Relevant bibliographies by topics / Sex sigma

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'Sex sigma'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Sex sigma"

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Gunderman, Richard B., and Mark H. Baskin. "Doing It for the First Time: Sex Sigma™." Journal of the American College of Radiology 9, no. 11 (November 2012): 773–74. http://dx.doi.org/10.1016/j.jacr.2012.07.002.

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Dave, A., K. E. Sprecher, K. K. Lui, M. G. Chappel-Farley, I. Y. Chen, K. Blennow, H. Zetterberg, et al. "0422 Apocalypse Tau: The Relationship Between Inflammaging and Local Sleep Disruption in Older Adults is Mediated by Tau Burden." Sleep 43, Supplement_1 (April 2020): A161—A162. http://dx.doi.org/10.1093/sleep/zsaa056.419.

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Abstract Introduction Chronic inflammation in aging is independently associated with tau burden and sleep disruption, though the mechanism linking inflammation with sleep disruption remains unknown. Recent evidence associates tau burden with deficits in local expression of sleep spindles and slow wave activity (SWA). Here we test the hypothesis that age-related central inflammation disrupts local sleep by influencing tau pathology. Methods Cognitively asymptomatic older adults from the Wisconsin Alzheimer’s Disease Research Center underwent overnight polysomnography with high-density electroencephalography (hdEEG; 256 channels) at the University of Wisconsin-Madison (n=33, 61.9±6.7 years, 23 female). EEG data were subjected to multitaper spectral analysis (0.5-40Hz) to yield topographic maps of SWA (SWA1:0.5-1Hz, SWA2:1-4.5Hz) and spindle (sigma1:11-13Hz; sigma2:13-16Hz) power during NREM sleep. Cerebrospinal fluid assay-based measurements of YKL-40 (indicating glial activation), phosphorylated tau (Ptau), and total tau (Ttau), were correlated with SWA and sigma topographical power employing Holm-Bonferroni correction. Multiple linear regression models were implemented controlling for age, apnea-hypopnea index (AHI), and sex at significant derivations. Finally, Sobel testing was employed to assess whether tau burden mediated YKL-40-sleep associations. Results Age was associated with YKL-40 (r=0.53, p=0.002), and YKL-40 was associated with both Ptau (r=0.66, p<0.001) and Ttau (r=0.68, p<0.001). Correlations between sigma2 activity and both Ptau and Ttau were detected at 14 derivations, 12 of which remained significant after controlling for age, sex, and AHI. YKL-40 was associated with sigma2 power (r=-0.39, p=0.025) across derivations expressing peak significance with tau. Sobel mediation analyses indicated that both Ptau (t=-2.15, p=0.031) and Ttau (t=-2.36, p=0.018) mediated the relationship between YKL-40 and sigma2 activity at these derivations. SWA was not associated with Ttau, Ptau, or YKL-40. Conclusion These results suggest that age-related increases in central glial activation may disrupt local expression of fast spindles by increasing tau burden, highlighting a potential role for chronic inflammation in sleep deficits observed in aging and Alzheimer’s disease. Support Supported by R56 AG052698, P50AG033514
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Lui, K. K., B. A. Mander, S. Radom-Aizik, M. G. Chappel-Farley, A. Dave, I. Y. Chen, R. M. Benca, and A. B. Neikrug. "0335 Frontal Expression of NREM Sleep Oscillations are Associated with Executive Function in Children and Adolescents." Sleep 43, Supplement_1 (April 2020): A127. http://dx.doi.org/10.1093/sleep/zsaa056.332.

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Abstract Introduction The prefrontal cortex, an area known for executive functioning (including inhibition and self-monitoring) develops during childhood and adolescents, with a pattern of posterior to anterior brain development. Slow-wave activity (SWA) in NREM sleep, tracks brain development with high SWA power migrating from occipital to frontal region as brain maturation occurs. This pilot study aimed to examine whether slow wave topography is correlated with executive function in youth. Methods Seventeen healthy children and adolescents (ages 11-17; 10 females) underwent overnight polysomnography (PSG) with high-density electroencephalography (hdEEG). Behavior Rating Inventory of Executive Function (BRIEF) was administered to assess executive function. SWA (SWA1: 0.5-1 Hz; SWA2: 1-4.5 Hz) and spindle (slow sigma: 11-13 Hz; fast sigma: 13-16 Hz) activity was analyzed with spectral analysis using Welch’s method. BRIEF subscales of inhibition and monitor were correlated with SWA and sigma power across all derivations, with Holm-Bonferroni correction (126 channels). Significant derivations were then controlled for sex and self-reported Tanner stage using multiple regression Results BRIEF-Inhibition scale (i.e., ability to repress impulsivity) and SWA1 in anterior frontal derivations were negatively correlated (R2=0.58, p=0.047 corrected). BRIEF-Monitor scale (i.e., self-perception of one’s own behavior and interpersonal awareness) was negatively correlated with fast sigma in anterior frontal derivations (R2=0.65, p=0.013 corrected). These associations were significant after controlling for sex and Tanner stage. Conclusion These results support the hypothesis that NREM sleep oscillations are associated with executive function and reflect changes in neuroplasticity related to “back-to-front” brain maturation. Future longitudinal studies should combine multi-modal neuroimaging of brain structure and local sleep with comprehensive assessments of executive function to evaluate the possible link between local sleep and development of higher-order cognition in frontal brain regions in youth. Support NCATS grant #UL1TR001414 & PERC Systems Biology Fund
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Zhang, Jing, Lauren Whitehurst, and Sara Mednick. "042 A look at sex differences on sleep’s impact on working memory improvement." Sleep 44, Supplement_2 (May 1, 2021): A18. http://dx.doi.org/10.1093/sleep/zsab072.041.

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Abstract Introduction Studies have shown that sleep affects working memory (WM) improvement, but specific electrophysiological features are unclear (Sattari et al., 2019; MacDonald et al., 2018). In addition, sex differences have been found in both sleep and working memory (Mong, 2016; Harness, 2008). The goal of this study is to identify sex differences in EEG correlates of working memory over a night of sleep. Methods Sixty-three healthy (33 females), college-aged adults without sleep disorder were enrolled. A 32-channel electroencephalogram (EEG) cap was used to record brain activity during sleep. Operation span (OS) task was used to evaluate WM performance. Participants reported to the laboratory in the evening, performed OS before sleep (test1) and after sleep (test2). Trials were divided into easy and hard trials based on the number of letters subjects had to recall. A repeated-measure analysis of variance was conducted to examine the effects of time and trial difficulty. Paired-sample t-tests between test 1 and test 2 were conducted for males and females. Pearson’s correlations were examined between WM performance at test 1 and the difference score between test 1 and test 2 and EEG frequency bands. The Benjamini–Hochberg method was used to control for multiple comparisons. Results There was an increase in performance across the night in WM hard trials across all subjects (F(1,62)=4.86, p=0.03), no effect for easy trials (p>0.05). Females, but not males, showed a significant decrease in easy trials (t62= 2.40, p=0.02), while both males and females showed improvement in hard trials across the night. Females showed a positive correlation between test 1 hard trials and slow sigma, delta, slow oscillation in stage 3, this correlation is not seen in males. No correlations between overnight improvement and EEG bands were found. Conclusion Consistent with previous studies, participants showed better memory performance over a night of sleep, and the WM performance was associated with slow wave activity in females. Slow sigma also plays a role in the WM performance for females, indicating a possible role of sleep spindles. These associations were not shown in males, suggesting sex hormones mediate sleep’s impact on WM performance. Support (if any):
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Bentz, Meghan L., Eve A. Humphrey, Lawrence G. Harshman, and Marta L. Wayne. "Sigma Virus (DMelSV) Incidence in Lines of Drosophila melanogaster Selected for Survival following Infection with Bacillus cereus." Psyche: A Journal of Entomology 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/3593509.

