations by graphing, substitution, and elimination. As we discovered in our Pet Sitters Unit, systems of equations are a useful way to model and solve real-world situations in business. They are also useful in science and social science applications. This online unit will help you become an expert at solving systems of linear equations. 1) ...

Mrs. Ball



The Semiclassical Einstein Equation on Cosmological Spacetimes  

E-print Network

The subject of this thesis is the coupling of quantum fields to a classical gravitational background in a semiclassical fashion. It contains a thorough introduction into quantum field theory on curved spacetime with a focus on the stress-energy tensor and the semiclassical Einstein equation. Basic notions of differential geometry, topology, functional and microlocal analysis, causality and general relativity will be summarised, and the algebraic approach to QFT on curved spacetime will be reviewed. Apart from these foundations, the original research of the author and his collaborators will be presented: Together with Fewster, the author studied the up and down structure of permutations using their decomposition into so-called atomic permutations. The relevance of these results to this thesis is their application in the calculation of the moments of quadratic quantum fields. In a work with Pinamonti, the author showed the local and global existence of solutions to the semiclassical Einstein equation in flat co...

Siemssen, Daniel



Direct Collaboration Between Amateur and Professional Astronomers  

NASA Astrophysics Data System (ADS)

The authors (Boltwood an amateur, Sadun a professional) have successfully collaborated for the photometry of Blazars and subsequent analysis. Both have been in other collaborations. These experiences are drawn upon to give advice to future collaborators. Collaborations are usually formed because each party has (or can provide) something that the others don't have. The amateur and the professional usually have different motivations. Some of these may be inappropriate and must be properly managed. For example, the taking excess credit by the professional, or the expectation of too much "fun" by the amateur. Mutual respect and trust are essential, but are often not present on either side. Both sides must be sure that they can hold up their ends of the bargain. The amateur especially needs to understand the large amount of work and the high quality needed. He needs to do what is needed for the project, and do it very well. The most crucial time is at the formation of the collaboration. Care must be taken on both sides to learn how to run a collaboration, and to be sure that it will work. Clear agreements are needed. Possible mistaken assumptions on both sides must be identified. Nut and bolts problems such as money, library access, conference access, and equipment, software, and file compatibility must be recognized and sorted out. Successful collaborations are certainly possible, but all parties need to understand what is involved to avoid conflict.

Boltwood, P.; Sadun, A.



ARTEMIS: a collaborative framework for health care.  

PubMed Central

Patient centered healthcare delivery is an inherently collaborative process. This involves a wide range of individuals and organizations with diverse perspectives: primary care physicians, hospital administrators, labs, clinics, and insurance. The key to cost reduction and quality improvement in health care is effective management of this collaborative process. The use of multi-media collaboration technology can facilitate timely delivery of patient care and reduce cost at the same time. During the last five years, the Concurrent Engineering Research Center (CERC), under the sponsorship of DARPA (Defense Advanced Research Projects Agency, recently renamed ARPA) developed a number of generic key subsystems of a comprehensive collaboration environment. These subsystems are intended to overcome the barriers that inhibit the collaborative process. Three subsystems developed under this program include: MONET (Meeting On the Net)--to provide consultation over a computer network, ISS (Information Sharing Server)--to provide access to multi-media information, and PCB (Project Coordination Board)--to better coordinate focussed activities. These systems have been integrated into an open environment to enable collaborative processes. This environment is being used to create a wide-area (geographically distributed) research testbed under DARPA sponsorship, ARTEMIS (Advance Research Testbed for Medical Informatics) to explore the collaborative health care processes. We believe this technology will play a key role in the current national thrust to reengineer the present health-care delivery system. PMID:8130536

Reddy, R.; Jagannathan, V.; Srinivas, K.; Karinthi, R.; Reddy, S. M.; Gollapudy, C.; Friedman, S.



Collaborative Planning of Robotic Exploration  

NASA Technical Reports Server (NTRS)

The Science Activity Planner (SAP) software system includes an uplink-planning component, which enables collaborative planning of activities to be undertaken by an exploratory robot on a remote planet or on Earth. Included in the uplink-planning component is the SAP-Uplink Browser, which enables users to load multiple spacecraft activity plans into a single window, compare them, and merge them. The uplink-planning component includes a subcomponent that implements the Rover Markup Language Activity Planning format (RML-AP), based on the Extensible Markup Language (XML) format that enables the representation, within a single document, of planned spacecraft and robotic activities together with the scientific reasons for the activities. Each such document is highly parseable and can be validated easily. Another subcomponent of the uplink-planning component is the Activity Dictionary Markup Language (ADML), which eliminates the need for two mission activity dictionaries - one in a human-readable format and one in a machine-readable format. Style sheets that have been developed along with the ADML format enable users to edit one dictionary in a user-friendly environment without compromising

Norris, Jeffrey; Backes, Paul; Powell, Mark; Vona, Marsette; Steinke, Robert



Stereoscopic medical imaging collaboration system  

NASA Astrophysics Data System (ADS)

The computerization of the clinical record and the realization of the multimedia have brought improvement of the medical service in medical facilities. It is very important for the patients to obtain comprehensible informed consent. Therefore, the doctor should plainly explain the purpose and the content of the diagnoses and treatments for the patient. We propose and design a Telemedicine Imaging Collaboration System which presents a three dimensional medical image as X-ray CT, MRI with stereoscopic image by using virtual common information space and operating the image from a remote location. This system is composed of two personal computers, two 15 inches stereoscopic parallax barrier type LCD display (LL-151D, Sharp), one 1Gbps router and 1000base LAN cables. The software is composed of a DICOM format data transfer program, an operation program of the images, the communication program between two personal computers and a real time rendering program. Two identical images of 512×768 pixcels are displayed on two stereoscopic LCD display, and both images show an expansion, reduction by mouse operation. This system can offer a comprehensible three-dimensional image of the diseased part. Therefore, the doctor and the patient can easily understand it, depending on their needs.

Okuyama, Fumio; Hirano, Takenori; Nakabayasi, Yuusuke; Minoura, Hirohito; Tsuruoka, Shinji



Collaboration in Complex Medical Systems  

NASA Technical Reports Server (NTRS)

Improving our understanding of collaborative work in complex environments has the potential for developing effective supporting technologies, personnel training paradigms, and design principles for multi-crew workplaces. USing a sophisticated audio-video-data acquisition system and a corresponding analysis system, the researchers at University of Maryland have been able to study in detail team performance during real trauma patient resuscitation. The first study reported here was on coordination mechanisms and on characteristics of coordination breakdowns. One of the key findings was that implicit communications were an important coordination mechanism (e.g. through the use of shared workspace and event space). The second study was on the sources of uncertainty during resuscitation. Although incoming trauma patients' status is inherently uncertain, the findings suggest that much of the uncertainty felt by care providers was related to communication and coordination. These two studies demonstrate the value of and need for creating a real-life laboratory for studying team performance with the use of comprehensive and integrated data acquisition and analysis tools.

Xiao, Yan; Mankenzie, Colin F.



Multicenter Breast Cancer Collaborative Registry  

PubMed Central

The Breast Cancer Collaborative Registry (BCCR) is a multicenter web-based system that efficiently collects and manages a variety of data on breast cancer (BC) patients and BC survivors. This registry is designed as a multi-tier web application that utilizes Java Servlet/JSP technology and has an Oracle 11g database as a back-end. The BCCR questionnaire has accommodated standards accepted in breast cancer research and healthcare. By harmonizing the controlled vocabulary with the NCI Thesaurus (NCIt) or Systematized Nomenclature of Medicine-Clinical Terms (SNOMED-CT), the BCCR provides a standardized approach to data collection and reporting. The BCCR has been recently certified by the National Cancer Institute’s Center for Biomedical Informatics and Information Technology (NCI CBIIT) as a cancer Biomedical Informatics Grid (caBIG®) Bronze Compatible product. The BCCR is aimed at facilitating rapid and uniform collection of critical information and biological samples to be used in developing diagnostic, prevention, treatment, and survivorship strategies against breast cancer. Currently, seven cancer institutions are participating in the BCCR that contains data on almost 900 subjects (BC patients and survivors, as well as individuals at high risk of getting BC). PMID:21918596

Sherman, Simon; Shats, Oleg; Fleissner, Elizabeth; Bascom, George; Yiee, Kevin; Copur, Mehmet; Crow, Kate; Rooney, James; Mateen, Zubeena; Ketcham, Marsha A.; Feng, Jianmin; Sherman, Alexander; Gleason, Michael; Kinarsky, Leo; Silva-Lopez, Edibaldo; Edney, James; Reed, Elizabeth; Berger, Ann; Cowan, Kenneth



EB 2007 Careers Symposium - Guide for Successful Collaboration: From the Handshake to the Collaborative Research Agreement  

NSDL National Science Digital Library

Successful collaborations foster successful scientific careers. Scientific collaboration is a critical feature of the research process. Not only is it a requirement for the advancement of scientific knowledge, but it is also an important skill for scientists to possess for a successful and productive career. Initiating a successful collaboration is a skill that many scientists have little experience with early in their careers. Collaboration is key to expanding ones scientific reach, potentially tapping into resources (technologies, reagents, ideas) that might not be immediately available. But, how do you take the first step? How does one collaborate with the pharmaceutical industry? How does one tap into VA/Military research dollars and resources? What are the legal issues of a formal collaboration? What types of collaborations are common? This Symposium will help to answer these questions by describing various types of collaborations within academia, between academia and industry, and between basic and clinical scientists, and how to initiate them. The Symposium will also discuss more non-traditional collaborations, such as those with the US government and Veterans Administration. Finally, it will also cover what to expect from the legal perspective, specifically the common reasons why collaborations fail or fall through.

Stephanie W Watts (Michigan State University)



Human Centered Hardware Modeling and Collaboration  

NASA Technical Reports Server (NTRS)

In order to collaborate engineering designs among NASA Centers and customers, to in clude hardware and human activities from multiple remote locations, live human-centered modeling and collaboration across several sites has been successfully facilitated by Kennedy Space Center. The focus of this paper includes innovative a pproaches to engineering design analyses and training, along with research being conducted to apply new technologies for tracking, immersing, and evaluating humans as well as rocket, vehic le, component, or faci lity hardware utilizing high resolution cameras, motion tracking, ergonomic analysis, biomedical monitoring, wor k instruction integration, head-mounted displays, and other innovative human-system integration modeling, simulation, and collaboration applications.

Stambolian Damon; Lawrence, Brad; Stelges, Katrine; Henderson, Gena



[Art, health and prevention: initial collaborations].  


