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1

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.

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

2011-01-01

2

Performance of the Cockcroft-Gault, MDRD, and New CKD-EPI Formulas in Relation to GFR, Age, and Body Size  

PubMed Central

Background and objectives: We compared the estimations of Cockcroft-Gault, Modification of Diet in Renal Disease (MDRD), and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations to a gold standard GFR measurement using 125I-iothalamate, within strata of GFR, gender, age, body weight, and body mass index (BMI). Design, setting, participants, & measurements: For people who previously underwent a GFR measurement, bias, precision, and accuracies between measured and estimated kidney functions were calculated within strata of the variables. The relation between the absolute bias and the variables was tested with linear regression analysis. Results: Overall (n = 271, 44% male, mean measured GFR 72.6 ml/min per 1.73 m2 [SD 30.4 ml/min per 1.73 m2]), mean bias was smallest for MDRD (P < 0.01). CKD-EPI had highest accuracy (P < 0.01 compared with Cockcroft-Gault), which did not differ from MDRD (P = 0.14). The absolute bias of all formulas was related to age. For MDRD and CKD-EPI, absolute bias was also related to the GFR; for Cockcroft-Gault, it was related to body weight and BMI as well. In all extreme subgroups, MDRD and CKD-EPI provided highest accuracies. Conclusions: The absolute bias of all formulas is influenced by age; CKD-EPI and MDRD are also influenced by GFR. Cockcroft-Gault is additionally influenced by body weight and BMI. In general, CKD-EPI gives the best estimation of GFR, although its accuracy is close to that of the MDRD.

Grootendorst, Diana Carina; Verduijn, Marion; Elliott, Elise Grace; Dekker, Friedo Wilhelm; Krediet, Raymond Theodorus

2010-01-01

3

Comparing the association of GFR estimated by the CKD-EPI and MDRD study equations and mortality: the third national health and nutrition examination survey (NHANES III)  

PubMed Central

Background The Chronic Kidney Disease Epidemiology Collaboration equation for estimation of glomerular filtration rate (eGFRCKD-EPI) improves GFR estimation compared with the Modification of Diet in Renal Disease Study equation (eGFRMDRD) but its association with mortality in a nationally representative population sample in the US has not been studied. Methods We examined the association between eGFR and mortality among 16,010 participants of the Third National Health and Nutrition Examination Survey (NHANES III). Primary predictors were eGFRCKD-EPI and eGFRMDRD. Outcomes of interest were all-cause and cardiovascular disease (CVD) mortality. Improvement in risk categorization with eGFRCKD-EPI was evaluated using adjusted relative hazard (HR) and Net Reclassification Improvement (NRI). Results Overall, 26.9% of the population was reclassified to higher eGFR categories and 2.2% to lower eGFR categories by eGFRCKD-EPI, reducing the proportion of prevalent CKD classified as stage 3–5 from 45.6% to 28.8%. There were 3,620 deaths (1,540 from CVD) during 215,082 person-years of follow-up (median, 14.3?years). Among those with eGFRMDRD 30–59?ml/min/1.73?m2, 19.4% were reclassified to eGFRCKD-EPI 60–89?ml/min/1.73?m2 and these individuals had a lower risk of all-cause mortality (adjusted HR, 0.53; 95% CI, 0.34-0.84) and CVD mortality (adjusted HR, 0.51; 95% CI, 0.27-0.96) compared with those not reclassified. Among those with eGFRMDRD >60?ml/min/1.73?m2, 0.5% were reclassified to lower eGFRCKD-EPI and these individuals had a higher risk of all-cause (adjusted HR, 1.31; 95% CI, 1.01-1.69) and CVD (adjusted HR, 1.42; 95% CI, 1.01-1.99) mortality compared with those not reclassified. Risk prediction improved with eGFRCKD-EPI; NRI was 0.21 for all-cause mortality (p?

2012-01-01

4

Is the Chronic Kidney Disease Epidemiology Collaboration creatinine-cystatin C equation useful for glomerular filtration rate estimation in the elderly?  

PubMed Central

Background We aimed to evaluate the performance of the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) creatinine–cystatin C equation in a cohort of elderly Chinese participants. Materials and methods Glomerular filtration rate (GFR) was measured in 431 elderly Chinese participants by the technetium-99m diethylene-triamine-penta-acetic acid (99mTc-DTPA) renal dynamic imaging method, and was calibrated equally to the dual plasma sample 99mTc-DTPA-GFR. Performance of the CKD-EPI creatinine–cystatin C equation was compared with the Cockcroft–Gault equation, the re-expressed 4-variable Modification of Diet in Renal Disease (MDRD) equation, and the CKD-EPI creatinine equation. Results Although the bias of the CKD-EPI creatinine–cystatin C equation was greater than with the other equations (median difference, 5.7 mL/minute/1.73 m2 versus a range from 0.4–2.5 mL/minute/1.73 m2; P<0.001 for all), the precision was improved with the CKD-EPI creatinine–cystatin C equation (interquartile range for the difference, 19.5 mL/minute/1.73 m2 versus a range from 23.0–23.6 mL/minute/1.73 m2; P<0.001 for all comparisons), leading to slight improvement in accuracy (median absolute difference, 10.5 mL/minute/1.73 m2 versus 12.2 and 11.4 mL/minute/1.73 m2 for the Cockcroft–Gault equation and the re-expressed 4-variable MDRD equation, P=0.04 for both; 11.6 mL/minute/1.73 m2 for the CKD-EPI creatinine equation, P=0.11), as the optimal scores of performance (6.0 versus a range from 1.0–2.0 for the other equations). Higher GFR category and diabetes were independent factors that negatively correlated with the accuracy of the CKD-EPI creatinine–cystatin C equation (?=?0.184 and ?0.113, P<0.001 and P=0.02, respectively). Conclusion Compared with the creatinine-based equations, the CKD-EPI creatinine–cystatin C equation is more suitable for the elderly Chinese population. However, the cost-effectiveness of the CKD-EPI creatinine–cystatin C equation for clinical use should be considered.

Liu, Xun; Ma, Huijuan; Huang, Hui; Wang, Cheng; Tang, Hua; Li, Ming; Wang, Yanni; Lou, Tanqi

2013-01-01

5

Impact on cardiovascular risk follow-up from a shift to the CKD-EPI formula for eGFR reporting: a cross-sectional population-based primary care study  

PubMed Central

Objective To assess the impact on cardiovascular risk factor management in primary care by the introduction of chronic kidney disease epidemiological collaboration (CKD-EPI) for estimated-glomerular filtration rate (eGFR) reporting. Design and setting Cross-sectional study of routine healthcare provision in 47 primary care practices in The Netherlands with Modification of Diet and Renal Disease Study eGFR reporting. Methods eGFR values were recalculated using CKD-EPI in patients with available creatine tests. Patients reclassified from CKD stage 3a to CKD stage 2 eGFR range were compared to those who remained in stage 3a for differences in demographic variables, blood pressure, comorbidity, medication usage and laboratory results. Results Among the 60?673 adult patients (37% of adult population) with creatine values, applying the CKD-EPI equation resulted in a 16% net reduction in patients with CKD stage 3 or worse. Patients reclassified from stage 3a to 2 had lower systolic blood pressure (139.7 vs 143.3?mm?Hg p<0.0001), higher diastolic blood pressure (81.5 vs 78.4?mm?Hg p<0.0001) and higher cholesterol (5.4 vs 5.1?mmol/L p<0.0001) compared to those who remained in stage 3a. Of those reclassified out of a CKD diagnosis 463 (32%) had no comorbidities that would qualify for annual CVD risk factor assessment and 20 (12% of those with sufficient data) had a EuroSCORE CVD risk >20% within 10?years. Conclusions Use of the CKD-EPI equation will result in many patients being removed from CKD registers and the associated follow-up. Current risk factor assessment in this group may be lacking from routine data and some patients within this group are at an increased risk for cardiovascular events.

van Gelder, Vincent A; Scherpbier-de Haan, Nynke D; de Grauw, Wim J C; O'Callaghan, Christopher A; Wetzels, Jack F M; Lasserson, Daniel S

2013-01-01

6

Creatinine-or cystatin C-based equations to estimate glomerular filtration in the general population: impact on the epidemiology of chronic kidney disease  

PubMed Central

Background Chronic kidney disease (CKD) is a major issue in public health. Its prevalence has been calculated using estimation of glomerular filtration rate (GFR) by the creatinine-based equations developed in the Modified Diet in Renal Disease (MDRD) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) study. Recently, new equations based either on cystatin C (CKD-EPI Cys) or both cystatin and creatinine (CKD-EPI mix) have been proposed by the CKD-EPI consortium. The aim of this study was to measure the difference in the prevalence of stage 3 CKD, defined as an estimated GFR less than 60 mL/min/1.73 m2, in a population using these four equations. Methods CKD screening was performed in the Province of Liège, Belgium. On a voluntary basis, people aged over 50 years have been screened. GFR was estimated by the four equations. Stage 3 CKD was defined as a GFR less than 60 mL/min/1.73 m2. Results The population screened consisted of 4189 people (47% were men, mean age 63?±?7y). Their mean serum creatinine and plasma cystatin C levels were 0.88?±?0.21 mg/dL and 0.85?±?0.17 mg/L, respectively. The prevalence of CKD in this population using the MDRD, the CKD-EPI, the CKD-EPI Cys and the CKD-EPI mix equations was 13%, 9.8%, 4.7% and 5%, respectively. The prevalence of CKD was significantly higher with the creatinine-based (MDRD and the CKD-EPI) equations compared to the new cystatin C-based equations. Conclusions Prevalence of CKD varies strongly depending on the method used to estimate GFR. Such discrepancies are of importance and must be confirmed and explained by additional studies, notably by studies using GFR measured with a reference method. Trial registration B70720071509

2013-01-01

7

Estimation of glomerular filtration rate by MDRD equation in athletes: role of body surface area  

Microsoft Academic Search

Creatinine-based equations to estimate the glomerular filtration rate (GFR) have recently been advocated over serum creatinine\\u000a values as a valuable tool to more accurately assess kidney function. The Cockcroft–Gault (CG) equation requires a body weight\\u000a parameter, whereas the Chronic Kidney Disease-Epidemiology Collaboration (CKD-EPI) and Modification of Diet in Renal Disease\\u000a (MDRD) Study equations do not. In this study we evaluated

Radoje Milic; Alessandra Colombini; Giovanni Lombardi; Patrizia Lanteri; Giuseppe Banfi

8

The impact of different GFR estimating equations on the prevalence of CKD and risk groups in a Southeast Asian cohort using the new KDIGO guidelines  

PubMed Central

Background Recently, the Kidney Disease: Improving Global Outcomes (KDIGO) group recommended that patients with CKD should be assigned to stages and composite relative risk groups according to GFR (G) and proteinuria (A) criteria. Asians have among the highest rates of ESRD in the world, but establishing the prevalence and prognosis CKD is a problem for Asian populations since there is no consensus on the best GFR estimating (eGFR) equation. We studied the effects of the choice of new Asian and Caucasian eGFR equations on CKD prevalence, stage distribution, and risk categorization using the new KDIGO classification. Methods The prevalence of CKD and composite relative risk groups defined by eGFR from with Chronic Kidney Disease-Epidemiology Collaboration (CKD-EPI); standard (S) or Chinese(C) MDRD; Japanese CKD-EPI (J-EPI), Thai GFR (T-GFR) equations were compared in a Thai cohort (n = 5526) Results There was a 7 fold difference in CKD3-5 prevalence between J-EPI and the other Asian eGFR formulae. CKD3-5 prevalence with S-MDRD and CKD-EPI were 2 - 3 folds higher than T-GFR or C-MDRD. The concordance with CKD-EPI to diagnose CKD3-5 was over 90% for T-GFR or C-MDRD, but they only assigned the same CKD stage in 50% of the time. The choice of equation also caused large variations in each composite risk groups especially those with mildly increased risks. Different equations can lead to a reversal of male: female ratios. The variability of different equations is most apparent in older subjects. Stage G3aA1 increased with age and accounted for a large proportion of the differences in CKD3-5 between CKD-EPI, S-MDRD and C-MDRD. Conclusions CKD prevalence, sex ratios, and KDIGO composite risk groupings varied widely depending on the equation used. More studies are needed to define the best equation for Asian populations.

2012-01-01

9

Estimation of glomerular filtration rate by MDRD equation in athletes: role of body surface area.  

PubMed

Creatinine-based equations to estimate the glomerular filtration rate (GFR) have recently been advocated over serum creatinine values as a valuable tool to more accurately assess kidney function. The Cockcroft-Gault (CG) equation requires a body weight parameter, whereas the Chronic Kidney Disease-Epidemiology Collaboration (CKD-EPI) and Modification of Diet in Renal Disease (MDRD) Study equations do not. In this study we evaluated the effect of the calculated body surface area (BSA) on MDRD values in professional athletes characterized from different body mass index, gender, and sport discipline. Serum creatinine concentration was measured by Jaffe reaction in 17 male rugby players and 28 male and 26 female swimmers, before the start of training and throughout the competitive season. The values of estimated GFR (eGFR) calculated for creatinine determination by means of CG and CDK-EPI with respect to MDRD formula showed a significant difference in different groups of athletes. The statistical significance was confirmed for BSA-corrected MDRD-derived eGFR values in rugby players and in male swimmers, but not in female swimmers, who showed a BSA close to the "standard" value of 1.73 m(2) traditionally included in MDRD equation. The CG equation can overestimate the eGFR in healthy overweight subjects such as rugby players, whereas the MDRD formula systematically underestimates it. The differences between the two equations increase as a function of BMI, appearing highest in rugby players and lowest in female swimmers. Real BSA correction of the MDRD equation could help to avoid an overestimation of renal excretory function in subjects with increased BSA. PMID:21519889

Milic, Radoje; Colombini, Alessandra; Lombardi, Giovanni; Lanteri, Patrizia; Banfi, Giuseppe

2011-04-26

10

Collaborate!  

ERIC Educational Resources Information Center

|This article explores different approaches that facilitate online collaboration. The newest efforts in collaboration revolve around wikis. These websites allow visitors to add, remove, edit, and change content directly online. Another fairly affordable approach involves open source, a programming language that is, in many ways, collaborative

Villano, Matt

2007-01-01

11

The Cockcroft-Gault: A Better Predictor of Renal Function in an Overweight and Obese Diabetic Population  

Microsoft Academic Search

SummaryBackground: The performance of the Cockcroft-Gault (CG) equation, the Modification of Diet in Renal Disease (MDRD) formula, and the Chronic Kidney Disease Epidemiology Collaboration equation (CKD-EPI) was evaluated in body mass index (BMI) categories. Material and Methods: In this retrospective cohort study in diabetic patients, creatinine clearance was measured by collecting 24-hour urines. Renal function was estimated using the CG,

Iefke Drion; Hanneke Joosten; Liane Santing; Susan J. J. Logtenberg; Klaas H. Groenier; Aloysius G. Lieverse; Nanne Kleefstra; Henk J. G. Bilo

2011-01-01

12

Renal function assessment in patients with systemic lupus erythematosus.  

PubMed

Few studies have evaluated the glomerular filtration rate (GFR) in patients with systemic lupus erythematosus (SLE). Even though the National Kidney Foundation (NKF) suggests using the equations to estimate GFR, rheumatologists continue using creatinine clearance (CCl). The main objective of our study was the assessment of different equations to estimate GFR in patients with SLE: Simplified MDRD study equation (sMDRD), CCl, Cockcroft Gault (CG), CG calculated with ideal weight (CGi), Mayo Clinic Quadratic (MCQ), and Chronic Kidney Disease Epidemiology Collaboration Equation (CKD-EPI). CKD-EPI was considered as the reference standard, and it was compared with the other equations to evaluate bias, correlation (r), sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), percentage of measurement of GFR between 70-130% of GFR measured through CKD-EPI (P30) and to compute the ROC curves. Adequacy of the 24-h urine collection was evaluated. To classify patients into GFR < 60 ml/min/1.73 m(2), the best sensitivity and NVP were obtained with sMDRD: the best PPV and specificity with MCQ. P30 was 99.3% with sMDRD, 77.5% CCl, 91.7% CG, 96.7% CGi, and 77.2% with MCQ. The lowest bias was for sMDRD and the highest for CCl. Only 159 (52.6%) urine collections were considered adequate, and when these patients were re-evaluated, the statistical results improved for CCl. CGi was better in general than CG. CCl should not be considered as an adequate GFR estimation. Ideal weight is better than real weight to calculate GFR through CG in patients with SLE. PMID:21604063

Martínez-Martínez, Marco Ulises; Borjas-García, Jaime Antonio; Magaña-Aquino, Martín; Cuevas-Orta, Enrique; Llamazares-Azuara, Lilia; Abud-Mendoza, Carlos

2011-05-21

13

Early Diabetic Nephropathy: A complication of reduced insulin sensitivity in type 1 diabetes.  

PubMed

OBJECTIVE Diabetic nephropathy (DN) is a major cause of mortality in type 1 diabetes. Reduced insulin sensitivity is a well-documented component of type 1 diabetes. We hypothesized that baseline insulin sensitivity would predict development of DN over 6 years. RESEARCH DESIGN AND METHODS We assessed the relationship between insulin sensitivity at baseline and development of early phenotypes of DN-microalbuminuria (albumin-creatinine ratio [ACR] ?30?mg/g) and rapid renal function decline (glomerular filtration rate [GFR] loss >3 mL/min/1.73 m(2) per year)-with three Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations over 6 years. Subjects with diabetes (n = 449) and without diabetes (n = 565) in the Coronary Artery Calcification in Type 1 Diabetes study had an estimated insulin sensitivity index (ISI) at baseline and 6-year follow-up. RESULTS The ISI was lower in subjects with diabetes than in those without diabetes (P < 0.0001). A higher ISI at baseline predicted a lower odds of developing an ACR ?30 mg/g (odds ratio 0.65 [95% CI 0.49-0.85], P = 0.003) univariately and after adjusting for HbA1c (0.69 [0.51-0.93], P = 0.01). A higher ISI at baseline conferred protection from a rapid decline of GFR as assessed by CKD-EPI cystatin C (0.77 [0.64-0.92], P = 0.004) and remained significant after adjusting for HbA1c and age (0.80 [0.67-0.97], P = 0.02). We found no relation between ISI and rapid GFR decline estimated by CKD-EPI creatinine (P = 0.38) or CKD-EPI combined cystatin C and creatinine (P = 0.50). CONCLUSIONS Over 6 years, a higher ISI independently predicts a lower odds of developing microalbuminuria and rapid GFR decline as estimated with cystatin C, suggesting a relationship between insulin sensitivity and early phenotypes of DN. PMID:24026551

Bjornstad, Petter; Snell-Bergeon, Janet K; Rewers, Marian; Jalal, Diana; Chonchol, Michel B; Johnson, Richard J; Maahs, David M

2013-09-11

14

Collaboration on Collaboration.  

National Technical Information Service (NTIS)

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 collabo...

B. Cobleigh

2004-01-01

15

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.

1985-01-01

16

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

17

Race Adjustment for Estimating Glomerular Filtration Rate Is Not Always Necessary  

PubMed Central

Background Estimated glomerular filtration rate (eGFR) is very important in clinical practice, although it is not adequately tested in different populations. We aimed at establishing the best eGFR formulas for a Brazilian population with emphasis on the need for race correction. Methods We evaluated 202 individuals with chronic kidney disease (CKD) and 42 without previously known renal lesions that were additionally screened by urinalysis. Serum creatinine and plasma clearance of iohexol were measured in all cases. GFR was estimated by the Mayo Clinic, abbreviated Modification of Diet in Renal Disease (MDRD) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formulas, and creatinine clearance was estimated by the Cockcroft-Gault (CG) formula. Plasma clearance of iohexol was used as the gold standard for GFR determination and for the development of a Brazilian formula (BreGFR). Results Measured and estimated GFR were compared in 244 individuals, 57% female, with a mean age of 41 years (range 18–82). Estimates of intraclass correlation coefficients among the plasma clearance of iohexol and eGFR formulas were all significant (p < 0.001) and corresponded to the following scores: CG 0.730; obesity-adjusted CG 0.789; Mayo Clinic 0.804; MDRD 0.848; MDRD1 (without race adjustment) 0.846; CKD-EPI 0.869; CKD-EPI1 (without race adjustment) 0.876, and BreGFR 0.844. Conclusions All cited eGFR formulas showed a good correlation with the plasma clearance of iohexol in the healthy and diseased conditions. The formulas that best detected reduced eGFR were the BreGFR, CKD-EPI, and CKD-EPI1 formulas. Notably, the race correction included in the MDRD and CKD-EPI formulas was not necessary for this population, as it did not contribute to more accurate results.

Zanocco, Juliana A.; Nishida, Sonia K.; Passos, Michelle Tiveron; Pereira, Amelia Rodrigues; Silva, Marcelo S.; Pereira, Aparecido B.; Kirsztajn, Gianna Mastroianni

2012-01-01

18

TA Collaborations  

ERIC Educational Resources Information Center

|This paper highlights several current collaborative activities of the National Early Childhood Technical Assistance Center (NECTAC). There are many specific examples of TA (Technical Assistance) collaborations that take place on a regular basis; the seven examples presented here were selected to represent different types of collaboration. The…

Diefendorf, Martha

2010-01-01

19

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

2008-01-01

20

Collaborative Inquiry  

ERIC Educational Resources Information Center

|Teachers can make better use of data when they work together than when they do it alone. Creating the conditions for such collaboration is a tall order. This article describes the idea behind the collaborative inquiry approach. It also mentions several studies that indicate its effectiveness. Tips on how collaborative inquiry can be implemented…

David, Jane L.

2009-01-01

21

Teacher Collaboration  

NSDL National Science Digital Library

In this group of three 5-minute videos for teachers of grades 3 through 8, three co-teaching teams describe how they work within the same classroom, collaborating on math instruction. Each pair, one classroom teacher and one special educator, talk of the benefits that collaborative teaching can offer and share their experiences of teaching mathematics in an inclusion classroom.

2012-01-01

22

Collaborative Stage  

Cancer.gov

Required SEER Site-Specific Factors for Collaborative Stage - This tool highlights the site-specific factors (SSF) required for staging, obsolete SSF’s, clinically significant SSFs, as well as those not required.

23

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.

2013-01-01

24

Collaboration Tools  

Microsoft Academic Search

Students use technology in natural ways that allow them to do what they want: communicate with anyone they want, in the time and space that suits them best. Easily accessible and user-friendly, collaboration tools allow students to explore, share, engage, and connect with people and content in meaningful ways that help them learn. By relying on the familiar ways students

Cyprien Lomas; Michael Burke; Carie L. Page

2008-01-01

25

Collaboration Physics  

ERIC Educational Resources Information Center

|What happens when university curriculum developers are mixed with motivated elementary teachers? ? An awesome learning collaboration that benefits researchers, teachers, and students! That's what the authors discovered when they--university researchers involved in the Physics for Elementary Teachers (PET) project--teamed up with local elementary…

Harlow, Danielle; Otero, Valerie K.

2005-01-01

26

Collaborative Calculus.  

ERIC Educational Resources Information Center

The crisis confronting calculus and mathematics education generally results from a number of failed assumptions implicit in the dominant lecture-homework-exam methodology used in teaching mathematics. Positive resolution of this crisis can be found in adopting a noncompetitive, collaborative approach to mathematics education. (Author)

Kast, David

1993-01-01

27

Industry Collaboration  

Cancer.gov

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.

28

Timeline collaboration  

Microsoft Academic Search

This paper explores timelines as a web-based tool for collaboration between citizens and municipal caseworkers. The paper takes its outset in a case study of planning and control of parental leave; a process that may involve surprisingly many actors. As part of the case study, a web-based timeline, CaseLine, was designed. This design crosses the boundaries between leisure and work,

Morten Bohøj; Nikolaj Gandrup Borchorst; Niels Olof Bouvin; Susanne Bødker; Pär-Ola Zander

2010-01-01

29

Collaborative Testing  

PubMed Central

Purpose: With increased focus on student preparation for high-stakes licensure exams, there is more interest in alternate forms of content delivery and assessment. This interest has focused on factors within the learning environment that may impact student's course performance and program progress. In this project, the impact of the method of group determination (random assignment vs. student selection) on student performance in a neuroanatomy course within a collaborative testing environment is examined. Methods: The course performance of two cohorts (cohort one: randomized grouping = 80; cohort two: student-selected grouping = 82) were compared. All students completed weekly quizzes within collaborative groups, while completing unit exams individually. The mean sum of both the quiz scores and examination scores were compared. Results: While the two groups differed (Wilks' lambda = 0.211; F = 53.541; df = 10,143; p < .05), no pattern was evident among the assessments (ie, one group did not differ significantly on all quizzes or examinations). In overall quiz performance, the randomized groupings scored significantly higher than the student-selected groups (F = 112.252; df = 1152; p < .05) while no difference was noted relative to overall exam scores (F = 2.672; df = 1152; p > .05). Conclusions: While the collaborative testing paradigm has been shown to be a valuable learning tool, no differences are apparent in the course performance between students in randomly assigned groups compared to those in student-selected groups. The very nature of random groups may have encouraged students to be proficient in all of the material, whereas students who were allowed to choose their groups may have divided the material among themselves and not become individually proficient in all concepts.

Nafziger, Rita; Meseke, Jamie K.; Meseke, Christopher A.

2011-01-01

30

Collaboration. Beginnings Workshop.  

ERIC Educational Resources Information Center

|Presents four articles on collaboration for use in staff development in childcare settings: (1) "Facilitating Collaborations among Children" (Susan Stacey); (2) "One Size Doesn't Fit All in Collaborations with Parents" (Deborah E. Eaton); (3) "Supporting Collaboration among Teachers" (Kay Albrecht); and (4) "Building Collaborations between…

Stacey, Susan; Eaton, Deborah E.; Albrecht, Kay; Bergman, Roberta

2000-01-01

31

Collaboration rules.  

PubMed

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

32

Collaboration: The Next Steps  

ERIC Educational Resources Information Center

|School media specialists collaborate with many teachers every day. They are so good that sometimes they even collaborate without realizing it. Sometimes, however, a more formal type of collaboration is needed. Not only does formal collaboration give them a chance to shine as the instructional leader, it also allows them to collect data to show…

Bacon, Pamela S.

2008-01-01

33

Building a Collaborative Culture  

ERIC Educational Resources Information Center

Collaborative individuals look for openings to work with others. The beginning of collaboration is cooperation, a willingness to adapt, to be flexible, and to help others. Cooperation opens doors to the possibility of collaboration. This article discusses what collaboration is and how teacher-librarians can make it happen in their schools.

Coatney, Sharon

2005-01-01

34

Roles in Collaborative Activity  

Microsoft Academic Search

Cooperative activity involves collaboration and communica- tion. Through the stages of collaboration, agents may play different roles either for performing domain tasks, or for forming decisions concerning the collaborative activity itself. Collaboration and communication can be enhanced if dependencies between agents' intentions are captured. Role-specification is expected to be a vital factor towards this goal. This is evidenced by roles'

Ioannis Partsakoulakis; George A. Vouros

2002-01-01

35

Collaborative knowledge work environments  

Microsoft Academic Search

How can the physical design of the workplace enhance collaborations without compromising an individual's productivity? The body of research on the links between physical space and collaboration in knowledge work settings is reviewed. Collaboration is viewed as a system of behaviours that includes both social and solitary work. The social aspects of collaboration are discussed in terms of three dimensions:

Judith H. Heerwagen; Kevin Kampschroer; Kevin M. Powell; Vivian Loftness

2004-01-01

36

Is an estimated glomerular filtration rate better than creatinine to be incorporated into the end-stage liver disease score?  