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The immune response of Drosophila melanogaster is complex and involves both specific and general responses to parasites. In this study we tested for cross-immunity for bacteria and viruses by scoring the incidence of infection with the vertically transmitted Sigma virus (DMelSV) in the progeny of a cross between females transmitting DMelSV at high frequencies and males from lines subjected to three selection regimes related to resistance to Bacillus cereus. There was no significant difference in transmission of DMelSV among selection regimes, though results suggest that the B. cereus selected lines had lower rates of infection by DMelSV. We found a significant difference in viral infection with respect to the sex of the progeny, with males consistently less likely to be infected than females. Given a finite energy budget, flies that have experienced immune system challenge may show alterations in other life history traits. Later eclosing progeny were also less likely to be infected than earlier eclosing progeny, indicating a relationship with development time. Finally, there was a significant interaction between the timing of collection and the sex of the progeny, such that later eclosing males were the most resistant group. Increased development time is sometimes associated with increased energy acquisition; from this perspective, increased development time may be associated with acquiring sufficient resources for effective resistance.
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Sha, Sha, Juan Hong, Wei-Jun Qu, Zi-Hong Lu, Lin Li, Wen-Feng Yu, and Ling Chen. "Sex-related neurogenesis decrease in hippocampal dentate gyrus with depressive-like behaviors in sigma-1 receptor knockout mice." European Neuropsychopharmacology 25, no. 8 (August 2015): 1275–86. http://dx.doi.org/10.1016/j.euroneuro.2015.04.021.

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Senthilkumar, Dr D., and B. Esha Raffie. "Six Sigma Single Sampling Variables Plan Indexed by Six Sigma AQL and Six Sigma AOQL." International Journal of Innovative Research in Engineering & Management 3, no. 6 (November 17, 2016): 482–89. http://dx.doi.org/10.21276/ijirem.2016.3.6.6.

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Thuany, Mabliny, Beat Knechtle, Lee Hill, Thomas Rosemann, and Thayse Natacha Gomes. "Running Pace Percentile Values for Brazilian Non-Professional Road Runners." Healthcare 9, no. 7 (June 30, 2021): 829. http://dx.doi.org/10.3390/healthcare9070829.

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Background: The purpose of this study was to establish sex-specific percentile curves and values for the running pace of Brazilian non-professional runners. Methods: The sample comprised 1152 amateur runners aged 18–72 (61.8% males), from the five Brazilian regions. The runners answered an online questionnaire providing information about their biological (sex, age, height, weight) and training (volume and frequency/week, running pace) characteristics. Using 25th, 50th, and 75th percentile, the running pace was computed for women and men by age groups and by running distances (5 km, 10 km, 21 km, and 42 km). Sex- and age-specific percentile curves (10th, 25th, 50th, 75th, and 90th) were created through the Lambda Mu Sigma method. Results: For all ages and distance, men performed better than women, and a decrease in the performance was observed across age groups. Among male runners, the beginning of their thirties and the end of their forties seem to be the moments where they observed substantial improvements in running pace; among female runners, this improvement phase was observed to be more pronounced toward the end of their forties. Conclusions: Percentile values of running pace could help coaches during training programs and runners to better understand “how well” they are comparing against their peers.
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Kosyreva, A. M. "The Sex Differences of Morphology and Immunology of SIRS of Newborn Wistar Rats." International Scholarly Research Notices 2014 (November 6, 2014): 1–7. http://dx.doi.org/10.1155/2014/190749.

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The sex differences of infection and inflammatory diseases particularly appear at reproductive age and depend on the sex hormone level, varied between male and female. There are a few sets of data about the sex differences of infection and inflammatory diseases course, including systemic inflammatory response syndrome (SIRS) and sepsis, of newborns. The aim of our research was the estimation of morphological and immunological manifestation of SIRS of the newborn Wistar rats. Investigations were carried out on male and female two-day-old Wistar rats (10–12 g). SIRS was modeled by intraperitoneal injection of LPS (E. coli, O26: B6 strain, Sigma) in high dose—15 mg/kg. We did not find out any sex differences of the liver lesions severity between newborn males and females after LPS injection. The levels of endotoxin and estradiol in the serum, as the number of neutrophils in the intra-alveolar septa of the lungs, were higher in males than females with SIRS. Production of IL-2 and TNF-α by the spleen cells of males was higher than that in control group that reflects polarization predominantly on the Th1-type immune response. The secretion of IL-2, TNF-α, and IFN-γ by ConA activated spleen cells of females decreased that reflects the suppression of Th1-type immune response. We suppose that the LPS administration in the high dose causes the multidirectional reaction of the immune system of neonatal males and females Wistar rats.
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Tomkinson, Grant R., Kevin D. Carver, Frazer Atkinson, Nathan D. Daniell, Lucy K. Lewis, John S. Fitzgerald, Justin J. Lang, and Francisco B. Ortega. "European normative values for physical fitness in children and adolescents aged 9–17 years: results from 2 779 165 Eurofit performances representing 30 countries." British Journal of Sports Medicine 52, no. 22 (November 30, 2017): 1445–56. http://dx.doi.org/10.1136/bjsports-2017-098253.

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ObjectiveTo develop sex-specific and age-specific normative values for the nine Eurofit tests in European children and adolescents aged 9–17 years.MethodsA systematic review was undertaken to identify papers that explicitly reported descriptive results for at least one of nine Eurofit tests (measuring balance, muscular strength, muscular endurance, muscular power, flexibility, speed, speed-agility and cardiorespiratory fitness (CRF)) on children and adolescents. Data were included on apparently healthy (free from known disease/injury) children and adolescents aged 9–17 years. Following harmonisation for methodological variation where appropriate, pseudodata were generated using Monte Carlo simulation, with population-weighted sex-specific and age-specific normative centiles generated using the Lambda Mu Sigma (LMS) method. Sex-specific and age-specific differences were expressed as standardised differences in means, with the percentage of children and adolescents with healthy CRF estimated at the sex-age level.ResultsNorms were displayed as tabulated centiles and as smoothed centile curves for the nine Eurofit tests. The final dataset included 2 779 165 results on children and adolescents from 30 European countries, extracted from 98 studies. On average, 78% of boys (95% CI 72% to 85%) and 83% of girls (95% CI 71% to 96%) met the standards for healthy CRF, with the percentage meeting the standards decreasing with age. Boys performed substantially (standardised differences >0.2) better than girls on muscular strength, muscular power, muscular endurance, speed-agility and CRF tests, but worse on the flexibility test. Physical fitness generally improved at a faster rate in boys than in girls, especially during the teenage years.ConclusionThis study provides the largest and most geographically representative sex-specific and age-specific European normative values for children and adolescents, which have utility for health and fitness screening, profiling, monitoring and surveillance.
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Dissertations / Theses on the topic "Sex sigma"

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Berg, Jenny, and Yvonne Widell. "Förbättring av sjukskrivningsprocess med Sex Sigma och mikrosystem perspektiv." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ. Kvalitetsförbättring och ledarskap inom hälsa och välfärd, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-18581.