This article presents a summary of the first 2 years of the collaboration between the Faculty of Fine Arts of the Universidad Complutense in Madrid and Madrid Health, an autonomous organism of Madrid Council. This collaboration has allowed the development of joint experiences and projects among distinct professionals with highly diverse profiles: health professionals (sexologists, psychiatrists, nurses, etc.), and teachers, researchers, artists and students in the Faculty of Fine Arts. As a result, these experiences could be the beginning of future collaborations between the arts, health and prevention. PMID:25156001

Avila, Noemí; Orellana, Ana; Cano, Marta G; Antúnez, Noelia; Claver, Dolores



When do researchers collaborate? Toward a model of collaboration propensity in science and engineering research  

NASA Astrophysics Data System (ADS)

Geographically distributed and multidisciplinary collaborations have proven invaluable in answering a range of important scientific questions, such as understanding and controlling disease threats like SARS and AIDS or exploring the nature of matter in particle physics. Despite this, however, collaboration can often be problematic. There are institutional obstacles, collaboration tools may be poorly designed, and group coordination is difficult. To better design technologies to support research activities, we need an improved understanding of why scientists collaborate and how their collaborations work. To achieve this improved understanding, this study compares two theoretical approaches to collaboration propensity---that is, the extent to which collaboration is perceived as useful by individual researchers. On one hand, cultural comparisons of disciplines suggest that collaboration propensity will be higher in disciplinary cultures that have a more collectivist orientation, as indicated by low levels of competition for individual recognition and few concerns about secrecy related to commercialization and intellectual property. In contrast, an approach based on social and organizational psychology suggests that collaboration propensity will vary as a function of resource concentration, fieldwide focus on a well-defined set of problems, and the need for and availability of help when difficult problems are encountered in day-to-day work. To explore this question, a mail survey of 900 academic researchers in three fields was conducted, along with 100 interviews with practicing researchers at 17 sites in the field. Results support a social and organizational psychological interpretation of collaboration propensity. That is, cultural factors such as competition for individual recognition and concerns about intellectual property were not perceived as significant impediments to collaboration. Instead, characteristics like resource concentration and frequent help-seeking behavior were more important in determining collaboration propensity. Implications of these findings include a call for more careful examination of the day-to-day work of scientists and engineers, and a suggestion that concerns about scientific competition impeding collaboration may be unwarranted.

Birnholtz, Jeremy P.


New unified evolution equation  

E-print Network

We propose a new unified evolution equation for parton distribution functions appropriate for both large and small Bjorken variables $x$, which is an improved version of the Ciafaloni-Catani-Fiorani-Marchesini equation. In this new equation the cancellation of soft divergences between virtual and real gluon emissions is explicit without introducing infrared cutoffs, next-to-leading contributions to the Sudakov resummation can be included systematically. It is shown that the new equation reduces to the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equation at large $x$, to the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equation at small $x$, and to the modified BFKL equations with a dependence on momentum transfer $Q$ and with unitarity, if hard virtual gluon contributions and correction to strong rapidity ordering are retained, respectively.

Jyh-Liong Lim; Hsiang-nan Li



Global Collaborations - Prospects and Problems  

NASA Astrophysics Data System (ADS)

International collaboration has long been a feature of science. Collaborative investments in joint facilities and projects have grown considerably over the past 20-40 years, and many projects have been multinational from the start. This has been particularly true in Europe, where intergovernmental organizations such as CERN, ESA, and ESO have enabled European countries to carry out forefront science with state-of-art facilites which would have been beyond the capabilities of any one country. A brief survey of these organizations, their structure, and the possible reasons behind their success is given. The transition from regional to global creates new problems. Global scale projects face a range of generic issues which must be addressed and overcome if the project is to be a success. Each project has its own specific boundary conditions and each adopts an approach best fitted to its own objectives and constraints. Experience with billion dollar projects such as the SSC, LHC, and ITER shows the key problem areas and demonstrates the importance of preparatory work in the early stages to settle issues such as schedule, funding, location, legal and managerial structure, and oversight. A range of current and proposed intercontinental or global projects - so- called ``Megascience Projects" - is reviewed. Such projects, originally a feature of space and particle physics, are now becoming more common, and very large projects in astronomy, for example ALMA and 50 - 100m telescopes, and other areas of physics now fall into the `global' category. These projects are on such a large scale, from any scientific, managerial, financial or political perspective, and have such global importance, that they have necessarily been conceived as international from the outset. Increasing financial pressures on governments and funding agencies in the developed countries place additional demands on the project planning. The contrasting approaches, problems faced, and progress made in various projects will be analyzed and possible lessions drawn out. The role which can be played in the early stages by bodies such as the OECD Global Science Forum and G-8 Carnegie Meetings, where science policy makers meet, is examined. Experience shows that these valuable `scene setting' discussions have to be informed by coordinated input from the scientific community and must be followed up by more detailed discussions between funding agencies or their equivalent, because decision making requires the development of a consensus amongst the participants. This process can be illustrated most effectively by the care with which the ideas for the International Linear Collider have been and are being developed. Agreement on building and operating a facility is not the end of the story. The legitimate desire of scientists in all other countries to be able to participate in exploiting a major new facility has to be taken into account, and that introduces a range of proprietary and sociological issues over data access and rights, and now, with the explosion in computing and storage powers, in data archiving support. These are issues which can be addressed within the scientific community and taken to the political arena via such bodies as the OECD Global Science Forum.

Corbett, Ian



NBII Collaboration with Guyra Paraguay: Leaders  

USGS Multimedia Gallery

NBII and Guyra Paraguay are collaborating on two biodiversity informatics projects in Paraguay. NBII is providing funding and expertise in metadata, cataloguing, and information delivery. Guyra Paraguay is a small NGO specializing in species and landscape-level conservation....


Organizations Collaborating to Improve Educational Practice.  

ERIC Educational Resources Information Center

Three case studies of interorganizational collaboration between regional education agencies (REAs) and school districts illustrate how successful knowledge utilization occurs. Researchers studied how knowledge utilization services in four areas--staff development, linking agent assistance, information retrieval, and broad organizational…

Yin, Robert K.; Gwaltney, Margaret K.


Collaborative Lab Reports with Google Docs  

NASA Astrophysics Data System (ADS)

Science is a collaborative endeavor. The solitary genius working on the next great scientific breakthrough is a myth not seen much today. Instead, most physicists have worked in a group at one point in their careers, whether as a graduate student, faculty member, staff scientist, or industrial researcher. As an experimental nuclear physicist with research at the Thomas Jefferson National Accelerator Facility, my collaboration consists of over 200 scientists, both national and international. A typical experiment will have a dozen or so principal investigators. Add in the hundreds of staff scientists, engineers, and technicians, and it is clear that science is truly a collaborative effort. This paper will describe the use of Google Docs for collaborative reports for an introductory physics laboratory.

Wood, Michael



Best practices for university-industry collaboration  

E-print Network

This thesis reports findings from a study of best practices for university-industry collaboration. The study involved over 70 interviews at 17 large technology companies with company managers and individuals having ...

Calder, Edward Spencer



Interlaboratory Collaborations in the Undergraduate Setting  

ERIC Educational Resources Information Center

A novel approach to cross-disciplinary and group learning, known as interlaboratory collaborations, was developed. The method mimics an industrial or research setting, fosters teamwork, and emphasizes the importance of good communication skills in the sciences.

Megehee, Elise G.; Hyslop, Alison G.; Rosso, Richard J.



Sociapedia : online collaboration over a social network  

E-print Network

This paper introduces Sociapedia, a collaborative social network application that encourages friends to contribute content about each other. Sociapedia is designed upon the same principles that allowed ordinary web users ...

Kedia, Mihir



Launching International Collaboration for Interpretation Research  

ERIC Educational Resources Information Center

The expansion of interpretation research projects across national boundaries contributes to improved personal, professional, and intellectual outcomes for researchers and practitioners. Establishing and maintaining these collaborative teams may be especially beneficial to strengthening the research agenda of new researchers. Conducting…

Shaw, Sherry



Making together : creative collaboration for everyone  

E-print Network

This thesis explores how we can design learning environments to support broad participation in creative collaboration-that is, the process of working together on the construction of an artifact. I describe and analyze the ...

Roque, Ricarose Vallarta




EPA Science Inventory

In response to changing social and economic conditions, instant communication, emerging technology, and decreasing resources for libraries, there is a need for librarians to use collaborative methods, strategies, and technologies to solve common problems or produce common produ...


Opportunistic, collaborative and synchronized, proximal device ecology  

E-print Network

CoSync is an on-device software framework for coordinating proximal consumer electronic devices in order to create a synchronized, opportunistic and collaborative device ecology. The CoSync device ecology combines multiple ...

Toledano, Eyal



Spatial aspects of mobile ad hoc collaboration  

E-print Network

Traditionally, communication devices are designed to overcome distance in space or time. How can personal mobile tools augment local interaction and promote spontaneous collaboration between users in proximity? Mobile ad ...

Chardin, Ivan Sergeyevich, 1977-



Webbed Footnotes : collaborative annotation on the Web  

E-print Network

More and more, web users are moving from simply consuming content on the web to creating it as well, in the form of discussion boards, weblogs, wikis, and other collaborative and conversational media. Despite this, the web ...

Golder, Scott Andrew



The structure of scientific collaboration networks  

PubMed Central

The structure of scientific collaboration networks is investigated. Two scientists are considered connected if they have authored a paper together and explicit networks of such connections are constructed by using data drawn from a number of databases, including MEDLINE (biomedical research), the Los Alamos e-Print Archive (physics), and NCSTRL (computer science). I show that these collaboration networks form “small worlds,” in which randomly chosen pairs of scientists are typically separated by only a short path of intermediate acquaintances. I further give results for mean and distribution of numbers of collaborators of authors, demonstrate the presence of clustering in the networks, and highlight a number of apparent differences in the patterns of collaboration between the fields studied. PMID:11149952

Newman, M. E. J.



Successful Collaboration in an Agile framework  

E-print Network

Agile is an iterative and incremental framework for developing software. The core values of Agile foster collaboration. This study focuses on experiences of Agile practicioners to understand the core values in practice settings....

Carpenter, Charles Robert



Robot Partners: Collaborative Perceptual Robotic Systems  

E-print Network

Robot Partners: Collaborative Perceptual Robotic Systems Working paper Cooperative Distributed robotic systems, including remote-brained soccer players, visually guided mobile robots, and visual been supported by the the Networks of Centres of Excellence Institute for Robotics and Intelligent

Little, Jim


NCI: SBIR & STTR - Investor Forum - Collaborators

The 2012 NCI SBIR Investor Forum was sponsored by The National Cancer Institute's SBIR Development Center in partnership with the Foundation for the National Institutes of Health (FNIH) and in collaboration with Prescience International.


Internet Security Protocols Potential Customers and Collaborators  

E-print Network

and development community. · ANX security working group. Collaborators · NSA · INRIA, Korea Telecom · Cisco, Bay Networks, IBM T.J. Watson, BBN Technologies, NSA, Sable Systems Goal To expedite the research, development


Integrating Diverse Data Systems for International Collaboration  

NASA Astrophysics Data System (ADS)

International collaborations, especially ones that arise with little or no financial resources, still face challenges in opening up data collections via a wide variety of differing and often non-interoperable means. In turn, this hampers the collaborative process, slows or even prevents scientific exchange. Early efforts that proposed a centralized, and project specific data archive encountered many difficulties, ranging from little or no adoption, to the inability to provide required documentation and metadata to make the datasets findable or usable. In time, virtualized approaches appeared to gain traction, for e.g. virtual observatories. In this contribution, we report on several international collaboration case studies with distributed data systems; their needs, successes, challenges and failures and synthesize a set of suggested practices to inform future international collaboration efforts.

Fox, Peter



Aligning collaborative and culturally responsive evaluation approaches.  