PubMed Central

AIM: To incorporate estimated glomerular filtration rate (eGFR) into the model for end-stage liver disease (MELD) score to evaluate the predictive value. METHODS: From January 2004 to October 2008, the records of 4127 admitted cirrhotic patients were reviewed. Patients who survived and were followed up as outpatients were defined as survivors and their most recent available laboratory data were collected. Patients whose records indicated death at any time during the hospital stay were defined as non-survivors (in-hospital mortality). Patients with incomplete data or with cirrhosis due to a congenital abnormality such as primary biliary cirrhosis were excluded; thus, a total of 3857 patients were enrolled in the present study. The eGFR, which was calculated by using either the modification of diet in renal disease (MDRD) equation or the chronic kidney disease epidemiology collaboration (CKD-EPI) equation, was incorporated into the MELD score after adjustment with the original MELD equation by logistic regression analysis [bilirubin and international normalized ratio (INR) were set at 1.0 for values less than 1.0]. RESULTS: Patients defined as survivors were significantly younger, had a lower incidence of hepatoma, lower Child-Pugh and MELD scores, and better renal function. The underlying causes of cirrhosis were very different from those in Western countries. In Taiwan, most cirrhotic patients were associated with the hepatitis virus, especially hepatitis B. There were 16 parameters included in univariate logistic regression analysis to predict in-hospital mortality and those with significant predicting values were included in further multivariate analysis. Both 4-variable MDRD eGFR and 6-variable MDRD eGFR, rather than creatinine, were significant predictors of in-hospital mortality. Three new equations were constructed (MELD-MDRD-4, MELD-MDRD-6, MELD-CKD-EPI). As expected, original MELD score was a significant predictor of in-hospital mortality (odds ratio = 1.25, P < 0.001). MELD-MDRD-4 excluded serum creatinine, with the coefficients refit among the remaining 3 variables, i.e., total bilirubin, INR and 4-variable MDRD eGFR. This model represented an exacerbated outcome over MELD score, as suggested by a decrease in chi-square (2161.45 vs 2198.32) and an increase in -2 log (likelihood) (2810.77 vs 2773.90). MELD-MDRD-6 included 6-variable MDRD eGFR as one of the variables and showed an improvement over MELD score, as suggested by an increase in chi-square (2293.82 vs 2198.32) and a decrease in -2 log (likelihood) (2810.77 vs 2664.79). Finally, when serum creatinine was replaced by CKD-EPI eGFR, it showed a slight improvement compared to the original MELD score (chi-square: 2199.16, -2 log (likelihood): 2773.07). In the receiver-operating characteristic curve, the MELD-MDRD-6 score showed a marginal improvement in area under the curve (0.909 vs 0.902), sensitivity (0.854 vs 0.819) and specificity (0.818 vs 0.839) compared to the original MELD equation. In patients with a different eGFR, the MELD-MDRD-6 equation showed a better predictive value in patients with eGFR ? 90, 60-89, 30-59 and 15-29. CONCLUSION: Incorporating eGFR obtained by the 6-variable MDRD equation into the MELD score showed an equal predictive performance in in-hospital mortality compared to a creatinine-based MELD score.

Chen, Yu-Wei; Chang, Ching-Wei; Chang, Chen-Wang; Wang, Tsang-En; Wu, Chih-Jen; Chen, Han-Hsiang

2012-01-01

37

Collaboration patterns in computer supported collaborative designing  

Microsoft Academic Search

This study examined the intensity of collaboration in computer supported collaborative designing. It focused on how ten teams of university level students of textile teaching shared their designing process in a virtual learning environment. An authentic task involving clothing for premature babies was used. The study employed qualitative content analysis of students’ written notes and sketches posted to the database.

Henna Lahti; Pirita Seitamaa-Hakkarainen; Kai Hakkarainen

2004-01-01

38

Industry Collaboration — Model Agreements  

Cancer.gov

Skip to Content Home | Investigator Resources | Protocol Development | Initiatives/Programs/Collaborations | Links to More Resources | Funding Opportunities | About CTEP Home | Sitemap | Contact CTEP Search this site Industry Collaborations CTEP Home CTEP

39

Collaboration in Cargo Transportation  

Microsoft Academic Search

We discuss two forms of collaboration in cargo transportation: carrier alliances in sea and air cargo, and shipper collaborations\\u000a in trucking. After discussing the current industry settings that make such collaborations beneficial, we present a set of\\u000a questions that need to be answered in the collaborative setting. These questions deal with issues such as (i) what is the\\u000a maximum benefit

Richa Agarwal; Özlem Ergun; Lori Houghtalen; Okan Orsan Ozener

40

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.

1983-01-01

41

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.

1983-01-01

42

Collaboration in sustainability vision  

Microsoft Academic Search

This paper examines the collaborative underpinning of sustainability and suggests the adoption of collaboration as a basis for developing a Sustainable Lens. A framing reference of sustainable practice is used to provide direction to a consideration of the relationship between sustainability and collaboration. This is then used to prompt a discussion of research implications.

Samuel Mann; Lesley Smith

2011-01-01

43

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

2003-01-01

44

MMI: Increasing Community Collaboration  

Microsoft Academic Search

Building community requires a collaborative environment and guidance to help move members towards a common goal. An effective environment for community collaboration is a workspace that fosters participation and cooperation; effective guidance furthers common understanding and promotes best practices. The Marine Metadata Interoperability (MMI) project has developed a community web site to provide a collaborative environment for scientists, technologists, and

N. R. Galbraith; K. Stocks; C. Neiswender; A. Maffei; L. Bermudez

2007-01-01

45

Collaborative research: Accomplishments & potential  

PubMed Central

Although a substantial part of scientific research is collaborative and increasing globalization will probably lead to its increase, very few studies actually investigate the advantages, disadvantages, experiences and lessons learned from collaboration. In environmental epidemiology interdisciplinary collaboration is essential and the contrasting geographical patterns in exposure and disease make multi-location projects essential. This paper is based on a presentation given at the Annual Conference of the International Society for Environmental Epidemiology, Paris 2006, and is attempting to initiate a discussion on a framework for studying collaborative research. A review of the relevant literature showed that indeed collaborative research is rising, in some countries with impressive rates. However, there are substantial differences between countries in their outlook, need and respect for collaboration. In many situations collaborative publications receive more citations than those based on national authorship. The European Union is the most important host of collaborative research, mainly driven by the European Commission through the Framework Programmes. A critical assessment of the tools and trends of collaborative networks under FP6, showed that there was a need for a critical revision, which led to changes in FP7. In conclusion, it is useful to study the characteristics of collaborative research and set targets for the future. The added value for science and for the researchers involved may be assessed. The motivation for collaboration could be increased in the more developed countries. Particular ways to increase the efficiency and interaction in interdisciplinary and intercultural collaboration may be developed. We can work towards "the principles of collaborative research" in Environmental Epidemiology.

Katsouyanni, Klea

2008-01-01

46

Supporting collaboration in notecards  

Microsoft Academic Search

This paper describes a project underway to investigate computer support for collaboration. In particular, we focus on experience with and extensions to NoteCards, a hypertext-based idea structuring system. The forms of collaboration discussed include draft-passing, simultaneous sharing and online presentations. The requirement that mutual intelligibility be maintained between collaborators leads to the need for support of annotative and procedural as

Randall H. Trigg; Lucy A. Suchman; Frank G. Halasz

1986-01-01

47

Experiences of collaborative research.  

PubMed

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, with the economist Richard Thaler, played a role in the development of behavioral economics. Procedures to make controversies more productive and constructive are suggested. PMID:14584989

Kahneman, Daniel

2003-09-01

48

Some Aspects of Mathematical Model of Collaborative Learning  

ERIC Educational Resources Information Center

|There are some mathematical learning models of collaborative learning, with which we can learn how students obtain knowledge and we expect to design effective education. We put together those models and classify into three categories; model by differential equations, so-called Ising spin and a stochastic process equation. Some of the models do…

Nakamura, Yasuyuki; Yasutake, Koichi; Yamakawa, Osamu

2012-01-01

49

Commentary: Community Collaborations  

NSDL National Science Digital Library

The National Science Education Standards offer the first assurance that community collaborations can be meaningful as they describe science instruction that educates students to "engage intelligently in public discourse and debate about matters of scientific and technological concern" (NRC 1996, p. 13). Community collaborations, if facilitated in a manner consistent with the Standards, can allow students to learn from and along with the community. The coeditor for this Community Collaborations issue of The Science Teacher (TST) hopes that as teachers read this issue of TST they will see the potential for engaging their own students in such collaborations in the coming year and look to share those experiences in next year's issue.

Campbell, Todd

2007-04-01

50

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

2006-01-01

51

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

2010-01-01

52

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.

1998-01-01

53

Collaborative Process Evaluation  

Microsoft Academic Search

Process evaluations provide multiple opportunities to improve prevention and intervention programs that benefit communities experiencing oppression and marginalization. In order to thwart the negative effects of power and privilege, it is essential that collaborative partnerships with community-based organizations (CBOs) incorporate the voices, experiences, and skills of community members. This article presents a process evaluation that was collaboratively developed and implemented

Gary W. Harper; Richard Contreras; Audrey Bangi; Ana Pedraza

2003-01-01

54

Negotiating Collaboration across Differences  

ERIC Educational Resources Information Center

|Through auto-ethnographic approach, this article extends contemporary debates on the need to further conceptualize and practice collaborative approaches to research. By exploring the complex dimensions of collaboration, this discussion traces the challenges of researching communities one affiliates with, particularly in relation to ethnic,…

Subedi, Binaya; Rhee, Jeong-eun

2008-01-01

55

Collaborative Filtering Recommender Systems  

Microsoft Academic Search

One of the potent personalization technologies powering the adap- tive web is collaborative filtering. Collaborative filtering (CF) is the process of filtering or evaluating items through the opinions of other people. CF technol- ogy brings together the opinions of large interconnected communities on the web, supporting filtering of substantial quantities of data. In this chapter we in- troduce the core

J. Ben Schafer; Dan Frankowski; Jonathan L. Herlocker; Shilad Sen

2007-01-01

56

Proficiency and Collaborative Learning  

ERIC Educational Resources Information Center

|This study reports on the effect of different levels of proficiency on the students' achievements in collaborative learning instruction among 30 Persian-speaking EFL college students. Having been divided into dyads with different levels of proficiency, these subjects participated in nine sessions of collaborative instruction based on the…

Shokouhi, Hossein; Alishaei, Zahra

2009-01-01

57

Collaborative computing: collaboration first, computing second  

Microsoft Academic Search

These articles on Collaborative Computing will seem out of place to a number of readers from the computer science community. Interesting articles perhaps, but what do they have to do with computers? Where is the science—that is, where is the mathematics, or the code? What have these issues to do with everyday practice?

Donald A. Norman

1991-01-01

58

Change and Collaboration: The Urban Collaborative.  

ERIC Educational Resources Information Center

|Discusses reasons for success of a collaborative effort involving the University of Massachusetts Boston and area community colleges, which has resulted in improved application and admissions processes, a more efficient student transfer process among institutions, improved graduation rates, greater commonality and articulation of curricula across…

Penney, Sherry H.

2001-01-01

59

Putting the collaborator back into collaborative filtering  

Microsoft Academic Search

Most of the published approaches to collaborative filtering and recommender systems concentrate on mathematical approaches for identifying user \\/ item preferences. This paper demonstrates that by considering the psychological decision making processes that are being undertaken by the users of the system it is possible to achieve a significant improvement in results. This approach is applied to the Netflix dataset

Gavin Potter

2008-01-01

60

Collaborative Intensity in Social Networks  

Microsoft Academic Search

Research on collaboration in social networks is largely restricted by a lack of longitudinal data. Approximations of collaborative intensity necessarily rely on the width of collaboration such as the number of papers coauthered by two scientists. In contrast, we discuss precise measures of collaborative intensity with respect to not only the width but also the depth of collaboration. Based on

Klaus Stein; Steffen Blaschke

2009-01-01

61

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

Caplan-Auerbach, Jacqueline

62

Haptoglobin genotype and the rate of renal function decline in the diabetes control and complications trial/epidemiology of diabetes interventions and complications study.  

PubMed

Many patients with type 1 diabetes develop renal disease despite moderately good metabolic control, suggesting other risk factors may play a role. Recent evidence suggests that the haptoglobin (HP) 2-2 genotype, which codes for a protein with reduced antioxidant activity, may predict renal function decline in type 1 diabetes. We examined this hypothesis in 1,303 Caucasian participants in the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study. HP genotype was determined by polyacrylamide gel electrophoresis. Glomerular filtration rate was estimated by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation and albumin excretion based on timed urine samples. Participants were followed up for a mean of 22 years. HP genotype was significantly associated with the development of sustained estimated glomerular filtration rate (GFR) <60 mL/min/1.73 m(2) and with end-stage renal disease (ESRD), with HP 2-2 having greater risk than HP 2-1 and 1-1. No association was seen with albuminuria. Although there was no treatment group interaction, the associations were only significant in the conventional treatment group, where events rates were much higher. We conclude that the HP genotype is significantly associated with the development of reduced GFR and ESRD in the DCCT/EDIC study. PMID:23761102

Orchard, Trevor J; Sun, Wanjie; Cleary, Patricia A; Genuth, Saul M; Lachin, John M; McGee, Paula; Paterson, Andrew D; Raskin, Philip; Anbinder, Yefim; Levy, Andrew P

2013-06-12

63

Prevalence of diminished kidney function in a representative sample of middle and older age adults in the Irish population  

PubMed Central

Background The prevalence of chronic kidney disease (CKD) using available estimating equations with the Republic of Ireland is unknown. Methods A randomly selected population based cross-sectional study of 1,098 adults aged 45 years and older was conducted using data from the 2007 Survey of Lifestyle, Attitudes and Nutrition (SLÁN). Estimated Glomerular Filtration Rate (eGFR) was calculated from a single IDMS aligned serum creatinine using the CKD-EPI and the MDRD equations, and albumin to creatinine ratio was based on a single random urine sample. Results The sample clinical characteristics and demography was similar to middle and older age adults in the general Irish population, though with an underrepresentation of subjects >75 years and of males. All results are based on subjects with available blood and urine samples. Applying weighting to obtain survey based population estimates, using Irish population census data, the estimated weighted prevalence of CKD-EPI eGFR<60 mL/min/1.73m2 was 11.6%, (95% confidence interval; 9.0, 14.2%), 12.0% ( 9.0, 14.2%) of men and 11.2% (7.3, 15.2%) of women. Unweighted prevalence estimates were similar at 11.8% (9.9, 13.8%). Albuminuria increased with lower CKD-EPI eGFR category. 10.1% of all subjects had albuminuria and an eGFR?60 mL/min/1.73 m2 giving an overall weighted estimated prevalence of National Kidney Foundation (NKF) defined CKD 21.3% (18.0, 24.6%), with the unadjusted estimate of 21.9% (19.5, 24.4%). MDRD related estimates for eGFR <60 mL/min/1.73 m2, and NFK defined CKD were higher than CKD-EPI and differences were greater in younger and female subjects. Conclusions CKD is highly prevalent in middle and older aged adults within the Republic of Ireland. In this population, there is poor agreement between CKD-EPI and MDRD equations especially at higher GFRs. CKD is associated with lower educational status and poor self rated health.

2012-01-01

64

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)

2007-04-07

65

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)

2007-04-07

66

NCI's Role in International Collaboration  

Cancer.gov

NCI's Role in International Collaboration NCI Programs and Offices NCI Meetings and Workshops International Collaboration in Clinical Trials Collaborate with U.S.-Based Research Groups Get Answers to Common Questions About...

67

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.

Wallace, Tyler

2011-08-17

68

Comprehensive multiplatform collaboration  

NASA Astrophysics Data System (ADS)

We describe the architecture and implementation of our comprehensive multi-platform collaboration framework known as Columbia InterNet Extensible Multimedia Architecture (CINEMA). It provides a distributed architecture for collaboration using synchronous communications like multimedia conferencing, instant messaging, shared web-browsing, and asynchronous communications like discussion forums, shared files, voice and video mails. It allows seamless integration with various communication means like telephones, IP phones, web and electronic mail. In addition, it provides value-added services such as call handling based on location information and presence status. The paper discusses the media services needed for collaborative environment, the components provided by CINEMA and the interaction among those components.

Singh, Kundan; Wu, Xiaotao; Lennox, Jonathan; Schulzrinne, Henning G.

2003-12-01

69

Penetration equations  

SciTech Connect

In 1967, Sandia National Laboratories published empirical equations to predict penetration into natural earth materials and concrete. Since that time there have been several small changes to the basic equations, and several more additions to the overall technique for predicting penetration into soil, rock, concrete, ice, and frozen soil. The most recent update to the equations was published in 1988, and since that time there have been changes in the equations to better match the expanding data base, especially in concrete penetration. This is a standalone report documenting the latest version of the Young/Sandia penetration equations and related analytical techniques to predict penetration into natural earth materials and concrete. 11 refs., 6 tabs.

Young, C.W. [Applied Research Associates, Inc., Albuquerque, NM (United States)

1997-10-01

70

Our Experience as Collaborative Ethnographers.  

ERIC Educational Resources Information Center

|Provides a transcript of a dialogue between two researchers concerning their experiences as collaborative ethnographers. Describes some of the positive and negative benefits of collaborative work. (HB)|

Bosley, Deborah S.; Morgan, Meg

1994-01-01

71

Applied Research - International Collaborative Activities  

Cancer.gov

Skip to Content Cancer Control and Population Sciences Home Applied Research Home International Collaborative Activities: International Collaborative Activities Home International Consortia & Conferences Funded Research with International Components International

72

Product Roadmapping in Collaboration.  

National Technical Information Service (NTIS)

Product roadmapping has not been widely examined, and particularly an intercompany collaboration perspective to product roadmapping is a fresh field of research. Therefore, the aim of this thesis is to research factors related to the product roadmapping p...

T. Kynkaanniemi

2007-01-01

73

Providers' perspectives on collaboration  

PubMed Central

Objective Changes in models of health care are required to better meet the needs of diverse, underserved patient populations. Collaboration among providers is one way to promote accessible, comprehensive and continuous care in healthcare organizations. This paper describes the quantitative findings from two time points that examined providers’ views of collaboration among a sample of diverse personnel (e.g. clinical nurses, social workers, dental providers, mental health providers, clerical staff, medical assistants, public health staff, and administrators) within a federally qualified nurse managed health care centre in the United States. Methods The quantitative arm of a mixed-method study is presented in this paper. Two instruments, the Collaboration and Satisfaction About Care Decisions Scale and the University of the West of England Interprofessional Questionnaire (comprised of 4 subscales–Communication and Teamwork Scale, Interprofessional Learning Scale, Interprofessional Interaction Scale, and Interprofessional Relationships Scale) were administered to providers at baseline and three to eight months following six same discipline focus group discussions on collaboration, in order to evaluate whether participating in the focus group discussions changed providers’ views of collaboration. A summary of the focus group data which were published elsewhere is additionally summarized to help provide insight to the quantitative findings. Thirty-nine staff participated. Results Paired t-tests revealed that only one scale out of the five, Collaboration and Satisfaction About Care Decisions Scale (33.97 at time one and 37.45 at time two), significantly and positively changed after the focus group discussion (p=0.046). Providers’ views on collaboration ranged from positive to moderate views of collaboration; most measures revealed a non-significant improvement after the focus group discussions. Staff with some graduate school reported the greatest satisfaction with decisions for the patient, and those with high school reported the lowest satisfaction with decisions for the patient. Respondents with a graduate degree had the most positive views of interprofessional relationships, whilst those with either a high school degree or bachelor’s degree had the most negative views of interprofessional relationships. ANOVAs by professional role revealed the least positive views of collaboration for provider groups with lower levels of education, with upper administration reporting the most positive views on collaboration. Conclusion Although the discussion generated by the focus groups was expected to facilitate communication, and research has suggested that communication between providers facilitates collaboration, only one subscale evaluating providers’ views of collaboration positively and significantly changed after the focus group discussion. The wide range of views on collaboration suggests there are diverse perspectives on collaboration among the staff based on professional roles and levels of education, with upper administration and those with higher levels of education reporting the most positive views of collaboration and staff with lower levels of education reporting more negative views of collaboration. A major limitation of this study was a low time two return among support staff, comprised of primarily African American women. Due to their marginalized professional and racial status, future research needs to explore the perspectives of this important and often overlooked group of staff.

Bruner, Patricia; Waite, Roberta; Davey, Maureen P

2011-01-01

74

Conceptualizing Virtual Collaborative Work  

Microsoft Academic Search

The purpose of this paper is to define the phenomena associated with virtual collaborative work from both a cognitive and\\u000a social cognitive perspective. The authors put forth an approach that assumes all people are natural sense-makers, sense-givers\\u000a and organizers. The authors posit that the collaborative work we observe within both informal (ad hoc teams or communities)\\u000a and formal (organizational) environments

Michael A. D'eredita; Michael Sanford Nilan

2007-01-01

75

The Rome Paris collaboration  

NASA Astrophysics Data System (ADS)

Since the first "Twinning CEE Project" between the Group of Francesco Mechiorri and our Laboratory at Observatoire de Paris and Ecole Normale Supérieure, and then through several European Networks and NASA Collaborations on the Cosmic Microwave Background, a long-term and fruitful cooperation has existed between Rome and Paris. This contribution will focus on the human story, the principal results and the possible prospects of this wonderful collaboration.

Signore, M.

2007-03-01

76

Collaborative strategies for survival.  

PubMed

Pathology and laboratory medicine face major challenges, including multiplying government regulations, increasing competition, decreasing reimbursement, and loss of directorial control. Other industries facing similar threats have found solutions in a variety of collaborative strategies. Several examples of laboratory collaboration and a template for evaluation of potential joint operations are presented. Successful strategies will make it easier to handle meddlesome regulations, increase productivity and decrease costs, allow pathologists to retain control, and make the laboratory more profitable and competitive. PMID:8475922

Horowitz, R E

1993-04-01

77

Adding immersion to collaborative tools  

Microsoft Academic Search

While three dimensional collaborative environments have been used for industrial design or interactive games, workgroup collaboration has largely remained in the two-dimensional realm. In this paper, we examine the collaborative capabilities of the Collaborative Virtual Workspace, and how it is used. We then describe our effort to augment this system with an immersive display. By developing an immersive interface to

Edward Swing

2000-01-01

78

Culture-aware collaborative learning  

Microsoft Academic Search

Purpose – In a collaborative learning environment there will be many learners with diverse cultures. These learners should be supported to communicate and collaborate among themselves. The variety of the communication and collaboration tools and modes available to each learner would depend on his\\/her personal cultural background. The purpose of this paper is to suggest the adaptation of the collaborative

Anastasios A. Economides

2008-01-01

79

Collaborative Processes in esupply Networks  

Microsoft Academic Search

This paper, which outlines research in progress, will attempt to provide an overview of collaborative relationships and processes within electronically-connected supply networks. These e-Supply Networks utilize the Internet to facilitate coordination and collaboration among multiple trading partners. We will look into the premises of interorganiza tional collaboration by delving into the new market landscape, trade exchanges and collaborative communities. Based

Chris Nøkkentved

80

The Cochrane Collaboration.  

PubMed

The Cochrane Collaboration is an international, not-for-profit organisation that aims to help people make well-informed decisions about health care by preparing, maintaining and promoting the accessibility of systematic reviews of the effects of health-care interventions. Cochrane systematic reviews are prepared according to predefined, explicit methodology, and published in The Cochrane Library. The abstracts and plain English summaries of the reviews are freely available on the Internet. All reviews are prepared and maintained under the editorial control of 50 Cochrane Collaborative Review Groups that focus on (groups of) health problems. The work of Collaborative Review Groups is supported, among others, by people working in Cochrane Fields. Cochrane Fields focus on dimensions of health care other than health problems. To date, the issue of nutrition has not been addressed sufficiently in The Cochrane Collaboration. Nutrition issues are very important for day-to-day health care and the initiatives to establish a new Cochrane Diet and Nutrition (Sub)Field will help to promote the preparation of systematic reviews of nutritional interventions by the variety of Collaborative Review Groups to whom such interventions are relevant. Many issues regarding nutritional interventions, however, are complex, and methodological challenges will have to be overcome. A Cochrane Diet and Nutrition (Sub)Field with experts on nutritional research can help fill this gap and make those reviews more possible. PMID:16052183

Scholten, R J P M; Clarke, M; Hetherington, J

2005-08-01

81

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.

1998-06-01

82

Collaborative Computational Intelligence in Economics  

Microsoft Academic Search

In this chapter, we review the use of the idea of collaborative computational intelligence in economics. We examine two kinds\\u000a of collaboration: first, the collaboration within the realm of computational intelligence, and, second, the collaboration\\u000a beyond the realm of it. These two forms of collaboration have had a significant impact upon the current state of economics.\\u000a First, they enhance and

Shu-Heng Chen

83

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

2002-05-16

84

Communication and collaboration technologies.  

PubMed

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

85

Evaluation of glomerular filtration rate and of albuminuria/proteinuria.  

PubMed

Kidney function should be evaluated by procedures including the calculation of glomerular filtration rate (GFR) estimates and the assessment of albuminuria or proteinuria as creatinine-normalized urinary ratios for albumin or total protein. GFR estimates are an approximation of true GFR, which circumvent the limitations of serum creatinine and creatinine clearance without increasing costs and time of diagnostic work-up. Estimates by Cockcroft-Gault equation tend to be higher than true GFR and estimates by other equations, because this equation predicts creatinine clearance, hence true GFR plus creatinine excretion via tubular secretion. The inclusion of a weight coefficient in the equation causes a GFR overestimation in the presence of large adiposity or edema. Estimates by equations of the Modification of Diet in Renal Disease (MDRD) study can be unreliable for high-normal GFR because that study did not enroll individuals without kidney disease. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) group has reported a new equation to overcome this limitation. GFR estimates can be biased by interassay creatinine differences or unusual levels of creatinine generation (muscle mass) or of renal tubular creatinine secretion. The urinary ratio of albumin (or total protein) to creatinine is measurable in untimed spot urine and reflects the urinary excretion rate of albumin (or total protein). Low muscle mass could imply borderline elevation in the ratio merely because of low urinary creatinine. Vice versa, high muscle mass could imply normal ratios even in the presence of high urinary albumin, because of high urinary creatinine due to high creatinine generation. PMID:20213606

Cirillo, Massimo

86

Convolution equations and nonlinear functional equations  

SciTech Connect

The survey is devoted to applications to nonlinear integral equations to linear convolution equations, their discrete analogues, and also the connection of these equations with problems of radiative transfer, in particular, with the Ambartsumyan equations.

Arabadzhyan, L.G.; Engibaryan, N.B.

1987-03-20

87

Can Colleges Really Collaborate?  

ERIC Educational Resources Information Center

|Seven small private colleges in three states have found a way to reduce their administrative technology costs and expand their technological capability at the same time. They have done it by choosing the common-sense, yet unconventional, college and university strategy of genuine collaboration. The result, the Independent College Enterprise…

Welch, Edwin H.

2008-01-01

88

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.

2010-01-01

89

New Collaborative Tools  

Microsoft Academic Search

In this paper we shall present two different yet complementary technologies toward collaboration. The first technology is based on interactive distributed and shared environment, that enables the users to access, modify\\/manipulate and view virtual objects being music, two or three dimensional images or video records. This software, called Virtual gallery is built on the system: Croquet originally developed by the

Ruzena Bajcsy; Sang-hack Yung; Orion Elenzil; Bradford Wilson; Rick McGeer; Klara Nahrstedts; C. Strothotte

2006-01-01

90

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.

2010-01-01

91

A Call for Collaboration  

ERIC Educational Resources Information Center

|In this digital world, being a "viewer" is passe. Web 2.0 tools--social networks, wikis, blogs, voicestream, YouTube, Google Docs--allow users to be participants. Instead of creating isolated users, such technologies foster community and collaboration. In this article, the author describes how schools in New York, Florida, New Jersey, and North…

Vogel, Carl

2009-01-01

92

Online Collaboration Products  

Microsoft Academic Search

The European Patent Office cooperates closely with the national patent offices from the member states of the European Patent Organization as well as many nonmember states. The EPO's Information Systems-Research and Prototyping directorate recently surveyed the functionality of available collaboration tools. The study looked at three scenarios related to EPO functions. The first concerns patent examiners. The second scenario relates

Vesna Hassler

2004-01-01

93

Cloud computing and collaboration  

Microsoft Academic Search

Purpose – The trends in library systems today is to utilize Web resources and services that the library does not own to provide services and useful innovations for library users. This paper aims to explore the two concepts behind this new trend. Explored will be the concept of cloud computing and Web collaboration, the ideas that are revolutionizing library automation

2009-01-01

94

Creative Conflict: Collaborative Playwriting  

ERIC Educational Resources Information Center

|In some ways, the project which the author's class had undertaken--creating collaborative plays about issues important in students' lives--was going very well. The students, 20 high school seniors, seemed engaged and invested in the work, from brainstorming and improvising to writing and revising. The class had read and watched a variety of…

Melville, Kathleen

2013-01-01

95

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

2008-01-01

96

Collaborative Learning in Wikis  

ERIC Educational Resources Information Center

|Wikis are a supporting tool for pupils' learning and collaboration. Tasks such as cooperative authoring, joined workbooks creation, document review, group assignments, reflection notes and others have been tried out using wikis as a facilitating tool [1]. However, few studies have reported how students actually perceive some well-claimed…

Chang, Yun-Ke; Morales-Arroyo, Miguel Angel; Than, Hla; Tun, Zarchi; Wang, Zhujun

2011-01-01

97

Building Collaborative Partnerships  

ERIC Educational Resources Information Center

|Communication and professional dialogue are essential elements of a high-quality education environment in which all students can succeed. Such an environment is especially important for the success of students with special needs. Unfortunately, collaboration between special educators, general educators, and other professionals is often hindered…

Madigan, Jennifer C.; Schroth-Cavataio, Georganne

2011-01-01

98

State Technologies Advancement Collaborative  

Microsoft Academic Search

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

David S. Terry

2012-01-01

99

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.