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Bakgrund: Sjukfrånvaron i Sverige 2004 var högst i Västeuropa och landets enskilt största ekonomiska problem. Regeringen vidtog åtgärder för att minska sjukfrånvaron. En del var att ge incitament för att sjukskrivningsprocessen skulle finnas med i hälso- och sjukvårdens ledningssystem, delvis på grund av förändrade krav och därmed brister i läkarintygens kvalitet. En lokal undersökning vid ortopedkliniken Kärnsjukhuset visade att 23 % av patienterna var missnöjda i samband med sjukskrivning. Syfte: Genom Sex Sigmas problemlösningsmodell DMAIC i kombination med mikrosystemperspektivet förbättra kvaliteten på läkarintygen, skapa mål och rutiner i sjukskrivningsprocessen samt öka patientnöjdhet  Metod: Utifrån ett mikrosystemperspektiv intervjuades projektgruppsdeltagare. Genom Sex Sigmas problemlösningsmodell fokuserades förbättringsområden på informationsutbyte till patienter och läkare samt utformande av mål och skriftliga rutiner. Femtioåtta patienter intervjuades om hur nöjda de var med sin sjukskrivning. Mätningar av ”onödiga” åtgärder utfördes och kvaliteten i läkarintygen följdes med styrdiagram. Förbättringsprojektet utvärderades kontinuerligt genom reflektion i projektgruppen. Resultat: Förbättringsarbete med hjälp av Sex Sigma och mikrosystemperspektiv har bidragit signifikant till ökad kvalitet i läkarintygen, p<0,001. Rutiner och mål för sjukskrivningsprocessen har implementerats i ledningssystemet. Hundra procent av patienterna på ortopedkliniken är nöjda och telefonsamtal om brister och felaktiga ärenden har minskat. Förbättringsmetodiken har bidragit till ett vidgat synsätt, ökad förståelse för patienten och mellan personalkategorier. Åtgärderna har haft genomslagskraft genom att förbättringsförslagen kom från dem som arbetar i verksamheten och genomfördes med egen personal. Diskussion: Sex Sigma och mikrosystemperspektivet har patientfokus vilket kan påverka värderingar och vilja till förändringar. Resultatet från denna studie stöder det som kommit fram i andra studier och arbetssättet gav signifikant förbättrat resultat. Förbättringsåtgärderna är inte generaliserbara men arbetssättet kan med fördel tillämpas i förbättringsarbete. Ytterligare studier av arbetssättet och dess hållbarhet över tid behövs för att stärka evidensen.
Background: The sickness absence in Sweden 2004 was highest inWestern Europe and the country's main economic problem. The government gave incentives to make the sick-leave process included in healthcare management system, partly because of changing requirements and deficiencies in the quality of medical-certificates quality. A local study at an orthopedic clinic showed that 23% of patients were dissatisfied with sick-leave. Purpose: Through Six Sigma's DMAIC problem-solving model in combination with micro-systems perspective, improving the quality of medical certificates, create goals and routines in the sick-leave process and increase patient satisfaction Method: Interviews of project participants were carried out using a micro-systems perspective. Through Six Sigma problem-solving model areas of improvement were focused on information exchange to patients and physicians as well as formulating goals and written routines. Fifty-eight patients were interviewed about their sick-leave satisfaction. Measurements of "unnecessary" actions were performed and the quality of medical certificates was followed with control-charts. The improvement project was evaluated by reflection in the group continuously. Results: Improvements with Six Sigma and micro-systems perspective has contributed to improving the quality of medical certificates significantly p<0.001. Routines and goals for sick-leave process have been implemented in the management system. 100% of the patients at the orthopedic clinic are satisfied. Phone calls about deficiencies and incorrect cases have decreased. This methodology has contributed to a broadened understanding of patients´ experiences and between different staff-categories. The actions have had impact because the improving proposals came from and were carried out by its own staff. Discussion: The Six Sigma and the micro-systems perspective has patient focus which can affect the values and willingness to change. The result from this study supports other studies and the approach in this study resulted in significantly improved results. Improvement actions are not generalizable, but the approach can be usefully applied in improvement efforts. Further studies of the approach and its sustainability over time are needed to strengthen the evidence.
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Anderberg, My. "Förbättrande av Punktlighet – ur ett Lean-perspektiv : Avgångspunktlighet för SJ AB Hagalund." Thesis, KTH, Industriell Management, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186522.

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I denna rapport har avgångspunktligheten på SJ:s tågdepå i Hagalund undersökts, med som syfte att hitta bakomliggande mönster och orsaker till förseningar. Det teoretiska ramverk som använts är en kombination av Lean och Six Sigma, där managementverktyget Lean har sin grund i optimering av resursutnyttjande och minskande av slöseri. De Lean-begrepp som främst tagits fasta på är Visualisering och Standardisering, då SJ har haft stora problem inom just dessa områden.   Det praktiska arbetet i rapporten har i sin tur följt Six Sigma-metoden DMAIC (Define, Measure, Analyze, Improve, Control), där stor tyngdpunkt har lagts vid Mätning och Analysering.   Den kvantitativa data som använts kommer direkt från SJ:s egna förseningsrapporter, där tåg som avgår fem minuter eller mer efter planerad avgångstid anses försenade. Denna försening avläses maskinellt, och den planerade avgångstiden kallas Rättidighet (RT). Alla RT > 5 avgångar noteras automatiskt, och för dessa förseningar rapporteras även förseningsorsak. Förseningsorsakerna sätts manuellt av personal på Depå Hagalund utifrån en begränsad lista med valbara förseningstyper (JDE-koder).   Arbetet i denna rapport gjordes under en sexmånadersperiod hösten/vintern 2012/2013. Arbetet tittade främst på data från perioden för Tidtabell 2012 (T12), vilken sträckte sig från den 11e december 2011 till den 8e december 2012. Extra punktmarkering lades på november 2012, under vilken ett experiment i punktlighetsrapportering utfördes.   Stor vikt lades vid visualisering och standardisering av processer, där tidtabellen är en naturligt styrande process vilken resursfördelat ger arbetsprocesser.   En dataminering av förseningsstatistiken för T12 visade under arbetets gång på stora brister i den manuella förseningsrapporteringen, där inkonsekvent användning av JDE-koderna gjorde det omöjligt att med säkerhet få fram bakomliggande förseningsorsaksmönster.   För att komma runt bristerna i grunddatan gjordes därför ett ovan nämnt experiment i november 2012 där all förseningsorsaksrapportering under månaden övervakades så att JDE-kodsättningen blev korrekt gjord. Resultatet visade på ett stort mörkertal i inrapporterade förseningar av typen ”Handhavandefel”, förseningar som tidigare dolts i slaktratskoden ”Övrigt”.   En visualisering av den maskinellt inrapporterade avgångspunktligheten, RT-datan, kunde i sin tur visa på brister vid skiftesbyten, samt fastställa 13:00-18:00 som en generellt tungt förseningsdrabbad tid på dygnet. Dygnsvisualiseringen av förseningar jämfördes även med en dygnsvisualisering av tågens tid på bangården, den så kallade vändtiden, där tåg som spenderar mindre än tre timmar på Depå Hagalund kunde påvisas påverka den allmänna punktligheten i högre grad än andra avgångar. Med hjälp av regressionsanalys kunde även dokumenteras att sent ankomande tåg med kort vändtid i högre utsträckning även avgår försenade, meden sent ankommande tåg med längre vändtid ej statistiskt påverkades vad gäller avgångspunktlighet.
This report is a study of departure punctuality at the SJ train depot in Hagalund. The purpose of the report has been to find underlying patterns and reasons behind late departures.   The theoretical framework that has been used is a combination of Lean and Six Sigma, where the management tool Lean has its basis in optimal resource utilization and minimizing of waste. The Lean concepts that have primarily been used are Visualization and Standardization, this since those are areas in which SJ have been lacking.   The practical work behind the report has been done using the Six Sigma method DMAIC (Define, Measure, Analyze, Improve, Control), where a large focus has been put on Measuring and Analyzing.   The quantitative data that’s been used has come directly from SJ’s own late departure reports, where trains departing 5 minutes or more past the scheduled time are considered to be late. This lateness is automatically registered, where the scheduled departure time is called Right Time (RT) and RT > 5 hence indicated a late departure.   The reason behind the lateness is also noted for all departures, but this data is entered manually and the reason is chosen from a limited, predefined list of lateness codes (JDE codes).   A data mining of the late departure statistics for the Timetable period 2012 (December 11th 2011 to December 8th 2012) revealed large flaws with the manual lateness reporting, where inconsistent usage of the JDE codes made it impossible to discern any underlying patterns in lateness factors.    To circumvent the data flaws an experiment was mad during November 2012, where all late departure reporting during the month was monitored to ensure proper JDE code usage. The result revealed a large previously unknown source of delay, “Human error”, which had hitherto been hidden in the catch-all code “Miscellaneous”.    A visualization of the automatically collected departure data, the RT data, in turn revealed clear issues during personal shift changes, and also concluded 1pm-6pm CET to be a late departure heavy time of the day. The visualization of departure data was also compared to the visualization of trains’ time spent at the depot, the so called turn time, where trains spending less than three hours at Depot Hagalund could be shown to affect the general departure punctuality to a higher degree than other trains. Through use of regression analysis it could also be shown that trains arriving late with a short turn time, to a higher degree also departed late, whilst trains with a longer turn time were seemingly statistically unaffected by delays in arrival.
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Svensson, Andreas. "5S och DMAIC : Första steget mot Lean Sex sigma En studie för införande av Lean Sex sigma i en mindre organisation i samarbetet med Eco-Boråstapeter." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19026.