The authors, three African-American women trained as collaborative evaluators, offer a comparative analysis of collaborative evaluation (O'Sullivan, 2004) and culturally responsive evaluation approaches (Frierson, Hood, & Hughes, 2002; Kirkhart & Hopson, 2010). Collaborative evaluation techniques immerse evaluators in the cultural milieu of the program, systematically engage stakeholders and integrate their program expertise throughout the evaluation, build evaluation capacity, and facilitate the co-creation of a more complex understanding of programs. However, the authors note that without explicit attention to considerations raised in culturally responsive evaluation approaches (for example, issues of race, power, and privilege), the voices and concerns of marginalized and underserved populations may be acknowledged, but not explicitly or adequately addressed. The intentional application of collaborative evaluation techniques coupled with a culturally responsive stance enhances the responsiveness, validity and utility of evaluations, as well as the cultural competence of evaluators. PMID:22284941

Askew, Karyl; Beverly, Monifa Green; Jay, Michelle L



The Collaborative for Gender Equity: Education  

NSDL National Science Digital Library

This page from the Collaborative for Gender Equity includes a number of links to articles on gender equity in education for the STEM disciplines. Science, engineering, mathematics and technology are covered in these materials. Publication dates are included.


Managing consistency in collaborative design environments  

NASA Astrophysics Data System (ADS)

In today's global economy, there is a significant paradigm shift to collaborative engineering design environments. One of key issues in the collaborative setting is the consistency model, which governs how to coordinate the activities of collaborators to ensure that they do not make inconsistent changes or updates to the shared objects. In this paper, we present a new consistency model which requires that all update operations will be executed in the casual order (causality) and all participants have the same view on the operations on the shared objects (view synchrony). A simple multicast-based protocol to implement the consistency model is presented. By employing vector time and token mechanisms, the protocol brings the shared objects from one consistent state to another, thus providing collaborators with a consistent view of the shared objects. A CORBA-based on-going prototyping implementation is outlined. Some of the related work are also discussed.

Miao, Chunyan; Yang, Zhonghua; Goh, Angela; Sun, Chengzheng; Sattar, Abdul



On Services for Collaborative Project Management  

NASA Astrophysics Data System (ADS)

This paper presents an approach for collaborative project management. The focus is on the support of collaboration, communication and trust. Several project management tools exist for monitoring and control the performance of project tasks. However, support of important intangible assets is more difficult to find. In the paper a leadership approach is identified as a management means and the use of new IT technology, especially social media for support of leadership in project management is discussed.

Ollus, Martin; Jansson, Kim; Karvonen, Iris; Uoti, Mikko; Riikonen, Heli


The Collaborative Digital Imaging Network Project  

NASA Astrophysics Data System (ADS)

The Digital Imaging Network (DIN) Project is a collaborative project among numerous components of the Department of Defense, Public Health Service, Veterans Administration, industry, academia, and the MITRE Corporation. The project is evaluating prototype DIN systems (DINS) at Georgetown University (in collaboration with George Washington University) in Washington, DC, and at the University of Washington in Seattle, WA. Results of the project will be used to plan DINS for implementation in fixed and deployable military medical care facilities in the 1990's.

Greberman, Melvyn; Goeringer, Fred; Shannon, Roger; Hagen, Raoul; Sweeney, Thomas; Ghaed, Victor; Thomas, Jerry



SPACE: A lightweight collaborative caching for clusters  

Microsoft Academic Search

In this paper, we introduce Systematic P2P Aided Cache Enhancement or SPACE, a new collaboration scheme among clients in a computer cluster of a high performance computing facility to share their caches\\u000a with each other. The collaboration is achieved in a distributed manner, and is designed based on peer-to-peer computing model.\\u000a The objective is to provide (1) a decentralized solution,

Mohammad Mursalin Akon; Mohammad Towhidul Islam; Xuemin Shen; Ajit Singh



Gearbox Reliability Collaborative (GRC) Description and Loading  

SciTech Connect

This document describes simulated turbine load cases in accordance to the IEC 61400-1 Ed.3 standard, which is representative of the typical wind turbine design process. The information presented herein is intended to provide a broad understanding of the gearbox reliability collaborative 750kW drivetrain and turbine configuration. In addition, fatigue and ultimate strength drivetrain loads resulting from simulations are presented. This information provides the bases for the analytical work of the gearbox reliability collaborative effort.

Oyague, F.




Microsoft Academic Search

For-profit firms use the internet to offer classes, courses and degree programmes in direct competition with nonprofit and government-supported colleges and universities. At the same time, many firms seek to partner with academic institutions in offering online instruction or distance learning.This paper outlines and discusses alternative models of academic\\/for-profit collaboration that are being developed in the USA. Collaboration requires the

Walter S. Baer



Collaboration within large groups in the classroom  

Microsoft Academic Search

The purpose of this paper is to show how a large group of students can work collaboratively in a synchronous way within the\\u000a classroom using the cheapest possible technological support. Making use of the features of Single Display Groupware and of\\u000a Multiple Mice we propose a computer-supported collaborative learning approach for big groups within the classroom. The approach\\u000a uses a

Eyal Szewkis; Miguel Nussbaum; Tal Rosen; Jose Abalos; Fernanda Denardin; Daniela Caballero; Arturo Tagle; Cristian Alcoholado


Leadership and Collaboration in Shared Virtual Environments  

Microsoft Academic Search

We present an experiment that investigates the behaviour of small groups of participants in a wide-area distributed collaborative virtual environment (CVE). This is the third and largest study in a series of experiments that have examined trios of participants carrying out a highly collaborative puzzle-solving task. The results reproducing those of earlier studies suggest a positive relationship between place-presence and

Anthony Steed; Mel Slater; Amela Sadagic; Adrian Bullock; Jolanda G. Tromp



AAAI-94 Presidential Address: Collaborative systems  

E-print Network

? The construction of computer systems that are intelligent, collaborative problem-solving partners is an important goal for both the science of AI and its application. From the scientific perspective, the development of theories and mechanisms to enable building collaborative systems presents exciting research challenges across AI subfields. From the applications perspective, the capability to collaborate with users and other systems is essential if large-scale information systems of the future are to assist users in finding the information they need and solving the problems they have. In this address, it is argued that collaboration must be designed into systems from the start; it cannot be patched on. Key features of collaborative activity are described, the scientific base provided by recent AI research is discussed, and several of the research challenges posed by collaboration are presented. It is further argued that research on, and the development of, collaborative systems should itself be a collaborative endeavor—within AI, across subfields of computer science, and with researchers in other fields. AI has always pushed forward on the frontiers of computer science. Our efforts to understand intelligent behavior and the ways in which it could be embodied in computer systems have led both to a richer scientific understanding of various aspects of intelligence and to the development of smarter computer systems. In his keynote address at AAAI-94, Raj Reddy described several of those advances as well as challenges for the future. The Proceedings of the AAAI Innovative Applications of Artificial Intelligence conferences contain descriptions of many commercial systems that employ AI techniques to provide greater power or flexibility. For this Presidential address, I have decided to focus on one such frontier area: the under-

Barbara J. Grosz



BIOGLYPHS: A Living Collaboration with Bioluminescent Organisms  

NSDL National Science Digital Library

BIOGLYPHS is an art and science collaboration initiated by members of the Center for Biofilm Engineering and the Montana State University School of Art. This website features two BIOGLYPHS exhibitions of living bioluminescent paintings that were created by teams of student and staff artists, scientists and engineers in 2002. The site includes a gallery of BIOGLYPH paintings, information about collaborators, comments from the guest book, and links to media coverage and related web pages.

MSU-Bozeman School of Art


US / Russia Collaboration in Plasma Astrophysics  

NSDL National Science Digital Library

The US/Russia collaboration in plasma astrophysics combines the efforts of scientists from two groups -- the Russian Academy of Science Institutes and Cornell University -- to solve many of the complicated problems associated with the magnetohydrodynamical (MHD). Students and educators can find thorough descriptions about the collaboration's studies in wind accretion to dipoles, disk accretion to dipoles, the origin of jets, and the accretion disks theory. Researchers will also find numerous downloadable published papers from 1992 to present.


Security and Policy for Group Collaboration  

SciTech Connect

“Security and Policy for Group Collaboration” was a Collaboratory Middleware research project aimed at providing the fundamental security and policy infrastructure required to support the creation and operation of distributed, computationally enabled collaborations. The project developed infrastructure that exploits innovative new techniques to address challenging issues of scale, dynamics, distribution, and role. To reduce greatly the cost of adding new members to a collaboration, we developed and evaluated new techniques for creating and managing credentials based on public key certificates, including support for online certificate generation, online certificate repositories, and support for multiple certificate authorities. To facilitate the integration of new resources into a collaboration, we improved significantly the integration of local security environments. To make it easy to create and change the role and associated privileges of both resources and participants of collaboration, we developed community wide authorization services that provide distributed, scalable means for specifying policy. These services make it possible for the delegation of capability from the community to a specific user, class of user or resource. Finally, we instantiated our research results into a framework that makes it useable to a wide range of collaborative tools. The resulting mechanisms and software have been widely adopted within DOE projects and in many other scientific projects. The widespread adoption of our Globus Toolkit technology has provided, and continues to provide, a natural dissemination and technology transfer vehicle for our results.

Ian Foster; Carl Kesselman



Partial Differential Equation Analysis in  

E-print Network

Partial Differential Equation Analysis in Biomedical Engineering PartialDifferentialEquationAnalysisin BiomedicalEngineering Partial Differential Equation Analysis in Biomedical Engineering Case Studies of multi-variable calculus, this introduction to computer-based partial differential equation (PDE

Gilchrist, James F.


Collaborative Commercial Space Situational Awareness  

NASA Astrophysics Data System (ADS)

There is an increasing recognition by commercial and civil space operators of the need for space situational awareness (SSA) data to support ongoing conjunction analysis, maneuver planning, and radio frequency interference mitigation as part of daily operations. While some SSA data is available from the Joint Space Operations Center via the Space Track web site, access to raw observations and photometric data is limited due to national security considerations. These data, however, are of significant value in calibrating intra- and inter-operator orbit determination results, determining inter-system biases, and assessing operating profiles in the geostationary orbit. This paper details an ongoing collaborative effort to collect and process optical observations and photometric data using a network of low-cost telescope installations and shows how these data are being used to support ongoing operations in the Space Data Center. This presentation will demonstrate how by leveraging advance photometric processing algorithms developed for Missile Defense Agency and the Ballistic Missile Defense (BMD) mission ExoAnalytic and AGI have been able to provide actionable SSA for satellite operators from small telescopes in less than optimal viewing conditions. Space has become an increasingly cluttered environment requiring satellite operators to remain forever vigilant in order to prevent collisions to preserve their assets and prevent further cluttering the space environment. The Joint Space Operations Center (JSpOC), which tracks all objects in earth orbit, reports possible upcoming conjunctions to operators by providing Conjunction Summary Messages (CSMs). However due to large positional uncertainties in the forward predicted position of space objects at the time closest approach the volume of CSMs is excessive to the point that maneuvers in response to CSMs without additional screening is cost prohibitive. CSSI and the Space Data Association have been able to screen most CSMs by using more accurate operator ephemeris. By screening with operator ephemeris alone they have been able to demonstrate that safety limits will not be exceeded in a good number of these encounters and that extra delta-V need to not be expended in a Collision Avoidance (COLA) maneuver. However there remains a decent portion of alerts that may warrant action especially when the secondary object is an uncontrolled space object such as a dead satellite or rocket body. By dynamically tasking the ESpOC observatories to provide real-time tracking and photometric characterization of the secondary objects in response to these CSMs satellite operators benefit from an additional method of conjunction screening. The refined tracks and conjunction assessments obtained by ESpOC screening allows operators to safely reduce the number of COLAs performed in response to safe close approaches and provide optimized COLA maneuver planning in response to validated threats.