100

ONLINE COLLABORATION PRINCIPLES  

Microsoft Academic Search

This paper uses the community of inquiry model to describe the principles of collaboration. The principles describe social and cognitive presence issues associated with the three functions of teaching presence—design, facilitation and direction. Guidelines are discussed for each of the principles.

D. R. Garrison

101

Collaborative Filtering with Privacy  

Microsoft Academic Search

Server-based collaborative filtering systems have been very successful in e-commerce and in direct recommenda- tion applications. In future, they have many potential ap- plications in ubiquitous computing settings. But today's schemes have problems such as loss of privacy, favoring retail monopolies, and with hampering diffusion of innova- tions. We propose an alternative model in which users con- trol all of

John F. Canny

2002-01-01

102

Facilitating Collaborative Knowledge Construction  

Microsoft Academic Search

This paper will describe a detailed analysis of a problem-based learning group to understand how an expert facilitator supports collaborative knowledge construction. The study examines the questions and statements that students and the facilitator generated as they traversed a complex conceptual space. The facilitator tended to use open-ended metacognitive questioning and never offered new ideas. His contributions built on the

Cindy E. Hmelo-silver

2003-01-01

103

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…

Bell, Mary Ann; Kuon, Tricia

2009-01-01

104

Collaborative Learning, Circa 1880.  

ERIC Educational Resources Information Center

Collaborative learning, such as student-team learning or work-group learning, has become the focus of inservice workshops for teachers, a theme in professional journals, and the daily routine in an increasing number of classrooms. The women's study clubs in late 19th-century United States used a similar pedagogy. By the early 1900s, perhaps as…

Martin, Theodora Penny

105

The Circle of Collaboration.  

ERIC Educational Resources Information Center

|This brief paper describes the Circle of Collaboration approach at one elementary school in Utah that is focusing on development of an inclusive school for all students and implementation of a program (Balance Literacy) to enhance students' reading skills. Balance Literacy incorporates phonemic awareness, phonic instruction, fluency, vocabulary,…

Burnham, Jacki; Discher, Stephanie; Ingle, Krista

106

Collaborative Learning, Circa 1880.  

ERIC Educational Resources Information Center

|Collaborative learning, such as student-team learning or work-group learning, has become the focus of inservice workshops for teachers, a theme in professional journals, and the daily routine in an increasing number of classrooms. The women's study clubs in late 19th-century United States used a similar pedagogy. By the early 1900s, perhaps as…

Martin, Theodora Penny

107

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

1999-01-01

108

Collocated mobile collaboration  

Microsoft Academic Search

Mobile devices have changed, and continue to shape, the world in which we live. When these devices were first introduced they were most often used in isolation to schedule appointments, take notes, play games, or view or edit pictures and stories. The extent of the collaboration on these mobile devices was to make phone calls, which has led to their

Jerry Alan Fails; Allison Druin; Mona Leigh Guha

2009-01-01

109

Preparing Teachers for Collaboration.  

ERIC Educational Resources Information Center

The Keystone Project in Fort Worth, Texas, offers teachers the skills necessary for collaboration in a four-week Lab School. Teachers return to their schools to assume either a formal role as a Cadre Trainer or an informal role as a Demonstration Teacher in promoting a supportive school climate. (MLF)

Leggett, Diana; Hoyle, Sharon

1987-01-01

110

Technology's Role in Collaboration.  

ERIC Educational Resources Information Center

Describes Western Iowa Tech Community College's (WITCC) strategies to weave technology into its instruction and student-support functions. Describes a five-year initiative, launched to strengthen instructional and student-service programs through technological means. Through collaboration with PLATO Learning and Datatel, WITCC has demonstrated…

Stoik, Julene H.

2001-01-01

111

Online Collaboration: Curriculum Unbound!  

ERIC Educational Resources Information Center

|Freed from the nuisances of paper-based methods, districts are making creative use of digital tools to move their curricular documents online, where educators can collaborate on course development and lesson planning. Back in 2003, Amarillo Independent School District (Texas) had begun using the Blackboard Content System to provide lessons…

Waters, John K.

2007-01-01

112

Creative Conflict: Collaborative Playwriting  

ERIC Educational Resources Information Center

In some ways, the project which the author's class had undertaken--creating collaborative plays about issues important in students' lives--was going very well. The students, 20 high school seniors, seemed engaged and invested in the work, from brainstorming and improvising to writing and revising. The class had read and watched a variety of…

Melville, Kathleen

2013-01-01

113

Collaborative Distributed Virtual Sculpting  

Microsoft Academic Search

A lot of effort is now being put into developing collabo- rative distributed virtual environments. Howevel; very few projects address collaborative virtual sculpting in which the shapes of the target objects are likely changing continu- ously. Some major issues including user interaction, data transmission, concurrent object editing by multiple clients and rendering of deforming objects must be addressed in a

Frederick W. B. Li; Rynson W. H. Lau; Frederick F. C. Ng

2001-01-01

114

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

2009-01-01

115

Collaboration in the small vs. collaboration in the large  

Microsoft Academic Search

For the past several years, the Collaborative Software Development Laboratory (CSDL) at the University of Hawaii has been pursuing research along two general fronts: the development of computer systems to support group activities (collaborative software), as well as research on the process of developing software in a group setting (collaborative development). Our research projects include:• Egret, a client-server system for

Philip M. Johnson

1995-01-01

116

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.

NONE

1998-11-01

117

Collaborative testing to promote learning.  

PubMed

This pilot study examined the adequacy of collaborative testing to test students' knowledge, as well as a teaching tool for critical thinking, collaboration, and test-taking ability. The results indicated students using collaborative testing for unit examinations scored equally well on a cumulative final examination as students who did not use collaborative testing. There were some indications that the test-taking skills of students using collaborative testing improved, producing more effective testing of knowledge. Finally, collaborative testing provided students with the opportunity to become more proficient with critical thinking and collaboration skills, and all students reported decreased test anxiety. Instructors desiring to provide more classroom opportunities for learning these valuable skills may want to consider using collaborative testing as a learning experience, as well as an effective testing method. PMID:12661712

Lusk, Marilyn; Conklin, Lynn

2003-03-01

118

A new collaborative active learning tool for signal processing education  

Microsoft Academic Search

This paper introduces a distributed object based collaboration system called Collaboard, which can be effectively used to conduct signal processing classes in an interactive fashion. Collaboard allows a group of users in a heterogeneous network environment to share multimedia objects, such as text, geometric entities, equations, images, audio\\/video objects, and OLETM objects. Collaboard supports multiple user groups and allows a

Saad Lamouri; Y. Ozturk; Hilseyin Abut

1999-01-01

119

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.

1995-01-01

120

Technological collaboration in industrial networks  

Microsoft Academic Search

The author considers how companies handle their technological development in relation to external clients and organizations, particularly in terms of collaborative projects. Using research undertaken on Swedish companies, Håkansson shows that collaborative relationships are of strategic importance to companies, these relationships are investment-intensive, that the type of counterpart used is important (suppliers and customers), and that collaborative relationships generally evolve

Håkan Håkansson

1990-01-01

121

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

1988-01-01

122

STAKEHOLDER COLLABORATION AND HERITAGE MANAGEMENT  

Microsoft Academic Search

This article examines a collaborative approach to the relationship between herit- age management and tourism development in Luang Prabang, Laos. The purpose is to exam- ine stakeholder collaboration and management roles as well as the interdependence of the heritage conservation and tourism development. The research examines a UNESCO\\/Norwe- gian government project, aiming to promote collaboration between heritage conservation and tourism

Christina Aas; John Fletcher

2005-01-01

123

FACILITATING COLLABORATION IN ONLINE LEARNING  

Microsoft Academic Search

Collaboration entails working together toward a common goal, but what is the common goal we want students to work toward in classes? What kinds of interactions and outcomes do we value as collaboration, and how do we facilitate them? This paper addresses these questions, beginning with an examination of research on groups, community, and shared cognition that inform collaboration, and

Caroline Haythornthwaite

124

Collaborative Testing To Promote Learning.  

ERIC Educational Resources Information Center

Nursing students (n=24) took conventional individual unit and final exams; 25 others used collaborative testing for units and individual final exams. Overall comprehension was equivalent; collaboration improved unit exam scores. There was indirect evidence that collaboration altered test-taking skills. (SK)

Lusk, Marilyn; Conklin, Lynn

2003-01-01

125

Collaborative architecture design and evaluation  

Microsoft Academic Search

In this paper we describe a collaborative environment created to support distributed evaluation of a complex system architecture. The approach couples an interactive architecture browser with collaborative walkthroughs of an evolving architectural representation. The collaborative architecture browser was created to facilitate involvement of project stakeholders from geographically dispersed, heterogeneous organizations. The paper provides a rationale for the approach, describes the

Steven R. Haynes; Amie L. Skattebo; Jonathan A. Singel; Mark A. Cohen; Jodi L. Himelright

2006-01-01

126

Collaboration in local tourism policymaking  

Microsoft Academic Search

Collaborations among stakeholders to develop policies for a destination are the subject of growing interest among researchers and managers. This paper presents an analytical framework to assess whether local collaborative arrangements are inclusionary and involve collective learning and consensus-building. The framework considers whether or not specific collaborations reduce the power imbalances between stakeholders, and it develops the concept of partial

Bill Bramwell; Angela Sharman

1999-01-01

127

Usability Dimensions in Collaborative GIS  

Microsoft Academic Search

Collaborative GIS requires careful consideration of the Human-Computer Interaction (HCI) and Usability aspects, given the variety of users that are expected to use these systems, and the need to ensure that users will find the system effective, efficient, and enjoyable. The chapter explains the link between collaborative GIS and usability engineering\\/HCI studies. The integration of usability considerations into collaborative GIS

Shivanand Balram; Suzana Dragicevic

128

Modeling Sustainability through Collaboratively Organizing  

ERIC Educational Resources Information Center

|This project explores collaborative efforts involving the United States Forest Service and the communities it serves. By contributing to our understanding leadership dynamics within collaborative groups in this setting, this project provides resource managers and communities with a more refined insight into how collaborative groups are maintained…

Wood, Michael D.

2012-01-01

129

Culture-Aware Collaborative Learning  

ERIC Educational Resources Information Center

|Purpose: In a collaborative learning environment there will be many learners with diverse cultures. These learners should be supported to communicate and collaborate among themselves. The variety of the communication and collaboration tools and modes available to each learner would depend on his/her personal cultural background. The purpose of…

Economides, Anastasios A.

2008-01-01

130

Access control for collaborative environments  

Microsoft Academic Search

Access control is an indispensable part of any informa- tion sharing system. Collaborative environments introduce new requirements for access control, which cannot be met by using existing models developed for non-collaborative domains. We have developed a new access control model for meeting these requirements. The model is based on a generalized editing model of collaboration, which assumes that users interact

HongHai Shen; Prasun Dewan

1992-01-01

131

The Collaborative Heliophysics Observatory  

NASA Astrophysics Data System (ADS)

The Collaborative Heliophysics Observatory (CHO) would provide a robust framework and enabling tools to fully utilize the VOs for scientific discovery and collaboration. Scientists across the realm of heliophysics would be able to create, use and share applications -- either as services using familiar tools or through intuitive workflows -- that orchestrate access to data across all virtual observatories. These applications can be shared freely knowing that proper recognition of data and processing components are acknowledged; that erroneous use of data is flagged; and that results from the analysis runs will in themselves be shared Ð all in a transparent and automatic fashion. In addition, the CHO would incorporate cross-VO models and tools to weave the various virtual observatories into a unified system. These provide starting points for interactions across the solar/heliospheric and heliospheric/magnetospheric boundaries.

Hurlburt, N.; Freeland, S.; Cheung, M.; Bose, P.

2007-12-01

132

A Holographic Collaboration  

NASA Astrophysics Data System (ADS)

In the Fall of '87 Rudie Berkhout and myself started a very intense and fruitful collaboration producing a series of holographic art pieces that were experimental but that reflected our different artistic sensibilities. The masters were made in my portrait studio in the Museum of Holography in New York using a pulse laser and later transferred in my Long Island City Studio. These pieces were shown at the Holocenter in 2009 and poignantly, it was the last show that Rudie had while he was alive. My paper details the process of an artistic collaboration, its pitfalls and advantages, its conflicts and compromises. It will illuminate the creative process that from two separate and very different streams melded into beautiful and evocative art.

Nicholson, Ana Maria

2013-02-01

133

Collaboratively Improvising Magic  

Microsoft Academic Search

We describe how a behind-the-scenes production crew managed participation in an on-line improvised dramatic performance in\\u000a a shared virtual world that was broadcast to viewers. We introduce the approach of collaboratively improvising magic, where\\u000a participants indirectly request interactions with objects through extended incantations, rather than manipulating them directly.\\u000a Invisible stage-hands follow these participants around the world, monitoring their activities and

Adam Drozd; John Bowers; Steve Benford; Chris Greenhalgh; Mike Fraser

134

Advances in Collaborative Filtering  

Microsoft Academic Search

\\u000a The collaborative filtering (CF) approach to recommenders has recently enjoyed much interest and progress. The fact that it\\u000a played a central role within the recently completed Netflix competition has contributed to its popularity. This chapter surveys\\u000a the recent progress in the field. Matrix factorization techniques, which became a first choice for implementing CF, are described\\u000a together with recent innovations. We

Yehuda Koren; Robert M. Bell

2011-01-01

135

Collaborative Courseware Authoring Support  

Microsoft Academic Search

We refined our knowledge classification and indexing approach applied in our previously developed system AIMS (Agent-based Information Management System) by introducing ontology-oriented support for collaborative courseware authoring. In order to provide a basis for formal semantics and reasoning in performing generic authoring tasks, we add ontology-based layers in the courseware authoring architecture. Ontological structuring also opens the way for cooperative

Darina Dicheva; Lora Aroyo; Alexandra Cristea

2002-01-01

136

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

137

MMI: Increasing Community Collaboration  

NASA Astrophysics Data System (ADS)

Building community requires a collaborative environment and guidance to help move members towards a common goal. An effective environment for community collaboration is a workspace that fosters participation and cooperation; effective guidance furthers common understanding and promotes best practices. The Marine Metadata Interoperability (MMI) project has developed a community web site to provide a collaborative environment for scientists, technologists, and data managers from around the world to learn about metadata and exchange ideas. Workshops, demonstration projects, and presentations also provide community-building opportunities for MMI. MMI has developed comprehensive online guides to help users understand and work with metadata standards, ontologies, and other controlled vocabularies. Documents such as "The Importance of Metadata Standards", "Usage vs. Discovery Vocabularies" and "Developing Controlled Vocabularies" guide scientists and data managers through a variety of metadata-related concepts. Members from eight organizations involved in marine science and informatics collaborated on this effort. The MMI web site has moved from Plone to Drupal, two content management systems which provide different opportunities for community-based work. Drupal's "organic groups" feature will be used to provide workspace for future teams tasked with content development, outreach, and other MMI mission-critical work. The new site is designed to enable members to easily create working areas, to build communities dedicated to developing consensus on metadata and other interoperability issues. Controlled-vocabulary-driven menus, integrated mailing-lists, member-based content creation and review tools are facets of the new web site architecture. This move provided the challenge of developing a hierarchical vocabulary to describe the resources presented on the site; consistent and logical tagging of web pages is the basis of Drupal site navigation. The new MMI web site presents enhanced opportunities for electronic discussions, focused collaborative work, and even greater community participation. The MMI project is beginning a new initiative to comprehensively catalog and document tools for marine metadata. The new MMI community-based web site will be used to support this work and to support the work of other ad-hoc teams in the future. We are seeking broad input from the community on this effort.

Galbraith, N. R.; Stocks, K.; Neiswender, C.; Maffei, A.; Bermudez, L.

2007-12-01

138

Cognitive Guidelines to Support Effective Collaboration.  

National Technical Information Service (NTIS)

The objectives of this project are: Synthesize cognitive theory of collaboration; Articulate critical knowledge for successful collaboration; Develop cognitive-based collaboration metrics; Apply theory to help teams collaborate more effectively (focus of ...

C. Christie D. Noble J. Richardson J. Yeargain S. Lakind

2004-01-01

139

Estimation of renal function in patients with diabetes.  

PubMed

Diabetes is the leading cause of chronic kidney disease (CKD), which makes estimation of renal function crucial. Serum creatinine is not an ideal marker of glomerular filtration rate (GFR), which also depends on digestive absorption, and the production of creatinine in muscle and its tubular secretion. Formulas have been devised to estimate GFR from serum creatinine but, given the wide range of GFR, proteinuria, body mass index and specific influence of glycaemia on GFR, the uncertainty of these estimations is a particular concern for patients with diabetes. The most popular recommended formulas are the simple Cockcroft-Gault equation, which is inaccurate and biased, as it calculates clearance of creatinine in proportion to body weight, and the MDRD equation, which is more accurate, but systematically underestimates normal and high GFR, being established by a statistical analysis of results from renal-insufficient patients. This underestimation explains why the MDRD equation is repeatedly found to give a poor estimation of GFR in patients with recently diagnosed diabetes and is a poor tool for reflecting GFR decline when started from normal, as well as the source of unexpected results when applied to epidemiological studies with a 60mL/min/1.73m(2) threshold as the definition of CKD. The more recent creatinine-based formula, the Mayo Clinic Quadratic (MCQ) equation, and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) improve such underestimation, as both were derived from populations that included subjects with normal renal function. Determination of cystatin C is also promising, but needs standardisation. PMID:21680218

Rigalleau, V; Beauvieux, M-C; Gonzalez, C; Raffaitin, C; Lasseur, C; Combe, C; Chauveau, P; De la Faille, R; Rigothier, C; Barthe, N; Gin, H

2011-06-15

140

Verification and Validation of the Fractal Attrition Equation  

Microsoft Academic Search

Under the auspices of The Technical Cooperation Program (TTCP) Joint Systems & Analysis (JSA) Technical Panel 3 (Joint Concepts and Analysis) research program, researchers in New Zealand and the United Kingdom have been collaborating on the development of a new combat attrition equation. This report examines this new approach, its relationships to existing systems of Lanchester equations and its prospects

Nigel Perry

141

Computer supported collaborative design based on knowledge  

Microsoft Academic Search

According to the requirements of enterprise supplying chain collaboration and territorial enterprise group collaboration, the collaborative mode based on enterprise internal collaboration, inter-enterprise collaboration and networked manufacturing is analyzed here, and the functional requirements of a collaborative design platform based on networked manufacturing is given. Based on electronic commerce, optimal configuration of enterprise accessory resources and design technology based on

Lin-fu Sun; Chengdu Sichuan

2004-01-01

142

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

2012-01-30

143

International Collaboration: No Fishing?  

NSDL National Science Digital Library

The focus of this lesson is on international Marine Protected Areas (MPAs). It addresses the topic of international collaboration in protecting natural and cultural resources. Students will learn to identify internet resources containing information on MPA projects, describe a process for evaluating the effectiveness of MPAs, and explain the relationships between biophysical, socioeconomic, and governance issues in these areas. This is part of a set of lessons in ocean science that emphasize hands-on activities using online data resources. Links to necessary worksheets and online materials are provided.

144

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

2006-03-31

145

Collaborative Hypertext of Radiology  

NSDL National Science Digital Library

The Medical College of WisconsinâÂÂs 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.

2007-04-10

146

Advances in Collaborative Filtering  

NASA Astrophysics Data System (ADS)

The collaborative filtering (CF) approach to recommenders has recently enjoyed much interest and progress. The fact that it played a central role within the recently completed Netflix competition has contributed to its popularity. This chapter surveys the recent progress in the field. Matrix factorization techniques, which became a first choice for implementing CF, are described together with recent innovations. We also describe several extensions that bring competitive accuracy into neighborhood methods, which used to dominate the field. The chapter demonstrates how to utilize temporal models and implicit feedback to extend models accuracy. In passing, we include detailed descriptions of some the central methods developed for tackling the challenge of the Netflix Prize competition.

Koren, Yehuda; Bell, Robert

147

Facilitating transformation through collaboration.  

PubMed

The philosophical underpinnings of transformative education were utilized to redesign a course taught to special education majors and nursing students at a rural southeastern university. The main goal when restructuring the class was to develop a course that would encourage communication and collaboration between education and nursing majors within the school community. The current course, "Health Care Perspectives of Exceptional Students," focuses on specific health care topics, with nurse faculty presenting the health care aspects and education faculty discussing educational implications for the classroom teacher. Every class includes dialogue and activities that require interaction. The last two classes are devoted to first-aid training and CPR certification. During the evaluation phase of the course, both education and nursing majors responded positively to the question of whether or not medically fragile children belong in the classroom. Furthermore, they saw the need for communication and collaboration between the classroom teacher and the school nurse as essential for effectively serving the medically fragile child in the school setting. PMID:12743979

Lazenby, Ramona Browder; Morton, Rhonda Collins

148

Knowledge convergence and collaborative learning  

Microsoft Academic Search

This paper operationalized the notion of knowledge convergence and assessed quantitatively how much knowledge convergence\\u000a occurred during collaborative learning. Knowledge convergence was defined as an increase in common knowledge where common\\u000a knowledge referred to the knowledge that all collaborating partners had. Twenty pairs of college students collaborated to\\u000a learn a science text about the human circulatory system. Comparisons of individual

Heisawn Jeong; Michelene T. H. Chi

2007-01-01

149

Geographical proximity and scientific collaboration  

Microsoft Academic Search

Geography, economic, socio-political and language are considered to be factors that effect the level of research collaboration. However, to-date no technique has been developed to isolate the effect of geographical proximity from the other factors. This paper presents a methodology for specifically examining geographical effects on intra-national scientific collaboration. An investigation of intra-national university-university collaboration in Canada, Australia and the

J. S. Katz

1994-01-01

150

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

2002-05-22

151

PAHO/WHO Collaborating Center  

Center for Biologics Evaluation and Research (CBER)

... CBER has been a Pan American Health Organization (PAHO)/World Health Organization (WHO) Collaborating Center for Biological ... More results from www.fda.gov/biologicsbloodvaccines/internationalactivities

152

Interaction and Collaboration Using an Intelligent Collaborative Learning Environment  

Microsoft Academic Search

The goal of this research is to design and prototype an intelligent collaborative learning environment. Within this environment, we study synchronous interaction among group members (students) working on a problem\\/project. Students use an Intelligent Collaborative Support System (ICSS) and a shared activity space: the Tulka Whiteboard. Two main interaction spaces have been implemented: a planning-communication space and a production space.

Robert M. Aiken; Marie-Noelle Bessagnet; Judith Israel

2005-01-01

153

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

1997-01-01

154

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

2009-01-01

155

Ethical issues surrounding interprofessional collaboration.  

PubMed

Global healthcare and health disciplines' education policy and position statements contain mandates for education that incorporates interprofessional collaboration. One of the popular educational technologies involves virtual simulation as tools for educating future generations of healthcare professionals. This article discusses potential ethical implications for interprofessional collaboration from a humanbecoming lens of understanding. PMID:24085666

Milton, Constance L

2013-10-01

156

Team Collaboration: Lessons Learned Report.  

National Technical Information Service (NTIS)

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 effo...

R. Y. Arterberrie S. W. Eubanks D. R. Kay S. E. Prahst D. P. Wenner

2005-01-01

157

Recency-based collaborative filtering  

Microsoft Academic Search

Collaborative flltering is regarded as one of the most promising recommendation algorithms. Traditional approaches for collaborative flltering do not take con- cept drift into account. For example, user purchase interests may be volatile. A new mother may be in- terested in baby toys, although previously she had no interest in these. A man may like romantic fllms while he preferred

Yi Ding; Xue Li; Maria E. Orlowska

2006-01-01

158

Collaborative Programming in Nonformal Education.  

ERIC Educational Resources Information Center

|The paper examines collaborative program development in participatory nonformal education, emphasizing the process of programming based on field experiences of the Center for International Education of the University of Massachusetts. The objective is to serve as an initial step in the development of collaborative programming theory and practice.…

Von Hahmann, Gail

159

Learning through Collaboration: Student Perspectives  

ERIC Educational Resources Information Center

|This research examines the effectiveness of collaborative learning pedagogies from the perspective of students. There is a rich history of research on collaborative learning demonstrating the effectiveness and this has led to indexing educational quality by student engagement. However, the findings from this study question the efficacy of…

Osman, Gihan; Duffy, Thomas M.; Chang, Ju-yu; Lee, Jieun

2011-01-01

160

Mobile collaboration for young children  

Microsoft Academic Search

Social interaction and collaboration are essential to the emotional and cognitive development of young children [40]. Constructionism [32] is a learning theory where children learn as they build or construct a public artifact. Creative activities that promote collaboration, especially those based on principles of constructionism, provide enhanced learning opportunities for young children. Mobile devices can support the learning experience as

Jerry Alan Fails

2007-01-01

161

Collaborative Writing: Online Versus Frontal  

Microsoft Academic Search

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, Mitchell, & Posner, 1994). The aim of this

David Passig; Gali Schwartz

2007-01-01

162

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.

2011-01-01

163

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…

Jeong, Heisawn; Chi, Michelene T. H.

2007-01-01

164

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

2008-01-01

165

Collaboration as a second thought.  

SciTech Connect

Collaboration is often an afterthought to a project or development. In this paper we describe and analyze our experiences in developing collaborative technologies, most often involving the sharing of visual information. We have often developed these in a context that required us to retrofit existing analysis applications with collaboration capabilities. This approach, though fruitful, is time-consuming, expensive, and often difficult to re-apply elsewhere - it is just hard to change an existing application. One way to make such an effort easier is to package the collaborative components as a kit that can be leveraged on a case-by-case basis. The fixed interface provided by a well-designed toolkit eases the integration process by providing an unchanging and familiar set of components to deploy. Better still, we find, are approaches that require no modification of applications while providing rich and powerful means for sharing information with collaborators. We discuss three separate and illuminating examples that meet this criterion in different ways: (1) building the collaborative potential into the underlying abstractions on which operating systems are built, (2) building tools that live side-by-side with any application in the context provided by the operating system, or by (3) building information tools that use collaborative modalities to better integrate with our workflow. These are probably not the only options, but they all derive from an approach where collaboration is considered early in the design process and therefore manifests itself deep in the computing infrastructure giving it a wider cast.

Hereld, M.; Papka, M. E.; Uram, T. D.; Mathematics and Computer Science

2008-01-01

166

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

2005-01-01

167

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

2010-01-01

168

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…

Wagoner, Cynthia L.

2012-01-01

169

Collaborative virtual environments art exhibition  

Microsoft Academic Search

This panel presentation will exhibit artwork developed in CAVEs and discuss how art methodologies enhance the science of VR through collaboration, interaction and aesthetics. Artists and scientists work alongside one another to expand scientific research and artistic expression and are motivated by exhibiting collaborative virtual environments. Looking towards the arts, such as painting and sculpture, computer graphics captures a visual

Margaret Dolinsky; Josephine Anstey; Dave E. Pape; Julieta C. Aguilera; Helen-Nicole Kostis; Daria Tsoupikova

2005-01-01

170

Supply chain collaboration: what's happening?  

Microsoft Academic Search

Purpose – Collaboration has been referred to as the driving force behind effective supply chain management and may be the ultimate core capability. However, there is a fairly widespread belief that few firms have truly capitalized on its potential. A study was undertaken to assess the current level of supply chain collaboration and identify best practice. Design\\/methodology\\/approach – Supply chain

Soonhong Min; Anthony S. Roath; Patricia J. Daugherty; Stefan E. Genchev; Haozhe Chen; Aaron D. Arndt; R. Glenn Richey

2005-01-01

171

Collaborative Governance 2.0  

Microsoft Academic Search

Purpose – This paper aims to explore how existing collaborative governance arrangements in the context of corporate responsibility (e.g. the Global Reporting Initiative and Social Accountability 8000) need to collaborate more directly in order to enhance their impact. The objective of this paper is twofold: primarily, to explore existing and potential linkages between multi-stakeholder standards; but, at the same time,

Andreas Rasche

2010-01-01

172

Web-based collaboration tools.  