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Sheremet, Tatiana. "Förbättring av rådgivningsprocess mot ökad kundnöjdhet med stöd av Sex Sigma." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-359572.

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En undersökning från Svenskt Kvalitetsindex har visat på låg kundnöjdhet i en av de svenska storbankerna. Banken har flera kategorier av kunder som ställer olika krav på service. Nöjdheten bland de prioriterade kunderna mäts med bankens egna kundbarometer på en skala mellan 0 till 10 där betygen 9 och 10 indikerar att kunderna skulle rekommendera banken. Syftet med min studie är att utvärdera och analysera kundnöjdheten och bankens rådgivningsprocess mot bakgrund av dess tillhandahållna tjänster. Studien syftar även på att ta fram förbättringsförslag för att nå ökad kundnöjdhet. Därför har jag gjort en litteraturstudie med hjälp av både kvalitativ och kvantitativ dataanalys utifrån Sex Sigmas problemlösningsmetodik, DMAIC (Definiera-Mäta-Analysera-Implementera-Kontrollera). Forskningsfrågorna utgår från teorier inom kundtillfredsställelse och coachning. Resultaten från studien visar att kvalitetsfaktorer som professionalitet, attityd och tillförlitlighet är viktigast för att ge ökad kundnöjdhet och bidra till en förbättrad rådgivningsprocess med stöd av coachning. Slutsatsen är att bankens rådgivare kan tillämpa en coachande rådgivningsmodell genom att koncentrera sig på aktiv kommunikation via uppföljning. På så sätt kan de prioriterade kunderna motiveras att rekommendera banken till andra.
Swedish Quality Index survey shows low customer satisfaction in one of the Swedish banks. The bank has several categories of customers that impose different quality service requirements. Customer satisfaction among the priority customers is measured with the bank's own customer barometer on a scale of 0 to 10 where two highest ratings indicate that these customers would recommend the bank to others. The purpose of the survey is to evaluate and analyze customer satisfaction and advisory process considering the services provided. The work points at developing improvements towards increased customer satisfaction. The thesis therefore consists of a literature study including qualitative and quantitative data analysis based on Six Sigma's problem-solving methodology, DMAIC (Define-Measure-Analyze-Improve-Control).  Research questions are based on customer satisfaction and coaching theories. The results from the study show that quality factors such as professionalism, attitude, and reliability are the most important for increasing customer satisfaction and contributing to an improved counseling process with coaching. The conclusion is that the bank's adviser can apply a coaching advisory model by concentrating on active communication through follow-up. In this way, the priority customers can be motivated to recommend the bank to others.
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Cedén, Zandra. "Vägen mot flexibilitet : En studie av Sex Sigma och lean production inom industrin." Thesis, Uppsala University, Department of Economic History, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8541.

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This paper is about the new methods and metrics used in industry and business today striving for better revenues and larger market shares. It investigates the relations between the old fordistic and tayloristic way of manufacturing and compares it to the models used in industry today for being competitive, seeking to please customers and becoming more flexible. More specific the paper is about if Six Sigma and lean production are the key for succeeding these days. SKF:s factory in Gothenburg and other companies will make an example for how these methods are used in practice.

The aim is to try to answer if these systems with inherited tools and methods are the right way to get the flexibility that is needed for being able to deliver the right goods to customers and market. For a company to be flexible decisions must be made fast and needed changes must be able to be done easy and without too large costs and investments. Both in Six Sigma and lean production the total staff in a company is involved with quality matters and continuous improvements. This brings an atmosphere and a certain way to work that makes it possible to reach high defined goals and move towards a common vision. Flexibility can be reached in both production and in developing new products when a company has an atmosphere that makes it possible for all personnel to talk the same language and strive for the same thing. Six Sigma and lean production have the possibility to achieve a higher level of flexibility, that is, when being applied in right places in the right way.

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6

Alwaeli, Laith. "Sjukvårdens behov av kurser inom verksamhetsutveckling." Thesis, Högskolan Väst, Avd för maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5789.

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Kasljevic, Antonio, and Jakob Johansson. "Sex Sigma för kvalitetssäkring av cirkulära processer : En fallstudie vid Carlsbergs hanterings- och tappningsprocess av ölfat." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69854.