Kelso, T. S.; Hendrix, D.; Sibert, D.; Hall, R. A.; Therien, W.



Solving Linear Equations  

NSDL National Science Digital Library

This webpage includes six examples of solving linear equations using balancing. Students learn to "keep the equation balanced by making the same changes to both sides of the equal sign." Six examples of this mathematical process are included, each one being slightly more challenging than the last. Equations include more than one operation, variables, multiple terms on the same side, parentheses and fractions. The process for solving each is explained step by step.



Writing Linear Equations  

NSDL National Science Digital Library

This chapter covers linear equations in slope-intercept form and point-slope form, standard form for linear equations, equations of parallel and perpendicular lines, and solving real world problems using linear models. There are a number of example questions (with solutions) covering each aspect for educators to either review with students or let students tackle on their own. Each section also ends with review problems for students to solve.

Andrew Gloag



Famous Equations and Inequalities  

NSDL National Science Digital Library

An idiosyncratic and personal selection of particularly important or particularly intriguing mathematical equations, not all of them complicated. Mathematical Constants; The definition of Pi; The definition of e; A differential equation; The Pythagorean Theorem; The Fundamental Theorem of Calculus; Taylor Series; Eigenvalue Problems; Linear Systems; A Variational Principle; The Mandelbrot Set; Loan Payments; The Triangle Inequality; Reverse Triangle Inequality; Cantor's Theorem. Also equations for physics: Energy, mass, and the speed of light; Gravity.

Alfeld, Peter


Linear Partial Differential Equations  

NSDL National Science Digital Library

This course, presented by MIT and taught by professor Matthew Hancock, covers the partial differential equations of applied mathematics, including diffusion, Laplace/Poisson, and wave equations. Methods and tools for solving these equations are also taught. The course includes lecture notes as well as assignments and exams with solutions. MIT presents OpenCourseWare as free educational material online. No registration or enrollment is required to use the materials.

Hancock, Matthew


Reflective Synergy: A Research Model for Collaborative Inquiry.  

ERIC Educational Resources Information Center

A theoretical model for collaborative inquiry as a research methodology in adult education has been proposed. The model, which likens collaborative inquiry to the process of organic gardening, depicts a sphere in motion where the cycles of collaborative inquiry revolve in continuous motion. In the center of the sphere is a collaborative self that…

Mealman, Craig A.; Lawrence, Randee Lipson


Supply-side collaboration and its value in supply chains  

Microsoft Academic Search

Collaboration has been recognized as a significant process that holds the value creation opportunity in supply chain management. Evaluating the value of collaboration is thus necessary for developing the effective collaboration mechanisms. This paper presents the evaluation approach specifically focusing on the supply-side collaboration on inventory decisions between a supplier and a distributor in a two-echelon supply chain. Two scenarios

Yonghui Fu; Rajesh Piplani



A Comparison of Collaborative and Traditional Instruction in Higher Education  

ERIC Educational Resources Information Center

Although collaborative instructional techniques have become popular in college courses, it is unclear whether collaborative techniques can replace more traditional instructional methods. We examined the efficacy of collaborative courses (in-class, collaborative activities with no lectures) compared to traditional lecture courses (in-class,…

Gubera, Chip; Aruguete, Mara S.



Shared Encoding and the Costs and Benefits of Collaborative Recall  

ERIC Educational Resources Information Center

We often remember in the company of others. In particular, we routinely collaborate with friends, family, or colleagues to remember shared experiences. But surprisingly, in the experimental collaborative recall paradigm, collaborative groups remember less than their potential, an effect termed "collaborative inhibition". Rajaram and…

Harris, Celia B.; Barnier, Amanda J.; Sutton, John



A simultaneous collaborative framework for mould and die design  

Microsoft Academic Search

The fiercely competitive global market is obligating mould and die manufacturers to embrace Computer-Supported Collaborative Design (CSCD) as a way to shorten delivery time and improve product quality. A number of collaborative tools have been developed to keep up with demand. Unfortunately, these existing tools support either collaborative review or collaborative design, but hardly consider the seamless integration of the

Chang Li; Jian Jun Li



Interoperative end-user process modelling for process collaborative manufacturing  

Microsoft Academic Search

As business environments change rapidly, the ability to quickly set up a collaborative automated business processes is desirable. Collaborative business processes are increasingly driven by business agility, adaptability and flexibility, particularly in a modern manufacturing enterprise environment. Traditionally, collaborative business processes are used among big organisations. Many of collaborative business process systems are designed for a long-term use with central

Lai Xu; Paul de Vrieze; Keith Phalp; Sheridan Jeary; Peng Liang



A new evolution equation  

E-print Network

We propose a new evolution equation for the gluon density relevant for the region of small $x_B$. It generalizes the GLR equation and allows deeper penetration in dense parton systems than the GLR equation does. This generalization consists of taking shadowing effects more comprehensively into account by including multigluon correlations, and allowing for an arbitrary initial gluon distribution in a hadron. We solve the new equation for fixed $\\alpha_s$. We find that the effects of multigluon correlations on the deep-inelastic structure function are small.

E. Laenen; E. Levin



Integrating the Jacobian equation  

E-print Network

We show essentially that the differential equation $\\frac{\\partial (P,Q)}{\\partial (x,y)} =c \\in {\\mathbb C}$, for $P,\\,Q \\in {\\mathbb C}[x,y]$, may be "integrated", in the sense that it is equivalent to an algebraic system of equations involving the homogeneous components of $P$ and $Q$. Furthermore, the first equations in this system give explicitly the homogeneous components of $Q$ in terms of those of $P$. The remaining equations involve only the homogeneous components of $P$.

Airton von Sohsten de Medeiros; Ráderson Rodrigues da Silva



Explicit equations for infiltration  

NASA Astrophysics Data System (ADS)

SummaryUnderstanding infiltration processes is one of the fundamental points in the theory of drainage and irrigation engineering. The infiltration phenomenon has two limiting behaviors given by the two-parameter Green-Ampt and Talsma-Parlange equations. Both equations are unified to form a general three-parameter formula. The third parameter interpolates between these two limiting cases. This investigation attempts to find an explicit form of the generalized equation. The explicit equation is accurate, simple and easy to use in practical situations.

Swamee, Prabhata K.; Rathie, Pushpa N.; Ozelim, Luan Carlos de S. M.



Collaborative Tracking of Image Features Based on Projective Invariance  

NASA Astrophysics Data System (ADS)

In past manned lunar landing missions, such as Apollo 14, spatial disorientation of astronauts substantially compromised the productivities of astronauts, and caused safety and mission success problems. The non-GPS lunar environment has micro-gravity field, and lacks both spatial recognition cues and reference objects which are familiar to the human biological sensors related to spatial recognition (e.g. eyes). Such an environment causes misperceptions of the locations of astronauts and targets and their spatial relations, as well as misperceptions of the heading direction and travel distances of astronauts. These spatial disorientation effects can reduce productivity and cause life risks in lunar manned missions. A navigation system, which is capable of locating astronauts and tracking the movements of them on the lunar surface, is critical for future lunar manned missions where multiple astronauts will traverse more than 100km from the lander or the base station with the assistance from roving vehicle, and need real-time navigation support for effective collaborations among them. Our earlier research to solve these problems dealt with developing techniques to enable a precise, flexible and reliable Lunar Astronaut Spatial Orientation and Information System (LASOIS) capable of delivering real-time navigation information to astronauts on the lunar surface. The LASOIS hardware was a sensor network composed of orbital, ground and on-suit sensors: the Lunar Reconnaissance Orbiter Camera (LROC), radio beacons, the on-suit cameras, and shoe-mounted Inertial Measurement Unit (IMU). The LASOIS software included efficient and robust algorithms for estimating trajectory from IMU signals, generating heading information from imagery acquired from on-suit cameras, and an Extended Kalman Filter (EKF) based approach for integrating these spatial information components to generate the trajectory of an astronaut with meter-level accuracy. Moreover, LASOIS emphasized multi-mode sensors for improving the flexibility and robustness of the system. From the experimental results during three field tests for the LASOIS system, we observed that most of the errors in the image processing algorithm are caused by the incorrect feature tracking. This dissertation addresses the feature tracking problem in image sequences acquired from cameras. Despite many alternatives to feature tracking problem, iterative least squares solution solving the optical flow equation has been the most popular approach used by many in the field. This dissertation attempts to leverage the former efforts to enhance feature tracking methods by introducing a view geometric constraint to the tracking problem, which provides collaboration among features. In contrast to alternative geometry based methods, the proposed approach provides an online solution to optical flow estimation in a collaborative fashion by exploiting Horn and Schunck flow estimation regularized by view geometric constraints. Proposed collaborative tracker estimates the motion of a feature based on the geometry of the scene and how the other features are moving. Alternative to this approach, a new closed form solution to tracking that combines the image appearance with the view geometry is also introduced. We particularly use invariants in the projective coordinates and conjecture that the traditional appearance solution can be significantly improved using view geometry. The geometric constraint is introduced by defining a new optical flow equation which exploits the scene geometry from a set drawn from tracked features. At the end of each tracking loop the quality of the tracked features is judged using both appearance similarity and geometric consistency. Our experiments demonstrate robust tracking performance even when the features are occluded or they undergo appearance changes due to projective deformation of the template. The proposed collaborative tracking method is also tested in the visual navigation algorithm of the LASOIS system instead of original KLT tracking method for the experiment data from

Jiang, Jinwei


Collaborative inhibition in spatial memory retrieval.  


Collaborative inhibition refers to the finding that pairs of people working together to retrieve information from memory-a collaborative group-often retrieve fewer unique items than do nominal pairs, who retrieve individually but whose performance is pooled. Two experiments were designed to explore whether collaborative inhibition, which has heretofore been studied using traditional memory stimuli such as word lists, also characterizes spatial memory retrieval. In the present study, participants learned a layout of objects and then reconstructed the layout from memory, either individually or in pairs. The layouts created by collaborative pairs were more accurate than those created by individuals, but less accurate than those of nominal pairs, providing evidence for collaborative inhibition in spatial memory retrieval. Collaborative inhibition occurred when participants were allowed to dictate the order of object placement during reconstruction (Exp. 1), and also when object order was imposed by the experimenter (Exp. 2), which was intended to disrupt the retrieval processes of pairs as well as of individuals. Individual tests of perspective taking indicated that the underlying representations of pair members were no different than those of individuals; in all cases, spatial memories were organized around a reference frame aligned with the studied perspective. These results suggest that inhibition is caused by the product of group recall (i.e., seeing a partner's object placement), not by the process of group recall (i.e., taking turns choosing an object to place). The present study has implications for how group performance on a collaborative spatial memory task may be optimized. PMID:24622929