PubMed

In this bimonthly series, the author examines how nurse educators can use Internet and Web-based computer technologies such as search, communication, and collaborative writing tools; social networking and social bookmarking sites; virtual worlds; and Web-based teaching and learning programs. This article describes Web-based collaboration tools and techniques to increase their effectiveness. PMID:19901730

Wink, Diane M

173

Clustering Items for Collaborative Filtering  

Microsoft Academic Search

This short paper reports on work in progress related to applying data partitioning\\/clustering algorithms to ratings data in collaborative filtering. We use existing data partitioning and clustering algorithms to partition the set of items based on user rating data. Predictions are then computed independently within each partition. Ideally, partitioning will improve the quality of collaborative filtering predictions and increase the

Mark O'Connor; Jon Herlocker

174

Managing complexity in industrial collaborations  

Microsoft Academic Search

Joining collaborations and maintaining relationships has become a major concern for managers in industrial companies. This change, to a large extent, arises due to the globalization of markets and the ongoing specialization of companies, fostered by the possibilities of information technology and data-communication. However, such a structural change requires adaptations by companies to fit the characteristics of industrial collaborations. In

G. Schuh; A. Sauer; S. Doering

2008-01-01

175

An emerging view of scientific collaboration: Scientists' perspectives on collaboration and factors that impact collaboration  

Microsoft Academic Search

Collaboration is often a critical aspect of scientific re- search, which is dominated by complex problems, rap- idly changing technology, dynamic growth of knowl- edge, and highly specialized areas of expertise. An indi- vidual scientist can seldom provide all of the expertise and resources necessary to address complex research problems. This paper describes collaboration among a group of scientists, and

Noriko Hara; Paul Solomon; Seung-lye Kim; Diane H. Sonnenwald

2003-01-01

176

An Emerging View of Scientific Collaboration: Scientists' Perspectives on Collaboration and Factors that Impact Collaboration  

Microsoft Academic Search

Collaboration is often a critical component in scientific research, which is dominated by complex problems, rapidly changing technology, dynamic growth of knowledge, and highly specialized areas of expertise. An individual scientist can seldom provide all of the expertise and resources necessary to address complex research problems. This paper describes collaboration among a group of scientists, and considers how their experiences

Noriko Hara; Paul Solomon; Diane H. Sonnenwald; Seung-Lye Kim

2001-01-01

177

An Emerging View of Scientific Collaboration: Scientists' Perspectives on Collaboration and Factors That Impact Collaboration.  

ERIC Educational Resources Information Center

|Describes collaboration among a group of scientists and considers how their experiences are socially shaped. Data analysis of interviews, observations of videoconferences and meetings, and a sociometric survey led to the development of a framework that identifies forms of collaboration that emerged among scientists and factors which influenced…

Hara, Noriko; Solomon, Paul; Kim, Seung-Lye; Sonnenwald, Diane H.

2003-01-01

178

A collaborative wheelchair system.  

PubMed

This paper describes a novel robotic wheelchair, and reports experiments to evaluate its efficiency and understand how human operators use it. The concept at the heart of the collaborative wheelchair assistant (CWA) is to rely on the user's motion planning skills while assisting the maneuvering with flexible path guidance. The user decides where to go and controls the speed (including start and stop), while the system guides the wheelchair along software-defined guide paths. An intuitive path editor allows the user to avoid dangers or obstacles online and to modify the guide paths at will. By using the human sensory and planning systems, no complex sensor processing or artificial decision system is needed, making the system safe, simple, and low-cost. We investigated the performance of the CWA on its interaction with able-bodied subjects and motion efficiency. The results show that path guidance drastically simplifies the control. Using the CWA, the wheelchair user needs little effort from the first trial, while moving efficiently with a conventional wheelchair requires adaptation. PMID:18403284

Zeng, Qiang; Teo, Chee Leong; Rebsamen, Brice; Burdet, Etienne

2008-04-01

179

Collaborative Lesson Archive  

NSDL National Science Digital Library

The Collaborative Lesson Archive of the University of Illinois is intended to be "a forum for the creation, distribution, and archival of education curricula for all grade levels and subject areas." The main page contains links to lessons organized by individual grade levels from kindergarten to beyond the twelfth grade. Once chosen, users are presented with a list of subjects including geography, science, and math, among others, which then contain various lessons. The sixth grade science section, for example, holds links to more than fifty lessons, their authors, and their dates of submission. Teachers can search the entire archive of resources by various criteria as well as submit their own lesson, culminating in a Web site that will surely be found helpful by educators everywhere. The only caveat is that, as is stated on the welcome page, the "quantity and quality of the content is entirely dependent on the Internet community... since we only provide the framework and the storage area, the rest is up to you."

2007-08-16

180

Practice solving equations  

NSDL National Science Digital Library

Students can practice solving equations on several sites. Use one of the sites below to solve 10 or more equations. Record the solution for at least 2 'difficult' problems. 1) interactive algebra: solving equations 2) interactive: solving pre-set equations 3) solving linear equations: nlvm ...

Johnson, Mrs.

2010-06-05

181

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 ...

Reddish, Ms.

2011-09-30

182

Convolution equations and the transport equation  

Microsoft Academic Search

\\u000a In this chapter the factorization theory developed in the previous chapters is applied to solve a linear transport equation.\\u000a It is known that the transport equation may be transformed into a Wiener-Hopf integral equation with an operator-valued kernel\\u000a function (see [40]). An equation of the latter type can be solved explicitly if a canonical factorization of its symbol is\\u000a available

Harm Bart; Marinus A. Kaashoek; André C. M. Ran

183

5 CFR 9701.105 - Continuing collaboration.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Continuing collaboration. 9701.105 Section 9701.105...Provisions § 9701.105 Continuing collaboration. (a) In accordance with...representatives to be engaged in the continuing collaboration process. (3) Each national...

2010-01-01

184

5 CFR 9701.105 - Continuing collaboration.  

Code of Federal Regulations, 2010 CFR

...2009-01-01 false Continuing collaboration. 9701.105 Section 9701.105...Provisions § 9701.105 Continuing collaboration. (a) In accordance with...representatives to be engaged in the continuing collaboration process. (3) Each national...

2009-01-01

185

An Agent-Based Model of Research Collaboration in Collaborative Tagging for Scientific Publications  

Microsoft Academic Search

The paper describes an agent-based model of research collaboration in collaborative tagging system in order to develop an effective collaboration support system for scientific research communities. Based on a survey on social software such as collaborative tagging for the purpose of collaboration on the web, at first we analyze requirements for the social software as a collaboration support system for

Piyanuch Klaisubun; Takashi Ishikawa

2006-01-01

186

Collaborative writing: Tools and tips.  

PubMed

Majority of technical writing is done by groups of experts and various web based applications have made this collaboration easy. Email exchange of word processor documents with tracked changes used to be the standard technique for collaborative writing. However web based tools like Google docs and Spreadsheets have made the process fast and efficient. Various versioning tools and synchronous editors are available for those who need additional functionality. Having a group leader who decides the scheduling, communication and conflict resolving protocols is important for successful collaboration. PMID:18032878

Eapen, Bell Raj

187

Confucius: A Scientific Collaboration System Using Collaborative Scientific Workflows  

Microsoft Academic Search

Large-scale scientific data management and analysis usually relies on many distributed scientists with diverse expertise. In recent years, such a collaborative effort is often composed and automated into a dataflow-oriented process, a so-called scientific workflow. However, existing scientific workflow tools are single user-oriented and do not support collaborative scientific workflow composition, execution, and management among multiple distributed scientists. In this

Jia Zhang; Daniel Kuc; Shiyong Lu

2010-01-01

188

When is collaboration not collaboration? When it's militarized.  

PubMed

In adopting the medical lobby's preferred definition of collaboration where midwives are legally compelled to seek endorsement for their care plan from an obstetrician, Determination 2010 connotes a form of militarized collaboration and thus negates all that genuine collaboration stands for--equality, mutual trust and reciprocal respect. Using Critical Discourse Analysis, the first half of this paper analyses the submissions from medical, midwifery and consumer peak organisations to the Maternity Services Review and Senate reviews held between 2008 and 2010 showing that Determination 2010 privileges the medical lobby worldview in adopting a vertical definition of collaboration. The second half of the paper responds to the principal assumption of Determination 2010--that midwives do not voluntarily collaborate. It argues by reference to a qualitative inquiry conducted into select caseload maternity units in South Australia, Victoria and New South Wales during 2009-2010 that this presupposition is erroneous. The evidence shows that genuine collaboration is possible without legislative force but it requires a coalition of the willing among senior midwives and obstetricians to institute regular interdisciplinary meetings and clinical reviews and to model respectful behaviour to new entrants. PMID:21489895

Lane, Karen

2011-04-12

189

Structural analysis equations  

Treesearch

General technical report FPL ; GTR-190. ... Description: Equations for deformation and stress, which are the basis for tension ... Keywords: Structural analysis, elasticity, bending, mathematical models, equations, mechanical properties, ...

190

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.

Research, Wisconsin C.; Wisconsin-Madison, University O.

191

Distributed Coordinated Collaboration Spaces (DCCS).  

National Technical Information Service (NTIS)

Modern Command and Control: Requies communication, collaboration, and coordination among US (and Coalition) forces; Is synchronous and asynchronous; tactical and strategic in nature Team members often co-located and distributed based upon: (1) Geographica...

J. Pester-DeWan M. St. John M. G. Averett R. A. Moore

2006-01-01

192

Collaborative Center in Polymer Photonics.  

National Technical Information Service (NTIS)

A Collaborative Center in Polymer Photonics (CCPP) that utilizes the collected research expertise of the AFRL Materials and Manufacturing Directorate and The University of Akron College of Polymer Science and Polymer Engineering in the development of poly...

F. W. Harris S. Cheng M. D. Foster W. J. Brittain T. Kyu

2006-01-01

193

Collaborative innovation in ubiquitous systems  

Microsoft Academic Search

Advances in microelectronics, semiconductor and information and communication technologies allow the creation and the development\\u000a of ubiquitous systems. These intelligent systems would enable and support new dimensions of collaboration that can make business\\u000a processes more efficient. In this paper, we analyse the possible contribution of the upcoming level of intelligence to collaborative\\u000a innovation processes within and between enterprises as well.

Veronica Serrano; Thomas Fischer

2007-01-01

194

Are you a collaborative leader?  

PubMed

Social media and technologies have put connectivity on steroids and made collaboration more integral to business than ever. But without the right leadership, collaboration can go astray. Employees who try to collaborate on everything may wind up stuck in endless meetings, struggling to reach agreement. On the other side of the coin, executives who came of age during the heyday of "command and control" management can have trouble adjusting their style to fit the new realities. In their research on top-performing CEOs, Insead professors Ibarra and Hansen have examined what it takes to be a collaborative leader. They've found that it requires connecting people and ideas outside an organization to those inside it, leveraging diverse talent, modeling collaborative behavior at the top, and showing a strong hand to keep teams from getting mired in debate. In this article, they describe tactics that executives from Akamai, GE, Reckitt Benckiser, and other firms use in those four areas and how they foster high-performance collaborative cultures in their organizations. PMID:21800471

Ibarra, Herminia; Hansen, Morten T

195

Age-Specific Association of Reduced Estimated Glomerular Filtration Rate and Albuminuria with All-Cause Mortality  

PubMed Central

Summary Background and objectives It has been suggested that reduced estimated GFR (eGFR) among older adults does not necessarily reflect a pathologic phenomenon. Design, setting, participants, & measurements We examined the association between eGFR and albumin-to-creatinine ratio (ACR) and all-cause mortality stratified by age (45 to 59.9, 60 to 69.9, 70 to 79.9, and ?80 years) among 24,350 U.S. adults in the population-based REasons for Geographic and Racial Differences in Stroke (REGARDS) study. A spot urine sample was used to calculate ACR, and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was used to calculate eGFR. All-cause mortality was assessed over a median follow-up of 4.5 years. Results Among participants ?80 years of age (n = 1669), the age, race, gender, and geographic region of residence adjusted hazard ratios (95% confidence intervals) for mortality associated with eGFR levels of 45 to 59.9 and <45 ml/min per 1.73 m2, versus ?60 ml/min per 1.73 m2, were 1.6 (1.3 – 2.1) and 2.2 (1.7 – 2.9), respectively. Also, among participants ?80 years of age, the hazard ratios for mortality associated with ACR levels of 10 to 29.9, 30 to 299.9, and ?300 mg/g, versus <10 mg/g, were 1.7 (1.3 – 2.1), 2.5 (1.9 – 3.3), and 5.1 (3.6 – 7.4), respectively. These associations were present after further multivariable adjustment and within the younger age groupings studied. Conclusions These data suggest that reduced eGFR and albuminuria confer an increased risk for mortality in all age groups, including adults ?80 years of age.

Bowling, C. Barrett; Gao, Liyan; Rizk, Dana; Judd, Suzanne; Tanner, Rikki M.; McClellan, William; Warnock, David G.

2011-01-01

196

Macroscopic transport equations  

Microsoft Academic Search

The macroscopic transport equations, necessary for the description of plasmas as fluids are derived in a way which emphasizes their origin in the kinetic theory. The equations of conservation of mass, of momentum, and of energy, are obtained from a general transport equation, and are identified with the hierarchy of moments of the Boltzmann equation. The approximations inherent in the

J. A. Bittencourt

1979-01-01

197

Assessment of (Computer-Supported) Collaborative Learning  

ERIC Educational Resources Information Center

|Within the (Computer-Supported) Collaborative Learning (CS)CL research community, there has been an extensive dialogue on theories and perspectives on learning from collaboration, approaches to scaffold (script) the collaborative process, and most recently research methodology. In contrast, the issue of assessment of collaborative learning has…

Strijbos, J. -W.

2011-01-01

198

Collaborative Alliances: Moving from Practice to Theory  

Microsoft Academic Search

The Journal of Applied Behavioral Science presents two special issues on collaborative alliances that examine the contributions and limits of existing theories for explaining collaboration, and that clarify and expand our understanding of this phenomenon. In this introduction, the following major theoretical perspectives are applied to explain collaboration and collaborative alliances: resource dependence theory; corporate social performance\\/institutional economics theory; strategic

Barbara Gray; Donna J. Wood

1991-01-01

199

Group Collaboration for Mars Rover Mission Operations  

Microsoft Academic Search

Absfract- Group collaboration capabilities have been developed for Internet-based Mars rover mission operations. Internet-based op- erations enables scientists to participate in daily Mars rover mission operations from their home institutions. Group collaboration enables geographically separated users to collaboratively analyze downlinked data and plan new activities for the rover. The motivation for group collaboration in Mars rover mission operations and the

Paul G. Backes; Kam S. Tso; Jeffrey S. Norris; Robert Steinke

2002-01-01

200

Teacher learning and collaboration in innovative teams  

Microsoft Academic Search

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 collaboration. In cross?site analysis two complementary patterns of teacher learning and collaboration

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

2010-01-01

201

Specifying Computer-Supported Collaboration Scripts  

ERIC Educational Resources Information Center

|Collaboration scripts facilitate social and cognitive processes of collaborative learning by shaping the way learners interact with each other. Computer-supported collaboration scripts generally suffer from the problem of being restrained to a specific learning platform. A standardization of collaboration scripts first requires a specification of…

Kobbe, Lars; Weinberger, Armin; Dillenbourg, Pierre; Harrer, Andreas; Hamalainen, Raija; Hakkinen, Paivi; Fischer, Frank

2007-01-01

202

Simultaneous Equations Model  

Microsoft Academic Search

\\u000a Economists formulate models for consumption, production, investment, money demand and money supply, labor demand and labor\\u000a supply to attempt to explain the workings of the economy. These behavioral equations are estimated equation by equation or\\u000a jointly as a system of equations. These are known as simultaneous equations models. Much of today’s econometrics have been influenced and shaped by a group

Badi H. Baltagi

203

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

2009-08-13

204

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.

2004-08-01

205

Network Effects on Scientific Collaborations  

PubMed Central

Background The analysis of co-authorship network aims at exploring the impact of network structure on the outcome of scientific collaborations and research publications. However, little is known about what network properties are associated with authors who have increased number of joint publications and are being cited highly. Methodology/Principal Findings Measures of social network analysis, for example network centrality and tie strength, have been utilized extensively in current co-authorship literature to explore different behavioural patterns of co-authorship networks. Using three SNA measures (i.e., degree centrality, closeness centrality and betweenness centrality), we explore scientific collaboration networks to understand factors influencing performance (i.e., citation count) and formation (tie strength between authors) of such networks. A citation count is the number of times an article is cited by other articles. We use co-authorship dataset of the research field of ‘steel structure’ for the year 2005 to 2009. To measure the strength of scientific collaboration between two authors, we consider the number of articles co-authored by them. In this study, we examine how citation count of a scientific publication is influenced by different centrality measures of its co-author(s) in a co-authorship network. We further analyze the impact of the network positions of authors on the strength of their scientific collaborations. We use both correlation and regression methods for data analysis leading to statistical validation. We identify that citation count of a research article is positively correlated with the degree centrality and betweenness centrality values of its co-author(s). Also, we reveal that degree centrality and betweenness centrality values of authors in a co-authorship network are positively correlated with the strength of their scientific collaborations. Conclusions/Significance Authors’ network positions in co-authorship networks influence the performance (i.e., citation count) and formation (i.e., tie strength) of scientific collaborations.

Uddin, Shahadat; Hossain, Liaquat; Rasmussen, Kim

2013-01-01

206

Protecting the discipline: collaboration revisited.  

PubMed

Collaboration has become requisite for the funding of research by the federal government because of the complex nature of health problems facing the nation. This column will present ideas from the National Institute of Health, the Institute of Medicine, the National Institute of Nursing Research, and the American Association of Colleges of Nursing that confirm the need for collaboration. The terms multidisciplinary, interdisciplinary, and transdisciplinary research will be considered as they apply to successful nursing research in light of loosely coupled systems. Finally, suggestions for productive interdisciplinary research will be put forth for the reader's consideration. PMID:24085665

Florczak, Kristine L

2013-10-01

207

The case for interdisciplinary collaboration.  

PubMed

With the complexity of modern societal and health issues, and with the knowledge explosion and concomitant escalation of specialization and fragmentation, interdisciplinary collaboration and teamwork will take on ever-increasing importance in the years ahead. For cooperation to become a generally accepted policy, there needs to be full understanding of interdisciplinarity and what promotes or hinders it. Resocialization, training, and new skills will be required of educators, practitioners, and administrators. Only then will faculty participate in and teach, practitioners practice, and institutions support interdisciplinary collaboration. PMID:2682537

Mariano, C

208

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

2010-01-01

209

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

2010-01-01

210

Collaboration and Knowledge: How do corporations create knowledge through collaboration?  

Microsoft Academic Search

Focus on knowledge in business creates new ways of exchanging knowledge through systems, processes, and infrastructures. New technologies, workflow processing systems, and knowledge portals play key roles in supporting the exchange of knowledge through collaboration. As a result, knowledge management appears to be nearing mainstream. However, even organizations with aggressive knowledge management programs consider themselves ineffective users of existing corporate

Scott Haggerty

211

Collaborative double robust targeted maximum likelihood estimation.  

PubMed

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

2010-05-17

212

Expressiveness of Equational Type Logic.  

National Technical Information Service (NTIS)

Equational type logic is an extension of (conditional) equational logic, that widens 'equational reasoning' towards 'reasoning with equations and type assignments'. A comparison is made with other extensions of equational logic, such as (conditional) equa...

V. Manca A. Salibra G. Scollo

1991-01-01

213

Measuring and Estimating GFR and Treatment Effect in ADPKD Patients: Results and Implications of a Longitudinal Cohort Study  

PubMed Central

Trials failed to demonstrate protective effects of investigational treatments on glomerular filtration rate (GFR) reduction in Autosomal Dominant Polycystic Kidney Disease (ADPKD). To assess whether above findings were explained by unreliable GFR estimates, in this academic study we compared GFR values centrally measured by iohexol plasma clearance with corresponding values estimated by Chronic Kidney Disease Epidemiology Collaboration (CKD-Epi) and abbreviated Modification of Diet in Renal Disease (aMDRD) formulas in ADPKD patients retrieved from four clinical trials run by a Clinical Research Center and five Nephrology Units in Italy. Measured baseline GFRs and one-year GFR changes averaged 78.6±26.7 and 8.4±10.3 mL/min/1.73 m2 in 111 and 71 ADPKD patients, respectively. CKD-Epi significantly overestimated and aMDRD underestimated baseline GFRs. Less than half estimates deviated by <10% from measured values. One-year estimated GFR changes did not detect measured changes. Both formulas underestimated GFR changes by 50%. Less than 9% of estimates deviated <10% from measured changes. Extent of deviations even exceeded that of measured one-year GFR changes. In ADPKD, prediction formulas unreliably estimate actual GFR values and fail to detect their changes over time. Direct kidney function measurements by appropriate techniques are needed to adequately evaluate treatment effects in clinics and research.

Cannata, Antonio; Carrara, Fabiola; Cella, Claudia; Ferrari, Silvia; Stucchi, Nadia; Prandini, Silvia; Ene-Iordache, Bogdan; Diadei, Olimpia; Perico, Norberto; Ondei, Patrizia; Pisani, Antonio; Buongiorno, Erasmo; Messa, Piergiorgio; Dugo, Mauro; Remuzzi, Giuseppe

2012-01-01

214

The Community Collaboration Stakeholder Project  

ERIC Educational Resources Information Center

|Today's increasingly complex and diverse world demands 21st century communication skills to solve community and social justice problems. Interorganizational collaboration is at the heart of much community activism, such as that focused on solving environmental disputes, eradicating racially discriminating real estate practices, and bringing early…

Heath, Renee Guarriello

2010-01-01

215

Collaborative Research in Mental Health  

Microsoft Academic Search

This paper describes advantages and disadvantages of the National Institute of Mental Health's program for Public Academic Liaison (PAL). Useful administrative lessons gleaned from longstanding connections between state mental health agencies and universities in Ohio, Virginia, and Oregon are reviewed. Important issues such as budgeting and staffing for both agency and university administrators to consider when establishing collaboration are outlined.

Bentson H. McFarland; Frederick A. DiBlasio; John R. Belcher

1993-01-01

216

Mobile collaborative medical display system.  

PubMed

Because of recent advances in wireless communication technologies, the world of mobile computing is flourishing with a variety of applications. In this study, we present an integrated architecture for a personal digital assistant (PDA)-based mobile medical display system that supports collaborative work between remote users. We aim to develop a system that enables users in different regions to share a working environment for collaborative visualization with the potential for exploring huge medical datasets. Our system consists of three major components: mobile client, gateway, and parallel rendering server. The mobile client serves as a front end and enables users to choose the visualization and control parameters interactively and cooperatively. The gateway handles requests and responses between mobile clients and the rendering server for efficient communication. Through the gateway, it is possible to share working environments between users, allowing them to work together in computer supported cooperative work (CSCW) mode. Finally, the parallel rendering server is responsible for performing heavy visualization tasks. Our experience indicates that some features currently available to our mobile clients for collaborative scientific visualization are limited due to the poor performance of mobile devices and the low bandwidth of wireless connections. However, as mobile devices and wireless network systems are experiencing considerable elevation in their capabilities, we believe that our methodology will be utilized effectively in building quite responsive, useful mobile collaborative medical systems in the very near future. PMID:18177976

Park, Sanghun; Kim, Wontae; Ihm, Insung

2008-01-04

217

Outcomes and Global ICT Collaboration  

Microsoft Academic Search

The substantial globalization that IT innovation in the mid-1990's produced needs to be evaluated as to outcomes. Before the interconnectedness that Internet allowed, international collaboration occurred infrequently. After about 1995, international interaction became a regular occurrence and cooperation across national boundaries became a purposive technique for achieving results. Issues of backward local culture confronting global values were personally resolved and

Charles Mitchell

218

Collaborative Partnerships to Achieve Equity  

Microsoft Academic Search

The collaborative partnership between most campus laboratory schools and their university or college department of education differs from campus to campus. The dual purpose of this partnership is to provide an education to school aged children as well as to provide college education majors an opportunity to observe and teach in a laboratory environment. The focus on inclusion and providing

Jeremy Winters; Craig Rice; Cindy Cliche

2011-01-01

219

Architectural patterns for collaborative applications  

Microsoft Academic Search

There is currently little reuse of either design or code in the development of collaborative applications. Though there are some application frameworks for this domain, they tend to be rather inflexible in the functionality they offer. This paper seeks to provide design reuse in the form of architectural patterns that focus on low-level horizontal issues: distribution, message exchange, functional decomposition,

Peter Tandler

2006-01-01

220

Indigenous Continuance: Collaboration and Syncretism  

ERIC Educational Resources Information Center

In this keynote address, the author talks about Indigenous peoples who are presently in a dynamic circumstance of constant change that they are facing courageously with creative collaboration and syncretism. In the address, the author speaks "of" an Indigenous consciousness and he speaks "with" an Indigenous consciousness so that Indigenous…

Ortiz, Simon J.

2011-01-01

221

Content-Boosted Collaborative Filtering  

Microsoft Academic Search

Most recommender systems use Collaborative Filtering or Content-based methods to predict new items of interest for a user. While both methods have their own advantages, individually they fail to provide good recommendations in many situations. Incorporating components from both methods, a hybrid recommender system can overcome these shortcomings. In this paper, we present an elegant and effective framework for combining

Prem Melville; Raymond J. Mooney; Ramadass Nagarajan

2001-01-01

222

Protocol for Collaborative Multimedia Presentations  

Microsoft Academic Search

Many multimedia presentation applications involve retrieval of objects from more than one collaborating server. For instance, we can consider distributed video servers where blocks of movies are distributed over a set of servers. Here, blocks of a movie from different video servers have to be retrieved and presented con- tinuously without any gaps in the presentation. Such applications first need

Eenjun Hwang; B. Prabhakaran

2000-01-01

223

Collaborative Test Reviews: Student Performance  

ERIC Educational Resources Information Center

|A group study method proved helpful in improving senior-level students' performance on unit tests through collaborative learning. Students of a History of Textiles course voluntarily attended study sessions to review course content and prepare for unit tests. The students who attended the group reviews scored better on tests than those who did…

Bhatia, Anuradha; Makela, Carole J.

2010-01-01

224

PRACTICAL STATISTICS FOR COLLABORATIVE STUDIES  

Technology Transfer Automated Retrieval System (TEKTRAN)

Collaborative, or ring, studies are frequently performed by analytical chemists as a means to document the precision of quantitative procedures. In the cereals community, this may be a gravimetric, titrimetric, amperometric, or physical procedure to measure the concentration of a naturally occurrin...

225

Indigenous Continuance: Collaboration and Syncretism  

ERIC Educational Resources Information Center

|In this keynote address, the author talks about Indigenous peoples who are presently in a dynamic circumstance of constant change that they are facing courageously with creative collaboration and syncretism. In the address, the author speaks "of" an Indigenous consciousness and he speaks "with" an Indigenous consciousness so that Indigenous…

Ortiz, Simon J.

2011-01-01

226

Actor Interdependence in Collaborative Telelearning.  

ERIC Educational Resources Information Center

|This paper presents a model of collaborative telelearning and describes how coordination theory has provided a framework for the analysis of actor (inter)dependencies in this scenario. The model is intended to inform the instructional design of learning scenarios, the technological design of the telelearning environment, and the design of…

Wasson, Barbara; Bourdeau, Jacqueline

227

COLLABORATIVE PROJECTS - A GLOBAL SURVEY  

Microsoft Academic Search

Collaborative projects between educational institutions and external partners seem to be popular ways to prepare industrial design and design engineering students for professional practice. Such projects are set up all over the world and this paper describes the result of a survey that focus on the practice and experience from 12 such educations covering several continents. Teachers and study managers

Kaare Eriksen

228

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.

2000-01-01

229

Collaborative Learning in Engineering Design.  

ERIC Educational Resources Information Center

|Described is a capstone experience for undergraduate biomedical engineering students in which student teams work with children and adults with cerebral palsy to produce devices that make their lives easier or more enjoyable. The collaborative approach, benefits to the clients, and evaluation of the projects are discussed. (CW)|

Newell, Sigrin

1990-01-01

230

The dynamics of collaborative design  

Microsoft Academic Search

The University of Colorado at Denver's Internet Task Force has been conducting developmental research on the collaborative learning and participatory design process while creating and implementing the School of Education's Web page and mediated learning environment. We developed a design and learning process model that is appropriate for designers working in groups in academic or corporate environments. Critical features are

Lorraine C. Sherry; Karen Madsen Myers

1998-01-01

231

Collaborative visualization for military planning  

NASA Astrophysics Data System (ADS)

So that a military commander has precise command, control, and planning information available for a given mission, information must be tailored for a particular area of operation, for a specific level of command, and for a specific time period. The commander must be able to quickly understand the information, query related information, and analyze the information in collaboration with others to plan and control a military operation. To provide such tailored information, we envision an environment in which customized agents traverse a diverse, distributed, frequently changing information space to identify relevant data. Once aware of the data, visual interfaces facilitate understanding and navigation. Geographically separated users manipulate a customized view to access a common information framework in which they can interactively collaborate with other users. We propose an architecture for achieving this vision that is well suited to implementation with Jini networking technologies. As a first step toward achieving this architecture we have developed a collaborative visualization framework that enables multiple distributed users to interact using shared visual interface components while simultaneously communicating via a text-based chat window. Our framework provides communications management and messaging support and well-defined Java class interfaces for integrating visualization components. Initial results indicate significant benefits for application development through reuse and extensibility. We achieved interactive performance and synchronized collaboration using JavaSpaces as the underlying distributed technology.