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Industriellt tillverkande företag har traditionellt använt sig av linjära affärsmodeller där verksamhetens ägandeskap avslutats efter försäljning av produkter. En ökad medvetenhet om jordens begränsade resurser hos konsumenter, organisationer och samhällen har drivit EU att under 2018 introducera en hållbarhetsstrategi som syftar till att främja en övergång mot cirkulära ekonomier. Affärsmodellen hos cirkulära ekonomier innebär att verksamheten designar produkten och utformar tillhörande processer så att produkten kan återanvändas, vilket medför en längre livscykel. Carlsberg är en verksamhet som arbetar med cirkulära processer vid tillverkning av öl, läsk och cider, där en del av volymen säljs på fat. Affärsmodellen för dessa fat innebär en cirkulär process där fat cirkulerar i ett slutet system. De senaste tre åren har Carlsberg upplevt en negativ trend i form av ökat antal reklamationer, främst på grund av kvalitetsbrister i fatölsprocessen. I studien användes Sex Sigmas problemlösningsmetodik DMAIC för att identifiera rotorsaker till förekomsten av reklamationer. DMAIC står för faserna Define, Measure, Analyse, Improve och Control. Varje fas har ett specifikt syfte som bidrar till struktur vid genomförandet av förbättringsprojekt. Nyttjandet av DMAIC som problemlösningsmetodik i linjära processer har genom åren visat sig vara framgångsrikt, däremot har lite forskning bedrivits för att undersöka utfallet av att applicera DMAIC vid kvalitetssäkring av cirkulära processer. Studiens syfte har två övergripande perspektiv, ur ett akademiskt perspektiv undersöks DMAIC:s applicerbarhet på cirkulära processer för att bidra till forskningen och övergången till cirkulära ekonomier. Ur ett praktiskt perspektiv syftar studien till att identifiera förbättringsåtgärder och minska förekomsten av reklamationer på Carlsbergs fatöl. Studien genomförde ett projekt där fabriksnya ölfat jämfördes med icke-bearbetade ölfat. Resultatet visade att förekomsten av reklamationer minskade med 77 % när ölen såldes i fabriksnya ölfat.  Ölfatens kvalitet har en signifikant påverkan på mängden reklamationer, vilket indikerar kvalitetsbrister i nuvarande hanterings- och tappningsprocess. En processkartläggning samt undersökning av historisk reklamationsstatistik genomfördes för att identifiera förbättringsmöjligheter. Undersökningen av historisk reklamationsstatistik och intervjuer identifierade kopplingsfel som tredje största reklamationsanledning under 2018. Omfattningen av kopplingsfelet har tidigare inte varit känd. Utöver åtgärd för kopplingsfelets rotorsak har studien även identifierat förbättringsåtgärder inom ansvarsfördelning, hantering, arbetsrutiner och förebyggande kvalitetssäkring. Om Carlsberg väljer att implementera dessa är en realistisk målsättning att sänka antalet reklamationer med 30 %, vilket innebär en besparingspotential på 1 578 000 SEK per år.
Manufacturing organizations have traditionally utilized linear business models where ownership of the product has shifted when the sale process is complete. However, consumers, organizations and society as a whole has gained awareness about Earths' limited resources and driven EU to introduce a new sustainable strategy to facilitate the transition to circular economies. Circular economies are business models that focus on product design and development of related processes within the organization to enable reuse of products and materials, hence extending the product lifecycle.  Carlsberg is an organization that utilizes circular processes in their manufacturing processes of beer, soda and cider, where a part of the produced volume is sold in kegs. The business model of the kegs is a circular process where kegs circulate in a closed system. Carlsberg has during the last three years experienced an increase in reclamations of kegs, mainly because of quality shortcomings in the process. The study was conducted with the Six Sigma problem-solving method DMAIC to map related process, identify root-causes to reclamations and develop recommendations to improve current processes.  DMAIC includes the steps Define, Measure, Analyse, Improve and Control. Every step has a specific purpose which contributes to structure when conducting an improvement project. Utilization of DMAIC as a problem-solving method has through the years proven to be successful, however no research has been conducted to investigate the outcome of applying DMAIC to improve the quality within circular processes.  The purpose of the study has two main perspectives, from an academic perspective the applicability of DMAIC in circular processes is investigated contributing in the transition to circular economies and more research within the area. From a practical perspective, the study aims to identify areas of improvement and reduce future reclamations of beer kegs at Carlsberg. In the study a project where conducted, comparing reclamations of brand-new beer kegs with kegs circulating in the current process. Results show that reclamations decreased with 77 % when the beer was sold in brand-new kegs. This shows that the quality of the kegs has a significant effect on the reclamations and indicates areas of improvement in the current handling and bottling process. A map of the current process and evaluation of historical reclamation data where conducted to identify areas of improvements. Evaluation of historical reclamation data in combination with interviews identified fault in coupling as the third largest cause of reclamation during 2018. The extent of this problem was previously unknown within the organization.  The study has identified areas of improvement within accountability, handling, operating procedures and preventive quality assurance. If Carlsberg implement suggested improvements, a realistic goal is to decrease the reclamations of kegs with 30 % which means a potential cost saving of 1 578 000 SEK annually.
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Hassan, Sara. "IMPLEMENTERING AV STATISTISK PROCESSTYRNING VID SMÅ SERIER." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27810.