Sjolund, Lori A; Erdman, Matthew; Kelly, Jonathan W



National Wind Distance Learning Collaborative  

SciTech Connect

Executive Summary The energy development assumptions identified in the Department of Energy's position paper, 20% Wind Energy by 2030, projected an exploding demand for wind energy-related workforce development. These primary assumptions drove a secondary set of assumptions that early stage wind industry workforce development and training paradigms would need to undergo significant change if the workforce needs were to be met. The current training practice and culture within the wind industry is driven by a relatively small number of experts with deep field experience and knowledge. The current training methodology is dominated by face-to-face, classroom based, instructor present training. Given these assumptions and learning paradigms, the purpose of the National Wind Distance Learning Collaborative was to determine the feasibility of developing online learning strategies and products focused on training wind technicians. The initial project scope centered on (1) identifying resources that would be needed for development of subject matter and course design/delivery strategies for industry-based (non-academic) training, and (2) development of an appropriate Learning Management System (LMS). As the project unfolded, the initial scope was expanded to include development of learning products and the addition of an academic-based training partner. The core partners included two training entities, industry-based Airstreams Renewables and academic-based Lake Area Technical Institute. A third partner, Vision Video Interactive, Inc. provided technology-based learning platforms (hardware and software). The revised scope yielded an expanded set of results beyond the initial expectation. Eight learning modules were developed for the industry-based Electrical Safety course. These modules were subsequently redesigned and repurposed for test application in an academic setting. Software and hardware developments during the project's timeframe enabled redesign providing for student access through the use of tablet devices such as iPads. Early prototype Learning Management Systems (LMS) featuring more student-centric access and interfaces with emerging social media were developed and utilized during the testing applications. The project also produced soft results involving cross learning between and among the partners regarding subject matter expertise, online learning pedagogy, and eLearning technology-based platforms. The partners believe that the most significant, overarching accomplishment of the project was the development and implementation of goals, activities, and outcomes that significantly exceeded those proposed in the initial grant application submitted in 2009. Key specific accomplishments include: (1) development of a set of 8 online learning modules addressing electrical safety as it relates to the work of wind technicians; (3) development of a flexible, open-ended Learning Management System (LMS): (3) creation of a robust body of learning (knowledge, experience, skills, and relationships). Project leaders have concluded that there is substantial resource equity that could be leverage and recommend that it be carried forward to pursue a Next Stage Opportunity relating to development of an online core curriculum for institute and community college energy workforce development programs.

Dr. James B. Beddow



Collaboration Contexts, Services, Events and Actions: Four Steps Closer to Adaptive Collaboration Support in IMS LD  

Microsoft Academic Search

The IMS Learning Design specification, a widely known language for modelling collaboration scripts, has been criticized for a number of shortcomings and general lack of support for comprehensive adaptation features. We propose concrete extensions to the specification, aiming to alleviate deficiencies by specifically addressing (group) collaboration contexts, flexible service specification, fine-grained event handling and a wide range of adaptive interventions

Florian König; Alexandros Paramythis



Some Female Professors' Experiences of Collaboration: Mapping the Collaborative Process through Rough Terrain.  

ERIC Educational Resources Information Center

Seven Canadian female faculty members described their involvement in collaborative projects, including collaborations with a school principal, school teachers, a former student, a graduate student, and other faculty. Common themes included building rapport, establishing goals and rewards, negotiation of tasks, commitment and interpersonal support,…

Elliott, Anne E.; Woloshyn, Vera E.



Real-Time Mutual Gaze Perception Enhances Collaborative Learning and Collaboration Quality  

ERIC Educational Resources Information Center

In this paper we present the results of an eye-tracking study on collaborative problem-solving dyads. Dyads remotely collaborated to learn from contrasting cases involving basic concepts about how the human brain processes visual information. In one condition, dyads saw the eye gazes of their partner on the screen; in a control group, they did not…

Schneider, Bertrand; Pea, Roy



Collaborative Rhetorical Structure: A Discourse Analysis Method for Analyzing Student Collaborative Inquiry via Computer Conferencing  

ERIC Educational Resources Information Center

Various formats of online discussion have proven valuable for enhancing learning and collaboration in distance and blended learning contexts. However, despite their capacity to reveal essential processes in collaborative inquiry, current mainstream analytical frameworks, such as the cognitive presence framework (Garrison, Anderson, & Archer, 2001)…

Kou, Xiaojing



Coral Reef Watch activities in Australia: An Overview of Collaborators and Collaborations  

E-print Network

? · Coral Reef Watch (CRW) aims to assist in the management, study and assessment of impacts1 Coral Reef Watch activities in Australia: An Overview of Collaborators and Collaborations scott. HeronScott F. Heron NOAA/NESDISNOAA/NESDIS ­­ Coral Reef WatchCoral Reef Watch #12;2 What Does CRW Do

Kuligowski, Bob


Examining What We Mean by "Collaboration" in Collaborative Action Research: A Cross-Case Analysis  

ERIC Educational Resources Information Center

The purpose of this paper is to report on the nature of collaboration in a multi-year, large-scale collaborative action research project in which a teachers' federation (in Ontario, Canada), university researchers and teachers partnered to investigate teacher-selected topics for inquiry. Over two years, 14 case studies were generated involving six…

Bruce, Catherine D.; Flynn, Tara; Stagg-Peterson, Shelley



An Examination of the Characteristics Impacting Collaborative Tool Efficacy: The Uncanny Valley of Collaborative Tools  

ERIC Educational Resources Information Center

As collaboration among teams that are distributed in time and space is becoming increasingly important, there is a need to understand the efficacy of tools available to support that collaboration. This study employs a combination of the Technology Acceptance Model (TAM) and the Task-Technology Fit (TTF) model to compare four different technologies…

Dishaw, Mark T.; Eierman, Michael A.; Iversen, Jacob H.; Philip, George



Collaboration as One Aspect of Quality: A Perspective of Collaboration and Pedagogical Quality in Educational Settings  

ERIC Educational Resources Information Center

The aim of this article is to problematise and discuss collaboration between children as a means of learning and as an essential aspect of pedagogical quality in educational settings. In theories of learning, children's social interaction and collaboration are highlighted as fundamental to their learning. This implies that children's opportunities…

Williams, Pia; Sheridan, Sonja



Mutual Engagement in Collaboration Our position is that creative collaboration is  

E-print Network

Mutual Engagement in Collaboration Abstract Our position is that creative collaboration is characterized by points of mutual engagement between participants. In this paper we outline our concept of mutual engagement, propose design features to support it, and describe a novel interface designed

Bryan-Kinns, Nick


Scientific sketching for collaborative VR visualization design.  


We present four studies investigating tools and methodologies for artist-scientist-technologist collaboration in designing multivariate, virtual reality (VR) visualizations. Design study 1 identifies the promise of 3D drawing-style interfaces for VR design and also establishes limitations of these tools with respect to precision and support for animation. Design study 2 explores animating artist-created visualization designs with scientific 3D fluid flow data. While results captured an accurate sense of flow that was advantageous as compared to the results of study 1, the potential for visual exploration using the design tools tested was limited. Design study 3 reveals the importance of a new 3D interface that overcomes the precision limitation found in study 1 while remaining accessible to artist collaborators. Drawing upon previous results, design study 4 engages collaborative teams in a design process that begins with traditional paper sketching and moves to animated, interactive, VR prototypes "sketched" by designers in VR using interactive 3D tools. Conclusions from these four studies identify important characteristics of effective artist-accessible VR visualization design tools and lead to a proposed formalized methodology for successful collaborative design that we expect to be useful in guiding future collaborations. We call this proposed methodology Scientific Sketching. PMID:18467758

Keefe, Daniel F; Acevedo, Daniel; Miles, Jadrian; Drury, Fritz; Swartz, Sharon M; Laidlaw, David H



Tools and collaborative environments for bioinformatics research  

PubMed Central

Advanced research requires intensive interaction among a multitude of actors, often possessing different expertise and usually working at a distance from each other. The field of collaborative research aims to establish suitable models and technologies to properly support these interactions. In this article, we first present the reasons for an interest of Bioinformatics in this context by also suggesting some research domains that could benefit from collaborative research. We then review the principles and some of the most relevant applications of social networking, with a special attention to networks supporting scientific collaboration, by also highlighting some critical issues, such as identification of users and standardization of formats. We then introduce some systems for collaborative document creation, including wiki systems and tools for ontology development, and review some of the most interesting biological wikis. We also review the principles of Collaborative Development Environments for software and show some examples in Bioinformatics. Finally, we present the principles and some examples of Learning Management Systems. In conclusion, we try to devise some of the goals to be achieved in the short term for the exploitation of these technologies. PMID:21984743

Giugno, Rosalba; Pulvirenti, Alfredo



Framework solutions for complete collaborative environments  

NASA Astrophysics Data System (ADS)

Collaboration of experts from different domains within an enterprise has always posed logistical and knowledge management challenges to managers and members of the collaboration. Scheduling meetings, arranging travel, getting data and information into the right hands at the right time all require time, money and energy that could be better spent on product development. Advances in information technology have made it easier to communicate to solve, or at least mitigate, some of these problems using e-mail, audio conferencing, and database management software, but a great detail of human intervention is still required to make these collaborations operate smoothly. Over the past ten years enterprises have come to require more than just total asset visibility and human communication capabilities. To design and field products better, faster and cheaper more human creativity and energy must be focused on the products and less on the operation of the collaboration. The collaborative environment solutions of the future must not only provide the communication and knowledge management that exist today, but also provide seamless access to resources and information, product and process modeling and the advanced decision support that results from the availability of necessary resources and information.

Saunders, Vance M.; Maddox, Derek



University - industry collaborations: models, drivers and cultures.  


The way academic institutions and pharmaceutical companies have been approaching collaborations has changed significantly in recent years. A multitude of interaction models were tested and critical factors that drive successful collaborations have been proposed. Based on this experience the current consensus in the pharmaceutical industry is to pursue one of two strategies: an open innovation approach to source discoveries wherever they occur, or investing selectively into scientific partnerships that churn out inventions that can be translated from bench to bedside internally. While these strategies may be intuitive, to form and build sustainable relationships between academia and large multinational healthcare enterprises is proving challenging. In this article we explore some of the more testing aspects of these collaborations, approaches that various industrial players have taken and provide our own views on the matter. We found that understanding and respecting each other's organisational culture and combining the intellectual and technological assets to answer big scientific questions accelerates and improves the quality of every collaboration. Upon discussing the prevailing cooperation models in the university - industry domain, we assert that science-driven collaborations where risks and rewards are shared equally without a commercial agenda in mind are the most impactful. PMID:25658854

Ehrismann, Dominic; Patel, Dhavalkumar



A new security model for collaborative environments  

SciTech Connect

Prevalent authentication and authorization models for distributed systems provide for the protection of computer systems and resources from unauthorized use. The rules and policies that drive the access decisions in such systems are typically configured up front and require trust establishment before the systems can be used. This approach does not work well for computer software that moderates human-to-human interaction. This work proposes a new model for trust establishment and management in computer systems supporting collaborative work. The model supports the dynamic addition of new users to a collaboration with very little initial trust placed into their identity and supports the incremental building of trust relationships through endorsements from established collaborators. It also recognizes the strength of a users authentication when making trust decisions. By mimicking the way humans build trust naturally the model can support a wide variety of usage scenarios. Its particular strength lies in the support for ad-hoc and dynamic collaborations and the ubiquitous access to a Computer Supported Collaboration Workspace (CSCW) system from locations with varying levels of trust and security.