Jacobs, Timothy; Butler, Sean

2001-07-01

232

Incremental coordination in collaborative networks  

Microsoft Academic Search

We developed an incremental coordination technique for collaborative networks based on necessary and sufficient coordinability conditions that we proposed earlier for locally controlled hierarchies of dynamic systems. Efficiency of the technique is illustrated by mathematical modelling of a two-level control system for a network of linear objects. The modelling has proved that usage of local control and coordination widens the

Alexander Fridman; Olga Fridman

2010-01-01

233

The Funding of Academic Collaborations  

ERIC Educational Resources Information Center

To leverage expertise and efficiencies in implementing educational technologies, higher education leaders often create centralized service organizations or inter-institutional partnerships. Defined as "academic collaborations," these organizations foster inter-institutional partnerships that share resources to increase institutional capacity for,…

Michelau, Demaree K.; Poulin, Russell

2008-01-01

234

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

235

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

1998-01-01

236

Collaborative Learning through Wireless Grids  

Microsoft Academic Search

In this paper, we describe wireless grids, an emerging technology that enables ad hoc sharing of resources (such as screen, services and microphone) on edge devices (such as mobile Internet devices, laptops and mobile phones). As wireless devices have become common, and “smart,” wireless grids have become practical. To highlight the capabilities of wireless grids to support collaborative learning, projects

Angela Usha Ramnarine-Rieks; Lee W. McKnight; Ruth V. Small

2011-01-01

237

Managing the Collaborative Learning Environment.  

ERIC Educational Resources Information Center

The feature story in this issue, "Managing the Collaborative Learning Environment," focuses on the growing emphasis on teamwork in the workplace. It discusses how the concept of empowering employees in the workplace is evolving and the benefits--faster decision making, lower costs and absenteeism, higher productivity and quality, and increased…

Wagner, June G.

2002-01-01

238

Characters in stories of collaboration  

Microsoft Academic Search

Purpose – The purpose of this paper is to explore the ways in which narratives of collaborations tagged as successful may be constructed around common characterizations of participants, in order to provide insights to the ways in which stories may be constructed as vehicles for the adoption or adaptation of good or promising practices. Design\\/methodology\\/approach – Qualitative interview data from

Nic Beech

2008-01-01

239

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…

Beatty, Ken; Nunan, David

2004-01-01

240

The Vocabulary Problem in Collaboration  

Microsoft Academic Search

Previous research in information science and in human-computer interaction has shown that people tend to use different terms to describe a similar concept. Due to the unique backgrounds, training, and experiences of different people, the chance of two collaborators using the same term to describe a concept or an object for a common task is quite low. This vocabulary difference

Hsinchun Chen

241

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

2011-01-01

242

Privacy in Collaboration: Managing Impression  

Microsoft Academic Search

The great promise of collaborative technologies that improve group awareness and communication is often overshadowed by accompanying privacy concerns. In such systems, the privacy concerns relate to the individuals one interacts with - colleagues, superiors, subordinates, friends and family. Using Instant Messaging as an example, we illustrate that addressing privacy issues in such systems can be quite challenging. Based on

Sameer Patil; Alfred Kobsa

2005-01-01

243

Mystery Boxes: Uncertainty and Collaboration  

NSDL National Science Digital Library

This lesson teaches students that scientific knowledge is fundamentally uncertain. Students manipulate sealed mystery boxes and attempt to determine the inner structure of the boxes which contain a moving ball and a fixed barrier or two. The nature and sources of uncertainty inherent in the process of problem-solving are experienced. The uncertainty of the conclusions is reduced by student collaboration.

Beard, Jean

244

Collaborative filtering on skewed datasets  

Microsoft Academic Search

Many real life datasets have skewed distributions of events when the probability of observing few events far exceeds the others. In this paper, we observed that in skewed datasets the state of the art collaborative filtering methods perform worse than a simple probabilistic model. Our test bench includes a real ad click stream dataset which is naturally skewed. The same

Somnath Banerjee; Krishnan Ramanathan

2008-01-01

245

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

2007-01-01

246

Collaborative filtering with collective training  

Microsoft Academic Search

Rating sparsity is a critical issue for collaborative filtering. For example, the well-known Netflix Movie rating data contain ratings of only about 1% user-item pairs. One way to address this rating sparsity problem is to develop more effective methods for training rating prediction models. To this end, in this paper, we introduce a collective training paradigm to automatically and effectively

Yong Ge; Hui Xiong; Alexander Tuzhilin; Qi Liu

2011-01-01

247

Online Clustering for Collaborative Filtering  

Microsoft Academic Search

We study two online clustering methods for collaborative fil tering. In the first method, we assume that each user is equally likely to belong to one of clusters of users and that the user's rating for each item is g enerated randomly according to a distribution that depends on the ite m and the cluster that the user belongs to.

Wee Sun Lee

248

Collaborating in Electronic Learning Communities  

ERIC Educational Resources Information Center

There are obvious differences between face-to-face instruction and learning and online instruction and learning. Although collaboration and community building do occur in the campus classroom, as does active learning, it is imperative in an online class. Students today will reluctantly attend classes that consist entirely of faculty lectures and…

Miller, Ava S.

2009-01-01

249

Preparing Preservice Teachers for Collaboration.  

ERIC Educational Resources Information Center

|Describes one aspect of a teacher-education model at California State University, Fullerton that encourages collaboration among credential students and site teachers to promote reflection on teaching and learning. The demonstration-application lesson cycle incorporates cooperative planning and peer coaching to improve students' teaching and help…

Yopp, Hallie Kay; Guillaume, Andrea M.

1999-01-01

250

Clustering Methods for Collaborative Filtering  

Microsoft Academic Search

Grouping people into clusters based on the items they have pur- chased allows accurate recommendations of new items for purchase: if you and I have liked many of the same movies, then I will prob- ably enjoy other movies that you like. Recommending items based on similarity of interest (a.k.a. collaborative filtering) is attractive for many domains: books, CDs, movies,

Lyle H. Ungar; Dean P. Foster

1998-01-01

251

Interpretation of Bernoulli's Equation.  

ERIC Educational Resources Information Center

|Discusses Bernoulli's equation with regards to: horizontal flow of incompressible fluids, change of height of incompressible fluids, gases, liquids and gases, and viscous fluids. Provides an interpretation, properties, terminology, and applications of Bernoulli's equation. (MVL)|

Bauman, Robert P.; Schwaneberg, Rolf

1994-01-01

252

Fractional Schrödinger equation.  

PubMed

Some properties of the fractional Schrödinger equation are studied. We prove the Hermiticity of the fractional Hamilton operator and establish the parity conservation law for fractional quantum mechanics. As physical applications of the fractional Schrödinger equation we find the energy spectra of a hydrogenlike atom (fractional "Bohr atom") and of a fractional oscillator in the semiclassical approximation. An equation for the fractional probability current density is developed and discussed. We also discuss the relationships between the fractional and standard Schrödinger equations. PMID:12513557

Laskin, Nick

2002-11-18

253

Delay Differential Equations  

Microsoft Academic Search

\\u000a In this chapter, applications of group analysis to delay differential equations are considered. Many mathematical models in\\u000a biology, physics and engineering, where there is a time lag or aftereffect, are described by delay differential equations.\\u000a These equations are similar to ordinary differential equations, but their evolution involves past values of the state variable.\\u000a \\u000a \\u000a For the sake of completeness the chapter

Yurii Grigoriev; Nail Ibragimov; Vladimir Kovalev; Sergey Meleshko

254

Solution of Maxwell's equations  

Microsoft Academic Search

A numerical approach for the solution of Maxwell's equations is presented. Based on a finite difference Yee lattice the method transforms each of the four Maxwell equations into an equivalent matrix expression that can be subsequently treated by matrix mathematics and suitable numerical methods for solving matrix problems. The algorithm, although derived from integral equations, can be considered to be

Michael Bartsch; Micha Dehler; Martin Dohlus; Frank Ebeling; Peter Hahne; Reinhard Klatt; Frank Krawczyk; Michaela Marx; Zhang Min; Thomas Pröpper; Dietmar Schmitt; Petra Schütt; Bernhard Steffen; Bernhard Wagner; Thomas Weiland; Susan G. Wipf; Heike Wolter

1992-01-01

255

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.

2011-01-01

256

The Fractional Cable Equation  

Microsoft Academic Search

Recently, we derived a fractional Nernst-Planck equation for electrodiusion of ions in neurons for the case of anomalous subdiusion. This equation was subsequently simplied by assuming small ionic concentration gradients and diering material properties for the neuron and the surrounding membrane. The resulting linear fractional cable equation was shown to involve two fractional temporal derivatives. In this letter we give

T. A. M. Langlands; B. I. Henry

257

The Statistical Drake Equation  

Microsoft Academic Search

We provide the statistical generalization of the Drake equation.From a simple product of seven positive numbers, the Drake equation is now turned into the product of seven positive random variables. We call this “the Statistical Drake Equation”. The mathematical consequences of this transformation are then derived. The proof of our results is based on the Central Limit Theorem (CLT) of

Claudio Maccone

2010-01-01

258

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) ...

Ball, Mrs.

2012-09-13

259

The Pendulum Equation  

ERIC Educational Resources Information Center

We investigate the pendulum equation [theta] + [lambda][squared] sin [theta] = 0 and two approximations for it. On the one hand, we suggest that the third and fifth-order Taylor series approximations for sin [theta] do not yield very good differential equations to approximate the solution of the pendulum equation unless the initial conditions are…

Fay, Temple H.

2002-01-01

260

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.

2009-01-01

261

Fostering Collaborative Learning in Videoconferencing: the influence of content schemes and collaboration scripts on collaboration outcomes and individual learning outcomes  

Microsoft Academic Search

Videoconferencing is expected to become increasingly important for tele?learning environments. This study investigates how to foster collaborative learning through videoconferencing. A collaborative teaching scenario was selected as the learning environment, which required the learners to teach one another theories. In this study, the effects of different types of support for this collaboration were investigated. The main focus is on how

Bernhard Ertl; Markus Reiserer; Heinz Mandl

2005-01-01

262

Collaboration in the square: an architecture for collaborative ubicomp  

Microsoft Academic Search

This paper presents an architecture and software infrastructure for collaborative ubiquitous systems based around the EQUIP data sharing system. A peer-to-peer approach is used between mobile systems, such that peers are discovered and messages are passed between different system components without the need for a central server. Each peer system has a common compo- nent-based architecture which supports 'probes' which

Barry Brown; Ian MacColl; Marek Bell; Matthew Chalmers

263

Tutorial on Balancing Equations  

NSDL National Science Digital Library

Dr. Yue-Ling Wong of the Wake Forest University Computer Science Department maintains the online Tutorial on Balancing Equations. Students interactively get to choose the types of atoms in a methane, ethane, propane, and ethanol equation; enter the atom counts for the equation and the product; and then attempt to balance the equation. The program tells you if you are right or wrong and gives the right answers whenever you request them. Twelve other more advance chemical equations are available as well, making the site more than just a Web programming example. In all, it's a good learning tool for introductory chemistry students.

Wong, Yue-Ling.

1998-01-01

264

Supersymmetric nonlocal gas equation  

SciTech Connect

In this paper we study systematically the question of supersymmetrization of the nonlocal gas equation. We obtain both the N=1 and the N=2 supersymmetric generalizations of the system which are integrable. We show that both the systems are bi-Hamiltonian. While the N=1 supersymmetrization allows the hierarchy of equations to be extended to negative orders (local equations), we argue that this is not the case for the N=2 supersymmetrization. In the bosonic limit, however, the N=2 system of equations lead to a new coupled integrable system of equations.

Das, Ashok; Popowicz, Z. [Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627-0171 (United States); Institute of Theoretical Physics, University of Wroclaw, pl. M. Borna 9, 50-205 Wroclaw (Poland)

2005-08-01

265

Control and Cohesion: Collaborative Learning and Writing.  

ERIC Educational Resources Information Center

Describes a collaborative writing assignment devised for a first-year composition class. Outlines how the assignment was undertaken and carried out by the students. Provides background on the theoretical literature concerning collaborative writing. (HB)

Hillebrand, Romana P.

1994-01-01

266

Toward an Understanding of Multicommunity Collaboration.  

National Technical Information Service (NTIS)

The report presents case study analysis of multicommunity collaboration in three midwestern areas--Nebraska, Michigan, and Alberta, Canada. Although the multicommunity collaboration strategy shows promise and has theoretical and intuitive support, the str...

A. C. Jansen B. A. Cigler J. C. Stabler V. D. Ryan

1994-01-01

267

Improved Neighborhood-based Collaborative Filtering  

Microsoft Academic Search

Recommender systems based on collaborative filtering predi ct user preferences for products or services by learning past user- item re- lationships. A predominant approach to collaborative filte ring is neighborhood based (\\

Robert M. Bell; Yehuda Koren

2007-01-01

268

Head Start/EPSDT Collaboration Evaluation.  

National Technical Information Service (NTIS)

This nontechnical report is based on the final report of the evaluation of the Head Start - Medicaid Early Periodic Screening, Diagnosis, and Treatment (EPSDT) Collaborative Effort. The collaborative effort, a demonstration project initiated in 1974 by th...

G. McMurray R. Sims

1976-01-01

269

Collaboration and Analyst System Effectiveness (CASE) Connect.  

National Technical Information Service (NTIS)

The goal was to develop effective computer-based support for collaborative intelligence analysis, with a particular focus on facilitating tacit collaboration. Our approach can be characterized as a 'Develop/Understand/Improve' cycle, where the 'Understand...

S. J. Sickels

2009-01-01

270

Transport equations in inhomogeneous semiconductors  

Microsoft Academic Search

A generalized equation for the transport of a physical quantity in inhomogeneous semiconductors is derived from the Boltzmann transport equation. The momentum and energy transport equations, obtained from this equation, extend the previous equations of Blotekjaer and Azoff to inhomogeneous semiconductors with nonparabolic band structure. The momentum transport equation is used tio derive a steady state electric current density equation

R. Kishore

1993-01-01

271

The Emerging Discipline of Collaborative Networks  

Microsoft Academic Search

The process of creating a new scientific discipline for collaborative networks is addressed in this paper. Collaborative networks\\u000a manifest in a large variety of forms, including virtual organizations, virtual enterprises, dynamic supply chains, professional\\u000a virtual communities, collaborative virtual laboratories, etc. A large body of empiric knowledge related to collaborative networks\\u000a is becoming available, but there is an urgent need to

Luis M. Camarinha-matos; Hamideh Afsarmanesh

2004-01-01

272

Conflict resolution in collaborative facility design  

Microsoft Academic Search

To increase design quality and to reduce design process development time, a computer-supported collaborative approach to facility design is mandatory. In computer-supported collaborative facility design, however, conflict situations, which result naturally from the interaction of cooperating designers, must be resolved. This research introduces a new method to resolve conflict situations that typically occur in collaborative facility design: (1) layout design,

Marco Antonio Lara Gracia

1999-01-01

273

Collaboration Tools for Global Software Engineering  

Microsoft Academic Search

Software engineering involves people collaborating to develop better software. Collaboration is challenging, especially across time zones and without face-to-face meetings. We therefore use collaboration tools all along the product life cycle to let us work together, stay together, and achieve results together. This article summarizes experiences and trends chosen from recent IEEE International Conference on Global Software Engineering (IGSCE) conferences.

Filippo Lanubile; Christof Ebert; Rafael Prikladnicki; Aurora Vizcaíno

2010-01-01

274

Expanding Global Engineering Education Research Collaboration  

Microsoft Academic Search

Within many traditional disciplines, international collaborations have developed around specific research areas. But since engineering education research is a relatively new field of activity, few international research collaborations in this area have yet emerged. As engineering becomes more global, these types of collaborations are increasingly important, especially to promote continued innovation in engineering education and ensure the employability and mobility

B. Jesiek; M. Borrego; K. Beddoes

275

Collaborative networks: a new scientific discipline  

Microsoft Academic Search

Collaborative networks manifest in a large variety of forms, including virtual organizations, virtual enterprises, dynamic supply chains, professional virtual communities, collaborative virtual laboratories, etc. A large body of empiric knowledge related to collaborative networks is already available, but there is an urgent need to consolidate this knowledge and build the foundations for a more sustainable development of this area. The

Luis M. Camarinha-Matos; Hamideh Afsarmanesh

2005-01-01

276

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

1988-01-01

277

Implementing Collaborative Manufacturing with Intelligent Web Services  

Microsoft Academic Search

Collaborative manufacturing is a new paradigm for the 21st century manufacturing. This paper proposes a service oriented integration framework based on emerging technologies including software agents and Web services. A software prototype system has been implemented to demonstrate how the proposed service oriented integration framework could be used to establish a dynamic collaborative environment for inter-enterprise collaboration.

Weiming Shen; Yinsheng Li; Qi Hao; Shuying Wang; Hamada Ghenniwa

2005-01-01

278

Virtual scholarly collaboration: a case study  

Microsoft Academic Search

Scholarly collaboration can certainly offer the potential to increase the productivity of scholars but can carry with it burdens and challenges not experienced by those who choose to write and publish individually. As scholarship itself becomes more complex the benefits of collaboration are likely to become more significant. Information technology can be used to facilitate scholarly collaboration over a distance

Bruce J. Neubauer; Gene A. Brewer

2004-01-01

279

Utilizing Collaboration Theory to Evaluate Strategic Alliances  

Microsoft Academic Search

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 assess it with certainty. Program evaluators can assist practitioners concerned with the

Rebecca Gajda

2004-01-01

280

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

2004-01-01

281

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

282

A Dimensionality Reduction Technique for Collaborative Filtering  

Microsoft Academic Search

Recommender systems make suggestions about products or services based on matching known or estimated preferences of users with properties of products or services (content- based), properties of other users considered to be similar (collaborative flltering), or some hybrid approach. Collaborative flltering is widely used in E-commerce. To generate accurate recommendations in collaborative flltering, the properties of a new user must

A. M. Roumani; D. B. Skillicorn

2006-01-01

283

Collaborating on the Internet and Intranets  

Microsoft Academic Search

Collaborative StrategiesTM surveyed 100 Fortune 1000 firms in the USA on the use of Internet tools. The study also focused on how these organizations are using Internet and intranet tools to support electronic collaboration today and their goals for the future. These interviews revealed several important trends: companies are collaborating more on intranets than on the Internet, IP networks will

David Coleman

1997-01-01

284

Supporting Collaborative Learning Activities with SCORM  

Microsoft Academic Search

This paper investigates the da ta e lements required to fully and flexibly s upport a b road range of collaborative learning activities and proposes extensions to the SCORM data model to enable support for collaborative learning de signs within SCORM. The ana lysis is partly based on a range of well established collaborative learning de signs that cannot be

Albert Ip; Ric Canale

2003-01-01

285

Distributed Software Development in the EPICS Collaboration  

Microsoft Academic Search

The Experimental Physics and Industrial Control System (EPICS) collaboration now consists of many accelerator, astronomy and particle detector projects. Many of these groups contribute code to the collaboration. The interest of the sponsoring laboratory is always the primary driver in decisions about developing new code. As a side affect of meeting the needs of a given project, the collaboration receives

Leo R. Dalesio; Martin Kraimer; William Watson; Matthias Clausen

1996-01-01

286

Toward a Comprehensive Theory of Collaboration  

Microsoft Academic Search

The Journal of Applied Behavioral Science presents two special issues in which nine research-based articles and two overviews address various theoretical and empirical perspectives on the process of collaboration and the forms of collaborative alliances. In the first overview, the articles are mapped onto six theoretical perspectives according to how they address the preconditions, process, and outcomes of collaboration. In

Donna J. Wood; Barbara Gray

1991-01-01

287

Learning during a collaborative final exam  

Microsoft Academic Search

Collaborative testing has been suggested to serve as a good learning activity, for example, compared to individual testing. The aim of the present study was to measure learning at different levels of knowledge during a collaborative final exam in a course in basic methods and statistical procedures. Results on pre- and post-tests taken individually (N = 30) before and after the collaborative

Örjan Dahlström

2012-01-01

288

Is Collaborative Learning Worth All the  

Microsoft Academic Search

Instructors investigating the effects of collaborative learning on algebra achievement found no significant differences in final exam grades or course grades for Intermediate Algebra students who engaged in collaborative activities and students who learned algebra in lecture-discussion classes. The authors discuss collaborative activities they adapted for use in their classes.

Jane M. Rousseau; Jeanette W. Glover

289

Collaboration: A Framework for School Improvement  

ERIC Educational Resources Information Center

|The ability to work collaboratively with others is becoming an essential component of contemporary school reform. This article reviews current trends in school reform that embody collaborative principles and also draws on the literature to provide a theoretical overview of collaboration itself. The article then outlines the findings from a…

Slater, Lorraine

2004-01-01

290

Construction of Shared Knowledge During Collaborative Learning  

Microsoft Academic Search

This study reports preliminary findings from a study that investigated (1) the kind and extent of shared knowledge constructed after collaborative learning and (2) the relationship between the construction of shared knowledge and individual learning. In this study, college dyads collaborated to learn a biology concept. Preliminary findings showed that pairs shared similar mental models and knowledge pieces after collaborative

Heisawn Jeong; Michelene T. H. Chi

1997-01-01

291

Collaboration theory and community tourism planning  

Microsoft Academic Search

This paper applies the theoretical constructs of collaboration to tourism destinations and offers insight into interorganizational collaboration for one specific tourism domain, the planning and development of local, community-based tourism destinations. Drawing primarily from the literature on interorganizational relations, the theoretical constructs of collaboration are discussed first. Challenges and considerations in the planning and development of local tourist destinations are

Tazim B. Jamal; Donald Getz

1995-01-01

292

Exploring tourism as a collaborative activity  

Microsoft Academic Search

While tourism presents considerable potential for the use of new mobile technologies, we currently have little understanding of how tourists organise their activities or of the problems they face. This paper discusses an ethnographic study of tourism focusing on its collaborative nature, and how this could be better supported with new technologies. Three types of collaboration are outlined: collaboration with

Barry Brown; Matthew Chalmers; Ian MacColl

293

Project-Based, Asynchronous Collaborative Learning  

Microsoft Academic Search

The value of collaboration as a tool to promote learning is becoming increasingly more evident. Students engaged in collaborative efforts typically retain the information being learned longer by becoming more actively engaged in the learning activity. There is evidence that collaborative activities foster higher-order thinking skills such as analytical reasoning, synthesis, and evaluation. Furthermore, students work in an environment that

William Hafner; Timothy J. Ellis

2004-01-01

294

An Application Server for Collaborative Work  

SciTech Connect

Remote collaboration involving development and execution of applications is currently difficult. Joint remote data visualization is often carried out through file transfers followed by separate viewing without coordination or collaborative capability. Joint editing of files, as is needed for code development or document generation, is also difficult. Additionally, asynchronous collaboration capabilities are needed.

Dr. Stevetiana Shasharina sveta@txcorp.com

2000-09-04

295

Collaboration, Dialogue, and Human-Robot Interaction  

Microsoft Academic Search

Teleoperation can be improved if humans and robots work as partners, exchanging information and assisting one another to achieve common goals. In this paper, we discuss the importance of collaboration and dialogue in human-robot systems. We then present collaborative control, a system model in which human and robot collaborate, and describe its use in vehicle teleoperation.

Terrence Fong; Charles Baur

2002-01-01

296

Collaboration, Dialogue, Human-Robot Interaction  

Microsoft Academic Search

Abstract. Teleoperation can be improved if humans and robots work as partners, exchanging information and assisting one another to achieve common,goals. In this paper, we discuss the importance of collaboration and dialogue in human-robot systems. We then present collaborative control, a system model in which human and robot collaborate, and describe its use in vehicle teleoperation.

Terrence Fong; Charles E. Thorpe; Charles Baur

2001-01-01

297

Collaborative knowledge management supporting mars mission scientists  

Microsoft Academic Search

This paper describes the design and deployment of a collaborative software tool, designed for and presently in use on the Mars Exploration Rovers (MER) 2003 mission. Two central questions are addressed. Does collaborative content like that created on easels and whiteboards have persistent value? Can groups of people jointly manage collaboratively created content? Based on substantial quantitative and qualitative data

Irene Tollinger; Michael McCurdy; Alonso H. Vera; Preston Tollinger

2004-01-01

298

Studying research collaboration using co-authorships  

Microsoft Academic Search

Scientific collaboration has become a major issue in science policy. The tremendous growth of collaboration among nations and research institutions witnessed during the last twenty years is a function of the internal dynamics of science as well as science policy initiatives. The need to survey and follow up the collaboration issue calls for statistical indicators sensitive enough to reveal the

G. Melin; O. Persson

1996-01-01

299

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.

2012-01-01

300

Collaborative Networks: A New Scientific Discipline  

Microsoft Academic Search

Collaborative networks manifest in a large variety of forms, including virtual organizations, virtual enterprises, dynamic supply chains, professional virtual communities, collaborative virtual laboratories, etc. A large body of empiric knowledge related to collaborative networks is becoming available, but there is an urgent need to consolidate this knowledge and build the foundations for sustainable and solid research and development in this

Luis M. Camarinha-Matos; Hamideh Afsarmanesh

301

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…

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

2010-01-01

302

Proposal of a Collaborative Learning Standardization  

Microsoft Academic Search

This paper reports on considerations and steps towards standardization (2) of the collaborative learning environment. This standardization will extend and widen the field of applications possible within the collaborative learning paradigm, and will make possible the usage of the fruits of years of research and individual implementations of the concept of collaborative learning, from our own laboratory and from others.

Toshio Okamoto; Mizue Kayama; Alexandra I. Cristea

2001-01-01

303

S & T COLLABORATION: A QUANTITATIVE STUDY  

Microsoft Academic Search

Collaboration pattern amongst the Scientists have been already consented as a major indicator of scientific progress. Many studies have been reported on collaborative issues in different disciplines across the world. All these reports have established the fact that there is an increas- ing tendency of collaborative writing, especially among the Scientists. It is a complex social phe- nomenon in research

G. Krishnamoorthy; A. Amudhavalli; K. Balu

304

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)

2011-03-14

305

Service Orchestration for Collaboration Patterns  

Microsoft Academic Search

This article describes a structuring of groupware\\u000aservices that allows end users to orchestrate the provided\\u000aservices in order to match their collaboration patterns. Our\\u000aapproach is based on the notion that different forms of\\u000acollaboration require different combinations of groupware\\u000aservices, and that these provided services are the most\\u000aimportant aspect of a groupware system for its users. Based

ROBERT SLAGTER; MARGIT BIEMANS; VAL JONES

2005-01-01

306

ATBC Study - Research Collaboration Procedures  

Cancer.gov

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.

307

Collaborative Treatment of Eating Disorders  

Microsoft Academic Search

\\u000a Experts agree that the most effective treatment of children with eating disorders is multisystem based and combines the expertise\\u000a of several disciplines. Specialists in pediatrics, internal medicine, endocrinology, psychology, psychiatry, and nutrition,\\u000a for example, may collaborate with one another at various relevant points in the course of treatment. Eating disorders, unique\\u000a among mental\\/emotional conditions, influence a child’s development in broad,

Marla M. Sanzone

308

Distributed Scalable Collaborative Filtering Algorithm  

Microsoft Academic Search

\\u000a Collaborative filtering (CF) based recommender systems have gained wide popularity in Internet companies like Amazon, Netflix,\\u000a Google News, and others. These systems make automatic predictions about the interests of a user by inferring from information\\u000a about like-minded users. Real-time CF on highly sparse massive datasets, while achieving a high prediction accuracy, is a\\u000a computationally challenging problem. In this paper, we

Ankur Narang; Abhinav Srivastava; Naga Katta

309

Collaboration with DiamondTouch  

Microsoft Academic Search

We study the performance of collaborative spatial\\/visual tasks under dieren t input congurations. The congurations used are a traditional mouse-monitor, a shared-monitor with multiple-mice, and a multi-user input device (DiamondTouch). Our experiments indicate that there is a signican t variation in performance for the dieren t congura- tions with pairs of users, while there is no such variation with individual

Stephen G. Kobourov; Kyriacos Pavlou; Justin Cappos; Michael Stepp; Mark Miles; Amanda Wixted

2005-01-01

310

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.