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Statistisk processtyrning, SPS, är ett välkänt verktyg som används för kvalitetsförbättringar inom organisationer världen över. De senaste åren har tillverkande organisationer tenderat att gå mot kortare serier, vilket medför en problematik när de vill tillämpa statistiska metoder som är utvecklade för traditionell masstillverkning. Framgångsfaktorer för implementering av SPS vid små serier är ett relativt outforskat område och kräver därför ytterligare forskning. Syftet med denna studie var att ta fram en modell över hur SPS framgångsrikt kan implementeras av organisationer med små serier och en stor detaljflora. För att besvara syftet genomfördes en fallstudie med både kvantitativ och kvalitativ metod. Deltagande observationer och en workshop med 15 deltagare utfördes för att identifiera existerande variationer samt definiera nuläget i det avgränsade produktionsflödet, vars processer studerades i studien. Tre produktfamiljer och kritiska parametrar som representerade produktkvalitén valdes ut för att följas upp i styrdiagram. En mätsystemanalys utfördes för att undersöka om de mätdon som i stor utsträckning användes för kvalitetskontroll i processen var tillförlitliga. Styrdiagram upprättades anpassade för små serier och statistiska analyser utfördes för att undersöka om SPS var en användbar metod för kvalitetsförbättringar i processer med små serier. En kvalitativ benchmark med fyra deltagande organisationer utfördes även för att ta del av deras erfarenheter relaterat till implementering och arbete med SPS.  Resultatet visade att den studerade organisationen behöver utföra förändringar gällande arbetsmetoder för kvalitetskontroll samt hantering av processer och mätsystem. Det finns även behov av ett omfattande förbättringsarbete, för att eliminera det flertalet orsaker till systematiska variationer som identifierades påverka processerna och produktkvalitén. Dessa förändringar krävs innan en implementering av SPS kan genomföras. Verktyg inom SPS visade sig med framgång kunna användas för att förbättra processer med små serier, vid användning av standardiserade styrdiagram som möjliggör analys av flera produkter i samma diagram. Processer med små serier och en stor detaljflora medför en utökad komplexitet vid statistiska analyser och visar tecken på ett flertal svårigheter som ökar risken för en fallerad implementering.  Utifrån analyser av det kvalitativa och kvantitativa resultatet skapades en modell med 15 framgångsfaktorer för implementering av SPS vid små serier. Faktorerna bör följas av organisationer med små serier som vill lyckas med att implementera SPS. Framgångsfaktorerna är följande: (1) Var beredd på en kulturförändring som kräver att SPS vävs in i hela organisationen, (2) Förmedla ett tydligt mål och hållbar strategi för arbetet med SPS, (3) Skapa ett utbrett engagemang i hela organisationen, (4) Utse en SPS-koordinator, (5) Inför utbildning och uppföljning från start, (6) Skapa tvärfunktionella team, (7) Främja samarbete och delaktighet under förbättringsarbetet, (8) Ställ krav på ett dugligt mätsystem, (9) Utför en pilotstudie där det finns intresse, (10) Identifiera kritiska processer, produktfamiljer och parametrar, (11) Börja med att lära känna processerna, (12) Upprätta standardiserade styrdiagram, (13) Tolkning och analys av styrdiagram utförs enligt Montgomerys metod för statistiska analyser, (14) Sträva efter stabila processer, (15) Utför kontinuerlig uppföljning.
Statistical process control, SPC, is a widely used technique for quality improvements by companies all over the world. The current trend in manufacturing organizations is directed towards shorter productions runs, which cause problems when applying traditional statistical methods developed for SPC on mass production runs. The critical factors for a successful implementation of SPC on short runs are still not fully explored and require further research. The main purpose of this study was to present a conceptual framework that illustrates the successful implementation of SPC in organizations with short runs and extensive product portfolio. In order to answer the research questions, a case study research methodology with both quantitative and qualitative methods was used. Participant observations and a workshop including 15 participators were performed in order to identify existing process variability’s and current state of the studied production processes.  Three product families and key quality characteristics of each product were chosen to be monitored in control charts, based on scrap costs and staff experiences of the production process.  A measurement system analysis was used to determine if the gauges, used to make measurement quality controls, were capable. Control charts were constructed and adjusted to short production runs. Statistical analysis was then made on the information gathered through the control charts to determine if statistical tools within SPC was useful for quality improvements on short production runs.  Also a qualitative benchmark was performed with four manufacturing companies to take part of their experiences and knowledge related to the implementation and application of SPC.  The findings indicate that the studied organization needs to improve working methods related to quality inspections and monitoring of the production processes. The organization also needs to improve the measurement system and make an extensive work of improvement to reduce the many identified special causes of variation that affects the processes and product quality, before implementing SPC in the organization. Findings showed that SPC tools and techniques successfully can be adopted to improve short run production processes when using standardized control charts for different product types. Short run production processes involve more complex statistical analysis which could inhibit the success of an implementation of SPC.   The analysis of the qualitative and quantitative findings resulted in a framework including 15 critical success factors for the implementation of SPC in short production runs. All the following critical success factors should be taken into account by organizations with short runs that aspire a successful implementation of SPC: (1) Be ready to make a cultural change including the recognition of the importance of SPC within the whole organization, (2) Communicate a clear goal and long-term strategy, (3) Create motivation and commitment from top management to operators on the shop floor, (4) Select a SPC coordinator, (5) Introduce a training programme with feedback from start, (6) Create cross-functional teams, (7) Stimulate cooperation and participation within the work of improvements, (8) Ensure a capable measurement system, (9) Perform a pilot project with enthusiastic employees, (10) Identify critical processes, product families and key quality characteristics, (11) Focus on exploring process behaviors, (12) Construct standardized control charts, (13) Interpret and analyze control charts according to Montgomery’s method for statistical analysis, (14) Attempt to obtain processes in control, (15) Perform continuous follow ups.
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Stefanussen, Sund Helene, and Malena Österlind. "Materialhantering och alternativa förpackningslösningar : En studie vid GETRAG All Wheel Drive AB." Thesis, Linköping University, Department of Production Economics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7224.

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Köpingsföretaget GETRAG All Wheel Drive AB utvecklar, tillverkar och levererar komponenter för drivteknik till personbilsindustrin. Genom projektet 580-9 planerar företaget att införa en monteringsbana för en nyutvecklad produkt. Till denna önskar företaget skapa en materialhantering som är kostnadseffektiv, lever upp till kundernas krav på hög kvalitet samt utesluter hantering av träemballage vid monteringsbanan. Syftet med examensarbetet är därför att ge förslag till en kostnadseffektiv materialhantering där emballage som avger restprodukter inte hanteras vid monteringsbanan.

För att undersöka examensarbetets frågeställningar har vi utrett hur materialförsörjningen till banan bör skötas. Studien bygger främst på teorier om lean produktion och förpackningslogistik. Utredningen innefattar en analys av nuläget och ger förslag till förbättringar utifrån denna. Vidare har vi studerat effekterna av och kostnaderna för alternativ till trä- och kartongemballage samt gjort en kartläggning av marknaden för alternativa emballage.

Resultatet av studien visar att för att skapa en effektiv materialhantering är det viktigt att eliminera de slöserier som finns i materialflödet, till exempel överproduktion, onödiga lager och onödiga transporter. För att skapa en jämn materialhantering bör mängden artiklar som fylls på vid banan motsvara förbrukningen under en bestämd tidsperiod, eller multiplar av denna period, för samtliga produkter. Vidare bör inte montörerna ansvara för påfyllnaden av artiklar vid monteringsbanan, detta bör istället skötas av en materialhanterare.

Studien visar även att olika förpackningar bör användas för olika artiklar beroende på produktens egenskaper samt varifrån den levereras. Att utesluta trä- och kartongemballage medför kostnader som måste vägas mot kundernas krav. Om det är alltför kostsamt att leverantören skickar i emballage som inte avger damm eller flisor finns det möjlighet till en ompackning. Denna bör för det specifika projektet ske internt i form av en manuell dukning.

Utifrån de slutsatser som dragits av arbetet är vår rekommendation att GETRAG All Wheel Drive AB bör arbeta för en mer kostnadseffektiv materialhantering genom lean produktion och sex sigma samt satsa mer på förpackningsutveckling.


GETRAG All Wheel Drive AB is situated in the city of Köping, Sweden. The company develops, manufactures and supplies transmission components for the auto¬motive industry. Through project 580-9 the company is planning an assembly line for a newly developed product. For this project GETRAG wants to create a materials handling that is cost efficient, lives up to the customer demands on high quality and excludes handling of wooden pallets near the assembly line. The purpose of this thesis is therefore to suggest a cost efficient materials handling where packaging materials that give off dust or splinters are not used near the assembly line.

To examine the questions in the thesis a study on how the support of materials to the assembly line should be handled has been made. It is based on theories of lean production and packaging logistics. The study includes an analysis of today’s flow and gives suggestions for improvements. We have also evaluated the costs and effects of replacing wooden packaging with alternative packaging materials. In addition, a survey of the market for alternative packaging materials has been made.

The results show that to create an efficient handling of materials it is important to eliminate waste like over production, unnecessary storage and unnecessary transportations. To assure a constant flow of articles brought to the assembly line the replenishment should be equivalent to the consumption during a certain period of time, or multiples of this time, for all articles. Furthermore, the assembler should not be the one bringing materials to the assembly line; this should be done by a material handler.

The study also shows that different packaging should be used for different articles, depending on product characteristics and where the supplier is situated. Excluding packaging material made out of wood or cardboard results in costs that must be weighed against customer demands. When it is too expensive to let the supplier deliver the articles in a packaging that does not give of dust or splinters, a repacking station is a possible solution; in the case of project 580-9 in the form of an in-house manual unpacking before the assembly.

Our recommendation is that GETRAG All Wheel Drive AB should try to achieve a more cost efficient materials handling through lean production and six sigma and at the same time put more resources in to packaging development.