Agarwal, Deborah; Lorch, Markus; Thompson, Mary; Perry, Marcia



Towards Efficient Collaboration in Cyber Security  

SciTech Connect

Cyber security analysts in different geographical and organizational domains are often largely tasked with similar duties, albeit with domain-specific variations. These analysts necessarily perform much of the same work independently— for instance, analyzing the same list of security bulletins released by largely the same set of software vendors. As such, communication and collaboration between such analysts would be mutually beneficial to the analysts involved, potentially reducing redundancy and offering the opportunity to preemptively alert each other to high-severity security alerts in a more timely fashion. However, several barriers to practical and efficient collaboration exist, and as such, no such framework exists to support such efforts. In this paper, we discuss the inherent difficulties which make efficient collaboration between cyber security analysts a difficult goal to achieve. We discuss preliminary ideas and concepts towards a collaborative cyber-security framework currently under development, whose goal is to facilitate analyst collaboration across these boundaries. While still in its early stages, we describe work-in-progress towards achieving this goal, including motivation, functionality, concepts, and a high-level description of the proposed system architecture.

Hui, Peter SY; Bruce, Joseph R.; Fink, Glenn A.; Gregory, Michelle L.; Best, Daniel M.; McGrath, Liam R.; Endert, Alexander



Collective action and the collaborative brain  

PubMed Central

Humans are unique both in their cognitive abilities and in the extent of cooperation in large groups of unrelated individuals. How our species evolved high intelligence in spite of various costs of having a large brain is perplexing. Equally puzzling is how our ancestors managed to overcome the collective action problem and evolve strong innate preferences for cooperative behaviour. Here, I theoretically study the evolution of social-cognitive competencies as driven by selection emerging from the need to produce public goods in games against nature or in direct competition with other groups. I use collaborative ability in collective actions as a proxy for social-cognitive competencies. My results suggest that collaborative ability is more likely to evolve first by between-group conflicts and then later be utilized and improved in games against nature. If collaborative abilities remain low, the species is predicted to become genetically dimorphic with a small proportion of individuals contributing to public goods and the rest free-riding. Evolution of collaborative ability creates conditions for the subsequent evolution of collaborative communication and cultural learning. PMID:25551149

Gavrilets, Sergey



Tools and collaborative environments for bioinformatics research.  


Advanced research requires intensive interaction among a multitude of actors, often possessing different expertise and usually working at a distance from each other. The field of collaborative research aims to establish suitable models and technologies to properly support these interactions. In this article, we first present the reasons for an interest of Bioinformatics in this context by also suggesting some research domains that could benefit from collaborative research. We then review the principles and some of the most relevant applications of social networking, with a special attention to networks supporting scientific collaboration, by also highlighting some critical issues, such as identification of users and standardization of formats. We then introduce some systems for collaborative document creation, including wiki systems and tools for ontology development, and review some of the most interesting biological wikis. We also review the principles of Collaborative Development Environments for software and show some examples in Bioinformatics. Finally, we present the principles and some examples of Learning Management Systems. In conclusion, we try to devise some of the goals to be achieved in the short term for the exploitation of these technologies. PMID:21984743

Romano, Paolo; Giugno, Rosalba; Pulvirenti, Alfredo



Carving a niche: establishing bioinformatics collaborations  

PubMed Central

Objectives: The paper describes collaborations and partnerships developed between library bioinformatics programs and other bioinformatics-related units at four academic institutions. Methods: A call for information on bioinformatics partnerships was made via email to librarians who have participated in the National Center for Biotechnology Information's Advanced Workshop for Bioinformatics Information Specialists. Librarians from Harvard University, the University of Florida, the University of Minnesota, and Vanderbilt University responded and expressed willingness to contribute information on their institutions, programs, services, and collaborating partners. Similarities and differences in programs and collaborations were identified. Results: The four librarians have developed partnerships with other units on their campuses that can be categorized into the following areas: knowledge management, instruction, and electronic resource support. All primarily support freely accessible electronic resources, while other campus units deal with fee-based ones. These demarcations are apparent in resource provision as well as in subsequent support and instruction. Conclusions and Recommendations: Through environmental scanning and networking with colleagues, librarians who provide bioinformatics support can develop fruitful collaborations. Visibility is key to building collaborations, as is broad-based thinking in terms of potential partners. PMID:16888668

Lyon, Jennifer A.; Tennant, Michele R.; Messner, Kevin R.; Osterbur, David L.



Differential Equations Textbook  

NSDL National Science Digital Library

This is a free textbook which covers material for an introductory course on differential equations with some partial differential equations material, though it assumes knowledge of matrix theory. It includes a section on computing Fourier series of polynomials. It also includes a link to the freely available student solutions manual.

William F. Trench



Reduced Braginskii equations  

SciTech Connect

A set of reduced Braginskii equations is derived without assuming flute ordering and the Boussinesq approximation. These model equations conserve the physical energy. It is crucial at finite {beta} that we solve the perpendicular component of Ohm`s law to conserve the physical energy while ensuring the relation {del} {center_dot} j = 0.

Yagi, M. [Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment; Horton, W. [Texas Univ., Austin, TX (United States). Inst. for Fusion Studies



Forms of Linear Equations  

NSDL National Science Digital Library

Students learn about four forms of equations: direct variation, slope-intercept form, standard form and point-slope form. They graph and complete problem sets for each, converting from one form of equation to another, and learning the benefits and uses of each.

VU Bioengineering RET Program, School of Engineering,


Uniqueness of Maxwell's Equations.  

ERIC Educational Resources Information Center

Shows that, as a consequence of two feasible assumptions and when due attention is given to the definition of charge and the fields E and B, the lowest-order equations that these two fields must satisfy are Maxwell's equations. (Author/GA)

Cohn, Jack



Sweetly Balanced Equations  

NSDL National Science Digital Library

In this (edible) activity, learners balance chemical equations using different kinds and colors of candy that represent different atoms. Learners will work in pairs and explore conservation of atoms. One partner will use his/her candy to simulate the reactant (left) side of the equation and the other partner will use his/her candy to simulate the product (right) side.

Don Rathjen



The String Deviation Equation  

E-print Network

The relative motion of many particles can be described by the geodesic deviation equation. This can be derived from the second covariant variation of the point particle's action. It is shown that the second covariant variation of the string action leads to a string deviation equation.

Mark D. Roberts



Reduced Braginskii equations  

SciTech Connect

A set of reduced Braginskii equations is derived without assuming flute ordering and the Boussinesq approximation. These model equations conserve the physical energy. It is crucial at finite [beta] that the perpendicular component of Ohm's law be solved to ensure [del][center dot][bold j]=0 for energy conservation.

Yagi, M.; Horton, W. (Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (United States))



Solving Literal Equations  

NSDL National Science Digital Library

Learn how to solve equations and formulas for a specific variable Core Standard: A.CED.4 Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. 1. Watch the following short videos NROC Video: Solving for a specific variable View the ...

Mrs. Ball



Energy Conservation (Bernoulli's Equation)  

NSDL National Science Digital Library

Professor Chiang Shih's Thermal-Fluids I course at the FAMU-FSU College of Engineering combines "the traditional thermal disciplines in Thermodynamics, heat transfer and fluid mechanics." This PowerPoint presentation, from Shih's lecture notes, illustrates Benoulli's Equation and energy conservation. Along with mathematical equations, there are also a number of illustrations and examples which show the concepts discussed.

Shih, Chiang


The Generalized Jacobi Equation  

E-print Network

The Jacobi equation in pseudo-Riemannian geometry determines the linearized geodesic flow. The linearization ignores the relative velocity of the geodesics. The generalized Jacobi equation takes the relative velocity into account; that is, when the geodesics are neighboring but their relative velocity is arbitrary the corresponding geodesic deviation equation is the generalized Jacobi equation. The Hamiltonian structure of this nonlinear equation is analyzed in this paper. The tidal accelerations for test particles in the field of a plane gravitational wave and the exterior field of a rotating mass are investigated. In the latter case, the existence of an attractor of uniform relative radial motion with speed $2^{-1/2}c\\approx 0.7 c$ is pointed out. The astrophysical implications of this result for the terminal speed of a relativistic jet is briefly explored.

C. Chicone; B. Mashhoon



Incorporating Helpful Behavior into Collaborative Planning  

E-print Network

This paper considers the design of agent strategies for deciding whether to help other members of a group with whom an agent is engaged in a collaborative activity. Three characteristics of collaborative planning must be addressed by these decision-making strategies: agents may have only partial information about their partners ’ plans for sub-tasks of the collaborative activity; the effectiveness of helping may not be known a priori; and, helping actions have some associated cost. The paper proposes a novel probabilistic representation of other agents ’ beliefs about the recipes selected for their own or for the group activity, given partial information. This representation is compact, and thus makes reasoning about helpful behavior tractable. The paper presents a decision-theoretic mechanism that uses this representation

Ece Kamar; Barbara J. Grosz; Multiagent Systems


French Pro/Am collaborations in exoplanet  

NASA Astrophysics Data System (ADS)

Amateur astronomers have access to huge telescope time and can reach photometric precision up to a few mmag as well as radial velocity precision up to ˜ 50m.s-1 on brightest stars. We will first present some results of french amateur astronomers in transit photometry and radial velocity and then, we will present an over-view of all the collaborations which can be done between professional and amateur astronomers in the competitive exoplanet domain, and especially the current collaboration between french Pro & Am astronomers which was used in publication in A&A. Finally, we will present a new internet wiki page which goal is to develop such collaboration in different countries.

Santerne, A.; Moutou, C.; Vanhuysse, M.; Bouchy, F.; Buil, C.; Cochard, F.; Thizy, O.; Martinez, P.; Desnoux, V.; Pujol, M.; Colas, F.



Collaborative Product Line Requirements Engineering Using Rationale  

NASA Astrophysics Data System (ADS)

Variability management is the central part of software product line engineering. Due to the separation of domain and application engineering, product line requirements engineeringproduct line requirements engineering encounters several collaboration problems during variability management. These collaboration problems have an additional layer of complexity, in case, product line organizations are geographically distributed. To address the collaboration problems, we propose a new methodology called issue-based variability management, which is based on the extension of variability management using rationale management. In particular, variability meta-model is viewed as a part of rhetorical rationale model. The methodology is explained and evaluated based on a combination of orthogonal variability model (OVM) and a rationale management approach based on questions, options and criteria (QOC).

Thurimella, Anil K.


Derivation of Dirac's Equation from the Evans Wave Equation  

Microsoft Academic Search

The Evans wave equation [1] of general relativity is expressed in spinor form, thus producing the Dirac equation in general relativity. The Dirac equation in special relativity is recovered in the limit of Euclidean or flat spacetime. By deriving the Dirac equation from the Evans equation it is demonstrated that the former originates in a novel metric compatibility condition, a

M. W. Evans



Tech Trek: The collaborative works of wikis  

NSDL National Science Digital Library

Wikipedia is part of a new generation of public documents--collectively known as wikis --to which many different writers may make contributions. Due to the collaborative nature of wikis, controversy flares up from time to time about the veracity or objectivity of the information. However, the public has embraced these new collaborative forums as convenient sources of information, and you can use similar technology to establish your students as writers and creators of their own classroom documents. This month's column describes how to incorporate this popular and flexible technology into the science curriculum.

Edwin P. Christmann



Implementation and Performance Issues in Collaborative Optimization  

NASA Technical Reports Server (NTRS)

Collaborative optimization is a multidisciplinary design architecture that is well-suited to large-scale multidisciplinary optimization problems. This paper compares this approach with other architectures, examines the details of the formulation, and some aspects of its performance. A particular version of the architecture is proposed to better accommodate the occurrence of multiple feasible regions. The use of system level inequality constraints is shown to increase the convergence rate. A series of simple test problems, demonstrated to challenge related optimization architectures, is successfully solved with collaborative optimization.