2008-07-28

311

Developing Adaptive Collaboration Support: The Example of an Effective Training for Collaborative Inferences  

ERIC Educational Resources Information Center

|Adaptive support for computer-mediated collaboration aims at supporting learners' collaboration in a way that is tailored to their actual needs and by fostering their self-regulation, leading to the acquisition of new collaboration skills. This review gives an example of developing support for a specific collaboration skill: the co-construction…

Deiglmayr, Anne; Spada, Hans

2010-01-01

312

When Collaborative Is Not Collaborative: Supporting Student Learning through Self-Surveillance  

ERIC Educational Resources Information Center

|Collaborative learning has been widely endorsed in education. This qualitative research examines instances of collaborative learning during mathematics that were seen to be predominantly non-collaborative despite the pedagogical efforts and intentions of the teacher and the task. In an effort to disrupt the non-collaborative learning, small…

Kotsopoulos, Donna

2010-01-01

313

Maxwellians and the Remaking of Maxwell's Equations  

NASA Astrophysics Data System (ADS)

Although James Clerk Maxwell first formulated his theory of the electromagnetic field in the early 1860s, it went through important changes before it gained general acceptance in the 1890s. Those changes were largely the work of a group of younger physicists, the Maxwellians, led by G. F. FitzGerald in Ireland, Oliver Lodge and Oliver Heaviside in England, and Heinrich Hertz in Germany. Together, they extended, refined, tested, and confirmed Maxwell's theory, and recast it into the set of four vector equations known ever since as ``Maxwell's equations.'' By tracing how the Maxwellians remade and disseminated Maxwell's theory between the late 1870s and the mid-1890s, we can gain a clearer understanding not just of how the electromagnetic field was understood at the end of the 19th century, but of the collaborative nature of work at the frontiers of physics.

Hunt, Bruce

2012-02-01

314

Understanding the collaborative-participatory design.  

PubMed

In this study, the role of collaboration in design is discussed, placing emphasis on how to include end-users in the development process. The study is based on a literature review focusing on aspects of collaboration in design, usability and human factors. Thereby, it introduces, compares and contrasts the characteristics of both collaborative and user-centered design perspectives, leading to the collaborative-participatory design approach. Finally, the advantages, disadvantages and precautions of implementing collaborative and participatory models are pointed out. PMID:22317129

Scariot, Cristiele A; Heemann, Adriano; Padovani, Stephania

2012-01-01

315

E-goverment collaboration work model based on collaboration agent middleware  

Microsoft Academic Search

In the application of the e-government, Aim at the problem of the current collaboration model, adopt mobile agent technology to solve collaboration work in e-government; In order to make up for the problem that the collaboration elements support not enough in traditional agent technology, proposed a kind of e-government collaboration work model based on collaboration agent middleware. According to the

Gang Zhou

2012-01-01

316

Expressiveness of Equational Type Logic.  

National Technical Information Service (NTIS)

Equational type logic is an extension of (conditional) equational logic, that widens 'equatorial reasoning' towards 'reasoning with equations and type assignments'. A comparison study with other extensions of equational logic such as (conditional) equatio...

V. Manca A. Salibra G. Scollo

1990-01-01

317

But--Let's Not Overlook the Ethics of Collaboration.  

ERIC Educational Resources Information Center

This discussion of ethical issues in the practice of teacher collaboration linking special and regular education considers reasons for collaboration, student placement, classroom diversity and teacher stress, confidentiality, the effectiveness of collaborative interventions, and teacher attitudes and successful collaboration. (DB)

Gable, Robert A.; And Others

1993-01-01

318

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.

Murray, Michael

2012-01-01

319

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

2003-07-14

320

Isobaric multiplet width equation.  

National Technical Information Service (NTIS)

The isobaric multiplet width equation is verified in the light of recent experimental information on masses and widths. The verification is carried out for the known level widths and the results came in support of the isobaric width equation removing all ...

A. M. Awin

1991-01-01

321

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 ...

Ball, Mrs.

2012-09-14

322

Linear Equations: Equivalence = Success  

ERIC Educational Resources Information Center

|The ability to solve linear equations sets students up for success in many areas of mathematics and other disciplines requiring formula manipulations. There are many reasons why solving linear equations is a challenging skill for students to master. One major barrier for students is the inability to interpret the equals sign as anything other…

Baratta, Wendy

2011-01-01

323

The Drake Equation revisited  

Microsoft Academic Search

In the almost half century since the Drake Equation was first conceived, a number of profound discoveries have been made that require each of the seven variables of this equation to be reconsidered. The discovery of hydrothermal vents on the ocean floor, for example, as well as the ever-increasing extreme conditions in which life is found on Earth, suggest a

Gregory Konesky

2009-01-01

324

Refinements to Drake's equation  

Microsoft Academic Search

It is argued that Drake's equation for estimating the number of communicative intelligent communities in the Galaxy is an oversimplification because it limits attention to the way in which life arose in the solar system. A modified equation is proposed which contains a sum of terms allowing for different paths to communicative life. Other refinements are discussed for taking account

R. N. Bracewell

1976-01-01

325

Macroscopic Transport Equations.  

National Technical Information Service (NTIS)

The macroscopic transport equations, necessary for the description of plasmas as fluids are derived in a way which emphasizes their origin in the kinetic theory. The equations of conservation of mass, of momentum, and of energy, are obtained from a genera...

J. A. Bittencourt

1979-01-01

326

A generalized transport equation  

Microsoft Academic Search

We study a generalized transport equation of the type where A is a strictly positive operator on L(?). Using ideas originally introduced by Beals, Larsen-Habetler, Hangelbroek and Lekkerkerker, we analyze this equation according to standard Case singular eigenfunction theory and prove existence and uniqueness of solutions for infinite and semi-infinite media.

P. F. Zweifel

1982-01-01

327

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

2008-09-24

328

On the Diophantine equation  

NASA Astrophysics Data System (ADS)

This paper discusses an integral solution (a, b, c) of the Diophantine equations x3n+y3n = 2z2n for n >= 2 and it is found that the integral solution of these equation are of the form a = b = t2, c = t3 for any integers t.

Zahari, N. M.; Sapar, S. H.; Mohd Atan, K. A.

2013-04-01

329

Coupled spring equations  

Microsoft Academic Search

Coupled spring equations for modelling the motion of two springs with weights attached, hung in series from the ceiling are described. For the linear model using Hooke's Law, the motion of each weight is described by a fourth-order linear differential equation. A nonlinear model is also described and damping and external forcing are considered. The model has many features that

Temple H. Fay; Sarah Duncan Graham

2003-01-01

330

Parameterised boolean equation systems  

Microsoft Academic Search

Boolean equation system are a useful tool for verifying formulas from modal mu-calculus on transition systems (see (18) for an excellent treatment). We are interested in an extension of boolean equation systems with data. This allows to formulate and prove a substantially wider range of properties on much larger and even infinite state systems. In previous works (11, 15) it

Jan Friso Groote; Tim A. C. Willemse

2005-01-01

331

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.

2006-06-01

332

Equations shorten pipe collapse calculations  

SciTech Connect

The API suggests collapse pressure equations for long, perfectly round, steel oil field casing, tubing, drill pipe, and line pipe. Operating and service company engineers can substitute two pipe collapse pressure equations for the 12 API equations now in general use. The shorthand results are almost the same as those from the API equations. The shorthand method has the additional advantage of allowing units from any measurement system. The API equations restrict calculations to US units only. The equation box lists the API (Equations 1--12) and the shorthand (Equations 13--14) equations. The API equations are based on work started shortly after the turn of the century.

Avakov, V.A. [Halliburton Energy Services, Duncan, OK (United States)

1995-04-10

333

Measuring competence: collaboration for safety.  

PubMed

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

2012-12-01

334

Collaborative virtual environments art exhibition  

NASA Astrophysics Data System (ADS)

This panel presentation will exhibit artwork developed in CAVEs and discuss how art methodologies enhance the science of VR through collaboration, interaction and aesthetics. Artists and scientists work alongside one another to expand scientific research and artistic expression and are motivated by exhibiting collaborative virtual environments. Looking towards the arts, such as painting and sculpture, computer graphics captures a visual tradition. Virtual reality expands this tradition to not only what we face, but to what surrounds us and even what responds to our body and its gestures. Art making that once was isolated to the static frame and an optimal point of view is now out and about, in fully immersive mode within CAVEs. Art knowledge is a guide to how the aesthetics of 2D and 3D worlds affect, transform, and influence the social, intellectual and physical condition of the human body through attention to psychology, spiritual thinking, education, and cognition. The psychological interacts with the physical in the virtual in such a way that each facilitates, enhances and extends the other, culminating in a "go together" world. Attention to sharing art experience across high-speed networks introduces a dimension of liveliness and aliveness when we "become virtual" in real time with others.

Dolinsky, Margaret; Anstey, Josephine; Pape, Dave E.; Aguilera, Julieta C.; Kostis, Helen-Nicole; Tsoupikova, Daria

2005-03-01

335

[Practice of international collaborations in Southeast Asia].  

PubMed

Leprosy Research Center is engaged in the international collaborative research project since 1989. The project was consists of two parts. One part is the JICA training course which has been practiced since 1989. Another part is the international collaborative research which was started in Indonesia in the year 1991. Author has participated in this project since 1998. Then, we started collaboration with various organizations including Pakistan, Vietnam, and Myanmar. The contents of the collaborative research were mainly technical assistances for leprosy diagnosis and we have trained young doctors, staff to conduct serological diagnosis and molecular biological diagnosis of leprosy. The projects between the countries were succesful. Throughout the collaboration with foreign countries, author felt strongly that one of most important things in such collaboration was better communication and relation between people having different cultural background. PMID:21941836

Kai, Masanori

2011-09-01

336

Learning through collaboration: the NEXus consortium as a winning collaborative.  

PubMed

The Nursing Education Exchange (NEXus) is a consortium of academic doctoral programs in nursing, initiated in response to a national shortage of well-qualified nurse educators and the need to increase the number of doctoral faculty in nursing programs across the United States. The vision for the consortium was to use distance-accessible delivery methods to provide rural nurse educators and clinical nurses with access to quality doctoral programs in nursing while remaining in their home environments. In addition, smaller or newly established doctoral programs would be able to offer a wider variety of elective coursework without recruiting and hiring additional faculty, further decreasing their limited available resources. This article describes the initiation and implementation of a successful nursing education collaborative that has gained increasing influence across the country and is recognized by its acronym, NEXus. PMID:23330591

Komnenich, Pauline; Hayes, Janice S; Magilvy, Kathy; McNeil, Paula A

2013-01-22

337

Nonlinear gyrokinetic equations  

SciTech Connect

Nonlinear gyrokinetic equations are derived from a systematic Hamiltonian theory. The derivation employs Lie transforms and a noncanonical perturbation theory first used by Littlejohn for the simpler problem of asymptotically small gyroradius. For definiteness, we emphasize the limit of electrostatic fluctuations in slab geometry; however, there is a straight-forward generalization to arbitrary field geometry and electromagnetic perturbations. An energy invariant for the nonlinear system is derived, and various of its limits are considered. The weak turbulence theory of the equations is examined. In particular, the wave kinetic equation of Galeev and Sagdeev is derived from an asystematic truncation of the equations, implying that this equation fails to consider all gyrokinetic effects. The equations are simplified for the case of small but finite gyroradius and put in a form suitable for efficient computer simulation. Although it is possible to derive the Terry-Horton and Hasegawa-Mima equations as limiting cases of our theory, several new nonlinear terms absent from conventional theories appear and are discussed.

Dubin, D.H.E.; Krommes, J.A.; Oberman, C.; Lee, W.W.

1983-03-01

338

Collaborative Decision Support for Layered Sensor Webs  

Microsoft Academic Search

Collaborative decision support is critical to providing the warfighter much-needed Universal situational awareness (USA) and a better understanding of information flowing from complex sensor webs. USA requires the ability to rapidly correlate sensor data and provide easy-to-understand collaborative decision support tools. The design knowledge company (TDKC) is currently developing the XTM collaborative argumentation toolkit (XCAT) for the air force research

E. Loomis; J. Walrath

2008-01-01

339

Choosing Business Collaborators Using Computing Intelligence Methods  

Microsoft Academic Search

Inter-firm collaboration has become a common feature of the developing international economy. Firms as well as the nations\\u000a have more relationships with each other. Even relatively closed economies or industries are becoming more open, Australia\\u000a and China are examples of this case. The benefits generated from collaboration and the motivations to form collaboration are\\u000a investigated by some researchers. However, the

Yu Zhang; Sheng-bo Guo; Jun Hu; Ann Hodgkinson

2008-01-01

340

Exploring collaborative problem solving in adulthood  

Microsoft Academic Search

Collaborative problem solving occurs in situations in which two or more individuals cooperate in appraising, representing,\\u000a and solving a variety of cognitive tasks. Collaborative groups are the context for much everyday cognitive activity in adulthood.\\u000a Collaboration has been explored as a means through which older adults may maintain high levels of performance, perhaps compensating\\u000a for individual-level cognitive and neurological decline.

Roger A. Dixon; Diane P. Fox; Lee Trevithick; Rebecca Brundin

1997-01-01

341

Collaboration of NGOs and business in Poland  

Microsoft Academic Search

Purpose – The paper is devoted to cross-sector collaborative bonds appearing in Poland in the last years. The general purpose of the paper is to draw a picture of existing collaboration between NGOs and business organizations in Poland. Particularly, its purpose is to research the conditions and characteristics in which Polish profit and non-profit organizations establish the collaborative bonds. Design\\/methodology\\/approach

Janusz Reichel; Agata Rudnicka

2009-01-01

342

Sharing Viewpoints in Collaborative Virtual Environments  

Microsoft Academic Search

Abstract Inthis,paper ,we explore ,to what ,degree ,shared viewpoints,in three-dimensional ,collaborative virtual environments,enable effective collaboration. The paper applies research on shared,viewpoints and telepointers to 3Denvironments. A lightweight ,Java-based tool for creating,collaborative ,virtual ,environments ,was developed,and used in the study. The system is realized asan,application framework ,that can be customized ,to develop,new ,applications. We conducted ,a series ,of experiments,to assess ,the

Steven Valin; Andreea Francu; Helmuth Trefftz; Ivan Marsic

2001-01-01

343

Coordination processes in computer supported collaborative writing  

Microsoft Academic Search

In the COSAR-project a computer-supported collaborative learning environment enables students to collaborate in writing an argumentative essay. The TC3 groupware environment (TC3: Text Composer, Computer supported and Collaborative) offers access to relevant infor- mation sources, a private notepad, a chat facility including a chat history, and a shared word- processor. Planning tools for writing - a shared argumentation diagram for

Gijsbert Erkens; Jos G. M. Jaspers; Maaike Prangsma; Gellof Kanselaar

2005-01-01

344

Towards Coequal Authorization for Dynamic Collaboration  

Microsoft Academic Search

\\u000a In dynamic collaboration, participants oftentimes need to share resources with each other under the same criteria. However,\\u000a since each participant has its own authorization policies as a way of controlling resource access, their discrepancies make\\u000a such collaboration difficult. It is desired to develop a practical and automatic way to generate the collaborative policies\\u000a for coequal authorizations. In this paper, we

Yuqing Sun; Chen Chen

345

Students assessing their own collaborative knowledge building  

Microsoft Academic Search

We describe the design of a knowledge-building environment and examine the role of knowledge-building portfolios in characterizing\\u000a and scaffolding collaborative inquiry. Our goal is to examine collaborative knowledge building in the context of exploring\\u000a the alignment of learning, collaboration, and assessment in computer forums. The key design principle involved turning over\\u000a epistemic agency to students; guided by several knowledge-building principles,

Eddy Y. C. Lee; Carol K. K. Chan; Jan van Aalst

2006-01-01

346

Collaboration in Workplace Literacy: A Case Study  

Microsoft Academic Search

A case study of collaboration in workplace literacy was conducted. The aim of the case study was to document and analyze how a university-industry joint program can be made to work through the use of collaboration as a strategy. The case studied was based on the Wisconsin Program Model that called for labor-management-education partnerships. The processes of collaboration among the

Ching-Jung Yang

347

Nonsink dissolution rate equations.  

PubMed

In spite of the fact that film theory is based on severe assumptionss, it is shown to be a good working model. The Niebergall-Goyan equation, the Short-Sharkey-Rhodes equation, and the Pothisiri-Carstensen equation-all based on simple film theory-are shown to hold through 80-90% of the dissolutin process for p-hydroxybenzoic acid and sodium chloride, both at values below and above the amount necessary to saturate the dissolution medium. Deviations are attributed to experimental difficulties and to improper definition of monodisperseness rather than to the assumptions made in the theory. PMID:1185531

Patel, M; Carstensen, J T

1975-10-01

348

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.

Vu Bioengineering Ret Program, School O.; Mckelvey, Aubrey

2007-01-01

349

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

2011-10-01

350

Collaborative Planning Solutions: Using USMC Standard Collaboration Tools to Assist With Mission Planning and Execution.  

National Technical Information Service (NTIS)

This study provides a baseline on collaborative solutions and tools, This thesis examines the current collaborative applications used within the United States Marine Corps (USMC). It demonstrates the strengths and weaknesses inherent to the current collab...

H. J. McKenna

2001-01-01

351

Student-Faculty Collaborations, Undergraduate Research, and Collaboration as an Administrative Model.  

ERIC Educational Resources Information Center

Discusses collaborative inquiry-based education (i.e., undergraduate research, scholarship, and creative activity) and collaborative administrative models, which point to ways of incorporating research and learning into a single integrated process. (EV)

Dotterer, Ronald L.

2002-01-01

352

The generalized Harry Dym equation  

NASA Astrophysics Data System (ADS)

The Harry Dym equation is generalized to the system of equations in the same manner as the Korteweg-de Vries equation is generalized to the Hirota-Satsuma equation. The Lax and Hamiltonian formulation for this generalization is given. This generalized Lax operator gives the hierarchy of equations also.

Popowicz, Ziemowit

2003-10-01

353

The Lamé wave equation  

Microsoft Academic Search

CONTENTS § 1. Introduction § 2. The Lamé wave functions § 3. Asymptotics of solutions of the Lamé wave equation in the complex plane § 4. Asymptotics of the spectrum and the Lamé wave functions References

M. V. Fedoryuk

1989-01-01

354

Parabolized Stability Equations.  

National Technical Information Service (NTIS)

The parabolized stability equations (PSE) are a new approach to analyze the streamwise evolution of single or interacting Fourier modes in weakly nonparallel flows such as boundary layers. The concept rests on the decomposition of every mode into a slowly...

T. Herbert

1994-01-01

355

Map Projection Equations.  

National Technical Information Service (NTIS)

Map projection equations in cartesian coordinates are derived for the most important mapping schemes. The important unifying principles of differential geometry are applied to produce the equal area, conformal and conventional projections. This report has...

F. Pearson

1977-01-01

356

Complex Maxwell's equations  

NASA Astrophysics Data System (ADS)

A unified complex model of Maxwell's equations is presented. The wave nature of the electromagnetic field vector is related to the temporal and spatial distributions and the circulation of charge and current densities. A new vacuum solution is obtained, and a new transformation under which Maxwell's equations are invariant is proposed. This transformation extends ordinary gauge transformation to include charge-current as well as scalar-vector potential. An electric dipole moment is found to be related to the magnetic charges, and Dirac's quantization is found to determine an uncertainty relation expressing the indeterminacy of electric and magnetic charges. We generalize Maxwell's equations to include longitudinal waves. A formal analogy between this formulation and Dirac's equation is also discussed.

I. Arbab, A.

2013-03-01

357

Gonihedric string equation  

NASA Astrophysics Data System (ADS)

Arguing that the equation for the gonihedric string should have a generalized Dirac form, we found a new equation which corresponds to a symmetric solution of the Majorana commutation relations and has a non-Jacobian form. The corresponding generalized gamma-matrices are anticommuting and guarantee unitarity at all orders of v/c. The previous solution was in a Jacobian form and admits unitarity at zero order. Explicit formulas for the mass spectrum lead to nonzero string tension M2j>=M2(j+1)2. The equation does not admit tachyonic solutions, but still has unwanted ghost solutions. We discuss also new dual transformation of the Dirac equation and of the proposed generalizations.

Savvidy, G. K.

1998-10-01

358

The ANS Collaboration Monitoring Program  

NASA Astrophysics Data System (ADS)

ANS Collaboration is a growing Italian network of small and medium size telescopes performing spectroscopy (low and medium resolution single dispersion, and Echelle high resolution modes) and UBVRC IC CCD photometry of symbiotic stars and novae mainly, but with interest also on other types of objects like optical transients, eclipsing binaries, X-ray source counterparts and on-call follow-up observations of selected targets from some surveys like IPHAS or RAVE. In the present form ANS started operations in 2005, and at the time of writing has logged on symbiotic stars 14602 photometric runs and a rich ensemble of low and high resolution, absolutely fluxed spectra. The paper describes the internal organization, operation modes and procedures, and presents sample data and performance statistics.

Munari, U.; Bacci, S.; Baldinelli, L.; Castellani, F.; Cetrulo, G.; Cherini, G.; Dallaporta, S.; Dallavia, G.; Englaro, A.; Frigo, A.; Graziani, M.; Luppi, V.; Maitan, A.; Marangoni, C.; Milani, A.; Moretti, S.; Moschini, F.; Ochner, P.; Siviero, A.; Righetti, G. L.; Tomaselli, S.; Tomasoni, S.; Vagnozzi, A.; Valisa, P.

359

Group Collaboration and Learning Through Online Assessments: Comparison of Collaborative and Participatory Online Exams  

Microsoft Academic Search

Online environments are regarded as well constructed to support collaborative and social learning. This research investigates\\u000a small group collaboration and learning in the context of online exams. Incorporating constructivism and collaborative learning\\u000a theories, the online Collaborative Exam features students’ active participation in various phases of the exam process through\\u000a small group activities. The online Participatory Exam features similar processes except

Jia Shen; Starr Roxanne Hiltz; Michael Bieber

2007-01-01

360

Simultaneous Linear Equations  

NSDL National Science Digital Library

This page presents simultaneous linear equations in three sections: Section 1 demonstrates the methods of addition and substitution; Section 2 presents more examples and Cramer's Rule; and Section 3 demonstrations how to solve a system of three equations in three unknowns. There are plenty of illustrations to help students understand and step-by-step methods of finding solutions. Solution steps are covered until they are moused over after a problem is presented.

Spector, Lawrence

2004-08-30

361

Differential equations V: Oscillations  

NSDL National Science Digital Library

To describe how oscillations are supported in systems of differential equations, we present a classic "Romeo and Juliet" picture of two-dimensional oscillations, and we analyze how trajectories change as nullclines are arranged at different angles in the phase plane. In addition to models based on traditional systems of differential equations, dynamical systems with time delays and dynamical systems with stochastic fluctuation (i.e. stochastic resonance) can also support oscillations.

Liao, David

362

Investigations of Sayre's Equation.  

NASA Astrophysics Data System (ADS)

Available from UMI in association with The British Library. Since the discovery of X-ray diffraction, various methods of using it to solve crystal structures have been developed. The major methods used can be divided into two categories: (1) Patterson function based methods; (2) Direct phase-determination methods. In the early days of structure determination from X-ray diffraction, Patterson methods played the leading role. Direct phase-determining methods ('direct methods' for short) were introduced by D. Harker and J. S. Kasper in the form of inequality relationships in 1948. A significant development of direct methods was produced by Sayre (1952). The equation he introduced, generally called Sayre's equation, gives exact relationships between structure factors for equal atoms. Later Cochran (1955) derived the so-called triple phase relationship, the main means by which it has become possible to find the structure factor phases automatically by computer. Although the background theory of direct methods is very mathematical, the user of direct-methods computer programs needs no detailed knowledge of these automatic processes in order to solve structures. Recently introduced direct methods are based on Sayre's equation, so it is important to investigate its properties thoroughly. One such new method involves the Sayre equation tangent formula (SETF) which attempts to minimise the least square residual for the Sayre's equations (Debaerdemaeker, Tate and Woolfson; 1985). In chapters I-III the principles and developments of direct methods will be described and in chapters IV -VI the properties of Sayre's equation and its modification will be discussed. Finally, in chapter VII, there will be described the investigation of the possible use of an equation, similar in type to Sayre's equation, derived from the characteristics of the Patterson function.

Shiono, Masaaki

363

Exact Lattice Boltzmann Equation  

NASA Astrophysics Data System (ADS)

The lattice Boltzmann equation is derived from the Bhatnagar-Gross-Krook kinetic equation using the Euler-Maclaurin integration formula. Unlike previous attempts to connect the lattice Boltzmann method with the kinetic theory, the result is free of any relaxation-type approximation. It shows that the conventional lattice Bhatnagar-Gross-Krook simulations of hydrodynamics belong to a parameter domain which is disconnected from the kinetic theory domain.

Bösch, F.; Karlin, I. V.

2013-08-01

364

Quantum transport equations  

Microsoft Academic Search

Summary  The response of an electron-phonon system to an electric field with arbitrary frequency is studied employing a quantum-mechanical\\u000a transport equation. Starting from the Fröhlich Hamiltonian in its second quantized form, the equations of motion of the electron\\u000a and phonon distribution functions and correlation functions in an electric field are derived. Taking into account the distinct\\u000a role of theweak electron-phonon interaction

A. Ron

1964-01-01

365

Generalized transport equation  

Microsoft Academic Search

A transport equation for the density operator of the Landau quasiparticle in the presence of a constant magnetic field is derived using the generalized self-consistent field (GSCF) method. An appropriate matrix representation in k--> space is introduced. The resulting transport equation for the Landau one-quasiparticle density matrix is gauge invariant and not restricted to the long-wavelength limit. In the long-wavelength

A. R. Vasconcellos; R. Luzzi

1974-01-01

366

Equations of Attack  

NSDL National Science Digital Library

Students will plot points on a coordinate grid to represent ships before playing a graphing equations game with a partner. Points along the y-axis represent cannons and slopes are chosen randomly to determine the line and equation of attacks. Students will have to use their math skills and strategy to sink their opponent's ships and win the game. After the game, an algebraic approach to the game is investigated.

Mathematics, Illuminations N.

2009-02-12

367

SIMULTANEOUS DIFFERENTIAL EQUATION COMPUTER  

DOEpatents

A description is given for an electronic simulator for a system of simultaneous differential equations, including nonlinear equations. As a specific example, a homogeneous nuclear reactor system including a reactor fluid, heat exchanger, and a steam boiler may be simulated, with the nonlinearity resulting from a consideration of temperature effects taken into account. The simulator includes three operational amplifiers, a multiplier, appropriate potential sources, and interconnecting R-C networks.

Collier, D.M.; Meeks, L.A.; Palmer, J.P.

1960-05-10

368

PCCR: Pancreatic Cancer Collaborative Registry  

PubMed Central

The Pancreatic Cancer Collaborative Registry (PCCR) is a multi-institutional web-based system aimed to collect a variety of data on pancreatic cancer patients and high-risk subjects in a standard and efficient way. The PCCR was initiated by a group of experts in medical oncology, gastroenterology, genetics, pathology, epidemiology, nutrition, and computer science with the goal of facilitating rapid and uniform collection of critical information and biological samples to be used in developing diagnostic, prevention and treatment strategies against pancreatic cancer. The PCCR is a multi-tier web application that utilizes Java/JSP technology and has Oracle 10 g database as a back-end. The PCCR uses a “confederation model” that encourages participation of any interested center, irrespective of its size or location. The PCCR utilizes a standardized approach to data collection and reporting, and uses extensive validation procedures to prevent entering erroneous data. The PCCR controlled vocabulary is harmonized with the NCI Thesaurus (NCIt) or Systematized Nomenclature of Medicine-Clinical Terms (SNOMED-CT). The PCCR questionnaire has accommodated standards accepted in cancer research and healthcare. Currently, seven cancer centers in the USA, as well as one center in Italy are participating in the PCCR. At present, the PCCR database contains data on more than 2,700 subjects (PC patients and individuals at high risk of getting this disease). The PCCR has been certified by the NCI Center for Biomedical Informatics and Information Technology as a cancer Biomedical Informatics Grid (caBIG®) Bronze Compatible product. The PCCR provides a foundation for collaborative PC research. It has all the necessary prerequisites for subsequent evolution of the developed infrastructure from simply gathering PC-related data into a biomedical computing platform vital for successful PC studies, care and treatment. Studies utilizing data collected in the PCCR may engender new approaches to disease prognosis, risk factor assessment, and therapeutic interventions.

Sherman, Simon; Shats, Oleg; Ketcham, Marsha A.; Anderson, Michelle A.; Whitcomb, David C.; Lynch, Henry T.; Ghiorzo, Paola; Rubinstein, Wendy S.; Sasson, Aaron R.; Grizzle, William E.; Haynatzki, Gleb; Feng, Jianmin; Sherman, Alexander; Kinarsky, Leo; Brand, Randall E.

2011-01-01

369

PCCR: Pancreatic Cancer Collaborative Registry.  