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Alcayaga, Christian Junior, and Ebba Adolfsson. "Implementering av strategi för kvalitetskontroll : Viktiga faktorer att beakta vid tillämpning av MSA & SPS." Thesis, Tekniska Högskolan, Jönköping University, JTH, Industriell organisation och produktion, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-49863.

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Books on the topic "Sex sigma"

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Six sigma demystified. 2nd ed. New York: McGraw-Hill, 2011.

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Bass, Issa. Lean six sigma using sigma XL and minitab. New York: McGraw-Hill, 2009.

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Lean six sigma using sigma XL and minitab. New York: McGraw-Hill, 2009.

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pfer, Armin To. Lean Six Sigma: Erfolgreiche Kombination von Lean Management, Six Sigma und Design for Six Sigma. Berlin: Springer, 2009.

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Six Sigma demystified. New York: McGraw-Hill, 2005.

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Lean six sigma demystified. 2nd ed. New York: McGraw-Hill, 2011.

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Arthur, Jay. Lean six sigma demystified. New York: McGraw-Hill, 2007.

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Snee, Ronald D. Leading Six Sigma. Upper Saddle River: Financial Times - Domestic (Jim), 2007.

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Brussee, Warren. All about Six Sigma. New York: McGraw-Hill, 2005.

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Six Sigma for Managers. New York: McGraw-Hill, 2002.

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Book chapters on the topic "Sex sigma"

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Töpfer, Armin, Gebhard Mayer, and Swen Günther. "Konzeption und Umsetzung von Six Sigma Trainings in einem mehrstufigen Einführungsprozess." In Six Sigma, 244–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09912-4_9.

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Töpfer, Armin, and Swen Günther. "Steigerung des Unternehmenswertes durch Null-Fehler-Qualität als strategisches Ziel: Überblick und Einordnung der Beiträge." In Six Sigma, 3–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09914-8_1.

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Crom, Steve. "Europäische Implementierungsansätze für Six Sigma — Eine interkulturelle Betrachtung." In Six Sigma, 243–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09914-8_12.

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Kleemann, Bernhard, Nicole Seitz, and Hans-Jürgen Wio. "Das Führungskräftetraining für top+Qualität und Six Sigma bei Siemens Power Generation." In Six Sigma, 213–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09914-8_10.

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Töpfer, Armin. "Anforderungen an die Unternehmenskultur bei der Einführung von Six Sigma." In Six Sigma, 224–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09914-8_11.

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van Driel, Otto P., Willi Kotte, and Peter Rudberg. "Beschleunigung der Verbreitung von Six Sigma in Europa durch den European Six Sigma Club." In Six Sigma, 34–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09916-2_2.

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Wessel, Dieter. "Fünf-Phasen-Prozess zur Einführung von Six Sigma bei Viterra Energy Services als Dienstleistungsunternehmen." In Six Sigma, 359–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09916-2_20.

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Leyendecker, Bert. "Ableitung von Six Sigma Projekten aus den Unternehmenszielen." In Six Sigma, 374–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09916-2_21.

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Krauer, Reinhard. "Der Projektauswahlprozess — Schlüsselfaktor des Six Sigma Programms bei Norgren-Herion." In Six Sigma, 387–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09916-2_22.

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Töpfer, Armin, and Swen Günther. "Six Sigma im Wirkungsverbund mit ISO 9000:2000." In Six Sigma, 257–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-09916-2_13.

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Conference papers on the topic "Sex sigma"

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Covatti, Andressa, and Jorge Luis Nicolas Audy. "Utilização de Six Sigma na Melhoria de Processos de Software Alinhados ao Planejamento Estratégico – Um Caso Prático da Dell." In Simpósio Brasileiro de Qualidade de Software. Sociedade Brasileira de Computação - SBC, 2007. http://dx.doi.org/10.5753/sbqs.2007.15596.

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A melhoria dos processos de desenvolvimento de software são fundamentais para as organizações que implementam programas de qualidade. Os diversos modelos e metodologias oferecidos pelo mercado precisam ser utilizados de forma a contribuir para a implementação dessas melhorias sem causar re-trabalho e aumento de custos para a organização. Além disso, o ideal é que os programas de melhoria estejam alinhados com os objetivos estratégicos da organização. Dessa forma a utilização do BSC, CMMI e Six Sigma de forma integrada pode ajudar a organização a trabalhar em melhorias de processo de software utilizando o Six Sigma para melhorar os processos criados com base no CMMI e de forma alinhada ao planejamento estratégico da organização conforme mostra o caso prático descrito nesse artigo.
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Inozu, Bahadir, M. J. Niccolai, Clifford A. Whitcomb, Brian Brian MacClaren, Ivan Ivan Radovic, and David David Bourg. "New Horizons for Shipbuilding Process Improvement." In SNAME Maritime Convention. SNAME, 2005. http://dx.doi.org/10.5957/smc-2005-p24.

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“In 2004, we start an Initiative --Lean Six Sigma Initiative to achieve our Op Ex Goals. We will be conducting a number of on boarding sessions for Six Sigma with senior leaders in DOD, NAVY, and most importantly Defense Contractors. We will require Six Sigma training for direct reports.” John Young, ASN (RDA) The announcement of NAVSEA’s Lean Six Sigma initiative has ushered in a new era in the ways that naval combatants are designed, built, and operated. As the Navy’s budgetary constraints increase in the coming years, the challenges they face in the 21st century will grow. New levels of process performance are mandated. This paper first highlights the opportunities that the Lean Six Sigma roadmap brings to shipbuilding process improvement and then details the efforts to adopt Lean Six Sigma and align it with the continuous improvement initiative at NGSS. Aspects of management strategy, Design for Six Sigma, replicating process improvements as part of integrating Lean Six Sigma with Knowledge Management are discussed.
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Gardner, Martha, and Gene Wiggs. "Design for Six Sigma: The First 10 Years." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27933.

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Six Sigma was launched at GE in 1995 by Jack Welch as a systematic way of improving the quality of delivered products and reducing cost across the entire Corporation. Soon after the first wave of Master Black Belts returned from their initial training, it was obvious that GE needed a “version” of Six Sigma adapted by a Design Engineering community that was focused on achieving specific goals of improved product performance, reliability and producibility while achieving a simultaneous reduction in the design cycle time for new products. The purpose of this paper is to share our lessons learned in adapting Six Sigma to the needs of the Design Engineering Community.
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Kazmer, David, David Hatch, and Liang Zhu. "Investigation of Variation and Uncertainty in Six-Sigma." In ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/detc2002/dfm-34156.

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Six Sigma is a widely used moniker to represent a set of design and manufacturing techniques, the aggregate of which should effectively improve quality and lower cost. Six Sigma implies that six standard deviations of performance should be maintained between the performance mean and the closest specification limit. When multiple performance attributes must be satisfied, aggregation techniques may be applied for evaluation and optimization. This paper evaluates two common aggregation techniques, the multi-process capability index and the process desirability index, and investigates their appropriateness relative to variation and uncertainty. These methods are applied to a data set for DVD manufacturing generated according to a Central Composite Design for 6 processing variables and 8 quality attributes. The results indicate that both indices may lead to erroneous design and manufacturing decisions with poor estimation of quality and cost.
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Pourgol-Mohamad, Mohammad. "Six-Sigma Challenges in Services With Human-Based Data: An Investigative Case Study for Clients’ Satisfaction in Gas Company." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10344.