Braun, Robert; Gage, Peter; Kroo, Ilan; Sobieski, Ian



A Virtual Mission Operations Center: Collaborative Environment  

NASA Technical Reports Server (NTRS)

The Virtual Mission Operations Center - Collaborative Environment (VMOC-CE) intent is to have a central access point for all the resources used in a collaborative mission operations environment to assist mission operators in communicating on-site and off-site in the investigation and resolution of anomalies. It is a framework that as a minimum incorporates online chat, realtime file sharing and remote application sharing components in one central location. The use of a collaborative environment in mission operations opens up the possibilities for a central framework for other project members to access and interact with mission operations staff remotely. The goal of the Virtual Mission Operations Center (VMOC) Project is to identify, develop, and infuse technology to enable mission control by on-call personnel in geographically dispersed locations. In order to achieve this goal, the following capabilities are needed: Autonomous mission control systems Automated systems to contact on-call personnel Synthesis and presentation of mission control status and history information Desktop tools for data and situation analysis Secure mechanism for remote collaboration commanding Collaborative environment for remote cooperative work The VMOC-CE is a collaborative environment that facilitates remote cooperative work. It is an application instance of the Virtual System Design Environment (VSDE), developed by NASA Goddard Space Flight Center's (GSFC) Systems Engineering Services & Advanced Concepts (SESAC) Branch. The VSDE is a web-based portal that includes a knowledge repository and collaborative environment to serve science and engineering teams in product development. It is a "one stop shop" for product design, providing users real-time access to product development data, engineering and management tools, and relevant design specifications and resources through the Internet. The initial focus of the VSDE has been to serve teams working in the early portion of the system/product lifecycle - concept development, proposal preparation, and formulation. The VMOC-CE expands the application of the VSDE into the operations portion of the system lifecycle. It will enable meaningful and real-time collaboration regardless of the geographical distribution of project team members. Team members will be able to interact in satellite operations, specifically for resolving anomalies, through access to a desktop computer and the Internet. Mission Operations Management will be able to participate and monitor up to the minute status of anomalies or other mission operations issues. In this paper we present the VMOC-CE project, system capabilities, and technologies.

Medina, Barbara; Bussman, Marie; Obenschain, Arthur F. (Technical Monitor)



Gearbox Reliability Collaborative Update: A Brief (Presentation)  

SciTech Connect

This presentation is an update on the Gearbox Reliability Collaborative (GRC) for the AWEA Wind Project Operations, Maintenance & Reliability Seminar. GRC accomplishments are: (1) Failure database software deployed - partners see business value for themselves and customers; (2) Designed, built, instrumented, and tested two gearboxes - (a) Generated unprecedented public domain test data from both field testing and dynamometer testing, (b) Different responses from 'identical' gearboxes, (c) Demonstrated importance of non-torque loading and modeling approach; and (3) Active collaborative, with wide industry support, leveraging DOE funding - Modeling round robin and Condition Monitoring round robin.

Sheng, S.; Keller, J.; McDade, M.



Biospecimens, biobanking and global cancer research collaborations.  


The disparities in prostate cancer incidence and mortality continue to be a global public health problem. Efforts to address the prostate cancer disparity in black men have been met with a number of challenges, specifically in the accessibility to biospecimens in the context of global prostate cancer collaborations. During the International Educational Workshop at the Science of Global Prostate Cancer Disparities conference held 1-4 November 2012 in Nassau, the Bahamas, an overview of biobanking and biospecimen repositories, and materials transfer in global prostate cancer collaborations were discussed. The challenges faced by low-resource countries were identified, and potential solutions were recommended. PMID:25228910

Ragin, Camille; Park, Jong Y



Hospital-SNF collaboration cuts readmission rates.  


Montefiore Medical Center's collaboration with five skilled nursing facilities on improving transitions has resulted in a drop in 30-day readmission rates to 15%. A multidisciplinary team visited nursing facilities in the area, reviewed readmission rates and Nursing Home Compare information and chose five facilities that are in locations convenient to Montefiore patients. Montefiore representatives met with each facility individually and helped them adapt the INTERACT program (Interventions to Reduce Acute Care Transfers), a quality improvement program designed to improve care and reduce potentially avoidable readmissions. Now representatives from all five nursing facilities meet with the Montefiore team monthly and collaborate on ways to improve transitions. PMID:25330705



NCSA Tests WebEx Collaboration Tool  

NSDL National Science Digital Library

This newsbrief, from Primeur Monthly, describes WebEx, a new service that is currently being tested by the National Center for Supercomputing Applications (NCSA) at the University of Illinois at Urbana-Champaign (UIUC). WebEx is designed to allow scientists "to work collaboratively over the Web, . . . share applications, present demonstrations and training, and provide desktop support using only a desktop computer and a Web browser." Although still in the testing phase, this type of service may be of interest to scientists who rely on technology to facilitate ex-situ collaborations.


Schrödinger equation revisited  

PubMed Central

The time-dependent Schrödinger equation is a cornerstone of quantum physics and governs all phenomena of the microscopic world. However, despite its importance, its origin is still not widely appreciated and properly understood. We obtain the Schrödinger equation from a mathematical identity by a slight generalization of the formulation of classical statistical mechanics based on the Hamilton–Jacobi equation. This approach brings out most clearly the fact that the linearity of quantum mechanics is intimately connected to the strong coupling between the amplitude and phase of a quantum wave. PMID:23509260

Schleich, Wolfgang P.; Greenberger, Daniel M.; Kobe, Donald H.; Scully, Marlan O.



Schrödinger equation revisited.  


The time-dependent Schrödinger equation is a cornerstone of quantum physics and governs all phenomena of the microscopic world. However, despite its importance, its origin is still not widely appreciated and properly understood. We obtain the Schrödinger equation from a mathematical identity by a slight generalization of the formulation of classical statistical mechanics based on the Hamilton-Jacobi equation. This approach brings out most clearly the fact that the linearity of quantum mechanics is intimately connected to the strong coupling between the amplitude and phase of a quantum wave. PMID:23509260

Schleich, Wolfgang P; Greenberger, Daniel M; Kobe, Donald H; Scully, Marlan O



Forms of Linear Equations  

NSDL National Science Digital Library

The lesson summarizes four forms of equations with which students should be familiar. These include: direct variation, slope-intercept form, standard form, and point-slope form. Students will learn the benefits and uses of each. Prerequisite knowledge: Students must understand that linear equations have other equivalent forms that may be determined just by rearranging the equation using properties of equality. They must also know how to graph points on a coordinate plane and determine the slope of a line. Prior knowledge of intercepts is also recommended.



Nonlinear ordinary difference equations  

NASA Technical Reports Server (NTRS)

Future space vehicles will be relatively large and flexible, and active control will be necessary to maintain geometrical configuration. While the stresses and strains in these space vehicles are not expected to be excessively large, their cumulative effects will cause significant geometrical nonlinearities to appear in the equations of motion, in addition to the nonlinearities caused by material properties. Since the only effective tool for the analysis of such large complex structures is the digital computer, it will be necessary to gain a better understanding of the nonlinear ordinary difference equations which result from the time discretization of the semidiscrete equations of motion for such structures.

Caughey, T. K.



Smoothed integral equations  

Microsoft Academic Search

For a linear integral equation x(t)=a(t)??0tB(t,s)x(s)ds there is a resolvent equation R(t,s)=B(t,s)??stB(t,u)R(u,s)du and a variation of parameters formula x(t)=a(t)??0tR(t,s)a(s)ds. It is assumed that B is a perturbed convex function and that a(t) may be badly behaved in several ways. When the first two equations are treated separately by means of a Liapunov functional, restrictive conditions are required separately on a(t)

T. A. Burton; D. P. Dwiggins



2 Step Equation  

NSDL National Science Digital Library

Now that you know how to solve simple Algebra equations, we\\'re going to make it a little more challenging! These equations have two or more steps to solving them. Grab your worksheet and ready, set, go! Let\\'s start by doing a virtual hands-on activity. The object here is to add things to each side of the scale to make it balance, and then perform operations to reduce the equation until the variable is alone. After entering the site, place the appropriate objects on each ...

Mr. Elmer



The Effect of Sociostructural and Collaborative Decision-Making on Diabetes Self-Management  

PubMed Central

Background Diabetic self-management is important for controlling the diabetes complications and promoting health-related quality of life in these patients. The objective of this study was to examine a hypothetical model regarding influences of sociostructural determinants, collaborative decision-making and patient’s beliefs system on diabetes self-management. Methods: In a cross-sectional descriptive study from Dec 2010 to Mar 2010, 500 patients of Iranian adult patients with type II diabetes attended the outpatient diabetic clinics of the Shariati Hospital in Tehran were selected by convenience sampling. Data were collected by The Demographical Information, Social- Economical Status and Diabetic History Questionnaire and eleven self-reported scales of this research. Structural equation modeling (SEM) with LIZREL software applied for data analysis. Results: The modified model had a desirable fitness to the observed data. Patient’s beliefs system directly influenced the diabetes self-management. Sociostructural determinants influenced diabetes self-management indirectly via collaborative decision-making and Patient’s beliefs system. In addition, collaborative decision-making significantly influenced patient’s beliefs system that thereby impacted diabetes self-management. Conclusions: Sociostructural determinants, collaborative decision-making and patient’s beliefs system are integrated and cooperatively affect on diabetes self-management. Comprehensive intervention schedules required to improve these agents for encouragement the type II diabetes self-management. PMID:23641405




Method of characteristics and solution of DGLAP evolution equation in leading order at small-x  

E-print Network

In this paper the singlet and non-singlet hadron structure functions have been obtained by solving Dokshitzer-Gribov-Lipatov-Alterelli-Parisi (DGLAP) evolution equations in leading order (LO) at the small-x limit. Here we have used a Taylor Series expansion and then the method of characteristics to solve the evolution equation. We have also calculated t and x-evolutions of deuteron structure function and the results are compared with the New Muon Collaboration (NMC) data.

R Baishya; R Rajkhowa; J K Sarma



Equations For Rotary Transformers  

NASA Technical Reports Server (NTRS)

Equations derived for input impedance, input power, and ratio of secondary current to primary current of rotary transformer. Used for quick analysis of transformer designs. Circuit model commonly used in textbooks on theory of ac circuits.

Salomon, Phil M.; Wiktor, Peter J.; Marchetto, Carl A.



Master equation - tutorial approach  

E-print Network

We do not present any original or new material. This is a tutorial addressed to students who need to study the microscopic derivation of the quantum-mechanical master equation encountered in many practical physical situations.

Stanislaw Kryszewski; Justyna Czechowska-Kryszk



Linear Equations Game  

NSDL National Science Digital Library

Students groups act as aerospace engineering teams competing to create linear equations to guide space shuttles safely through obstacles generated by a modeling game in level-based rounds. Each round provides a different configuration of the obstacle, which consists of two "gates." The obstacles are presented as asteroids or comets, and the linear equations as inputs into autopilot on board the shuttle. The winning group is the one that first generates the successful equations for all levels. The game is created via the programming software MATLAB, available as a free 30-day trial. The activity helps students make the connection between graphs and the real world. In this activity, they can see the path of a space shuttle modeled by a linear equation, as if they were looking from above.