PubMed

The Pancreatic Cancer Collaborative Registry (PCCR) is a multi-institutional web-based system aimed to collect a variety of data on pancreatic cancer patients and high-risk subjects in a standard and efficient way. The PCCR was initiated by a group of experts in medical oncology, gastroenterology, genetics, pathology, epidemiology, nutrition, and computer science with the goal of facilitating rapid and uniform collection of critical information and biological samples to be used in developing diagnostic, prevention and treatment strategies against pancreatic cancer. The PCCR is a multi-tier web application that utilizes Java/JSP technology and has Oracle 10 g database as a back-end. The PCCR uses a "confederation model" that encourages participation of any interested center, irrespective of its size or location. The PCCR utilizes a standardized approach to data collection and reporting, and uses extensive validation procedures to prevent entering erroneous data. The PCCR controlled vocabulary is harmonized with the NCI Thesaurus (NCIt) or Systematized Nomenclature of Medicine-Clinical Terms (SNOMED-CT). The PCCR questionnaire has accommodated standards accepted in cancer research and healthcare. Currently, seven cancer centers in the USA, as well as one center in Italy are participating in the PCCR. At present, the PCCR database contains data on more than 2,700 subjects (PC patients and individuals at high risk of getting this disease). The PCCR has been certified by the NCI Center for Biomedical Informatics and Information Technology as a cancer Biomedical Informatics Grid (caBIG(®)) Bronze Compatible product. The PCCR provides a foundation for collaborative PC research. It has all the necessary prerequisites for subsequent evolution of the developed infrastructure from simply gathering PC-related data into a biomedical computing platform vital for successful PC studies, care and treatment. Studies utilizing data collected in the PCCR may engender new approaches to disease prognosis, risk factor assessment, and therapeutic interventions. PMID:21552494

Sherman, Simon; Shats, Oleg; Ketcham, Marsha A; Anderson, Michelle A; Whitcomb, David C; Lynch, Henry T; Ghiorzo, Paola; Rubinstein, Wendy S; Sasson, Aaron R; Grizzle, William E; Haynatzki, Gleb; Feng, Jianmin; Sherman, Alexander; Kinarsky, Leo; Brand, Randall E

2011-03-23

370

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

2009-01-01

371

Using Collaborative Web Sites to Overcome Barriers to Collaboration in Science and Engineering  

Microsoft Academic Search

Initial studies of how Collaborative Web Sites or CoWebs might enhance knowledge transfer between science and engineering classes showed an apparent barrier to student collaboration. This barrier appeared to be related to the culture of many engineering students. Here we investigate how projects that provide a perceived benefit from collaboration may be imple- mented in engineering classes using the CoWeb.

Peter Ludovice; Mathew Realff; Tom Morley; Mark Guzdial

2004-01-01

372

From Collaborative Technology to Collaborative Use of Technology: Designing Learning Oriented Infrastructures  

Microsoft Academic Search

In this paper, we argue that even if empirical studies of collaborative technology and learning represent a diversity of research, the cases that have successfully used collaborative technology share one very crucial thing, namely, instead of focusing intensively only on the technology, a great deal of effort has been put into collaborative use of technology and designing learning oriented infrastructure.

Lasse Lipponen; Jiri Lallimo

2004-01-01

373

Effective collaboration: deep collaboration as an essential element of the learning process  

Microsoft Academic Search

Collaboration is a frequently used term in current educational debates. However, the nature of collaboration and the possibilities it offers are often assumed among practitioners. Where it is dealt with as problematic, this tends to be at the operational level (Hargreaves 1992; O'Neill 2000). In this paper I argue that the process of collaboration is more complex than it may

George Head

2003-01-01

374

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.

375

Factorizability of Einstein'S Field Equations.  

National Technical Information Service (NTIS)

In the two-dimensional spinor formulation, the field equations of general relativity are shown not to factor. However, since the spinor field equations have an antisymmetric part, they have more content than the Einstein field equations.

H. G. Loos

1968-01-01

376

The Bernoulli-Poiseuille Equation.  

ERIC Educational Resources Information Center

|Describes Bernoulli's equation and Poiseuille's equation for fluid dynamics. Discusses the application of the combined Bernoulli-Poiseuille equation in real flows, such as viscous flows under gravity and acceleration. (YP)|

Badeer, Henry S.; Synolakis, Costas E.

1989-01-01

377

Resources for Coordination in Collaborative Telelearning  

Microsoft Academic Search

We have analyzed data from a field study in collaborative telelearning. The participants were students from three educational institutions in Norway. The goal of the study was to investigate how the students used a set of groupware tools to coordinate learning activities. We have used concepts from collaborative telelearning (Bourdeau & Wasson, 1997) and coordination mechanisms (Schmidt & Simone, 1996)

Rune Baggetun; Anders Mørch

378

Teaching Primary & Secondary Sources: An Earthshaking Collaboration  

ERIC Educational Resources Information Center

|Does history have to be boring and dry? Not if a person takes the familiar and adds an earthshaking twist! To begin the collaborative process, work with a willing teacher. This article talks about a teaching collaboration between the author as a library media specialist and Beth who was interested in literature circle titles for her 6th grade…

Gustafson, Chris

2006-01-01

379

Compliance, Cooperation, Collaboration and Information Literacy  

ERIC Educational Resources Information Center

|As academic institutions have devoted increased efforts to information literacy skills assessment, more opportunities for collaboration between the library and other campus organizations have developed. The authors describe their experiences concerning a collaborative project to revise a credit-bearing information literacy course. Theoretical…

Scales, Jane; Matthews, Greg; Johnson, Corey M.

2005-01-01

380

Collaboration between Higher Education, Business and Industry.  

ERIC Educational Resources Information Center

|Highlighting the growing interest in collaborative efforts, the author discusses the problems and challenges that have made cooperation necessary. He details the benefits of collaboration to higher education and to business/industry, and gives examples of local, regional, and national successes. (SK)|

Lapin, Joel D.

1983-01-01

381

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

2012-01-01

382

Virtual Teaming: Faculty Collaboration in Online Spaces  

ERIC Educational Resources Information Center

|This collaborative article chronicles the experiences of three faculty at three universities utilizing wiki technology to transform themselves and their students into a virtual team. Rooted in workplace approaches to distributed teaming, the project expands notions of classroom collaboration to include planning, administration, and assessment of…

Almjeld, Jen; Rybas, Natalia; Rybas, Sergey

2013-01-01

383

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.

Research, Wisconsin C.; Wisconsin-Madison, University O.

384

Cross-System Collaboration: Tools That Work.  

ERIC Educational Resources Information Center

This monograph reports on a collaborative initiative between Four Oaks, a private nonprofit family service agency in Iowa, and the Iowa Department of Human Services. The collaboration provided a series of community forums of local representatives to examine services available to delinquent youth and their families, to increase community awareness…

Hoel, James L.

385

Cross Course Collaboration in Undergraduate Sociology Programs  

ERIC Educational Resources Information Center

In this article, the authors describe a cross course collaborative research project designed to provide students with an opportunity to integrate aspects of sociological study that are typically addressed in a compartmentalized course by course manner. They used this approach on two separate occasions. The first involved collaboration between a…

Waltermaurer, Eve; Obach, Brian

2007-01-01

386

Messy Collaboration: Learning from a Learning Study  

ERIC Educational Resources Information Center

Messy collaboration refers to complexity, unpredictability and management dilemmas when educators work together. Such messiness was evident in a Hong Kong English Learning Study, a structured cyclical process in which teachers and researcher-participants from a teacher education institution work collaboratively on effective student learning. This…

Adamson, Bob; Walker, Elizabeth

2011-01-01

387

Design formalism for collaborative assembly design  

Microsoft Academic Search

Joints in product design are common because of the limitations of component geometric configurations and material properties, and the requirements of inspection, accessibility, repair, and portability. Collaborative product design is emerging as a viable alternative to the traditional design process. The collaborative assembly design (AsD) methodologies are needed for distributed product development. Existing AsD methodologies have limitations in capturing the

Kyoung-Yun Kim; Yan Wang; Obinna S. Muogboh; Bartholomew O. Nnaji

2004-01-01

388

Distributed knowledge sharing for collaborative product development  

Microsoft Academic Search

Product development is a knowledge-intensive activity in manufacturing enterprises. This paper analyses various forms of knowledge resources in the product development process and studies the representation scheme for them. Then a novel distributed knowledge sharing model is proposed for spreading and sharing knowledge among engineers in collaborative product development teams. In a collaborative team, engineers usually come from diverse disciplines;

Lu Zhen; Zuhua Jiang; Hai-Tao Song

2011-01-01

389

Supporting Collaborative Teams in Engineering Education  

Microsoft Academic Search

Problem-based learning techniques involving small collaborative teams of students are widely regarded as being effective in teaching engineering design courses. However, the heavy requirements upon the teaching staff to support and coordinate such teams typically limit these courses to small numbers of students. In this paper, we describe the design of a computer-based tool for supporting small collaborative teams, with

Francis C. Li; James A. Landay; Anthony D. Joseph

2001-01-01

390

Teacher Learning in Collaborative Curriculum Design  

ERIC Educational Resources Information Center

|The Interconnected Model of Professional Growth (Clarke & Hollingsworth, 2002) was used to identify processes of teacher learning during the collaborative design of curriculum materials in the context of curriculum innovation. Nine published studies from six different countries about teachers' collaborative curriculum design were analyzed to…

Voogt, J.; Westbroek, H.; Handelzalts, A.; Walraven, A.; McKenney, S.; Pieters, J.; de Vries, B.

2011-01-01

391

Learning to collaboratively design software systems  

Microsoft Academic Search

In a study conducted in 2004 we found that our students recognized the need to collaborate but that, due to inadequate communication skills, limited time and lack of experience and training in group work, the extent to which they collaborated was far less than they believed to be ideal. Since the advent of Web 2.0 we were interested to see

Debbie Richards; Andreas U. Kuswara

2009-01-01

392

How Collaborative Is Structural Family Therapy?  

ERIC Educational Resources Information Center

In response to the charge by "collaborative" therapies, such as solution focused and narrative, that structural family therapy is an aggressive, confrontational, and impositional approach, this investigation examines the role of therapist empathy in creating a collaborative partnership in structural family therapy. Twenty-four videotaped therapy…

Hammond, Ryan T.; Nichols, Michael P.

2008-01-01

393

Designing an interoperable infrastructure for synchronous collaboration  

Microsoft Academic Search

The use of synchronous groupware offers to collaborators similar advantages than face to face meeting. Regarding the design of systems of this kind, the most accurate middleware is the use of messages oriented middleware (MOM). One of the current issues which affects also to collaborative environments is interoperability. More concretely, the use of web service standards has gained its prominence

M. Antonia Martínez-carreras; A. Piqueras; M. A. Hernandez; Antonio F. Gómez-skarmeta

2007-01-01

394

Virtual Collaboration Environment for Aircraft Design  

Microsoft Academic Search

This paper presents a virtual collaboration environment for aircraft design. The presented system, abbreviated as VCEAD, provides virtual prototyping and communication features for synchronous collaboration between geographically distributed designers. Concurrent design reviews on large scale objects, such as aircraft fuselage, are possible over distance due to the technological choices of the system. These include XML, VRML and Java based solutions

Markus D. Durstewitz; Bernhard Kiefner; Reimund Kueke; Heikki Putkonen; Pertti Repo; Tuomo Tuikka

2002-01-01

395

Collaborative Physical Chemistry Projects Involving Computational Chemistry  

Microsoft Academic Search

The physical chemistry classes from three colleges have collaborated on two computational chemistry projects using Quantum CAChe 3.0 and Gaussian 94W running on Pentium II PCs. Online communication by email and the World Wide Web was an important part of the collaboration. In the first project, students used molecular modeling to predict benzene derivatives that might be possible hair dyes.

David M. Whisnant; Jerry J. Howe; Lisa S. Lever

2000-01-01

396

Distributed Context Management in Collaborative Environment  

Microsoft Academic Search

The context-awareness management is a challenging task in a distributed collaborative environment. This management implies the monitoring of the context information of collaborative users while adapting the responses of their requests according to their context. In this work, we distribute the context adaptation task among several entities by adopting the mobile agent paradigm. This leads to a distributed solution for

Yassine El Ghayam; Mohammed Erradi

2011-01-01

397

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…

Buzzeo, Toni

2004-01-01

398

Collaborative Concept Mapping Processes Mediated by Computer.  

ERIC Educational Resources Information Center

|This paper reports on a study that investigated group learning processes in computer-supported collaborative concept mapping. Thirty 5th grade Taiwanese students were selected to attend a computer-mediated collaborative concept mapping activity. Dialog messages and map products tracked and recorded by the mapping system were analyzed. The…

Chiu, Chiung-Hui; Wu, Wei-Shuo; Huang, Chun-Chieh

399

Leading Deep Conversations in Collaborative Inquiry Groups  

ERIC Educational Resources Information Center

|Collaborative inquiry groups, such as professional learning communities and lesson study groups, are proliferating in schools across the United States. In whatever form, the potential for impacting student learning through this collaborative work is expanded or limited by the nature of teachers' conversations. Polite, congenial conversations…

Nelson, Tamara Holmlund; Deuel, Angie; Slavit, David; Kennedy, Anne

2010-01-01

400

The affordances of media spaces for collaboration  

Microsoft Academic Search

In this paper, I discuss the affordances offered by media spaces for collaboration, contrasting their properties with those of the everyday medium and exploring the implications for perception and interaction. Collaboration is situated in a physical environment which supports or constrains the various forms social interactions might take. An analysis of the affordances of the environment - the properties that

William W. Gaver

1992-01-01

401

Knowledge-based assistants in collaborative engineering  

Microsoft Academic Search

Collaborative engineering requires the exchange and use of design information in a multidisciplinary team with time and space separations among the designers over the course of the design process. A challenge to effective collaboration is the delivery of existing knowledge to the time and place required. Upstream communication is necessary when participants later in the sequence, such as the construction

W. M. Kim Roddis

1998-01-01

402

Collaborative technologies for children with autism  

Microsoft Academic Search

The COSPATIAL (Communication and social participation: collaborative technologies for interaction and learning) project explores how we can develop effective and useful educational technologies in the form of shared active surfaces (SASs) and collaborative virtual environments (CVEs) to support the enhancement of social competence skills for children with autism spectrum conditions (ASC). This paper presents a description of the COSPATIAL suite

Laura Millen; Tessa Hawkins; Sue Cobb; Massimo Zancanaro; Tony Glover; Patrice L. Weiss; Eynat Gal

2011-01-01

403

Messy Collaboration: Learning from a Learning Study  

ERIC Educational Resources Information Center

|Messy collaboration refers to complexity, unpredictability and management dilemmas when educators work together. Such messiness was evident in a Hong Kong English Learning Study, a structured cyclical process in which teachers and researcher-participants from a teacher education institution work collaboratively on effective student learning. This…

Adamson, Bob; Walker, Elizabeth

2011-01-01

404

Common Ground. Feminist Collaboration in the Academy.  

ERIC Educational Resources Information Center

The fifteen articles in this anthology examine the process of collaboration as it fits into questions of gender. Articles include: "Educate, Organize, and Agitate: A Historical Overview of Feminist Collaboration in Great Britain and America, 1640-1930" (Melodie Andrews); "Beyond Feminism: An Intercultural Challenge for Transforming the Academy"…

Peck, Elizabeth G., Ed.; Mink, JoAnna Stephens, Ed.

405

Teaching collaborative software development: A case study  

Microsoft Academic Search

Software development is today done in teams of software developers who may be distributed all over the world. Software development has also become to contain more social aspects and the need for collaboration has become more evident. The importance of teaching development methods used in collaborative development is of importance, as skills beyond traditional software development are needed in this

Terhi Kilamo; Imed Hammouda; Mohamed Amine Chatti

2012-01-01

406

Collaboration within Large Groups in the Classroom  

ERIC Educational Resources Information Center

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

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

2011-01-01

407

Collaborative Research: A Tool for Overworked Faculty.  

ERIC Educational Resources Information Center

Describes and discusses the collaborative research relationship of three college faculty members, identifying factors that contributed to the team's success and looking at what the literature on collaborative teams offers to such an endeavor. Issues discussed include the quality and quantity of communication among members, group dynamics, and…

Rutherford, LeAne H.; Parry, Linda E.; Merrier, Patricia A.

1997-01-01

408

Architectures for Computer Supported Collaborative Learning  

Microsoft Academic Search

Four architectures for computer supported collaborative learning systems are analyzed using the model-view-controller design pattern and compared from the standpoints of coupling between activities of the users and suitability for educational use, as well as network load and ease of implementation. The architectures are illustrated with examples from the developmental history of Belvedere, an environment for collaborative construction of knowledge

Daniel D. Suthers

2001-01-01

409

Collaborative Play in World of Warcraft  

Microsoft Academic Search

Summary form only given. The author discusses play in World of Warcraft, a popular massively multiplayer online game. World of Warcraft enables self-organizing groups of strangers and friends to collaborate on short-term objectives. Such collaborations may reflect coming changes in globalized work in which we increasingly work with remote others we know little about. In game play, the glue that

Bonnie A. Nardi

2006-01-01

410

Peripheral Social Awareness Information in Collaborative Work.  

ERIC Educational Resources Information Center

Discusses being aware of other members of a team in a collaborative environment and reports on a study that examined group performance on a task that was computer mediated with and without awareness information. Examines how an awareness tool impacts the quality of a collaborative work effort and the communications between group members.…

Spring, Michael B.; Vathanophas, Vichita

2003-01-01

411

A flexible framework for online collaborative learning  

Microsoft Academic Search

This paper presents a framework for online collaborative learning, also known as telecollaboration. At the centre of this flexible framework are online collaborative educational experiences where knowledge creation and knowledge in action are the nexus of social, teaching and cognitive presence based on the Community of Inquiry model of Garrison, Anderson and Archers [Garrison, D.R., Anderson, T., and Archer, W.

Petrea Redmond; Jennifer V. Lock

2006-01-01

412

Consorting and Collaborating in the Education Marketplace.  

ERIC Educational Resources Information Center

This book describes one of the somewhat paradoxical consequences of the development of the education market place--the development of collaborative relations and infrastructures between competing institutions. Fourteen chapters written by participants in collaborative arrangements describe and analyze their responses to the market place and…

Bridges, David, Ed.; Husbands, Chris, Ed.

413

Describing and Enhancing Collaboration at the Computer.  

ERIC Educational Resources Information Center

|Describes research conducted with Hong Kong university students that investigated challenges to collaboration during computer-assisted instruction as evidenced by discourse. Evaluates videotapes of the students according to a set of discourse markers and suggests implications for software designers, teachers, and students to enhance collaboration

Beatty, Ken

2002-01-01

414

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

2007-01-01

415

Building the extended enterprise: key collaboration factors  

Microsoft Academic Search

Purpose – The purpose of this paper is to explore supply chain collaboration issues in the extended enterprise (EE) to develop a more complete understanding of the nature and effectiveness of collaboration in the transition towards, but also within, the EE paradigm. Design\\/methodology\\/approach – The paper presents results from a three-company case study focusing on the civil aerospace industry, with

Christos Braziotis; James Tannock

2011-01-01

416

Collaborating on Convergent Technologies: Education and Practice  

Microsoft Academic Search

Converging technologies will require collaboration across dis- ciplines. A good metaphor for such collaborations is the kind of trading zone that emerges whenever human beings from different cultures inter- act. NBIC must avoid trading zones that are dominated by one discipline or set of interests and instead encourage multiple stakeholders to form a shared mental model of what needs to

MICHAEL E. GORMAN

2004-01-01

417

Children's collaborative use of a computer microworld  

Microsoft Academic Search

This paper will discuss a framework and methodology for understanding the use of computers in collaborative learning. In particular, we are interested in how learning occurs when students work together using a computer microworld. Collaborative settings provide a particularly rich environment for studying learning. Many theorists (see Brown and Palinscar, in press) have proposed that learning occurs when students have

Janice Singer; Stephanie D. Behrend; Jeremy Roschelle

1988-01-01

418

Neurophysiologic Collaboration Patterns During Team Problem Solving  

Microsoft Academic Search

We have explored using neurophysiologic collaboration patterns as an approach for developing a deeper understanding of how teams collaborate when solving time-critical, complex real-world problems. Teams of three students solved substance abuse management simulations using IMMEX software while measures of mental workload (WL) and engagement (E) were generated by electroencephalography (EEG). Levels of high and low workload and engagement were

Ron Stevens; Trysha Galloway; Chris Berka; Marcia Sprang

2009-01-01

419

THE COLLABORATIVE COURSE: INNOVATIVE TEACHING AND LEARNING  

Microsoft Academic Search

Advances in information technology provide an opportunity for academic librarians and professors to offer innovative collaborative courses. The purpose of collaboration between a faculty member and a professional librarian is to integrate instruction in the course subject matter with bibliographic instruction. This integration promotes learning information acquisition skills and critical thinking, as well as the use of library resources. Research

Susan H. Anthes; Lawson Crowe

1991-01-01

420

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.

2011-01-01

421

MOBILITY SUPPORT FOR DISTRIBUTED COLLABORATIVE TEAMWORK  

Microsoft Academic Search

SUMMARY: Following the trend in computer and network architecture towards smaller and lighter devices that are more or less constantly connected to the Internet through wireless access networks, mobile computing has emerged as a promising means to improve the possibilities of distributed collaborative teamwork. However, the mobility support implemented in state of the art collaboration software has hitherto been rather

Mathias Johanson; Peter Törlind

422

Beyond Microblogging: Conversation and Collaboration via Twitter  

Microsoft Academic Search

The microblogging service Twitter is in the process of being appropriated for conversational interaction and is starting to be used for collaboration, as well. In an attempt to determine how well Twitter supports user-to-user exchanges, what people are using Twitter for, and what usage or design modifications would make it (more) usable as a tool for collaboration, this study analyzes

Courtenay Honeycutt; Susan C. Herring

2009-01-01

423

New Frontiers in Collaborative Collection Management  

Microsoft Academic Search

The authors provide a brief background of collaborative collection development efforts in libraries and describe ongoing, innovative projects to leverage the strength of collaboration across the VALE statewide academic library network in New Jersey to explore new methods of collection assessment, serials management, ebook collections development, and the pursuit of a shared virtual catalog.

Mary Mallery; Pamela Theus

2012-01-01

424

Cross Course Collaboration in Undergraduate Sociology Programs  

ERIC Educational Resources Information Center

|In this article, the authors describe a cross course collaborative research project designed to provide students with an opportunity to integrate aspects of sociological study that are typically addressed in a compartmentalized course by course manner. They used this approach on two separate occasions. The first involved collaboration between a…

Waltermaurer, Eve; Obach, Brian

2007-01-01

425

Web Based Electronic Marketplaces: Trading through Collaboration  

Microsoft Academic Search

This paper introduces the issues being addressed by electronic markets in the form of infrastructure, architecture and core functions. Supply chain management and the collaborative product development are also included here. Software providers and marketplace operators often summarise the two under the term e-collaboration. The core goal of the current analysis is to establish the significance and importance of the

Vlad Ingar Wietrzyk; Ingrid Wietrzyk; Bill Grosky

2005-01-01

426

A Collaborative Portal for Ocean Observatories  

Microsoft Academic Search

A Collaborative Ocean Observatory Portal (COOP) has been developed to enable distributed investigators to collaboratively operate ocean observatory systems. COOP is being created within the Autonomous Ocean Sampling Network program to support the Adaptive Sampling and Prediction (ASAP) field experiment that occurred in Monterey Bay in the summer of 2006. ASAP involved the day-to-day participation of a large group of

Michael A Godin; James G Bellingham; Kanna Rajan; Naomi Leonard; Yi Chao

2006-01-01

427

Networked Computers' Incorporated Role in Collaborative Learning  

Microsoft Academic Search

Networked computers are increasingly being used in collaborative learning. To understand what roles networked computers have in collaborative learning over distances, systems developers need conceptual frameworks that address the triadic complexity of knowledge construction, social interaction and technical issues. Some theoretical accounts of this relationship exits, but in terms of usefulness for systems design and how the role of networked

Annita Fjuk; Ole Smørdal

2001-01-01

428

Understanding Together: Sensemaking in Collaborative Information Seeking  

ERIC Educational Resources Information Center

|In recent years researchers have found that people often collaborate during information seeking activities. Collaborative information seeking (CIS) is composed of multiple different activities like seeking, sharing, understanding, and using information together. However, most studies of CIS have focused on how people find and retrieve information…

Paul, Sharoda A.

2010-01-01

429

Mass customisation as a collaborative engineering effort  

Microsoft Academic Search

From a collaborative engineering perspective, mass customization can be viewed as a series of activities, many of which are of engineering nature. The collaboration involves customers and manufacturers with different sets of priorities engage in interactive problem solving and joint conflict resolution to create products or services that best satisfy individual customers' needs while simultaneously meet manufacturers' economic objectives. Viewing

Songlin Chen; Yue Wang; Mitchell M. Tseng

2009-01-01

430

Collaboration in wartime France, 1940–1944  

Microsoft Academic Search

This paper deals with political as well as economic collaboration. It conceptualises collaboration as a form of cooperation with the occupying power that is – at least to a certain extent – voluntary and goes beyond the search for a pure modus vivendi. The aim of the paper is twofold. First, it presents a synopsis of the framework and central

Fabian Lemmes

2008-01-01

431

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…

Wilhelm, Jeffrey D., Ed.

2012-01-01

432

Understanding Together: Sensemaking in Collaborative Information Seeking  

ERIC Educational Resources Information Center

In recent years researchers have found that people often collaborate during information seeking activities. Collaborative information seeking (CIS) is composed of multiple different activities like seeking, sharing, understanding, and using information together. However, most studies of CIS have focused on how people find and retrieve information…

Paul, Sharoda A.

2010-01-01

433

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

2007-01-01

434

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

2003-01-01

435

Semantic Wiki Where Human and Agents Collaborate  

Microsoft Academic Search

A Wiki is a collaborative Web page authoring system. Users collaborate to build a Web site by creating and updating Wiki pages through Web browsers. However, conventional Wikis easily lose the consistency of the contents because a number of anonymous users can participate in authoring them. By introducing information agents that understand the. Wiki contents, we can keep the consistency.

Kensaku Kawamoto; Motohiro Mase; Yasuhiko Kitamura; Yuri A. Tijerino

2008-01-01

436

Japan-US collaboration in Nuclear Physics  

Microsoft Academic Search

I will mention some highlights from the history of Japan-US collaboration in Nuclear Physics. Although I have memories of my personal strong ties with many friends in US, I shall rather skip them, and focus on three major collaborative works which have made significant impacts on the developments of nuclear physics. The first one is the INS (Institute for Nuclear

Akito Arima

2009-01-01

437

Preparing Entry-Level Counselors for Collaboration  

ERIC Educational Resources Information Center

Over a period of 5 years, faculty members from the North Carolina State University's Counselor Education Program have integrated a curriculum enhancement to promote collaboration behaviors among program graduates across the master's degree options for training school, college, and community counselors. The School-College-Community Collaboration

Baker, Stanley B.; Grimmett, Marc A.; Cannon, Sharon McMillen; Ting, Siu-Man Raymond; Nassar-McMillan, Sylvia C.; Gerler, Edwin R.; Maxwell, Millie; Edwards-Joseph, Arline R. A. C.