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Abstract Improvement of business processes, increasing customer satisfaction, and reducing organizational costs are important issues that institutions deal with. In this context, six sigma methodology has been considered as a systematic approach to achieve these goals by many organizations. In recent years, non-industrial sectors, where human data are involved, have also applied this technique to improve their processes quality. For application of six sigma procedure for non-industrial issues, there are several challenges that are not encountered in the conventional implementation of Six Sigma procedure. Most of these challenges are experienced on gathering the human (operators, experts) expressed data required for the six sigma projects on the phase of measurement and analysis. The challenges identification and analysis give the ability to address them and provide practical solutions. In this study, in addition to different stages of the Six Sigma methodology, its implementation has been investigated in the non-industrial sector in the DMAIC phases. The challenges dealt with in this research include the impact of external factors on human data, limitations in the design of experiments for human data, qualitative data and discrete data as well as one-sided data. Also, considering a case study on the implementation of six sigma methodology to enhance customer satisfaction in an East Azerbaijan Gas company, strategies are presented for overcoming these obstacles.
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Antić, Slobodan. "Lean Six Sigma: Methodology and Practice in Operations Management Case: Bottle Water Distribution in Serbia." In XIV. International Conference on Logistics in Agriculture 2020. University of Maribor Press, 2020. http://dx.doi.org/10.18690/978-961-286-406-4.3.

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Six Sigma and Lean Manufacturing are the two most popular and successful programs espoused by the industries over the last few decades. Many companies such as Toyota, Danaher Corporation, General Electric, Motorola and many others have achieved impressive results by implementing either a Lean or Six Sigma methodology in their organisation. Six Sigma, originated in Motorola in mid 1980s, brought revolution in the industries worldwide and has become the long term business strategy to achieve competitive advantage and to excel in operations excellence. Six Sigma is widely recognized as a methodology that employs statistical and non-statistical tools and techniques to maximize an organization’s Return on Investment (ROI) through the elimination of defects in processes (Antony et al. 2011). Lean Manufacturing, on the other hand, was another quality initiative proposed by Americans in response to compete with Japanese manufacturers and its superior manufacturing techniques (following the concept of Toyota Production System (TPS) to resolve quality problems in their organization) as their import became serious concern to western producers.
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Hong, Xiaopeng, Hong Chang, Xilin Chen, and Wen Gao. "Boosted Sigma Set for Pedestrian Detection." In 2010 20th International Conference on Pattern Recognition (ICPR). IEEE, 2010. http://dx.doi.org/10.1109/icpr.2010.739.

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Feldner, Mike. "A Six Sigma Approach to Improving Exhaust Valve Reliability in a Stoichiometric Natural Gas Engine." In ASME 2009 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/ices2009-76094.

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Six-sigma is a data-based problem solving methodology that is used to reduce production variation in order to improve product quality. It has typically been used by successful companies to optimize operational processes and assist with waste reduction. Over the past several years, Dresser Waukesha has incorporated Six-sigma tools into several different areas of product engineering. This paper will illustrate how Dresser Waukesha has used Six-sigma tools to assist with product design and validation processes for reliability improvements of exhaust valves. Several specific examples of Six-sigma tools will be provided as the improvement project follows the DMAIC process. The scope of this discussion will be limited to using Six-sigma tools in the measure, analyze and improve phases of the project, where product engineering is most involved. In the measure phase, design of effective ratings charts that transform subjective visual assessments into quantifiable data for purposes of evaluating the effects of specific design parameters on critical wear metrics will be shown. Also, gauge repeatability & reproducibility for precise wear measurements will be discussed. During the analyze phase, the use of box plots, design of experiments tools and ANOVA statistical analyses for material selection, valve guide length and stem clearance determination will be explained. During the improve phase, an example of using the Pugh Matrix to compare different analytical concepts will be provided. Finally, an evaluation methodology that uses statistical capability analyses instead of traditional analyses of individual valve wear to validate long-term reliability and to minimize required test time will be explained.
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Nagamine, Fábio S. "Six Sigma applied to improve Integration Build process." In Simpósio Brasileiro de Qualidade de Software. Sociedade Brasileira de Computação - SBC, 2007. http://dx.doi.org/10.5753/sbqs.2007.15595.

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Integration Build is a Software Configuration Management process intended to ensure that a stable up to date baseline is available for further development or for client release. Six Sigma is a methodology for process improvement that uses measurements and statistical analysis. This article presents a case study showing how Six Sigma was applied to reduce human effort, improve quality and provide a quantitative analysis on the Integration Build process of a Motorola Software Component.
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Nithyanandam, Ganesh Kumar, Matthew Franchetti, and Radhakrishnan Pezhinkattil. "Near Minimum Material Zone: A New Concept to Reduce the Weight of the Aircraft Components in Machining Using Lean Six Sigma Methodology." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65555.

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A component in machining is accepted when the dimensions are within the tolerance specifications. In aircraft components machining, controlling the weight of the components is of high importance. In this paper, a new concept called near minimum material zone was introduced, which would address the control of the weight of the aircraft components in machining. To prove this concept, two sets of experiments with 20 samples were conducted using Deckel Maho CTX310 ECO VI CNC machine. The first experiment was conducted with normal machining processes. The second experiment was conducted using a new concept. Lean Six Sigma DMAIC methodology was adopted for this study. Several Six Sigma tools such as process capability analysis (Cp, Cpk), cause and effect diagram, X Hi/Lo and R-charts, etc. were used. The paper suggests that this new concept not only helped to control the weight of the aircraft components but also improved the desired quality by minimizing the dispersion of the component dimensions to obtain higher sigma level.
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Reports on the topic "Sex sigma"

1

Author, Not Given. Performance Excellence Lean Six Sigma. Office of Scientific and Technical Information (OSTI), August 2018. http://dx.doi.org/10.2172/1477022.

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Singledecker, Steven. Lean Six Sigma Yellow Belt Certification. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1164463.

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Mandelbaum, Jay, Heather W. Williams, and Anthony C. Hermes. Value Engineering Synergies with Lean Six Sigma. Fort Belvoir, VA: Defense Technical Information Center, September 2010. http://dx.doi.org/10.21236/ada531791.

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Buijvoets, Martinus, Bob Walrave, Jukka-Matti Turtiainen, and Gregory Watson. Replicating Lean Six Sigma Green Belt Education. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317328.

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Wannamaker, A. L. Reservoir continuous process improvement six sigma methodology implementation. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/446291.

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Author, Not Given. Y-12 Lean Six Sigma Marketing Plan 2018. Office of Scientific and Technical Information (OSTI), August 2018. http://dx.doi.org/10.2172/1477021.

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Singledecker, Steven. Lean Six Sigma Yellow Belt Process Management System. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1164464.

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Paige, Karen S. Environmental Data Flow Six Sigma Process Improvement Savings Overview. Office of Scientific and Technical Information (OSTI), May 2015. http://dx.doi.org/10.2172/1182615.

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Laureani, Alessandro. Agile and Lean Six Sigma integration: a Leadership framework. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317325.

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Hoffa, David, Chad Laux, and Manal Alduraibi. Improve Outcomes in Lean Six Sigma with Servant Leadership. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317339.

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