AMPS GK-12 Program,


Mathematica Tutor: Differential Equations  

NSDL National Science Digital Library

Created for the Connected Curriculum Project, the purpose of this module is to learn the basics of Mathematica for use with the differential equations modules. This is one lesson within a larger set of learning modules hosted by Duke University.

Holden, Joshua


Boston Workplace Education Collaborative. Final External Evaluation.  

ERIC Educational Resources Information Center

An evaluation of the Boston Workplace Education Collaborative (BWEC) was conducted during 1989. The BWEC is a partnership among Roxbury Community College, the Boston Private Industry Council, and the American Federation of Labor-Congress of Industrial Organizations (AFL-CIO) of Massachusetts to provide workplace literacy educational opportunities…

Levine, Mark L.; Pansar, Eleanor


Developing Principal Instructional Leadership through Collaborative Networking  

ERIC Educational Resources Information Center

This study examines what occurs when principals of urban schools meet together to learn and improve their instructional leadership in collaborative principal networks designed to support, sustain, and provide ongoing principal capacity building. Principal leadership is considered second only to teaching in its ability to improve schools, yet few…

Cone, Mariah Bahar



Collaborative Learning in Technological Project Design  

ERIC Educational Resources Information Center

The POWERTECH contest in Taiwan was established in an attempt to promote inventiveness and technology to elementary school pupils. The POWERTECH contest is designed as a collaborative learning system for project design. Project design is comprised of technical processes, which include the construction of an artifact and improvement of its…

Hong, Jon-Chao; Yu, Kuang-Chao; Chen, Mei-Yung



Dearborn Forms Elementary Arabic Language Program Collaboration  

ERIC Educational Resources Information Center

The Dearborn Public Schools, with 18,300 students, is located in the Detroit urban area with the largest concentration of Arabic-speaking people in the United States. In order to prepare the students for the 21st century skills and global awareness and in response to parents' requests, the author in collaboration with the school principal and…

Tabrizi, Shereen



A Collaborative Educational Association Rule Mining Tool  

ERIC Educational Resources Information Center

This paper describes a collaborative educational data mining tool based on association rule mining for the ongoing improvement of e-learning courses and allowing teachers with similar course profiles to share and score the discovered information. The mining tool is oriented to be used by non-expert instructors in data mining so its internal…

Garcia, Enrique; Romero, Cristobal; Ventura, Sebastian; de Castro, Carlos



Collaborative Data Mining Tool for Education  

ERIC Educational Resources Information Center

This paper describes a collaborative educational data mining tool based on association rule mining for the continuous improvement of e-learning courses allowing teachers with similar course's profile sharing and scoring the discovered information. This mining tool is oriented to be used by instructors non experts in data mining such that, its…

Garcia, Enrique; Romero, Cristobal; Ventura, Sebastian; Gea, Miguel; de Castro, Carlos



A Collaborative Approach to Leadership in Supervision.  

ERIC Educational Resources Information Center

This project demonstrates a collaborative process designed to address the continuing preparation of principals who have primary responsibility for supervising and evaluating teachers, and the preparation of cooperating teachers as more effective supervisors of student teachers. The project focuses on one major question: What is the role of…

Ham, Maryellen C.; Oja, Sharon Nodie


OGC Collaborative Platform AGU Fall Meeting 2012  

E-print Network

Incubator · Global, innovative, collaborative, hands-on engineering and testing program to draft and test for the Specification Development Process ­ product implementations that use these candidate standards ­ demonstrated feedback and public change requests · Public site ­ Standards search and download ­ Organizati

Wright, Dawn Jeannine


Ethical Issues in Collaborative Action Research  

ERIC Educational Resources Information Center

This article begins by raising issues around the way in which ethical approval for research is managed in university settings, where committees often base their assumptions on a principlist approach making a number of assumptions that we consider to be contestable, such as a neat separation between researcher and researched. However, collaborative

Locke, Terry; Alcorn, Noeline; O'Neill, John



Faculty of MEDICINE A dynamic, collaborative  

E-print Network

Faculty of MEDICINE RESEARCH A dynamic, collaborative environment that attracts top scientists the frontiers of knowledge. More than $6 million has been invested in research infrastructure since 1999 approach to building its research programs. Dalhousie Medical School has chosen to focus on five areas

Brownstone, Rob


Spy Works: A Collaborative Creative Writing Model.  

ERIC Educational Resources Information Center

Students in a creative writing class at McLean High School (Virginia) were asked to write an original piece of spy fiction. A four-way collaboration model, which utilized the strengths and expertise of a teacher, library media specialist, business partner (the technology division of the CIA), and vendor, provided students with unusual learning…

Bruce, Charlotte



Embarking on Collaborative Research in Geographic Education  

ERIC Educational Resources Information Center

This paper provides insights into the complexities and rewards involved in conducting a collaborative research project in geographic education. Using a case study from the National Council for Geographic Education's ongoing EMBARC Project ("Encouraging our Members to Belong to a Research Community"), the authors document and analyse their ongoing…

Alexson, Randy Gabrys; Kemnitz, Christopher; Bell, Scott; Hardwick, Susan



Rural Collaboratives: A Review of the Research.  

ERIC Educational Resources Information Center

Alternative models of rural school improvement consortia were identified through a review of research literature in order to determine what existing models were applicable to rural school consortia in the northwest United States. Organization structure of rural school collaboratives and characteristics associated with successful functioning were…

Crohn, Leslie; Nelson, Steven R.


Enhancing School-University Collaboration through Technology.  

ERIC Educational Resources Information Center

Focuses on university-school relationships discussing the desirable characteristics that are needed for classroom teachers and teacher educators. Describes three partnerships between preservice and K-12 social studies classrooms, illustrating how the focus/scope of collaboration affects the outcomes. Addresses technology as a catalyst for…

Keiper, Timothy; Myhre, Oddmund; Pihl, Paul



The Brussels Metro: Accessibility through Collaboration  

ERIC Educational Resources Information Center

This article describes and analyzes the development of a navigation and orientation system for people with visual impairments as it evolved over three decades. It includes reflections on how users have been involved in the redesign process and illustrates how people with and without disabilities have collaborated to create a more suitable and…

Strickfaden, Megan; Devlieger, Patrick



Collaborative Research in Education: A Useful Approach.  

ERIC Educational Resources Information Center

Encourages classroom teachers to engage in collaborative research. Addresses role of theory in research design, ethical/legal aspects of data collection/treatment, ownership of data, and communication among team members. Describes one-to-one friendship, teacher team catalyst, and cruise ship research models. Discusses how to formulate research…

Shau, Kathryn



Collaborative Marketing: Library and Vendor Partnerships.  

ERIC Educational Resources Information Center

This paper describes the development of a Library Resource Center of promotional and marketing materials that is available in multiple languages on the ISI Web site. Collaboration between the ISI marketing staff in the United Kingdom, who built this electronic library, and librarians in other countries is discussed. U.S corporate marketing…

Trolley, Jacqueline H.; Sheppard, Ryan


Wiki Based Collaborative Learning in Interuniversity Scenarios  

ERIC Educational Resources Information Center

In business education advanced collaboration skills and media literacy are important for surviving in a globalized business where virtual communication between enterprises is part of the day-by-day business. To transform these global working situations into higher education, a learning scenario between two universities in Germany and Austria was…

Katzlinger, Elisabeth; Herzog, Michael A.



What's Wrong with Collaborative Digital Reference?  

ERIC Educational Resources Information Center

Questions the need for collaborative digital reference services among libraries. Discusses the lack of use among networks that have been developed, probably due to easy access to online resources; economic assumptions; setting standards for reference practice; automatic routing software; copyrights; and patron satisfaction. (LRW)

Coffman, Steve



Phenylketonuria in adulthood: A collaborative study  

Microsoft Academic Search

During 1967–1983, the Maternal and Child Health Division of the Public Health Services funded a collaborative study of 211 newborn infants identified on newborn screening as having phenylketonuria (PKU). Subsequently, financial support was provided by the National Institute of Child Health and Human Development (NICHD). The infants were treated with a phenylalanine (Phe)-restricted diet to age 6 years and then

R. Koch; B. Burton; G. Hoganson; R. Peterson; W. Rhead; B. Rouse; R. Scott; J. Wolff; A. M. Stern; F. Guttler; M. Nelson; F. de la Cruz; J. Coldwell; R. Erbe; M. T. Geraghty; C. Shear; J. Thomas; C. Azen



Manufacturing in the world of Internet collaboration  

SciTech Connect

The Internet and the applications it supports are revolutionizing the way people work together. This paper presents four case studies in engineering collaboration that new Internet technologies have made possible. These cases include assembly design and analysis, simulation, intelligent machine system control, and systems integration. From these cases, general themes emerge that can guide the way people will work together in the coming decade.

McDonald, M.J.; Harrigan, R.W.



Collaborating at the ECB: A Reflection.  

ERIC Educational Resources Information Center

Overviews the 20-year history of the English Composition Board at the University of Michigan, an independent unit directed by a policy board until it was effectively ended by being placed under the English Department in 1997. Describes its early cooperative and later collaborative approach to management style. Argues efforts to institutionalize…

Quiroz, Sharon



Tele-Collaborative Projects:  

ERIC Educational Resources Information Center

Examines a collaborative language learning project that brought together elementary and middle school students in France, Canada, and a Basque school to communicate about monsters--a topic of concern to any child who has heard a fairy tale or watched a Disney movie. The Internet is used as the medium of interaction, allowing more students to…

LeLoup, Jean; Ponterio, Robert



Collaborative Lab Reports with Google Docs  

ERIC Educational Resources Information Center

Science is a collaborative endeavor. The solitary genius working on the next great scientific breakthrough is a myth not seen much today. Instead, most physicists have worked in a group at one point in their careers, whether as a graduate student, faculty member, staff scientist, or industrial researcher. As an experimental nuclear physicist with…

Wood, Michael



Collaborative Information Filtering in Cooperative Communities.  

ERIC Educational Resources Information Center

The purpose of this study was to develop an information filtering system which collects, classifies, selects, and stores various kinds of information found through the Internet. A collaborative form of information gathering was examined and a model was built and implemented in the Internet information space. (AEF)

Okamoto, T.; Miyahara, K.



Collaborative Wikipedia Projects in the Virtual Classroom  

ERIC Educational Resources Information Center

Wikipedia is a web-based, free-content encyclopedia that is openly editable and, thus, provides a unique platform for collaborations. Wikipedia projects are increasingly being integrated into upper-level courses across the country to explore advanced concepts, communicate science, and provide high-quality information to the public. Here we outline…

Kenny, A. J.; Wolt, J. D.; Hurd, H. S.



Collaborative Technologies: Crossing the Device Divide  

ERIC Educational Resources Information Center

When school district leaders talk about the potential benefits of "bring your own device" (BYOD) programs, they often mention budget savings and promoting personalized mobile learning. They note that BYOD can expand the boundaries of learning beyond the classroom, however, not many of these leaders mention enhanced student collaboration

Raths, David



Collaborative learning in the music studio  

Microsoft Academic Search

This article presents some of the findings from a mixed-methods case study that investigated collaborative learning for pairs of higher education students working in a music studio on a drum kit recording. A stratified purposive sampling technique was used and students were allocated a partner of similar ability; often referred to as a socio-conflict approach. The pairs of students were

Andrew King