2009-01-01

438

Laser Pointers as Collaborative Pointing Devices  

Microsoft Academic Search

Single Display Groupware (SDG) is a research area that focuses on providing collaborative computing environ- ments. Traditionally, most hardware platforms for SDG support only one person interacting at any given time, which limits collaboration. In this paper, we present laser pointers as input devices that can provide concurrent input streams ideally required to the SDG environment. First, we discuss several

Ji-Young Oh; Wolfgang Stuerzlinger

2002-01-01

439

Exploring the experiences of collaborative planning initiatives  

Microsoft Academic Search

Supply chain integration (or synchronisation) is to a large extent still only a promise, despite many considerable efforts by organisations and their customers and suppliers. Lack of visibility of true consumer demand and collaborative relationships based upon joint decision making remain significant barriers to the goal of supply chain integration. Collaborative planning, forecasting and replenishment (CPFR) is a strategy which

Mark Barratt; Alexander Oliveira

2001-01-01

440

Online CASE tool for collaborative software modelling  

Microsoft Academic Search

Traditional CASE tools are desktop-based, so they do not support online software collaboration. That is, they do not allow members of software project teams who are geographically distributed to collaborate and work together on software projects. This constrains software houses from tapping into global talent pools that can help reduce software costs and acquire needed expertise. Online CASE tools can

Louis Ling; Sellappan Palaniappan

2009-01-01

441

Flexible Mixture Model for Collaborative Filtering  

Microsoft Academic Search

This paper presents a flexible mixture model (FMM) for collaborative filtering. FMM extends existing partitioning\\/clustering algorithms for collaborative filtering by clustering both users and items together simultaneously without assuming that each user and item should only belong to a single cluster. Furthermore, with the introduction of 'preference' nodes, the proposed framework is able to explicitly model how users rate items,

Luo Si; Rong Jin

2003-01-01

442

Emerging Themes in Inter-firm Collaboration  

Microsoft Academic Search

Abstract Whether between individuals, work groups or organisations, it is widely accepted that collaboration plays an important role in the process of knowledge creation and maintenance. Management journals began reporting case study and other research results on collaboration between firms in the 1980’s. The early focus of these papers was on joint ventures and strategic alliances. More recently, research results

David Pender

443

DMC - Distributed and Mobile Collaboration Workshop Report  

Microsoft Academic Search

The increased need for people and organizations to continue collaborating whilst changing physical location and crossing organizational boundaries has resulted in a wave of new supporting technologies, and generated interest in tackling some of the difficult research issues arsing in such a context. The latter was the subject of the Third IEEE International Workshop on Distributed and Mobile Collaboration (DMC)

Schahram Dustdar; Harald Gall; Nikolay Mehandjiev; Samir Tata

2005-01-01

444

Possible Collaboration Perspectives in Astronomy Education  

Microsoft Academic Search

It is a question of international educational collaboration in the frame of IAU Commission 46. As astronomers are graduated by some Universities it will be useful joint discussion of collaboration perspectives: 1. Taking into account that in countries of former Soviet Union training Bachelors and Masters is began it is desirable working out consistent educational curriculums. 2. Consistent curriculums of

Salakhutdin Nuritdinov

2003-01-01

445

Measuring the effectiveness of collaboration technology  

Microsoft Academic Search

Collaboration technologies are seeing widespread adoption and implementation at all levels of organizations. However, managers and information technology professionals often have difficulty identifying the appropriate technology for their project teams. Another difficulty related to collaboration technology is demonstrating a measurable increase in performance to justify costs. Thus, there is a genuine interest in our community to find theories and methods

B. A. Reinig; D. L. Amoroso

2004-01-01

446

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

2008-01-01

447

Semantic multicast: intelligently sharing collaborative sessions  

Microsoft Academic Search

We introduce the concept of semantic multicast to implement a large-scale shared interaction infrastructure providing mechanisms for collecting, indexing, and disseminating the information produced in collaborative sessions. This infrastructure captures the interactions between users (as video, text, audio and other data streams) and promotes a philosophy of filtering, archiving, and correlating collaborative sessions in user and context sensitive groupings. The

Son Dao; Eddie C. Shek; Asha Vellaikal; Richard R. Muntz; Lixia Zhang; Miodrag Potkonjak; Ouri Wolfson

1999-01-01

448

Link prediction approach to collaborative filtering  

Microsoft Academic Search

Recommender systems can provide valuable services in a digital library environment, as demonstrated by its commercial success in book, movie, and music industries. One of the most commonly-used and successful recommendation algorithms is collaborative filtering, which explores the correlations within user-item interactions to infer user interests and preferences. However, the recommendation quality of collaborative filtering approaches is greatly limited by

Zan Huang; Xin Li; Hsinchun Chen

2005-01-01

449

Teacher Learning in Collaborative Curriculum Design  

ERIC Educational Resources Information Center

The Interconnected Model of Professional Growth (Clarke & Hollingsworth, 2002) was used to identify processes of teacher learning during the collaborative design of curriculum materials in the context of curriculum innovation. Nine published studies from six different countries about teachers' collaborative curriculum design were analyzed to…

Voogt, J.; Westbroek, H.; Handelzalts, A.; Walraven, A.; McKenney, S.; Pieters, J.; de Vries, B.

2011-01-01

450

Levels of Collaboration: Where Does Your Work Fit In?  

ERIC Educational Resources Information Center

|To collaborate is to share--to collaborate at different levels is to share the responsibility for learning with more and more input. In this article, the author lists the academic areas enhanced by collaboration; the characteristics of collaboration behaviors between educators; and the six elements of successful collaboration. She briefly…

Marcoux, Betty L.

2007-01-01

451

Leveraging Java Applets: Toward Collaboration Transparency in Java  

Microsoft Academic Search

Widespread use of the Internet is giving rise to the need for collaborative applications that link users at remote sites. Many toolkits support the development of collaboration-aware applications, those developed specifically for cooperative work by multiple users. Another approach is collaboration transparency, the collaborative use of applications originally developed for a single user. When the runtime environment supports collaboration transparency,

James Begole; Craig A. Struble; Clifford A. Shaffer

1997-01-01

452

Evolution profiles and functional equations.  

SciTech Connect

Time evolution is formulated and discussed in the framework of Schroeder's functional equation. The proposed method yields smooth, continuous dynamics without the prior need for local propagation equations.

Curtright, T.; Zachos, C.; High Energy Physics; Univ. of Miami

2009-01-01

453

Difference and Functional Equations  

NSDL National Science Digital Library

A short article designed to provide an introduction to functional equations, those in which a function is sought which is to satisfy certain relations among its values at all points. For example, we may look for functions satisfying f(x*y)=f(x)+f(y) and enquire whether the logarithm function f(x)=log(x) is the only solution. (It's not.) In some cases the nature of the answer is different when we insist that the functional equation hold for all real x, or all complex x, or only those in certain domains, for example. A special case involves difference equations, that is, equations comparing f(x) - f(x-1), for example, with some expression involving x and f(x). In some ways these are discrete analogues of differential equations; thus we face similar questions of existence and uniqueness of solutions, global behaviour, and computational stability. History; applications and related fields and subfields; textbooks, reference works, and tutorials; software and tables; other web sites with this focus.

Rusin, David J., 1957-

2007-12-17

454

The more you remember the more you decide: collaborative memory in adolescents with intellectual disability and their assistants.  

PubMed

The aim of the present study was to investigate collaborative memory in adolescents with intellectual disabilities when collaborating with an assistant, and also the extent to which decisiveness is related to individual memory performance. Nineteen students with intellectual disabilities (mean age=18.5, SD=0.9) each collaborated with a teaching assistant (mean age 40.3, SD=12.1) familiar from everyday work in school. Pictures were presented individually. Recognition was performed in two parts, first individually and thereafter collaboratively. The design involved 2 settings, one natural (with equal encoding time) and another with equal individual memory performance (assistants had shorter encoding time than the students). Results showed collaborative inhibition in this previously uninvestigated collaboration setting with adolescents with intellectual disabilities and their assistants. The assistants both performed higher and decided more than the students with intellectual disabilities in the natural setting, but not in the equated performance setting. Inhibition was larger in the equated setting. The assistants' decisiveness was moderately correlated with individual memory performance. Implications for everyday life are discussed. PMID:21269804

Danielsson, Henrik; Dahlström, Orjan; Andersson, Jan

2011-01-26

455

The differential equations on time scales through impulsive differential equations  

Microsoft Academic Search

In this paper we investigate differential equations on certain time scales with transition conditions (DETC) on the basis of reduction to the impulsive differential equations (IDE). DETC are in some sense more general than dynamic equations on time scales [M. Bohner, A. Peterson, Dynamic equations on time scales, in: An Introduction With Applications, Birkhäuser Boston, Inc., Boston, MA, 2001, p.

M. U. Akhmet; M. Turan

2006-01-01

456

Accumulative Equating Error after a Chain of Linear Equatings  

ERIC Educational Resources Information Center

|After many equatings have been conducted in a testing program, equating errors can accumulate to a degree that is not negligible compared to the standard error of measurement. In this paper, the author investigates the asymptotic accumulative standard error of equating (ASEE) for linear equating methods, including chained linear, Tucker, and…

Guo, Hongwen

2010-01-01

457

Evaluating Equating Results: Percent Relative Error for Chained Kernel Equating  

ERIC Educational Resources Information Center

This article presents a method for evaluating equating results. Within the kernel equating framework, the percent relative error (PRE) for chained equipercentile equating was computed under the nonequivalent groups with anchor test (NEAT) design. The method was applied to two data sets to obtain the PRE, which can be used to measure equating

Jiang, Yanlin; von Davier, Alina A.; Chen, Haiwen

2012-01-01

458

Regional Interagency Disaster Response Collaboration  

NASA Astrophysics Data System (ADS)

In affiliation with the "Great Worden Quake II" (GWQII) disaster preparedness exercise, the NASA Ames Research Center, Moffett Field California, the Air Force National Guard (ANG) 129th Rescue Wing, Moffett Field, California, and the Bay Area Automated Mapping Association,led by the IT group for the City of Walnut Creek, California, will engage in a technology transfer demonstration utilizing the collaborative environment developed for NASA's very successful wildfire mapping campaigns during the years 2006-2008. The aircraft platform will be the ANG C-130, a viable candidate to substitute for the Ikana UAV, which cannot fly from Ames because of FAA restrictions on UAV flights over populated areas. In this technology transfer demonstration, we will: (1) Prove, document and train Regional Fire departments how to link and use NASA real-time data with existing software (ESRI, IRRIS, etc). (2) Demonstrate how to access and use this data as a bridge between the real-time (3) Refine the questions and capabilities that would be involved and developed with this type of real-time data available This paper describes this exercise.

Moe, K.; Sullivan, D.; Butow, S.; Beilin, P.

2008-12-01

459

Multicenter breast cancer collaborative registry.  

PubMed

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

2011-08-31

460

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).

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

2011-01-01

461

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

2007-02-01

462

Complex PT-symmetric nonlinear Schrödinger equation and Burgers equation.  

PubMed

The complex -symmetric nonlinear wave models have drawn much attention in recent years since the complex -symmetric extensions of the Korteweg-de Vries (KdV) equation were presented in 2007. In this review, we focus on the study of the complex -symmetric nonlinear Schrödinger equation and Burgers equation. First of all, we briefly introduce the basic property of complex symmetry. We then report on exact solutions of one- and two-dimensional nonlinear Schrödinger equations (known as the Gross-Pitaevskii equation in Bose-Einstein condensates) with several complex -symmetric potentials. Finally, some complex -symmetric extension principles are used to generate some complex -symmetric nonlinear wave equations starting from both -symmetric (e.g. the KdV equation) and non- -symmetric (e.g. the Burgers equation) nonlinear wave equations. In particular, we discuss exact solutions of some representative ones of the complex -symmetric Burgers equation in detail. PMID:23509385

Yan, Zhenya

2013-03-18

463

Measuring Collaboration in Criminal Justice Problem Solving Projects.  

National Technical Information Service (NTIS)

Overall the results of the evaluation suggested that criminal justice agencies could collaborate effectively. The findings indicated that all five dimensions of collaboration did not need to be present for a successful collaboration. Specifically, it was ...

M. W. Downing

2005-01-01

464

The Influence of Learning Methods on Collaboration: Prior Repeated Retrieval Enhances Retrieval Organization, Abolishes Collaborative Inhibition, and Promotes Post-Collaborative Memory  

ERIC Educational Resources Information Center

|Research on collaborative memory has unveiled the counterintuitive yet robust phenomenon that collaboration impairs group recall. A candidate explanation for this "collaborative inhibition" effect is the disruption of people's idiosyncratic retrieval strategies during collaboration, and it is hypothesized that employing methods that improve one's…

Congleton, Adam R.; Rajaram, Suparna

2011-01-01

465

The Influence of Learning Methods on Collaboration: Prior Repeated Retrieval Enhances Retrieval Organization, Abolishes Collaborative Inhibition, and Promotes Post-Collaborative Memory  

ERIC Educational Resources Information Center

Research on collaborative memory has unveiled the counterintuitive yet robust phenomenon that collaboration impairs group recall. A candidate explanation for this "collaborative inhibition" effect is the disruption of people's idiosyncratic retrieval strategies during collaboration, and it is hypothesized that employing methods that improve one's…

Congleton, Adam R.; Rajaram, Suparna

2011-01-01

466

Equation of State from Lattice QCD Calculations  

SciTech Connect

We provide a status report on the calculation of the Equation of State (EoS) of QCD at finite temperature using lattice QCD. Most of the discussion will focus on comparison of recent results obtained by the HotQCD and Wuppertal-Budapest collaborations. We will show that very significant progress has been made towards obtaining high precision results over the temperature range of T = 150-700 MeV. The various sources of systematic uncertainties will be discussed and the differences between the two calculations highlighted. Our final conclusion is that these lattice results of EoS are precise enough to be used in the phenomenological analysis of heavy ion experiments at RHIC and LHC.

Gupta, Rajan [Los Alamos National Laboratory

2011-01-01

467

Lamé Equations with Finite Monodromy  

Microsoft Academic Search

In the first three chapters of this dissertation we give an introduction to the theory of ordinary linear differential equations with coeffcients in C(z). In particular we consider the case of Fuchsian differential equations. Classically one is interested in describing all Fuchsian equations whose solution spaces only consist of algebraic functions. Such equations are called algebraic. To each Fuchsian differential

H. A. van der Waall

2002-01-01

468

Equation of State of Nucleonic Matter  

NASA Astrophysics Data System (ADS)

The nuclear equation of state (EoS) is investigated by flow phenomena in relativistic heavy-ion collisions, both in transverse and radial direction, in comparison to experimental data from 150 A MeV to 11 A GeV. To this aim the collective dynamics of the nucleus--nucleus collision is described within a transport model of the coupled channel RBUU type. There are two factors which dominantly determine the baryon flow at these energies: the momentum dependence of the scalar (US) and vector potentials (U? ) for baryons and the resonance/string degrees of freedom for energetic hadron excitations. We fix the explicit momentum dependence of the nucleon--meson couplings by the nucleon optical potential up to 1 GeV and extrapolate to higher energy. When assuming the optical potential to vanish identically for Ekin ? 3.5 GeV we simultaneously describe the sideward flow data of the PLASTIC BALL, FOPI, EoS and E877 collaborations, the elliptic flow data of the E895 and E877 collaborations and approximately the rapidity and transverse mass distribution of protons at AGS energies without employing any explicit assumption on a phase transition in the EoS. However, the gradual change from hadronic to string degrees of freedom with increasing bombarding energy can be viewed as a transition from hadronic to string matter, i.e. a dissolution of hadrons at high energy density.

Cassing, W.

2000-02-01

469

Collaborative learning applied to fieldwork education.  

PubMed

SUMMARY Occupational therapists of the 21st century must be educated to provide intervention within health, education, community, and policy-making areas. Therapists need to solve complex problems, often in collaboration with numerous stakeholders. This article proposes that preparing occupational therapists for current practice requires a fundamental change in our educational beliefs and that a collaborative approach among students and fieldwork educators is most congruent with the interactive environments of current practice. The philosophical principles of collaborative learning are reviewed and practical considerations to apply the principles to Level II fieldwork programs are described. PMID:23944336

Cohn, Ellen S; Dooley, Nancy Robert; Simmons, Lynn A

2002-01-01

470

An evaluation of collaboration in environmental education  

NASA Astrophysics Data System (ADS)

This study examines the role collaboration can play in addressing current challenges and limitations in environmental education. The research literature suggests that one needed strategy in improving environmental education is the development of partnerships between formal and nonformal educators. Yet, one of the challenges to provider models of environmental education is the lack of connection between participating teachers and environmental education providers, resulting in a lack of commitment on the part of classroom teachers. This dissertation proposes that collaboration can play a major role in creating strong field based environmental education that has the commitment of classroom teachers. In 2001--2002, 21 teachers participated in LandPaths' In Our Own BackYard environmental education program. These teachers participated in a collaborative process that was designed to respond to teacher concern about a proposed change to the program. At the completion of the collaborative process teachers participated in an evaluation of the collaborative process. The aims of the evaluation were four-fold (a) to identify the features teachers felt established the process as collaboration and (b) to compare those features to a critical definition of collaboration, (c) to evaluate the success of the collaborative design, and (d) to assess the impact of the process on teacher commitment to the program. The results of the evaluation showed that the teachers identified three main elements that contributed to their feelings of collaboration, (a) they felt that they were working with the LandPaths staff in finding a solution to the problem, (b) the process was open and inclusive, and (c) they were making meaningful contributions to a credible process. The evaluation of the process showed that the collaborative process was appropriate for this situation particularly the element of meeting individually with teachers. Finally, most teachers articulated an increase in commitment to the environmental education program as a result of the collaborative process. Overall, this research demonstrates that collaboration is a valuable process in closing the gap between classroom teachers and environmental education providers and improving environmental education experiences.

Peticolas, Alison Brice

471

Student Collaborative Networks and Academic Performance  

NASA Astrophysics Data System (ADS)

Undergraduate physics students commonly collaborate with one another on homework assignments, especially in more challenging courses. However, there currently exists a dearth of empirical research directly comparing the structure of students' collaborative networks to their academic performances in lower and upper division physics courses. We investigate such networks and associated performances through a mandated collaboration reporting system in two sophomore level and three junior level physics courses during the Fall 2012 and Spring 2013 semesters. We employ social network analysis to quantify the structure and time evolution of networks involving approximately 140 students. Analysis includes analytical and numerical assignments in addition to homework and exam scores. Preliminary results are discussed.

Schmidt, David; Bridgeman, Ariel; Kohl, Patrick

2013-04-01

472

Experiential Collaborative Learning and Preferential Thinking  

NASA Astrophysics Data System (ADS)

The paper presents a Project-Based Learning (shortly, PBL) approach in a collaborative educational environment aimed to develop design ability and creativity of students coming from different engineering disciplines. Three collaborative learning experiences in product design were conducted in order to study their impact on preferred thinking styles of students. Using a thinking style inventory, pre- and post-survey data was collected and successively analyzed through ANOVA techniques. Statistically significant results showed students successfully developed empathy and an openness to multiple perspectives. Furthermore, data analysis confirms that the proposed collaborative learning experience positively contributes to increase awareness in students' thinking styles.

Volpentesta, Antonio P.; Ammirato, Salvatore; Sofo, Francesco

473

Physicians' perceptions of physician-nurse collaboration in Japan: effects of collaborative experience.  

PubMed

Studies of physician-nurse relationships have focused mainly on nurses' perceptions. Few studies have explored physicians' perceptions and related factors. This study had two aims: to describe physicians' perceptions of physician-nurse collaboration in Japan by focusing on attitudes toward collaboration and collaborative practice and to examine the effect of physicians' experiences related to collaboration on their perceptions of collaboration. A cross-sectional survey was conducted. Of the 520 physicians from four hospitals, 248 completed the survey. The survey included the Jefferson Scale of attitudes toward physician-nurse collaboration, the collaborative practice scales, learning experiences related to collaboration with nurses and experiences of joint activities with nurses. Multiple regression analysis revealed that learning experiences in undergraduate and out-of-hospital education and experiences of joint committee work were significantly associated with higher collaborative practice scores. Although participants' attitude scores had a strong association with practice scores, there were no variables significantly associated with the attitude score. This study supported the importance of education in undergraduate courses and suggested that it should be ongoing after qualification. Joint activities other than daily practice, such as continuous quality improvement, might also be effective. Factors that improve physicians' attitudes toward collaboration should be further explored. PMID:23134378

Onishi, Mami; Komi, Keiko; Kanda, Katsuya

2012-11-07

474

Linear Equations in One Variable  

NSDL National Science Digital Library

This lesson introduces students to linear equations in one variable; shows how to solve them using addition, subtraction, multiplication, and division properties of equalities; and allows them to determine if a value is a solution, if there are infinitely many solutions, or no solution at all. The site contains an explanation of equations and linear equations, how to solve equations in general, and a strategy for solving linear equations. The lesson also explains contradiction (an equation with no solution) and identity (an equation with infinite solutions). There are five practice problems at the end for students to test their knowledge with links to answers and explanations of how those answers were found.

Seward, Kim; Puckett, Jennifer

2008-01-01

475

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.

476

Webster's Horn Equation Revisited  

Microsoft Academic Search

The problem of low-frequency sound propagation in slowly varying ducts is system- atically analyzed as a perturbation problem of slow variation. Webster's horn equation and variants in bent ducts, in ducts with nonuniform soundspeed, and in ducts with irrotational mean flow, with and without lining, are derived, and the entrance\\/exit plane boundary layer is given. It is shown why a

Sjoerd W. Rienstra

2005-01-01

477

A Quadratic Spring Equation  

ERIC Educational Resources Information Center

|Through numerical investigations, we study examples of the forced quadratic spring equation [image omitted]. By performing trial-and-error numerical experiments, we demonstrate the existence of stability boundaries in the phase plane indicating initial conditions yielding bounded solutions, investigate the resonance boundary in the [omega]…

Fay, Temple H.

2010-01-01

478

Peculiar Raychaudhuri equation  

NASA Astrophysics Data System (ADS)

Peculiar motions are commonplace in the Universe. Our local group of galaxies, for example, drifts relative to the Hubble flow at about 600km/sec?. Such bulk flows are believed to fade away as we move on to progressively larger scales. Recently, however, there have been reports of peculiar motions larger and faster than typically expected. If these claims are correct, the role of peculiar flows in shaping the kinematics of our Universe has probably been underestimated. Here, we use general-relativistic techniques to analyze the average kinematics of large-scale bulk motions and compute the nonlinear Raychaudhuri equation of such flows. In doing so, we introduce two families of observers: one at rest with the Hubble expansion and another following the peculiar motion. We first derive the fully nonlinear expressions of the “peculiar” Raychaudhuri equation in both frames and identify a range of relative motion effects. Linearized around a Friedmann universe with pressureless dust, the full equations reduce to a simple relation with no explicit contribution from the matter component of the universe. Using cosmological perturbation theory, we obtain a scale-dependent formula, which also incorporates the effects of the universe’s inhomogeneity and anisotropy. When the latter are secondary, the peculiar Raychaudhuri equation solves analytically. Also, combining the resulting expression with data from recent peculiar-velocity surveys, we estimate the relative deceleration/acceleration of such bulk motions.

Tsagas, Christos G.; Kadiltzoglou, Miltiadis I.

2013-10-01

479

Structural Equation Model Trees  

ERIC Educational Resources Information Center

|In the behavioral and social sciences, structural equation models (SEMs) have become widely accepted as a modeling tool for the relation between latent and observed variables. SEMs can be seen as a unification of several multivariate analysis techniques. SEM Trees combine the strengths of SEMs and the decision tree paradigm by building tree…

Brandmaier, Andreas M.; von Oertzen, Timo; McArdle, John J.; Lindenberger, Ulman

2013-01-01

480

Homogeneous Quasilinear Evolution Equation.  

National Technical Information Service (NTIS)

In the note the authors study quasilinear evolution equations of the form u(dot) + A(u)u = 0 (1.1) in a general Banach space E(sub 0). The authors assume that A(u) is, for each fixed argument, the infinetesimal generator of a strongly continuous analytic ...

S. Li

1991-01-01

481

Nomogram for Saha'S Equation.  

National Technical Information Service (NTIS)

In the report a nomogram for the solution of Saha's equation is given. This nomogram was developed for the engineer or scientist working in the plasma field who wants a means to find an approximate plasma composition for a given pressure and temperature w...

R. T. Shneider W. G. Wolfer

1966-01-01

482

Graphing Linear Equations  

NSDL National Science Digital Library

From Elizabeth Stapel at Purplemath, this module helps students understand how to graph linear equations by making a neat T-chart, finding plot points, plotting points, and drawing the line. There are four pages in this module with clear, systematically presented, step-by-step instructions and plenty of examples and illustrations to help students along.

Stapel, Elizabeth

2000-04-14

483

System of Linear Equations  

NSDL National Science Digital Library

To futher our knowledge of science and engineering, we try to formulate mathematical models that quantify behaviors. We trust these models only when they predict observed behavior. Normally this requires the solution of the unknown quantities in our model when written in a system of equations.

Baker, Greg

484

Bayesian Structural Equation Modeling  

Microsoft Academic Search

Structural equation models (SEMs) with latent variables are routinely used in social science research, and are of increasing importance in biomedical applications. Standard practice in implementing SEMs relies on frequentist methods. This chapter provides a simple and concise description of an alternative Bayesian approach. We provide a brief overview of the literature, describe a Bayesian speciflcation of SEMs, and outline

David B. Dunson; Jesus Palomo; Ken Bollen

485

Exploring Linear Equations  

NSDL National Science Digital Library

This multimedia mathematics resource shows how math is used at the Calgary Zoo to calculate how much it costs to feed the animals. An interactive activity allows students to change variables in linear equations to create unique ways of obtaining the same solution. A print activity is provided.

2005-01-01

486

Do Differential Equations Swing?  

ERIC Educational Resources Information Center

One of the units of in a standard differential equations course is a discussion of the oscillatory motion of a spring and the associated material on forcing functions and resonance. During the presentation on practical resonance, the instructor may tell students that it is similar to when they take their siblings to the playground and help them on…

Maruszewski, Richard F., Jr.

2006-01-01

487

Symmetries of Stochastic Differential Equations  

Microsoft Academic Search

\\u000a This chapter deals with applications of the group analysis method to stochastic differential equations. These equations are\\u000a often obtained by including random fluctuations in differential equations, which have been deduced from phenomenological or\\u000a physical view. In contrast to deterministic differential equations, only few attempts to apply group analysis to stochastic\\u000a differential equations can be found in the literature. It is

Yurii Grigoriev; Nail Ibragimov; Vladimir Kovalev; Sergey Meleshko

488

Supersymmetric fifth order evolution equations  

SciTech Connect

This paper considers supersymmetric fifth order evolution equations. Within the framework of symmetry approach, we give a list containing six equations, which are (potentially) integrable systems. Among these equations, the most interesting ones include a supersymmetric Sawada-Kotera equation and a novel supersymmetric fifth order KdV equation. For the latter, we supply some properties such as a Hamiltonian structures and a possible recursion operator.

Tian, K. [LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190 (China) and Graduate School of Chinese Academy of Sciences, Beijing (China); Liu, Q. P. [Department of Mathematics, China University of Mining and Technology, Beijing 100083 (China)

2010-03-08

489

The Temporal Aspect of the Drake Equation and SETI  

NASA Astrophysics Data System (ADS)

We critically investigate some evolutionary aspects of the famous Drake equation, which is usually presented as the central guide for research on extraterrestrial intelligence. It is shown that the Drake equation tacitly relies on unverified assumptions on both the physicochemical history of our galaxy and the properties of advanced intelligent communities. In this manner, the conventional approach fails to take into account various evolutionary processes forming prerequisites for quantification of the Drake equation parameters. The importance of recent results of Lineweaver and collaborators on chemical build-up of inhabitable planets for the search for extraterrestrial intelligence is emphasized. Two important evolutionary effects are briefly discussed, and the resolution of the difficulties within the context of the phase-transition astrobiological models is sketched.

?irkovi?, Milan M.

2004-06-01

490

The temporal aspect of the drake equation and SETI.  

PubMed

We critically investigate some evolutionary aspects of the famous Drake equation, which is usually presented as the central guide for research on extraterrestrial intelligence. It is shown that the Drake equation tacitly relies on unverified assumptions on both the physicochemical history of our galaxy and the properties of advanced intelligent communities. In this manner, the conventional approach fails to take into account various evolutionary processes forming prerequisites for quantification of the Drake equation parameters. The importance of recent results of Lineweaver and collaborators on chemical build-up of inhabitable planets for the search for extraterrestrial intelligence is emphasized. Two important evolutionary effects are briefly discussed, and the resolution of the difficulties within the context of the phase-transition astrobiological models is sketched. PMID:15253840

Cirkovi?, Milan M

2004-01-01

491

Head Start/EPSDT Collaboration Evaluation.  

National Technical Information Service (NTIS)

The first year evaluation of the Head Start - Medicaid Early Periodic Screening, Diagnosis, and Treatment (EPSDT) Collaborative Effort is described in this report. The effort was initiated in 1974 by the Office of Child Development as a demonstration prog...

1976-01-01

492

NCI: SBIR & STTR - Investor Forum - Collaborators  

Cancer.gov

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.

493

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.

2005-01-01

494

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.

2005-01-01

495

CNP Project: Southwest American Indian Collaborative Network  

Cancer.gov

The Inter Tribal Council of Arizona1 established the Southwest American Indian Collaborative Network (SAICN) to eliminate cancer health disparities among American Indians. Core partners in the project represent both local and regional programs and activities.

496

Impact: a platform for collaborating agents  

Microsoft Academic Search

The paper discusses the Impact platform (Interactive Maryland Platform) for collaborative agents. Impact agents consist of software code with an associated wrapper that agentizes the code. A set of specialized servers facilitate agent interoperability in an application-independent manner

Khaled A. Arisha; Fatma Ozcan; Robert Ross; V. S. Subrahmanian; T. Eiter; S. Kraus

1999-01-01

497

Seven Principles of Highly Collaborative PD  

NSDL National Science Digital Library

Convening professionals--physically or virtually--is necessary but certainly not sufficient for meaningful collaboration and networking to occur. Professional development (PD) must be designed and carried out in ways that encourage a culture of sustained co

Lee, Michele H.

2010-07-01

498

Progress Report for C-Mod Collaboration  

SciTech Connect

The aims of the collaboration have not changed. The report describes progress in the areas of FRCECE system, charge exchange recombination spectroscopy, Beam-Emission spectroscopy (BES), as well as other contributions. A significant number of resulting publications are listed.

Dr. Kenneth W. Gentle, Dr. William Rowan, Dr. Perry Phillips

2008-09-30

499

The structure of scientific collaboration networks.  

PubMed

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

2001-01-09

500

Thought Experiments and Collaborative Learning in Physics.  

ERIC Educational Resources Information Center

|Describes a study that illustrates that collaborative-thought experiments are emergent phenomena triggered by events as a whole rather than being predesigned. Points out that participants gradually adopt shared graphical representations and meanings. Contains 28 references. (DDR)|

Reiner, Miriam

1998-01-01